US-12621654-B2 - Communication method and apparatus for random access, and computer-readable storage medium

US12621654B2US 12621654 B2US12621654 B2US 12621654B2US-12621654-B2

Abstract

A communication method for random access includes: an access network device generating configuration information, the configuration information including a first random access parameter of a first terminal and a second random access parameter of a second terminal, the first terminal and the second terminal having different capabilities and/or types, and the first random access parameter and the second random access parameter being at least partially different; and the access network device sending the configuration information.

Inventors

Yang Liu

Assignees

BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20200323

Claims (16)

1 . A communication method for random access, comprising: generating, by an access network device, configuration information, wherein the configuration information comprises a first random access parameter of a first terminal and a second random access parameter of a second terminal, the first terminal and the second terminal have different capabilities, and the first random access parameter is at least partially different from the second random access parameter; and sending, by the access network device, the configuration information, wherein one of the first terminal and the second terminal determines path loss information between the one of the first terminal and the second terminal and the access network device, and determines a random access mode as a 4-step random access or a 2-step random access based on a magnitude relationship between the path loss information and a threshold corresponding to the one of the first terminal and the second terminal, wherein the first random access parameter comprises: first indication information configured to indicate whether the first terminal supports the 2-step random access; and a first random access resource comprising a first physical uplink shared channel (PUSCH) resource for transmitting a message A, and the second random access parameter comprises a second random access resource comprising a second PUSCH resource for transmitting the message A different from the first PUSCH resource.
2 . The method of claim 1 , wherein the capabilities of the first terminal and the second terminal are determined based on a maximum transmission bandwidth supported by each of the first terminal and the second terminal, and the maximum transmission bandwidth supported by the first terminal is smaller than the maximum transmission bandwidth supported by the second terminal.
3 . The method of claim 1 , wherein, the first indication information indicates that the first terminal supports the 2-step random access, the first random access resource comprises a resource for the 2-step random access and a resource for a 4-step random access; or the first indication information indicates that the first terminal does not support the 2-step random access, the first random access resource comprises a resource for a 4-step random access.
4 . The method of claim 1 , wherein, the first indication information indicates that the first terminal supports the 2-step random access, the first random access parameter further comprises second indication information configured to indicate a modulation and demodulation scheme for transmitting a message B.
5 . The method of claim 1 , wherein the first random access resource further comprises: a first random access occasion (RO).
6 . The method of claim 5 , wherein the second random access resource further comprises: a second random access occasion (RO) different from the first RO.
7 . The method of claim 5 , wherein the first random access parameter further comprises third indication information configured to indicate whether the first RO supports the 2-step random access.
8 . A non-transitory computer-readable storage medium having stored therein instructions that, when executed by a processor, cause the processor to perform the method of claim 1 .
9 . The method of claim 1 , wherein the first random access parameter comprises a first uplink initial access bandwidth, the second random access parameter comprises a second uplink initial access bandwidth, and the first uplink initial access bandwidth at least partially overlaps the second uplink initial access bandwidth in a frequency domain.
10 . A communication method for random access, comprising: receiving, by a target terminal, configuration information, wherein the configuration information comprises a first random access parameter of a first terminal and a second random access parameter of a second terminal, the first terminal and the second terminal have different capabilities, and the first random access parameter is at least partially different from the second random access parameter; determining, by the target terminal, a target random access parameter based on the first random access parameter, the second random access parameter, and a capability of the target terminal; determining, by the target terminal, path loss information between the target terminal and an access network device; and determining a random access mode as a 4-step random access or a 2-step random access based on a magnitude relationship between the path loss information and a threshold corresponding to the target terminal, wherein the first random access parameter comprises: first indication information configured to indicate whether the first terminal supports the 2-step random access; and a first random access resource comprising a first physical uplink shared channel (PUSCH) resource for transmitting a message A, the second random access parameter comprises a second random access resource comprising a second PUSCH resource for transmitting the message A different from the first PUSCH resource.
11 . The method of claim 10 , wherein the capabilities of the first terminal and the second terminal are determined based on a maximum transmission bandwidth supported by each of the first terminal and the second terminal, and the maximum transmission bandwidth supported by the first terminal is smaller than the maximum transmission bandwidth supported by the second terminal.
12 . A terminal, comprising: a processor; and a memory configured to store instructions executable by the processor; wherein the processor is configured to perform the method of claim 10 .
13 . A non-transitory computer-readable storage medium having stored therein instructions that, when executed by a processor, cause the processor to perform the method of claim 10 .
14 . The method of claim 10 , wherein the first random access parameter comprises a first uplink initial access bandwidth, the second random access parameter comprises a second uplink initial access bandwidth, and the first uplink initial access bandwidth at least partially overlaps the second uplink initial access bandwidth in a frequency domain.
15 . An access network device, comprising: a processor; and a memory configured to store instructions executable by the processor; wherein the processor is configured to: generate configuration information, wherein the configuration information comprises a first random access parameter of a first terminal and a second random access parameter of a second terminal, the first terminal and the second terminal have different capabilities, and the first random access parameter is at least partially different from the second random access parameter; and send the configuration information, wherein one of the first terminal and the second terminal determines path loss information between the one of the first terminal and the second terminal and the access network device, and determines a random access mode as a 4-step random access or a 2-step random access based on a magnitude relationship between the path loss information and a threshold corresponding to the one of the first terminal and the second terminal, wherein the first random access parameter comprises: first indication information configured to indicate whether the first terminal supports the 2-step random access; and a first random access resource comprising a first physical uplink shared channel (PUSCH) resource for transmitting a message A, the second random access parameter comprises a second random access resource comprising a second PUSCH resource for transmitting the message A different from the first PUSCH resource.
16 . The access network device of claim 15 , wherein the capabilities of the first terminal and the second terminal are determined based on a maximum transmission bandwidth supported by each of the first terminal and the second terminal, and the maximum transmission bandwidth supported by the first terminal is smaller than the maximum transmission bandwidth supported by the second terminal.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application is a U.S. national phase application of International Application No. PCT/CN2020/080723, filed on Mar. 23, 2020, the content of which is hereby incorporated by reference in its entirety. TECHNICAL FIELD The disclosure relates to a field of communication technologies, and particularly to a communication method for random access, a communication apparatus for random access and a computer-readable storage medium. BACKGROUND Random access refers to a process from sending by a user a random access preamble sequence to try to access a network to establishing a basic signaling connection between the network and the user, configured to establish a data communication between a terminal and the network. In related arts, an access network device configures the same random access parameter for all terminals in the network. The effect of the random access performed by some terminals, such as the terminals with poor capabilities using the random access parameter is bad, which cannot meet requirements of the terminals. SUMMARY Embodiments of the disclosure provide a communication method for random access, communication apparatus for random access, and a computer-readable storage medium. According to a first aspect of embodiments of the disclosure, a communication method for random access is provided. The method includes generating configuration information, in which the configuration information includes a first random access parameter of a first terminal and a second random access parameter of a second terminal, the first terminal and the second terminal have different capabilities and/or types, and the first random access parameter is at least partially different from the second random access parameter; and sending the configuration information. According to a second aspect of the embodiments of the disclosure, a communication method for random access is provided. The method includes receiving configuration information, in which the configuration information includes a first random access parameter of a first terminal and a second random access parameter of a second terminal, the first terminal and the second terminal have different capabilities and/or types, and the first random access parameter is at least partially different from the second random access parameter; and determining a target random access parameter based on the first random access parameter, the second random access parameter, and a capability and/or type of a terminal. According to a third aspect of the embodiments of the disclosure, a communication apparatus for random access is provided. The apparatus includes a processor and a memory configured to store instructions executable by the processor. The processor is configured to load and execute the instructions to perform the communication method for random access according to the first aspect or the second aspect of the embodiments of the disclosure. According to a fourth aspect of the embodiments of the disclosure, a computer-readable storage medium is provided. When instructions in the computer-readable storage medium are executed by a processor, the processor is caused to perform the communication method for random access according to the first aspect or the second aspect of the embodiments of the disclosure. The technical solution provided in the embodiments of the disclosure may have at least the following beneficial effects. By configuring different random access parameters for terminals with different capabilities and/or terminals in different types, different terminals may use random access parameters suitable for themselves to perform the random access, thus ensuring random access performance of the terminal. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only, and are not restrictive of the present disclosure, as claimed. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure, and serve to explain the principles of the disclosure together with the specification. FIG. 1 is a schematic diagram illustrating a communication system according to an embodiment. FIG. 2 is a flowchart illustrating a 4-step contention-based random access procedure based on according to an embodiment. FIG. 3 is a flowchart illustrating a 2-step contention-based random access procedure based on according to an embodiment. FIG. 4 is a flowchart illustrating a communication method for random access according to an embodiment of the disclosure. FIG. 5 is a flowchart illustrating a communication method for random access according to an embodiment of the disclosure. FIG. 6 is a flowchart illustrating a communication method for random access according to an embodiment of the disclosure. FIG. 7 is a block diagram illustrating a communication apparatus for