PDCCH monitoring control method and related device

Patent metadata

Field	Value
Publication number	US-12213146-B2
Application number	US-202217655693-A
Country	US
Kind code	B2
Filing date	Mar 21, 2022
Priority date	Sep 23, 2019
Publication date	Jan 28, 2025
Grant date	Jan 28, 2025

Abstract

This disclosure provides a physical downlink control channel (PDCCH) monitoring control method and a related device. The method includes, in the event that an active bandwidth part (BWP) of a terminal has changed from a first BWP to a second BWP, determining whether to perform PDCCH monitoring during a target discontinuous reception onduration (DRX-onduration), where when a BWP switching time point for the terminal is outside an onduration, the target DRX-onduration is an onduration next to the BWP switching time point; and when the BWP switching time point for the terminal is within the onduration, the target DRX-onduration is an onduration within which the BWP switching time point falls.

First claim

What is claimed is:

1. A physical downlink control channel (PDCCH) monitoring control method, performed by a terminal and comprising:
in a case that an active bandwidth part (BWP) of the terminal has changed from a first BWP to a second BWP, determining whether to perform PDCCH monitoring during a target discontinuous reception onduration (DRX-onduration); wherein
when a BWP switching time point for the terminal is outside an onduration, the target DRX-onduration is an onduration next to the BWP switching time point; and
in a case that a first wake-up signal is not configured for the first BWP and a second wake-up signal is configured for the second BWP, the determining whether to perform PDCCH monitoring during a target DRX-onduration comprises at least one of the following:
in a case that the BWP switching time point is before a reception occasion of the second wake-up signal, determining, based on a reception status of the second wake-up signal, whether to perform PDCCH monitoring during the target DRX-onduration, or
in a case that the BWP switching time is after the reception occasion of the second wake-up signal, determining, based on a protocol-prescribed monitoring status, whether to perform PDCCH monitoring during the target DRX-onduration.

2. The method according to claim 1 , wherein in a case that a first wake-up signal is configured for the first BWP, the determining whether to perform PDCCH monitoring during a target DRX-onduration comprises at least one of the following:
in a case that the BWP switching time point is before a reception occasion of the first wake-up signal, determining, based on a protocol-prescribed monitoring status, whether to perform PDCCH monitoring during the target DRX-onduration; or
in a case that the BWP switching time point is after the reception occasion of the first wake-up signal, determining, based on a reception status of the first wake-up signal, whether to perform PDCCH monitoring during the target DRX-onduration.

3. The method according to claim 1 , wherein in a case that a first wake-up signal is configured for the first BWP and a second wake-up signal is not configured for the second BWP, the determining whether to perform PDCCH monitoring during a target DRX-onduration comprises at least one of the following:
in a case that the BWP switching time point is outside the target DRX-onduration, determining, based on a protocol-prescribed monitoring status, whether to perform PDCCH monitoring during the target DRX-onduration; or
in a case that the BWP switching time point is within the target DRX-onduration, determining, based on a reception status of the first wake-up signal, whether to perform PDCCH monitoring in a first portion of time, and determining, based on a protocol-prescribed monitoring status, whether to perform PDCCH monitoring in a second portion of time; wherein
the first portion of time is a period of time prior to the BWP switching time point in the target DRX-onduration, and the second portion of time is a period of time after the BWP switching time point in the target DRX-onduration.

4. The method according to claim 1 , wherein in a case that a first wake-up signal is not configured for the first BWP and a second wake-up signal is configured for the second BWP, the determining whether to perform PDCCH monitoring during a target DRX-onduration comprises:
determining, based on a protocol-prescribed monitoring status, whether to perform PDCCH monitoring during the target DRX-onduration.

5. The method according to claim 1 , wherein in a case that a first wake-up signal is configured for the first BWP and a second wake-up signal is configured for the second BWP, the determining whether to perform PDCCH monitoring during a target DRX-onduration comprises at least one of the following:
in a case that the BWP switching time point is before a reception occasion of the second wake-up signal, determining, based on a reception status of the second wake-up signal, whether to perform PDCCH monitoring during the target DRX-onduration;
in a case that the BWP switching time point is between the reception occasion of the second wake-up signal and a starting time point of the target DRX-onduration, determining, based on a protocol-prescribed monitoring status, whether to perform PDCCH monitoring during the target DRX-onduration.

6. The method according to claim 1 , wherein in a case that a first wake-up signal is configured for the first BWP and a second wake-up signal is configured for the second BWP, the determining whether to perform PDCCH monitoring during a target DRX-onduration comprises:
in a case that the BWP switching time point is after a reception occasion of the first wake-up signal and a reception occasion of the second wake-up signal, and before a starting time point of the target DRX-onduration, determining, based on a reception status of a target wake-up signal, whether to perform PDCCH monitoring during the target DRX-onduration; wherein
the target wake-up signal is a wake-up signal whose reception occasion is closer to the target DRX-onduration in the first wake-up signal and the second wake-up signal.

7. The method according to claim 1 , wherein in a case that the BWP switching time point is within the target DRX-onduration, the determining whether to perform PDCCH monitoring during a target DRX-onduration comprises at least one of the following:
in a case that a first wake-up signal is configured for the first BWP, determining, based on a reception status of the first wake-up signal, whether to perform PDCCH monitoring in a first portion of time, and determining, according to a target monitoring indication sent by a network device, whether to perform PDCCH monitoring in a second portion of time; or
in a case that the first wake-up signal is not configured for the first BWP, determining, based on a protocol-prescribed monitoring status, whether to perform PDCCH monitoring in the first portion of time, and determining, according to a monitoring indication sent by the network device, whether to perform PDCCH monitoring in the second portion of time; wherein
the first portion of time is a period of time prior to the BWP switching time point in the target DRX-onduration, and the second portion of time is a period of time after the BWP switching time point in the target DRX-onduration.

8. The method according to claim 7 , wherein the monitoring indication is an indication sent by the network device based on monitoring suggestion information that is reported by the terminal.

9. The method according to claim 1 , wherein in a case that the BWP switching time point is outside the target DRX-onduration, the determining whether to perform PDCCH monitoring during a target DRX-onduration comprises:
determining, according to a monitoring indication sent by a network device, whether to perform PDCCH monitoring during the target DRX-onduration.

10. The method according to claim 1 , wherein in a case that the BWP switching time point is within the target DRX-onduration, the determining whether to perform PDCCH monitoring during a target DRX-onduration comprises at least one of the following:
in a case that a first wake-up signal is configured for the first BWP, determining, based on a reception status of the first wake-up signal, whether to perform PDCCH monitoring in a first portion of time, and determining, based on a protocol-prescribed monitoring status, whether to perform PDCCH monitoring in a second portion of time; or
in a case that the first wake-up signal is not configured for the first BWP, determining, based on a protocol-prescribed monitoring status, whether to perform PDCCH monitoring during the target DRX-onduration; wherein
the first port

Assignees

• Vivo Mobile Communication Co Ltd

Inventors

• Zhong Tingting
• Chen Li
• Bao Wei

Classifications

• H04W52/0235 Primary

  where the received signal is a power saving command · CPC title

• H04W76/28

  Discontinuous transmission [DTX]; Discontinuous reception [DRX] · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04W52/0229

  where the received signal is a wanted signal · CPC title

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title