WO2019047163A1 - 配置分组数据汇聚协议pdcp的方法、终端设备和网络设备 - Google Patents

配置分组数据汇聚协议pdcp的方法、终端设备和网络设备 Download PDF

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Publication number
WO2019047163A1
WO2019047163A1 PCT/CN2017/101050 CN2017101050W WO2019047163A1 WO 2019047163 A1 WO2019047163 A1 WO 2019047163A1 CN 2017101050 W CN2017101050 W CN 2017101050W WO 2019047163 A1 WO2019047163 A1 WO 2019047163A1
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Prior art keywords
pdcp entity
pdcp
entity
configuration information
communication protocol
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PCT/CN2017/101050
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English (en)
French (fr)
Inventor
唐海
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 PCT/CN2017/101050 priority Critical patent/WO2019047163A1/zh
Priority to CN201780050436.3A priority patent/CN109757130B/zh
Publication of WO2019047163A1 publication Critical patent/WO2019047163A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements

Definitions

  • the present application relates to the field of communications, and more particularly, to a method, a terminal device, and a network device for configuring a PDCP.
  • LTE Long Term Evolution
  • the LTE version of the Packet Data Convergence Protocol (PDCP) layer and the lower layer is the LTE version of the Radio Link Control (RLC) and the Medium Access Control (MAC) layer;
  • RLC Radio Link Control
  • MAC Medium Access Control
  • the new radio (NR) version of the PDCP layer the lower layer is the LTE version of the RLC and MAC layer.
  • the network device performs the conversion of the two bearer modes in the buffer of the signaling radio bearer (SRB), and the data is generated in the terminal device.
  • SRB signaling radio bearer
  • the PDCP entity cannot be converted.
  • the network device cannot confirm that the terminal device does not currently have uplink data in the SRB cache, if the terminal device has uplink data transmission, it may not be able to receive.
  • the embodiment of the present application provides a method for configuring a PDCP, a terminal device, and a network device.
  • the network device can implement switching between different PDCP entities without confirming that the terminal device does not currently have uplink data transmission, and the terminal device can also implement different Switching between PDCP entities.
  • the embodiment of the present application provides a method for configuring a packet data convergence protocol (PDCP), including:
  • the PDCP sending entity and the PDCP are connected according to the configuration information.
  • the receiving entity switches from the first PDCP entity to the second PDCP entity.
  • the terminal device receives the configuration information that is sent by the network device and indicates that the PDCP is switched. After the response message is sent, the PDCP switch is performed according to the configuration information, so that the terminal device receives the configuration.
  • the data sent after the information and the time period before the response message is sent can be received by the network device, thereby ensuring that the PDCP handover does not affect the data transmission of the terminal device.
  • the switching between the PDCP sending entity and the PDCP receiving entity from the first PDCP entity to the second PDCP entity according to the configuration information includes:
  • the first PDCP entity for the PDCP sending entity and the PDCP receiving entity And releasing, according to the configuration information, the first PDCP entity for the PDCP sending entity and the PDCP receiving entity, and establishing the second PDCP entity for the PDCP sending entity and the PDCP receiving entity.
  • the method further includes:
  • Data transmission and reception is performed by the second PDCP entity.
  • the configuration information is radio resource control RRC connection reconfiguration information.
  • the first PDCP entity is a PDCP entity supporting a long term evolution LTE communication protocol
  • the second PDCP entity is a PDCP entity supporting a new wireless NR communication protocol
  • the first PDCP entity is a PDCP entity supporting an NR communication protocol
  • the second PDCP entity is a PDCP entity supporting an LTE communication protocol.
  • the embodiment of the present application provides a method for configuring a packet data convergence protocol (PDCP), including:
  • the first PDCP entity Transmitting, by the first PDCP entity, the configuration information to the terminal device, where the configuration information is used to indicate that the terminal device is to be switched from the first PDCP entity to the second PDCP entity, where the first PDCP entity and the second PDCP entity are in different communication protocol versions.
  • PDCP entity ;
  • the PDCP transmitting entity and the PDCP receiving entity are handed over from the first PDCP entity to the second PDCP entity.
  • the network device sends the terminal device to the terminal device. Sending the configuration information indicating that the PDCP switch is performed, and after receiving the response message, performing PDCP switching, so that the data sent by the terminal device after receiving the configuration information and before sending the response message can be received by the network device, and further Ensure that PDCP switching does not affect the data transmission of the terminal device.
  • the method before receiving the response message, the method further includes:
  • the switching between the PDCP sending entity and the PDCP receiving entity from the first PDCP entity to the second PDCP entity includes:
  • the method further includes:
  • Data transmission and reception is performed by the second PDCP entity.
  • the configuration information is radio resource control RRC connection reconfiguration information.
  • the first PDCP entity is a PDCP entity supporting a long term evolution LTE communication protocol
  • the second PDCP entity is a PDCP entity supporting a new wireless NR communication protocol
  • the first PDCP entity is a PDCP entity supporting an NR communication protocol
  • the second PDCP entity is a PDCP entity supporting an LTE communication protocol.
  • the embodiment of the present application provides a method for configuring a packet data convergence protocol (PDCP), including:
  • the configuration information sent by the first PDCP entity to the terminal device where the configuration information is used to indicate that the first PDCP entity and the second PDCP entity are PDCPs of different communication protocol versions. entity;
  • the first PDCP entity After receiving the response message, the first PDCP entity is released.
  • the network device sends the terminal device to the terminal device.
  • the data sent after the configuration information and the time period before the response message is sent can be received by the network device, thereby ensuring that the PDCP handover does not affect the data transmission of the terminal device.
  • the method before receiving the response message, the method further includes:
  • the terminal device receives, by the first PDCP entity and the second PDCP entity, the terminal device sends data.
  • the method further includes:
  • Data transmission and reception is performed by the second PDCP entity.
  • the configuration information is radio resource control RRC connection reconfiguration information.
  • the first PDCP entity is a PDCP entity supporting a long term evolution LTE communication protocol
  • the second PDCP entity is a PDCP entity supporting a new wireless NR communication protocol
  • the first PDCP entity is a PDCP entity supporting an NR communication protocol
  • the second PDCP entity is a PDCP entity supporting an LTE communication protocol.
  • the embodiment of the present application provides a terminal device, which can execute the module or unit of the method in the first aspect or any optional implementation manner of the first aspect.
  • the embodiment of the present application provides a network device, which can execute the module or unit of the method in any of the optional implementations of the second aspect or the second aspect.
  • the embodiment of the present application provides a network device, which can execute the module or unit of the method in any of the optional implementations of the third aspect or the third aspect.
  • a terminal device comprising a processor, a memory, and a communication interface.
  • the processor is coupled to the memory and communication interface.
  • the memory is for storing instructions for the processor to execute, and the communication interface is for communicating with other network elements under the control of the processor.
  • the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of the first aspect or any of the possible implementations of the first aspect.
  • a network device comprising a processor, a memory, and a communication interface.
  • the processor is coupled to the memory and communication interface.
  • the memory is for storing instructions for the processor to execute, and the communication interface is for communicating with other network elements under the control of the processor. This place When the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of any of the possible implementations of the second aspect or the second aspect.
  • a network device comprising a processor, a memory, and a communication interface.
  • the processor is coupled to the memory and communication interface.
  • the memory is for storing instructions for the processor to execute, and the communication interface is for communicating with other network elements under the control of the processor.
  • the processor executes the instructions stored by the memory, the execution causes the processor to perform the method of any of the possible implementations of the third aspect or the third aspect.
  • a tenth aspect a computer storage medium storing program code for instructing a computer to perform the method of any of the first aspect or the first aspect of the first aspect of the first aspect instruction.
  • a computer storage medium storing program code for instructing a computer to perform the method of any of the above second aspect or the second aspect of the possible implementation Instructions.
  • a computer storage medium storing program code for instructing a computer to perform the method in any one of the possible implementation manners of the third aspect or the third aspect Instructions.
  • a computer program product comprising instructions, when executed on a computer, causes the computer to perform the methods described in the above aspects.
  • FIG. 1 shows a wireless communication system to which the embodiment of the present application is applied.
  • FIG. 2 is a schematic flowchart of a method for configuring a PDCP according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of another method for configuring a PDCP according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of still another method for configuring a PDCP according to an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of another network device according to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of an apparatus for configuring a PDCP according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a system chip according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UPD Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • FIG. 1 shows a wireless communication system 100 to which an embodiment of the present application is applied.
  • the wireless communication system 100 can include a network device 110.
  • Network device 110 may be a device that communicates with a terminal device.
  • Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices (e.g., UEs) located within the coverage area.
  • the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or may be a base station (NodeB, NB) in a WCDMA system, or may be an evolved base station in an LTE system.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • the network device can be a relay station, an access point, an in-vehicle device, a wearable device, A network side device in a future 5G network or a network device in a publicly available Public Land Mobile Network (PLMN) in the future.
  • PLMN Public Land Mobile Network
  • the wireless communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110.
  • Terminal device 120 can be mobile or fixed.
  • the terminal device 120 may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • D2D device to device communication
  • D2D device to device
  • the 5G system or network may also be referred to as a New Radio (NR) system or network.
  • NR New Radio
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the wireless communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device. The application embodiment does not limit this.
  • the wireless communication system 100 may further include other network entities, such as a network controller, a mobility management entity, and the like.
  • network entities such as a network controller, a mobility management entity, and the like.
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • FIG. 2 is a schematic flowchart of a method 200 for configuring a PDCP according to an embodiment of the present application.
  • the method 200 may be performed by a terminal device, which may be a terminal device as shown in FIG. 1.
  • the network device in the method 200 may be a network device as shown in FIG. Method 200 includes the following.
  • the data transmitted by the terminal device through the first PDCP entity needs to be received by the first PDCP entity, that is, the terminal device and the network device can transmit and receive data through the PDCP entity under the same communication protocol version.
  • the PDCP entity is located at the PDCP layer, including the transmitting entity and the receiving entity.
  • multiple PDCP entities may be defined, and each PDCP entity carries data of one radio bearer.
  • a PDCP entity may be associated with the control plane or associated with the user plane, depending on which radio bearer it carries data for.
  • the switching from the first PDCP entity to the second PDCP entity refers to establishing a second PDCP entity and releasing the first PDCP entity.
  • establishing a PDCP entity refers to establishing a new PDCP transmitting entity and a PDCP receiving entity.
  • the release of the PDCP entity refers to the release of the original PDCP sending entity and the PDCP receiving entity.
  • the RCL layer and the MAC layer of the lower layer are established.
  • the lower layer RCL layer and MAC layer are released.
  • the configuration information is Radio Resource Control (RRC) connection reconfiguration information.
  • RRC Radio Resource Control
  • the configuration information may be RRC connection reconfiguration information.
  • the bit sequence sent by the PDCP entity in different communication protocol versions may have different interpretations.
  • the data packet header, data packet, and the like sent by the PDCP entity in different communication protocol versions occupy different bits.
  • the first PDCP entity is a PDCP entity supporting an LTE communication protocol
  • the second PDCP entity is a PDCP entity supporting an NR communication protocol.
  • the first PDCP entity is a PDCP entity supporting an NR communication protocol
  • the second PDCP entity is a PDCP entity supporting an LTE communication protocol.
  • the LTE version of the PDCP layer, the lower layer is the LTE version of the RLC layer and the MAC layer; the NR version of the PDCP layer, and the lower layer is the LTE version of the RLC layer and the MAC layer.
  • the first PDCP entity is a PDCP entity supporting an evolved LTE (Evolved LTE, eLTE) communication protocol
  • the second PDCP entity is a PDCP entity supporting an NR communication protocol.
  • the first PDCP entity is a PDCP entity supporting an NR communication protocol
  • the second PDCP entity is a PDCP entity supporting an eLTE communication protocol.
  • the response message may be radio resource control connection reconfiguration complete information, for example, the response message is RRC connection reconfigurationComplete information.
  • the network device also receives the response message through the first PDCP entity.
  • the terminal device is already in the buffer of the SRB before receiving the configuration information.
  • the uplink data is buffered, that is, the network device receives the uplink data buffered in the SRB through the first PDCP entity before receiving the response message (RRC connection reconfiguration Complete).
  • the terminal device converts the version of the PDCP sending entity (Up-Link, UL) and the PDCP receiving entity (Down Link, DL).
  • the switching of the PDCP sending entity and the PDCP receiving entity from the first PDCP entity to the second PDCP entity according to the configuration information includes:
  • the first PDCP entity for the PDCP sending entity and the PDCP receiving entity And releasing, according to the configuration information, the first PDCP entity for the PDCP sending entity and the PDCP receiving entity, and establishing the second PDCP entity for the PDCP sending entity and the PDCP receiving entity.
  • the PDCP transmitting entity and the PDCP receiving entity are the same PDCP entity.
  • the method 200 further includes: performing data transmission and reception by using the second PDCP entity. That is, after the PDCP sending entity and the PDCP receiving entity are switched from the first PDCP entity to the second PDCP entity, the terminal device performs data transmission and reception through the second PDCP entity.
  • the terminal device receives the configuration information that is sent by the network device and indicates that the PDCP is switched. After the response message is sent, the PDCP switch is performed according to the configuration information, so that the terminal device receives the configuration.
  • the data sent after the information and the time period before the response message is sent can be received by the network device, thereby ensuring that the PDCP handover does not affect the data transmission of the terminal device.
  • FIG. 3 is a schematic flowchart of a method 300 for configuring a PDCP according to an embodiment of the present application.
  • the method 300 may be performed by a network device, which may be a network device as shown in FIG. 1.
  • the terminal device in the method 300 may be a terminal device as shown in FIG. Method 300 includes the following.
  • the PDCP entity under the version.
  • the configuration information is RRC connection reconfiguration information.
  • the first PDCP entity is a PDCP entity supporting an LTE communication protocol
  • the second The PDCP entity is a PDCP entity that supports the NR communication protocol.
  • the first PDCP entity is a PDCP entity supporting an NR communication protocol
  • the second PDCP entity is a PDCP entity supporting an LTE communication protocol.
  • the first PDCP entity is a PDCP entity supporting an eLTE communication protocol
  • the second PDCP entity is a PDCP entity supporting an NR communication protocol.
  • the first PDCP entity is a PDCP entity supporting an NR communication protocol
  • the second PDCP entity is a PDCP entity supporting an eLTE communication protocol.
  • the method 300 before receiving the response message, the method 300 further includes:
  • the network device converts the version of its own PDCP sending entity (DL) and PDCP receiving entity (UL) after receiving the RRC connection reconfigurationComplete.
  • the switching between the PDCP sending entity and the PDCP receiving entity from the first PDCP entity to the second PDCP entity includes:
  • the method 300 further includes: performing data transmission and reception by using the second PDCP entity. That is, after the PDCP sending entity and the PDCP receiving entity are switched from the first PDCP entity to the second PDCP entity, the network device performs data transmission and reception through the second PDCP entity.
  • steps in the method 300 for configuring the PDCP may refer to the description of the corresponding steps in the method 200 for configuring the PDCP, and for brevity, no further details are provided herein.
  • the network device sends configuration information indicating that the PDCP handover is performed to the terminal device, and after receiving the response message, the PDCP handover is performed, so that after receiving the configuration information, the terminal device
  • the data sent during the time period before the response message is sent can be received by the network device, thereby ensuring that the PDCP handover does not affect the data transmission of the terminal device.
  • FIG. 4 is a schematic flowchart of a method 400 for configuring a PDCP according to an embodiment of the present application.
  • the method 400 can be performed by a network device, which can be as shown in FIG.
  • the illustrated network device, the terminal device in the method 400 can be a terminal device as shown in FIG. 1, and the method 400 includes the following.
  • PDCP entity The configuration information sent by the first PDCP entity to the terminal device, where the configuration information is used to indicate that the first PDCP entity is switched to the second PDCP entity, where the first PDCP entity and the second PDCP entity are different communication protocol versions.
  • the configuration information is RRC connection reconfiguration information.
  • the first PDCP entity is a PDCP entity supporting an LTE communication protocol
  • the second PDCP entity is a PDCP entity supporting an NR communication protocol.
  • the first PDCP entity is a PDCP entity supporting an NR communication protocol
  • the second PDCP entity is a PDCP entity supporting an LTE communication protocol.
  • the first PDCP entity is a PDCP entity supporting an eLTE communication protocol
  • the second PDCP entity is a PDCP entity supporting an NR communication protocol.
  • the first PDCP entity is a PDCP entity supporting an NR communication protocol
  • the second PDCP entity is a PDCP entity supporting an eLTE communication protocol.
  • the network device maintains the first PDCP entity, that is, the network device can perform data transmission and reception through the first PDCP entity.
  • maintaining the PDCP entity refers to retaining the data transmission and reception function of the PDCP entity while retaining the RLC layer and the MAC layer of the lower layer.
  • the entity that the network device maintains two PDCP versions at this time (for example, both the LTE version of the PDCP entity and the NR version of the PDCP entity) can receive.
  • the terminal device converts the version of its own PDCP sending entity (UL) and the PDCP receiving entity (DL).
  • the terminal device switches its own PDCP sending entity (UL) and the PDCP receiving entity (DL) from the first PDCP entity to the second PDCP entity. At this time, the terminal device passes the second PDCP. The entity sends the response message.
  • UL own PDCP sending entity
  • DL PDCP receiving entity
  • the terminal device switches its own PDCP sending entity (UL) and the PDCP receiving entity (DL) from the first PDCP entity to the second PDCP entity.
  • the terminal device sends the response message through the first PDCP entity.
  • the method before receiving the response message, the method further includes:
  • the terminal device receives, by the first PDCP entity and the second PDCP entity, the terminal device sends data.
  • the network device can receive the data sent by the terminal device by using the first PDCP entity, and can receive the data sent by the terminal device by using the second PDCP entity.
  • the method further includes: performing data transmission and reception by using the second PDCP entity. That is, after the PDCP sending entity and the PDCP receiving entity are switched from the first PDCP entity to the second PDCP entity, the network device performs data transmission and reception through the second PDCP entity.
  • steps in the method 400 of configuring the PDCP may refer to the description of the corresponding steps in the method 200 for configuring the PDCP.
  • steps in the method 400 of configuring the PDCP may refer to the description of the corresponding steps in the method 200 for configuring the PDCP.
  • the network device sends configuration information indicating that the PDCP handover is performed to the terminal device, and after the configuration information is sent, the PDCP entity before the handover is maintained, and the PDCP entity that needs to be switched is established. After receiving the response message, the PDCP entity before the handover is released, so that the data sent by the terminal device after receiving the configuration information and before the response message is sent can be received by the network device, thereby ensuring that the PDCP handover does not affect. Data transmission of the terminal device.
  • FIG. 5 is a schematic block diagram of a terminal device 500 according to an embodiment of the present application. As shown in FIG. 5, the terminal device 500 includes:
  • the transceiver unit 510 is configured to receive, by using the first PDCP entity, configuration information that is sent by the network device, where the configuration information is used to indicate that the first PDCP entity is different from the second PDCP entity, where the first PDCP entity and the second PDCP entity are different.
  • a PDCP entity under the communication protocol version
  • the transceiver unit 510 is further configured to send, by using the first PDCP entity, a response message for the configuration information to the network device;
  • the processing unit 520 is configured to, after the sending and receiving unit 510 sends the response message, switch the PDCP sending entity and the PDCP receiving entity from the first PDCP entity to the second PDCP entity according to the configuration information.
  • processing unit 520 is specifically configured to:
  • the first PDCP entity for the PDCP sending entity and the PDCP receiving entity And releasing, according to the configuration information, the first PDCP entity for the PDCP sending entity and the PDCP receiving entity, and establishing the second PDCP entity for the PDCP sending entity and the PDCP receiving entity.
  • the transceiver unit 510 is further configured to perform data transmission and reception by using the second PDCP entity.
  • the configuration information is radio resource control RRC connection reconfiguration information.
  • the first PDCP entity is a PDCP entity supporting a long term evolution LTE communication protocol
  • the second PDCP entity is a PDCP entity supporting a new wireless NR communication protocol
  • the first PDCP entity is a PDCP entity supporting an NR communication protocol
  • the second PDCP entity is a PDCP entity supporting an LTE communication protocol.
  • terminal device 500 may correspond to the terminal device in the method 200 of the present application, and the foregoing and other operations and/or functions of the respective units in the terminal device 500 respectively implement the method 200 shown in FIG. 2 .
  • the corresponding process of the terminal device is not described here for brevity.
  • FIG. 6 is a schematic block diagram of a network device 600 in accordance with an embodiment of the present application. As shown in FIG. 6, the network device 600 includes:
  • the transceiver unit 610 is configured to send configuration information to the terminal device by using the first packet data convergence protocol PDCP entity, where the configuration information is used to indicate that the terminal device switches from the first PDCP entity to the second PDCP entity, the first PDCP entity and the
  • the second PDCP entity is a PDCP entity under different communication protocol versions;
  • the transceiver unit 610 is further configured to receive, by using the first PDCP entity, a response message sent by the terminal device for the configuration information;
  • the processing unit 620 is configured to, after the transceiver unit 610 receives the response message, switch the PDCP sending entity and the PDCP receiving entity from the first PDCP entity to the second PDCP entity.
  • the transceiver unit 610 is further configured to receive data sent by the terminal device by using the first PDCP entity.
  • processing unit 620 is specifically configured to:
  • the transceiver unit 610 is further configured to perform data transmission and reception by using the second PDCP entity.
  • the configuration information is radio resource control RRC connection reconfiguration information.
  • the first PDCP entity is a PDCP entity supporting a long term evolution LTE communication protocol
  • the second PDCP entity is a PDCP entity supporting a new wireless NR communication protocol
  • the first PDCP entity is a PDCP entity supporting an NR communication protocol
  • the second PDCP entity is a PDCP entity supporting an LTE communication protocol.
  • the network device 600 may correspond to the network device in the method 300 of the present application, and the foregoing and other operations and/or functions of the respective units in the network device 600 respectively implement the method 300 shown in FIG.
  • the corresponding process of the network device is not described here for brevity.
  • FIG. 7 is a schematic block diagram of a network device 700 in accordance with an embodiment of the present application. As shown in FIG. 7, the network device 700 includes:
  • the transceiver unit 710 is configured to send configuration information to the terminal device by using the first packet data convergence protocol PDCP entity, where the configuration information is used to indicate that the first PDCP entity is switched to the second PDCP entity, the first PDCP entity and the second
  • the PDCP entity is a PDCP entity under different communication protocol versions
  • the processing unit 720 is configured to: after the sending and receiving unit 710 sends the configuration information, hold the first PDCP entity, and establish the second PDCP entity;
  • the transceiver unit 710 is further configured to receive, by the first PDCP entity and the second PDCP entity, a response message sent by the terminal device for the configuration information;
  • the processing unit 720 is further configured to release the first PDCP entity after receiving the response message.
  • the transceiver unit 710 is further configured to receive, by using the first PDCP entity and the second PDCP entity, the terminal device to send data.
  • the transceiver unit 710 is further configured to perform data transmission and reception by using the second PDCP entity.
  • the configuration information is radio resource control RRC connection reconfiguration information.
  • the first PDCP entity is a PDCP entity supporting a long term evolution LTE communication protocol
  • the second PDCP entity is a PDCP entity supporting a new wireless NR communication protocol
  • the first PDCP entity is a PDCP entity supporting an NR communication protocol
  • the second PDCP entity is a PDCP entity supporting an LTE communication protocol.
  • the network device 700 may correspond to the network device in the method 400 of the present application, and the above and other operations and/or functions of the respective units in the network device 700 respectively implement the method 400 shown in FIG.
  • the corresponding process of the network device is not described here for brevity.
  • FIG. 8 is a schematic block diagram of a device 800 for configuring a PDCP according to an embodiment of the present application.
  • the device 800 includes:
  • a memory 810 configured to store a program, where the program includes a code
  • transceiver 820 configured to communicate with other devices
  • the processor 830 is configured to execute program code in the memory 810.
  • the processor 830 can implement various operations performed by the terminal device in the method 200 in FIG. 2, and details are not described herein for brevity.
  • the device 800 can be a terminal device (eg, a mobile phone).
  • the transceiver 820 is configured to perform specific signal transceiving under the driving of the processor 830.
  • the processor 830 can also implement the method 300 in FIG. 3 or implement various operations performed by the network device in the method 400 in FIG. 4, and details are not described herein for brevity.
  • the device 800 can be a network device (eg, an access network device or a core network device).
  • the processor 830 may be a central processing unit (CPU), and the processor 830 may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits. (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and more.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 810 can include read only memory and random access memory and provides instructions and data to the processor 830. A portion of the memory 810 may also include a non-volatile random access memory. For example, the memory 810 can also store information of the device type.
  • the transceiver 820 can be used to implement signal transmission and reception functions, such as frequency modulation and demodulation functions or up-conversion and down-conversion functions.
  • the device 800 configuring the PDCP can be a chip or a chipset.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor 830 reads the information in the memory and performs the steps of the above method in combination with the hardware thereof. To avoid repetition, it will not be described in detail here.
  • FIG. 9 is a schematic structural diagram of a system chip 900 according to an embodiment of the present application.
  • the system chip 900 of FIG. 9 includes an input interface 901, an output interface 902, a processor 903, and a memory 904 that can be connected by an internal communication connection line.
  • the processor 903 is configured to execute the memory 904. Code.
  • the processor 903 implements a method performed by the terminal device in the method embodiment. For the sake of brevity, it will not be repeated here.
  • the processor 903 when the code is executed, the processor 903 implements a method performed by a network device in a method embodiment. For the sake of brevity, it will not be repeated here.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present application or the part contributing to the prior art or the part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本申请实施例提供了一种配置PDCP的方法、终端设备和网络设备，网络设备无需确认终端设备当前无上行数据传输，就可以实现不同PDCP实体之间的切换，同时，终端设备也可以实现不同PDCP实体之间的切换。该方法包括：通过第一PDCP实体接收网络设备发送的配置信息，该配置信息用于指示从第一PDCP实体切换至第二PDCP实体，该第一PDCP实体和该第二PDCP实体为不同通信协议版本下的PDCP实体；通过该第一PDCP实体向该网络设备发送针对该配置信息的响应消息；在发送该响应消息之后，根据该配置信息将PDCP发送实体和PDCP接收实体从该第一PDCP实体切换至该第二PDCP实体。

Description

配置分组数据汇聚协议PDCP的方法、终端设备和网络设备 技术领域
本申请涉及通信领域，并且更具体地，涉及一种配置PDCP的方法、终端设备和网络设备。
背景技术
在5G通信系统中，对于长期演进(Long Term Evolution，LTE)基站上的无线承载，可以有两种形态，分别为：
LTE版本的分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层，下层是LTE版本的无线链路控制(Radio Link Control，RLC)和媒体接入控制(Media Access Control，MAC)层；
新无线(New Radio，NR)版本的PDCP层，下层是LTE版本的RLC和MAC层。
现有技术中，网络设备在确认终端设备当前无上行数据在信令无线承载(Signaling Radio Bearer，SRB)的缓存中，才进行上述两种承载形态的转换，这就导致了在终端设备进行数据的发送或接收时，无法实现PDCP实体的转换，同时，在网络设备无法确认终端设备当前无上行数据在SRB的缓存中时，若终端设备存在上行数据传输，可能无法接收。
发明内容
本申请实施例提供了一种配置PDCP的方法、终端设备和网络设备，网络设备无需确认终端设备当前无上行数据传输，就可以实现不同PDCP实体之间的切换，同时，终端设备也可以实现不同PDCP实体之间的切换。
第一方面，本申请实施例提供了一种配置分组数据汇聚协议PDCP的方法，包括：
通过第一PDCP实体接收网络设备发送的配置信息，该配置信息用于指示从第一PDCP实体切换至第二PDCP实体，该第一PDCP实体和该第二PDCP实体为不同通信协议版本下的PDCP实体；
通过该第一PDCP实体向该网络设备发送针对该配置信息的响应消息；
在发送该响应消息之后，根据该配置信息将PDCP发送实体和PDCP接 收实体从该第一PDCP实体切换至该第二PDCP实体。
因此，在本申请实施例的配置PDCP的方法中，终端设备接收网络设备发送的指示进行PDCP切换的配置信息，在发送响应消息之后，才根据配置信息进行PDCP切换，从而终端设备在接收到配置信息之后及发送响应消息之前的时间段内所发送的数据能够被网络设备接收，进而，保证PDCP切换不会影响终端设备的数据发送。
可选地，在第一方面的一种实现方式中，该根据该配置信息将PDCP发送实体和PDCP接收实体从该第一PDCP实体切换至该第二PDCP实体，包括：
根据该配置信息，释放针对该PDCP发送实体和该PDCP接收实体的该第一PDCP实体，建立针对该PDCP发送实体和该PDCP接收实体的该第二PDCP实体。
可选地，在第一方面的一种实现方式中，该方法还包括：
通过该第二PDCP实体进行数据收发。
可选地，在第一方面的一种实现方式中，该配置信息为无线资源控制RRC连接重配置信息。
可选地，在第一方面的一种实现方式中，该第一PDCP实体为支持长期演进LTE通信协议的PDCP实体，该第二PDCP实体为支持新无线NR通信协议的PDCP实体；或者
该第一PDCP实体为支持NR通信协议的PDCP实体，该第二PDCP实体为支持LTE通信协议的PDCP实体。
第二方面，本申请实施例提供了一种配置分组数据汇聚协议PDCP的方法，包括：
通过第一PDCP实体向终端设备发送配置信息，该配置信息用于指示该终端设备从第一PDCP实体切换至第二PDCP实体，该第一PDCP实体和该第二PDCP实体为不同通信协议版本下的PDCP实体；
通过该第一PDCP实体接收该终端设备发送的针对该配置信息的响应消息；
在接收到该响应消息之后，将PDCP发送实体和PDCP接收实体从该第一PDCP实体切换至该第二PDCP实体。
因此，在本申请实施例的配置PDCP的方法中，网络设备向终端设备发 送指示进行PDCP切换的配置信息，在接收到响应消息之后，才进行PDCP切换，从而终端设备在接收到配置信息之后及发送响应消息之前的时间段内所发送的数据能够被网络设备接收，进而，保证PDCP切换不会影响终端设备的数据发送。
可选地，在第二方面的一种实现方式中，在接收该响应消息之前，该方法还包括：
通过该第一PDCP实体接收该终端设备发送的数据。
可选地，在第二方面的一种实现方式中，该将PDCP发送实体和PDCP接收实体从该第一PDCP实体切换至该第二PDCP实体，包括：
释放针对该PDCP发送实体和该PDCP接收实体的该第一PDCP实体，建立针对该PDCP发送实体和该PDCP接收实体的该第二PDCP实体。
可选地，在第二方面的一种实现方式中，该方法还包括：
通过该第二PDCP实体进行数据收发。
可选地，在第二方面的一种实现方式中，该配置信息为无线资源控制RRC连接重配置信息。
可选地，在第二方面的一种实现方式中，该第一PDCP实体为支持长期演进LTE通信协议的PDCP实体，该第二PDCP实体为支持新无线NR通信协议的PDCP实体；或者
该第一PDCP实体为支持NR通信协议的PDCP实体，该第二PDCP实体为支持LTE通信协议的PDCP实体。
第三方面，本申请实施例提供了一种配置分组数据汇聚协议PDCP的方法，包括：
通过第一PDCP实体向终端设备发送的配置信息，该配置信息用于指示从第一PDCP实体切换至第二PDCP实体，该第一PDCP实体和该第二PDCP实体为不同通信协议版本下的PDCP实体；
在发送该配置信息之后，保持该第一PDCP实体，及建立该第二PDCP实体；
通过该第一PDCP实体和该第二PDCP实体接收该终端设备发送的针对该配置信息的响应消息；
在接收到该响应消息之后，释放该第一PDCP实体。
因此，在本申请实施例的配置PDCP的方法中，网络设备向终端设备发 送指示进行PDCP切换的配置信息，在发送配置信息之后，保持切换前的PDCP实体，及建立所需要切换的PDCP实体，在接收到响应消息之后，释放切换前的PDCP实体，从而终端设备在接收到配置信息之后及发送响应消息之前的时间段内所发送的数据能够被网络设备接收，进而，保证PDCP切换不会影响终端设备的数据发送。
可选地，在第二方面的一种实现方式中，在接收该响应消息之前，该方法还包括：
通过该第一PDCP实体和该第二PDCP实体接收该终端设备发送数据。
可选地，在第二方面的一种实现方式中，该方法还包括：
通过该第二PDCP实体进行数据收发。
可选地，在第二方面的一种实现方式中，该配置信息为无线资源控制RRC连接重配置信息。
可选地，在第二方面的一种实现方式中，该第一PDCP实体为支持长期演进LTE通信协议的PDCP实体，该第二PDCP实体为支持新无线NR通信协议的PDCP实体；或者
该第一PDCP实体为支持NR通信协议的PDCP实体，该第二PDCP实体为支持LTE通信协议的PDCP实体。
第四方面，本申请实施例提供了一种终端设备，可以执行第一方面或第一方面的任一可选的实现方式中的方法的模块或者单元。
第五方面，本申请实施例提供了一种网络设备，可以执行第二方面或第二方面的任一可选的实现方式中的方法的模块或者单元。
第六方面，本申请实施例提供了一种网络设备，可以执行第三方面或第三方面的任一可选的实现方式中的方法的模块或者单元。
第七方面，提供了一种终端设备，该终端设备包括处理器、存储器和通信接口。处理器与存储器和通信接口连接。存储器用于存储指令，处理器用于执行该指令，通信接口用于在处理器的控制下与其他网元进行通信。该处理器执行该存储器存储的指令时，该执行使得该处理器执行第一方面或第一方面的任意可能的实现方式中的方法。
第八方面，提供了一种网络设备，该网络设备包括处理器、存储器和通信接口。处理器与存储器和通信接口连接。存储器用于存储指令，处理器用于执行该指令，通信接口用于在处理器的控制下与其他网元进行通信。该处 理器执行该存储器存储的指令时，该执行使得该处理器执行第二方面或第二方面的任意可能的实现方式中的方法。
第九方面，提供了一种网络设备，该网络设备包括处理器、存储器和通信接口。处理器与存储器和通信接口连接。存储器用于存储指令，处理器用于执行该指令，通信接口用于在处理器的控制下与其他网元进行通信。该处理器执行该存储器存储的指令时，该执行使得该处理器执行第三方面或第三方面的任意可能的实现方式中的方法。
第十方面，提供了一种计算机存储介质，该计算机存储介质中存储有程序代码，该程序代码用于指示计算机执行上述第一方面或第一方面的任一种可能的实现方式中的方法的指令。
第十一方面，提供了一种计算机存储介质，该计算机存储介质中存储有程序代码，该程序代码用于指示计算机执行上述第二方面或第二方面的任一种可能的实现方式中的方法的指令。
第十二方面，提供了一种计算机存储介质，该计算机存储介质中存储有程序代码，该程序代码用于指示计算机执行上述第三方面或第三方面的任一种可能的实现方式中的方法的指令。
第十三方面，提供了一种包括指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
附图说明
图1示出了本申请实施例应用的无线通信系统。
图2是根据本申请实施例的一种配置PDCP的方法的示意性流程图。
图3是根据本申请实施例的另一种配置PDCP的方法的示意性流程图。
图4是根据本申请实施例的再一种配置PDCP的方法的示意性流程图。
图5是根据本申请实施例的终端设备的示意性框图。
图6是根据本申请实施例的一种网络设备的示意性框图。
图7是根据本申请实施例的另一种网络设备的示意性框图。
图8示出了本申请实施例提供的配置PDCP的设备的示意性框图。
图9是根据本申请实施例的系统芯片的示意性结构图。
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清楚、完整地描述。
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，简称为“GSM”)系统、码分多址(Code Division Multiple Access，简称为“CDMA”)系统、宽带码分多址(Wideband Code Division Multiple Access，简称为“WCDMA”)系统、通用分组无线业务(General Packet Radio Service，简称为“GPRS”)、长期演进(Long Term Evolution，简称为“LTE”)系统、LTE频分双工(Frequency Division Duplex，简称为“FDD”)系统、LTE时分双工(Time Division Duplex，简称为“TDD”)、通用移动通信系统(Universal Mobile Telecommunication System，简称为“UMTS”)、全球互联微波接入(Worldwide Interoperability for Microwave Access，简称为“WiMAX”)通信系统或未来的5G系统等。
图1示出了本申请实施例应用的无线通信系统100。该无线通信系统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(例如UE)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中继站、接入点、车载设备、可穿戴设备、未来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。
该无线通信系统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。终端设备120可以是移动的或固定的。可选地，终端设备120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、未来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系统或网络还可以称为新无线(New Radio，NR)系统或网络。
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，该无线通信系统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，该无线通信系统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。
图2是根据本申请实施例的一种配置PDCP的方法200的示意性流程图。如图2所示，该方法200可以由终端设备执行，该终端设备可以是如图1中所示的终端设备，该方法200中的网络设备可以是如图1中所示的网络设备，该方法200包括以下内容。
210，通过第一PDCP实体接收网络设备发送的配置信息，该配置信息用于指示从第一PDCP实体切换至第二PDCP实体，该第一PDCP实体和该第二PDCP实体为不同通信协议版本下的PDCP实体。
应理解，终端设备通过第一PDCP实体发送的数据，网络设备也需要通过第一PDCP实体接收，即，终端设备和网络设备通过相同的通信协议版本下的PDCP实体才能实现数据的发送和接收。
应理解，PDCP实体位于PDCP层，包括发送实体和接收实体。
可选地，对于一个终端设备，可以定义多个PDCP实体，每个PDCP实体携带一个无线承载的数据。
可选地，一个PDCP实体可以关联控制平面，也可以关联用户平面，主要取决于它为哪种无线承载携带数据。
可选地，从第一PDCP实体切换至第二PDCP实体，是指建立第二PDCP实体，及释放第一PDCP实体。
应理解，建立PDCP实体是指建立新的PDCP发送实体和PDCP接收实体。释放PDCP实体是指释放原有的PDCP发送实体和PDCP接收实体。
可选地，在建立PDCP实体的同时，建立其下层的RCL层和MAC层。
可选地，在释放PDCP实体的同时，释放其下层的RCL层和MAC层。
可选地，该配置信息为无线资源控制(Radio Resource Control，RRC)连接重配置信息，例如，该配置信息可以是RRCconnectionreconfiguration信息。
可选地，不同通信协议版本下的PDCP实体所发送的比特序列可以有不同的解释，例如，不同通信协议版本下的PDCP实体所发送的数据包头、数据包等所占用的比特位不同。
可选地，该第一PDCP实体为支持LTE通信协议的PDCP实体，该第二PDCP实体为支持NR通信协议的PDCP实体。
可选地，该第一PDCP实体为支持NR通信协议的PDCP实体，该第二PDCP实体为支持LTE通信协议的PDCP实体。
可选地，LTE版本的PDCP层，其下层是LTE版本的RLC层和MAC层；NR版本的PDCP层，其下层是LTE版本的RLC层和MAC层。
可选地，该第一PDCP实体为支持演进的LTE(Evolved LTE，eLTE)通信协议的PDCP实体，该第二PDCP实体为支持NR通信协议的PDCP实体。
可选地，该第一PDCP实体为支持NR通信协议的PDCP实体，该第二PDCP实体为支持eLTE通信协议的PDCP实体。
应理解，还可以是其他不同通信协议版本下的PDCP实体，本申请对比并不作限定。
220，通过该第一PDCP实体向该网络设备发送针对该配置信息的响应消息。
可选地，该响应消息可以是无线资源控制连接重配置完成信息，例如，该响应消息是RRCconnectionreconfigurationComplete信息。
应理解，此时该网络设备也通过该第一PDCP实体接收该响应消息。
可选地，终端设备在接收配置信息之前，已经在SRB的缓存(buffer) 中缓存了上行数据，即，网络设备在接收该响应消息(RRCconnectionreconfigurationComplete)之前，通过该第一PDCP实体接收SRB中缓存的上行数据。
230，在发送该响应消息之后，根据该配置信息将PDCP发送实体和PDCP接收实体从该第一PDCP实体切换至该第二PDCP实体。
可选地，终端设备在回复RRCconnectionreconfigurationComplete之后，将自身的PDCP发送实体(Up-Link，UL)和PDCP接收实体(Down Link，DL)的版本进行转换。
可选地，该根据该配置信息将PDCP发送实体和PDCP接收实体从该第一PDCP实体切换至该第二PDCP实体，包括：
根据该配置信息，释放针对该PDCP发送实体和该PDCP接收实体的该第一PDCP实体，建立针对该PDCP发送实体和该PDCP接收实体的该第二PDCP实体。
应理解，该PDCP发送实体和该PDCP接收实体为相同的PDCP实体。
可选地，该方法200还包括：通过该第二PDCP实体进行数据收发。即在将PDCP发送实体和PDCP接收实体从该第一PDCP实体切换至该第二PDCP实体之后，终端设备通过该第二PDCP实体进行数据收发。
因此，在本申请实施例的配置PDCP的方法中，终端设备接收网络设备发送的指示进行PDCP切换的配置信息，在发送响应消息之后，才根据配置信息进行PDCP切换，从而终端设备在接收到配置信息之后及发送响应消息之前的时间段内所发送的数据能够被网络设备接收，进而，保证PDCP切换不会影响终端设备的数据发送。
图3是根据本申请实施例的一种配置PDCP的方法300的示意性流程图。如图3所示，该方法300可以由网络设备执行，该网络设备可以是如图1中所示的网络设备，该方法300中的终端设备可以是如图1中所示的终端设备，该方法300包括以下内容。
310，通过第一PDCP实体向终端设备发送配置信息，该配置信息用于指示该终端设备从第一PDCP实体切换至第二PDCP实体，该第一PDCP实体和该第二PDCP实体为不同通信协议版本下的PDCP实体。
可选地，该配置信息为RRC连接重配置信息。
可选地，该第一PDCP实体为支持LTE通信协议的PDCP实体，该第二 PDCP实体为支持NR通信协议的PDCP实体。
可选地，该第一PDCP实体为支持NR通信协议的PDCP实体，该第二PDCP实体为支持LTE通信协议的PDCP实体。
可选地，该第一PDCP实体为支持eLTE通信协议的PDCP实体，该第二PDCP实体为支持NR通信协议的PDCP实体。
可选地，该第一PDCP实体为支持NR通信协议的PDCP实体，该第二PDCP实体为支持eLTE通信协议的PDCP实体。
320，通过该第一PDCP实体接收该终端设备发送的针对该配置信息的响应消息。
可选地，在接收该响应消息之前，该方法300还包括：
通过该第一PDCP实体接收该终端设备发送的数据。
330，在接收到该响应消息之后，将PDCP发送实体和PDCP接收实体从该第一PDCP实体切换至该第二PDCP实体。
可选地，网络设备在收到RRCconnectionreconfigurationComplete之后将自身的PDCP发送实体(DL)和PDCP接收实体(UL)的版本进行转换。
可选地，该将PDCP发送实体和PDCP接收实体从该第一PDCP实体切换至该第二PDCP实体，包括：
释放针对该PDCP发送实体和该PDCP接收实体的该第一PDCP实体，建立针对该PDCP发送实体和该PDCP接收实体的该第二PDCP实体。
可选地，该方法300还包括：通过该第二PDCP实体进行数据收发。即在将PDCP发送实体和PDCP接收实体从该第一PDCP实体切换至该第二PDCP实体之后，网络设备通过该第二PDCP实体进行数据收发。
应理解，配置PDCP的方法300中的步骤可以参考配置PDCP的方法200中的相应步骤的描述，为了简洁，在此不再赘述。
因此，在本申请实施例的配置PDCP的方法中，网络设备向终端设备发送指示进行PDCP切换的配置信息，在接收到响应消息之后，才进行PDCP切换，从而终端设备在接收到配置信息之后及发送响应消息之前的时间段内所发送的数据能够被网络设备接收，进而，保证PDCP切换不会影响终端设备的数据发送。
图4是根据本申请实施例的一种配置PDCP的方法400的示意性流程图。如图4所示，该方法400可以由网络设备执行，该网络设备可以是如图1中 所示的网络设备，该方法400中的终端设备可以是如图1中所示的终端设备，该方法400包括以下内容。
410，通过第一PDCP实体向终端设备发送的配置信息，该配置信息用于指示从第一PDCP实体切换至第二PDCP实体，该第一PDCP实体和该第二PDCP实体为不同通信协议版本下的PDCP实体。
可选地，该配置信息为RRC连接重配置信息。
可选地，该第一PDCP实体为支持LTE通信协议的PDCP实体，该第二PDCP实体为支持NR通信协议的PDCP实体。
可选地，该第一PDCP实体为支持NR通信协议的PDCP实体，该第二PDCP实体为支持LTE通信协议的PDCP实体。
可选地，该第一PDCP实体为支持eLTE通信协议的PDCP实体，该第二PDCP实体为支持NR通信协议的PDCP实体。
可选地，该第一PDCP实体为支持NR通信协议的PDCP实体，该第二PDCP实体为支持eLTE通信协议的PDCP实体。
420，在发送该配置信息之后，保持该第一PDCP实体，及建立该第二PDCP实体。
应理解，网络设备保持该第一PDCP实体，即网络设备可以通过该第一PDCP实体进行数据的收发。
可选地，保持PDCP实体是指保留PDCP实体的收发数据功能，同时保留其下层的RLC层和MAC层。
可选地，网络设备此时保持了两个PDCP版本(例如，既有LTE版本的PDCP实体，又有NR版本的PDCP实体)的实体，都可以进行接收。
430，通过该第一PDCP实体和该第二PDCP实体接收该终端设备发送的针对该配置信息的响应消息。
可选地，终端设备收到RRCconnectionreconfiguration之后，将自身的PDCP发送实体(UL)和PDCP接收实体(DL)的版本进行转换。
可选地，终端设备在收到配置信息之后，将自身的PDCP发送实体(UL)和PDCP接收实体(DL)从第一PDCP实体切换至第二PDCP实体，此时，终端设备通过第二PDCP实体发送该响应消息。
可选地，终端设备在发送响应信息之后，将自身的PDCP发送实体(UL)和PDCP接收实体(DL)从第一PDCP实体切换至第二PDCP实体，此时， 终端设备通过第一PDCP实体发送该响应消息。
可选地，在接收该响应消息之前，该方法还包括：
通过该第一PDCP实体和该第二PDCP实体接收该终端设备发送数据。
应理解，网络设备此时既可以通过该第一PDCP实体接收该终端设备发送数据，又可以通过该第二PDCP实体接收该终端设备发送数据。
440，在接收到该响应消息之后，释放该第一PDCP实体。
可选地，该方法还包括：通过该第二PDCP实体进行数据收发。即在将PDCP发送实体和PDCP接收实体从该第一PDCP实体切换至该第二PDCP实体之后，网络设备通过该第二PDCP实体进行数据收发。
应理解，配置PDCP的方法400中的步骤可以参考配置PDCP的方法200中的相应步骤的描述，为了简洁，在此不再赘述。
因此，在本申请实施例的配置PDCP的方法中，网络设备向终端设备发送指示进行PDCP切换的配置信息，在发送配置信息之后，保持切换前的PDCP实体，及建立所需要切换的PDCP实体，在接收到响应消息之后，释放切换前的PDCP实体，从而终端设备在接收到配置信息之后及发送响应消息之前的时间段内所发送的数据能够被网络设备接收，进而，保证PDCP切换不会影响终端设备的数据发送。
图5是根据本申请实施例的终端设备500的示意性框图。如图5所示，该终端设备500包括：
收发单元510，用于通过第一PDCP实体接收网络设备发送的配置信息，该配置信息用于指示从第一PDCP实体切换至第二PDCP实体，该第一PDCP实体和该第二PDCP实体为不同通信协议版本下的PDCP实体；
该收发单元510，还用于通过该第一PDCP实体向该网络设备发送针对该配置信息的响应消息；
处理单元520，用于在该收发单元510发送该响应消息之后，根据该配置信息将PDCP发送实体和PDCP接收实体从该第一PDCP实体切换至该第二PDCP实体。
可选地，该处理单元520具体用于：
根据该配置信息，释放针对该PDCP发送实体和该PDCP接收实体的该第一PDCP实体，建立针对该PDCP发送实体和该PDCP接收实体的该第二PDCP实体。
可选地，该收发单元510，还用于通过该第二PDCP实体进行数据收发。
可选地，该配置信息为无线资源控制RRC连接重配置信息。
可选地，该第一PDCP实体为支持长期演进LTE通信协议的PDCP实体，该第二PDCP实体为支持新无线NR通信协议的PDCP实体；或者
该第一PDCP实体为支持NR通信协议的PDCP实体，该第二PDCP实体为支持LTE通信协议的PDCP实体。
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200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2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6是根据本申请实施例的网络设备600的示意性框图。如图6所示，该网络设备600包括：
收发单元610，用于通过第一分组数据汇聚协议PDCP实体向终端设备发送配置信息，该配置信息用于指示该终端设备从第一PDCP实体切换至第二PDCP实体，该第一PDCP实体和该第二PDCP实体为不同通信协议版本下的PDCP实体；
该收发单元610，还用于通过该第一PDCP实体接收该终端设备发送的针对该配置信息的响应消息；
处理单元620，用于在该收发单元610接收到该响应消息之后，将PDCP发送实体和PDCP接收实体从该第一PDCP实体切换至该第二PDCP实体。
可选地，在该收发单元610接收该响应消息之前，该收发单元610，还用于通过该第一PDCP实体接收该终端设备发送的数据。
可选地，该处理单元620具体用于：
释放针对该PDCP发送实体和该PDCP接收实体的该第一PDCP实体，建立针对该PDCP发送实体和该PDCP接收实体的该第二PDCP实体。
可选地，该收发单元610，还用于通过该第二PDCP实体进行数据收发。
可选地，该配置信息为无线资源控制RRC连接重配置信息。
可选地，该第一PDCP实体为支持长期演进LTE通信协议的PDCP实体，该第二PDCP实体为支持新无线NR通信协议的PDCP实体；或者
该第一PDCP实体为支持NR通信协议的PDCP实体，该第二PDCP实体为支持LTE通信协议的PDCP实体。
应理解，根据本申请实施例的网络设备600可对应于本申请方法300中的网络设备，并且网络设备600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300中网络设备的相应流程，为了简洁，在此不再赘述。
图7是根据本申请实施例的网络设备700的示意性框图。如图7所示，该网络设备700包括：
收发单元710，用于通过第一分组数据汇聚协议PDCP实体向终端设备发送的配置信息，该配置信息用于指示从第一PDCP实体切换至第二PDCP实体，该第一PDCP实体和该第二PDCP实体为不同通信协议版本下的PDCP实体；
处理单元720，用于在该收发单元710发送该配置信息之后，保持该第一PDCP实体，及建立该第二PDCP实体；
该收发单元710，还用于通过该第一PDCP实体和该第二PDCP实体接收该终端设备发送的针对该配置信息的响应消息；
该处理单元720，还用于在接收到该响应消息之后，释放该第一PDCP实体。
可选地，在该收发单元710接收该响应消息之前，该收发单元710，还用于通过该第一PDCP实体和该第二PDCP实体接收该终端设备发送数据。
可选地，该收发单元710，还用于通过该第二PDCP实体进行数据收发。
可选地，该配置信息为无线资源控制RRC连接重配置信息。
可选地，该第一PDCP实体为支持长期演进LTE通信协议的PDCP实体，该第二PDCP实体为支持新无线NR通信协议的PDCP实体；或者
该第一PDCP实体为支持NR通信协议的PDCP实体，该第二PDCP实体为支持LTE通信协议的PDCP实体。
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400中的网络设备，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4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8示出了本申请实施例提供的配置PDCP的设备800的示意性框图，该设备800包括：
存储器810，用于存储程序，该程序包括代码；
收发器820，用于和其他设备进行通信；
处理器830，用于执行存储器810中的程序代码。
可选地，当该代码被执行时，该处理器830可以实现图2中的方法200中终端设备执行的各个操作，为了简洁，在此不再赘述。此时，该设备800可以为终端设备(例如，手机)。收发器820用于在处理器830的驱动下执行具体的信号收发。
可选地，当该代码被执行时，该处理器830还可以实现图3中的方法300或实现图4中的方法400中网络设备执行的各个操作，为了简洁，在此不再赘述。此时，该设备800可以为网络设备(例如，接入网设备或核心网设备)。
应理解，在本申请实施例中，该处理器830可以是中央处理单元(Central Processing Unit，CPU)，该处理器830还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。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。
该存储器810可以包括只读存储器和随机存取存储器，并向处理器830提供指令和数据。存储器810的一部分还可以包括非易失性随机存取存储器。例如，存储器810还可以存储设备类型的信息。
收发器820可以是用于实现信号发送和接收功能，例如频率调制和解调功能或叫上变频和下变频功能。
在实现过程中，上述方法的至少一个步骤可以通过处理器830中的硬件的集成逻辑电路完成，或该集成逻辑电路可在软件形式的指令驱动下完成该至少一个步骤。因此，配置PDCP的设备800可以是个芯片或者芯片组。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器830读取存储器中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
图9是根据本申请实施例的系统芯片900的示意性结构图。图9的系统芯片900包括输入接口901、输出接口902、处理器903以及存储器904之间可以通过内部通信连接线路相连，该处理器903用于执行该存储器904中 的代码。
可选地，当该代码被执行时，该处理器903实现方法实施例中由终端设备执行的方法。为了简洁，在此不再赘述。
可选地，当该代码被执行时，该处理器903实现方法实施例中由网络设备执行的方法。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(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、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 (32)

  1. 一种配置分组数据汇聚协议PDCP的方法，其特征在于，包括：
    通过第一PDCP实体接收网络设备发送的配置信息，所述配置信息用于指示从第一PDCP实体切换至第二PDCP实体，所述第一PDCP实体和所述第二PDCP实体为不同通信协议版本下的PDCP实体；
    通过所述第一PDCP实体向所述网络设备发送针对所述配置信息的响应消息；
    在发送所述响应消息之后，根据所述配置信息将PDCP发送实体和PDCP接收实体从所述第一PDCP实体切换至所述第二PDCP实体。
  2. 根据权利要求1所述的方法，其特征在于，所述根据所述配置信息将PDCP发送实体和PDCP接收实体从所述第一PDCP实体切换至所述第二PDCP实体，包括：
    根据所述配置信息，释放针对所述PDCP发送实体和所述PDCP接收实体的所述第一PDCP实体，建立针对所述PDCP发送实体和所述PDCP接收实体的所述第二PDCP实体。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    通过所述第二PDCP实体进行数据收发。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述配置信息为无线资源控制RRC连接重配置信息。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述第一PDCP实体为支持长期演进LTE通信协议的PDCP实体，所述第二PDCP实体为支持新无线NR通信协议的PDCP实体；或者
    所述第一PDCP实体为支持NR通信协议的PDCP实体，所述第二PDCP实体为支持LTE通信协议的PDCP实体。
  6. 一种配置分组数据汇聚协议PDCP的方法，其特征在于，包括：
    通过第一PDCP实体向终端设备发送配置信息，所述配置信息用于指示所述终端设备从第一PDCP实体切换至第二PDCP实体，所述第一PDCP实体和所述第二PDCP实体为不同通信协议版本下的PDCP实体；
    通过所述第一PDCP实体接收所述终端设备发送的针对所述配置信息的响应消息；
    在接收到所述响应消息之后，将PDCP发送实体和PDCP接收实体从所 述第一PDCP实体切换至所述第二PDCP实体。
  7. 根据权利要求6所述的方法，其特征在于，在接收所述响应消息之前，所述方法还包括：
    通过所述第一PDCP实体接收所述终端设备发送的数据。
  8. 根据权利要求6或7所述的方法，其特征在于，所述将PDCP发送实体和PDCP接收实体从所述第一PDCP实体切换至所述第二PDCP实体，包括：
    释放针对所述PDCP发送实体和所述PDCP接收实体的所述第一PDCP实体，建立针对所述PDCP发送实体和所述PDCP接收实体的所述第二PDCP实体。
  9. 根据权利要求6至8中任一项所述的方法，其特征在于，所述方法还包括：
    通过所述第二PDCP实体进行数据收发。
  10. 根据权利要求6至9中任一项所述的方法，其特征在于，所述配置信息为无线资源控制RRC连接重配置信息。
  11. 根据权利要求6至10中任一项所述的方法，其特征在于，所述第一PDCP实体为支持长期演进LTE通信协议的PDCP实体，所述第二PDCP实体为支持新无线NR通信协议的PDCP实体；或者
    所述第一PDCP实体为支持NR通信协议的PDCP实体，所述第二PDCP实体为支持LTE通信协议的PDCP实体。
  12. 一种配置分组数据汇聚协议PDCP的方法，其特征在于，包括：
    通过第一PDCP实体向终端设备发送的配置信息，所述配置信息用于指示从第一PDCP实体切换至第二PDCP实体，所述第一PDCP实体和所述第二PDCP实体为不同通信协议版本下的PDCP实体；
    在发送所述配置信息之后，保持所述第一PDCP实体，及建立所述第二PDCP实体；
    通过所述第一PDCP实体和所述第二PDCP实体接收所述终端设备发送的针对所述配置信息的响应消息；
    在接收到所述响应消息之后，释放所述第一PDCP实体。
  13. 根据权利要求12所述的方法，其特征在于，在接收所述响应消息之前，所述方法还包括：
    通过所述第一PDCP实体和所述第二PDCP实体接收所述终端设备发送数据。
  14. 根据权利要求12或13所述的方法，其特征在于，所述方法还包括：
    通过所述第二PDCP实体进行数据收发。
  15. 根据权利要求12至14中任一项所述的方法，其特征在于，所述配置信息为无线资源控制RRC连接重配置信息。
  16. 根据权利要求12至15中任一项所述的方法，其特征在于，所述第一PDCP实体为支持长期演进LTE通信协议的PDCP实体，所述第二PDCP实体为支持新无线NR通信协议的PDCP实体；或者
    所述第一PDCP实体为支持NR通信协议的PDCP实体，所述第二PDCP实体为支持LTE通信协议的PDCP实体。
  17. 一种终端设备，其特征在于，包括：
    收发单元，用于通过第一分组数据汇聚协议PDCP实体接收网络设备发送的配置信息，所述配置信息用于指示从第一PDCP实体切换至第二PDCP实体，所述第一PDCP实体和所述第二PDCP实体为不同通信协议版本下的PDCP实体；
    所述收发单元，还用于通过所述第一PDCP实体向所述网络设备发送针对所述配置信息的响应消息；
    处理单元，用于在所述收发单元发送所述响应消息之后，根据所述配置信息将PDCP发送实体和PDCP接收实体从所述第一PDCP实体切换至所述第二PDCP实体。
  18. 根据权利要求17所述的终端设备，其特征在于，所述处理单元具体用于：
    根据所述配置信息，释放针对所述PDCP发送实体和所述PDCP接收实体的所述第一PDCP实体，建立针对所述PDCP发送实体和所述PDCP接收实体的所述第二PDCP实体。
  19. 根据权利要求17或18所述的终端设备，其特征在于，所述收发单元，还用于通过所述第二PDCP实体进行数据收发。
  20. 根据权利要求17至19中任一项所述的终端设备，其特征在于，所述配置信息为无线资源控制RRC连接重配置信息。
  21. 根据权利要求17至20中任一项所述的终端设备，其特征在于，所 述第一PDCP实体为支持长期演进LTE通信协议的PDCP实体，所述第二PDCP实体为支持新无线NR通信协议的PDCP实体；或者
    所述第一PDCP实体为支持NR通信协议的PDCP实体，所述第二PDCP实体为支持LTE通信协议的PDCP实体。
  22. 一种网络设备，其特征在于，包括：
    收发单元，用于通过第一分组数据汇聚协议PDCP实体向终端设备发送配置信息，所述配置信息用于指示所述终端设备从第一PDCP实体切换至第二PDCP实体，所述第一PDCP实体和所述第二PDCP实体为不同通信协议版本下的PDCP实体；
    所述收发单元，还用于通过所述第一PDCP实体接收所述终端设备发送的针对所述配置信息的响应消息；
    处理单元，用于在所述收发单元接收到所述响应消息之后，将PDCP发送实体和PDCP接收实体从所述第一PDCP实体切换至所述第二PDCP实体。
  23. 根据权利要求22所述的网络设备，其特征在于，在所述收发单元接收所述响应消息之前，所述收发单元，还用于通过所述第一PDCP实体接收所述终端设备发送的数据。
  24. 根据权利要求22或23所述的网络设备，其特征在于，所述处理单元具体用于：
    释放针对所述PDCP发送实体和所述PDCP接收实体的所述第一PDCP实体，建立针对所述PDCP发送实体和所述PDCP接收实体的所述第二PDCP实体。
  25. 根据权利要求22至24中任一项所述的网络设备，其特征在于，所述收发单元，还用于通过所述第二PDCP实体进行数据收发。
  26. 根据权利要求22至25中任一项所述的网络设备，其特征在于，所述配置信息为无线资源控制RRC连接重配置信息。
  27. 根据权利要求22至26中任一项所述的网络设备，其特征在于，所述第一PDCP实体为支持长期演进LTE通信协议的PDCP实体，所述第二PDCP实体为支持新无线NR通信协议的PDCP实体；或者
    所述第一PDCP实体为支持NR通信协议的PDCP实体，所述第二PDCP实体为支持LTE通信协议的PDCP实体。
  28. 一种网络设备，其特征在于，包括：
    收发单元，用于通过第一分组数据汇聚协议PDCP实体向终端设备发送的配置信息，所述配置信息用于指示从第一PDCP实体切换至第二PDCP实体，所述第一PDCP实体和所述第二PDCP实体为不同通信协议版本下的PDCP实体；
    处理单元，用于在所述收发单元发送所述配置信息之后，保持所述第一PDCP实体，及建立所述第二PDCP实体；
    所述收发单元，还用于通过所述第一PDCP实体和所述第二PDCP实体接收所述终端设备发送的针对所述配置信息的响应消息；
    所述处理单元，还用于在接收到所述响应消息之后，释放所述第一PDCP实体。
  29. 根据权利要求28所述的网络设备，其特征在于，在所述收发单元接收所述响应消息之前，所述收发单元，还用于通过所述第一PDCP实体和所述第二PDCP实体接收所述终端设备发送数据。
  30. 根据权利要求28或29所述的网络设备，其特征在于，所述收发单元，还用于通过所述第二PDCP实体进行数据收发。
  31. 根据权利要求28至30中任一项所述的网络设备，其特征在于，所述配置信息为无线资源控制RRC连接重配置信息。
  32. 根据权利要求28至31中任一项所述的网络设备，其特征在于，所述第一PDCP实体为支持长期演进LTE通信协议的PDCP实体，所述第二PDCP实体为支持新无线NR通信协议的PDCP实体；或者
    所述第一PDCP实体为支持NR通信协议的PDCP实体，所述第二PDCP实体为支持LTE通信协议的PDCP实体。
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