WO2020147155A1 - Procédé de duplication de données, dispositif terminal et support d'informations - Google Patents

Procédé de duplication de données, dispositif terminal et support d'informations Download PDF

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Publication number
WO2020147155A1
WO2020147155A1 PCT/CN2019/074513 CN2019074513W WO2020147155A1 WO 2020147155 A1 WO2020147155 A1 WO 2020147155A1 CN 2019074513 W CN2019074513 W CN 2019074513W WO 2020147155 A1 WO2020147155 A1 WO 2020147155A1
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Prior art keywords
data
information
terminal device
data copy
copy
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English (en)
Chinese (zh)
Inventor
唐海
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN201980060361.6A priority Critical patent/CN112715044B/zh
Publication of WO2020147155A1 publication Critical patent/WO2020147155A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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 present invention relates to the field of wireless communication technology, and in particular to a data replication method, terminal equipment and storage medium.
  • Enhanced Mobile Broadband eMBB
  • Massive Machine Type Communication MMTC
  • ultra-reliable Low latency communication Ultra reliability and low latency communication
  • embodiments of the present invention provide a data replication method, terminal device, and storage medium, which improve the performance of data replication and transmission.
  • an embodiment of the present invention provides a data replication method.
  • the method includes a terminal device determining first data replication information based on first information; the first information is information related to resources and/or services, and The first data copy information is used to indicate the data copy mode.
  • an embodiment of the present invention provides a terminal device, the terminal device includes: a processing unit configured to determine first data replication information based on first information; the first information is resource and/or service related Information, the first data copy information is used to indicate a data copy mode.
  • an embodiment of the present invention provides a terminal device, including a processor and a memory for storing a computer program that can run on the processor, wherein the processor is used to execute the above-mentioned terminal when the computer program is running. The steps of the data copy method performed by the device.
  • an embodiment of the present invention provides a storage medium that stores an executable program, and when the executable program is executed by a processor, the above-mentioned data copy method executed by the terminal device is implemented.
  • the terminal device determines the first data replication information indicating the data replication transmission mode according to the first information, instead of determining the data replication mode according to the instructions of the network device. Since the terminal device can more accurately determine the channel quality in the first information, the effectiveness of the data copy manner determined by the terminal device according to the first information is improved. Compared with determining the data replication mode according to the instructions of the network device, the terminal device autonomously determines the data replication mode to increase the flexibility of data replication, thereby improving the performance of data replication.
  • Figure 1 is a schematic diagram of the architecture of data replication and transmission
  • FIG. 2 is a schematic diagram of the composition structure of a communication system according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of an optional processing flow of a data copy method applied to a terminal device according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of another optional processing flow of the data copy method applied to the terminal device according to the embodiment of the present invention.
  • FIG. 5 is a schematic diagram of yet another optional processing flow of the data copying method according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a composition structure of a terminal device according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of the hardware composition structure of an electronic device according to an embodiment of the present invention.
  • the schematic diagram of the data replication transmission architecture is shown in Figure 1.
  • the dual connectivity (Dual Connectivity, DC) data replication transmission mode is shown in Figure 1 as the (Data Resource Bearer, DRB) ID2 between the terminal equipment and the base station.
  • the architecture of split bearer is shown in Figure 1.
  • the Packet Data Convergence Protocol (PDCP) entity associates two different radio link control (Radio Link Control, RLC) entities; one entity corresponds to a primary cell group (MCG), and one entity Corresponds to a secondary cell group (Secondary Cell Group, SCG). Regarding the uplink transmission data and the downlink transmission data, the PDCP entity copies the PDCP Protocol Data Unit (PDU) into the same two copies.
  • RLC Radio Link Control
  • MCG primary cell group
  • SCG Secondary Cell Group
  • the Access Control (MAC) entity and the air interface arrive at the corresponding MAC entity and RLC entity of the terminal device or base station; finally converge to the PDCP layer; when the PDCP layer detects that the data received by the two PDCP entities is the same data obtained after copying, such as through two If two PDCP PDUs have the same serial number (Serial Number), it is judged that the data is the same data obtained after copying, and one copy of the data is discarded, and the other data is submitted to the higher layer.
  • Serial Number Serial Number
  • Carrier Aggregation (CA) data replication transmission mode is shown in DRB ID1 or DRB ID3 in Figure 1.
  • the PDCP entity is associated with two different RLC entities, and the two RLC entities are associated with the same MAC entity.
  • the PDCP entity copies the PDCP PDU into the same two copies, and the two PDCP entities pass through different RLC entities in a cell group, the same MAC entity, and the air interface to the terminal equipment or the corresponding MAC entity of the base station.
  • the uplink PDCP data replication function is configured based on DRB, that is, the uplink PDCP data replication transmission configures the data replication transmission with DRB as the granularity to control the activation or deactivation of the data replication transmission.
  • the bearer-based data replication method is configured.
  • Indicate activation or deactivation based on MAC CE that is, indicate whether to use PDCP to copy data transmission or not to use PDCP to copy data transmission; for example, to activate or deactivate PCDP copy data transmission, the MAC CE includes an 8-bit bitmap.
  • bits correspond to different DRBs, and the different values in the bits indicate the activation or deactivation of the data copy transmission of the corresponding DRB; if the bit value is 0, it indicates that the data copy transmission is deactivated; when the bit value is 1, it indicates the activation Data replication and transmission.
  • data replication in related technologies can only be transmitted through two paths, that is, one data packet is replicated once, which limits the application scenarios of data replication transmission; and the terminal device can only determine whether to perform data replication transmission through instructions from the base station And the way of data replication and transmission.
  • the method for the terminal equipment to determine the data replication transmission through the base station instruction is not only inflexible, but also because the base station is not clear about the downlink channel quality, the method for the base station to instruct the terminal equipment to perform the data replication transmission may be inappropriate.
  • the present invention provides a data copying method.
  • the data copying method in the embodiments of this application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (Code Division Multiple Access, CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access , WiMAX) communication system or 5G system, etc.
  • 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
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave
  • the communication system 100 applied in the embodiment of the present application is shown in FIG. 2.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal).
  • the network device 110 can provide communication coverage for a specific geographic area, and can communicate with terminal devices 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, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or a wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, an in-vehicle device, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks or network devices in future public land mobile networks (Public Land Mobile Network, PLMN), etc.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • LTE Long Term Evolutional Node B
  • eNodeB evolved base station in an LTE system
  • CRAN Cloud Radio Access Network
  • the network equipment can be a mobile switching center, a relay station, an access point, an in-veh
  • the communication system 100 also includes at least one terminal device 120 within the coverage of the network device 110.
  • terminal equipment includes, but is not limited to, connections via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Lines (DSL), digital cables, and direct cable connections ; And/or another data connection/network; and/or via wireless interfaces, such as for cellular networks, wireless local area networks (Wireless Local Area Network, WLAN), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and/or another terminal device configured to receive/transmit communication signals; and/or Internet of Things (IoT) equipment.
  • PSTN Public Switched Telephone Networks
  • DSL Digital Subscriber Lines
  • WLAN wireless local area networks
  • digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter
  • IoT Internet of Things
  • a terminal device set to communicate through a wireless interface may be referred to as a "wireless communication terminal", “wireless terminal”, or “mobile terminal”.
  • mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communication Systems (PCS) terminals that can combine cellular radiotelephones with data processing, facsimile, and data communication capabilities; may include radiotelephones, pagers, Internet/internal PDA with networked access, web browser, notepad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palm-type receivers or others including radiotelephone transceivers Electronic device.
  • PCS Personal Communication Systems
  • GPS Global Positioning System
  • Terminal equipment can refer to access terminal, user equipment (User Equipment), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or User device.
  • Access terminals can be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital processing (Personal Digital Assistant (PDA), wireless communication Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in PLMNs that will evolve in the future, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • direct terminal connection (Device to Device, D2D) communication may be performed between the terminal devices 120.
  • the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.
  • NR New Radio
  • Figure 2 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller, a mobility management entity, etc. This embodiment of the present application does not limit this.
  • the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices.
  • the communication device may include a network device 110 with a communication function and a terminal device 120.
  • the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities, and other network entities, which are not limited in the embodiment of the present application.
  • An optional processing flow of the data replication method applied to terminal equipment provided by the embodiment of the present invention, as shown in FIG. 3, includes the following steps:
  • Step S201 The terminal device determines first data copy information based on the first information.
  • the first information is information related to resources and/or services, and the first data replication information is used to indicate a data replication mode. It can also be understood that the first data replication information represents a data replication mode; or the first data replication information corresponds to the first data replication mode.
  • the terminal device determines, based on the first information, a path identifier or path used during data replication and transmission.
  • the first information is configured by a network device.
  • the first information is indicated to the terminal device by the network device, or indicated to the terminal device by the network device when a certain condition is met.
  • the terminal device determines the first data replication information based on the first indication information; in this case, the terminal device determines the first data replication information based on the first indication information and the first information. It can also be understood that the first data replication information represents a data replication mode; or the first data replication information corresponds to the first data replication mode. In a specific implementation, the first indication information is used to indicate the manner in which the terminal device determines the first data replication mode, or instruct the terminal device to determine the manner in which the first data replication information is determined.
  • the first indication information is used to indicate: the first data copy information independently determined by the terminal device; or the first data copy information determined by the terminal device according to the instruction information from the network; or The first data copy information determined by the terminal device according to the first indication information; or the first data copy information determined by the terminal device and the network device through negotiation. Or the first data copy information determined by the terminal device according to the second data copy information and/or the first strategy; or the first data copy information further determined by the terminal device based on the second data copy information .
  • the first indication information is used to indicate: the data replication mode determined independently by the terminal device; or the data replication mode determined by the terminal device according to the instruction information from the network; or the terminal device according to the first A data replication mode determined by the indication information; or a data replication mode determined by the terminal device and the network device through negotiation; or a data replication mode determined by the terminal device according to the second data replication information and/or the first policy; or The data copy mode further determined by the terminal device based on the second data copy information.
  • the terminal device determines based on the first indication information, and the path identifier or path used during data copy transmission may be determined by the terminal device itself or the terminal device may participate in the determination.
  • the first information includes at least one of the following: channel quality information, service pattern (pattern), service quality (Quality of Service, QoS) information, the size of data to be transmitted in the buffer, the size of available time-frequency resources, The priority of the logical channel to be transmitted, the priority of the logical channel group to be transmitted, the identifier of the logical channel to be transmitted, the identifier of the logical channel group to be transmitted, the service identifier to be transmitted, the service identifier carried/established by the terminal device, the data packet network protocol (Internet Protocol, IP) information, data packet Ethernet (Ethernet) address, copy instruction, specific service, specific bearer, specific data packet, service type to be transmitted, and available time-frequency resource attributes.
  • IP Internet Protocol
  • Ethernet Ethernet
  • the service QoS information includes at least one of the following: delay level, reliability level, delay, reliability, period, data packet size, service priority, service type, and service quality flow identifier (Quality of Service Flow) Identifier, QFI).
  • the size of the data to be transmitted in the buffer is the size of the data to be transmitted in the PDCP buffer and/or the size of the data to be transmitted in the RLC buffer.
  • the available time-frequency resource size is the available time-frequency resource size of the MAC layer.
  • Available time-frequency resource attributes include at least one of the following: time-frequency resource priority, time-frequency resource identifier, and time-frequency resource Link Control Protocol (LCP) restriction attributes; such as available subcarrier spacing (SCS) , Physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) duration (duration).
  • LCP Link Control Protocol
  • SCS available subcarrier spacing
  • PUSCH Physical Uplink Shared Channel
  • the channel quality information may be determined by at least one of the following: reference signal measurement value, hybrid automatic repeat-reQuest (Hybrid Automatic Repeat-reQuest, HARQ) information, and automatic repeat-reQuest (Automatic Repeat-reQuest, ARQ) information .
  • the reference signal measurement values include: Signal to Interference plus Noise Ratio (SINR), Reference Signal Receiving Power (RSRP), Reference Signal Receiving Quality (Reference Signal Receiving Quality, RSRQ) and received signal strength indication (Received Signal Strength Indication, RSSI).
  • SINR Signal to Interference plus Noise Ratio
  • RSRP Reference Signal Receiving Power
  • RSRQ Reference Signal Receiving Quality
  • RSSI received signal strength indication
  • the data replication method includes at least one of the following: determining whether to use the bearer corresponding to the data replication; whether to use the data replication transmission; the number of data replications; the path identification or path used when the data replication transmission is not adopted; The number of replication transmission paths; the path identifier or path used during data replication transmission; the granularity of data replication transmission; the object of data replication transmission.
  • the path identifier includes a logical channel identifier and/or an RLC identifier.
  • the number of paths includes the number of logical channels and/or the number of RLCs.
  • the number of data replications includes: the number of data replications for each path and/or the total number of data replications.
  • the number of data replications is the total number of data replications, and the total number of data replications is 4, the path used is 2, then 3 of the data can be transmitted in one path, and 1 of the data can be transmitted in the other path data.
  • the number of data replications is the number of replications of each path, and the number of replications of each path is 1, and the number of paths used for data replication transmission is 4, then the number of transmitted data is 4.
  • the data replication transmission path can be more than two, the application range of data replication transmission is expanded.
  • the granularity of data replication transmission includes at least one of the following: packet-based granularity, QoS flow granularity, PDU session granularity, IP quintuple-based granularity, Ethernet address-based granularity, DRB-based granularity and Based on the granularity of the terminal device.
  • each granularity can also be the granularity of a list, such as packet list granularity, QoS flow list granularity, PDU session list granularity, IP quintuple list granularity, Ethernet address list granularity, DRB list granularity, and terminal device list granularity.
  • the granularity based on the IP quintuple may also be a granularity based on at least one element, for example, the same processing is performed on data packets based on the same source address and transport layer protocol.
  • the terminal device may adopt one or more granularities of data replication transmission. An example is given for the use of two or more granularities of data replication and transmission for the same bearer by the terminal device.
  • DRB1 carries packet 1 and a data packet with a QFI value of 1, and packet 1 does not belong to a QoS flow with a QFI value of 1, and performs QoF-based data replication transmission for packets with a QFI value of 1, and performs packet-based transmission for packet 1.
  • the QFI value of 1 refers to the QoS flow with the identifier 1.
  • the granularity of data replication and transmission is more finely divided, for example, based on the granularity of data packets, which can indicate more fine-grained replication data transmission.
  • the terminal device performs processing on the data packet corresponding to the determined QFI or QFI list. Copy transmission.
  • the terminal device will copy and transmit the data packet with the QFI of 2.
  • the network device simultaneously configures or instructs the data replication and transmission of the data packet IP information, or identification information, or specific priority information.
  • the data packet corresponding to the IP or identification or priority of the data packet is copied and transmitted. If the data packet IP configured by the network device for the terminal device is A, the terminal device will copy and transmit the data packet whose IP is A.
  • the object of the data replication transmission includes at least one of the following: data packet identifier, QoS flow identifier, PDU session identifier, IP quintuple identifier, Ethernet address identifier, DRB identifier, terminal device identifier, SRB identifier, SRB list identification data packet list identification, QoS flow list identification, PDU session list identification, IP quintuple list identification, Ethernet address list identification, DRB list identification, terminal device list identification, specific priority data packet, specific priority QoS flow, specific priority PDU session, specific priority IP 5-tuple, specific priority Ethernet address, specific priority DRB, specific priority terminal equipment, specific priority SRB, specific priority data Packet list, QoS flow list with specific priority, PDU session list with specific priority, IP 5-tuple list with specific priority, Ethernet address list with specific priority, DRB list with specific priority, terminal equipment with specific priority List, SRB list of specific priority.
  • the data replication method further includes: data packets using data replication in the bearer.
  • the terminal device determines the data packet using data replication in the bearer based on at least one of the following: PDU session identifier, QFI, and replication transmission auxiliary information.
  • QFI can be obtained from the header of the data packet corresponding to the SDAP through the PDCP entity, or can be indicated by the upper layer, or carried by the transmitted data packet.
  • the terminal device determines the data packet using the data replication in the bearer based on at least one of the following: PDU session identifier, QFI and copy transmission auxiliary information.
  • the copy transmission auxiliary information includes at least one of the following: QFI, PDU session identifier, IP information, Ethernet address, priority information, copy indication, specific service identifier, bearer identifier, specific packet identifier, delay, reliability , Delay level and reliability level.
  • the IP information includes at least one of the following: IP address information, port identification, transport layer protocol identification/type, and upper layer protocol identification/type.
  • the terminal device determines to perform data copy transmission for a data packet whose QFI value is equal to 1 according to information such as QoS requirements, service pattern and channel quality; then when the corresponding QFI value of the data packet is 1, the data packet is copied Transmission; Data copy transmission is not performed for data packets whose QFI value is not 1.
  • the following describes how the terminal device determines the first data copy information for different contents included in the first information:
  • a comparison threshold can be preset.
  • the terminal device determines not to use data copy transmission; or arranges in ascending order according to the channel quality Or in descending order, the terminal device selects the path corresponding to the M or the first N carriers for data copy transmission, where the values of M and N can be predefined values, or can be indicated by the network device to the terminal device, or by the terminal Determined by the device; or when the measured value of the reference signal is greater than or equal to the first threshold, the terminal device determines to use data copy transmission; or the number of times that the measured value of the reference signal is greater than or equal to the first threshold is greater than or equal to the second threshold
  • the terminal device determines to use data replication transmission; or when the reference signal measurement value is less than or equal to the first threshold value, the terminal device determines to use data replication transmission; or the reference signal measurement value is less than or equal to the first threshold value and is greater than When it is equal to the second threshold, the terminal
  • the terminal device determines not to use data replication transmission; or when the number of ARQ retransmissions is less than or equal to the fifth threshold, the terminal device determines to use data replication transmission; or the number of ARQ retransmissions is less than or equal to the fifth threshold When, the terminal device determines not to use the data copy transmission.
  • the terminal device determines whether to use data replication transmission according to the service cycle; for example, when the service cycle is short. When data packets arrive densely, copy data transmission is used. Or, the terminal device determines whether to use data copy transmission according to the service status; for example, when the service starts or ends, the terminal device determines to use data copy transmission, and the service includes at least one of the following: URLLC service, IIoT service and High-priority services; for example, when a logical channel has a service to be transmitted, the terminal device determines to use data copy transmission.
  • the logical channel includes at least one of the following: carrying URLLC services, TSN services, IIoT services, and high-priority services Business;
  • the high-priority business can be at least one of the following: a business with a small priority identifier, a specific business with a priority identifier, a business with a priority identifier within a certain range, and a delay Services that require higher than a certain threshold, and services that require reliability higher than the first threshold; for example, when a specific service exists/established/carried on the terminal device or starts to transmit on the terminal device, the terminal device determines to use data copy transmission ,
  • the logical channel includes at least one of the following: carrying URLLC services, TSN services, IIoT services, and high-priority services; optionally, the high-priority services may be at least one of the following: priority identification value For small businesses, priority identifies specific businesses, priority identifies businesses whose values are within a certain range, businesses whose delay requirements are higher than a certain threshold,
  • the terminal device selects a logical channel to be transmitted with a high priority or a specific priority for data copy transmission.
  • the terminal device displays the identifiers of the logical channels to be transmitted. Randomly select the logical channel identifier to be transmitted that is the same as the number of data replication transmission paths.
  • the terminal device selects the same logical channel or the corresponding bearer as the logical channel identifier to be transmitted for data copy transmission, or the terminal device selects and The logical channel or corresponding bearer with the same transmission logical channel identifier does not perform data copy transmission.
  • the terminal device selects some or all of the logical channels contained in the logical channel group corresponding to the logical channel group identifier or the corresponding bearer without data Copy transmission, or the terminal device selects part or all of the logical channels or corresponding bearers included in the logical channel group corresponding to the logical channel group identifier to perform data copy transmission.
  • the terminal device determines that the service data packet with the service identification performs data copy transmission, or the terminal device determines that the service data packet with the service identification is The number of data copying is 5 times.
  • the terminal device determines that the data packet with the service type performs data replication transmission, or the terminal device determines that the data packet with the service type is data replication
  • the transmission granularity is based on the granularity of the PDU session.
  • the terminal device determines not to use data copy transmission. Or, when the first information includes a service identifier carried/established by the terminal device, and the service corresponding to the service identifier does not meet the first condition for using data copy transmission, the terminal device determines the bearer of the service/carrying the service, etc. No data copy transmission.
  • the terminal device determines the bearer/PDU session/QoS flow that carries the specific service and adopts data replication transmission.
  • the terminal device determines whether to use data replication transmission according to the delay level, reliability level, QFI, and the like. For example, the terminal device determines to use data replication transmission for services that require high reliability and/or short delay; or, the terminal device determines the bearer of a specific QoS flow/PDU session, or a specific QoS flow, a specific PDU session Use data replication transmission; or, the terminal device determines the number of data replication transmissions and/or the number of data replication transmission paths according to QFI.
  • the terminal device responds to a data packet with a specific IP address, the data packet, or the QoS flow that carries the data packet, or the PDU session that carries the data packet, or The bearer carrying the data packet uses data copy transmission.
  • the terminal device determines not to use data copy transmission; or the URLLC to be transmitted Or when the IIoT service volume is less than the eighth threshold, the terminal device determines not to use data replication transmission; or when the URLLC or IIoT service volume to be transmitted is greater than the ninth threshold, the terminal device determines to use data replication transmission.
  • the terminal device determines to use data copy transmission.
  • the terminal device determines to use data copy transmission.
  • the terminal device can determine the data replication mode required for data replication and transmission based on the first information, that is, the terminal device can independently determine how to perform data replication and transmission based on the first information, without combining the data sent by the network device. Copy mode or pre-configured data copy mode.
  • the terminal device cannot independently determine the data replication mode required for data replication transmission based on the first information; or the terminal device combines the first data replication information determined by itself according to factors such as protocol agreement and configuration information. And the second data copy information sent by the network device to determine the data copy mode required for data copy transmission.
  • the method not only includes step S201, but also includes:
  • Step S202 The terminal device receives the second data copy information sent by the network device.
  • the second data replication information is used to indicate a data replication mode, and the second data replication information is sent by the network device to the terminal device through dedicated signaling, that is, the second data replication information is carried in the dedicated signaling.
  • the dedicated signaling includes: RRC message, MAC CE and DCI signaling.
  • the second data replication information is determined by the network device based on the first information; or, the second data replication information is determined based on the first data replication information sent by the terminal device to the network device; or, the The second data copy information is determined according to the first data copy information and the first information sent by the terminal device to the network device; the first information may be obtained by the network device itself, or may be sent by the terminal device to the network device.
  • the data replication mode indicated by the first data replication information may be completely the same, or partially the same, or completely different from the data replication mode indicated by the second data replication information.
  • the first data replication information includes: whether data replication transmission is adopted and the bearer of the data replication transmission is adopted;
  • the second data replication information includes: the path identification used when the data replication transmission is not adopted, and the path identification used during the data replication transmission , The granularity of data replication transmission and the number of times of data replication; at this time, the data replication mode indicated by the first data replication information is completely different from the data replication mode indicated by the second data replication information.
  • the terminal device when the first data replication information determined by the terminal device according to the first information and the data replication mode included in the second data replication information are completely different, the terminal device is based on the first data replication information. Determine the first information in the first data replication data, and determine the second information in the first data replication data based on the second data replication information, where the first data replication data includes the first information and the second information Information; or, the terminal device determines the first information in the first data replication manner based on the first data replication information, and determines the second information in the first data replication manner based on the second data replication information Information, the first data copy mode includes first information and second information.
  • the terminal device determines that the data replication mode included in the first data replication information is at least one of the following: whether to use data replication transmission, determine whether to use the bearer corresponding to the data replication, the number of data replications, and not to use data replication transmission Time and path identifier used; the terminal device determines that the data copy mode included in the second data copy information is at least one of the following: the number of paths used for data copy transmission, the path or path identifier used during data copy transmission, and data copy transmission The granularity and the object of data replication and transmission.
  • the data copy mode finally determined by the terminal device includes at least one data copy mode corresponding to the first data copy information: whether to use data copy transmission, determine whether to use the bearer corresponding to the data copy, the number of times of data copy, and not to use The path or path identifier used during data replication and transmission; and the corresponding at least one data replication method in the second data replication information: the number of paths used for data replication transmission, the path or path identifier used during data replication transmission, and data replication The granularity of transmission and the object of data replication and transmission.
  • the first data copy information and the second data copy information determined by the terminal device according to the first information include part or all of the same data copy mode, and for the same data copy mode, the first data copy information
  • the terminal device adopts the content indicated by the corresponding first data replication mode in the second data replication information; or The terminal device adopts the content indicated in the first copy information corresponding to the first data copy mode; or, the terminal device determines that the first data copy is based on the first copy information and the second copy information
  • the first data replication information and the second data replication information determined by the terminal device based on the first information both include the number of data replications
  • the first data replication information indicates that the number of data replications is 4.
  • the terminal device may use the number of data copying as 4 or the number of data copying as 8.
  • the terminal device can adaptively modify the data indicated in the first data replication information Copy method.
  • the number of times that the terminal device uses data replication according to the second data replication information is 8, and when the paths 1, 2, 3, and 4 are used for transmission, if the terminal device determines that the first data replication information uses data replication The transmission path is different, and the terminal device needs to further update the transmission path using data copy to 1, 3 or 1, 5, and the number of copied data to be transmitted is 8.
  • the number of times that the terminal device uses data replication according to the second data replication information is 8, and when the paths 1, 2, 3, and 4 are used for transmission, if the terminal device determines that the first data replication information uses data replication If the value of the number of transmissions is different, the terminal device needs to further update the number of data transmissions by data replication, but still select the path 1, 2, 3, and 4 for transmission. Or the terminal device simultaneously updates the number of data replication transmissions and the data replication transmission path.
  • the terminal device determining the content indicated by the first data copying method based on the first copying information and the second copying information; the data copying method is the path identifier used when data copying is used for transmission
  • the terminal device determines based on the first copy information that the path identifiers used in data copy transmission are 1 and 2, and based on the second copy information determines that the path identifier used in data copy transmission is 3, the terminal device finally determines to use the data
  • the path identifiers used when copying and transmitting are 1, 2, and 3.
  • the terminal device determines based on the first copy information that the path identifiers used in data copy transmission are 1 and 2, and based on the second copy information determines that the path identifiers used in data copy transmission are 1 and 3, the terminal device finally determines to use The path identifier used for data replication and transmission is 1.
  • the terminal device determining the content indicated by the first data replication mode based on the second replication information and the first strategy; taking the data replication mode as the number of paths for data replication transmission as an example, if it is based on the first
  • the second copy information determines the number of paths for data copy transmission to be 2
  • the first strategy indicates that the number of paths for data copy transmission is less than 4, and the terminal device finally determines the number of paths for data copy transmission to be 2.
  • the first strategy may stipulate information such as the number of paths, RLC entities, carriers, etc., for simultaneously supporting or selecting data replication transmission at most.
  • the first strategy may be pre-configured or indicated by the network.
  • the terminal device determining the content indicated by the first data replication mode based on the second replication information and the first strategy; the first strategy may be when the second replication information conflicts with the first replication information , How to determine the information or strategy of the data replication mode; or, the first strategy may be the information or strategy of how to determine the data replication mode when the second replication information is received.
  • the UE selects the leg that is ultimately used for data replication and transmission based on the first policy and the three legs indicated by the network, such as leg1 In, leg2, and leg3, leg1 and leg2 are selected as the leg for the final transmission of the copied data.
  • leg1, leg2, and leg3 when receiving the instruction from the network device to use or activate the legs are leg1, leg2, and leg3, the UE determines that the maximum number of legs used to transmit replicated data is 2, based on the first policy and the three legs indicated by the network, and Make sure to select the leg that is ultimately used for data replication transmission. For example, leg1 and leg2 are selected from leg1, leg2, and leg3 as the leg for the final transmission of the replicated data.
  • the terminal device determines the content indicated by the first data replication mode based on the second replication information by an example; taking the data replication mode as a data replication transmission path as an example, the terminal device is used for data indicated by the network device Select the leg that is ultimately used for data replication and transmission among the activated legs of the replication transmission. Specifically, the legs that the network device indicates to use or activate are leg1, leg2, and leg3. The UE selects the leg that is ultimately used for data replication and transmission based on the three legs indicated by the network, such as leg1, leg2, and leg3. And leg2 is the leg that finally transmits the copied data.
  • the terminal device updates the first data replication based on the second replication information.
  • Information or the terminal device determines part of the data copying mode based on the second copy information, or the terminal device determines another part of the data copying mode based on the second copying information.
  • the terminal device is based on the second replication.
  • the information updates the first data copy information, or the terminal device determines part of the data copy mode based on the second copy information, or the terminal device determines the other data copy mode based on the second copy information Part of the information.
  • the terminal device stores the data copy mode indicated in the second copy information into the first copy information, so as to update the first copy information.
  • the terminal device performs data copy transmission based on the data copy mode indicated by the updated first copy information. For example, the terminal device determines to perform data replication transmission to DRB1, and the second data replication information indicates that the path identifier for data transmission is the logical channel identifier, and the logical channel identifiers 1 and 2 are used for transmission; then the terminal device determines to use Logical channels identified as 1 and 2 transmit DRB1.
  • the terminal device determines the data replication mode according to the first data replication information and the second data replication information.
  • the terminal device when the terminal device in the embodiment of the present invention determines the data replication mode, the terminal device may determine it by itself, or according to the configuration of the network device or the instruction of the network device, or the terminal device and the network device through negotiation.
  • the activation or deactivation of data replication transmission is instructed by the network device, and the data replication transmission path is selected or determined by the terminal device itself. 2. Activation or deactivation of data copy transmission is selected or determined by the terminal device itself, and the path of data copy transmission is instructed by the network device. 3. The activation or deactivation of data replication transmission is instructed by the network device, and the path of data replication transmission can be determined by at least one of the following methods: the terminal device determines according to the first strategy, and the terminal device determines based on the instructions of the network device and the first strategy , The terminal device is only further determined according to the instructions of the network device, and the terminal device and the network device are negotiated and determined. 4.
  • the activation or deactivation of data replication and transmission is determined by the terminal device and the network device in at least one of the following ways: the terminal device is determined according to the first policy, the terminal device is determined based on the network device’s instructions and the first policy, and the terminal device is determined only according to the network The device's instructions are further determined, the terminal device and the network device are negotiated and determined, and the data copy transmission path is instructed by the network device. 5. Activation or deactivation of data replication transmission is selected or determined by the terminal device itself.
  • the path of data replication transmission is determined by the terminal device and the network device in at least one of the following ways: the terminal device is determined according to the first strategy, and the terminal device is based on the network The device's instruction and the first strategy are determined, and the terminal device is only further determined according to the network device's instruction, and the terminal device and the network device are negotiated and determined. 6.
  • the activation or deactivation of data replication and transmission is determined by the terminal device and the network device in at least one of the following ways: the terminal device is determined according to the first policy, the terminal device is determined based on the network device’s instructions and the first policy, and the terminal device is only determined by the network The instructions of the device are further determined, the terminal device and the network device are negotiated and determined, and the data copy transmission path is selected or determined by the terminal device itself. 7.
  • the path for activating or deactivating data copy transmission and data copy transmission is determined by at least one of the following methods: the terminal device is determined according to the first strategy, the terminal device is determined based on the network indication and the first strategy, and the terminal device has only the network indication To further determine, the terminal device and the network device negotiate to determine.
  • the final data replication mode is determined by the first data replication information, or by the second data replication information, or by the first data replication information and the second data replication information.
  • the first data replication information determines a partial data replication mode
  • the second data replication information determines a partial data replication mode
  • the configured number of legs used for data replication and transmission is at most or the maximum is 4, and the number of legs used for data replication and transmission that are activated/activated or used at the same time is at most or the maximum is 2.
  • the primary path (primary leg) in the replication data transmission configuration, because when the replication data transmission is not used, the leg that can be used may not be the primary leg.
  • it is instructed by the network equipment or independently determined by the UE.
  • the method further includes:
  • Step S203 The terminal device sends at least one of the first information, the first data copy information, and the first data copy information determination instruction to the network device.
  • the network device may also determine or update the second data replication information according to the foregoing information sent by the terminal device.
  • the determined or updated second data replication information including the first information includes at least one of the following.
  • Step S203 may be executed first, and then step S203 may be executed; or step S203 may be executed first, and then step S202 may be executed.
  • step S202 is executed first, there is no order of execution of step S202 and step S201, either step S201 may be executed first, and then step S202; or step S202 may be executed first, and then step S201 may be executed.
  • the method further includes:
  • Step S204 The terminal device updates the first data copy information.
  • the terminal device may update the first data copy information according to the second data copy information sent by the network device, or may re-determine the first data copy information according to the first information.
  • the terminal device updating the first data copy information according to the second data copy information sent by the network device includes: the terminal device adds the data copy mode and terminal indicated by the first data copy information according to the second data copy information sent by the network device The device modifies the data replication mode indicated by the first data replication information according to the second data replication information sent by the network device.
  • step S201 another optional processing flow of the data copying method, as shown in FIG. 5, before the terminal device performs step S201, the method further includes:
  • Step S200a The network device determines and configures the RLC entity identifier/logical channel identifier that is borne when the data is copied and transmitted.
  • the terminal device determines which of all the bearers to perform data replication transmission, and only configures the available RLC entity identifier/logical channel identifier for the bearer that performs data replication transmission.
  • the network device can configure the RLC entity identifier/logical channel identifier that can be used for all bearers.
  • the RLC entity identifier and the logical channel identifier are: all identifiers corresponding to the bearer or corresponding PDCP entities.
  • Step S200b The network device sends the configured RLC entity identifier/logical channel identifier to the terminal device, and indicates the initial mode of data replication transmission.
  • the network equipment uses dedicated signaling.
  • the RRC reconfiguration message, MAC CE, etc. send the configured RLC entity identifier/logical channel identifier and the initial mode of data replication transmission to the terminal device.
  • the RLC entity ID/logical channel ID used, and/or, data replication is the RLC entity ID/logical channel ID used during deactivation.
  • Step S200c The terminal device performs configuration association according to the received RLC entity identifier/logical channel identifier.
  • the terminal device determines the RLC entity identifier/logical channel identifier related to the bearer according to the dedicated signaling sent by the network device, and completes the configuration association corresponding to the RLC entity identifier/logical channel identifier.
  • the terminal device performs data transmission based on the initial mode of data copy transmission sent by the dedicated letter.
  • path in the embodiment of the present invention is also called leg.
  • the embodiment of the present invention also provides a terminal device.
  • the composition structure of the terminal device 300, as shown in FIG. 6, includes:
  • the processing unit 301 is configured to determine first data replication information based on first information; the first information is information related to resources and/or services, and the first data replication information is used to indicate a data replication mode.
  • the first information includes at least one of the following: channel quality information, service pattern, service QoS information, the sum of the data size to be transmitted in the buffer, the available time-frequency resource size, and the logical channel to be transmitted Priority, priority of logical channel group to be transmitted, logical channel identification to be transmitted, logical channel group identification to be transmitted, service identification to be transmitted, service identification carried/established by terminal equipment, data packet IP information, data packet Ethernet address, copy instruction , Specific services, specific bearers, specific data packets, types of services to be transmitted and available time-frequency resource attributes.
  • the processing unit 301 is further configured to determine the first data replication information based on the first indication information; the first indication information is used to instruct the terminal device to determine the mode of the first data replication mode , Or instruct the terminal device to determine the manner of the first data copy information.
  • the service QoS information includes at least one of the following: delay level, reliability level, delay, reliability, period, data packet size, service priority, service type, and QFI.
  • the data replication method includes at least one of the following: whether to use data replication transmission; determine whether to use the bearer corresponding to the data replication; the number of data replications; the path used when the data replication transmission is not adopted Identification or path; the number of paths used for data replication transmission; the path identification or path used during data replication transmission; the granularity of data replication transmission; the object of data replication transmission.
  • the granularity of the data replication transmission includes at least one of the following: packet granularity, QoS flow granularity, PDU session granularity, IP 5-tuple-based granularity, Ethernet address-based granularity , Based on DRB granularity and terminal device granularity.
  • the object of the data replication transmission includes at least one of the following: data packet identification, QoS flow identification, PDU session identification, IP 5-tuple identification, Ethernet address identification, DRB identification, terminal device identification , SRB identification, SRB list identification, data packet list identification, QoS flow list identification, PDU session list identification, IP quintuple list identification, Ethernet address list identification, DRB list identification, terminal device list identification, specific priority data packets, Specific priority QoS flow, specific priority PDU session, specific priority IP quintuple, specific priority Ethernet address, specific priority DRB, specific priority terminal equipment, specific priority SRB, specific priority Priority packet list, specific priority QoS flow list, specific priority PDU session list, specific priority IP 5-tuple list, specific priority Ethernet address list, specific priority DRB list, specific priority A list of terminal devices and a list of SRBs with a specific priority.
  • the path identifier includes: logical channel identifier and/or RLC entity identifier.
  • the number of paths includes: the number of logical channels and/or the number of RLCs.
  • the data replication manner further includes: data packets that use data replication in the bearer.
  • the data packet using data replication in the bearer is determined based on at least one of the following: PDU session identifier, QFI, and replication transmission auxiliary information.
  • the copy transmission auxiliary information includes at least one of the following: QFI, PDU session identifier, IP information, Ethernet address, priority information, copy indication, specific service identifier, bearer identifier, specific package identifier , Delay, reliability, delay level and reliability level.
  • the IP information includes at least one of the following: IP address information, port identification, transport layer protocol identification/type, and upper layer protocol identification/type.
  • the terminal device further includes: a first transceiving unit 302 configured to receive second data copy information sent by the network device, where the second data copy information is used to indicate a data copy mode.
  • the processing unit 301 when the second data replication information and the first data replication information indicate different content for the same data replication mode, the processing unit 301 is configured to use any one of the following to determine The content indicated by the first data copy mode:
  • the copy information determines the content indicated by the first data copy mode; determines the content of the first data copy mode based on the second copy information and/or the first strategy; determines the first data copy method based on the second copy information The content of the data copy method.
  • the processing unit 301 when the data replication mode included in the first data replication information and the second data replication information is completely different, the processing unit 301 is configured to update the first data replication information based on the second replication information. Data replication information.
  • the processing unit 301 is configured to determine the first information in the first data replication mode based on the first data replication information, and determine the second information in the first data replication mode based on the second data replication information,
  • the first data replication method includes first information and second information.
  • the second data replication information and the first data replication information indicate the same content for the same data replication mode
  • the processing unit 301 is configured to adopt the content corresponding to the first data copy mode in the second data copy information
  • the content corresponding to the first data copying method in the first data copy information is adopted.
  • the terminal device further includes: a second transceiving unit 303 configured to send the first data copy information and/or the first information to the network device.
  • the method for the processing unit 301 to determine the first data replication information includes at least one of the following: the first data replication information independently determined by the terminal device; The first data copy information determined by the instruction information from the network; the first data copy information determined by the terminal device according to the first instruction information; the first data copy information determined by the terminal device and the network device through negotiation.
  • the embodiment of the present invention also provides a terminal device, including a processor and a memory for storing a computer program that can run on the processor, wherein the processor is used to execute the above-mentioned terminal device when the computer program is running.
  • a terminal device including a processor and a memory for storing a computer program that can run on the processor, wherein the processor is used to execute the above-mentioned terminal device when the computer program is running. The steps of the instruction method of the data copy mode.
  • An embodiment of the present invention also provides a network device, including a processor and a memory for storing a computer program that can run on the processor, where the processor is used to execute the above-mentioned network device when the computer program is running.
  • the steps of the instruction method of the data copy mode are described in detail below.
  • FIG. 7 is a schematic diagram of the hardware composition structure of an electronic device (terminal device) according to an embodiment of the present invention.
  • the electronic device 1000 includes: at least one processor 1001, a memory 1002, and at least one network interface 1004.
  • the various components in the electronic device 1000 are coupled together through the bus system 1005.
  • the bus system 1005 is used to implement connection and communication between these components.
  • the bus system 1005 also includes a power bus, a control bus, and a status signal bus.
  • various buses are marked as the bus system 1005 in FIG. 7.
  • the memory 1002 may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory.
  • non-volatile memory can be ROM, Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), and electrically erasable Programmable read-only memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), magnetic random access memory (FRAM, ferromagnetic random access memory), flash memory (Flash Memory), magnetic surface memory, optical disk, or CD-ROM -ROM, Compact Disc Read-Only Memory); Magnetic surface memory can be disk storage or tape storage.
  • the volatile memory may be a random access memory (RAM, Random Access Memory), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • SSRAM synchronous static random access memory
  • DRAM Dynamic Random Access Memory
  • SDRAM Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Double Data Rate, Synchronous Dynamic Random Access Memory
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM SyncLink Dynamic Random Access Memory
  • DRRAM Direct Rambus Random Access Random Access Memory
  • DRRAM Direct Rambus Random Access Random Access Memory
  • the memory 1002 described in the embodiment of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.
  • the memory 1002 in the embodiment of the present invention is used to store various types of data to support the operation of the electronic device 1000. Examples of these data include: any computer program used to operate on the electronic device 1000, such as an application program 10022.
  • the program for implementing the method of the embodiment of the present invention may be included in the application program 10022.
  • the method disclosed in the foregoing embodiment of the present invention may be applied to the processor 1001 or implemented by the processor 1001.
  • the processor 1001 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the above method can be completed by hardware integrated logic circuits in the processor 1001 or instructions in the form of software.
  • the aforementioned processor 1001 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like.
  • the processor 1001 may implement or execute various methods, steps, and logical block diagrams disclosed in the embodiments of the present invention.
  • the general-purpose processor may be a microprocessor or any conventional processor.
  • the steps of the method disclosed in the embodiments of the present invention can be directly embodied as execution and completion by a hardware decoding processor, or execution and completion by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a storage medium, and the storage medium is located in the memory 1002.
  • the processor 1001 reads the information in the memory 1002, and completes the steps of the foregoing method in combination with its hardware.
  • the electronic device 1000 may be used by one or more application specific integrated circuits (ASIC, Application Specific Integrated Circuit), DSP, programmable logic device (PLD, Programmable Logic Device), and complex programmable logic device (CPLD). , Complex Programmable Logic Device), FPGA, general-purpose processor, controller, MCU, MPU, or other electronic components to implement the foregoing method.
  • ASIC Application Specific Integrated Circuit
  • DSP digital signal processor
  • PLD programmable logic device
  • CPLD complex programmable logic device
  • FPGA field-programmable logic device
  • controller MCU
  • MPU or other electronic components to implement the foregoing method.
  • Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium may be applied to the terminal device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding process implemented by the terminal device in each method of the embodiments of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the terminal device in each method of the embodiments of the present application.
  • each flow and/or block in the flowchart and/or block diagram and a combination of the flow and/or block in the flowchart and/or block diagram may be implemented by computer program instructions.
  • These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated
  • a device that implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions may also be stored in a computer readable memory that can guide a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, the instructions
  • the device implements the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and/or block diagrams.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operating steps are performed on the computer or other programmable device to generate computer-implemented processing, which is executed on the computer or other programmable device
  • the instructions provide steps for implementing the functions specified in one block or multiple blocks of the flowchart one flow or multiple flows and/or block diagrams.

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Abstract

La présente invention concerne un procédé de duplication de données, comprenant l'opération suivante : un dispositif terminal détermine des premières informations de duplication de données sur la base de premières informations, les premières informations étant des informations relatives à une ressource et/ou à un service, et les premières informations de duplication de données étant utilisées pour indiquer un mode de duplication de données. La présente invention concerne en outre un dispositif terminal et un support d'informations.
PCT/CN2019/074513 2019-01-18 2019-02-01 Procédé de duplication de données, dispositif terminal et support d'informations Ceased WO2020147155A1 (fr)

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