WO2023207955A1

WO2023207955A1 - Data transmission method and apparatus, and terminal

Info

Publication number: WO2023207955A1
Application number: PCT/CN2023/090530
Authority: WO
Inventors: 黄学艳; 刘亮
Original assignee: 中国移动通信有限公司研究院; 中国移动通信集团有限公司
Priority date: 2022-04-25
Filing date: 2023-04-25
Publication date: 2023-11-02
Also published as: CN117015046A

Abstract

The present application provides a data transmission method and apparatus, and a terminal. The method comprises: when downlink data and uplink data arrive at the same time, a terminal determining a data transmission mode on the basis of a data transmission resource; and transmitting the downlink data and the uplink data according to the data transmission mode, wherein the data transmission resource comprises at least one of a configured grant (CG) resource, a semi-persistent scheduling (SPS) resource, and a random access resource.

Description

Data transmission method, device and terminal

Cross-references to related applications

This application claims priority to Chinese Patent Application No. 202210440863.5 filed in China on April 25, 2022, the entire content of which is incorporated herein by reference.

Technical field

The present disclosure relates to the field of communication technology, and in particular, to a data transmission method, device and terminal.

Background technique

In related technologies, the terminal reports uplink data or uplink information through small data transmission based on random access or small data transmission based on configuration authorization (Configured Grant, CG). Since the transmission of uplink data and the transmission of downlink data are relatively independent, while the terminal has downlink data services, the terminal may have uplink services arriving; similarly, while the terminal is transmitting uplink data, the terminal is still under Radio Resource Control (Radio Resource Control). , RRC) inactive state, downlink data may arrive. Therefore, after the introduction of downlink transmission, the uplink data transmission method in the related technology is no longer applicable.

Contents of the invention

The purpose of this disclosure is to provide a data transmission method, device and terminal, which solves the problem that the data transmission method in the related art is not suitable for the situation where uplink data and downlink data arrive at the same time.

To achieve the above objectives, embodiments of the present disclosure provide a data transmission method, including:

When downlink data and uplink data arrive at the same time, the terminal determines the data transmission mode based on the data transmission resources;

Transmit the downlink data and the uplink data according to the data transmission mode;

Wherein, the data transmission resources include: at least one of configuration authorization CG resources, semi-persistent scheduling (Semi-Persistent Scheduling, SPS) resources and random access resources.

Optionally, determining the data transmission mode based on data transmission resources includes:

According to the data transmission resources that meet the preset conditions and/or the data transmission resources indicated by the network side device, source to determine the data transmission mode.

Optionally, the data transmission resource is indicated through a paging message.

Optionally, the data transmission mode includes:

Mode 1: Use CG resources to transmit uplink data and use SPS resources to receive downlink data;

Mode 2: Use CG resources to transmit uplink data and use random access resources to receive downlink data;

Mode 3: Use SPS resources to receive downlink data and use random access resources to transmit uplink data;

Mode 4: Use random access resources to transmit uplink data and downlink data.

Optionally, determining the data transmission mode based on data transmission resources includes at least one of the following:

If both the CG resources and the SPS resources meet the preset conditions, the data transmission mode is determined to be mode one;

If both the CG resource and the random access resource meet the preset conditions, the data transmission mode is determined to be mode two;

If the CG resources meet the preset conditions and the network side device indicates to use random access resources to receive the downlink data, then determine that the data transmission mode is mode two;

If the SPS resource meets the preset condition and the CG resource does not meet the preset condition, then the data transmission mode is determined to be mode three;

If the network side device instructs to use SPS resources to receive the downlink data, and the CG resources do not meet the preset conditions, determine that the data transmission mode is mode three;

If neither the CG resource nor the SPS resource meets the preset condition, the data transmission mode is determined to be mode four.

Optionally, the preset conditions include at least one of the following:

The network side device configures the data transmission resource for the terminal;

The data transmission resources are available;

The data amount that the data transmission resource can carry is greater than the data amount of the data packet to be transmitted;

The data transmission efficiency of the data transmission resource reaches the first threshold.

Optionally, when the data transmission mode is mode two, transmitting the downlink data and the uplink data according to the data transmission mode includes:

The CG resource transmits uplink data, and the uplink data carries an RRC recovery request message, The RRC recovery request message is used to instruct the terminal to transmit the uplink data and the downlink data transmission requirements;

Determine the Cell-Radio Network Temporary Identifier (C-RNTI) based on the random access process;

Based on the C-RNTI, the downlink data is received within the downlink reception window.

Optionally, when the data transmission mode is mode three, transmitting the downlink data and the uplink data according to the data transmission mode includes:

Receive downlink data on the SPS resource;

If the first random access resource among the random access resources satisfies the preset condition, use the first random access resource to transmit the uplink data;

In the case where the first random access resource among the random access resources does not meet the preset condition, the physical uplink shared channel indicated by the downlink control information (Downlink Control Information, DCI) corresponding to the SPS resource The uplink data or buffer status report (Buffer Status Report, BSR) is transmitted in (Physical Uplink Shared Channel, PUSCH), and the BSR is used to indicate the data volume of the uplink data.

Optionally, when the data transmission mode is mode four, transmitting the downlink data and the uplink data according to the data transmission mode includes:

Obtain general random access parameters configured by the network side device, where the general random access parameters include random access resources;

Use the random access resource indicated by the general random access parameter to transmit the uplink data and the downlink data;

Wherein, the general random access parameter is configured by the network side device for the situation where the uplink data and the downlink data arrive at the same time.

Initiate the random access process;

During the execution of the random access procedure, use the random access resource to transmit the uplink data and/or the downlink data;

Wherein, the first message of the random access procedure carries an RRC recovery request message, and the The RRC recovery request message includes a first parameter, and the first parameter is used to indicate that the uplink data and the downlink data arrive at the same time.

To achieve the above objectives, embodiments of the present disclosure provide a data transmission device, including:

The first determination module is used to determine the data transmission mode based on data transmission resources when downlink data and uplink data arrive at the same time;

A first transmission module, configured to transmit the downlink data and the uplink data according to the data transmission mode;

Wherein, the data transmission resources include: at least one of configuration authorization CG resources, semi-persistent scheduling SPS resources and random access resources.

Optionally, the first determination module is specifically used to:

The data transmission mode is determined according to data transmission resources that meet preset conditions and/or data transmission resources indicated by the network side device.

Optionally, the data transmission mode includes:

Mode 4: Use random access resources to transmit uplink data and downlink data.

Optionally, the first determining module is used to perform at least one of the following operations:

Optionally, the preset conditions include at least one of the following:

The data transmission resources are available;

Optionally, when the data transmission mode is mode two, the first transmission module is specifically used to:

The CG resource transmits uplink data, and the uplink data carries an RRC recovery request message. The RRC recovery request message is used to instruct the terminal to transmit the uplink data and the transmission requirements of the downlink data;

Determine the cell wireless network temporary identity C-RNTI based on the random access process;

Optionally, when the data transmission mode is mode three, the first transmission module is specifically used to:

Receive downlink data on the SPS resource;

When the first random access resource among the random access resources does not meet the preset condition, the uplink is transmitted on the physical uplink shared channel PUSCH indicated by the downlink control information DCI corresponding to the SPS resource. Data or cache status report BSR, the BSR is used to indicate the data amount of the uplink data.

Optionally, when the data transmission mode is mode four, the first transmission module is specifically used to:

Initiate the random access process;

Wherein, the first message of the random access procedure carries an RRC recovery request message, and the RRC recovery request message includes a first parameter, and the first parameter is used to indicate that the uplink data and the downlink data arrive at the same time. .

To achieve the above objectives, embodiments of the present disclosure provide a terminal, including: a transceiver and a processor;

The processor is configured to: determine the data transmission mode based on data transmission resources when downlink data and uplink data arrive at the same time;

The transceiver is configured to: transmit the downlink data and the uplink data according to the data transmission mode;

Optionally, the processor determines the data transmission mode based on data transmission resources, including:

Optionally, the data transmission mode includes:

Mode 4: Use random access resources to transmit uplink data and downlink data.

Optionally, the processor determines a data transmission mode based on data transmission resources, including at least one of the following:

Optionally, the preset conditions include at least one of the following:

The data transmission resources are available;

Optionally, when the data transmission mode is mode two, the transceiver transmits the downlink data and the uplink data according to the data transmission mode, including:

Optionally, when the data transmission mode is mode three, the transceiver transmits the downlink data and the uplink data according to the data transmission mode, including:

Receive downlink data on the SPS resource;

Optionally, when the data transmission mode is mode four, the transceiver transmits the downlink data and the uplink data according to the data transmission mode, including:

Initiate the random access process;

To achieve the above objectives, embodiments of the present disclosure provide a terminal, including: a transceiver, a processor, a memory, and a program or instructions stored on the memory and executable on the processor; wherein, the processing The above data transmission method is implemented when the device executes the program or instruction.

In order to achieve the above object, embodiments of the present disclosure provide a readable storage medium on which a program or instructions are stored. When the program or instructions are executed by a processor, the steps of the above data transmission method are implemented.

The beneficial effects of the above technical solutions of the present disclosure are as follows:

In the embodiment of the present disclosure, when uplink and downlink data arrive at the same time, the terminal selects adapted data based on the currently configured data transmission resources, including CG resources, SPS resources and random access resources. The transmission mode transmits uplink and downlink data, and jointly processes uplink data transmission and downlink data transmission, which can reduce the data transmission delay of the terminal, reduce the signaling overhead and transmission resource overhead of data transmission, and improve transmission efficiency.

Description of drawings

Figure 1 is one of the schematic flow diagrams of a data transmission method according to an embodiment of the present disclosure;

Figure 2 is one of the schematic diagrams of the downlink data transmission process according to an embodiment of the present disclosure;

Figure 3 is a second schematic diagram of the downlink data transmission process according to an embodiment of the present disclosure;

Figure 4 is a second schematic flowchart of a data transmission method according to an embodiment of the present disclosure;

Figure 5 is a schematic structural diagram of a data transmission device according to an embodiment of the present disclosure;

Figure 6 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present disclosure clearer, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

It will be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present disclosure. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present disclosure, it should be understood that the size of the sequence numbers of the following processes does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not be implemented in the present disclosure. The implementation of the examples does not constitute any limitations.

Additionally, the terms "system" and "network" are often used interchangeably in this article.

In the embodiments provided by the present disclosure, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B only based on A. B can also be determined based on A and/or other information.

As shown in Figure 1, an embodiment of the present disclosure provides a data transmission method, including:

Step 101: When downlink data and uplink data arrive at the same time, the terminal Transmit resources and determine the data transmission mode. Wherein, the data transmission resources include: at least one of configuration authorization CG resources, semi-persistent scheduling SPS resources and random access resources.

The simultaneous arrival of the downlink data and the uplink data may mean that the downlink data and the uplink data arrive at the same time; or, after receiving the indication information of the arrival of the downlink data, the terminal has not yet responded to the arrival of the downlink data. When responding to the indication information, the terminal receives the indication information of the arrival of the uplink data; or, when receiving the indication information of the arrival of the uplink data and the terminal has not yet responded to the indication information of the arrival of the uplink data, it receives the indication information of the arrival of the downlink data. instructions.

The uplink data may refer to uplink data packets, and the downlink data may refer to downlink data packets.

For example: the terminal receives a paging message sent by the network side device. The paging message indicates the arrival of downlink data. The terminal responds to the paging message (for example: the terminal sends an uplink preamble, or the terminal sends message A (MsgA), or Physical Uplink Shared Channel (PUSCH)), if uplink data arrives, it can be considered that the downlink data and uplink data arrive at the same time. As shown in Figure 2, during the downlink data transmission process based on Random Access (RA), when the terminal receives the paging message, uplink data arrives; as shown in Figure 3, it is based on SPS. During the downlink data transmission process, when the terminal receives the paging message, there is a schematic diagram of the arrival of uplink data.

Optionally, the terminal is in the RRC inactive state. As shown in Figure 2, after receiving the paging message, the terminal in the RRC inactive state has uplink data (UL data) before performing the RA process. ) arrives, data transmission is performed between the terminal and the base station (gNB) based on the RA process. Among them, the terminal sends an RRC resume message (RRC resume message) during the RA process; the base station sends downlink data (DL data) to the terminal; the terminal transmits uplink data or sends a BSR. As shown in Figure 3, after the terminal in the RRC inactive state receives the paging message and before receiving downlink data, UL data arrives. After that, the terminal receives the DL data transmitted by the base station based on SPS; the terminal sends UL data.

It should be noted that the uplink data and downlink data in the embodiments of the present disclosure may be small data transmission (SDT).

The data transmission resources include: at least one of configuration authorization CG resources, semi-persistent scheduling SPS resources and random access resources. The network side device can configure multiple transmission resources for the terminal. The terminal determines the uplink data and the downlink data based on the currently configured data transmission resources. transmission mode. The data transmission mode may indicate transmission resources used to transmit the uplink data and the downlink data.

Step 102: Transmit the downlink data and the uplink data according to the data transmission mode;

In this embodiment, the data transmission mode is determined based on the data transmission resources, so the data transmission mode matches the current scenario in which uplink and downlink data arrive at the same time and the current transmission resource configuration.

Optionally, taking the uplink and downlink data in the embodiment of the present disclosure as small packet data as an example, if the RRC inactive terminal receives a paging indication that the downlink small data packet arrives, and the uplink data satisfies that the packet size is less than the configuration threshold (that is, the uplink data is also is small packet data), the terminal does not independently perform uplink and downlink small packet data transmission. For uplink data transmission and downlink data transmission, the terminal can inform the network side device of data transmission requirements through RRC recovery (resume) messages or establish a transmission channel with the network side device to achieve joint processing of uplink and downlink small packet data, which can reduce transmission resources. Decision conditions are processed in parallel through uplink and downlink data to improve transmission efficiency.

In the embodiment of the present disclosure, when uplink and downlink data arrive at the same time, the terminal selects an adapted data transmission mode to transmit the uplink and downlink data based on the currently configured data transmission resources, including CG resources, SPS resources and random access resources. Joint processing of data transmission and downlink data transmission can reduce the data transmission delay of the terminal, reduce the signaling overhead and transmission resource overhead of data transmission, and improve transmission efficiency.

As an optional embodiment, determining the data transmission mode based on data transmission resources includes:

Optionally, the preset conditions include at least one of the following:

1) The network side device configures the data transmission resource for the terminal;

2) The data transmission resources are available; the data transmission resources being available may include: the data transmission resources are legal, the data transmission resources can support small packet data transmission, the data transmission resources are valid, etc.

3) The data amount that the data transmission resource can carry is greater than the data amount of the data packet to be transmitted; if the data transmission resource can carry a small amount of data and cannot carry the data packet to be transmitted, it can be A BSR is sent on this data transmission resource to indicate the size of the data to be transmitted.

4) The data transmission efficiency of the data transmission resource reaches the first threshold. If the terminal uses the data transmission resource to transmit data with low efficiency, the terminal may choose not to use the data transmission resource even if the data transmission resource is configured. .

In this embodiment, the terminal can determine the transmission resources to be used for uplink and downlink transmission based on whether the data transmission resources meet the preset conditions. For example, the network side device is configured with CG resources and the CG resources are available. , the terminal uses the CG resource for uplink data transmission; when the network side device is configured with SPS resources and the SPS resources are legally available, and the SPS resources are sufficient to carry downlink data, the terminal uses the SPS resource to receive downlink data.

Optionally, the data transmission resource is indicated through a paging message. That is, the network side device indicates, through a paging message, the data transmission resources used to transmit the downlink data and/or the uplink data.

In this embodiment, when sending a paging message to the terminal, the network side device may indicate the transmission resources for transmitting uplink and downlink data in the paging message. For example: in the paging message, the network side device instructs the terminal to receive downlink data based on random access; or in the paging message, the network side device instructs the terminal to receive downlink data based on SPS. Receive downlink data.

It should be noted that the network side device may also instruct the terminal to use data transmission resources to transmit the downlink data and/or the uplink data by sending other information or separate indication signaling.

Optionally, the data transmission mode includes:

Mode 4: Use random access resources to transmit uplink data and downlink data.

Taking the uplink data and the downlink data as small packet data as an example, the data transmission mode is as shown in Table 1:

Table 1: Data transmission mode (Mode)

It can be seen from the above Table 1 that under Mode1, the terminal performs uplink data transmission based on CG-SDT resources and downlink data transmission based on SPS-SDT resources; under Mode2, the terminal performs uplink data transmission based on CG-SDT resources and RA-SDT resources for downlink data transmission; in Mode3, the terminal performs uplink data transmission based on RA-SDT resources and downlink data transmission based on SPS-SDT resources; in Mode4, the terminal performs uplink data transmission and downlink data transmission based on RA-SDT resources.

As an optional embodiment, determining the data transmission mode based on data transmission resources includes at least one of the following:

(1) If both the CG resources and SPS resources meet the preset conditions, determine that the data transmission mode is mode one;

In this embodiment, for example, both the uplink and downlink data are small packet data. The uplink transmission satisfies the CG-SDT condition, and the downlink transmission satisfies the SPS-SDT condition. That is, both CG resources and SPS resources meet the preset conditions for transmitting small packet data. Then the terminal uses Mode 1 is used for data transmission, wherein the mode 1 is: using CG-SDT resources to transmit uplink data; using SPS-SDT resources to receive downlink data.

(2) If the CG resource and the random access resource meet the preset condition, determine that the data transmission mode is mode two.

In this embodiment, if the CG resources meet the preset conditions, the CG resources are used for uplink data transmission. If the SPS resources do not meet the preset conditions and the terminal receives a paging message indicating that downlink data has arrived, the terminal can Determine whether the random access resource satisfies the preset condition. If the random access resource satisfies the preset condition, receive downlink data based on random access.

(3) If the CG resource meets the preset condition and the network side device instructs to use random access resources to receive the downlink data, determine that the data transmission mode is mode two.

In this embodiment, if the CG resources meet the preset conditions, the CG resources are used for uplink data transmission. The SPS resources do not meet the preset conditions. The terminal receives a paging message indicating that downlink data has arrived, and the network side device The paging message instructs the terminal to use the random access method to receive downlink data, and then the terminal receives downlink data based on the random access method.

(4) If the SPS resource meets the preset condition, the CG resource does not meet the preset condition. condition, it is determined that the data transmission mode is mode three.

In this embodiment, when the terminal receives a paging message indicating that downlink data has arrived, the terminal can determine whether the SPS resources meet the preset conditions. If the SPS resources meet the preset conditions, based on the SPS large method Downlink data is not received. If the terminal determines that the CG resource cannot be used for uplink data reception, the terminal needs to perform uplink data transmission based on random access.

(5) If the network side device instructs to use SPS resources to receive the downlink data, and the CG resources do not meet the preset conditions, determine that the data transmission mode is mode three.

In this embodiment, the terminal receives a paging message, which indicates the arrival of downlink data, and the network side device instructs the terminal to use the SPS-based method to receive downlink data through the paging message. If the terminal determines that the CG resource cannot be used for uplink data reception, the terminal needs to perform uplink data transmission based on random access.

(6) If neither the CG resource nor the SPS resource meets the preset condition, determine that the data transmission mode is mode four.

In this embodiment, if neither the CG resource nor the SPS resource meets the preset condition, that is, neither the CG resource nor the SPS resource is available, the terminal performs uplink data transmission based on the random access process, and receive downlink data.

The following describes the data transmission processes for the above-mentioned different data transmission modes respectively.

Taking the uplink data and downlink data as small packet data as an example, if the terminal meets the CG-SDT conditions and the terminal receives paging instructions to indicate the arrival of downlink data, the terminal determines to use a random access-based method to receive downlink data; or the network instructs the terminal Use a method based on random access to receive downlink data;

Specifically, the terminal transmits uplink data on the CG-SDT resource, which carries the RRC resume request message;

If the terminal does not send msg1 or MsgA during the random access process, the terminal terminates the RA-DL-SDT initialization process;

After the terminal uses CG-SDT resources to send uplink data, it opens the downlink receiving window and uses C-RNTI to monitor the downlink data;

After receiving the data from the CG-SDT resource, the network side device sends downlink data.

Receive downlink data on the SPS resource;

In this embodiment, taking the uplink data and downlink data as small packet data as an example, the terminal receives a paging indication that the downlink data has arrived, and the terminal determines to use the SPS-based method to receive the downlink data; or the network side device instructs the terminal to use the SPS-based method to receive the downlink data. Downlink data reception; and the terminal determines that CG resources cannot be used, then:

The terminal uses SPS resources to receive downlink data;

The terminal determines whether there are legal 2-step RA-UL-SDT resources; if so, the terminal initiates the uplink small packet transmission process; if there are no 2-step RA-UL-SDT resources, the terminal starts receiving downlink data and performs physical downlink control Uplink data is transmitted or BSR is transmitted in the PUSCH indicated by the DCI corresponding to the channel (Physical downlink control channel, PDCCH), which is the scheduling DCI corresponding to the SPS resource.

Among them, if the PUSCH indicated by the PDCCH (DCI) can carry uplink data, the uplink data is directly transmitted on the PUSCH; if the PUSCH is not enough to carry the uplink data, the BSR is transmitted on the PUSCH to indicate the uplink data to be transmitted. the size of.

Solution 1: Obtain the general random access parameters configured by the network side device, where the general random access parameters include random access resources;

In this embodiment, the network side device configures general random access parameters for the terminal. The general random access parameters are configured for the situation where uplink data and downlink data arrive at the same time, that is, the general random access parameters are for the uplink data. Exclusive parameters for the case where the downlink data arrives at the same time. The terminal uses the access random access parameters to perform a random access process and send uplink and downlink data. When the network side device receives the universal random access resource, it can learn the execution scenario in which the uplink and downlink data of the terminal arrive at the same time. Both 2-step random access and 4-step random access use this common random access parameter. When the terminal meets the requirements of triggering RA-based uplink data and downlink data transmission, the terminal uses the above random access resources to initiate a random access process.

Wherein, the general random access parameters may include: synchronization signal block (Synchronization Signal and PBCH block, SSB), RA resources, etc., the RA resources include preamble, random access channel (Random Access Channel, RACH), etc. ) opportunity.

Option 2: Initiate a random access process;

In this embodiment, the terminal uses uplink or downlink random access resources to initiate random access, and the first message may be MSGA for 2-step random access or msg3 for 4-step random access. In 2-step random access MSGA or 4-step random access msg3, the RRC message indicates that the uplink and downlink small data packets trigger RRC resume request; the recovery reason in the RRC resume request message Add a parameter (that is, the first parameter) in (Resume Cause) to indicate that uplink data and downlink data arrive at the same time.

In the second solution, the setting position of the first parameter is as follows:

Optionally, in the embodiment of the present disclosure, taking the uplink data and the downlink data as small packet data as an example, the execution process of the terminal determining the data transmission mode based on the data transmission resources is as shown in Figure 4:

The terminal determines and selects RA-SDT or CG-SDT; if CG-SDT resources are available and SPS-SDT resources are available, use mode one; if CG-SDT resources are available and RA-SDT resources are available, use mode two, the terminal uses The CG-SDT resource sends uplink data, carries the RRC recovery request, cancels the RA-SDT DL process, and receives the PDCCH; if the CG-SDT resource is unavailable, the RA-SDT resource is available, and the SPS-SDT resource is available, use mode three, Perform a 2-step random access process, initiate 2-step RA-SDT, or perform a 4-step random access process, receive SPS, transmit uplink data or send BSR in the PUSCH indicated by PDCCH (DCI); if CG-SDT resources are not available If the SPS-SDT resource is unavailable and the RA-SDT resource is available, use mode four to execute the RA-SDT DL process and determine specific RA resources for uplink data and downlink data respectively.

In the embodiment of the present disclosure, when uplink and downlink data arrive at the same time, the terminal Data transmission resources, including CG resources, SPS resources and random access resources, select the appropriate data transmission mode to transmit uplink and downlink data, and jointly process uplink data transmission and downlink data transmission, which can reduce the data transmission delay of the terminal and reduce the data transmission cost. Transmission signaling overhead and transmission resource overhead improve transmission efficiency.

As shown in Figure 5, an embodiment of the present disclosure also provides a data transmission device 500, which includes:

The first determination module 510 is used to determine the data transmission mode based on the data transmission resources when downlink data and uplink data arrive at the same time;

The first transmission module 520 is used to transmit the downlink data and the uplink data according to the data transmission mode;

Optionally, the first determination module is specifically used to:

Optionally, the data transmission mode includes:

Mode 4: Use random access resources to transmit uplink data and downlink data.

Optionally, the preset conditions include at least one of the following:

The data transmission resources are available;

Receive downlink data on the SPS resource;

Initiate the random access process;

It should be noted here that the device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above method embodiments, and can achieve the same technical effects. The same features as those in the method embodiments in this embodiment will no longer be discussed here. Some of them and their beneficial effects will be described in detail.

As shown in Figure 6, a terminal 600 according to an embodiment of the present disclosure includes a processor 610 and a transceiver 620, wherein,

The processor 610 is configured to: when downlink data and uplink data arrive at the same time, determine the data transmission mode based on data transmission resources;

The transceiver 620 is configured to: transmit the downlink data and the uplink data according to the data transmission mode;

Optionally, the data transmission mode includes:

Mode 4: Use random access resources to transmit uplink data and downlink data.

Optionally, the preset conditions include at least one of the following:

The data transmission resources are available;

Receive downlink data on the SPS resource;

Initiate the random access process;

It should be noted that the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effects. The parts in this embodiment that are the same as those in the method embodiments will no longer be discussed here. and beneficial effects are described in detail.

A terminal according to another embodiment of the present disclosure includes a transceiver, a processor, a memory and a device stored in the A program or instruction on the memory that can be run on the processor; when the processor executes the program or instruction, the above data transmission method is implemented.

A readable storage medium according to an embodiment of the present disclosure has a program or instructions stored thereon. When the program or instructions are executed by a processor, the steps in the data transmission method as described above are implemented and the same technical effect can be achieved. To avoid repetition, they will not be repeated here.

Wherein, the processor is the processor in the electronic device described in the above embodiment. The readable storage media includes computer-readable storage media, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disks or optical disks, etc.

It should be further noted that the electronic devices described in this specification include but are not limited to smartphones, tablet computers, etc., and many of the functional components described are called modules to more specifically emphasize the independence of their implementation.

In embodiments of the present disclosure, modules may be implemented in software so as to be executed by various types of processors. For example, an identified module of executable code may include one or more physical or logical blocks of computer instructions, which may be structured, for example, as an object, procedure, or function. Nonetheless, the executable code of an identified module need not be physically located together, but may include different instructions stored on different bits that, when logically combined, constitute the module and implement the provisions of the module Purpose.

In fact, an executable code module can be a single instruction or many instructions, and can even be distributed over multiple different code segments, distributed among different programs, and distributed across multiple memory devices. Likewise, operational data may be identified within modules and may be implemented in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations (including on different storage devices), and may exist, at least in part, solely as electronic signals on a system or network.

When the module can be implemented using software, taking into account the level of relevant hardware technology, those skilled in the art can build corresponding hardware circuits to implement the corresponding functions without considering the cost. The hardware circuits include conventional Very Large Scale Integration Circuit (VLSI) circuits or gate arrays and related semiconductors such as logic chips, transistors, or other discrete components. Modules can also be configured using programmable hardware Equipment, such as field programmable gate arrays, programmable array logic, programmable logic devices, etc.

The above exemplary embodiments are described with reference to the accompanying drawings. Many different forms and embodiments are possible without departing from the spirit and teachings of the disclosure. Therefore, the disclosure should not be construed as the exemplary embodiments set forth herein. limits. Rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will convey the scope of the disclosure to those skilled in the art. In the drawings, component sizes and relative sizes may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will be further understood that the terms "comprising" and/or "including" when used in this specification mean that the presence of stated features, integers, steps, operations, components and/or components does not exclude one or more other The existence or addition of features, integers, steps, operations, components, components and/or families thereof. Unless otherwise indicated, when stated, a range of values includes the upper and lower limits of the range and any subranges therebetween.

The above are the preferred embodiments of the present disclosure. It should be noted that for those of ordinary skill in the art, several improvements and modifications can be made without departing from the principles described in the present disclosure. These improvements and modifications can also be made. should be regarded as the scope of protection of this disclosure.

Claims

A data transmission method including:

When downlink data and uplink data arrive at the same time, the terminal determines the data transmission mode based on the data transmission resources;

Transmit the downlink data and the uplink data according to the data transmission mode;

Wherein, the data transmission resources include: at least one of configuration authorization CG resources, semi-persistent scheduling SPS resources and random access resources.
The method according to claim 1, wherein determining the data transmission mode based on data transmission resources includes:

The data transmission mode is determined according to data transmission resources that meet preset conditions and/or data transmission resources indicated by the network side device.
The method according to claim 1 or 2, wherein the data transmission resource is indicated by a paging message.
The method of claim 1, wherein the data transmission mode includes:

Mode 1: Use CG resources to transmit uplink data and use SPS resources to receive downlink data;

Mode 2: Use CG resources to transmit uplink data and use random access resources to receive downlink data;

Mode 3: Use SPS resources to receive downlink data and use random access resources to transmit uplink data;

Mode 4: Use random access resources to transmit uplink data and downlink data.
The method according to claim 4, wherein determining the data transmission mode based on data transmission resources includes at least one of the following:

If both the CG resources and the SPS resources meet the preset conditions, the data transmission mode is determined to be mode one;

If both the CG resource and the random access resource meet the preset conditions, the data transmission mode is determined to be mode two;

If the CG resources meet the preset conditions and the network side device indicates to use random access resources to receive the downlink data, then determine that the data transmission mode is mode two;

If the SPS resource meets the preset condition and the CG resource does not meet the preset condition, then the data transmission mode is determined to be mode three;

If the network side device instructs to use SPS resources to receive the downlink data and the CG resources do not meet the preset conditions, then determine that the data transmission mode is mode three;

If neither the CG resource nor the SPS resource meets the preset condition, the data transmission mode is determined to be mode four.
The method according to claim 2 or 5, wherein the preset conditions include at least one of the following:

The network side device configures the data transmission resource for the terminal;

The data transmission resources are available;

The data amount that the data transmission resource can carry is greater than the data amount of the data packet to be transmitted;

The data transmission efficiency of the data transmission resource reaches the first threshold.
The method according to claim 5, wherein, when the data transmission mode is mode two, transmitting the downlink data and the uplink data according to the data transmission mode includes:

The CG resource transmits uplink data, and the uplink data carries an RRC recovery request message. The RRC recovery request message is used to instruct the terminal to transmit the uplink data and the transmission requirements of the downlink data;

Determine the cell wireless network temporary identity C-RNTI based on the random access process;

Based on the C-RNTI, the downlink data is received within the downlink reception window.
The method according to claim 5, wherein, when the data transmission mode is mode three, transmitting the downlink data and the uplink data according to the data transmission mode includes:

Receive downlink data on the SPS resource;

If the first random access resource among the random access resources satisfies the preset condition, use the first random access resource to transmit the uplink data;

When the first random access resource among the random access resources does not meet the preset condition, the uplink is transmitted on the physical uplink shared channel PUSCH indicated by the downlink control information DCI corresponding to the SPS resource. Data or cache status report BSR, the BSR is used to indicate the data amount of the uplink data.
The method according to claim 5, wherein the data transmission mode is mode four. In this case, transmitting the downlink data and the uplink data according to the data transmission mode includes:

Obtain general random access parameters configured by the network side device, where the general random access parameters include random access resources;

Use the random access resource indicated by the general random access parameter to transmit the uplink data and the downlink data;

Wherein, the general random access parameter is configured by the network side device for the situation where the uplink data and the downlink data arrive at the same time.
The method according to claim 5, wherein, when the data transmission mode is mode four, transmitting the downlink data and the uplink data according to the data transmission mode includes:

Initiate the random access process;

During the execution of the random access procedure, use the random access resource to transmit the uplink data and/or the downlink data;

Wherein, the first message of the random access procedure carries an RRC recovery request message, and the RRC recovery request message includes a first parameter, and the first parameter is used to indicate that the uplink data and the downlink data arrive at the same time. .
A data transmission device including:

The first determination module is used to determine the data transmission mode based on data transmission resources when downlink data and uplink data arrive at the same time;

A first transmission module, configured to transmit the downlink data and the uplink data according to the data transmission mode;

Wherein, the data transmission resources include: at least one of configuration authorization CG resources, semi-persistent scheduling SPS resources and random access resources.
A terminal including: a transceiver and a processor;

The processor is configured to: determine the data transmission mode based on data transmission resources when downlink data and uplink data arrive at the same time;

The transceiver is configured to: transmit the downlink data and the uplink data according to the data transmission mode;

Wherein, the data transmission resources include: at least one of configuration authorization CG resources, semi-persistent scheduling SPS resources and random access resources.
A terminal, including: a transceiver, a processor, a memory, and a program or instructions stored on the memory and executable on the processor; when the processor executes the program or instructions, it implements claim 1 -The data transmission method described in any one of 10.
A readable storage medium on which a program or instructions are stored. When the program or instructions are executed by a processor, the steps of the data transmission method according to any one of claims 1-10 are implemented.