CN118104369A

CN118104369A - Communication method and device

Info

Publication number: CN118104369A
Application number: CN202180103249.3A
Authority: CN
Inventors: 林雪; 刘洋; 尤心
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2024-05-28
Also published as: WO2023108474A1

Abstract

The embodiment of the application provides a communication method and a device, wherein the method is applied to terminal equipment and comprises the following steps: recording SDT process parameters when the SDT abnormality is included in the successfully completed SDT process of small data transmission; and reporting the SDT process parameters to network equipment. And recording and reporting SDT process parameters when the SDT process is successfully completed.

Description

Communication method and device

Technical Field

The present application relates to the field of communications, and in particular, to a communication method and apparatus.

Background

At present, a scheme of small data transmission (SMALL DATA transmission, SDT) is proposed for a terminal device with small data size and low transmission frequency, so that the terminal device completes the SDT process in an inactive state.

In some scenarios, there are still corresponding problems to be optimized in the successfully completed SDT process. Since SDT is a new feature introduced by R17, there is currently no solution to record and report problems in the process of successfully completed SDT. Therefore, it is desirable to provide a solution to achieve process logging and reporting when an SDT process is successfully completed to facilitate optimization of the SDT process.

Disclosure of Invention

The embodiment of the application provides a communication method and a communication device, which are used for realizing process recording and reporting when an SDT process is successfully completed.

In a first aspect, an embodiment of the present application provides a communication method, which is applied to a terminal device, including:

recording SDT process parameters when the SDT abnormality is included in the successfully completed SDT process of small data transmission;

And reporting the SDT process parameters to network equipment.

In one possible embodiment, the SDT exception includes at least one of:

the time length between the completion time of the SDT process and the overtime time of the SDT failure detection timer is smaller than or equal to the first time length;

the terminal equipment generates a random access problem;

the terminal equipment triggers a random access process in an SDT process based on pre-configured resources;

the terminal device triggers an SDT process based on random access when the pre-configured resources are configured.

In one possible implementation manner, the first duration is a duration configured by the network device.

In one possible implementation, the SDT process parameter includes at least one of:

a first parameter, wherein the first parameter is a configuration parameter for triggering the SDT process;

a second parameter, wherein the second parameter is a radio link parameter of the SDT process;

And a third parameter, wherein the third parameter is a resource configuration parameter of the SDT process.

In one possible embodiment, the first parameter includes at least one of:

the terminal equipment triggers the data quantity to be transmitted in the SDT process;

The first indication information is used for indicating whether new SDT data arrives in the SDT process;

The duration of the SDT failure detection timer.

In one possible embodiment, the second parameter includes at least one of:

downlink reference signal measurement results;

Second indication information, the second indication information is used for indicating whether the terminal equipment executes SDT process for a plurality of times;

third indication information, the third indication information is used for indicating whether the terminal equipment triggers a random access process in an SDT process based on preconfigured resources;

and fourth indication information, wherein the fourth indication information is used for indicating whether the terminal equipment generates random access problem or not.

In a possible implementation, the downlink reference signals are synchronization signal blocks SSB and/or positioning reference signals PRS.

In a possible implementation manner, the second indication information includes resource configuration information of an SDT process based on the preconfigured resources; or the second indication information comprises resource configuration information of an SDT process based on random access.

In a possible implementation manner, the third parameter includes fifth indication information, where:

The fifth indication information is used for indicating whether the terminal equipment triggers an SDT process based on random access when the pre-configured resources are configured.

In one possible embodiment, the method further comprises:

the terminal device receives a first radio resource control, RRC, message from the network device during operation of the SDT failure detection timer.

In a possible implementation manner, the first RRC message includes any one of the following:

An RRC resume message;

An RRC release message;

The RRC state suspends the configuration message.

In a possible implementation manner, the starting time of the SDT failure detection timer is the time when the terminal device initiates the SDT procedure;

The end time of the SDT failure detection timer is the time when the terminal device receives the first RRC message.

In a possible implementation manner, the reporting the SDT procedure parameter to the network device includes:

And sending a terminal information response message to the network equipment, wherein the terminal information response message comprises the SDT process parameter, and the terminal information response message is a response message of a terminal information request message.

In a second aspect, an embodiment of the present application provides a communication method, applied to a network device, including:

and receiving the SDT process parameters reported by the terminal equipment, wherein the SDT process parameters indicate that the SDT process successfully completed by the terminal equipment comprises SDT abnormality.

In one possible embodiment, the first parameter includes at least one of:

The duration of the SDT failure detection timer.

In one possible embodiment, the second parameter includes at least one of:

downlink reference signal measurement results;

In one possible implementation, the downlink reference signals are SSBs and/or PRSs.

The fifth indication information is used for indicating whether the terminal equipment triggers an SDT process based on random access when the pre-configured resource is configured.

In a possible implementation manner, the SDT process parameter reported by the receiving terminal device includes:

And receiving a terminal information response message from the terminal equipment, wherein the terminal information response message comprises the SDT process parameter, and the terminal information response message is a response message of a terminal information request message.

In a third aspect, an embodiment of the present application provides a communication apparatus, including:

the recording module is used for recording SDT process parameters when the SDT abnormality is included in the successfully completed SDT process;

And the reporting module is used for reporting the SDT process parameters to the network equipment.

In one possible embodiment, the SDT exception includes at least one of:

the terminal equipment generates a random access problem;

In one possible embodiment, the first parameter includes at least one of:

The duration of the SDT failure detection timer.

In one possible embodiment, the second parameter includes at least one of:

downlink reference signal measurement results;

In a possible implementation manner, the device further comprises a receiving module, wherein the receiving module is used for:

A first RRC message is received from the network device during operation of the SDT failure detection timer.

An RRC resume message;

An RRC release message;

The RRC state suspends the configuration message.

The end time of the SDT failure detection timer is the time when the terminal equipment receives the first RRC message.

In one possible implementation manner, the reporting module is specifically configured to:

In a fourth aspect, an embodiment of the present application provides a communication apparatus, including:

and the receiving module is used for receiving the SDT process parameters reported by the terminal equipment, wherein the SDT process parameters indicate that the SDT process successfully completed by the terminal equipment comprises SDT abnormality.

In one possible embodiment, the first parameter includes at least one of:

The duration of the SDT failure detection timer.

In one possible embodiment, the second parameter includes at least one of:

downlink reference signal measurement results;

In a possible implementation manner, the receiving module is specifically configured to:

In a fifth aspect, an embodiment of the present application provides a terminal device, including: a transceiver, a processor, a memory;

The memory stores computer-executable instructions;

The processor executing computer-executable instructions stored in the memory causes the processor to perform the communication method according to any one of the first aspects.

In a sixth aspect, an embodiment of the present application provides a network device, including: a transceiver, a processor, a memory;

The memory stores computer-executable instructions;

The processor executing computer-executable instructions stored in the memory causes the processor to perform the communication method of any of the second aspects.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium having stored therein computer-executable instructions for implementing the communication method according to any one of the first or second aspects when the computer-executable instructions are executed by a processor.

In an eighth aspect, an embodiment of the present application provides a computer program product comprising a computer program which, when executed by a processor, implements a communication method according to any of the first or second aspects.

When the SDT abnormality is included in the successfully completed SDT process, the terminal device records the SDT process parameters and reports the SDT process parameters to the network device. When the SDT process comprises the SDT abnormality, the SDT process is indicated to be successfully completed, but the problem to be optimized exists in the SDT process, so that the terminal equipment can find the problem existing in the SDT process according to the SDT process parameter by recording the SDT process parameter and reporting the SDT process parameter to the network equipment, thereby helping the network equipment optimize the SDT resource and parameter configuration.

Drawings

Fig. 1 is a schematic diagram of an application scenario provided in an embodiment of the present application;

Fig. 2 is a signaling flow diagram based on SON reporting information;

Fig. 3 is a schematic flow chart of a communication method according to an embodiment of the present application;

fig. 4 is a schematic flow chart of a communication method according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application;

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

Fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

In order to better understand the technical scheme of the present application, the related concepts and related technologies related to the present application are described below.

Terminal equipment: typically having wireless transceiver functions, the terminal device may be deployed on land, including indoors or outdoors, hand-held, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); but may also be deployed in the air (e.g., on aircraft, balloon, satellite, etc.). The terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control (industrial control), a vehicle-mounted terminal device, a wireless terminal in unmanned (SELF DRIVING), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (SMART GRID), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (SMART CITY), a wireless terminal in smart home (smart home), a wearable terminal device, or the like. The terminal device according to the embodiments of the present application may also be referred to as a terminal, a User Equipment (UE), an access terminal device, a vehicle terminal, an industrial control terminal, a UE unit, a UE station, a mobile station, a remote terminal device, a mobile device, a UE terminal device, a wireless communication device, a UE agent, or a UE apparatus, etc. The terminal device may also be fixed or mobile.

Network equipment: typically with wireless transceiving capabilities, the network device may have mobile characteristics, e.g., the network device may be a mobile device. Alternatively, the network device may be a satellite, a balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a medium earth Orbit (medium earth Orbit, MEO) satellite, a geosynchronous Orbit (geostationary earth Orbit, GEO) satellite, a high elliptical Orbit (HIGH ELLIPTICAL Orbit, HEO) satellite, or the like. For example, LEO satellites typically have an orbital altitude ranging from 500km to 1500km, and an orbital period (period of rotation around the earth) ranging from about 1.5 hours to 2 hours. The signal propagation delay of the single-hop communication between users is about 20ms, and the single-hop communication delay between users refers to the transmission delay between terminal equipment and network equipment or the delay between network equipment and transmission equipment. The maximum satellite visibility time, which is the maximum time that the satellite beam covers a certain area of the ground, is about 20 minutes, and the LEO satellite is moving relative to the ground, and the area of the ground that it covers varies as the satellite moves. The LEO satellite has short signal propagation distance, less link loss and low requirement on the transmitting power of terminal equipment. The orbit height of GEO satellites is typically 35786km with an orbit period of 24 hours. The signal propagation delay for single hop communication between users is about 250ms. To ensure satellite coverage and to increase the system capacity of the communication network, satellites may cover the ground with multiple beams, e.g., one satellite may form tens or hundreds of beams to cover the ground, and one beam may cover a ground area of tens to hundreds of kilometers in diameter. Of course, the network device may also be a base station disposed in a land, a water area, or the like, and for example, the network device may be a next generation base station (gNB) or a next generation evolved node b (ng-eNB). The ngNB provides a user plane function and a control plane function of a New Radio (NR) for the UE, and the ng-eNB provides a user plane function and a control plane function of an evolved universal terrestrial radio access (evolved universal terrestrial radio access, E-UTRA) for the UE, which should be noted that the gNB and the ng-eNB are only one name, which is used to indicate a base station supporting the 5G network system, and are not limited. The network device may also be a base station (base transceiver station, BTS) in a GSM system or a CDMA system, a base station (nodeB, NB) in a WCDMA system, or an evolved base station (evolutional node B, eNB or eNodeB) in an LTE system. Or the network device may also be a relay station, an access point, an in-vehicle device, a wearable device, and a network side device in a network after 5G or a network device in a PLMN network of future evolution, a Road Site Unit (RSU), etc.

RRC state: the terminal device and the network device communicate with each other through a wireless channel to exchange information with each other, and thus a control mechanism, which is RRC, is required to exchange information and agree between the terminal device and the network device. In LTE, the RRC states include an RRC idle state and an RRC connected state. In 5G NR, an RRC inactive state (RRC INACTIVE) is introduced in addition to an RRC idle state (RRC idle) and an RRC connected state (RRC connected). In the RRC inactive state, the terminal device and the network device are in an unconnected state, but the context of the terminal device is still partially preserved, and in the RRC inactive state, the terminal device can be rapidly switched to the RRC connected state through a paging message or the like.

Random access: the method refers to a process before the terminal equipment transmits the random access preamble to the network equipment to establish basic signaling connection, and refers to a process of establishing a wireless link between the terminal equipment and the network equipment to acquire or recover uplink synchronization. Random access is a key step in a mobile communication system, making it possible for a terminal device and a network device to establish a communication connection. The terminal equipment performs information interaction with the network equipment through random access, and uplink synchronization can be realized through random access. In the practical application process, the terminal device may initiate random access in a plurality of possible scenarios, for example, the plurality of possible scenarios may include at least one of the following scenarios: (1) After the state of the terminal device is switched from the radio resource control (radio resource control, RRC) idle state to the RRC connected state, random access is initiated when the terminal device establishes a radio link with the network device. (2) After the radio link between the terminal device and the network device fails, the terminal device initiates random access when performing RRC connection reestablishment with the network device. (3) And initiating random access when the terminal equipment needs to establish uplink synchronization with the new cell. (4) When the terminal equipment is in an RRC connection state and uplink is asynchronous, if uplink or downlink data arrives, random access is initiated. (5) Random access is initiated when the terminal device is in RRC connected state, but dedicated resources for transmitting scheduling requests are not yet configured for the terminal device on the physical uplink control channel (physical uplink control channel, PUCCH). (6) initiating random access when the scheduling request fails. (7) Random access is initiated upon RRC request upon synchronous reconfiguration. (8) The state of the terminal device initiates random access when switching from the RRC inactive state to the RRC connected state. (9) Random access is initiated when a time alignment is established when adding a second cell. (10) Random access is initiated when other system information than the master information block (master information block, MIB) and the system information block (system information block, SIB) is requested. (11) initiating random access upon beam failure recovery.

RA-SDT: the random access-based small data transmission is a mode of completing uplink data transmission by information interaction in the process that the terminal equipment establishes connection with the network equipment in a random access mode.

CG-SDT: the data transmission mode based on the pre-configured resources and the data transmission mode based on random access are both data transmission modes of the terminal equipment in a non-activated state, wherein the data transmission mode based on the pre-configured resources is a mode of completing uplink data transmission according to the pre-configured resources which are pre-allocated to the terminal equipment by the network equipment

RSRP: REFERENCE SIGNAL RECEIVING power, reference signal received power.

RRC: radio Resource Control, radio resource control.

A suspend state: in the suspended state, the terminal device in the suspend state has its context stored in the RAN and the UE, so that the UE can be rapidly switched to the connected state.

In addition, it should be understood that, in the description of the present application, the terms "first," "second," and the like are used for distinguishing between the descriptions, and should not be construed as indicating or implying any particular importance, or order of description, nor should it be construed as indicating or implying any particular relationship or order of such terms.

Next, a scene to which the communication method of the present application is applied will be described with reference to fig. 1.

Fig. 1 is a schematic diagram of an application scenario provided in an embodiment of the present application. Referring to fig. 1, the network device 101 and the terminal device 102 are included, and wireless communication and data transmission can be performed between the network device 101 and the terminal device 102.

Wherein the network comprising the network device 101 and the terminal device 102 may also be referred to as a Non-terrestrial communication network (Non-TERRESTRIAL NETWORK, NTN), wherein NTN refers to a communication network between the terminal device and a satellite (which may also be referred to as a network device).

It can be understood that the technical solution of the embodiment of the present application may be applied to a New Radio (NR) communication technology, where NR refers to a New generation Radio access network technology, and may be applied to a future evolution network, such as a future fifth generation mobile communication (the 5th Generation Mobile Communication,5G) system. The scheme in the embodiment of the application can also be applied to other wireless communication networks such as wireless fidelity (WIRELESS FIDELITY, WIFI), long term evolution (Long Term Evolution, LTE) and the like, and corresponding names can be replaced by names of corresponding functions in other wireless communication networks.

The network architecture and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided by the embodiments of the present application, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of the new service scenario, the technical solution provided by the embodiments of the present application is applicable to similar technical problems.

In the 5G NR system, the RRC states are classified into 3 types, namely, an RRC idle state, an RRC inactive state, and an RRC connected state. Wherein the RRC inactive state is a new state introduced by the 5G system from the energy saving point of view, for the UE in the RRC inactive state, radio bearers and all radio resources are released, but the UE side and the base station side reserve the UE access context in order to quickly restore the RRC connection, and the network generally keeps the UE in the RRC inactive state where data transmission is not frequent.

Before Rel-16, the UE in the RRC inactive state does not support data transmission, and when MO or MT data arrives, the UE needs to resume connection, and release to the inactive state after the data transmission is completed. For UEs with small data size and low transmission frequency, such a transmission mechanism may cause unnecessary power consumption and signaling overhead. Based on this, an SDT procedure in the RRC inactive state is proposed. The SDT in the RRC inactive state includes a random access-based SDT and a preconfigured resource-based SDT, and further, rel-16 introduces a two-step random access procedure, so that small data transmission based on random access can be further divided into small data transmission based on four-step random access and small data transmission based on two-step random access.

For UEs in RRC inactive state, the SDT procedure may be triggered when the following conditions are met:

(1) The data to be transmitted comes from radio bearers that may trigger SDT, including for example signaling radio bearers (SIGNALLING RADIO BEARER, SRB), data radio bearers (data radio bearer, DRB), etc.;

(2) The data quantity to be transmitted is smaller than the pre-configured data quantity threshold of the network equipment;

Since the SDT process is directed to data transmission of the UE with small data size and low transmission frequency, the data size to be transmitted is limited to a certain extent, and the SDT process can be started only when the data size to be transmitted is smaller than the preset data size threshold.

(3) The downlink RSRP measurement result is larger than the RSRP threshold preconfigured by the network equipment;

(4) There are valid SDT resources.

The SDT resources are used by the terminal device to perform SDT procedures, and may include RA-SDT resources and/or CG-SDT resources. RA-SDT resources may be used for random access based SDT procedures and CG-SDT resources may be used for preconfigured resource based SDT procedures. Wherein, RA-SDT resource is the public resource of cell level, there is the competition of uplink resource, and CG-SDT resource is the resource that is configured for UE through the special signaling, CG-SDT resource does not have the competition of uplink resource.

When the UE in the RRC inactive state satisfies the above condition, the SDT procedure is triggered. For condition (4), when the UE is configured with RA-SDT resources only, the UE may attempt a random access based SDT procedure; when the UE is configured with CG-SDT resources only, the UE may attempt a preconfigured resource based SDT procedure; when the UE is configured with RA-SDT resources and CG-SDT resources at the same time, the UE preferentially judges whether the CG-SDT resources are valid or not.

The judging conditions for judging whether CG-SDT resources are effective by the UE include:

(1) Whether a valid tracking area (TRACKING AREA, TA) is present.

The manner of determining whether a valid TA exists may include:

a. An SDT-TA Timer (SDT-TA Timer, SDT-TAT) is in an operational state.

SDT-TAT is a timer dedicated to the introduction of CG-SDT procedures for maintaining the validity of the TA. When the terminal equipment receives CG-SDT resources, the terminal equipment can judge whether the SDT-TAT is in an operation state or not when the terminal equipment has uplink data transmission requirements, and if the SDT-TAT is in the operation state, the TA is effective.

B. The RSRP variation is less than or equal to the preconfigured threshold.

When the SDT-TAT is in an operational state and/or the RSRP variation is less than or equal to a pre-configured threshold, there is a valid TA.

(2) Whether CG-SDT resources are present on the selected carrier.

The selected carriers may include Normal Uplink (NUL) or supplemental uplink (supplementary uplink, SUL).

(3) Whether CG-SDT resources are present on the selected synchronization signal block (Synchronization Signal Block, SSB).

Since CG-SDT resources are not present on every SSB, it is necessary to determine whether CG-SDT resources are present on the selected SSB.

When the configured CG-SDT resources satisfy the above conditions, the CG-SDT resources are valid, at which time the UE may perform an SDT procedure based on the preconfigured resources. When the configured CG-SDT resource does not meet the conditions, the CG-SDT resource is invalid, and the UE needs to further judge whether the RA-SDT resource is valid or not. The manner of determining whether the RA-SDT resource is valid may, for example, determine whether the RA-SDT resource is present on the selected carrier, and when present, the RA-SDT resource is valid, and when not present, the RA-SDT resource is invalid. If the RA-SDT resource is valid, the UE can execute an SDT process based on random access; if the RA-SDT resource is invalid, the UE initiates an RRC recovery flow, enters an RRC connection state, and then executes the SDT process in the connection state.

The triggering of the SDT procedure is described in the above embodiment, and the procedure of configuring parameters of the optimized network for reporting information to the terminal device will be described with reference to fig. 2. The process of reporting information by the terminal device can be implemented based on a Self-organizing network (Self-Organizing Network, SON).

Fig. 2 is a signaling flow chart based on SON reporting information, as shown in fig. 2, including:

s21, the network equipment sends a terminal information request message to the terminal equipment (UE Information Request).

The network device sends a terminal information request message to the terminal device in the RRC connection state, wherein the terminal information request message comprises the information type which needs to be reported by the network device.

For example, the information type indicated to be reported in the terminal information request message may include ra-ReportReq, rlf-ReportReq, and when the corresponding parameter domain is set to true, it indicates that the network device needs to report the corresponding information by the terminal device. For example, when the parameter domain corresponding to ra-ReportReq is set to true, it indicates that the network device needs the terminal device to report information related to the random access procedure, and when the parameter domain corresponding to rlf-ReportReq is set to true, it indicates that the network device needs the terminal device to report information related to the radio link.

S22, the terminal equipment sends a terminal information response message to the network equipment (UE Information Response).

The terminal device may feed back a corresponding type of report to the network device through a terminal information response message according to an indication of the network device.

The terminal equipment triggers and records the report of each information type aiming at different events. Taking ra-ReportReq as an example, after each successful completion of the random access procedure, the terminal device stores information related to the random access procedure in a VarRA-Report list maintained by the terminal device. And when receiving a report request of the network equipment, reporting the recorded information related to the random access process to the network equipment.

When the RRC-connected terminal device and the network device perform data transmission, reporting parameters of the data transmission process may be performed according to the scheme illustrated in fig. 2, so as to implement optimization of the data transmission process. For the SDT process, in some scenarios, there is still a corresponding problem to be optimized in the SDT process that is successfully completed, and since the SDT is a new feature introduced by R17, there is no scheme for recording and reporting the problem existing in the SDT process. Based on the above, the embodiment of the application provides a scheme for realizing the recording and reporting in the SDT process successfully completed.

Fig. 3 is a flow chart of a communication method according to an embodiment of the present application, as shown in fig. 3, the method may include:

S31, when the SDT abnormality is included in the successfully completed SDT process, the terminal equipment records the SDT process parameters.

In the embodiment of the application, the SDT process is completed when the terminal equipment is in an RRC inactive state, and the SDT process can be an SDT process based on random access or an SDT process based on preconfigured resources. In some scenarios, although the SDT process is successfully completed, there are SDT anomalies in the SDT process, which are potential problems in the SDT process.

In order to optimize against potential problems in the SDT process, the terminal device records SDT process parameters when a successful SDT process includes an SDT exception.

S32, the terminal equipment reports the SDT process parameters to the network equipment.

After the terminal device records the SDT process parameters, the SDT process parameters can be reported to the network device, and the reporting process can be completed based on the SON framework.

S33, the network device receives the SDT procedure parameter.

After receiving the SDT process parameters, the network device may analyze the potential problems that need to be optimized in the SDT process that is successfully completed according to the SDT process parameters, so as to perform corresponding optimization processing for the potential problems.

When the SDT abnormality is included in the successfully completed SDT process, the communication method provided by the embodiment of the application records the SDT process parameters by the terminal equipment and reports the SDT process parameters to the network equipment. When the SDT process comprises the SDT abnormality, the SDT process is indicated to be successfully completed, but the problem to be optimized exists in the SDT process, so that the terminal equipment can find the problem existing in the SDT process according to the SDT process parameter by recording the SDT process parameter and reporting the SDT process parameter to the network equipment, thereby helping the network equipment optimize the SDT resource and parameter configuration.

In a possible implementation manner, the terminal device may report SDT procedure parameters based on the SON framework illustrated in fig. 2, which will be described below in connection with fig. 4.

Fig. 4 is a flow chart of a communication method according to an embodiment of the present application, as shown in fig. 4, including:

S41, the network equipment sends a terminal information request message to the terminal equipment.

When the terminal device is in the RRC connected state, the network device may send a terminal information request message to the terminal device, where the terminal information request message includes an information type that the network device needs to report to the terminal device.

S42, the terminal equipment executes the SDT process.

In the embodiment of the application, the terminal equipment is in an RRC inactive state when executing the SDT process. The SDT procedure initiated by the terminal device may be an SDT procedure based on a preconfigured resource or an SDT procedure based on random access.

When the terminal device initiates the SDT procedure, the terminal device synchronously starts the SDT failure detection timer. The duration of the SDT failure detection timer may be configured by the network device during which the terminal device performs the SDT procedure.

When the terminal device receives the first RRC message sent from the network device during the operation of the SDT failure detection timer, it indicates that the SDT procedure is successfully completed, and at this time, the terminal device may stop operating the SDT failure detection timer. The starting time of the SDT failure detection timer is the time when the terminal device sends the SDT process, and the ending time of the SDT failure detection timer is the time when the terminal device receives the first RRC message, where the first RRC message may be any one of an RRC resume message, an RRC release message, and an RRC state suspension configuration message. And if the terminal equipment still does not receive the first RRC message after the duration of the SDT failure detection timer is passed, the SDT process is considered to be not successfully completed.

S43, when the SDT abnormality is included in the successfully completed SDT process, the terminal equipment records the SDT process parameters.

In the embodiment of the application, the terminal equipment successfully completes the SDT process, namely, successfully receives the first RRC message during the operation of the SDT failure detection timer. When the SDT process includes SDT abnormality, the terminal device records SDT process parameters to report to the network device.

In one possible implementation, the SDT exception includes at least one of:

Abnormal event one: the duration between the time the SDT procedure is completed and the time the SDT failure detection timer times out is less than or equal to the first duration.

The first duration is the duration configured by the network device, the overtime time of the SDT failure detection timer is the time when the running duration of the SDT failure detection timer reaches the configured duration, and the time when the SDT process is completed is the time when the terminal device receives the first RRC message.

Since the terminal device receives the first RRC message during the operation of the SDT failure detection timer, the SDT process is completed successfully, and when the duration between the time when the SDT process is completed and the time when the SDT failure detection timer times out is less than or equal to the first duration, it indicates that the SDT process is completed successfully only when the SDT failure detection timer times out. This exception event may indicate that the duration of the SDT failure detection timer is not reasonably configured, that there are some reasons that the time for the SDT to complete successfully has been extended, and so on. Thus, when an abnormal event occurs in the successfully completed SDT process, the terminal device records the SDT process parameters.

Abnormal event two: the terminal device has a random access problem.

The SDT procedure initiated by the terminal device may be an SDT procedure based on preconfigured resources or an SDT procedure based on random access. In the SDT process, if the terminal initiates random access and the random access problem occurs, the SDT abnormality is considered to exist in the SDT process.

The random access problem may be, for example, that the number of times the terminal device attempts to initiate random access reaches a pre-configured maximum number. The maximum number of preconfigured times can be configured by the network equipment, when the terminal equipment initiates the random access process, if the random access fails, the terminal equipment can try to initiate the random access again. For example, if the maximum number of preconfigured times is 8, the terminal device does not succeed in the random access process for multiple times in the SDT process, when the number of times that the terminal device tries to access randomly reaches 8 times, it is determined that the terminal device has a random access problem, at this time, an abnormal event two occurs in the SDT process that is successfully completed, and the terminal device records the SDT process parameters.

Abnormal event three: the terminal device triggers a random access procedure in an SDT procedure based on the pre-configured resources.

As exemplified in the above embodiment, when the terminal device is configured with CG-SDT resources and RA-SDT resources at the same time, the terminal device preferentially judges whether the CG-SDT resources are valid, if so, the terminal device initiates an SDT procedure based on the pre-configured resources, and if not, the terminal device judges whether the RA-SDT resources are valid, and if so, initiates an SDT procedure based on random access.

When the terminal equipment initiates the SDT process based on the pre-configured resource, the CG-SDT resource is initially determined to be valid, and the SDT process based on the pre-configured resource is initiated on the premise that the CG-SDT resource is valid. In the SDT process, the terminal device triggers the random access process, and if the CG-SDT resource is valid, the CG-SDT resource is determined to be invalid when the CG-SDT resource is determined to be valid again in the SDT process, and the random access process is triggered at this time. For example, when there is no suitable SSB, the terminal device triggers a random access procedure in a pre-configured resource based SDT procedure. At this time, an abnormal event III occurs in the successfully completed SDT process, and the terminal device records the SDT process parameters.

Abnormal event four: the terminal device triggers a random access based SDT procedure when the pre-configured resources are configured.

When the terminal equipment is configured with CG-SDT resources and RA-SDT resources at the same time, the terminal equipment preferentially judges whether the CG-SDT resources are valid, if so, the terminal equipment initiates an SDT process based on the pre-configured resources, if not, the terminal equipment judges whether the RA-SDT resources are valid, and if so, the terminal equipment initiates an SDT process based on random access.

Therefore, when the terminal device configures the pre-configured resources, if the SDT procedure based on random access is triggered, it indicates that the pre-configured resources are invalid, and the pre-configured resources allocated to the terminal device are not effectively utilized. At this time, an abnormal event IV occurs in the SDT process that is successfully completed, and the terminal device records the SDT process parameters.

In the above embodiment, SDT exceptions included in the SDT process that is successfully completed, i.e., exception event one through exception event four, are introduced. When at least one of the first to fourth abnormal events occurs in the SDT process, the terminal device records the SDT process parameters. Wherein the SDT process parameter includes at least one of a first parameter, a second parameter, and a third parameter.

The first parameter is a configuration parameter for triggering the SDT process, and is used for assisting the network equipment to judge whether the configuration parameter for triggering the SDT process is reasonable or not.

The first parameter may comprise at least one of:

a. the amount of data to be transmitted when the terminal device triggers the SDT procedure.

The size of the data volume to be transmitted when the terminal device triggers the SDT process affects the duration of the SDT process, and when the data volume to be transmitted is large, the SDT process takes a relatively long time, and when the data volume to be transmitted is small, the SDT process takes a relatively short time.

B. and the first indication information is used for indicating whether new SDT data arrives in the SDT process.

The first indication information indicates whether new SDT data arrives in the SDT process, and when the new SDT data arrives in the SDT process, the amount of data to be transmitted correspondingly increases, and the time consumption of the SDT process correspondingly changes.

C. The duration of the SDT failure detection timer.

The SDT failure detection timer is configured by the network device for each cell, which may include a plurality of terminal devices, and the arrival of data to be transmitted is different for different terminal devices.

Therefore, the network device may determine, according to the first parameter, whether the configuration of the data amount triggering the SDT procedure is reasonable, whether the configuration of the duration of the SDT failure detection timer is reasonable, and so on. For example, when the duration between the time when the SDT procedure is completed and the time when the SDT failure detection timer expires is less than or equal to the first duration, the network device receives a first parameter, where the first parameter includes an amount of data to be transmitted when the terminal device triggers the SDT procedure. And knowing that the configured data volume to be transmitted is overlarge according to the data volume to be transmitted when the terminal equipment triggers the SDT process, wherein the network equipment can reconfigure the data volume of the SDT. For example, the first parameter includes a duration of the SDT failure detection timer, the network device determines that the duration of the SDT failure detection timer is too short, at which time the network device may reconfigure the duration of the SDT failure detection timer, and so on.

The second parameter is a radio link parameter of the SDT process, and is used for assisting the network device in judging whether the terminal device has a radio link problem in the SDT process.

The second parameter may comprise at least one of:

d. and measuring a downlink reference signal.

The downlink reference signal measurements may include synchronization signal blocks (Synchronization Signal Block, SSBs) and/or Positioning reference signals (Positioning REFERENCE SIGNAL, PRS).

E. And second indication information.

The second indication information is used for indicating whether the terminal equipment executes the SDT process for a plurality of times, and in the embodiment of the application, the execution of the SDT process for a plurality of times means that the SDT process is executed twice or more.

The multiple execution of the SDT procedure indicates that the terminal device does not succeed in executing the SDT procedure for some reasons, and therefore needs to re-execute the SDT procedure again, where the terminal device records corresponding parameters for assisting the network device in judging a potential problem in the SDT procedure.

In one embodiment, the second indication information includes resource configuration information of an SDT procedure based on a preconfigured resource, or includes resource configuration information of an SDT procedure based on random access. The resource configuration information may include time domain resources, frequency domain resources, and the like, corresponding to performing the SDT procedure.

When the terminal device executes the SDT process for a plurality of times, including the SDT process based on the pre-configured resource, the second indication information may include resource configuration information of the SDT process based on the pre-configured resource, and the resource configuration information of the SDT process based on the pre-configured resource may include time domain resources, frequency domain resources, and the like used by the terminal device to execute the SDT process based on the pre-configured resource; when the SDT procedure performed by the terminal device for a plurality of times includes the SDT procedure based on random access, the second indication information may include resource configuration information of the SDT procedure based on random access, and the resource configuration information of the SDT procedure based on random access may include time domain resources, frequency domain resources, and the like used by the terminal device to perform the SDT procedure based on random access.

The network device may determine that the terminal device performed the SDT procedure a plurality of times after receiving the second indication information.

F. and third indication information.

The third indication information is used for indicating whether the terminal equipment triggers a random access procedure in an SDT procedure based on the pre-configured resources.

Since the terminal device preferentially judges whether the CG-SDT resource is valid or not when the terminal device is simultaneously configured with the CG-SDT resource and the RA-SDT resource, if so, the terminal device initiates an SDT process based on the pre-configured resource. Therefore, if the terminal device triggers the random access procedure under the condition that the pre-configured resource is valid, the CG-SDT resource which is initially valid is not valid. For example, when there is no suitable SSB, the terminal device triggers a random access procedure in a pre-configured resource based SDT procedure.

G. Fourth indication information.

The fourth indication information is used for indicating whether the terminal equipment has random access problem. The random access problem may be, for example, that the number of times the terminal device attempts to initiate random access reaches a pre-configured maximum number. The maximum number of preconfigured times can be configured by the network equipment, when the terminal equipment initiates the random access process, if the random access fails, the terminal equipment can try to initiate the random access again. For example, if the maximum number of times of the pre-configuration is 8, the terminal device does not succeed in the random access process of multiple times of the terminal device in the SDT process, and when the number of times of the terminal device attempting the random access reaches 8 times, it is determined that the random access problem occurs in the terminal device. The terminal device may record fourth indication information for indicating to the network device whether the terminal device has a random access problem.

The second parameter includes at least one of a downlink reference signal measurement result, second indication information, third indication information, and fourth indication information, and the network device may determine whether a quality problem (including uplink and/or downlink) of the wireless link occurs in the SDT execution process by the terminal device according to the second parameter. If the network device determines that the terminal device has a radio link quality problem in the SDT execution process according to the second parameter, the network device may optimize RA-SDT resource configuration, CG-SDT resource configuration, RSRP threshold configuration, and the like, so as to reduce the radio link quality problem that may exist.

The third parameter is a resource allocation parameter of the SDT process, and is used for assisting the network device to determine whether the SDT resource allocated to the terminal device is effectively utilized. The third parameters include:

h. The third parameter includes fifth indication information.

The fifth indication information is used to indicate whether the terminal device triggers a random access based SDT procedure when the pre-configured resources are configured. When the terminal equipment is configured with the pre-configured resources, if the pre-configured resources are valid, the terminal equipment initiates an SDT process based on the pre-configured resources.

If the fifth indication information indicates that the terminal equipment does not trigger the SDT process based on random access when the pre-configured resources are not configured, the pre-configured resources configured for the terminal equipment are effectively utilized; if the fifth indication information indicates that the terminal equipment triggers the SDT process based on random access when the pre-configured resources are configured, the pre-configured resources configured by the terminal equipment are not effectively utilized.

Therefore, the network device may determine whether the preconfigured resource is effectively utilized according to the fifth indication information, if not, the network device may optimize the configuration of the preconfigured resource, for example, may set the preconfigured resource for transmission of other data, for example, determine, in combination with other reported SDT process parameters, a reason why the preconfigured resource is invalid, so that when the subsequent terminal device executes the SDT process, the SDT process can be executed in a manner based on the preconfigured resource, and so on, so as to reduce the waste of resources.

S44, the terminal equipment sends a terminal information response message to the network equipment.

After the terminal device records the SDT process parameters, the terminal device may report the SDT process parameters to the network device. In one possible implementation, the terminal device may report the SDT process parameter to the network device through a terminal information response message. Specifically, the terminal device sends a terminal information response message to the network device, where the terminal information response message includes SDT process parameters.

After the network device receives the SDT process parameters reported by the terminal device, the network device may optimize SDT resources or parameter configuration according to the SDT process parameters. The optimization of specific resource or parameter configuration may be referred to the above embodiments, and will not be described herein.

Fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application, and as shown in fig. 5, the communication device 50 includes:

A recording module 51, configured to record SDT process parameters when the SDT process successfully completed includes an SDT exception;

A reporting module 52, configured to report the SDT process parameter to a network device.

In one possible embodiment, the SDT exception includes at least one of:

the terminal equipment generates a random access problem;

In one possible embodiment, the first parameter includes at least one of:

The duration of the SDT failure detection timer.

In one possible embodiment, the second parameter includes at least one of:

downlink reference signal measurement results;

An RRC resume message;

An RRC release message;

The RRC state suspends the configuration message.

In one possible implementation, the reporting module 52 is specifically configured to:

The communication device provided by the embodiment of the application can execute the technical scheme shown in the embodiment of the method, and the implementation principle and the beneficial effects are similar, and are not repeated here.

Fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application, and as shown in fig. 6, the communication device 60 includes:

And the receiving module 61 is configured to receive an SDT process parameter reported by a terminal device, where the SDT process parameter indicates that an SDT abnormality is included in an SDT process successfully completed by the terminal device.

In one possible embodiment, the first parameter includes at least one of:

The duration of the SDT failure detection timer.

In one possible embodiment, the second parameter includes at least one of:

downlink reference signal measurement results;

In one possible implementation, the receiving module 61 is specifically configured to:

Fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present application. Referring to fig. 7, the terminal device 70 may include: a transceiver 71, a memory 72, a processor 73. The transceiver 71 may include: a transmitter and/or a receiver. The transmitter may also be referred to as a transmitter, transmit port, transmit interface, or the like, and the receiver may also be referred to as a receiver, receive port, receive interface, or the like. The transceiver 71, the memory 72, and the processor 73 are illustratively interconnected by a bus 74.

Memory 72 is used to store program instructions;

the processor 73 is configured to execute the program instructions stored in the memory, so as to cause the terminal device 70 to execute any of the communication methods described above.

Wherein the receiver of the transceiver 71 is operable to perform the receiving function of the terminal device in the communication method described above.

Fig. 8 is a schematic structural diagram of a network device according to an embodiment of the present application. Referring to fig. 8, the network device 80 may include: a transceiver 81, a memory 82, a processor 83. The transceiver 81 may include: a transmitter and/or a receiver. The transmitter may also be referred to as a transmitter, transmit port, transmit interface, or the like, and the receiver may also be referred to as a receiver, receive port, receive interface, or the like. The transceiver 81, the memory 82, and the processor 83 are illustratively interconnected by a bus 84.

The memory 82 is used for storing program instructions;

The processor 83 is configured to execute the program instructions stored in the memory, so as to cause the network device 80 to execute any of the communication methods described above.

The receiver of the transceiver 81 may be used to perform the receiving function of the network device in the above communication method.

Embodiments of the present application provide a computer-readable storage medium having stored therein computer-executable instructions for implementing the above-described communication method when the computer-executable instructions are executed by a processor.

Embodiments of the present application may also provide a computer program product executable by a processor, which when executed, may implement a communication method performed by any of the above-described terminal devices or network devices.

The communication device, the computer readable storage medium and the computer program product of the embodiments of the present application may execute the communication method executed by the terminal device and the network device, and specific implementation processes and beneficial effects thereof are referred to above and are not described herein.

In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the method embodiments described above may be performed by hardware associated with program instructions. The aforementioned computer program may be stored in a computer readable storage medium. The computer program, when executed by a processor, implements steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims

A communication method, applied to a terminal device, comprising:

recording SDT process parameters when the SDT abnormality is included in the successfully completed SDT process of small data transmission;

And reporting the SDT process parameters to network equipment.
The method of claim 1, wherein the SDT exception comprises at least one of:

the time length between the completion time of the SDT process and the overtime time of the SDT failure detection timer is smaller than or equal to the first time length;

the terminal equipment generates a random access problem;

the terminal equipment triggers a random access process in an SDT process based on pre-configured resources;

the terminal device triggers an SDT process based on random access when the pre-configured resources are configured.
The method of claim 2, wherein the first duration is a duration configured by the network device.
A method according to any one of claims 1-3, wherein the SDT process parameter comprises at least one of:

a first parameter, wherein the first parameter is a configuration parameter for triggering the SDT process;

a second parameter, wherein the second parameter is a radio link parameter of the SDT process;

And a third parameter, wherein the third parameter is a resource configuration parameter of the SDT process.
The method of claim 4, wherein the first parameter comprises at least one of:

the terminal equipment triggers the data quantity to be transmitted in the SDT process;

The first indication information is used for indicating whether new SDT data arrives in the SDT process;

The duration of the SDT failure detection timer.
The method according to claim 4 or 5, wherein the second parameter comprises at least one of:

downlink reference signal measurement results;

Second indication information, the second indication information is used for indicating whether the terminal equipment executes SDT process for a plurality of times;

third indication information, the third indication information is used for indicating whether the terminal equipment triggers a random access process in an SDT process based on preconfigured resources;

and fourth indication information, wherein the fourth indication information is used for indicating whether the terminal equipment generates random access problem or not.
The method of claim 6, wherein the downlink reference signals are synchronization signal blocks, SSBs, and/or positioning reference signals, PRSs.
The method according to claim 6 or 7, wherein the second indication information includes resource configuration information of an SDT procedure based on a preconfigured resource; or the second indication information comprises resource configuration information of an SDT process based on random access.
The method of any of claims 4-8, wherein the third parameter comprises fifth indication information, wherein:

The fifth indication information is used for indicating whether the terminal equipment triggers an SDT process based on random access when the pre-configured resources are configured.
The method according to any one of claims 1-9, wherein the method further comprises:

The terminal device receives a first radio resource control, RRC, message from the network device during operation of the SDT failure detection timer.
The method of claim 10, wherein the first RRC message includes any one of:

An RRC resume message;

An RRC release message;

The RRC state suspends the configuration message.
The method according to claim 10 or 11, wherein the starting time of the SDT failure detection timer is the time at which the terminal device initiates the SDT procedure;

The end time of the SDT failure detection timer is the time when the terminal device receives the first RRC message.
The method according to any one of claims 1-12, wherein said reporting the SDT process parameter to a network device comprises:

And sending a terminal information response message to the network equipment, wherein the terminal information response message comprises the SDT process parameter, and the terminal information response message is a response message of a terminal information request message.
A method of communication, for use with a network device, comprising:

and receiving the SDT process parameters reported by the terminal equipment, wherein the SDT process parameters indicate that the SDT process successfully completed by the terminal equipment comprises SDT abnormality.
The method of claim 14, wherein the SDT process parameter comprises at least one of:

a first parameter, wherein the first parameter is a configuration parameter for triggering the SDT process;

a second parameter, wherein the second parameter is a radio link parameter of the SDT process;

And a third parameter, wherein the third parameter is a resource configuration parameter of the SDT process.
The method of claim 15, wherein the first parameter comprises at least one of:

the terminal equipment triggers the data quantity to be transmitted in the SDT process;

The first indication information is used for indicating whether new SDT data arrives in the SDT process;

The duration of the SDT failure detection timer.
The method according to claim 15 or 16, wherein the second parameter comprises at least one of:

downlink reference signal measurement results;

Second indication information, the second indication information is used for indicating whether the terminal equipment executes SDT process for a plurality of times;

third indication information, the third indication information is used for indicating whether the terminal equipment triggers a random access process in an SDT process based on preconfigured resources;

and fourth indication information, wherein the fourth indication information is used for indicating whether the terminal equipment generates random access problem or not.
The method of claim 17, wherein the downlink reference signals are SSBs and/or PRSs.
The method according to claim 17 or 18, wherein the second indication information includes resource configuration information of an SDT procedure based on preconfigured resources; or the second indication information comprises resource configuration information of an SDT process based on random access.
The method of any of claims 15-19, wherein the third parameter comprises fifth indication information, wherein:

The fifth indication information is used for indicating whether the terminal equipment triggers an SDT process based on random access when the pre-configured resources are configured.
The method according to any one of claims 14-20, wherein the receiving SDT procedure parameters reported by the terminal device includes:

And receiving a terminal information response message from the terminal equipment, wherein the terminal information response message comprises the SDT process parameter, and the terminal information response message is a response message of a terminal information request message.
A communication device, comprising:

the recording module is used for recording SDT process parameters when the SDT abnormality is included in the successfully completed SDT process;

And the reporting module is used for reporting the SDT process parameters to the network equipment.
The apparatus of claim 22, wherein the SDT exception comprises at least one of:

the time length between the completion time of the SDT process and the overtime time of the SDT failure detection timer is smaller than or equal to the first time length;

the terminal equipment generates random access problem;

the terminal equipment triggers a random access process in an SDT process based on pre-configured resources;

the terminal device triggers an SDT process based on random access when the pre-configured resources are configured.
The apparatus of claim 23, wherein the first duration is a duration configured by the network device.
The apparatus of any one of claims 22-24, wherein the SDT process parameter comprises at least one of:

a first parameter, wherein the first parameter is a configuration parameter for triggering the SDT process;

a second parameter, wherein the second parameter is a radio link parameter of the SDT process;

And a third parameter, wherein the third parameter is a resource configuration parameter of the SDT process.
The apparatus of claim 25, wherein the first parameter comprises at least one of:

The terminal equipment triggers the data quantity to be transmitted in the SDT process;

The first indication information is used for indicating whether new SDT data arrives in the SDT process;

The duration of the SDT failure detection timer.
The apparatus of claim 25 or 26, wherein the second parameter comprises at least one of:

downlink reference signal measurement results;

the second indication information is used for indicating whether the terminal equipment executes the SDT process for a plurality of times;

third indication information, the third indication information is used for indicating whether the terminal equipment triggers a random access process in an SDT process based on preconfigured resources;

and fourth indication information, wherein the fourth indication information is used for indicating whether the terminal equipment generates random access problem or not.
The apparatus of claim 27, wherein the downlink reference signals are SSBs and/or PRSs.
The apparatus according to claim 27 or 28, wherein the second indication information includes resource configuration information of an SDT procedure based on preconfigured resources; or the second indication information comprises resource configuration information of an SDT process based on random access.
The apparatus of any of claims 25-29, wherein the third parameter comprises fifth indication information, wherein:

the fifth indication information is used for indicating whether the terminal equipment triggers an SDT process based on random access when the pre-configured resource is configured.
The apparatus of any one of claims 22-30, further comprising a receiving module configured to:

A first RRC message is received from the network device during operation of the SDT failure detection timer.
The apparatus of claim 31, wherein the first RRC message includes any one of:

An RRC resume message;

An RRC release message;

The RRC state suspends the configuration message.
The apparatus according to claim 31 or 32, wherein the starting time of the SDT failure detection timer is the time at which the terminal device initiates the SDT procedure;

The end time of the SDT failure detection timer is the time when the terminal device receives the first RRC message.
The apparatus according to any one of claims 22-33, wherein the reporting module is specifically configured to:

And sending a terminal information response message to the network equipment, wherein the terminal information response message comprises the SDT process parameter, and the terminal information response message is a response message of a terminal information request message.
A communication device, comprising:

and the receiving module is used for receiving the SDT process parameters reported by the terminal equipment, wherein the SDT process parameters indicate that the SDT process successfully completed by the terminal equipment comprises SDT abnormality.
The apparatus of claim 35, wherein the SDT process parameter comprises at least one of:

a first parameter, wherein the first parameter is a configuration parameter for triggering the SDT process;

a second parameter, wherein the second parameter is a radio link parameter of the SDT process;

And a third parameter, wherein the third parameter is a resource configuration parameter of the SDT process.
The apparatus of claim 36, wherein the first parameter comprises at least one of:

the terminal equipment triggers the data quantity to be transmitted in the SDT process;

The first indication information is used for indicating whether new SDT data arrives in the SDT process;

The duration of the SDT failure detection timer.
The apparatus of claim 36 or 37, wherein the second parameter comprises at least one of:

downlink reference signal measurement results;

Second indication information, the second indication information is used for indicating whether the terminal equipment executes SDT process for a plurality of times;

third indication information, the third indication information is used for indicating whether the terminal equipment triggers a random access process in an SDT process based on preconfigured resources;

and fourth indication information, wherein the fourth indication information is used for indicating whether the terminal equipment generates random access problem or not.
The apparatus of claim 38, wherein the downlink reference signals are SSBs and/or PRSs.
The apparatus according to claim 38 or 39, wherein the second indication information includes resource configuration information of an SDT procedure based on preconfigured resources; or the second indication information comprises resource configuration information of an SDT process based on random access.
The apparatus of any one of claims 36-40, wherein the third parameter comprises fifth indication information, wherein:

The fifth indication information is used for indicating whether the terminal equipment triggers an SDT process based on random access when the pre-configured resources are configured.
The apparatus of any one of claims 35-41, wherein the receiving module is specifically configured to:

And receiving a terminal information response message from the terminal equipment, wherein the terminal information response message comprises the SDT process parameter, and the terminal information response message is a response message of a terminal information request message.
A terminal device, comprising: a transceiver, a processor, a memory;

The memory stores computer-executable instructions;

The processor executing computer-executable instructions stored in the memory causing the processor to perform the communication method of any one of claims 1-21.
A network device, comprising: a transceiver, a processor, a memory;

The memory stores computer-executable instructions;

The processor executing computer-executable instructions stored in the memory causes the processor to perform the communication method of any one of claims 22-42.
A computer readable storage medium having stored therein computer executable instructions for implementing the communication method of any of claims 1-21 or 22-42 when executed by a processor.
A computer program product comprising a computer program which, when executed by a processor, implements the communication method according to any one of claims 1-21 or 22-42.