WO2021052101A1

WO2021052101A1 - Multi-cell data transmission method and device

Info

Publication number: WO2021052101A1
Application number: PCT/CN2020/110380
Authority: WO
Inventors: 徐敏; 刘星; 韩立锋
Original assignee: 展讯通信（上海）有限公司
Priority date: 2019-09-20
Filing date: 2020-08-21
Publication date: 2021-03-25
Also published as: CN110650548A; CN110650548B

Abstract

Embodiments of the present invention provide a multi-cell data transmission method and device. When a UE is in a non-connected state, transmission configuration information is obtained, the transmission configuration information comprising cell information corresponding to at least two alternative cells; when the UE has data to be sent, at least two target cells are selected from the alternative cells according to the transmission configuration information; and the data is separately sent on uplink resources of the selected at least two target cells. That is, in the embodiments of the present invention, when a UE is in a non-connected state and has data to be sent, at least two cells are selected, according to obtained transmission configuration information, to separately send the data, thereby improving the possibility of a network device receiving the data, and further ensuring the reliability of the data transmitted by the UE.

Description

Method and equipment for multi-cell data transmission

Technical field

The embodiments of the present invention relate to the field of mobile communication technologies, and in particular to a method and equipment for multi-cell data transmission.

Background technique

With the rapid development of wireless communication technology, the fifth generation of mobile communication technology (5th Generation, 5G for short) has now emerged. In the 5G New Radio (NR) system, user equipment (User Equipment, UE) has three states: IDLE, INACTIVE, and CONNECTED.

Among them, in the idle state, the UE is not connected to the network device, and the UE only needs to periodically initiate location update, cell selection and reselection procedures, and receive paging; in the connected state, the UE is connected to the network device, and the network device can add and drop to the UE Data scheduling; In the inactive state, the UE does not need to notify the network equipment when moving within a certain radio access network (RAN) notification area (RAN notification area, referred to as RNA). The UE retains certain configurations. If the UE has data to send, the UE needs to migrate to the connected state and restore the reserved configuration for data transmission.

During the transition of the UE from the idle state or the inactive state to the connected state, the UE can perform data transmission. For example, the UE carries the data in the third message Msg3 in the random access process, or the UE uses network equipment pre-configuration Resources for data transmission. However, the current data transmission method is difficult to guarantee the reliability of the data transmitted by the UE.

Summary of the invention

The embodiment of the present invention provides a method and device for multi-cell data transmission to overcome the technical problem that the current data transmission method is difficult to ensure the reliability of the data transmitted by the UE when the UE is in a disconnected state.

In the first aspect, an embodiment of the present invention provides a method for multi-cell data transmission, which is applied to a UE, the UE is in a disconnected state, and the method includes:

Acquire transmission configuration information, where the transmission configuration information includes cell information corresponding to at least two candidate cells, the candidate cells are used for the UE to perform data transmission in a non-connected state, and the non-connected state includes an idle state or an inactive state state;

When the UE has data to send, select at least two target cells from the candidate cells according to the transmission configuration information;

Respectively sending data on the uplink resources of the at least two target cells.

In a possible design, the acquiring transmission configuration information includes:

Obtain the transmission configuration information from information pre-configured by the UE, or obtain the transmission configuration information from a data transmission protocol.

Obtain the transmission configuration information from the network device.

In a possible design, the obtaining the transmission configuration information from the network device includes:

A radio resource control (Radio Resource Control, RRC for short) release message is received from the network device, where the RRC release message includes the transmission configuration information.

In a possible design, the obtaining transmission configuration information from a network device includes:

Receive a System Information Block (System Information Block, SIB for short) from the network device, where the SIB includes the transmission configuration information.

In a possible design, the transmission configuration information includes multi-cell data transmission conditions, and the multi-cell data transmission conditions include at least one of the following information: data volume threshold, data service type information, and allowed multi-cell data Transmission instructions and data reliability threshold;

Before selecting at least two target cells from the candidate cells according to the transmission configuration information, the method further includes:

Determining whether the data to be sent by the UE meets the multi-cell data transmission condition;

If the data to be sent by the UE meets the multi-cell data transmission condition, continue to perform the step of selecting at least two target cells from the candidate cells according to the transmission configuration information.

In a possible design, the transmission configuration information includes a signal quality threshold for selecting the target cell, and/or the maximum number of cells for multi-cell transmission;

The selecting at least two target cells from the candidate cells according to the transmission configuration information includes:

According to the measured cell signal quality of each candidate cell, select at least two candidate cells as the target cell, or select the cell where the UE currently resides and at least one candidate cell as the target cell; where The cell signal quality of the target cell meets the signal quality threshold, and/or the number of target cells is less than or equal to the maximum number of cells for multi-cell transmission.

In a possible design, the transmission configuration information includes at least two radio link control (Radio Link Control, RLC) association groups, or target cell indication information, and each RLC association group includes at least An alternative cell;

The selecting at least two target cells according to the transmission configuration information includes:

Selecting a candidate cell from each RLC association group as the target cell;

Or, use the candidate cell indicated in the target cell indication information as the target cell.

In a possible design, the transmission configuration information further includes the uplink resources of each candidate cell, and the separately sending data on the uplink resources of the at least two target cells includes:

Send the preamble sequence and data on the uplink resources of each target cell;

Or, when the timing advance (Timing Advance, TA for short) of the UE is valid, or the UE does not need TA, data is sent on the uplink resources of each target cell respectively;

Or, when all target cells belong to the same TA group, the data is sent on the uplink resources of each target cell respectively, and the preamble sequence is sent on the uplink resources of the first target cell among the at least two target cells, so The first target cell is any one of the following cells: the target cell where the UE currently camps, the target cell with the strongest signal among the at least two target cells, the original primary cell, the cell designated by the network device, the at least Any one of the two target cells.

In a possible design, before sending data respectively on the uplink resources of the at least two target cells, the method includes:

Read the system message of the target cell, and obtain the uplink resource of the target cell.

In a possible design, the separately sending data on the uplink resources of the at least two target cells includes:

The same data is sent on the uplink resources of the at least two target cells, or different data is sent on the uplink resources of the at least two target cells.

In the second aspect, an embodiment of the present invention provides a method for multi-cell data transmission, which is applied to a network device, and the method includes:

Send transmission configuration information to the UE, where the transmission configuration information includes cell information corresponding to at least two candidate cells. The candidate cells are used by the UE for data transmission in a non-connected state, and the non-connected state includes an idle state or Inactive state

Receiving data sent by the UE on the uplink resources of at least two target cells in a disconnected state, where the at least two target cells are selected by the UE from the at least two candidate cells according to the transmission configuration information definite.

In a possible design, the sending transmission configuration information to the UE includes:

Send an RRC release message to the UE, where the RRC release message includes the transmission configuration information.

Send the SIB to the UE, where the SIB includes the transmission configuration information.

In a possible design, the transmission configuration information includes:

Multi-cell data transmission conditions, where the multi-cell data transmission conditions include at least one of the following information: a data transmission volume threshold, data service type information, an indication of allowing multi-cell data transmission, and a data reliability threshold.

In a possible design, the transmission configuration information includes:

Select the signal quality threshold of the target cell and/or the maximum number of cells for multi-cell transmission.

In a possible design, the transmission configuration information includes:

At least two RLC association groups, or target cell indication information, each of the RLC association groups includes at least one candidate cell, and the target cell indication information is used to indicate the target cell.

In a possible design, the transmission configuration information further includes uplink resources corresponding to the candidate cells;

The receiving the data sent by the UE on the uplink resources of at least two target cells in a non-connected state includes:

Receiving the preamble sequence and data sent by the UE on the uplink resources of each target cell in a non-connected state;

Or, receiving data sent by the UE on the uplink resources of each target cell in a non-connected state, where the TA of the UE is valid, or the UE does not need a TA;

Or, receiving data sent by the UE through the uplink resources of each target cell in a non-connected state, and receiving uplink resources of the UE through a first target cell of the at least two target cells in a non-connected state The at least two target cells belong to the same TA group, and the first target cell is any one of the following cells: the target cell where the UE currently camps, the at least two target cells The target cell with the strongest signal among the target cells, the original primary cell, the cell designated by the network device, and any one of the at least two target cells.

In a possible design, the receiving the data sent by the UE on the uplink resources of at least two target cells in a disconnected state includes:

Receiving the same data sent by the UE on the uplink resources of each target cell in a disconnected state; or receiving different data sent by the UE on the uplink resources of each target cell in a disconnected state.

In a third aspect, an embodiment of the present invention provides an apparatus for multi-cell data transmission, which is applied to a UE, the UE is in a disconnected state, and the apparatus includes:

The acquiring module is configured to acquire transmission configuration information, where the transmission configuration information includes cell information corresponding to at least two candidate cells, and the candidate cells are used for the UE to perform data transmission in a non-connected state, and the non-connected state includes Idle state or inactive state;

A selection module, configured to select at least two target cells from the candidate cells according to the transmission configuration information when the UE has data to send;

The transmission module is configured to respectively send data on the uplink resources of the at least two target cells.

In a fourth aspect, an embodiment of the present invention provides a device for multi-cell data transmission, which is applied to network equipment, and the device includes:

The sending module is configured to send transmission configuration information to the UE, where the transmission configuration information includes cell information corresponding to at least two candidate cells, and the candidate cells are used for the UE to perform data transmission in a disconnected state. State includes idle state or inactive state;

The receiving module is configured to receive data sent by the UE on the uplink resources of at least two target cells in a disconnected state, where the at least two target cells are configured by the UE from the at least two target cells according to the transmission configuration information. Determined in the candidate cells.

In a fifth aspect, an embodiment of the present invention provides a user equipment, including: at least one processor and a memory;

The memory stores computer execution instructions;

The at least one processor executes the computer-executable instructions stored in the memory, so that the at least one processor executes the method for multi-cell data transmission provided in the first aspect.

In a sixth aspect, an embodiment of the present invention provides a network device, including: at least one processor and a memory;

The memory stores computer execution instructions;

The at least one processor executes the computer-executable instructions stored in the memory, so that the at least one processor executes the method for multi-cell data transmission provided in the second aspect.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium having computer-executable instructions stored in the computer-readable storage medium. When the processor executes the computer-executed instructions, the The method of cell data transmission.

In an eighth aspect, an embodiment of the present invention provides a computer-readable storage medium having computer-executable instructions stored in the computer-readable storage medium. When the processor executes the computer-executable instructions, the computer-readable The method of cell data transmission.

According to the method and device for multi-cell data transmission provided by the embodiment of the present invention, when the UE is in a disconnected state, transmission configuration information is obtained. The transmission configuration information includes cell information corresponding to at least two candidate cells. When sending, at least two target cells are selected from the candidate cells according to the above-mentioned transmission configuration information, and data are respectively sent on the uplink resources of the selected at least two target cells. That is, in the embodiment of the present invention, when the UE is in a disconnected state and has data to send, it will select at least two cells to send separately according to the acquired transmission configuration information, thereby increasing the possibility of the network device receiving the data , Thereby ensuring the reliability of the data transmitted by the UE.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

FIG. 1 is a schematic diagram of the architecture of a multi-cell data transmission system provided by an embodiment of the present invention;

2 is a first schematic diagram of signaling for state transition in a method for multi-cell data transmission according to an embodiment of the present invention;

3 is a second schematic diagram of signaling for state transition in the method for multi-cell data transmission provided by an embodiment of the present invention;

FIG. 4 is a first schematic flowchart of a method for multi-cell data transmission according to an embodiment of the present invention;

FIG. 5 is a second schematic flowchart of a method for multi-cell data transmission according to an embodiment of the present invention;

6 is a schematic diagram 1 of modules of a multi-cell data transmission apparatus provided by an embodiment of the present invention;

FIG. 7 is a second schematic diagram of modules of an apparatus for multi-cell data transmission according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of the hardware structure of a device provided by an embodiment of the present invention.

detailed description

In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Referring to FIG. 1, FIG. 1 is a schematic diagram of the architecture of a multi-cell data transmission system provided by an embodiment of the present invention. The system for multi-cell data transmission provided in this embodiment includes UE 101 and network equipment 102.

Among them, UE101 may refer to various forms of user equipment, access terminals, user units, user stations, mobile stations, mobile stations (MS), remote stations, remote terminals, mobile equipment, terminal equipment (terminal equipment). ), wireless communication equipment, user agent or user device. It can also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a handheld computer (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 the future 5G network, or future evolution of the Public Land Mobile Network (PLMN) The embodiment of the present application is not limited to the terminal equipment, etc., as long as the UE 101 can wirelessly communicate with the network device 102.

The embodiment of this application defines the one-way communication link from the access network to the UE as the downlink, the data transmitted on the downlink is the downlink data, and the transmission direction of the downlink data is called the downlink direction; and the one from the UE to the access network The unidirectional communication link is the uplink, the data transmitted on the uplink is the uplink data, and the transmission direction of the uplink data is called the uplink direction.

Among them, the network device 102 is a public mobile communication network device, which is the interface device for UE101 to access the Internet, and is also a form of radio station. It refers to the radio transceiver for information transfer with UE101 in a certain radio coverage area. A radio station includes a base station (base station, BS for short), which can also be called a base station equipment, and is a device deployed on a radio access network (RAN) to provide wireless communication functions. For example, the equipment that provides the base station function in the 2G network includes the base transceiver station (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 includes the evolution Node B (evolved NodeB, eNB), in wireless local area networks (WLAN), the equipment that provides base station functions is an access point (access point, AP), and 5G NR provides base station functions. The device gNB, and the evolving Node B (ng-eNB), where the NR technology is used for communication between the gNB and the UE, and the Evolved Universal Terrestrial Radio Access (Evolved Universal Terrestrial Radio Access) is used between the ng-eNB and the UE. (Referred to as E-UTRA) 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 the embodiment of the present invention, the UE 101 communicates with the network device 102 through a wireless communication network. The method of multi-cell data transmission in the embodiment of the present invention can be executed by the UE 101, the network device 102, or The UE 101 and the network device 102 execute together. For example, in some embodiments, the network device 102 sends notification information to the UE 101; after receiving the notification information, the UE 101 executes corresponding tasks based on the notification information. The following uses detailed embodiments for detailed description.

In the embodiment of the present invention, when the UE is in the non-connected state, if it needs to initiate data transmission, it needs to perform the random access process and move to the connected state. Signaling diagram 1 for state transition in the cell data transmission method. In the embodiment of the present invention, the process of the UE transitioning from the non-connected state to the connected state includes:

The first step: the UE obtains the primary and secondary synchronization signal (Synchronization Signal, referred to as SS)/Physical Broadcast Channel (PBCH) resource block (also referred to as SSB) of the cell that meets the conditions, or the channel state information reference signal (Channel Select an SSB or CSI-RS in State Information Reference Signals (CSI-RS for short), then select a preamble, and send a random access preamble on the time-frequency resources allowed to initiate, namely Msg1: Random Access Preamble.

Step 2: The UE receives the random access response sent by the network device, that is, Msg2: Random Access Response, which contains TA information.

Step 3: The UE uses the authorization received in Msg2 to send scheduled transmission information, namely Msg3: Scheduled Transmission.

Step 4: If the UE receives the conflict resolution information, that is, Msg4: Contention Resolution, it is considered that the conflict resolution is successful and the random access process is successful. If the scheduling of the base station is not received within a certain period of time, it is considered that the conflict resolution has failed.

In order to speed up the random access process, reduce the delay and reduce the number of messages, a two-step random access process is proposed. For details, refer to FIG. 3, which shows the state transition in the multi-cell data transmission method provided by the embodiment of the present invention. Schematic diagram two of the signaling.

In Figure 3, MsgA contains the original Msg1 and Msg3 information, that is, contains the preamble sent on the Physical Random Access Channel (PRACH) and the Physical Uplink Shared Channel (PUSCH). The payload part; MsgB contains Msg2 and Msg4 information. Or MsgA only contains the payload part sent on PUSCH.

In the embodiment of the present invention, in order to send data in a disconnected state, in addition to sending the RRC message in Msg3 or MsgA, data may also be carried.

Based on the foregoing theory, an embodiment of the present invention proposes a method for multi-cell data transmission.

Referring to FIG. 4, FIG. 4 is a first flowchart of a method for multi-cell data transmission according to an embodiment of the present invention. The executor of this embodiment is the UE in the embodiment shown in FIG. 1, and the UE is in a disconnected state. As shown in Figure 4, the method includes:

S401. Obtain transmission configuration information, where the transmission configuration information includes cell information corresponding to at least two candidate cells, where the candidate cells are used for data transmission by the UE in a non-connected state, and the non-connected state includes an idle state or an inactive state. .

In the embodiment of the present invention, when the UE is in a disconnected state, transmission configuration information can be obtained, and the transmission configuration information includes cell information corresponding to at least two candidate cells. The candidate cell described above is used for the UE to perform data transmission in a non-connected state, and the non-connected state includes an idle state (RRC_IDLE) and an inactive state (RRC_INACTIVE).

Wherein, the above-mentioned cell information may include the cell identity and uplink resources of each candidate cell.

S402: When the UE has data to send, select at least two target cells from the candidate cells according to the foregoing transmission configuration information.

In the embodiment of the present invention, when the UE is in a non-connected state and has data to send, at least two target cells are selected from the candidate cells according to the foregoing transmission configuration information. For example, according to the foregoing transmission configuration information, two cells that are most suitable for data transmission can be selected from all candidate cells as target cells.

S403: Send data respectively on the uplink resources of the at least two target cells.

Among them, each target cell can be a cell with a different frequency point. If each target cell belongs to the same base station, then carrier aggregation (CA) operation is performed. If each target cell does not belong to the same base station, then dual connectivity is performed. -Connectivity, referred to as DC) operation.

Among them, the CA operation can aggregate multiple Component Carriers (CC) together to achieve a maximum transmission bandwidth of 100 MHz, which can effectively increase the uplink transmission rate; the DC operation can realize data transmission through multiple base stations.

It is understandable that the foregoing manner of sending the same data on the uplink resources of at least two target cells respectively is a duplication manner. The same data is transmitted through multiple paths, thereby improving the reliability of data transmission and reducing transmission delay. Or by sending different data on the uplink resources of at least two target cells, respectively, the transmission efficiency can be improved and the data transmission delay can be reduced.

Further, based on the content described in the foregoing embodiment, in a feasible embodiment, obtaining transmission configuration information in the foregoing step S401 includes:

Obtain the transmission configuration information from the information pre-configured by the UE, or obtain the transmission configuration information from the data transmission protocol.

That is, in the embodiment of the present invention, the above-mentioned transmission configuration information may be stored in the information pre-configured by the UE. Alternatively, the foregoing transmission configuration information is pre-written in the data transmission protocol corresponding to the UE.

Further, based on the content described in the foregoing embodiment, in another feasible embodiment, obtaining transmission configuration information in the foregoing step S401 includes:

Obtain the transmission configuration information from the network device.

Specifically, obtaining transmission configuration information from a network device may include the following two methods:

method one:

The RRC release message is received from the network device, and the RRC release message includes the foregoing transmission configuration information. The network will use the RRC release message to migrate the UE to the unconnected state. The RRC release message can instruct the UE to retain configuration information such as radio bearers, and also configure the above-mentioned transmission configuration information. The configuration of each UE can be different.

Wherein, the foregoing transmission configuration information may include uplink resources corresponding to each candidate cell (where the UE can use these uplink resources to send data), cell identification information of each candidate cell, and one or more of the following information:

The signal quality threshold of the target cell. Only the cells that meet the signal quality threshold can perform multi-cell transmission; the maximum number of cells for multi-cell transmission; the indication that only one preamble is allowed; the conditions of the cell that sends the preamble; preamble and uplink The corresponding relationship of resources, where the base station can determine the UE uplink transmission resource through the received preamble, and receive the data sent by the UE on the corresponding resource; the power allocation ratio between multiple cells; at least two RLC association groups, among which, One RLC configuration is associated with one or more cells or frequency points.

That is, in the embodiment of the present invention, the UE may obtain the foregoing transmission configuration information through the RRC release message received from the network device.

Way two:

The SIB is received from the network device, and the SIB includes the above-mentioned transmission configuration information. The non-connected UE will perform cell selection or reselection based on the cell measurement reselection parameters, and stay in a cell. When the cell is reselected to a new cell, it needs to read the SIB to obtain the relevant information of the cell, which is also configured For the foregoing transmission configuration information, the information acquired at this time is the same for each UE.

Among them, the transmission configuration information configured in the SIB is consistent with the transmission configuration information configured in the RRC release message in the foregoing embodiment. For details, please refer to the foregoing embodiment, which will not be repeated here.

That is, in the embodiment of the present invention, the UE may obtain the foregoing transmission configuration information through the SIB received from the network device.

In addition, in another feasible embodiment of the present invention, the UE can simultaneously receive the RRC release message and the SIB from the network device. When the transmission configuration information in the RRC release message conflicts with the transmission configuration information in the SIB, if a conflict occurs If it is an uplink resource, the transmission configuration information in the SIB shall prevail.

Further, based on the content described in the foregoing embodiment, in a feasible embodiment, the foregoing transmission configuration information includes a multi-cell data transmission condition, and the multi-cell data transmission condition includes at least one of the following information: data Data volume threshold, data service type information, indication of allowing multi-cell data transmission, and data reliability threshold;

Before selecting at least two target cells from the candidate cells according to the transmission configuration information in the above step S402, the method further includes:

It is determined whether the data to be sent by the UE meets the above-mentioned multi-cell data transmission condition; if it is satisfied, step S402 is continued.

Among them, the method for multi-cell data transmission provided in the embodiment of the present invention may be aimed at small packet data transmission. For example, when the data volume of the data to be sent by the UE needs to be less than the data volume threshold, the multi-cell data transmission is adopted.

The foregoing multi-cell data transmission method may also be targeted at a specific service type. The data service type information may include logical channel information or radio bearer (Radio Bearer, RB for short) information. The UE compares the data information that needs to be sent to determine whether Use multi-cell data transmission. For example, when the logical channel or RB of the data to be sent by the UE conforms to the above-mentioned data service type information, etc., multi-cell data transmission is adopted.

The above-mentioned multi-cell data transmission method can also be aimed at services with high reliability requirements. For example, the data to be sent by the UE is a service with high reliability requirements, such as URLLC (Ultra-Reliable Low-Latency Communication). Only use multi-cell data transmission for services.

The above-mentioned multi-cell data transmission method may also be based on the above-mentioned indication of allowing multi-cell data transmission. For example, when the multi-cell data transmission condition includes the above-mentioned indication of allowing multi-cell data transmission, the UE uses multi-cell data transmission.

Further, based on the content described in the foregoing embodiment, in a feasible embodiment, the transmission configuration information includes cell information of each candidate cell, the signal quality threshold with the target cell, and/or the maximum multi-cell transmission Number of cells.

In the foregoing step S402, selecting at least two target cells from candidate cells according to the transmission configuration information includes:

According to the measured cell signal quality of each candidate cell, select at least two candidate cells as the target cell, or select the cell where the UE currently resides and at least one candidate cell as the target cell; wherein, the target The cell signal quality of the cell meets the signal quality threshold, and/or the number of target cells is less than or equal to the above-mentioned maximum number of cells for multi-cell transmission.

Among them, in the embodiment of the present invention, each candidate cell can be sorted according to the cell signal quality of each candidate cell, and then the number of target cells N (N≥2) is determined, and the cell with the best signal quality in the ranking result The first N candidate cells are determined as the target cell.

In addition, a candidate cell that meets the above-mentioned signal quality threshold can also be selected as the target cell according to the candidate cell list.

In another feasible embodiment, the transmission configuration information includes at least two RLC association groups, or target cell indication information, and the foregoing RLC association group includes at least one candidate cell.

In the foregoing step S402, selecting at least two target cells from the candidate cells according to the transmission configuration information, further includes:

A candidate cell is selected from each RLC association group as the target cell, and further, the selected target cell does not exceed the maximum number of cells for multi-cell transmission; or the candidate cell indicated in the target cell indication information As the target cell.

That is, in the embodiment of the present invention, the target cell may be a cell in an RLC association group, or may be a candidate cell designated by a network device, where the cell signal quality of the target cell also meets the above-mentioned signal quality threshold.

In addition, in the embodiment of the present invention, the target cell may also be a cell configured by a network device, for example, a cell configured for CA or DC operation in a connected state, at least two of which may be selected as the target cell.

Further, based on the content described in the foregoing embodiment, in a feasible embodiment, the transmission configuration information also includes the uplink resources of each candidate cell, and in the foregoing step S403, the uplink resources of at least two target cells are used. Send data separately, including:

Or, when the UE's TA is valid, or the UE does not need a TA, send data on the uplink resources of each target cell respectively;

Or, when all target cells belong to the same TA group, send data on the uplink resources of each target cell respectively, and send the preamble sequence on the uplink resources of the first target cell of the at least two target cells . The first target cell is any one of the following cells: the target cell where the UE currently resides, the target cell with the strongest signal among the at least two target cells, the original primary cell, the cell designated by the network device, and the at least two target cells Any one of the target cells in the.

Among them, the above-mentioned data may be RRC messages, UE identification (ID), service data, and so on.

Among them, when all target cells belong to the same TA group, a target cell can be selected from all target cells to send the preamble. The method of selecting the target cell for sending the preamble includes: UE selection and selection based on the cell information pre-configured by the network The cell where the UE currently resides, the cell with the strongest signal among the candidate cells, the original primary cell (Pcell), the cell designated by the network device, etc. are selected.

Among them, the network equipment can determine that the UE is performing multi-cell transmission through the preamble sent by the UE and/or the corresponding uplink resource; or can also determine that the UE is performing multi-cell transmission through the indication information added by the UE in the data sent .

Among them, if the duplication transmission mode is adopted, after the UE sends the data transmission, the timer is started to receive the response message at the time when the last transmission is completed, and if a response from one of the cells is received, the transmission is considered to be successful.

Wherein, if the uplink resource of the selected target cell is not included in the above-mentioned transmission configuration information, it is necessary to read the system message of the corresponding target cell to obtain the relevant uplink resource. Since the uplink resources are configured periodically, there are one or more uplink resources in a cycle, according to the uplink resources of the selected camping cell, or the uplink resources of the cell sending the preamble, or the uplink resources of the selected target cell, Select the closest target cell uplink resource corresponding to the time domain.

Further, based on the content described in the foregoing embodiment, an embodiment of the present invention also provides a method for multi-cell data transmission. The method is applied to the network device shown in FIG. 1. Referring to FIG. 5, 5 is a method provided by an embodiment of the present invention. The second flow chart of the multi-cell data transmission method. The above-mentioned multi-cell data transmission method includes:

S501. Send transmission configuration information to a UE, where the transmission configuration information includes cell information corresponding to at least two candidate cells, where the candidate cells are used for the UE to perform data transmission in a non-connected state, and the non-connected state includes idle State or inactive state.

S502. Receive data sent by the UE on the uplink resources of at least two target cells in a disconnected state, where the at least two target cells are selected by the UE from the at least two candidate cells according to the transmission configuration information. Determined in the cell.

That is, in the embodiment of the present invention, the network device can pre-configure the transmission configuration information and send it to the UE, and at the same time can receive the data sent by the UE through the uplink resources of at least two target cells in the disconnected state, so as to ensure that the UE sends the data. The reliability of the data.

Further, in a feasible embodiment, sending transmission configuration information to the UE in step S501 includes:

Send an RRC release message to the UE, and the RRC release message includes the foregoing transmission configuration information.

Send the SIB to the UE, and the SIB includes the above-mentioned transmission configuration information.

Further, in a feasible embodiment, the foregoing transmission configuration information includes:

The multi-cell data transmission condition includes at least one of the following information: a data transmission volume threshold, data service type information, an indication of allowing multi-cell data transmission, and a data reliability threshold.

Among them, after the UE receives the foregoing transmission configuration information, when the data to be sent by the UE meets the foregoing multi-cell data transmission conditions, the UE will select at least two target cells from the candidate cells according to the foregoing transmission configuration information, and then select at least two target cells from the candidate cells according to the foregoing transmission configuration information. Data sent through the uplink resources of the selected target cell in the connected state.

Among them, after the UE receives the above-mentioned transmission configuration information, the UE can select at least two candidate cells as target cells according to the measured cell signal quality of each candidate cell, where the cell signal quality of the target cell meets the above-mentioned signal quality. The quality threshold, and/or the number of target cells is less than or equal to the maximum number of cells for multi-cell transmission.

At least two RLC association groups, or target cell indication information, the RLC association group includes at least one candidate cell, and the target cell indication information is used to indicate the target cell.

Wherein, after receiving the above-mentioned transmission configuration information, the UE may select a candidate cell from each RLC association group as the target cell; or, use the candidate cell indicated in the above-mentioned target cell indication information as the target cell .

Further, in a feasible embodiment, the above-mentioned transmission configuration information also includes the uplink resources of each candidate cell, and in the above-mentioned step S502, it is received that the UE sends data on the uplink resources of at least two target cells in a disconnected state. Data, including:

Receiving the preamble sequence and data sent by the UE through the uplink resources of each target cell in the unconnected state.

Or, receiving data sent by the UE on the uplink resources of each target cell in a non-connected state, where the TA of the UE is valid; or the UE does not need a TA.

Or, receiving the data sent by the UE through the uplink resources of each target cell in the disconnected state, and receiving the UE sending the preamble sequence through the uplink resources of the first target cell of the at least two target cells in the disconnected state , Wherein the at least two target cells mentioned above belong to the same TA group, and the first target cell is any one of the following cells: the target cell where the UE currently resides, the target cell with the strongest signal among the at least two target cells, and the original host A cell, a cell designated by a network device, and any one of the at least two target cells.

Further, in a feasible embodiment, the receiving of data sent by the UE on the uplink resources of at least two target cells in a non-connected state in the foregoing step S502 includes:

Receiving the same data sent by the UE through the uplink resources of each target cell in the unconnected state; or receiving different data sent by the UE through the uplink resources of each target cell in the unconnected state.

It should be noted that the network device described in the corresponding embodiment in FIG. 5 above has the same functions implemented by the network device described in the corresponding embodiment in FIG. 4, and the specific content can refer to the description in the corresponding embodiment in FIG. 4 Network equipment, I won't repeat it here.

In the method for multi-cell data transmission provided by the embodiment of the present invention, a network device can pre-configure transmission configuration information. The transmission configuration information includes cell information corresponding to at least two candidate cells. The candidate cells are used by the UE in a disconnected state. Perform data transmission, and then send the transmission configuration information to the UE, and receive the data sent by the UE on the uplink resources of at least two target cells in a disconnected state. The at least two target cells are the UE according to the transmission configuration information from the above Determined in at least two candidate cells. That is, in the embodiment of the present invention, when the UE is in a disconnected state and has data to send, it will select at least two cells to send separately according to the transmission configuration information obtained from the network device, thereby improving the network device to receive the data. The possibility of ensuring the reliability of the data transmitted by the UE.

Further, based on the content described in the foregoing embodiment, an embodiment of the present invention also provides a device for multi-cell data transmission. The device is applied to the UE shown in FIG. 1. Referring to FIG. 6, 6 is a multi-cell data transmission device provided by an embodiment of the present invention. Block diagram 1 of the device for cell data transmission. The above-mentioned multi-cell data transmission device 60 includes:

The acquiring module 601 is configured to acquire transmission configuration information, where the transmission configuration information includes cell information corresponding to at least two candidate cells, and the candidate cells are used by the UE to perform data transmission in a disconnected state. Including idle state or inactive state.

The selection module 602 is configured to select at least two target cells from the candidate cells according to the transmission configuration information when the UE has data to send.

The transmission module 603 is configured to send data on the uplink resources of the at least two target cells respectively.

In a feasible embodiment, the obtaining module 601 is used to:

Obtain the transmission configuration information from the network device.

In a feasible embodiment, the acquiring the transmission configuration information from a network device includes:

An RRC release message is received from the network device, where the RRC release message includes the transmission configuration information.

The SIB is received from the network device, and the SIB includes the above-mentioned transmission configuration information.

In a feasible embodiment, the foregoing transmission configuration information includes multi-cell data transmission conditions, and the multi-cell data transmission conditions include at least one of the following information: data volume threshold, data service type information, and multi-cell data transmission allowed The instructions and data reliability thresholds;

The above-mentioned multi-cell data transmission device 60 further includes:

The determining module is configured to determine whether the data to be sent by the UE meets the multi-cell data transmission condition; if the data to be sent by the UE meets the multi-cell data transmission condition, continue to execute the selection module 602.

In a feasible embodiment, the transmission configuration information includes a signal quality threshold for selecting the target cell, and/or the maximum number of cells for multi-cell transmission;

The selection module 602 is used to:

In a feasible embodiment, the transmission configuration information includes at least two RLC association groups, or target cell indication information, and the RLC association group includes at least one candidate cell.

The selection module 602 is used to:

A candidate cell is selected from each RLC association group as the target cell.

In a feasible embodiment, the transmission configuration information also includes the uplink resources of each candidate cell, and the transmission module 603 is configured to:

Or, when the TA of the UE is valid, or the UE does not need a TA, send data on the uplink resources of each target cell respectively;

In a feasible embodiment, the device further includes:

The reading module is used to read the system information of the target cell and obtain the uplink resources of the target cell.

In a feasible embodiment, the transmission module 603 is used to:

The device 60 for multi-cell data transmission provided by the embodiment of the present invention is applied to a UE. When the UE is in a disconnected state, the transmission configuration information is obtained. The transmission configuration information includes cell information corresponding to at least two candidate cells. When there is data to be sent, at least two target cells are selected from the candidate cells according to the foregoing transmission configuration information, and the data are respectively sent on the uplink resources of the selected at least two target cells. That is, in the embodiment of the present invention, when the UE is in a disconnected state and has data to send, it will select at least two cells to send separately according to the acquired transmission configuration information, thereby increasing the possibility of the network device receiving the data , Thereby ensuring the reliability of the data transmitted by the UE.

Further, based on the content described in the foregoing embodiment, an embodiment of the present invention also provides an apparatus for multi-cell data transmission. The apparatus is applied to the network equipment shown in FIG. 1. Referring to FIG. 7, 7 is a device provided by an embodiment of the present invention. The second block diagram of the multi-cell data transmission device, the above-mentioned multi-cell data transmission device 70 includes:

The sending module 701 is configured to send transmission configuration information to the UE. The transmission configuration information includes cell information corresponding to at least two candidate cells. The candidate cells are used for the UE to perform data transmission in a disconnected state. The state includes idle state or inactive state.

The receiving module 702 is configured to receive data sent by the UE on the uplink resources of at least two target cells in a disconnected state, where the at least two target cells are selected by the UE from the at least two candidate cells according to the transmission configuration information. Determined in the cell.

In a feasible embodiment, the sending module 701 is used to:

The SIB is sent to the UE, and the SIB includes the transmission configuration information.

In a feasible embodiment, the transmission configuration information includes:

Multi-cell data transmission conditions. The above-mentioned multi-cell data transmission conditions include at least one of the following information: a data transmission volume threshold, data service type information, an indication of allowing multi-cell data transmission, and a data reliability threshold.

In a feasible embodiment, the foregoing transmission configuration information includes:

At least two RLC association groups, or target cell indication information, the RLC association group includes at least one candidate cell, and the above target cell indication information is used to indicate the target cell.

In a feasible embodiment, the transmission configuration information further includes uplink resources corresponding to each candidate cell;

The receiving module 702 is used for:

The device 70 for multi-cell data transmission provided by the embodiment of the present invention is applied to a network device. The network device may pre-configure transmission configuration information. The transmission configuration information includes cell information corresponding to at least two candidate cells. The UE performs data transmission in a disconnected state, and then sends transmission configuration information to the UE, and receives data sent by the UE on the uplink resources of at least two target cells in the disconnected state. The at least two target cells are based on the UE The foregoing transmission configuration information is determined from the foregoing at least two candidate cells. That is, in the embodiment of the present invention, when the UE is in a disconnected state and has data to send, it will select at least two cells to send separately according to the transmission configuration information obtained from the network device, thereby improving the network device to receive the data. The possibility of ensuring the reliability of the data transmitted by the UE.

Further, an embodiment of the present invention also provides a user equipment, including: at least one processor and a memory; the memory stores computer-executable instructions; at least one processor executes the computer-executable instructions stored in the memory, so that at least one processor executes as shown in FIG. The method of multi-cell data transmission described in 4.

Further, an embodiment of the present invention also provides a network device, including: at least one processor and a memory; the memory stores computer-executable instructions; at least one processor executes the computer-executable instructions stored in the memory, so that at least one processor executes as shown in FIG. 5. The method of multi-cell data transmission described in 5.

The user equipment and network equipment provided in the foregoing embodiment can be respectively used to implement the technical solutions of the foregoing method embodiments, and their implementation principles and technical effects are similar, and details are not described herein again in this embodiment.

In order to better understand the embodiment of the present invention, refer to FIG. 8, which is a schematic diagram of the hardware structure of a device according to an embodiment of the present invention. As shown in FIG. 8, when the device 80 is the UE shown in FIG. 1, the device 80 includes: a processor 801 and a memory 802; wherein:

The memory 802 is used to store computer execution instructions.

The processor 801 is configured to execute computer-executable instructions stored in the memory to implement each step executed by the UE in the foregoing embodiment. For details, refer to the relevant description in the foregoing method embodiment.

Or, when the device 80 is the network device shown in FIG. 1, the device 80 includes: a processor 801 and a memory 802; wherein:

The memory 802 is used to store computer execution instructions.

The processor 801 is configured to execute computer-executable instructions stored in the memory to implement each step executed by the network device in the foregoing embodiment. For details, refer to the relevant description in the foregoing method embodiment.

Optionally, the memory 802 may be independent or integrated with the processor 801.

When the memory 802 is independently provided, the device 80 further includes a bus 803 for connecting the memory 802 and the processor 801.

The embodiment of the present invention also provides a computer-readable storage medium, the computer-readable storage medium stores computer-executable instructions, and when the processor executes the computer-executed instructions, the method for multi-cell data transmission applied to the UE as above is realized .

The embodiment of the present invention also provides a computer-readable storage medium, the computer-readable storage medium stores computer-executable instructions, and when the processor executes the computer-executable instructions, the above-mentioned multi-cell data transmission applied to network equipment is realized. method.

In the several embodiments provided by the present invention, it should be understood that the disclosed device and method may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the modules is only a logical function division, and there may be other divisions in actual implementation, for example, multiple modules 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 modules, and may be in electrical, mechanical or other forms.

The modules described as separate components may or may not be physically separated, and the components displayed as modules 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 modules can be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional modules in the various embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules may be integrated into one unit. The units formed by the above modules can be implemented in the form of hardware, or in the form of hardware plus software functional units.

The above-mentioned integrated modules implemented in the form of software functional modules may be stored in a computer readable storage medium. The above-mentioned software function module is stored in a storage medium and includes a number of instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (English: processor) execute the various embodiments of the present application Part of the method.

It should be understood that the foregoing processor may be a central processing unit (English: Central Processing Unit, abbreviated as: CPU), or other general-purpose processors, digital signal processors (English: Digital Signal Processor, abbreviated as DSP), and application-specific integrated circuits (English: Application Specific Integrated Circuit, referred to as ASIC) etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in combination with the invention can be directly embodied as executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.

The memory may include a high-speed RAM memory, or may also include a non-volatile storage NVM, such as at least one disk storage, and may also be a U disk, a mobile hard disk, a read-only memory, a magnetic disk, or an optical disk.

The bus can be an Industry Standard Architecture (ISA) bus, Peripheral Component (PCI) bus, or Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into address bus, data bus, control bus and so on. For ease of representation, the buses in the drawings of this application are not limited to only one bus or one type of bus.

The above-mentioned storage medium can be realized by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Except programmable read only memory (EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and can write information to the storage medium. Of course, the storage medium may also be an integral part of the processor. The processor and the storage medium may be located in Application Specific Integrated Circuits (ASIC for short). Of course, the processor and the storage medium may also exist as discrete components in the electronic device or the main control device.

A person of ordinary skill in the art can understand that all or part of the steps in the foregoing method embodiments can be implemented by a program instructing relevant hardware. The aforementioned program can be stored in a computer readable storage medium. When the program is executed, it executes the steps including the foregoing method embodiments; and the foregoing storage medium includes: ROM, RAM, magnetic disk, or optical disk and other media that can store program codes.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of the present invention. range.

Claims

A method for multi-cell data transmission, characterized in that it is applied to a user equipment UE, where the UE is in a disconnected state, and the method includes:

Acquire transmission configuration information, where the transmission configuration information includes cell information corresponding to at least two candidate cells, the candidate cells are used for the UE to perform data transmission in a disconnected state, and the disconnected state includes an idle state or an inactive state state;

When the UE has data to send, select at least two target cells from the candidate cells according to the transmission configuration information;

Respectively sending data on the uplink resources of the at least two target cells.
The method according to claim 1, wherein said obtaining transmission configuration information comprises:

Obtain the transmission configuration information from information pre-configured by the UE, or obtain the transmission configuration information from a data transmission protocol.
The method according to claim 1, wherein said obtaining transmission configuration information comprises:

Obtain the transmission configuration information from the network device.
The method according to claim 3, wherein said obtaining said transmission configuration information from a network device comprises:

Receive a radio resource control RRC release message from the network device, where the RRC release message includes the transmission configuration information.
The method according to claim 3, wherein said obtaining transmission configuration information from a network device comprises:

A system information block SIB is received from the network device, and the SIB includes the transmission configuration information.
The method according to any one of claims 1 to 5, wherein the transmission configuration information includes multi-cell data transmission conditions, and the multi-cell data transmission conditions include at least one of the following information: data volume threshold , Data service type information, indication of allowing multi-cell data transmission and data reliability threshold;

Before selecting at least two target cells from the candidate cells according to the transmission configuration information, the method further includes:

Determining whether the data to be sent by the UE meets the multi-cell data transmission condition;

If the data to be sent by the UE meets the multi-cell data transmission condition, continue to perform the step of selecting at least two target cells from the candidate cells according to the transmission configuration information.
The method according to any one of claims 1 to 5, wherein the transmission configuration information includes a signal quality threshold for selecting the target cell, and/or a maximum number of cells for multi-cell transmission;

The selecting at least two target cells from the candidate cells according to the transmission configuration information includes:

According to the measured cell signal quality of each candidate cell, select at least two candidate cells as the target cell, or select the cell where the UE currently resides and at least one candidate cell as the target cell; where The cell signal quality of the target cell meets the signal quality threshold, and/or the number of target cells is less than or equal to the maximum number of cells for multi-cell transmission.
The method according to any one of claims 1 to 5, wherein the transmission configuration information includes at least two radio link control layer RLC association groups, or target cell indication information, and each of the RLC association groups Includes at least one candidate cell;

The selecting at least two target cells according to the transmission configuration information includes:

Selecting a candidate cell from each RLC association group as the target cell;

Or, use the candidate cell indicated in the target cell indication information as the target cell.
The method according to any one of claims 1 to 5, wherein the transmission configuration information further includes the uplink resources of each candidate cell, and the uplink resources of the at least two target cells are sent separately Data, including:

Send the preamble sequence and data on the uplink resources of each target cell;

Or, when the UE's timing advance TA is valid, or the UE does not need TA, send data on the uplink resources of each target cell respectively;

Or, when all target cells belong to the same TA group, the data is sent on the uplink resources of each target cell respectively, and the preamble sequence is sent on the uplink resources of the first target cell among the at least two target cells, so The first target cell is any one of the following cells: the target cell where the UE currently camps, the target cell with the strongest signal among the at least two target cells, the original primary cell, the cell designated by the network device, the at least Any one of the two target cells.
The method according to any one of claims 1 to 5, wherein before sending data on the uplink resources of the at least two target cells respectively, the method comprises:

Read the system message of the target cell, and obtain the uplink resource of the target cell.
The method according to any one of claims 1 to 5, wherein the separately sending data on the uplink resources of the at least two target cells comprises:

The same data is sent on the uplink resources of the at least two target cells, or different data is sent on the uplink resources of the at least two target cells.
A method for multi-cell data transmission, characterized in that it is applied to a network device, and the method includes:

Send transmission configuration information to the UE, where the transmission configuration information includes cell information corresponding to at least two candidate cells. The candidate cells are used by the UE for data transmission in a non-connected state, and the non-connected state includes an idle state or Inactive state

Receiving data sent by the UE on the uplink resources of at least two target cells in a disconnected state, where the at least two target cells are selected by the UE from the at least two candidate cells according to the transmission configuration information definite.
The method according to claim 12, wherein the sending transmission configuration information to the UE comprises:

Send an RRC release message to the UE, where the RRC release message includes the transmission configuration information.
The method according to claim 12, wherein the sending transmission configuration information to the UE comprises:

Send the SIB to the UE, where the SIB includes the transmission configuration information.
The method according to any one of claims 12 to 14, wherein the transmission configuration information includes:

Multi-cell data transmission conditions, where the multi-cell data transmission conditions include at least one of the following information: a data transmission volume threshold, data service type information, an indication of allowing multi-cell data transmission, and a data reliability threshold.
The method according to any one of claims 12 to 14, wherein the transmission configuration information includes:

Select the signal quality threshold of the target cell and/or the maximum number of cells for multi-cell transmission.
The method according to any one of claims 12 to 14, wherein the transmission configuration information includes:

At least two RLC association groups, or target cell indication information, each of the RLC association groups includes at least one candidate cell, and the target cell indication information is used to indicate the target cell.
The method according to any one of claims 12 to 14, wherein the transmission configuration information further includes uplink resources corresponding to each candidate cell;

The receiving the data sent by the UE on the uplink resources of at least two target cells in a non-connected state includes:

Receiving the preamble sequence and data sent by the UE on the uplink resources of each target cell in a non-connected state;

Or, receiving data sent by the UE on the uplink resources of each target cell in a non-connected state, where the TA of the UE is valid, or the UE does not need a TA;

Or, receiving data sent by the UE through the uplink resources of each target cell in a non-connected state, and receiving uplink resources of the UE through a first target cell of the at least two target cells in a non-connected state The at least two target cells belong to the same TA group, and the first target cell is any one of the following cells: the target cell where the UE currently camps, the at least two target cells The target cell with the strongest signal among the target cells, the original primary cell, the cell designated by the network device, and any one of the at least two target cells.
The method according to any one of claims 12 to 14, wherein the receiving data sent by the UE on the uplink resources of at least two target cells in a disconnected state comprises:

Receiving the same data sent by the UE on the uplink resources of each target cell in a disconnected state; or receiving different data sent by the UE on the uplink resources of each target cell in a disconnected state.
A device for multi-cell data transmission, characterized in that it is applied to a UE, the UE is in a disconnected state, and the device includes:

The acquiring module is configured to acquire transmission configuration information, where the transmission configuration information includes cell information corresponding to at least two candidate cells, and the candidate cells are used for the UE to perform data transmission in a non-connected state, and the non-connected state includes Idle state or inactive state;

A selection module, configured to select at least two target cells from the candidate cells according to the transmission configuration information when the UE has data to send;

The transmission module is configured to respectively send data on the uplink resources of the at least two target cells.
A device for multi-cell data transmission is characterized in that it is applied to network equipment, and the device includes:

The sending module is configured to send transmission configuration information to the UE, where the transmission configuration information includes cell information corresponding to at least two candidate cells, and the candidate cells are used for the UE to perform data transmission in a disconnected state. State includes idle state or inactive state;

The receiving module is configured to receive data sent by the UE on the uplink resources of at least two target cells in a disconnected state, where the at least two target cells are configured by the UE from the at least two target cells according to the transmission configuration information. Determined in the candidate cells.
A user equipment, characterized by comprising: at least one processor and a memory;

The memory stores computer execution instructions;

The at least one processor executes computer-executable instructions stored in the memory, so that the at least one processor executes the method for multi-cell data transmission according to any one of claims 1 to 11.
A network device, characterized by comprising: at least one processor and a memory;

The memory stores computer execution instructions;

The at least one processor executes computer-executable instructions stored in the memory, so that the at least one processor executes the method for multi-cell data transmission according to any one of claims 12 to 19.
A computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and when the processor executes the computer-executable instructions, the computer-readable storage medium implements any one of claims 1 to 11 Multi-cell data transmission method.
A computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and when the processor executes the computer-executable instructions, the computer-readable storage medium implements any one of claims 12 to 19 Multi-cell data transmission method.