# US 2019/0357265 A1 · Random access method and terminal > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0357265 A1 - Document ID: US20190357265A1 - Status: Published application - Kind: A1 - Application number: 16/476,044 - Filed: 2018-02-12 - Published: 2019-11-21 - Earliest claimed: 2017-01-06 - Assignees: China Academy of Telecommunications Technology - Applicants: China Academy of Telecomunications Technology - Inventors: Bin REN; Tony EKPENYONG; Xueming PAN - Web page: https://patentgrep.com/patent/US20190357265A1 ## CPC - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 74/006: {in the downlink, i.e. towards the terminal} - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04W 74/0836: with 2-step access - 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 a terminal are provided. The random access method comprises: receiving random access mechanism configuration information sent by a base station, wherein the random access mechanism configuration information includes a random access type and random access time-frequency resource information corresponding to the random access type, and the random access type includes a first random access mechanism and/or a second random access mechanism; and performing a random access process of the first random access mechanism or the second random access mechanism according to the random access mechanism configuration information. ## Claims ### Claim 1 A random access method, comprising: receiving random access mechanism configuration information sent by a base station, wherein the random access mechanism configuration information comprises a random access type and random access time-frequency resource information corresponding to the random access type, and the random access type comprises a first random access mechanism and/or a second random access mechanism; and performing a random access process of the first random access mechanism or the second random access mechanism according to the random access mechanism configuration information. ### Claim 2 (depends on 1) The random access method according to claim 1, wherein the random access time-frequency resource information comprises at least one of a cell-level random access time-frequency resource and a user-level random access time-frequency resource. ### Claim 3 (depends on 2) The random access method according to claim 2, wherein in a case that the random access type comprises the first random access mechanism and the second random access mechanism, and the random access time-frequency resource information corresponding to the random access type is the cell-level random access time-frequency resource, the performing the random access process of the first random access mechanism or the second random access mechanism according to the random access mechanism configuration information further comprises: determining, according to a service requirement of a terminal, whether the random access mechanism used by the terminal performing a random access is the first random access mechanism or the second random access mechanism, and performing the random access process of the selected first random access mechanism or the selected second random access mechanism, wherein the service requirement comprises a service latency requirement and/or a service reliability requirement; or randomly determining one of the first random access mechanism and the second random access mechanism as the random access mechanism used by the terminal performing a random access, and performing the random access process. ### Claim 4 (depends on 2) The random access method according to claim 2, wherein in a case that the random access time-frequency resource information corresponding to the random access type is the user-level random access time-frequency resource, the performing the random access process of the first random access mechanism or the second random access mechanism according to the random access mechanism configuration information further comprises: triggering the random access process of the first random access mechanism or the second random access mechanism by using a preset preamble on the random access time-frequency resource specified in the random access mechanism configuration information. ### Claim 5 (depends on 1) The random access method according to claim 1, wherein in a case that the random access type comprises the first random access mechanism and the second random access mechanism, the random access time-frequency resource information corresponding to the first random access mechanism and the random access time-frequency resource information corresponding to the second random access mechanism are configured on the same or different sub-bands. ### Claim 6 (depends on 1) The random access method according to claim 1, wherein in a case that the random access type comprises the second random access mechanism, a preamble and data of the second random access mechanism are configured in a time division multiplexing manner or a frequency division multiplexing manner. ### Claim 7 (depends on 1) The random access method according to claim 1, wherein in a case that the random access type comprises the first random access mechanism and the second random access mechanism, and a preamble and data of the second random access mechanism are configured in a frequency division multiplexing manner, the random access time-frequency resource information corresponding to the first random access mechanism and the random access time-frequency resource information corresponding to the second random access mechanism are configured by using the same sub-band and time slot. ### Claim 8 (depends on 7) The random access method according to claim 7, wherein the random access mechanism configuration information further comprises a preamble allocated for the random access type, a preset random access preamble is divided into a first set and a second set, the first set corresponds to the first random access mechanism, and the second set corresponds to the second random access mechanism. ### Claim 9 (depends on 1) The random access method according to claim 1, wherein the receiving the random access mechanism configuration information sent by the base station comprises: receiving the random access mechanism configuration information notified by the base station through a downlink broadcast channel or a downlink dedicated control signaling. ### Claim 10 A terminal, comprising: a processor, a memory connected to the processor via a bus interface and configured to store computer instructions and data used by the processor in performing operations, wherein the computer instructions are called and executed by the processor to: receive random access mechanism configuration information sent by a base station, wherein the random access mechanism configuration information comprises a random access type and random access time-frequency resource information corresponding to the random access type, and the random access type comprises a first random access mechanism and/or a second random access mechanism; and perform a random access process of the first random access mechanism or the second random access mechanism according to the random access mechanism configuration information. ### Claim 11 (depends on 10) The terminal according to claim 10, wherein the random access time-frequency resource information comprises at least one of a cell-level random access time-frequency resource and a user-level random access time-frequency resource. ### Claim 12 (depends on 11) The terminal according to claim 11, wherein in a case that the random access type comprises the first random access mechanism and the second random access mechanism, and the random access time-frequency resource information corresponding to the random access type is the cell-level random access time-frequency resource, the computer instructions are called and executed by the processor to: determine, according to a service requirement of the terminal, whether the random access mechanism used by the terminal performing a random access is the first random access mechanism or the second random access mechanism, and perform the random access process of the selected first random access mechanism or the selected second random access mechanism, wherein the service requirement comprises a service latency requirement and/or a service reliability requirement; or randomly determine one of the first random access mechanism and the second random access mechanism as the random access mechanism used by the terminal performing a random access, and perform the random access process. ### Claim 13 (depends on 11) The terminal according to claim 11, wherein in a case that the random access time-frequency resource information corresponding to the random access type is the user-level random access time-frequency resource, the computer instructions are called and executed by the processor to: trigger the random access process of the first random access mechanism or the second random access mechanism by using a preset preamble on the random access time-frequency resource specified in the random access mechanism configuration information. ### Claim 14 (depends on 10) The terminal according to claim 10, wherein in a case that the random access type comprises the first random access mechanism and the second random access mechanism, the random access time-frequency resource information corresponding to the first random access mechanism and the random access time-frequency resource information corresponding to the second random access mechanism are configured on the same or different sub-bands. ### Claim 15 (depends on 10) The terminal according to claim 10, wherein in a case that the random access type comprises the second random access mechanism, a preamble and data of the second random access mechanism are configured in a time division multiplexing manner or a frequency division multiplexing manner. ### Claim 16 (depends on 10) The terminal according to claim 10, wherein in a case that the random access type comprises the first random access mechanism and the second random access mechanism, and a preamble and data of the second random access mechanism are configured in a frequency division multiplexing manner, the random access time-frequency resource information corresponding to the first random access mechanism and the random access time-frequency resource information corresponding to the second random access mechanism are configured by using the same sub-band and time slot. ### Claim 17 (depends on 16) The terminal according to claim 16, wherein the random access mechanism configuration information further comprises a preamble allocated for the random access type, a preset random access preamble is divided into a first set and a second set, the first set corresponds to the first random access mechanism, and the second set corresponds to the second random access mechanism. ### Claim 18 (depends on 10) The terminal according to claim 10, wherein the computer instructions are called and executed by the processor to: receive the random access mechanism configuration information notified by the base station through a downlink broadcast channel or a downlink dedicated control signaling. ### Claim 19 (canceled) ### Claim 20 (depends on 1) A non-volatile storage medium, wherein computer instructions and data are stored in the non-volatile storage medium, wherein the computer instructions are called and executed by a processor to perform the method according to claim 1.