US-20260129626-A1 - RESOURCE CONFIGURATION METHOD AND DEVICE, RESOURCE DETERMINATION METHOD AND DEVICE, COMMUNICATION DEVICE, AND STORAGE MEDIUM

US20260129626A1US 20260129626 A1US20260129626 A1US 20260129626A1US-20260129626-A1

Abstract

A resource configuration method is performed by a base station which configures an initial UL BWP of a first type of terminal as a first initial UL BWP and configures an initial UL BWP of a second type of terminal as a second initial UL BWP. The resource configuration method includes: receiving a random access message MsgA sent by a terminal; not correctly acquiring a PUSCH in the MsgA, determining resource allocation information according to configuration information of the first initial UL BWP; and sending a fallback RAR to the terminal. The fallback RAR carries the resource allocation information and is used to indicate the terminal to send a random access message Msg3 to the base station according to the resource allocation information.

Inventors

Qin MU

Assignees

BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.

Dates

Publication Date: 20260507
Application Date: 20211101

Claims (20)

1 . A resource configuration method, performed by a base station which configures an initial uplink bandwidth part (initial UL BWP) of a first type of terminal as a first initial UL BWP and configures an initial UL BWP of a second type of terminal as a second initial UL BWP, comprising: receiving a random access message MsgA sent by a terminal; not correctly acquiring a physical uplink shared channel (PUSCH) in the MsgA, determining resource allocation information according to configuration information of the first initial UL BWP; and sending a fallback random access response (fallback RAR) to the terminal, wherein the fallback RAR carries the resource allocation information and is used to indicate the terminal to send a random access message Msg3 to the base station according to the resource allocation information.
2 . The method according to claim 1 , wherein the first type of terminal comprises a non-reduced capability (RedCap) terminal, and the second type of terminal comprises a RedCap terminal.
3 . The method according to claim 1 , wherein the configuration information of the first initial UL BWP comprises at least one of: a bandwidth size of the first initial UL BWP; a subcarrier spacing (SCS) of the first initial UL BWP; or positions of physical resource blocks (PRBs) of the first initial UL BWP.
4 . The method according to claim 3 , wherein determining the resource allocation information according to the configuration information of the first initial UL BWP comprises: determining a frequency domain resource to be indicated to the terminal for transmitting the Msg3; and processing information of the frequency domain resource according to the bandwidth size of the first initial UL BWP, the SCS of the first initial UL BWP, and the positions of the PRBs of the first initial UL BWP to obtain the resource allocation information.
5 . The method according to claim 3 , wherein determining the resource allocation information according to the configuration information of the first initial UL BWP comprises: determining a time domain resource to be indicated to the terminal for transmitting the Msg3; and processing information of the time domain resource according to the SCS of the first initial UL BWP to obtain the resource allocation information.
6 . The method according to claim 3 , wherein determining the resource allocation information according to the configuration information of the first initial UL BWP comprises: determining a frequency hopping transmission scheme to be indicated to the terminal for transmitting the Msg3; and processing the frequency hopping transmission scheme according to the bandwidth size of the first initial UL BWP, the SCS of the first initial UL BWP, and the positions of the PRBs of the first initial UL BWP to obtain the resource allocation information.
7 . A resource determination method, performed by a terminal, comprising: sending a MsgA to a base station, receiving a random access response (RAR) sent by the base station, wherein the base station configures an initial UL BWP of a first type of terminal as a first initial UL BWP and configures an initial UL BWP of a second type of terminal as a second initial UL BWP, and the RAR received is a fallback RAR; acquiring resource allocation information from the fallback RAR, and analyzing the resource allocation information according to configuration information of the first initial UL BWP to determine a transmission resource; and sending a Msg3 to the base station on the transmission resource.
8 . The method according to claim 7 , wherein the first type of terminal comprises a non-reduced capability (RedCap) terminal, and the second type of terminal comprises a RedCap terminal.
9 . The method according to claim 7 , wherein the configuration information of the first initial UL BWP comprises at least one of: a bandwidth size of the first initial UL BWP; a subcarrier spacing (SCS) of the first initial UL BWP; or positions of physical resource blocks (PRBs) of the first initial UL BWP.
10 . The method according to claim 9 , wherein analyzing the resource allocation information according to the configuration information of the first initial UL BWP to determine the transmission resource comprises: analyzing the resource allocation information according to the bandwidth size of the first initial UL BWP, the SCS of the first initial UL BWP, and the positions of the PRBs of the first initial UL BWP to determine a frequency domain resource for transmitting the Msg3.
11 . The method according to claim 9 , wherein analyzing the resource allocation information according to the configuration information of the first initial UL BWP to determine the transmission resource comprises: analyzing the resource allocation information according to the SCS of the first initial UL BWP to determine a time domain resource for transmitting the Msg3.
12 . The method according to claim 9 , wherein analyzing the resource allocation information according to the configuration information of the first initial UL BWP to determine the transmission resource comprises: analyzing the resource allocation information according to the bandwidth size of the first initial UL BWP, the SCS of the first initial UL BWP, and the positions of the PRBs of the first initial UL BWP to determine a frequency hopping transmission scheme for transmitting the Msg3.
13 . A resource base station, wherein the base station configures an initial uplink bandwidth part (initial UL BWP) of a first type of terminal as a first initial UL BWP and configures an initial UL BWP of a second type of terminal as a second initial UL BWP, and the base station comprises: one or more processors configured to: receive a random access message MsgA sent by a terminal; not correctly acquire a physical uplink shared channel (PUSCH) in the MsgA, determine resource allocation information according to configuration information of the first initial UL BWP; and send a fallback random access response (fallback RAR) to the terminal, wherein the fallback RAR carries the resource allocation information and is used to indicate the terminal to send a random access message Msg3 to the base station according to the resource allocation information.
14 . A terminal, comprising: one or more processors configured to performed the resource determination method according to claim 7 .
15 . A communication device, comprising: a processor; and a memory for storing a computer program; wherein when the computer program is executed by the processor, the resource configuration method according to claim 1 is implemented.
16 . A communication device, comprising: a processor; and a memory for storing a computer program; wherein when the computer program is executed by the processor, the resource determination method according to claim 7 is implemented.
17 . A non-transitory computer-readable storage medium for storing a computer program that, when executed by a processor, causes steps in the resource configuration method according to claim 1 to be implemented.
18 . A non-transitory computer-readable storage medium for storing a computer program that, when executed by a processor, causes steps in the resource determination method according to claim 7 to be implemented.
19 . The base station according to claim 13 , wherein the one or more processors is configured to: determine a frequency domain resource to be indicated to the terminal for transmitting the Msg3; and process information of the frequency domain resource according to a bandwidth size of the first initial UL BWP, an SCS of the first initial UL BWP, and positions of PRBs of the first initial UL BWP to obtain the resource allocation information; determine a time domain resource to be indicated to the terminal for transmitting the Msg3; and process information of the time domain resource according to an SCS of the first initial UL BWP to obtain the resource allocation information, or determine a frequency hopping transmission scheme to be indicated to the terminal for transmitting the Msg3; and process the frequency hopping transmission scheme according to a bandwidth size of the first initial UL BWP, an SCS of the first initial UL BWP, and positions of PRBs of the first initial UL BWP to obtain the resource allocation information.
20 . The terminal according to claim 14 , wherein the one or more processors is configured to: analyze the resource allocation information according to a bandwidth size of the first initial UL BWP, an SCS of the first initial UL BWP, and positions of PRBs of the first initial UL BWP to determine a frequency domain resource for transmitting the Msg3; analyze the resource allocation information according to an SCS of the first initial UL BWP to determine a time domain resource for transmitting the Msg3; or analyze the resource allocation information according to a bandwidth size of the first initial UL BWP, an SCS of the first initial UL BWP, and positions of PRBs of the first initial UL BWP to determine a frequency hopping transmission scheme for transmitting the Msg3.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application is a U.S. national phase application of International Application No. PCT/CN2021/127998, filed Nov. 1, 2021, the entire contents of which are incorporated herein by reference. FIELD The present disclosure relates to the technical field of mobile communication, and more particularly, to a resource configuration method, a resource determination method, a resource configuration apparatus, a resource determination apparatus, a communication device, and a computer readable storage medium. BACKGROUND With the development of the communication technology, in order to adapt to new communication scenarios, a reduced capability terminal is provided, which is called a RedCap terminal for short, and may also be referred to as an NR-lite terminal. This kind of terminal generally is intended to meet conditions like low cost, low complexity, a certain degree of enhanced coverage, power saving, etc. Due to certain differences between RedCap terminals and non-RedCap terminals, when accessing a network, in order to enable the network to determine the type of the terminal accessed, the RedCap terminal may carry information indicating its type when initiating a random access. For example, when initiating a two-step random access, a terminal may perform an early indication through a physical uplink shared channel (PUSCH) in a random access message MsgA, to indicate whether the terminal initiating the random access is a RedCap terminal. If a base station does not correctly acquire the PUSCH in the MsgA, it can send a fallback random access response (fallback RAR) carrying configuration information to the terminal, so that the terminal sends a random access message Msg3 to the base station according to the configuration information. The Msg3 is a third message in a four-step random access process, and the content carried therein is the same as or similar to the PUSCH in the MsgA. However, in some scenarios, the base station cannot determine how to configure the terminal to send the Msg3. SUMMARY According to a first aspect of embodiments of the present disclosure, there is provided a resource configuration method, which is performed by a base station, and the base station configures an initial uplink bandwidth part (initial UL BWP) of a first type of terminal as a first initial UL BWP and configures an initial UL BWP of a second type of terminal as a second initial UL BWP. The resource configuration method includes: receiving a random access message MsgA sent by a terminal; in response to not correctly acquiring a physical uplink shared channel (PUSCH) in the MsgA, determining resource allocation information according to configuration information of the first initial UL BWP; and sending a fallback random access response (fallback RAR) to the terminal. The fallback RAR carries the resource allocation information and is used to indicate the terminal to send a random access message Msg3 to the base station according to the resource allocation information. According to a second aspect of embodiments of the present disclosure, there is provided a resource determination method, which is performed by a terminal. The resource determination method includes: sending a MsgA to a base station, receiving a random access response (RAR) sent by the base station, in which the base station configures an initial UL BWP of a first type of terminal as a first initial UL BWP and configures an initial UL BWP of a second type of terminal as a second initial UL BWP; in response to the RAR received being a fallback RAR, acquiring resource allocation information from the fallback RAR, and analyzing the resource allocation information according to configuration information of the first initial UL BWP to determine a transmission resource; and sending a Msg3 to the base station with the transmission resource. According to a third aspect of embodiments of the present disclosure, there is provided a base station, and the base station configures an initial uplink bandwidth part (initial UL BWP) of a first type of terminal as a first initial UL BWP and configures an initial UL BWP of a second type of terminal as a second initial UL BWP. The base station includes: one or more processors configured to: receive a random access message MsgA sent by a terminal; in response to not correctly acquiring a physical uplink shared channel (PUSCH) in the MsgA, determine resource allocation information according to configuration information of the first initial UL BWP; and send a fallback random access response (fallback RAR) to the terminal. The fallback RAR carries the resource allocation information and is used to indicate the terminal to send a random access message Msg3 to the base station according to the resource allocation information. According to a fourth aspect of embodiments of the present disclosure, there is provided a terminal, which includes: one or more processors configured to: send a MsgA to a base stat