WO2021180098A1 - 无线通信方法和通信装置 - Google Patents
无线通信方法和通信装置 Download PDFInfo
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- WO2021180098A1 WO2021180098A1 PCT/CN2021/079854 CN2021079854W WO2021180098A1 WO 2021180098 A1 WO2021180098 A1 WO 2021180098A1 CN 2021079854 W CN2021079854 W CN 2021079854W WO 2021180098 A1 WO2021180098 A1 WO 2021180098A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1848—Time-out mechanisms
- H04L1/1851—Time-out mechanisms using multiple timers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1864—ARQ related signaling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
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- H—ELECTRICITY
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- H04W52/02—Power saving arrangements
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- H04W52/0219—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave where the power saving management affects multiple terminals
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- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- 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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- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
- H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
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- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
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- H—ELECTRICITY
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- H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
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- H—ELECTRICITY
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- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- This application relates to the field of communication, and more specifically, to a wireless communication method and communication device.
- the Internet of Vehicles (V2X) is considered to be one of the fields with the most industrial potential and the clearest market demand in the Internet of Things system. It has the characteristics of wide application space, large industrial potential, and strong social benefits.
- the innovation and development of the communications industry, the construction of new models and business formats for automobiles and transportation services, the promotion of the innovation and application of autonomous driving technologies, and the improvement of transportation efficiency and safety are of great significance.
- the development of intelligent transportation systems has promoted the development of the Internet of Vehicle (IoV) from the traditional Internet of Vehicles that only supports in-vehicle information services to the next-generation Internet of Vehicles that supports vehicle to everything (V2X) services.
- V2V vehicle to vehicle
- V2I vehicle to infrastructure
- V2P vehicle to pedestrian
- V2P vehicle to network
- V2N vehicle to network
- 3GPP 3 rd generation partnership project
- LTE long term evolution
- NR new radio
- the present application provides a wireless communication method and communication device, in order to reduce the power consumption of terminal equipment.
- a wireless communication method is provided.
- the method can be executed by a first terminal device or a module (such as a chip) configured (or used for) the first terminal device.
- the method is executed by the first terminal device below. Take an example for illustration.
- the method includes: a first terminal device determines first configuration information of a first discontinuous reception DRX, where the first DRX is used to control the data of the receiving side uplink of the first terminal device; the first terminal device Sending the first configuration information to a second terminal device, where the second terminal device is a terminal device that has established a sidelink connection with the first terminal device.
- the receiving device operated by DRX determines the configuration information for the DRX operation of the side link according to the side link connection established by itself, which can ensure the reliability of its own communication while reducing the number of terminals.
- the receiving device operated by DRX notifies the sending device of the DRX configuration information used by the receiving device for the side link, so that the receiving device and the sending device of the DRX operation reach a consensus on the DRX operation and ensure the reliability of data transmission.
- the first configuration information includes one or more of the following information elements: the period of the first DRX, the start offset of the first DRX The amount of time, the slot offset of the first DRX, the information of the first timer or the information of the second timer, for example, the information of the first timer is used to configure each of the first DRX The DRX activation duration in the cycle, and the information of the second timer is used to configure the duration of the DRX activation time after the first terminal device receives a sidelink transmission.
- the receiving device of the DRX operation informs the sending device of the DRX cycle, the start offset, and the timer-related information used by the receiving device for the side link, so that the receiving device and the sending device of the DRX operation A consensus was reached on the DRX operation to ensure the reliability of data transmission.
- the first terminal device determining the first configuration information of the first discontinuous reception of DRX includes: the first terminal device receives one or The first configuration information is determined from the multiple configuration information.
- the one or more configuration information is preset by the first terminal device system or configured by the network device for the first terminal device.
- the first terminal device determines the first configuration information from one or more configuration information of the first DRX, including:
- the first terminal device determines the first configuration information from one or more configuration information of the side link DRX according to the QoS requirement of the side link service.
- the DRX-operated receiving device determines the DRX configuration information for the side-link service according to the QoS requirements of the side-link service, which can achieve the purpose of reducing power consumption while meeting the needs of data transmission. .
- the method further includes:
- the first terminal device receives second configuration information of the first DRX sent by the second terminal device, where the second configuration information includes configuration information related to hybrid automatic repeat request HARQ.
- the transmitting device used for the DRX operation of the side link notifies the receiving device of the configuration information related to HARQ in the DRX operation of the side link, and the appropriate timer duration can be determined according to the load situation, and then To achieve the purpose of energy saving.
- the first terminal device starts to perform the first DRX operation when one or more of the following is satisfied:
- the first instruction information After sending the first instruction information to the second terminal device, the first instruction information is used to instruct to start executing the first DRX;
- the second configuration information includes HARQ-related configuration information.
- the time to start the DRX operation for the side link is defined, which enables the receiving device and the sending device of the DRX operation to reach a consensus on the starting time of the DRX operation, and ensures the reliability of data transmission.
- the second configuration information includes information about a third timer and/or information about a fourth timer, for example, the information about the third timer
- the information is used to indicate the minimum duration of the next data retransmission from the same HARQ process
- the information of the fourth timer is used to indicate the maximum duration of detecting and/or receiving the retransmitted data.
- the transmitting device used for the DRX operation of the side link notifies the receiving device of the configuration information related to HARQ in the DRX operation of the side link, and the appropriate timer duration can be determined according to the load situation, and then To achieve the purpose of energy saving.
- the first terminal device stores the second configuration information in the context information of the second terminal device.
- the first terminal device after the first terminal device starts to perform the first DRX operation, it is in the DRX activation time in one or more of the following situations: first timing During the operation of the device, during the operation of the second timer, during the operation of the fourth timer, when the HARQ feedback of the side uplink needs to be received, within the time range of the data retransmission resource, waiting to receive the channel state information CSI report period, received The unicast establishment request and before the unicast establishment is completed or after the unicast establishment request is received.
- clarifying the activation time of DRX can make DRX-operated receiving devices and sending devices reach a consensus on the activation time of DRX, and ensure the reliability of data transmission.
- the sending of the first configuration information by the first terminal device to a second terminal device includes: the first terminal device sends the first configuration information to a plurality of second terminal devices Sending the first configuration information; and the receiving, by the first terminal device, the second configuration information of the first DRX sent by the second terminal device includes: the first terminal device receiving the plurality of first DRX Two pieces of second configuration information sent by a terminal device, where the multiple pieces of second configuration information correspond to the multiple second terminal devices on a one-to-one basis.
- the second configuration information specifically includes the corresponding Configuration information related to the HARQ process of the second terminal device.
- the receiving device operated by DRX maintains a common configuration information for DRX operation of the side link for multiple sending devices according to the side link connection established by itself,
- the method further includes: The first terminal device sends second indication information to one of the two second terminal devices, where the second indication information is used to instruct the one second terminal device to update the identifier, or , The first terminal device updates the identity of the first terminal device used when communicating with one of the two second terminal devices to the second identity; the first terminal device sends The one second terminal device sends third indication information, where the third indication information is used to indicate that the identity of the first terminal device is updated to the second identity.
- a communication method is provided.
- the method can be executed by a second terminal device or a module (such as a chip) configured (or used for) the second terminal device.
- the method is executed by the second terminal device below. Take an example for illustration.
- the method includes: a second terminal device receives first configuration information of a first discontinuous reception DRX sent by a first terminal device, where the first DRX is used to control the data of the receiving side uplink of the first terminal device; The second terminal device sends sidelink data to the first terminal device according to the first configuration information.
- the first configuration information includes one or more of the following information elements: the period of the first DRX, the start offset of the first DRX The amount of time, the slot offset of the first DRX, the information of the first timer or the information of the second timer, for example, the information of the first timer is used to configure each of the first DRX The DRX activation duration in the period, and the information of the second timer is used to configure the DRX activation duration after the first terminal device receives the control information for scheduling newly transmitted data.
- the method further includes: the second terminal device sends second configuration information of the first DRX to the first terminal device, and the first terminal device
- the second configuration information includes configuration information related to the hybrid automatic repeat request HARQ.
- the second configuration information includes information about a third timer and/or information about a fourth timer, for example, the information about the third timer
- the information is used to indicate the minimum duration from the next data retransmission in the same HARQ process
- the information of the fourth timer is used to indicate the maximum duration of detecting and/or receiving retransmitted data.
- the second configuration information is preset in the system of the second terminal device or configured by the network device for the second terminal device, or The second configuration information is determined by the second terminal device according to related information of the second terminal device, and the related information includes one or more of channel busy rate CBR, speed, and QoS requirements of the service.
- the second terminal device stores the first configuration information in the context information of the first terminal device.
- the method further includes:
- the second terminal device starts to perform the first DRX operation when one or more of the following is satisfied:
- the first indication information is used to indicate activation of the first DRX
- the second configuration information includes HARQ-related configuration information.
- the method further includes:
- the second terminal device determines that the first terminal device is in the DRX activation time in one or more of the following situations, and the second terminal device may report to the first terminal device in the receiving state of the first terminal device.
- a terminal device sends data:
- the HARQ feedback of the side uplink needs to be received, within the time range of the data retransmission resource, and during the waiting period for receiving the channel state information CSI report .
- the unicast establishment request is received and before the unicast establishment is completed, or before the first DRX operation is started.
- the method further includes: the second terminal device receiving second indication information sent by the first terminal device, where the second indication information is used for Instruct the second terminal device to update the identity, or the second terminal device receives third instruction information sent by the first terminal device, and the third instruction information is used to instruct the first terminal device to update the identity For the second logo.
- the second terminal device sends the first configuration information and/or the second configuration information to the network device.
- a communication method is provided, which can be executed by a network device or a module (such as a chip) configured in (or used for) the network device.
- the following takes the method executed by the network device as an example for description.
- the method includes: a network device receives first configuration information and/or second configuration information sent by a second terminal device, where the first configuration information and/or second configuration information is configuration information of a first DRX, and the first DRX Data used for the receiving side link of the first terminal device, the first configuration information is the configuration information of the first DRX determined by the first terminal device, and the second configuration information is the The configuration information of the first DRX determined by the second terminal device; the network device sends fourth indication information to the second terminal device, where the fourth indication information is used to indicate the first time-frequency resource, and the first A time-frequency resource is a resource used by the second terminal device to send data to the first terminal device, and the first time-frequency resource is within the first DRX activation time of the first terminal device.
- the first configuration information includes one or more of the following information elements: the period of the first DRX, the offset of the start position of the first DRX The amount of shift, the information of the first timer, or the information of the second timer, for example, the information of the first timer is used to indicate the DRX activation duration in each of the first DRX cycles, and the second The timer information is used to indicate the DRX activation duration after the first terminal device receives the control information for scheduling newly transmitted data.
- the second configuration information includes information about a third timer and/or information about a fourth timer.
- the information about the third timer The information is used to indicate the minimum duration from the next data retransmission in the same HARQ process, and the information of the fourth timer is used to indicate the maximum duration of detecting and/or receiving retransmitted data.
- the method further includes: the network device sends one or more configuration information to the first terminal device, where the one or more configuration information Including the first configuration information; and/or, the network device sends one or more fourth configuration information to the second terminal device, and the one or more fourth configuration information includes the second configuration information;
- a communication method is provided, which can be executed by a terminal device or a module (such as a chip) configured in (or used for) the terminal device.
- the following takes the method executed by the terminal device as an example for description.
- the method includes: a terminal device determines a first resource for carrying data of the broadcast service or multicast service according to the purpose identifier of the broadcast service or the multicast service; the first terminal device receives or transmits on the first resource The data of the broadcast service or multicast service.
- the receiving device can determine the resource location of the broadcast or multicast information according to the source device identification of the broadcast or multicast, which can prevent the terminal device from monitoring the broadcast or multicast information on all side link resources to reach the terminal The purpose of equipment energy saving.
- the first terminal device determines the first terminal device for carrying data of the broadcast service or multicast service according to the purpose identifier of the broadcast service or multicast service.
- Resources including:
- the first terminal device determines the first resource used to carry the data of the broadcast service or the multicast service according to the destination identifier of the broadcast service or the multicast service and a third mapping relationship, and the third mapping relationship includes the following: Kind or more:
- the purpose identifier mod N1 (time domain resource number/K1) mod M1;
- the purpose identifier mod N2 (frequency domain resource number/K2) mod M2,
- mod represents a modulus value
- one or more of N1, N2, K1, K2, M1, or M2 are parameter values predefined by the protocol and configured by the network device through an RRC dedicated message or the network device through a system message.
- a communication device comprising: a processing unit, configured to determine first configuration information of a first discontinuous reception DRX, the first DRX is used to control the receiving side chain of a first terminal device Data; a transceiver unit for sending the first configuration information to a second terminal device, the second terminal device being a terminal device that has established a side link connection with the first terminal device.
- the first configuration information includes one or more of the following information elements: the period of the first DRX, the start offset of the first DRX The amount of time, the slot offset of the first DRX, the information of the first timer or the information of the second timer, for example, the information of the first timer is used to configure each of the first DRX The DRX activation duration in the cycle, and the information of the second timer is used to configure the duration of the DRX activation time after the first terminal device receives a sidelink transmission.
- the processing unit is specifically configured to determine the first configuration information from one or more configuration information of the first DRX, for example, the one Or multiple pieces of configuration information are preset in the system of the first terminal device or configured by the network device for the first terminal device.
- the processing unit is specifically configured to determine the first link from one or more configuration information of the side link DRX according to the QoS requirements of the side link service.
- One configuration information One configuration information.
- the transceiver unit is configured to receive second configuration information of the first DRX sent by the second terminal device, and the second configuration The information includes configuration information related to hybrid automatic repeat request HARQ.
- the first terminal device starts to perform the first DRX operation when one or more of the following is satisfied:
- the first instruction information After sending the first instruction information to the second terminal device, the first instruction information is used to instruct to start executing the first DRX;
- the second configuration information includes HARQ-related configuration information.
- the second configuration information includes information about a third timer and/or information about a fourth timer, for example, the information about the third timer
- the information is used to indicate the minimum duration of the next data retransmission from the same HARQ process
- the information of the fourth timer is used to indicate the maximum duration of detecting and/or receiving the retransmitted data.
- the processing unit is configured to save the second configuration information in the context information of the second terminal device.
- the first terminal device after the first terminal device starts to perform the first DRX operation, it is in the DRX activation time in one or more of the following situations: first timing During the operation of the device, during the operation of the second timer, during the operation of the fourth timer, when the HARQ feedback of the side uplink needs to be received, within the time range of the data retransmission resource, waiting to receive the channel state information CSI report period, received The unicast establishment request and before the unicast establishment is completed or after the unicast establishment request is received.
- the transceiving unit is specifically configured to send the first configuration information to multiple second terminal devices; and the transceiving unit is specifically configured to receive The plurality of second configuration information sent by the plurality of second terminal devices, and the plurality of second configuration information corresponds to the plurality of second terminal devices in a one-to-one correspondence, for example, the The second configuration information specifically includes configuration information related to the HARQ process of the corresponding second terminal device.
- the transceiving unit is further configured to send second indication information to one of the two second terminal devices, where the second indication information is used to instruct the one second terminal device to update the identifier, or,
- the processing unit is further configured to update the identity of the first terminal device used when communicating with one of the two second terminal devices to a second identity;
- the transceiving unit is further configured to send third indication information to the one second terminal device, where the third indication information is used to indicate that the identity of the first terminal device is updated to a second identity.
- a communication device in a sixth aspect, includes: a transceiving unit, configured to receive first configuration information of a first discontinuous reception DRX sent by a first terminal device, and the first DRX is used to control the first DRX
- a terminal device receives side-link data
- a processing unit configured to send side-link data to the first terminal device according to the first configuration information.
- the first configuration information includes one or more of the following information elements: the period of the first DRX, the start offset of the first DRX The amount of time, the slot offset of the first DRX, the information of the first timer or the information of the second timer, for example, the information of the first timer is used to configure each of the first DRX The DRX activation duration in the period, and the information of the second timer is used to configure the DRX activation duration after the first terminal device receives the control information for scheduling newly transmitted data.
- the transceiver unit is further configured to send second configuration information of the first DRX to the first terminal device, where the second configuration information includes hybrid Automatic retransmission request HARQ-related configuration information.
- the second configuration information includes information about a third timer and/or information about a fourth timer, for example, the information about the third timer
- the information is used to indicate the minimum duration from the next data retransmission in the same HARQ process
- the information of the fourth timer is used to indicate the maximum duration of detecting and/or receiving retransmitted data.
- the second configuration information is preset in the system of the second terminal device or configured by the network device for the second terminal device, or the first The second configuration information is determined by the second terminal device according to related information of the second terminal device, and the related information includes one or more of channel busy rate CBR, speed, and QoS requirements of the service.
- the processing unit is further configured to save the first configuration information in the context information of the first terminal device.
- the second terminal device starts to perform the first DRX operation when one or more of the following is satisfied:
- the first indication information is used to indicate activation of the first DRX
- the second configuration information includes HARQ-related configuration information.
- the processing unit is further configured to determine that the first terminal device is in DRX activation time under one or more of the following situations, and the second The terminal device can send data to the first terminal device in the receiving state of the first terminal device: the first timer is running, the second timer is running, the fourth timer is running, and the side line needs to be received.
- the time of the link HARQ feedback within the time range of the data retransmission resource, waiting to receive the channel state information CSI report, receiving the unicast establishment request and before the unicast establishment is completed, or before the first DRX operation is started.
- the transceiver unit is further configured to receive second indication information sent by the first terminal device, and the second indication information is used to indicate the The second terminal device updates the identity, or the transceiving unit is further configured to receive third instruction information sent by the first terminal device, where the third instruction information is used to instruct the first terminal device to update the identity of the first terminal device to the first Two identification.
- the second terminal device sends the first configuration information and/or the second configuration information to the network device.
- a communication device in a seventh aspect, includes: a transceiver unit, configured to receive first configuration information and/or second configuration information sent by a second terminal device, the first configuration information and/or second configuration
- the information is the configuration information of the first DRX
- the first DRX is used for the data of the receiving side uplink of the first terminal device
- the first configuration information is the first DRX determined by the first terminal device.
- the processing unit is configured to determine a first time-frequency resource, where the first time-frequency resource is The second terminal device is used to send data to the first terminal device, and the first time-frequency resource is within the first DRX activation time of the first terminal device; the transceiving unit is also used to Sending fourth indication information to the second terminal device, where the fourth indication information is used to indicate the first time-frequency resource.
- the first configuration information includes one or more of the following information elements: the period of the first DRX, the offset of the start position of the first DRX The amount of shift, the information of the first timer, or the information of the second timer, for example, the information of the first timer is used to indicate the DRX activation duration in each of the first DRX cycles, and the second The timer information is used to indicate the DRX activation duration after the first terminal device receives the control information for scheduling newly transmitted data.
- the second configuration information includes information about a third timer and/or information about a fourth timer, for example, the information about the third timer
- the information is used to indicate the minimum duration from the next data retransmission in the same HARQ process
- the information of the fourth timer is used to indicate the maximum duration of detecting and/or receiving retransmitted data.
- a communication device comprising: a processing unit configured to determine the first data used to carry the broadcast service or multicast service according to the purpose identifier of the broadcast service or the multicast service. Resource; a transceiver unit that receives or sends data of the broadcast service or multicast service on the first resource.
- the processing unit is specifically configured to determine whether to carry the broadcast service or the broadcast service according to the purpose identifier of the broadcast service or the multicast service and the third mapping relationship.
- the third mapping relationship includes one or more of the following:
- the purpose identifier mod N1 (time domain resource number/K1) mod M1;
- the purpose identifier mod N2 (frequency domain resource number/K2) mod M2,
- mod represents a modulus value
- one or more of N1, N2, K1, K2, M1, or M2 are parameter values predefined by the protocol and configured by the network device through an RRC dedicated message or the network device through a system message.
- a communication device including a processor.
- the processor is coupled with the memory, and can be used to execute the method in the first aspect, the second aspect, or the fourth aspect, and any one of the possible implementation manners of the first aspect, the second aspect, or the fourth aspect.
- the communication device further includes a memory.
- the communication device further includes a communication interface, and the processor is coupled with the communication interface.
- the communication device is a first terminal device or a second terminal device.
- the communication interface may be a transceiver or an input/output interface.
- the communication device is a chip configured in the first terminal device or the second terminal device.
- the communication interface may be an input/output interface.
- the transceiver may be a transceiver circuit.
- the input/output interface may be an input/output circuit.
- a communication device including a processor.
- the processor is coupled with the memory and can be used to execute instructions in the memory to implement the third aspect and the method in any one of the possible implementation manners of the third aspect.
- the communication device further includes a memory.
- the communication device further includes a communication interface, and the processor is coupled with the communication interface.
- the communication device is a network device.
- the communication interface may be a transceiver, or an input/output interface.
- the communication device is a chip configured in a network device.
- the communication interface may be an input/output interface.
- the transceiver may be a transceiver circuit.
- the input/output interface may be an input/output circuit.
- a processor including: an input circuit, an output circuit, and a processing circuit.
- the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the method in any one of the first aspect to the fourth aspect and any one of the first aspect to the fourth aspect .
- the above-mentioned processor can be one or more chips
- the input circuit can be an input pin
- the output circuit can be an output pin
- the processing circuit can be a transistor, a gate circuit, a flip-flop, and various logic circuits, etc.
- the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
- the signal output by the output circuit may be, for example, but not limited to, output to the transmitter and transmitted by the transmitter
- the circuit can be the same circuit, which is used as an input circuit and an output circuit at different times.
- the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
- a processing device including a processor and a memory.
- the processor is used to read instructions stored in the memory, receive signals through a receiver, and transmit signals through a transmitter, so as to implement any one of the first to fourth aspects and any one of the possible implementations of the first to fourth aspects In the method.
- processors there are one or more processors and one or more memories.
- the memory may be integrated with the processor, or the memory and the processor may be provided separately.
- the memory can be a non-transitory (non-transitory) memory, such as a read only memory (ROM), which can be integrated with the processor on the same chip, or can be set in different On the chip, the embodiment of the present application does not limit the type of the memory and the setting mode of the memory and the processor.
- ROM read only memory
- sending instruction information may be a process of outputting instruction information from the processor
- receiving capability information may be a process of receiving input capability information by the processor.
- the data output by the processor can be output to the transmitter, and the input data received by the processor can come from the receiver.
- the transmitter and receiver can be collectively referred to as a transceiver.
- the processing device in the above-mentioned twelfth aspect may be one or more chips.
- the processor in the processing device can be implemented by hardware or software.
- the processor may be a logic circuit, integrated circuit, etc.; when implemented by software, the processor may be a general-purpose processor, which is implemented by reading software codes stored in the memory, and the memory may Integrated in the processor, can be located outside the processor, and exist independently.
- a computer program product includes: a computer program (also called code, or instruction), which when the computer program is executed, causes the computer to execute the first to fourth aspects above. Aspect and the method in any one of the possible implementation manners of the first aspect to the fourth aspect.
- a computer-readable medium stores a computer program (also called code, or instruction) when it runs on a computer, so that the computer executes the first aspect to the first aspect.
- a computer program also called code, or instruction
- the four aspects and the method in any one of the possible implementation manners of the first aspect to the fourth aspect.
- a communication system which includes at least one of the aforementioned first terminal device, second terminal device, or network device.
- Fig. 1 is a schematic architecture diagram of a communication system applicable to an embodiment of the present application.
- Fig. 2 is another schematic architecture diagram of a communication system applicable to the present application.
- FIG. 3 is a schematic diagram of an example of a wireless communication method according to an embodiment of the present application.
- FIG. 4 is another schematic flowchart of a wireless communication method according to an embodiment of the present application.
- FIG. 5 is a schematic diagram of another example of a wireless communication method according to an embodiment of the present application.
- Fig. 6 is a schematic diagram of an example of a time domain resource number provided by an embodiment of the present application.
- FIG. 7 is a schematic diagram of another example of the time domain resource number provided by an embodiment of the present application.
- FIG. 8 is a schematic block diagram of an example of the communication device of the present application.
- Fig. 9 is a schematic structural diagram of an example of a terminal device of the present application.
- Fig. 10 is a schematic structural diagram of an example of a network device of the present application.
- LTE long term evolution
- FDD frequency division duplex
- UMTS Universal Mobile Telecommunication System
- WiMAX Worldwide Interoperability for Microwave Access
- 5G Fifth Generation
- NR New Radio
- V2X vehicle-to-X
- V2X can include vehicle-to-network (V2N), vehicle-to-vehicle (V2V), and vehicle-to-infrastructure ( vehicle to infrastructure (V2I), vehicle to pedestrian (V2P), etc.
- Long Term Evolution-Vehicle (LTE-V) of workshop communication Internet of Vehicles, machine type communication (MTC), Internet of Things (IoT), Long Term Evolution-Machine (LTE-M), Machine to Machine (M2M), Non-terrestrial network (NTN) System or other communication systems that will
- Fig. 1 is a schematic diagram of a communication system 100 applicable to embodiments of the present application.
- the communication system applicable to the embodiments of the application may include at least two terminal devices, such as the terminal devices 102, 103, 104, and 105 in the communication system 100 as shown in FIG. 1.
- the communication system applicable to the embodiments of the application may further include at least one network device, such as the network device 101 in the wireless communication system 100 shown in FIG. 1.
- a sidelink (SL) can be established between the at least two terminal devices, such as links 120, 121, 122, 123, and 124 in Figure 1.
- the terminal devices that have established sidelinks can be directly connected to each other. To communicate.
- a terminal device can establish a side link with one or more terminal devices, the terminal device can perform discontinuous reception (DRX) operations, and the terminal device can receive and establish a connection with the terminal device within the DRX activation time. Data sent by one or more terminal devices on the side link.
- the terminal devices in the communication system can also establish a wireless connection with the network device for data communication.
- the terminal devices 102 and 103 shown in FIG. 1 establish wireless links 110 and 111 with the network device, respectively.
- the terminal equipment in the communication system may not establish a wireless link with the network equipment, such as the terminal equipment 104 and 105 shown in FIG. 1, which is not limited in this application.
- the terminal equipment in the embodiments of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal , Wireless communication equipment, user agent or user device.
- the terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (pad), a computer with a wireless transceiver function, a virtual reality (VR) terminal device, and an augmented reality (AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation safety ( Wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home (smart home), cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local Loop (wireless local loop, WLL) stations, personal digital assistants (personal digital assistants, PDAs), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted equipment,
- wearable devices can also be called wearable smart devices, which are the general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
- a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories.
- Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
- wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
- the terminal device may also be a terminal device in an Internet of Things (IoT) system.
- IoT Internet of Things
- Its main technical feature is to connect objects to the network through communication technology, so as to realize the intelligent network of human-machine interconnection and interconnection of things.
- the technical solutions in the embodiments of the present application can also be applied to network equipment.
- the network equipment includes but is not limited to: evolved Node B (eNB), radio network controller (RNC), road side unit (RSU), node B (node B, NB) ), base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved nodeB, or home node B, HNB), baseband unit (BBU),
- the access point (AP), wireless relay node, wireless backhaul node, transmission point (TP), or transmission and reception point in a wireless fidelity (WIFI) system TRP), etc. can also be a gNB or transmission point (TRP or TP) in a 5G (such as NR) system, or one or a group (including multiple antenna panels) antenna panels of a base station in a 5G system, or It can be a network node that constitutes a gNB or transmission point, such as a baseband unit (BBU
- the network equipment provides communication services for the terminal equipment in the cell.
- the terminal equipment in the cell communicates with the network equipment through the transmission resources (for example, frequency domain resources, time domain resources, etc.) allocated by the network equipment.
- the cell may belong to a macro base station (for example, , Macro eNB or Macro gNB, etc.).
- Broadcast and multicast refer to the broadcast or multicast data sent by a sending device, which can be received by one or more terminal devices.
- the Destination Layer-2 ID used when the service data is transmitted on the PC5 interface is predefined.
- the sending device When the sending device has the broadcast service data to send, it can directly send it through the user plane protocol stack, and fill the destination corresponding to the broadcast service in the media access control (MAC) layer and/or the physical layer (PHY) layer Layer-2 ID.
- the terminal device interested in the broadcast service can monitor whether there is the service data of the Destination Layer-2 ID corresponding to the broadcast service at the PHY layer, and receive and analyze the service data, but this application is not limited to this.
- Unicast is a one-to-one communication method for terminal devices.
- the sending device indicates the receiving device of the unicast data it sends through the destination address.
- the receiving device determines whether the unicast data is sent to itself according to the destination address of the unicast data. Data, and determine which device sent the unicast data according to the source address of the unicast data.
- two terminal devices can establish a unicast connection between the two devices through signaling interaction, and unicast communication can be performed after the establishment of the unicast connection is completed.
- the side link mode1 means that the terminal device determines the resource used to send the side link data according to the side link scheduling grant (sidelink grant) sent by the network device.
- the sidelink scheduling authorization is used to authorize resources dedicated to the terminal device to send sidelink data. For example, before sending the side link, the terminal device reports a buffer status report (BSR) to the network device to notify the network device of the amount of data to be sent, and the network device authorizes corresponding resources for it according to the amount of data reported by the terminal device.
- BSR buffer status report
- Sidelink mode2 means that the network device pre-allocates resources for the sidelink.
- Multiple terminal devices can compete for resources among the resources used for the sidelink.
- the terminal device can The data of the side link is sent on the resources obtained by the competition. For example, the terminal device selects unoccupied resources for transmission based on measuring whether each time-frequency resource in the resources used for the side link is occupied, but the application is not limited to this.
- Fig. 2 is a schematic flowchart of a side link communication method provided by an embodiment of the present application.
- the terminal device A determines the first configuration information of the first DRX.
- the first DRX is used to control the terminal device A to receive the SCI and/or data on the side uplink.
- the terminal device A may determine the first configuration information according to the quality of service (quality of service, QoS) requirement of the service, or the terminal device A may send the terminal device B (ie, an example of the second terminal device) to the terminal device according to the service quality of service (QoS) requirement.
- the auxiliary information sent by the device A determines the first configuration information.
- the auxiliary information sent by the terminal device B may also be sent to the network device, and the network device determines the first configuration information of the terminal device A and instructs the terminal device A.
- the QoS requirements of the services mentioned in this application may include but are not limited to one or more of the following:
- 5G Quality of Service Identifier 5G QoS identifier, 5QI
- PC5 Interface 5G Quality of Service Identifier PC5 QoS identifier, PQI
- logical channel priority of the service or other priority, reliability, delay or data rate reflecting service data
- QoS parameters 5G QoS identifier, 5QI
- PC5 QoS identifier, PQI PC5 Interface 5G Quality of Service Identifier
- the auxiliary information may include, but is not limited to, at least one of the following: resource configuration information, load information, speed information, service QoS requirement information, traffic pattern, and first configuration information suggested by terminal device B .
- the service mode may include information such as the period of the service, the offset of the arrival time of the service data with respect to a time reference point, and the maximum transmission block size of the service data.
- the terminal device B can detect or determine the auxiliary information and send it to the terminal device A.
- the auxiliary information can be instructed by the network device to the terminal device B and then forwarded to the terminal device A by the terminal device B.
- the auxiliary information can be It includes part of the information detected or determined by the terminal device and/or part of the information indicated by the network device, which is not limited in this application.
- the terminal device A may determine the first configuration information from one or more configuration information A, and the one or more configuration information A may be pre-configured by the system and/or the network device is the terminal device Configured.
- the network device configures the one or more configuration information A for the terminal device A through an RRC message and/or a system message.
- the terminal device A can have multiple sets of configuration information A that are pre-configured by the system and configured by the network device through at least two of the RRC message or the system message configuration.
- the terminal device A can determine the specific set according to the priority.
- the first configuration information is determined in the configuration information A. For example, the configuration information A configured by the network device has a higher priority than the configuration information A pre-configured by the system, and the configuration information A configured by the network device through the terminal device-specific RRC message has a higher priority than the configuration information A configured by the system message. Not limited to this.
- the terminal device A may determine the first configuration information according to, but not limited to, one or more of the following methods:
- the terminal device A may determine the first configuration information from the one or more configuration information A according to the aforementioned auxiliary information sent by the terminal device B to the terminal device A.
- the terminal device A may determine the first configuration information from the one or more configuration information A according to service requirements.
- the terminal device A may determine the first configuration information from the one or more configuration information A specifically according to the QoS requirements of the service and/or the first mapping relationship.
- the first mapping relationship may correspond to the value ranges of the QoS requirements of multiple services and multiple configuration information.
- the first mapping relationship may be as shown in Table 1.
- the terminal device A determines the first configuration according to the QoS requirements of its own services. information. If the QoS requirement of the service of the terminal device A is within the QoS requirement range 3 in Table 1, the terminal device A determines that the first configuration information is the configuration information 3 corresponding to the QoS requirement range 3.
- the terminal device A may determine the first configuration information according to the priority of the service.
- the priority of the service may be stipulated by the agreement or preset by the system, or the priority of the service is arranged in descending order or descending order according to the value of the QoS requirement, which is not limited in this application.
- terminal device A includes two services.
- the QoS requirement of service 1 is within range 1
- the QoS requirement of another service 2 is within range 3. Since the priority of service 2 is higher than the priority of service 1, The terminal device A determines that the first configuration information is the configuration information 3 corresponding to the service 2.
- QoS requirements Configuration information A QoS requirement scope 1 Configuration information 1 QoS requirement range 2 Configuration information 2 QoS requirement scope 3 Configuration information 3
- the terminal device A may determine the first configuration information from the one or more configuration information A specifically according to the service type and/or the second mapping relationship.
- the service type may be a service mode or the like.
- the first mapping relationship may correspond to multiple service types and multiple configuration information.
- the terminal device A determines the first configuration information from one or more configuration information A according to the service type.
- Business type Configuration information A Business type 1 Configuration information 1 Business Type 2 Configuration information 2 Business Type 3 Configuration information 3 Business Type 1, Business Type 2 Configuration information 4 Business Type 2, Business Type 3 Configuration information 5 Business type 1, business type 3 Configuration information 6 Business Type 1, Business Type 2, Business Type 3 Configuration information 7
- the terminal device A receives the instruction information A of the network device, the instruction information A indicates the first configuration information, the first configuration information is one of the one or more configuration information A, and the terminal device A according to the instruction information A Determine the first configuration information of the first DRX from the one or more configuration information A.
- the instruction information A may include the identifier of the configuration information A, and the terminal device A determines that the configuration information A corresponding to the identifier in the one or more configuration information A is the first configuration information according to the identifier in the instruction information A. , But this application is not limited to this.
- the first configuration information may include but is not limited to one or more of the following:
- the period of the first DRX is used to indicate the period length of the first DRX
- the start offset of the first DRX which is used to determine the start time of the first DRX cycle
- the slot offset of the first DRX is used to indicate the time offset from the start of the first DRX cycle to the start of the first timer.
- the first configuration information determined by the terminal device A includes the basic configuration of the first DRX.
- the terminal device A can determine the first DRX by receiving the second configuration information sent by the terminal device B in step S240. Other configuration information.
- the terminal device A performs the first DRX operation according to the first configuration information and/or the second configuration information, and monitors the SCI and/or data of the side link sent by the terminal device B during the DRX activation time.
- the terminal device B determines the DRX activation time of the first DRX of the terminal device A according to the first configuration information and/or the second configuration information, and sends the SCI and/or data of the side link to the terminal device B within the DRX activation time.
- the first configuration information includes the period of the first DRX, the start offset of the first DRX, the duration of the first timer, the duration of the second timer, and the time slot offset of the first DRX.
- the quantity can also include but not limited to one or more of the following:
- the duration of the third timer which is used to control the minimum duration from the next data retransmission in the same hybrid automatic repeat request (HARQ) process;
- the duration of the fourth timer which is used to control the maximum duration of detecting and/or receiving retransmitted data.
- the terminal device A determines all the configuration information of the first DRX, that is, the first configuration information, and informs the terminal device B in S220.
- the terminal device A performs the first DRX operation according to the first configuration information, receives the SCI and/or data of the side link sent by the terminal device B within the DRX activation time, and the terminal device B determines the first configuration information of the terminal device A according to the first configuration information.
- a DRX activation time of DRX during which DRX activation time sends the SCI and/or data of the side link to the terminal device B. That is, in this embodiment, S230 and/or S240 may not be performed, and the terminal device A and/or the terminal device B determine the DRX activation time of the terminal device A according to the first configuration information.
- S220 The terminal device A sends the first configuration information to the terminal device B.
- the terminal device B receives the first configuration information sent by the terminal device A.
- the terminal device B saves the first configuration information in the context information (UEcontext) of the terminal device A.
- the side link RRC message sent by the terminal device A to the terminal device B includes the first configuration information.
- the terminal device B determines second configuration information of the first DRX.
- the second configuration information may include HARQ related information in the first DRX operation.
- the second configuration information may include the information of the third timer and/or the information of the fourth timer.
- the information of the third timer is used to indicate the distance to the next HARQ process.
- the information of the fourth timer is used to indicate the maximum time for detecting and/or receiving retransmitted data.
- the terminal device B may determine the second configuration information according to one or more of the following methods:
- the terminal device B can determine the second configuration information according to the related information of the terminal device B.
- the related information may include, but is not limited to, one or more of channel busy rate (CBR), speed, or QoS requirements of the service.
- CBR channel busy rate
- the terminal device B may determine the second configuration information from one or more configuration information B.
- the one or more configuration information B may be pre-configured by the system and/or configured by the network device for the terminal device.
- the network device configures the one or more configuration information B for the terminal device B through an RRC message and/or a system message.
- terminal device B may have system pre-configuration, one or more configuration information B configured by the network device through at least two of the RRC message or system message configuration, and terminal device A may be configured according to the system pre-configuration and network device configuration.
- the second configuration information is determined in one or more pieces of information B of which one of the three items is configured.
- the configuration information of the network device has a higher priority than the configuration information pre-configured by the system
- the configuration information configured by the network device through the terminal device dedicated RRC message has a higher priority than the configuration information configured by the system message, but the application is not limited to this.
- the terminal device B determines the second configuration information in the one or more configuration information B (that is, an example of the fourth configuration information) according to the related information.
- the terminal device B determines the value range 1 in which the specific value of the related information is located according to the specific value of the related information, and determines the value
- the configuration information B corresponding to range 1 is the second configuration information.
- the terminal device B receives instruction information B of the network device, where the instruction information B indicates one of the one or more configuration information B, and the terminal device B determines the second configuration information according to the instruction information B.
- the indication information B may be included in the RRC message or system message sent by the network device.
- the terminal device B may obtain the side link resource in mode1, and the terminal device may determine the second configuration information according to the instruction information B of the network device.
- the indication information B may include the identification of one configuration information B in the one or more configuration information A.
- the terminal device B determines that the configuration information B corresponding to the identification is the first configuration information according to the identification in the indication information B. Not limited to this.
- S240 The terminal device B sends the second configuration information to the terminal device A.
- the terminal device A receives the second configuration information sent by the terminal device B.
- the terminal device A saves the second configuration information in the context information of the terminal device B.
- the side link RRC message sent by the terminal device B to the terminal device A includes the second configuration information.
- the terminal device B sends instruction information C to the network device.
- the indication information C is used to indicate the first configuration information and/or the second configuration information of the first DRX of the terminal device A.
- the network device receives the instruction information C, and determines the first DRX configuration information of the terminal device A according to the instruction information C.
- the indication information C includes the first configuration information of the first DRX.
- the second configuration information may be determined by the network device and notified to the terminal device B through the indication information B. Therefore, the network device has already obtained the second configuration information, and the first configuration information is obtained through the indication information C.
- the activation time of the first DRX of the terminal device A can be determined, and the network device can allocate resources within the activation time of the first DRX to the terminal device B, so that the terminal device B can provide the terminal device B within the activation time of the first DRX.
- Device A sends sidelink control information (SCI) and/or data, but the application is not limited to this.
- SCI sidelink control information
- the indication information C includes the first configuration information and/or the second configuration information of the first DRX.
- the network device determines the activation time of the terminal device A according to the instruction information C, so that the network device can allocate resources within the activation time of the first DRX to the terminal device B, so that the terminal device B can be in the activation time of the first DRX It sends SCI and/or data to the terminal device A internally, but this application is not limited to this.
- S250 is an optional step.
- the instruction information C can be sent to the network device, so that the network device can determine the DRX activation time of the terminal device A, so as to be the terminal device B allocates resources within the DRX activation time of the terminal device A, so that the terminal device B can send sidelink data to the terminal device A within the DRX activation time of the terminal device A, but the application is not limited to this.
- the terminal device B acquires the side link resource in the mode 2 mode, it may not send the instruction information C to the network device, that is, not perform S250, but the application is not limited to this.
- the terminal device B may also execute S250 after S220, before S230 or S240.
- S260 The terminal device A starts the first DRX operation.
- the terminal device B sends the SCI and/or data to the terminal device A within the activation time of the first DRX.
- the terminal device A may start the first DRX operation in one or more of the following situations:
- the terminal device A starts the first DRX operation after sending the first configuration information.
- the terminal device A starts the first DRX operation after receiving the first feedback information.
- the first feedback information is the feedback that the terminal device B has successfully received the first configuration information.
- the terminal device B may determine that the terminal device A starts the first DRX operation after sending the first feedback information.
- the second configuration information sent by the terminal device B may be used as the first feedback information, that is, the terminal device A considers that the terminal device B has successfully received the first configuration information after receiving the second configuration information , And start the first DRX operation.
- the terminal device B may determine that the terminal device A starts the first DRX operation after sending the second configuration information.
- the terminal device A starts the first DRX operation after sending the instruction information D (ie, an example of the first instruction information), and the instruction information D is used to instruct the terminal device A to start the first DRX operation.
- the instruction information D ie, an example of the first instruction information
- the terminal device A After the terminal device A sends the second feedback information to the terminal device B, the first DRX operation is started.
- the second feedback information is the feedback that the terminal device A successfully receives the second configuration information, and accordingly After receiving the second feedback information, the terminal device B determines that the terminal device A starts the first DRX operation.
- the terminal device A starts the first DRX operation after receiving the instruction information E sent by the terminal device B, and the instruction information E is used to instruct the terminal device A to start the first DRX operation.
- the terminal device B After the terminal device B determines that the terminal device A starts the first DRX operation, it can send the SCI and/or data to the terminal device A within the activation time of the first DRX of the terminal device A.
- the terminal device A starts the first timer after the start time of each first DRX cycle or the time slot offset of the start time, and receives the side line during the operation of the first timer.
- Link control information (sidelink control information, SCI), that is, the terminal device A is in the DRX activation time during the running of the first timer. If the first configuration information includes the start offset of the first DRX, the terminal device A may determine the start position of the first timer according to the start offset.
- starting timer mentioned in this application can be understood as starting a timer to start timing, or when a timer is running, starting the timer can be understood as restarting the timer.
- terminal device A can determine the subframe number that satisfies the condition according to the following formula:
- SlotOffset is the slot offset of the first DRX.
- SlotOffset can be the number of offset slots. But this application is not limited to this.
- terminal device A may perform one or more of the following actions:
- Monitor the SCI analyze the physical side link shared channel (PSSCH) or monitor the physical side link feedback channel (PSFCH) indicated by the monitored SCI.
- PSSCH physical side link shared channel
- PSFCH physical side link feedback channel
- the format of the SCI that the terminal device A needs to monitor may include, but is not limited to, format 0-1 (SCIformat 0-1) and/or format 0-2 (SCIformat0-2 ), for example, the SCI of the format 0-1 can indicate the relevant parameters of resource allocation, and the SCI of the format 0-2 can include one of the source address, destination address, retransmission or new transmission indication, and HARQ process indication Or a variety of information.
- the terminal device A When the terminal device A receives the SCI sent by the terminal device B within the activation time of the first DRX, and the SCI indicates that the transmitted data is the data of the terminal device:
- the SCI instructs the terminal device B to send the newly transmitted data to the terminal device A, then the second timer is started/restarted.
- terminal device B can adopt but not limited to the following implementation manners:
- the terminal device A starts the third timer. It should be noted that the operation of the third timer does not affect the activation time of the first DRX of the terminal device A, that is, whether the terminal device is in the activation time of the first DRX has nothing to do with the operation of the third timer. In other words, if the terminal device A is in the active time of the first DRX, regardless of whether the third timer is running, the terminal device A is still in the active time of the first DRX, if the terminal device A is in the inactive time of the first DRX, no matter Whether the third timer is running and the terminal device A is still in the inactive time of the first DRX.
- terminal device A may start the third timer after the next time unit or M time units carrying the data resource, or terminal device A may send feedback information (ACK or NACK) for this transmission. ), or start the third timer after M time units of NACK are fed back.
- terminal device A may only perform the next time unit after transmission on the first reserved transmission resource Or after M time units or after M time units of the transmission/NACK are fed back, the third timer is started.
- the time unit may be one of a symbol, a time slot, or a subframe, and M is an integer greater than or equal to 1.
- the value of M is predefined by a protocol or preconfigured by the system or configured by a network device.
- the fourth timer of the HARQ process is running, stop the fourth timer.
- the terminal device A feeds back unsuccessfully received feedback information or fails to decode the data, the terminal device A starts the fourth timer corresponding to the HARQ process, but the application is not limited to this.
- the duration of the third timer may be the duration of the third timer indicated in the first configuration information or the second configuration information, or it may be based on the resources of this transmission and the next transmission indicated in the SCI.
- the time interval (gap) determines a time length T1, for example, T1 can be equal to the aforementioned time interval (gap), or gap ⁇ K time units.
- the duration of the fourth timer may be the duration of the fourth timer indicated in the first configuration information or the second configuration information, or based on a fixed L time unit, or may be determined based on the retransmission resource occupation duration (duration)
- a duration of T2, such as T2 can be equal to duration, or duration ⁇ L time units.
- the time unit may be one of a symbol, a time slot, or a subframe
- K and L are integers greater than or equal to 1, for example, K, the value of L is predefined by the protocol or pre-configured by the system or by the network device Configure it.
- terminal device A receives the SCI for scheduling new data transmission during the operation of the first timer, then terminal device A starts the second timer, and terminal device A The SCI is monitored during the running of the second timer.
- the terminal device A starts the third timer corresponding to the HARQ process of the newly transmitted data, and the running period of the third timer does not affect the first timer of the terminal device A.
- a DRX activation time When the third timer expires, and the terminal device A feeds back the unsuccessfully received feedback information or the decoding of the data fails, the terminal device A starts the fourth timer to receive the retransmitted data.
- the terminal device A determines whether to receive the SCI and/or data on the subsequent retransmission resources indicated by the SCI according to the HARQ feedback result of the data or according to whether the data is successfully decoded.
- terminal device A For example, if terminal device A feeds back unsuccessfully received feedback information or fails to decode the data, it receives SCI and/or data on the retransmission resource indicated by the SCI; terminal device A feeds back the successfully received feedback information or decodes the data successfully. Data, the SCI and/or data are not received on the retransmission resource indicated by the SCI.
- the terminal device A determines not to receive the SCI and/or data on the retransmission resource indicated by the SCI, if the third timer and/or the fourth timer corresponding to the HARQ process are currently running, Then the terminal device A may stop the third timer and/or the fourth timer corresponding to the HARQ process.
- An optional implementation manner is that the terminal device A always receives the SCI and/or data on the subsequent retransmission resources indicated by the SCI.
- terminal device A can adopt but not limited to the following implementation manners:
- Embodiment a is the same as the above-mentioned embodiment A, and the above description can be referred to, and it will not be repeated here for the sake of brevity.
- terminal device A determines whether to start the third timer according to the HARQ enable condition indicated by terminal device B. If the HARQ indicated by terminal device B is in the disabled state, that is, terminal device A is not required to send HARQ Feedback, the terminal device A does not start the third timer. If the HARQ indicated by the terminal device B is in the enabled state, the terminal device A starts the third timer. Optionally, the terminal device A may send the HARQ Feedback information (ACK or NACK) or, after feeding back the next time unit or M time units of NACK, start the third timer, or terminal device A may feed back the next time unit after the feedback information of unsuccessful reception (NACK) The third timer is started after the time unit or M time units. The time unit can be one of a symbol, a time slot, or a subframe. M is an integer greater than or equal to 1, for example, the value of M is predefined by the protocol or The network is configured.
- the terminal device B can maintain various timers in the same manner as the aforementioned terminal device A, and can choose to send the SCI and/or data to the terminal device within the first DRX activation time. Or, the terminal device B only maintains the first timer and/or the second timer according to the first configuration information, for example, the terminal device B obtains the side link resource in mode1, and the network device maintains the third timer and/or The fourth timer, the network device selects the side link resource for the terminal device B according to the activation time of the first DRX of the terminal device A, and informs the terminal device B, and the terminal device B sends to the terminal device A according to the network device instruction Therefore, the terminal device B may not maintain the third timer and the fourth timer.
- the terminal device A is in the DRX activation time under one or more of the following situations:
- the fourth timer associated with at least one HARQ process is in the running state.
- the terminal device A needs to receive the HARQ feedback time of the side link.
- terminal device A while terminal device A is waiting to receive a channel state information (CSI) report, optionally, terminal device A starts or restarts the fifth timer after sending the CSI request, and terminal device A runs on the fifth timer During this period, the terminal device is in the DRX active time, and stops the fifth timer after receiving the CSI report.
- CSI channel state information
- the terminal device A is in the activation time of the first DRX within the first time interval after sending the CSI request.
- the time length of the fifth timer and/or the first time interval may be obtained in one or more of the following ways:
- Protocol pre-definition system pre-configuration, network device configuration, or indication of the terminal device sending the CSI report.
- the network device configures the time length of the fifth timer and/or the first time interval through an RRC dedicated message or a system message, and the terminal device that sends the CSI report may indicate the fifth timer through a sidelink RRC message.
- the length of the timer and/or the first time interval may indicate the fifth timer through a sidelink RRC message.
- terminal device A receives a unicast establishment request sent by a terminal device other than terminal device B, or terminal device A sends a unicast establishment request to a terminal device other than terminal device B, and the unicast establishment is completed Before or before the interactive DRX configuration is completed or before the DRX operation is performed, optionally, the terminal device A starts or restarts the sixth timer after receiving or sending the unicast establishment request, and the terminal device A is during the running period of the sixth timer. The terminal device is in the DRX activation time, and the sixth timer is stopped after the unicast establishment is completed or the interactive DRX configuration is completed/the DRX operation is started.
- the terminal device A is in the activation time of the first DRX within the second time interval after receiving the unicast establishment request.
- Case G can be extended to other processes.
- terminal device A sends a request message, such as a configuration request, to a terminal device.
- terminal device A Before receiving the corresponding response message sent by the terminal device, terminal device A is in the DRX activation time.
- the terminal device A starts or restarts the sixth timer after the request message is sent to the one terminal device, and the terminal device A is in the DRX activation time during the operation of the sixth timer.
- the sixth timer is stopped.
- the terminal device A is in the activation time of the first DRX within the second time interval after sending the request message to the one terminal device.
- the time length of the sixth timer and/or the second time interval can be obtained in one or more of the following ways:
- Protocol pre-definition, system pre-configuration, network device configuration configures the time length of the sixth timer and/or the second time interval through an RRC dedicated message or a system message.
- clarifying the activation time of DRX can make DRX-operated receiving devices and sending devices reach a consensus on the activation time of DRX, and ensure the reliability of data transmission.
- the terminal device A can reconfigure the first DRX information to the terminal device B.
- the terminal device A can send the first DRX reconfiguration to the terminal device B through the RRC message of the side link. Configuration information.
- the terminal device A may reconfigure the first DRX information when one or more of the following conditions are met.
- the terminal device A initiates a service with a new QoS requirement, and the current configuration information of the first DRX cannot meet the new QoS requirement. For example, if the current configuration information of the first DRX cannot meet the delay requirement of the new service, the terminal device A reconfigures the first DRX and notifies the terminal device B of the reconfiguration information of the first DRX, but this application is not limited to this.
- the terminal device A receives the foregoing instruction information A sent by the network device, and the instruction information A indicates configuration information A that is different from the first configuration information.
- the instruction information A indicates an identifier of the configuration information A that is different from the identifier of the first configuration information.
- the terminal device A After receiving the instruction information A, the terminal device A reconfigures the information of the first DRX and notifies the terminal device B of the first DRX.
- a DRX reconfiguration information but this application is not limited to this.
- the terminal device B may also reconfigure the first DRX information to the terminal device A.
- the terminal device B may send the first DRX information to the terminal device A through the RRC message of the side link. Reconfiguration information.
- the terminal device B may reconfigure the first DRX information when one or more of the following conditions are met.
- Condition 1 The side link resource allocation mode of terminal device B changes. If the side link resource allocation mode is switched from mode1 to mode2 or from mode2 to mode1, terminal device B can update the second configuration information of the first DRX and send the updated configuration information to terminal device A.
- Condition 2 The connection state between terminal device B and the network changes. For example, terminal device B changes from RRC connected state to RRC idle state or RRC inactive state, or changes from RRC idle state or RRC Inactive state to RRC connected state, or moves from the network device coverage to the network device coverage In addition, or if the network device moves outside the coverage area of the network device, the terminal device B may update the second configuration information of the first DRX and send the updated configuration information to the terminal device A.
- the second configuration information of the first DRX is obtained through system preconfiguration, and the terminal device B is within the coverage of the network device, and the second configuration information is obtained through the RRC message and/or system message of the network device.
- the second configuration information of a DRX when the terminal device B moves from outside the coverage area of the network device to the coverage area of the network device, the new second configuration information of the first DRX may be acquired and sent to the terminal device A.
- the terminal device B determines that the related information of the second configuration information of the first DRX has changed, such as one or more of the channel busy rate (CBR), speed, or QoS requirements of the service has changed, and the terminal device B may update the second configuration information of the first DRX and send the updated configuration information to the terminal device A.
- CBR channel busy rate
- the receiving device operated by DRX determines the configuration information for the DRX operation of the side link according to the side link connection established by itself, which can avoid configuring the side link for the receiving device on the network device.
- link DRX operation because the network device cannot obtain the connection status of the side link of the receiving device, the configuration is unreasonable and cannot achieve the purpose of energy saving or reduce the reliability of communication. Therefore, the solution of the present application can reduce the power consumption of the terminal device and improve the reliability of communication.
- the solution of the present application proposes that the transmitting device used for the DRX operation of the side link notifies the receiving device of the configuration information related to HARQ in the DRX operation of the side link, and an appropriate timer can be determined according to the load situation. Time, and then achieve the purpose of energy saving.
- Fig. 4 is another schematic flowchart of a side link communication method provided by an embodiment of the present application.
- the terminal device A can establish a side link with multiple terminal devices.
- FIG. 4 shows that the terminal device A and two terminal devices, namely the terminal device B and the terminal device C (ie, another terminal device of the second terminal device) One example) is described as an example, but the application is not limited to this. It should be noted that the same or similar parts in FIG. 4 and FIG. 2 can be referred to the above description of FIG.
- the terminal device A determines first configuration information of the first DRX.
- the first DRX is used by the terminal device A to receive SCI and/or data on multiple side links. That is to say, when the terminal device A establishes a side link connection with multiple terminal devices, the terminal device maintains a set of DRX configuration, that is, the configuration information of the first DRX, and determines the DRX activation time according to the configuration information of the first DRX. , To receive SCI and/or data on multiple side links.
- the terminal device A may determine the first configuration information of the first DRX according to the quality of service (QoS) requirements of the services on the multiple side links, or the first configuration information of the multiple side links
- QoS quality of service
- the terminal device A may determine the first configuration information from one or more configuration information A.
- the terminal device A may determine the first configuration information by using one or more of the above-mentioned methods 1 to 3 for determining the first configuration information. For example, in the method 1 and the method 3, the terminal device A may comprehensively consider the terminal device B and the terminal device B. /Or the auxiliary information and service requirements of the terminal device C determine a piece of first configuration information. Or the terminal device A may determine one piece of first configuration information according to the auxiliary information of the terminal device B and the auxiliary information of the terminal device C with a higher priority. Or, the terminal device A may determine one piece of first configuration information according to a service with a higher priority among the services in the multiple side links, but the application is not limited to this.
- the first configuration information includes the period of the first DRX, the start offset of the first DRX, the duration of the first timer, the duration of the second timer, and the slot offset of the first DRX.
- the other configuration information of the first DRX may be sent to the terminal device A through the terminal device B and/or the terminal device C, that is, the terminal device B and/or the terminal device C respectively determine the second configuration information, that is, the second configuration information B through S430 After the second configuration information C is sent to the terminal device A in S440 respectively.
- the terminal device A sends the first configuration information to the terminal device B and/or the terminal device C.
- the terminal device B receives the first configuration information, and saves the first configuration information in the context information of the terminal device A.
- the terminal device C receives the first configuration information, and saves the first configuration information in the context information of the terminal device A.
- the terminal device A may broadcast or multicast the first configuration information.
- the terminal device B and/or the terminal device C determines that the first configuration information of the broadcast or multicast is sent by the terminal device A according to the identifier of the terminal device A.
- the terminal device A sends the first configuration information to the terminal device B and/or the terminal device C respectively in a unicast manner.
- the time when the terminal device A sends the first configuration information to the terminal device B may be earlier or later than the time when the first configuration information is sent to the terminal device C, or at the same time to the terminal device C.
- B and terminal device C respectively send the first configuration information.
- This application does not limit the order in which terminal device A sends the first configuration information to each terminal device.
- terminal device A may send the first configuration information to each terminal device after a unicast connection is established. The one terminal device sends the first configuration information, but the application is not limited to this.
- the terminal device B determines the second configuration information b of the first DRX, and the terminal device C determines the second configuration information c of the first DRX.
- the terminal device B determines the second configuration information b and/or the terminal device C determines the second configuration information c, refer to the description of the terminal device B determining the second configuration information in FIG.
- the second configuration information B includes information of the third timer b and/or information of the fourth timer b
- the second configuration information c includes information of the third timer b and/or information of the fourth timer b.
- the terminal device B sends the second configuration information B to the terminal device A, and the terminal device C sends the second configuration information C to the terminal device A.
- the terminal device A maintains a set of configuration information for receiving the side link SCI and/or data, that is, the configuration information of the first DRX, which includes the first configuration information determined by the terminal device A, the terminal The second configuration information b determined by the device B and the second configuration information c determined by the terminal device C.
- the terminal device A determines the time t1 to start the first timer according to the period of the first DRX and/or the start position offset in the first configuration information, and it is DRX active during the operation of the first timer.
- terminal device A monitors the SCI and/or data sent by terminal device B and terminal device C.
- the terminal device A detects the SCI sent by the terminal device C, and the SCI 1 indicates that the newly transmitted data 1 is scheduled, and the terminal device A starts the second timer.
- the SCI 1 also instructs the terminal device C to reserve retransmission resources for the terminal device A, and the terminal device A starts the third timer c of the HARQ process 1 corresponding to the newly transmitted data 1 according to the second configuration information c of the first DRX. .
- the fourth timer c of the HARQ process 1 is started.
- the terminal Device A receives the retransmitted data of the HARQ process 1.
- terminal device A receives SCI 2 sent by terminal device B, terminal device A starts the third timer b of the corresponding HARQ process 2, and after the third timer b of HARQ process 2 expires , Start the fourth timer b corresponding to the HARQ process 2.
- terminal device B and terminal device C execute S430 and S440, respectively.
- This application does not limit the order in which terminal device B executes S430 and S440 and terminal device C executes S430 and S440.
- terminal device C executes S430 If S440 is executed, terminal device C may execute S440 before terminal device B executes S430 or S440, which is not limited in this application.
- the first configuration information includes the period of the first DRX, the start offset of the first DRX, the duration of the first timer, the duration of the second timer, and the time slot offset of the first DRX. In addition to one or more of the quantities, it may also include, but is not limited to, the duration of the third timer and/or the duration of the fourth timer.
- the terminal device A determines all the configuration information for the terminal device A to perform the first DRX operation, that is, the first configuration information, and the terminal device A performs the first DRX operation according to the first configuration information.
- the SCI and/or data of the side link sent by terminal device B and terminal device C are monitored. Both terminal device B and terminal device C determine the DRX activation time of the first DRX of terminal device A according to the first configuration information,
- the SCI and/or data of the side link can be sent to the terminal device A within the DRX activation time. That is, in this embodiment, S430 and/or S440 may not be performed, and the terminal device A, the terminal device B, and the terminal device C determine the DRX activation time of the terminal device A according to the first configuration information.
- the terminal device B and/or the terminal device C may also send instruction information C to the network device respectively, which is the instruction information C1 and the instruction information C2, respectively.
- the instruction information C1 sent by the terminal device B to the network device may include the first configuration information and/or the second configuration information b.
- the instruction information C2 sent by the terminal device C to the network device may include the first configuration information and/or the second configuration information c.
- Specific implementation manners can refer to the manner in which the terminal device B sends the instruction information C to the network device in FIG.
- the terminal device B and the terminal device C may be connected to the same network device or may be connected to different network devices.
- one of the terminal device B and the terminal device C may be designated by the network device to send the first configuration information to the network device, but the application is not limited to this.
- S450 The terminal device A starts the first DRX operation.
- the terminal device B sends the SCI and/or data to the terminal device A within the activation time of the first DRX, and the terminal device B sends the SCI and/or data to the terminal device A within the activation time of the first DRX.
- the terminal device B and the terminal device C may determine the activation time of the first DRX according to the first configuration information and/or the second configuration information.
- the terminal device B or the terminal device C needs to send the SCI and/or data to the terminal device A
- the SCI and/or data are sent to the terminal device A within the activation time of the first DRX.
- the receiving device operated by DRX maintains a common configuration information for DRX operation of the side link for multiple sending devices according to the side link connection established by itself, which can avoid sending
- the configuration information of multiple sending devices is inconsistent, causing the receiving device to receive signals within the DRX operation activation time configured by each sending device, and energy saving cannot be achieved .
- the solution of the present application can effectively achieve the purpose of reducing the power consumption of the terminal device.
- the solution of the present application proposes that the transmitting device used for the DRX operation of the side link notifies the receiving device of the configuration information related to HARQ in the DRX operation of the side link, and an appropriate timer can be determined according to the load situation. Time, and then achieve the purpose of energy saving.
- the unicast connection of the side link can be identified by the source Layer-2 ID of the two terminal devices, but when the sending device sends the unicast data of the side link, such as sending
- the source layer-1 ID (source Layer-1 ID) of the sending device is carried in the SCI, which is used to identify the sending device, that is, the receiving device is in
- the terminal device that sends the SCI can be determined according to the source layer 1 identifier.
- the length of the source layer 2 identifier of the terminal device is 24 bits
- the source layer 1 identifier sent by the terminal device in the SCI is the lower 8 bits of the source layer 2 identifier.
- the destination Layer-1 ID carried in the SCI is the lower 16 bits of the destination Layer-2 ID. That is, after receiving the SCI, the receiving device can determine whether the SCI is sent to the receiving device according to whether the destination layer 1 identifier carried in the SCI is the lower 16 bits of the source layer 2 identifier of the receiving device.
- the above method may cause the conflict of layer 1 identifiers (source layer 1 identifier or destination layer 1 identifier).
- the source layer 2 identifiers of terminal device A, terminal device B, and terminal device C are DEF, ABC, PQC, respectively, Exemplarily, each letter in the identifier identifies an 8-bit value.
- the source layer 1 identifier included in the corresponding SCI 3 of the data sent by the terminal device B to the terminal device A is C
- the destination layer 1 identifier is EF
- the source included in the corresponding SCI 4 of the data sent by the terminal device C to the terminal device A Layer 1 is identified as C
- destination layer 1 is identified as EF; therefore, terminal device A cannot distinguish whether the SCI is sent by terminal device B or terminal device C by indicating the source layer 1 identifier in the SCI.
- the destination layer 1 identifier is the same, the data between the two terminal devices may be received incorrectly.
- this application proposes a method for resolving identification conflicts in side-link communication.
- terminal device A when terminal device A determines that the source layer 1 identifier or destination layer 1 identifier of terminal device B and terminal device C are the same, terminal device A sends a message to one of terminal device B or terminal device C
- the indication information F ie, an example of the second indication information
- the indication information F is used to request the terminal device B or the terminal device C to update the identity.
- the indication information can indicate that the updated identity can be the source layer 1 identity and the destination layer One of 1 identification or source layer 2 identification.
- the terminal device B or the terminal device C updates the identifier after receiving the instruction information F, and sends the updated identifier to the terminal device A.
- the terminal device A determines that the source layer 1 identification or the destination layer 1 identification of the terminal device B and the terminal device C are the same, for example, in the case of the first identification, the terminal device A may be connected to the terminal device B or The identifier used by the terminal device C during communication is updated to the second identifier.
- the terminal device A sends instruction information G (that is, an example of the third instruction information) to one of the terminal device B or the terminal device C, and the instruction information G is used to indicate the terminal device B or the terminal device C to the terminal device A.
- the logo is updated to the second logo.
- terminal device A determines that the identities of the two terminal devices conflict, it updates the identity used when it communicates with one of the terminal devices (terminal device B or terminal device C), that is, updates to the second identity, and informs the A terminal device.
- terminal device A receives the SCI from the terminal device, it is determined that the SCI is sent to the terminal device A by the terminal device according to the destination identifier carried in the SCI as the second identifier.
- the source identifier carried by the SCI is the second identifier or the lower 8 bits of the second identifier, so that after the terminal device receives the SCI sent by the terminal device A, according to The source identifier carried by the SCI is the second identifier or the lower 8 bits of the second identifier, and it is determined that the SCI is sent by the terminal device A to the terminal device.
- terminal device A determines that the source layer 1 identifiers of terminal device B and terminal device C are both C (that is, the first identifier is C), and terminal device A determines to update the identifier used by terminal device A when communicating with terminal device B, for example , Update to ED (that is, the second identifier is ED), and send instruction information G to terminal device B, and terminal device B receives instruction information G and determines that the identifier of terminal device A is updated to ED.
- Update to ED that is, the second identifier is ED
- terminal device B When terminal device B sends SCI to terminal device A, the destination identifier indicated by the SCI is ED; after terminal device B receives an SCI, it is determined that the SCI is a terminal device according to the source identifier indicated in the SCI as ED or D A sent, but this application is not limited to this. According to the above solution, it is possible to prevent the terminal device from being unable to determine the actual sending device or the receiving device of the data due to identification conflicts, and it is possible to improve the security of communication and the reliability of communication.
- the terminal device can determine the time domain resource or frequency domain resource for receiving broadcast service or multicast service data according to the purpose identifier of the broadcast service or multicast service.
- the terminal device may determine the time domain resource or frequency domain resource of the broadcast service or multicast service data according to the purpose identifier of the broadcast service or multicast service and/or the third mapping relationship.
- the destination ID can be the destination Layer-2 ID of the broadcast service or multicast service, that is, the destination Layer-2 ID.
- the destination ID can also be the application layer ID of the broadcast service or multicast service.
- destination layer 1 identification for example, the low 16 bits of the destination layer 2 identification
- the destination layer 2 identification/lower N bits or high N bits of the destination layer 1 identification where N is an integer greater than or equal to 1, specific implementation Time is not limited.
- the third mapping relationship may include but is not limited to one or more of the following:
- the purpose identifier mod N1 (time domain resource number/K1) mod M1;
- the purpose identifier mod N2 (frequency domain resource number/K2) mod M2,
- mod represents the modulus value
- one or more of N1, N2, K1, K2, M1, or M2 can be parameters predefined by the protocol, preset by the system, and configured by network equipment through RRC dedicated messages or system messages value.
- the time domain resource number can be written as resourceIndexTime, for example, the index of the time domain resource in the resource pool, where the resource pool is a resource used for side link communication.
- the frequency domain resource number can be written as resourceIndexFreq, for example, the frequency domain resource index in the resource pool.
- the third mapping relationship can be written as:
- resourceIndexFreq is determined according to the sequence number of the frequency domain unit where the wireless transmission resource is located. For example, it may be the index number of the resource block in the carrier or the index number of the subchannel in the resource pool.
- resourceIndexTime can be determined in one or more of the following ways:
- resourceIndexTime is determined according to the serial number of the time unit where the wireless transmission resource is located.
- the serial number of the time unit may include but is not limited to one of the following:
- Radio frame index such as system frame number (SFN) or direct frame number (DFN)
- subframe number such as subframe number in a radio frame
- Slot index slot index, such as a slot number in a subframe
- symbol index symbol index, such as a symbol number in a slot
- the resourceIndexTime can be as follows:
- resourceIndexTime radio frame index ⁇ 10+subframe index.
- radio frame index is the number of the radio frame where the side link resource is located
- subframe index is the number of the subframe where the side link resource is located
- the resourceIndex may be as follows:
- resourceIndexTime (radio frame index*10+subframe index) ⁇ NumOfSlotPerSubframe+slot index,
- slot index is the number of the time slot where the side link resource is located
- NumOfSlotPerSubframe is the number of time slots in a subframe. Taking a 15kHz subcarrier as an example, there are 10 slots in a subframe, but this application is not limited to this.
- the terminal device ignores the wireless resource position, that is, it cannot send or receive broadcast services or groups at the wireless resource position. Broadcast business data.
- resourceIndexTime is the number of the side link resource in a resource pool period.
- subframe 1 to subframe 5 in each radio frame on a carrier is the side link resource pool, and the period of the resource pool is 10ms, that is, a radio frame length; in each resource pool period , Each subframe is numbered sequentially, that is, the first subframe in the resource pool (that is, the subframe 1 in the radio frame) is numbered 0 in the resource pool period, and the second subframe in the resource pool (that is, the subframe in the radio frame) is 0. Frame 2)
- the number in the resource pool period is 1, and so on. This example is only used as an example for illustration.
- the resources in the resource pool may also be numbered at a time granularity of radio frames, time slots, or symbols.
- resourceIndexTime is the number (or sequence number) of the uplink resource inside a numbering period.
- the subframe 1 to subframe 5 in each radio frame above are the resource pool of the side link. Therefore, the first numbering period T includes 10 side link subframes, and the numbers in the numbering period are respectively From 0 to 9.
- the numbering period T may also be defined as a multiple of the resource pool period, for example, the time length of the numbering period is equal to twice the resource pool period length.
- the resources in the resource pool can also be numbered at a time granularity of radio frames, time slots, or symbols.
- the following example illustrates that the terminal device determines the time domain resource or frequency domain resource of the broadcast service or multicast service data according to the destination layer 2 identifier and/or the third mapping relationship.
- the resourceIndexTime is determined according to the above method 3, and the numbering period may be two radio frames.
- the third rule it can be determined that the broadcast service or multicast service of the destination Layer-2 ID of 1001 can be transmitted on the side link resources of the odd resource number in the numbering period, and the broadcast service of the destination Layer-2 ID of 1002 /Multicast services can be transmitted on the side link resources whose resource numbers are even in the numbering period.
- the terminal device can determine the new data transmission and/or data retransmission resource of a broadcast service or multicast service through the above-mentioned third mapping relationship, that is, the sending device of the broadcast service or multicast service determines that the transmission device of the broadcast service or the multicast service uses the destination identifier.
- Newly transmitted data and/or retransmitted data are sent on the side link resource of the broadcast service or multicast service.
- the receiving device of the broadcast service or multicast service monitors whether there is the broadcast service or multicast service on the side link resource determined by the destination identifier. Newly transmitted data and/or retransmitted data of the service.
- the terminal device may determine a broadcast service or multicast service to perform new transmission resources through the above-mentioned third mapping relationship, and the sending device of the broadcast service or multicast service is on the side link resource determined by the destination identifier. Send newly transmitted data, and indicate the time-frequency domain resource location for retransmission in the SCI. After the receiving terminal device fails to parse the data, it receives the retransmitted data at the retransmission resource location indicated in the SCI;
- the timer A associated with the broadcast service or the multicast service is configured through one or more of protocol pre-definition, system pre-configuration, or network through broadcast signaling or RRC dedicated signaling configuration, for example It can be written as harqRTT-Timer and/or timer B, for example, it can be written as harqRetx-Timer.
- the application does not limit the specific name.
- the timer harqRTT-Timer is used to indicate the minimum duration from the next data retransmission in the same HARQ process
- the timer harqRetx-Timer is used to indicate the maximum duration of detecting and/or receiving retransmitted data.
- the receiving device When the receiving device detects newly transmitted data or retransmitted data on the side link resource determined by the destination identifier, it starts the timer harqRTT-Timer corresponding to the HARQ process of the newly transmitted data or the retransmitted data, optional, The terminal device can stop the timer harqRetx-Timer corresponding to the HARQ process.
- the terminal device can start the harqRTT-Timer after a period of time after receiving the newly transmitted data and/or retransmitted data on the side link resources, such as after K subframes/slots/symbols, or the terminal device After the NACK is fed back; the terminal device can also determine the location of the retransmission time-frequency domain resources that are not reserved after the transmission according to the indication information in the SCI, and then start the harqRTT-Timer.
- timer harqRTT-Timer When the timer harqRTT-Timer times out, start the timer harqRetx-Timer corresponding to the HARQ process; or when the timer harqRTT-Timer times out and the receiving device fails to parse the received data this time or feeds back a NACK, start the timer The timer harqRetx-Timer.
- the receiving device continuously monitors the data transmission on the side link, such as SCI and/or data.
- the technical solution provided in this embodiment can also be extended to a unicast communication mode.
- the terminal device determines the time domain resource or frequency domain resource for unicast service data transmission through the destination identifier of the unicast service and/or the third mapping relationship. But this application is not limited to this.
- the receiving device can determine the resource location of the broadcast or multicast information according to the source device identification of the broadcast or multicast, which can prevent the terminal device from monitoring the broadcast or multicast information on all side link resources to reach the terminal The purpose of equipment energy saving.
- Fig. 8 is a schematic block diagram of a communication device provided by an embodiment of the present application.
- the communication device 1500 may include a processing unit 1510 and a transceiving unit 1520.
- the communication device 1500 may correspond to the terminal device A in the above method embodiment, or be configured (or used in) the chip in the terminal device A or the chip in the terminal device B.
- the communication device 1500 may correspond to the terminal device A in the methods 200 and 400 according to the embodiments of the present application, and the communication device 1500 may include the terminal device A for executing the methods 200 and 400 in FIG. 2 and FIG. The unit of the method of execution.
- the units in the communication device 1500 and the above-mentioned other operations and/or functions are used to implement the corresponding processes of the methods 200 and 400 in FIG. 2 and FIG. 4, respectively.
- the transceiver unit 1520 can be used to execute S220, S240, and S270 in the method 200, and the processing unit 1510 can be used to execute S210 and S260 in the method 200.
- the transceiving unit 1520 can be used to execute S420, S440, and S460 in the method 200, and the processing unit 1510 can be used to execute S410 and S450 in the method 400. It should be understood that the specific process for each unit to execute the foregoing corresponding steps has been described in detail in the foregoing method embodiment, and is not repeated here for brevity.
- the transceiver unit 1520 in the communication device 1500 may be an input/output interface or circuit of the chip, and the processing in the communication device 1500
- the unit 1510 may be a processor in a chip.
- the communication device 1500 may further include a processing unit 1510, and the processing unit 1510 may be used to process instructions or data to implement corresponding operations.
- the communication device 1500 may further include a storage unit, and the storage unit may be used to store instructions or data.
- the processing unit 1510 may execute the instructions or data stored in the storage unit to enable the communication device to implement corresponding operations.
- the transceiver unit 1520 in the communication device 1500 in the communication device 1500 may correspond to the transceiver 1610 in the terminal device 1600 shown in FIG. 9, and the storage unit may correspond to the memory in the terminal device 1600 shown in FIG. 9 .
- the transceiver unit 1520 in the communication device 1500 can be implemented through a communication interface (such as a transceiver or an input/output interface), for example, it can correspond to the one shown in FIG. 9
- the transceiver 1610 in the terminal device 1600, the processing unit 1510 in the communication device 1500 may be implemented by at least one processor, for example, may correspond to the processor 1620 in the terminal device 1600 shown in FIG.
- the processing unit 1510 can be implemented by at least one logic circuit.
- the communication device 1500 may correspond to the terminal device B or the terminal device C in the above method embodiment, or be configured in (or used in) the chip or the chip in the terminal device B or the terminal device C.
- the chip in terminal device B may correspond to the terminal device B or the terminal device C in the above method embodiment, or be configured in (or used in) the chip or the chip in the terminal device B or the terminal device C. The chip in terminal device B.
- the communication device 1500 may correspond to the terminal device B or the terminal device C in the methods 200 and 400 according to the embodiments of the present application, and the communication device 1500 may include methods for executing the methods 200 and 400 in FIG. 2 and FIG.
- the units in the communication device 1500 and the above-mentioned other operations and/or functions are used to implement the corresponding processes of the methods 200 and 400 in FIG. 2 and FIG. 4, respectively.
- the transceiver unit 1520 may be used to execute S220, S240, S250, and S270 in the method 200, and the processing unit 1510 may be used to execute S230 in the method 200.
- the transceiving unit 1520 can be used to execute S420, S440, and S460 in the method 200, and the processing unit 1510 can be used to execute S430 in the method 400.
- the transceiver unit 1520 in the communication device 1500 may be an input/output interface or circuit of the chip, and the processing in the communication device 1500
- the unit 1510 may be a processor in a chip.
- the communication device 1500 may further include a processing unit 1510, and the processing unit 1510 may be used to process instructions or data to implement corresponding operations.
- the communication device 1500 may further include a storage unit, and the storage unit may be used to store instructions or data.
- the processing unit 1510 may execute the instructions or data stored in the storage unit to enable the communication device to implement corresponding operations.
- the transceiver unit 1520 in the communication device 1500 in the communication device 1500 may correspond to the transceiver 1610 in the terminal device 1600 shown in FIG. 9, and the storage unit may correspond to the memory in the terminal device 1600 shown in FIG. 9 .
- the transceiver unit 1520 in the communication device 1500 can be implemented through a communication interface (such as a transceiver or an input/output interface), for example, it can correspond to FIG. 9
- the transceiver 1610 in the terminal device 1600 shown in FIG. 1 the processing unit 1510 in the communication device 1500 may be implemented by at least one processor, for example, may correspond to the processor 1620 in the terminal device 1600 shown in FIG.
- the processing unit 1510 in the communication device 1500 may be implemented by at least one logic circuit.
- the communication device 1500 may correspond to the network device in the above method embodiment, or be configured (or used in) the chip in the network device or the chip in the terminal device B.
- the communication device 1500 may correspond to the network device in the method 200 according to the embodiment of the present application, and the communication device 1500 may include a unit for executing the method executed by the network device in the method 200 in FIG. 2.
- the units in the communication device 1500 and the other operations and/or functions described above are respectively intended to implement the corresponding process of the method 200 in FIG. 2.
- the transceiver unit 1520 may be used to execute S250 in the method 200. It should be understood that the specific process for each unit to execute the foregoing corresponding steps has been described in detail in the foregoing method embodiment, and is not repeated here for brevity.
- the transceiver unit 1520 in the communication device 1500 may be an input/output interface or circuit of the chip, and the processing in the communication device 1500
- the unit 1510 may be a processor in a chip.
- the communication device 1500 may further include a processing unit 1510, and the processing unit 1510 may be used to process instructions or data to implement corresponding operations.
- the communication device 1500 may further include a storage unit, and the storage unit may be used to store instructions or data.
- the processing unit 1510 may execute the instructions or data stored in the storage unit to enable the communication device to implement corresponding operations.
- the transceiver unit 1520 in the communication device 1500 in the communication device 1500 may correspond to the transceiver 1710 in the network device 1700 shown in FIG. 10, and the storage unit may correspond to the memory in the network device 1700 shown in FIG. .
- the transceiver unit 1520 in the communication device 1500 can be implemented through a communication interface (such as a transceiver or an input/output interface), for example, it can correspond to the network shown in FIG. 10
- the transceiver 1710 in the device 1700, the processing unit 1510 in the communication device 1500 may be implemented by at least one processor, for example, may correspond to the processor 1720 in the network device 1700 shown in FIG.
- the processing unit 1510 may be implemented by at least one logic circuit.
- FIG. 9 is a schematic structural diagram of a terminal device 1600 provided by an embodiment of the present application.
- the terminal device 1600 can be applied to the system shown in FIG. 1 to perform the functions of the terminal device in the foregoing method embodiment.
- the terminal device 1600 includes a processor 1620 and a transceiver 1610.
- the terminal device 1600 further includes a memory.
- the processor 1620, the transceiver 1610, and the memory can communicate with each other through an internal connection path to transfer control and/or data signals.
- the memory is used to store computer programs, and the processor 1620 is used to execute the information in the memory.
- the computer program controls the transceiver 1610 to send and receive signals.
- the terminal device 1600 may include a bus system 1640, and the transceiver 1610, the processor 1620, and the memory 1630 may transmit information through the bus system.
- the foregoing processor 1620 and the memory may be combined into a processing device, and the processor 1620 is configured to execute program codes stored in the memory to implement the foregoing functions.
- the memory may also be integrated in the processor 1620 or independent of the processor 1620.
- the processor 1620 may correspond to the processing unit in FIG. 8.
- the above transceiver 1610 may correspond to the transceiver unit in FIG. 8.
- the transceiver 1610 may include a receiver (or called a receiver, a receiving circuit) and a transmitter (or called a transmitter, a transmitting circuit).
- the receiver is used to receive signals
- the transmitter is used to transmit signals.
- the terminal device 1600 shown in FIG. 9 can implement various processes involving the terminal device in the method embodiments shown in FIG. 2 and FIG. 4.
- the operations and/or functions of each module in the terminal device 1600 are respectively for implementing the corresponding processes in the foregoing method embodiments.
- the above-mentioned processor 1620 can be used to execute the actions described in the previous method embodiments implemented by the terminal device, and the transceiver 1610 can be used to execute the terminal device described in the previous method embodiments to send or receive from the network device action.
- the transceiver 1610 can be used to execute the terminal device described in the previous method embodiments to send or receive from the network device action.
- the aforementioned terminal device 1600 may further include a power source for providing power to various devices or circuits in the terminal device.
- the terminal device 1600 may also include one or more of an input unit, a display unit, an audio circuit, a camera, and a sensor.
- the audio circuit may also include a speaker, Microphone etc.
- FIG. 10 is a schematic structural diagram of a network device 1700 provided by an embodiment of the present application.
- the network device 1700 can be applied to the system shown in FIG. 1 to perform the functions of the terminal device in the foregoing method embodiment.
- the network device 1700 includes a processor 1720 and a transceiver 1710.
- the network device 1700 further includes a memory.
- the processor 1720, the transceiver 1710, and the memory may communicate with each other through an internal connection path to transfer control and/or data signals.
- the memory is used to store computer programs, and the processor 1720 is used to execute the information in the memory.
- the computer program controls the transceiver 1710 to send and receive signals.
- the transceiver 1710 of the network device 1700 may include an antenna and/or a radio frequency circuit.
- the network device 1700 shown in FIG. 10 can implement various processes involving the network device in the method embodiments shown in FIG. 2 and FIG. 4.
- the operations and/or functions of each module in the network device 1700 are respectively for implementing the corresponding processes in the foregoing method embodiments.
- network device 1700 shown in FIG. 10 is only a possible architecture of the network device, and should not constitute any limitation to this application.
- the method provided in this application can be applied to network devices of other architectures.
- network equipment including CU, DU, and AAU. This application does not limit the specific architecture of the network device.
- An embodiment of the present application also provides a processing device, including a processor and an interface; the processor is configured to execute the method in any of the foregoing method embodiments.
- the aforementioned processing device may be one or more chips.
- the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), or It is a central processor unit (CPU), it can also be a network processor (NP), it can also be a digital signal processing circuit (digital signal processor, DSP), or it can be a microcontroller (microcontroller unit). , MCU), it can also be a programmable logic device (PLD) or other integrated chips.
- FPGA field programmable gate array
- ASIC application specific integrated circuit
- SoC system on chip
- CPU central processor unit
- NP network processor
- DSP digital signal processing circuit
- microcontroller unit microcontroller unit
- MCU programmable logic device
- PLD programmable logic device
- each step of the above method can be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software.
- the steps of the method disclosed in combination with the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
- the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
- the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
- the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability.
- the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
- the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components .
- DSP digital signal processor
- ASIC application specific integrated circuit
- FPGA field programmable gate array
- the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
- the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
- the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
- the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
- the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
- the memory in the embodiments of the present application may be a volatile memory or a 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 (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), Electrically erasable programmable read-only memory (EPROM, EEPROM) or flash memory.
- the volatile memory may be random access memory (RAM), which is used as an external cache.
- RAM random access memory
- static random access memory static random access memory
- dynamic RAM dynamic RAM
- DRAM dynamic random access memory
- 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 serial DRAM, SLDRAM
- direct rambus RAM direct rambus RAM
- the present application also provides a computer program product.
- the computer program product includes: computer program code.
- the computer program code When the computer program code is executed by one or more processors, the computer program The device executes the method in the embodiment shown in FIG. 2 and FIG. 4.
- the present application also provides a computer-readable storage medium, the computer-readable storage medium stores program code, and when the program code is run by one or more processors, the processing The device of the processor executes the method in the embodiment shown in FIG. 2 and FIG. 4.
- the present application also provides a system, which includes the aforementioned one or more network devices.
- the system may also include one or more of the aforementioned terminal devices.
- the network equipment in each of the above-mentioned device embodiments corresponds completely to the network equipment or terminal equipment in the terminal equipment and method embodiments, and the corresponding modules or units execute the corresponding steps.
- the communication unit executes the receiving or the terminal equipment in the method embodiments.
- the processing unit executes the functions of specific units, refer to the corresponding method embodiments.
- the computer may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
- software it can be implemented in the form of a computer program product in whole or in part.
- the computer program product includes one or more computer instructions.
- the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
- the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
- the computer instructions may be transmitted from a website, computer, server, or data center.
- the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
- the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disc), SSD)) etc.
- the network equipment in each of the above-mentioned device embodiments corresponds completely to the network equipment or terminal equipment in the terminal equipment and method embodiments, and the corresponding modules or units execute the corresponding steps.
- the communication unit executes the receiving or the terminal equipment in the method embodiments.
- the processing unit executes the processing unit (processor).
- the processing unit for the function of the specific unit, please refer to the corresponding method embodiment. Among them, there may be one or more processors.
- component used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution.
- the component may be, but is not limited to, a process, a processor, an object, an executable file, an execution thread, a program, and/or a computer running on a processor.
- the application running on the computing device and the computing device can be components.
- One or more components may reside in processes and/or threads of execution, and components may be located on one computer and/or distributed among two or more computers.
- these components can be executed from various computer readable media having various data structures stored thereon.
- the component can be based on, for example, a signal having one or more data packets (e.g. data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through a signal) Communicate through local and/or remote processes.
- a signal having one or more data packets (e.g. data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through a signal) Communicate through local and/or remote processes.
- the disclosed system, device, and method can be implemented in other ways.
- the device embodiments described above are only illustrative.
- the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
- the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
- the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
- each functional unit may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
- software When implemented by software, it can be implemented in the form of a computer program product in whole or in part.
- the computer program product includes one or more computer instructions (programs).
- programs When the computer program instructions (programs) are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
- the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
- the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
- the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
- the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
- the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
- the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
- the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
- the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .
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Abstract
本申请提供了一种通信方法。该方法包括:第一终端设备确定第一非连续接收DRX的第一配置信息,该第一DRX用于控制该第一终端设备的接收侧行链路的数据;该第一终端设备向第二终端设备发送该第一配置信息,该第二终端设备为与该第一终端设备建立了侧行链路连接的终端设备。以期减小终端设备的功率消耗。
Description
本申请要求于2020年3月10日提交中国国家知识产权局、申请号为202010162922.8、发明名称为“无线通信方法和通信装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及通信领域,并且更具体地,涉及一种无线通信方法和通信装置。
车联网(vehicle to everything,V2X)被认为是物联网体系中最有产业潜力、市场需求最为明确的领域之一,具有应用空间广、产业潜力大、社会效益强的特点,对促进汽车和信息通信产业创新发展,构建汽车和交通服务新模式新业态,推动自动驾驶技术创新和应用,提高交通效率和安全水平具有重要意义。智能交通***的发展推动了车联网(internet of vehicle,IoV)从仅支持车载信息服务的传统车联网向支持车联一切(vehicle to everything,V2X)服务的下一代车联网发展。V2X***的应用包括:车辆与车辆(vehicle to vehicle,V2V),车辆与路边基础设施(vehicle to infrastructure,V2I),车辆与行人(vehicle to pedestrian,V2P)或车辆与网络(vehicle to network,V2N)等。V2X***的应用将改善驾驶安全性、减少拥堵和车辆能耗、提高交通效率和车载娱乐信息等。第三代合作伙伴计划(the 3
rd generation partnership project,3GPP)在长期演进(long term evolution,LTE)***中为V2X制定了相关的通信标准。V2X在新空口(new radio,NR)***中也同样是讨论的热点课题,NR-V2X需要支持更复杂多样的场景,例如单播、广播和组播的场景。随着应用场景以及业务需求的扩大,对于V2X中设备的功率消耗问题有了更高的要求。
发明内容
本申请提供了一种无线通信方法和通信装置,以期减小终端设备的功率消耗。
第一方面,提供了一种无线通信方法,该方法可以由第一终端设备或配置于(或用于)第一终端设备的模块(如芯片)执行,以下以该方法由第一终端设备执行为例进行说明。
该方法包括:第一终端设备确定第一非连续接收DRX的第一配置信息,所述第一DRX用于控制所述第一终端设备的接收侧行链路的数据;所述第一终端设备向第二终端设备发送所述第一配置信息,所述第二终端设备为与所述第一终端设备建立了侧行链路连接的终端设备。
根据本申请的方案,由DRX操作的接收设备根据自身建立的侧行链路连接的情况,确定用于侧行链路的DRX操作的配置信息,能够保证自身通信可靠性的同时,减小终端设备的功率消耗。DRX操作的接收设备通知发送设备该接收设备用于侧行链路的DRX的配置信息,以使该DRX操作的接收设备和发送设备对该DRX操作达成共识,保证数据传 输的可靠性。
结合第一方面,在第一方面的某些实现方式中,所述第一配置信息包括以下一项或多项信元:所述第一DRX的周期、所述第一DRX的起始偏移量、所述第一DRX的时隙偏移量、第一计时器的信息或第二计时器的信息,示例性的,所述第一计时器的信息用于配置每个所述第一DRX周期内DRX的激活时长,所述第二计时器的信息用于配置所述第一终端设备接收到一个侧行链路传输后DRX激活时间的持续时长。
根据申请的方案,DRX操作的接收设备通知发送设备该接收设备用于侧行链路的DRX的周期、起始偏移量、计时器相关的信息,以使该DRX操作的接收设备和发送设备对该DRX操作达成共识,保证数据传输的可靠性。
结合第一方面,在第一方面的某些实现方式中,所述第一终端设备确定第一非连续接收DRX的第一配置信息,包括:所述第一终端设备从第一DRX的一个或多个配置信息中确定第一配置信息,示例性的,所述一个或多个配置信息为所述第一终端设备***预设的或网络设备为所述第一终端设备配置的。
结合第一方面,在第一方面的某些实现方式中,所述第一终端设备从第一DRX的一个或多个配置信息中确定第一配置信息,包括:
所述第一终端设备根据侧行链路业务的QoS需求从侧行链路DRX的一个或多个配置信息中确定第一配置信息。
根据申请的方案,DRX操作的接收设备根据侧行链路业务的QoS需求确定用于侧行链路的DRX的配置信息,能够在满足数据传输的需求的情况下,达到减小功率消耗的目的。
结合第一方面,在第一方面的某些实现方式中,所述方法还包括:
所述第一终端设备接收所述第二终端设备发送的所述第一DRX的第二配置信息,所述第二配置信息包括混合自动重传请求HARQ相关的配置信息。
根据本申请的方案,由用于侧行链路的DRX操作的发送设备通知接收设备与该侧行链路的DRX操作中HARQ相关的配置信息,可以根据负载情况确定合适的计时器时长,进而达到节能的目的。
结合第一方面,在第一方面的某些实现方式中,所述第一终端设备在满足以下一项或多项的情况下开始执行所述第一DRX操作:
发送所述第一配置信息后;
接收到所述第二终端设备接收第一配置信息的确认反馈后;
向所述第二终端设备发送第一指示信息后,所述第一指示信息用于指示开始执行所述第一DRX;
接收到所述第二终端设备发送的第二配置信息后;
向所述第二终端设备发送接收第二配置信息的确认反馈后;
示例性的,所述第二配置信息包括HARQ相关的配置信息。
根据本申请的方案,对开始执行用于侧行链路的DRX操作的时刻进行定义,能够使得DRX操作的接收设备和发送设备对DRX操作的起始时刻达成共识,保证数据传输的可靠性。
结合第一方面,在第一方面的某些实现方式中,所述第二配置信息包括第三计时器的 信息和/或第四计时器的信息,示例性的,所述第三计时器的信息用于指示距离同一HARQ进程的下一次数据重传的最小时长,所述第四计时器的信息用于指示检测和/或接收重传数据的最大时长。
根据本申请的方案,由用于侧行链路的DRX操作的发送设备通知接收设备与该侧行链路的DRX操作中HARQ相关的配置信息,可以根据负载情况确定合适的计时器时长,进而达到节能的目的。
结合第一方面,在第一方面的某些实现方式中,所述第一终端设备将所述第二配置信息保存在所述第二终端设备的上下文信息中。
结合第一方面,在第一方面的某些实现方式中,所述第一终端设备在开始执行所述第一DRX操作后,在以下一种或多种情况下处于DRX激活时间:第一计时器运行期间、第二计时器运行期间、第四计时器运行期间、需要接收侧行链路HARQ反馈的时刻、在数据重传资源的时间范围内、等待接收信道状态信息CSI报告期间、接收到单播建立请求且在单播建立完成前、或接收到单播建立请求后。
根据本申请的方案,明确DRX的激活时间,能够使得DRX操作的接收设备和发送设备对DRX的激活时间达成共识,保证数据传输的可靠性。
结合第一方面,在第一方面的某些实现方式中,所述第一终端设备向第二终端设备发送所述第一配置信息,包括:所述第一终端设备向多个第二终端设备发送所述第一配置信息;以及,所述第一终端设备接收所述第二终端设备发送的所述第一DRX的第二配置信息,包括:所述第一终端设备接收所述多个第二终端设备发送的多个第二配置信息,所述多个第二配置信息与所述多个第二终端设备一一对应,示例性的,所述第二配置信息具体包括所对应的所述第二终端设备的HARQ进程相关的配置信息。
根据本申请的方案,由DRX操作的接收设备根据自身建立的侧行链路连接的情况,针对多个发送设备维护一个公用的用于侧行链路的DRX操作的配置信息,
结合第一方面,在第一方面的某些实现方式中,在所述多个第二终端设备中的两个第二终端设备的标识均为第一标识的情况下,所述方法还包括:所述第一终端设备向所述两个第二终端设备中的一个第二终端设备发送第二指示信息,所述第二指示信息用于指示所述一个第二终端设备更新所述标识,或者,所述第一终端设备将与所述两个第二终端设备中的一个第二终端设备通信时所采用的所述第一终端设备的标识更新为第二标识;所述第一终端设备向所述一个第二终端设备发送第三指示信息,所述第三指示信息用于指示所述第一终端设备的标识更新为第二标识。
根据上述方案,能够避免出现因标识冲突使得终端设备无法确定数据的实际的发送设备或接收设备的情况,能够提高通信过程的可靠性。
第二方面,提供了一种的通信方法,该方法可以由第二终端设备或配置于(或用于)第二终端设备的模块(如芯片)执行,以下以该方法由第二终端设备执行为例进行说明。
该方法包括:第二终端设备接收第一终端设备发送的第一非连续接收DRX的第一配置信息,所述第一DRX用于控制所述第一终端设备的接收侧行链路的数据;所述第二终端设备根据所述第一配置信息向所述第一终端设备发送侧行链路的数据。
结合第二方面,在第二方面的某些实现方式中,所述第一配置信息包括以下一项或多项信元:所述第一DRX的周期、所述第一DRX的起始偏移量、所述第一DRX的时隙偏 移量、第一计时器的信息或第二计时器的信息,示例性的,所述第一计时器的信息用于配置每个所述第一DRX周期内DRX的激活时长,所述第二计时器的信息用于配置所述第一终端设备接收到调度新传数据的控制信息后DRX的激活时长。
结合第二方面,在第二方面的某些实现方式中,所述方法还包括:所述第二终端设备向所述第一终端设备发送所述第一DRX的第二配置信息,所述第二配置信息包括混合自动重传请求HARQ相关的配置信息。
结合第二方面,在第二方面的某些实现方式中,所述第二配置信息包括第三计时器的信息和/或第四计时器的信息,示例性的,所述第三计时器的信息用于指示同一HARQ进程中距离下一次数据重传的最小时长,所述第四计时器的信息用于指示检测和/或接收重传数据的最大时长。
结合第二方面,在第二方面的某些实现方式中,所述第二配置信息为所述第二终端设备的***预设的或网络设备为所述第二终端设备配置的,或者,所述第二配置信息为所述第二终端设备根据所述第二终端设备的相关信息确定的,所述相关信息包括信道忙碌率CBR、速度、业务的QoS需求中的一项或多项。
结合第二方面,在第二方面的某些实现方式中,所述第二终端设备将所述第一配置信息保存在所述第一终端设备的上下文信息中。
结合第二方面,在第二方面的某些实现方式中,所述方法还包括:
所述第二终端设备在满足以下一项或多项的情况下开始执行所述第一DRX操作:
接收到所述第一配置信息后;
发送所述第二终端设备接收第一配置信息的确认反馈后;
接收到第一指示信息后,所述第一指示信息用于指示激活所述第一DRX;
向所述第一终端设备发送的第二配置信息后;
接收到所述第一终端设备发送的接收第二配置信息的确认反馈后;
示例性的,所述第二配置信息包括HARQ相关的配置信息。结合第二方面,在第二方面的某些实现方式中,所述方法还包括:
所述第二终端设备确定所述第一终端设备在以下一种或多种情况下处于DRX激活时间,所述第二终端设备可以在所述第一终端设备的所述接收状态向所述第一终端设备发送数据:
第一计时器运行期间、第二计时器运行期间、第四计时器运行期间、需要接收侧行链路HARQ反馈的时刻、在数据重传资源的时间范围内、等待接收信道状态信息CSI报告期间、接收到单播建立请求且在单播建立完成前、或开始所述第一DRX操作前。
结合第二方面,在第二方面的某些实现方式中,所述方法还包括:所述第二终端设备接收所述第一终端设备发送的第二指示信息,所述第二指示信息用于指示所述第二终端设备更新标识,或者,所述第二终端设备接收所述第一终端设备发送的第三指示信息,所述第三指示信息用于指示所述第一终端设备的标识更新为第二标识。
结合第二方面,在第二方面的某些实现方式中,所述第二终端设备向网络设备发送所述第一配置信息和/或所述第二配置信息。
第三方面,提供了一种的通信方法,该方法可以由网络设备或配置于(或用于)网络设备的模块(如芯片)执行,以下以该方法由网络设备执行为例进行说明。
该方法包括:网络设备接收第二终端设备发送第一配置信息和/或第二配置信息,所述第一配置信息和/或第二配置信息为第一DRX的配置信息,所述第一DRX用于所述第一终端设备的接收侧行链路的数据,所述第一配置信息为所述第一终端设备确定的所述第一DRX的配置信息,所述第二配置信息为所述第二终端设备确定的所述第一DRX的配置信息;所述网络设备向所述第二终端设备发送第四指示信息,所述第四指示信息用于指示第一时频资源,所述第一时频资源为所述第二终端设备用于向所述第一终端设备发送数据的资源,所述第一时频资源在所述第一终端设备的所述第一DRX激活时间内。
结合第三方面,在第三方面的某些实现方式中,所述第一配置信息包括以下一项或多项信元:所述第一DRX的周期、所述第一DRX的起始位置偏移量、第一计时器的信息或第二计时器的信息,示例性的,所述第一计时器的信息用于指示每个所述第一DRX周期内DRX的激活时长,所述第二计时器的信息用于指示所述第一终端设备接收到调度新传数据的控制信息后DRX的激活时长。
结合第三方面,在第三方面的某些实现方式中,所述第二配置信息包括第三计时器的信息和/或第四计时器的信息,示例性的,所述第三计时器的信息用于指示同一HARQ进程中距离下一次数据重传的最小时长,所述第四计时器的信息用于指示中检测和/或接收重传数据的最大时长。
结合第三方面,在第三方面的某些实现方式中,所述方法还包括:所述网络设备向所述第一终端设备发送一个或多个配置信息,所述一个或多个配置信息中包括所述第一配置信息;和/或,所述网络设备向所述第二终端设备发送一个或多个第四配置信息,所述一个或多个第四配信息中包括所述第二配置信息;
第四方面,提供了一种的通信方法,该方法可以由终端设备或配置于(或用于)终端设备的模块(如芯片)执行,以下以该方法由终端设备执行为例进行说明。
该方法包括:终端设备根据广播业务或组播业务的目的标识,确定用于承载所述广播业务或组播业务的数据的第一资源;第一终端设备在所述第一资源上接收或发送所述广播业务或组播业务的数据。
根据本申请的方案,能够实现接收设备根据广播或组播的源设备标识确定广播或组播信息的资源位置,能够避免终端设备在所有侧行链路资源上监听广播或组播信息,达到终端设备节能的目的。
结合第四方面,在第四方面的某些实现方式中,所述第一终端设备根据广播业务或组播业务的目的标识,确定用于承载所述广播业务或组播业务的数据的第一资源,包括:
所述第一终端设备根据广播业务或组播业务的目的标识和第三映射关系,确定用于承载所述广播业务或组播业务的数据的第一资源,所述第三映射关系包括以下一种或多种:
目的标识mod N1=(时域资源编号/K1)mod M1;
目的标识mod N2=(频域资源编号/K2)mod M2,
其中,mod表示取模值,N1、N2、K1、K2、M1或M2中的一项或多项为协议预定义的、网络设备通过RRC专用消息或网络设备通过***消息配置的参数值。
第五方面,提供了一种通信装置,该装置包括:处理单元,用于确定第一非连续接收DRX的第一配置信息,所述第一DRX用于控制第一终端设备的接收侧行链路的数据;收发单元,用于向第二终端设备发送所述第一配置信息,所述第二终端设备为与所述第一终 端设备建立了侧行链路连接的终端设备。
结合第五方面,在第五方面的某些实现方式中,所述第一配置信息包括以下一项或多项信元:所述第一DRX的周期、所述第一DRX的起始偏移量、所述第一DRX的时隙偏移量、第一计时器的信息或第二计时器的信息,示例性的,所述第一计时器的信息用于配置每个所述第一DRX周期内DRX的激活时长,所述第二计时器的信息用于配置所述第一终端设备接收到一个侧行链路传输后DRX激活时间的持续时长。
结合第五方面,在第五方面的某些实现方式中,所述处理单元具体用于从第一DRX的一个或多个配置信息中确定所述第一配置信息,示例性的,所述一个或多个配置信息为所述第一终端设备***预设的或网络设备为所述第一终端设备配置的。
结合第五方面,在第五方面的某些实现方式中,所述处理单元具体用于根据侧行链路业务的QoS需求从侧行链路DRX的一个或多个配置信息中确定所述第一配置信息。
结合第五方面,在第五方面的某些实现方式中,包括:所述收发单元,用于接收所述第二终端设备发送的所述第一DRX的第二配置信息,所述第二配置信息包括混合自动重传请求HARQ相关的配置信息。
结合第五方面,在第五方面的某些实现方式中,所述第一终端设备在满足以下一项或多项的情况下开始执行所述第一DRX操作:
发送所述第一配置信息后;
接收到所述第二终端设备接收第一配置信息的确认反馈后;
向所述第二终端设备发送第一指示信息后,所述第一指示信息用于指示开始执行所述第一DRX;
接收到所述第二终端设备发送的第二配置信息后;
向所述第二终端设备发送接收第二配置信息的确认反馈后;
示例性的,所述第二配置信息包括HARQ相关的配置信息。
结合第五方面,在第五方面的某些实现方式中,所述第二配置信息包括第三计时器的信息和/或第四计时器的信息,示例性的,所述第三计时器的信息用于指示距离同一HARQ进程的下一次数据重传的最小时长,所述第四计时器的信息用于指示检测和/或接收重传数据的最大时长。
结合第五方面,在第五方面的某些实现方式中,所述处理单元用于将所述第二配置信息保存在所述第二终端设备的上下文信息中。
结合第五方面,在第五方面的某些实现方式中,所述第一终端设备在开始执行所述第一DRX操作后,在以下一种或多种情况下处于DRX激活时间:第一计时器运行期间、第二计时器运行期间、第四计时器运行期间、需要接收侧行链路HARQ反馈的时刻、在数据重传资源的时间范围内、等待接收信道状态信息CSI报告期间、接收到单播建立请求且在单播建立完成前、或接收到单播建立请求后。
结合第五方面,在第五方面的某些实现方式中,所述收发单元具体用于向多个所述第二终端设备发送所述第一配置信息;以及,所述收发单元具体用于接收所述多个所述第二终端设备发送的多个所述第二配置信息,所述多个第二配置信息与所述多个所述第二终端设备一一对应,示例性的,所述第二配置信息具体包括所对应的所述第二终端设备的HARQ进程相关的配置信息。
结合第五方面,在第五方面的某些实现方式中,在所述多个所述第二终端设备中的两个第二终端设备的标识均为第一标识的情况下,
所述收发单元还用于向所述两个第二终端设备中的一个第二终端设备发送第二指示信息,所述第二指示信息用于指示所述一个第二终端设备更新所述标识,或者,
所述处理单元还用于将与所述两个第二终端设备中的一个第二终端设备通信时所采用的所述第一终端设备的标识更新为第二标识;
所述收发单元还用于向所述一个第二终端设备发送第三指示信息,所述第三指示信息用于指示所述第一终端设备的标识更新为第二标识。
第六方面,提供了一种通信装置,该装置包括:收发单元,用于接收第一终端设备发送的第一非连续接收DRX的第一配置信息,所述第一DRX用于控制所述第一终端设备的接收侧行链路的数据;处理单元,用于根据所述第一配置信息向所述第一终端设备发送侧行链路的数据。
结合第六方面,在第六方面的某些实现方式中,所述第一配置信息包括以下一项或多项信元:所述第一DRX的周期、所述第一DRX的起始偏移量、所述第一DRX的时隙偏移量、第一计时器的信息或第二计时器的信息,示例性的,所述第一计时器的信息用于配置每个所述第一DRX周期内DRX的激活时长,所述第二计时器的信息用于配置所述第一终端设备接收到调度新传数据的控制信息后DRX的激活时长。
结合第六方面,在第六方面的某些实现方式中,包括:所述收发单元还用于向第一终端设备发送所述第一DRX的第二配置信息,所述第二配置信息包括混合自动重传请求HARQ相关的配置信息。
结合第六方面,在第六方面的某些实现方式中,所述第二配置信息包括第三计时器的信息和/或第四计时器的信息,示例性的,所述第三计时器的信息用于指示同一HARQ进程中距离下一次数据重传的最小时长,所述第四计时器的信息用于指示检测和/或接收重传数据的最大时长。
结合第六方面,在第六方面的某些实现方式中,所述第二配置信息为第二终端设备的***预设的或网络设备为所述第二终端设备配置的,或者,所述第二配置信息为所述第二终端设备根据所述第二终端设备的相关信息确定的,所述相关信息包括信道忙碌率CBR、速度、业务的QoS需求中的一项或多项。
结合第六方面,在第六方面的某些实现方式中,包括:所述处理单元还用于将所述第一配置信息保存在所述第一终端设备的上下文信息中。
结合第六方面,在第六方面的某些实现方式中,所述第二终端设备在满足以下一项或多项的情况下开始执行所述第一DRX操作:
接收到所述第一配置信息后;
发送所述第二终端设备接收第一配置信息的确认反馈后;
接收到第一指示信息后,所述第一指示信息用于指示激活所述第一DRX;
向所述第一终端设备发送的第二配置信息后;
接收到所述第一终端设备发送的接收第二配置信息的确认反馈后;
示例性的,所述第二配置信息包括HARQ相关的配置信息。
结合第六方面,在第六方面的某些实现方式中,包括:所述处理单元还用于确定所述 第一终端设备在以下一种或多种情况下处于DRX激活时间,所述第二终端设备可以在所述第一终端设备的所述接收状态向所述第一终端设备发送数据:第一计时器运行期间、第二计时器运行期间、第四计时器运行期间、需要接收侧行链路HARQ反馈的时刻、在数据重传资源的时间范围内、等待接收信道状态信息CSI报告期间、接收到单播建立请求且在单播建立完成前、或开始所述第一DRX操作前。
结合第六方面,在第六方面的某些实现方式中,包括:所述收发单元还用于接收所述第一终端设备发送的第二指示信息,所述第二指示信息用于指示所述第二终端设备更新标识,或者,所述收发单元还用于接收所述第一终端设备发送的第三指示信息,所述第三指示信息用于指示所述第一终端设备的标识更新为第二标识。
结合第六方面,在第六方面的某些实现方式中,所述第二终端设备向网络设备发送所述第一配置信息和/或所述第二配置信息。
第七方面,提供了一种通信装置,该装置包括:收发单元,用于接收第二终端设备发送第一配置信息和/或第二配置信息,所述第一配置信息和/或第二配置信息为第一DRX的配置信息,所述第一DRX用于所述第一终端设备的接收侧行链路的数据,所述第一配置信息为所述第一终端设备确定的所述第一DRX的配置信息,所述第二配置信息为所述第二终端设备确定的所述第一DRX的配置信息;处理单元,用于确定第一时频资源,所述第一时频资源为所述第二终端设备用于向所述第一终端设备发送数据的资源,所述第一时频资源在所述第一终端设备的所述第一DRX激活时间内;所述收发单元还用于向所述第二终端设备发送第四指示信息,所述第四指示信息用于指示第一时频资源。
结合第七方面,在第七方面的某些实现方式中,所述第一配置信息包括以下一项或多项信元:所述第一DRX的周期、所述第一DRX的起始位置偏移量、第一计时器的信息或第二计时器的信息,示例性的,所述第一计时器的信息用于指示每个所述第一DRX周期内DRX的激活时长,所述第二计时器的信息用于指示所述第一终端设备接收到调度新传数据的控制信息后DRX的激活时长。
结合第七方面,在第七方面的某些实现方式中,所述第二配置信息包括第三计时器的信息和/或第四计时器的信息,示例性的,所述第三计时器的信息用于指示同一HARQ进程中距离下一次数据重传的最小时长,所述第四计时器的信息用于指示中检测和/或接收重传数据的最大时长。
第八方面,提供了一种通信装置,该装置包括:包括:处理单元,用于根据广播业务或组播业务的目的标识,确定用于承载所述广播业务或组播业务的数据的第一资源;收发单元,在所述第一资源上接收或发送所述广播业务或组播业务的数据。
结合第八方面,在第八方面的某些实现方式中,包括:所述处理单元具体用于根据广播业务或组播业务的目的标识和第三映射关系,确定用于承载所述广播业务或组播业务的数据的第一资源,所述第三映射关系包括以下一种或多种:
目的标识mod N1=(时域资源编号/K1)mod M1;
目的标识mod N2=(频域资源编号/K2)mod M2,
其中,mod表示取模值,N1、N2、K1、K2、M1或M2中的一项或多项为协议预定义的、网络设备通过RRC专用消息或网络设备通过***消息配置的参数值。
第九方面,提供了一种通信装置,包括处理器。该处理器与存储器耦合,可用于执行 第一方面、第二方面或第四方面以及第一方面、第二方面或第四方面中任一种可能实现方式中的方法。可选地,该通信装置还包括存储器。可选地,该通信装置还包括通信接口,处理器与通信接口耦合。
在一种实现方式中,该通信装置为第一终端设备或第二终端设备。当该通信装置为终端设备或第二终端设备时,所述通信接口可以是收发器,或,输入/输出接口。
在另一种实现方式中,该通信装置为配置于第一终端设备或第二终端设备中的芯片。当该通信装置为配置于第一终端设备或第二终端设备中的芯片时,所述通信接口可以是输入/输出接口。
可选地,所述收发器可以为收发电路。可选地,所述输入/输出接口可以为输入/输出电路。
第十方面,提供了一种通信装置,包括处理器。该处理器与存储器耦合,可用于执行存储器中的指令,以实现上述第三方面以及第三方面中任一种可能实现方式中的方法。可选地,该通信装置还包括存储器。可选地,该通信装置还包括通信接口,处理器与通信接口耦合。
在一种实现方式中,该通信装置为网络设备。当该通信装置为网络设备时,所述通信接口可以是收发器,或,输入/输出接口。
在另一种实现方式中,该通信装置为配置于网络设备中的芯片。当该通信装置为配置于网络设备中的芯片时,所述通信接口可以是输入/输出接口。
可选地,所述收发器可以为收发电路。可选地,所述输入/输出接口可以为输入/输出电路。
第十一方面,提供了一种处理器,包括:输入电路、输出电路和处理电路。该处理电路用于通过该输入电路接收信号,并通过该输出电路发射信号,使得该处理器执行第一方面至第四方面以及第一方面至第四方面中任一种可能实现方式中的方法。
在具体实现过程中,上述处理器可以为一个或多个芯片,输入电路可以为输入管脚,输出电路可以为输出管脚,处理电路可以为晶体管、门电路、触发器和各种逻辑电路等。输入电路所接收的输入的信号可以是由例如但不限于接收器接收并输入的,输出电路所输出的信号可以是例如但不限于输出给发射器并由发射器发射的,且输入电路和输出电路可以是同一电路,该电路在不同的时刻分别用作输入电路和输出电路。本申请实施例对处理器及各种电路的具体实现方式不做限定。
第十二方面,提供了一种处理装置,包括处理器和存储器。该处理器用于读取存储器中存储的指令,并可通过接收器接收信号,通过发射器发射信号,以执行第一方面至第四方面以及第一方面至第四方面中任一种可能实现方式中的方法。
可选地,该处理器为一个或多个,该存储器为一个或多个。
可选地,该存储器可以与该处理器集成在一起,或者该存储器与处理器分离设置。
在具体实现过程中,存储器可以为非瞬时性(non-transitory)存储器,例如只读存储器(read only memory,ROM),其可以与处理器集成在同一块芯片上,也可以分别设置在不同的芯片上,本申请实施例对存储器的类型以及存储器与处理器的设置方式不做限定。
应理解,相关的数据交互过程例如发送指示信息可以为从处理器输出指示信息的过程,接收能力信息可以为处理器接收输入能力信息的过程。具体地,处理器输出的数据可以输 出给发射器,处理器接收的输入数据可以来自接收器。其中,发射器和接收器可以统称为收发器。
上述第十二方面中的处理装置可以是一个或多个芯片。该处理装置中的处理器可以通过硬件来实现也可以通过软件来实现。当通过硬件实现时,该处理器可以是逻辑电路、集成电路等;当通过软件来实现时,该处理器可以是一个通用处理器,通过读取存储器中存储的软件代码来实现,该存储器可以集成在处理器中,可以位于该处理器之外,独立存在。
第十三方面,提供了一种计算机程序产品,该计算机程序产品包括:计算机程序(也可以称为代码,或指令),当该计算机程序被运行时,使得计算机执行上述第一方面至第四方面以及第一方面至第四方面中任一种可能实现方式中的方法。
第十四方面,提供了一种计算机可读介质,该计算机可读介质存储有计算机程序(也可以称为代码,或指令)当其在计算机上运行时,使得计算机执行上述第一方面至第四方面以及第一方面至第四方面中任一种可能实现方式中的方法。
第十五方面,提供了一种通信***,其包括前述的第一终端设备、第二终端设备或网络设备中的至少一个设备。
图1是适用于本申请实施例的通信***的一示意性架构图。
图2是适用于本申请的通信***的另一示意性架构图。
图3是本申请实施例无线通信方法的一例示意图。
图4是本申请实施例无线通信方法的另一示意性流程图。
图5是本申请实施例无线通信方法的另一例示意图。
图6是本申请实施例提供的时域资源编号的一例示意图。
图7是本申请实施例提供的时域资源编号的另一例示意图。
图8是本申请的通信装置的一例的示意性框图。
图9是本申请的终端设备的一例的示意性结构图。
图10是本申请的网络设备的一例的示意性结构图。
下面将结合附图,对本申请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:长期演进(long term evolution,LTE)***、LTE频分双工(frequency division duplex,FDD)***、LTE时分双工(time division duplex,TDD)、通用移动通信***(universal mobile telecommunication system,UMTS)、全球互联微波接入(worldwide interoperability for microwave access,WiMAX)通信***、第五代(5th generation,5G)***或新无线(new radio,NR)***,车到其它设备(Vehicle-to-X V2X),其中V2X可以包括车到互联网(vehicle to network,V2N)、车到车(vehicle to-Vehicle,V2V)、车到基础设施(vehicle to infrastructure,V2I)、车到行人(vehicle to pedestrian,V2P)等、车间通信长期演进技术(Long Term Evolution-Vehicle,LTE-V)、车联网、机器类通信(machine type communication,MTC)、物联网(Internet of Things,IoT)、机器间通信长期演进技术(Long Term Evolution-Machine, LTE-M),机器到机器(Machine to Machine,M2M),非地面通信(non-terrestrial network,NTN)***或者未来演进的其它通信***等。
图1分别是适用于本申请实施例的通信***100的一示意图。
本适用于申请实施例的通信***可以包括至少两个终端设备,如图1所示的通信***100中的终端设备102、103、104、105。本适用于申请实施例的通信***还可以包括至少一个网络设备,如图1所示的无线通信***100中的网络设备101。该至少两个终端设备之间可以建立侧行链路(sidelink,SL),如图1中的链路120、121、122、123、124,建立了侧行链路的终端设备之间可以直接进行通信。其中,一个终端设备可以与一个或多个终端设备建立侧行链路,终端设备可以执行非连续接收(discontinuous reception,DRX)操作,该终端设备可以在DRX激活时间内接收与该终端设备建立了侧行链路的一个或多个终端设备发送的数据。该通信***中的终端设备中也可以与网络设备建立无线连接进行数据通信,如图1所示的终端设备102、103分别于网络设备建立了无线链路110、111。该通信***中的终端设备也可以不与网路设备建立无线链路,如图1所示的终端设备104、105,本申请对此不作限定。
本申请实施例中的终端设备也可以称为用户设备(user equipment,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。本申请的实施例中的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、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、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、个人数字助理(personal digital assistant,PDA)、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、车载通信装置,车载通信处理芯片,可穿戴设备,5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network,PLMN)中的终端设备等。
其中,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。
此外,终端设备还可以是物联网(internet of things,IoT)***中的终端设备。IoT是未来信息技术发展的重要组成部分,其主要技术特点是将物品通过通信技术与网络连接,从而实现人机互连,物物互连的智能化网络。
应理解,本申请对于终端设备的具体形式不作限定。
本申请实施例中的技术方案还可以应用于网络设备。该网络设备包括但不限于:演进 型节点B(evolved Node B,eNB)、无线网络控制器(radio network controller,RNC)、路边单元(road side unit,RSU)、节点B(node B,NB)、基站控制器(base station controller,BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如,home evolved nodeB,或home node B,HNB)、基带单元(baseband unit,BBU),无线保真(wireless fidelity,WIFI)***中的接入点(access point,AP)、无线中继节点、无线回传节点、传输点(transmission point,TP)或者发送接收点(transmission and reception point,TRP)等,还可以为5G(如NR)***中的gNB或传输点(TRP或TP),或者,5G***中的基站的一个或一组(包括多个天线面板)天线面板,或者,还可以为构成gNB或传输点的网络节点,如基带单元(BBU),或,分布式单元(distributed unit,DU)等,该网络设备还可以是车联网中为终端设备提供通信服务或者通信控制的网络侧装置。
网络设备为小区中的终端设备提供通信服务,小区中的终端设备通过网络设备分配的传输资源(例如,频域资源、时域资源等)与网络设备进行通信,该小区可以属于宏基站(例如,宏eNB或宏gNB等)。
为便于理解本申请的实施例,首先对本申请中涉及到的术语做简单说明。
1、侧行链路中的广播、组播通信方式
广播、组播是指一个发送设备发送的广播或组播数据,能够被一个或多个终端设备接收到。例如,预先定义业务数据在PC5接口上传输时所使用的目的层2标识(Destination Layer-2 ID)。当发送设备有该广播业务数据发送时,可以直接通过用户面协议栈进行发送,在媒体接入控制(mediaaccesscontrolprotocol,MAC)层和/或物理层(physical,PHY)层填充该广播业务对应的Destination Layer-2 ID。对该广播业务感兴趣的终端设备可以在PHY层监听是否有该广播业务对应的Destination Layer-2 ID的业务数据,并进行接收、解析,但本申请不限于此。
2、侧行链路中的单播通信方式
单播是终端设备一对一的通信方式,发送设备通过目的地址指示其发送的单播数据的接收设备,接收设备根据单播数据的目的地址确定该单播数据是否是发送给自己的单播数据,以及根据单播数据的源地址确定该单播数据是由哪个设备发送的。可选地,两个终端设备可以通过信令交互建立该两个设备之间的单播连接,单播连接建立完成后可以进行单播通信。
3、侧行链路传输模式1(mode1)
侧行链路mode1是指终端设备根据网络设备发送的侧行链路调度授权(sidelinkgrant)确定用于发送侧行链路数据的资源。该侧行链路调度授权用于授权该终端设备专用的发送侧行链路数据的资源。例如,终端设备在发送侧行链路前,向网络设备上报缓存状态报告bufferstatus reports,BSR)以通知网络设备待发送的数据量,网络设备根据终端设备上报的数据量为其授权相应资源。
4、侧行链路传输模式2(mode2)
侧行链路mode2是指网络设备预先分配用于侧行链路的资源,多个终端设备可以该用于侧行链路的资源中竞争资源,在竞争到资源的情况下,终端设备可以在该竞争到的资源上发送侧行链路的数据。例如,终端设备根据测量该用于侧行链路的资源中的每个时频资源是否被占用、来选择未被占用的资源进行传输,但本申请不限于此。
下面结合附图详细说明本申请实施例提供的侧行链路的通信方法。
图2是本申请实施例提供的侧行链路的通信方法的一示意性流程图。
S210,终端设备A(即,第一终端设备的一例)确定第一DRX的第一配置信息。
该第一DRX用于控制该终端设备A接收侧行链路上的SCI和/或数据。
一种实施方式中,终端设备A可以根据业务的服务质量(qualityofservice,QoS)需求确定该第一配置信息,或者,终端设备A可以根据终端设备B(即,第二终端设备的一例)向终端设备A发送的辅助信息确定第一配置信息。可选的,终端设备A处于连接态时,还可以将终端设备B发送的辅助信息发送给网络设备,由网络设备确定终端设备A的第一配置信息,并指示给终端设备A。
在本申请中所提及的业务的QoS需求可以包括但不限于以下一项或多项:
5G服务质量标识(5G QoS identifier,5QI)、PC5接口5G服务质量标识(PC5 QoS identifier,PQI)、业务的逻辑信道优先级、或者,其他反应业务数据的优先级、可靠性、延迟或数据速率等的QoS参数。
作为示例非限定,该辅助信息可以包括但不限于以下至少一项:资源配置信息、负载信息、速度信息、业务的QoS需求信息、业务模式(traffic pattern)、终端设备B建议的第一配置信息。示例性的,业务模式可以包括业务的周期、业务数据到达时刻相对于一个时间参考点的偏移、业务数据的最大传输块大小等信息。
终端设备B可以检测或确定该辅助信息后发送给终端设备A,或者,该辅助信息可以是网络设备指示给终端设备B,再由终端设备B转发给终端设备A,再或者,该辅助信息可以包括一部分由终端设备检测或确定的信息和/或一部分通过网络设备指示的信息,本申请对此不作限定。
另一种实施方式中,终端设备A可以从一个或多个配置信息A中确定该第一配置信息,该一个或多个配置信息A可以是***预配置的和/或网络设备为该终端设备配置的。
作为示例非限定,网络设备通过RRC消息和/或***消息为终端设备A配置该一个或多个配置信息A。
可选地,终端设备A可以同时有***预配置、网络设备通过RRC消息或***消息配置中的至少两项所配置的多套配置信息A,终端设备A可以根据优先级确定具体在哪一套配置信息A中确定第一配置信息。例如,网络设备配置的配置信息A优先级高于***预配置的配置信息A,网络设备通过终端设备专用的RRC消息配置的配置信息A优先级高于***消息配置的配置信息A,但本申请不限于此。
终端设备A可以根据但不限于以下一种或多种方式确定第一配置信息:
方式一,终端设备A可以根据终端设备B向终端设备A发送的上述辅助信息从该一个或多个配置信息A中确定该第一配置信息。
方式二,终端设备A可以根据业务需求,从该一个或多个配置信息A中确定该第一配置信息。
可选地,终端设备A可以具体根据业务的QoS需求和/或第一映射关系,从该一个或多个配置信息A中确定该第一配置信息。
例如,第一映射关系可以是多个业务的QoS需求的取值范围和多个配置信息相对应,第一映射关系可以如表1所示,终端设备A根据自身业务的QoS需求确定第一配置信息。 如终端设备A的业务的QoS需求在表1中的QoS需求范围3内,则终端设备A确定第一配置信息为QoS需求范围3对应的配置信息3。可选地,在终端设备A包括多种业务对应不同的取值范围的情况下,终端设备A可以根据业务的优先级确定第一配置信息。业务的优先级可以是协议规定的或***预设的,或者业务的优先级根据QoS需求的取值大小依次按照由小到大或由大到小的顺序排列,本申请对此不作限定。例如,终端设备A包括两个业务,示例性的,业务1的QoS需求在范围1内,另一个业务2的QoS需求在范围3内,由于业务2的优先级高于业务1的优先级,终端设备A确定第一配置信息为业务2对应的配置信息3。
表1
QoS需求 | 配置信息A |
QoS需求范围1 | 配置信息1 |
QoS需求范围2 | 配置信息2 |
QoS需求范围3 | 配置信息3 |
可选地,终端设备A可以具体根据业务类型和/或第二映射关系,从该一个或多个配置信息A中确定该第一配置信息,示例性的,业务类型可以是业务模式等。
例如,第一映射关系可以是多个业务类型和多个配置信息相对应,可以如表2所示,终端设备A根据业务类型确定从一个或多个配置信息A中确定第一配置信息。
表2
业务类型 | 配置信息A |
业务类型1 | 配置信息1 |
业务类型2 | 配置信息2 |
业务类型3 | 配置信息3 |
业务类型1、业务类型2 | 配置信息4 |
业务类型2、业务类型3 | 配置信息5 |
业务类型1、业务类型3 | 配置信息6 |
业务类型1、业务类型2、业务类型3 | 配置信息7 |
方式三,终端设备A接收网络设备的指示信息A,该指示信息A指示第一配置信息,该第一配置信息为该一个或多个配置信息A中的一个,终端设备A根据该指示信息A从该一个或多个配置信息A中确定该第一DRX的第一配置信息。例如,该指示信息A可以包括该一个配置信息A的标识,终端设备A根据指示信息A中的标识,确定该一个或多个配置信息A中与该标识对应的配置信息A为第一配置信息,但本申请不限于此。
一种实施方式中,第一配置信息可以包括但不限于以下一项或多项:
第一DRX的周期,用于指示第一DRX的周期长度;
第一DRX的起始偏移量,用于确定第一DRX周期的起始时刻;
第一计时器的时长,该第一计时器用于控制每个第一DRX周期内DRX的激活时长;
第二计时器的时长,该第二计时器用于控制接收到调度新传数据的控制信息后DRX的激活时长;
第一DRX的时隙偏移量,用于指示从第一DRX周期起始时刻到启动第一计时器的时间偏移量。
在本实施方式中,终端设备A确定的第一配置信息中包括第一DRX的基本配置,另 外,终端设备A可以通过接收步骤S240中终端设备B发送的第二配置信息,确定该第一DRX的其他配置信息。终端设备A根据第一配置信息和/或第二配置信息进行第一DRX操作,在DRX激活时间内监听终端设备B发送的侧行链路的SCI和/或数据。终端设备B根据第一配置信息和/或第二配置信息确定终端设备A的第一DRX的DRX激活时间,在该DRX激活时间内向终端设备B发送侧行链路的SCI和/或数据。
另一种实施方式中,第一配置信息包括第一DRX的周期、第一DRX的起始偏移量、第一计时器的时长、第二计时器的时长、第一DRX的时隙偏移量中的一项或多项外,还可以包括但不限于以下一项或多项:
第三计时器的时长,该第三计时器用于控制同一混合自动重传请求(hybrid automatic repeat request,HARQ)进程中距离下一次数据重传的最小时长;
第四计时器的时长,该四计时器用于控制检测和/或接收重传数据的最大时长。
在本实施方式中,终端设备A确定第一DRX的所有配置信息,即第一配置信息,并在S220中通知终端设备B。终端设备A根据第一配置信息进行第一DRX操作,在DRX激活时间内接收终端设备B发送的侧行链路的SCI和/或数据,终端设备B根据第一配置信息确定终端设备A的第一DRX的DRX激活时间,在该DRX激活时间内向终端设备B发送侧行链路的SCI和/或数据。也就是说,在本实施方式中可以不执行S230和/或S240,终端设备A和/或终端设备B根据第一配置信息确定终端设备A的DRX激活时间。
S220,该终端设备A向该终端设备B发送第一配置信息。
该终端设备B接收终端设备A发送的第一配置信息。可选地,终端设备B将第一配置信息保存在该终端设备A的上下文信息(UEcontext)中。
作为示例非限定,该终端设备A向该终端设备B发送的侧行链路RRC消息中包括该第一配置信息。
S230,终端设备B确定该第一DRX的第二配置信息。
该第二配置信息可以包括该第一DRX操作中HARQ相关的信息。作为示例非限定,该第二配置信息可以包括该第三计时器的信息和/或该第四计时器的信息,示例性的,该第三计时器的信息用于指示距离下一次同一HARQ进程的数据重传的最小时长,第四计时器的信息用于指示检测和/或接收重传数据的最大时长。
终端设备B可以根据以下一种或多种方式确定第二配置信息:
方式一,终端设备B可以根据该终端设备B的相关信息,确定第二配置信息。该相关信息可以包括但不限于信道忙碌率(channelbusyratio,CBR)、速度或业务的QoS需求中的一种或多种。
方式二,终端设备B可以从一个或多个配置信息B中确定第二配置信息。该一个或多个配置信息B可以是***预配置的和/或网络设备为该终端设备配置的。
作为示例非限定,网络设备通过RRC消息和/或***消息为终端设备B配置该一个或多个配置信息B。
可选地,终端设备B可以同时有***预配置、网络设备通过RRC消息或***消息配置中的至少两项所配置的一个或多个配置信息B,终端设备A可以根据***预配置、网络设备通过RRC消息以及***消息的优先级,确定在该三项中的哪一项配置的一个或多个信息B中确定第二配置信。例如,网络设备的配置信息的优先级高于***预配置的配置信 息,网络设备通过终端设备专用的RRC消息配置的配置信息优先级高于***消息配置的配置信息,但本申请不限于此。
可选地,终端设备B根据该相关信息,在该一个或多个配置信息B(即,第四配置信息的一例)中确定该第二配置信息。例如,多个该相关信息的取值范围与多个配置信息B相对应,终端设备B根据该相关信息的具体取值确定该相关信息的具体取值所在的取值范围1,并确定取值范围1对应的配置信息B为该第二配置信息。
可选地,终端设备B接收网络设备的指示信息B,该指示信息B指示该一个或多个配置信息B中的一个,终端设备B根据该指示信息B确定第二配置信息。
作为示例非限定,该指示信息B可以包括在网络设备发送的RRC消息或***消息中。
例如,该终端设备B可以通过mode1方式获取侧行链路资源,该终端设备可以根据网络设备的指示信息B确定第二配置信息。该指示信息B可以包括该一个或多个配置信息A中的一个配置信息B的标识,终端设备B根据指示信息B中的标识确定该标识对应的配置信息B为第一配置信息,但本申请不限于此。
S240,终端设备B向终端设备A发送第二配置信息。
该终端设备A接收终端设备B发送的该第二配置信息。可选地,该终端设备A将该第二配置信息保存在该终端设备B的上下文信息中。
作为示例非限定,该终端设备B向该终端设备A发送的侧行链路RRC消息中包括该第二配置信息。
S250,终端设备B向网络设备发送指示信息C。该指示信息C用于指示该终端设备A的该第一DRX的该第一配置信息和/或该第二配置信息。
该网络设备接收该指示信息C,根据该指示信息C确定该终端设备A的第一DRX的配置信息。
一种实施方式中,该指示信息C包括该第一DRX的该第一配置信息。在本实施方式中,第二配置信息可以是网络设备确定并通过指示信息B通知终端设备B的,因此,网络设备已经获取了该第二配置信息,通过指示信息C获取第一配置信息后即可以确定该终端设备A的该第一DRX的激活时间,网络设备能够为终端设备B分配该第一DRX的激活时间内的资源,使得终端设备B能够在该第一DRX的激活时间内向该终端设备A发送链路控制信息(sidelinkcontrolinformation,SCI)和/或数据,但本申请不限于此。
另一种实施方式中,该指示信息C包括该第一DRX的该第一配置信息和/或该第二配置信息。该网络设备根据该指示信息C确定该终端设备A的激活时间,使得网络设备可以为终端设备B分配该第一DRX的激活时间内的资源,使得终端设备B能够在该第一DRX的激活时间内向该终端设备A发送SCI和/或数据,但本申请不限于此。
需要说明的是,S250为可选步骤,例如,终端设备B在采用mode1方式的情况下可以向网络设备发送该指示信息C,以便网络设备确定终端设备A的DRX激活时间,从而能够为终端设备B分配该终端设备A的DRX激活时间内的资源,使得终端设备B能够在该终端设备A的DRX激活时间内向该终端设备A发送侧行链路的数据,但本申请不限于此。终端设备B在采用mode2方式获取侧行链路资源的情况下,可以不向网络设备发送该指示信息C,即不执行S250,但本申请不限于此。另外,终端设备B也可以在S220之后,S230或S240之前执行S250。
S260,该终端设备A开始该第一DRX操作。
S270,该终端设备B在该第一DRX的激活时间内向该终端设备A发送SCI和/或数据。
该终端设备A可以在以下一种或多种情况下开始该第一DRX操作:
情况1,该终端设备A在发送该第一配置信息后开始该第一DRX操作。
情况2,该终端设备A在接收到该第一反馈信息后,开始该第一DRX操作。该第一反馈信息为终端设备B对第一配置信息接收成功的反馈。相应地,终端设备B可以在发送了该第一反馈信息后确定该终端设备A开始该第一DRX操作。可选地,终端设备B发送的该第二配置信息可以作为该第一反馈信息,也就是说,终端设备A接收到该第二配置信息后认为该终端设备B对该第一配置信息接收成功,并开始该第一DRX操作。相应地,终端设备B可以在发送了该第二配置信息后确定该终端设备A开始该第一DRX操作。
情况3,该终端设备A发送了指示信息D(即第一指示信息的一例)后,开始该第一DRX操作,该指示信息D用于指示该终端设备A开始该第一DRX操作。
情况4,该终端设备A向该终端设备B发送了第二反馈信息后,开始该第一DRX操作,该第二反馈信息为该终端设备A对该第二配置信息接收成功的反馈,相应地,该终端设备B在接收到该第二反馈信息后,确定该终端设备A开始该第一DRX操作。
情况5,该终端设备A接收到终端设备B发送的指示信息E后,开始第一DRX操作,该指示信息E用于指示该终端设备A开始第一DRX操作。
终端设备B确定该终端设备A开始该第一DRX操作后,可以在该终端设备A的该第一DRX的激活时间内向该终端设备A发送SCI和/或数据。
终端设备A根据该第一DRX的周期,在每个第一DRX周期的起始时刻或起始时刻的时隙偏移量后启动第一计时器,并且在第一计时器运行期间接收侧行链路控制信息(sidelinkcontrolinformation,SCI),也就是说该第一计时器运行期间该终端设备A处于DRX激活时间。若第一配置信息包括该第一DRX的起始偏移量的情况下,终端设备A可以根据该起始偏移量确定第一计时器的启动位置。
需要说明的是,本申请中提及的启动计时器,可以理解为启动一个计时器开始计时,也可以是,当一个计时器在运行时,启动定时器可以理解为重启该计时器。
例如,终端设备A可以根据如下公式确定满足条件的子帧号,
[(DFN×10)+subframenumber]mod(DRX Cycle)=(StartOffset)modulo(DRX Cycle)
并且在该子帧号对应的子帧起始位置推迟SlotOffset后启动该第一计时器,其中,mod表示取模值,DFN为直接无线帧号(directframenumber,DFN),subframenumber为子帧号,DRX Cycle为该第一DRX的周期,StartOffset为该第一DRX的起始位置偏移量,SlotOffset为第一DRX的时隙偏移量,示例性的,SlotOffset可以是偏移的时隙个数,但本申请不限于此。
在该第一DRX的激活时间内,终端设备A可以进行如下行为中的一项或多项:
监听SCI、解析监听到的SCI所指示的物理侧行链路共享信道(physicalsidelinksharedchannel,PSSCH)或监听物理侧行链路反馈信道(physicalsidelinkfeedbackchannel,PSFCH)。
可选地,在该第一DRX的激活时间内,该终端设备A需要监听的SCI的格式可以包 括但不限于格式0-1(SCIformat 0-1)和/或格式0-2(SCIformat0-2)的SCI,示例性的,格式0-1的SCI可以指示资源分配的相关参数,格式0-2的SCI可以包括源地址、目的地址、重传或新传指示、HARQ进程指示中的一种或多种信息。
终端设备A在该第一DRX的激活时间内接收到终端设备B发送的SCI,且SCI指示所传输的数据为该终端设备的数据的情况下:
或该SCI中指示终端设备B给终端设备A发送新传数据,则启动/重启第二计时器。
若该SCI指示终端设备B为终端设备A预留了后续重传资源,即终端设备B有机会在后续预留的重传资源上对该SCI指示的该次传输的数据的进行重传,则终端设备A可以采用但不限于如下实施方式:
实施方式A,终端设备A启动第三计时器。需要说明的是,该第三计时器的运行不影响终端设备A的第一DRX的激活时间,即终端设备是否处于第一DRX的激活时间与第三计时器的是否运行无关。也就是说,如果终端设备A处于第一DRX的激活时间,无论第三计时器是否正在运行终端设备A仍处于第一DRX的激活时间,如果终端设备A处于第一DRX的非激活时间,无论第三计时器是否正在运行终端设备A仍处于第一DRX的非激活时间。可选地,终端设备A可以在承载该数据资源的下一个时间单元或M个时间单元后启动该第三计时器,或者,终端设备A可以在对该次传输发送了反馈信息(ACK或NACK),或者,反馈了NACK的M个时间单元后启动第三计时器。可选的,如果SCI中指示终端设备B为终端设备A的该次传输预留了至少一块传输资源,终端设备A可以只在预留的第一块传输资源上进行传输后的下一个时间单元或M个时间单元后或对该次传输进行了反馈/反馈了NACK的M个时间单元后启动第三计时器。作为示例非限定,该时间单元可以是符号、时隙或子帧中的一个,M为大于等于1的整数,例如M的取值由协议预定义或者***预配置或者由网络设备进行配置。可选的,如果该HARQ进程的第四计时器正在运行,则停止该第四计时器。当该第三计时器超时,且该终端设备A反馈了未成功接收的反馈信息或解码该数据失败,则终端设备A启动该HARQ进程对应的该第四计时器,但本申请不限于此。
在该实施方式中,第三计时器的时长可以是第一配置信息或第二配置信息中指示的第三计时器的时长,也可以是基于SCI中所指示的该次传输和下次传输资源的时间间隔(gap)确定的一个时长T1,如T1可以等于上述时间间隔(gap),或gap±K个时间单元。第四计时器的时长可以是第一配置信息或第二配置信息中指示的第四计时器的时长,或者是基于固定的L个时间单元,也可以是基于重传资源占用时长(duration)确定的一个时长T2,如T2可以等于duration,或duration±L个时间单元。作为示例非限定,该时间单元可以是符号、时隙或子帧中的一个,K和L为大于等于1的整数,例如K,L的取值由协议预定义或者***预配置或由网络设备进行配置。
例如图3所示,在一个第一DRX周期内,终端设备A在该第一计时器运行期间接收到调度新传数据的SCI,则该终端设备A启动该第二计时器,终端设备A在该第二计时器运行期间监听SCI。并且,该SCI指示为终端设备A预留了重传资源,则终端设备A启动该新传数据的HARQ进程对应的第三计时器,且该第三计时器运行期间不影响终端设备A的第一DRX的激活时间。当该第三计时器超时,该终端设备A反馈了未成功接收的反馈信息或解码该数据失败,则终端设备A启动第四计时器以接收重传数据。
实施方式B,终端设备A根据对该数据的HARQ反馈结果或者根据是否成功解码该数据,确定是否在该SCI指示的后续重传资源上接收SCI和/或数据。
例如,终端设备A反馈了未成功接收的反馈信息或解码该数据失败,则在该SCI指示的重传资源上接收SCI和/或数据;终端设备A反馈了成功接收的反馈信息或成功解码该数据,则不在该SCI指示的重传资源上接收SCI和/或数据。可选的,在终端设备A确定不在该SCI指示的重传资源上接收SCI和/或数据的情况下,如果当前该HARQ进程对应的第三计时器和/或第四计时器处于运行状态,则终端设备A可以停止该HARQ进程对应的第三计时器和/或第四计时器。一种可选的实施方式是,终端设备A总在SCI指示的后续重传资源上接收SCI和/或数据。
若该SCI指示终端设备B没有为终端设备A预留后续重传资源,则终端设备A可以采用但不限于如下实施方式:
实施方式a,与上述实施方式A相同,可以参考上述描述,为了简要在此不再赘述。
实施方式b,终端设备A根据终端设备B指示的HARQ使能情况确定是否启动第三计时器,若终端设备B指示的HARQ为去使能(disable)状态,也就是不需要终端设备A发送HARQ反馈,则终端设备A不启动第三计时器,若终端设备B指示的HARQ为使能(enable)状态,则终端设备A启动第三计时器,可选地,终端设备A可以在发送了HARQ反馈信息(ACK或NACK)或者,反馈了NACK的下一个时间单元或M个时间单元后启动第三计时器,或者,终端设备A可以在反馈未接收成功的反馈信息(NACK)后的下一个时间单元或M个时间单元后启动第三计时器,该时间单元可以是符号、时隙或子帧中的一个,M为大于或等于1的整数,例如M的取值由协议预定义或者由网络进行配置。
终端设备B可以采用与上述该终端设备A相同的方式维护各个计时器,可以选择在第一DRX激活时间内向终端设备发送SCI和/或数据。或者,终端设备B仅根据第一配置信息维护第一计时器和/或第二计时器,例如终端设备B采用mode1方式获取侧行链路资源,由网络设备维护该第三计时器和/或该第四计时器,网络设备根据该终端设备A的第一DRX的激活时间,为终端设备B选择侧行链路资源,并通知终端设备B,终端设备B根据网络设备指示向终端设备A发送数据,因此终端设备B可以不维护该第三计时器和该第四计时器。
该终端设备A在以下一种或多中情况下处于DRX激活时间:
情况A,该第一计时器运行期间。
情况B,该第二计时器运行期间。
情况C,至少一个HARQ进程有关联的第四计时器处于运行状态。
情况D,在SCI指示的预留的重传资源的时域位置。
情况E,终端设备A需要接收侧行链路的HARQ反馈的时刻。
情况F,终端设备A等待接收信道状态信息(channelstateinformation,CSI)报告期间,可选地,终端设备A在发送了CSI请求后启动或重启第五计时器,终端设备A在该第五计时器运行期间终端设备处于DRX激活时间,在接收到CSI报告后停止该第五计时器。
可选地,终端设备A在发送了CSI请求后在第一时间间隔内处于第一DRX的激活时间。
作为示例非限定,该第五计时器的时间长度和/或该第一时间间隔可以通过一下一种或多种方式获得:
协议预定义、***预配置、网络设备配置或发送该CSI报告的终端设备指示。
示例性的,网络设备通过RRC专用消息、***消息配置该第五计时器的时间长度和/或该第一时间间隔,发送该CSI报告的终端设备可以通过侧行链路RRC消息指示该第五计时器的时间长度和/或该第一时间间隔。
情况G,终端设备A接收到终端设备B以外的其他终端设备发送的单播建立请求,或者,终端设备A向终端设备B以外的其他终端设备发送了单播建立请求,且在单播建立完成前或在交互DRX配置完成前或进行DRX操作之前,可选地,终端设备A在接收到或发送单播建立请求后启动或重启第六计时器,终端设备A在该第六计时器运行期间终端设备处于DRX激活时间,在单播建立完成后或交互DRX配置完成/开始进行DRX操作后,停止该第六计时器。
可选地,终端设备A在接收到单播建立请求后在第二时间间隔内处于第一DRX的激活时间。
情况G可以扩展到其他过程,如终端设备A向一个终端设备发送了请求消息,如配置请求等,在接收到该一个终端设备发送对应的响应消息之前,终端设备A处于DRX的激活时间。可选的,终端设备A在向该一个终端设备发送的请求消息后启动或重启第六计时器,终端设备A在该第六计时器运行期间终端设备处于DRX激活时间,在接收到对端终端设备发送的响应消息后,停止该第六计时器。可选的,终端设备A在向该一个终端设备发送的请求消息后在第二时间间隔内处于第一DRX的激活时间。
作为示例非限定,该第六计时器的时间长度和/或该第二时间间隔可以通过一下一种或多种方式获得:
协议预定义、***预配置、网络设备配置。示例性的,网络设备通过RRC专用消息、***消息配置该第六计时器的时间长度和/或该第二时间间隔。
根据本申请的方案,明确DRX的激活时间,能够使得DRX操作的接收设备和发送设备对DRX的激活时间达成共识,保证数据传输的可靠性。
在本申请中,终端设备A可以向终端设备B重配置该第一DRX的信息,作为示例非限定,终端设备A可以通过侧行链路的RRC消息向终端设备B发送该第一DRX的重配置信息。
可选地,终端设备A可以在满足以下一种或多种条件下重配置该第一DRX的信息。
条件1,终端设备A发起新的QoS需求的业务,且当前第一DRX的配置信息无法满足该新的QoS需求。例如,当前第一DRX的配置信息无法满足该新业务的时延需求,则终端设备A对第一DRX进行重配置,并通知终端设备B该第一DRX的重配置信息,但本申请不限于此。
条件2,终端设备A接收到网络设备发送的上述指示信息A,该指示信息A指示与第一配置信息不同的配置信息A。例如,该指示信息A指示了一个该第一配置信息的标识不同的配置信息A的标识,终端设备A接收到该指示信息A后,重配置第一DRX的信息,并通知终端设备B该第一DRX的重配置信息,但本申请不限于此。
在本申请中,终端设备B也可以向终端设备A重配置该第一DRX的信息,作为示例 非限定,终端设备B可以通过侧行链路的RRC消息向终端设备A发送该第一DRX的重配置信息。
可选地,终端设备B可以在满足以下一种或多种条件下重配置该第一DRX的信息。
条件1,终端设备B的侧行链路资源分配模式发生变化。如侧行链路资源分配模式从mode1切换到mode2或者从mode2切换到mode1,终端设备B可以更新第一DRX的第二配置信息并将更新后的配置信息发送给终端设备A。
条件2,终端设备B与网络的连接状态发生变化。如终端设备B从RRC连接态变为RRC空闲态或RRC非激活(Inactive)态,或者从RRC空闲态或RRC Inactive态变为RRC连接态,或者从网络设备覆盖范围内移动到网络设备覆盖范围外,或网络设备覆盖范围外移动到网络设备覆盖范围内,终端设备B可以更新第一DRX的第二配置信息并将更新后的配置信息发送给终端设备A。
例如,终端设备B处于网络设备覆盖范围外,通过***预配置方式获取第一DRX的第二配置信息,终端设备B处于网络设备覆盖范围内,通过网络设备的RRC消息和/或***消息获取第一DRX的第二配置信息,当终端设备B从网络设备覆盖范围外移动到网络设备覆盖范围内时,可以获取新的第一DRX的第二配置信息,并发送给终端设备A。
条件3,终端设备B确定第一DRX的第二配置信息的相关信息发生变化,如信道忙碌率(channelbusyratio,CBR)、速度或业务的QoS需求中的一种或多种发生了变化,终端设备B可以更新第一DRX的第二配置信息并将更新后的配置信息发送给终端设备A。
根据本申请的方案,由DRX操作的接收设备根据自身建立的侧行链路连接的情况,确定用于侧行链路的DRX操作的配置信息,能够避免在网络设备为该接收设备配置侧行链路DRX操作的情况下,因网络设备无法获取该接收设备侧行链路的连接情况而造成配置不合理无法达到节能的目的或降低通信可靠性的情况。因此,本申请的方案,能够减小终端设备的功率消耗、提高通信的可靠性。可选地,本申请的方案提出由用于侧行链路的DRX操作的发送设备通知接收设备与该侧行链路的DRX操作中HARQ相关的配置信息,可以根据负载情况确定合适的计时器时长,进而达到节能的目的。
图4是本申请实施例提供的侧行链路的通信方法的另一示意性流程图。
在本申请中,该终端设备A可以与多个终端设备建立侧行链路,图4以终端设备A与两个终端设备,即终端设备B和终端设备C(即,第二终端设备的另一例)为例进行描述,但本申请不限于此。需要说明的是,图4与图2中相同或相似的部分可以参考上述对图2的描述,为了简要,在此不再赘述。
S410,终端设备A确定第一DRX的第一配置信息。
该第一DRX用于该终端设备A接收多个侧行链路上的SCI和/或数据。也就是说,在终端设备A与多个终端设备建立侧行链路连接的情况下,终端设备维护一套DRX配置,即第一DRX的配置信息,根据第一DRX的配置信息确定DRX激活时间,以接收多个侧行链路上的SCI和/或数据。
一种实施方式中,终端设备A可以根据多个侧行链路上的业务的服务质量(qualityofservice,QoS)需求确定该第一DRX的该第一配置信息,或者,多个侧行链路的发送设备(即终端设备B和/或终端设备C)分别向终端设备A发送的辅助信息,如辅助信息B、辅助信息C,终端设备A可以根据辅助信息B和/或辅助信息C确定一个第一 配置信息。
另一种实施方式中,终端设备A可以从一个或多个配置信息A中确定该第一配置信息。
终端设备A可以采用上述确定第一配置信息的方式一至方式三中的一种或多种确定第一配置信息,示例性的,方式一、方式三中,终端设备A可以综合考虑终端设备B和/或终端设备C的辅助信息、业务需求确定一个第一配置信息。或者终端设备A可以根据终端设备B的辅助信息和终端设备C的辅助信息中优先级较高的辅助信息确定一个第一配置信息。再或者,终端设备A可以根据多个侧行链路中的业务中优先级较高的业务确定一个第一配置信息,但本申请不限于此。
一种实施方式中,第一配置信息包括第一DRX的周期、第一DRX的起始偏移量、第一计时器的时长、第二计时器的时长、第一DRX的时隙偏移量中的一项或多项。该第一DRX的其他配置信息可以通过终端设备B和/或终端设备C发送给终端设备A,即终端设备B和/或终端设备C通过S430分别确定第二配置信息,即第二配置信息B、第二配置信息C后,分别在S440向终端设备A发送。
S420,终端设备A向终端设备B和/或终端设备C发送第一配置信息。
终端设备B接收该第一配置信息,并将该第一配置信息保存在终端设备A的上下文信息中。终端设备C接收该第一配置信息,并将该第一配置信息保存在该终端设备A的上下文信息中。
一种实施方式中,终端设备A可以广播或组播该第一配置信息。
终端设备B和/或终端设备C根据终端设备A的标识确定该广播或组播的第一配置信息为该终端设备A发送的。
另一种实施方式中,该终端设备A通过单播的方式向终端设备B和/或终端设备C分别发送该第一配置信息。在本实施方式中,在时间上,终端设备A向终端设备B发送该第一配置信息的时间可以早于也可以晚于向终端设备C发送该第一配置信息的时间,或者同时向终端设备B和终端设备C分别发送该第一配置信息,本申请对终端设备A向各个终端设备发送第一配置信息的先后顺序不作限定,例如,终端设备A可以在于一个终端设备建立单播连接之后向该一个终端设备发送该第一配置信息,但本申请不限于此。
S430,终端设备B确定该第一DRX的第二配置信息b,终端设备C确定该第一DRX的第二配置信息c。
终端设备B确定第二配置信息b和/或终端设备C确定第二配置信息c的方式可以参考图2中终端设备B确定第二配置信息的描述,为了简要,在此不再赘述。
该第二配置信息B包括第三计时器b的信息和/或第四计时器b的信息,该第二配置信息c包括第三计时器b的信息和/或第四计时器b的信息。
S440,终端设备B向终端设备A发送该第二配置信息B,终端设备C向终端设备A发送该第二配置信息C。
在本实施方式中,终端设备A维护用于接收侧行链路SCI和/或数据的一套配置信息,即第一DRX的配置信息,其中包括由终端设备A确定的第一配置信息,终端设备B确定的第二配置信息b和终端设备C确定的第二配置信息c。
例如图5所示,终端设备A根据第一配置信息中的第一DRX的周期和/或起始位置偏 移量确定启动第一计时器的时刻t1,在第一计时器运行期间处于DRX激活时间,终端设备A监听终端设备B和终端设备C发送的SCI和/或数据。在t2时刻终端设备A检测到终端设备C发送的SCI,该SCI 1指示调度了新传数据1,则终端设备A启动第二计时器。该SCI 1还指示终端设备C为终端设备A预留了重传资源,则终端设备A根据第一DRX的第二配置信息c启动该新传数据1对应的HARQ进程1的第三计时器c。在该HARQ进程1的第三计时器c运行期间,在第三计时器c超时后,启动该HARQ进程1的第四计时器c,在该HARQ进程1的第四计时器c运行期间,终端设备A接收该HARQ进程1的重传数据。类似地,在t3时刻,终端设备A接收到终端设备B发送的SCI 2,则终端设备A开启相应HARQ进程2的第三计时器b,以及在该HARQ进程2的第三计时器b超时后,启动该HARQ进程2对应的第四计时器b。
需要说明的是,终端设备B和终端设备C分别执行S430和S440,本申请对终端设备B执行S430、S440与终端设备C执行S430、S440的先后顺序不作限定,例如,终端设备C执行S430后执行S440,终端设备C执行S440可以早于终端设备B执行S430或S440,本申请对此不作限定。
另一种实施方式中,第一配置信息包括第一DRX的周期、第一DRX的起始偏移量、第一计时器的时长、第二计时器的时长、第一DRX的时隙偏移量中的一项或多项外,还可以包括但不限于第三计时器的时长和/或第四计时器的时长。
在本实施方式中,终端设备A确定终端设备A进行该第一DRX操作的所有配置信息,即第一配置信息,终端设备A根据第一配置信息进行第一DRX操作,在该第一DRX的激活时间内监听终端设备B和终端设备C发送的侧行链路的SCI和/或数据,终端设备B和终端设备C均根据第一配置信息确定终端设备A的第一DRX的DRX激活时间,并且可以在该DRX激活时间内向终端设备A发送侧行链路的SCI和/或数据。也就是说,在本实施方式中可以不执行S430和/或S440,终端设备A、终端设备B和终端设备C根据第一配置信息确定终端设备A的DRX激活时间。
可选地,终端设备B和/或终端设备C还可以分别向网络设备发送指示信息C,分别为指示信息C1,指示信息C2。
终端设备B向网络设备发送指示信息C1中,可以包括该第一配置信息和/或该第二配置信息b。终端设备C向网络设备发送指示信息C2中,可以包括该第一配置信息和/或该第二配置信息c。具体实施方式可以参考上述图2中终端设备B向网络设备发送指示信息C的方式,为了简要,在此不再赘述。
示例性的,终端设备B和终端设备C可以连接于同一网络设备也可以连接于不同网络设备。可选地,在连接于同一网络设备的情况下,可以是由网络设备指定终端设备B和终端设备C中的一个终端设备向网络设备发送第一配置信息,但本申请不限于此。
S450,终端设备A开始第一DRX操作。
具体实施中,终端设备A在什么情况下开始第一DRX操作,可以参考上述图2中S260的描述,为了简要,在此不再赘述。
S460,终端设备B在该第一DRX的激活时间内向该终端设备A发送SCI和/或数据,终端设备B在该第一DRX的激活时间内向该终端设备A发送SCI和/或数据。
在终端设备A开始第一DRX操作后,终端设备B、终端设备C可以根据第一配置信 息和/或第二配置信息确定该第一DRX的激活时间。终端设备B或终端设备C需要向终端设备A发送SCI和/或数据的情况下,则在第一DRX的激活时间内向终端设备A发送该SCI和/或数据。具体如何确定该终端设备A处于第一DRX的激活时间,可以参考上述图2中的描述,为了简要,在此不再赘述。
根据本申请的方案,由DRX操作的接收设备根据自身建立的侧行链路连接的情况,针对多个发送设备维护一个公用的用于侧行链路的DRX操作的配置信息,能够避免由发送设备为该接收设备配置侧行链路DRX操作的情况下,多个发送设备配置的信息不一致而导致接收设备在每个发送设备配置的DRX操作激活时间内均接收信号,而无法实现节能的情况。本申请的方案,能够有效地达到减小终端设备的功率消耗的目的。可选地,本申请的方案提出由用于侧行链路的DRX操作的发送设备通知接收设备与该侧行链路的DRX操作中HARQ相关的配置信息,可以根据负载情况确定合适的计时器时长,进而达到节能的目的。
在本申请中,侧行链路的单播连接可以通过两个终端设备的源层2(sourceLayer-2 ID)标识进行标识,但在发送设备发送侧行链路的单播数据时,如发送接入控制协议数据单元(mediaaccesscontrolprotocol data unit,MACPDU)时,在SCI中承载的是发送设备的源层1标识(source Layer-1 ID),用于标识该发送设备,也就是说,接收设备在接收到该SCI后可以根据该源层1标识确定发送该SCI的终端设备。根据现有NR版本16(NRrelease 16)的规定,终端设备的源层2标识的长度是24比特,终端设备在SCI中发送的源层1标识是源层2标识的低8比特。该SCI中承载的目的层1标识(destination Layer-1 ID)是目的层2标识(destination Layer-2 ID)的低16比特。也就是说,接收设备在接收到该SCI后可以根据该SCI中承载的目的层1标识是否是该接收设备的源层2标识的低16比特,确定该SCI是否是发送给该接收设备的。
因此,上述方式可能造成层1标识(源层1标识或目的层1标识)冲突的问题,例如,终端设备A,终端设备B和终端设备C的源层2标识分别为DEF,ABC,PQC,示例性的,标识中每个字母标识一个8比特的取值。则终端设备B向终端设备A发送的数据的相应SCI 3中包括的源层1标识为C,目的层1标识为EF,终端设备C向终端设备A发送的数据的相应SCI 4中包括的源层1标识C,目的层1标识为EF;因此终端设备A无法通过SCI中指示源层1标识区分该SCI是终端设备B发送的,还是终端设备C发送的。同样,目的层1标识相同也会出现两个终端设备之间的数据错误接收的情况。
针对上述标识冲突问题,本申请提出了侧行链路通信中解决标识冲突的方法。
一种实施方式中,终端设备A确定终端设备B与终端设备C的源层1标识或目的层1标识相同的的情况下,终端设备A向终端设备B或终端设备C中的一个终端设备发送指示信息F(即,第二指示信息的一例),指示信息F用于请求终端设备B或终端设备C更新标识,可选的,指示信息可以指示更新的标识可以是源层1标识、目的层1标识或源层2标识中的一项。终端设备B或终端设备C接收到该指示信息F后更新该标识,并将更新后的标识发送给终端设备A。
另一种实施方式中,终端设备A确定终端设备B与终端设备C的源层1标识或目的层1标识相同,例如为第一标识的情况下,终端设备A可以将与该终端设备B或终端设备C通信时采用的标识更新为第二标识。终端设备A向终端设备B或终端设备C中的一 个终端设备发送指示信息G(即,第三指示信息的一例),指示信息G用于向终端设备B或终端设备C指示该终端设备A的标识更新为第二标识。也就是说,终端设备A确定两个终端设备的标识发生冲突后,更新自己与其中一个终端设备(终端设备B或终端设备C)通信时采用的标识,即更新为第二标识,并通知该一个终端设备。使得终端设备A从该一个终端设备接收到SCI后,根据该SCI中承载的目的标识为第二标识,确定该SCI是该一个终端设备发送给该终端设备A的。以及终端设备A向该一个终端设备发送SCI时,该SCI承载的源标识为第二标识或第二标识的低8比特,使得该一个终端设备在接收到该终端设备A发送的SCI后,根据该SCI承载的源标识为该第二标识或该第二标识的低8比特,确定该SCI为终端设备A发送给该一个终端设备的。
例如,终端设备A确定终端设备B与终端设备C的源层1标识均为C(即第一标识为C),终端设备A确定更新与终端设备B通信时该终端设备A采用的标识,例如,更新为ED(即,第二标识为ED),并向终端设备B发送指示信息G,终端设备B接收到指示信息G确定该终端设备A的标识更新为ED。在终端设备B向终端设备A发送SCI时,该SCI指示的目的标识为ED;在终端设备B接收到一个SCI后,根据该SCI中指示的源标识为ED或D,确定该SCI为终端设备A发送的,但本申请不限于此。根据上述方案,能够避免出现因标识冲突使得终端设备无法确定数据的实际的发送设备或接收设备的情况,能够提高通信的安全性以及通信的可靠性。
在本申请中,终端设备可以根据广播业务或组播业务的目的标识确定接收广播业务或组播业务数据的时域资源或频域资源。
作为示例非限定,终端设备可以根据广播业务或组播业务的目的标识和/或第三映射关系,确定该广播业务或组播业务数据的时域资源或频域资源。
作为示例非限定,该目的标识可以是广播业务或组播业务的目的层2标识,即destination Layer-2 ID,可选的,该目的标识也可以是广播业务或组播业务在应用层的标识,或目的层1标识(例如,目的层2标识的低16比特),或者目的层2标识/目的层1标识的低N比特或者高N比特,其中N为大于或等于1的整数,具体实现时不做限定。
可选地,该第三映射关系可以包括但不限于以下一种或多种:
目的标识mod N1=(时域资源编号/K1)mod M1;
目的标识mod N2=(频域资源编号/K2)mod M2,
其中,mod表示取模值,N1、N2、K1、K2、M1或M2中的一项或多项可以是协议预定义的、***预设的、网络设备通过RRC专用消息或***消息配置的参数值。时域资源编号可以写作resourceIndexTime,例如为资源池内时域资源的索引,其中,该资源池为用于侧行链路通信的资源。频域资源编号可以写作resourceIndexFreq,例如为资源池内频域资源索引。例如,该目的标识为广播业务或组播业务的目的层2标识,则第三映射关系可以写作:
(destination Layer-2 ID)mod N1=(resourceIndexTime/K1)mod M1,和/或,
(destination Layer-2 ID)mod N2=(resourceIndexFreq/K2)mod M2。
可选的,N1=M1或N2=M2;
可选的,K1=1,即(destination Layer-2 ID)mod N1=resourceIndexTime mod M1;
可选的,K2=1,即(destination Layer-2 ID)mod N2=resourceIndexFreq mod M2。
示例性的,resourceIndexFreq根据无线传输资源所在的频域单元序号确定,例如可以是载波内资源块的索引号,或资源池内子信道(subchannel)的索引号。
resourceIndexTime可以通过以下一种或多种方式确定:
方式1,resourceIndexTime根据无线传输资源所在的时间单元序号确定。该时间单元序号可以包括但不限于以下一种:
无线帧编号(radio frame index,如***无线帧号(systemframenumber,SFN)或直接无线帧号(direct frame number,DFN))、子帧编号(subframe index,如一个无线帧内的子帧编号)、时隙编号(slot index,如一个子帧内的时隙编号)或符号编号(symbol index,如一个时隙内的符号编号)。
例如,一个子帧内的侧行链路资源中,其resourceIndexTime可以如下:
resourceIndexTime=radio frame index×10+subframe index。
其中,radio frame index为侧行链路资源所在的无线帧的编号,subframe index为侧行链路资源所在的子帧的编号
再例如,一个时隙内的侧行链路资源中,其resourceIndex可以如下:
resourceIndexTime=(radio frame index*10+subframe index)×NumOfSlotPerSubframe+slot index,
其中,slot index为侧行链路资源所在的时隙的编号,NumOfSlotPerSubframe为一个子帧内的时隙个数,以15kHz子载波为例,一个子帧内包括10个slot,但本申请不限于此。
可选的,如果通过方式1确定的无线传输资源的时域位置上没有配置侧行链路资源,则终端设备忽略该无线资源位置,即无法在该无线资源位置上发送或接收广播业务或组播业务数据。
方式2,resourceIndexTime为侧行链路资源在一个资源池周期内的编号。
例如图6所示,一个载波上每个无线帧内的子帧1到子帧5为侧行链路资源池,资源池的周期为10ms,即一个无线帧长;在每个资源池周期内,每个子帧依次编号,即资源池内的第一个子帧(即无线帧内的子帧1)在资源池周期内的编号为0,资源池内的第二个子帧(即无线帧内的子帧2)在资源池周期内的编号为1,依次类推。本示例仅作为示例说明,具体实施中,也可以以无线帧、时隙或符号中的一种时间粒度对资源池内的资源进行编号。
方式3,在每个编号周期内对侧行链路资源进行编号,resourceIndexTime为一个编号周期内侧行链路资源的编号(或者说序号)。
例如图7所述,编号周期为2个无线帧,从SFN=0或DFN=0开始,第一个编号周期T包括SFN=0和SFN=1,或DFN=0和DFN=1;一个载波上每个无线帧内中的子帧1到子帧5为侧行链路的资源池,因此,第一个编号周期T内包括10个侧行链路的子帧,编号周期内的编号分别为0至9。
可选的,编号周期T也可以定义为资源池周期的倍数,例如,编号周期的时间长度等于2倍的资源池周期长度。
可选的,一个编号周期T可以从SFN=0或DFN=0后的一个时间偏移后开始。
具体实施中,也可以以无线帧、时隙或符号中的一种时间粒度对资源池内的资源进行 编号。
下面举例说明终端设备根据目的层2标识和/或第三映射关系,确定该广播业务或组播业务数据的时域资源或频域资源。
例如,该第三映射规则为(destination Layer-2 ID)mod 2=resourceIndexTime mod 2。resourceIndexTime根据上述方式3确定,编号周期可以为两个无线帧。根据该第三规则可以确定destination Layer-2 ID为1001的广播业务或组播业务可以在编号周期内资源编号为奇数的侧行链路资源上进行传输,而destination Layer-2 ID为1002的广播/组播业务可以在编号周期内资源编号为偶数的侧行链路资源上进行传输。
一种实施方式中,终端设备可以通过上述第三映射关系确定一个广播业务或组播业务的数据新传和/或数据重传资源,即广播业务或组播业务的发送设备在通过目的标识确定的侧行链路资源上发送新传数据和/或重传数据,该广播业务或组播业务的接收设备在通过该目的标识确定的侧行链路资源上监听是否有该广播业务或组播业务的新传数据和/或重传数据。
另一种实施方式中,终端设备可以通过上述第三映射关系确定一个广播业务或组播业务进行新传资源,广播业务或组播业务的发送设备在通过目的标识确定的侧行链路资源上发送新传数据,并且在SCI中指示重传的时频域资源位置,当接收终端设备对数据解析失败后,在该SCI中所指示的重传资源位置接收重传数据;
另一种实施方式中,通过协议预定义、***预配置或网络通过广播信令或RRC专用信令配置中的一种或多种方式配置广播业务或组播业务相关连的计时器A,例如可以写作harqRTT-Timer和/或计时器B,例如可以写作harqRetx-Timer,对于具体名称本申请不作限定。示例性的,计时器harqRTT-Timer用于指示同一HARQ进程中距离下一次数据重传的最小时长,计时器harqRetx-Timer,用于指示检测和/或接收重传数据的最大时长。当接收设备在通过目的标识确定侧行链路资源上监听到新传数据或重传数据,则启动该新传数据或该重传数据的HARQ进程对应的计时器harqRTT-Timer,可选的,终端设备可以停止该HARQ进程对应的计时器harqRetx-Timer。在上述步骤中,终端设备可以在侧行链路资源上接收到新传数据和/或重传数据的一段时间后才启动harqRTT-Timer,如K个子帧/时隙/符号之后,或终端设备反馈了NACK之后;终端设备也可以根据SCI中的指示信息确定该次传输之后没有预留的重传时频域资源位置,才启动harqRTT-Timer。当该计时器harqRTT-Timer超时后,启动HARQ进程对应的该计时器harqRetx-Timer;或者当计时器harqRTT-Timer超时并且接收设备对本次接收到的数据解析失败或者反馈了NACK后,启动该计时器harqRetx-Timer。在计时器harqRetx-Timer运行期间接收设备持续监听侧行链路上的数据传输,如SCI和/或数据。
本实施例提供的技术方案也可以扩展到单播通信方式,例如,终端设备通过单播业务的目的标识和/或第三映射关系,确定单播业务数据传输的时域资源或频域资源,但本申请不限于此。
根据本申请的方案,能够实现接收设备根据广播或组播的源设备标识确定广播或组播信息的资源位置,能够避免终端设备在所有侧行链路资源上监听广播或组播信息,达到终端设备节能的目的。
需要说明的是,在具体实施中可以选择图2、图4中的部分步骤进行实施,还可以调 整图示中步骤的顺序进行实施,本申请对此不做限定。应理解,执行图示中的部分步骤或调整步骤的顺序进行具体实施,均落在本申请的保护范围内。
以上,结合图2至图7详细说明了本申请实施例提供的方法。以下,结合图8、图9详细说明本申请实施例提供的装置。
图8是本申请实施例提供的通信装置的示意性框图。如图8所示,该通信装置1500可以包括处理单元1510和收发单元1520。
在一种可能的设计中,该通信装置1500可对应于上文方法实施例中的终端设备A,,或者配置于(或用于)终端设备A中的芯片或终端设备B中的芯片。
应理解,该通信装置1500可对应于根据本申请实施例的方法200、400中的终端设备A,该通信装置1500可以包括用于执行图2、图4中的方法200、400中终端设备A执行的方法的单元。该通信装置1500中的各单元和上述其他操作和/或功能分别为了实现图2、图4中的方法200、400的相应流程。
示例性的,当该通信装置1500用于执行图2中的方法200,收发单元1520可用于执行方法200中的S220、S240、S270,处理单元1510可用于执行方法200中的S210,S260。当该通信装置1500用于执行图4中的方法400,收发单元1520可用于执行方法200中的S420、S440、S460,处理单元1510可用于执行方法400中的S410、S450。应理解,各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明,为了简洁,在此不再赘述。
还应理解,该通信装置1500为配置于(或用于)终端设备中的芯片时,该通信装置1500中的收发单元1520可以为芯片的输入/输出接口或电路,该通信装置1500中的处理单元1510可以为芯片中的处理器。
可选地,通信装置1500还可以包括处理单元1510,该处理单元1510可以用于处理指令或者数据,以实现相应的操作。
可选地,通信装置1500还可以包括存储单元,该存储单元可以用于存储指令或者数据,处理单元1510可以执行该存储单元中存储的指令或者数据,以使该通信装置实现相应的操作,该通信装置1500中的该通信装置1500中的收发单元1520为可对应于图9中示出的终端设备1600中的收发器1610,存储单元可对应于图9中示出的终端设备1600中的存储器。
应理解,各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明,为了简洁,在此不再赘述。
还应理解,该通信装置1500为终端设备A时,该通信装置1500中的收发单元1520为可通过通信接口(如收发器或输入/输出接口)实现,例如可对应于图9中示出的终端设备1600中的收发器1610,该通信装置1500中的处理单元1510可通过至少一个处理器实现,例如可对应于图9中示出的终端设备1600中的处理器1620,该通信装置1500中的处理单元1510可通过至少一个逻辑电路实现。
在另一种可能的设计中,该通信装置1500可对应于上文方法实施例中的终端设备B或终端设备C,或者配置于(或用于)终端设备B或终端设备C中的芯片或终端设备B中的芯片。
应理解,该通信装置1500可对应于根据本申请实施例的方法200、400中的终端设备 B或终端设备C,该通信装置1500可以包括用于执行图2、图4中的方法200、400中终端设备B或终端设备C执行的方法的单元。该通信装置1500中的各单元和上述其他操作和/或功能分别为了实现图2、图4中的方法200、400的相应流程。
示例性的,当该通信装置1500用于执行图2中的方法200,收发单元1520可用于执行方法200中的S220、S240、S250、S270,处理单元1510可用于执行方法200中的S230。当该通信装置1500用于执行图4中的方法400,收发单元1520可用于执行方法200中的S420、S440、S460,处理单元1510可用于执行方法400中的S430。应理解,各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明,为了简洁,在此不再赘述。
还应理解,该通信装置1500为配置于(或用于)终端设备中的芯片时,该通信装置1500中的收发单元1520可以为芯片的输入/输出接口或电路,该通信装置1500中的处理单元1510可以为芯片中的处理器。
可选地,通信装置1500还可以包括处理单元1510,该处理单元1510可以用于处理指令或者数据,以实现相应的操作。
可选地,通信装置1500还可以包括存储单元,该存储单元可以用于存储指令或者数据,处理单元1510可以执行该存储单元中存储的指令或者数据,以使该通信装置实现相应的操作,该通信装置1500中的该通信装置1500中的收发单元1520为可对应于图9中示出的终端设备1600中的收发器1610,存储单元可对应于图9中示出的终端设备1600中的存储器。
应理解,各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明,为了简洁,在此不再赘述。
还应理解,该通信装置1500为终端设备B或终端设备C时,该通信装置1500中的收发单元1520为可通过通信接口(如收发器或输入/输出接口)实现,例如可对应于图9中示出的终端设备1600中的收发器1610,该通信装置1500中的处理单元1510可通过至少一个处理器实现,例如可对应于图9中示出的终端设备1600中的处理器1620,该通信装置1500中的处理单元1510可通过至少一个逻辑电路实现。
在另一种可能的设计中,该通信装置1500可对应于上文方法实施例中的网络设备,或者配置于(或用于)网络设备中的芯片或终端设备B中的芯片。
应理解,该通信装置1500可对应于根据本申请实施例的方法200中的网络设备,该通信装置1500可以包括用于执行图2中的方法200中网络设备执行的方法的单元。该通信装置1500中的各单元和上述其他操作和/或功能分别为了实现图2中的方法200的相应流程。
示例性的,当该通信装置1500用于执行图2中的方法200,收发单元1520可用于执行方法200中的S250。应理解,各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明,为了简洁,在此不再赘述。
还应理解,该通信装置1500为配置于(或用于)网络设备中的芯片时,该通信装置1500中的收发单元1520可以为芯片的输入/输出接口或电路,该通信装置1500中的处理单元1510可以为芯片中的处理器。
可选地,通信装置1500还可以包括处理单元1510,该处理单元1510可以用于处理指令或者数据,以实现相应的操作。
可选地,通信装置1500还可以包括存储单元,该存储单元可以用于存储指令或者数据,处理单元1510可以执行该存储单元中存储的指令或者数据,以使该通信装置实现相应的操作,该通信装置1500中的该通信装置1500中的收发单元1520为可对应于图10中示出的网络设备1700中的收发器1710,存储单元可对应于图10中示出的网络设备1700中的存储器。
应理解,各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明,为了简洁,在此不再赘述。
还应理解,该通信装置1500为网络设备时,该通信装置1500中的收发单元1520为可通过通信接口(如收发器或输入/输出接口)实现,例如可对应于图10中示出的网络设备1700中的收发器1710,该通信装置1500中的处理单元1510可通过至少一个处理器实现,例如可对应于图10中示出的网络设备1700中的处理器1720,该通信装置1500中的处理单元1510可通过至少一个逻辑电路实现。
图9是本申请实施例提供的终端设备1600的结构示意图。该终端设备1600可应用于如图1所示的***中,执行上述方法实施例中终端设备的功能。如图所示,该终端设备1600包括处理器1620和收发器1610。可选地,该终端设备1600还包括存储器。示例性的,处理器1620、收发器1610和存储器之间可以通过内部连接通路互相通信,传递控制和/或数据信号,该存储器用于存储计算机程序,该处理器1620用于执行该存储器中的该计算机程序,以控制该收发器1610收发信号。可选地,该终端设备1600可以包括总线***1640,该收发器1610、处理器1620和存储器1630之间可以通过总线***传递信息。
上述处理器1620可以和存储器可以合成一个处理装置,处理器1620用于执行存储器中存储的程序代码来实现上述功能。具体实现时,该存储器也可以集成在处理器1620中,或者独立于处理器1620。该处理器1620可以与图8中的处理单元对应。
上述收发器1610可以与图8中的收发单元对应。收发器1610可以包括接收器(或称接收机、接收电路)和发射器(或称发射机、发射电路)。示例性的,接收器用于接收信号,发射器用于发射信号。
应理解,图9所示的终端设备1600能够实现图2、图4所示方法实施例中涉及终端设备的各个过程。终端设备1600中的各个模块的操作和/或功能,分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述,为避免重复,此处适当省略详细描述。
上述处理器1620可以用于执行前面方法实施例中描述的由终端设备内部实现的动作,而收发器1610可以用于执行前面方法实施例中描述的终端设备向网络设备发送或从网络设备接收的动作。具体请见前面方法实施例中的描述,此处不再赘述。
可选地,上述终端设备1600还可以包括电源,用于给终端设备中的各种器件或电路提供电源。
除此之外,为了使得终端设备的功能更加完善,该终端设备1600还可以包括输入单元、显示单元、音频电路、摄像头和传感器等中的一个或多个,所述音频电路还可以包括扬声器、麦克风等。
图10是本申请实施例提供的网络设备1700的结构示意图。该网络设备1700可应用于如图1所示的***中,执行上述方法实施例中终端设备的功能。如图所示,该网络设备 1700包括处理器1720和收发器1710。可选地,该网络设备1700还包括存储器。示例性的,处理器1720、收发器1710和存储器之间可以通过内部连接通路互相通信,传递控制和/或数据信号,该存储器用于存储计算机程序,该处理器1720用于执行该存储器中的该计算机程序,以控制该收发器1710收发信号。可选地,该网络设备1700的该收发器1710可以包括天线和\或射频电路。
应理解,图10所示的网络设备1700能够实现图2、图4所示方法实施例中涉及网络设备的各个过程。网络设备1700中的各个模块的操作和/或功能,分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述,为避免重复,此处适当省略详细描述。
应理解,图10所示出的网络设备1700仅为网络设备的一种可能的架构,而不应对本申请构成任何限定。本申请所提供的方法可适用于其他架构的网络设备。例如,包含CU、DU和AAU的网络设备等。本申请对于网络设备的具体架构不作限定。
本申请实施例还提供了一种处理装置,包括处理器和接口;所述处理器用于执行上述任一方法实施例中的方法。
应理解,上述处理装置可以是一个或多个芯片。例如,该处理装置可以是现场可编程门阵列(field programmable gate array,FPGA),可以是专用集成芯片(application specific integrated circuit,ASIC),还可以是***芯片(system on chip,SoC),还可以是中央处理器(central processor unit,CPU),还可以是网络处理器(network processor,NP),还可以是数字信号处理电路(digital signal processor,DSP),还可以是微控制器(micro controller unit,MCU),还可以是可编程控制器(programmable logic device,PLD)或其他集成芯片。
在实现过程中,上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。为避免重复,这里不再详细描述。
应注意,本申请实施例中的处理器可以是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本申请实施例中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。示例性的,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),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如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(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DR RAM)。应注意,本文描述的***和方法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。
根据本申请实施例提供的方法,本申请还提供一种计算机程序产品,该计算机程序产品包括:计算机程序代码,当该计算机程序代码由一个或多个处理器执行时,使得包括该处理器的装置执行图2、图4所示实施例中的方法。
根据本申请实施例提供的方法,本申请还提供一种计算机可读存储介质,该计算机可读存储介质存储有程序代码,当该程序代码由一个或多个处理器运行时,使得包括该处理器的装置执行图2、图4所示实施例中的方法。
根据本申请实施例提供的方法,本申请还提供一种***,其包括前述的一个或多个网络设备。该***还可以包括前述的一个或多个终端设备。
上述各个装置实施例中网络设备与终端设备和方法实施例中的网络设备或终端设备完全对应,由相应的模块或单元执行相应的步骤,例如通信单元(收发器)执行方法实施例中接收或发送的步骤,除发送、接收外的其它步骤可以由处理单元(处理器)执行。具体单元的功能可以参考相应的方法实施例。示例性的,处理器可以为一个或多个。
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。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机指令时,全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如,高密度数字视频光盘(digital video disc,DVD))、或者半导体介质(例如,固态硬盘(solid state disc,SSD))等。
上述各个装置实施例中网络设备与终端设备和方法实施例中的网络设备或终端设备完全对应,由相应的模块或单元执行相应的步骤,例如通信单元(收发器)执行方法实施例中接收或发送的步骤,除发送、接收外的其它步骤可以由处理单元(处理器)执行。具 体单元的功能可以参考相应的方法实施例。其中,处理器可以为一个或多个。
在本说明书中使用的术语“部件”、“模块”、“***”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件、或执行中的软件。例如,部件可以是但不限于,在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序和/或计算机。通过图示,在计算设备上运行的应用和计算设备都可以是部件。一个或多个部件可驻留在进程和/或执行线程中,部件可位于一个计算机上和/或分布在2个或更多个计算机之间。此外,这些部件可从在上面存储有各种数据结构的各种计算机可读介质执行。部件可例如根据具有一个或多个数据分组(例如来自与本地***、分布式***和/或网络间的另一部件交互的二个部件的数据,例如通过信号与其它***交互的互联网)的信号通过本地和/或远程进程来通信。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
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。
在本申请所提供的几个实施例中,应该理解到,所揭露的***、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个***,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
在上述实施例中,各功能单元的功能可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令(程序)。在计算机上加载和执行所述计算机程序指令(程序)时,全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质,(例如,软盘、硬盘、 磁带)、光介质(例如,DVD)、或者半导体介质(例如固态硬盘(solid state disk,SSD))等。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。
Claims (30)
- 一种无线通信方法,其特征在于,包括:第一终端设备确定第一非连续接收DRX的第一配置信息,所述第一DRX用于控制所述第一终端设备的接收侧行链路的数据;所述第一终端设备向第二终端设备发送所述第一配置信息,所述第二终端设备为与所述第一终端设备建立了侧行链路连接的终端设备。
- 根据权利要求1所述的方法,其特征在于,所述第一配置信息包括以下一项或多项信元:所述第一DRX的周期、所述第一DRX的起始偏移量、所述第一DRX的时隙偏移量、第一计时器的信息或第二计时器的信息,其中,所述第一计时器的信息用于配置每个所述第一DRX周期内DRX的激活时长,所述第二计时器的信息用于配置所述第一终端设备接收到一个侧行链路传输后DRX激活时间的持续时长。
- 根据权利要求1所述的方法,其特征在于,所述第一终端设备确定第一非连续接收DRX的第一配置信息,包括:所述第一终端设备从第一DRX的一个或多个配置信息中确定第一配置信息,其中,所述一个或多个配置信息为所述第一终端设备***预设的或网络设备为所述第一终端设备配置的。
- 根据权利要求3所述的方法,其特征在于,所述第一终端设备从第一DRX的一个或多个配置信息中确定第一配置信息,包括:所述第一终端设备根据侧行链路业务的QoS需求从侧行链路DRX的一个或多个配置信息中确定第一配置信息。
- 根据权利要求1至4中任一项所述的方法,其特征在于,所述方法还包括:所述第一终端设备接收所述第二终端设备发送的所述第一DRX的第二配置信息,所述第二配置信息包括混合自动重传请求HARQ相关的配置信息。
- 根据权利要求1至5中任一项所述的方法,其特征在于,所述第一终端设备在满足以下一项或多项的情况下开始执行所述第一DRX操作:发送所述第一配置信息后;接收到所述第二终端设备接收第一配置信息的确认反馈后;向所述第二终端设备发送第一指示信息后,所述第一指示信息用于指示开始执行所述第一DRX;接收到所述第二终端设备发送的第二配置信息后;向所述第二终端设备发送接收第二配置信息的确认反馈后;其中,所述第二配置信息包括HARQ相关的配置信息。
- 根据权利要求5或6所述的方法,其特征在于,所述第二配置信息包括第三计时器的信息和/或第四计时器的信息,其中所述第三计时器的信息用于指示距离同一HARQ进程的下一次数据重传的最小时长,所述第四计时器的信息用于指示检测和/或接收重传 数据的最大时长。
- 根据权利要求5至7中任一项所述的方法,其特征在于,所述方法还包括:所述第一终端设备将所述第二配置信息保存在所述第二终端设备的上下文信息中。
- 根据权利要求7所述的方法,其特征在于,所述第一终端设备在开始执行所述第一DRX操作后,在以下一种或多种情况下处于DRX激活时间:第一计时器运行期间、第二计时器运行期间、第四计时器运行期间、需要接收侧行链路HARQ反馈的时刻、在数据重传资源的时间范围内、等待接收信道状态信息CSI报告期间、接收到单播建立请求且在单播建立完成前、或接收到单播建立请求后。
- 根据权利要求5所述的方法,其特征在于,所述第一终端设备向第二终端设备发送所述第一配置信息,包括:所述第一终端设备向多个第二终端设备发送所述第一配置信息;以及,所述第一终端设备接收所述第二终端设备发送的所述第一DRX的第二配置信息,包括:所述第一终端设备接收所述多个第二终端设备发送的多个第二配置信息,所述多个第二配置信息与所述多个第二终端设备一一对应,其中,所述第二配置信息具体包括所对应的所述第二终端设备的HARQ进程相关的配置信息。
- 根据权利要求10所述的方法,其特征在于,在所述多个第二终端设备中的两个第二终端设备的标识均为第一标识的情况下,所述方法还包括:所述第一终端设备向所述两个第二终端设备中的一个第二终端设备发送第二指示信息,所述第二指示信息用于指示所述一个第二终端设备更新所述标识,或者,所述第一终端设备将与所述两个第二终端设备中的一个第二终端设备通信时所采用的所述第一终端设备的标识更新为第二标识;所述第一终端设备向所述一个第二终端设备发送第三指示信息,所述第三指示信息用于指示所述第一终端设备的标识更新为第二标识。
- 一种无线通信方法,其特征在于,包括:第二终端设备接收第一终端设备发送的第一非连续接收DRX的第一配置信息,所述第一DRX用于控制所述第一终端设备的接收侧行链路的数据;所述第二终端设备根据所述第一配置信息向所述第一终端设备发送侧行链路的数据。
- 根据权利要求12所述的方法,其特征在于,所述第一配置信息包括以下一项或多项信元:所述第一DRX的周期、所述第一DRX的起始偏移量、所述第一DRX的时隙偏移量、第一计时器的信息或第二计时器的信息,其中,所述第一计时器的信息用于配置每个所述第一DRX周期内DRX的激活时长,所述第二计时器的信息用于配置所述第一终端设备接收到调度新传数据的控制信息后DRX的激活时长。
- 根据权利要求12或13所述的方法,其特征在于,所述方法还包括:所述第二终端设备向所述第一终端设备发送所述第一DRX的第二配置信息,所述第二配置信息包括混合自动重传请求HARQ相关的配置信息。
- 根据权利要求14所述的方法,其特征在于,所述第二配置信息包括第三计时器 的信息和/或第四计时器的信息,其中所述第三计时器的信息用于指示同一HARQ进程中距离下一次数据重传的最小时长,所述第四计时器的信息用于指示检测和/或接收重传数据的最大时长。
- 根据权利要求14或15所述的方法,其特征在于,所述第二配置信息为所述第二终端设备的***预设的或网络设备为所述第二终端设备配置的,或者,所述第二配置信息为所述第二终端设备根据所述第二终端设备的相关信息确定的,所述相关信息包括信道忙碌率CBR、速度、业务的QoS需求中的一项或多项。
- 根据权利要求12至16中任一项所述的方法,其特征在于,所述方法还包括:所述第二终端设备将所述第一配置信息保存在所述第一终端设备的上下文信息中。
- 根据权利要求12至17中任一项所述的方法,其特征在于,所述方法还包括:所述第二终端设备在满足以下一项或多项的情况下开始执行所述第一DRX操作:接收到所述第一配置信息后;发送所述第二终端设备接收第一配置信息的确认反馈后;接收到第一指示信息后,所述第一指示信息用于指示激活所述第一DRX;向所述第一终端设备发送的第二配置信息后;接收到所述第一终端设备发送的接收第二配置信息的确认反馈后;其中,所述第二配置信息包括HARQ相关的配置信息。
- 根据权利要求12至18中任一项所述的方法,其特征在于,所述方法还包括:所述第二终端设备确定所述第一终端设备在以下一种或多种情况下处于DRX激活时间,所述第二终端设备可以在所述第一终端设备的所述接收状态向所述第一终端设备发送数据:第一计时器运行期间、第二计时器运行期间、第四计时器运行期间、需要接收侧行链路HARQ反馈的时刻、在数据重传资源的时间范围内、等待接收信道状态信息CSI报告期间、接收到单播建立请求且在单播建立完成前、或开始所述第一DRX操作前。
- 根据权利要求19所述的方法,其特征在于,所述方法还包括:所述第二终端设备接收所述第一终端设备发送的第二指示信息,所述第二指示信息用于指示所述第二终端设备更新标识,或者,所述第二终端设备接收所述第一终端设备发送的第三指示信息,所述第三指示信息用于指示所述第一终端设备的标识更新为第二标识。
- 根据权利要求14至16中任一项所述的方法,其特征在于,所述第二终端设备向网络设备发送所述第一配置信息和/或所述第二配置信息。
- 一种无线通信方法,其特征在于,包括:网络设备接收第二终端设备发送第一配置信息和/或第二配置信息,所述第一配置信息和/或第二配置信息为第一DRX的配置信息,所述第一DRX用于所述第一终端设备的接收侧行链路的数据,所述第一配置信息为所述第一终端设备确定的所述第一DRX的配置信息,所述第二配置信息为所述第二终端设备确定的所述第一DRX的配置信息;所述网络设备向所述第二终端设备发送第四指示信息,所述第四指示信息用于指示第一时频资源,所述第一时频资源为所述第二终端设备用于向所述第一终端设备发送数据的资源,所述第一时频资源在所述第一终端设备的所述第一DRX激活时间内。
- 根据权利要求22所述的方法,其特征在于,所述第一配置信息包括以下一项或多项信元:所述第一DRX的周期、所述第一DRX的起始位置偏移量、第一计时器的信息或第二计时器的信息,其中,所述第一计时器的信息用于指示每个所述第一DRX周期内DRX的激活时长,所述第二计时器的信息用于指示所述第一终端设备接收到调度新传数据的控制信息后DRX的激活时长。
- 根据权利要求22或23所述的方法,其特征在于,所述第二配置信息包括第三计时器的信息和/或第四计时器的信息,其中所述第三计时器的信息用于指示同一HARQ进程中距离下一次数据重传的最小时长,所述第四计时器的信息用于指示中检测和/或接收重传数据的最大时长。
- 一种无线通信方法,其特征在于,包括:第一终端设备根据广播业务或组播业务的目的标识,确定用于承载所述广播业务或组播业务的数据的第一资源;所述第一终端设备在所述第一资源上接收或发送所述广播业务或组播业务的数据。
- 根据权利要求25所述的方法,其特征在于,所述第一终端设备根据广播业务或组播业务的目的标识,确定用于承载所述广播业务或组播业务的数据的第一资源,包括:所述第一终端设备根据广播业务或组播业务的目的标识和第三映射关系,确定用于承载所述广播业务或组播业务的数据的第一资源,所述第三映射关系包括以下一种或多种:目的标识mod N1=(时域资源编号/K1)mod M1;目的标识mod N2=(频域资源编号/K2)mod M2,其中,mod表示取模值,N1、N2、K1、K2、M1或M2中的一项或多项为协议预定义的、网络设备通过RRC专用消息或网络设备通过***消息配置的参数值。
- 一种通信装置,其特征在于,包括至少一个处理器,与存储器耦合;所述存储器用于存储程序或指令;所述至少一个处理器用于执行所述程序或指令,以使所述装置实现如权利要求1至26中任一项所述的方法。
- 一种计算机可读存储介质,包括计算机程序,当其由一个或多个处理器执行时,使得包括所述处理器的装置执行如权利要求1至26中任一项所述的方法。
- 一种芯片,其特征在于,包括至少一个处理器和通信接口;所述通信接口用于接收输入所述芯片的信号或用于从所述芯片输出信号,所述处理器与所述通信接口通信且通过逻辑电路或执行代码指令用于实现如权利要求1至26中任一项所述的方法。
- 一种计算机程序产品,其特征在于,所述计算机程序产品包括:计算机程序,当所述计算机程序被运行时,使得计算机执行如权利要求1至26中任一项所述的方法。
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