WO2020083086A1 - Pdcp复制功能的确定、指示方法及装置、基站、终端 - Google Patents

Pdcp复制功能的确定、指示方法及装置、基站、终端 Download PDF

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Publication number
WO2020083086A1
WO2020083086A1 PCT/CN2019/111610 CN2019111610W WO2020083086A1 WO 2020083086 A1 WO2020083086 A1 WO 2020083086A1 CN 2019111610 W CN2019111610 W CN 2019111610W WO 2020083086 A1 WO2020083086 A1 WO 2020083086A1
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data packet
pdcp
priority level
copy function
configuration information
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PCT/CN2019/111610
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English (en)
French (fr)
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王婷婷
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展讯通信（上海）有限公司
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Priority to EP19876376.5A priority Critical patent/EP3873127A4/en
Priority to US17/288,731 priority patent/US12010530B2/en
Publication of WO2020083086A1 publication Critical patent/WO2020083086A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • 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
    • 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]
    • 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
    • H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols

Definitions

  • the invention relates to the technical field of wireless communication, and in particular to a method and device for determining and indicating a PDCP replication function, a base station, and a terminal.
  • the Fifth-Generation Mobile Communications (referred to as 5G) New Radio (NR) introduces packet data convergence protocol (Packet Data Convergence Protocol, PDCP) duplication.
  • 5G Fifth-Generation Mobile Communications
  • NR New Radio
  • PDCP Packet Data Convergence Protocol
  • CA Carrier Aggregation
  • DC Dual Connectivity
  • PDCP replication replicates a PDCP protocol data unit (Protocol Data Unit, PDU for short) into the same two copies by the PDCP layer at the sending end and delivers them to two different radio link control (Radio Link Control, RLC for short) entities , And then through different cells (cells, also known as carriers) for transmission, if the PDCP layer at the receiving end successfully receives two identical PDCP PDUs, delete one and retain one PDCP PDU. That is, the same data packet is copied into the same two and transmitted through two different links (legs, also called branches), thereby improving the reliability of data transmission.
  • PDU Packe Radio Link Control
  • PDCP replication is configured with Radio Bearer (RB) as the granularity.
  • RB Radio Bearer
  • the RB is configured with the PDCP copy function
  • all data packets in the RB are subjected to the PDCP copy operation.
  • RAN1 # 81 Radio Access Network Working Group 1
  • the research objective of the topic NR Industrial Internet of Things was refined and modified .
  • the research objectives include enhancement of data duplication and multi-connectivity technologies. Therefore, enhancing the PDCP replication function and improving the transmission resource utilization efficiency is one of the technologies worth studying.
  • the technical problem solved by the present invention is how to flexibly and effectively configure the PDCP replication function to improve the transmission resource utilization efficiency.
  • an embodiment of the present invention provides a method for determining a PDCP copy function.
  • the determination method includes: receiving PDCP copy function configuration information sent by a network.
  • the PDCP copy function configuration information is when the RB is configured with PDCP copy
  • the priority level of the data packet is determined in any of the following ways: determining the priority level of the data packet according to the QoS flow identifier of the data packet; determining the data according to a high-level instruction of the data packet The priority level of the package.
  • the determining the priority level of the data packet according to the high-level indication of the data packet includes: determining the priority level of the data packet according to the importance identifier or the priority level identifier carried in the data packet, Alternatively, the priority level of the data packet is determined according to the high-level header information of the data packet.
  • the determining, according to the PDCP copy function configuration information, whether each data packet of the RB is configured with the PDCP copy function includes: determining the priority level of each data packet for each data packet of the RB;
  • the PDCP copy function configuration information uses a bitmap to indicate whether the data packet associated with each priority level is configured with the PDCP copy function, it is determined whether the data packet is configured with the PDCP copy function according to the priority level of each data packet .
  • the determining, according to the PDCP copy function configuration information, whether each data packet of the RB is configured with the PDCP copy function includes: determining the priority level of each data packet for each data packet of the RB; When the PDCP copy function configuration information indicates the priority level number of the data packet configured with the PDCP copy function, it is determined whether the data packet is configured with the PDCP copy function according to the determined priority level and the indicated priority level number.
  • the determining, according to the PDCP copy function configuration information, whether each data packet of the RB is configured with the PDCP copy function includes: determining the priority level of each data packet for each data packet of the RB;
  • the PDCP replication function configuration information uses a bitmap to indicate the link used by the data packet associated with each priority level, it is determined according to the priority level of the data packet and the link used by the data packet associated with the priority level Whether the data packet is configured with a PDCP replication function.
  • the method further includes: When the number of links used by the associated data packet is greater than or equal to 1, the link used by the data packet is determined according to the priority level of the data packet and the link used by the data packet associated with the priority level.
  • the determining, according to the PDCP copy function configuration information, whether each data packet of the RB is configured with the PDCP copy function includes: determining the priority level of each data packet for each data packet transmitted by the RB When the PDCP copy function configuration information indicates the number of links used by the PDCP copy function configured by the data packet of each priority level, the data packet is determined according to the priority level of the data packet and the number of the links Whether the PDCP replication function is configured.
  • the priority level of each link for the PDCP replication function corresponding to the RB is predetermined, and it is determined whether each data packet is configured according to the priority level of the data packet and the number of the links
  • the PDCP replication function also includes: when the number of links used by the data packet associated with the priority level is greater than or equal to 1, according to the priority level of the data packet, the number of links, and the priority of each link The rank determines the link used by the packet.
  • an embodiment of the present invention also provides a method for indicating a PDCP replication function, including: determining whether to configure a PDCP replication function for an RB; The number of priority levels; according to the number of priority levels, determine whether the data packet associated with each priority level is configured with the PDCP copy function to obtain PDCP copy function configuration information; send the PDCP copy function configuration information to the user equipment .
  • the priority level of the data packet is determined in any of the following ways: determining the priority level of the data packet according to the QoS flow identifier of the data packet; determining the data according to a high-level instruction of the data packet The priority level of the package.
  • the determining the priority level of the data packet according to the high-level instruction of the data packet includes: determining the priority level of the data packet according to the importance identifier or the priority level identifier carried in the data packet, Alternatively, the priority level of the data packet is determined according to the high-level header information of the data packet.
  • the PDCP copy function configuration information uses a bitmap to indicate whether the data packet associated with each priority level is configured with a PDCP copy function.
  • the indicating method when determining whether the data packet associated with each priority level is configured with the PDCP copy function, the indicating method further includes: determining configuration indication information, where the configuration indication information is used to indicate data configured with the PDCP copy function The number of priority levels of packets, so that the user equipment determines whether the data packet associated with each priority level is configured with a PDCP replication function according to the priority level number, wherein the PDCP replication function configuration information includes the configuration Instructions.
  • the indication method when determining whether the data packet associated with each priority level is configured with the PDCP replication function, the indication method further includes: determining link indication information, where the link indication information is used to indicate each priority level The link used by the associated data packet, wherein the PDCP replication function configuration information includes the link indication information.
  • the priority level of each link for the PDCP replication function corresponding to the RB is predetermined.
  • the indication method It also includes: determining link indication information, which is used to indicate the number of links used by the data packets associated with each priority level, so that the user equipment according to the number of links and each link The priority level of the path determines the link used by the PDCP replication function, where the PDCP replication function configuration information includes the link indication information.
  • an embodiment of the present invention further provides a device for determining a PDCP copy function, including: a receiving module adapted to receive PDCP copy function configuration information sent by a network, the PDCP copy function configuration information is when the RB is configured with During the PDCP copy function, determine whether the data packet associated with each priority level is configured with the PDCP copy function based on the number of priority levels of the RB data packets; the determination module is adapted to configure the PDCP copy function configuration information, Determine whether each data packet of the RB is configured with a PDCP replication function.
  • an embodiment of the present invention further provides an indication device for a PDCP replication function, including: a first determination module, adapted to determine whether to configure PDCP replication for an RB; and a second determination module, adapted to be regarded as the RB
  • a first determination module adapted to determine whether to configure PDCP replication for an RB
  • a second determination module adapted to be regarded as the RB
  • the third determining module is adapted to determine whether the data packet associated with each priority level is configured with the PDCP copy function according to the number of priority levels
  • a sending module is adapted to send the PDCP copy function configuration information to user equipment.
  • an embodiment of the present invention further provides a storage medium on which computer instructions are stored, and when the computer instructions are executed, the steps of the method for determining the PDCP copy function or the method for indicating the PDCP copy function are executed.
  • an embodiment of the present invention further provides a terminal, including a memory and a processor, the memory stores computer instructions executable on the processor, and when the processor runs the computer instructions Perform the steps of the above method.
  • an embodiment of the present invention further provides a base station, including a memory and a processor, where the memory stores computer instructions executable on the processor, and when the processor runs the computer instructions Perform the steps of the above method.
  • An embodiment of the present invention provides a method for determining a PDCP copy function, including: receiving PDCP copy function configuration information sent by a network, where the PDCP copy function configuration information is a data packet based on the RB when the RB is configured with a PDCP copy function
  • the number of priority levels determines whether the data packet associated with each priority level is configured with the PDCP replication function; according to the PDCP replication function configuration information, it is determined whether each data packet of the RB is configured with the PDCP replication function.
  • the PDCP replication function can be configured for the data packet according to the priority of the data packet in each RB, the granularity of the PDCP replication function configuration is refined, so that the network can be effectively based on the priority of the data packet And flexibly instruct the data packet to configure the PDCP replication function. Further, it is beneficial for the network to configure the PDCP replication function for some data packets in the RB according to the existing transmission resources, radio link transmission quality, and other related factors, which helps to improve the transmission resource utilization efficiency.
  • the priority level of the data packet is determined in any of the following ways: determining the priority level of the data packet according to the QoS flow identifier of the data packet; determining the data packet's priority level according to the high-level instruction of the data packet Priority level.
  • a priority ranking method can also be provided for the data packet, which is beneficial to implement the configuration of the PDCP replication function based on the importance / priority of the data packet.
  • FIG. 1 is a schematic flowchart of a method for determining a PDCP copy function according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method for indicating a PDCP copy function according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of signaling interaction in a typical application scenario according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a device for determining a PDCP copy function according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of an indication device for a PDCP copy function according to an embodiment of the present invention.
  • PDCP replication can be divided into carrier aggregation (Carrier Aggregation, CA for short) replication and dual connectivity (Dual Connectivity, DC for short) replication.
  • Carrier Aggregation CA for short
  • DC Dual Connectivity
  • the CA replication function configures the PDCP replication function for each radio bearer (RB) through a Radio Resource Control (RRC) message.
  • RRC Radio Resource Control
  • an additional replication RLC entity may be established for the RB.
  • the RRC message can also indicate the cell group identifier (Identifier) and logical channel identifier (Logical Channel IDentifier, LCID for short) of the primary RLC entity.
  • the RRC message may also set the replication initial state (for example, activated state or inactive state) for the RB.
  • the PDCP replication in the CA scenario corresponds to a multimedia access control (Medium Access Control, MAC for short) entity.
  • the RRC message can also be configured with 2 logical channels (Logical CHannel, LCH for short) (also called configuring 2 RLC entities) and mapped to different carriers respectively.
  • the PDCP replication function needs to be activated after being configured through RRC signaling before it can be used.
  • the activation and deactivation of the PDCP replication function is achieved through the activation / deactivation of MAC control elements (Control Elements, CE for short) of the base station (eg, gNB).
  • the MAC CE contains bitmap information, and each bit in the bitmap information corresponds to a data radio bearer (Data RB, DRB for short) configured with a PDCP replication function. When the bit corresponding to the DRB is 1, it indicates that the DRB is activated, and when the bit corresponding to the DRB is 0, it indicates that the DRB is deactivated.
  • the PDCP layer After the DRB is activated, the PDCP layer performs a copy operation on the data packet, and sends the same two duplicate PDCP protocol data units (Protocol Data Unit (PDU) for short) to the two RLC entities corresponding to the DRB respectively , The two RLC entities will send duplicate PDCP PDUs respectively.
  • PDU Protocol Data Unit
  • the PDCP replication function of the DRB After the PDCP replication function of the DRB is deactivated, the correspondence between the LCH corresponding to the DRB and the carrier no longer exists.
  • the PDCP layer of the UE no longer performs a copy operation on the data packet, and the main RLC entity (that is, the primary LCH (Primary) LCH) sends the data packet.
  • the PDCP entity of the UE will notify the secondary RLC entity to delete the packet cache in the secondary LCH (secondary LCH).
  • the PDCP replication function uses the split bearer as the baseline for the replication operation. Similar to the CA scenario, the PDCP replication function can only be used after RRC signaling configuration and activation.
  • the activation / deactivation of the PDCP replication function is implemented by the base station (for example, gNB) by activating / deactivating MAC CE.
  • the MAC still contains bitmap information, and each bit in the bitmap information corresponds to a DRB configured with a PDCP replication function.
  • the mapping between DRB and bitmap is based on the DRB ID configured with the replication function. When the bit corresponding to the DRB is 1, it indicates that the DRCP copy function of the DRB is activated, and when the bit corresponding to the DRB is 0, it indicates that the PDCP copy function of the DRB is deactivated.
  • the PDCP entity can perform a copy operation on the data packet, and send the copied two copies of the same PDCP protocol data unit (Protocol Data Unit (PDU) for short) to the two RLC entities corresponding to the DRB, respectively ,
  • PDU Protocol Data Unit
  • the two RLC entities will send duplicate PDCP PDUs respectively.
  • the UE After the DRB is deactivated, the UE will re-use the split operation (split operation), and use the initial split operation related parameters to perform the split operation.
  • split operation split operation
  • the configuration information copied by PDCP includes the following:
  • the PDCP copy field is used to indicate whether to configure the PDCP copy function. When this field appears, it indicates that the initial state of the PDCP copy is the active state.
  • the PDCP entity corresponds to RLC1 (for example, LCH1), RLC2 (LCH2), and RLC3 (LCH3).
  • RLC1 for example, LCH1
  • RLC2 for example, LCH2
  • RLC3 LCH3
  • the activation / deactivation MAC is 8 D-fields, which is 1 byte in total.
  • Di indicates that in the RLC entity associated with the same MAC entity, the activated / deactivated state of the DRB configured with the PDCP replication function, i is the DRB configured with the PDCP replication function arranged in ascending order of DRB ID.
  • the value of Di can be 1 or 0. When Di is 1, it means that the PDCP replication function of DRB i is activated, and when Di is 0, it means that the PDCP replication function of DRB i is deactivated.
  • the PDCP replication function is configured with RB as the granularity, that is, once a RB is configured with the PDCP replication function, it means that when the PDCP replication function is activated, all data packets in the RB must be Perform the copy operation.
  • the data packets may have different importance levels.
  • the data packets with higher importance levels may have higher requirements on delay and reliability, and a copy operation is required to ensure their transmission performance.
  • the less important data packets may have lower requirements for delay and reliability, and there is no need to copy operations to ensure their transmission performance. At this time, performing PDCP replication on the less important data packets will waste resources.
  • the RB may be a video service DRB, in which data packets corresponding to a part of video frames (such as video background data packets) have relatively low requirements for delay and reliability; Data packets (for example, data packets with dynamic changes or key feature classes) have relatively high requirements on latency and reliability.
  • the RB may be a drone service DRB.
  • An embodiment of the present invention provides a method for determining a PDCP copy function, including: receiving PDCP copy function configuration information sent by a network, where the PDCP copy function configuration information is a data packet based on the RB when the RB is configured with a PDCP copy function
  • the number of priority levels determines whether the data packet associated with each priority level is configured with the PDCP replication function; according to the PDCP replication function configuration information, it is determined whether each data packet of the RB is configured with the PDCP replication function.
  • the PDCP replication function can be configured for the data packet according to the priority of the data packet in each RB, the granularity of the PDCP replication function configuration is refined, so that the network can be effectively based on the priority of the data packet And flexibly instruct the data packet to configure the PDCP replication function. Further, it is beneficial for the network to configure the PDCP replication function for some data packets in the RB according to the existing transmission resources, radio link transmission quality, and other related factors, which helps to improve the transmission resource utilization efficiency.
  • the network it is beneficial for the network to configure the PDCP replication function for some data packets in the RB according to the existing transmission resources, radio link transmission quality, and other related factors, which helps to improve the transmission resource utilization efficiency.
  • FIG. 1 is a schematic flowchart of a method for determining a PDCP copy function according to an embodiment of the present invention. The determination method may be applied to a user equipment side and executed by a UE.
  • the method for determining the PDCP replication function may include the following steps:
  • Step S101 Receive PDCP copy function configuration information sent by the network, where the PDCP copy function configuration information is determined when the RB is configured with a PDCP copy function, based on the number of priority levels of data packets of the RB. Whether the data packet is configured with PDCP replication function;
  • Step S102 Determine, according to the PDCP copy function configuration information, whether each data packet of the RB is configured with a PDCP copy function.
  • the base station may send the PDCP replication function configuration information to the UE.
  • the base station may send the PDCP replication function configuration information to the UE.
  • an RRC message, MAC CE or physical layer message may be used, which is not limited here.
  • the UE After the UE receives the PDCP copy function configuration information sent by the base station, the UE can obtain from the PDCP copy function configuration information whether the data packet associated with each priority level is configured with the PDCP copy function.
  • the UE may determine the priority level of the data packet of each RB.
  • the UE may determine the priority level of the data packet according to the QoS flow identifier of the data packet. Specifically, the UE and the base station may pre-negotiate QoS flow identifiers corresponding to different priority levels. In a specific implementation, the priority may be divided according to the ascending or descending order of the QoS flow identifier. For example, the smaller the QoS flow identifier, the higher its priority, or the larger the QoS flow identifier, the higher its priority.
  • the UE may then perform classification based on the QoS flow ID (QoS flow ID) of the data packet in the RB. For example, the data packets with the same QoS flow identifier in the RB may be classified into the same priority level. For example, when the data packets in the RB have a total of N QoS flow identifiers, the data packets of the RB may be divided into N priorities.
  • QoS flow ID QoS flow ID
  • the UE may determine the priority level of the data packet according to the high-level indication of the data packet.
  • the upper layer of the data packet may be one or more of an application layer and an Internet Protocol (Internet Protocol, IP for short) layer.
  • the application layer may include, but not limited to, Transmission Control Protocol (TCP), User Datagram Protocol (UDP), Hypertext Transfer Protocol, File Transfer Protocol, File Transfer Protocol, Remote Login Protocol, Simple Mail Transfer Protocol, domain name resolution protocol, simple file transfer protocol, simple network management protocol, and dynamic host configuration protocol correspond to levels.
  • TCP Transmission Control Protocol
  • UDP User Datagram Protocol
  • Hypertext Transfer Protocol File Transfer Protocol
  • File Transfer Protocol File Transfer Protocol
  • Remote Login Protocol Remote Login Protocol
  • Simple Mail Transfer Protocol domain name resolution protocol
  • simple file transfer protocol simple network management protocol
  • dynamic host configuration protocol correspond to levels.
  • the higher layer may indicate the importance or priority of the data packet in the following manner. For example, each data packet is marked with an importance mark or a priority level mark. For another example, the importance / priority of the data packet may be explicitly indicated according to some information in the header of the higher layer, or the importance / priority of the data packet may be implicitly obtained according to the partial information in the header of the higher layer.
  • the PDCP copy function configuration information uses a bitmap to indicate whether the data packet associated with each priority level is configured with the PDCP copy function, then the priority of each data packet of the RB is determined After the level, it can be determined whether the data packet is configured with the PDCP replication function according to the priority level of each data packet.
  • the base station may use a bitmap to indicate whether the data packet of each priority level is configured with the PDCP copy function.
  • Each priority level in the RB corresponds to one bit in the bitmap to indicate whether the data packet of the priority level is configured with the PDCP replication function. For example, 0 means that the priority level does not configure the PDCP copy function. 1 indicates that the priority level is configured with the PDCP replication function. For the activation / deactivation instruction, 0 means to deactivate the PDCP copy function, and 1 means to activate the PDCP copy function.
  • a data packet of an RB can be divided into 3 priority levels, the bit value of the first priority is 1, and the bit value of the second priority is 1, which represents the first and second priority respectively
  • the data packet of is configured with the PDCP copy function; the bit value of the third priority is 0, indicating that the data packet of the third priority is not configured with the PDCP copy function.
  • the PDCP copy function configuration information may be used to indicate the number of priority levels of data packets configured with the PDCP copy function.
  • the UE may determine the data capable of being configured with the PDCP copy function after determining the priority levels of the data packets of the RB The priority level of the packet, and determine whether each data packet is configured with a PDCP replication function according to the priority level and the number of the priority level.
  • the priority levels are 1, 2, and 3.
  • 2 bits are used to indicate the number of priority levels configured with the PDCP copy function.
  • the number of priority levels is 3, it indicates that the data packets of the first 3 priority levels are configured with the PDCP replication function; when the number of priority levels is 2, it indicates that the priority level 2
  • a priority packet is configured with a PDCP copy function; when the number of priority levels is 1, it means that the first priority packet with priority level is configured with a PDCP copy function; when the number of priority levels When it is 0, it means that there is no packet configured with PDCP replication function.
  • the PDCP replication function configuration information may use a bitmap to indicate the leg used by the data packet associated with each priority level.
  • the UE may determine whether the data packet is based on the priority level of each data packet and the number of links used by the data packet associated with the priority level It is equipped with PDCP replication function.
  • the UE may further determine the link used by each data packet.
  • the bitmap corresponding to each priority level is M bits. For each priority level, the corresponding bit corresponds to the link one by one, and the bit value indicates whether the data link of the priority level adopts the corresponding link for data transmission.
  • M 3 a bit value of "0" indicates that the link cannot perform data transmission, and a bit value of "1" indicates that the link can perform data transmission.
  • the priority levels of a certain RB data packet are 1, 2, and 3 respectively, and the LCHs associated with each priority level are LCH1, LCH2, and LCH3, indicating the chain used by the data packet associated with the first priority
  • the channels are LCH1, LCH2, and LCH3; the link used by the data packet associated with the second priority is LCH2, LCH3; the link used by the data packet associated with the third priority is LCH2.
  • the packets used by the first priority and the second priority are more than two, it means that the packets of the first and second priorities are configured with the PDCP replication function, but the packets used by the packets associated with the third priority use only the link 1 is not configured with PDCP replication function.
  • the PDCP replication function configuration information may indicate the number of links used by data packets of each priority level.
  • the UE determines the priority level of each data packet of the RB, it can determine whether the data packet is configured with PDCP according to the priority level of each data packet and the number of links used by the data packets associated with the priority level Copy function. If the number of links used by the data packets associated with the priority level is 1, it means that the data packets of the priority level are not configured with the PDCP replication function; if the number of links used by the data packets associated with the priority level is If it is 2 or more, it means that the data packet of this priority level is configured with the PDCP copy function.
  • the link used by the data packet associated with the priority level is the link used by the PDCP replication function configured for the data packet of the priority level.
  • the link used by the data packet may be determined according to the priority level of the data packet, the number of the links, and the priority level of each link.
  • the UE can determine the link used by the data packet.
  • the number of the links is 0, 1, 2, and 3.
  • 2 bits are used to indicate the number of links that the UE can use.
  • the number of the links is 3, it means that the data packet configured with the PDCP replication function can use the first three links with priority levels; when the number of the links is 2, it means that the PDCP replication function is configured Data packets can use the two links with the highest priority level; when the number of the links is 1, it means that the data packet is not configured with the PDCP replication function, and the link with the priority level 1 can be used for data transmission ;
  • the number of the links is 0, it can indicate reserved bits.
  • the link used by the data packet is a preset link previously negotiated between the base station and the UE.
  • the PDCP replication function configuration information may indicate the number of links used by the data packets of each priority level.
  • the number of the links when the number of the links is 3, it means that the data packet configured with the PDCP replication function can use the 3 links with the highest priority level and the preset link
  • the number of links when the number of links is 2, it means that the data packet configured with the PDCP replication function can use the two links with the highest priority level and the preset link; when the number of links is When 1, it means that the data packet configured with the PDCP replication function can use the first link with the highest priority level and the preset link; when the number of the links is 0, it means that the data packet is not configured with PDCP
  • the preset link can be used.
  • the link used by the data packet is a preset link previously negotiated between the base station and the UE. Then, when the data packet is configured with the PDCP replication function, the UE can determine the number of links used for the data packet of the RB according to the priority level to which the data packet belongs.
  • the specific signaling format may be as shown in Table 6.
  • the priority level of the data packet is 1, the top three links can be used, and the bit value is "11".
  • the priority level of the data packet is 2, the top two links can be used.
  • the bit value is "10", when the priority level of the data packet is 3, the first link can be used, the bit value is "10", when the priority level of the data packet is 4, use the pre Set the link.
  • FIG. 2 is a schematic flowchart of a method for indicating a PDCP copy function according to an embodiment of the present invention, which can be applied to a network side, for example, executed by a base station. As shown in FIG. 2, the indication method may include the following steps:
  • Step S201 Determine whether to configure the PDCP replication function for the RB;
  • Step S202 when configuring the PDCP replication function for the RB, determine the number of priority levels of the data packets of the RB;
  • Step S203 According to the number of priority levels, determine whether the data packet associated with each priority level is configured with a PDCP copy function to obtain PDCP copy function configuration information;
  • Step S204 Send the PDCP replication function configuration information to the user equipment.
  • the base station on the network side may determine whether to configure the PDCP replication function for the RB to determine the information of the PDCP replication field.
  • step S202 if the RB can configure the PDCP replication function, the priority level of the data packet of the RB is determined to obtain the number of priority levels, so that the base station determines which priority level data packet (s) can configure PDCP replication Features.
  • the base station may determine the priority level of the data packet in any of the following ways: (1) determine the priority level of the data packet according to the QoS flow identifier of the data packet; (2) according to the data packet
  • the high-level instruction determines the priority level of the data packet. Specifically, the base station may determine the priority level of the data packet according to the importance identifier or priority level identifier carried in the data packet, or determine the priority of the data packet according to the high-level header information of the data packet grade.
  • the base station may determine whether the data packet associated with each priority level is configured with a PDCP replication function to obtain PDCP replication function configuration information.
  • the PDCP copy function configuration information may use a bitmap to indicate whether the data packet associated with each priority level is configured with the PDCP copy function.
  • the PDCP copy function configuration information may indicate whether the data packet associated with each priority level is configured with the PDCP copy function by indicating the number of priority levels of the data packet configured with the PDCP copy function.
  • a link indication information may also be determined, and the link indication information may be used to indicate the The link used by the data packet, wherein the PDCP replication function configuration information includes the link indication information.
  • the priority level of each link corresponding to the RB for the PDCP replication function is predetermined, when determining whether the data packet associated with each priority level is configured with the PDCP replication function Can also determine another kind of link indication information, which can be used to indicate the number of links used by the PDCP replication function configured by the data packet associated with each priority level, so that the user equipment The number of the links determines the links used by the PDCP copy function, wherein the PDCP copy function configuration information includes the link indication information.
  • the base station may send the PDCP replication function configuration information to the user equipment.
  • steps S201 to S204 can be regarded as the execution steps corresponding to the steps S101 to S102 in the embodiment shown in FIG. 1 above, and the two are mutually complementary in specific implementation principles and logic . Therefore, for the explanation of the nouns involved in this embodiment, reference may be made to the related description of the embodiment shown in FIG. 1, and details are not repeated here.
  • the signaling interaction between the user equipment and the network (for example, NR base station) according to the embodiments of the present invention will be further described below in conjunction with typical application scenarios.
  • the base station 2 may perform operation s1, that is, determine whether to configure the PDCP replication function for the radio bearer, if the radio bearer is configured with the PDCP replication function Then, further determine the priority level of the data packets carried by the radio to determine which one or several priority level data packets are configured with the PDCP replication function according to the priority level, and then obtain the PDCP replication function configuration information.
  • the base station 2 may perform operation s2, that is, send the PDCP replication function configuration information to the user equipment 1.
  • the user equipment 1 may perform operation s3, that is, it may determine whether each data packet of the radio bearer is configured with the PDCP copy function according to the PDCP copy function configuration information.
  • the user equipment 1 may copy each data packet according to the specific information in the PDCP copy function configuration information. If the PDCP replication function configuration information further includes link indication information (for example, the link indication information is used to indicate a leg used by the data packet associated with each priority level, or the link indication information (Used to indicate the number of links used by the PDCP copy function configured by the data packet associated with each priority level), the user equipment 1 may also determine the link used when performing the PDCP copy.
  • link indication information for example, the link indication information is used to indicate a leg used by the data packet associated with each priority level, or the link indication information (Used to indicate the number of links used by the PDCP copy function configured by the data packet associated with each priority level
  • the user equipment 1 may perform operation s4, that is, the user equipment 1 may perform PDCP replication and send data through multiple links.
  • the PDCP replication function can be configured for the priority of each RB data packet, which refines the granularity of the PDCP replication function configuration, so that the network can effectively and efficiently Flexibly instruct the data packet to configure the PDCP replication function, which helps to improve the efficiency of transmission resource utilization.
  • the PDCP copy function determining device 4 (hereinafter referred to as determining device 4) may be applied to the UE side, for example, based on the UE, those skilled in the art understand that the embodiments of the present invention may be used to implement The technical solution of the determination method of the PDCP copy function.
  • the determining device 4 may include a receiving module 41 and a determining module 42.
  • the receiving module 41 is adapted to receive PDCP copy function configuration information sent by the network, where the PDCP copy function configuration information is the priority level of the data packet based on the RB when the RB is configured with the PDCP copy function
  • the quantity determines whether the data packet associated with each priority level is configured with the PDCP replication function
  • the determination module 42 is adapted to determine whether each data packet of the RB is configured with the PDCP replication function according to the PDCP replication function configuration information .
  • the priority level of the data packet may be determined in any of the following ways: determining the priority level of the data packet according to the QoS flow identifier of the data packet; determining the priority level according to the high-level instruction of the data packet Describe the priority level of the packet.
  • the determining the priority level of the data packet according to the high-level instruction of the data packet may be determining the priority level of the data packet according to the importance identifier or the priority level identifier carried in the data packet, or, The priority level of the data packet is determined according to the high-level header information of the data packet.
  • the determination module 42 may include: a first determination sub-module 420, adapted to determine the priority level of each data packet for each data packet of the RB; a second determination sub-module 421, adapted When the PDCP copy function configuration information uses a bitmap to indicate whether the data packet associated with each priority level is configured with the PDCP copy function, it is determined whether the data packet is configured with the PDCP copy function according to the priority level of each data packet .
  • the determination module 42 may include: a third determination sub-module 422, adapted to determine the priority level of each data packet for each data packet of the RB; a fourth determination sub-module 423, adapted When the PDCP copy function configuration information indicates the priority level number of the data packet configured with the PDCP copy function, it is determined whether the data packet is configured with the PDCP copy function according to the determined priority level and the indicated priority level number.
  • the determination module 42 may include: a fifth determination sub-module 424, adapted to determine the priority level of each data packet for each data packet of the RB; a sixth determination sub-module 425, adapted When the PDCP replication function configuration information uses a bitmap to indicate the link used by the data packet associated with each priority level, it is determined according to the priority level of the data packet and the link used by the data packet associated with the priority level Whether the data packet is configured with a PDCP replication function.
  • the determining module 42 may further include :
  • the seventh determining submodule 426 is adapted to use the priority level of the data packet and the use of the data packet associated with the priority level when the number of links used by the data packet associated with the priority level is greater than or equal to 1.
  • the number of links determines the link used by the packet.
  • the determining module 42 may include: an eighth determining sub-module 427, adapted to determine the priority level of each data packet for each data packet transmitted by the RB; a ninth determining sub-module 428, suitable When the PDCP replication function configuration information indicates the number of links used by the PDCP replication function configured by the data packet of each priority level, the data packet is determined according to the priority level of the data packet and the number of the links Whether the PDCP replication function is configured.
  • the priority level of each link for the PDCP replication function corresponding to the RB is predetermined, and whether the data packet is configured is determined according to the priority level of the data packet and the number of the links
  • the determination module 42 may further include: a tenth determination sub-module 429, adapted to, when the number of links used by the data packet associated with the priority level is greater than or equal to 1, according to the data packet ’s
  • the priority level, the number of the links, and the priority level of each link determine the link used by the data packet.
  • FIG. 5 is an indication device of a PDCP copy function according to an embodiment of the present invention.
  • the indication device 5 of the PDCP copy function (for simplicity, hereinafter referred to as the indication device 5) can be applied to the network side, for example, executed by a base station.
  • the embodiments of the present invention may be used to implement the technical method for indicating the PDCP replication function shown in FIGS. 2 and 3 above.
  • the indication device 5 may include a first determination module 51, a second determination module 52, a third determination module 53, and a sending module 54.
  • the first determination module 51 is adapted to determine whether to configure the PDCP copy function for the RB; the second determination module 52 is adapted to determine the data packet of the RB when the PDCP copy function is configured for the RB The number of priority levels; the third determining module 53 is adapted to determine whether the data packet associated with each priority level is configured with a PDCP copy function according to the number of priority levels to obtain PDCP copy function configuration information; The sending module 54 is adapted to send the PDCP copy function configuration information to user equipment.
  • the priority level of the data packet may be determined in any of the following ways: determining the priority level of the data packet according to the QoS flow identifier of the data packet; determining the priority level according to the high-level instruction of the data packet Describe the priority level of the packet.
  • the determining the priority level of the data packet according to the high-level instruction of the data packet may include: determining the priority level of the data packet according to the importance identifier or the priority level identifier carried in the data packet, or , Determine the priority level of the data packet according to the high-level header information of the data packet.
  • the PDCP copy function configuration information may use a bitmap to indicate whether the data packet associated with each priority level is configured with a PDCP copy function.
  • the link used by the data packet is a preset link previously negotiated between the base station and the UE. Then, when the data packet is configured with the PDCP replication function, the UE can determine the number of links used for the data packet of the RB according to the priority level to which the data packet belongs.
  • the specific signaling format may be as shown in Table 6.
  • the priority level of the data packet is 1, the top three links can be used, and the bit value is "11".
  • the priority level of the data packet is 2, the top two links can be used.
  • the bit value is "10", when the priority level of the data packet is 3, the first link can be used, the bit value is "10", when the priority level of the data packet is 4, use the pre Set the link.
  • the third determining module 53 may further include: a first determining submodule 531, adapted to determine link indication information, The link indication information is used to indicate a link used by the data packet associated with each priority level, wherein the PDCP replication function configuration information includes the link indication information.
  • the priority level of each link for the PDCP replication function corresponding to the RB is predetermined.
  • the first The third determination module 53 may further include: a second determination submodule 532, adapted to determine link indication information used to indicate the link used by the PDCP replication function configured by the data packet associated with each priority level The number of links, so that the user equipment determines the link used by the PDCP replication function according to the number of links and the priority level of each link, wherein the PDCP replication function configuration information includes the link indication information.
  • the third determining module 53 may further include: a third determining submodule 533 adapted to determine configuration indication information, the configuration The indication information is used to indicate the number of priority levels of the data packet configured with the PDCP copy function, so that the user equipment determines whether the data packet associated with each priority level is configured with the PDCP copy function according to the number of the priority level, wherein ,
  • the PDCP replication function configuration information includes the configuration indication information.
  • an embodiment of the present invention further discloses a storage medium on which computer instructions are stored, and when the computer instructions are executed, the method and technical solutions in the embodiments shown in FIGS. 1 to 3 described above are executed.
  • the storage medium may include a computer-readable storage medium.
  • the storage medium may include ROM, RAM, magnetic disk, or optical disk.
  • an embodiment of the present invention also discloses a terminal, including a memory and a processor, the memory stores computer instructions that can run on the processor, and the processor executes the above diagram when the computer instructions are executed 1 and the technical solution of the method described in the embodiment shown in FIG. 3.
  • the base station may interact with the user equipment, specifically, the terminal may be user equipment (ie, UE).
  • an embodiment of the present invention also discloses a base station, including a memory and a processor, the memory stores computer instructions that can run on the processor, and the processor executes the above diagram when the computer instructions are executed 2 and the technical solution of the method described in the embodiment shown in FIG. 3.
  • the base station may be an NR base station.

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Abstract

一种PDCP复制功能的确定、指示方法及装置、基站、终端，所述确定方法包括：接收网络发送的PDCP复制功能配置信息，所述PDCP复制功能配置信息是当RB配置有PDCP复制功能时，基于所述RB的数据包的优先级等级数量确定每一优先级等级关联的数据包是否配置有PDCP复制功能得到的；根据所述PDCP复制功能配置信息，确定所述RB的各个数据包是否配置有PDCP复制功能。通过本发明提供的技术方案，可以有效、灵活地为用户设备配置PDCP复制功能，以提高传输资源利用效率。

Description

PDCP复制功能的确定、指示方法及装置、基站、终端
本申请要求于2018年10月26日提交中国专利局、申请号为201811261176.7、发明名称为“PDCP复制功能的确定、指示方法及装置、基站、终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及无线通信技术领域，具体地涉及一种PDCP复制功能的确定、指示方法及装置、基站、终端。
背景技术
第五代移动通信(The Fifth-Generation mobile communications，简称5G)新无线(New Radio，简称NR)中引入了分组数据汇聚协议(Packet Data Convergence Protocol，简称PDCP)复制(duplication)。
现有技术中，PDCP复制分为两种，载波聚合(Carrier Aggregation，简称CA)复制和双连接(Dual Connectivity，简称DC)复制。无论CA复制还是DC复制，其主要目的均是提高超可靠和低延迟通信(Ultra reliable low latency communications，简称URLLC)业务传输的可靠性并减小传输时延。PDCP复制通过在发送端的PDCP层将一个PDCP协议数据单元(Protocol Data Unit，简称PDU)复制成相同的两份并分别下发给两个不同的无线链路控制(Radio Link Control，简称RLC)实体，进而通过不同的小区(cell，亦称载波)进行传输，如果接收端的PDCP层对成功收到两个相同的PDCP PDU，则删除一个并保留一个PDCP PDU。也即，将同一个数据包复制成相同的两个并通过两条不同的链路(leg，也称支路)进行传输， 从而提高数据传输的可靠性。
现有技术中，PDCP复制是以无线承载(Radio Bearer，简称RB)为粒度进行配置的。一旦RB配置了PDCP复制功能，那么在激活PDCP复制功能时，该RB中所有的数据包都进行PDCP复制操作。在无线接入网工作组1(Radio Access Network working group1，简称RAN1)第81次会议(RAN1#81)上，对课题NR工业物联网(Industrial Internet of Things)的研究目标进行了细化和修改。其中的研究目标包括对数据复制(data duplication)和多连接(multi-connectivity)技术进行增强。因而，增强PDCP复制功能，提高传输资源利用效率是十分值得研究的技术之一。
发明内容
本发明解决的技术问题是如何灵活、有效地配置PDCP复制功能，以提高传输资源利用效率。
为解决上述技术问题，本发明实施例提供一种PDCP复制功能的确定方法，所述确定方法包括：接收网络发送的PDCP复制功能配置信息，所述PDCP复制功能配置信息是当RB配置有PDCP复制功能时，基于所述RB的数据包的优先级等级数量确定每一优先级等级关联的数据包是否配置有PDCP复制功能得到的；根据所述PDCP复制功能配置信息，确定所述RB的各个数据包是否配置有PDCP复制功能。
可选的，按照如下任一方式确定所述数据包的优先级等级：根据所述数据包的QoS流标识确定所述数据包的优先级等级；根据所述数据包的高层指示确定所述数据包的优先级等级。
可选的，所述根据所述数据包的高层指示确定所述数据包的优先级等级包括：根据所述数据包携带的重要性标识或优先级等级标识确定所述数据包的优先级等级，或者，根据所述数据包的高层包头信息 确定所述数据包的优先级等级。
可选的，所述根据所述PDCP复制功能配置信息，确定所述RB的各个数据包是否配置有PDCP复制功能包括：对所述RB的各个数据包，确定每一数据包的优先级等级；当所述PDCP复制功能配置信息采用位图方式指示每一优先级等级关联的数据包是否配置有PDCP复制功能时，按照每一数据包的优先级等级确定所述数据包是否配置有PDCP复制功能。
可选的，所述根据所述PDCP复制功能配置信息，确定所述RB的各个数据包是否配置有PDCP复制功能包括：对所述RB的各个数据包，确定每一数据包的优先级等级；当所述PDCP复制功能配置信息指示配置有PDCP复制功能的数据包的优先级等级数量时，根据确定的优先级等级和指示的优先级等级数量确定所述数据包是否配置有PDCP复制功能。
可选的，所述根据所述PDCP复制功能配置信息，确定所述RB的各个数据包是否配置有PDCP复制功能包括：对所述RB的各个数据包，确定每一数据包的优先级等级；当所述PDCP复制功能配置信息采用位图方式指示每一优先级等级关联的数据包使用的链路时，根据数据包的优先级等级以及所述优先级等级关联的数据包使用的链路确定所述数据包是否配置有PDCP复制功能。
可选的，在根据数据包的优先级等级以及所述优先级等级关联的数据包使用的链路的数量确定每一数据包是否配置有PDCP复制功能时，还包括：当所述优先级等级关联的数据包使用的链路的数量大于或等于1时，根据数据包的优先级等级以及所述优先级等级关联的数据包使用的链路，确定所述数据包使用的链路。
可选的，所述根据所述PDCP复制功能配置信息，确定所述RB的各个数据包是否配置有PDCP复制功能包括：对所述RB传输的各个数据包，确定每一数据包的优先级等级；当所述PDCP复制功能配置信息指示每一优先级等级的数据包配置的PDCP复制功能使用的 链路的数量时，根据数据包的优先级等级以及所述链路的数量确定所述数据包是否配置有PDCP复制功能。
可选的，所述RB对应的用于PDCP复制功能的各个链路的优先级等级是预先确定的，在根据数据包的优先级等级以及所述链路的数量确定每一数据包是否配置有PDCP复制功能时，还包括：当所述优先级等级关联的数据包使用的链路的数量大于或等于1时，根据数据包的优先级等级、所述链路的数量以及各个链路的优先级等级确定所述数据包使用的链路。
为解决上述技术问题，本发明实施例还提供一种PDCP复制功能的指示方法，包括：确定是否为RB配置PDCP复制功能；当为所述RB配置PDCP复制功能时，确定所述RB的数据包的优先级等级数量；根据所述优先级等级数量，确定每一优先级等级关联的数据包是否配置有PDCP复制功能，以得到PDCP复制功能配置信息；向用户设备发送所述PDCP复制功能配置信息。
可选的，按照如下任一方式确定所述数据包的优先级等级：根据所述数据包的QoS流标识确定所述数据包的优先级等级；根据所述数据包的高层指示确定所述数据包的优先级等级。
可选的，所述按照所述数据包的高层指示确定所述数据包的优先级等级包括：根据所述数据包携带的重要性标识或优先级等级标识确定所述数据包的优先级等级，或者，根据所述数据包的高层包头信息确定所述数据包的优先级等级。
可选的，所述PDCP复制功能配置信息采用位图方式指示每一优先级等级关联的数据包是否配置有PDCP复制功能。
可选的，在确定每一优先级等级关联的数据包是否配置有PDCP复制功能时，所述指示方法还包括：确定配置指示信息，所述配置指示信息用于指示配置有PDCP复制功能的数据包的优先级等级数量，以使得所述用户设备根据所述优先级等级数量确定每一优先级等级 关联的数据包是否配置有PDCP复制功能，其中，所述PDCP复制功能配置信息包括所述配置指示信息。
可选的，在确定每一优先级等级关联的数据包是否配置有PDCP复制功能时，所述指示方法还包括：确定链路指示信息，所述链路指示信息用于指示每一优先级等级关联的数据包使用的链路，其中，所述PDCP复制功能配置信息包括所述链路指示信息。
可选的，所述RB对应的用于PDCP复制功能的各个链路的优先级等级是预先确定的，在确定每一优先级等级关联的数据包是否配置有PDCP复制功能时，所述指示方法还包括：确定链路指示信息，所述链路指示信息用于指示每一优先级等级关联的数据包使用的链路的数量，以使得所述用户设备根据所述链路的数量和各个链路的优先级等级确定所述PDCP复制功能使用的链路，其中，所述PDCP复制功能配置信息包括所述链路指示信息。
为解决上述技术问题，本发明实施例还提供一种PDCP复制功能的确定装置，包括：接收模块，适于接收网络发送的PDCP复制功能配置信息，所述PDCP复制功能配置信息是当RB配置有PDCP复制功能时，基于所述RB的数据包的优先级等级数量确定每一优先级等级关联的数据包是否配置有PDCP复制功能得到的；确定模块，适于根据所述PDCP复制功能配置信息，确定所述RB的各个数据包是否配置有PDCP复制功能。
为解决上述技术问题，本发明实施例还提供一种PDCP复制功能的指示装置，包括：第一确定模块，适于确定是否为RB配置PDCP复制；第二确定模块，适于当为所述RB配置PDCP复制功能时，确定所述RB的数据包的优先级等级数量；第三确定模块，适于根据所述优先级等级数量，确定每一优先级等级关联的数据包是否配置有PDCP复制功能，以得到PDCP复制功能配置信息；发送模块，适于向用户设备发送所述PDCP复制功能配置信息。
为解决上述技术问题，本发明实施例还提供一种存储介质，其上 存储有计算机指令，所述计算机指令运行时执行上述PDCP复制功能的确定方法或上述PDCP复制功能的指示方法的步骤。
为解决上述技术问题，本发明实施例还提供一种终端，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机指令，所述处理器运行所述计算机指令时执行上述方法的步骤。
为解决上述技术问题，本发明实施例还提供一种基站，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机指令，所述处理器运行所述计算机指令时执行上述方法的步骤。
与现有技术相比，本发明实施例的技术方案具有以下有益效果：
本发明实施例提供一种PDCP复制功能的确定方法，包括：接收网络发送的PDCP复制功能配置信息，所述PDCP复制功能配置信息是当RB配置有PDCP复制功能时，基于所述RB的数据包的优先级等级数量确定每一优先级等级关联的数据包是否配置有PDCP复制功能得到的；根据所述PDCP复制功能配置信息，确定所述RB的各个数据包是否配置有PDCP复制功能。通过本发明实施例提供的技术方案，可以针对每一RB中的数据包的优先级为数据包配置PDCP复制功能，细化了PDCP复制功能配置的粒度，使得网络能够基于数据包的优先级有效且灵活地指示数据包配置PDCP复制功能。进一步，有利于网络根据现有的传输资源、无线链路传输质量以及其他相关因素为RB中的部分数据包配置PDCP复制功能，有助于提高传输资源利用效率。
进一步，按照如下任一方式确定所述数据包的优先级等级：根据所述数据包的QoS流标识确定所述数据包的优先级等级；根据所述数据包的高层指示确定所述数据包的优先级等级。通过本发明实施例提供的技术方案，还可以为数据包提供优先级等级排序方案，有利于实现基于数据包的重要程度/优先级进行PDCP复制功能配置。
附图说明
图1是本发明实施例的一种PDCP复制功能的确定方法的流程示意图；
图2是本发明实施例的一种PDCP复制功能的指示方法的流程示意图；
图3是本发明实施例的一种典型应用场景的信令交互示意图；
图4是本发明实施例的一种PDCP复制功能的确定装置的结构示意图；
图5是本发明实施例的一种PDCP复制功能的指示装置的结构示意图。
具体实施方式
本领域技术人员理解，如背景技术所言，现有技术无法灵活有效地配置PDCP复制功能。
具体而言，在现有技术中，PDCP复制可以分为载波聚合(Carrier Aggregation，简称CA)复制和双连接(Dual Connectivity，简称DC)复制。
在CA场景中，CA复制功能通过无线资源控制(Radio Resource Control，简称RRC)消息为每个无线承载(radio bearer，简称RB)配置PDCP复制功能。用户设备采用PDCP复制时，可以为该RB建立额外的复制RLC实体。RRC消息还可以指示主(Primary)RLC实体的小区组标识(cell group Identifier)和逻辑信道标识(Logical Channel IDentifier，简称LCID)。RRC消息还可以为RB设置复制初始态(例如，激活态或者非激活态)。CA场景下的PDCP复制对应一个多媒体接入控制(Medium Access Control，简称MAC)实体。此外，RRC消息还可以配置2个逻辑信道(Logical CHannel，简称LCH)(也可称之为配置2个RLC实体)并分别映射到不同的载波上。
PDCP复制功能在通过RRC信令配置之后还需要激活才能够使用。PDCP复制功能的激活与去激活是通过基站(例如，gNB)的激活/去激活MAC控制元素(Control Element，简称CE)实现的。MAC CE中包含位图(bitmap)信息，所述位图信息中的每个比特分别对应配置有PDCP复制功能的数据无线承载(Data RB，简称DRB)。当所述DRB对应的比特位为1时，表示激活所述DRB，当所述DRB对应的比特位为0时，表示去激活所述DRB。
在所述DRB被激活之后，PDCP层会对数据包进行复制操作，并将相同的两份复制的PDCP协议数据单元(Protocol Data Unit，简称PDU)分别发送至所述DRB对应的两个RLC实体，这两个RLC实体将会分别发送复制的PDCP PDU。
在所述DRB的PDCP复制功能被去激活之后，所述DRB对应的LCH与载波之间的对应关系不复存在。UE的PDCP层不再对数据包进行复制操作，并且由主RLC实体(即主LCH(Primary LCH))发送该数据包。UE的PDCP实体会通知辅RLC实体删除辅LCH(secondary LCH)中的数据包缓存。
在DC场景中，PDCP复制功能以分流承载(split bearer)为基线进行复制操作。与CA场景类似，PDCP复制功能也需要在RRC信令配置并进行激活之后才能够使用。PDCP复制功能的激活/去激活是基站(例如，gNB)通过激活/去激活MAC CE实现的。MAC CE中仍包含位图信息，所述位图信息中的每个比特分别对应配置有PDCP复制功能的DRB。DRB与位图之间的映射是基于配置有复制功能的DRB ID完成的。当所述DRB对应的比特位为1时，表示激活所述DRB的PDCP复制功能，当所述DRB对应的比特位为0时，表示去激活所述DRB的PDCP复制功能。
在所述DRB被激活之后，PDCP实体可以对数据包进行复制操作，并将复制得到的两份相同PDCP协议数据单元(Protocol Data Unit，简称PDU)分别发送至所述DRB对应的两个RLC实体，这两 个RLC实体将会分别发送复制的PDCP PDU。
在所述DRB被去激活之后，UE将重新采用分流操作(split operation)，并采用初始分流操作相关参数进行分流操作。
在NR协议第15(Release 15，简称R15)版本中，对于每一RB，PDCP复制的配置信息包括如下内容：
(1)PDCP复制字段，用于指示是否配置PDCP复制功能，当该字段出现时，表示PDCP复制初始态为激活态。(2)PDCP实体对应RLC1(例如，LCH1)，RLC2(LCH2)，RLC3(LCH3)。(3)每个LCH对应的小区(cell)，该参数仅在CA场景中配置。
现有技术中，在CA和DC两种场景的双链路复制(two-legs duplication)下，激活/去激活MAC CE为8个D字段(D-field)，共1个字节。如表1所示，Di表示在关联同一MAC实体的RLC实体中，配置有PDCP复制功能的DRB i的激活/去激活态，i是配置有PDCP复制功能的DRB按照DRB ID升序排列的。其中，Di的值可以为1或0。Di为1表示激活DRB i的PDCP复制功能，Di为0表示去激活DRB i的PDCP复制功能。
表1
D7 D6 D5 D4 D3 D2 D1 D0
现有技术中，PDCP复制功能是以RB为粒度进行配置的，也即，一旦某个RB配置了PDCP复制功能，就表示当该PDCP复制功能被激活时，该RB中的所有数据包都要进行复制操作。
然而，对于部分RB来说，其中的数据包可能具有不同的重要程度，重要程度较高的数据包可能会对时延和可靠性的要求比较高，需要通过复制操作来保证其传输性能。相对地，重要程度较低的数据包可能对时延和可靠性的要求比较低，不需要通过复制操作来保证其传输性能。此时，对所述重要程度较低的数据包进行PDCP复制反而会浪费资源。
在具体实施中，所述RB可以为视频业务DRB，其中，一部分视频帧对应的数据包(如视频背景类的数据包)对时延和可靠性的要求均比较低；另一部分视频帧对应的数据包(如，动态变化或关键要素类的数据包)对时延和可靠性的要求比较高。或者，所述RB可以为无人机业务DRB，当服务质量(Quality of Service，简称QoS)要求不同的两个或多个QoS流由于需要数据同步进而映射到同一DRB上时，不同QoS流对时延和可靠性等的传输性能指标要求不同，导致同一DRB含有不同重要程度的数据包。
本发明实施例提供一种PDCP复制功能的确定方法，包括：接收网络发送的PDCP复制功能配置信息，所述PDCP复制功能配置信息是当RB配置有PDCP复制功能时，基于所述RB的数据包的优先级等级数量确定每一优先级等级关联的数据包是否配置有PDCP复制功能得到的；根据所述PDCP复制功能配置信息，确定所述RB的各个数据包是否配置有PDCP复制功能。通过本发明实施例提供的技术方案，可以针对每一RB中的数据包的优先级为数据包配置PDCP复制功能，细化了PDCP复制功能配置的粒度，使得网络能够基于数据包的优先级有效且灵活地指示数据包配置PDCP复制功能。进一步，有利于网络根据现有的传输资源、无线链路传输质量以及其他相关因素为RB中的部分数据包配置PDCP复制功能，有助于提高传输资源利用效率。
进一步，有利于网络根据现有的传输资源、无线链路传输质量以及其他相关因素为RB中的部分数据包配置PDCP复制功能，有助于提高传输资源利用效率。
为使本发明的上述目的、特征和有益效果能够更为明显易懂，下面结合附图对本发明的具体实施例做详细的说明。
图1是本发明实施例的一种PDCP复制功能的确定方法的流程示意图，所述确定方法可以应用于用户设备侧，由UE执行。
具体而言，所述PDCP复制功能的确定方法可以包括如下步骤：
步骤S101，接收网络发送的PDCP复制功能配置信息，所述PDCP复制功能配置信息是当RB配置有PDCP复制功能时，基于所述RB的数据包的优先级等级数量确定每一优先级等级关联的数据包是否配置有PDCP复制功能得到的；
步骤S102，根据所述PDCP复制功能配置信息，确定所述RB的各个数据包是否配置有PDCP复制功能。
更具体而言，在步骤S101中，网络侧基站(例如，NR gNB)可以首先确定是否为RB配置PDCP复制功能，如果为所述RB配置PDCP复制功能，那么将确定该RB的数据包的优先级等级以及每一等级的数量。例如，该RB的数据包有N个，其中N1个数据包的优先级为第一等级，N2个数据包的优先级等级为第二等级，N3个数据包的优先级等级为第三等级，且N＝N1+N2+N3，N、N1、N2、N3为正整数。其次，基站可以进一步确定为哪个或哪些优先级等级关联的数据包配置PDCP复制功能，从而得到PDCP复制功能配置信息。
之后，基站可以将所述PDCP复制功能配置信息发送至UE。发送所述PDCP复制功能配置信息时，可以采用RRC消息、MAC CE或者物理层消息，这里不做限定。
在UE接收到基站发送的PDCP复制功能配置信息之后，UE可以从所述PDCP复制功能配置信息中得到各个优先级等级关联的数据包是否配置有PDCP复制功能。
在具体实施中，UE可以确定每一RB的数据包的优先级等级。
作为一个非限制性的例子，UE可以根据数据包的QoS流标识确定该数据包的优先级等级。具体而言，UE和基站可以预先协商不同优先级等级对应的QoS流标识。在具体实施中，可以按照QoS流标识升序或降序划分优先级。例如，QoS流标识越小，其优先级越高，或者，QoS流标识越大，其优先级越高。
之后UE可以基于所述RB中数据包的QoS流标识(QoS flow ID) 进行分类。例如，可以将该RB内具有相同QoS流标识的数据包划分为同一优先级等级。例如，当RB中的数据包总共有N种QoS流标识时，可以将该RB的数据包划分成N个优先级。
作为又一个非限制性的例子，UE可以根据数据包的高层指示确定所述数据包的优先级等级。其中，所述数据包的高层可以为应用层、互联网协议(Internet Protocol，简称IP)层中的一个或几个。所述应用层可以包括但不限于传输控制协议(Transmission Control Protocol，简称TCP)、用户数据报协议(User Datagram Protocol，简称UDP)、超文本传输协议、文件传送协议、远程登录协议、简单邮件传送协议、域名解析协议、简单文件传送协议、简单网络管理协议、动态主机配置协议对应层级。
当UE根据数据包的高层指示确定所述数据包的优先级等级时，高层可以通过以下方式指示数据包的重要程度或优先级。例如，每个数据包标示有重要性标识或优先级等级标识。又例如，可以根据高层包头中的部分信息显示地指示该数据包的重要程度/优先级，或者根据高层包头中的部分信息隐式得到该数据包的重要程度/优先级。
在具体实施中，如果所述PDCP复制功能配置信息采用位图(bitmap)方式指示每一优先级等级关联的数据包是否配置有PDCP复制功能，那么在确定所述RB的各个数据包的优先级等级之后，可以按照每一数据包的优先级等级确定所述数据包是否配置有PDCP复制功能。
具体而言，当通过PDCP复制字段指示RB配置有PDCP复制功能时，基站可以采用位图方式指示每一优先级等级的数据包是否配置了PDCP复制功能。
该RB中每一优先级等级分别对应位图中的1个比特，以指示该优先级等级的数据包是否配置了PDCP复制功能。例如0表示该优先级等级不配置PDCP复制功能。1表示该优先级等级配置PDCP复制功能。对于激活/去激活指令而言，0表示去激活PDCP复制功能， 1表示激活PDCP复制功能。
如表2所示，某个RB的数据包可以划分为3个优先级等级，第1优先级的比特值为1，第2优先级的比特值为1，分别表示第1和第2优先级的数据包配置有PDCP复制功能；第3优先级的比特值为0，表示第3优先级的数据包未配置有PDCP复制功能。
表2
优先级等级 1 2 3
位图比特值 1 1 0
作为一个变化例，所述PDCP复制功能配置信息可以用于指示配置有PDCP复制功能的数据包的优先级等级数量。当所述PDCP复制功能配置信息指示配置有PDCP复制功能的数据包的优先级等级数量时，UE可以在确定所述RB的各个数据包的优先级等级之后，确定能够配置有PDCP复制功能的数据包的优先级等级，并根据所述优先级等级和所述优先级等级数量确定各个数据包是否配置有PDCP复制功能。
例如，所述优先级等级为1、2、3，在此情况下，如表3所示，采用2比特表示配置有PDCP复制功能的优先级等级数量。当所述优先级等级数量为3时，表示优先级等级在前的3个优先级的数据包配置有PDCP复制功能；当所述优先级等级数量为2时，表示优先级等级在前的2个优先级的数据包配置有PDCP复制功能；当所述优先级等级数量为1时，表示优先级等级在前的1个优先级的数据包配置有PDCP复制功能；当所述优先级等级数量为0时，表示没有数据包配置有PDCP复制功能。
表3
Figure PCTCN2019111610-appb-000001
作为又一个变化例，所述PDCP复制功能配置信息可以采用位图方式指示每一优先级等级关联的数据包使用的链路(leg)。此时，UE可以在确定所述RB的各个数据包的优先级等级之后，根据各个数据包的优先级等级以及所述优先级等级关联的数据包使用的链路的数量确定所述数据包是否配置有PDCP复制功能。
具体实施中，当所述位图信息指示的链路的数量为1时，可以表示该优先级等级的数据包未配置有PDCP复制功能。当所述位图信息指示的链路的数量为2个以上时，可以表示该优先级等级的数据包配置有PDCP复制功能。进一步，由于所述位图信息指示了各个优先级等级的数据包使用的链路，因而UE还可以进一步确定每一数据包使用的链路。
具体而言，对于多连接PDCP复制场景，即一个RB关联2个以上链路(例如，关联2个以上LCH或RLC实体)时，可以针对每一优先级等级的数据包分别指示其使用哪几个链路。假设该RB关联M个链路，那么每一优先级等级对应的位图为M比特。对于每一优先级等级而言，其对应的比特与链路一一对应，比特值指示对于该优先级等级的数据包是否采用与之对应的链路进行数据传输。
表4
Figure PCTCN2019111610-appb-000002
如表4所示，M＝3，比特值为“0”表示该链路不可以进行数据传输，比特值为“1”表示该链路可以进行数据传输。某个RB的数据包的优先级等级分别为1、2、3共3个等级，且各个优先级等级关 联的LCH均为LCH1、LCH2、LCH3，表示第1优先级关联的数据包使用的链路为LCH1、LCH2、LCH3；第2优先级关联的数据包使用的链路为LCH2、LCH3；第3优先级关联的数据包使用的链路为LCH2。由于第1优先级和第2优先级使用的链路为2个以上，表示第1和第2优先级的数据包配置有PDCP复制功能，但第3优先级关联的数据包使用的链路仅1个，未配置有PDCP复制功能。
作为再一个变化例，所述PDCP复制功能配置信息可以指示每一优先级等级的数据包使用的链路的数量。在UE确定所述RB的各个数据包的优先级等级之后，可以根据各个数据包的优先级等级以及所述优先级等级关联的数据包使用的链路的数量确定所述数据包是否配置有PDCP复制功能。如果所述优先级等级关联的数据包使用的链路的数量为1，表示该优先级等级的数据包未配置有PDCP复制功能；如果所述优先级等级关联的数据包使用的链路的数量为2以上，表示该优先级等级的数据包配置有PDCP复制功能。其中，所述优先级等级关联的数据包使用的链路即为该优先级等级的数据包配置的PDCP复制功能使用的链路。
具体实施中，如果所述RB对应的用于PDCP复制功能的各个链路的优先级等级是预先确定的，那么当所述优先级等级关联的数据包使用的链路的数量大于或等于1时，可以根据数据包的优先级等级、所述链路的数量以及各个链路的优先级等级确定所述数据包使用的链路。
具体而言，如果所述RB对应的用于PDCP复制功能的各个链路的优先级等级是预先确定的，那么当所述优先级等级关联的数据包使用的链路的数量大于或等于1时，根据数据包的优先级等级、所述链路的数量以及各个链路的优先级等级，UE可以确定所述数据包使用的链路。
例如，所述链路的数量为0、1、2、3。在此情况下，如表5所示，采用2比特表示UE能够使用的链路的数量。当所述链路的数量 为3时，表示配置有PDCP复制功能的数据包可以使用优先级等级在前的3个链路；当所述链路的数量为2时，表示配置有PDCP复制功能的数据包可以使用优先级等级在前的2个链路；当所述链路的数量为1时，表示数据包未配置有PDCP复制功能，可以使用优先级等级为1的链路进行数据传输；当所述链路的数量为0时，可以表示预留位。
本领域技术人员理解，当数据包未配置有PDCP复制功能时，该数据包采用的链路是基站与UE事先协商的预设链路。此时，所述PDCP复制功能配置信息可以指示每一优先级等级的数据包使用的链路的数量。仍以表5为例，在此情况下，当所述链路的数量为3时，表示配置有PDCP复制功能的数据包可以使用优先级等级在前的3个链路以及所述预设链路；当所述链路的数量为2时，表示配置有PDCP复制功能的数据包可以使用优先级等级在前的2个链路以及所述预设链路；当所述链路的数量为1时，表示配置有PDCP复制功能的数据包可以使用优先级等级在前的1个链路以及所述预设链路；当所述链路的数量为0时，表示数据包未配置有PDCP复制功能，可以使用所述预设链路。
表5
Figure PCTCN2019111610-appb-000003
具体而言，假设未配置PDCP复制功能时，数据包采用的链路是基站与UE事先协商的预设链路。那么当数据包配置有PDCP复制功能时，UE对于RB的数据包可以根据数据包所属优先级等级确定使用的链路的数量。具体信令的格式可以如表6所示。当数据包的优先级等级为1时，可以使用排序在前的3个链路，比特值为“11”，当数据包的优先级等级为2时，可以使用排序在前的2个链路，比特值为“10”，当数据包的优先级等级为3时，可以使用排序在前的1个链路，比特值为“10”，当数据包的优先级等级为4时，使用预设 链路。
表6
Figure PCTCN2019111610-appb-000004
图2是本发明实施例的一种PDCP复制功能的指示方法的流程示意图，可以应用于网络侧，例如，由基站执行。如图2所示，所述指示方法可以包括以下步骤：
步骤S201，确定是否为RB配置PDCP复制功能；
步骤S202，当为所述RB配置PDCP复制功能时，确定所述RB的数据包的优先级等级数量；
步骤S203，根据所述优先级等级数量，确定每一优先级等级关联的数据包是否配置有PDCP复制功能，以得到PDCP复制功能配置信息；
步骤S204，向用户设备发送所述PDCP复制功能配置信息。
具体而言，在步骤S201中，网络侧的基站可以确定是否为RB配置PDCP复制功能，以确定PDCP复制字段的信息。
在步骤S202中，如果所述RB能够配置PDCP复制功能，那么确定该RB的数据包的优先级等级，以得到优先级等级数量，以便基站确定哪个或哪些优先级等级的数据包能够配置PDCP复制功能。
其中，基站可以按照如下任一方式确定所述数据包的优先级等级：(1)根据所述数据包的QoS流标识确定所述数据包的优先级等级；(2)根据所述数据包的高层指示确定所述数据包的优先级等级。具体而言，基站可以根据所述数据包携带的重要性标识或优先级等级标识确定所述数据包的优先级等级，或者，根据所述数据包的高层包头信息确定所述数据包的优先级等级。
在步骤S203中，基站可以确定每一优先级等级关联的数据包是否配置有PDCP复制功能，以得到PDCP复制功能配置信息。
作为一个非限制性的例子，所述PDCP复制功能配置信息可以采用位图方式指示每一优先级等级关联的数据包是否配置有PDCP复制功能。
作为又一个非限制性的例子，在确定每一优先级等级关联的数据包是否配置有PDCP复制功能时，还可以包括：确定配置指示信息，所述配置指示信息用于指示配置有PDCP复制功能的数据包的优先级等级数量，以使得所述用户设备根据所述优先级等级数量确定每一优先级等级关联的数据包是否配置有PDCP复制功能，其中，所述PDCP复制功能配置信息包括所述配置指示信息。此时，所述PDCP复制功能配置信息可以通过指示配置有PDCP复制功能的数据包的优先级等级数量来指示每一优先级等级关联的数据包是否配置有PDCP复制功能。
具体实施中，在确定每一优先级等级关联的数据包是否配置有PDCP复制功能时，还可以确定一种链路指示信息，所述链路指示信息可以用于指示每一优先级等级关联的数据包使用的链路，其中，所述PDCP复制功能配置信息包括所述链路指示信息。
作为另一个非限制性的例子，所述RB对应的用于PDCP复制功能的各个链路的优先级等级是预先确定的，在确定每一优先级等级关联的数据包是否配置有PDCP复制功能时，还可以确定另一种链路指示信息，该链路指示信息可以用于指示每一优先级等级关联的数据包配置的PDCP复制功能使用的链路的数量，以使得所述用户设备根据所述链路的数量确定所述PDCP复制功能使用的链路，其中，所述PDCP复制功能配置信息包括所述链路指示信息。
在步骤S204中，基站可以向用户设备发送所述PDCP复制功能配置信息。
本领域技术人员理解，所述步骤S201至步骤S204可以视为与上述图1所示实施例所述步骤S101至步骤S102相呼应的执行步骤，两者在具体的实现原理和逻辑上是相辅相成的。因而，本实施例中涉及名词的解释可以参考图1所示实施例的相关描述，这里不再赘述。
下面结合典型的应用场景对采用本发明实施例的用户设备和网络(例如，NR基站)之间的信令交互作进一步阐述。
在一个典型的应用场景中，参考图3，在用户设备1与基站2建立连接之后，基站2可以执行操作s1，即确定是否为无线承载配置PDCP复制功能，如果该无线承载配置有PDCP复制功能，那么进一步确定无线承载的数据包的优先级等级，以根据优先级等级确定哪个或哪几个优先级等级的数据包配置PDCP复制功能，进而得到PDCP复制功能配置信息。
之后，基站2可以执行操作s2，即发送所述PDCP复制功能配置信息至用户设备1。
在用户设备1得到所述PDCP复制功能配置信息之后，用户设备1可以执行操作s3，即可以根据所述PDCP复制功能配置信息确定所述无线承载的各个数据包是否配置PDCP复制功能。
具体实施时，用户设备1可以根据所述PDCP复制功能配置信息中的具体信息对各个数据包进行复制。如果PDCP复制功能配置信息中还包括链路指示信息(例如，所述链路指示信息用于指示每一优先级等级关联的数据包使用的链路(leg)，或者，所述链路指示信息用于指示每一优先级等级关联的数据包配置的PDCP复制功能使用的链路的数量)，用户设备1还可以确定进行PDCP复制时使用的链路。
进一步，所述用户设备1在配置了PDCP复制功能之后，可以执行操作s4，即用户设备1可以进行PDCP复制，并通过多条链路发送数据。
关于图3所示的应用场景中的所述用户设备1、所述基站2的工 作原理、工作方式的更多内容，可以参照上述图1和图2中的相关描述，这里不再赘述。
由上，通过本发明实施例提供的技术方案，可以针对每一RB的数据包的优先级配置PDCP复制功能，细化了PDCP复制功能配置的粒度，使得网络能够基于数据包的优先级有效且灵活地指示数据包配置PDCP复制功能，有助于提高传输资源利用效率。
图4是本发明实施例的一种PDCP复制功能的确定装置的结构示意图。所述PDCP复制功能的确定装置4(以下简称确定装置4)可以应用于UE侧，如基于UE执行，本领域技术人员理解，本发明实施例可以用于实施上述图1和图3所示的PDCP复制功能的确定方法技术方案。
具体而言，所述确定装置4可以包括接收模块41和确定模块42。
在具体实施中，所述接收模块41适于接收网络发送的PDCP复制功能配置信息，所述PDCP复制功能配置信息是当RB配置有PDCP复制功能时，基于所述RB的数据包的优先级等级数量确定每一优先级等级关联的数据包是否配置有PDCP复制功能得到的；所述确定模块42适于根据所述PDCP复制功能配置信息，确定所述RB的各个数据包是否配置有PDCP复制功能。
在具体实施中，可以按照如下任一方式确定所述数据包的优先级等级：根据所述数据包的QoS流标识确定所述数据包的优先级等级；根据所述数据包的高层指示确定所述数据包的优先级等级。
其中，所述根据所述数据包的高层指示确定所述数据包的优先级等级可以是根据所述数据包携带的重要性标识或优先级等级标识确定所述数据包的优先级等级，或者，根据所述数据包的高层包头信息确定所述数据包的优先级等级完成的。
在具体实施中，所述确定模块42可以包括：第一确定子模块420，适于对所述RB的各个数据包，确定每一数据包的优先级等级；第二 确定子模块421，适于当所述PDCP复制功能配置信息采用位图方式指示每一优先级等级关联的数据包是否配置有PDCP复制功能时，按照每一数据包的优先级等级确定所述数据包是否配置有PDCP复制功能。
在具体实施中，所述确定模块42可以包括：第三确定子模块422，适于对所述RB的各个数据包，确定每一数据包的优先级等级；第四确定子模块423，适于当所述PDCP复制功能配置信息指示配置有PDCP复制功能的数据包的优先级等级数量时，根据确定的优先级等级和指示的优先级等级数量确定所述数据包是否配置有PDCP复制功能。
在具体实施中，所述确定模块42可以包括：第五确定子模块424，适于对所述RB的各个数据包，确定每一数据包的优先级等级；第六确定子模块425，适于当所述PDCP复制功能配置信息采用位图方式指示每一优先级等级关联的数据包使用的链路时，根据数据包的优先级等级以及所述优先级等级关联的数据包使用的链路确定所述数据包是否配置有PDCP复制功能。
在具体实施中，在根据数据包的优先级等级以及所述优先级等级关联的数据包使用的链路的数量确定每一数据包是否配置有PDCP复制功能时，所述确定模块42还可以包括：第七确定子模块426，适于当所述优先级等级关联的数据包使用的链路的数量大于或等于1时，根据数据包的优先级等级以及所述优先级等级关联的数据包使用的链路的数量，确定所述数据包使用的链路。
在具体实施中，所述确定模块42可以包括：第八确定子模块427，适于对所述RB传输的各个数据包，确定每一数据包的优先级等级；第九确定子模块428，适于当所述PDCP复制功能配置信息指示每一优先级等级的数据包配置的PDCP复制功能使用的链路的数量时，根据数据包的优先级等级以及所述链路的数量确定所述数据包是否配置有PDCP复制功能。
在具体实施中，所述RB对应的用于PDCP复制功能的各个链路的优先级等级是预先确定的，在根据数据包的优先级等级以及所述链路的数量确定所述数据包是否配置有PDCP复制功能时，所述确定模块42还可以包括：第十确定子模块429，适于当所述优先级等级关联的数据包使用的链路的数量大于或等于1时，根据数据包的优先级等级、所述链路的数量以及各个链路的优先级等级确定所述数据包使用的链路。
关于所述确定装置4的工作原理、工作方式的更多内容，可以参照上述图1中的相关描述，这里不再赘述。
图5是本发明实施例的一种PDCP复制功能的指示装置，所述PDCP复制功能的指示装置5(为简便，以下简称为指示装置5)可以应用于网络侧，例如由基站执行。本领域技术人员理解，本发明实施例可以用于实施上述图2和图3所示的PDCP复制功能的指示方法技术方案。
具体而言，所述指示装置5可以包括第一确定模块51、第二确定模块52、第三确定模块53和发送模块54。
在具体实施中，所述第一确定模块51适于确定是否为RB配置PDCP复制功能；所述第二确定模块52适于当为所述RB配置PDCP复制功能时，确定所述RB的数据包的优先级等级数量；所述第三确定模块53适于根据所述优先级等级数量，确定每一优先级等级关联的数据包是否配置有PDCP复制功能，以得到PDCP复制功能配置信息；所述发送模块54适于向用户设备发送所述PDCP复制功能配置信息。
在具体实施中，可以按照如下任一方式确定所述数据包的优先级等级：根据所述数据包的QoS流标识确定所述数据包的优先级等级；根据所述数据包的高层指示确定所述数据包的优先级等级。
其中，所述按照所述数据包的高层指示确定所述数据包的优先级 等级可以包括：根据所述数据包携带的重要性标识或优先级等级标识确定所述数据包的优先级等级，或者，根据所述数据包的高层包头信息确定所述数据包的优先级等级。
在具体实施中，所述PDCP复制功能配置信息可以是采用位图方式指示每一优先级等级关联的数据包是否配置有PDCP复制功能的。
具体而言，假设未配置PDCP复制功能时，数据包采用的链路是基站与UE事先协商的预设链路。那么当数据包配置有PDCP复制功能时，UE对于RB的数据包可以根据数据包所属优先级等级确定使用的链路的数量。具体信令的格式可以如表6所示。当数据包的优先级等级为1时，可以使用排序在前的3个链路，比特值为“11”，当数据包的优先级等级为2时，可以使用排序在前的2个链路，比特值为“10”，当数据包的优先级等级为3时，可以使用排序在前的1个链路，比特值为“10”，当数据包的优先级等级为4时，使用预设链路。
表6
Figure PCTCN2019111610-appb-000005
在具体实施中，在确定每一优先级等级关联的数据包是否配置有PDCP复制功能时，所述第三确定模块53还可以包括：第一确定子模块531，适于确定链路指示信息，所述链路指示信息用于指示每一优先级等级关联的数据包使用的链路，其中，所述PDCP复制功能配置信息包括所述链路指示信息。
在具体实施中，所述RB对应的用于PDCP复制功能的各个链路的优先级等级是预先确定的，在确定每一优先级等级关联的数据包是否配置有PDCP复制功能时，所述第三确定模块53还可以包括：第二确定子模块532，适于确定链路指示信息，所述链路指示信息用于指示每一优先级等级关联的数据包配置的PDCP复制功能使用的链 路的数量，以使得所述用户设备根据所述链路的数量和各个链路的优先级等级确定所述PDCP复制功能使用的链路，其中，所述PDCP复制功能配置信息包括所述链路指示信息。
在具体实施中，在确定每一优先级等级关联的数据包是否配置有PDCP复制功能时，第三确定模块53还可以包括：第三确定子模块533，适于确定配置指示信息，所述配置指示信息用于指示配置有PDCP复制功能的数据包的优先级等级数量，以使得所述用户设备根据所述优先级等级数量确定每一优先级等级关联的数据包是否配置有PDCP复制功能，其中，所述PDCP复制功能配置信息包括所述配置指示信息。
关于所述指示装置5的工作原理、工作方式的更多内容，可以参照上述图2和图3中的相关描述，这里不再赘述。
进一步地，本发明实施例还公开一种存储介质，其上存储有计算机指令，所述计算机指令运行时执行上述图1至图3所示实施例中所述方法技术方案。优选地，所述存储介质可以包括计算机可读存储介质。所述存储介质可以包括ROM、RAM、磁盘或光盘等。
进一步地，本发明实施例还公开一种终端，包括存储器和处理器，所述存储器上存储有能够在所述处理器上运行的计算机指令，所述处理器运行所述计算机指令时执行上述图1和图3所示实施例中所述方法技术方案。优选地，所述基站可以与所述用户设备进行交互，具体而言，所述终端可以为用户设备(也即UE)。
进一步地，本发明实施例还公开一种基站，包括存储器和处理器，所述存储器上存储有能够在所述处理器上运行的计算机指令，所述处理器运行所述计算机指令时执行上述图2和图3所示实施例中所述方法技术方案。具体而言，所述基站可以为NR基站。
虽然本发明披露如上，但本发明并非限定于此。任何本领域技术人员，在不脱离本发明的精神和范围内，均可作各种更动与修改，因 此本发明的保护范围应当以权利要求所限定的范围为准。

Claims (21)

  1. 一种PDCP复制功能的确定方法，其特征在于，包括：
    接收网络发送的PDCP复制功能配置信息，所述PDCP复制功能配置信息是当RB配置有PDCP复制功能时，基于所述RB的数据包的优先级等级数量确定每一优先级等级关联的数据包是否配置有PDCP复制功能得到的；
    根据所述PDCP复制功能配置信息，确定所述RB的各个数据包是否配置有PDCP复制功能。
  2. 根据权利要求1所述的确定方法，其特征在于，按照如下任一方式确定所述数据包的优先级等级：
    根据所述数据包的QoS流标识确定所述数据包的优先级等级；
    根据所述数据包的高层指示确定所述数据包的优先级等级。
  3. 根据权利要求2所述的确定方法，其特征在于，所述根据所述数据包的高层指示确定所述数据包的优先级等级包括：
    根据所述数据包携带的重要性标识或优先级等级标识确定所述数据包的优先级等级，或者，根据所述数据包的高层包头信息确定所述数据包的优先级等级。
  4. 根据权利要求1所述的确定方法，其特征在于，所述根据所述PDCP复制功能配置信息，确定所述RB的各个数据包是否配置有PDCP复制功能包括：
    对所述RB的各个数据包，确定每一数据包的优先级等级；
    当所述PDCP复制功能配置信息采用位图方式指示每一优先级等级关联的数据包是否配置有PDCP复制功能时，按照每一数据包的优先级等级确定所述数据包是否配置有PDCP复制功能。
  5. 根据权利要求1所述的确定方法，其特征在于，所述根据所述PDCP 复制功能配置信息，确定所述RB的各个数据包是否配置有PDCP复制功能包括：
    对所述RB的各个数据包，确定每一数据包的优先级等级；
    当所述PDCP复制功能配置信息指示配置有PDCP复制功能的数据包的优先级等级数量时，根据确定的优先级等级和指示的优先级等级数量确定所述数据包是否配置有PDCP复制功能。
  6. 根据权利要求1所述的确定方法，其特征在于，所述根据所述PDCP复制功能配置信息，确定所述RB的各个数据包是否配置有PDCP复制功能包括：
    对所述RB的各个数据包，确定每一数据包的优先级等级；
    当所述PDCP复制功能配置信息采用位图方式指示每一优先级等级关联的数据包使用的链路时，根据数据包的优先级等级以及所述优先级等级关联的数据包使用的链路确定所述数据包是否配置有PDCP复制功能。
  7. 根据权利要求6所述的确定方法，其特征在于，在根据数据包的优先级等级以及所述优先级等级关联的数据包使用链路确定所述数据包是否配置有PDCP复制功能时，还包括：
    当所述优先级等级关联的数据包使用的链路的数量大于或等于1时，根据数据包的优先级等级以及所述优先级等级关联的数据包使用的链路确定所述数据包使用的链路。
  8. 根据权利要求1所述的确定方法，其特征在于，所述根据所述PDCP复制功能配置信息，确定所述RB的各个数据包是否配置有PDCP复制功能包括：
    对所述RB传输的各个数据包，确定每一数据包的优先级等级；
    当所述PDCP复制功能配置信息指示每一优先级等级的数据包配置的PDCP复制功能使用的链路的数量时，根据数据包的优先级 等级以及所述链路的数量确定所述数据包是否配置有PDCP复制功能。
  9. 根据权利要求8所述的确定方法，其特征在于，所述RB对应的用于PDCP复制功能的各个链路的优先级等级是预先确定的，在根据数据包的优先级等级以及所述链路的数量确定所述数据包是否配置有PDCP复制功能时，还包括：
    当所述优先级等级关联的数据包使用的链路的数量大于或等于1时，根据数据包的优先级等级、所述链路的数量以及各个链路的优先级等级确定所述数据包使用的链路。
  10. 一种PDCP复制功能的指示方法，其特征在于，包括：
    确定是否为RB配置PDCP复制功能；
    当为所述RB配置PDCP复制功能时，确定所述RB的数据包的优先级等级数量；
    根据所述优先级等级数量，确定每一优先级等级关联的数据包是否配置有PDCP复制功能，以得到PDCP复制功能配置信息；
    向用户设备发送所述PDCP复制功能配置信息。
  11. 根据权利要求10所述的指示方法，其特征在于，按照如下任一方式确定所述数据包的优先级等级：
    根据所述数据包的QoS流标识确定所述数据包的优先级等级；
    根据所述数据包的高层指示确定所述数据包的优先级等级。
  12. 根据权利要求11所述的指示方法，其特征在于，所述按照所述数据包的高层指示确定所述数据包的优先级等级包括：
    根据所述数据包携带的重要性标识或优先级等级标识确定所述数据包的优先级等级，或者，根据所述数据包的高层包头信息确定所述数据包的优先级等级。
  13. 根据权利要求10所述的指示方法，其特征在于，所述PDCP复制功能配置信息采用位图方式指示每一优先级等级关联的数据包是否配置有PDCP复制功能。
  14. 根据权利要求10所述的指示方法，其特征在于，在确定每一优先级等级关联的数据包是否配置有PDCP复制功能时，还包括：
    确定配置指示信息，所述配置指示信息用于指示配置有PDCP复制功能的数据包的优先级等级数量，以使得所述用户设备根据所述优先级等级数量确定每一优先级等级关联的数据包是否配置有PDCP复制功能，其中，所述PDCP复制功能配置信息包括所述配置指示信息。
  15. 根据权利要求10所述的指示方法，其特征在于，在确定每一优先级等级关联的数据包是否配置有PDCP复制功能时，还包括：
    确定链路指示信息，所述链路指示信息用于指示每一优先级等级关联的数据包配置的PDCP复制功能使用的链路，其中，所述PDCP复制功能配置信息包括所述链路指示信息。
  16. 根据权利要求10所述的指示方法，其特征在于，所述RB对应的用于PDCP复制功能的各个链路的优先级等级是预先确定的，在确定每一优先级等级关联的数据包是否配置有PDCP复制功能时，还包括：
    确定链路指示信息，所述链路指示信息用于指示每一优先级等级关联的数据包使用的链路的数量，以使得所述用户设备根据所述链路的数量和各个链路的优先级等级确定所述PDCP复制功能使用的链路，其中，所述PDCP复制功能配置信息包括所述链路指示信息。
  17. 一种PDCP复制功能的确定装置，其特征在于，包括：
    接收模块，适于接收网络发送的PDCP复制功能配置信息，所述PDCP复制功能配置信息是当RB配置有PDCP复制功能时，基于 所述RB的数据包的优先级等级数量确定每一优先级等级关联的数据包是否配置有PDCP复制功能得到的；
    确定模块，适于根据所述PDCP复制功能配置信息，确定所述RB的各个数据包是否配置有PDCP复制功能。
  18. 一种PDCP复制功能的指示装置，其特征在于，包括：
    第一确定模块，适于确定是否为RB配置PDCP复制；
    第二确定模块，适于当为所述RB配置PDCP复制功能时，确定所述RB的数据包的优先级等级数量；
    第三确定模块，适于根据所述优先级等级数量，确定每一优先级等级关联的数据包是否配置有PDCP复制功能，以得到PDCP复制功能配置信息；
    发送模块，适于向用户设备发送所述PDCP复制功能配置信息。
  19. 一种存储介质，其上存储有计算机指令，其特征在于，所述计算机指令运行时执行权利要求1至10任一项或权利要求11至17任一项所述的方法的步骤。
  20. 一种终端，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机指令，其特征在于，所述处理器运行所述计算机指令时执行权利要求1至10中任一项所述的方法的步骤。
  21. 一种基站，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机指令，其特征在于，所述处理器运行所述计算机指令时执行权利要求11至17任一项所述的方法的步骤。
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