WO2024032222A1 - Communication method and apparatus - Google Patents

Communication method and apparatus Download PDF

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Publication number
WO2024032222A1
WO2024032222A1 PCT/CN2023/104072 CN2023104072W WO2024032222A1 WO 2024032222 A1 WO2024032222 A1 WO 2024032222A1 CN 2023104072 W CN2023104072 W CN 2023104072W WO 2024032222 A1 WO2024032222 A1 WO 2024032222A1
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WO
WIPO (PCT)
Prior art keywords
dci
timer
multicast
terminal device
drx
Prior art date
Application number
PCT/CN2023/104072
Other languages
French (fr)
Chinese (zh)
Inventor
刘南南
常俊仁
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202210993583.7A external-priority patent/CN117676472A/en
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2024032222A1 publication Critical patent/WO2024032222A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]

Definitions

  • the present application relates to the field of communication technology, and in particular, to a communication method and device.
  • Multicast and broadcast services (MBS) in new radio (NR) systems support multicast and broadcast.
  • Multicast can support point-to-point (PTP) transmission and point-to-multipoint (PTM) transmission.
  • multicast PTM transmission supports hybrid automatic repeat request (HARQ) feedback mechanism.
  • the network device uses the PTM transmission method to send the initial downlink control information (DCI) and/or data. If the terminal device receives the DCI but fails to successfully decode the DCI scheduled data, the terminal device may feedback a denial response to the network device. (Negative-Acknowledgment, NACK).
  • Network equipment can use PTM transmission mode or PTP transmission mode for HARQ retransmission.
  • the terminal device may transmit the DCI sent through the PTP transmission mode. DCI and/or data are misjudged as unicast transmission or other multicast transmission.
  • Embodiments of the present application provide a communication method and device, which facilitates terminal equipment to receive DCI transmitted through multicast, improves communication reliability, reduces communication delay, and/or reduces power consumption of terminal equipment.
  • embodiments of the present application provide a communication method that can be applied to a terminal device (such as a device or chip of the terminal device).
  • the method includes: meeting the first condition and performing one or more of the following: controlling the discontinuous reception DRX associated with the multicast to be active time; stopping the first timer or shortening the remaining running time of the first timer.
  • the first timer is an inactivation timer corresponding to the DRX associated with unicast, that is, the first timer is drx-InactivityTimer.
  • the first condition includes: the first data includes the first logical channel identifier LCID, and the first downlink control information DCI is not received. The first data is scheduled by the second DCI, and the second DCI is transmitted in unicast mode.
  • the first LCID is the identifier of the first group multicast broadcast service channel MTCH, the first DCI is transmitted in a multicast manner, and the first DCI is used to schedule the first data.
  • the terminal device determines that the first data is multicast retransmission data by satisfying the first condition. Therefore, the second DCI that schedules the first data and is transmitted in a unicast manner schedules multicast retransmission, and the terminal device can perform one or more of the above.
  • the terminal device executes the control that the DRX associated with the multicast is in the activation time, which can avoid the inactivation of the DRX associated with the multicast due to not being started or restarted due to not receiving the first DCI transmitted through multicast. Timer situation. As a result, the DRX associated with multicast is not in the activation time, and subsequent terminal devices cannot receive DCI transmitted through multicast. Therefore, this method is conducive to terminal equipment receiving DCI transmitted through multicast, improving communication reliability and reducing communication delay.
  • the terminal device stops the first timer or shortens the remaining running time of the first timer, which can avoid misjudgment of the DCI (second DCI) for multicast retransmission through unicast mode.
  • the DCI is initially transmitted through unicast this time, the excess power consumption caused by starting or restarting the first timer can save the power consumption or power consumption of the terminal device.
  • the terminal device executes the control multicast associated DRX to be in the activation time, and stops the first timer or shortens the remaining running time of the first timer to avoid not receiving the first DCI transmitted through multicast mode.
  • the subsequent failure to receive DCI transmitted through multicast means that it is beneficial for the terminal device to receive the DCI transmitted through multicast, improve communication reliability, reduce communication delay, and avoid errors in the second DCI transmitted through unicast.
  • the excess power consumption caused by starting or restarting the first timer can save the power consumption or power consumption of the terminal device.
  • controlling the multicast associated discontinuous reception DRX to be in the activation time includes: starting or restarting one or more of the following timers: the second timer, the third timer, the fourth timer timer.
  • the second timer is an inactivation timer corresponding to the DRX associated with the multicast, that is, the second timer is drx-InactivityTimerPTM.
  • the third timer is the duration timer corresponding to the DRX associated with the multicast, that is, the second timer is drx-onDurationTimerPTM.
  • the fourth timer is a retransmission timer corresponding to the DRX associated with the multicast, and is a downlink retransmission timer corresponding to the DRX associated with the multicast, that is, the fourth timer is drx-RetransmissionTimerDL-PTM.
  • the terminal device can start or restart one or more of the second timer, the third timer and the fourth timer so that the DRX associated with the multicast is at the activation time. Therefore, even if the terminal device does not receive the DCI initially transmitted through multicast this time (ie, the first DCI), subsequent terminal devices can still receive other DCI transmitted through multicast.
  • the first condition also includes any one or more of the following: the DRX of the multicast association is not in the activation time; the DRX of the multicast association is not in the activation time; After the second DCI, the second timer is not started or restarted; or after receiving the third DCI, the second timer is not started or restarted; the third DCI is used to schedule the first data, and the third DCI is before the second DCI.
  • the first data includes the first LCID
  • the terminal device determines that the DRX associated with the multicast is not in the activation time, it indicates that the terminal device has not received the first DCI through multicast.
  • the first DCI is transmitted without starting or restarting the inactivation timer corresponding to the multicast-associated DRX, so that the multicast-associated DRX is not in the activation time.
  • the terminal device controls the DRX associated with the multicast to be in the activation time.
  • the first condition further includes: the second duration is less than the configured duration of the second timer, and the second duration is The duration from when the terminal device receives the second DCI or the third DCI to when the terminal device successfully decodes the first data.
  • the terminal device if the second timer is not started or restarted after the terminal device receives the second DCI, it means that after the terminal device receives the second DCI, it does not receive other DCI initially transmitted through multicast, and thus it has not been started yet. Or restart the inactivation timer corresponding to the DRX associated with the multicast. Therefore, in this case, the terminal device also needs to control the activation time of the DRX associated with multicast, so that it can subsequently receive other DCI transmitted through multicast.
  • the terminal device receives the third DCI
  • the third DCI schedules the first data and is the first DCI received by the terminal device for PTP retransmission.
  • the terminal device did not receive other DCI for initial transmission through multicast, so the inactivation timer corresponding to the DRX associated with multicast was not started or restarted. Therefore, in this case, in order for the terminal device to subsequently receive other DCI transmitted through multicast, the terminal device also needs to control the activation time of the DRX associated with the multicast.
  • the first condition when the terminal device performs control multicast associated discontinuous reception DRX at the activation time, the first condition also includes multiple of the above three items, so that the terminal device can subsequently receive other DCI transmitted through multicast.
  • the first condition also includes: the second DCI or the third DCI is received, and the first timer is not running; and/or; the second DCI or the third DCI is received. After the third DCI, the first timer is not started or restarted.
  • the terminal device When the terminal device receives the second DCI or the third DCI and the first timer does not run, it indicates that the terminal did not receive the DCI transmitted through unicast before receiving the second DCI or the third DCI.
  • the first timer does not start or restart, indicating that after the terminal device receives the second DCI or the third DCI, it does not receive other DCI transmitted through unicast mode.
  • the terminal device does not receive the first DCI transmitted through multicast, and the second DCI or the third DCI is received, the first timer does not run; and/or; After the second DCI or the third DCI, the first timer is not started or restarted. Then, when the terminal device receives the first data, the operation of the first timer is caused by the terminal device misjudging the second DCI or the third DCI as the DCI transmitted through unicast during the initial transmission. Therefore, the first timer is stopped to reduce excess power consumption caused by the operation of the first timer.
  • the first condition also includes: receiving the second DCI or the third DCI, and the first timer runs; and/or receiving After the second DCI or the third DCI, the first timer is not started or restarted.
  • the first timer runs, indicating that before the terminal equipment receives the second DCI or the third DCI, the terminal equipment starts or restarts the third DCI due to receiving other DCI initially transmitted through unicast mode.
  • a timer Therefore, if the terminal device determines that the first data is multicast retransmission data by satisfying the above first condition, that is, it determines that the second DCI or the third DCI that schedules the first data is the multicast DCI for this retransmission, and receives To the second DCI or the third DCI, the first timer runs.
  • the operation of the first timer is started or restarted because the terminal device misjudges the second DCI or the third DCI as the DCI initially transmitted through unicast mode.
  • the terminal device needs to shorten the remaining running time of the first timer to ensure that the remaining running time of the first timer is started or restarted before receiving the second DCI or third DCI, thereby reducing the remaining running time due to startup or restart. The excess power consumption caused by the first timer.
  • the first timer is not started or restarted, indicating that after the terminal device receives the second DCI or the third DCI, the first timer is not started or restarted due to receipt of other unicast transmissions. A timer. Therefore, the first timer is due to the second If the second DCI or third DCI is actually a multicast retransmission, the first timer should not be started or restarted. Therefore, the terminal device needs to shorten the remaining running time of the first timer.
  • the above-mentioned second DCI is transmitted in a unicast manner, including: the second DCI is scrambled by the cell-radio network temporary identifier C-RNTI. It can be seen that the second DCI is scrambled by C-RNTI, which is equivalent to the second DCI being transmitted in a unicast manner.
  • the above-mentioned first DCI is transmitted in a multicast manner, including: the first DCI is scrambled by the first RNTI.
  • the first RNTI is used for one or more of the following: used for multicast, used for scheduling multicast dynamic resources, and used for scheduling retransmission resources of multicast dynamic resources.
  • the first LCID is associated with the first RNTI, and/or the multicast-associated DRX is associated with the first RNTI.
  • the first RNTI is used for one or more of the following: used for multicast, used for scheduling multicast dynamic resources, and used for scheduling retransmission resources of multicast dynamic resources.
  • this application also provides a communication device.
  • the communication device has the ability to implement part or all of the functions of the terminal device described in the first aspect.
  • the communication device may have the functions of some or all of the embodiments of the terminal device described in the first aspect of this application, or may have the functions of independently implementing any of the embodiments of this application.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a processing unit and a communication unit, and the processing unit is configured to support the communication device to perform corresponding functions in the above method.
  • the communication unit is used to support communication between the communication device and other communication devices.
  • the communication device may further include a storage unit coupled to the processing unit and the communication unit, which stores necessary program instructions and data for the communication device.
  • the communication device includes: a processing unit and a communication unit; the communication unit is used for sending and receiving data/signaling; and the processing unit is used for:
  • the first condition includes: the first data includes the first logical channel identifier LCID, and the first downlink control information DCI is not received;
  • the first data is scheduled by the second DCI, the second DCI is transmitted through unicast, the first LCID is the identifier of the first multicast broadcast service channel MTCH, and the first DCI is transmitted through Transmitted in a multicast manner, the first DCI is used to schedule the first data.
  • the communication unit may be a transceiver or a communication interface
  • the storage unit may be a memory
  • the processing unit may be a processor
  • the communication device includes: a processor and a transceiver; the transceiver is used for sending and receiving data/signaling; the processor is used for:
  • the first condition includes: the first data includes the first logical channel identifier LCID, and the first downlink control information DCI is not received;
  • the first data is scheduled by the second DCI, the second DCI is transmitted through unicast, the first LCID is the identifier of the first multicast broadcast service channel MTCH, and the first DCI is transmitted through Transmitted in a multicast manner, the first DCI is used to schedule the first data.
  • the communication device is a chip or a chip system.
  • the processing unit can also be embodied as a processing circuit or a logic circuit; the transceiver unit can be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip or chip system.
  • the processor may be used to perform, for example, but not limited to, baseband related processing
  • the transceiver may be used to perform, for example, but not limited to, radio frequency transceiver.
  • the above-mentioned devices may be arranged on separate chips, or at least part or all of them may be arranged on the same chip.
  • processors can be further divided into analog baseband processors and digital baseband processors.
  • the analog baseband processor can be integrated with the transceiver on the same chip, and the digital baseband processor can be set on an independent chip. With the continuous development of integrated circuit technology, More and more devices can be integrated on the same chip.
  • the digital baseband processor can be integrated with a variety of application processors (such as but not limited to graphics processors, multimedia processors, etc.) on the same chip.
  • application processors such as but not limited to graphics processors, multimedia processors, etc.
  • Such a chip can be called a system on a chip (SLC). Whether each device is independently installed on different chips or integrated on one or more chips often depends on the needs of product design.
  • SLC system on a chip
  • this application also provides a processor for executing the various methods mentioned above.
  • the process of sending the above information and receiving the above information in the above method can be understood as the process of the processor outputting the above information, and the process of the processor receiving the input above information.
  • the processor When outputting the above information, the processor outputs the above information to the transceiver for transmission by the transceiver. After the above information is output by the processor, it may also need to undergo other processing before reaching the transceiver.
  • the processor receives the above information input, the transceiver receives the above information and inputs it into the processor. Furthermore, after the transceiver receives the above information, the above information may need to undergo other processing before being input to the processor.
  • processor output and reception, input operations rather than the transmitting and receiving operations performed directly by RF circuits and antennas.
  • the above-mentioned processor may be a processor specifically designed to perform these methods, or may be a processor that executes computer instructions in a memory to perform these methods, such as a general-purpose processor.
  • the above-mentioned memory can be a non-transitory memory, such as a read-only memory (ROM), which can be integrated on the same chip as the processor, or can be separately provided on different chips.
  • ROM read-only memory
  • this application also provides a communication system, which includes one or more network devices and one or more terminal devices.
  • the system may also include other devices that interact with network devices and terminal devices.
  • the present application provides a computer-readable storage medium for storing instructions that, when executed by a computer, implement the method described in any one of the above first aspects.
  • the present application also provides a computer program product including instructions that, when run on a computer, implement the method described in any one of the above first aspects.
  • the present application provides a chip system.
  • the chip system includes a processor and an interface.
  • the interface is used to obtain programs or instructions.
  • the processor is used to call the programs or instructions to implement or support terminal device implementation.
  • the first aspect involves the functions. For example, at least one of the data and information involved in the above method is determined or processed.
  • the chip system further includes a memory, and the memory is used to store necessary program instructions and data for the terminal.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the present application provides a communication device, including a processor for executing a computer program or executable instructions stored in a memory.
  • the computer program or executable instructions When executed, the device performs the steps of the first aspect. Methods in possible implementations.
  • processor and memory are integrated;
  • the above-mentioned memory is located outside the communication device.
  • beneficial effects from the second aspect to the eighth aspect can be referred to the beneficial effects from the first aspect, and will not be described again here.
  • Figure 1 is a schematic system structure diagram of a communication system provided by an embodiment of the present application.
  • Figure 2 is a schematic diagram of a discontinuous reception cycle provided by an embodiment of the present application.
  • Figure 3a is a schematic diagram of channel mapping provided by an embodiment of the present application.
  • Figure 3b is a physical diagram of a terminal device provided by an embodiment of the present application.
  • Figure 4a is a transmission schematic diagram provided by an embodiment of the present application.
  • Figure 4b is another transmission schematic diagram provided by an embodiment of the present application.
  • FIG. 5 is another transmission schematic diagram provided by an embodiment of the present application.
  • Figure 6 is another transmission schematic diagram provided by an embodiment of the present application.
  • Figure 7 is a schematic diagram of a communication method provided by an embodiment of the present application.
  • Figure 8 is another transmission schematic diagram provided by an embodiment of the present application.
  • Figure 9 is a communication schematic diagram provided by an embodiment of the present application.
  • Figure 10 is a schematic flow chart of another communication method provided by an embodiment of the present application.
  • Figure 11 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 12 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • Figure 13 is a schematic structural diagram of a chip provided by an embodiment of the present application.
  • first and second in the description, claims and drawings of this application are used to distinguish different objects, rather than describing a specific sequence. “First” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include one or more of these features. In the description of this embodiment, unless otherwise specified, “plurality” means two or more.
  • “plurality” means two or more.
  • “And/or” is used to describe the relationship between associated objects, indicating that three relationships can exist.
  • a and/or B can mean: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural.
  • the character “/” generally indicates that the related objects are in an “or” relationship.
  • words such as “exemplary” or “for example” are used to represent examples, illustrations or explanations. Any embodiment or design described as “exemplary” or “such as” in the embodiments of the present application is not to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as “exemplary” or “such as” is intended to present related concepts in a concrete manner that is easier to understand.
  • a wireless communication system may include one or more network devices and one or more terminal devices. Wireless communication systems can also perform point-to-point communication, such as communication between multiple terminal devices.
  • the wireless communication systems mentioned in the embodiments of this application include but are not limited to: narrowband-internet of things (NB-IoT), long term evolution (LTE), 5G/6G
  • NB-IoT narrowband-internet of things
  • LTE long term evolution
  • 5G/6G The three major application scenarios of mobile communication systems: enhanced mobile broadband (eMBB), ultra-reliable low latency communication (URLLC) and massive machine type of communication (mMTC), Wireless fidelity (WiFi) system, or mobile communication system after 5G, etc.
  • eMBB enhanced mobile broadband
  • URLLC ultra-reliable low latency communication
  • mMTC massive machine type of communication
  • WiFi Wireless fidelity
  • mobile communication system after 5G etc.
  • the network device is a device with wireless transceiver function, used to communicate with the terminal device, and can be an evolved base station (evolved Node B, eNB or eNodeB) in LTE, or a 5G/6G network.
  • PLMN public land mobile network
  • BNG broadband network gateway
  • aggregation switch or non-3rd generation partnership project (3GPP) non-3rd generation partnership project
  • the network equipment in the embodiments of this application may include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, access points, future equipment that implements base station functions, and WiFi systems.
  • the access node transmitting and receiving point (TRP), transmitting point (TP), mobile switching center and device-to-device (D2D), vehicle outreach (vehicle- to-everything (V2X), machine-to-machine (M2M) communication, equipment that assumes base station functions, etc., the embodiments of the present application do not specifically limit this.
  • Network equipment can communicate and interact with core network equipment and provide communication services to terminal equipment.
  • the core network equipment is, for example, equipment in the 5G network core network (core network, CN).
  • core network As a bearer network, the core network provides an interface to the data network, provides terminals with communication connections, authentication, management, policy control, and carries data services.
  • the terminal devices involved in the embodiments of this application may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to wireless modems. Terminal devices may also be called terminals. Terminal equipment can also refer to user equipment (UE), access terminal, subscriber unit, user agent, cellular phone, smart phone, wireless data card, personal digital assistant ( personal digital assistant (PDA) computer, tablet computer Computers, wireless modems, handheld devices, laptop computers, machine type communication (MTC) terminals, communication equipment carried on high-altitude aircraft, wearable devices, drones , robots, terminals in device-to-device communication (D2D), terminals in vehicle to everything (V2X), virtual reality (VR) terminal equipment, augmented reality , AR) terminal equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, and wireless terminals in smart grids , wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, or terminal equipment in future communication networks, etc.
  • Multicast and broadcast services (MBS).
  • the broadcast multicast service mentioned in the embodiment of this application may be MBS under the NR system.
  • MBS is introduced by 3GPP to effectively utilize mobile communication network resources. It provides a data source in the mobile communication network to send data to multiple users for point-to-multipoint services, realizing network resource sharing and improving resource utilization, especially the air interface. Interface resources.
  • NR MBS supports multicast and broadcast.
  • Multicast can include any one or more of the following: multimedia broadcast multicast service (MBMS) or broadcast in MBS; multicast in MBMS or MBS; multicast in MBMS or MBS; V2X multicast; multicast in V2X; broadcast in V2X; multicast or multicast (multicast); multicast (groupcast); broadcast.
  • MBMS multimedia broadcast multicast service
  • MBS multimedia broadcast multicast service
  • MBS multicast in MBMS or MBS
  • V2X multicast multicast in V2X
  • broadcast in V2X broadcast in V2X
  • broadcast in V2X broadcast in V2X
  • the multicast service may include/replace with any one or more of the following: broadcast service, multicast service, MBS service, MBS broadcast service, MBS multicast service, V2X multicast service, and V2X broadcast service.
  • the data corresponding to the multicast service can be called multicast data.
  • Unicast can include any one or more of the following: unicast in V2X; unicast. It should be noted that unicast can be understood as unicast transmission.
  • Multicast services can also be understood as multicast sessions or MBS sessions.
  • Multicast in the embodiments of this application can also be replaced by nouns such as “multicast”.
  • multicast services can also be replaced by multicast services.
  • Multicast can provide the same service and/or the same content data to a group/multiple terminal devices at the same time.
  • multicast may be targeted at a specific group of terminal devices, and the terminal devices may need to undergo a "group joining process.”
  • unicast can be understood as providing the same service and/or the same content data to a terminal device at the same time.
  • Unicast can be understood as: for a piece of data, if you want to send it to multiple devices, you need to send the data to each device separately.
  • Multicast dynamic Transport method For the transmission of multicast services/data, or for the transmission of data related to the multicast broadcast service channel (MBS traffic channel, MTCH) corresponding to multicast, there can be any one or more of the following transmission methods: Multicast dynamic Transport method and/or multicast configuration transport method.
  • the multicast dynamic transmission method includes a point-to-point (PTP) transmission method and/or a point-to-multipoint (point-to-multipoint, PTM) transmission method.
  • PTP point-to-point
  • PTM point-to-multipoint
  • the sender sends a copy of data to a receiver.
  • the network device schedules the physical downlink shared channel (physical downlink shared channel) for the terminal device with the physical uplink control channel (PDCCH) scrambled by the UE-specific radio network temporary identity (RNTI) , PDSCH) or schedule the UE-specific RNTI scrambled PDSCH for the terminal device.
  • the PTP transmission method can also be called the C+C transmission method.
  • the UE-specific RNTI may include any one or more of the following: cell radio network temporary identifier (cell-RNTI, C-RNTI), configured scheduling RNTI (configured scheduling RNTI, CS-RNTI), and the second RNTI.
  • PTM transmission method Through PTM transmission method, the sender can send one piece of data to multiple receivers.
  • the network device uses a common RNTI-scrambled PDCCH to schedule a PDSCH for the terminal device or schedules a common RNTI-scrambled PDSCH for the terminal device.
  • the network side scrambles a DCI through a common RNTI, and the DCI is used to schedule a data scrambled through a common RNTI.
  • multiple terminal devices receive the same DCI, and these multiple The data received by each terminal device is the same.
  • the PTM transmission method can also be called the G+G transmission method.
  • the public RNTI may include any one or more of the following: group radio network temporary identifier (group RNTI, G-RNTI), group configured scheduling radio network temporary identifier (group configured scheduling RNTI, G-CS-RNTI) , the first RNTI.
  • group radio network temporary identifier group RNTI, G-RNTI
  • group configured scheduling radio network temporary identifier group configured scheduling RNTI, G-CS-RNTI
  • the multicast configuration transmission method can be understood as: the network device transmits data/multicast data to the terminal device on the multicast configuration resource; or the terminal device receives the data/multicast data sent by the network device on the multicast configuration resource.
  • the multicast configuration transmission method can also be called multicast semi-static transmission method.
  • Multicast configuration resources can also be called multicast semi-persistent scheduling (SPS) resources.
  • SPS multicast semi-persistent scheduling
  • the transmission of MTCH-related data corresponding to multicast can be collectively referred to as: multicast MTCH-related transmission for convenience of description.
  • unicast services or unicast data
  • DTCH dedicated traffic channel
  • the unicast dynamic transmission method can also be called the PTP transmission method.
  • Unicast dynamic transmission method Through this transmission method, the sender sends a piece of data to a receiver. For example, the network device schedules a PDSCH for the terminal device using a PDCCH scrambled with a UE-specific RNTI or schedules a PDSCH scrambled with a UE-specific RNTI for the terminal device.
  • the unicast configuration transmission method can be understood as: the network device transmits data to the terminal device on the unicast configuration resource; or the terminal device receives the data sent by the network device on the unicast configuration resource.
  • the unicast configuration transmission method can also be called the unicast semi-static transmission method.
  • Unicast configuration resources may also be called unicast SPS resources.
  • unicast transmission For the transmission of unicast services (or unicast data) and/or the transmission of data related to the dedicated traffic channel (DTCH) corresponding to multicast, for the convenience of description, it can be collectively referred to as: unicast transmission.
  • unicast new transmission For example, unicast new transmission, or unicast retransmission.
  • a DRX function is introduced to control the behavior of terminal equipment monitoring PDCCH.
  • the terminal device can be allowed to enter the sleep state at certain times, so that the terminal device does not need to continuously monitor the PDCCH.
  • the terminal device can return from the sleep state. Wake up, thus saving the power consumption of the terminal device to a certain extent.
  • a DRX cycle can include a duration (for example, on-duration) or wake-up time (for example, on-duration) and a sleep time (for example, opportunity for DRX).
  • a duration period after the terminal device wakes up, it waits for the duration of receiving the PDCCH.
  • the terminal device monitors the PDCCH. If the terminal device can successfully decode the PDCCH, the terminal device can remain in the awake state, or extend the activation time.
  • the sleep period it is the sleep time of the terminal device.
  • the terminal device does not need to monitor the PDCCH to save power consumption. It is understandable that the longer the sleep time of the terminal device, the lower the power consumption of the terminal device, but correspondingly, the delay of service transmission by the terminal device will increase.
  • the DRX function of the terminal device can be configured by the network device. It should be noted that even if the network device configures the DRX function for the terminal device, the terminal device can still monitor the PDCCH according to the requirements of other media access control (medium access control, MAC) layer processes, that is, when other MAC layer processes require the terminal device to When keeping monitoring the PDCCH, the terminal device needs to continue monitoring the PDCCH no matter what the status of the DRX is at this time.
  • media access control medium access control
  • the DRX parameters are configured by the network device for the MAC entity of each terminal device or for each terminal device, that is, the MAC of a terminal device Entities use a set of DRX parameters.
  • the terminal equipment uses the same set of DRX parameters for all activated cells and runs a set of DRX.
  • the master node (MN) and the secondary node (SN) respectively correspond to the MAC entity of a terminal device. Therefore, the terminal equipment has two independent sets of DRX parameters for MN and SN, and runs two sets of DRX. That is to say, the terminal device uses a set of DRX parameters and runs a set of DRX for all activated service cells in the master cell group (MCG); for all activated services in the secondary cell group (SCG) The cell uses another set of DRX parameters and runs the other set of DRX.
  • MCG master cell group
  • SCG secondary cell group
  • the activation time of DRX can include any one or more of the following: the running time of drx-onDurationTimer; the running time of drx-InactivityTimer; the running time of drx-RetransmissionTimerDL; the running time of drx-RetransmissionTimerUL ;The running time of drx-RetransmissionTimerSL; on the physical uplink control channel
  • a scheduling request (SR) is sent on the (physical uplink control channel, PUCCH), and the SR is waiting for processing; after the non-contention random access process successfully receives the random access response (RAR) (that is, not After the contention for random access (RA) is successful), the newly transmitted PDCCH indicating that it is scrambled with C-RNTI has not been received, and so on.
  • Network devices configure any one or more of the following parameters through Radio Resource Control (RRC) messages to control DRX operations:
  • RRC Radio Resource Control
  • drx-onDurationTimer a period of time at the beginning of the DRX cycle.
  • the starting or restarting position of drx-onDurationTimer can be calculated based on the parameters configured by the base station and the formula specified by the protocol.
  • drx-InactivityTimer Indicates a period of time after the PDCCH opportunity (occasion) of the uplink or downlink new transmission.
  • the terminal equipment receives PDCCH (for example, C-RNTI or CS-RNTI scrambled PDCCH), indicates that there is a new uplink or downlink transmission (ie, new transmission scheduling), and starts or restarts drx-InactivityTimer.
  • drx-RetransmissionTimerDL The maximum length of time until a downlink (DL) retransmission is received. For example, drx-HARQ-RTT-TimerUL times out and the data is not successfully decoded, start or restart drx-RetransmissionTimerDL.
  • drx-RetransmissionTimerUL Maximum time until a grant for uplink (UL) retransmission is received. For example, in the first symbol after the drx-HARQ-RTT-TimerUL timeout, drx-RetransmissionTimerUL is started or restarted for the corresponding HARQ process.
  • drx-HARQ-RTT-TimerDL The minimum length of time before the DL allocation of HARQ retransmissions that the MAC entity expects or the minimum length of time before the DL allocation of HARQ retransmissions that the MAC entity expects to receive.
  • the terminal device receives a PDCCH (e.g., C-RNTI or CS-RNTI scrambled PDCCH), indicating that there is a downlink transmission, or the terminal device receives data in the configured downlink allocation (e.g., unicast associated SPS resources), Start or restart drx-HARQ-RTT-TimerDL after feedback.
  • RTT stands for Round Trip Time.
  • drx-HARQ-RTT-TimerUL The minimum length of time before the MAC entity expects a UL HARQ retransmission grant or the minimum length of time before the MAC entity expects to receive a UL HARQ retransmission grant.
  • the terminal device sends a MAC protocol data unit (PDU) in the configured uplink grant (e.g., unicast associated SPS resource), or the terminal device receives a PDCCH indicating UL transmission, startup or restart drx-HARQ-RTT-TimerUL.
  • PDU MAC protocol data unit
  • drx-RetransmissionTimerSL Maximum time until a grant for sidelink (SL) retransmission is received.
  • drx-HARQ-RTT-TimerSL The minimum length of time before an SL retransmission grant is expected or the minimum length of time before an SL retransmission grant is expected to be received.
  • unicast DRX adds the function of DRX group.
  • DRX group Within a MAC entity, different DRX groups are distinguished for different frequency ranges. For example, DRX groups are differentiated for frequency range (FR)1 and FR2. That is, for cells on FR2, the concept of secondary DRX group is introduced. Each cell belongs to a DRX group.
  • drx-onDurationTimer and drx-InactivityTimer parameters for the cell group/DRX group of FR1 and FR2 respectively, and other DRX parameters are common.
  • Each DRX group runs one set of DRX, that is, within a MAC entity, there can be two DRX groups running two sets of DRX.
  • the activation time of a DRX group can include any one or more of the following: the running time of the drx-onDurationTimer of the DRX group; the running time of the drx-InactivityTimer of the DRX group; the corresponding The running time of drx-RetransmissionTimerDL (or any cell in the DRX group); the running time of drx-RetransmissionTimerUL corresponding to the DRX group (or any cell in the DRX group); the running time of the DRX group corresponding (or any cell in the DRX group) drx-RetransmissionTimerSL running time; SR is sent on PUCCH and SR is waiting for processing; after the non-contention random access process successfully receives the RAR (i.e. non-contention RA After success), the newly transmitted PDCCH indicating that it is scrambled with C-RNTI has not been received, etc.
  • Multicast DRX and unicast DRX are independent.
  • Multicast DRX parameters can be per (per) G-RNTI and/or G-CS-RNTI, and per (per) G-RNTI and/or G -CS-RNTI runs multicast DRX. It should be noted that there may also be a certain correlation or interaction between unicast DRX and multicast DRX. For example, when a terminal device receives G-RNTI scrambled DCI, it may also start or restart the drx-HARQ-RTT-TimerDL of unicast DRX, and/or stop the drx-RetransmissionTimerDL of unicast DRX.
  • the multicast DRX activation time may include any one or more of the following: For the G-RNTI or G-CS-RNTI The running time of drx-onDurationTimerPTM, for the The running time of drx-InactivityTimerPTM of G-RNTI or G-CS-RNTI, or the running time of drx-RetransmissionTimerDL-PTM for this G-RNTI or G-CS-RNTI.
  • the multicast DRX function can be described as follows:
  • Network devices configure any one or more of the following parameters through RRC messages to control multicast DRX operations:
  • drx-onDurationTimerPTM a period of time at the beginning of the DRX cycle.
  • the starting or restarting position of drx-onDurationTimerPTM is calculated based on the parameters configured by the base station and the formula specified by the protocol.
  • drx-InactivityTimerPTM Indicates a period of time after the PDCCH opportunity for DL new transmission scheduling.
  • the terminal equipment receives PDCCH (for example, PDCCH scrambled by G-RNTI or G-CS-RNTI), indicates that there is a new downlink transmission (ie, new transmission scheduling), and starts or restarts drx-InactivityTimerPTM.
  • drx-RetransmissionTimerDL-PTM Maximum time until DL retransmission is received. For example, drx-HARQ-RTT-TimerDL-PTM times out and the data is not successfully decoded. Start or restart drx-RetransmissionTimerDL-PTM.
  • drx-HARQ-RTT-TimerDL-PTM The minimum length of time before a DL retransmission is expected or the minimum length of time before a DL retransmission is expected to be received.
  • the terminal device receives PDCCH (for example, G-RNTI or G-CS-RNTI scrambled PDCCH), indicating that there is downlink transmission, or the terminal device receives data in the downlink allocation of the multicast configuration, starts or restarts drx-HARQ -RTT-TimerDL-PTM.
  • PDCCH for example, G-RNTI or G-CS-RNTI scrambled PDCCH
  • drx-RetransmissionTimerDL drx-HARQ-RTT-TimerDL, drx-RetransmissionTimerUL, drx-HARQ-RTT-TimerUL, drx-RetransmissionTimerSL, drx-HARQ-RTT-TimerSL, drx-HARQ-RTT-TimerDL-PTM
  • drx-RetransmissionTimerDL-PTM Any one or more of drx-RetransmissionTimerDL-PTM is per (per) HARQ process.
  • the terminal device maintains different drx-HARQ-RTT-TimerDL for different HARQ processes.
  • the terminal device maintains different drx-RetransmissionTimerUL for different HARQ processes.
  • the terminal device maintains different drx-HARQ-RTT-TimerDL-PTM for different HARQ processes.
  • the terminal device maintains different drx-RetransmissionTimerDL-PTM for different
  • any one or more of drx-HARQ-RTT-TimerDL-PTM and drx-RetransmissionTimerDL-PTM is per (per) G-RNTI and/or G-CS-RNTI, or per per multicast/multicast service.
  • the terminal equipment has different G-RNTI and/or G-CS-RNTI, or the terminal equipment maintains different drx-HARQ-RTT-TimerDL-PTM for different multicast/multicast services.
  • the terminal equipment maintains different drx-RetransmissionTimerDL-PTM for different G-RNTI and/or G-CS-RNTI, or for different multicast/multicast services.
  • DRX-related content please refer to 3GPP TS 38.321: "NR; Medium Access Control (MAC); Protocol specification", which will not be repeated here.
  • Logical channels corresponding to multicast include DTCH and MTCH.
  • Logical channels corresponding to unicast include DTCH.
  • Figure 3a is a schematic diagram of channel mapping.
  • the corresponding logical channels, transmission channels, and physical channels are: DTCH and MTCH, downlink-shared channel (DL-SCH), and physical downlink shared channel (PDSCH). .
  • a multicast service may correspond to/include one or more MBS Radio Bearers (MBS Radio Bearer, MRB).
  • MBS Radio Bearer MRB
  • MRB MBS Radio Bearer
  • One RB/MRB corresponds to one PDCP entity.
  • a PDCP entity of the terminal device may correspond to an RLC entity of the terminal device (for example, a PTP RLC entity or a PTM RLC entity), or it may correspond to two RLC entities (for example, a PTP RLC entity and a PTM RLC entity).
  • the packet data convergence protocol (PDCP) entity corresponds to the PTP radio link control (RLC) entity.
  • PTP RLC entities and PTM RLC entities both correspond to MAC entities.
  • the logical channel corresponding to the PTP RLC entity is DTCH
  • the logical channel corresponding to the PTM RLC entity is MTCH.
  • MTCH and DTCH are logical channels corresponding to different RLC entities.
  • multicast data may be associated with DTCH or MTCH.
  • a multicast service it may correspond to one or more MTCHs, and/or, one or more DTCHs.
  • the LCID of each logical channel is different.
  • each logical channel For multiple logical channels corresponding to unicast services and multicast services, each logical channel The LCIDs of the channels are all different.
  • a multicast service corresponds to a G-RNTI and/or a G-CS-RNTI.
  • a multicast service may correspond to one or more MTCHs.
  • the data corresponding to the one or more MTCHs can be multiplexed together to form a MAC PDU.
  • the MAC PDU can be scheduled for transmission through the PDCCH scrambled by the G-RNTI, or the MAC PDU can be transmitted on the multicast SPS resources corresponding to the G-RNTI and/or G-CS-RNTI.
  • the retransmission of the MAC PDU can be scheduled for transmission through the G-RNTI scrambled PDCCH, or it can be performed through the C-RNTI scrambled PDCCH. Schedule transfers. If the MAC PDU is transmitted on the multicast SPS resource corresponding to the G-RNTI and/or G-CS-RNTI, the retransmission of the MAC PDU can be scheduled and transmitted through the PDCCH scrambled by the G-CS-RNTI, or it can Scheduled transmission via CS-RNTI scrambled PDCCH.
  • the monitoring of the PDCCH scrambled by the G-RNTI and/or G-CS-RNTI is controlled by the multicast DRX corresponding to the G-RNTI and/or G-CS-RNTI.
  • the transmission of MTCH-related data will affect multicast DRX.
  • the transmission of MTCH-related data may also affect unicast DRX. .
  • a multicast service may also correspond to one or more DTCHs.
  • the data corresponding to the DTCH corresponding to different multicast services and the DTCH corresponding to the unicast service can be multiplexed together to form a MAC PDU.
  • the MAC PDU can be scrambled by C-RNTI.
  • PDCCH for scheduled transmission, or the MAC PDU can be transmitted on unicast SPS resources.
  • the retransmission of the MAC PDU can be scheduled for transmission through the PDCCH scrambled by the C-RNTI.
  • the retransmission of the MAC PDU can be scheduled and transmitted through the CS-RNTI scrambled PDCCH. And the monitoring of the PDCCH scrambled by the C-RNTI or CS-RNTI is controlled by unicast DRX. It should be noted that the transmission of DTCH-related data will affect unicast DRX.
  • HARQ processes can be shared between unicast and multicast.
  • a HARQ process may be used for multicast at the first time and unicast at the second time; or in other words, a HARQ process may be associated with multicast at the first time and be used for unicast at the second time. Time and unicast association.
  • the HARQ process can be shared between multicast 1 and multicast 2.
  • a HARQ process may be used for multicast 2 for a while/first time, and for multicast 1 for a while/second time; or in other words, a HARQ process may be associated with multicast 2 for a while/first time, and then be used for multicast 1 for a while/second time. /Associated with multicast 1 at the second time.
  • HARQ processes can be shared between unicast and different multicasts.
  • a HARQ process may be used for multicast 2 for a while/first time, multicast 1 for a while/second time, and unicast for a while/third time; or in other words, a HARQ process may be used for multicast 2 for a while/second time.
  • the first time is associated with multicast 2
  • the first/second time is associated with multicast 1
  • the first/third time is associated with unicast.
  • the network device can perform HARQ retransmission through PTP transmission mode or PTM transmission mode.
  • the network device uses G-RNTI scrambled DCI to schedule G-RNTI scrambled data for initial transmission, and the network device can use C-RNTI scrambled DCI to schedule C-RNTI scrambled data for HARQ retransmission, and/ Alternatively, the network device may also use G-RNTI scrambled DCI to schedule G-RNTI scrambled data for HARQ retransmission.
  • the HARQ process ID and NDI corresponding to the HARQ retransmission are the same as those corresponding to the new transmission.
  • the network device can perform HARQ retransmission through the PTP transmission method or the PTM transmission method. For example, the network device performs initial transmission on multicast SPS resources.
  • the network device can use CS-RNTI scrambled DCI to schedule CS-RNTI scrambled data for HARQ retransmission, and/or the network device can also use G-CS.
  • -RNTI scrambled DCI schedules G-CS-RNTI scrambled data for HARQ retransmission.
  • the HARQ process ID and NDI corresponding to the HARQ retransmission are the same as those corresponding to the new transmission.
  • the terminal device can determine whether the transmission is a new transmission or a retransmission by whether the new data indication (NDI) corresponding to the same HARQ process or HARQ process ID is flipped. For example, for the same HARQ process, if the NDI of this transmission is flipped compared with the NDI of the previous transmission, the terminal device determines that this transmission is a new transmission; if no flipping occurs, the terminal device determines that this transmission is a retransmission. .
  • NDI new data indication
  • the terminal device will treat this transmission as a new transmission in any one or more of the situations shown in Table 1 below:
  • MCS SPS multicast configuration transmission
  • C-RNTI DCI dynamic scheduling transmission scrambled by C-RNTI
  • the previous transmission used DCI dynamic scheduling transmission scrambled by other G-RNTI (Dynamic scheduling via other G-RNTI).
  • This transmission uses DCI dynamic scheduling transmission scrambled by G-RNTI (i.e. Dynamic scheduling via G-RNTI). );
  • the terminal equipment receives DCI scrambled by C-RNTI or CS-RNTI, and the data scheduled by the DCI may be related to MTCH or DTCH.
  • Figure 4a is a schematic diagram of unicast transmission.
  • the network device when the network device transmits data #a, it sends the DCI of scheduled data #a 4 times, which can be understood as the network device performs the initial transmission and 3 retransmissions of data #a.
  • the 0 in the box represents that the NDI in the DCI of the scheduled data #a is 0.
  • the terminal device When the network device transmits data #b, the terminal device does not receive the DCI initially transmitted by the scheduled data #b. Then, the network device retransmits the data #b.
  • the terminal device After the terminal device receives the first DCI retransmitted by the scheduled data #b, since the NDI in the DCI received this time is compared with the previously received DCI (scheduling data# The NDI in the retransmitted DCI) has been flipped, so the terminal device will regard this retransmission of data #b as the initial transmission of data #b. Therefore, the terminal device will start or restart the drx-InactivityTimer corresponding to the DRX associated with unicast, so that the terminal device can continue to receive DCI transmitted in unicast mode.
  • the terminal device may regard the retransmission as the initial transmission and start or restart the communication with
  • the drx-InactivityTimer corresponding to the unicast-associated DRX extends the activation time of the unicast-associated DRX. Therefore, the terminal device can subsequently receive DCI transmitted in unicast mode.
  • the terminal device may not be able to correctly determine whether the data scheduled by the DCI is for unicast transmission, multicast MTCH-related transmission of the multicast service, or other groups.
  • Multicast MTCH related transmission of broadcast services The terminal device may misjudge the transmission as being for unicast transmission or multicast MTCH-related transmission for other multicast services.
  • the terminal device will not start or restart the drx-corresponding DRX associated with the multicast.
  • InactivityTimerPTM for example, for the multicast service
  • the activation time of the DRX associated with the multicast will not be aligned between the terminal device and other terminal devices and network devices that receive the multicast service, and the terminal device will not be aligned with the group receiving the multicast service.
  • the terminal equipment may enter the sleep state earlier, which may cause the terminal equipment to be unable to receive the subsequent G-RNTI or G-CS-RNTI scrambled PDCCH (or, Subsequent PTM transmissions sent by network equipment), affecting transmission reliability or increasing transmission delay, may also cause the terminal equipment to be unable to report CSI and SRS, and cannot assist the base station in multicast scheduling, affecting system performance.
  • the terminal device may misjudge the transmission as a new unicast transmission, and the terminal device may The drx-InactivityTimer corresponding to the DRX associated with unicast will be started or restarted, which may cause the terminal device to consume power and may cause the terminal device to report CSI and SRS unnecessarily.
  • the terminal device does not receive the initially transmitted DCI of data 1 transmitted through the PTM transmission mode (for example, G-RNTI scrambled DCI for scheduling), and the network device adopts the PTP transmission mode (for example, G-RNTI scrambled DCI for scheduling) C-RNTI scrambled DCI is scheduled) to retransmit data 1.
  • the previous transmission received by the terminal device for the same HARQ process corresponds to C-RNTI, and the NDI is 0.
  • the terminal device Since the NDI is flipped, the terminal device will misjudge the retransmission of data 1 through PTP transmission as a new unicast transmission, and the terminal device will start or restart the drx-InactivityTimer corresponding to the DRX associated with the unicast. .
  • the DCI schedule for retransmission of data 1 through PTP transmission mode is the retransmission of multicast MTCH related transmission.
  • terminal device #1 when a network device performs MBS transmission with multiple terminal devices, if terminal device #1 does not receive the DCI of the initial transmission of data 1 transmitted through PTM transmission mode, subsequent network devices use PTP transmission mode as the terminal device #1 retransmits data 1, that is, the network device sends the retransmitted DCI of data 1 to terminal device #1 through PTP transmission. In this case, because terminal device #1 did not receive the DCI of the initial transmission of data 1 transmitted through the PTM transmission method, terminal device #1 will not start or restart the drx-InactivityTimerPTM associated with the multicast, and thus the multicast cannot be extended.
  • terminal device #1 may subsequently be unable to receive DCI of other or subsequent data transmitted by the network device through the PTM transmission method.
  • other terminal devices in the group receive the DCI of the initial transmission of data 1 transmitted in the PTM transmission mode, so other terminal devices in the group will start or restart the drx-InactivityTimerPTM associated with the multicast, and the other terminal devices can subsequently receive the DCI for other data transmitted by PTM transmission method.
  • terminal device #1 misjudges the initial transmission of data 1 transmitted by the network device through PTM transmission as a new transmission of unicast, terminal device #1 will start or restart the drx-InactivityTimer corresponding to the DRX associated with unicast. . However, the network device will not start or restart the drx-InactivityTimer corresponding to the DRX associated with the unicast, which will bring additional power consumption to the terminal device #1.
  • the network device uses the unicast dynamic transmission mode to perform initial transmission and retransmission of data #a, and the NDI in the DCI of the initial transmission and retransmission of scheduled data #a is both 1.
  • the NDI in the DCI of the initial transmission and retransmission of network equipment scheduling data #b is both 0.
  • the network device uses the PTM transmission method for the initial transmission of data #b, but the terminal device does not receive the DCI scheduled for the initial transmission of data #b. Then the network device uses PTP transmission mode to retransmit data #b.
  • the terminal device receives the first DCI for retransmission of scheduled data #b, and the NDI in this DCI is inverted compared with the NDI in the previously received DCI (DCI for retransmission of scheduled data #a). Then, the terminal device will misjudge the retransmission of the data #b as a new unicast transmission, thereby starting or restarting the drx-InactivityTimer corresponding to the DRX associated with the unicast, extending the activation time of the DRX associated with the unicast, and causing problems to the terminal.
  • the device brings additional power consumption.
  • not received may include/understood as: not detected.
  • multicast mode may also include/replace with multicast mode or broadcast mode.
  • This application takes the multicast method as an example for explanation.
  • DCI can be replaced by PDCCH
  • PDCCH can be replaced by DCI
  • data can be replaced by PDSCH, and PDSCH can be replaced by data.
  • RNTI scrambled PDCCH/DCI/control information can be understood as: RNTI scrambled PDCCH/DCI/control information cyclic redundancy check (cyclic redundancy check, CRC), or, PDCCH/DCI/control information
  • cyclic redundancy check cyclic redundancy check, CRC
  • PDCCH/DCI/control information The CRC is scrambled by RNTI.
  • the first multicast can be understood as the first multicast service.
  • the length of time used to instruct the terminal device to wait before receiving a retransmission may include/understood as any one or more of the following: used to instruct the terminal device to receive/receive a retransmission (for example, The length of time (e.g., minimum duration) to wait before receiving/receiving a retransmission (e.g., data/DCI) (e.g., DL data). (e.g. minimum hour length).
  • the duration used to indicate that the terminal device receives a retransmission may include/be understood as: used to indicate that the terminal device receives/receives a retransmission (for example, data/DCI) (for example, DL data or SL data) (e.g., maximum duration).
  • a retransmission for example, data/DCI
  • DL data or SL data for example, DL data or SL data
  • the initial transmission can be replaced by a new transmission.
  • startup can be understood as starting or restarting.
  • not started or restarted can be understood as not started or restarted.
  • NDI flipping can be understood as different NDI, and non-inverted NDI can be understood as same NDI.
  • the embodiment of the present application takes a terminal device as an example for description.
  • the terminal device may also be replaced by the MAC entity of the terminal device or other entities of the terminal device or other devices, which is not limited by this application.
  • FIG. 7 is a schematic flowchart of the communication method 100.
  • the communication method 100 is explained from the perspective of the terminal device side.
  • the communication method 100 includes but is not limited to the following steps:
  • the terminal device receives the second downlink control information DCI transmitted in unicast mode.
  • the second DCI transmitted in unicast mode may include/understand as: the second DCI scrambled by the second RNTI, or the second DCI associated with the second RNTI.
  • the second RNTI can be used for any one or more of the following: for unicast, for scheduling dynamic resources, for retransmission of dynamic resources, for activating configuration resources, for reactivating configuration resources, for Deactivate configuration resources, which are used to schedule retransmission resources of configuration resources for scrambling (for example, for scrambling PDCCH or PDSCH).
  • the second RNTI may include/be C-RNTI and/or CS-RNTI.
  • the second DCI is used to schedule the first data (eg, the first data transmitted in a unicast manner).
  • the first data transmitted in a unicast manner may include/be understood as: the first data scrambled by the second RNTI, or the first data associated with the second RNTI.
  • the second DCI is associated with the first HARQ process ID (or first HARQ process) and the first NDI.
  • the second DCI includes the first HARQ process ID and the first NDI.
  • the first data is associated with a first HARQ process ID (or first HARQ process) and a first NDI.
  • the terminal device receives the first data.
  • the terminal device receiving the first data may include: the terminal device successfully decodes the first data.
  • the terminal device executes any one or more of S103-1 and S103-2.
  • the first condition includes: the first data includes the first logical channel identifier LCID, and the terminal device does not receive the first DCI.
  • the first DCI is transmitted through multicast.
  • the first LCID is the identifier of the first multicast broadcast service service MTCH.
  • the first LCID is associated with the first multicast service.
  • the first LCID is associated with the MTCH.
  • the first data includes/is the first MAC PDU.
  • the first DCI is transmitted in a multicast manner and may include/be understood as: the first DCI scrambled by the first RNTI, or the first DCI associated with the first RNTI.
  • the first RNTI can be used for any one or more of the following: for multicast, for scheduling dynamic resources, for retransmission of dynamic resources, for activating configuration resources, for reactivating configuration resources, for Deactivate configuration resources, which are used to schedule retransmission resources of configuration resources for scrambling (for example, for scrambling PDCCH or PDSCH).
  • the first RNTI may include/be G-RNTI and/or G-CS-RNTI.
  • the first RNTI includes the first G-RNTI and/or the first G-CS-RNTI.
  • the first multicast service is associated with the first G-RNTI and/or the first G-CS-RNTI.
  • the first DCI is used to schedule first data (for example, first data transmitted in a multicast manner).
  • the first data transmitted in a multicast manner may include/understood as: first data scrambled by the first RNTI, or first data associated with the first RNTI.
  • the first DCI is used to activate multicast configuration resources (for example, the first multicast configuration resource).
  • the first multicast configuration resource is associated with any one or more of the first G-RNTI, the first G-CS-RNTI, and the first multicast service.
  • the first data is transmitted on the first multicast configuration resource.
  • the first RNTI is G-RNTI
  • the second RNTI is C-RNTI
  • the first RNTI is G-CS-RNTI
  • the second RNTI is CS-RNTI
  • the first DCI is associated with the first HARQ process ID (or first HARQ process) and the first NDI.
  • the first DCI includes the first HARQ process ID and the first NDI.
  • the first DCI may include one or more DCIs. Not receiving the first DCI may include/understood as: not receiving one DCI (for example, the first DCI), or not receiving multiple DCIs (for example, the first DCI#1 and the first DCI#2).
  • the network device may have sent the first DCI#1, which is used to schedule the first data (for example, the first data transmitted in a multicast mode), but the terminal device has not received it. to the first DCI#1; the network device may have also sent the first DCI#2, which is used to schedule the first data (for example, the first data transmitted in multicast mode), and the terminal device has not received it. to the first DCI#2.
  • not receiving the first DCI may include: not receiving the DCI used to schedule the first data (for example, the first data transmitted in the multicast mode) transmitted in a multicast manner.
  • not receiving the first DCI may include: not receiving all/any DCI used for scheduling the first data (eg, first data transmitted in a multicast manner) transmitted in a multicast manner.
  • the DCI transmitted through multicast mode may include/be understood as: DCI scrambled by the first RNTI, or DCI associated with the first RNTI.
  • the terminal device can determine according to the first LCID that the first LCID corresponds to the MTCH.
  • the terminal device may determine, according to the first LCID, whether the first data corresponds to MTCH or multicast, or which multicast service or which G-RNTI (or G-CS-RNTI).
  • the first data includes the identification of the first MTCH, indicating that the first data corresponds to the MTCH, or indicating that the first data is for multicast MTCH related transmission, or indicating that the first data is related to the first multicast service, the first G -RNTI, any one or more of the first G-CS-RNTI are associated.
  • the first LCID is associated with the first RNTI and/or the first multicast service.
  • the multicast-associated DRX is associated with the first RNTI and/or the first multicast service.
  • the multicast-associated DRX includes: the multicast-associated DRX associated with the first RNTI, or the DRX associated with the first RNTI.
  • the DRX associated with multicast controlled by the terminal device is in the activation time.
  • the terminal device controlling the multicast associated DRX to be at the activation time can be understood as/including any one or more of the following: causing the multicast associated DRX to be at the activation time; causing the terminal device to monitor the first multicast service or the first RNTI Corresponding PDCCH; extend/extend the activation time of multicast-associated DRX.
  • the terminal device controlling the DRX activation time of the multicast association may include: the terminal device starts or restarts one or more of the following timers: the second timer, the third timer, the fourth timer, the Five timers.
  • the second timer is an inactivation timer corresponding to the DRX associated with the multicast (eg, drx-InactivityTimerPTM).
  • the third timer is a duration timer corresponding to the DRX associated with the multicast (eg, drx-onDurationTimerPTM).
  • the fourth timer is a retransmission timer corresponding to DRX associated with multicast (for example, drx-RetransmissionTimerDL-PTM).
  • the fifth timer may be a newly defined timer, which is not limited by this application.
  • the duration timer corresponding to the multicast-associated DRX is used to indicate the duration of waiting for the terminal device to receive control information (eg, DCI) after waking up.
  • control information eg, DCI
  • the inactivation timer corresponding to the multicast-associated DRX is used to indicate a period of time after which the newly transmitted control information or newly transmitted data is scheduled.
  • the retransmission timer corresponding to multicast-associated DRX is used to indicate the length of time for the terminal device to receive retransmissions (for example, retransmission of DCI, retransmission of data).
  • the DRX associated with the multicast can be in the activation time.
  • the first condition may also include any one or more of the following:
  • Condition 1 The DRX associated with multicast is not in the activation time, or the second timer is not running;
  • Condition 2 After the terminal device receives the second DCI, the second timer does not start or restart; or, after the terminal device receives the second DCI, the second timer does not start or restart;
  • Condition 3 After the terminal device receives the third DCI, the second timer is not started or restarted, the third DCI is used to schedule the first data, and the third DCI is before the second DCI; or, starting from the terminal device receiving the third DCI , the second timer is not started or restarted.
  • the multicast associated DRX is not in the activation time, which may include the terminal device determining that the multicast associated DRX is not in the activation time.
  • the fact that the second timer has not been started or restarted may include: the second timer has not been started or has been restarted. It can be understood that "the second timer has not been started or restarted" does not limit whether the second timer is running.
  • the second timer is not started or restarted; or, from the time the terminal device receives the second DCI, the second timer is not started or restarted
  • the second timer is not started or restarted; or, starting from the terminal device receiving the third DCI, the second timer is not started or restarted
  • the terminal equipment receives After the third DCI or starting from the receipt of the third DCI from the terminal device, the second timer is not started due to other transmissions (for example, an initial transmission associated with the first RNTI or the first multicast service and transmitted by multicast mode) or Restart; after the terminal device starts or restarts the second timer, the second timer is not started or restarted due to other transmissions (for example, initial transmission associated with the first RNTI or the first multicast service and transmitted through multicast mode) ; After the terminal device starts or restarts the second timer
  • the second timer is not started or restarted; or, starting from the terminal device receiving the second DCI or the third DCI, the second timer is not started or restarted.
  • the second timer can include one or more of the following:
  • the terminal device After the terminal device receives the second DCI or the third DCI, or from when the terminal device receives the second DCI or the third DCI, to when the terminal device successfully decodes the first data, or when the terminal device determines that the first condition is met , or, when the terminal device will/want to control the DRX associated with multicast at the activation time, the second timer has not been started or restarted;
  • the second timer is not due to other transmissions (for example, associated with the first RNTI or the first multicast service, transmitted through multicast The initial transmission) has been started or restarted;
  • the second timer After the terminal device starts or restarts the second timer, when the terminal device successfully decodes the first data, or when the terminal device determines that the first condition is met, or when the terminal device will/want to control the DRX associated with the multicast
  • the second timer is not started or restarted due to other transmissions (for example, initial transmission associated with the first RNTI or the first multicast service and transmitted through multicast mode);
  • the second timer is not started or restarted due to other transmissions (for example, the initial transmission associated with the first RNTI or the first multicast service and transmitted through multicast mode) .
  • the second DCI is the first DCI transmitted in unicast mode and used for scheduling the first data received by the terminal device.
  • the third DCI is transmitted in unicast mode.
  • the third DCI is associated with the first HARQ process ID (or first HARQ process) and the first NDI.
  • the third DCI includes the first HARQ process ID and the first NDI.
  • the third DCI may include the first DCI transmitted in a unicast manner and used for scheduling the first data received by the terminal device.
  • the third DCI and the second DCI there may be other DCI transmitted in a unicast manner and used for scheduling the first data, which is not limited by this application.
  • the multicast-associated DRX is determined. Whether it is in the activation time. If the DRX associated with the multicast is not in the activation time, other DCI transmitted through multicast cannot be received later because the DRX associated with the multicast is not in the activation time. Therefore, the DRX of the terminal device controlling multicast is in the activation time, so that the terminal device can subsequently receive other DCI transmitted through multicast, thereby improving communication reliability and reducing communication delay.
  • the terminal device determines that the first data includes the first LCID, the terminal device does not receive the first DCI transmitted through multicast, and if the DRX associated with the multicast is at the activation time, no control is performed on the DRX associated with the multicast at the activation time. .
  • the terminal device will/want to control the DRX associated with the multicast to be active.
  • the terminal device may receive other DCI transmitted through multicast, so the terminal device starts or restarts the inactivation timer corresponding to the multicast-associated DRX, so that the multicast-associated DRX is in the activation time, thus making The terminal device aligns the activation time of the DRX associated with the multicast with other terminal devices and network devices that receive the multicast service, and subsequently the terminal device can receive DCI transmitted through multicast. Then, the terminal device no longer needs to control the activation time of the DRX associated with the multicast.
  • the terminal device determines that the first data includes the first LCID and the terminal device does not receive the first DCI transmitted through multicast
  • the second timer Not started or restarted means that after the terminal device received the second DCI or the third DCI, it did not receive other initial transmissions transmitted through multicast, so the inactivation timer corresponding to the DRX associated with the multicast was not started or restarted. Therefore, the activation time of the DRX associated with the multicast between the terminal device and other terminal devices and network devices receiving the multicast service is still not aligned. Therefore, in this case, the terminal device needs to control the activation time of the DRX associated with multicast, so that it can subsequently receive other DCI transmitted through multicast, improve communication reliability, and reduce communication delay.
  • the terminal device determines that the first data includes the first LCID and the terminal device does not receive the first DCI transmitted through multicast
  • the second timer is not started or restarted after the terminal device receives the third DCI , indicating that after the terminal device received the first DCI transmitted in unicast mode and used to schedule the first data, it did not receive other initial transmissions transmitted in multicast mode, so the DRX associated with multicast was not started or restarted. Therefore, the activation time of the DRX associated with the multicast between the terminal device, other terminal devices receiving the multicast service, and the network device is still not aligned. Therefore, in this case, the terminal device needs to control the activation time of the DRX associated with multicast, so that it can subsequently receive other DCI transmitted through multicast, improve communication reliability, and reduce communication delay.
  • the first data is data #b.
  • the terminal device transmits data #b to the terminal device, the terminal device does not receive the first DCI initially transmitted by the scheduled data #b.
  • the first DCI is transmitted through multicast.
  • the network device schedules the retransmission of data #b through the third DCI, which is transmitted in a unicast manner.
  • the terminal device received the third DCI scheduled for retransmission of data #b, but failed to successfully decode data #b. Therefore, the network device continues to schedule the retransmission of data #b through the second DCI, and the second DCI is also transmitted through unicast mode.
  • the terminal device receives the second DCI and successfully decodes data #b.
  • the terminal device may also receive other DCIs scheduled for retransmission of data #b, but none of them successfully decodes data #b. If the terminal device determines that the first data includes the first LCID, and does not receive the first DCI transmitted through multicast, and the time period between receiving the third DCI and successfully decoding data #b (i.e., Figure 8 The time period represented by T in the middle), the second timer has not been started or restarted, indicating that after the terminal device received the third DCI, it did not receive other initial transmissions transmitted through multicast mode.
  • the second timer has not been started or restarted, so the activation time of the DRX associated with the multicast between the terminal device and other terminal devices and network devices receiving the multicast service is still not aligned. Therefore, in this case, the terminal device needs to control the activation time of the DRX associated with multicast, so that it can subsequently receive other DCI transmitted through multicast, improve communication reliability, and reduce communication delay.
  • the configured duration of the second timer is less than the certain time , even if other terminal equipment receives the DCI that schedules the first data transmitted through multicast and starts the second timer, at the time point when the terminal equipment correctly decodes the first data, other terminal equipment receives the DCI and transmits through multicast.
  • the second timer started or restarted by scheduling the DCI of the first data has also timed out. In this case, if the terminal device starts the second timer, it is unnecessary and will increase the power consumption of the terminal device.
  • the certain time may also consider the configured duration of the sixth timer and/or the seventh timer.
  • the configuration time of the server is not be considered.
  • the first condition may also include condition 8.
  • Condition 8 The second duration is less than the configured duration of the second timer.
  • the second duration may include any one or more of the following or the sum of any one or more of the following: from when the terminal device receives the second DCI (or third DCI) to when the terminal device successfully decodes the first data. Duration; the duration from when the terminal device receives the second DCI (or third DCI) to when the terminal device determines that the first condition is met; from when the terminal device receives the second DCI (or third DCI) to when the terminal device will/want to control the multicast association
  • the second duration is: the duration from when the terminal device receives the second DCI (or third DCI) to when the terminal device successfully decodes the first data.
  • the second duration is: the sum of the duration from the terminal device receiving the second DCI (or the third DCI) to the terminal device successfully decoding the first data and the configured duration of the sixth timer.
  • the second duration is: the sum of the duration from when the terminal device receives the second DCI (or third DCI) to when the terminal device successfully decodes the first data and the configured duration of the seventh timer.
  • any one or more of the configuration duration of the second timer, the configuration duration of the sixth timer, and the configuration duration of the seventh timer may be configured by the network device to the terminal device.
  • the configured duration of the timer eg, the configured duration of the second timer
  • the preset duration of the timer eg, the preset duration of the second timer.
  • the terminal device receives the second DCI (or third DCI) may include/replace with: the time domain position of the second DCI (or third DCI).
  • the time domain position of the second DCI (or third DCI) can also be called: the time domain position where the second DCI (or third DCI) is located, or the time domain corresponding to the second DCI (or third DCI). Location.
  • the terminal device receives the second DCI (or the third DCI) may include/replace with: the starting time domain position or the ending time domain position or the intermediate time domain position of the terminal device receiving the second DCI (or the third DCI), This application is not limited.
  • the time domain position of the second DCI or the third DCI may include: the starting time domain position, the ending time domain position, or the intermediate time domain position of the second DCI (or the third DCI), which is not limited by this application.
  • the sixth timer is an RTT timer corresponding to DRX associated with multicast (eg, drx-HARQ-RTT-TimerDL-PTM).
  • the RTT timer corresponding to the multicast-associated DRX is used to indicate the length of time the terminal device waits before receiving a retransmission (for example, retransmitting DCI and/or retransmitting data).
  • the seventh timer is associated with the first DRX.
  • the seventh timer is an RTT timer corresponding to unicast (for example, drx-HARQ-RTT-TimerDL).
  • the RTT timer corresponding to unicast is used to indicate the length of time the terminal device waits before receiving a retransmission (for example, retransmitting DCI and/or retransmitting data).
  • the seventh timer is an RTT timer corresponding to the DRX associated with unicast or an RTT timer corresponding to the first DRX.
  • the seventh timer is associated with the DRX group corresponding to the first cell.
  • the seventh timer is the drx-HARQ-RTT-TimerDL associated with the DRX group corresponding to the first cell.
  • the first preset duration may be configured by the network device for the terminal device, or it may be specified by the protocol, or it may be preconfigured, or it may be stored by the terminal device, or it may be obtained by the terminal device through other methods. This application not limited.
  • the running duration of the second timer is less than or equal to the configured duration of the second timer minus the third duration.
  • the running duration of the second timer is the configured duration of the second timer minus the third duration.
  • the terminal device starts or restarts the second timer, wherein the running time of the second timer is less than or equal to the configured time length of the second timer minus the third time length, or the second timer is started or restarted.
  • the running duration of the timer is less than or equal to the configured duration of the second timer minus the third duration.
  • the running time of the second timer may include/be called: the remaining running time of the second timer.
  • the first condition includes any one or more of condition 1, condition 2, condition 3 and condition 8.
  • the running duration of the second timer is less than or equal to the configured duration of the second timer minus the third duration
  • the terminal device sets/determines that the running duration of the second timer is less than or equal to the second timer.
  • the configured duration minus the third duration may include: the terminal device sets/determines that the running duration of the second timer is less than or equal to the second timer. The configured duration minus the third duration.
  • the third time period may include any one or more of the following or the sum of any one or more of the following: from when the terminal device receives the second DCI (or third DCI) to when the terminal device successfully decodes the first data. Duration; the duration from when the terminal device receives the second DCI (or third DCI) to when the terminal device determines that the first condition is met; from when the terminal device receives the second DCI (or third DCI) to when the terminal device will/want to control the multicast association
  • the third duration may be the same as the second duration, or may be different, and is not limited by this application.
  • the second preset duration may be configured by the network device for the terminal device, or specified by the protocol, or preconfigured, or stored by the terminal device, or obtained by the terminal device through other methods. This application not limited.
  • the terminal device if the first condition is not met, the terminal device does not execute S103-1. For example, if the second duration is greater than or equal to the configured duration of the second timer, the terminal device does not start or restart the second timer.
  • the first condition includes any one or more of condition 1, condition 2, condition 3 and condition 8.
  • the first data is data #b.
  • the terminal device transmits data #b to the terminal device, the terminal device does not receive the first DCI initially transmitted by the scheduled data #b.
  • the first DCI is transmitted through multicast.
  • the network device schedules the retransmission of data #b through the third DCI, which is transmitted in a unicast manner.
  • the terminal device received the third DCI scheduled for retransmission of data #b, but failed to successfully decode data #b. Therefore, the network device continues to schedule the retransmission of data #b through the second DCI, and the second DCI is also transmitted through unicast mode.
  • the terminal device receives the second DCI and successfully decodes data #b.
  • the terminal device may also receive other DCIs scheduled for retransmission of data #b, but none of them successfully decodes data #b. If the terminal device determines that the first data includes the first LCID, and does not receive the first DCI transmitted through multicast, and the time period between receiving the third DCI and successfully decoding data #b (i.e., Figure 8 The time period represented by T in the middle), the second timer has not been started or restarted.
  • the terminal device can start or restart the second timer. , and set the running time of the second timer to (the configuration time of the second timer - T); if the time period from receiving the third DCI to successfully decoding data #b (i.e. T in Figure 8 represents a period of time) greater than or equal to the configured duration of the second timer, the terminal device may not start or restart the second timer.
  • the terminal device needs to control the multicast
  • the associated DRX is in the activation time, so that other DCI transmitted through multicast can be received later to improve communication. reliability and reduce communication delay; in other cases (for example, when the activation time of the DRX associated with the multicast between the terminal device and other terminal devices receiving the multicast service and the network device has been aligned),
  • the terminal equipment does not need to control the activation time of the DRX associated with the multicast, which can avoid unnecessary increases in power consumption of the terminal equipment and is conducive to energy saving of the terminal equipment.
  • the first condition may also include condition A, condition B, or condition C.
  • the first condition may also include condition A, condition B, or condition C.
  • Condition A includes: before the second DCI or the third DCI, the transmission for the first HARQ process or the transmission of the first HARQ process ID received by the terminal device includes any of the following:
  • Use multicast configuration transmission mode i.e. MBS SPS
  • MBS SPS Use multicast configuration transmission mode
  • the first multicast configuration resource or other multicast configuration resources or, with other G-RNTI or G-CS-RNTI or multicast services Transmission corresponding to data transmitted on the associated multicast configuration resource.
  • DCI dynamic scheduling transmission scrambled by G-CS-RNTI i.e. Dynamic scheduling via G-CS-RNTI
  • DCI dynamic scheduling transmission scrambled by G-RNTI i.e. Dynamic scheduling via G-RNTI
  • the NDI corresponding to the transmission is different from the first NDI (for example, NDI flip); for example, the first G-RNTI is used
  • other G-RNTI scrambled DCI dynamic scheduling transmission i.e. Dynamic scheduling via G-RNTI
  • the NDI corresponding to this transmission is different from the first NDI.
  • DCI dynamic scheduling transmission scrambled by C-RNTI i.e. Dynamic scheduling via other C-RNTI
  • the NDI corresponding to the transmission is different from the first NDI (for example, NDI flip).
  • the terminal device when the terminal device receives the third DCI or the second DCI in one or more of the above situations (1) to (6), the terminal device will respond to the third DCI or the second DCI.
  • the transmission is considered a unicast new transmission.
  • Condition B includes: before the second DCI or the third DCI, the transmission for the first HARQ process or the transmission of the first HARQ process ID received by the terminal device is: DCI dynamic scheduling transmission using C-RNTI scrambling (i.e. Dynamic scheduling) via other C-RNTI), and the NDI corresponding to the transmission is the same as the first NDI (for example, the NDI is not flipped). It can be understood that in this case, if the terminal device receives the third DCI or the second DCI, the terminal device will regard the transmission corresponding to the third DCI or the second DCI as a unicast retransmission.
  • the terminal device When the above condition A or condition B corresponds, if the terminal device receives the third DCI or the second DCI, the terminal device will regard the transmission corresponding to the third DCI or the second DCI as having not received the first DCI. It is a unicast transmission.
  • Condition C includes: before the second DCI or the third DCI, the transmission for the first HARQ process or the transmission of the first HARQ process ID received by the terminal device is: DCI dynamically scheduled transmission scrambled by other G-RNTI (i.e. Dynamic scheduling via G-RNTI), and the NDI corresponding to the transmission is the same as the first NDI (for example, the NDI is not flipped). It can be understood that in this case, if the terminal device receives the third DCI or the second DCI, the terminal device will regard the transmission corresponding to the third DCI or the second DCI as having not received the first DCI. Retransmission of other G-RNTI related multicast MTCH related transmissions.
  • the first condition may also include condition D or condition E.
  • the first condition may also include condition D or condition E.
  • Condition D includes: before the second DCI or the third DCI, the transmission for the first HARQ process or the transmission of the first HARQ process ID received by the terminal device includes any of the following:
  • DCI dynamic scheduling transmission scrambled by CS-RNTI i.e. Dynamic scheduling via CS-RNTI
  • the NDI corresponding to the transmission is the same as the first NDI (for example, the NDI is not flipped).
  • the terminal equipment if the terminal equipment receives the third DCI or the second DCI in one or more of the above situations (1) or (2), the terminal equipment will not receive the first DCI.
  • the device will treat the transmission corresponding to the third DCI or the second DCI as a unicast retransmission.
  • Condition E includes: before the second DCI or the third DCI, the transmission for the first HARQ process or the transmission of the first HARQ process ID received by the terminal device is: transmitted in a multicast configuration transmission mode (ie, MBS SPS); for example, Transmission corresponding to data transmitted on other multicast configuration resources (or multicast configuration resources associated with other G-RNTI or G-CS-RNTI or multicast services).
  • MBS SPS multicast configuration transmission mode
  • the terminal device will regard the transmission corresponding to the third DCI or the second DCI as having not received the first DCI. Retransmission of other G-RNTI or G-CS-RNTI related multicast MTCH related transmissions.
  • condition A or condition B or condition C or condition D or condition E corresponds and the terminal device receives the third DCI or the second DCI
  • the terminal device will not receive the first DCI.
  • the transmission corresponding to the third DCI or the second DCI will be regarded as a unicast transmission or other multicast-related multicast MTCH-related transmission, and the inactivation timer corresponding to the DRX associated with the multicast will not be started or restarted. Because the multicast-associated DRX is not in the activation time, other DCI transmitted through multicast cannot be received. Therefore, the DRX of the terminal device controlling multicast is in the activation time, so that the terminal device can subsequently receive other DCI transmitted through multicast, thereby improving communication reliability and reducing communication delay.
  • the terminal device has not received the first DCI may include/replace with: condition A or condition B or condition C or condition D or condition E.
  • condition A or condition B or condition C or condition D or condition E corresponds
  • the first data includes the first LCID
  • the terminal device can determine that the terminal device has not received the first DCI.
  • the terminal device stops the first timer or shortens the remaining running time of the first timer.
  • the first timer is associated with the first DRX.
  • the first DRX may be used to control monitoring of terminal device-specific control information.
  • the first DRX can also be used to control monitoring of control information that is not specific to the terminal device, which is not limited by this application.
  • the first DRX can be used to control monitoring of control information for any one or more of the following RNTIs: C-RNTI, cancellation indication RNTI (CI-RNTI), configuration scheduling RNTI (configured scheduling RNTI, CS) -RNTI), interrupt RNTI (interruption RNTI, INT-RNTI), slot format indication RNTI (slot format indication RNTI, SFI-RNTI), semi-static channel state information (channel state information, CSI) RNTI (semi-persistent CSI RNTI , SP-CSI-RNTI), transmission power control-physical uplink control channel-RNTI (transmit power control-PUCCH-RNTI, TPC-PUCCH-RNTI), transmission power control-physical uplink shared channel-RNTI (transmit power control-PUSCH -RNTI, TPC-PUSCH-RNTI), transmission power control-sounding reference signal-RNTI (TPC-SRS-RNTI), acquisition indicator (acquisition indicator, AI)-RNTI, side Sidelink RNTI (side CI
  • the first DRX may be unicast DRX, or a DRX group (for example, a DRX group).
  • the activation time of the first DRX may include any one or more of the following: the running time of the duration timer corresponding to unicast (for example, drx-onDurationTimer); the inactivation timer corresponding to unicast (for example, drx-InactivityTimer); or, the running time of the retransmission timer corresponding to unicast.
  • the retransmission timer corresponding to unicast may include any one or more of the following: downlink retransmission timer (for example, drx-RetransmissionTimerDL), uplink retransmission timer (for example, drx-RetransmissionTimerUL), or, Sidelink retransmission timer (e.g., drx-RetransmissionTimerSL).
  • downlink retransmission timer for example, drx-RetransmissionTimerDL
  • uplink retransmission timer for example, drx-RetransmissionTimerUL
  • Sidelink retransmission timer e.g., drx-RetransmissionTimerSL
  • the terminal device monitors control information specific to the terminal device.
  • the duration timer/duration timer corresponding to unicast is used to indicate the duration of waiting for the terminal device to receive control information (eg, DCI) after waking up.
  • control information eg, DCI
  • the inactivation timer/inactivation timer corresponding to unicast is used to indicate a period of time after the newly transmitted control information or newly transmitted data is scheduled.
  • the retransmission timer/retransmission timer corresponding to unicast is used to indicate the length of time for the terminal device to receive retransmission (for example, retransmission of DCI, retransmission of data, retransmission of resources).
  • the downlink retransmission timer/downlink retransmission timer corresponding to unicast is used to indicate the length of time for the terminal device to receive downlink retransmission (for example, retransmission of DCI, retransmission of data, retransmission of resources).
  • the uplink retransmission timer/uplink retransmission timer corresponding to unicast is used to indicate the length of time for the terminal device to receive uplink retransmission (for example, retransmission of DCI, retransmission of data, retransmission of resources).
  • the sidelink retransmission timer/sidelink retransmission timer corresponding to unicast is used to instruct the terminal device to receive sidelink retransmission (for example, retransmission of DCI, retransmission of data, retransmission of resources) duration.
  • sidelink retransmission for example, retransmission of DCI, retransmission of data, retransmission of resources
  • the activation time of the first DRX may include any one or more of the following: the running time of the duration timer (for example, drx-onDurationTimer) corresponding to the DRX group; the inactivation timer corresponding to the DRX group (for example, drx-InactivityTimer); or, the running time of the retransmission timer corresponding to the DRX group.
  • the running time of the duration timer for example, drx-onDurationTimer
  • the inactivation timer corresponding to the DRX group for example, drx-InactivityTimer
  • the running time of the retransmission timer corresponding to the DRX group for example, the running time of the retransmission timer corresponding to the DRX group.
  • the activation time of the first DRX may also include other times, which is not limited by this application.
  • the content of the activation time of the first DRX may refer to 3GPP TS 38.321: "NR; Medium Access Control (MAC); Protocol specification”.
  • the first timer is an inactivation timer corresponding to unicast (for example, drx-InactivityTimer).
  • the first timer is an inactivation timer corresponding to the DRX associated with the unicast or an inactivation timer corresponding to the first DRX.
  • the first timer is associated with the DRX group corresponding to the first cell.
  • the first cell is associated with any one or more of the first data, the first DCI, the second DCI, the third DCI, the first multicast service, the first G-RNTI, and the first G-CS-RNTI.
  • the terminal device receives the first data, the second DCI, and the third DCI in the first cell.
  • the first timer is the drx-InactivityTimer associated with the DRX group corresponding to the first cell.
  • the remaining running time of the first timer may also be called the running time of the first timer.
  • the terminal device stops the first timer if the first condition is met.
  • the first condition may also include one or more of the following:
  • Condition 4 The terminal device receives the second DCI or the third DCI and the first timer is not running;
  • Condition 5 After the terminal device receives the second DCI or the third DCI, the first timer does not start or restart;
  • Condition 6 The operation of the first timer is caused by the second DCI or the third DCI; or, the operation of the first timer is caused by the second DCI or the third DCI starting or restarting the first timer; or, The terminal device starts or restarts the first timer due to the second DCI or the third DCI;
  • Condition 9 The configured duration of the first timer is greater than the third duration.
  • the configured duration of the first timer may be configured by the network device for the terminal device.
  • the configured duration of the first timer may also be called the preset duration of the first timer.
  • the third duration includes any of the following: from the time point T1 when the terminal device starts or restarts the first timer due to the reception of the second DCI or the third DCI to the duration when the terminal device successfully decodes the first data; from The time period from the time point T1 when the terminal equipment starts or restarts the first timer due to the reception of the second DCI or the third DCI to the terminal equipment determining that the first condition is met; from the time point T1 when the terminal equipment starts due to the reception of the second DCI or the third DCI.
  • the terminal device will/want to stop the first timer or shorten the remaining running time of the first timer from the time point T1 of restarting the first timer; (T2-T1).
  • “the terminal device received the second DCI or the third DCI and the first timer did not run” can include any one or more of the following:
  • the first timer does not run after the first time period or the first moment after the terminal device receives the second DCI or the third DCI;
  • the first timer does not run; or when the terminal equipment starts or restarts the first timer due to the second DCI or third DCI, the first timer does not run.
  • "due to the second DCI or the third DCI” may include: due to the reception of the second DCI or the third DCI.
  • the first moment may be the a-th symbol/slot/subframe/frame, etc.
  • a is an integer greater than or equal to 0.
  • a is 1.
  • the value of the first moment/the value of a/the value of the first duration may be configured or pre-configured by the network device or specified by the protocol, which is not limited by this application.
  • the terminal device starts or restarts the first timer after receiving the first symbol after the second DCI or the third DCI.
  • the first timer has not been started or restarted, which may include: the first timer has not been started or restarted.
  • “the first timer has not been started or restarted” does not limit whether the first timer is running.
  • the first timer is not started or restarted due to other transmissions (for example, unicast new transmission); after the terminal equipment starts or restarts the first timer, the first timer is not started or restarted due to other transmissions (for example, unicast initial transmission); the terminal equipment After the first timer is started or restarted due to the second DCI or the third DCI, the first timer is not started or restarted due to other transmissions (for example, unicast initial transmission).
  • other transmissions for example, unicast initial transmission
  • the terminal equipment After the first timer is started or restarted due to the second DCI or the third DCI, the first timer is not started or restarted due to other transmissions (for example, unicast initial transmission).
  • the terminal device received the second DCI or the third DCI, the first timer was not started or restarted may include one or more of the following:
  • the terminal device After the terminal device receives the second DCI or the third DCI, when the terminal device successfully decodes the first data, or when the terminal device determines that the first condition is met, or when the terminal device will/want to stop the first timing timer, the first timer has not been started or restarted due to other transmissions (for example, unicast initial transmission);
  • the terminal device After the terminal device starts or restarts the first timer, when the terminal device successfully decodes the first data, or when the terminal device determines that the first condition is met, or when the terminal device will/want to stop the first timer , the first timer is not started or restarted due to other transmissions (e.g., unicast initial transmission);
  • the terminal device After the terminal device starts or restarts the first timer due to the second DCI or the third DCI, when the terminal device successfully decodes the first data, or when the terminal device determines that the first condition is met, or when the terminal device will / When you want to stop the first timer, the first timer is not started or restarted due to other transmissions (for example, unicast initial transmission).
  • the terminal device does not receive the first DCI transmitted through multicast, and the first timer fails when the terminal device receives the second DCI or the third DCI. Run, the terminal device stops the first timer.
  • the terminal device does not receive the first DCI transmitted through multicast, and after the terminal device receives the second DCI or the third DCI, the first timing The server has not been started or restarted, and the terminal device stops the first timer.
  • the first data includes the first LCID
  • the terminal device does not receive the first DCI transmitted through multicast
  • the first timer fails when the terminal device receives the second DCI or the third DCI. running
  • the first timer has not been started or restarted after the terminal device receives the second DCI or the third DCI
  • the terminal device stops the first timer to reduce the power consumption of the terminal device.
  • the terminal equipment determines that the first data is multicast MTCH related data, and the first timer is not running when the terminal equipment receives the second DCI or the third DCI, and the terminal equipment receives the second DCI or the third DCI after the first timer is running. A timer has not been started or restarted due to other transfers.
  • the terminal device When the terminal device receives the second DCI or the third DCI, it may misjudge the transmission corresponding to the second DCI or the third DCI as a unicast initial transmission. If the terminal device starts or restarts the first timer, then the operation of the first timer This is caused by the terminal device misjudging the transmission corresponding to the second DCI or the third DCI as an initial unicast transmission. In this case, the network device will not start or restart the first DCI due to the second DCI or the third DCI. Timer, the operation of the first timer of the terminal device will cause power consumption, so the terminal device needs to stop the first timer.
  • the fact that the terminal device has not received the first DCI may include/replace with: any one or more of condition 4, condition 5, and condition 6.
  • condition 4, condition 5, and condition 6 may include/replace with: any one or more of condition 4, condition 5, and condition 6.
  • condition 6 the first data includes the first LCID, and the terminal device can determine that the terminal device has not received the first DCI.
  • the terminal device if the first condition is met, the terminal device shortens the remaining running time of the first timer.
  • the first condition may also include one or more of the following:
  • Condition 7 The terminal device receives the second DCI or the third DCI and the first timer runs;
  • Condition 5 After the terminal device receives the second DCI or the third DCI, the first timer does not start or restart;
  • Condition 6 The operation of the first timer is caused by the second DCI or the third DCI; or, the operation of the first timer is caused by the second DCI or the third DCI starting or restarting the first timer; or, The terminal device starts or restarts the first timer due to the second DCI or the third DCI;
  • Condition 9 The configured duration of the first timer is greater than the third duration.
  • the first timer running may include: the first timer is running.
  • the terminal device receives the second DCI or the third DCI, and the first timer runs” may include any one or more of the following:
  • the first timer runs after the first time period or the first moment after the terminal device receives the second DCI or the third DCI;
  • the first timer runs; or when the terminal device starts or restarts the first timer due to the second DCI or third DCI, the first timer runs.
  • the first timer runs, indicating that before the terminal device receives the second DCI or the third DCI, because the terminal device receives other DCI transmitted through unicast, The first timer is started or restarted, so that the first timer is running.
  • the terminal device determines that the first data is multicast MTCH related data, and the first timer runs when the terminal device receives the second DCI or the third DCI, and the first timer runs after the terminal device receives the second DCI or the third DCI.
  • the timer has not been started or restarted due to other transfers.
  • the terminal device may misjudge the transmission corresponding to the second DCI or the third DCI as a unicast initial transmission.
  • the terminal device The first timer is started or restarted, which will extend the running time of the first timer of the terminal device. In this case, the network device will not start or restart the first timer due to the second DCI or the third DCI, so the terminal device needs to shorten the remaining running time of the first timer, thereby reducing the power consumption of the terminal device.
  • the first timer is not started or restarted, indicating that after the terminal device receives the second DCI or the third DCI, it does not receive other DCI transmitted through unicast. , thereby not starting or restarting the first timer. Therefore, the starting or restarting of the first timer is due to the second DCI or the third DCI.
  • the second DCI or the third DCI is actually a DCI that schedules data retransmission through multicast, and the first timer should not be started or restarted. Therefore, the terminal device needs to shorten the remaining running time of the first timer to reduce the power consumption of the terminal device.
  • the remaining running time of the first timer shortened by the terminal device is determined based on any one or more of the following: the terminal device starts or restarts the first timer due to the reception of the second DCI or the third DCI.
  • the time point T1 the remaining running time of the first timer STL at T1
  • the remaining running time of the first timer shortened by the terminal equipment includes: the terminal equipment shortens the remaining running time of the first timer to STL-(T2-T1).
  • T2-T1 is the time point T2 when the terminal equipment shortens the remaining running time of the first timer because the first condition is met, and the time point T2 when the terminal equipment starts or restarts the first timer because the terminal equipment receives the second DCI or the third DCI.
  • the remaining running time of the first timer shortened by the terminal device includes: the terminal device shortens the remaining running time of the first timer to 0, or the terminal device stops the first timer. device.
  • the terminal device starts or restarts the first timer at time t0 due to receiving the fourth DCI transmitted through unicast.
  • the preset timer of the first timer is 10s.
  • the first timer is started or restarted at the moment due to receiving the second DCI or the third DCI (for example, the terminal device misjudges the transmission corresponding to the second DCI or the third DCI as a new unicast transmission).
  • Time t0 is less than time t1, and at time t1, the remaining running time of the first timer is 6 seconds.
  • the terminal device starts or restarts the first timer at time t1
  • the remaining running time of the first timer will be extended from 6s to 10s, which will bring excess power consumption to the terminal device.
  • the terminal device determines that the first condition is met, the interval between t2 and t1 is 2s, and at time t2, the remaining running time of the first timer is 8s.
  • the terminal device can shorten the remaining running time of the first timer from 8s to 4s.
  • the terminal device can stop the first timer, or the terminal device can stop the remaining running time of the first timer. The duration is shortened to 0s.
  • the fact that the terminal device has not received the first DCI may include/replace with: any one or more of condition 7, condition 5, and condition 6.
  • condition 7, condition 5 and condition 6 correspond, the first data includes the first LCID, and the terminal device may determine that the terminal device has not received the first LCID. DCI.
  • the first condition may also include condition A.
  • Condition A is as described above and will not be described again.
  • the terminal device when the terminal device corresponds to condition A and the terminal device receives the third DCI or the second DCI, the terminal device will not receive the first DCI, so the terminal device will respond to the third DCI or the second DCI.
  • the transmission is regarded as a new unicast transmission, so the first timer will be started or restarted, but the network device will not start or restart the first timer due to the second DCI or third DCI, and the activation of unicast DRX of the terminal device
  • the time is not aligned with the network device, and the activation time of the unicast DRX of the terminal device will be longer than that of the network device, so unnecessary power consumption will be brought to the terminal device. Therefore, under the first condition, the terminal device can stop the first timer or shorten the remaining running time of the first timer to reduce the power consumption of the terminal device.
  • the terminal device has not received the first DCI may include/replace with: condition A.
  • the terminal device can determine that the terminal device has not received the first DCI.
  • the terminal device stops the first timer or shortens the remaining running time of the first timer, which is beneficial to energy saving of the terminal device and can also prevent the terminal device from unnecessary reporting of CSI and SRS.
  • FIG. 10 is a schematic flowchart of the communication method 200.
  • the communication method 200 is from the terminal Explained from the perspective of the equipment side.
  • the communication method 200 includes but is not limited to the following steps:
  • the terminal device receives the fifth DCI and/or the second data, or the terminal device receives the second data on the first resource. For example, correspondingly, the network device sends the fifth DCI and/or the second data transmitted in a unicast manner, or the network device sends the second data on the first resource.
  • the fifth DCI is transmitted via unicast.
  • the fifth DCI is transmitted in a unicast manner and may include/understand as: the first DCI scrambled by the second RNTI, or the fifth DCI associated with the second RNTI.
  • the fifth DCI is used to schedule the second data or the second data transmitted in unicast mode.
  • the fifth DCI and/or the second data are associated with the first HARQ process.
  • the first resource is/includes a resource/configuration resource associated with unicast.
  • the first resource is/includes a resource/configuration resource associated with unicast. It can be understood that the first resource is an SPS resource corresponding to unicast.
  • the first resource and/or the second data are associated with the second RNTI.
  • the second data is associated with the first HARQ process.
  • the second data includes/is the first MAC PDU.
  • the second condition is met, and the terminal device controls the DRX associated with the multicast to be in the activation time.
  • the second condition includes: the second data includes the second LCID.
  • the second LCID is the identification of DTCH.
  • the first LCID is associated with the first multicast service.
  • the first multicast service is associated with the first RNTI.
  • the multicast-associated DRX is associated with the first multicast service and/or the first RNTI.
  • the terminal device may subsequently send data transmitted through multicast.
  • the terminal device can control the DRX associated with the multicast to be at the activation time to further receive possible subsequent DCI and/or data, which is beneficial to improving the reliability of multicast data transmission and reducing Transmission delay.
  • the communication device may include a hardware structure and/or a software module to implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether one of the above functions is performed as a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
  • an embodiment of the present application provides a communication device 1100.
  • the communication device 1100 is a component of a terminal device (eg, integrated circuit, chip, etc.).
  • the communication device 1100 may also be other communication units, used to implement the methods in the method embodiments of the present application.
  • the communication device 1100 may include: a communication unit 1101 and a processing unit 1102.
  • a storage unit 1103 may also be included.
  • one or more units as shown in Figure 11 may be implemented by one or more processors, or by one or more processors and memories; or by one or more processors and a transceiver; or may be implemented by one or more processors, memories, and transceivers, which are not limited in the embodiments of the present application.
  • the processor, memory, and transceiver can be set separately or integrated.
  • the communication device 1100 has the function of implementing the terminal device described in the embodiment of this application.
  • the communication device 1100 includes modules or units or means (means) corresponding to the terminal equipment executing the steps involved in the terminal equipment described in the embodiments of this application.
  • the functions or units are Elements or means can be implemented by software, or by hardware, or by hardware executing corresponding software implementation, or by a combination of software and hardware. For details, reference may be made to the corresponding descriptions in the foregoing corresponding method embodiments.
  • a communication device 1100 may include: a processing unit 1102 and a communication unit 1101; the communication unit 1101 is used to transmit and receive data/signaling;
  • the processing unit 1102 is used to satisfy the first condition and execute one or more of the following:
  • the first condition includes: the first data includes the first logical channel identifier LCID, and the first downlink control information DCI is not received;
  • the first data is scheduled by the second DCI, the second DCI is transmitted through unicast, the first LCID is the identifier of the first multicast broadcast service channel MTCH, and the first DCI is transmitted through Transmitted in a multicast manner, the first DCI is used to schedule the first data.
  • the processing unit 1102 controls the multicast associated discontinuous reception DRX to be in the activation time, specifically for: starting or restarting one or more of the following timers: the second timer, the third timer timer, fourth timer;
  • the second timer is an inactivation timer corresponding to the DRX associated with the multicast
  • the third timer is a duration timer corresponding to the DRX associated with the multicast
  • the fourth timer is an inactivation timer corresponding to the DRX associated with the multicast.
  • the first condition further includes any one or more of the following: the multicast-associated discontinuous reception DRX is at the activation time. DRX is not in the activation time; after receiving the second DCI, the second timer is not started or restarted; after receiving the second DCI, the second timer is not started or restarted, and the third DCI is used When scheduling the first data, the third DCI precedes the second DCI.
  • the first condition further includes: the second DCI or the third DCI is received, and the first timer is not running. ; and/or, after receiving the second DCI or the third DCI, the first timer is not started or restarted.
  • the first condition further includes: receiving the second DCI or the third DCI, the first The timer is running; and/or, after receiving the second DCI or the third DCI, the first timer is not started or restarted.
  • the second DCI is transmitted in a unicast manner, including: the second DCI is scrambled by the cell-radio network temporary identifier C-RNTI.
  • the first DCI is transmitted in a multicast manner, including: the first DCI is scrambled by a first RNTI; wherein the first RNTI is used for one or more of the following: Item: used for multicast, used for scheduling multicast dynamic resources, used for scheduling retransmission resources of multicast dynamic resources.
  • the first LCID is associated with a first RNTI
  • the multicast-associated DRX is associated with a first RNTI; wherein the first RNTI is used for the following One or more items: used for multicast, used for scheduling multicast dynamic resources, and used for scheduling retransmission resources of multicast dynamic resources.
  • FIG. 12 is a schematic structural diagram of the communication device 1200.
  • the communication device 1200 may be a terminal device, or may be a chip, chip system, or processor that supports the terminal device to implement the above method.
  • the device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.
  • the communication device 1200 may include one or more processors 1201.
  • the processor 1201 may be a general-purpose processor or a special-purpose processor. For example, it can be a baseband processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or a central processing unit (CPU).
  • the baseband processor can be used to process communication protocols and communication data
  • the central processor can be used to process communication devices (such as base stations, baseband chips, terminals, terminal chips, distributed units (DU) or centralized units (centralized units)). unit, CU), etc.) to control, execute software programs, and process data of software programs.
  • DU distributed units
  • centralized units centralized units
  • the communication device 1200 may include one or more memories 1202, on which instructions 1204 may be stored, and the instructions may be executed on the processor 1201, causing the communication device 1200 to perform the above method. Methods described in the Examples.
  • the memory 1202 may also store data.
  • the processor 1201 and the memory 1202 can be provided separately or integrated together.
  • the memory 1202 may include, but is not limited to, non-volatile memories such as hard disk drive (HDD) or solid-state drive (SSD), random access memory (Random Access Memory, RAM), erasable and programmable memory.
  • non-volatile memories such as hard disk drive (HDD) or solid-state drive (SSD), random access memory (Random Access Memory, RAM), erasable and programmable memory.
  • Read-only memory Erasable Programmable ROM, EPROM
  • ROM or portable read-only memory Compact Disc Read-Only Memory, CD-ROM
  • the communication device 1200 may also include a transceiver 1205 and an antenna 1206.
  • the transceiver 1205 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions.
  • the transceiver 1205 may include a receiver and a transmitter.
  • the receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function;
  • the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.
  • the communication device 1200 is a terminal device: the processor 1201 is used to execute S103 in the communication method 100 and S202 in the communication method 200; the transceiver 1205 is used to execute S101 and S102 in the communication method 100 and the communication method. S201 in 200.
  • the processor 1201 may include a transceiver for implementing receiving and transmitting functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.
  • the processor 1201 can store instructions 1203, and the instructions 1203 are run on the processor 1201, which can cause the communication device 1200 to execute the method described in the above method embodiment.
  • the instructions 1203 may be fixed in the processor 1201, in which case the processor 1201 may be implemented by hardware.
  • the communication device 1200 may include a circuit, and the circuit may implement the sending or receiving or communication functions in the foregoing method embodiments.
  • the processor and transceiver described in the embodiments of this application can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed signal ICs, application specific integrated circuits (application specific integrated circuits). circuit (ASIC), printed circuit board (PCB), electronic equipment, etc.
  • the processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (Bipolar Junction Transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS n-type metal oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be the first device, but the scope of the communication device described in the embodiments of the present application is not limited thereto, and the structure of the communication device may not be limited by FIG. 12 .
  • the communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • the IC collection may also include a storage component for storing data and instructions;
  • ASIC such as modem (modulator)
  • the communication device may be a chip or a chip system
  • the chip 1300 shown in FIG. 13 includes a processor 1301 and an interface 1302.
  • the number of processors 1301 may be one or more, and the number of interfaces 1302 may be multiple.
  • the processor 1301 may be a logic circuit, and the interface 1302 may be an input-output interface, an input interface or an output interface.
  • the chip 1300 may also include memory 1303 .
  • the processor 1301 is used to satisfy the first condition and execute one or more of the following:
  • the first condition includes: the first data includes the first logical channel identifier LCID, and the first downlink control information DCI is not received;
  • the first data is scheduled by the second DCI, the second DCI is transmitted through unicast, the first LCID is the identifier of the first multicast broadcast service channel MTCH, and the first DCI is transmitted through Transmitted in a multicast manner, the first DCI is used to schedule the first data.
  • the communication device 1200 and the chip 1300 can also perform the implementation described above for the communication device 1100.
  • the various illustrative logical blocks and steps listed in the embodiments of this application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented in hardware or software depends on the specific application and overall system design requirements. Those skilled in the art can use various methods to achieve the described functions for each specific application. However, this implementation should not be understood as exceeding the protection scope of the embodiments of this application.
  • This application also provides a computer-readable storage medium for storing computer software instructions. When the instructions are executed by a communication device, the functions of any of the above method embodiments are implemented.
  • This application also provides a computer program product for storing computer software instructions. When the instructions are executed by a communication device, the functions of any of the above method embodiments are implemented.
  • This application also provides a computer program that, when run on a computer, implements the functions of any of the above method embodiments.
  • This application also provides a communication system, which includes one or more network devices and one or more terminal devices.
  • the system may also include other devices that interact with network devices and terminal devices in the solution provided by this application.
  • the above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated.
  • the available media may be magnetic media (eg, floppy disk, hard disk, tape), optical media (eg, high-density digital video disc (DVD)), or semiconductor media (eg, SSD), etc.

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Abstract

The present application provides a communication method and apparatus. The method is applied to a terminal device, and comprises: when a first condition is satisfied, executing one or more of the following: controlling multicast-associated discontinuous reception (DRX) to be in an active time; and stopping a first timer or shortening the remaining running duration of the first timer, the first timer being an inactivity timer corresponding to unicast-associated DRX. The first condition comprises: first data comprising a first logical channel identifier (LCID), and first downlink control information (DCI) not being received. The first data is scheduled by second DCI, and the second DCI is transmitted in unicast mode. The first LCID is an identifier of a first multicast and broadcast service traffic channel (MTCH), the first DCI is transmitted in multicast mode, and the first DCI is used to schedule the first data. This configuration enables a terminal device to receive DCI transmitted in multicast mode, thereby improving communication reliability, reducing communication delays, and/or reducing the power consumption of the terminal device.

Description

一种通信方法及装置A communication method and device 技术领域Technical field
本申请涉及通信技术领域，尤其涉及一种通信方法及装置。The present application relates to the field of communication technology, and in particular, to a communication method and device.
背景技术Background technique
新空口(new radio，NR)***中的组播和广播服务(multicast and broadcast services，MBS)支持组播和广播。组播可支持点到点(point-to-point，PTP)传输和点到多点(point-to-multipoint，PTM)传输。另外，组播的PTM传输支持混合自动重传请求(hybrid automatic repeat request，HARQ)反馈机制。网络设备采用PTM传输方式发送初传下行控制信息(downlink control information，DCI)和/或数据，若终端设备接收到该DCI但没有成功解码该DCI调度的数据，终端设备可能向网络设备反馈否认应答(Negative-Acknowledgment，NACK)。网络设备可采用PTM传输方式或PTP传输方式进行HARQ重传。Multicast and broadcast services (MBS) in new radio (NR) systems support multicast and broadcast. Multicast can support point-to-point (PTP) transmission and point-to-multipoint (PTM) transmission. In addition, multicast PTM transmission supports hybrid automatic repeat request (HARQ) feedback mechanism. The network device uses the PTM transmission method to send the initial downlink control information (DCI) and/or data. If the terminal device receives the DCI but fails to successfully decode the DCI scheduled data, the terminal device may feedback a denial response to the network device. (Negative-Acknowledgment, NACK). Network equipment can use PTM transmission mode or PTP transmission mode for HARQ retransmission.
针对一个组播的传输，如果终端设备未接收到通过PTM传输方式发送的DCI，且网络设备采用PTP传输方式向该终端设备执行HARQ重传，终端设备可能会将该次通过PTP传输方式发送的DCI和/数据误判为单播传输或其他组播的传输。For a multicast transmission, if the terminal device does not receive the DCI sent through the PTM transmission mode, and the network device uses the PTP transmission mode to perform HARQ retransmission to the terminal device, the terminal device may transmit the DCI sent through the PTP transmission mode. DCI and/or data are misjudged as unicast transmission or other multicast transmission.
该情况下，终端设备如何处理为目前亟待研究的问题之一。In this case, how to deal with the terminal equipment is one of the issues that needs to be studied urgently.
发明内容Contents of the invention
本申请实施例提供了一种通信方法及装置，有利于终端设备接收通过组播方式传输的DCI，提高通信可靠性，降低通信时延，和/或，减少终端设备的功耗。Embodiments of the present application provide a communication method and device, which facilitates terminal equipment to receive DCI transmitted through multicast, improves communication reliability, reduces communication delay, and/or reduces power consumption of terminal equipment.
第一方面，本申请实施例提供一种通信方法，可应用于终端设备(例如终端设备的设备或芯片上)。该方法包括：满足第一条件，执行以下一项或多项：控制组播关联的非连续接收DRX处于激活时间；停止第一定时器或缩短第一定时器的剩余运行时长。In the first aspect, embodiments of the present application provide a communication method that can be applied to a terminal device (such as a device or chip of the terminal device). The method includes: meeting the first condition and performing one or more of the following: controlling the discontinuous reception DRX associated with the multicast to be active time; stopping the first timer or shortening the remaining running time of the first timer.
其中，第一定时器为与单播关联的DRX对应的非激活定时器，即第一定时器为drx-InactivityTimer。第一条件包括：第一数据包括第一逻辑信道标识LCID，且未接收到第一下行控制信息DCI。第一数据是第二DCI调度的，第二DCI是通过单播方式传输的。第一LCID为第一组组播广播服务业务信道MTCH的标识，第一DCI是通过组播方式传输的，第一DCI用于调度所述第一数据。The first timer is an inactivation timer corresponding to the DRX associated with unicast, that is, the first timer is drx-InactivityTimer. The first condition includes: the first data includes the first logical channel identifier LCID, and the first downlink control information DCI is not received. The first data is scheduled by the second DCI, and the second DCI is transmitted in unicast mode. The first LCID is the identifier of the first group multicast broadcast service channel MTCH, the first DCI is transmitted in a multicast manner, and the first DCI is used to schedule the first data.
可见，本申请实施例中，终端设备通过满足第一条件，确定第一数据是组播的重传数据。从而，调度第一数据的且通过单播方式传输的第二DCI是调度组播的重传，进而终端设备可执行上述一项或多项。It can be seen that in the embodiment of the present application, the terminal device determines that the first data is multicast retransmission data by satisfying the first condition. Therefore, the second DCI that schedules the first data and is transmitted in a unicast manner schedules multicast retransmission, and the terminal device can perform one or more of the above.
满足第一条件，终端设备执行控制组播关联的DRX处于激活时间，可避免由于未接收到通过组播方式传输的第一DCI，而造成的未启动或重启组播关联的DRX对应的非激活定时器的情况。从而使得与组播关联的DRX未处于激活时间，后续终端设备无法接收通过组播方式传输的DCI。因此，该方式有利于终端设备接收通过组播方式传输的DCI，提高通信可靠性，降低通信时延。When the first condition is met, the terminal device executes the control that the DRX associated with the multicast is in the activation time, which can avoid the inactivation of the DRX associated with the multicast due to not being started or restarted due to not receiving the first DCI transmitted through multicast. Timer situation. As a result, the DRX associated with multicast is not in the activation time, and subsequent terminal devices cannot receive DCI transmitted through multicast. Therefore, this method is conducive to terminal equipment receiving DCI transmitted through multicast, improving communication reliability and reducing communication delay.
满足第一条件，终端设备执行停止第一定时器或缩短第一定时器的剩余运行时长，可避免将本次通过单播方式进行组播重传的DCI(第二DCI)，误判为是本次通过单播方式进行初传的DCI时，因启动或重启第一定时器而带来的多余功耗，即可节省终端设备的功耗或耗电。When the first condition is met, the terminal device stops the first timer or shortens the remaining running time of the first timer, which can avoid misjudgment of the DCI (second DCI) for multicast retransmission through unicast mode. When the DCI is initially transmitted through unicast this time, the excess power consumption caused by starting or restarting the first timer can save the power consumption or power consumption of the terminal device.
满足第一条件，终端设备执行控制组播关联的DRX处于激活时间，以及停止第一定时器或缩短第一定时器的剩余运行时长，可避免未接收到通过组播方式传输的第一DCI，而后续无法接收通过组播方式传输的DCI的情况，即有利于终端设备接收通过组播方式传输的DCI，提高通信可靠性，降低通信时延，以及将通过单播方式传输的第二DCI误判为通过单播方式初次传输的DCI时，因启动或重启第一定时器而带来的多余功耗，即可节省终端设备的功耗或耗电。When the first condition is met, the terminal device executes the control multicast associated DRX to be in the activation time, and stops the first timer or shortens the remaining running time of the first timer to avoid not receiving the first DCI transmitted through multicast mode. The subsequent failure to receive DCI transmitted through multicast means that it is beneficial for the terminal device to receive the DCI transmitted through multicast, improve communication reliability, reduce communication delay, and avoid errors in the second DCI transmitted through unicast. When DCI is determined to be transmitted for the first time in unicast mode, the excess power consumption caused by starting or restarting the first timer can save the power consumption or power consumption of the terminal device.
一种可选的实施方式中，控制组播关联的非连续接收DRX处于激活时间，包括：启动或重启以下定时器中的一项或多项：第二定时器、第三定时器、第四定时器。In an optional implementation, controlling the multicast associated discontinuous reception DRX to be in the activation time includes: starting or restarting one or more of the following timers: the second timer, the third timer, the fourth timer timer.
其中，第二定时器为与组播关联的DRX对应的非激活定时器，即第二定时器为drx-InactivityTimerPTM。第三定时器为与组播关联的DRX对应的持续时间定时器，即第二定时器为 drx-onDurationTimerPTM。第四定时器为与组播关联的DRX对应的重传定时器，且是与组播关联的DRX对应的下行重传定时器，即第四定时器为drx-RetransmissionTimerDL-PTM。The second timer is an inactivation timer corresponding to the DRX associated with the multicast, that is, the second timer is drx-InactivityTimerPTM. The third timer is the duration timer corresponding to the DRX associated with the multicast, that is, the second timer is drx-onDurationTimerPTM. The fourth timer is a retransmission timer corresponding to the DRX associated with the multicast, and is a downlink retransmission timer corresponding to the DRX associated with the multicast, that is, the fourth timer is drx-RetransmissionTimerDL-PTM.
可见，终端设备可通过启动或重启第二定时器、第三定时器和第四定时器中的一项或多项，使得组播关联的DRX处于激活时间。从而，即使终端设备未接收到本次通过组播方式初传的DCI(即第一DCI)，后续终端设备仍可接收通过组播方式传输的其他DCI。It can be seen that the terminal device can start or restart one or more of the second timer, the third timer and the fourth timer so that the DRX associated with the multicast is at the activation time. Therefore, even if the terminal device does not receive the DCI initially transmitted through multicast this time (ie, the first DCI), subsequent terminal devices can still receive other DCI transmitted through multicast.
一种可选的实施方式中，如果执行控制组播关联的非连续接收DRX处于激活时间，第一条件还包括以下任一项或多项：组播关联的DRX未处于激活时间；接收到第二DCI后，第二定时器未启动或重启；或，接收到第三DCI后，第二定时器未启动或重启；第三DCI用于调度第一数据，第三DCI在第二DCI之前。In an optional implementation, if the discontinuous reception DRX of the control multicast association is in the activation time, the first condition also includes any one or more of the following: the DRX of the multicast association is not in the activation time; the DRX of the multicast association is not in the activation time; After the second DCI, the second timer is not started or restarted; or after receiving the third DCI, the second timer is not started or restarted; the third DCI is used to schedule the first data, and the third DCI is before the second DCI.
可见，第一数据包括第一LCID，以及未接收到通过组播方式传输的第一DCI时，如果终端设备确定组播关联的DRX未处于激活时间，表明终端设备因未接收到通过组播方式传输的第一DCI，而未启动或重启与组播关联的DRX对应的非激活定时器，使得组播关联的DRX未处于激活时间。该情况下，为使得终端设备后续可接收通过组播方式传输的其他DCI，终端设备控制组播关联的DRX处于激活时间。It can be seen that the first data includes the first LCID, and when the first DCI transmitted through multicast is not received, if the terminal device determines that the DRX associated with the multicast is not in the activation time, it indicates that the terminal device has not received the first DCI through multicast. The first DCI is transmitted without starting or restarting the inactivation timer corresponding to the multicast-associated DRX, so that the multicast-associated DRX is not in the activation time. In this case, in order to enable the terminal device to subsequently receive other DCI transmitted through multicast, the terminal device controls the DRX associated with the multicast to be in the activation time.
一种可选的实施方式中，如果执行控制组播关联的非连续接收DRX处于激活时间，第一条件还包括：第二时长小于所述第二定时器的配置时长，所述第二时长为从所述终端设备接收所述第二DCI或所述第三DCI到所述终端设备成功解码所述第一数据的时长。In an optional implementation, if the discontinuous reception DRX that performs control multicast association is in the activation time, the first condition further includes: the second duration is less than the configured duration of the second timer, and the second duration is The duration from when the terminal device receives the second DCI or the third DCI to when the terminal device successfully decodes the first data.
可选的，如果终端设备接收到第二DCI后，第二定时器未启动或重启，表明终端设备接收到第二DCI后，未接收到其他通过组播进行初传的DCI，从而仍未启动或重启与组播关联的DRX对应的非激活定时器。因此，该情况下，终端设备也需控制与组播关联的DRX处于激活时间，以后续可接收通过组播方式传输的其他DCI。Optionally, if the second timer is not started or restarted after the terminal device receives the second DCI, it means that after the terminal device receives the second DCI, it does not receive other DCI initially transmitted through multicast, and thus it has not been started yet. Or restart the inactivation timer corresponding to the DRX associated with the multicast. Therefore, in this case, the terminal device also needs to control the activation time of the DRX associated with multicast, so that it can subsequently receive other DCI transmitted through multicast.
可选的，如果终端设备接收到第三DCI后，第二定时器未启动或重启，且该第三DCI是调度第一数据的且是终端设接收的第一个进行PTP重传的DCI，表明终端设备接收到第一个进行PTP重传的DCI后，未接收到通过组播进行初传的其他DCI，从而未启动或重启与组播关联的DRX对应的非激活定时器。因此，该情况下，为使得终端设备后续可接收通过组播方式传输的其他DCI，终端设备也需控制组播关联的DRX处于激活时间。Optionally, if the second timer is not started or restarted after the terminal device receives the third DCI, and the third DCI schedules the first data and is the first DCI received by the terminal device for PTP retransmission, This indicates that after the terminal device received the first DCI for PTP retransmission, it did not receive other DCI for initial transmission through multicast, so the inactivation timer corresponding to the DRX associated with multicast was not started or restarted. Therefore, in this case, in order for the terminal device to subsequently receive other DCI transmitted through multicast, the terminal device also needs to control the activation time of the DRX associated with the multicast.
可选的，终端设备执行控制组播关联的非连续接收DRX处于激活时间时，第一条件还包括上述三项中的多项，以使得终端设备后续可接收通过组播方式传输的其他DCI。Optionally, when the terminal device performs control multicast associated discontinuous reception DRX at the activation time, the first condition also includes multiple of the above three items, so that the terminal device can subsequently receive other DCI transmitted through multicast.
一种可选的实施方式中，如果执行停止第一定时器，第一条件还包括：接收到第二DCI或第三DCI，第一定时器未运行；和/或；接收到第二DCI或第三DCI后，第一定时器未启动或重启。In an optional implementation, if the first timer is stopped, the first condition also includes: the second DCI or the third DCI is received, and the first timer is not running; and/or; the second DCI or the third DCI is received. After the third DCI, the first timer is not started or restarted.
终端设备接收到第二DCI或第三DCI，第一定时器未运行时，表明终端在接收到第二DCI或第三DCI之前，未接收通过单播方式传输的DCI。终端设备接收到第二DCI或第三DCI后，第一定时器未启动或重启，表明终端设备接收到第二DCI或第三DCI后，未接收到其他通过单播方式传输的其他DCI。When the terminal device receives the second DCI or the third DCI and the first timer does not run, it indicates that the terminal did not receive the DCI transmitted through unicast before receiving the second DCI or the third DCI. After the terminal device receives the second DCI or the third DCI, the first timer does not start or restart, indicating that after the terminal device receives the second DCI or the third DCI, it does not receive other DCI transmitted through unicast mode.
因此，如果第一数据包括第一LCID，终端设备未接收到通过组播方式传输的第一DCI，以及接收到第二DCI或第三DCI，第一定时器未运行；和/或；接收到第二DCI或第三DCI后，第一定时器未启动或重启。那么，终端设备接收到第一数据时，第一定时器的运行则是由于终端设备将第二DCI或第三DCI，误判为本次进行初传时通过单播方式传输的DCI造成的，因此停止第一定时器，以减少第一定时器的运行带来的多余功耗。Therefore, if the first data includes the first LCID, the terminal device does not receive the first DCI transmitted through multicast, and the second DCI or the third DCI is received, the first timer does not run; and/or; After the second DCI or the third DCI, the first timer is not started or restarted. Then, when the terminal device receives the first data, the operation of the first timer is caused by the terminal device misjudging the second DCI or the third DCI as the DCI transmitted through unicast during the initial transmission. Therefore, the first timer is stopped to reduce excess power consumption caused by the operation of the first timer.
另一种可选的实施方式中，如果执行缩短第一定时器的剩余运行时长，第一条件还包括：接收到第二DCI或第三DCI，第一定时器运行；和/或，接收到第二DCI或第三DCI后，第一定时器未启动或重启。In another optional implementation, if the remaining running time of the first timer is shortened, the first condition also includes: receiving the second DCI or the third DCI, and the first timer runs; and/or receiving After the second DCI or the third DCI, the first timer is not started or restarted.
终端设备接收到第二DCI或第三DCI，第一定时器运行，表明终端设备接收第二DCI或第三DCI之前，由于接收前一次通过单播方式初传的其他DCI，启动或重启了第一定时器。因此，如果终端设备通过满足上述第一条件，确定第一数据是组播的重传数据，即确定调度第一数据的第二DCI或第三DCI是本次重传的组播DCI，且接收到第二DCI或第三DCI，第一定时器运行。那么，此时第一定时器的运行是终端设备将第二DCI或第三DCI，误判为本次通过单播方式初传的DCI而启动或重启的。该方式下，终端设备需缩短第一定时器的剩余运行时长，保障第一定时器因接收第二DCI或第三DCI之前启动或重启时的剩余运行时长即可，从而可减少因启动或重启第一定时器带来的多余功耗。When the terminal equipment receives the second DCI or the third DCI, the first timer runs, indicating that before the terminal equipment receives the second DCI or the third DCI, the terminal equipment starts or restarts the third DCI due to receiving other DCI initially transmitted through unicast mode. A timer. Therefore, if the terminal device determines that the first data is multicast retransmission data by satisfying the above first condition, that is, it determines that the second DCI or the third DCI that schedules the first data is the multicast DCI for this retransmission, and receives To the second DCI or the third DCI, the first timer runs. Then, at this time, the operation of the first timer is started or restarted because the terminal device misjudges the second DCI or the third DCI as the DCI initially transmitted through unicast mode. In this method, the terminal device needs to shorten the remaining running time of the first timer to ensure that the remaining running time of the first timer is started or restarted before receiving the second DCI or third DCI, thereby reducing the remaining running time due to startup or restart. The excess power consumption caused by the first timer.
终端设备接收到第二DCI或第三DCI后，第一定时器未启动或重启，表明终端设备接收到第二DCI或第三DCI后，未由于接收到其他单播传输，而启动或重启第一定时器。因此，第一定时器是由于第二 DCI或第三DCI的接收而启动或重启的，而第二DCI或第三DCI实际是组播的重传，第一定时器不应被启动或重启。从而，终端设备需缩短第一定时器的剩余运行时长。After the terminal device receives the second DCI or the third DCI, the first timer is not started or restarted, indicating that after the terminal device receives the second DCI or the third DCI, the first timer is not started or restarted due to receipt of other unicast transmissions. A timer. Therefore, the first timer is due to the second If the second DCI or third DCI is actually a multicast retransmission, the first timer should not be started or restarted. Therefore, the terminal device needs to shorten the remaining running time of the first timer.
一种可选的实施方式中，上述第二DCI是通过单播方式传输的包括：第二DCI是小区-无线网络临时标识符C-RNTI加扰的。可见，第二DCI是C-RNTI加扰的，等价于该第二DCI是通过单播方式传输的。In an optional implementation manner, the above-mentioned second DCI is transmitted in a unicast manner, including: the second DCI is scrambled by the cell-radio network temporary identifier C-RNTI. It can be seen that the second DCI is scrambled by C-RNTI, which is equivalent to the second DCI being transmitted in a unicast manner.
一种可选的实施方式中，上述第一DCI是通过组播方式传输的包括：第一DCI是第一RNTI加扰的。其中，第一RNTI用于以下一项或多项：用于组播，用于调度组播动态资源，用于调度组播动态资源的重传资源。In an optional implementation manner, the above-mentioned first DCI is transmitted in a multicast manner, including: the first DCI is scrambled by the first RNTI. The first RNTI is used for one or more of the following: used for multicast, used for scheduling multicast dynamic resources, and used for scheduling retransmission resources of multicast dynamic resources.
一种可选的实施方式中，第一LCID与第一RNTI相关联，和/或，组播关联的DRX与第一RNTI相关联。其中，第一RNTI用于以下一项或多项：用于组播，用于调度组播动态资源，用于调度组播动态资源的重传资源。In an optional implementation, the first LCID is associated with the first RNTI, and/or the multicast-associated DRX is associated with the first RNTI. The first RNTI is used for one or more of the following: used for multicast, used for scheduling multicast dynamic resources, and used for scheduling retransmission resources of multicast dynamic resources.
第二方面，本申请还提供一种通信装置。该通信装置具有实现上述第一方面所述的终端设备的部分或全部功能。比如，该通信装置的功能可具备本申请中第一方面所述的终端设备的部分或全部实施例中的功能，也可以具备单独实施本申请中的任一个实施例的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。In a second aspect, this application also provides a communication device. The communication device has the ability to implement part or all of the functions of the terminal device described in the first aspect. For example, the communication device may have the functions of some or all of the embodiments of the terminal device described in the first aspect of this application, or may have the functions of independently implementing any of the embodiments of this application. The functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.
在一种可能的设计中，该通信装置的结构中可包括处理单元和通信单元，所述处理单元被配置为支持通信装置执行上述方法中相应的功能。所述通信单元用于支持该通信装置与其他通信装置之间的通信。所述通信装置还可以包括存储单元，所述存储单元用于与处理单元和通信单元耦合，其保存通信装置必要的程序指令和数据。In a possible design, the structure of the communication device may include a processing unit and a communication unit, and the processing unit is configured to support the communication device to perform corresponding functions in the above method. The communication unit is used to support communication between the communication device and other communication devices. The communication device may further include a storage unit coupled to the processing unit and the communication unit, which stores necessary program instructions and data for the communication device.
一种实施方式中，所述通信装置包括：处理单元和通信单元；通信单元用于进行数据/信令收发；处理单元，用于：In one implementation, the communication device includes: a processing unit and a communication unit; the communication unit is used for sending and receiving data/signaling; and the processing unit is used for:
满足第一条件，执行以下一项或多项：To meet the first condition, do one or more of the following:
控制组播关联的非连续接收DRX处于激活时间；Controls the activation time of discontinuous reception DRX associated with multicast;
停止第一定时器或缩短第一定时器的剩余运行时长，所述第一定时器为与单播关联的DRX对应的非激活定时器；Stop the first timer or shorten the remaining running time of the first timer, where the first timer is an inactive timer corresponding to the DRX associated with unicast;
其中，所述第一条件包括：第一数据包括第一逻辑信道标识LCID，且未接收到第一下行控制信息DCI；Wherein, the first condition includes: the first data includes the first logical channel identifier LCID, and the first downlink control information DCI is not received;
所述第一数据是第二DCI调度的，所述第二DCI是通过单播方式传输的，所述第一LCID为第一组播广播服务业务信道MTCH的标识，所述第一DCI是通过组播方式传输的，所述第一DCI用于调度所述第一数据。The first data is scheduled by the second DCI, the second DCI is transmitted through unicast, the first LCID is the identifier of the first multicast broadcast service channel MTCH, and the first DCI is transmitted through Transmitted in a multicast manner, the first DCI is used to schedule the first data.
另外，该方面中，通信装置其他可选的实施方式可参见上述第一方面的相关内容，此处不再详述。In addition, in this aspect, for other optional implementations of the communication device, please refer to the relevant content of the above-mentioned first aspect, which will not be described in detail here.
作为示例，通信单元可以为收发器或通信接口，存储单元可以为存储器，处理单元可以为处理器。As an example, the communication unit may be a transceiver or a communication interface, the storage unit may be a memory, and the processing unit may be a processor.
一种实施方式中，所述通信装置包括：处理器和收发器；收发器用于进行数据/信令收发；处理器，用于：In one implementation, the communication device includes: a processor and a transceiver; the transceiver is used for sending and receiving data/signaling; the processor is used for:
满足第一条件，执行以下一项或多项：To meet the first condition, do one or more of the following:
控制组播关联的非连续接收DRX处于激活时间；Controls the activation time of discontinuous reception DRX associated with multicast;
停止第一定时器或缩短第一定时器的剩余运行时长，所述第一定时器为与单播关联的DRX对应的非激活定时器；Stop the first timer or shorten the remaining running time of the first timer, where the first timer is an inactive timer corresponding to the DRX associated with unicast;
其中，所述第一条件包括：第一数据包括第一逻辑信道标识LCID，且未接收到第一下行控制信息DCI；Wherein, the first condition includes: the first data includes the first logical channel identifier LCID, and the first downlink control information DCI is not received;
所述第一数据是第二DCI调度的，所述第二DCI是通过单播方式传输的，所述第一LCID为第一组播广播服务业务信道MTCH的标识，所述第一DCI是通过组播方式传输的，所述第一DCI用于调度所述第一数据。The first data is scheduled by the second DCI, the second DCI is transmitted through unicast, the first LCID is the identifier of the first multicast broadcast service channel MTCH, and the first DCI is transmitted through Transmitted in a multicast manner, the first DCI is used to schedule the first data.
另外，该方面中，上行通信装置其他可选的实施方式可参见上述第一方面的相关内容，此处不再详述。In addition, in this aspect, for other optional implementations of the uplink communication device, please refer to the relevant content of the above-mentioned first aspect, which will not be described in detail here.
另一种实施方式中，该通信装置为芯片或芯片***。所述处理单元也可以体现为处理电路或逻辑电路；所述收发单元可以是该芯片或芯片***上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等。In another embodiment, the communication device is a chip or a chip system. The processing unit can also be embodied as a processing circuit or a logic circuit; the transceiver unit can be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip or chip system.
在实现过程中，处理器可用于进行，例如但不限于，基带相关处理，收发器可用于进行，例如但不限于，射频收发。上述器件可以分别设置在彼此独立的芯片上，也可以至少部分的或者全部的设置在同一块芯片上。例如，处理器可以进一步划分为模拟基带处理器和数字基带处理器。其中，模拟基带处理器可以与收发器集成在同一块芯片上，数字基带处理器可以设置在独立的芯片上。随着集成电路技术的不断发展， 可以在同一块芯片上集成的器件越来越多。例如，数字基带处理器可以与多种应用处理器(例如但不限于图形处理器，多媒体处理器等)集成在同一块芯片之上。这样的芯片可以称为***芯片(system on a chip，SLC)。将各个器件独立设置在不同的芯片上，还是整合设置在一个或者多个芯片上，往往取决于产品设计的需要。本申请实施例对上述器件的实现形式不做限定。During the implementation process, the processor may be used to perform, for example, but not limited to, baseband related processing, and the transceiver may be used to perform, for example, but not limited to, radio frequency transceiver. The above-mentioned devices may be arranged on separate chips, or at least part or all of them may be arranged on the same chip. For example, processors can be further divided into analog baseband processors and digital baseband processors. Among them, the analog baseband processor can be integrated with the transceiver on the same chip, and the digital baseband processor can be set on an independent chip. With the continuous development of integrated circuit technology, More and more devices can be integrated on the same chip. For example, the digital baseband processor can be integrated with a variety of application processors (such as but not limited to graphics processors, multimedia processors, etc.) on the same chip. Such a chip can be called a system on a chip (SLC). Whether each device is independently installed on different chips or integrated on one or more chips often depends on the needs of product design. The embodiments of this application do not limit the implementation form of the above devices.
第三方面，本申请还提供一种处理器，用于执行上述各种方法。在执行这些方法的过程中，上述方法中有关发送上述信息和接收上述信息的过程，可以理解为由处理器输出上述信息的过程，以及处理器接收输入的上述信息的过程。在输出上述信息时，处理器将该上述信息输出给收发器，以便由收发器进行发射。该上述信息在由处理器输出之后，还可能需要进行其他的处理，然后才到达收发器。类似的，处理器接收输入的上述信息时，收发器接收该上述信息，并将其输入处理器。更进一步的，在收发器收到该上述信息之后，该上述信息可能需要进行其他的处理，然后才输入处理器。In a third aspect, this application also provides a processor for executing the various methods mentioned above. In the process of executing these methods, the process of sending the above information and receiving the above information in the above method can be understood as the process of the processor outputting the above information, and the process of the processor receiving the input above information. When outputting the above information, the processor outputs the above information to the transceiver for transmission by the transceiver. After the above information is output by the processor, it may also need to undergo other processing before reaching the transceiver. Similarly, when the processor receives the above information input, the transceiver receives the above information and inputs it into the processor. Furthermore, after the transceiver receives the above information, the above information may need to undergo other processing before being input to the processor.
对于处理器所涉及的发送和接收等操作，如果没有特殊说明，或者，如果未与其在相关描述中的实际作用或者内在逻辑相抵触，则均可以更加一般性的理解为处理器输出和接收、输入等操作，而不是直接由射频电路和天线所进行的发送和接收操作。For the sending and receiving operations involved in the processor, if there is no special explanation, or if it does not conflict with its actual role or internal logic in the relevant description, it can be more generally understood as processor output and reception, input operations, rather than the transmitting and receiving operations performed directly by RF circuits and antennas.
在实现过程中，上述处理器可以是专门用于执行这些方法的处理器，也可以是执行存储器中的计算机指令来执行这些方法的处理器，例如通用处理器。上述存储器可以为非瞬时性(non-transitory)存储器，例如只读存储器(read only memory，ROM)，其可以与处理器集成在同一块芯片上，也可以分别设置在不同的芯片上，本申请实施例对存储器的类型以及存储器与处理器的设置方式不做限定。During implementation, the above-mentioned processor may be a processor specifically designed to perform these methods, or may be a processor that executes computer instructions in a memory to perform these methods, such as a general-purpose processor. The above-mentioned memory can be a non-transitory memory, such as a read-only memory (ROM), which can be integrated on the same chip as the processor, or can be separately provided on different chips. This application The embodiment does not limit the type of memory and the arrangement of the memory and the processor.
第四方面，本申请还提供了一种通信***，该***包括一个或多个网络设备，以及一个或多个终端设备。在另一种可能的设计中，该***还可以包括与网络设备、终端设备进行交互的其他设备。In a fourth aspect, this application also provides a communication system, which includes one or more network devices and one or more terminal devices. In another possible design, the system may also include other devices that interact with network devices and terminal devices.
第五方面，本申请提供了一种计算机可读存储介质，用于储存指令，当所述指令被计算机运行时，实现上述第一方面任一项所述的方法。In a fifth aspect, the present application provides a computer-readable storage medium for storing instructions that, when executed by a computer, implement the method described in any one of the above first aspects.
第六方面，本申请还提供了一种包括指令的计算机程序产品，当其在计算机上运行时，实现上述第一方面任一项所述的方法。In a sixth aspect, the present application also provides a computer program product including instructions that, when run on a computer, implement the method described in any one of the above first aspects.
第七方面，本申请提供了一种芯片***，该芯片***包括处理器和接口，所述接口用于获取程序或指令，所述处理器用于调用所述程序或指令以实现或者支持终端设备实现第一方面所涉及的功能。例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中，所述芯片***还包括存储器，所述存储器，用于保存终端必要的程序指令和数据。该芯片***，可以由芯片构成，也可以包括芯片和其他分立器件。In a seventh aspect, the present application provides a chip system. The chip system includes a processor and an interface. The interface is used to obtain programs or instructions. The processor is used to call the programs or instructions to implement or support terminal device implementation. The first aspect involves the functions. For example, at least one of the data and information involved in the above method is determined or processed. In a possible design, the chip system further includes a memory, and the memory is used to store necessary program instructions and data for the terminal. The chip system may be composed of chips, or may include chips and other discrete devices.
第八方面，本申请提供一种通信装置，包括处理器，用于执行存储器中存储的计算机程序或可执行指令，当计算机程序或可执行指令被执行时，使得该装置执行如第一方面各个可能的实现中的方法。In an eighth aspect, the present application provides a communication device, including a processor for executing a computer program or executable instructions stored in a memory. When the computer program or executable instructions are executed, the device performs the steps of the first aspect. Methods in possible implementations.
在一种可能的实现中，处理器和存储器集成在一起；In one possible implementation, the processor and memory are integrated;
在另一种可能的实现中，上述存储器位于该通信装置之外。In another possible implementation, the above-mentioned memory is located outside the communication device.
第二方面到第八方面的有益效果可以参考第一方面的有益效果，此处不再赘述。The beneficial effects from the second aspect to the eighth aspect can be referred to the beneficial effects from the first aspect, and will not be described again here.
附图说明Description of drawings
图1是本申请实施例提供的一种通信***的***结构示意图；Figure 1 is a schematic system structure diagram of a communication system provided by an embodiment of the present application;
图2是本申请实施例提供的一种非连续接收的周期示意图；Figure 2 is a schematic diagram of a discontinuous reception cycle provided by an embodiment of the present application;
图3a是本申请实施例提供的一种信道映射示意图；Figure 3a is a schematic diagram of channel mapping provided by an embodiment of the present application;
图3b是本申请实施例提供的一种终端设备的实体示意图；Figure 3b is a physical diagram of a terminal device provided by an embodiment of the present application;
图4a是本申请实施例提供的一种传输示意图；Figure 4a is a transmission schematic diagram provided by an embodiment of the present application;
图4b是本申请实施例提供的另一种传输示意图；Figure 4b is another transmission schematic diagram provided by an embodiment of the present application;
图5是本申请实施例提供的又一种传输示意图；Figure 5 is another transmission schematic diagram provided by an embodiment of the present application;
图6是本申请实施例提供的又一种传输示意图；Figure 6 is another transmission schematic diagram provided by an embodiment of the present application;
图7是本申请实施例提供的一种通信方法的示意图；Figure 7 is a schematic diagram of a communication method provided by an embodiment of the present application;
图8是本申请实施例提供的又一种传输示意图；Figure 8 is another transmission schematic diagram provided by an embodiment of the present application;
图9是本申请实施例提供的一种通信示意图；Figure 9 is a communication schematic diagram provided by an embodiment of the present application;
图10是本申请实施例提供的另一种通信方法的流程示意图；Figure 10 is a schematic flow chart of another communication method provided by an embodiment of the present application;
图11是本申请实施例提供的一种通信装置的结构示意图； Figure 11 is a schematic structural diagram of a communication device provided by an embodiment of the present application;
图12是本申请实施例提供的另一种通信装置的结构示意图；Figure 12 is a schematic structural diagram of another communication device provided by an embodiment of the present application;
图13是本申请实施例提供的一种芯片的结构示意图。Figure 13 is a schematic structural diagram of a chip provided by an embodiment of the present application.
具体实施方式Detailed ways
下面结合本申请实施例中的附图对本申请实施例中的技术方案进行清楚、完整的描述。The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application.
其中，本申请的说明书、权利要求书及附图中的术语“第一”和“第二”等是用于区别不同对象，而不是用于描述特定顺序。“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本实施例的描述中，除非另有说明，“多个”的含义是两个或两个以上。Among them, the terms "first" and "second" in the description, claims and drawings of this application are used to distinguish different objects, rather than describing a specific sequence. “First” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this embodiment, unless otherwise specified, "plurality" means two or more.
此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、***、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。Furthermore, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes Other steps or units inherent to such processes, methods, products or devices.
应当理解，在本申请中，“多个”是指两个或两个以上。“和/或”，用于描述关联对象的关联关系，表示可以存在三种关系。例如，“A和/或B”可以表示：只存在A，只存在B以及同时存在A和B三种情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“…时”以及“若”均指在某种客观情况下会做出相应的处理，并非是限定时间，且也不要求实现时要有判断的动作，也不意味着存在其它限定。It should be understood that in this application, "plurality" means two or more. "And/or" is used to describe the relationship between associated objects, indicating that three relationships can exist. For example, "A and/or B" can mean: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character "/" generally indicates that the related objects are in an "or" relationship. "...when" and "if" both mean that corresponding processing will be made under certain objective circumstances. They do not limit the time, nor do they require judgment during implementation, nor do they mean that there are other limitations.
在本申请实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念，便于理解。In the embodiments of this application, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "such as" in the embodiments of the present application is not to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner that is easier to understand.
一.通信***。1. Communication system.
为了更好的理解本申请实施例公开的通信方法，对本申请实施例适用的通信***进行描述。In order to better understand the communication method disclosed in the embodiment of the present application, the communication system applicable to the embodiment of the present application is described.
本申请实施例可应用于第五代移动通信(5th generation mobile communication，5G)***、第六代移动通信(6th generation mobile communication，6G)***、下一代无线接入网(next generation radio access networks，NG-RAN)、卫星通信及短距等无线通信***中，***架构如图1所示。无线通信***可以包括一个或多个网络设备，以及一个或多个终端设备。无线通信***也可以进行点对点通信，如多个终端设备之间互相通信。The embodiments of the present application can be applied to fifth generation mobile communication (5th generation mobile communication, 5G) systems, sixth generation mobile communication (6th generation mobile communication, 6G) systems, and next generation radio access networks (next generation radio access networks). In wireless communication systems such as NG-RAN), satellite communications and short-range, the system architecture is shown in Figure 1. A wireless communication system may include one or more network devices and one or more terminal devices. Wireless communication systems can also perform point-to-point communication, such as communication between multiple terminal devices.
可理解的，本申请实施例提及的无线通信***包括但不限于：窄带物联网***(narrow band-internet of things，NB-IoT)、长期演进***(long term evolution，LTE)，5G/6G移动通信***的三大应用场景：增强移动宽带(enhanced mobile broadband，eMBB)、超可靠低时延通信(ultra reliable low latency communication，URLLC)和海量机器类通信(massive machine type of communication，mMTC)，无线保真(wireless fidelity，WiFi)***，或者5G之后的移动通信***等。It can be understood that the wireless communication systems mentioned in the embodiments of this application include but are not limited to: narrowband-internet of things (NB-IoT), long term evolution (LTE), 5G/6G The three major application scenarios of mobile communication systems: enhanced mobile broadband (eMBB), ultra-reliable low latency communication (URLLC) and massive machine type of communication (mMTC), Wireless fidelity (WiFi) system, or mobile communication system after 5G, etc.
本申请实施例中，网络设备是具有无线收发功能的设备，用于与终端设备进行通信，可以是LTE中的演进型基站(evolved Node B，eNB或eNodeB)，或者是5G/6G网络中的基站或者未来演进的公共陆地移动网络(public land mobile network，PLMN)中的基站、宽带网络业务网关(broadband network gateway，BNG)、汇聚交换机或者非第三代合作伙伴项目(3rd generation partnership project，3GPP)接入设备等。可选的，本申请实施例中的网络设备可以包括各种形式的基站，例如：宏基站、微基站(也称为小站)、中继站、接入点、未来实现基站功能的设备、WiFi***中的接入节点、传输接收点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、移动交换中心以及设备到设备(device-to-device，D2D)、车辆外联(vehicle-to-everything，V2X)、机器到机器(machine-to-machine，M2M)通信中承担基站功能的设备等，本申请实施例对此不作具体限定。In the embodiment of this application, the network device is a device with wireless transceiver function, used to communicate with the terminal device, and can be an evolved base station (evolved Node B, eNB or eNodeB) in LTE, or a 5G/6G network. Base station or base station in the future evolved public land mobile network (PLMN), broadband network gateway (BNG), aggregation switch or non-3rd generation partnership project (3GPP) ) access equipment, etc. Optionally, the network equipment in the embodiments of this application may include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, access points, future equipment that implements base station functions, and WiFi systems. The access node, transmitting and receiving point (TRP), transmitting point (TP), mobile switching center and device-to-device (D2D), vehicle outreach (vehicle- to-everything (V2X), machine-to-machine (M2M) communication, equipment that assumes base station functions, etc., the embodiments of the present application do not specifically limit this.
网络设备可以和核心网设备进行通信交互，向终端设备提供通信服务。核心网设备例如为5G网络核心网(core network，CN)中的设备。核心网作为承载网络提供到数据网络的接口，为终端提供通信连接、认证、管理、策略控制以及对数据业务完成承载等。Network equipment can communicate and interact with core network equipment and provide communication services to terminal equipment. The core network equipment is, for example, equipment in the 5G network core network (core network, CN). As a bearer network, the core network provides an interface to the data network, provides terminals with communication connections, authentication, management, policy control, and carries data services.
本申请实施例所涉及到的终端设备可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备。终端设备也可称为终端。终端设备也可以指用户设备(user equipment，UE)、接入终端、用户单元(subscriber unit)、用户代理、蜂窝电话(cellular phone)、智能手机(smart phone)、无线数据卡、个人数字助理(personal digital assistant，PDA)电脑、平板型电 脑、无线调制解调器(modem)、手持设备(handset)、膝上型电脑(laptop computer)、机器类型通信(machine type communication，MTC)终端、高空飞机上搭载的通信设备、可穿戴设备、无人机、机器人、设备到设备通信(device-to-device，D2D)中的终端、车到一切(vehicle to everything，V2X)中的终端、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端或者未来通信网络中的终端设备等，本申请不作限制。The terminal devices involved in the embodiments of this application may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to wireless modems. Terminal devices may also be called terminals. Terminal equipment can also refer to user equipment (UE), access terminal, subscriber unit, user agent, cellular phone, smart phone, wireless data card, personal digital assistant ( personal digital assistant (PDA) computer, tablet computer Computers, wireless modems, handheld devices, laptop computers, machine type communication (MTC) terminals, communication equipment carried on high-altitude aircraft, wearable devices, drones , robots, terminals in device-to-device communication (D2D), terminals in vehicle to everything (V2X), virtual reality (VR) terminal equipment, augmented reality , AR) terminal equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, and wireless terminals in smart grids , wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, or terminal equipment in future communication networks, etc., are not limited by this application.
二.相关概念。2. Related concepts.
为了更好的理解本申请实施例公开的通信方法，对本申请实施例涉及的相关概念进行简单的介绍。In order to better understand the communication method disclosed in the embodiments of this application, the relevant concepts involved in the embodiments of this application are briefly introduced.
1、组播和广播服务(multicast and broadcast services，MBS)。1. Multicast and broadcast services (MBS).
本申请实施例提到的广播组播业务可以为NR***下的MBS。MBS是3GPP为了有效地利用移动通信网络资源而引入，其在移动通信网络中提供一个数据源向多个用户发送数据的点到多点业务，实现网络资源共享，提高资源利用率，尤其是空口接口资源。NR MBS支持组播和广播。The broadcast multicast service mentioned in the embodiment of this application may be MBS under the NR system. MBS is introduced by 3GPP to effectively utilize mobile communication network resources. It provides a data source in the mobile communication network to send data to multiple users for point-to-multipoint services, realizing network resource sharing and improving resource utilization, especially the air interface. Interface resources. NR MBS supports multicast and broadcast.
2、组播和单播。2. Multicast and unicast.
组播可以包括以下任一项或多项：多媒体广播和组播业务(multimedia broadcast multicast service，MBMS)或MBS中的广播；MBMS或MBS中的组播；MBMS或MBS中的多播；V2X中的组播；V2X中的多播；V2X中的广播(broadcast)；多播或组播(multicast)；组播(groupcast)；广播。Multicast can include any one or more of the following: multimedia broadcast multicast service (MBMS) or broadcast in MBS; multicast in MBMS or MBS; multicast in MBMS or MBS; V2X multicast; multicast in V2X; broadcast in V2X; multicast or multicast (multicast); multicast (groupcast); broadcast.
组播业务可以包括/替换为以下任一项或多项：广播业务、多播业务、MBS业务、MBS广播业务、MBS多播业务、V2X组播业务、V2X广播业务。The multicast service may include/replace with any one or more of the following: broadcast service, multicast service, MBS service, MBS broadcast service, MBS multicast service, V2X multicast service, and V2X broadcast service.
组播业务对应的数据可以称为组播数据。The data corresponding to the multicast service can be called multicast data.
单播可以包括以下任一项或多项：V2X中的单播；单播(unicast)。需要说明的是，单播可理解为单播传输。Unicast can include any one or more of the following: unicast in V2X; unicast. It should be noted that unicast can be understood as unicast transmission.
组播业务也可以理解为组播会话或MBS会话。Multicast services can also be understood as multicast sessions or MBS sessions.
本申请实施例中的“组播”也可以替换为“多播”等名词。相对应的，组播业务也可以替换为多播业务。"Multicast" in the embodiments of this application can also be replaced by nouns such as "multicast". Correspondingly, multicast services can also be replaced by multicast services.
组播可以将相同的服务和/或相同的内容数据同时提供给一组/多个终端设备。Multicast can provide the same service and/or the same content data to a group/multiple terminal devices at the same time.
例如，组播可以是针对一组特定的终端设备，终端设备可能需要进行“组加入过程”。For example, multicast may be targeted at a specific group of terminal devices, and the terminal devices may need to undergo a "group joining process."
对应的，单播可以理解为将相同的服务和/或相同的内容数据同时提供给一个终端设备。单播可以理解为：针对一个数据，若要发送给多个设备，需要给每个设备单独的发送该数据。Correspondingly, unicast can be understood as providing the same service and/or the same content data to a terminal device at the same time. Unicast can be understood as: for a piece of data, if you want to send it to multiple devices, you need to send the data to each device separately.
3、组播和单播传输方式。3. Multicast and unicast transmission methods.
3.1、组播的传输方式。3.1. Multicast transmission method.
针对组播业务/数据的传输，或者，针对组播对应的组播广播服务业务信道(MBS traffic channel，MTCH)相关的数据的传输，可以有下列任一种或多种传输方式：组播动态传输方式和/或组播配置传输方式。For the transmission of multicast services/data, or for the transmission of data related to the multicast broadcast service channel (MBS traffic channel, MTCH) corresponding to multicast, there can be any one or more of the following transmission methods: Multicast dynamic Transport method and/or multicast configuration transport method.
其中，组播动态传输方式包括点到点(point-to-point，PTP)传输方式和/或点到多点(point-to-multipoint，PTM)传输方式。Among them, the multicast dynamic transmission method includes a point-to-point (PTP) transmission method and/or a point-to-multipoint (point-to-multipoint, PTM) transmission method.
PTP传输方式：通过该传输方式，发送端将一份数据发给一个接收端。例如，(网络设备以UE特定的无线网络临时标识符(radio network temporary identity，RNTI)加扰的物理下行控制信道(physical uplink control channel，PDCCH)为终端设备调度物理下行共享信道(physical downlink shared channel，PDSCH)或为终端设备调度UE特定的RNTI加扰的PDSCH。PTP传输方式也可以称为C+C传输方式。PTP transmission method: Through this transmission method, the sender sends a copy of data to a receiver. For example, (the network device schedules the physical downlink shared channel (physical downlink shared channel) for the terminal device with the physical uplink control channel (PDCCH) scrambled by the UE-specific radio network temporary identity (RNTI) , PDSCH) or schedule the UE-specific RNTI scrambled PDSCH for the terminal device. The PTP transmission method can also be called the C+C transmission method.
例如，UE特定的RNTI可以包括以下任一项或多项：小区无线网络临时标识符(cell-RNTI，C-RNTI)，配置调度RNTI(configured scheduling RNTI，CS-RNTI)，第二RNTI。For example, the UE-specific RNTI may include any one or more of the following: cell radio network temporary identifier (cell-RNTI, C-RNTI), configured scheduling RNTI (configured scheduling RNTI, CS-RNTI), and the second RNTI.
PTM传输方式：通过PTM传输方式，发送端可以将一份数据发送给多个接收端。PTM transmission method: Through PTM transmission method, the sender can send one piece of data to multiple receivers.
例如，网络设备以公共的RNTI加扰的PDCCH为终端设备调度PDSCH或为终端设备调度公共的RNTI加扰的PDSCH。或者可以这样理解，网络侧通过一个公共的RNTI加扰一个DCI，该DCI用于调度通过一个公共RNTI加扰的一个数据，这种情况下，多个终端设备接收到同一个DCI，且这多个终端设备接收的数据相同。PTM传输方式也可以称为G+G传输方式。 For example, the network device uses a common RNTI-scrambled PDCCH to schedule a PDSCH for the terminal device or schedules a common RNTI-scrambled PDSCH for the terminal device. Or it can be understood that the network side scrambles a DCI through a common RNTI, and the DCI is used to schedule a data scrambled through a common RNTI. In this case, multiple terminal devices receive the same DCI, and these multiple The data received by each terminal device is the same. The PTM transmission method can also be called the G+G transmission method.
例如，公共的RNTI可以包括以下任一项或多项：组无线网络临时标识符(group RNTI，G-RNTI)、组配置调度无线网络临时标识符(group configured scheduling RNTI，G-CS-RNTI)、第一RNTI。For example, the public RNTI may include any one or more of the following: group radio network temporary identifier (group RNTI, G-RNTI), group configured scheduling radio network temporary identifier (group configured scheduling RNTI, G-CS-RNTI) , the first RNTI.
组播配置传输方式可以理解为：网络设备在组播配置资源上向终端设备传输数据/组播数据；或，终端设备在组播配置资源上接收网络设备发送的数据/组播数据。The multicast configuration transmission method can be understood as: the network device transmits data/multicast data to the terminal device on the multicast configuration resource; or the terminal device receives the data/multicast data sent by the network device on the multicast configuration resource.
组播配置传输方式也可以称为组播半静态传输方式。The multicast configuration transmission method can also be called multicast semi-static transmission method.
组播配置资源也可以称为组播半静态调度(semi-persistent scheduling，SPS)资源。Multicast configuration resources can also be called multicast semi-persistent scheduling (SPS) resources.
针对组播对应的MTCH相关的数据的传输，为描述方便，可以统称为：组播MTCH相关传输。The transmission of MTCH-related data corresponding to multicast can be collectively referred to as: multicast MTCH-related transmission for convenience of description.
3.2、单播的传输方式。3.2. Unicast transmission method.
针对单播业务(或单播数据)的传输和/或组播对应的专用业务信道(dedicate traffic channel，DTCH)相关的数据的传输，可以有下列任一项或多种传输方式：单播动态传输方式和/或单播配置传输方式。For the transmission of unicast services (or unicast data) and/or the transmission of data related to the dedicated traffic channel (DTCH) corresponding to multicast, there can be any one or more of the following transmission methods: Unicast dynamic Transport method and/or unicast configuration transport method.
其中，单播动态传输方式也可以称为PTP传输方式。Among them, the unicast dynamic transmission method can also be called the PTP transmission method.
单播动态传输方式：通过该传输方式，发送端将一份数据发给一个接收端。例如，网络设备以UE特定的RNTI加扰的PDCCH为终端设备调度PDSCH或为终端设备调度UE特定的RNTI加扰的PDSCH。Unicast dynamic transmission method: Through this transmission method, the sender sends a piece of data to a receiver. For example, the network device schedules a PDSCH for the terminal device using a PDCCH scrambled with a UE-specific RNTI or schedules a PDSCH scrambled with a UE-specific RNTI for the terminal device.
单播配置传输方式可以理解为：网络设备在单播配置资源上向终端设备传输数据；或，终端设备在单播配置资源上接收网络设备发送的数据。The unicast configuration transmission method can be understood as: the network device transmits data to the terminal device on the unicast configuration resource; or the terminal device receives the data sent by the network device on the unicast configuration resource.
单播配置传输方式也可以称为单播半静态传输方式。The unicast configuration transmission method can also be called the unicast semi-static transmission method.
单播配置资源也可以称为单播SPS资源。Unicast configuration resources may also be called unicast SPS resources.
针对单播业务(或单播数据)的传输和/或组播对应的专用业务信道(dedicate traffic channel，DTCH)相关的数据的传输，为描述方便，可以统称为：单播传输。例如，单播新传，或，单播重传。For the transmission of unicast services (or unicast data) and/or the transmission of data related to the dedicated traffic channel (DTCH) corresponding to multicast, for the convenience of description, it can be collectively referred to as: unicast transmission. For example, unicast new transmission, or unicast retransmission.
4、非连续接收(discontinuous reception，DRX)。4. Discontinuous reception (DRX).
在无线通信***中，为了在保证数据能够有效传输的前提下进一步节省终端设备的功耗，引入了一种DRX的功能来控制终端设备监听PDCCH的行为。在网络设备为终端设备配置了DRX功能的情况下，可以让终端设备在某些时刻进入睡眠状态，使得终端设备无需持续的监听PDCCH，而在需要监听PDCCH的时候，终端设备可以从睡眠状态中唤醒，从而可以在一定程度上节省终端设备的功耗。In wireless communication systems, in order to further save the power consumption of terminal equipment while ensuring effective data transmission, a DRX function is introduced to control the behavior of terminal equipment monitoring PDCCH. When the network device configures the DRX function for the terminal device, the terminal device can be allowed to enter the sleep state at certain times, so that the terminal device does not need to continuously monitor the PDCCH. When it is necessary to monitor the PDCCH, the terminal device can return from the sleep state. Wake up, thus saving the power consumption of the terminal device to a certain extent.
下面将结合图2简单介绍一下DRX：图2是本申请实施例提供的一种DRX周期的示意图。如图2所示，一个DRX周期(DRX cycle)可以包括一个持续时间(例如，on-duration)或唤醒时间(例如，on-duration)和一个睡眠时间(例如，opportunity for DRX)。在持续时间段内，终端设备被唤醒之后，等待接收PDCCH的持续时间，在这段时间，终端设备监听PDCCH。如果终端设备可以成功解码PDCCH，则终端设备可以保持在唤醒状态，或者延长激活时间。在睡眠时间段内，是终端设备的睡眠时间，这段时间内，终端设备不需要监听PDCCH，以节省功耗。可以理解的是，终端设备的睡眠时间越长，终端设备的功耗越低，但相应的，终端设备进行业务传输的时延会增加。The following will briefly introduce DRX in conjunction with Figure 2: Figure 2 is a schematic diagram of a DRX cycle provided by an embodiment of the present application. As shown in Figure 2, a DRX cycle can include a duration (for example, on-duration) or wake-up time (for example, on-duration) and a sleep time (for example, opportunity for DRX). During the duration period, after the terminal device wakes up, it waits for the duration of receiving the PDCCH. During this period, the terminal device monitors the PDCCH. If the terminal device can successfully decode the PDCCH, the terminal device can remain in the awake state, or extend the activation time. During the sleep period, it is the sleep time of the terminal device. During this period, the terminal device does not need to monitor the PDCCH to save power consumption. It is understandable that the longer the sleep time of the terminal device, the lower the power consumption of the terminal device, but correspondingly, the delay of service transmission by the terminal device will increase.
终端设备的DRX功能可以由网络设备进行配置。需要说明的是，即使网络设备为终端设备配置了DRX功能，终端设备也可以根据其他媒体接入控制(medium access control，MAC)层过程的要求来监听PDCCH，即当其他MAC层过程要求终端设备保持监听PDCCH时，无论此时DRX的状态如何，终端设备都需要持续监听PDCCH。The DRX function of the terminal device can be configured by the network device. It should be noted that even if the network device configures the DRX function for the terminal device, the terminal device can still monitor the PDCCH according to the requirements of other media access control (medium access control, MAC) layer processes, that is, when other MAC layer processes require the terminal device to When keeping monitoring the PDCCH, the terminal device needs to continue monitoring the PDCCH no matter what the status of the DRX is at this time.
4.1、单播DRX。4.1. Unicast DRX.
在没有配置DRX组(DRX group)的情况下(或者说，在R15中)，DRX参数是网络设备针对每个终端设备的MAC实体或针对每个终端设备进行配置的，即一个终端设备的MAC实体使用一套DRX参数。In the absence of a DRX group (DRX group) configured (or in R15), the DRX parameters are configured by the network device for the MAC entity of each terminal device or for each terminal device, that is, the MAC of a terminal device Entities use a set of DRX parameters.
在载波聚合(carrier aggregation，CA)的场景下，终端设备对于所有激活的小区都使用相同的一套DRX参数，且运行一套DRX。In the scenario of carrier aggregation (CA), the terminal equipment uses the same set of DRX parameters for all activated cells and runs a set of DRX.
在多模双连接(multi-radio dual connectivity，MR-DC)的场景下，主节点(master node，MN)和辅节点(secondary node，SN)分别对应一个终端设备的MAC实体。因此，终端设备针对MN和SN具有独立的两套DRX参数，且运行两套DRX。也就是说，终端设备针对主小区组(master cell group，MCG)内所有激活的服务小区使用一套DRX参数，运行一套DRX；对于辅小区组(secondary cell group，SCG)内所有激活的服务小区使用另一套DRX参数，运行该另一套DRX。In the scenario of multi-radio dual connectivity (MR-DC), the master node (MN) and the secondary node (SN) respectively correspond to the MAC entity of a terminal device. Therefore, the terminal equipment has two independent sets of DRX parameters for MN and SN, and runs two sets of DRX. That is to say, the terminal device uses a set of DRX parameters and runs a set of DRX for all activated service cells in the master cell group (MCG); for all activated services in the secondary cell group (SCG) The cell uses another set of DRX parameters and runs the other set of DRX.
在没有配置DRX组的情况下，DRX的激活时间可以包括以下任一项或多项：drx-onDurationTimer的运行时间；drx-InactivityTimer的运行时间；drx-RetransmissionTimerDL的运行时间；drx-RetransmissionTimerUL的运行时间；drx-RetransmissionTimerSL的运行时间；在物理上行控制信道 (physical uplink control channel，PUCCH)上发送了调度请求(scheduling request，SR)，并且SR正在等待处理；非竞争随机接入过程成功收到随机接入响应(random access response，RAR)之后(即非竞争随机接入(random access，RA)成功之后)，还没有收到以C-RNTI加扰的指示新传的PDCCH，等等。When no DRX group is configured, the activation time of DRX can include any one or more of the following: the running time of drx-onDurationTimer; the running time of drx-InactivityTimer; the running time of drx-RetransmissionTimerDL; the running time of drx-RetransmissionTimerUL ;The running time of drx-RetransmissionTimerSL; on the physical uplink control channel A scheduling request (SR) is sent on the (physical uplink control channel, PUCCH), and the SR is waiting for processing; after the non-contention random access process successfully receives the random access response (RAR) (that is, not After the contention for random access (RA) is successful), the newly transmitted PDCCH indicating that it is scrambled with C-RNTI has not been received, and so on.
网络设备通过无线资源控制(Radio Resource Control，RRC)消息配置下列参数中任一项或多项来控制DRX操作：Network devices configure any one or more of the following parameters through Radio Resource Control (RRC) messages to control DRX operations:
drx-onDurationTimer：位于DRX周期开头的一段时间。其中，drx-onDurationTimer启动或重启的位置可以是根据基站配置的参数和协议规定的公式计算出来的。drx-onDurationTimer: a period of time at the beginning of the DRX cycle. Among them, the starting or restarting position of drx-onDurationTimer can be calculated based on the parameters configured by the base station and the formula specified by the protocol.
drx-InactivityTimer：指示了上行或下行新传的PDCCH时机(occasion)之后的一段时间。例如，终端设备接收PDCCH(例如，C-RNTI或CS-RNTI加扰的PDCCH)，指示有新的上行或下行传输(即新传调度)，启动或重启drx-InactivityTimer。drx-InactivityTimer: Indicates a period of time after the PDCCH opportunity (occasion) of the uplink or downlink new transmission. For example, the terminal equipment receives PDCCH (for example, C-RNTI or CS-RNTI scrambled PDCCH), indicates that there is a new uplink or downlink transmission (ie, new transmission scheduling), and starts or restarts drx-InactivityTimer.
drx-RetransmissionTimerDL：直到接收到下行(downlink，DL)重传的最大时长。例如，drx-HARQ-RTT-TimerUL超时，且数据没有被成功解码，启动或重启drx-RetransmissionTimerDL。drx-RetransmissionTimerDL: The maximum length of time until a downlink (DL) retransmission is received. For example, drx-HARQ-RTT-TimerUL times out and the data is not successfully decoded, start or restart drx-RetransmissionTimerDL.
drx-RetransmissionTimerUL：直到接收到针对上行(uplink，UL)重传的授权的最大时长。例如，在drx-HARQ-RTT-TimerUL超时之后的第一个符号中，为相应的HARQ进程启动或重启drx-RetransmissionTimerUL。drx-RetransmissionTimerUL: Maximum time until a grant for uplink (UL) retransmission is received. For example, in the first symbol after the drx-HARQ-RTT-TimerUL timeout, drx-RetransmissionTimerUL is started or restarted for the corresponding HARQ process.
drx-HARQ-RTT-TimerDL：MAC实体期望的HARQ重传的DL分配前的最小时长或MAC实体期望接收到HARQ重传的DL分配前的最小时长。例如，终端设备接收PDCCH(比如，C-RNTI或CS-RNTI加扰的PDCCH)，指示有下行传输，或者终端设备在配置的下行分配(比如，单播关联的SPS资源)中接收到数据，反馈后启动或重启drx-HARQ-RTT-TimerDL。其中，RTT代表往返时间(Round Trip Time)。drx-HARQ-RTT-TimerDL: The minimum length of time before the DL allocation of HARQ retransmissions that the MAC entity expects or the minimum length of time before the DL allocation of HARQ retransmissions that the MAC entity expects to receive. For example, the terminal device receives a PDCCH (e.g., C-RNTI or CS-RNTI scrambled PDCCH), indicating that there is a downlink transmission, or the terminal device receives data in the configured downlink allocation (e.g., unicast associated SPS resources), Start or restart drx-HARQ-RTT-TimerDL after feedback. Among them, RTT stands for Round Trip Time.
drx-HARQ-RTT-TimerUL：MAC实体期望的UL HARQ重传授权前的最小时长或MAC实体期望接收到UL HARQ重传授权前的最小时长。例如，终端设备在配置的上行授权(比如，单播关联的SPS资源)中发送了一个MAC协议数据单元(protocol data unit，PDU)，或，终端设备接收PDCCH，指示了UL传输，启动或重启drx-HARQ-RTT-TimerUL。drx-HARQ-RTT-TimerUL: The minimum length of time before the MAC entity expects a UL HARQ retransmission grant or the minimum length of time before the MAC entity expects to receive a UL HARQ retransmission grant. For example, the terminal device sends a MAC protocol data unit (PDU) in the configured uplink grant (e.g., unicast associated SPS resource), or the terminal device receives a PDCCH indicating UL transmission, startup or restart drx-HARQ-RTT-TimerUL.
drx-RetransmissionTimerSL：直到接收到一个针对侧行链路(sidelink，SL)重传的授权的最大时长。drx-RetransmissionTimerSL: Maximum time until a grant for sidelink (SL) retransmission is received.
drx-HARQ-RTT-TimerSL：期望的SL重传授权前的最小时长或期望接收到一个SL重传授权前的最小时长。drx-HARQ-RTT-TimerSL: The minimum length of time before an SL retransmission grant is expected or the minimum length of time before an SL retransmission grant is expected to be received.
相比于R15，在R16标准协议中，单播DRX增加了DRX group的功能。Compared with R15, in the R16 standard protocol, unicast DRX adds the function of DRX group.
下面将简单介绍一下DRX组(group)。The following will briefly introduce the DRX group (group).
DRX组：在一个MAC实体内，针对不同频率范围区分不同的DRX组。例如，针对频率范围(frequency range，FR)1和FR2区分DRX组。即对于FR2上的小区，引入了辅DRX组的概念。每个小区属于一个DRX组。DRX group: Within a MAC entity, different DRX groups are distinguished for different frequency ranges. For example, DRX groups are differentiated for frequency range (FR)1 and FR2. That is, for cells on FR2, the concept of secondary DRX group is introduced. Each cell belongs to a DRX group.
对于FR1和FR2的小区组/DRX组分别有一套drx-onDurationTimer和drx-InactivityTimer的参数，其他的DRX参数是公用的。There are a set of drx-onDurationTimer and drx-InactivityTimer parameters for the cell group/DRX group of FR1 and FR2 respectively, and other DRX parameters are common.
每个DRX组运行一套DRX，即一个MAC实体内，可以有两个DRX组，运行两套DRX。Each DRX group runs one set of DRX, that is, within a MAC entity, there can be two DRX groups running two sets of DRX.
在配置DRX组的情况下，一个DRX组的激活时间可以包括以下任一项或多项：该DRX组的drx-onDurationTimer的运行时间；该DRX组的drx-InactivityTimer的运行时间；该DRX组对应的(或，该DRX组中的任一个小区的)drx-RetransmissionTimerDL的运行时间；该DRX组对应的(或，该DRX组中的任一个小区的)drx-RetransmissionTimerUL的运行时间；该DRX组对应的(或，该DRX组中的任一个小区的)drx-RetransmissionTimerSL的运行时间；在PUCCH上发送了SR，并且SR正在等待处理；非竞争随机接入过程成功收到RAR之后(即非竞争RA成功之后)，还没有收到以C-RNTI加扰的指示新传的PDCCH，等等。When configuring a DRX group, the activation time of a DRX group can include any one or more of the following: the running time of the drx-onDurationTimer of the DRX group; the running time of the drx-InactivityTimer of the DRX group; the corresponding The running time of drx-RetransmissionTimerDL (or any cell in the DRX group); the running time of drx-RetransmissionTimerUL corresponding to the DRX group (or any cell in the DRX group); the running time of the DRX group corresponding (or any cell in the DRX group) drx-RetransmissionTimerSL running time; SR is sent on PUCCH and SR is waiting for processing; after the non-contention random access process successfully receives the RAR (i.e. non-contention RA After success), the newly transmitted PDCCH indicating that it is scrambled with C-RNTI has not been received, etc.
4.2、组播DRX。4.2. Multicast DRX.
组播DRX和单播DRX是独立的，组播的DRX参数可以是每个(per)G-RNTI和/或G-CS-RNTI的，且是每个(per)G-RNTI和/或G-CS-RNTI运行组播DRX的。需要说明的是，单播DRX和组播DRX之间也可能存在一定的关联或交互。例如，终端设备接收到G-RNTI加扰的DCI，也可能会启动或重启单播DRX的drx-HARQ-RTT-TimerDL，和/或，停止单播DRX的drx-RetransmissionTimerDL。Multicast DRX and unicast DRX are independent. Multicast DRX parameters can be per (per) G-RNTI and/or G-CS-RNTI, and per (per) G-RNTI and/or G -CS-RNTI runs multicast DRX. It should be noted that there may also be a certain correlation or interaction between unicast DRX and multicast DRX. For example, when a terminal device receives G-RNTI scrambled DCI, it may also start or restart the drx-HARQ-RTT-TimerDL of unicast DRX, and/or stop the drx-RetransmissionTimerDL of unicast DRX.
针对一个组播，或者，针对一个G-RNTI或G-CS-RNTI，组播DRX的激活时间(active time)可以包括以下任一项或多项：针对该G-RNTI或G-CS-RNTI的drx-onDurationTimerPTM的运行时间，针对该 G-RNTI或G-CS-RNTI的drx-InactivityTimerPTM的运行时间，或，针对该G-RNTI或G-CS-RNTI的drx-RetransmissionTimerDL-PTM的运行时间。For a multicast, or for a G-RNTI or G-CS-RNTI, the multicast DRX activation time (active time) may include any one or more of the following: For the G-RNTI or G-CS-RNTI The running time of drx-onDurationTimerPTM, for the The running time of drx-InactivityTimerPTM of G-RNTI or G-CS-RNTI, or the running time of drx-RetransmissionTimerDL-PTM for this G-RNTI or G-CS-RNTI.
针对组播DRX功能可以描述如下：The multicast DRX function can be described as follows:
网络设备通过RRC消息配置下列参数中任一项或多项来控制组播DRX操作：Network devices configure any one or more of the following parameters through RRC messages to control multicast DRX operations:
drx-onDurationTimerPTM：位于DRX周期开头的一段时间。drx-onDurationTimerPTM启动或重启的位置是根据基站配置的参数和协议规定的公式计算出来的。drx-onDurationTimerPTM: a period of time at the beginning of the DRX cycle. The starting or restarting position of drx-onDurationTimerPTM is calculated based on the parameters configured by the base station and the formula specified by the protocol.
drx-InactivityTimerPTM：指示了DL新传调度的PDCCH时机之后的一段时间。例如，终端设备接收PDCCH(例如，G-RNTI或G-CS-RNTI加扰的PDCCH)，指示有新的下行传输(即新传调度)，启动或重启drx-InactivityTimerPTM。drx-InactivityTimerPTM: Indicates a period of time after the PDCCH opportunity for DL new transmission scheduling. For example, the terminal equipment receives PDCCH (for example, PDCCH scrambled by G-RNTI or G-CS-RNTI), indicates that there is a new downlink transmission (ie, new transmission scheduling), and starts or restarts drx-InactivityTimerPTM.
drx-RetransmissionTimerDL-PTM：直到接收到DL重传的最大时长。例如，drx-HARQ-RTT-TimerDL-PTM超时，且数据没有被成功解码，启动或重启drx-RetransmissionTimerDL-PTM。drx-RetransmissionTimerDL-PTM: Maximum time until DL retransmission is received. For example, drx-HARQ-RTT-TimerDL-PTM times out and the data is not successfully decoded. Start or restart drx-RetransmissionTimerDL-PTM.
drx-HARQ-RTT-TimerDL-PTM：期望的DL重传前的最小时长或期望接收到DL重传前的最小时长。例如，终端设备接收PDCCH(例如，G-RNTI或G-CS-RNTI加扰的PDCCH)，指示有下行传输，或者终端设备在组播配置的下行分配中接收到数据，启动或重启drx-HARQ-RTT-TimerDL-PTM。drx-HARQ-RTT-TimerDL-PTM: The minimum length of time before a DL retransmission is expected or the minimum length of time before a DL retransmission is expected to be received. For example, the terminal device receives PDCCH (for example, G-RNTI or G-CS-RNTI scrambled PDCCH), indicating that there is downlink transmission, or the terminal device receives data in the downlink allocation of the multicast configuration, starts or restarts drx-HARQ -RTT-TimerDL-PTM.
需要说明的是，drx-RetransmissionTimerDL、drx-HARQ-RTT-TimerDL、drx-RetransmissionTimerUL、drx-HARQ-RTT-TimerUL、drx-RetransmissionTimerSL、drx-HARQ-RTT-TimerSL、drx-HARQ-RTT-TimerDL-PTM、drx-RetransmissionTimerDL-PTM中的任一个或多个是每个(per)HARQ进程的。例如，终端设备为不同的HARQ进程，维护不同的drx-HARQ-RTT-TimerDL。例如，终端设备为不同的HARQ进程，维护不同的drx-RetransmissionTimerUL。例如，终端设备为不同的HARQ进程，维护不同的drx-HARQ-RTT-TimerDL-PTM。例如，终端设备为不同的HARQ进程，维护不同的drx-RetransmissionTimerDL-PTM。It should be noted that drx-RetransmissionTimerDL, drx-HARQ-RTT-TimerDL, drx-RetransmissionTimerUL, drx-HARQ-RTT-TimerUL, drx-RetransmissionTimerSL, drx-HARQ-RTT-TimerSL, drx-HARQ-RTT-TimerDL-PTM Any one or more of drx-RetransmissionTimerDL-PTM is per (per) HARQ process. For example, the terminal device maintains different drx-HARQ-RTT-TimerDL for different HARQ processes. For example, the terminal device maintains different drx-RetransmissionTimerUL for different HARQ processes. For example, the terminal device maintains different drx-HARQ-RTT-TimerDL-PTM for different HARQ processes. For example, the terminal device maintains different drx-RetransmissionTimerDL-PTM for different HARQ processes.
需要说明的是，drx-HARQ-RTT-TimerDL-PTM、drx-RetransmissionTimerDL-PTM中的任一个或多个是每个(per)G-RNTI和/或G-CS-RNTI的，或，是每个(per)组播/组播业务的。例如，终端设备为不同的G-RNTI和/或G-CS-RNTI，或，终端设备为不同的组播/组播业务，维护不同的drx-HARQ-RTT-TimerDL-PTM。例如，终端设备为不同的G-RNTI和/或G-CS-RNTI，或，终端设备为不同的组播/组播业务，维护不同的drx-RetransmissionTimerDL-PTM。It should be noted that any one or more of drx-HARQ-RTT-TimerDL-PTM and drx-RetransmissionTimerDL-PTM is per (per) G-RNTI and/or G-CS-RNTI, or per per multicast/multicast service. For example, the terminal equipment has different G-RNTI and/or G-CS-RNTI, or the terminal equipment maintains different drx-HARQ-RTT-TimerDL-PTM for different multicast/multicast services. For example, the terminal equipment maintains different drx-RetransmissionTimerDL-PTM for different G-RNTI and/or G-CS-RNTI, or for different multicast/multicast services.
需要说明的是，DRX相关的内容可以参考3GPP TS 38.321："NR；Medium Access Control(MAC)；Protocol specification"，此处不再赘述。It should be noted that for DRX-related content, please refer to 3GPP TS 38.321: "NR; Medium Access Control (MAC); Protocol specification", which will not be repeated here.
5、组播和单播对应的逻辑信道。5. Logical channels corresponding to multicast and unicast.
组播对应的逻辑信道包括DTCH和MTCH。单播对应的逻辑信道包括DTCH。如图3a所示，图3a是信道映射的示意图。针对组播数据的传输，对应的逻辑信道、传输信道、物理信道分别为：DTCH和MTCH、下行共享信道(downlink-shared channel，DL-SCH)、物理下行共享信道(physical downlink shared channel，PDSCH)。Logical channels corresponding to multicast include DTCH and MTCH. Logical channels corresponding to unicast include DTCH. As shown in Figure 3a, Figure 3a is a schematic diagram of channel mapping. For the transmission of multicast data, the corresponding logical channels, transmission channels, and physical channels are: DTCH and MTCH, downlink-shared channel (DL-SCH), and physical downlink shared channel (PDSCH). .
一个组播业务可能对应/包括一个或多个MBS无线承载(MBS Radio Bearer，MRB)。一个RB/MRB对应一个PDCP实体。对于MRB来说，终端设备的一个PDCP实体可能对应终端设备的一个RLC实体(例如，一个PTP RLC实体或一个PTM RLC实体)，也可能对应两个RLC实体(例如，一个PTP RLC实体和一个PTM RLC实体)。以一个MRB对应的PDCP实体对应2个RLC实体为例进行说明，如图3b所示，分组数据汇聚协议(packet data convergence protocol，PDCP)实体对应PTP无线链路控制(radio link control，RLC)实体和PTM RLC实体，PTP RLC实体和PTM RLC实体均对应MAC实体。PTP RLC实体对应的逻辑信道为DTCH，PTM RLC实体对应的逻辑信道为MTCH。MTCH和DTCH是不同RLC实体对应的逻辑信道。也就说，对于组播数据，可能会与DTCH相关联，也可能会与MTCH相关联。A multicast service may correspond to/include one or more MBS Radio Bearers (MBS Radio Bearer, MRB). One RB/MRB corresponds to one PDCP entity. For MRB, a PDCP entity of the terminal device may correspond to an RLC entity of the terminal device (for example, a PTP RLC entity or a PTM RLC entity), or it may correspond to two RLC entities (for example, a PTP RLC entity and a PTM RLC entity). Take the PDCP entity corresponding to one MRB and two RLC entities as an example. As shown in Figure 3b, the packet data convergence protocol (PDCP) entity corresponds to the PTP radio link control (RLC) entity. and PTM RLC entities, PTP RLC entities and PTM RLC entities both correspond to MAC entities. The logical channel corresponding to the PTP RLC entity is DTCH, and the logical channel corresponding to the PTM RLC entity is MTCH. MTCH and DTCH are logical channels corresponding to different RLC entities. In other words, multicast data may be associated with DTCH or MTCH.
针对一个终端设备，可能存在下列可能性：For a terminal device, the following possibilities may exist:
(1)对于一个组播业务来说，其可能对应一个或多个MTCH，和/或，一个或多个DTCH。针对该组播业务对应的一个或多个MTCH，和/或，一个或多个DTCH，每个逻辑信道的LCID均不同。(1) For a multicast service, it may correspond to one or more MTCHs, and/or, one or more DTCHs. For one or more MTCHs and/or one or more DTCHs corresponding to the multicast service, the LCID of each logical channel is different.
(2)对于不同的组播业务来说，其可能对应不同的MTCH和/或DTCH，每个逻辑信道的LCID也是不同的。对于单播业务来说，其可能对应DTCH。(2) For different multicast services, they may correspond to different MTCHs and/or DTCHs, and the LCID of each logical channel is also different. For unicast services, it may correspond to DTCH.
(3)对于单播业务和组播业务来说，其可能对应不同的DTCH，每个逻辑信道的LCID也是不同的。(3) For unicast services and multicast services, they may correspond to different DTCHs, and the LCID of each logical channel is also different.
可以理解的是，在一个终端设备内，对于单播业务和组播业务对应的多个逻辑信道来说，每个逻辑信 道的LCID均是不同的。It can be understood that within a terminal device, for multiple logical channels corresponding to unicast services and multicast services, each logical channel The LCIDs of the channels are all different.
一个组播业务对应一个G-RNTI和/或一个G-CS-RNTI，一个组播业务可能对应一个或多个MTCH，该一个或多个MTCH对应的数据可以复用到一起组成MAC PDU，该MAC PDU可以通过该G-RNTI加扰的PDCCH进行调度传输，或，该MAC PDU可以在该G-RNTI和/或G-CS-RNTI对应的组播SPS资源上传输。另外，若该MAC PDU通过该G-RNTI加扰的PDCCH进行调度传输，该MAC PDU的重传可以通过该G-RNTI加扰的PDCCH进行调度传输，也可以通过C-RNTI加扰的PDCCH进行调度传输。若该MAC PDU在该G-RNTI和/或G-CS-RNTI对应的组播SPS资源上传输，该MAC PDU的重传可以通过该G-CS-RNTI加扰的PDCCH进行调度传输，也可以通过CS-RNTI加扰的PDCCH进行调度传输。且该G-RNTI和/或G-CS-RNTI加扰的PDCCH的监听受该G-RNTI和/或G-CS-RNTI对应的组播DRX的控制。需要说明的是，MTCH相关的数据的传输会影响组播DRX。另外，由于MTCH相关的数据的重传可能会通过C-RNTI加扰的PDCCH进行调度传输或通过CS-RNTI加扰的PDCCH进行调度传输，所以MTCH相关的数据的传输也可能会影响单播DRX。A multicast service corresponds to a G-RNTI and/or a G-CS-RNTI. A multicast service may correspond to one or more MTCHs. The data corresponding to the one or more MTCHs can be multiplexed together to form a MAC PDU. The MAC PDU can be scheduled for transmission through the PDCCH scrambled by the G-RNTI, or the MAC PDU can be transmitted on the multicast SPS resources corresponding to the G-RNTI and/or G-CS-RNTI. In addition, if the MAC PDU is scheduled for transmission through the G-RNTI scrambled PDCCH, the retransmission of the MAC PDU can be scheduled for transmission through the G-RNTI scrambled PDCCH, or it can be performed through the C-RNTI scrambled PDCCH. Schedule transfers. If the MAC PDU is transmitted on the multicast SPS resource corresponding to the G-RNTI and/or G-CS-RNTI, the retransmission of the MAC PDU can be scheduled and transmitted through the PDCCH scrambled by the G-CS-RNTI, or it can Scheduled transmission via CS-RNTI scrambled PDCCH. And the monitoring of the PDCCH scrambled by the G-RNTI and/or G-CS-RNTI is controlled by the multicast DRX corresponding to the G-RNTI and/or G-CS-RNTI. It should be noted that the transmission of MTCH-related data will affect multicast DRX. In addition, since the retransmission of MTCH-related data may be scheduled transmission through C-RNTI scrambled PDCCH or CS-RNTI scrambled PDCCH, the transmission of MTCH-related data may also affect unicast DRX. .
一个组播业务也可能对应一个或多个DTCH，不同组播业务对应的DTCH和单播业务对应的DTCH对应的数据可以复用到一起组成MAC PDU，该MAC PDU可以通过C-RNTI加扰的PDCCH进行调度传输，或，该MAC PDU可以在单播SPS资源上传输。另外，若该MAC PDU通过该C-RNTI加扰的PDCCH进行调度传输，该MAC PDU的重传可以通过该C-RNTI加扰的PDCCH进行调度传输。若该MAC PDU在单播SPS资源上传输，该MAC PDU的重传可以通过CS-RNTI加扰的PDCCH进行调度传输。且该C-RNTI或CS-RNTI加扰的PDCCH的监听受单播DRX的控制。需要说明的是，DTCH相关的数据的传输会影响单播DRX。A multicast service may also correspond to one or more DTCHs. The data corresponding to the DTCH corresponding to different multicast services and the DTCH corresponding to the unicast service can be multiplexed together to form a MAC PDU. The MAC PDU can be scrambled by C-RNTI. PDCCH for scheduled transmission, or the MAC PDU can be transmitted on unicast SPS resources. In addition, if the MAC PDU is scheduled for transmission through the PDCCH scrambled by the C-RNTI, the retransmission of the MAC PDU can be scheduled for transmission through the PDCCH scrambled by the C-RNTI. If the MAC PDU is transmitted on unicast SPS resources, the retransmission of the MAC PDU can be scheduled and transmitted through the CS-RNTI scrambled PDCCH. And the monitoring of the PDCCH scrambled by the C-RNTI or CS-RNTI is controlled by unicast DRX. It should be noted that the transmission of DTCH-related data will affect unicast DRX.
6、HARQ。6.HARQ.
6.1、HARQ进程。6.1. HARQ process.
单播和组播之间可以共享HARQ进程。例如，一个HARQ进程可能一会/第一时间给组播用，一会/第二时间给单播用；或者说，一个HARQ进程一会/第一时间和组播关联，一会/第二时间和单播关联。HARQ processes can be shared between unicast and multicast. For example, a HARQ process may be used for multicast at the first time and unicast at the second time; or in other words, a HARQ process may be associated with multicast at the first time and be used for unicast at the second time. Time and unicast association.
组播1和组播2之间可以共享HARQ进程。例如，一个HARQ进程可能一会/第一时间给组播2用，一会/第二时间给组播1用；或者说，一个HARQ进程一会/第一时间和组播2关联，一会/第二时间和组播1关联。The HARQ process can be shared between multicast 1 and multicast 2. For example, a HARQ process may be used for multicast 2 for a while/first time, and for multicast 1 for a while/second time; or in other words, a HARQ process may be associated with multicast 2 for a while/first time, and then be used for multicast 1 for a while/second time. /Associated with multicast 1 at the second time.
单播和不同的组播之间可以共享HARQ进程。例如，一个HARQ进程可能一会/第一时间给组播2用，一会/第二时间给组播1用，一会/第三时间给单播用；或者说，一个HARQ进程一会/第一时间和组播2关联，一会/第二时间和组播1关联，一会/第三时间和单播关联。HARQ processes can be shared between unicast and different multicasts. For example, a HARQ process may be used for multicast 2 for a while/first time, multicast 1 for a while/second time, and unicast for a while/third time; or in other words, a HARQ process may be used for multicast 2 for a while/second time. The first time is associated with multicast 2, the first/second time is associated with multicast 1, and the first/third time is associated with unicast.
6.2、HARQ重传。6.2, HARQ retransmission.
对于组播的PTM传输(例如，初传采用PTM传输方式进行传输)，网络设备可通过PTP传输方式或PTM传输方式进行HARQ重传。例如，网络设备采用G-RNTI加扰的DCI调度G-RNTI加扰的数据进行初传，网络设备可以采用C-RNTI加扰的DCI调度C-RNTI加扰的数据进行HARQ重传，和/或，网络设备也可以采用G-RNTI加扰的DCI调度G-RNTI加扰的数据进行HARQ重传。其中，无论采用哪种HARQ重传，HARQ重传对应的HARQ process ID和NDI(或者说，HARQ重传对应的DCI中的HARQ process ID和NDI)与新传对应的相同。For multicast PTM transmission (for example, the initial transmission is transmitted using PTM transmission mode), the network device can perform HARQ retransmission through PTP transmission mode or PTM transmission mode. For example, the network device uses G-RNTI scrambled DCI to schedule G-RNTI scrambled data for initial transmission, and the network device can use C-RNTI scrambled DCI to schedule C-RNTI scrambled data for HARQ retransmission, and/ Alternatively, the network device may also use G-RNTI scrambled DCI to schedule G-RNTI scrambled data for HARQ retransmission. Among them, no matter which HARQ retransmission is used, the HARQ process ID and NDI corresponding to the HARQ retransmission (or, in other words, the HARQ process ID and NDI in the DCI corresponding to the HARQ retransmission) are the same as those corresponding to the new transmission.
对于组播的配置传输(例如，初传采用配置传输方式进行传输)，网络设备可通过PTP传输方式或PTM传输方式进行HARQ重传。例如，网络设备在组播SPS资源上进行初传，网络设备可以采用CS-RNTI加扰的DCI调度CS-RNTI加扰的数据进行HARQ重传，和/或，网络设备也可以采用G-CS-RNTI加扰的DCI调度G-CS-RNTI加扰的数据进行HARQ重传。例如，其中，无论采用哪种HARQ重传，HARQ重传对应的HARQ process ID和NDI(或者说，HARQ重传对应的DCI中的HARQ process ID和NDI)与新传对应的相同。For multicast configuration transmission (for example, the initial transmission is transmitted using the configuration transmission method), the network device can perform HARQ retransmission through the PTP transmission method or the PTM transmission method. For example, the network device performs initial transmission on multicast SPS resources. The network device can use CS-RNTI scrambled DCI to schedule CS-RNTI scrambled data for HARQ retransmission, and/or the network device can also use G-CS. -RNTI scrambled DCI schedules G-CS-RNTI scrambled data for HARQ retransmission. For example, no matter which HARQ retransmission is used, the HARQ process ID and NDI corresponding to the HARQ retransmission (or, in other words, the HARQ process ID and NDI in the DCI corresponding to the HARQ retransmission) are the same as those corresponding to the new transmission.
6.3、新传/重传判断。6.3. New transmission/retransmission judgment.
单播传输中，终端设备可通过相同HARQ进程或HARQ process ID对应的新数据指示(new data indication，NDI)是否翻转来判断本次传输是新传还是重传。例如，针对相同的HARQ process，如果本次传输的NDI与前一次传输的NDI相比发生了翻转，终端设备确定本次传输是新传；如果未发生翻转，终端设备确定本次传输为重传。 In unicast transmission, the terminal device can determine whether the transmission is a new transmission or a retransmission by whether the new data indication (NDI) corresponding to the same HARQ process or HARQ process ID is flipped. For example, for the same HARQ process, if the NDI of this transmission is flipped compared with the NDI of the previous transmission, the terminal device determines that this transmission is a new transmission; if no flipping occurs, the terminal device determines that this transmission is a retransmission. .
针对相同的HARQ进程或HARQ process ID，终端设备在下列表1所示的任一项或多项情况下会将本次传输视为新传：For the same HARQ process or HARQ process ID, the terminal device will treat this transmission as a new transmission in any one or more of the situations shown in Table 1 below:
(1)前一次传输采用组播配置传输方式传输(即MBS SPS)，本次传输采用C-RNTI加扰的DCI动态调度传输(即Dynamic scheduling via C-RNTI)；(1) The previous transmission used multicast configuration transmission (MBS SPS), and this transmission uses DCI dynamic scheduling transmission scrambled by C-RNTI (Dynamic scheduling via C-RNTI);
(2)前一次传输采用G-CS-RNTI加扰的DCI动态调度传输(即Dynamic scheduling via G-CS-RNTI)，本次传输采用C-RNTI加扰的DCI动态调度传输(即Dynamic scheduling via C-RNTI)；(2) The previous transmission used G-CS-RNTI scrambled DCI dynamic scheduling transmission (i.e. Dynamic scheduling via G-CS-RNTI), and this transmission used C-RNTI scrambled DCI dynamic scheduling transmission (i.e. Dynamic scheduling via C-RNTI);
(3)前一次传输采用单播配置传输方式传输(即SPS)，本次传输采用G-RNTI加扰的DCI动态调度传输(即Dynamic scheduling via G-RNTI)；(3) The previous transmission used unicast configuration transmission (i.e. SPS), and this transmission uses G-RNTI scrambled DCI dynamic scheduling transmission (i.e. Dynamic scheduling via G-RNTI);
(4)前一次传输采用组播配置传输方式传输(即MBS SPS)，本次传输采用G-RNTI加扰的DCI动态调度传输(即Dynamic scheduling via G-RNTI)；(4) The previous transmission used multicast configuration transmission (i.e. MBS SPS), and this transmission uses G-RNTI scrambled DCI dynamic scheduling transmission (i.e. Dynamic scheduling via G-RNTI);
(5)前一次传输采用其他G-RNTI加扰的DCI动态调度传输(Dynamic scheduling via other G-RNTI)，本次传输采用G-RNTI加扰的DCI动态调度传输(即Dynamic scheduling via G-RNTI)；(5) The previous transmission used DCI dynamic scheduling transmission scrambled by other G-RNTI (Dynamic scheduling via other G-RNTI). This transmission uses DCI dynamic scheduling transmission scrambled by G-RNTI (i.e. Dynamic scheduling via G-RNTI). );
(6)前一次传输采用G-CS-RNTI加扰的DCI动态调度传输(Dynamic scheduling via G-CS-RNTI)，本次传输采用G-RNTI加扰的DCI动态调度传输(即Dynamic scheduling via G-RNTI)；(6) The previous transmission used G-CS-RNTI scrambled DCI dynamic scheduling transmission (Dynamic scheduling via G-CS-RNTI), and this transmission used G-RNTI scrambled DCI dynamic scheduling transmission (i.e. Dynamic scheduling via G -RNTI);
(7)前一次传输采用C-RNTI加扰的DCI动态调度传输(Dynamic scheduling via C-RNTI)，本次传输采用G-RNTI加扰的DCI动态调度传输(即Dynamic scheduling via G-RNTI)。(7) The previous transmission used DCI dynamic scheduling transmission scrambled by C-RNTI (Dynamic scheduling via C-RNTI), and this transmission used DCI dynamic scheduling transmission scrambled by G-RNTI (i.e. Dynamic scheduling via G-RNTI).
表1
Table 1
结合上述各传输方式和HARQ重传可知，终端设备接收到C-RNTI或CS-RNTI加扰的DCI，该DCI调度的数据可能与MTCH相关，也可能与DTCH相关。Combining the above transmission methods and HARQ retransmission, it can be seen that the terminal equipment receives DCI scrambled by C-RNTI or CS-RNTI, and the data scheduled by the DCI may be related to MTCH or DTCH.
示例性的，请参见图4a，图4a为单播传输示意图。如图4a所示，网络设备传输数据#a时，发送了4次调度数据#a的DCI，可理解为网络设备进行了数据#a的初传和3次重传。网络设备传输数据#a时，方框内的0代表调度数据#a的DCI中的NDI为0。网络设备传输数据#b时，终端设备未接收到调度数据#b初传的DCI。然后，网络设备进行数据#b的重传，终端设备接收到调度数据#b重传的第一个DCI后，由于本次接收的DCI中的NDI相比于前次接收的DCI(调度数据#a重传的DCI)中的NDI已经翻转，因此终端设备会将数据#b的这次重传视为数据#b的初传。所以终端设备会启动或重启与单播关联的DRX对应的drx-InactivityTimer，从而终端设备后续还可继续接收以单播方式传输的DCI。For example, please refer to Figure 4a, which is a schematic diagram of unicast transmission. As shown in Figure 4a, when the network device transmits data #a, it sends the DCI of scheduled data #a 4 times, which can be understood as the network device performs the initial transmission and 3 retransmissions of data #a. When the network device transmits data #a, the 0 in the box represents that the NDI in the DCI of the scheduled data #a is 0. When the network device transmits data #b, the terminal device does not receive the DCI initially transmitted by the scheduled data #b. Then, the network device retransmits the data #b. After the terminal device receives the first DCI retransmitted by the scheduled data #b, since the NDI in the DCI received this time is compared with the previously received DCI (scheduling data# The NDI in the retransmitted DCI) has been flipped, so the terminal device will regard this retransmission of data #b as the initial transmission of data #b. Therefore, the terminal device will start or restart the drx-InactivityTimer corresponding to the DRX associated with unicast, so that the terminal device can continue to receive DCI transmitted in unicast mode.
可见，单播传输中，如果终端设备丢失了调度某一数据初传的DCI，接收到后续调度该数据重传的DCI，终端设备可能会将该重传视为初传，会启动或重启与单播关联的DRX对应的drx-InactivityTimer，延长单播关联的DRX的激活时间。从而，终端设备后续还可接收到以单播方式传输的DCI。It can be seen that during unicast transmission, if the terminal device loses the DCI that schedules the initial transmission of a certain data and receives the subsequent DCI that schedules the retransmission of the data, the terminal device may regard the retransmission as the initial transmission and start or restart the communication with The drx-InactivityTimer corresponding to the unicast-associated DRX extends the activation time of the unicast-associated DRX. Therefore, the terminal device can subsequently receive DCI transmitted in unicast mode.
然而，MBS中，针对一个组播业务的传输，如果终端设备未接收到通过PTM传输方式进行初传的DCI，且网络设备采用PTP传输方式进行HARQ重传，根据HARQ重传对应的DCI中的信息(例如，DCI中的HARQ process ID和NDI)，终端设备可能无法正确确定该DCI调度的数据是针对单播传输的，还是针对该组播业务的组播MTCH相关传输的，还是针对其他组播业务的组播MTCH相关传输的。终端设备可能会将该次传输误判为是针对单播传输的或者是针对其他组播业务的组播MTCH相关传输的，终端设备将不会启动或重启与组播关联的DRX对应的drx-InactivityTimerPTM(例如，该组播业务的)，该终端设备与接收该组播业务的其他终端设备以及网络设备相比，组播关联的DRX的激活时间将不对齐，且该终端设备与接收该组播业务的其他终端设备以及网络设备相比，可能会更早的进入睡眠状态，可能导致该终端设备无法接收到网络设备发送的后续G-RNTI或G-CS-RNTI加扰的PDCCH(或，网络设备发送的后续PTM传输)，影响传输可靠性或增加传输时延，也可能导致该终端设备无法上报CSI和SRS，无法辅助基站的组播调度，影响***性能。另外，终端设备可能会将该次传输误判为一次单播新传，终端设备可能 会启动或重启与单播关联的DRX对应的drx-InactivityTimer，可能会导致终端设备费电，可能导致终端设备不必要的上报CSI和SRS。However, in MBS, for the transmission of a multicast service, if the terminal device does not receive the DCI initially transmitted through the PTM transmission method, and the network device uses the PTP transmission method for HARQ retransmission, the corresponding DCI will be retransmitted according to the HARQ transmission method. Information (for example, HARQ process ID and NDI in DCI), the terminal device may not be able to correctly determine whether the data scheduled by the DCI is for unicast transmission, multicast MTCH-related transmission of the multicast service, or other groups. Multicast MTCH related transmission of broadcast services. The terminal device may misjudge the transmission as being for unicast transmission or multicast MTCH-related transmission for other multicast services. The terminal device will not start or restart the drx-corresponding DRX associated with the multicast. InactivityTimerPTM (for example, for the multicast service), the activation time of the DRX associated with the multicast will not be aligned between the terminal device and other terminal devices and network devices that receive the multicast service, and the terminal device will not be aligned with the group receiving the multicast service. Compared with other terminal equipment and network equipment broadcasting services, the terminal equipment may enter the sleep state earlier, which may cause the terminal equipment to be unable to receive the subsequent G-RNTI or G-CS-RNTI scrambled PDCCH (or, Subsequent PTM transmissions sent by network equipment), affecting transmission reliability or increasing transmission delay, may also cause the terminal equipment to be unable to report CSI and SRS, and cannot assist the base station in multicast scheduling, affecting system performance. In addition, the terminal device may misjudge the transmission as a new unicast transmission, and the terminal device may The drx-InactivityTimer corresponding to the DRX associated with unicast will be started or restarted, which may cause the terminal device to consume power and may cause the terminal device to report CSI and SRS unnecessarily.
例如，如图4b所示，终端设备未接收到通过PTM传输方式(例如，G-RNTI加扰的DCI进行调度)传输的数据1的初传的DCI，且网络设备采用PTP传输方式(例如，C-RNTI加扰的DCI进行调度)进行数据1的重传，终端设备接收到了该重传对应的DCI，且DCI中的HARQ process ID＝1，NDI＝1。终端设备接收到的针对相同HARQ进程的前一次传输对应的是C-RNTI，且NDI为0。由于NDI发生了翻转，那么，终端设备会将通过PTP传输方式进行数据1的重传的传输误判为单播新传，终端设备将会启动或重启与单播关联的DRX对应的drx-InactivityTimer。实际上，通过PTP传输方式进行数据1的重传的DCI调度的是组播MTCH相关传输的重传。For example, as shown in Figure 4b, the terminal device does not receive the initially transmitted DCI of data 1 transmitted through the PTM transmission mode (for example, G-RNTI scrambled DCI for scheduling), and the network device adopts the PTP transmission mode (for example, G-RNTI scrambled DCI for scheduling) C-RNTI scrambled DCI is scheduled) to retransmit data 1. The terminal device receives the DCI corresponding to the retransmission, and the HARQ process ID=1 and NDI=1 in the DCI. The previous transmission received by the terminal device for the same HARQ process corresponds to C-RNTI, and the NDI is 0. Since the NDI is flipped, the terminal device will misjudge the retransmission of data 1 through PTP transmission as a new unicast transmission, and the terminal device will start or restart the drx-InactivityTimer corresponding to the DRX associated with the unicast. . In fact, the DCI schedule for retransmission of data 1 through PTP transmission mode is the retransmission of multicast MTCH related transmission.
如图5所示，网络设备与多个终端设备进行MBS传输时，如果终端设备#1未接收到通过PTM传输方式传输的数据1的初传的DCI，后续网络设备通过PTP传输方式为终端设备#1进行数据1的重传，即网络设备通过PTP传输方式向终端设备#1发送数据1的重传的DCI。该情况下，由于终端设备#1未接收到通过PTM传输方式传输的数据1的初传的DCI，因此终端设备#1不会启动或重启与组播关联的drx-InactivityTimerPTM，从而无法延长组播关联的DRX的激活时间，进而终端设备#1后续可能无法接收网络设备通过PTM传输方式传输的其他或后续数据的DCI。但是，组内其他终端设备接收到PTM传输方式传输的数据1的初传的DCI，从而该组内其他终端设备会启动或重启与组播关联的drx-InactivityTimerPTM，该其他终端设备后续可接收通过PTM传输方式传输的其他数据的DCI。As shown in Figure 5, when a network device performs MBS transmission with multiple terminal devices, if terminal device #1 does not receive the DCI of the initial transmission of data 1 transmitted through PTM transmission mode, subsequent network devices use PTP transmission mode as the terminal device #1 retransmits data 1, that is, the network device sends the retransmitted DCI of data 1 to terminal device #1 through PTP transmission. In this case, because terminal device #1 did not receive the DCI of the initial transmission of data 1 transmitted through the PTM transmission method, terminal device #1 will not start or restart the drx-InactivityTimerPTM associated with the multicast, and thus the multicast cannot be extended. The activation time of the associated DRX, and thus terminal device #1 may subsequently be unable to receive DCI of other or subsequent data transmitted by the network device through the PTM transmission method. However, other terminal devices in the group receive the DCI of the initial transmission of data 1 transmitted in the PTM transmission mode, so other terminal devices in the group will start or restart the drx-InactivityTimerPTM associated with the multicast, and the other terminal devices can subsequently receive the DCI for other data transmitted by PTM transmission method.
另外，如果终端设备#1将网络设备通过PTM传输方式传输的数据1的初传误判为是单播新传，则终端设备#1会启动或重启与单播关联的DRX对应的drx-InactivityTimer。然而，网络设备并不会启动或重启与单播关联的DRX对应的drx-InactivityTimer，会给终端设备#1带来额外的功耗。In addition, if terminal device #1 misjudges the initial transmission of data 1 transmitted by the network device through PTM transmission as a new transmission of unicast, terminal device #1 will start or restart the drx-InactivityTimer corresponding to the DRX associated with unicast. . However, the network device will not start or restart the drx-InactivityTimer corresponding to the DRX associated with the unicast, which will bring additional power consumption to the terminal device #1.
例如，如图6所示，网络设备采用单播动态传输方式进行数据#a的初传和重传，且调度数据#a初传和重传的DCI中的NDI均为1。网络设备调度数据#b初传和重传的DCI中的NDI均为0。网络设备采用PTM传输方式进行数据#b的初传，但终端设备未接收到调度数据#b初传的DCI。然后网络设备采用PTP传输方式进行数据#b的重传。终端设备接收到第一个调度数据#b重传的DCI，且该DCI中的NDI相比于前一次接收到的DCI(调度数据#a重传的DCI)中的NDI，发生了翻转。那么，终端设备会将该数据#b的重传误判为单播新传，从而启动或重启与单播关联的DRX对应的drx-InactivityTimer，延长单播关联的DRX的激活时间，会给终端设备带来额外的功耗。For example, as shown in Figure 6, the network device uses the unicast dynamic transmission mode to perform initial transmission and retransmission of data #a, and the NDI in the DCI of the initial transmission and retransmission of scheduled data #a is both 1. The NDI in the DCI of the initial transmission and retransmission of network equipment scheduling data #b is both 0. The network device uses the PTM transmission method for the initial transmission of data #b, but the terminal device does not receive the DCI scheduled for the initial transmission of data #b. Then the network device uses PTP transmission mode to retransmit data #b. The terminal device receives the first DCI for retransmission of scheduled data #b, and the NDI in this DCI is inverted compared with the NDI in the previously received DCI (DCI for retransmission of scheduled data #a). Then, the terminal device will misjudge the retransmission of the data #b as a new unicast transmission, thereby starting or restarting the drx-InactivityTimer corresponding to the DRX associated with the unicast, extending the activation time of the DRX associated with the unicast, and causing problems to the terminal. The device brings additional power consumption.
本申请公开的实施例将围绕包括多个设备、组件、模块等的***来呈现本申请的各个方面、实施例或特征。应当理解和明白的是，各个***可以包括另外的设备、组件、模块等，并且/或者可以并不包括结合附图讨论的所有设备、组件、模块等。此外，还可以使用这些方案的组合。The disclosed embodiments of the present application will present various aspects, embodiments or features of the present application around a system including a plurality of devices, components, modules, etc. It should be understood and appreciated that various systems may include additional devices, components, modules, etc., and/or may not include all devices, components, modules, etc. discussed in connection with the figures. Additionally, a combination of these scenarios can be used.
本申请中，“未接收到”可以包括/理解为：未检测到。In this application, "not received" may include/understood as: not detected.
在本申请中，组播方式也可以包括/替换为多播方式或广播方式。本申请皆以组播方式为例进行说明。In this application, multicast mode may also include/replace with multicast mode or broadcast mode. This application takes the multicast method as an example for explanation.
在本申请中，DCI可以替换为PDCCH，PDCCH可以替换为DCI。In this application, DCI can be replaced by PDCCH, and PDCCH can be replaced by DCI.
在本申请中，数据可以替换为PDSCH，PDSCH可以替换为数据。In this application, data can be replaced by PDSCH, and PDSCH can be replaced by data.
在本申请中，RNTI加扰PDCCH/DCI/控制信息可以理解为：RNTI加扰PDCCH/DCI/控制信息的循环冗余校验(cyclic redundancy check，CRC)，或，PDCCH/DCI/控制信息的CRC被RNTI加扰。In this application, RNTI scrambled PDCCH/DCI/control information can be understood as: RNTI scrambled PDCCH/DCI/control information cyclic redundancy check (cyclic redundancy check, CRC), or, PDCCH/DCI/control information The CRC is scrambled by RNTI.
本申请实施例中，关联的可以理解为：对应的。In the embodiment of this application, related can be understood as: corresponding.
本申请中，第一组播可以理解为第一组播业务。In this application, the first multicast can be understood as the first multicast service.
本申请中，用于指示终端设备接收重传(例如，数据/DCI)前等待的时长可以包括/理解为以下任一项或多项：用于指示终端设备接收到/接收重传(例如，数据/DCI)(例如，DL数据)前等待的时长(例如，最小时长)，用于指示终端设备期望接收到/接收重传(例如，数据/DCI)(例如，DL数据)前等待的时长(例如，最小时长)。In this application, the length of time used to instruct the terminal device to wait before receiving a retransmission (for example, data/DCI) may include/understood as any one or more of the following: used to instruct the terminal device to receive/receive a retransmission (for example, The length of time (e.g., minimum duration) to wait before receiving/receiving a retransmission (e.g., data/DCI) (e.g., DL data). (e.g. minimum hour length).
本申请中，用于指示终端设备接收重传(例如，数据/DCI)的时长可以包括/理解为：用于指示终端设备接收到/接收重传(例如，数据/DCI)(例如，DL数据或SL数据)的时长(例如，最大时长)。In this application, the duration used to indicate that the terminal device receives a retransmission (for example, data/DCI) may include/be understood as: used to indicate that the terminal device receives/receives a retransmission (for example, data/DCI) (for example, DL data or SL data) (e.g., maximum duration).
在本申请中，初传可以替换为新传。In this application, the initial transmission can be replaced by a new transmission.
本申请中，启动可以理解为启动或重启。 In this application, startup can be understood as starting or restarting.
本申请中，未启动或重启可以理解为未启动或未重启。In this application, not started or restarted can be understood as not started or restarted.
本申请中，NDI翻转可以理解为NDI不同，NDI未翻转可以理解为NDI相同。In this application, NDI flipping can be understood as different NDI, and non-inverted NDI can be understood as same NDI.
需要说明的是，本申请实施例以终端设备为例进行说明，也可以将终端设备替换为终端设备的MAC实体或终端设备的其他实体或其他设备，本申请不限定。It should be noted that the embodiment of the present application takes a terminal device as an example for description. The terminal device may also be replaced by the MAC entity of the terminal device or other entities of the terminal device or other devices, which is not limited by this application.
三.通信方法100。3. Communication methods 100.
本申请实施例提出一种通信方法100，图7是该通信方法100的流程示意图。该通信方法100从终端设备侧的角度进行阐述。该通信方法100包括但不限于以下步骤：This embodiment of the present application proposes a communication method 100. Figure 7 is a schematic flowchart of the communication method 100. The communication method 100 is explained from the perspective of the terminal device side. The communication method 100 includes but is not limited to the following steps:
S101.终端设备接收以单播方式传输的第二下行控制信息DCI。S101. The terminal device receives the second downlink control information DCI transmitted in unicast mode.
以单播方式传输的第二DCI，可以包括/理解为：第二RNTI加扰的第二DCI，或，与第二RNTI相关联的第二DCI。The second DCI transmitted in unicast mode may include/understand as: the second DCI scrambled by the second RNTI, or the second DCI associated with the second RNTI.
第二RNTI可以用于以下任一种或任多种：用于单播，用于调度动态资源，用于动态资源的重传资源，用于激活配置资源、用于重激活配置资源、用于去激活配置资源，用于调度配置资源的重传资源，用于加扰(例如，用于加扰PDCCH或PDSCH)。The second RNTI can be used for any one or more of the following: for unicast, for scheduling dynamic resources, for retransmission of dynamic resources, for activating configuration resources, for reactivating configuration resources, for Deactivate configuration resources, which are used to schedule retransmission resources of configuration resources for scrambling (for example, for scrambling PDCCH or PDSCH).
示例性的，第二RNTI可以包括/为C-RNTI，和/或，CS-RNTI。For example, the second RNTI may include/be C-RNTI and/or CS-RNTI.
第二DCI用于调度第一数据(例如，以单播方式传输的第一数据)。以单播方式传输的第一数据可以包括/理解为：第二RNTI加扰的第一数据，或，与第二RNTI相关联的第一数据。The second DCI is used to schedule the first data (eg, the first data transmitted in a unicast manner). The first data transmitted in a unicast manner may include/be understood as: the first data scrambled by the second RNTI, or the first data associated with the second RNTI.
第二DCI与第一HARQ process ID(或第一HARQ进程)和第一NDI相关联。例如，第二DCI中包括第一HARQ process ID和第一NDI。The second DCI is associated with the first HARQ process ID (or first HARQ process) and the first NDI. For example, the second DCI includes the first HARQ process ID and the first NDI.
第一数据与第一HARQ process ID(或第一HARQ进程)和第一NDI相关联。The first data is associated with a first HARQ process ID (or first HARQ process) and a first NDI.
S102.终端设备接收第一数据。S102. The terminal device receives the first data.
可选的，终端设备接收第一数据，可以包括：终端设备成功解码第一数据。Optionally, the terminal device receiving the first data may include: the terminal device successfully decodes the first data.
S103.满足第一条件，终端设备执行S103-1、S103-2中的任一项或多项。S103. When the first condition is met, the terminal device executes any one or more of S103-1 and S103-2.
第一条件包括：第一数据包括第一逻辑信道标识LCID，且，终端设备未接收到第一DCI。The first condition includes: the first data includes the first logical channel identifier LCID, and the terminal device does not receive the first DCI.
第一DCI是通过组播方式传输的。The first DCI is transmitted through multicast.
其中，第一LCID为第一组播广播服务业务MTCH的标识。第一LCID与第一组播业务相关联。第一LCID与MTCH相关联。The first LCID is the identifier of the first multicast broadcast service service MTCH. The first LCID is associated with the first multicast service. The first LCID is associated with the MTCH.
第一数据包括/为第一MAC PDU。The first data includes/is the first MAC PDU.
第一DCI是通过组播方式传输的，可以包括/理解为：第一RNTI加扰的第一DCI，或，与第一RNTI相关联的第一DCI。The first DCI is transmitted in a multicast manner and may include/be understood as: the first DCI scrambled by the first RNTI, or the first DCI associated with the first RNTI.
第一RNTI可以用于以下任一种或任多种：用于组播，用于调度动态资源，用于动态资源的重传资源，用于激活配置资源、用于重激活配置资源、用于去激活配置资源，用于调度配置资源的重传资源，用于加扰(例如，用于加扰PDCCH或PDSCH)。The first RNTI can be used for any one or more of the following: for multicast, for scheduling dynamic resources, for retransmission of dynamic resources, for activating configuration resources, for reactivating configuration resources, for Deactivate configuration resources, which are used to schedule retransmission resources of configuration resources for scrambling (for example, for scrambling PDCCH or PDSCH).
示例性的，第一RNTI可以包括/为G-RNTI，和/或，G-CS-RNTI。例如，第一RNTI包括第一G-RNTI，和/或，第一G-CS-RNTI。例如，第一组播业务与第一G-RNTI和/或第一G-CS-RNTI相关联。For example, the first RNTI may include/be G-RNTI and/or G-CS-RNTI. For example, the first RNTI includes the first G-RNTI and/or the first G-CS-RNTI. For example, the first multicast service is associated with the first G-RNTI and/or the first G-CS-RNTI.
一种可能的实现，第一DCI用于调度第一数据(例如，以组播方式传输的第一数据)。以组播方式传输的第一数据可以包括/理解为：第一RNTI加扰的第一数据，或，与第一RNTI相关联的第一数据。In one possible implementation, the first DCI is used to schedule first data (for example, first data transmitted in a multicast manner). The first data transmitted in a multicast manner may include/understood as: first data scrambled by the first RNTI, or first data associated with the first RNTI.
另一种可能的实现，第一DCI用于激活组播配置资源(例如，第一组播配置资源)。例如，第一组播配置资源与第一G-RNTI、第一G-CS-RNTI、第一组播业务中的任一项或多项相关联。例如，第一数据在第一组播配置资源上传输。In another possible implementation, the first DCI is used to activate multicast configuration resources (for example, the first multicast configuration resource). For example, the first multicast configuration resource is associated with any one or more of the first G-RNTI, the first G-CS-RNTI, and the first multicast service. For example, the first data is transmitted on the first multicast configuration resource.
示例性的，第一RNTI为G-RNTI，第二RNTI为C-RNTI。For example, the first RNTI is G-RNTI, and the second RNTI is C-RNTI.
示例性的，第一RNTI为G-CS-RNTI，第二RNTI为CS-RNTI。For example, the first RNTI is G-CS-RNTI, and the second RNTI is CS-RNTI.
第一DCI与第一HARQ process ID(或第一HARQ进程)和第一NDI相关联。例如，第一DCI中包括第一HARQ process ID和第一NDI。The first DCI is associated with the first HARQ process ID (or first HARQ process) and the first NDI. For example, the first DCI includes the first HARQ process ID and the first NDI.
第一DCI可能包括一个或多个DCI。未接收到第一DCI，可以包括/理解为：未接收到一个DCI(例如，第一DCI)，或者，未接收到多个DCI(例如，第一DCI#1和第一DCI#2)。例如，网络设备可能发送了第一DCI#1，第一DCI#1用于调度第一数据(例如，以组播方式传输的第一数据)，终端设备未接收 到该第一DCI#1；网络设备可能还发送了第一DCI#2，第一DCI#2用于调度第一数据(例如，以组播方式传输的第一数据)，终端设备也未接收到第一DCI#2。The first DCI may include one or more DCIs. Not receiving the first DCI may include/understood as: not receiving one DCI (for example, the first DCI), or not receiving multiple DCIs (for example, the first DCI#1 and the first DCI#2). For example, the network device may have sent the first DCI#1, which is used to schedule the first data (for example, the first data transmitted in a multicast mode), but the terminal device has not received it. to the first DCI#1; the network device may have also sent the first DCI#2, which is used to schedule the first data (for example, the first data transmitted in multicast mode), and the terminal device has not received it. to the first DCI#2.
可选的，未接收到第一DCI可以包括：未接收到通过组播方式传输的、用于调度第一数据(例如，以组播方式传输的第一数据)的DCI。例如，未接收到第一DCI可以包括：未接收到通过组播方式传输的、用于调度第一数据(例如，以组播方式传输的第一数据)的所有/任一个DCI。Optionally, not receiving the first DCI may include: not receiving the DCI used to schedule the first data (for example, the first data transmitted in the multicast mode) transmitted in a multicast manner. For example, not receiving the first DCI may include: not receiving all/any DCI used for scheduling the first data (eg, first data transmitted in a multicast manner) transmitted in a multicast manner.
通过组播方式传输的DCI，可以包括/理解为：第一RNTI加扰的DCI，或，与第一RNTI相关联的DCI。The DCI transmitted through multicast mode may include/be understood as: DCI scrambled by the first RNTI, or DCI associated with the first RNTI.
可以理解的是，MTCH和DTCH共享LCID空间，但MTCH的LCID值和DTCH的LCID值不相同。也就是说，MTCH的LCID值和DTCH的LCID值在同一个范围内选取，但MTCH的LCID值和DTCH的LCID值不相同。因此，终端设备可根据第一LCID确定第一LCID对应的是MTCH。或者，终端设备可根据第一LCID确定第一数据对应的是MTCH或组播或哪个组播业务或哪个G-RNTI(或G-CS-RNTI)。It can be understood that MTCH and DTCH share the LCID space, but the LCID value of MTCH and the LCID value of DTCH are different. In other words, the LCID value of MTCH and the LCID value of DTCH are selected within the same range, but the LCID value of MTCH and the LCID value of DTCH are different. Therefore, the terminal device can determine according to the first LCID that the first LCID corresponds to the MTCH. Alternatively, the terminal device may determine, according to the first LCID, whether the first data corresponds to MTCH or multicast, or which multicast service or which G-RNTI (or G-CS-RNTI).
第一数据包括第一MTCH的标识，说明第一数据对应的是MTCH，或者，说明第一数据是针对组播MTCH相关传输的，或者，说明第一数据与第一组播业务、第一G-RNTI、第一G-CS-RNTI中的任一项或多项相关联。The first data includes the identification of the first MTCH, indicating that the first data corresponds to the MTCH, or indicating that the first data is for multicast MTCH related transmission, or indicating that the first data is related to the first multicast service, the first G -RNTI, any one or more of the first G-CS-RNTI are associated.
可选的，第一LCID与第一RNTI和/或第一组播业务相关联。Optionally, the first LCID is associated with the first RNTI and/or the first multicast service.
可选的，组播关联的DRX与第一RNTI和/或第一组播业务相关联。例如，组播关联的DRX包括：与第一RNTI关联的组播关联的DRX，或，与第一RNTI关联的DRX。Optionally, the multicast-associated DRX is associated with the first RNTI and/or the first multicast service. For example, the multicast-associated DRX includes: the multicast-associated DRX associated with the first RNTI, or the DRX associated with the first RNTI.
S103-1.终端设备控制组播关联的DRX处于激活时间。S103-1. The DRX associated with multicast controlled by the terminal device is in the activation time.
例如，终端设备控制组播关联的DRX处于激活时间，可理解为/包括以下任一项或多项：使得组播关联的DRX处于激活时间；使得终端设备监听第一组播业务或第一RNTI对应的PDCCH；扩展/延长组播关联的DRX的激活时间。For example, the terminal device controlling the multicast associated DRX to be at the activation time can be understood as/including any one or more of the following: causing the multicast associated DRX to be at the activation time; causing the terminal device to monitor the first multicast service or the first RNTI Corresponding PDCCH; extend/extend the activation time of multicast-associated DRX.
可选的，终端设备控制组播关联的DRX处于激活时间可以包括：终端设备启动或重启以下定时器中的一项或多项：第二定时器、第三定时器、第四定时器、第五定时器。Optionally, the terminal device controlling the DRX activation time of the multicast association may include: the terminal device starts or restarts one or more of the following timers: the second timer, the third timer, the fourth timer, the Five timers.
例如，第二定时器为与组播关联的DRX对应的非激活定时器(例如，drx-InactivityTimerPTM)。For example, the second timer is an inactivation timer corresponding to the DRX associated with the multicast (eg, drx-InactivityTimerPTM).
例如，第三定时器为与组播关联的DRX对应的持续时间定时器(例如，drx-onDurationTimerPTM)。For example, the third timer is a duration timer corresponding to the DRX associated with the multicast (eg, drx-onDurationTimerPTM).
例如，第四定时器为与组播关联的DRX对应的重传定时器(例如，drx-RetransmissionTimerDL-PTM)。For example, the fourth timer is a retransmission timer corresponding to DRX associated with multicast (for example, drx-RetransmissionTimerDL-PTM).
第五定时器可以为新定义的定时器，本申请不限制。The fifth timer may be a newly defined timer, which is not limited by this application.
例如，组播关联的DRX对应的持续时间定时器用于指示终端设备被唤醒之后等待接收控制信息(例如，DCI)的持续时间。For example, the duration timer corresponding to the multicast-associated DRX is used to indicate the duration of waiting for the terminal device to receive control information (eg, DCI) after waking up.
例如，组播关联的DRX对应的非激活定时器用于指示用于调度新传的控制信息或新传数据之后的一段时长。For example, the inactivation timer corresponding to the multicast-associated DRX is used to indicate a period of time after which the newly transmitted control information or newly transmitted data is scheduled.
例如，组播关联的DRX对应的重传定时器用于指示终端设备接收重传(例如，重传DCI、重传数据)的时长。For example, the retransmission timer corresponding to multicast-associated DRX is used to indicate the length of time for the terminal device to receive retransmissions (for example, retransmission of DCI, retransmission of data).
由上述可知，第二定时器、第三定时器、第四定时器中的一项或多项运行时，可使得与组播关联的DRX处于激活时间。It can be seen from the above that when one or more of the second timer, the third timer, and the fourth timer are run, the DRX associated with the multicast can be in the activation time.
可选的，第一条件还可以包括以下任一项或多项：Optionally, the first condition may also include any one or more of the following:
条件1：组播关联的DRX未处于激活时间，或，第二定时器未运行；Condition 1: The DRX associated with multicast is not in the activation time, or the second timer is not running;
条件2：终端设备接收到第二DCI后，第二定时器未启动或重启；或，从终端设备接收第二DCI开始，第二定时器未启动或重启；Condition 2: After the terminal device receives the second DCI, the second timer does not start or restart; or, after the terminal device receives the second DCI, the second timer does not start or restart;
条件3：终端设备接收到第三DCI后，第二定时器未启动或重启，第三DCI用于调度第一数据，第三DCI在第二DCI之前；或，从终端设备接收第三DCI开始，第二定时器未启动或重启。Condition 3: After the terminal device receives the third DCI, the second timer is not started or restarted, the third DCI is used to schedule the first data, and the third DCI is before the second DCI; or, starting from the terminal device receiving the third DCI , the second timer is not started or restarted.
可选的，组播关联的DRX未处于激活时间可以包括终端设备确定组播关联的DRX未处于激活时间。Optionally, the multicast associated DRX is not in the activation time, which may include the terminal device determining that the multicast associated DRX is not in the activation time.
第二定时器未启动或重启可以包括：第二定时器未启动或重启过。可理解的，“第二定时器未启动或重启过”并不限定第二定时器是否运行。The fact that the second timer has not been started or restarted may include: the second timer has not been started or has been restarted. It can be understood that "the second timer has not been started or restarted" does not limit whether the second timer is running.
可选的，“终端设备接收到第二DCI后，第二定时器未启动或重启；或，从终端设备接收第二DCI开始，第二定时器未启动或重启”可以包括以下一项或多项：终端设备启动或重启第二定时器后，第二定时器未启动或重启；终端设备由于第二DCI启动或重启第二定时器后，第二定时器未启动或重启；终端设备接收到第二DCI后或从终端设备接收第二DCI开始，第二定时器未由于其他传输(例如，与第一RNTI或第一组播业务相关联的、通过组播方式传输的初传)启动或重启；终端设备启动或重启第二定时器后， 第二定时器未由于其他传输(例如，与第一RNTI或第一组播业务相关联的、通过组播方式传输的初传)启动或重启；终端设备由于第二DCI启动或重启第二定时器后，第二定时器未由于其他传输(例如，与第一RNTI或第一组播业务相关联的、通过组播方式传输的初传)启动或重启。Optional, "After the terminal device receives the second DCI, the second timer is not started or restarted; or, from the time the terminal device receives the second DCI, the second timer is not started or restarted" may include one or more of the following. Item: After the terminal equipment starts or restarts the second timer, the second timer does not start or restarts; after the terminal equipment starts or restarts the second timer due to the second DCI, the second timer does not start or restarts; the terminal equipment receives After the second DCI or starting from the reception of the second DCI by the terminal device, the second timer is not started due to other transmissions (for example, an initial transmission by multicast associated with the first RNTI or the first multicast service) or Restart; after the terminal device starts or restarts the second timer, The second timer is not started or restarted due to other transmissions (for example, initial transmission associated with the first RNTI or the first multicast service and transmitted through multicast mode); the terminal device starts or restarts the second timer due to the second DCI After the timer is reached, the second timer is not started or restarted due to other transmissions (for example, an initial transmission associated with the first RNTI or the first multicast service and transmitted in a multicast manner).
可选的，“终端设备接收到第三DCI后，第二定时器未启动或重启；或，从终端设备接收第三DCI开始，第二定时器未启动或重启”可以包括以下一项或多项：终端设备启动或重启第二定时器后，第二定时器未启动或重启；终端设备由于第三DCI启动或重启第二定时器后，第二定时器未启动或重启；终端设备接收到第三DCI后或从终端设备接收第三DCI开始，第二定时器未由于其他传输(例如，与第一RNTI或第一组播业务相关联的、通过组播方式传输的初传)启动或重启；终端设备启动或重启第二定时器后，第二定时器未由于其他传输(例如，与第一RNTI或第一组播业务相关联的、通过组播方式传输的初传)启动或重启；终端设备由于第三DCI启动或重启第二定时器后，第二定时器未由于其他传输(例如，与第一RNTI或第一组播业务相关联的、通过组播方式传输的初传)启动或重启。Optional, "After the terminal device receives the third DCI, the second timer is not started or restarted; or, starting from the terminal device receiving the third DCI, the second timer is not started or restarted" may include one or more of the following. Item: After the terminal equipment starts or restarts the second timer, the second timer does not start or restarts; after the terminal equipment starts or restarts the second timer due to the third DCI, the second timer does not start or restarts; the terminal equipment receives After the third DCI or starting from the receipt of the third DCI from the terminal device, the second timer is not started due to other transmissions (for example, an initial transmission associated with the first RNTI or the first multicast service and transmitted by multicast mode) or Restart; after the terminal device starts or restarts the second timer, the second timer is not started or restarted due to other transmissions (for example, initial transmission associated with the first RNTI or the first multicast service and transmitted through multicast mode) ; After the terminal device starts or restarts the second timer due to the third DCI, the second timer is not used for other transmissions (for example, the initial transmission associated with the first RNTI or the first multicast service and transmitted through multicast mode) Start or restart.
可选的，“终端设备接收到第二DCI或第三DCI后，第二定时器未启动或重启；或，从终端设备接收第二DCI或第三DCI开始，第二定时器未启动或重启”可以包括以下一项或多项：Optional, "After the terminal device receives the second DCI or the third DCI, the second timer is not started or restarted; or, starting from the terminal device receiving the second DCI or the third DCI, the second timer is not started or restarted. ” can include one or more of the following:
(1)终端设备接收到第二DCI或第三DCI后或从终端设备接收第二DCI或第三DCI开始，到终端设备成功解码第一数据时，或，到终端设备确定满足第一条件时，或，到终端设备将/想控制组播关联的DRX处于激活时间时，第二定时器未启动或重启过；(1) After the terminal device receives the second DCI or the third DCI, or from when the terminal device receives the second DCI or the third DCI, to when the terminal device successfully decodes the first data, or when the terminal device determines that the first condition is met , or, when the terminal device will/want to control the DRX associated with multicast at the activation time, the second timer has not been started or restarted;
(2)终端设备启动或重启第二定时器后，到终端设备成功解码第一数据时，或，到终端设备确定满足第一条件时，或，到终端设备将/想控制组播关联的DRX处于激活时间时，第二定时器未启动或重启过；(2) After the terminal device starts or restarts the second timer, when the terminal device successfully decodes the first data, or when the terminal device determines that the first condition is met, or when the terminal device will/want to control the DRX associated with the multicast During the activation time, the second timer has not been started or restarted;
(3)终端设备由于第二DCI或第三DCI启动或重启第二定时器后，到终端设备成功解码第一数据时，或，到终端设备确定满足第一条件时，或，到终端设备将/想控制组播关联的DRX处于激活时间时，第二定时器未启动或重启过；(3) After the terminal device starts or restarts the second timer due to the second DCI or the third DCI, when the terminal device successfully decodes the first data, or when the terminal device determines that the first condition is met, or when the terminal device will /When the DRX associated with multicast is in the activation time, the second timer has not been started or restarted;
(4)终端设备接收到第二DCI或第三DCI后或从终端设备接收第二DCI或第三DCI开始，到终端设备成功解码第一数据时，或，到终端设备确定满足第一条件时，或，到终端设备将/想控制组播关联的DRX处于激活时间时，第二定时器未由于其他传输(例如，与第一RNTI或第一组播业务相关联的、通过组播方式传输的初传)启动或重启过；(4) After the terminal device receives the second DCI or the third DCI, or from when the terminal device receives the second DCI or the third DCI, to when the terminal device successfully decodes the first data, or when the terminal device determines that the first condition is met , or, when the terminal device will/want to control the DRX associated with the multicast at the activation time, the second timer is not due to other transmissions (for example, associated with the first RNTI or the first multicast service, transmitted through multicast The initial transmission) has been started or restarted;
(5)终端设备启动或重启第二定时器后，到终端设备成功解码第一数据时，或，到终端设备确定满足第一条件时，或，到终端设备将/想控制组播关联的DRX处于激活时间时，第二定时器未由于其他传输(例如，与第一RNTI或第一组播业务相关联的、通过组播方式传输的初传)启动或重启；(5) After the terminal device starts or restarts the second timer, when the terminal device successfully decodes the first data, or when the terminal device determines that the first condition is met, or when the terminal device will/want to control the DRX associated with the multicast When it is in the activation time, the second timer is not started or restarted due to other transmissions (for example, initial transmission associated with the first RNTI or the first multicast service and transmitted through multicast mode);
(6)终端设备由于第二DCI或第三DCI启动或重启第二定时器后，到终端设备成功解码第一数据时，或，到终端设备确定满足第一条件时，或，到终端设备将/想控制组播关联的DRX处于激活时间时，第二定时器未由于其他传输(例如，与第一RNTI或第一组播业务相关联的、通过组播方式传输的初传)启动或重启。(6) After the terminal device starts or restarts the second timer due to the second DCI or the third DCI, when the terminal device successfully decodes the first data, or when the terminal device determines that the first condition is met, or when the terminal device will / Want to control that when the DRX associated with multicast is in the activation time, the second timer is not started or restarted due to other transmissions (for example, the initial transmission associated with the first RNTI or the first multicast service and transmitted through multicast mode) .
可选的，第二DCI为终端设备接收到的第一个以单播方式传输的、用于调度第一数据的DCI。Optionally, the second DCI is the first DCI transmitted in unicast mode and used for scheduling the first data received by the terminal device.
第三DCI是以单播方式传输的。The third DCI is transmitted in unicast mode.
第三DCI与第一HARQ process ID(或第一HARQ进程)和第一NDI相关联。例如，第三DCI中包括第一HARQ process ID和第一NDI。The third DCI is associated with the first HARQ process ID (or first HARQ process) and the first NDI. For example, the third DCI includes the first HARQ process ID and the first NDI.
例如，第三DCI可以包括终端设备接收到的第一个以单播方式传输的、用于调度第一数据的DCI。For example, the third DCI may include the first DCI transmitted in a unicast manner and used for scheduling the first data received by the terminal device.
可选的，除了第三DCI和第二DCI之外，可能还存在其他的、以单播方式传输的、用于调度第一数据的DCI，本申请不限制。Optionally, in addition to the third DCI and the second DCI, there may be other DCI transmitted in a unicast manner and used for scheduling the first data, which is not limited by this application.
例如，终端设备成功解码第一数据时/后，或，终端设备确定第一数据包括第一LCID且终端设备未接收到通过组播方式传输的第一DCI时/后，确定组播关联的DRX是否处于激活时间，如果组播关联的DRX未处于激活时间，后续因组播关联的DRX未处于激活时间而无法接收通过组播方式传输的其他DCI。因此，终端设备控制组播的DRX处于激活时间，以使得终端设备后续可以接收通过组播方式传输的其他DCI，提高通信可靠性，降低通信时延。For example, when/after the terminal device successfully decodes the first data, or when/after the terminal device determines that the first data includes the first LCID and the terminal device does not receive the first DCI transmitted through multicast, the multicast-associated DRX is determined. Whether it is in the activation time. If the DRX associated with the multicast is not in the activation time, other DCI transmitted through multicast cannot be received later because the DRX associated with the multicast is not in the activation time. Therefore, the DRX of the terminal device controlling multicast is in the activation time, so that the terminal device can subsequently receive other DCI transmitted through multicast, thereby improving communication reliability and reducing communication delay.
例如，如果终端设备确定第一数据包括第一LCID，终端设备未接收到通过组播方式传输的第一DCI，若组播关联的DRX处于激活时间，不执行控制组播关联的DRX处于激活时间。For example, if the terminal device determines that the first data includes the first LCID, the terminal device does not receive the first DCI transmitted through multicast, and if the DRX associated with the multicast is at the activation time, no control is performed on the DRX associated with the multicast at the activation time. .
在一种可能的情况下，在第二DCI或第三DCI对应的时域位置或之后，到终端设备成功解码第一数据的期间，或，到终端设备确定满足第一条件的期间，或，到终端设备将/想控制组播关联的DRX处于激 活时间的期间，终端设备可能接收到了通过组播方式传输的其他DCI，从而终端设备启动或重启了与组播关联DRX对应的非激活定时器，使得组播关联的DRX处于激活时间，从而使得该终端设备与接收该组播业务的其他终端设备以及网络设备对齐了组播关联的DRX的激活时间，后续该终端设备可接收通过组播方式传输的DCI。那么，终端设备无需再控制组播关联的DRX处于激活时间。In one possible case, at or after the time domain position corresponding to the second DCI or the third DCI, the period until the terminal device successfully decodes the first data, or the period until the terminal device determines that the first condition is met, or, The terminal device will/want to control the DRX associated with the multicast to be active. During the live time, the terminal device may receive other DCI transmitted through multicast, so the terminal device starts or restarts the inactivation timer corresponding to the multicast-associated DRX, so that the multicast-associated DRX is in the activation time, thus making The terminal device aligns the activation time of the DRX associated with the multicast with other terminal devices and network devices that receive the multicast service, and subsequently the terminal device can receive DCI transmitted through multicast. Then, the terminal device no longer needs to control the activation time of the DRX associated with the multicast.
可选的，终端设备确定第一数据包括第一LCID，且终端设备未接收到通过组播方式传输的第一DCI时，如果终端设备接收到第二DCI或第三DCI后，第二定时器未启动或重启，表明终端设备接收到第二DCI或第三DCI后，未接收到其他通过组播方式传输的初传，从而未启动或重启与组播关联的DRX对应的非激活定时器，所以，该终端设备与接收该组播业务的其他终端设备以及网络设备之间组播关联的DRX的激活时间仍是不对齐的。因此，该情况下，终端设备需控制与组播关联的DRX处于激活时间，以使得后续可接收通过组播方式传输的其他DCI，提高通信可靠性，降低通信时延。Optionally, when the terminal device determines that the first data includes the first LCID and the terminal device does not receive the first DCI transmitted through multicast, if the terminal device receives the second DCI or the third DCI, the second timer Not started or restarted means that after the terminal device received the second DCI or the third DCI, it did not receive other initial transmissions transmitted through multicast, so the inactivation timer corresponding to the DRX associated with the multicast was not started or restarted. Therefore, the activation time of the DRX associated with the multicast between the terminal device and other terminal devices and network devices receiving the multicast service is still not aligned. Therefore, in this case, the terminal device needs to control the activation time of the DRX associated with multicast, so that it can subsequently receive other DCI transmitted through multicast, improve communication reliability, and reduce communication delay.
可选的，终端设备确定第一数据包括第一LCID，且终端设备未接收到通过组播方式传输的第一DCI时，如果终端设备接收到第三DCI后，第二定时器未启动或重启，表明终端设备接收到第一个以单播方式传输的、用于调度第一数据的DCI后，未接收到其他通过组播方式传输的初传，从而未启动或重启与组播关联的DRX对应的非激活定时器，所以，该终端设备与接收该组播业务的其他终端设备以及网络设备之间组播关联的DRX的激活时间仍是不对齐的。因此，该情况下，终端设备需控制与组播关联的DRX处于激活时间，以使得后续可接收通过组播方式传输的其他DCI，提高通信可靠性，降低通信时延。Optionally, when the terminal device determines that the first data includes the first LCID and the terminal device does not receive the first DCI transmitted through multicast, if the second timer is not started or restarted after the terminal device receives the third DCI , indicating that after the terminal device received the first DCI transmitted in unicast mode and used to schedule the first data, it did not receive other initial transmissions transmitted in multicast mode, so the DRX associated with multicast was not started or restarted. Therefore, the activation time of the DRX associated with the multicast between the terminal device, other terminal devices receiving the multicast service, and the network device is still not aligned. Therefore, in this case, the terminal device needs to control the activation time of the DRX associated with multicast, so that it can subsequently receive other DCI transmitted through multicast, improve communication reliability, and reduce communication delay.
例如，如图8所示，第一数据为数据#b。网络设备向终端设备传输数据#b时，终端设备未接收到调度数据#b初传的第一DCI，第一DCI是通过组播方式传输的。网络设备通过第三DCI调度数据#b的重传，第三DCI是通过单播方式传输的。终端设备接收到了调度数据#b重传的第三DCI，但未成功解码出数据#b。从而网络设备继续通过第二DCI调度数据#b的重传，第二DCI也是通过单播方式传输的。终端设备接收到了该第二DCI，并成功解码出数据#b。可选的，终端设备接收到第三DCI到接收到第二DCI之间的时间内，终端设备还可能会接收到调度数据#b重传的其他DCI，但均未成功解码出数据#b。若终端设备确定第一数据包括第一LCID，且未接收到通过组播方式传输的第一DCI，以及从接收到第三DCI，到成功解码出数据#b之间的时间段(即图8中T代表的时间段)，第二定时器未启动或重启过，表明终端设备接收到第三DCI后，未接收到其他通过组播方式传输的初传。从而，第二定时器一直未被启动或重启，所以，该终端设备与接收该组播业务的其他终端设备以及网络设备之间组播关联的DRX的激活时间仍是不对齐的。因此，该情况下，终端设备需控制与组播关联的DRX处于激活时间，以使得后续可接收通过组播方式传输的其他DCI，提高通信可靠性，降低通信时延。For example, as shown in FIG. 8, the first data is data #b. When the network device transmits data #b to the terminal device, the terminal device does not receive the first DCI initially transmitted by the scheduled data #b. The first DCI is transmitted through multicast. The network device schedules the retransmission of data #b through the third DCI, which is transmitted in a unicast manner. The terminal device received the third DCI scheduled for retransmission of data #b, but failed to successfully decode data #b. Therefore, the network device continues to schedule the retransmission of data #b through the second DCI, and the second DCI is also transmitted through unicast mode. The terminal device receives the second DCI and successfully decodes data #b. Optionally, during the period between when the terminal device receives the third DCI and when it receives the second DCI, the terminal device may also receive other DCIs scheduled for retransmission of data #b, but none of them successfully decodes data #b. If the terminal device determines that the first data includes the first LCID, and does not receive the first DCI transmitted through multicast, and the time period between receiving the third DCI and successfully decoding data #b (i.e., Figure 8 The time period represented by T in the middle), the second timer has not been started or restarted, indicating that after the terminal device received the third DCI, it did not receive other initial transmissions transmitted through multicast mode. Therefore, the second timer has not been started or restarted, so the activation time of the DRX associated with the multicast between the terminal device and other terminal devices and network devices receiving the multicast service is still not aligned. Therefore, in this case, the terminal device needs to control the activation time of the DRX associated with multicast, so that it can subsequently receive other DCI transmitted through multicast, improve communication reliability, and reduce communication delay.
可选的，考虑到从终端设备接收通过单播方式传输的、调度第一数据的DCI到终端设备正确解码第一数据，需要一定的时间，若第二定时器的配置时长小于该一定的时间，即便其他终端设备接收到了通过组播方式传输的、调度第一数据的DCI而启动了第二定时器，到了终端设备正确解码第一数据的时间点，其他终端设备因为接收通过组播方式传输的、调度第一数据的DCI而启动或重启的第二定时器也已经超时了，这种情况下若终端设备启动第二定时器，是没有必要的，而且会增加终端设备的功耗。可选的，因为网络设备调度重传时会考虑终端设备侧的第六定时器和/或第七定时器，所以该一定的时间还可以考虑第六定时器的配置时长和/或第七定时器的配置时长。Optionally, considering that it takes a certain time from the terminal device to receive the DCI that schedules the first data transmitted through unicast mode to the terminal device to correctly decode the first data, if the configured duration of the second timer is less than the certain time , even if other terminal equipment receives the DCI that schedules the first data transmitted through multicast and starts the second timer, at the time point when the terminal equipment correctly decodes the first data, other terminal equipment receives the DCI and transmits through multicast. The second timer started or restarted by scheduling the DCI of the first data has also timed out. In this case, if the terminal device starts the second timer, it is unnecessary and will increase the power consumption of the terminal device. Optionally, because the network device will consider the sixth timer and/or the seventh timer on the terminal device side when scheduling retransmission, the certain time may also consider the configured duration of the sixth timer and/or the seventh timer. The configuration time of the server.
可选的，第一条件还可以包括条件8。Optionally, the first condition may also include condition 8.
条件8：第二时长小于第二定时器的配置时长。Condition 8: The second duration is less than the configured duration of the second timer.
示例性的，第二时长可以包括以下任一项或多项或包括以下任一项或多项的和：从终端设备接收第二DCI(或第三DCI)到终端设备成功解码第一数据的时长；从终端设备接收第二DCI(或第三DCI)到终端设备确定满足第一条件的时长；从终端设备接收第二DCI(或第三DCI)到终端设备将/想控制组播关联的DRX处于激活时间的时长；第六定时器的配置时长；第七定时器的配置时长；第一预设时长。例如，第二时长为：从终端设备接收第二DCI(或第三DCI)到终端设备成功解码第一数据的时长。例如，第二时长为：从终端设备接收第二DCI(或第三DCI)到终端设备成功解码第一数据的时长和第六定时器的配置时长之和。例如，第二时长为：从终端设备接收第二DCI(或第三DCI)到终端设备成功解码第一数据的时长和第七定时器的配置时长之和。示例性的，第二定时器的配置时长、第六定时器的配置时长、第七定时器的配置时长中的任一项或多项可以是网络设备给终端设备配置的。例如，定时器的配置时长(例如，第二定时器的配置时长)还可以称为定时器的预设时长(例如，第二定时器的预设时长)。 Exemplarily, the second duration may include any one or more of the following or the sum of any one or more of the following: from when the terminal device receives the second DCI (or third DCI) to when the terminal device successfully decodes the first data. Duration; the duration from when the terminal device receives the second DCI (or third DCI) to when the terminal device determines that the first condition is met; from when the terminal device receives the second DCI (or third DCI) to when the terminal device will/want to control the multicast association The duration of the DRX activation time; the configuration duration of the sixth timer; the configuration duration of the seventh timer; and the first preset duration. For example, the second duration is: the duration from when the terminal device receives the second DCI (or third DCI) to when the terminal device successfully decodes the first data. For example, the second duration is: the sum of the duration from the terminal device receiving the second DCI (or the third DCI) to the terminal device successfully decoding the first data and the configured duration of the sixth timer. For example, the second duration is: the sum of the duration from when the terminal device receives the second DCI (or third DCI) to when the terminal device successfully decodes the first data and the configured duration of the seventh timer. For example, any one or more of the configuration duration of the second timer, the configuration duration of the sixth timer, and the configuration duration of the seventh timer may be configured by the network device to the terminal device. For example, the configured duration of the timer (eg, the configured duration of the second timer) may also be referred to as the preset duration of the timer (eg, the preset duration of the second timer).
可选的，“终端设备接收第二DCI(或第三DCI)”可以包括/替换为：第二DCI(或第三DCI)的时域位置。例如，第二DCI(或第三DCI)的时域位置也可以称为：第二DCI(或第三DCI)所在的时域位置，或，第二DCI(或第三DCI)对应的时域位置。例如，“终端设备接收第二DCI(或第三DCI)”可以包括/替换为：终端设备接收第二DCI(或第三DCI)的开始时域位置或结束时域位置或中间时域位置，本申请不限制。例如，第二DCI或第三DCI的时域位置可以包括：第二DCI(或第三DCI)的开始时域位置或结束时域位置或中间时域位置，本申请不限制。Optionally, "the terminal device receives the second DCI (or third DCI)" may include/replace with: the time domain position of the second DCI (or third DCI). For example, the time domain position of the second DCI (or third DCI) can also be called: the time domain position where the second DCI (or third DCI) is located, or the time domain corresponding to the second DCI (or third DCI). Location. For example, "the terminal device receives the second DCI (or the third DCI)" may include/replace with: the starting time domain position or the ending time domain position or the intermediate time domain position of the terminal device receiving the second DCI (or the third DCI), This application is not limited. For example, the time domain position of the second DCI or the third DCI may include: the starting time domain position, the ending time domain position, or the intermediate time domain position of the second DCI (or the third DCI), which is not limited by this application.
例如，第六定时器为与组播关联的DRX对应的RTT定时器(例如，drx-HARQ-RTT-TimerDL-PTM)。例如，组播关联的DRX对应的RTT定时器用于指示终端设备接收重传(例如，重传DCI和/或重传数据)前等待的时长。For example, the sixth timer is an RTT timer corresponding to DRX associated with multicast (eg, drx-HARQ-RTT-TimerDL-PTM). For example, the RTT timer corresponding to the multicast-associated DRX is used to indicate the length of time the terminal device waits before receiving a retransmission (for example, retransmitting DCI and/or retransmitting data).
例如，第七定时器与第一DRX相关联。示例性的，第七定时器为单播对应的RTT定时器(例如，drx-HARQ-RTT-TimerDL)。例如，单播对应的RTT定时器用于指示终端设备接收重传(例如，重传DCI和/或重传数据)前等待的时长。例如，第七定时器为与单播关联的DRX对应的RTT定时器或第一DRX对应的RTT定时器。可选的，第七定时器与第一小区对应的DRX group相关联。示例性的，第七定时器是第一小区对应的DRX group关联的drx-HARQ-RTT-TimerDL。For example, the seventh timer is associated with the first DRX. For example, the seventh timer is an RTT timer corresponding to unicast (for example, drx-HARQ-RTT-TimerDL). For example, the RTT timer corresponding to unicast is used to indicate the length of time the terminal device waits before receiving a retransmission (for example, retransmitting DCI and/or retransmitting data). For example, the seventh timer is an RTT timer corresponding to the DRX associated with unicast or an RTT timer corresponding to the first DRX. Optionally, the seventh timer is associated with the DRX group corresponding to the first cell. For example, the seventh timer is the drx-HARQ-RTT-TimerDL associated with the DRX group corresponding to the first cell.
例如，第一预设时长可以是网络设备给终端设备配置的，或者，是协议规定的，或者，是预配置的，或，终端设备存储的，或，终端设备通过其他方式获取的，本申请不限制。For example, the first preset duration may be configured by the network device for the terminal device, or it may be specified by the protocol, or it may be preconfigured, or it may be stored by the terminal device, or it may be obtained by the terminal device through other methods. This application not limited.
在一种可选的实现方式中，第二定时器的运行时长小于或等于第二定时器的配置时长减去第三时长。例如，第二定时器的运行时长为第二定时器的配置时长减去第三时长。例如，满足第一条件，终端设备启动或重启第二定时器，其中，第二定时器的运行时长小于或等于第二定时器的配置时长减去第三时长，或，启动或重启的第二定时器的运行时长小于或等于第二定时器的配置时长减去第三时长。例如，第二定时器的运行时长可以包括/称为：第二定时器的剩余运行时长。例如，第一条件包括条件1、条件2、条件3和条件8中的任一项或多项。In an optional implementation, the running duration of the second timer is less than or equal to the configured duration of the second timer minus the third duration. For example, the running duration of the second timer is the configured duration of the second timer minus the third duration. For example, when the first condition is met, the terminal device starts or restarts the second timer, wherein the running time of the second timer is less than or equal to the configured time length of the second timer minus the third time length, or the second timer is started or restarted. The running duration of the timer is less than or equal to the configured duration of the second timer minus the third duration. For example, the running time of the second timer may include/be called: the remaining running time of the second timer. For example, the first condition includes any one or more of condition 1, condition 2, condition 3 and condition 8.
可选的，“第二定时器的运行时长小于或等于第二定时器的配置时长减去第三时长”可以包括：终端设备设置/确定第二定时器的运行时长小于或等于第二定时器的配置时长减去第三时长。Optionally, "the running duration of the second timer is less than or equal to the configured duration of the second timer minus the third duration" may include: the terminal device sets/determines that the running duration of the second timer is less than or equal to the second timer. The configured duration minus the third duration.
示例性的，第三时长可以包括以下任一项或多项或包括以下任一项或多项的和：从终端设备接收第二DCI(或第三DCI)到终端设备成功解码第一数据的时长；从终端设备接收第二DCI(或第三DCI)到终端设备确定满足第一条件的时长；从终端设备接收第二DCI(或第三DCI)到终端设备将/想控制组播关联的DRX处于激活时间的时长；第六定时器的配置时长；第七定时器的配置时长；第一预设时长；第二预设时长。需要说明的是，第三时长可以和第二时长相同，也可以不同，本申请不限制。Exemplarily, the third time period may include any one or more of the following or the sum of any one or more of the following: from when the terminal device receives the second DCI (or third DCI) to when the terminal device successfully decodes the first data. Duration; the duration from when the terminal device receives the second DCI (or third DCI) to when the terminal device determines that the first condition is met; from when the terminal device receives the second DCI (or third DCI) to when the terminal device will/want to control the multicast association The duration of the DRX activation time; the configuration duration of the sixth timer; the configuration duration of the seventh timer; the first preset duration; the second preset duration. It should be noted that the third duration may be the same as the second duration, or may be different, and is not limited by this application.
例如，第二预设时长可以是网络设备给终端设备配置的，或者，是协议规定的，或者，是预配置的，或，终端设备存储的，或，终端设备通过其他方式获取的，本申请不限制。For example, the second preset duration may be configured by the network device for the terminal device, or specified by the protocol, or preconfigured, or stored by the terminal device, or obtained by the terminal device through other methods. This application not limited.
在一种可选的实现方式中，不满足第一条件，终端设备不执行S103-1。例如，若第二时长大于或等于第二定时器的配置时长，终端设备不启动或重启第二定时器。例如，第一条件包括条件1、条件2、条件3和条件8中的任一项或多项。In an optional implementation manner, if the first condition is not met, the terminal device does not execute S103-1. For example, if the second duration is greater than or equal to the configured duration of the second timer, the terminal device does not start or restart the second timer. For example, the first condition includes any one or more of condition 1, condition 2, condition 3 and condition 8.
例如，如图8所示，第一数据为数据#b。网络设备向终端设备传输数据#b时，终端设备未接收到调度数据#b初传的第一DCI，第一DCI是通过组播方式传输的。网络设备通过第三DCI调度数据#b的重传，第三DCI是通过单播方式传输的。终端设备接收到了调度数据#b重传的第三DCI，但未成功解码出数据#b。从而网络设备继续通过第二DCI调度数据#b的重传，第二DCI也是通过单播方式传输的。终端设备接收到了该第二DCI，并成功解码出数据#b。可选的，终端设备接收到第三DCI到接收到第二DCI之间的时间内，终端设备还可能会接收到调度数据#b重传的其他DCI，但均未成功解码出数据#b。若终端设备确定第一数据包括第一LCID，且未接收到通过组播方式传输的第一DCI，以及从接收到第三DCI，到成功解码出数据#b之间的时间段(即图8中T代表的时间段)，第二定时器未启动或重启过。若从接收到第三DCI，到成功解码出数据#b之间的时间段(即图8中T代表的时间段)小于第二定时器的配置时长，终端设备可以启动或重启第二定时器，且将第二定时器的运行时长设置为(第二定时器的配置时长-T)；若从接收到第三DCI，到成功解码出数据#b之间的时间段(即图8中T代表的时间段)大于或等于第二定时器的配置时长，终端设备可以不启动或重启第二定时器。这样，在一些情况下(例如，在该终端设备与接收该组播业务的其他终端设备以及网络设备之间组播关联的DRX的激活时间不对齐的情况下)，终端设备需控制与组播关联的DRX处于激活时间，以使得后续可接收通过组播方式传输的其他DCI，提高通信 可靠性，降低通信时延；在另一些情况下(例如，在该终端设备与接收该组播业务的其他终端设备以及网络设备之间组播关联的DRX的激活时间已经对齐的情况下)，终端设备不需控制与组播关联的DRX处于激活时间，可以避免不必要的终端设备的功耗的增加，有利于终端设备的节能。For example, as shown in FIG. 8, the first data is data #b. When the network device transmits data #b to the terminal device, the terminal device does not receive the first DCI initially transmitted by the scheduled data #b. The first DCI is transmitted through multicast. The network device schedules the retransmission of data #b through the third DCI, which is transmitted in a unicast manner. The terminal device received the third DCI scheduled for retransmission of data #b, but failed to successfully decode data #b. Therefore, the network device continues to schedule the retransmission of data #b through the second DCI, and the second DCI is also transmitted through unicast mode. The terminal device receives the second DCI and successfully decodes data #b. Optionally, during the period between when the terminal device receives the third DCI and when it receives the second DCI, the terminal device may also receive other DCIs scheduled for retransmission of data #b, but none of them successfully decodes data #b. If the terminal device determines that the first data includes the first LCID, and does not receive the first DCI transmitted through multicast, and the time period between receiving the third DCI and successfully decoding data #b (i.e., Figure 8 The time period represented by T in the middle), the second timer has not been started or restarted. If the time period from receiving the third DCI to successfully decoding data #b (i.e., the time period represented by T in Figure 8) is less than the configured duration of the second timer, the terminal device can start or restart the second timer. , and set the running time of the second timer to (the configuration time of the second timer - T); if the time period from receiving the third DCI to successfully decoding data #b (i.e. T in Figure 8 represents a period of time) greater than or equal to the configured duration of the second timer, the terminal device may not start or restart the second timer. In this way, in some cases (for example, when the activation time of the DRX associated with the multicast between the terminal device and other terminal devices receiving the multicast service and the network device is not aligned), the terminal device needs to control the multicast The associated DRX is in the activation time, so that other DCI transmitted through multicast can be received later to improve communication. reliability and reduce communication delay; in other cases (for example, when the activation time of the DRX associated with the multicast between the terminal device and other terminal devices receiving the multicast service and the network device has been aligned), The terminal equipment does not need to control the activation time of the DRX associated with the multicast, which can avoid unnecessary increases in power consumption of the terminal equipment and is conducive to energy saving of the terminal equipment.
可选的，第一条件还可以包括条件A或条件B或条件C。Optionally, the first condition may also include condition A, condition B, or condition C.
例如，若第二RNTI为C-RNTI和/或第一RNTI为第一G-RNTI，第一条件还可以包括条件A或条件B或条件C。For example, if the second RNTI is a C-RNTI and/or the first RNTI is a first G-RNTI, the first condition may also include condition A, condition B, or condition C.
条件A包括：第二DCI或第三DCI之前，终端设备接收到的针对第一HARQ进程的传输或第一HARQ process ID的传输包括以下任一项：Condition A includes: before the second DCI or the third DCI, the transmission for the first HARQ process or the transmission of the first HARQ process ID received by the terminal device includes any of the following:
(1)采用组播配置传输方式传输(即MBS SPS)；例如，在第一组播配置资源或其他组播配置资源(或，与其他的G-RNTI或G-CS-RNTI或组播业务相关联的组播配置资源)上传输的数据对应的传输。(1) Use multicast configuration transmission mode (i.e. MBS SPS); for example, in the first multicast configuration resource or other multicast configuration resources (or, with other G-RNTI or G-CS-RNTI or multicast services Transmission corresponding to data transmitted on the associated multicast configuration resource).
(2)采用G-CS-RNTI加扰的DCI动态调度传输(即Dynamic scheduling via G-CS-RNTI)；例如，采用第一G-CS-RNTI或其他G-CS-RNTI加扰的DCI动态调度传输。(2) DCI dynamic scheduling transmission scrambled by G-CS-RNTI (i.e. Dynamic scheduling via G-CS-RNTI); for example, DCI dynamic scrambled by the first G-CS-RNTI or other G-CS-RNTI Schedule transfers.
(3)采用单播配置传输方式传输(即SPS)；(3) Transmission using unicast configuration transmission (i.e. SPS);
(4)采用CS-RNTI加扰的DCI动态调度传输(即Dynamic scheduling via CS-RNTI)；(4) DCI dynamic scheduling transmission using CS-RNTI scrambling (i.e. Dynamic scheduling via CS-RNTI);
(5)采用G-RNTI加扰的DCI动态调度传输(即Dynamic scheduling via G-RNTI)，且该传输对应的NDI与第一NDI不同(例如，NDI翻转)；例如，采用第一G-RNTI或其他G-RNTI加扰的DCI动态调度传输(即Dynamic scheduling via G-RNTI)，且该传输对应的NDI与第一NDI不同。(5) DCI dynamic scheduling transmission scrambled by G-RNTI (i.e. Dynamic scheduling via G-RNTI) is used, and the NDI corresponding to the transmission is different from the first NDI (for example, NDI flip); for example, the first G-RNTI is used Or other G-RNTI scrambled DCI dynamic scheduling transmission (i.e. Dynamic scheduling via G-RNTI), and the NDI corresponding to this transmission is different from the first NDI.
(6)采用C-RNTI加扰的DCI动态调度传输(即Dynamic scheduling via other C-RNTI)，且该传输对应的NDI与第一NDI不同(例如，NDI翻转)。(6) DCI dynamic scheduling transmission scrambled by C-RNTI (i.e. Dynamic scheduling via other C-RNTI) is used, and the NDI corresponding to the transmission is different from the first NDI (for example, NDI flip).
可以理解的是，终端设备在上述(1)至(6)中的一项或多项情况下，终端设备接收到第三DCI或第二DCI，终端设备会将第三DCI或第二DCI对应的传输视为是单播新传。It can be understood that when the terminal device receives the third DCI or the second DCI in one or more of the above situations (1) to (6), the terminal device will respond to the third DCI or the second DCI. The transmission is considered a unicast new transmission.
条件B包括：第二DCI或第三DCI之前，终端设备接收到的针对第一HARQ进程的传输或第一HARQ process ID的传输为：采用C-RNTI加扰的DCI动态调度传输(即Dynamic scheduling via other C-RNTI)，且该传输对应的NDI与第一NDI相同(例如，NDI未翻转)。可以理解的是，在该情况下，终端设备接收到第三DCI或第二DCI，终端设备会将第三DCI或第二DCI对应的传输视为是单播重传。Condition B includes: before the second DCI or the third DCI, the transmission for the first HARQ process or the transmission of the first HARQ process ID received by the terminal device is: DCI dynamic scheduling transmission using C-RNTI scrambling (i.e. Dynamic scheduling) via other C-RNTI), and the NDI corresponding to the transmission is the same as the first NDI (for example, the NDI is not flipped). It can be understood that in this case, if the terminal device receives the third DCI or the second DCI, the terminal device will regard the transmission corresponding to the third DCI or the second DCI as a unicast retransmission.
上述条件A或条件B对应的情况下，终端设备接收到第三DCI或第二DCI，终端设备会因未接收到第一DCI，终端设备会将第三DCI或第二DCI对应的传输视为是单播传输。When the above condition A or condition B corresponds, if the terminal device receives the third DCI or the second DCI, the terminal device will regard the transmission corresponding to the third DCI or the second DCI as having not received the first DCI. It is a unicast transmission.
条件C包括：第二DCI或第三DCI之前，终端设备接收到的针对第一HARQ进程的传输或第一HARQ process ID的传输为：采用其他G-RNTI加扰的DCI动态调度传输(即Dynamic scheduling via G-RNTI)，且该传输对应的NDI与第一NDI相同(例如，NDI未翻转)。可以理解的是，在该情况下，终端设备接收到第三DCI或第二DCI，终端设备会因未接收到第一DCI，终端设备会将第三DCI或第二DCI对应的传输视为是其他G-RNTI相关的组播MTCH相关传输的重传。Condition C includes: before the second DCI or the third DCI, the transmission for the first HARQ process or the transmission of the first HARQ process ID received by the terminal device is: DCI dynamically scheduled transmission scrambled by other G-RNTI (i.e. Dynamic scheduling via G-RNTI), and the NDI corresponding to the transmission is the same as the first NDI (for example, the NDI is not flipped). It can be understood that in this case, if the terminal device receives the third DCI or the second DCI, the terminal device will regard the transmission corresponding to the third DCI or the second DCI as having not received the first DCI. Retransmission of other G-RNTI related multicast MTCH related transmissions.
可选的，第一条件还可以包括条件D或条件E。Optionally, the first condition may also include condition D or condition E.
例如，若第二RNTI为CS-RNTI和/或第一RNTI为第一G-CS-RNTI，第一条件还可以包括条件D或条件E。For example, if the second RNTI is CS-RNTI and/or the first RNTI is the first G-CS-RNTI, the first condition may also include condition D or condition E.
条件D包括：第二DCI或第三DCI之前，终端设备接收到的针对第一HARQ进程的传输或第一HARQ process ID的传输包括以下任一项：Condition D includes: before the second DCI or the third DCI, the transmission for the first HARQ process or the transmission of the first HARQ process ID received by the terminal device includes any of the following:
(1)采用单播配置传输方式传输(即SPS)；(1) Transmission using unicast configuration transmission (i.e. SPS);
(2)采用CS-RNTI加扰的DCI动态调度传输(即Dynamic scheduling via CS-RNTI)，且该传输对应的NDI与第一NDI相同(例如，NDI未翻转)。(2) DCI dynamic scheduling transmission scrambled by CS-RNTI (i.e. Dynamic scheduling via CS-RNTI) is used, and the NDI corresponding to the transmission is the same as the first NDI (for example, the NDI is not flipped).
可以理解的是，终端设备在上述(1)或(2)中的一项或多项情况下，终端设备接收到第三DCI或第二DCI，终端设备会因未接收到第一DCI，终端设备会将第三DCI或第二DCI对应的传输视为是单播重传。It can be understood that if the terminal equipment receives the third DCI or the second DCI in one or more of the above situations (1) or (2), the terminal equipment will not receive the first DCI. The device will treat the transmission corresponding to the third DCI or the second DCI as a unicast retransmission.
条件E包括：第二DCI或第三DCI之前，终端设备接收到的针对第一HARQ进程的传输或第一HARQ process ID的传输为：采用组播配置传输方式传输(即MBS SPS)；例如，在其他组播配置资源(或，与其他的G-RNTI或G-CS-RNTI或组播业务相关联的组播配置资源)上传输的数据对应的传输。可以理解的是，在该情况下，终端设备接收到第三DCI或第二DCI，终端设备会因未接收到第一DCI，终端设备会将第三DCI或第二DCI对应的传输视为是其他G-RNTI或G-CS-RNTI相关的组播MTCH相关传输的重传。 Condition E includes: before the second DCI or the third DCI, the transmission for the first HARQ process or the transmission of the first HARQ process ID received by the terminal device is: transmitted in a multicast configuration transmission mode (ie, MBS SPS); for example, Transmission corresponding to data transmitted on other multicast configuration resources (or multicast configuration resources associated with other G-RNTI or G-CS-RNTI or multicast services). It can be understood that in this case, if the terminal device receives the third DCI or the second DCI, the terminal device will regard the transmission corresponding to the third DCI or the second DCI as having not received the first DCI. Retransmission of other G-RNTI or G-CS-RNTI related multicast MTCH related transmissions.
可以理解的是，在条件A或条件B或条件C或条件D或条件E对应的情况下，终端设备接收到第三DCI或第二DCI，终端设备会因未接收到第一DCI，终端设备会将第三DCI或第二DCI对应的传输视为是单播传输或者其他组播相关的组播MTCH相关传输，均不会启动或重启与组播关联的DRX对应的非激活定时器，后续因组播关联的DRX未处于激活时间而无法接收通过组播方式传输的其他DCI。因此，终端设备控制组播的DRX处于激活时间，以使得终端设备后续可以接收通过组播方式传输的其他DCI，提高通信可靠性，降低通信时延。It can be understood that when condition A or condition B or condition C or condition D or condition E corresponds and the terminal device receives the third DCI or the second DCI, the terminal device will not receive the first DCI. The transmission corresponding to the third DCI or the second DCI will be regarded as a unicast transmission or other multicast-related multicast MTCH-related transmission, and the inactivation timer corresponding to the DRX associated with the multicast will not be started or restarted. Because the multicast-associated DRX is not in the activation time, other DCI transmitted through multicast cannot be received. Therefore, the DRX of the terminal device controlling multicast is in the activation time, so that the terminal device can subsequently receive other DCI transmitted through multicast, thereby improving communication reliability and reducing communication delay.
可选的，终端设备未接收到第一DCI可以包括/替换为：条件A或条件B或条件C或条件D或条件E。Optionally, the terminal device has not received the first DCI may include/replace with: condition A or condition B or condition C or condition D or condition E.
可以理解的是，在条件A或条件B或条件C或条件D或条件E对应的情况下，第一数据包括第一LCID，终端设备可以确定终端设备未接收到第一DCI。It can be understood that, in the case where condition A or condition B or condition C or condition D or condition E corresponds, the first data includes the first LCID, and the terminal device can determine that the terminal device has not received the first DCI.
S103-2.终端设备停止第一定时器或缩短第一定时器的剩余运行时长。S103-2. The terminal device stops the first timer or shortens the remaining running time of the first timer.
示例性的，第一定时器与第一DRX相关联。Exemplarily, the first timer is associated with the first DRX.
第一DRX可以用于控制终端设备特定的控制信息的监听。The first DRX may be used to control monitoring of terminal device-specific control information.
可选的，第一DRX也可以用于控制不是终端设备特定的控制信息的监听，本申请不限定。Optionally, the first DRX can also be used to control monitoring of control information that is not specific to the terminal device, which is not limited by this application.
例如，第一DRX可以用于控制针对以下任一项或多项RNTI的控制信息的监听：C-RNTI、取消指示RNTI(cancellation indication RNTI，CI-RNTI)、配置调度RNTI(configured scheduling RNTI，CS-RNTI)、中断RNTI(interruption RNTI，INT-RNTI)、时隙格式指示RNTI(slot format indication RNTI，SFI-RNTI)、半静态信道状态信息(channel state information，CSI)RNTI(semi-persistent CSI RNTI，SP-CSI-RNTI)、传输功率控制-物理上行控制信道-RNTI(transmit power control-PUCCH-RNTI，TPC-PUCCH-RNTI)、传输功率控制-物理上行共享信道-RNTI(transmit power control-PUSCH-RNTI，TPC-PUSCH-RNTI)、传输功率控制-探测参考信号-RNTI(transmit power control-sounding reference signal-RNTI，TPC-SRS-RNTI)、采集指示器(acquisition indicator，AI)-RNTI、侧行链路RNTI(sidelink RNTI，SL-RNTI)、侧行链路配置调度RNTI(sidelink configured scheduling RNTI，SLCS-RNTI)、侧行链路半静态调度V2X RNTI(SL semi-persistent scheduling V-RNTI)。For example, the first DRX can be used to control monitoring of control information for any one or more of the following RNTIs: C-RNTI, cancellation indication RNTI (CI-RNTI), configuration scheduling RNTI (configured scheduling RNTI, CS) -RNTI), interrupt RNTI (interruption RNTI, INT-RNTI), slot format indication RNTI (slot format indication RNTI, SFI-RNTI), semi-static channel state information (channel state information, CSI) RNTI (semi-persistent CSI RNTI , SP-CSI-RNTI), transmission power control-physical uplink control channel-RNTI (transmit power control-PUCCH-RNTI, TPC-PUCCH-RNTI), transmission power control-physical uplink shared channel-RNTI (transmit power control-PUSCH -RNTI, TPC-PUSCH-RNTI), transmission power control-sounding reference signal-RNTI (TPC-SRS-RNTI), acquisition indicator (acquisition indicator, AI)-RNTI, side Sidelink RNTI (sidelink RNTI, SL-RNTI), sidelink configured scheduling RNTI (sidelink configured scheduling RNTI, SLCS-RNTI), sidelink semi-persistent scheduling V2X RNTI (SL semi-persistent scheduling V-RNTI) .
例如，第一DRX可以为单播DRX，或，DRX组(例如，一个DRX组)。For example, the first DRX may be unicast DRX, or a DRX group (for example, a DRX group).
示例性的，第一DRX的激活时间可以包括以下任一项或多项：单播对应的持续时间定时器(例如，drx-onDurationTimer)的运行时间；单播对应的非激活定时器(例如，drx-InactivityTimer)的运行时间；或，单播对应的重传定时器的运行时间。Exemplarily, the activation time of the first DRX may include any one or more of the following: the running time of the duration timer corresponding to unicast (for example, drx-onDurationTimer); the inactivation timer corresponding to unicast (for example, drx-InactivityTimer); or, the running time of the retransmission timer corresponding to unicast.
示例性的，单播对应的重传定时器可以包括以下任一项或多项：下行重传定时器(例如，drx-RetransmissionTimerDL)，上行重传定时器(例如，drx-RetransmissionTimerUL)，或，侧行链路重传定时器(例如，drx-RetransmissionTimerSL)。For example, the retransmission timer corresponding to unicast may include any one or more of the following: downlink retransmission timer (for example, drx-RetransmissionTimerDL), uplink retransmission timer (for example, drx-RetransmissionTimerUL), or, Sidelink retransmission timer (e.g., drx-RetransmissionTimerSL).
可以理解的是，在第一DRX的激活时间内，终端设备监听终端设备特定的控制信息。It can be understood that, within the activation time of the first DRX, the terminal device monitors control information specific to the terminal device.
例如，单播对应的持续时间定时器/持续时间定时器用于指示终端设备被唤醒之后等待接收控制信息(例如，DCI)的持续时间。For example, the duration timer/duration timer corresponding to unicast is used to indicate the duration of waiting for the terminal device to receive control information (eg, DCI) after waking up.
例如，单播对应的非激活定时器/非激活定时器用于指示用于调度新传的控制信息或新传数据之后的一段时长。For example, the inactivation timer/inactivation timer corresponding to unicast is used to indicate a period of time after the newly transmitted control information or newly transmitted data is scheduled.
例如，单播对应的重传定时器/重传定时器用于指示终端设备接收重传(例如，重传DCI、重传数据、重传资源)的时长。For example, the retransmission timer/retransmission timer corresponding to unicast is used to indicate the length of time for the terminal device to receive retransmission (for example, retransmission of DCI, retransmission of data, retransmission of resources).
例如，单播对应的下行重传定时器/下行重传定时器用于指示终端设备接收下行重传(例如，重传DCI、重传数据、重传资源)的时长。For example, the downlink retransmission timer/downlink retransmission timer corresponding to unicast is used to indicate the length of time for the terminal device to receive downlink retransmission (for example, retransmission of DCI, retransmission of data, retransmission of resources).
例如，单播对应的上行重传定时器/上行重传定时器用于指示终端设备接收上行重传(例如，重传DCI、重传数据、重传资源)的时长。For example, the uplink retransmission timer/uplink retransmission timer corresponding to unicast is used to indicate the length of time for the terminal device to receive uplink retransmission (for example, retransmission of DCI, retransmission of data, retransmission of resources).
例如，单播对应的侧行链路重传定时器/侧行链路重传定时器用于指示终端设备接收侧行链路重传(例如，重传DCI、重传数据、重传资源)的时长。For example, the sidelink retransmission timer/sidelink retransmission timer corresponding to unicast is used to instruct the terminal device to receive sidelink retransmission (for example, retransmission of DCI, retransmission of data, retransmission of resources) duration.
示例性的，第一DRX的激活时间可以包括以下任一项或多项：DRX组对应的持续时间定时器(例如，drx-onDurationTimer)的运行时间；DRX组对应的非激活定时器(例如，drx-InactivityTimer)的运行时间；或，DRX组对应的重传定时器的运行时间。Exemplarily, the activation time of the first DRX may include any one or more of the following: the running time of the duration timer (for example, drx-onDurationTimer) corresponding to the DRX group; the inactivation timer corresponding to the DRX group (for example, drx-InactivityTimer); or, the running time of the retransmission timer corresponding to the DRX group.
可选的，第一DRX的激活时间还可以包括其他的时间，本申请不限定。示例性的，第一DRX的激活时间的内容可以参考3GPP TS 38.321:"NR；Medium Access Control(MAC)；Protocol specification"。 Optionally, the activation time of the first DRX may also include other times, which is not limited by this application. For example, the content of the activation time of the first DRX may refer to 3GPP TS 38.321: "NR; Medium Access Control (MAC); Protocol specification".
示例性的，第一定时器为单播对应的非激活定时器(例如，drx-InactivityTimer)。For example, the first timer is an inactivation timer corresponding to unicast (for example, drx-InactivityTimer).
例如，第一定时器为与单播关联的DRX对应的非激活定时器或第一DRX对应的非激活定时器。For example, the first timer is an inactivation timer corresponding to the DRX associated with the unicast or an inactivation timer corresponding to the first DRX.
可选的，第一定时器与第一小区对应的DRX group相关联。第一小区与第一数据、第一DCI、第二DCI、第三DCI、第一组播业务、第一G-RNTI、第一G-CS-RNTI中的任一个或多项相关联。例如，终端设备在第一小区接收第一数据、第二DCI、第三DCI。示例性的，第一定时器是第一小区对应的DRX group关联的drx-InactivityTimer。Optionally, the first timer is associated with the DRX group corresponding to the first cell. The first cell is associated with any one or more of the first data, the first DCI, the second DCI, the third DCI, the first multicast service, the first G-RNTI, and the first G-CS-RNTI. For example, the terminal device receives the first data, the second DCI, and the third DCI in the first cell. For example, the first timer is the drx-InactivityTimer associated with the DRX group corresponding to the first cell.
第一定时器的剩余运行时长也可以称为第一定时器的运行时长。The remaining running time of the first timer may also be called the running time of the first timer.
在一种可选的实施方式中，如果满足第一条件，终端设备停止第一定时器。In an optional implementation, if the first condition is met, the terminal device stops the first timer.
可选的，第一条件还可以包括以下一项或多项：Optionally, the first condition may also include one or more of the following:
条件4：终端设备接收到第二DCI或第三DCI，第一定时器未运行；Condition 4: The terminal device receives the second DCI or the third DCI and the first timer is not running;
条件5：终端设备接收到第二DCI或第三DCI后，第一定时器未启动或重启；Condition 5: After the terminal device receives the second DCI or the third DCI, the first timer does not start or restart;
条件6：第一定时器的运行是由于第二DCI或第三DCI导致的；或者，第一定时器的运行是由于第二DCI或第三DCI启动或重启第一定时器导致的；或者，终端设备由于第二DCI或第三DCI启动或重启第一定时器；Condition 6: The operation of the first timer is caused by the second DCI or the third DCI; or, the operation of the first timer is caused by the second DCI or the third DCI starting or restarting the first timer; or, The terminal device starts or restarts the first timer due to the second DCI or the third DCI;
条件9：第一定时器的配置时长大于第三时长。Condition 9: The configured duration of the first timer is greater than the third duration.
示例性的，第一定时器的配置时长可以是网络设备给终端设备配置的。例如，第一定时器的配置时长也可以称为第一定时器的预设时长。For example, the configured duration of the first timer may be configured by the network device for the terminal device. For example, the configured duration of the first timer may also be called the preset duration of the first timer.
示例性的，第三时长包括以下任一项：从终端设备因为第二DCI或第三DCI的接收而启动或重启第一定时器的时间点T1到终端设备成功解码第一数据的时长；从终端设备因为第二DCI或第三DCI的接收而启动或重启第一定时器的时间点T1到终端设备确定满足第一条件的时长；从终端设备因为第二DCI或第三DCI的接收而启动或重启第一定时器的时间点T1到终端设备将/想停止第一定时器或缩短第一定时器的剩余运行时长；(T2-T1)。可选的，“终端设备接收到第二DCI或第三DCI，第一定时器未运行”可以包括以下任一项或多项：Exemplarily, the third duration includes any of the following: from the time point T1 when the terminal device starts or restarts the first timer due to the reception of the second DCI or the third DCI to the duration when the terminal device successfully decodes the first data; from The time period from the time point T1 when the terminal equipment starts or restarts the first timer due to the reception of the second DCI or the third DCI to the terminal equipment determining that the first condition is met; from the time point T1 when the terminal equipment starts due to the reception of the second DCI or the third DCI. Or the terminal device will/want to stop the first timer or shorten the remaining running time of the first timer from the time point T1 of restarting the first timer; (T2-T1). Optionally, "the terminal device received the second DCI or the third DCI and the first timer did not run" can include any one or more of the following:
(1)终端设备接收到第二DCI或第三DCI后，第一定时器未运行；(1) After the terminal device receives the second DCI or the third DCI, the first timer does not run;
(2)终端设备接收到第二DCI或第三DCI后的第一时长后或第一时刻，第一定时器未运行；(2) The first timer does not run after the first time period or the first moment after the terminal device receives the second DCI or the third DCI;
(3)终端设备启动或重启第一定时器时，第一定时器未运行；或，终端设备由于第二DCI或第三DCI启动或重启第一定时器时，第一定时器未运行。(3) When the terminal equipment starts or restarts the first timer, the first timer does not run; or when the terminal equipment starts or restarts the first timer due to the second DCI or third DCI, the first timer does not run.
例如，“由于第二DCI或第三DCI”可以包括：由于第二DCI或第三DCI的接收。For example, "due to the second DCI or the third DCI" may include: due to the reception of the second DCI or the third DCI.
其中，第一时刻可以为第a个符号/时隙/子帧/帧等。其中，a为大于或等于0的整数。例如，a为1。第一时刻的值/a的值/第一时长的值可以是网络设备配置或预配置的或协议规定的，本申请不限制。The first moment may be the a-th symbol/slot/subframe/frame, etc. Among them, a is an integer greater than or equal to 0. For example, a is 1. The value of the first moment/the value of a/the value of the first duration may be configured or pre-configured by the network device or specified by the protocol, which is not limited by this application.
例如，终端设备在接收第二DCI或第三DCI后的第一个符号启动或重启第一定时器。For example, the terminal device starts or restarts the first timer after receiving the first symbol after the second DCI or the third DCI.
第一定时器未启动或重启，可以包括：第一定时器未启动或重启过。可选的，“第一定时器未启动或重启过”并不限定第一定时器是否运行。The first timer has not been started or restarted, which may include: the first timer has not been started or restarted. Optionally, "the first timer has not been started or restarted" does not limit whether the first timer is running.
可选的，“终端设备接收到第二DCI或第三DCI后，第一定时器未启动或重启”可以包括以下一项或多项：终端设备启动或重启第一定时器后，第一定时器未启动或重启；终端设备由于第二DCI或第三DCI启动或重启第一定时器后，第一定时器未启动或重启；终端设备接收到第二DCI或第三DCI后，第一定时器未由于其他传输(例如，单播新传)启动或重启；终端设备启动或重启第一定时器后，第一定时器未由于其他传输(例如，单播初传)启动或重启；终端设备由于第二DCI或第三DCI启动或重启第一定时器后，第一定时器未由于其他传输(例如，单播初传)启动或重启。Optionally, "After the terminal device receives the second DCI or the third DCI, the first timer is not started or restarted" may include one or more of the following: After the terminal device starts or restarts the first timer, the first timer is not started or restarted. The first timer does not start or restart after the terminal equipment starts or restarts the first timer due to the second DCI or the third DCI; the first timer does not start or restarts after the terminal equipment receives the second DCI or the third DCI. The first timer is not started or restarted due to other transmissions (for example, unicast new transmission); after the terminal equipment starts or restarts the first timer, the first timer is not started or restarted due to other transmissions (for example, unicast initial transmission); the terminal equipment After the first timer is started or restarted due to the second DCI or the third DCI, the first timer is not started or restarted due to other transmissions (for example, unicast initial transmission).
可选的，“终端设备接收到第二DCI或第三DCI后，第一定时器未启动或重启”可以包括以下一项或多项：Optionally, "after the terminal device received the second DCI or the third DCI, the first timer was not started or restarted" may include one or more of the following:
(1)终端设备接收到第二DCI或第三DCI后，到终端设备成功解码第一数据时，或，到终端设备确定满足第一条件时，或，到终端设备将/想停止第一定时器时，第一定时器未启动或重启过；(1) After the terminal device receives the second DCI or the third DCI, when the terminal device successfully decodes the first data, or when the terminal device determines that the first condition is met, or when the terminal device will/want to stop the first timing When the timer is set, the first timer has not been started or restarted;
(2)终端设备启动或重启第一定时器后，到终端设备成功解码第一数据时，或，到终端设备确定满足第一条件时，或，到终端设备将/想停止第一定时器时，第一定时器未启动或重启过； (2) After the terminal device starts or restarts the first timer, when the terminal device successfully decodes the first data, or when the terminal device determines that the first condition is met, or when the terminal device will/want to stop the first timer , the first timer has not been started or restarted;
(3)终端设备由于第二DCI或第三DCI启动或重启第一定时器后，到终端设备成功解码第一数据时，或，到终端设备确定满足第一条件时，或，到终端设备将/想停止第一定时器时，第一定时器未启动或重启过；(3) After the terminal device starts or restarts the first timer due to the second DCI or the third DCI, when the terminal device successfully decodes the first data, or when the terminal device determines that the first condition is met, or when the terminal device will /When you want to stop the first timer, the first timer has not been started or restarted;
(4)终端设备接收到第二DCI或第三DCI后，到终端设备成功解码第一数据时，或，到终端设备确定满足第一条件时，或，到终端设备将/想停止第一定时器时，第一定时器未由于其他传输(例如，单播初传)启动或重启过；(4) After the terminal device receives the second DCI or the third DCI, when the terminal device successfully decodes the first data, or when the terminal device determines that the first condition is met, or when the terminal device will/want to stop the first timing timer, the first timer has not been started or restarted due to other transmissions (for example, unicast initial transmission);
(5)终端设备启动或重启第一定时器后，到终端设备成功解码第一数据时，或，到终端设备确定满足第一条件时，或，到终端设备将/想停止第一定时器时，第一定时器未由于其他传输(例如，单播初传)启动或重启；(5) After the terminal device starts or restarts the first timer, when the terminal device successfully decodes the first data, or when the terminal device determines that the first condition is met, or when the terminal device will/want to stop the first timer , the first timer is not started or restarted due to other transmissions (e.g., unicast initial transmission);
(6)终端设备由于第二DCI或第三DCI启动或重启第一定时器后，到终端设备成功解码第一数据时，或，到终端设备确定满足第一条件时，或，到终端设备将/想停止第一定时器时，第一定时器未由于其他传输(例如，单播初传)启动或重启。(6) After the terminal device starts or restarts the first timer due to the second DCI or the third DCI, when the terminal device successfully decodes the first data, or when the terminal device determines that the first condition is met, or when the terminal device will / When you want to stop the first timer, the first timer is not started or restarted due to other transmissions (for example, unicast initial transmission).
在一种可能的情况下，如果第一数据包括第一LCID，终端设备未接收到通过组播方式传输的第一DCI，且终端设备接收到第二DCI或第三DCI时第一定时器未运行，终端设备停止第一定时器。In a possible situation, if the first data includes the first LCID, the terminal device does not receive the first DCI transmitted through multicast, and the first timer fails when the terminal device receives the second DCI or the third DCI. Run, the terminal device stops the first timer.
在另一种可能的情况下，如果第一数据包括第一LCID，终端设备未接收到通过组播方式传输的第一DCI，且终端设备接收到第二DCI或第三DCI后，第一定时器未启动或重启过，终端设备停止第一定时器。In another possible situation, if the first data includes the first LCID, the terminal device does not receive the first DCI transmitted through multicast, and after the terminal device receives the second DCI or the third DCI, the first timing The server has not been started or restarted, and the terminal device stops the first timer.
在又一种可能的情况下，第一数据包括第一LCID，终端设备未接收到通过组播方式传输的第一DCI，以及终端设备接收到第二DCI或第三DCI时第一定时器未运行，且终端设备接收到第二DCI或第三DCI后第一定时器也未启动或重启过，终端设备停止第一定时器，以减少终端设备的功耗。终端设备确定第一数据是组播MTCH相关的数据，且，终端设备接收到第二DCI或第三DCI时第一定时器未运行，且，终端设备接收到第二DCI或第三DCI后第一定时器未由于其他传输启动或重启过。终端设备接收到第二DCI或第三DCI，可能将第二DCI或第三DCI对应的传输误判为单播初传，终端设备启动或重启了第一定时器，那么第一定时器的运行是由于该终端设备将第二DCI或第三DCI对应的传输误判为单播初传而导致的，这种情况下，网络设备并不会由于第二DCI或第三DCI启动或重启第一定时器，终端设备的第一定时器运行将会导致费电，因此终端设备需停止第一定时器。In another possible situation, the first data includes the first LCID, the terminal device does not receive the first DCI transmitted through multicast, and the first timer fails when the terminal device receives the second DCI or the third DCI. running, and the first timer has not been started or restarted after the terminal device receives the second DCI or the third DCI, the terminal device stops the first timer to reduce the power consumption of the terminal device. The terminal equipment determines that the first data is multicast MTCH related data, and the first timer is not running when the terminal equipment receives the second DCI or the third DCI, and the terminal equipment receives the second DCI or the third DCI after the first timer is running. A timer has not been started or restarted due to other transfers. When the terminal device receives the second DCI or the third DCI, it may misjudge the transmission corresponding to the second DCI or the third DCI as a unicast initial transmission. If the terminal device starts or restarts the first timer, then the operation of the first timer This is caused by the terminal device misjudging the transmission corresponding to the second DCI or the third DCI as an initial unicast transmission. In this case, the network device will not start or restart the first DCI due to the second DCI or the third DCI. Timer, the operation of the first timer of the terminal device will cause power consumption, so the terminal device needs to stop the first timer.
需要说明的是，终端设备未接收到第一DCI可以包括/替换为：条件4、条件5、条件6中的任一项或多项。例如，可以理解的是，在条件6对应的情况下，或，在条件4和/或条件5对应的情况下，第一数据包括第一LCID，终端设备可以确定终端设备未接收到第一DCI。It should be noted that the fact that the terminal device has not received the first DCI may include/replace with: any one or more of condition 4, condition 5, and condition 6. For example, it can be understood that, in the case corresponding to condition 6, or in the case corresponding to condition 4 and/or condition 5, the first data includes the first LCID, and the terminal device can determine that the terminal device has not received the first DCI. .
在另一种可选的实施方式中，如果满足第一条件，终端设备缩短第一定时器的剩余运行时长。In another optional implementation, if the first condition is met, the terminal device shortens the remaining running time of the first timer.
可选的，第一条件还可以包括以下一项或多项：Optionally, the first condition may also include one or more of the following:
条件7：终端设备接收到第二DCI或第三DCI，第一定时器运行；Condition 7: The terminal device receives the second DCI or the third DCI and the first timer runs;
条件5：终端设备接收到第二DCI或第三DCI后，第一定时器未启动或重启；Condition 5: After the terminal device receives the second DCI or the third DCI, the first timer does not start or restart;
条件6：第一定时器的运行是由于第二DCI或第三DCI导致的；或者，第一定时器的运行是由于第二DCI或第三DCI启动或重启第一定时器导致的；或者，终端设备由于第二DCI或第三DCI启动或重启第一定时器；Condition 6: The operation of the first timer is caused by the second DCI or the third DCI; or, the operation of the first timer is caused by the second DCI or the third DCI starting or restarting the first timer; or, The terminal device starts or restarts the first timer due to the second DCI or the third DCI;
条件9：第一定时器的配置时长大于第三时长。Condition 9: The configured duration of the first timer is greater than the third duration.
第一定时器运行可以包括：第一定时器正运行。The first timer running may include: the first timer is running.
可选的，“终端设备接收到第二DCI或第三DCI，第一定时器运行”可以包括以下任一项或多项：Optionally, "the terminal device receives the second DCI or the third DCI, and the first timer runs" may include any one or more of the following:
(1)终端设备接收到第二DCI或第三DCI后/时，第一定时器运行；(1) After/when the terminal device receives the second DCI or the third DCI, the first timer runs;
(2)终端设备接收到第二DCI或第三DCI后的第一时长后或第一时刻，第一定时器运行；(2) The first timer runs after the first time period or the first moment after the terminal device receives the second DCI or the third DCI;
(3)终端设备启动或重启第一定时器时，第一定时器运行；或，终端设备由于第二DCI或第三DCI启动或重启第一定时器时，第一定时器运行。(3) When the terminal device starts or restarts the first timer, the first timer runs; or when the terminal device starts or restarts the first timer due to the second DCI or third DCI, the first timer runs.
可理解的，终端设备接收到第二DCI或第三DCI，第一定时器运行，表明终端设备接收到第二DCI或第三DCI之前，由于终端设备接收到通过单播方式传输的其他DCI，而启动或重启了第一定时器，使得第一定时器正运行。It is understandable that when the terminal device receives the second DCI or the third DCI, the first timer runs, indicating that before the terminal device receives the second DCI or the third DCI, because the terminal device receives other DCI transmitted through unicast, The first timer is started or restarted, so that the first timer is running.
终端设备确定第一数据是组播MTCH相关的数据，且，终端设备接收到第二DCI或第三DCI时第一定时器运行，且，终端设备接收到第二DCI或第三DCI后第一定时器未由于其他传输启动或重启过。终端设备接收到第二DCI或第三DCI，可能将第二DCI或第三DCI对应的传输误判为单播初传，终端设备 启动或重启了第一定时器，进而会延长终端设备的第一定时器运行的时间。该情况下，网络设备并不会由于第二DCI或第三DCI启动或重启第一定时器，因此终端设备需缩短第一定时器的剩余运行时长，从而减少终端设备的功耗。The terminal device determines that the first data is multicast MTCH related data, and the first timer runs when the terminal device receives the second DCI or the third DCI, and the first timer runs after the terminal device receives the second DCI or the third DCI. The timer has not been started or restarted due to other transfers. When the terminal device receives the second DCI or the third DCI, it may misjudge the transmission corresponding to the second DCI or the third DCI as a unicast initial transmission. The terminal device The first timer is started or restarted, which will extend the running time of the first timer of the terminal device. In this case, the network device will not start or restart the first timer due to the second DCI or the third DCI, so the terminal device needs to shorten the remaining running time of the first timer, thereby reducing the power consumption of the terminal device.
可选的，终端设备接收到第二DCI或第三DCI后，第一定时器未启动或重启，表明终端设备接收到第二DCI或第三DCI后，没有接收到其他通过单播传输的DCI，从而不会启动或重启第一定时器。因此，第一定时器的启动或重启是由于第二DCI或第三DCI造成的。然而，第二DCI或第三DCI实际是通过组播方式调度数据重传的DCI，第一定时器不应被启动或重启。从而，终端设备需缩短第一定时器的剩余运行时长，以减少终端设备的功耗。Optionally, after the terminal device receives the second DCI or the third DCI, the first timer is not started or restarted, indicating that after the terminal device receives the second DCI or the third DCI, it does not receive other DCI transmitted through unicast. , thereby not starting or restarting the first timer. Therefore, the starting or restarting of the first timer is due to the second DCI or the third DCI. However, the second DCI or the third DCI is actually a DCI that schedules data retransmission through multicast, and the first timer should not be started or restarted. Therefore, the terminal device needs to shorten the remaining running time of the first timer to reduce the power consumption of the terminal device.
可选的，“终端设备缩短的第一定时器的剩余运行时长”是根据以下任一项或多项确定的：终端设备因为第二DCI或第三DCI的接收而启动或重启第一定时器的时间点T1，T1时第一定时器的剩余运行时长STL，终端设备因为满足第一条件而缩短的第一定时器的剩余运行时长的时间点T2，第一定时器的预设时长YTL。Optionally, "the remaining running time of the first timer shortened by the terminal device" is determined based on any one or more of the following: the terminal device starts or restarts the first timer due to the reception of the second DCI or the third DCI. The time point T1, the remaining running time of the first timer STL at T1, the time point T2 at which the remaining running time of the first timer is shortened by the terminal device because the first condition is met, and the preset time length of the first timer YTL.
例如，若STL大于(T2-T1)，终端设备缩短的第一定时器的剩余运行时长包括：终端设备将第一定时器的剩余运行时长缩短为STL-(T2-T1)。For example, if STL is greater than (T2-T1), the remaining running time of the first timer shortened by the terminal equipment includes: the terminal equipment shortens the remaining running time of the first timer to STL-(T2-T1).
“(T2-T1)”为终端设备因为满足第一条件而缩短的第一定时器的剩余运行时长的时间点T2，与终端设备因为第二DCI或第三DCI的接收而启动或重启第一定时器的时间点T1之间的时间间隔。"(T2-T1)" is the time point T2 when the terminal equipment shortens the remaining running time of the first timer because the first condition is met, and the time point T2 when the terminal equipment starts or restarts the first timer because the terminal equipment receives the second DCI or the third DCI. The time interval between time points T1 of the timer.
例如，若STL小于或等于(T2-T1)，终端设备缩短的第一定时器的剩余运行时长包括：终端设备将第一定时器的剩余运行时长缩短为0，或，终端设备停止第一定时器。For example, if STL is less than or equal to (T2-T1), the remaining running time of the first timer shortened by the terminal device includes: the terminal device shortens the remaining running time of the first timer to 0, or the terminal device stops the first timer. device.
示例性的，如图9所示，终端设备在t0时刻因接收到通过单播方式传输的第四DCI而启动或重启了第一定时器，第一定时器的预设时长为10s，在t1时刻因接收到第二DCI或第三DCI(例如，终端设备将第二DCI或第三DCI对应的传输误判为单播新传)而启动或重启了第一定时器。t0时刻小于t1时刻，且t1时刻时，第一定时器的剩余运行时长为6s。那么，终端设备在t1时刻启动或重启第一定时器时，会将第一定时器的剩余运行时长从6s延长至10s，从而会为终端设备带来多余功耗。在t2时刻，终端设备确定满足第一条件，t2和t1之间间隔的时长为2s，且t2时刻时，第一定时器的剩余运行时长为8s。在t2时刻，终端设备可以将第一定时器的剩余运行时长从8s缩短至4s。可选的，若t2和t1之间间隔的时长大于t1时刻第一定时器的剩余运行时长，终端设备可以停止第一定时器，或者，终端设备可以终端设备可以将第一定时器的剩余运行时长缩短为0s。For example, as shown in Figure 9, the terminal device starts or restarts the first timer at time t0 due to receiving the fourth DCI transmitted through unicast. The preset timer of the first timer is 10s. At t1 The first timer is started or restarted at the moment due to receiving the second DCI or the third DCI (for example, the terminal device misjudges the transmission corresponding to the second DCI or the third DCI as a new unicast transmission). Time t0 is less than time t1, and at time t1, the remaining running time of the first timer is 6 seconds. Then, when the terminal device starts or restarts the first timer at time t1, the remaining running time of the first timer will be extended from 6s to 10s, which will bring excess power consumption to the terminal device. At time t2, the terminal device determines that the first condition is met, the interval between t2 and t1 is 2s, and at time t2, the remaining running time of the first timer is 8s. At time t2, the terminal device can shorten the remaining running time of the first timer from 8s to 4s. Optionally, if the interval between t2 and t1 is longer than the remaining running time of the first timer at time t1, the terminal device can stop the first timer, or the terminal device can stop the remaining running time of the first timer. The duration is shortened to 0s.
需要说明的是，终端设备未接收到第一DCI可以包括/替换为：条件7、条件5、条件6中的任一项或多项。例如，可以理解的是，在条件6对应的情况下，或，在条件7、条件5和条件6对应的情况下，第一数据包括第一LCID，终端设备可以确定终端设备未接收到第一DCI。It should be noted that the fact that the terminal device has not received the first DCI may include/replace with: any one or more of condition 7, condition 5, and condition 6. For example, it can be understood that in the case where condition 6 corresponds, or in the case where condition 7, condition 5 and condition 6 correspond, the first data includes the first LCID, and the terminal device may determine that the terminal device has not received the first LCID. DCI.
可选的，若第二RNTI为C-RNTI或第一RNTI为第一G-RNTI，第一条件还可以包括条件A。条件A如上述所述，不再赘述。Optionally, if the second RNTI is a C-RNTI or the first RNTI is a first G-RNTI, the first condition may also include condition A. Condition A is as described above and will not be described again.
可以理解的是，终端设备在条件A对应的情况下，终端设备接收到第三DCI或第二DCI，终端设备会因未接收到第一DCI，终端设备会将第三DCI或第二DCI对应的传输视为是单播新传，从而会启动或重启第一定时器，但网络设备并不会由于第二DCI或第三DCI启动或重启第一定时器，终端设备的单播DRX的激活时间与网络设备的不对齐，且终端设备的单播DRX的激活时间会比网络设备的长，所以会给终端设备带来不必要的功耗。因此，终端设备在第一条件下，可以停止第一定时器或缩短第一定时器的剩余运行时长，以减少终端设备的功耗。It can be understood that when the terminal device corresponds to condition A and the terminal device receives the third DCI or the second DCI, the terminal device will not receive the first DCI, so the terminal device will respond to the third DCI or the second DCI. The transmission is regarded as a new unicast transmission, so the first timer will be started or restarted, but the network device will not start or restart the first timer due to the second DCI or third DCI, and the activation of unicast DRX of the terminal device The time is not aligned with the network device, and the activation time of the unicast DRX of the terminal device will be longer than that of the network device, so unnecessary power consumption will be brought to the terminal device. Therefore, under the first condition, the terminal device can stop the first timer or shorten the remaining running time of the first timer to reduce the power consumption of the terminal device.
可选的，终端设备未接收到第一DCI可以包括/替换为：条件A。Optionally, the terminal device has not received the first DCI may include/replace with: condition A.
可以理解的是，在条件A对应的情况下，第一数据包括第一LCID，终端设备可以确定终端设备未接收到第一DCI。It can be understood that, in the case corresponding to condition A, the first data includes the first LCID, and the terminal device can determine that the terminal device has not received the first DCI.
可见，本申请实施例中，满足第一条件，终端设备执行控制组播关联的DRX处于激活时间，可避免终端设备无法接收通过组播方式传输的其他DCI，可以提高传输可靠性，降低传输时延。可选的，可以尽量将终端设备与接收该组播业务的其他终端设备以及网络设备的组播关联的DRX的激活时间对齐。满足第一条件，终端设备执行停止第一定时器或缩短第一定时器的剩余运行时长，有利于终端设备的节能，也可以避免终端设备不必要的上报CSI和SRS。It can be seen that in the embodiment of the present application, if the first condition is met and the DRX associated with the terminal device performing control multicast is in the activation time, it can prevent the terminal device from being unable to receive other DCI transmitted through multicast, improve the transmission reliability and reduce the transmission time. extension. Optionally, you can try to align the activation time of the DRX associated with the multicast of the terminal device and other terminal devices that receive the multicast service and the network device. When the first condition is met, the terminal device stops the first timer or shortens the remaining running time of the first timer, which is beneficial to energy saving of the terminal device and can also prevent the terminal device from unnecessary reporting of CSI and SRS.
四.通信方法200。4. Communication method 200.
本申请实施例提出一种通信方法200，图10是该通信方法200的流程示意图。该通信方法200从终端 设备侧的角度进行阐述。该通信方法200包括但不限于以下步骤：This embodiment of the present application proposes a communication method 200. Figure 10 is a schematic flowchart of the communication method 200. The communication method 200 is from the terminal Explained from the perspective of the equipment side. The communication method 200 includes but is not limited to the following steps:
S201.终端设备接收第五DCI和/或第二数据，或，终端设备在第一资源上接收第二数据。例如，对应的，网络设备发送以单播方式传输的第五DCI和/或第二数据，或，网络设备在第一资源上发送第二数据。S201. The terminal device receives the fifth DCI and/or the second data, or the terminal device receives the second data on the first resource. For example, correspondingly, the network device sends the fifth DCI and/or the second data transmitted in a unicast manner, or the network device sends the second data on the first resource.
第五DCI是通过单播方式传输的。The fifth DCI is transmitted via unicast.
第五DCI是通过单播方式传输的，可以包括/理解为：第二RNTI加扰的第一DCI，或，与第二RNTI相关联的第五DCI。The fifth DCI is transmitted in a unicast manner and may include/understand as: the first DCI scrambled by the second RNTI, or the fifth DCI associated with the second RNTI.
其中，第五DCI用于调度第二数据或以单播方式传输的第二数据。The fifth DCI is used to schedule the second data or the second data transmitted in unicast mode.
例如，第五DCI和/或第二数据与第一HARQ进程相关联。For example, the fifth DCI and/or the second data are associated with the first HARQ process.
第一资源为/包括与单播关联的资源/配置资源。The first resource is/includes a resource/configuration resource associated with unicast.
第一资源为/包括与单播关联的资源/配置资源可以理解为：第一资源为与单播对应的SPS资源。The first resource is/includes a resource/configuration resource associated with unicast. It can be understood that the first resource is an SPS resource corresponding to unicast.
例如，第一资源和/或第二数据与第二RNTI相关联。For example, the first resource and/or the second data are associated with the second RNTI.
例如，第二数据与第一HARQ进程相关联。For example, the second data is associated with the first HARQ process.
第二数据包括/为第一MAC PDU。The second data includes/is the first MAC PDU.
S202.满足第二条件，终端设备控制组播关联的DRX处于激活时间。S202. The second condition is met, and the terminal device controls the DRX associated with the multicast to be in the activation time.
第二条件包括：第二数据包括第二LCID。The second condition includes: the second data includes the second LCID.
其中，第二LCID为DTCH的标识。第一LCID与第一组播业务相关联。第一组播业务与第一RNTI相关联。Wherein, the second LCID is the identification of DTCH. The first LCID is associated with the first multicast service. The first multicast service is associated with the first RNTI.
可选的，组播关联的DRX与第一组播业务和/或第一RNTI相关联。Optionally, the multicast-associated DRX is associated with the first multicast service and/or the first RNTI.
“终端设备控制组播关联的DRX处于激活时间”相关的描述可以参考S103-1中内容，此处不再赘述。For descriptions related to "the DRX associated with multicast controlled by the terminal device is in activation time", please refer to the content in S103-1 and will not be repeated here.
可以理解的是，终端设备成功解码第二数据后，确定第二数据中包括第二LCID，确定第二数据包括第一组播业务相关的数据，那么可能后续还会发送通过组播方式传输的第一组播业务相关的DCI和/或数据，终端设备可以控制组播关联的DRX处于激活时间，以进一步接收后续可能的DCI和/或数据，有利于提高组播数据传输的可靠性，降低传输时延。It can be understood that after the terminal device successfully decodes the second data and determines that the second data includes the second LCID and determines that the second data includes data related to the first multicast service, it may subsequently send data transmitted through multicast. For DCI and/or data related to the first multicast service, the terminal device can control the DRX associated with the multicast to be at the activation time to further receive possible subsequent DCI and/or data, which is beneficial to improving the reliability of multicast data transmission and reducing Transmission delay.
可以理解的是，现有技术有可能会随着技术方案的演进而发生变化，本申请提供的技术方案并不限于所提供的现有技术。It can be understood that the existing technology may change with the evolution of technical solutions, and the technical solutions provided in this application are not limited to the existing technologies provided.
可以理解的是，本申请中不同实施例或者不同实施例中的部分步骤(例如，任一个或多个步骤)之间可以相互结合，形成新的实施例。可选的，不同实施例中的部分步骤或任一个或多个步骤可以包括某个实施例中的可选步骤，也可以包括某个实施例中的必选步骤，也可以包括某个实施例中的可选步骤和必选步骤，本申请不限定。It can be understood that different embodiments or partial steps (for example, any one or more steps) in different embodiments in this application can be combined with each other to form new embodiments. Optionally, some steps or any one or more steps in different embodiments may include optional steps in a certain embodiment, or may include mandatory steps in a certain embodiment, or may include steps in a certain embodiment. The optional steps and required steps are not limited by this application.
可以理解的是，如果没有特殊说明以及逻辑冲突，不同实施例之间的术语和/或描述具有一致性，且可以相互引用。It can be understood that, if there is no special explanation or logical conflict, the terms and/or descriptions between different embodiments are consistent and can be referenced to each other.
可以理解的是，本申请实施例中各步骤的先后顺序，本申请不限制。It can be understood that the order of each step in the embodiment of the present application is not limited by the present application.
可以理解的是，本申请实施例中不同条件的判断的先后顺序，本申请不限制。It can be understood that the order in which different conditions are judged in the embodiments of this application is not limited by this application.
可以理解的是，本申请中的“后”、“时”不严格限制时间点。It can be understood that "after" and "when" in this application do not strictly limit the time point.
五.通信装置。5. Communication devices.
为了实现上述本申请实施例提供的方法中的各功能，通信装置可以包括硬件结构和/或软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行，取决于技术方案的特定应用和设计约束条件。In order to implement each function in the method provided by the above embodiments of the present application, the communication device may include a hardware structure and/or a software module to implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether one of the above functions is performed as a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
如图11所示，本申请实施例提供了一种通信装置1100。该通信装置1100是终端设备的部件(例如，集成电路，芯片等等)。该通信装置1100也可以是其他通信单元，用于实现本申请方法实施例中的方法。该通信装置1100可以包括：通信单元1101和处理单元1102。可选的，还可以包括存储单元1103。As shown in Figure 11, an embodiment of the present application provides a communication device 1100. The communication device 1100 is a component of a terminal device (eg, integrated circuit, chip, etc.). The communication device 1100 may also be other communication units, used to implement the methods in the method embodiments of the present application. The communication device 1100 may include: a communication unit 1101 and a processing unit 1102. Optionally, a storage unit 1103 may also be included.
在一种可能的设计中，如图11中的一个或者多个单元可能由一个或者多个处理器来实现，或者由一个或者多个处理器和存储器来实现；或者由一个或多个处理器和收发器实现；或者由一个或者多个处理器、存储器和收发器实现，本申请实施例对此不作限定。所述处理器、存储器、收发器可以单独设置，也可以集成。In a possible design, one or more units as shown in Figure 11 may be implemented by one or more processors, or by one or more processors and memories; or by one or more processors and a transceiver; or may be implemented by one or more processors, memories, and transceivers, which are not limited in the embodiments of the present application. The processor, memory, and transceiver can be set separately or integrated.
所述通信装置1100具备实现本申请实施例描述的终端设备的功能。比如，所述通信装置1100包括终端设备执行本申请实施例描述的终端设备涉及步骤所对应的模块或单元或手段(means)，所述功能或单 元或手段(means)可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现，还可以通过软件和硬件结合的方式实现。详细可进一步参考前述对应方法实施例中的相应描述。The communication device 1100 has the function of implementing the terminal device described in the embodiment of this application. For example, the communication device 1100 includes modules or units or means (means) corresponding to the terminal equipment executing the steps involved in the terminal equipment described in the embodiments of this application. The functions or units are Elements or means can be implemented by software, or by hardware, or by hardware executing corresponding software implementation, or by a combination of software and hardware. For details, reference may be made to the corresponding descriptions in the foregoing corresponding method embodiments.
在一种可能的设计中，一种通信装置1100可包括：处理单元1102和通信单元1101；通信单元1101用于进行数据/信令收发；In a possible design, a communication device 1100 may include: a processing unit 1102 and a communication unit 1101; the communication unit 1101 is used to transmit and receive data/signaling;
处理单元1102，用于满足第一条件，执行以下一项或多项：The processing unit 1102 is used to satisfy the first condition and execute one or more of the following:
控制组播关联的非连续接收DRX处于激活时间；Controls the activation time of discontinuous reception DRX associated with multicast;
停止第一定时器或缩短第一定时器的剩余运行时长，所述第一定时器为与单播关联的DRX对应的非激活定时器；Stop the first timer or shorten the remaining running time of the first timer, where the first timer is an inactive timer corresponding to the DRX associated with unicast;
其中，所述第一条件包括：第一数据包括第一逻辑信道标识LCID，且未接收到第一下行控制信息DCI；Wherein, the first condition includes: the first data includes the first logical channel identifier LCID, and the first downlink control information DCI is not received;
所述第一数据是第二DCI调度的，所述第二DCI是通过单播方式传输的，所述第一LCID为第一组播广播服务业务信道MTCH的标识，所述第一DCI是通过组播方式传输的，所述第一DCI用于调度所述第一数据。The first data is scheduled by the second DCI, the second DCI is transmitted through unicast, the first LCID is the identifier of the first multicast broadcast service channel MTCH, and the first DCI is transmitted through Transmitted in a multicast manner, the first DCI is used to schedule the first data.
一种可选的实现方式中，处理单元1102控制组播关联的非连续接收DRX处于激活时间，具体用于：启动或重启以下定时器中的一项或多项：第二定时器、第三定时器、第四定时器；In an optional implementation, the processing unit 1102 controls the multicast associated discontinuous reception DRX to be in the activation time, specifically for: starting or restarting one or more of the following timers: the second timer, the third timer timer, fourth timer;
其中，所述第二定时器为与组播关联的DRX对应的非激活定时器，所述第三定时器为与组播关联的DRX对应的持续时间定时器，所述第四定时器为与组播关联的DRX对应的重传定时器。Wherein, the second timer is an inactivation timer corresponding to the DRX associated with the multicast, the third timer is a duration timer corresponding to the DRX associated with the multicast, and the fourth timer is an inactivation timer corresponding to the DRX associated with the multicast. The retransmission timer corresponding to the multicast-associated DRX.
一种可选的实现方式中，如果处理单元1102执行所述控制组播关联的非连续接收DRX处于激活时间，所述第一条件还包括以下任一项或多项：所述组播关联的DRX未处于激活时间；接收到所述第二DCI后，所述第二定时器未启动或重启；接收到第二DCI后，所述第二定时器未启动或重启，所述第三DCI用于调度所述第一数据，所述第三DCI在所述第二DCI之前。In an optional implementation, if the processing unit 1102 performs the control of the multicast-associated discontinuous reception DRX at the activation time, the first condition further includes any one or more of the following: the multicast-associated discontinuous reception DRX is at the activation time. DRX is not in the activation time; after receiving the second DCI, the second timer is not started or restarted; after receiving the second DCI, the second timer is not started or restarted, and the third DCI is used When scheduling the first data, the third DCI precedes the second DCI.
一种可选的实现方式中，如果处理单元1102执行所述停止第一定时器，所述第一条件还包括：接收到所述第二DCI或第三DCI，所述第一定时器未运行；和/或，接收到所述第二DCI或第三DCI后，所述第一定时器未启动或重启。In an optional implementation, if the processing unit 1102 executes the stopping of the first timer, the first condition further includes: the second DCI or the third DCI is received, and the first timer is not running. ; and/or, after receiving the second DCI or the third DCI, the first timer is not started or restarted.
一种可选的实现方式中，如果处理单元1102执行所述缩短第一定时器的剩余运行时长，所述第一条件还包括：接收到所述第二DCI或第三DCI，所述第一定时器运行；和/或，接收到所述第二DCI或第三DCI后，所述第一定时器未启动或重启。In an optional implementation, if the processing unit 1102 performs the shortening of the remaining running time of the first timer, the first condition further includes: receiving the second DCI or the third DCI, the first The timer is running; and/or, after receiving the second DCI or the third DCI, the first timer is not started or restarted.
一种可选的实现方式中，所述第二DCI是通过单播方式传输的包括：所述第二DCI是小区-无线网络临时标识符C-RNTI加扰的。In an optional implementation manner, the second DCI is transmitted in a unicast manner, including: the second DCI is scrambled by the cell-radio network temporary identifier C-RNTI.
一种可选的实现方式中，所述第一DCI是通过组播方式传输的包括：所述第一DCI是第一RNTI加扰的；其中，所述第一RNTI用于以下一项或多项：用于组播，用于调度组播动态资源，用于调度组播动态资源的重传资源。In an optional implementation, the first DCI is transmitted in a multicast manner, including: the first DCI is scrambled by a first RNTI; wherein the first RNTI is used for one or more of the following: Item: used for multicast, used for scheduling multicast dynamic resources, used for scheduling retransmission resources of multicast dynamic resources.
一种可选的实现方式中，所述第一LCID与第一RNTI相关联，和/或，所述组播关联的DRX与第一RNTI相关联；其中，所述第一RNTI用于以下一项或多项：用于组播，用于调度组播动态资源，用于调度组播动态资源的重传资源。In an optional implementation, the first LCID is associated with a first RNTI, and/or the multicast-associated DRX is associated with a first RNTI; wherein the first RNTI is used for the following One or more items: used for multicast, used for scheduling multicast dynamic resources, and used for scheduling retransmission resources of multicast dynamic resources.
本申请实施例和上述所示方法实施例基于同一构思，其带来的技术效果也相同，具体原理请参照上述所示实施例的描述，不再赘述。The embodiments of the present application and the method embodiments shown above are based on the same concept, and the technical effects they bring are also the same. For specific principles, please refer to the description of the embodiments shown above, which will not be described again.
本申请实施例还提供一种通信装置1200，图12为通信装置1200的结构示意图。所述通信装置1200可以是终端设备，也可以是支持终端设备实现上述方法的芯片、芯片***、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。An embodiment of the present application also provides a communication device 1200. FIG. 12 is a schematic structural diagram of the communication device 1200. The communication device 1200 may be a terminal device, or may be a chip, chip system, or processor that supports the terminal device to implement the above method. The device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.
所述通信装置1200可以包括一个或多个处理器1201。所述处理器1201可以是通用处理器或者专用处理器等。例如可以是基带处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或中央处理器(central processing unit，CPU)。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，终端、终端芯片，分布单元(distributed unit，DU)或集中单元(centralized unit，CU)等)进行控制，执行软件程序，处理软件程序的数据。The communication device 1200 may include one or more processors 1201. The processor 1201 may be a general-purpose processor or a special-purpose processor. For example, it can be a baseband processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, and the central processor can be used to process communication devices (such as base stations, baseband chips, terminals, terminal chips, distributed units (DU) or centralized units (centralized units)). unit, CU), etc.) to control, execute software programs, and process data of software programs.
可选的，所述通信装置1200中可以包括一个或多个存储器1202，其上可以存有指令1204，所述指令可在所述处理器1201上被运行，使得所述通信装置1200执行上述方法实施例中描述的方法。可选的，所述存储器1202中还可以存储有数据。所述处理器1201和存储器1202可以单独设置，也可以集成在一起。 Optionally, the communication device 1200 may include one or more memories 1202, on which instructions 1204 may be stored, and the instructions may be executed on the processor 1201, causing the communication device 1200 to perform the above method. Methods described in the Examples. Optionally, the memory 1202 may also store data. The processor 1201 and the memory 1202 can be provided separately or integrated together.
存储器1202可包括但不限于硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)等非易失性存储器，随机存储记忆体(Random Access Memory，RAM)、可擦除可编程只读存储器(Erasable Programmable ROM，EPROM)、ROM或便携式只读存储器(Compact Disc Read-Only Memory，CD-ROM)等等。The memory 1202 may include, but is not limited to, non-volatile memories such as hard disk drive (HDD) or solid-state drive (SSD), random access memory (Random Access Memory, RAM), erasable and programmable memory. Read-only memory (Erasable Programmable ROM, EPROM), ROM or portable read-only memory (Compact Disc Read-Only Memory, CD-ROM), etc.
可选的，所述通信装置1200还可以包括收发器1205、天线1206。所述收发器1205可以称为收发单元、收发机、或收发电路等，用于实现收发功能。收发器1205可以包括接收器和发送器，接收器可以称为接收机或接收电路等，用于实现接收功能；发送器可以称为发送机或发送电路等，用于实现发送功能。Optionally, the communication device 1200 may also include a transceiver 1205 and an antenna 1206. The transceiver 1205 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions. The transceiver 1205 may include a receiver and a transmitter. The receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function; the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.
所述通信装置1200为终端设备：处理器1201用于执行上述通信方法100中的S103，以及通信方法200中的S202；收发器1205用于执行上述通信方法100中的S101、S102，以及通信方法200中的S201。The communication device 1200 is a terminal device: the processor 1201 is used to execute S103 in the communication method 100 and S202 in the communication method 200; the transceiver 1205 is used to execute S101 and S102 in the communication method 100 and the communication method. S201 in 200.
另一种可能的设计中，处理器1201中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。In another possible design, the processor 1201 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together. The above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.
又一种可能的设计中，可选的，处理器1201可以存有指令1203，指令1203在处理器1201上运行，可使得所述通信装置1200执行上述方法实施例中描述的方法。指令1203可能固化在处理器1201中，该种情况下，处理器1201可能由硬件实现。In another possible design, optionally, the processor 1201 can store instructions 1203, and the instructions 1203 are run on the processor 1201, which can cause the communication device 1200 to execute the method described in the above method embodiment. The instructions 1203 may be fixed in the processor 1201, in which case the processor 1201 may be implemented by hardware.
又一种可能的设计中，通信装置1200可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本申请实施例中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路(radio frequency integrated circuit，RFIC)、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor，PMOS)、双极结型晶体管(Bipolar Junction Transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。In another possible design, the communication device 1200 may include a circuit, and the circuit may implement the sending or receiving or communication functions in the foregoing method embodiments. The processor and transceiver described in the embodiments of this application can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed signal ICs, application specific integrated circuits (application specific integrated circuits). circuit (ASIC), printed circuit board (PCB), electronic equipment, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (Bipolar Junction Transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
以上实施例描述中的通信装置可以是第一装置，但本申请实施例中描述的通信装置的范围并不限于此，而且通信装置的结构可以不受图12的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是：The communication device described in the above embodiments may be the first device, but the scope of the communication device described in the embodiments of the present application is not limited thereto, and the structure of the communication device may not be limited by FIG. 12 . The communication device may be a stand-alone device or may be part of a larger device. For example, the communication device may be:
(1)独立的集成电路IC，或芯片，或，芯片***或子***；(1) Independent integrated circuit IC, or chip, or chip system or subsystem;
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，指令的存储部件；(2) A collection of one or more ICs. Optionally, the IC collection may also include a storage component for storing data and instructions;
(3)ASIC，例如调制解调器(modulator)；(3)ASIC, such as modem (modulator);
(4)可嵌入在其他设备内的模块；(4) Modules that can be embedded in other devices;
对于通信装置可以是芯片或芯片***的情况，可参见图13所示的芯片的结构示意图。图13所示的芯片1300包括处理器1301和接口1302。其中，处理器1301的数量可以是一个或多个，接口1302的数量可以是多个。该处理器1301可以是逻辑电路，该接口1302可以是输入输出接口、输入接口或输出接口。所述芯片1300还可包括存储器1303。For the case where the communication device may be a chip or a chip system, refer to the schematic structural diagram of the chip shown in FIG. 13 . The chip 1300 shown in FIG. 13 includes a processor 1301 and an interface 1302. The number of processors 1301 may be one or more, and the number of interfaces 1302 may be multiple. The processor 1301 may be a logic circuit, and the interface 1302 may be an input-output interface, an input interface or an output interface. The chip 1300 may also include memory 1303 .
一种设计中，对于芯片用于实现本申请实施例中终端设备的功能的情况：In one design, for the case where the chip is used to implement the functions of the terminal device in the embodiment of the present application:
所述处理器1301，用于满足第一条件，执行以下一项或多项：The processor 1301 is used to satisfy the first condition and execute one or more of the following:
控制组播关联的非连续接收DRX处于激活时间；Controls the activation time of discontinuous reception DRX associated with multicast;
停止第一定时器或缩短第一定时器的剩余运行时长，所述第一定时器为与单播关联的DRX对应的非激活定时器；Stop the first timer or shorten the remaining running time of the first timer, where the first timer is an inactive timer corresponding to the DRX associated with unicast;
其中，所述第一条件包括：第一数据包括第一逻辑信道标识LCID，且未接收到第一下行控制信息DCI；Wherein, the first condition includes: the first data includes the first logical channel identifier LCID, and the first downlink control information DCI is not received;
所述第一数据是第二DCI调度的，所述第二DCI是通过单播方式传输的，所述第一LCID为第一组播广播服务业务信道MTCH的标识，所述第一DCI是通过组播方式传输的，所述第一DCI用于调度所述第一数据。The first data is scheduled by the second DCI, the second DCI is transmitted through unicast, the first LCID is the identifier of the first multicast broadcast service channel MTCH, and the first DCI is transmitted through Transmitted in a multicast manner, the first DCI is used to schedule the first data.
本申请实施例中通信装置1200、芯片1300还可执行上述通信装置1100所述的实现方式。本领域技术人员还可以了解到本申请实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个***的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能， 但这种实现不应被理解为超出本申请实施例保护的范围。In the embodiment of the present application, the communication device 1200 and the chip 1300 can also perform the implementation described above for the communication device 1100. Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of this application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented in hardware or software depends on the specific application and overall system design requirements. Those skilled in the art can use various methods to achieve the described functions for each specific application. However, this implementation should not be understood as exceeding the protection scope of the embodiments of this application.
本申请实施例和上述通信方法100和通信方法200所示方法实施例基于同一构思，其带来的技术效果也相同，具体原理请参照上述通信方法100和通信方法200所示实施例的描述，不再赘述。The embodiments of this application are based on the same concept as the method embodiments shown in the above communication method 100 and communication method 200, and the technical effects they bring are also the same. For specific principles, please refer to the description of the embodiments shown in the above communication method 100 and communication method 200. No longer.
本申请还提供了一种计算机可读存储介质，用于储存计算机软件指令，当所述指令被通信装置执行时，实现上述任一方法实施例的功能。This application also provides a computer-readable storage medium for storing computer software instructions. When the instructions are executed by a communication device, the functions of any of the above method embodiments are implemented.
本申请还提供了一种计算机程序产品，用于储存计算机软件指令，当所述指令被通信装置执行时，实现上述任一方法实施例的功能。This application also provides a computer program product for storing computer software instructions. When the instructions are executed by a communication device, the functions of any of the above method embodiments are implemented.
本申请还提供了一种计算机程序，当其在计算机上运行时，实现上述任一方法实施例的功能。This application also provides a computer program that, when run on a computer, implements the functions of any of the above method embodiments.
本申请还提供了一种通信***，该***包括一个或多个网络设备，以及一个或多个终端设备。在另一种可能的设计中，该***还可以包括本申请提供的方案中与网络设备、终端设备进行交互的其他设备。This application also provides a communication system, which includes one or more network devices and one or more terminal devices. In another possible design, the system may also include other devices that interact with network devices and terminal devices in the solution provided by this application.
上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，SSD)等。The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated. The available media may be magnetic media (eg, floppy disk, hard disk, tape), optical media (eg, high-density digital video disc (DVD)), or semiconductor media (eg, SSD), etc.
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。 The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (21)

  1. 一种通信方法，其特征在于，所述方法包括：A communication method, characterized in that the method includes:
    满足第一条件，执行以下一项或多项：To meet the first condition, do one or more of the following:
    控制组播关联的非连续接收DRX处于激活时间；Controls the activation time of discontinuous reception DRX associated with multicast;
    停止第一定时器或缩短第一定时器的剩余运行时长，所述第一定时器为与单播关联的DRX对应的非激活定时器；Stop the first timer or shorten the remaining running time of the first timer, where the first timer is an inactive timer corresponding to the DRX associated with unicast;
    其中，所述第一条件包括：第一数据包括第一逻辑信道标识LCID，且未接收到第一下行控制信息DCI；Wherein, the first condition includes: the first data includes the first logical channel identifier LCID, and the first downlink control information DCI is not received;
    所述第一数据是第二DCI调度的，所述第二DCI是通过单播方式传输的，所述第一LCID为第一组播广播服务业务信道MTCH的标识，所述第一DCI是通过组播方式传输的，所述第一DCI用于调度所述第一数据。The first data is scheduled by the second DCI, the second DCI is transmitted through unicast, the first LCID is the identifier of the first multicast broadcast service channel MTCH, and the first DCI is transmitted through Transmitted in a multicast manner, the first DCI is used to schedule the first data.
  2. 根据权利要求1所述的方法，其特征在于，所述控制组播关联的非连续接收DRX处于激活时间，包括：The method according to claim 1, characterized in that the discontinuous reception DRX associated with the control multicast is in an activation time, including:
    启动或重启以下定时器中的一项或多项：第二定时器、第三定时器、第四定时器；Start or restart one or more of the following timers: second timer, third timer, fourth timer;
    其中，所述第二定时器为与组播关联的DRX对应的非激活定时器，所述第三定时器为与组播关联的DRX对应的持续时间定时器，所述第四定时器为与组播关联的DRX对应的重传定时器。Wherein, the second timer is an inactivation timer corresponding to the DRX associated with the multicast, the third timer is a duration timer corresponding to the DRX associated with the multicast, and the fourth timer is an inactivation timer corresponding to the DRX associated with the multicast. The retransmission timer corresponding to the multicast-associated DRX.
  3. 根据权利要求1或2所述的方法，其特征在于，如果执行所述控制组播关联的非连续接收DRX处于激活时间，所述第一条件还包括以下任一项或多项：The method according to claim 1 or 2, characterized in that if the discontinuous reception DRX that performs the control multicast association is at the activation time, the first condition further includes any one or more of the following:
    所述组播关联的DRX未处于激活时间；The DRX associated with the multicast is not in the activation time;
    接收到所述第二DCI后，所述第二定时器未启动或重启；After receiving the second DCI, the second timer is not started or restarted;
    接收到第三DCI后，所述第二定时器未启动或重启，所述第三DCI用于调度所述第一数据，所述第三DCI在所述第二DCI之前。After receiving the third DCI, the second timer is not started or restarted, the third DCI is used to schedule the first data, and the third DCI is before the second DCI.
  4. 根据权利要求1-3任一项所述的方法，其特征在于，如果执行所述控制组播关联的非连续接收DRX处于激活时间，所述第一条件还包括：The method according to any one of claims 1 to 3, characterized in that if the discontinuous reception DRX for performing the control multicast association is in the activation time, the first condition further includes:
    第二时长小于所述第二定时器的配置时长，所述第二时长为从所述终端设备接收所述第二DCI或所述第三DCI到所述终端设备成功解码所述第一数据的时长。The second duration is less than the configured duration of the second timer, and the second duration is from when the terminal device receives the second DCI or the third DCI to when the terminal device successfully decodes the first data. duration.
  5. 根据权利要求1至4任一项所述的方法，其特征在于，如果执行所述停止第一定时器，所述第一条件还包括：The method according to any one of claims 1 to 4, characterized in that if the stopping of the first timer is executed, the first condition further includes:
    接收到所述第二DCI或第三DCI，所述第一定时器未运行；和/或，The second DCI or the third DCI is received and the first timer is not running; and/or,
    接收到所述第二DCI或第三DCI后，所述第一定时器未启动或重启。After receiving the second DCI or the third DCI, the first timer is not started or restarted.
  6. 根据权利要求1至4任一项所述的方法，其特征在于，如果执行所述缩短第一定时器的剩余运行时长，所述第一条件还包括：The method according to any one of claims 1 to 4, characterized in that if the shortening of the remaining running time of the first timer is performed, the first condition further includes:
    接收到所述第二DCI或第三DCI，所述第一定时器运行；和/或，The second DCI or the third DCI is received, and the first timer runs; and/or,
    接收到所述第二DCI或第三DCI后，所述第一定时器未启动或重启。After receiving the second DCI or the third DCI, the first timer is not started or restarted.
  7. 根据权利要求1至6任一项所述的方法，其特征在于，所述第二DCI是通过单播方式传输的包括：The method according to any one of claims 1 to 6, characterized in that the second DCI is transmitted in a unicast manner, including:
    所述第二DCI是小区-无线网络临时标识符C-RNTI加扰的。The second DCI is the cell-radio network temporary identifier C-RNTI scrambled.
  8. 根据权利要求1至7任一项所述的方法，其特征在于，所述第一DCI是通过组播方式传输的包括：The method according to any one of claims 1 to 7, characterized in that the first DCI is transmitted through multicast, including:
    所述第一DCI是第一RNTI加扰的；The first DCI is scrambled by the first RNTI;
    其中，所述第一RNTI用于以下一项或多项：用于组播，用于调度组播动态资源，用于调度组播动态资源的重传资源。Wherein, the first RNTI is used for one or more of the following: used for multicast, used for scheduling multicast dynamic resources, and used for scheduling retransmission resources of multicast dynamic resources.
  9. 根据权利要求1至8任一项所述的方法，其特征在于，The method according to any one of claims 1 to 8, characterized in that,
    所述第一LCID与第一RNTI相关联，和/或，所述组播关联的DRX与第一RNTI相关联；The first LCID is associated with the first RNTI, and/or the multicast-associated DRX is associated with the first RNTI;
    其中，所述第一RNTI用于以下一项或多项：用于组播，用于调度组播动态资源，用于调度组播动态资源的重传资源。Wherein, the first RNTI is used for one or more of the following: used for multicast, used for scheduling multicast dynamic resources, and used for scheduling retransmission resources of multicast dynamic resources.
  10. 一种通信装置，其特征在于，所述装置包括处理单元，所述处理单元用于：A communication device, characterized in that the device includes a processing unit, and the processing unit is used for:
    满足第一条件，执行以下一项或多项：To meet the first condition, do one or more of the following:
    控制组播关联的非连续接收DRX处于激活时间； Controls the activation time of discontinuous reception DRX associated with multicast;
    停止第一定时器或缩短第一定时器的剩余运行时长，所述第一定时器为与单播关联的DRX对应的非激活定时器；Stop the first timer or shorten the remaining running time of the first timer, where the first timer is an inactive timer corresponding to the DRX associated with unicast;
    其中，所述第一条件包括：第一数据包括第一逻辑信道标识LCID，且未接收到第一下行控制信息DCI；Wherein, the first condition includes: the first data includes the first logical channel identifier LCID, and the first downlink control information DCI is not received;
    所述第一数据是第二DCI调度的，所述第二DCI是通过单播方式传输的，所述第一LCID为第一组播广播服务业务信道MTCH的标识，所述第一DCI是通过组播方式传输的，所述第一DCI用于调度所述第一数据。The first data is scheduled by the second DCI, the second DCI is transmitted through unicast, the first LCID is the identifier of the first multicast broadcast service channel MTCH, and the first DCI is transmitted through Transmitted in a multicast manner, the first DCI is used to schedule the first data.
  11. 根据权利要求10所述的装置，其特征在于，所述处理单元控制组播关联的非连续接收DRX处于激活时间，具体用于：The device according to claim 10, characterized in that the processing unit controls the discontinuous reception DRX associated with multicast to be at the activation time, specifically for:
    启动或重启以下定时器中的一项或多项：第二定时器、第三定时器、第四定时器；Start or restart one or more of the following timers: second timer, third timer, fourth timer;
    其中，所述第二定时器为与组播关联的DRX对应的非激活定时器，所述第三定时器为与组播关联的DRX对应的持续时间定时器，所述第四定时器为与组播关联的DRX对应的重传定时器。Wherein, the second timer is an inactivation timer corresponding to the DRX associated with the multicast, the third timer is a duration timer corresponding to the DRX associated with the multicast, and the fourth timer is an inactivation timer corresponding to the DRX associated with the multicast. The retransmission timer corresponding to the multicast-associated DRX.
  12. 根据权利要求10或11所述的装置，其特征在于，如果所述处理单元执行所述控制组播关联的非连续接收DRX处于激活时间，所述第一条件还包括以下任一项或多项：The device according to claim 10 or 11, characterized in that if the processing unit executes the control multicast associated discontinuous reception DRX is at the activation time, the first condition further includes any one or more of the following :
    所述组播关联的DRX未处于激活时间；The DRX associated with the multicast is not in the activation time;
    接收到所述第二DCI后，所述第二定时器未启动或重启；或，After receiving the second DCI, the second timer is not started or restarted; or,
    接收到第三DCI后，所述第二定时器未启动或重启，所述第三DCI用于调度所述第一数据，所述第三DCI在所述第二DCI之前。After receiving the third DCI, the second timer is not started or restarted, the third DCI is used to schedule the first data, and the third DCI is before the second DCI.
  13. 根据权利要求10-12任一项所述的装置，其特征在于，如果所述处理单元执行所述控制组播关联的非连续接收DRX处于激活时间，所述第一条件还包括：The device according to any one of claims 10 to 12, wherein if the processing unit executes the control multicast associated discontinuous reception DRX is in the activation time, the first condition further includes:
    第二时长小于所述第二定时器的配置时长，所述第二时长为从所述终端设备接收所述第二DCI或所述第三DCI到所述终端设备成功解码所述第一数据的时长。The second duration is less than the configured duration of the second timer, and the second duration is from when the terminal device receives the second DCI or the third DCI to when the terminal device successfully decodes the first data. duration.
  14. 根据权利要求10至13任一项所述的装置，其特征在于，如果所述处理单元执行所述停止第一定时器，所述第一条件还包括：The device according to any one of claims 10 to 13, wherein if the processing unit executes the stopping of the first timer, the first condition further includes:
    接收到所述第二DCI或第三DCI，所述第一定时器未运行；和/或，The second DCI or the third DCI is received and the first timer is not running; and/or,
    接收到所述第二DCI或第三DCI后，所述第一定时器未启动或重启。After receiving the second DCI or the third DCI, the first timer is not started or restarted.
  15. 根据权利要求10至12任一项所述的装置，其特征在于，如果所述处理单元执行所述缩短第一定时器的剩余运行时长，所述第一条件还包括：The device according to any one of claims 10 to 12, wherein if the processing unit executes the shortening of the remaining running time of the first timer, the first condition further includes:
    接收到所述第二DCI或第三DCI，所述第一定时器运行；和/或，The second DCI or the third DCI is received, and the first timer runs; and/or,
    接收到所述第二DCI或第三DCI后，所述第一定时器未启动或重启。After receiving the second DCI or the third DCI, the first timer is not started or restarted.
  16. 根据权利要求10至15任一项所述的装置，其特征在于，所述第二DCI是通过单播方式传输的包括：The device according to any one of claims 10 to 15, characterized in that the second DCI is transmitted in a unicast manner and includes:
    所述第二DCI是小区-无线网络临时标识符C-RNTI加扰的。The second DCI is the cell-radio network temporary identifier C-RNTI scrambled.
  17. 根据权利要求10至16任一项所述的装置，其特征在于，所述第一DCI是通过组播方式传输的包括：The device according to any one of claims 10 to 16, wherein the first DCI is transmitted through multicast and includes:
    所述第一DCI是第一RNTI加扰的；The first DCI is scrambled by the first RNTI;
    其中，所述第一RNTI用于以下一项或多项：用于组播，用于调度组播动态资源，用于调度组播动态资源的重传资源。Wherein, the first RNTI is used for one or more of the following: used for multicast, used for scheduling multicast dynamic resources, and used for scheduling retransmission resources of multicast dynamic resources.
  18. 根据权利要求10至17任一项所述的装置，其特征在于，The device according to any one of claims 10 to 17, characterized in that,
    所述第一LCID与第一RNTI相关联，和/或，所述组播关联的DRX与第一RNTI相关联；The first LCID is associated with the first RNTI, and/or the multicast-associated DRX is associated with the first RNTI;
    其中，所述第一RNTI用于以下一项或多项：用于组播，用于调度组播动态资源，用于调度组播动态资源的重传资源。Wherein, the first RNTI is used for one or more of the following: used for multicast, used for scheduling multicast dynamic resources, and used for scheduling retransmission resources of multicast dynamic resources.
  19. 一种通信装置，其特征在于，包括处理器和收发器，所述收发器用于与其它通信装置进行通信；所述处理器用于运行程序，以使得所述通信装置实现权利要求1至9任一项所述的方法。A communication device, characterized in that it includes a processor and a transceiver, the transceiver is used to communicate with other communication devices; the processor is used to run a program, so that the communication device implements any one of claims 1 to 9 method described in the item.
  20. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质用于存储有指令，当其在计算机上运行时，使得权利要求1至9任一项所述的方法被执行。A computer-readable storage medium, characterized in that the computer-readable storage medium is used to store instructions that, when run on a computer, cause the method described in any one of claims 1 to 9 to be executed.
  21. 一种包含指令的计算机程序产品，其特征在于，当其在计算机上运行时，使得权利要求1至9任一项所述的方法被执行。 A computer program product containing instructions, characterized in that, when run on a computer, the method according to any one of claims 1 to 9 is executed.
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