WO2022236682A1 - 侧行传输的方法、终端设备和网络设备 - Google Patents
侧行传输的方法、终端设备和网络设备 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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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
Definitions
- the embodiments of the present application relate to the field of communications, and in particular to a method for lateral transmission, a terminal device, and a network device.
- the present application provides a method for sideline transmission, a terminal device and a network device.
- the sending end indicates the version information of the data packet or the PDCP SDU type of the data packet through the associated information of the sent data packet, so that the receiving end
- the PDCP SDU type corresponding to the information or data packet determines whether to receive the data packet, which is beneficial to avoid the waste of resources caused by receiving the unsupported version of the data packet.
- a method for lateral transmission including: the first terminal determines the version information of the first data packet or the first data packet according to the associated information of the first data packet sent by the second terminal Packet Data Convergence Protocol PDCP Service Data Unit SDU type;
- a method for lateral transmission including: the second terminal sends a first data packet to the first terminal, wherein the associated information of the first data packet is used to determine the information of the first data packet The version information or the packet data convergence protocol PDCP service data unit SDU type of the first data packet.
- a sidelink transmission method including: a network device sends first information to a terminal device, wherein the first information is used to determine version information of a sidelink data packet or the sidelink data packet Packet Data Convergence Protocol PDCP Service Data Unit SDU type.
- a terminal device configured to execute the method in any one of the above-mentioned first aspect to the second aspect or in each implementation manner thereof.
- the terminal device includes a functional module configured to execute any one of the above first aspect to the second aspect or the method in each implementation manner thereof.
- a network device configured to execute the method in the above third aspect or various implementation manners thereof.
- the network device includes a functional module for executing the method in the above third aspect or each implementation manner thereof.
- a terminal device including a processor and a memory.
- the memory is used to store a computer program
- the processor is used to call and run the computer program stored in the memory, and execute any one of the above-mentioned first to second aspects or the method in each implementation manner.
- a network device including a processor and a memory.
- the memory is used to store a computer program
- the processor is used to call and run the computer program stored in the memory to execute the method in the above third aspect or its various implementations.
- a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute any one of the above-mentioned first to third aspects or the method in each implementation manner thereof.
- a computer program product including computer program instructions, the computer program instructions causing a computer to execute any one of the above first to third aspects or the method in each implementation manner thereof.
- a computer program which, when running on a computer, causes the computer to execute any one of the above-mentioned first to third aspects or the method in each implementation manner.
- a chip is provided for implementing any one of the first aspect to the third aspect or the method in each implementation manner thereof.
- the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the device executes any one of the above-mentioned first to third aspects or any of the implementations thereof. method.
- the first terminal when the second terminal sends the first data packet to the first terminal, the first terminal can determine whether to receive the first data packet according to the associated information of the first data packet, for example, according to The associated information of the first data packet determines the version information of the first data packet or the PDCP SDU type of the first data packet, and further according to the version information of the first data packet or the PDCP SDU type of the first data packet, Determining whether to receive the first data packet is beneficial to avoid resource waste caused by receiving a data packet of an unsupported version.
- Fig. 1 is a schematic diagram of a communication system architecture provided by the present application.
- Fig. 2 is a schematic diagram of another communication system architecture provided by the present application.
- Fig. 3 is a schematic diagram of unicast sidelink communication provided by the present application.
- Fig. 4 is a schematic diagram of multicast sideline communication provided by the present application.
- Fig. 5 is a schematic diagram of broadcast sideline communication provided by the present application.
- FIG. 6 is a schematic diagram of the format of a MAC PDU according to an embodiment of the present application.
- FIG. 7 is a schematic diagram of the format of a MAC PDU subheader according to an embodiment of the present application.
- Fig. 8 is a schematic interactive diagram of a method for lateral transmission according to an embodiment of the present application.
- Fig. 9 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
- Fig. 10 is a schematic block diagram of another terminal device provided according to an embodiment of the present application.
- Fig. 11 is a schematic block diagram of a network device provided according to an embodiment of the present application.
- Fig. 12 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
- Fig. 13 is a schematic block diagram of a chip provided according to an embodiment of the present application.
- Fig. 14 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
- the technical solution of the embodiment of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, code division multiple access (Code Division Multiple Access, CDMA) system, broadband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) on unlicensed spectrum unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunications System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.
- GSM Global System of Mobile
- D2D Device to Device
- M2M Machine to Machine
- MTC Machine Type Communication
- V2V Vehicle to Vehicle
- V2X Vehicle to everything
- the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, may also be applied to a dual connectivity (Dual Connectivity, DC) scenario, and may also be applied to an independent (Standalone, SA) deployment Web scene.
- Carrier Aggregation, CA Carrier Aggregation
- DC Dual Connectivity
- SA independent deployment Web scene
- the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered as non-shared spectrum.
- the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, wherein the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
- user equipment User Equipment, UE
- access terminal user unit
- user station mobile station
- mobile station mobile station
- remote station remote terminal
- mobile device user terminal
- terminal wireless communication device
- wireless communication device user agent or user device
- the terminal device can be a station (STATION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as terminal devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
- PLMN Public Land Mobile Network
- the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites) superior).
- the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
- a virtual reality (Virtual Reality, VR) terminal device an augmented reality (Augmented Reality, AR) terminal Equipment
- wireless terminal equipment in industrial control wireless terminal equipment in self driving
- wireless terminal equipment in remote medical wireless terminal equipment in smart grid
- wireless terminal equipment in transportation safety wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
- the terminal device may also be a wearable device.
- Wearable devices can also be called wearable smart devices, which is a general term for the application of 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 worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
- Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
- the network device may be a device for communicating with the mobile device, and the network device may be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA , or a base station (NodeB, NB) in WCDMA, or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and an NR network A network device or a base station (gNB) in a network device or a network device in a future evolved PLMN network or a network device in an NTN network.
- AP Access Point
- BTS Base Transceiver Station
- NodeB, NB base station
- Evolutional Node B, eNB or eNodeB evolved base station
- LTE Long Term Evolution
- eNB evolved base station
- gNB base station
- the network device may have a mobile feature, for example, the network device may be a mobile device.
- the network equipment may be a satellite or a balloon station.
- the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous earth orbit (geosynchronous earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite. ) Satellite etc.
- the network device may also be a base station installed on land, water, and other locations.
- the network device may provide services for a cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, a cell corresponding to a base station), the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell), and the small cell here may include: a metro cell (Metro cell), a micro cell (Micro cell), a pico cell ( Pico cell), Femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
- the transmission resources for example, frequency domain resources, or spectrum resources
- the cell may be a network device (
- the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell)
- the small cell here may include: a metro cell (Metro cell), a micro cell (Micro
- the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship.
- a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
- the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.
- predefined or “preconfigured” can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices).
- the application does not limit its specific implementation.
- pre-defined may refer to defined in the protocol.
- the "protocol” may refer to a standard protocol in the communication field, for example, may include the LTE protocol, the NR protocol, and related protocols applied to future communication systems, which is not limited in the present application.
- Fig. 1 is a schematic diagram of a communication system to which the embodiment of the present application is applicable.
- the transmission resources of the vehicle-mounted terminals (vehicle-mounted terminal 121 and vehicle-mounted terminal 122 ) are allocated by the base station 110 , and the vehicle-mounted terminals transmit data on the sidelink according to the resources allocated by the base station 110 .
- the base station 110 may allocate resources for a single transmission to the terminal, or may allocate resources for semi-static transmission to the terminal.
- Fig. 2 is a schematic diagram of another communication system to which the embodiment of the present application is applicable.
- the vehicle-mounted terminals (vehicle-mounted terminal 131 and vehicle-mounted terminal 132 ) autonomously select transmission resources on sidelink resources for data transmission.
- the vehicle-mounted terminal may select transmission resources randomly, or select transmission resources by listening.
- unicast transmission there is only one terminal at the receiving end, as shown in Figure 3, unicast transmission is performed between UE1 and UE2; for multicast transmission, the receiving end is all terminals in a communication group, or in a certain All terminals within the transmission distance, as shown in Figure 4, UE1, UE2, UE3 and UE4 form a communication group, in which UE1 sends data, and other terminal devices in the group are receiving terminals; for broadcast transmission mode, its receiving An end is any terminal around the transmitting terminal. As shown in FIG. 5 , UE1 is the transmitting terminal, and other terminals around it, UE2-UE6 are all receiving terminals.
- the transmitting terminal can generate a Media Access Control (Media Access Control, MAC) Protocol Data Unit (Protocol Data Unit, PDU) according to the data to be transmitted, and send the MAC PDU to the receiving terminal.
- Media Access Control Media Access Control
- PDU Protocol Data Unit
- a MAC PDU includes a MAC PDU subheader (subheader), 0 or at least one MAC sub-PDU (subPDU), and possibly padding bits.
- Figure 6 is an example of a MAC PDU format.
- a MAC subPDU can include a subheader of a MAC subPDU, and a subheader of a MAC subPDU can correspond to a MAC service data unit (service data unit, SDU) or a MAC control element (MAC Control Element, MAC CE) or Padding bits.
- SDU service data unit
- MAC CE MAC Control Element
- the subheader of a MAC subPDU may include at least one of the following fields:
- L length field, used to indicate the length of MAC SDU or MAC CE, in bytes
- LCID Logical Channel ID field.
- FIG. 7 is a schematic diagram of the format of a subheader of a MAC PDU. Among them, the meaning of each field in the subheader of the MAC PDU is as follows:
- V version field, which occupies 4 bits and is set to all 0;
- R reserved (reserved) bit, set to 0;
- SRC source address field, occupying 16 bits, carrying 16 bits of the most effective source layer 2 (layer2) identification (Identify, ID);
- DST Destination address field, which occupies 8 bits and carries the most effective 8-bit target layer 2 (layer2) ID.
- ARP Address Resolution Protocol
- PDCP Packet Data Convergence Protocol
- Fig. 3 is a schematic interaction diagram of a method for lateral transmission according to an embodiment of the present application. As shown in Fig. 3 , the method 300 may include at least part of the following:
- the second terminal sends the first data packet to the first terminal
- the first terminal determines the version information of the first data packet or the packet data convergence protocol PDCP service data unit SDU type of the first data packet according to the associated information of the first data packet sent by the second terminal;
- the first terminal when the second terminal sends the first data packet to the first terminal, the first terminal can determine whether to receive the first data packet according to the associated information of the first data packet , for example, determine the version information of the first data packet or the PDCP SDU type of the first data packet according to the associated information of the first data packet, further according to the version information of the first data packet or the first data packet.
- the PDCP SDU type determines whether to receive the first data packet, which is beneficial to avoid the waste of resources caused by receiving and parsing data of unsupported versions.
- the version information of the first data package is one of at least two versions.
- the at least two versions include a first version and a second version.
- the first version may include Rel-17
- the second version may include Rel-16.
- the first version supports ARP type packets
- the second version does not support ARP type packets
- the ARP-type data packet may be replaced by an ARP-type PDCP SDU or an ARP-type MAC PDU.
- the first data packet includes a MAC PDU.
- the PDCP SDU type can also be considered as the MAC SDU type.
- the PDCP SDU type may include an ARP type PDCP SDU and a non-ARP type PDCP SDU.
- the MAC SDU type may include an ARP type MAC SDU and a non-ARP type MAC SDU.
- the PDCP SDU type of the first data packet may refer to the PDCP SDU type of the data in the first data packet, or the PDCP SDU type of the MAC SDU in the first data packet .
- the PDCP SDU type of the first data packet may refer to: the first data packet is an ARP type PDCP SDU, or the first data packet is another type of PDCP SDU.
- the PDCP SDU type of the first data packet may refer to: the first data packet includes an ARP type PDCP SDU, or the first data packet includes other types of PDCP SDUs.
- the associated information of the first data packet may be used to indicate the version information of the first data packet, or whether the receiving terminal of the first data packet needs to support ARP type data packet, or, whether the first data packet includes an ARP type PDCP SDU.
- Whether the receiving end terminal of the first data packet needs to support ARP type data packets may refer to:
- the receiving end terminal of the first data packet needs to support ARP type PDCP SDU, or whether the receiving end terminal of the first data packet needs to have the ability to receive ARP type data packets, or, the first data packet Whether the receiving end of the packet needs to support the first version of the packet.
- sending or receiving the ARP type data packet is a capability that the terminal of the first version must support.
- the data packet of the first version must include an ARP type PDCP SDU.
- indicating the version information of the first data packet is equivalent to indicating the PDCP SDU type of the first data packet.
- sending or receiving the ARP type data packet is an optional capability of the terminal of the first version.
- the first version of the data packet may include an ARP-type PDCP SDU, or may not include an ARP-type PDCP SDU.
- the version information of the first data packet includes a transmission specification (Tx profile) of the first data packet. That is to say, the Tx profile of the first data packet may be indicated through the associated information of the first data packet.
- Tx profile transmission specification
- the first terminal and the second terminal have not established a PC5 RRC connection. Therefore, the Tx profile information cannot be directly sent from the sender to the receiver. In this case, the first data
- the associated information of the package indicates version information such as Tx profile.
- the associated information of the first data packet may refer to any information associated with the first data packet, for example, the resource information of the first data packet, scheduling information, the The information carried in the first data packet, etc.
- the associated information of the first data packet includes sidelink control information (Sidelink Control Information, SCI) for scheduling the first data packet.
- SCI Sidelink Control Information
- version information of the scheduled first data packet may be indicated at the same time.
- the SCI includes first indication information, and the first indication information is used to indicate version information of the first data packet.
- the first indication information is carried in a reserved field in the SCI, or in a reserved bit, or an invalid bit in an existing field in the SCI may be used to indicate the version information of the first data packet, This application is not limited thereto.
- the first indication information includes at least one bit, and a value of the at least one bit is used to indicate a target version corresponding to the at least two versions of the version information of the first data packet. For example, a value of 0 indicates that the target version is the first version, and a value of 1 indicates that the target version is the second version.
- the associated information of the first data packet includes a resource pool for transmitting the first data packet.
- the terminal device is configured with a first mapping relationship
- the first mapping relationship is the mapping relationship between the resource pool used for data packet transmission and the version information of the data packet, therefore, the receiving end of the data packet can receive the data according to the The resource pool of the package determines the version information corresponding to the data package.
- the first mapping relationship may be configured by a network device, or predefined, or sent by the second terminal to the first terminal.
- the second terminal and the first terminal establish After the PC5 RRC connection, the second terminal may send the first mapping relationship to the first terminal.
- the network device can configure corresponding resource pools for the sidelink services of the first version and the second version, for example, including a sending resource pool and a receiving resource pool, and the resources used by the receiving end to receive data packets pool, and determine the version information corresponding to the data packet.
- the first version of the network device configuration corresponds to the first resource pool
- the second version corresponds to the second resource pool. If the first terminal receives the first data packet in the first resource pool, the version of the first data packet can be determined. Information is first edition.
- the first terminal may determine the version information of the first data packet according to the information carried in the first data packet.
- the information carried in the first data packet includes information in the MAC PDU subheader of the first data packet.
- the information in the subheader of the MAC PDU of the first data packet indicates the version information of the first data packet, or whether the receiving end terminal of the first data packet needs to support the PDCP SDU of the ARP type, so that the first data packet
- the receiving terminal only needs to parse the first data packet to the MAC layer to know whether it supports the version of the first data packet, and then determine whether to receive subsequent data.
- the information carried in the first data packet includes at least one of the following:
- Target address information in the MAC PDU subheader header in the first data packet version information in the MAC PDU subheader in the first data packet, reservation information in the MAC PDU subheader in the first data packet .
- the first terminal is configured with a second mapping relationship
- the second mapping relationship is used to characterize the mapping relationship between the destination address of the data packet and the version information of the data packet.
- the first terminal may acquire the destination address information of the first data packet, and further determine the version information of the first data packet according to the destination address information of the first data packet and the second mapping relationship.
- the first terminal may obtain the first destination address information from the DST field in the MAC PDU subheader of the first data packet, and obtain the second destination address information from the destination address information in the SCI scheduling the first data packet.
- Destination address information determining the destination address information of the first data packet according to the first destination address information and the second destination address information.
- the second mapping relationship is configured by a network device, or is sent by the second terminal to the first terminal, or is predefined.
- this application does not limit the specific manner in which the second terminal sends the second mapping relationship to the first terminal.
- the second terminal may send the second mapping relationship to the first terminal.
- the value of the V field in the MAC PDU subheader of the first data packet indicates the target version corresponding to at least two versions of the version information of the first data packet.
- the value of the V field is all "0", indicating that the first data packet is a second version of the data packet, for example, a Rel-16 type MAC PDU, and there is at least 1 bit in the V field If it is "1", it means that the first data packet is a data packet of the first version, for example, a MAC PDU of Rel-17 type.
- the value of at least one R field in the MAC PDU subheader of the first data packet indicates a target version corresponding to at least two versions of the version information of the first data packet.
- the value of the at least one R field is all "0", indicating that the first data packet is a data packet of the second version, for example, a MAC PDU of the Rel-16 type, and there is a The value of the R field is "1", which means that the first data packet is a data packet of the first version, for example, a MAC PDU of Rel-17 type.
- the S330 may include:
- the first terminal discards the first data packet;
- the first terminal receives the first data packet.
- the first terminal when the version of the first data packet is a version not supported by the first terminal, the first terminal performs overall discard processing on the first data packet (that is, does not receive the MAC PDU subheader data), or, when the version of the first data packet is the version supported by the first terminal, the first terminal performs overall reception processing on the first data packet (that is, receives the data after the MAC PDU subheader ).
- the first terminal when the first data packet is a data packet of the first version, the first terminal is a terminal of the first version, and the terminal of the first version supports sending or receiving the first
- the version of the data packet is a necessary capability (that is, the first terminal has the ability to receive the ARP type data packet)
- the first terminal determines the first data packet according to the version information of the first data packet Whether it is an ARP type data packet, the first data packet is further subjected to overall discarding processing or overall receiving processing.
- a MAC PDU can include at least one MAC subPDU, and each MAC subPDU can include a MAC SDU.
- the information in the subheader in the MAC subPDU in the first data packet can also be passed Indicate the PDCP SDU type of the MAC SDU in the MAC subPDU, for example, whether the MAC SDU contains ARP type PDCP SDU data, or whether the MAC SDU is ARP type PDCP SDU data, etc.
- the first terminal can determine the PDCP SDU type of the MAC SDU in each MAC subPDU according to the information in the subheader of each MAC subPDU in the first data packet (or in other words, whether the MAC SDU includes an ARP type PDCP SDU Data), so as to determine whether to receive the MAC SDU in each MAC subPDU, and can realize the more fine-grained reception control of the first data packet.
- the PDCP SDU type of the MAC SDU in the MAC subPDU may be indicated through the reserved information in the subheader of the MAC subPDU, for example, whether it is (or contains) ARP type PDCP SDU data.
- the first data packet includes a first MAC subPDU and a second MAC subPDU
- the first MAC subPDU includes a first subheader
- the second MAC subPDU includes a second subheader, which can be passed through the first subheader
- the reservation information in the first MAC subPDU indicates the PDCP SDU type of the MAC SDU in the first MAC subPDU
- the reservation information in the second subheader indicates the PDCP SDU type of the MAC SDU in the second MAC subPDU.
- the MAC SDU in the first MAC subPDU includes PDCP SDU data of the first version
- it is determined according to the reservation information in the second subheader that the MAC SDU in the second MAC subPDU The MAC SDU includes the second version of the PDCP SDU
- the first terminal supports the second version of the data packet, but does not support the first version of the data packet
- the first terminal does not receive the MAC SDU in the first MAC subPDU (for all The first MAC subPDU is discarded), and the MAC SDU in the second MAC subPDU is received.
- the PDCP SDU type of the MAC SDU in the MAC subPDU may be indicated through the Logic Channel Identification (LCID) in the subheader of the MAC subPDU, for example, whether it is ARP type PDCP SDU data.
- LCID Logic Channel Identification
- the first terminal is configured with a third mapping relationship, and the third mapping relationship is used to indicate the LCID corresponding to the ARP type PDCP SDU and the LCID corresponding to the non-ARP type PDCP SDU.
- corresponding LCIDs can be configured for different types of PDCP SDUs, so that when the second terminal can transmit PDCP SDUs of different versions, different LCID indications can be used in the corresponding MAC subPDUs.
- the third mapping relationship is configured by a network device, or is sent by the second terminal to the first terminal, or is predefined.
- the second terminal may send the third mapping relationship to the first terminal.
- the first data packet includes a first MAC subPDU and a second MAC subPDU
- the first MAC subPDU includes a first subheader
- the second MAC subPDU includes a second subheader, which can be passed through the first subheader
- the LCID in the first MAC subPDU indicates the PDCP SDU type of the MAC SDU in the first MAC subPDU
- the LCID in the second subheader indicates the PDCP SDU type of the MAC SDU in the second MAC subPDU.
- the first terminal does not receive the MAC SDU in the first MAC subPDU (that is, for the first MAC subPDU One MAC subPDU is discarded), and the MAC SDU in the second MAC subPDU is received.
- the method 300 further includes:
- the first terminal reports first capability information to the second terminal, where the first capability information is used to indicate whether the first terminal supports receiving ARP-type PDCP SDUs.
- the receiving end of the data packet may report to the sending end of the data packet whether it supports receiving the data packet of the first version, or in other words, whether it has the ability to receive the data packet of the first version.
- the method 200 further includes:
- the first terminal receives second capability information reported by the second terminal, where the second capability information is used to indicate whether the second terminal supports receiving ARP-type PDCP SDUs.
- the sending end of the data packet may report to the receiving end of the data packet whether it supports receiving the data packet of the first version, or in other words, whether it has the ability to receive the data packet of the first version.
- the sending end and receiving end of the data packet can exchange their ability to receive the first version of the data packet, so that in the subsequent side communication, the sending end of the data packet can send the appropriate version according to the receiving ability of the receiving end data packets, which is beneficial to avoid resource waste caused by unnecessary data packet parsing.
- this embodiment of the present application does not limit the specific manner in which the first terminal and the second terminal interact with each other to receive capabilities of data packets corresponding to the first version, for example, in unicast communication, multicast communication or broadcast communication interaction, etc.
- the second terminal may send the second capability information to the first terminal in unicast communication.
- the first terminal may also send the first capability information to the second terminal in unicast communication
- the second terminal may send the second capability information to the multiple terminals in multicast communication, where the multiple terminals include the first terminal.
- the first terminal may send the first capability information to the second terminal through a physical sidelink feedback channel (Physical Sidelink Feedback Channel, PSFCH).
- PSFCH Physical Sidelink Feedback Channel
- the second terminal may send the second capability information in broadcast communication.
- the first terminal may also send the first capability information through broadcast communication.
- the method 300 further includes:
- the second terminal sends capability information of the first target address to the network device, where the capability information of the first target address is used to indicate whether the first target address supports ARP-type PDCP SDUs, or, the first target address Whether the address supports version 1 packets.
- the first target address is the target address of the second terminal.
- the capability information of the first target address is reported to the network device through sidelink UEInformation. Further, the network device may send the capability information of the first target address to the first terminal.
- the first terminal may obtain the target address in the first data packet, and further combine the capability information of the first target address to determine whether the target address of the first data packet supports
- the PDCP SDU of the ARP type further determines whether to receive the first data packet.
- the first terminal may determine whether to receive the first data packet according to the associated information of the first data packet.
- a data packet for example, determine the version information of the first data packet according to the associated information of the first data packet, further determine whether to receive the first data packet according to the version information of the first data packet, or determine whether to receive the first data packet according to the
- the information carried in the first data packet determines the PDCP SDU type of the MAC SDU in each MAC subPDU in the first data packet, further according to the PDCP SDU type of the MAC SDU in the MAC subPDU in the first data packet Determining whether to receive the MAC SDU in each MAC subPDU in the first data packet helps to avoid the problem of waste of resources caused by not supporting receiving the first data packet after parsing the first data packet to the PDCP layer.
- Fig. 9 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application.
- the terminal device 400 includes:
- the processing unit 410 is configured to determine the version information of the first data packet or the type of the packet data convergence protocol PDCP service data unit SDU in the first data packet according to the associated information of the first data packet sent by the second terminal and determining whether to receive the first data packet according to the version information of the first data packet or the PDCP SDU type of the first data packet.
- the associated information of the first data packet includes at least one of the following:
- the SCI includes first indication information, and the first indication information is used to indicate version information of the first data packet.
- the terminal device is configured with a first mapping relationship, and the first mapping relationship is used to represent the mapping relationship between the resource pool and the version information of the data package.
- the first mapping relationship is configured by the network device, or is sent by the second terminal to the terminal device, or is predefined.
- the information carried in the first data packet includes at least one of the following:
- the terminal device is configured with a second mapping relationship, and the second mapping relationship is used to characterize the mapping relationship between the destination address of the data packet and the version information of the data packet.
- the second mapping relationship is configured by the network device, or is sent by the second terminal to the terminal device, or is predefined.
- the value of the version information in the MAC PDU subheader of the first data packet is used to indicate the target version corresponding to the version information of the first data packet in at least two versions, wherein, The at least two versions include a first version and a second version.
- the value of the reserved information in the MAC PDU subheader of the first data packet is used to indicate the target version corresponding to the version information of the first data packet in at least two versions, where , the at least two versions include a first version and a second version.
- the version information of the first data packet is the first version or the second version, wherein the first version supports sending or receiving PDCP SDUs of the Address Resolution Protocol ARP type, and the second version Sending or receiving PDCP SDUs of type ARP is not supported.
- the processing unit 410 is specifically used to:
- the terminal device When the version information of the first data packet is the first version, and the terminal device does not support receiving ARP-type PDCP SDUs, controlling the communication unit of the terminal device not to receive the first data packet; or
- the terminal device When the version information of the first data packet is the first version, and the terminal device supports receiving ARP-type PDCP SDUs, controlling the communication unit of the terminal device to receive the first data packet.
- the first version includes version 17, and the second version includes version 16.
- the associated information of the first data packet includes at least one of the following:
- the association information of the first data packet is used to determine whether the PDCP SDU type in the MAC sub-PDU in the first data packet is an ARP type.
- different values of the reserved information in the subheader of the MAC sub-PDU of the first data packet are used to indicate whether the PDCP SDU type in the MAC sub-PDU is an ARP type.
- the terminal device is configured with a third mapping relationship, and the third mapping relationship is used to indicate the LCID corresponding to the ARP type PDCP SDU and the LCID corresponding to the non-ARP type PDCP SDU.
- the third mapping relationship is configured by the network device, or is sent by the second terminal to the terminal device, or is predefined.
- the processing unit 410 is specifically used to:
- the terminal device When the first MAC sub-PDU in the first data packet includes an ARP-type PDCP SDU, and the terminal device supports receiving an ARP-type PDCP SDU, control the communication unit of the terminal device to receive the first A MAC SDU in a MAC sub-PDU; or
- the terminal device When the first MAC sub-PDU in the first data packet includes an ARP-type PDCP SDU, and the terminal device does not support receiving an ARP-type PDCP SDU, control the communication unit of the terminal device not to receive the MAC SDU in the first MAC sub-PDU.
- the terminal device further includes:
- a communication unit configured to report first capability information to the second terminal, where the first capability information is used to indicate whether the terminal device supports receiving ARP-type PDCP SDUs.
- the first capability information is sent through a physical sidelink feedback channel PSFCH.
- the terminal device further includes:
- the terminal device receives second capability information reported by the second terminal, where the second capability information is used to indicate whether the second terminal supports receiving ARP-type PDCP SDUs.
- the version information of the first data packet includes a sending specification of the first data packet.
- the above-mentioned communication unit may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system-on-chip.
- the aforementioned processing unit may be one or more processors.
- terminal device 400 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 400 are for realizing the method shown in FIG. 8 For the sake of brevity, the corresponding process of the first terminal in 300 will not be repeated here.
- Fig. 10 is a schematic block diagram of a terminal device according to another embodiment of the present application.
- the terminal equipment 500 of Fig. 10 comprises:
- a communication unit 510 configured to send a first data packet to a first terminal, where the associated information of the first data packet is used to determine version information of the first data packet or packet data in the first data packet Convergence protocol PDCP service data unit SDU type.
- the associated information of the first data packet includes at least one of the following:
- the SCI includes first indication information, and the first indication information is used to indicate version information of the first data packet.
- the first terminal is configured with a first mapping relationship, and the first mapping relationship is used to represent the mapping relationship between the resource pool and the version information of the data package.
- the information carried in the first data packet includes at least one of the following:
- the terminal device is configured with a second mapping relationship, and the second mapping relationship is used to characterize the mapping relationship between the destination address of the data packet and the version information of the data packet.
- the second mapping relationship is configured by the network device, or is predefined.
- the value of the version information in the MAC PDU subheader of the first data packet is used to indicate that the version information of the first data packet is the corresponding target version in at least two versions, where , the at least two versions include a first version and a second version.
- the value of the reserved information in the MAC PDU subheader of the first data packet is used to indicate that the version information of the first data packet is the corresponding target version in at least two versions, wherein, the at least two versions include a first version and a second version.
- the version information of the first data packet is the first version or the second version, wherein the first version supports sending or receiving PDCP SDUs of the Address Resolution Protocol ARP type, and the second version Sending or receiving PDCP SDUs of type ARP is not supported.
- the first version includes version 17, and the second version includes version 16.
- the version information of the first data packet includes a sending specification of the first data packet.
- the associated information of the first data packet includes at least one of the following:
- the association information of the first data packet is used to determine whether the PDCP SDU type in the MAC sub-PDU in the first data packet is an ARP type.
- the value of the reserved information in the subheader of the MAC sub-PDU of the first data packet is used to indicate whether the PDCP SDU type in the MAC sub-PDU is an ARP type.
- the terminal device is configured with a third mapping relationship, and the third mapping relationship is used to indicate the LCID corresponding to the ARP type PDCP SDU and the LCID corresponding to the non-ARP type PDCP SDU.
- the third mapping relationship is configured by the network device, or is predefined.
- the terminal device further includes:
- a communication unit configured to receive first capability information reported by the first terminal, where the first capability information is used to indicate whether the first terminal supports receiving ARP-type PDCP SDUs.
- the first capability information is sent through a physical sidelink feedback channel PSFCH.
- the terminal device further includes:
- a communication unit configured to report second capability information to the first terminal, where the second capability information is used to indicate whether the terminal device supports receiving ARP-type PDCP SDUs.
- the terminal device further includes:
- a communication unit configured to send capability information of a first target address to a network device, where the capability information of the first target address is used to indicate whether the first target address needs to support ARP-type PDCP SDUs, and the first target address is the target address of the terminal device.
- the capability information of the first target address is reported to the network device through sidelink user equipment information.
- the above-mentioned communication unit may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system-on-chip.
- the aforementioned processing unit may be one or more processors.
- terminal device 500 may correspond to the network device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 500 are to realize the method shown in FIG. 8
- the corresponding process of the second terminal in 300 will not be repeated here.
- Fig. 11 is a schematic block diagram of a network device according to an embodiment of the present application.
- the network device 800 of FIG. 11 includes:
- the communication unit 810 is configured to send the first information to the terminal device, where the first information is used to determine the version information of the sidelink data packet or the packet data convergence protocol PDCP service data unit SDU in the sidelink data packet type.
- the terminal device may be the aforementioned first terminal and/or the second terminal.
- the first information includes at least one of the following:
- the first mapping relationship is used to indicate the mapping relationship between the resource pool and the version information of the data package
- the second mapping relationship is used to indicate the mapping relationship between the target address of the side data packet and the version information of the side data packet
- the third mapping relationship is used to indicate the logical channel identifier LCID corresponding to the PDCP SDU of the address resolution protocol ARP type and the LCID corresponding to the PDCP SDU of the non-ARP type.
- the communication unit 810 is also used to:
- the capability information of the first target address is used to indicate whether the first target address needs to support an ARP-type PDCP SDU, and the first target address is the The target address of the terminal device mentioned above.
- the capability information of the first target address is reported to the network device through sidelink user equipment information.
- the version information of the sidebound data packet is the first version or the second version, wherein the first version supports sending or receiving PDCP SDUs of Address Resolution Protocol ARP type, and the second version Sending or receiving PDCP SDUs of type ARP is not supported.
- the first version includes version 17, and the second version includes version 16.
- the version information of the first data packet includes a sending specification of the first data packet.
- the network device 800 may correspond to the network device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 800 are for realizing the method shown in FIG. 8 For the sake of brevity, the corresponding processes of the network devices in 300 will not be repeated here.
- Fig. 12 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application.
- the communication device 600 shown in FIG. 12 includes a processor 610, and the processor 610 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
- the communication device 600 may further include a memory 620 .
- the processor 610 can invoke and run a computer program from the memory 620, so as to implement the method in the embodiment of the present application.
- the memory 620 may be an independent device independent of the processor 610 , or may be integrated in the processor 610 .
- the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, to send information or data to other devices, or receive other Information or data sent by the device.
- the transceiver 630 may include a transmitter and a receiver.
- the transceiver 630 may further include antennas, and the number of antennas may be one or more.
- the communication device 600 may specifically be the network device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not repeated here. .
- the communication device 600 may specifically be the first terminal or the second terminal in the embodiment of the present application, and the communication device 600 may implement the corresponding functions implemented by the first terminal or the second terminal in each method of the embodiment of the present application. For the sake of brevity, the process will not be repeated here.
- FIG. 13 is a schematic structural diagram of a chip according to an embodiment of the present application.
- the chip 700 shown in FIG. 13 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
- the chip 700 may further include a memory 720 .
- the processor 710 can invoke and run a computer program from the memory 720, so as to implement the method in the embodiment of the present application.
- the memory 720 may be an independent device independent of the processor 710 , or may be integrated in the processor 710 .
- the chip 700 may also include an input interface 730 .
- the processor 710 can control the input interface 730 to communicate with other devices or chips, specifically, can obtain information or data sent by other devices or chips.
- the chip 700 may also include an output interface 740 .
- the processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.
- the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in the methods of the embodiment of the present application.
- the chip can implement the corresponding processes implemented by the network device in the methods of the embodiment of the present application.
- the chip can be applied to the first terminal or the second terminal in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the first terminal or the second terminal in the methods of the embodiments of the present application, in order to It is concise and will not be repeated here.
- the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
- Fig. 14 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in FIG. 14 , the communication system 900 includes a first terminal 910 , a second terminal 920 and a network device 930 .
- the first terminal 910 can be used to realize the corresponding functions realized by the first terminal or the second terminal in the above method
- the second terminal 920 can be used to realize the corresponding functions realized by the second terminal in the above method
- the network device 930 can be used to realize the corresponding functions realized by the network device in the above method.
- the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
- each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
- the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components.
- DSP Digital Signal Processor
- ASIC Application Specific Integrated Circuit
- FPGA Field Programmable Gate Array
- a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
- the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented 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, register.
- 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 nonvolatile memory, or may include both volatile and nonvolatile memories.
- the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
- the volatile memory can be Random Access Memory (RAM), which acts as external cache memory.
- RAM Static Random Access Memory
- SRAM Static Random Access Memory
- DRAM Dynamic Random Access Memory
- Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
- 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
- Synchlink DRAM, SLDRAM Direct Memory Bus Random Access Memory
- Direct Rambus RAM Direct Rambus RAM
- the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is, the memory in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.
- the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
- the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application.
- the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application.
- the computer-readable storage medium can be applied to the first terminal or the second terminal in the embodiments of the present application, and the computer program enables the computer to execute the methods performed by the first terminal or the second terminal in the embodiments of the present application
- the corresponding process of implementation is not repeated here.
- the embodiment of the present application also provides a computer program product, including computer program instructions.
- the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
- the Let me repeat for the sake of brevity, the Let me repeat.
- the computer program product can be applied to the first terminal or the second terminal in the embodiments of the present application, and the computer program instructions cause the computer to execute the methods implemented by the first terminal or the second terminal in the embodiments of the present application
- the computer program instructions cause the computer to execute the methods implemented by the first terminal or the second terminal in the embodiments of the present application
- the corresponding process will not be repeated here.
- the embodiment of the present application also provides a computer program.
- the computer program can be applied to the network device in the embodiment of the present application.
- the computer program executes the corresponding process implemented by the network device in each method of the embodiment of the present application.
- the computer program executes the corresponding process implemented by the network device in each method of the embodiment of the present application.
- the computer program can be applied to the first terminal or the second terminal in the embodiments of the present application, and when the computer program is run on the computer, the computer executes the various methods in the embodiments of the present application performed by the first terminal or the second terminal.
- the corresponding process implemented by the second terminal will not be repeated here.
- the disclosed systems, devices and methods may be implemented in other ways.
- the device embodiments described above are only illustrative.
- the division of the units is only a logical function division. In actual implementation, there may be other division methods.
- multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
- the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units 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 may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
- the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
- the technical solution of the present application is essentially or the part that contributes to the prior art 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 disc and other media that can store program codes. .
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Abstract
一种侧行传输的方法、终端设备和网络设备,该方法包括:第一终端根据第二终端发送的第一数据包的关联信息,确定所述第一数据包的版本信息或所述第一数据包中的分组数据汇聚协议PDCP服务数据单元SDU的类型;根据所述第一数据包的版本信息或所述第一数据包对应的PDCP SDU类型,确定是否进行所述第一数据包的接收。因此,发送端通过发送的数据包的关联信息指示数据包的版本信息或数据包中的PDCP SDU类型,从而接收端根据数据包的版本信息或数据包对应的PDCP SDU类型,确定是否接收该数据包,有利于避免接收到不支持版本的数据包导致的资源浪费问题。
Description
本申请实施例涉及通信领域,具体涉及一种侧行传输的方法、终端设备和网络设备。
在相关技术中,考虑在版本17(Rel-17)侧行中继(sidelink relay)中引入地址解析协议(Address Resolution Protocol,ARP)类型分组数据汇聚协议(Packet Data Convergence Protocol,PDCP)SDU,而版本16(Rel-16)并不需要支持ARP类型的PDCP SDU,因此,在支持Rel-16/Rel-17的终端并存的场景中,如何实现侧行数据包的接收是一项急需解决的问题。
发明内容
本申请提供了一种侧行传输的方法、终端设备和网络设备,发送端通过发送的数据包的关联信息指示数据包的版本信息或数据包的PDCP SDU类型,从而接收端根据数据包的版本信息或数据包对应的PDCP SDU类型,确定是否接收该数据包,有利于避免接收到不支持版本的数据包导致的资源浪费问题。
第一方面,提供了一种侧行传输的方法,包括:第一终端根据第二终端发送的第一数据包的关联信息,确定所述第一数据包的版本信息或所述第一数据包的分组数据汇聚协议PDCP服务数据单元SDU类型;
根据所述第一数据包的版本信息或所述第一数据包的PDCP SDU类型,确定是否进行所述第一数据包的接收。
第二方面,提供了一种侧行传输的方法,包括:第二终端向第一终端发送第一数据包,其中,所述第一数据包的关联信息用于确定所述第一数据包的版本信息或所述第一数据包的分组数据汇聚协议PDCP服务数据单元SDU类型。
第三方面,提供了一种侧行传输的方法,包括:网络设备向终端设备发送第一信息,其中,所述第一信息用于确定侧行数据包的版本信息或所述侧行数据包的分组数据汇聚协议PDCP服务数据单元SDU类型。
第四方面,提供了一种终端设备,用于执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
具体地,该终端设备包括用于执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法的功能模块。
第五方面,提供了一种网络设备,用于执行上述第三方面或其各实现方式中的方法。
具体地,该网络设备包括用于执行上述第三方面或其各实现方式中的方法的功能模块。
第六方面,提供了一种终端设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第一发明至第二方面中的任一方面或其各实现方式中的方法。
第七方面,提供了一种网络设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第三方面或其各实现方式中的方法。
第八方面,提供了一种计算机可读存储介质,用于存储计算机程序,该计算机程序使得计算机执行上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
第九方面,提供了一种计算机程序产品,包括计算机程序指令,所述计算机程序指令使得计算机执行上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
第十方面,提供了一种计算机程序,当其在计算机上运行时,使得计算机执行上述 第一方面至第三方面中的任一方面或其各实现方式中的方法。
第十一方面,提供了一种芯片,用于实现上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
具体地,该芯片包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有该装置的设备执行如上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
通过上述技术方案,在第二终端向第一终端发送第一数据包的情况下,所述第一终端可以根据所述第一数据包的关联信息确定是否接收该第一数据包,例如,根据所述第一数据包的关联信息确定所述第一数据包的版本信息或第一数据包的PDCP SDU类型,进一步根据所述第一数据包的版本信息或第一数据包的PDCP SDU类型,确定是否接收该第一数据包,有利于避免接收到不支持版本的数据包导致的资源浪费问题。
图1是本申请提供的一种通信系统架构的示意性图。
图2是本申请提供的另一种通信系统架构的示意性图。
图3是本申请提供的一种单播侧行通信的示意性图。
图4是本申请提供的一种组播侧行通信的示意性图。
图5是本申请提供的一种广播侧行通信的示意性图。
图6是根据本申请一个实施例的MAC PDU的格式示意图。
图7是根据本申请一个实施例的MAC PDU子头的格式示意图。
图8是根据本申请实施例的侧行传输的方法的示意性交互图。
图9是根据本申请实施例提供的一种终端设备的示意性框图。
图10是根据本申请实施例提供的另一种终端设备的示意性框图。
图11是根据本申请实施例提供的网络设备的示意性框图。
图12是根据本申请实施例提供的一种通信设备的示意性框图。
图13是根据本申请实施例提供的一种芯片的示意性框图。
图14是根据本申请实施例提供的一种通信系统的示意性框图。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。针对本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、先进的长期演进(Advanced long term evolution,LTE-A)系统、新空口(New Radio,NR)系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based access to unlicensed spectrum,LTE-U)系统、非授权频谱上的NR(NR-based access to unlicensed spectrum,NR-U)系统、非地面通信网络(Non-Terrestrial Networks,NTN)系统、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、无线局域网(Wireless Local Area Networks,WLAN)、无线保真(Wireless Fidelity,WiFi)、第五代通信(5th-Generation,5G)系统或其他通信系统等。
通常来说,传统的通信系统支持的连接数有限,也易于实现,然而,随着通信技术的发展,移动通信系统将不仅支持传统的通信,还将支持例如,设备到设备(Device to Device,D2D)通信,机器到机器(Machine to Machine,M2M)通信,机器类型通信(Machine Type Communication,MTC),车辆间(Vehicle to Vehicle,V2V)通信,或车联网(Vehicle to everything,V2X)通信等,本申请实施例也可以应用于这些通信系统。
可选地,本申请实施例中的通信系统可以应用于载波聚合(Carrier Aggregation,CA)场景,也可以应用于双连接(Dual Connectivity,DC)场景,还可以应用于独立(Standalone,SA)布网场景。
可选地,本申请实施例中的通信系统可以应用于非授权频谱,其中,非授权频谱也可以认为是共享频谱;或者,本申请实施例中的通信系统也可以应用于授权频谱,其中,授权频谱也可以认为是非共享频谱。
本申请实施例结合网络设备和终端设备描述了各个实施例,其中,终端设备也可以称为用户设备(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等。
终端设备可以是WLAN中的站点(STATION,ST),可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、下一代通信系统例如NR网络中的终端设备,或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)网络中的终端设备等。
在本申请实施例中,终端设备可以部署在陆地上,包括室内或室外、手持、穿戴或车载;也可以部署在水面上(如轮船等);还可以部署在空中(例如飞机、气球和卫星上等)。
在本申请实施例中,终端设备可以是手机(Mobile Phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality,VR)终端设备、增强现实(Augmented Reality,AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。
作为示例而非限定,在本申请实施例中,该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能首饰等。
在本申请实施例中,网络设备可以是用于与移动设备通信的设备,网络设备可以是WLAN中的接入点(Access Point,AP),GSM或CDMA中的基站(Base Transceiver Station,BTS),也可以是WCDMA中的基站(NodeB,NB),还可以是LTE中的演进型基站(Evolutional Node B,eNB或eNodeB),或者中继站或接入点,或者车载设备、可穿戴设备以及NR网络中的网络设备或者基站(gNB)或者未来演进的PLMN网络中的网络设备或者NTN网络中的网络设备等。
作为示例而非限定,在本申请实施例中,网络设备可以具有移动特性,例如网络设备可以为移动的设备。可选地,网络设备可以为卫星、气球站。例如,卫星可以为低地球轨道(low earth orbit,LEO)卫星、中地球轨道(medium earth orbit,MEO)卫星、 地球同步轨道(geostationary earth orbit,GEO)卫星、高椭圆轨道(High Elliptical Orbit,HEO)卫星等。可选地,网络设备还可以为设置在陆地、水域等位置的基站。
在本申请实施例中,网络设备可以为小区提供服务,终端设备通过该小区使用的传输资源(例如,频域资源,或者说,频谱资源)与网络设备进行通信,该小区可以是网络设备(例如基站)对应的小区,小区可以属于宏基站,也可以属于小小区(Small cell)对应的基站,这里的小小区可以包括:城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等,这些小小区具有覆盖范围小、发射功率低的特点,适用于提供高速率的数据传输服务。
应理解,本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释,而非旨在限定本申请。本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象,而不是用于描述特定顺序。此外,术语“包括”和“具有”以及它们任何变形,意图在于覆盖不排他的包含。
应理解,在本申请的实施例中提到的“指示”可以是直接指示,也可以是间接指示,还可以是表示具有关联关系。举例说明,A指示B,可以表示A直接指示B,例如B可以通过A获取;也可以表示A间接指示B,例如A指示C,B可以通过C获取;还可以表示A和B之间具有关联关系。
在本申请实施例的描述中,术语“对应”可表示两者之间具有直接对应或间接对应的关系,也可以表示两者之间具有关联关系,也可以是指示与被指示、配置与被配置等关系。
本申请实施例中,“预定义”或“预配置”可以通过在设备(例如,包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现,本申请对于其具体的实现方式不做限定。比如预定义可以是指协议中定义的。
本申请实施例中,所述“协议”可以指通信领域的标准协议,例如可以包括LTE协议、NR协议以及应用于未来的通信系统中的相关协议,本申请对此不做限定。
图1是本申请实施例适用的一种通信系统的示意图。车载终端(车载终端121和车载终端122)的传输资源是由基站110分配的,车载终端根据基站110分配的资源在侧行链路上进行数据的发送。具体地,基站110可以为终端分配单次传输的资源,也可以为终端分配半静态传输的资源。
图2是本申请实施例适用的另一种通信系统的示意图。车载终端(车载终端131和车载终端132)在侧行链路的资源上自主选取传输资源进行数据传输。可选地,车载终端可以随机选取传输资源,或者通过侦听的方式选取传输资源。
在LTE-V2X中,支持广播传输方式,在NR-V2X中,引入了单播和组播的传输方式。对于单播传输,其接收端终端只有一个终端,如图3所示,UE1、UE2之间进行单播传输;对于组播传输,其接收端是一个通信组内的所有终端,或者是在一定传输距离内的所有终端,如图4所示,UE1、UE2、UE3和UE4构成一个通信组,其中UE1发送数据,该组内的其他终端设备都是接收端终端;对于广播传输方式,其接收端是发送端终端周围的任意一个终端,如图5所示,UE1是发送端终端,其周围的其他终端,UE2-UE6都是接收端终端。
在侧行传输中,发送端终端可以根据待传输数据生成媒体接入控制(Media Access Control,MAC)协议数据单元(Protocol Data Unit,PDU),向接收端终端发送给MAC PDU。
在一些实施例中,一个MAC PDU包括一个MAC PDU子头(subheader),0或至少一个MAC子PDU(subPDU),以及可能的填充比特。图6是一种MAC PDU格式的 示例。
如图6所示,一个MAC subPDU可以包括一个MAC subPDU的subheader,一个MAC subPDU的subheader可以对应一个MAC服务数据单元(service data unit,SDU)或者一个MAC控制元素(MAC Control Element,MAC CE)或者填充比特。
如图6所示,一个MAC subPDU的subheader可以包括如下字段中的至少一个:
R:预留比特;
L:长度字段,用于指示MAC SDU或MAC CE的长度,以字节为单位;
F:用于指示L字段的长度。
LCID:逻辑信道ID字段。
图7是一种MAC PDU的subheader的格式示意图。其中,该MAC PDU的subheader中的各个字段的含义如下:
V:版本字段,占4比特,被设置为全0;
R:预留(reserved)比特,设置为0;
SRC:源地址字段,占16比特,携带16位最有效的源层二(layer2)标识(Identify,ID);
DST:目标地址字段,占8比特,携带8位最有效的目标层二(layer2)ID。
在一些场景中,考虑在版本17(Rel-17)侧行中继中引入地址解析协议(Address Resolution Protocol,ARP)类型分组数据汇聚协议(Packet Data Convergence Protocol,PDCP)SDU,而版本16(Rel-16)并不需要支持ARP类型的PDCP SDU,因此,在支持Rel-16/Rel-17的终端并存的场景中,如果一个Rel-17的终端向Rel-16的终端发送了一个ARP类型的数据包,则该Rel-16的终端需要对数据包解析到PDCP层才能发现不支持接收该数据包,增加了终端的资源消耗,因此,如何实现侧行数据包的接收以降低终端的资源消耗是一项急需解决的问题。
图3是根据本申请实施例的侧行传输的方法的示意性交互图,如图3所示,该方法300可以包括如下至少部分内容:
S310,第二终端向第一终端发送第一数据包;
S320,第一终端根据第二终端发送的第一数据包的关联信息,确定所述第一数据包的版本信息或所述第一数据包的分组数据汇聚协议PDCP服务数据单元SDU类型;
S330,根据所述第一数据包的版本信息或所述第一数据包的PDCP SDU类型,确定是否进行所述第一数据包的接收。
因此,在本申请实施例中,在第二终端向第一终端发送第一数据包的情况下,所述第一终端可以根据所述第一数据包的关联信息确定是否接收该第一数据包,例如,根据所述第一数据包的关联信息确定所述第一数据包的版本信息或第一数据包的PDCP SDU类型,进一步根据所述第一数据包的版本信息或第一数据包的PDCP SDU类型,确定是否接收该第一数据包,有利于避免对不支持的版本的数据进行接收和解析导致的资源浪费问题。
在本申请实施例中,所述第一数据包的版本信息为至少两个版本中的一个版本。所述至少两个版本包括第一版本和第二版本。
可选地,在本申请一些实施例中,所述第一版本可以包括Rel-17,所述第二版本包括Rel-16。
在一些实施例中,所述第一版本支持ARP类型的数据包,所述第二版本不支持ARP类型的数据包。
应理解,在本申请一些实施例中,ARP类型的数据包可以替换为ARP类型的PDCP SDU,ARP类型的MAC PDU。
在本申请实施例中,所述第一数据包包括MAC PDU。
由协议层对数据的封装过程可知,MAC PDU中的MAC SDU来自PDCP层的PDCP SDU,因此,在本申请实施例中,PDCP SDU类型也可以认为是MAC SDU类型。
可选地,所述PDCP SDU类型可以包括ARP类型的PDCP SDU和非ARP类型的PDCP SDU。
可选地,所述MAC SDU类型可以包括ARP类型的MAC SDU和非ARP类型的MAC SDU。
在本申请一些实施例中,所述第一数据包的PDCP SDU类型可以指所述第一数据包中的数据的PDCP SDU类型,或者,所述第一数据包中的MAC SDU的PDCP SDU类型。
例如,所述第一数据包的PDCP SDU类型可以指:所述第一数据包为ARP类型的PDCP SDU,或者,所述第一数据包为其他类型的PDCP SDU。
又例如,所述第一数据包的PDCP SDU类型可以指:所述第一数据包包括ARP类型的PDCP SDU,或者所述第一数据包包括其他类型的PDCP SDU。
在本申请一些实施例中,所述第一数据包的关联信息可以用于指示所述第一数据包的版本信息,或者,所述第一数据包的接收端终端是否需要支持ARP类型的数据包,或者,所述第一数据包是否包括ARP类型的PDCP SDU。
所述第一数据包的接收端终端是否需要支持ARP类型的数据包可以指:
所述第一数据包的接收端终端是否需要支持ARP类型的PDCP SDU,或者,所述第一数据包的接收端终端是否需要具备ARP类型的数据包的接收能力,或者,所述第一数据包的接收端是否需要支持第一版本的数据包。
在一些实施例中,发送或接收所述ARP类型的数据包是所述第一版本的终端必须支持的能力。此情况下,所述第一版本的数据包中必定包括ARP类型的PDCP SDU。这种情况下,通过指示所述第一数据包的版本信息相当于指示了所述第一数据包的PDCP SDU类型。
在另一些实施例中,发送或接收所述ARP类型的数据包是所述第一版本的终端的可选的能力。此情况下,所述第一版本的数据包中可能包括ARP类型的PDCP SDU,也可能不包括ARP类型的PDCP SDU。
可选地,在一些实施例中,所述第一数据包的版本信息包括所述第一数据包的发送规范(Tx profile)。也就是说,可以通过所述第一数据包的关联信息指示所述第一数据包Tx profile。
在一些场景中,例如组播和广播业务中,第一终端和第二终端未建立PC5 RRC连接,因此,Tx profile信息不能直接由发送端发送给接收端,此情况下,可以通过第一数据包的关联信息指示版本信息例如Tx profile。
应理解,本申请实施例中,所述第一数据包的关联信息可以指任一与所述第一数据包关联的信息,例如,所述第一数据包的资源信息,调度信息,所述第一数据包中携带的信息等。
在本申请一些实施例中,所述第一数据包的关联信息包括用于调度所述第一数据包的侧行控制信息(Sidelink Control Information,SCI)。例如,在调度所述第一数据包时,可以同时指示被调度的第一数据包的版本信息。
在一些实施例中,所述SCI包括第一指示信息,所述第一指示信息用于指示所述第一数据包的版本信息。
可选地,所述第一指示信息承载为SCI中的预留域中,或者预留比特中,或者也可以利用SCI中的已有域的无效比特指示所述第一数据包的版本信息,本申请并不限于此。
作为一个示例,所述第一指示信息包括至少一个比特,所述至少一个比特的取值用于指示所述第一数据包的版本信息在所述至少两个版本中对应的目标版本。例如,取值为0表示,目标版本为第一版本,取值为1表示所述目标版本为第二版本。
在本申请另一些实施例中,所述第一数据包的关联信息包括用于传输述第一数据包的资源池。
例如,终端设备上配置有第一映射关系,所述第一映射关系为用于数据包传输的资源池和该数据包的版本信息的映射关系,因此,数据包的接收端可以根据接收该数据包的资源池确定该数据包对应的版本信息。
可选地,在一些实施例中,所述第一映射关系可以是网络设备配置的,或者预定义的,或者是由所述第二终端发送给所述第一终端的。
应理解,本申请并不限定所述第二终端向所述第一终端发送所述第一映射关系的具体方式,例如,在单播通信中,所述第二终端和所述第一终端建立PC5 RRC连接后,所述第二终端可以向所述第一终端发送所述第一映射关系。
在一些实施例中,网络设备可以为第一版本和第二版本的侧行链路业务分别配置对应的资源池,例如包括发送资源池和接收资源池,接收端通过接收数据包所使用的资源池,判断该数据包对应的版本信息。
作为一个示例,网络设备配置第一版本对应第一资源池,第二版本对应第二资源池,若第一终端在第一资源池接收该第一数据包,可以确定该第一数据包的版本信息为第一版本。
在本申请又一些实施例中,所述第一终端可以根据所述第一数据包中携带的信息确定所述第一数据包的版本信息。
在一些实施例中,所述第一数据包中携带的信息包括所述第一数据包的MAC PDU子头中的信息。通过第一数据包的MAC PDU的subheader中的信息指示所述第一数据包的版本信息,或者,所述第一数据包的接收端终端是否需要支持ARP类型的PDCP SDU,从而第一数据包的接收端终端只需将该第一数据包解析到MAC层即可获知自身是否支持所述第一数据包的版本,进而确定是否对后续的数据进行接收。
在一些实施例中,所述第一数据包中携带的信息包括以下中的至少一项:
所述第一数据包中的MAC PDU subheader头中的目标地址信息、所述第一数据包中的MAC PDU subheader中的版本信息、所述第一数据包中的MAC PDU subheader中的预留信息。
在一些实施例中,所述第一终端上配置有第二映射关系,所述第二映射关系用于表征数据包的目标地址和数据包的版本信息的映射关系。
因此,所述第一终端可以获取所述第一数据包的目标地址信息,进一步根据所述第一数据包的目标地址信息和该第二映射关系确定所述第一数据包的版本信息。
可选地,所述第一终端可以从所述第一数据包的MAC PDU subheader中的DST字段获取第一目标地址信息,从调度所述第一数据包的SCI中的目标地址信息获取第二目标地址信息,根据所述第一目标地址信息和所述第二目标地址信息确定所述第一数据包的目标地址信息。
在一些实施例中,所述第二映射关系是网络设备配置的,或者,是由所述第二终端发送给所述第一终端的,或者,是预定义的。
应理解,本申请并不限定所述第二终端向所述第一终端发送所述第二映射关系的具体方式。例如,在单播通信中,所述第二终端和所述第一终端建立PC5 RRC连接后,所述第二终端可以向所述第一终端发送所述第二映射关系。
在一些实施例中,通过所述第一数据包的MAC PDU subheader中的V字段的取值指示所述第一数据包的版本信息在至少两个版本中对应的目标版本。
作为一个示例,所述V字段取值为全“0”,表示所述第一数据包为第二版本的数据包,例如,Rel-16类型的MAC PDU,所述V字段中存在至少1比特为“1”,则表示所述第一数据包为第一版本的数据包,例如,Rel-17类型的MAC PDU。
在一些实施例中,通过所述第一数据包的MAC PDU subheader中的至少一个R字段的取值指示所述第一数据包的版本信息在至少两个版本中对应的目标版本。
作为一个示例,所述至少一个R字段取值为全“0”,表示所述第一数据包为第二 版本的数据包,例如,Rel-16类型的MAC PDU,至少一个R字段中存在一个R字段取值为“1”,则表示所述第一数据包为第一版本的数据包,例如,Rel-17类型的MAC PDU。
在本申请一些实施例中,所述S330可以包括:
在所述第一数据包的版本信息为第一版本,并且所述第一终端不支持接收ARP类型的PDCP SDU的情况下,所述第一终端丢弃所述第一数据包;或者
在所述第一数据包的版本信息为第一版本,并且所述第一终端支持接收ARP类型的PDCP SDU的情况下,所述第一终端接收所述第一数据包。
也就是说,在所述第一数据包的版本为所述第一终端不支持的版本时,所述第一终端对所述第一数据包做整体丢弃处理(即不接收MAC PDU subheader之后的数据),或者,在所述第一数据包的版本为所述第一终端支持的版本时,所述第一终端对所述第一数据包做整体接收处理(即接收MAC PDU subheader之后的数据)。
在一些实施例中,在所述第一数据包为第一版本的数据包,所述第一终端为第一版本的终端,并且,所述第一版本的终端支持发送或接收所述第一版本的数据包是必须能力(即所述第一终端具有接收所述ARP类型的数据包的能力)时,所述第一终端根据所述第一数据包的版本信息确定所述第一数据包是否为ARP类型的数据包,进一步对该第一数据包进行整体丢弃处理或整体接收处理。
在一些场景中,一个MAC PDU可以包括至少一个MAC subPDU,每个MAC subPDU可以包括一个MAC SDU,在本申请一些实施例中,还可以通过第一数据包中的MAC subPDU中的subheader中的信息指示所述MAC subPDU中的MAC SDU的PDCP SDU类型,例如MAC SDU是否包含ARP类型的PDCP SDU数据,或者MAC SDU是否为ARP类型的PDCP SDU数据等。进一步地,第一终端可以根据第一数据包中的每个MAC subPDU中的subheader中的信息确定每个MAC subPDU中的MAC SDU的PDCP SDU类型(或者说,MAC SDU是否包括ARP类型的PDCP SDU数据),从而确定是否接收每个MAC subPDU中的MAC SDU,能够实现对第一数据包的更细粒度的接收控制。
在一些实施例中,可以通过MAC subPDU中的subheader中的预留信息指示所述MAC subPDU中的MAC SDU的PDCP SDU类型,例如是否为(或者,包含)ARP类型的PDCP SDU数据。
作为一个示例,所述第一数据包包括第一MAC subPDU和第二MAC subPDU,所述第一MAC subPDU包括第一subheader,所述第二MAC subPDU包括第二subheader,可以通过所述第一subheader中的预留信息指示所述第一MAC subPDU中的MAC SDU的PDCP SDU类型,通过所述第二subheader中的预留信息指示所述第二MAC subPDU中的MAC SDU的PDCP SDU类型。
例如,若根据第一subheader中的预留信息确定所述第一MAC subPDU中的MAC SDU包括第一版本的PDCP SDU数据,根据第二subheader中的预留信息确定所述第二MAC subPDU中的MAC SDU包括第二版本的PDCP SDU,而第一终端支持第二版本的数据包,不支持第一版本的数据包,则第一终端不接收所述第一MAC subPDU中的MAC SDU(对所述第一MAC subPDU做丢弃处理),接收所述第二MAC subPDU中的MAC SDU。
在一些实施例中,可以通过MAC subPDU中的subheader中的逻辑信道标识(Logic Channel Identify,LCID)指示所述MAC subPDU中的MAC SDU的PDCP SDU类型,例如是否为ARP类型的PDCP SDU数据。
在一些实施例中,所述第一终端上配置有第三映射关系,所述第三映射关系用于指示ARP类型的PDCP SDU对应的LCID以及非ARP类型的PDCP SDU对应的LCID。
即可以为不同类型的PDCP SDU配置对应的LCID,从而第二终端可以传输不同版本的PDCP SDU时,可以在对应的MAC subPDU中使用不同的LCID指示。
在一些实施例中,所述第三映射关系是网络设备配置的,或者,是由所述第二终端 发送给所述第一终端的,或者,是预定义的。
应理解,本申请并不限定,所述第二终端向所述第一终端发送所述第三映射关系的具体方式,例如,在单播通信中,所述第二终端和所述第一终端建立PC5 RRC连接后,所述第二终端可以向所述第一终端发送所述第三映射关系。
作为一个示例,所述第一数据包包括第一MAC subPDU和第二MAC subPDU,所述第一MAC subPDU包括第一subheader,所述第二MAC subPDU包括第二subheader,可以通过所述第一subheader中的LCID指示所述第一MAC subPDU中的MAC SDU的PDCP SDU类型,通过所述第二subheader中的LCID指示所述第二MAC subPDU中的MAC SDU的PDCP SDU类型。
例如,若根据第一subheader中的LCID确定所述第一MAC subPDU中的MAC SDU包括第一版本的PDCP SDU数据,根据第二subheader中的LCID确定所述第二MAC subPDU中的MAC SDU包括第二版本的PDCP SDU数据,而第一终端支持第二版本的数据包,不支持第一版本的数据包,则第一终端不接收所述第一MAC subPDU中的MAC SDU(即对所述第一MAC subPDU做丢弃处理),接收所述第二MAC subPDU中的MAC SDU。
在本申请一些实施例中,所述方法300还包括:
所述第一终端向所述第二终端上报第一能力信息,所述第一能力信息用于指示所述第一终端是否支持接收ARP类型的PDCP SDU。
即数据包的接收端可以向数据包的发送端上报自身的是否支持接收第一版本的数据包,或者说,是否具有接收所述第一版本的数据包的能力。
在本申请一些实施例中,所述方法200还包括:
所述第一终端接收所述第二终端上报的第二能力信息,所述第二能力信息用于指示所述第二终端是否支持接收ARP类型的PDCP SDU。
即数据包的发送端可以向数据包的接收端上报自身的是否支持接收第一版本的数据包,或者说,是否具有接收所述第一版本的数据包的能力。
综上,数据包的发送端和接收端可以交互二者对于第一版本的数据包的接收能力,从而,在后续的侧行通信中,数据包的发送端可以根据接收端的接收能力发送合适版本的数据包,有利于避免不必要的数据包解析带来的资源浪费。
应理解,本申请实施例并不限定所述第一终端和所述第二终端交互二者对应第一版本的数据包的接收能力的具体方式,例如,在单播通信,组播通信或广播通信交互等。
在一些实施例中,第二终端可以在单播通信中向所述第一终端发送所述第二能力信息。对应地,所述第一终端也可以在单播通信中向所述第二终端发送所述第一能力信息
在一些实施例中,第二终端可以在组播通信中,向所述多个终端发送所述第二能力信息,其中,所述多个终端包括所述第一终端。对应地,所述第一终端可以通过物理侧行反馈信道(Physical Sidelink Feedback Channel,PSFCH)向所述第二终端发送所述第一能力信息。
在一些实施例中,第二终端可以在广播通信中发送所述第二能力信息。类似地,所述第一终端也可以通过广播通信发送所述第一能力信息。
在本申请一些实施例中,所述方法300还包括:
所述第二终端向网络设备发送第一目标地址的能力信息,所述第一目标地址的能力信息用于指示所述第一目标地址是否支持ARP类型的PDCP SDU,或者,所述第一目标地址是否支持第一版本的数据包。所述第一目标地址为所述第二终端的目标地址。
例如,所述第一目标地址的能力信息通过侧行链路用户设备信息(SidelinkUEInformation)上报给网络设备。进一步地,所述网络设备可以向所述第一终端发送所述第一目标地址的能力信息。
例如,在后续的侧行传输中,所述第一终端可以获取第一数据包中的目标地址,进 一步结合所述第一目标地址的能力信息,确定所述第一数据包的目标地址是否支持所述ARP类型的PDCP SDU,进一步判断是否接收该第一数据包。
综上所述,在本申请实施例中,在第二终端向第一终端发送第一数据包的情况下,所述第一终端可以根据所述第一数据包的关联信息确定是否接收该第一数据包,例如,根据所述第一数据包的关联信息确定所述第一数据包的版本信息,进一步根据所述第一数据包的版本信息,确定是否接收该第一数据包,或者根据所述第一数据包中携带的信息确定所述第一数据包中的每个MAC subPDU中的MAC SDU的PDCP SDU类型,进一步根据第一数据包中的MAC subPDU中的MAC SDU的PDCP SDU类型确定是否对第一数据包中的每个MAC subPDU中的MAC SDU进行接收,有利于避免将该第一数据包解析到PDCP层才发现不支持接收该第一数据包导致的资源浪费问题。
上文结合图8,详细描述了本申请的方法实施例,下文结合图9至图13,详细描述本申请的装置实施例,应理解,装置实施例与方法实施例相互对应,类似的描述可以参照方法实施例。
图9示出了根据本申请实施例的终端设备400的示意性框图。如图9所示,该终端设备400包括:
处理单元410,用于根据第二终端发送的第一数据包的关联信息,确定所述第一数据包的版本信息或所述第一数据包中的分组数据汇聚协议PDCP服务数据单元SDU的类型;以及根据所述第一数据包的版本信息或所述第一数据包的PDCP SDU类型,确定是否进行所述第一数据包的接收。
本申请一些实施例中,所述第一数据包的关联信息包括以下中的至少一种:
用于调度所述第一数据包的侧行控制信息SCI,用于传输所述第一数据包的资源池,所述第一数据包中携带的信息。
本申请一些实施例中,所述SCI包括第一指示信息,所述第一指示信息用于指示所述第一数据包的版本信息。
本申请一些实施例中,所述终端设备上配置有第一映射关系,所述第一映射关系用于表征资源池和数据包的版本信息的映射关系。
本申请一些实施例中,所述第一映射关系是网络设备配置的,或者,是由所述第二终端发送给所述终端设备的,或者,是预定义的。
本申请一些实施例中,所述第一数据包中携带的信息包括以下中的至少一项:
所述第一数据包中的媒体接入控制MAC协议数据单元PDU子头中的目标地址信息、所述第一数据包中的MAC PDU子头中的版本信息、所述第一数据包中的MAC PDU子头中的预留信息。
本申请一些实施例中,所述终端设备上配置有第二映射关系,所述第二映射关系用于表征数据包的目标地址和数据包的版本信息的映射关系。
本申请一些实施例中,所述第二映射关系是网络设备配置的,或者,是由所述第二终端发送给所述终端设备的,或者,是预定义的。
本申请一些实施例中,所述第一数据包的MAC PDU子头中的版本信息的取值用于指示所述第一数据包的版本信息在至少两个版本中对应的目标版本,其中,所述至少两个版本包括第一版本和第二版本。
本申请一些实施例中,所述第一数据包的MAC PDU子头中的预留信息的取值用于指示所述第一数据包的版本信息在至少两个版本中对应的目标版本,其中,所述至少两个版本包括第一版本和第二版本。
本申请一些实施例中,所述第一数据包的版本信息为第一版本或第二版本,其中,所述第一版本支持发送或接收地址解析协议ARP类型的PDCP SDU,所述第二版本不支持发送或接收ARP类型的PDCP SDU。
本申请一些实施例中,所述处理单元410具体用于:
在所述第一数据包的版本信息为第一版本,并且所述终端设备不支持接收ARP类型的PDCP SDU的情况下,控制所述终端设备的通信单元不接收所述第一数据包;或者
在所述第一数据包的版本信息为第一版本,并且所述终端设备支持接收ARP类型的PDCP SDU的情况下,控制所述终端设备的通信单元接收所述第一数据包。
本申请一些实施例中,所述第一版本包括版本17,所述第二版本包括版本16。
本申请一些实施例中,所述第一数据包的关联信息包括以下中的至少一种:
所述第一数据包中的MAC子PDU的子头中的预留信息,所述第一数据包中的MAC子PDU的子头中的逻辑信道标识LCID。
本申请一些实施例中,所述第一数据包的关联信息用于确定所述第一数据包中的所述MAC子PDU中的PDCP SDU类型是否为ARP类型。
本申请一些实施例中,所述第一数据包的MAC子PDU的子头中的预留信息的不同取值用于指示所述MAC子PDU中的PDCP SDU类型是否为ARP类型。
本申请一些实施例中,所述终端设备上配置有第三映射关系,所述第三映射关系用于指示ARP类型的PDCP SDU对应的LCID以及非ARP类型的PDCP SDU对应的LCID。
本申请一些实施例中,所述第三映射关系是网络设备配置的,或者,是由所述第二终端发送给所述终端设备的,或者,是预定义的。
本申请一些实施例中,所述处理单元410具体用于:
在所述第一数据包中的第一MAC子PDU包括ARP类型的PDCP SDU,并且所述终端设备支持接收ARP类型的PDCP SDU的情况下,控制所述终端设备的通信单元接收所述第一MAC子PDU中的MAC SDU;或者
在所述第一数据包中的第一MAC子PDU包括ARP类型的PDCP SDU,并且所述终端设备不支持接收ARP类型的PDCP SDU的情况下,控制所述终端设备的通信单元不接收所述第一MAC子PDU中的MAC SDU。
本申请一些实施例中,所述终端设备还包括:
通信单元,用于向所述第二终端上报第一能力信息,所述第一能力信息用于指示所述终端设备是否支持接收ARP类型的PDCP SDU。
本申请一些实施例中,所述第一能力信息是通过物理侧行反馈信道PSFCH发送的。
本申请一些实施例中,所述终端设备还包括:
所述终端设备接收所述第二终端上报的第二能力信息,所述第二能力信息用于指示所述第二终端是否支持接收ARP类型的PDCP SDU。
本申请一些实施例中,所述第一数据包的版本信息包括所述第一数据包的发送规范。
可选地,在一些实施例中,上述通信单元可以是通信接口或收发器,或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解,根据本申请实施例的终端设备400可对应于本申请方法实施例中的终端设备,并且终端设备400中的各个单元的上述和其它操作和/或功能分别为了实现图8所示方法300中第一终端的相应流程,为了简洁,在此不再赘述。
图10是根据本申请另一实施例的终端设备的示意性框图。图10的终端设备500包括:
通信单元510,用于向第一终端发送第一数据包,其中,所述第一数据包的关联信息用于确定所述第一数据包的版本信息或所述第一数据包中的分组数据汇聚协议PDCP服务数据单元SDU的类型。
本申请一些实施例中,所述第一数据包的关联信息包括以下中的至少一种:
用于调度所述第一数据包的侧行控制信息SCI,用于传输所述第一数据包的资源池,所述第一数据包中携带的信息。
本申请一些实施例中,所述SCI包括第一指示信息,所述第一指示信息用于指示所述第一数据包的版本信息。
本申请一些实施例中,所述第一终端上配置有第一映射关系,所述第一映射关系用于表征资源池和数据包的版本信息的映射关系。
本申请一些实施例中,所述第一数据包中携带的信息包括以下中的至少一项:
所述第一数据包中的媒体接入控制MAC协议数据单元PDU子头中的目标地址信息、所述第一数据包中的MAC PDU子头中的版本信息、所述第一数据包中的MAC PDU子头中的预留信息。
本申请一些实施例中,所述终端设备上配置有第二映射关系,所述第二映射关系用于表征数据包的目标地址和数据包的版本信息的映射关系。
本申请一些实施例中,所述第二映射关系是网络设备配置的,或者,是预定义的。
本申请一些实施例中,所述第一数据包的MAC PDU子头中的版本信息的取值用于指示所述第一数据包的版本信息为在至少两个版本中对应的目标版本,其中,所述至少两个版本包括第一版本和第二版本。
本申请一些实施例中,所述第一数据包的MAC PDU子头中的预留信息的取值用于指示所述第一数据包的版本信息为在至少两个版本中对应的目标版本,其中,所述至少两个版本包括第一版本和第二版本。
本申请一些实施例中,所述第一数据包的版本信息为第一版本或第二版本,其中,所述第一版本支持发送或接收地址解析协议ARP类型的PDCP SDU,所述第二版本不支持发送或接收ARP类型的PDCP SDU。
本申请一些实施例中,所述第一版本包括版本17,所述第二版本包括版本16。
本申请一些实施例中,所述第一数据包的版本信息包括所述第一数据包的发送规范。
本申请一些实施例中,所述第一数据包的关联信息包括以下中的至少一种:
所述第一数据包中的MAC子PDU的子头中的预留信息,所述第一数据包中的MAC子PDU的子头中的逻辑信道标识LCID。
本申请一些实施例中,所述第一数据包的关联信息用于确定所述第一数据包中的所述MAC子PDU中的PDCP SDU类型是否为ARP类型。
本申请一些实施例中,所述第一数据包的MAC子PDU的子头中的预留信息的取值用于指示所述MAC子PDU中的PDCP SDU类型是否为ARP类型。
本申请一些实施例中,所述终端设备上配置有第三映射关系,所述第三映射关系用于指示ARP类型的PDCP SDU对应的LCID以及非ARP类型的PDCP SDU对应的LCID。
本申请一些实施例中,所述第三映射关系是网络设备配置的,或者,是预定义的。
本申请一些实施例中,所述终端设备还包括:
通信单元,用于接收所述第一终端上报的第一能力信息,所述第一能力信息用于指示所述第一终端是否支持接收ARP类型的PDCP SDU。
本申请一些实施例中,所述第一能力信息是通过物理侧行反馈信道PSFCH发送的。
本申请一些实施例中,所述终端设备还包括:
通信单元,用于向所述第一终端上报的第二能力信息,所述第二能力信息用于指示所述终端设备是否支持接收ARP类型的PDCP SDU。
本申请一些实施例中,所述终端设备还包括:
通信单元,用于向网络设备发送第一目标地址的能力信息,所述第一目标地址的能力信息用于指示所述第一目标地址是否需要支持ARP类型的PDCP SDU,所述第一目标地址为所述终端设备的目标地址。
本申请一些实施例中,所述第一目标地址的能力信息通过侧行链路用户设备信息上报给网络设备。
可选地,在一些实施例中,上述通信单元可以是通信接口或收发器,或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解,根据本申请实施例的终端设备500可对应于本申请方法实施例中的网络设 备,并且终端设备500中的各个单元的上述和其它操作和/或功能分别为了实现图8所示方法300中第二终端的相应流程,为了简洁,在此不再赘述。
图11是根据本申请实施例的网络设备的示意性框图。图11的网络设备800包括:
通信单元810,用于向终端设备发送第一信息,其中,所述第一信息用于确定侧行数据包的版本信息或所述侧行数据包中的分组数据汇聚协议PDCP服务数据单元SDU的类型。
可选地,所述终端设备可以为前文所述的第一终端和/或第二终端。
本申请一些实施例中,所述第一信息包括以下中的至少一项:
第一映射关系,用于指示资源池和数据包的版本信息的映射关系;
第二映射关系,用于指示侧行数据包的目标地址和侧行数据包的版本信息的映射关系;
第三映射关系,用于指示地址解析协议ARP类型的PDCP SDU对应的逻辑信道标识LCID以及非ARP类型的PDCP SDU对应的LCID。
本申请一些实施例中,所述通信单元810还用于:
接收所述终端设备上报的第一目标地址的能力信息,所述第一目标地址的能力信息用于指示所述第一目标地址是否需要支持ARP类型的PDCP SDU,所述第一目标地址为所述终端设备的目标地址。
本申请一些实施例中,所述第一目标地址的能力信息通过侧行链路用户设备信息上报给网络设备。
本申请一些实施例中,所述侧行数据包的版本信息为第一版本或第二版本,其中,所述第一版本支持发送或接收地址解析协议ARP类型的PDCP SDU,所述第二版本不支持发送或接收ARP类型的PDCP SDU。
本申请一些实施例中,所述第一版本包括版本17,所述第二版本包括版本16。
本申请一些实施例中,所述第一数据包的版本信息包括所述第一数据包的发送规范。
应理解,根据本申请实施例的网络设备800可对应于本申请方法实施例中的网络设备,并且网络设备800中的各个单元的上述和其它操作和/或功能分别为了实现图8所示方法300中网络设备的相应流程,为了简洁,在此不再赘述。
图12是本申请实施例提供的一种通信设备600示意性结构图。图12所示的通信设备600包括处理器610,处理器610可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图12所示,通信设备600还可以包括存储器620。其中,处理器610可以从存储器620中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器620可以是独立于处理器610的一个单独的器件,也可以集成在处理器610中。
可选地,如图12所示,通信设备600还可以包括收发器630,处理器610可以控制该收发器630与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。
其中,收发器630可以包括发射机和接收机。收发器630还可以进一步包括天线,天线的数量可以为一个或多个。
可选地,该通信设备600具体可为本申请实施例的网络设备,并且该通信设备600可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该通信设备600具体可为本申请实施例的第一终端或第二终端,并且该通信设备600可以实现本申请实施例的各个方法中由第一终端或第二终端实现的相应流程,为了简洁,在此不再赘述。
图13是本申请实施例的芯片的示意性结构图。图13所示的芯片700包括处理器710, 处理器710可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图13所示,芯片700还可以包括存储器720。其中,处理器710可以从存储器720中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器720可以是独立于处理器710的一个单独的器件,也可以集成在处理器710中。
可选地,该芯片700还可以包括输入接口730。其中,处理器710可以控制该输入接口730与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。
可选地,该芯片700还可以包括输出接口740。其中,处理器710可以控制该输出接口740与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。
可选地,该芯片可应用于本申请实施例中的网络设备,并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该芯片可应用于本申请实施例中的第一终端或第二终端,并且该芯片可以实现本申请实施例的各个方法中由第一终端或第二终端实现的相应流程,为了简洁,在此不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
图14是本申请实施例提供的一种通信系统900的示意性框图。如图14所示,该通信系统900包括第一终端910、第二终端920和网络设备930。
其中,该第一终端910可以用于实现上述方法中由第一终端或第二终端实现的相应的功能,该第二终端920可以用于实现上述方法中由第二终端实现的相应的功能,以及该网络设备930可以用于实现上述方法中由网络设备实现的相应的功能为了简洁,在此不再赘述。
应理解,本申请实施例的处理器可能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(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,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。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),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,本文描述的系统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。
应理解,上述存储器为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质,用于存储计算机程序。
可选的,该计算机可读存储介质可应用于本申请实施例中的网络设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机可读存储介质可应用于本申请实施例中的第一终端或第二终端,并且该计算机程序使得计算机执行本申请实施例的各个方法中由第一终端或第二终端实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序产品,包括计算机程序指令。
可选的,该计算机程序产品可应用于本申请实施例中的网络设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序产品可应用于本申请实施例中的第一终端或第二终端,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由第一终端或第二终端实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的,该计算机程序可应用于本申请实施例中的网络设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序可应用于本申请实施例中的第一终端或第二终端,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由第一终端或第二终端实现的相应流程,为了简洁,在此不再赘述。
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,上述描述的系统、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,所揭露的系统、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系统,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。
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所述以权利要求的保护范围为准。
Claims (64)
- 一种侧行传输的方法,其特征在于,包括:第一终端根据第二终端发送的第一数据包的关联信息,确定所述第一数据包的版本信息或所述第一数据包的分组数据汇聚协议PDCP服务数据单元SDU类型;根据所述第一数据包的版本信息或所述第一数据包的PDCP SDU类型,确定是否进行所述第一数据包的接收。
- 根据权利要求1所述的方法,其特征在于,所述第一数据包的关联信息包括以下中的至少一种:用于调度所述第一数据包的侧行控制信息SCI,用于传输所述第一数据包的资源池,所述第一数据包中携带的信息。
- 根据权利要求2所述的方法,其特征在于,所述SCI包括第一指示信息,所述第一指示信息用于指示所述第一数据包的版本信息。
- 根据权利要求2或3所述的方法,其特征在于,所述第一终端上配置有第一映射关系,所述第一映射关系用于表征资源池和数据包的版本信息的映射关系。
- 根据权利要求2-4中任一项所述的方法,其特征在于,所述第一数据包中携带的信息包括以下中的至少一项:所述第一数据包中的媒体接入控制MAC协议数据单元PDU子头中的目标地址信息、所述第一数据包中的MAC PDU子头中的版本信息、所述第一数据包中的MAC PDU子头中的预留信息。
- 根据权利要求5所述的方法,其特征在于,所述第一终端上配置有第二映射关系,所述第二映射关系用于表征数据包的目标地址和数据包的版本信息的映射关系。
- 根据权利要求6所述的方法,其特征在于,所述第二映射关系是网络设备配置的,或者,是由所述第二终端发送给所述第一终端的,或者,是预定义的。
- 根据权利要求5-7中任一项所述的方法,其特征在于,所述第一数据包的MAC PDU子头中的版本信息的取值用于指示所述第一数据包的版本信息在至少两个版本中对应的目标版本,其中,所述至少两个版本包括第一版本和第二版本。
- 根据权利要求5-8中任一项所述的方法,其特征在于,所述第一数据包的MAC PDU子头中的预留信息的取值用于指示所述第一数据包的版本信息在至少两个版本中对应的目标版本,其中,所述至少两个版本包括第一版本和第二版本。
- 根据权利要求2-9中任一项所述的方法,其特征在于,所述第一数据包的版本信息为第一版本或第二版本,其中,所述第一版本支持发送或接收地址解析协议ARP类型的PDCP SDU,所述第二版本不支持发送或接收ARP类型的PDCP SDU。
- 根据权利要求10的方法,其特征在于,所述根据所述第一数据包的版本信息或所述第一数据包的PDCP SDU类型,确定是否进行所述第一数据包的接收,包括:在所述第一数据包的版本信息为第一版本,并且所述第一终端不支持接收ARP类型的PDCP SDU的情况下,所述第一终端丢弃所述第一数据包;或者在所述第一数据包的版本信息为第一版本,并且所述第一终端支持接收ARP类型的PDCP SDU的情况下,所述第一终端接收所述第一数据包。
- 根据权利要求8-11中任一项所述的方法,其特征在于,所述第一版本包括版本17,所述第二版本包括版本16。
- 根据权利要求1所述的方法,其特征在于,所述第一数据包的关联信息包括以下中的至少一种:所述第一数据包中的MAC子PDU的子头中的预留信息,所述第一数据包中的MAC子PDU的子头中的逻辑信道标识LCID。
- 根据权利要求13所述的方法,其特征在于,所述第一数据包的关联信息用于确定所述第一数据包中的所述MAC子PDU的PDCP SDU类型是否为ARP类型。
- 根据权利要求14所述的方法,其特征在于,所述第一数据包的MAC子PDU的子头中的预留信息的不同取值用于指示所述MAC子PDU的PDCP SDU类型是否为ARP类型。
- 根据权利要求13-15中任一项所述的方法,其特征在于,所述第一终端上配置有第三映射关系,所述第三映射关系用于指示ARP类型的PDCP SDU对应的LCID以及非ARP类型的PDCP SDU对应的LCID。
- 根据权利要求16所述的方法,其特征在于,所述第三映射关系是网络设备配置的,或者,是由所述第二终端发送给所述第一终端的,或者,是预定义的。
- 根据权利要求14-17中任一项所述的方法,其特征在于,所述根据所述第一数据包的版本信息或所述第一数据包的PDCP SDU类型,确定是否进行所述第一数据包的接收,包括:在所述第一数据包中的第一MAC子PDU包括ARP类型的PDCP SDU,并且所述终端设备支持接收ARP类型的PDCP SDU的情况下,所述终端设备接收所述第一MAC子PDU中的MAC SDU;或者在所述第一数据包中的第一MAC子PDU包括ARP类型的PDCP SDU,并且所述终端设备不支持接收ARP类型的PDCP SDU的情况下,所述终端设备丢弃所述第一MAC子PDU中的MAC SDU。
- 根据权利要求1-18中任一项所述的方法,其特征在于,所述方法还包括:所述第一终端向所述第二终端上报第一能力信息,所述第一能力信息用于指示所述第一终端是否支持接收ARP类型的PDCP SDU。
- 根据权利要求19所述的方法,其特征在于,所述第一能力信息是通过物理侧行反馈信道PSFCH发送的。
- 根据权利要求1-20中任一项所述的方法,其特征在于,所述方法还包括:所述第一终端接收所述第二终端上报的第二能力信息,所述第二能力信息用于指示所述第二终端是否支持接收ARP类型的PDCP SDU。
- 根据权利要求1-21中任一项所述的方法,其特征在于,所述第一数据包的版本信息包括所述第一数据包的发送规范。
- 一种侧行传输的方法,其特征在于,包括:第二终端向第一终端发送第一数据包,其中,所述第一数据包的关联信息用于确定所述第一数据包的版本信息或所述第一数据包中的分组数据汇聚协议PDCP服务数据单元SDU的类型。
- 根据权利要求23所述的方法,其特征在于,所述第一数据包的关联信息包括以下中的至少一种:用于调度所述第一数据包的侧行控制信息SCI,用于传输所述第一数据包的资源池,所述第一数据包中携带的信息。
- 根据权利要求24所述的方法,其特征在于,所述SCI包括第一指示信息,所述第一指示信息用于指示所述第一数据包的版本信息。
- 根据权利要求24或25所述的方法,其特征在于,所述第一终端上配置有第一映射关系,所述第一映射关系用于表征资源池和数据包的版本信息的映射关系。
- 根据权利要求24-26中任一项所述的方法,其特征在于,所述第一数据包中携带的信息包括以下中的至少一项:所述第一数据包中的媒体接入控制MAC协议数据单元PDU子头中的目标地址信息、所述第一数据包中的MAC PDU子头中的版本信息、所述第一数据包中的MAC PDU子头中的预留信息。
- 根据权利要求27所述的方法,其特征在于,所述第二终端上配置有第二映射关系,所述第二映射关系用于表征数据包的目标地址和数据包的版本信息的映射关系。
- 根据权利要求28所述的方法,其特征在于,所述第二映射关系是网络设备配置的,或者,是预定义的。
- 根据权利要求27-29中任一项所述的方法,其特征在于,所述第一数据包的MAC PDU子头中的版本信息的取值用于指示所述第一数据包的版本信息为在至少两个版本中对应的目标版本,其中,所述至少两个版本包括第一版本和第二版本。
- 根据权利要求27-30中任一项所述的方法,其特征在于,所述第一数据包的MAC PDU子头中的预留信息的取值用于指示所述第一数据包的版本信息为在至少两个版本中对应的目标版本,其中,所述至少两个版本包括第一版本和第二版本。
- 根据权利要求24-31中任一项所述的方法,其特征在于,所述第一数据包的版本信息为第一版本或第二版本,其中,所述第一版本支持发送或接收地址解析协议ARP类型的PDCP SDU,所述第二版本不支持发送或接收ARP类型的PDCP SDU。
- 根据权利要求30-32中任一项所述的方法,其特征在于,所述第一版本包括版本17,所述第二版本包括版本16。
- 根据权利要求23-33中任一项所述的方法,其特征在于,所述第一数据包的版本信息包括所述第一数据包的发送规范。
- 根据权利要求23所述的方法,其特征在于,所述第一数据包的关联信息包括以下中的至少一种:所述第一数据包中的MAC子PDU的子头中的预留信息,所述第一数据包中的MAC子PDU的子头中的逻辑信道标识LCID。
- 根据权利要求35所述的方法,其特征在于,所述第一数据包的关联信息用于确定所述第一数据包中的所述MAC子PDU的PDCP SDU类型是否为ARP类型。
- 根据权利要求36所述的方法,其特征在于,所述第一数据包的MAC子PDU的子头中的预留信息的取值用于指示所述MAC子PDU的PDCP SDU类型是否为ARP类型。
- 根据权利要求35-37中任一项所述的方法,其特征在于,所述第二终端上配置有第三映射关系,所述第三映射关系用于指示ARP类型的PDCP SDU对应的LCID以及非ARP类型的PDCP SDU对应的LCID。
- 根据权利要求38所述的方法,其特征在于,所述第三映射关系是网络设备配置的,或者,是预定义的。
- 根据权利要求23-39中任一项所述的方法,其特征在于,所述方法还包括:所述第二终端接收所述第一终端上报的第一能力信息,所述第一能力信息用于指示所述第一终端是否支持接收ARP类型的PDCP SDU。
- 根据权利要求40所述的方法,其特征在于,所述第一能力信息是通过物理侧行反馈信道PSFCH发送的。
- 根据权利要求23-41中任一项所述的方法,其特征在于,所述方法还包括:所述第二终端向所述第一终端上报的第二能力信息,所述第二能力信息用于指示所述第二终端是否支持接收ARP类型的PDCP SDU。
- 根据权利要求23-42中任一项所述的方法,其特征在于,所述方法还包括:所述第二终端向网络设备发送第一目标地址的能力信息,所述第一目标地址的能力信息用于指示所述第一目标地址是否需要支持ARP类型的PDCP SDU,所述第一目标地址为所述第二终端的目标地址。
- 根据权利要求43所述的方法,其特征在于,所述第一目标地址的能力信息通过侧行链路用户设备信息上报给网络设备。
- 一种侧行传输的方法,其特征在于,包括:网络设备向终端设备发送第一信息,其中,所述第一信息用于确定侧行数据包的版本信息或所述侧行数据包中的分组数据汇聚协议PDCP服务数据单元SDU的类型。
- 根据权利要求45所述的方法,其特征在于,所述第一信息包括以下中的至少一项:第一映射关系,用于指示资源池和数据包的版本信息的映射关系;第二映射关系,用于指示侧行数据包的目标地址和侧行数据包的版本信息的映射关系;第三映射关系,用于指示地址解析协议ARP类型的PDCP SDU对应的逻辑信道标识LCID以及非ARP类型的PDCP SDU对应的LCID。
- 根据权利要求45或46所述的方法,其特征在于,所述方法还包括:所述网络设备接收所述终端设备上报的第一目标地址的能力信息,所述第一目标地址的能力信息用于指示所述第一目标地址是否需要支持ARP类型的PDCP SDU,所述第一目标地址为所述终端设备的目标地址。
- 根据权利要求47所述的方法,其特征在于,所述第一目标地址的能力信息通过侧行链路用户设备信息上报给网络设备。
- 根据权利要求45-48中任一项所述的方法,其特征在于,所述侧行数据包的版本信息为第一版本或第二版本,其中,所述第一版本支持发送或接收地址解析协议ARP类型的PDCP SDU,所述第二版本不支持发送或接收ARP类型的PDCP SDU。
- 根据权利要求49所述的方法,其特征在于,所述第一版本包括版本17,所述第二版本包括版本16。
- 一种终端设备,其特征在于,包括:处理单元,用于根据第二终端发送的第一数据包的关联信息,确定所述第一数据包的版本信息或所述第一数据包中的分组数据汇聚协议PDCP服务数据单元SDU的类型;以及根据所述第一数据包的版本信息或所述第一数据包的PDCP SDU类型,确定是否进行所述第一数据包的接收。
- 一种终端设备,其特征在于,包括:通信单元,用于向第一终端发送第一数据包,其中,所述第一数据包的关联信息用于确定所述第一数据包的版本信息或所述第一数据包中的分组数据汇聚协议PDCP服务数据单元SDU的类型。
- 一种网络设备,其特征在于,包括:通信单元,用于向终端设备发送第一信息,其中,所述第一信息用于确定侧行数据包的版本信息或所述侧行数据包中的分组数据汇聚协议PDCP服务数据单元SDU的类型。
- 一种终端设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1至22中任一项所述的方法。
- 一种终端设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求23至44中任一项所述的方法。
- 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至22中任一项所述的方法,或如权利要求23至44中任一项所述的方法。
- 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至22中任一项所述的方法,或如权利要求23至44中任一项所述的方法。
- 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1至22中任一项所述的方法,或如权利要求23至44中任一项所述的方法。
- 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求1至22中任一项所述的方法,或如权利要求23至44中任一项所述的方法。
- 一种网络设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求45至50中任一项所述的方法。
- 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求45至50中任一项所述的方法。
- 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求45至50中任一项所述的方法。
- 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求45至50中任一项所述的方法。
- 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求45至50中任一项所述的方法。
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