WO2024045923A1 - 一种随机接入报告记录方法以及通信装置 - Google Patents

一种随机接入报告记录方法以及通信装置 Download PDF

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Publication number
WO2024045923A1
WO2024045923A1 PCT/CN2023/107858 CN2023107858W WO2024045923A1 WO 2024045923 A1 WO2024045923 A1 WO 2024045923A1 CN 2023107858 W CN2023107858 W CN 2023107858W WO 2024045923 A1 WO2024045923 A1 WO 2024045923A1
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WIPO (PCT)
Prior art keywords
random access
terminal device
information
sdt
report
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PCT/CN2023/107858
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English (en)
French (fr)
Inventor
王凡凡
耿婷婷
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华为技术有限公司
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Publication of WO2024045923A1 publication Critical patent/WO2024045923A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

Definitions

  • Embodiments of the present application relate to the field of communications, and in particular, to a random access report recording method and a communications device.
  • the short data transmission (SDT) mechanism allows the terminal device to complete the data transmission in the radio resource control inactive (RRC_inactive) state without entering the radio resource control connection when there is only a small amount of uplink data to be sent. (RRC_connected) state. SDT avoids the signaling overhead and energy consumption caused by frequently triggering the RRC connection recovery process.
  • SDT can be divided into SDT based on configuration authorization (Configured Grant-based SDT, CG-SDT) and SDT based on random access (Random Access-based SDT, RA-SDT).
  • RA-SDT includes four-step competition-based random access (4-stepCBRA) and competition-based two-step random access (2-step CBRA).
  • 4-step CBRA the terminal device passes message 3 (i.e. message 3, Msg3) sends the RRC recovery request message (ie, RRC resume request message) and SDT data;
  • 2-step CBRA the terminal device sends the RRC recovery request message and SDT data through message A (ie, message A, MsgA).
  • the terminal device can record the information in the random access process and generate a random access report corresponding to the random access process ( RACH report).
  • the random access report includes parameters related to the random access process recorded by the terminal device, and is used by the network side to identify problems in the random access process and optimize the random access configuration in a timely manner, thereby improving the success of the random access process of the terminal device. Rate.
  • there is currently no random access report recording scheme related to the SDT random access process ie, SDT based on random access).
  • This application provides a random access report recording method and a communication device for terminal equipment to record random access reports related to random access-based SDT.
  • this application provides a random access report recording method.
  • the random access report recording method can be executed by a terminal device or by a component of the terminal device (for example, a processor, a chip or a chip system, etc.) implement.
  • the terminal device receives configuration information from the network device, the configuration information includes a random access resource set for random access characteristics, and the random access characteristics include at least one of the following : Capability-reducing terminal equipment features, short data packet transmission SDT features, coverage enhancement features, and network slicing features; when one or more random access features that at least include the short data packet transmission SDT feature meet the triggering conditions for random access
  • the terminal device selects a random access resource according to the configuration information and initiates a random access process.
  • the terminal device records a first random access report, where the first random access report includes information related to the random access process.
  • the random access resource is suitable for one or more random access characteristics including at least SDT characteristics, then the random access process at least includes random access based on short data packet transmission; the terminal device records a first random access report, where the first random access report includes information related to the random access process.
  • the random access resources are suitable for at least one or more random access characteristics, and the one or more random access characteristics do not include the SDT characteristic, then The random access process does not include short data packet transmission based on random access; the terminal device records a first random access report, and the first random access report includes information related to the random access process.
  • the configuration information also includes priority information of at least one random access characteristic, and the priority information of the random access characteristic is used for the terminal device to select the random access resource from the random access resource set.
  • the terminal device initiates a random access process for all or part of the random access characteristics.
  • the information related to the random access process in the first random access report includes one or more of the following:
  • the first indication information is used to indicate at least one random access characteristic that triggers a random access process, and the at least one random access characteristic includes an SDT characteristic.
  • the second indication information is used to indicate the random access characteristics applicable to (corresponding to) the available random access resources selected by the terminal device in the random access resource set, and the random access resources are applicable to at least include SDT characteristics. All or part of the random access characteristics of one or more random access characteristics.
  • the random access characteristics applicable to the random access resources are all or part of one or more random access characteristics including at least the SDT characteristic, or the random access resources may not be specified. Applies to specific one or more random access features.
  • the content of the information related to the random access process in the first random access report is clarified, which is helpful for the network device to prioritize based on the first indication information and characteristics after receiving the aforementioned first random access report.
  • Either one of the level information or the second indication information determines that the first random access report is a random access report related to recording SDT random access, rather than a random access report in traditional technology.
  • the information related to the random access process also includes any one or more of the following: random access cell identification information, random access frequency point information, time-frequency Domain configuration information, signal quality measurement information, signal quality measurement information indicating that the signal quality measurement information meets the quality threshold, beam information for random access attempts, the amount of data to be transmitted for two-step random access, and the physical uplink shared channel for two-step random access PUSCH configuration information.
  • the terminal device can record the first random access report related to SDT. Therefore, the network side optimizes the random access configuration based on the first random access report, thereby improving the success rate of the SDT random access process of the terminal device.
  • the method further includes at least one of the following:
  • the terminal device sends third indication information to the network device, where the third indication information is used to indicate whether the terminal device supports recording random access reports related to SDT;
  • the terminal device sends third indication information to the network device, where the third indication information is used to instruct the terminal device to support recording random access reports related to SDT.
  • the method further includes: the terminal device receiving fourth indication information from the network device, the fourth indication information being used to indicate whether the terminal device records a random access report related to SDT ;
  • the terminal device sends fourth instruction information to the network device, where the fourth instruction information is used to instruct the terminal device to record a random access report related to SDT.
  • the terminal device can record the random access report related to SDT based on the received fourth indication information, or not record the random access report related to SDT. Therefore, it is helpful for the network device to flexibly control whether the terminal device enables the function of recording random access reports related to SDT.
  • the fourth indication information includes a first threshold, and the first threshold is an upper limit of the number of first random access reports recorded by the terminal device.
  • the terminal device records the first random access report, including: when the number of historical first random access reports recorded by the terminal device is less than a first threshold, the terminal device records the first random access report.
  • the terminal device when the number of historical first random access reports recorded by the terminal device is greater than or equal to the first threshold, the terminal device does not record the first random access report.
  • the method further includes: the terminal device sending fifth indication information to the network device, where the fifth indication information is used to indicate the availability of the first random access report.
  • the terminal device can send fifth indication information to the network device to indicate that the terminal device has a first random access report that can be provided.
  • the fifth indication information may also be used to indicate the type of the first report.
  • the fifth indication information indicates whether the random access report is a legacy RACH report or an SDT-related RACH report. It is beneficial for the network device to decide whether to obtain the first random access report from the terminal device after receiving the fifth indication information.
  • the method further includes: the terminal device receiving sixth indication information from the network device, the sixth indication information being used to instruct the terminal device to report the first random access report; then, The terminal device sends the first follow-up message to the network device. Machine access report.
  • the present application provides a random access report recording method.
  • the random access report recording method can be executed by a network device (for example, an access network device) or by a component of the network device (for example, a processor). , chip or chip system and other components) execution.
  • the network device sends configuration information to the terminal device.
  • the configuration information includes a random access resource set for random access characteristics.
  • the random access characteristics include at least one of the following: reduced capability Based on the terminal equipment characteristics, short data packet transmission SDT characteristics, coverage enhancement characteristics, and network slicing characteristics, the terminal equipment selects random access resources based on the configuration information and initiates the random access process.
  • the network may also configure the terminal device to record the first random access report, where the first random access report includes information related to the random access process.
  • the configuration information also includes priority information of at least one random access characteristic, and the priority information of the random access characteristic is used to provide random access information based on the random access resource set.
  • the process determines available random access resources, which are suitable for all or part of one or more random access characteristics including at least SDT characteristics.
  • the information related to the random access process in the first random access report includes one or more of the following:
  • the first indication information is used to indicate at least one random access characteristic that triggers a random access process, and the at least one random access characteristic includes an SDT characteristic.
  • the second indication information is used to indicate the random access characteristics applicable to (corresponding to) the available random access resources selected by the terminal device in the random access resource set, and the random access resources are applicable to at least include SDT characteristics. All or part of the random access characteristics of one or more random access characteristics.
  • the random access characteristics applicable to the random access resources are all or part of one or more random access characteristics including at least the SDT characteristic, or the random access resources may not be specified. Applies to specific one or more random access features.
  • the information related to the random access process also includes any one or more of the following: random access cell identification information, random access frequency point information, time-frequency Domain configuration information, signal quality measurement information, signal quality measurement information indicating that the signal quality measurement information meets the quality threshold, beam information for random access attempts, the amount of data to be transmitted for two-step random access, and the physical uplink shared channel for two-step random access PUSCH configuration information.
  • the method further includes: the network device receives third indication information from the terminal device, and the third indication information is used to indicate whether the terminal device supports recording random access reports related to SDT. ; Alternatively, the network device receives third indication information from the terminal device, and the third indication information is used to instruct the terminal device to support recording random access reports related to SDT.
  • the method further includes: the network device sends fourth indication information to the terminal device, where the fourth indication information is used to instruct the terminal device whether to record a random access report related to SDT; or , the network device receives fourth instruction information from the terminal device, and the fourth instruction information is used to instruct the terminal device to record a random access report related to SDT.
  • the fourth indication information includes a first threshold, and the first threshold is an upper limit of the number of first random access reports recorded by the terminal device.
  • the method further includes: the network device receives fifth indication information from the terminal device, where the fifth indication information is used to indicate the availability of the first random access report.
  • the fifth indication information may also be used to indicate the type of the first report.
  • the fifth indication information indicates whether the random access report is a legacy RACH report or an SDT-related RACH report.
  • the method further includes: the network device sends sixth instruction information to the terminal device, the sixth instruction information is used to instruct the terminal device to report the first random access report; the network device receives First random access report from the terminal device.
  • the present application provides a communication device, which may be a terminal device or a component of the terminal device (for example, a processor, a chip or a chip system, etc.).
  • the communication device includes: a transceiver module and a processing module.
  • the transceiver module is used to receive configuration information from the network device.
  • the configuration information includes a random access resource set for random access characteristics.
  • the random access characteristics includes short data packet transmission SDT characteristics, and the random access resource set includes random access resources for short data packet transmission SDT random access characteristics; a processing module for when at least one or more random access characteristics of SDT characteristics are included The access characteristics satisfy the triggering conditions of random access, initiate a random access process according to the configuration information, and record a first random access report, where the first random access report includes information related to the random access process.
  • the random access characteristics further include: terminal equipment characteristics that reduce capabilities, coverage enhancement characteristics, or network slicing characteristics.
  • one or more random access characteristics that trigger the random access process include SDT characteristics
  • the random access resources are suitable for one or more random access characteristics that at least include SDT characteristics. If there is a random access characteristic, the random access process at least includes short data packet transmission based on random access; the processing module is used to record a first random access report, where the first random access report includes Information related to the random access process.
  • one or more random access characteristics that trigger the random access process include SDT characteristics, and the random access resources are suitable for at least one or more random access characteristics. If the one or more random access characteristics do not include SDT characteristics, then the random access process does not include short data packet transmission based on random access; the processing module is used to record the first random access report, the first random access report includes information related to the random access process.
  • the information related to the random access process in the first random access report includes one or more of the following:
  • the first indication information is used to indicate at least one random access characteristic that triggers a random access process, and the at least one random access characteristic includes an SDT characteristic.
  • the second indication information is used to indicate the random access characteristics applicable to (corresponding to) the available random access resources selected by the terminal device in the random access resource set, and the random access resources are applicable to at least include SDT characteristics. All or part of the random access characteristics of one or more random access characteristics.
  • the random access characteristics applicable to the random access resources are all or part of one or more random access characteristics including at least the SDT characteristic, or the random access resources may not be specified. Applies to specific one or more random access features.
  • the processing module is also configured to determine available random access resources for the random access process based on the random access resource set and the priority information of the random access characteristics.
  • the input resources are applicable to all or part of the random access characteristics of one or more random access characteristics including at least the SDT characteristic.
  • the processing module is used to initiate a random access process for all or part of the random access characteristics.
  • the transceiver module is further configured to send third indication information to the network device, and the third indication information is used to indicate whether the terminal device supports recording random access reports related to SDT;
  • the transceiver module is also configured to send third indication information to the network device, where the third indication information is used to instruct the terminal device to support recording random access reports related to SDT.
  • the transceiver module is further configured to receive fourth indication information from the network device, where the fourth indication information is used to indicate whether the terminal device records a random access report related to SDT;
  • the transceiver module is further configured to receive fourth instruction information from the network device, where the fourth instruction information is used to instruct the terminal device to record a random access report related to SDT.
  • the fourth indication information includes a first threshold
  • the first threshold is an upper limit of the number of first random access reports recorded by the terminal device.
  • the processing module is specifically configured to record the first random access report when the number of recorded historical first random access reports is less than a first threshold.
  • the transceiver module is further configured to send fifth indication information to the network device, where the fifth indication information is used to indicate the availability of the first random access report.
  • the fifth indication information may also be used to indicate the type of the first report.
  • the fifth indication information indicates whether the random access report is a legacy RACH report or an SDT-related RACH report.
  • the transceiver module is further configured to receive sixth indication information from the network device, where the sixth indication information is used to instruct the terminal device to report the first random access report; and, The network device sends a first random access report.
  • the present application provides a communication device.
  • the communication device may be a network device or a component of the network device (for example, For example, components such as processors, chips or chip systems).
  • the communication device includes: a transceiver module and a processing module.
  • the processing module is used to determine the configuration information.
  • the configuration information includes a random access resource set for random access characteristics.
  • the random access characteristics include short data packet transmission SDT characteristics.
  • the random access resource set includes a random access resource set for short data packet transmission.
  • the data packet transmits random access resources with SDT random access characteristics.
  • the terminal device selects the random access resources based on the configuration information and initiates the random access process.
  • the network may also configure the terminal device to record the first random access report, where the first random access report includes information related to the random access process.
  • the transceiver module is used to send configuration information to the terminal device.
  • the random access characteristics further include: terminal equipment characteristics that reduce capabilities, coverage enhancement characteristics, or network slicing characteristics.
  • the configuration information also includes priority information of at least one random access characteristic, and the priority information of the random access characteristic is used to provide random access information based on the random access resource set.
  • the process determines available random access resources, and the random access resources are suitable for all or part of one or more random access characteristics including at least SDT characteristics.
  • the information related to the random access process includes one or more of the following:
  • the first indication information is used to indicate at least one random access characteristic that triggers a random access process, and the at least one random access characteristic includes an SDT characteristic.
  • the second indication information is used to indicate the random access characteristics applicable to (corresponding to) the available random access resources selected by the terminal device in the random access resource set, and the random access resources are applicable to at least include SDT characteristics. All or part of the random access characteristics of one or more random access characteristics.
  • the random access characteristics applicable to the random access resources are all or part of one or more random access characteristics including at least the SDT characteristic, or the random access resources may not be specified. Applies to specific one or more random access features.
  • the transceiver module is further configured to receive third indication information from the terminal device, and the third indication information is used to indicate whether the terminal device supports recording random access reports related to SDT. ; Alternatively, the transceiver module is also configured to receive third indication information from the terminal device, where the third indication information is used to instruct the terminal device to support recording random access reports related to SDT.
  • the transceiver module is further configured to send fourth indication information to the terminal device, where the fourth indication information is used to instruct the terminal device whether to record a random access report related to SDT; or , the transceiver module is also configured to send fourth instruction information to the terminal device, and the fourth instruction information is used to instruct the terminal device to record a random access report related to SDT.
  • the fourth indication information includes a first threshold, and the first threshold is an upper limit of the number of first random access reports recorded by the terminal device.
  • the transceiver module is further configured to receive fifth indication information from the terminal device, where the fifth indication information is used to indicate the availability of the first random access report.
  • the fifth indication information may also be used to indicate the type of the first report.
  • the fifth indication information indicates whether the random access report is a legacy RACH report or an SDT-related RACH report.
  • the transceiver module is further configured to send sixth instruction information to the terminal device, where the sixth instruction information is used to instruct the terminal device to report the first random access report; and, receive from The first random access report of the terminal device.
  • inventions of the present application provide a communication device.
  • the communication device may be the terminal device in the aforementioned embodiment, or may be a chip in the terminal device.
  • the communication device may include a processing module and a transceiver module.
  • the processing module may be a processor, and the transceiver module may be a transceiver;
  • the terminal device may also include a storage module, which may be a memory; the storage module is used to store instructions, the The processing module executes the instructions stored in the storage module, so that the terminal device executes the method in the first aspect or any implementation of the first aspect.
  • the processing module can be a processor, and the transceiver module can be an input/output interface, a pin or a circuit, etc.; the processing module executes the instructions stored in the storage module, so that the The terminal device performs the method in the first aspect or any implementation manner of the first aspect.
  • the storage module may be a storage module within the chip (eg, register, cache, etc.), or may be a storage module in the terminal device located outside the chip (eg, read-only memory, random access memory, etc.).
  • inventions of the present application provide a communication device.
  • the communication device may be the access network equipment in the aforementioned embodiments, It can also be a chip in the access network equipment.
  • the communication device may include a processing module and a transceiver module.
  • the processing module can be a processor, and the transceiver module can be a transceiver;
  • the access network device can also include a storage module, and the storage module can be a memory; the storage module is used to Store instructions, and the processing module executes the instructions stored in the storage module, so that the terminal device executes the method in the second aspect or any implementation of the second aspect.
  • the processing module can be a processor, and the transceiver module can be an input/output interface, a pin or a circuit, etc.; the processing module executes the instructions stored in the storage module to The terminal device is caused to execute the method in the second aspect or any implementation manner of the second aspect.
  • the storage module can be a storage module in the chip (for example, a register, a cache, etc.), or it can be a storage module in the access network device located outside the chip (for example, a read-only memory, a random access memory, etc.) .
  • the present application provides a communication device, which may be an integrated circuit chip.
  • the integrated circuit chip includes a processor.
  • the processor is coupled to a memory, and the memory is used to store programs or instructions.
  • the communication device performs the method described in any one of the embodiments of the foregoing aspects.
  • embodiments of the present application provide a computer program product containing instructions that, when run on a computer, cause the computer to execute the method described in any of the embodiments of the foregoing aspects.
  • embodiments of the present application provide a computer-readable storage medium, which includes instructions. When the instructions are run on a computer, the computer executes the method described in any of the embodiments of the previous aspects.
  • embodiments of the present application provide a communication system.
  • the communication system includes a terminal device that performs the foregoing first aspect and any of the embodiments of the first aspect, and performs the foregoing second aspect and any of the second aspects.
  • a network device in an embodiment.
  • Figure 1A is a network architecture diagram applicable to the random access report recording method proposed in this application;
  • Figure 1B is a schematic structural diagram of network equipment involved in the random access report recording method proposed by this application.
  • Figure 1C is another structural schematic diagram of network equipment involved in the random access report recording method proposed by this application.
  • Figure 2 is a flow chart of the random access report recording method in this application.
  • Figure 3 is another flow chart of the random access report recording method in this application.
  • FIG. 4 is a schematic diagram of an embodiment of the communication device in this application.
  • FIG. 5 is a schematic diagram of another embodiment of the communication device in this application.
  • Figure 6 is a schematic diagram of another embodiment of the communication device in this application.
  • the random access report recording method proposed by this application can be applied to 5G NR (5G New Radio) systems, the 6th generation mobile communication technology (6G) systems and subsequent evolution systems.
  • 5G NR 5G New Radio
  • 6G 6th generation mobile communication technology
  • the communication system at least includes terminal equipment and access network equipment.
  • terminal equipment includes equipment that provides voice and/or data connectivity to users.
  • this may include a handheld device with wireless connectivity or a processing device connected to a wireless modem.
  • the terminal device can communicate with the core network (for example, 5G core network (5th generation core, 5GC)) via the radio access network (RAN), and can exchange voice and/or data with the RAN. or data.
  • the core network for example, 5G core network (5th generation core, 5GC)
  • RAN radio access network
  • the terminal equipment may also be called a terminal (Terminal), user equipment (UE), wireless terminal equipment, mobile terminal (MT) equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), Mobile station (MS), mobile station (mobile), remote station (remote station), access point (AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user Terminal equipment (user terminal), user agent (user agent), or user equipment (user device), etc.
  • UE user equipment
  • MT mobile terminal
  • subscriber unit subscriber unit
  • subscriber station subscriber station
  • MS mobile station
  • remote station remote station
  • access point AP
  • remote terminal equipment remote terminal equipment
  • access terminal equipment access terminal
  • user Terminal equipment user terminal
  • user agent user agent
  • user equipment user device
  • the terminal device can be a mobile phone (mobile phone), tablet computer (Pad), computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, industrial control Wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, transportation safety ), wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • the terminal device in this application can be any of the above-mentioned devices or chips, and there is no specific limitation here. Whether as a device or a chip, the terminal device can be manufactured, sold or used as an independent product. In this embodiment and subsequent embodiments, the terminal device is taken as an example for introduction.
  • the access network device can be any device with wireless transceiver functions and can be used to be responsible for air interface-related functions, such as wireless link maintenance functions, wireless resource management functions, and some mobility management functions.
  • the access network equipment can also be configured with a base band unit (BBU), which has baseband signal processing functions.
  • BBU base band unit
  • the access network device may be an access network device (radio access network, RAN) that currently provides services to the terminal device.
  • RAN radio access network
  • some common examples of access network equipment are: Node B (NB), evolved Node B (eNB), and next-generation Node B (next) in 5G new radio (NR) systems.
  • the access network equipment may include a centralized unit (CU) (also known as control unit) and/or distributed unit (DU) equipment.
  • CU centralized unit
  • DU distributed unit
  • the RAN equipment including CU and DU separates the protocol layer of gNB in the NR system.
  • the access network device in the embodiment of the present application can be any of the above devices or a chip in the above device, and there is no specific limitation here. Whether as equipment or as a chip, the access network equipment can be manufactured, sold or used as an independent product. In this embodiment and subsequent embodiments, access network equipment is taken as an example for introduction.
  • CU and DU can be segmented according to the protocol stack.
  • CU deploys the radio resource control (RRC) layer in the protocol stack, the packet data convergence protocol (PDCP), and business data adaptation Protocol (service data adaptation protocol, SDAP) layer
  • DU deploys the radio link control (RLC) layer, media access control (MAC) layer, and physical layer in the protocol stack. PHY). Therefore, the CU has the processing capabilities of RRC, PDCP and SDAP.
  • DU has RLC, MAC and PHY processing capabilities. It can be understood that the above-mentioned functional division is only an example and does not constitute a limitation on CU and DU. In other words, there can be other ways of dividing functions between CU and DU, which will not be described in this application.
  • CU can be implemented by one entity or by different entities.
  • the control plane (CP) and user plane (UP) of the CU functions can be separated, that is, the CU is divided into the CU control plane (CU-CP) and the CU user plane (CU-UP).
  • CU-CP and CU-UP can be implemented by different functional entities, and CU-CP and CU-UP can be coupled with DU to jointly complete the functions of the base station.
  • CU-CP can be further divided into CU-CP1 and CU-CP2.
  • CU-CP1 includes various radio resource management functions, and CU-CP2 only includes RRC functions and PDCP-C functions (ie, the basic functions of control plane signaling at the PDCP layer).
  • CU-CP is responsible for control plane functions, which mainly include RRC and PDCP-C.
  • PDCP-C is mainly responsible for encryption and decryption, integrity protection, and data transmission of control plane data.
  • CU-UP is responsible for user plane functions, mainly including SDAP and PDCP-U.
  • SDAP is mainly responsible for processing core network data and mapping data flows to bearers.
  • PDCP-U Mainly responsible for data plane encryption and decryption, integrity protection, header compression, serial number maintenance and data transmission.
  • CU-CP and CU-UP are connected through the E1 interface.
  • CU-CP represents gNB connected to the core network through the NG interface and connected to the DU through the F1 interface control plane (ie F1-C).
  • CU-UP is connected to DU through the F1 interface user plane (ie F1-U).
  • F1 interface control plane ie F1-C
  • PDCP-C is also in CU-UP.
  • the CU control plane CU-CP also includes a further segmentation architecture, that is, the existing CU-CP is further segmented into CU-CP1 and CU-CP2.
  • CU-CP1 includes various radio resource management functions (for example, mobility management, specific values of each information in the downlink RRC message sent by the terminal device, etc.), and CU-CP2 only includes RRC functions (for example, responsible for generating downlink RRC messages and decoding uplink RRC messages) and PDCP-C functions (that is, the basic functions of control plane signaling at the PDCP layer).
  • RRC functions for example, responsible for generating downlink RRC messages and decoding uplink RRC messages
  • PDCP-C functions that is, the basic functions of control plane signaling at the PDCP layer.
  • the communication system may also include core network equipment.
  • the core network equipment refers to equipment in the core network (core network, CN) that provides business support for terminal equipment.
  • core network CN
  • core network equipment Currently, some common examples of core network equipment are: access and mobility management function (AMF) entities, session management function (SMF) entities, user plane function (UPF) entities ) entities, etc., which are not listed here.
  • AMF access and mobility management function
  • SMF session management function
  • UPF user plane function
  • the AMF entity can be responsible for the access management and mobility management of the terminal device
  • the SMF entity can be responsible for session management, such as user session establishment, etc.
  • the UPF entity can be a functional entity of the user plane, mainly responsible for connecting to external networks.
  • the entities in this application may also be called network elements or functional entities.
  • the AMF entity may also be called an AMF network element or an AMF functional entity; and for example, the SMF entity may also be called an SMF network element or an SMF functional entity.
  • the core network equipment in this application at least includes AMF entities.
  • the random access report recording method proposed in this application can be applied to random access-based SDT (RA-SDT) based on random access.
  • R-SDT random access-based SDT
  • 4-stepCBRA contention-based four-step random access
  • 2-stepCBRA contention-based two-step random access
  • the terminal device supports executing SDT in the inactive state, and the network device and the terminal device mainly perform the following steps:
  • Step 201 The network device sends configuration information to the terminal device.
  • the terminal device receives the above configuration information.
  • the network device sends a system message, and the terminal device receives the system message to obtain the above configuration information.
  • the system message may be system information block 1 (SIB1).
  • SIB1 system information block 1
  • the network device includes the aforementioned configuration information in SIB1 and broadcasts SIB1 to the cell where the terminal device is located, and the terminal device receives SIB1 and obtains the aforementioned configuration information.
  • the configuration information is used to indicate resources for random access to the terminal device.
  • the configuration information includes a random access resource set for random access characteristics, and the random access characteristics include at least one of the following: reduced capability terminal equipment characteristics, short data packet transmission SDT characteristics, coverage enhancement characteristics, and network Slicing properties.
  • the random access resource set includes random access resources for SDT random access characteristics (which may also be called random access resources of SDT characteristics, or SDT-related random access resources).
  • the network device can indicate to the terminal device random access resources suitable for one or more random access characteristics through configuration information.
  • the aforementioned random access resources are applicable to one or more random access characteristics.
  • random access characteristics include terminal equipment characteristics of reduced capability (RedCap), short data packet transmission (small data transmission) , SDT) feature, coverage enhancement (CovEnh) feature, and one or more of the network slicing (RAN Slicing) feature.
  • the different random access characteristics mentioned above can be combined into a combination of characteristics.
  • the RedCap feature and the SDT feature can form a feature combination, which can be expressed as a feature combination ⁇ RedCap+SDT ⁇ .
  • the RedCap feature and the CovEnh feature can form a feature combination, which can be expressed as a feature combination ⁇ RedCap+CovEnh ⁇ .
  • the three characteristics of SDT characteristics, CovEnh characteristics and RedCap characteristics can constitute a characteristic combination, which can be expressed as a characteristic combination ⁇ SDT+RedCap+CovEnh ⁇ .
  • the random access resource set indicated by the configuration information includes random access resources used for SDT random access characteristics. If the random access resource is only applicable to the SDT feature, the random access resource is only applicable to the SDT feature and is not applicable to other random access features; if it is applicable to multiple random access features including the SDT feature, the random access resource is applicable In a random characteristic combination and the random characteristic combination includes SDT characteristics.
  • the random access resource set includes random access resources indicating SDT characteristics, and/or random access resources indicating RedCap characteristics and SDT characteristics.
  • the random access resource set includes random access resources indicating CovEnh characteristics and SDT characteristics.
  • the configuration information also includes priority information of at least one random access feature.
  • the priority information of the random access feature is used by the terminal.
  • the terminal device determines available random access resources for the random access process from the random access resource set based on the priority information of the random access characteristics.
  • the random access resources are suitable for one or more types of random access resources including at least the SDT characteristic. All or part of random access characteristics.
  • the network device configures random access resources for one or more of the following characteristics: RedCap+SDT, RedCap, RedCap+CovEnh, SDT+CovEnh, slice group1+SDT.
  • the priority information of the random access feature is: RedCap>Slice group1>SDT>CovEnh.
  • the random access resources applicable to the random access feature combined with RACH partition include 2-step RACH partition configuration information and/or 4-step RACH partition configuration information.
  • the 2-step RACH partition configuration information is used to indicate random access resources based on 2-step
  • the 4-step RACH partition configuration information is used to configure random access resources based on 4-step.
  • Step 202 One or more random access characteristics including SDT trigger the random access process, and the terminal device initiates the random access process according to the configuration information.
  • the terminal device selects Randomly access resources and initiate a random access process.
  • the network device when random access is triggered by a combination of the RedCap feature, SDT feature, and CovEnh feature, and the priority information of the random access feature is: RedCap>Slice group1>SDT>CovEnh, the network device is as follows One or more features are configured with random access resources: RedCap+SDT, RedCap, RedCap+CovEnh, SDT+CovEnh, slice group1+SDT, because there is no random access resource combination corresponding to the RedCap+SDT+CovEnh feature combination. access resources, so the terminal device needs to select random access resources from the random access resource combination based on the random access feature priority information.
  • the terminal device selects one or more random access resources suitable for one or more random access features including the RedCap feature. , among the one or more random access resources applicable to one or more random access characteristics including the RedCap characteristic, the terminal device determines one or more random access resources applicable to the SDT characteristic, and further the terminal The device determines one or more random access resources that are applicable to the CovEnh feature. According to the above random access resource selection process, the terminal device summarizes the random access resource set configured on the network device and selects the random access resource indicating the RedCap+SDT feature combination.
  • the terminal device initiates a random access process for the RedCap and SDT features according to the selected random access resources.
  • the random access process includes short data packet transmission based on random access. For example, if the random access resource is suitable for one or more random access characteristics including at least SDT characteristics, then the random access process at least includes short data packet transmission based on random access. For example, if the random access resource selected by the terminal device is suitable for at least one or more random access characteristics, and the one or more random access characteristics do not include the SDT characteristic, then the random access process does not Includes short packet transmission based on random access.
  • the terminal equipment at least meets the triggering conditions of SDT random access.
  • the triggering conditions for SDT random access include the following:
  • the amount of data to be transmitted is less than the data amount threshold set in the RRC release message (i.e., RRCRelease message); (2) RSRP of the downlink path loss reference signal is higher than the RSRP threshold set in the RRCRelease message; (3) RRCRelease The message does not carry configured grant (CG) configuration or the CG resource is invalid.
  • CG configured grant
  • the random access process initiated by the terminal device may be based on a two-step SDT random access process (i.e., 2-step SDT RACH), or it may be based on a four-step SDT random access process (i.e., 4-step SDT RACH). Specifically, the terminal device determines whether to initiate 2-step SDT RACH or 4-step SDT RACH based on the content of the configuration information.
  • the terminal device selects the 4-step random access process; if only 2-step random access resources are configured -step SDT RACH random access resources, the terminal device selects the 2-step random access process; if both the 4-step SDT RACH random access resources and the 2-step SDT RACH random access resources are configured, the terminal The device determines which random access method to select based on the reference signal received power (RSRP) of the downlink path loss reference signal and the threshold configured on the network side. For example, when the RSRP is higher than the threshold, the 2-step random access process is selected; when it is lower than the threshold, the 4-step random access process is selected.
  • RSRP reference signal received power
  • the SDT random access process initiated by the terminal device may involve fallback (also known as fallback).
  • the terminal device initiates 2-step SDT RACH.
  • the terminal device falls back to 4-step SDT RACH.
  • the terminal device receives the instruction information sent by the network device to instruct fallback
  • the terminal device determines to fall back to 4-stepSDT RACH after receiving the instruction information.
  • the terminal device determines that 2-stepSDT RACH fails (for example, the maximum number of preamble transmissions is reached, or the received msgB fails to be resolved, etc.)
  • the terminal device determines to fall back to 4-stepSDT RACH.
  • Step 203 The terminal device records a first random access report, where the first random access report includes information related to the random access process.
  • the terminal device After the terminal device successfully performs the random access process, the terminal device will record the first random access report related to the random access process related to the SDT.
  • the random access process is suitable for SDT characteristics based on random access, and the first random access report includes information related to the SDT random access process.
  • the random access process is applicable to one or more random access characteristics that do not include SDT characteristics, and the first random access report includes information related to the random access process. For example, if the random access resource is suitable for one or more random access characteristics including at least SDT characteristics, then the random access process at least includes short data packet transmission based on random access, and then the terminal device Record a first random access report, where the first random access report includes information related to the random access-based short data packet transmission process.
  • the random access process does not include random access based on The accessed short data packet is transmitted, and then the terminal device records a first random access report, where the first random access report includes information related to the random access process.
  • the terminal device successfully performs the random access process, it can be that the terminal device successfully performs 2-step RACH; it can also be that the terminal device successfully performs 4-step RACH; it can also be that the terminal device performs 2-step RACH Fails, but the end device falls back and successfully performs 4-step RACH.
  • the terminal device successfully performs the random access process
  • it can be that the terminal device successfully performs 2-step RACH; it can also be that the terminal device successfully performs 4-step RACH; it can also be that the terminal device performs 2-step RACH Fails, but the end device falls back and successfully performs 4-step RACH.
  • the first random access report includes information related to the 2-step RACH process; if the terminal device successfully performs 4-step RACH, the first random access report Includes information related to the 4-step RACH process; if the terminal equipment falls back from 2-step RACH to 4-step RACH and successfully executes 4-step RACH, the first random access report includes the 2-step RACH process and 4-step RACH Process related information.
  • the terminal device when the number of historical first random access reports recorded by the terminal device is less than the first threshold, the terminal device records the first random access report.
  • the first threshold is an upper limit of the number of first random access reports recorded by the terminal device, which can also be understood as the maximum number of first random access reports recorded by the terminal device.
  • the historical first random access report refers to the first random access report that the terminal device has generated or recorded before the current time.
  • the terminal device every time the terminal device generates a first random access report, the terminal device performs a counting operation to record the number of first random access reports generated by the terminal device. In addition, whenever the terminal device successfully performs the SDT random access process, the terminal device will decide based on the first threshold whether to record the information related to the SDT random access to generate the first random access of the SDT random access process. Access report. When the number of historical first random access reports recorded by the terminal device is less than the first threshold, the terminal device records the first random access report of this SDT random access process; when the number of historical first random access reports recorded by the terminal device is When the number of access reports is greater than or equal to the first threshold, the terminal device does not record the first random access report of this SDT random access process.
  • the terminal device can obtain the first threshold through any of the following implementation methods:
  • the first threshold is configured by a network device (eg, access network device).
  • the access network device sends the first threshold to the terminal device, and accordingly the terminal device receives the first threshold from the access network device.
  • the network device may send the first threshold to the terminal device through a public RRC message or a dedicated RRC message.
  • the public RRC message may be a system message, for example, SIB1; the dedicated RRC message may be an RRC reconfiguration message, etc.
  • the first threshold is predefined by the protocol.
  • the protocol predefines a new parameter (for example, maxRAFeatureReport, maxRASDTReport), which is an upper limit for the number of first random access reports recorded by the terminal device.
  • the first threshold comes from a network management device (for example, an operation management and maintenance (operation administration and maintenance, OAM) device).
  • a network management device for example, an operation management and maintenance (operation administration and maintenance, OAM) device.
  • OAM operation administration and maintenance
  • the OAM device sends the first threshold to the terminal device.
  • information related to the random access process includes one or more of the following:
  • the first indication information is used to indicate at least one random access characteristic that triggers a random access process, and the at least one random access characteristic includes an SDT characteristic. It can also be understood that only the SDT feature triggers the random access process, or it includes the SDT feature. The combination of random access characteristics triggers the random access process.
  • the first indication information may indicate only the SDT characteristics, or may indicate a combination of random access characteristics including the SDT characteristics.
  • the random access feature priority information includes priority information of the SDT feature.
  • priority information of the random access feature please refer to the previous step 201, which will not be described again here.
  • the second indication information is used to indicate the random access characteristics applicable to (corresponding to) the available random access resources selected by the terminal device in the random access resource set.
  • the random access resources are applicable to all or part of one or more random access characteristics including at least SDT characteristics, or the random access resources are not specified to be applicable to a specific one or more Random access feature.
  • at least all or part of the one or more random access characteristics including the SDT characteristic include the SDT characteristic, and at least all of the one or more random access characteristics including the SDT characteristic.
  • some random access features may not include SDT features.
  • the second indication information may indicate only SDT characteristics, may indicate a combination of random access characteristics including SDT characteristics, or may not indicate any random access characteristics. For example, if the terminal device needs to trigger the SDT random access process, the random access resource selected by the terminal device is suitable for one or more random access characteristics including SDT characteristics, and the second indication information at least includes the SDT characteristics.
  • information related to the random access process also includes one or more of the following:
  • Randomly accessed cell identification information for example, the physical cell identifier (PCI) of the cell to which the terminal device accesses.
  • PCI physical cell identifier
  • Random access frequency point information is used to indicate the frequency point for terminal equipment to perform random access.
  • Time-frequency domain configuration information is used to indicate the time-frequency resources for random access.
  • the time-frequency domain configuration information is used to determine the time-frequency resource for sending the random access preamble.
  • the time-frequency domain configuration information also includes subcarrier spacing and other information.
  • Signal quality measurement information is used to indicate the quality of the signal measured by the terminal device.
  • the signal quality measurement information includes the RSRP value of the signal measured by the terminal device, etc.
  • Indication information that the signal quality measurement information meets the quality threshold is used to indicate whether the measured RSRP value reaches the quality threshold.
  • Beam information for random access attempts such as beam number, number of preambles sent on the beam, and collision detection indication.
  • the amount of data to be transmitted for two-step random access and the physical uplink shared channel (PUSCH) configuration information for two-step random access.
  • PUSCH physical uplink shared channel
  • the terminal device may use any of the following implementations to generate a first random access report based on information related to the random access process, where the first random access report is related to SDT:
  • At least one random access characteristic including SDT triggers a random access process, and the random access process initiated by the terminal device is applicable to SDT, that is, this random access process is SDT random access.
  • the terminal device records the first random access report.
  • At least one random access characteristic including SDT triggers a random access process, and the random access process initiated by the terminal device is not applicable to SDT, that is, this random access process does not include In the random access process of at least one random access characteristic of SDT, the terminal device records the first random access report.
  • the first random access report is a new random access report added by the terminal device.
  • the type of information elements carried by the first random access report is not exactly the same as the type of information elements carried by the random access report in the prior art.
  • information elements related to SDT characteristics For example, when the first random access report carries the random access report information elements in the prior art, some information elements are considered to be simplified, and the random access purpose (raPurpose) information elements are simplified. For another example, compared with the random access report in the prior art, the first random access report adds an indication related to SDT characteristics.
  • the random access report determined by the terminal device adding information elements related to SDT characteristics based on the random access report in the prior art is the first random access report.
  • the first random access report also includes information elements related to SDT characteristics.
  • the first random access report newly configures the following information elements in the traditional random access report. It can also be understood that the terminal device configures the following information elements in the traditional random access report to indicate whether SDT is triggered and used. This random access process.
  • the random access characteristic information that triggers this random access process is indicated in the random access purpose (raPurpose) information element.
  • the indicated random access characteristics at least include SDT characteristics.
  • This random access The process can be SDT only triggered or it can be Triggered by a combination of random access features including SDT.
  • the network device can determine that the received random access report is the first random access report based on the SDT information indicated by the random access destination information element, and the first random access report is the same as the first random access report. SDT related.
  • whether the random access report is the first random access report may be indicated based on whether the following conditions are met. It may also be understood that whether the SDT triggers this random access report is indicated based on whether the following conditions are met. into the process.
  • the condition is that the RSRP satisfies the SDT-related threshold based on random access, and the amount of data to be transmitted satisfies the SDT-related threshold based on random access.
  • the random access report 1 is the first random access report; when the RSRP in the random access report 1 does not meet the SDT-related threshold based on random access, or the random access report 1 When the amount of data to be transmitted does not meet the SDT-related threshold based on random access, the random access report 1 has nothing to do with SDT, and the random access report 1 is not the first random access report.
  • the network device can determine whether the received random access report is based on the RSRP value in the random access report 1, the amount of data to be transmitted in the random access report 1, and the aforementioned conditions. Related to SDT to determine whether it is the first random access report.
  • the random access characteristic priority information is indicated in the first random access report.
  • the values of the aforementioned information related to the random access process are determined based on the random access process measurement values and parameter values used in the random access process.
  • the parameter values used in the random access process include random access resource specific parameters corresponding to the random access characteristics (i.e., parameters unique to the random access process related to the random access characteristics), legacy RACH parameters (i.e., the parameters in traditional technology). Basic RACH parameters), and parameters common to both (i.e., Per RACH configuration parameters).
  • parameters unique to the random access process of the random access feature include the time-frequency domain configuration information and PUSCH configuration information introduced above.
  • the parameters unique to the random access process of the random access feature also include threshold parameters for the amount of data to be transmitted, threshold parameters related to SSB selection (for example, 4-step RSRP quality threshold (ie rsrp-ThresholdSSB) and 2-step RSRP quality threshold (i.e. msgA-RSRP-ThresholdSSB), etc.).
  • Per RACH configuration parameters include msgA maximum transmission times threshold, RACH maximum transmission times threshold, etc.
  • the terminal device determines the specific random access process related to the random access characteristics in the first random access report based on the random access resource information for the random access characteristics in the configuration information (for example, additionalRACH-ConfigCommon information element).
  • the value of the parameter When the parameter value of the specific parameter is missing from the random access resource information used for random access characteristics in the configuration information, the terminal device is based on the 4-step random access common configuration information element (RACH-ConfigCommon (4-step) ) and/or the 2-step random access common configuration information element (msgA-ConfigCommon(2-step)) determines the value of the specific parameters of the random access process.
  • RACH-ConfigCommon 4-step random access common configuration information element
  • msgA-ConfigCommon(2-step) determines the value of the specific parameters of the random access process.
  • the terminal device can record the first random access report related to SDT after SDT triggers the random access process. Further, the network side optimizes the random access configuration of the random access characteristics based on the first random access report.
  • the random access configuration may be suitable for random access resources that at least include SDT characteristics, or may be random access resources that include SDT characteristics. Enter the feature priority, thereby improving the success rate of the SDT random access process of the terminal device.
  • the terminal device supports executing SDT in the inactive state, and the terminal device may involve signaling interactions with multiple network devices.
  • multiple network devices including a first network device and a second network device are taken as an example.
  • the first network device, the second network device and the terminal device mainly perform the following steps:
  • Step 301 The first network device sends configuration information to the terminal device.
  • the terminal device receives the above configuration information.
  • the first network device broadcasts configuration information
  • the terminal device receives the configuration information from the first network device.
  • step 201 For the explanation of the configuration information, please refer to the relevant description in step 201 above, which will not be described again here.
  • Step 302 The terminal device sends third instruction information to the network device.
  • the network device receives the third indication information from the terminal device.
  • Step 302 is an optional step.
  • the third indication information is used to indicate whether the terminal device supports recording random access reports related to SDT, or to indicate whether the terminal device The device supports recording SDT-related random access reports.
  • the third indication information may be carried in the capability information of the terminal device.
  • the third indication information is a newly added capability bit in the wireless capability information (UE Radio Capability information) of the terminal device. For example, if the value of this capability bit is "0", it means that the terminal device does not support recording random access reports related to SDT; if the value of this capability bit is "1", it means that the terminal device supports recording and SDT Related random access reports.
  • the third instruction information instructs the terminal device to support recording random access reports related to SDT as an example for introduction.
  • the terminal device may send UE Radio Capability information carrying the third indication information to the first network device during first attachment (attach) or tracking area update (TAU); accordingly, the first network device can Obtain third indication information based on the received UE Radio Capability information, and then determine based on the third indication information that the terminal equipment supports recording random access reports related to SDT.
  • the first network device may send a capability inquiry (UE Capability Inquiry) message to the terminal device in the connected state, and accordingly, the terminal device sends the third indication information to the first network device.
  • UE Capability Inquiry UE Capability Inquiry
  • the terminal device can send the third indication information to the first network device, so that the first network device determines based on the third indication information that the terminal device supports recording random access reports related to SDT, which is beneficial to the first network device's decision-making. Whether to instruct the terminal device to record random access reports related to SDT.
  • Step 303 The first network device sends fourth indication information to the terminal device; accordingly, the terminal device receives the fourth indication information from the first network device.
  • Step 303 is an optional step.
  • the fourth indication information is used to instruct the terminal device whether to record a random access report related to SDT, or to instruct the terminal device to record a random access report related to SDT. In a possible example, the fourth indication information instructs the terminal device to record a random access report related to SDT. In another possible example, the fourth indication information instructs the terminal device not to record random access reports related to SDT.
  • the first network device may send the fourth indication information to the terminal device through a public RRC message or a dedicated RRC message.
  • the public RRC message may be a system message, for example, SIB1; the dedicated RRC message may be an RRC reconfiguration message, etc.
  • the fourth indication information includes a first threshold
  • the first threshold is an upper limit of the number of first random access reports recorded by the terminal device, which can also be understood as the maximum number of first random access reports recorded by the terminal device.
  • the first threshold please refer to the relevant introduction in step 203 above, and will not be described again here.
  • the value of the first threshold may be used to indicate whether the terminal device records a random access report related to SDT. For example, when the value of the first threshold is 0, it indicates that the terminal device is instructed not to record random access reports related to SDT; when the value of the first threshold is an integer greater than 0, it indicates that the terminal device is instructed to record random access reports related to SDT. access report, and the integer greater than 0 is the upper limit of the number of first random access reports recorded by the terminal device.
  • the CU of the first network device is an architecture in which the control plane of the CU (CU-CP) and the user plane of the CU (CU-UP) are separated, and the CU-CP It can be further divided into CU-CP1 and CU-CP2, and then CU-CP1 determines the fourth indication information and/or the first threshold. Then, CU-CP1 sends fourth indication information and/or the first threshold to CU-CP2. CU-CP2 sends fourth indication information and/or the first threshold to the terminal device through DU.
  • the DU may send the fourth indication information to the terminal device through a public RRC message or a dedicated RRC message.
  • the terminal device can record the random access report related to SDT under the instruction of the first network device based on receiving the fourth instruction information, or not record the random access report related to SDT. Therefore, it is beneficial for the first network device to flexibly control whether the terminal device enables the function of recording random access reports related to SDT. Further, since the terminal device can obtain an upper limit (ie, a first threshold) for the number of recorded first random access reports, the recording of the first random access report is triggered only when the number of recorded historical first random access reports is less than the first threshold. A random access report. It is beneficial to control the number of first random access reports stored internally in the terminal device.
  • Step 304 The terminal device initiates a random access process according to the configuration information.
  • the random access process is short data packet transmission based on random access.
  • the random access resource selected by the terminal according to the configuration information is applicable to at least one random access characteristic including SDT.
  • the random access process at least includes short data packet transmission based on random access. For example, if the random access resource is suitable for at least one or more random access characteristics, and the one or more random access characteristics do not include the SDT characteristic, then the random access process does not include random access based on short data packet transmission.
  • Step 304 is similar to step 202 in the corresponding embodiment of Figure 2. For details, please refer to the relevant description of step 202 above, which will not be described again here.
  • Step 305 When the number of historical first random access reports recorded by the terminal device is less than the first threshold, the terminal device records the first random access report, and the first random access report includes information related to the random access process. .
  • the first random access report is a random access report related to SDT.
  • the first random access report please refer to the relevant introduction in step 203 above, and will not be repeated here.
  • the terminal device After the terminal device successfully performs the SDT-related random access process, the terminal device will decide based on the first threshold whether to record the current SDT-related random access process information to generate a first random access report. When the number of historical first random access reports recorded by the terminal device is less than the first threshold, the terminal device records the first random access report related to SDT; when the number of historical first random access reports recorded by the terminal device is When the number of reports is greater than or equal to the first threshold, the terminal device no longer records the first random access report related to SDT.
  • the first threshold in this step may come from the fourth indication information. If the first network device and the terminal device do not execute step 303, the first threshold in this step may be predefined by the protocol, or may come from the network management device (for example, OAM device). For details, please refer to the previous step 203. The description of the first threshold will not be repeated here.
  • Step 306 The terminal device sends fifth instruction information to the second network device.
  • the second network device receives the fifth indication information from the terminal device.
  • Step 306 is an optional step.
  • the second network device may be the first network device, or may be another network device different from the first network device.
  • the fifth indication information is used to indicate the availability of the first random access report. It can also be understood that the fifth indication information is used to indicate that the terminal device stores the first random access report.
  • the second network device may perform random access report retrieval, that is, the second network device instructs the terminal device to report a random access report. Specifically, please refer to step 307 below.
  • the fifth indication information also includes random access report type information.
  • the fifth indication information can indicate whether the random access report stored by the terminal device is a traditional random access report (for example, a legacy RACH report), or a random access report related to one or more random access characteristics. (For example, a random access report containing SDT characteristics).
  • the one or more random access characteristics may be one or more random access characteristics that trigger random access, or may initiate (use) a random process.
  • One or more random access features are examples of random access report stored by the terminal device.
  • the terminal device may provide the aforementioned fifth indication information in the RRC message.
  • the RRC message may be any one or more of an RRC establishment complete message, an RRC reconfiguration complete message, an RRC reestablishment complete message, and an RRC recovery complete message.
  • the second network device can also obtain the fifth indication information.
  • the second network device is composed of a CU and a DU.
  • the DU can determine the fifth indication information after the random access procedure is completed, and can send the fifth indication information to the CU through the F1 interface.
  • the DU can indicate the availability of the RACH report and the type of the random access report to the CU through the F1 interface, that is, the fifth indication information.
  • the CU receives the fifth indication information sent by the DU through the F1 port.
  • the terminal device can send fifth indication information to the second network device to indicate whether the terminal device has a first random access report available. It is beneficial for the second network device to decide whether to obtain the first random access report from the terminal device after receiving the fifth instruction information, and it is beneficial for the network side to obtain the first random access report from the terminal device in a timely manner.
  • the second network device determines that the terminal device stores a random access report (for example, a first random access report) required by the second network device, the second network device will perform steps 307 and 308 in sequence.
  • a random access report for example, a first random access report
  • Step 307 The second network device sends sixth instruction information to the terminal device.
  • the terminal device receives sixth indication information from the second network device.
  • the sixth instruction information is used to instruct the terminal device to report the first random access report.
  • the terminal device After the terminal device receives the sixth indication information, the terminal device will send the first random access report to the second network device.
  • Step 308 The terminal device sends the first random access report to the second network device.
  • the second network device receives the first random access report from the terminal device.
  • Step 309 The second network device forwards the first random access report to the first network device.
  • the first network device receives the first random access report from the second network device.
  • Step 309 is an optional step.
  • the second network device may send part or all of the information in the above report (ie, the first random access report) to the first network device.
  • the second network device may also send the report type information to the first network device.
  • the reported type may be 5G (for example, NR or gNB), 4G (for example, eLTE or ng-eNB) connected to the 5G core network, 4G (for example, LTE or eNB) or other system or standard types.
  • the second network device sends the first network device to the first network device through the interface between the base station and the base station (for example, the X2 interface or the Xn interface). Some or all of the information reported.
  • the second network device may send the first network device to the first network device through a failure indication (FAILURE INDICATION, RLF INDICATION) message, a handover report (HANDOVER REPORT) message, an access and mobility indication (ACCESS AND MOBILITY INDICATION) message or other messages. Some or all of the information in the random access report.
  • the second network device may send part or all of the information of the first random access report to the first network device through the core network device.
  • the second network device sends part or all of the information of the first random access report to the core network device through the interface between the base station and the core network device (for example, the S1 interface or the NG interface), and the core network device sends the first random access report to the first network device. Forward the information received from the second network device.
  • the second network device may send part or all of the information of the first random access report to the first network device through at least one of the following messages on the S1 interface or the NG interface: uplink RAN configuration transmission (UPLINK RAN CONFIGURATION TRANSFER) message , downlink RAN configuration transmission (DOWNLIKN RAN CONFIGURATION TRANSFER) message, base station configuration transmission (eNB CONFIGURATION TRANSFER) message, core network equipment configuration transmission (MME CONFIGURATION TRANSFER) message or other messages.
  • UPLINK RAN CONFIGURATION TRANSFER uplink RAN configuration transmission
  • DOWNLIKN RAN CONFIGURATION TRANSFER downlink RAN configuration transmission
  • eNB CONFIGURATION TRANSFER base station configuration transmission
  • MME CONFIGURATION TRANSFER core network equipment configuration transmission
  • the terminal device can obtain the applicable random access configuration configured by the first network device for the terminal device based on the configuration information of the first network device.
  • the random access resource of the access characteristic initiates the random access process, and the terminal device can record the random access report related to the SDT after receiving the fourth instruction information issued by the first network device indicating that the random access report related to the SDT is recorded.
  • the first random access report corresponding to the SDT-related random access process. Therefore, a mechanism for recording the first random access report of the random access process related to SDT is proposed, which is beneficial for the terminal device to feed back the first random access report to the network side, thereby enabling the network side to optimize based on the first random access report.
  • the random access configuration corresponding to one or more random access features including SDT can be a random access resource configuration or a random access feature priority configuration, so that the random access process includes SDT. At least one random access characteristic can successfully initiate a random access process, thereby improving the success rate of the SDT random access process of the terminal device.
  • FIG. 4 it is a schematic structural diagram of a communication device 40 provided in this embodiment. It should be understood that the terminal device in the method embodiment corresponding to FIG. 2 or FIG. 3 may be based on the structure of the communication device 40 shown in FIG. 4 in this embodiment.
  • the communication device 40 includes at least one processor 401, at least one memory 402 and at least one transceiver 403. Among them, the processor 401, the memory 402 and the transceiver 403 are connected. Optionally, communication device 40 may also include an input device 405, an output device 406, and one or more antennas 404. Among them, the antenna 404 is connected to the transceiver 403, and the input device 405 and the output device 406 are connected to the processor 401.
  • the memory 402 is mainly used to store software programs and data.
  • the memory 402 may exist independently and be connected to the processor 401.
  • the memory 402 may be integrated with the processor 401, for example, integrated into one or more chips.
  • the memory 402 can store program codes for executing the technical solutions of the embodiments of the present application, and the execution is controlled by the processor 401.
  • Various types of computer program codes that are executed can also be regarded as drivers of the processor 401.
  • FIG. 4 in this embodiment only shows one memory and one processor.
  • the communication device 40 may have multiple processors or multiple memories, which are not limited here. .
  • the memory 402 may also be called a storage medium or a storage device.
  • Memory 402 may be in conjunction with the processor Storage elements on the same chip (ie, on-chip storage elements), or independent storage elements, are not limited in the embodiments of the present application.
  • the transceiver 403 can be used to support the reception or transmission of radio frequency signals between the communication device 40 and the access network equipment, and the transceiver 403 can be connected to the antenna 404.
  • Transceiver 403 includes a transmitter Tx and a receiver Rx.
  • one or more antennas 404 can receive radio frequency signals
  • the receiver Rx of the transceiver 403 is used to receive the radio frequency signals from the antennas 404 and convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and convert the digital baseband signals into digital baseband signals.
  • the signal or digital intermediate frequency signal is provided to the processor 401, so that the processor 401 performs further processing on the digital baseband signal or digital intermediate frequency signal, such as demodulation processing and decoding processing.
  • the transmitter Tx in the transceiver 403 is also used to receive the modulated digital baseband signal or digital intermediate frequency signal from the processor 401, and convert the modulated digital baseband signal or digital intermediate frequency signal into a radio frequency signal, and transmit it through a or Multiple antennas 404 transmit the radio frequency signals.
  • the receiver Rx can selectively perform one or more levels of down-mixing processing and analog-to-digital conversion processing on the radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency signal.
  • the sequence of the aforementioned down-mixing processing and analog-to-digital conversion processing is The order is adjustable.
  • the transmitter Tx can selectively perform one or more levels of upmixing processing and digital-to-analog conversion processing on the modulated digital baseband signal or digital intermediate frequency signal to obtain a radio frequency signal.
  • the upmixing processing and digital-to-analog conversion processing The order is adjustable.
  • Digital baseband signals and digital intermediate frequency signals can be collectively referred to as digital signals.
  • the aforementioned transceiver 403 may also be called a transceiver unit, a transceiver, a transceiver device, etc.
  • the devices used to implement the receiving function in the transceiver unit can be regarded as the receiving unit
  • the devices used in the transceiver unit used to implement the transmitting function can be regarded as the transmitting unit, that is, the transceiver unit includes a receiving unit and a transmitting unit, and the receiving unit also It can be called a receiver, input port, receiving circuit, etc.
  • the sending unit can be called a transmitter, transmitter, or transmitting circuit, etc.
  • the processor 401 may be a baseband processor or a central processing unit (CPU).
  • the baseband processor and the CPU may be integrated together or separated.
  • the processor 401 can be used to implement various functions for the terminal device, for example, to process communication protocols and communication data, or to control the entire terminal device, execute software programs, and process data of software programs; or to assist Complete computing processing tasks, such as graphics and image processing or audio processing, etc.; or the processor 401 is used to implement one or more of the above functions.
  • the output device 406 communicates with the processor 401 and can display information in a variety of ways, which are not limited here.
  • the communication device 40 is used to execute the method of the terminal device in the corresponding embodiment of FIG. 2 or FIG. 3 .
  • the transceiver 403 in the communication device 40 is used to receive configuration information from the network device.
  • the configuration information includes a random access resource set for random access characteristics.
  • the random access resource set includes SDT random access for short data packet transmission. Characteristic random access resources; the processor 401 is configured to initiate a random access process according to the configuration information when one or more random access characteristics including at least SDT meet the triggering conditions of random access; and, record the first random access process.
  • Access report, the first random access report includes information related to the random access process.
  • the random access process at least includes short data packet transmission based on random access.
  • the random access feature includes at least one of the following: reduced capability terminal equipment feature, short data packet transmission SDT feature, coverage enhancement feature, and network slicing feature.
  • the information related to the random access process in the first random access report includes one or more of the following:
  • the first indication information is used to indicate at least one random access characteristic that triggers the random access process, and the at least one random access characteristic includes the SDT characteristic;
  • the second indication information is used to indicate the random access characteristics applicable to (corresponding to) the random access resources determined by the terminal device.
  • the random access resources are applicable to all or part of one or more random access characteristics including at least the SDT characteristic.
  • the processor 401 is also configured to determine random access resources for the random access process based on the random access resource set and the priority information of the random access characteristics.
  • the random access resources are suitable for at least including: One or more random access features including SDT.
  • the transceiver 403 is also configured to send third indication information to the network device.
  • the third indication information is used to indicate whether the terminal device supports recording random access reports related to SDT.
  • the transceiver 403 is also configured to receive fourth indication information from the network device.
  • the fourth indication information is used to instruct the terminal device whether to record a random access report related to SDT.
  • the fourth indication information includes a first threshold, and the first threshold is when the terminal device records the first random access report.
  • the processor 401 is specifically configured to record the first random access report when the number of recorded historical first random access reports is less than a first threshold.
  • the transceiver 403 is also configured to send fifth indication information to the network device, where the fifth indication information is used to indicate the availability of the first random access report.
  • the transceiver 403 is also configured to receive sixth indication information from the network device, where the sixth indication information is used to instruct the terminal device to report the first random access report; and, to send the third random access report to the network device.
  • a random access report is also configured to receive sixth indication information from the network device, where the sixth indication information is used to instruct the terminal device to report the first random access report; and, to send the third random access report to the network device.
  • FIG. 5 it is a schematic structural diagram of another communication device 50 provided in this embodiment. It should be understood that the network equipment in the method embodiment corresponding to Figure 2 or Figure 3 can be based on the structure of the communication device 50 shown in Figure 5 in this embodiment.
  • the communication device 50 includes at least one processor 501, at least one memory 502, at least one transceiver 503, at least one network interface 505 and one or more antennas 504.
  • the processor 501, the memory 502, the transceiver 503 and the network interface 505 are connected through a connecting device, and the antenna 504 is connected to the transceiver 503.
  • the aforementioned connection device may include various interfaces, transmission lines or buses, etc., which is not limited in this embodiment.
  • the memory 502 is mainly used to store software programs and data.
  • the memory 502 may exist independently and be connected to the processor 501.
  • the memory 502 may be integrated with the processor 501, for example, integrated into one or more chips.
  • the memory 502 can store program codes for executing the technical solutions of the embodiments of the present application, and the execution is controlled by the processor 501.
  • Various types of computer program codes that are executed can also be regarded as drivers of the processor 501.
  • FIG. 5 in this embodiment only shows one memory and one processor.
  • the communication device 50 may have multiple processors or multiple memories, which are not limited here.
  • the memory 502 may also be called a storage medium or a storage device.
  • the memory 502 may be a storage element on the same chip as the processor (ie, an on-chip storage element), or an independent storage element, which is not limited in the embodiment of the present application.
  • the transceiver 503 may be used to support the reception or transmission of radio frequency signals between the communication device 50 and the terminal device, and the transceiver 503 may be connected to the antenna 504.
  • Transceiver 503 includes a transmitter Tx and a receiver Rx.
  • one or more antennas 504 can receive radio frequency signals
  • the receiver Rx of the transceiver 503 is used to receive the radio frequency signals from the antennas 504 and convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and convert the digital baseband signals into digital baseband signals.
  • the signal or digital intermediate frequency signal is provided to the processor 501 so that the processor 501 performs further processing on the digital baseband signal or digital intermediate frequency signal, such as demodulation processing and decoding processing.
  • the transmitter Tx in the transceiver 503 is also used to receive the modulated digital baseband signal or digital intermediate frequency signal from the processor 501, and convert the modulated digital baseband signal or digital intermediate frequency signal into a radio frequency signal, and pass it through a or Multiple antennas 504 transmit the radio frequency signals.
  • the receiver Rx can selectively perform one or more levels of down-mixing processing and analog-to-digital conversion processing on the radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency signal.
  • the sequence of the aforementioned down-mixing processing and analog-to-digital conversion processing is The order is adjustable.
  • the transmitter Tx can selectively perform one or more levels of upmixing processing and digital-to-analog conversion processing on the modulated digital baseband signal or digital intermediate frequency signal to obtain a radio frequency signal.
  • the upmixing processing and digital-to-analog conversion processing The order is adjustable.
  • Digital baseband signals and digital intermediate frequency signals can be collectively referred to as digital signals.
  • the aforementioned transceiver 503 may also be called a transceiver unit, a transceiver, a transceiver device, etc.
  • the devices used to implement the receiving function in the transceiver unit can be regarded as the receiving unit
  • the devices used in the transceiver unit used to implement the transmitting function can be regarded as the transmitting unit, that is, the transceiver unit includes a receiving unit and a transmitting unit, and the receiving unit also It can be called a receiver, input port, receiving circuit, etc.
  • the sending unit can be called a transmitter, transmitter, or transmitting circuit, etc.
  • the aforementioned processor 501 is mainly used to process communication protocols and communication data, control the entire network equipment, execute software programs, and process data of the software programs. For example, it is used to support the communication device 50 to execute what is described in the previous embodiments. Actions.
  • the communication device 50 may include a baseband processor and a central processing unit.
  • the baseband processor is mainly used to process communication protocols and communication data.
  • the central processor is mainly used to control the entire communication device 50, execute software programs, and process software. program data.
  • the processor 501 can integrate the functions of a baseband processor and a central processor. Those skilled in the art can understand that the baseband processor and the central processor can also be independent processors, interconnected through technologies such as buses.
  • the communication device 50 may include multiple baseband processors to adapt to different network standards, and the communication device 50 may include multiple central processors to enhance its processing. Depending on the processing capabilities, the various components of the communication device 50 may be connected through various buses.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the function of processing communication protocols and communication data can be built into the processor, or can be stored in the memory in the form of a software program, and the processor executes the software program to implement the baseband processing function.
  • the aforementioned network interface 505 is used to connect the communication device 50 to other communication devices through communication links.
  • the network interface 505 may include a network interface between the communication device 50 and the core network element, such as the S1 interface; the network interface 505 may also include the communication device 50 and other network devices (such as other access network devices or core network devices). network interface between elements), such as X2 or Xn interface.
  • the communication device 50 is used to perform the aforementioned method of the network device in the corresponding embodiment of FIG. 2 or FIG. 3 .
  • the processor 501 in the communication device 50 is used to determine configuration information.
  • the configuration information includes a random access resource set for random access characteristics.
  • the random access resource set includes a random access resource set for short data packet transmission SDT random access characteristics.
  • Access resources and configuration information are used by the terminal device to initiate short data packet transmission based on random access and record the first random access report.
  • the first random access report includes information related to the random access process.
  • the random access feature includes at least one of the following: reduced capability terminal equipment feature, short data packet transmission SDT feature, coverage enhancement feature, and network slicing feature.
  • the configuration information also includes priority information of random access characteristics.
  • the priority information of random access characteristics is used to determine random access resources for the random access process based on the random access resource set.
  • Access resources are suitable for one or more random access features including at least SDT;
  • Information related to the random access process includes one or more of the following:
  • the first indication information is used to indicate at least one random access characteristic that triggers the random access process, and the at least one random access characteristic includes the SDT characteristic;
  • the second indication information is used to indicate the random access characteristics applicable to (corresponding to) the random access resources determined by the terminal device.
  • the random access resources are applicable to all or part of one or more random access characteristics including at least the SDT characteristic.
  • the transceiver 503 is also configured to receive third indication information from the terminal device.
  • the third indication information is used to indicate whether the terminal device supports recording random access reports related to SDT.
  • the transceiver 503 is also configured to send fourth indication information to the terminal device.
  • the fourth indication information is used to instruct the terminal device whether to record a random access report related to SDT.
  • the fourth indication information includes a first threshold, and the first threshold is an upper limit of the number of first random access reports recorded by the terminal device.
  • the transceiver 503 is also configured to receive fifth indication information from the terminal device, where the fifth indication information is used to indicate the availability of the first random access report.
  • the transceiver 503 is also configured to send sixth instruction information to the terminal device, where the sixth instruction information is used to instruct the terminal device to report the first random access report; and, receive the third random access report from the terminal device. A random access report.
  • this application also provides a communication device 60.
  • the communication device 60 may be a terminal device or an access network device, or may be a component (for example, an integrated circuit, a chip, etc.) of the terminal device or the access network device.
  • the communication device 60 may also be other communication modules used to implement the methods in the method embodiments of this application.
  • the communication device 60 may include a processing module 601 (or referred to as a processing unit).
  • a processing module 601 or referred to as a processing unit.
  • an interface module 602 or a transceiver unit or a transceiver module
  • a storage module 603 or a storage unit
  • the interface module 602 is used to implement communication with other devices.
  • the interface module 602 may be, for example, a transceiver module or an input/output module.
  • one or more modules in Figure 6 may be implemented by one or more processors, or by one or more processors and memories; or by one or more processors and a transceiver; or may be implemented by one or more processors, memories, and transceivers, which are not limited in the embodiments of the present application.
  • the processor, memory, and transceiver can be set individually, It can also be integrated into one.
  • the communication device 60 has the function of implementing the terminal device described in the embodiment of this application.
  • the communication device 60 includes modules or units or means (means) corresponding to the terminal equipment executing the steps involved in the terminal equipment described in the embodiments of the present application.
  • the functions, units or means (means) can be implemented by software or by hardware. , it can also be implemented through hardware to execute corresponding software, or it can also be implemented through a combination of software and hardware.
  • the communication device 60 has the function of implementing the access network equipment described in the embodiments of this application.
  • the communication device 60 includes modules or units or means (means) corresponding to the access network equipment performing the steps involved in the access network equipment described in the embodiments of this application.
  • the functions, units or means (means) can be implemented through software. Realization, either through hardware, or through hardware executing corresponding software implementation, or through a combination of software and hardware. For details, reference may be made to the corresponding descriptions in the foregoing corresponding method embodiments.
  • each module in the communication device 60 in the embodiment of the present application can be used to execute the method of the terminal device in the corresponding embodiment of FIG. 2 or FIG. 3 in the embodiment of the present application.
  • the interface module 602 in the communication device 60 is used to receive configuration information from the network device.
  • the configuration information includes a random access resource set for random access characteristics.
  • the random access resource set includes SDT random for short data packet transmission. Random access resources of access characteristics;
  • the processing module 601 is configured to initiate a random access process according to the configuration information when one or more random access characteristics including at least SDT meet the triggering conditions of random access; and, record the first Random access report, the first random access report includes information related to the random access process.
  • the random access feature includes at least one of the following: reduced capability terminal equipment feature, short data packet transmission SDT feature, coverage enhancement feature, and network slicing feature.
  • each module in the communication device 60 in the embodiment of the present application can be used to execute the method of the network device in the corresponding embodiment of FIG. 2 or FIG. 3 in the embodiment of the present application.
  • the processing module 601 in the communication device 60 is used to determine configuration information.
  • the configuration information includes a random access resource set for random access characteristics.
  • the random access resource set includes SDT random access characteristics for short data packet transmission. Random access resources, configuration information is used by the terminal device to initiate short data packet transmission based on random access.
  • the interface module 602 is used to send configuration information to the terminal device.
  • the random access feature includes at least one of the following: reduced capability terminal equipment feature, short data packet transmission SDT feature, coverage enhancement feature, and network slicing feature.
  • the present application provides a computer program product including one or more computer instructions.
  • the processes or functions according to the embodiments of the present application are generated in whole or in part.
  • the method related to the network device in the aforementioned Figure 2 or Figure 3 is implemented.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted over a wired connection from a website, computer, server, or data center (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (for example, infrared, wireless, microwave, etc.) means to transmit to another website, computer, server or data center.
  • the computer-readable storage medium can be any available medium that a computer can store, or a data storage device such as a server or data center integrated with one or more available media.
  • the available media may be magnetic media (e.g., floppy disks, hard disks, tapes), optical media (e.g., digital versatile discs (DVD)), or semiconductor media (e.g., solid state disks (SSD)) wait.
  • this application also provides a computer-readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the network device-related method in the aforementioned FIG. 2 or FIG. 3 .
  • the present application also provides a computer-readable storage medium that stores a computer program, and the computer program is executed by a processor to implement the method related to the terminal device in the aforementioned FIG. 2 or FIG. 3 .
  • the size of the sequence numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application.
  • the implementation process constitutes any limitation.

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Abstract

本申请提供了一种随机接入报告记录方法及相关的通信装置。终端设备接收来自网络设备的配置信息，所述配置信息包括用于随机接入特性的随机接入资源集合，所述随机接入特性包括以下至少一项：降低能力的终端设备特性、短数据包传输SDT特性、覆盖增强特性、以及网络切片特性；当至少包括短数据包传输SDT特性的一种或者多种随机接入特性满足随机接入的触发条件时，所述终端设备根据所述配置信息发起随机接入过程，所述随机接入过程至少包括基于随机接入的短数据包传输；所述终端设备记录第一随机接入报告，所述第一随机接入报告包括与所述随机接入过程相关的信息。通过上述方案，实现了SDT随机接入过程的记录。

Description

一种随机接入报告记录方法以及通信装置
本申请要求于2022年08月31日提交中国国家知识产权局、申请号为202211055181.9申请名称为“一种随机接入报告记录方法以及通信装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信领域，尤其涉及一种随机接入报告记录方法以及通信装置。
背景技术
短数据包传输(small data transmission，SDT)机制允许终端设备在仅有少量的上行数据需要发送时，终端设备能够在无线资源控制非激活(RRC_inactive)态完成数据传输，而无需进入无线资源控制连接(RRC_connected)态。SDT避免了频繁触发RRC连接恢复过程带来的信令开销和能源消耗。
目前，SDT可以分为基于配置授权的SDT(Configured Grant-based SDT，CG-SDT)和基于随机接入的SDT(Random Access-based SDT，RA-SDT)。其中，RA-SDT又包括基于竞争的四步随机接入(4-stepCBRA)和基于竞争的两步随机接入(2-step CBRA)，在4-step CBRA中，终端设备通过消息3(即message 3，Msg3)发送RRC恢复请求消息(即RRC resume request消息)以及SDT数据；在2-step CBRA中，终端设备通过消息A(即message A，MsgA)发送RRC恢复请求消息以及SDT数据。
在传统的随机接入过程中，为了避免由于网络侧配置的不合理造成的随机接入失败，终端设备能够记录随机接入过程中的信息并生成该随机接入过程对应的随机接入报告(RACH report)。该随机接入报告包括终端设备记录的与随机接入过程相关的参数，用于网络侧识别随机接入过程中的问题并及时优化随机接入配置，从而提升终端设备的随机接入过程的成功率。然而，当前没有针对SDT随机接入过程(即基于随机接入的SDT)相关的随机接入报告记录方案。
发明内容
本申请提供了一种随机接入报告记录方法以及通信装置，用于终端设备记录与基于随机接入的SDT相关的随机接入报告。
第一方面，本申请提供了一种随机接入报告记录方法，该随机接入报告记录方法可以由终端设备执行，也可以由终端设备的部件(例如，处理器、芯片或芯片系统等部件)执行。以终端设备为例，在该方法中，终端设备接收来自网络设备的配置信息，所述配置信息包括用于随机接入特性的随机接入资源集合，所述随机接入特性包括以下至少一项：降低能力的终端设备特性、短数据包传输SDT特性、覆盖增强特性、以及网络切片特性；当至少包括短数据包传输SDT特性的一种或者多种随机接入特性满足随机接入的触发条件时，所述终端设备根据所述配置信息选择随机接入资源并发起随机接入过程。终端设备记录第一随机接入报告，第一随机接入报告包括与随机接入过程相关的信息。
结合第一方面，在一种可能的实施方式中，所述随机接入资源适用于至少包括SDT特性的一种或多种随机接入特性，则所述随机接入过程至少包括基于随机接入的短数据包传输；所述终端设备记录第一随机接入报告，所述第一随机接入报告包括与所述随机接入过程相关的信息。
结合第一方面，在另一种可能的实施方式中，所述随机接入资源适用于至少一种或多种随机接入特性，该一种或多种随机接入特性不包括SDT特性，则所述随机接入过程不包括基于随机接入的短数据包传输；所述终端设备记录第一随机接入报告，所述第一随机接入报告包括与所述随机接入过程相关的信息。
结合第一方面，在一种可能的实施方式中，配置信息还包括至少一种随机接入特性的优先级信息，该随机接入特性的优先级信息用于终端设备从随机接入资源集合中为随机接入过程确定可用的随机接入资源，随机接入资源适用于至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性。示例性的，终端设备发起针对全部或者部分随机接入特性的随机接入过程。
结合第一方面，在一种可能的实施方式中，第一随机接入报告中的与随机接入过程相关的信息包括以下一项或多项：
第一指示信息，第一指示信息用于指示触发随机接入过程的至少一种随机接入特性，至少一种随机接入特性包括SDT特性。
至少一种随机接入特性的优先级信息。
第二指示信息，第二指示信息用于指示终端设备在随机接入资源集合中选择的可用的随机接入资源所适用(对应)的随机接入特性，随机接入资源适用于至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性。可选的，随机接入资源所适用的随机接入特性为至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性，也可以是随机接入资源不指定适用于特定的一个或者多个随机接入特性。
本实施方式中，明确了第一随机接入报告中的与随机接入过程相关的信息的内容，有利于网络设备在收到前述第一随机接入报告之后，基于第一指示信息、特性优先级信息或第二指示信息中的任意一项确定该第一随机接入报告是记录SDT随机接入相关的随机接入报告，而不是传统技术中的随机接入报告。
结合第一方面，在一种可能的实施方式中，与随机接入过程相关的信息还包括以下任意一项或者多项：随机接入的小区标识信息、随机接入的频点信息、时频域配置信息、信号质量测量信息、信号质量测量信息满足质量门限的指示信息、进行随机接入尝试的波束信息、两步随机接入待传输数据量、以及两步随机接入的物理上行共享信道PUSCH配置信息。
本申请中，终端设备能够记录与SDT相关的第一随机接入报告。因此，网络侧基于第一随机接入报告优化随机接入配置，从而提升终端设备的SDT随机接入过程的成功率。
结合第一方面，在一种可能的实施方式中，该方法还包括以下至少一项：
终端设备向网络设备发送第三指示信息，第三指示信息用于指示终端设备是否支持记录与SDT相关的随机接入报告；
或者，终端设备向网络设备发送第三指示信息，第三指示信息用于指示终端设备支持记录与SDT相关的随机接入报告。
结合第一方面，在一种可能的实施方式中，该方法还包括：终端设备接收来自网络设备的第四指示信息，第四指示信息用于指示终端设备是否记录与SDT相关的随机接入报告；
或者，终端设备向网络设备发送第四指示信息，第四指示信息用于指示终端设备记录与SDT相关的随机接入报告。
本实施方式中，终端设备能够基于收到的第四指示信息，记录与SDT相关的随机接入报，或者，不记录与SDT相关的随机接入报告。因此，有利于网络设备灵活控制终端设备是否开启记录与SDT相关的随机接入报告的功能。
结合第一方面，在一种可能的实施方式中，第四指示信息包括第一阈值，第一阈值为终端设备记录第一随机接入报告的数量的上限。终端设备记录第一随机接入报告，包括：当终端设备已记录的历史第一随机接入报告的数量小于第一阈值时，终端设备记录第一随机接入报告。
可选的，当终端设备已记录的历史第一随机接入报告的数量大于或等于第一阈值时，终端设备不记录第一随机接入报告。
结合第一方面，在一种可能的实施方式中，该方法还包括：终端设备向网络设备发送第五指示信息，第五指示信息用于指示第一随机接入报告的可获得性。
本实施方式中，终端设备能够向网络设备发送第五指示信息以指示终端设备有可提供的第一随机接入报告。可选的，第五指示信息还可以用于指示第一报告的类型。例如，第五指示信息指示随机接入报告是legacy RACH报告，还是SDT相关的RACH报告。有利于网络设备在收到第五指示信息之后，决策是否从终端设备获取第一随机接入报告。
结合第一方面，在一种可能的实施方式中，该方法还包括：终端设备接收来自网络设备的第六指示信息，第六指示信息用于指示终端设备上报第一随机接入报告；然后，终端设备向网络设备发送第一随 机接入报告。
第二方面，本申请提供了一种随机接入报告记录方法，该随机接入报告记录方法可以由网络设备(例如，接入网设备)执行，也可以由网络设备的部件(例如，处理器、芯片或芯片系统等部件)执行。以网络设备为例，在该方法中，网络设备向终端设备发送配置信息，配置信息包括用于随机接入特性的随机接入资源集合，所述随机接入特性包括以下至少一项：降低能力的终端设备特性、短数据包传输SDT特性、覆盖增强特性、以及网络切片特性，终端设备基于配置信息选择随机接入资源并发起随机接入过程。可选的，网络还可配置终端设备记录第一随机接入报告，第一随机接入报告包括与随机接入过程相关的信息。
结合第二方面，在一种可能的实施方式中，配置信息还包括至少一种随机接入特性的优先级信息，随机接入特性的优先级信息用于基于随机接入资源集合为随机接入过程确定可用的随机接入资源，该随机接入资源适用于至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性。
结合第二方面，在一种可能的实施方式中，第一随机接入报告中的与随机接入过程相关的信息包括以下一项或多项：
第一指示信息，第一指示信息用于指示触发随机接入过程的至少一种随机接入特性，至少一种随机接入特性包括SDT特性。
至少一种随机接入特性的优先级信息。
第二指示信息，第二指示信息用于指示终端设备在随机接入资源集合中选择的可用的随机接入资源所适用(对应)的随机接入特性，随机接入资源适用于至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性。可选的，随机接入资源所适用的随机接入特性为至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性，也可以是随机接入资源不指定适用于特定的一个或者多个随机接入特性。
结合第二方面，在一种可能的实施方式中，与随机接入过程相关的信息还包括以下任意一项或者多项：随机接入的小区标识信息、随机接入的频点信息、时频域配置信息、信号质量测量信息、信号质量测量信息满足质量门限的指示信息、进行随机接入尝试的波束信息、两步随机接入待传输数据量、以及两步随机接入的物理上行共享信道PUSCH配置信息。
结合第二方面，在一种可能的实施方式中，方法还包括：网络设备接收来自终端设备的第三指示信息，第三指示信息用于指示终端设备是否支持记录与SDT相关的随机接入报告；或者，网络设备接收来自终端设备的第三指示信息，第三指示信息用于指示终端设备支持记录与SDT相关的随机接入报告。
结合第二方面，在一种可能的实施方式中，方法还包括：网络设备向终端设备发送第四指示信息，第四指示信息用于指示终端设备是否记录与SDT相关的随机接入报告；或者，网络设备接收来自终端设备的第四指示信息，第四指示信息用于指示终端设备记录与SDT相关的随机接入报告。
结合第二方面，在一种可能的实施方式中，第四指示信息包括第一阈值，第一阈值为终端设备记录第一随机接入报告的数量的上限。
结合第二方面，在一种可能的实施方式中，该方法还包括：网络设备接收来自终端设备的第五指示信息，第五指示信息用于指示第一随机接入报告的可获得性。可选的，第五指示信息还可以用于指示第一报告的类型。例如，第五指示信息指示随机接入报告是legacy RACH报告，还是SDT相关的RACH报告。
结合第二方面，在一种可能的实施方式中，该方法还包括：网络设备向终端设备发送第六指示信息，第六指示信息用于指示终端设备上报第一随机接入报告；网络设备接收来自终端设备的第一随机接入报告。
需要说明的是，本方面的具体实施方式和有益效果与前文第一方面中的部分实施方式类似，具体可参见第一方面的具体实施方式和其有益效果，在此不再赘述。
第三方面，本申请提供了一种通信装置，该通信装置可以是终端设备，也可以是终端设备的部件(例如，处理器、芯片或芯片系统等部件)。该通信装置包括：收发模块和处理模块。其中，收发模块，用于接收来自网络设备的配置信息，配置信息包括用于随机接入特性的随机接入资源集合，该随机接入特 性包括短数据包传输SDT特性，该随机接入资源集合包括用于短数据包传输SDT随机接入特性的随机接入资源；处理模块，用于当至少包括SDT特性的一种或者多种随机接入特性满足随机接入的触发条件，根据配置信息发起随机接入过程，以及，记录第一随机接入报告，第一随机接入报告包括与随机接入过程相关的信息。
结合第三方面，在一种可能的实施方式中，所述随机接入特性还包括：降低能力的终端设备特性、覆盖增强特性或网络切片特性。
结合第三方面，在一种可能的实施方式中，触发随机接入过程的一种或者多种随机接入特性包括SDT特性，所述随机接入资源适用于至少包括SDT特性的一种或多种随机接入特性，则所述随机接入过程至少包括基于随机接入的短数据包传输；所述处理模块，用于记录第一随机接入报告，所述第一随机接入报告包括与所述随机接入过程相关的信息。
结合第三方面，在另一种可能的实施方式中，触发随机接入过程的一种或者多种随机接入特性包括SDT特性，所述随机接入资源适用于至少一种或多种随机接入特性，该一种或多种随机接入特性不包括SDT特性，则所述随机接入过程不包括基于随机接入的短数据包传输；所述处理模块，用于记录第一随机接入报告，所述第一随机接入报告包括与所述随机接入过程相关的信息。
结合第三方面，在一种可能的实施方式中，第一随机接入报告中与随机接入过程相关的信息包括以下一项或多项：
第一指示信息，第一指示信息用于指示触发随机接入过程的至少一种随机接入特性，至少一种随机接入特性包括SDT特性。
至少一种随机接入特性的优先级信息。
第二指示信息，第二指示信息用于指示终端设备在随机接入资源集合中选择的可用的随机接入资源所适用(对应)的随机接入特性，随机接入资源适用于至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性。可选的，随机接入资源所适用的随机接入特性为至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性，也可以是随机接入资源不指定适用于特定的一个或者多个随机接入特性。
结合第三方面，在一种可能的实施方式中，处理模块，还用于基于随机接入资源集合和随机接入特性的优先级信息为随机接入过程确定可用的随机接入资源，随机接入资源适用于至少包括SDT特性在内的一种或者多种随机接入特性中的全部或者部分随机接入特性。示例性的，处理模块，用于发起针对全部或者部分随机接入特性的随机接入过程。
结合第三方面，在一种可能的实施方式中，收发模块，还用于向网络设备发送第三指示信息，第三指示信息用于指示终端设备是否支持记录与SDT相关的随机接入报告；或者，收发模块，还用于向网络设备发送第三指示信息，第三指示信息用于指示终端设备支持记录与SDT相关的随机接入报告。
结合第三方面，在一种可能的实施方式中，收发模块，还用于接收来自网络设备的第四指示信息，第四指示信息用于指示终端设备是否记录与SDT相关的随机接入报告；或者，收发模块，还用于接收来自网络设备的第四指示信息，第四指示信息用于指示终端设备记录与SDT相关的随机接入报告。
结合第三方面，在一种可能的实施方式中，第四指示信息包括第一阈值，第一阈值为终端设备记录第一随机接入报告的数量的上限。处理模块，具体用于当已记录的历史第一随机接入报告的数量小于第一阈值时，记录第一随机接入报告。
结合第三方面，在一种可能的实施方式中，收发模块，还用于向网络设备发送第五指示信息，第五指示信息用于指示第一随机接入报告的可获得性。可选的，第五指示信息还可以用于指示第一报告的类型。例如，第五指示信息指示随机接入报告是legacy RACH报告，还是SDT相关的RACH报告。
结合第三方面，在一种可能的实施方式中，收发模块，还用于接收来自网络设备的第六指示信息，第六指示信息用于指示终端设备上报第一随机接入报告；以及，向网络设备发送第一随机接入报告。
需要说明的是，本方面的具体实施方式和有益效果与前文第一方面中的部分实施方式类似，具体可参见第一方面的具体实施方式和其有益效果，在此不再赘述。
第四方面，本申请提供了一种通信装置，该通信装置可以是网络设备，也可以是网络设备的部件(例 如，处理器、芯片或芯片系统等部件)。该通信装置包括：收发模块和处理模块。其中，处理模块，用于确定配置信息，配置信息包括用于随机接入特性的随机接入资源集合，该随机接入特性包括短数据包传输SDT特性，该随机接入资源集合包括用于短数据包传输SDT随机接入特性的随机接入资源，终端设备基于配置信息选择随机接入资源并发起随机接入过程。可选的，网络还可配置终端设备记录第一随机接入报告，第一随机接入报告包括与随机接入过程相关的信息。收发模块，用于向终端设备发送配置信息。
结合第四方面，在一种可能的实施方式中，所述随机接入特性还包括：降低能力的终端设备特性、覆盖增强特性或网络切片特性。
结合第四方面，在一种可能的实施方式中，配置信息还包括至少一种随机接入特性的优先级信息，随机接入特性的优先级信息用于基于随机接入资源集合为随机接入过程确定可用的随机接入资源，随机接入资源适用于至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性。
结合第四方面，在一种可能的实施方式中，与随机接入过程相关的信息包括以下一项或多项：
第一指示信息，第一指示信息用于指示触发随机接入过程的至少一种随机接入特性，至少一种随机接入特性包括SDT特性。
至少一种随机接入特性的优先级信息。
第二指示信息，第二指示信息用于指示终端设备在随机接入资源集合中选择的可用的随机接入资源所适用(对应)的随机接入特性，随机接入资源适用于至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性。可选的，随机接入资源所适用的随机接入特性为至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性，也可以是随机接入资源不指定适用于特定的一个或者多个随机接入特性。
结合第四方面，在一种可能的实施方式中，收发模块，还用于接收来自终端设备的第三指示信息，第三指示信息用于指示终端设备是否支持记录与SDT相关的随机接入报告；或者，收发模块，还用于接收来自终端设备的第三指示信息，第三指示信息用于指示终端设备支持记录与SDT相关的随机接入报告。
结合第四方面，在一种可能的实施方式中，收发模块，还用于向终端设备发送第四指示信息，第四指示信息用于指示终端设备是否记录与SDT相关的随机接入报告；或者，收发模块，还用于向终端设备发送第四指示信息，第四指示信息用于指示终端设备记录与SDT相关的随机接入报告。
可选的，第四指示信息包括第一阈值，第一阈值为终端设备记录第一随机接入报告的数量的上限。
结合第四方面，在一种可能的实施方式中，收发模块，还用于接收来自终端设备的第五指示信息，第五指示信息用于指示第一随机接入报告的可获得性。可选的，第五指示信息还可以用于指示第一报告的类型。例如，第五指示信息指示随机接入报告是legacy RACH报告，还是SDT相关的RACH报告。
结合第四方面，在一种可能的实施方式中，收发模块，还用于向终端设备发送第六指示信息，第六指示信息用于指示终端设备上报第一随机接入报告；以及，接收来自终端设备的第一随机接入报告。
需要说明的是，本方面的具体实施方式和有益效果与前文第二方面中的部分实施方式类似，具体可参见第二方面的具体实施方式和其有益效果，在此不再赘述。
第五方面，本申请实施例提供了一种通信装置，该通信装置可以是前述实施方式中的终端设备，也可以是该终端设备内的芯片。该通信装置可以包括处理模块和收发模块。当该通信装置是终端设备时，该处理模块可以是处理器，该收发模块可以是收发器；该终端设备还可以包括存储模块，该存储模块可以是存储器；该存储模块用于存储指令，该处理模块执行该存储模块所存储的指令，以使该终端设备执行第一方面或第一方面的任一种实施方式中的方法法。当该通信装置是终端设备内的芯片时，该处理模块可以是处理器，该收发模块可以是输入/输出接口、管脚或电路等；该处理模块执行存储模块所存储的指令，以使该终端设备执行第一方面或第一方面的任一种实施方式中的方法。该存储模块可以是该芯片内的存储模块(例如，寄存器、缓存等)，也可以是该终端设备内的位于该芯片外部的存储模块(例如，只读存储器、随机存取存储器等)。
第六方面，本申请实施例提供了一种通信装置，该通信装置可以是前述实施方式中的接入网设备， 也可以是该接入网设备内的芯片。该通信装置可以包括处理模块和收发模块。当该通信装置是接入网设备时，该处理模块可以是处理器，该收发模块可以是收发器；该接入网设备还可以包括存储模块，该存储模块可以是存储器；该存储模块用于存储指令，该处理模块执行该存储模块所存储的指令，以使该终端设备执行第二方面或第二方面的任一种实施方式中的方法。当该通信装置是接入网设备内的芯片时，该处理模块可以是处理器，该收发模块可以是输入/输出接口、管脚或电路等；该处理模块执行存储模块所存储的指令，以使该终端设备执行第二方面或第二方面的任一种实施方式中的方法。该存储模块可以是该芯片内的存储模块(例如，寄存器、缓存等)，也可以是该接入网设备内的位于该芯片外部的存储模块(例如，只读存储器、随机存取存储器等)。
第七方面，本申请提供了一种通信装置，该装置可以是集成电路芯片。该集成电路芯片包括处理器。该处理器与存储器耦合，该存储器用于存储程序或指令，当该程序或指令被该处理器执行时，使得该通信装置执行如前述各个方面的中的任一种实施方式所介绍的方法。
第八方面，本申请实施例提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得该计算机执行如前述各个方面中的任一种实施方式所介绍的方法。
第九方面，本申请实施例提供了一种计算机可读存储介质，包括指令，当该指令在计算机上运行时，以使得计算机执行如前各个方面中的任一种实施方式所介绍的方法。
第十方面，本申请实施例提供了一种通信系统，该通信系统包括执行前述第一方面以及第一方面的任一种实施方式中的终端设备，执行前述第二方面以及第二方面的任一种实施方式中的网络设备。
附图说明
图1A为本申请提出的随机接入报告记录方法适用的一个网络架构图；
图1B为本申请提出的随机接入报告记录方法涉及的网络设备的一个结构示意图；
图1C为本申请提出的随机接入报告记录方法涉及的网络设备的另一个结构示意图；
图2为本申请中随机接入报告记录方法的一个流程图；
图3为本申请中随机接入报告记录方法的另一个流程图；
图4为本申请中通信装置的一个实施例示意图；
图5为本申请中通信装置的另一个实施例示意图；
图6为本申请中通信装置的另一个实施例示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
为便于理解，下面先对本申请提出的随机接入报告记录方法的系统架构和应用场景进行介绍：
本申请提出的随机接入报告记录方法可以应用于5G NR(5G New Radio)系统、第六代的移动信息技术(the 6th generation mobile communication technology，6G)系统以及后续演进制式中，本申请对此不作限定。如图1A所示，该通信系统至少包括终端设备和接入网设备。
其中，终端设备，包括向用户提供语音和/或数据连通性的设备。例如，可以包括具有无线连接功能的手持式设备或连接到无线调制解调器的处理设备。该终端设备可以经无线接入网(radio access network，RAN)与核心网(例如，5G核心网(5th generation core，5GC))进行通信，可以与RAN交换语音和/ 或数据。该终端设备也可以被称为终端(Terminal)、用户设备(user equipment，UE)、无线终端设备、移动终端(mobile terminal，MT)设备、用户单元(subscriber unit)、用户站(subscriber station)，移动站(mobile station，MS)、移动台(mobile)、远程站(remote station)、接入点(access point，AP)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、或用户装备(user device)等。此外，该终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self-driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。应理解，本申请的实施例对终端设备所采用的具体技术和具体设备形态不做限定。本申请中的终端设备可以是上述任意一种设备或芯片，具体此处不做限定。无论作为设备还是作为芯片，该终端设备都可以作为独立的产品进行制造、销售或者使用。在本实施例以及后续实施例中，以终端设备为例进行介绍。
接入网设备，可以是任意一种具有无线收发功能的设备，可以用于负责空中接口相关的功能，例如，无线链路维护功能、无线资源管理功能、部分移动性管理功能。此外，该接入网设备还可以配置有基带单元(base band unit，BBU)，具备基带信号处理功能。示例性的，接入网设备可以是当前为终端设备提供服务的接入网设备(radio access network，RAN)。目前，接入网设备的一些常见示例为：节点B(NodeB，NB)、演进型节点B(evolved Node B，eNB)、5G新无线(new radio，NR)系统中的下一代节点B(next generation node B，gNB)、6G系统中的节点(例如，xNodeB)、传输接收点(transmission reception point，TRP)、无线网络控制器(radio network controller，RNC)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，家庭演进节点(home evolved NodeB)或家庭节点(home Node B，HNB))等。此外，在云接入网(cloud radio access network，CloudRAN)或开放式接入网(open radio access network，ORAN)等网络结构中，接入网设备可以是包括集中式单元(centralized unit，CU)(也被称为控制单元)和/或分布式单元(distributed unit，DU)的设备。其中，包括CU和DU的RAN设备将NR系统中gNB的协议层拆分开，部分协议层的功能放在CU集中控制，剩下部分或全部协议层的功能分布在DU中，由CU集中控制DU。应理解，本申请实施例中的接入网设备可以是上述任意一种设备或上述设备中的芯片，具体此处不做限定。无论作为设备还是作为芯片，该接入网设备都可以作为独立的产品进行制造、销售或者使用。在本实施例以及后续实施例中，以接入网设备为例进行介绍。
可选的，当接入网设备是由CU和DU构成时，多个DU可以共用一个CU。CU和DU的切分可以按照协议栈切分。例如，如图1B所示，作为一种实现方式，CU部署有协议栈中的无线资源控制(radio Resource Control，RRC)层，分组数据汇聚协议(packet data convergence protocol，PDCP)，以及业务数据适应协议(service data adaptation protocol，SDAP)层；DU部署有协议栈中的无线链路控制(radio link control，RLC)层，媒体介入控制(media access control，MAC)层，以及物理层(physical layer，PHY)。从而，CU具有RRC、PDCP和SDAP的处理能力。DU具有RLC、MAC和PHY的处理能力。可以理解的是，上述功能的切分仅为一个示例，不构成对CU和DU的限定。也就是说，CU和DU之间还可以有其他功能切分的方式，本申请不予赘述。
应注意，CU的功能可以由一个实体来实现也可以由不同的实体实现。例如，如图1C所示，可以将CU的功能中的控制面(CP)和用户面(UP)分离，即将CU划分为CU的控制面(CU-CP)和CU用户面(CU-UP)。例如，CU-CP和CU-UP可以由不同的功能实体来实现，CU-CP和CU-UP可以与DU相耦合，共同完成基站的功能。可选的，CU-CP可以进一步切分为CU-CP1和CU-CP2。其中，CU-CP1包括各种无线资源管理功能，CU-CP2仅包括RRC功能和PDCP-C功能(即控制面信令在PDCP层的基本功能)。一种可能的方式中，CU-CP负责控制面功能，主要包含RRC和PDCP-C，其中，PDCP-C主要负责控制面数据的加解密、完整性保护以及数据传输等。CU-UP负责用户面功能，主要包含SDAP和PDCP-U，其中，SDAP主要负责将核心网的数据进行处理并将数据流(flow)映射到承载。PDCP-U 主要负责数据面的加解密、完整性保护、头压缩、序列号维护以及数据传输等。其中，CU-CP和CU-UP通过E1接口连接。CU-CP代表gNB通过NG接口和核心网连接，通过F1接口控制面(即F1-C)和DU连接。CU-UP通过F1接口用户面(即F1-U)和DU连接。当然还有一种可能的实现是PDCP-C也在CU-UP。CU的控制面CU-CP还包括一种进一步切分的架构，即将现有的CU-CP进一步切分为CU-CP1和CU-CP2。其中，CU-CP1包括各种无线资源管理功能(例如，移动性管理、为终端设备发送的下行RRC消息中各个信息的具体取值等)，CU-CP2仅包括RRC功能(例如，负责生成下行RRC消息和解码上行RRC消息)和PDCP-C功能(即控制面信令在PDCP层的基本功能)。
可选的，该通信系统还可以包括核心网设备。该核心网设备指为终端设备提供业务支持的核心网(core network，CN)中的设备。目前，核心网设备的一些常见示例为：接入和移动性管理功能(access and mobility management function，AMF)实体、会话管理功能(session management function，SMF)实体、用户面功能(user plane function，UPF)实体等等，此处不一一列举。其中，AMF实体可以负责终端设备的接入管理和移动性管理；SMF实体可以负责会话管理，如用户的会话建立等；UPF实体可以是用户面的功能实体，主要负责连接外部网络。需要说明的是，本申请中实体也可以称为网元或功能实体。例如，AMF实体也可以称为AMF网元或AMF功能实体；又例如，SMF实体也可以称为SMF网元或SMF功能实体等。应注意，本申请中的核心网设备至少包括AMF实体。
具体地，本申请提出的随机接入报告记录方法可以应用于基于随机接入的SDT(random access-based SDT，RA-SDT)中。例如，基于竞争的四步随机接入(4-stepCBRA)或基于竞争的两步随机接入(2-stepCBRA)。
下面将结合图2对本申请的随机接入报告记录方法的主要流程进行介绍，在该方法中，终端设备支持在非激活态执行SDT，网络设备和终端设备主要执行如下步骤：
步骤201，网络设备向终端设备发送配置信息。
相应地，终端设备接收上述配置信息。
示例性的，网络设备发送系统消息，终端设备接收系统消息获取上述配置信息。示例性的，系统消息可以是系统信息块1(system information block 1，SIB1)。例如，网络设备在SIB1中包括前述配置信息，并向终端设备所在小区广播SIB1，而终端设备接收SIB1并获取到前述配置信息。
其中，配置信息用于为终端设备指示用于进行随机接入的资源。示例性的，配置信息包括用于随机接入特性的随机接入资源集合，随机接入特性包括以下至少一项：降低能力的终端设备特性、短数据包传输SDT特性、覆盖增强特性、以及网络切片特性。示例性的，该随机接入资源集合包括用于SDT随机接入特性的随机接入资源(也可称为SDT特性的随机接入资源，或者SDT相关的随机接入资源)。网络设备可以通过配置信息为终端设备指示适用于一种或多种随机接入特性的随机接入资源。
前述适用于一种或多种随机接入特性的随机接入资源，其中，随机接入特性(简称特性)包括降低能力(reduced capability，RedCap)的终端设备特性，短数据包传输(small data transmission，SDT)特性，覆盖增强(coverage enhancemens，CovEnh)特性，以及网络切片(RAN Slicing)特性的一种或者多种。可选的，前述不同的随机接入特性可以组成特性组合。例如，RedCap特性和SDT特性可以构成一种特性组合，可以表示为特性组合{RedCap+SDT}。又例如，RedCap特性和CovEnh特性可以构成一种特性组合，可以表示为特性组合{RedCap+CovEnh}。又例如，SDT特性、CovEnh特性和RedCap特性这三种特性可以构成一种特性组合，可以表示为特性组合{SDT+RedCap+CovEnh}。实际应用中还有多种特性组合的示例，此处不再一一列举。
示例性的，配置信息指示的随机接入资源集合包括用于SDT随机接入特性的随机接入资源。如果随机接入资源仅适用于SDT特性，该随机接入资源仅适用于SDT特性不适用于其他随机接入特性；如果适用于包含SDT特性的多种随机接入特性，该随机接入资源适用于随机特性组合且该随机特性组合包括SDT特性。例如，随机接入资源集合包括指示SDT特性的随机接入资源，和/或，指示RedCap特性和SDT特性的随机接入资源。又例如，随机接入资源集合包括指示CovEnh特性和SDT特性的随机接入资源。
可选的，配置信息还包括至少一种随机接入特性的优先级信息，随机接入特性的优先级信息用于终 端设备根据随机接入特性的优先级信息从随机接入资源集合中为随机接入过程确定可用的随机接入资源，该随机接入资源适用于至少包括SDT特性在内的一种或者多种随机接入特性的全部或者部分随机接入特性。示例性的，网络设备为如下一种或者多种特性配置了随机接入资源：RedCap+SDT，RedCap，RedCap+CovEnh，SDT+CovEnh，slice group1+SDT。示例性的，随机接入特性的优先级信息为：RedCap>Slice group1>SDT>CovEnh，先选择包含Redcap指示的随机接入资源，在选择到的资源中进一步选择包含slicegroup1指示的随机接入资源，在选择到的资源中进一步选择包含SDT指示的随机接入资源，在选择到的资源中进一步选择包含CovEnh指示的随机接入资源。
可选的，适用于随机接入特性的随机接入资源结合RACH partition包括2-step RACH partition配置信息和/或4-step RACH partition配置信息。其中，2-step RACH partition配置信息用于指示基于2-step的随机接入资源，4-stepRACH partition配置信息用于配置基于4-step的随机接入资源。步骤202，包括SDT在内的一种或者多种随机接入特性触发了随机接入过程，终端设备根据配置信息发起随机接入过程。
在一种可能的实施方式中，当至少包括SDT特性在内的一种或者多种随机接入特性满足随机接入过程的触发条件(即触发随机接入过程)时，终端设备根据配置信息选择随机接入资源并发起随机接入过程。
本示例中，当随机接入是由RedCap特性、SDT特性和CovEnh特性的特性组合触发的，并且，随机接入特性的优先级信息为：RedCap>Slice group1>SDT>CovEnh，则网络设备为如下一种或者多种特性配置了随机接入资源：RedCap+SDT，RedCap，RedCap+CovEnh，SDT+CovEnh，slice group1+SDT，由于随机接入资源组合中没有RedCap+SDT+CovEnh特性组合对应的随机接入资源，因此终端设备需要根据随机接入特性优先级信息从随机接入资源组合中选择出随机接入资源。示例性的，基于随机接入特性的优先级信息RedCap>SDT>CovEnh，首先终端设备选出适用于包括RedCap特性在内的一种或者多种随机接入特性的一个或者多个随机接入资源，在适用于包含RedCap特性在内的一种或者多种随机接入特性的一个或者多个随机接入资源中该终端设备确定适用于SDT特性的一个或者多个随机接入资源，进一步该终端设备确定适用CovEnh特性的一个或者多个随机接入资源，根据上述随机接入资源选择过程终端设备在网络设备配置的随机接入资源集合汇总选择到了指示RedCap+SDT特性组合的随机接入资源。
终端设备按照选择到的随机接入资源，为RedCap和SDT特性发起了随机接入过程。该随机接入过程包括基于随机接入的短数据包传输。示例性的，若随机接入资源适用于至少包括SDT特性的一种或多种随机接入特性，则所述随机接入过程至少包括基于随机接入的短数据包传输。示例性的，若终端设备选择到的随机接入资源适用于至少一种或多种随机接入特性，该一种或多种随机接入特性不包括SDT特性，则所述随机接入过程不包括基于随机接入的短数据包传输。
应理解，该终端设备至少满足SDT随机接入的触发条件。其中，SDT随机接入的触发条件包括如下几项：
(1)待传输的数据量小于RRC释放消息(即RRCRelease消息)中设定的数据量阈值；(2)下行路损参考信号的RSRP高于RRCRelease消息中设定的RSRP阈值；(3)RRCRelease消息中不携带配置授权(configured grant，CG)配置或者CG资源无效。
应理解，终端设备发起的随机接入过程可能是基于两步的SDT随机接入过程(即2-step SDT RACH)，也可能是基于四步的SDT随机接入过程(即4-step SDT RACH)。具体地，终端设备基于配置信息的内容确定是发起2-step SDT RACH，还是发起4-step SDT RACH。示例性的，若终端设备所选部分带宽(band width part，BWP)上仅配置了基于4-stepSDT RACH的随机接入资源，则终端设备选择4-step随机接入过程；如果仅配置了2-step SDT RACH的随机接入资源，则终端设备选择2-step随机接入过程；如果同时配置了4-step SDT RACH的随机接入资源和2-step SDT RACH的随机接入资源，则终端设备基于下行路损参考信号的参考信号接收功率(reference signal received power，RSRP)和网络侧配置的阈值确定选择哪种随机接入方式。例如，当RSRP高于阈值，则选择2-step随机接入过程；当低于阈值，则选择4-step随机接入过程。
应注意，终端设备发起的SDT随机接入过程可能涉及回落(fallback)(也被称为回退)。示例性的， 终端设备发起2-step SDT RACH，在出现随机接入失败时，终端设备回落到4-step SDT RACH。例如，终端设备接收网络设备发送的用于指示回落的指示信息，则终端设备在收到该指示信息后确定回落到4-stepSDT RACH。又例如，终端设备确定2-stepSDT RACH失败(例如，达到最大前导(preamble)传输次数，或者，收到的msgB解决失败等)，终端设备确定回落到4-stepSDT RACH。具体此处不做限定。
步骤203，终端设备记录第一随机接入报告，该第一随机接入报告包括与该随机接入过程相关的信息。
具体地，终端设备成功执行了随机接入过程之后，终端设备将记录与该SDT相关的随机接入过程相关的第一随机接入报告。
一种可能的方式，该随机接入过程适用于基于随机接入的SDT特性，该第一随机接入报告包括与该SDT随机接入过程相关的信息。一种可能的方式，该随机接入过程适用于不包含SDT特性的一种或者多种随机接入特性，该第一随机接入报告包括与该随机接入过程相关的信息。示例性的，若随机接入资源适用于至少包括SDT特性的一种或多种随机接入特性，则所述随机接入过程至少包括基于随机接入的短数据包传输，进而所述终端设备记录第一随机接入报告，所述第一随机接入报告包括与所述基于随机接入的短数据包传输过程相关的信息。示例性的，若所述随机接入资源适用于至少一种或多种随机接入特性，该一种或多种随机接入特性不包括SDT特性，则所述随机接入过程不包括基于随机接入的短数据包传输，进而所述终端设备记录第一随机接入报告，所述第一随机接入报告包括与所述随机接入过程相关的信息。
需要说明的是，终端设备成功执行了随机接入过程，可以是终端设备成功执行了2-step RACH；也可以是终端设备成功执行了4-step RACH；还可以是终端设备执行2-step RACH失败，但终端设备回落并成功执行4-step RACH。具体此处不做限定。示例性的，若终端设备成功执行了2-step RACH，则第一随机接入报告包括2-step RACH过程相关的信息；若终端设备成功执行了4-step RACH，则第一随机接入报告包括4-step RACH过程相关的信息；若终端设备从2-step RACH回落到4-step RACH并成功执行4-step RACH，则第一随机接入报告包括2-step RACH过程和4-step RACH过程相关的信息。
在一种可能的实施方式中，当终端设备已记录的历史第一随机接入报告的数量小于第一阈值时，终端设备记录第一随机接入报告。其中，第一阈值为终端设备记录第一随机接入报告的数量的上限，也可以理解为，终端设备记录第一随机接入报告的最大个数。历史第一随机接入报告指终端设备在当前时刻之前已经生成或记录的第一随机接入报告。
示例性的，终端设备每生成一个第一随机接入报告，则终端设备会进行一次计数操作以记录该终端设备生成的第一随机接入报告的数量。此外，每当该终端设备成功执行了SDT随机接入过程之后，该终端设备将基于第一阈值决策是否记录本次SDT随机接入相关的信息以生成本次SDT随机接入过程的第一随机接入报告。当终端设备已记录的历史第一随机接入报告的数量小于第一阈值时，终端设备才记录本次SDT随机接入过程的第一随机接入报告；当终端设备已记录的历史第一随机接入报告的数量大于或等于第一阈值时，终端设备不记录本次SDT随机接入过程的第一随机接入报告。
本实施例中，终端设备可以通过如下任意一种实施方式获得第一阈值：
在一种可能的实施方式中，第一阈值是由网络设备(例如，接入网设备)配置的。例如，接入网设备向终端设备发送第一阈值，相应地；终端设备从接入网设备接收第一阈值。示例性的，网络设备可以通过公共的RRC消息或者专用的RRC消息向终端设备发送第一阈值。其中，公共的RRC消息可以是系统消息，例如，SIB1；专用的RRC消息可以是RRC重配消息等。
在另一种可能的实施方式中，第一阈值是协议预定义的。例如，协议预定义一个新的参数(例如，maxRAFeatureReport，maxRASDTReport)，该参数为终端设备记录第一随机接入报告的数量的上限。
在另一种可能的实施方式中，第一阈值来自网络管理设备(例如，操作管理维护(operation administration and maintenance，OAM)设备)。例如，OAM设备向终端设备发送第一阈值。
本实施例中，与随机接入过程相关的信息包括以下一项或多项：
第一指示信息，第一指示信息用于指示触发随机接入过程的至少一种随机接入特性，至少一种随机接入特性包括SDT特性。也可以理解为，仅有SDT特性触发了随机接入过程，或者是，包含SDT特性 的随机接入特性组合触发了随机接入过程。可选的，第一指示信息可以仅指示SDT特性，也可以指示包含SDT特性的随机接入特性组合。
至少一种随机接入特性的优先级信息。可选的，随机接入特性优先级信息包括SDT特性的优先级信息。关于随机接入特性的优先级信息的解释请参阅前文步骤201，此处不予赘述。
第二指示信息，第二指示信息用于指示终端设备在随机接入资源集合中选择的可用的随机接入资源所适用(对应)的随机接入特性。所述随机接入资源适用于至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性，也可以是随机接入资源不指定适用于特定的一个或者多个随机接入特性。可选的，至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性包括SDT特性，至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性也可以不包括SDT特性。可选的，第二指示信息可以仅指示SDT特性，也可以指示包含SDT特性的随机接入特性组合，也可以不指示任何随机接入特性。例如，终端设备需要触发SDT随机接入过程，则终端设备选择的随机接入资源适用于包括SDT特性的一种或者多种随机接入特性，进而该第二指示信息至少包括SDT特性。
可选的，与随机接入过程相关的信息还包括以下一项或者多项：
随机接入的小区标识信息，例如，终端设备接入的小区的物理小区标识(physical cell identifier，PCI)。
随机接入的频点信息，用于指示终端设备进行随机接入的频点。
时频域配置信息，用于指示进行随机接入的时频资源。其中，时频域配置信息用来确定发送随机接入前导码的时频资源。可选的，时频域配置信息还包括子载波间隔等信息。
信号质量测量信息，用于指示终端设备测量的信号的质量。例如，信号质量测量信息包括终端设备测量的信号的RSRP值等。
信号质量测量信息满足质量门限的指示信息，用于指示测量的RSRP值是否达到质量门限。
进行随机接入尝试的波束信息，例如，波束号、在波束上发送的前导(preamble)数量以及冲突检测指示等。
两步随机接入待传输数据量，以及，两步随机接入的物理上行共享信道(physical uplink shared channel，PUSCH)配置信息。
具体地，终端设备可以采用如下任意一种实施方式基于与随机接入过程相关的信息生成第一随机接入报告，第一随机接入报告与SDT有关：
在一种可能的实施方式中，包括SDT的至少一种随机接入特性触发了随机接入过程，终端设备发起的随机接入过程适用于SDT，即本次随机接入过程为SDT随机接入过程，终端设备记录第一随机接入报告。
在另一种可能的实施方式中，包括SDT的至少一种随机接入特性触发了随机接入过程，终端设备发起的随机接入过程不适用于SDT，即本次随机接入过程为不包括SDT的至少一种随机接入特性的随机接入过程，终端设备记录第一随机接入报告。
在一种可能的实施方式中，第一随机接入报告为终端设备新增的一种随机接入报告。该第一随机接入报告携带的信元的种类相比于现有技术中的随机接入报告携带的信元的种类不完全相同，除了携带现有技术中的随机接入报告信元外，还包括与SDT特性相关的信元。例如，第一随机接入报告携带现有技术中的随机接入报告信元时，考虑精简部分信元，精简了随机接入目的(raPurpose)的信元。又例如，第一随机接入报告相比于现有技术中的随机接入报告增加了SDT特性相关的指示。
在另一种可能的实施方式中，终端设备基于现有技术中的随机接入报告增加与SDT特性相关的信元所确定的随机接入报告为第一随机接入报告。该第一随机接入报告除了携带现有技术中的随机接入报告信元外，还包括与SDT特性相关的信元。
具体地，第一随机接入报告在传统随机接入报告中新增配置如下信元，也可以理解为，终端设备通过在传统随机接入报告中配置如下信元，以指示SDT是否触发以及使用了本次随机接入过程。
在一种可能的示例中，在随机接入目的(raPurpose)信元中指示触发本次随机接入过程的随机接入特性信息，指示的随机接入特性至少包括SDT特性，本次随机接入过程可以是仅SDT触发，也可以是 包括SDT的随机接入特性组合触发的。示例性的，网络设备在收到随机接入报告后，能够基于随机接入目的信元指示的SDT信息确定收到的随机接入报告为第一随机接入报告，第一随机接入报告与SDT相关。
在另一种可能的示例中，可以根据是否满足如下条件来指示该随机接入报告是否为第一随机接入报告，也可以理解为，根据是否满足如下条件来指示SDT是否触发本次随机接入过程。其中，该条件为RSRP满足基于随机接入的SDT相关门限，并且，待传输数据量满足基于随机接入的SDT相关门限。示例性的，当随机接入报告1中的RSRP大于基于随机接入的SDT相关门限且小于或者等于基于配置授权的SDT相关门限，并且，随机接入报告1中的待传输数据量小于基于随机接入的SDT相关门限时，该随机接入报告1为第一随机接入报告；当随机接入报告1中的RSRP不满足基于随机接入的SDT相关门限，或者，随机接入报告1中的待传输数据量不满足基于随机接入的SDT相关门限时，该随机接入报告1与SDT无关，随机接入报告1不是第一随机接入报告。示例性的，网络设备在收到随机接入报告后，能够基于随机接入报告1中的RSRP值、随机接入报告1中的待传输数据量以及前述条件确定收到的随机接入报告是否与SDT相关，来确定是否为第一随机接入报告。
在另一种可能的示例中，在第一随机接入报告中指示随机接入特性优先级信息。
此外，还应注意，前述与随机接入过程相关的信息的取值是基于随机接入过程测量值、随机接入过程中使用的参数值来确定。其中，随机接入过程中使用的参数值包括随机接入特性对应的随机接入资源特定参数(即随机接入特性相关的随机接入过程特有的参数)、legacy RACH参数(即传统技术中的基本RACH参数)，以及，二者通用类参数(即Per RACH配置参数)。
可选的，随机接入特性的随机接入过程特有的参数包括前文介绍的时频域配置信息、PUSCH配置信息。此外，随机接入特性的随机接入过程特有的参数还包括待传输数据量门限参数、SSB选择相关门限参数(例如，4-step RSRP质量门限(即rsrp-ThresholdSSB)以及2-step RSRP质量门限(即msgA-RSRP-ThresholdSSB)等)。
可选的，Per RACH配置参数包括msgA最大传输次数门限、RACH最大传输次数门限等。
具体地，终端设备基于配置信息中的用于随机接入特性的随机接入资源信息(例如，additionalRACH-ConfigCommon信元)确定第一随机接入报告中随机接入特性相关的随机接入过程特定参数的取值。当该特定参数的参数值在配置信息中的用于随机接入特性的随机接入资源信息中缺失时，终端设备基于4步的随机接入公共配置信元(RACH-ConfigCommon(4-step))和/或2步的随机接入公共配置信元(msgA-ConfigCommon(2-step))确定该随机接入过程特定参数的取值。
本实施例中，终端设备能够在SDT触发随机接入过程后，记录与SDT相关的第一随机接入报告。进一步的，网络侧基于第一随机接入报告优化随机接入特性的随机接入配置，随机接入配置可以是适用于至少包括SDT特性的随机接入资源，也可以是包括SDT特性的随机接入特性优先级，从而提升终端设备的SDT随机接入过程的成功率。
下面将结合图3对本申请的随机接入报告记录方法的进行进一步介绍，在该方法中，终端设备支持在非激活态执行SDT，并且，终端设备可能涉及与多个网络设备的信令交互。为便于介绍，以多个网络设备包括第一网络设备和第二网络设备为例。第一网络设备、第二网络设备和终端设备主要执行如下步骤：
步骤301，第一网络设备向终端设备发送配置信息。
相应地，终端设备接收上述配置信息。
示例性的，第一网络设备广播配置信息，终端设备接收来自第一网络设备的配置信息。
其中，关于配置信息的解释请参阅前文步骤201中的相关描述，此处不予赘述。
步骤302，终端设备向网络设备发送第三指示信息。
相应地，网络设备从终端设备接收第三指示信息。
步骤302为可选的步骤。
其中，第三指示信息用于指示终端设备是否支持记录与SDT相关的随机接入报告，或者指示终端 设备支持记录SDT相关的随机接入报告。
可选的，该第三指示信息可以携带于终端设备的能力信息中。示例性的，该第三指示信息为终端设备的无线能力信息(UE Radio Capability信息)中新增的一个能力位。例如，若该能力位的取值为“0”，则表示终端设备不支持记录与SDT相关的随机接入报告；若该能力位的取值为“1”，则表示终端设备支持记录与SDT相关的随机接入报告。本实施例中，以第三指示信息指示终端设备支持记录与SDT相关的随机接入报告为例进行介绍。
示例性的，终端设备可以在首次附着(attach)或跟踪区更新(tracking area update，TAU)时向第一网络设备发送携带第三指示信息的UE Radio Capability信息；相应地，第一网络设备能够基于收到的UE Radio Capability信息获得第三指示信息，进而基于该第三指示信息确定该终端设备支持记录与SDT相关的随机接入报告。
示例性的，第一网络设备可以向连接态的终端设备发送能力询问(UE Capability Enquiry)消息，相应地，终端设备向第一网络设备发送携带第三指示信息。
由于，终端设备能够向第一网络设备发送第三指示信息，以使得第一网络设备基于第三指示信息确定该终端设备支持记录与SDT相关的随机接入报告，进而有利于第一网络设备决策是否指示该终端设备记录与SDT相关的随机接入报告。
步骤303，第一网络设备向终端设备发送第四指示信息；相应地，终端设备接收来自第一网络设备的第四指示信息。
步骤303为可选的步骤。
其中，第四指示信息用于指示终端设备是否记录与SDT相关的随机接入报告，或者指示终端设备记录与SDT相关的随机接入报告。在一种可能的示例中，第四指示信息指示终端设备记录与SDT相关的随机接入报告。在另一种可能的示例中，第四指示信息指示终端设备不记录与SDT相关的随机接入报告。
示例性的，第一网络设备可以通过公共的RRC消息或者专用的RRC消息向终端设备发送第四指示信息。其中，公共的RRC消息可以是系统消息，例如，SIB1；专用的RRC消息可以是RRC重配消息等。
其中，第四指示信息包括第一阈值，第一阈值为终端设备记录第一随机接入报告的数量的上限，也可以理解为，终端设备记录第一随机接入报告的最大个数。关于第一阈值的解释可以参阅前文步骤203中的相关介绍，此处不予赘述。
需要说明的是，当第四指示信息包括第一阈值时，可以采用第一阈值的数值指示终端设备是否记录与SDT相关的随机接入报告。例如，当第一阈值的取值为0，表示指示终端设备不记录与SDT相关的随机接入报告；当第一阈值的取值为大于0的整数，表示指示终端设备记录与SDT相关的随机接入报告，并且，该大于0的整数即为终端设备记录第一随机接入报告的数量的上限。
可选的，若第一网络设备是由CU和DU构成，第一网络设备的CU为CU的控制面(CU-CP)与CU用户面(CU-UP)分离的架构，并且，CU-CP可以进一步拆分为CU-CP1和CU-CP2，则CU-CP1确定第四指示信息和/或第一阈值。然后，由CU-CP1向CU-CP2发送第四指示信息和/或第一阈值。CU-CP2通过DU向终端设备发送第四指示信息和/或第一阈值。例如，DU可以通过公共的RRC消息或者专用的RRC消息向终端设备发送第四指示信息。
由于，终端设备能够基于收到第四指示信息在第一网络设备的指示下，记录与SDT相关的随机接入报告，或者，不记录与SDT相关的随机接入报告。因此，有利于第一网络设备灵活控制终端设备是否开启记录与SDT相关的随机接入报告的功能。进一步地，由于，终端设备能够获得记录第一随机接入报告的数量的上限(即第一阈值)，在已记录的历史第一随机接入报告的数量小于第一阈值时，才触发记录第一随机接入报告。有利于控制终端设备内部存储的第一随机接入报告的数量。
步骤304，终端设备根据配置信息发起随机接入过程。
可选的，该随机接入过程为基于随机接入的短数据包传输。示例性的，若包括SDT的至少一种随机接入特性触发随机接入过程，终端根据配置信息选择到的随机接入资源适用于至少包括SDT特性的 一种或多种随机接入特性，则所述随机接入过程至少包括基于随机接入的短数据包传输。示例性的，若随机接入资源适用于至少一种或多种随机接入特性，该一种或多种随机接入特性不包括SDT特性，则所述随机接入过程不包括基于随机接入的短数据包传输。
步骤304与图2对应实施例中的步骤202类似，具体请参阅前文步骤202中的相关描述，此处不予赘述。
步骤305，当终端设备已记录的历史第一随机接入报告的数量小于第一阈值时，终端设备记录第一随机接入报告，第一随机接入报告包括与该随机接入过程相关的信息。
其中，第一随机接入报告是与SDT相关的随机接入报告。关于第一随机接入报告的解释请参阅前文步骤203中的相关介绍，此处不予赘述。
当该终端设备成功执行了SDT相关的随机接入过程之后，该终端设备将基于第一阈值决策是否记录本次与SDT相关的随机接入过程信息以生成第一随机接入报告。当终端设备已记录的历史第一随机接入报告的数量小于第一阈值时，终端设备才记录本次与SDT相关的第一随机接入报告；当终端设备已记录的历史第一随机接入报告的数量大于或等于第一阈值时，终端设备不再记录与SDT相关的第一随机接入报告。
需要说明的是，若第一网络设备和终端设备执行了步骤303，则本步骤中的第一阈值可以是来自于第四指示信息。若第一网络设备和终端设备未执行步骤303，则本步骤中的第一阈值可以是协议预定义的，也可以是来自网络管理设备(例如，OAM设备)，具体请参阅前文步骤203中关于第一阈值的描述，此处不予赘述。
步骤306，终端设备向第二网络设备发送第五指示信息。
相应地，第二网络设备从终端设备接收第五指示信息。
步骤306为可选的步骤。
其中，第二网络设备可以是第一网络设备，也可以是与第一网络设备不同的其他网络设备。第五指示信息用于指示第一随机接入报告的可获得性，也可以理解为，该第五指示信息用于指示终端设备存储有第一随机接入报告。当第二网络设备收到第五指示信息之后，该第二网络设备可以执行随机接入报告检索，即第二网络设备向终端设备指示上报随机接入报告。具体地，请参阅后文步骤307。
可选的，该第五指示信息还包括随机接入报告的类型信息。例如，该第五指示信息能够指示终端设备存储的随机接入报告是传统的随机接入报告(例如，legacy RACH的报告)，还是某一种或者多种随机接入特性相关的随机接入报告(例如，包含SDT特性的随机接入报告)，该一种或者多种随机接入特性可以是触发随机接入的一种或者多种随机接入特性，也可以是发起(使用)随机过程的一种或者多种随机接入特性。
示例性的，终端设备可以在RRC消息中提供前述第五指示信息。其中，RRC消息可以是RRC建立完成消息、RRC重配置完成消息、RRC重建完成消息以及RRC恢复完成消息的任意一种或多种。
需要说明的是，当终端设备不执行步骤306时，第二网络设备也可以获得第五指示信息。在一种可能的实施方式中，第二网络设备是由CU和DU构成，DU能够在随机接入流程完成后确定第五指示信息，并且，能够通过F1接口向CU发送第五指示信息。示例性的，在CU-DU架构下，当DU观测到RACH事件完成后，DU能够通过F1接口向CU指示RACH报告的可获得性及随机接入报告的类型，即第五指示信息。进而，CU通过F1口接收DU发送的第五指示信息。
由于，终端设备能够向第二网络设备发送第五指示信息以指示终端设备是否有可提供的第一随机接入报告。有利于第二网络设备在收到第五指示信息之后，决策是否从终端设备获取第一随机接入报告，有利于网络侧及时从终端设备获取第一随机接入报告。
当第二网络设备确定该终端设备存储有该第二网络设备需要的随机接入报告(例如，第一随机接入报告)时，该第二网络设备将依次执行步骤307和步骤308。
步骤307，第二网络设备向终端设备发送第六指示信息。
相应地，终端设备接收来自第二网络设备的第六指示信息。
其中，第六指示信息用于指示终端设备上报第一随机接入报告。
当终端设备收到第六指示信息之后，该终端设备将向第二网络设备发送第一随机接入报告。
步骤308，终端设备向第二网络设备发送第一随机接入报告。
相应地，第二网络设备从终端设备接收第一随机接入报告。
步骤309，第二网络设备向第一网络设备转发第一随机接入报告。
相应地，第一网络设备从第二网络设备接收第一随机接入报告。
步骤309为可选的步骤。
具体地，当第二网络设备与第一网络设备是不同的网络设备时，第二网络设备可以发送上述报告(即第一随机接入报告)的部分或全部信息给第一网络设备。可选的，第二网络设备还可以向第一网络设备发送报告的类型信息。报告的类型可以为5G(例如，NR或者gNB)，连接5G核心网的4G(例如，eLTE或者ng-eNB)，4G(例如，LTE或者eNB)或者其他系统或制式的类型。
示例性的，若第二网络设备和第一网络设备间存在可以直接进行通信的接口，则第二网络设备通过基站与基站间的接口(例如，X2接口或Xn接口)向第一网络设备发送报告的部分或全部信息。例如，第二网络设备可以通过失败指示(FAILURE INDICATION、RLF INDICATION)消息、切换报告(HANDOVER REPORT)消息、接入和移动指示(ACCESS AND MOBILITY INDICATION)消息或其它消息向第一网络设备发送第一随机接入报告的部分或全部信息。
示例性的，若第二网络设备和第一网络设备间无法直接进行通信，则第二网络设备可以通过核心网设备向第一网络设备发送第一随机接入报告的部分或全部信息。例如，第二网络设备通过基站与核心网设备间的接口(例如，S1接口或NG接口)向核心网设备发送第一随机接入报告的部分或全部信息，由核心网设备向第一网络设备转发从第二网络设备接收到的信息。例如，第二网络设备可以通过S1接口或NG接口上的以下消息的至少一种向第一网络设备发送第一随机接入报告的部分或全部信息：上行RAN配置传输(UPLINK RAN CONFIGURATION TRANSFER)消息、下行RAN配置传输(DOWNLIKN RAN CONFIGURATION TRANSFER)消息、基站配置传输(eNB CONFIGURATION TRANSFER)消息、核心网设备配置传输(MME CONFIGURATION TRANSFER)消息或其它消息。
本实施例中，由于，至少包括SDT的一种或者多种随机接入特性触发了随机接入过程，终端设备能够基于第一网络设备的配置信息获取第一网络设备为终端设备配置的适用随机接入特性的随机接入资源发起随机接入过程，并且，终端设备能够在收到第一网络设备下发的指示记录与SDT相关的随机接入报告的第四指示信息的情况下，记录与SDT相关的随机接入过程对应的第一随机接入报告。因此，提出了记录与SDT相关的随机接入过程的第一随机接入报告的机制，有利于终端设备向网络侧反馈第一随机接入报告，进而使得网络侧基于第一随机接入报告优化包括SDT在内的一种或者多种随机接入特性对应的随机接入配置，可以是随机接入资源配置，也可以是随机接入特性优先级配置，使触发随机接入过程的包括SDT的至少一种随机接入特性能成功发起随机接入过程，从而提升终端设备的SDT随机接入过程的成功率。
如图4所示，为本实施例提供的一种通信装置40的结构示意图。应当理解的是，前述图2或图3对应的方法实施例中的终端设备可以基于本实施例中图4所示的通信装置40的结构。
通信装置40包括至少一个处理器401、至少一个存储器402和至少一个收发器403。其中，处理器401、存储器402和收发器403相连。可选地，通信装置40还可以包括输入设备405、输出设备406和一个或多个天线404。其中，天线404与收发器403相连，输入设备405、输出设备406与处理器401相连。
本实施例中，存储器402主要用于存储软件程序和数据。存储器402可以是独立存在，与处理器401相连。可选地，存储器402可以和处理器401集成于一体，例如集成于一个或多个芯片之内。其中，存储器402能够存储执行本申请实施例的技术方案的程序代码，并由处理器401来控制执行，被执行的各类计算机程序代码也可被视为是处理器401的驱动程序。应当理解的是，本实施例中的图4仅示出了一个存储器和一个处理器，但是，在实际应用中，通信装置40可以存在多个处理器或多个存储器，具体此处不做限定。此外，存储器402也可以称为存储介质或者存储设备等。存储器402可以为与处理器处 于同一芯片上的存储元件(即片内存储元件)，或者为独立的存储元件，本申请实施例对此不做限定。
本实施例中，收发器403可以用于支持通信装置40与接入网设备之间射频信号的接收或者发送，收发器403可以与天线404相连。收发器403包括发射机Tx和接收机Rx。具体地，一个或多个天线404可以接收射频信号，收发器403的接收机Rx用于从天线404接收所述射频信号，并将射频信号转换为数字基带信号或数字中频信号，并将数字基带信号或数字中频信号提供给所述处理器401，以便处理器401对数字基带信号或数字中频信号做进一步的处理，例如解调处理和译码处理。此外，收发器403中的发射机Tx还用于从处理器401接收经过调制的数字基带信号或数字中频信号，并将经过调制的数字基带信号或数字中频信号转换为射频信号，并通过一个或多个天线404发送所述射频信号。具体地，接收机Rx可以选择性地对射频信号进行一级或多级下混频处理和模数转换处理以得到数字基带信号或数字中频信号，前述下混频处理和模数转换处理的先后顺序是可调整的。发射机Tx可以选择性地对经过调制的数字基带信号或数字中频信号时进行一级或多级上混频处理和数模转换处理以得到射频信号，所述上混频处理和数模转换处理的先后顺序是可调整的。数字基带信号和数字中频信号可以统称为数字信号。
应当理解的是，前述收发器403也可以称为收发单元、收发机、收发装置等。可选地，可以将收发单元中用于实现接收功能的器件视为接收单元，将收发单元中用于实现发送功能的器件视为发送单元，即收发单元包括接收单元和发送单元，接收单元也可以称为接收机、输入口、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
处理器401可以是基带处理器，也可以是中央处理单元(central processing unit，CPU)，基带处理器和CPU可以集成在一起或者分开。处理器401可以用于为终端设备实现各种功能，例如用于对通信协议以及通信数据进行处理，或者用于对整个终端设备进行控制，执行软件程序，处理软件程序的数据；或者用于协助完成计算处理任务，例如对图形图像处理或者音频处理等等；或者处理器401用于实现上述功能中的一种或者多种。
此外，输出设备406和处理器401通信，可以以多种方式来显示信息，具体从此处不做限定。
在一种设计中，通信装置40用于执行前述图2或图3对应实施例中终端设备的方法。通信装置40中的收发器403用于接收来自网络设备的配置信息，配置信息包括用于随机接入特性的随机接入资源集合，随机接入资源集合包括用于短数据包传输SDT随机接入特性的随机接入资源；处理器401用于当至少包括SDT的一种或者多种随机接入特性满足随机接入的触发条件时，根据配置信息发起随机接入过程；以及，记录第一随机接入报告，第一随机接入报告包括与随机接入过程相关的信息。可选的，随机接入过程至少包括基于随机接入的短数据包传输。可选的，随机接入特性包括以下至少一项：降低能力的终端设备特性、短数据包传输SDT特性、覆盖增强特性以及网络切片特性。
可选的，第一随机接入报告中与随机接入过程相关的信息包括以下一项或多项：
第一指示信息，第一指示信息用于指示触发随机接入过程的至少一种随机接入特性，至少一种随机接入特性包括SDT特性；
随机接入特性的优先级信息；
第二指示信息，第二指示信息用于指示终端设备确定的随机接入资源所适用(对应)的随机接入特性。可选的，随机接入资源适用于至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性。
在一种可能的实施方式中，处理器401，还用于基于随机接入资源集合和随机接入特性的优先级信息为随机接入过程确定随机接入资源，随机接入资源适用于至少包括SDT在内的一种或者多种随机接入特性。
在一种可能的实施方式中，收发器403，还用于向网络设备发送第三指示信息，第三指示信息用于指示终端设备是否支持记录与SDT相关的随机接入报告。
在一种可能的实施方式中，收发器403，还用于接收来自网络设备的第四指示信息，第四指示信息用于指示终端设备是否记录与SDT相关的随机接入报告。
在一种可能的实施方式中，第四指示信息包括第一阈值，第一阈值为终端设备记录第一随机接入报 告的数量的上限。处理器401，具体用于当已记录的历史第一随机接入报告的数量小于第一阈值时，记录第一随机接入报告。
在一种可能的实施方式中，收发器403，还用于向网络设备发送第五指示信息，第五指示信息用于指示第一随机接入报告的可获得性。
在一种可能的实施方式中，收发器403，还用于接收来自网络设备的第六指示信息，第六指示信息用于指示终端设备上报第一随机接入报告；以及，向网络设备发送第一随机接入报告。
需要说明的是，本实施例的具体实施方式和有益效果可参考上述实施例中终端设备的方法，此处不再赘述。
如图5所示，为本实施例提供的另一种通信装置50的结构示意图。应当理解的是，前述图2或图3对应的方法实施例中的网络设备可以基于本实施例中图5所示的通信装置50的结构。
通信装置50包括至少一个处理器501、至少一个存储器502、至少一个收发器503、至少一个网络接口505和一个或多个天线504。处理器501、存储器502、收发器503和网络接口505通过连接装置相连，天线504与收发器503相连。其中，前述连接装置可包括各类接口、传输线或总线等，本实施例对此不做限定。
其中，存储器502主要用于存储软件程序和数据。存储器502可以是独立存在，与处理器501相连。可选地，存储器502可以和处理器501集成于一体，例如集成于一个或多个芯片之内。其中，存储器502能够存储执行本申请实施例的技术方案的程序代码，并由处理器501来控制执行，被执行的各类计算机程序代码也可被视为是处理器501的驱动程序。应当理解的是，本实施例中的图5仅示出了一个存储器和一个处理器，但是，在实际应用中，通信装置50可以存在多个处理器或多个存储器，具体此处不做限定。此外，存储器502也可以称为存储介质或者存储设备等。存储器502可以为与处理器处于同一芯片上的存储元件(即片内存储元件)，或者为独立的存储元件，本申请实施例对此不做限定。
本实施例中，收发器503可以用于支持通信装置50与终端设备之间射频信号的接收或者发送，收发器503可以与天线504相连。收发器503包括发射机Tx和接收机Rx。具体地，一个或多个天线504可以接收射频信号，收发器503的接收机Rx用于从天线504接收所述射频信号，并将射频信号转换为数字基带信号或数字中频信号，并将数字基带信号或数字中频信号提供给所述处理器501，以便处理器501对数字基带信号或数字中频信号做进一步的处理，例如解调处理和译码处理。此外，收发器503中的发射机Tx还用于从处理器501接收经过调制的数字基带信号或数字中频信号，并将经过调制的数字基带信号或数字中频信号转换为射频信号，并通过一个或多个天线504发送所述射频信号。具体地，接收机Rx可以选择性地对射频信号进行一级或多级下混频处理和模数转换处理以得到数字基带信号或数字中频信号，前述下混频处理和模数转换处理的先后顺序是可调整的。发射机Tx可以选择性地对经过调制的数字基带信号或数字中频信号时进行一级或多级上混频处理和数模转换处理以得到射频信号，所述上混频处理和数模转换处理的先后顺序是可调整的。数字基带信号和数字中频信号可以统称为数字信号。
应当理解的是，前述收发器503也可以称为收发单元、收发机、收发装置等。可选地，可以将收发单元中用于实现接收功能的器件视为接收单元，将收发单元中用于实现发送功能的器件视为发送单元，即收发单元包括接收单元和发送单元，接收单元也可以称为接收机、输入口、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
此外，前述处理器501主要用于对通信协议以及通信数据进行处理，以及对整个网络设备进行控制，执行软件程序，处理软件程序的数据，例如用于支持通信装置50执行前述实施例中所描述的动作。通信装置50可以包括基带处理器和中央处理器，其中，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个通信装置50进行控制，执行软件程序，处理软件程序的数据。如图5中的处理器501可以集成基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，通信装置50可以包括多个基带处理器以适应不同的网络制式，通信装置50可以包括多个中央处理器以增强其处 理能力，通信装置50的各个部件可以通过各种总线连接。所述基带处理器也可以表述为基带处理电路或者基带处理芯片。所述中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储器中，由处理器执行软件程序以实现基带处理功能。
此外，前述网络接口505用于使通信装置50通过通信链路，与其它通信装置相连。具体地，网络接口505可以包括通信装置50与核心网网元之间的网络接口，例如S1接口；网络接口505也可以包括通信装置50和其他网络设备(例如其他接入网设备或者核心网网元)之间的网络接口，例如X2或者Xn接口。
在一种设计中，通信装置50用于执行前述图2或图3对应实施例中网络设备的方法。通信装置50中的处理器501，用于确定配置信息，配置信息包括用于随机接入特性的随机接入资源集合，随机接入资源集合包括用于短数据包传输SDT随机接入特性的随机接入资源，配置信息用于终端设备发起基于随机接入的短数据包传输以及记录第一随机接入报告，第一随机接入报告包括与随机接入过程相关的信息。收发器503，用于向终端设备发送配置信息。可选的，随机接入特性包括以下至少一项：降低能力的终端设备特性、短数据包传输SDT特性、覆盖增强特性以及网络切片特性。
在一种可能的实施方式中，配置信息还包括随机接入特性的优先级信息，随机接入特性的优先级信息用于基于随机接入资源集合为随机接入过程确定随机接入资源，随机接入资源适用于至少包括SDT在内的一种或者多种随机接入特性；
与随机接入过程相关的信息包括以下一项或多项：
第一指示信息，第一指示信息用于指示触发随机接入过程的至少一种随机接入特性，至少一种随机接入特性包括SDT特性；
随机接入特性的优先级信息；
第二指示信息，第二指示信息用于指示终端设备确定的随机接入资源所适用(对应)的随机接入特性。可选的，随机接入资源适用于至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性。
在一种可能的实施方式中，收发器503，还用于接收来自终端设备的第三指示信息，第三指示信息用于指示终端设备是否支持记录与SDT相关的随机接入报告。
在一种可能的实施方式中，收发器503，还用于向终端设备发送第四指示信息，第四指示信息用于指示终端设备是否记录与SDT相关的随机接入报告。
可选的，第四指示信息包括第一阈值，第一阈值为终端设备记录第一随机接入报告的数量的上限。
在一种可能的实施方式中，收发器503，还用于接收来自终端设备的第五指示信息，第五指示信息用于指示第一随机接入报告的可获得性。
在一种可能的实施方式中，收发器503，还用于向终端设备发送第六指示信息，第六指示信息用于指示终端设备上报第一随机接入报告；以及，接收来自终端设备的第一随机接入报告。
需要说明的是，本实施例的具体实施方式和有益效果可参考上述实施例中网络设备的方法，此处不再赘述。
如图6所示，本申请还提供了一种通信装置60。该通信装置60可以是终端设备或接入网设备，也可以是终端设备或接入网设备的部件(例如，集成电路、芯片等)。该通信装置60也可以是其他用于实现本申请方法实施例中的方法的通信模块。
该通信装置60可以包括处理模块601(或称为处理单元)。可选的，还可以包括接口模块602(或称为收发单元或收发模块)和存储模块603(或称为存储单元)。接口模块602用于实现与其他设备进行通信。接口模块602例如可以是收发模块或输入输出模块。
在一种可能的设计中，如图6中的一个或者多个模块可能由一个或者多个处理器来实现，或者由一个或者多个处理器和存储器来实现；或者由一个或多个处理器和收发器实现；或者由一个或者多个处理器、存储器和收发器实现，本申请实施例对此不作限定。所述处理器、存储器、收发器可以单独设置， 也可以集成于一体。
该通信装置60具备实现本申请实施例描述的终端设备的功能。例如，通信装置60包括终端设备执行本申请实施例描述的终端设备涉及步骤所对应的模块或单元或手段(means)，所述功能或单元或手段(means)可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现，还可以通过软件和硬件结合的方式实现。详细可进一步参考前述对应方法实施例中的相应描述。
或者，通信装置60具备实现本申请实施例描述的接入网设备的功能。例如，所述通信装置60包括接入网设备执行本申请实施例描述的接入网设备涉及步骤所对应的模块或单元或手段(means)，所述功能或单元或手段(means)可以通过软件实现，或者通过硬件实现，也可以通过硬件执行相应的软件实现，还可以通过软件和硬件结合的方式实现。详细可进一步参考前述对应方法实施例中的相应描述。
在一种可能的设计中，本申请实施例中的通信装置60中各个模块可以用于执行本申请实施例中图2或图3对应实施例中终端设备的方法。例如，通信装置60中的接口模块602用于接收来自网络设备的配置信息，配置信息包括用于随机接入特性的随机接入资源集合，随机接入资源集合包括用于短数据包传输SDT随机接入特性的随机接入资源；处理模块601用于当至少包括SDT的一种或者多种随机接入特性满足随机接入的触发条件，根据配置信息发起随机接入过程；以及，记录第一随机接入报告，第一随机接入报告包括与随机接入过程相关的信息。可选的，随机接入特性包括以下至少一项：降低能力的终端设备特性、短数据包传输SDT特性、覆盖增强特性以及网络切片特性。
需要说明的是，本实施例的其他实现方式可以参阅前文图4对应实施例中的通信装置40，此处不予赘述。
在另一种可能的设计中，本申请实施例中的通信装置60中各个模块可以用于执行本申请实施例中图2或图3对应实施例中网络设备的方法。例如，通信装置60中的处理模块601，用于确定配置信息，配置信息包括用于随机接入特性的随机接入资源集合，随机接入资源集合包括用于短数据包传输SDT随机接入特性的随机接入资源，配置信息用于终端设备发起基于随机接入的短数据包传输。接口模块602用于向终端设备发送配置信息。可选的，随机接入特性包括以下至少一项：降低能力的终端设备特性、短数据包传输SDT特性、覆盖增强特性以及网络切片特性。
需要说明的是，本实施例的其他实现方式可以参阅前文图5对应实施例中的通信装置50，此处不予赘述。
此外，本申请提供了一种计算机程序产品，该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行该计算机程序指令时，全部或部分地产生按照本申请实施例该的流程或功能。例如，实现如前述图2或图3中的网络设备相关的方法。又例如，实现如前述图2或图3中的终端设备相关的方法。该计算机可以是通用计算机、专用计算机、计算机网络或者其他可编程装置。该计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一计算机可读存储介质传输，例如，该计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如，同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如，红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。该计算机可读存储介质可以是计算机能够存储的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。该可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，数字通用光盘(digital versatile disc，DVD))、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。
此外，本申请还提供了一种计算机可读存储介质，该存储介质存储有计算机程序，该计算机程序被处理器执行以实现如前述图2或图3中的网络设备相关的方法。
此外，本申请还提供了一种计算机可读存储介质，该存储介质存储有计算机程序，该计算机程序被处理器执行以实现如前述图2或图3中的终端设备相关的方法。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。

Claims (19)

  1. 一种随机接入报告记录方法，其特征在于，包括：
    终端设备接收来自网络设备的配置信息，所述配置信息包括用于随机接入特性的随机接入资源集合，所述随机接入特性包括以下至少一项：降低能力的终端设备特性、短数据包传输SDT特性、覆盖增强特性以及网络切片特性；
    当至少包括短数据包传输SDT特性的一种或者多种随机接入特性满足随机接入的触发条件时，所述终端设备根据所述配置信息发起随机接入过程；
    所述终端设备记录第一随机接入报告，所述第一随机接入报告包括与所述随机接入过程相关的信息。
  2. 根据权利要求1所述的方法，其特征在于，所述配置信息还包括至少一种随机接入特性的优先级信息，终端设备根据所述配置信息为所述随机接入过程确定可用的所述随机接入资源，所述随机接入资源适用于至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性；
    所述与随机接入过程相关的信息包括以下一项或多项：
    第一指示信息，所述第一指示信息用于指示触发所述随机接入过程的至少一种随机接入特性，所述至少一种随机接入特性包括SDT特性；
    所述至少一种随机接入特性的优先级信息；
    第二指示信息，所述第二指示信息用于指示所述终端设备确定的所述随机接入资源所对应的随机接入特性。
  3. 根据权利要求2所述的方法，其特征在于，所述与所述随机接入过程相关的信息还包括以下任意一项或者多项：
    随机接入的小区标识信息、随机接入的频点信息、时频域配置信息、信号质量测量信息、信号质量测量信息满足质量门限的指示信息、进行随机接入尝试的波束信息、两步随机接入待传输数据量、以及两步随机接入的物理上行共享信道PUSCH配置信息。
  4. 根据权利要求1至3中任意一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备向所述网络设备发送第三指示信息，所述第三指示信息用于指示所述终端设备是否支持记录与SDT相关的随机接入报告。
  5. 根据权利要求1至4中任意一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收来自所述网络设备的第四指示信息，所述第四指示信息用于指示所述终端设备是否记录与SDT相关的随机接入报告。
  6. 根据权利要求5所述的方法，其特征在于，所述第四指示信息包括第一阈值，所述第一阈值为所述终端设备记录所述第一随机接入报告的数量的上限；
    所述终端设备记录第一随机接入报告，包括：
    当所述终端设备已记录的历史第一随机接入报告的数量小于所述第一阈值时，所述终端设备记录所述第一随机接入报告。
  7. 根据权利要求1至6中任意一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备向所述网络设备发送第五指示信息，所述第五指示信息用于指示所述第一随机接入报告的可获得性。
  8. 根据权利要求7所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收来自所述网络设备的第六指示信息，所述第六指示信息用于指示所述终端设备上报所述第一随机接入报告；
    所述终端设备向所述网络设备发送所述第一随机接入报告。
  9. 一种随机接入报告记录方法，其特征在于，包括：
    网络设备向终端设备发送配置信息，所述配置信息包括用于随机接入特性的随机接入资源集合，所述随机接入特性包括以下至少一项：降低能力的终端设备特性、短数据包传输SDT特性、覆盖增强特性、以及网络切片特性，所述配置信息用于所述终端设备选择随机接入资源并发起随机接入过程。
  10. 根据权利要求9所述的方法，其特征在于，所述配置信息还包括至少一种随机接入特性的优先级 信息，所述随机接入特性的优先级信息用于基于所述随机接入资源集合为所述随机接入过程确定可用的所述随机接入资源，所述随机接入资源适用于至少包括SDT特性在内的一种或者多种随机接入特性中全部或者部分随机接入特性；
    所述与随机接入过程相关的信息包括以下一项或多项：
    第一指示信息，所述第一指示信息用于指示触发所述随机接入过程的至少一种随机接入特性，所述至少一种随机接入特性包括SDT特性；
    所述至少一种随机接入特性的优先级信息；
    第二指示信息，所述第二指示信息用于指示所述终端设备确定的所述随机接入资源所对应的随机接入特性。
  11. 根据权利要求10所述的方法，其特征在于，所述与所述随机接入过程相关的信息还包括以下任意一项或者多项：
    随机接入的小区标识信息、随机接入的频点信息、时频域配置信息、信号质量测量信息、信号质量测量信息满足质量门限的指示信息、进行随机接入尝试的波束信息、两步随机接入待传输数据量、以及两步随机接入的物理上行共享信道PUSCH配置信息。
  12. 根据权利要求9至11中任意一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备接收来自终端设备的第三指示信息，所述第三指示信息用于指示所述终端设备是否支持记录与SDT相关的随机接入报告。
  13. 根据权利要求9至12中任意一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备向所述终端设备发送第四指示信息，所述第四指示信息用于指示所述终端设备是否记录与SDT相关的随机接入报告。
  14. 根据权利要求13所述的方法，其特征在于，所述第四指示信息包括第一阈值，所述第一阈值为所述终端设备记录所述第一随机接入报告的数量的上限。
  15. 根据权利要求9至14中任意一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备接收来自所述终端设备的第五指示信息，所述第五指示信息用于指示所述第一随机接入报告的可获得性。
  16. 根据权利要求15所述的方法，其特征在于，所述方法还包括：
    所述网络设备向所述终端设备发送第六指示信息，所述第六指示信息用于指示所述终端设备上报所述第一随机接入报告；
    所述网络设备接收来自所述终端设备的所述第一随机接入报告。
  17. 一种通信装置，其特征在于，包括处理器和存储器；
    其中，存储器存储有计算机程序；
    所述处理器调用所述计算机程序以使得所述通信装置执行如权利要求1至8中任意一项所述的方法。
  18. 一种通信装置，其特征在于，包括处理器和存储器；
    其中，存储器存储有计算机程序；
    所述处理器调用所述计算机程序以使得所述通信装置执行如权利要求9至16中任意一项所述的方法。
  19. 一种计算机可读存储介质，存储有指令，当所述指令在计算机上运行时，使得计算机执行如权利要求1至8中任意一项所述的方法；或者，执行如权利要求9至16中任意一项所述的方法。
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