# US 12,225,465 B2 · Monitoring method, instruction sending method and device, and communication apparatus

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- Number: US 12,225,465 B2
- Document ID: US12225465B2
- Status: Granted
- Kind: B2
- Application number: 17/596,922
- Filed: 2019-06-26
- Published: 2022-10-06
- Granted: 2025-02-11
- Earliest claimed: 2019-06-26
- Assignees: Beijing Xiaomi Mobile Software Co., Ltd.
- Applicants: Beijing Xiaomi Mobile Software Co., Ltd.
- Inventors: Yanhua Li
- Web page: https://patentgrep.com/patent/US12225465B2

## CPC

- H04W 52/0229: {where the received signal is a wanted signal}
- H04W 36/24: Reselection being triggered by specific parameters
- H04W 36/00837: {Determination of triggering parameters for hand-off}
- H04W 36/08: Reselecting an access point
- Y02D 30/70: in wireless communication networks
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

Provided in embodiments of the present disclosure are a PDCCH monitoring method and device, an instruction sending method and device, a communication apparatus and a non-transitory computer-readable storage medium. The PDCCH monitoring method comprises: switching from a source cell to a target cell; and if a time point at which wake up signaling (WUS) within the target cell is to be monitored is missed, performing PDCCH monitoring according to a monitoring scheme on the basis of a result indicating that the WUS has been detected.

## Claims

### Claim 1

A method for monitoring a physical downlink control channel (PDCCH), comprising:
determining whether a monitoring time of Wake UP Signaling (WUS) sent before wake up period by a target cell when switching from a source cell to the target cell is missed; and
in response to determining that the monitoring time of WUS sent before wake up period by the target cell being missed when switching from the source cell to the target cell, monitoring the PDCCH in wake up period(s) within an effective range of the WUS according to the result that the WUS has been monitored, wherein a terminal does not monitor the PDCCH prior to the wake up period.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the monitoring the PDCCH in wake up periods within the effective range of the WUS comprises:
in response to the effective range of the WUS comprising one wake up period, and a wake up period corresponding to the WUS having not started, monitoring the PDCCH in the wake up period corresponding to the WUS.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the monitoring the PDCCH in wake up periods within the effective range of the WUS comprises:
in response to the effective range of the WUS comprising N wake up periods, and a current wake up period corresponding to the WUS having started, monitoring the PDCCH in M1 wake up periods that have not started corresponding to the WUS, where M1 is a positive integer less than N and greater than 1, and N is a positive integer greater than 2.

### Claim 4 (depends on 1)

The method according to claim 1, wherein the monitoring the PDCCH in wake up periods within the effective range of the WUS comprises:
in response to the effective range of the WUS comprising N wake up periods, and a current wake up period corresponding to the WUS having not started, monitoring the PDCCH in M2 wake up periods that have not started corresponding to the WUS, where M2 is a positive integer less than or equal to N and greater than 1, and N is a positive integer equal to or greater than 2.

### Claim 5

A communication device, comprising:
a transceiver,
a memory, and
a processor, connected to the transceiver and the memory respectively, configured to control transmission of the transceiver and to implement a method for monitoring a physical downlink control channel (PDCCH) by executing computer-executable instructions stored on the memory, the method comprising:
determining whether a monitoring time of Wake UP Signaling (WUS) sent before wake up period by a target cell when switching from a source cell to the target cell is missed; and
in response to determining that a monitoring time of WUS sent before wake up period by the target cell being missed when switching from the source cell to the target cell, monitoring the PDCCH in wake up period(s) within an effective range of the WUS according to the result that the WUS has been monitored, wherein the communication device does not monitor the PDCCH prior to the wake up period.