CN114828087A - Data transmission method, terminal, network side equipment and computer readable storage medium - Google Patents

Abstract

The embodiment of the application provides a data transmission method, a terminal, network side equipment and a computer readable storage medium, and relates to the technical field of communication. The method is executed by a terminal and comprises the following steps: when the transmission of the uplink data fails, starting first equipment for timing; and when the timing of the first equipment meets the condition, executing data transmission operation. The embodiment of the application provides an effective solution implemented by a terminal device for the situation that the service reliability is reduced due to the timeout of the survivor time and the reliability requirement of service transmission cannot be met.

Description

Data transmission method, terminal, network side device, and computer-readable storage medium

technical field

The present application relates to the field of communication technologies, and in particular, the present application relates to a data transmission method, a terminal, a network-side device, and a computer-readable storage medium.

Background technique

In the Industrial Internet, in addition to traditional parameters such as transmission interval, message size, and delay, the service requirement parameters of some communication services also introduce survival time, which is used to characterize the availability of services.

When an error occurs in the data transmission, start the survival time. If the subsequent data can be transmitted correctly during the validity period of the survival time, the service transmission is considered to be available. If the survival time expires and the data still cannot be transmitted correctly, it is considered that the source device and the target device are not transmitted correctly. The communication link between them is unavailable.

After the survival time expires, the channel is considered unreliable. In order to avoid the impact on service transmission caused by the survival time timeout, the current solutions are all implemented on network-side devices, and there is no corresponding solution for terminal-side devices.

SUMMARY OF THE INVENTION

The present application provides a data transmission method, a terminal, a network-side device and a computer-readable storage medium, which can solve the problem that the terminal cannot meet the QoS performance of service transmission quality of service by improving service reliability when it finds that uplink data transmission fails. The technical solution is as follows:

In a first aspect, a data transmission method is provided, executed by a terminal, and the method includes:

When the uplink data transmission fails, start the first device for timing;

When the timing of the first device satisfies the condition, a data transmission operation is performed.

In a possible implementation manner, the first device includes: a first timer or a first counter, and the timing satisfying condition of the first device includes:

The timing of the first timer exceeds a predetermined duration; or,

The count of the first counter reaches a predetermined count value.

In yet another possible implementation manner, the predetermined duration or the predetermined count value is determined by a time-to-live corresponding to the first logical channel group, and the time-to-live is corresponding to the first logical channel group by the network-side device The bearer configuration is obtained.

In yet another possible implementation manner, the situation that the uplink data transmission fails includes at least one of the following:

When the terminal is ready to perform uplink UL data transmission, the data packet is de-prioritized;

When the terminal is about to perform the UL data transmission, a listen-before-talk LBT failure occurs;

During the process of the terminal performing the UL data transmission, the transmission of the data packet is interrupted;

After the UL data is transmitted, the retransmission scheduling information for the data packet sent by the network side device is received;

After the UL data is transmitted, receiving a feedback message sent by the network side device indicating that the data packet transmission fails;

The configuration authorization retransmission timer CGRT of the terminal expires.

In yet another possible implementation, the performing a data transmission operation includes at least one of the following:

Retransmit the first data packet with a preset number of repetitions, where the preset number of repetitions is greater than or equal to 2;

retransmitting the first data packet on the configured transmission resource in a first modulation and coding scheme, where the MCS value of the first modulation and coding scheme is lower than the MCS value of the original modulation and coding scheme for transmitting the first data packet;

The first data packet is transmitted in a replication mode, wherein the replication mode includes: an aggregate carrier CA replication mode or a dual-connection DC replication mode;

The first data packet is transmitted on a second logical channel, wherein the priority of the second logical channel is higher than the priority of the first logical channel, and both the first logical channel and the second logical channel are the first A logical channel in a logical channel group.

In yet another possible implementation, the first data packet includes any one of the following data packets:

packets that have been deprioritized;

Transmission of interrupted packets;

Packets not transmitted due to LBT failure;

The network-side device feeds back data packets that fail to transmit;

After the CGRT times out, the data packet that the network side device feedbacks the successful transmission is not received;

Newly transmitted packets.

In yet another possible implementation, if the data transmission operation is to retransmit the first data packet on the configured transmission resource in the first modulation and coding manner, the method further includes:

When the transmission of the first data packet is successful, subsequent uplink data packets are transmitted on the configured transmission resources in the first modulation and coding manner.

In another possible implementation manner, the predetermined duration of the first timer is configured by a network-side device, and the first timer is configured by the network-side device for the first logical channel group of the terminal, so the first logical channel group includes two or more logical channels;

The first counter counts the data packets that fail to be transmitted in the first logical channel group, the predetermined count value of the first counter is configured by the network side device, and the first counter is the network side device The device is configured for the first logical channel group of the terminal.

In yet another possible implementation, the method further includes:

When the terminal performs data transmission successfully, the first device is triggered to shut down.

In yet another possible implementation manner, the situation that the terminal successfully performs data transmission includes at least one of the following:

Receive a feedback message sent by the network side device indicating successful data transmission;

receiving new transmission scheduling information for the first logical channel group sent by the network-side device;

The configuration of the terminal authorizes the CGT timer to expire.

In yet another possible implementation, the method further includes:

Reporting indication information to the network side device, where the indication information is used to indicate that the first logical channel is unreliable.

In yet another possible implementation manner, after starting the first device for timing, the method further includes:

start the second device for timing;

The reporting of the indication information to the network side device includes:

When the timing of the second device satisfies the condition, the indication information is reported to the network side device.

In a second aspect, a data transmission method is provided, which is performed by a network side device, and the method includes:

determining the configuration parameters of the first device;

The first device is configured for the first logical channel group of the terminal, so that when the terminal fails to perform data transmission, the first device for timing is started, wherein the first logical channel group includes two or more a logical channel.

In a possible implementation manner, the determining the configuration parameters of the first device includes:

configuring a time-to-live for the bearer corresponding to the first logical channel group;

The configuration parameters of the first device are determined according to the time-to-live.

In yet another possible implementation manner, the configuring the first device for the first logical channel group of the terminal includes:

The configuration parameters of the first device are configured to the terminal through an RRC reconfiguration message.

In yet another possible implementation, it also includes:

Receive indication information reported by the terminal, where the indication information is used to indicate that the first logical channel is unreliable.

In a third aspect, a terminal device is provided, including:

memory for storing computer programs;

a transceiver for sending and receiving data under the control of the processor;

A processor for reading the computer program in the memory and performing the following operations:

When the uplink data transmission fails, start the first device for timing;

When the timing of the first device satisfies the condition, a data transmission operation is performed.

In one possible implementation,

The first device includes: a first timer or a first counter, and the timing satisfying conditions of the first device include:

The timing of the first timer exceeds a predetermined duration; or,

The count of the first counter reaches a predetermined count value.

In another possible implementation manner, the processor is further configured to trigger the first device to shut down when the terminal performs data transmission successfully.

In another possible implementation manner, the transceiver is specifically configured to report indication information to the network side device, where the indication information is used to indicate that the first logical channel is unreliable.

In a fourth aspect, a network side device is provided, including:

memory for storing computer programs;

a transceiver for sending and receiving data under the control of the processor;

A processor for reading the computer program in the memory and performing the following operations:

determining the configuration parameters of the first device;

The first device is configured for the first logical channel group of the terminal, so that when the terminal fails to perform data transmission, the first device for timing is started, wherein the first logical channel group includes two or more a logical channel.

In a possible implementation manner, the processor is further configured to configure a time-to-live for a bearer corresponding to the first logical channel group; and determine a configuration parameter of the first device according to the time-to-live.

In another possible implementation manner, the transceiver is specifically configured to receive indication information reported by the terminal, where the indication information is used to indicate that the first logical channel is unreliable.

In a fifth aspect, a terminal device is provided, including:

The execution unit is configured to start the first device for timing when the uplink data transmission fails; when the timing of the first device satisfies the condition, execute the data transmission operation.

In a sixth aspect, a network side device is provided, including:

a determining unit for determining configuration parameters of the first device;

a configuration unit, configured to configure the first device for a first logical channel group of a terminal, so that when the terminal fails to perform data transmission, the first device for timing is started, wherein the first logical channel group Two or more logical channels are included.

In a seventh aspect, a processor-readable storage medium is provided, where a computer program is stored in the processor-readable storage medium, and the computer program is used to cause the processor to execute the first aspect or the second aspect of the claim. method described.

The beneficial effects brought by the technical solution provided by the application are:

Aiming at the situation that the service reliability is reduced due to the survival time timeout, and the reliability requirements of service transmission cannot be met, an effective solution implemented by the terminal device is provided. When the terminal finds that the uplink data transmission fails, the A device, and when the timing of the first device satisfies the condition, performs a data transmission operation, so as to improve the reliability of service transmission, thereby meeting the requirements of service transmission quality of service (QoS) performance.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments of the present application.

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

FIG. 2 is a schematic flowchart of a data transmission method according to an embodiment of the present application;

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

FIG. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a network side device according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a network side device according to an embodiment of the present application.

Detailed ways

The following describes in detail the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, but not to be construed as limiting the present invention.

It will be understood by those skilled in the art that the singular forms "a", "an", "the" and "the" as used herein can include the plural forms as well, unless expressly stated otherwise. It should be further understood that the word "comprising" used in the specification of this application refers to the presence of stated features, integers, steps, operations, elements and/or components, but does not preclude the presence or addition of one or more other features, Integers, steps, operations, elements, components and/or groups thereof. It will be understood that when we refer to an element as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Furthermore, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combination of one or more of the associated listed items.

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.

The technical solutions provided in the embodiments of the present application can be applied to various systems, especially 5G systems. For example, applicable systems may be global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) general packet radio Service (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, advanced long-term Evolution (long term evolution advanced, LTE-A) system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G New Radio (New Radio, NR) system, etc. . These various systems include terminal equipment and network side equipment. The system may also include a core network part, such as an evolved packet system (Evloved Packet System, EPS), a 5G system (5GS), and the like.

First of all, some terms involved in this application are introduced and explained:

The terminal device involved in the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem. In different systems, the names of the terminal equipment may be different. For example, in the 5G system, the terminal equipment may be called user equipment (User Equipment, UE). Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via a radio access network (Radio Access Network, RAN). "telephone) and computers with mobile terminal equipment, eg portable, pocket-sized, hand-held, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants, PDA) and other devices. A wireless terminal device may also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, A remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), and a user device (user device) are not limited in the embodiments of the present application.

The network side device involved in the embodiment of the present application may be a base station, and the base station may include a plurality of cells providing services for the terminal. Depending on the specific application, the base station may also be called an access point, or may be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or other names. The network-side device can be used to exchange received air frames with Internet Protocol (IP) packets, and act as a router between the wireless terminal device and the rest of the access network, where the rest of the access network can include Internet Protocol (IP) communication network. The network side equipment can also coordinate the attribute management of the air interface. For example, the network-side device involved in the embodiments of the present application may be a network-side device (Base TransceiverStation, a Global System for Mobile Communications, GSM) or a Code Division Multiple Access (Code Division Multiple Access, CDMA). BTS), or a network-side device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolved network in a long term evolution (long term evolution, LTE) system A side device (evolutional Node B, eNB or e-NodeB), a 5G base station (gNB) in a 5G network architecture (next generation system), or a Home evolved Node B (HeNB), a relay node (relay node) ), a home base station (femto), a pico base station (pico), etc., which are not limited in the embodiments of the present application. In some network structures, the network-side device may include a centralized unit (centralized unit, CU) node and a distributed unit (distributed unit, DU) node, and the centralized unit and the distributed unit may also be geographically separated.

One or more antennas can be used between the network side device and the terminal device to perform multiple input multiple output (Multi Input Multi Output, MIMO) transmission, and the MIMO transmission can be single user MIMO (Single User MIMO, SU-MIMO) or multi-user MIMO (Multiple User MIMO, MU-MIMO). According to the form and number of root antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or diversity transmission, precoding transmission, or beamforming transmission.

In the Industrial Internet, in addition to traditional parameters such as transmission interval, message size, and delay, the service requirement parameters of some communication services also introduce survival time, which is used to characterize the availability of services.

In the process of data transmission, when an error occurs in data transmission, that is, when a data packet is lost, the survival time is activated, and the subsequent data packets can be transmitted correctly within the survival time, and the service transmission is considered to be available. However, if the data packet is not transmitted correctly within the survival time, and the data packet still cannot be transmitted correctly until the survival time expires, the communication link between the source device and the target device is considered to be unavailable. The talk time is longer than the survival time. For example, if the call service is dropped at a certain moment during the conversation between the two parties, if the communication can be resumed within a few seconds (the survival time) and the two parties can continue the content of the call, then the call service is considered reliable; if If the communication has not been resumed after 1 minute (the survival time has expired), and the two parties cannot continue the call, the call service is considered unreliable.

In view of the above problems, the current solutions are all implemented on the network side, and there is no specific solution on how to operate on the UE side.

That is to say, 3GPP has not yet introduced an effective solution for terminal equipment to reduce service reliability due to survival time timeout and cannot meet the reliability requirements of service transmission. That is, when the terminal finds that more than N uplink UL data packets are lost, and the time of packet loss in UL data transmission is greater than the survival time (survival time timeout), the service reliability is reduced and cannot meet the reliability requirements of service transmission, and cannot be restored. Reliability of business transmission.

In view of this, the data transmission method, apparatus, electronic device, and computer-readable storage medium provided by the present application aim to solve the above technical problems in the prior art.

Specifically, the embodiments of the present application provide a data transmission method: for the situation that service reliability is reduced due to survival time timeout, and the reliability requirements of service transmission cannot be met, an effective solution implemented by terminal equipment is provided. When it is found that the uplink data transmission fails, the first device used for timing is activated, and when the timing of the first device meets the conditions, the data transmission operation is performed, so as to improve the reliability of service transmission and meet the service quality of service transmission. QoS performance requirements.

The technical solutions of the present application and how the technical solutions of the present application solve the above-mentioned technical problems will be described in detail below with specific examples. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below with reference to the accompanying drawings.

An embodiment of the present application provides a data transmission method 10. As shown in FIG. 1, the method is executed by a terminal, and the method includes:

110. When the uplink data transmission fails, start the first device for timing;

120. When the timing of the first device satisfies the condition, perform a data transmission operation.

Specifically, in this embodiment, the first device includes: a first timer or a first counter, and when the uplink data transmission fails, the first timer is started for timing, or the first counter is started and the first timer Packets that fail to transmit in the logical channel are counted.

Wherein, the condition that the timing of the first device satisfies the condition includes: the timing of the first timer exceeds a predetermined duration; or, the count of the first counter reaches a predetermined count value.

Optionally, the predetermined duration or the predetermined count value is determined by the survival time corresponding to the first logical channel group. The time-to-live is configured by the network side device for the bearer corresponding to the first logical channel group.

The predetermined duration of the first timer is configured by the network side device, the first timer is configured by the network side device for the first logical channel group of the terminal, and the first logical channel group includes two or multiple logical channels; the first counter counts the data packets that fail to transmit in the first logical channel group, the predetermined count value of the first counter is configured by the network side device, the first The counter is configured by the network side device for the first logical channel group of the terminal.

That is to say, in this embodiment, a first timer or a first counter may be configured for the logical channel used by the terminal to transmit uplink data through the network side device. When the first timer times out or the first counter reaches the maximum count value , the terminal performs the data transmission operation, so as to solve the problem that the terminal cannot satisfy the QoS performance of the service transmission quality of service by improving the reliability when it finds that the current transmission cannot satisfy the reliability of the data transmission.

It should be noted that, since the transmission time of each data packet in the data transmission process can be predicted, when the number of failed data packets in the first logical channel group reaches the maximum count value of the counter, the The packet loss time of uplink data transmission is greater than the survival time, the logical channel does not meet the reliability requirements, and the terminal needs to perform data transmission operations to improve and restore the reliability of service transmission in time.

In this embodiment, the predetermined duration or the predetermined count value is determined by the time-to-live corresponding to the first logical channel group, and the time-to-live is determined by the network-side device for the time corresponding to the first logical channel group The bearer configuration is obtained.

That is to say, when the network side device configures the length of the first timer or the maximum count value of the first counter for the first logical channel group, it needs to be determined based on the time-to-live configured for the bearer corresponding to the first logical channel group, For example, the length of the first timer can be 1/n of the survival time, n represents the number of TCP retransmissions, and the maximum number of retransmissions of the data packet in the length of the first timer can be the first timer The ratio of the length of the receiver to the HARQ RTT delay.

It should be understood that, in this embodiment, the network side device may configure the first timer or the first counter for a group of logical channels of the terminal in advance, and configure the duration of the first timer based on the lifetime of the bearer corresponding to the group of logical channels Or the maximum count value of the first counter. Send the configuration information to the terminal through the RRC reconfiguration message, and after receiving the message, the terminal obtains the first timer or the first counter configured by the network side device for its first logical channel group, and the duration of the first timer or The maximum count value of the first counter. When the uplink data transmission of the terminal fails, the first timer or the first counter is started.

In some embodiments, the method 10 may further include:

130. Trigger the first device to shut down when the terminal performs data transmission successfully.

Wherein, the situation that the terminal successfully performs data transmission includes at least one of the following:

The terminal receives a feedback message sent by the network side device indicating that the data packet is successfully transmitted;

The terminal receives the new transmission scheduling information for the first logical channel group sent by the network side device;

The configuration authorization CGT timer configured by the terminal expires.

That is to say, in this embodiment, during the running of the first timer or the first counter, if the terminal receives a feedback message sent by the network side device indicating that the data packet transmission is successful, or the network side device sends a feedback message for the first The new transmission scheduling information of a logical channel group, or the configuration authorization CGT timer configured by the network side device for the terminal expires, indicating that the data packet is successfully transmitted, the reliability of the channel has been restored, and subsequent data packets can be transmitted. Stop the timing of the first timer/count of the first counter and set it to an initialization state, for example, set the first timer to 0, or reset the timing of the first timer/count of the first counter to zero.

In other embodiments, the situation that the uplink data transmission fails includes at least one of the following:

When the terminal is ready to perform uplink UL data transmission, the data packet is de-prioritized;

When the terminal is about to perform the UL data transmission, a listen-before-talk LBT failure occurs;

During the process of the terminal performing the UL data transmission, the transmission of the data packet is interrupted;

After the UL data is transmitted, the retransmission scheduling information for the data packet sent by the network side device is received;

After the UL data is transmitted, receiving a feedback message sent by the network side device indicating that the data packet transmission fails;

The configuration authorization retransmission timer CGRT of the terminal expires.

That is to say, in this embodiment, if the terminal is ready to perform uplink data transmission in the first logical channel group, the priority of the data packet is lowered, or a listen-before-talk LBT failure occurs; or, the terminal performs uplink data transmission. During the data transmission process, the transmission of the data packet is interrupted; or, after the uplink data transmission, when the terminal finds that the data packet needs to be retransmitted, for example: when the following conditions occur, it is determined that the data packet needs to be retransmitted, and the data packet sent by the network side device is received. The retransmission scheduling information or the feedback message indicating the failure of data packet transmission, or the configuration authorization retransmission timer CGRT configured by the network side device for the terminal expires, when the terminal has one or more of the above conditions, the terminal can start The first timer or the first counter performs a timing operation.

Among them, before the terminal performs uplink data transmission on the unlicensed frequency band, it needs to perform Listen Before Talk (LBT) on the unlicensed frequency band to detect whether the unlicensed frequency band is free. Licensed frequency bands to communicate with base stations. Therefore, LBT fails, that is, the unlicensed frequency band is occupied and cannot provide corresponding resources for data transmission.

The function of the timer CGRT is that when the terminal sends data, the CGRT is turned on, and when the CGRT times out, the terminal performs data retransmission.

In other embodiments, performing a data transfer operation includes at least one of the following:

Retransmit the first data packet with a preset number of repetitions, where the preset number of repetitions is greater than or equal to 2;

retransmitting the first data packet on the configured transmission resource in a first modulation and coding scheme, where the MCS value of the first modulation and coding scheme is lower than the MCS value of the original modulation and coding scheme for transmitting the first data packet;

The first data packet is transmitted in a replication mode, wherein the replication mode includes: an aggregate carrier CA replication mode or a dual-connection DC replication mode;

The first data packet is transmitted on a second logical channel, wherein the priority of the second logical channel is higher than the priority of the first logical channel, and both the first logical channel and the second logical channel are the first A logical channel in a logical channel group.

In this embodiment, in the case that data transmission fails in the first logical channel, the priority of the first logical channel can be increased, that is, the priority of the first logical channel group is selected higher than that of the first logical channel. Level 2 logical channel to ensure successful data transfer. That is to say, the first logical channel is a logical channel used for initial transmission of a data packet that fails to transmit, and a second logical channel with a higher priority than the first logical channel is used when the data packet is retransmitted.

That is to say, in this embodiment, when the transmission failure of the data packet causes the service to be unreliable, the number of repetitions during the retransmission of the data packet can be increased, or the MSC value of the data packet transmission can be reduced, or the transmission in a duplication manner can be used. (For example: CA/DC transmission) data packets, or by increasing the priority of the first logical channel, to increase the probability of successful data packet transmission, so as to restore the reliability of service transmission as soon as possible.

It should be noted that the number of repetitions (eg, the number of repetitions), the MSC value, and the like may be configured by the network side device. In this embodiment, the network-side device may transmit the configuration information to the terminal in advance, and when the terminal satisfies the first condition, the first timer or the first counter is started; When the count of a counter reaches a predetermined count value, use the configuration to perform data transmission; or, when the network-side device learns that the count of the first timer of the terminal exceeds a predetermined time period, or the count of the first counter reaches a predetermined count value, it sends a message to the terminal. The configuration is issued so that the terminal can use the configuration to perform data transmission.

Specifically, in this embodiment, when the first data packet is retransmitted with a preset number of repetitions, the first data packet may be the count of the first timer exceeding a predetermined time period, or the count of the first counter After reaching the predetermined count value, the first data to be sent by the terminal on the first logical channel.

That is to say, the first data packet can be retransmitted on the first logical channel, and the number of times of transmission of the data packet during the retransmission process is at least 2 times, that is, the transmission is repeated at least 2 times at different times, so as to speed up the recovery of the data packet. Reliability of upstream services.

Wherein, if the data transmission operation is to retransmit the first data packet with a preset number of repetitions, it includes:

For different times of transmission, different hybrid automatic repeat request HARQ processes are used to transmit the first data packet, wherein different HARQ processes are configured with corresponding redundancy version information.

For example, if the preset number of repetitions is 2, the HARQ process used in the first retransmission of the first data packet is different from the HARQ process used in the second retransmission of the first data packet, and the first retransmission of the first The redundancy version information of the data packet is different from the redundancy version information of the second retransmission of the first data packet.

It should be noted that when the first data packet is retransmitted, the content of each transmission is not necessarily the same, and corresponding redundancy version information is configured for different HARQ processes, which is convenient for network side equipment to perform HARQ combining.

In another case, the data packet may be transmitted in a replicated manner (eg, CA/DC transmission), that is to say, the data packet is transmitted to at least two nodes at the same time, so as to improve the probability of successful transmission of the data packet.

In this embodiment, the first data packet for performing the data transmission operation includes any one of the following data packets:

packets that have been deprioritized;

Transmission of interrupted packets;

Packets not transmitted due to LBT failure;

The network-side device feeds back data packets that fail to transmit;

After the CGRT times out, the data packet that the network side device feedbacks the successful transmission is not received;

Newly transmitted packets.

Wherein, the newly transmitted data packet may be acquired from the multiplexing entity cache, or may be acquired from the MSG3 (message 3) cache.

That is to say, the data packet performing data transmission may be a data packet with a reduced priority, or a data packet whose transmission is interrupted, or a data packet that is not transmitted due to an LBT failure, or a data packet whose transmission fails as reported by the network side device, or , after the CGRT times out, the network side device does not receive the feedback of the successful transmission of the data packet.

For example, MCS originally used a higher modulation and coding method, such as 16QAM, and the coding efficiency was high. When the data transmission fails and causes a timeout, a lower-order MCS can be used, that is, a lower modulation and coding method, such as QPSK , the first data is retransmitted on the configured resources, thereby restoring the transmission reliability of the uplink service.

It should be noted that after adopting a lower-order MCS, the original time-frequency domain resources will not be able to carry the size of the above data, so the network side will reconfigure the size of the retransmission resources while configuring the MCS.

In some embodiments, if the data transmission operation is to retransmit the first data packet on the configured transmission resource in the first modulation and coding manner, the method 10 may further include:

140. When the first data packet is successfully transmitted, transmit a subsequent uplink data packet on the configured transmission resource in the first modulation and coding manner.

That is to say, in this embodiment, after the above-mentioned data packets are successfully transmitted on the corresponding resources by using the reduced MSC, the subsequent data packets can be continuously transmitted on the corresponding resources by using the reduced MSC.

In yet other embodiments, the method 10 further includes:

150. Report indication information to the network side device, where the indication information is used to indicate that the first logical channel is unreliable.

Specifically, in this embodiment, after starting the first device for timing, the method 10 further includes:

160. Start the second device for timing;

Then 150 can specifically include:

When the timing of the second device satisfies the condition, the indication information is reported to the network side device.

That is to say, in this embodiment, after the first timer or the first counter is started, the second timer or the second counter is also started, wherein the length of the second timer is greater than the length of the first timer, The maximum count value of the second counter is greater than the maximum count value of the first counter. When the second timer times out or the second counter reaches the maximum count value, the terminal may also report indication information to the network side device to indicate that the first logical channel is not The reliability is satisfied, wherein the indication information may carry information that the second timer has expired, or that the second counter has reached the maximum count value.

The embodiment of the present application also provides a data transmission method 20. As shown in FIG. 2, the method is performed by a network side device, and the method may include:

210. Determine a configuration parameter of the first device;

220. Configure the first device for the first logical channel group of the terminal, so that when the terminal fails to perform data transmission, start the first device for timing, where the first logical channel group includes two or multiple logical channels.

Specifically, in this embodiment, the configuration parameters of the first device may be configured to the terminal through an RRC reconfiguration message, for example, configuring a predetermined duration of the first timer or a predetermined count value of the first counter.

In some embodiments, step 210 may include:

211. Configure a time-to-live for the bearer corresponding to the first logical channel group;

212. Determine a configuration parameter of the first device according to the time-to-live.

That is to say, in this embodiment, the network-side device may configure a time-to-live for the bearer corresponding to the first logical channel group of the terminal, and determine the duration of configuring the first timer for the first logical channel group based on the time-to-live, or , and configure the maximum count value of the first counter for the first logical channel group.

In other embodiments, the method 20 may further include:

240. Receive indication information reported by the terminal, where the indication information is used to indicate that the first logical channel is unreliable.

That is to say, in this embodiment, the network-side device may receive the indication information reported by the terminal that carries the information that the second timer has expired or that the second counter has reached the maximum count value, thereby learning the first logical channel group Reliability is not satisfied. The length of the second timer is greater than the length of the first timer, and the maximum count value of the second counter is greater than the maximum count value of the first counter.

The technical solution of a data transmission method provided by an embodiment of the present application is described above with reference to FIG. 1 and FIG. 2 respectively from the perspectives of a terminal and a network side device. The following describes in detail a data transmission method provided by an embodiment of the present application with reference to FIG. 3 . Implementation of the transfer method.

As shown in FIG. 3 , it is a data/signaling interaction process diagram of a data transmission method 30 provided in an embodiment of the present application. The data transmission method 30 includes the following steps:

310. The network side device configures the first logical channel group of the terminal UE with the length of the first timer as a predetermined duration, or configures the maximum count value of the first counter to a predetermined count value.

Specifically, in this embodiment, the network side device may configure the length of the first timer or the maximum count value of the first counter to the UE through an RRC reconfiguration message.

The length of the first timer or the maximum count value of the first counter is determined by the time-to-live configured by the network side device for the bearer corresponding to the first logical channel group.

320. The terminal starts the first timer or the first counter when at least one of the following first conditions is satisfied.

Among them, the first condition is:

When the terminal is ready to perform uplink UL data transmission, the data packet is de-prioritized;

When the terminal is about to perform the UL data transmission, a listen-before-talk LBT failure occurs;

During the process of the terminal performing the UL data transmission, the transmission of the data packet is interrupted;

After the UL data is transmitted, the retransmission scheduling information for the data packet sent by the network side device is received;

After the UL data is transmitted, receiving a feedback message sent by the network side device indicating that the data packet transmission fails;

The configuration authorization retransmission timer CGRT of the terminal expires.

That is to say, when one or more of the above situations occur in the terminal, the terminal may start the first timer or the first counter to perform a timing operation.

330. When the first timer times out or the count value of the first counter reaches the maximum count value, the terminal performs one or more of the following operations to transmit data:

Increase the number of repetitions, such as the number of repetitions, and the number of repetition transmissions is configured in advance by the network side;

Reduce the MCS and adjust the time domain/frequency domain extension resources. The resources and MCS are configured in advance by the network side;

Automatic activation of repeated transfers, such as CA/DC transfers;

The logical channel priority is automatically increased.

Specifically, in this embodiment, when the first timer times out or the count value of the first counter reaches the maximum count value, the terminal retransmits the first data packet with a repetition number greater than or equal to 2, or The reduced MCS value retransmits the first data packet on the configured transmission resources.

In another embodiment, when the first timer times out or the count value of the first counter reaches the maximum count value, the terminal may use the CA/DC duplication mode to perform UL data transmission. Among them, the CA/DC duplication transmission architecture is configured in advance by the network side, and the UE performs duplication transmission on the data to be sent subsequently at the PDCP layer, and delivers the repeatedly transmitted packets to two carriers (CA duplication) or two nodes (DC duplication) duplication), for example: two base stations.

In another embodiment, when the first timer times out or the count value of the first counter reaches the maximum count value, the terminal can increase the priority of the first logical channel, for example, it can select from the first logical channel group The second logical channel has a higher priority than the first logical channel, and when the next data is generated, the data of the first logical channel is preferentially multiplexed. When sending data, if the uplink grant conflicts, the second logical channel data with higher priority is sent preferentially.

Wherein, the first data packet for performing data transmission may include any of the following data packets:

packets that have been deprioritized;

Transmission of interrupted packets;

Packets not transmitted due to LBT failure;

The network-side device feeds back data packets that fail to transmit;

After the CGRT times out, the data packet that the network side device feedbacks the successful transmission is not received;

Newly transmitted packets.

340. During the running period of the first timer or the first counter, when the terminal satisfies at least one of the following second conditions, stop the first timer/first counter or set the first timer The counter/first counter is reset to zero.

Among them, the second condition includes:

receiving a feedback message sent by the network side device indicating successful data transmission;

receiving new transmission scheduling information for the first logical channel group sent by the network side device;

The configuration of the terminal authorizes the CGT timer to expire.

350. When the second timer times out or the count value of the second counter reaches the maximum count value, the terminal reports indication information indicating that the second timer times out or the count value of the second counter reaches the maximum count value to the network side device.

360. The network side device receives the indication information reported by the terminal.

In the above embodiment, the first timer or the first counter related to the survival time is set for the uplink service logical channel of the terminal, and when the uplink data transmission fails, the first timer or the first counter is started, and when the first When the timer expires or the first counter reaches the maximum count value, a data transmission operation is performed to improve and restore the reliability of uplink service transmission, so as to meet the requirements of service transmission quality of service (QoS) performance.

Based on the same inventive concept, an embodiment of the present application provides a terminal device. As shown in FIG. 4 , the terminal device includes: a memory 401, a transceiver 402, and a processor 403, wherein,

memory 401 for storing computer programs;

a transceiver 402, configured to send and receive data under the control of the processor 403;

The processor 403 is configured to read the computer program in the memory 401 and perform the following operations:

When the uplink data transmission fails, start the first device for timing;

When the timing of the first device satisfies the condition, a data transmission operation is performed.

In some embodiments, the first device includes: a first timer or a first counter, and the timing satisfying condition of the first device includes:

The timing of the first timer exceeds a predetermined duration; or,

The count of the first counter reaches a predetermined count value.

In other embodiments, the processor is further configured to trigger the first device to shut down when the terminal performs data transmission successfully.

Specifically, in this embodiment, the situation in which the terminal successfully performs data transmission includes at least one of the following:

receiving, by the terminal, a feedback message sent by the network side device indicating that the data packet is successfully transmitted;

receiving, by the terminal, new transmission scheduling information for the first logical channel group sent by the network-side device;

The configuration of the terminal authorizes the CGT timer to expire.

In other embodiments, the predetermined duration or the predetermined count value is determined by a time-to-live corresponding to the first logical channel group, and the time-to-live is determined by the network-side device for the time corresponding to the first logical channel The bearer configuration is obtained.

In other embodiments, the situation that the uplink data transmission fails includes at least one of the following:

When the terminal is ready to perform uplink UL data transmission, the data packet is de-prioritized;

When the terminal is about to perform the UL data transmission, a listen-before-talk LBT failure occurs;

During the process of the terminal performing the UL data transmission, the transmission of the data packet is interrupted;

After the UL data is transmitted, the retransmission scheduling information for the data packet sent by the network side device is received;

After the UL data is transmitted, receiving a feedback message sent by the network side device indicating that the data packet transmission fails;

The configuration authorization retransmission timer CGRT of the terminal expires.

In other embodiments, performing a data transfer operation includes at least one of the following:

Retransmit the first data packet with a preset number of repetitions, where the preset number of repetitions is greater than or equal to 2;

retransmitting the first data packet on the configured transmission resource in a first modulation and coding scheme, where the MCS value of the first modulation and coding scheme is lower than the MCS value of the original modulation and coding scheme for transmitting the first data packet;

The first data packet is transmitted in a replication mode, wherein the replication mode includes: an aggregate carrier CA replication mode or a dual-connection DC replication mode;

The first data packet is transmitted on a second logical channel, wherein the priority of the second logical channel is higher than the priority of the first logical channel, and both the first logical channel and the second logical channel are the first A logical channel in a logical channel group.

Specifically, in this embodiment, the first data packet for performing the data transmission operation includes any of the following data packets:

packets that have been deprioritized;

Transmission of interrupted packets;

Packets not transmitted due to LBT failure;

The network-side device feeds back data packets that fail to transmit;

After the CGRT times out, the data packet that the network side device feedbacks the successful transmission is not received;

Newly transmitted packets.

In other embodiments, if the data transmission operation is to retransmit the first data packet on the configured transmission resource in the first modulation and coding manner, the transceiver 402 is further configured to: when the first data packet is transmitted When successful, the subsequent uplink data packets are transmitted on the configured transmission resources in the first modulation and coding manner.

In other embodiments, the transceiver 402 is specifically configured to report indication information to the network side device, where the indication information is used to indicate that the first logical channel is unreliable.

Specifically, in this embodiment, after starting the first device for timing, the processor 403 is further configured to start the second device for timing;

Then, the transceiver 402 is specifically configured to report the indication information to the network side device when the timing of the second device satisfies the condition.

For content not described in detail in the terminal 40 provided in the embodiment of the present application, reference may be made to the data transmission method 10 provided in the above-mentioned embodiment. Method 10 is the same and will not be repeated here.

It should be understood that, in the above-described embodiments, the bus architecture in FIG. 4 may include any number of interconnected buses and bridges, specifically various circuit links of one or more processors represented by processor 403 and memory represented by memory 401 together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. Transceiver 402 may be a number of elements, including a transmitter and a receiver, that provide means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like. For different user equipments, the user interface 404 may also be an interface capable of externally connecting a required device, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 403 is responsible for managing the bus architecture and general processing, and the memory 402 may store data used by the processor 403 in performing operations.

Optionally, the processor 403 may be a CPU (central processor), an ASIC (Application Specific Integrated Circuit, application specific integrated circuit), an FPGA (Field-Programmable Gate Array, field programmable gate array) or a CPLD (Complex Programmable Logic Device, Complex Programmable Logic Device), the processor can also use a multi-core architecture.

The processor is configured to execute any one of the methods provided in the embodiments of the present application according to the obtained executable instructions by invoking the computer program stored in the memory. The processor and memory may also be physically separated.

Based on the same inventive concept, an embodiment of the present application further provides a network side device 50. As shown in FIG. 5, the network side device 50 includes: a memory 501, a transceiver 502, and a processor 503, wherein,

a memory 501 for storing computer programs;

a transceiver 502, configured to send and receive data under the control of the processor 503;

The processor 503 is configured to read the computer program in the memory 501 and perform the following operations:

determining the configuration parameters of the first device;

The first device is configured for the first logical channel group of the terminal, so that when the terminal fails to perform data transmission, the first device for timing is started, wherein the first logical channel group includes two or more a logical channel.

In an embodiment, the processor 503 is further configured to configure a time-to-live for a bearer corresponding to the first logical channel group; and determine a configuration parameter of the first device according to the time-to-live.

In another embodiment, the processor 503 is specifically configured to configure the configuration parameters of the first device to the terminal through an RRC reconfiguration message.

In another embodiment, the transceiver 502 is configured to receive indication information reported by the terminal, where the indication information is used to indicate that the first logical channel is unreliable.

For the content not described in detail in the network side device 50 provided in this embodiment of the present application, reference may be made to the data transmission method 20 provided in the foregoing embodiment. The provided data transmission method 20 is the same, which is not repeated here.

It should be understood that, in the above-described embodiments, the bus architecture in FIG. 5 may include any number of interconnected buses and bridges, specifically various circuit links of one or more processors represented by processor 503 and memory represented by memory 501 together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. Transceiver 502 may be multiple elements, ie, including transmitters and receivers, providing means for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, and the like. The processor 503 is responsible for managing the bus architecture and general processing, and the memory 501 may store data used by the processor 503 in performing operations.

The processor 503 may be a central processor (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), the processor can also use a multi-core architecture.

Based on the same inventive concept, an embodiment of the present application further provides a terminal device. As shown in FIG. 6 , the terminal device 60 may include: an execution unit 610 .

The executing unit 610 is configured to start a first device for timing when the uplink data transmission fails; and when the timing of the first device satisfies a condition, execute a data transmission operation.

Specifically, in this embodiment, the first device includes: a first timer or a first counter, and the timing satisfying conditions of the first device include:

The timing of the first timer exceeds a predetermined duration; or,

The count of the first counter reaches a predetermined count value.

In some embodiments, the executing unit 610 is further configured to trigger the first device to shut down when the terminal executes data transmission successfully.

Wherein, the situation that the terminal successfully performs data transmission includes at least one of the following:

receiving, by the terminal, a feedback message sent by the network side device indicating that the data packet is successfully transmitted;

receiving, by the terminal, new transmission scheduling information for the first logical channel group sent by the network-side device;

The configuration of the terminal authorizes the CGT timer to expire.

In other embodiments, the predetermined duration or the predetermined count value is determined by a time-to-live corresponding to the first logical channel group, and the time-to-live is determined by the network-side device for the time corresponding to the first logical channel The bearer configuration is obtained.

In other embodiments, the situation that the uplink data transmission fails includes at least one of the following:

When the terminal is ready to perform uplink UL data transmission, the data packet is de-prioritized;

When the terminal is about to perform the UL data transmission, a listen-before-talk LBT failure occurs;

During the process of the terminal performing the UL data transmission, the transmission of the data packet is interrupted;

After the UL data is transmitted, the retransmission scheduling information for the data packet sent by the network side device is received;

After the UL data is transmitted, receiving a feedback message sent by the network side device indicating that the data packet transmission fails;

The configuration authorization retransmission timer CGRT of the terminal expires.

In other embodiments, performing a data transfer operation includes at least one of the following:

Retransmit the first data packet with a preset number of repetitions, where the preset number of repetitions is greater than or equal to 2;

retransmitting the first data packet on the configured transmission resource in a first modulation and coding scheme, where the MCS value of the first modulation and coding scheme is lower than the MCS value of the original modulation and coding scheme for transmitting the first data packet;

The first data packet is transmitted in a replication mode, wherein the replication mode includes: a collective carrier CA replication mode or a dual-connection DC replication mode;

The first data packet is transmitted on a second logical channel, wherein the priority of the second logical channel is higher than the priority of the first logical channel, and both the first logical channel and the second logical channel are the first A logical channel in a logical channel group.

Specifically, in this embodiment, the first data includes any one of the following first data packets include any of the following data packets:

Packets that are de-prioritized;

Transmission of interrupted packets;

Packets not transmitted due to LBT failure;

The network-side device feeds back data packets that fail to transmit;

After the CGRT times out, the data packet that the network side device feedbacks the successful transmission is not received;

Newly transmitted packets.

In other embodiments, if the data transmission operation is to retransmit the first data packet on the configured transmission resource in the first modulation and coding manner, the terminal device 60 further includes: a transmission unit 620 .

The transmitting unit 620 is configured to transmit subsequent uplink data packets on the configured transmission resources in the first modulation and coding manner when the first data packet is successfully transmitted.

In other embodiments, the transmission unit 620 is further configured to report indication information to the network side device, where the indication information is used to indicate that the first logical channel is unreliable.

Specifically, in this embodiment, after starting the first device for timing, the execution unit 610 is further configured to start the second device for timing;

Then, the transmission unit 620 is specifically configured to report the indication information to the network side device when the timing of the second device satisfies the condition.

For content not described in detail in the terminal 60 provided in the embodiment of the present application, reference may be made to the data transmission method 10 provided in the above-mentioned embodiment. Method 10 is the same and will not be repeated here.

Based on the same inventive concept, an embodiment of the present application further provides a network side device. As shown in FIG. 7 , the terminal device 70 may include: a determination unit 710 and a configuration unit 720 .

a determining unit 710, configured to determine the configuration parameters of the first device;

A configuration unit 720, configured to configure the first device for the first logical channel group of the terminal, so that when the terminal fails to perform data transmission, the first device for timing is started, wherein the first logical channel A group includes two or more logical channels.

In an embodiment, the determining unit 710 is further configured to configure a time-to-live for a bearer corresponding to the first logical channel group; and determine a configuration parameter of the first device according to the time-to-live.

In another embodiment, the configuration unit 720 is specifically configured to configure the configuration parameters of the first device to the terminal through an RRC reconfiguration message.

In another embodiment, a receiving unit 730 is further included, configured to receive indication information reported by the terminal, where the indication information is used to indicate that the first logical channel is unreliable.

For content not described in detail in the network-side device 70 provided in the embodiment of the present application, reference may be made to the data transmission method 20 provided in the above-mentioned embodiment. The provided data transmission method 20 is the same, which is not repeated here.

In addition, an embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when it runs on a computer, the computer can execute the foregoing data transmission method 10, or, data Corresponding content in the embodiment corresponding to the transmission method 20 . Compared with the prior art, the data transmission method provided by the embodiment of the present application provides an effective solution implemented by a terminal device for the situation that the service reliability is reduced due to the survival time timeout and cannot meet the reliability requirements of the service transmission. , when the terminal finds that the uplink data transmission fails, it starts the first device used for timing, and when the timing of the first device meets the conditions, executes the data transmission operation, so as to improve the reliability of service transmission and meet the requirements of service transmission. Quality of Service QoS performance requirements.

It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and other division methods may be used in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium. Based on this understanding, the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block in the flowcharts and/or block diagrams, and combinations of flows and/or blocks in the flowcharts and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the processor-readable memory result in the manufacture of means including the instructions product, the instruction means implements the functions specified in the flow or flow of the flowchart and/or the block or blocks of the block diagram.

These processor-executable instructions can also be loaded onto a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process that Execution of the instructions provides steps for implementing the functions specified in the flowchart or blocks and/or the block or blocks of the block diagrams.

The above are only some embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (26)

1. A data transmission method, performed by a terminal, the method comprising:

when the transmission of the uplink data fails, starting first equipment for timing;

and when the timing of the first equipment meets the condition, executing data transmission operation.

2. The data transmission method according to claim 1, wherein the first device comprises: a first timer or a first counter, the timing of the first device satisfying a condition comprising:

the timing of the first timer exceeds a preset time length; or,

the count of the first counter reaches a predetermined count value.

3. The data transmission method according to claim 2, wherein the predetermined time period or the predetermined count value is determined by a time-to-live corresponding to the first logical channel group.

4. The data transmission method according to any one of claims 1 to 3, wherein the case of uplink data transmission failure comprises at least one of:

when preparing to execute uplink UL data transmission, the priority of a data packet is reduced;

when preparing to perform the UL data transmission, a Listen Before Talk (LBT) failure occurs;

in the process of executing the UL data transmission, the transmission of the data packet is interrupted;

after the UL data is transmitted, retransmission scheduling information aiming at the data packet sent by network side equipment is received;

after the UL data is transmitted, receiving a feedback message which is sent by the network side equipment and indicates that the data packet transmission fails;

the configuration of the terminal authorizes the CGRT timeout of the retransmission timer.

5. The data transmission method according to any one of claims 1 to 3, wherein the performing of the data transmission operation comprises at least one of:

retransmitting the first data packet by a preset repetition number, wherein the preset repetition number is more than or equal to 2;

retransmitting a first data packet on configured transmission resources in a first modulation and coding mode, wherein the MCS value of the first modulation and coding mode is lower than the MCS value of the original modulation and coding mode for transmitting the first data packet;

transmitting a first data packet by adopting a replication mode, wherein the replication mode comprises the following steps: a set carrier CA replication mode or a dual-link DC replication mode;

and transmitting a first data packet on a second logical channel, wherein the priority of the second logical channel is higher than that of the first logical channel, and the first logical channel and the second logical channel are both logical channels in a first logical channel group.

6. The data transmission method according to claim 5, wherein the first data packet comprises any one of the following data packets:

a data packet with a reduced priority;

transmitting the interrupted data packet;

data packets not transmitted due to LBT failure;

the network side equipment feeds back a data packet which fails to be transmitted;

after the CGRT is overtime, the data packet which is successfully transmitted by the network side equipment is not received;

a newly transmitted data packet.

7. The data transmission method according to claim 5, wherein if the data transmission operation is performed to retransmit the first data packet on the configured transmission resource in the first modulation and coding manner, the method further comprises:

and when the first data packet is successfully transmitted, transmitting a subsequent uplink data packet on the configured transmission resource in the first modulation coding mode.

8. The data transmission method according to claim 2 or 3, wherein the predetermined duration of the first timer is configured by a network side device, the first timer is configured by the network side device for a first logical channel group of the terminal, and the first logical channel group includes two or more logical channels;

the first counter counts data packets that have failed to be transmitted in the first logical channel group, a predetermined count value of the first counter is configured by the network side device, and the first counter is configured by the network side device for the first logical channel group of the terminal.

9. A method of data transmission according to any one of claims 1-3, wherein the method further comprises:

and when the terminal successfully executes data transmission, triggering the first equipment to be closed.

10. The data transmission method according to claim 9, wherein the case where the terminal performs the data transmission successfully comprises at least one of:

receiving a feedback message which is sent by network side equipment and indicates that the data packet is successfully transmitted;

receiving new transmission scheduling information aiming at a first logic channel group, which is sent by the network side equipment;

the configuration of the terminal authorizes the CGT timer to time out.

11. A method of data transmission according to any one of claims 1-3, wherein the method further comprises:

and reporting indication information to the network side equipment, wherein the indication information is used for indicating that the first logic channel is unreliable.

12. The data transmission method according to claim 11, further comprising, after starting the first device for timing:

starting a second device for timing;

the reporting of the indication information to the network side device includes:

and when the timing of the second equipment meets the condition, reporting the indication information to the network side equipment.

13. A data transmission method, performed by a network side device, the method comprising:

determining configuration parameters of a first device;

configuring the first device for a first logical channel group of a terminal so that the first device for timing is started when the terminal fails to perform data transmission, wherein the first logical channel group comprises two or more logical channels.

14. The data transmission method of claim 13, wherein the determining the configuration parameter of the first device comprises:

configuring survival time for the bearer corresponding to the first logical channel group;

determining configuration parameters of the first device according to the survival time.

15. The data transmission method according to claim 13 or 14, wherein the configuring the first device for the first logical channel group of the terminal includes:

and configuring the configuration parameters of the first equipment to the terminal through an RRC reconfiguration message.

16. The data transmission method according to claim 13 or 14, further comprising:

and receiving indication information reported by the terminal, wherein the indication information is used for indicating that the first logic channel is unreliable.

17. A terminal device, comprising:

a memory for storing a computer program;

a transceiver for transceiving data under control of the processor;

a processor for reading the computer program in the memory and performing the following operations:

when the transmission of the uplink data fails, starting first equipment for timing;

and when the timing of the first equipment meets the condition, executing data transmission operation.

18. The terminal device of claim 17,

the first device includes: a first timer or a first counter, the timing of the first device satisfying a condition comprising:

the timing of the first timer exceeds a preset time length; or,

the count of the first counter reaches a predetermined count value.

19. The terminal device according to claim 17 or 18, wherein the processor is further configured to trigger the first device to turn off when the data transmission performed by the terminal is successful.

20. The terminal device according to claim 17 or 18, wherein the transceiver is specifically configured to report indication information to a network side device, where the indication information is used to indicate that the first logical channel is unreliable.

21. A network-side device, comprising:

a memory for storing a computer program;

a transceiver for transceiving data under control of the processor;

a processor for reading the computer program in the memory and performing the following operations:

determining configuration parameters of a first device;

configuring the first device for a first logical channel group of a terminal so that the first device for timing is started when the terminal fails to perform data transmission, wherein the first logical channel group comprises two or more logical channels.

22. The network-side device of claim 21, wherein the processor is specifically configured to configure a time-to-live for a bearer corresponding to the first logical channel group; determining configuration parameters of the first device according to the survival time.

23. The network-side device of claim 21 or 22, wherein the transceiver is specifically configured to receive indication information reported by the terminal, where the indication information is used to indicate that the first logical channel is unreliable.

24. A terminal device, comprising:

the device comprises an execution unit, a timing unit and a timing unit, wherein the execution unit is used for starting first equipment for timing when the transmission of the uplink data fails; and when the timing of the first equipment meets the condition, executing data transmission operation.

25. A network-side device, comprising:

a determining unit, configured to determine configuration parameters of the first device;

a configuration unit, configured to configure the first device for a first logical channel group of a terminal, so that when the terminal fails to perform data transmission, the first device for timing is started, where the first logical channel group includes two or more logical channels.

26. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing a processor to perform the method of any one of claims 1-12 or 13-16.

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