# US 12,120,732 B2 · Random access method and apparatus, and user equipment

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- Number: US 12,120,732 B2
- Document ID: US12120732B2
- Status: Granted
- Kind: B2
- Application number: 17/511,791
- Filed: 2021-10-27
- Published: 2022-02-17
- Granted: 2024-10-15
- Earliest claimed: 2019-04-29
- Assignees: Vivo Mobile Communication Co., Ltd.
- Applicants: Vivo Mobile Communication Co., Ltd.
- Inventors: Xiaohang Chen; Peng Sun
- Web page: https://patentgrep.com/patent/US12120732B2

## CPC

- H04W 74/006: {in the downlink, i.e. towards the terminal}
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 74/0833: Random access procedures, e.g. with 4-step access
- H04W 74/0866: {using a dedicated channel for 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

This disclosure provides a random access method and apparatus, and user equipment, and belongs to the field of wireless communications technologies. The random access method is applied to user equipment and includes: in a case that a time domain resource for a random access message conflicts with a time domain resource indicated by a network-side message, performing any one of the following: transmitting the random access message on the time domain resource for the random access message; canceling transmission of the random access message; delaying transmission of the random access message; and ignoring the network-side message.

## Claims

### Claim 1

A random access method, applied to user equipment and comprising:
in a case that a time domain resource for a random access message conflicts with a time domain resource indicated by a network-side message,
canceling transmission of the random access message;
wherein the network-side message is downlink control information (DCI);
wherein the canceling transmission of the random access message comprises:
in a case that a time gap between a time domain resource for receiving the DCI and a time domain resource for transmitting the random access message is greater than or equal to a preset threshold, canceling transmission of the random access message.

### Claim 2 (depends on 1)

The random access method according to claim 1, further comprising:
in a case that the time gap between the time domain resource for receiving the DCI and the time domain resource for transmitting the random access message is not greater than the preset threshold, transmitting the random access message on the time domain resource for the random access message.

### Claim 3 (depends on 1)

The random access method according to claim 1, wherein the time gap is duration from an end location of the time domain resource for receiving the DCI to any location of the time domain resource for transmitting the random access message.

### Claim 4 (depends on 1)

The random access method according to claim 1, wherein the random access message comprises at least one of a random access channel (PRACH) or an uplink data channel (PUSCH).

### Claim 5

User equipment, comprising: a processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, a random access method is implemented, and the random access method comprises:
in a case that a time domain resource for a random access message conflicts with a time domain resource indicated by a network-side message,
canceling transmission of the random access message;
wherein the network-side message is downlink control information (DCI);
wherein the canceling transmission of the random access message comprises:
in a case that a time gap between a time domain resource for receiving the DCI and a time domain resource for transmitting the random access message is greater than or equal to a preset threshold, canceling transmission of the random access message.

### Claim 6 (depends on 5)

The user equipment according to claim 5, further comprising:
in a case that the time gap between the time domain resource for receiving the DCI and the time domain resource for transmitting the random access message is not greater than the preset threshold, transmitting the random access message on the time domain resource for the random access message.

### Claim 7 (depends on 5)

The user equipment according to claim 5, wherein the time gap is duration from an end location of the time domain resource for receiving the DCI to any location of the time domain resource for transmitting the random access message.

### Claim 8 (depends on 5)

The user equipment according to claim 5, wherein the random access message comprises at least one of a random access channel (PRACH) or an uplink data channel (PUSCH).

### Claim 9

A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, a random access method is implemented, and the random access method comprises:
in a case that a time domain resource for a random access message conflicts with a time domain resource indicated by a network-side message,
canceling transmission of the random access message;
wherein the network-side message is downlink control information (DCI);
wherein the canceling transmission of the random access message comprises:
in a case that a time gap between a time domain resource for receiving the DCI and a time domain resource for transmitting the random access message is greater than or equal to a preset threshold, canceling transmission of the random access message.