Random access method, configuration indication method and electronic device

Patent metadata

Field	Value
Publication number	US-12513749-B2
Application number	US-202018003736-A
Country	US
Kind code	B2
Filing date	Jul 31, 2020
Priority date	Jul 31, 2020
Publication date	Dec 30, 2025
Grant date	Dec 30, 2025

Abstract

The present disclosure relates to a random access method, a configuration indication method and an electronic device. The random access method includes: initiating random access based on first random access configuration information in response to autonomous determination of timing advance by the terminal, initiating random access based on second random access configuration information in response to non-autonomous determination of timing advance by the terminal; the first random access configuration information is different from the second random access configuration information.

First claim

The invention claimed is:

1 . A random access method, being applied to a terminal, the method comprising:
initiating random access based on first random access configuration information in response to autonomous determination of timing advance by the terminal, initiating random access based on second random access configuration information in response to non-autonomous determination of timing advance by the terminal; wherein the first random access configuration information is different from the second random access configuration information; the first random access configuration information is for indicating a first random access time domain resource, and the second random access configuration information is for indicating a second random access time domain resource; wherein the first random access time domain resource is different from the second random access time domain resource; and density of the first random access time domain resource is different from density of the second random access time domain resource.

2 . The random access method according to claim 1 , wherein the random access method further comprises at least one of:
determining, according to broadcast signaling and/or radio resource control signaling sent by a base station, to initiate the random access based on the first random access configuration information in response to the autonomous determination of the timing advance by the terminal; or determining, according to broadcast signaling and/or radio resource control signaling sent by the base station, to initiate the random access based on the second random access configuration information in response to the non-autonomous determination of the timing advance by the terminal.

3 . The random access method according to claim 1 , wherein the density of the first random access time domain resource is greater than the density of the second random access time domain resource.

4 . The random access method according to claim 1 , wherein the density of the first random access time domain resource is a first multiple of the density of the second random access time domain resource, wherein the first multiple is greater than 1.

5 . The random access method according to claim 4 , wherein initiating the random access based on the second random access configuration information in response to the non-autonomous determination of the timing advance by the terminal, comprises:
determining a time domain location of the second random access time domain resource according to a time domain location of the first random access time domain resource and the first multiple and an offset; and in response to the non-autonomous determination of the timing advance by the terminal, initiating the random access at the time domain location of the second random access time domain resource, and wherein the offset is received from a base station or pre-stored.

6 . The random access method according to claim 1 , wherein the first random access configuration information is for indicating a first random access frequency domain resource, and the second random access configuration information is for indicating a second random access frequency domain resource;
wherein the first random access frequency domain resource is different from the second random access frequency domain resource.

7 . The random access method according to claim 6 , wherein the first random access configuration information is for indicating a first frequency domain location of the first random access frequency domain resource, and the second random access configuration information is for indicating a second frequency domain location of the second random access frequency domain resource; or
the first random access configuration information is for indicating the first frequency domain location of the first random access frequency domain resource, and the second random access configuration information is for indicating a first offset of the second random access frequency domain resource relative to the first frequency domain location; or the second random access configuration information is for indicating the second frequency domain location of the second random access frequency domain resource, and the first random access configuration information is for indicating a second offset of the first random access frequency domain resource relative to the second frequency domain location.

8 . The random access method according to claim 1 , wherein the first random access configuration information is for indicating a first random access preamble, and the second random access configuration information is for indicating a second random access preamble;
wherein the first random access preamble is different from the second random access preamble.

9 . A configuration indication method, being applied to a base station, the configuration indication method comprising:
sending indication information containing first random access configuration information and second random access configuration information to a terminal; wherein the indication information is for instructing the terminal to initiate random access based on the first random access configuration information in response to that the terminal determines timing advance autonomously, and to initiate random access based on the second random access configuration information in response to that the terminal determines timing advance non-autonomously, the first random access configuration information being different from the second random access configuration information; the first random access configuration information is for indicating a first random access time domain resource, and the second random access configuration information is for indicating a second random access time domain resource; wherein the first random access time domain resource is different from the second random access time domain resource; and density of the first random access time domain resource is different from density of the second random access time domain resource.

10 . The configuration indication method according to claim 9 , wherein the indication information is carried in at least one of: broadcast signaling or radio resource control signaling.

11 . The configuration indication method according to claim 9 , wherein the density of the first random access time domain resource is greater than the density of the second random access time domain resource, and
wherein the density of the first random access time domain resource is a first multiple of the density of the second random access time domain resource, wherein the first multiple is greater than 1.

12 . The configuration indication method according to claim 11 , wherein the indication information is further for instructing the terminal to determine a time domain location of the second random access time domain resource according to a time domain location of the first random access time domain resource and the first multiple and an offset;
wherein the offset is comprised in the indication information, or the offset is pre-stored in the terminal.

13 . The configuration indication method according to claim 9 , wherein the first random access configuration information is for indicating a first random access frequency domain resource, and the second random access configuration information is for indicating a second random access frequency domain resource;
wherein the first random access frequency domain resource is different from the second random access frequency domain resource.

14 . The configuration indication method according to claim 13 , wherein the first random acc

Assignees

• Beijing Xiaomi Mobile Software Co Ltd

Inventors

• Jiang Xiaowei

Classifications

• H04W74/0833 Primary

  Random access procedures, e.g. with 4-step access · CPC title

• H04B7/18513

  Transmission in a satellite or space-based system · CPC title

• H04W56/0045 Primary

  compensating for timing error by altering transmission time · CPC title

• H04W84/06

  Airborne or Satellite Networks (space-based or airborne stations H04B7/185) · CPC title