WO2020147055A1 - Procédé de traitement de transmission et de duplication de données, dispositif de terminal et dispositif de réseau - Google Patents

Procédé de traitement de transmission et de duplication de données, dispositif de terminal et dispositif de réseau Download PDF

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Publication number
WO2020147055A1
WO2020147055A1 PCT/CN2019/072057 CN2019072057W WO2020147055A1 WO 2020147055 A1 WO2020147055 A1 WO 2020147055A1 CN 2019072057 W CN2019072057 W CN 2019072057W WO 2020147055 A1 WO2020147055 A1 WO 2020147055A1
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WIPO (PCT)
Prior art keywords
information
rlc entity
logical channel
terminal device
data
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PCT/CN2019/072057
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English (en)
Chinese (zh)
Inventor
石聪
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN201980057235.5A priority Critical patent/CN112640509B/zh
Priority to PCT/CN2019/072057 priority patent/WO2020147055A1/fr
Publication of WO2020147055A1 publication Critical patent/WO2020147055A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data

Definitions

  • the present invention relates to the field of information processing technology, in particular to a processing method for data replication and transmission, terminal equipment, network equipment and computer storage media, chips, computer readable storage media, computer program products, and computer programs.
  • enhanced mobile broadband eMBB, Enhance Mobile Broadband
  • mMTC massive Machine Type of Communication
  • uRLLC ultra-reliable, low-latency communication, Ultra Reliable&Low Latency Communication
  • TSN Time Sensitive Networking
  • Intra-user priority Data duplication and multi-connectivity
  • the existing dual connectivity (DC, Dual Connectivity) and carrier aggregation (CA, Carrier Aggregation) replication (duplication), or DC/ CA Duplication is a kind of combined architecture to further improve reliability.
  • the upstream Packet Data Convergence Protocol (PDCP, Packet Data Convergence Protocol) data replication function can be configured based on the data bearer (DRB, Data Resource Bearer).
  • DRB Data Resource Bearer
  • up to two wireless devices can be used.
  • the link control (RLC, Radio Link Control) entity transmits and copies the transmitted data packets (copy), and the number of transmitted copies corresponds to the number of activated RLC entities one-to-one. If two RLC entities are activated at the same time, each RLC entity transmits one copy respectively. If there is only one RLC entity, then the bearer has only one copy transmission.
  • the number of legs (the number of legs supported by R15 is 1, 2). Therefore, how to determine the number of copies on different logical channels/RLC entities is a new issue that needs to be discussed.
  • embodiments of the present invention provide a processing method for data replication and transmission, a terminal device, a network device, and a computer storage medium, a chip, a computer readable storage medium, a computer program product, and a computer program.
  • a method for processing data replication and transmission which is applied to a terminal device, and the method includes:
  • the second information Based on the first information, the second information, and the third information, determine the number of replicated data packets transmitted by each logical channel/RLC entity in at least part of the logical channel/RLC entity of the at least one logical channel/RLC entity;
  • the first information includes the number of replicated and transmitted data packets that can be carried by different logical channels/RLC entities;
  • the second information includes the total number of replicated and transmitted data packets that can be carried in the logical channel/RLC entity;
  • the third information includes a logical channel/RLC entity used to transmit the data packet for replication transmission.
  • a method for processing data replication and transmission which is applied to a network device, and the method includes:
  • the first information includes the number of replicated and transmitted data packets that can be carried by different logical channels/RLC entities;
  • the second information includes the total number of replicated and transmitted data packets that can be carried in the logical channel/RLC entity;
  • the third information includes a logical channel/RLC entity used to transmit the data packet for replication transmission.
  • a terminal device including:
  • the first processing unit based on the first information, the second information, and the third information, determines that in at least part of the logical channels/RLC entities of the at least one logical channel/RLC entity, each logical channel/RLC entity transmits the duplicate transmission The number of data packets;
  • the first information includes the number of replicated and transmitted data packets that can be carried by different logical channels/RLC entities;
  • the second information includes the total number of replicated and transmitted data packets that can be carried in the logical channel/RLC entity;
  • the third information includes a logical channel/RLC entity used to transmit the data packet for replication transmission.
  • a network device including:
  • the second communication unit sends at least one of the first information, the second information, and the third information to the terminal device;
  • the first information includes the number of replicated and transmitted data packets that can be carried by different logical channels/RLC entities;
  • the second information includes the total number of replicated and transmitted data packets that can be carried in the logical channel/RLC entity;
  • the third information includes a logical channel/RLC entity used to transmit the data packet for replication transmission.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned first aspect or each implementation manner thereof.
  • a network device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect or its implementations.
  • a chip is provided, which is used to implement any one of the foregoing first aspect and second aspect or the method in each implementation manner thereof.
  • the chip includes: a processor for calling and running a computer program from the memory, so that the device installed with the chip executes any one of the above-mentioned first aspect, second aspect, or each of its implementations method.
  • a computer-readable storage medium for storing a computer program that causes a computer to execute the method in any one of the above-mentioned first and second aspects or various implementations thereof.
  • a computer program product which includes computer program instructions, which cause the computer to execute the method in any one of the above-mentioned first and second aspects or various implementations thereof.
  • a computer program which, when run on a computer, causes the computer to execute the method in any one of the above-mentioned first and second aspects or various implementations thereof.
  • Figure 1-1 is a schematic diagram 1 of a communication system architecture provided by an embodiment of the present application.
  • Figure 1-2 is a schematic diagram of an architecture for replication transmission
  • FIG. 2 is a first flowchart of a processing method for data replication and transmission provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of the second flow of the processing method for data copy transmission provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of the third flow of a processing method for data copy transmission provided by an embodiment of the present application.
  • FIG. 5 is a fourth flowchart of a processing method for data copy transmission provided by an embodiment of the present application.
  • FIG. 6 is a fifth schematic flowchart of a processing method for data copy transmission provided by an embodiment of the present application.
  • FIG. 7 is a sixth flowchart of a processing method for data replication and transmission provided by an embodiment of the present application.
  • FIG. 8 is a seventh flowchart of a processing method for data replication and transmission provided by an embodiment of the present application.
  • FIG. 9 is an eighth flowchart of a processing method for data replication and transmission provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram 1 of a transmission format provided by an embodiment of this application.
  • FIG. 11 is a second schematic diagram of a transmission format provided by an embodiment of this application.
  • FIG. 12 is a ninth flowchart of a processing method for data replication and transmission provided by an embodiment of the present application.
  • FIG. 13 is a tenth schematic flowchart of a processing method for data replication and transmission provided by an embodiment of the present application.
  • FIG. 14 is a schematic diagram of the structure of a terminal device provided by an embodiment of the present invention.
  • FIG. 15 is a schematic diagram of the composition structure of a network device provided by an embodiment of the present application.
  • 16 is a schematic diagram of the structure of a communication device provided by an embodiment of the present invention.
  • FIG. 17 is a schematic block diagram of a chip provided by an embodiment of the present application.
  • FIG. 18 is a schematic diagram 2 of a communication system architecture provided by an embodiment of the present application.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • 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 Access
  • the communication system 100 applied in the embodiments of the present application may be as shown in FIG. 1.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or 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 the wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolution of the Public Land Mobile Network (PLMN), etc.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • LTE Long Term Evolutional Node B
  • eNB evolved base station
  • CRAN Cloud Radio Access Network
  • the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches
  • 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 1-1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment of the application 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 and a terminal device 120 with a communication function, and 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 embodiments of the present application.
  • RLC entities RLC entities
  • the number of corresponding RLC entities can be at least one: 1, 2, 3, 4, etc.
  • the solution that supports data duplication utilizes the data duplication function of PDCP, so that the duplicate PDCP PDU is transmitted to two RLC entities (two different logical channels), and finally the duplicate PDCP PDU can be guaranteed It is transmitted on aggregated carriers of different physical layers to achieve frequency diversity gain to improve data transmission reliability.
  • DRB 1 and DRB 3 in Figure 1-2.
  • the solution supporting data duplication utilizes the data duplication function of PDCP, so that the copied PDCP PDU is transmitted to two RLC entities respectively, and the two RLC entities respectively correspond to different MAC entities.
  • DRB2 as shown in Figure 1-2.
  • the uplink PDCP data copy function can be configured based on DRB.
  • at most two RLC entities can be used to transmit copy, and the number of copies transmitted corresponds to the number of active RLC entities. If two RLC entities are activated at the same time, each RLC entity transmits one copy respectively. If there is only one RLC entity, then the bearer has only one copy transmission.
  • This embodiment provides a processing method for data replication and transmission, which is applied to a terminal device. As shown in FIG. 2, the method includes:
  • Step 21 Based on the first information, the second information, and the third information, determine the replicated data packet transmitted by each logical channel/RLC entity in at least part of the logical channel/RLC entity of the at least one logical channel/RLC entity quantity;
  • the first information includes the number of replicated and transmitted data packets that can be carried by different logical channels/RLC entities;
  • the second information includes the total number of replicated and transmitted data packets that can be carried in the logical channel/RLC entity;
  • the third information includes a logical channel/RLC entity used to transmit the data packet for replication transmission.
  • Leg means that when data is replicated and transmitted, a data packet of a PDCP entity can be transmitted by multiple corresponding RLC entities or logical channels, and one of the corresponding RLC entities or logical channels can be called a leg. In this embodiment, it is assumed that the number of legs is n.
  • the logical channel/RLC entity in this embodiment refers to the logical channel or the RLC entity; in other words, the logical channel and the RLC entity have a one-to-one relationship between objects.
  • the method further includes:
  • the terminal device determines at least one of the first information, the second information, and the third information based on at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, and reliability.
  • At least one of the first information, the second information, and the third information in this embodiment may be determined by the terminal device, and of course may also be determined by the network side.
  • the first information is determined by the terminal device
  • the second information and the third information can be determined by the network side and sent to the terminal device; or the first information and the second information are determined by the terminal device, and the third information is determined by the network side.
  • the terminal equipment and the network equipment respectively determine different information, which is a case, that is, the information determined by the terminal equipment does not overlap with the information sent by the network equipment.
  • the terminal device and the network device may also be a situation where the terminal device and the network device have determined the same information, that is, the information determined by the terminal device itself and the information sent by the network device are partially duplicated.
  • the terminal device itself determines the third Information and the third information sent by the network device is received.
  • the terminal device or the information indicated by the network device can be determined according to a preset rule.
  • the preset rules may include one of the following: the information determined by the terminal device is the final use information; the information sent by the network device is the final use information; the information determined from the terminal device, and the information sent by the network device choose one of the information as the final use information; the terminal equipment and the network equipment negotiate to obtain the final use information; the terminal equipment determines the final information according to the information sent by the network equipment.
  • the terminal device itself determines the second information, but also receives the second information from the network device; in this case, it can be determined according to the rules, and the terminal device uses the second information determined by itself for subsequent processing; or, determines according to the rules Based on the network device, that is, the second information sent by the network device is used for subsequent processing. Or it can be determined according to other rules and will not be repeated here.
  • the second information is used as an example for detailed description. It is understandable that the first information, the second information, and the third information are all processed using the above-mentioned rules, but this embodiment will not be exhaustive.
  • the terminal device determines at least one of the first information, the second information, and the third information based on at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, and reliability.
  • the channel quality of a certain logical channel/RLC entity when the channel quality of a certain logical channel/RLC entity is good, it can be determined in the first information that the logical channel/RLC entity carries more data packets, and/or the third information is determined Use the logical channel/RLC entity to transmit data packets for transmission replication transmission; when the quality of a certain logical channel/RLC entity is poor, it can be determined that the logical channel/RLC entity is not used for transmission replication in the third information The transmitted data packets, and/or, determine the number of data packets carrying a small number on the logical channel/RLC entity in the first information. For another example, when the service priority of a certain logical channel/RLC entity is higher, it may be determined first to transmit more or less data packets on the logical channel/RLC entity.
  • a predetermined threshold of a logical channel/RLC entity such as a higher threshold for transmitting data packets, and/or higher reliability, and/or lower delay, can be used in the logical channel/RLC entity
  • a predetermined threshold of a logical channel/RLC entity such as a higher threshold for transmitting data packets, and/or higher reliability, and/or lower delay
  • the second information is taken as an example: the second information is determined by the base station. Or, the second information is determined by the UE itself. Or, the second information is jointly determined by the UE and the base station.
  • the method for the terminal device to obtain the second information may be: obtaining the second information based on the RRC reconfiguration message; it may also include: based on radio resource control (RRC, Radio Resource Control), media access control (MAC, Media Access Control) One of a control element (CE, Control Element) and downlink control information (DCI, DownLink Control Information), to obtain updated second information. That is, the initial second information is determined according to the RRC reconfiguration message, and the updated second information is determined according to the RRC/MAC CE/DCI indication.
  • RRC Radio Resource Control
  • MAC media access control
  • DCI DownLink Control Information
  • the terminal device determines which leg (ie, logical channel/RLC entity) to select to transmit data according to the third information.
  • the third information is determined by the base station, or determined by a terminal device, such as the UE, or jointly determined by the UE and the base station.
  • the third information may be transmitted in a manner that the terminal device obtains the third information according to a dedicated message, such as determining the third information according to an RRC/MAC CE/DCI indication.
  • the first information is determined by the base station, or determined by the UE itself, or jointly determined by the UE and the base station.
  • the transmission mode of the first information may be that the terminal device obtains the third information according to a dedicated message, such as determining the third information according to an RRC/MAC CE/DCI indication.
  • the UE may determine the first information according to at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, reliability, third information, and second information.
  • the relevant information can be determined according to the relationship between the first information, the second information, and the third information. It can be said that at least one of the first information, the second information, and the third information may also be determined based on at least one of the first information, the second information, and the third information other than the information.
  • the first information may also be determined according to at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, reliability, second information, and third information.
  • the several solutions provided in this embodiment may include:
  • the number of copies carried on the leg is determined, and the UE determines which leg is used to transmit data by itself.
  • the UE determines the number of copies and/or the total number of copies carried by each leg.
  • the terminal device itself determines the second information and the third information.
  • the first information can also be determined by the terminal device, or sent from the network side.
  • the terminal device can determine the number of copies carried on the leg according to the second information.
  • the method for determining the first information, the second information, and the third information by itself may be:
  • the terminal device determines the first information, the second information, and the third information based on at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, and reliability.
  • the channel quality of a certain logical channel/RLC entity when the channel quality of a certain logical channel/RLC entity is good, it can be determined in the first information that the logical channel/RLC entity carries more data packets, and/or the third information is determined Use the logical channel/RLC entity to transmit data packets for transmission replication transmission; when the quality of a certain logical channel/RLC entity is poor, it can be determined that the logical channel/RLC entity is not used for transmission replication in the third information The transmitted data packets, and/or, determine the number of data packets carrying a small number on the logical channel/RLC entity in the first information. For another example, when the service priority of a certain logical channel/RLC entity is higher, it may be determined first to transmit more or less data packets on the logical channel/RLC entity.
  • the predetermined threshold of a certain logical channel/RLC entity such as a higher threshold for transmitting data packets and higher reliability, can be allocated more for transmission replication on the logical channel/RLC entity The number of data packets, and vice versa, a smaller number of data packets are allocated.
  • the terminal device determines the number of data packets that can be carried by different logical channels/RLC entities based on the determined first information; then determines the total number of data packets based on the second information; The total number of packets and the number of data packets that can be carried by each logical channel/RLC entity; the third information is determined to determine the logical channel/RLC entity used this time. Finally, based on the logical channel/RLC entity to be used this time, the number of data packets carried in each logical channel/RLC entity is determined.
  • the second information is determined according to the selected leg and the first information, that is, according to the selected logical channel/RLC entity (ie leg) and the data packets that can be replicated and transmitted by each logical channel/RLC entity Quantity, to determine the total number of data packets carried in the logical channel/RLC entity this time.
  • the base station that is, the network side
  • the base station first determines the configuration of data replication transmission and data replication transmission, and sends the existing data transmission configuration to the terminal device; the terminal device performs the data replication transmission configuration according to the initial configuration
  • the mode controls the transmission of the logical channel/RLC entity; the terminal device receives the data multiplexing transmission change instruction sent by the network-side base station.
  • the change instruction may only be an instruction that requires the terminal device to change the transmission mode, and it does not specify the specific Then, the terminal device itself determines the third information, determines which leg that is the logical channel/RLC entity to use for transmission, and determines the second information itself, and determines the location of each leg (logical channel or RLC entity) based on the second information The number of copies carried, that is, the total number of data packets copied and transmitted.
  • the first information can be determined when the terminal device determines the second information and the third information, and the method used can be as before. I will not repeat it here.
  • the first information may also be sent by the network side, that is, the network side, for example, the base station informs the bearer that the total number of copies supported by the bearer is configured as x, and the UE determines by itself at least one logical channel/RLC entity corresponding to the bearer configuration The number of copies that can be transferred. For example, if a bearer is configured with 3 logical channels, and 3 logical channels are selected for transmission, the total number of copies supported by the bearer is 6, and the terminal device determines that the number of copies of each logical channel is 1, 2, and 3.
  • the advantage of the processing method provided in this scenario is that it gives the UE a flexible choice.
  • the second information is sent by the network side, and the first information and the third information can be determined by the terminal device.
  • the UE determines the total number of copies carried on the leg according to the RRC reconfiguration message, and the UE determines which leg is used to transmit data by itself.
  • the receiving at least one of the first information, the second information, and the third information sent from the network side includes:
  • the method may further include: obtaining updated second information based on one of RRC, MAC CE, and DCI.
  • the method further includes: determining the number of replicated and transmitted data packets that each logical channel/RLC entity can carry based on the related configuration information of the data replication transmission mode and the second information sent from the network side, and based on the data The replication transmission mode performs the transmission of the logical channel/RLC entity.
  • the number of data packets also includes:
  • the third information determine at least part of the logical channel/RLC entity used for replication data transmission among the at least two logical channels/RLC entities; determine that each logical channel/RLC entity carries the at least part of the logical channel/RLC entity Copy the number of data packets transmitted, and perform the transmission of the logical channel/RLC entity.
  • the third information is determined by the terminal device itself.
  • the advantage is that the terminal device is more aware of the channel quality information and can flexibly select a suitable carrier or logical channel/RLC entity to improve the reliability of data transmission.
  • the base station (that is, the network side) first determines the configuration of data replication transmission and data replication transmission and the second information, and sends the data transmission configuration and the second information to the terminal device; the terminal device determines each leg according to the second information (Logical channel/RLC entity) Correspond to the number of copies of the bearer, perform data copy transmission configuration, control the transmission of the logical channel/RLC entity according to the initial mode configured therein; receive data copy transmission change indication information from the base station.
  • the second information Logical channel/RLC entity
  • the terminal device determines the data bearer (DRB, Data Resource Bearer) to change the data replication transmission mode, determines the third information by itself, and determines which leg (logical channel/RLC entity) to use for transmission based on the third information.
  • DRB Data Resource Bearer
  • the base station that is, the network side first determines the configuration of data replication transmission and data replication transmission and the second information, and sends the data transmission configuration and/or the second information to the terminal device; the terminal device determines according to the second information
  • Each leg corresponds to the number of copies carried, and executes the data copy transmission configuration, controls the transmission of the logical channel/RLC entity according to the initial mode configured therein; receives the data copy transmission change instruction from the network side base station Information, and second information; according to the change instruction, determine the DRB to change the data replication transmission mode, determine the third information by itself, and determine which leg (logical channel/RLC entity) to use for transmission based on the third information.
  • the third information is sent by the network side, and the first information and the second information can be determined by the terminal device. That is, the terminal device determines the number of copies carried on the leg by itself, and determines which leg is used to transmit data according to dedicated information such as RRC/MAC CE/DCI instructions.
  • the receiving at least one of the first information, the second information, and the third information sent from the network side includes:
  • the third information is acquired based on one of RRC, MAC CE, and DCI; where the third information is used to indicate the logical channel/RLC entity used during initial configuration data replication transmission.
  • the method further includes:
  • the updated third information may be a logical channel/RLC entity used for obtaining the updated copy transmission.
  • the second information is determined by the UE itself.
  • the advantage is that the UE is more aware of channel quality information and can flexibly choose which leg to transmit more copies to achieve the purpose of minimizing the number of transmissions and improving the reliability of data transmission ( For example, choosing a better leg to transmit more copies and a better leg to transmit fewer copies can reduce the number of retransmissions, improve reliability, and reduce transmission delay).
  • the base station informs the bearer that the total number of copies supported by the bearer is configured to be x, and the UE determines the number of copies that can be transmitted on at least one RLC entity corresponding to the bearer.
  • the UE determines that the number of copies of each logical channel is 1, 2, 3.
  • the base station (that is, the network side) first determines the configuration of data replication transmission and data replication transmission, and sends the existing data transmission configuration to the terminal device; the terminal device executes the data replication transmission configuration, Control the transmission of the logical channel/RLC entity according to the initial mode configured therein; upon receiving the data replication transmission change instruction information and the third information from the base station, the terminal device further changes the data replication transmission mode according to the change instruction, and determines based on the third information Which leg (logical channel/RLC entity) to use for transmission. Determine the second information by itself, and determine the number of copies of the bearer corresponding to each leg (logical channel/RLC entity) based on the second information.
  • the configured initial mode control logical channel/RLC entity may also be the third information.
  • the third information and the first information may be determined by the network device. That is, the first information is obtained based on the RRC reconfiguration message, that is, the number of copies carried on each leg is determined according to the RRC reconfiguration message; the third information is obtained based on one of RRC, MAC CE, and DCI, That is, according to the RRC/MAC CE/DCI instructions, determine which leg to use to transmit data.
  • the first information is indicated by a first information element in the logical channel/RLC entity configuration information; or, the first information is indicated by a second information element in the RLC entity configuration information.
  • one of the first information formats adding a first information element IE to the logical channel/RLC entity configuration LogicalChannelConfig.
  • bearerdCopies ENUMERATED ⁇ 1,2,3,4,5,spare3,spare2,spare1 ⁇ is used to indicate the number of related logical channels/RLC entities that support replication transmission data packets. Specifically, see the following:
  • a second information element IE is added to the RLC entity configuration information, such as RLC-BearerConfig.
  • RLC-BearerConfig RLC-BearerConfig
  • "bearerdCopies ENUMERATED ⁇ 1,2,3,4,5,spare3,spare2,spare1 ⁇ ,OPTIONAL,--Need R” is used to indicate the number of data packets that the relevant logical channel/RLC entity supports to replicate and transmit. Specifically, it can be as follows:
  • the third information may be indicated by dedicated information, and the third information may be one of MAC CE, DCI message, and RRC message.
  • the third information may be one of MAC CE, DCI message, and RRC message.
  • different columns correspond to different DRB IDs; different rows correspond to different logical channels/RLC entities associated with the DRB; and the bits in different rows and different columns represent the RLC at the corresponding position Whether the entity transmits copied data;
  • different rows correspond to different DRB IDs; different columns correspond to different logical channels/RLC entities associated with different DRBs; and the corresponding positions are represented by the bits in different rows and different columns Whether the RLC entity transmits copied data.
  • the dedicated signaling is MAC CE.
  • the introduction of 4byte MAC CE is used to indicate the activation/deactivation status of the data copy transmission of each leg, 0 means deactivation, and 1 means activation. Or, it is used to indicate whether each leg transmits PDCP PDU or its copy.
  • Different columns correspond to different DRB IDs, and the corresponding methods are consistent with the existing protocol; different rows correspond to different RLC entities associated with a certain DRB; the value in the bit indicates whether the RLC entity is used to transmit the copied data.
  • MCG has 2 DRBs configured with the replication data transmission function, and the DRB IDs are 0, 3, 5, and 7 respectively;
  • the format of MAC CE is 4 bytes, so from column 1 to column 4 corresponding to these DRBs in ascending order of DRB ID at a time.
  • columns D0, D1, D2, and D3 correspond to DRB ID 0, 3, 5, and 7, respectively.
  • Different rows in each column indicate which RLC entities are used to transmit replicated data. Specifically, in this example, a maximum of 4 RLC entities may be used to transmit replicated data. Sort in the order of the primary cell group (MCG, Master Cell Group) and then the secondary cell group (SCG, Secondary Cell Group), and sort the logical channel IDs in ascending or descending order within each CG. Or, sort according to the order of SCG first and then MCG, and sort the logical channel IDs in ascending or descending order within each CG. For example, for each row of DRB0, from top to bottom, they represent RLC entities 0, 1, 2, and 3. Or, as shown in FIG. 11, it is similar to the description in FIG. 10, except that the vertical columns are changed to horizontal rows, which will not be repeated.
  • the base station determines whether to use the data replication transmission mode and related configuration information of the data replication transmission mode.
  • the base station determines to use the data copy transmission mode, and informs the UE of the configuration information corresponding to the data copy mode and the first information.
  • the first information is used to indicate the number of copies that each leg can carry. The advantage is that the number of copies and the number of legs In case of inconsistency, determine the relationship between leg and copy.
  • the base station notifies all the data replication transmission configuration information and the first information through the RRC reconfiguration message.
  • the UE Based on the related configuration information and first information of the data replication transmission mode sent from the network side, determine the number of replicated and transmitted data packets that each logical channel/RLC entity can carry, and perform the logical channel/RLC entity based on the data replication transmission mode Transmission. That is, the UE receives the RRC message from the base station, configures the RLC entity, determines and saves the number of copies that each leg can carry according to the first information, and then transmits it according to the initial copy data transmission mode.
  • the base station determines that it is necessary to change the data replication mode, such as when data replication transmission is activated/deactivated, as shown in Figure 8, the base station sends a data multiplexing transmission change instruction, and the UE changes the data replication transmission mode according to the change instruction; or, as As shown in FIG. 9, the base station sends a data multiplexing transmission change indication and a third indication; the UE determines which leg (ie logical channel/RLC entity) to use for transmission according to the third information, and changes the data replication transmission mode.
  • the base station sends a data multiplexing transmission change instruction, and the UE changes the data replication transmission mode according to the change instruction; or, as As shown in FIG. 9, the base station sends a data multiplexing transmission change indication and a third indication; the UE determines which leg (ie logical channel/RLC entity) to use for transmission according to the third information, and changes the data replication transmission mode.
  • the UE Based on the third information sent from the network side, determine at least part of the logical channels/RLC entities used for replication data transmission among the at least two logical channels/RLC entities; determine that each logical channel/RLC entity in the at least part of the logical channels/RLC entities The number of replicated and transmitted data packets carried by the channel/RLC entity, and the transmission of the logical channel/RLC entity is performed. That is to say, the UE receives a data replication mode change instruction message from the base station, such as MAC CE, and selects the appropriate leg according to the data replication transmission change instruction, or according to the data replication transmission change instruction and the third information, to activate or deactivate it. Activation operation, and subsequent copy data transmission.
  • a data replication mode change instruction message from the base station, such as MAC CE
  • the UE and the base station negotiate to determine the number of copies carried on the leg, and/or which leg is used to transmit data.
  • the second information and the third information are negotiated and determined by the UE and the base station.
  • the advantage is that it gives the UE a flexible choice while ensuring the base station's control over the UE.
  • the third information and the second information may be determined by the network device. That is, to obtain the second information based on the RRC reconfiguration message, that is, to determine the total number of copies carried on the leg according to the RRC reconfiguration message; to obtain the third information based on one of RRC, MAC CE, and DCI, that is Determine which leg to use to transmit data according to the RRC/MAC CE/DCI indication.
  • the second information is indicated by the first information element in the logical channel/RLC entity configuration information; or, the second information is indicated by the second information element in the RLC entity configuration information; or, the second information , Indicated in the PDCP entity configuration information.
  • one of the second information formats adding a first information element IE to the logical channel configuration LogicalChannelConfig; another example, for the second information format, adding a second information element IE to the RLC entity configuration information, such as RLC-BearerConfig.
  • the third information may be indicated by dedicated information, and the third information may be one of MAC CE, DCI message, and RRC message.
  • the third information may be one of MAC CE, DCI message, and RRC message.
  • different columns correspond to different DRB IDs; different rows correspond to different logical channels/RLC entities associated with the DRB; and the bits in different rows and columns represent the logic of the corresponding position Whether the channel/RLC entity transmits replicated data;
  • different rows correspond to different DRB IDs; different columns correspond to different logical channels/RLC entities associated with different DRBs; and the corresponding positions are represented by the bits in different rows and different columns Whether the logical channel/RLC entity transmits replicated data.
  • the optional third information format is shown in Fig. 10 for example: if the dedicated signaling is MAC CE.
  • the introduction of 4byte MAC CE is used to indicate the activation/deactivation status of the data copy transmission of each leg, 0 means deactivation, and 1 means activation. Or, it is used to indicate whether each leg transmits PDCP PDU or its copy.
  • Different columns correspond to different DRB IDs, and the corresponding methods are consistent with the existing protocol; different rows correspond to different logical channels/RLC entities associated with a certain DRB; the value in the bit indicates whether the RLC entity is used to transmit replicated data.
  • FIG. 11 it is similar to the description in FIG. 10, except that the vertical columns are changed to horizontal rows, which will not be repeated.
  • the base station determines whether to use the data replication transmission mode and related configuration information of the data replication transmission mode.
  • the base station determines to use the data copy transmission mode, and informs the UE of the configuration information corresponding to the data copy mode and second information, where the second information is used to indicate the total number of copies of the bearer.
  • the base station notifies all the data replication transmission configuration information and the second information through the RRC reconfiguration message.
  • the UE Based on the related configuration information and second information of the data replication transmission mode sent from the network side, determine the number of replicated and transmitted data packets that each logical channel/RLC entity can carry, and perform the logical channel/RLC entity based on the data replication transmission mode Transmission. That is, the UE receives the RRC message from the base station, configures the logical channel/RLC entity, determines and saves the number of copies that each leg can carry according to the second information, and then transmits it according to the initial copy data transmission mode.
  • the base station determines that the data replication mode needs to be changed, such as when data replication transmission is activated/deactivated, it sends a data multiplexing transmission change instruction, and the UE changes the data replication transmission mode according to the change instruction; or the base station sends a data multiplexing transmission change instruction And a third indication; the UE determines which leg (ie logical channel/RLC entity) to use for transmission according to the third information, and determines the number of data packets carried in each logical channel/RLC entity.
  • the base station determines that the data replication mode needs to be changed, such as when data replication transmission is activated/deactivated, it sends a data multiplexing transmission change instruction, and the UE changes the data replication transmission mode according to the change instruction; or the base station sends a data multiplexing transmission change instruction And a third indication; the UE determines which leg (ie logical channel/RLC entity) to use for transmission according to the third information, and determines the number of data packets carried in each logical channel/RLC
  • the UE Based on the third information sent from the network side, determine at least part of the logical channels/RLC entities used for replication data transmission among the at least two logical channels/RLC entities; determine that each logical channel/RLC entity in the at least part of the logical channels/RLC entities The number of replicated and transmitted data packets carried by the channel/RLC entity, and the transmission of the logical channel/RLC entity is performed. That is to say, the UE receives a data replication mode change instruction message from the base station, such as MAC CE, and selects the appropriate leg according to the data replication transmission change instruction, or according to the data replication transmission change instruction and the third information, to activate or deactivate it. Activation operation, and subsequent copy data transmission.
  • a data replication mode change instruction message from the base station, such as MAC CE
  • This embodiment provides a method for processing data replication and transmission, which is applied to a network device. As shown in FIG. 13, the method includes:
  • Step 31 Send at least one of the first information, the second information, and the third information to the terminal device;
  • the first information includes the number of replicated and transmitted data packets that can be carried by different logical channels/RLC entities;
  • the second information includes the total number of replicated and transmitted data packets that can be carried in the logical channel/RLC entity;
  • the third information includes a logical channel/RLC entity used to transmit the data packet for replication transmission.
  • Leg means that a data packet of a PDCP entity can be transmitted by multiple corresponding RLC entities or logical channels/RLC entities during data replication and transmission, and one of the corresponding RLC entities or logical channels can be called a leg.
  • the number of legs is n.
  • At least one of the first information, the second information, and the third information in this embodiment may be determined by the terminal device, and of course may also be determined by the network side.
  • the first information is determined by the terminal device
  • the second information and the third information can be determined by the network side and sent to the terminal device; or the first information and the second information are determined by the terminal device, and the third information is determined by the network side.
  • the terminal equipment and the network equipment respectively determine different information, which is a case, that is, the information determined by the terminal equipment does not overlap with the information sent by the network equipment.
  • the terminal device and the network device may also be a situation where the terminal device and the network device have determined the same information, that is, the information determined by the terminal device itself and the information sent by the network device are partially duplicated.
  • the terminal device itself determines the third Information and the third information sent by the network device is received.
  • the terminal device or the information indicated by the network device can be determined according to a preset rule.
  • the preset rules may include one of the following: the information determined by the terminal device is the final use information; the information sent by the network device is the final use information; the information determined from the terminal device, and the information sent by the network device choose one of the information as the final use information; the terminal equipment and the network equipment negotiate to obtain the final use information; the terminal equipment determines the final information according to the information sent by the network equipment.
  • the terminal device itself determines the second information, but also receives the second information from the network device; in this case, it can be determined according to the rules, and the terminal device uses the second information determined by itself for subsequent processing; or, determines according to the rules Based on the network device, that is, the second information sent by the network device is used for subsequent processing. Or it can be determined according to other rules and will not be repeated here.
  • the second information is used as an example for detailed description. It is understandable that the first information, the second information, and the third information are all processed using the above-mentioned rules, but this embodiment will not be exhaustive.
  • the network device may determine at least one of the first information, the second information, and the third information based on at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, and reliability.
  • the channel quality of a certain logical channel/RLC entity when the channel quality of a certain logical channel/RLC entity is good, it can be determined in the first information that the logical channel/RLC entity carries more data packets, and/or the third information is determined Use the logical channel/RLC entity to transmit data packets for transmission replication transmission; when the quality of a certain logical channel/RLC entity is poor, it can be determined that the logical channel/RLC entity is not used for transmission replication in the third information The transmitted data packets, and/or, determine the number of data packets carrying a small number on the logical channel/RLC entity in the first information. For another example, when the service priority of a certain logical channel/RLC entity is higher, it may be determined first to transmit more or less data packets on the logical channel/RLC entity.
  • a predetermined threshold of a logical channel/RLC entity such as a higher threshold for transmitting data packets, and/or higher reliability, and/or lower delay, can be used in the logical channel/RLC entity
  • a predetermined threshold of a logical channel/RLC entity such as a higher threshold for transmitting data packets, and/or higher reliability, and/or lower delay
  • the second information is taken as an example: the second information is determined by the base station. Or, the second information is determined by the UE itself. Or, the second information is jointly determined by the UE and the base station.
  • the method for the network device to send the second information may be: sending the second information to the terminal device based on the RRC reconfiguration message; and may also include: sending the updated second information based on one of RRC, MAC CE, and DCI. That is, the initial second information is determined according to the RRC reconfiguration message, and the updated second information is determined according to the RRC/MAC CE/DCI indication.
  • the terminal device determines which leg (ie, logical channel/RLC entity) to select to transmit data according to the third information.
  • the third information is determined by the base station, or determined by the UE itself, or jointly determined by the UE and the base station.
  • the third information may be transmitted in a manner that the terminal device obtains the third information according to a dedicated message, such as determining the third information according to an RRC/MAC CE/DCI indication.
  • the terminal device may be a user equipment UE, and the network device may be a base station on the network side.
  • the first information is determined by the base station, or determined by the UE itself, or jointly determined by the UE and the base station.
  • the transmission mode of the first information may be that the terminal device obtains the third information according to a dedicated message, such as determining the third information according to an RRC/MAC CE/DCI indication.
  • the UE may determine the first information according to at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, reliability, third information, and second information.
  • the relevant information can be determined according to the relationship between the first information, the second information, and the third information. It can be said that at least one of the first information, the second information, and the third information may also be determined based on at least one of the first information, the second information, and the third information other than the information.
  • the first information may also be determined according to at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, reliability, second information, and third information.
  • the several solutions provided in this embodiment may include:
  • the number of copies carried on the leg is determined, and the UE determines which leg is used to transmit data by itself.
  • the UE determines the number of copies and/or the total number of copies carried by each leg.
  • the terminal device itself determines the second information and the third information.
  • the first information can also be determined by the terminal device, or sent from the network side.
  • the terminal device can determine the number of copies carried on the leg according to the second information.
  • the method for determining the first information, the second information, and the third information by itself may be:
  • the terminal device determines the first information, the second information, and the third information based on at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, and reliability.
  • the channel quality of a certain logical channel/RLC entity when the channel quality of a certain logical channel/RLC entity is good, it can be determined in the first information that the logical channel/RLC entity carries more data packets, and/or the third information is determined Use the logical channel/RLC entity to transmit data packets for transmission replication transmission; when the quality of a certain logical channel/RLC entity is poor, it can be determined that the logical channel/RLC entity is not used for transmission replication in the third information The transmitted data packets, and/or, determine the number of data packets carrying a small number on the logical channel/RLC entity in the first information. For another example, when the service priority of a certain logical channel/RLC entity is higher, it may be determined first to transmit more or less data packets on the logical channel/RLC entity.
  • the predetermined threshold of a certain logical channel/RLC entity such as a higher threshold for transmitting data packets and higher reliability, can be allocated more for transmission replication on the logical channel/RLC entity The number of data packets, and vice versa, a smaller number of data packets are allocated.
  • the terminal device determines the number of data packets that can be carried by different logical channels/RLC entities based on the determined first information; then determines the total number of data packets based on the second information; The total number of packets and the number of data packets that can be carried by each logical channel/RLC entity; the third information is determined to determine the logical channel/RLC entity used this time. Finally, based on the logical channel/RLC entity to be used this time, the number of data packets carried in each logical channel/RLC entity is determined.
  • the second information is determined according to the selected leg and the first information, that is, according to the selected logical channel/RLC entity (ie leg) and the data packets that can be replicated and transmitted by each logical channel/RLC entity Quantity, to determine the total number of data packets carried in the logical channel/RLC entity this time.
  • the base station that is, the network side
  • the base station first determines the configuration of data replication transmission and data replication transmission, and sends the existing data transmission configuration to the terminal device; the terminal device performs the data replication transmission configuration according to the initial configuration
  • the mode controls the transmission of the logical channel/RLC entity; the terminal device receives the data multiplexing transmission change instruction sent by the network-side base station.
  • the change instruction may only be an instruction that requires the terminal device to change the transmission mode, and it does not specify the specific Then, the terminal device itself determines the third information, determines which leg that is the logical channel/RLC entity to use for transmission, and determines the second information itself, and determines the location of each leg (logical channel or RLC entity) based on the second information
  • the number of copies carried that is, the number of data packets that are copied and transmitted.
  • the first information can be determined when the terminal device determines the second information and the third information, and the method used can be as before. I will not repeat it here.
  • the first information can also be sent by the network side, that is, the network side, for example, the base station informs the bearer that the total number of copies supported by the bearer is configured as x, and the UE decides on its own that the bearer can be transmitted on at least one RLC entity corresponding to the configuration The number of copies. For example, if a bearer is configured with 3 logical channels, and 3 logical channels are selected for transmission, the total number of copies supported by the bearer is 6, and the terminal device determines that the number of copies for each logical channel is 1, 2, and 3.
  • the advantage of the processing method provided in this scenario is that it gives the UE a flexible choice.
  • the second information is sent by the network side, and the first information and the third information can be determined by the terminal device.
  • the UE determines the total number of copies carried on the leg according to the RRC reconfiguration message, and the UE determines which leg is used to transmit data by itself.
  • the second information is sent based on the RRC reconfiguration message.
  • the method may further include: sending updated second information based on one of RRC, MAC CE, and DCI.
  • the third information is determined by the terminal device itself.
  • the advantage is that the terminal device is more aware of the channel quality information and can flexibly select a suitable carrier or logical channel/RLC entity to improve the reliability of data transmission.
  • the base station (that is, the network side) first determines the configuration of data replication transmission and data replication transmission and the second information, and sends the existing data transmission configuration and the second information to the terminal device; the terminal device determines according to the second information
  • Each leg corresponds to the number of copies carried, and executes the data copy transmission configuration, controls the transmission of the logical channel/RLC entity according to the initial mode configured therein; receives the data copy transmission change indication information from the base station.
  • the terminal device determines that the DRB changes the data replication transmission mode, determines the third information by itself, and determines which leg (logical channel/RLC entity) to use for transmission based on the third information.
  • the base station that is, the network side first determines the configuration of data replication transmission and data replication transmission and the second information, and sends the data transmission configuration and/or the second information to the terminal device; the terminal device determines according to the second information
  • Each leg corresponds to the number of copies carried, and executes the data copy transmission configuration, controls the transmission of the logical channel/RLC entity according to the initial mode configured therein; receives the data copy transmission change instruction from the network side base station Information, and second information; according to the change instruction, determine the DRB to change the data replication transmission mode, determine the third information by itself, and determine which leg (logical channel/RLC entity) to use for transmission based on the third information.
  • the third information is sent by the network side, and the first information and the second information can be determined by the terminal device. That is, the terminal device determines the number of copies carried on the leg by itself, and determines which leg is used to transmit data according to dedicated information such as RRC/MAC CE/DCI instructions.
  • the receiving at least one of the first information, the second information, and the third information sent from the network side includes:
  • the third information is sent; where the third information is used to indicate the logical channel/RLC entity used for initial configuration data replication transmission.
  • the method further includes:
  • the updated third information may be a logical channel/RLC entity used for obtaining the updated copy transmission.
  • the second information is determined by the UE itself.
  • the advantage is that the UE is more aware of channel quality information and can flexibly choose which leg to transmit more copies to achieve the purpose of minimizing the number of transmissions and improving the reliability of data transmission ( For example, choosing a better leg to transmit more copies and a better leg to transmit fewer copies can reduce the number of retransmissions, improve reliability, and reduce transmission delay).
  • the base station informs the bearer that the total number of copies supported by the bearer is configured to be x, and the UE determines the number of copies that can be transmitted on at least one RLC entity corresponding to the bearer.
  • the UE determines that the number of copies of each logical channel/RLC entity is 1, 2, 3.
  • the base station (that is, the network side) first determines the configuration of data replication transmission and data replication transmission, and sends the existing data transmission configuration to the terminal device; the terminal device executes the data replication transmission configuration, Control the transmission of the logical channel/RLC entity according to the initial mode configured therein; upon receiving the data replication transmission change instruction information and the third information from the base station, the terminal device further changes the data replication transmission mode according to the change instruction, and determines based on the third information Which leg (logical channel/RLC entity) to use for transmission. Determine the second information by itself, and determine the number of copies of the bearer corresponding to each leg (logical channel/RLC entity) based on the second information.
  • the configured initial mode control logical channel/RLC entity may also be the third information.
  • the third information and the first information may be determined by the network device. That is, based on the RRC reconfiguration message, the first information is sent, that is, the number of copies carried on each leg is determined according to the RRC reconfiguration message; the third information is sent based on one of RRC, MAC CE, and DCI, That is, according to the RRC/MAC CE/DCI instructions, determine which leg to use to transmit data.
  • the first information is indicated by a first information element in logical channel/RLC entity configuration information; or, the first information is indicated by a second information element in RLC entity configuration information.
  • one of the first information formats add a first information element IE to the logical channel/RLC entity configuration LogicalChannelConfig; for another example, the second information format, add second information to the RLC entity configuration information, such as RLC-BearerConfig Element IE.
  • the specific format can be the same as that in the first embodiment, and will not be repeated here.
  • the third information may be indicated by dedicated information, and the third information may be one of MAC CE, DCI message, and RRC message.
  • the third information may be one of MAC CE, DCI message, and RRC message.
  • different columns correspond to different DRB IDs; different rows correspond to different RLC entities associated with the DRB; and bits in different rows and columns indicate whether the RLC entity at the corresponding position is transmitting Copy data
  • different rows correspond to different DRB IDs; different columns correspond to different RLC entities associated with different DRBs; and the bits in different rows and columns indicate whether the RLC entity at the corresponding position is Transfer copied data.
  • the dedicated signaling is MAC CE.
  • the introduction of 4byte MAC CE is used to indicate the activation/deactivation status of the data copy transmission of each leg, 0 means deactivation, and 1 means activation. Or, it is used to indicate whether each leg transmits PDCP PDU or its copy.
  • Different columns correspond to different DRB IDs, and the corresponding methods are consistent with the existing protocol; different rows correspond to different RLC entities associated with a certain DRB; the value in the bit indicates whether the RLC entity is used to transmit the copied data.
  • MCG has 2 DRBs configured with the replication data transmission function, and the DRB IDs are 0, 3, 5, and 7 respectively;
  • the format of MAC CE is 4 bytes, so from column 1 to column 4 corresponding to these DRBs in ascending order of DRB ID at a time.
  • columns D0, D1, D2, and D3 correspond to DRB ID 0, 3, 5, and 7, respectively.
  • Different rows in each column indicate which RLC entities are used to transmit replicated data. Specifically, in this example, a maximum of 4 RLC entities may be used to transmit replicated data. Sort in the order of MCG first, then SCG, and sort the logical channel ID in ascending or descending order within each CG. Or, sort according to the order of SCG first and then MCG, and sort the logical channel IDs in ascending or descending order within each CG. For example, for each row of DRB0, from top to bottom, they represent RLC entities 0, 1, 2, and 3.
  • FIG. 11 it is similar to the description in FIG. 10, except that the vertical columns are changed to horizontal rows, which will not be repeated.
  • the UE and the base station negotiate to determine the number of copies carried on the leg, and/or which leg is used to transmit data.
  • the second information and the third information are negotiated and determined by the UE and the base station.
  • the advantage is that it gives the UE a flexible choice while ensuring the base station's control over the UE.
  • the third information and the second information may be determined by the network device. That is, to obtain the second information based on the RRC reconfiguration message, that is, to determine the total number of copies carried on the leg according to the RRC reconfiguration message; to obtain the third information based on one of RRC, MAC CE, and DCI, that is Determine which leg to use to transmit data according to the RRC/MAC CE/DCI indication.
  • the second information is indicated by the first information element in the logical channel/RLC entity configuration information; or, the second information is indicated by the second information element in the RLC entity configuration information; or, the second information , Indicated in the PDCP entity configuration information.
  • one of the second information formats adding a first information element IE to the logical channel configuration LogicalChannelConfig; another example, for the second information format, adding a second information element IE to the RLC entity configuration information, such as RLC-BearerConfig.
  • the third information may be indicated by dedicated information, and the third information may be one of MAC CE, DCI message, and RRC message.
  • the third information may be one of MAC CE, DCI message, and RRC message.
  • different columns correspond to different DRB IDs; different rows correspond to different RLC entities associated with the DRB; and bits in different rows and columns indicate whether the RLC entity at the corresponding position is transmitting Copy data
  • different rows correspond to different DRB IDs; different columns correspond to different RLC entities associated with different DRBs; and the bits in different rows and columns indicate whether the RLC entity at the corresponding position is Transfer copied data.
  • the optional third information format is shown in Fig. 10 for example: if the dedicated signaling is MAC CE.
  • the introduction of 4byte MAC CE is used to indicate the activation/deactivation status of the data copy transmission of each leg, 0 means deactivation, and 1 means activation. Or, it is used to indicate whether each leg transmits PDCP PDU or its copy.
  • Different columns correspond to different DRB IDs, and the corresponding methods are consistent with the existing protocol; different rows correspond to different RLC entities associated with a certain DRB; the value in the bit indicates whether the RLC entity is used to transmit the copied data.
  • FIG. 11 it is similar to the description in FIG. 10, except that the vertical columns are changed to horizontal rows, which will not be repeated.
  • the base station determines whether to use the data replication transmission mode and related configuration information of the data replication transmission mode.
  • the base station determines to use the data copy transmission mode, and informs the UE of the configuration information corresponding to the data copy mode and second information, where the second information is used to indicate the total number of copies of the bearer.
  • the base station notifies all the data replication transmission configuration information and the second information through the RRC reconfiguration message.
  • the UE Based on the related configuration information and second information of the data replication transmission mode sent from the network side, determine the number of replicated and transmitted data packets that each logical channel/RLC entity can carry, and perform the logical channel/RLC entity based on the data replication transmission mode Transmission. That is, the UE receives the RRC message from the base station, configures the RLC entity, determines and saves the number of copies that each leg can carry according to the second information, and then transmits it according to the initial copy data transmission mode.
  • the base station determines that the data replication mode needs to be changed, such as when data replication transmission is activated/deactivated, it sends a data multiplexing transmission change instruction, and the UE changes the data replication transmission mode according to the change instruction; or the base station sends a data multiplexing transmission change instruction And a third indication; the UE determines which leg (ie logical channel/RLC entity) to use for transmission according to the third information, and determines the number of data packets carried in each logical channel/RLC entity.
  • the base station determines that the data replication mode needs to be changed, such as when data replication transmission is activated/deactivated, it sends a data multiplexing transmission change instruction, and the UE changes the data replication transmission mode according to the change instruction; or the base station sends a data multiplexing transmission change instruction And a third indication; the UE determines which leg (ie logical channel/RLC entity) to use for transmission according to the third information, and determines the number of data packets carried in each logical channel/RLC
  • the UE Based on the third information sent from the network side, determine at least part of the logical channels/RLC entities used for replication data transmission among the at least two logical channels/RLC entities; determine that each logical channel/RLC entity in the at least part of the logical channels/RLC entities The number of replicated and transmitted data packets carried by the channel/RLC entity, and the transmission of the logical channel/RLC entity is performed. That is to say, the UE receives a data replication mode change instruction message from the base station, such as MAC CE, and selects the appropriate leg according to the data replication transmission change instruction, or according to the data replication transmission change instruction and the third information, to activate or deactivate it. Activation operation, and subsequent copy data transmission.
  • a data replication mode change instruction message from the base station, such as MAC CE
  • This embodiment provides a terminal device. As shown in FIG. 14, the method includes:
  • the first processing unit 41 determines the duplicate transmission transmitted by each logical channel/RLC entity in at least part of the logical channel/RLC entity of the at least one logical channel/RLC entity The number of data packets;
  • the first information includes the number of replicated and transmitted data packets that can be carried by different logical channels/RLC entities;
  • the second information includes the total number of replicated and transmitted data packets that can be carried in the logical channel/RLC entity;
  • the third information includes a logical channel/RLC entity used to transmit the data packet for replication transmission.
  • Leg means that a data packet of a PDCP entity can be transmitted by multiple corresponding RLC entities or logical channels/RLC entities during data replication and transmission, and one of the corresponding RLC entities or logical channels can be called a leg.
  • the number of legs is n.
  • the first processing unit 41 determines at least one of first information, second information, and third information based on at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, and reliability .
  • the terminal device further includes: a first communication unit 42 that receives at least one of the first information, the second information, and the third information sent from the network side.
  • At least one of the first information, the second information, and the third information in this embodiment may be determined by the terminal device, and of course may also be determined by the network side.
  • the first information is determined by the terminal device
  • the second information and the third information can be determined by the network side and sent to the terminal device; or the first information and the second information are determined by the terminal device, and the third information is determined by the network side.
  • the terminal equipment and the network equipment respectively determine different information, which is a case, that is, the information determined by the terminal equipment does not overlap with the information sent by the network equipment.
  • the terminal device and the network device may also be a situation where the terminal device and the network device have determined the same information, that is, the information determined by the terminal device itself and the information sent by the network device are partially duplicated.
  • the terminal device itself determines the third Information and the third information sent by the network device is received.
  • the terminal device or the information indicated by the network device can be determined according to a preset rule.
  • the preset rules may include one of the following: the information determined by the terminal device is the final use information; the information sent by the network device is the final use information; the information determined from the terminal device, and the information sent by the network device choose one of the information as the final use information; the terminal equipment and the network equipment negotiate to obtain the final use information; the terminal equipment determines the final information according to the information sent by the network equipment.
  • the terminal device itself determines the second information, but also receives the second information from the network device; in this case, it can be determined according to the rules, and the terminal device uses the second information determined by itself for subsequent processing; or, determines according to the rules Based on the network device, that is, the second information sent by the network device is used for subsequent processing. Or it can be determined according to other rules and will not be repeated here.
  • the second information is used as an example for detailed description. It is understandable that the first information, the second information, and the third information are all processed using the above-mentioned rules, but this embodiment will not be exhaustive.
  • the first processing unit 41 determines at least one of the first information, the second information, and the third information based on at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, and reliability.
  • the channel quality of a certain logical channel/RLC entity when the channel quality of a certain logical channel/RLC entity is good, it can be determined in the first information that the logical channel/RLC entity carries more data packets, and/or the third information is determined Use the logical channel/RLC entity to transmit data packets for transmission replication transmission; when the quality of a certain logical channel/RLC entity is poor, it can be determined that the logical channel/RLC entity is not used for transmission replication in the third information The transmitted data packets, and/or, determine the number of data packets carrying a small number on the logical channel/RLC entity in the first information. For another example, when the service priority of a certain logical channel/RLC entity is higher, it may be determined first to transmit more or less data packets on the logical channel/RLC entity.
  • a predetermined threshold of a logical channel/RLC entity such as a higher threshold for transmitting data packets, and/or higher reliability, and/or lower delay, can be used in the logical channel/RLC entity
  • a predetermined threshold of a logical channel/RLC entity such as a higher threshold for transmitting data packets, and/or higher reliability, and/or lower delay
  • the second information is taken as an example in this embodiment: the second information is determined by the base station. Or, the second information is determined by the UE itself. Or, the second information is jointly determined by the UE and the base station.
  • the first communication unit 42 obtains the second information based on the RRC reconfiguration message; the first communication unit 42 may also obtain the updated second information based on one of RRC, MAC CE, and DCI. That is, the initial second information is determined according to the RRC reconfiguration message, and the updated second information is determined according to the RRC/MAC CE/DCI indication.
  • the terminal device determines which leg (ie, logical channel/RLC entity) to select to transmit data according to the third information.
  • the third information is determined by the base station, or determined by the UE itself, or jointly determined by the UE and the base station.
  • the third information may be transmitted in a manner that the terminal device obtains the third information according to a dedicated message, such as determining the third information according to an RRC/MAC CE/DCI indication.
  • the first information is determined by the base station, or determined by the UE itself, or jointly determined by the UE and the base station.
  • the transmission mode of the first information may be that the terminal device obtains the third information according to a dedicated message, such as determining the third information according to an RRC/MAC CE/DCI indication.
  • the UE may determine the first information according to at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, reliability, third information, and second information.
  • the relevant information can be determined according to the relationship between the first information, the second information, and the third information. It can be said that at least one of the first information, the second information, and the third information may also be determined based on at least one of the first information, the second information, and the third information other than the information.
  • the first information may also be determined according to at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, reliability, second information, and third information.
  • the several solutions provided in this embodiment may include:
  • the number of copies carried on the leg is determined, and the UE determines which leg is used to transmit data by itself.
  • the UE determines the number of copies and/or the total number of copies carried by each leg.
  • the terminal device itself determines the second information and the third information.
  • the first information can also be determined by the terminal device, or sent from the network side.
  • the terminal device can determine the number of copies carried on the leg according to the second information.
  • the method for determining the first information, the second information, and the third information by itself may be:
  • the first processing unit 41 determines the first information, the second information, and the third information based on at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, and reliability.
  • the channel quality of a certain logical channel/RLC entity when the channel quality of a certain logical channel/RLC entity is good, it can be determined in the first information that the logical channel/RLC entity carries more data packets, and/or the third information is determined Use the logical channel/RLC entity to transmit data packets for transmission replication transmission; when the quality of a certain logical channel/RLC entity is poor, it can be determined that the logical channel/RLC entity is not used for transmission replication in the third information The transmitted data packets, and/or, determine the number of data packets carrying a small number on the logical channel/RLC entity in the first information. For another example, when the service priority of a certain logical channel/RLC entity is higher, it may be determined first to transmit more or less data packets on the logical channel/RLC entity.
  • the predetermined threshold of a certain logical channel/RLC entity such as a higher threshold for transmitting data packets and higher reliability, can be allocated more for transmission replication on the logical channel/RLC entity The number of data packets, and vice versa, a smaller number of data packets are allocated.
  • the first processing unit 41 determines, according to the determined first information, the number of amplitude transmission data packets that can be carried by different logical channels/RLC entities; and then determines the total number of data packets according to the second information ; Then based on the total number of data packets and the number of data packets that each logical channel/RLC entity can carry; and then determine the third information to determine the logical channel/RLC entity used this time. Finally, based on the logical channel/RLC entity to be used this time, the number of data packets carried in each logical channel/RLC entity is determined.
  • the second information is determined according to the selected leg and the first information, that is, according to the selected logical channel/RLC entity (ie leg) and the data packets that can be replicated and transmitted by each logical channel/RLC entity Quantity, to determine the total number of data packets carried in the logical channel/RLC entity this time.
  • the advantage of the processing method provided in this scenario is that it gives the UE a flexible choice.
  • the second information is sent by the network side, and the first information and the third information can be determined by the terminal device.
  • the UE determines the total number of copies carried on the leg according to the RRC reconfiguration message, and the UE determines which leg is used to transmit data by itself.
  • the first communication unit 42 obtains the second information based on the RRC reconfiguration message.
  • the first communication unit 42 obtains updated second information based on one of RRC, MAC CE, and DCI.
  • the first processing unit 41 determines the number of replicated and transmitted data packets that each logical channel/RLC entity can carry based on the related configuration information of the data replication transmission mode and the second information sent from the network side, and Logical channel/RLC entity transmission based on data replication transmission mode.
  • the number of data packets also includes:
  • the third information determine at least part of the logical channel/RLC entity used for replication data transmission among the at least two logical channels/RLC entities; determine that each logical channel/RLC entity carries the at least part of the logical channel/RLC entity Copy the number of data packets transmitted, and perform the transmission of the logical channel/RLC entity.
  • the third information is determined by the terminal device itself.
  • the advantage is that the terminal device is more aware of the channel quality information and can flexibly select a suitable carrier or logical channel/RLC entity to improve the reliability of data transmission.
  • the third information is sent by the network side, and the first information and the second information can be determined by the terminal device. That is, the terminal device determines the number of copies carried on the leg by itself, and determines which leg is used to transmit data according to dedicated information such as RRC/MAC CE/DCI instructions.
  • the first communication unit 42 obtains third information based on one of RRC, MAC CE, and DCI; wherein, the third information is used to indicate the logical channel/RLC entity used for initial configuration data replication transmission .
  • the first communication unit 42 obtains updated third information based on one of RRC, MAC CE, and DCI.
  • the updated third information may be a logical channel/RLC entity used for obtaining the updated copy transmission.
  • the second information is determined by the UE itself.
  • the advantage is that the UE is more aware of channel quality information and can flexibly choose which leg to transmit more copies to achieve the purpose of minimizing the number of transmissions and improving the reliability of data transmission ( For example, choosing a better leg to transmit more copies and a better leg to transmit fewer copies can reduce the number of retransmissions, improve reliability, and reduce transmission delay).
  • the base station informs the bearer that the total number of copies supported by the bearer is configured to be x, and the UE determines the number of copies that can be transmitted on at least one RLC entity corresponding to the bearer.
  • the UE determines that the number of copies of each logical channel/RLC entity is 1, 2, 3.
  • the third information and the first information may be determined by the network device. That is, the first information is obtained based on the RRC reconfiguration message, that is, the number of copies carried on each leg is determined according to the RRC reconfiguration message; the third information is obtained based on one of RRC, MAC CE, and DCI, That is, according to the RRC/MAC CE/DCI instructions, determine which leg to use to transmit data.
  • the first information is indicated by a first information element in the logical channel/RLC entity configuration information; or, the first information is indicated by a second information element in the RLC entity configuration information.
  • one of the first information formats add a first information element IE to the logical channel/RLC entity configuration LogicalChannelConfig
  • another example is the first information format
  • RLC-BearerConfig Element IE add second information to the RLC entity configuration information.
  • the third information may be indicated by dedicated information, and the third information may be one of MAC CE, DCI message, and RRC message.
  • the third information may be one of MAC CE, DCI message, and RRC message.
  • different columns correspond to different DRB IDs; different rows correspond to different RLC entities associated with the DRB; and bits in different rows and columns indicate whether the RLC entity at the corresponding position is transmitting Copy data
  • different rows correspond to different DRB IDs; different columns correspond to different RLC entities associated with different DRBs; and the bits in different rows and columns indicate whether the RLC entity at the corresponding position is Transfer copied data.
  • the dedicated signaling is MAC CE.
  • the introduction of 4byte MAC CE is used to indicate the activation/deactivation status of the data copy transmission of each leg, 0 means deactivation, and 1 means activation. Or, it is used to indicate whether each leg transmits PDCP PDU or its copy.
  • Different columns correspond to different DRB IDs, and the corresponding methods are consistent with the existing protocol; different rows correspond to different RLC entities associated with a certain DRB; the value in the bit indicates whether the RLC entity is used to transmit the copied data.
  • FIG. 11 it is similar to the description in FIG. 10, except that the vertical columns are changed to horizontal rows, which will not be repeated.
  • the first communication unit determines at least one of the first information, the second information, and the third information through negotiation with the network side. That is, the UE and the base station negotiate to determine the number of copies carried on the leg, and/or which leg is used to transmit data.
  • the second information and the third information are negotiated and determined by the UE and the base station.
  • the advantage is that it gives the UE a flexible choice while ensuring the base station's control over the UE.
  • the third information and the second information may be determined by the network device. That is, the first communication unit obtains the second information based on the RRC reconfiguration message, that is, determines the total number of copies carried on the leg according to the RRC reconfiguration message; the first communication unit uses the RRC, MAC CE, and One of the DCI, the third information is obtained, that is, the leg is determined to transmit data according to the RRC/MAC CE/DCI indication.
  • the second information is indicated by the first information element in the logical channel/RLC entity configuration information; or, the second information is indicated by the second information element in the RLC entity configuration information; or, the second information , Indicated in the PDCP entity configuration information.
  • one of the second information formats add the first information element IE to the logical channel/RLC entity configuration LogicalChannelConfig; for another example, the second information format, add second information to the RLC entity configuration information, such as RLC-BearerConfig Element IE.
  • the third information may be indicated by dedicated information, and the third information may be one of MAC CE, DCI message, and RRC message.
  • the third information may be one of MAC CE, DCI message, and RRC message.
  • different columns correspond to different DRB IDs; different rows correspond to different RLC entities associated with the DRB; and bits in different rows and columns indicate whether the RLC entity at the corresponding position is transmitting Copy data; or, in one of the MAC CE, DCI messages, and RRC messages, different rows correspond to different DRB IDs; different columns correspond to different RLC entities associated with different DRBs; and correspond to different rows and different columns of bits Whether the RLC entity at the location transmits replicated data.
  • This embodiment provides a network device. As shown in FIG. 15, the method includes:
  • the second communication unit 51 sends at least one of the first information, the second information, and the third information to the terminal device;
  • the first information includes the number of replicated and transmitted data packets that can be carried by different logical channels/RLC entities;
  • the second information includes the total number of replicated and transmitted data packets that can be carried in the logical channel/RLC entity;
  • the third information includes a logical channel/RLC entity used to transmit the data packet for replication transmission.
  • Leg means that a data packet of a PDCP entity can be transmitted by multiple corresponding RLC entities or logical channels/RLC entities during data replication and transmission, and one of the corresponding RLC entities or logical channels can be called a leg.
  • the number of legs is n.
  • the network device further includes: a second processing unit 52, which determines at least one of the first information, the second information, and the third information.
  • At least one of the first information, the second information, and the third information in this embodiment may be determined by the terminal device, and of course may also be determined by the network side.
  • the first information is determined by the terminal device
  • the second information and the third information can be determined by the network side and sent to the terminal device; or the first information and the second information are determined by the terminal device, and the third information is determined by the network side.
  • the terminal equipment and the network equipment respectively determine different information, which is a case, that is, the information determined by the terminal equipment does not overlap with the information sent by the network equipment.
  • the terminal device and the network device may also be a situation where the terminal device and the network device have determined the same information, that is, the information determined by the terminal device itself and the information sent by the network device are partially duplicated.
  • the terminal device itself determines the third Information and the third information sent by the network device is received.
  • the terminal device or the information indicated by the network device can be determined according to a preset rule.
  • the preset rules may include one of the following: the information determined by the terminal device is the final use information; the information sent by the network device is the final use information; the information determined from the terminal device, and the information sent by the network device choose one of the information as the final use information; the terminal equipment and the network equipment negotiate to obtain the final use information; the terminal equipment determines the final information according to the information sent by the network equipment.
  • the terminal device itself determines the second information, but also receives the second information from the network device; in this case, it can be determined according to the rules, and the terminal device uses the second information determined by itself for subsequent processing; or, determines according to the rules Based on the network device, that is, the second information sent by the network device is used for subsequent processing. Or it can be determined according to other rules and will not be repeated here.
  • the second information is used as an example for detailed description. It is understandable that the first information, the second information, and the third information are all processed using the above-mentioned rules, but this embodiment will not be exhaustive.
  • the second processing unit 52 determines at least one of the first information, the second information, and the third information based on at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, and reliability.
  • the channel quality of a certain logical channel/RLC entity when the channel quality of a certain logical channel/RLC entity is good, it can be determined in the first information that the logical channel/RLC entity carries more data packets, and/or the third information is determined Use the logical channel/RLC entity to transmit data packets for transmission replication transmission; when the quality of a certain logical channel/RLC entity is poor, it can be determined that the logical channel/RLC entity is not used for transmission replication in the third information The transmitted data packets, and/or, determine the number of data packets carrying a small number on the logical channel/RLC entity in the first information. For another example, when the service priority of a certain logical channel/RLC entity is higher, it may be determined first to transmit more or less data packets on the logical channel/RLC entity.
  • a predetermined threshold of a logical channel/RLC entity such as a higher threshold for transmitting data packets, and/or higher reliability, and/or lower delay, can be used in the logical channel/RLC entity
  • a predetermined threshold of a logical channel/RLC entity such as a higher threshold for transmitting data packets, and/or higher reliability, and/or lower delay
  • the second information is taken as an example in this embodiment: the second information is determined by the base station. Or, the second information is determined by the UE itself. Or, the second information is jointly determined by the UE and the base station.
  • the method for the network device to send the second information may be: sending the second information to the terminal device based on the RRC reconfiguration message; and may also include: sending the updated second information based on one of RRC, MAC CE, and DCI. That is, the initial second information is determined according to the RRC reconfiguration message, and the updated second information is determined according to the RRC/MAC CE/DCI indication.
  • the terminal device determines which leg (ie, logical channel/RLC entity) to select to transmit data according to the third information.
  • the third information is determined by the base station, or determined by the UE itself, or jointly determined by the UE and the base station.
  • the third information may be transmitted in a manner that the terminal device obtains the third information according to a dedicated message, such as determining the third information according to an RRC/MAC CE/DCI indication.
  • the terminal device may be a user equipment UE, and the network device may be a base station on the network side.
  • the first information is determined by the base station, or determined by the UE itself, or jointly determined by the UE and the base station.
  • the transmission mode of the first information may be that the terminal device obtains the third information according to a dedicated message, such as determining the third information according to an RRC/MAC CE/DCI indication.
  • the UE may determine the first information according to at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, reliability, third information, and second information.
  • the relevant information can be determined according to the relationship between the first information, the second information, and the third information. It can be said that at least one of the first information, the second information, and the third information may also be determined based on at least one of the first information, the second information, and the third information other than the information.
  • the first information may also be determined according to at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, reliability, second information, and third information.
  • the several solutions provided in this embodiment may include:
  • the number of copies carried on the leg is determined, and the UE determines which leg is used to transmit data by itself.
  • the UE determines the number of copies and/or the total number of copies carried by each leg.
  • the terminal device itself determines the second information and the third information.
  • the first information can also be determined by the terminal device, or sent from the network side.
  • the terminal device can determine the number of copies carried on the leg according to the second information.
  • the method for determining the first information, the second information, and the third information by itself may be:
  • the terminal device determines the first information, the second information, and the third information based on at least one of channel quality, service characteristics, service priority, predetermined threshold, time delay, and reliability.
  • the channel quality of a certain logical channel/RLC entity when the channel quality of a certain logical channel/RLC entity is good, it can be determined in the first information that the logical channel/RLC entity carries more data packets, and/or the third information is determined Use the logical channel/RLC entity to transmit data packets for transmission replication transmission; when the quality of a certain logical channel/RLC entity is poor, it can be determined that the logical channel/RLC entity is not used for transmission replication in the third information The transmitted data packets, and/or, determine the number of data packets carrying a small number on the logical channel/RLC entity in the first information. For another example, when the service priority of a certain logical channel/RLC entity is higher, it may be determined first to transmit more or less data packets on the logical channel/RLC entity.
  • the predetermined threshold of a certain logical channel/RLC entity such as a higher threshold for transmitting data packets and higher reliability, can be allocated more for transmission replication on the logical channel/RLC entity The number of data packets, and vice versa, a smaller number of data packets are allocated.
  • the terminal device determines the number of data packets that can be carried by different logical channels/RLC entities based on the determined first information; then determines the total number of data packets based on the second information; The total number of packets and the number of data packets that can be carried by each logical channel/RLC entity; the third information is determined to determine the logical channel/RLC entity used this time. Finally, based on the logical channel/RLC entity to be used this time, the number of data packets carried in each logical channel/RLC entity is determined.
  • the second information is determined according to the selected leg and the first information, that is, according to the selected logical channel/RLC entity (ie leg) and the data packets that can be replicated and transmitted by each logical channel/RLC entity Quantity, to determine the total number of data packets carried in the logical channel/RLC entity this time.
  • the second communication unit 51 may also send the first information, that is, the network side, for example, the base station informs the bearer that the total number of copies supported by the bearer is configured as x, and the UE decides on its own at least one RLC corresponding to the bearer configuration.
  • the number of copies that can be transferred on the entity For example, if a bearer is configured with 3 logical channels, and 3 logical channels are selected for transmission, the total number of copies supported by the bearer is 6, and the terminal device determines that the number of copies of each logical channel is 1, 2, and 3.
  • the advantage of the processing method provided in this scenario is that it gives the UE a flexible choice.
  • the second information is sent by the network side, and the first information and the third information can be determined by the terminal device.
  • the UE determines the total number of copies carried on the leg according to the RRC reconfiguration message, and the UE determines which leg is used to transmit data by itself.
  • the second communication unit 51 sends the second information based on the RRC reconfiguration message.
  • the second communication unit 51 sends updated second information based on one of RRC, MAC CE, and DCI.
  • the third information is determined by the terminal device itself.
  • the advantage is that the terminal device is more aware of the channel quality information and can flexibly select a suitable carrier or logical channel/RLC entity to improve the reliability of data transmission.
  • the third information is sent by the network side, and the first information and the second information can be determined by the terminal device. That is, the terminal device determines the number of copies carried on the leg by itself, and determines which leg is used to transmit data according to dedicated information such as RRC/MAC CE/DCI instructions.
  • the second communication unit 51 sends third information based on one of RRC, MAC CE, and DCI; where the third information is used to indicate the logical channel/RLC entity used for initial configuration data replication transmission .
  • the second communication unit 51 obtains updated third information based on one of RRC, MAC CE, and DCI.
  • the updated third information may be a logical channel/RLC entity used for obtaining the updated copy transmission.
  • the second information is determined by the UE itself.
  • the advantage is that the UE is more aware of channel quality information and can flexibly choose which leg to transmit more copies to achieve the purpose of minimizing the number of transmissions and improving the reliability of data transmission ( For example, choosing a better leg to transmit more copies and a better leg to transmit fewer copies can reduce the number of retransmissions, improve reliability, and reduce transmission delay).
  • the base station informs the bearer that the total number of copies supported by the bearer is configured to be x, and the UE determines the number of copies that can be transmitted on at least one RLC entity corresponding to the bearer.
  • the third information and the first information may be determined by the network device. That is, the second communication unit 51 sends the first information based on the RRC reconfiguration message, that is, determines the number of copies carried on the leg according to the RRC reconfiguration message; the second communication unit 51, based on RRC, MAC CE, and DCI In one of them, the third information is sent, that is, which leg is used to transmit data according to the RRC/MAC CE/DCI indication.
  • the first information is indicated by a first information element in logical channel/RLC entity configuration information; or, the second information is indicated by a second information element in RLC entity configuration information.
  • one of the first information formats add a first information element IE to the logical channel/RLC entity configuration LogicalChannelConfig to indicate the second information.
  • a second information element IE is added to the RLC entity configuration information, such as RLC-BearerConfig.
  • the third information may be indicated by dedicated information, and the third information may be one of MAC CE, DCI message, and RRC message.
  • the third information may be one of MAC CE, DCI message, and RRC message.
  • different columns correspond to different DRB IDs; different rows correspond to different RLC entities associated with the DRB; and bits in different rows and columns indicate whether the RLC entity at the corresponding position is transmitting Copy data
  • different rows correspond to different DRB IDs; different columns correspond to different RLC entities associated with different DRBs; and the bits in different rows and columns indicate whether the RLC entity at the corresponding position is Transfer copied data.
  • the dedicated signaling is MAC CE.
  • the introduction of 4byte MAC CE is used to indicate the activation/deactivation status of the data copy transmission of each leg, 0 means deactivation, and 1 means activation. Or, it is used to indicate whether each leg transmits PDCP PDU or its copy.
  • Different columns correspond to different DRB IDs, and the corresponding methods are consistent with the existing protocol; different rows correspond to different RLC entities associated with a certain DRB; the value in the bit indicates whether the RLC entity is used to transmit the copied data.
  • the second communication unit 51 negotiates with the network side to determine at least one of the first information, the second information, and the third information. That is, the UE and the base station negotiate to determine the number of copies carried on the leg, and/or which leg is used to transmit data.
  • the second information and the third information are negotiated and determined by the UE and the base station.
  • the advantage is that it gives the UE a flexible choice while ensuring the base station's control over the UE.
  • the third information and the second information may be determined by the network device. That is, the second communication unit 51 obtains the second information based on the RRC reconfiguration message, that is, determines the total number of copies carried on the leg according to the RRC reconfiguration message; the second communication unit 51 is based on RRC, MAC CE, and One of the DCI, the third information is obtained, that is, the leg is determined to transmit data according to the RRC/MAC CE/DCI indication.
  • the second information is indicated by the first information element in the logical channel/RLC entity configuration information; or, the second information is indicated by the second information element in the RLC entity configuration information.
  • the second communication unit 51 may indicate the third information through dedicated information, and the third information may be one of MAC CE, DCI message, and RRC message.
  • the third information may be one of MAC CE, DCI message, and RRC message.
  • different columns correspond to different DRB IDs; different rows correspond to different RLC entities associated with the DRB; and bits in different rows and columns indicate whether the RLC entity at the corresponding position is transmitting Copy data
  • different rows correspond to different DRB IDs; different columns correspond to different RLC entities associated with different DRBs; and the bits in different rows and columns indicate whether the RLC entity at the corresponding position is Transfer copied data.
  • FIG. 16 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application.
  • the communication device may be the aforementioned terminal device or network device in this embodiment.
  • the communication device 600 shown in FIG. 6 includes a processor 610, and the processor 610 can call and run a computer program from the memory to implement the method in the embodiments of the present application.
  • the communication device 600 may further include a memory 620.
  • the processor 610 can call and run a computer program from the memory 620 to implement the method in the embodiments of the present application.
  • the memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of antennas may be one or more.
  • the communication device 600 may specifically be a network device according to an embodiment of the present application, and the communication device 600 may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. .
  • the communication device 600 may specifically be a terminal device or a network device in an embodiment of the application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the application. It's concise, so I won't repeat it here.
  • FIG. 17 is a schematic structural diagram of a chip of an embodiment of the present application.
  • the chip 700 shown in FIG. 17 includes a processor 710, and the processor 710 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the chip 700 may further include a memory 720.
  • the processor 710 can call and run a computer program from the memory 720 to implement the method in the embodiments of the present application.
  • the memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.
  • the chip 700 may further include an input interface 730.
  • the processor 710 can control the input interface 730 to communicate with other devices or chips. Specifically, it can obtain information or data sent by other devices or chips.
  • the chip 700 may further include an output interface 740.
  • the processor 710 can control the output interface 740 to communicate with other devices or chips. Specifically, it can output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the chip can be applied to the terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application.
  • the chip can implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application.
  • chips mentioned in the embodiments of the present application may also be referred to as system-level chips, system chips, chip systems, or system-on-chip chips.
  • FIG. 18 is a schematic block diagram of a communication system 800 provided by an embodiment of the present application. As shown in FIG. 18, the communication system 800 includes a terminal device 810 and a network device 820.
  • the terminal device 810 can be used to implement the corresponding function implemented by the terminal device in the above method
  • the network device 820 can be used to implement the corresponding function implemented by the network device in the above method.
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments may be completed by instructions in the form of hardware integrated logic circuits or software in the processor.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA ready-made programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in combination with the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature storage medium in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, and a register.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be Read-Only Memory (ROM), Programmable Read-Only Memory (Programmable ROM, PROM), Erasable Programmable Read-Only Memory (Erasable PROM, EPROM), and Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • Synchlink DRAM SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data) SDRAM (DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memories in the embodiments of the present application are intended to include but are not limited to these and any other suitable types of memories.
  • Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium may be applied to the network device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiments of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiments of the present application.
  • the computer-readable storage medium can be applied to the terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, for simplicity And will not be repeated here.
  • An embodiment of the present application also provides a computer program product, including computer program instructions.
  • the computer program product may be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. Repeat again.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, I will not repeat them here.
  • the embodiment of the application also provides a computer program.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program runs on the computer, the computer is allowed to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. And will not be repeated here.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical, or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the technical solution of the present application essentially or part of the contribution to the existing technology or part of the technical solution can be embodied in the form of a software product
  • the computer software product is stored in a storage medium, including Several instructions are used to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé de traitement de transmission et de duplication de données, un dispositif de terminal, un dispositif de réseau, une puce, un support d'informations lisible par ordinateur, un produit-programme d'ordinateur et un programme d'ordinateur. Le procédé consiste : sur la base de premières informations, de deuxièmes informations et de troisièmes informations, à déterminer, dans au moins une partie de l'entité de canal logique/commande de liaison radio (RLC) d'au moins une entité de canal logique/commande RLC, le nombre de paquets de données dupliqués et transmis qui sont transmis par chaque entité de canal logique/commande RLC, les premières informations comprenant le nombre de paquets de données dupliqués et transmis qui peuvent être portés par différentes entités de canal logique/commande RLC, les deuxièmes informations comprenant le nombre total des paquets de données dupliqués et transmis qui peuvent être portés dans les entités de canal logique/commande RLC et les troisièmes informations comprenant les entités de canal logique/commande RLC afin de transmettre les paquets de données dupliqués et transmis.
PCT/CN2019/072057 2019-01-16 2019-01-16 Procédé de traitement de transmission et de duplication de données, dispositif de terminal et dispositif de réseau WO2020147055A1 (fr)

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PCT/CN2019/072057 WO2020147055A1 (fr) 2019-01-16 2019-01-16 Procédé de traitement de transmission et de duplication de données, dispositif de terminal et dispositif de réseau

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