Random access resource determination method and apparatus, communication device, and storage medium

Patent metadata

Field	Value
Publication number	US-12477522-B2
Application number	US-202218073706-A
Country	US
Kind code	B2
Filing date	Dec 2, 2022
Priority date	Jul 14, 2020
Publication date	Nov 18, 2025
Grant date	Nov 18, 2025

Abstract

A random access resource determination method and apparatus, a communication device, and a storage medium are provided. The method is applied to a terminal device. The method comprises: receiving random access configuration information, the random access configuration information being used to indicate that a random access resource is allocated according to a network slice or an object that has mapping with the network slice; and determining the random access resource according to the random access configuration information, the random access resource matching a target network slice to be accessed by a terminal device.

First claim

The invention claimed is:

1 . A method for determining a random access resource, applicable for a terminal device and comprising:
receiving random access configuration information, wherein the random access configuration information is used for indicating that random access resources are allocated according to network slices; and determining the random access resource according to the random access configuration information, wherein the random access resource is matched with a target network slice to be accessed by the terminal device, wherein the random access resources comprise random access preambles and random access time-frequency resources, and the random access configuration information comprises a bitmap for indicating whether to allocate random access preambles for at least one of the network slices and a bitmap for indicating whether to allocate random access time-frequency resources for the at least one of the network slices.

2 . The method of claim 1 , wherein,
the random access configuration information is carried in a system message; or the random access configuration information is carried in radio resource control (RRC) signaling.

3 . The method of claim 1 , wherein,
the random access preambles are allocated according to an ascending order of identifiers of the network slices; or the random access preambles are allocated according to a descending order of the identifiers of the network slices.

4 . The method of claim 1 , wherein,
the random access time-frequency resources are allocated according to an ascending order of identifiers of the network slices; or the random access time-frequency resources are allocated according to a descending order of the identifiers of the network slices.

5 . The method of claim 1 , wherein,
the network slices comprise default network slices; or the random access configuration information is further used for indicating a correspondence between a random access resource and a random access performed due to a non-data-transmission service.

6 . The method of claim 5 , wherein the non-data-transmission service comprises at least one of following:
tracking area update, uplink time advance acquisition, or radio access network notification area update.

7 . The method of claim 1 , further comprising:
performing a random access using the random access resource.

8 . A method for determining a random access resource, applicable for a network device and comprising:
transmitting random access configuration information, wherein the random access configuration information is used for indicating that random access resources are allocated according to network slices; wherein the random access configuration information is used for a terminal device to determine the random access resource, and the random access resource is matched with a target network slice to be accessed by the terminal device, wherein the random access resources comprise random access preambles and random access time-frequency resources, and the random access configuration information comprises a bitmap for indicating whether to allocate random access preambles for at least one of the network slices and a bitmap for indicating whether to allocate random access time-frequency resources for the at least one of the network slices.

9 . The method of claim 8 , wherein,
the random access configuration information is carried in a system message; or the random access configuration information is carried in radio resource control (RRC) signaling.

10 . The method of claim 8 , wherein,
the random access preambles are allocated according to an ascending order of identifiers of the network slices; or the random access preambles are allocated according to a descending order of the identifiers of the network slices.

11 . The method of claim 8 , wherein,
the random access time-frequency resources are allocated according to an ascending order of identifiers of the network slices; or the random access time-frequency resources are allocated according to a descending order of the identifiers of the network slices.

12 . The method of claim 8 , wherein,
the network slices comprise default network slices; or the random access configuration information is further used for indicating a correspondence between a random access resource and a random access performed due to a non-data-transmission service.

13 . The method of claim 12 , wherein the non-data-transmission service comprises at least one of following:
tracking area update, uplink time advance acquisition, or radio access network notification area update.

14 . A terminal device comprising:
a processor; a transceiver connected to the processor; and a memory for storing instructions executable for the processor; wherein the processor is configured to load and execute the executable instructions to perform operations comprising: receiving random access configuration information, wherein the random access configuration information is used for indicating that random access resources are allocated according to network slices; and determining the random access resource according to the random access configuration information, wherein the random access resource is matched with a target network slice to be accessed by the terminal device, wherein the random access resources comprise random access preambles and random access time-frequency resources, and the random access configuration information comprises a bitmap for indicating whether to allocate random access preambles for at least one of the network slices and a bitmap for indicating whether to allocate random access time-frequency resources for the at least one of the network slices.

15 . The terminal device of claim 14 , wherein,
the random access configuration information is carried in a system message; or the random access configuration information is carried in radio resource control (RRC) signaling.

16 . The terminal device of claim 14 , wherein,
the random access preambles are allocated according to an ascending order of identifiers of the network slices; or the random access preambles are allocated according to a descending order of the identifiers of the network slices.

17 . The terminal device of claim 14 , wherein,
the random access time-frequency resources are allocated according to an ascending order of identifiers of the network slices; or the random access time-frequency resources are allocated according to a descending order of the identifiers of the network slices.

18 . The terminal device of claim 14 , wherein,
the network slices comprise default network slices; or the random access configuration information is further used for indicating a correspondence between a random access resource and a random access performed due to a non-data-transmission service.

19 . The terminal device of claim 18 , wherein the non-data-transmission service comprises at least one of following:
tracking area update, uplink time advance acquisition, or radio access network notification area update.

20 . The terminal device of claim 14 , wherein the operations further comprise:
performing a random access using the random access resource.

Assignees

• Guangdong Oppo Mobile Telecommunications Corp Ltd

Inventors

• Fu Zhe
• Shi Cong

Classifications

• H04W74/0833 Primary

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

• H04W48/18

  Selecting a network or a communication service · CPC title

• H04W72/535

  based on resource usage policies · CPC title

• H04W72/04 Primary

  Wireless resource allocation · CPC title

• H04W74/006 Primary

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