WO2021102968A1 - 无线通信的方法、终端设备和网络设备 - Google Patents

无线通信的方法、终端设备和网络设备 Download PDF

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Publication number
WO2021102968A1
WO2021102968A1 PCT/CN2019/122123 CN2019122123W WO2021102968A1 WO 2021102968 A1 WO2021102968 A1 WO 2021102968A1 CN 2019122123 W CN2019122123 W CN 2019122123W WO 2021102968 A1 WO2021102968 A1 WO 2021102968A1
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WIPO (PCT)
Prior art keywords
rlc entity
bearer
transmission
mac
rlc
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PCT/CN2019/122123
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English (en)
French (fr)
Inventor
付喆
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202210468109.2A priority Critical patent/CN114845345B/zh
Priority to EP19954666.4A priority patent/EP4030819B1/en
Priority to CN201980099609.XA priority patent/CN114287144A/zh
Priority to PCT/CN2019/122123 priority patent/WO2021102968A1/zh
Publication of WO2021102968A1 publication Critical patent/WO2021102968A1/zh
Priority to US17/726,026 priority patent/US20220248267A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H04W28/082—Load balancing or load distribution among bearers or channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • 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
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • H04W28/12—Flow control between communication endpoints using signalling between network elements
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0252—Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • H04W28/0263—Traffic management, e.g. flow control or congestion control per individual bearer or channel involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]

Definitions

  • the embodiments of the present application relate to the field of communications, and in particular to a wireless communication method, terminal device, and network device.
  • the terminal device in order to improve the reliability of data transmission, the terminal device can adopt the mode of replication transmission.
  • one bearer can be configured with two radio links
  • the radio link control (RLC) entity, the packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer corresponding to the bearer can copy the PDCP protocol data unit (Protocol Data Unit, PDU) into the same two copies, such as one It is a PDCP PDU, and the other is a duplicated (Duplicated) PDCP PDU.
  • the two PDCP PDUs pass through different RLC layers and Media Access Control (MAC) layers, and finally are transmitted to the network device through the air interface.
  • MAC Media Access Control
  • the terminal device may transmit split data through two RLC entities corresponding to the bearer, that is, transmit different data through different RLC entities.
  • the split transmission condition is that the amount of PDCP data to be transmitted and the amount of RLC data of the two RLC entities are greater than or equal to a preset threshold.
  • Release 16 (Rel-16, R16), it is considered to configure more RLC entities for the bearer, for example, 4. In this case, how to determine the split transmission conditions and how to determine the RLC entity for split transmission is an urgent need to solve The problem.
  • the embodiments of the present application provide a wireless communication method, terminal equipment, and network equipment, which can determine the conditions for split transmission and the RLC entity used for split transmission when a bearer is configured with at least two RLC entities.
  • a wireless communication method which includes: in the case that the replication transmission of the first bearer is deactivated and the split transmission condition is satisfied, the terminal device uses at least two radio link control configurations of the first bearer configuration The first RLC entity and the second RLC entity in the RLC entity perform split transmission.
  • a wireless communication method which includes: a network device sends first information to a terminal device, the first information is used to indicate the RLC entity used when the replication transmission of the bearer is deactivated and the split transmission condition is satisfied .
  • a terminal device which is used to execute the methods in various implementation manners of the first aspect described above.
  • the terminal device includes a unit for executing the method in the foregoing first aspect or various implementation manners thereof.
  • a network device configured to execute the foregoing second aspect or any possible implementation of the second aspect.
  • the network device includes a unit for executing the foregoing second aspect or the method in any possible implementation manner of the second aspect.
  • a terminal device in a fifth aspect, includes a processor and a memory.
  • the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned first aspect or each of its implementation modes.
  • a network device in a sixth aspect, includes a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect or its implementation manners.
  • a chip is provided for implementing any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.
  • the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes any one of the above-mentioned first aspect to the second aspect or any of the implementations thereof method.
  • a computer-readable storage medium for storing a computer program that enables a computer to execute any one of the first aspect to the second aspect or the method in each implementation manner thereof.
  • a computer program product including computer program instructions that cause a computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof.
  • a computer program which when running on a computer, causes the computer to execute any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.
  • the terminal device can realize the selection of the RLC entity for split transmission when one bearer is configured with at least two RLC entities.
  • Fig. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application.
  • Figure 2 is a schematic architecture diagram of a replication transmission mode.
  • FIG. 3 is a schematic diagram of a wireless communication method provided by an embodiment of the present application.
  • Fig. 4 is a schematic diagram of an example of a split transmission mode according to an embodiment of the present application.
  • Fig. 5 is a schematic diagram of another split transmission mode according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another wireless communication method provided by an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of a terminal device provided by an embodiment of the present application.
  • Fig. 8 is a schematic block diagram of a network device provided by an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of a communication device according to another embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a chip provided by an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a communication system provided by an embodiment of the present application.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GSM Global System of Mobile Communication
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • LTE-A Advanced long term evolution
  • NR New Radio
  • NR NR system evolution system
  • LTE on unlicensed frequency bands LTE-based access to unlicensed spectrum, LTE-U
  • NR NR-based access to unlicensed spectrum, NR-U
  • UMTS Universal Mobile Telecommunication System
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • WiMAX Wireless Local Area Networks
  • WLAN Wireless Fidelity
  • WiFi next-generation communication systems or other communication systems, etc.
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • the communication system 100 applied in the embodiment of the present application is shown in FIG. 1.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or terminal).
  • the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area.
  • the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or the wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches, bridges, routers, network side devices in 5G networks, or network devices in the future evolution of Public Land Mobile Network (PLMN), etc.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • LTE Long Term Evolutional Node B
  • eNB evolved base station
  • CRAN Cloud Radio Access Network
  • the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches, bridge
  • the communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110.
  • the "terminal equipment” used here includes but is not limited to connection via wired lines, such as via public switched telephone networks (PSTN), digital subscriber lines (Digital Subscriber Line, DSL), digital cables, and direct cable connections ; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and/or another terminal device that is set to receive/send communication signals; and/or Internet of Things (IoT) equipment.
  • PSTN public switched telephone networks
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL Digital Subscriber Line
  • DSL
  • a terminal device set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a “wireless terminal” or a “mobile terminal”.
  • mobile terminals include, but are not limited to, satellite or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; as well as conventional laptop and/or palmtop receivers or others including radio telephone transceivers Electronic device.
  • PCS Personal Communications System
  • GPS Global Positioning System
  • Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in the future evolution of PLMN, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the terminal devices 120 may perform direct terminal connection (Device to Device, D2D) communication.
  • D2D Direct terminal connection
  • the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.
  • NR New Radio
  • Figure 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.
  • the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices.
  • the communication device may include a network device 110 having a communication function and a terminal device 120.
  • the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities, which are not limited in the embodiment of the present application.
  • CG Cell Group
  • the protocol architecture of the replication transmission mode can be as shown in DRB 2 in Figure 2.
  • the Packet Data Convergence Protocol (PDCP) is located in a certain CG (for example, Master CG (Master CG, MCG) or Secondary CG (Secondary CG, SCG), and can also be called master node (MN) or Secondary node (secondary node, SN)).
  • PDCP copies the PDCP protocol data unit (Protocol Data Unit, PDU) into two identical copies, for example, one is a PDCP PDU, and the other is a duplicated (Duplicated) PDCP PDU.
  • the two PDCP PDUs are controlled by different CG radio links (Radio Link).
  • two PDCP PDUs are transmitted through different CGs, which can achieve the purpose of frequency diversity gain, and thus can improve the reliability of data transmission.
  • the MAC control element CE can be dynamically activated (activate) or de-activate (de-activate) the copy transmission function of a certain bearer.
  • the entity used in the lower layer of PDCP to transmit replicated data may also be called a leg (leg or path), or may be replaced by a logical channel (Logical Channel, LCH), that is, the RLC entity may use leg or Logical channel replacement.
  • LCH Logical Channel
  • the RLC entity identifier can be replaced with the LCH identifier or the leg identifier.
  • the protocol architecture of the replication transmission mode in the CA scenario can be as shown in DRB 1 or DRB 3 in FIG. 2.
  • the replication transmission method uses the CA protocol architecture. Specifically, when the replication transmission is activated, the data generated by the PDCP layer (PDU and PDU replication data) are respectively transmitted to two different RLC entities. The RLC entities are mapped to different physical layer carriers through the same MAC layer entity. It can be understood that in the embodiment of the present application, the data generated by the PDCP layer (PDU and PDU duplicate data) are respectively mapped to different physical layer carriers through two different RLC entities, which can achieve the purpose of frequency diversity gain, and then Can improve the reliability of data transmission.
  • the terminal device may also use the two RLC entities corresponding to the bearer to transmit split data, that is, transmit different data through the two RLC entities.
  • the split transmission condition may be that the amount of PDCP data and the amount of RLC data to be transmitted of the two RCL entities is greater than or equal to a preset threshold.
  • the above is a replication transmission mode that only supports two RLC entities.
  • the replication transmission mode of at least two RLC entities is supported.
  • a CA architecture, a DC architecture, or a combination of DC and CA can be used for replication transmission.
  • the data generated by the PDCP layer (PDU and PDU duplicate data) are respectively mapped to the lower layer through at least two different RLC entities for transmission, so as to achieve the purpose of frequency diversity gain, thereby improving the reliability of data transmission.
  • FIG. 3 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the application.
  • the method 200 may be executed by the terminal device in the communication system shown in FIG. 1.
  • the method 200 may include at least part of the following content:
  • the terminal device uses at least two radio links configured by the first bearer to control the first RLC entity and the second RLC entity among the RLC entities Perform split transmission.
  • one radio bearer can correspond to at least two RLC entities.
  • the terminal device can be The target RLC entity is determined among the at least two RLC entities of the first bearer configuration, and the target RLC entity may be further used to perform split transmission.
  • the terminal device may receive configuration information of the first bearer of the network device.
  • the configuration information may include at least one of the following:
  • Primary RLC entity primary RLC entity
  • primary leg primary leg
  • the first threshold for example, the uplink split data threshold (ul-DataSplitThreshold) and/or the version 16 (Rel-16) uplink split data threshold (ul-DataSplitThreshold-r16).
  • the target RLC entity may include two RLC entities, denoted as a first RLC entity and a second RLC entity, or may also include more RLC entities, and the target RLC entity may be used for transmission Split data, that is, the terminal device can transmit different data in the split data through the two RLC entities or more RLC entities.
  • the target RLC entity may also include one RLC entity, and correspondingly, it represents that there is only one RLC entity for data transmission, that is, split transmission is not supported at this time.
  • the target RLC entity may be a primary RLC entity, a primary cell (Pcell), a primary secondary cell (Pscell), an RLC entity with a specific identifier, an RLC entity belonging to a specific CG, any RLC entity, or the first RLC entity, one of the second RLC entities.
  • the target RLC entity used in this scenario can be determined through network instructions, pre-defined, and self-determined by the terminal device.
  • the terminal device may determine whether to perform split transmission when deactivating the replication transmission of the first bearer according to the instructions or configuration of the network device. For example, if the network device instructs to enable split transmission, the terminal device may be deactivated. When the replication transmission of the first bearer meets the split transmission condition, split transmission is performed; or when the network device instructs to close the split transmission, even when the replication transmission of the first bearer is deactivated and the split transmission condition is satisfied In this case, the terminal device does not perform split transmission either.
  • the target RLC entity includes a first RLC entity and a second RLC entity as an example for description, but the embodiment of the present application is not limited to this.
  • the first bearer is configured with at least two RLC entities, for example, four, and the at least two RLC entities may belong to at least one cell group of the first bearer, that is, Each cell group in the at least one cell group corresponding to the first bearer is configured with at least one RLC entity.
  • MCG and SCG are configured with 2 RLC entities respectively, or MCG is configured with 1 RLC entity and SCG is configured with 2 or 3 RLC entities.
  • the first bearer may be DRB or SRB.
  • the first bearer is configured with a replication transmission function, and the network device can dynamically activate or de-activate the replication transmission of the first bearer. For example, the network device may activate or deactivate the replication transmission of the first bearer through the MAC CE.
  • the terminal device may select two or more RLC entities from the at least two RLC entities configured by the first bearer to perform the replication transmission.
  • the terminal device may determine whether to perform split transmission according to whether the amount of data to be transmitted corresponding to the first bearer satisfies the split transmission condition, for example, if the first bearer If the amount of data to be transmitted corresponding to a bearer meets the split transmission conditions, it is determined to perform split transmission; otherwise, it is determined to perform normal data transmission; or, the terminal device may also determine whether to perform split transmission according to the instructions of the network device, for example, if The network device instructs the terminal device to perform split transmission, and then determines to perform split transmission; otherwise, determines to perform normal data transmission. It should be understood that the normal data transmission referred to here is neither split transmission nor replication transmission. Specifically, a data packet of the first bearer is transmitted through an RLC entity.
  • the terminal device may determine the target RLC entity used for split transmission according to the first information, where the first information may be used to indicate the RLC entity used when the split transmission condition is met.
  • the RLC entity That is, the terminal device may determine the RLC entity used for split transmission according to the instruction of the network device, and may further use the RLC entity indicated by the network device to perform split transmission.
  • the first information is used to indicate at least two available (or activated) RLC entities.
  • the first information may include at least one of the following: RLC entity identification, logical channel LCH identification ID, cell group identification ID, number of RLC entities.
  • the terminal device may determine two RLC entities for split transmission among the at least two available RLC entities indicated by the first information.
  • the terminal device may also determine the RLC entity used for copy transmission among the at least two available RLC entities indicated by the first information.
  • the at least two available RLC entities may include at least one of the following: a primary RLC entity or primary leg of the first bearer, and the first The primary RLC entity of the MCG of the bearer, and the primary RLC entity of the SCG of the first bearer.
  • the primary RLC entity of the first bearer may also be the primary RLC entity of the MCG of the first bearer, or the primary RLC entity of the SCG of the first bearer, or may also be Other RLC entities in the RLC entities configured by the first bearer.
  • the first information may be configured by a network device, or may be determined by the terminal device itself, or may be predefined.
  • the first information may be carried in first signaling, and the first signaling may be any downlink signaling, for example, MAC CE, Downlink Control Information (DCI) or wireless Resource control (Radio Resource Control, RRC) signaling, etc.
  • DCI Downlink Control Information
  • RRC Radio Resource Control
  • the network device may activate or deactivate the replication transmission of the first bearer by duplicating MAC CE (Duplicated MAC CE).
  • the MAC CE used to carry the first information is not Duplicated MAC CE, that is The MAC CE is not used to perform related operations such as activating or deactivating the replication transmission of the first bearer.
  • the MAC CE carrying the first information needs to introduce a new logical channel (Logical Channel, LCH) identification (Identify, ID) to identify the MAC CE of the specific function.
  • LCH Logical Channel
  • the first signaling may also include second information, and the second information is used to indicate the RLC entity used for data transmission when the split transmission condition is not met.
  • the terminal device may determine the RLC entity for normal data transmission according to the RLC entity indicated by the second information when the replication transmission of the first bearer is deactivated and the split transmission condition is not satisfied, and may further use this The RLC entity performs normal data transmission.
  • the second information includes at least one of the following:
  • RLC entity identification logical channel LCH identification ID, cell group identification ID.
  • the first information may be carried in a first duplication MAC CE (duplication MAC CE), and the first duplication MAC CE is used to indicate the change of the RLC entity and/or the duplication of the first bearer Activation or deactivation of transmission.
  • first duplication MAC CE duplication MAC CE
  • the change of the RLC entity may refer to the change of the RLC entity configured by the first bearer.
  • the RLC entity configured for the first bearer is changed from RLC entity 1, RLC entity 2 and RLC entity 3 to RLC entity 1, RLC entity 2, and RLC entity 4.
  • the RLC entity configured with the first bearer is changed from RLC entity 1, RLC entity 2, and RLC entity 3 to RLC entity 1 and RLC entity 2.
  • the first duplicate MAC CE may further include indication information, the indication information is used to indicate the data transmission mode of the terminal device, and the data transmission mode may include at least the following: Two types: activating the replication transmission of the first bearer, deactivating the replication transmission of the first bearer, split transmission, or can also indicate more data transmission modes, for example, non-split transmission. This embodiment of the application does not Limited to this.
  • the first duplicate MAC CE may be a duplicate MAC CE supporting version 16, namely, Rel-16 duplication MAC CE.
  • version 16 at least two RLC entities are configured for one bearer.
  • the change of the RLC entity and the activation or deactivation of the replication transmission of the first bearer may only be indicated by the first duplicate MAC CE CE, which is marked as method 1; or, in other embodiments, Multiple duplicate MAC CEs may also be used, for example, the first duplicate MAC CE and the second duplicate MAC CE indicate the change of the RLC entity and the activation or deactivation of the duplicate transmission of the first bearer, where the first duplicate MAC CE
  • the function allocation between the CE and the second copy MAC is not limited.
  • the function allocation between the first replicated MAC CE and the second replicated MAC CE may be in the following typical implementation manners:
  • the first replicated MAC CE is used to indicate the change of the RLC entity, and the second replicated MAC CE is used to indicate the activation or deactivation of the replication transmission of the first bearer, which is marked as way 2;
  • the first copy MAC CE is used to indicate the change of the RLC entity, the activation and split transmission of the first bearer's copy transmission, and the second copy MAC CE is used to indicate the deactivation of the first bearer's copy transmission , Marked as mode 3;
  • the first duplicate MAC CE is used to indicate the change of the RLC entity and the activation or deactivation of the duplicate transmission of the first bearer
  • the second duplicate MAC CE is used to indicate the activation or deactivation of the duplicate transmission of the first bearer. Deactivate, record as mode 4;
  • the first duplicate MAC CE is used to indicate the change of the RLC entity and the split transmission of the first bearer
  • the second duplicate MAC CE is used to indicate the activation or deactivation of the duplicate transmission of the first bearer, which is denoted as Manner 5:
  • the first duplicate MAC CE is used to indicate the change of the RLC entity
  • the second duplicate MAC CE is used to indicate the activation or deactivation of the duplicate transmission of the first bearer
  • the split transmission of the first bearer Marked as mode 6.
  • the second duplicate MAC CE may be a duplicate MAC CE supporting version 15, namely Rel-15 duplication MAC CE.
  • version 15 two RLC entities are configured for one bearer.
  • the data transmission mode of the terminal device and the determination method of the RLC entity used in the data transmission mode are respectively described.
  • the first copied MAC CE may include indication information for indicating the data transmission mode, that is, the network device can configure the data transmission mode of the terminal device through the first copied MAC CE, and the terminal device may The indication information and the first information determine the current data transmission mode of the terminal device and the RLC entity used in the data transmission mode.
  • the indication information may indicate three data transmission modes of activating the replication transmission of the first bearer, deactivating the replication transmission of the first bearer, and split transmission of the first bearer, as example 1,
  • the indication information may be 2 bits. For example, 00 may be used to indicate the activation of the replication transmission of the first bearer, 01 to indicate the deactivation of the replication transmission of the first bearer, and 10 to indicate the split transmission.
  • the indication information may indicate the activation of two data transmission modes of copy transmission of the first bearer and split transmission of the first bearer.
  • the indication information may be 1 bit, for example, 1 can be used to indicate the activation of the replication transmission of the first bearer, and 0 to indicate the split transmission.
  • Example 1 the method for determining the RLC entity used in each data transmission mode is explained.
  • the indication information is 00
  • the first information indicates that the identifiers of the available RLC entities are 1 and 2
  • the terminal device may use the RLC entity 1 and the RLC entity 2 to perform duplication transmission.
  • the indication information is 10
  • the first information indicates that the identifiers of the available RLC entities are 1 and 2
  • the terminal device may use the RLC entity 1 and the RLC entity 2 to perform split transmission.
  • the terminal device can use RLC entity 1 and/or RLC entity 2 for normal data transmission, or if The first replicated MAC CE includes second information, and the terminal device may also determine the RLC entity used for normal data transmission according to the second information.
  • the indication information may indicate two data transmission modes of activating the copy transmission of the first bearer and deactivating the copy transmission of the first bearer.
  • the indication information may be 2 bits. For example, 00 can be used to deactivate duplication, and 01 to deactivate duplication.
  • the indication information can be 1 bit. For example, 1 can be used to deactivate the replication transmission of the first bearer, and 0 to deactivate the first bearer. Copy transmission of a bearer.
  • Example 4 Take Example 4 as an example to illustrate the method of determining the RLC entity used in each data transmission mode.
  • the indication information is 1, the first information indicates that the identifiers of the available RLC entities are 1 and 2, and the terminal device may use the RLC entity 1 and the RLC entity 2 to perform duplication transmission.
  • the indication information is 0 and the first information indicates that the identifiers of the available RLC entities are 1 and 2, then the terminal device can use the RLC entity 1 and the RLC entity 2 for split transmission when the split transmission condition is met.
  • the RLC entity 1 and/or the RLC entity 2 are used for data transmission, or the master RLC entity is used for data transmission, or if the first duplicate MAC CE includes the second information, it can also be Perform data transmission according to the RLC entity indicated by the second information.
  • the terminal device receives the second duplicate MAC CE, the second duplicate MAC CE is used to instruct to deactivate the duplicate transmission of the first bearer, and then the first duplicate MAC CE is received, and the first duplicate MAC CE includes the first information,
  • the first information is used to indicate at least two available RLC entities (for example, RLC entity 1 and RLC entity 2).
  • the terminal device may determine the RLC entity used for split transmission among the at least two available RLC entities, for example, combine RLC entity 1 and RLC entity 1 with RLC entity Entity 2 is determined as the RLC entity that performs split transmission.
  • the terminal device may also determine the RLC entity that performs data transmission according to the second information.
  • the first replication MAC CE may include indication information for indicating the data transmission mode, and the data transmission mode may be the replication transmission and split transmission of the activation of the first bearer.
  • the The second copy MAC CE may also include indication information for instructing to deactivate the copy transmission of the first bearer.
  • the indication information in the first duplicate MAC CE is recorded as the first indication information
  • the indication information in the second duplicate MAC CE is recorded as the second indication information
  • the first indication information may be 2 bits. For example, 00 may be used to indicate activation of copy transmission of the first bearer, and 01 may be used to indicate split transmission; or, the first indication information may be 1 bit, for example, 1 may be used. Indicates that the replication transmission of the first bearer is activated, and 0 means split transmission. Then, the terminal device determines the current data transmission mode according to the value of the indication information in the first copied MAC CE, and can further determine the usable (or in other words, the first information in the first copied MAC CE). , Activated) RLC entity.
  • the second indication information may be 1 bit. For example, 0 may be used to deactivate the replication transmission of the first bearer, and 1 may be used to indicate that the data transmission mode of the terminal device is not switched.
  • the terminal device receives a second duplicate MAC CE, the second duplicate MAC CE is used to instruct to deactivate the replication transmission of the first bearer, the terminal device also receives the first duplicate MAC CE, the The first copy MAC CE is used to indicate at least two available RLC entities (for example, RLC entity 1 and RLC entity 2). Then when the split transmission condition is met, the terminal device may determine the RLC entity used for split transmission among the at least two available RLC entities, for example, determine the RLC entity 1 and the RLC entity 2 as the RLC for split transmission. entity. Or, when the split transmission condition is not met, use one or more of the at least two available RLC entities to transmit the PDCP PDU of the first bearer, or use the primary RLC entity to transmit the PDCP PDU of the first bearer .
  • the split transmission condition is not met, use one or more of the at least two available RLC entities to transmit the PDCP PDU of the first bearer, or use the primary RLC entity to transmit the PDCP PDU of the first
  • the terminal device receives the first duplicate MAC CE, the indication information in the first duplicate MAC CE indicates that the duplicate transmission of the first bearer is activated, and the first duplicate MAC CE in the first duplicate MAC CE One piece of information indicates at least two available RLC entities (for example, RLC entity 1 and RLC entity 2). Then, the terminal device may determine the RLC entity used for the replication transmission among the at least two available RLC entities, for example, determine the RLC entity 1 and the RLC entity 2 as the RLC entities for the replication transmission.
  • the terminal device may determine the RLC entity used for the replication transmission among the at least two available RLC entities, for example, determine the RLC entity 1 and the RLC entity 2 as the RLC entities for the replication transmission.
  • Both the first replicated MAC CE and the second replicated MAC CE can be used to indicate the activation and deactivation status of the replication transmission of the first bearer, and at the same time, the second replicated MAC CE can also be used to indicate at least one RLC Entity, used for data transmission in a specific data transmission mode.
  • the terminal device when the terminal device receives the first duplicate MAC CE, it may change the activation state of the duplicate transmission of the first bearer or replace the RLC entity according to the instruction of the first duplicate MAC CE.
  • the terminal device receives the second duplicate MAC CE, it can change the activation state of the duplicate transmission of the first bearer according to the instruction of the second duplicate MAC CE.
  • the terminal device can perform replication transmission through the initially configured activated RLC entity, where the initial configuration is used to configure the RLC entity used when activating the replication transmission of the first bearer, and the initial configuration can be determined by RRC information.
  • Command or MAC CE configuration or the terminal device may also use the RLC entity used for the last active copy transmission on the first bearer to perform the copy transmission. For example, if the last copy transmission is through the RLC entity 1 If it is transmitted with the RLC entity 2, the terminal device can perform replication transmission through these two RLC entities.
  • the terminal device receives the first copy MAC CE, which is used to instruct to deactivate the copy transmission of the first bearer, the terminal device deactivates the copy transmission of the first bearer, or the first copy MAC CE uses
  • the terminal device performs the replication transmission according to the RLC entity indicated by the first information in the first replication MAC CE. For example, if the RLC entities indicated by the first information are RLC entity 1 and RLC entity 2, the terminal device may use the RLC entity 1 and RLC entity 2 to perform replication transmission.
  • the terminal device may also use the first information in the first duplicate MAC CE Determine the RLC entity for split transmission and the RL entity for non-split transmission.
  • the terminal device can use RLC entity 1 and RLC entity 2 for split transmission, or if the split transmission conditions are not met.
  • the terminal device can use RLC entity 1 and/or RLC entity 2 for data transmission, or if there is a master RLC entity in the RLC entity 1 and RLC entity 2, the terminal device can use the The master RLC entity performs data transmission, or if there is no master RLC entity in the RLC entity 1 and the RLC entity 2, the terminal device may also choose to use the master RLC entity for data transmission.
  • the terminal device may also determine the RL entity that performs non-split transmission according to the second information.
  • the details are not repeated here, and the relevant descriptions in the foregoing methods can be referred to. For brevity, the details are not repeated here.
  • the first duplicate MAC CE may include first information for indicating at least two available RLC entities, such as RLC entity 1 and RLC entity 2, and the terminal device may receive the second duplicate MAC CE, if If the second duplicate MAC CE indicates to deactivate the duplicate transmission of the first bearer, the terminal device may determine from the at least two available RLC entities indicated by the first information when the split transmission condition is satisfied
  • the RLC entity performing split transmission for example, may determine the RLC entity 1 and the RLC entity 2 as the RLC entity performing split transmission, or the second replication MAC CE indicates to activate the replication transmission of the first bearer At this time, the RLC entity 1 and the RLC entity 2 are used for replication transmission.
  • the terminal device receives a first duplicate MAC CE, where the first duplicate MAC CE is used to indicate split transmission of the first bearer, and the first duplicate MAC CE further includes first information for Indicating at least two available RLC entities, such as RLC entity 1 and RLC entity 2, then the terminal device may determine the RLC entity for split transmission among the at least two available RLC entities indicated by the first information, for example The RLC entity 1 and the RLC entity 2 may be determined as RLC entities for split transmission.
  • the first duplicate MAC CE is used to indicate the change of the RLC entity
  • the second duplicate MAC CE is used to indicate the activation or deactivation of the duplicate transmission of the first bearer, and the split transmission of the first bearer.
  • the details are not repeated here, and the relevant descriptions in the foregoing methods can be referred to. For brevity, the details are not repeated here.
  • the terminal device may receive a first duplicate MAC CE, where the first duplicate MAC CE includes first information, and the first information is used to indicate at least two available RLC entities, such as RLC entity 1 and RLC entity 1 and RLC entity.
  • Entity 2 The terminal device may also receive a second duplicate MAC CE. The following describes how to determine the RLC entity in the three data transmission modes indicated by the second duplicate MAC CE.
  • Case 1 The second replicated MAC CE is used to instruct to activate the replication transmission of the first bearer, then the terminal device may determine the RLC entity for replication transmission among the at least two available RLC entities, for example, Determining the RLC entity 1 and the RLC entity 2 as RLC entities for replication transmission, and further using the RLC entity 1 and the RLC entity 2 to transmit the replication data;
  • the second duplicate MAC CE is used to instruct to deactivate the duplicate transmission of the first bearer, then the terminal device may determine to proceed in the at least two available RLC entities when the split transmission condition is satisfied
  • the RLC entity for split transmission for example, the RLC entity 1 and RLC entity 2 are determined as RLC entities for split transmission, and the RLC entity 1 and RLC entity 2 are further used to transmit the split data; or when the split transmission conditions are not met, Determine the RLC entity for normal data transmission among the at least two available RLC entities, for example, determine the RLC entity 1 and/or RLC entity 2 as the RLC entity for normal data transmission;
  • the second duplicate MAC CE is used to indicate split transmission of the first bearer, and the terminal device may determine the RLC entity for split transmission among the at least two available RLC entities, for example, The RLC entity 1 and the RLC entity 2 are determined to be RLC entities for split transmission, and the RLC entity 1 and the RLC entity 2 are further used to transmit the split data.
  • the first bearer is DRB1
  • 4 RLC entities are configured, RLC entity 1, RLC entity 2, and RLC entity 3 and RLC entity 4.
  • RLC entity 1, RLC entity 2, and RLC entity 3 correspond to MAC entity a
  • the MAC entity a corresponds to MCG.
  • MCG has three component carriers (CC), which are CC1.
  • RLC entity 4 corresponds to MAC entity b, corresponding to SCG, there is a CC4; in the example shown in Figure 5, RLC entity 1 and RLC entity 2 correspond to MAC entity a, the MAC entity a corresponds to MCG, and there are two MCGs There are two CCs, namely CC1 and CC2, RLC entity 3 and RLC entity 4 correspond to MAC entity b, and correspond to SCG.
  • the SCG has two CCs, namely CC3 and CC4.
  • the terminal device may select RLC from RLC entity 1 and RLC entity 2 corresponding to MCG Entity 1, and RLC entity 4 is selected as the RLC entity for split transmission among the RLC entities corresponding to the SCG. Further, the RLC entity 1 and the RLC entity 4 may map the split data to different CCs through corresponding MAC entities, and further transmit to the network device.
  • the terminal device may be in the RLC entity 1 and RLC entity corresponding to the MCG.
  • the RLC entity 1 is selected in 2
  • the RLC entity 4 is selected as the RLC entity for split transmission in the RLC entity 3 and RLC entity 4 corresponding to the SCG.
  • the RLC entity 1 and the RLC entity 4 may map the split data to different CCs through corresponding MAC entities, and further transmit to the network device.
  • the terminal device when the first bearer is configured with at least two RLC entities, the terminal device can determine the RLC entity for split transmission according to the first information, which can solve the problem of the RLC entity corresponding to one bearer.
  • the problem of how to transmit the split data can also ensure that the understanding of the terminal device and the network device is consistent, so as to ensure the normal reception of data.
  • the RLC entity used for split transmission may be selected by the terminal device based on the first information, or may be independently selected by the terminal device, for example, the terminal device
  • two RLC entities are selected as RLC entities for split transmission among the primary leg of the first bearer, the primary RLC entity of the MCG of the first bearer, and the primary RLC entity of the SCG of the first bearer.
  • the target RLC entity used by the terminal device for split transmission may include a combination of any two types of RLC entities as follows:
  • the primary RLC entity of the primary cell group MCG of the first bearer is the primary RLC entity of the primary cell group MCG of the first bearer
  • the primary RLC entity of the secondary cell group SCG of the first bearer is the primary RLC entity of the secondary cell group SCG of the first bearer
  • the secondary RLC entity of the primary cell group MCG of the first bearer is the secondary RLC entity of the primary cell group MCG of the first bearer
  • the secondary RLC entity of the secondary cell group SCG of the first bearer is the secondary RLC entity of the secondary cell group SCG of the first bearer.
  • the target RLC entity may be one of the following combinations:
  • the primary RLC entity of the primary cell group MCG of the first bearer and the primary RLC entity of the secondary cell group SCG of the first bearer are combined.
  • the terminal device when a bearer is configured with at least two RLC entities, the terminal device prefers to be the primary leg of the first bearer, the primary RLC entity of the MCG of the first bearer, and the primary RLC entity of the MCG of the first bearer.
  • the selection of the RLC entity for split transmission from the primary RLC entity of the SCG of the first bearer is beneficial to ensure reliable data transmission.
  • the terminal device may also select a third RLC entity for data transmission, where:
  • the third RLC entity may be determined according to the first information, for example, one or more RLC entities may be determined among the RLC entities indicated by the first information, or may also be determined according to the second information , Or it may be independently selected by the terminal device.
  • the terminal device may preferentially be the primary leg of the first bearer, the primary RLC entity of the MCG of the first bearer, and the SCG of the first bearer Select one or more RLC entities from the master RLC entity for data transmission.
  • the third RLC entity includes at least one of the following:
  • the primary RLC entity of the first bearer is the primary RLC entity of the first bearer
  • the primary RLC entity of the primary cell group MCG of the first bearer is the primary RLC entity of the primary cell group MCG of the first bearer
  • the primary RLC entity of the secondary cell group SCG of the first bearer is the primary RLC entity of the secondary cell group SCG of the first bearer
  • the RLC entity identified by the specific LCH of the first bearer is the RLC entity identified by the specific LCH of the first bearer.
  • the split transmission condition may be that the amount of data to be transmitted corresponding to the first bearer is greater than or equal to a first threshold.
  • the amount of data to be transmitted corresponding to the first bearer is one of the following:
  • the total size of the PDCP data volume and the RLC data volume waiting for initial transmission that is, the at least two RLC entities in the first configuration are waiting for transmission and transmission
  • the total size of the PDCP data volume and the RLC data volume waiting for initial transmission for example, if the first bearer is configured with RLC entity 1, RLC entity 2 and RLC Entity 4.
  • the currently activated RLC entities are RLC entity 1 and RLC entity 2, and the amount of data to be transmitted corresponding to the first bearer is the total amount of PDCP data and RLC data that are waiting for initial transmission by RLC entity 1 and RLC entity 2 size;
  • the total size of the PDCP data volume and the RLC data volume waiting for initial transmission for example, if the first bearer is configured with RLC entity 1 and RLC entity 2 , RLC entity 3 and RLC entity 4, the RLC entities activated for the first replication transmission are RLC entity 1 and RLC entity 2, and the RLC entities activated for the second replication transmission are RLC entity 1 and RLC entity 3, then the first The RLC entities configured and activated for the bearer include RLC entity 1, RLC entity 2, and RLC entity 3.
  • the amount of data to be transmitted corresponding to the first bearer is RLC entity 1, and RLC entity 2 and RLC entity 3 are waiting for initial transmission
  • the total size of the PDCP data volume and the RLC data volume waiting for initial transmission among the RLC entities that have been activated and have data to be transmitted in the first bearer configuration for example, if the first bearer is configured with the RLC entity 1 , RLC entity 2, RLC entity 3, and RLC entity 4.
  • the RLC entity configured and activated by the first bearer includes RLC entity 1, RLC entity 2 and RLC entity 3.
  • the RLC entities to be transmitted in entity 3 include RLC entity 1 and RLC entity 3.
  • the amount of data to be transmitted corresponding to the first bearer is the amount of PDCP data and the amount of RLC data waiting for initial transmission in RLC entity 1 and RLC entity 3
  • the total size of the PDCP data volume and the RLC data volume waiting for the initial transmission among the activated RLC entities that are configured with the first bearer and have initial transmission data for example, if the first bearer is configured with an RLC entity 1.
  • the RLC entity configured and activated by the first bearer includes RLC entity 1, RLC entity 2, and RLC entity 3.
  • the RLC entity with initial transmission data in the RLC entity 3 includes the RLC entity 1 and the RLC entity 3, and the amount of data to be transmitted corresponding to the first bearer is the amount of PDCP data waiting for initial transmission and the RLC in the RLC entity 1 and the RLC entity 3.
  • the total size of the PDCP data volume and the RLC data volume waiting for initial transmission in the first RLC entity and the second RLC entity that is, the PDCP data volume and the RLC data volume waiting for the initial transmission in the RLC entity performing split transmission The total amount.
  • the terminal device when the terminal device can redefine the split transmission conditions, it can fully consider the amount of data to be transmitted on the RLC entity that may have data to be transmitted, which is beneficial to ensure that the data to be transmitted is All data on the RLC entity can be transmitted.
  • FIG. 6 is a schematic flowchart of a wireless communication method 400 according to still another embodiment of the present application.
  • the method 400 may be executed by a network device in the communication system shown in FIG. 1. As shown in FIG. 6, the method 400 includes The following content:
  • the network device sends first information to the terminal device, where the first information is used to indicate the RLC entity used when the replication transmission of the bearer is deactivated and the split transmission condition is met.
  • the first information is carried in first signaling, and the first signaling is at least one of the following signaling:
  • Media access control MAC control unit CE Downlink control information DCI and radio resource control RRC signaling.
  • the first information includes at least one of the following:
  • RLC entity identifier logical channel LCH identifier, cell group identifier, number of RLC entities.
  • the first signaling further includes second information, and the second information is used to indicate the RLC entity used for data transmission when the split transmission condition is not met.
  • the second information includes at least one of the following:
  • RLC entity ID logical channel LCH ID, cell group ID.
  • the MAC CE is not a duplicate MAC CE, and the MAC CE corresponds to a specific logical channel LCH identifier.
  • the first information is carried in a first replicated MAC CE, and the first replicated MAC CE is used to indicate the change of the RLC entity and/or the replication transmission of the first bearer Activate or deactivate.
  • the first duplicate MAC CE further includes indication information, the indication information is used to indicate a data transmission mode, and the data transmission mode includes at least two of the following:
  • the first duplicate MAC CE is used to indicate the change of the RLC entity, and the second duplicate MAC CE is used to indicate the activation or deactivation of the duplicate transmission of the first bearer;
  • the first duplicate MAC CE is used to indicate the change of the RLC entity and the activation or deactivation of the duplicate transmission of the first bearer;
  • the first copy MAC CE is used to indicate the change of the RLC entity and the activation of the copy transmission of the first bearer, and the second copy MAC CE is used to indicate the deactivation of the copy transmission of the first bearer;
  • the first copy MAC CE is used to indicate the change of the RLC entity and the activation or deactivation of the copy transmission of the first bearer
  • the second copy MAC CE is used to indicate the activation or deactivation of the copy transmission of the first bearer .
  • the first duplicated MAC CE is a version 16 duplicated MAC CE
  • the second duplicated MAC CE is a version 15 duplicated MAC CE.
  • FIG. 7 shows a schematic block diagram of a terminal device 500 according to an embodiment of the present application.
  • the terminal device 500 includes:
  • the communication module 510 is configured to use the first RLC entity and the second RLC entity among the at least two radio link control RLC entities configured by the first bearer when the replication transmission of the first bearer is deactivated and the split transmission condition is satisfied.
  • the entity performs split transmission.
  • the terminal device further includes:
  • the determining module is configured to determine the first RLC entity and the second RLC entity used for split transmission among the at least two RLC entities of the first bearer configuration.
  • the determining module is specifically configured to:
  • the first RLC entity and the second RLC entity used for split transmission are determined according to the first information, where the first information is used to indicate the RLC entity used when the split transmission condition is met.
  • the first information is carried in first signaling, and the first signaling is at least one of the following signaling:
  • Media access control MAC control unit CE Downlink control information DCI and radio resource control RRC signaling.
  • the first information includes at least one of the following:
  • RLC entity identifier logical channel LCH identifier, cell group identifier, number of RLC entities.
  • the first signaling further includes second information, and the second information is used to indicate the RLC entity used for data transmission when the split transmission condition is not met.
  • the second information includes at least one of the following:
  • RLC entity ID logical channel LCH ID, cell group ID.
  • the MAC CE is not a copy of the MAC CE, and the MAC CE corresponds to a specific logical channel LCH identifier.
  • the first information is carried in a first replicated MAC CE, and the first replicated MAC CE is used to indicate the change of the RLC entity and/or the activation or deactivation of the replication transmission of the first bearer.
  • the first information is used to indicate at least two available RLC entities, and the determining module is specifically used to:
  • the first RLC entity and the second RLC entity used for split transmission are determined among the at least two available RLC entities.
  • the first duplicate MAC CE further includes indication information, the indication information is used to indicate a data transmission mode, and the data transmission mode includes at least two of the following:
  • the determining module is further used for:
  • the RLC entity that performs data transmission is determined among the at least two available RLC entities indicated by the first information.
  • the first duplicate MAC CE is used to indicate the change of the RLC entity, and the second duplicate MAC CE is used to indicate the activation or deactivation of the duplicate transmission of the first bearer;
  • the first duplicate MAC CE is used to indicate the change of the RLC entity and the activation or deactivation of the duplicate transmission of the first bearer;
  • the first copy MAC CE is used to indicate the change of the RLC entity and the activation of the copy transmission of the first bearer, and the second copy MAC CE is used to indicate the deactivation of the copy transmission of the first bearer;
  • the first copy MAC CE is used to indicate the change of the RLC entity and the activation or deactivation of the copy transmission of the first bearer
  • the second copy MAC CE is used to indicate the activation or deactivation of the copy transmission of the first bearer .
  • the first replicated MAC CE is a version 16 replicated MAC CE
  • the second replicated MAC CE is a version 15 replicated MAC CE.
  • the first RLC entity and the second RLC entity are a combination of any two of the following:
  • the primary RLC entity of the first bearer is the primary RLC entity of the first bearer
  • the primary RLC entity of the primary cell group MCG of the first bearer is the primary RLC entity of the primary cell group MCG of the first bearer
  • the primary RLC entity of the secondary cell group SCG of the first bearer is the primary RLC entity of the secondary cell group SCG of the first bearer
  • the secondary RLC entity of the primary cell group MCG of the first bearer is the secondary RLC entity of the primary cell group MCG of the first bearer
  • the secondary RLC entity of the secondary cell group SCG of the first bearer is the secondary RLC entity of the secondary cell group SCG of the first bearer.
  • the communication module 510 is further configured to:
  • the third RLC entity is used for data transmission.
  • the third RLC entity includes at least one of the following:
  • the primary RLC entity of the first bearer is the primary RLC entity of the first bearer
  • the primary RLC entity of the primary cell group MCG of the first bearer is the primary RLC entity of the primary cell group MCG of the first bearer
  • the primary RLC entity of the secondary cell group SCG of the first bearer is the primary RLC entity of the secondary cell group SCG of the first bearer
  • the RLC entity identified by the specific LCH of the first bearer is the RLC entity identified by the specific LCH of the first bearer.
  • the split transmission condition includes that the amount of data to be transmitted corresponding to the first bearer is greater than a first threshold.
  • the amount of data to be transmitted corresponding to the first bearer is one of the following:
  • the above-mentioned communication module may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned determining module may be one or more processors.
  • terminal device 500 may correspond to the terminal device in the method embodiment of the present application, and the above and other operations and/or functions of each unit in the terminal device 500 are to implement the method shown in FIG. 3, respectively.
  • the corresponding process of the terminal equipment in 200 will not be repeated here.
  • Fig. 8 is a schematic block diagram of a network device according to an embodiment of the present application.
  • the network device 700 shown in FIG. 8 includes:
  • the communication module 710 is configured to send first information to the terminal device, where the first information is used to indicate the RLC entity used when the replication transmission of the bearer is deactivated and the split transmission condition is met.
  • the first information is carried in first signaling, and the first signaling is at least one of the following signaling:
  • Media access control MAC control unit CE Downlink control information DCI and radio resource control RRC signaling.
  • the first information includes at least one of the following:
  • RLC entity identifier logical channel LCH identifier, cell group identifier, number of RLC entities.
  • the first signaling further includes second information, and the second information is used to indicate the RLC entity used for data transmission when the split transmission condition is not met.
  • the second information includes at least one of the following:
  • RLC entity ID logical channel LCH ID, cell group ID.
  • the MAC CE is not a copy of the MAC CE, and the MAC CE corresponds to a specific logical channel LCH identifier.
  • the first information is carried in a first replicated MAC CE, and the first replicated MAC CE is used to indicate the change of the RLC entity and/or the activation or deactivation of the replication transmission of the first bearer.
  • the first duplicate MAC CE further includes indication information, the indication information is used to indicate a data transmission mode, and the data transmission mode includes at least two of the following:
  • the first duplicate MAC CE is used to indicate the change of the RLC entity, and the second duplicate MAC CE is used to indicate the activation or deactivation of the duplicate transmission of the first bearer;
  • the first duplicate MAC CE is used to indicate the change of the RLC entity and the activation or deactivation of the duplicate transmission of the first bearer;
  • the first copy MAC CE is used to indicate the change of the RLC entity and the activation of the copy transmission of the first bearer, and the second copy MAC CE is used to indicate the deactivation of the copy transmission of the first bearer;
  • the first copy MAC CE is used to indicate the change of the RLC entity and the activation or deactivation of the copy transmission of the first bearer
  • the second copy MAC CE is used to indicate the activation or deactivation of the copy transmission of the first bearer .
  • the first replicated MAC CE is a version 16 replicated MAC CE
  • the second replicated MAC CE is a version 15 replicated MAC CE.
  • the above-mentioned communication module may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the network device 700 may correspond to the terminal device in the method embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the network device 700 are to implement the method shown in FIG. 6 respectively.
  • the corresponding process of the network equipment in 400 will not be repeated here.
  • FIG. 9 is a schematic structural diagram of a communication device 1100 according to an embodiment of the present application.
  • the communication device 1100 shown in FIG. 9 includes a processor 1110, and the processor 1110 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the communication device 1100 may further include a memory 1120.
  • the processor 1110 can call and run a computer program from the memory 1120 to implement the method in the embodiment of the present application.
  • the memory 1120 may be a separate device independent of the processor 1110, or may be integrated in the processor 1110.
  • the communication device 1100 may further include a transceiver 1130, and the processor 1110 may control the transceiver 1130 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.
  • the transceiver 1130 may include a transmitter and a receiver.
  • the transceiver 1130 may further include an antenna, and the number of antennas may be one or more.
  • the communication device 1100 may specifically be a network device of an embodiment of the application, and the communication device 1100 may implement the corresponding process implemented by the network device in each method of the embodiment of the application. For the sake of brevity, it will not be repeated here. .
  • the communication device 1100 may specifically be a mobile terminal/terminal device of an embodiment of the application, and the communication device 1100 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the application.
  • I won’t repeat it here.
  • FIG. 10 is a schematic structural diagram of a chip of an embodiment of the present application.
  • the chip 1200 shown in FIG. 10 includes a processor 1210, and the processor 1210 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the chip 1200 may further include a memory 1220.
  • the processor 1210 can call and run a computer program from the memory 1220 to implement the method in the embodiment of the present application.
  • the memory 1220 may be a separate device independent of the processor 1210, or may be integrated in the processor 1210.
  • the chip 1200 may further include an input interface 1230.
  • the processor 1210 can control the input interface 1230 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.
  • the chip 1200 may further include an output interface 1240.
  • the processor 1210 can control the output interface 1240 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application.
  • the chip mentioned in the embodiment of the present application may also be called a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip.
  • FIG. 11 is a schematic block diagram of a communication system 900 according to an embodiment of the present application. As shown in FIG. 11, the communication system 900 includes a terminal device 910 and a network device 920.
  • the terminal device 910 can be used to implement the corresponding function implemented by the terminal device in the above method
  • the network device 920 can be used to implement the corresponding function implemented by the network device in the above method. For brevity, it will not be repeated here. .
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC application specific integrated circuit
  • FPGA Field Programmable Gate Array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • DDR SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • Enhanced SDRAM, ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • Synchronous Link Dynamic Random Access Memory Synchronous Link Dynamic Random Access Memory
  • DR RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memory in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.
  • the embodiments of the present application also provide a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application For the sake of brevity, I won’t repeat it here.
  • the embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, For the sake of brevity, I will not repeat them here.
  • the embodiment of the present application also provides a computer program.
  • the computer program may be applied to the network device in the embodiment of the present application.
  • the computer program When the computer program is run on the computer, the computer is caused to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity , I won’t repeat it here.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.
  • the disclosed system, device, and method can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disks or optical disks and other media that can store program codes. .

Abstract

一种无线通信的方法、终端设备和网络设备，该方法包括：在去激活第一承载的复制传输并且满足分裂传输条件的情况下，终端设备使用所述第一承载配置的至少两个无线链路控制RLC实体中的第一RLC实体和第二RLC实体进行分裂传输。

Description

无线通信的方法、终端设备和网络设备 技术领域
本申请实施例涉及通信领域，具体涉及一种无线通信的方法、终端设备和网络设备。
背景技术
在新无线(New Radio，NR)系统中，为了提高数据传输的可靠性，终端设备可以采用复制传输的方式，具体地，在版本15(Rel-15)中，一个承载可以配置两个无线链路控制(Radio Link Control，RLC)实体，该承载对应的分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层可以将PDCP协议数据单元(Protocol Data Unit，PDU)复制为相同的两份，比如一个是PDCP PDU，一个是复制(Duplicated)PDCP PDU，两份PDCP PDU经过不同的RLC层以及媒体接入控制(Media Access Control，MAC)层，最后经过空口传输给网络设备。并且，在去激活复制传输并且满足分裂(split)传输条件的情况下，终端设备可以通过该承载对应的两个RLC实体传输分裂数据，即通过不同的RLC实体传输不同的数据。其中，该分裂传输条件为这两个RLC实体的待传输的PDCP数据量和RLC数据量大于或等于预设门限。
在版本16(Rel-16，R16)中，考虑为承载配置更多个RLC实体，例如4个，此情况下，如何确定分裂传输条件以及如何确定进行分裂传输的RLC实体是一项亟需解决的问题。
发明内容
本申请实施例提供一种无线通信的方法、终端设备和网络设备，能够在一个承载配置有至少两个RLC实体时确定进行分裂传输的条件以及进行分裂传输所使用的RLC实体。
第一方面，提供了一种无线通信的方法，包括：在去激活第一承载的复制传输并且满足分裂传输条件的情况下，终端设备使用所述第一承载配置的至少两个无线链路控制RLC实体中的第一RLC实体和第二RLC实体进行分裂传输。
第二方面，提供了一种无线通信的方法，包括：网络设备向终端设备发送第一信息，所述第一信息用于指示去激活承载的复制传输并且满足分裂传输条件时所使用的RLC实体。
第三方面，提供了一种终端设备，用于执行上述第一方面其各种实现方式中的方法。具体地，该终端设备包括用于执行上述第一方面或其各种实现方式中的方法的单元。
第四方面，提供了一种网络设备，用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。具体地，该网络设备包括用于执行上述第二方面或第二方面的任一可能的实现方式中的方法的单元。
第五方面，提供了一种终端设备，该终端设备包括：包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第一方面或其各实现方式中的方法。
第六方面，提供了一种网络设备，该网络设备包括：包括处理器和存储器。该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第二方面或其各实现方式中的方法。
第七方面，提供了一种芯片，用于实现上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
具体地，该芯片包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该芯片的设备执行如上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第八方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第九方面，提供了一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第十方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
基于上述技术方案，终端设备可以实现在一个承载配置有至少两个RLC实体时对进行分裂传输时的RLC实体的选择。
附图说明
图1是本申请实施例提供的一种应用场景的示意性图。
图2是复制传输方式的示意性架构图。
图3是本申请实施例提供的一种无线通信的方法的示意性图。
图4是根据本申请实施例的一例分裂传输方式的示意图。
图5是根据本申请实施例的另一例分裂传输方式的示意图。
图6是本申请实施例提供的另一种无线通信的方法的示意性图。
图7是本申请实施例提供的一种终端设备的示意性框图。
图8是本申请实施例提供的一种网络设备的示意性框图。
图9是本申请另一实施例提供的一种通信设备的示意性框图。
图10是本申请实施例提供的一种芯片的示意性框图。
图11是本申请实施例提供的一种通信系统的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、新无线(New Radio，NR)系统、NR系统的演进系统、非授权频段上的LTE(LTE-based access to unlicensed spectrum，LTE-U)系统、非授权频段上的NR(NR-based access to unlicensed spectrum，NR-U)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)、下一代通信系统或其他通信系统等。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(Device to Device，D2D)通信，机器到机器(Machine to Machine，M2M)通信，机器类型通信(Machine Type Communication，MTC)，以及车辆间(Vehicle to Vehicle，V2V)通信等，本申请实施例也可以应用于这些通信系统。
示例性的，本申请实施例应用的通信系统100如图1所示。该通信系统100可以包括网络设备110，网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。可选地，该网络设备110可以是GSM系统或CDMA系统中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备等。
该通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备120。作为在此使用的“终端设备”包括但不限于经由有线线路连接，如经由公共交换电话网络(Public Switched Telephone Networks，PSTN)、数字用户线路(Digital Subscriber Line，DSL)、数字电缆、直接电缆连接；和/或另一数据连接/网络；和/或经由无线接口，如，针对蜂窝网络、无线局域网(Wireless Local Area Network，WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器；和/或另一终端设备的被设置成接收/发送通信信号的装置；和/或物联网(Internet of Things，IoT)设备。被设置成通过无线接口通信的终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(Personal Communications System，PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(Global Positioning System，GPS)接收器的PDA；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless  Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
可选地，终端设备120之间可以进行终端直连(Device to Device，D2D)通信。
可选地，5G系统或5G网络还可以称为新无线(New Radio，NR)系统或NR网络。
图1示例性地示出了一个网络设备和两个终端设备，可选地，该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
可选地，该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统100为例，通信设备可包括具有通信功能的网络设备110和终端设备120，网络设备110和终端设备120可以为上文所述的具体设备，此处不再赘述；通信设备还可包括通信系统100中的其他设备，例如网络控制器、移动管理实体等其他网络实体，本申请实施例中对此不做限定。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
下面结合图2，对本申请实施例中的DC或CA场景下的复制传输方法进行简单介绍。
在双连接(Dual Connection，DC)场景下，多个网络节点(小区组(Cell Group，CG))可以为终端设备服务，小区组和终端设备之间可以进行复制传输。应理解，在本申请实施例中，CG可以等同于网络节点或网络设备等。
具体地，在DC场景下，复制传输方式的协议架构可以如图2中的DRB 2所示。分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)位于某一个CG(例如，主CG(Master CG，MCG)或者辅CG(Secondary CG，SCG)，也可以称为主节点(master node，MN)或辅节点(secondary node，SN))。PDCP将PDCP协议数据单元(Protocol Data Unit，PDU)复制为相同的两份，比如一个是PDCP PDU，一个是复制(Duplicated)PDCP PDU，两份PDCP PDU经过不同CG的无线链路控制(Radio Link Control，RLC)层以及媒体接入控制(Media Access Control，MAC)层，再经过空口到达终端设备(下行)或者基站(上行)相应的MAC以及RLC层，最后再汇聚到PDCP，PDCP层监测到两个PDCP为相同的复制版本，则可以丢弃其中一个，将另外一个递交到高层。
在本申请实施例中，两份PDCP PDU经过不同CG进行传输，能够达到频率分集增益的目的，进而能够提高数据传输的可靠性。
应理解，对于配置了复制传输的承载(例如，无线承载(Data Radio Bearer，DRB)或信令无线承载(Signaling Radio Bearers，SRB))，可以通过MAC控制单元(Control Element，CE)动态的激活(activate)或者去激活(de-activate)某一个承载的复制传输功能。
此外，在本申请实施例中，PDCP的低层用于传输复制数据的实体也可称为腿(leg或路径)，或者可以用逻辑信道(Logical Channel，LCH)替换，即RLC实体可以用leg或逻辑信道替换。相应的，RLC实体标识，可以替换为LCH标识或者leg标识。
在CA场景下的复制传输方式的协议架构可以如图2中的DRB 1或DRB3所示。复制传输方式采用的是CA的协议架构，具体地，在复制传输被激活的情况下，PDCP层生成的数据(PDU和PDU的复制数据)分别传输到两个不同的RLC实体，这两个不同的RLC实体通过相同的MAC层实体映射到不同的物理层载波。可以理解，在本申请实施例中，PDCP层所生成的数据(PDU和PDU的复制数据)分别通过两个不同的RLC实体映射到不同的物理层载波上，能够达到频率分集增益的目的，进而能够提高数据传输的可靠性。
在复制传输被去激活并且满足分裂(split)传输条件的情况下，终端设备也可以使用该承载对应的两个RLC实体传输分裂数据，即通过这两个RLC实体传输不同的数据。其中，该分裂传输条件可以为这两个RCL实体的待传输的PDCP数据量和RLC数据量大于或等于预设门限。
以上，是仅支持两个RLC实体的复制传输方式。在R16中，支持至少两个RLC实体的复制传输方式，具体地，在复制传输激活的情况下，可以采用CA架构，DC架构，或者DC和CA结合的架构，进行复制传输。同样的，PDCP层所生成的数据(PDU和PDU的复制数据)分别通过至少两个不同的RLC实体映射到低层进行传输，以达到频率分集增益的目的，进而能够提高数据传输的可靠性。
但是，当复制传输去激活的情况下，如何重新定义分裂传输条件，以及如何确定进行分裂传输的 RLC实体是一项亟需解决的问题。
图3为本申请实施例提供的一种无线通信的方法200的示意性流程图。该方法200可以由图1所示的通信系统中的终端设备执行，如图3所示，该方法200可以包括如下至少部分内容：
S210，在去激活第一承载的复制传输并且满足分裂传输条件的情况下，终端设备使用所述第一承载配置的至少两个无线链路控制RLC实体中的第一RLC实体和第二RLC实体进行分裂传输。
具体而言，对于DC场景下的复制传输或DC和CA结合场景下的复制传输，一个无线承载可以对应至少两个RLC实体，当第一承载的复制传输去激活时，所述终端设备可以在第一承载配置的至少两个RLC实体中确定目标RLC实体，进一步可以使用所述目标RLC实体进行分裂传输。
在本申请实施例中，所述终端设备可以接收网络设备对所述第一承载的配置信息，可选地，所述配置信息可以包括以下中的至少一项：
所述第一承载的标识；
至少两个RLC实体的标识，
该第一承载配置的至少一个小区组的标识，其中，该至少一个小区组配置中的每个小区组配置有至少一个RLC实体；
主RLC实体(primary RLC实体)或称主leg(primary leg)；
第一门限，例如，上行分裂数据门限(ul-DataSplitThreshold)和/或版本16(Rel-16)上行分裂数据门限(ul-DataSplitThreshold-r16)。
在本申请实施例中，所述目标RLC实体可以包括两个RLC实体，记为第一RLC实体和第二RLC实体，或者也可以包括更多个RLC实体，所述目标RLC实体可以用于传输分裂数据，即所述终端设备可以通过所述两个RLC实体或更多个RLC实体传输分裂数据中的不同的数据。
此外，所述目标RLC实体还可包括一个RLC实体，相应的，代表仅有一个RLC实体进行数据传输，也就是说，此时不支持分裂传输。此情况下，目标RLC实体可以是主RLC实体，主小区(Pcell)，主辅小区(Pscell)，特定标识的RLC实体，属于特定CG的一个RLC实体，任意一个RLC实体，或者所述第一RLC实体，所述第二RLC实体中的一个。可选地，可以通过网络指示，预定义，终端设备自行确定的方式，确定此场景下所使用的目标RLC实体。
需要说明的是，终端设备可以是否开启分裂传输，是可配置的。例如，终端设备可以根据网络设备的指示或配置，确定在去激活所述第一承载的复制传输时是否执行分裂传输，例如，若网络设备指示开启分裂传输，则所述终端设备可以在去激活所述第一承载的复制传输并且满足分裂传输条件的情况下，进行分裂传输；或者在网络设备指示关闭分裂传输时，即使在去激活所述第一承载的复制传输，并且满足分裂传输条件的情况下，所述终端设备也不进行分裂传输。
以下，以所述目标RLC实体包括第一RLC实体和第二RLC实体为例进行说明，但本申请实施例并不限于此。
在本申请实施例中，所述第一承载配置有至少两个RLC实体，例如，4个，所述至少两个RLC实体可以属于所述第一承载的至少一个小区组，也就是说，所述第一承载对应的至少一个小区组中的每个小区组配置有至少一个RLC实体。例如，MCG和SCG分别配置2个RLC实体，或者，MCG配置有1个RLC实体和SCG配置有2或3个RLC实体。
可选地，所述第一承载可以为DRB或SRB。
所述第一承载配置了复制传输功能，网络设备可以动态的激活(activate)或者去激活(de-activate)该第一承载的复制传输。例如，网络设备可以通过MAC CE激活或去激活该第一承载的复制传输。
在激活第一承载的复制传输的情况下，所述终端设备可以在所述第一承载配置的至少两个RLC实体中选择两个或更多个RLC实体用于进行复制传输。
在去激活所述第一承载的复制传输的情况下，所述终端设备可以根据所述第一承载对应的待传输数据量是否满足分裂传输条件，确定是否进行分裂传输，例如，若所述第一承载对应的待传输数据量满足分裂传输条件，则确定进行分裂传输，否则，确定进行正常的数据传输；或者，所述终端设备也可以根据网络设备的指示确定是否进行分裂传输，例如，若网络设备指示所述终端设备进行分裂传输，则确定进行分裂传输，否则，确定进行正常的数据传输。应理解，这里所指的正常的数据传输非分裂传输，也非复制传输，具体地，所述第一承载的一个数据包通过一个RLC实体进行传输。
可选地，在本申请一些实施例中，所述终端设备可以根据第一信息确定用于分裂传输的目标RLC实体，其中，所述第一信息可以用于指示在满足分裂传输条件时所使用的RLC实体。即所述终端设备可以根据网络设备的指示，确定分裂传输所使用的RLC实体，进一步可以使用网络设备指示的该RLC实体进行分裂传输。
在一些实施例中，所述第一信息用于指示至少两个可用(或者说，激活)的RLC实体，例如， 所述第一信息可以包括以下中的至少一项：RLC实体标识，逻辑信道LCH标识ID，小区组标识ID，RLC实体个数。
则在需要进行分裂传输时，所述终端设备可以在该第一信息所指示的至少两个可用的RLC实体中确定用于分裂传输的两个RLC实体。或者，在需要进行复制传输时，所述终端设备也可以在该第一信息所指示的至少两个可用的RLC实体中确定用于复制传输的RLC实体。
可选地，在一些实施例中，所述至少两个可用的RLC实体可以包括以下中的至少一种：所述第一承载的主RLC实体或称主leg(primary leg)，所述第一承载的MCG的主RLC实体，所述第一承载的SCG的主RLC实体。
应理解，在一些实施例中，所述第一承载的主RLC实体也可以为所述第一承载的MCG的主RLC实体，或者所述第一承载的SCG的主RLC实体，或者也可以为第一承载配置的RLC实体中的其他RLC实体。
可选地，在一些实施例中，所述第一信息可以是网络设备配置的，或者也可以是终端设备自行确定的，或者也可以是预定义的。
作为一个实施例，所述第一信息可以承载在第一信令中，所述第一信令可以为任一下行信令，例如，MAC CE，下行控制信息(Downlink Control Information，DCI)或无线资源控制(Radio Resource Control，RRC)信令等。
所述网络设备可以通过复制MAC CE(Duplicated MAC CE)激活或去激活所述第一承载的复制传输，在一些实施例中，用于承载所述第一信息的MAC CE非Duplicated MAC CE，即该MAC CE不用于执行激活或去激活第一承载的复制传输等相关操作。相应地，承载该第一信息的该MAC CE需要引入新的逻辑信道(Logical Channel，LCH)标识(Identify，ID)，用于标识该特定功能的MAC CE。
在一些实施例中，所述第一信令也可以包括第二信息，所述第二信息用于指示在不满足分裂传输条件时进行数据传输所使用的RLC实体。
则所述终端设备可以在去激活所述第一承载的复制传输，并且不满足分裂传输条件时，根据所述第二信息所指示的RLC实体确定进行正常数据传输的RLC实体，进一步可以使用该RLC实体进行正常的数据传输。
可选地，在一些实施例中，所述第二信息包括以下中的至少一项：
RLC实体标识，逻辑信道LCH标识ID，小区组标识ID。
作为另一实施例，所述第一信息可以承载在第一复制MAC CE(duplication MAC CE)中，所述第一复制MAC CE用于指示RLC实体的变更和/或所述第一承载的复制传输的激活或去激活。
可选地，所述RLC实体的变更可以指所述第一承载所配置的RLC实体的变更，例如，将第一承载配置的RLC实体由RLC实体1，RLC实体2和RLC实体3，变更为RLC实体1，RLC实体2和RLC实体4。又例如，将第一承载配置的RLC实体由RLC实体1，RLC实体2和RLC实体3，变更为RLC实体1和RLC实体2。
可选地，在一些实施例中，所述第一复制MAC CE还可以包括指示信息，所述指示信息用于指示所述终端设备的数据传输模式，所述数据传输模式可以包括以下中的至少两种：激活所述第一承载的复制传输，去激活所述第一承载的复制传输，分裂传输，或者也可以指示更多种数据传输模式，例如，非分裂传输，本申请实施例并不限于此。
可选地，在一些实施例中，所述第一复制MAC CE可以为支持版本16的复制MAC CE，即Rel-16duplication MAC CE，在该版本16中，支持一个承载配置至少两个RLC实体。
在一些实施例中，可以只通过所述第一复制MAC CE指示RLC实体的变更和所述第一承载的复制传输的激活或去激活，记为方式1；或者，在另一些实施例中，也可以通过多个复制MAC CE，例如，第一复制MAC CE和第二复制MAC CE指示RLC实体的变更和所述第一承载的复制传输的激活或去激活，其中，该第一复制MAC CE和第二复制MAC CE之间的功能分配不作限定。
作为示例而非限定，该第一复制MAC CE和所述第二复制MAC CE之间的功能分配可以为如下几种典型实现方式：
所述第一复制MAC CE用于指示RLC实体的变更，所述第二复制MAC CE用于指示所述第一承载的复制传输的激活或去激活，记为方式2；
所述第一复制MAC CE用于指示RLC实体的变更，所述第一承载的复制传输的激活和分裂传输，所述第二复制MAC CE用于指示所述第一承载的复制传输的去激活，记为方式3；
所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活或者去激活，所述第二复制MAC CE用于指示所述第一承载的复制传输的激活或者去激活，记为方式4；
所述第一复制MAC CE用于指示RLC实体的变更和所述第一承载的分裂传输，所述第二复制MAC CE用于指示所述第一承载的复制传输的激活或去激活，记为方式5；所述第一复制MAC CE用于指示RLC实体的变更，所述第二复制MAC CE用于指示所述第一承载的复制传输的激活或去激活，所述第一承载的分裂传输，记为方式6。
可选地，在一些实施例中，所述第二复制MAC CE可以为支持版本15的复制MAC CE，即Rel-15duplication MAC CE，在该版本15中，一个承载配置有两个RLC实体。
以下，结合上述六种方式，分别说明终端设备的数据传输模式以及该数据传输模式下所使用的RLC实体的确定方式。
对于方式1：
在此方式1中，该第一复制MAC CE可以包括指示信息，用于指示数据传输模式，即网络设备可以通过所述第一复制MAC CE配置终端设备的数据传输模式，所述终端设备可以根据所述指示信息和所述第一信息确定终端设备当前的数据传输模式以及该数据传输模式下所使用的RLC实体。
在一些实施例中，该指示信息可以指示激活所述第一承载的复制传输，去激活所述第一承载的复制传输和所述第一承载的分裂传输三种数据传输方式，作为示例1，所述指示信息可以为2比特，例如，可以采用00表示激活所述第一承载的复制传输，01表示去激活所述第一承载的复制传输，10表示split传输。
在另一些实施例中，该指示信息可以指示激活所述第一承载的复制传输和所述第一承载的分裂传输两种数据传输方式，作为示例2，该指示信息可以为1比特，例如，可以采用1表示激活所述第一承载的复制传输，0表示split传输。
以所述示例1为例，说明每种数据传输方式下所使用的RLC实体的确定方式。例如，所述指示信息为00，所述第一信息指示可用的RLC实体的标识为1和2，所述终端设备可以使用RLC实体1和RLC实体2进行duplication传输。又例如，所述指示信息为10，所述第一信息指示可用的RLC实体的标识为1和2，所述终端设备可以使用RLC实体1和RLC实体2进行split传输。再例如，所述指示信息为01，所述第一信息指示的可用的RLC实体为1，则所述终端设备可以使用RLC实体1和/或RLC实体2进行正常的数据传输，或者，若所述第一复制MAC CE包括第二信息，所述终端设备也可以根据所述第二信息确定进行正常的数据传输所使用的RLC实体。
在再一些实施例中，该指示信息可以指示激活所述第一承载的复制传输和去激活所述第一承载的复制传输两种数据传输方式，作为示例3，该指示信息可以为2比特，例如，可以采用00表示激活duplication，01表示去激活duplication，作为示例4，该指示信息可以为1比特，例如，可以采用1表示激活所述第一承载的复制传输，0表示去激活所述第一承载的复制传输。
以示例4为例，说明每种数据传输方式下所使用的RLC实体的确定方式。例如，所述指示信息为1，所述第一信息指示可用的RLC实体的标识为1和2，所述终端设备可以使用RLC实体1和RLC实体2进行duplication传输。又例如，所述指示信息为0，所述第一信息指示可用的RLC实体的标识为1和2，则所述终端设备可以在满足分裂传输条件时使用RLC实体1和RLC实体2进行split传输，或者，在不满足分裂传输条件时使用RLC实体1和/或和RLC实体2进行数据传输，或者使用主RLC实体进行数据传输，或者若所述第一复制MAC CE包括第二信息，也可以根据所述第二信息所指示的RLC实体进行数据传输。
对于方式2：
若终端设备接收到第二复制MAC CE，该第二复制MAC CE用于指示去激活第一承载的复制传输，之后又接收到第一复制MAC CE，该第一复制MA CE包括第一信息，所述第一信息用于指示至少两个可用的RLC实体(例如，RLC实体1和RLC实体2)。则在去激活第一承载的复制传输并且满足分裂传输条件时，所述终端设备可以在所述至少两个可用的RLC实体中确定用于分裂传输的RLC实体，例如，将RLC实体1和RLC实体2确定为进行分裂传输的RLC实体。或者在不满足分裂传输条件时，使用至少两个可用的RLC实体中的一个或多个RLC实体传输该第一承载的PDCP PDU，或者，使用该主RLC实体传输该第一承载的PDCP PDU，或者若所述第一复制MAC CE包括第二信息，所述终端设备也可以根据所述第二信息确定进行数据传输的RLC实体。
对于方式3：
在此方式3中，该第一复制MAC CE中可以包括指示信息，用于指示数据传输模式，所述数据传输模式可以为激活所述第一承载的复制传输和分裂传输，类似地，所述第二复制MAC CE也可以包括指示信息，用于指示去激活所述第一承载的复制传输。
为便于区分和说明，所述第一复制MAC CE中的指示信息记为第一指示信息，所述第二复制MAC CE中的指示信息记为第二指示信息。
作为一些实现方式，该第一指示信息可以为2比特，例如，可以采用00表示激活第一承载的复制传输，01表示split传输；或者，该第一指示信息为1比特，例如，可以采用1表示激活第一承载的复制传输，0表示split传输。则所述终端设备根据第一复制MAC CE中的所述指示信息的取值，确定当前的数据传输模式，进一步可以根据该第一复制MAC CE中的所述第一信息确定可使用(或者说，激活)的RLC实体。
作为一种实现方式，该第二指示信息可以为1比特，例如，可以采用0表示去激活第一承载的复制传输，1表示不切换所述终端设备的数据传输模式。
作为一个例子，终端设备接收到第二复制MAC CE，所述第二复制MAC CE用于指示去激活所述第一承载的复制传输，所述终端设备还接收到第一复制MAC CE，所述第一复制MAC CE用于指示至少两个可用的RLC实体(例如，RLC实体1和RLC实体2)。则在满足分裂传输条件时，所述终端设备可以在所述至少两个可用的RLC实体中确定用于分裂传输的RLC实体，例如，将RLC实体1和RLC实体2确定为进行分裂传输的RLC实体。或者，在不满足分裂传输条件时，使用至少两个可用的RLC实体中的一个或多个RLC实体传输该第一承载的PDCP PDU，或者，使用该主RLC实体传输该第一承载的PDCP PDU。
作为另一个例子，所述终端设备接收到第一复制MAC CE，所述第一复制MAC CE中的指示信息指示激活所述第一承载的复制传输，并且所述第一复制MAC CE中的第一信息指示至少两个可用的RLC实体(例如，RLC实体1和RLC实体2)。则所述终端设备可以在所述至少两个可用的RLC实体中确定用于复制传输的RLC实体，例如，将RLC实体1和RLC实体2确定为进行复制传输的RLC实体。
对于方式4：
所述第一复制MAC CE和所述第二复制MAC CE都可以用于指示第一承载的复制传输的激活和去激活状态，同时，所述第二复制MAC CE还可以用于指示至少一个RLC实体，用于特定数据传输模式下的数据传输。
具体地，所述终端设备接收到第一复制MAC CE，可以根据所述第一复制MAC CE的指示，变更所述第一承载的复制传输的激活状态或更换RLC实体。所述终端设备接收到第二复制MAC CE，则可以根据该第二复制MAC CE的指示，变更所述第一承载的复制传输的激活状态。
例如，所述终端设备接收到第二复制MAC CE，指示去激活第一承载的复制传输，则终端设备去激活第一承载的复制传输；或者，若第二复制MAC CE用于指示激活第一承载的复制传输，则终端设备可以通过初始配置的激活的RLC实体进行复制传输，其中，该初始配置用于配置激活第一承载的复制传输时所使用的RLC实体，该初始配置可以由RRC信令或MAC CE配置，或者，所述终端设备也可以使用最近一次所述第一承载上的激活的复制传输所使用的RLC实体进行复制传输，例如，若最近的一次复制传输是通过RLC实体1和RLC实体2传输的，则所述终端设备可以通过这两个RLC实体进行复制传输。
又例如，若所述终端设备接收到第一复制MAC CE，用于指示去激活第一承载的复制传输，则终端设备去激活第一承载的复制传输，或者，所述第一复制MAC CE用于指示激活第一承载的复制传输，则终端设备根据该第一复制MAC CE中的第一信息所指示的RLC实体进行复制传输。例如，若所述第一信息指示的RLC实体为RLC实体1和RLC实体2，则所述终端设备可以使用所述RLC实体1和RLC实体2进行复制传输。
在该方式4中，在第一复制MAC CE或第二复制MAC CE指示去激活所述第一承载的复制传输时，所述终端设备还可以根据所述第一复制MAC CE中的第一信息确定进行分裂传输的RLC实体，以及进行非分裂传输的RL实体。
例如，若所述第一信息指示的RLC实体为RLC实体1和RLC实体2，则在满足分裂传输条件时，所述终端设备可以使用RLC实体1和RLC实体2进行分裂传输，或者在不满足分裂传输条件时，所述终端设备可以使用RLC实体1和/或RLC实体2进行数据传输，或者若所述RLC实体1和RLC实体2中存在主RLC实体，则所述终端设备可以使用所述主RLC实体进行数据传输，或者若所述RLC实体1和RLC实体2中不存在主RLC实体，则所述终端设备也可以选择使用所述主RLC实体进行数据传输。或者，若所述第一复制MAC CE中包括第二信息，所述终端设备也可以根据所述第二信息确定进行非分裂传输的RL实体。
对于方式5：
对于数据传输模式的指示方式，这里不再赘述，可以参考前述几种方式中的相关描述，为了简洁，这里不再赘述。
作为一个例子，所述第一复制MAC CE可以包括第一信息，用于指示至少两个可用的RLC实体， 例如RLC实体1和RLC实体2，所述终端设备可以接收第二复制MAC CE，若所述第二复制MAC CE指示去激活所述第一承载的复制传输，则所述终端设备可以在满足分裂传输条件时，在所述第一信息所指示的至少两个可用的RLC实体中确定进行分裂传输的RLC实体，例如可以将所述RLC实体1和所述RLC实体2确定为进行分裂传输的RLC实体，或者，在所述第二复制MAC CE指示激活所述第一承载的复制传输时，使用所述所述RLC实体1和所述RLC实体2进行复制传输。
作为另一个例子，所述终端设备接收第一复制MAC CE，所述第一复制MAC CE用于指示所述第一承载的分裂传输，所述第一复制MAC CE还包括第一信息，用于指示至少两个可用的RLC实体，例如RLC实体1和RLC实体2，则所述终端设备可以在所述第一信息所指示的至少两个可用的RLC实体中确定进行分裂传输的RLC实体，例如可以将所述RLC实体1和所述RLC实体2确定为进行分裂传输的RLC实体。
对于方式6：
所述第一复制MAC CE用于指示RLC实体的变更，所述第二复制MAC CE用于指示所述第一承载的复制传输的激活或去激活，所述第一承载的分裂传输。
对于数据传输模式的指示方式，这里不再赘述，可以参考前述几种方式中的相关描述，为了简洁，这里不再赘述。
作为一个例子，所述终端设备可以接收第一复制MAC CE，所述第一复制MAC CE包括第一信息，所述第一信息用于指示至少两个可用的RLC实体，例如RLC实体1和RLC实体2，所述终端设备还可以接收第二复制MAC CE，以下说明所述第二复制MAC CE指示的三种数据传输模式下RLC实体的确定方式。
情况1：所述第二复制MAC CE用于指示激活所述第一承载的复制传输，则所述终端设备可以在所述至少两个可用的RLC实体中确定进行复制传输的RLC实体，例如，将所述RLC实体1和RLC实体2确定为进行复制传输的RLC实体，进一步使用该RLC实体1和RLC实体2传输复制数据；
情况2：所述第二复制MAC CE用于指示去激活所述第一承载的复制传输，则所述终端设备可以在满足分裂传输条件时，在所述至少两个可用的RLC实体中确定进行分裂传输的RLC实体，例如，将所述RLC实体1和RLC实体2确定为进行分裂传输的RLC实体，进一步使用该RLC实体1和RLC实体2传输分裂数据；或者在不满足分裂传输条件时，在所述至少两个可用的RLC实体中确定进行正常数据传输的RLC实体，例如，将所述RLC实体1和/或RLC实体2确定为进行正常的数据传输的RLC实体；
情况3：所述第二复制MAC CE用于指示所述第一承载的分裂传输，则所述终端设备可以在所述至少两个可用的RLC实体中确定进行分裂传输的RLC实体，例如，将所述RLC实体1和RLC实体2确定为进行分裂传输的RLC实体，进一步使用该RLC实体1和RLC实体2传输分裂数据。
结合图4和图5所示的例子，具体说明，其中，如图4和图5所示，所述第一承载为DRB1，配置有4个RLC实体，RLC实体1，RLC实体2，RLC实体3和RLC实体4。其中，图4所示的示例中，RLC实体1，RLC实体2和RLC实体3对应MAC实体a，该MAC实体a对应该MCG，MCG有三个成员载波(Component Carrier，CC)，分别为CC1，CC2和CC3，RLC实体4对应MAC实体b，对应SCG，有一个CC4；在图5所示的示例中，RLC实体1和RLC实体2对应MAC实体a，该MAC实体a对应MCG，MCG有两个CC，分别为CC1和CC2，RLC实体3和RLC实体4对应MAC实体b，对应SCG，SCG有两个CC，分别为CC3和CC4。
对于图4所示的示例，若所述第一信息指示RLC实体1，RLC实体2和RLC实体4，作为一个示例，所述终端设备可以在MCG对应的RLC实体1和RLC实体2中选择RLC实体1，以及在SCG对应的RLC实体中选择RLC实体4作为分裂传输的RLC实体。进一步地，该RLC实体1和RLC实体4可以通过对应的MAC实体将分裂数据映射到不同的CC，进一步传输到网络设备。
对于图5所示的示例，若所述第一信息指示RLC实体1，RLC实体2，RLC实体3和RLC实体4，作为一个示例，所述终端设备可以在MCG对应的RLC实体1和RLC实体2中选择RLC实体1，以及在SCG对应的RLC实体3和RLC实体4中选择RLC实体4作为分裂传输的RLC实体。进一步地，该RLC实体1和RLC实体4可以通过对应的MAC实体将分裂数据映射到不同的CC，进一步传输到网络设备。
因此，在本申请实施例中，在第一承载配置有至少两个RLC实体的情况下，所述终端设备可以根据第一信息确定进行分裂传输的RLC实体，能够解决在一个承载对应的RLC实体多于两个时，如何传输分裂数据的问题，同时也可以保证终端设备和网络设备的理解一致，以保证数据的正常接收。
应理解，在本申请实施例中，用于分裂传输的RLC实体可以是所述终端设备基于所述第一信息选择的，或者也可以是所述终端设备自主选择的，例如，所述终端设备优先在所述第一承载的primary  leg，所述第一承载的MCG的主RLC实体和所述第一承载的SCG的主RLC实体中选择两个RLC实体作为分裂传输的RLC实体。
可选地，在本申请实施例中，所述终端设备用于分裂传输的目标RLC实体可以包括以下任意两种RLC实体的组合：
所述第一承载的主RLC实体(primary leg)；
所述第一承载的主小区组MCG的主RLC实体；
所述第一承载的辅小区组SCG的主RLC实体；
所述第一承载的主小区组MCG的辅RLC实体；
所述第一承载的辅小区组SCG的辅RLC实体。
优选地，在一些实施例中，所述目标RLC实体可以以下组合中的一种：
所述第一承载的主RLC实体和所述第一承载的主小区组MCG的主RLC实体，其中，二者为不同的RLC实体；
所述第一承载的主RLC实体和所述第一承载的辅小区组SCG的主RLC实体，其中，二者为不同的RLC实体；
所述第一承载的主小区组MCG的主RLC实体和所述第一承载的辅小区组SCG的主RLC实体。
因此，在本申请实施例中，在一个承载配置有至少两个RLC实体的情况下，所述终端设备优先在所述第一承载的primary leg，所述第一承载的MCG的主RLC实体和所述第一承载的SCG的主RLC实体中选择用于分裂传输的RLC实体，有利于保证数据的可靠传输。
在本申请另一些实施例中，在去激活所述第一承载的复制传输并且不满足所述分裂传输条件的情况下，所述终端设备也可以选择第三RLC实体用于数据传输，其中，该第三RLC实体可以是根据所述第一信息确定的，例如，在所述第一信息所指示的RLC实体中确定一个或多个RLC实体，或者也可以是根据所述第二信息确定的，或者也可以是所述终端设备自主选择的，例如，所述终端设备可以优先在所述第一承载的primary leg，所述第一承载的MCG的主RLC实体和所述第一承载的SCG的主RLC实体中选择一个或多个RLC实体进行数据传输。
可选地，在一些实施例中，所述第三RLC实体包括以下中的至少一种：
所述第一承载的主RLC实体；
所述第一承载的主小区组MCG的主RLC实体；
所述第一承载的辅小区组SCG的主RLC实体；
所述第一承载的任意一个RLC实体；
所述第一承载的特定LCH标识的RLC实体。
在本申请一些实施例中，所述分裂传输条件可以为所述第一承载对应的待传输数据量大于或等于第一门限。
作为一些示例，所述第一承载对应的待传输的数据量为以下中的一种：
1、所述第一承载配置的所有的RLC实体中，等待初始传输的分组数据汇聚协议PDCP数据量和RLC数据量的总大小，即所述第一配置的至少两个RLC实体中等待传传输的PDCP数据量和RLC数据量的总量；
2、所述第一承载配置的并且激活的RLC实体中，等待初始传输的PDCP数据量和RLC数据量的总大小，例如，若所述第一承载配置有RLC实体1，RLC实体2和RLC实体4，当前激活的RLC实体为RLC实体1和RLC实体2，则所述第一承载对应的待传输数据量为RLC实体1和RLC实体2等待初始传输的PDCP数据量和RLC数据量的总大小；
3、所述第一承载配置的并且被激活过的RLC实体中，等待初始传输的PDCP数据量和RLC数据量的总大小，例如，若所述第一承载配置有RLC实体1，RLC实体2，RLC实体3和RLC实体4，第一次复制传输激活的RLC实体为RLC实体1和RLC实体2，第二次复制传输激活的RLC实体为RLC实体1和RLC实体3，则所述第一承载配置的并且激活过的RLC实体包括RLC实体1，RLC实体2和RLC实体3，则所述第一承载对应的待传输数据量为RLC实体1，RLC实体2和RLC实体3中等待初始传输的PDCP数据量和RLC数据量的总大小；
4、所述第一承载配置的被激活过的并且有待传输数据的RLC实体中，等待初始传输的PDCP数据量和RLC数据量的总大小，例如，若所述第一承载配置有RLC实体1，RLC实体2，RLC实体3和RLC实体4，所述第一承载配置的并且激活过的RLC实体包括RLC实体1，RLC实体2和RLC实体3，所述RLC实体1，RLC实体2和RLC实体3中有待传输数据的RLC实体包括RLC实体1和RLC实体3，则所述第一承载对应的待传输数据量为RLC实体1和RLC实体3中等待初始传输的PDCP数据量和RLC数据量的总大小；
5、所述第一承载配置的被激活过的并且有初传数据的RLC实体中，等待初始传输的PDCP数据量和RLC数据量的总大小，例如，若所述第一承载配置有RLC实体1，RLC实体2，RLC实体3和RLC实体4，所述第一承载配置的并且激活过的RLC实体包括RLC实体1，RLC实体2和RLC实体3，所述RLC实体1，RLC实体2和RLC实体3中有初传数据的RLC实体包括RLC实体1和RLC实体3，则所述第一承载对应的待传输数据量为RLC实体1和RLC实体3中等待初始传输的PDCP数据量和RLC数据量的总大小；
6、所述第一RLC实体和所述第二RLC实体中等待初始传输的PDCP数据量和RLC数据量的总大小，即进行分裂传输的RLC实体中等待初次传输的PDCP数据量和RLC数据量的总量。
在第一承载配置有至少两个RLC实体的情况下，所述终端设备可以重新定义分裂传输条件时，能够充分考虑可能有待传输数据的RLC实体上的待传输数据量，有利于保证有待传输数据的RLC实体上的数据都能够被传输。
上文结合图3至图5，从终端设备的角度详细描述了根据本申请实施例的无线通信的方法，下文结合图6，从网络设备的角度详细描述根据本申请另一实施例的无线通信的方法。应理解，网络设备侧的描述与终端设备侧的描述相互对应，相似的描述可以参见上文，为避免重复，此处不再赘述。
图6是根据本申请再一实施例的无线通信的方法400的示意性流程图，该方法400可以由图1所示的通信系统中的网络设备执行，如图6所示，该方法400包括如下内容：
S410，网络设备向终端设备发送第一信息，所述第一信息用于指示去激活承载的复制传输并且满足分裂传输条件时所使用的RLC实体。
可选地，在一些实施例中，所述第一信息承载于第一信令中，所述第一信令为以下信令中的至少一种：
媒体接入控制MAC控制单元CE，下行控制信息DCI和无线资源控制RRC信令。
可选地，在一些实施例中，所述第一信息包括以下中的至少一种：
RLC实体标识，逻辑信道LCH标识，小区组标识，RLC实体个数。
可选地，在一些实施例中，所述第一信令还包括第二信息，所述第二信息用于指示不满足分裂传输条件时进行数据传输所使用的RLC实体。
可选地，在一些实施例中，所述第二信息包括以下中的至少一项：
RLC实体标识，逻辑信道LCH标识，小区组标识。
可选地，在一些实施例中，所述MAC CE非复制MAC CE，所述MAC CE对应特定的逻辑信道LCH标识。
可选地，在一些实施例中，所述第一信息承载在第一复制MAC CE中，所述第一复制MAC CE用于指示RLC实体的变更和/或所述第一承载的复制传输的激活或去激活。
可选地，在一些实施例中，所述第一复制MAC CE还包括指示信息，所述指示信息用于指示数据传输模式，所述数据传输模式包括以下中的至少两种：
激活所述第一承载的复制传输，去激活所述第一承载的复制传输，分裂传输。
可选地，在一些实施例中，所述第一复制MAC CE用于指示RLC实体的变更，第二复制MAC CE用于指示所述第一承载的复制传输的激活或去激活；或者
所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活或去激活；或者
所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活，第二复制MAC CE用于指示所述第一承载的复制传输的去激活；或者
所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活或者去激活，第二复制MAC CE用于指示所述第一承载的复制传输的激活或者去激活。
可选地，在一些实施例中，所述第一复制MAC CE为版本16复制MAC CE，所述第二复制MAC CE为版本15复制MAC CE。
上文结合图3至图6，详细描述了本申请的方法实施例，下文结合图7至图11，详细描述本申请的装置实施例，应理解，装置实施例与方法实施例相互对应，类似的描述可以参照方法实施例。
图7示出了根据本申请实施例的终端设备500的示意性框图。如图7所示，该终端设备500包括：
通信模块510，用于在去激活第一承载的复制传输并且满足分裂传输条件的情况下，使用所述第一承载配置的至少两个无线链路控制RLC实体中第一RLC实体和第二RLC实体进行分裂传输。
可选地，所述终端设备还包括：
确定模块，用于在所述第一承载配置的所述至少两个RLC实体中确定用于分裂传输的所述第一RLC实体和所述第二RLC实体。
可选地，所述确定模块具体用于：
根据第一信息确定用于分裂传输的所述第一RLC实体和所述第二RLC实体，其中，所述第一信息用于指示满足分裂传输条件时所使用的RLC实体。
可选地，所述第一信息承载于第一信令中，所述第一信令为以下信令中的至少一种：
媒体接入控制MAC控制单元CE，下行控制信息DCI和无线资源控制RRC信令。
可选地，所述第一信息包括以下中的至少一种：
RLC实体标识，逻辑信道LCH标识，小区组标识，RLC实体个数。
可选地，所述第一信令还包括第二信息，所述第二信息用于指示不满足分裂传输条件时进行数据传输所使用的RLC实体。
可选地，所述第二信息包括以下中的至少一项：
RLC实体标识，逻辑信道LCH标识，小区组标识。
可选地，所述MAC CE非复制MAC CE，所述MAC CE对应特定的逻辑信道LCH标识。
可选地，所述第一信息承载在第一复制MAC CE中，所述第一复制MAC CE用于指示RLC实体的变更和/或所述第一承载的复制传输的激活或去激活。
可选地，所述第一信息用于指示至少两个可用的RLC实体，所述确定模块具体用于：
在所述至少两个可用的RLC实体中确定用于分裂传输的所述第一RLC实体和所述第二RLC实体。
可选地，所述第一复制MAC CE还包括指示信息，所述指示信息用于指示数据传输模式，所述数据传输模式包括以下中的至少两种：
激活所述第一承载的复制传输，去激活所述第一承载的复制传输，分裂传输。
可选地，所述确定模块还用于：
在激活所述第一承载的复制传输的情况下，在所述第一信息所指示的至少两个可用的RLC实体中确定进行复制传输的RLC实体；或
在去激活所述第一承载的复制传输并且不满足分裂传输条件的情况下，在所述第一信息所指示的至少两个可用的RLC实体中确定进行数据传输的RLC实体。
可选地，所述第一复制MAC CE用于指示RLC实体的变更，第二复制MAC CE用于指示所述第一承载的复制传输的激活或去激活；或者
所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活或去激活；或者
所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活，第二复制MAC CE用于指示所述第一承载的复制传输的去激活；或者
所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活或者去激活，第二复制MAC CE用于指示所述第一承载的复制传输的激活或者去激活。
可选地，所述第一复制MAC CE为版本16复制MAC CE，所述第二复制MAC CE为版本15复制MAC CE。
可选地，所述第一RLC实体所述第二RLC实体为以下任意两种的组合：
所述第一承载的主RLC实体；
所述第一承载的主小区组MCG的主RLC实体；
所述第一承载的辅小区组SCG的主RLC实体；
所述第一承载的主小区组MCG的辅RLC实体；
所述第一承载的辅小区组SCG的辅RLC实体。
可选地，所述通信模块510还用于：
在去激活第一承载的复制传输并且不满足分裂传输条件的情况下，使用第三RLC实体进行数据传输。
可选地，所述第三RLC实体包括以下中的至少一种：
所述第一承载的主RLC实体；
所述第一承载的主小区组MCG的主RLC实体；
所述第一承载的辅小区组SCG的主RLC实体；
所述第一承载的任意一个RLC实体；
所述第一承载的特定LCH标识的RLC实体。
可选地，所述分裂传输条件包括所述第一承载对应的待传输数据量大于第一门限。
可选地，所述第一承载对应的待传输的数据量为以下中的一种：
所述第一承载配置的所有的RLC实体中，等待初始传输的分组数据汇聚协议PDCP数据量和RLC数据量的总大小；
所述第一承载配置的并且激活的RLC实体中，等待初始传输的PDCP数据量和RLC数据量的总大小；
所述第一承载配置的并且被激活过的RLC实体中，等待初始传输的PDCP数据量和RLC数据量的总大小；
所述第一承载配置的被激活过的并且有待传输数据的RCL实体中，等待初始传输的PDCP数据量和RLC数据量的总大小；
所述第一承载配置的被激活过的并且有初传数据的RLC实体中，等待初始传输的PDCP数据量和RLC数据量的总大小；
所述第一RLC实体和所述第二RLC实体中等待初始传输的PDCP数据量和RLC数据量的总大小。
可选地，在一些实施例中，上述通信模块可以是通信接口或收发器，或者是通信芯片或者片上系统的输入输出接口。上述确定模块可以是一个或多个处理器。
应理解，根据本申请实施例的终端设备500可对应于本申请方法实施例中的终端设备，并且终端设备500中的各个单元的上述和其它操作和/或功能分别为了实现图3所示方法200中终端设备的相应流程，为了简洁，在此不再赘述。
图8是根据本申请实施例的网络设备的示意性框图。图8所示的网络设备700包括：
通信模块710，用于向终端设备发送第一信息，所述第一信息用于指示去激活承载的复制传输并且满足分裂传输条件时所使用的RLC实体。
可选地，所述第一信息承载于第一信令中，所述第一信令为以下信令中的至少一种：
媒体接入控制MAC控制单元CE，下行控制信息DCI和无线资源控制RRC信令。
可选地，所述第一信息包括以下中的至少一种：
RLC实体标识，逻辑信道LCH标识，小区组标识，RLC实体个数。
可选地，所述第一信令还包括第二信息，所述第二信息用于指示不满足分裂传输条件时进行数据传输所使用的RLC实体。
可选地，所述第二信息包括以下中的至少一项：
RLC实体标识，逻辑信道LCH标识，小区组标识。
可选地，所述MAC CE非复制MAC CE，所述MAC CE对应特定的逻辑信道LCH标识。
可选地，所述第一信息承载在第一复制MAC CE中，所述第一复制MAC CE用于指示RLC实体的变更和/或所述第一承载的复制传输的激活或去激活。
可选地，所述第一复制MAC CE还包括指示信息，所述指示信息用于指示数据传输模式，所述数据传输模式包括以下中的至少两种：
激活所述第一承载的复制传输，去激活所述第一承载的复制传输，分裂传输。
可选地，所述第一复制MAC CE用于指示RLC实体的变更，第二复制MAC CE用于指示所述第一承载的复制传输的激活或去激活；或者
所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活或去激活；或者
所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活，第二复制MAC CE用于指示所述第一承载的复制传输的去激活；或者
所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活或者去激活，第二复制MAC CE用于指示所述第一承载的复制传输的激活或者去激活。
可选地，所述第一复制MAC CE为版本16复制MAC CE，所述第二复制MAC CE为版本15复制MAC CE。
可选地，在一些实施例中，上述通信模块可以是通信接口或收发器，或者是通信芯片或者片上系统的输入输出接口。
应理解，根据本申请实施例的网络设备700可对应于本申请方法实施例中的终端设备，并且网络设备700中的各个单元的上述和其它操作和/或功能分别为了实现图6所示方法400中网络设备的相应流程，为了简洁，在此不再赘述。
图9是本申请实施例提供的一种通信设备1100示意性结构图。图9所示的通信设备1100包括处理器1110，处理器1110可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图9所示，通信设备1100还可以包括存储器1120。其中，处理器1110可以从存储 器1120中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器1120可以是独立于处理器1110的一个单独的器件，也可以集成在处理器1110中。
可选地，如图9所示，通信设备1100还可以包括收发器1130，处理器1110可以控制该收发器1130与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。
其中，收发器1130可以包括发射机和接收机。收发器1130还可以进一步包括天线，天线的数量可以为一个或多个。
可选地，该通信设备1100具体可为本申请实施例的网络设备，并且该通信设备1100可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该通信设备1100具体可为本申请实施例的移动终端/终端设备，并且该通信设备1100可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
图10是本申请实施例的芯片的示意性结构图。图10所示的芯片1200包括处理器1210，处理器1210可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图10所示，芯片1200还可以包括存储器1220。其中，处理器1210可以从存储器1220中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器1220可以是独立于处理器1210的一个单独的器件，也可以集成在处理器1210中。
可选地，该芯片1200还可以包括输入接口1230。其中，处理器1210可以控制该输入接口1230与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。
可选地，该芯片1200还可以包括输出接口1240。其中，处理器1210可以控制该输出接口1240与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。
可选地，该芯片可应用于本申请实施例中的网络设备，并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该芯片可应用于本申请实施例中的移动终端/终端设备，并且该芯片可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
图11是本申请实施例提供的一种通信系统900的示意性框图。如图11所示，该通信系统900包括终端设备910和网络设备920。
其中，该终端设备910可以用于实现上述方法中由终端设备实现的相应的功能，以及该网络设备920可以用于实现上述方法中由网络设备实现的相应的功能为了简洁，在此不再赘述。
应理解，本申请实施例的处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解，上述存储器为示例性但不是限制性说明，例如，本申请实施例中的存储器还可以是静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch link DRAM，SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)等等。也就是说，本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。
可选的，该计算机可读存储介质可应用于本申请实施例中的网络设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序产品，包括计算机程序指令。
可选的，该计算机程序产品可应用于本申请实施例中的网络设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序产品可应用于本申请实施例中的移动终端/终端设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的，该计算机程序可应用于本申请实施例中的网络设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序可应用于本申请实施例中的移动终端/终端设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (68)

  1. 一种无线通信的方法，其特征在于，包括：
    在去激活第一承载的复制传输并且满足分裂传输条件的情况下，终端设备使用所述第一承载配置的至少两个无线链路控制RLC实体中的第一RLC实体和第二RLC实体进行分裂传输。
  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：
    所述终端设备在所述第一承载配置的所述至少两个RLC实体中确定用于分裂传输的所述第一RLC实体和所述第二RLC实体。
  3. 根据权利要求2所述的方法，其特征在于，所述终端设备在所述第一承载配置的所述至少两个RLC实体中确定用于分裂传输的所述第一RLC实体和所述第二RLC实体，包括：
    所述终端设备根据第一信息确定用于分裂传输的所述第一RLC实体和所述第二RLC实体，其中，所述第一信息用于指示满足分裂传输条件时所使用的RLC实体。
  4. 根据权利要求3所述的方法，其特征在于，所述第一信息承载于第一信令中，所述第一信令为以下信令中的至少一种：
    媒体接入控制MAC控制单元CE，下行控制信息DCI和无线资源控制RRC信令。
  5. 根据权利要求4所述的方法，其特征在于，所述第一信息包括以下中的至少一种：
    RLC实体标识，逻辑信道LCH标识，小区组标识，RLC实体个数。
  6. 根据权利要求4或5所述的方法，其特征在于，所述第一信令还包括第二信息，所述第二信息用于指示不满足分裂传输条件时进行数据传输所使用的RLC实体。
  7. 根据权利要求6所述的方法，其特征在于，所述第二信息包括以下中的至少一项：
    RLC实体标识，逻辑信道LCH标识，小区组标识。
  8. 根据权利要求4至7中任一项所述的方法，其特征在于，所述MAC CE非复制MAC CE，所述MAC CE对应特定的逻辑信道LCH标识。
  9. 根据权利要求3至7中任一项所述的方法，其特征在于，所述第一信息承载在第一复制MAC CE中，所述第一复制MAC CE用于指示RLC实体的变更和/或所述第一承载的复制传输的激活或去激活。
  10. 根据权利要求9所述的方法，其特征在于，所述第一信息用于指示至少两个可用的RLC实体，所述终端设备在所述第一承载配置的所述至少两个RLC实体中确定用于分裂传输的所述第一RLC实体和所述第二RLC实体，包括：
    所述终端设备在所述至少两个可用的RLC实体中确定用于分裂传输的所述第一RLC实体和所述第二RLC实体。
  11. 根据权利要求10所述的方法，其特征在于，所述第一复制MAC CE还包括指示信息，所述指示信息用于指示数据传输模式，所述数据传输模式包括以下中的至少两种：
    激活所述第一承载的复制传输，去激活所述第一承载的复制传输，分裂传输。
  12. 根据权利要求10或11所述的方法，其特征在于，所述方法还包括：
    在激活所述第一承载的复制传输的情况下，在所述第一信息所指示的至少两个可用的RLC实体中确定进行复制传输的RLC实体；或
    在去激活所述第一承载的复制传输并且不满足分裂传输条件的情况下，在所述第一信息所指示的至少两个可用的RLC实体中确定进行数据传输的RLC实体。
  13. 根据权利要求9至12中任一项所述的方法，其特征在于，所述第一复制MAC CE用于指示RLC实体的变更，第二复制MAC CE用于指示所述第一承载的复制传输的激活或去激活；或者
    所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活或去激活；或者
    所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活，第二复制MAC CE用于指示所述第一承载的复制传输的去激活；或者
    所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活或者去激活，第二复制MAC CE用于指示所述第一承载的复制传输的激活或者去激活。
  14. 根据权利要求13所述的方法，其特征在于，所述第一复制MAC CE为版本16复制MAC CE，所述第二复制MAC CE为版本15复制MAC CE。
  15. 根据权利要求1至14中任一项所述的方法，其特征在于，所述第一RLC实体所述第二RLC实体为以下任意两种的组合：
    所述第一承载的主RLC实体；
    所述第一承载的主小区组MCG的主RLC实体；
    所述第一承载的辅小区组SCG的主RLC实体；
    所述第一承载的主小区组MCG的辅RLC实体；
    所述第一承载的辅小区组SCG的辅RLC实体。
  16. 根据权利要求1至15中任一项所述的方法，其特征在于，所述方法还包括：
    在去激活第一承载的复制传输并且不满足分裂传输条件的情况下，所述终端设备使用第三RLC实体进行数据传输。
  17. 根据权利要求16所述的方法，其特征在于，所述第三RLC实体包括以下中的至少一种：
    所述第一承载的主RLC实体；
    所述第一承载的主小区组MCG的主RLC实体；
    所述第一承载的辅小区组SCG的主RLC实体；
    所述第一承载的任意一个RLC实体；
    所述第一承载的特定LCH标识的RLC实体。
  18. 根据权利要求1至17中任一项所述的方法，其特征在于，所述分裂传输条件包括所述第一承载对应的待传输数据量大于第一门限。
  19. 根据权利要求18所述的方法，其特征在于，所述第一承载对应的待传输的数据量为以下中的一种：
    所述第一承载配置的所有的RLC实体中，等待初始传输的分组数据汇聚协议PDCP数据量和RLC数据量的总大小；
    所述第一承载配置的并且激活的RLC实体中，等待初始传输的PDCP数据量和RLC数据量的总大小；
    所述第一承载配置的并且被激活过的RLC实体中，等待初始传输的PDCP数据量和RLC数据量的总大小；
    所述第一承载配置的被激活过的并且有待传输数据的RCL实体中，等待初始传输的PDCP数据量和RLC数据量的总大小；
    所述第一承载配置的被激活过的并且初传数据的RLC实体中，等待初始传输的PDCP数据量和RLC数据量的总大小；
    所述第一RLC实体和所述第二RLC实体中等待初始传输的PDCP数据量和RLC数据量的总大小。
  20. 一种无线通信的方法，其特征在于，包括：
    网络设备向终端设备发送第一信息，所述第一信息用于指示去激活承载的复制传输并且满足分裂传输条件时所使用的RLC实体。
  21. 根据权利要求20所述的方法，其特征在于，所述第一信息承载于第一信令中，所述第一信令为以下信令中的至少一种：
    媒体接入控制MAC控制单元CE，下行控制信息DCI和无线资源控制RRC信令。
  22. 根据权利要求21所述的方法，其特征在于，所述第一信息包括以下中的至少一种：
    RLC实体标识，逻辑信道LCH标识，小区组标识，RLC实体个数。
  23. 根据权利要求21或22所述的方法，其特征在于，所述第一信令还包括第二信息，所述第二信息用于指示不满足分裂传输条件时进行数据传输所使用的RLC实体。
  24. 根据权利要求23所述的方法，其特征在于，所述第二信息包括以下中的至少一项：
    RLC实体标识，逻辑信道LCH标识，小区组标识。
  25. 根据权利要求21至24中任一项所述的方法，其特征在于，所述MAC CE非复制MAC CE，所述MAC CE对应特定的逻辑信道LCH标识。
  26. 根据权利要求21至24中任一项所述的方法，其特征在于，所述第一信息承载在第一复制MAC CE中，所述第一复制MAC CE用于指示RLC实体的变更和/或所述第一承载的复制传输的激活或去激活。
  27. 根据权利要求26所述的方法，其特征在于，所述第一复制MAC CE还包括指示信息，所述指示信息用于指示数据传输模式，所述数据传输模式包括以下中的至少两种：
    激活所述第一承载的复制传输，去激活所述第一承载的复制传输，分裂传输。
  28. 根据权利要求26或27所述的方法，其特征在于，所述第一复制MAC CE用于指示RLC实体的变更，第二复制MAC CE用于指示所述第一承载的复制传输的激活或去激活；或者
    所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活或去激活；或者
    所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活，第二复制MAC CE用于指示所述第一承载的复制传输的去激活；或者
    所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活或者去激活，第二复制MAC CE用于指示所述第一承载的复制传输的激活或者去激活。
  29. 根据权利要求28所述的方法，其特征在于，所述第一复制MAC CE为版本16复制MAC CE，所述第二复制MAC CE为版本15复制MAC CE。
  30. 一种终端设备，其特征在于，包括：
    通信模块，用于在去激活第一承载的复制传输并且满足分裂传输条件的情况下，使用所述第一承载配置的至少两个无线链路控制RLC实体中第一RLC实体和第二RLC实体进行分裂传输。
  31. 根据权利要求30所述的终端设备，其特征在于，所述终端设备还包括：
    确定模块，用于在所述第一承载配置的所述至少两个RLC实体中确定用于分裂传输的所述第一RLC实体和所述第二RLC实体。
  32. 根据权利要求31所述的终端设备，其特征在于，所述确定模块具体用于：
    根据第一信息确定用于分裂传输的所述第一RLC实体和所述第二RLC实体，其中，所述第一信息用于指示满足分裂传输条件时所使用的RLC实体。
  33. 根据权利要求32所述的终端设备，其特征在于，所述第一信息承载于第一信令中，所述第一信令为以下信令中的至少一种：
    媒体接入控制MAC控制单元CE，下行控制信息DCI和无线资源控制RRC信令。
  34. 根据权利要求33所述的终端设备，其特征在于，所述第一信息包括以下中的至少一种：
    RLC实体标识，逻辑信道LCH标识，小区组标识，RLC实体个数。
  35. 根据权利要求33或34所述的终端设备，其特征在于，所述第一信令还包括第二信息，所述第二信息用于指示不满足分裂传输条件时进行数据传输所使用的RLC实体。
  36. 根据权利要求35所述的终端设备，其特征在于，所述第二信息包括以下中的至少一项：
    RLC实体标识，逻辑信道LCH标识，小区组标识。
  37. 根据权利要求33至36中任一项所述的终端设备，其特征在于，所述MAC CE非复制MAC CE，所述MAC CE对应特定的逻辑信道LCH标识。
  38. 根据权利要求32至36中任一项所述的终端设备，其特征在于，所述第一信息承载在第一复制MAC CE中，所述第一复制MAC CE用于指示RLC实体的变更和/或所述第一承载的复制传输的激活或去激活。
  39. 根据权利要求38所述的终端设备，其特征在于，所述第一信息用于指示至少两个可用的RLC实体，所述确定模块具体用于：
    在所述至少两个可用的RLC实体中确定用于分裂传输的所述第一RLC实体和所述第二RLC实体。
  40. 根据权利要求39所述的终端设备，其特征在于，所述第一复制MAC CE还包括指示信息，所述指示信息用于指示数据传输模式，所述数据传输模式包括以下中的至少两种：
    激活所述第一承载的复制传输，去激活所述第一承载的复制传输，分裂传输。
  41. 根据权利要求39或40所述的终端设备，其特征在于，所述确定模块还用于：
    在激活所述第一承载的复制传输的情况下，在所述第一信息所指示的至少两个可用的RLC实体中确定进行复制传输的RLC实体；或
    在去激活所述第一承载的复制传输并且不满足分裂传输条件的情况下，在所述第一信息所指示的至少两个可用的RLC实体中确定进行数据传输的RLC实体。
  42. 根据权利要求38至41中任一项所述的终端设备，其特征在于，所述第一复制MAC CE用于指示RLC实体的变更，第二复制MAC CE用于指示所述第一承载的复制传输的激活或去激活；或者
    所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活或去激活；或者
    所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活，第二复制MAC CE用于指示所述第一承载的复制传输的去激活；或者
    所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活或者去激活，第二复制MAC CE用于指示所述第一承载的复制传输的激活或者去激活。
  43. 根据权利要求42所述的终端设备，其特征在于，所述第一复制MAC CE为版本16复制MAC CE，所述第二复制MAC CE为版本15复制MAC CE。
  44. 根据权利要求30至43中任一项所述的终端设备，其特征在于，所述第一RLC实体所述第二RLC实体为以下任意两种的组合：
    所述第一承载的主RLC实体；
    所述第一承载的主小区组MCG的主RLC实体；
    所述第一承载的辅小区组SCG的主RLC实体；
    所述第一承载的主小区组MCG的辅RLC实体；
    所述第一承载的辅小区组SCG的辅RLC实体。
  45. 根据权利要求30至44中任一项所述的终端设备，其特征在于，所述通信模块还用于：
    在去激活第一承载的复制传输并且不满足分裂传输条件的情况下，使用第三RLC实体进行数据传输。
  46. 根据权利要求45所述的终端设备，其特征在于，所述第三RLC实体包括以下中的至少一种：
    所述第一承载的主RLC实体；
    所述第一承载的主小区组MCG的主RLC实体；
    所述第一承载的辅小区组SCG的主RLC实体；
    所述第一承载的任意一个RLC实体；
    所述第一承载的特定LCH标识的RLC实体。
  47. 根据权利要求30至46中任一项所述的终端设备，其特征在于，所述分裂传输条件包括所述第一承载对应的待传输数据量大于第一门限。
  48. 根据权利要求47所述的终端设备，其特征在于，所述第一承载对应的待传输的数据量为以下中的一种：
    所述第一承载配置的所有的RLC实体中，等待初始传输的分组数据汇聚协议PDCP数据量和RLC数据量的总大小；
    所述第一承载配置的并且激活的RLC实体中，等待初始传输的PDCP数据量和RLC数据量的总大小；
    所述第一承载配置的并且被激活过的RLC实体中，等待初始传输的PDCP数据量和RLC数据量的总大小；
    所述第一承载配置的被激活过的并且有待传输数据的RCL实体中，等待初始传输的PDCP数据量和RLC数据量的总大小；
    所述第一承载配置的被激活过的并且初传数据的RLC实体中，等待初始传输的PDCP数据量和RLC数据量的总大小；
    所述第一RLC实体和所述第二RLC实体中等待初始传输的PDCP数据量和RLC数据量的总大小。
  49. 一种网络设备，其特征在于，包括：
    通信模块，用于向终端设备发送第一信息，所述第一信息用于指示去激活承载的复制传输并且满足分裂传输条件时所使用的RLC实体。
  50. 根据权利要求49所述的网络设备，其特征在于，所述第一信息承载于第一信令中，所述第一信令为以下信令中的至少一种：
    媒体接入控制MAC控制单元CE，下行控制信息DCI和无线资源控制RRC信令。
  51. 根据权利要求50所述的网络设备，其特征在于，所述第一信息包括以下中的至少一种：
    RLC实体标识，逻辑信道LCH标识，小区组标识，RLC实体个数。
  52. 根据权利要求50或51所述的网络设备，其特征在于，所述第一信令还包括第二信息，所述第二信息用于指示不满足分裂传输条件时进行数据传输所使用的RLC实体。
  53. 根据权利要求52所述的网络设备，其特征在于，所述第二信息包括以下中的至少一项：
    RLC实体标识，逻辑信道LCH标识，小区组标识。
  54. 根据权利要求50至53中任一项所述的网络设备，其特征在于，所述MAC CE非复制MAC CE，所述MAC CE对应特定的逻辑信道LCH标识。
  55. 根据权利要求50至53中任一项所述的网络设备，其特征在于，所述第一信息承载在第一复制MAC CE中，所述第一复制MAC CE用于指示RLC实体的变更和/或所述第一承载的复制传输的激活或去激活。
  56. 根据权利要求55所述的网络设备，其特征在于，所述第一复制MAC CE还包括指示信息，所述指示信息用于指示数据传输模式，所述数据传输模式包括以下中的至少两种：
    激活所述第一承载的复制传输，去激活所述第一承载的复制传输，分裂传输。
  57. 根据权利要求55或56所述的网络设备，其特征在于，所述第一复制MAC CE用于指示RLC实体的变更，第二复制MAC CE用于指示所述第一承载的复制传输的激活或去激活；或者
    所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活或去激活；或者
    所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活，第二复制MAC CE用于指示所述第一承载的复制传输的去激活；或者
    所述第一复制MAC CE用于指示RLC实体的变更以及所述第一承载的复制传输的激活或者去激活，第二复制MAC CE用于指示所述第一承载的复制传输的激活或者去激活。
  58. 根据权利要求57所述的网络设备，其特征在于，所述第一复制MAC CE为版本16复制MAC CE，所述第二复制MAC CE为版本15复制MAC CE。
  59. 一种终端设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求1至19中任一项所述的方法。
  60. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求1至19中任一项所述的方法。
  61. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求1至19中任一项所述的方法。
  62. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求1至19中任一项所述的方法。
  63. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求1至19中任一项所述的方法。
  64. 一种网络设备，其特征在于，包括：处理器和存储器，该存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求20至29中任一项所述的方法。
  65. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求20至29中任一项所述的方法。
  66. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求20至29中任一项所述的方法。
  67. 一种计算机程序产品，其特征在于，包括计算机程序指令，该计算机程序指令使得计算机执行如权利要求20至29中任一项所述的方法。
  68. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求20至29中任一项所述的方法。
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