Data transmission method, device and computer readable storage medium

Abstract

The present application provides a data transmission method, device and computer-readable storage medium. The method of the present application pre-configures the terminal device UE to report the relevant information of the 2-step-random access process to the terminal device UE through the network device, and the UE obtains the relevant information of the 2-step-random access process according to the reporting information type configuration; sends the relevant information of the 2-step-random access process to the network device according to the reporting mode configuration; the network device receives the relevant information of the 2-step-random access process sent by the UE according to the reporting mode configuration, thereby realizing the automatic collection and reporting of the relevant information of the 2-step-random access process, meeting the operator's needs for automatic collection and automatic maintenance of network optimization, and can improve the success rate of 2-step-random access.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a data transmission method, device and computer-readable storage medium. Background Art

[0002] With the continuous development of communication technology, the fifth-generation mobile communication technology (5th-Generation, 5G) has a wide range of application scenarios. Since terminal devices need to access network devices, a random access process is still required in 5G technology.

[0003] In order to reduce the signaling burden of data transmission, 5G technology introduces a 2-step random access process, which simplifies and optimizes the traditional 4-step random access process, improves the performance of terminal devices accessing the network and sending data, and reduces latency to meet the diverse business needs of 5G. Although the 2-step random access process brings certain performance and latency improvements, improper configuration and use will cause frequent access failures of terminal devices, which will reduce the overall performance of the network.

[0004] The success of the 2-step random access process depends on many factors such as the signal quality of the network, network load, UE (User Equipment) distribution, business volume, etc. How to automatically collect relevant information (such as access failure information) of the 2-step random access process has become a technical problem that needs to be solved for network operators to automatically collect and maintain network optimization to improve the success rate of random access.

[0005] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Summary of the invention

[0006] The present application provides a data transmission method, device and computer-readable storage medium for automatically collecting relevant information of a 2-step random access process to meet the operator's needs for automatic collection and automatic maintenance of network optimization.

[0007] In a first aspect, an embodiment of the present application provides a data transmission method, which is applied to a terminal device UE, and includes: obtaining relevant information of a 2-step random access process according to a report information type configuration; and sending the relevant information according to a report mode configuration.

[0008] In one possible design, the method further includes: receiving the report information type configuration and the report mode configuration.

[0009] In one possible design, the sending of the relevant information according to the reporting mode configuration includes at least one of the following: periodically sending the relevant information according to the reporting period in the reporting mode configuration; sending the relevant information when a report request is received; and sending the relevant information when it is determined that at least one trigger condition in the reporting mode configuration is met.

[0010] In one possible design, the report request is included in an RRC (Radio Resource Control) message or a system broadcast message.

[0011] In one possible design, the trigger condition includes at least one of the following: the number of retransmissions of the random access message is greater than or equal to the maximum number of retransmissions of the random access message; the number of retransmissions of the random access message is greater than or equal to the first preset threshold value; the number of retransmissions of the random access preamble is greater than or equal to the maximum number of retransmissions of the random access preamble; the number of retransmissions of the random access preamble is greater than or equal to the second preset threshold value; the random access feedback message contains a backoff indication of the network device; within the first preset time period, the number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message, or the number of retransmissions of the random access message is greater than the third preset threshold value; within the second preset time period, the number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble, or the number of retransmissions of the random access preamble is greater than the fourth preset threshold value; within the third preset time period, the number of times the backoff indication of the network device is contained in the random access feedback message is greater than or equal to the fifth preset threshold value.

[0012] In one possible design, the method also includes: after access fails using the 2-step random access process, when access is performed using the 4-step random access process, the access failure information of the 2-step random access process is included in the third message of the 4-step random access process and sent to the network device.

[0013] In one possible design, the reasons for the access failure using the 2-step random access process include at least one of the following: the number of retransmissions of the random access message is greater than or equal to the maximum number of retransmissions of the random access message; the number of retransmissions of the random access preamble code is greater than the maximum number of retransmissions of the random access preamble code; the random access feedback message includes a backoff indication of the network device.

[0014] In one possible design, the report information type configuration includes at least one of the following: 2-step-random access statistical information within a fourth preset time period; 2-step-random access statistical information since the last sending of relevant information of the 2-step-random access process; access failure information of each 2-step-random access failure; access failure information of the last 2-step-random access failure; UE's geographic location information; UE's path loss value; the cell where the UE is located; the UE's motion status; and the UE's motion speed information.

[0015] In one possible design, the 2-step random access statistical information includes at least one of the following:

[0016] The number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message - the number of 2-step random access processes; the number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble - the number of 2-step random access processes; the number of 2-step random access processes in which the received random access feedback message contains a fallback indication of the network device.

[0017] In a possible design, the access failure information includes at least one of the following: the cause of the access failure; the RSRP (Reference Signal Receiving Power) of the UE; the load size of the PUSCH (Physical Uplink Shared Channel) corresponding to the random access message; the identification information of the BWP (BandWidth Part); the SSB (Synchronization Signal Block) index or the CSI-RS (Channel-state information RS) index; and the triggering reason of the step 2-random access process.

[0018] In one possible design, the reasons leading to access failure include at least one of the following: the number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message; the number of retransmissions of the random access preamble code is greater than the maximum number of retransmissions of the random access preamble code; the random access feedback message includes a backoff indication of the network device.

[0019] In a possible design, before obtaining relevant information of the 2-step random access process according to the report information type configuration, it also includes: receiving a reporting indication of relevant information of the 2-step random access process.

[0020] In a second aspect, an embodiment of the present application provides a data transmission method, applied to a network device, including:

[0021] Relevant information of the step 2-random access process is received, where the relevant information is acquired by the UE according to the report information type configuration and sent according to the report mode configuration.

[0022] In one possible design, the method further includes: sending the report information type configuration and the report mode configuration to the UE.

[0023] In one possible design, the method further includes: sending a 2-step random access process related information reporting indication to the UE.

[0024] In one possible design, the receiving relevant information of the 2-step-random access process includes at least one of the following: periodically receiving relevant information of the 2-step-random access process according to a reporting period in the reporting mode configuration; receiving relevant information of the 2-step-random access process sent by the UE when receiving a report request sent by a network device; receiving relevant information of the 2-step-random access process sent by the UE when determining that at least one trigger condition in the reporting mode configuration is met.

[0025] In one possible design, the report request is included in an RRC message or a system broadcast message.

[0026] In one possible design, the trigger condition includes at least one of the following: the number of retransmissions of the random access message is greater than or equal to the maximum number of retransmissions of the random access message; the number of retransmissions of the random access message is greater than or equal to the first preset threshold value; the number of retransmissions of the random access preamble is greater than or equal to the maximum number of retransmissions of the random access preamble; the number of retransmissions of the random access preamble is greater than or equal to the second preset threshold value; the random access feedback message contains a backoff indication of the network device; within the first preset time period, the number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message, or the number of retransmissions of the random access message is greater than the third preset threshold value; within the second preset time period, the number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble, or the number of retransmissions of the random access preamble is greater than the fourth preset threshold value; within the third preset time period, the number of times the backoff indication of the network device is contained in the random access feedback message is greater than or equal to the fifth preset threshold value.

[0027] In one possible design, the report information type configuration includes at least one of the following: 2-step-random access statistical information within a fourth preset time period; 2-step-random access statistical information since the last time the relevant information was sent; access failure information of each 2-step-random access failure; access failure information of the last 2-step-random access failure; UE's geographic location information; UE's path loss value; the cell where the UE is located; the UE's motion status; and the UE's motion speed information.

[0028] In one possible design, the 2-step random access statistical information includes at least one of the following:

[0029] The number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message - the number of 2-step random access processes; the number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble - the number of 2-step random access processes; the number of 2-step random access processes in which the received random access feedback message contains a fallback indication of the network device.

[0030] In one possible design, the access failure information includes at least one of the following: the cause of the access failure; the RSRP of the UE; the load size of the PUSCH corresponding to the random access message; the identification information of the BWP; the SSB index or the CSI-RS index; and the triggering reason of the step 2-random access process.

[0031] In one possible design, the reasons leading to access failure include at least one of the following: the number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message; the number of retransmissions of the random access preamble code is greater than the maximum number of retransmissions of the random access preamble code; the random access feedback message includes a backoff indication of the network device.

[0032] In one possible design, the method also includes: receiving a third message containing access failure information of a 2-step random access process, which is sent by the UE when it accesses using a 4-step random access process after failing to access using a 2-step random access process.

[0033] In one possible design, the method further includes: optimizing configuration information of the 2-step random access process based on a received third message containing access failure information of the 2-step random access process.

[0034] In one possible design, the reasons for the access failure using the 2-step random access process include at least one of the following: the number of retransmissions of the random access message is greater than or equal to the maximum number of retransmissions of the random access message; the number of retransmissions of the random access preamble code is greater than the maximum number of retransmissions of the random access preamble code; the random access feedback message includes a backoff indication of the network device.

[0035] In one possible design, the method further includes: optimizing configuration information of the 2-step random access process based on received relevant information of the 2-step random access process.

[0036] In a third aspect, an embodiment of the present application also provides a terminal device, including: an information acquisition module, used to acquire relevant information of a 2-step random access process according to a report information type configuration; and a reporting module, used to send the relevant information according to a report mode configuration.

[0037] In one possible design, the terminal device also includes: a receiving module, used to receive the report information type configuration and the report mode configuration.

[0038] In one possible design, the reporting module is also used to: periodically send the relevant information according to the reporting period in the reporting mode configuration; send the relevant information when a report request is received; and send the relevant information when it is determined that at least one trigger condition in the reporting mode configuration is met.

[0039] In one possible design, the report request is included in an RRC message or a system broadcast message.

[0040] In one possible design, the trigger condition includes at least one of the following: the number of retransmissions of the random access message is greater than or equal to the maximum number of retransmissions of the random access message; the number of retransmissions of the random access message is greater than or equal to the first preset threshold value; the number of retransmissions of the random access preamble is greater than or equal to the maximum number of retransmissions of the random access preamble; the number of retransmissions of the random access preamble is greater than or equal to the second preset threshold value; the random access feedback message contains a backoff indication of the network device; within the first preset time period, the number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message, or the number of retransmissions of the random access message is greater than the third preset threshold value; within the second preset time period, the number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble, or the number of retransmissions of the random access preamble is greater than the fourth preset threshold value; within the third preset time period, the number of times the backoff indication of the network device is contained in the random access feedback message is greater than or equal to the fifth preset threshold value.

[0041] In one possible design, the reporting module is also used to: after access fails using the 2-step random access process, when access is performed using the 4-step random access process, include the access failure information of the 2-step random access process in the third message of the 4-step random access process and send it to the network device.

[0042] In one possible design, the reasons for the access failure using the 2-step random access process include at least one of the following: the number of retransmissions of the random access message is greater than or equal to the maximum number of retransmissions of the random access message; the number of retransmissions of the random access preamble code is greater than the maximum number of retransmissions of the random access preamble code; the random access feedback message includes a backoff indication of the network device.

[0043] In one possible design, the report information type configuration includes at least one of the following: 2-step-random access statistical information within a fourth preset time period; 2-step-random access statistical information since the last sending of relevant information of the 2-step-random access process; access failure information of each 2-step-random access failure; access failure information of the last 2-step-random access failure; UE's geographic location information; UE's path loss value; the cell where the UE is located; the UE's motion status; and the UE's motion speed information.

[0044] In one possible design, the 2-step random access statistical information includes at least one of the following:

[0045] The number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message - the number of 2-step random access processes; the number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble - the number of 2-step random access processes; the number of 2-step random access processes in which the received random access feedback message contains a fallback indication of the network device.

[0046] In one possible design, the access failure information includes at least one of the following: the cause of the access failure; the RSRP of the UE; the load size of the PUSCH corresponding to the random access message; the identification information of the BWP; the SSB index or the CSI-RS index; and the triggering reason of the step 2-random access process.

[0047] In one possible design, the reasons leading to access failure include at least one of the following: the number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message; the number of retransmissions of the random access preamble code is greater than the maximum number of retransmissions of the random access preamble code; the random access feedback message includes a backoff indication of the network device.

[0048] In one possible design, the receiving module is also used to: receive a reporting indication of information related to the step 2-random access process.

[0049] In a fourth aspect, an embodiment of the present application further provides a network device, including: a receiving module, used to receive relevant information of a 2-step random access process, wherein the relevant information is obtained by the UE according to a report information type configuration and sent according to a report mode configuration.

[0050] In one possible design, the network device also includes: a sending module, used to send the report information type configuration and the report mode configuration to the UE.

[0051] In one possible design, the sending module is also used to: send a 2-step random access process related information reporting indication to the UE.

[0052] In one possible design, the receiving module is also used to: periodically receive relevant information of the 2-step random access process according to a reporting period in the reporting mode configuration; receive relevant information of the 2-step random access process sent by the UE when receiving a report request sent by a network device; and receive relevant information of the 2-step random access process sent by the UE when it is determined that at least one trigger condition in the reporting mode configuration is met.

[0053] In one possible design, the report request is included in an RRC message or a system broadcast message.

[0054] In one possible design, the trigger condition includes at least one of the following: the number of retransmissions of the random access message is greater than or equal to the maximum number of retransmissions of the random access message; the number of retransmissions of the random access message is greater than or equal to the first preset threshold value; the number of retransmissions of the random access preamble is greater than or equal to the maximum number of retransmissions of the random access preamble; the number of retransmissions of the random access preamble is greater than or equal to the second preset threshold value; the random access feedback message contains a backoff indication of the network device; within the first preset time period, the number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message, or the number of retransmissions of the random access message is greater than the third preset threshold value; within the second preset time period, the number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble, or the number of retransmissions of the random access preamble is greater than the fourth preset threshold value; within the third preset time period, the number of times the backoff indication of the network device is contained in the random access feedback message is greater than or equal to the fifth preset threshold value.

[0055] In one possible design, the report information type configuration includes at least one of the following: 2-step-random access statistical information within a fourth preset time period; 2-step-random access statistical information since the last time the relevant information was sent; access failure information of each 2-step-random access failure; access failure information of the last 2-step-random access failure; UE's geographic location information; UE's path loss value; the cell where the UE is located; the UE's motion status; and the UE's motion speed information.

[0056] In one possible design, the 2-step random access statistical information includes at least one of the following:

[0057] The number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message - the number of 2-step random access processes; the number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble - the number of 2-step random access processes; the number of 2-step random access processes in which the received random access feedback message contains a fallback indication of the network device.

[0058] In one possible design, the access failure information includes at least one of the following: the cause of the access failure; the RSRP of the UE; the load size of the PUSCH corresponding to the random access message; the identification information of the BWP; the SSB index or the CSI-RS index; and the triggering reason of the step 2-random access process.

[0059] In one possible design, the reasons leading to access failure include at least one of the following: the number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message; the number of retransmissions of the random access preamble code is greater than the maximum number of retransmissions of the random access preamble code; the random access feedback message includes a backoff indication of the network device.

[0060] In one possible design, the receiving module is also used to: receive a third message containing access failure information of the 2-step-random access process, which is sent by the UE when it uses the 4-step-random access process to access after failing to access using the 2-step-random access process.

[0061] In one possible design, the network device also includes: an optimization module, used to optimize the configuration information of the 2-step-random access process based on a received third message containing access failure information of the 2-step-random access process.

[0062] In one possible design, the reasons for the access failure using the 2-step random access process include at least one of the following: the number of retransmissions of the random access message is greater than or equal to the maximum number of retransmissions of the random access message; the number of retransmissions of the random access preamble code is greater than the maximum number of retransmissions of the random access preamble code; the random access feedback message includes a backoff indication of the network device.

[0063] In one possible design, the optimization module is further used to optimize the configuration information of the 2-step random access process based on the received relevant information of the 2-step random access process.

[0064] In the fifth aspect, an embodiment of the present application also provides a terminal device, including: a processor, a memory; the memory stores computer execution instructions; the processor executes the computer execution instructions stored in the memory, so that the processor executes any possible data transmission method as described in the first aspect above.

[0065] In the sixth aspect, an embodiment of the present application also provides a network device, comprising: a processor, a memory; the memory stores computer execution instructions; the processor executes the computer execution instructions stored in the memory, so that the processor executes any possible data transmission method as described in the second aspect above.

[0066] In the seventh aspect, an embodiment of the present application also provides a computer-readable storage medium, which stores computer execution instructions. When the computer execution instructions are executed by a processor, they are used to implement any possible data transmission method as described in the first aspect or the second aspect above.

[0067] The present application provides a data transmission method, device and computer-readable storage medium. The network device pre-configures the UE to report the relevant information of the 2-step-random access process to the UE through the report information type configuration and the report mode configuration. The UE obtains the relevant information of the 2-step-random access process according to the report information type configuration; sends the relevant information of the 2-step-random access process to the network device according to the report mode configuration; the network device receives the relevant information of the 2-step-random access process sent by the UE according to the report mode configuration, thereby realizing the automatic collection and reporting of the relevant information of the 2-step-random access process, meeting the operator's needs for automatic collection and automatic maintenance of network optimization, and being able to improve the success rate of 2-step-random access. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0069] Figure 1 A schematic diagram of the communication system architecture provided in an embodiment of the present application;

[0070] Figure 2 A schematic diagram of a 4-step random access process provided in an embodiment of the present application;

[0071] Figure 3 A schematic diagram of a 2-step random access process provided in an embodiment of the present application;

[0072] Figure 4 A flow chart of a data transmission method provided in Example 1 of the present application;

[0073] Figure 5 A flow chart of a data transmission method provided in Embodiment 2 of the present application;

[0074] Figure 6 A schematic diagram of the structure of a terminal device provided in Embodiment 3 of the present application;

[0075] Figure 7 A schematic diagram of the structure of a terminal device provided in Embodiment 4 of the present application;

[0076] Figure 8 A schematic diagram of the structure of a network device provided in Embodiment 5 of the present application;

[0077] Fig. 9 A schematic diagram of the structure of a network device provided in Example 6 of the present application;

[0078] Fig.10 A schematic diagram of the structure of a terminal device provided in Embodiment 7 of the present application;

[0079] Fig.11 A structural diagram of a network device provided in Example 8 of the present application. DETAILED DESCRIPTION

[0080] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0081] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, unless otherwise specified. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices. In the description of the following embodiments, the meaning of "multiple" is more than two, unless otherwise clearly and specifically limited.

[0082] The data transmission method provided in this application can be applied to Figure 1 The communication system architecture diagram is shown in FIG. Figure 1 As shown, the communication system includes: a network device and a plurality of terminal devices, assuming that the plurality of terminal devices include terminal device 1, terminal device 2, terminal device 3 and terminal device 4 in the figure. It should be noted that, Figure 1The communication system shown can be applicable to different network standards, for example, it can be applicable to GSM (Global System of Mobile communication), CDMA (Code Division Multiple Access), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), LTE (Long Term Evolution) system and future 5G and other network standards. Optionally, the above communication system can be a system in the URLLC (Ultra-Reliable and Low Latency Communications) transmission scenario in a 5G communication system.

[0083] Therefore, optionally, the above-mentioned network device can be a BTS (Base Transceiver Station) and / or a base station controller in GSM or CDMA, or a NB (NodeB) and / or an RNC (Radio Network Controller) in WCDMA, or an evolved eNB (Evolutional NodeB) or eNodeB in LTE, or a relay station or access point, or a base station (gNB) in a future 5G network, etc., and the present application is not limited here.

[0084] The above-mentioned terminal equipment can be a wireless terminal or a wired terminal. The wireless terminal can be a device that provides voice and / or other business data connectivity to users, a handheld device with wireless connection function, or other processing equipment connected to a wireless modem. The wireless terminal can communicate with one or more core network devices via RAN (Radio Access Network). The wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal. For example, it can be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with the wireless access network. For another example, the wireless terminal can also be a PCS (Personal Communication Service) phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant) and other devices. The wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, an access terminal, a user terminal, a user agent, a user device or user equipment, without limitation. Optionally, the terminal device may also be a smart watch, a tablet computer or other device.

[0085] It should be noted that, for the convenience of description and understanding, in the specification and claims of the present application and the above-mentioned drawings, the "random access message" may correspond to MSGA in the 2-step random access process, the "random access feedback message" may correspond to MSGB in the 2-step random access process, the "first message" may correspond to MSG1 in the 4-step random access process, the "second message" may correspond to MSG2 in the 4-step random access process, the "third message" may correspond to MSG3 in the 4-step random access process, and the "fourth message" may correspond to MSG4 in the 4-step random access process.

[0086] Figure 2 A schematic diagram of a 4-step random access process provided in an embodiment of the present application. Figure 2 As shown, the 4-step random access process may include the following steps:

[0087] Step S201: UE sends a first message MSG1 to a network device, where MSG1 includes a random access preamble.

[0088] In this step, MSG1 may include a random access preamble code and may also include other information, which will not be described in detail in this embodiment.

[0089] Step S202: The network device sends a second message MSG2 to the UE.

[0090] In this step, MSG2 may be a random access response message, but is not limited to this message. MSG2 may also include one or more of a fallback indication, uplink authorization information, and a random access network temporary identifier. Of course, MSG2 may also include other information, which will not be described in detail in this embodiment.

[0091] Step S203: The UE sends a third message MSG3 to the network device.

[0092] In this step, MSG3 may be an RRC connection request message, but is not limited to this message. MSG3 may include a system architecture evolution temporary mobile station identifier, etc., and may also include other information, which will not be described in detail in this embodiment.

[0093] Step S204: The network device sends a fourth message MSG4 to the UE.

[0094] In this step, MSG4 may be a RRC connection establishment message, but is not limited to this message. MSG4 may include contention resolution, etc. MSG4 may also include other information, which will not be described in detail in this embodiment.

[0095] Figure 3 A schematic diagram of a 2-step random access process provided in an embodiment of the present application. Figure 3 As shown, the 2-step random access process may include the following steps:

[0096] Step S301: The UE sends a random access message MSGA to a network device. The MSGA includes a random access preamble and a payload sent on a PUSCH.

[0097] In this step, the UE sends a random access preamble through PRACH (Physical Random Access Channel) and sends a payload to the network device through PUSCH. In addition, MSGA can also carry other information such as UE identification, which will not be described in detail in this embodiment.

[0098] Step S302: The network device sends a random access feedback message MSGB to the UE, where the MSGB includes a confirmation indication.

[0099] In this step, the MSGB may include a confirmation indication. The MSGB may also include other information such as a UE identifier, which will not be described in detail in this embodiment.

[0100] It can be seen that the 2-step random access process simplifies and optimizes the traditional 4-step random access process, improves the performance of terminal devices in accessing the network and sending data, and reduces latency to meet the diverse business needs of 5G.

[0101] Specific application scenarios of this application: When the terminal device UE is configured with a 2-step random access process, the 2-step random access process brings certain performance and latency improvements, but improper configuration and use will cause frequent access failures of the terminal device, which will reduce the overall performance of the network. The success of the 2-step random access process depends on multiple factors such as the signal quality of the network, network load, UE distribution, and business volume.

[0102] The data transmission method provided in this application aims to automatically collect relevant information of the 2-step random access process, especially information on access failure, based on the above scenario, to meet the needs of various network operators for automatic collection and maintenance of network optimization, and to improve the success rate of random access.

[0103] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0104] Figure 4 This is a flow chart of a data transmission method provided in Example 1 of the present application. Figure 4 As shown, the specific steps of this method are as follows:

[0105] Step S401: The UE obtains relevant information of the 2-step random access process according to the report information type configuration.

[0106] Among them, the reporting information type configuration can be pre-configured by the network device, and the reporting information type configuration includes the information type of the relevant information of the 2-step random access process reported by the UE to the network device, which is used to indicate which information in the relevant information of the 2-step random access process that the UE needs to report to the network device.

[0107] The UE collects relevant information corresponding to the information type in the report information type configuration during the 2-step random access process according to the report information type configuration.

[0108] Step S402: The UE sends relevant information of the 2-step random access process to the network device according to the report mode configuration.

[0109] Among them, the reporting mode configuration can be pre-configured by the network device, and the reporting mode configuration includes the reporting mode used when the UE reports the relevant information of the 2-step random access process to the network device, and the configuration information required when reporting in the corresponding reporting mode.

[0110] For example, the reporting method can be a periodic report, in which case the reporting method configuration also includes the reporting period; the reporting method can be based on a network device request report; the reporting method can also be based on a conditional triggered report, in which case the reporting method configuration also includes the triggering condition, such as the triggering event type information, or the ID corresponding to the triggering event, etc.

[0111] The UE sends the relevant information of the 2-step random access process to the network device according to the reporting mode configuration when the condition for reporting the relevant information of the 2-step random access process to the network device is met.

[0112] Step S403: The network device receives the relevant information of the 2-step random access process sent by the UE according to the reporting mode configuration.

[0113] In the embodiment of the present application, the network device pre-configures the UE to report the relevant information of the 2-step-random access process to the UE through the report information type configuration and the report mode configuration. The UE obtains the relevant information of the 2-step-random access process according to the report information type configuration; sends the relevant information of the 2-step-random access process to the network device according to the report mode configuration; the network device receives the relevant information of the 2-step-random access process sent by the UE according to the report mode configuration, thereby realizing the automatic collection and reporting of the relevant information of the 2-step-random access process, meeting the operator's needs for automatic collection and automatic maintenance of network optimization, and being able to improve the success rate of 2-step-random access.

[0114] Figure 5 A flow chart of a data transmission method provided for Embodiment 2 of the present application. Based on the above Embodiment 1, in this embodiment, the network device sends a report information type configuration and a report mode configuration to the UE, and the UE receives the report information type configuration and the report mode configuration sent by the network device, and the pre-configuration of the report information type configuration and the report mode configuration has been completed. After receiving the relevant information of the 2-step-random access process reported by the UE, the network device optimizes the configuration information of the 2-step-random access process according to the received relevant information of the 2-step-random access process.

[0115] like Figure 5 As shown, the specific steps of this method are as follows:

[0116] Step S501: The network device sends a report information type configuration and a report mode configuration to a UE.

[0117] Among them, the reporting information type configuration can be pre-configured by the network device, and the reporting information type configuration includes the information type of the relevant information of the 2-step random access process reported by the UE to the network device, which is used to indicate which information in the relevant information of the 2-step random access process that the UE needs to report to the network device.

[0118] The reporting mode configuration may be pre-configured by the network device, and the reporting mode configuration includes the reporting mode used when the UE reports the relevant information of the 2-step-random access process to the network device, and the configuration information required when reporting in the corresponding reporting mode.

[0119] For example, the reporting method can be a periodic report, in which case the reporting method configuration also includes the reporting period; the reporting method can be based on a network device request report; the reporting method can also be based on a conditional triggered report, in which case the reporting method configuration also includes the triggering condition, such as the triggering event type information, or the ID corresponding to the triggering event, etc.

[0120] Step S502: The UE receives the report information type configuration and the report mode configuration sent by the network device.

[0121] In this embodiment, the report information type configuration includes at least one of the following: 2-step-random access statistical information within a fourth preset time period; 2-step-random access statistical information since the last time relevant information of the 2-step-random access process was sent to the network device; access failure information of each 2-step-random access failure; access failure information of the last 2-step-random access failure; UE's geographic location information; UE's path loss (Pathloss) value; the cell where the UE is located; the UE's movement status; and the UE's movement speed information.

[0122] The motion state of the UE may be stationary, fast moving, slow moving, etc. The geographical location information of the UE may come from base station positioning or GNSS (Global Navigation Satellite System) of the UE and other equipment, which will not be described in detail in this embodiment.

[0123] The movement speed information of the UE may be the average movement speed of the UE over a period of time.

[0124] The 2-step random access statistical information includes at least one of the following: the number of 2-step random access processes in which the number of retransmissions of MSGA is greater than the maximum number of retransmissions of MSGA; the number of 2-step random access processes in which the number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble; the number of 2-step random access processes in which the received MSGB contains a fallback indication of the network device.

[0125] Among them, the access failure information includes at least one of the following: the cause of the access failure; the RSRP parameter of the UE; 2-step - the load (Payload) size of the PUSCH corresponding to the MSGA during the random access process; 2-step - the identification information of the BWP of the random access process; 2-step - the SSB index or CSI-RS index corresponding to the random access process; 2-step - the triggering cause of the random access process.

[0126] Among them, the reasons leading to access failure include at least one of the following: the number of retransmissions of MSGA is greater than the maximum number of retransmissions of MSGA; the number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble; MSGB contains a fallback indication of the network device.

[0127] In this embodiment, the RSRP of the UE refers to the RSRP signal strength value of the UE itself when the UE selects the 2-step random access process.

[0128] Step S503: The UE obtains relevant information of the 2-step random access process according to the report information type configuration.

[0129] The UE sends the relevant information of the 2-step random access process to the network device according to the reporting mode configuration when the condition for reporting the relevant information of the 2-step random access process to the network device is met.

[0130] Step S504: The UE sends relevant information of the 2-step random access process to the network device according to the report mode configuration.

[0131] Specifically, depending on the different report mode configurations, this step can be implemented in any of the following ways:

[0132] A first possible implementation manner: according to a reporting period in a reporting mode configuration, periodically sending relevant information of the 2-step random access process to the network device.

[0133] A second possible implementation manner: when receiving a report request sent by the network device, the network device sends the relevant information of the 2-step random access process to the network device.

[0134] The report request may be included in an RRC message or a system broadcast message.

[0135] A third possible implementation manner: when it is determined that at least one trigger condition in the reporting mode configuration is met, relevant information of the 2-step random access process is sent to the network device.

[0136] The triggering condition may include at least one of the following: the number of retransmissions of the random access message MSGA during the 2-step random access process is greater than or equal to the maximum number of retransmissions of MSGA; the number of retransmissions of the random access message MSGA during the 2-step random access process is greater than or equal to the first preset threshold value; the number of retransmissions of the random access preamble during the 2-step random access process is greater than or equal to the maximum number of retransmissions of the random access preamble; the number of retransmissions of the random access preamble during the 2-step random access process is greater than or equal to the second preset threshold value; the random access feedback message MSGB during the 2-step random access process contains a fallback indication of the network device; Indication); within a first preset time period, the number of retransmissions of MSGA is greater than the maximum number of retransmissions of MSGA; within the first preset time period, the number of retransmissions of MSGA is greater than a third preset threshold value; within a second preset time period, the number of retransmissions of the random access preamble in the 2-step random access process is greater than the maximum number of retransmissions of the random access preamble; within the second preset time period, the number of retransmissions of the random access preamble in the 2-step random access process is greater than a fourth preset threshold value; within the third preset time period, the number of times that the fallback indication of the network device is included in the MSGB in the 2-step random access process is greater than or equal to the fifth preset threshold value.

[0137] In this embodiment, the maximum number of MSGA retransmissions, the maximum number of random access preamble retransmissions, the first preset time period, the second preset time period, the third preset time period, the first preset threshold value, the second preset threshold value, the third preset threshold value, the fourth preset threshold value, and the fifth preset threshold value can all be configured through network equipment according to actual application scenarios, and this embodiment does not make specific limitations here.

[0138] In addition, according to the actual application scenario, when the UE reports information to the network device according to the trigger conditions, it can adopt a combination of one or more of the above-mentioned trigger conditions, or it can also adopt other trigger conditions, or a combination of one or more other trigger conditions and the above-mentioned trigger conditions, which is not limited in this embodiment.

[0139] Step S505: The network device receives the relevant information of the 2-step random access process sent by the terminal device UE according to the reporting mode configuration.

[0140] Specifically, a possible implementation manner of this step is: periodically receiving relevant information of the 2-step random access process according to the reporting period in the reporting mode configuration.

[0141] Another possible implementation manner of this step is: receiving the relevant information of the 2-step random access process sent by the UE when receiving the report request sent by the network device.

[0142] Another possible implementation of this step is: receiving relevant information of the 2-step random access process sent by the UE when determining that at least one trigger condition in the reporting mode configuration is met.

[0143] Step S506: The network device optimizes the configuration information of the 2-step random access process according to the received relevant information of the 2-step random access process.

[0144] After receiving the relevant information of the 2-step random access process reported by the UE, the network device may optimize the configuration information of the 2-step random access process according to the relevant information of the 2-step random access process.

[0145] Step S507: The network device sends the configuration information of the optimized 2-step random access process to the UE.

[0146] In this embodiment, this step is an optional step. After the network device completes the optimization of the configuration information of the 2-step random access process, it can send the optimized configuration information of the 2-step random access process to the UE, so that the UE updates its configuration information of the 2-step random access process, which can improve the success rate of the UE random access.

[0147] In another implementation of this embodiment, the UE may also report relevant information of the 2-step random access process to the network device through the following implementation, and this method may be used alone or in combination with one or more reporting methods in the above step S504.

[0148] After the UE fails to access by adopting the 2-step random access procedure, when the UE adopts the 4-step random access procedure for access, the UE includes the access failure information of the 2-step random access procedure in the third message MSG3 of the 4-step random access procedure and sends it to the network device. Correspondingly, the network device receives the MSG3 including the access failure information of the 2-step random access procedure sent by the UE when the UE adopts the 4-step random access procedure for access after the 2-step random access procedure fails.

[0149] Specifically, the reasons for access failure using the 2-step random access process include: the number of retransmissions of the random access message is greater than or equal to the maximum number of retransmissions of the random access message; the number of retransmissions of the random access preamble code is greater than the maximum number of retransmissions of the random access preamble code; the random access feedback message contains a fallback indication of the network device.

[0150] When the UE uses the 2-step random access procedure to access and the access fails due to any of the above reasons, when the UE uses the 4-step random access procedure to access, the access failure information of the 2-step random access procedure is included in MSG3 and sent to the network device. Correspondingly, the network device receives the MSG3 containing the access failure information of the 2-step random access procedure sent by the UE when the 4-step random access procedure is used for access after the UE uses the 2-step random access procedure to access and the access fails due to any of the above reasons.

[0151] Furthermore, the network device may optimize the configuration information of the 2-step random access process according to the received MSG3 including the access failure information of the 2-step random access process.

[0152] In this embodiment, the UE may be configured to continuously enable a function of reporting information related to the 2-step random access process to the network device.

[0153] In another implementation manner of this embodiment, the method may further include: the network device sends a 2-step-random access process related information reporting indication to the UE, and the UE receives the 2-step-random access process related information reporting indication.

[0154] It should be noted that the network device may send the 2-step-random access process related information reporting indication to the UE before step S501, or the network device may also send the 2-step-random access process related information reporting indication together with the report information type configuration and the report mode configuration to the UE. Accordingly, the UE may receive the 2-step-random access process related information reporting indication sent by the network device together with the report information type configuration and the report mode configuration.

[0155] In this embodiment, the network device may send a 2-step-random access process related information reporting indication to the UE when necessary. When the UE receives the 2-step-random access process related information reporting indication, it enables the function of reporting the 2-step-random access process related information to the network device, and the above steps S501-S507 may be executed.

[0156] In one embodiment, the network device may also send an indication to the UE to stop reporting the information related to the 2-step-random access process. After receiving the indication to stop reporting the information related to the 2-step-random access process, the UE turns off the function of reporting the information related to the 2-step-random access process to the network device. In the embodiment of the present application, the network device sends the report information type configuration and the report mode configuration to the UE, and pre-configures the report information type configuration and the report mode configuration for the UE to report the information related to the 2-step-random access process to it. The UE obtains the relevant information of the 2-step-random access process according to the report information type configuration; sends the relevant information of the 2-step-random access process to the network device according to the report mode configuration; the network device receives the relevant information of the 2-step-random access process sent by the UE according to the report mode configuration, thereby realizing the automatic collection and reporting of the relevant information of the 2-step-random access process, meeting the operator's needs for automatic collection and automatic maintenance of network optimization, and improving the success rate of 2-step-random access.

[0157] Figure 6 This is a schematic diagram of the structure of a terminal device provided in Embodiment 3 of the present application. The terminal device provided in the embodiment of the present application can execute the processing flow executed by the UE in Embodiment 1. Figure 6 As shown, the terminal device 60 includes: an information acquisition module 601 and a reporting module 602 .

[0158] Specifically, the information acquisition module 601 is used to acquire relevant information of the 2-step random access process according to the report information type configuration.

[0159] The reporting module 602 is used to send relevant information according to the reporting mode configuration.

[0160] The terminal device provided in the embodiment of the present application can be specifically used to execute the method process executed by the UE in the above-mentioned embodiment 1, and the specific functions will not be repeated here.

[0161] In the embodiment of the present application, the network device pre-configures the UE to report the relevant information of the 2-step-random access process to the UE through the report information type configuration and the report mode configuration. The UE obtains the relevant information of the 2-step-random access process according to the report information type configuration; sends the relevant information of the 2-step-random access process to the network device according to the report mode configuration; the network device receives the relevant information of the 2-step-random access process sent by the UE according to the report mode configuration, thereby realizing the automatic collection and reporting of the relevant information of the 2-step-random access process, meeting the operator's needs for automatic collection and automatic maintenance of network optimization, and being able to improve the success rate of 2-step-random access.

[0162] Figure 7 This is a schematic diagram of the structure of a terminal device provided in Embodiment 4 of the present application. Based on the above Embodiment 3, in this embodiment, Figure 7 As shown, the terminal device 60 further includes: a receiving module 603. The receiving module 603 is used to receive a report information type configuration and a report mode configuration.

[0163] In one possible design, the reporting module 602 is also used to: periodically send relevant information according to a reporting period in a reporting mode configuration; send relevant information when a report request is received; and send relevant information when it is determined that at least one trigger condition in the reporting mode configuration is met.

[0164] In one possible design, the report request is included in an RRC message or a system broadcast message.

[0165] In one possible design, the triggering condition includes at least one of the following: the number of retransmissions of the random access message is greater than or equal to the maximum number of retransmissions of the random access message; the number of retransmissions of the random access message is greater than or equal to the first preset threshold value; the number of retransmissions of the random access preamble is greater than or equal to the maximum number of retransmissions of the random access preamble; the number of retransmissions of the random access preamble is greater than or equal to the second preset threshold value; the random access feedback message contains a backoff indication of the network device; within the first preset time period, the number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message, or the number of retransmissions of the random access message is greater than the third preset threshold value; within the second preset time period, the number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble, or the number of retransmissions of the random access preamble is greater than the fourth preset threshold value; within the third preset time period, the number of times the backoff indication of the network device is contained in the random access feedback message is greater than or equal to the fifth preset threshold value.

[0166] In one possible design, the reporting module 602 is also used to: after access fails using the 2-step random access process, when access is performed using the 4-step random access process, include the access failure information of the 2-step random access process in the third message of the 4-step random access process and send it to the network device.

[0167] In one possible design, the reasons for access failure using a 2-step random access process include: the number of retransmissions of the random access message is greater than or equal to the maximum number of retransmissions of the random access message; the number of retransmissions of the random access preamble code is greater than the maximum number of retransmissions of the random access preamble code; the random access feedback message contains a backoff indication of the network device.

[0168] In one possible design, the report information type configuration includes at least one of the following: 2-step-random access statistical information within a fourth preset time period; 2-step-random access statistical information since the last sending of relevant information of the 2-step-random access process; access failure information of each 2-step-random access failure; access failure information of the last 2-step-random access failure; UE's geographic location information; UE's path loss value; the cell where the UE is located; the UE's motion status; and the UE's motion speed information.

[0169] In one possible design, the 2-step random access statistical information includes at least one of the following: the number of 2-step random access processes in which the number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message; the number of 2-step random access processes in which the number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble; the number of 2-step random access processes in which the received random access feedback message contains a fallback indication of the network device.

[0170] In one possible design, the access failure information includes at least one of the following: the cause of the access failure; the RSRP of the UE; the load size of the PUSCH corresponding to the random access message; the identification information of the BWP; the SSB index or the CSI-RS index; and the triggering cause of the step 2-random access process.

[0171] In one possible design, the reasons for access failure include at least one of the following: the number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message; the number of retransmissions of the random access preamble code is greater than the maximum number of retransmissions of the random access preamble code; the random access feedback message includes a backoff indication of the network device.

[0172] In one possible design, the receiving module 603 is further used to: receive a reporting indication of information related to the step 2-random access process.

[0173] The terminal device provided in the embodiment of the present application can be specifically used to execute the method process executed by the UE in the above-mentioned embodiment 2, and the specific functions will not be repeated here.

[0174] In the embodiment of the present application, a network device sends a report information type configuration and a report mode configuration to a UE, and pre-configures the report information type configuration and the report mode configuration for the UE to report relevant information of a 2-step-random access process to it. The UE obtains relevant information of the 2-step-random access process according to the report information type configuration; sends relevant information of the 2-step-random access process to the network device according to the report mode configuration; the network device receives relevant information of the 2-step-random access process sent by the UE according to the report mode configuration, thereby realizing automatic collection and reporting of relevant information of the 2-step-random access process, meeting the operator's needs for automatic collection and automatic maintenance of network optimization, and being able to improve the success rate of 2-step-random access.

[0175] Figure 8 This is a schematic diagram of the structure of a network device provided in Example 5 of the present application. The network device provided in the embodiment of the present application can execute the processing flow of the network device in Example 1. Figure 8 As shown, the network device 80 includes: a receiving module 801. The receiving module 801 is used to receive relevant information of the 2-step random access process, where the UE obtains the relevant information according to the report information type configuration and sends it according to the report mode configuration.

[0176] The network device provided in the embodiment of the present application can be specifically used to execute the processing flow executed by the network device in the above-mentioned embodiment 1, and the specific functions are not repeated here.

[0177] In the embodiment of the present application, the network device pre-configures the UE to report the relevant information of the 2-step-random access process to the UE through the report information type configuration and the report mode configuration. The UE obtains the relevant information of the 2-step-random access process according to the report information type configuration; sends the relevant information of the 2-step-random access process to the network device according to the report mode configuration; the network device receives the relevant information of the 2-step-random access process sent by the UE according to the report mode configuration, thereby realizing the automatic collection and reporting of the relevant information of the 2-step-random access process, meeting the operator's needs for automatic collection and automatic maintenance of network optimization, and being able to improve the success rate of 2-step-random access.

[0178] Fig. 9 This is a schematic diagram of the structure of a network device provided in Example 6 of the present application. Based on the above Example 5, in this embodiment, Fig. 9 As shown, the network device 80 further includes: a sending module 802. The sending module 802 is configured to send a report information type configuration and a report mode configuration to the UE.

[0179] In a possible design, the sending module 802 is further used to: send a 2-step random access process related information reporting indication to the UE.

[0180] In one possible design, the receiving module 801 is also used to: periodically receive relevant information of a 2-step random access process according to a reporting period in a reporting mode configuration; receive relevant information of a 2-step random access process sent by the UE when receiving a report request sent by a network device; and receive relevant information of a 2-step random access process sent by the UE when determining that at least one trigger condition in the reporting mode configuration is met.

[0181] In one possible design, the report request is included in an RRC message or a system broadcast message.

[0182] In one possible design, the triggering condition includes at least one of the following: the number of retransmissions of the random access message is greater than or equal to the maximum number of retransmissions of the random access message; the number of retransmissions of the random access message is greater than or equal to the first preset threshold value; the number of retransmissions of the random access preamble is greater than or equal to the maximum number of retransmissions of the random access preamble; the number of retransmissions of the random access preamble is greater than or equal to the second preset threshold value; the random access feedback message contains a backoff indication of the network device; within the first preset time period, the number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message, or the number of retransmissions of the random access message is greater than the third preset threshold value; within the second preset time period, the number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble, or the number of retransmissions of the random access preamble is greater than the fourth preset threshold value; within the third preset time period, the number of times the backoff indication of the network device is contained in the random access feedback message is greater than or equal to the fifth preset threshold value.

[0183] In one possible design, the report information type configuration includes at least one of the following: 2-step-random access statistical information within a fourth preset time period; 2-step-random access statistical information since the last time relevant information was sent; access failure information of each 2-step-random access failure; access failure information of the last 2-step-random access failure; UE's geographic location information; UE's path loss value; the cell where the UE is located; the UE's motion status; and the UE's motion speed information.

[0184] In one possible design, the 2-step random access statistical information includes at least one of the following: the number of 2-step random access processes in which the number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message; the number of 2-step random access processes in which the number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble; the number of 2-step random access processes in which the received random access feedback message contains a fallback indication of the network device.

[0185] In one possible design, the access failure information includes at least one of the following: the cause of the access failure; the RSRP of the UE; the load size of the PUSCH corresponding to the random access message; the identification information of the BWP; the SSB index or the CSI-RS index; and the triggering cause of the step 2-random access process.

[0186] In one possible design, the reasons for access failure include at least one of the following: the number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message; the number of retransmissions of the random access preamble code is greater than the maximum number of retransmissions of the random access preamble code; the random access feedback message includes a backoff indication of the network device.

[0187] In a possible design, the receiving module 801 is further used to: receive a third message containing access failure information of a 2-step random access process, which is sent by the UE when the UE uses a 4-step random access process to access after failing to access using a 2-step random access process.

[0188] In one possible design, Fig. 9 As shown, the network device 80 further includes: an optimization module 803, configured to optimize the configuration information of the 2-step random access process according to the received third message containing the access failure information of the 2-step random access process.

[0189] In one possible design, the reasons for access failure using a 2-step random access process include: the number of retransmissions of the random access message is greater than or equal to the maximum number of retransmissions of the random access message; the number of retransmissions of the random access preamble code is greater than the maximum number of retransmissions of the random access preamble code; the random access feedback message contains a backoff indication of the network device.

[0190] In a possible design, the optimization module 803 is further used to optimize the configuration information of the 2-step random access process according to the received relevant information of the 2-step random access process.

[0191] The network device provided in the embodiment of the present application can be specifically used to execute the method process executed by the network device in the above-mentioned embodiment 2, and the specific functions are not repeated here.

[0192] In the embodiment of the present application, a network device sends a report information type configuration and a report mode configuration to a UE, and pre-configures the report information type configuration and the report mode configuration for the UE to report relevant information of a 2-step-random access process to it. The UE obtains relevant information of the 2-step-random access process according to the report information type configuration; sends relevant information of the 2-step-random access process to the network device according to the report mode configuration; the network device receives relevant information of the 2-step-random access process sent by the UE according to the report mode configuration, thereby realizing automatic collection and reporting of relevant information of the 2-step-random access process, meeting the operator's needs for automatic collection and automatic maintenance of network optimization, and being able to improve the success rate of 2-step-random access.

[0193] Fig.10 This is a schematic diagram of the structure of a terminal device provided in Embodiment 7 of the present application. Fig.10 As shown, the terminal device includes: a processor 1001 and a memory 1002. The memory 1002 stores computer-executable instructions. The processor 1001 executes the computer-executable instructions stored in the memory 1002, so that the processor 1001 executes the method flow executed by the UE in any of the above method embodiments.

[0194] In the embodiment of the present application, the network device pre-configures the UE to report the relevant information of the 2-step-random access process to the UE through the report information type configuration and the report mode configuration. The UE obtains the relevant information of the 2-step-random access process according to the report information type configuration; sends the relevant information of the 2-step-random access process to the network device according to the report mode configuration; the network device receives the relevant information of the 2-step-random access process sent by the UE according to the report mode configuration, thereby realizing the automatic collection and reporting of the relevant information of the 2-step-random access process, meeting the operator's needs for automatic collection and automatic maintenance of network optimization, and being able to improve the success rate of 2-step-random access.

[0195] Fig.11 This is a schematic diagram of the structure of a network device provided in Example 8 of the present application. Fig.11 As shown, the network device 110 includes: a processor 1101 and a memory 1102. The memory 1102 stores computer-executable instructions; the processor 1101 executes the computer-executable instructions stored in the memory 1102, so that the processor 1101 executes the method flow executed by the network device in any of the above method embodiments.

[0196] In the embodiment of the present application, the network device pre-configures the UE to report the relevant information of the 2-step-random access process to the UE through the report information type configuration and the report mode configuration. The UE obtains the relevant information of the 2-step-random access process according to the report information type configuration; sends the relevant information of the 2-step-random access process to the network device according to the report mode configuration; the network device receives the relevant information of the 2-step-random access process sent by the UE according to the report mode configuration, thereby realizing the automatic collection and reporting of the relevant information of the 2-step-random access process, meeting the operator's needs for automatic collection and automatic maintenance of network optimization, and being able to improve the success rate of 2-step-random access.

[0197] In addition, an embodiment of the present application further provides a computer-readable storage medium, in which computer-readable storage medium is stored computer execution instructions, which, when executed by a processor, are used to implement the method flow executed by the UE in any of the above method embodiments.

[0198] In addition, an embodiment of the present application further provides a computer-readable storage medium, in which computer execution instructions are stored. When the computer execution instructions are executed by a processor, they are used to implement the method flow executed by the network device in any of the above method embodiments.

[0199] It should be understood that, although the various steps in the flowcharts in the above-described embodiments are sequentially displayed according to the indications of the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless there is a clear description in this article, the execution of these steps is not strictly limited in order, and they can be executed in other orders. Moreover, at least a portion of the steps in the figure may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily to be carried out sequentially, but can be executed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0200] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A data transmission method, applied to a terminal device UE, characterized in that: include: receiving a report information type configuration, and obtaining relevant information of a 2-step random access process according to the report information type configuration; When receiving the report request, the relevant information is sent to the network device, so that the network device optimizes the configuration information of the 2-step random access process according to the received relevant information, wherein the sending the relevant information to the network device includes: after the access fails by adopting the 2-step random access process, when the 4-step random access process is adopted for access, the access failure information of the 2-step random access process is included in the third message of the 4-step random access process and sent to the network device; The report request is included in a radio resource control RRC message; The relevant information also includes at least one of the following: 2-step random access statistical information within a fourth preset time period; 2 steps since the last sending of the relevant information - random access statistics; Geographical location information of the UE; A path loss value of the UE; The motion state of the UE; Movement speed information of the UE.

2. The method according to claim 1, characterized in that The reason for the access failure using the 2-step random access process includes at least one of the following: The number of retransmissions of the random access message is greater than or equal to the maximum number of retransmissions of the random access message; The number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble; The random access feedback message includes a fallback indication of the network device.

3. The method according to claim 1, characterized in that: The 2-step random access statistical information includes at least one of the following: The number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message 2-the number of random access processes; The number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble - the number of random access processes; The received random access feedback message includes the number of 2-step random access processes indicated by the network device for fallback.

4. The method according to claim 3, characterized in that: The access failure information includes at least one of the following: Causes of access failure; A reference signal received power RSRP of the UE; The load size of the uplink physical shared channel PUSCH corresponding to the random access message; The identification information of the bandwidth part BWP; Synchronization signal block SSB index or channel state information reference signal CSI-RS index; Step 2 - Triggering reason of random access process.

5. The method according to claim 4, characterized in that The reasons leading to the access failure include at least one of the following: The number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message; the number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble; The random access feedback message includes a fallback indication of the network device.

6. The method according to claim 1 or 2, characterized in that: Before acquiring the relevant information of the 2-step random access process according to the report information type configuration, the method further includes: Receive a reporting indication of information related to step 2-random access process.

7. A data transmission method, applied to a network device, characterized in that: include: Sending report information type configuration to terminal device UE; Receiving relevant information of a 2-step random access process, where the relevant information is acquired by the UE according to the report information type configuration and sent when receiving a report request, wherein the receiving relevant information of the 2-step random access process specifically includes: receiving a third message containing access failure information of the 2-step random access process when the UE uses a 4-step random access process for access after failing to access using the 2-step random access process; Optimizing the configuration information of the 2-step random access process according to the received third message; The report request is included in a radio resource control RRC message; The relevant information also includes at least one of the following: 2-step random access statistical information within a fourth preset time period; 2 steps since the last sending of the relevant information - random access statistics; Geographical location information of the UE; A path loss value of the UE; The motion state of the UE; Movement speed information of the UE.

8. The method according to claim 7, characterized in that The method further comprises: Send a 2-step random access process related information reporting indication to the UE.

9. The method according to claim 7, characterized in that: The 2-step random access statistical information includes at least one of the following: The number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message 2-the number of random access processes; The number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble - the number of random access processes; The received random access feedback message includes the number of 2-step random access processes indicated by the network device for fallback.

10. The method according to claim 9, characterized in that The access failure information includes at least one of the following: Causes of access failure; A reference signal received power RSRP of the UE; The load size of the uplink physical shared channel PUSCH corresponding to the random access message; The identification information of the bandwidth part BWP; Synchronization signal block SSB index or channel state information reference signal CSI-RS index; Step 2 - Triggering reason of random access process.

11. The method according to claim 10, characterized in that The reasons leading to the access failure include at least one of the following: The number of retransmissions of the random access message is greater than the maximum number of retransmissions of the random access message; The number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble; The random access feedback message includes a fallback indication of the network device.

12. The method according to claim 7, characterized in that The reason for the access failure using the 2-step random access process includes at least one of the following: The number of retransmissions of the random access message is greater than or equal to the maximum number of retransmissions of the random access message; The number of retransmissions of the random access preamble is greater than the maximum number of retransmissions of the random access preamble; The random access feedback message includes a fallback indication of the network device.

13. A terminal device, characterized in that: include: Processor, memory; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory, so that the processor performs the data transmission method according to any one of claims 1 to 6.

14. A network device, characterized in that: include: Processor, memory; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory, so that the processor performs the data transmission method according to any one of claims 7 to 12.

15. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which are used to implement the data transmission method according to any one of claims 1 to 12 when the computer-executable instructions are executed by a processor.

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