# US 11,452,030 B2 · Information recording method and information recording device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,452,030 B2 - Document ID: US11452030B2 - Status: Granted - Kind: B2 - Application number: 17/041,338 - Filed: 2018-03-26 - Published: 2021-03-25 - Granted: 2022-09-20 - Earliest claimed: 2018-03-26 - Assignees: Beijing Xiaomi Mobile Software Co., Ltd. - Applicants: Beijing Xiaomi Mobile Software Co., Ltd. - Inventors: Xiaowei Jiang - Web page: https://patentgrep.com/patent/US11452030B2 ## CPC - H04W 48/12: using downlink control channel - H04W 76/19: Connection re-establishment - H04W 24/04: Arrangements for maintaining operational condition - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04W 64/00: Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract An information recording method is provided. In the method, the user equipment transmits a request to a base station, where the request is used for acquiring one or more system messages. The user equipment records information related to a request failure if one or more system messages are not acquired on the basis of the request. ## Claims ### Claim 1 A method for recording information, applied to user equipment, and comprising: transmitting a request to a base station, wherein the request is used to acquire one or more system messages; and recording information related to a request failure in response to that the one or more system messages are not acquired based on the request, wherein transmitting the request to the base station comprises: transmitting the request to the base station through at least one of a first message or a third message of random access, wherein the information related to the request failure comprises type information of the request, and the type information indicates that the request is contained in at least one of the first message or the third message. ### Claim 2 (depends on 1) The method of claim 1, wherein the information related to the request failure contains one of information as follows: information related to the system messages; purpose information of the request, wherein the purpose information indicates at least one of cases that the request is used to request the system message, the request is used to request to establish a communication connection with the base station, or the request is used to request to recover the communication connection with the base station; location information of the user equipment; speed information of the user equipment; time information of the user equipment; information of a cell where the user equipment is located; information of signal quality of a cell where the user equipment is located; information of signal quality of a neighboring cell of a cell where the user equipment is located; power information, wherein the power information indicates whether the user equipment reaches maximum transmit power; or competition information, wherein the competition information indicates whether there is other user equipment which competes with the user equipment to access the base station. ### Claim 3 (depends on 1) The method of claim 1, further comprising: receiving preset description information transmitted by the base station before the recording the information related to the request failure, wherein the preset description information is associated with a preset system message; wherein the recording the information related to the request failure in response to that the one or more system messages are not acquired based on the request comprises: determining whether the preset description information contains description information associated with the one or more system messages; and recording the information related to the request failure in response to that the preset description information contains the description information associated with the one or more system messages. ### Claim 4 (depends on 1) The method of claim 1, further comprising: deleting information related to a request failure recorded at a previous time when the system message is not acquired based on the request; and saving information related to a request failure recorded this time when the system message is not acquired based on the request. ### Claim 5 (depends on 1) The method of claim 1, further comprising: saving information related to a request failure recorded each time when the system message is not acquired based on the request. ### Claim 6 (depends on 1) The method of claim 1, further comprising: transmitting a notification that there is available information related to the request failure to the base station when establishing a communication connection with the base station or recovering the communication connection with the base station; receiving a request from the base station for acquiring the information related to the request failure; and transmitting the information related to the request failure to the base station. ### Claim 7 (depends on 6) The method of claim 6, wherein the notification indicates that the information related to the request failure contains information of the system message which is not acquired based on the request, or the notification indicates that the information related to the request failure contains information of a message which is not acquired based on the request. ### Claim 8 (depends on 1) The method of claim 1, wherein the information related to the request failure is contained in minimized driving test information. ### Claim 9 An electronic device, applied to user equipment, and comprising: a processor; and a memory for storing processor-executable instructions; wherein the processor is configured to execute the instructions to implement: transmitting a request to a base station, wherein the request is used to acquire one or more system messages; and recording information related to a request failure in response to that the one or more system messages are not acquired based on the request, wherein the processor is configured to execute the instructions to implement: transmitting a request to the base station through at least one of a first message or a third message of random access, wherein the information related to the request failure contains type information of the request, and the type information indicates that the request is contained in at least one of the first message or the third message. ### Claim 10 (depends on 9) The electronic device of claim 9, wherein the information related to the request failure contains one of information as follows: information related to the system messages; purpose information of the request, wherein the purpose information indicates at least one of cases that the request is used to request the system message, the request is used to request to establish a communication connection with the base station, or the request is used to request to recover the communication connection with the base station; location information of the user equipment; speed information of the user equipment; time information of the user equipment; information of a cell where the user equipment is located; information of signal quality of a cell where the user equipment is located; information of signal quality of a neighboring cell of a cell where the user equipment is located; power information, wherein the power information indicates whether the user equipment reaches maximum transmit power; or competition information, wherein the competition information indicates whether there is other user equipment which competes with the user equipment to access the base station. ### Claim 11 (depends on 9) The electronic device of claim 9, wherein the processor is configured to execute the instructions to implement: receiving preset description information transmitted by the base station before the recording the information related to the request failure, wherein the preset description information is associated with a preset system message; wherein the processor is configured to execute the instructions to implement: determining whether the preset description information contains description information associated with the one or more system messages; and recording the information related to the request failure in response to that the preset description information contains the description information associated with the one or more system messages. ### Claim 12 (depends on 9) The electronic device of claim 9, wherein the processor is configured to execute the instructions to implement: deleting information related to a request failure recorded at a previous time when the system message is not acquired based on the request; and saving information related to a request failure recorded this time when the system message is not acquired based on the request. ### Claim 13 (depends on 9) The electronic device of claim 9, wherein the processor is configured to execute the instructions to implement: saving information related to a request failure recorded each time when the system message is not acquired based on the request. ### Claim 14 (depends on 9) The electronic device of claim 9, wherein the processor is configured to execute the instructions to implement: transmitting a notification that there is available information related to the request failure to the base station when establishing a communication connection with the base station or recovering the communication connection with the base station; receiving a request from the base station for acquiring the information related to the request failure; and transmitting the information related to the request failure to the base station. ### Claim 15 (depends on 14) The electronic device of claim 14, wherein the notification indicates that the information related to the request failure contains information of the system message which is not acquired based on the request, or the notification indicates that the information related to the request failure contains information of a message which is not acquired based on the request. ### Claim 16 (depends on 9) The electronic device of claim 9, wherein the information related to the request failure is contained in minimized driving test information. ### Claim 17 (depends on 1) A non-transitory computer-readable storage medium having stored thereon a computer program, applied to user equipment, wherein the program when executed by a processor, implements operations of the method for recording information of claim 1.