WO2021190233A1

WO2021190233A1 - Data transmission method and device

Info

Publication number: WO2021190233A1
Application number: PCT/CN2021/077847
Authority: WO
Inventors: 韩立锋
Original assignee: 展讯通信（上海）有限公司
Priority date: 2020-03-25
Filing date: 2021-02-25
Publication date: 2021-09-30
Also published as: CN113452487B; CN113452487A

Abstract

Embodiments of the present application provide a data transmission method and device. The method comprises: receiving target data in at least one radio barrier (RB), the target data in the at least one RB being data of a target service. By using the embodiments of the present application, the reliability of data transmission can be improved.

Description

Data transmission method and device

Technical field

This application relates to the field of communication technology, and in particular to a data transmission method and device.

Background technique

In a communication system, data transmission is required between network equipment and terminal equipment to achieve the purpose of communication. However, when the reliability of data transmission between network equipment and terminal equipment is not high, it will cause the transmission of data to be delayed Or loss, which affects the quality of communication, so the reliability of data transmission is an urgent problem to be solved.

Summary of the invention

The embodiments of the present application provide a data transmission method and device, which are used to improve the reliability of terminal equipment in terms of data transmission.

In the first aspect, an embodiment of the present application provides a data transmission method, which is applied to a terminal device, and the method includes:

Receive target data in at least one RB, where the target data in the at least one RB is data of a target service.

In a second aspect, an embodiment of the present application provides a data transmission device, which is applied to a terminal device, and the device includes:

The communication unit is configured to receive target data in at least one RB, where the target data in the at least one RB is data of a target service.

In a third aspect, embodiments of the present application provide a terminal device, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be processed by the above The above program includes instructions for executing the steps in the method described in the first aspect of the embodiments of the present application.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the above-mentioned computer-readable storage medium stores a computer program for electronic data exchange, wherein the above-mentioned computer program enables a computer to execute Part or all of the steps described in the method described in one aspect.

In a fifth aspect, the embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute as implemented in this application. Examples include part or all of the steps described in the method described in the first aspect. The computer program product may be a software installation package.

It can be seen that, in the embodiment of the present application, the target data in at least one RB is received. Since the content of the target data transmitted by the network device through the at least one RB is the same, the terminal device receives the target data in the at least one RB, which is beneficial to improve Reliability of data transmission.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative work, other drawings can be obtained from these drawings.

FIG. 1 is a schematic diagram of a data transmission mode provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of another data transmission mode provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of another data transmission mode provided by an embodiment of the present application;

FIG. 4 is a schematic flowchart of a data transmission method provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of a protocol stack provided by an application embodiment;

Fig. 6 is a schematic diagram of another protocol stack provided by an application embodiment;

FIG. 7 is a schematic structural diagram of a terminal device provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a data transmission device provided by an embodiment of the present application.

Detailed ways

The terms used in the implementation mode part of this application are only used to explain specific embodiments of this application, and are not intended to limit this application. The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the drawings are used to distinguish different objects, not to describe a specific order . In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusions.

Exemplarily, please refer to Figures 1 to 3, Figures 1 to 3 are schematic diagrams of data transmission modes provided by embodiments of the present application, respectively, and the data transmission modes shown in Figures 1 to 3 are all network devices through radio bearers ( Radio Bearer (RB) transmits data to terminal equipment. It should be understood that the shapes and quantities of the network devices and terminal devices shown in FIG. 1 to FIG. 3 are only for example, and do not constitute a limitation to the embodiments of the present application.

The data transmission mode in the embodiments of this application can be applied to different network architectures, including but not limited to relay network architecture, dual link network architecture, and vehicle-to-everything (V2X) network architecture ,and many more.

The data transmission mode in the embodiment of this application can be applied to the global system for mobile communication (CSM), code division multiple access (CDMA) system, and wideband code division multiple access (wideband code division multiple). access, WCDMA) system, worldwide interoperability for microwave access (WiMAX) system, long term evolution (LTE) system, 5G communication system (such as new radio (NR)), various A communication system that integrates communication technologies (for example, a communication system that integrates LTE technology and NR technology), or a subsequent evolved communication system.

The terminal device in the embodiment of this application is a device with wireless communication function, which can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); Deployed in the air (e.g. airplanes, balloons, satellites, etc.). The terminal device can be a mobile phone, a tablet computer (pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, and an industrial control (industrial control) terminal device. Wireless terminal in control), wireless terminal in self-driving (self-driving), wireless terminal in remote medical (remote medical), wireless terminal in smart grid (smart grid), wireless terminal in smart home (smart home) Terminal and so on. The terminal device may also be a handheld device with a wireless communication function, a vehicle-mounted device, a wearable device, a computer device, or other processing device connected to a wireless modem.

The network device in the embodiment of the present application is a device deployed on a wireless access network to provide wireless communication functions. For example, the equipment that provides the base station function in the 2G network includes a base transceiver station (English: base transceiver station, referred to as BTS), the equipment that provides the base station function in the 3G network includes the NodeB (NodeB), and the equipment that provides the base station function in the 4G network Including evolved NodeB (eNB), in wireless local area networks (WLAN), the equipment that provides base station functions is access point (AP), 5G New Radio (New Radio) , Referred to as NR) in the gNB that provides base station functions, and the evolving Node B (ng-eNB), where the gNB and the terminal use NR technology for communication, and the ng-eNB and the terminal use E-UTRA (Evolved Universal Terrestrial Radio Access) technology for communication, both gNB and ng-eNB can be connected to the 5G core network. The base station in the embodiment of the present application also includes equipment that provides base station functions in a new communication system in the future.

In Figure 1, an RB connection is established between a network device and a terminal device to realize data transmission. In FIG. 1, the radio bearer directly established by the network device 2 and the terminal device is a data radio bearer (DRB), which refers to a data radio bearer in a unicast manner. The radio bearer directly established by the network device 3 and the terminal device is a point-to-multipoint radio bearer (MBS Point to Multipoint Radio Bearer, MRB) that carries multicast or broadcast service (Multicast/Broadcast Service, MBS) services.

In Figure 2, an RB connection is established between the network device and the terminal device, so as to realize data transmission. In FIG. 2, the radio bearers established by the network device 2 and the network device 3 with the terminal device respectively are MRB.

In Figure 3, an RB connection is established between the network device and the terminal device, so as to realize data transmission. In FIG. 3, the radio bearers established by the network device 2 and the terminal device are DRB and MRB.

Currently, communication networks allow network devices to use at least one data transmission mode among unicast, multicast, and broadcast for data transmission. Unicast means that a network device can only transmit data services to one terminal device, while multicast or broadcast means that a network device can simultaneously transmit data services to multiple terminal devices. However, when unicast is used for data transmission, the transmission function of the wireless air interface includes the Hybrid Automatic Repeat reQuest (HARQ) function, which incurs additional overhead. When multicast or broadcast is used for data transmission, wireless The transmission function of the air interface does not include the HARQ function, and cannot meet the high reliability requirements of new services (for example, the Internet of Vehicles, the Internet of Things, etc.).

Please refer to FIG. 4. FIG. 4 is a schematic flowchart of a data transmission method provided by an embodiment of the application, including the following steps:

Step 401: Receive target data in at least one RB, where the target data in the at least one RB is data of a target service.

Among them, the target business includes one or more businesses.

Among them, the content of the target data transmitted by the network device in each RB may be the same.

Among them, the target data includes one or more data packets.

For example, if the target service includes 3 services (service 1, service 2, and service 3), there are 3 RBs (RB1, RB2, and RB3), and the data to be transmitted corresponding to service 1 includes 2 data packets (# 11 and #12), the data that needs to be transmitted corresponding to business 2 includes 2 data packets (#21 and #22), and the data that needs to be transmitted corresponding to business 3 includes 3 data packets (#31, #32, and #33) , The target data are data packets #11, #12, #21, #22, #31, #32, and #33, and the target data in RB1, RB2, and RB3 are #11, #12, #21, #22 , #31, #32 and #33.

The type of each RB in the at least one RB may be the same or different, which is not limited here.

Among them, the types of RBs include DRB and MRB, for example.

Among them, each cell includes at least one RB. If there is only one RB in the cell, only one RB can be DRB or MRB; if the cell includes multiple RBs, it can include one DRB and multiple MRBs, It can also include multiple MRBs.

Among them, the target data in each RB may be all the data of the target business, or part of the data of the target business.

For example, there are 5 data packets of the target service that the network device needs to transmit (#1, #2, #3, #4, and #5), and the data volume of each data packet is 100M, and the data packets that can be transmitted in the RB The maximum data volume is 400M, then 5 data packets are transmitted in two times, that is, data packets #1, #2, #3 and #4 are first transmitted, and then data packet #5 is transmitted, and RB first transfers the target data# 1, #2, #3, and #4 are transmitted to the terminal device, and then the target data #5 is transmitted to the terminal device.

For example, there are 3 data packets of the target service that the network device needs to transmit (#1, #2, and #3), the data volume of each data packet is 100M, and the maximum data volume that can be transmitted in the RB is 400M, then The RB can transmit 300M target data to the terminal device at a time.

It can be seen that in the embodiment of the present application, the target data in at least one RB is received. Since the target data transmitted by the network device through the at least one RB is the same, the terminal device receives the target data in the at least one RB, which is beneficial to improve data transmission. Reliability.

In an implementation manner of the present application, the at least one RB is a different type of RB in the same cell;

Or, the at least one RB is an RB of the same type in different cells;

Or, the at least one RB is a different type of RB in different cells.

Among them, one RB may exist in one cell, or there may be multiple RBs.

Wherein, when the data transmission method of the present application is applied to the data transmission mode shown in FIG. 1, the RB used to transmit the target data in the serving cell is the DRB, and the RB used to transmit the target data in the neighboring cell is the MRB.

Wherein, when the data transmission method of the present application is applied to the data transmission mode shown in FIG. 2, the RB used to transmit the target data in the serving cell is the MRB, and the RB used to transmit the target data in the neighboring cell is the MRB.

Wherein, when the data transmission method of the present application is applied to the data transmission mode shown in FIG. 3, the RB used to transmit the target data in the serving cell is the DRB, and the RB used to transmit the target data in the neighboring cell is the MRB.

Among them, there can be one or more neighboring cells.

It can be seen that in the embodiment of the present application, at least one RB may be at least one of different types of RBs in the same cell, at least one of the same type of RBs in different cells and different types of RBs in different cells, and at least one RB may be Applied to different communication scenarios, it is helpful to improve the flexibility of terminal equipment.

In an implementation manner of the present application, the at least one RB includes at least one of a primary RB and a secondary RB.

Wherein, the main RB may be one of at least one RB.

Among them, there may be only one auxiliary RB or multiple auxiliary RBs.

Among them, the main RB can be a DRB or an MRB.

Among them, in different data transmission modes, the main RB may be the same or different.

Wherein, the main RB may be configured by the network device, or the default of the terminal device, may also be determined by the terminal device based on the priority of the RB, or determined by the terminal device based on the communication quality of the RB.

It can be seen that in this embodiment of the application, dividing at least one RB into a primary RB and a secondary RB is beneficial for the terminal device to deactivate and activate the secondary RB based on the reliability requirements of the target data, which is beneficial to reduce the terminal The complexity of the device in receiving the target data.

In an implementation manner of the present application, the main RB is configured by the network device; or, the main RB is the default of the terminal device, and the main RB is the one used to transmit the target data in the serving cell RB, the secondary RB is an RB used for transmitting the target data in a neighboring cell.

Among them, when the data transmission method of the present application is applied to the data transmission mode shown in FIG. 1, the RB used to transmit target data in the serving cell is DRB, and the RB used to transmit target data in neighboring cells is MRB. The RB is configured by the network equipment. It can be DRB as the primary RB and MRB as the secondary RB. It can also be the MRB as the primary RB and DRB as the secondary RB; if the primary RB is defaulted by the terminal device, the DRB is the primary RB and the MRB is Assist RB.

Among them, when the data transmission method of the present application is applied to the data transmission mode shown in FIG. 2, the RB used to transmit target data in the serving cell is MRB, and the RB used to transmit target data in neighboring cells is MRB. The RB is configured by the network equipment. It can be the MRB in the serving cell as the primary RB and the MRB in the neighboring cell as the secondary RB. It can also be the MRB in the neighboring cell as the primary RB and the MRB in the serving cell as the secondary RB; The RB is defaulted by the terminal equipment, and the MRB in the serving cell is the primary RB, and the MRB in the neighboring cell is the secondary RB.

Among them, when the data transmission method of this application is applied to the data transmission mode shown in FIG. 3, the RBs used to transmit target data in the serving cell are DRB and MRB. If the main RB is configured by a network device, the DRB may be The main RB and the MRB are auxiliary RBs, or the MRB is the main RB and the DRB is the auxiliary RB.

Optionally, the terminal device may default to the DRB as the primary RB and the MRB as the secondary RB, or it may default to the MRB as the primary RB and the DRB as the secondary RB, or determine the primary RB in at least one RB based on the priority of the RB in the serving cell, The main RB may also be determined in at least one RB based on the communication quality of the RB.

For example, if there are 3 RBs (#RB1, #RB2, and #RB3), the priority of #RB1 is 1, the priority of #RB2 is 2, and the priority of #RB3 is 3, the terminal device determines #RB1 Master RB.

Wherein, the communication quality of the RB may be determined based on at least one of reference signal received power, received signal strength indicator, signal-to-interference and noise ratio, and data transmission rate.

Among them, the communication quality of the RB may be directly measured by the terminal device, or may be measured by the terminal device through an external server.

It can be seen that in the embodiment of this application, the main RB can be configured by the network device or the default of the terminal device, which ensures the flexibility of determining the main RB and helps reduce the computational complexity of the terminal device in determining the main RB. Spend.

In an implementation manner of the present application, before the receiving target data in at least one RB, the method includes:

Receive a first message sent by a network device, the first message carries reception configuration information, the first message includes a dedicated radio resource control RRC message, a system message, a medium access control MAC control element CE, and downlink control information DCI At least one of.

Among them, the system message includes but is not limited to at least one of the master information block (MIB), the system information block (SIB), and the minimum system information (MSI), the minimum reserved At least one of system information (remaining minimum system information, RMSI) or other system information.

Among them, dedicated RRC messages include but are not limited to RRC release (Release) message, RRC connection reconfiguration (connection reconfiguration) message, RRC connection reestablishment (connection reestablishment) message, RRC connection setup (connection setup) message, and RRC connection recovery (connection reconfiguration) message. resume) message or any of other RRC messages.

It can be seen that in this embodiment of the application, the network device can send the first message to the terminal device through at least one of a radio resource control RRC message, a system message, a medium access control MAC control element CE, and downlink control information DCI. , Which shows that the ways of sending the first message are diversified, which is beneficial to improve the reliability of the network device in sending the first message.

In an implementation manner of the present application, the receiving configuration information includes at least one of the following:

An indication of whether the first receiving mode is supported, where the first receiving mode is used by the terminal device to receive data in the primary RB and the secondary RB;

A service identifier supporting the first receiving mode;

An RB identifier supporting the first receiving mode;

Main RB identification;

The mode of the first receiving manner;

Activate the first receiving condition of the first receiving mode;

Deactivate the second receiving condition of the first receiving mode;

A list of cells supporting the first receiving mode;

The state of the terminal device.

Optionally, the indication of whether the first receiving mode is supported occupies 1 bit, when the value of the 1 bit is 1, it indicates that the first receiving mode is supported, and when the value of the 1 bit is 0, it indicates that the first receiving mode is not supported; Or, when the value of the 1 bit is 0, it indicates that the first reception mode is supported, and when the value of the 1 bit is 1, it indicates that the first reception mode is not supported. Of course, supporting the first receiving mode can also occupy multiple bits. The multiple-bit indication is similar to the one-bit indication, and will not be described here.

Optionally, the number of bits occupied by the service identifier supporting the first receiving mode may be fixed, or may be determined according to the number of services supporting the first receiving mode.

For example, the number of bits occupied by the service identifier supporting the first reception mode is fixed, and is 4 bits. When the value of the 4 bits is 0001, it indicates that the first service supports the first reception mode. The value of the 4 bits is When it is 0010, it indicates that the second service supports the first receiving mode, and when the value of the 4 bits is 0011, it indicates that the third service supports the first receiving mode, and so on.

For example, if there are 4 services that support the first reception mode, the number of bits occupied by the service identifier supporting the first reception mode is 2, and the value of these 2 bits is 00 indicating that the first service supports the first reception mode. When the value of the 2 bits is 01, it indicates that the second service supports the first receiving mode. When the value of the 2 bits is 10, it indicates that the third service supports the first receiving mode. When the value of the 2 bits is 11, it indicates the fourth service. The business supports the first receiving method.

Optionally, the number of bits occupied by the RB identifier supporting the first receiving mode may be fixed, or may be determined according to the number of RBs supporting the first receiving mode.

Optionally, the number of bits occupied by the identifier of the primary RB may be the same as or different from the number of bits occupied by the RB identifier supporting the first receiving mode.

For example, if the number of bits occupied by the RB identifier supporting the first receiving mode is fixed, it is 3 bits, and there are 3 RBs supporting the first receiving mode (#RB1, #RB2, and #RB3). When the value of the bit is 001, it indicates #RB1, when the value of the three bits is 010, it indicates #RB2, when the value of the three bits is 011, it indicates #RB3, and the main RB is any of #RB1, #RB2 and #RB3 In one case, the number of bits occupied by the main RB identifier is 2, which can indicate #RB1, #RB2, and #RB3.

Wherein, the mode of the first receiving manner includes at least one of FIG. 1 to FIG. 3.

Optionally, the mode of the first receiving mode occupies 2 bits. When the value of the 2 bits is 00, the mode of the first receiving mode is shown in Fig. 1, and when the value of the 2 bits is 01, the mode of the first receiving mode is indicated. When the value of the 2 bits is 10, the mode of the first receiving mode is shown in Fig. 3; or, when the value of the 2 bits is 01, the mode of the first receiving mode is shown in Fig. 1. When the value of each bit is 10, it indicates that the mode of the first receiving mode is FIG. 2, and when the value of the two bits is 11, it indicates that the mode of the first receiving mode is FIG. 3;

Or, when the value of the two bits is 00, it indicates that the mode of the first receiving mode is Figure 1, and when the value of the two bits is 01, it indicates that the mode of the first receiving mode is Figure 3, and the value of the two bits is 10. When the value of the 2 bits indicates the mode of the first receiving mode is Figure 2; or, when the value of the two bits is 01, the mode of the first receiving mode is shown in Figure 1, and when the value of the 2 bits is 10, the mode of the first receiving mode is indicated. As shown in Fig. 3, when the value of the 2 bits is 11, it indicates that the mode of the first receiving mode is as shown in Fig. 2;

Or, when the value of the 2 bits is 00, it indicates that the mode of the first receiving mode is Fig. 3, and when the value of the 2 bits is 01, it indicates that the mode of the first reception mode is Fig. 2, and the value of the 2 bits is 10. When the value of the 2 bits indicates the mode of the first receiving mode is Figure 1; or, when the value of the 2 bits is 01, the mode of the first receiving mode is shown in Figure 3, and when the value of the 2 bits is 10, the mode of the first receiving mode is indicated. As shown in Figure 2, when the value of the 2 bits is 11, it indicates that the mode of the first receiving mode is as shown in Figure 1;

Or, when the value of the two bits is 00, it indicates that the mode of the first receiving mode is Figure 3, and when the value of the two bits is 01, it indicates that the mode of the first receiving mode is Figure 1, and the value of the two bits is 10. When the value of the 2 bits indicates the mode of the first receiving mode is Figure 2; or, when the value of the 2 bits is 01, the mode of the first receiving mode is shown in Figure 3, and when the value of the 2 bits is 10, the mode of the first receiving mode is indicated. As shown in Fig. 1, when the value of the two bits is 11, the mode indicating the first receiving mode is as shown in Fig. 2;

Or, when the value of the two bits is 00, it indicates that the mode of the first receiving mode is Figure 2, and when the value of the two bits is 01, it indicates that the mode of the first receiving mode is Figure 3, and the value of the two bits is 10. When the value of the 2 bits indicates the mode of the first receiving mode is Figure 1; or, when the value of the 2 bits is 01, the mode of the first receiving mode is shown in Figure 2, and when the value of the 2 bits is 10, it indicates the mode of the first receiving mode. As shown in Fig. 3, when the value of the 2 bits is 11, it indicates that the mode of the first receiving mode is as shown in Fig. 1;

Or, when the value of the two bits is 00, it indicates that the mode of the first receiving mode is Figure 2, and when the value of the two bits is 01, it indicates that the mode of the first receiving mode is Figure 1, and the value of the two bits is 10. When the value of the two bits is 01, the mode of the first receiving mode is shown in Figure 2, and when the value of the two bits is 10, the mode of the first receiving mode is Figure 1, when the value of the two bits is 11, the mode indicating the first receiving mode is Figure 3; of course, supporting the first receiving mode can also occupy multiple bits. The indication of multiple bits is similar to the indication of 1 bit. This is no longer described.

Optionally, the number of bits occupied by the cell list supporting the first receiving mode may be fixed, or may be determined according to the number of cells supporting the first receiving mode.

Among them, the state of the terminal device may be the RRC inactive (INACTIVE) state, the RRC connected (CONNECTED) state, or the RRC idle (IDLE) state.

Among them, the terminal device in FIG. 1 and FIG. 3 may be in the RRC-CONNECTED state, and the terminal device in FIG. 2 may be in the RRC-IDLE state, or in the RRC-CONNECTED state, or in the RRC-INACTIVE state.

Among them, the RRC-INACTIVE state is different from the RRC-IDLE state and the RRC connected (CONNECTED) state.

In an implementation manner of the present application, the first receiving condition includes at least one of the following:

The signal quality of the serving cell is greater than or equal to the first threshold;

The signal quality of the serving cell is less than the second threshold;

The signal quality of the neighboring cell is greater than or equal to the third threshold;

The signal quality of the neighboring cell is less than the fourth threshold;

The difference between the signal quality of the neighboring cell and the signal quality of the serving cell is greater than or equal to the fifth threshold.

Among them, the first threshold, the second threshold, the third threshold, the fourth threshold, and the fifth threshold may be preset.

Among them, the second threshold may be greater than the first threshold, and the fourth threshold may be greater than the third threshold.

In an implementation manner of this application, the second receiving condition includes at least one of the following:

The signal quality of the serving cell is greater than or equal to the sixth threshold;

The signal quality of the serving cell is less than the seventh threshold;

The signal quality of the neighboring cell is greater than or equal to the eighth threshold;

The signal quality of the neighboring cell is less than the ninth threshold;

The difference between the signal quality of the neighboring cell and the signal quality of the serving cell is greater than or equal to the tenth threshold.

Among them, the sixth threshold, the seventh threshold, the eighth threshold, the ninth threshold, and the tenth threshold may be preset.

Among them, the seventh threshold may be greater than the sixth threshold, and the ninth threshold may be greater than the eighth threshold.

In an implementation manner of the present application, the method further includes:

Receiving a second message sent by the network device, the second message carrying received configuration update information, the received configuration update information is used to update the received configuration information, and the second message includes a dedicated RRC message, a system At least one of message, MAC CE, and DCI.

The dedicated RRC message includes, but is not limited to, any one of RRC Release message, RRC connection reconfiguration message, RRC connection reestablishment message, RRC connection setup message, RRC connection resume message, or other RRC messages.

The system message includes but is not limited to at least one of MIB and SIB, and at least one of MSI, RMSI or other system information.

The receiving configuration update information can update the content in the receiving configuration information, and can also update the information corresponding to the content in the receiving configuration information.

In an implementation manner of the present application, the receiving target data in the at least one RB includes:

If at least one of the first receiving conditions is met, the terminal device receives the target data in the primary RB and the secondary RB;

Or, if at least one of the second receiving conditions is satisfied, the terminal device only receives the target data in the main RB.

The target data in the primary RB received by the terminal device may be the same or different from the target data in the secondary RB received.

For example, the target data in the main RB is the target data sent by the network device, and the target data in the auxiliary RB has packet loss, which is different from the target data sent by the network device. Therefore, the target data in the main RB is different from the target data sent by the auxiliary RB. The target data in RB is different.

It can be seen that in the embodiment of the present application, the terminal device determines whether to receive the target data in the secondary RB according to the first receiving condition and the second receiving condition, which not only ensures the reliability of data transmission, but also does not need to receive the secondary RB. In the case of target data, it is beneficial to reduce the energy consumption of the terminal equipment.

In an implementation manner of the present application, the receiving target data in at least one radio bearer RB includes:

Receive a third message sent by the network device, where the third message is used to instruct the terminal device to receive target data in the primary RB and the secondary RB, and the third message includes a dedicated RRC message and a system message , At least one of MAC CE and DCI;

Alternatively, a fourth message sent by the network device is received, where the fourth message is used to instruct the terminal device to receive the target data in the main RB, and the fourth message includes a dedicated RRC message, a system message, and MAC CE And at least one of DCI.

In an implementation manner of the present application, before the receiving target data in at least one radio bearer RB, the method includes:

Send first information to a network device, where the first information is used by the network device to determine whether to instruct the terminal device to receive target data in the primary RB and the secondary RB, and the first information includes at least one of the following Type: the signal quality of the neighboring cell, the neighboring cell whose signal quality is greater than or equal to the eleventh threshold, and the second information used to indicate that the terminal device is interested in receiving target data in the RB of the neighboring cell.

Send third information to the network device, where the third information is used by the network device to determine whether to instruct the terminal device to receive the target data in the main RB, and the third information includes at least one of the following: Signal quality, a neighboring cell with a signal quality greater than or equal to the twelfth threshold, and fourth information used to indicate that the terminal device is not interested in receiving target data in the RB of the neighboring cell.

The network device feeds back the third message according to the first information sent by the terminal device, and the network device feeds back the fourth message according to the third information sent by the terminal device.

Wherein, after the network device receives the first information, the network device sends fifth information to the network device of the neighboring cell, and the fifth information is used to indicate that the terminal device is interested in receiving the information in the RB of the neighboring cell. Target data.

Wherein, after the network device receives the third information, the network device sends sixth information to the network device of the neighboring cell, and the sixth information is used to indicate that the terminal device is not interested in receiving in the RB of the neighboring cell. Target data.

Among them, the twelfth threshold and the eleventh threshold can both be preset or configured by the network.

Among them, the twelfth threshold may be equal to or different from the eleventh threshold.

Among them, the twelfth threshold can be -90dB or -80dB, and so on.

Among them, the eleventh threshold can be -90dB, it can also be -80dB, it can also be -89dB, and so on.

In an implementation manner of the present application, the receiving target data in at least one RB includes:

Receive target data in a protocol entity corresponding to each RB in the at least one RB, and merge the target data, the protocol entity corresponding to each RB is a protocol entity of the first protocol layer, and The first protocol layer includes at least one of the following: a radio link control RLC layer, a packet data convergence protocol PDCP layer, a protocol layer above the RLC layer, and a protocol layer above the PDCP layer;

Alternatively, the target data is received in the protocol entity corresponding to each of the at least one RB, and the target data is merged in the target functional entity in the terminal device.

Among them, if the first protocol layer is the RLC layer, the data packets in the target data are all RLC protocol data units (Protocol Data Unit, PDU), if the first protocol layer is the PDCP layer, the data packets in the target data are all PDCP PDU, if the first protocol layer is a protocol layer above the RLC layer, the data packets in the target data are all protocol layer PDUs above the RLC layer, if the first protocol layer is a protocol layer above the PDCP layer, then The data packets in the target data are all protocol layer PDUs above the PDCP layer.

Among them, FIG. 5 is a schematic diagram of a protocol stack corresponding to DRB, and FIG. 6 is a schematic diagram of a protocol stack corresponding to MRB. If the first protocol layer is PDCP, then x in the MRB protocol stack is PDCP.

Among them, the protocol layer above the RLC layer is the protocol layer above the RLC layer in the protocol stack corresponding to the MRB.

Among them, the protocol layer above the PDCP layer is the protocol layer above the PDCP layer in the protocol stack corresponding to the DRB.

Among them, the target functional entity is a preset functional entity of the terminal device.

Among them, the target functional entity may be different from the entity in the protocol stack corresponding to the terminal device, or may be the same as the entity in the protocol stack corresponding to the terminal device.

The first protocol layer is determined by the main RB.

Among them, if the primary RB is a DRB, the first protocol layer may be an RLC layer, a PDCP layer, or a protocol layer above the PDCP layer.

Among them, the main RB is DRB, the first protocol layer is the PDCP layer, and x in the MRB protocol stack is PDCP.

Among them, if the main RB is MRB, the first protocol layer can be RLC or a protocol layer above RLC; if the main RB is MRB and x in the MRB protocol stack is PDCP, the first protocol layer can be RLC , Or PDCP.

In an implementation manner of the present application, after the receiving the target data in at least one RB, the method further includes:

Based on the serial number SN associated with the target data, discarding the target data corresponding to the repeated SN in the SN, and uploading the target data corresponding to the non-duplicated SN to the upper protocol layer of the first protocol layer;

A reception status report is sent in the at least one RB, and the reception status report is used to indicate the reception status of the terminal device to receive the target data.

Wherein, the content of the reception status report sent in at least one RB is the same.

Among them, the receiving situation includes the success of receiving the target data or the failure of receiving the target data.

Among them, if the target data consists of multiple data packets, each data packet corresponds to an SN.

It can be seen that, in the embodiment of the present application, the content of the reception status report sent in at least one RB is the same, which is beneficial to the reliability of data transmission.

Please refer to FIG. 7. FIG. 7 is a terminal device provided by an embodiment of the present application, including: one or more processors, one or more memories, one or more communication interfaces, and one or more programs;

The one or more programs are stored in the memory, and are configured to be executed by the one or more processors;

The program includes instructions for performing the following steps:

Receive target data in at least one radio bearer RB, where the target data in the at least one RB is data of a target service.

Or, the at least one RB is an RB of the same type in different cells;

Or, the at least one RB is a different type of RB in different cells.

In an implementation manner of the present application, before the receiving the target data in the at least one RB, the program includes instructions that are further used to perform the following steps:

A service identifier supporting the first receiving mode;

An RB identifier supporting the first receiving mode;

Main RB identification;

The mode of the first receiving manner;

Activate the first receiving condition of the first receiving mode;

Deactivate the second receiving condition of the first receiving mode;

A list of cells supporting the first receiving mode;

The state of the terminal device.

The signal quality of the serving cell is less than the second threshold;

The signal quality of the neighboring cell is less than the fourth threshold;

The signal quality of the serving cell is less than the seventh threshold;

The signal quality of the neighboring cell is less than the ninth threshold;

In an implementation manner of the present application, a second message sent by the network device is received, the second message carries received configuration update information, and the received configuration update information is used to update the received configuration information, and The second message includes at least one of dedicated RRC messages, system messages, MAC CE, and DCI.

In an implementation manner of the present application, in the aspect of receiving the target data in the at least one RB, the program includes instructions that are further used to perform the following steps:

In an implementation manner of the present application, in the aspect of receiving target data in at least one radio bearer RB, the program includes instructions further used to perform the following steps:

In an implementation manner of the present application, before the receiving the target data in the at least one radio bearer RB, the program includes instructions further used to perform the following steps:

In an implementation manner of the present application, in terms of receiving target data in at least one RB, the program includes instructions further used to perform the following steps:

In an implementation manner of the present application, the first protocol layer is determined by the main RB.

In an implementation manner of the present application, after the target data in at least one RB is received, the program includes instructions that are further used to perform the following steps:

It should be noted that the specific implementation process of this embodiment can refer to the specific implementation process described in the foregoing method embodiment, which will not be described here.

Please refer to FIG. 8. FIG. 8 is a data transmission device provided by an embodiment of the present application, which is applied to a terminal device, and the device includes:

The communication unit 801 is configured to receive target data in at least one radio bearer RB, where the target data in the at least one RB is data of a target service.

Or, the at least one RB is an RB of the same type in different cells;

Or, the at least one RB is a different type of RB in different cells.

In an implementation manner of the present application, the communication unit 801 is further configured to receive a first message sent by a network device before receiving target data in at least one RB, and the first message carries reception configuration information, and The first message includes at least one of a dedicated radio resource control RRC message, a system message, a medium access control MAC control element CE, and downlink control information DCI.

A service identifier supporting the first receiving mode;

An RB identifier supporting the first receiving mode;

Main RB identification;

The mode of the first receiving manner;

Activate the first receiving condition of the first receiving mode;

Deactivate the second receiving condition of the first receiving mode;

A list of cells supporting the first receiving mode;

The state of the terminal device.

The signal quality of the serving cell is less than the second threshold;

The signal quality of the neighboring cell is less than the fourth threshold;

The signal quality of the serving cell is less than the seventh threshold;

The signal quality of the neighboring cell is less than the ninth threshold;

In an implementation manner of the present application, the communication unit 801 is further configured to receive a second message sent by the network device, where the second message carries receiving configuration update information, and the receiving configuration update information is used to The receiving configuration information is updated, and the second message includes at least one of a dedicated RRC message, a system message, a MAC CE, and a DCI.

In an implementation manner of the present application, in the aspect of receiving the target data in the at least one RB, the communication unit 801 is further configured to receive the target data in the primary RB and the secondary RB by the terminal device. Before data, it is determined by the processing unit 802 that the terminal device satisfies at least one of the first receiving conditions;

Alternatively, the communication unit 801 is further configured to determine, through the processing unit 802, that at least one of the second receiving conditions is satisfied before the terminal device only receives the target data in the main RB.

In an implementation manner of the present application, in terms of receiving target data in at least one radio bearer RB, the communication unit 801 is further configured to:

In an implementation manner of the present application, the communication unit 801 is further configured to send first information to the network device before receiving the target data in the at least one radio bearer RB, and the first information is used for the The network device determines whether to instruct the terminal device to receive target data in the primary RB and the secondary RB, and the first information includes at least one of the following: the signal quality of the neighboring cell, and the signal quality is greater than or equal to the eleventh threshold The neighboring cell is the second information used to indicate that the terminal device is interested in receiving target data in the RB of the neighboring cell.

In an implementation manner of the present application, the communication unit 801 is further configured to send third information to the network device before receiving the target data in the at least one radio bearer RB, and the third information is used for the network device It is determined whether to instruct the terminal device to receive the target data in the main RB, and the third information includes at least one of the following: signal quality of neighboring cells, neighboring cells with signal quality greater than or equal to the twelfth threshold, and used to indicate The terminal device is not interested in receiving the fourth information of the target data in the RB of the neighboring cell.

In an implementation manner of the present application, the apparatus further includes a processing unit 802. In the aspect of receiving target data in at least one radio bearer RB, the communication unit 801 is configured to perform processing in each of the at least one RB. Receiving target data in a protocol entity corresponding to each RB;

The processing unit 802 is configured to merge the target data, the protocol entity corresponding to each RB is a protocol entity of the first protocol layer, and the first protocol layer includes at least one of the following: wireless link Control the RLC layer, the packet data convergence protocol PDCP layer, the protocol layer above the RLC layer, and the protocol layer above the PDCP layer; or,

The communication unit 801 is configured to receive target data in a protocol entity corresponding to each of the at least one RB;

The processing unit 802 is configured to merge the target data in a target functional entity in the terminal device.

In an implementation manner of the present application, after receiving the target data in at least one RB, the processing unit 802 is further configured to convert the target data corresponding to the repeated SN in the SN based on the serial number SN associated with the target data Discarding, and uploading the target data corresponding to the non-duplicated SN to the upper protocol layer of the first protocol layer.

In an implementation manner of the present application, after receiving target data in at least one RB, the communication unit 801 is further configured to send a reception status report in the at least one RB, and the reception status report is used to indicate to the terminal The receiving situation of the device receiving the target data.

It should be noted that the communication unit 801 in the device can be implemented by a communication interface, and the processing unit 802 can be implemented by a processor.

In the embodiment of the present application, the device 800 in FIG. 8 may also be a chip, a chip module, a UE, or a chip system, such as a system on chip (system on chip, SoC). Correspondingly, the communication unit 801 may be the transceiver circuit of the chip, which is not limited here.

Regarding the various modules/units contained in the various devices and products described in the above embodiments, they may be software modules/units, hardware modules/units, or part software modules/units and part hardware modules/units. . For example, for various devices and products that are applied to or integrated in a chip, the various modules/units contained therein can be implemented in the form of hardware such as circuits, or at least part of the modules/units can be implemented in the form of software programs. Runs on the integrated processor inside the chip, and the remaining (if any) part of the modules/units can be implemented by hardware methods such as circuits; for each device and product applied to or integrated in the chip module, the modules/units contained therein can be All are implemented by hardware such as circuits. Different modules/units can be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, or at least part of the modules/units can be implemented by software programs. The software program runs on the processor integrated inside the chip module, and the remaining (if any) part of the modules/units can be implemented by hardware methods such as circuits; for each device and product applied to or integrated in the terminal, the modules contained therein The modules/units can all be implemented by hardware such as circuits, and different modules/units can be located in the same component (for example, chip, circuit module, etc.) or different components in the terminal, or at least part of the modules/units can be implemented in the form of software programs Implementation, the software program runs on the processor integrated inside the terminal, and the remaining (if any) part of the modules/units can be implemented by hardware such as circuits.

An embodiment of the present application also provides a chip used for target data in at least one RB, and the target data in the at least one RB is data of a target service.

An embodiment of the present application also provides a chip module, including a transceiving component and a chip, wherein the chip is configured to receive target data from at least one RB through the transceiving component, and the target data in the at least one RB Data for the target business.

An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any method as recorded in the above method embodiment , The above-mentioned computer includes user equipment.

The embodiments of the present application also provide a computer program product. The above-mentioned computer program product includes a non-transitory computer-readable storage medium storing a computer program. Part or all of the steps of the method. The computer program product may be a software installation package, and the above-mentioned computer includes user equipment.

It should be noted that for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should know that this application is not limited by the described sequence of actions. Because according to this application, some steps can be performed in other order or at the same time. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in an embodiment, reference may be made to related descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed device may be implemented in other ways. For example, the device embodiments described above are only illustrative, for example, the division of the above-mentioned units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or integrated. To 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 or other forms.

The units described above as separate components may or may not be physically separate, 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 objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

If the above integrated unit 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 memory. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a memory. A number of instructions are included to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the foregoing methods of the various embodiments of the present application. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by a program instructing relevant hardware. The program can be stored in a computer-readable memory, and the memory can include: a flash disk , Read-only memory (English: Read-Only Memory, abbreviation: ROM), random access device (English: Random Access Memory, abbreviation: RAM), magnetic disk or optical disk, etc.

The embodiments of the application are described in detail above, and specific examples are used in this article to illustrate the principles and implementation of the application. The descriptions of the above embodiments are only used to help understand the methods and core ideas of the application; at the same time, for Those of ordinary skill in the art, based on the idea of the application, will have changes in the specific implementation and the scope of application. In summary, the content of this specification should not be construed as a limitation to the application.

Claims

A data transmission method, characterized in that it is applied to a terminal device, and the method includes:

Receive target data in at least one radio bearer RB, where the target data in the at least one RB is data of a target service.
The method according to claim 1, wherein the at least one RB is a different type of RB in the same cell;

Or, the at least one RB is an RB of the same type in different cells;

Or, the at least one RB is a different type of RB in different cells.
The method according to claim 1 or 2, wherein the at least one RB includes at least one of a primary RB and a secondary RB.
The method according to claim 3, wherein the main RB is configured by a network device; or, the main RB is the default of the terminal device, and the main RB is a transmission station in a serving cell. For the RB of the target data, the secondary RB is an RB used for transmitting the target data in a neighboring cell.
The method according to any one of claims 1-4, wherein before the receiving target data in at least one RB, the method comprises:

Receive a first message sent by a network device, the first message carries reception configuration information, the first message includes a dedicated radio resource control RRC message, a system message, a medium access control MAC control element CE, and downlink control information DCI At least one of.
The method according to claim 5, wherein the receiving configuration information comprises at least one of the following:

An indication of whether the first receiving mode is supported, where the first receiving mode is used by the terminal device to receive data in the primary RB and the secondary RB;

A service identifier supporting the first receiving mode;

An RB identifier supporting the first receiving mode;

Main RB identification;

The mode of the first receiving manner;

Activate the first receiving condition of the first receiving mode;

Deactivate the second receiving condition of the first receiving mode;

A list of cells supporting the first receiving mode;

The state of the terminal device.
The method according to claim 6, wherein the first receiving condition includes at least one of the following:

The signal quality of the serving cell is greater than or equal to the first threshold;

The signal quality of the serving cell is less than the second threshold;

The signal quality of the neighboring cell is greater than or equal to the third threshold;

The signal quality of the neighboring cell is less than the fourth threshold;

The difference between the signal quality of the neighboring cell and the signal quality of the serving cell is greater than or equal to the fifth threshold.
The method according to claim 6, wherein the second receiving condition includes at least one of the following:

The signal quality of the serving cell is greater than or equal to the sixth threshold;

The signal quality of the serving cell is less than the seventh threshold;

The signal quality of the neighboring cell is greater than or equal to the eighth threshold;

The signal quality of the neighboring cell is less than the ninth threshold;

The difference between the signal quality of the neighboring cell and the signal quality of the serving cell is greater than or equal to the tenth threshold.
The method according to any one of claims 5-8, wherein the method further comprises:

Receiving a second message sent by the network device, the second message carrying received configuration update information, the received configuration update information is used to update the received configuration information, and the second message includes a dedicated RRC message, a system At least one of message, MAC CE, and DCI.
The method according to claim 9, wherein the receiving the target data in the at least one RB comprises:

If at least one of the first receiving conditions is met, the terminal device receives the target data in the primary RB and the secondary RB;

Or, if at least one of the second receiving conditions is satisfied, the terminal device only receives the target data in the main RB.
The method according to any one of claims 1 to 4, wherein the receiving target data in at least one radio bearer RB comprises:

Receive a third message sent by the network device, where the third message is used to instruct the terminal device to receive target data in the primary RB and the secondary RB, and the third message includes a dedicated RRC message and a system message , At least one of MAC CE and DCI;

Alternatively, a fourth message sent by the network device is received, where the fourth message is used to instruct the terminal device to receive the target data in the main RB, and the fourth message includes a dedicated RRC message, a system message, and MAC CE And at least one of DCI.
The method according to claim 11, wherein before the receiving target data in at least one radio bearer RB, the method comprises:

Send first information to a network device, where the first information is used by the network device to determine whether to instruct the terminal device to receive target data in the primary RB and the secondary RB, and the first information includes at least one of the following Type: the signal quality of the neighboring cell, the neighboring cell whose signal quality is greater than or equal to the eleventh threshold, and the second information used to indicate that the terminal device is interested in receiving target data in the RB of the neighboring cell.
The method according to claim 11, wherein before the receiving target data in at least one radio bearer RB, the method comprises:

Send third information to the network device, where the third information is used by the network device to determine whether to instruct the terminal device to receive the target data in the main RB, and the third information includes at least one of the following: Signal quality, a neighboring cell with a signal quality greater than or equal to the twelfth threshold, and fourth information used to indicate that the terminal device is not interested in receiving target data in the RB of the neighboring cell.
The method according to any one of claims 1-13, wherein the receiving target data in at least one RB comprises:

Receive target data in a protocol entity corresponding to each RB in the at least one RB, and merge the target data, the protocol entity corresponding to each RB is a protocol entity of the first protocol layer, and The first protocol layer includes at least one of the following: a radio link control RLC layer, a packet data convergence protocol PDCP layer, a protocol layer above the RLC layer, and a protocol layer above the PDCP layer;

Alternatively, the target data is received in the protocol entity corresponding to each of the at least one RB, and the target data is merged in the target functional entity in the terminal device.
The method according to claim 14, wherein the method further comprises:

The first protocol layer is determined by the main RB.
The method according to claim 1, wherein after said receiving the target data in at least one RB, the method further comprises:

Based on the serial number SN associated with the target data, the target data corresponding to the repeated SN in the SN is discarded, and the target data corresponding to the non-repeated SN is uploaded to the upper protocol layer of the first protocol layer.
The method according to claim 1, wherein after said receiving the target data in at least one RB, the method further comprises:

A reception status report is sent in the at least one RB, and the reception status report is used to indicate the reception status of the terminal device to receive the target data.
A data transmission device, characterized in that it is applied to terminal equipment, and the device includes:

The communication unit is configured to receive target data in at least one radio bearer RB, where the target data in the at least one RB is data of a target service.
The apparatus according to claim 18, wherein the at least one RB is a different type of RB in the same cell;

Or, the at least one RB is an RB of the same type in different cells;

Or, the at least one RB is a different type of RB in different cells.
The apparatus according to claim 18 or 19, wherein the at least one RB includes at least one of a primary RB and a secondary RB.
The apparatus according to claim 20, wherein the main RB is configured by a network device; or, the main RB is the default of the terminal device, and the main RB is used for transmission in a serving cell. For the RB of the target data, the secondary RB is an RB used for transmitting the target data in a neighboring cell.
The apparatus according to any one of claims 18-21, wherein before the receiving target data in at least one RB, the communication unit is further configured to:

Receive a first message sent by a network device, the first message carries reception configuration information, the first message includes a dedicated radio resource control RRC message, a system message, a medium access control MAC control element CE, and downlink control information DCI At least one of.
The device according to claim 22, wherein the receiving configuration information comprises at least one of the following:

An indication of whether the first receiving mode is supported, where the first receiving mode is used by the terminal device to receive data in the primary RB and the secondary RB;

A service identifier supporting the first receiving mode;

An RB identifier supporting the first receiving mode;

Main RB identification;

The mode of the first receiving manner;

Activate the first receiving condition of the first receiving mode;

Deactivate the second receiving condition of the first receiving mode;

A list of cells supporting the first receiving mode;

The state of the terminal device.
The device according to claim 23, wherein the first receiving condition comprises at least one of the following:

The signal quality of the serving cell is greater than or equal to the first threshold;

The signal quality of the serving cell is less than the second threshold;

The signal quality of the neighboring cell is greater than or equal to the third threshold;

The signal quality of the neighboring cell is less than the fourth threshold;

The difference between the signal quality of the neighboring cell and the signal quality of the serving cell is greater than or equal to the fifth threshold.
The device according to claim 23, wherein the second receiving condition comprises at least one of the following:

The signal quality of the serving cell is greater than or equal to the sixth threshold;

The signal quality of the serving cell is less than the seventh threshold;

The signal quality of the neighboring cell is greater than or equal to the eighth threshold;

The signal quality of the neighboring cell is less than the ninth threshold;

The difference between the signal quality of the neighboring cell and the signal quality of the serving cell is greater than or equal to the tenth threshold.
The device according to any one of claims 22-25, wherein the communication unit is further configured to:

Receiving a second message sent by the network device, the second message carrying received configuration update information, the received configuration update information is used to update the received configuration information, and the second message includes a dedicated RRC message, a system At least one of message, MAC CE, and DCI.
The apparatus according to claim 26, wherein the receiving target data in the at least one RB, the communication unit is configured to:

If at least one of the first receiving conditions is met, the terminal device receives the target data in the primary RB and the secondary RB;

Or, if at least one of the second receiving conditions is satisfied, the terminal device only receives the target data in the main RB.
The apparatus according to any one of claims 18-21, wherein the receiving target data in at least one radio bearer RB, and the communication unit is configured to:

Receive a third message sent by the network device, where the third message is used to instruct the terminal device to receive target data in the primary RB and the secondary RB, and the third message includes a dedicated RRC message and a system message , At least one of MAC CE and DCI;

Alternatively, a fourth message sent by the network device is received, where the fourth message is used to instruct the terminal device to receive the target data in the main RB, and the fourth message includes a dedicated RRC message, a system message, and MAC CE And at least one of DCI.
The apparatus according to claim 28, wherein before the receiving the target data in the at least one radio bearer RB, the communication unit is further configured to:

Send first information to a network device, where the first information is used by the network device to determine whether to instruct the terminal device to receive target data in the primary RB and the secondary RB, and the first information includes at least one of the following Type: the signal quality of the neighboring cell, the neighboring cell whose signal quality is greater than or equal to the eleventh threshold, and the second information used to indicate that the terminal device is interested in receiving target data in the RB of the neighboring cell.
The apparatus according to claim 28, wherein before the receiving the target data in the at least one radio bearer RB, the communication unit is further configured to:

Send third information to the network device, where the third information is used by the network device to determine whether to instruct the terminal device to receive the target data in the main RB, and the third information includes at least one of the following: Signal quality, a neighboring cell with a signal quality greater than or equal to the twelfth threshold, and fourth information used to indicate that the terminal device is not interested in receiving target data in the RB of the neighboring cell.
The device according to any one of claims 18-30, wherein the device further comprises a processing unit, the receiving target data in at least one RB, and the communication unit is further configured to: The protocol entity corresponding to each RB in the RB receives target data; the processing unit is used to merge the target data, and the protocol entity corresponding to each RB is a protocol entity of the first protocol layer, so The first protocol layer includes at least one of the following: a radio link control RLC layer, a packet data convergence protocol PDCP layer, a protocol layer above the RLC layer, and a protocol layer above the PDCP layer; or,

The communication unit is further configured to: receive target data in a protocol entity corresponding to each of the at least one RB;

The processing unit is configured to merge the target data in a target functional entity in the terminal device.
The device according to claim 31, wherein the device further comprises:

The first protocol layer is determined by the main RB.
The apparatus according to claim 18, wherein after the receiving the target data in the at least one RB, the processing unit is further configured to:

Based on the serial number SN associated with the target data, the target data corresponding to the repeated SN in the SN is discarded, and the target data corresponding to the non-repeated SN is uploaded to the upper protocol layer of the first protocol layer.
The apparatus according to claim 18, wherein after receiving the target data in at least one RB, the communication unit is further configured to:

A reception status report is sent in the at least one RB, and the reception status report is used to indicate the reception status of the terminal device to receive the target data.
A terminal device, characterized in that the terminal device includes a memory, a communication interface, and one or more programs, and the one or more programs are stored in the memory and configured to be executed by the processor The program includes instructions for executing the steps in the method according to any one of claims 1-17.
A computer-readable storage medium, characterized by storing a computer program for electronic data exchange, wherein the computer program causes a computer to execute the method according to any one of claims 1-17.