Method for determining cell scheduling mode, terminal, and network-side device

Patent metadata

Field	Value
Publication number	US-12501425-B2
Application number	US-202318153552-A
Country	US
Kind code	B2
Filing date	Jan 12, 2023
Priority date	Jul 23, 2020
Publication date	Dec 16, 2025
Grant date	Dec 16, 2025

Abstract

A method for determining a cell scheduling mode includes: receiving scheduling configuration information, where the scheduling configuration information indicates that a second cell of the terminal is scheduled by a first cell of the terminal and that the second cell is capable of self-scheduling; determining an activity state of the first cell; and determining a scheduling mode for the second cell based on the scheduling configuration information and the activity state.

First claim

What is claimed is:

1 . A method for determining a cell scheduling mode, performed by a terminal and comprising:
receiving scheduling configuration information, wherein the scheduling configuration information indicates that a second cell of the terminal is scheduled by a first cell of the terminal and that the second cell is capable of self-scheduling; determining an activity state of the first cell; and determining a scheduling mode for the second cell based on the scheduling configuration information and the activity state; wherein the first cell is a secondary cell, and the second cell is a primary cell; and the determining the scheduling mode for the second cell based on the scheduling configuration information and the activity state comprises: in a case that the first cell is in a second target state, determining that the first cell is incapable of scheduling the second cell, and that scheduling with scrambling by a specific radio network temporary identifier (RNTI) is performed in some or all UE-specific search spaces (USSs) in a first UE-specific search space group; the second target state comprises at least one of following: an inactive state; a dormancy state; or having no search space capable of scheduling the second cell on an active bandwidth part (BWP).

2 . The method according to claim 1 , wherein the scheduling configuration information further indicates at least one of following:
a common search space (CSS) configured on the second cell; the first UE-specific search space group configured on the second cell, wherein the first UE-specific search space group comprises one or more complete USSs; a second UE-specific search space group configured on the second cell, wherein the second UE-specific search space group comprises one or more incomplete UE-specific search spaces, or the second UE-specific search space group comprises one or more UE-specific search spaces that are capable of being mapped for cross-carrier scheduling; or a search space configured on the first cell.

3 . The method according to claim 2 , wherein in a case that one complete UE-specific search space is a search space capable of being mapped for cross-carrier scheduling, the complete UE-specific search space belongs to both the first UE-specific search space group and the second UE-specific search space group.

4 . The method according to claim 1 , wherein the some or all USSs are search spaces in the first UE-specific search space group, and the some USSs have a same identifier as a target search space, wherein the target search space is a search space in a currently active BWP of the first cell.

5 . The method according to claim 1 , wherein the method further comprises:
in a case that the scheduling configuration information indicates that the second cell is scheduled by the first cell, determining a behavior undesired by the terminal through pre-negotiation, wherein the behavior undesired by the terminal comprises at least one of following: receiving control signaling for deactivating the first cell; configuring a cell deactivation timer for the first cell; configuring a BWP inactivity timer for a BWP of the first cell capable of scheduling the second cell; or switching from a BWP of the first cell capable of scheduling the second cell to a BWP of the first cell incapable of scheduling the second cell.

6 . The method according to claim 1 , wherein the method further comprises:
in a case that the scheduling configuration information indicates that the second cell is scheduled by the first cell, ignore at least one of following: control signaling for deactivating the first cell; configuring a cell deactivation timer for the first cell; configuring a BWP inactivity timer for a BWP of the first cell capable of scheduling the second cell; or control information indicating switching from a BWP of the first cell capable of scheduling the second cell to a BWP of the first cell incapable of scheduling the second cell.

7 . A non-transitory computer readable storage medium, wherein the readable storage medium stores a program or instructions, and when the program or the instructions are executed by a processor, steps of the method for determining a cell scheduling mode according to claim 1 are implemented.

8 . A method for determining a cell scheduling mode, performed by a network-side device, wherein the method comprises:
transmitting scheduling configuration information, wherein the scheduling configuration information indicates that a second cell of a terminal is scheduled by a first cell of the terminal and that the second cell is capable of self-scheduling; determining an activity state of the first cell; and determining a scheduling mode for the second cell based on the scheduling configuration information and the activity state; wherein the first cell is a secondary cell, and the second cell is a primary cell; and the determining the scheduling mode for the second cell based on the scheduling configuration information and the activity state comprises: in a case that the first cell is in a second target state, determining that the first cell is incapable of scheduling the second cell, and that scheduling with scrambling by a specific radio network temporary identifier (RNTI) is performed in some or all UE-specific search spaces (USSs) in a first UE-specific search space group; the second target state comprises at least one of following: an inactive state; a dormancy state; or having no search space capable of scheduling the second cell on an active bandwidth part (BWP).

9 . A network-side device, comprising a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or the instructions, when executed by the processor, cause the network-side device to perform steps of the method for determining a cell scheduling mode according to claim 8 .

10 . A non-transitory computer readable storage medium, wherein the readable storage medium stores a program or instructions, and when the program or the instructions are executed by a processor, steps of the method for determining a cell scheduling mode according to claim 8 are implemented.

11 . The method according to claim 8 , wherein the scheduling configuration information further indicates at least one of following:
a common search space (CSS) configured on the second cell; the first UE-specific search space group configured on the second cell, wherein the first UE-specific search space group comprises one or more complete USS; a second UE-specific search space group configured on the second cell, wherein the second UE-specific search space group comprises one or more incomplete UE-specific search spaces, or the second UE-specific search space group comprises one or more UE-specific search spaces that are capable of being mapped for cross-carrier scheduling; or a search space configured on the first cell.

12 . The method according to claim 11 , wherein in a case that one complete UE-specific search space is a search space capable of being mapped for cross-carrier scheduling, the complete UE-specific search space belongs to both the first UE-specific search space group and the second UE-specific search space group.

13 . The method according to claim 8 , wherein the some USSs are search spaces in the first UE-specific search space group, and the some USSs have a same identifier as a target search space, wherein the target search space is a search space in a currently active BWP of the first cell.

14 . The method according to claim 8 , wherein the method further comprises:
in a case that t

Assignees

• Vivo Mobile Communication Co Ltd

Inventors

• Li Gen
• Pan Xueming
• Liu Siqi
• Yang Xiaodong

Classifications

• H04W72/1268 Primary

  of uplink data flows · CPC title

• H04W76/20

  Manipulation of established connections · CPC title

• H04W88/08

  Access point devices · CPC title

• H04L5/0096

  Indication of changes in allocation · CPC title

• H04W72/232

  the control data signalling from the physical layer, e.g. DCI signalling · CPC title