WO2019196748A1 - Data transmission method and apparatus - Google Patents

Data transmission method and apparatus Download PDF

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Publication number
WO2019196748A1
WO2019196748A1 PCT/CN2019/081563 CN2019081563W WO2019196748A1 WO 2019196748 A1 WO2019196748 A1 WO 2019196748A1 CN 2019081563 W CN2019081563 W CN 2019081563W WO 2019196748 A1 WO2019196748 A1 WO 2019196748A1
Authority
WO
WIPO (PCT)
Prior art keywords
radio bearer
preset threshold
configuration information
measurement result
data
Prior art date
Application number
PCT/CN2019/081563
Other languages
French (fr)
Chinese (zh)
Inventor
王和俊
李明超
于映辉
刘航
Original Assignee
华为技术有限公司
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Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2019196748A1 publication Critical patent/WO2019196748A1/en

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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
    • H04W28/08—Load balancing or load distribution
    • H04W28/082—Load balancing or load distribution among bearers or channels
    • 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
    • H04W28/08—Load balancing or load distribution
    • H04W28/09—Management thereof
    • H04W28/0958—Management thereof based on metrics or performance parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Definitions

  • the present application relates to the field of vehicle networking technologies, and in particular, to a data transmission method and apparatus.
  • Vehicle-mounted terminals can communicate between Vehicle to Vehicle (V2V), Vehicle to Infrastructure (V2I), Vehicle to Pedestrian (V2P), or Vehicles and Vehicles.
  • Communication technologies such as Voice to Network (V2N) can acquire road condition information or receive information services in time. These communication methods can be collectively referred to as V2X communication.
  • V2X services can be transmitted through the Sidelink communication technology.
  • the interface that the vehicle communicates with the surrounding terminals through the direct connection (Sideline) may be referred to as a PC5 interface.
  • the vehicle can implement the vehicle networking communication by transmitting information to the base station and then forwarding the base station to other vehicles.
  • the interface between the vehicle and the base station can be referred to as a Uu interface.
  • the V2X service can be sent through the Uu interface, forwarded by the LTE uplink and the base station (and the core network), and finally sent to the peer UE; or sent through the PC5 interface, and directly sent to the peer UE via the V2X Sidelink (direct link). .
  • the transmission path of the V2X service is selected by the upper layer of the terminal, which may be determined by the adaptation layer or the application layer, and the upper layer is determined according to the quality of service (QoS) requirements of the service or/and the service type. Select the transmission path for service transmission.
  • QoS quality of service
  • the path cannot be dynamically switched according to the channel measurement result, and the potential delay is large, which cannot meet the performance requirement of the V2X service with high reliability and low delay.
  • the embodiment of the present invention provides a data transmission method and device, which solves the problem that a delay caused by selecting a transmission path by an upper layer of a terminal during transmission of an existing V2X service is large.
  • the embodiment of the present application provides a data transmission method, including: acquiring, by a terminal device, configuration information, where the configuration information includes a first flow identifier, and configuration information and a direct link of the data radio bearer corresponding to the first flow identifier.
  • the configuration information of the radio bearer the terminal device acquires the service data and the second stream identifier corresponding to the service data; the terminal device according to the first stream identifier, the second stream identifier, and the first stream identifier
  • the configuration information of the data radio bearer and the configuration information of the direct link radio bearer select at least one of the corresponding data radio bearer and the direct link radio bearer as the target radio bearer; the terminal device transmits on the target radio bearer Business data.
  • the terminal device can flexibly select the transmission path of the service data in the access layer, reduce the handover delay of the transmission path, and flexibly balance the channel load.
  • the terminal device selects according to the first flow identifier, the second flow identifier, the configuration information of the data radio bearer corresponding to the first flow identifier, and the configuration information of the radio link of the direct link. At least one of the data radio bearer and the direct link radio bearer as the target radio bearer, including: when the second stream identifier is the same as the first stream identifier, the terminal device selects the data radio bearer and the At least one of the direct link radio bearers acts as a target radio bearer.
  • the terminal device selects at least one of the data radio bearer and the direct link radio bearer as the target radio bearer, and includes the following three schemes:
  • the terminal device acquires preset threshold configuration information, where the preset threshold configuration information includes at least one of a first preset threshold and a second preset threshold, and the terminal device determines the preset result according to the measurement result and the preset
  • the threshold configuration information selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer, where the first preset threshold includes at least one channel load preset threshold; the second preset threshold At least one signal strength preset threshold is included; the measurement result includes at least one of a channel load measurement result and a signal strength measurement result.
  • the terminal device selects a transmission path according to the measurement result and the preset threshold configuration information, so that the terminal device can select an appropriate transmission path according to the channel load condition or the signal strength, and reduce the transmission delay of the service data.
  • Solution 2 The terminal device acquires service characteristic configuration information, and the terminal device selects at least the data radio bearer and the direct link radio bearer according to the service characteristic configuration information and the service characteristic of the service data. One as a target radio bearer.
  • the terminal device selects the transmission data according to the service characteristics of the service data, and can meet different service requirements of different service data.
  • Solution 3 The terminal device acquires target radio bearer configuration information from a network device, and the terminal device selects at least one of the data radio bearer and the direct link radio bearer as a target according to the target radio bearer configuration information.
  • Wireless bearer The terminal device acquires target radio bearer configuration information from a network device, and the terminal device selects at least one of the data radio bearer and the direct link radio bearer as a target according to the target radio bearer configuration information. Wireless bearer.
  • the terminal device selects a transmission path according to the indication of the network device, so that the terminal device that does not have the measurement function can implement flexible selection of the transmission path at the access layer.
  • the terminal device selects at least one of the data radio bearer and the direct link radio bearer as a target radio according to the measurement result and the preset threshold configuration information.
  • the bearer may be implemented by: the terminal device selecting at least one of the data radio bearer and the direct link radio bearer according to the at least one channel load preset threshold and the at least one channel load measurement result.
  • the terminal device selects at least one of the data radio bearer and the direct link radio bearer as a target according to the at least one signal strength preset threshold and the at least one signal strength measurement result Radio bearer; or the terminal device selects the data according to the at least one channel load preset threshold, the at least one signal strength preset threshold, the at least one channel load measurement result, and the at least one signal strength measurement result At least one of a radio bearer and the direct link radio bearer is targeted Radio bearer.
  • the terminal device acquires service characteristic configuration information, and the terminal device selects the data radio bearer according to the service characteristic configuration information and the service characteristic of the service data, and the At least one of the direct link radio bearers is used as the target radio bearer, and can be implemented by the following process:
  • the terminal device acquires service characteristic configuration information, where the service feature configuration information includes a first service feature and target radio bearer configuration information corresponding to the first service feature, and the terminal device acquires a second service corresponding to the service data. Determining, by the terminal device, at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the second service characteristic and the service characteristic configuration information; wherein, the service feature includes priority At least one of a level, a service type, a source identifier, a destination identifier, a delay, a reliability, and a speed.
  • the terminal device acquires target radio bearer configuration information from the network device, and the terminal device selects the data radio bearer and the direct link according to the target radio bearer configuration information.
  • At least one of the radio bearers is used as the target radio bearer, and can be implemented in the following manner:
  • Manner 1 The terminal device acquires the measurement result, reports the measurement result to the network device, and acquires target radio bearer configuration information from the network device, where the terminal device performs configuration information according to the target radio bearer. At least one of the data radio bearer and the direct link radio bearer is selected as the target radio bearer.
  • the network device selects a transmission path based on the measurement result of the channel load or the signal strength, and configures the transmission path to the terminal device, so that the selection of the transmission path by the terminal device is also selected based on the measurement result, thereby balancing the channel load.
  • Manner 2 The terminal device acquires the measurement result, and selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the measurement result and the preset threshold configuration information. And the selected target radio bearer or the target radio bearer configuration information is reported to the network device, and the target radio bearer configuration information is obtained from the network device, where the terminal device selects the location according to the target radio bearer configuration information. At least one of the data radio bearer and the direct link radio bearer is referred to as a target radio bearer.
  • the terminal device selects the transmission path based on the measurement result of the channel load or the signal strength, and reports the transmission path to the network device.
  • the network device configures the target radio bearer to transmit the service data to the terminal through the target radio bearer configuration information.
  • the terminal device acquires target radio bearer configuration information from the network device, including the following situations:
  • the terminal device acquires target radio bearer configuration information sent by the network device by using radio resource control RRC signaling.
  • Case 2 The terminal device acquires target radio bearer configuration information sent by the network device by using a field in a service data adaptation protocol (SDAP) data unit PDU header.
  • SDAP service data adaptation protocol
  • Case 3 The terminal device acquires target radio bearer configuration information sent by the network device by using a media intervention control element MAC CE signaling.
  • Case 4 The terminal device acquires target radio bearer configuration information sent by the network device by using downlink control information DCI.
  • the terminal device selects at least one of the data radio bearer and the direct link radio bearer as the target radio bearer, including: the first protocol layer of the terminal device acquires the measurement a result, and selecting a target radio bearer according to the measurement result, where the first protocol layer of the terminal device transmits service data on the target radio bearer; or the second protocol layer of the terminal device acquires the measurement result, and Selecting a target radio bearer according to the measurement result, where the first protocol layer of the terminal device transmits service data on the target radio bearer, where the first protocol layer is a SDAP layer; or the first protocol layer is One of an RRC layer, a PDCP layer, an RLC layer, and a MAC layer; the second protocol layer is an RRC layer or a MAC layer, or the second protocol layer is one of a SDAP layer, a PDCP layer, an RCL layer, and a PHY layer.
  • the at least one channel load preset threshold includes: a first channel load preset threshold; or the at least one channel load preset threshold includes a first channel load preset threshold and a second channel load a preset threshold; the at least one signal strength preset threshold includes a first signal strength preset threshold; or the at least one signal strength preset threshold includes a first signal strength preset threshold and a second preset signal strength preset threshold .
  • the terminal device selects according to the at least one channel load preset threshold, the at least one signal strength preset threshold, the at least one channel load measurement result, and the at least one signal strength measurement result.
  • At least one of the data radio bearer and the direct link radio bearer is used as the target radio bearer, including:
  • the terminal device selects Determining the data radio bearer as the target radio bearer;
  • the terminal device selects Determining the direct link radio bearer as the target radio bearer;
  • the terminal device selects the data when the channel load measurement result is less than or equal to the first channel load preset threshold and the signal strength measurement result is greater than or equal to the first signal strength preset threshold.
  • a radio bearer or the direct link radio bearer as a target radio bearer; or
  • the terminal device selects Determining the data radio bearer as the target radio bearer;
  • the terminal device selects Determining the direct link radio bearer as the target radio bearer;
  • the terminal device selects the data when the channel load measurement result is less than or equal to the first channel load preset threshold and the signal strength measurement result is greater than or equal to the signal strength second preset threshold.
  • a radio bearer or the direct link radio bearer as a target radio bearer; or
  • the terminal device selects the data when the channel load measurement result is greater than or equal to the second channel load preset threshold and the signal strength measurement result is less than or equal to the signal strength first preset threshold.
  • the radio bearer and the direct link radio bearer are the target radio bearers.
  • the terminal device can select the transmission path based on the channel load measurement result, so that the channel load can be balanced; the transmission path can be selected based on the signal strength measurement result to ensure the reliability index of the service data; and the channel load can also be integrated.
  • the measurement results and signal strength measurement results are used to select the transmission path to ensure that the service quality indicators of the service data are guaranteed.
  • the embodiment of the present application provides a data transmission apparatus, which is applied to a terminal device, and includes:
  • a processing unit configured to acquire configuration information, where the configuration information includes a first flow identifier, configuration information of a data radio bearer corresponding to the first flow identifier, and configuration information of a radio link of a direct link; and a receiving unit, configured to acquire service data a second stream identifier corresponding to the service data; the processing unit is further configured to: according to the first stream identifier, the second stream identifier, the configuration information of the data radio bearer corresponding to the first stream identifier, and the direct connection
  • the configuration information of the link radio bearer selects at least one of the corresponding data radio bearer and the direct link radio bearer as the target radio bearer, and the sending unit is configured to transmit the service data on the target radio bearer.
  • the processing unit is specifically configured to: when the second flow identifier is the same as the first flow identifier, select at least one of the data radio bearer and the direct link radio bearer As the target radio bearer.
  • the processing unit is specifically configured to: acquire preset threshold configuration information, where the preset threshold configuration information includes at least one of a first preset threshold and a second preset threshold, according to the measurement result and The preset threshold configuration information selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer, where the first preset threshold includes at least one channel load preset threshold; The second preset threshold includes at least one signal strength preset threshold; the measurement result includes at least one of a channel load measurement result and a signal strength measurement result; or
  • Obtaining service characteristic configuration information where the processing unit is configured to: select at least one of the data radio bearer and the direct link radio bearer as a target according to the service characteristic configuration information and the service characteristic of the service data Wireless bearer; or
  • target radio bearer configuration information from the network device, and selecting at least one of the data radio bearer and the direct link radio bearer as the target radio bearer according to the target radio bearer configuration information.
  • the processing unit is specifically configured to:
  • At least one of the path radio bearers acts as a target radio bearer.
  • the processing unit is specifically configured to: obtain service characteristic configuration information, where the service feature configuration information includes a first service feature and target radio bearer configuration information corresponding to the first service feature; a second service characteristic corresponding to the service data; selecting at least one of the data radio bearer and the direct link radio bearer as the target radio bearer according to the second service characteristic and the service characteristic configuration information;
  • the feature includes at least one of a priority, a service type, a source identifier, a destination identifier, a delay, a reliability, and a speed.
  • the processing unit is specifically configured to:
  • At least one of a radio bearer and the direct link radio bearer is a target radio bearer.
  • the processing unit when the processing unit acquires the target radio bearer configuration information from the network device, the processing unit is configured to: acquire the target radio bearer configuration information sent by the network device by using the radio resource control RRC command; or adopt the service data.
  • the field in the PDU header of the protocol SDAP protocol data unit acquires the target radio bearer configuration information sent by the network device; or obtains the target radio bearer configuration information sent by the network device by using the media intervention control element MAC CE signaling; or
  • the downlink control information DCI acquires target radio bearer configuration information sent by the network device.
  • the processing unit selects at least one of the data radio bearer and the direct link radio bearer as the target radio bearer, specifically, the first protocol layer of the terminal device is used. Obtaining the measurement result, and selecting a target radio bearer according to the measurement result, using the first protocol layer of the terminal device to transmit service data on the target radio bearer; or, by using a second protocol layer of the terminal device Obtaining the measurement result, and selecting a target radio bearer according to the measurement result, using the first protocol layer of the terminal device to transmit service data on the target radio bearer, where the first protocol layer is a SDAP layer; Or the first protocol layer is one of an RRC layer, a PDCP layer, an RLC layer, and a MAC layer; the second protocol layer is an RRC layer or a MAC layer, or the second protocol layer is an SDAP layer, a PDCP layer, One of the RCL layer and the PHY layer.
  • the at least one channel load preset threshold includes: a first channel load preset threshold; or the at least one channel load preset threshold includes a first channel load preset threshold and a second channel load a preset threshold; the at least one signal strength preset threshold includes a first signal strength preset threshold; or the at least one signal strength preset threshold includes a first signal strength preset threshold and a second preset signal strength preset threshold .
  • the processing unit is specifically configured to:
  • the radio bearer is the target radio bearer
  • the direct link radio bearer is the target radio bearer
  • the radio bearer is the target radio bearer
  • the direct link radio bearer is referred to as a target radio bearer.
  • the present application provides a terminal device comprising means for performing each of the methods or actions performed by the terminal device in the first aspect or any of the above designs.
  • the unit included in the terminal device can be implemented by software and/or hardware.
  • the application provides a terminal device.
  • the terminal device includes at least one processor and a communication interface.
  • the communication interface may be used for communication interaction between the terminal device and other devices, such as a radio access network device and/or other terminal devices, such as interaction control signaling and/or service data, etc., the communication interface may have communication
  • the communication function is implemented by a circuit, and the communication interface can also be designed as two circuits having communication and transceiving functions for communication interaction between the terminal device and the radio access network device, and for the terminal device and other terminals.
  • the communication interaction between the devices when the program instructions are executed in the at least one processor, enables the functions of the terminal device in the first aspect or any of the designs described above.
  • the terminal device may further include a memory.
  • the terminal device may be a vehicle in a transportation communication system (such as V2X), or a communication device or system equipped to the vehicle, or a communication device or system temporarily used to communicate with the outside world.
  • V2X transportation communication system
  • the terminal device may be a vehicle in a transportation communication system (such as V2X), or a communication device or system equipped to the vehicle, or a communication device or system temporarily used to communicate with the outside world.
  • the present application provides a computer readable storage medium applicable to a terminal device.
  • the computer readable storage medium has program code that, when executed, causes the functions of the terminal device as in the first aspect described above and any of its designs.
  • the computer readable medium can store program code for execution by the terminal device, the program code including instructions for performing the functions of the terminal device of the first aspect or any of the designs described above.
  • the present application provides a computer program product, applicable to a terminal device, the computer program product comprising program instructions, when the program instructions are executed, to implement the first aspect or any of the designs thereof The function of the terminal device.
  • the terminal device is caused to perform the terminal device operation in the first aspect or any of the designs described above.
  • the present application provides a system chip, which is applicable to a terminal device, where the system chip includes at least one processor, and an input/output interface, when the instruction is executed at the at least one processor, so as to implement the first The functionality of the terminal device in either aspect or in any design.
  • the system chip may further include at least one memory and a bus for storing instructions and or data executed by the processor.
  • the application provides a communication system, the communication system comprising an entity as described in any one of the second, third, fourth, fifth, sixth, and seventh aspects.
  • FIG. 1 and 2 are schematic diagrams of a V2X transmission scenario in the present application
  • FIG. 3 is a flowchart of a service data transmission method according to the present application.
  • FIG. 4 is a schematic diagram of a service data transmission path of the present application.
  • Figure 5 is a structural diagram of a service data transmission apparatus of the present application.
  • FIG. 6 is a schematic structural diagram of a terminal device according to the present application.
  • LTE Long Term Evolution
  • 5G fifth generation mobile communication systems
  • a terminal is a device that provides voice and/or data connectivity to a user, for example, including a handheld device having a wireless connection function, or a processing device connected to a wireless modem.
  • the terminal can communicate with the core network via a Radio Access Network (RAN) to exchange voice and/or data with the RAN.
  • RAN Radio Access Network
  • the terminal may include a vehicle, a User Equipment (UE), a wireless terminal device, a mobile terminal device, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile Station, and Remote Station, Access Point (AP), Remote Terminal, Access Terminal, User Terminal, User Agent, or User Equipment, etc.
  • UE User Equipment
  • AP Access Point
  • a mobile phone or "cellular" phone
  • a computer with a mobile terminal device a dedicated terminal device in a Narrow Band Internet of Things (NB-IoT)
  • NB-IoT Narrow Band Internet of Things
  • portable pocket, handheld
  • PCS Personal Communication Service
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistants
  • the terminal may further include a V2X device, such as an On Broad Unit (OBU) in the vehicle, and hereinafter, the terminal is a V2X device as an example.
  • a V2X device such as an On Broad Unit (OBU) in the vehicle
  • OBU On Broad Unit
  • An access network device for example, including a base station (e.g., an access point), can refer to a device in the access network that communicates with the wireless terminal over one or more sectors over the air interface.
  • the base station can be used to convert the received air frame to an Internet Protocol (IP) packet as a router between the terminal and the rest of the access network, wherein the remainder of the access network can include an IP network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may include an evolved base station (eNB or e-NodeB, evolutional Node B) in an LTE system or an evolved LTE system (LTE-A), or a small base station in an LTE system or an LTE-A system (micro/pico eNB), or may include a next generation node B (gNB) in the NR system, or a transmission point (TP), or a transmission and receiver point (transmission and receiver point, TRP), etc., is not limited by the embodiment of the present invention.
  • eNB or e-NodeB, evolutional Node B in an LTE system or an evolved LTE system (LTE-A)
  • LTE-A evolved LTE system
  • micro/pico eNB small base station in an LTE system
  • gNB next generation node B
  • TP transmission point
  • TRP transmission and receiver point
  • the core network device includes, for example, a Mobility Management Entity (MME), or may also include a corresponding functional entity in the NR system.
  • MME Mobility Management Entity
  • V2X vehicles can communicate by vehicle to vehicle (V2V) or vehicle to road infrastructure (V2I), or communication between vehicles and pedestrians (Vehicle to Pedestrian, V2P), or Vehicle to Network (V2N) to obtain road condition information or receive information in time.
  • V2X communication can be collectively referred to as V2X communication.
  • V2V and V2I Take the most common V2V and V2I as an example: the vehicle can communicate with its surrounding vehicles by V2V communication, and its own speed, direction of travel, specific position, emergency brakes, etc., and the surrounding vehicles obtain the information to make the driver It is better to perceive the traffic conditions outside the line of sight, so that the dangerous situation can be pre-judged in advance, and then timely avoidance can be made.
  • the roadside infrastructure can also provide various types of service information and data network access for vehicles, and functions such as non-stop charging and in-vehicle entertainment greatly improve traffic intelligence.
  • the network used by V2X communication is generally referred to as an Internet of Vehicles.
  • D2D Device to Device
  • D2D technology can support direct data communication between terminals and terminals using dedicated air interface technology. It is an end-to-end direct communication technology.
  • the biggest difference from the traditional cellular communication technology is that, with the support of the D2D technology, the terminal and the terminal can directly communicate without requiring the relay of the base station, and the base station can perform resource configuration, scheduling, and coordination, etc., between the auxiliary terminals.
  • Direct communication D2D technology can be applied to the Internet of Vehicles business.
  • the PC5 interface is a direct communication interface between the terminal device and the terminal device introduced in the D2D project of the 3rd Generation Partnership Project (3GPP) Release 12 (Rel-12).
  • the adjacent terminals can transmit data through the direct link within the effective communication range of the PC 5, without forwarding through the central node (for example, the base station), and do not need to transmit information through the traditional cellular link, and the communication is relatively fast. convenient.
  • the service data mainly includes the data under the V2X service, for example, the data under the local broadcast service of the non-(non)-IP service including the V2X, that is, the service data described in the embodiment of the present invention, Local broadcast data for non-IP traffic of V2X may be included.
  • LTE is currently the mainstream wireless communication technology, in which D2D technology is regarded as an important feature and standardization work, which supports direct communication between terminals.
  • V2X service data can be transmitted through D2D technology.
  • FIG. 1 which includes base station, vehicle 1 and vehicle 2, vehicle 1 and vehicle 2 can communicate directly through direct connection.
  • the vehicle can transmit the V2X service data to the base station, and then The base station transmits to other vehicles to implement the vehicle networking communication.
  • the interface in which the vehicle communicates with the surrounding terminals through direct connection may be referred to as a PC5 interface, and the interface between the vehicle and the base station may be referred to as a Uu interface.
  • FIG. 2 includes a base station, an MME, a vehicle 1, a vehicle 2, and a vehicle 3.
  • the vehicle 1 when the vehicle 1 generates V2X service data that needs to communicate with the vehicle 2, the vehicle 1 transmits the V2X service data to the base station, and the base station forwards the MME to the MME in the core network, and the MME performs route addressing and forwarding, and then the V2X service.
  • the data is sent to the base station, which in turn sends it to the vehicle 2.
  • the V2X service can be sent through the Uu interface, forwarded through the LTE uplink and the base station, and the core network, and finally sent to the peer terminal; or sent through the PC5 interface, and directly sent to the pair via the V2X direct link (sidelink). Terminal.
  • the V2X service is sent through the Uu interface. The reliability is higher.
  • the V2X service is sent through the PC5 interface, and the delay is lower.
  • the selected transmission path is different according to the service type of the service and the QoS requirement.
  • the transmission path includes a Uu interface, a PC5 interface, a Uu interface, a PC5 interface, a Uu interface, and a PC5 interface.
  • the transmission path selection of the V2X service is determined by the upper layer, for example, the adaptation layer or the application layer, and the upper layer selects according to the quality of service (QoS) requirements of the V2X service or/and the service type. Transmission path for service transmission.
  • QoS quality of service
  • the service data is delivered to the access layer; the network device establishes a corresponding bearer between the terminal device and the P-GW according to the QoS requirements of different services.
  • the terminal device filters the service data to the corresponding bearer based on the TFT Traffic Flow Template (TFT), so that each service can be transmitted in the bearer with the appropriate QoS.
  • TFT Traffic Flow Template
  • the upper layer When the upper layer selects the PC5 interface for service transmission, the upper layer submits the relevant parameters to the access layer in the form of a primitive, and the terminal device establishes a direct link radio bearer for the terminal device according to the destination ID of the different service (Sidelink Radio). Bearer, SLRB), and then use these bearers for service transmission.
  • Sidelink Radio Service
  • Bearer SLRB
  • the existing transmission path selection is performed in the upper layer. Because the working mechanism of the upper layer is different when the Uu interface is selected and the PC5 interface is selected, the access layer cannot flexibly perform path switching according to the channel measurement result, and the potential selection is brought in the path selection. Large delays cannot meet the performance requirements of V2X services with high reliability and low latency.
  • the embodiment of the present invention provides a new data transmission method, and performs selection of a transmission path or a radio bearer based on a stream (which may be QoS Flow).
  • the terminal acquires configuration information, where the configuration information includes a first flow identifier, configuration information of a data radio bearer corresponding to the first flow identifier, and configuration information of a radio link of a direct link; acquiring service data and the Corresponding to the second flow identifier corresponding to the service data, selecting the corresponding data wireless according to the first flow identifier, the second flow identifier, the configuration information of the data radio bearer corresponding to the first flow identifier, and the configuration information of the radio bearer of the direct link At least one of the bearer and the direct link radio bearer is used as the target radio bearer, and the service data is transmitted on the target radio bearer. Since the terminal device can flexibly select the transmission path according to actual needs, the delay of data transmission is reduced. .
  • An embodiment of the present application provides a service data transmission method, which may be performed by a terminal device.
  • the application scenario shown in FIG. 1 or the application scenario shown in FIG. 2 is applied as an example.
  • Step 30 The terminal acquires configuration information, where the configuration information includes a first flow identifier, configuration information of the DRB corresponding to the first flow identifier, and configuration information of the SLRB.
  • the access layer of the terminal acquires configuration information.
  • the configuration information of the DRB includes: a data radio bearer identifier (DRB ID) and a corresponding set of DRB configuration parameters
  • the DRB configuration parameter may include: PDCP configuration information (pdcp-Config),
  • RLC configuration information (rlc-Config), Evolved Packet System Bearer (EPS) bearer identifier (eps-BearerIdentity), logical channel identifier (logicalChannelIdentity), logical channel configuration information (logicalChannelConfig), and the like.
  • EPS Evolved Packet System Bearer
  • eps-BearerIdentity eps-BearerIdentity
  • logicalChannelIdentity logical channel identifier
  • logicalChannelConfig logical channel configuration information
  • the configuration information of the SLRB may include: a source identifier, a destination identifier, and a corresponding direct link radio bearer, and specifically includes carrier and/or resource pool configuration information, including carrier identifier, carrier configuration information, resource pool identifier, and resource pool configuration information. Configuration information.
  • the configuration information may be configured to the terminal in a pre-configured manner, or may be configured by the network device through RRC dedicated signaling or system broadcast.
  • the terminal may obtain the protocol in a standardized manner; or through pre-storage. Information acquisition; or obtain configuration information through the upper application.
  • the foregoing configuration information may include an enable indication information, configured to enable the DRB, the SLRB, or enable the DRB and the SLRB to be enabled simultaneously for the first flow identifier.
  • Step 31 The terminal acquires service data and a second flow identifier corresponding to the service data.
  • the data plane of the terminal acquires the service data, and the service data is transmitted from the upper layer to the access layer in the form of a stream, including the flow identifier and the service data, and the service characteristics corresponding to the service data, and the service characteristics include the priority (Proximity Service) Per-Packet Priority, PPPP), Source Identity, Destination Identity, and so on.
  • priority Proximity Service
  • PPPP Per-Packet Priority
  • Source Identity Source Identity
  • Destination Identity Destination Identity
  • Step 32 The terminal selects corresponding data radio bearer and direct according to the first flow identifier, the second flow identifier, the configuration information of the data radio bearer corresponding to the first stream identifier, and the configuration information of the radio link of the direct link. At least one of the link radio bearers acts as a target radio bearer.
  • the terminal selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer.
  • Step 33 The terminal transmits the service data on the target radio bearer.
  • the terminal selects at least one of the data radio bearer and the direct link radio bearer as the target radio bearer, which can be implemented by the following three implementation manners:
  • the terminal acquires preset threshold configuration information, where the preset threshold configuration information includes at least one of a first preset threshold and a second preset threshold, and the terminal according to the measurement result and the The preset threshold configuration information selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer, where the first preset threshold includes at least one channel load preset threshold; the second pre- The threshold is configured to include at least one signal strength preset threshold; the measurement result includes at least one of a channel load measurement result and a signal strength measurement result.
  • the channel load may be characterized by a Channel Busy Ratio (CBR), where the channel load preset threshold may be a CBR (Channel Busy Ratio, CBR) threshold, and a corresponding channel load measurement result. It is CBR; the signal strength can be characterized by Reference Signal Receiving Power (RSRP), the signal strength preset threshold can be an RSRP threshold, and the corresponding signal strength measurement result is RSRP.
  • CBR Channel Busy Ratio
  • RSRP Reference Signal Receiving Power
  • RSRP Reference Signal Receiving Power
  • Path selection criteria implementation when the terminal selects at least one of the data radio bearer and the direct link radio bearer as the target radio bearer according to the measurement result and the preset threshold configuration information, the following three types of transmission may be utilized. Path selection criteria implementation:
  • Transmission path selection criterion 1 The terminal selects at least one of the data radio bearer and the direct link radio bearer as a target radio according to the at least one channel load preset threshold and the at least one channel load measurement result. Hosted.
  • the terminal selects the data radio bearer as the target radio bearer.
  • the terminal device selects the direct link radio bearer as the target radio bearer.
  • the CBR threshold is represented by CBRthres, and when the CBR is greater than or equal to CBRthres, the terminal selects the data radio bearer as the target radio bearer. When the CBR is less than or equal to CBRthres, the terminal selects the direct link radio bearer as the target radio bearer.
  • the at least one channel load preset threshold includes a first channel load preset threshold and a second channel load preset threshold
  • the first CBR threshold is represented by CBRthresmin
  • Transmission path selection criterion 2 the terminal selects at least one of the data radio bearer and the direct link radio bearer as a target radio according to the at least one signal strength preset threshold and the at least one signal strength measurement result Hosted.
  • the terminal selects the data radio bearer as a target radio bearer; when the signal strength measurement result is less than or less than or equal to the first
  • the terminal device selects the direct link radio bearer as the target radio bearer.
  • the at least one signal strength preset threshold includes a first signal strength preset threshold and a second signal strength preset threshold
  • the first RSRP threshold is represented by RSRPthresmin
  • the second RSRP threshold is represented by RSRPthresmax, where RSRPthresmax If the RSRP is greater than or equal to RSRPthresmax, the terminal selects the data radio bearer as the target radio bearer, and when the RSRP is less than or equal to RSRPthresmin, the terminal selects the direct link radio bearer as the target radio. Hosted.
  • Transmission path selection criterion 3 the terminal selects the data radio bearer and the direct connection according to the channel load preset threshold, the signal strength preset threshold, the channel load measurement result, and the signal strength measurement result At least one of the link radio bearers acts as a target radio bearer.
  • Case 1 the case where the channel load preset threshold and the signal strength preset threshold both include a preset threshold.
  • the terminal selects a location
  • the data radio bearer is used as the target radio bearer.
  • the terminal device selects the straight The link radio bearer acts as the target radio bearer.
  • the terminal device selects the data when the channel load measurement result is less than or equal to the first channel load preset threshold and the signal strength measurement result is greater than or equal to the first signal strength preset threshold.
  • a radio bearer or the direct link radio bearer as a target radio bearer; or
  • the direct link radio bearer acts as the target radio bearer.
  • the CBR threshold includes CBRthres
  • the RSRP threshold includes RSRPthres:
  • the terminal selects the data radio bearer as the target radio bearer.
  • the terminal selects any one of the data radio bearer and the direct link radio bearer as the target radio bearer.
  • the terminal selects the data radio bearer and the direct link radio bearer as the target radio bearers.
  • the terminal selects the direct link radio bearer as the target radio bearer.
  • the channel load preset threshold includes a first channel load preset threshold and a second channel load preset.
  • the threshold is set, wherein the first channel load preset threshold is smaller than the second channel load preset threshold;
  • the signal strength preset threshold includes a first signal strength preset threshold and a second signal light preset threshold, wherein the first signal strength preset The threshold is less than the second signal strength preset threshold.
  • the terminal The data radio bearer is selected as the target radio bearer.
  • the terminal selects the The direct link radio bearer acts as the target radio bearer.
  • the terminal selects the data wireless when the channel load measurement result is less than or equal to the first channel load preset threshold and the signal strength measurement result is greater than or equal to the signal strength second preset threshold.
  • the bearer or the direct link radio bearer is the target radio bearer.
  • the terminal selects the data wireless when the channel load measurement result is greater than or equal to the second channel load preset threshold and the signal strength measurement result is less than or less than the signal strength first preset threshold.
  • the bearer and the direct link radio bearer are the target radio bearers.
  • the RSRP threshold and the CBR threshold respectively include two thresholds:
  • the CBR threshold includes CBRthresmin and CBRthresmax, and CBRthresmin is smaller than CBRthresmax;
  • the RSRP threshold includes RSRPthresmin and RSRPthresmax, and RSRPthresmin is smaller than RSRPthresmax.
  • the terminal selects the data radio bearer as the target radio bearer.
  • the terminal selects any one of the data radio bearer and the direct link radio bearer as the target radio bearer.
  • the terminal selects the direct link radio bearer as the target radio bearer.
  • the terminal selects the data radio bearer and the direct link radio bearer as the target radio bearers.
  • the selection of the target radio bearer may be semi-static, that is, the T duration is effective after each selection; or N times of service data transmission is effective.
  • the terminal acquires service characteristic configuration information, and the terminal selects the data radio bearer and the direct link radio bearer according to the service characteristic configuration information and the service characteristic of the service data. At least one of the wireless bearers as the target.
  • the service feature configuration information that is, the binding relationship between the service feature and the radio bearer.
  • the service feature configuration information can be configured by the base station or the core network to the terminal, or can be pre-configured or standardized in the form of a protocol.
  • the target radio bearer can be implemented by the following process:
  • the terminal acquires service feature configuration information, where the service feature configuration information includes a first service feature and target radio bearer configuration information corresponding to the first service feature.
  • S2 The terminal acquires a second service characteristic corresponding to the service data.
  • S3 The terminal selects at least one of the data radio bearer and the direct link radio bearer as the target radio bearer according to the second service characteristic and the service characteristic configuration information.
  • the service feature includes at least one of a priority, a service type, a source identifier, a destination identifier, a delay, a reliability, a speed, and the like.
  • the service characteristics of the service data are obtained together when the terminal acquires the service data.
  • the corresponding service characteristics are also transmitted in the form of parameters. Including priority, source identification, destination identification, delay, reliability, packet loss rate, (vehicle) speed, transmission rate, etc.
  • the terminal acquires target radio bearer configuration information from a network device, and the terminal selects at least one of the data radio bearer and the direct link radio bearer according to the target radio bearer configuration information.
  • target radio bearer when it is implemented, it may include the following two possible designs:
  • the terminal acquires the measurement result, reports the measurement result to the network device, and acquires target radio bearer configuration information from the network device, where the terminal is wireless according to the target
  • the bearer configuration information selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer.
  • the terminal acquires the measurement result, and selects at least one of the data radio bearer and the direct link radio bearer according to the measurement result and the preset threshold configuration information. And obtaining, by the network device, the target radio bearer configuration information, where the terminal selects at least the data radio bearer and the direct link radio bearer according to the target radio bearer configuration information.
  • an indication field may be used to indicate that the terminal selects at least one of the DRB, the SLRB, the DRB, or the SLRB, the DRB, and the SLRB, or the default bearer as the target radio bearer; It may be configuration information indicating a set of transmission paths or target radio bearers, and the terminal selects an appropriate transmission path or a target radio bearer according to the configuration information; or may indicate a set of path selection rules, and the terminal selects an appropriate transmission according to the path selection rule. Path or target radio bearer.
  • the terminal when the terminal selects at least one of the data radio bearer and the direct link radio bearer as the target radio bearer, the terminal is implemented by using different protocol layers:
  • the first protocol layer of the terminal acquires the measurement result, and selects a target radio bearer according to the measurement result, where the first protocol layer of the terminal transmits a service on the target radio bearer.
  • Data wherein the first protocol layer is a SDAP layer; or the first protocol layer is one of an RRC layer, a PDCP layer, an RLC layer, and a MAC layer.
  • the second protocol layer of the terminal acquires the measurement result, and selects a target radio bearer according to the measurement result, where the first protocol layer of the terminal transmits on the target radio bearer Service data, the second protocol layer is an RRC layer or a MAC layer.
  • the selection of the target radio bearer is performed at the SDAP layer of the access layer protocol stack, and when the DRB is selected as the target radio bearer of the service data, the service data is sequentially passed through the PDCP layer, the RLC layer, and the MAC through the protocol stack corresponding to the Uu interface in the NR. After the layer and the physical layer are processed, the Uu interface is sent out; when the selected target radio bearer is SLRB, the service data is processed by the NR-V2X Sidelink protocol stack through the PDCP layer, the RLC layer, the MAC layer, and the physical layer.
  • the PC5 port sends out; correspondingly, when DRB and SLRB are simultaneously selected as the target radio bearers for service data transmission, the service data is simultaneously passed through the PDCP layer, the RLC layer, the MAC layer, and the physical layer through the protocol stack of the NR and NR-V2X Sidelink. After the corresponding processing, the layer is sent out through the Uu port and the PC5 port.
  • the selection of the target radio bearer may also be performed in the RRC layer, the PDCP layer, the RLC layer, and the MAC layer, which is not limited herein.
  • the terminal acquires radio bearer configuration information from the network device, the following four modes are included:
  • the terminal acquires radio bearer configuration information sent by the network device by using RRC signaling.
  • Manner 2 The terminal acquires radio bearer configuration information sent by the network device by using a field in a header of the SDAP PDU.
  • Manner 3 The terminal acquires radio bearer configuration information sent by the network device by using MAC CE signaling.
  • Manner 4 The terminal acquires radio bearer configuration information sent by the network device by using the DCI.
  • the above method is applied to the NR system as an example for illustration.
  • the concept of QoS flow in the NR is introduced in the NR-V2X protocol, and the DRB and the SLRB are established for the QoS flow of each V2X on the terminal device side.
  • the upper layer protocol is shown.
  • the layer maps the V2X service data to the QoS flow and forwards it to the access layer together with the relevant parameters;
  • the SDAP layer of the access layer maps the QoS Flow to the DRB or/and the SLRB; and configures the DRB and the QoS Flow on the terminal device side.
  • SLRB; the service data corresponding to the DRB is transmitted through the Uu port, and the service data corresponding to the SLRB is transmitted through the PC5 port.
  • the DRB and the SLRB are established for each V2X QoS flow.
  • the terminal device selects the target radio bearer to transmit the service data according to the service characteristic configuration information and the service characteristic of the service data.
  • Step 50 The terminal device acquires configuration information, where the configuration information includes a first flow identifier and configuration information of the DRB corresponding to the first flow identifier and configuration information of the SLRB.
  • Step 51 The terminal device obtains the service feature configuration information, where the service feature configuration information includes the first service feature and the target radio bearer configuration information corresponding to the first service feature.
  • the first service feature includes at least one of a priority, a service type, a source identifier, a destination identifier, a delay, a reliability, and a speed. If the first service feature is a priority, the service feature configuration information is a different priority. Target radio bearer configuration information.
  • Step 52 The terminal device acquires the second flow identifier corresponding to the service data and the service data, and the second service feature corresponding to the service data.
  • Step 53 When the first flow identifier and the second flow identifier are the same, the terminal device selects the data radio bearer and the direct link radio bearer according to the second service characteristic and the service characteristic configuration information. At least one of the targets is a radio bearer.
  • the terminal device determines the target radio bearer configuration information corresponding to the second service feature according to the priority corresponding to the second service feature, and the service feature configuration information, and selects the data radio bearer and the direct connection according to the target radio bearer configuration information. At least one of the link radio bearers acts as a target radio bearer.
  • Step 54 The terminal device sends the service data on the selected target radio bearer.
  • the selection of the target radio bearer is performed in the SDAP layer of the access layer protocol stack, and when the DRB is selected as the bearer of the service data transmission, the service data is sequentially passed through the PDCP layer, the RLC layer, and the MAC layer through the protocol stack corresponding to the Uu interface in the NR. And the physical layer processing is sent out through the Uu port; when the SLRB is selected as the bearer of the service data transmission, the service data is processed by the PDCP layer, the RLC layer, the MAC layer, and the physical layer through the SF-V2X Sidelink protocol stack, and then processed by the PC5.
  • the port is sent out; correspondingly, when DRB and SLRB are simultaneously selected as bearers for service data transmission, the service data is simultaneously passed through the PDCP layer, the RLC layer, the MAC layer, and the physical layer through the protocol stack of the NR and NR-V2X Sidelink. After processing, it is sent out through Uu port and PC5 port;
  • the selection of the target radio bearer may also be performed in the PDCP layer, the RLC layer, and the MAC layer, which is not limited herein.
  • Step 55 The receiving terminal device aggregates at the access layer or the upper layer when receiving the service data.
  • the access layer when the access layer receives the service data, it is processed by the corresponding protocol stack and then delivered to the upper layer, and the upper layer transmits a Transmission Control Protocol (TCP) protocol.
  • TCP Transmission Control Protocol
  • Repeated packet detection, packet loss, and merging by the stack or a separate upper layer protocol stack; or repeated packet detection, packet loss, and merging of the received packet by the SDAP layer through the corresponding duplicate packet detection and duplicate packet discarding mechanism; or Repeated packet detection, packet loss, and merging by the PDCP layer, the RLC layer, or the MAC layer are not limited herein;
  • the SDAP layer is introduced in the V2X protocol stack, and the DRB and the SLRB are configured on the terminal device side for the QoS flow, and the transmission path or the target radio bearer is selected at the access layer, so that the access layer can be flexibly
  • the transmission path is selected according to the service characteristics of the service data, which reduces the handover delay of the transmission path.
  • the DRB and the SLRB are established for the QoS flow of each V2X on the terminal device side.
  • the terminal device selects the target radio bearer to perform service data according to the preset threshold configuration information, the channel load measurement result, and the signal strength measurement result. transmission.
  • the specific process is as follows.
  • Step 60 The terminal device acquires configuration information, where the configuration information includes a first flow identifier and configuration information of the DRB corresponding to the first flow identifier and configuration information of the SLRB.
  • Step 61 The terminal device acquires the service data and the second flow identifier corresponding to the service data.
  • Step 62 The terminal device acquires preset threshold configuration information, where the preset threshold configuration information includes a CBR threshold and an RSRP threshold.
  • the CBR threshold may include a threshold CBRthres or two thresholds CBRthresmin and CBRthresmax, where CBRthresmin is less than CBRthresmax;
  • the RSRP threshold may include a threshold value RSRPthres, or two threshold values RSRPthresmin and RSRPthresmax, where RSRPthresmin is less than RSRPthresmax;
  • the preset threshold configuration information may be in the form of:
  • Step 63 The terminal device acquires CBR and RSRP measurement results.
  • the terminal device obtains the CBR and the RSRP measurement result
  • the terminal device obtains the CBR and the RSRP measurement result by using the measurement, or the terminal device obtains the CBR and the RSRP measurement result from the base station, and the obtaining manner is not limited herein.
  • the CBR and the RSRP measurement result of the terminal device may be performed by the RRC layer or the MAC layer of the terminal device, or may be performed by the SDAP layer, the PDCP layer, or the RLC layer of the terminal device, which is not limited herein;
  • the corresponding protocol layer obtains the measurement result and submits it to the decision protocol layer of the terminal device.
  • the decision protocol layer of the terminal device may be the SDAP layer, the PDCP layer, the RLC layer, the MAC layer, or even the RRC layer or the physical layer, and is not specifically limited herein.
  • the CBR is measured for the PC5 port
  • the RSRP is measured for the Uu port.
  • Step 63 When the first flow identifier and the second flow identifier are the same, the terminal device selects at least one of the DRB and the SLRB as the target radio bearer according to the CBR and RSRP measurement result, the CBR threshold, and the RSRP threshold.
  • the decision protocol layer of the terminal device selects the target radio bearer according to the CBR and RSRP measurement results and the preset threshold configuration information (including the CBR threshold and the RSRP threshold) and the transmission path selection criterion.
  • Steps 64 to 65 refer to steps 54 to 55 of the embodiment.
  • the terminal device selects the target radio bearer to perform service data transmission according to the CBR threshold and the RSRP threshold and the CBR and RSRP measurement results in the preset threshold configuration information, so that the terminal can effectively transmit the service data according to the PC5 interface.
  • the channel load condition or the wireless signal strength of the Uu interface selects an appropriate transmission path or a target radio bearer, which can balance the channel load and ensure that performance indicators such as delay and reliability of the service are guaranteed.
  • the DRB and the SLRB are established for the QoS flow of each V2X on the terminal device side.
  • the terminal device selects the target radio bearer to transmit the service data according to the target radio bearer configuration information acquired from the network device.
  • the specific process is as follows.
  • Step 70 The terminal device acquires configuration information, where the configuration information includes a first flow identifier and configuration information of the DRB corresponding to the first flow identifier and configuration information of the SLRB.
  • Step 71 The terminal device acquires the service data and the second flow identifier corresponding to the service data.
  • Step 72 The terminal device performs CBR and RSRP measurement, and reports the CBR and RSRP measurement results to the network device.
  • the terminal device measures the CBR and the RSRP, and reports the CBR and the RSRP measurement result to the network device, including:
  • the terminal device measures CBR and RSRP, and periodically reports the CBR and RSRP measurement results to the network device; or
  • the terminal device obtains the measurement result report configuration information, and the measurement result report configuration information may include CBR report configuration information (CBRthresrpt) CBRthresrpt and RSRP report configuration information (RSRPthresrpt); and report the CBR and RSRP measurement results to the configuration result according to the measurement result.
  • CBRthresrpt CBRthresrpt
  • RSRPthresrpt RSRP report configuration information
  • Step 73 The network device selects the target radio bearer according to the CBR and RSRP measurement results and the transmission path selection criterion.
  • the network device may also select a target radio bearer according to service characteristics of the service data, or
  • the terminal device selects the target radio bearer according to the CBR and the RSRP measurement result and the service characteristic of the service data, and reports the selected target radio bearer to the network device.
  • Step 74 The terminal device acquires target radio bearer configuration information sent by the network device.
  • the network device indicates the corresponding target radio bearer through a field in the SDAP PDU header; or indicates the target radio bearer by using a MAC CE, an RRC dedicated signaling, a DCI, or the like.
  • Step 75 When the first flow identifier and the second flow identifier are the same, the terminal device selects a corresponding target radio bearer according to the target radio bearer configuration information sent by the network device, where the target radio bearer may be selected by the SDAP layer of the terminal device.
  • the PDCP layer, the RLC layer, the MAC layer, and the like may be implemented, and are not limited herein.
  • Steps 76 to 77 can refer to steps 55 to 56 in the first embodiment.
  • the network device selects the transmission path/target radio bearer through the target radio bearer based on the service characteristic requirement of the service data or the CBR and RSRP measurement result reported by the terminal device, or the target radio bearer reported by the terminal device.
  • the configuration information is indicated to the terminal device.
  • the terminal device acquires the target radio bearer configuration information, and selects the corresponding transmission path/target radio bearer to transmit the service data, so that the path device or the target radio bearer selection of the terminal device not having the measurement function is also based on the channel load, the received signal strength, The selection of service characteristics, etc., thereby reducing the transmission delay of service data.
  • the default transport bearer or transmission path needs to be set.
  • the terminal device selects the transmission path or transmission bearer with the lowest channel load and the strongest received signal strength as the default transmission path or transmission bearer based on the CBR and RSRP measurement results.
  • the terminal device selects the last used transmission path or transport bearer as the default transmission path.
  • the terminal device selects a default transmission path or transmission bearer according to the service type, and needs to bind the service type to the transmission path or the transmission bearer.
  • Terminal device settings Select SRB as the default transmission path or transport bearer.
  • a data transmission device 500 includes: a processing unit 501, The receiving unit 502 and the transmitting unit 503.
  • the processing unit 501 is configured to obtain configuration information, where the configuration information includes a first flow identifier, configuration information of the data radio bearer corresponding to the first flow identifier, and configuration information of the direct link radio bearer.
  • the receiving unit 502 is configured to acquire service data and a second flow identifier corresponding to the service data.
  • the processing unit 501 is further configured to select, according to the first flow identifier, the second flow identifier, configuration information of a data radio bearer corresponding to the first flow identifier, and configuration information of a radio link of a direct link, selecting a corresponding data wireless. Carrying at least one of a bearer and a direct link radio bearer as a target radio bearer;
  • the sending unit 503 is configured to transmit the service data on the target radio bearer.
  • processing unit 501 is specifically configured to:
  • the processing unit 501 is configured to: obtain preset threshold configuration information, where the preset threshold configuration information includes at least one of a first preset threshold and a second preset threshold, according to the measurement result and the The preset threshold configuration information selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer, where the first preset threshold includes at least one channel load preset threshold; the second pre- Setting a threshold to include at least one signal strength preset threshold; the measurement result including at least one of a channel load measurement result and a signal strength measurement result; or
  • the processing unit 501 is specifically configured to: select at least one of the data radio bearer and the direct link radio bearer according to the service characteristic configuration information and the service characteristic of the service data Target radio bearer; or
  • target radio bearer configuration information from the network device, and selecting at least one of the data radio bearer and the direct link radio bearer as the target radio bearer according to the target radio bearer configuration information.
  • processing unit 501 is specifically configured to:
  • At least one of the path radio bearers acts as a target radio bearer.
  • the processing unit 501 is specifically configured to: obtain service characteristic configuration information, where the service feature configuration information includes a first service feature and target radio bearer configuration information corresponding to the first service feature; and acquiring the service data. Corresponding second service characteristic; selecting at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the second service characteristic and the service characteristic configuration information;
  • the service feature includes at least one of a priority, a service type, a source identifier, a destination identifier, a delay, a reliability, and a speed.
  • processing unit 501 is specifically configured to:
  • the measurement result selecting at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the measurement result and the preset threshold configuration information, by using the sending unit 503 And the selected target radio bearer or target radio bearer configuration information is reported to the network device, and the target radio bearer configuration information is obtained from the network device by using the receiving unit 502, and the selected radio bearer configuration information is selected according to the target radio bearer configuration information.
  • At least one of the data radio bearer and the direct link radio bearer is referred to as a target radio bearer.
  • the processing unit 501 acquires the target radio bearer configuration information from the network device, specifically:
  • the processing unit 501 selects at least one of the data radio bearer and the direct link radio bearer as the target radio bearer, specifically:
  • the first protocol layer is an SDAP layer; or the first protocol layer is one of an RRC layer, a packet data convergence protocol PDCP layer, a radio connection control RLC layer, and a MAC layer; the second protocol layer is an RRC layer or The MAC layer, or the second protocol layer, is one of a SDAP layer, a PDCP layer, an RCL layer, and a physical PHY layer.
  • the at least one channel load preset threshold includes: a first channel load preset threshold; or the at least one channel load preset threshold includes a first channel load preset threshold and a second channel load preset threshold ;
  • the at least one signal strength preset threshold includes a first signal strength preset threshold
  • the at least one signal strength preset threshold includes a first signal strength preset threshold and a second preset signal strength preset threshold.
  • processing unit 501 is specifically configured to:
  • the radio bearer is the target radio bearer
  • the direct link radio bearer is the target radio bearer
  • the radio bearer is the target radio bearer
  • the direct link radio bearer is referred to as a target radio bearer.
  • each unit above is only a division of logical functions, and the actual implementation may be integrated into one physical entity in whole or in part, or may be physically separated.
  • these units may all be implemented in the form of software by means of processing component calls; or may be implemented entirely in hardware; some units may be implemented in software in the form of processing component calls, and some units may be implemented in hardware.
  • the processing unit may be a separately set processing element, or may be integrated in a certain chip. Alternatively, it may be stored in a memory in the form of a program, and a function of the unit is called and executed by a certain processing element.
  • the implementation of other units is similar. In addition, all or part of these units can be integrated or implemented independently.
  • each step of the above method or each of the above units may be completed by an integrated logic circuit of hardware in the processor element or an instruction in a form of software.
  • the above receiving unit is a unit for controlling reception, and can receive information through a receiving device of a terminal device or a network device, such as an antenna and a radio frequency device.
  • the above sending unit is a unit for controlling transmission, and can transmit information through a transmitting device of a terminal device or a network device, such as an antenna and a radio frequency device.
  • the above units may be one or more integrated circuits configured to implement the above methods, such as one or more application specific integrated circuits (ASICs), or one or more digital signal processors ( Digital signal processor (DSP), or one or more field programmable gate arrays (FPGAs), and the like.
  • ASICs application specific integrated circuits
  • DSP Digital signal processor
  • FPGAs field programmable gate arrays
  • the processing element can be a general purpose processor, such as a central processing unit (CPU) or other processor that can invoke the program.
  • CPU central processing unit
  • these units can be integrated and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • the present application further provides a terminal device for implementing the method shown in FIG. 3.
  • the terminal device 600 includes: a receiver 601, a processor 602, a memory 603, and Transmitter 604.
  • the memory 603 is configured to store computer executable instructions; when the processor 802 executes the computer executable instructions, causes the terminal device 600 to perform the method illustrated in FIG. 3 above.
  • the data transmission device in the above embodiment shown in FIG. 5 can be implemented by the terminal device 600 shown in FIG. 6.
  • the structure of the terminal device 600 does not constitute a limitation on the embodiments of the present application.
  • the processor 602 can be a central processing unit (CPU), a network processor (NP), a hardware chip, or any combination thereof.
  • the memory may include a volatile memory such as a random access memory (RAM); the memory may also include a non-volatile memory such as a read-only memory. , ROM), flash memory, hard disk drive (HDD) or solid-state drive (SSD); the memory may also include a combination of the above types of memory.
  • embodiments of the present application can be provided as a method, system, or computer program product. Therefore, the embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Moreover, embodiments of the present application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

A data transmission method and apparatus, the method comprising: a terminal device acquires configuration information, the configuration information comprising a first flow identifier and configuration information of a data radio bearer and configuration information of a direct link radio bearer corresponding to the first flow identifier; acquiring service data and a second flow identifier corresponding to the service data; on the basis of the first flow identifier, the second flow identifier, and the configuration information of the data radio bearer and the configuration information of the direct link radio bearer corresponding to the first flow identifier, selecting at least one of the corresponding data radio bearer and the direct link radio bearer as a target radio bearer; and transmitting the service data over the target radio bearer; thus, the terminal device can flexibly select the transmission path according to practical requirements, reducing the latency of data transmission.

Description

一种数据传输方法和装置Data transmission method and device
本申请要求于2018年04月11日提交中国专利局、申请号为201810320075.6、发明名称为“一种数据传输方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。The present application claims priority to Chinese Patent Application No. 201810320075.6, entitled "A Data Transmission Method and Apparatus", filed on Apr. 11, 2018, the entire disclosure of which is incorporated herein by reference. .
技术领域Technical field
本申请涉及车联网技术领域，尤其涉及一种数据传输方法和装置。The present application relates to the field of vehicle networking technologies, and in particular, to a data transmission method and apparatus.
背景技术Background technique
车载终端可以通过车辆与车辆之间通信(Vehicle to Vehicle，V2V)、车辆与路边基础设施通信(Vehicle to Infrastructure，V2I)、车辆与行人之间的通信(Vehicle to Pedestrian，V2P)或者车辆与网络通信(Vehicle to Network，V2N)等通信技术来及时获取路况信息或接收信息服务，这些通信方式可以统称为V2X通信。Vehicle-mounted terminals can communicate between Vehicle to Vehicle (V2V), Vehicle to Infrastructure (V2I), Vehicle to Pedestrian (V2P), or Vehicles and Vehicles. Communication technologies such as Voice to Network (V2N) can acquire road condition information or receive information services in time. These communication methods can be collectively referred to as V2X communication.
由于V2X通信是在终端直连(Device to Device，D2D)技术上演进而来，因此可以通过Sidelink通信技术来传输V2X业务。其中，车辆与周围终端通过直连链路(Sideline)通信的接口可以称为PC5接口。此外，车辆可以通过将信息传给基站再由基站转发给其他车辆来实现车联网通信，这种车辆与基站之间的接口可以称为Uu接口。Since V2X communication evolves on Device to Device (D2D) technology, V2X services can be transmitted through the Sidelink communication technology. The interface that the vehicle communicates with the surrounding terminals through the direct connection (Sideline) may be referred to as a PC5 interface. In addition, the vehicle can implement the vehicle networking communication by transmitting information to the base station and then forwarding the base station to other vehicles. The interface between the vehicle and the base station can be referred to as a Uu interface.
V2X业务可以通过Uu接口发送，经LTE上行链路和基站(以及核心网)转发，最后发送至对端UE；或通过PC5接口发送，经V2X Sidelink(直连链路)直接发送至对端UE。The V2X service can be sent through the Uu interface, forwarded by the LTE uplink and the base station (and the core network), and finally sent to the peer UE; or sent through the PC5 interface, and directly sent to the peer UE via the V2X Sidelink (direct link). .
现有技术方案中，V2X业务的传输路径选择由终端的上层(Upper Layer)，可以是适配层或应用层决定，上层根据业务的服务质量(Quality of Service，QoS)需求或/和业务类型选择传输路径，进行业务传输。In the prior art solution, the transmission path of the V2X service is selected by the upper layer of the terminal, which may be determined by the adaptation layer or the application layer, and the upper layer is determined according to the quality of service (QoS) requirements of the service or/and the service type. Select the transmission path for service transmission.
但是，终端的上层进行路径选择时，不能及时根据信道测量结果进行路径动态切换，且会带来潜在的大时延，不能满足V2X业务高可靠低时延的性能需求。However, when the upper layer of the terminal performs the path selection, the path cannot be dynamically switched according to the channel measurement result, and the potential delay is large, which cannot meet the performance requirement of the V2X service with high reliability and low delay.
发明内容Summary of the invention
本申请实施例提供一种数据传输方法和装置，以解决现有的V2X业务的传输时由终端上层选择传输路径带来的时延较大的问题。The embodiment of the present invention provides a data transmission method and device, which solves the problem that a delay caused by selecting a transmission path by an upper layer of a terminal during transmission of an existing V2X service is large.
本申请实施例提供的具体技术方案如下：The specific technical solutions provided by the embodiments of the present application are as follows:
第一方面，本申请实施例提供一种数据传输方法，包括：终端设备获取配置信息，所述配置信息包括第一流标识以及所述第一流标识对应的数据无线承载的配置信息和直连链路无线承载的配置信息；所述终端设备获取业务数据和所述业务数据对应的第二流标识；所述终端设备根据所述第一流标识、所述第二流标识、所述第一流标识对应的数据无线承载的配置信息和直连链路无线承载的配置信息选择相应数据无线承载与直连链路无线承载中的至少一个作为目标无线承载；所述终端设备在所述目标无线承载上传输所述业务数据。In a first aspect, the embodiment of the present application provides a data transmission method, including: acquiring, by a terminal device, configuration information, where the configuration information includes a first flow identifier, and configuration information and a direct link of the data radio bearer corresponding to the first flow identifier. The configuration information of the radio bearer; the terminal device acquires the service data and the second stream identifier corresponding to the service data; the terminal device according to the first stream identifier, the second stream identifier, and the first stream identifier The configuration information of the data radio bearer and the configuration information of the direct link radio bearer select at least one of the corresponding data radio bearer and the direct link radio bearer as the target radio bearer; the terminal device transmits on the target radio bearer Business data.
通过上述数据传输方法，终端设备能够在接入层灵活选择业务数据的传输路径，减少了传输路径的切换时延，并且能够灵活的平衡信道负载。Through the above data transmission method, the terminal device can flexibly select the transmission path of the service data in the access layer, reduce the handover delay of the transmission path, and flexibly balance the channel load.
一种可能的设计中，所述终端设备根据所述第一流标识、所述第二流标识、所述第一流标识对应的数据无线承载的配置信息和直连链路无线承载的配置信息选择相应数据无线承载与直连链路无线承载中的至少一个作为目标无线承载，包括：当所述第二流标识与所述第一流标识相同时，所述终端设备选择所述数据无线承载与所述直连链路无线承载中的至少一个作为目标无线承载。In a possible design, the terminal device selects according to the first flow identifier, the second flow identifier, the configuration information of the data radio bearer corresponding to the first flow identifier, and the configuration information of the radio link of the direct link. At least one of the data radio bearer and the direct link radio bearer as the target radio bearer, including: when the second stream identifier is the same as the first stream identifier, the terminal device selects the data radio bearer and the At least one of the direct link radio bearers acts as a target radio bearer.
一种可能的设计中，所述终端设备选择所述数据无线承载与所述直连链路无线承载中的至少一个作为目标无线承载，包括以下三种方案：In a possible design, the terminal device selects at least one of the data radio bearer and the direct link radio bearer as the target radio bearer, and includes the following three schemes:
方案一，所述终端设备获取预设门限配置信息，所述预设门限配置信息包括第一预设门限与第二预设门限中的至少一个，所述终端设备根据测量结果和所述预设门限配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，所述第一预设门限包括至少一个信道负载预设门限；所述第二预设门限包括至少一个信号强度预设门限；所述测量结果包括信道负载测量结果和信号强度测量结果中的至少一个。In the first embodiment, the terminal device acquires preset threshold configuration information, where the preset threshold configuration information includes at least one of a first preset threshold and a second preset threshold, and the terminal device determines the preset result according to the measurement result and the preset The threshold configuration information selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer, where the first preset threshold includes at least one channel load preset threshold; the second preset threshold At least one signal strength preset threshold is included; the measurement result includes at least one of a channel load measurement result and a signal strength measurement result.
上述方案一中，终端设备根据测量结果和预设门限配置信息选择传输路径，这样终端设备可以根据信道负载情况或信号强度选择合适的传输路径，减少业务数据的传输时延。In the foregoing solution 1, the terminal device selects a transmission path according to the measurement result and the preset threshold configuration information, so that the terminal device can select an appropriate transmission path according to the channel load condition or the signal strength, and reduce the transmission delay of the service data.
方案二：所述终端设备获取业务特性配置信息，所述终端设备根据所述业务特性配置信息和所述业务数据的业务特性选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Solution 2: The terminal device acquires service characteristic configuration information, and the terminal device selects at least the data radio bearer and the direct link radio bearer according to the service characteristic configuration information and the service characteristic of the service data. One as a target radio bearer.
上述方案二中，终端设备根据业务数据的业务特性来选择传输数据，能够满足不同业务数据的不同服务需求。In the foregoing solution 2, the terminal device selects the transmission data according to the service characteristics of the service data, and can meet different service requirements of different service data.
方案三：所述终端设备从网络设备获取目标无线承载配置信息，所述终端设备根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Solution 3: The terminal device acquires target radio bearer configuration information from a network device, and the terminal device selects at least one of the data radio bearer and the direct link radio bearer as a target according to the target radio bearer configuration information. Wireless bearer.
上述方案三中，终端设备根据网络设备的指示来选择传输路径，能够使不具备测量功能的终端设备实现传输路径在接入层的灵活选择。In the foregoing solution 3, the terminal device selects a transmission path according to the indication of the network device, so that the terminal device that does not have the measurement function can implement flexible selection of the transmission path at the access layer.
一种的可能的设计中，上述方案一中，所述终端设备根据测量结果和所述预设门限配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，可以通过以下过程实现：所述终端设备根据所述至少一个信道负载预设门限和所述至少一个信道负载测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或所述终端设备根据所述至少一个信号强度预设门限和所述至少一个信号强度测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或所述终端设备根据所述至少一个信道负载预设门限、所述至少一个信号强度预设门限、所述至少一个信道负载测量结果和所述至少一个信号强度测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。In a possible design, in the foregoing solution 1, the terminal device selects at least one of the data radio bearer and the direct link radio bearer as a target radio according to the measurement result and the preset threshold configuration information. The bearer may be implemented by: the terminal device selecting at least one of the data radio bearer and the direct link radio bearer according to the at least one channel load preset threshold and the at least one channel load measurement result. Or as the target radio bearer; or the terminal device selects at least one of the data radio bearer and the direct link radio bearer as a target according to the at least one signal strength preset threshold and the at least one signal strength measurement result Radio bearer; or the terminal device selects the data according to the at least one channel load preset threshold, the at least one signal strength preset threshold, the at least one channel load measurement result, and the at least one signal strength measurement result At least one of a radio bearer and the direct link radio bearer is targeted Radio bearer.
一种可能的设计中，上述方案二中，所述终端设备获取业务特性配置信息，所述终端设备根据所述业务特性配置信息和所述业务数据的业务特性选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，可以通过以下过程实现：In a possible design, in the foregoing solution, the terminal device acquires service characteristic configuration information, and the terminal device selects the data radio bearer according to the service characteristic configuration information and the service characteristic of the service data, and the At least one of the direct link radio bearers is used as the target radio bearer, and can be implemented by the following process:
所述终端设备获取业务特性配置信息，所述业务特性配置信息包括第一业务特性 和所述第一业务特性对应的目标无线承载配置信息；所述终端设备获取所述业务数据对应的第二业务特性；所述终端设备根据所述第二业务特性和所述业务特性配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；其中，业务特性包括优先级、业务类型、源标识、目的标识、时延、可靠性、速度中的至少一个。The terminal device acquires service characteristic configuration information, where the service feature configuration information includes a first service feature and target radio bearer configuration information corresponding to the first service feature, and the terminal device acquires a second service corresponding to the service data. Determining, by the terminal device, at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the second service characteristic and the service characteristic configuration information; wherein, the service feature includes priority At least one of a level, a service type, a source identifier, a destination identifier, a delay, a reliability, and a speed.
一种可能的设计中，上述方案三中，所述终端设备从网络设备获取目标无线承载配置信息，所述终端设备根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，可以通过以下方式实现：In a possible design, in the foregoing solution, the terminal device acquires target radio bearer configuration information from the network device, and the terminal device selects the data radio bearer and the direct link according to the target radio bearer configuration information. At least one of the radio bearers is used as the target radio bearer, and can be implemented in the following manner:
方式一：所述终端设备获取所述测量结果，将所述测量结果上报给所述网络设备，并从所述网络设备获取目标无线承载配置信息，所述终端设备根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Manner 1: The terminal device acquires the measurement result, reports the measurement result to the network device, and acquires target radio bearer configuration information from the network device, where the terminal device performs configuration information according to the target radio bearer. At least one of the data radio bearer and the direct link radio bearer is selected as the target radio bearer.
上述方式一种，网络设备基于信道负载或信号强度的测量结果选择传输路径，并配置给终端设备，使终端设备对传输路径的选择也是基于测量结果进行选择的，从而平衡信道负载。In the foregoing manner, the network device selects a transmission path based on the measurement result of the channel load or the signal strength, and configures the transmission path to the terminal device, so that the selection of the transmission path by the terminal device is also selected based on the measurement result, thereby balancing the channel load.
方式二：所述终端设备获取所述测量结果，根据所述测量结果和所述预设门限配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，将所述选择的目标无线承载或目标无线承载配置信息上报给所述网络设备，并从所述网络设备获取所述目标无线承载配置信息，所述终端设备根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Manner 2: The terminal device acquires the measurement result, and selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the measurement result and the preset threshold configuration information. And the selected target radio bearer or the target radio bearer configuration information is reported to the network device, and the target radio bearer configuration information is obtained from the network device, where the terminal device selects the location according to the target radio bearer configuration information. At least one of the data radio bearer and the direct link radio bearer is referred to as a target radio bearer.
方式二中，终端设备基于信道负载或信号强度的测量结果选择传输路径，并上报给网络设备，网络设备通过目标无线承载配置信息配置给终端需要传输业务数据的目标无线承载。In the second mode, the terminal device selects the transmission path based on the measurement result of the channel load or the signal strength, and reports the transmission path to the network device. The network device configures the target radio bearer to transmit the service data to the terminal through the target radio bearer configuration information.
一种可能的设计中，所述终端设备从网络设备获取目标无线承载配置信息，包括以下情形：In a possible design, the terminal device acquires target radio bearer configuration information from the network device, including the following situations:
情形一，所述终端设备通过无线资源控制RRC信令获取所述网络设备发送的目标无线承载配置信息。In the first case, the terminal device acquires target radio bearer configuration information sent by the network device by using radio resource control RRC signaling.
情形二：所述终端设备通过服务数据适配协议SDAP协议数据单元PDU头中的字段获取所述网络设备发送的目标无线承载配置信息。Case 2: The terminal device acquires target radio bearer configuration information sent by the network device by using a field in a service data adaptation protocol (SDAP) data unit PDU header.
情形三：所述终端设备通过媒体介入控制控制元素MAC CE信令获取所述网络设备发送的目标无线承载配置信息。Case 3: The terminal device acquires target radio bearer configuration information sent by the network device by using a media intervention control element MAC CE signaling.
情形四：所述终端设备通过下行控制信息DCI获取所述网络设备发送的目标无线承载配置信息。Case 4: The terminal device acquires target radio bearer configuration information sent by the network device by using downlink control information DCI.
一种可能的设计中，所述终端设备选择所述数据无线承载与所述直连链路无线承载中的至少一个作为目标无线承载，包括：所述终端设备的第一协议层获取所述测量结果，并根据所述测量结果选择目标无线承载，所述终端设备的第一协议层在所述目标无线承载上传输业务数据；或所述终端设备的第二协议层获取所述测量结果，并根据所述测量结果选择目标无线承载，所述终端设备的第一协议层在所述目标无线承载上传输业务数据，其中,所述第一协议层是SDAP层；或所述第一协议层是RRC层、 PDCP层、RLC层和MAC层中的一个；所述第二协议层是RRC层或MAC层，或所述第二协议层是SDAP层、PDCP层、RCL层和PHY层的一个。In a possible design, the terminal device selects at least one of the data radio bearer and the direct link radio bearer as the target radio bearer, including: the first protocol layer of the terminal device acquires the measurement a result, and selecting a target radio bearer according to the measurement result, where the first protocol layer of the terminal device transmits service data on the target radio bearer; or the second protocol layer of the terminal device acquires the measurement result, and Selecting a target radio bearer according to the measurement result, where the first protocol layer of the terminal device transmits service data on the target radio bearer, where the first protocol layer is a SDAP layer; or the first protocol layer is One of an RRC layer, a PDCP layer, an RLC layer, and a MAC layer; the second protocol layer is an RRC layer or a MAC layer, or the second protocol layer is one of a SDAP layer, a PDCP layer, an RCL layer, and a PHY layer.
一种可能的设计中，所述至少一个信道负载预设门限，包括：第一信道负载预设门限；或所述至少一个信道负载预设门限包括第一信道负载预设门限和第二信道负载预设门限；所述至少一个信号强度预设门限包括第一信号强度预设门限；或所述至少一个信号强度预设门限包括第一信号强度预设门限和第二预设信号强度预设门限。In a possible design, the at least one channel load preset threshold includes: a first channel load preset threshold; or the at least one channel load preset threshold includes a first channel load preset threshold and a second channel load a preset threshold; the at least one signal strength preset threshold includes a first signal strength preset threshold; or the at least one signal strength preset threshold includes a first signal strength preset threshold and a second preset signal strength preset threshold .
一种可能的设计中，所述终端设备根据所述至少一个信道负载预设门限、所述至少一个信号强度预设门限、所述至少一个信道负载测量结果和所述至少一个信号强度测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，包括：In a possible design, the terminal device selects according to the at least one channel load preset threshold, the at least one signal strength preset threshold, the at least one channel load measurement result, and the at least one signal strength measurement result. At least one of the data radio bearer and the direct link radio bearer is used as the target radio bearer, including:
当所述信道负载测量结果大于或大于等于所述第一信道负载预设门限且/或所述信号强度测量结果大于或大于等于所述第一信号强度预设门限时，所述终端设备选择所述数据无线承载作为目标无线承载；或When the channel load measurement result is greater than or equal to the first channel load preset threshold and/or the signal strength measurement result is greater than or equal to the first signal strength preset threshold, the terminal device selects Determining the data radio bearer as the target radio bearer; or
当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且/或所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，所述终端设备选择所述直连链路无线承载作为目标无线承载；或When the channel load measurement result is less than or equal to the first channel load preset threshold and/or the signal strength measurement result is less than or equal to the first signal strength preset threshold, the terminal device selects Determining the direct link radio bearer as the target radio bearer; or
当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且所述信号强度测量结果大于或大于等于所述第一信号强度预设门限时，所述终端设备选择所述数据无线承载或所述直连链路无线承载作为目标无线承载；或The terminal device selects the data when the channel load measurement result is less than or equal to the first channel load preset threshold and the signal strength measurement result is greater than or equal to the first signal strength preset threshold. a radio bearer or the direct link radio bearer as a target radio bearer; or
当所述负载测量结果大于或大于等于所述第一信道负载预设门限且所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，选择所述数据无线承载和所述直连链路无线承载作为目标无线承载；或Selecting the data radio bearer and the data when the load measurement result is greater than or equal to the first channel load preset threshold and the signal strength measurement result is less than or less than the first signal strength preset threshold. Directly connecting the link radio bearer as the target radio bearer; or
当所述信道负载测量结果大于或大于等于所述第二信道负载预设门限且/或所述信号强度测量结果大于或大于等于所述第二信号强度预设门限时，所述终端设备选择所述数据无线承载作为目标无线承载；或When the channel load measurement result is greater than or equal to the second channel load preset threshold and/or the signal strength measurement result is greater than or equal to the second signal strength preset threshold, the terminal device selects Determining the data radio bearer as the target radio bearer; or
当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且/或所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，所述终端设备选择所述直连链路无线承载作为目标无线承载；或When the channel load measurement result is less than or equal to the first channel load preset threshold and/or the signal strength measurement result is less than or equal to the first signal strength preset threshold, the terminal device selects Determining the direct link radio bearer as the target radio bearer; or
当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且所述信号强度测量结果大于或大于等于所述信号强度第二预设门限时，所述终端设备选择所述数据无线承载或所述直连链路无线承载作为目标无线承载；或The terminal device selects the data when the channel load measurement result is less than or equal to the first channel load preset threshold and the signal strength measurement result is greater than or equal to the signal strength second preset threshold. a radio bearer or the direct link radio bearer as a target radio bearer; or
当所述信道负载测量结果大于或大于等于所述第二信道负载预设门限且所述信号强度测量结果小于或小于等于所述信号强度第一预设门限时，所述终端设备选择所述数据无线承载和所述直连链路无线承载作为目标无线承载。The terminal device selects the data when the channel load measurement result is greater than or equal to the second channel load preset threshold and the signal strength measurement result is less than or equal to the signal strength first preset threshold. The radio bearer and the direct link radio bearer are the target radio bearers.
上述设计中，终端设备可以基于信道负载测量结果进行传输路径的选择，这样能够平衡信道负载；也可以基于信号强度测量结果进行传输路径的选择，保证业务数据的可靠性指标；还可以综合信道负载测量结果和信号强度测量结果来进行传输路径的选择，确保业务数据的服务质量指标得到保障。In the above design, the terminal device can select the transmission path based on the channel load measurement result, so that the channel load can be balanced; the transmission path can be selected based on the signal strength measurement result to ensure the reliability index of the service data; and the channel load can also be integrated. The measurement results and signal strength measurement results are used to select the transmission path to ensure that the service quality indicators of the service data are guaranteed.
第二方面，本申请实施例提供一种数据传输装置，应用于终端设备，包括：In a second aspect, the embodiment of the present application provides a data transmission apparatus, which is applied to a terminal device, and includes:
处理单元，用于获取配置信息，所述配置信息包括第一流标识以及所述第一流标 识对应的数据无线承载的配置信息和直连链路无线承载的配置信息；接收单元，用于获取业务数据和所述业务数据对应的第二流标识；所述处理单元，还用于根据所述第一流标识、所述第二流标识、所述第一流标识对应的数据无线承载的配置信息和直连链路无线承载的配置信息选择相应数据无线承载与直连链路无线承载中的至少一个作为目标无线承载；发送单元，用于在所述目标无线承载上传输所述业务数据。a processing unit, configured to acquire configuration information, where the configuration information includes a first flow identifier, configuration information of a data radio bearer corresponding to the first flow identifier, and configuration information of a radio link of a direct link; and a receiving unit, configured to acquire service data a second stream identifier corresponding to the service data; the processing unit is further configured to: according to the first stream identifier, the second stream identifier, the configuration information of the data radio bearer corresponding to the first stream identifier, and the direct connection The configuration information of the link radio bearer selects at least one of the corresponding data radio bearer and the direct link radio bearer as the target radio bearer, and the sending unit is configured to transmit the service data on the target radio bearer.
一种可能的设计中，所述处理单元具体用于：当所述第二流标识与所述第一流标识相同时，选择所述数据无线承载与所述直连链路无线承载中的至少一个作为目标无线承载。In a possible design, the processing unit is specifically configured to: when the second flow identifier is the same as the first flow identifier, select at least one of the data radio bearer and the direct link radio bearer As the target radio bearer.
一种可能的设计中，所述处理单元具体用于：获取预设门限配置信息，所述预设门限配置信息包括第一预设门限与第二预设门限中的至少一个，根据测量结果和所述预设门限配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，所述第一预设门限包括至少一个信道负载预设门限；所述第二预设门限包括至少一个信号强度预设门限；所述测量结果包括信道负载测量结果和信号强度测量结果中的至少一个；或In a possible design, the processing unit is specifically configured to: acquire preset threshold configuration information, where the preset threshold configuration information includes at least one of a first preset threshold and a second preset threshold, according to the measurement result and The preset threshold configuration information selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer, where the first preset threshold includes at least one channel load preset threshold; The second preset threshold includes at least one signal strength preset threshold; the measurement result includes at least one of a channel load measurement result and a signal strength measurement result; or
获取业务特性配置信息，所述处理单元具体用于：根据所述业务特性配置信息和所述业务数据的业务特性选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或Obtaining service characteristic configuration information, where the processing unit is configured to: select at least one of the data radio bearer and the direct link radio bearer as a target according to the service characteristic configuration information and the service characteristic of the service data Wireless bearer; or
从网络设备获取目标无线承载配置信息，根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Obtaining target radio bearer configuration information from the network device, and selecting at least one of the data radio bearer and the direct link radio bearer as the target radio bearer according to the target radio bearer configuration information.
一种可能的设计中，所述处理单元具体用于：In a possible design, the processing unit is specifically configured to:
根据所述至少一个信道负载预设门限和所述至少一个信道负载测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或Selecting at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the at least one channel load preset threshold and the at least one channel load measurement result; or
根据所述至少一个信号强度预设门限和所述至少一个信号强度测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或Selecting at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the at least one signal strength preset threshold and the at least one signal strength measurement result; or
根据所述至少一个信道负载预设门限、所述至少一个信号强度预设门限、所述至少一个信道负载测量结果和所述至少一个信号强度测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Selecting the data radio bearer and the direct link according to the at least one channel load preset threshold, the at least one signal strength preset threshold, the at least one channel load measurement result, and the at least one signal strength measurement result At least one of the path radio bearers acts as a target radio bearer.
一种可能的设计中，所述处理单元具体用于：获取业务特性配置信息，所述业务特性配置信息包括第一业务特性和所述第一业务特性对应的目标无线承载配置信息；获取所述业务数据对应的第二业务特性；根据所述第二业务特性和所述业务特性配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；其中，业务特性包括优先级、业务类型、源标识、目的标识、时延、可靠性、速度中的至少一个。In a possible design, the processing unit is specifically configured to: obtain service characteristic configuration information, where the service feature configuration information includes a first service feature and target radio bearer configuration information corresponding to the first service feature; a second service characteristic corresponding to the service data; selecting at least one of the data radio bearer and the direct link radio bearer as the target radio bearer according to the second service characteristic and the service characteristic configuration information; The feature includes at least one of a priority, a service type, a source identifier, a destination identifier, a delay, a reliability, and a speed.
一种可能的设计中，所述处理单元具体用于：In a possible design, the processing unit is specifically configured to:
获取所述测量结果，通过所述发送单元将所述测量结果上报给所述网络设备，通过所述接收单元从所述网络设备获取目标无线承载配置信息，根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或Acquiring the measurement result, reporting the measurement result to the network device by using the sending unit, acquiring target radio bearer configuration information from the network device by using the receiving unit, and selecting the location according to the target radio bearer configuration information Determining at least one of a data radio bearer and the direct link radio bearer as a target radio bearer; or
获取所述测量结果，根据所述测量结果和所述预设门限配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，通过所述发送单元 将所述选择的目标无线承载或目标无线承载配置信息上报给所述网络设备，通过所述接收单元从所述网络设备获取所述目标无线承载配置信息，根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Acquiring the measurement result, selecting at least one of the data radio bearer and the direct link radio bearer as the target radio bearer according to the measurement result and the preset threshold configuration information, where the sending unit The selected target radio bearer or target radio bearer configuration information is reported to the network device, and the target radio bearer configuration information is obtained from the network device by the receiving unit, and the data is selected according to the target radio bearer configuration information. At least one of a radio bearer and the direct link radio bearer is a target radio bearer.
一种可能的设计中，所述处理单元从网络设备获取目标无线承载配置信息时，具体用于：通过无线资源控制RRC令获取所述网络设备发送的目标无线承载配置信息；或通过服务数据适配协议SDAP协议数据单元PDU头中的字段获取所述网络设备发送的目标无线承载配置信息；或通过媒体介入控制控制元素MAC CE信令获取所述网络设备发送的目标无线承载配置信息；或通过下行控制信息DCI获取所述网络设备发送的目标无线承载配置信息。In a possible design, when the processing unit acquires the target radio bearer configuration information from the network device, the processing unit is configured to: acquire the target radio bearer configuration information sent by the network device by using the radio resource control RRC command; or adopt the service data. The field in the PDU header of the protocol SDAP protocol data unit acquires the target radio bearer configuration information sent by the network device; or obtains the target radio bearer configuration information sent by the network device by using the media intervention control element MAC CE signaling; or The downlink control information DCI acquires target radio bearer configuration information sent by the network device.
一种可能的设计中，所述处理单元选择所述数据无线承载与所述直连链路无线承载中的至少一个作为目标无线承载时，具体用于：通过所述终端设备的第一协议层获取所述测量结果，并根据所述测量结果选择目标无线承载，利用所述终端设备的第一协议层在所述目标无线承载上传输业务数据；或，通过所述终端设备的第二协议层获取所述测量结果，并根据所述测量结果选择目标无线承载，利用所述终端设备的第一协议层在所述目标无线承载上传输业务数据，其中,所述第一协议层是SDAP层；或所述第一协议层是RRC层、PDCP层、RLC层和MAC层中的一个；所述第二协议层是RRC层或MAC层，或所述第二协议层是SDAP层、PDCP层、RCL层和PHY层的一个。In a possible design, when the processing unit selects at least one of the data radio bearer and the direct link radio bearer as the target radio bearer, specifically, the first protocol layer of the terminal device is used. Obtaining the measurement result, and selecting a target radio bearer according to the measurement result, using the first protocol layer of the terminal device to transmit service data on the target radio bearer; or, by using a second protocol layer of the terminal device Obtaining the measurement result, and selecting a target radio bearer according to the measurement result, using the first protocol layer of the terminal device to transmit service data on the target radio bearer, where the first protocol layer is a SDAP layer; Or the first protocol layer is one of an RRC layer, a PDCP layer, an RLC layer, and a MAC layer; the second protocol layer is an RRC layer or a MAC layer, or the second protocol layer is an SDAP layer, a PDCP layer, One of the RCL layer and the PHY layer.
一种可能的设计中，所述至少一个信道负载预设门限，包括：第一信道负载预设门限；或所述至少一个信道负载预设门限包括第一信道负载预设门限和第二信道负载预设门限；所述至少一个信号强度预设门限包括第一信号强度预设门限；或所述至少一个信号强度预设门限包括第一信号强度预设门限和第二预设信号强度预设门限。In a possible design, the at least one channel load preset threshold includes: a first channel load preset threshold; or the at least one channel load preset threshold includes a first channel load preset threshold and a second channel load a preset threshold; the at least one signal strength preset threshold includes a first signal strength preset threshold; or the at least one signal strength preset threshold includes a first signal strength preset threshold and a second preset signal strength preset threshold .
一种可能的设计中，所述处理单元具体用于：In a possible design, the processing unit is specifically configured to:
当所述信道负载测量结果大于或大于等于所述第一信道负载预设门限且/或所述信号强度测量结果大于或大于等于所述第一信号强度预设门限时，选择所述数据无线承载作为目标无线承载；或Selecting the data radio bearer when the channel load measurement result is greater than or equal to the first channel load preset threshold and/or the signal strength measurement result is greater than or equal to the first signal strength preset threshold. As the target radio bearer; or
当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且/或所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，选择所述直连链路无线承载作为目标无线承载；或Selecting the direct link when the channel load measurement result is less than or equal to the first channel load preset threshold and/or the signal strength measurement result is less than or equal to the first signal strength preset threshold The radio bearer is the target radio bearer; or
当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且所述信号强度测量结果大于或大于等于所述第一信号强度预设门限时，所述选择所述数据无线承载或所述直连链路无线承载作为目标无线承载；或Selecting the data radio bearer when the channel load measurement result is less than or equal to the first channel load preset threshold and the signal strength measurement result is greater than or equal to the first signal strength preset threshold. Or the direct link radio bearer is the target radio bearer; or
当所述负载测量结果大于或大于等于所述第一信道负载预设门限且所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，选择所述数据无线承载和所述直连链路无线承载作为目标无线承载；或Selecting the data radio bearer and the data when the load measurement result is greater than or equal to the first channel load preset threshold and the signal strength measurement result is less than or less than the first signal strength preset threshold. Directly connecting the link radio bearer as the target radio bearer; or
当所述信道负载测量结果大于或大于等于所述第二信道负载预设门限且/或所述信号强度测量结果大于或大于等于所述第二信号强度预设门限时，选择所述数据无线承载作为目标无线承载；或Selecting the data radio bearer when the channel load measurement result is greater than or equal to the second channel load preset threshold and/or the signal strength measurement result is greater than or equal to the second signal strength preset threshold. As the target radio bearer; or
当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且/或所述 信号强度测量结果小于或小于等于所述第一信号强度预设门限时，选择所述直连链路无线承载作为目标无线承载；或Selecting the direct link when the channel load measurement result is less than or equal to the first channel load preset threshold and/or the signal strength measurement result is less than or equal to the first signal strength preset threshold The radio bearer is the target radio bearer; or
当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且所述信号强度测量结果大于或大于等于所述信号强度第二预设门限时，选择所述数据无线承载或所述直连链路无线承载作为目标无线承载；或Selecting the data radio bearer or the channel when the channel load measurement result is less than or equal to the first channel load preset threshold and the signal strength measurement result is greater than or equal to the signal strength second preset threshold. Determining the direct link radio bearer as the target radio bearer; or
当所述信道负载测量结果大于或大于等于所述第二信道负载预设门限且所述信号强度测量结果小于或小于等于所述信号强度第一预设门限时，选择所述数据无线承载和所述直连链路无线承载作为目标无线承载。Selecting the data radio bearer and the channel when the channel load measurement result is greater than or equal to the second channel load preset threshold and the signal strength measurement result is less than or equal to the signal strength first preset threshold. The direct link radio bearer is referred to as a target radio bearer.
第三方面，本申请提供了一种终端设备，该终端设备包括用于执行上述第一方面或其任一设计中终端设备所执行的每一方法或动作的单元。该终端设备包括的单元可以通过软件和/或硬件方式实现。In a third aspect, the present application provides a terminal device comprising means for performing each of the methods or actions performed by the terminal device in the first aspect or any of the above designs. The unit included in the terminal device can be implemented by software and/or hardware.
第四方面，本申请提供了一种终端设备。该终端设备包括至少一个处理器和通信接口。所述通信接口可用于所述终端设备与其他设备(比如无线接入网设备和/或其他终端设备)进行通信交互，比如交互控制信令和/或业务数据等，该通信接口可通过具有通信收发功能的电路来实现，该通信接口也可以被设计成两个具有通信收发功能的电路，分别用于该终端设备和无线接入网设备之间的通信交互以及用于该终端设备和其他终端设备之间的通信交互，当程序指令在所述至少一个处理器中执行时，使得实现上述第一方面或其任一设计中在终端设备的功能。可选地，该终端设备还可以包括存储器。该存储器用于存储所需的程序指令和/或数据。可选地，该终端设备可以是交通运输通信***(比如V2X)中的车辆，或者装配于车辆的通信装置或***，或者临时用于车辆与外界通信的通信装置或***。In a fourth aspect, the application provides a terminal device. The terminal device includes at least one processor and a communication interface. The communication interface may be used for communication interaction between the terminal device and other devices, such as a radio access network device and/or other terminal devices, such as interaction control signaling and/or service data, etc., the communication interface may have communication The communication function is implemented by a circuit, and the communication interface can also be designed as two circuits having communication and transceiving functions for communication interaction between the terminal device and the radio access network device, and for the terminal device and other terminals. The communication interaction between the devices, when the program instructions are executed in the at least one processor, enables the functions of the terminal device in the first aspect or any of the designs described above. Optionally, the terminal device may further include a memory. This memory is used to store the required program instructions and/or data. Alternatively, the terminal device may be a vehicle in a transportation communication system (such as V2X), or a communication device or system equipped to the vehicle, or a communication device or system temporarily used to communicate with the outside world.
第五方面，本申请提供了一种计算机可读存储介质，可应用于终端设备。该计算机可读存储介质具有程序代码，当该程序代码被执行时，使得实现如前述第一方面及其任一设计中在终端设备的功能。例如，该计算机可读介质中可以存储用于终端设备执行的程序代码，该程序代码包括用于执行前述第一方面或其任一设计中终端设备的功能的指令。In a fifth aspect, the present application provides a computer readable storage medium applicable to a terminal device. The computer readable storage medium has program code that, when executed, causes the functions of the terminal device as in the first aspect described above and any of its designs. For example, the computer readable medium can store program code for execution by the terminal device, the program code including instructions for performing the functions of the terminal device of the first aspect or any of the designs described above.
第六方面，本申请提供了一种计算机程序产品，可应用于终端设备，该计算机程序产品包含程序指令，当所述程序指令被执行时，使得实现如前述第一方面或其任一设计中在终端设备的功能。例如，该计算机程序产品在终端设备上执行时，使得终端设备执行前述第一方面或其任一设计中终端设备操作。In a sixth aspect, the present application provides a computer program product, applicable to a terminal device, the computer program product comprising program instructions, when the program instructions are executed, to implement the first aspect or any of the designs thereof The function of the terminal device. For example, when the computer program product is executed on the terminal device, the terminal device is caused to perform the terminal device operation in the first aspect or any of the designs described above.
第七方面，本申请提供了一种***芯片，可应用于终端设备，该***芯片包括至少一个处理器，以及输入输出接口，当指令在所述至少一个处理器执行，使得实现如前述第一方面或其任一设计中在终端设备的功能。可选地，该***芯片还可以包括至少一个存储器和总线，该至少一个存储器用于存储处理器执行的指令和或数据。In a seventh aspect, the present application provides a system chip, which is applicable to a terminal device, where the system chip includes at least one processor, and an input/output interface, when the instruction is executed at the at least one processor, so as to implement the first The functionality of the terminal device in either aspect or in any design. Optionally, the system chip may further include at least one memory and a bus for storing instructions and or data executed by the processor.
第八方面、本申请提供了一种通信***，所述通信***包括如第二，第三，第四，第五，第六，以及第七方面中任一所述的实体。In an eighth aspect, the application provides a communication system, the communication system comprising an entity as described in any one of the second, third, fourth, fifth, sixth, and seventh aspects.
附图说明DRAWINGS
图1和图2为本申请中的V2X传输场景示意图；1 and 2 are schematic diagrams of a V2X transmission scenario in the present application;
图3为本申请的业务数据传输方法流程图；3 is a flowchart of a service data transmission method according to the present application;
图4为本申请的业务数据传输路径示意图；4 is a schematic diagram of a service data transmission path of the present application;
图5为本申请的业务数据传输装置结构图；Figure 5 is a structural diagram of a service data transmission apparatus of the present application;
图6为本申请的终端设备结构示意图。FIG. 6 is a schematic structural diagram of a terminal device according to the present application.
具体实施方式detailed description
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清楚、完整地描述。The technical solutions in the embodiments of the present application will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments.
本文中描述的技术可用于各种通信***，例如长期演进(Long Term Evolution，LTE)***，第五代移动通信***(5G)，以及其他此类通信***。The techniques described herein may be used in various communication systems, such as Long Term Evolution (LTE) systems, fifth generation mobile communication systems (5G), and other such communication systems.
以下，对本发明实施例中的部分用语进行解释说明，以便于本领域技术人员理解。Hereinafter, some of the terms in the embodiments of the present invention will be explained to facilitate understanding by those skilled in the art.
(1)终端，是指向用户提供语音和/或数据连通性的设备，例如包括具有无线连接功能的手持式设备、或连接到无线调制解调器的处理设备。该终端可以经无线接入网(Radio Access Network，RAN)与核心网进行通信，与RAN交换语音和/或数据。该终端可以包括车辆、用户设备(User Equipment，UE)、无线终端设备、移动终端设备、订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、接入点(Access Point，AP)、远程终端设备(Remote Terminal)、接入终端设备(Access Terminal)、用户终端设备(User Terminal)、用户代理(User Agent)、或用户装备(User Device)等。例如，可以包括移动电话(或称为“蜂窝”电话)，具有移动终端设备的计算机，窄带物联网(Narrow Band Internet of Things，NB-IoT)中的专用终端设备，便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)等设备。(1) A terminal is a device that provides voice and/or data connectivity to a user, for example, including a handheld device having a wireless connection function, or a processing device connected to a wireless modem. The terminal can communicate with the core network via a Radio Access Network (RAN) to exchange voice and/or data with the RAN. The terminal may include a vehicle, a User Equipment (UE), a wireless terminal device, a mobile terminal device, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile Station, and Remote Station, Access Point (AP), Remote Terminal, Access Terminal, User Terminal, User Agent, or User Equipment, etc. For example, it may include a mobile phone (or "cellular" phone), a computer with a mobile terminal device, a dedicated terminal device in a Narrow Band Internet of Things (NB-IoT), portable, pocket, handheld , a built-in computer or a mobile device on the car. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), etc. .
在本发明实施例中，终端还可以包括V2X设备，例如为车辆中的车载单元(On Broad Unit，OBU)，且下文中主要以终端是V2X设备为例。In the embodiment of the present invention, the terminal may further include a V2X device, such as an On Broad Unit (OBU) in the vehicle, and hereinafter, the terminal is a V2X device as an example.
(2)网络设备，例如包括接入网设备和核心网设备。接入网设备例如包括基站(例如，接入点)，可以是指接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备。基站可用于将收到的空中帧与网际协议(IP)分组进行相互转换，作为终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括IP网络。基站还可协调对空中接口的属性管理。例如，基站可以包括LTE***或演进的LTE***(LTE-Advanced，LTE-A)中的演进型基站(eNB或e-NodeB，evolutional Node B)，或LTE***或LTE-A***中的小基站(micro/pico eNB)，或者也可以包括NR***中的下一代节点B(next generation node B，gNB)，或者是传输点(transmission point，TP)，也可以是收发节点(transmission and receiver point，TRP)，等等，本发明实施例并不限定。(2) Network devices, including, for example, access network devices and core network devices. An access network device, for example, including a base station (e.g., an access point), can refer to a device in the access network that communicates with the wireless terminal over one or more sectors over the air interface. The base station can be used to convert the received air frame to an Internet Protocol (IP) packet as a router between the terminal and the rest of the access network, wherein the remainder of the access network can include an IP network. The base station can also coordinate attribute management of the air interface. For example, the base station may include an evolved base station (eNB or e-NodeB, evolutional Node B) in an LTE system or an evolved LTE system (LTE-A), or a small base station in an LTE system or an LTE-A system (micro/pico eNB), or may include a next generation node B (gNB) in the NR system, or a transmission point (TP), or a transmission and receiver point (transmission and receiver point, TRP), etc., is not limited by the embodiment of the present invention.
核心网设备例如包括移动管理实体(Mobility Management Entity，MME)，或者也可以包括NR***中的相应功能实体。The core network device includes, for example, a Mobility Management Entity (MME), or may also include a corresponding functional entity in the NR system.
(3)V2X，目前，车辆可以通过车辆与车辆之间通信(Vehicle to Vehicle，V2V)或者车辆与路边基础设施通信(Vehicle to Infrastructure，V2I)，或者车辆与行人之间的通信(Vehicle to Pedestrian，V2P)，或者车辆与网络通信(Vehicle to Network，V2N)等方式来及时获取路况信息或接收信息，这些通信方式可以统称为V2X通信。以最常见的V2V和 V2I为例：车辆通过V2V通信，可以将自身的车速、行驶方向、具***置、是否踩了紧急刹车等信息广播给周围车辆，周围车辆通过获取该类信息，使得驾驶员可以更好地感知视距外的交通状况，从而对危险状况作出提前预判，进而作出及时避让。而对于V2I通信，除了上述安全信息的交互外，路边基础设施还可以为车辆提供各类服务信息和数据网络的接入等，不停车收费、车内娱乐等功能都极大地提高了交通智能化。一般将V2X通信所使用的网络称为车联网。(3) V2X, currently, vehicles can communicate by vehicle to vehicle (V2V) or vehicle to road infrastructure (V2I), or communication between vehicles and pedestrians (Vehicle to Pedestrian, V2P), or Vehicle to Network (V2N) to obtain road condition information or receive information in time. These communication methods can be collectively referred to as V2X communication. Take the most common V2V and V2I as an example: the vehicle can communicate with its surrounding vehicles by V2V communication, and its own speed, direction of travel, specific position, emergency brakes, etc., and the surrounding vehicles obtain the information to make the driver It is better to perceive the traffic conditions outside the line of sight, so that the dangerous situation can be pre-judged in advance, and then timely avoidance can be made. For V2I communication, in addition to the above-mentioned interaction of security information, the roadside infrastructure can also provide various types of service information and data network access for vehicles, and functions such as non-stop charging and in-vehicle entertainment greatly improve traffic intelligence. Chemical. The network used by V2X communication is generally referred to as an Internet of Vehicles.
(4)设备到设备(Device to Device，D2D)技术，可以支持终端和终端之间使用专用的空中接口技术进行直接数据通信，是一种端到端的直接通信的技术。与传统的蜂窝通信技术最大的不同在于，在D2D技术支持下，终端与终端之间不需要基站的中转就可以直接进行通信，基站可以进行资源的配置、调度、及协调等，辅助终端之间进行直接通信。D2D技术可以应用于车联网业务。(4) Device to Device (D2D) technology can support direct data communication between terminals and terminals using dedicated air interface technology. It is an end-to-end direct communication technology. The biggest difference from the traditional cellular communication technology is that, with the support of the D2D technology, the terminal and the terminal can directly communicate without requiring the relay of the base station, and the base station can perform resource configuration, scheduling, and coordination, etc., between the auxiliary terminals. Direct communication. D2D technology can be applied to the Internet of Vehicles business.
(5)PC5接口，是在第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)版本12(Rel-12)的D2D项目中引入的终端设备到终端设备之间的直接通信接口。邻近的终端之间可以在PC5的有效通信范围内通过直连链路进行数据传输，不需要通过中心节点(例如基站)进行转发，也不需要通过传统的蜂窝链路进行信息传输，通信较为快捷便利。(5) The PC5 interface is a direct communication interface between the terminal device and the terminal device introduced in the D2D project of the 3rd Generation Partnership Project (3GPP) Release 12 (Rel-12). The adjacent terminals can transmit data through the direct link within the effective communication range of the PC 5, without forwarding through the central node (for example, the base station), and do not need to transmit information through the traditional cellular link, and the communication is relatively fast. convenient.
(6)业务数据，在本文中，主要包括V2X业务下的数据，例如包括V2X的非(non)-IP业务的本地广播业务下的数据，即，本发明实施例中所述的业务数据，可以包括V2X的non-IP业务的本地广播数据。(6) The service data, in this document, mainly includes the data under the V2X service, for example, the data under the local broadcast service of the non-(non)-IP service including the V2X, that is, the service data described in the embodiment of the present invention, Local broadcast data for non-IP traffic of V2X may be included.
(7)本发明实施例中的术语：“***”和“网络”可被互换使用。“多个”是指两个或两个以上。“和/或”，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，字符“/”，如无特殊说明，一般表示前后关联对象是一种“或”的关系。(7) Terms in the embodiments of the present invention: "system" and "network" can be used interchangeably. "Multiple" means two or more. "and/or", describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately. In addition, the character "/", unless otherwise specified, generally indicates that the contextual object is an "or" relationship.
为了更好地理解本发明实施例提供的技术方案，下面首先介绍本发明实施例的技术背景。In order to better understand the technical solutions provided by the embodiments of the present invention, the technical background of the embodiments of the present invention is first described below.
LTE是目前主流的无线通信技术，其中D2D技术被作为重要特性且进行了标准化工作，其支持终端之间进行直连通信。考虑到部分V2X业务(例如V2V/V2I)通信场景也属于终端直连通信，因此可以通过D2D技术来传输V2X业务数据，可参考图1，其中包括基站、车辆1和车辆2，车辆1与车辆2可以通过直连方式直接通信。但有时由于建筑物的遮挡(例如十字路口)或者车辆需要将消息传播的更远等需求，则需使用其他通信方式，例如通过基站中转的方式，车辆可以将V2X业务数据传给基站，再由基站传给其他车辆，以实现车联网通信。其中车辆与周围终端通过直连方式通信的接口可以称为PC5接口，而车辆与基站之间的接口可以称为Uu接口。LTE is currently the mainstream wireless communication technology, in which D2D technology is regarded as an important feature and standardization work, which supports direct communication between terminals. Considering that some V2X services (such as V2V/V2I) communication scenarios also belong to terminal direct communication, V2X service data can be transmitted through D2D technology. Referring to FIG. 1, which includes base station, vehicle 1 and vehicle 2, vehicle 1 and vehicle 2 can communicate directly through direct connection. However, sometimes due to the occlusion of the building (such as a crossroads) or the need for the vehicle to spread the message farther, other communication methods are needed. For example, by means of the base station relay, the vehicle can transmit the V2X service data to the base station, and then The base station transmits to other vehicles to implement the vehicle networking communication. The interface in which the vehicle communicates with the surrounding terminals through direct connection may be referred to as a PC5 interface, and the interface between the vehicle and the base station may be referred to as a Uu interface.
而现有的V2X业务中，当V2X业务数据需要经基站转发的方式进行本地广播时，需要经基站上传到核心网，在核心网进行路由寻址与转发之后，再经下行传输到基站进行广播。可参考图2，其中包括基站、MME、车辆1、车辆2和车辆3。例如车辆1生成了需要与车辆2进行通信的V2X业务数据，则车辆1将V2X业务数据发送给基站，基站再转发给核心网中的MME，MME进行路由寻址和转发，再将该V2X业务数据发送给基站，基站再发送给车辆2。In the existing V2X service, when the V2X service data needs to be locally broadcasted by the base station, it needs to be uploaded to the core network through the base station, and after the core network performs route addressing and forwarding, the downlink transmission is performed to the base station for broadcasting. . Reference may be made to FIG. 2, which includes a base station, an MME, a vehicle 1, a vehicle 2, and a vehicle 3. For example, when the vehicle 1 generates V2X service data that needs to communicate with the vehicle 2, the vehicle 1 transmits the V2X service data to the base station, and the base station forwards the MME to the MME in the core network, and the MME performs route addressing and forwarding, and then the V2X service. The data is sent to the base station, which in turn sends it to the vehicle 2.
由此可知，V2X业务可以通过Uu接口发送，经LTE上行链路和基站以及核心网转发，最后发送至对端终端；或通过PC5接口发送，经V2X直连链路(sidelink)直接发送至对 端终端。但是，通过Uu接口和通过PC5接口进行业务传输的可靠性和时延不同，通过Uu接口发送V2X业务，可靠性更高，通过PC5接口发送V2X业务，时延更低。终端在发送V2X业务时，根据业务的业务类型和对QoS需求的不同，所选择的传输路径也不同，其传输路径包括Uu接口、PC5接口、Uu接口或PC5接口、Uu接口和PC5接口。Therefore, the V2X service can be sent through the Uu interface, forwarded through the LTE uplink and the base station, and the core network, and finally sent to the peer terminal; or sent through the PC5 interface, and directly sent to the pair via the V2X direct link (sidelink). Terminal. However, the reliability and delay of the service transmission through the Uu interface and the PC5 interface are different. The V2X service is sent through the Uu interface. The reliability is higher. The V2X service is sent through the PC5 interface, and the delay is lower. When a terminal sends a V2X service, the selected transmission path is different according to the service type of the service and the QoS requirement. The transmission path includes a Uu interface, a PC5 interface, a Uu interface, a PC5 interface, a Uu interface, and a PC5 interface.
现有技术中，V2X业务的传输路径选择由上层(Upper Layer)决定，例如可以是适配层或应用层，上层根据V2X业务的服务质量(Quality of Service，QoS)需求或/和业务类型选择传输路径，进行业务传输。In the prior art, the transmission path selection of the V2X service is determined by the upper layer, for example, the adaptation layer or the application layer, and the upper layer selects according to the quality of service (QoS) requirements of the V2X service or/and the service type. Transmission path for service transmission.
当上层选择Uu接口进行业务传输时，将业务数据递交给接入层；网络设备会根据不同的业务的QoS需求为终端设备在终端设备和P-GW之间建立相应的承载。终端设备会基于TFT业务流模板(Traffic Flow Template，TFT)把业务数据过滤到相应的承载，使每个业务可以在具有合适的QoS的承载中传输。When the upper layer selects the Uu interface for service transmission, the service data is delivered to the access layer; the network device establishes a corresponding bearer between the terminal device and the P-GW according to the QoS requirements of different services. The terminal device filters the service data to the corresponding bearer based on the TFT Traffic Flow Template (TFT), so that each service can be transmitted in the bearer with the appropriate QoS.
当上层选择PC5接口进行业务传输时，上层通过原语的形式将相关参数递交给接入层，终端设备根据不同业务的目的标识(Destination ID)为终端设备建立直连链路无线承载(Sidelink Radio Bearer，SLRB)，进而使用这些承载进行业务传输。When the upper layer selects the PC5 interface for service transmission, the upper layer submits the relevant parameters to the access layer in the form of a primitive, and the terminal device establishes a direct link radio bearer for the terminal device according to the destination ID of the different service (Sidelink Radio). Bearer, SLRB), and then use these bearers for service transmission.
现有的传输路径选择在上层进行，由于上层在选择Uu接口和选择PC5接口时的工作机制不同，接入层无法灵活地根据信道测量结果进行路径切换，且在路径选择中会带来潜在的大时延，不能满足V2X业务高可靠低时延的性能需求。The existing transmission path selection is performed in the upper layer. Because the working mechanism of the upper layer is different when the Uu interface is selected and the PC5 interface is selected, the access layer cannot flexibly perform path switching according to the channel measurement result, and the potential selection is brought in the path selection. Large delays cannot meet the performance requirements of V2X services with high reliability and low latency.
鉴于此，本发明实施例提供一种新的数据传输方法，基于流(可以是QoS Flow)进行传输路径或无线承载的选择。本申请实施例中，终端获取配置信息，所述配置信息包括第一流标识以及所述第一流标识对应的数据无线承载的配置信息和直连链路无线承载的配置信息；获取业务数据和所述业务数据对应的第二流标识，根据所述第一流标识、所述第二流标识、所述第一流标识对应的数据无线承载的配置信息和直连链路无线承载的配置信息选择相应数据无线承载与直连链路无线承载中的至少一个作为目标无线承载，在所述目标无线承载上传输所述业务数据，由于终端设备可以根据实际需要灵活选择传输路径，减小了数据传输的时延。In view of this, the embodiment of the present invention provides a new data transmission method, and performs selection of a transmission path or a radio bearer based on a stream (which may be QoS Flow). In the embodiment of the present application, the terminal acquires configuration information, where the configuration information includes a first flow identifier, configuration information of a data radio bearer corresponding to the first flow identifier, and configuration information of a radio link of a direct link; acquiring service data and the Corresponding to the second flow identifier corresponding to the service data, selecting the corresponding data wireless according to the first flow identifier, the second flow identifier, the configuration information of the data radio bearer corresponding to the first flow identifier, and the configuration information of the radio bearer of the direct link At least one of the bearer and the direct link radio bearer is used as the target radio bearer, and the service data is transmitted on the target radio bearer. Since the terminal device can flexibly select the transmission path according to actual needs, the delay of data transmission is reduced. .
接下来结合附图介绍本发明实施例提供的技术方案。The technical solutions provided by the embodiments of the present invention are described in the following with reference to the accompanying drawings.
本申请一实施例提供一种业务数据传输方法，该方法可由终端设备执行。在下文的介绍过程中，以该方法应用在图1所示的应用场景或图2所示的应用场景为例。请参考图3，为该方法的流程图。An embodiment of the present application provides a service data transmission method, which may be performed by a terminal device. In the following description, the application scenario shown in FIG. 1 or the application scenario shown in FIG. 2 is applied as an example. Please refer to FIG. 3, which is a flowchart of the method.
步骤30：终端获取配置信息，所述配置信息包括第一流标识以及所述第一流标识对应的DRB的配置信息和SLRB的配置信息。Step 30: The terminal acquires configuration information, where the configuration information includes a first flow identifier, configuration information of the DRB corresponding to the first flow identifier, and configuration information of the SLRB.
具体的，终端的接入层获取配置信息。Specifically, the access layer of the terminal acquires configuration information.
具体的，DRB的配置信息包括：数据无线承载标识(Data Radio Bearer Identity，DRB ID)和对应的一套DRB配置参数，DRB配置参数可以包括：PDCP配置信息(pdcp-Config)、Specifically, the configuration information of the DRB includes: a data radio bearer identifier (DRB ID) and a corresponding set of DRB configuration parameters, and the DRB configuration parameter may include: PDCP configuration information (pdcp-Config),
RLC配置信息(rlc-Config)，演进分组***(Evolved Packet System Bearer，EPS)承载标识(eps-BearerIdentity)，逻辑信道标识(logicalChannelIdentity)，逻辑信道配置信息(logicalChannelConfig)等。RLC configuration information (rlc-Config), Evolved Packet System Bearer (EPS) bearer identifier (eps-BearerIdentity), logical channel identifier (logicalChannelIdentity), logical channel configuration information (logicalChannelConfig), and the like.
SLRB的配置信息可以包括：源标识，目的标识，以及对应的直连链路无线承载，具体包括载波和/或资源池配置信息，包括载波标识、载波配置信息，资源池标识、资源池配置信息等配置信息。The configuration information of the SLRB may include: a source identifier, a destination identifier, and a corresponding direct link radio bearer, and specifically includes carrier and/or resource pool configuration information, including carrier identifier, carrier configuration information, resource pool identifier, and resource pool configuration information. Configuration information.
配置信息可以是通过预配置的方式配置给终端，也可以由网络设备通过RRC专用信令或***广播的方式配置给终端，终端获取配置信息时，可以采用协议规范化的形式获取；或者通过预存储信息获取；或者通过上层应用获取配置信息。The configuration information may be configured to the terminal in a pre-configured manner, or may be configured by the network device through RRC dedicated signaling or system broadcast. When the terminal obtains the configuration information, the terminal may obtain the protocol in a standardized manner; or through pre-storage. Information acquisition; or obtain configuration information through the upper application.
可选的，在上述配置信息中可以包括一个使能指示信息，用于表示对于第一流标识使能其DRB、SLRB或使其DRB和SLRB同时使能。Optionally, the foregoing configuration information may include an enable indication information, configured to enable the DRB, the SLRB, or enable the DRB and the SLRB to be enabled simultaneously for the first flow identifier.
步骤31：所述终端获取业务数据和所述业务数据对应的第二流标识。Step 31: The terminal acquires service data and a second flow identifier corresponding to the service data.
具体的，终端的数据面获取业务数据，该业务数据以流的形式从上层传递给接入层，包括流标识和业务数据，以及该业务数据对应的业务特性，业务特性包括优先级(Proximity Service Per-Packet Priority，PPPP)、源标识(Source Identity)、目的标识(Destination Identity)等。Specifically, the data plane of the terminal acquires the service data, and the service data is transmitted from the upper layer to the access layer in the form of a stream, including the flow identifier and the service data, and the service characteristics corresponding to the service data, and the service characteristics include the priority (Proximity Service) Per-Packet Priority, PPPP), Source Identity, Destination Identity, and so on.
步骤32：所述终端根据所述第一流标识、所述第二流标识、所述第一流标识对应的数据无线承载的配置信息和直连链路无线承载的配置信息选择相应数据无线承载与直连链路无线承载中的至少一个作为目标无线承载。Step 32: The terminal selects corresponding data radio bearer and direct according to the first flow identifier, the second flow identifier, the configuration information of the data radio bearer corresponding to the first stream identifier, and the configuration information of the radio link of the direct link. At least one of the link radio bearers acts as a target radio bearer.
进一步的，当所述第二流标识与所述第一流标识相同时，所述终端选择所述数据无线承载与所述直连链路无线承载中的至少一个作为目标无线承载。Further, when the second flow identifier is the same as the first flow identifier, the terminal selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer.
步骤33：所述终端在所述目标无线承载上传输所述业务数据。Step 33: The terminal transmits the service data on the target radio bearer.
具体的，所述终端选择所述数据无线承载与所述直连链路无线承载中的至少一个作为目标无线承载，可以通过以下三种实现方式实现：Specifically, the terminal selects at least one of the data radio bearer and the direct link radio bearer as the target radio bearer, which can be implemented by the following three implementation manners:
第一种实现方式中：所述终端获取预设门限配置信息，所述预设门限配置信息包括第一预设门限与第二预设门限中的至少一个，所述终端根据测量结果和所述预设门限配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，所述第一预设门限包括至少一个信道负载预设门限；所述第二预设门限包括至少一个信号强度预设门限；所述测量结果包括信道负载测量结果和信号强度测量结果中的至少一个。In the first implementation manner, the terminal acquires preset threshold configuration information, where the preset threshold configuration information includes at least one of a first preset threshold and a second preset threshold, and the terminal according to the measurement result and the The preset threshold configuration information selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer, where the first preset threshold includes at least one channel load preset threshold; the second pre- The threshold is configured to include at least one signal strength preset threshold; the measurement result includes at least one of a channel load measurement result and a signal strength measurement result.
具体的，在实际应用中，信道负载可以用信道繁忙率(Channel Busy Ratio，CBR)来表征，所述信道负载预设门限可以是CBR(Channel Busy Ratio，CBR)门限，对应的信道负载测量结果是CBR；信号强度可以用参考信号接收功率(Reference Signal Receiving Power，RSRP)来表征，所述信号强度预设门限可以是RSRP门限，对应的信号强度测量结果是RSRP。Specifically, in a practical application, the channel load may be characterized by a Channel Busy Ratio (CBR), where the channel load preset threshold may be a CBR (Channel Busy Ratio, CBR) threshold, and a corresponding channel load measurement result. It is CBR; the signal strength can be characterized by Reference Signal Receiving Power (RSRP), the signal strength preset threshold can be an RSRP threshold, and the corresponding signal strength measurement result is RSRP.
第一种实现方式中，终端根据测量结果和所述预设门限配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载时，可以利用以下三种传输路径选择准则实现：In the first implementation manner, when the terminal selects at least one of the data radio bearer and the direct link radio bearer as the target radio bearer according to the measurement result and the preset threshold configuration information, the following three types of transmission may be utilized. Path selection criteria implementation:
传输路径选择准则一，所述终端根据所述至少一个信道负载预设门限和所述至少一个信道负载测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Transmission path selection criterion 1. The terminal selects at least one of the data radio bearer and the direct link radio bearer as a target radio according to the at least one channel load preset threshold and the at least one channel load measurement result. Hosted.
当所述信道负载测量结果大于或大于等于所述第一信道负载预设门限时，所述终端选择所述数据无线承载作为目标无线承载。当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限时，所述终端设备选择所述直连链路无线承载作为目标无线承载。When the channel load measurement result is greater than or equal to the first channel load preset threshold, the terminal selects the data radio bearer as the target radio bearer. When the channel load measurement result is less than or equal to the first channel load preset threshold, the terminal device selects the direct link radio bearer as the target radio bearer.
例如，当所述至少一个信道负载预设门限包括第一信道负载预设门限时，CBR门限用CBRthres表示，当CBR大于或大于等于CBRthres时，所述终端选择所述数据无线承载作为目标无线承载，当CBR小于等于CBRthres时，所述终端选择所述直连链路无线承载作 为目标无线承载。For example, when the at least one channel load preset threshold includes the first channel load preset threshold, the CBR threshold is represented by CBRthres, and when the CBR is greater than or equal to CBRthres, the terminal selects the data radio bearer as the target radio bearer. When the CBR is less than or equal to CBRthres, the terminal selects the direct link radio bearer as the target radio bearer.
又例如，当所述至少一个信道负载预设门限包括第一信道负载预设门限和第二信道负载预设门限时，第一CBR门限用CBRthresmin表示，第二CBR门限用CBRthresmax表示，其中，CBRthresmax>CBRthresmin，当CBR>(＝)CBRthresmax时，所述终端选择所述数据无线承载作为目标无线承载，当CBR<(＝)CBRthresmin时，所述终端选择所述直连链路无线承载作为目标无线承载。For another example, when the at least one channel load preset threshold includes a first channel load preset threshold and a second channel load preset threshold, the first CBR threshold is represented by CBRthresmin, and the second CBR threshold is represented by CBRthresmax, where CBRthresmax >CBRthresmin, when CBR>(=)CBRthresmax, the terminal selects the data radio bearer as the target radio bearer, and when the CBR<(=)CBRthresmin, the terminal selects the direct link radio bearer as the target radio Hosted.
传输路径选择准则二：所述终端根据所述至少一个信号强度预设门限和所述至少一个信号强度测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Transmission path selection criterion 2: the terminal selects at least one of the data radio bearer and the direct link radio bearer as a target radio according to the at least one signal strength preset threshold and the at least one signal strength measurement result Hosted.
当所述信号强度测量结果大于或大于等于所述第一信号强度预设门限时，所述终端选择所述数据无线承载作为目标无线承载；当所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，所述终端设备选择所述直连链路无线承载作为目标无线承载。When the signal strength measurement result is greater than or equal to the first signal strength preset threshold, the terminal selects the data radio bearer as a target radio bearer; when the signal strength measurement result is less than or less than or equal to the first When a signal strength presets a threshold, the terminal device selects the direct link radio bearer as the target radio bearer.
例如，当所述至少一个信号强度预设门限包括第一信号强度预设门限时，RSRP门限用RSRPthres表示，当RSRP>(＝)RSRPthres时，所述终端选择所述数据无线承载作为目标无线承载，当RSRP<(＝)RSRPthres时，所述终端选择所述直连链路无线承载作为目标无线承载。For example, when the at least one signal strength preset threshold includes the first signal strength preset threshold, the RSRP threshold is represented by RSRPthres, and when RSRP>(=)RSRPthres, the terminal selects the data radio bearer as the target radio bearer. When the RSRP<(=)RSRPthres, the terminal selects the direct link radio bearer as the target radio bearer.
又例如，当所述至少一个信号强度预设门限包括第一信号强度预设门限和第二信号强度预设门限时，第一RSRP门限用RSRPthresmin表示，第二RSRP门限用RSRPthresmax表示，其中，RSRPthresmax大于RSRPthresmin，当RSRP大于或大于等于RSRPthresmax时，所述终端选择所述数据无线承载作为目标无线承载，当RSRP小于或小于等于RSRPthresmin时，所述终端选择所述直连链路无线承载作为目标无线承载。For another example, when the at least one signal strength preset threshold includes a first signal strength preset threshold and a second signal strength preset threshold, the first RSRP threshold is represented by RSRPthresmin, and the second RSRP threshold is represented by RSRPthresmax, where RSRPthresmax If the RSRP is greater than or equal to RSRPthresmax, the terminal selects the data radio bearer as the target radio bearer, and when the RSRP is less than or equal to RSRPthresmin, the terminal selects the direct link radio bearer as the target radio. Hosted.
传输路径选择准则三：所述终端根据所述信道负载预设门限、所述信号强度预设门限、所述信道负载测量结果和所述信号强度测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Transmission path selection criterion 3: the terminal selects the data radio bearer and the direct connection according to the channel load preset threshold, the signal strength preset threshold, the channel load measurement result, and the signal strength measurement result At least one of the link radio bearers acts as a target radio bearer.
情况一，所述信道负载预设门限和所述信号强度预设门限均包含一个预设门限值时的情况。Case 1, the case where the channel load preset threshold and the signal strength preset threshold both include a preset threshold.
具体的，当所述信道负载测量结果大于或大于等于所述第一信道负载预设门限且所述信号强度测量结果大于或大于等于所述第一信号强度预设门限时，所述终端选择所述数据无线承载作为目标无线承载。Specifically, when the channel load measurement result is greater than or equal to the first channel load preset threshold and the signal strength measurement result is greater than or equal to the first signal strength preset threshold, the terminal selects a location The data radio bearer is used as the target radio bearer.
当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，所述终端设备选择所述直连链路无线承载作为目标无线承载。When the channel load measurement result is less than or equal to the first channel load preset threshold and the signal strength measurement result is less than or less than the first signal strength preset threshold, the terminal device selects the straight The link radio bearer acts as the target radio bearer.
当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且所述信号强度测量结果大于或大于等于所述第一信号强度预设门限时，所述终端设备选择所述数据无线承载或所述直连链路无线承载作为目标无线承载；或The terminal device selects the data when the channel load measurement result is less than or equal to the first channel load preset threshold and the signal strength measurement result is greater than or equal to the first signal strength preset threshold. a radio bearer or the direct link radio bearer as a target radio bearer; or
当所述负载测量结果大于或大于等于所述第一信道负载预设门限且所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，选择所述数据无线承载和所述直连链路无线承载作为目标无线承载。Selecting the data radio bearer and the data when the load measurement result is greater than or equal to the first channel load preset threshold and the signal strength measurement result is less than or less than the first signal strength preset threshold. The direct link radio bearer acts as the target radio bearer.
例如，对于RSRP门限和CBR门限分别只有一个门限值的情况：For example, for the case where the RSRP threshold and the CBR threshold have only one threshold, respectively:
此时CBR门限包括CBRthres，RSRP门限包括RSRPthres：At this time, the CBR threshold includes CBRthres, and the RSRP threshold includes RSRPthres:
RSRP大于或大于等于RSRPthres，CBR大于或大于等于CBRthres时，终端选择数据无线承载作为目标无线承载。When the RSRP is greater than or equal to RSRPthres, and the CBR is greater than or equal to CBRthres, the terminal selects the data radio bearer as the target radio bearer.
RSRP大于或大于等于RSRPthres，CBR小于或小于等于CBRthres时，终端选择数据无线承载和直连链路无线承载中的任意一个作为目标无线承载。When the RSRP is greater than or equal to RSRPthres, and the CBR is less than or equal to CBRthres, the terminal selects any one of the data radio bearer and the direct link radio bearer as the target radio bearer.
RSRP小于或小于等于RSRPthres，CBR大于或大于等于CBRthres时，终端选择数据无线承载和直连链路无线承载作为目标无线承载。When the RSRP is less than or equal to RSRPthres, and the CBR is greater than or equal to CBRthres, the terminal selects the data radio bearer and the direct link radio bearer as the target radio bearers.
RSRP小于或小于等于RSRPthres，CBR小于或小于等于CBRthres时，终端选择直连链路无线承载作为目标无线承载。When the RSRP is less than or equal to RSRPthres, and the CBR is less than or equal to CBRthres, the terminal selects the direct link radio bearer as the target radio bearer.
情况二，当所述信道负载预设门限和所述信号强度预设门限分别包括两种预设门限值的情况，信道负载预设门限包括第一信道负载预设门限和第二信道负载预设门限，其中第一信道负载预设门限小于第二信道负载预设门限；信号强度预设门限包括第一信号强度预设门限和第二信号轻度预设门限，其中第一信号强度预设门限小于第二信号强度预设门限。In the second case, when the channel load preset threshold and the signal strength preset threshold respectively include two preset thresholds, the channel load preset threshold includes a first channel load preset threshold and a second channel load preset. The threshold is set, wherein the first channel load preset threshold is smaller than the second channel load preset threshold; the signal strength preset threshold includes a first signal strength preset threshold and a second signal light preset threshold, wherein the first signal strength preset The threshold is less than the second signal strength preset threshold.
具体的，当所述信道负载测量结果大于或大于等于所述第二信道负载预设门限且/或所述信号强度测量结果大于或大于等于所述第二信号强度预设门限时，所述终端选择所述数据无线承载作为目标无线承载。Specifically, when the channel load measurement result is greater than or equal to the second channel load preset threshold and/or the signal strength measurement result is greater than or equal to the second signal strength preset threshold, the terminal The data radio bearer is selected as the target radio bearer.
当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且/或所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，所述终端选择所述直连链路无线承载作为目标无线承载。When the channel load measurement result is less than or equal to the first channel load preset threshold and/or the signal strength measurement result is less than or less than or equal to the first signal strength preset threshold, the terminal selects the The direct link radio bearer acts as the target radio bearer.
当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且所述信号强度测量结果大于或大于等于所述信号强度第二预设门限时，所述终端选择所述数据无线承载或所述直连链路无线承载作为目标无线承载。The terminal selects the data wireless when the channel load measurement result is less than or equal to the first channel load preset threshold and the signal strength measurement result is greater than or equal to the signal strength second preset threshold. The bearer or the direct link radio bearer is the target radio bearer.
当所述信道负载测量结果大于或大于等于所述第二信道负载预设门限且所述信号强度测量结果小于或小于等于所述信号强度第一预设门限时，所述终端选择所述数据无线承载和所述直连链路无线承载作为目标无线承载。The terminal selects the data wireless when the channel load measurement result is greater than or equal to the second channel load preset threshold and the signal strength measurement result is less than or less than the signal strength first preset threshold. The bearer and the direct link radio bearer are the target radio bearers.
例如，对于RSRP门限和CBR门限分别包括两个门限值的情况：For example, for the case where the RSRP threshold and the CBR threshold respectively include two thresholds:
此时CBR门限包括CBRthresmin和CBRthresmax，且CBRthresmin小于CBRthresmax；RSRP门限包括RSRPthresmin和RSRPthresmax，且RSRPthresmin小于RSRPthresmax。At this time, the CBR threshold includes CBRthresmin and CBRthresmax, and CBRthresmin is smaller than CBRthresmax; the RSRP threshold includes RSRPthresmin and RSRPthresmax, and RSRPthresmin is smaller than RSRPthresmax.
RSRP大于或大于等于RSRPthresmax，CBR大于或大于等于CBRthresmax时，终端选择数据无线承载作为目标无线承载。When the RSRP is greater than or equal to RSRPthresmax, and the CBR is greater than or equal to CBRthresmax, the terminal selects the data radio bearer as the target radio bearer.
RSRP大于或大于等于RSRPthresmax，CBR小于或小于等于CBRthresmin时，终端选择数据无线承载和直连链路无线承载中的任意一个作为目标无线承载。When the RSRP is greater than or equal to RSRPthresmax, and the CBR is less than or equal to CBRthresmin, the terminal selects any one of the data radio bearer and the direct link radio bearer as the target radio bearer.
RSRP小于或小于等于RSRPthresmin，CBR小于或小于等于CBRthresmin时，终端选择直连链路无线承载中作为目标无线承载。When the RSRP is less than or equal to RSRPthresmin, and the CBR is less than or equal to CBRthresmin, the terminal selects the direct link radio bearer as the target radio bearer.
其他情形中，终端选择数据无线承载和直连链路无线承载作为目标无线承载。In other cases, the terminal selects the data radio bearer and the direct link radio bearer as the target radio bearers.
需要注意的是，为避免选择的路径的频繁切换，目标无线承载的选择可以是半静态的，即每次选择后生效T时长；或生效N次业务数据传输。It should be noted that in order to avoid frequent switching of the selected path, the selection of the target radio bearer may be semi-static, that is, the T duration is effective after each selection; or N times of service data transmission is effective.
第二种实现方式中，所述终端获取业务特性配置信息，所述终端根据所述业务特性配置信息和所述业务数据的业务特性选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。In a second implementation manner, the terminal acquires service characteristic configuration information, and the terminal selects the data radio bearer and the direct link radio bearer according to the service characteristic configuration information and the service characteristic of the service data. At least one of the wireless bearers as the target.
业务特性配置信息，即业务特性与无线承载之间的绑定关系，业务特性配置信息可以 由基站或核心网配置给终端，也可以预配置或以协议规范化的形式体现，根据业务特性配置信息选择目标无线承载时，可以通过以下过程实现：The service feature configuration information, that is, the binding relationship between the service feature and the radio bearer. The service feature configuration information can be configured by the base station or the core network to the terminal, or can be pre-configured or standardized in the form of a protocol. The target radio bearer can be implemented by the following process:
S1：所述终端获取业务特性配置信息，所述业务特性配置信息包括第一业务特性和所述第一业务特性对应的目标无线承载配置信息。S1: The terminal acquires service feature configuration information, where the service feature configuration information includes a first service feature and target radio bearer configuration information corresponding to the first service feature.
S2：所述终端获取所述业务数据对应的第二业务特性。S2: The terminal acquires a second service characteristic corresponding to the service data.
S3：所述终端根据所述第二业务特性和所述业务特性配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。S3: The terminal selects at least one of the data radio bearer and the direct link radio bearer as the target radio bearer according to the second service characteristic and the service characteristic configuration information.
其中，业务特性包括优先级、业务类型、源标识、目的标识、时延、可靠性、速度等的至少一个。The service feature includes at least one of a priority, a service type, a source identifier, a destination identifier, a delay, a reliability, a speed, and the like.
需要说明的是，业务数据的业务特性在终端获取所述业务数据时一起获得，当上层将业务数据传递给适配层和接入层时，相应的业务特性也以参数的形式传递了下来，包括优先级、源标识、目的标识、时延、可靠性、丢包率、(车辆)速度、传输速率等。It should be noted that the service characteristics of the service data are obtained together when the terminal acquires the service data. When the upper layer transmits the service data to the adaptation layer and the access layer, the corresponding service characteristics are also transmitted in the form of parameters. Including priority, source identification, destination identification, delay, reliability, packet loss rate, (vehicle) speed, transmission rate, etc.
第三种实现方式中，所述终端从网络设备获取目标无线承载配置信息，所述终端根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，具体实现时，可以包括以下两种可能的设计：In a third implementation manner, the terminal acquires target radio bearer configuration information from a network device, and the terminal selects at least one of the data radio bearer and the direct link radio bearer according to the target radio bearer configuration information. As a target radio bearer, when it is implemented, it may include the following two possible designs:
第一种可能的设计中：所述终端获取所述测量结果，将所述测量结果上报给所述网络设备，并从所述网络设备获取目标无线承载配置信息，所述终端根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。In a first possible design, the terminal acquires the measurement result, reports the measurement result to the network device, and acquires target radio bearer configuration information from the network device, where the terminal is wireless according to the target The bearer configuration information selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer.
第二种可能的设计中：所述终端获取所述测量结果，根据所述测量结果和所述预设门限配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个上报给所述网络设备，并从所述网络设备获取所述目标无线承载配置信息，所述终端根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。In a second possible design, the terminal acquires the measurement result, and selects at least one of the data radio bearer and the direct link radio bearer according to the measurement result and the preset threshold configuration information. And obtaining, by the network device, the target radio bearer configuration information, where the terminal selects at least the data radio bearer and the direct link radio bearer according to the target radio bearer configuration information. One as a target radio bearer.
需要说明的是，网络设备指示目标无线承载配置信息时，可以是采用一个指示字段来指示终端选择DRB、SLRB、DRB或SLRB、DRB和SLRB、或默认承载中的至少一个作为目标无线承载；也可以是指示一套传输路径或目标无线承载的配置信息，终端根据该配置信息选择合适的传输路径或目标无线承载；也可以是指示一套路径选择规则，终端根据该路径选择规则选择合适的传输路径或目标无线承载。It should be noted that, when the network device indicates the target radio bearer configuration information, an indication field may be used to indicate that the terminal selects at least one of the DRB, the SLRB, the DRB, or the SLRB, the DRB, and the SLRB, or the default bearer as the target radio bearer; It may be configuration information indicating a set of transmission paths or target radio bearers, and the terminal selects an appropriate transmission path or a target radio bearer according to the configuration information; or may indicate a set of path selection rules, and the terminal selects an appropriate transmission according to the path selection rule. Path or target radio bearer.
具体的，所述终端选择所述数据无线承载与所述直连链路无线承载中的至少一个作为目标无线承载时，通过不同的协议层来实现：Specifically, when the terminal selects at least one of the data radio bearer and the direct link radio bearer as the target radio bearer, the terminal is implemented by using different protocol layers:
一种可能的实现方式中，所述终端的第一协议层获取所述测量结果，并根据所述测量结果选择目标无线承载，所述终端的第一协议层在所述目标无线承载上传输业务数据，其中，所述第一协议层是SDAP层；或所述第一协议层是RRC层、PDCP层、RLC层和MAC层中的一个。In a possible implementation, the first protocol layer of the terminal acquires the measurement result, and selects a target radio bearer according to the measurement result, where the first protocol layer of the terminal transmits a service on the target radio bearer. Data, wherein the first protocol layer is a SDAP layer; or the first protocol layer is one of an RRC layer, a PDCP layer, an RLC layer, and a MAC layer.
另一种可能的实现方式中：所述终端的第二协议层获取所述测量结果，并根据所述测量结果选择目标无线承载，所述终端的第一协议层在所述目标无线承载上传输业务数据，所述第二协议层是RRC层或MAC层。In another possible implementation manner, the second protocol layer of the terminal acquires the measurement result, and selects a target radio bearer according to the measurement result, where the first protocol layer of the terminal transmits on the target radio bearer Service data, the second protocol layer is an RRC layer or a MAC layer.
具体的，目标无线承载的选择在接入层协议栈的SDAP层进行，选择DRB作为业务数据的目标无线承载时，业务数据经NR中Uu口对应的协议栈依次经PDCP层、RLC层、MAC层以及物理层处理后经Uu口发送出去；当所选则的目标无线承载为SLRB时，业务 数据经NR-V2X的Sidelink协议栈依次经其PDCP层、RLC层、MAC层以及物理层处理后经PC5口发送出去；相应的，当同时选择DRB和SLRB作为业务数据传输的目标无线承载时，业务数据同时经NR和NR-V2X Sidelink的协议栈依次经PDCP层、RLC层、MAC层和物理层经过相应的处理后通过Uu口和PC5口发送出去。Specifically, the selection of the target radio bearer is performed at the SDAP layer of the access layer protocol stack, and when the DRB is selected as the target radio bearer of the service data, the service data is sequentially passed through the PDCP layer, the RLC layer, and the MAC through the protocol stack corresponding to the Uu interface in the NR. After the layer and the physical layer are processed, the Uu interface is sent out; when the selected target radio bearer is SLRB, the service data is processed by the NR-V2X Sidelink protocol stack through the PDCP layer, the RLC layer, the MAC layer, and the physical layer. The PC5 port sends out; correspondingly, when DRB and SLRB are simultaneously selected as the target radio bearers for service data transmission, the service data is simultaneously passed through the PDCP layer, the RLC layer, the MAC layer, and the physical layer through the protocol stack of the NR and NR-V2X Sidelink. After the corresponding processing, the layer is sent out through the Uu port and the PC5 port.
可选的，目标无线承载的选择也可以在RRC层、PDCP层、RLC层、MAC层进行，在此不做限定。Optionally, the selection of the target radio bearer may also be performed in the RRC layer, the PDCP layer, the RLC layer, and the MAC layer, which is not limited herein.
具体的，所述终端从网络设备获取无线承载配置信息时，包括以下四种方式：Specifically, when the terminal acquires radio bearer configuration information from the network device, the following four modes are included:
方式一，所述终端通过RRC信令获取所述网络设备发送的无线承载配置信息。In a first mode, the terminal acquires radio bearer configuration information sent by the network device by using RRC signaling.
方式二：所述终端通过SDAP PDU头中的字段获取所述网络设备发送的无线承载配置信息。Manner 2: The terminal acquires radio bearer configuration information sent by the network device by using a field in a header of the SDAP PDU.
方式三：所述终端通过MAC CE信令获取所述网络设备发送的无线承载配置信息。Manner 3: The terminal acquires radio bearer configuration information sent by the network device by using MAC CE signaling.
方式四：所述终端通过DCI获取所述网络设备发送的无线承载配置信息。Manner 4: The terminal acquires radio bearer configuration information sent by the network device by using the DCI.
下面将上述方法应用在NR***为例，进行举例说明。The above method is applied to the NR system as an example for illustration.
对于基于NR技术的V2X业务数据，在NR-V2X协议中引入NR中QoS flow的概念，在终端设备侧对于每一个V2X的QoS flow建立DRB和SLRB，具体的，如图4所示，上层协议层将V2X业务数据映射到QoS flow，并和相关参数一并交给接入层；接入层的SDAP层将QoS Flow映射到DRB或/和SLRB；在终端设备侧为QoS Flow配置DRB和SLRB；其中DRB对应的业务数据通过Uu口进行传输，SLRB对应的业务数据通过PC5口进行传输。For the V2X service data based on the NR technology, the concept of QoS flow in the NR is introduced in the NR-V2X protocol, and the DRB and the SLRB are established for the QoS flow of each V2X on the terminal device side. Specifically, as shown in FIG. 4, the upper layer protocol is shown. The layer maps the V2X service data to the QoS flow and forwards it to the access layer together with the relevant parameters; the SDAP layer of the access layer maps the QoS Flow to the DRB or/and the SLRB; and configures the DRB and the QoS Flow on the terminal device side. SLRB; the service data corresponding to the DRB is transmitted through the Uu port, and the service data corresponding to the SLRB is transmitted through the PC5 port.
实施例一Embodiment 1
在终端设备侧对于每一个V2X的QoS flow建立DRB和SLRB，当有V2X业务数据传输时，终端设备根据业务特性配置信息和业务数据的业务特性选择目标无线承载进行业务数据的传输。具体流程如下所示。On the terminal device side, the DRB and the SLRB are established for each V2X QoS flow. When there is V2X service data transmission, the terminal device selects the target radio bearer to transmit the service data according to the service characteristic configuration information and the service characteristic of the service data. The specific process is as follows.
步骤50：终端设备获取配置信息，所述配置信息包括第一流标识以及所述第一流标识对应的DRB的配置信息和SLRB的配置信息。Step 50: The terminal device acquires configuration information, where the configuration information includes a first flow identifier and configuration information of the DRB corresponding to the first flow identifier and configuration information of the SLRB.
步骤51：终端设备获取业务特性配置信息，所述业务特性配置信息包括第一业务特性和所述第一业务特性对应的目标无线承载配置信息。Step 51: The terminal device obtains the service feature configuration information, where the service feature configuration information includes the first service feature and the target radio bearer configuration information corresponding to the first service feature.
例如，第一业务特性包括优先级、业务类型、源标识、目的标识、时延、可靠性、速度中的至少一个，假设第一业务特性是优先级时，业务特性配置信息是不同优先级对应的目标无线承载配置信息。For example, the first service feature includes at least one of a priority, a service type, a source identifier, a destination identifier, a delay, a reliability, and a speed. If the first service feature is a priority, the service feature configuration information is a different priority. Target radio bearer configuration information.
步骤52：终端设备获取业务数据和所述业务数据对应的第二流标识，以及所述业务数据对应的第二业务特性。Step 52: The terminal device acquires the second flow identifier corresponding to the service data and the service data, and the second service feature corresponding to the service data.
步骤53：在所述第一流标识和所述第二流标识相同时，终端设备根据所述第二业务特性和所述业务特性配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Step 53: When the first flow identifier and the second flow identifier are the same, the terminal device selects the data radio bearer and the direct link radio bearer according to the second service characteristic and the service characteristic configuration information. At least one of the targets is a radio bearer.
具体的，终端设备根据第二业务特性对应的优先级，和业务特性配置信息确定第二业务特性对应的目标无线承载配置信息，根据目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Specifically, the terminal device determines the target radio bearer configuration information corresponding to the second service feature according to the priority corresponding to the second service feature, and the service feature configuration information, and selects the data radio bearer and the direct connection according to the target radio bearer configuration information. At least one of the link radio bearers acts as a target radio bearer.
步骤54：终端设备在所选择的目标无线承载上发送业务数据。Step 54: The terminal device sends the service data on the selected target radio bearer.
具体的，目标无线承载的选择在接入层协议栈的SDAP层进行，选择DRB作为业务 数据传输的承载时，业务数据经NR中Uu口对应的协议栈依次经PDCP层、RLC层、MAC层以及物理层处理后经Uu口发送出去；当选择SLRB作为业务数据传输的承载时，业务数据经NR-V2X的Sidelink协议栈依次经其PDCP层、RLC层、MAC层以及物理层处理后经PC5口发送出去；相应的，当同时选择DRB和SLRB作为业务数据传输的承载时，业务数据同时经NR和NR-V2X Sidelink的协议栈依次经PDCP层、RLC层、MAC层和物理层经过相应的处理后通过Uu口和PC5口发送出去；Specifically, the selection of the target radio bearer is performed in the SDAP layer of the access layer protocol stack, and when the DRB is selected as the bearer of the service data transmission, the service data is sequentially passed through the PDCP layer, the RLC layer, and the MAC layer through the protocol stack corresponding to the Uu interface in the NR. And the physical layer processing is sent out through the Uu port; when the SLRB is selected as the bearer of the service data transmission, the service data is processed by the PDCP layer, the RLC layer, the MAC layer, and the physical layer through the SF-V2X Sidelink protocol stack, and then processed by the PC5. The port is sent out; correspondingly, when DRB and SLRB are simultaneously selected as bearers for service data transmission, the service data is simultaneously passed through the PDCP layer, the RLC layer, the MAC layer, and the physical layer through the protocol stack of the NR and NR-V2X Sidelink. After processing, it is sent out through Uu port and PC5 port;
可选的，目标无线承载的选择也可以在PDCP层、RLC层、MAC层进行，在此不做限定。Optionally, the selection of the target radio bearer may also be performed in the PDCP layer, the RLC layer, and the MAC layer, which is not limited herein.
步骤55：接收端终端设备接收到上述业务数据时在接入层或上层进行汇聚。Step 55: The receiving terminal device aggregates at the access layer or the upper layer when receiving the service data.
具体的，对于同时在Uu口和PC5口传输的业务数据，接入层接收到业务数据时，经相应的协议栈处理后递交至上层，由上层的传输控制协议(Transmission Control Protocol，TCP)协议栈或单独的上层协议栈进行重复包检测、丢包以及合并；或由SDAP层通过相应的重复包的检测与重复包的丢弃机制对接收到的包进行重复包检测与丢包以及合并；或由PDCP层、RLC层或MAC层进行重复包检测与丢包以及合并，在此不做限定；Specifically, for the service data transmitted simultaneously on the Uu port and the PC5 port, when the access layer receives the service data, it is processed by the corresponding protocol stack and then delivered to the upper layer, and the upper layer transmits a Transmission Control Protocol (TCP) protocol. Repeated packet detection, packet loss, and merging by the stack or a separate upper layer protocol stack; or repeated packet detection, packet loss, and merging of the received packet by the SDAP layer through the corresponding duplicate packet detection and duplicate packet discarding mechanism; or Repeated packet detection, packet loss, and merging by the PDCP layer, the RLC layer, or the MAC layer are not limited herein;
实施例一中，在V2X协议栈中引入SDAP层，为QoS flow在终端设备侧配置DRB和SLRB，并在接入层进行传输路径或目标无线承载的选择，使得可以在接入层可以灵活地根据业务数据的业务特性选择传输路径，减少了传输路径的切换时延。In the first embodiment, the SDAP layer is introduced in the V2X protocol stack, and the DRB and the SLRB are configured on the terminal device side for the QoS flow, and the transmission path or the target radio bearer is selected at the access layer, so that the access layer can be flexibly The transmission path is selected according to the service characteristics of the service data, which reduces the handover delay of the transmission path.
实施例二Embodiment 2
在终端设备侧对于每一个V2X的QoS flow建立DRB和SLRB，当有V2X业务数据传输时，终端设备根据预设门限配置信息和信道负载测量结果、信号强度测量结果选择目标无线承载进行业务数据的传输。具体流程如下所示。The DRB and the SLRB are established for the QoS flow of each V2X on the terminal device side. When there is V2X service data transmission, the terminal device selects the target radio bearer to perform service data according to the preset threshold configuration information, the channel load measurement result, and the signal strength measurement result. transmission. The specific process is as follows.
步骤60：终端设备获取配置信息，所述配置信息包括第一流标识以及所述第一流标识对应的DRB的配置信息和SLRB的配置信息。Step 60: The terminal device acquires configuration information, where the configuration information includes a first flow identifier and configuration information of the DRB corresponding to the first flow identifier and configuration information of the SLRB.
步骤61：终端设备获取业务数据和所述业务数据对应的第二流标识。Step 61: The terminal device acquires the service data and the second flow identifier corresponding to the service data.
步骤62：终端设备获取预设门限配置信息，所述预设门限配置信息包括CBR门限和RSRP门限。Step 62: The terminal device acquires preset threshold configuration information, where the preset threshold configuration information includes a CBR threshold and an RSRP threshold.
可选的，所述CBR门限可以是包括一个门限值CBRthres，或是两个门限值CBRthresmin和CBRthresmax，其中CBRthresmin小于CBRthresmax；Optionally, the CBR threshold may include a threshold CBRthres or two thresholds CBRthresmin and CBRthresmax, where CBRthresmin is less than CBRthresmax;
可选的，所述RSRP门限可以是包括一个门限值RSRPthres，或是两个门限值RSRPthresmin和RSRPthresmax，其中RSRPthresmin小于RSRPthresmax；Optionally, the RSRP threshold may include a threshold value RSRPthres, or two threshold values RSRPthresmin and RSRPthresmax, where RSRPthresmin is less than RSRPthresmax;
因此，可选的，所述预设门限配置信息的形式可以是：Therefore, optionally, the preset threshold configuration information may be in the form of:
CBRthres+RSRPthres，或CBRthres+RSRPthres+QoS flow ID；或CBRthres+RSRPthres, or CBRthres+RSRPthres+QoS flow ID; or
CBRthresmin+CBRthresmax+RSRPthresmin+RSRPthresmax；或CBRthresmin+CBRthresmax+RSRPthresmin+RSRPthresmax; or
CBRthresmin+CBRthresmax+RSRPthresmin+RSRPthresmax+QoS flow ID；CBRthresmin+CBRthresmax+RSRPthresmin+RSRPthresmax+QoS flow ID;
步骤63：终端设备获取CBR和RSRP测量结果。Step 63: The terminal device acquires CBR and RSRP measurement results.
具体的，终端设备获取CBR和RSRP测量结果时，包括：终端设备通过测量获取CBR和RSRP测量结果或终端设备从基站获取CBR和RSRP测量结果，获取方式在此不做限定。Specifically, when the terminal device obtains the CBR and the RSRP measurement result, the terminal device obtains the CBR and the RSRP measurement result by using the measurement, or the terminal device obtains the CBR and the RSRP measurement result from the base station, and the obtaining manner is not limited herein.
可选的，终端设备获取CBR和RSRP测量结果可以是由终端设备的RRC层或MAC层进行，也可以是终端设备的SDAP层、PDCP层或RLC层进行，在此不做限定；终端设备的相应协议层获取测量结果后递交至终端设备的决策协议层，终端设备的决策协议层可 以是SDAP层、PDCP层、RLC层、MAC层，甚至是RRC层或物理层，在此不做具体限定；具体的，对于PC5口测量其CBR，对于Uu口，测量其RSRP。Optionally, the CBR and the RSRP measurement result of the terminal device may be performed by the RRC layer or the MAC layer of the terminal device, or may be performed by the SDAP layer, the PDCP layer, or the RLC layer of the terminal device, which is not limited herein; The corresponding protocol layer obtains the measurement result and submits it to the decision protocol layer of the terminal device. The decision protocol layer of the terminal device may be the SDAP layer, the PDCP layer, the RLC layer, the MAC layer, or even the RRC layer or the physical layer, and is not specifically limited herein. Specifically, the CBR is measured for the PC5 port, and the RSRP is measured for the Uu port.
步骤63：在所述第一流标识和所述第二流标识相同时，终端设备根据CBR和RSRP测量结果、CBR门限、RSRP门限从DRB和SLRB中选择至少一个作为目标无线承载。Step 63: When the first flow identifier and the second flow identifier are the same, the terminal device selects at least one of the DRB and the SLRB as the target radio bearer according to the CBR and RSRP measurement result, the CBR threshold, and the RSRP threshold.
具体的，终端设备的决策协议层根据CBR和RSRP测量结果和预设门限配置信息(包括CBR门限和RSRP门限)和传输路径选择准则选择目标无线承载。Specifically, the decision protocol layer of the terminal device selects the target radio bearer according to the CBR and RSRP measurement results and the preset threshold configuration information (including the CBR threshold and the RSRP threshold) and the transmission path selection criterion.
这里的传输路径选择准则可以参数前文中的先关描述，在此不再赘述。The transmission path selection criterion herein may be described in the foregoing description of the parameters, and will not be described herein.
步骤64～步骤65，可参阅实施例一种的步骤54～步骤55。Steps 64 to 65, refer to steps 54 to 55 of the embodiment.
实施例二中，终端设备根据预设门限配置信息中的CBR门限和RSRP门限以及CBR、RSRP测量结果，根据传输路径选择准则选择目标无线承载进行业务数据的传输，这样可以有效的根据PC5口的信道负载情况或Uu口的无线信号强度选择合适的传输路径或目标无线承载，可以平衡信道负载并保证业务的时延、可靠性等性能指标得到保障。In the second embodiment, the terminal device selects the target radio bearer to perform service data transmission according to the CBR threshold and the RSRP threshold and the CBR and RSRP measurement results in the preset threshold configuration information, so that the terminal can effectively transmit the service data according to the PC5 interface. The channel load condition or the wireless signal strength of the Uu interface selects an appropriate transmission path or a target radio bearer, which can balance the channel load and ensure that performance indicators such as delay and reliability of the service are guaranteed.
实施例三Embodiment 3
在终端设备侧对于每一个V2X的QoS flow建立DRB和SLRB，当有V2X业务数据传输时，终端设备根据从网络设备获取的目标无线承载配置信息选择目标无线承载进行业务数据的传输。具体流程如下所示。The DRB and the SLRB are established for the QoS flow of each V2X on the terminal device side. When there is V2X service data transmission, the terminal device selects the target radio bearer to transmit the service data according to the target radio bearer configuration information acquired from the network device. The specific process is as follows.
步骤70：终端设备获取配置信息，所述配置信息包括第一流标识以及所述第一流标识对应的DRB的配置信息和SLRB的配置信息。Step 70: The terminal device acquires configuration information, where the configuration information includes a first flow identifier and configuration information of the DRB corresponding to the first flow identifier and configuration information of the SLRB.
步骤71：终端设备获取业务数据和所述业务数据对应的第二流标识。Step 71: The terminal device acquires the service data and the second flow identifier corresponding to the service data.
步骤72：终端设备进行CBR和RSRP测量，并将CBR和RSRP测量结果上报给网络设备。Step 72: The terminal device performs CBR and RSRP measurement, and reports the CBR and RSRP measurement results to the network device.
具体的，终端设备测量CBR和RSRP，并将CBR和RSRP测量结果上报给网络设备，包括：Specifically, the terminal device measures the CBR and the RSRP, and reports the CBR and the RSRP measurement result to the network device, including:
终端设备测量CBR和RSRP，并周期性地将CBR和RSRP测量结果上报给网络设备；或The terminal device measures CBR and RSRP, and periodically reports the CBR and RSRP measurement results to the network device; or
终端设备获取测量结果上报配置信息，所述测量结果上报配置信息可以包括CBR上报配置信息(CBRthresrpt)CBRthresrpt和RSRP上报配置信息(RSRPthresrpt)；并根据测量结果上报配置信息将CBR和RSRP测量结果上报给网络设备。The terminal device obtains the measurement result report configuration information, and the measurement result report configuration information may include CBR report configuration information (CBRthresrpt) CBRthresrpt and RSRP report configuration information (RSRPthresrpt); and report the CBR and RSRP measurement results to the configuration result according to the measurement result. Internet equipment.
步骤73：网络设备根据CBR和RSRP测量结果、传输路径选择准则选择目标无线承载。Step 73: The network device selects the target radio bearer according to the CBR and RSRP measurement results and the transmission path selection criterion.
可选的，网络设备也可以根据业务数据的业务特性选择目标无线承载，或Optionally, the network device may also select a target radio bearer according to service characteristics of the service data, or
终端设备根据CBR和RSRP测量结果和业务数据的业务特性选择出目标无线承载，并将选择的目标无线承载上报给网络设备。The terminal device selects the target radio bearer according to the CBR and the RSRP measurement result and the service characteristic of the service data, and reports the selected target radio bearer to the network device.
步骤74：终端设备获取网络设备发送的目标无线承载配置信息。Step 74: The terminal device acquires target radio bearer configuration information sent by the network device.
可选的，网络设备通过SDAP PDU头中的字段指示相应目标无线承载；或通过MAC CE、RRC专用信令、DCI等指示目标无线承载。Optionally, the network device indicates the corresponding target radio bearer through a field in the SDAP PDU header; or indicates the target radio bearer by using a MAC CE, an RRC dedicated signaling, a DCI, or the like.
步骤75：在第一流标识和第二流标识相同时，终端设备根据网络设备发送的目标无线承载配置信息，选择相应的目标无线承载，这里的目标无线承载的选择可以是由终端设备的SDAP层执行的，也可以是PDCP层、RLC层、MAC层等，在此不做限定。Step 75: When the first flow identifier and the second flow identifier are the same, the terminal device selects a corresponding target radio bearer according to the target radio bearer configuration information sent by the network device, where the target radio bearer may be selected by the SDAP layer of the terminal device. The PDCP layer, the RLC layer, the MAC layer, and the like may be implemented, and are not limited herein.
步骤76～步骤77可参阅实施例一中的步骤55～步骤56。Steps 76 to 77 can refer to steps 55 to 56 in the first embodiment.
实施例三中网络设备基于业务数据的业务特性需求或终端设备上报的CBR和、RSRP测量结果，或终端设备上报的目标无线承载中的至少一种策略选择传输路径/目标无线承载通过目标无线承载配置信息指示给终端设备。终端设备获取目标无线承载配置信息，选择相应的传输路径/目标无线承载进行业务数据的传输，这样可以使不具备测量功能的终端设备进行路径或目标无线承载选择也是基于信道负载、接收信号强度、业务特性等的选择，从而降低业务数据的传输时延。In the third embodiment, the network device selects the transmission path/target radio bearer through the target radio bearer based on the service characteristic requirement of the service data or the CBR and RSRP measurement result reported by the terminal device, or the target radio bearer reported by the terminal device. The configuration information is indicated to the terminal device. The terminal device acquires the target radio bearer configuration information, and selects the corresponding transmission path/target radio bearer to transmit the service data, so that the path device or the target radio bearer selection of the terminal device not having the measurement function is also based on the channel load, the received signal strength, The selection of service characteristics, etc., thereby reducing the transmission delay of service data.
实施例四Embodiment 4
针对业务数据先于PDN连接建立的情况，需要设置默认的传输承载或传输路径。For the case where the service data is established before the PDN connection, the default transport bearer or transmission path needs to be set.
1)终端设备基于CBR和RSRP测量结果选择信道负载最低、接收信号强度最强的传输路径或传输承载作为默认的传输路径或传输承载。1) The terminal device selects the transmission path or transmission bearer with the lowest channel load and the strongest received signal strength as the default transmission path or transmission bearer based on the CBR and RSRP measurement results.
2)终端设备选择最近一次使用的传输路径或传输承载作为默认的传输路径2) The terminal device selects the last used transmission path or transport bearer as the default transmission path.
3)终端设备根据业务类型选择默认的传输路径或传输承载，需要将业务类型与传输路径或传输承载绑定。3) The terminal device selects a default transmission path or transmission bearer according to the service type, and needs to bind the service type to the transmission path or the transmission bearer.
4)终端设备设置选择SRB作为默认的传输路径或传输承载。4) Terminal device settings Select SRB as the default transmission path or transport bearer.
这样，能够确保终端设备在PDN连接建立之前到来的业务数据在合适的传输路径或传输承载上进行传输，使得业务数据的性能得到保障。In this way, it is ensured that the service data that the terminal device arrives before the establishment of the PDN connection is transmitted on the appropriate transmission path or the transmission bearer, so that the performance of the service data is guaranteed.
基于以上实施例，本申请实施例提供一种数据传输装置，对应于终端设备，用于实现如图3所示的方法，参阅图5所示，一种数据传输装置500包括：处理单元501、接收单元502和发送单元503。Based on the above embodiment, the embodiment of the present application provides a data transmission device, corresponding to the terminal device, for implementing the method shown in FIG. 3. Referring to FIG. 5, a data transmission device 500 includes: a processing unit 501, The receiving unit 502 and the transmitting unit 503.
处理单元501，用于获取配置信息，所述配置信息包括第一流标识以及所述第一流标识对应的数据无线承载的配置信息和直连链路无线承载的配置信息；The processing unit 501 is configured to obtain configuration information, where the configuration information includes a first flow identifier, configuration information of the data radio bearer corresponding to the first flow identifier, and configuration information of the direct link radio bearer.
接收单元502，用于获取业务数据和所述业务数据对应的第二流标识；The receiving unit 502 is configured to acquire service data and a second flow identifier corresponding to the service data.
所述处理单元501，还用于根据所述第一流标识、所述第二流标识、所述第一流标识对应的数据无线承载的配置信息和直连链路无线承载的配置信息选择相应数据无线承载与直连链路无线承载中的至少一个作为目标无线承载；The processing unit 501 is further configured to select, according to the first flow identifier, the second flow identifier, configuration information of a data radio bearer corresponding to the first flow identifier, and configuration information of a radio link of a direct link, selecting a corresponding data wireless. Carrying at least one of a bearer and a direct link radio bearer as a target radio bearer;
发送单元503，用于在所述目标无线承载上传输所述业务数据。The sending unit 503 is configured to transmit the service data on the target radio bearer.
可选的，所述处理单元501具体用于：Optionally, the processing unit 501 is specifically configured to:
当所述第二流标识与所述第一流标识相同时，选择所述数据无线承载与所述直连链路无线承载中的至少一个作为目标无线承载。And when the second flow identifier is the same as the first flow identifier, selecting at least one of the data radio bearer and the direct link radio bearer as a target radio bearer.
可选的，所述处理单元501具体用于：获取预设门限配置信息，所述预设门限配置信息包括第一预设门限与第二预设门限中的至少一个，根据测量结果和所述预设门限配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，所述第一预设门限包括至少一个信道负载预设门限；所述第二预设门限包括至少一个信号强度预设门限；所述测量结果包括信道负载测量结果和信号强度测量结果中的至少一个；或Optionally, the processing unit 501 is configured to: obtain preset threshold configuration information, where the preset threshold configuration information includes at least one of a first preset threshold and a second preset threshold, according to the measurement result and the The preset threshold configuration information selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer, where the first preset threshold includes at least one channel load preset threshold; the second pre- Setting a threshold to include at least one signal strength preset threshold; the measurement result including at least one of a channel load measurement result and a signal strength measurement result; or
获取业务特性配置信息，所述处理单元501具体用于：根据所述业务特性配置信息和所述业务数据的业务特性选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或Obtaining the service characteristic configuration information, the processing unit 501 is specifically configured to: select at least one of the data radio bearer and the direct link radio bearer according to the service characteristic configuration information and the service characteristic of the service data Target radio bearer; or
从网络设备获取目标无线承载配置信息，根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Obtaining target radio bearer configuration information from the network device, and selecting at least one of the data radio bearer and the direct link radio bearer as the target radio bearer according to the target radio bearer configuration information.
可选的，所述处理单元501具体用于：Optionally, the processing unit 501 is specifically configured to:
根据所述至少一个信道负载预设门限和所述至少一个信道负载测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或Selecting at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the at least one channel load preset threshold and the at least one channel load measurement result; or
根据所述至少一个信号强度预设门限和所述至少一个信号强度测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或Selecting at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the at least one signal strength preset threshold and the at least one signal strength measurement result; or
根据所述至少一个信道负载预设门限、所述至少一个信号强度预设门限、所述至少一个信道负载测量结果和所述至少一个信号强度测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Selecting the data radio bearer and the direct link according to the at least one channel load preset threshold, the at least one signal strength preset threshold, the at least one channel load measurement result, and the at least one signal strength measurement result At least one of the path radio bearers acts as a target radio bearer.
可选的，所述处理单元501具体用于：获取业务特性配置信息，所述业务特性配置信息包括第一业务特性和所述第一业务特性对应的目标无线承载配置信息；获取所述业务数据对应的第二业务特性；根据所述第二业务特性和所述业务特性配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；Optionally, the processing unit 501 is specifically configured to: obtain service characteristic configuration information, where the service feature configuration information includes a first service feature and target radio bearer configuration information corresponding to the first service feature; and acquiring the service data. Corresponding second service characteristic; selecting at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the second service characteristic and the service characteristic configuration information;
其中，业务特性包括优先级、业务类型、源标识、目的标识、时延、可靠性、速度中的至少一个。The service feature includes at least one of a priority, a service type, a source identifier, a destination identifier, a delay, a reliability, and a speed.
可选的，所述处理单元501具体用于：Optionally, the processing unit 501 is specifically configured to:
获取所述测量结果，通过所述发送单元503将所述测量结果上报给所述网络设备，通过所述接收单元502从所述网络设备获取目标无线承载配置信息，根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或Obtaining the measurement result, and reporting, by the sending unit 503, the measurement result to the network device, and acquiring, by the receiving unit 502, target radio bearer configuration information from the network device, according to the target radio bearer configuration information. Selecting at least one of the data radio bearer and the direct link radio bearer as a target radio bearer; or
获取所述测量结果，根据所述测量结果和所述预设门限配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，通过所述发送单元503将所述选择的目标无线承载或目标无线承载配置信息上报给所述网络设备，通过所述接收单元502从所述网络设备获取所述目标无线承载配置信息，根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Obtaining the measurement result, selecting at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the measurement result and the preset threshold configuration information, by using the sending unit 503 And the selected target radio bearer or target radio bearer configuration information is reported to the network device, and the target radio bearer configuration information is obtained from the network device by using the receiving unit 502, and the selected radio bearer configuration information is selected according to the target radio bearer configuration information. At least one of the data radio bearer and the direct link radio bearer is referred to as a target radio bearer.
可选的，所述处理单元501从网络设备获取目标无线承载配置信息时，具体用于：Optionally, when the processing unit 501 acquires the target radio bearer configuration information from the network device, specifically:
通过无线资源控制RRC信令获取所述网络设备发送的目标无线承载配置信息；或Acquiring, by using radio resource control RRC signaling, target radio bearer configuration information sent by the network device; or
通过服务数据适配协议SDAP协议数据单元PDU头中的字段获取所述网络设备发送的目标无线承载配置信息；或Obtaining target radio bearer configuration information sent by the network device by using a field in a service data adaptation protocol SDAP protocol data unit PDU header; or
通过媒体介入控制控制元素MAC CE信令获取所述网络设备发送的目标无线承载配置信息；或Obtaining target radio bearer configuration information sent by the network device by using a media intervention control element MAC CE signaling; or
通过下行控制信息DCI获取所述网络设备发送的目标无线承载配置信息。Obtaining target radio bearer configuration information sent by the network device by using downlink control information DCI.
可选的，所述处理单元501选择所述数据无线承载与所述直连链路无线承载中的至少一个作为目标无线承载时，具体用于：Optionally, when the processing unit 501 selects at least one of the data radio bearer and the direct link radio bearer as the target radio bearer, specifically:
通过所述终端设备的第一协议层获取所述测量结果，并根据所述测量结果选择目标无线承载，利用所述终端设备的第一协议层在所述目标无线承载上传输业务数据；或Obtaining, by the first protocol layer of the terminal device, the measurement result, and selecting a target radio bearer according to the measurement result, and transmitting, by using a first protocol layer of the terminal device, service data on the target radio bearer; or
通过所述终端设备的第二协议层获取所述测量结果，并根据所述测量结果选择目标无线承载，利用所述终端设备的第一协议层在所述目标无线承载上传输业务数据，其中,所述第一协议层是SDAP层；或所述第一协议层是RRC层、分组数据汇聚协议PDCP层、无线连接控制RLC层和MAC层中的一个；所述第二协议层是RRC层或MAC层，或所述第二协议层是SDAP层、PDCP层、RCL层和物理PHY层的一个。Acquiring the measurement result by using the second protocol layer of the terminal device, and selecting a target radio bearer according to the measurement result, and transmitting the service data on the target radio bearer by using the first protocol layer of the terminal device, where The first protocol layer is an SDAP layer; or the first protocol layer is one of an RRC layer, a packet data convergence protocol PDCP layer, a radio connection control RLC layer, and a MAC layer; the second protocol layer is an RRC layer or The MAC layer, or the second protocol layer, is one of a SDAP layer, a PDCP layer, an RCL layer, and a physical PHY layer.
可选的，所述至少一个信道负载预设门限，包括：第一信道负载预设门限；或所述至 少一个信道负载预设门限包括第一信道负载预设门限和第二信道负载预设门限；Optionally, the at least one channel load preset threshold includes: a first channel load preset threshold; or the at least one channel load preset threshold includes a first channel load preset threshold and a second channel load preset threshold ;
所述至少一个信号强度预设门限包括第一信号强度预设门限；或The at least one signal strength preset threshold includes a first signal strength preset threshold; or
所述至少一个信号强度预设门限包括第一信号强度预设门限和第二预设信号强度预设门限。The at least one signal strength preset threshold includes a first signal strength preset threshold and a second preset signal strength preset threshold.
可选的，所述处理单元501具体用于：Optionally, the processing unit 501 is specifically configured to:
当所述信道负载测量结果大于或大于等于所述第一信道负载预设门限且/或所述信号强度测量结果大于或大于等于所述第一信号强度预设门限时，选择所述数据无线承载作为目标无线承载；或Selecting the data radio bearer when the channel load measurement result is greater than or equal to the first channel load preset threshold and/or the signal strength measurement result is greater than or equal to the first signal strength preset threshold. As the target radio bearer; or
当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且/或所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，选择所述直连链路无线承载作为目标无线承载；或Selecting the direct link when the channel load measurement result is less than or equal to the first channel load preset threshold and/or the signal strength measurement result is less than or equal to the first signal strength preset threshold The radio bearer is the target radio bearer; or
当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且所述信号强度测量结果大于或大于等于所述第一信号强度预设门限时，所述选择所述数据无线承载或所述直连链路无线承载作为目标无线承载；或Selecting the data radio bearer when the channel load measurement result is less than or equal to the first channel load preset threshold and the signal strength measurement result is greater than or equal to the first signal strength preset threshold. Or the direct link radio bearer is the target radio bearer; or
当所述负载测量结果大于或大于等于所述第一信道负载预设门限且所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，选择所述数据无线承载和所述直连链路无线承载作为目标无线承载；或Selecting the data radio bearer and the data when the load measurement result is greater than or equal to the first channel load preset threshold and the signal strength measurement result is less than or less than the first signal strength preset threshold. Directly connecting the link radio bearer as the target radio bearer; or
当所述信道负载测量结果大于或大于等于所述第二信道负载预设门限且/或所述信号强度测量结果大于或大于等于所述第二信号强度预设门限时，选择所述数据无线承载作为目标无线承载；或Selecting the data radio bearer when the channel load measurement result is greater than or equal to the second channel load preset threshold and/or the signal strength measurement result is greater than or equal to the second signal strength preset threshold. As the target radio bearer; or
当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且/或所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，选择所述直连链路无线承载作为目标无线承载；或Selecting the direct link when the channel load measurement result is less than or equal to the first channel load preset threshold and/or the signal strength measurement result is less than or equal to the first signal strength preset threshold The radio bearer is the target radio bearer; or
当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且所述信号强度测量结果大于或大于等于所述信号强度第二预设门限时，选择所述数据无线承载或所述直连链路无线承载作为目标无线承载；或Selecting the data radio bearer or the channel when the channel load measurement result is less than or equal to the first channel load preset threshold and the signal strength measurement result is greater than or equal to the signal strength second preset threshold. Determining the direct link radio bearer as the target radio bearer; or
当所述信道负载测量结果大于或大于等于所述第二信道负载预设门限且所述信号强度测量结果小于或小于等于所述信号强度第一预设门限时，选择所述数据无线承载和所述直连链路无线承载作为目标无线承载。Selecting the data radio bearer and the channel when the channel load measurement result is greater than or equal to the second channel load preset threshold and the signal strength measurement result is less than or equal to the signal strength first preset threshold. The direct link radio bearer is referred to as a target radio bearer.
应理解以上各个单元的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且这些单元可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分单元以软件通过处理元件调用的形式实现，部分单元以硬件的形式实现。例如处理单元可以为单独设立的处理元件，也可以集成在某一个芯片中实现，此外，也可以以程序的形式存储于存储器中，由某一个处理元件调用并执行该单元的功能。其它单元的实现与之类似。此外这些单元全部或部分可以集成在一起，也可以独立实现。这里所述的处理元件可以是一种集成电路，具有信号的处理能力。在实现过程中，上述方法的各步骤或以上各个单元可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。此外，以上接收单元是一种控制接收的单元，可以通过终端设备或网络设备的接收装置，例如天线和射频装置接收信息。以上发送单元是一种控制发送的单元，可以通过终端设备或网络设备的发送装置，例如天线和射频装置 发送信息。It should be understood that the division of each unit above is only a division of logical functions, and the actual implementation may be integrated into one physical entity in whole or in part, or may be physically separated. Moreover, these units may all be implemented in the form of software by means of processing component calls; or may be implemented entirely in hardware; some units may be implemented in software in the form of processing component calls, and some units may be implemented in hardware. For example, the processing unit may be a separately set processing element, or may be integrated in a certain chip. Alternatively, it may be stored in a memory in the form of a program, and a function of the unit is called and executed by a certain processing element. The implementation of other units is similar. In addition, all or part of these units can be integrated or implemented independently. The processing elements described herein can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above units may be completed by an integrated logic circuit of hardware in the processor element or an instruction in a form of software. In addition, the above receiving unit is a unit for controlling reception, and can receive information through a receiving device of a terminal device or a network device, such as an antenna and a radio frequency device. The above sending unit is a unit for controlling transmission, and can transmit information through a transmitting device of a terminal device or a network device, such as an antenna and a radio frequency device.
例如，以上这些单元可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(application specific integrated circuit，ASIC)，或，一个或多个数字信号处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(field programmable gate array，FPGA)等。再如，当以上某个单元通过处理元件调度程序的形式实现时，该处理元件可以是通用处理器，例如中央处理器(central processing unit，CPU)或其它可以调用程序的处理器。再如，这些单元可以集成在一起，以片上***(system-on-a-chip，SOC)的形式实现。For example, the above units may be one or more integrated circuits configured to implement the above methods, such as one or more application specific integrated circuits (ASICs), or one or more digital signal processors ( Digital signal processor (DSP), or one or more field programmable gate arrays (FPGAs), and the like. As another example, when one of the above units is implemented in the form of a processing component scheduler, the processing element can be a general purpose processor, such as a central processing unit (CPU) or other processor that can invoke the program. As another example, these units can be integrated and implemented in the form of a system-on-a-chip (SOC).
基于以上实施例，本申请还提供了一种终端设备，用于实现图3所示的方法，参阅图6所示，所述终端设备600中包括：接收器601、处理器602、存储器603和发射器604。Based on the above embodiment, the present application further provides a terminal device for implementing the method shown in FIG. 3. Referring to FIG. 6, the terminal device 600 includes: a receiver 601, a processor 602, a memory 603, and Transmitter 604.
所述存储器603，用于存储计算机可执行指令；当处理器802执行所述计算机可执行指令时，使终端设备600执行上述图3所示的方法。The memory 603 is configured to store computer executable instructions; when the processor 802 executes the computer executable instructions, causes the terminal device 600 to perform the method illustrated in FIG. 3 above.
可以理解的，上述图5所示实施例中的数据传输装置可以以图6所示的终端设备600实现。终端设备600的结构并不构成对本申请实施例的限定。It can be understood that the data transmission device in the above embodiment shown in FIG. 5 can be implemented by the terminal device 600 shown in FIG. 6. The structure of the terminal device 600 does not constitute a limitation on the embodiments of the present application.
图6中，处理器602可以是中央处理器(central processing unit，CPU)，网络处理器(network processor，NP)，硬件芯片或者其任意组合。存储器可以包括易失性存储器(volatile memory)，例如随机存取存储器(random access memory，RAM)；存储器也可以包括非易失性存储器(non-volatile memory)，例如只读存储器(read-only memory，ROM)，快闪存储器(flash memory)，硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)；存储器还可以包括上述种类的存储器的组合。In FIG. 6, the processor 602 can be a central processing unit (CPU), a network processor (NP), a hardware chip, or any combination thereof. The memory may include a volatile memory such as a random access memory (RAM); the memory may also include a non-volatile memory such as a read-only memory. , ROM), flash memory, hard disk drive (HDD) or solid-state drive (SSD); the memory may also include a combination of the above types of memory.
本领域内的技术人员应明白，本申请实施例可提供为方法、***、或计算机程序产品。因此，本申请实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Therefore, the embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Moreover, embodiments of the present application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
本申请实施例是参照根据本申请实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。It is apparent that those skilled in the art can make various modifications and variations to the embodiments of the present application without departing from the spirit and scope of the application. Thus, it is intended that the present invention cover the modifications and variations of the embodiments of the present invention.

Claims (24)

  1. 一种数据传输方法，其特征在于，包括：A data transmission method, comprising:
    终端设备获取配置信息，所述配置信息包括第一流标识以及所述第一流标识对应的数据无线承载的配置信息和直连链路无线承载的配置信息；The terminal device acquires configuration information, where the configuration information includes a first flow identifier, configuration information of the data radio bearer corresponding to the first flow identifier, and configuration information of the radio link of the direct link;
    所述终端设备获取业务数据和所述业务数据对应的第二流标识；The terminal device acquires service data and a second flow identifier corresponding to the service data;
    所述终端设备根据所述第一流标识、所述第二流标识、所述第一流标识对应的数据无线承载的配置信息和直连链路无线承载的配置信息选择相应数据无线承载与直连链路无线承载中的至少一个作为目标无线承载；The terminal device selects a corresponding data radio bearer and a direct link according to the first flow identifier, the second flow identifier, the configuration information of the data radio bearer corresponding to the first flow identifier, and the configuration information of the radio link of the direct link. At least one of the path radio bearers is the target radio bearer;
    所述终端设备在所述目标无线承载上传输所述业务数据。The terminal device transmits the service data on the target radio bearer.
  2. 根据权利要求1所述的方法，其特征在于，所述终端设备根据所述第一流标识、所述第二流标识、所述第一流标识对应的数据无线承载的配置信息和直连链路无线承载的配置信息选择相应数据无线承载与直连链路无线承载中的至少一个作为目标无线承载，包括The method according to claim 1, wherein the terminal device according to the first flow identifier, the second flow identifier, configuration information of a data radio bearer corresponding to the first stream identifier, and direct link wireless The configuration information of the bearer selects at least one of the corresponding data radio bearer and the direct link radio bearer as the target radio bearer, including
    当所述第二流标识与所述第一流标识相同时，所述终端设备选择所述数据无线承载与所述直连链路无线承载中的至少一个作为目标无线承载。When the second flow identifier is the same as the first flow identifier, the terminal device selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer.
  3. 根据权利要求2所述的方法，其特征在于，所述终端设备选择所述数据无线承载与所述直连链路无线承载中的至少一个作为目标无线承载，包括：The method according to claim 2, wherein the terminal device selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer, including:
    所述终端设备获取预设门限配置信息，所述预设门限配置信息包括第一预设门限与第二预设门限中的至少一个，所述终端设备根据测量结果和所述预设门限配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，所述第一预设门限包括至少一个信道负载预设门限；所述第二预设门限包括至少一个信号强度预设门限；所述测量结果包括信道负载测量结果和信号强度测量结果中的至少一个；或The terminal device acquires preset threshold configuration information, where the preset threshold configuration information includes at least one of a first preset threshold and a second preset threshold, and the terminal device performs configuration information according to the measurement result and the preset threshold. Selecting at least one of the data radio bearer and the direct link radio bearer as the target radio bearer, the first preset threshold includes at least one channel load preset threshold; and the second preset threshold includes at least one a signal strength preset threshold; the measurement result comprising at least one of a channel load measurement result and a signal strength measurement result; or
    所述终端设备获取业务特性配置信息，所述终端设备根据所述业务特性配置信息和所述业务数据的业务特性选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或The terminal device acquires service characteristic configuration information, and the terminal device selects at least one of the data radio bearer and the direct link radio bearer as a target according to the service characteristic configuration information and the service characteristic of the service data. Wireless bearer; or
    所述终端设备从网络设备获取目标无线承载配置信息，所述终端设备根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。The terminal device acquires target radio bearer configuration information from the network device, and the terminal device selects at least one of the data radio bearer and the direct link radio bearer as the target radio bearer according to the target radio bearer configuration information.
  4. 根据权利要求3所述的方法，其特征在于，所述终端设备根据测量结果和所述预设门限配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，包括：The method according to claim 3, wherein the terminal device selects at least one of the data radio bearer and the direct link radio bearer as a target radio according to the measurement result and the preset threshold configuration information. Hosting, including:
    所述终端设备根据所述至少一个信道负载预设门限和所述至少一个信道负载测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或The terminal device selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the at least one channel load preset threshold and the at least one channel load measurement result; or
    所述终端设备根据所述至少一个信号强度预设门限和所述至少一个信号强度测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或The terminal device selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the at least one signal strength preset threshold and the at least one signal strength measurement result; or
    所述终端设备根据所述至少一个信道负载预设门限、所述至少一个信号强度预设门限、所述至少一个信道负载测量结果和所述至少一个信号强度测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。The terminal device selects the data radio bearer according to the at least one channel load preset threshold, the at least one signal strength preset threshold, the at least one channel load measurement result, and the at least one signal strength measurement result. At least one of the direct link radio bearers is referred to as a target radio bearer.
  5. 根据权利要求3所述的方法，其特征在于，所述终端设备获取业务特性配置信息， 所述终端设备根据所述业务特性配置信息和所述业务数据的业务特性选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，包括：The method according to claim 3, wherein the terminal device acquires service characteristic configuration information, and the terminal device selects the data radio bearer and the service according to the service characteristic configuration information and the service characteristic of the service data. At least one of the direct link radio bearers is used as the target radio bearer, including:
    所述终端设备获取业务特性配置信息，所述业务特性配置信息包括第一业务特性和所述第一业务特性对应的目标无线承载配置信息；The terminal device acquires service characteristic configuration information, where the service feature configuration information includes a first service feature and target radio bearer configuration information corresponding to the first service feature;
    所述终端设备获取所述业务数据对应的第二业务特性；The terminal device acquires a second service characteristic corresponding to the service data;
    所述终端设备根据所述第二业务特性和所述业务特性配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；The terminal device selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the second service characteristic and the service characteristic configuration information;
    其中，业务特性包括优先级、业务类型、源标识、目的标识、时延、可靠性、速度中的至少一个。The service feature includes at least one of a priority, a service type, a source identifier, a destination identifier, a delay, a reliability, and a speed.
  6. 根据权利要求3述的方法，其特征在于，所述终端设备从网络设备获取目标无线承载配置信息，所述终端设备根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，包括：The method according to claim 3, wherein the terminal device acquires target radio bearer configuration information from the network device, and the terminal device selects the data radio bearer and the direct link according to the target radio bearer configuration information. At least one of the radio bearers is a target radio bearer, including:
    所述终端设备获取所述测量结果，将所述测量结果上报给所述网络设备，并从所述网络设备获取目标无线承载配置信息，所述终端设备根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或The terminal device acquires the measurement result, reports the measurement result to the network device, and acquires target radio bearer configuration information from the network device, where the terminal device selects the information according to the target radio bearer configuration information. At least one of a data radio bearer and the direct link radio bearer is a target radio bearer; or
    所述终端设备获取所述测量结果，根据所述测量结果和所述预设门限配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，将所述选择的目标无线承载或目标无线承载配置信息上报给所述网络设备，并从所述网络设备获取所述目标无线承载配置信息，所述终端设备根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。The terminal device acquires the measurement result, and selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the measurement result and the preset threshold configuration information, where The selected target radio bearer or the target radio bearer configuration information is reported to the network device, and the target radio bearer configuration information is obtained from the network device, and the terminal device selects the data radio according to the target radio bearer configuration information. At least one of the bearer and the directly connected link radio bearer acts as a target radio bearer.
  7. 根据权利要求3所述的方法，其特征在于，所述终端设备从网络设备获取目标无线承载配置信息，包括：The method according to claim 3, wherein the acquiring, by the terminal device, the target radio bearer configuration information from the network device comprises:
    所述终端设备通过无线资源控制RRC信令获取所述网络设备发送的目标无线承载配置信息；或Obtaining, by the terminal device, the target radio bearer configuration information sent by the network device by using radio resource control RRC signaling; or
    所述终端设备通过服务数据适配协议SDAP协议数据单元PDU头中的字段获取所述网络设备发送的目标无线承载配置信息；或Obtaining, by the terminal device, the target radio bearer configuration information sent by the network device by using a field in a service data adaptation protocol SDAP protocol data unit PDU header; or
    所述终端设备通过媒体介入控制控制元素MAC CE信令获取所述网络设备发送的目标无线承载配置信息；或Obtaining, by the terminal device, the target radio bearer configuration information sent by the network device by using a media intervention control element MAC CE signaling; or
    所述终端设备通过下行控制信息DCI获取所述网络设备发送的目标无线承载配置信息。The terminal device acquires target radio bearer configuration information sent by the network device by using downlink control information DCI.
  8. 根据权利要求3所述的方法，其特征在于，所述终端设备选择所述数据无线承载与所述直连链路无线承载中的至少一个作为目标无线承载，包括：The method according to claim 3, wherein the terminal device selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer, including:
    所述终端设备的第一协议层获取所述测量结果，并根据所述测量结果选择目标无线承载，所述终端设备的第一协议层在所述目标无线承载上传输业务数据；或Obtaining, by the first protocol layer of the terminal device, the measurement result, and selecting a target radio bearer according to the measurement result, where the first protocol layer of the terminal device transmits service data on the target radio bearer; or
    所述终端设备的第二协议层获取所述测量结果，并根据所述测量结果选择目标无线承载，所述终端设备的第一协议层在所述目标无线承载上传输业务数据，其中,所述第一协议层是SDAP层；或所述第一协议层是RRC层、分组数据汇聚协议PDCP层、无线连接控制RLC层和MAC层中的一个；所述第二协议层是RRC层或MAC层，或所述第二协议层是SDAP层、PDCP层、RCL层和物理PHY层的一个。The second protocol layer of the terminal device acquires the measurement result, and selects a target radio bearer according to the measurement result, where the first protocol layer of the terminal device transmits service data on the target radio bearer, where the The first protocol layer is an SDAP layer; or the first protocol layer is one of an RRC layer, a packet data convergence protocol PDCP layer, a radio connection control RLC layer, and a MAC layer; the second protocol layer is an RRC layer or a MAC layer. Or the second protocol layer is one of a SDAP layer, a PDCP layer, an RCL layer, and a physical PHY layer.
  9. 根据权利要求3所述的方法，其特征在于，所述至少一个信道负载预设门限，包括：第一信道负载预设门限；或所述至少一个信道负载预设门限包括第一信道负载预设门 限和第二信道负载预设门限；The method according to claim 3, wherein the at least one channel load preset threshold comprises: a first channel load preset threshold; or the at least one channel load preset threshold comprises a first channel load preset Threshold and second channel load preset threshold;
    所述至少一个信号强度预设门限包括第一信号强度预设门限；或The at least one signal strength preset threshold includes a first signal strength preset threshold; or
    所述至少一个信号强度预设门限包括第一信号强度预设门限和第二预设信号强度预设门限。The at least one signal strength preset threshold includes a first signal strength preset threshold and a second preset signal strength preset threshold.
  10. 根据权利要求9所述的方法，其特征在于，所述终端设备根据所述至少一个信道负载预设门限、所述至少一个信号强度预设门限、所述至少一个信道负载测量结果和所述至少一个信号强度测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，包括：The method according to claim 9, wherein the terminal device presets a threshold according to the at least one channel load, the at least one signal strength preset threshold, the at least one channel load measurement result, and the at least A signal strength measurement result selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer, including:
    当所述信道负载测量结果大于或大于等于所述第一信道负载预设门限且/或所述信号强度测量结果大于或大于等于所述第一信号强度预设门限时，所述终端设备选择所述数据无线承载作为目标无线承载；或When the channel load measurement result is greater than or equal to the first channel load preset threshold and/or the signal strength measurement result is greater than or equal to the first signal strength preset threshold, the terminal device selects Determining the data radio bearer as the target radio bearer; or
    当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且/或所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，所述终端设备选择所述直连链路无线承载作为目标无线承载；或When the channel load measurement result is less than or equal to the first channel load preset threshold and/or the signal strength measurement result is less than or equal to the first signal strength preset threshold, the terminal device selects Determining the direct link radio bearer as the target radio bearer; or
    当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且所述信号强度测量结果大于或大于等于所述第一信号强度预设门限时，所述终端设备选择所述数据无线承载或所述直连链路无线承载作为目标无线承载；或The terminal device selects the data when the channel load measurement result is less than or equal to the first channel load preset threshold and the signal strength measurement result is greater than or equal to the first signal strength preset threshold. a radio bearer or the direct link radio bearer as a target radio bearer; or
    当所述负载测量结果大于或大于等于所述第一信道负载预设门限且所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，选择所述数据无线承载和所述直连链路无线承载作为目标无线承载；或Selecting the data radio bearer and the data when the load measurement result is greater than or equal to the first channel load preset threshold and the signal strength measurement result is less than or less than the first signal strength preset threshold. Directly connecting the link radio bearer as the target radio bearer; or
    当所述信道负载测量结果大于或大于等于所述第二信道负载预设门限且/或所述信号强度测量结果大于或大于等于所述第二信号强度预设门限时，所述终端设备选择所述数据无线承载作为目标无线承载；或When the channel load measurement result is greater than or equal to the second channel load preset threshold and/or the signal strength measurement result is greater than or equal to the second signal strength preset threshold, the terminal device selects Determining the data radio bearer as the target radio bearer; or
    当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且/或所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，所述终端设备选择所述直连链路无线承载作为目标无线承载；或When the channel load measurement result is less than or equal to the first channel load preset threshold and/or the signal strength measurement result is less than or equal to the first signal strength preset threshold, the terminal device selects Determining the direct link radio bearer as the target radio bearer; or
    当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且所述信号强度测量结果大于或大于等于所述信号强度第二预设门限时，所述终端设备选择所述数据无线承载或所述直连链路无线承载作为目标无线承载；或The terminal device selects the data when the channel load measurement result is less than or equal to the first channel load preset threshold and the signal strength measurement result is greater than or equal to the signal strength second preset threshold. a radio bearer or the direct link radio bearer as a target radio bearer; or
    当所述信道负载测量结果大于或大于等于所述第二信道负载预设门限且所述信号强度测量结果小于或小于等于所述信号强度第一预设门限时，所述终端设备选择所述数据无线承载和所述直连链路无线承载作为目标无线承载。The terminal device selects the data when the channel load measurement result is greater than or equal to the second channel load preset threshold and the signal strength measurement result is less than or equal to the signal strength first preset threshold. The radio bearer and the direct link radio bearer are the target radio bearers.
  11. 一种数据传输装置，应用于终端设备，其特征在于，包括：A data transmission device is applied to a terminal device, and includes:
    处理单元，用于获取配置信息，所述配置信息包括第一流标识以及所述第一流标识对应的数据无线承载的配置信息和直连链路无线承载的配置信息；a processing unit, configured to acquire configuration information, where the configuration information includes a first flow identifier, configuration information of a data radio bearer corresponding to the first flow identifier, and configuration information of a radio link of a direct link;
    接收单元，用于获取业务数据和所述业务数据对应的第二流标识；a receiving unit, configured to acquire service data and a second stream identifier corresponding to the service data;
    所述处理单元，还用于根据所述第一流标识、所述第二流标识、所述第一流标识对应的数据无线承载的配置信息和直连链路无线承载的配置信息选择相应数据无线承载与直连链路无线承载中的至少一个作为目标无线承载；The processing unit is further configured to select a corresponding data radio bearer according to the first flow identifier, the second flow identifier, configuration information of a data radio bearer corresponding to the first flow identifier, and configuration information of a radio link of a direct link And at least one of the direct link radio bearers being the target radio bearer;
    发送单元，用于在所述目标无线承载上传输所述业务数据。And a sending unit, configured to transmit the service data on the target radio bearer.
  12. 根据权利要求11所述的装置，其特征在于，所述处理单元具体用于：The device according to claim 11, wherein the processing unit is specifically configured to:
    当所述第二流标识与所述第一流标识相同时，选择所述数据无线承载与所述直连链路无线承载中的至少一个作为目标无线承载。And when the second flow identifier is the same as the first flow identifier, selecting at least one of the data radio bearer and the direct link radio bearer as a target radio bearer.
  13. 根据权利要求12所述的装置，其特征在于，所述处理单元具体用于：获取预设门限配置信息，所述预设门限配置信息包括第一预设门限与第二预设门限中的至少一个，根据测量结果和所述预设门限配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，所述第一预设门限包括至少一个信道负载预设门限；所述第二预设门限包括至少一个信号强度预设门限；所述测量结果包括信道负载测量结果和信号强度测量结果中的至少一个；或The device according to claim 12, wherein the processing unit is configured to: acquire preset threshold configuration information, where the preset threshold configuration information includes at least one of a first preset threshold and a second preset threshold. And selecting, according to the measurement result and the preset threshold configuration information, at least one of the data radio bearer and the direct link radio bearer as a target radio bearer, where the first preset threshold includes at least one channel load pre Setting a threshold; the second preset threshold includes at least one signal strength preset threshold; the measurement result includes at least one of a channel load measurement result and a signal strength measurement result; or
    获取业务特性配置信息，所述处理单元具体用于：根据所述业务特性配置信息和所述业务数据的业务特性选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或Obtaining service characteristic configuration information, where the processing unit is configured to: select at least one of the data radio bearer and the direct link radio bearer as a target according to the service characteristic configuration information and the service characteristic of the service data Wireless bearer; or
    从网络设备获取目标无线承载配置信息，根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Obtaining target radio bearer configuration information from the network device, and selecting at least one of the data radio bearer and the direct link radio bearer as the target radio bearer according to the target radio bearer configuration information.
  14. 根据权利要求13所述的装置，其特征在于，所述处理单元具体用于：The device according to claim 13, wherein the processing unit is specifically configured to:
    根据所述至少一个信道负载预设门限和所述至少一个信道负载测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或Selecting at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the at least one channel load preset threshold and the at least one channel load measurement result; or
    根据所述至少一个信号强度预设门限和所述至少一个信号强度测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或Selecting at least one of the data radio bearer and the direct link radio bearer as a target radio bearer according to the at least one signal strength preset threshold and the at least one signal strength measurement result; or
    根据所述至少一个信道负载预设门限、所述至少一个信号强度预设门限、所述至少一个信道负载测量结果和所述至少一个信号强度测量结果选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Selecting the data radio bearer and the direct link according to the at least one channel load preset threshold, the at least one signal strength preset threshold, the at least one channel load measurement result, and the at least one signal strength measurement result At least one of the path radio bearers acts as a target radio bearer.
  15. 根据权利要求13所述的装置，其特征在于，所述处理单元具体用于：获取业务特性配置信息，所述业务特性配置信息包括第一业务特性和所述第一业务特性对应的目标无线承载配置信息；获取所述业务数据对应的第二业务特性；根据所述第二业务特性和所述业务特性配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；The device according to claim 13, wherein the processing unit is configured to: obtain service characteristic configuration information, where the service feature configuration information includes a first service feature and a target radio bearer corresponding to the first service feature. Configuring information, acquiring a second service characteristic corresponding to the service data, and selecting at least one of the data radio bearer and the direct link radio bearer as a target according to the second service characteristic and the service characteristic configuration information Radio bearer
    其中，业务特性包括优先级、业务类型、源标识、目的标识、时延、可靠性、速度中的至少一个。The service feature includes at least one of a priority, a service type, a source identifier, a destination identifier, a delay, a reliability, and a speed.
  16. 根据权利要求13述的装置，其特征在于，所述处理单元具体用于：The device according to claim 13, wherein the processing unit is specifically configured to:
    获取所述测量结果，通过所述发送单元将所述测量结果上报给所述网络设备，通过所述接收单元从所述网络设备获取目标无线承载配置信息，根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载；或Acquiring the measurement result, reporting the measurement result to the network device by using the sending unit, acquiring target radio bearer configuration information from the network device by using the receiving unit, and selecting the location according to the target radio bearer configuration information Determining at least one of a data radio bearer and the direct link radio bearer as a target radio bearer; or
    获取所述测量结果，根据所述测量结果和所述预设门限配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载，通过所述发送单元将所述选择的目标无线承载或目标无线承载配置信息上报给所述网络设备，通过所述接收单元从所述网络设备获取所述目标无线承载配置信息，根据所述目标无线承载配置信息选择所述数据无线承载和所述直连链路无线承载中的至少一个作为目标无线承载。Acquiring the measurement result, selecting at least one of the data radio bearer and the direct link radio bearer as the target radio bearer according to the measurement result and the preset threshold configuration information, where the sending unit The selected target radio bearer or target radio bearer configuration information is reported to the network device, and the target radio bearer configuration information is obtained from the network device by the receiving unit, and the data is selected according to the target radio bearer configuration information. At least one of a radio bearer and the direct link radio bearer is a target radio bearer.
  17. 根据权利要求13所述的装置，其特征在于，所述处理单元从网络设备获取目标无线承载配置信息时，具体用于：The device according to claim 13, wherein the processing unit is configured to: when acquiring the target radio bearer configuration information from the network device, specifically:
    通过无线资源控制RRC信令获取所述网络设备发送的目标无线承载配置信息；或Acquiring, by using radio resource control RRC signaling, target radio bearer configuration information sent by the network device; or
    通过服务数据适配协议SDAP协议数据单元PDU头中的字段获取所述网络设备发送的目标无线承载配置信息；或Obtaining target radio bearer configuration information sent by the network device by using a field in a service data adaptation protocol SDAP protocol data unit PDU header; or
    通过媒体介入控制控制元素MAC CE信令获取所述网络设备发送的目标无线承载配置信息；或Obtaining target radio bearer configuration information sent by the network device by using a media intervention control element MAC CE signaling; or
    通过下行控制信息DCI获取所述网络设备发送的目标无线承载配置信息。Obtaining target radio bearer configuration information sent by the network device by using downlink control information DCI.
  18. 根据权利要求13所述的装置，其特征在于，所述处理单元选择所述数据无线承载与所述直连链路无线承载中的至少一个作为目标无线承载时，具体用于：The apparatus according to claim 13, wherein when the processing unit selects at least one of the data radio bearer and the direct link radio bearer as a target radio bearer, specifically:
    通过所述终端设备的第一协议层获取所述测量结果，并根据所述测量结果选择目标无线承载，利用所述终端设备的第一协议层在所述目标无线承载上传输业务数据；或Obtaining, by the first protocol layer of the terminal device, the measurement result, and selecting a target radio bearer according to the measurement result, and transmitting, by using a first protocol layer of the terminal device, service data on the target radio bearer; or
    通过所述终端设备的第二协议层获取所述测量结果，并根据所述测量结果选择目标无线承载，利用所述终端设备的第一协议层在所述目标无线承载上传输业务数据，其中,所述第一协议层是SDAP层；或所述第一协议层是RRC层、分组数据汇聚协议PDCP层、无线连接控制RLC层和MAC层中的一个；所述第二协议层是RRC层或MAC层，或所述第二协议层是SDAP层、PDCP层、RCL层和物理PHY层的一个。Acquiring the measurement result by using the second protocol layer of the terminal device, and selecting a target radio bearer according to the measurement result, and transmitting the service data on the target radio bearer by using the first protocol layer of the terminal device, where The first protocol layer is an SDAP layer; or the first protocol layer is one of an RRC layer, a packet data convergence protocol PDCP layer, a radio connection control RLC layer, and a MAC layer; the second protocol layer is an RRC layer or The MAC layer, or the second protocol layer, is one of a SDAP layer, a PDCP layer, an RCL layer, and a physical PHY layer.
  19. 根据权利要求13所述的装置，其特征在于，所述至少一个信道负载预设门限，包括：第一信道负载预设门限；或所述至少一个信道负载预设门限包括第一信道负载预设门限和第二信道负载预设门限；The apparatus according to claim 13, wherein the at least one channel load preset threshold comprises: a first channel load preset threshold; or the at least one channel load preset threshold comprises a first channel load preset Threshold and second channel load preset threshold;
    所述至少一个信号强度预设门限包括第一信号强度预设门限；或The at least one signal strength preset threshold includes a first signal strength preset threshold; or
    所述至少一个信号强度预设门限包括第一信号强度预设门限和第二预设信号强度预设门限。The at least one signal strength preset threshold includes a first signal strength preset threshold and a second preset signal strength preset threshold.
  20. 根据权利要求19所述的装置，其特征在于，所述处理单元具体用于：The device according to claim 19, wherein the processing unit is specifically configured to:
    当所述信道负载测量结果大于或大于等于所述第一信道负载预设门限且/或所述信号强度测量结果大于或大于等于所述第一信号强度预设门限时，选择所述数据无线承载作为目标无线承载；或Selecting the data radio bearer when the channel load measurement result is greater than or equal to the first channel load preset threshold and/or the signal strength measurement result is greater than or equal to the first signal strength preset threshold. As the target radio bearer; or
    当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且/或所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，选择所述直连链路无线承载作为目标无线承载；或Selecting the direct link when the channel load measurement result is less than or equal to the first channel load preset threshold and/or the signal strength measurement result is less than or equal to the first signal strength preset threshold The radio bearer is the target radio bearer; or
    当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且所述信号强度测量结果大于或大于等于所述第一信号强度预设门限时，所述选择所述数据无线承载或所述直连链路无线承载作为目标无线承载；或Selecting the data radio bearer when the channel load measurement result is less than or equal to the first channel load preset threshold and the signal strength measurement result is greater than or equal to the first signal strength preset threshold. Or the direct link radio bearer is the target radio bearer; or
    当所述负载测量结果大于或大于等于所述第一信道负载预设门限且所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，选择所述数据无线承载和所述直连链路无线承载作为目标无线承载；或Selecting the data radio bearer and the data when the load measurement result is greater than or equal to the first channel load preset threshold and the signal strength measurement result is less than or less than the first signal strength preset threshold. Directly connecting the link radio bearer as the target radio bearer; or
    当所述信道负载测量结果大于或大于等于所述第二信道负载预设门限且/或所述信号强度测量结果大于或大于等于所述第二信号强度预设门限时，选择所述数据无线承载作为目标无线承载；或Selecting the data radio bearer when the channel load measurement result is greater than or equal to the second channel load preset threshold and/or the signal strength measurement result is greater than or equal to the second signal strength preset threshold. As the target radio bearer; or
    当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且/或所述信号强度测量结果小于或小于等于所述第一信号强度预设门限时，选择所述直连链路无线承载作为目标无线承载；或Selecting the direct link when the channel load measurement result is less than or equal to the first channel load preset threshold and/or the signal strength measurement result is less than or equal to the first signal strength preset threshold The radio bearer is the target radio bearer; or
    当所述信道负载测量结果小于或小于等于所述第一信道负载预设门限且所述信号强度测量结果大于或大于等于所述信号强度第二预设门限时，选择所述数据无线承载或所述直连链路无线承载作为目标无线承载；或Selecting the data radio bearer or the channel when the channel load measurement result is less than or equal to the first channel load preset threshold and the signal strength measurement result is greater than or equal to the signal strength second preset threshold. Determining the direct link radio bearer as the target radio bearer; or
    当所述信道负载测量结果大于或大于等于所述第二信道负载预设门限且所述信号强度测量结果小于或小于等于所述信号强度第一预设门限时，选择所述数据无线承载和所述直连链路无线承载作为目标无线承载。Selecting the data radio bearer and the channel when the channel load measurement result is greater than or equal to the second channel load preset threshold and the signal strength measurement result is less than or equal to the signal strength first preset threshold. The direct link radio bearer is referred to as a target radio bearer.
  21. 一种计算机程序产品，其特征在于，当所述计算机程序产品运行时，以执行如权利要求1-10任一项所述的方法。A computer program product, wherein the computer program product is operative to perform the method of any of claims 1-10.
  22. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质具有计算机程序，当所述计算机程序被执行时，以进行如权利要求1-10任一项所述的方法。A computer readable storage medium, characterized in that the computer readable storage medium has a computer program for performing the method of any of claims 1-10 when the computer program is executed.
  23. 一种***芯片，其特征在于，所述***芯片用于执行计算机程序，以进行如权利要求1-10任一项所述的方法。A system chip, characterized in that the system chip is used to execute a computer program for performing the method of any of claims 1-10.
  24. 一种通信***，其特征在于，所述通信***包括如下中任一种或多种：A communication system, characterized in that the communication system comprises any one or more of the following:
    如权利要求11-20中任一所述的装置；A device according to any of claims 11-20;
    如权利要求21所述的计算机程序产品；A computer program product according to claim 21;
    如权利要求22所述的计算机可读存储介质；或者，A computer readable storage medium as claimed in claim 22; or
    如权利要求23所述的***芯片。The system chip of claim 23.
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