Communication method and device

Patent metadata

Field	Value
Publication number	US-12495465-B2
Application number	US-202118246641-A
Country	US
Kind code	B2
Filing date	Aug 3, 2021
Priority date	Sep 27, 2020
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

This disclosure relates to a communication method and a device. When a terminal device determines not to monitor DCP on a first DCP monitoring occasion, the terminal device wakes up on a first group of carriers within first DRX on duration associated with the first DCP monitoring occasion, and wakes up or sleeps on a second group of carriers within second DRX on duration associated with the first DCP monitoring occasion. The first group of carriers includes one or more carriers configured for the terminal device, a first DRX configuration is applied to the first group of carriers, the first DRX on duration corresponds to the first DRX configuration, the second group of carriers includes one or more carriers configured for the terminal device, a second DRX configuration is applied to the second group of carriers, and the second DRX on duration corresponds to the second DRX configuration.

First claim

What is claimed is:

1 . A communication method, comprising:
determining, by a terminal device, whether to monitor downlink control information with cyclic redundancy check scrambled by a power saving radio network temporary identity (DCP) on a first DCP monitoring occasion; and in response to determining not to monitor the DCP on the first DCP monitoring occasion, waking up, by the terminal device, on a first group of carriers within first discontinuous reception (DRX) on duration associated with the first DCP monitoring occasion, and waking up or sleeping, by the terminal device, on a second group of carriers within second DRX on duration associated with the first DCP monitoring occasion, wherein the first group of carriers comprises one or more carriers configured for the terminal device, the first DRX on duration corresponds to a first DRX configuration applied to the first group of carriers, the second group of carriers comprises one or more carriers configured for the terminal device, and the second DRX on duration corresponds to a second DRX configuration applied to the second group of carriers, wherein the terminal device receives configuration information from a network device that the terminal device uses to configure that, when the terminal device does not perform monitoring on the first DCP monitoring occasion, the terminal device wakes up or sleeps within the second DRX on duration associated with the first DCP monitoring occasion.

2 . The method of claim 1 , wherein the first DCP monitoring occasion is configured on the first group of carriers.

3 . The method of claim 1 , wherein the first DRX on duration is located after the first DCP monitoring occasion in time domain.

4 . The method of claim 1 , wherein determining whether to monitor DCP on the first DCP monitoring occasion comprises:
when a time domain position of the first DCP monitoring occasion is within a first DRX active time, determining not to monitor the DCP on the first DCP monitoring occasion; or when a time domain position of the first DCP monitoring occasion is not or is partially within a first DRX active time, determining to monitor the DCP on the first DCP monitoring occasion, wherein the first DRX active time corresponds to the first DRX configuration; or when a maximum quantity of sizes of downlink control information (DCI) that can be monitored is greater than or equal to a quantity of sizes of DCI that need to be monitored by the terminal device, determining to monitor the DCP on the first DCP monitoring occasion; or when a maximum quantity of sizes of DCI that can be monitored is less than a quantity of sizes of DCI that need to be monitored by the terminal device, determining not to monitor the DCP on the first DCP monitoring occasion; or when a time domain position of the first DCP monitoring occasion is within a first DRX active time, and a maximum quantity of sizes of DCI that can be monitored is greater than or equal to a quantity of sizes of DCI that need to be monitored by the terminal device, determining to monitor the DCP on the first DCP monitoring occasion; or when a time domain position of the first DCP monitoring occasion is within a first DRX active time, and a maximum quantity of sizes of DCI that can be monitored is less than a quantity of sizes of DCI that need to be monitored by the terminal device, determining not to monitor the DCP on the first DCP monitoring occasion, wherein the first DRX active time corresponds to the first DRX configuration.

5 . The method of claim 1 , wherein the method further comprises:
when the terminal device determines to monitor the DCP on the first DCP monitoring occasion, monitoring, by the terminal device, the DCP on the first DCP monitoring occasion; and sleeping or waking up, by the terminal device, on the first group of carriers within the first DRX on duration and sleeping or waking up on the second group of carriers within the second DRX on duration based on a monitoring status of the DCP.

6 . The method of claim 5 , wherein sleeping on the first group of carriers within the first DRX on duration and sleeping on the second group of carriers within the second DRX on duration based on the monitoring status of the DCP comprises:
when the terminal device receives first DCP from the network device on the first DCP monitoring occasion, and the first DCP indicates sleep, sleeping on the first group of carriers within the first DRX on duration, and sleeping, by the terminal device, on the second group of carriers within the second DRX on duration; or when the terminal device does not receive DCP from the network device on the first DCP monitoring occasion, sleeping on the first group of carriers within the first DRX on duration, and sleeping on the second group of carriers within the second DRX on duration.

7 . The method of claim 5 , wherein waking up on the first group of carriers within the first DRX on duration and waking up on the second group of carriers within the second DRX on duration based on the monitoring status of the DCP comprises:
when the terminal device receives first DCP from the network device on the first DCP monitoring occasion, and the first DCP indicates wake-up, waking up on the first group of carriers within the first DRX on duration, and waking up on the second group of carriers within the second DRX on duration; or when the terminal device receives a first DCP from the network device on the first DCP monitoring occasion, waking up on the first group of carriers within the first DRX on duration, and waking up on the second group of carriers within the second DRX on duration.

8 . The method of claim 5 , wherein the sleeping or waking up on the first group of carriers within the first DRX on duration and sleeping or waking up on the second group of carriers within the second DRX on duration based on the monitoring status of the DCP comprises:
receiving, on the first DCP monitoring occasion, first DCP from the network device, wherein the first DCP comprises first indication information and second indication information; and when the first indication information indicates a wake-up and the second indication information indicates the wake-up, waking up on the first group of carriers within the first DRX on duration, and waking up on the second group of carriers within the second DRX on duration; or when the first indication information indicates sleep and the second indication information indicates sleep, sleeping on the first group of carriers within the first DRX on duration, and sleeping on the second group of carriers within the second DRX on duration; or when the first indication information indicates a wake-up and the second indication information indicates sleep, waking up on the first group of carriers within the first DRX on duration, and sleeping on the second group of carriers within the second DRX on duration; or when the first indication information indicates sleep and the second indication information indicates a wake-up, sleeping on the first group of carriers within the first DRX on duration, and waking up on the second group of carriers within the second DRX on duration.

9 . A communication method, comprising:
in response to determining not to monitor downlink control information with cyclic redundancy check scrambled by a power saving radio network temporary identity (DCP) on a first DCP monitoring occasion configured on a first group of carriers, determining, by a terminal device, whether to monitor the DCP on a second DCP monitoring occasion configured on a second group of carriers, wherein the first group of carriers comprises one or more carriers configured for the terminal device, a first discontinuous reception (DRX) configuration is app

Assignees

• Huawei Tech Co Ltd

Inventors

• Kuang Yiru
• Xue Yifan
• Xue Lixia
• Xu Haibo

Classifications

• H04W52/0216

  using a pre-established activity schedule, e.g. traffic indication frame · CPC title

• H04W52/0235

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

• H04W52/0241

  where no transmission is received, e.g. out of range of the transmitter · CPC title

• H04W52/028

  switching on or off only a part of the equipment circuit blocks · CPC title

• H04W52/0229

  where the received signal is a wanted signal · CPC title