IP Library Granted Patent US 12,621,865
Granted Patent B2
US 12,621,865 · App. 18/005,295 · Granted May 5, 2026

Random access parameter processing method and apparatus, and storage medium

Inventor: Qin Mu (Beijing, CN)
Assignee: Beijing Xiaomi Mobile Software Co., Ltd.
H04W74/0833
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,621,865
App. No.
18/005,295
Granted
May 5, 2026
Kind
B2
Abstract

A method for processing a random access parameter is performed by a first type user equipment (UE), and includes: determining a first parameter for random access of the first type UE, wherein the first parameter for random access of the first type UE is not completely the same as or completely different from a second parameter for random access of a second type UE, and a type of the first type UE is different from a type of the second type UE.

Claims (83)

1 . A method for processing a random access parameter, performed by a first type user equipment (UE), the method comprising:

determining a first parameter for random access of the first type UE, wherein the first parameter for random access of the first type UE is not completely the same as or completely different from a second parameter for random access of a second type UE, and a type of the first type UE is different from a type of the second type UE;

sending the first parameter to a network device; and

receiving, from the network device, a physical downlink control channel (PDCCH) corresponding to a random access response (RAR), wherein the PDCCH corresponding to the RAR is identified based on the first parameter.

2 . The method of claim 1 , wherein a UE capability of the first type UE is lower than a UE capability of the second type UE; and

the first parameter for random access of the first type UE is configured to enable the network device to determine an initial uplink (UL) bandwidth part (BWP) corresponding to the first type UE, wherein the initial UL BWP corresponding to the first type UE is different from an initial UL BWP corresponding to the second type UE.

3 . The method of claim 1 , wherein determining the first parameter for random access of the first type UE comprises:

determining the first parameter for random access of the first type UE based on at least one of: a parameter related to the second type UE, or a parameter related to the first type UE.

4 . The method of claim 3 , wherein the parameter related to the second type UE comprises any one of:

a frequency division multiplexing (FDM) parameter corresponding to the second type UE; or

a supplementary uplink (SUL) parameter corresponding to the second type UE; and

wherein the parameter related to the first type UE comprises any one of:

a supplementary uplink (SUL) parameter corresponding to the first type UE;

an offset parameter corresponding to the first type UE; or

a preset parameter corresponding to the first type UE.

5 . The method of claim 4 , further comprising at least one of:

determining the FDM parameter corresponding to the second type UE based on remaining minimum system information (RMSI) of the second type UE;

determining the FDM parameter corresponding to the second type UE based on a communication protocol;

determining the FDM parameter corresponding to the second type UE based on a received signaling, wherein the signaling at least comprises one of a field domain or an identifier for indicating the FDM parameter corresponding to the second type UE; or

determining the FDM parameter corresponding to the second type UE based on a pre-configuration parameter.

6 . The method of claim 4 , further comprising at least one of:

determining the preset parameter based on a communication protocol;

determining the preset parameter based on a pre-configuration parameter; or

determining the preset parameter based on a received signaling, wherein the signaling at least comprises one of a field domain or an identifier for indicating the preset parameter.

7 . The method of claim 4 , further comprising at least one of:

determining the offset parameter based on a communication protocol;

determining a candidate offset parameter set based on the communication protocol; and determining at least one candidate offset parameter from the candidate offset parameter set based on a received signaling as the offset parameter, wherein the signaling at least comprises one of a field domain or an identifier for indicating the offset parameter; or

determining the offset parameter based on the received signaling, wherein the signaling at least comprises one of a field domain or an identifier for indicating the preset parameter.

8 . The method of claim 1 , wherein determining the first parameter for random access of the first type UE comprises one of:

determining the first parameter for random access of the first type UE based on a frequency division multiplexing (FDM) parameter corresponding to the second type UE;

determining the first parameter for random access of the first type UE based on an FDM parameter corresponding to the second type UE and a supplementary uplink (SUL) parameter corresponding to the first type UE;

determining the first parameter for random access of the first type UE based on an FDM parameter corresponding to the second type UE and a SUL parameter corresponding to the second type UE;

determining the first parameter for random access of the first type UE based on an FDM parameter corresponding to the second type UE, a SUL parameter corresponding to the second type UE and a SUL parameter corresponding to the first type UE;

determining an offset parameter, and determining the first parameter for random access of the first type UE based on the offset parameter;

determining an offset parameter, and determining the first parameter for random access of the first type UE based on the offset parameter and a preset parameter; or

determining an offset parameter, and determining the first parameter for random access of the first type UE based on the offset parameter and an FDM parameter corresponding to the second type UE.

9 . The method of claim 8 , further comprising at least one of:

determining the FDM parameter corresponding to the second type UE based on remaining minimum system information (RMSI) of the second type UE;

determining the FDM parameter corresponding to the second type UE based on a communication protocol;

determining the FDM parameter corresponding to the second type UE based on a pre-configuration parameter; or

determining the FDM parameter corresponding to the second type UE based on a received signaling, wherein the signaling at least comprises one of a field domain or an identifier for indicating the FDM parameter corresponding to the second type UE.

10 . A method for processing a random access parameter, performed by a network device, the method comprising:

receiving a first parameter sent by a first type user equipment (UE), wherein the first parameter is configured for random access of the first type UE, the first parameter for random access of the first type UE is not completely the same as or completely different from a second parameter for random access of a second type UE, and a type of the first type UE is different from a type of the second type UE; and

sending, to the first type UE, a physical downlink control channel (PDCCH) corresponding to a random access response (RAR), wherein the PDCCH corresponding to the RAR is identified based on the first parameter.

11 . The method of claim 10 , wherein a UE capability of the first type UE is lower than a UE capability of the second type UE; and

the first parameter for random access of the first type UE is configured to enable the network device to determine an initial uplink (UL) bandwidth part (BWP) corresponding to the first type UE, wherein the initial UL BWP corresponding to the first type UE is different from an initial UL BWP corresponding to the second type UE.

12 . The method of claim 10 , wherein the first parameter for random access of the first type UE is determined based on at least one of:

a parameter related to the second type UE, or

a parameter related to the first type UE.

13 . The method of claim 12 , wherein the parameter related to the second type UE comprises any one of:

a frequency division multiplexing (FDM) parameter corresponding to the second type UE; or

a supplementary uplink (SUL) parameter corresponding to the second type UE; and

wherein the parameter related to the first type UE comprises any one of:

a supplementary uplink (SUL) parameter corresponding to the first type UE;

an offset parameter corresponding to the first type UE; or

a preset parameter corresponding to the first type UE.

14 . The method of claim 13 , wherein the FDM parameter corresponding to the second type UE is determined based on at least one of:

remaining minimum system information (RMSI) of the second type UE;

a communication protocol; or

a received signaling, wherein the signaling at least comprises one of a field domain or an identifier for indicating the FDM parameter corresponding to the second type UE.

15 . The method of claim 13 , wherein the preset parameter is determined based on at least one of:

a communication protocol;

a pre-configuration parameter; or

a received signaling, wherein the signaling at least comprises one of a field domain or an identifier for indicating the preset parameter.

16 . The method of claim 13 , wherein the offset parameter is determined based on at least one of:

a communication protocol;

at least one candidate offset parameter from a candidate offset parameter set based on a received signaling as the offset parameter, wherein the candidate offset parameter set is determined based on the communication protocol, and the signaling at least comprises one of a field domain or an identifier for indicating the offset parameter; or

the received signaling, wherein the signaling at least comprises one of a field domain or an identifier for indicating the preset parameter.

17 . The method of claim 10 , wherein determining the first parameter for random access of the first type UE comprises one of:

determining the first parameter for random access of the first type UE based on a frequency division multiplexing (FDM) parameter corresponding to the second type UE;

determining the first parameter for random access of the first type UE based on an FDM parameter corresponding to the second type UE and a supplementary uplink (SUL) parameter corresponding to the first type UE;

determining the first parameter for random access of the first type UE based on an FDM parameter corresponding to the second type UE and a SUL parameter corresponding to the second type UE;

determining the first parameter for random access of the first type UE based on an FDM parameter corresponding to the second type UE, a SUL parameter corresponding to the second type UE and a SUL parameter corresponding to the first type UE;

determining an offset parameter, and determining the first parameter for random access of the first type UE based on the offset parameter;

determining an offset parameter, and determining the first parameter for random access of the first type UE based on the offset parameter and a preset parameter; or

determining an offset parameter, and determining the first parameter for random access of the first type UE based on the offset parameter and an FDM parameter corresponding to the second type UE.

18 . A first type user equipment (UE), comprising:

a processor; and

a memory configured to store instructions executable by the processor;

wherein the processor is configured to:

determine a first parameter for random access of the first type UE, wherein the first parameter for random access of the first type UE is not completely the same as or completely different from a second parameter for random access of a second type UE, and a type of the first type UE is different from a type of the second type UE;

send the first parameter to a network device; and

receive, from the network device, a physical downlink control channel (PDCCH) corresponding to a random access response (RAR), wherein the PDCCH corresponding to the RAR is identified based on the first parameter.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 12, 2023
From: MU, QIN
To: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
Reel/Frame 062362/0543 →
Continuity (1)
Related Publication 20230262777A1 · Aug 17, 2023
References Cited (16)
US 12160894B2 · Futaki · 2024 [cited by examiner]
US 20110287776A1 · Vujcic · 2011 [cited by examiner]
US 20170245307A1 · Liu · 2017 [cited by examiner]
US 20220287102A1 · Futaki · 2022 [cited by examiner]
US 20230262777A1 · Mu · 2023 [cited by examiner]
US 20250048444A1 · Futaki · 2025 [cited by examiner]
CN 104488346A · 2015 [cited by applicant]
WO WO2018210890A1 · 2018 [cited by applicant]
First Office Action issued by the State Intellectual Property Office of People's Republic of China on Nov. 25, 2024, in corresponding Application No. CN 202080001701.0, 16 pages. [cited by applicant]
International Search Report and Written Opinion of International Application No. PCT/CN2020/103880, mailed Mar. 22, 2021, 14 pages. [cited by applicant]
LG Electronics; Discussion on potential UE complexity reduction features, 3GPP TSG RAN WG1 Meeting #101, R1-2004021, e-meeting, May 25-Jun. 5, 2020, 8 pages. [cited by applicant]
European Patent Office, Extended European Search Report issued in Application No. 20946028.6 dated Feb. 16, 2024, 13 pages. [cited by applicant]
Examination report for India Application No. 202347006557, dated Mar. 13, 2024, 7 pages. [cited by applicant]
Samsung, “RACH procedure considering flexible UE bandwidth,” 3GPP TSG RAN WG1 Meeting #87, R1-1612469, Reno, USA, Nov. 14-18, 2016, 3 pages. [cited by applicant]
CMCC, “Discussion on UE complexity reduction”, R1-2003966, 3GPP TSG RAN WG1 #101, e-Meeting, May 25-Jun. 5, 2020, 5 pages. [cited by applicant]
The Second Office Action for China Application No. 202080001701.0, dated Mar. 31, 2025, 17 pages. [cited by applicant]