WO2019127289A1

WO2019127289A1 - Data transmission method and terminal device

Info

Publication number: WO2019127289A1
Application number: PCT/CN2017/119600
Authority: WO
Inventors: 石聪
Original assignee: Oppo广东移动通信有限公司
Priority date: 2017-12-28
Filing date: 2017-12-28
Publication date: 2019-07-04
Also published as: CN109691170A

Abstract

Disclosed by the embodiments of the present application are a data transmission method and terminal device, said method comprising: a terminal device receiving instruction information sent by a network device, said instruction information being used for instructing to deactivate the duplication and data transmission functions of a first data radio bearer (DRB); according to the instruction information, the terminal device suspends the transmission of data by means of a first logical channel configured for the first DRB. The method and terminal device of the embodiments of the present application increase the flexibility of data transmission.

Description

Method and terminal device for transmitting data

Technical field

The embodiments of the present application relate to the field of communications, and, more particularly, to a method and a terminal device for transmitting data.

Background technique

In the carrier aggregation scenario, different data radio bearers (DRBs) can be configured to support the copy data transmission function of the Packet Data Convergence Protocol (PDCP), or the PDCP replication data transmission function. . A scheme supporting data duplication transmission copies a PDCP Protocol Data Unit (PDU) into two copies (possibly multiple copies) and transmits them to two Radio Link Control (RLC) entities. (entity), and ensure that the copied PDCP PDU can be transmitted on different physical layer aggregate carriers to improve the reliability of data transmission. In the prior art, the default state of the PDCP copy data transmission function is directly used for data transmission, which is not flexible enough.

Summary of the invention

In view of this, the embodiment of the present application provides a method and terminal device for transmitting data, which is beneficial to improving flexibility of data transmission.

The first aspect provides a method for transmitting data, where the method includes: receiving, by the terminal device, indication information sent by the network device, where the indication information is used to indicate that the replication data transmission function of the first data radio bearer DRB is deactivated; the terminal device According to the indication information, data transmission by the first logical channel configured for the first DRB is suspended.

The terminal device activates the replication data transmission function of a certain DRB according to the indication of the network device, and suspends data transmission on a logical channel configured for the DRB, thereby facilitating the flexibility of data transmission.

Optionally, the solution in the embodiment of the present application may be applied to a scenario of uplink data transmission, and may also be applied to a device-to-device (D2D) communication scenario.

The deduplication of a DRB replication data transmission function means that the DRB is configured with a replication data transmission function, that is, at least two logical channels are configured for the DRB to transmit the replication data. After deactivation, data transmission can be performed using only one logical channel of the DRB.

In a possible implementation, the terminal device suspends data transmission by using the first logical channel configured for the first DRB according to the indication information, including: the terminal device suspending the use of the received information according to the indication information. The uplink grant information is used to transmit data through the first logical channel.

In a possible implementation, before the terminal device receives the indication information sent by the network device, the method further includes: the terminal device by using the first logical channel and a second logical channel configured for the first DRB Transfer the copied data.

In a possible implementation manner, the terminal device performs the transmission of the duplicate data by using the first logical channel and the second logical channel configured for the first DRB, where the terminal device uses the first through the first logical channel. The set of carriers performs transmission of the replicated data and the transmission of the replicated data using the second set of carriers over the second logical channel.

Optionally, the first carrier set and the second carrier set do not overlap.

In a possible implementation manner, the first logical channel is specified by the network device by signaling.

In a possible implementation manner, the first logical channel is a logical channel that uses only the secondary carrier for replica data transmission when the replica data transmission function of the first DRB is in an active state.

In a possible implementation manner, after the terminal device pauses data transmission by using the first logical channel configured for the first DRB according to the indication information, the method further includes: the terminal device passes the first The second logical channel configured by the DRB performs data transmission.

Optionally, after deactivating the duplicate data transmission function of the first DRB, the terminal device may use any carrier set or a partial carrier set of all carrier sets to transmit data through the second logical channel.

In a possible implementation manner, the second logical channel is a logical channel that uses a primary carrier for replica data transmission when the replica data transmission function of the first DRB is in an active state.

In a possible implementation manner, the terminal device receives the indication information sent by the network device, where the terminal device receives the network device and sends the device through a Media Access Control (MAC) control element (Control Element, CE). The indication information.

In a second aspect, a terminal device is provided for performing the method of any of the above first aspect or any of the possible implementations of the first aspect. In particular, the terminal device comprises means for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.

In a third aspect, a terminal device is provided, the terminal device comprising: a memory, a processor, an input interface, and an output interface. The memory, the processor, the input interface, and the output interface are connected by a bus system. The memory is for storing instructions for executing the memory stored instructions for performing the method of any of the first aspect or the first aspect of the first aspect.

In a fourth aspect, a computer storage medium is provided for storing computer software instructions for performing the method of any of the above first aspect or any of the possible implementations of the first aspect, comprising program.

In a fifth aspect, a computer program product comprising instructions, when executed on a computer, causes the computer to perform the method of any of the first aspect or the optional implementation of the first aspect.

These and other aspects of the present application will be more readily apparent from the following description of the embodiments.

DRAWINGS

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.

FIG. 2 shows a protocol architecture diagram of duplicate data transmission in a carrier aggregation scenario.

FIG. 3 shows a schematic block diagram of a method of transmitting data in an embodiment of the present application.

FIG. 4 shows a schematic block diagram of a terminal device of an embodiment of the present application.

FIG. 5 is another schematic block diagram of a terminal device according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments.

It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, and a wideband code. 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 (Time Division Duplex, TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, New Radio (NR) or future 5G System, etc.

In particular, the technical solutions of the embodiments of the present application can be applied to various communication systems based on non-orthogonal multiple access technologies, such as a sparse code multiple access (SCMA) system, and a low-density signature (Low). Density Signature (LDS) system, etc., of course, the SCMA system and the LDS system may also be referred to as other names in the communication field; further, the technical solution of the embodiment of the present application can be applied to multi-carrier using non-orthogonal multiple access technology. Transmission system, for example, Orthogonal Frequency Division Multiplexing (OFDM), Filter Bank Multi-Carrier (FBMC), General Frequency Division Multiplexing (Generalized Frequency Division Multiplexing (OFDM)) Frequency Division Multiplexing (GFDM), Filtered Orthogonal Frequency Division Multiplexing (Filtered-OFDM, F-OFDM) system, and the like.

The terminal device in the embodiment of the present application may refer to a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless device. Communication device, user agent or user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication. Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks, or in the future evolution of the Public Land Mobile Network (PLMN) The terminal device and the like are not limited in the embodiment of the present application.

The network device in the embodiment of the present application may be a device for communicating with a terminal device, where the network device may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB, NB) in a WCDMA system. And may be an evolved base station (eNB or eNodeB) in the LTE system, or may be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device may be The embodiments of the present application are not limited to the relay station, the access point, the in-vehicle device, the wearable device, and the network device in the future 5G network or the network device in the future evolved PLMN network.

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application. The communication system in FIG. 1 may include a terminal device 10 and a network device 20. The network device 20 is configured to provide communication services for the terminal device 10 and access the core network. The terminal device 10 accesses the network by searching for synchronization signals, broadcast signals, and the like transmitted by the network device 20, thereby performing communication with the network. The arrows shown in FIG. 1 may represent uplink/downlink transmissions by a cellular link between the terminal device 10 and the network device 20.

The uplink PDCP data replication function can be configured based on the DRB, that is, different DRBs can be configured to support PDCP replication data transmission, or not to configure PDCP replication data transmission. For carrier aggregation (CA), the solution for supporting replicated data transmission is to use PDCP's duplicate data transmission function to transmit duplicated PDCP PDUs to two RLC entities (two different logical channels), and finally guarantee The replicated PDCP PDUs can be transmitted on different physical layer aggregated carriers to achieve frequency diversity gain to improve data transmission reliability. The specific protocol structure is shown in Figure 2.

For ease of understanding, how to schedule the replicated data on different physical carriers will be described in detail below with reference to FIG. As shown in FIG. 2, the PDCP layer has a split bearer replication function, and data replication of a PDCP Service Data Unit (SDU) is encapsulated into PDCP PDU1 and PDCP PDU2, and PDCP PDU1 and PDCP PDU2 have the same content, that is, bearer. The data payload and the header header are the same. PDCP PDU1 and PDCP PDU2 are respectively mapped to different RLC entities, and the RLC entity puts PDCP PDU1 and PDCP PDU2 on different logical channels (logical channel 1 and logical channel 2), and for the MAC, which logical channels are known After transmitting the duplicated data of the same PDCP PDU, the replicated data is transmitted on different carriers, for example, the replicated data carried in the logical channel 1 is transmitted on the physical carrier 1, and the replicated data carried in the logical channel 2 is physically Transmission on carrier 2.

Although the PDCP layer copy data transmission can effectively improve the reliability of data transmission by using the diversity gain, how to flexibly use the PDCP copy data transmission function is a problem to be solved.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

FIG. 3 shows a schematic block diagram of a method 100 of transmitting data in an embodiment of the present application. As shown in FIG. 3, the method 100 includes some or all of the following:

S110. The terminal device receives the indication information sent by the network device, where the indication information is used to indicate that the replication data transmission function of the first data radio bearer DRB is deactivated.

S120. The terminal device suspends data transmission by using the first logical channel configured for the first DRB according to the indication information.

Specifically, the network device can support the replication data transmission function for a certain DRB configuration, that is, the network device can configure one PDCP entity to associate two RLC entities (two logical channels) for a certain DRB, and the network device can also determine the network device. Whether a DRB needs to activate the duplicate data transfer function. For example, the network device can determine whether the data transmission has reliability requirements according to the current service. When the network device determines to deactivate the replication data transmission function of a certain DRB, the network device may send an indication indication to the terminal device, for example, may indicate to the terminal device by using the MAC CE. After receiving the indication information sent by the network device, the terminal device may suspend a logical channel according to the indication information, that is, suspend data transmission through a logical channel of the DRB.

Therefore, the method for transmitting data in the embodiment of the present application is advantageous for improving the flexibility of data transmission.

It should be understood that the network device may configure the duplicate data transmission function as shown in FIG. 2 for the first DRB in the embodiment of the present application, that is, configure the first logical channel and the second logical channel for the first DRB, where the network device Before the terminal device sends the indication information to deactivate the duplicate data transmission function of the first DRB, the network device may perform the transmission of the duplicate data through the first logical channel and the second logical channel. For example, PDCP PDU1 may be transmitted in logical channel 1 in FIG. 2, and PDCP PDU1 may be transmitted in logical channel 2.

Further, the terminal device performs the transmission of the duplicate data by using the first logical channel and the second logical channel configured for the first DRB, where the terminal device uses the first carrier set to perform data replication by using the first carrier set. Transmitting and transmitting the replicated data using the second set of carriers over the second logical channel.

Specifically, the terminal device may receive configuration information of the network device, where the configuration information may instruct the terminal device to use the first carrier set and the second carrier set to perform data transmission, and it should be understood that when the first DRB activates the duplicate data transmission function, The first logical channel of the first DRB may be mapped to the first set of carriers, and the second logical channel of the first DRB may be mapped to the second set of carriers, that is, after receiving the uplink grant information, the terminal device may The transmission of the replica data is performed by using the first carrier set by the first logical channel, and the transmission of the replica data may be performed by using the second carrier set by the second logical channel. The carrier set may include at least one carrier.

Optionally, the carrier included in the first carrier set and the carrier included in the second carrier set may not overlap.

Optionally, in the embodiment of the present application, the terminal device pauses data transmission by using the first logical channel configured for the first DRB according to the indication information, including: the terminal device suspends use and receive according to the indication information. The uplink authorization information that arrives is transmitted through the first logical channel.

That is, after the terminal device receives the indication information, the terminal device no longer performs data transmission through the first logical channel according to the received uplink authorization information.

Optionally, in the embodiment of the present application, the first logical channel that is suspended by the terminal device may be specified by the network device, for example, the network device may send, to the terminal device, a replication data transmission function indicating that the first DRB is deactivated. The first logical channel is also indicated. The network device may also not specify the first logical channel to the terminal device. After receiving the indication information, the terminal device may temporarily suspend the use of only the secondary carrier for replication when the copy data transmission function of the first DRB is in an active state. Logical channel for data transmission. For example, in the above example, the first logical channel uses the first carrier set when the replica data transmission function of the first DRB is in an active state, and the first carrier set may be considered to include only the secondary carrier. It should be understood that the terminal device may also temporarily suspend the logical channel that uses the carrier set of the primary carrier to perform the data transmission of the replica when the data transmission function of the first DRB is in the active state, which is not limited in this embodiment.

Optionally, in the embodiment of the present application, after the terminal device pauses data transmission by using the first logical channel configured for the first DRB according to the indication information, the method further includes: the terminal device passes the The second logical channel of the first DRB configuration performs data transmission.

As mentioned above, the network device configures the first logical channel and the second logical channel for the first DRB to perform the duplicate data transmission. After the network device indicates to the terminal device to deactivate the duplicate data transmission function of the first DRB, the terminal device may pause. Data is transmitted through the first logical channel, and data transmission is continued through the second logical channel. Further, after the terminal device deactivates the duplicate data transmission function of the first DRB, all carriers configured for the terminal device can be used to transmit data, that is, the terminal device can continue to use the second logical channel as the All carriers or part of carriers configured by the terminal device transmit data.

Optionally, in the embodiment of the present application, the second logical channel is a logical channel that uses the primary carrier for copy data transmission when the duplicate data transmission function of the first DRB is in an active state. For example, in the above example, the second logical channel uses the second carrier set when the replica data transmission function of the first DRB is in the active state, and the second carrier set may be considered to include the primary carrier, and the second carrier set may further include at least one Secondary carrier. Optionally, the second logical channel may also be specified by the network device by signaling. For example, the network device may specify to suspend the first logical channel, and after receiving the deactivation command, the terminal device may directly transmit data through the second logical channel. Or the network device directly specifies to transmit through the second logical channel, and after receiving the deactivation command, the terminal device directly suspends the first logical channel and performs data transmission through the second logical channel.

Optionally, in the embodiment of the present application, the terminal device receives the indication information sent by the network device, where the terminal device receives the indication information that is sent by the network device by using the MAC CE. It should be understood that the network device may also indicate to the terminal device by using other signaling, for example, Downlink Control Information (DCI), and the embodiment of the present application is not limited thereto.

It should be understood that the interaction between the network device and the terminal device described by the network device and related features, functions, and the like correspond to related features and functions of the terminal device. The related content has been described in detail in the above method 100. For brevity, no further details are provided herein.

It should also be understood that, in various embodiments of the present application, the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be implemented in the present application. The implementation of the examples constitutes any limitation.

The method for transmitting data according to an embodiment of the present application is described in detail above. Hereinafter, an apparatus for transmitting data according to an embodiment of the present application will be described with reference to FIG. 4 and FIG. 5, and the technical features described in the method embodiments are applicable to the following apparatus implementation. example.

FIG. 4 shows a schematic block diagram of a terminal device 200 of an embodiment of the present application. As shown in FIG. 4, the terminal device 200 includes:

The receiving unit 210 is configured to receive indication information that is sent by the network device, where the indication information is used to indicate that the replication data transmission function of the first data radio bearer DRB is deactivated;

The processing unit 220 is configured to suspend transmission of data by using the first logical channel configured for the first DRB according to the indication information.

Therefore, the terminal device of the embodiment of the present application is advantageous for improving flexibility of data transmission.

Optionally, in the embodiment of the present application, the processing unit is specifically configured to: suspend transmission of data by using the received uplink authorization information by using the first logical channel according to the indication information.

Optionally, in the embodiment of the present application, the terminal device further includes: a first sending unit, configured to pass the first logical channel and the first before the receiving unit receives the indication information sent by the network device The second logical channel configured by the DRB performs transmission of the replicated data.

Optionally, in the embodiment of the present application, the sending unit is specifically configured to: use the first carrier set to perform transmission of the duplicate data by using the first logical channel, and use the second carrier set to perform data replication by using the second carrier set. transmission.

Optionally, in the embodiment of the present application, the first carrier set and the second carrier set do not overlap.

Optionally, in the embodiment of the present application, the first logical channel is specified by the network device by using signaling.

Optionally, in the embodiment of the present application, the first logical channel is a logical channel that uses only the secondary carrier for copy data transmission when the copy data transmission function of the first DRB is in an active state.

Optionally, in the embodiment of the present application, the terminal device further includes: a second sending unit, configured to: at the processing unit, suspend data transmission by using the first logical channel configured for the first DRB according to the indication information Thereafter, data is transmitted through the second logical channel configured for the first DRB.

Optionally, in the embodiment of the present application, the second logical channel is a logical channel that uses the primary carrier for copy data transmission when the duplicate data transmission function of the first DRB is in an active state.

Optionally, in the embodiment of the present application, the receiving unit is specifically configured to: receive the indication information that is sent by the network device by using a media access control MAC control element CE.

It should be understood that the terminal device 200 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the terminal device 200 respectively implement the terminal in the method of FIG. The corresponding process of the device is not described here for brevity.

As shown in FIG. 5, the embodiment of the present application further provides a terminal device 300, which may be the terminal device 200 in FIG. 4, which can be used to execute the content of the terminal device corresponding to the method 100 in FIG. . The terminal device 300 includes an input interface 310, an output interface 320, a processor 330, and a memory 340. The input interface 310, the output interface 320, the processor 330, and the memory 340 can be connected by a bus system. The memory 340 is for storing programs, instructions or codes. The processor 330 is configured to execute a program, an instruction or a code in the memory 340 to control the input interface 310 to receive a signal, control the output interface 320 to transmit a signal, and complete the operations in the foregoing method embodiments.

It should be understood that, in the embodiment of the present application, the processor 330 may be a central processing unit (CPU), and the processor 330 may also be other general-purpose processors, digital signal processors, application specific integrated circuits, and ready-made Program gate arrays or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and more. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory 340 can include read only memory and random access memory and provides instructions and data to the processor 330. A portion of the memory 340 may also include a non-volatile random access memory. For example, the memory 340 can also store information of the device type.

In the implementation process, each content of the above method may be completed by an integrated logic circuit of hardware in the processor 330 or an instruction in the form of software. The content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 340, and the processor 330 reads the information in the memory 340 and completes the contents of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

In a specific implementation manner, the receiving unit in the terminal device 200 can be implemented by the input interface 310 in FIG. 5, and the first sending unit and the second sending unit of the terminal device 300 can be implemented by the output interface 320 in FIG. The processing unit of terminal device 300 can be implemented by processor 330 in FIG.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

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, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the 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 physically separately, or two or more units may be integrated into one unit.

This functionality, if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application. It should be covered by the scope of protection of this application. Therefore, the scope of protection of the present application should be determined by the scope of protection of the claims.

Claims

A method for transmitting data, comprising:

The terminal device receives the indication information sent by the network device, where the indication information is used to indicate that the replication data transmission function of the first data radio bearer DRB is deactivated;

The terminal device suspends data transmission by using the first logical channel configured for the first DRB according to the indication information.
The method according to claim 1, wherein the terminal device suspends data transmission by using the first logical channel configured for the first DRB according to the indication information, including:

The terminal device pauses to transmit data through the first logical channel by using the received uplink grant information according to the indication information.
The method according to claim 1 or 2, wherein before the receiving, by the terminal device, the indication information sent by the network device, the method further comprises:

The terminal device performs transmission of the duplicate data by using the first logical channel and a second logical channel configured for the first DRB.
The method according to claim 3, wherein the terminal device performs the transmission of the duplicate data by using the first logical channel and the second logical channel configured for the first DRB, including:

The terminal device performs transmission of the duplicate data by using the first carrier set by the first logical channel and transmission of the replicated data by using the second carrier set by the second logical channel.
The method according to claim 4, wherein the first set of carriers and the second set of carriers do not overlap.
The method according to any one of claims 1 to 5, wherein the first logical channel is specified by the network device by signaling.
The method according to any one of claims 1 to 6, wherein the first logical channel is a copy data transmission using only a secondary carrier when the copy data transmission function of the first DRB is in an active state. Logical channel.
The method according to any one of claims 1 to 7, wherein after the terminal device pauses data transmission by using the first logical channel configured for the first DRB according to the indication information, The method further includes:

The terminal device transmits data through a second logical channel configured for the first DRB.
The method according to claim 8, wherein the second logical channel is a logical channel for performing duplicate data transmission using a primary carrier when the duplicate data transmission function of the first DRB is in an active state.
The method according to any one of claims 1 to 9, wherein the receiving, by the terminal device, the indication information sent by the network device comprises:

The terminal device receives the indication information that is sent by the network device by using a media access control MAC control element CE.
A terminal device, the terminal device includes:

a receiving unit, configured to receive indication information sent by the network device, where the indication information is used to indicate that the replication data transmission function of the first data radio bearer DRB is deactivated;

And a processing unit, configured to suspend transmission of data by using the first logical channel configured for the first DRB according to the indication information.
The terminal device according to claim 11, wherein the processing unit is specifically configured to:

And transmitting, according to the indication information, data transmission through the first logical channel by using the received uplink authorization information.
The terminal device according to claim 11 or 12, wherein the terminal device further comprises:

a first sending unit, configured to: before the receiving unit receives the indication information sent by the network device, perform transmission of duplicate data by using the first logical channel and a second logical channel configured for the first DRB .
The terminal device according to claim 13, wherein the first sending unit is specifically configured to:

The transmission of the replicated data is performed by using the first set of carriers by the first logical channel and the transmission of the replicated data by using the second set of carriers by the second logical channel.
The terminal device according to claim 14, wherein the first carrier set and the second carrier set do not overlap.
The terminal device according to any one of claims 11 to 15, wherein the first logical channel is specified by the network device by signaling.
The terminal device according to any one of claims 11 to 15, wherein the first logical channel is to use only a secondary carrier for copy data transmission when the copy data transmission function of the first DRB is in an active state. Logical channel.
The terminal device according to any one of claims 11 to 17, wherein the terminal device further comprises:

a second sending unit, configured to, after the processing unit pauses data transmission by using the first logical channel configured for the first DRB, according to the indication information, by using a second logic configured for the first DRB The channel performs data transmission.
The terminal device according to claim 18, wherein the second logical channel is a logical channel for performing duplicate data transmission using a primary carrier when the copy data transmission function of the first DRB is in an active state.
The terminal device according to any one of claims 11 to 19, wherein the receiving unit is specifically configured to:

Receiving, by the network device, the indication information sent by the MAC control element CE through the medium access control.