WO2022068611A1 - 侧行链路的传输方法和终端 - Google Patents
侧行链路的传输方法和终端 Download PDFInfo
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- WO2022068611A1 WO2022068611A1 PCT/CN2021/119003 CN2021119003W WO2022068611A1 WO 2022068611 A1 WO2022068611 A1 WO 2022068611A1 CN 2021119003 W CN2021119003 W CN 2021119003W WO 2022068611 A1 WO2022068611 A1 WO 2022068611A1
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- H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
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- H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
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Definitions
- the present application relates to the field of communications, and more particularly, to a sidelink transmission method and terminal.
- D2D communication is a transmission technology based on Sidelink (SL). Different from the traditional cellular system in which the communication data is received or sent through the base station, the D2D system has higher spectral efficiency and lower transmission delay. Vehicle to Everything (V2X) system adopts terminal-to-terminal direct communication. In the sideline transmission system, how to reduce the power consumption of the terminal is a problem that needs to be studied.
- SL Sidelink
- the embodiments of the present application provide a sidelink transmission method and terminal, which can reduce the power consumption of the terminal.
- An embodiment of the present application provides a sidelink transmission method, including:
- the terminal receives the sideline indication information
- the terminal enters an awake state or a sleep state according to the sideline indication information.
- An embodiment of the present application provides a terminal, including:
- a receiving unit used for receiving side line indication information
- the processing unit is configured to enter the wake-up state or the sleep state according to the sideline indication information.
- An embodiment of the present application provides a terminal device, including a processor and a memory.
- the memory is used for storing a computer program
- the processor is used for calling and running the computer program stored in the memory, so that the terminal device executes the above-mentioned transmission method of the side link.
- An embodiment of the present application provides a chip for implementing the above-mentioned transmission method of a sidelink.
- the chip includes: a processor for calling and running a computer program from the memory, so that the device on which the chip is installed executes the above-mentioned transmission method of the side link.
- Embodiments of the present application provide a computer-readable storage medium for storing a computer program, and when the computer program is executed by a device, the device enables the device to execute the above-mentioned transmission method for a sidelink.
- An embodiment of the present application provides a computer program product, including computer program instructions, and the computer program instructions cause a computer to execute the above-mentioned sidelink transmission method.
- An embodiment of the present application provides a computer program, which, when running on a computer, causes the computer to execute the above-mentioned transmission method of a sidelink.
- the sideline indication information is used to instruct the terminal to enter the wake-up state or the sleep state, so that the terminal can enter the sleep state when no data is received, thereby reducing the power consumption of the terminal and realizing energy saving.
- FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present application.
- Figure 2a is a schematic diagram of inbound communication within a network coverage area.
- FIG. 2b is a schematic diagram of partial network coverage sideline communication.
- Figure 2c is a schematic diagram of network coverage outside the row communication.
- Figure 3a is a schematic diagram of unicast transmission.
- Figure 3b is a schematic diagram of multicast transmission.
- Figure 3c is a schematic diagram of broadcast transmission.
- Figure 4 is a schematic diagram of the DRX mechanism.
- FIG. 5 is a schematic diagram of the power-saving wake-up signal controlling DRX.
- FIG. 6 is a schematic flowchart of a sidelink transmission method according to an embodiment of the present application.
- FIG. 7 is a schematic diagram of a sequence carrying sideline indication information.
- Figure 8 is a schematic diagram of no sequence detected.
- FIG. 9 is a schematic diagram of not performing sequence detection in a sleep state.
- FIG. 10 is a schematic diagram of the structure of a sequence carrying indication information.
- FIG. 11 is a schematic diagram 1 of the first time range.
- FIG. 12 is a second schematic diagram of the first time range.
- FIG. 13 is a schematic block diagram of a terminal according to an embodiment of the present application.
- FIG. 14 is a schematic block diagram of a communication device according to an embodiment of the present application.
- FIG. 15 is a schematic block diagram of a chip according to an embodiment of the present application.
- FIG. 16 is a schematic block diagram of a communication system according to an embodiment of the present application.
- GSM Global System of Mobile communication
- CDMA Code Division Multiple Access
- CDMA Wideband Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- LTE-A Advanced Long Term Evolution
- New Radio, NR evolution system of NR system
- LTE Long Term Evolution-based access to unlicensed spectrum, LTE-U
- NR NR-based access to unlicensed spectrum on unlicensed spectrum
- NR-U Non-Terrestrial Networks
- NTN Universal Mobile Telecommunication System
- UMTS Universal Mobile Telecommunication System
- WLAN Wireless Fidelity
- WiFi Wireless Fidelity
- D2D Device to Device
- M2M Machine to Machine
- MTC Machine Type Communication
- V2V Vehicle to Vehicle
- V2X Vehicle to everything
- the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
- Carrier Aggregation, CA Carrier Aggregation, CA
- DC Dual Connectivity
- SA standalone
- the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.
- the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, and remote station. , remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
- user equipment User Equipment
- UE User Equipment
- access terminal subscriber unit, subscriber station, mobile station, mobile station, and remote station.
- remote terminal mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
- the terminal device can be a station (STAION, ST) in the WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
- STAION, ST in the WLAN
- SIP Session Initiation Protocol
- WLL Wireless Local Loop
- PDA Personal Digital Assistant
- the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).
- the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
- a mobile phone Mobile Phone
- a tablet computer Pad
- a computer with a wireless transceiver function a virtual reality (Virtual Reality, VR) terminal device
- augmented reality (Augmented Reality, AR) terminal Equipment wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
- the terminal device may also be a wearable device.
- Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
- a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
- wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
- the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks
- the network device may have a mobile feature, for example, the network device may be a mobile device.
- the network device may be a satellite or a balloon station.
- the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc.
- the network device may also be a base station set in a location such as land or water.
- a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device (
- the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell).
- Pico cell Femto cell (Femto cell), etc.
- These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
- FIG. 1 exemplarily shows a communication system 100 .
- the communication system includes one network device 110 and two terminal devices 120 .
- the communication system 100 may include multiple network devices 110, and the coverage of each network device 110 may include other numbers of terminal devices 120, which are not limited in this embodiment of the present application.
- the communication system 100 may further include a mobility management entity (Mobility Management Entity, MME), an access and mobility management function (Access and Mobility Management Function, AMF) and other network entities, to which the embodiments of the present application Not limited.
- MME Mobility Management Entity
- AMF Access and Mobility Management Function
- the network equipment may further include access network equipment and core network equipment. That is, the wireless communication system further includes a plurality of core networks for communicating with the access network equipment.
- the access network equipment may be a long-term evolution (long-term evolution, LTE) system, a next-generation (mobile communication system) (nextradio, NR) system, or an authorized auxiliary access long-term evolution (authorized auxiliary access long-term evolution, LAA-LTE) system ) system in the evolutional base station (evolutional node B, may be referred to as eNB or e-NodeB) macro base station, micro base station (also called “small base station"), pico base station, access point (AP), transmission Site (transmission point, TP) or a new generation of base station (new generationNode B, gNodeB) and so on.
- LTE long-term evolution
- NR next-generation
- LAA-LTE authorized auxiliary access long-term evolution
- LAA-LTE authorized auxiliary access long-term evolution
- a device having a communication function in the network/system may be referred to as a communication device.
- the communication device may include a network device and a terminal device with a communication function, and the network device and the terminal device may be specific devices in this embodiment of the application, which will not be repeated here; It may include other devices in the communication system, for example, other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
- the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship.
- a indicates B it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
- corresponding may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.
- sideline communication it can be divided into various types according to the coverage of the network where the communicating terminal is located.
- the network covers the inner row communication, part of the network covers the side row communication, and the network covers the outer row communication, as shown in Fig. 2a, Fig. 2b and Fig. 2c, respectively.
- Fig. 2b in the case of partial network coverage of sideline communication, some terminals performing sideline communication are located within the coverage of the base station. This part of the terminals can receive the configuration signaling of the base station, and perform sideline communication according to the configuration of the base station. However, the terminal located outside the network coverage cannot receive the configuration signaling of the base station. In this case, the terminal outside the network coverage will determine the sidelink configuration according to the pre-configuration information and the information carried in the sidelink broadcast channel PSBCH sent by the terminal located in the network coverage area, and perform sidelink communication .
- a first mode two transmission modes are included in 3GPP: a first mode and a second mode.
- the first mode the transmission resources of the terminal are allocated by the base station.
- the terminal transmits data on the sidelink according to the resources allocated by the base station.
- the base station may allocate resources for a single transmission to the terminal, or may allocate resources for semi-static transmission to the terminal.
- the terminal is located within the coverage of the network, and the network allocates transmission resources for sideline transmission to the terminal.
- the second mode the terminal selects a resource in the resource pool for data transmission.
- the terminal is located outside the coverage of the cell, and the terminal autonomously selects transmission resources in the preconfigured resource pool to perform lateral transmission.
- the terminal autonomously selects transmission resources from the resource pool configured by the network to perform sideline transmission.
- unicast transmission there is only one terminal at the receiving end.
- unicast transmission is performed between UE1 and UE2.
- the receivers are all terminals in a communication group, or all terminals within a certain transmission distance.
- UE1, UE2, UE3 and UE4 form a communication group, wherein UE1 sends data, and other terminal devices in the group are receiver terminals.
- the receiver is any terminal around the sender terminal.
- UE1 is a transmitting terminal, and other terminals around it, UE2-UE6, are all receiving terminals.
- the User Equipment In a wireless network, when data needs to be transmitted, the User Equipment (UE) must always monitor the Physical Downlink Control Channel (PDCCH), and send and receive data according to the instruction message sent by the network side. In this way, the power consumption of the UE and the delay of data transmission are relatively large. Therefore, the 3GPP standard protocol introduces a discontinuous reception (Discontinuous Reception, DRX) energy saving strategy in the LTE system.
- DRX discontinuous Reception
- the basic mechanism of DRX is to configure a DRX cycle (DRX cycle) for the UE in the Radio Resource Control Connected (Radio Resource Control Connected, RRC_CONNECTED) state.
- the DRX cycle consists of "On Duration (continuous state)” and “OffDuration (not receiving state)”: within the "On Duration” time, the UE monitors and receives the Physical Downlink Control Channel (PDCCH), which is called activation During the "OffDuration" time, the UE does not receive the PDCCH to reduce power consumption, which is called the sleep period.
- PDCH Physical Downlink Control Channel
- the terminal controls the On Duration and Off Duration of the terminal according to some timer parameters configured by the network. If the data scheduling is received during the On Duration period, the terminal continues to monitor the PDCCH based on the control of the DRX timer until the data transmission is completed. Otherwise, if the terminal does not receive data scheduling during On Duration, the terminal enters Off Duration to save energy.
- the NR Rel-16 energy-saving wake-up signal is also used to save energy when the terminal is in the RRC_CONNECTED state.
- An exemplary terminal power saving mechanism is DRX.
- DRX When DRX is configured, the terminal monitors the PDCCH during the DRX On Duration. If data scheduling is received during the On Duration period, the terminal continues to monitor the PDCCH based on the control of the DRX timer until the data transmission is completed. Otherwise, if the terminal does not receive data scheduling during DRX On Duration, the terminal enters OffDuration to save energy.
- DRX is an energy-saving control mechanism with the DRX cycle as the time granularity, so it cannot achieve optimal power consumption control. For example, even if the terminal does not have data scheduling, the terminal must monitor the PDCCH during the period when the DRX On Duration timer is periodically started, so there is still a power waste.
- the NR energy saving enhancement introduces the energy saving wake-up signal.
- Standardized energy-saving wake-up signals are used in conjunction with the DRX mechanism.
- the specific technical principle is that the terminal receives the indication of the energy-saving wake-up signal before the DRX On Duration.
- the energy-saving wake-up signal "wakes up" the terminal to monitor the PDCCH during the DRX On Duration.
- the energy-saving wake-up signal does not "wake up" the terminal, and the terminal does not need to monitor the PDCCH during the DRX On Duration.
- the terminal can omit PDCCH monitoring during the DRX On Duration period, thereby achieving energy saving.
- the time before the DRX On Duration of the terminal is called the inactive time.
- the time that the terminal is in DRX OnDuration is called the activation time.
- the energy saving signal based on PDCCH is introduced as follows:
- the PDCCH is used as an energy-saving signal:
- PDCCH Physical Downlink Control Channel
- the design of PDCCH can be directly multiplexed, including coding, scrambling, resource mapping, search space, CORESET, etc., so the workload of standardization is small.
- the PDCCH has good compatibility with other signals transmission and multiplexing characteristics. Since the related system already supports the PDCCH channel, the PDCCH has good compatibility and multiplexing characteristics with other channels such as PDSCH.
- FIG. 6 is a schematic flowchart of a sidelink transmission method 200 according to an embodiment of the present application.
- the method can optionally be applied to any of the systems shown in Figures 1 to 3c, but is not limited thereto.
- the method includes at least some of the following.
- the terminal receives sideline indication information.
- the terminal enters an awake state or a sleep state according to the sideline indication information.
- terminal A may receive sideline indication information from terminal B, where the sideline indication information may instruct terminal A to enter an awake state or a sleep state. If the terminal A is in the awake state, and the sideline indication information indicates the awake state (or indicates entering the awake state), the terminal A can maintain the awake state. If the terminal A is in the awake state, and the sideline indication information indicates the dormant state (or indicates entering the dormant state), the terminal A may transition to the dormant state. If the terminal A is in the dormant state, and the sideline indication information indicates the wake-up state (or indicates entering the wake-up state), the terminal A may transition to the wake-up state. If the terminal A is in the dormant state, and the sideline indication information indicates the dormant state (or indicates entering the dormant state), the terminal A may maintain the dormant state.
- the awake state indicates that the terminal needs to perform sidelink data reception or measurement; the sleep state indicates that the terminal does not need to perform sidelink data reception or measurement.
- the wake-up state is that the terminal is in the DRX On Duration state or enters the DRX On Duration state, and the terminal receives or measures sideline data during the On Duration period;
- the dormant state is that the terminal is in the DRX Off Duration state or does not enter the DRX On Duration state. In this state, the terminal does not receive or measure sideline data during this period.
- the sideline indication information is a wake-up signal
- the wake-up signal is used to instruct the terminal to enter a wake-up state.
- the sideline indication information is a sleep signal
- the sleep signal is used to instruct the terminal to enter a sleep state.
- the terminal entering the awake state or the dormant state according to the sideline indication information includes: determining, by the terminal, the time to enter the awake state or the dormancy state based on the moment of receiving the sideline indication information.
- T is the moment when the terminal receives the indication information, and the terminal can enter the wake-up state or the sleep state in the first time slot after time T.
- T is the time when the terminal receives the indication information
- Tproc is the processing time of the terminal, and the terminal can enter the wake-up state or the sleep state in the first time slot after the time T+Tproc.
- the moment when the terminal receives the sideline indication information is the moment corresponding to the first time-domain symbol or the last time-domain symbol that carries the sideline indication information.
- the time when the terminal receives the sideline indication information is the time corresponding to the start position of the first time domain symbol that carries the sideline indication information; or, the time when the terminal receives the sideline indication information is the time when the The moment corresponding to the end position of the last time domain symbol of the side row indication information.
- the method further includes: determining the first duration.
- the terminal determines the moment of entering the wake-up state or the dormant state based on the moment of receiving the sideline indication information, including: the terminal receives the sideline indication information in the first time slot of the first duration after the first time slot. Enter the awake or hibernate state.
- the method further includes: determining the first duration based on the processing time of the terminal.
- the first duration is the duration corresponding to the terminal processing time plus the duration of the sequence or channel occupied by the sequence carrying the indication information.
- the first duration may be the duration corresponding to the terminal processing time.
- the processing time of the terminal is determined based on the time at which the terminal performs sequence detection or lateral channel detection.
- the time for detecting the side channel includes at least one of the following: time for detecting PSCCH, time for detecting second-order SCI, time for detecting PSSCH, total time for detecting PSCCH and PSSCH, total time for detecting PSCCH and second-order SCI , the total time to detect PSCCH, second-order SCI and PSSCH.
- the method further includes: acquiring, by the terminal, first indication information, and determining a time interval, a number of time slots or a time slot offset according to the first indication information.
- the method further includes: the terminal acquires the first indication information according to pre-configuration information, network configuration information or sideline data sent by other terminals.
- the preconfigured information or network configuration information may be preconfigured resource pool information or network configured resource pool information.
- Sidelink data sent by other terminals may be Sidelink Control Information (SCI), PC5-RRC signaling, and Media Access Control (MAC) control elements (Control Element) sent by other terminals.
- SCI Sidelink Control Information
- PC5-RRC signaling PC5-RRC signaling
- MAC Media Access Control
- Control Element Control elements sent by other terminals.
- CE Media Access Control
- CE MAC protocol data unit
- PDU Protocol Data Unit
- the terminal determines the moment of entering the wake-up state or the dormant state based on the moment of receiving the sideline indication information, including: the terminal according to the time slot where the sideline indication information is located, the time interval, and the number of time slots.
- the slot offset determines the slot to enter the awake state or sleep state.
- the time interval is 2 time slots, and the time interval represents the time slot in which the terminal receives the sideline indication information and the time slot in which the terminal switches to the wake-up state or the sleep state.
- the time slot offset is 2 time slots
- the time slot offset indicates that the terminal receives the time slot of the sideline indication information and transitions to the wake-up state. or the time interval between time slots in the sleep state. For example, if the terminal is in an awake state, and receives the sideline indication information in time slot 3 to indicate that it enters a dormant state, the terminal enters a dormant state in time slot 5.
- terminal A receives the SCI sent by terminal B, and the SCI includes indication information indicating that the time interval is 2 time slots, and the time interval indicates that the time slot when the terminal receives the sideline indication information and transitions to the wake-up state or dormancy.
- the time interval between slots for the state For example, terminal A is in an awake state, and in time slot 3 it receives the sideline indication information sent by terminal B to indicate that it enters a sleep state, then terminal A enters a sleep state in time slot 5.
- the sideline indication information is carried by a sequence.
- the method further includes: when the sequence is the first sequence, the terminal enters an awake state; and/or, when the sequence is the second sequence, the terminal enters a sleep state.
- the transmission period of the sequence carrying the sideline indication information includes a plurality of time slots, and sequence detection can be performed at the terminal of each time slot. For example, if the first sequence is detected in time slot 0, the terminal enters the wake-up state; when the second sequence is detected in time slot 2, the terminal enters the sleep state.
- the method further includes: when the sequence is the first sequence, the terminal determines the second duration of entering the wake-up state; and/or, when the sequence is the second sequence, the terminal determines the first time to enter the dormant state Three hours. Specifically, when the terminal detects the first sequence, it determines to enter the wake-up state, and the wake-up state lasts for a time corresponding to the second duration; when the terminal detects the second sequence, it determines to enter the sleep state, and continues in the sleep state for a third duration corresponding to time.
- the second duration and the third duration are configurable, or specified by agreement.
- the parameter can be pre-configured, network-configured, or terminal-configured.
- the second duration and the third duration may be configured by the terminal sending the sideline indication information sequence.
- the second duration and the third duration can be configured independently.
- the first sequence corresponds to a first cyclic shift value
- the second sequence corresponds to a second cyclic shift value.
- the first sequence is generated according to the first cyclic shift value
- the second sequence is generated according to the second cyclic shift value.
- the first cyclic shift value has a first correspondence with the wake-up state; and/or the second cyclic shift value has a second correspondence with the sleep state.
- the first correspondence is pre-configured, network-configured or terminal-configured; and/or the second correspondence is pre-configured, network-configured or terminal-configured.
- the terminal may acquire the first cyclic shift value used to generate the first sequence, and then acquire the wake-up state corresponding to the first cyclic shift value according to the first correspondence. In this case, the terminal can remain or enter the awake state.
- the terminal detects the second sequence, it can obtain the second cyclic shift value used to generate the second sequence, and then obtain the sleep state corresponding to the second cyclic shift value according to the second correspondence. In this case, the terminal can remain or enter the sleep state.
- the method further includes:
- the terminal acquires resource pool configuration information, and determines the first correspondence according to the resource pool configuration information; and/or,
- the terminal acquires resource pool configuration information, and determines the second correspondence according to the resource pool configuration information.
- the method further includes:
- the terminal When the first correspondence is terminal configuration, the terminal obtains SCI, PC5-RRC signaling, MAC CE or MAC PDU, and determines the first correspondence according to the SCI, PC5-RRC signaling, MAC CE or MAC PDU; and / or,
- the terminal When the second correspondence is terminal configuration, the terminal obtains SCI, PC5-RRC signaling, MAC CE or MAC PDU, and determines the second correspondence according to the SCI, PC5-RRC signaling, MAC CE or MAC PDU.
- the first cyclic shift value has a third correspondence with the second duration of the wake-up state; and/or the second cyclic shift value has a fourth correspondence with the third duration of the sleep state.
- the third correspondence is pre-configured, network-configured or terminal-configured; and/or the fourth correspondence is pre-configured, network-configured or terminal-configured.
- the terminal if the terminal detects the first sequence, it can obtain the first cyclic shift value used to generate the first sequence, and then obtain the wake-up state corresponding to the first cyclic shift value according to the first correspondence, and according to the third correspondence The second duration for which the relationship acquires the awake state. In this case, the terminal may remain or enter the wake-up state for the second time period. If the terminal detects the second sequence, it can obtain the second cyclic shift value used to generate the second sequence, and then obtain the sleep state corresponding to the second cyclic shift value according to the second correspondence, and obtain the sleep state according to the fourth correspondence of the third period. In this case, the terminal may maintain or enter the sleep state for the third time period.
- the method further includes:
- the terminal When the third corresponding relationship is pre-configuration or network configuration, the terminal obtains resource pool configuration information, and determines the third corresponding relationship according to the resource pool configuration information; and/or,
- the terminal acquires resource pool configuration information, and determines the fourth corresponding relationship according to the resource pool configuration information.
- the method further includes:
- the terminal obtains SCI, PC5-RRC signaling, MAC CE or MAC PDU, and determines the third correspondence according to the SCI, PC5-RRC signaling, MAC CE or MAC PDU; and / or,
- the terminal obtains SCI, PC5-RRC signaling, MAC CE or MAC PDU, and determines the fourth correspondence according to the SCI, PC5-RRC signaling, MAC CE or MAC PDU.
- the second duration is pre-configured, network-configured or terminal-configured; and/or the third duration is pre-configured, network-configured or terminal-configured.
- the method further includes:
- the terminal acquires resource pool configuration information, and determines the second duration according to the resource pool configuration information; and/or,
- the terminal acquires resource pool configuration information, and determines the third duration according to the resource pool configuration information.
- the method further includes:
- the terminal acquires SCI, PC5-RRC signaling, MAC CE or MAC PDU, and determines the second duration according to the SCI, PC5-RRC signaling, MAC CE or MAC PDU; and/ or,
- the terminal When the third duration is configured by the terminal, the terminal obtains the SCI, PC5-RRC signaling, MAC CE or MAC PDU, and determines the third duration according to the SCI, PC5-RRC signaling, MAC CE or MAC PDU.
- the terminal does not perform sequence detection in the sleep state.
- the terminal if the terminal is configured not to perform sequence detection in the dormant state, the terminal enters the wake-up state when the first sequence is detected in time slot 0 for 4 time slots, and automatically switches to the dormant state in time slot 5.
- the second sequence is detected in time slot 6, indicating that it enters the dormant state, and the duration is 6 time slots, then the dormancy state is in time slot 7 to time slot 12, and the sequence will not be performed in time slot 8 and time slot 12. detection.
- the terminal does not detect SCI in the sleep state.
- the terminal does not detect sequences or sideline data such as SCI in the sleep state.
- the terminal does not detect the SCI in the dormant state.
- the sequence corresponding to the sideline indication information is independently transmitted independently of other sideline physical channels.
- the sequence corresponding to the side row indication information occupies 2 symbols in the time domain, and is located in the penultimate and third penultimate side row symbols in a time slot.
- a time slot includes 14 orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols
- the sequence may be located in the 12th and 13th side row symbols.
- the sequence corresponding to the side row indication information is the same as the sequence sent on the two symbols occupied in the time domain.
- a symbol before the first symbol of the sequence corresponding to the side line indication information is a guard interval (Guard period, GP) symbol, and/or, after the last symbol of the sequence corresponding to the side line indication information is carried.
- a symbol is a GP symbol.
- the candidate transmission resources of the sequence are periodic.
- the time slot used to transmit the PSFCH is simultaneously used to transmit the sequence, or, use The time slot in which the sequence is transmitted is simultaneously used for transmitting the PSFCH. Further, the sequence and the PSFCH occupy the same time domain symbols.
- PSFCH Physical Sidelink Feedback Channel
- the sequence occupies M physical resource blocks (Physical Resource Blocks, PRBs) in the frequency domain, where M is an integer greater than or equal to 1.
- PRBs Physical Resource Blocks
- the M PRBs are continuous PRBs, and the M PRBs are obtained by performing a modulo operation on M based on the indexes of the PRBs at the starting positions of the M PRBs in the frequency domain.
- the sequence is generated based on the root sequence, the cyclic shift value and the sequence length.
- different sequences can be obtained.
- the above-mentioned first sequence and second sequence may be obtained based on the same root sequence and different cyclic shift values.
- different sequences can also be obtained based on different root sequences.
- the above-mentioned first sequence and second sequence may be generated based on different root sequences.
- sequence is determined according to at least one of the following: source identification (Identity, ID), target ID, group ID.
- the target ID is the intra-group ID of the terminal in the communication group.
- a communication group includes 4 terminals, UE1, UE2, UE3 and UE4, and their corresponding intra-group IDs are ID#0, ID#1, ID#2 and ID#3 respectively.
- Different intra-group terminals may determine corresponding sequences according to their corresponding intra-group IDs. For example, for the case of 12 cyclic shift values, the first 6 are used to indicate the awake state, and the last 6 are used to indicate the sleep state. When the sequence is used to indicate an awake state, one of the first 6 cyclic shift values is determined based on the source ID, target ID and/or group ID. When the sequence is used to indicate the sleep state, one of the last 6 cyclic shift values is determined according to the source ID, the target ID or the group ID.
- the transmission resource of the sequence is determined according to at least one of the following: source ID, target ID, group ID.
- the target ID is the intra-group ID of the terminal in the communication group.
- the candidate transmission resources of the sequence are N (including frequency domain resources and code domain resources), and one of the N transmission resources is determined for transmitting the sequence according to the source ID, target ID and/or group ID.
- the source ID includes the ID of the terminal sending the sequence.
- the target ID includes at least one of the following:
- the source ID is the source ID carried in the SCI
- the target ID is the target ID carried in the SCI.
- the group ID includes a group ID in multicast communication.
- the method further includes:
- the configuration information is used to configure the transmission resource set of the sequence
- the transmission resources of the sequence are determined according to the configuration information.
- the configuration information is used to configure the candidate transmission resource set or the available transmission resource set of the sequence.
- the terminal can determine specific transmission resources according to other information, such as source ID, target ID or group ID.
- the configuration information is resource pool configuration information or bandwidth part (BWP) configuration information.
- BWP bandwidth part
- configuration information for configuring the transmission resource bearing the sequence may be determined.
- the transmission resources carrying the sequence can be configured.
- the configuration information is pre-configured or network-configured.
- the configuration information includes at least one of the following parameters:
- the second indication information is used to indicate whether it is supported to instruct the terminal to enter the wake-up state or the sleep state through the sideline indication information;
- the third indication information is used to indicate whether the sideline indication information needs to be detected in the dormant state
- Time domain resource indication information used to indicate the time domain resource of the sequence carrying the sideline indication information
- frequency domain resource indication information used to indicate the frequency domain resource of the sequence carrying the sideline indication information
- code domain resource indication information used to indicate the code domain resource of the sequence bearing the sideline indication information
- the second indication information may be used to indicate whether to support instructing the terminal to enter an awake state or a sleep state through the sideline indication information. If supported, it is then judged that the sideline indication information indicates that the terminal enters the wake-up state or indicates that the terminal enters the sleep state. If it is not supported, no subsequent judgment can be made.
- the third indication information may be used to indicate whether the terminal needs to detect the sideline indication information in the sleep state. If so, the terminal also detects the sideline indication information in the sleep state. Otherwise, the terminal does not detect the sideline indication information in the sleep state. If the sideline indication information is carried by the sequence, the third indication information indicates whether the terminal needs to perform sequence detection in the dormant state; if the sideline indication information is carried by the SCI, the third indication information indicates that the terminal is in the dormant state. Whether SCI testing is required.
- the time domain resource indication information includes at least one of the following:
- Period information used to indicate the time domain period for transmitting the sideline indication information
- the time slot offset is used to determine the time slot in which the sideline indication information is transmitted in one cycle.
- the time domain period is zero, indicating that the function of instructing the terminal to enter the wake-up state or the sleep state through the sideline indication information is not supported.
- the frequency domain resource indication information includes at least one of the following:
- the frequency domain resource set indication information is used to indicate a frequency domain resource set that can be used to carry the sequence of the sideline indication information.
- a set of frequency domain resources that can be used to carry the sequence of the sideline indication information is indicated by a bitmap or by means of indicating the starting position and length of the frequency domain.
- the code domain resource indication information includes at least one of the following:
- the root sequence indication information is used to determine the parameters for generating the root sequence
- cyclic shift indication information used to determine the cyclic shift value
- the wake-up duration indication information includes at least one of the following:
- the second duration is used to determine the duration of entering the wake-up state
- the sleep duration indication information includes at least one of the following:
- the third duration is used to determine the duration of entering the sleep state
- the sidelink indication information is carried by the sidelink control information SCI.
- the SCI is a first-order SCI or a second-order SCI.
- the sideline indication information is carried through the information field in the SCI.
- the manner in which the sideline indication information is carried by the information field in the SCI includes at least one of the following:
- the information field is the first value and is used to indicate that the terminal enters the wake-up state
- the second value in the information field is used to indicate that the terminal enters the sleep state.
- the information field occupies 1 bit, and this bit is 1 to indicate that the terminal enters an awake state, and 0 to indicate that the terminal enters a sleep state.
- the manner in which the sideline indication information is carried by the information field in the SCI includes at least one of the following:
- the first information field in the SCI is used to indicate the wake-up state or the sleep state
- the second information field in the SCI is used to indicate the second duration of the awake state or the third duration of the sleep state.
- the SCI includes a first information field, for example, the first information field occupies 1 bit and is used to indicate an awake state or a sleep state.
- the SCI includes a first information field and a second information field.
- the second information field indicates the wake-up duration; in the case that the first information field indicates the sleep state, the second The information field indicates the sleep duration.
- the second information field may represent different durations by multiple bits.
- the second information field includes 2 bits, a bit index value of 0 indicates 2 time slots, a bit index value of 1 indicates 4 time slots, a bit index value of 2 indicates 8 time slots, and a bit index value of 3 indicates 16 time slots.
- the corresponding relationship between the value of the second information field and the second duration or the third duration is pre-configured, network-configured or terminal-configured.
- the sideline indication information is carried in an SCI format.
- the first SCI format corresponds to an awake state
- the second SCI format corresponds to a sleep state.
- the terminal if it is detected that the sideline indication information is in the first SCI format, the terminal enters an awake state. If it is detected that the sideline indication information is in the second SCI format, the terminal enters a sleep state.
- the sideline indication information is carried by the scrambling code sequence of the SCI.
- the scrambling code sequence is used to scramble a first bit sequence, where the first bit sequence is a sequence generated by adding a CRC sequence according to the information bits of the SCI.
- the information bits of the SCI are subjected to an additional CRC sequence to generate the first bit sequence.
- the bits corresponding to the CRC sequence in the first bit sequence can be scrambled by using the scrambling sequence.
- the scrambling code sequence is used to scramble a second bit sequence, where the second bit sequence is a bit sequence obtained by channel coding the information bits of the SCI.
- the information bits of the SCI are subjected to channel coding processing to generate the second bit sequence.
- the second bit sequence can be scrambled using the scrambling sequence.
- the scrambling sequence is used to indicate the second duration of the awake state and/or the third duration of the sleep state.
- the indication manner of the scrambling sequence includes at least one of the following:
- the scrambling code sequence is used to indicate entering the wake-up state
- the scrambling code sequence is used to indicate entering a sleep state
- the scrambling code sequence is used to indicate the second duration of entering the wake-up state
- the scrambling code sequence is used to indicate a third duration of entering the sleep state.
- the initial value of the scrambling sequence generator is determined by the first parameter.
- the corresponding relationship between the initial value of the scrambling code sequence generator and the terminal state, and the corresponding relationship with the duration of the terminal entering each state may be preset or configured.
- the initial value of the scrambling sequence generator is used to generate the scrambling sequence.
- the first initial value corresponds to the wake-up state
- the second initial value corresponds to the sleep state
- the third initial value corresponds to the second duration of the wake-up state, or the wake-up duration
- the fourth initial value corresponds to the third duration of the sleep state, or is the sleep time.
- the terminal After receiving the scrambling code sequence, the terminal parses the scrambling code sequence, and determines the operation of the terminal according to the initial value for generating the scrambling code sequence. For example, if the scrambling sequence is generated by the first initial value, the terminal enters an awake state. For another example, if the scrambling code sequence is generated by the second initial value, the terminal enters a sleep state. For another example, if the scrambling code sequence is generated by the third initial value, the terminal enters the wake-up state and remains for the second duration. For another example, if the scrambling code sequence is generated by the fourth initial value, the terminal enters the sleep state and remains in the third time period.
- the receiving of the sideline indication information by the terminal includes: the terminal receiving the sideline indication information within the first time range.
- the method further includes:
- the terminal determines the start position of the first time range and/or the end position of the first time range according to the first time domain position.
- the method further includes:
- the terminal obtains the configuration information of the sideline DRX;
- the terminal determines the first time domain position according to the configuration information of the sideline DRX.
- the configuration information of the sideline DRX includes a DRX duration timer (DRX_onDurationTimer), and the first time domain position is determined according to the start, reset or effective time of the DRX duration timer.
- DRX_onDurationTimer DRX duration timer
- the first time domain position may be the time domain position at which the DRX persistence timer is started or reset.
- the terminal determines the starting position of the first time range according to the first time domain position, including:
- the terminal determines the starting position of the first time range according to the first time domain position and the first time interval; or,
- the terminal determines the first time domain position as the start position of the first time range.
- the terminal may determine the time domain position corresponding to the start of the DRX persistence timer as the start position of the first time range for receiving the sideline indication information, or may start the DRX persistence timer according to the first time interval. Before or after the corresponding time domain position, the starting position of the first time range is determined.
- the first time interval is determined according to pre-configured information, or determined according to network configuration information, or determined according to indication information of other terminals, or determined by the terminal.
- the method further includes:
- the terminal determines the end position of the first time range according to the start position of the first time range and the fourth duration.
- the fourth duration is the time domain length of the first time range.
- the fourth duration is determined according to pre-configuration information, or determined according to network configuration information, or determined according to indication information of other terminals, or determined by the terminal. That is to say, the time domain length of the first time range may be pre-configured or configured by the network, or may be indicated by other terminals or determined by the terminal itself.
- the terminal determines the end position of the first time range according to the first time domain position, including:
- the terminal determines the previous time slot of the time slot corresponding to the first time domain position as the end position of the first time range.
- the terminal may determine the previous time slot of the time domain position corresponding to the start of the DRX persistence timer as the end position of the first time range.
- the method further includes:
- the terminal determines the start position of the first time range according to the end position of the first time range and the fifth duration.
- the fifth duration is the time domain length of the first time range.
- the fifth duration is determined according to pre-configured information, or determined according to network configuration information, or determined according to indication information of other terminals, or determined by the terminal. That is to say, the time domain length of the first time range may be preconfigured or configured by the network, or may be indicated by other terminals or determined by the terminal itself.
- the sideline indication information instructs the terminal to enter the wake-up state or the sleep state, so that the terminal can enter the sleep state when no data is received, thereby reducing the power consumption of the terminal and realizing energy saving.
- Example 1 The terminal receives indication information such as sideline indication information, and enters a wake-up or go-to-sleep state according to the sideline indication information.
- indication information such as sideline indication information
- the awake state may indicate that the terminal needs to perform sidelink data reception or measurement; the sleep state may indicate that the terminal does not need to perform sidelink data reception or measurement.
- the awake state is the DRX On Duration state, and the terminal receives or measures sideline data during the On Duration period;
- the dormant state is the DRX Off Duration state, and the terminal does not receive or measure the sideline data during this period.
- the awake state means that the terminal enters the DRX On Duration state, and the terminal receives or measures sideline data during the On Duration period;
- the dormant state means that the terminal does not enter the DRX On Duration state.
- the terminal does not detect the sideline indication information, the current state is maintained. For example, if the terminal detects the sideline indication information, it enters the DRX On Duration state, otherwise it does not enter the DRX On Duration state.
- the sideline indication information is called a wake-up signal (or sleep signal), and the sideline indication information is used to instruct the terminal to wake up or sleep.
- the terminal receives the sideline indication information, and enters the wake-up or sleep state after the time T+Tproc, where T is the moment when the terminal receives the sideline indication information, for example, it is the first one that bears the sideline indication information.
- Tproc is the terminal processing time, for example, the time when the terminal performs sequence detection.
- Example 1-1 The sideline indication information is carried by a sequence.
- the sideline indication information is the first sequence, the terminal enters the awake state; when the sideline indication information is the second sequence, the terminal enters the sleep state.
- the transmission period of the sequence carrying the side row indication information is configured to be 4 time slots, that is, the terminal will perform sequence detection every 4 time slots.
- a wake-up or sleep state is determined based on the detected sequence. Since there are only two states, two sequences can be pre-configured to correspond to the two states respectively. When the first sequence is detected, the wake-up state is entered; when the second state is detected, the sleep state is entered.
- the transmission period of the sequence carrying the side row indication information is 4 time slots, that is, the terminal will perform sequence detection every 4 time slots.
- the terminal enters the wake-up state, which lasts for 6 time slots, that is, receives sideline data or performs measurements in time slot 1 to time slot 6.
- the current state ie the wake-up state
- the wake-up period ends, and it automatically switches to the sleep state.
- the wake-up state is detected in time slot 8 and lasts for 2 time slots, that is, the wake-up state is entered in time slots 9 and 10 .
- the time slot 10 After the time slot 10, it automatically switches to the dormant state, and when the second sequence is detected in the time slot 12, it is indicated to enter the dormant state, and then the dormant state continues to be maintained.
- the duration T1 for entering the wake-up state and the duration T2 for entering the dormant state are configurable or specified by the protocol.
- the parameter may be pre-configured, network-configured or terminal-configured (e.g. configured by the terminal sending the sideline indication sequence).
- T1 and T2 can be independently configured.
- the duration T1 of entering the wake-up state and the duration T2 of entering the dormant state are also determined by the sequence.
- multiple sequences can be generated by different cyclic shifts.
- 12 different sequences can be generated based on the cyclic shift;
- a 24-point long sequence a 24-point long sequence can be generated based on the cyclic shift.
- the value range of the cyclic shift is [0,11], when the value is [0,5], it means entering the wake-up state; when the value is [6,11], it means entering the sleep state.
- different values correspond to different durations T1 and T2.
- the corresponding relationship between the value of the cyclic shift and the duration can be pre-configured, network-configured or terminal-configured, as shown in Table 1 below:
- Table 1 Example of correspondence between cyclic shift values, wake/sleep states, duration
- the terminal for sequence detection uses sequences corresponding to different cyclic shift values to perform detection, so as to determine whether to enter the wake-up state or the sleep state, and the duration of the wake-up state or the sleep state.
- the above table only schematically illustrates the corresponding relationship between the cyclic shift value and the duration, and does not constitute a specific limitation. Different correspondences can also be configured. For example, for a 12-point sequence, only the sequence corresponding to 4 cyclic shift values is configured, that is, the cyclic shift value is 0/3/6/9, where the sequence corresponding to 0/3 indicates Enter the wake-up state, the sequence corresponding to 6/9 indicates entering the sleep state, and the corresponding duration is shown in Table 2 below.
- Table 2 Example of correspondence between cyclic shift values, wake/sleep states, duration:
- the terminal does not detect the physical sidelink control channel (Physical Sidelink Control CHannel, PSCCH)/physical sidelink shared channel (Physical Sidelink Shared CHannel, PSSCH) in the sleep state.
- the terminal will still detect the sequence carrying the sideline indication information to determine whether a state change needs to be performed.
- the terminal does not perform sequence detection in the sleep state.
- the transmission cycle of the sequence carrying the sideline indication information is 4 time slots, that is, the terminal will perform sequence detection every 4 time slots.
- the terminal When the first sequence is detected in time slot 0, the terminal enters the wake-up state , the duration is 2 time slots, that is, the side line data is received or measured from time slot 1 to time slot 2, and it automatically switches to sleep state in time slot 3.
- the second sequence is detected in time slot 4, indicating that it enters the dormant state, and the duration is 6 time slots, then the dormancy state is in time slot 5 to time slot 10, and the sequence detection will not be performed in time slot 8. After slot 10, the sequence detection will be restarted.
- the first sequence When the first sequence is detected in slot 12, it indicates that it enters the wake-up state, which lasts for 2 time slots. Then it enters the wake-up state in time slot 13 and time slot 14, and in time slot 15. Automatically enter sleep mode.
- Example 1-2 The sideline indication information is carried by the SCI.
- the SCI is a first-order or second-order SCI.
- Example 1-2-1 Bearing through the information field in the SCI: when the information field is the first value, enter the wake-up state; when the information field is the second value, enter the sleep state.
- the SCI is also used to indicate the wake-up duration T1 and the sleep duration T2.
- An information field is included in the SCI, and the information field is used to indicate an index value, and the wake-up duration T1 or the sleep duration T2 is determined according to the index value and the first corresponding relationship.
- a 1-bit first information field is used to indicate whether to wake up or sleep
- a 3-bit second information field is also used to indicate a wake-up duration T1 or a sleep duration T2.
- the second information field is used to indicate the wake-up duration.
- the second information field indicates the dormancy duration.
- the corresponding relationship between the value of the 3 bits and the duration may be pre-configured, network-configured, or terminal-configured. For an example, see Table 3.
- Example 1-2-2 The scrambling sequence carried by the SCI:
- Mode 1 The information bits a 0 , a 1 , a 2 , a 3 , ..., a A-1 of the SCI are subjected to an additional CRC sequence p 0 , p 1 , p 2 , p 3 , ..., p L-
- the sequence after 1 is b 0 ,b 1 ,b 2 ,b 3 ,...,b K-1 , where,
- K A+L
- A represents the length of the SCI information bits
- the side row indication information carried by the sequence can be referred to the exemplary correspondence in Table 4:
- x 0 ,x 1 ,...,x 23 state 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 hibernate 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 wake
- the above-mentioned scrambling sequence can also be used to carry the wake-up duration T1 or sleep duration T2, as shown in Table 5 below:
- Mode 2 The bit sequence d(0),...,d(M bit -1) of the SCI after channel coding needs to be processed by scrambling code, and the scrambling code sequence c(0),...,c(M bit -1) .
- the initial value c init of the scrambling code sequence generator is determined by the first initial value or the second initial value.
- the scrambling code sequence is determined by the first initial value (eg 1), it means entering the wake-up state.
- the scrambling code sequence is determined by the second initial value (eg, 0), it indicates that the sleep state is performed.
- the duration T1 of entering the wake-up state or the duration T2 of entering the dormant state may be determined according to the scrambling code sequence.
- the scrambling code sequence is determined by the third initial value, it indicates the duration T1 for entering the wake-up state.
- the scrambling code sequence is determined by the fourth initial value, it indicates the duration T2 for the sleep state.
- the initial value c init of the scrambling sequence generator is determined by a set of values, and the set includes K elements. When c init is determined by the values corresponding to the element indices 1, 2, . When c init is determined by the values corresponding to the element indices K/2+1, K/2+2, .
- Example 1-2-3 Bearing through the format of SCI
- NR-V2X defines a variety of SCI formats. For example, two second-order SCIs are defined, namely SCI format 2A and SCI format 2B, which can carry sideline indication information through different SCI formats.
- SCI format 2A When SCI format 2A is used, the indication Enter the awake state.
- SCI format 2B When using SCI format 2B, it indicates to enter the sleep state.
- Example 2 Structure of a sequence carrying side row indication information
- the sequence may be transmitted independently of other sideline physical channels, and the sequence occupies 2 symbols in the time domain. As shown in Figure 10, the 2 symbols can be located in the penultimate and penultimate side row symbols in a time slot, and the previous symbol (that is, the penultimate fourth side row symbol) carrying the sequence is GP, using Transmit and receive conversions to and from the PSSCH channel in this time slot.
- sequence sent over 2 symbols is the same, where the first symbol is used as AGC.
- the candidate transmission resource of the sideline indication information is periodic, and if the period is P, it means that every P time slots include a time slot that can be used to transmit the sideline indication information.
- the time slot for sending the sequence can also be used to transmit the PSFCH, or the time slot for sending the PSFCH can also be used to send the sequence; that is, the PSFCH and the sequence are located in the same time slot, and further, in the same time domain symbol.
- the sequence corresponding to the side row indication information occupies M PRBs in the frequency domain, and optionally, the M PRBs are consecutive PRBs.
- the sequence carrying the sideline indication information can be expressed as:
- the root sequence may be determined according to pre-configured, network-configured parameters.
- the cyclic shift value is used to determine whether to enter the wake or sleep state. Further, the cyclic shift value is used to determine the wake-up duration T1 or the sleep duration T2.
- the root sequence is used to determine entering an awake or sleep state.
- sequence of bearing side row indication information is determined according to at least one of the following: source ID, target ID, group ID.
- the target ID is the intra-group ID of the terminal in the communication group.
- the intra-group ID of the terminal can be obtained according to the high-level configuration information.
- the source ID is, for example, the ID of the terminal that transmits the sequence during unicast communication.
- both UEs performing unicast communication can know the ID information of the opposite terminal, so the terminal receiving the sequence can determine the source ID according to the ID of the opposite terminal, and detect the corresponding sequence according to the ID information;
- the target ID is, for example, an ID corresponding to a terminal that receives the sequence in unicast communication.
- the receiving terminal determines the target ID according to its own ID information, and detects the corresponding sequence according to the ID information.
- the target ID information is the group ID in multicast communication, and all terminals performing multicast communication can know the group ID, so the target ID can be determined according to the group ID information, and the corresponding sequence can be detected according to the ID information.
- the target ID information is the ID corresponding to the service type in the broadcast communication.
- the terminal performing broadcast communication determines the target ID according to the service type of interest or the service type to be received, and detects the corresponding sequence according to the ID information.
- the source ID and target ID are the source ID and target ID carried in the SCI.
- the source ID and target ID are carried in the second-level SCI, and the source ID or target ID is determined according to the high-level ID information.
- the upper layer ID corresponds to 24 bits
- the source ID is 8 bits truncated from the upper layer source ID
- the target ID is 16 bits truncated from the higher layer target ID.
- Example 3 Configuring transmission resources for sequences carrying sideline indication information
- the transmission resource carrying the sequence of sideline indication information may be determined according to the resource pool configuration information, or according to the sideline BWP configuration information, that is, the transmission resource is configured for each resource pool or each sideline BWP.
- the transmission resources may be pre-configured or network-configured.
- the parameters used to determine the transmission resource of the sequence carrying the sideline indication information include at least one of the following:
- the second indication information used to indicate whether the function is supported, that is, whether to indicate whether the terminal is supported to enter the wake-up or sleep state through the sideline indication information.
- the third indication information a sequence indicating whether the bearer sideline indication information needs to be detected in the sleep state, and the sideline indication information is used to instruct the terminal to enter an awake state or a sleep state.
- Time domain resource indication information including at least one of the following information:
- Time slot offset used to determine the time slot in which the sideline indication information is transmitted in one cycle.
- Frequency domain resource indication information including at least one of the following information:
- Available frequency domain resources indicate a set of frequency domain resources that can be used to transmit the sequence of the sideline indication information; specifically, it is indicated by a bitmap, or by indicating the starting position and length of the frequency domain.
- Code field resource indication information including at least one of the following information:
- Root sequence indication information used to determine the parameters for generating the root sequence
- Cyclic shift indication information used to determine a cyclic shift value
- Wake-up duration T1 used to determine the duration of entering the wake-up state.
- Sleep duration T2 used to determine the duration of entering the sleep state.
- Example 4 The first time range for receiving sideline indication information
- the first time range is a time range for receiving the sideline indication information.
- the first time range may be determined by the terminal according to configuration information or predetermined time domain location, duration and other information.
- the terminal may determine the start position of the first time range and/or the end position of the first time range according to the first time domain position.
- the first time domain position may be determined according to the configuration information of the sideline DRX.
- the configuration information of the sideline DRX may be pre-configured or network-configured.
- the configuration information of the sideline DRX includes a DRX duration timer (DRX_onDurationTimer), and the first time domain position is determined according to the start, reset or effective time of the DRX duration timer.
- the first time domain position may include a time domain position corresponding to the start, reset or validation of the DRX persistence timer, and the first time domain position may also be based on a time domain position corresponding to the start, reset or validation of the DRX persistence timer and predetermined time intervals.
- determining the first time range by using the first time domain position will be described below by taking the first time domain position including the time domain position corresponding to the start and restart of the DRX persistence timer as an example.
- the terminal determines the starting position of the first time range according to the first time domain position, including:
- the terminal determines the starting position of the first time range according to the first time domain position and the first time interval; or,
- the terminal determines the first time domain position as the start position of the first time range.
- the terminal may determine the start position of the first time range according to the first time interval before the time domain position corresponding to the start and restart of the DRX persistence timer. It can be understood that, in practical applications, the terminal may also determine the start position of the first time range after the time domain position corresponding to the start and restart of the DRX persistence timer according to the first time interval.
- the terminal may determine the time domain position corresponding to the start and restart of the DRX persistence timer as the start position of the first time range for receiving the sideline indication information.
- the first time interval may be determined according to pre-configured information, or determined according to network configuration information, or determined according to indication information of other terminals, or determined by the terminal.
- the terminal may also determine the end position of the first time range according to the first time domain position.
- the time domain position and the second time interval determine the end position of the first time range.
- the terminal may determine the end position of the first time range according to the start position of the first time range and the fourth duration.
- the fourth duration may be the time domain length of the first time range.
- the fourth duration may be preconfigured or configured by the network, or may be indicated by other terminals or determined by the terminal itself.
- the terminal determines the end position of the first time range according to the first time domain position, including:
- the terminal determines the previous time slot of the time slot corresponding to the first time domain position as the end position of the first time range.
- the terminal may determine the previous time slot of the time domain position corresponding to the start of the DRX continuous timer as the end position of the first time range.
- the terminal may also determine the start position of the first time range according to the first time domain position.
- the time domain position and the third time interval determine the starting position of the first time range.
- the terminal may determine the start position of the first time range according to the end position of the first time range and the fifth duration.
- the fifth duration is the time domain length of the first time range.
- the fifth duration may be preconfigured or configured by the network, or may be indicated by other terminals or determined by the terminal itself.
- whether the terminal needs to enter the wake-up state or the sleep state is indicated by the sequence or the SCI bearer sideline indication information, so that the terminal can enter the sleep state when no data is received, and the energy consumption of the terminal is reduced, thereby achieving energy saving. the goal of.
- FIG. 13 is a schematic block diagram of a terminal 400 according to an embodiment of the present application.
- the terminal 400 may include:
- a receiving unit 410 used for the terminal to receive sideline indication information
- the processing unit 420 is configured to enter the wake-up state or the sleep state according to the sideline indication information.
- the awake state indicates that the terminal needs to perform sidelink data reception or measurement; the sleep state indicates that the terminal does not need to perform sidelink data reception or measurement.
- the sideline indication information is a wake-up signal
- the wake-up signal is used to instruct the terminal to enter a wake-up state.
- the sideline indication information is a sleep signal
- the sleep signal is used to instruct the terminal to enter a sleep state.
- the processing unit 420 is further configured to determine the moment of entering the wake-up state or the sleep state based on the moment of receiving the sideline indication information.
- the moment when the terminal receives the sideline indication information is the moment corresponding to the first time-domain symbol or the last time-domain symbol that carries the sideline indication information.
- the processing unit 420 is further configured to determine the first duration based on the processing time of the terminal.
- the processing time of the terminal is determined based on the time at which the terminal performs sequence detection or lateral channel detection.
- the processing unit 420 is further configured to enter an awake state or a sleep state in the first time slot after the first time slot of the sideline indication information is received.
- the processing unit 420 is further configured to acquire first indication information, and determine the time interval, the number of time slots or the time slot offset according to the first indication information.
- the processing unit 420 is further configured to acquire the first indication information according to pre-configuration information, network configuration information or sideline data sent by other terminals.
- the processing unit 420 is further configured to determine the time slot to enter the wake-up state or the sleep state according to the time slot where the sideline indication information is located and the number of the time slot or the time slot offset.
- the sideline indication information is carried by a sequence.
- processing unit 420 is further configured to: enter the wake-up state when the sequence is the first sequence; and/or enter the sleep state when the sequence is the second sequence.
- processing unit 420 is further configured to: when the sequence is the first sequence, determine the second duration of entering the wake-up state; and/or, when the sequence is the second sequence, determine the third time period entering the dormant state duration.
- the first sequence corresponds to a first cyclic shift value
- the second sequence corresponds to a second cyclic shift value
- the first cyclic shift value has a first correspondence with the wake-up state; and/or the second cyclic shift value has a second correspondence with the sleep state.
- the first correspondence is pre-configured, network-configured or terminal-configured; and/or the second correspondence is pre-configured, network-configured or terminal-configured.
- the processing unit 420 is further configured to: when the first correspondence is pre-configured or network configuration, obtain resource pool configuration information, and determine the first correspondence according to the resource pool configuration information; and/or, when the When the second correspondence is pre-configuration or network configuration, the resource pool configuration information is acquired, and the second correspondence is determined according to the resource pool configuration information.
- the processing unit 420 is further configured to: when the first corresponding relationship is the terminal configuration, obtain SCI, PC5-RRC signaling, MAC CE or MAC PDU, according to the SCI, PC5-RRC signaling, MAC CE Or the MAC PDU determines the first correspondence; and/or, when the second correspondence is the terminal configuration, obtain the SCI, PC5-RRC signaling, MAC CE or MAC PDU, according to the SCI, PC5-RRC signaling, The MAC CE or MAC PDU determines the second correspondence.
- the first cyclic shift value has a third correspondence with the second duration of the wake-up state; and/or the second cyclic shift value has a fourth correspondence with the third duration of the sleep state.
- the third correspondence is pre-configured, network-configured or terminal-configured; and/or the fourth correspondence is pre-configured, network-configured or terminal-configured.
- the processing unit 420 is further configured to: when the third correspondence is pre-configured or network configuration, obtain resource pool configuration information, and determine the third correspondence according to the resource pool configuration information; and/or, when the When the fourth corresponding relationship is pre-configuration or network configuration, the resource pool configuration information is acquired, and the fourth corresponding relationship is determined according to the resource pool configuration information.
- the processing unit 420 is further configured to: when the third corresponding relationship is a terminal configuration, obtain SCI, PC5-RRC signaling, MAC CE or MAC PDU, according to the SCI, PC5-RRC signaling, MAC CE Or the MAC PDU determines the third correspondence; and/or, when the fourth correspondence is the terminal configuration, obtain SCI, PC5-RRC signaling, MAC CE or MAC PDU, according to the SCI, PC5-RRC signaling, The MAC CE or MAC PDU determines the fourth correspondence.
- the second duration is pre-configured, network-configured or terminal-configured; and/or the third duration is pre-configured, network-configured or terminal-configured.
- the processing unit 420 is further configured to: when the second duration is pre-configured or network configuration, obtain resource pool configuration information, and determine the second duration according to the resource pool configuration information; and/or, when the third duration is When the duration is pre-configured or network configuration, the resource pool configuration information is obtained, and the third duration is determined according to the resource pool configuration information.
- the processing unit 420 is further configured to: when the second duration is configured by the terminal, obtain SCI, PC5-RRC signaling, MAC CE or MAC PDU, according to the SCI, PC5-RRC signaling, MAC CE or MAC PDU.
- the MAC PDU determines the second duration; and/or, when the third duration is configured by the terminal, obtain the SCI, PC5-RRC signaling, MAC CE or MAC PDU, according to the SCI, PC5-RRC signaling, MAC CE or The MAC PDU determines the third duration.
- the terminal does not perform sequence detection in the sleep state.
- the terminal does not detect SCI in the sleep state.
- the sequence corresponding to the sideline indication information is independently transmitted independently of other sideline physical channels.
- the sequence corresponding to the side row indication information occupies 2 symbols in the time domain, and is located in the penultimate and third penultimate side row symbols in a time slot.
- the sequence corresponding to the side row indication information is the same as the sequence sent on the two symbols occupied in the time domain.
- a symbol before the first symbol of the sequence corresponding to the sideline indication information is a guard interval GP symbol, and/or, a symbol after the last symbol of the sequence corresponding to the sideline indication information is a GP symbol .
- the candidate transmission resources of the sequence are periodic.
- the time slot used to transmit the PSFCH is simultaneously used to transmit the sequence, or the time slot used to transmit the sequence. Slots are also used to transmit the PSFCH.
- the sequence occupies M physical resource blocks PRB in the frequency domain, where M is an integer greater than or equal to 1.
- the M PRBs are continuous PRBs, and the M PRBs are obtained by performing a modulo operation on M based on the index of the PRBs at the starting positions of the M PRBs in the frequency domain.
- the sequence is generated based on the root sequence, the cyclic shift value and the sequence length.
- sequence is determined according to at least one of the following: source ID, target ID, group ID.
- the transmission resource of the sequence is determined according to at least one of the following: source ID, target ID, group ID.
- the source ID includes the ID of the terminal sending the sequence.
- the target ID includes at least one of the following:
- the source ID is the source ID carried in the SCI
- the target ID is the target ID carried in the SCI.
- the group ID includes a group ID in multicast communication.
- the terminal further includes:
- the configuration information is used to configure the transmission resource set of the sequence
- the transmission resources of the sequence are determined according to the configuration information.
- the configuration information is resource pool configuration information or bandwidth part BWP configuration information.
- the configuration information is pre-configured or network-configured.
- the configuration information includes at least one of the following parameters:
- the second indication information is used to indicate whether it is supported to instruct the terminal to enter the wake-up state or the sleep state through the sideline indication information;
- the third indication information is used to indicate whether the sideline indication information needs to be detected in the dormant state
- Time domain resource indication information used to indicate the time domain resource of the sequence carrying the sideline indication information
- frequency domain resource indication information used to indicate the frequency domain resource of the sequence carrying the sideline indication information
- code domain resource indication information used to indicate the code domain resource of the sequence bearing the sideline indication information
- the time domain resource indication information includes at least one of the following:
- Period information used to indicate the time domain period for transmitting the sideline indication information.
- the slot offset is used to determine the time slot in which the sideline indication information is transmitted within one cycle.
- the time domain period is zero, indicating that the function of instructing the terminal to enter the wake-up state or the sleep state through the sideline indication information is not supported.
- the frequency domain resource indication information includes at least one of the following:
- the frequency domain resource set indication information is used to indicate a frequency domain resource set that can be used to carry the sequence of the sideline indication information.
- the code domain resource indication information includes at least one of the following:
- the root sequence indication information is used to determine the parameters for generating the root sequence
- cyclic shift indication information used to determine the cyclic shift value
- the wake-up duration indication information includes at least one of the following:
- the second duration is used to determine the duration of entering the wake-up state
- the sleep duration indication information includes at least one of the following:
- the third duration is used to determine the duration of entering the sleep state
- the sidelink indication information is carried by the sidelink control information SCI.
- the SCI is a first-order SCI or a second-order SCI.
- the sideline indication information is carried through the information field in the SCI.
- the manner in which the sideline indication information is carried by the information field in the SCI includes at least one of the following:
- the information field is the first value and is used to indicate that the terminal enters the wake-up state
- the second value in the information field is used to indicate that the terminal enters the sleep state.
- the manner in which the sideline indication information is carried by the information field in the SCI includes at least one of the following:
- the first information field in the SCI is used to indicate the wake-up state or the sleep state
- the second information field in the SCI is used to indicate the second duration of the awake state or the third duration of the sleep state.
- the sideline indication information is carried in an SCI format.
- the first SCI format corresponds to an awake state
- the second SCI format corresponds to a sleep state
- the sideline indication information is carried by the scrambling code sequence of the SCI.
- the scrambling code sequence is used to scramble a first bit sequence, where the first bit sequence is a sequence generated by adding a CRC sequence according to the information bits of the SCI.
- the scrambling code sequence is used to scramble a second bit sequence, where the second bit sequence is a bit sequence obtained by channel coding the information bits of the SCI.
- the scrambling sequence is used to indicate the second duration of the awake state and/or the third duration of the sleep state.
- the indication manner of the scrambling sequence includes at least one of the following:
- the scrambling code sequence is used to indicate entering the wake-up state
- the scrambling code sequence is used to indicate entering a sleep state
- the scrambling code sequence is used to indicate the second duration of entering the wake-up state
- the scrambling code sequence is used to indicate a third duration of entering the sleep state.
- the receiving unit 410 is specifically configured to:
- the side row indication information is received within the first time frame.
- processing unit 420 is also used for:
- the start position of the first time range and/or the end position of the first time range is determined according to the first time domain position.
- processing unit 420 is also used for:
- the first time domain position is determined according to the configuration information of the sideline DRX.
- the configuration information of the sideline DRX includes a DRX persistence timer, and the first time domain position is determined according to the start, reset or effective time of the DRX persistence timer.
- processing unit 420 is also used for:
- the first time domain position is determined as the start position of the first time range.
- the first time interval is determined according to pre-configured information, or determined according to network configuration information, or determined according to indication information of other terminals, or determined by the terminal.
- processing unit is also used for:
- the end position of the first time range is determined according to the start position of the first time range and the fourth duration.
- the fourth duration is determined according to pre-configuration information, or determined according to network configuration information, or determined according to indication information of other terminals, or determined by the terminal.
- processing unit 420 is also used for:
- the previous time slot of the time slot corresponding to the first time domain position is determined as the end position of the first time range.
- processing unit 420 is also used for:
- the start position of the first time range is determined according to the end position of the first time range and the fifth duration.
- the fifth duration is determined according to pre-configured information, or determined according to network configuration information, or determined according to indication information of other terminals, or determined by the terminal.
- the terminal 400 in this embodiment of the present application can implement the corresponding functions of the terminal in the foregoing method embodiments.
- each module (sub-module, unit, or component, etc.) in the terminal 400 reference may be made to the corresponding descriptions in the foregoing method embodiments, which will not be repeated here.
- the functions described by each module (submodule, unit or component, etc.) in the terminal 400 of the application embodiment may be implemented by different modules (submodule, unit or component, etc.), or may be implemented by the same module (submodule, unit or component, etc.) implementation.
- FIG. 14 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application.
- the communication device 600 includes a processor 610, and the processor 610 can call and run a computer program from a memory, so that the communication device 600 implements the methods in the embodiments of the present application.
- the communication device 600 may also include a memory 620 .
- the processor 610 may call and run a computer program from the memory 620, so that the communication device 600 implements the methods in the embodiments of the present application.
- the memory 620 may be a separate device independent of the processor 610 , or may be integrated in the processor 610 .
- the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices .
- the transceiver 630 may include a transmitter and a receiver.
- the transceiver 630 may further include antennas, and the number of the antennas may be one or more.
- the communication device 600 may be a terminal device in this embodiment of the present application, and the communication device 600 may implement corresponding processes implemented by the terminal device in each method in the embodiment of the present application, which is not repeated here for brevity.
- FIG. 15 is a schematic structural diagram of a chip 700 according to an embodiment of the present application.
- the chip 700 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the methods in the embodiments of the present application.
- the chip 700 may further include a memory 720 .
- the processor 710 may call and run a computer program from the memory 720 to implement the method executed by the terminal device or the network device in the embodiment of the present application.
- the memory 720 may be a separate device independent of the processor 710 , or may be integrated in the processor 710 .
- the chip 700 may further include an input interface 730 .
- the processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.
- the chip 700 may further include an output interface 740 .
- the processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
- the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which is not repeated here for brevity.
- the chip can be applied to the terminal device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application, which is not repeated here for brevity.
- Chips applied to network equipment and terminal equipment can be the same chip or different chips.
- the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
- the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an off-the-shelf programmable gate array (field programmable gate array, FPGA), an application specific integrated circuit (ASIC) or Other programmable logic devices, transistor logic devices, discrete hardware components, etc.
- DSP digital signal processor
- FPGA field programmable gate array
- ASIC application specific integrated circuit
- the general-purpose processor mentioned above may be a microprocessor or any conventional processor or the like.
- the memory mentioned above may be either volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
- Volatile memory may be random access memory (RAM).
- the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
- FIG. 16 is a schematic block diagram of a communication system 800 according to an embodiment of the present application.
- the communication system 800 includes a first terminal 810 and a second terminal 820 .
- the first terminal 810 is configured to receive sideline indication information; and enter an awake state or a sleep state according to the sideline indication information. Specifically, the first terminal 810 may receive the sideline indication information from the second terminal 820 .
- the first terminal 810 may be used to implement the corresponding functions implemented by the terminal serving as the receiving end in the above method, and the second terminal 820 may be used to implement the corresponding functions implemented by the terminal serving as the receiving end in the above method. For brevity, details are not repeated here.
- the above-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
- software it can 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.
- the computer program instructions When the computer program instructions are loaded and executed on a computer, the procedures or functions according to 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 on or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted over a wire from a website site, computer, server or data center (eg coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) means to another website site, computer, server or data center.
- the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes one or more available media integrated.
- the available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a Solid State Disk (SSD)), and the like.
- a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
- an optical medium eg, a DVD
- a semiconductor medium eg, a Solid State Disk (SSD)
- the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.
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Abstract
本申请涉及一种侧行链路的传输方法和终端,其中,该方法包括:终端接收侧行指示信息;该终端根据所述侧行指示信息进入唤醒状态或休眠状态。本申请实施例,通过侧行指示信息指示终端进入唤醒状态或休眠状态,使得终端在没有数据接收的时候能够转入休眠状态,降低终端功耗,实现节能。
Description
本申请要求申请日为2020年9月30日、申请号为PCT/CN2020/119458、名称为“侧行链路的传输方法和终端”的PCT申请的优先权,该PCT申请的全部内容通过引用结合在本申请中。
本申请涉及通信领域,更具体地,涉及一种侧行链路的传输方法和终端。
设备到设备(Device to Device,D2D)通信是一种基于侧行链路(Sidelink,SL)的传输技术。与传统的蜂窝***中通信数据通过基站接收或者发送的方式不同,D2D***具有更高的频谱效率以及更低的传输时延。车联网(Vehicle to Everything,V2X)***采用终端到终端直接通信的方式。在侧行传输***中,如何降低终端功耗是需要研究的问题。
发明内容
本申请实施例提供一种侧行链路的传输方法和终端,可以降低终端功耗。
本申请实施例提供一种侧行链路的传输方法,包括:
终端接收侧行指示信息;
所述终端根据所述侧行指示信息进入唤醒状态或休眠状态。
本申请实施例提供一种终端,包括:
接收单元,用于接收侧行指示信息;
处理单元,用于根据所述侧行指示信息进入唤醒状态或休眠状态。
本申请实施例提供一种终端设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,以使该终端设备执行上述的侧行链路的传输方法。
本申请实施例提供一种芯片,用于实现上述的侧行链路的传输方法。
具体地,该芯片包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有该芯片的设备执行上述的侧行链路的传输方法。
本申请实施例提供一种计算机可读存储介质,用于存储计算机程序,当该计算机程序被设备运行时使得该设备执行上述的侧行链路的传输方法。
本申请实施例提供一种计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行上述的侧行链路的传输方法。
本申请实施例提供一种计算机程序,当其在计算机上运行时,使得计算机执行上述的侧行链路的传输方法。
本申请实施例,通过侧行指示信息指示终端进入唤醒状态或休眠状态,使得终端在没有数据接收的时候能够转入休眠状态,降低终端功耗,实现节能。
图1是根据本申请实施例的应用场景的示意图。
图2a是网络覆盖范围内侧行通信的示意图。
图2b是部分网络覆盖侧行通信的示意图。
图2c是网络覆盖外侧行通信的示意图。
图3a是单播传输的示意图。
图3b是组播传输的示意图。
图3c是广播传输的示意图。
图4是DRX机制的示意图。
图5是节能唤醒信号控制DRX的示意图。
图6是根据本申请一实施例的侧行链路的传输方法的示意性流程图。
图7是序列承载侧行指示信息的示意图。
图8是没有检测到序列的示意图。
图9是休眠状态中不进行序列检测的示意图。
图10是承载指示信息的序列的结构的示意图。
图11是第一时间范围的示意图一。
图12是第一时间范围的示意图二。
图13是根据本申请一实施例的终端的示意性框图。
图14是根据本申请实施例的通信设备示意性框图。
图15是根据本申请实施例的芯片的示意性框图。
图16是根据本申请实施例的通信***的示意性框图。
下面将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描述。
本申请实施例的技术方案可以应用于各种通信***,例如:全球移动通讯(Global System of Mobile communication,GSM)***、码分多址(Code Division Multiple Access,CDMA)***、宽带码分多址(Wideband Code Division MultipleAccess,WCDMA)***、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long TermEvolution,LTE)***、先进的长期演进(Advanced long term evolution,LTE-A)***、新无线(New Radio,NR)***、NR***的演进***、非授权频谱上的LTE(LTE-based access to unlicensed spectrum,LTE-U)***、非授权频谱上的NR(NR-based access to unlicensed spectrum,NR-U)***、非地面通信网络(Non-Terrestrial Networks,NTN)***、通用移动通信***(Universal Mobile Telecommunication System,UMTS)、无线局域网(Wireless Local Area Networks,WLAN)、无线保真(Wireless Fidelity,WiFi)、第五代通信(5th-Generation,5G)***或其他通信***等。
通常来说,传统的通信***支持的连接数有限,也易于实现,然而,随着通信技术的发展,移动通信***将不仅支持传统的通信,还将支持例如,设备到设备(Device to Device,D2D)通信,机器到机器(Machine to Machine,M2M)通信,机器类型通信(Machine Type Communication,MTC),车辆间(Vehicle to Vehicle,V2V)通信,或车联网(Vehicle to everything,V2X)通信等,本申请实施例也可以应用于这些通信***。
可选地,本申请实施例中的通信***可以应用于载波聚合(Carrier Aggregation,CA)场景,也可以应用于双连接(Dual Connectivity,DC)场景,还可以应用于独立(Standalone,SA)布网场景。
可选地,本申请实施例中的通信***可以应用于非授权频谱,其中,非授权频谱也可以认为是共享频谱;或者,本申请实施例中的通信***也可以应用于授权频谱,其中,授权频谱也可以认为是非共享 频谱。
本申请实施例结合网络设备和终端设备描述了各个实施例,其中,终端设备也可以称为用户设备(UserEquipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。
终端设备可以是WLAN中的站点(STAION,ST),可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、下一代通信***例如NR网络中的终端设备,或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)网络中的终端设备等。
在本申请实施例中,终端设备可以部署在陆地上,包括室内或室外、手持、穿戴或车载;也可以部署在水面上(如轮船等);还可以部署在空中(例如飞机、气球和卫星上等)。
在本申请实施例中,终端设备可以是手机(Mobile Phone)、平板电脑(Pad)、带无线收发功能的电脑、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)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。
作为示例而非限定,在本申请实施例中,该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能首饰等。
在本申请实施例中,网络设备可以是用于与移动设备通信的设备,网络设备可以是WLAN中的接入点(Access Point,AP),GSM或CDMA中的基站(Base Transceiver Station,BTS),也可以是WCDMA中的基站(NodeB,NB),还可以是LTE中的演进型基站(Evolutional Node B,eNB或eNodeB),或者中继站或接入点,或者车载设备、可穿戴设备以及NR网络中的网络设备(gNB)或者未来演进的PLMN网络中的网络设备或者NTN网络中的网络设备等。
作为示例而非限定,在本申请实施例中,网络设备可以具有移动特性,例如网络设备可以为移动的设备。可选地,网络设备可以为卫星、气球站。例如,卫星可以为低地球轨道(low earth orbit,LEO)卫星、中地球轨道(medium earth orbit,MEO)卫星、地球同步轨道(geostationary earth orbit,GEO)卫星、高椭圆轨道(High Elliptical Orbit,HEO)卫星等。可选地,网络设备还可以为设置在陆地、水域等位置的基站。
在本申请实施例中,网络设备可以为小区提供服务,终端设备通过该小区使用的传输资源(例如,频域资源,或者说,频谱资源)与网络设备进行通信,该小区可以是网络设备(例如基站)对应的小区,小区可以属于宏基站,也可以属于小小区(Small cell)对应的基站,这里的小小区可以包括:城市小区 (Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等,这些小小区具有覆盖范围小、发射功率低的特点,适用于提供高速率的数据传输服务。
图1示例性地示出了一种通信***100。该通信***包括一个网络设备110和两个终端设备120。可选地,该通信***100可以包括多个网络设备110,并且每个网络设备110的覆盖范围内可以包括其它数量的终端设备120,本申请实施例对此不做限定。
可选地,该通信***100还可以包括移动性管理实体(Mobility Management Entity,MME)、接入与移动性管理功能(Access and Mobility Management Function,AMF)等其他网络实体,本申请实施例对此不作限定。
其中,网络设备又可以包括接入网设备和核心网设备。即无线通信***还包括用于与接入网设备进行通信的多个核心网。接入网设备可以是长期演进(long-term evolution,LTE)***、下一代(移动通信***)(nextradio,NR)***或者授权辅助接入长期演进(authorized auxiliary access long-term evolution,LAA-LTE)***中的演进型基站(evolutional node B,简称可以为eNB或e-NodeB)宏基站、微基站(也称为“小基站”)、微微基站、接入站点(access point,AP)、传输站点(transmission point,TP)或新一代基站(new generationNode B,gNodeB)等。
应理解,本申请实施例中网络/***中具有通信功能的设备可称为通信设备。以图1示出的通信***为例,通信设备可包括具有通信功能的网络设备和终端设备,网络设备和终端设备可以为本申请实施例中的具体设备,此处不再赘述;通信设备还可包括通信***中的其他设备,例如网络控制器、移动管理实体等其他网络实体,本申请实施例中对此不做限定。
应理解,本文中术语“***”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一种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:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
应理解,在本申请的实施例中提到的“指示”可以是直接指示,也可以是间接指示,还可以是表示具有关联关系。举例说明,A指示B,可以表示A直接指示B,例如B可以通过A获取;也可以表示A间接指示B,例如A指示C,B可以通过C获取;还可以表示A和B之间具有关联关系。
在本申请实施例的描述中,术语“对应”可表示两者之间具有直接对应或间接对应的关系,也可以表示两者之间具有关联关系,也可以是指示与被指示、配置与被配置等关系。
为便于理解本申请实施例的技术方案,以下对本申请实施例的相关技术进行说明,以下相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合,其均属于本申请实施例的保护范围。
本申请实施例的技术方案可以应用于不同网络覆盖环境下的侧行通信中。在侧行通信中,根据进行通信的终端所处的网络覆盖情况,可以分为多种类型。例如,网络覆盖内侧行通信,部分网络覆盖侧行通信,及网络覆盖外侧行通信,分别如图2a、图2b和图2c所示。
如图2a所示:在网络覆盖内侧行通信中,所有进行侧行通信的终端均处于同一基站的覆盖范围内,从而,上述终端均可以通过接收基站的配置信令,基于相同的侧行配置进行侧行通信。
如图2b所示:在部分网络覆盖侧行通信情况下,部分进行侧行通信的终端位于基站的覆盖范围内。这部分终端能够接收到基站的配置信令,而且根据基站的配置进行侧行通信。而位于网络覆盖范围外的终端,无法接收基站的配置信令。在这种情况下,网络覆盖范围外的终端将根据预配置(pre-configuration)信息及位于网络覆盖范围内的终端发送的侧行广播信道PSBCH中携带的信息确定侧行配置,进行侧行 通信。
如图2c所示:对于网络覆盖外侧行通信,所有进行侧行通信的终端均位于网络覆盖范围外,所有终端均根据预配置信息确定侧行配置进行侧行通信。
关于D2D/V2X,在3GPP中包括两种传输模式:第一模式和第二模式。
第一模式:终端的传输资源是由基站分配的。终端根据基站分配的资源在侧行链路上进行数据的发送。基站可以为终端分配单次传输的资源,也可以为终端分配半静态传输的资源。如图2a中,终端位于网络覆盖范围内,网络为终端分配侧行传输使用的传输资源。
第二模式:终端在资源池中选取一个资源进行数据的传输。如图2c中,终端位于小区覆盖范围外,终端在预配置的资源池中自主选取传输资源进行侧行传输。或者,如图2a中,终端在网络配置的资源池中自主选取传输资源进行侧行传输。
在NR-V2X中,需要支持自动驾驶,因此对车辆之间数据交互提出了更高的要求,如更高的吞吐量、更低的时延、更高的可靠性、更大的覆盖范围、更灵活的资源分配等。
在LTE-V2X中,支持广播传输方式,在NR-V2X中,引入了单播和组播的传输方式。对于单播传输,其接收端终端只有一个终端,如图3a中,UE1、UE2之间进行单播传输。对于组播传输,其接收端是一个通信组内的所有终端,或者是在一定传输距离内的所有终端。如图3b,UE1、UE2、UE3和UE4构成一个通信组,其中UE1发送数据,该组内的其他终端设备都是接收端终端。对于广播传输方式,其接收端是发送端终端周围的任意一个终端。如图3c,UE1是发送端终端,其周围的其他终端,UE2-UE6都是接收端终端。
下面介绍Uu口(基站和终端之间的空中接口)的DRX机制,如图4所示:
在无线网络中,当有数据需要进行传输时,用户设备(User Equipment,UE)要一直监听物理下行控制信道(Physical Downlink Control Channel,PDCCH),根据网络侧发送的指示消息对数据进行收发。这样导致UE的功耗和数据传输的时延都比较大。因此3GPP标准协议在LTE***中引入非连续接收(Discontinuous Reception,DRX)节能策略。
DRX的基本机制是为处于无线资源控制连接(Radio Resource Control Connected,RRC_CONNECTED)状态的UE配置一个DRX周期(DRX cycle)。DRX cycle由“On Duration(持续状态)”和“OffDuration(不接收状态)”组成:在“On Duration”时间内,UE监听并接收物理下行控制信道(Physical Downlink Control Channel,PDCCH),称为激活期;在“OffDuration”时间内,UE不接收PDCCH以减少功耗,称为休眠期。
在DRX操作中,终端根据网络配置的一些定时器参数来控制终端On Duration和Off Duration。若On Duration期间收到数据调度,则终端基于DRX定时器的控制持续监听PDCCH直至数据传输完毕。否则若终端在On Duration未收到数据调度,则终端进入Off Duration以实现节能。
下面介绍NR***中的终端节能机制:
由于终端处于连接态的能耗占NR终端能耗的绝大部分,因此NR Rel-16节能唤醒信号也是用于终端处于RRC_CONNECTED状态时的节能。一种示例性的终端节能机制为DRX。当配置DRX时,终端在DRX On Duration监听PDCCH,若On Duration期间收到数据调度,则终端基于DRX定时器的控制持续监听PDCCH直至数据传输完毕。否则若终端在DRX On Duration未收到数据调度,则终端进入OffDuration以实现节能。可见,DRX是一种以DRX周期为时间颗粒度的节能控制机制,因此不能实 现最优化功耗控制。比如即使终端没有数据调度,终端在周期性启动DRX On Duration定时器运行期间也要监听PDCCH,因此依然存在功率浪费的情况。
为了实现终端进一步的节能,NR节能增强引入了节能唤醒信号。标准化的节能唤醒信号与DRX机制结合使用。其具体的技术原理是,终端在DRX On Duration之前接收节能唤醒信号的指示。如图5所示,为通过节能唤醒信号控制DRX的示例,当终端在一个DRX周期有数据传输时,节能唤醒信号“唤醒”终端,以在DRX On Duration期间监听PDCCH。否则,当终端在一个DRX周期没有数据传输时,节能唤醒信号不“唤醒”终端,终端在DRX On Duration期间不需要监听PDCCH。相比DRX机制,在终端没有数据传输时,终端可省略DRX On Duration期间PDCCH监听,从而实现节能。终端在DRX On Duration之前的时间被称为非激活时间。终端在DRX OnDuration的时间被称为激活时间。
下面介绍基于PDCCH的节能信号:
NR***中利用PDCCH作为节能信号:
可以直接复用PDCCH的设计,包括编码、加扰、资源映射、搜索空间,CORESET等方面,因此标准化的工作量较小。
与其他信号传输具有良好的兼容于复用特性。由于相关***已经支持PDCCH信道,因此PDCCH与其他各信道如PDSCH等具有良好的兼容与复用特性。
在增强侧行链路(SideLink,SL)技术中,需要讨论侧行链路传输中的终端节能技术,如部分侦听(partial sensing)以及在侧行链路上引入DRX机制。在此基础上,还可以增强以降低终端功耗。
图6是根据本申请一实施例的侧行链路的传输方法200的示意性流程图。该方法可选地可以应用于图1至图3c所示的中任一***,但并不仅限于此。该方法包括以下内容的至少部分内容。
S210、终端接收侧行指示信息。
S220、该终端根据该侧行指示信息进入唤醒状态或休眠状态。
示例性地,终端A可以从终端B接收侧行指示信息,该侧行指示信息可以指示终端A进入唤醒状态或休眠状态。如果终端A处于唤醒状态,该侧行指示信息指示唤醒状态(或指示进入唤醒状态),则终端A可以保持唤醒状态。如果终端A处于唤醒状态,该侧行指示信息指示休眠状态(或指示进入休眠状态),则终端A可以转换为休眠状态。如果终端A处于休眠状态,该侧行指示信息指示唤醒状态(或指示进入唤醒状态),则终端A可以转换为唤醒状态。如果终端A处于休眠状态,该侧行指示信息指示休眠状态(或指示进入休眠状态),则终端A可以保持休眠状态。
可选地,该唤醒状态表示该终端需要进行侧行链路数据接收或测量;该休眠状态表示终端不需要进行侧行链路数据接收或测量。示例性地,唤醒状态是终端处于DRX On Duration状态或者进入DRX On Duration状态,终端在On Duration期间内进行侧行数据的接收或测量;休眠状态是终端处于DRX Off Duration状态或者不进入DRX On Duration状态,终端在该期间内不进行侧行数据的接收或测量。
可选地,该侧行指示信息为唤醒信号,该唤醒信号用于指示该终端进入唤醒状态。
可选地,该侧行指示信息为休眠信号,该休眠信号用于指示该终端进入休眠状态。
可选地,该终端根据该侧行指示信息进入唤醒状态或休眠状态,包括:该终端基于接收到该侧行指示信息的时刻,确定进入唤醒状态或休眠状态的时刻。示例性地,T是终端接收到指示信息的时刻,终端可以在T时间后的第一个时隙进入唤醒状态或休眠状态。示例性地,T是终端接收到指示信息的时刻,Tproc是终端处理时间,终端可以在T+Tproc时间后的第一个时隙进入唤醒状态或休眠状态。
可选地,该终端接收到该侧行指示信息的时刻为承载该侧行指示信息的第一个时域符号或最后一个时域符号对应的时刻。示例性地,该终端接收到该侧行指示信息的时刻为承载该侧行指示信息的第一个时域符号开始位置对应的时刻;或,该终端接收到该侧行指示信息的时刻为承载该侧行指示信息的最后一个时域符号结束位置对应的时刻。
可选地,该方法还包括:确定第一时长。
可选地,该终端基于接收到该侧行指示信息的时刻,确定进入唤醒状态或休眠状态的时刻,包括:该终端在接收到该侧行指示信息该第一时长后的第一个时隙进入唤醒状态或休眠状态。
可选地,该方法还包括:基于该终端的处理时间确定第一时长。
示例性地,如果该侧行指示信息的时刻为承载该侧行指示信息的第一个时域符号,第一时长为终端处理时间对应的时长加上承载该指示信息的序列或信道占据的时长。
示例性地,如果终端接收到该侧行指示信息的时刻为承载该侧行指示信息的最后一个时域符号对应的时刻,第一时长可以是终端处理时间对应的时长。
可选地,该终端的处理时间基于该终端进行序列检测或侧行信道检测的时间确定。其中,侧行信道检测的时间包括以下至少一种:检测PSCCH的时间,检测第二阶SCI的时间,检测PSSCH的时间,检测PSCCH和PSSCH的总时间,检测PSCCH和第二阶SCI的总时间,检测PSCCH、第二阶SCI和PSSCH的总时间。
可选地,该方法还包括:该终端获取第一指示信息,根据该第一指示信息确定时间间隔、时隙个数或时隙偏移量。
可选地,该方法还包括:该终端根据预配置信息、网络配置信息或其他终端发送的侧行数据获取该第一指示信息。具体地,预配置信息或网络配置信息,可以是预配置的资源池信息或网络配置的资源池信息。其他终端发送的侧行数据,可以是其他终端发送的侧行链路控制信息(Sidelink Control Information,SCI)、PC5-RRC信令、媒体接入控制(Medium Access Control,MAC)控制单元(Control Element,CE)、MAC协议数据单元(Protocol Data Unit,PDU)等。
可选地,该终端基于接收到该侧行指示信息的时刻,确定进入唤醒状态或休眠状态的时刻,包括:该终端根据该侧行指示信息所在的时隙以及该时间间隔、时隙个数或该时隙偏移量确定进入唤醒状态或休眠状态的时隙。
示例性地,通过预配置的资源池信息中的指示信息确定时间间隔是2个时隙,该时间间隔表示终端接收到该侧行指示信息的时隙与转换到唤醒状态或休眠状态的时隙之间的时间间隔,例如,终端处于唤醒状态,在时隙3接收到该侧行指示信息指示进入休眠状态,则该终端在时隙5进入休眠状态。
示例性地,通过网络配置的资源池信息中的指示信息确定时隙偏移量是2个时隙,该时隙偏移量表示终端接收到该侧行指示信息的时隙与转换到唤醒状态或休眠状态的时隙之间的时间间隔。例如,终端处于唤醒状态,在时隙3接收到该侧行指示信息指示进入休眠状态,则该终端在时隙5进入休眠状态。
示例性地,终端A接收终端B发送的SCI,该SCI中包括指示信息指示时间间隔是2个时隙,该时间间隔表示终端接收到该侧行指示信息的时隙与转换到唤醒状态或休眠状态的时隙之间的时间间隔。例如,终端A处于唤醒状态,在时隙3接收到终端B发送的侧行指示信息指示进入休眠状态,则终端A在时隙5进入休眠状态。
可选地,该侧行指示信息通过序列承载。
可选地,该方法还包括:当该序列为第一序列时,该终端进入唤醒状态;和/或,当该序列为第二序列时,该终端进入休眠状态。示例性地,承载侧行指示信息的序列的发送周期包括多个时隙,在每个时隙终端可以进行序列检测。例如,如果在时隙0检测到第一序列时,终端进入唤醒状态;在时隙2检测到第二序列时,该终端进入休眠状态。
可选地,该方法还包括:当该序列为第一序列时,该终端确定进入唤醒状态的第二时长;和/或,当该序列为第二序列时,该终端确定进入休眠状态的第三时长。具体地,终端检测到第一序列时,确定进入唤醒状态,并且在唤醒状态持续第二时长对应的时间;终端检测到第二序列时,确定进入休眠状态,并且在休眠状态持续第三时长对应的时间。第二时长和第三时长是可配置的,或协议规定的。对于可配置的情况,该参数可以是预配置、网络配置或终端配置。例如,第二时长和第三时长可以是发送侧行指示信息序列的终端配置的。此外,第二时长和第三时长可以独立配置。
可选地,该第一序列对应第一循环移位值,和/或,该第二序列对应第二循环移位值。具体地,根据第一循环移位值生成该第一序列,和/或,根据第二循环移位值生成该第二序列。
可选地,该第一循环移位值与该唤醒状态具有第一对应关系;和/或,该第二循环移位值与该休眠状态具有第二对应关系。
可选地,该第一对应关系是预配置的、网络配置的或终端配置的;和/或,该第二对应关系是预配置的、网络配置的或终端配置的。示例性地,如果终端检测到第一序列,可以获取用于生成第一序列的第一循环移位值,再根据第一对应关系可以获取第一循环移位值对应唤醒状态。这种情况下,终端可以保持或进入唤醒状态。如果终端检测到第二序列,可以获取用于生成第二序列的第二循环移位值,再根据第二对应关系可以获取第二循环移位值对应休眠状态。这种情况下,终端可以保持或进入休眠状态。
可选地,该方法还包括:
当该第一对应关系是预配置或网络配置时,该终端获取资源池配置信息,根据资源池配置信息确定该第一对应关系;和/或,
当该第二对应关系是预配置或网络配置时,该终端获取资源池配置信息,根据资源池配置信息确定该第二对应关系。
可选地,该方法还包括:
当该第一对应关系是终端配置时,该终端获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据该SCI、PC5-RRC信令、MAC CE或MAC PDU确定该第一对应关系;和/或,
当该第二对应关系是终端配置时,该终端获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据该SCI、PC5-RRC信令、MAC CE或MAC PDU确定该第二对应关系。
可选地,该第一循环移位值与该唤醒状态的第二时长具有第三对应关系;和/或,该第二循环移位值与该休眠状态的第三时长具有第四对应关系。
可选地,该第三对应关系是预配置的、网络配置的或终端配置的;和/或,该第四对应关系是预配置的、网络配置的或终端配置的。
示例性地,如果终端检测到第一序列,可以获取用于生成第一序列的第一循环移位值,再根据第一对应关系可以获取第一循环移位值对应唤醒状态,根据第三对应关系获取唤醒状态的第二时长。这种情况下,终端可以保持或进入唤醒状态,并持续第二时长。如果终端检测到第二序列,可以获取用于生成第二序列的第二循环移位值,再根据第二对应关系可以获取第二循环移位值对应休眠状态,根据第四对 应关系获取休眠状态的第三时长。这种情况下,终端可以保持或进入休眠状态,并持续第三时长。
可选地,该方法还包括:
当该第三对应关系是预配置或网络配置时,该终端获取资源池配置信息,根据资源池配置信息确定该第三对应关系;和/或,
当该第四对应关系是预配置或网络配置时,该终端获取资源池配置信息,根据资源池配置信息确定该第四对应关系。
可选地,该方法还包括:
当该第三对应关系是终端配置时,该终端获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据该SCI、PC5-RRC信令、MAC CE或MAC PDU确定该第三对应关系;和/或,
当该第四对应关系是终端配置时,该终端获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据该SCI、PC5-RRC信令、MAC CE或MAC PDU确定该第四对应关系。
可选地,该第二时长是预配置的、网络配置的或终端配置的;和/或,该第三时长是预配置的、网络配置的或终端配置的。
可选地,该方法还包括:
当该第二时长是预配置或网络配置时,该终端获取资源池配置信息,根据资源池配置信息确定该第二时长;和/或,
当该第三时长是预配置或网络配置时,该终端获取资源池配置信息,根据资源池配置信息确定该第三时长。
可选地,该方法还包括:
当该第二时长是终端配置时,该终端获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据该SCI、PC5-RRC信令、MAC CE或MAC PDU确定该第二时长;和/或,
当该第三时长是终端配置时,该终端获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据该SCI、PC5-RRC信令、MAC CE或MAC PDU确定该第三时长。
可选地,该终端在该休眠状态不进行序列检测。示例性地,如果终端被配置为在休眠状态不进行序列检测,在时隙0检测到第一序列时终端进入唤醒状态,持续时长为4个时隙,在时隙5自动转入休眠状态。在时隙6检测到第二序列,指示进入休眠状态,并且持续时长6个时隙,则在时隙7至时隙12为休眠状态,并且在时隙8和时隙12也不会进行序列检测。
可选地,该终端在该休眠状态不检测SCI。
示例性地,终端在休眠状态不检测序列也不检测侧行数据如SCI等。针对SCI承载指示信息的情况,终端在休眠状态不检测SCI。
可选地,该侧行指示信息对应的序列独立于其他侧行物理信道单独传输。
可选地,该侧行指示信息对应的序列在时域上占据2个符号,位于一个时隙中倒数第二个和倒数第三个侧行符号。示例性地,如果一个时隙中包括14个正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)符号,该序列可以位于第12和第13个侧行符号。
可选地,该侧行指示信息对应的序列在时域上占据的2个符号上发送的序列相同。
可选地,承载该侧行指示信息对应的序列的第一个符号之前一个符号为保护间隔(Guard period,GP)符号,和/或,承载该侧行指示信息对应的序列的最后一个符号之后一个符号为GP符号。
可选地,该序列的候选传输资源是周期性的。
可选地,当资源池中配置了物理侧行反馈信道(Physical Sidelink Feedback Channel,PSFCH)传输资源和该序列的传输资源时,用于传输PSFCH的时隙同时用于传输该序列,或者,用于传输该序列的时隙同时用于传输该PSFCH。进一步的,该序列和该PSFCH占据相同的时域符号。
可选地,该序列在频域占据M个物理资源块(Physical Resource Block,PRB),M是大于或等于1的整数。
可选地,该M个PRB是连续的PRB,该M个PRB在频域的起始位置基于PRB的索引对M进行取模运算得到的。示例性的,该序列占据的起始PRB位置根据mod(PRB_index,M)=0得到;其中,mod()表示取模运算,PRB_index表示PRB的索引。
可选地,该序列是基于根序列、循环移位值和序列长度生成的。
示例性地,基于相同的根序列,不同的循环移位值,可以得到不同的序列。例如上述的第一序列和第二序列可以为基于相同的根序列以及不同的循环移位值得到的。
示例性地,基于不同的根序列也可以得到不同的序列。例如上述的第一序列和第二序列可以为基于不同根序列生成。
可选地,基于该根序列对应的组号(group number)确定进入唤醒状态或休眠状态。
可选地,该序列是根据以下至少之一确定的:源标识(Identity,ID),目标ID,组ID。
可选地,该目标ID是终端在通信组内的组内ID。例如,在图3b中,一个通信组包括4个终端,UE1、UE2、UE3和UE4,其对应的组内ID分别为ID#0、ID#1、ID#2和ID#3,此时,不同的组内终端可以分别根据其对应的组内ID确定相应的序列。例如,对于12个循环移位值的情况,前6个用于指示唤醒状态,后6个指示休眠状态。当该序列用于指示唤醒状态时,根据源ID、目标ID和/或组ID在前6个循环移位值中确定一个。当该序列用于指示休眠状态时,根据源ID、目标ID或组ID在后6个循环移位值中确定一个。
可选地,该序列的传输资源是根据以下至少之一确定的:源ID,目标ID,组ID。
可选地,该目标ID是终端在通信组内的组内ID。例如,该序列的候选传输资源为N(包括频域资源和码域资源),根据源ID、目标ID和/或组ID在该N个传输资源中确定一个用于传输该序列传输资源。可选地,该源ID包括发送该序列的终端的ID。
可选地,该目标ID包括以下至少之一:
单播通信中接收该序列的终端的ID;
组播通信中的组ID;
广播通信中的业务类型对应的ID。
可选地,该源ID是在SCI中携带的源ID,该目标ID是在SCI中携带的目标ID。
可选地,该组ID包括组播通信中的组ID。
可选地,该方法还包括:
获取配置信息,该配置信息用于配置该序列的传输资源集合;
根据该配置信息确定该序列的传输资源。
示例性地,该配置信息用于配置序列的候选传输资源集合或可用传输资源集合。终端可以根据其他信息,如源ID、目标ID或组ID,确定具体的传输资源。
可选地,该配置信息是资源池配置信息或带宽部分(BWP)配置信息。具体地,基于资源池配置信息或侧行BWP配置信息,可以确定用于配置承载该序列的传输资源的配置信息。基于每个资源池或每个侧行BWP,可以配置承载该序列的传输资源。
可选地,该配置信息是预配置或网络配置的。
可选地,该配置信息包括以下参数至少之一:
第二指示信息,用于指示是否支持通过该侧行指示信息指示终端进入唤醒状态或休眠状态;
第三指示信息,用于指示在休眠状态中是否需要检测该侧行指示信息;
时域资源指示信息,用于指示承载该侧行指示信息的序列的时域资源;
频域资源指示信息,用于指示承载该侧行指示信息的序列的频域资源;
码域资源指示信息,用于指示承载该侧行指示信息的序列的码域资源;
唤醒时长指示信息;
休眠时长指示信息。
示例性地,可以利用第二指示信息指示是否支持通过该侧行指示信息指示终端进入唤醒状态或休眠状态。如果支持,再判断该侧行指示信息指示终端进入唤醒状态或指示终端进入休眠状态。如果不支持,则可以不进行后续判断。
示例性地,可以利用第三指示信息指示终端在休眠状态中是否需要检测该侧行指示信息。如果是,则终端在休眠状态中也检测该侧行指示信息。否则,终端在休眠状态中不检测该侧行指示信息。如果该侧行指示信息通过序列承载,则该第三指示信息指示终端在休眠状态中是否需要进行序列检测;如果该侧行指示信息通过SCI承载,则该第三指示信息指示终端在休眠状态中是否需要进行SCI检测。
可选地,该时域资源指示信息包括以下至少之一:
周期信息,用于指示传输该侧行指示信息的时域周期;
时隙偏移量,用于确定在一个周期内传输该侧行指示信息所在的时隙。
可选地,该时域周期为零,表示不支持通过侧行指示信息指示终端进入唤醒状态或休眠状态的功能。
可选地,该频域资源指示信息包括以下至少之一:
承载该侧行指示信息的序列对应的子信道个数、PRB个数或序列长度,用于确定承载该侧行指示信息的序列的长度;
频域资源集合指示信息,用于指示可用于承载该侧行指示信息的序列的频域资源集合。
例如,通过比特位图,或指示频域起始位置以及长度的方式指示可用于承载该侧行指示信息的序列的频域资源集合。
可选地,该码域资源指示信息包括以下至少之一:
根序列指示信息,用于确定生成根序列的参数;
循环移位指示信息,用于确定循环移位值;
循环移位对的个数,用于指示支持的循环移位对的个数;
可选地,该唤醒时长指示信息包括以下至少之一:
第二时长,用于确定进入唤醒状态的时长;
循环移位值和唤醒时长的对应关系;
SCI中携带的用于指示时长的信息域的取值与唤醒时长的对应关系。
可选地,该休眠时长指示信息包括以下至少之一:
第三时长,用于确定进入休眠状态的时长;
循环移位值和休眠时长的对应关系;
SCI中携带的用于指示时长的信息域的取值与休眠时长的对应关系。
可选地,该侧行指示信息通过侧行链路控制信息SCI承载。
可选地,该SCI是第一阶SCI或第二阶SCI。
可选地,该侧行指示信息通过SCI中的信息域承载。
可选地,该侧行指示信息通过SCI中的信息域承载的方式包括以下至少之一:
该信息域为第一值用于指示该终端进入唤醒状态;
该信息域为第二值用于指示该终端进入休眠状态。
例如,该信息域占用1个比特,这个比特为1用于指示该终端进入唤醒状态,为0用于指示该终端进入休眠状态。
可选地,该侧行指示信息通过SCI中的信息域承载的方式包括以下至少之一:
该SCI中的第一信息域用于指示唤醒状态或休眠状态;
该SCI中的第二信息域用于指示唤醒状态的第二时长或休眠状态的第三时长。
示例性地,SCI包括第一信息域,例如第一信息域占用1个比特,用于指示唤醒状态或休眠状态。
示例性地,SCI包括第一信息域和第二信息域,在第一信息域指示唤醒状态的情况下,第二信息域指示唤醒时长;在第一信息域指示休眠状态的情况下,第二信息域指示休眠时长。第二信息域可以多个比特位表示不同的时长。例如,第二信息域包括2个比特,比特索引值为0表示2个时隙,比特索引值为1表示4个时隙,比特索引值为2表示8个时隙,比特索引值为3表示16个时隙。可选的,第二信息域的取值与第二时长或第三时长的对应关系根据预配置的、网络配置的或终端配置的。
可选地,该侧行指示信息通过SCI的格式承载。
可选地,第一SCI格式对应唤醒状态,和/或,第二SCI格式对应休眠状态。示例性地,如果检测到该侧行指示信息为第一SCI格式,则终端进入唤醒状态。如果检测到该侧行指示信息为第二SCI格式,则终端进入休眠状态。
可选地,该侧行指示信息通过SCI的扰码序列承载。
可选地,该扰码序列用于对第一比特序列进行加扰,其中,该第一比特序列是根据该SCI的信息比特经过附加CRC序列生成的序列。示例性地,SCI的信息比特经过附加CRC序列生成第一比特序列。利用扰码序列可以对第一比特序列中CRC序列对应的比特位进行加扰处理。
可选地,该扰码序列用于对第二比特序列进行加扰,其中,该第二比特序列是该SCI的信息比特经过信道编码处理后的比特序列。示例性地,SCI的信息比特经过信道编码处理生成第二比特序列。利用扰码序列可以对第二比特序列进行加扰处理。
可选地,该扰码序列用于指示唤醒状态的第二时长和/或休眠状态的第三时长。
可选地,该扰码序列的指示方式包括以下至少之一:
当该扰码序列由第一初始值生成时,该扰码序列用于指示进入唤醒状态;
当该扰码序列由第二初始值生成时,该扰码序列用于指示进入休眠状态;
当该扰码序列由第三初始值生成时,该扰码序列用于指示进入唤醒状态的第二时长;
当该扰码序列由第四初始值生成时,该扰码序列用于指示进入休眠状态的第三时长。
可选地,该扰码序列生成器的初始值由第一参数确定。示例性地,可以预先设置或配置扰码序列生成器的初始值与终端状态的对应关系,以及与终端进入每一种状态的时长的对应关系。扰码序列生成器的初始值用于生成扰码序列。例如,第一初始值对应唤醒状态;第二初始值对应休眠状态;第三初始值对应唤醒状态的第二时长,或称为唤醒时长;第四初始值对应休眠状态的第三时长,或称为休眠时长。终端收到扰码序列后,解析该扰码序列,根据生成该扰码序列的初始值确定终端的操作。例如,如果该扰码序列由第一初始值生成,则终端进入唤醒状态。再如,如果该扰码序列由第二初始值生成,则终端进入休眠状态。再如,如果该扰码序列由第三初始值生成,则终端进入唤醒状态并保持第二时长。再如,如果该扰码序列由第四初始值生成,则终端进入休眠状态并保持第三时长。
可选地,终端接收侧行指示信息,包括:该终端在第一时间范围内接收该侧行指示信息。
可选地,该方法还包括:
终端根据第一时域位置确定该第一时间范围的起始位置和/或该第一时间范围的结束位置。
可选地,该方法还包括:
终端获取侧行DRX的配置信息;
终端根据该侧行DRX的配置信息确定该第一时域位置。
可选地,该侧行DRX的配置信息包括DRX持续定时器(DRX_onDurationTimer),该第一时域位置是根据该DRX持续定时器的启动、重置或生效时刻确定的。
示例性地,第一时域位置可以为启动或重置DRX持续定时器的时域位置。
可选地,终端根据第一时域位置确定该第一时间范围的起始位置,包括:
终端根据该第一时域位置和第一时间间隔确定该第一时间范围的起始位置;或者,
终端将该第一时域位置确定为该第一时间范围的起始位置。
示例性地,终端可以将DRX持续定时器启动所对应的时域位置确定为接收该侧行指示信息的第一时间范围的起始位置,也可以根据第一时间间隔,在DRX持续定时器启动所对应的时域位置之前或之后,确定第一时间范围的起始位置。
可选地,该第一时间间隔是根据预配置信息确定的,或根据网络配置信息确定的,或根据其他终端的指示信息确定的,或该终端确定的。
可选地,在终端根据第一时域位置确定该第一时间范围的起始位置之后,该方法还包括:
该终端根据该第一时间范围的起始位置和第四时长确定该第一时间范围的结束位置。
可选地,第四时长为第一时间范围的时域长度。
可选地,该第四时长是根据预配置信息确定的,或根据网络配置信息确定的,或根据其他终端的指示信息确定的,或该终端确定的。也就是说,第一时间范围的时域长度可以是预配置的或网络配置的,也可以是其他终端指示的或该终端自己确定的。
可选地,该终端根据第一时域位置确定该第一时间范围的结束位置,包括:
该终端将该第一时域位置对应的时隙的前一个时隙确定为该第一时间范围的结束位置。
示例性地,终端可以将DRX持续定时器启动所对应的时域位置的前一个时隙确定为第一时间范围的结束位置。
可选地,在终端根据第一时域位置确定该第一时间范围的结束位置之后,该方法还包括:
该终端根据该第一时间范围的结束位置和第五时长确定该第一时间范围的起始位置。
可选地,第五时长为第一时间范围的时域长度。
可选地,该第五时长是根据预配置信息确定的,或根据网络配置信息确定的,或根据其他终端的指示信息确定的,或该终端确定的。也就是说,第一时间范围的时域长度可以是预配置的或网络配置的,也可以是其他终端指示的或该终端自己确定的。
本申请实施例,通过侧行指示信息指示终端进入唤醒状态或休眠状态,可以使得终端在没有数据接收的时候能够转入休眠状态,降低终端功耗,实现节能。
以下为本申请实施例中的具体示例:
示例1:终端接收指示信息例如侧行指示信息,根据该侧行指示信息进入唤醒(wake-up)或休眠(go-to-sleep)状态。
其中,唤醒状态可以表示终端需要进行侧行链路数据接收或测量;休眠状态可以表示终端不需要进行侧行链路数据接收或测量。
例如,唤醒状态是DRX On Duration状态,终端在On Duration期间内进行侧行数据的接收或测量;休眠状态是DRX Off Duration状态,终端在该期间内不进行侧行数据的接收或测量。
又例如,唤醒状态即终端进入DRX On Duration状态,终端在On Duration期间内进行侧行数据的接收或测量;休眠状态即终端不进入DRX On Duration状态。
可选地,如果终端没有检测到侧行指示信息,则保持当前的状态。例如,如果终端检测到侧行指示信息,则进入DRX On Duration状态,否则不进入DRX On Duration状态。
可选地,该侧行指示信息称为唤醒信号(或休眠信号),通过该侧行指示信息指示终端唤醒或休眠。
可选地,终端接收到侧行指示信息,在T+Tproc时间后进入唤醒或休眠状态,其中,T是终端接收到侧行指示信息的时刻,例如,是承载侧行指示信息的第一个时域符号或最后一个时域符号对应的时刻;Tproc是终端处理时间,例如是终端进行序列检测的时间。可选地,终端在T+Tproc时间后的第一个时隙进入唤醒或休眠状态。例如,终端在时隙n接收到侧行指示信息,但是处理时间Tproc为3个时域符号,则终端在时隙n+1进入唤醒或休眠状态。为方便起见,以下示例假设Tproc=0。
示例1-1:该侧行指示信息通过序列承载,该侧行指示信息是第一序列时,终端进入唤醒状态;该侧行指示信息是第二序列时,终端进入休眠状态。
例如,如图7所示,配置承载侧行指示信息的序列的发送周期为4个时隙,即每4个时隙终端会进行序列检测。根据检测到的序列确定进入唤醒或休眠状态。由于只有两个状态,可以预配置两个序列分别对应这两个状态,当检测到第一序列时,进入唤醒状态;检测到第二状态时,进入休眠状态。
在图8中,承载侧行指示信息的序列的发送周期为4个时隙,即每4个时隙终端会进行序列检测。当在时隙0检测到第一序列时,终端进入唤醒状态,持续时长为6个时隙,即在时隙1至时隙6接收侧行数据或进行测量。在时隙4没有检测到序列,则保持当前状态,即唤醒状态。在时隙6之后唤醒时长结束,自动转入休眠状态。在时隙8检测到唤醒状态,持续时长2个时隙,即在时隙9、10进入唤醒状态。在时隙10之后自动转入休眠状态,在时隙12检测到第二序列,指示进入休眠状态,则继续保持休眠状态。
可选地,进入唤醒状态的时长T1以及进入休眠状态的时长T2是可配置的,或协议规定的。对于可配置的情况,该参数可以是预配置、网络配置或终端配置(例如是发送侧行指示信息序列的终端配置 的)。T1和T2可以是独立配置。
可选地,进入唤醒状态的时长T1和进入休眠状态的时长T2也是由序列确定的。
例如,对于同一根序列,可以通过不同的循环移位生成多个序列。例如,对于12点长的序列,可以根据循环移位生成12个不同的序列;对于24点长的序列,可以根据循环移位生成24点长的序列。对于12点长的序列,循环移位的取值范围是[0,11],当取值为[0,5]时表示进入唤醒状态;取值为[6,11]时表示进入休眠状态。并且不同的取值对应不同的时长T1和T2。循环移位的取值和时长之间的对应关系可以是预配置、网络配置或终端配置的,如下表1所示:
表1:循环移位值、唤醒/休眠状态、时长之间的对应关系示例
序列检测的终端使用不同的循环移位值对应的序列进行检测,从而判断是进入唤醒状态还是休眠状态,以及进行唤醒状态或休眠状态的时长。
需要说明的是,上表只是示意性的说明循环移位值和时长之间的对应关系,不构成具体限定。也可以配置不同的对应关系,例如,对于12点长的序列,只配置4个循环移位值对应的序列,即循环移位值0/3/6/9,其中0/3对应的序列指示进入唤醒状态,6/9对应的序列指示进入休眠状态,其对应的时长如下表2所示。
表2:循环移位值、唤醒/休眠状态、时长之间的对应关系示例:
可选地,可以定义循环移位对,如果支持的最大循环移位的个数为K,则循环移位值k和k+K/2为一个循环移位对,其中,k=0,1,…,K/2-1。小于K/2的循环移位值表示进入唤醒状态,大于等于K/2的循环移位值表示进入休眠状态。
在上面的示例中,终端在休眠状态中不检测物理侧行控制信道(Physical Sidelink Control CHannel,PSCCH)/物理侧行共享信道(Physical Sidelink Shared CHannel,PSSCH)。但是终端还是会检测承载侧行指示信息的序列,以判断是否需要进行状态变化。可选地,终端在休眠状态中不进行序列检测。如图9所示,承载侧行指示信息的序列的发送周期为4个时隙,即每4个时隙终端会进行序列检测,当在时隙0检测到第一序列时,终端进入唤醒状态,持续时长为2个时隙,即在时隙1至时隙2接收侧行数据或进行测量,在时隙3自动转入休眠状态。在时隙4检测到第二序列,指示进入休眠状态,并且持续时长6个时隙,则在时隙5至时隙10为休眠状态,并且在时隙8也不会进行序列检测,在时隙10之后会重新开始进行序列检测,当在时隙12检测到第一序列,指示进入唤醒状态,持续时长2个时隙,则在时隙13、时隙14进入唤醒状态,在时隙15自动进入休眠状态。
示例1-2:该侧行指示信息通过SCI承载。
可选地,该SCI是第一阶或第二阶SCI。
具体的,可以通过下面的方式承载:
示例1-2-1:通过SCI中的信息域承载:该信息域是第一值时,进入唤醒状态;该信息域是第二值时,进入休眠状态。
可选地,SCI还用于指示唤醒时长T1和休眠时长T2。
在SCI中包括信息域,该信息域用于指示一个索引值,根据该索引值与第一对应关系确定唤醒时长T1或休眠时长T2。例如,在SCI中1比特的第一信息域用于指示唤醒还是休眠,还包括3比特的第二信息域用于指示唤醒时长T1或休眠时长T2。当第一信息域指示唤醒时,第二信息域用于指示唤醒时长。当第一信息域指示休眠时,第二信息域指示休眠时长。3比特的取值与时长的对应关系可以是预配置、网络配置或终端配置的,示例可以参见表3。
表3
3比特索引值 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
T1或T2(时隙) | 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 |
示例1-2-2:通过SCI的扰码序列承载:
方式1:SCI的信息比特a
0,a
1,a
2,a
3,...,a
A-1经过附加CRC序列p
0,p
1,p
2,p
3,...,p
L-1后的序列为b
0,b
1,b
2,b
3,...,b
K-1,其中,
b
k=a
k;其中,k=0,1,2,...,A-1
b
k=p
k-A;其中,k=A,A+1,A+2,...,A+L-1,
在上述公式中,K=A+L,A表示SCI信息比特的长度,L=24表示CRC序列的长度。
用加扰序列x
0,x
1,...,x
B-1对b
0,b
1,b
2,b
3,...,b
K-1中的CRC序列对应的比特位进行加扰处理。如果B=L,即用加扰序列对b
0,b
1,b
2,b
3,...,b
K-1中的CRC序列对应的比特位进行加扰。如果B<L,用加扰序列对b
0,b
1,b
2,b
3,...,b
K-1中的CRC序列最后B个比特位进行加扰。以下以B=L=24为例:
c
k=b
k;其中,k=0,1,2,…,A-1;
c
k=(b
k+x
k)mod 2;其中,k=A,A+1,A+2,...,A+23。
通过序列承载侧行指示信息,可以参见表4中示例性的对应关系:
表4
x 0,x 1,...,x 23 | 状态 |
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 | 休眠 |
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 | 唤醒 |
可选地,上述扰码序列也可以用来承载唤醒时长T1或休眠时长T2,如下表5所示:
表5
方式2:经过信道编码后的SCI的比特序列d(0),…,d(M
bit-1)需要经过加扰码处理,扰码序列 c(0),…,c(M
bit-1)。
其中,扰码序列生成器的初始值c
init由第一初始值或第二初始值确定。当由第一初始值(如1)确定扰码序列时,表示进入唤醒状态。当由第二初始值(如0)确定扰码序列时,表示进行休眠状态。
可选地,进入唤醒状态的时长T1或进入休眠状态的时长T2可以根据扰码序列确定。当由第三初始值确定扰码序列时,表示进入唤醒状态的时长T1。当由第四初始值确定扰码序列时,表示进行休眠状态的时长T2。例如,扰码序列生成器的初始值c
init由数值集合确定,该集合中包括K个元素。当由元素索引1,2,…,K/2对应的数值确定c
init时,表示进入唤醒状态,并且不同的索引分别对应相应的时长T1。当由元素索引K/2+1,K/2+2,…,K对应的数值确定c
init时,表示进入休眠状态,并且不同的索引分别对应相应的时长T2。
示例1-2-3:通过SCI的格式(format)承载
NR-V2X中定义了多种SCI格式,例如,定义了两种第二阶SCI,即SCI format 2A和SCI format 2B,可以通过不同的SCI格式携带侧行指示信息,采用SCI format 2A时,指示进入唤醒状态。采用SCI format 2B时,指示进入休眠状态。
示例2:承载侧行指示信息的序列的结构
(1)时域
当侧行指示信息通过序列承载时,该序列可以是独立于其他侧行物理信道单独传输,该序列在时域上占据2个符号。如图10所示,该2个符号可以位于一个时隙中倒数第二个和倒数第三个侧行符号,承载该序列的之前一个符号(即倒数第四个侧行符号)为GP,用于与该时隙中的PSSCH信道之间的收发转换。
可选地,2个符号上发送的序列相同,其中第一个符号用作AGC。
可选地,该侧行指示信息的候选传输资源是周期性的,如果周期为P,即表示每P个时隙中包括一个可用于传输该侧行指示信息的时隙。
可选地,发送该序列的时隙也可用于传输PSFCH,或发送PSFCH的时隙也可用于发送该序列;即PSFCH和该序列位于相同的时隙,进一步的,位于相同的时域符号。
(2)频域
该侧行指示信息对应的序列在频域占据M个PRB,可选地,该M个PRB是连续的PRB。在频域的起始位置为mod(PRB_index,M)=0所对应的PRB_index,即,频域起始PRB索引为0,M,2M,以此类推;
(3)序列
承载侧行指示信息的序列可以表示为:
可选地,根序列可以根据预配置、网络配置的参数确定。循环移位值用于确定进入唤醒或休眠状态。进一步地,循环移位值用于确定唤醒时长T1或休眠时长T2。
可选地,根序列用于确定进入唤醒或休眠状态。
可选地,承载侧行指示信息的序列根据以下至少之一确定:源ID,目标ID,组ID。
可选地,该目标ID是终端在通信组内的组内ID。终端的组内ID可以根据高层配置信息获取。
其中,源ID例如是单播通信时发送该序列的终端的ID。在单播通信时,进行单播通信的两个UE都可以获知对端终端的ID信息,因此接收该序列的终端可以根据对端的ID确定源ID,并根据该ID信息检测相应的序列;
其中,目标ID例如是单播通信中接收该序列的终端所对应的ID。接收端终端根据自己的ID信息确定目标ID,并根据该ID信息检测相应的序列。例如,目标ID信息是组播通信中的组ID,进行组播通信的终端都可以获知该组ID,因此可以根据组ID信息确定目标ID,并根据该ID信息检测相应的序列。又例如,目标ID信息是广播通信中的业务类型所对应的ID,进行广播通信的终端根据感兴趣的业务类型或需要接收的业务类型确定该目标ID,并且根据该ID信息检测相应的序列。
可选地,源ID和目标ID是在SCI中携带的源ID和目标ID。
在第二阶SCI中会携带源ID和目标ID,该源ID或目标ID是根据高层ID信息确定的。例如,高层ID对应24比特,源ID为高层源ID截短的8比特,目标ID为高层目标ID截短的16比特。
示例3:配置承载侧行指示信息的序列的传输资源
承载侧行指示信息的序列的传输资源可以根据资源池配置信息确定,或根据侧行BWP配置信息确定,即该传输资源是每个资源池配置的,或每个侧行BWP配置的。
可选地,该传输资源可以是预配置或网络配置的。
用于确定承载侧行指示信息的序列的传输资源的参数至少包括以下之一:
第二指示信息:用于指示是否支持该功能,即是否支持通过侧行指示信息指示终端进入唤醒或休眠状态。
第三指示信息:指示在休眠状态中是否需要检测承载侧行指示信息的序列,该侧行指示信息用于指示终端进入唤醒状态或休眠状态。
时域资源指示信息:包括以下信息至少一种:
(1)周期P:即传输该侧行指示信息的时域周期;可选地,如果周期P=0,即表示不支持通过侧行指示信息指示终端进入唤醒或休眠状态的功能。
(2)时隙偏移量:用于确定在一个周期内传输该侧行指示信息所在的时隙。
频域资源指示信息:包括以下信息至少一种:
(1)序列对应的子信道(sub-channel)个数、PRB个数或序列长度:用于确定承载侧行指示信息的序列的长度;
(2)可用的频域资源:指示可用于传输该侧行指示信息的序列的频域资源集合;具体的,通过比特位图,或指示频域起始位置以及长度的方式指示。
码域资源指示信息:包括以下信息至少一种:
(1)根序列指示信息:用于确定生成根序列的参数;
(2)循环移位指示信息:用于确定循环移位值;
(3)循环移位对的个数:用于指示支持的循环移位对的个数。
唤醒时长T1:用于确定进入唤醒状态的时长。
休眠时长T2:用于确定进入休眠状态的时长。
循环移位值和唤醒时长的对应关系。
循环移位值和休眠时长的对应关系。
SCI中携带的用于指示时长的信息域的取值与唤醒时长的对应关系。
SCI中携带的用于指示时长的信息域的取值与休眠时长的对应关系。
示例4:接收侧行指示信息的第一时间范围
第一时间范围为用于接收该侧行指示信息的时间范围。实际应用中,该第一时间范围可以是终端根据配置信息或预定的时域位置、时长等信息确定的。
可选地,终端可以根据第一时域位置确定该第一时间范围的起始位置和/或该第一时间范围的结束位置。
可选地,第一时域位置可以根据侧行DRX的配置信息确定。该侧行DRX的配置信息可以是预配置的或网络配置的。
可选地,该侧行DRX的配置信息包括DRX持续定时器(DRX_onDurationTimer),该第一时域位置是根据该DRX持续定时器的启动、重置或生效时刻确定的。例如,第一时域位置可以包括DRX持续定时器启动、重置或生效所对应的时域位置,第一时域位置也可以基于DRX持续定时器启动、重置或生效所对应的时域位置和预定的时间间隔确定。
为了方便描述,以下将以第一时域位置包括DRX持续定时器启动、重启所对应的时域位置为例,说明利用第一时域位置确定第一时间范围的可选的实施方式。
在一种可选的实施方式中,终端根据第一时域位置确定该第一时间范围的起始位置,包括:
终端根据该第一时域位置和第一时间间隔确定该第一时间范围的起始位置;或者,
终端将该第一时域位置确定为该第一时间范围的起始位置。
如图11所示,终端可以根据第一时间间隔在DRX持续定时器启动、重启所对应的时域位置之前,确定第一时间范围的起始位置。可以理解,实际应用中,终端也可以根据第一时间间隔,在DRX持续定时器启动、重启所对应的时域位置之后,确定第一时间范围的起始位置。
如图12所示,终端可以将DRX持续定时器启动、重启所对应的时域位置确定为接收该侧行指示信息的第一时间范围的起始位置。
其中,该第一时间间隔可以是根据预配置信息确定的,或根据网络配置信息确定的,或根据其他终端的指示信息确定的,或该终端确定的。
进一步地,在终端根据第一时域位置确定该第一时间范围的起始位置的情况下,终端还可以根据第一时域位置确定该第一时间范围的结束位置,例如终端可以根据第一时域位置和第二时间间隔确定该第一时间范围的结束位置。或者,终端可以根据该第一时间范围的起始位置和第四时长确定该第一时间范围的结束位置。其中,第四时长可以是第一时间范围的时域长度。
可选地,该第四时长可以是预配置的或网络配置的,也可以是其他终端指示的或该终端自己确定的。
在另一种可选方式中,终端根据第一时域位置确定该第一时间范围的结束位置,包括:
该终端将该第一时域位置对应的时隙的前一个时隙确定为该第一时间范围的结束位置。
例如,终端可以将DRX持续定时器启动所对应的时域位置的前一个时隙确定为第一时间范围的结束位置。
进一步地,在终端根据第一时域位置确定该第一时间范围的结束位置的情况下,终端还可以根据第一时域位置确定该第一时间范围的起始位置,例如终端可以根据第一时域位置和第三时间间隔确定该第 一时间范围的起始位置。或者,终端可以根据该第一时间范围的结束位置和第五时长确定该第一时间范围的起始位置。其中,第五时长为第一时间范围的时域长度。
可选地,第五时长可以是预配置的或网络配置的,也可以是其他终端指示的或该终端自己确定的。
在本申请实施例中,通过序列或SCI承载侧行指示信息指示终端是否需要进入唤醒状态或休眠状态,可以使得终端在没有数据接收的时候能够转入休眠状态,降低终端能耗,从而达到节能的目的。
图13是根据本申请一实施例的终端400的示意性框图。该终端400可以包括:
接收单元410,用于终端接收侧行指示信息;
处理单元420,用于根据该侧行指示信息进入唤醒状态或休眠状态。
可选地,该唤醒状态表示该终端需要进行侧行链路数据接收或测量;该休眠状态表示终端不需要进行侧行链路数据接收或测量。
可选地,该侧行指示信息为唤醒信号,该唤醒信号用于指示该终端进入唤醒状态。
可选地,该侧行指示信息为休眠信号,该休眠信号用于指示该终端进入休眠状态。
可选地,该处理单元420还用于基于接收到该侧行指示信息的时刻,确定进入唤醒状态或休眠状态的时刻。
可选地,该终端接收到该侧行指示信息的时刻为承载该侧行指示信息的第一个时域符号或最后一个时域符号对应的时刻。
可选地,该处理单元420还用于基于该终端的处理时间确定第一时长。
可选地,该终端的处理时间基于该终端进行序列检测或侧行信道检测的时间确定。
可选地,该处理单元420还用于在接收到该侧行指示信息该第一时长后的第一个时隙进入唤醒状态或休眠状态。
可选地,该处理单元420还用于获取第一指示信息,根据该第一指示信息确定时间间隔、时隙个数或时隙偏移量。
可选地,该处理单元420还用于根据预配置信息、网络配置信息或其他终端发送的侧行数据获取该第一指示信息。
可选地,该处理单元420还用于根据该侧行指示信息所在的时隙以及该时隙个数或该时隙偏移量确定进入唤醒状态或休眠状态的时隙。
可选地,该侧行指示信息通过序列承载。
可选地,该处理单元420还用于:当该序列为第一序列时,进入唤醒状态;和/或,当该序列为第二序列时,进入休眠状态。
可选地,该处理单元420还用于:当该序列为第一序列时,确定进入唤醒状态的第二时长;和/或,当该序列为第二序列时,确定进入休眠状态的第三时长。
可选地,该第一序列对应第一循环移位值,和/或,该第二序列对应第二循环移位值。
可选地,该第一循环移位值与该唤醒状态具有第一对应关系;和/或,该第二循环移位值与该休眠状态具有第二对应关系。
可选地,该第一对应关系是预配置的、网络配置的或终端配置的;和/或,该第二对应关系是预配置的、网络配置的或终端配置的。
可选地,该处理单元420还用于:当该第一对应关系是预配置或网络配置时,获取资源池配置信息, 根据资源池配置信息确定该第一对应关系;和/或,当该第二对应关系是预配置或网络配置时,获取资源池配置信息,根据资源池配置信息确定该第二对应关系。
可选地,该处理单元420还用于:当该第一对应关系是终端配置时,获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据该SCI、PC5-RRC信令、MAC CE或MAC PDU确定该第一对应关系;和/或,当该第二对应关系是终端配置时,获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据该SCI、PC5-RRC信令、MAC CE或MAC PDU确定该第二对应关系。
可选地,该第一循环移位值与该唤醒状态的第二时长具有第三对应关系;和/或,该第二循环移位值与该休眠状态的第三时长具有第四对应关系。
可选地,该第三对应关系是预配置的、网络配置的或终端配置的;和/或,该第四对应关系是预配置的、网络配置的或终端配置的。
可选地,该处理单元420还用于:当该第三对应关系是预配置或网络配置时,获取资源池配置信息,根据资源池配置信息确定该第三对应关系;和/或,当该第四对应关系是预配置或网络配置时,获取资源池配置信息,根据资源池配置信息确定该第四对应关系。
可选地,该处理单元420还用于:当该第三对应关系是终端配置时,获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据该SCI、PC5-RRC信令、MAC CE或MAC PDU确定该第三对应关系;和/或,当该第四对应关系是终端配置时,获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据该SCI、PC5-RRC信令、MAC CE或MAC PDU确定该第四对应关系。
可选地,该第二时长是预配置的、网络配置的或终端配置的;和/或,该第三时长是预配置的、网络配置的或终端配置的。
可选地,该处理单元420还用于:当该第二时长是预配置或网络配置时,获取资源池配置信息,根据资源池配置信息确定该第二时长;和/或,当该第三时长是预配置或网络配置时,获取资源池配置信息,根据资源池配置信息确定该第三时长。
可选地,该处理单元420还用于:当该第二时长是终端配置时,获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据该SCI、PC5-RRC信令、MAC CE或MAC PDU确定该第二时长;和/或,当该第三时长是终端配置时,获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据该SCI、PC5-RRC信令、MAC CE或MAC PDU确定该第三时长。
可选地,该终端在该休眠状态不进行序列检测。
可选地,该终端在该休眠状态不检测SCI。
可选地,该侧行指示信息对应的序列独立于其他侧行物理信道单独传输。
可选地,该侧行指示信息对应的序列在时域上占据2个符号,位于一个时隙中倒数第二个和倒数第三个侧行符号。
可选地,该侧行指示信息对应的序列在时域上占据的2个符号上发送的序列相同。
可选地,承载该侧行指示信息对应的序列的第一个符号之前一个符号为保护间隔GP符号,和/或,承载该侧行指示信息对应的序列的最后一个符号之后一个符号为GP符号。
可选地,该序列的候选传输资源是周期性的。
可选地,当资源池中配置了物理侧行反馈信道PSFCH传输资源和该序列的传输资源时,用于传输该PSFCH的时隙同时用于传输该序列,或者,用于传输该序列的时隙同时用于传输该PSFCH。
可选地,该序列在频域占据M个物理资源块PRB,M是大于或等于1的整数。
可选地,该M个PRB是连续的PRB,该M个PRB在频域的起始位置基于该PRB的索引对M进行取模运算得到的。
可选地,该序列是基于根序列、循环移位值和序列长度生成的。
可选地,基于该根序列对应的组号确定进入唤醒状态或休眠状态。
可选地,该序列是根据以下至少之一确定的:源ID,目标ID,组ID。
可选地,该序列的传输资源是根据以下至少之一确定的:源ID,目标ID,组ID。
可选地,该源ID包括发送该序列的终端的ID。
可选地,该目标ID包括以下至少之一:
单播通信中接收该序列的终端的ID;
组播通信中的组ID;
广播通信中的业务类型对应的ID。
可选地,该源ID是在SCI中携带的源ID,该目标ID是在SCI中携带的目标ID。
可选地,该组ID包括组播通信中的组ID。
可选地,该终端还包括:
获取配置信息,该配置信息用于配置该序列的传输资源集合;
根据该配置信息确定该序列的传输资源。
可选地,该配置信息是资源池配置信息或带宽部分BWP配置信息。
可选地,该配置信息是预配置或网络配置的。
可选地,该配置信息包括以下参数至少之一:
第二指示信息,用于指示是否支持通过该侧行指示信息指示终端进入唤醒状态或休眠状态;
第三指示信息,用于指示在休眠状态中是否需要检测该侧行指示信息;
时域资源指示信息,用于指示承载该侧行指示信息的序列的时域资源;
频域资源指示信息,用于指示承载该侧行指示信息的序列的频域资源;
码域资源指示信息,用于指示承载该侧行指示信息的序列的码域资源;
唤醒时长指示信息;
休眠时长指示信息。
可选地,该时域资源指示信息包括以下至少之一:
周期信息,用于指示传输该侧行指示信息的时域周期。
时可选地,隙偏移量,用于确定在一个周期内传输该侧行指示信息所在的时隙。
可选地,该时域周期为零,表示不支持通过侧行指示信息指示终端进入唤醒状态或休眠状态的功能。
可选地,该频域资源指示信息包括以下至少之一:
承载该侧行指示信息的序列对应的子信道个数、PRB个数或序列长度,用于确定承载该侧行指示信息的序列的长度;
频域资源集合指示信息,用于指示可用于承载该侧行指示信息的序列的频域资源集合。
可选地,该码域资源指示信息包括以下至少之一:
根序列指示信息,用于确定生成根序列的参数;
循环移位指示信息,用于确定循环移位值;
循环移位对的个数,用于指示支持的循环移位对的个数;
可选地,该唤醒时长指示信息包括以下至少之一:
第二时长,用于确定进入唤醒状态的时长;
循环移位值和唤醒时长的对应关系;
SCI中携带的用于指示时长的信息域的取值与唤醒时长的对应关系。
可选地,该休眠时长指示信息包括以下至少之一:
第三时长,用于确定进入休眠状态的时长;
循环移位值和休眠时长的对应关系;
SCI中携带的用于指示时长的信息域的取值与休眠时长的对应关系。
可选地,该侧行指示信息通过侧行链路控制信息SCI承载。
可选地,该SCI是第一阶SCI或第二阶SCI。
可选地,该侧行指示信息通过SCI中的信息域承载。
可选地,该侧行指示信息通过SCI中的信息域承载的方式包括以下至少之一:
该信息域为第一值用于指示该终端进入唤醒状态;
该信息域为第二值用于指示该终端进入休眠状态。
可选地,该侧行指示信息通过SCI中的信息域承载的方式包括以下至少之一:
该SCI中的第一信息域用于指示唤醒状态或休眠状态;
该SCI中的第二信息域用于指示唤醒状态的第二时长或休眠状态的第三时长。
可选地,该侧行指示信息通过SCI的格式承载。
可选地,第一SCI格式对应唤醒状态,和/或,第二SCI格式对应休眠状态。
可选地,该侧行指示信息通过SCI的扰码序列承载。
可选地,该扰码序列用于对第一比特序列进行加扰,其中,该第一比特序列是根据该SCI的信息比特经过附加CRC序列生成的序列。
可选地,该扰码序列用于对第二比特序列进行加扰,其中,该第二比特序列是该SCI的信息比特经过信道编码处理后的比特序列。
可选地,该扰码序列用于指示唤醒状态的第二时长和/或休眠状态的第三时长。
可选地,该扰码序列的指示方式包括以下至少之一:
当该扰码序列由第一初始值生成时,该扰码序列用于指示进入唤醒状态;
当该扰码序列由第二初始值生成时,该扰码序列用于指示进入休眠状态;
当该扰码序列由第三初始值生成时,该扰码序列用于指示进入唤醒状态的第二时长;
当该扰码序列由第四初始值生成时,该扰码序列用于指示进入休眠状态的第三时长。
可选地,该接收单元410具体用于:
在第一时间范围内接收该侧行指示信息。
可选地,该处理单元420还用于:
根据第一时域位置确定该第一时间范围的起始位置和/或该第一时间范围的结束位置。
可选地,该处理单元420还用于:
获取侧行非连续接收DRX的配置信息;
根据该侧行DRX的配置信息确定该第一时域位置。
可选地,该侧行DRX的配置信息包括DRX持续定时器,该第一时域位置是根据该DRX持续定时器的启动、重置或生效时刻确定的。
可选地,该处理单元420还用于:
根据该第一时域位置和第一时间间隔确定该第一时间范围的起始位置;或者,
将该第一时域位置确定为该第一时间范围的起始位置。
可选地,该第一时间间隔是根据预配置信息确定的,或根据网络配置信息确定的,或根据其他终端的指示信息确定的,或该终端确定的。
可选地,该处理单元还用于:
根据该第一时间范围的起始位置和第四时长确定该第一时间范围的结束位置。
可选地,该第四时长是根据预配置信息确定的,或根据网络配置信息确定的,或根据其他终端的指示信息确定的,或该终端确定的。
可选地,该处理单元420还用于:
将该第一时域位置对应的时隙的前一个时隙确定为该第一时间范围的结束位置。
可选地,该处理单元420还用于:
根据该第一时间范围的结束位置和第五时长确定该第一时间范围的起始位置。
可选地,该第五时长是根据预配置信息确定的,或根据网络配置信息确定的,或根据其他终端的指示信息确定的,或该终端确定的。
本申请实施例的终端400能够实现前述的方法实施例中的终端的对应功能。该终端400中的各个模块(子模块、单元或组件等)对应的流程、功能、实现方式以及有益效果,可参见上述方法实施例中的对应描述,在此不再赘述。需要说明,关于申请实施例的终端400中的各个模块(子模块、单元或组件等)所描述的功能,可以由不同的模块(子模块、单元或组件等)实现,也可以由同一个模块(子模块、单元或组件等)实现。
图14是根据本申请实施例的通信设备600示意性结构图。该通信设备600包括处理器610,处理器610可以从存储器中调用并运行计算机程序,以使通信设备600实现本申请实施例中的方法。
可选地,通信设备600还可以包括存储器620。其中,处理器610可以从存储器620中调用并运行计算机程序,以使通信设备600实现本申请实施例中的方法。
其中,存储器620可以是独立于处理器610的一个单独的器件,也可以集成在处理器610中。
可选地,通信设备600还可以包括收发器630,处理器610可以控制该收发器630与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。
其中,收发器630可以包括发射机和接收机。收发器630还可以进一步包括天线,天线的数量可以为一个或多个。
可选地,该通信设备600可为本申请实施例的终端设备,并且该通信设备600可以实现本申请实施例的各个方法中由终端设备实现的相应流程,为了简洁,在此不再赘述。
图15是根据本申请实施例的芯片700的示意性结构图。该芯片700包括处理器710,处理器710可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,芯片700还可以包括存储器720。其中,处理器710可以从存储器720中调用并运行计算机程序,以实现本申请实施例中由终端设备或者网络设备执行的方法。
其中,存储器720可以是独立于处理器710的一个单独的器件,也可以集成在处理器710中。
可选地,该芯片700还可以包括输入接口730。其中,处理器710可以控制该输入接口730与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。
可选地,该芯片700还可以包括输出接口740。其中,处理器710可以控制该输出接口740与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。
可选地,该芯片可应用于本申请实施例中的网络设备,并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该芯片可应用于本申请实施例中的终端设备,并且该芯片可以实现本申请实施例的各个方法中由终端设备实现的相应流程,为了简洁,在此不再赘述。
应用于网络设备和终端设备的芯片可以是相同的芯片或不同的芯片。
应理解,本申请实施例提到的芯片还可以称为***级芯片,***芯片,芯片***或片上***芯片等。
上述提及的处理器可以是通用处理器、数字信号处理器(digital signal processor,DSP)、现成可编程门阵列(field programmable gate array,FPGA)、专用集成电路(application specific integrated circuit,ASIC)或者其他可编程逻辑器件、晶体管逻辑器件、分立硬件组件等。其中,上述提到的通用处理器可以是微处理器或者也可以是任何常规的处理器等。
上述提及的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM,EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM)。
应理解,上述存储器为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)等等。也就是说,本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
图16是根据本申请实施例的通信***800的示意性框图。该通信***800包括第一终端810和第二终端820。
第一终端810,用于接收侧行指示信息;根据该侧行指示信息进入唤醒状态或休眠状态。具体地,第一终端810可以从第二终端820接收该侧行指示信息。其中,该第一终端810可以用于实现上述方法中由作为接收端的终端实现的相应的功能,以及该第二终端820可以用于实现上述方法中由作为接收端的终端实现的相应的功能。为了简洁,在此不再赘述。
在上述实施例中,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。该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该计算机程序指令时,全部或部分地产生按照本申请实施例中的流程或功能。该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。该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,该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。该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。该可用介质可以是磁性介质,(例如,软盘、硬盘、磁带)、光介质(例如,DVD)、或者半导体介质(例如固态硬盘(Solid State Disk,SSD))等。
应理解,在本申请的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本申请实施例的实施过程构成任何限定。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的***、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
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该权利要求的保护范围为准。
Claims (161)
- 一种侧行链路的传输方法,包括:终端接收侧行指示信息;所述终端根据所述侧行指示信息进入唤醒状态或休眠状态。
- 根据权利要求1所述的方法,其中,所述唤醒状态表示所述终端需要进行侧行链路数据接收或测量;所述休眠状态表示终端不需要进行侧行链路数据接收或测量。
- 根据权利要求1或2所述的方法,其中,所述侧行指示信息为唤醒信号,所述唤醒信号用于指示所述终端进入唤醒状态。
- 根据权利要求1至3中任一项所述的方法,其中,所述侧行指示信息为休眠信号,所述休眠信号用于指示所述终端进入休眠状态。
- 根据权利要求1至4中任一项所述的方法,其中,所述终端根据所述侧行指示信息进入唤醒状态或休眠状态,包括:所述终端基于接收到所述侧行指示信息的时刻,确定进入唤醒状态或休眠状态的时刻。
- 根据权利要求5所述的方法,其中,所述终端接收到所述侧行指示信息的时刻为承载所述侧行指示信息的第一个时域符号或最后一个时域符号对应的时刻。
- 根据权利要求5或6所述的方法,其中,所述方法还包括:基于所述终端的处理时间确定第一时长。
- 根据权利要求7所述的方法,其中,所述终端的处理时间基于所述终端进行序列检测或侧行信道检测的时间确定。
- 根据权利要求7或8所述的方法,其中,所述终端基于接收到所述侧行指示信息的时刻,确定进入唤醒状态或休眠状态的时刻,包括:所述终端在接收到所述侧行指示信息所述第一时长后的第一个时隙进入唤醒状态或休眠状态。
- 根据权利要求5或6所述的方法,其中,所述方法还包括:所述终端获取第一指示信息,根据所述第一指示信息确定时间间隔、时隙个数或时隙偏移量。
- 根据权利要求10所述的方法,其中,所述方法还包括:所述终端根据预配置信息、网络配置信息或其他终端发送的侧行数据获取所述第一指示信息。
- 根据权利要求10或11中任一项所述的方法,其中,所述终端基于接收到所述侧行指示信息的时刻,确定进入唤醒状态或休眠状态的时刻,包括:所述终端根据所述侧行指示信息所在的时隙以及所述时隙个数或所述时隙偏移量确定进入唤醒状态或休眠状态的时隙。
- 根据权利要求1至12中任一项所述的方法,其中,所述侧行指示信息通过序列承载。
- 根据权利要求13所述的方法,其中,所述方法还包括:当所述序列为第一序列时,所述终端进入唤醒状态;和/或,当所述序列为第二序列时,所述终端进入休眠状态。
- 根据权利要求14所述的方法,其中,所述方法还包括:当所述序列为第一序列时,所述终端确定进入唤醒状态的第二时长;和/或,当所述序列为第二序列时,所述终端确定进入休眠状态的第三时长。
- 根据权利要求14或15所述的方法,其中,所述第一序列对应第一循环移位值,和/或,所述第二序列对应第二循环移位值。
- 根据权利要求16所述的方法,其中,所述第一循环移位值与所述唤醒状态具有第一对应关系;和/或,所述第二循环移位值与所述休眠状态具有第二对应关系。
- 根据权利要求17所述的方法,其中,所述第一对应关系是预配置的、网络配置的或终端配置的;和/或,所述第二对应关系是预配置的、网络配置的或终端配置的。
- 根据权利要求18所述的方法,其中,所述方法还包括:当所述第一对应关系是预配置或网络配置时,所述终端获取资源池配置信息,根据资源池配置信息确定所述第一对应关系;和/或,当所述第二对应关系是预配置或网络配置时,所述终端获取资源池配置信息,根据资源池配置信息确定所述第二对应关系。
- 根据权利要求18所述的方法,其中,所述方法还包括:当所述第一对应关系是终端配置时,所述终端获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据所述SCI、PC5-RRC信令、MAC CE或MAC PDU确定所述第一对应关系;和/或,当所述第二对应关系是终端配置时,所述终端获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据所述SCI、PC5-RRC信令、MAC CE或MAC PDU确定所述第二对应关系。
- 根据权利要求16所述的方法,其中,所述第一循环移位值与所述唤醒状态的第二时长具有第三对应关系;和/或,所述第二循环移位值与所述休眠状态的第三时长具有第四对应关系。
- 根据权利要求21所述的方法,其中,所述第三对应关系是预配置的、网络配置的或终端配置的;和/或,所述第四对应关系是预配置的、网络配置的或终端配置的。
- 根据权利要求22所述的方法,其中,所述方法还包括:当所述第三对应关系是预配置或网络配置时,所述终端获取资源池配置信息,根据资源池配置信息确定所述第三对应关系;和/或,当所述第四对应关系是预配置或网络配置时,所述终端获取资源池配置信息,根据资源池配置信息确定所述第四对应关系。
- 根据权利要求22所述的方法,其中,所述方法还包括:当所述第三对应关系是终端配置时,所述终端获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据所述SCI、PC5-RRC信令、MAC CE或MAC PDU确定所述第三对应关系;和/或,当所述第四对应关系是终端配置时,所述终端获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据所述SCI、PC5-RRC信令、MAC CE或MAC PDU确定所述第四对应关系。
- 根据权利要求15所述的方法,其中,所述第二时长是预配置的、网络配置的或终端配置的;和/或,所述第三时长是预配置的、网络配置的或终端配置的。
- 根据权利要求25所述的方法,其中,所述方法还包括:当所述第二时长是预配置或网络配置时,所述终端获取资源池配置信息,根据资源池配置信息确定所述第二时长;和/或,当所述第三时长是预配置或网络配置时,所述终端获取资源池配置信息,根据资源池配置信息确定 所述第三时长。
- 根据权利要求25所述的方法,其中,所述方法还包括:当所述第二时长是终端配置时,所述终端获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据所述SCI、PC5-RRC信令、MAC CE或MAC PDU确定所述第二时长;和/或,当所述第三时长是终端配置时,所述终端获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据所述SCI、PC5-RRC信令、MAC CE或MAC PDU确定所述第三时长。
- 根据权利要求13至27中任一项所述的方法,其中,所述终端在所述休眠状态不进行序列检测。
- 根据权利要求13至27中任一项所述的方法,其中,所述终端在所述休眠状态不检测SCI。
- 根据权利要求13至29中任一项所述的方法,其中,所述侧行指示信息对应的序列独立于其他侧行物理信道单独传输。
- 根据权利要求13至30中任一项所述的方法,其中,所述侧行指示信息对应的序列在时域上占据2个符号,位于一个时隙中倒数第二个和倒数第三个侧行符号。
- 根据权利要求30至31中任一项所述的方法,其中,所述侧行指示信息对应的序列在时域上占据的2个符号上发送的序列相同。
- 根据权利要求31或32所述的方法,其中,承载所述侧行指示信息对应的序列的第一个符号之前一个符号为保护间隔GP符号,和/或,承载所述侧行指示信息对应的序列的最后一个符号之后一个符号为GP符号。
- 根据权利要求13至33中任一项所述的方法,其中,所述序列的候选传输资源是周期性的。
- 根据权利要求13至34中任一项所述的方法,其中,当资源池中配置了物理侧行反馈信道PSFCH传输资源和所述序列的传输资源时,用于传输所述PSFCH的时隙同时用于传输所述序列,或者,用于传输所述序列的时隙同时用于传输所述PSFCH。
- 根据权利要求13至35中任一项所述的方法,其中,所述序列在频域占据M个物理资源块PRB,M是大于或等于1的整数。
- 根据权利要求36所述的方法,其中,所述M个PRB是连续的PRB,所述M个PRB在频域的起始位置基于所述PRB的索引对M进行取模运算得到的。
- 根据权利要求13至37中任一项所述的方法,其中,所述序列是基于根序列、循环移位值和序列长度生成的。
- 根据权利要求38所述的方法,其中,基于所述根序列对应的组号确定进入唤醒状态或休眠状态。
- 根据权利要求13至39中任一项所述的方法,其中,所述序列是根据以下至少之一确定的:源标识ID,目标ID,组ID。
- 根据权利要求13至40中任一项所述的方法,其中,所述序列的传输资源是根据以下至少之一确定的:源ID,目标ID,组ID。
- 根据权利要求40或41所述的方法,其中,所述源ID包括发送所述序列的终端的ID。
- 根据权利要求41或42所述的方法,其中,所述目标ID包括以下至少之一:单播通信中接收所述序列的终端的ID;组播通信中的组ID;广播通信中的业务类型对应的ID。
- 根据权利要求41或42所述的方法,其中,所述源ID是在SCI中携带的源ID,所述目标ID是在SCI中携带的目标ID。
- 根据权利要求41或42所述的方法,其中,所述组ID包括组播通信中的组ID。
- 根据权利要求13至45所述的方法,其中,所述方法还包括:获取配置信息,所述配置信息用于配置所述序列的传输资源集合;根据所述配置信息确定所述序列的传输资源。
- 根据权利要求46所述的方法,其中,所述配置信息是资源池配置信息或带宽部分BWP配置信息。
- 根据权利要求46或47所述的方法,其中,所述配置信息是预配置或网络配置的。
- 根据权利要求46至48中任一项所述的方法,其中,所述配置信息包括以下参数至少之一:第二指示信息,用于指示是否支持通过所述侧行指示信息指示终端进入唤醒状态或休眠状态;第三指示信息,用于指示在休眠状态中是否需要检测所述侧行指示信息;时域资源指示信息,用于指示承载所述侧行指示信息的序列的时域资源;频域资源指示信息,用于指示承载所述侧行指示信息的序列的频域资源;码域资源指示信息,用于指示承载所述侧行指示信息的序列的码域资源;唤醒时长指示信息;休眠时长指示信息。
- 根据权利要求49所述的方法,其中,所述时域资源指示信息包括以下至少之一:周期信息,用于指示传输所述侧行指示信息的时域周期;时隙偏移量,用于确定在一个周期内传输所述侧行指示信息所在的时隙。
- 根据权利要求50所述的方法,其中,所述时域周期为零,表示不支持通过所述侧行指示信息指示终端进入唤醒状态或休眠状态的功能。
- 根据权利要求49所述的方法,其中,所述频域资源指示信息包括以下至少之一:承载所述侧行指示信息的序列对应的子信道个数、PRB个数或序列长度,用于确定承载所述侧行指示信息的序列的长度;频域资源集合指示信息,用于指示可用于承载所述侧行指示信息的序列的频域资源集合。
- 根据权利要求49所述的方法,其中,所述码域资源指示信息包括以下至少之一:根序列指示信息,用于确定生成根序列的参数;循环移位指示信息,用于确定循环移位值;循环移位对的个数,用于指示支持的循环移位对的个数。
- 根据权利要求49所述的方法,其中,所述唤醒时长指示信息包括以下至少之一:第二时长,用于确定进入唤醒状态的时长;循环移位值和唤醒时长的对应关系;SCI中携带的用于指示时长的信息域的取值与唤醒时长的对应关系。
- 根据权利要求49所述的方法,其中,所述休眠时长指示信息包括以下至少之一:第三时长,用于确定进入休眠状态的时长;循环移位值和休眠时长的对应关系;SCI中携带的用于指示时长的信息域的取值与休眠时长的对应关系。
- 根据权利要求1至12中任一项所述的方法,其中,所述侧行指示信息通过侧行链路控制信息SCI承载。
- 根据权利要求56所述的方法,其中,所述SCI是第一阶SCI或第二阶SCI。
- 根据权利要求56或57所述的方法,其中,所述侧行指示信息通过SCI中的信息域承载。
- 根据权利要求58所述的方法,其中,所述侧行指示信息通过SCI中的信息域承载的方式包括以下至少之一:所述信息域为第一值用于指示所述终端进入唤醒状态;所述信息域为第二值用于指示所述终端进入休眠状态。
- 根据权利要求58或59所述的方法,其中,所述侧行指示信息通过SCI中的信息域承载的方式包括以下至少之一:所述SCI中的第一信息域用于指示唤醒状态或休眠状态;所述SCI中的第二信息域用于指示唤醒状态的第二时长或休眠状态的第三时长。
- 根据权利要求1至12中任一项所述的方法,其中,所述侧行指示信息通过SCI的格式承载。
- 根据权利要求61所述的方法,其中,第一SCI格式对应唤醒状态,和/或,第二SCI格式对应休眠状态。
- 根据权利要求1至12中任一项所述的方法,其中,所述侧行指示信息通过SCI的扰码序列承载。
- 根据权利要求63所述的方法,其中,所述扰码序列用于对第一比特序列进行加扰,其中,所述第一比特序列是根据所述SCI的信息比特经过附加CRC序列生成的序列。
- 根据权利要求63所述的方法,其中,所述扰码序列用于对第二比特序列进行加扰,其中,所述第二比特序列是所述SCI的信息比特经过信道编码处理后的比特序列。
- 根据权利要求63至65中任一项所述的方法,其中,所述扰码序列用于指示唤醒状态的第二时长和/或休眠状态的第三时长。
- 根据权利要求66所述的方法,其中,所述扰码序列的指示方式包括以下至少之一:当所述扰码序列由第一初始值生成时,所述扰码序列用于指示进入唤醒状态;当所述扰码序列由第二初始值生成时,所述扰码序列用于指示进入休眠状态;当所述扰码序列由第三初始值生成时,所述扰码序列用于指示进入唤醒状态的第二时长;当所述扰码序列由第四初始值生成时,所述扰码序列用于指示进入休眠状态的第三时长。
- 根据权利要求1至67中任一项所述的方法,其中,所述终端接收侧行指示信息,包括:所述终端在第一时间范围内接收所述侧行指示信息。
- 根据权利要求68所述的方法,其中,所述方法还包括:所述终端根据第一时域位置确定所述第一时间范围的起始位置和/或所述第一时间范围的结束位置。
- 根据权利要求69所述的方法,其中,所述方法还包括:所述终端获取侧行非连续接收DRX的配置信息;所述终端根据所述侧行DRX的配置信息确定所述第一时域位置。
- 根据权利要求70所述的方法,其中,所述侧行DRX的配置信息包括DRX持续定时器,所述第一时域位置是根据所述DRX持续定时器的启动、重置或生效时刻确定的。
- 根据权利要求69至71中任一项所述的方法,其中,所述终端根据第一时域位置确定所述第一时间范围的起始位置,包括:所述终端根据所述第一时域位置和第一时间间隔确定所述第一时间范围的起始位置;或者,所述终端将所述第一时域位置确定为所述第一时间范围的起始位置。
- 根据权利要求72所述的方法,其中,所述第一时间间隔是根据预配置信息确定的,或根据网络配置信息确定的,或根据其他终端的指示信息确定的,或所述终端确定的。
- 根据权利要求69至73中任一项所述的方法,其中,所述方法还包括:所述终端根据所述第一时间范围的起始位置和第四时长确定所述第一时间范围的结束位置。
- 根据权利要求74所述的方法,其中,所述第四时长是根据预配置信息确定的,或根据网络配置信息确定的,或根据其他终端的指示信息确定的,或所述终端确定的。
- 根据权利要求69至71中任一项所述的方法,其中,所述终端根据第一时域位置确定所述第一时间范围的结束位置,包括:所述终端将所述第一时域位置对应的时隙的前一个时隙确定为所述第一时间范围的结束位置。
- 根据权利要求76所述的方法,其中,所述方法还包括:所述终端根据所述第一时间范围的结束位置和第五时长确定所述第一时间范围的起始位置。
- 根据权利要求77所述的方法,其中,所述第五时长是根据预配置信息确定的,或根据网络配置信息确定的,或根据其他终端的指示信息确定的,或所述终端确定的。
- 一种终端,包括:接收单元,用于终端接收侧行指示信息;处理单元,用于根据所述侧行指示信息进入唤醒状态或休眠状态。
- 根据权利要求79所述的终端,其中,所述唤醒状态表示所述终端需要进行侧行链路数据接收或测量;所述休眠状态表示终端不需要进行侧行链路数据接收或测量。
- 根据权利要求79或80所述的终端,其中,所述侧行指示信息为唤醒信号,所述唤醒信号用于指示所述终端进入唤醒状态。
- 根据权利要求79至81中任一项所述的终端,其中,所述侧行指示信息为休眠信号,所述休眠信号用于指示所述终端进入休眠状态。
- 根据权利要求79至82中任一项所述的终端,其中,所述处理单元还用于基于接收到所述侧行指示信息的时刻,确定进入唤醒状态或休眠状态的时刻。
- 根据权利要求83所述的终端,其中,所述终端接收到所述侧行指示信息的时刻为承载所述侧行指示信息的第一个时域符号或最后一个时域符号对应的时刻。
- 根据权利要求83或84所述的终端,其中,所述处理单元还用于基于所述终端的处理时间确定第一时长。
- 根据权利要求85所述的终端,其中,所述终端的处理时间基于所述终端进行序列检测或侧行信道检测的时间确定。
- 根据权利要求85或86所述的终端,其中,所述处理单元还用于在接收到所述侧行指示信息所述第一时长后的第一个时隙进入唤醒状态或休眠状态。
- 根据权利要求83或84所述的终端,其中,所述处理单元还用于获取第一指示信息,根据所述第一指示信息确定时间间隔、时隙个数或时隙偏移量。
- 根据权利要求88所述的终端,其中,所述处理单元还用于根据预配置信息、网络配置信息或其他终端发送的侧行数据获取所述第一指示信息。
- 根据权利要求88或89中任一项所述的终端,其中,所述处理单元还用于根据所述侧行指示信息所在的时隙以及所述时隙个数或所述时隙偏移量确定进入唤醒状态或休眠状态的时隙。
- 根据权利要求79至90中任一项所述的终端,其中,所述侧行指示信息通过序列承载。
- 根据权利要求91所述的终端,其中,所述处理单元还用于:当所述序列为第一序列时,进入唤醒状态;和/或,当所述序列为第二序列时,进入休眠状态。
- 根据权利要求92所述的终端,其中,所述处理单元还用于:当所述序列为第一序列时,确定进入唤醒状态的第二时长;和/或,当所述序列为第二序列时,确定进入休眠状态的第三时长。
- 根据权利要求92或93所述的终端,其中,所述第一序列对应第一循环移位值,和/或,所述第二序列对应第二循环移位值。
- 根据权利要求94所述的终端,其中,所述第一循环移位值与所述唤醒状态具有第一对应关系;和/或,所述第二循环移位值与所述休眠状态具有第二对应关系。
- 根据权利要求95所述的终端,其中,所述第一对应关系是预配置的、网络配置的或终端配置的;和/或,所述第二对应关系是预配置的、网络配置的或终端配置的。
- 根据权利要求96所述的终端,其中,所述处理单元还用于:当所述第一对应关系是预配置或网络配置时,获取资源池配置信息,根据资源池配置信息确定所述第一对应关系;和/或,当所述第二对应关系是预配置或网络配置时,获取资源池配置信息,根据资源池配置信息确定所述第二对应关系。
- 根据权利要求96所述的终端,其中,所述处理单元还用于:当所述第一对应关系是终端配置时,获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据所述SCI、PC5-RRC信令、MAC CE或MAC PDU确定所述第一对应关系;和/或,当所述第二对应关系是终端配置时,获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据所述SCI、PC5-RRC信令、MAC CE或MAC PDU确定所述第二对应关系。
- 根据权利要求94所述的终端,其中,所述第一循环移位值与所述唤醒状态的第二时长具有第三对应关系;和/或,所述第二循环移位值与所述休眠状态的第三时长具有第四对应关系。
- 根据权利要求99所述的终端,其中,所述第三对应关系是预配置的、网络配置的或终端配置的;和/或,所述第四对应关系是预配置的、网络配置的或终端配置的。
- 根据权利要求100所述的终端,其中,所述处理单元还用于:当所述第三对应关系是预配置或网络配置时,获取资源池配置信息,根据资源池配置信息确定所述第三对应关系;和/或,当所述第四对应关系是预配置或网络配置时,获取资源池配置信息,根据资源池配置信息确定所述 第四对应关系。
- 根据权利要求100所述的终端,其中,所述处理单元还用于:当所述第三对应关系是终端配置时,获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据所述SCI、PC5-RRC信令、MAC CE或MAC PDU确定所述第三对应关系;和/或,当所述第四对应关系是终端配置时,获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据所述SCI、PC5-RRC信令、MAC CE或MAC PDU确定所述第四对应关系。
- 根据权利要求93所述的终端,其中,所述第二时长是预配置的、网络配置的或终端配置的;和/或,所述第三时长是预配置的、网络配置的或终端配置的。
- 根据权利要求103所述的终端,其中,所述处理单元还用于:当所述第二时长是预配置或网络配置时,获取资源池配置信息,根据资源池配置信息确定所述第二时长;和/或,当所述第三时长是预配置或网络配置时,获取资源池配置信息,根据资源池配置信息确定所述第三时长。
- 根据权利要求103所述的终端,其中,所述处理单元还用于:当所述第二时长是终端配置时,获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据所述SCI、PC5-RRC信令、MAC CE或MAC PDU确定所述第二时长;和/或,当所述第三时长是终端配置时,获取SCI、PC5-RRC信令、MAC CE或MAC PDU,根据所述SCI、PC5-RRC信令、MAC CE或MAC PDU确定所述第三时长。
- 根据权利要求91至105中任一项所述的终端,其中,所述终端在所述休眠状态不进行序列检测。
- 根据权利要求91至105中任一项所述的终端,其中,所述终端在所述休眠状态不检测SCI。
- 根据权利要求91至107中任一项所述的终端,其中,所述侧行指示信息对应的序列独立于其他侧行物理信道单独传输。
- 根据权利要求91至107中任一项所述的终端,其中,所述侧行指示信息对应的序列在时域上占据2个符号,位于一个时隙中倒数第二个和倒数第三个侧行符号。
- 根据权利要求108或109所述的终端,其中,所述侧行指示信息对应的序列在时域上占据的2个符号上发送的序列相同。
- 根据权利要求109或110所述的终端,其中,承载所述侧行指示信息对应的序列的第一个符号之前一个符号为保护间隔GP符号,和/或,承载所述侧行指示信息对应的序列的最后一个符号之后一个符号为GP符号。
- 根据权利要求91至111中任一项所述的终端,其中,所述序列的候选传输资源是周期性的。
- 根据权利要求91至112中任一项所述的终端,其中,当资源池中配置了物理侧行反馈信道PSFCH传输资源和所述序列的传输资源时,用于传输所述PSFCH的时隙同时用于传输所述序列,或者,用于传输所述序列的时隙同时用于传输所述PSFCH。
- 根据权利要求91至113中任一项所述的终端,其中,所述序列在频域占据M个物理资源块PRB,M是大于或等于1的整数。
- 根据权利要求114所述的终端,其中,所述M个PRB是连续的PRB,所述M个PRB在频域 的起始位置基于所述PRB的索引对M进行取模运算得到的。
- 根据权利要求91至115中任一项所述的终端,其中,所述序列是基于根序列、循环移位值和序列长度生成的。
- 根据权利要求116所述的终端,其中,基于所述根序列对应的组号确定进入唤醒状态或休眠状态。
- 根据权利要求91至117中任一项所述的终端,其中,所述序列是根据以下至少之一确定的:源标识ID,目标ID,组ID。
- 根据权利要求91至118中任一项所述的终端,其中,所述序列的传输资源是根据以下至少之一确定的:源ID,目标ID,组ID。
- 根据权利要求118或119所述的终端,其中,所述源ID包括发送所述序列的终端的ID。
- 根据权利要求118或119所述的终端,其中,所述目标ID包括以下至少之一:单播通信中接收所述序列的终端的ID;组播通信中的组ID;广播通信中的业务类型对应的ID。
- 根据权利要求118或119所述的终端,其中,所述源ID是在SCI中携带的源ID,所述目标ID是在SCI中携带的目标ID。
- 根据权利要求118或119所述的终端,其中,所述组ID包括组播通信中的组ID。
- 根据权利要求91至123所述的终端,其中,所述终端还包括:获取配置信息,所述配置信息用于配置所述序列的传输资源集合;根据所述配置信息确定所述序列的传输资源。
- 根据权利要求124所述的终端,其中,所述配置信息是资源池配置信息或带宽部分BWP配置信息。
- 根据权利要求124或125所述的终端,其中,所述配置信息是预配置或网络配置的。
- 根据权利要求124至126中任一项所述的终端,其中,所述配置信息包括以下参数至少之一:第二指示信息,用于指示是否支持通过所述侧行指示信息指示终端进入唤醒状态或休眠状态;第三指示信息,用于指示在休眠状态中是否需要检测所述侧行指示信息;时域资源指示信息,用于指示承载所述侧行指示信息的序列的时域资源;频域资源指示信息,用于指示承载所述侧行指示信息的序列的频域资源;码域资源指示信息,用于指示承载所述侧行指示信息的序列的码域资源;唤醒时长指示信息;休眠时长指示信息。
- 根据权利要求127所述的终端,其中,所述时域资源指示信息包括以下至少之一:周期信息,用于指示传输所述侧行指示信息的时域周期;时隙偏移量,用于确定在一个周期内传输所述侧行指示信息所在的时隙。
- 根据权利要求128所述的终端,其中,所述时域周期为零,表示不支持通过所述侧行指示信息指示终端进入唤醒状态或休眠状态的功能。
- 根据权利要求127所述的终端,其中,所述频域资源指示信息包括以下至少之一:承载所述侧行指示信息的序列对应的子信道个数、PRB个数或序列长度,用于确定承载所述侧行指示信息的序列的长度;频域资源集合指示信息,用于指示可用于承载所述侧行指示信息的序列的频域资源集合。
- 根据权利要求127所述的终端,其中,所述码域资源指示信息包括以下至少之一:根序列指示信息,用于确定生成根序列的参数;循环移位指示信息,用于确定循环移位值;循环移位对的个数,用于指示支持的循环移位对的个数。
- 根据权利要求127所述的终端,其中,所述唤醒时长指示信息包括以下至少之一:第二时长,用于确定进入唤醒状态的时长;循环移位值和唤醒时长的对应关系;SCI中携带的用于指示时长的信息域的取值与唤醒时长的对应关系。
- 根据权利要求127所述的终端,其中,所述休眠时长指示信息包括以下至少之一:第三时长,用于确定进入休眠状态的时长;循环移位值和休眠时长的对应关系;SCI中携带的用于指示时长的信息域的取值与休眠时长的对应关系。
- 根据权利要求79至90中任一项所述的终端,其中,所述侧行指示信息通过侧行链路控制信息SCI承载。
- 根据权利要求134所述的终端,其中,所述SCI是第一阶SCI或第二阶SCI。
- 根据权利要求134或124所述的终端,其中,所述侧行指示信息通过SCI中的信息域承载。
- 根据权利要求136所述的终端,其中,所述侧行指示信息通过SCI中的信息域承载的方式包括以下至少之一:所述信息域为第一值用于指示所述终端进入唤醒状态;所述信息域为第二值用于指示所述终端进入休眠状态。
- 根据权利要求136或137所述的终端,其中,所述侧行指示信息通过SCI中的信息域承载的方式包括以下至少之一:所述SCI中的第一信息域用于指示唤醒状态或休眠状态;所述SCI中的第二信息域用于指示唤醒状态的第二时长或休眠状态的第三时长。
- 根据权利要求79至90中任一项所述的终端,其中,所述侧行指示信息通过SCI的格式承载。
- 根据权利要求139所述的终端,其中,第一SCI格式对应唤醒状态,和/或,第二SCI格式对应休眠状态。
- 根据权利要求79至90中任一项所述的终端,其中,所述侧行指示信息通过SCI的扰码序列承载。
- 根据权利要求141所述的终端,其中,所述扰码序列用于对第一比特序列进行加扰,其中,所述第一比特序列是根据所述SCI的信息比特经过附加CRC序列生成的序列。
- 根据权利要求141所述的终端,其中,所述扰码序列用于对第二比特序列进行加扰,其中,所述第二比特序列是所述SCI的信息比特经过信道编码处理后的比特序列。
- 根据权利要求141至143中任一项所述的终端,其中,所述扰码序列用于指示唤醒状态的第二 时长和/或休眠状态的第三时长。
- 根据权利要求144所述的终端,其中,所述扰码序列的指示方式包括以下至少之一:当所述扰码序列由第一初始值生成时,所述扰码序列用于指示进入唤醒状态;当所述扰码序列由第二初始值生成时,所述扰码序列用于指示进入休眠状态;当所述扰码序列由第三初始值生成时,所述扰码序列用于指示进入唤醒状态的第二时长;当所述扰码序列由第四初始值生成时,所述扰码序列用于指示进入休眠状态的第三时长。
- 根据权利要求79至145中任一项所述的终端,其中,所述接收单元具体用于:在第一时间范围内接收所述侧行指示信息。
- 根据权利要求146所述的终端,其中,所述处理单元还用于:根据第一时域位置确定所述第一时间范围的起始位置和/或所述第一时间范围的结束位置。
- 根据权利要求147所述的终端,其中,所述处理单元还用于:获取侧行非连续接收DRX的配置信息;根据所述侧行DRX的配置信息确定所述第一时域位置。
- 根据权利要求148所述的终端,其中,所述侧行DRX的配置信息包括DRX持续定时器,所述第一时域位置是根据所述DRX持续定时器的启动、重置或生效时刻确定的。
- 根据权利要求147至149中任一项所述的终端,其中,所述处理单元还用于:根据所述第一时域位置和第一时间间隔确定所述第一时间范围的起始位置;或者,将所述第一时域位置确定为所述第一时间范围的起始位置。
- 根据权利要求150所述的终端,其中,所述第一时间间隔是根据预配置信息确定的,或根据网络配置信息确定的,或根据其他终端的指示信息确定的,或所述终端确定的。
- 根据权利要求147至151中任一项所述的终端,其中,所述处理单元还用于:根据所述第一时间范围的起始位置和第四时长确定所述第一时间范围的结束位置。
- 根据权利要求152所述的终端,其中,所述第四时长是根据预配置信息确定的,或根据网络配置信息确定的,或根据其他终端的指示信息确定的,或所述终端确定的。
- 根据权利要求147至149中任一项所述的终端,其中,所述处理单元还用于:将所述第一时域位置对应的时隙的前一个时隙确定为所述第一时间范围的结束位置。
- 根据权利要求154所述的终端,其中,所述处理单元还用于:根据所述第一时间范围的结束位置和第五时长确定所述第一时间范围的起始位置。
- 根据权利要求155所述的终端,其中,所述第五时长是根据预配置信息确定的,或根据网络配置信息确定的,或根据其他终端的指示信息确定的,或所述终端确定的。
- 一种终端设备,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1至78中任一项所述的方法。
- 一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至78中任一项所述的方法。
- 一种计算机可读存储介质,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至78中任一项所述的方法。
- 一种计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1至78中任一项所述的方法。
- 一种计算机程序,所述计算机程序使得计算机执行如权利要求1至78中任一项所述的方法。
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US20230247557A1 (en) | 2023-08-03 |
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EP4224944A1 (en) | 2023-08-09 |
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