WO2018127057A1 - 数据传输方法及装置 - Google Patents

数据传输方法及装置 Download PDF

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Publication number
WO2018127057A1
WO2018127057A1 PCT/CN2018/071244 CN2018071244W WO2018127057A1 WO 2018127057 A1 WO2018127057 A1 WO 2018127057A1 CN 2018071244 W CN2018071244 W CN 2018071244W WO 2018127057 A1 WO2018127057 A1 WO 2018127057A1
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WIPO (PCT)
Prior art keywords
access device
wireless access
indication information
processing operation
data
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PCT/CN2018/071244
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English (en)
French (fr)
Inventor
刘菁
王婷婷
戴明增
张宏平
曾清海
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to BR112019013841A priority Critical patent/BR112019013841A2/pt
Priority to JP2019536493A priority patent/JP6912118B2/ja
Priority to CA3049289A priority patent/CA3049289C/en
Priority to EP18736403.9A priority patent/EP3567895B1/en
Publication of WO2018127057A1 publication Critical patent/WO2018127057A1/zh
Priority to US16/503,180 priority patent/US11363472B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath
    • H04L45/245—Link aggregation, e.g. trunking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • 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
    • H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
    • H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • 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
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/34—Flow control; Congestion control ensuring sequence integrity, e.g. using sequence numbers
    • 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
    • H04W28/0215—Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices
    • 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
    • H04W28/0278—Traffic management, e.g. flow control or congestion control using buffer status reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a data transmission method and apparatus.
  • a Dual Connectivity (DC) scenario is introduced in the 3rd Generation Partnership Project (3GPP) Release 12 (Release 12; R12), that is, user equipment (User Equipment; UE) is simultaneously connected to an Acer A station (Macro eNode B; MeNB) and a micro base station (Small eNode B; SeNB) perform data transmission with two base stations at the same time.
  • 3GPP 3rd Generation Partnership Project
  • the UE in the control plane, the UE establishes a Signaling Radio Bearer (SRB) with the MeNB; in the user plane, the UE establishes a Data Radio Bearer (DRB) with the MeNB and the SeNB, respectively.
  • the DRB includes a DRB secondary cell group bearer and a DRB split bearer.
  • the secondary cell group bearer refers to all the data on the Evolved Packet System (EPS) bearer corresponding to the user flows to the SeNB.
  • EPS Evolved Packet System
  • the offloaded bearer means that the MeNB removes part of the data on a certain EPS bearer corresponding to the user from the MeNB, and part of the data is offloaded to the SeNB.
  • the 5G system introduces Ultra Reliable Low Latency Communications (URLLC).
  • URLLC Ultra Reliable Low Latency Communications
  • the data transmission delay is less than 0.5ms and the data transmission success rate is greater than or equal to 99.99%.
  • the existing data transmission scheme cannot meet the requirements of the URLLC service.
  • the present application provides a data transmission method and apparatus.
  • the first aspect provides a data transmission method, the method includes: receiving, by the UE, first indication information that is sent by the wireless access device, where the first indication information is activation indication information or deactivation indication information, and the activation indication information is used to indicate the UE Performing a processing operation, the deactivation indication information is used to instruct the UE to stop the processing operation, and the processing operation includes at least one of a multiplexing operation and a transformation operation; when the first indication information is the activation indication information, the UE performs a processing operation; when the first When the indication information is the deactivation indication information, the UE stops the processing operation; wherein the multiplexing operation refers to transmitting the same data through multiple links; the transform operation refers to selecting one link from multiple links for data transmission.
  • the UE When the UE performs the multiplexing operation, the UE transmits the same data through multiple links, so that the reliability of the data transmission can be improved through the links with better link signal quality among the multiple links; when the UE performs the transform operation When the UE selects one link from multiple links for data transmission, since the quality of the selected link is generally good, the reliability of the data transmission can also be improved; thereby solving the existing data single link transmission.
  • the problem of high reliability of URLLC cannot be guaranteed to meet the needs of the URLLC service.
  • the wireless access device When the processing operation is not required to be performed, the wireless access device sends a deactivation indication information to the UE to instruct the UE to stop the processing operation, thereby saving additional resource overhead caused by transmitting data through the processing operation.
  • the method further includes: receiving, by the UE, an execution condition sent by the radio access device, where the execution condition is used by the UE to determine whether to perform a processing operation; The method includes: when the UE satisfies the execution condition, the UE performs a processing operation.
  • the UE receives the first threshold value sent by the radio access device; at this time, the UE performs a processing operation, where the UE determines the data volume of the uplink data to be sent; When the amount of data is less than the first threshold, the UE performs a multiplexing operation; when the amount of data is greater than the first threshold, the UE performs a transform operation; or, when the amount of data is greater than the first threshold, the UE performs a multiplexing operation. When the amount of data is less than the first threshold, the UE performs a transform operation.
  • the method further includes: receiving, by the UE, second indication information that is sent by the wireless access device, where the second indication information is used to indicate the SRB based on the link establishment and/or based on The DRB of the link is established, and the second indication information is bound to the first indication information.
  • the UE performs a processing operation, including: when the second indication information is used to indicate the SRB, the UE selects a link corresponding to the SRB to perform a processing operation.
  • the second indication information is used to indicate the DRB
  • the UE selects a link corresponding to the DRB to perform a processing operation.
  • the method further includes: receiving, by the UE, a DRB identifier sent by the wireless access device;
  • the corresponding link performs processing operations, including: the UE selects a link corresponding to the DRB indicated by the DRB identifier to perform a processing operation.
  • the DRB identifier is bound to the first indication information.
  • the UE further receives a link execution processing operation corresponding to the SRB indicated by the SRB identifier selected by the SRB identifier sent by the primary radio access device.
  • the SRB identifier is bound to the first indication information.
  • the method before the UE receives the first indication information sent by the radio access device, the method further includes: the UE sending the capability information of the UE to the primary radio access device, where the capability information is used to indicate Whether the UE supports processing operations.
  • the UE sends the capability information to the radio access device to indicate whether it supports the processing operation. After determining that the UE supports the processing operation, the radio access device sends the first indication information to the UE, so as to avoid sending the UE to the UE when the UE does not support the processing operation. The waste of resources caused by the first indication information.
  • the method further includes: the UE receiving the cell identity information sent by the primary radio access device, determining the serving cell indicated by the cell identity information as the serving cell performing the multiplexing operation; or receiving the wireless connection by the UE Entering a number of cells sent by the device and a second threshold, selecting a serving cell whose link signal quality is greater than the second threshold as the serving cell performing the multiplexing operation, and the total number of all selected serving cells does not exceed the number of cells;
  • the UE determines that the serving cell that sends the downlink data to the UE is the serving cell that performs the multiplexing operation.
  • Selecting a serving cell whose link signal quality is greater than the second threshold as the serving cell performing the multiplexing operation can further improve the reliability of data transmission.
  • the method when the wireless access device is applied to a DC scenario or multiple connections
  • the method further includes: the UE receiving the secondary wireless access device identification information sent by the primary wireless access device, and the secondary wireless access The secondary wireless access device indicated by the device identification information is determined as the wireless access device performing the multiplexing operation; or the UE receives the number of the wireless access device and the third threshold value sent by the primary wireless access device, and selects the link signal.
  • a wireless access device with a quality greater than the third threshold is used as a wireless access device for multiplexing operation, and the total number of all selected wireless access devices does not exceed the number of wireless access devices; or, the UE will send a downlink to the UE.
  • the wireless access device of the data is determined to be a wireless access device that performs the multiplexing operation.
  • Selecting the wireless access device with the link signal quality greater than the third threshold as the wireless access device performing the multiplexing operation can further improve the reliability of data transmission.
  • the method when performing the multiplexing operation, further includes: the UE separately to the primary wireless access device and each The secondary wireless access device sends a first Buffer State Reports (BSR), where the first BSR includes the data amount of the Packet Data Convergence Protocol (PDCP) layer of the primary radio access device multiplied by the execution multiplexing.
  • BSR Buffer State Reports
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • the method when performing the multiplexing operation, further includes: receiving, by the UE, an uplink sent by the wireless access device The uplink (UL) grants the grant, and the wireless access device is the primary wireless access device or one of the secondary wireless access devices; the UE accesses the wireless access device on the uplink resource indicated by the UL grant.
  • the uplink (UL) grants the grant
  • the wireless access device is the primary wireless access device or one of the secondary wireless access devices
  • the UE accesses the wireless access device on the uplink resource indicated by the UL grant.
  • the second BSR includes a product of a PDCP layer of the primary radio access device multiplied by a number of radio access devices performing the multiplexing operation, and a primary radio access device and each of the secondary radio access devices The sum of the data amounts of the RLC layers; or the second BSR includes the sum of the data volume of the PDCP layer of the primary radio access device and the data volume of the RLC layer of each secondary radio access device, and the primary radio access device The minimum of the sum of the data amounts of the PDCP layer and the RLC layer.
  • the method when performing the multiplexing operation, further includes: the UE sending the third to the primary wireless access device
  • the BSR sends a fourth BSR to each of the secondary wireless access devices, where the third BSR includes the sum of the PDCP layer and the RLC layer of the primary wireless access device, and the fourth BSR includes the PDCP layer data of the primary wireless access device.
  • the method when performing the multiplexing operation, further includes: the UE receiving each wireless access device in its own The PDCP protocol data unit (PDU) sent on the link; the UE sends a PDCP status report to the primary radio access device, and when the radio access device includes the primary radio access device, the PDCP status report is used to indicate the main The radio access device notifies the RLC layer of the primary radio access device and the sequence number (SN) corresponding to the PDCP PDU correctly received by the RLC layer of each secondary radio access device performing the multiplexing operation, and stops the PDCP that is correctly received.
  • PDU PDCP protocol data unit
  • ARQ Automatic Repeat ReQuest
  • the UE When performing the multiplexing operation, the UE receives the same PDCP PDU on multiple links, and the UE reports the PDCP status report to the primary wireless access device.
  • the primary wireless access device The PDCP layer needs to notify the RLC layer of the primary radio access device to stop the ARQ of the RLC PDU corresponding to the PDCP PDU that is correctly received at the RLC layer, and also needs to notify the RLC layer of each secondary radio access device that performs the multiplexing operation to stop receiving correctly.
  • the PDCP PDU is at the RLC PDU corresponding to the RLC layer of the secondary wireless access device.
  • the method when performing the multiplexing operation, further includes: a UE in a chain of each wireless access device Sending a PDCP PDU to the wireless access device on the road; the UE receives the PDCP status report sent by the primary wireless access device, and when the wireless access device includes the primary wireless access device and the secondary wireless access device, the PDCP status report is used to indicate the UE Notifying the SN corresponding to the PDCP PDU correctly received by the RLC layer corresponding to the primary radio access device and the RLC layer corresponding to each secondary radio access device performing the multiplexing operation, and stopping the RLC corresponding to the PDCP PDU correctly received at the RLC layer
  • the ARQ of the PDU when the wireless access device includes the secondary wireless access device, the PDCP status report is used to instruct the UE to notify the SN corresponding to the PDCP PDU correctly received by the RLC layer corresponding to each secondary wireless access device
  • the UE When performing the multiplexing operation, the UE sends the same PDCP PDU on multiple links, and the primary radio access device reports the PDCP status report to the UE.
  • the PDCP layer of the UE needs Notifying that the RLC layer corresponding to the primary radio access device stops the ARQ of the correctly received PDCP PDU in the RLC PDU corresponding to the RLC layer, and also needs to notify the RLC layer corresponding to each secondary radio access device performing the multiplexing operation to stop receiving correctly.
  • the PDCP PDU is at the RLC PDU corresponding to the RLC layer of the secondary wireless access device.
  • the predetermined rule is: selecting the link with the best quality, or selecting the link with the fastest transmission speed, or selecting the link with the most stable link quality.
  • a data transmission method includes: the wireless access device generates first indication information, where the first indication information is activation indication information or deactivation indication information, and the activation indication information is used to indicate that the user equipment UE performs a processing operation, the deactivation indication information is used to instruct the UE to stop the processing operation, and the processing operation includes at least one of a multiplexing operation and a transformation operation; sending the first indication information to the UE; wherein the multiplexing operation refers to passing the same data Strip link transmission; transform operation refers to selecting one link from multiple links for data transmission.
  • the UE When the UE performs the multiplexing operation, the UE transmits the same data through multiple links, so that the reliability of the data transmission can be improved through the links with better link signal quality among the multiple links; when the UE performs the transform operation When the UE selects one link from multiple links for data transmission, since the quality of the selected link is generally good, the reliability of the data transmission can also be improved; thereby solving the existing data single link transmission.
  • the problem of high reliability of URLLC cannot be guaranteed to meet the needs of the URLLC service.
  • the primary radio access device sends deactivation indication information to the UE to instruct the UE to stop the processing operation, thereby saving additional resource overhead caused by transmitting data through the processing operation.
  • the method further includes: the wireless access device sends an execution condition to the UE, where the execution condition is used by the UE to determine whether to perform a processing operation.
  • the radio access device sends a first threshold value to the UE, where the first threshold value is used by the UE to determine whether to perform a multiplexing operation or a transform operation.
  • the method further includes: the wireless access device sends the second indication information to the UE, where the second indication information is bound to the first indication information; Indicates the SRB based on link establishment and/or the DRB based on link establishment.
  • the method further includes: when the wireless access device is applied to the DC scenario or the MC scenario, the wireless access The device is a primary wireless access device, and the primary wireless access device sends a third indication information to the secondary wireless access device, where the third indication information is used to indicate that the secondary wireless access device configures the radio resource for the SRB; the primary wireless access device Receiving configuration information of the SRB sent by the secondary wireless access device; the primary wireless access device sends the configuration information to the UE.
  • the UE not only establishes an RRC connection with the primary radio access device but also establishes an RRC connection with the secondary radio access device, thereby ensuring the reliability of the control plane.
  • the method further includes: the radio access device sends the DRB identifier to the UE, and selects the DRB indicated by the DRB identifier.
  • the corresponding link performs processing operations.
  • the DRB identifier is bound to the first indication information.
  • the wireless access device further sends an SRB identifier to the UE, and selects a link corresponding to the SRB indicated by the SRB identifier to perform a processing operation.
  • the SRB identifier is bound to the first indication information.
  • the method further includes: the wireless access device receives the capability information sent by the UE, and the capability information is used to indicate whether the UE supports the processing operation.
  • the UE sends the capability information to the radio access device to indicate whether it supports the processing operation. After determining that the UE supports the processing operation, the radio access device sends the first indication information to the UE, so as to avoid sending the UE to the UE when the UE does not support the processing operation. The waste of resources caused by the first indication information.
  • the method further includes: the wireless access device sends the cell identity information to the UE, where the serving cell indicated by the cell identity information is a serving cell performing multiplexing operation; or the wireless access device sends the cell number and the second threshold to the UE.
  • the serving cell with the link signal quality greater than the second threshold is the serving cell performing the multiplexing operation, and the total number of all selected serving cells does not exceed the number of cells; or the wireless access device sends the downlink data to the UE,
  • the serving cell that transmits downlink data to the UE is a serving cell that performs multiplexing operation.
  • Selecting a serving cell whose link signal quality is greater than the second threshold as the serving cell performing the multiplexing operation can further improve the reliability of data transmission.
  • the wireless access device when the wireless access device is applied to the DC scenario or the MC scenario
  • the wireless access device is the primary wireless access device
  • the method further includes: the primary wireless access device sends the secondary wireless access device identification information to the UE, and the secondary wireless access device indicated by the secondary wireless access device identification information a wireless access device that performs a multiplexing operation; or, the primary wireless access device sends the number of the wireless access device and the third threshold to the UE, and the wireless access device whose link signal quality is greater than the third threshold is performed.
  • the wireless access device is multiplexed, and the total number of all selected wireless access devices does not exceed the number of wireless access devices; or the primary wireless access device sends downlink data to the UE, and sends the downlink data to the UE.
  • the incoming device is a wireless access device that performs multiplexing operations.
  • Selecting the wireless access device with the link signal quality greater than the third threshold as the wireless access device performing the multiplexing operation can further improve the reliability of data transmission.
  • the method when performing the multiplexing operation, further includes: receiving, by the primary wireless access device, the UE a BSR, where the first BSR includes a product of a PDCP layer of the primary radio access device multiplied by a number of radio access devices performing a multiplexing operation, and a corresponding one of the primary radio access device and each of the secondary radio access devices The sum of the data amounts of the RLC layer; and the negotiation of the uplink resources of the UE with each of the secondary radio access devices that receive the first BSR.
  • the method when performing the multiplexing operation, further includes: receiving, by the primary radio access device, the UE a second BSR; when the second BSR includes the product of the PDCP layer of the primary radio access device multiplied by the number of radio access devices performing the multiplexing operation, and the respective primary radio access device and each of the secondary radio access devices The sum of the data amounts of the RLC layer, the primary radio access device determines the uplink resource allocated to the UE according to the second BSR, and subtracts the value of the second BSR from the value of the uplink resource to obtain the remaining uplink resource request amount, and the remaining uplink resources.
  • the request quantity is sent to the secondary wireless access device, and the remaining uplink resource request quantity is used to indicate that the secondary wireless access device determines the uplink resource allocated to the UE; when the second BSR includes the data volume of the PDCP layer of the primary wireless access device and each When the sum of the data amounts of the RLC layer of the secondary wireless access device and the minimum of the sum of the data amounts of the PDCP layer and the RLC layer of the primary wireless access device, the primary wireless access device determines to be the UE according to the second BSR Uplink resource allocation and forwards the second auxiliary BSR to each wireless access device, a second BSR for instructing each wireless access device is determined to be a secondary uplink resource allocated to the UE.
  • the method when performing the multiplexing operation, further includes: receiving, by the primary wireless access device, each secondary wireless device The remaining uplink resource request quantity sent by one secondary radio access device in the access device, and the remaining uplink resource request quantity is that the secondary radio access device subtracts the value in the second BSR sent by the UE from the secondary radio access device to allocate the UE
  • the value of the uplink resource is obtained; the uplink resource allocated to the UE is determined according to the remaining uplink resource request amount; or the primary wireless access device receives the second BSR sent by one of the secondary wireless access devices,
  • the second BSR is a second BSR that is sent by the UE to the secondary wireless access device; the uplink resource allocated to the UE is determined according to the second BSR; wherein the secondary wireless access device is a secondary wireless access device that sends a UL grant to the UE, and The UE is configured to send the second BSR to the secondary wireless access device on the uplink resource indicated
  • the method when performing the multiplexing operation, further includes: the primary wireless access device receiving the The third BSR includes a sum of data amounts of a PDCP layer and an RLC layer of the primary radio access device; and an uplink resource allocated for the UE according to the third BSR.
  • the method when performing the multiplexing operation, further includes: the primary wireless access device receiving the sending by the UE PDCP status report; when the primary radio access device transmits a PDCP PDU to the UE on the link, the primary radio access device notifies the RLC layer of the primary radio access device and the RLC layer of each secondary radio access device performing the multiplexing operation The SN corresponding to the PDCP PDU correctly received by the UE, and stopping the ARQ of the RLC PDU corresponding to the correctly received PDCP PDU at the RLC layer; when the primary radio access device does not send the PDCP PDU to the UE, the primary radio access device notifies the performing the multiplexing operation The sequence number SN corresponding to the PDCP PDU correctly received by the RLC layer UE of each secondary wireless access device stops the ARQ of the RLC PDU corresponding to the correctly received PDCP PDU at the RLC layer.
  • the UE When performing the multiplexing operation, the UE receives the same PDCP PDU on multiple links, and the UE reports the PDCP status report to the primary wireless access device.
  • the primary wireless access device The PDCP layer needs to notify the RLC layer of the primary radio access device to stop the ARQ of the RLC PDU corresponding to the PDCP PDU that is correctly received at the RLC layer, and also notify the RLC layer of each secondary radio access device to stop the PDCP PDU that is correctly received in the secondary radio.
  • the RLC PDU corresponding to the RLC layer of the access device The RLC PDU corresponding to the RLC layer of the access device.
  • the method when performing the multiplexing operation, further includes: the primary radio access device receiving the PDCP PDU; The primary radio access device sends a PDCP status report to the UE.
  • the PDCP PDU is sent by the UE and each secondary radio access device performing the multiplexing operation on the respective link, the PDCP status report is used to indicate that the UE notifies the main radio connection.
  • the SN corresponding to the PDCP PDU that is correctly received by the RLC layer corresponding to the secondary radio access device that performs the multiplexing operation and stops the ARQ of the RLC PDU corresponding to the correctly received PDCP PDU at the RLC layer;
  • the PDCP status report is used to instruct the UE to notify the RLC layer corresponding to each secondary wireless access device performing the multiplexing operation to correctly receive the The SN corresponding to the PDCP PDU, and stops the ARQ of the RLC PDU corresponding to the correctly received PDCP PDU at the RLC layer.
  • the UE When performing the multiplexing operation, the UE sends the same PDCP PDU on multiple links, and the primary radio access device reports the PDCP status report to the UE.
  • the PDCP layer of the UE needs Notifying that the RLC layer corresponding to the primary radio access device stops the ARQ of the correctly received PDCP PDU in the RLC PDU corresponding to the RLC layer, and also needs to notify the RLC layer corresponding to each secondary radio access device performing the multiplexing operation to stop receiving correctly.
  • the PDCP PDU is at the RLC PDU corresponding to the RLC layer of the secondary wireless access device.
  • a data transmission apparatus comprising at least one unit for implementing the data transmission method provided in the above first aspect or at least one implementation of the first aspect.
  • a data transmission apparatus comprising at least one unit for implementing the data transmission method provided in at least one of the above second aspect or the second aspect.
  • a data transmission apparatus comprising: a processor, and a transceiver coupled to the processor; the transceiver configured to be controlled by a processor, the processor for implementing the first aspect or the first A method of data transmission provided in at least one implementation of the aspects.
  • a data transmission apparatus comprising: a processor, and a transceiver coupled to the processor; the transceiver configured to be controlled by a processor, the processor for implementing the second aspect or the second A method of data transmission provided in at least one implementation of the aspects.
  • FIG. 1 is a schematic structural diagram of a data transmission system according to an exemplary embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a 1A architecture according to an exemplary embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a 3C architecture according to an exemplary embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of an electronic device according to an exemplary embodiment of the present invention.
  • FIG. 5 is a flowchart of a data transmission method according to an exemplary embodiment of the present invention.
  • FIG. 6 is a first schematic diagram of a BSR report according to an exemplary embodiment of the present invention.
  • FIG. 7 is a second schematic diagram of BSR reporting according to an exemplary embodiment of the present invention.
  • FIG. 8 is a third schematic diagram of BSR reporting according to an exemplary embodiment of the present invention.
  • FIG. 9 is a fourth schematic diagram of BSR reporting according to an exemplary embodiment of the present invention.
  • FIG. 10 is a structural diagram of a data transmission apparatus according to an exemplary embodiment of the present invention.
  • FIG. 11 is a structural diagram of a data transmission apparatus according to an exemplary embodiment of the present invention.
  • unit refers to a functional structure that is logically divided, and the “unit” can be implemented by pure hardware or a combination of hardware and software.
  • FIG. 1 shows a schematic diagram of a data transmission system 100 according to an exemplary embodiment of the present invention.
  • the data transmission system 100 includes a primary wireless access device 110 , at least one secondary wireless access device 120 , and a UE 130 .
  • the primary wireless access device 110 and the secondary wireless access device 120 establish a link, the secondary wireless access device 120, and the UE 130.
  • a link is established between the primary wireless access device 110 and the UE 130.
  • the data transmission system 100 includes at least two secondary wireless access devices 120, a link is established between the primary wireless access device 110 and each secondary wireless access device 120, and each secondary wireless access device is corresponding to the MC scenario.
  • a link is established between the UE 120 and the UE 130, a link is established between each of the secondary wireless access devices 120, and a link is established between the primary wireless access device 110 and the UE 130.
  • the primary wireless access device 110 may be referred to as an M-gNB (Master gNB), and the secondary wireless access device 120 may be an S-gNB (Secondary gNB).
  • M-gNB Master gNB
  • S-gNB Secondary gNB
  • FIG. 1 only the data transmission system 100 includes a secondary wireless access device 130 for illustration.
  • the UE 130 establishes an SRB with the primary radio access device 110 and the secondary radio access device 120 respectively.
  • the specific establishment process is described in detail below.
  • the UE 130 and the primary radio access device 110 respectively.
  • the secondary wireless access device 120 establishes a DRB, and the DRB includes an SCG bearer and a split bearer.
  • the MeNB includes a physical (PHY) layer, a Medium Access Control (MAC) layer located above the PHY layer, an RLC layer located above the MAC layer, and an RLC layer.
  • the PDCP layer on the SeNB includes a PHY layer, a MAC layer located above the PHY layer, an RLC layer located above the MAC layer, and a PDCP layer located above the RLC layer.
  • the network side establishes an S1 connection with the MeNB and the SeNB, respectively.
  • the MeNB includes a PHY layer, a MAC layer located above the PHY layer, an RLC layer located above the MAC layer, and a PDCP layer located above the RLC layer;
  • the SeNB includes a PHY layer and is located at the PHY layer.
  • the upper MAC layer, the RLC layer above the MAC layer, and the RLC layer in the SeNB and the PDCP layer in the MeNB are connected through the Xn interface.
  • the network side establishes an S1 connection with the MeNB.
  • the data transmission system 100 may include the wireless access device 140 and the UE 130.
  • the electronic device 400 may be the primary wireless access device 110 or the secondary wireless access device 120 or the UE 130 or the wireless access device 140 illustrated in FIG. 1 , the electronic device 400 including: a processor 410 connected to the processor 410 Transceiver 420.
  • the transceiver 420 can be comprised of one or more antennas that enable the electronic device to transmit or receive radio signals.
  • the transceiver 420 can be coupled to a communication circuit 430 that can perform various processing on signals received via the transceiver 420 or transmitted via the transceiver 420, such as modulating signals transmitted via the transceiver 420, demodulating via the transceiver
  • the signal received by 420, when actually implemented, the communication circuit 430 may be composed of a radio frequency (RF) chip and a baseband chip.
  • RF radio frequency
  • Communication circuit 430 can be coupled to processor 410.
  • the communication circuit 430 can alternatively be integrated in the processor 410.
  • the processor 410 is a control center of an electronic device, and the processor 410 may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP.
  • Processor 410 may also further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof.
  • the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL), or any combination thereof.
  • the memory 440 is coupled to the processor 410 by a bus or other means.
  • the memory 440 can be a volatile memory, a non-volatile memory, or a combination thereof.
  • the volatile memory may be a random-access memory (RAM) such as a static random access memory (SRAM) or a dynamic random access memory (DRAM).
  • the non-volatile memory may be a read only memory image (ROM), such as a programmable read only memory (PROM), an erasable programmable read only memory (EPROM). ), electrically erasable programmable read-only memory (EEPROM).
  • the non-volatile memory may also be a flash memory, a magnetic memory such as a magnetic tape, a floppy disk, or a hard disk.
  • the non-volatile memory can also be an optical disc.
  • the primary wireless access device when the data transmission system includes the primary wireless access device and the secondary wireless access device, the primary wireless access device needs to configure the SRB and before the UE communicates with the primary wireless access device and the secondary wireless access device.
  • the DRB is instructed to configure the SRB and the DRB for each secondary wireless access device, and the process for configuring the SRB and the DRB for each secondary wireless access device is the same.
  • the technology for configuring the SRB and the DRB of the primary radio access device is very mature. You can refer to the description in the related art. This embodiment is not described here.
  • the primary radio access device is configured to indicate the configuration of each secondary radio access device.
  • the process of SRB and DRB is introduced. For convenience of description, this embodiment uses the primary radio access device to indicate that a secondary radio access device configures SRB and DRB for illustration.
  • the primary wireless access device instructs the secondary wireless access device to perform configuration of the radio resources of the SRB and/or the DRB, and the secondary wireless access device performs radio resource configuration on the SRB and/or the DRB according to the indication of the primary wireless access device, and
  • the generated configuration information is sent to the UE through the primary radio access device.
  • Table 1 is a configuration request sent by the primary wireless access device to the secondary wireless access device
  • Table 2 is a configuration response fed back by the secondary wireless access device.
  • the configuration request can be implemented by using a secondary wireless access device (S-gNB addition request) message
  • the configuration response can be implemented by using a secondary wireless access device (S-gNB addition response) message.
  • the DRB type refers to the bearer type of the DRB, including the split and the SCG, and the primary wireless access device indicates the split wireless bearer or the SCG bearer by using the enumerated type.
  • the primary wireless access device can also use the same manner to instruct the secondary wireless access device to perform SRB configuration.
  • the primary wireless access device is configured with SRB1 and SRB2, and the SRB1 is identified by the SRB ID1, and the SRB2 is identified by the SRB ID2.
  • the primary wireless access device indicates, according to the SRB ID and the configuration indication, that the secondary wireless access device corresponds to the SRB ID.
  • the SRB performs wireless resource configuration.
  • the primary radio access device directly sends the SRB ID to the secondary radio access device, and after receiving the identifier, the secondary radio access device performs radio resource configuration on the SRB corresponding to the SRB ID. That is, the configuration indication in Table 1 is an optional parameter.
  • configuration indication can indicate that the primary wireless access device supports the multiplexing operation and/or the transform operation.
  • the NR When the data transmission system is applied in a 5G system, the NR operates at a high frequency, and there are severe shadow effects and sharp channel change conditions, which may result in frequent RLF, and the reliability of the control plane is not guaranteed.
  • the UE not only establishes an RRC connection with the primary radio access device, but also establishes an RRC connection with the secondary radio access device, thereby ensuring the reliability of the control plane.
  • FIG. 5 shows a flowchart of a data transmission method according to an exemplary embodiment of the present invention.
  • This embodiment is exemplified by the method used in the data transmission system shown in FIG. 1.
  • the following steps are performed by the radio access device 110 and the UE 130, and the method includes the following steps:
  • Step 501 The UE sends the capability information of the UE to the wireless access device, where the capability information is used to indicate whether the UE supports the processing operation.
  • the processing operation includes at least one of a multiplexing operation and a transformation operation.
  • the multiplexing operation refers to transmitting the same data through multiple links, and the multiplexing operation here may also be referred to as a duplication operation.
  • the data transmission system includes a primary wireless access device and a secondary wireless access device, and the UE and a primary wireless access device and n (n is a positive integer)
  • the wireless access device establishes a link, and the UE may send the same uplink data through the link of the primary wireless access device and the link of the multiple secondary wireless access devices; or the UE may pass the link of the primary wireless access device and The links of multiple secondary wireless access devices receive the same downlink data.
  • the data transmission system includes a wireless access device, and the UE establishes a link with multiple serving cells of the wireless access device, and the UE sends the same uplink data through multiple links;
  • the UE can receive the same downlink data through multiple links.
  • the transform operation refers to selecting one link from multiple links for data transmission.
  • the transform operation here may also be referred to as a switching operation.
  • the data transmission system includes a primary wireless access device and a secondary wireless access device, and the UE and a primary wireless access device and n (n is a positive integer)
  • the wireless access device establishes a link, and selects one link from among multiple links to send uplink data or receive downlink data.
  • the data transmission system includes a wireless access device, and the UE establishes a link with multiple serving cells of the wireless access device, and the UE selects one link from multiple links to send. Uplink data or receive downlink data.
  • the transform operation may also refer to selecting one link from multiple links for data transmission according to a predetermined rule.
  • the predetermined rule may be: selecting the link with the best quality, or selecting the link with the fastest transmission speed, or selecting the link with the most stable link quality. In this way, the UE can select a link according to requirements, thereby improving the reliability or transmission speed of data transmission.
  • Some UEs do not support processing operations because some UEs support processing operations. Therefore, the UE also needs to indicate whether it supports processing operations in the generated capability information, and sends the capability information to the wireless access device, so that the wireless access device It is possible to determine whether the UE supports processing operations.
  • Step 502 The wireless access device receives capability information sent by the UE.
  • Step 503 The wireless access device generates first indication information, where the first indication information is activation indication information or deactivation indication information.
  • the activation indication information is used to indicate that the UE performs a processing operation
  • the deactivation indication information is used to instruct the UE to stop the processing operation, so that the processing operation may be performed without instructing the UE to stop the processing operation, thereby saving resources caused by the data transmission by the processing operation. waste.
  • Step 504 The wireless access device sends the first indication information to the UE.
  • the wireless access device may send the first indication information to the UE in a MAC control element (Control Element; CE) or an RRC message; or the wireless access device may carry the first indication information in other messages and send the message to the UE; Alternatively, the wireless access device may separately send the first indication information, which is not limited in this embodiment.
  • a MAC control element Control Element; CE
  • RRC message an RRC message
  • the wireless access device may carry the first indication information in other messages and send the message to the UE;
  • the wireless access device may separately send the first indication information, which is not limited in this embodiment.
  • Step 505 The UE receives the first indication information sent by the wireless access device.
  • Step 506 The first indication information is activation indication information, and the UE performs a processing operation.
  • the first indication information is deactivation indication information, and the UE stops the processing operation.
  • the first indication information is the activation indication information
  • the first indication information is the deactivation indication information
  • the scheme in which the UE stops processing operations is juxtaposed, and there is no limitation on the execution order.
  • the first indication information is the deactivation indication information.
  • the UE stops the processing operation when the first indication information is the activation indication information, the UE performs the processing operation as an optional implementation.
  • the first indication information is the activation indication information, and the UE performs the processing.
  • the first indication information is deactivation indication information, and the UE stops the processing operation as a further optional implementation.
  • the UE when the indication information received by the UE is the activation indication information, the UE performs the processing operation, and when the indication information received by the UE is the deactivation indication information, the operation of the UE may not be limited; similarly, an indication received by the UE The information is the deactivation indication information, the UE stops the processing operation, and the indication information received by the UE is the activation indication information, and the operation of the UE may not be limited.
  • the activation indication information is used to indicate that the UE performs a processing operation, and the UE cannot determine when to perform the processing operation. Therefore, the wireless access device may send an execution condition to the UE, so that the UE determines when to perform the processing operation according to the execution condition. .
  • the wireless access device sends an execution condition to the UE, and the execution condition is used for the UE to determine whether to perform a processing operation.
  • the UE receives an execution condition sent by the wireless access device.
  • the “UE performing processing operation” in step 506 may be replaced with: when the UE satisfies the execution condition, the UE performs a processing operation.
  • the execution condition can be used to indicate a signal quality threshold or a data volume threshold. For example, when the condition indication signal quality threshold is executed, the UE performs a processing operation when the signal quality is lower than the signal quality threshold; when the signal quality is higher than the signal quality threshold, the processing operation is not performed; or The UE performs a processing operation when the signal quality is higher than the signal quality threshold; when the signal quality is lower than the signal quality threshold, the processing operation is not performed.
  • the execution condition indicates the data amount threshold
  • the UE performs a processing operation when the data amount of the uplink data to be transmitted is lower than the data amount threshold; when the data amount is higher than the data amount threshold, the execution is not performed. Processing operation; or, the UE performs a processing operation when the data amount is higher than the data amount threshold; when the data amount is lower than the data amount threshold, the processing operation is not performed.
  • the activation indication information is used to indicate that the UE performs a processing operation, the UE cannot determine when to perform the multiplexing operation, and when to perform the transform operation, therefore, the wireless access device may send the first threshold value to the UE for the UE. Whether the multiplexing operation or the conversion operation is performed is determined according to the first threshold value.
  • the wireless access device sends a first threshold to the UE.
  • the UE receives the first threshold value sent by the wireless access device.
  • the “UE performing processing operation” in step 506 may be replaced by: the UE determines the data amount of the uplink data to be sent; when the data amount is less than the first threshold, the UE performs the multiplexing operation; when the data volume is greater than the first
  • the UE performs a transform operation; or, when the amount of data is greater than the first threshold, the UE performs a multiplexing operation; when the amount of data is less than the first threshold, the UE performs a transform operation.
  • the wireless access device may send the first threshold value to the UE in the activation indication information; or the wireless access device may carry the first threshold value and the activation indication information together in other messages to send to the UE
  • the UE may send the first threshold to the UE separately, which is not limited in this embodiment.
  • the activation indication information is used to indicate that the UE performs the processing operation, and the UE cannot determine whether to select the link corresponding to the SRB to perform the processing operation or the link corresponding to the DRB to perform the processing operation. Therefore, the wireless access device also needs to The UE sends the second indication information, so that the UE determines whether to select a link corresponding to the SRB to perform a processing operation or a link corresponding to the DRB to perform a processing operation according to the second indication information.
  • the wireless access device sends the second indication information to the UE, where the second indication information is used to indicate the SRB and/or the DRB, and the second indication information is bound to the first indication information.
  • the UE receives the second indication information sent by the wireless access device.
  • the “UE performing processing operation” in step 506 may be replaced by: when the second indication information indicates the SRB, the UE selects a link corresponding to the SRB to perform a processing operation; when the second indication information indicates the DRB, the UE selects The link corresponding to the DRB performs a processing operation.
  • the wireless access device may be the second The indication information is carried in the activation indication information and sent to the UE.
  • the binding of the second indication information and the first indication information means that the second indication information and the activation indication information are carried in the same message.
  • the wireless access device may The second indication information and the activation indication information are carried together in other messages and sent to the UE; or the binding of the second indication information and the first indication information means that there is a correspondence between the second indication information and the first indication information.
  • the wireless access device may separately send the second indication information to the UE, which is not limited in this embodiment.
  • the radio access device needs to The UE sends the DRB identifier, and the DRB identifier is bound to the first indication information, so that the UE determines, according to the DRB identifier, which DRB corresponding link is selected to perform a processing operation.
  • the DRB identifier is used to indicate the DRB.
  • the implementation manner further includes the following steps.
  • the wireless access device sends a DRB identity to the UE.
  • the UE receives the DRB identifier sent by the wireless access device.
  • the “UE selects the link execution processing operation corresponding to the DRB” may be replaced by: the UE selects a link corresponding to the DRB indicated by the DRB identifier to perform a processing operation.
  • the binding of the DRB identifier to the first indication information means that the DRB identifier is carried in the activation indication information.
  • the wireless access device may carry the DRB identifier in the activation indication information.
  • the UE is sent to the UE.
  • the DRB identifier is associated with the first indication information.
  • the DRB identifier and the activation indication information are carried in the same message.
  • the radio access device can carry the DRB identifier and the activation indication information together in other messages.
  • the UE is sent to the UE.
  • the binding between the DRB identifier and the first indication information is that the DRB identifier is associated with the first indication information.
  • the radio access device can send the DRB identifier to the UE separately. limited.
  • a plurality of SRBs may be configured between the wireless access device and the UE, and the processing operations of the links corresponding to the partial SRBs need to be performed, and the links corresponding to the other SRBs do not need to perform processing operations. Therefore, the wireless access device also needs to perform processing operations.
  • the SRB identifier needs to be sent to the UE, and the SRB identifier is bound to the first indication information, so that the UE determines, according to the SRB identifier, which SRBs are selected to perform processing operations.
  • the SRB identifier is used to indicate the SRB.
  • the implementation manner further includes the following steps.
  • the wireless access device sends an SRB identity to the UE.
  • the UE receives the SRB identifier sent by the wireless access device.
  • the “UE selects the link execution processing operation corresponding to the SRB” may be replaced by: the UE selects a link corresponding to the SRB indicated by the SRB identifier to perform a processing operation.
  • the binding of the SRB identifier to the first indication information means that the SRB identifier is carried in the activation indication information.
  • the wireless access device may carry the SRB identifier in the activation indication information.
  • the SRB identifier is associated with the first indication information, and the SRB identifier and the activation indication information are carried in the same message.
  • the radio access device may carry the SRB identifier and the activation indication information together in other messages.
  • the UE is sent to the UE; or the SRB identifier is associated with the first indication information, and the SRB identifier is associated with the first indication information. In this case, the radio access device may send the SRB identifier to the UE separately. limited.
  • the data transmission system includes the wireless access device.
  • the UE Before the UE performs the multiplexing operation, it is also required to determine which serving cells support the multiplexing operation. This embodiment provides a method for selecting and supporting the multiplexing operation. The three ways of serving the community are described below.
  • the wireless access device transmits cell identification information to the UE.
  • the UE receives the cell identity information sent by the radio access device, and determines the serving cell indicated by the cell identity information as the serving cell performing the multiplexing operation.
  • the wireless access device may send the cell identification information to the UE in the activation indication information; or the wireless access device may carry the cell identification information and the activation indication information together in other messages and send the message to the UE; or, the wireless The access device may separately send the cell identity information to the UE, which is not limited in this embodiment.
  • the wireless access device sends the number of cells and the second threshold to the UE.
  • the UE receives the number of cells and the second threshold value sent by the radio access device, and selects the serving cell whose link signal quality is greater than the second threshold as the serving cell that performs the multiplexing operation, and the total of the selected serving cell. The number does not exceed the number of cells.
  • the serving cell with the link signal quality greater than the second threshold performs multiplexing operation, and the total number of serving cells performing the multiplexing operation cannot exceed the number of cells, and the UE selects the serving cell for multiplexing operation according to the two conditions. .
  • the UE may sort each serving cell according to the link signal quality from good to bad, and select the ranked serving cell. Or, the UE may randomly select a serving cell from which the total number of selected serving cells does not exceed the number of cells.
  • the wireless access device may send the number of cells and the second threshold value to the UE in the activation indication information; or the wireless access device may carry the number of cells, the second threshold, and the activation indication information together in other messages.
  • the radio access device may send the number of cells and the second threshold to the UE separately, which is not limited in this embodiment.
  • the wireless access device sends downlink data to the UE.
  • the serving cell that the UE sends the downlink data to the UE is determined as the serving cell that performs the multiplexing operation.
  • serving cells On which serving cells the UE receives downlink data, these serving cells are determined as serving cells for performing multiplexing operations.
  • the data transmission system includes the primary wireless access device and the secondary wireless access device. Since different wireless access devices may be configured with the same SRB and/or DRB, Before the UE performs the multiplexing operation, it is also required to determine which wireless access devices support the multiplexing operation. This embodiment provides three modes for selecting a wireless access device that supports the multiplexing operation, and the following three selection manners are respectively performed. Introduction.
  • the primary radio access device sends the secondary radio access device identification information to the UE.
  • the UE receives the secondary wireless access device identification information sent by the primary wireless access device, and determines the secondary wireless access device indicated by the secondary wireless access device identification information as the wireless access device that performs the multiplexing operation.
  • the primary wireless access device may carry the secondary wireless access device identification information in the activation indication information and send the information to the UE; or the primary wireless access device may carry the secondary wireless access device identification information and the activation indication information together
  • the other information is sent to the UE; or the primary radio access device may separately send the secondary radio access device identification information to the UE, which is not limited in this embodiment.
  • the primary radio access device sends the number of radio access devices and the third threshold to the UE.
  • the UE receives the number of the wireless access devices and the third threshold value that are sent by the primary wireless access device, and selects the wireless access device whose link signal quality is greater than the second threshold as the wireless access device that performs the multiplexing operation. The total number of selected wireless access devices does not exceed the number of wireless access devices.
  • the radio access device with the link signal quality greater than the third threshold performs the multiplexing operation, and the total number of the radio access devices performing the multiplexing operation cannot exceed the number of the radio access devices, and the UE selects according to the two conditions.
  • the UE may sort each radio access device according to the link signal quality from good to bad, and The wireless access device that is ranked first is selected; or the wireless access device can be randomly selected by the UE, and the total number of selected wireless access devices does not exceed the number of wireless access devices.
  • the primary wireless access device may carry the number of the wireless access device and the third threshold value in the activation indication information to the UE; or the primary wireless access device may set the number of the wireless access device, the third threshold, and the activation.
  • the indication information is carried in the other message and sent to the UE.
  • the primary radio access device may separately send the number of the radio access device and the third threshold to the UE, which is not limited in this embodiment.
  • the primary radio access device sends downlink data to the UE.
  • the radio access device that the UE sends downlink data to the UE determines to be a radio access device that performs a multiplexing operation.
  • these wireless access devices are determined as wireless access devices that perform multiplexing operations.
  • the data transmission system includes a primary wireless access device and a secondary wireless access device, and the UE needs to send a BSR to the wireless access device to perform wireless before performing the multiplexing operation.
  • the access device allocates uplink resources for performing multiplexing operations for the UE.
  • This embodiment provides four methods for transmitting a BSR to a wireless access device. The following four transmission modes are respectively introduced.
  • the UE In the first transmission mode, the UE sends a first BSR to the primary radio access device and each of the secondary radio access devices, and the first BSR includes the data amount of the PDCP layer of the primary radio access device multiplied by performing multiplexing.
  • the primary radio access device receives the first BSR sent by the UE, and performs the negotiation of the uplink resources of the UE with each of the secondary radio access devices that receive the first BSR.
  • the uplink data sent by the UE is simultaneously sent to the RLC layer of the primary radio access device and the RLC layer of each secondary radio access device, and the RLC layer of each secondary radio access device is connected to the main radio.
  • the PDCP layer of the device is associated with the device. Therefore, the BSR corresponding to the primary radio access device is the sum of the data volume of the PDCP layer and the RLC layer of the primary radio access device, and the BSR corresponding to each secondary radio access device is the primary radio access. The sum of the data amounts of the PDCP layer of the device and the RLC layer of the secondary wireless access device.
  • the first BSR includes the data amount of the PDCP layer of the primary wireless access device multiplied by the number of wireless access devices performing the multiplexing operation.
  • the sum of the data, and the sum of the data amounts of the RLC layers corresponding to the primary wireless access device and each of the secondary wireless access devices, the wireless access device includes a primary wireless access device and a secondary wireless access device.
  • the data volume of the PDCP layer of the primary wireless access device is 200 bytes
  • the data volume of the RLC layer of the primary wireless access device is 800 bytes
  • the RLC of the secondary wireless access device The data amount of the layer is 600 bytes
  • the data volume of the PDCP layer of the primary wireless access device is 200 bytes
  • the data volume of the RLC layer of the primary wireless access device is 800 bytes
  • the secondary wireless access device 1 The data amount of the RLC layer is 600 bytes
  • the data amount of the RLC layer of the secondary wireless access device 2 is 700 bytes
  • the UE After generating the first BSR, the UE sends a first BSR to the primary wireless access device and each secondary wireless access device, where the primary wireless access device performs the UE with each secondary wireless access device that receives the first BSR.
  • FIG. 6 illustrates an example in which a UE sends a first BSR to a primary radio access device and a secondary radio access device, and the primary radio access device allocates 1000 bytes of uplink resources to the UE.
  • the access device allocates 800 bytes of uplink resources to the UE.
  • the UE In the second transmission mode, the UE receives the UL grant sent by the primary radio access device, and sends the second BSR to the primary radio access device on the uplink resource indicated by the UL grant.
  • the primary radio access device receives the second BSR sent by the UE; and when the second BSR includes the product of the PDCP layer of the primary radio access device multiplied by the number of radio access devices performing the multiplexing operation, and the main
  • the uplink resource allocated to the UE is determined according to the second BSR, and the value of the second BSR is subtracted from the primary radio access device as the UE.
  • the value of the allocated uplink resource is used to obtain the remaining uplink resource request quantity, and the remaining uplink resource request quantity is sent to the secondary wireless access device, and the remaining uplink resource request quantity is used to indicate that the secondary wireless access device determines the uplink resource allocated by the UE;
  • the second BSR includes the sum of the data amount of the PDCP layer of the primary radio access device and the data amount of the RLC layer of each secondary radio access device, and the sum of the data amounts of the PDCP layer and the RLC layer of the primary radio access device.
  • the uplink resource allocated to the UE is determined according to the second BSR, and the second BSR is forwarded to each secondary wireless access device, where the second BSR is used to indicate that each secondary wireless access device determines the uplink resource allocated to the UE. .
  • the UE Before the UE sends the second BSR, it is also required to determine the uplink resource that sends the second BSR.
  • the UE requests the radio access device to send the uplink resource of the second BSR, and after receiving the request, the radio access device sends a UL grant to the UE, and the UE instructs the uplink resource to send the second through the UL grant.
  • the UE requests the radio access device to send uplink data, there is still a remaining resource, and the UE sends the second BSR to the radio access device on the uplink resource.
  • the wireless access device at this time may be a primary wireless access device, or may be one or more secondary wireless access devices of each secondary wireless access device, or may be a primary wireless access device and all secondary wireless access devices. The device is not limited in this embodiment.
  • the UE sends the second BSR to the primary radio access device as an example.
  • the second BSR includes the data amount of the PDCP layer of the primary radio access device multiplied by the radio access device that performs the multiplexing operation.
  • the sum of the data amount of the RLC layer of the access device and the minimum of the sum of the data amounts of the PDCP layer and the RLC layer of the primary radio access device, and the implementation manners of the two second BSRs are respectively described below.
  • the second BSR includes the product of the PDCP layer of the primary radio access device multiplied by the number of radio access devices performing the multiplexing operation, and the respective RLC layers of the primary radio access device and each of the secondary radio access devices For the sum of the data amounts, the calculation method of the second BSR is described in the description of the first transmission mode, and details are not described herein again.
  • the UE first receives the UL grant sent by the primary radio access device, the number of the secondary radio access device is 1, and the value of the second BSR is 1800 bytes obtained in the first transmission mode, and the UE connects to the primary radio.
  • the primary wireless access device may send the first remaining uplink resource request amount to one of the secondary wireless access devices that are allowed to perform the multiplexing operation.
  • the secondary wireless access device determines, according to the first remaining uplink resource request quantity, an uplink resource that can be allocated for the UE, and subtracts the value of the uplink resource from the first remaining uplink resource request quantity, and obtains the second
  • the remaining uplink resource request quantity is sent to one of the remaining secondary wireless access devices, and so on, until the value of the uplink resource allocated for the UE reaches the value of the second BSR.
  • the primary radio access device may further send the remaining uplink resource request quantity to all or part of the secondary radio access equipment performing the multiplexing operation, so that all or part of the secondary radio access equipment performs the uplink resource of the UE.
  • the second BSR may further include a sum of a data amount of a PDCP layer of the primary radio access device and a data amount of an RLC layer of each secondary radio access device, and a data amount of a PDCP layer and an RLC layer of the primary radio access device.
  • the data volume of the PDCP layer of the primary wireless access device is 200 bytes
  • the data volume of the RLC layer of the primary wireless access device is 800 bytes
  • the RLC of the secondary wireless access device The data volume of the layer is 600 bytes
  • the secondary wireless access device transmits a UL grant to the UE.
  • the UE receives the UL grant sent by one of the secondary wireless access devices, and sends the second BSR to the secondary wireless access device on the uplink resource indicated by the UL grant.
  • the primary radio access device receives the remaining uplink resource request quantity sent by one of the secondary radio access devices, and the remaining uplink resource request quantity is the second BSR sent by the secondary radio access device to the UE.
  • the value is obtained by subtracting the value of the uplink resource allocated by the secondary wireless access device for the UE; determining the uplink resource allocated to the UE according to the remaining uplink resource request amount; or receiving one secondary wireless access in each secondary wireless access device
  • the second BSR is sent by the UE to the secondary wireless access device as an example.
  • the secondary wireless access device in the present transmission mode is similar to the primary wireless access device in the second sending mode.
  • the primary wireless access device in the second transmission mode is similar to the secondary wireless access device in the second transmission mode.
  • the network side needs to explicitly perform the multiplexing operation of the radio access device, otherwise the radio access device cannot be performed.
  • negotiation on the network side when the UE sends a BSR to the primary radio access device and the multiple secondary radio access devices, the network side needs to explicitly perform the multiplexing operation of the radio access device, otherwise the radio access device cannot be performed.
  • the UE sends a third BSR to the primary radio access device, and sends a fourth BSR to each secondary radio access device, where the third BSR includes the PDCP layer and the RLC layer of the primary radio access device.
  • the sum of the data amounts, the fourth BSR includes the sum of the data amount of the PDCP layer of the primary radio access device and the data amount of the RLC layer of the secondary radio access device.
  • the primary radio access device receives the third BSR sent by the UE, and determines the uplink resource allocated to the UE according to the third BSR.
  • the data volume of the PDCP layer of the primary wireless access device is 200 bytes
  • the data volume of the RLC layer of the primary wireless access device is 800 bytes
  • the RLC of the secondary wireless access device The data volume of the layer is 600 bytes
  • the UE sends the third BSR to the primary radio access device, and the secondary BSR is connected.
  • the incoming device sends a fourth BSR please refer to Figure 9.
  • the data transmission system includes a primary wireless access device and a secondary wireless access device, and when performing the multiplexing operation, the UE receives each wireless access device on its own link.
  • the transmitted PDCP PDU sends a PDCP status report to the primary wireless access device.
  • the primary radio access device receives the PDCP status report sent by the UE; when the primary radio access device sends the PDCP PDU to the UE, notifying the RLC layer of the primary radio access device and each secondary radio access device performing the multiplexing operation
  • the RLC layer UE correctly receives the SN corresponding to the PDCP PDU, and stops the ARQ of the correctly received PDCP PDU in the RLC PDU corresponding to the RLC layer; when the primary radio access device does not send the PDCP PDU to the UE, notifies each of the multiplex operations
  • the UE may periodically send a PDCP status report to the primary radio access device, and the primary radio access device may notify the RLC layer of each secondary radio access device through the Xn interface.
  • the primary radio access device and the secondary radio access device send the PDCP PDU to the UE.
  • the PDCP layer of the primary radio access device receives five downlink (DL) packets.
  • Generating PDCP PDU 1/2/3/4/5 the PDCP layer of the primary radio access device transmits PDCP PDU 1/2/3/4/5 to the UE through the RLC layer/MAC layer/PHY layer of the primary radio access device,
  • the PDCP layer of the primary radio access device transmits the PDCP PDU 1/2/3/4/5 to the UE through the RLC layer/MAC layer/PHY layer of the secondary radio access device.
  • the UE may send a PDCP status report to the primary radio access device to notify the primary radio access device to correctly receive the PDCP PDU with the SN of 1/2/4/5, and the PDCP layer of the primary radio access device notifies the SN.
  • the RLC layer of the primary radio access device stops the ARQ of the RLC PDU corresponding to the 1/2/4/5 PDCP PDU at the RLC layer; the PDCP layer of the primary radio access device passes through The Xn interface notifies the RLC layer of the secondary radio access device, and the RLC layer of the secondary radio access device stops the ARQ of the RLC PDU corresponding to the 1/2/4/5 PDCP PDU at the RLC layer, thereby reducing unnecessary resources. waste.
  • the data transmission system includes a primary wireless access device and a secondary wireless access device, and when performing the multiplexing operation, the UE wirelessly connects to the links of the wireless access devices.
  • the access device sends a PDCP PDU.
  • the primary radio access device receives the PDCP PDU and sends a PDCP status report to the UE.
  • the UE receives the PDCP status report sent by the primary radio access device; when the radio access device includes the primary radio access device and the secondary radio access device, the PDCP status report is used to indicate that the UE notification corresponds to the primary radio access device.
  • the PDCP status report is used to instruct the UE to notify the SN corresponding to the PDCP PDU correctly received by the RLC layer corresponding to each secondary wireless access device performing the multiplexing operation, and stop the correctly received PDCP PDU.
  • ARQ of the RLC PDU corresponding to the RLC layer When the device includes the secondary wireless access device, the PDCP status report is used to instruct the UE to notify the SN corresponding to the PDCP PDU correctly received by the RLC layer corresponding to each secondary wireless access device performing the multiplexing operation, and stop the correctly received PDCP PDU.
  • the primary radio access device may periodically send a PDCP status report to the UE.
  • the UE sends a PDCP PDU to the primary radio access device and a secondary radio access device.
  • the PDCP layer of the UE receives 5 UL packets and generates PDCP PDU1/2/3/4/5.
  • the PDCP layer of the UE transmits the PDCP PDU 1/2/3/4/5 to the primary radio access device through the RLC layer/MAC layer/PHY layer corresponding to the primary radio access device, and the PDCP layer of the UE passes the secondary radio access device
  • the corresponding RLC layer/MAC layer/PHY layer transmits PDCP PDU1/2/3/4/5 to each secondary wireless access device.
  • the primary radio access device correctly receives the PDCP PDU 1/4/5
  • the secondary radio access device correctly receives the PDCP PDU 2/5
  • the secondary radio access device forwards the correctly received PDCP PDU 2/5 to the main through the Xn interface.
  • the PDCP layer of the primary radio access device reorders the received PDCP PDU and repeats packet detection to determine that the PDCP PDU 1/2/4/5 is correctly received.
  • the primary radio access device may send a PDCP status report to the UE to notify that the PDCP PDU with the SN is 1/2/4/5 is correctly received, and the PDCP layer of the UE notifies the SN of the RLC corresponding to the primary radio access device.
  • the layer indicates that the RLC layer stops the ARQ of the RLC PDU corresponding to the PDCP PDU of the 1/2/4/5 in the RLC layer; the PDCP layer of the UE notifies the RLC layer corresponding to the secondary radio access device, indicating that the RLC layer stops.
  • the SN is the ARQ of the 1/2/4/5 PDCP PDU at the RLC layer corresponding to the RLC PDU, thereby reducing unnecessary resource waste.
  • the data transmission method when the UE performs the multiplexing operation, the UE transmits the same data through multiple links, so that the link signal quality chain with multiple links can be passed through multiple links.
  • the path is used to improve the reliability of the data transmission; when the UE performs the transform operation, the UE selects one link from the multiple links, and since the quality of the selected link is generally good, the reliability of the data transmission can also be improved. Therefore, the problem that the existing data can only be transmitted through a single link and the reliability of the URLLC data transmission cannot be guaranteed can be solved to meet the requirements of the URLLC service.
  • the primary radio access device sends deactivation indication information to the UE to instruct the UE to stop the processing operation, thereby saving additional resource overhead caused by transmitting data through the processing operation.
  • the UE sends the capability information to the radio access device to indicate whether it supports the processing operation. After determining that the UE supports the processing operation, the radio access device sends the first indication information to the UE, so as to avoid sending the UE to the UE when the UE does not support the processing operation. The waste of resources caused by the first indication information.
  • FIG. 10 shows a block diagram of a data transmission apparatus according to an embodiment of the present invention.
  • the data transmission device can be implemented as all or part of the UE by software, hardware or a combination of both.
  • the data transmission device may include: a receiving unit 1010 and an executing unit 1020.
  • the receiving unit 1010 is configured to implement the functions of step 505 described above.
  • the executing unit 1020 is configured to implement the function of step 506 above.
  • the data transmission device may further include a first sending unit, configured to implement the function of step 501.
  • the data transmission apparatus may further include a first determining unit, configured to determine, as the serving cell that performs the multiplexing operation, the serving cell that sends the downlink data to the UE.
  • a first determining unit configured to determine, as the serving cell that performs the multiplexing operation, the serving cell that sends the downlink data to the UE.
  • the data transmission apparatus may further include a second determining unit, configured to determine, as the wireless access device that performs the multiplexing operation, the wireless access device that sends the downlink data to the UE.
  • a second determining unit configured to determine, as the wireless access device that performs the multiplexing operation, the wireless access device that sends the downlink data to the UE.
  • the foregoing receiving unit 1010 may be implemented by a transceiver in the UE; the foregoing execution unit 1020, the first determining unit, and the second determining unit may be implemented by a processor in the UE.
  • FIG. 11 shows a block diagram of a data transmission apparatus according to an embodiment of the present invention.
  • the data transmission device can be implemented as all or part of the primary wireless access device by software, hardware or a combination of both.
  • the data transmission device may include: a generating unit 1110 and a transmitting unit 1120.
  • the generating unit 1110 is configured to implement the function of step 503 above.
  • the sending unit 1120 is configured to implement the function of step 504 described above.
  • the data transmission device may further include a first receiving unit, configured to receive configuration information of the SRB sent by the secondary wireless access device.
  • the data transmission device may further include a second receiving unit, configured to implement the function of step 502.
  • the foregoing generating unit 1110 may be implemented by a processor in the primary wireless access device; the foregoing sending unit 1120, the first receiving unit, and the second receiving unit may pass through a transceiver in the primary wireless access device. to realise.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit may be only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined. Or it can be integrated into another system, or some features can be ignored or not executed.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

Abstract

一种数据传输方法及装置，方法包括：UE接收无线接入设备发送的第一指示信息，第一指示信息为激活指示信息或去激活指示信息，当第一指示信息为激活指示信息时，UE执行处理操作，当第一指示信息为去激活指示信息时，UE停止处理操作，处理操作包括复用操作和变换操作中的至少一种；其中，复用操作是指将同一数据通过多条链路传输；变换操作是指从多条链路中选择一条链路进行数据传输。上述方法可以提高数据传输的可靠性，且在不需要执行处理操作时，节省通过处理操作传输数据所造成的额外资源开销。

Description

数据传输方法及装置
本申请要求于2017年01月05日提交中国国家知识产权局、申请号为201710007875.8、发明名称为“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。
技术领域
本发明涉及通信技术领域，特别涉及一种数据传输方法及装置。
背景技术
第三代合作伙伴计划(3rd Generation Partnership Project；3GPP)版本12(Release 12；R12)中引入了双连接(Dual Connectivity；DC)场景，即，用户设备(User Equipment；UE)同时连接到一个宏基站(Macro eNode B；MeNB)和一个微基站(Small eNode B；SeNB)，并同时与两个基站进行数据传输。
DC场景中，在控制平面，UE与MeNB建立信令无线承载(Signaling Radio Bearer；SRB)；在用户平面，UE分别与MeNB和SeNB建立数据无线承载(Data Radio Bearer；DRB)。其中，DRB包括DRB辅小区群承载(Secondary Cell Group bearer)和DRB分流承载(split bearer)。辅小区群承载指将用户对应的某一演进分组系统(Evolved Packet System；EPS)承载上的数据全部分流至SeNB。分流承载指MeNB将用户对应的某一EPS承载上的部分数据走MeNB，部分数据分流至SeNB。
当DC场景应用于第五代移动通信技术(5th Generation；5G)系统中时，由于5G系统引入了超高可靠性低时延通信(Ultra Reliable Low Latency Communications；URLLC)
业务，而URLLC业务的需求是数据传输时延小于0.5ms、数据传输的成功率大于等于99.99％，现有的数据传输方案无法满足URLLC业务的需求。
发明内容
为了解决现有的数据传输方案无法满足URLLC业务的需求的问题，本申请提供了一种数据传输方法及装置。
第一方面，提供了一种数据传输方法，该方法包括：UE接收无线接入设备发送的第一指示信息，第一指示信息为激活指示信息或去激活指示信息，激活指示信息用于指示UE执行处理操作，去激活指示信息用于指示UE停止处理操作，处理操作包括复用操作和变换操作中的至少一种；当第一指示信息为激活指示信息时，UE执行处理操作；当第一指示信息为去激活指示信息时，UE停止处理操作；其中，复用操作是指将同一数据通过多条链路传输；变换操作是指从多条链路中选择一条链路进行数据传输。
当UE执行复用操作时，UE通过多条链路传输同一数据，这样，可以通过多条链路中链路信号质量较好的链路来提高该数据传输的可靠性；当UE执行变换操作时，UE从多条链路中选择一条链路进行数据传输，由于选择的链路的质量通常较好，这样，也可以提高 该数据传输的可靠性；从而解决了现有数据单链路传输无法保证URLLC高可靠性的问题，以满足URLLC业务的需求。
在不需要执行处理操作时，无线接入设备向UE发送去激活指示信息，以指示UE停止处理操作，从而节省通过处理操作传输数据所造成的额外资源开销。
在第一方面的第一种可能的实现方式中，该方法，还包括：UE接收无线接入设备发送的执行条件，执行条件用于供UE确定是否执行处理操作；此时，UE执行处理操作，包括：当UE满足执行条件时，UE执行处理操作。
在第一方面的第二种可能的实现方式中，UE接收无线接入设备发送的第一门限值；此时，UE执行处理操作，包括：UE确定待发送的上行数据的数据量；当数据量小于第一门限值时，UE执行复用操作；当数据量大于第一门限值时，UE执行变换操作；或者，当数据量大于第一门限值时，UE执行复用操作；当数据量小于第一门限值时，UE执行变换操作。
当上行数据的数据量较大时，在多条链路上发送同一数据会造成资源浪费，因此，在数据量小于第一门限值时，才在多条链路上发送同一数据，在节省资源的同时，保证了数据传输的可靠性；当上行数据的数据量较大时，选择一条链路进行上行数据传输，以保证上行数据的传输可靠性。
在第一方面的第三种可能的实现方式中，该方法，还包括：UE接收无线接入设备发送的第二指示信息，第二指示信息用于指示基于链路建立的SRB和/或基于链路建立的DRB，且第二指示信息和第一指示信息绑定；此时，UE执行处理操作，包括：当第二指示信息用于指示SRB时，UE选择SRB对应的链路执行处理操作；当第二指示信息用于指示DRB时，UE选择DRB对应的链路执行处理操作。
结合第一方面的第三种可能的实现方式，在第一方面的第四种可能的实现方式中，该方法，还包括：UE接收无线接入设备发送的DRB标识；此时，UE选择DRB对应的链路执行处理操作，包括：UE选择DRB标识指示的DRB所对应的链路执行处理操作。其中，该DRB标识和第一指示信息绑定。
可选的，UE还接收主无线接入设备发送的SRB标识选择SRB标识指示的SRB所对应的链路执行处理操作。其中，该SRB标识和第一指示信息绑定。
在第一方面的第五种可能的实现方式中，在UE接收无线接入设备发送的第一指示信息之前，还包括：UE向主无线接入设备发送UE的能力信息，能力信息用于指示UE是否支持处理操作。
UE向无线接入设备发送能力信息来指示自身是否支持处理操作，无线接入设备在确定UE支持处理操作后，向UE发送第一指示信息，避免了在UE不支持处理操作时，向UE发送第一指示信息所造成的资源浪费。
结合第一方面至第一方面的第五种可能的实现方式中的任一种实现方式，在第一方面的第六种可能的实现方式中，当无线接入设备应用于载波聚合(Carrier Aggregation；CA)场景时，该方法，还包括：UE接收主无线接入设备发送的小区标识信息，将小区标识信息所指示的服务小区确定为进行复用操作的服务小区；或者，UE接收无线接入设备发送的小区数量和第二门限值，选择链路信号质量大于第二门限值的服务小区作为进行复用操作的服务小区，所选的所有服务小区的总数量不超过小区数量；或者，UE将向UE发送下行数 据的服务小区确定为进行复用操作的服务小区。
选择链路信号质量大于第二门限值的服务小区作为进行复用操作的服务小区，可以进一步提高数据传输的可靠性。
结合第一方面至第一方面的第五种可能的实现方式中的任一种实现方式，在第一方面的第七种可能的实现方式中，当无线接入设备应用于DC场景或多连接(Multiple Connectivity；MC)MC场景时，无线接入设备为主无线接入设备时，该方法，还包括：UE接收主无线接入设备发送的辅无线接入设备标识信息，将辅无线接入设备标识信息所指示的辅无线接入设备确定为进行复用操作的无线接入设备；或者，UE接收主无线接入设备发送的无线接入设备数量和第三门限值，选择链路信号质量大于第三门限值的无线接入设备作为进行复用操作的无线接入设备，所选的所有无线接入设备的总数量不超过无线接入设备数量；或者，UE将向UE发送下行数据的无线接入设备确定为进行复用操作的无线接入设备。
选择链路信号质量大于第三门限值的无线接入设备作为进行复用操作的无线接入设备，可以进一步提高数据传输的可靠性。
结合第一方面的第七种可能的实现方式，在第一方面的第八种可能的实现方式中，当执行复用操作时，该方法，还包括：UE分别向主无线接入设备和各个辅无线接入设备发送第一缓存状态报告(Buffer State Reports；BSR)，第一BSR包含主无线接入设备的分组数据汇聚协议(Packet Data Convergence Protocol；PDCP)层的数据量乘以执行复用操作的无线接入设备的数量之积、以及主无线接入设备和各个辅无线接入设备各自对应的无线链路控制(Radio Link Control；RLC)层的数据量之和。
结合第一方面的第七种可能的实现方式，在第一方面的第九种可能的实现方式中，当执行复用操作时，该方法，还包括：UE接收无线接入设备发送的上行链路(Up Link；UL)授权grant，无线接入设备是主无线接入设备或者各个辅无线接入设备中的一个辅无线接入设备；UE在UL grant指示的上行资源上向无线接入设备发送第二BSR；第二BSR包含主无线接入设备的PDCP层的数据量乘以执行复用操作的无线接入设备的数量之积、以及主无线接入设备和各个辅无线接入设备各自的RLC层的数据量之和；或者，第二BSR包含主无线接入设备的PDCP层的数据量与每个辅无线接入设备的RLC层的数据量之和、以及主无线接入设备的PDCP层和RLC层的数据量之和中的最小值。
结合第一方面的第七种可能的实现方式，在第一方面的第十种可能的实现方式中，当执行复用操作时，该方法，还包括：UE向主无线接入设备发送第三BSR，并向各个辅无线接入设备发送第四BSR，第三BSR包含主无线接入设备的PDCP层和RLC层的数据量之和，第四BSR包含主无线接入设备的PDCP层的数据量与辅无线接入设备的RLC层的数据量之和。
结合第一方面的第七种可能的实现方式，在第一方面的第十一种可能的实现方式中，当执行复用操作时，该方法，还包括：UE接收各个无线接入设备在各自的链路上发送的PDCP协议数据单元(Protocol Data Unit；PDU)；UE向主无线接入设备发送PDCP状态报告，当无线接入设备包括主无线接入设备时，PDCP状态报告用于指示主无线接入设备通知主无线接入设备的RLC层和执行复用操作的各个辅无线接入设备的RLC层正确接收的PDCP PDU对应的序列号(Sequence Number；SN)，并停止正确接收的PDCP PDU在RLC 层对应的RLC PDU的自动重传请求(Automatic Repeat reQuest；ARQ)；当无线接入设备不包括主无线接入设备时，PDCP状态报告用于指示主无线接入设备通知执行复用操作的各个辅无线接入设备的RLC层正确接收的PDCP PDU对应的SN，并停止正确接收的PDCP PDU在RLC层对应的RLC PDU的ARQ。
在进行复用操作时，UE在多条链路上接收相同的PDCP PDU，而UE向主无线接入设备上报PDCP状态报告，为了节省空口开销，减少数据传输时延，主无线接入设备的PDCP层除了需要通知主无线接入设备的RLC层停止正确接收的PDCP PDU在RLC层对应的RLC PDU的ARQ，还需要通知执行复用操作的各个辅无线接入设备的RLC层停止正确接收的PDCP PDU在辅无线接入设备的RLC层对应的RLC PDU。
结合第一方面的第七种可能的实现方式，在第一方面的第十二种可能的实现方式中，当执行复用操作时，该方法，还包括：UE在各个无线接入设备的链路上向无线接入设备发送PDCP PDU；UE接收主无线接入设备发送的PDCP状态报告，当无线接入设备包括主无线接入设备和辅无线接入设备时，PDCP状态报告用于指示UE通知与主无线接入设备对应的RLC层和与执行复用操作的各个辅无线接入设备对应的RLC层正确接收的PDCP PDU对应的SN，并停止正确接收的PDCP PDU在RLC层对应的RLC PDU的ARQ；当无线接入设备包括辅无线接入设备时，PDCP状态报告用于指示UE通知与执行复用操作的各个辅无线接入设备对应的RLC层正确接收的PDCP PDU对应的SN，并停止正确接收的PDCP PDU在RLC层对应的RLC PDU的ARQ。
在进行复用操作时，UE在多条链路上发送相同的PDCP PDU，而主无线接入设备向UE上报PDCP状态报告，为了节省空口开销，减少数据传输时延，UE的PDCP层除了需要通知与主无线接入设备对应的RLC层停止正确接收的PDCP PDU在RLC层对应的RLC PDU的ARQ，还需要通知与执行复用操作的各个辅无线接入设备对应的RLC层停止正确接收的PDCP PDU在辅无线接入设备的RLC层对应的RLC PDU。
在第一方面的第十三种实现方式中，预定规则为：选择质量最好的链路，或选择传输速度最快的链路，或选择链路质量最稳定的链路。
第二方面，提供了一种数据传输方法，该方法包括：无线接入设备生成第一指示信息，第一指示信息为激活指示信息或去激活指示信息，激活指示信息用于指示用户设备UE执行处理操作，去激活指示信息用于指示UE停止处理操作，处理操作包括复用操作和变换操作中的至少一种；向UE发送第一指示信息；其中，复用操作是指将同一数据通过多条链路传输；变换操作是指从多条链路中选择一条链路进行数据传输。
当UE执行复用操作时，UE通过多条链路传输同一数据，这样，可以通过多条链路中链路信号质量较好的链路来提高该数据传输的可靠性；当UE执行变换操作时，UE从多条链路中选择一条链路进行数据传输，由于选择的链路的质量通常较好，这样，也可以提高该数据传输的可靠性；从而解决了现有数据单链路传输无法保证URLLC的高可靠性的问题，以满足URLLC业务的需求。
在不需要执行处理操作时，主无线接入设备向UE发送去激活指示信息，以指示UE停止处理操作，从而节省通过处理操作传输数据所造成的额外资源开销。
在第二方面的第一种可能的实现方式中，该方法，还包括：无线接入设备向UE发送执行条件，执行条件用于供UE确定是否执行处理操作。
在第二方面的第二种可能的实现方式中，无线接入设备向UE发送第一门限值，第一门限值用于供UE确定是执行复用操作还是执行变换操作。
在第二方面的第三种可能的实现方式中，该方法，还包括：无线接入设备向UE发送第二指示信息，第二指示信息和第一指示信息绑定；第二指示信息用于指示基于链路建立的SRB和/或基于链路建立的DRB。
结合第二方面的第三种可能的实现方式，在第二方面的第四种可能的实现方式中，该方法，还包括：当无线接入设备应用于DC场景或MC场景时，无线接入设备是主无线接入设备，主无线接入设备向辅无线接入设备发送第三指示信息，第三指示信息用于指示辅无线接入设备对SRB进行无线资源的配置；主无线接入设备接收辅无线接入设备发送的SRB的配置信息；主无线接入设备将配置信息发送给UE。
由于5G系统中的新空口(New Radio；NR)工作在高频，存在严重的阴影效应和急剧的信道变化条件，可能会导致频繁的无线链路失效(Radio Link Failure；RLF)，控制平面的可靠性得不到保证；而本实施例中，UE不仅与主无线接入设备建立RRC连接，还与辅无线接入设备建立RRC连接，从而保证了控制平面的可靠性。
结合第二方面的第三种可能的实现方式，在第二方面的第五种可能的实现方式中，该方法，还包括：无线接入设备向UE发送DRB标识，选择DRB标识指示的DRB所对应的链路执行处理操作。其中，该DRB标识和第一指示信息绑定。
可选的，无线接入设备还向UE发送SRB标识，选择SRB标识指示的SRB所对应的链路执行处理操作。其中，该SRB标识和第一指示信息绑定。
在第二方面的第六种可能的实现方式中，该方法，还包括：无线接入设备接收UE发送的能力信息，能力信息用于指示UE是否支持处理操作。
UE向无线接入设备发送能力信息来指示自身是否支持处理操作，无线接入设备在确定UE支持处理操作后，向UE发送第一指示信息，避免了在UE不支持处理操作时，向UE发送第一指示信息所造成的资源浪费。
结合第二方面至第二方面的第六种可能的实现方式中的任一种实现方式，在第二方面的第七种可能的实现方式中，当无线接入设备应用于CA场景时，该方法，还包括：无线接入设备向UE发送小区标识信息，小区标识信息所指示的服务小区为进行复用操作的服务小区；或者，无线接入设备向UE发送小区数量和第二门限值，链路信号质量大于第二门限值的服务小区为进行复用操作的服务小区，且所选的所有服务小区的总数量不超过小区数；或者，无线接入设备向UE发送下行数据，向UE发送下行数据的服务小区为进行复用操作的服务小区。
选择链路信号质量大于第二门限值的服务小区作为进行复用操作的服务小区，可以进一步提高数据传输的可靠性。
结合第二方面至第二方面的第六种可能的实现方式中的任一种实现方式，在第二方面的第八种可能的实现方式中，当无线接入设备应用于DC场景或MC场景时，无线接入设备为主无线接入设备，该方法，还包括：主无线接入设备向UE发送辅无线接入设备标识信息，辅无线接入设备标识信息所指示的辅无线接入设备为进行复用操作的无线接入设备；或者，主无线接入设备向UE发送无线接入设备数量和第三门限值，链路信号质量大于第三门限值的无线接入设备作为进行复用操作的无线接入设备，且所选的所有无线接入设备的总数量 不超过无线接入设备数量；或者，主无线接入设备向UE发送下行数据，向UE发送下行数据的无线接入设备为进行复用操作的无线接入设备。
选择链路信号质量大于第三门限值的无线接入设备作为进行复用操作的无线接入设备，可以进一步提高数据传输的可靠性。
结合第二方面的第八种可能的实现方式，在第二方面的第九种可能的实现方式中，当执行复用操作时，该方法，还包括：主无线接入设备接收UE发送的第一BSR，第一BSR包含主无线接入设备的PDCP层的数据量乘以执行复用操作的无线接入设备的数量之积、以及主无线接入设备和各个辅无线接入设备各自对应的RLC层的数据量之和；与接收第一BSR的各个辅无线接入设备进行UE的上行资源的协商。
结合第二方面的第八种可能的实现方式，在第二方面的第十种可能的实现方式中，当执行复用操作时，该方法，还包括：主无线接入设备接收UE发送的第二BSR；当第二BSR包含主无线接入设备的PDCP层的数据量乘以执行复用操作的无线接入设备的数量之积、以及主无线接入设备和各个辅无线接入设备各自的RLC层的数据量之和时，主无线接入设备根据第二BSR确定为UE分配的上行资源，并将第二BSR的数值减去上行资源的数值得到剩余上行资源请求量，将剩余上行资源请求量发送给辅无线接入设备，剩余上行资源请求量用于指示辅无线接入设备确定为UE分配的上行资源；当第二BSR包含主无线接入设备的PDCP层的数据量与每个辅无线接入设备的RLC层的数据量之和、以及主无线接入设备的PDCP层和RLC层的数据量之和中的最小值时，主无线接入设备根据第二BSR确定为UE分配的上行资源，并将第二BSR转发给各个辅无线接入设备，第二BSR用于指示各个辅无线接入设备确定为UE分配的上行资源。
结合第二方面的第八种可能的实现方式，在第二方面的第十一种可能的实现方式中，当执行复用操作时，该方法，还包括：主无线接入设备接收各个辅无线接入设备中的一个辅无线接入设备发送的剩余上行资源请求量，剩余上行资源请求量是辅无线接入设备将UE发送的第二BSR中的数值减去辅无线接入设备为UE分配的上行资源的数值得到的；根据剩余上行资源请求量确定为UE分配的上行资源；或者，主无线接入设备接收各个辅无线接入设备中的一个辅无线接入设备发送的第二BSR，第二BSR是UE向辅无线接入设备发送的第二BSR；根据第二BSR确定为UE分配的上行资源；其中，辅无线接入设备是向UE发送UL grant的辅无线接入设备，且UE用于在UL grant指示的上行资源上向辅无线接入设备发送第二BSR。
结合第二方面的第八种可能的实现方式，在第二方面的第十二种可能的实现方式中，当执行复用操作时，该方法，还包括：主无线接入设备接收UE发送的第三BSR，第三BSR包含主无线接入设备的PDCP层和RLC层的数据量之和；根据第三BSR确定为UE分配的上行资源。
结合第二方面的第八种可能的实现方式，在第二方面的第十三种可能的实现方式中，当执行复用操作时，该方法，还包括：主无线接入设备接收UE发送的PDCP状态报告；当主无线接入设备在链路上向UE发送了PDCP PDU时，主无线接入设备通知主无线接入设备的RLC层和执行复用操作的各个辅无线接入设备的RLC层UE正确接收的PDCP PDU对应的SN，并停止正确接收的PDCP PDU在RLC层对应的RLC PDU的ARQ；当主无线接入设备未向UE发送PDCP PDU时，主无线接入设备通知执行复用操作的各个辅无线接 入设备的RLC层UE正确接收的PDCP PDU对应的序列号SN，并停止正确接收的PDCP PDU在RLC层对应的RLC PDU的ARQ。
在进行复用操作时，UE在多条链路上接收相同的PDCP PDU，而UE向主无线接入设备上报PDCP状态报告，为了节省空口开销，减少数据传输时延，主无线接入设备的PDCP层除了需要通知主无线接入设备的RLC层停止正确接收的PDCP PDU在RLC层对应的RLC PDU的ARQ，还需要通知各个辅无线接入设备的RLC层停止正确接收的PDCP PDU在辅无线接入设备的RLC层对应的RLC PDU。
结合第二方面的第八种可能的实现方式，在第二方面的第十四种可能的实现方式中，当执行复用操作时，该方法，还包括：主无线接入设备接收PDCP PDU；主无线接入设备向UE发送PDCP状态报告，当PDCP PDU由UE和执行复用操作的各个辅无线接入设备在各自的链路上发送时，PDCP状态报告用于指示UE通知与主无线接入设备对应的RLC层和与执行复用操作的各个辅无线接入设备对应的RLC层正确接收的PDCP PDU对应的SN，并停止正确接收的PDCP PDU在RLC层对应的RLC PDU的ARQ；当PDCP PDU由执行复用操作的各个辅无线接入设备在各自的链路上发送时，PDCP状态报告用于指示UE通知与执行复用操作的各个辅无线接入设备对应的RLC层正确接收的PDCP PDU对应的SN，并停止正确接收的PDCP PDU在RLC层对应的RLC PDU的ARQ。
在进行复用操作时，UE在多条链路上发送相同的PDCP PDU，而主无线接入设备向UE上报PDCP状态报告，为了节省空口开销，减少数据传输时延，UE的PDCP层除了需要通知与主无线接入设备对应的RLC层停止正确接收的PDCP PDU在RLC层对应的RLC PDU的ARQ，还需要通知与执行复用操作的各个辅无线接入设备对应的RLC层停止正确接收的PDCP PDU在辅无线接入设备的RLC层对应的RLC PDU。
第三方面，提供了一种数据传输装置，该装置包括至少一个单元，该至少一个单元用于实现上述第一方面或第一方面的至少一种实现中所提供的数据传输方法。
第四方面，提供了一种数据传输装置，该装置包括至少一个单元，该至少一个单元用于实现上述第二方面或第二方面的至少一种实现中所提供的数据传输方法。
第五方面，提供了一种数据传输装置，该装置包括：处理器、以及与处理相连的收发器；该收发器被配置为由处理器控制，该处理器用于实现上述第一方面或第一方面的至少一种实现中所提供的数据传输方法。
第六方面，提供了一种数据传输装置，该装置包括：处理器、以及与处理相连的收发器；该收发器被配置为由处理器控制，该处理器用于实现上述第二方面或第二方面的至少一种实现中所提供的数据传输方法。
附图说明
图1是本发明一示例性实施例提供的数据传输系统结构示意图；
图2是本发明一示例性实施例提供的1A架构的结构示意图；
图3是本发明一示例性实施例提供的3C架构的结构示意图；
图4是本发明一示例性实施例提供的电子设备的结构示意图；
图5是本发明一示例性实施例提供的数据传输方法的流程图；
图6是本发明一示例性实施例提供的BSR上报的第一种示意图；
图7是本发明一示例性实施例提供的BSR上报的第二种示意图；
图8是本发明一示例性实施例提供的BSR上报的第三种示意图；
图9是本发明一示例性实施例提供的BSR上报的第四种示意图；
图10是本发明一示例性实施例提供的数据传输装置的结构图；
图11是本发明一示例性实施例提供的数据传输装置的结构图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。
在本文中提及的“单元”是指按照逻辑划分的功能性结构，该“单元”可以由纯硬件实现，或者，软硬件的结合实现。
请参考图1，其示出了本发明一示例性实施例提供的数据传输系统100的示意图，该数据传输系统100包括主无线接入设备110、至少一个辅无线接入设备120和UE130。
当数据传输系统100包括一个辅无线接入设备120时，对应于DC场景，此时，主无线接入设备110和辅无线接入设备120之间建立链路、辅无线接入设备120和UE130之间建立链路、主无线接入设备110和UE130之间建立链路。当数据传输系统100包括至少两个辅无线接入设备120时，对应于MC场景，主无线接入设备110和每个辅无线接入设备120之间建立链路、每个辅无线接入设备120和UE130之间建立链路、每个辅无线接入设备120之间建立链路、主无线接入设备110和UE130之间建立链路。其中，主无线接入设备110可以称为M-gNB(Master gNB)，辅无线接入设备120可以成为S-gNB(Secondary gNB)。图1中仅以数据传输系统100包括一个辅无线接入设备130进行举例说明。
本实施例中，在控制平面，UE130分别与主无线接入设备110和辅无线接入设备120建立SRB，具体建立过程详见下文描述；在用户平面，UE130分别与主无线接入设备110和辅无线接入设备120建立DRB，且DRB包括SCG bearer和split bearer。
SCG bearer应用于1A架构中。请参考图2，在1A架构中，MeNB包括物理(PHY)层、位于PHY层之上的媒体接入控制(Medium Access Control；MAC)层、位于MAC层之上的RLC层、位于RLC层之上的PDCP层；SeNB包括PHY层、位于PHY层之上的MAC层、位于MAC层之上的RLC层、位于RLC层之上的PDCP层。网络侧分别与MeNB和SeNB建立S1连接。
split bearer应用于3C架构中。请参考图3，在3C架构中，MeNB包括PHY层、位于PHY层之上的MAC层、位于MAC层之上的RLC层、位于RLC层之上的PDCP层；SeNB包括PHY层、位于PHY层之上的MAC层、位于MAC层之上的RLC层，且SeNB中的RLC层与MeNB中的PDCP层通过Xn接口连接。网络侧与MeNB建立S1连接。
当数据传输系统100对应于CA场景时，数据传输系统100可以包括无线接入设备140和UE130。
请参考图4，其示出了本发明一示例性实施例示出的电子设备400的结构示意图。该电子设备400可以是图1中所示出的主无线接入设备110或辅无线接入设备120或UE130或 无线接入设备140，该电子设备400包括：处理器410、与处理器410相连的收发器420。
该收发器420可由一个或多个天线组成，该天线使得电子设备能够发送或接收无线电信号。
收发器420可连接至通信电路430，该通信电路430可对经由收发器420接收或经由收发器420发送的信号执行各种处理，如：调制经由收发器420发送的信号，解调经由收发器420接收的信号，在实际实现时，该通信电路430可由射频(radio frequency；RF)芯片和基带芯片组成。
通信电路430可连接至处理器410。可替换的该通信电路430也可集成在处理器410中。处理器410是电子设备的控制中心，该处理器410可以是中央处理器(central processing unit；CPU)，网络处理器(network processor；NP)或者CPU和NP的组合。处理器410还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(application-specific integrated circuit；ASIC)，可编程逻辑器件(programmable logic device；PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device；CPLD)，现场可编程逻辑门阵列(field-programmable gate array；FPGA)，通用阵列逻辑(generic array logic；GAL)或其任意组合。
存储器440用总线或其它方式与处理器410相连，存储器440可以为易失性存储器(volatile memory)，非易失性存储器(non-volatile memory)或者它们的组合。易失性存储器可以为随机存取存储器(random-access memory；RAM)，例如静态随机存取存储器(static random access memory，SRAM)，动态随机存取存储器(dynamic random access memory；DRAM)。非易失性存储器可以为只读存储器(read only memory image；ROM)，例如可编程只读存储器(programmable read only memory；PROM)，可擦除可编程只读存储器(erasable programmable read only memory；EPROM)，电可擦除可编程只读存储器(electrically erasable programmable read-only memory；EEPROM)。非易失性存储器也可以为快闪存储器(flash memory)，磁存储器，例如磁带(magnetic tape)，软盘(floppy disk)，硬盘。非易失性存储器也可以为光盘。
本实施例中，当数据传输系统包括主无线接入设备和辅无线接入设备时，在UE与主无线接入设备和辅无线接入设备通信之前，主无线接入设备还需要配置SRB和DRB，并指示每个辅无线接入设备配置SRB和DRB，每个辅无线接入设备配置SRB和DRB的流程相同。其中，主无线接入设备配置SRB和DRB的技术已经非常成熟，可以参照相关技术中的描述，本实施例不再赘述，此处主要对主无线接入设备指示每个辅无线接入设备配置SRB和DRB的流程进行介绍。为了便于说明，本实施例以主无线接入设备指示一个辅无线接入设备配置SRB和DRB进行举例说明。
主无线接入设备指示辅无线接入设备进行SRB和/或DRB的无线资源的配置，辅无线接入设备根据主无线接入设备的指示对SRB和/或DRB进行无线资源的配置，并将生成的配置信息通过主无线接入设备发送给UE。其中，表一是主无线接入设备向辅无线接入设备发送的配置请求，表二是辅无线接入设备反馈的配置响应。
表一
Figure PCTCN2018071244-appb-000001
Figure PCTCN2018071244-appb-000002
表二
Figure PCTCN2018071244-appb-000003
其中，配置请求可以通过辅无线接入设备增加请求(S-gNB addition request)消息来实现，配置响应可以通过辅无线接入设备增加响应(S-gNB addition response)消息来实现。
现有机制中，DRB type指DRB的承载类型，包括split和SCG，主无线接入设备通过枚举类型来指示辅无线接入设备配置split bearer或SCG bearer。
同理，主无线接入设备也可以使用相同的方式，来指示辅无线接入设备进行SRB的配置。比如，主无线接入设备配置有SRB1和SRB2，SRB1通过SRB ID1来标识，SRB2通过SRB ID2来标识，则主无线接入设备根据SRB ID以及配置指示来指示辅无线接入设备对SRB ID对应的SRB进行无线资源的配置。或者，主无线接入设备直接向辅无线接入设备发送SRB ID，辅无线接入设备收到该标识后，对SRB ID对应的SRB进行无线资源的配置。 即，表一中的配置指示是可选参数。
需要说明的是，配置指示能够指示主无线接入设备支持复用操作和/或变换操作。
当数据传输系统应用在5G系统中时，NR工作在高频，存在严重的阴影效应和急剧的信道变化条件，可能会导致频繁的RLF，控制平面的可靠性得不到保证。而本实施例中，UE不仅与主无线接入设备建立RRC连接，还与辅无线接入设备建立RRC连接，从而保证了控制平面的可靠性。
请参考图5，其示出了本发明一示例性实施例提供的数据传输方法的流程图。本实施例以该方法用于如图1所示的数据传输系统中来举例说明，由无线接入设备110和UE130执行下述步骤，该方法包括以下几个步骤：
步骤501，UE向无线接入设备发送UE的能力信息，能力信息用于指示UE是否支持处理操作。
处理操作包括复用操作和变换操作中的至少一种。
复用操作是指将同一数据通过多条链路传输，这里的复用操作也可以称为duplication操作。比如，当无线接入设备应用于DC场景或MC场景时，数据传输系统包括主无线接入设备和辅无线接入设备，UE与一个主无线接入设备和n(n为正整数)个辅无线接入设备建立链路，UE可以通过主无线接入设备的链路和多个辅无线接入设备的链路发送相同的上行数据；或者，UE可以通过主无线接入设备的链路和多个辅无线接入设备的链路接收相同的下行数据。又比如，当无线接入设备应用于CA场景时，数据传输系统包括无线接入设备，UE与无线接入设备的多个服务小区建立链路，UE通过多条链路发送相同的上行数据；或者，UE可以通过多条链路接收相同的下行数据。
变换操作是指从多条链路中选择一条链路进行数据传输，这里的变换操作也可以称为switching操作。比如，当无线接入设备应用于DC场景或MC场景时，数据传输系统包括主无线接入设备和辅无线接入设备，UE与一个主无线接入设备和n(n为正整数)个辅无线接入设备建立链路，从多条链路中选择一条链路发送上行数据或者接收下行数据。又比如，当无线接入设备应用于CA场景时，数据传输系统包括无线接入设备，UE与无线接入设备的多个服务小区建立链路，UE从多条链路中选择一条链路发送上行数据或者接收下行数据。
可选的，变换操作还可以指根据预定规则，从多条链路中选择一条链路进行数据传输。预定规则可以为：选择质量最好的链路，或选择传输速度最快的链路，或选择链路质量最稳定的链路。这样，UE可以根据需求选择一条链路，从而提高数据传输的可靠性或传输速度。
由于某些UE支持处理操作，某些UE不支持处理操作，因此，UE还需要在生成的能力信息中指示自身是否支持处理操作，并将能力信息发送给无线接入设备，以便无线接入设备能够明确UE是否支持处理操作。
步骤502，无线接入设备接收UE发送的能力信息。
步骤503，无线接入设备生成第一指示信息，第一指示信息为激活指示信息或去激活指示信息。
激活指示信息用于指示UE执行处理操作，去激活指示信息用于指示UE停止处理操作， 这样，可以在不需要执行处理操作，指示UE停止处理操作，从而节省通过处理操作传输数据所造成的资源浪费。
步骤504，无线接入设备向UE发送第一指示信息。
无线接入设备可以将第一指示信息携带在MAC控制元素(Control Element；CE)或RRC消息中发送给UE；或者，无线接入设备可以将第一指示信息携带在其他消息中发送给UE；或者，无线接入设备可以单独发送第一指示信息，本实施例不作限定。
步骤505，UE接收无线接入设备发送的第一指示信息。
步骤506，第一指示信息为激活指示信息，UE执行处理操作；或者，第一指示信息为去激活指示信息，UE停止处理操作。
需要特别说明的是，作为另一种实现可能，在本发明的各个实施例中，第一指示信息为激活指示信息时，UE执行处理操作的方案和第一指示信息为去激活指示信息时，UE停止处理操作的方案是并列的，没有执行顺序的限定。第一指示信息为去激活指示信息，UE停止处理操作时，第一指示信息为激活指示信息时，UE执行处理操作为可选实现方案；同样，第一指示信息为激活指示信息，UE执行处理操作时，第一指示信息为去激活指示信息，UE停止处理操作为进一步可选实现方案。例如，UE收到的一个指示信息为激活指示信息，UE执行处理操作，而UE收到的一个指示信息为去激活指示信息时，UE的操作可以不限定；类似的，UE收到的一个指示信息为去激活指示信息，UE停止处理操作，而UE收到的一个指示信息为激活指示信息，UE的操作也可不限定。
在激活场景下，激活指示信息用于指示UE执行处理操作，UE无法确定何时执行处理操作，因此，无线接入设备可向UE发送执行条件，以便UE根据执行条件确定在何时执行处理操作。
具体地，无线接入设备向UE发送执行条件，执行条件用于供UE确定是否执行处理操作。对应的，UE接收无线接入设备发送的执行条件。此时，步骤506中的“UE执行处理操作”可以替换为：当UE满足执行条件时，UE执行处理操作。
其中，执行条件可以用于指示信号质量门限值或数据量门限值。比如，当执行条件指示信号质量门限值时，UE在信号质量低于该信号质量门限值时，执行处理操作；在信号质量高于该信号质量门限值时，不执行处理操作；或者，UE在信号质量高于该信号质量门限值时，执行处理操作；在信号质量低于该信号质量门限值时，不执行处理操作。当执行条件指示数据量门限值时，UE在待发送的上行数据的数据量低于该数据量门限值时，执行处理操作；在数据量高于该数据量门限值时，不执行处理操作；或者，UE在数据量高于该数据量门限值时，执行处理操作；在数据量低于该数据量门限值时，不执行处理操作。
在激活场景下，激活指示信息用于指示UE执行处理操作，UE无法确定何时执行复用操作，何时执行变换操作，因此，无线接入设备可向UE发送第一门限值，以便UE根据第一门限值确定是执行复用操作还是变换操作。
具体地，无线接入设备向UE发送第一门限值。对应的，UE接收无线接入设备发送的第一门限值。此时，步骤506中的“UE执行处理操作”可以替换为：UE确定待发送的上行数据的数据量；当数据量小于第一门限值时，UE执行复用操作；当数据量大于第一门限 值时，UE执行变换操作；或者，当数据量大于第一门限值时，UE执行复用操作；当数据量小于第一门限值时，UE执行变换操作。
可选的，无线接入设备可以将第一门限值携带在激活指示信息中发送给UE；或者，无线接入设备可以将第一门限值和激活指示信息一起携带在其他消息中发送给UE；或者，无线接入设备可以将第一门限值单独发送给UE，本实施例不作限定。
在激活场景下，激活指示信息用于指示UE执行处理操作，UE无法确定是选择SRB对应的链路执行处理操作，还是选择DRB对应的链路执行处理操作，因此，无线接入设备还需要向UE发送第二指示信息，以便UE根据第二指示信息确定是选择SRB对应的链路执行处理操作，还是选择DRB对应的链路执行处理操作。
具体地，无线接入设备向UE发送第二指示信息，第二指示信息用于指示SRB和/或DRB，且第二指示信息和第一指示信息绑定。对应的，UE接收无线接入设备发送的第二指示信息。此时，步骤506中的“UE执行处理操作”可以替换为：当第二指示信息指示了SRB时，UE选择SRB对应的链路执行处理操作；当第二指示信息指示了DRB时，UE选择DRB对应的链路执行处理操作。
可选的，当第一指示信息是激活指示信息时，第二指示信息与第一指示信息绑定是指第二指示信息携带在激活指示信息中，此时，无线接入设备可以将第二指示信息携带在激活指示信息中发送给UE；或者，第二指示信息与第一指示信息绑定是指第二指示信息与激活指示信息携带在同一消息中，此时，无线接入设备可以将第二指示信息和激活指示信息一起携带在其他消息中发送给UE；或者，第二指示信息与第一指示信息绑定是指第二指示信息与第一指示信息之间存在对应关系，此时，无线接入设备可以将第二指示信息单独发送给UE，本实施例不作限定。
由于无线接入设备与UE之间可能配置有多个DRB，且需要对部分DRB对应的链路执行处理操作，其他DRB对应的链路不需要执行处理操作，因此，无线接入设备还需要向UE发送DRB标识，且DRB标识和第一指示信息绑定，以便UE根据DRB标识确定选择哪些DRB对应的链路执行处理操作。其中，DRB标识用于指示DRB。
具体地，本实现方式还包括以下步骤。无线接入设备向UE发送DRB标识。对应的，UE接收无线接入设备发送的DRB标识。此时，“UE选择DRB对应的链路执行处理操作”可以替换为：UE选择DRB标识指示的DRB所对应的链路执行处理操作。
其中，当第一指示信息是激活指示信息时，DRB标识与第一指示信息绑定是指DRB标识携带在激活指示信息中，此时，无线接入设备可以将DRB标识携带在激活指示信息中发送给UE；或者，DRB标识与第一指示信息绑定是指DRB标识与激活指示信息携带在同一消息中，此时，无线接入设备可以将DRB标识和激活指示信息一起携带在其他消息中发送给UE；或者，DRB标识与第一指示信息绑定是指DRB标识与第一指示信息之间存在对应关系，此时，无线接入设备可以将DRB标识单独发送给UE，本实施例不作限定。
同理，无线接入设备与UE之间可能配置有多个SRB，且需要对部分SRB对应的链路执行处理操作，其他SRB对应的链路不需要执行处理操作，因此，无线接入设备还需要向UE发送SRB标识，且SRB标识和第一指示信息绑定，以便UE根据SRB标识确定选择哪 些SRB对应的链路执行处理操作。其中，SRB标识用于指示SRB。
具体地，本实现方式还包括以下步骤。无线接入设备向UE发送SRB标识。对应的，UE接收无线接入设备发送的SRB标识。此时，“UE选择SRB对应的链路执行处理操作”可以替换为：UE选择SRB标识指示的SRB所对应的链路执行处理操作。
其中，当第一指示信息是激活指示信息时，SRB标识与第一指示信息绑定是指SRB标识携带在激活指示信息中，此时，无线接入设备可以将SRB标识携带在激活指示信息中发送给UE；或者，SRB标识与第一指示信息绑定是指SRB标识与激活指示信息携带在同一消息中，此时，无线接入设备可以将SRB标识和激活指示信息一起携带在其他消息中发送给UE；或者，SRB标识与第一指示信息绑定是指SRB标识与第一指示信息之间存在对应关系，此时，无线接入设备可以将SRB标识单独发送给UE，本实施例不作限定。
当无线接入设备应用于CA场景时，数据传输系统包括无线接入设备，在UE执行复用操作之前，还需要确定哪些服务小区支持复用操作，本实施例提供了选择支持复用操作的服务小区的三种方式，下面分别对这三种选择方式进行介绍。
1)在第一种选择方式中，无线接入设备向UE发送小区标识信息。对应的，UE接收无线接入设备发送的小区标识信息，将小区标识信息所指示的服务小区确定为进行复用操作的服务小区。
具体地，无线接入设备可以将小区标识信息携带在激活指示信息中发送给UE；或者，无线接入设备可以将小区标识信息和激活指示信息一起携带在其他消息中发送给UE；或者，无线接入设备可以将小区标识信息单独发送给UE，本实施例不作限定。
2)在第二种选择方式中，无线接入设备向UE发送小区数量和第二门限值。对应的，UE接收无线接入设备发送的小区数量和第二门限值，选择链路信号质量大于第二门限值的服务小区作为进行复用操作的服务小区，所选的服务小区的总数量不超过小区数量。
由于链路信号质量大于第二门限值的服务小区进行复用操作，且进行复用操作的服务小区的总数量不能超过小区数量，UE根据这两个条件自行选择进行复用操作的服务小区。
当链路信号质量大于第二门限值的服务小区的总数量超过小区数量时，UE可以按照链路信号质量从好到差的顺序对各个服务小区进行排序，并选择排序在前的服务小区；或者，UE可以从中随机选择服务小区，所选的服务小区的总数量不超过小区数量。
无线接入设备可以将小区数量和第二门限值携带在激活指示信息中发送给UE；或者，无线接入设备可以将小区数量、第二门限值和激活指示信息一起携带在其他消息中发送给UE；或者，无线接入设备可以将小区数量和第二门限值单独发送给UE，本实施例不作限定。
3)在第三种选择方式中，无线接入设备向UE发送下行数据。对应的，UE将向UE发送下行数据的服务小区确定为进行复用操作的服务小区。
UE在哪些服务小区上接收到下行数据，就将这些服务小区确定为进行复用操作的服务小区。
当无线接入设备应用于DC场景或MC场景时，数据传输系统包括主无线接入设备和辅无线接入设备，由于不同的无线接入设备可能配置了相同的SRB和/或DRB，因此，在UE执行复用操作之前，还需要确定哪些无线接入设备支持复用操作，本实施例提供了选择支 持复用操作的无线接入设备的三种方式，下面分别对这三种选择方式进行介绍。
1)在第一种选择方式中，主无线接入设备向UE发送辅无线接入设备标识信息。对应的，UE接收主无线接入设备发送的辅无线接入设备标识信息，将辅无线接入设备标识信息所指示的辅无线接入设备确定为进行复用操作的无线接入设备。
具体地，主无线接入设备可以将辅无线接入设备标识信息携带在激活指示信息中发送给UE；或者，主无线接入设备可以将辅无线接入设备标识信息和激活指示信息一起携带在其他消息中发送给UE；或者，主无线接入设备可以将辅无线接入设备标识信息单独发送给UE，本实施例不作限定。
2)在第二种选择方式中，主无线接入设备向UE发送无线接入设备数量和第三门限值。对应的，UE接收主无线接入设备发送的无线接入设备数量和第三门限值，选择链路信号质量大于第二门限值的无线接入设备作为进行复用操作的无线接入设备，所选的无线接入设备的总数量不超过无线接入设备数量。
由于链路信号质量大于第三门限值的无线接入设备进行复用操作，且进行复用操作的无线接入设备的总数量不能超过无线接入设备数量，UE根据这两个条件自行选择进行复用操作的无线接入设备。
当链路信号质量大于第三门限值的无线接入设备的总数量超过无线接入设备数量时，UE可以按照链路信号质量从好到差的顺序对各个无线接入设备进行排序，并选择排序在前的无线接入设备；或者，UE可以从中随机选择无线接入设备，所选的无线接入设备的总数量不超过无线接入设备数量。
主无线接入设备可以将无线接入设备数量和第三门限值携带在激活指示信息中发送给UE；或者，主无线接入设备可以将无线接入设备数量、第三门限值和激活指示信息一起携带在其他消息中发送给UE；或者，主无线接入设备可以将无线接入设备数量和第三门限值单独发送给UE，本实施例不作限定。
3)在第三种选择方式中，主无线接入设备向UE发送下行数据。对应的，UE将向UE发送下行数据的无线接入设备确定为进行复用操作的无线接入设备。
UE在哪些无线接入设备上接收到下行数据，就将这些无线接入设备确定为进行复用操作的无线接入设备。
当无线接入设备应用于DC场景或MC场景时，数据传输系统包括主无线接入设备和辅无线接入设备，UE在执行复用操作之前，还需要向无线接入设备发送BSR，以便无线接入设备为UE分配用于执行复用操作的上行资源。本实施例提供了向无线接入设备发送BSR的四种方式，下面分别对这四种发送方式进行介绍。
1)在第一种发送方式中，UE分别向主无线接入设备和各个辅无线接入设备发送第一BSR，第一BSR包含主无线接入设备的PDCP层的数据量乘以执行复用操作的无线接入设备的数量之积、以及主无线接入设备和各个辅无线接入设备各自对应的RLC层的数据量之和。对应的，主无线接入设备接收UE发送的第一BSR；与接收第一BSR的各个辅无线接入设备进行UE的上行资源的协商。
执行复用操作时，UE发送的上行数据会被同时发送到主无线接入设备的RLC层和各个辅无线接入设备的RLC层，而每个辅无线接入设备的RLC层与主无线接入设备的PDCP 层关联，因此，主无线接入设备对应的BSR为主无线接入设备的PDCP层和RLC层的数据量之和，每个辅无线接入设备对应的BSR为主无线接入设备的PDCP层和辅无线接入设备的RLC层的数据量之和，此时，第一BSR包括主无线接入设备的PDCP层的数据量乘以执行复用操作的无线接入设备的数量之积、以及主无线接入设备和各个辅无线接入设备各自对应的RLC层的数据量之和，无线接入设备包括主无线接入设备和辅无线接入设备。
假设辅无线接入设备的数量为1，主无线接入设备的PDCP层的数据量是200字节，主无线接入设备的RLC层的数据量是800字节，辅无线接入设备的RLC层的数据量是600字节，则第一BSR＝2*200+800+600＝1800字节。假设辅无线接入设备的数量为2，主无线接入设备的PDCP层的数据量是200字节，主无线接入设备的RLC层的数据量是800字节，辅无线接入设备1的RLC层的数据量是600字节，辅无线接入设备2的RLC层的数据量是700字节，则第一BSR＝2*200+800+600+700＝2500字节。
UE在生成第一BSR后，分别向主无线接入设备和每个辅无线接入设备发送第一BSR，主无线接入设备与接收到第一BSR的每个辅无线接入设备进行UE的上行资源的协商，以避免每个无线接入设备都为UE分配与第一BSR对应的上行资源，导致过调度的问题，从而节省调度资源。请参考图6，图6中以UE向主无线接入设备和一个辅无线接入设备发送第一BSR为例进行说明，且主无线接入设备向UE分配1000字节的上行资源，辅无线接入设备向UE分配800字节的上行资源。
2)在第二种发送方式中，UE接收主无线接入设备发送的UL grant，在UL grant指示的上行资源上向主无线接入设备发送第二BSR。对应的，主无线接入设备接收UE发送的第二BSR；当第二BSR包含主无线接入设备的PDCP层的数据量乘以执行复用操作的无线接入设备的数量之积、以及主无线接入设备和各个辅无线接入设备各自的RLC层的数据量之和时，根据第二BSR确定为UE分配的上行资源，并将第二BSR的数值减去主无线接入设备为UE分配的上行资源的数值得到剩余上行资源请求量，将剩余上行资源请求量发送给辅无线接入设备，剩余上行资源请求量用于指示辅无线接入设备确定为UE分配的上行资源；当第二BSR包含主无线接入设备的PDCP层的数据量与每个辅无线接入设备的RLC层的数据量之和、以及主无线接入设备的PDCP层和RLC层的数据量之和中的最小值时，根据第二BSR确定为UE分配的上行资源，并将第二BSR转发给各个辅无线接入设备，第二BSR用于指示各个辅无线接入设备确定为UE分配的上行资源。
在UE发送第二BSR之前，还需要确定发送第二BSR的上行资源。在一种场景中，UE向无线接入设备请求用于发送第二BSR的上行资源，无线接入设备在接收到该请求后，向UE发送UL grant，UE通过UL grant指示上行资源发送第二BSR；或者，在另一种场景中，当UE向无线接入设备请求用于发送上行数据的上行资源还有剩余时，UE在该上行资源上向无线接入设备发送第二BSR。此时的无线接入设备可以是主无线接入设备，也可以是各个辅无线接入设备中的一个或多个辅无线接入设备，还可以是主无线接入设备和所有的辅无线接入设备，本实施例不作限定。
本发送方式中以UE向主无线接入设备发送第二BSR为例进行说明，此时，第二BSR包含主无线接入设备的PDCP层的数据量乘以执行复用操作的无线接入设备的数量之积、以及主无线接入设备和各个辅无线接入设备各自的RLC层的数据量之和；或者，第二BSR包含主无线接入设备的PDCP层的数据量与每个辅无线接入设备的RLC层的数据量之和、 以及主无线接入设备的PDCP层和RLC层的数据量之和中的最小值，下面分别对两种第二BSR的实现方式进行说明。
当第二BSR包含主无线接入设备的PDCP层的数据量乘以执行复用操作的无线接入设备的数量之积、以及主无线接入设备和各个辅无线接入设备各自的RLC层的数据量之和时，第二BSR的计算方式详见第一种发送方式中的说明，此处不再赘述。
比如，UE最早接收到主无线接入设备发送的UL grant，辅无线接入设备数量为1，且第二BSR的数值为第一种发送方式中得到的1800字节，则UE向主无线接入设备发送第二BSR，若主无线接入设备确定自身可以为UE分配1000字节的上行资源，则计算剩余上行资源请求量＝1800-1000＝800字节，将剩余上行资源请求量发送给辅无线接入设备，辅无线接入设备再为UE分配800字节的上行资源，请参考图7。
需要说明的是，当辅无线接入设备的数量为至少两个时，主无线接入设备可以将第一剩余上行资源请求量发送给允许进行复用操作的辅无线接入设备中的一个辅无线接入设备，该辅无线接入设备根据第一剩余上行资源请求量确定自身可以为UE分配的上行资源，将第一剩余上行资源请求量减去该上行资源的数值，将得到的第二剩余上行资源请求量发送给剩余的辅无线接入设备中的一个辅无线接入设备，依次类推，直至为UE分配的上行资源的数值达到第二BSR的数值时停止。或者，可选的，主无线接入设备还可以将剩余上行资源请求量发送给进行复用操作的全部或部分辅无线接入设备，以便全部或部分辅无线接入设备进行UE的上行资源的协商。
第二BSR还可以包含主无线接入设备的PDCP层的数据量与每个辅无线接入设备的RLC层的数据量之和、以及主无线接入设备的PDCP层和RLC层的数据量之和中的最小值。
假设辅无线接入设备的数量为1，主无线接入设备的PDCP层的数据量是200字节，主无线接入设备的RLC层的数据量是800字节，辅无线接入设备的RLC层的数据量是600字节，则第二BSR＝min{200+800，200+600}＝800字节，主无线接入设备为UE分配800字节的上行资源后，将第二BSR转发给辅无线接入设备，以使辅无线接入设备为UE分配800字节的上行资源，请参考图8。
3)在第三种发送方式中，辅无线接入设备向UE发送UL grant。对应的，UE接收各个辅无线接入设备中的一个辅无线接入设备发送的UL grant，在UL grant指示的上行资源上向辅无线接入设备发送第二BSR。对应的，主无线接入设备接收各个辅无线接入设备中的一个辅无线接入设备发送的剩余上行资源请求量，剩余上行资源请求量是辅无线接入设备将UE发送的第二BSR中的数值减去辅无线接入设备为UE分配的上行资源的数值得到的；根据剩余上行资源请求量确定为UE分配的上行资源；或者，接收各个辅无线接入设备中的一个辅无线接入设备发送的第二BSR，第二BSR是UE向辅无线接入设备发送的第二BSR；根据第二BSR确定为UE分配的上行资源。
本发送方式中以UE向辅无线接入设备发送第二BSR为例进行说明，则本发送方式中的辅无线接入设备类似于第二种发送方式中的主无线接入设备，本发送方式中的主无线接入设备类似于第二种发送方式中的辅无线接入设备，具体实现详见第二种发送方式中的描述，此处不再赘述。
需要说明的是，在上述三种发送方式中，当UE向主无线接入设备和多个辅无线接入设备发送BSR时，网络侧需要明确进行复用操作的无线接入设备，否则无法进行网络侧协商。
4)在第四种发送方式中，UE向主无线接入设备发送第三BSR，并向各个辅无线接入设备发送第四BSR，第三BSR包含主无线接入设备的PDCP层和RLC层的数据量之和，第四BSR包含主无线接入设备的PDCP层的数据量与辅无线接入设备的RLC层的数据量之和。对应的，主无线接入设备接收UE发送的第三BSR；根据第三BSR确定为UE分配的上行资源。
假设辅无线接入设备的数量为1，主无线接入设备的PDCP层的数据量是200字节，主无线接入设备的RLC层的数据量是800字节，辅无线接入设备的RLC层的数据量是600字节，则第三BSR＝200+800＝1000字节，第四BSR＝200+600＝800字节，UE向主无线接入设备发送第三BSR，向辅无线接入设备发送第四BSR，请参考图9。
当无线接入设备应用于DC场景或MC场景时，数据传输系统包括主无线接入设备和辅无线接入设备，在执行复用操作时，UE接收各个无线接入设备在各自的链路上发送的PDCP PDU；向主无线接入设备发送PDCP状态报告。对应的，主无线接入设备接收UE发送的PDCP状态报告；当主无线接入设备向UE发送了PDCP PDU时，通知主无线接入设备的RLC层和执行复用操作的各个辅无线接入设备的RLC层UE正确接收PDCP PDU对应的SN，并停止正确接收的PDCP PDU在RLC层对应的RLC PDU的ARQ；当主无线接入设备未向UE发送PDCP PDU时，通知执行复用操作的各个辅无线接入设备的RLC层UE正确接收的PDCP PDU对应的序列号SN，并停止正确接收的PDCP PDU在RLC层对应的RLC PDU的ARQ。
其中，UE可以周期性地向主无线接入设备发送PDCP状态报告，且主无线接入设备可以通过Xn接口通知各个辅无线接入设备的RLC层。
以主无线接入设备和一个辅无线接入设备向UE发送了PDCP PDU为例进行说明，比如，主无线接入设备的PDCP层接收到5个下行链路(Down Link；DL)数据包，生成PDCP PDU1/2/3/4/5，主无线接入设备的PDCP层通过主无线接入设备的RLC层/MAC层/PHY层将PDCP PDU1/2/3/4/5发送给UE，主无线接入设备的PDCP层通过辅无线接入设备的RLC层/MAC层/PHY层将PDCP PDU1/2/3/4/5发送给UE。若UE从主无线接入设备正确接收到PDCP PDU1/4/5，从辅无线接入设备正确接收到PDCP PDU2/5，对PDCP PDU进行重排序和重复包检测，确定正确接收到PDCP PDU1/2/4/5。此时，UE可以向主无线接入设备发送PDCP状态报告，以通知主无线接入设备正确接收到SN为1/2/4/5的PDCP PDU，主无线接入设备的PDCP层将SN通知主无线接入设备的RLC层，主无线接入设备的RLC层停止SN为1/2/4/5的PDCP PDU在RLC层对应的RLC PDU的ARQ；主无线接入设备的PDCP层再通过Xn接口通知辅无线接入设备的RLC层，辅无线接入设备的RLC层停止SN为1/2/4/5的PDCP PDU在RLC层对应的RLC PDU的ARQ，从而减少了不必要的资源浪费。
当无线接入设备应用于DC场景或MC场景时，数据传输系统包括主无线接入设备和辅无线接入设备，在执行复用操作时，UE在各个无线接入设备的链路上向无线接入设备发送PDCP PDU。对应的，主无线接入设备接收PDCP PDU，并向UE发送PDCP状态报告。对应的，UE接收主无线接入设备发送的PDCP状态报告；当无线接入设备包括主无线接入设备和辅无线接入设备时，PDCP状态报告用于指示UE通知与主无线接入设备对应的RLC 层和与执行复用操作的各个辅无线接入设备对应的RLC层正确接收的PDCP PDU对应的SN，并停止正确接收的PDCP PDU在RLC层对应的RLC PDU的ARQ；当无线接入设备包括辅无线接入设备时，PDCP状态报告用于指示UE通知与执行复用操作的各个辅无线接入设备对应的RLC层正确接收的PDCP PDU对应的SN，并停止正确接收的PDCP PDU在RLC层对应的RLC PDU的ARQ。
其中，主无线接入设备可以周期性地向UE发送PDCP状态报告。
以UE向主无线接入设备和一个辅无线接入设备发送了PDCP PDU为例进行说明，比如，UE的PDCP层接收到5个UL数据包，生成PDCP PDU1/2/3/4/5，UE的PDCP层通过与主无线接入设备对应的RLC层/MAC层/PHY层将PDCP PDU1/2/3/4/5发送给主无线接入设备，UE的PDCP层通过辅无线接入设备对应的RLC层/MAC层/PHY层将PDCP PDU1/2/3/4/5发送给各个辅无线接入设备。若主无线接入设备正确接收到PDCP PDU1/4/5，辅无线接入设备正确接收到PDCP PDU2/5，且辅无线接入设备将正确接收的PDCP PDU2/5通过Xn接口进一步转发给主无线接入设备，主无线接入设备的PDCP层对接收到的PDCP PDU进行重排序和重复包检测，确定正确接收到PDCP PDU1/2/4/5。此时，主无线接入设备可以向UE发送PDCP状态报告，以通知正确接收到SN为1/2/4/5的PDCP PDU，UE的PDCP层将SN通知与主无线接入设备对应的RLC层，指示该RLC层停止SN为1/2/4/5的PDCP PDU在RLC层对应的RLC PDU的ARQ；UE的PDCP层再通知辅无线接入设备对应的RLC层，指示该RLC层停止SN为1/2/4/5的PDCP PDU在RLC层对应的RLC PDU的ARQ，从而减少了不必要的资源浪费。
综上所述，本发明实施例提供的数据传输方法，当UE执行复用操作时，UE通过多条链路传输同一数据，这样，可以通过多条链路中链路信号质量较好的链路来提高该数据传输的可靠性；当UE执行变换操作时，UE从多条链路中选择一条链路，由于选择的链路的质量通常较好，这样，也可以提高该数据传输的可靠性；从而解决了现有数据只能通过单链路传输而无法保证URLLC数据传输的可靠性的问题，以满足URLLC业务的需求。
在不需要执行处理操作时，主无线接入设备向UE发送去激活指示信息，以指示UE停止处理操作，从而节省通过处理操作传输数据所造成的额外资源开销。
UE向无线接入设备发送能力信息来指示自身是否支持处理操作，无线接入设备在确定UE支持处理操作后，向UE发送第一指示信息，避免了在UE不支持处理操作时，向UE发送第一指示信息所造成的资源浪费。
请参考图10，其示出了本发明一个实施例提供的数据传输装置的框图。该数据传输装置可以通过软件、硬件或者两者的结合实现成为UE的全部或者一部分。该数据传输装置可以包括：接收单元1010、执行单元1020。
接收单元1010，用于实现上述步骤505的功能。
执行单元1020，用于实现上述步骤506的功能。
可选的，该数据传输装置还可以包括第一发送单元，用于实现上述步骤501的功能。
可选的，该数据传输装置还可以包括第一确定单元，用于将向UE发送下行数据的服务小区确定为进行复用操作的服务小区。
可选的，该数据传输装置还可以包括第二确定单元，用于将向UE发送下行数据的无线 接入设备确定为进行复用操作的无线接入设备。
相关细节可结合参考图5所述的方法实施例。
需要说明的是，上述的接收单元1010可以通过UE中的收发器来实现；上述的执行单元1020、第一确定单元和第二确定单元可以通过UE中的处理器来实现。
请参考图11，其示出了本发明一个实施例提供的数据传输装置的框图。该数据传输装置可以通过软件、硬件或者两者的结合实现成为主无线接入设备的全部或者一部分。该数据传输装置可以包括：生成单元1110、发送单元1120。
生成单元1110，用于实现上述步骤503的功能。
发送单元1120，用于实现上述步骤504的功能。
可选的，该数据传输装置还可以包括第一接收单元，用于接收辅无线接入设备发送的SRB的配置信息。
可选的，该数据传输装置还可以包括第二接收单元，用于实现上述步骤502的功能。
相关细节可结合参考图5所述的方法实施例。
需要说明的是，上述的生成单元1110可以通过主无线接入设备中的处理器来实现；上述的发送单元1120、第一接收单元和第二接收单元可以通过主无线接入设备中的收发器来实现。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。
本领域普通技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，可以仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应所述以权利要求的保护范围为准。

Claims (45)

  1. 一种数据传输方法，其特征在于，所述方法包括：
    用户设备UE接收无线接入设备发送的第一指示信息，所述第一指示信息为激活指示信息或去激活指示信息，所述激活指示信息用于指示所述UE执行处理操作，所述去激活指示信息用于指示所述UE停止所述处理操作，所述处理操作包括复用操作和变换操作中的至少一种；
    当所述第一指示信息为所述激活指示信息时，所述UE执行所述处理操作；
    当所述第一指示信息为所述去激活指示信息时，所述UE停止所述处理操作；
    其中，所述复用操作是指将同一数据通过多条链路传输；所述变换操作是指从多条链路中选择一条链路进行数据传输。
  2. 根据权利要求1所述的方法，其特征在于，
    所述方法，还包括：所述UE接收所述无线接入设备发送的执行条件，所述执行条件用于供所述UE确定是否执行所述处理操作；
    所述UE执行所述处理操作，包括：当所述UE满足所述执行条件时，所述UE执行所述处理操作。
  3. 根据权利要求1所述的方法，其特征在于，
    所述方法，还包括：所述UE接收所述无线接入设备发送的第一门限值；
    所述UE执行所述处理操作，包括：所述UE确定待发送的上行数据的数据量；当所述数据量小于所述第一门限值时，所述UE执行所述复用操作；当所述数据量大于所述第一门限值时，所述UE执行所述变换操作；或者，当所述数据量大于所述第一门限值时，所述UE执行所述复用操作；当所述数据量小于所述第一门限值时，所述UE执行所述变换操作。
  4. 根据权利要求1所述的方法，其特征在于，
    所述方法，还包括：所述UE接收所述无线接入设备发送的第二指示信息，所述第二指示信息用于指示基于链路建立的信令无线承载SRB和/或基于链路建立的数据无线承载DRB，且所述第二指示信息和所述第一指示信息绑定；
    所述UE执行处理操作，包括：当所述第二指示信息指示了所述SRB时，所述UE选择所述SRB对应的链路执行所述处理操作；当所述第二指示信息指示了所述DRB时，所述UE选择所述DRB对应的链路执行所述处理操作。
  5. 根据权利要求4所述的方法，其特征在于，
    所述方法，还包括：所述UE接收所述无线接入设备发送的DRB标识；
    所述UE选择所述DRB对应的链路执行所述处理操作，包括：所述UE选择所述DRB标识指示的DRB所对应的链路执行所述处理操作。
  6. 根据权利要求1所述的方法，其特征在于，在所述UE接收无线接入设备发送的第一 指示信息之前，还包括：
    所述UE向所述无线接入设备发送UE的能力信息，所述能力信息用于指示所述UE是否支持所述处理操作。
  7. 根据权利要求1至6任一所述的方法，其特征在于，所述方法，还包括：
    当所述无线接入设备应用于载波聚合CA场景时，所述UE接收所述无线接入设备发送的小区标识信息，将所述小区标识信息所指示的服务小区确定为进行所述复用操作的服务小区；或者，所述UE接收所述无线接入设备发送的小区数量和第二门限值，选择链路信号质量大于所述第二门限值的服务小区作为进行所述复用操作的服务小区，所选的所有服务小区的总数量不超过所述小区数量；或者，所述UE将向所述UE发送下行数据的服务小区确定为进行所述复用操作的服务小区；
    当所述无线接入设备应用于双连接DC场景或多连接MC场景时，所述无线接入设备为主无线接入设备，所述UE接收所述主无线接入设备发送的辅无线接入设备标识信息，将所述辅无线接入设备标识信息所指示的辅无线接入设备确定为进行所述复用操作的无线接入设备；或者，所述UE接收所述主无线接入设备发送的无线接入设备数量和第三门限值，选择链路信号质量大于所述第三门限值的无线接入设备作为进行所述复用操作的无线接入设备，所选的所有无线接入设备的总数量不超过所述无线接入设备数量；或者，所述UE将向所述UE发送下行数据的无线接入设备确定为进行所述复用操作的无线接入设备。
  8. 一种数据传输方法，其特征在于，所述方法包括：
    无线接入设备生成第一指示信息，所述第一指示信息为激活指示信息或去激活指示信息，所述激活指示信息用于指示用户设备UE执行处理操作，所述去激活指示信息用于指示所述UE停止所述处理操作，所述处理操作包括复用操作和变换操作中的至少一种；
    所述无线接入设备向所述UE发送所述第一指示信息；
    其中，所述复用操作是指将同一数据通过多条链路传输；所述变换操作是指从多条链路中选择一条链路进行数据传输。
  9. 根据权利要求8所述的方法，其特征在于，所述方法，还包括：
    所述无线接入设备向所述UE发送执行条件，所述执行条件用于供所述UE确定是否执行所述处理操作。
  10. 根据权利要求8所述的方法，其特征在于，所述方法，还包括：
    所述无线接入设备向所述UE发送第一门限值，所述第一门限值用于供所述UE确定是执行所述复用操作还是执行所述变换操作。
  11. 根据权利要求8所述的方法，其特征在于，所述方法，还包括：
    所述无线接入设备向所述UE发送第二指示信息，所述第二指示信息和所述第一指示信息绑定；所述第二指示信息用于指示基于链路建立的信令无线承载SRB和/或基于链路建立的数据无线承载DRB。
  12. 根据权利要求11所述的方法，其特征在于，当所述无线接入设备应用于双连接DC场景或多连接MC场景时，所述无线接入设备是主无线接入设备，所述方法，还包括：
    所述主无线接入设备向辅无线接入设备发送第三指示信息，所述第三指示信息用于指示所述辅无线接入设备对SRB进行无线资源的配置；
    所述主无线接入设备接收所述辅无线接入设备发送的所述SRB的配置信息；
    所述主无线接入设备将所述配置信息发送给所述UE。
  13. 根据权利要求11所述的方法，其特征在于，所述方法，还包括：
    所述无线接入设备向所述UE发送DRB标识，选择所述DRB标识指示的DRB所对应的链路执行所述处理操作。
  14. 根据权利要求8所述的方法，其特征在于，所述方法，还包括：
    所述无线接入设备接收所述UE发送的能力信息，所述能力信息用于指示所述UE是否支持所述处理操作。
  15. 根据权利要求8至14任一所述的方法，其特征在于，所述方法，还包括：
    当所述无线接入设备应用于载波聚合CA场景时，所述无线接入设备向所述UE发送小区标识信息，所述小区标识信息所指示的服务小区为进行所述复用操作的服务小区；或者，所述无线接入设备向所述UE发送小区数量和第二门限值，链路信号质量大于所述第二门限值的服务小区为进行所述复用操作的服务小区，且所选的所有服务小区的总数量不超过所述小区数量；或者，所述无线接入设备向所述UE发送下行数据，向所述UE发送下行数据的服务小区为进行所述复用操作的服务小区；
    当所述无线接入设备应用于DC场景或MC场景时，所述无线接入设备为主无线接入设备，所述主无线接入设备向所述UE发送辅无线接入设备标识信息，所述辅无线接入设备标识信息所指示的辅无线接入设备为进行所述复用操作的无线接入设备；或者，所述主无线接入设备向所述UE发送无线接入设备数量和第三门限值，链路信号质量大于所述第三门限值的无线接入设备为进行所述复用操作的无线接入设备，且所选的所有无线接入设备的总数量不超过所述无线接入设备数量；或者，所述主无线接入设备向所述UE发送下行数据，向所述UE发送下行数据的无线接入设备为进行所述复用操作的无线接入设备。
  16. 一种数据传输装置，其特征在于，用于用户设备UE中，所述装置包括：处理器、以及与所述处理器相连的收发器，所述收发器被配置为由所述处理器控制；
    所述收发器，用于接收无线接入设备发送的第一指示信息，所述第一指示信息为激活指示信息或去激活指示信息，所述激活指示信息用于指示所述UE执行处理操作，所述去激活指示信息用于指示所述UE停止所述处理操作，所述处理操作包括复用操作和变换操作中的至少一种；
    所述处理器，用于当所述收发器接收的所述第一指示信息为所述激活指示信息时，执行所述处理操作；
    所述处理器，还用于当所述收发器接收的所述第一指示信息为所述去激活指示信息时，停止所述处理操作；
    其中，所述复用操作是指将同一数据通过多条链路传输；所述变换操作是指从多条链路中选择一条链路进行数据传输。
  17. 根据权利要求16所述的装置，其特征在于，
    所述收发器，还用于接收所述无线接入设备发送的执行条件，所述执行条件用于供所述UE确定是否执行所述处理操作；
    所述处理器，还用于当所述UE满足所述执行条件时，执行所述处理操作。
  18. 根据权利要求16所述的装置，其特征在于，
    所述收发器，还用于接收所述无线接入设备发送的第一门限值；
    所述处理器，还用于确定待发送的上行数据的数据量；当所述数据量小于所述收发器接收的所述第一门限值时，执行所述复用操作；当所述数据量大于所述收发器接收的所述第一门限值时，执行所述变换操作；或者，当所述数据量大于所述收发器接收的所述第一门限值时，执行所述复用操作；当所述数据量小于所述收发器接收的所述第一门限值时，执行所述变换操作。
  19. 根据权利要求16所述的装置，其特征在于，
    所述收发器，还用于接收所述无线接入设备发送的第二指示信息，所述第二指示信息用于指示基于链路建立的信令无线承载SRB和/或基于链路建立的数据无线承载DRB，且所述第二指示信息和所述第一指示信息绑定；
    所述处理器，还用于当所述收发器接收的所述第二指示信息指示了所述SRB时，选择所述SRB对应的链路执行所述处理操作；当所述收发器接收的所述第二指示信息指示了所述DRB时，选择所述DRB对应的链路执行所述处理操作。
  20. 根据权利要求19所述的装置，其特征在于，
    所述收发器，还用于接收所述无线接入设备发送的DRB标识；
    所述处理器，还用于选择所述DRB标识指示的DRB所对应的链路执行所述处理操作。
  21. 根据权利要求16所述的装置，其特征在于，
    所述收发器，还用于在所述收发器接收无线接入设备发送的第一指示信息之前，向所述无线接入设备发送UE的能力信息，所述能力信息用于指示所述UE是否支持所述处理操作。
  22. 根据权利要求16至21任一所述的装置，其特征在于，
    当所述无线接入设备应用于载波聚合CA场景时，所述收发器，还用于接收所述无线接入设备发送的小区标识信息，将所述小区标识信息所指示的服务小区确定为进行所述复用操作的服务小区；或者，接收所述无线接入设备发送的小区数量和第二门限值，选择链路信号质量大于所述第二门限值的服务小区作为进行所述复用操作的服务小区，所选的所有服务小 区的总数量不超过所述小区数量；或者，所述处理器，还用于将向所述UE发送下行数据的服务小区确定为进行所述复用操作的服务小区；
    当所述无线接入设备应用于双连接DC场景或多连接MC场景时，所述无线接入设备为主无线接入设备，所述收发器，还用于接收所述主无线接入设备发送的辅无线接入设备标识信息，将所述辅无线接入设备标识信息所指示的辅无线接入设备确定为进行所述复用操作的无线接入设备；或者，接收所述主无线接入设备发送的无线接入设备数量和第三门限值，选择链路信号质量大于所述第三门限值的无线接入设备作为进行所述复用操作的无线接入设备，所选的所有无线接入设备的总数量不超过所述无线接入设备数量；或者，所述处理器，还用于将向所述UE发送下行数据的无线接入设备确定为进行所述复用操作的无线接入设备。
  23. 一种数据传输装置，其特征在于，用于无线接入设备中，所述装置包括：处理器、以及与所述处理器相连的收发器，所述收发器被配置为由所述处理器控制；
    所述处理器，用于生成第一指示信息，所述第一指示信息为激活指示信息或去激活指示信息，所述激活指示信息用于指示用户设备UE执行处理操作，所述去激活指示信息用于指示所述UE停止所述处理操作，所述处理操作包括复用操作和变换操作中的至少一种；
    所述收发器，用于向所述UE发送所述处理器生成的所述第一指示信息；
    其中，所述复用操作是指将同一数据通过多条链路传输；所述变换操作是指从多条链路中选择一条链路进行数据传输。
  24. 根据权利要求23所述的方法，其特征在于，所述收发器，还用于向所述UE发送执行条件，所述执行条件用于供所述UE确定是否执行所述处理操作。
  25. 根据权利要求23所述的装置，其特征在于，
    所述收发器，还用于向所述UE发送第一门限值，所述第一门限值用于供所述UE确定是执行所述复用操作还是执行所述变换操作。
  26. 根据权利要求23所述的装置，其特征在于，所述收发器，还用于向所述UE发送第二指示信息，所述第二指示信息和所述第一指示信息绑定；所述第二指示信息用于指示基于链路建立的信令无线承载SRB和/或基于链路建立的数据无线承载DRB。
  27. 根据权利要求26所述的装置，其特征在于，当所述无线接入设备应用于双连接DC场景或多连接MC场景时，所述无线接入设备是主无线接入设备，
    所述收发器，还用于向辅无线接入设备发送第三指示信息，所述第三指示信息用于指示所述辅无线接入设备对SRB进行无线资源的配置；
    所述收发器，还用于接收所述辅无线接入设备发送的所述SRB的配置信息；
    所述收发器，还用于将接收的所述配置信息发送给所述UE。
  28. 根据权利要求26所述的装置，其特征在于，所述收发器，还用于向所述UE发送DRB标识，选择所述DRB标识指示的DRB所对应的链路执行所述处理操作。
  29. 根据权利要求23所述的装置，其特征在于，
    所述收发器，还用于接收所述UE发送的能力信息，所述能力信息用于指示所述UE是否支持所述处理操作。
  30. 根据权利要求23至29任一所述的装置，其特征在于，
    当所述无线接入设备应用于载波聚合CA场景时，所述收发器，还用于向所述UE发送小区标识信息，所述小区标识信息所指示的服务小区为进行所述复用操作的服务小区；或者，向所述UE发送小区数量和第二门限值，链路信号质量大于所述第二门限值的服务小区为进行所述复用操作的服务小区，且所选的所有服务小区的总数量不超过所述小区数量；或者，向所述UE发送下行数据，向所述UE发送下行数据的服务小区为进行所述复用操作的服务小区；
    当所述无线接入设备应用于DC场景或MC场景时，所述无线接入设备为主无线接入设备，所述收发器，还用于向所述UE发送辅无线接入设备标识信息，所述辅无线接入设备标识信息所指示的辅无线接入设备为进行所述复用操作的无线接入设备；或者，向所述UE发送无线接入设备数量和第三门限值，链路信号质量大于所述第三门限值的无线接入设备为进行所述复用操作的无线接入设备，且所选的所有无线接入设备的总数量不超过所述无线接入设备数量；或者，向所述UE发送下行数据，向所述UE发送下行数据的无线接入设备为进行所述复用操作的无线接入设备。
  31. 一种数据传输装置，其特征在于，用于用户设备UE中，所述装置包括：
    接收单元，用于接收无线接入设备发送的第一指示信息，所述第一指示信息为激活指示信息或去激活指示信息，所述激活指示信息用于指示所述UE执行处理操作，所述去激活指示信息用于指示所述UE停止所述处理操作，所述处理操作包括复用操作和变换操作中的至少一种；
    执行单元，用于当所述接收单元接收的所述第一指示信息为所述激活指示信息时，执行所述处理操作；
    所述执行单元，还用于当所述接收单元接收的所述第一指示信息为所述去激活指示信息时，停止所述处理操作；
    其中，所述复用操作是指将同一数据通过多条链路传输；所述变换操作是指从多条链路中选择一条链路进行数据传输。
  32. 根据权利要求31所述的装置，其特征在于，
    所述接收单元，还用于接收所述无线接入设备发送的执行条件，所述执行条件用于供所述UE确定是否执行所述处理操作；
    所述执行单元，还用于当所述UE满足所述执行条件时，执行所述处理操作。
  33. 根据权利要求31所述的装置，其特征在于，
    所述接收单元，还用于接收所述无线接入设备发送的第一门限值；
    所述执行单元，还用于确定待发送的上行数据的数据量；当所述数据量小于所述接收单元接收的所述第一门限值时，执行所述复用操作；当所述数据量大于所述接收单元接收的所述第一门限值时，执行所述变换操作；或者，当所述数据量大于所述接收单元接收的所述第一门限值时，执行所述复用操作；当所述数据量小于所述接收单元接收的所述第一门限值时，执行所述变换操作。
  34. 根据权利要求31所述的装置，其特征在于，
    所述接收单元，还用于接收所述无线接入设备发送的第二指示信息，所述第二指示信息用于指示基于链路建立的信令无线承载SRB和/或基于链路建立的数据无线承载DRB，且所述第二指示信息和所述第一指示信息绑定；
    所述执行单元，还用于当所述接收单元接收的所述第二指示信息指示了所述SRB时，选择所述SRB对应的链路执行所述处理操作；当所述接收单元接收的所述第二指示信息指示了所述DRB时，选择所述DRB对应的链路执行所述处理操作。
  35. 根据权利要求34所述的装置，其特征在于，
    所述接收单元，还用于接收所述无线接入设备发送的DRB标识；
    所述执行单元，还用于选择所述DRB标识指示的DRB所对应的链路执行所述处理操作。
  36. 根据权利要求31所述的装置，其特征在于，所述装置，还包括：
    第一发送单元，用于在所述接收单元接收无线接入设备发送的第一指示信息之前，向所述无线接入设备发送UE的能力信息，所述能力信息用于指示所述UE是否支持所述处理操作。
  37. 根据权利要求31至36任一所述的装置，其特征在于，
    当所述无线接入设备应用于载波聚合CA场景时，所述接收单元，还用于接收所述无线接入设备发送的小区标识信息，将所述小区标识信息所指示的服务小区确定为进行所述复用操作的服务小区；或者，接收所述无线接入设备发送的小区数量和第二门限值，选择链路信号质量大于所述第二门限值的服务小区作为进行所述复用操作的服务小区，所选的所有服务小区的总数量不超过所述小区数量；或者，所述装置，还包括：第一确定单元，用于将向所述UE发送下行数据的服务小区确定为进行所述复用操作的服务小区；
    当所述无线接入设备应用于双连接DC场景或多连接MC场景时，所述无线接入设备为主无线接入设备，所述接收单元，还用于接收所述主无线接入设备发送的辅无线接入设备标识信息，将所述辅无线接入设备标识信息所指示的辅无线接入设备确定为进行所述复用操作的无线接入设备；或者，接收所述主无线接入设备发送的无线接入设备数量和第三门限值，选择链路信号质量大于所述第三门限值的无线接入设备作为进行所述复用操作的无线接入设备，所选的所有无线接入设备的总数量不超过所述无线接入设备数量；或者，所述装置，还包括：第二确定单元，用于将向所述UE发送下行数据的无线接入设备确定为进行所述复用操作的无线接入设备。
  38. 一种数据传输装置，其特征在于，用于无线接入设备中，所述装置包括：
    生成单元，用于生成第一指示信息，所述第一指示信息为激活指示信息或去激活指示信息，所述激活指示信息用于指示用户设备UE执行处理操作，所述去激活指示信息用于指示所述UE停止所述处理操作，所述处理操作包括复用操作和变换操作中的至少一种；
    发送单元，用于向所述UE发送所述生成单元生成的所述第一指示信息；
    其中，所述复用操作是指将同一数据通过多条链路传输；所述变换操作是指从多条链路中选择一条链路进行数据传输。
  39. 根据权利要求38所述的方法，其特征在于，所述发送单元，还用于向所述UE发送执行条件，所述执行条件用于供所述UE确定是否执行所述处理操作。
  40. 根据权利要求38所述的装置，其特征在于，
    所述发送单元，还用于向所述UE发送第一门限值，所述第一门限值用于供所述UE确定是执行所述复用操作还是执行所述变换操作。
  41. 根据权利要求38所述的装置，其特征在于，所述发送单元，还用于向所述UE发送第二指示信息，所述第二指示信息和所述第一指示信息绑定；所述第二指示信息用于指示基于链路建立的信令无线承载SRB和/或基于链路建立的数据无线承载DRB。
  42. 根据权利要求41所述的装置，其特征在于，当所述无线接入设备应用于双连接DC场景或多连接MC场景时，所述无线接入设备是主无线接入设备，
    所述发送单元，还用于向辅无线接入设备发送第三指示信息，所述第三指示信息用于指示所述辅无线接入设备对SRB进行无线资源的配置；
    所述装置，还包括：第一接收单元，用于接收所述辅无线接入设备发送的所述SRB的配置信息；
    所述发送单元，还用于将所述第一接收单元接收的所述配置信息发送给所述UE。
  43. 根据权利要求38所述的装置，其特征在于，所述发送单元，还用于向所述UE发送DRB标识，选择所述DRB标识指示的DRB所对应的链路执行所述处理操作。
  44. 根据权利要求38所述的装置，其特征在于，所述装置，还包括：
    第二接收单元，用于接收所述UE发送的能力信息，所述能力信息用于指示所述UE是否支持所述处理操作。
  45. 根据权利要求38至44任一所述的装置，其特征在于，
    当所述无线接入设备应用于载波聚合CA场景时，所述发送单元，还用于向所述UE发送小区标识信息，所述小区标识信息所指示的服务小区为进行所述复用操作的服务小区；或者，向所述UE发送小区数量和第二门限值，链路信号质量大于所述第二门限值的服务小区为进行所述复用操作的服务小区，且所选的所有服务小区的总数量不超过所述小区数量；或 者，向所述UE发送下行数据，向所述UE发送下行数据的服务小区为进行所述复用操作的服务小区；
    当所述无线接入设备应用于DC场景或MC场景时，所述无线接入设备为主无线接入设备，所述发送单元，还用于向所述UE发送辅无线接入设备标识信息，所述辅无线接入设备标识信息所指示的辅无线接入设备为进行所述复用操作的无线接入设备；或者，向所述UE发送无线接入设备数量和第三门限值，链路信号质量大于所述第三门限值的无线接入设备为进行所述复用操作的无线接入设备，且所选的所有无线接入设备的总数量不超过所述无线接入设备数量；或者，向所述UE发送下行数据，向所述UE发送下行数据的无线接入设备为进行所述复用操作的无线接入设备。
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