Communication method and apparatus

Patent metadata

Field	Value
Publication number	US-12532296-B2
Application number	US-202318475850-A
Country	US
Kind code	B2
Filing date	Sep 27, 2023
Priority date	Apr 1, 2021
Publication date	Jan 20, 2026
Grant date	Jan 20, 2026

Abstract

A communication method includes: obtaining configuration information, where the configuration information indicates a resource set, the resource set includes a first resource set and/or a second resource set, a resource in the first resource set may be used by a terminal of a first capability type to send a preamble, a resource in the second resource set may be used by a terminal of a second capability type to send a preamble, and the first resource set and the second resource set share at least some resources; selecting a target resource from the resource set, and sending a preamble by using the target resource; then receiving a random access response; and sending first random access information when the shared at least some resources include the target resource, where the first random access information may indicate a capability type of the terminal.

First claim

What is claimed is:

1 . A communication method, wherein the method comprises:
obtaining configuration information, wherein the configuration information indicates a resource set, the resource set comprises at least one of a first resource set or a second resource set, the first resource set comprises preamble resources for a terminal of a first capability type, the second resource set comprises preamble resources for a terminal of a second capability type, and the first resource set and the second resource set share at least one resource; selecting a target resource from the resource set, and sending a preamble by using the target resource; receiving a random access response; and sending first random access information when the shared at least one resource comprises the target resource, wherein the first random access information indicates a capability type of a terminal, and the capability type of the terminal comprises the first capability type or the second capability type.

2 . The communication method according to claim 1 , wherein
the first resource set comprises a first random access occasion (RO) set, and the first RO set comprises at least one first RO; the second resource set comprises a second RO set, and the second RO set comprises at least one second RO; and the first RO is an RO for a terminal of the first capability type, and the second RO is an RO for a terminal of the second capability type; or the first resource set comprises a first preamble set, the first preamble set comprises at least one first preamble, and the first preamble is a preamble for a terminal of the first capability type; and the second resource set comprises a second preamble set, the second preamble set comprises at least one second preamble, and the second preamble is a preamble for a terminal of the second capability type; and that the first resource set and the second resource set share at least one resource comprises: the first RO set and the second RO set share at least one RO, or the first preamble set and the second preamble set share at least one preamble.

3 . The communication method according to claim 2 , wherein the configuration information further indicates the at least one RO shared by the first RO set and the second RO set, or the at least one preamble shared by the first preamble set and the second preamble set, or the at least one RO shared by the first RO set and the second RO set and the at least one preamble shared by the first preamble set and the second preamble set.

4 . The communication method according to claim 1 , wherein the sending first random access information comprises:
sending the first random access information on a first time-frequency resource, wherein the first time-frequency resource is discontinuous in time domain; or sending the first random access information on a second time-frequency resource, wherein the second time-frequency resource is continuous in time domain.

5 . The communication method according to claim 1 , wherein the random access response comprises information about a scheduling policy, and the scheduling policy comprises at least one of the following policies: frequency hopping or not, a frequency domain resource, a time domain resource, a modulation and coding scheme, or a transmit power control policy.

6 . The communication method according to claim 5 , wherein the sending first random access information comprises:
sending the first random access information according to the scheduling policy indicated by the random access response.

7 . The communication method according to claim 5 , wherein when the shared at least one resource comprises the target resource, the scheduling policy does not indicate any one of the following: frequency hopping, a frequency hopping range exceeding a bandwidth supported by the terminal, a frequency domain resource exceeding the bandwidth supported by the terminal, a modulation and coding scheme exceeding a threshold, and transmit power control exceeding a threshold.

8 . A communication method, wherein the method comprises:
sending configuration information, wherein the configuration information indicates a resource set, the resource set comprises at least one of a first resource set or a second resource set, the first resource set comprises preamble resources for a terminal of a first capability type, the second resource set comprises preamble resources for a terminal of a second capability type, and the first resource set and the second resource set share at least one resource; receiving a preamble by using a target resource in the resource set; sending a random access response; and receiving first random access information when the shared at least one resource comprises the target resource, wherein the first random access information indicates a capability type of a terminal, and the capability type of the terminal comprises the first capability type or the second capability type.

9 . The communication method according to claim 8 , wherein
the first resource set comprises a first random access occasion (RO) set, and the first RO set comprises at least one first RO; the second resource set comprises a second RO set, and the second RO set comprises at least one second RO; and the first RO is an RO for a terminal of the first capability type, and the second RO is an RO for a terminal of the second capability type; or the first resource set comprises a first preamble set, the first preamble set comprises at least one first preamble, and the first preamble is a preamble for a terminal of the first capability type; and the second resource set comprises a second preamble set, the second preamble set comprises at least one second preamble, and the second preamble is a preamble for a terminal of the second capability type; and that the first resource set and the second resource set share at least one resource comprises: the first RO set and the second RO set share at least one RO, or the first preamble set and the second preamble set share at least one preamble.

10 . The communication method according to claim 9 , wherein the target resource comprises a target RO and a target preamble; and
that the shared at least one resource comprises the target resource comprises: the at least one RO shared by the first RO set and the second RO set comprises the target RO, and the at least one preamble shared by the first preamble set and the second preamble set comprises the target preamble.

11 . The communication method according to claim 8 wherein the receiving first random access information comprises:
receiving the first random access information on a first time-frequency resource, wherein the first time-frequency resource is discontinuous in time domain; or
receiving the first random access information on a second time-frequency resource, wherein the second time-frequency resource is continuous in time domain.

12 . The communication method according to claim 8 , wherein the random access response comprises information about a scheduling policy, and the scheduling policy comprises at least one of the following policies: frequency hopping or not, a frequency domain resource, a time domain resource, a modulation and coding scheme, or a transmit power control policy.

13 . The method according to claim 12 , wherein the receiving first random access information comprises:
receiving the first random access information according to the scheduling policy.

14 . The communication method according to claim 12 , wherein when the shared at least one resource comprises the target resource, the scheduling policy does not indicate any one of the fol

Assignees

• Huawei Tech Co Ltd

Inventors

• Li Qiang
• Xue Yifan
• Xue Lixia

Classifications

• H04W74/0833

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

• H04W72/51

  based on terminal or device properties · CPC title

• H04W72/02 Primary

  Selection of wireless resources by user or terminal · CPC title

• H04W74/006 Primary

  in the downlink, i.e. towards the terminal · CPC title