CN112715044B

CN112715044B - Data replication method, terminal equipment and storage medium

Info

Publication number: CN112715044B
Application number: CN201980060361.6A
Authority: CN
Inventors: 唐海
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-01-18
Filing date: 2019-02-01
Publication date: 2024-01-05
Anticipated expiration: 2039-02-01
Also published as: CN112715044A; WO2020147155A1

Abstract

The invention discloses a data replication method, which comprises the following steps: the terminal equipment determines first data copying information based on first information, wherein the first information is information related to resources and/or services, and the first data copying information is used for indicating a data copying mode. The invention also discloses a terminal device and a storage medium.

Description

Data replication method, terminal equipment and storage medium

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to a data replication method, a terminal device, and a storage medium.

Background

In a New Radio (NR) system, three application scenarios are divided based on service requirements, namely enhanced mobile bandwidth (Enhanced Mobile Broadband, eMBB), mass machine class communication (Massive Machine Type Communication, MMTC), and ultra-reliable low latency communication (Ultra reliability and low latency communication, URLLC). In Release15, the concept of data replication and transmission is proposed; in Release16, there is a higher demand for the performance of data copy transmission.

Disclosure of Invention

In order to solve the technical problems, embodiments of the present invention provide a data replication method, a terminal device, and a storage medium, which improve the performance of data replication and transmission.

In a first aspect, an embodiment of the present invention provides a data replication method, where the method includes determining, by a terminal device, first data replication information based on first information; the first information is information related to resources and/or services, and the first data replication information is used for indicating a data replication mode.

In a second aspect, an embodiment of the present invention provides a terminal device, including: a processing unit configured to determine first data copy information based on the first information; the first information is information related to resources and/or services, and the first data replication information is used for indicating a data replication mode.

In a third aspect, an embodiment of the present invention provides a terminal device, including a processor and a memory for storing a computer program capable of running on the processor, where the processor is configured to execute steps of a data replication method executed by the terminal device when the computer program is run.

In a fourth aspect, an embodiment of the present invention provides a storage medium storing an executable program, where the executable program, when executed by a processor, implements a data replication method executed by the terminal device.

According to the data replication and transmission method provided by the embodiment of the invention, the terminal equipment determines the first data replication information for indicating the data replication and transmission mode according to the first information, rather than determining the data replication mode according to the indication of the network equipment. The terminal equipment can more accurately determine the channel quality in the first information, so that the effectiveness of the data copying mode determined by the terminal equipment according to the first information is improved. Compared with the method for determining the data replication mode according to the indication of the network equipment, the terminal equipment autonomously determines the data replication mode, so that the flexibility of data replication is improved, and the performance of data replication is further improved.

Drawings

FIG. 1 is a schematic diagram of an architecture for data replication transmission;

fig. 2 is a schematic diagram of a communication system according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an alternative processing flow of a data replication method applied to a terminal device according to an embodiment of the present invention;

fig. 4 is a schematic diagram of another alternative processing flow of the data replication method applied to a terminal device according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of another alternative process flow of a data replication method according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a composition structure of a terminal device according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a hardware composition structure of an electronic device according to an embodiment of the present invention.

Detailed Description

So that the manner in which the features and techniques of the embodiments of the present invention can be understood in more detail, a more particular description of the invention, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the present invention.

Before describing embodiments of the present invention in detail, a brief description of data replication transmission will be first provided.

The subject of research was expanded at Release16, expanding business for factory automation (factory automation), transportation (transport industry) and power distribution (electrical power distribution) to the 5G IIoT subject; thus, the concept of a time sensitive network (Time Sensitive Network, TSN) was introduced. Thus, the issue of 5G IIoT will be for TSN related enhancements, intra-user priority and Data replication (Data replication) transmission and multi-connectivity. An architecture diagram of data replication and transmission is shown in fig. 1; the dual-connection (Dual Connectivity, DC) data replication and transmission manner is shown in (Data Resource Bearer, DRB) ID2 between the terminal device and the base station in fig. 1, and a split bearer (split bearer) architecture is adopted. A packet data convergence protocol (Packet Data Convergence Protocol, PDCP) entity associates two different radio link control (Radio Link Control, RLC) entities; one entity corresponds to one primary cell group (Primary Cell Group, MCG) and one entity corresponds to one secondary cell group (Secondary Cell Group, SCG). For uplink transmission data and downlink transmission data, the PDCP entity copies PDCP protocol data units (Protocol Data Unit, PDU) into two identical units, and the two PDCP entities reach corresponding MAC entities and RLC entities of terminal equipment or base station through RLC entities of different cell groups, different media access control (Media Access Control, MAC) entities and air interfaces; finally converging to the PDCP layer; when the PDCP layer detects that the data received by the two PDCP entities are the same data obtained after copying, if it is determined that the data is the same data obtained after copying by the two PDCP PDUs having the same sequence Number (Serial Number), one of the two PDCP entities is discarded, and the other PDCP entity delivers the other PDCP entity to a higher layer.

Carrier aggregation (Carrier Aggregation, CA) data copy transmission mode as shown in DRB ID1 or DRB ID3 in fig. 1, the PDCP entity associates two different RLC entities, both RLC entities being associated to the same MAC entity. For uplink transmission data and downlink transmission data, the PDCP entity copies PDCP PDUs into two identical parts, and the two PDCP entities pass through different RLC entities of a cell group, the same MAC entity and an air interface to reach corresponding MAC entities and RLC entities of terminal equipment or a base station; finally converging to the PDCP layer; when the PDCP layer detects that the data received by the two PDCP entities are the same data obtained after copying, if it is determined that the data is the same data obtained after copying by the two PDCP PDUs having the same sequence Number (Serial Number), one of the two PDCP entities is discarded, and the other PDCP entity delivers the other PDCP entity to a higher layer.

In the related art, during data duplication transmission, the uplink PDCP data duplication function is configured based on the DRB, that is, the uplink PDCP data duplication transmission configures data duplication transmission with the DRB as granularity, so as to control activation or deactivation of the data duplication transmission. In a specific implementation, the corresponding information is added in the PDCP-config IE in the radio resource control (Radio Resource Control, RRC) reconfiguration message to configure a bearer-based data replication scheme. Activating or deactivating based on the MAC CE indication, i.e., indicating that PDCP duplicate data transmission is employed or PDCP duplicate data transmission is not employed; if the MAC CE for activating or deactivating PCDP replication data transmission comprises an 8-bit map, the bit positions in the bit map respectively correspond to different DRBs, and the data replication transmission of the corresponding DRBs is indicated to be activated or deactivated by different values in the bit positions; if the bit value is 0, the data copy transmission is indicated to be deactivated; when the bit value is 1, the activation of data copy transmission is indicated.

However, the data replication in the related art can only be transmitted through two paths, namely, one data packet is replicated once, so that the application scenario of the data replication transmission is limited; and the terminal equipment can only determine whether to perform data copying transmission or not according to the instruction of the base station. The terminal device not only has poor flexibility in determining the data copy transmission mode through the base station indication, but also can cause unsuitable data copy transmission mode of the terminal device due to unclear downlink channel quality of the base station.

In order to solve the above-mentioned problems, the present invention provides a data replication method, and the data replication method of the embodiments of the present application may be applied to various communication systems, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) systems, general packet radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) systems, LTE frequency division duplex (Frequency Division Duplex, FDD) systems, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, wiMAX) communication systems, or 5G systems, and the like.

Exemplary, a communication system 100 to which embodiments of the present application apply is shown in fig. 2. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area. Alternatively, 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, an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

The communication system 100 further comprises at least one terminal device 120 located within the coverage area of the network device 110. "terminal device" as used herein includes, but is not limited to, a connection via a wireline, such as via a public-switched telephone network (Public Switched Telephone Networks, PSTN), a digital subscriber line (Digital Subscriber Line, DSL), a digital cable, a direct cable connection; and/or another data connection/network; and/or via a wireless interface, e.g., for a cellular network, a wireless local area network (Wireless Local Area Network, WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and/or means of the other terminal device arranged to receive/transmit communication signals; and/or internet of things (Internet of Things, ioT) devices. Terminal devices arranged to communicate over a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellites or cellular telephones; a personal communications system (Personal Communications System, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a global positioning system (Global Positioning System, GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal device may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolved PLMN, etc.

Alternatively, direct terminal (D2D) communication may be performed between the terminal devices 120.

Alternatively, the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

Fig. 2 illustrates one network device and two terminal devices by way of example, and alternatively, the communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage area of each network device, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that a device having a communication function in a network/system in an embodiment of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 2 as an example, the communication device may include the network device 110 and the terminal device 120 with communication functions, where the network device 110 and the terminal device 120 may be the specific devices described above, which are not described herein again; the communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

An optional processing flow of the data replication method applied to a terminal device provided in the embodiment of the present invention, as shown in fig. 3, includes the following steps:

in step S201, the terminal device determines first data copy information based on the first information.

In the embodiment of the present invention, the first information is information related to resources and/or services, and the first data replication information is used to indicate a data replication manner. It is also understood that the first data replication information is characterized as a data replication manner; or the first data copy information corresponds to the first data copy mode. For example, the terminal device determines a path identification or path used in the data copy transmission based on the first information. Optionally, the first information is configured by a network device. Optionally, the first information is indicated to the terminal device by the network device, or is indicated to the terminal device by the network device when a certain condition is met.

Or the terminal equipment determines the first data replication information based on the first indication information; at this time, the terminal device determines the first data copy information based on the first instruction information and the first information. It is also understood that the first data replication information is characterized as a data replication manner; or the first data copy information corresponds to the first data copy mode. In a specific implementation, the first indication information is used for indicating a mode of determining the first data replication mode by the terminal equipment or indicating a mode of determining the first data replication information by the terminal equipment. For example, the first indication information is used for indicating: first data copy information autonomously determined by the terminal device; or first data copy information determined by the terminal device according to the indication information from the network; or first data copying information determined by the terminal equipment according to the first indication information; or the terminal device negotiates with the network device the determined first data copy information. Or the first data copying information determined by the terminal equipment according to the second data copying information and/or the first strategy; or the first data copy information further determined by the terminal device based on the second data copy information. For example, the first indication information is used for indicating: the terminal equipment autonomously determines a data copying mode; or the terminal equipment determines a data copying mode according to the indication information from the network; or determining a data copying mode by the terminal equipment according to the first indication information; or the terminal equipment negotiates with the network equipment to determine the data copying mode; or the terminal equipment determines a data copying mode according to the second data copying information and/or the first strategy; or a data copy manner further determined by the terminal device based on the second data copy information. Specifically, for example, the terminal device determines, based on the first indication information, a path identifier or a path used in the data copy transmission may be determined by the terminal device itself or the terminal device participates in the determination.

The first information includes at least one of: channel quality information, traffic pattern (pattern), traffic quality of service (Quality of Service, qoS) information, size of data to be transmitted in the buffer, size of available time-frequency resources, priority of logical channels to be transmitted, priority of logical channel groups to be transmitted, identification of logical channels to be transmitted, identification of logical channel groups to be transmitted, identification of traffic carried/established by the terminal device, packet network protocol (Internet Protocol, IP) information, packet Ethernet (Ethernet) address, replication indication, specific traffic, specific carrier, specific packet, type of traffic to be transmitted, and available time-frequency resource attributes. Wherein the service QoS information includes at least one of: latency class, reliability class, latency, reliability, period, packet size, traffic priority, traffic type and quality of service flow identity (Quality of Service Flow Identifier, QFI). Optionally, the size of the data to be transmitted in the buffer is the size of the data to be transmitted in the PDCP buffer and/or the size of the data to be transmitted in the RLC buffer. The size of the available time-frequency resource is the size of the available time-frequency resource of the MAC layer. The available time-frequency resource attributes include at least one of: time-frequency resource priority, time-frequency resource identification, and time-frequency resource link control protocol (Link Control Protocol, LCP) constraint attributes; such as the available subcarrier spacing (subcarrier spacing, SCS), the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) duration (duration). The channel quality information may be determined by at least one of: reference signal measurement, hybrid Automatic Repeat reQuest (HARQ) information, and Automatic Repeat reQuest (ARQ) information. Wherein the reference signal measurement comprises: signal to interference and noise ratio (Signal to Interference plus Noise Ratio, SINR), reference signal received power (Reference Signal Receiving Power, RSRP), reference signal received quality (Reference Signal Receiving Quality, RSRQ), and received signal strength indication (Received Signal Strength Indication, RSSI).

The data replication mode comprises at least one of the following steps: determining whether to adopt a bearer corresponding to data replication; whether data copy transmission is adopted; the number of times the data is copied; when the data copy transmission is not adopted, the path identifier or path is used; the number of paths for data copying and transmission is adopted; path identification or path used in data copy transmission; granularity of data replication transmission; the data replicates the transferred object.

In particular implementations, it is determined whether a bearer corresponding to the data copy transmission is employed, i.e., whether the data copy transmission is activated or deactivated on that bearer. Whether to employ data copy transmission includes activating data copy transmission and deactivating data copy transmission, or using data copy transmission and not using data copy transmission. The path identity may include a logical channel identity and/or an RLC identity. The number of paths includes the number of logical channels and/or the number of RLC. The number of data replications includes: the number of data replications per path and/or the total number of data replications. For example, when the number of times of data copying is the total number of times of data copying and the total number of times of data copying is 4, the path used is 2, and 3 parts of data can be transmitted through one path, and 1 part of data can be transmitted through the other path. When the number of data duplication is the number of duplication per path and the number of duplication per path is 1, the number of paths to be transmitted by data duplication is 4, and the transmitted data is 4 copies. In the embodiment of the invention, the number of the paths for copying and transmitting the data can be more than 2, so that the application range of copying and transmitting the data is expanded.

The granularity of data replication transmission includes at least one of: based on packet granularity, based on QoS flow (flow) granularity, based on PDU session granularity, based on IP quintuple granularity, based on Ethernet address granularity, based on DRB granularity, and based on terminal device granularity. Each granularity may also be a list granularity, such as a data packet list granularity, a QoS flow list granularity, a PDU session list granularity, an IP five-tuple list granularity, an Ethernet address list granularity, a DRB list granularity, and a terminal device list granularity.

Alternatively, granularity based on IP quintuple can be granularity based on at least one element, such as the same processing of packets based on the same source address and transport layer protocol. Alternatively, for the same bearer, the terminal device may employ granularity of one or more than two data copy transmissions. More than two kinds of granularity of data copying transmission are adopted for the same bearer by the terminal equipment for illustration. For example, DRB1 carries packet 1 and a data packet with QFI value of 1, and packet 1 does not belong to QoS flow with QFI value of 1; qif-based data copy transmission is performed for a data packet having a QFI value of 1, and packet-based data copy transmission is performed for packet 1. Wherein, QFI value of 1 refers to QoS flow identified as 1. In the embodiment of the invention, the granularity of the data replication transmission is divided into finer granularity, for example, the data replication transmission with finer granularity can be indicated based on the granularity of the data packet. Taking the network equipment configuration or the data replication and transmission indication granularity as an example based on the QFI granularity, when the network equipment simultaneously configures or indicates the QFI or QFI list corresponding to the data replication and transmission, the terminal equipment performs replication and transmission on the data packet corresponding to the determined QFI or QFI list. If the QFI configured by the network equipment for the terminal equipment is 2, the terminal equipment copies and transmits the data packet with the QFI of 2. Taking the granularity of the network equipment configuration or the indication data copy transmission as an example based on the granularity of the data packet, the network equipment simultaneously configures or indicates the data copy transmission data packet IP information, or identification information, or specific priority information, and the terminal equipment performs copy transmission on the configured or indicated data packet IP or the data packet corresponding to the identification or the priority. If the IP of the data packet configured by the network equipment for the terminal equipment is A, the terminal equipment copies and transmits the data packet with the IP of A.

Wherein the object of the data copy transmission includes at least one of the following: packet identification, qoS flow identification, PDU session identification, IP quintuple identification, ethernet address identification, DRB identification, terminal device identification, SRB list identification packet identification, qoS flow list identification, PDU session list identification, IP quintuple list identification, ethernet address list identification, DRB list identification, terminal device list identification, data packets of a specific priority, qoS flows of a specific priority, PDU sessions of a specific priority, IP quintuple of a specific priority, ethernet addresses of a specific priority, DRBs of a specific priority, terminal devices of a specific priority, SRBs of a specific priority, packet lists of a specific priority, qoS flow lists of a specific priority, PDU session lists of a specific priority, IP quintuple lists of a specific priority, ethernet address lists of a specific priority, DRB lists of a specific priority, terminal devices of a specific priority, SRBs of a specific priority.

Optionally, the data replication method further includes: and the bearing adopts data packets with data replication. When the granularity of the data duplication transmission is based on the granularity of the data packet or based on the granularity of the QoS flow, the terminal device determines the data packet adopting the data duplication in the bearer based on at least one of the following: PDU session identity, QFI and duplicate transmission assistance information. The QFI may be obtained from a packet header corresponding to the SDAP by the PDCP entity, or may be indicated by an upper layer, or carried by a transmitted packet. When the granularity of the data duplication transmission is based on the granularity of the data packets or based on the granularity of the PDU session, the terminal device determines the data packets adopting the data duplication in the bearer based on at least one of the following: PDU session identity, QFI and duplicate transmission assistance information. The duplicate transmission assistance information includes at least one of: QFI, PDU session identification, IP information, ethernet address, priority information, duplication indication, specific service identification, bearer identification, specific packet identification, latency, reliability, latency level, and reliability level. Optionally, the IP information includes at least one of: IP address information, port identification, transport layer protocol identification/type and upper layer protocol identification/type. For example, the terminal device determines to perform data copy transmission on the data packet with QFI value equal to 1 according to the QoS requirement, the traffic pattern, the channel quality, and other information; then when the QFI value corresponding to the data packet is 1, the data packet is subjected to data copying transmission; and (5) data copying and transmission are not carried out on the data packets with QFI values not being 1.

The following describes how the terminal device determines the first data copy information for different contents included in the first information, respectively:

when the first information includes channel quality information, in an alternative embodiment, a comparison threshold may be preset, and when the channel quality is higher than the comparison threshold, the terminal device determines that data copy transmission is not adopted; or the data are arranged in ascending order or descending order according to the channel quality, and the terminal equipment selects paths corresponding to the last M or the first N carriers for data copying and transmission, wherein the value of M, N can be a predefined value, can be indicated to the terminal equipment by the network equipment, and can be determined by the terminal equipment; or when the measured value of the reference signal is greater than or equal to a first threshold value, the terminal equipment determines that data copy transmission is adopted; or the times of the reference signal measured value being greater than or equal to the first threshold value, and when the reference signal measured value is greater than or equal to the second threshold value, the terminal equipment determines that data copying transmission is adopted; or when the measured value of the reference signal is smaller than or equal to a first threshold value, the terminal equipment determines that data copy transmission is adopted; or the times that the measured value of the reference signal is smaller than or equal to the first threshold value are larger than or equal to the second threshold value, and the terminal equipment determines that data copying transmission is adopted; or when the HARQ retransmission times is smaller than or equal to a fourth threshold value, the terminal equipment determines that data copy transmission is adopted; or when the HARQ retransmission times is smaller than or equal to a fourth threshold value, the terminal equipment determines that data copy transmission is not adopted; or when the ARQ retransmission times are smaller than or equal to a fifth threshold value, the terminal equipment determines to adopt data copy transmission; or when the number of ARQ retransmissions is less than or equal to a fifth threshold, the terminal device determines not to employ the data copy transmission.

When the first information includes a service pattern, in an alternative embodiment, the terminal device determines whether to use data copy transmission according to a service period; for example, when the service period is short. When the packets arrive densely, duplicate data transmission is used. Or the terminal equipment determines whether to use data copy transmission according to the service state; for example, when a service starts or ends, the terminal device determines to use the data copy transmission, the service including at least one of: URLLC service, IIoT service and service with high priority; for example, when a logical channel is to transmit traffic, the terminal device determines to transmit using data replication, the logical channel including at least one of: bear URLLC business, TSN business, IIoT business and business with high priority; optionally, the service with high priority may be at least one of the following: the priority identification value is small, the priority identification is specific, the priority identification value is within a certain range, the time delay requirement is higher than a certain threshold, and the reliability requirement is higher than a first threshold; for example, when a particular service exists/is established/carried on or starts to be transmitted at the terminal device, the terminal device determines to use data copy transmission, the logical channel including at least one of: bear URLLC business, TSN business, IIoT business and business with high priority; optionally, the service with high priority may be at least one of the following: the priority identification is used for identifying the service with small value, the priority identification is used for identifying the specific service, the priority identification is used for identifying the service with the value within a certain range, the time delay requirement is higher than the service with a certain threshold, and the reliability requirement is higher than the service with a first threshold.

When the first information includes a logical channel group priority to be transmitted. In an alternative embodiment, the terminal device selects a logic channel to be transmitted with a high priority or a specific priority for data replication transmission.

When the first information includes the logical channel identifiers to be transmitted, in an alternative embodiment, when the number of the logical channel identifiers to be transmitted is greater than the number of paths for data duplication transmission, the terminal device randomly selects the logical channel identifiers to be transmitted, which are the same as the number of paths for data duplication transmission, from the plurality of logical channel identifiers to be transmitted.

When the first information includes the logical channel identifier to be transmitted, in an optional embodiment, the terminal device selects the logical channel or the corresponding bearer with the same logical channel identifier to be transmitted to perform data copy transmission, or the terminal device selects the logical channel or the corresponding bearer with the same logical channel identifier to be transmitted to not perform data copy transmission.

When the first information includes a logical channel group identifier to be transmitted, in an optional embodiment, the terminal device selects a part or all of the logical channels or corresponding bearers included in the logical channel group corresponding to the logical channel group identifier to not perform data copy transmission, or the terminal device selects a part or all of the logical channels or corresponding bearers included in the logical channel group corresponding to the logical channel group identifier to perform data copy transmission.

When the first information includes a service identifier to be transmitted, in an alternative embodiment, the terminal device determines that the service data packet with the service identifier performs data copy transmission, or the terminal device determines that the number of times of data copying of the service data packet with the service identifier is 5.

When the first information includes a service type to be transmitted, in an alternative embodiment, the terminal device determines that the data packet with the service type performs data copy transmission, or the terminal device determines that the granularity of data copy transmission of the data packet with the service type is based on the granularity of PDU session.

When the first information includes the service identifier carried/established by the terminal equipment, the terminal equipment determines that data copy transmission is not adopted. Or when the first information includes a service identifier carried/established by the terminal device, and the service corresponding to the service identifier does not meet the first condition of using data copy transmission, the terminal device determines that the data copy transmission is not performed on the service/the carrier carrying the service, and the like.

When the first information comprises a service identifier carried/established by the terminal equipment, and the service identifier corresponds to a specific service, the terminal equipment determines that the carrying/PDU session/QoS flow carrying the specific service adopts data duplication transmission.

When the first information includes a traffic QoS, in an alternative embodiment, the terminal device determines whether to use data copy transmission according to a latency level, a reliability level, QFI, etc. For example, the terminal device determines that the service with high reliability requirement and/or short delay uses data replication transmission; or the terminal equipment determines the bearer of the specific QoS flow/PDU session, or uses the data replication transmission of the specific QoS flow and the specific PDU session; or the terminal equipment determines the number of times of data copying and transmitting and/or the number of paths adopting the data copying and transmitting according to the QFI.

When the first information includes IP information, in an alternative embodiment, the terminal device uses data replication transmission for a packet of a specific IP address, and uses data replication transmission for the packet, or QoS flow of a bearer packet, or PDU session of the bearer packet, or bearer of the bearer packet.

When the first information comprises the data size to be transmitted in the RLC and/or PDCP buffer memory and the data size to be transmitted is larger than or equal to a seventh threshold value, the terminal equipment determines that data copy transmission is not adopted; or when the URLLC or IIoT traffic to be transmitted is smaller than an eighth threshold value, the terminal equipment determines that data copy transmission is not adopted; or when the traffic volume of URLLC or IIoT to be transmitted is larger than a ninth threshold value, the terminal equipment determines to adopt data replication transmission.

And when the first information comprises the size of the available time-frequency resource of the MAC layer and the size of the available time-frequency resource of the MAC layer is larger than or equal to a tenth threshold value, the terminal equipment determines to adopt data copy transmission.

And when the first information comprises the priority of the available time-frequency resources of the MAC layer and the size of the available time-frequency resources of the MAC layer is larger than or equal to a tenth threshold value, the terminal equipment determines to adopt data replication transmission.

In some embodiments, the terminal device can determine, according to the first information, a data replication manner required for performing data replication and transmission, that is, the terminal device can independently determine, according to the first information, how to perform data replication and transmission, without combining a data replication manner sent by the network device or a pre-configured data replication manner.

In other embodiments, the terminal device cannot independently determine a data replication manner required for performing data replication transmission according to the first information; or according to factors such as protocol convention, configuration information and the like, the terminal equipment combines the first data copying information determined by the terminal equipment and the second data copying information sent by the network equipment to determine a data copying mode required by data copying transmission. In this scenario, as shown in fig. 4, another alternative processing flow of the data replication method applied to the terminal device, the method includes, in addition to step S201:

In step S202, the terminal device receives the second data copy information sent by the network device.

Here, the second data replication information is used to indicate a data replication manner, and the second data replication information is sent to the terminal device by the network device through a dedicated signaling, that is, the second data replication information is carried in the dedicated signaling. Optionally, the dedicated signaling includes: RRC message, MAC CE, and DCI signaling. In a specific implementation, the second data replication information is determined by the network device according to the first information; or the second data copying information is determined according to the first data copying information sent to the network equipment by the terminal equipment; or the second data copying information is determined according to the first data copying information and the first information which are sent to the network equipment by the terminal equipment; the first information may be acquired by the network device itself, or may be sent by the terminal device to the network device.

In the embodiment of the present invention, the data replication manner indicated by the first data replication information may be completely the same as, partially the same as, or completely different from the data replication manner indicated by the second data replication information. For example, the first data copy information includes: whether to adopt data copy transmission or not and the bearing of the data copy transmission; the second data copy information includes: the path identifier used during the data copying transmission, the granularity of the data copying transmission and the number of times of the data copying are not adopted; at this time, the data copy manner indicated by the first data copy information is completely different from the data copy manner indicated by the second data copy information.

In some embodiments, when the first data replication information determined by the terminal device according to the first information is completely different from the data replication manner included in the second data replication information, the terminal device determines first information in the first data replication data based on the first data replication information, determines second information in the first data replication data based on the second data replication information, and the first data replication data includes the first information and the second information; or the terminal equipment determines first information in the first data replication mode based on the first data replication information, and determines second information in the first data replication mode based on the second data replication information, wherein the first data replication mode comprises the first information and the second information. For example, the terminal device determines that the first data replication information includes a data replication manner that is at least one of the following: whether to adopt data duplication transmission, determining whether to adopt the corresponding bearing of the data duplication, the number of times of the data duplication, and the path identification used when the data duplication transmission is not adopted; the terminal equipment determines that the data replication mode included in the second data replication information is at least one of the following: the number of paths that employ data replication transmissions, the path or path identification used in the data replication transmissions, the granularity of the data replication transmissions, and the objects of the data replication transmissions. The data replication mode finally determined by the terminal device includes a data replication mode of at least one corresponding data replication information in the first data replication information: whether to adopt data duplication transmission, determining whether to adopt the corresponding bearing of the data duplication, the number of times of the data duplication, and the path or path identifier used when the data duplication transmission is not adopted; and a data copy manner of a corresponding at least one of the second data copy information: the number of paths that employ data replication transmissions, the path or path identification used in the data replication transmissions, the granularity of the data replication transmissions, and the objects of the data replication transmissions.

In some embodiments, the first data replication information and the second data replication information determined by the terminal device according to the first information include a part or all of the same data replication manner, and when the content indicated by the first data replication information is different from the content indicated by the second data replication information for the same data replication manner, the terminal device adopts the content indicated by the corresponding first data replication manner in the second data replication information; or the terminal equipment adopts the content indicated by the corresponding first data copying mode in the first copying information; or the terminal equipment determines the content indicated by the first data replication mode based on the first replication information and the second replication information; or the terminal equipment determines the content indicated by the first data replication mode based on the second replication information and/or a first strategy, wherein the first strategy is configured or preset by network equipment; or the terminal equipment determines or further determines the content of the first data copying mode based on the second copying information. For example, when the terminal device determines that the first data copy information and the second data copy information, which are determined based on the first information, each include the number of data copies, the first data copy information indicates the number of data copies to be 4, and the second data copy information indicates the number of data copies to be 8, the terminal device may employ the number of data copies to be 4 or the number of data copies to be 8. In addition, when the terminal equipment adopts the content indicated in the second data replication information, so that the terminal equipment cannot realize data replication transmission based on the first data replication information, the terminal equipment can adaptively modify the data replication mode indicated in the first data replication information. For another example, when the number of times of data replication adopted by the terminal device according to the second data replication information is 8 and the paths 1,2,3, and 4 are adopted for transmission, if the determined path of data replication adopted by the terminal device in the first data replication information is different from the determined path of data replication adopted by the terminal device, the terminal device needs to further update the path of data replication adopted by the terminal device to be 1,3 or 1,5, and the number of data replication transmitted on the path of data replication adopted by the terminal device is 8. For another example, when the number of times of data replication adopted by the terminal device according to the second data replication information is 8 and the transmission is performed by adopting the paths 1,2,3 and 4, if the number of times of data replication transmission adopted by the terminal device in the first data replication information determined by the terminal device is different, the terminal device needs to further update the number of times of data replication transmission adopted by the terminal device, but selects the paths 1,2,3 and 4 for transmission. Or the terminal equipment simultaneously updates the times of the data copying transmission and the paths of the data copying transmission.

Determining, by the terminal device, content indicated by the first data replication manner based on the first replication information and the second replication information for illustration; taking the data replication mode as an example of the path identifier used when the data replication transmission is adopted, if the terminal equipment determines that the path identifier used when the data replication transmission is adopted is 1 and 2 based on the first replication information, determines that the path identifier used when the data replication transmission is adopted is 3 based on the second replication information, and finally determines that the path identifier used when the data replication transmission is adopted is 1, 2 and 3. Or if the terminal equipment determines that the path identifiers used when the data replication transmission is adopted are 1 and 2 based on the first replication information, and determines that the path identifiers used when the data replication transmission is adopted are 1 and 3 based on the second replication information, the terminal equipment finally determines that the path identifier used when the data replication transmission is adopted is 1.

Determining, for the terminal device, content indicated by the first data replication manner based on the second replication information and a first policy for illustration; taking the data replication mode as an example of the number of paths adopting data replication transmission, if the number of paths adopting data replication transmission is determined to be 2 based on the second replication information, and the first strategy indicates that the number of paths adopting data replication transmission is smaller than 4, the terminal equipment finally determines the number of paths adopting data replication transmission to be 2. Taking the data replication mode as an example of the number of paths adopting data replication transmission, if the number of paths adopting data replication transmission is determined to be 4 based on the second replication information, and the first strategy indicates that the number of paths adopting data replication transmission is 2, the terminal equipment finally determines the number of paths adopting data replication transmission to be 2. Alternatively, the first policy may agree on the number of paths, RLC entities, carriers, etc. that support or select data copy transmission at most simultaneously. Optionally, the first policy may be preconfigured or indicated by the network.

Then, the terminal equipment determines the content indicated by the first data copying mode based on the second copying information and a first strategy for illustration; the first policy may be information or a policy of how to determine a data replication manner when the second replication information collides with the first replication information; alternatively, the first policy may be information or a policy of how to determine the data replication manner when the second replication information is received. For example, when the received network device indicates that the used or activated paths (leg) are leg1, leg2, and leg3, the UE selects leg for final data copy transmission based on the three legs indicated by the first policy and the network, e.g., leg1 and leg2 are selected from leg1, leg2, and leg3 as leg for final data copy transmission. For another example, when the network device indicates that the used or activated leg is leg1, leg2, and leg3 are received, the UE determines that the maximum leg number for transmitting the duplicate data is 2 based on the first policy and the three legs indicated by the network, and determines to select the leg ultimately used for data duplicate transmission, e.g., leg1 and leg2 are selected from leg1, leg2, and leg3 as the leg ultimately transmitting the duplicate data.

Then, the terminal equipment determines the content indicated by the first data copying mode based on the second copying information for illustration; taking the path of data copy transmission as an example in the data copy mode, the terminal device selects the leg finally used for data copy transmission from among the active legs used for data copy transmission indicated by the network device. Specifically, the network device indicates that the used or activated leg is leg1, leg2, and leg3, and the UE selects the leg that is ultimately used for data replication transmission based on the three legs indicated by the network, e.g., leg1 and leg2 are selected from leg1, leg2, and leg3 as legs that ultimately transmit replication data.

In other embodiments, when the first data replication information determined by the terminal device is completely different from the data replication manner included in the second data replication information, the terminal device updates the first data replication information based on the second replication information, or the terminal device determines part of the information of the data replication manner based on the second replication information, or the terminal device determines another part of the information of the data replication manner based on the second replication information. Optionally, in other embodiments, when the first data replication information determined by the terminal device according to the first information and the data replication manner included in the second data replication information are completely different, the terminal device updates the first data replication information based on the second replication information, or the terminal device determines part of the information of the data replication manner based on the second replication information, or the terminal device determines another part of the information of the data replication manner based on the second replication information. It can be understood that the terminal device stores the data replication mode indicated in the second replication information into the first replication information, so as to update the first replication information. And the terminal equipment performs data copying transmission based on the data copying mode indicated by the updated first copying information. For example, the terminal device determines to perform data replication transmission on DRB1, the second data replication information indicates that a path identifier of the data transmission is used as a logical channel identifier, and uses logical channels with identifier 1 and identifier 2 for transmission; the terminal device determines to transmit DRB1 using logical channels identified as 1 and 2. Or when the data copying modes included in the first data copying information and the second data copying information determined by the terminal equipment according to the first information are completely different, the terminal equipment determines the data copying mode according to the first data copying information and the second data copying information.

Based on the above description, when determining the data replication mode, the terminal device in the embodiment of the present invention may be determined by the terminal device itself, or may be determined according to the configuration of the network device or the indication of the network device, or may be determined by the terminal device and the network device in a negotiation manner.

The method for determining the data replication mode by the terminal device and the network device is illustrated: 1. the activation or deactivation of the data copy transmission is indicated by the network device and the path for the data copy transmission is selected or determined by the terminal device itself. 2. The activation or deactivation of the data copy transmission is selected or determined by the terminal device itself, and the path for the data copy transmission is indicated by the network device. 3. Activating or deactivating the data replication transmission is indicated by the network device, and the path along which the data replication transmission is employed may be determined by at least one of: the terminal equipment is determined according to the first strategy, the terminal equipment is determined based on the indication of the network equipment and the first strategy, the terminal equipment is further determined only according to the indication of the network equipment, and the terminal equipment and the network equipment negotiate to determine. 4. The activation or deactivation of the data copy transmission is determined by at least one of the following means by the terminal device and the network device: the terminal equipment is determined according to the first strategy, the terminal equipment is determined based on the indication of the network equipment and the first strategy, the terminal equipment is further determined only according to the indication of the network equipment, the terminal equipment and the network equipment are determined in a negotiation mode, and the path adopting data copying transmission is indicated by the network equipment. 5. The activation or deactivation of the data copy transmission is selected or determined by the terminal device itself, and the path for the data copy transmission is determined by at least one of the terminal device and the network device in the following manner: the terminal equipment is determined according to the first strategy, the terminal equipment is determined based on the indication of the network equipment and the first strategy, the terminal equipment is further determined only according to the indication of the network equipment, and the terminal equipment and the network equipment negotiate to determine. 6. The activation or deactivation of the data copy transmission is determined by at least one of the following means by the terminal device and the network device: the terminal equipment is determined according to the first strategy, the terminal equipment is determined based on the indication of the network equipment and the first strategy, the terminal equipment is further determined only by the indication of the network equipment, the terminal equipment and the network equipment are determined in a negotiation mode, and the path adopting data copying transmission is selected or determined by the terminal equipment. 7. Activating or deactivating data replication transmission and employing a path for the data replication transmission is determined by at least one of: the terminal equipment is determined according to the first strategy, the terminal equipment is determined based on the network indication and the first strategy, the terminal equipment only has the network indication for further determination, and the terminal equipment negotiates with the network equipment for determination.

It should be noted that, alternatively, the final data replication mode is determined by the first data replication information, or by the second data replication information, or by the first data replication information and the second data replication information.

Optionally, the first data replication information determines a partial data replication method, and/or the second data replication information determines a partial data replication method.

Alternatively, the number of the legs for data copy transmission configured is at most or at most 4, and the number of the legs for data copy transmission activated/simultaneously activated or used is at most or at most 2.

It should be noted that, alternatively, there is no need to configure a primary path (primary leg) in the duplicate data transmission configuration, because the leg that can be used when the duplicate data transmission is not used may not be the primary leg. Optionally, the indication is by the network device or the UE is autonomously determined.

Optionally, after the terminal device determines the first data copy information based on the first information or the terminal device based on the first information and the first indication information, the method further includes:

in step S203, the terminal device transmits at least one of the first information, the first data copy information, and the first data copy information determination instruction to the network device.

Optionally, the network device may further determine or update the second data copy information according to the above information sent by the terminal device. Optionally, the determining or updating the second data copy information includes at least one of the following.

It should be noted that, there is no execution sequence between the step S202 and the step S203, the step S203 may be executed first, and then the step S203 may be executed. Step S203 may be performed first, and then step S202 may be performed. When step S202 is executed first, there is no execution sequence between step S202 and step S201, and step S201 may be executed first, and then step S202 may be executed; step S202 may be performed first, and then step S201 may be performed.

Optionally, the method further comprises:

step S204, the terminal equipment updates the first data replication information.

In the implementation, the terminal device may update the first data copy information according to the second data copy information sent by the network device, or may redetermine the first data copy information according to the first information.

Here, the terminal device updates the first data copy information according to the second data copy information transmitted by the network device, including: the terminal equipment increases the data copying mode indicated by the first data copying information according to the second data copying information sent by the network equipment and modifies the data copying mode indicated by the first data copying information according to the second data copying information sent by the network equipment.

In implementation, as shown in fig. 5, before the terminal device performs step S201, the method further includes:

in step S200a, the network device determines and configures RLC entity identities/logical channel identities to be carried when data copy transmission is employed.

In particular implementations, the terminal device determines which of all bearers are data-duplication-transmitted on and only RLC entity identities/logical channel identities that can be used for the bearer configuration that is data-duplication-transmitted. Or RLC entity identities/logical channel identities that the network device can use for all bearer configurations. Optionally, the RLC entity identification and the logical channel identification are: all identities corresponding to the bearer or to the PDCP entity.

In step S200b, the network device sends the configured RLC entity identification/logical channel identification to the terminal device, and indicates an initial mode of data copy transmission.

In a specific implementation, the network device passes dedicated signaling. Such as RRC reconfiguration message, MAC CE, etc., sends the configured RLC entity identification/logical channel identification to the terminal device and the initial mode of data copy transmission.

Further, the network device sends the initial mode of data copy transmission to the terminal device through dedicated signaling, such as RRC reconfiguration message, MAC CE, etc., to be the RLC entity identifier/logical channel identifier used when activated, and/or the initial mode of data copy transmission is the RLC entity identifier/logical channel identifier used when deactivated.

In step S200c, the terminal device performs configuration association according to the received RLC entity identification/logical channel identification.

In specific implementation, the terminal equipment determines the RLC entity identification/logical channel identification related to the bearer according to the dedicated signaling sent by the network equipment, and completes configuration association corresponding to the RLC entity identification/logical channel identification. The terminal device performs data transmission based on an initial mode of data copy transmission transmitted by the dedicated message.

Note that the path in the embodiment of the present invention is also called leg.

The embodiment of the present invention further provides a terminal device, and a composition structure of the terminal device 300, as shown in fig. 6, includes:

a processing unit 301 configured to determine first data copy information based on the first information; the first information is information related to resources and/or services, and the first data replication information is used for indicating a data replication mode.

In some embodiments, the first information includes at least one of: channel quality information, traffic pattern, traffic QoS information, size of data to be transmitted in the buffer and size of available time-frequency resources, priority of logical channels to be transmitted, priority of logical channel groups to be transmitted, logical channel identification to be transmitted, identification of logical channel groups to be transmitted, identification of traffic carried/established by the terminal device, IP information of data packets, ethernet address of data packets, copy indication, specific traffic, specific carrier, specific data packets, type of traffic to be transmitted and attribute of available time-frequency resources.

In some embodiments, the processing unit 301 is further configured to determine the first data replication information based on first indication information; the first indication information is used for indicating a mode of determining a first data copying mode by the terminal equipment or indicating a mode of determining the first data copying information by the terminal equipment.

In some embodiments, the traffic QoS information includes at least one of: delay class, reliability class, delay, reliability, period, packet size, traffic priority, traffic type, and QFI.

In some embodiments, the data replication means comprises at least one of: whether data copy transmission is adopted; determining whether to adopt a bearer corresponding to data replication; the number of times the data is copied; when the data copy transmission is not adopted, the path identifier or path is used; the number of paths for data copying and transmission is adopted; path identification or path used in data copy transmission; granularity of data replication transmission; the data replicates the transferred object.

In some embodiments, the granularity of the data replication transmission includes at least one of: packet-based granularity, qoS flow-based granularity, PDU session-based granularity, IP quintuple-based granularity, ethernet address-based granularity, DRB-based granularity, and terminal device-based granularity.

In some embodiments, the object of the data replication transmission includes at least one of: packet identification, qoS flow identification, PDU session identification, IP quintuple identification, ethernet address identification, DRB identification, terminal device identification, SRB list identification packet identification, qoS flow list identification, PDU session list identification, IP quintuple list identification, ethernet address list identification, DRB list identification, terminal device list identification, data packets of a specific priority, qoS flows of a specific priority, PDU sessions of a specific priority, IP quintuple of a specific priority, ethernet addresses of a specific priority, DRBs of a specific priority, terminal devices of a specific priority, SRBs of a specific priority, packet lists of a specific priority, qoS flow lists of a specific priority, PDU session lists of a specific priority, IP quintuple lists of a specific priority, ethernet address lists of a specific priority, DRB lists of a specific priority, terminal devices of a specific priority, SRBs of a specific priority.

In some embodiments, the path identification comprises: logical channel identity and/or RLC entity identity.

In some embodiments, the number of paths includes: the number of logical channels and/or the number of RLC.

In some embodiments, the data replication method further includes: and the bearing adopts data packets with data replication.

In some embodiments, the data packets in the bearer that employ data replication are determined based on at least one of: PDU session identity, QFI and duplicate transmission assistance information.

In some embodiments, the duplicate transmission assistance information includes at least one of: QFI, PDU session identification, IP information, ethernet address, priority information, duplication indication, specific service identification, bearer identification, specific packet identification, latency, reliability, latency level, and reliability level. Optionally, the IP information includes at least one of: IP address information, port identification, transport layer protocol identification/type and upper layer protocol identification/type.

In some embodiments, the terminal device 300 further comprises: the first transceiver unit 302 is configured to receive the second data replication information sent by the network device, where the second data replication information is used to indicate a data replication manner.

In some embodiments, when the second data replication information is different from the content indicated by the first data replication information for the same data replication manner, the processing unit 301 is configured to determine the content indicated by the first data replication manner by using any one of the following:

Adopting the content indicated by the corresponding first data copying mode in the second copying information; the first copying information is configured to adopt the content corresponding to the first data copying mode; determining content indicated by the first data replication mode based on the first replication information and the second replication information; determining the content of the first data replication mode based on the second replication information and/or the first strategy; and determining the content of the first data copying mode based on the second copying information.

In some embodiments, when the first data replication information and the second data replication information include completely different data replication manners, the processing unit 301 is configured to update the first data replication information based on the second replication information.

In some embodiments, when the first data replication information and the second data replication information include data replication methods that are completely different,

the processing unit 301 is configured to determine first information in a first data replication manner based on the first data replication information, and determine second information in the first data replication manner based on the second data replication information, where the first data replication manner includes the first information and the second information.

In some embodiments, when the second data copy information is the same as the first data copy information indicates for the same data copy manner,

the processing unit 301 is configured to use content corresponding to the first data replication mode in the second data replication information;

or adopting the content corresponding to the first data copying mode in the first data copying information.

In some embodiments, the terminal device further comprises: the second transceiver unit 303 is configured to send the first data copy information and/or the first information to the network device.

In some embodiments, the manner in which the processing unit 301 determines the first data replication information includes at least one of: first data copy information autonomously determined by the terminal device; first data copy information determined by the terminal device according to the indication information from the network; first data copy information determined by the terminal device according to the first indication information; the terminal device negotiates with the network device the determined first data copy information. The first data copying information is determined by the terminal equipment according to the second data copying information and/or the first strategy; the first data copy information determined by the terminal device based on the second data copy information.

The embodiment of the invention also provides the terminal equipment, which comprises a processor and a memory for storing a computer program capable of running on the processor, wherein the processor is used for executing the steps of the method for indicating the data copying mode executed by the terminal equipment when the computer program runs.

The embodiment of the invention also provides a network device, which comprises a processor and a memory for storing a computer program capable of running on the processor, wherein the processor is used for executing the steps of the method for indicating the data copying mode executed by the network device when the computer program runs.

Fig. 7 is a schematic diagram of a hardware composition structure of an electronic device (terminal device) according to an embodiment of the present invention, and the electronic device 1000 includes: at least one processor 1001, memory 1002, and at least one network interface 1004. The various components in the electronic device 1000 are coupled together by a bus system 1005. It is appreciated that the bus system 1005 is used to enable connected communications between these components. The bus system 1005 includes a power bus, a control bus, and a status signal bus in addition to the data bus. But for clarity of illustration the various buses are labeled as bus system 1005 in fig. 7.

It is to be appreciated that memory 1002 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Wherein the nonvolatile Memory may be ROM, programmable read-Only Memory (PROM, programmable Read-Only Memory), erasable programmable read-Only Memory (EPROM, erasable Programmable Read-Only Memory), electrically erasable programmable read-Only Memory (EEPROM, electrically Erasable Programmable Read-Only Memory), magnetic random access Memory (FRAM, ferromagnetic random access Memory), flash Memory (Flash Memory), magnetic surface Memory, optical disk, or compact disk read-Only Memory (CD-ROM, compact Disc Read-Only Memory); the magnetic surface memory may be a disk memory or a tape memory. The volatile memory may be random access memory (RAM, random Access Memory), which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (SRAM, static Random Access Memory), synchronous static random access memory (SSRAM, synchronous Static Random Access Memory), dynamic random access memory (DRAM, dynamic Random Access Memory), synchronous dynamic random access memory (SDRAM, synchronous Dynamic Random Access Memory), double data rate synchronous dynamic random access memory (ddr SDRAM, double Data Rate Synchronous Dynamic Random Access Memory), enhanced synchronous dynamic random access memory (ESDRAM, enhanced Synchronous Dynamic Random Access Memory), synchronous link dynamic random access memory (SLDRAM, syncLink Dynamic Random Access Memory), direct memory bus random access memory (DRRAM, direct Rambus Random Access Memory). The memory 1002 described in embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.

The memory 1002 in embodiments of the present invention is used to store various types of data to support the operation of the electronic device 1000. Examples of such data include: any computer program for operating on electronic device 1000, such as application 10022. A program for implementing the method according to the embodiment of the present invention may be included in the application 10022.

The method disclosed in the above embodiment of the present invention may be applied to the processor 1001 or implemented by the processor 1001. The processor 1001 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in the processor 1001 or by instructions in the form of software. The processor 1001 may be a general purpose processor, a digital signal processor (DSP, digital Signal Processor), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor 1001 may implement or execute the methods, steps and logic blocks disclosed in the embodiments of the present invention. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiment of the invention can be directly embodied in the hardware of the decoding processor or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium in the memory 1002 and the processor 1001 reads information in the memory 1002, in combination with its hardware, to perform the steps of the method as described above.

In an exemplary embodiment, the electronic device 1000 can be implemented by one or more application specific integrated circuits (ASIC, application Specific Integrated Circuit), DSP, programmable logic device (PLD, programmable Logic Device), complex programmable logic device (CPLD, complex Programmable Logic Device), FPGA, general purpose processor, controller, MCU, MPU, or other electronic components for performing the aforementioned methods.

Embodiments of the present application also provide a computer-readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to a terminal device in an embodiment of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the terminal device in each method of the embodiment of the present application, which is not described herein for brevity.

In the above embodiments of the present invention, "/" means "or" in the meaning; A/B represents A or B.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The above description is not intended to limit the scope of the invention, but is intended to cover any modifications, equivalents, and improvements within the spirit and principles of the invention.

Claims

1. A method of data replication, the method comprising:

The terminal equipment determines first data copying information based on the first information; the first information is information related to resources and/or services, and the first information comprises at least one of the following: channel quality information, traffic pattern, traffic quality of service QoS information, size of data to be transmitted and size of available time-frequency resources in the buffer, priority of logical channels to be transmitted, priority of logical channel groups to be transmitted, logical channel identification to be transmitted, logical channel group identification to be transmitted, service identification carried/established by the terminal device, packet network protocol IP information, packet Ethernet address, specific service, specific bearer, specific packet, type of service to be transmitted and available time-frequency resource attributes; the first data copying information is used for indicating a data copying mode;

the terminal equipment receives second data copying information sent by the network equipment, wherein the second data copying information is used for indicating the data copying mode; the second data replication information is determined by the network device according to the first information;

wherein the data replication mode indicated by the first data replication information is completely the same as, partially the same as, or completely different from, the data replication mode indicated by the second data replication information.

2. The method of claim 1, wherein the method further comprises:

the terminal equipment determines the first data replication information based on first indication information; the first indication information is used for indicating a mode of determining a first data copying mode by the terminal equipment or indicating a mode of determining the first data copying information by the terminal equipment.

3. The method of claim 1 or 2, wherein the first information further comprises:

copy indication.

4. A method according to claim 3, wherein the traffic QoS information comprises at least one of:

delay class, reliability class, delay, reliability, period, packet size, traffic priority, traffic type and quality of service flow identity QFI.

5. The method of claim 1 or 2, wherein the data replication means comprises at least one of:

whether data copy transmission is adopted;

determining whether to adopt a bearer corresponding to data replication;

the number of times the data is copied;

when the data copy transmission is not adopted, the path identifier or path is used;

the number of paths for data copying and transmission is adopted;

path identification or path used in data copy transmission;

Granularity of data replication transmission;

the data replicates the transferred object.

6. The method of claim 5, wherein the granularity of the data replication transmission comprises at least one of:

packet-based granularity, qoS flow-based granularity, protocol data unit PDU session-based granularity, IP quintuple-based granularity, ethernet address-based granularity, data bearer DRB-based granularity, and terminal device-based granularity.

7. The method of claim 5, wherein the object of the data replication transmission comprises at least one of:

packet identification, qoS flow identification, PDU session identification, IP quintuple identification, ethernet address identification, DRB identification, terminal device identification, SRB list identification packet identification, qoS flow list identification, PDU session list identification, IP quintuple list identification, ethernet address list identification, DRB list identification, terminal device list identification, data packets of a specific priority, qoS flows of a specific priority, PDU sessions of a specific priority, IP quintuple of a specific priority, ethernet addresses of a specific priority, DRBs of a specific priority, terminal devices of a specific priority, SRBs of a specific priority, packet lists of a specific priority, qoS flow lists of a specific priority, PDU session lists of a specific priority, IP quintuple lists of a specific priority, ethernet address lists of a specific priority, DRB lists of a specific priority, terminal devices of a specific priority, SRBs of a specific priority.

8. The method of claim 5, wherein the path identification comprises:

logical channel identity and/or radio link control RLC entity identity.

9. The method of claim 5, wherein the number of paths comprises:

the number of logical channels and/or the number of RLC.

10. The method of claim 1 or 2, wherein the data replication approach further comprises:

and the bearing adopts data packets with data replication.

11. The method of claim 10, wherein the packets in the bearer that employ data replication are determined based on at least one of:

PDU session identity, QFI and duplicate transmission assistance information.

12. The method of claim 11, wherein the duplicate transmission assistance information comprises at least one of:

QFI, PDU session identification, IP information, ethernet address, priority information, duplication indication, specific service identification, bearer identification, specific packet identification, latency, reliability, latency level, and reliability level.

13. The method of claim 1, wherein when the second data copy information is different from the first data copy information indicates for the first data copy manner, determining the first data copy manner indicates using any one of:

The terminal equipment adopts the content indicated by the corresponding first data copying mode in the second data copying information;

the terminal equipment adopts the content indicated by the corresponding first data copying mode in the first data copying information;

the terminal equipment determines the content of the first data copying mode based on the first data copying information and the second data copying information;

the terminal equipment determines the content of the first data copying mode based on the second data copying information and/or a first strategy;

and the terminal equipment determines the content of the first data copying mode based on the second data copying information.

14. The method of claim 1, wherein when the first data copy information and the second data copy information include data copy patterns that are completely different,

the terminal device updates the first data copy information based on the second data copy information.

15. The method of claim 1, wherein when the first data copy information and the second data copy information include data copy patterns that are completely different,

the terminal device determines first information in a first data replication mode based on the first data replication information, and determines second information in the first data replication mode based on the second data replication information, wherein the first data replication mode comprises the first information and the second information.

16. The method of claim 1, wherein, when the second data copy information is identical to the first data copy information indicated for the same data copy manner,

the terminal equipment adopts the content corresponding to the first data copying mode in the second data copying information;

or the terminal equipment adopts the content corresponding to the first data copying mode in the first data copying information.

17. The method of claim 1, wherein the method further comprises:

the terminal device sends at least one of the following to the network device:

the first data copy information, a first data copy information determination indication, and the first information.

18. The method of claim 2, wherein the manner in which the terminal device determines the first data copy information includes at least one of:

the first data copy information autonomously determined by the terminal device;

the first data copy information determined by the terminal device according to the indication information from the network;

the first data copying information determined by the terminal equipment according to the first indication information;

Negotiating, by the terminal device and the network device, the determined first data copy information;

the first data replication information is determined by the terminal equipment according to the second data replication information and/or a first strategy;

the first data copy information determined by the terminal device based on the second data copy information.

19. A terminal device, the terminal device comprising:

a processing unit configured to determine first data copy information based on the first information; the first information is information related to resources and/or services, and the first information comprises at least one of the following: channel quality information, traffic pattern, traffic quality of service QoS information, size of data to be transmitted and size of available time-frequency resources in the buffer, priority of logical channels to be transmitted, priority of logical channel groups to be transmitted, logical channel identification to be transmitted, logical channel group identification to be transmitted, service identification carried/established by the terminal device, packet network protocol IP information, packet Ethernet address, specific service, specific bearer, specific packet, type of service to be transmitted and available time-frequency resource attributes; the first data copying information is used for indicating a data copying mode;

The first receiving and transmitting unit is configured to receive second data replication information sent by the network equipment, wherein the second data replication information is used for indicating a data replication mode; the second data replication information is determined by the network device according to the first information;

20. The terminal device of claim 19, wherein the processing unit is further configured to determine the first data copy information based on first indication information; the first indication information is used for indicating a mode of determining a first data copying mode by the terminal equipment or indicating a mode of determining the first data copying information by the terminal equipment.

21. The terminal device of claim 19 or 20, wherein the first information further comprises:

copy indication.

22. The terminal device of claim 21, wherein the traffic QoS information includes at least one of:

23. The terminal device according to claim 19 or 20, wherein the data replication means comprises at least one of:

whether data copy transmission is adopted;

determining whether to adopt a bearer corresponding to data replication;

the number of times the data is copied;

the number of paths for data copying and transmission is adopted;

path identification or path used in data copy transmission;

granularity of data replication transmission;

the data replicates the transferred object.

24. The terminal device of claim 23, wherein the granularity of the data replication transmission comprises at least one of:

25. The terminal device of claim 23, wherein the object of the data copy transmission comprises at least one of:

26. The terminal device of claim 23, wherein the path identification comprises:

logical channel identity and/or radio link control RLC entity identity.

27. The terminal device of claim 23, wherein the number of paths comprises:

the number of logical channels and/or the number of RLC.

28. The terminal device according to claim 19 or 20, wherein the data replication means further comprises:

and the bearing adopts data packets with data replication.

29. The terminal device of claim 28, wherein the data packets in the bearer employing data replication are determined based on at least one of:

PDU session identity, QFI and duplicate transmission assistance information.

30. The terminal device of claim 29, wherein the duplicate transmission assistance information comprises at least one of:

QFI, protocol data unit PDU session identification, IP information, ethernet address, priority information, duplication indication, specific service identification, bearer identification, specific packet identification, latency, reliability, latency level, and reliability level.

31. The terminal device of claim 19, wherein when the second data copy information is different from the content indicated by the first data copy information for the first data copy manner, the processing unit is configured to determine the content indicated by the first data copy manner using any one of:

Adopting the content indicated by the corresponding first data copying mode in the second data copying information;

adopting the content indicated by the corresponding first data copying mode in the first data copying information;

determining the content of the first data copying mode based on the first data copying information and the second data copying information;

determining the content of the first data copying mode based on the second data copying information and/or the first strategy;

and determining the content of the first data copying mode based on the second data copying information.

32. The terminal device of claim 19, wherein when the first data copy information and the second data copy information include data copy manners that are completely different,

the processing unit is configured to update the first data copy information based on the second data copy information.

33. The terminal device of claim 19, wherein when the first data copy information and the second data copy information include data copy manners that are completely different,

the processing unit is configured to determine first information in a first data replication mode based on the first data replication information, determine second information in the first data replication mode based on the second data replication information, and the first data replication mode comprises the first information and the second information.

34. The terminal device of claim 19, wherein when the second data copy information is identical to the content indicated by the first data copy information for the same data copy manner,

the processing unit is configured to adopt the content corresponding to the first data copying mode in the second data copying information;

35. The terminal device of claim 19, wherein the terminal device further comprises:

a second transceiver unit configured to transmit to the network device at least one of:

36. The terminal device of claim 20, wherein the manner in which the processing unit determines the first data copy information includes at least one of:

the first data copy information autonomously determined by the terminal device;

37. A terminal device comprising a processor and a memory for storing a computer program capable of running on the processor, wherein,

the processor being adapted to perform the steps of the data replication method of any one of claims 1 to 18 when the computer program is run.

38. A computer readable storage medium storing an executable program which, when executed by a processor, implements the data replication method of any one of claims 1 to 18.