# US 12,193,060 B2 · Random access method and apparatus, and communications device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,193,060 B2 - Document ID: US12193060B2 - Status: Granted - Kind: B2 - Application number: 17/383,531 - Filed: 2021-07-23 - Published: 2021-11-11 - Granted: 2025-01-07 - Earliest claimed: 2019-01-25 - Assignees: Vivo Mobile Communication Co., Ltd. - Applicants: Vivo Mobile Communication Co., Ltd. - Inventors: Yue Ma - Web page: https://patentgrep.com/patent/US12193060B2 ## CPC - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04W 74/006: {in the downlink, i.e. towards the terminal} - H04W 74/0836: with 2-step access - H04W 74/0838: using contention-free random access [CFRA] - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A random access method and apparatus, and a communications device are provided, and relates to the field of wireless communications technologies. The random access method includes: receiving, by a terminal, random access configuration information from a network side device, wherein the random access configuration information comprises at least a random access threshold; and selecting, by the terminal, a random access manner according to the random access configuration information. ## Claims ### Claim 1 A random access method, comprising: receiving, by a terminal, random access configuration information from a network side device, wherein the random access configuration information comprises at least a random access threshold; and selecting, by the terminal, a random access manner according to the random access configuration information; wherein after the selecting, by the terminal, a random access manner according to the random access configuration information, the method further comprises: using, by the terminal, the selected random access manner for nth random access, wherein n is a positive integer; and after the nth random access fails or is not completed or is unsuccessful, selecting, by the terminal, a random access manner for (n+1)th random access according to any one of the following methods: when both of the two random access manners can meet a preset priority requirement, selecting a random access manner different from that for the nth random access; after the random access manner for the nth random access has been selected for a preset number of times, when both of the two random access manners can meet a preset priority requirement, selecting a random access manner different from that for the nth random access; after the random access manner for the nth random access has been executed for a preset time, when both of the two random access manners can meet a preset priority requirement, selecting a random access manner different from that for the nth random access; selecting a random access manner according to a newly generated random access parameter, wherein the newly generated random access parameter is less than a random access parameter corresponding to the nth random access, and a difference between the two random access parameters is a specified value; or when both of the two random access manners can meet a preset priority requirement, selecting a random access manner according to the newly generated random access parameter, wherein the newly generated random access parameter is less than a random access parameter corresponding to the nth random access, and a difference between the two random access parameters is a specified value. ### Claim 2 (depends on 1) The random access method according to claim 1, wherein the random access manner comprises a four-step random access manner and a two-step random access manner, and the selecting, by the terminal, a random access manner according to the random access configuration information comprises: generating, by the terminal, a random access parameter, comparing the random access parameter with the random access threshold, and selecting the four-step random access manner or the two-step random access manner according to a comparison result. ### Claim 3 (depends on 2) The random access method according to claim 2, wherein the generating, by the terminal, a random access parameter comprises at least one of the following: generating, by the terminal, a random number as the random access parameter; dividing, by the terminal, a terminal identifier exactly by a preset value to obtain the random access parameter; or calculating, by the terminal, the random access parameter by using a redistribution formula, wherein a calculation parameter of the redistribution formula comprises at least one of the following: the terminal identifier, the random access threshold, and the random number. ### Claim 4 (depends on 2) The random access method according to claim 2, wherein the random access configuration information further comprises a priority of the random access manner, and the priority is determined according to at least one of the following: a service requirement, signal quality, a deployment scenario, a cell size, and channel occupancy information. ### Claim 5 (depends on 1) The random access method according to claim 1, wherein the preset priority requirement is preconfigured, or is configured by the network side device. ### Claim 6 (depends on 1) A non-transitory computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the random access method according to claim 1 are implemented. ### Claim 7 A communications device, comprising: a memory, a processor, and a computer program that is stored on the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the following steps are implemented: receiving random access configuration information from a network side device, wherein the random access configuration information comprises at least a random access threshold; and selecting a random access manner according to the random access configuration information; wherein after the selecting a random access manner according to the random access configuration information, when the computer program is executed by the processor, the following steps are implemented: using the selected random access manner for nth random access, wherein n is a positive integer; and after the nth random access fails or is not completed or is unsuccessful, selecting a random access manner for (n+1)th random access according to any one of the following methods: when both of the two random access manners can meet a preset priority requirement, selecting a random access manner different from that for the nth random access; after the random access manner for the nth random access has been selected for a preset number of times, when both of the two random access manners can meet a preset priority requirement, selecting a random access manner different from that for the nth random access; after the random access manner for the nth random access has been executed for a preset time, when both of the two random access manners can meet a preset priority requirement, selecting a random access manner different from that for the nth random access; selecting a random access manner according to a newly generated random access parameter, wherein the newly generated random access parameter is less than a random access parameter corresponding to the nth random access, and a difference between the two random access parameters is a specified value; or when both of the two random access manners can meet a preset priority requirement, selecting a random access manner according to the newly generated random access parameter, wherein the newly generated random access parameter is less than a random access parameter corresponding to the nth random access, and a difference between the two random access parameters is a specified value. ### Claim 8 (depends on 7) The communications device according to claim 7, wherein the random access manner comprises a four-step random access manner and a two-step random access manner, and the selecting a random access manner according to the random access configuration information comprises: generating a random access parameter, comparing the random access parameter with the random access threshold, and selecting the four-step random access manner or the two-step random access manner according to a comparison result. ### Claim 9 (depends on 8) The communications device according to claim 8, wherein the generating a random access parameter comprises at least one of the following: generating a random number as the random access parameter; dividing a terminal identifier exactly by a preset value to obtain the random access parameter; or calculating the random access parameter by using a redistribution formula, wherein a calculation parameter of the redistribution formula comprises at least one of the following: the terminal identifier, the random access threshold, and the random number. ### Claim 10 (depends on 8) The communications device according to claim 8, wherein the random access configuration information further comprises a priority of the random access manner, and the priority is determined according to at least one of the following: a service requirement, signal quality, a deployment scenario, a cell size, and channel occupancy information. ### Claim 11 (depends on 7) The communications device according to claim 7, wherein the preset priority requirement is preconfigured, or is configured by the network side device. ### Claim 12 A random access method, comprising: receiving, by a terminal, random access configuration information from a network side device, wherein the random access configuration information comprises at least a random access threshold; and selecting, by the terminal, a random access manner according to the random access configuration information; wherein the random access manner comprises a four-step random access manner and a two-step random access manner, and the selecting, by the terminal, a random access manner according to the random access configuration information comprises: generating, by the terminal, a random access parameter, comparing the random access parameter with the random access threshold, and selecting the four-step random access manner or the two-step random access manner according to a comparison result; wherein the generating, by the terminal, a random access parameter comprises at least one of the following: generating, by the terminal, a random number as the random access parameter; dividing, by the terminal, a terminal identifier exactly by a preset value to obtain the random access parameter; or calculating, by the terminal, the random access parameter by using a redistribution formula, wherein a calculation parameter of the redistribution formula comprises at least one of the following: the terminal identifier, the random access threshold, and the random number. ### Claim 13 (depends on 12) The random access method according to claim 12, wherein the random access configuration information further comprises a priority of the random access manner, and the priority is determined according to at least one of the following: a service requirement, signal quality, a deployment scenario, a cell size, and channel occupancy information. ### Claim 14 (depends on 13) The random access method according to claim 13, wherein after the selecting, by the terminal, a random access manner according to the random access configuration information, the method further comprises: using, by the terminal, the selected random access manner for nth random access, wherein n is a positive integer; and after the nth random access fails or is not completed or is unsuccessful, selecting, by the terminal, a random access manner for (n+1)th random access according to any one of the following methods: selecting the same random access manner as that for the nth random access; selecting a random access manner different from that for the nth random access; when both of the two random access manners can meet a preset priority requirement, selecting a random access manner different from that for the nth random access; after the random access manner for the nth random access has been selected for a preset number of times, selecting a random access manner different from that for the nth random access; after the random access manner for the nth random access has been selected for a preset number of times, when both of the two random access manners can meet a preset priority requirement, selecting a random access manner different from that for the nth random access; after the random access manner for the nth random access has been executed for a preset time, selecting a random access manner different from that for the nth random access; after the random access manner for the nth random access has been executed for a preset time, when both of the two random access manners can meet a preset priority requirement, selecting a random access manner different from that for the nth random access; selecting a random access manner according to a newly generated random access parameter, wherein the newly generated random access parameter is less than a random access parameter corresponding to the nth random access, and a difference between the two random access parameters is a specified value; or when both of the two random access manners can meet a preset priority requirement, selecting a random access manner according to the newly generated random access parameter, wherein the newly generated random access parameter is less than a random access parameter corresponding to the nth random access, and a difference between the two random access parameters is a specified value. ### Claim 15 (depends on 14) The random access method according to claim 14, wherein the preset priority requirement is preconfigured, or is configured by the network side device. ### Claim 16 (depends on 12) A communications device, comprising: a memory, a processor, and a computer program that is stored on the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps of the random access method according to claim 12 are implemented. ### Claim 17 (depends on 16) The communications device according to claim 16, wherein the random access configuration information further comprises a priority of the random access manner, and the priority is determined according to at least one of the following: a service requirement, signal quality, a deployment scenario, a cell size, and channel occupancy information. ### Claim 18 (depends on 17) The communications device according to claim 17, wherein after the selecting a random access manner according to the random access configuration information, when the computer program is executed by the processor, the following steps are implemented: using the selected random access manner for nth random access, wherein n is a positive integer; and after the nth random access fails or is not completed or is unsuccessful, selecting a random access manner for (n+1)th random access according to any one of the following methods: selecting the same random access manner as that for the nth random access; selecting a random access manner different from that for the nth random access; when both of the two random access manners can meet a preset priority requirement, selecting a random access manner different from that for the nth random access; after the random access manner for the nth random access has been selected for a preset number of times, selecting a random access manner different from that for the nth random access; after the random access manner for the nth random access has been selected for a preset number of times, when both of the two random access manners can meet a preset priority requirement, selecting a random access manner different from that for the nth random access; after the random access manner for the nth random access has been executed for a preset time, selecting a random access manner different from that for the nth random access; after the random access manner for the nth random access has been executed for a preset time, when both of the two random access manners can meet a preset priority requirement, selecting a random access manner different from that for the nth random access; selecting a random access manner according to a newly generated random access parameter, wherein the newly generated random access parameter is less than a random access parameter corresponding to the nth random access, and a difference between the two random access parameters is a specified value; or when both of the two random access manners can meet a preset priority requirement, selecting a random access manner according to the newly generated random access parameter, wherein the newly generated random access parameter is less than a random access parameter corresponding to the nth random access, and a difference between the two random access parameters is a specified value. ### Claim 19 (depends on 18) The communications device according to claim 18, wherein the preset priority requirement is preconfigured, or is configured by the network side device. ### Claim 20 (depends on 12) A non-transitory computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the random access method according to claim 12 are implemented.