WO2022027459A1

WO2022027459A1 - Data transmission method and apparatus, terminal device, and storage medium

Info

Publication number: WO2022027459A1
Application number: PCT/CN2020/107457
Authority: WO
Inventors: 林雪; 石聪; 李海涛
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2022-02-10
Also published as: CN116210325A

Abstract

The present application relates to the field of wireless communication. Disclosed are a data transmission method and apparatus, a terminal device, and a storage medium. The method is applied to the terminal device, and the terminal device resides in a first cell. The method comprises: if the first cell is not a configuration cell, not allowing an inactive data transmission (IDT) process to be triggered; or, if the first cell is not the configuration cell, according to a trigger condition corresponding to the first cell, determining whether to allow the IDT process to be triggered, wherein the configuration cell is a cell where the terminal device resides when obtaining logical channel configuration information, and the logical channel configuration information is used to configure a logical channel that supports triggering the IDT process.

Description

Data transmission method, device, terminal device and storage medium

technical field

The present application relates to the field of wireless communication, and in particular, to a data transmission method, apparatus, terminal device and storage medium.

Background technique

The RRC_INACTIVE state (that is, the RRC inactive state) is a new state introduced by a New Radio (New Radio, NR) system from the perspective of energy saving.

For a terminal device in the RRC_INACTIVE state, the radio bearer and all radio resources will be released, but the terminal device side and the network device side retain the UE access context to quickly restore the Radio Resource Control (RRC) connection.

In the related art, in the RRC_INACTIVE state, if the terminal device wants to perform data transmission, it needs to trigger the connection establishment and recovery process to restore the RRC connection, and enter the connected state for data transmission, which consumes a lot of power.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a data transmission method, apparatus, terminal device, and storage medium, and provide a method for judging whether to allow an IDT process to be triggered. Since the RRC connection does not need to be restored when the IDT process is triggered, the data transmission, which can reduce the power consumption of the terminal device. The technical solution is as follows.

According to an aspect of the present application, a data transmission method is provided, which is applied to a terminal device where the terminal device resides in a first cell, and the method includes:

In the case that the first cell is not a configuration cell, the triggering of the IDT process is not allowed;

or, in the case that the first cell is not the configured cell, determining whether to allow triggering of the IDT process according to a trigger condition corresponding to the first cell;

The configured cell is a cell where the terminal device resides when the terminal device obtains the logical channel configuration information, and the logical channel configuration information is used to configure a logical channel that supports triggering the IDT process.

According to an aspect of the present application, a data transmission apparatus is provided, which is applied to a terminal device, where the terminal device resides in a first cell, and the apparatus includes: a judgment module;

The judging module is configured to not allow triggering of an IDT process when the first cell is not a configuration cell;

Or, the judging module is configured to determine whether to allow triggering of the IDT process according to a trigger condition corresponding to the first cell when the first cell is not the configured cell;

According to an aspect of the present application, a terminal device is provided, the terminal device comprising: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; The processor is configured to load and execute the executable instructions to implement the data transmission method as described in the above aspects.

According to one aspect of the present application, there is provided a computer-readable storage medium having executable instructions stored in the readable storage medium, the executable instructions being loaded and executed by a processor to realize the data as described in the above-mentioned aspects transfer method.

According to one aspect of the present application, there is provided a computer program product or computer program, the computer program product or computer program comprising computer instructions stored in a computer-readable storage medium, the processor of the computer device being readable from the computer The storage medium reads the computer instructions, and the processor executes the computer instructions, so that the computer device executes the data transmission method described in the above aspects.

The technical solutions provided by the embodiments of the present application include at least the following beneficial effects:

In the inactive state, the terminal device can trigger the IDT process according to the configuration of the logical channel configuration information. The device may not allow the triggering of the IDT process, or determine whether to allow the triggering of the IDT process according to the triggering conditions, thereby providing a method for judging whether the triggering of the IDT process is allowed. Data transmission can reduce the power consumption of terminal equipment.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a block diagram of a communication system provided by an exemplary embodiment of the present application;

2 is a flowchart of a data transmission method provided by an exemplary embodiment of the present application;

3 is a flowchart of a data transmission method provided by an exemplary embodiment of the present application;

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

5 is a structural block diagram of a data transmission apparatus provided by an exemplary embodiment of the present application;

FIG. 6 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.

detailed description

In order to make the objectives, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

First, briefly introduce the terms involved in the embodiments of the present application:

RRC status:

In the 5G network environment, in order to reduce air interface signaling, quickly restore wireless connections, and quickly restore data services, a new RRC state is defined, that is, RRC_INACTIVE state.

RRC_IDLE state (that is, RRC idle state): Mobility is cell selection and reselection based on terminal equipment, paging is initiated by the Core Network (CN), and the paging area is configured by the CN. There is no UE access context on the network device side. There is no RRC connection.

RRC_CONNECTED state (ie, RRC connected state): there is an RRC connection, and the network device and the terminal device have a UE access context. The network device side knows that the location of the terminal device is at the specific cell level. Mobility is the mobility controlled on the network device side. Unicast data can be transmitted between terminal equipment and network equipment.

RRC_INACTIVE state (ie, RRC inactive state): mobility is based on terminal equipment cell selection and reselection, there is a connection between CN-NR, UE access context exists on a certain network equipment, and paging is performed by the radio access network ( Radio Access Network, RAN) triggers, the RAN-based paging area is managed by the RAN, and the network device side knows the location of the terminal device is based on the RAN-based paging area level.

FIG. 1 shows a block diagram of a communication system provided by an exemplary embodiment of the present application. The communication system may include: an access network 12 and a terminal device 14 .

The access network 12 includes several network devices 120 . The network device 120 may be a base station, which is a device deployed in an access network to provide a wireless communication function for a terminal. The base station may include various forms of macro base station, micro base station, relay station, access point and so on. In systems using different radio access technologies, the names of devices with base station functions may be different. For example, in LTE systems, they are called eNodeBs or eNBs; in 5G NR-U systems, they are called gNodeBs or gNBs. . As communication technology evolves, the description of "base station" may change. For the convenience of the embodiments of the present application, the above-mentioned apparatuses for providing a wireless communication function for the terminal device 14 are collectively referred to as network devices.

The terminal device 14 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of user equipment, mobile stations (Mobile Station, MS) , terminal device, etc. For the convenience of description, the devices mentioned above are collectively referred to as terminals. The network device 120 and the terminal device 14 communicate with each other through a certain air interface technology, such as a Uu interface. Optionally, the terminal device is in the RRC_INACTIVE state.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, wideband Code Division Multiple Access (CDMA) system (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, LTE Frequency Division Duplex (Frequency Division Duplex, FDD) system, LTE Time Division Duplex (TDD) systems, Advanced Long Term Evolution (LTE-A) systems, New Radio (NR) systems, evolution systems of NR systems, LTE on unlicensed frequency bands (LTE-based access to Unlicensed spectrum, LTE-U) system, NR-U system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), next-generation communication systems or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (Device to Device, D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication and Vehicle to Everything (V2X) system, etc. The embodiments of the present application can also be applied to these communication systems.

FIG. 2 shows a flowchart of a data transmission method provided by an exemplary embodiment of the present application. The method can be applied to the terminal equipment shown in FIG. 1 , where the terminal equipment resides in the first cell.

The terminal equipment residing in the first cell is in the RRC_INACTIVE state, and can perform an inactive data transmission (Inactive Data Transmission, IDT) process. The IDT process is a process in which the terminal device performs data transmission in the RRC inactive state (ie, the RRC_INACTIVE state). The IDT procedure does not require the establishment of an RRC connection between the terminal device and the network device. This embodiment of the present application does not limit the specific process of the IDT process.

For a terminal device in the RRC_INACTIVE state, if the RRC connection with the network device can only be restored through the connection establishment recovery process and then data transmission is performed, it needs to return to the RRC_INACTIVE state after the data transmission is completed. For a terminal device with a small amount of data and a low transmission frequency, the power consumption is relatively large. Through the IDT process, the transition of the connection state is avoided, and the power consumption can be reduced.

The method includes step 210 or step 220:

Step 210, in the case that the first cell is not a configuration cell, it is not allowed to trigger the IDT process.

Wherein, the configuration cell is the cell where the terminal device resides when it acquires the configuration information of the logical channel, and the configuration information of the logical channel is used to configure the logical channel supporting the triggering of the IDT process.

Optionally, the logical channel configuration information is information configured by the network device to the terminal device when the terminal device is in the RRC connected state (ie, the RRC_CONNECTED state). Since the quality of service (QoS) requirements of the services corresponding to different data are different and mapped to different logical channels, the network device can use the logical channel configuration information to determine whether the logical channel (Logical Channel, LCH) supports triggering the IDT process. to configure.

Exemplarily, the logical channel configuration information includes: logical channels supporting the triggering of the IDT process are logical channel #1 and logical channel #2.

Optionally, the fact that the first cell is not a configured cell means: when in the connected state, the terminal device has not camped on the first cell; or, when in the connected state, although the terminal device has camped on the first cell, it has not Obtain the corresponding logical channel configuration information.

That is to say, when the terminal device camps on the first cell and the terminal device is in the RRC_INACTIVE state, the first cell does not correspond to valid logical channel configuration information. The terminal equipment camping on the first cell is not allowed to trigger the IDT procedure for data transmission.

Step 220: In the case that the first cell is not a configuration cell, according to the triggering condition corresponding to the first cell, determine whether to allow the triggering of the IDT process.

Wherein, the configuration cell is the cell where the terminal equipment resides when it acquires the configuration information of the logical channel, and the configuration information of the logical channel is used to configure the logical channel that supports the triggering of the IDT process.

The first cell corresponds to a trigger condition, and in the case that the first cell is not a configured cell, the terminal device can determine whether the IDT process can be triggered in the first cell for data transmission according to the trigger condition.

Optionally, there may be one or more trigger conditions corresponding to the first cell, and the terminal device may determine whether to trigger the IDT process according to at least one of the trigger conditions.

To sum up, in the method provided in this embodiment, in the case of inactive state, the terminal device can trigger the IDT process according to the configuration of the logical channel configuration information, and the terminal device does not obtain valid data in the first cell where the terminal device resides. When the logical channel configuration information is not a configuration cell, the terminal device may not allow the triggering of the IDT process, or determine whether to allow the triggering of the IDT process according to the triggering conditions, thereby providing a method for judging whether the triggering of the IDT process is allowed. During the IDT process, the RRC connection does not need to be restored, and data transmission can also be performed, which can reduce the power consumption of the terminal device.

In an optional embodiment based on FIG. 2 , the first cell is a cell where the terminal equipment resides after cell reselection.

Among them, cell reselection refers to a process in which a terminal device selects a suitable cell to provide a service signal through measurement. Before the terminal device performs cell reselection, the cell where it resides is the source cell; after the cell is performed, the cell where it resides (ie, the first cell) is the target cell.

Optionally, after cell reselection occurs and the terminal device moves to the first cell, the terminal device will detect the first cell to detect whether the first cell is a configuration cell.

In a possible case, the first cell is a configuration cell. That is to say, when the terminal device is in the connected state and camps on the first cell, the logical channel configuration information has been acquired. Then, after cell reselection occurs and the terminal device moves to the first cell, the IDT transmission is triggered by using the logical channel configuration information corresponding to the first cell.

In another possible case, the first cell is not a configuration cell. That is, after cell reselection occurs and the first cell is not a configured cell, the terminal device can determine whether the IDT process can be triggered in the new cell by any one of the two methods provided in the above embodiments.

Mode 1: It is not allowed to trigger the IDT process.

Manner 2: According to the triggering condition corresponding to the first cell, it is determined whether to allow the triggering of the IDT process.

Hereinafter, the above two manners will be further described.

Manner 1: In the case that the first cell is not a configuration cell, the triggering of the IDT procedure is not allowed.

In the embodiment corresponding to mode 1, the logical channel configuration is one of the necessary conditions for triggering the IDT process. When the terminal device cannot obtain a valid logical channel configuration, the IDT process cannot be triggered, preventing the terminal device from having no logic in the current cell. During channel configuration, preempt the IDT resources of the current cell.

Exemplarily, the source cell is cell A, and the first cell where the terminal equipment resides after cell reselection is cell B. In conjunction with the following examples:

1) The terminal device in the connected state obtains the logical channel configuration (ie, logical channel configuration information) that can trigger the IDT process through dedicated signaling in cell A (source cell). For example, the logical channels that can trigger the IDT process are logical channel #1 and logical channel #2.

This embodiment of the present application does not limit the specific expression form of the dedicated signaling carrying the configuration information of the logical channel.

2) After the terminal equipment enters the RRC_INACITVE state, and the terminal equipment is still in cell A. When data arrives, the terminal device determines whether the IDT process can be triggered according to whether the current arriving data belongs to a logical channel that can trigger the IDT process.

For example, the data to be transmitted comes from logical channel #1, or logical channel #2, or logical channel #1+logical channel #2, and at the same time meets other conditions for triggering the IDT process, then the terminal device triggers the IDT process.

3) After the terminal device enters the RRC_INACTIVE state, it moves to cell B. Since the terminal device cannot obtain the logical channel configuration (ie, logical channel configuration information) used by cell B to trigger IDT, cell B is not a configured cell, so the terminal device cannot be in cell B. Trigger the IDT process.

Manner 2: In the case that the first cell is not a configuration cell, it is determined whether to allow the triggering of the IDT process according to the triggering condition corresponding to the first cell.

With reference to FIG. 3 , FIG. 3 shows a flowchart of a data transmission method provided by an exemplary embodiment of the present application. The method can be applied to the terminal equipment shown in FIG. 1 , where the terminal equipment resides in the first cell. The method includes:

Step 310: In the case that the first cell is not a configuration cell, the terminal device determines whether to allow triggering of the IDT process according to at least one of the first trigger condition and the second trigger condition.

The first trigger condition is a trigger condition determined according to the logical channel configuration information corresponding to the configured cells in the adjacent candidate cells when the adjacent candidate cells include configuration cells; the adjacent candidate cells are adjacent cells of the first cell, and the first The terminal equipment that supports camping on the cell adopts the logical channel configuration information corresponding to the adjacent candidate cell.

The first cell corresponds to a plurality of adjacent cells (or called adjacent cells), and the adjacent cells are cells that overlap with the signal coverage of the first cell and have a handover relationship. The adjacent candidate cells are all or part of the adjacent cells corresponding to the first cell.

Exemplarily, the neighboring cells of the first cell include: cell #1, cell #2 and cell #3, where cell #2 and cell #3 are neighboring candidate cells of the first cell. The terminal equipment that supports camping in the first cell adopts the logical channel configuration information corresponding to cell #2 or cell #3, and the terminal equipment that does not support camping in the first cell adopts the logical channel configuration information corresponding to cell #1.

Optionally, the adjacent candidate cell corresponding to the first cell is predefined; or, the adjacent candidate cell corresponding to the first cell is indicated by a broadcast message of the first cell, and the terminal device, according to the broadcast message of the first cell, A neighboring candidate cell corresponding to the first cell is determined.

In a possible case, the adjacent candidate cells corresponding to the first cell do not include configuration cells. For example, the adjacent candidate cells of the first cell include: cell #1 and cell #2, and both cell #1 and cell #2 are not configured cells, and there is no logical channel configuration information, the terminal equipment cannot determine the first trigger condition, and also It cannot be determined whether the triggering of the IDT process is allowed according to the first triggering condition.

In another possible situation, the adjacent candidate cells corresponding to the first cell include configuration cells. For example, adjacent candidate cells of the first cell include: cell #1 and cell #2.

If cell #1 is a configuration cell, the terminal device determines the first trigger condition according to the logical channel configuration information corresponding to cell #1, and determines whether to allow triggering of the IDT process according to the first trigger condition.

If both cell #1 and cell #2 are configured cells, the terminal device determines the first trigger condition according to the logical channel configuration information corresponding to cell #1 (or the logical channel configuration information corresponding to cell #2), and according to the first trigger condition , to determine whether to allow triggering of the IDT process. The terminal device may randomly select logical channel configuration information corresponding to one of the cells belonging to the configuration cell, or may select logical channel configuration information corresponding to one of the cells according to certain rules, which is not limited in this embodiment of the present application.

Wherein, the above-mentioned second trigger condition is a condition different from the first trigger condition.

Optionally, the terminal device determines what trigger condition to use according to the indication of the indication information. 4, before step 310, it also includes step 320:

Step 320: Acquire indication information.

Wherein, the indication information includes: at least one of first indication information and second indication information. The first indication information is used to indicate the adjacent candidate cell corresponding to the first cell, and the second indication information is used to indicate whether the terminal device supports triggering the IDT process based on the second trigger condition.

Optionally, the indication information is carried in a broadcast message of the first cell.

That is to say, the terminal device will, according to the indication of the indication information, use the corresponding trigger condition to determine whether to trigger the IDT process.

1) When the indication information includes: first indication information; or, the indication information includes: first indication information and second indication information, and the second indication information indicates that the terminal device does not support triggering the IDT process based on the second trigger condition; Step 310 is alternatively implemented as step 311-1 or step 311-2:

Step 311-1: In the case that the first cell is not a configured cell and the neighboring candidate cells of the first cell include a configured cell, determine whether to allow the triggering of the IDT process according to the first trigger condition.

Step 311-2: In the case that the first cell is not a configured cell, and the adjacent candidate cells of the first cell do not include the configured cell, the triggering of the IDT procedure is not allowed.

The indication information includes first indication information, which indicates adjacent candidate cells of the first cell. When the indication information does not contain the second indication information, or the second indication information clearly indicates that the terminal device cannot trigger the IDT process based on the second trigger condition, it means that the terminal device cannot trigger the IDT process based on other conditions than the first trigger condition Process.

Optionally, the terminal device first determines whether there is a configuration cell in the adjacent candidate cells of the first cell, and if there is a configuration cell in the adjacent candidate cells, the first trigger condition is determined according to the configuration information of the logical channel corresponding to the configuration cell, according to The first trigger condition determines whether to allow triggering of the IDT process. In the case that there is no configured cell in the adjacent candidate cells, since the terminal device cannot trigger the IDT procedure based on other conditions than the first trigger condition, the IDT procedure is not allowed to be triggered.

2) In the case where the indication information includes: the first indication information and the second indication information, and the second indication information indicates that the terminal device supports triggering the IDT process based on the second trigger condition; step 310 is replaced by step 312-1 or step 312 -2:

Step 312-1: In the case that the first cell is not a configuration cell, and the adjacent candidate cells of the first cell include the configuration cell, determine whether to allow triggering of the IDT process according to the first trigger condition.

Step 312-2: In the case that the first cell is not a configuration cell, and the adjacent candidate cells of the first cell do not include configuration cells, determine whether to allow the triggering of the IDT process according to the second trigger condition.

The indication information includes first indication information, which indicates adjacent candidate cells of the first cell. When the indication information further includes second indication information, and the second indication information clearly indicates that the terminal device can trigger the IDT process based on the second trigger condition, it means that the terminal device can trigger the IDT process based on other conditions than the first trigger condition. .

Optionally, the terminal device first determines whether there is a configuration cell in the adjacent candidate cells of the first cell, and if there is a configuration cell in the adjacent candidate cells, the first trigger condition is determined according to the configuration information of the logical channel corresponding to the configuration cell, according to The first trigger condition determines whether to allow triggering of the IDT process. In the case that there is no configured cell in the adjacent candidate cells, the terminal device determines whether to allow the triggering of the IDT procedure according to the second trigger condition.

3) In the case where the indication information includes: second indication information, and the second indication information indicates that the terminal device supports triggering the IDT process based on the second trigger condition; step 310 is replaced by step 313:

Step 313: In the case that the first cell is not a configuration cell, according to the second trigger condition, determine whether to allow the triggering of the IDT process.

Since the indication information only includes the second indication information, and the second indication information clearly indicates that the terminal device can trigger the IDT process based on the second trigger condition, it means that the terminal device can trigger the IDT process based on other conditions than the first trigger condition Process.

Optionally, the terminal device directly determines whether to allow triggering of the IDT process according to the second trigger condition.

Optionally, in the above steps 311-1 and 312-1, the terminal device determines whether to allow the process of triggering the IDT process according to the first trigger condition, including: determining the target logical channel according to the logical channel configuration information corresponding to the configuration cell , the target logical channel is a logical channel that supports triggering the IDT process; when the data to be transmitted by the terminal device comes from the target logical channel, the IDT process is triggered; when the data to be transmitted by the terminal device does not come from the target logical channel, it is not triggered IDT process.

Exemplarily, the target logical channels include: logical channel #1 and logical channel #2, where logical channel #1 and logical channel #2 are logical channels that can trigger the IDT process. If the data to be transmitted by the terminal device comes from logical channel #1, or logical channel #2, or logical channel #1+logical channel #2, the IDT process is triggered. If the data to be transmitted by the terminal device comes from logical channel #4, the IDT process is not triggered.

Optionally, in the above steps 312-2 and 313, the terminal device determines whether to allow the triggering of the IDT process according to the second trigger condition, including: when the size of the data to be transmitted by the terminal device is smaller than the threshold, allowing the triggering of the IDT process. ; In the case that the size of the data to be transmitted by the terminal device is not less than the threshold, it is not allowed to trigger the IDT process.

The threshold is the maximum transport block size (Transport BlockSize, TBS) corresponding to the data to be transmitted.

Optionally, the threshold is carried in a broadcast message of the first cell. After receiving the threshold, the terminal device can determine the second trigger condition.

Exemplarily, the threshold is 2000 bits. The data volume of the data to be transmitted is 1800bits, and if the data size < threshold is satisfied, the terminal device triggers the IDT process. The data volume of the data to be transmitted is 2500 bits, if the data size < threshold is not met, the terminal device does not trigger the IDT process.

It can be understood that, the second trigger condition may also be a trigger condition in other forms, which is not limited in this embodiment of the present application.

In the embodiment corresponding to Mode 2, the first indication information in the indication information can be used to help the terminal device to determine the valid logical channel configuration, or the second indication information in the indication information can be used to determine the valid logical channel configuration according to other trigger conditions. Whether to trigger the IDT process.

3) After the terminal equipment enters the RRC_INACTIVE state, it moves to cell B, and cell B carries indication information in the broadcast message. a trigger condition), and/or whether to allow the terminal device to trigger the IDT process based on conditions other than the logical channel configuration information (ie, the second trigger condition).

A) Through the indication information, the terminal device determines that cell B does not allow the terminal device to use the logical channel configuration information of cell A as one of the conditions for triggering the IDT process, and cell B does not support other conditions based on the logical channel configuration information (that is, the second Triggering condition) triggers the IDT process (does not contain the indication information or the indication information clearly indicates that it is not supported), the terminal equipment cannot trigger the IDT process in cell B.

B) According to the indication information, the terminal device determines that cell B allows the terminal device to use the logical channel configuration information of cell A as one of the conditions for triggering the IDT process. When data arrives, the terminal device determines whether the IDT process can be triggered according to whether the current arriving data belongs to a logical channel that can trigger the IDT process.

For example, if the data to be transmitted comes from logical channel #1, or logical channel #2, or logical channel #1+logical channel #2, and meets other conditions for triggering the IDT process in cell B, the terminal triggers the IDT process in cell B.

C) According to the indication information, the terminal device determines that cell B does not allow the terminal device to use the logical channel configuration information of cell A as one of the conditions for triggering the IDT process, but cell B supports other conditions based on the logical channel configuration information (that is, the second trigger condition), the terminal device determines whether the second trigger condition is met, and if so, triggers the IDT process in cell B.

The second trigger condition may be based on threshold comparison, for example, the size of a protocol data unit (Protocol Data Unit, PDU) of the generated data is smaller than a threshold value broadcast by the network, or other conditions.

To sum up, with the method provided in this embodiment, when the first cell is the cell where the terminal device resides after cell reselection, the terminal device can determine whether to configure the terminal device according to the logical channel configuration ( Corresponding to the first trigger condition), the IDT process is triggered in the first cell, or the IDT process can be triggered in the first cell according to other trigger conditions.

Meanwhile, since the first trigger condition is related to the configuration of the logical channel, the IDT process can be triggered by a specific service by configuring the logical channel that supports the triggering of the IDT process.

It should be noted that, the foregoing method embodiments may be implemented separately, or may be implemented in combination, which is not limited in this application.

In each of the above embodiments, the steps performed by the terminal device can be independently implemented as a data transmission method on the terminal device side, and the steps performed by the network device can be independently implemented as a data transmission method on the network device side.

FIG. 5 shows a structural block diagram of a data transmission apparatus provided by an exemplary embodiment of the present application. The apparatus may be implemented as a terminal device, or may be implemented as a part of the terminal device. The device includes: a judgment module 501;

Judging module 501, configured to not allow triggering of an IDT process when the first cell is not a configuration cell;

Or, the judging module 501 is configured to determine whether to allow triggering of the IDT process according to a trigger condition corresponding to the first cell when the first cell is not a configuration cell;

In an optional embodiment, the judgment module 501 is configured to determine whether to allow the triggering of the IDT process according to at least one of the first trigger condition and the second trigger condition when the first cell is not a configured cell; wherein , the first trigger condition is a trigger condition determined according to the logical channel configuration information corresponding to the configured cell in the adjacent candidate cell when the adjacent candidate cell includes the configuration cell; the adjacent candidate cell is the adjacent cell of the first cell, and the first cell The terminal equipment supporting camping adopts the logical channel configuration information corresponding to the adjacent candidate cell; the second trigger condition is a condition different from the first trigger condition.

In an optional embodiment, the apparatus further includes: an obtaining module 502; the obtaining module 502 is configured to obtain indication information, where the indication information includes: at least one of the first indication information and the second indication information; wherein the first indication information The indication information is used to indicate a neighboring candidate cell corresponding to the first cell, and the second indication information is used to indicate whether the terminal device supports triggering the IDT process based on the second trigger condition.

In an optional embodiment, the indication information includes: first indication information; or, the indication information includes: first indication information and second indication information, and the second indication information indicates that the terminal device does not support the second trigger condition based on In the case of triggering the IDT process; the judging module 501 is configured to determine whether to allow the triggering of the IDT process according to the first trigger condition when the first cell is not a configured cell and the adjacent candidate cells of the first cell include the configured cell.

In an optional embodiment, the judging module 501 is configured to not allow triggering of the IDT process when the first cell is not a configured cell and the adjacent candidate cells of the first cell do not include the configured cell.

In an optional embodiment, when the indication information includes: first indication information and second indication information, and the second indication information indicates that the terminal device supports triggering the IDT process based on the second trigger condition; the judgment module 501, using In the case that the first cell is not a configuration cell and the adjacent candidate cells of the first cell include the configuration cell, it is determined whether to allow the triggering of the IDT process according to the first trigger condition.

In an optional embodiment, the judging module 501 is configured to determine, according to the second trigger condition, whether to allow triggering of the IDT when the first cell is not a configured cell and the adjacent candidate cells of the first cell do not include the configured cell Process.

In an optional embodiment, when the indication information includes: second indication information, and the second indication information indicates that the terminal device supports triggering the IDT process based on the second trigger condition; the judging module 501 is configured to: In the case where the cell is not configured, it is determined whether to allow the triggering of the IDT procedure according to the second triggering condition.

In an optional embodiment, the judging module 501 is configured to determine a target logical channel according to the logical channel configuration information corresponding to the configuration cell, and the target logical channel is a logical channel that supports triggering the IDT process; When the data to be transmitted by the device comes from the target logical channel, the IDT process is triggered; the judgment module 501 is configured to not trigger the IDT process when the data to be transmitted by the terminal device does not come from the target logical channel.

In an optional embodiment, the judging module 501 is used to allow triggering of the IDT process when the size of the data to be transmitted by the terminal device is less than a threshold; In the case of the threshold, triggering the IDT process is not allowed.

In an optional embodiment, the threshold is carried in a broadcast message of the first cell.

In an optional embodiment, the indication information is carried in a broadcast message of the first cell.

In an optional embodiment, the apparatus further includes: a detection module 503; and a detection module 503, configured to detect whether the first cell is a configuration cell.

In an optional embodiment, the first cell is a cell where the terminal equipment resides after cell reselection.

FIG. 6 shows a schematic structural diagram of a communication device (terminal device or network device) provided by an exemplary embodiment of the present application. The communication device includes: a processor 101 , a receiver 102 , a transmitter 103 , a memory 104 and a bus 105 .

The processor 101 includes one or more processing cores, and the processor 101 executes various functional applications and information processing by running software programs and modules.

The receiver 102 and the transmitter 103 may be implemented as a communication component, which may be a communication chip.

The memory 104 is connected to the processor 101 through the bus 105 .

The memory 104 may be configured to store at least one instruction, and the processor 101 may be configured to execute the at least one instruction, so as to implement various steps in the foregoing method embodiments.

Additionally, memory 104 may be implemented by any type or combination of volatile or non-volatile storage devices including, but not limited to, magnetic or optical disks, electrically erasable programmable Read Only Memory (Electrically-Erasable Programmable Read Only Memory, EEPROM), Erasable Programmable Read Only Memory (EPROM), Static Random Access Memory (SRAM), Read Only Memory (Read-Only Memory, ROM), magnetic memory, flash memory, programmable read-only memory (Programmable Read-Only Memory, PROM).

In an exemplary embodiment, a computer-readable storage medium is also provided, wherein the computer-readable storage medium stores at least one instruction, at least one piece of program, code set or instruction set, the at least one instruction, the At least one piece of program, the code set or the instruction set is loaded and executed by the processor to implement the data transmission method executed by the communication device provided by the above-mentioned various method embodiments.

In an exemplary embodiment, there is also provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium from which a processor of a computer device can The computer instruction is read from the storage medium, and the processor executes the computer instruction, so that the computer device executes the data transmission method described in the above aspects.

Those of ordinary skill in the art can understand that all or part of the steps of implementing the above embodiments can be completed by hardware, or can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium. The storage medium mentioned may be a read-only memory, a magnetic disk or an optical disk, etc.

The above descriptions are only optional embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection of the present application. within the range.

Claims

A data transmission method, characterized in that, when applied to a terminal device where the terminal device resides in a first cell, the method includes:

In the case that the first cell is not a configuration cell, it is not allowed to trigger the inactive data transmission IDT process;

or, in the case that the first cell is not the configured cell, determining whether to allow triggering of the IDT process according to a trigger condition corresponding to the first cell;

The configured cell is a cell where the terminal device resides when the terminal device obtains the logical channel configuration information, and the logical channel configuration information is used to configure a logical channel that supports triggering the IDT process.
The method according to claim 1, wherein when the first cell is not the configured cell, determining whether to allow the triggering of the IDT process according to a trigger condition corresponding to the first cell, include:

In the case that the first cell is not the configured cell, determining whether to allow triggering of the IDT process according to at least one of a first trigger condition and a second trigger condition;

Wherein, the first trigger condition is a trigger condition determined according to the logical channel configuration information corresponding to the configured cell in the adjacent candidate cells when the adjacent candidate cell includes the configured cell; the adjacent candidate cell The candidate cell is a neighboring cell of the first cell, and the terminal device that supports the camping on the first cell adopts the logical channel configuration information corresponding to the neighboring candidate cell; the second trigger condition is different from the Describe the condition of the first trigger condition.
The method according to claim 2, wherein the method further comprises:

Acquire indication information, where the indication information includes: at least one of first indication information and second indication information;

The first indication information is used to indicate the adjacent candidate cell corresponding to the first cell, and the second indication information is used to indicate whether the terminal device supports triggering the IDT based on the second trigger condition Process.
The method according to claim 3, wherein the indication information comprises: the first indication information; or, the indication information comprises: the first indication information and the second indication information, and The second indication information indicates that the terminal device does not support triggering the IDT process based on the second trigger condition;

The determining whether to allow the triggering of the IDT process according to at least one of a first trigger condition and a second trigger condition when the first cell is not the configured cell includes:

In the case that the first cell is not the configured cell and the neighboring candidate cells of the first cell include the configured cell, it is determined whether to allow triggering of the IDT process according to the first trigger condition.
The method according to claim 4, wherein the method further comprises:

In the case that the first cell is not the configured cell, and the neighboring candidate cells of the first cell do not include the configured cell, the IDT procedure is not allowed to be triggered.
The method according to claim 3, wherein the indication information comprises: the first indication information and the second indication information, and the second indication information indicates that the terminal device supports the When the second trigger condition triggers the IDT process;

The determining whether to allow the triggering of the IDT process according to at least one of a first trigger condition and a second trigger condition when the first cell is not the configured cell includes:

In the case that the first cell is not the configured cell and the neighboring candidate cells of the first cell include the configured cell, it is determined whether to allow triggering of the IDT process according to the first trigger condition.
The method according to claim 6, wherein the method further comprises:

In the case that the first cell is not the configured cell, and the neighboring candidate cells of the first cell do not include the configured cell, it is determined whether to allow triggering of the IDT process according to the second trigger condition.
The method according to claim 3, wherein the indication information comprises: the second indication information, and the second indication information indicates that the terminal device supports triggering the In the case of the IDT process;

The determining whether to allow triggering of the IDT process according to at least one of a first trigger condition and a second trigger condition when the first cell is not the configured cell, includes:

In the case that the first cell is not the configured cell, according to the second trigger condition, it is determined whether to allow the triggering of the IDT process.
The method according to claim 4 or 6, wherein the determining whether to allow the triggering of the IDT process according to the first trigger condition comprises:

determining a target logical channel according to the logical channel configuration information corresponding to the configured cell, where the target logical channel is a logical channel that supports triggering the IDT process;

Trigger the IDT process when the data to be transmitted by the terminal device comes from the target logical channel;

In the case that the data to be transmitted by the terminal device does not come from the target logical channel, the IDT process is not triggered.
The method according to claim 7 or 8, wherein the determining whether to allow the triggering of the IDT process according to the second trigger condition comprises:

In the case that the size of the data to be transmitted by the terminal device is smaller than the threshold, the IDT process is allowed to be triggered;

In the case that the size of the data to be transmitted by the terminal device is not less than the threshold, the IDT process is not allowed to be triggered.
The method of claim 10, wherein:

The threshold is carried in the broadcast message of the first cell.
The method according to any one of claims 3 to 11, wherein,

The indication information is carried in a broadcast message of the first cell.
The method according to any one of claims 1 to 12, wherein the method further comprises:

It is detected whether the first cell is the configured cell.
The method according to any one of claims 1 to 12, wherein,

The first cell is a cell where the terminal equipment resides after cell reselection occurs.
A data transmission apparatus, characterized in that, when applied to terminal equipment, the terminal equipment resides in a first cell, and the apparatus comprises: a judgment module;

The judging module is configured to not allow triggering of an inactive data transmission IDT process when the first cell is not a configured cell;

Or, the judging module is configured to determine whether to allow triggering of the IDT process according to a trigger condition corresponding to the first cell when the first cell is not the configured cell;

The configured cell is a cell where the terminal device resides when the terminal device obtains the logical channel configuration information, and the logical channel configuration information is used to configure a logical channel that supports triggering the IDT process.
The apparatus of claim 15, wherein:

the judging module, configured to determine whether to allow triggering of the IDT process according to at least one of a first trigger condition and a second trigger condition when the first cell is not the configured cell;

Wherein, the first trigger condition is a trigger condition determined according to the logical channel configuration information corresponding to the configured cell in the adjacent candidate cells when the adjacent candidate cell includes the configured cell; the adjacent candidate cell The candidate cell is a neighboring cell of the first cell, and the terminal device that supports the camping on the first cell adopts the logical channel configuration information corresponding to the neighboring candidate cell; the second trigger condition is different from the Describe the condition of the first trigger condition.
The apparatus according to claim 16, wherein the apparatus further comprises: an acquisition module;

The acquiring module is configured to acquire indication information, where the indication information includes: at least one of the first indication information and the second indication information;

The first indication information is used to indicate the adjacent candidate cell corresponding to the first cell, and the second indication information is used to indicate whether the terminal device supports triggering the IDT based on the second trigger condition Process.
The device according to claim 17, wherein the indication information comprises: the first indication information; or, the indication information comprises: the first indication information and the second indication information, and The second indication information indicates that the terminal device does not support triggering the IDT process based on the second trigger condition;

The determining module is configured to determine whether to allow triggering according to the first triggering condition when the first cell is not the configured cell and the neighboring candidate cells of the first cell include the configured cell the IDT process.
The apparatus of claim 18, wherein:

The judging module is configured to not allow triggering of the IDT process when the first cell is not the configured cell and adjacent candidate cells of the first cell do not include the configured cell.
The apparatus according to claim 17, wherein the indication information comprises: the first indication information and the second indication information, and the second indication information indicates that the terminal device supports the When the second trigger condition triggers the IDT process;

The determining module is configured to determine whether to allow triggering according to the first triggering condition when the first cell is not the configured cell and the neighboring candidate cells of the first cell include the configured cell the IDT process.
The apparatus of claim 20, wherein:

The judging module is configured to determine, according to the second trigger condition, whether to allow the first cell if the first cell is not the configured cell and the neighboring candidate cells of the first cell do not include the configured cell Trigger the IDT process.
The apparatus according to claim 17, wherein the indication information comprises: the second indication information, and the second indication information indicates that the terminal device supports triggering the In the case of the IDT process;

The judging module is configured to determine whether to allow the triggering of the IDT process according to the second triggering condition when the first cell is not the configured cell.
The device according to claim 18 or 20, characterized in that,

The judging module is used to determine a target logical channel according to the logical channel configuration information corresponding to the configuration cell, and the target logical channel is a logical channel that supports triggering the IDT process flow;

The judging module is configured to trigger the IDT process when the data to be transmitted by the terminal device comes from the target logical channel;

The judging module is configured to not trigger the IDT process when the data to be transmitted by the terminal device does not come from the target logical channel.
The device according to claim 21 or 22, characterized in that,

The judging module is configured to allow triggering of the IDT process when the size of the data to be transmitted by the terminal device is less than a threshold;

The judging module is configured to not allow triggering of the IDT process when the size of the data to be transmitted by the terminal device is not less than the threshold.
The apparatus of claim 24, wherein:

The threshold is carried in the broadcast message of the first cell.
The device according to any one of claims 17 to 25, characterized in that:

The indication information is carried in a broadcast message of the first cell.
The device according to any one of claims 15 to 26, wherein the device further comprises: a detection module;

The detection module is configured to detect whether the first cell is the configured cell.
The device according to any one of claims 15 to 26, characterized in that:

The first cell is a cell where the terminal equipment resides after cell reselection occurs.
A terminal device, characterized in that the terminal device includes:

processor;

a transceiver connected to the processor;

memory for storing executable instructions for the processor;

Wherein, the processor is configured to load and execute the executable instructions to implement the data transmission method according to any one of claims 1 to 14.
A computer-readable storage medium, wherein executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by a processor to realize the data according to any one of claims 1 to 14 transfer method.