WO2023102748A1 - Method and apparatus for reporting small data transmission failure, and device and storage medium - Google Patents

Abstract

The present application relates to the field of wireless communications. Disclosed are a method and apparatus for reporting a small data transmission failure, and a device and a storage medium. The method is applied to a terminal device, and comprises: when a small data transmission process fails, recording a parameter related to the small data transmission process; and reporting the parameter related to the small data transmission process.

Description

Method, device, equipment and storage medium for reporting failure of small data transmission technical field

The present application relates to the field of wireless communication, and in particular to a method, device, device and storage medium for reporting failure of small data transmission.

Background technique

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

In the RRC_INACTIVE state, the terminal device supports data transmission through the small data transmission (Small Data Transmission, SDT) process without triggering the connection establishment recovery process to restore the radio resource control (Radio Resource Control, RRC) connection, and enters the RRC_CONNECTED state (ie RRC connection state) for data transmission.

Contents of the invention

Embodiments of the present application provide a method, device, device, and storage medium for reporting failure of small data transmission. Described technical scheme is as follows:

According to one aspect of the present application, a method for reporting a small data transmission failure is provided, the method comprising:

In the case that the small data transmission process fails, record parameters related to the small data transmission process;

Reporting parameters related to the small data transmission process.

According to one aspect of the present application, a method for reporting a small data transmission failure is provided, the method comprising:

Receive parameters related to the small data transmission process reported by the terminal device.

According to one aspect of the present application, a small data transmission failure reporting device is provided, the device includes: a parameter recording module and a parameter reporting module;

The parameter recording module is configured to record parameters related to the small data transmission process in the event of a small data transmission process failure;

The parameter reporting module is configured to report parameters related to the small data transmission process.

According to one aspect of the present application, a small data transmission failure reporting device is provided, the device comprising: a parameter receiving module;

The parameter receiving module is configured to receive parameters related to the small data transmission process reported by the terminal device.

According to one aspect of the present application, a terminal device is provided, and the terminal device includes: a processor and a transceiver; wherein,

The processor is configured to record parameters related to the small data transmission process in the event of a small data transmission process failure;

The transceiver is configured to report parameters related to the small data transmission process.

According to one aspect of the present application, a network device is provided, and the network device includes: a transceiver; wherein,

The transceiver is configured to receive parameters related to the small data transmission process reported by the terminal device.

According to one aspect of the present application, a computer-readable storage medium is provided, wherein executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by a processor to realize the small data The reporting method of transmission failure.

According to an aspect of an embodiment of the present application, a chip is provided, the chip includes programmable logic circuits and/or program instructions, and when the chip is run on a computer device, it is used to realize the small data described in the above aspect. The reporting method of transmission failure.

According to one aspect of the present application, a computer program product is provided. When the computer program product runs on a processor of a computer device, the computer device executes the method for reporting failure of small data transmission described in the above aspect.

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

During the small data transmission process, if the terminal device fails in the small data transmission process, the terminal device needs to record and report the parameters related to the small data transmission process to help the network device optimize the small data transmission process based on the parameters reported by the terminal device related configuration.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

FIG. 1 is a flowchart of an ad hoc network provided by an exemplary embodiment of the present application;

Fig. 2 is a block diagram of a communication system provided by an exemplary embodiment of the present application;

FIG. 3 is a flowchart of a reporting method for small data transmission failure provided by an exemplary embodiment of the present application;

FIG. 4 is a flow chart of a reporting method for small data transmission failure provided by an exemplary embodiment of the present application;

FIG. 5 is a schematic diagram of a reporting method for small data transmission failure provided by an exemplary embodiment of the present application;

Fig. 6 is a structural block diagram of a small data transmission failure reporting device provided by an exemplary embodiment of the present application;

Fig. 7 is a structural block diagram of a small data transmission failure reporting device provided by an exemplary embodiment of the present application;

Fig. 8 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

First, a brief introduction to the nouns involved in the embodiments of this application:

Small Data Transmission (SDT):

In the 5G NR system, there are three RRC states, namely: RRC_IDLE (idle state), RRC_INACTIVE (inactive state), and RRC_CONNECTED (connected state).

Among them, the RRC_INACTIVE state is a new state introduced by the 5G system from the perspective of energy saving. For the terminal equipment in the RRC_INACTIVE state, the radio bearer and all radio resources will be released, but the UE access context is reserved on the terminal equipment side and the base station side to quickly restore RRC connection, the network usually keeps terminal devices with infrequent data transmission in the RRC_INACTIVE state.

Before R16, a terminal device in the RRC_INACTIVE state does not support data transmission. When uplink or downlink data arrives, the terminal device needs to restore the connection and release it to the inactive state after the data transmission is completed. For terminal devices with small data volume and low transmission frequency, such a transmission mechanism will cause unnecessary power consumption and signaling overhead. Therefore, R17 set up a project to carry out research on small data transmission under RRC_INACTIVE. The project goals mainly have two directions: small data transmission based on random access (two-step/four-step) (ie RA-SDT) and based on pre-configured resources (such as CG type1) small data transmission (i.e. CG-SDT).

For a terminal device in the RRC_INACTIVE state, SDT is triggered when the following conditions are met:

-The data to be transmitted comes from radio bearers that can trigger SDT, such as Signal Resource Bearer (Signal Resource Bearer, SRB), Data Resource Bearer (Data Resource Bearer, DRB);

-The amount of data to be transmitted is less than the threshold of data amount preconfigured by the network;

- The downlink Reference Signal Receiving Power (RSRP) measurement result is greater than the RSRP threshold preconfigured by the network;

- there is a valid SDT resource, e.g. RA-SDT resource and/or CG-SDT resource;

If the terminal device is configured with RA-SDT and CG-SDT at the same time, the terminal device will first judge whether the CG-SDT resource is valid, and the judgment conditions include:

-There is a valid timing advance (Timing Advance, TA), the judgment method includes: SDT-TAT is in the running state, and/or, the RSRP variation does not exceed the pre-configured threshold;

- Selected carrier, normal uplink (Normal Uplink, NUL) or supplementary uplink (Supplementary Uplink, SUL), there is CG-SDT resource;

- CG-SDT resources exist on the selected Synchronization Signal Block (SSB);

If the above conditions cannot be met by the terminal device, the terminal device further judges whether the RA-SDT is valid, and if valid, initiates the RA-SDT process; otherwise, initiates the RRC recovery process.

During the SDT process, when the terminal device encounters the following events, it considers that the SDT has failed and enters the RRC_IDLE state:

Cell reselection occurs during SDT;

SDT failure detection timer (SDT failure detection timer) timeout;

Radio Link Control (RLC) reaches the maximum number of transmissions, that is, RLC failure is detected.

Self-Organizing Network (SON):

SON can optimize the configuration of network parameters according to the information reported by the terminal equipment. The signaling process is shown in Figure 1:

Step 102: the network device sends a terminal information request (UEInformationRequest) to the terminal device in the connected state.

UEInformationRequest includes information types that the network needs to report from the terminal equipment, for example, ra-ReportReq, rlf-ReportReq, etc. Taking ra-ReportRequest as an example, when this parameter field is set to true, it means that the network requires the terminal device to report information related to the random result process.

Step 104: The terminal device feeds back a corresponding type of report to the network through a terminal information response (UEInformationResponse) according to the network instruction.

The terminal device triggers and records the above-mentioned various types of reports according to different events. Taking ra-Report as an example, after each successful random access, the terminal device stores the random access process information in the VarRA-Report list maintained by the UE. When the report request from the network side is received, the recorded random access report is reported to the network.

Small data transmission is a new feature introduced in R17, so the SON framework of R17 and earlier does not support reporting of SDT problems. Therefore, in order to optimize the SDT process, it is necessary to add SDT process records and reports in subsequent versions of SON research.

FIG. 2 shows a block diagram of a communication system provided by an exemplary embodiment of the present application. The communication system may include: an access network 12 and a terminal device 14 .

The access network 12 includes several network devices 120 . The network device 120 may be a base station, and the base station is a device deployed in an access network to provide wireless communication functions for terminal devices. The base station may include various forms of macro base stations, micro base stations, relay stations, access points and so on. In systems using different wireless access technologies, the names of devices with base station functions may be different. For example, in LTE systems, they are called eNodeB or eNB; in 5G NR-U systems, they are called gNodeB or gNB. . As communications technology evolves, the description "base station" may change. For convenience in this embodiment of the present application, the above-mentioned devices that provide the wireless communication function for the terminal device 14 are collectively referred to as network devices.

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

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

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

Fig. 3 shows a flow chart of a method for reporting failure of small data transmission provided by an exemplary embodiment of the present application. The method can be applied to the communication system shown in Figure 2, and the method includes:

Step 302: When the small data transmission process fails, the terminal device records parameters related to the small data transmission process.

The small data transmission (SDT) process is a data transmission mode configured for terminal equipment in an inactive state. The small data transmission process does not require an RRC connection to be established between the terminal device and the network device. For terminal equipment with small data volume and low transmission frequency, if the data transmission can only be performed after restoring the RRC connection with the network equipment through the connection establishment recovery process, the data transmission needs to return to the inactive state , the power consumption of the terminal equipment is relatively large. By performing a small data transmission process, the terminal device can avoid switching the connection state, thereby reducing the power consumption of the terminal device.

Optionally, the small data transmission process includes: a small data transmission process based on a pre-configured resource (Configured Grant, CG) (ie, CG-SDT); or, a random access-based small data transmission process (ie, RA-SDT). Wherein, the small data transmission process based on random access may be a small data transmission process based on 2-step random access, or may be a small data transmission process based on 4-step random access.

When the small data transmission process is executed, the small data transmission process may fail. In the embodiment of the present application, if the small data transmission process fails, the terminal device records the parameters related to the small data transmission process.

Step 304: The terminal device reports parameters related to the small data transmission process to the network device.

Correspondingly, the network device receives the parameters related to the small data transmission process reported by the terminal device.

In one possible implementation, the terminal device reports all currently recorded parameters related to the small data transmission process; in another possible implementation, the network device indicates the type of the parameter reported by the terminal device, The terminal device correspondingly reports parameters of a specified type among the recorded parameters related to the small data transmission process.

Optionally, after receiving the parameters related to the small data transmission process reported by the terminal device, the network device uses the reported parameters to optimize the configuration related to the small data transmission process of the terminal device.

To sum up, in the technical solution provided by this embodiment, if the terminal device fails in the small data transmission process during the small data transmission process, the terminal device needs to record and report the parameters related to the small data transmission process to help the network The device optimizes the relevant configuration of the small data transmission process based on the parameters reported by the terminal device.

In the optional embodiment based on Figure 3, the types of parameters related to the small data transmission process recorded by the terminal device are related to specific events in the small data transmission process. When the small data transmission process fails, the terminal device first judges the event type, and then record the parameters related to the event.

Fig. 4 shows a flowchart of a method for reporting failure of small data transmission provided by an exemplary embodiment of the present application. The method can be applied to the communication system shown in Figure 2, and the method includes:

Step 402: At the first moment when the small data transmission process is initiated, the terminal device starts a first timer.

That is, at the point in time when the small data transmission process is initiated, the terminal device correspondingly starts the first timer. During the running of the first timer, the terminal device can perform uplink and downlink data transmission.

Exemplarily, the first timer is a timer used to detect whether the small data transmission process is successfully executed. Exemplarily, the first timer is recorded as an SDT failure detection timer (SDT failure detection timer).

Step 4041: At the second moment when the first timer expires, the terminal device considers that the small data transmission process fails, triggers the recording of the first event, and records parameters related to the first event.

The first timer corresponds to a preset duration. When the first timer starts after the preset duration and reaches the second moment, it means that the first timer has timed out. Since the first timer has timed out, Then the terminal device considers that the small data transmission process fails. After considering that the small data transmission process has failed, the terminal device determines that the first event has occurred, records the first event, and records parameters related to the first event.

The first event is an event related to the failure of the small data transmission process determined by the terminal device when the first timer expires and the small data transmission process fails. The specific content of the first event will be described in the following embodiments, and will not be repeated here.

Step 4042: At the third moment during the running of the first timer, the second event occurs, the terminal device considers that the small data transmission process fails, triggers the recording of the second event, and records the parameters related to the second event.

Wherein, the third moment is a moment earlier than the above-mentioned second moment. The second event occurs at the third moment, and thus the terminal device considers that the small data transmission process has failed. After considering that the small data transmission process has failed, the terminal device records the second event and records parameters related to the second event.

The second event is an event that causes the small data transmission process to fail during the running of the first timer. The specific content of the second event will be described in the following embodiments, and will not be repeated here.

Step 406: The terminal device reports parameters related to the small data transmission process to the network device.

Correspondingly, the network device receives the parameters related to the small data transmission process reported by the terminal device.

Optionally, step 406 is replaced by:

S11. The network device sends a report request to the terminal device, where the report request is used to request the terminal device to report parameters related to the small data transmission process to the network device.

S12. The terminal device receives the report request sent by the network device.

S13. The terminal device reports parameters related to the small data transmission process to the network device based on the report request.

That is, the terminal device reports parameters related to the small data transmission process to the network device based on a request from the network device side. At this time, the process of the terminal device reporting the parameters related to the small data transmission process conforms to the SON framework.

To sum up, the technical solution provided by this embodiment, in the process of small data transmission, if the terminal device fails in the small data transmission process, the terminal device needs to record and report the parameters related to the small data transmission process to help the network The device optimizes the relevant configuration of the small data transmission process based on the parameters reported by the terminal device.

At the same time, in the technical solution provided by this embodiment, the type of parameters related to the small data transmission process recorded by the terminal device is related to the specific event in the small data transmission process. When the small data transmission process fails, the terminal device first judges the type of the event type, and then record the parameters related to the event, which helps to ensure the validity of the parameters recorded and reported by the terminal device.

At the same time, in the technical solution provided by this embodiment, when the terminal device receives the report request from the network side, it will report the recorded parameters related to the small data transmission process to the network device, thereby ensuring the rationality of the reporting behavior of the terminal device .

Below, the following three possible embodiments are provided to illustrate the above technical solution.

1. For the scenario where the first timer expires, the terminal device considers that the small data transmission process has failed, and determines that the first event has occurred, and records and reports the parameters related to the first event occurring during the small data transmission process.

1) The terminal device initiates a small data transmission process, and starts a first timer. During the operation of the first timer, the terminal device performs an uplink and downlink data transmission process.

2) If one or more of the following first events occur on the terminal device when the first timer times out, the terminal device records parameters related to the small data transmission process.

Wherein, the first event includes at least one of the following:

• The first timer times out.

· There is first uplink data to be transmitted.

That is, at the second moment when the first timer expires, there is still uplink data to be transmitted at the terminal device side. Exemplarily, when the terminal device receives the dynamic scheduling resource of the network device but has not completed the uplink transmission, the first timer times out.

·The transmission of all uplink data is completed, and the end indication sent by the network device is not received, and the end indication is used to indicate the end of the small data transmission process.

Optionally, the end indication is carried in the RRC message.

Exemplarily, at the second moment when the first timer expires, the terminal device has completed the transmission of all uplink data, and waits for the network device to send an RRC message, where the RRC message is used to instruct the terminal device to end the small data transmission process.

· The second uplink data has undergone multiple transmissions.

Exemplarily, for RA-SDT, the terminal device detects a contention conflict.

Exemplarily, for CG-SDT, the number of times the terminal device uses the CG resource to transmit the second uplink data is more than once.

·After triggering the small data transmission process, new small data arrives.

· During the execution of CG-SDT, a random access procedure is triggered.

3) The parameters recorded and reported by the terminal equipment include one or more of the following:

• The amount of data to be transferred when the small data transfer process is triggered.

· The first indication information is used to indicate whether new small data arrives during the small data transmission process.

· The second indication information is used to indicate whether to transmit the second uplink data multiple times.

· The third indication information is used to indicate whether there is first uplink data whose transmission has not been completed.

• The measurement result of the downlink reference signal.

Optionally, the downlink reference signal includes at least one of the following: SSB, positioning reference signal (Positioning Reference Signal, PRS); the measurement quantity corresponding to the measurement result includes at least one of the following: RSRP, reference signal reception quality (Reference Signal Received Quality, RSRQ), or Signal to Noise Ratio (Signal to Interference plus Noise Ratio, SINR).

·For CG-SDT, the corresponding SSB measurement result when SSB is selected.

• The duration of the first timer.

· The trigger time of the small data transmission process.

· RA-SDT resource configuration information.

· Resource configuration information of CG-SDT.

4) The terminal device reports the above parameters, which can help the network device optimize the relevant configuration of the small data transmission process.

Exemplarily, the terminal device reports the parameters, and the network device optimizes the duration of the first timer based on the parameters, the RSRP threshold triggering the small data transmission process, the data volume (data volume) threshold triggering the small data transmission process and other configurations.

To sum up, the technical solution provided by this embodiment is aimed at the scenario where the first timer of the terminal device times out, the terminal device records and reports the parameters related to the small data transmission process, and helps the network device optimize the small data based on the parameters reported by the terminal device. Related configuration of the data transmission process.

2. For the scenario of RLC failure, the terminal device considers that the small data transmission process fails, and correspondingly records and reports the parameters related to the RLC failure occurred during the small data transmission process. That is, the second event is the detection of RLC failure.

1) The terminal device initiates a small data transmission process, and starts a first timer. During the operation of the first timer, the terminal device performs an uplink and downlink data transmission process.

2) If the terminal device detects RLC failure before the first timer expires, that is, the Acknowledge Mode (AM) data transmission reaches the maximum number of transmissions of the RLC layer, the terminal device records the parameters related to the small data transmission process.

3) The parameters recorded and reported by the terminal equipment include one or more of the following:

• The measurement result of the downlink reference signal.

Optionally, the downlink reference signal includes at least one of the following: SSB and PRS; the measurement quantity corresponding to the measurement result includes at least one of the following: RSRP, RSRQ, or SINR.

· Network device configuration measurement thresholds.

Optionally, the measurement quantity corresponding to the measurement threshold includes at least one of the following: RSRP, RSRQ, or SINR.

·For CG-SDT, the corresponding SSB measurement result when SSB is selected.

4) The terminal device reports the above parameters, which can help the network device optimize the relevant configuration of the small data transmission process.

Exemplarily, the terminal device reports parameters, and the network device optimizes configurations such as an RSRP threshold triggering small data transmission based on the parameters, so as to avoid multiple transmission failures due to poor channel quality.

To sum up, the technical solution provided by this embodiment is aimed at the scenario where the terminal device detects RLC failure, the terminal device records and reports the parameters related to the small data transmission process, and helps the network device optimize the small data transmission based on the parameters reported by the terminal device Process-related configuration.

3. For the scenario of random access channel problem, the terminal device considers that the small data transmission process fails, and correspondingly records and reports the parameters related to the random access channel problem that occurs during the small data transmission process. That is, the second event is the detection of a random access channel problem.

1) The terminal device initiates a small data transmission process, and starts a first timer. During the operation of the first timer, the terminal device performs an uplink and downlink data transmission process.

2) For RA-SDT, if the terminal device has a random access channel problem (RACH problem) before the first timer expires, that is, the random access attempt exceeds the maximum number of times, the terminal device records the information related to the small data transmission process parameter.

3) The parameters recorded and reported by the terminal equipment include one or more of the following:

• The measurement result of the downlink reference signal.

Optionally, the downlink reference signal includes at least one of the following: SSB and PRS; the measurement quantity corresponding to the measurement result includes at least one of the following: RSRP, RSRQ, or SINR.

· Network device configuration measurement thresholds.

Optionally, the measurement quantity corresponding to the measurement threshold includes at least one of the following: RSRP, RSRQ, or SINR.

· RA-SDT resource configuration information.

• Resource usage of RA-SDT.

· RA-SDT process.

Exemplarily, the process of the RA-SDT includes: whether the SSB selected by each RA attempt (attempt) satisfies the threshold, and whether a contention conflict is detected.

4) The terminal device reports the above parameters, which can help the network device optimize the relevant configuration of the small data transmission process.

Exemplarily, the terminal device reports parameters, and the network device optimizes configurations such as the RSRP threshold triggering RA-SDT and RA-SDT resources based on the parameters, so as to reduce the occurrence probability of random access channel problems.

To sum up, the technical solution provided by this embodiment is aimed at the scenario where the terminal device detects a random access channel problem, the terminal device records and reports the parameters related to the small data transmission process, and helps the network device optimize the network based on the parameters reported by the terminal device Related configuration of small data transmission process.

Next, with reference to FIG. 5 , an exemplary description will be given to the technical solution provided by the present application.

In the RRC_INACTIVE state, if the terminal device 510 satisfies certain conditions, the small data transmission process can be successfully triggered.

During the small data transmission process, the terminal device 510 considers that the small data transmission process fails when some events occur, and records and reports parameters related to the small data transmission process to the network device 520 .

Event 1: before the first timer expires, the small data transmission process is not successfully completed.

Exemplarily, the first timer is an SDT failure detection timer (SDT failure detection timer).

Event 2: RLC failure is detected.

Event three: A random access channel problem is detected.

The network device 520 optimizes the relevant configuration of the small data transmission based on the received parameters related to the small data transmission process, such as: optimizing the configuration of the measurement threshold triggering the small data transmission; optimizing the configuration of the data volume threshold triggering the small data transmission; optimizing the configuration of the small data transmission. Resource allocation for data transmission; optimize the configuration of timers corresponding to small data transmission, etc.

It should be noted that the above method embodiments may be implemented individually or in combination, which is not limited in the present application.

In each of the above embodiments, the steps performed by the terminal device can independently implement the method for reporting the failure of small data transmission on the side of the terminal device, and the steps performed by the network device can independently implement the method for reporting the failure of small data transmission on the side of the network device. Reporting method.

Fig. 6 shows a structural block diagram of a small data transmission failure reporting device provided by an exemplary embodiment of the present application. The device can be implemented as a terminal device, or can be implemented as a part of the terminal device. The device includes: a parameter recording module 602 and parameter reporting module 604;

The parameter recording module 602 is configured to record parameters related to the small data transmission process when the small data transmission process fails;

The parameter reporting module 604 is configured to report parameters related to the small data transmission process.

In an optional embodiment, the device further includes: a timer start module;

The timer starting module is configured to start a first timer at the first moment when the small data transmission process is initiated;

The parameter recording module 602 is configured to consider that the small data transmission process has failed at a second moment when the first timer expires, trigger recording of the first event, and record parameters related to the first event;

or,

The parameter recording module 602 is configured to trigger and record the second event when a second event occurs at a third moment during the operation of the first timer, consider that the small data transmission process fails, and record the second event. Parameters related to the second event.

In an optional embodiment, the first event includes at least one of the following:

The first timer expires;

There is first uplink data to be transmitted;

The transmission of all uplink data is completed, and the end indication sent by the network device is not received, and the end indication is used to indicate the end of the small data transmission process;

The second uplink data has undergone multiple transmissions;

After the small data transmission process is triggered, new small data arrives;

During the execution of the CG-SDT, a random access procedure is triggered.

In an optional embodiment, the parameters include at least one of the following:

The amount of data to be transmitted when the small data transmission process is triggered;

The first indication information is used to indicate whether new small data arrives during the transmission of the small data;

The second indication information is used to indicate whether to transmit the second uplink data multiple times;

The third indication information is used to indicate whether there is first uplink data whose transmission has not been completed;

The measurement result of the downlink reference signal;

For CG-SDT, the corresponding SSB measurement result when SSB is selected;

the duration of the first timer;

The trigger time of the small data transmission process;

Resource configuration information of RA-SDT;

Resource configuration information of the CG-SDT.

In an optional embodiment, the second event includes: RLC failure is detected.

In an optional embodiment, the parameters include at least one of the following:

The measurement result of the downlink reference signal;

a measurement threshold configured by the network device;

For CG-SDT, select the corresponding SSB measurement result when SSB is selected.

In an optional embodiment, the second event includes: detection of a random access channel problem.

In an optional embodiment, the parameters include at least one of the following:

The measurement result of the downlink reference signal;

a measurement threshold configured by the network device;

Resource configuration information of RA-SDT;

resource usage of the RA-SDT;

The RA-SDT process.

In an optional embodiment, the downlink reference signal includes at least one of the following: SSB, PRS;

The measurement quantity corresponding to the measurement result includes at least one of the following: reference signal received power RSRP, RSRQ, or SINR.

In an optional embodiment, the measurement quantity corresponding to the measurement threshold includes at least one of the following: RSRP, RSRQ, or SINR.

In an optional embodiment, the parameter reporting module 604 is configured to receive a report request sent by a network device; based on the report request, report parameters related to the small data transmission process to the network device.

Fig. 7 shows a structural block diagram of a small data transmission failure reporting device provided by an exemplary embodiment of the present application. The device can be implemented as a network device, or can be implemented as a part of the network device. The device includes: a parameter receiving module 702;

The parameter receiving module 702 is configured to receive parameters related to the small data transmission process reported by the terminal device.

In an optional embodiment, at the first moment when the terminal device initiates the small data transmission, the terminal device starts a first timer;

The parameters include: at the second moment when the first timer expires, the terminal device considers that the small data transmission process has failed, triggers and records the first event, and records parameters related to the first event;

or,

The parameters include: at the third moment during the operation of the first timer, the terminal device occurs a second event, considers that the small data transmission process fails, triggers the recording of the second event, and records all Parameters related to the second event.

In an optional embodiment, the first event includes at least one of the following:

The first timer expires;

There is first uplink data to be transmitted;

The transmission of all uplink data is completed, and the end indication sent by the device is not received, and the end indication is used to indicate the end of the small data transmission process;

The second uplink data has undergone multiple transmissions;

After the small data transmission process is triggered, new small data arrives;

During the execution of the CG-SDT, a random access procedure is triggered.

In an optional embodiment, the parameters include at least one of the following:

The amount of data to be transmitted when the small data transmission process is triggered;

The first indication information is used to indicate whether new small data arrives during the transmission of the small data;

The second indication information is used to indicate whether to transmit the second uplink data multiple times;

The third indication information is used to indicate whether there is first uplink data whose transmission has not been completed;

The measurement result of the downlink reference signal;

For CG-SDT, the corresponding SSB measurement result when SSB is selected;

the duration of the first timer;

The trigger time of the small data transmission process;

Resource configuration information of RA-SDT;

Resource configuration information of the CG-SDT.

In an optional embodiment, the second event includes: detecting a radio link control (RLC) failure.

In an optional embodiment, the parameters include at least one of the following:

The measurement result of the downlink reference signal;

measurement thresholds configured by the device;

For CG-SDT, select the corresponding SSB measurement result when SSB is selected.

In an optional embodiment, the second event includes: detection of a random access channel problem.

In an optional embodiment, the parameters include at least one of the following:

The measurement result of the downlink reference signal;

measurement thresholds configured by the device;

Resource configuration information of RA-SDT;

resource usage of the RA-SDT;

The RA-SDT process.

In an optional embodiment, the downlink reference signal includes at least one of the following: SSB, PRS;

The measurement quantity corresponding to the measurement result includes at least one of the following: RSRP, RSRQ, or SINR.

In an optional embodiment, the measurement quantity corresponding to the measurement threshold includes at least one of the following: RSRP, RSRQ, or SINR.

In an optional embodiment, the device further includes: a request reporting module;

The request reporting module is configured to send a report request to the terminal device, and the report request is used to request the terminal device to report parameters related to the small data transmission process to the apparatus.

FIG. 8 shows a schematic structural diagram of a communication device (terminal device or network device) provided by an exemplary embodiment of the present application. The communication device 800 includes: a processor 801 , a transceiver 802 and a memory 803 .

The processor 801 includes one or more processing cores, and the processor 801 executes various functional applications by running software programs and modules.

The transceiver 802 can be used for receiving and sending information, and the transceiver 802 can be a communication chip.

The memory 803 may be used to store a computer program, and the processor 801 is used to execute the computer program, so as to implement various steps performed by the communication device in the foregoing method embodiments.

In addition, the memory 803 can be realized by any type of volatile or non-volatile storage device or their combination, and the volatile or non-volatile storage device includes but not limited to: random-access memory (Random-Access Memory, RAM) And read-only memory (Read-Only Memory, ROM), erasable programmable read-only memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), flash memory or other solid-state storage technologies, compact disc read-only memory (CD-ROM), high-density digital video disc (Digital Video Disc, DVD) or other optical storage, tape cartridges, tapes, disks storage or other magnetic storage devices.

Wherein, when the communication device is implemented as a terminal device, the processor 801 and the transceiver 802 involved in the embodiment of the present application may execute the steps performed by the terminal device in any of the methods shown in FIG. 3 to FIG. 5 above, I won't repeat them here.

In a possible implementation manner, when the communication device is implemented as a terminal device,

The processor 801 is configured to record parameters related to the small data transmission process when the small data transmission process fails;

The transceiver 802 is configured to report parameters related to the small data transmission process.

Wherein, when the communication device is implemented as a network device, the processor 801 and the transceiver 802 involved in the embodiment of the present application may execute the steps performed by the network device in any of the methods shown in FIG. 3 to FIG. 5 above, I won't repeat them here.

In a possible implementation manner, when the communication device is implemented as a network device,

The transceiver 802 is configured to receive parameters related to the small data transmission process reported by the terminal device.

In an exemplary embodiment, a computer-readable storage medium is also provided, the computer-readable storage medium stores at least one instruction, at least one program, a code set or an instruction set, the at least one instruction, the At least one section of program, the code set or instruction set is loaded and executed by the processor to implement the method for reporting failure of small data transmission provided by the above method embodiments.

In an exemplary embodiment, a chip is also provided, the chip includes a programmable logic circuit and/or program instructions, and when the chip is run on a communication device, it is used to realize the small data transmission described in the above aspect Failed reporting method.

In an exemplary embodiment, a computer program product is also provided. When the computer program product runs on a processor of a computer device, the communication device executes the method for reporting failure of small data transmission described in the above aspects.

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

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

Claims (49)

A reporting method for small data transmission failure, characterized in that the method comprises: In the case that the small data transmission process fails, record parameters related to the small data transmission process; Reporting parameters related to the small data transmission process. The method according to claim 1, further comprising: At the first moment of initiating the small data transmission process, start a first timer; When the small data transmission process fails, record parameters related to the small data transmission process, including: At the second moment when the first timer expires, it is considered that the small data transmission process has failed, triggering and recording the first event, and recording parameters related to the first event; or, At a third moment during the operation of the first timer, a second event occurs, and the small data transmission process is deemed to have failed, triggering and recording the second event, and recording parameters related to the second event. The method according to claim 2, wherein the first event includes at least one of the following: The first timer expires; There is first uplink data to be transmitted; The transmission of all uplink data is completed, and the end indication sent by the network device is not received, and the end indication is used to indicate the end of the small data transmission process; The second uplink data has undergone multiple transmissions; After the small data transmission process is triggered, new small data arrives; During the CG-SDT process of small data transmission based on pre-configured resources, a random access process is triggered. The method according to claim 3, wherein the parameters include at least one of the following: The amount of data to be transmitted when the small data transmission process is triggered; The first indication information is used to indicate whether new small data arrives during the transmission of the small data; The second indication information is used to indicate whether to transmit the second uplink data multiple times; The third indication information is used to indicate whether there is first uplink data whose transmission has not been completed; The measurement result of the downlink reference signal; For CG-SDT, the corresponding SSB measurement result when the synchronization signal block SSB is selected; the duration of the first timer; The trigger time of the small data transmission process; Resource configuration information of RA-SDT based on random access small data transmission; Resource configuration information of the CG-SDT. The method according to claim 2, wherein the second event comprises: A radio link control RLC failure was detected. The method according to claim 5, wherein the parameters include at least one of the following: The measurement result of the downlink reference signal; Measurement thresholds configured by network devices; For CG-SDT, select the corresponding SSB measurement result when SSB is selected. The method according to claim 2, wherein the second event comprises: Random access channel problem detected. The method according to claim 7, wherein the parameters include at least one of the following: The measurement result of the downlink reference signal; Measurement thresholds configured by network devices; Resource configuration information of RA-SDT; resource usage of the RA-SDT; The RA-SDT process. According to any described method of claim 4 or 6 or 8, it is characterized in that, The downlink reference signal includes at least one of the following: SSB, positioning reference signal PRS; The measurement quantity corresponding to the measurement result includes at least one of the following: a reference signal received power RSRP, a reference signal received quality RSRQ, or a signal-to-noise ratio SINR. The method according to claim 6 or 8, characterized in that, The measurement quantity corresponding to the measurement threshold includes at least one of the following: RSRP, RSRQ, or SINR. The method according to any one of claims 1 to 10, wherein the reporting of parameters related to the small data transmission process includes: Receive the reporting request sent by the network device; Based on the report request, report parameters related to the small data transmission process to the network device. A reporting method for small data transmission failure, characterized in that the method comprises: Receive parameters related to the small data transmission process reported by the terminal device. The method according to claim 12, characterized in that, at the first moment when the terminal device initiates the small data transmission, the terminal device starts a first timer; The parameters include: at the second moment when the first timer expires, the terminal device considers that the small data transmission process has failed, triggers and records the first event, and records parameters related to the first event; or, The parameters include: at the third moment during the operation of the first timer, the terminal device occurs a second event, considers that the small data transmission process fails, triggers the recording of the second event, and records all Parameters related to the second event. The method according to claim 13, wherein the first event comprises at least one of the following: The first timer expires; There is first uplink data to be transmitted; The transmission of all uplink data is completed, and the end indication sent by the network device is not received, and the end indication is used to indicate the end of the small data transmission process; The second uplink data has undergone multiple transmissions; After the small data transmission process is triggered, new small data arrives; During the CG-SDT process of small data transmission based on pre-configured resources, a random access process is triggered. The method according to claim 14, wherein the parameters include at least one of the following: The amount of data to be transmitted when the small data transmission process is triggered; The first indication information is used to indicate whether new small data arrives during the transmission of the small data; The second indication information is used to indicate whether to transmit the second uplink data multiple times; The third indication information is used to indicate whether there is first uplink data whose transmission has not been completed; The measurement result of the downlink reference signal; For CG-SDT, the corresponding SSB measurement result when the synchronization signal block SSB is selected; the duration of the first timer; The trigger time of the small data transmission process; Resource configuration information of RA-SDT based on random access small data transmission; Resource configuration information of the CG-SDT. The method according to claim 13, wherein the second event comprises: A radio link control RLC failure was detected. The method according to claim 16, wherein the parameters include at least one of the following: The measurement result of the downlink reference signal; Measurement thresholds configured by network devices; For CG-SDT, select the corresponding SSB measurement result when SSB is selected. The method according to claim 13, wherein the second event comprises: Random access channel problem detected. The method according to claim 18, wherein the parameters include at least one of the following: The measurement result of the downlink reference signal; Measurement thresholds configured by network devices; Resource configuration information of RA-SDT; resource usage of the RA-SDT; The RA-SDT process. The method according to any one of claims 15 or 17 or 19, wherein, The downlink reference signal includes at least one of the following: SSB, positioning reference signal PRS; The measurement quantity corresponding to the measurement result includes at least one of the following: a reference signal received power RSRP, a reference signal received quality RSRQ, or a signal-to-noise ratio SINR. The method according to claim 17 or 19, characterized in that, The measurement quantity corresponding to the measurement threshold includes at least one of the following: RSRP, RSRQ, or SINR. The method according to any one of claims 12 to 21, further comprising: Sending a report request to the terminal device, where the report request is used to request the terminal device to report parameters related to the small data transmission process to the network device. A reporting device for small data transmission failure, characterized in that the device includes: a parameter recording module and a parameter reporting module; The parameter recording module is configured to record parameters related to the small data transmission process in the event of a small data transmission process failure; The parameter reporting module is configured to report parameters related to the small data transmission process. The device according to claim 23, further comprising: a timer starting module; The timer starting module is configured to start a first timer at the first moment when the small data transmission process is initiated; The parameter recording module is configured to consider that the small data transmission process has failed at the second moment when the first timer expires, trigger recording of the first event, and record parameters related to the first event; or, The parameter recording module is configured to trigger and record the second event when a second event occurs at a third moment during the operation of the first timer, consider that the small data transmission process fails, and record the second event. Two event-related parameters. The device according to claim 24, wherein the first event includes at least one of the following: The first timer expires; There is first uplink data to be transmitted; The transmission of all uplink data is completed, and the end indication sent by the network device is not received, and the end indication is used to indicate the end of the small data transmission process; The second uplink data has undergone multiple transmissions; After the small data transmission process is triggered, new small data arrives; During the CG-SDT process of small data transmission based on pre-configured resources, a random access process is triggered. The device according to claim 25, wherein the parameters include at least one of the following: The amount of data to be transmitted when the small data transmission process is triggered; The first indication information is used to indicate whether new small data arrives during the transmission of the small data; The second indication information is used to indicate whether to transmit the second uplink data multiple times; The third indication information is used to indicate whether there is first uplink data whose transmission has not been completed; The measurement result of the downlink reference signal; For CG-SDT, the corresponding SSB measurement result when the synchronization signal block SSB is selected; the duration of the first timer; The trigger time of the small data transmission process; Resource configuration information of RA-SDT based on random access small data transmission; Resource configuration information of the CG-SDT. The device according to claim 24, wherein the second event comprises: A radio link control RLC failure was detected. The device according to claim 27, wherein the parameters include at least one of the following: The measurement result of the downlink reference signal; Measurement thresholds configured by network devices; For CG-SDT, select the corresponding SSB measurement result when SSB is selected. The device according to claim 24, wherein the second event comprises: Random access channel problem detected. The device according to claim 29, wherein the parameters include at least one of the following: The measurement result of the downlink reference signal; Measurement thresholds configured by network devices; Resource configuration information of RA-SDT; resource usage of the RA-SDT; The RA-SDT process. A device according to any one of claims 26 or 28 or 30, wherein, The downlink reference signal includes at least one of the following: SSB, positioning reference signal PRS; The measurement quantity corresponding to the measurement result includes at least one of the following: a reference signal received power RSRP, a reference signal received quality RSRQ, or a signal-to-noise ratio SINR. Apparatus according to claim 28 or 30, characterized in that The measurement quantity corresponding to the measurement threshold includes at least one of the following: RSRP, RSRQ, or SINR. Apparatus according to any one of claims 23 to 32, wherein The parameter reporting module is configured to receive a reporting request sent by a network device; based on the reporting request, report parameters related to the small data transmission process to the network device. A reporting device for small data transmission failure, characterized in that the device includes: a parameter receiving module; The parameter receiving module is configured to receive parameters related to the small data transmission process reported by the terminal device. The device according to claim 34, wherein, at the first moment when the terminal device initiates the small data transmission, the terminal device starts a first timer; The parameters include: at the second moment when the first timer expires, the terminal device considers that the small data transmission process has failed, triggers and records the first event, and records parameters related to the first event; or, The parameters include: at the third moment during the operation of the first timer, the terminal device occurs a second event, considers that the small data transmission process fails, triggers the recording of the second event, and records all Parameters related to the second event. The device according to claim 35, wherein the first event includes at least one of the following: The first timer expires; There is first uplink data to be transmitted; The transmission of all uplink data is completed, and the end indication sent by the device is not received, and the end indication is used to indicate the end of the small data transmission process; The second uplink data has undergone multiple transmissions; After the small data transmission process is triggered, new small data arrives; During the CG-SDT process of small data transmission based on pre-configured resources, a random access process is triggered. The device according to claim 36, wherein the parameters include at least one of the following: The amount of data to be transmitted when the small data transmission process is triggered; The first indication information is used to indicate whether new small data arrives during the transmission of the small data; The second indication information is used to indicate whether to transmit the second uplink data multiple times; The third indication information is used to indicate whether there is first uplink data whose transmission has not been completed; The measurement result of the downlink reference signal; For CG-SDT, the corresponding SSB measurement result when the synchronization signal block SSB is selected; the duration of the first timer; The trigger time of the small data transmission process; Resource configuration information of RA-SDT based on random access small data transmission; Resource configuration information of the CG-SDT. The apparatus according to claim 35, wherein the second event comprises: A radio link control RLC failure was detected. The device according to claim 38, wherein the parameters include at least one of the following: The measurement result of the downlink reference signal; measurement thresholds configured by the device; For CG-SDT, select the corresponding SSB measurement result when SSB is selected. The apparatus according to claim 35, wherein the second event comprises: Random access channel problem detected. The device according to claim 40, wherein the parameters include at least one of the following: The measurement result of the downlink reference signal; measurement thresholds configured by the device; Resource configuration information of RA-SDT; resource usage of the RA-SDT; The RA-SDT process. A device according to any one of claims 37 or 39 or 41, wherein, The downlink reference signal includes at least one of the following: SSB, positioning reference signal PRS; The measurement quantity corresponding to the measurement result includes at least one of the following: a reference signal received power RSRP, a reference signal received quality RSRQ, or a signal-to-noise ratio SINR. Apparatus according to claim 39 or 41 wherein, The measurement quantity corresponding to the measurement threshold includes at least one of the following: RSRP, RSRQ, or SINR. The device according to any one of claims 34 to 43, further comprising: a request reporting module; The request reporting module is configured to send a report request to the terminal device, and the report request is used to request the terminal device to report parameters related to the small data transmission process to the apparatus. A terminal device, characterized in that the terminal device includes: a processor and a transceiver; wherein, The processor is configured to record parameters related to the small data transmission process when the small data transmission process fails; The transceiver is configured to report parameters related to the small data transmission process to network equipment. A network device, characterized in that the network device includes: a transceiver; wherein, The transceiver is configured to receive parameters related to the small data transmission process reported by the terminal device. A computer-readable storage medium, characterized in that executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by a processor to realize the small The reporting method for data transmission failure. A chip, characterized in that the chip includes a programmable logic circuit and/or program instructions, and when the chip is running, it is used to implement the method for reporting the failure of small data transmission according to any one of claims 1 to 22 . A computer program product or computer program, characterized in that the computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and the processor reads the computer-readable storage medium from the computer-readable storage medium And execute the computer instructions to realize the method for reporting failure of small data transmission according to any one of claims 1 to 22.

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