WO2020147054A1

WO2020147054A1 - Indication method for data replication and transmission, terminal device, and network device

Info

Publication number: WO2020147054A1
Application number: PCT/CN2019/072056
Authority: WO
Inventors: 石聪
Original assignee: Oppo广东移动通信有限公司
Priority date: 2019-01-16
Filing date: 2019-01-16
Publication date: 2020-07-23
Also published as: CN112655234A; CN112655234B

Abstract

Disclosed in the present invention are an indication method for data replication and transmission, a terminal device, a network device, a computer storage medium, a chip, a computer readable storage medium, a computer program product, and a computer program. The method comprises: sending first information to a terminal device, wherein the first information is used for representing binding information for data replication and transmission, and objects indicated in the first information use the same replication and transmission state; and/or, the first information is used for determining the binding information for data replication and transmission.

Description

Indication method for data copy transmission, terminal equipment and network equipment

Technical field

The present invention relates to the field of information processing technology, in particular to an instruction method for data replication and transmission, terminal equipment, network equipment, and computer storage media, chips, computer readable storage media, computer program products, and computer programs.

Background technique

According to business requirements, 5G is divided into 3 major application scenarios, enhanced mobile broadband (eMBB, Enhance Mobile Broadband), mMTC (massive Machine Type of Communication), uRLLC (ultra-reliable, low-latency communication, Ultra Reliable&Low Latency Communication). In the issue of Release15URLLC, high-reliability and low-latency services are considered and processed. In Rel-16, the research object is expanded, and finally, the IIoT project considers data duplication transmission and multi-connectivity (Data duplication and multi-connectivity).

Release 16 puts forward a higher demand for data replication and transmission characteristics. The system can implement a more flexible and effective data replication method, which brings the following challenges or problems to the existing technology: it needs to support the logic of the same bearer The number of channel/radio link control (RLC, Radio Link Control) entities (the number of legs supported by R16 is at least 1, including logical channel/RLC entity data = 1, 2, 3, 4, 5..) is greater than the existing The number of legs supported by data replication (the number of legs supported by R15 is 1,2).

Data replication and transmission can only support a maximum of two logical channels/RLC entities, and this does not match the requirement of more than two logical channels/RLC entities in R16. Therefore, corresponding solutions need to be considered.

Summary of the invention

To solve the above technical problems, embodiments of the present invention provide an instruction method for data copy transmission, terminal equipment, network equipment, and computer storage media, chips, computer readable storage media, computer program products, and computer programs.

In the first aspect, a method for indicating data replication transmission is provided, which is applied to a network device, and the method includes:

Send first information to the terminal device; wherein the first information is used to characterize binding information for data replication transmission, and the objects indicated in the first information use the same replication transmission status; and/or, the first information One piece of information is used to determine binding information for data replication and transmission.

In a second aspect, a method for instructing data replication and transmission is provided, which is applied to a terminal device, and the method includes:

Receiving first information; wherein the first information is used to characterize binding information for data replication transmission, and the objects indicated in the first information use the same replication transmission state; and/or, the first information is used To determine the binding information for data replication and transmission.

In the third aspect, a network device is provided, including:

The first communication unit sends first information to the terminal device; wherein the first information is used to characterize binding information for data replication transmission, and the objects indicated in the first information use the same replication transmission status; and/ Or, the first information is used to determine binding information for data replication transmission.

In a fourth aspect, a terminal device is provided, including:

The second communication unit receives first information; wherein the first information is used to characterize binding information for data replication transmission, and the objects indicated in the first information use the same replication transmission status; and/or, The first information is used to determine binding information for data replication transmission.

In a fifth aspect, a network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned first aspect or each implementation manner thereof.

In a sixth aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect or its implementations.

In a seventh aspect, a chip is provided, which is used to implement any one of the foregoing first aspect and second aspect or the method in each implementation manner thereof.

Specifically, the chip includes: a processor for calling and running a computer program from the memory, so that the device installed with the chip executes any one of the above-mentioned first aspect, second aspect, or each of its implementations method.

According to an eighth aspect, a computer-readable storage medium is provided for storing a computer program that causes a computer to execute the method in any one of the above-mentioned first and second aspects or various implementations thereof.

In a ninth aspect, a computer program product is provided, which includes computer program instructions, which cause the computer to execute the method in any one of the above-mentioned first and second aspects or various implementations thereof.

According to a tenth aspect, there is provided a computer program which, when run on a computer, causes the computer to execute the method in any one of the above-mentioned first and second aspects or various implementations thereof.

By adopting the above solution, the indicated object can be determined through the first information, the indicated object has the same status of using copy transmission or not using copy transmission, and the first information can indicate the binding relationship between logical channels, The binding relationship between DRB and/or SRB and the binding relationship between carriers and logical channels or carriers; thereby providing a multi-dimensional data replication transmission control method that reduces indication overhead, thereby reducing air interface signaling Overhead, reduce the processing complexity of terminal equipment and base stations, and increase the flexible control mode of data replication and transmission.

BRIEF DESCRIPTION

Figure 1-1 is a schematic diagram 1 of a communication system architecture provided by an embodiment of the present application;

Figure 1-2 is a schematic diagram of an architecture for replication transmission;

Figure 1-3 is a schematic diagram of the MAC CE format;

FIG. 2 is a schematic flow chart 1 of a method for indicating data copy transmission provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of the second flow of the method for indicating data copy transmission provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of another structure of replication transmission provided by an embodiment of the present application;

Fig. 5 is a schematic diagram 1 of the information format provided by an embodiment of the present application;

Figure 6 is a second schematic diagram of an information format provided by an embodiment of the present application;

FIG. 7 is a third schematic diagram of an information format provided by an embodiment of this application;

FIG. 8 is a fourth schematic diagram of an information format provided by an embodiment of the present application;

Figure 9 is a fifth schematic diagram of an information format provided by an embodiment of the present application;

Figure 10 is a sixth schematic diagram of an information format provided by an embodiment of the present application;

FIG. 11 is a third flowchart of a method for indicating data copy transmission provided by an embodiment of the present application;

FIG. 12 is a fourth flowchart of a method for indicating data copy transmission provided by an embodiment of the present application;

FIG. 13 is a schematic diagram of the composition structure of a network device according to an embodiment of the present invention;

FIG. 14 is a schematic diagram of the structure of a terminal device provided by an embodiment of the present application;

15 is a schematic diagram of the structure of a communication device provided by an embodiment of the present invention;

FIG. 16 is a schematic block diagram of a chip provided by an embodiment of the present application;

FIG. 17 is a schematic diagram 2 of a communication system architecture provided by an embodiment of the present application.

detailed description

In order to understand the features and technical contents of the embodiments of the present invention in more detail, the following describes the implementation of the embodiments of the present invention in detail with reference to the accompanying drawings. The accompanying drawings are for reference only and are not intended to limit the embodiments of the present invention.

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

The technical solutions of the embodiments of this application can be applied to various communication systems, for example: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, and Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc.

Exemplarily, the communication system 100 applied in the embodiment of the present application may be as shown in FIG. 1-1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal). The network device 110 can provide communication coverage for a specific geographic area, and can communicate with terminal devices located within the coverage area. Optionally, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or a wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, an in-vehicle device, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks or network devices in future public land mobile networks (Public Land Mobile Network, PLMN), etc.

The communication system 100 also includes at least one terminal device 120 within the coverage of the network device 110. As used herein, "terminal equipment" includes, but is not limited to, connections via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Lines (DSL), digital cables, and direct cable connections ; And/or another data connection/network; and/or via wireless interfaces, such as for cellular networks, wireless local area networks (Wireless Local Area Network, WLAN), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and/or another terminal device configured to receive/transmit communication signals; and/or Internet of Things (IoT) equipment. A terminal device set to communicate through a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communication Systems (PCS) terminals that can combine cellular radiotelephones with data processing, facsimile, and data communication capabilities; may include radiotelephones, pagers, Internet/internal PDA with networked access, web browser, notepad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palm-type receivers or others including radiotelephone transceivers Electronic device. Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device. Access terminals can be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital processing (Personal Digital Assistant (PDA), wireless communication Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in PLMNs that will evolve in the future, etc.

Optionally, direct terminal connection (Device to Device, D2D) communication may be performed between the terminal devices 120.

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

Figure 1-1 exemplarily shows one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment of the application does not limit this.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, etc. This embodiment of the present application does not limit this.

It should be understood that the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices. Taking the communication system 100 shown in FIG. 1-1 as an example, the communication device may include a network device 110 with communication functions and a terminal device 120. The network device 110 and the terminal device 120 may be the specific devices described above. Further details; the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.

In addition, in the prior art, data replication is performed at the PDCP layer, and the same PDCP PDU is mapped to different RLC Entity. The MAC needs to transmit replicated data of different RLC entities (RLC entities) to different carriers. At this time, the number of corresponding RLC entities can be at least one: 1, 2, 3, 4, etc.

For the CA scenario, the solution that supports data duplication utilizes the data duplication function of PDCP, so that the duplicate PDCP PDU is transmitted to two RLC entities (two different logical channels), and finally the duplicate PDCP PDU can be guaranteed It is transmitted on aggregated carriers of different physical layers to achieve frequency diversity gain to improve data transmission reliability. DRB 1 and DRB 3 in Figure 1-2. :

For the DC scenario, the solution supporting data duplication utilizes the data duplication function of PDCP, so that the copied PDCP PDU is transmitted to two RLC entities respectively, and the two RLC entities respectively correspond to different MAC entities. DRB2 as shown in Figure 1-2.

For data replication and transmission, the uplink PDCP data replication function can be configured based on DRB, that is, with DRB granularity, the replication data transmission is configured to control whether the replication data transmission is activated or deactivated.

In the existing protocol (NR R15), for the data radio bearer configured with the copy data transmission function, the network can dynamically activate or deactivate the data copy transmission function of a certain data radio bearer through the MAC CE . For example, in Figure 1-3, the MAC CE contains an 8-bit Bitmap. The bits in the bitmap correspond to different DRBs. The different values in the bits indicate the activation or deactivation of the corresponding DRB data copy data. The existing technology can only support a maximum of 2 legs, which does not match the requirement of R16 for more than two legs. Therefore, it is necessary to consider corresponding solutions to support the new problems introduced by R16 due to the increase in the number of legs, such as how to configure more than two legs, and how to indicate which one is configured when more than two legs are configured The leg transmits the copied data (activation), and which leg configured does not transmit the copied data (deactivation) is a problem that needs to be solved.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is just an association relationship that describes an associated object, which means that there can be three kinds of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, exist alone B these three cases. In addition, the character “/” in this article generally indicates that the related objects before and after it are in an “or” relationship.

Example one

The embodiment of the present invention provides an instruction method for data replication transmission, which is applied to a network device, as shown in FIG. 2, including:

Step 201: Send first information to the terminal device; where the first information is used to characterize the binding information for data replication transmission, and the objects indicated in the first information use the same replication transmission status; and/or, The first information is used to determine binding information for data replication transmission;

Wherein, the first information includes at least one of the following:

The binding relationship between logical channels;

The binding relationship between DRB and/or SRB;

The binding relationship between the carrier and the carried logical channel;

The binding relationship between carriers.

Wherein, the object is one of a bearer, an RLC (Radio Link Control, Radio Link Control Protocol) entity, a logical channel, and a carrier.

The use of the same copy transmission state for the above objects means that the objects indicated by the first information all use the copy transmission state, or they do not use the copy transmission state.

In this embodiment, the use of the copy transmission mode may specifically be that the logical channel is in the active state, that is, the copy transmission is in the active state; if the copy transmission mode is not used, the logical channel may be in the deactivated state, that is, the copy transmission is not performed. status.

The following describes the processing methods of the aforementioned binding relationships:

The binding relationship between the logical channels includes one of the following:

Binding relationship information of at least two logical channels;

First type mode information of at least two logical channels;

The second type mode information of at least two logical channels.

The logical channel is a configured logical channel that can be used to transmit a packet data convergence protocol (PDCP, Packet Data Convergence Protocol)) protocol data unit (PDU, Protocol Data Unit) and/or its replicated data.

It should also be pointed out that the logical channel may be any logical channel of the terminal device. The logical channels paired with the logical channels may belong to different cell groups (CG, Cell Group), or may belong to the same CG. And/or, the paired logical channels may correspond to different bearers or the same bearer.

Further, when the paired logical channels correspond to the same bearer, the logical channel is leg.

Among them, in the description of legs, when data is copied and transmitted, a data packet of a PDCP entity can be transmitted by multiple RLC entities or logical channels, and one of the corresponding RLC entities or logical channels can become a leg. In the embodiment of the present application, it can be assumed that the number of legs is n, and n is an integer greater than or equal to 1.

Specifically, the at least two logical channels indicated by the binding relationship information of the at least two logical channels have the same replication transmission or non-replication transmission status; specifically, the bound logical channel and the logical channel paired with it The data replication transmission activation/deactivation status is the same, that is, the replication data is transmitted or the replication data is not transmitted.

or,

The first-type mode information of the at least two logical channels includes at least one mode; wherein, the corresponding logical channels in the same mode have the same transmission status with or without copying, and the corresponding logical channels between different modes The status of the transmission with or without copying is the same or different. For example, at least one mode may have two modes, such as a first mode and a second mode, namely mode 1 and mode 2. Among them, the data replication transmission activation/deactivation status of the logical channels of the same mode is the same, that is, the replicated data is transmitted or the replicated data is not transmitted. The data replication transmission activation/deactivation states of the logical channels of different modes may be the same or different.

or

The second-type mode information of the at least two logical channels includes at least one full mode and a selection mode; wherein, the corresponding logical channels in the same full mode have the same and different transmission status with or without copying. The use copy transmission or non-use copy transmission states of the corresponding logical channels between all modes are the same or different; the use copy transmission or non-use copy transmission states of the logical channels corresponding to the selected mode are respectively indicated. Among them, the full mode is full mode, and the selection mode is select mode. The full mode represents that the logical channel is paired with other logical channels into a group, and the group of logical channels uses a common bit to indicate whether to transmit replicated data, and select mode represents the logical channel unpaired group, and the logical channel requires a separate bit to indicate whether to transmit replicated data .

It should be pointed out that the use or non-use replication transmission state of the logical channel between each full mode can be the same or different, for example, the use or non-use replication transmission state of the logical channel of the first full mode and the second full mode Different; the first full mode and the third full mode have the same logical channel with or without copying transmission status.

It should also be noted that the first information is used to determine the binding information for data replication and transmission, which means that the terminal device can determine the binding information between objects through the related information indicated in the first information. For example, when the first information indicates that logical channel 1 is a bound logical channel, or logical channel 1 is a full-mode channel,

logical channels

3 and 4 also indicate a full-mode logical channel; that is, the terminal device can Based on the first information for the

logical channels

1, 3, and 4, it is determined that the

logical channels

1, 3, and 4 have a binding relationship. Other granularities are handled in the same way. For example, for DRB or carrier, you can also set the binding identifier for it. When other SRB and/or DRB are also set with the corresponding binding identifier, data resource bearer (DRB, Data Resource Bearer) and Signal Resource Bearer (SRB, Signal Resource Bearer) and/or DRB have a binding relationship; they will not be repeated here.

Using the above method, in the case of flexible and effective support for data replication instructions, reduce the number of bits required in the instruction information, use the shortest/simple bit instructions as possible, and minimize the air interface information caused by the introduction of multiple bit instructions. Make the overhead, reduce the processing complexity of the terminal equipment and the base station.

The first approach,

For the specific process of this processing method, see Figure 3:

The network side can specifically determine whether to use the data replication transmission mode and the related configuration information of the data replication transmission mode for the base station. The first information is mandatory configuration or optional optional configuration.

The network side may be the base station, determine the data replication transmission mode used, and notify the terminal device of the configuration information corresponding to the data replication mode and the first information; the first information is used to indicate the binding relationship between the logical channels. Specifically, the bound logical channel has the same data replication transmission activation/deactivation status as the paired logical channel, that is, both transmit replicated data or do not transmit replicated data.

Further, this processing method includes sub-scheme 1:

The sending the first information to the terminal device includes:

Determining that there are at least two logical channels with the same status of using copy transmission or not using copy transmission; sending configuration messages corresponding to the at least two logical channels to the terminal device, where the configuration information is used to indicate the first information;

Wherein, the configuration information includes the binding information of the logical channel; when the binding information indicated in the configuration information is true, it indicates that the logical channel is at least with the same status of using copy transmission or not using copy transmission. One of two logical channels.

That is, the configuration message corresponding to the logical channel sent by the network side base station to the terminal device indicates the binding information. If the binding indication information is True, it represents logical channel binding. Further, the terminal device may set all logical channels whose binding indication information is True as a group. By indicating whether one of the logical channels transmits duplicate data (activation/deactivation), that is, indicates whether all logical channels of the group transmit duplicate data (activation/deactivation).

In this sub-scheme, the network side can use the media access control (MAC, Media Access Control) control element (CE, Control Element), radio resource control (RRC, Radio Resource Control) message, and downlink control information (DCI, DownLink Control Information). One of the methods instructs the terminal equipment to use replication transmission or non-use replication transmission status of the logical channel; wherein, one of the MAC CE, RRC message, and DCI carries at least one of the following information: logical channel identifier, and cell corresponding to the logical channel Group CG identification.

Another way of sending instructions may be: the configuration message further includes: the group identifier bound to the logical channel; the method further includes: indicating the logical channel to the terminal device through one of MAC CE, RRC message, and DCI Use copy transmission or not use copy transmission state; wherein, one of the MAC CE, RRC message, and DCI carries the group identifier bound to the logical channel, the logical channel identifier, and the cell group CG identifier corresponding to the logical channel is at least One.

In other words, the configuration message sent to the terminal device from the network side also indicates the bound group identifier. Then the message indicating the update, such as the MAC CE, carries at least one of the bound group identifier, logical channel identifier, and cell group CG identifier corresponding to the logical channel.

For example, referring to Figure 4, if the logical channel (LC) 1 of DRB1 is configured to bind with LC4 of DRB2 and LC5 of DRB3, then the logical channel (LC) 1 of DRB1 will be bound with LC4 of DRB2 and LC5 of DRB3. The information is Ture, boundFlag=1.

The new information element (IE) boundFlag, the format can be as follows: boundFlag-r16BOOLEAN OPTIONAL, --Need R. specific:

This processing method can also include sub-scheme 2:

The sending the first information to the terminal device includes:

Determine at least two logical channels with the same activation or deactivation status;

Send configuration information corresponding to the first logical channel of the at least two logical channels to the terminal device; the configuration information contains the identifier of the logical channel bound to the first logical channel, and/or The CG identifier to which the logical channel bound to the first logical channel belongs.

That is, the configuration message corresponding to the logical channel indicates the identifier of the logical channel bound to it, and/or the CG identifier to which the bound logical channel belongs. The bound logical channels are a group, indicating whether one of the logical channels transmits duplicate data (activation/deactivation), that is, indicates whether all logical channels of the group transmit duplicate data (activation/deactivation).

The method further includes: indicating to the terminal device the status of using replication transmission or not using replication transmission of the logical channel through one of MAC CE, RRC message, and DCI; wherein, one of the MAC CE, RRC message, and DCI carries the following At least one: the logical channel and the CG identity of the cell group to which the logical channel belongs.

For example, if the logical channel (LC) 1 of DRB1 is configured to bind with LC4 of DRB2 and LC5 of DRB3, then the logical channel (LC) 1 of DRB1 can be configured with boundLogicalChannels IE and CG-Idendity.

For example, a new IE, boundLogicalChannel, is used to configure the bound logical channel identifier corresponding to the logical channel and the cell group identifier to which the bound logical channel identifier belongs. Specifically, the IE is used to indicate the bound logical channel, which can include logical channel identification (LogicalChannelIdentity) and cell group identification (CG-identity), for example: "boundLogicalChannelList-r16SEQUENCE(SIZE(1..maxLC-ID-1)) )OF boundLogicalChannel OPTIONAL,--Need R boundLogicalChannel::=SEQUENCE{

LogicalChannelIdentityLogicalChannelIdentity,OPTIONAL,--Need R

CG-identity CellGroupId OPTIONAL,--Need R"

Used to identify the bound logical channel list, logical channel identification, and cell group identification.

details as follows:

The first information is carried by an RRC reconfiguration message. That is, the base station notifies all the data replication transmission configuration information and the first information through the RRC reconfiguration message.

Optionally, the base station adds an IE to the LogicalChannelConfig IE in the RRC reconfiguration IE for notifying the first information. The advantage of reusing RRC reconfiguration messages is to reuse existing messages and procedures as much as possible and reduce the complexity of terminal equipment. For the specific IE format, please refer to the foregoing description, which will not be described here.

For the subsequent processing of the foregoing two sub-schemes, referring to Figure 3, the terminal device receives the RRC message from the base station (ie, the network side), configures the RLC entity according to the first information in the RRC message, and confirms the pairing information and/or according to the first information Paired logical channel. The terminal device then transmits according to the initial copy data transmission mode. Among them, the initial copy data transmission method can be included in the configuration information sent from the network side. Of course, it can also be the default initial copy data transmission method of the terminal device. It can be activated or deactivated, that is, use the copy transmission method or not. Copy the transmission method. Further, in the initial transmission mode configuration, the RLC entity used for activation or deactivation can be configured.

When the base station determines that it is necessary to change the data replication mode, such as when the data replication transmission is activated/deactivated, the base station instructs the terminal device to change the status of the replication data transmission to activation or deactivation through dedicated information. Among them, the dedicated information can be MAC CE, RRC, or DCI signaling.

The terminal device receives a data copy mode change indication message from the base station. For example, when the terminal device is instructed to activate/deactivate the corresponding bearer data copy transmission through the MAC CE, the terminal device determines the activation or deactivation according to the corresponding bit information in the MAC CE Operation, subsequent data transmission is performed according to the updated data copy transmission activation/deactivation status.

The formats of MAC CE, RRC, and DCI can be shown in Figures 5 and 6, taking MAC CE as an example. A new LCID can be introduced in the MAC CE subheader to indicate replication data transmission activation/deactivation signaling New format. Among them, A/D: Represents whether the corresponding logical channel transmits copy data. LogicalchannelIdetity: Represents the indicated logical channel identifier. CG-ID: Represents the cell group identifier to which the indicated logical channel belongs.

Sub-program 3:

At least one mode is used to indicate the status of using copy transmission or not using copy transmission of the logical channel, that is, the state of activation or deactivation; this solution uses two modes as examples for illustration, namely the first mode and the second mode, specific:

Through one of MAC CE, RRC message, and DCI to indicate to the terminal device the status of using replication transmission or not using replication transmission of the logical channel corresponding to the first mode, and/or, the status of using replication transmission of the logical channel corresponding to the second mode or Do not use copy transfer status.

Specifically, the first information may be mode type information of a logical channel, including mode 1, mode 2. Among them, the data replication transmission activation/deactivation status of the logical channels of the same mode is the same, that is, the replicated data is transmitted or the replicated data is not transmitted.

Specifically, when the configuration is in different modes, the indication bits used are different.

For example: configure the logical channel (LC) 1 of DRB1 and LC4 of DRB2, the mode of LC5 of DRB3 is 1, and the mode of other logical channels is 2, you can configure the logical channel (LC) 1 of DRB1 with BoundMode, according to The IE determines which mode.

The RRC configuration, such as IE BoundMode, is used to configure the mode information of the logical channel bonding, and it can be "BoundMode-r16ENUMERATED{1,2,3,4}OPTIONAL,--Need R" to indicate the bonding mode. See the following for details:

In one of the MAC CE, RRC message, and DCI, different rows are used to indicate whether the logical channel corresponding to the first mode uses replication transmission or does not use replication transmission status, and/or is used to indicate the second mode corresponds to The status of the logical channel using copy transmission or not using copy transmission. It should be understood that the first row and the second row may or may not be adjacent. Of course, the first row and the second row may be from top to bottom, or from bottom to top.

For example, referring to Fig. 7, the first row represents whether the logical channel of mode 1 transmits copy data, and the second row represents whether the logical channel of mode 2 transmits copy data.

Sub-program 4:

Use one of MAC CE, RRC message, or DCI to indicate to the terminal device the status of using copy transmission or not using copy transmission of the logical channel corresponding to the full mode, and/or the use of copy transmission or not using the logical channel corresponding to the selected mode Copy the transmission status.

Specifically, the first information may be mode information of a logical channel, including full mode and select mode. Among them, full mode represents a logical channel paired with other logical channels to form a group, the group of logical channels uses a common bit to indicate whether to transmit replicated data, and select mode represents a logical channel unpaired group, which requires a separate bit to indicate whether to transmit replicated data.

If the logical channel is configured as full mode, it means that the paired logical channels have the same activation/deactivation status, or the paired logical channels are all activated, or the paired logical channels are all deactivated.

If the logical channel is configured as select mode, it means that there is no pairing, and a separate bit is needed to indicate whether to transmit copy data.

For example: According to the mode information, determine the RLC entity activation mode that can be finally supported. For example, configure 4 logical channels/RLC entities, and the modes of

channels

0, 1, 2 and 3 are full, select, full, and select respectively, so that all supported combinations of RLC activation are as follows (0 represents the corresponding RLC entity activation , 1 represents the deactivation of the corresponding RLC entity, the order is RLC entity 0, RLC entity 1, RLC entity 2, RLC entity 3): (0,0,0,0), (1,0,1,0), (1 ,1,1,0), (1,0,1,1), (1,1,1,1). For example, for these 5 combinations, you can use the select mode corresponding to the 3 bits in the row Value to indicate. Optionally, the leg combination mode or the combination mode of all RLC activations may be notified to the terminal equipment by the base station, or may be predefined.

In one of the MAC CE, RRC message, and DCI, at least one bit in the first row is used to indicate the status of using replication transmission or not using replication transmission of the logical channel corresponding to the full mode, and/or, through the second row The different bits in indicate the status of using copy transmission or not using copy transmission respectively corresponding to at least one logical channel corresponding to the selection mode. For example, referring to Figures 7 and 8, the first row in Figure 7 represents whether the logical channel of full mode transmits copy data, and the second row represents whether the logical channel of select mode transmits copy data; or, as shown in Figure 8, in the information Middle A/D: Represents whether the corresponding logical channel transmits replicated data; LogicalchannelIdetity: Represents the indicated logical channel identifier; CG-ID: Represents the Cell Group ID to which the indicated logical channel belongs; Index: Represents which of the corresponding indications can be used to transmit replicated data Logical channel combination.

The second processing method,

The DRB indicated in the binding relationship between the DRB and/or SRB has the same data replication transmission activation or data replication transmission deactivation state as the SRB and/or DRB;

Alternatively, the SRB indicated in the binding relationship between the DRB and/or SRB has the same data replication transmission activation or data replication transmission deactivation state as the SRB and/or DRB.

Specifically, the data replication transmission activation/deactivation status of the bound SRB and/or DRB and its paired DRB and/or SRB is the same, that is, the replicated data is transmitted or the replicated data is not transmitted.

Based on the above processing method, it can flexibly and effectively support data duplication instructions, reduce the bits required in the instruction information, use the shortest/simple bit instructions, and reduce the air interface information caused by the introduction of multiple bit instructions as much as possible Make the overhead, reduce the processing complexity of the terminal equipment and the base station.

Specific steps are as follows:

The network side, such as the base station, determines to use the data replication transmission mode, and informs the terminal equipment of the configuration information corresponding to the data replication mode, and the first information used to indicate that the first information is the binding between bearers (DRB and/or SRB) relationship. Specifically, the bound bearer is in the same data replication transmission activation/deactivation state as its paired bearer, that is, both transmit replicated data or do not transmit replicated data.

For example, referring to Fig. 4, configuring the binding of DRB1 and DRB2 means that if the use of DRB is instructed to replicate data transmission, DRB2 also uses the same replicated data transmission.

The RRC IE is as follows: for example, in the RadioBearerConfig IE in the RRC reconfiguration IE, a newly added IE, boundDRBs, is used to configure the identity of the bearer bound to this bearer. For example, ""boundSRBs-r16SEQUENCE(SIZE(1..maxDRB-1))OF SRB-Identity OPTIONAL,--Need R" and/or "boundDRBs-r16SEQUENCE(SIZE(1..maxDRB-1))OFDRB- Identity OPTIONAL, --Need R" are used to indicate the information of the bound DRB. Specifically, such as:

The base station notifies all the data replication transmission configuration information and the first information through the RRC reconfiguration message.

Optionally, the base station adds an IE to the LogicalChannelConfig IE in the RRC reconfiguration IE for notifying the first information. The advantage of reusing RRC reconfiguration messages is to reuse existing messages and procedures as much as possible and reduce the complexity of terminal equipment. For the specific IE format, please refer to the foregoing description and will not be repeated.

The terminal device receives the RRC message from the base station, configures the RLC entity, and confirms the pairing information and the paired bearer information according to the first information. The terminal device then transmits according to the initial copy data transmission mode.

The method also includes:

Instruct the terminal device to change the data copy transmission instruction through one of MAC CE, RRC message, and DCI;

One of the MAC CE, RRC message, and DCI carries an identification of DRB or SRB, or carries an identification of DRB or SRB, and an indication of whether the logical channel corresponding to DRB or SRB transmits replicated data.

The MAC CE can be in the following format:

Optionally, in the MAC CE subheader, a new LCID is introduced to indicate the new format of the replication data transmission activation/deactivation signaling. For example, see Figure 9, where A/D: represents whether the corresponding logical channel transmits duplicate data; DRB-identity: represents the indicated DRB identity.

The third processing method,

The binding relationship between the carrier and the bearer logical channel is used to determine whether the bearer logical channel transmits replicated data by indicating whether the carrier uses replication transmission or does not use replication transmission status.

That is, the first information is the binding information between the carrier and the carried logical channel. Specifically, a carrier-based activation/deactivation method can be used to indicate whether the logical channel corresponding to the bearer transmits duplicate data. It should be noted here that when the logical channel indicated by the carrier is used to transmit replicated data, the bearer corresponding to the logical channel may or may not be the same bearer.

Specific steps are as follows:

The base station determines to use the data replication transmission mode, and notifies the terminal device of the configuration information corresponding to the data replication mode, and the first information, which is used to indicate that the first information is the binding relationship between the carrier and the logical channel (LC). Specifically, the carrier and the logical channel have the same data replication transmission activation/deactivation status, that is, both transmit replicated data or do not transmit replicated data.

For example, referring to Fig. 4, LC1 of DRB1 and LC1 of DRB2 are transmitted through carrier 1, indicating whether the carrier uses replicated data transmission, representing whether LC1 of DRB1 and LC1 of DRB2 use replicated data transmission. According to IE allowedServingCells, determine the carrier and the binding relationship with the logical channel

The terminal device receives the RRC message from the base station, configures the RLC entity, and confirms the relationship information between the logical channel and the carrier according to the first information. The terminal device then transmits according to the initial copy data transmission mode.

The method also includes:

One of the MAC CE, RRC message, and DCI carries at least one of the following: the identity of the carrier, the identity of the cell group to which the carrier belongs, and an indication of whether the logical channel corresponding to the carrier transmits replicated data.

In the MAC CE subheader, a new LCID is introduced to indicate the new format of the replication data transmission activation/deactivation signaling. For example, referring to Figure 10, A/D: represents whether the corresponding logical channel transmits duplicate data; ServCellIndex: represents the indicated serving cell (carrier) identifier; CG-ID: represents the indicated serving cell (carrier) belongs to the cell group identifier.

The fourth treatment method,

The binding relationship between the carriers is used to indicate that at least two carriers with the binding relationship have the same copy transmission or no copy transmission status.

In other words, the first information is the carrier and the binding information between the carriers. Specifically, the data replication transmission activation/deactivation status of the indicated carrier and the carrier paired with the carrier can be used to be the same, that is, both the replicated data is transmitted or the replicated data is not transmitted.

Specific steps are as follows:

The base station determines to use the data replication transmission mode, and notifies the terminal equipment of the configuration information corresponding to the data replication mode and the first information, which is used to indicate that the first information is the carrier and the binding relationship between the carriers. Specifically, the carrier and the carrier have the same data copy transmission activation/deactivation status, that is, both transmit copy data or not transmit copy data. Further, the binding relationship between the carrier and the logical channel is determined according to the information of the carrier corresponding to the allowed use of the logical channel. Specifically, the carrier and the logical channel have the same data replication transmission activation/deactivation status, that is, both transmit replicated data or do not transmit replicated data. Alternatively, a combination with the third processing method may be used, and the first information carries the carrier and the carrier, and the binding relationship between the carrier and the LC.

For example, carrier 1 and carrier 2 are bound, by indicating whether carrier 1 uses replicated data transmission, and whether carrier 2 of the same generation uses replicated data transmission. Correspondingly, the logical channel or RLC entity that uses the carrier to transmit the copied data adopts the same data data transmission method (activation/deactivation)

Optionally, the base station adds an IE, boundServingCells, to the CellGroupConfig IE in the RRC reconfiguration IE, which is used to indicate the carrier bound to this carrier. For example, boundServingCells-r16SEQUENCE(SIZE(1..maxNrofServingCells-1))OFServCellIndexOPTIONAL,--PDCP-CADuplication. details as follows:

The terminal device receives the RRC message from the base station, configures the RLC entity, and confirms the relationship information between the carriers according to the first information. The terminal device then transmits according to the initial copy data transmission mode.

The format of MAC CE, RRC message, and DCI is the same as the third processing method. Specifically, one of MAC CE, RRC message, and DCI is used to instruct the terminal device to change the data copy transmission; one of the MAC CE, RRC message, and DCI One carries at least one of the following: the identity of the carrier, the identity of the cell group to which the carrier belongs, and an indication of whether the logical channel corresponding to the carrier transmits duplicate data.

Finally, the format of the MAC CE, RRC message, and DCI is explained. Since the prior art can only support data replication and transmission with a maximum of 2 legs, this does not match the requirement of R16 for more than two legs. And only supports one-bit activation/deactivation indication method. This method can only realize that all legs transmit replicated data (activation), or all legs do not transmit replicated data (deactivate, and only retain the main leg to transmit PDCP PDU Original) instruction result. However, once the base station wants to indicate different activation/deactivation behaviors (transmission or non-transmission) to different legs, it cannot perform the instruction. Therefore, the embodiment of the present invention introduces new dedicated information indication methods, such as the introduction of new MAC CE, RRC messages, and DCI formats. Each leg (logical channel) corresponding to each bearer uses a 1-bit indication to indicate whether the leg is Transfer copy data (activate/deactivate).

One of the optional formats of the new MAC CE, RRC message, and DCI is as follows:

Different columns correspond to different DRB IDs, or carrier IDs, or cell group IDs to which the carriers belong, and the corresponding methods are consistent with existing protocols; different rows correspond to a certain DRB, or carrier ID, or the cell group ID to which the carrier belongs. Different RLC entities; the value in the bit represents whether the RLC entity is used to transmit replicated data; the following is described by DRB:

Number of rows = max {the number of RLC entities/logical channels used to copy data output for any bearer configuration}. For example, the number of RLC entities configured for DRB 0 is 4, and the number of RLC entities configured for DRB 3 is 8, the MAC CE The number of rows is 8.

Or, the number of rows = the number of restricted RLC entities/logical channels used for transmitting replicated data for each bearer, and this value may be a preset value or a value configured by RRC.

For example, MCG has 2 DRBs configured with copy data transmission function, and the DRB IDs are 0, 3, 5, and 7 respectively;

The format of MAC CE is 4 bytes, so from column 1 to column 4 corresponding to these DRBs in ascending order of DRB ID at a time. For example, columns D0, D1, D2, and D3 correspond to

DRB ID

0, 3, 5, and 7, respectively. Different rows in each column indicate which RLC entities are used to transmit replicated data. Specifically, in this example, a maximum of 4 RLC entities may be used to transmit replicated data. Sort in the order of MCG first, then SCG, and sort the logical channel ID in ascending or descending order within each CG. Or, sort according to the order of SCG first and then MCG, and sort the logical channel IDs in ascending or descending order within each CG. For example, for each row of DRB0, from top to bottom, they represent

RLC entities

0, 1, 2, and 3.

Refer to Figure 11 for the specific process. After the terminal device determines and executes the data copy transmission configuration according to the first information and transmits according to the initial mode, it receives the instruction sent by the network side base station through the MAC CE of the new format, and the terminal device determines the data transmission according to the MAC CE instruction. Whether a leg transmits copied data.

It can be seen that by adopting the above solution, the indicated object can be determined through the first information. The indicated object has the same status of using copy transmission or not using copy transmission, and the first information can indicate the binding between logical channels. The fixed relationship, the binding relationship between DRB and/or SRB, and the binding relationship between carriers and logical channels or carriers; thereby providing a multi-dimensional data replication transmission control method that reduces indication overhead, thereby reducing air interface The overhead of signaling reduces the processing complexity of terminal equipment and base stations, and increases flexible control methods for data replication and transmission.

Example two

The embodiment of the present invention provides an instruction method for data copy transmission, which is applied to a terminal device, as shown in FIG. 12, including:

Step 301: Receive first information; where the first information is used to characterize binding information for data replication transmission, and the objects indicated in the first information use the same replication transmission status; and/or, the first information One piece of information is used to determine the binding information for data replication and transmission;

Wherein, the first information includes at least one of the following:

The binding relationship between logical channels;

The binding relationship between DRB and/or SRB;

The binding relationship between the carrier and the carried logical channel;

The binding relationship between carriers.

Binding relationship information of at least two logical channels;

First type mode information of at least two logical channels;

The second type mode information of at least two logical channels.

Wherein, the logical channel is a configured logical channel that can be used to transmit PDCP PDU and/or copy data thereof.

Specifically, the at least two logical channels indicated by the binding relationship information of the at least two logical channels have the same replication transmission or non-replication transmission status; specifically, the bound logical channel and the logical channel paired with it The data replication transmission activation/deactivation status is the same, that is, the replication data is transmitted or not.

or,

or

logical channels

1, 3, and 4, it is determined that the

logical channels

1, 3, and 4 have a binding relationship. Other granularities are handled in the same way. For example, for DRB or carrier, you can also set the binding identifier for it. When other SRB and/or DRB are also set with the corresponding binding identifier, the difference between DRB and SRB and/or DRB There is a binding relationship between them; I will not repeat them here.

The first approach,

For the specific process of this processing method, see Figure 3:

The network side may be the base station, determine the data replication transmission mode used, and notify the terminal device of the configuration information corresponding to the data replication mode and the first information; the first information is used to indicate the binding relationship between the logical channels. Specifically, the bound logical channel is the same as the data replication transmission activation/deactivation state of its paired logical channel, that is, both transmit the copied data or not transmit the copied data.

Further, this processing method includes sub-scheme 1:

The receiving the first information includes:

Receiving configuration messages corresponding to the at least two logical channels, where the configuration information is used to indicate the first information; wherein the configuration information includes the binding information of the logical channels; when the configuration information indicates When the binding information of is true, it characterizes that the logical channel is one of at least two logical channels with the same status of using copy transmission or not using copy transmission;

Based on the configuration message, the binding information of at least two logical channels is determined, and the at least two logical channels are controlled to transmit according to the initial replication data transmission mode.

In this solution, the network side can receive the use copy transmission or non-use copy transmission state of the logical channel indicated by the network side through one of the MAC control elements CE, RRC message, and DCI;

Wherein, one of the MAC CE, RRC message, and DCI carries at least one of the following information: a logical channel identifier, and a cell group CG identifier corresponding to the logical channel.

Another way of sending an indication may be: the configuration message further includes: a group identifier bound to the logical channel; the method further includes:

Use one of MAC CE, RRC message, or DCI to receive the transmission status of the logical channel with or without replication indicated by the network side;

One of the MAC CE, RRC message, and DCI carries at least one of the group identifier bound to the logical channel, the logical channel identifier, and the cell group CG identifier corresponding to the logical channel.

The format of the new information element (IE) boundFlag is the same as in the first embodiment, and the description will not be repeated.

Further, this processing method may also include sub-solution 2:

The receiving the first information includes:

Receiving configuration information corresponding to the first logical channel of the at least two logical channels sent by the network side; the configuration information includes the identifier of the logical channel bound to the first logical channel, and/or, and The CG identifier to which the logical channel bound to the first logical channel belongs.

The method further includes: obtaining, through one of the MAC control element CE, RRC message, and DCI, the status of using replication transmission or not using replication transmission of the logical channel indicated by the network side;

Wherein, one of the MAC CE, RRC message, and DCI carries at least one of the following: a logical channel and a CG identity of the cell group to which the logical channel belongs.

For example, a new IE, boundLogicalChannel, is used to configure the bound logical channel identifier corresponding to the logical channel and the cell group identifier to which the bound logical channel identifier belongs. Specifically, the IE is used to indicate the bound logical channel, which may include a logical channel identifier (LogicalChannelIdentity) and a cell group identifier (CG-identity). The specific IE content may be the same as in the first embodiment, and will not be repeated.

For the subsequent processing of the aforementioned two solutions, referring to Figure 3, the terminal device receives the RRC message from the base station (ie, the network side), configures the RLC entity according to the first information in the RRC message, and confirms the pairing information and/or according to the first information Paired logical channel. The terminal device then transmits according to the initial copy data transmission mode. Among them, the initial copy data transmission method can be included in the configuration information sent from the network side. Of course, it can also be the default initial copy data transmission method of the terminal device. It can be activated or deactivated, that is, use the copy transmission method or not. Copy the transmission method. Further, in the initial transmission mode configuration, the RLC entity used for activation or deactivation can be configured.

Sub-program 3:

Use one of MAC CE, RRC message, or DCI to obtain the status of using replication transmission or non-use replication transmission of the logical channel corresponding to the first mode, and/or use replication transmission or non-use of the logical channel corresponding to the second mode Copy the transmission status.

The RRC configuration, for example, IE BoundMode, is used to configure the mode information of the logical channel binding. For details, refer to the description of Embodiment 1, which will not be repeated here.

Sub-program 4:

Obtain the use copy transmission or non-use copy transmission status of the logical channel corresponding to the full mode and the use copy transmission or non-use copy transmission status of the logical channel corresponding to the selected mode through one of the MAC CE, RRC message, and DCI.

channels

In one of the MAC CE, RRC message, and DCI, at least one bit in the first row is used to indicate the status of using copy transmission or not using copy transmission of the logical channel corresponding to the full mode, and the difference in the second row The bit indicates the copy transmission or non-copy transmission state corresponding to at least one logical channel corresponding to the selection mode. For example, referring to Figures 7 and 8, the first row in Figure 7 represents whether the logical channel of full mode transmits copy data, and the second row represents whether the logical channel of select mode transmits copy data; or, as shown in Figure 8, in the information Middle A/D: Represents whether the corresponding logical channel transmits replicated data; LogicalchannelIdetity: Represents the indicated logical channel identifier; CG-ID: Represents the Cell Group ID to which the indicated logical channel belongs; Index: Represents which of the corresponding indications can be used to transmit replicated data Logical channel combination.

The second processing method,

Specific steps are as follows:

The RRC IE is as follows: for example, in the RadioBearerConfig IE in the RRC reconfiguration IE, a newly added IE, boundDRBs, is used to configure the identity of the bearer bound to this bearer. The details are the same as in the first embodiment and will not be repeated.

The method also includes:

Obtain the data copy transmission change indication indicated by the network side through one of MAC CE, RRC message, and DCI;

One of the MAC CE, RRC message, and DCI carries an identification of DRB or SRB, or carries an identification of DRB or SRB and an indication of whether the logical channel corresponding to DRB or SRB transmits replicated data.

The MAC CE can be in the following format:

The third processing method,

Specific steps are as follows:

The method also includes:

The fourth treatment method,

Specific steps are as follows:

For example, carrier 1 and carrier 2 are bound, by indicating whether carrier 1 uses replicated data transmission, and whether carrier 2 of the same generation uses replicated data transmission. Correspondingly, the logical channel or RLC entity that uses the carrier to transmit the copied data adopts the same data transmission method (activation/deactivation)

Optionally, the base station adds an IE, boundServingCells, to the CellGroupConfig IE in the RRC reconfiguration IE, which is used to indicate the carrier bound to this carrier. For example, it can be the same as the first embodiment, and will not be repeated here.

The format of the MAC CE, RRC message, and DCI is the same as the third processing method, specifically, the change instruction of the data copy transmission indicated by the network side is obtained through one of the MAC CE, RRC message, and DCI;

Finally, the format of the MAC CE, RRC message, and DCI is explained. Since the prior art can only support data replication and transmission with a maximum of 2 legs, this does not match the requirement of R16 for more than two legs. And only supports one-bit activation/deactivation indication method. This method can only realize that all legs transmit replicated data (activation), or all legs do not transmit replicated data (deactivate, and only retain the main leg to transmit PDCP PDU Original) instruction result. However, once the base station wants to indicate different activation/deactivation behaviors (transmission or non-transmission) to different legs, it cannot perform the instruction. Therefore, the embodiment of the present invention introduces new dedicated information indication methods, such as the introduction of new MAC CE, RRC messages, and DCI formats. Each leg (logical channel) corresponding to each bearer uses 1 bit indication to indicate whether the leg is Transfer copy data (activate/deactivate).

DRB ID

RLC entities

0, 1, 2, and 3.

Example three

The embodiment of the present invention provides a network device, as shown in FIG. 13, including:

The first communication unit 41 sends first information to the terminal device; wherein the first information is used to characterize binding information for data replication transmission, and the objects indicated in the first information use the same replication transmission state; and /Or, the first information is used to determine binding information for data replication transmission;

Wherein, the first information includes at least one of the following:

The binding relationship between logical channels;

The binding relationship between DRB and/or SRB;

The binding relationship between the carrier and the carried logical channel;

The binding relationship between carriers.

Binding relationship information of at least two logical channels;

First type mode information of at least two logical channels;

The second type mode information of at least two logical channels.

or,

or

logical channels

1, 3, and 4, it is determined that the

logical channels

The first approach,

For the specific process of this processing method, see Figure 3:

Further, this processing method includes sub-scheme 1:

The network equipment also includes:

The first processing unit 42 determines that there are at least two logical channels with the same status of using replication transmission or not using replication transmission; the first communication unit 41 is sending configuration messages corresponding to the at least two logical channels to the terminal device, so The configuration information is used to indicate the first information;

In this solution, the first communication unit 41 can indicate to the terminal device the status of using replication transmission or not using replication transmission of the logical channel through one of the MAC control elements CE, RRC message, and DCI; wherein, the MAC CE, RRC message, One of the DCIs carries at least one of the following information: a logical channel identifier, and a cell group CG identifier corresponding to the logical channel.

Another way of sending instructions may be: the configuration message further includes: the group identifier bound to the logical channel; the first communication unit 41 indicates the logic to the terminal device through one of MAC CE, RRC message, and DCI Channel use replication transmission or non-use replication transmission status; wherein, one of the MAC CE, RRC message, and DCI carries the group identifier bound to the logical channel, the logical channel identifier, and the cell group CG identifier corresponding to the logical channel At least one.

The format of the new information element (IE) boundFlag is the same as that in the first embodiment, and will not be repeated.

Further, this processing method may also include sub-solution 2:

The first processing unit 42 determines at least two logical channels with the same activation or deactivation state;

The first communication unit 41 sends configuration information corresponding to the first logical channel of the at least two logical channels to the terminal device; the configuration information includes the identifier of the logical channel bound to the first logical channel, And/or, the CG identifier to which the logical channel bound to the first logical channel belongs.

The first communication unit 41 indicates to the terminal device the status of using replication transmission or not using replication transmission of the logical channel through one of the MAC control elements CE, RRC message, and DCI; wherein, one of the MAC CE, RRC message, and DCI One carries at least one of the following: the logical channel and the CG identity of the cell group to which the logical channel belongs.

For example, a new IE, boundLogicalChannel, is used to configure the bound logical channel identifier corresponding to the logical channel and the cell group identifier to which the bound logical channel identifier belongs. Specifically, the IE is used to indicate the bound logical channel, which may include a logical channel identifier (LogicalChannelIdentity) and a cell group identifier (CG-identity). For example, it may be as shown in Embodiment 1, and will not be repeated here.

When the first processing unit 42 determines that it is necessary to change the data replication mode, such as when data replication transmission is activated/deactivated, the first communication unit 41 instructs the terminal device to change the status of the replication data transmission to activation or deactivation through dedicated information. Among them, the dedicated information can be MAC CE, RRC, or DCI signaling.

The formats of MAC CE, RRC, and DCI can be shown in Figures 5 and 6, taking MAC CE as an example. A new LCID can be introduced in the MAC CE sub-header to indicate replication data transmission activation/deactivation signaling New format. A/D in Figure 6: Represents whether the corresponding logical channel transmits duplicate data. LogicalchannelIdetity: Represents the indicated logical channel identifier. CG-ID: Represents the cell group identifier to which the indicated logical channel belongs.

Sub-program 3:

The first communication unit 41 indicates to the terminal device the use of replication transmission or non-use replication transmission status of the logical channel corresponding to the first mode through one of the MAC CE, RRC message, and DCI, and/or the logic corresponding to the second mode The channel's use copy transmission or not use copy transmission status.

The RRC configuration, for example, IE BoundMode, is used to configure the mode information of the logical channel binding. For details, refer to Embodiment 1.

Sub-program 4:

The first communication unit 41 indicates to the terminal device the use of copy transmission or non-use copy transmission status of the logical channel corresponding to the full mode through one of the MAC CE, RRC message, and DCI, and/or the selection of the logical channel corresponding to the mode Use copy transfer or not use copy transfer status.

channels

The second processing method,

Specific steps are as follows:

, RRC IE see below: For example, in the RadioBearerConfig IE in the RRC reconfiguration IE, a newly added IE, boundDRBs, is used to configure the identity of the bearer bound to this bearer. See Example 1 for details.

The first communication unit 41 notifies all the data replication transmission configuration information and the first information through the RRC reconfiguration message.

Optionally, the first communication unit 41 adds an IE to the LogicalChannelConfig IE in the RRC reconfiguration IE for notifying the first information. The advantage of reusing RRC reconfiguration messages is to reuse existing messages and procedures as much as possible and reduce the complexity of terminal equipment. For the specific IE format, please refer to the foregoing description and will not be repeated.

The first communication unit 41 indicates to the terminal device a change instruction of data copy transmission through one of MAC CE, RRC message, and DCI;

The MAC CE can be in the following format:

The third processing method,

details as follows:

The first processing unit determines to use the data replication transmission mode, and notifies the terminal device of the configuration information corresponding to the data replication mode, and the first information used to indicate that the first information is the binding relationship between the carrier and the logical channel (LC). Specifically, the carrier and the logical channel have the same data replication transmission activation/deactivation status, that is, both transmit replicated data or do not transmit replicated data.

The fourth treatment method,

The formats of MAC CE, RRC message, and DCI are the same as the third processing mode, specifically the first communication unit 41 instructs the terminal device to change the data copy transmission instruction through one of MAC CE, RRC message, and DCI; One of the RRC message and the DCI carries at least one of the following: the identity of the carrier, the identity of the cell group to which the carrier belongs, and an indication of whether the logical channel corresponding to the carrier transmits replicated data.

Finally, the format of MAC CE, RRC message, and DCI is described. The embodiment of the present invention introduces new dedicated information indication methods, such as the introduction of new MAC CE, RRC messages, and DCI formats, corresponding to each leg (logical Channels) each use a 1-bit indicator to indicate whether the leg transmits copy data (activation/deactivation).

DRB ID

RLC entities

0, 1, 2, and 3.

Example 4

The embodiment of the present invention provides a terminal device, as shown in FIG. 14, including:

The second communication unit 51 receives first information; wherein the first information is used to characterize binding information for data replication transmission, and the objects indicated in the first information use the same replication transmission state; and/or, The first information is used to determine binding information for data replication transmission;

Wherein, the first information includes at least one of the following:

The binding relationship between logical channels;

The binding relationship between DRB and/or SRB;

The binding relationship between the carrier and the carried logical channel;

The binding relationship between carriers.

Binding relationship information of at least two logical channels;

First type mode information of at least two logical channels;

The second type mode information of at least two logical channels.

or,

or

logical channels

1, 3, and 4, it is determined that the

logical channels

The first approach,

For the specific process of this processing method, see Figure 3:

Further, this processing method includes sub-scheme 1:

The second communication unit 51 receives configuration messages corresponding to the at least two logical channels, where the configuration information is used to indicate the first information; wherein, the configuration information includes binding information of the logical channels When the binding information indicated in the configuration information is true, it indicates that the logical channel is one of at least two logical channels with the same state of using copy transmission or not using copy transmission;

In this solution, the second communication unit 51 receives, through one of the MAC control element CE, the RRC message, and the DCI, the status of using replication transmission or not using replication transmission of the logical channel indicated by the network side;

Another way to send instructions may be: the configuration message further includes: the group identifier bound to the logical channel; the second communication unit 51 receives the logic indicated by the network side through one of MAC CE, RRC message, and DCI Channel use copy transmission or not use copy transmission status;

Further, this processing method may also include sub-solution 2:

The second communication unit 51 receives configuration information corresponding to the first logical channel of the at least two logical channels sent by the network side; the configuration information includes the logical channel bound to the first logical channel And/or the CG identifier to which the logical channel bound to the first logical channel belongs.

Sub-program 3:

The second communication unit 51, through one of MAC CE, RRC message, and DCI, obtains the status of the logical channel corresponding to the first mode using replication transmission or not using replication transmission, and/or the status of the logical channel corresponding to the second mode Use copy transfer or not use copy transfer status.

Sub-program 4:

The second communication unit 51 obtains the use copy transmission or non-use copy transmission status of the logical channel corresponding to the full mode through one of the MAC CE, RRC message, and DCI, and the use copy transmission or non-use copy transmission status of the logical channel corresponding to the selected mode. Use copy transfer status.

Specifically, the first information may be mode information of a logical channel, including full mode and select mode. Among them, full mode represents that the logical channel is paired with other logical channels to form a group. The group of logical channels uses a common bit to indicate whether to transmit replicated data, and select mode represents a logical channel unpaired group, which requires a separate bit to indicate whether to transmit replicated data.

channels

The second processing method,

The second communication unit 51 obtains all the data replication transmission configuration information and the first information through the RRC reconfiguration message.

The terminal device also includes a second processing unit 52, which receives the RRC message from the base station, configures the RLC entity, and confirms the pairing information and the paired bearer information according to the first information. The terminal device then transmits according to the initial copy data transmission mode.

The second communication unit 51 obtains the data copy transmission change indication indicated by the network side through one of the MAC CE, RRC message, and DCI;

The MAC CE can be in the following format:

The third processing method,

The second communication unit 51 receives the RRC message from the base station, and the second processing unit 52 configures the RLC entity, and confirms the relationship information between the logical channel and the carrier according to the first information. The terminal device then transmits according to the initial copy data transmission mode.

The second communication unit 51 obtains the data copy transmission change indication indicated by the network side through one of MAC CE, RRC message, and DCI;

In the MAC CE subheader, a new LCID is introduced to indicate the new format of the replication data transmission activation/deactivation signaling. For example, referring to Figure 10, A/D: represents whether the corresponding logical channel transmits duplicate data; ServCellIndex: represents the indicated serving cell (carrier) identification; CG-ID: represents the indicated serving cell (carrier) belongs to the cell group identification.

The fourth treatment method,

It should be pointed out that the processing of each functional unit in this embodiment is the same as the foregoing method embodiment, and therefore will not be repeated.

FIG. 15 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application. The communication device may be the aforementioned terminal device or network device in this embodiment. The communication device 600 shown in FIG. 6 includes a processor 610, and the processor 610 can call and run a computer program from the memory to implement the method in the embodiments of the present application.

Optionally, as shown in FIG. 15, the communication device 600 may further include a memory 620. The processor 610 can call and run a computer program from the memory 620 to implement the method in the embodiments of the present application.

The memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.

Optionally, as shown in FIG. 15, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.

Among them, the transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of antennas may be one or more.

Optionally, the communication device 600 may specifically be a network device according to an embodiment of the present application, and the communication device 600 may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. .

Optionally, the communication device 600 may specifically be a terminal device or a network device in an embodiment of the application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the application. It's concise, so I won't repeat it here.

FIG. 16 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 700 shown in FIG. 16 includes a processor 710, and the processor 710 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 16, the chip 700 may further include a memory 720. The processor 710 can call and run a computer program from the memory 720 to implement the method in the embodiments of the present application.

The memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.

Optionally, the chip 700 may further include an input interface 730. The processor 710 can control the input interface 730 to communicate with other devices or chips. Specifically, it can obtain information or data sent by other devices or chips.

Optionally, the chip 700 may further include an output interface 740. The processor 710 can control the output interface 740 to communicate with other devices or chips. Specifically, it can output information or data to other devices or chips.

Optionally, the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not described herein again.

Optionally, the chip can be applied to the terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, no further description is provided here.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-level chips, system chips, chip systems, or system-on-chip chips.

FIG. 17 is a schematic block diagram of a communication system 800 provided by an embodiment of the present application. As shown in FIG. 17, the communication system 800 includes a terminal device 810 and a network device 820.

Among them, the terminal device 810 can be used to implement the corresponding function implemented by the terminal device in the above method, and the network device 820 can be used to implement the corresponding function implemented by the network device in the above method. .

It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method embodiments may be completed by instructions in the form of hardware integrated logic circuits or software in the processor. The aforementioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, and a register. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be Read-Only Memory (ROM), Programmable Read-Only Memory (Programmable ROM, PROM), Erasable Programmable Read-Only Memory (Erasable PROM, EPROM), and Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM) ) And direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to these and any other suitable types of memories.

It should be understood that the foregoing memory is exemplary but not limiting, for example, the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data) SDRAM (DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memories in the embodiments of the present application are intended to include but are not limited to these and any other suitable types of memories.

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

Optionally, the computer-readable storage medium may be applied to the network device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiments of the present application. For brevity, here No longer.

Optionally, the computer-readable storage medium can be applied to the terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, for simplicity And will not be repeated here.

An embodiment of the present application also provides a computer program product, including computer program instructions.

Optionally, the computer program product may be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. Repeat again.

Optionally, the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, I will not repeat them here.

The embodiment of the application also provides a computer program.

Optionally, the computer program can be applied to the network device in the embodiment of the present application. When the computer program runs on the computer, the computer is allowed to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. And will not be repeated here.

Optionally, the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application. When the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.

Those of ordinary skill in the art may realize that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application of the technical solution and design constraints. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that for the convenience and conciseness of the description, the specific working processes of the above-described systems, devices, and units can refer to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application essentially or part of the contribution to the existing technology or part of the technical solution can be embodied in the form of a software product, the computer software product is stored in a storage medium, including Several instructions are used to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

The above are only specific implementations of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method for indicating data replication and transmission, applied to a network device, and the method includes:

Send first information to the terminal device; wherein the first information is used to characterize binding information for data replication transmission, and the objects indicated in the first information use the same replication transmission status; and/or, the first information One piece of information is used to determine binding information for data replication and transmission.
The method according to claim 1, wherein the first information includes at least one of the following:

The binding relationship between logical channels;

The binding relationship between data radio bearer DRB and/or signaling radio bearer SRB;

The binding relationship between the carrier and the carried logical channel;

The binding relationship between carriers.
The method according to claim 1 or 2, wherein the object is one of a bearer, a radio link layer control protocol RLC entity, and a logical channel.
The method according to claim 2 or 3, wherein the logical channel is a logical channel used to transmit PDCP PDU or PDCP PDU duplicate data.
The method according to claim 4, wherein the binding relationship between the logical channels includes one of the following:

Binding relationship information of at least two logical channels;

First type mode information of at least two logical channels;

The second type mode information of at least two logical channels.
The method according to claim 5, wherein the at least two logical channels indicated by the binding relationship information of the at least two logical channels have the same status of using copy transmission or not using copy transmission;

or,

The first-type mode information of the at least two logical channels includes at least one mode; wherein, the corresponding logical channels in the same mode have the same transmission status with or without copying, and the corresponding logical channels between different modes The use of copy transmission or non-use copy transmission status is the same or different;

or

The second-type mode information of the at least two logical channels includes at least one full mode and a selection mode; wherein, the corresponding logical channels in the same full mode have the same and different transmission status with or without copying. The use copy transmission or non-use copy transmission states of the corresponding logical channels between all modes are the same or different; the use copy transmission or non-use copy transmission states of the logical channels corresponding to the selected mode are respectively indicated.
The method according to claim 6, wherein the sending the first information to the terminal device comprises:

Confirm that there are at least two logical channels with the same status of using copy transmission or not using copy transmission;

Sending configuration messages corresponding to the at least two logical channels to the terminal device, where the configuration information is used to indicate the first information;

Wherein, the configuration information includes the binding information of the logical channel; when the binding information indicated in the configuration information is true, it indicates that the logical channel is at least with the same status of using copy transmission or not using copy transmission. One of two logical channels.
The method of claim 7, wherein the method further comprises:

Indicate to the terminal device the status of using copy transmission or not using copy transmission of the logical channel through one of the media access control MAC control element CE, radio resource control RRC message, and downlink control information DCI;

Wherein, one of the MAC CE, RRC message, and DCI carries the CG identity of the cell group corresponding to the logical channel.
8. The method according to claim 7, wherein the configuration message further includes: a group identifier bound to the logical channel; the method further includes:

Indicate to the terminal device the status of using replication transmission or not using replication transmission of the logical channel through one of MAC CE, RRC message, and DCI;

One of the MAC CE, RRC message, and DCI carries the group identifier bound to the logical channel.
The method according to claim 6, wherein the sending the first information to the terminal device comprises:

Determine at least two logical channels with the same activation or deactivation status;

Send configuration information corresponding to the first logical channel of the at least two logical channels to the terminal device; the configuration information contains the identifier of the logical channel bound to the first logical channel, and/or The CG identifier to which the logical channel bound to the first logical channel belongs.
The method of claim 10, wherein the method further comprises:

Indicate to the terminal device the status of using copy transmission or not using copy transmission of the logical channel through one of the MAC control element CE, RRC message, and DCI;

Wherein, one of the MAC CE, RRC message, and DCI carries at least one of the following: a logical channel and a CG identity of the cell group to which the logical channel belongs.
The method according to any one of claims 6-11, wherein the first information is carried by an RRC reconfiguration message.
The method of claim 6, wherein the method further comprises:

Through one of MAC CE, RRC message, and DCI to indicate to the terminal device the status of using replication transmission or not using replication transmission of the logical channel corresponding to the first mode, and/or, the status of using replication transmission of the logical channel corresponding to the second mode or Do not use copy transfer status.
The method according to claim 13, wherein in one of the MAC CE, RRC message, and DCI, different rows are used to indicate the status of using copy transmission or not using copy transmission of the logical channel corresponding to the first mode, and /Or, used to indicate the status of using copy transmission or not using copy transmission of the logical channel corresponding to the second mode.
The method of claim 6, wherein the method further comprises:

Use one of MAC CE, RRC message, or DCI to indicate to the terminal device the status of using copy transmission or not using copy transmission of the logical channel corresponding to the full mode, and/or the use of copy transmission or not using the logical channel corresponding to the selected mode Copy the transmission status.
The method according to claim 15, wherein in one of the MAC CE, RRC message, and DCI, at least one bit in the first row indicates whether to use copy transmission or not to use copy of the logical channel corresponding to the full mode The transmission status, and/or, the at least one logical channel corresponding to the selected mode is used to indicate the copy transmission or non-replication transmission status respectively corresponding to the at least one logical channel corresponding to the selected mode through different bits in the second row.
The method according to claim 2, wherein the DRB indicated in the binding relationship between the DRB and/or SRB has the same data replication transmission activation or data replication transmission deactivation status as the SRB and/or DRB ；

Alternatively, the SRB indicated in the binding relationship between the DRB and/or SRB has the same data replication transmission activation or data replication transmission deactivation state as the SRB and/or DRB.
The method of claim 17, wherein the method further comprises:

Instruct the terminal device to change the data copy transmission instruction through one of MAC CE, RRC message, and DCI;

One of the MAC CE, RRC message, and DCI carries an identification of DRB or SRB, or carries an identification of DRB or SRB, and an indication of whether the logical channel corresponding to DRB or SRB transmits replicated data.
The method according to claim 2, wherein the binding relationship between the carrier and the bearer logical channel is used to determine whether the bearer logical channel is transmitted by indicating whether the carrier is used for copy transmission or not using copy transmission status Copy the data.
The method according to claim 2, wherein the binding relationship between the carriers is used to indicate that the at least two carriers with the binding relationship have the same copy transmission or no copy transmission status.
The method according to claim 19 or 20, wherein the method further comprises:

Instruct the terminal device to change the data copy transmission instruction through one of MAC CE, RRC message, and DCI;

One of the MAC CE, RRC message, and DCI carries at least one of the following: the identity of the carrier, the identity of the cell group to which the carrier belongs, and an indication of whether the logical channel corresponding to the carrier transmits replicated data.
An instruction method for data copy transmission, applied to a terminal device, and the method includes:

Receiving first information; wherein the first information is used to characterize binding information for data replication transmission, and the objects indicated in the first information use the same replication transmission status; and/or, the first information is used to determine Binding information for data replication transmission.
The method according to claim 22, wherein the first information includes at least one of the following:

The binding relationship between logical channels;

The binding relationship between DRB and/or SRB;

The binding relationship between the carrier and the carried logical channel;

The binding relationship between carriers.
The method according to claim 22 or 23, wherein the object is one of bearer, RLC, and logical channel.
The method according to claim 23 or 24, wherein the logical channel is a logical channel used to transmit PDCP PDU or PDCP PDU duplicate data.
The method according to claim 25, wherein the binding relationship between the logical channels comprises one of the following:

Binding relationship information of at least two logical channels;

First type mode information of at least two logical channels;

The second type mode information of at least two logical channels.
The method according to claim 26, wherein the at least two logical channels indicated by the binding relationship information of the at least two logical channels have the same status of using copy transmission or not using copy transmission;

or,

The first-type mode information of the at least two logical channels includes at least one mode; wherein, the corresponding logical channels in the same mode have the same transmission status with or without copying, and the corresponding logical channels between different modes The use of copy transmission or non-use copy transmission status is the same or different;

or

The second-type mode information of the at least two logical channels includes at least one full mode and a selection mode; wherein, the corresponding logical channels in the same full mode have the same and different transmission status with or without copying. The use copy transmission or non-use copy transmission states of the corresponding logical channels between all modes are the same or different; the use copy transmission or non-use copy transmission states of the logical channels corresponding to the selected mode are respectively indicated.
The method according to claim 27, wherein said receiving the first information comprises:

Receiving configuration messages corresponding to the at least two logical channels, where the configuration information is used to indicate the first information; wherein the configuration information includes the binding information of the logical channels; when the configuration information indicates When the binding information of is true, it characterizes that the logical channel is one of at least two logical channels with the same status of using copy transmission or not using copy transmission;

Based on the configuration message, the binding information of at least two logical channels is determined, and the at least two logical channels are controlled to transmit according to the initial replication data transmission mode.
The method of claim 28, wherein the method further comprises:

Receive the use copy transmission or non-use copy transmission status of the logical channel indicated by the network side through one of the MAC control elements CE, RRC message, and DCI;

Wherein, one of the MAC CE, RRC message, and DCI carries the CG identity of the cell group corresponding to the logical channel.
The method according to claim 28, wherein the configuration message further comprises: a group identifier bound to the logical channel; the method further comprises:

Use one of MAC CE, RRC message, and DCI to receive the status of using replication transmission or not using replication transmission of the logical channel indicated by the network side;

One of the MAC CE, RRC message, and DCI carries the group identifier bound to the logical channel.
The method according to claim 27, wherein said receiving the first information comprises:

Receiving configuration information corresponding to the first logical channel of the at least two logical channels sent by the network side; the configuration information includes the identifier of the logical channel bound to the first logical channel, and/or, and The CG identifier to which the logical channel bound to the first logical channel belongs.
The method of claim 31, wherein the method further comprises:

Obtain the status of using replication transmission or not using replication transmission of the logical channel indicated by the network side through one of the MAC control elements CE, RRC message, and DCI;

Wherein, one of the MAC CE, RRC message, and DCI carries at least one of the following: a logical channel and a CG identity of the cell group to which the logical channel belongs.
The method according to any one of claims 27-32, wherein the first information is carried by an RRC reconfiguration message.
The method according to claim 26, wherein the method further comprises:

Use one of MAC CE, RRC message, or DCI to obtain the status of using replication transmission or non-use replication transmission of the logical channel corresponding to the first mode, and/or use replication transmission or non-use of the logical channel corresponding to the second mode Copy the transmission status.
The method according to claim 34, wherein in one of the MAC CE, RRC message, and DCI, different rows are used to indicate the status of using copy transmission or not using copy transmission of the logical channel corresponding to the first mode, and /Or, used to indicate the status of using copy transmission or not using copy transmission of the logical channel corresponding to the second mode.
The method according to claim 26, wherein the method further comprises:

Obtain the use copy transmission or non-use copy transmission status of the logical channel corresponding to the full mode and the use copy transmission or non-use copy transmission status of the logical channel corresponding to the selected mode through one of the MAC CE, RRC message, and DCI.
The method according to claim 36, wherein in one of the MAC CE, RRC message, and DCI, at least one bit in the first row indicates whether to use copy transmission or not to use copy of the logical channel corresponding to the full mode The transmission status and the at least one logical channel corresponding to the selected mode is indicated by different bits in the second row, respectively corresponding to the replication transmission or non-replication transmission status.
The method according to claim 23, wherein the DRB indicated in the binding relationship between the DRB and/or SRB has the same data replication transmission activation or data replication transmission deactivation status as the SRB and/or DRB ；

Alternatively, the SRB indicated in the binding relationship between the DRB and/or SRB has the same data replication transmission activation or data replication transmission deactivation state as the SRB and/or DRB.
The method of claim 38, wherein the method further comprises:

Obtain the data copy transmission change indication indicated by the network side through one of MAC CE, RRC message, and DCI;

One of the MAC CE, RRC message, and DCI carries an identification of DRB or SRB, or carries an identification of DRB or SRB and an indication of whether the logical channel corresponding to DRB or SRB transmits replicated data.
The method according to claim 23, wherein the binding relationship between the carrier and the bearer logical channel is used to determine whether the bearer logical channel is transmitted by indicating whether the carrier is used for copy transmission or not using copy transmission status Copy the data.
23. The method according to claim 23, wherein the binding relationship between the carriers is used to indicate that at least two carriers having the binding relationship have the same copy transmission or non-copy transmission status.
The method according to claim 40 or 41, wherein the method further comprises:

Obtain the data copy transmission change indication indicated by the network side through one of MAC CE, RRC message, and DCI;

One of the MAC CE, RRC message, and DCI carries at least one of the following: the identity of the carrier, the identity of the cell group to which the carrier belongs, and an indication of whether the logical channel corresponding to the carrier transmits replicated data.
A network device, including:

The first communication unit sends first information to the terminal device; wherein the first information is used to characterize binding information for data replication transmission, and the objects indicated in the first information use the same replication transmission status; and/ Or, the first information is used to determine binding information for data replication transmission.
The network device according to claim 43, wherein the first information includes at least one of the following:

The binding relationship between logical channels;

The binding relationship between DRB and/or SRB;

The binding relationship between the carrier and the carried logical channel;

The binding relationship between carriers.
The network device according to claim 43 or 44, wherein the object is one of a bearer, a radio link layer control protocol RLC entity, and a logical channel.
The network device according to claim 44 or 45, wherein the logical channel is a logical channel used to transmit PDCP PDU or PDCP PDU duplicate data.
The network device according to claim 46, wherein the binding relationship between the logical channels comprises one of the following:

Binding relationship information of at least two logical channels;

First type mode information of at least two logical channels;

The second type mode information of at least two logical channels.
The network device according to claim 47, wherein the at least two logical channels indicated by the binding relationship information of the at least two logical channels have the same status of using copy transmission or not using copy transmission;

or,

The first-type mode information of the at least two logical channels includes at least one mode; wherein, the corresponding logical channels in the same mode have the same transmission status with or without copying, and the corresponding logical channels between different modes The use of copy transmission or non-use copy transmission status is the same or different;

or

The second-type mode information of the at least two logical channels includes at least one full mode and a selection mode; wherein, the corresponding logical channels in the same full mode have the same and different transmission status with or without copying. The use copy transmission or non-use copy transmission states of the corresponding logical channels between all modes are the same or different; the use copy transmission or non-use copy transmission states of the logical channels corresponding to the selected mode are respectively indicated.
The network device according to claim 48, wherein the network device further comprises:

The first processing unit determines that there are at least two logical channels with the same status of using copy transmission or not using copy transmission;

The first communication unit is sending configuration messages corresponding to the at least two logical channels to a terminal device, where the configuration information is used to indicate the first information;

Wherein, the configuration information includes the binding information of the logical channel; when the binding information indicated in the configuration information is true, it indicates that the logical channel is at least with the same status of using copy transmission or not using copy transmission. One of two logical channels.
The network device according to claim 49, wherein the first communication unit indicates to the terminal device the status of using copy transmission or not using copy transmission of the logical channel through one of a MAC control element CE, an RRC message, and DCI;

Wherein, one of the MAC CE, RRC message, and DCI carries the CG identity of the cell group corresponding to the logical channel.
The network device according to claim 49, wherein the first communication unit indicates to the terminal device the status of using copy transmission or not using copy transmission of the logical channel through one of MAC CE, RRC message, and DCI;

One of the MAC CE, RRC message, and DCI carries the group identifier bound to the logical channel.
The network device according to claim 48, wherein the network device further comprises:

The first processing unit determines at least two logical channels with the same activation or deactivation state;

The first communication unit sends configuration information corresponding to the first logical channel of the at least two logical channels to the terminal device; the configuration information includes the identifier of the logical channel bound to the first logical channel , And/or, the CG identifier to which the logical channel bound to the first logical channel belongs.
The network device according to claim 52, wherein the first communication unit indicates to the terminal device the status of using copy transmission or not using copy transmission of the logical channel through one of the MAC control element CE, RRC message, and DCI;

Wherein, one of the MAC CE, RRC message, and DCI carries at least one of the following: a logical channel and a CG identity of the cell group to which the logical channel belongs.
The network device according to any one of claims 48-53, wherein the first information is carried by an RRC reconfiguration message.
The network device according to claim 48, wherein the first communication unit instructs the terminal device to use copy transmission or not to use copy transmission of the logical channel corresponding to the first mode through one of MAC CE, RRC message, and DCI Status, and/or status of using copy transmission or not using copy transmission of the logical channel corresponding to the second mode.
The network device according to claim 55, wherein in one of the MAC CE, RRC message, and DCI, different rows indicate the status of using copy transmission or not using copy transmission of the logical channel corresponding to the first mode, And/or, it is used to indicate the status of using copy transmission or not using copy transmission of the logical channel corresponding to the second mode.
The network device according to claim 48, wherein the first communication unit indicates to the terminal device the status of using copy transmission or not using copy transmission of the logical channel corresponding to the full mode through one of MAC CE, RRC message, and DCI , And/or, select whether to use copy transmission or not to use copy transmission status of the logical channel corresponding to the mode.
The network device according to claim 57, wherein in one of the MAC CE, RRC message, and DCI, at least one bit in the first row indicates the use, replication, or non-use of the logical channel corresponding to the full mode The copy transmission status, and/or, the at least one logical channel corresponding to the selection mode is used to indicate the copy transmission or non-use copy transmission status respectively corresponding to the at least one logical channel corresponding to the selected mode through different bits in the second row.
The network device according to claim 44, wherein the DRB indicated in the binding relationship between the DRB and/or SRB has the same data replication transmission activation or data replication transmission deactivation as the SRB and/or DRB status;

Alternatively, the SRB indicated in the binding relationship between the DRB and/or SRB has the same data replication transmission activation or data replication transmission deactivation state as the SRB and/or DRB.
The network device according to claim 59, wherein the first communication unit instructs the terminal device to change the data copy transmission instruction through one of MAC CE, RRC message, and DCI;

One of the MAC CE, RRC message, and DCI carries an identification of DRB or SRB, or carries an identification of DRB or SRB, and an indication of whether the logical channel corresponding to DRB or SRB transmits replicated data.
The network device according to claim 44, wherein the binding relationship between the carrier and the bearer logical channel is used to determine whether the bearer logical channel is valid by indicating whether the carrier is used to replicate transmission or not to use replicated transmission. Transfer copied data.
The network device according to claim 44, wherein the binding relationship between the carriers is used to indicate that at least two carriers having the binding relationship have the same copy transmission or non-copy transmission status.
The network device according to claim 61 or 62, wherein the first communication unit indicates to the terminal device a change instruction of data copy transmission through one of MAC CE, RRC message, and DCI;

One of the MAC CE, RRC message, and DCI carries at least one of the following: the identity of the carrier, the identity of the cell group to which the carrier belongs, and an indication of whether the logical channel corresponding to the carrier transmits replicated data.
A terminal device, including:

The second communication unit receives first information; wherein the first information is used to characterize binding information for data replication transmission, and the objects indicated in the first information use the same replication transmission status; and/or, The first information is used to determine binding information for data replication transmission.
The terminal device according to claim 64, wherein the first information includes at least one of the following:

The binding relationship between logical channels;

The binding relationship between DRB and/or SRB;

The binding relationship between the carrier and the carried logical channel;

The binding relationship between carriers.
The terminal device according to claim 64 or 65, wherein the object is one of bearer, RLC, and logical channel.
The terminal device according to claim 65 or 66, wherein the logical channel is a logical channel used to transmit PDCP PDU or PDCP PDU duplicate data.
The terminal device according to claim 67, wherein the binding relationship between the logical channels comprises one of the following:

Binding relationship information of at least two logical channels;

First type mode information of at least two logical channels;

The second type mode information of at least two logical channels.
The terminal device according to claim 68, wherein the at least two logical channels indicated by the binding relationship information of the at least two logical channels have the same status of using copy transmission or not using copy transmission;

or,

The first-type mode information of the at least two logical channels includes at least one mode; wherein, the corresponding logical channels in the same mode have the same transmission status with or without copying, and the corresponding logical channels between different modes The use of copy transmission or non-use copy transmission status is the same or different;

or

The second-type mode information of the at least two logical channels includes at least one full mode and a selection mode; wherein, the corresponding logical channels in the same full mode have the same and different transmission status with or without copying. The use copy transmission or non-use copy transmission states of the corresponding logical channels between all modes are the same or different; the use copy transmission or non-use copy transmission states of the logical channels corresponding to the selected mode are respectively indicated.
The terminal device according to claim 69, wherein the terminal device further comprises:

The second processing unit, based on the configuration message, determines the binding information of at least two logical channels, and controls the at least two logical channels to transmit according to the initial replication data transmission mode

The second communication unit receives configuration messages corresponding to the at least two logical channels, where the configuration information is used to indicate the first information; wherein the configuration information includes binding information of the logical channels; When the binding information indicated in the configuration information is true, it characterizes that the logical channel is one of at least two logical channels having the same status of using copy transmission or not using copy transmission.
The terminal device according to claim 70, wherein the second communication unit receives the use copy transmission or non-use copy transmission status of the logical channel indicated by the network side through one of the MAC control element CE, RRC message, and DCI;

Wherein, one of the MAC CE, RRC message, and DCI carries the CG identity of the cell group corresponding to the logical channel.
The terminal device according to claim 70, wherein the configuration message further includes: a group identifier bound to a logical channel; the second communication unit receives the network side through one of MAC CE, RRC message, and DCI The status of the indicated logical channel using copy transmission or not using copy transmission;

One of the MAC CE, RRC message, and DCI carries the group identifier bound to the logical channel.
The terminal device according to claim 69, wherein the second communication unit receives configuration information corresponding to the first logical channel of the at least two logical channels sent by the network side; and the configuration information includes The identifier of the logical channel bound to the first logical channel, and/or the CG identifier to which the logical channel bound to the first logical channel belongs.
The terminal device according to claim 73, wherein the second communication unit obtains the status of using copy transmission or not using copy transmission of the logical channel indicated by the network side through one of the MAC control element CE, RRC message, and DCI;

Wherein, one of the MAC CE, RRC message, and DCI carries at least one of the following: a logical channel and a CG identity of the cell group to which the logical channel belongs.
The terminal device according to any one of claims 69-74, wherein the first information is carried by an RRC reconfiguration message.
The terminal device according to claim 68, wherein the second communication unit acquires the status of the logical channel corresponding to the first mode using copy transmission or not using copy transmission through one of MAC CE, RRC message, and DCI, And/or, the state of using copy transmission or not using copy transmission of the logical channel corresponding to the second mode.
The terminal device according to claim 76, wherein in one of the MAC CE, RRC message, and DCI, different rows indicate the status of using copy transmission or not using copy transmission of the logical channel corresponding to the first mode, And/or, it is used to indicate the status of using copy transmission or not using copy transmission of the logical channel corresponding to the second mode.
The terminal device according to claim 68, wherein the second communication unit obtains the copy transmission or non-use copy transmission status of the logical channel corresponding to the full mode through one of MAC CE, RRC message, and DCI, and Select whether to use copy transmission or not to use copy transmission status of the logical channel corresponding to the mode.
The terminal device according to claim 78, wherein in one of the MAC CE, RRC message, and DCI, at least one bit in the first row indicates the use, copy transmission or non-use of the logical channel corresponding to the full mode The copy transmission status and the at least one logical channel corresponding to the selected mode are indicated by different bits in the second row, respectively corresponding to the copy transmission or non-use copy transmission status.
The terminal device according to claim 65, wherein the DRB indicated in the binding relationship between the DRB and/or SRB has the same data replication transmission activation or data replication transmission deactivation as the SRB and/or DRB status;

Alternatively, the SRB indicated in the binding relationship between the DRB and/or SRB has the same data replication transmission activation or data replication transmission deactivation state as the SRB and/or DRB.
The terminal device according to claim 80, wherein the second communication unit obtains the data copy transmission change instruction indicated by the network side through one of MAC CE, RRC message, and DCI;

One of the MAC CE, RRC message, and DCI carries an identification of DRB or SRB, or carries an identification of DRB or SRB and an indication of whether the logical channel corresponding to DRB or SRB transmits replicated data.
The terminal device according to claim 65, wherein the binding relationship between the carrier and the bearer logical channel is used to determine whether the bearer logical channel is valid by indicating whether the carrier is used for copy transmission or not. Transfer copied data.
The terminal device according to claim 65, wherein the binding relationship between the carriers is used to indicate that at least two carriers having the binding relationship have the same copy transmission or non-use copy transmission status.
The terminal device according to claim 82 or 83, wherein the second communication unit obtains the data copy transmission change instruction indicated by the network side through one of MAC CE, RRC message, and DCI;

One of the MAC CE, RRC message, and DCI carries at least one of the following: the identity of the carrier, the identity of the cell group to which the carrier belongs, and an indication of whether the logical channel corresponding to the carrier transmits replicated data.
A network device, including: a processor and a memory for storing a computer program that can run on the processor,

Wherein, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the steps of the method according to any one of claims 1-21.
A terminal device includes: a processor and a memory for storing a computer program that can run on the processor,

Wherein, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the steps of the method according to any one of claims 22-42.
A chip comprising: a processor, configured to call and run a computer program from a memory, so that the device installed with the chip executes the method according to any one of claims 1-21.
A chip comprising: a processor, configured to call and run a computer program from a memory, so that the device installed with the chip executes the method according to any one of claims 22-42.
A computer-readable storage medium used to store a computer program that enables a computer to execute the steps of the method according to any one of claims 1-42.
A computer program product, comprising computer program instructions that cause a computer to execute the method according to any one of claims 1-42.
A computer program that causes a computer to execute the method according to any one of claims 1-42.