# US 12,114,263 B2 · Method and device for discontinuous reception

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- Number: US 12,114,263 B2
- Document ID: US12114263B2
- Status: Granted
- Kind: B2
- Application number: 17/503,193
- Filed: 2021-10-15
- Published: 2022-02-03
- Granted: 2024-10-08
- Earliest claimed: 2019-04-26
- Assignees: Guangdong Oppo Mobile Telecommunications Corp., Ltd.
- Applicants: Guangdong Oppo Mobile Telecommunications Corp., Ltd.
- Inventors: Cong Shi; Shukun Wang; Weijie Xu
- Web page: https://patentgrep.com/patent/US12114263B2

## CPC

- H04W 52/0232: {according to average transmission signal activity}
- H04L 1/1819: {with retransmission of additional or different redundancy}
- H04L 1/1851: {using multiple timers}
- H04L 1/1864: {ARQ related signaling (H04L1/1607 takes precedence)}
- H04L 1/1883: {using multiple timers}
- H04L 1/1896: {ARQ related signaling}
- H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame}
- H04W 52/0229: {where the received signal is a wanted signal}
- H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX]
- 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)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- 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

A method and device for discontinuous reception are provided, and can further reduce a power consumption of a terminal device in a DRX process. The method includes: detecting, by a terminal device, a wakeup signal in a first time period; starting a drx-onDurationTimer in a DRX cycle after the first time period if the terminal device detects the wakeup signal; and/or, not starting the drx-onDurationTimer in the DRX cycle after the first time period if the terminal device does not detect the wakeup signal.

## Claims

### Claim 1

A method for discontinuous reception (DRX), comprising:
detecting, by a terminal device, a wakeup signal in a first time period;
wherein a DRX On Duration timer meets at least one of:
in a case that the terminal device detects the wakeup signal and the wakeup signal is used to indicate that the terminal device starts the DRX On Duration timer in a DRX cycle after the first time period, or the terminal device does not detect the wakeup signal, the DRX On Duration timer is started in the DRX cycle after the first time period; and
in a case that the terminal device detects the wakeup signal and the wakeup signal is used to indicate that the terminal device does not start the DRX On Duration timer in the DRX cycle after the first time period, the DRX On Duration timer is not started in the DRX cycle after the first time period.

### Claim 2 (depends on 1)

The method according to claim 1, further comprising at least one of:
continuing running a DRX inactivity timer running in the first time period in a case that the terminal device detects the wakeup signal, the wakeup signal indicates that the terminal device starts the DRX On Duration timer in the DRX cycle after the first time period, and the DRX inactivity timer has not stopped;
continuing running the DRX inactivity timer running in the first time period in a case that the terminal device does not detect the wakeup signal and the DRX inactivity timer has not stopped; and,
continuing running or stopping the DRX inactivity timer running in the first time period in a case that the terminal device detects the wakeup signal, the wakeup signal indicates that the terminal device does not start the DRX On Duration timer in the DRX cycle after the first time period, and the DRX inactivity timer has not been stopped.

### Claim 3 (depends on 2)

The method according to claim 2, wherein first information and second information are comprised in the wakeup signal, wherein the first information is used to indicate whether the terminal device starts the DRX On Duration timer in the DRX cycle after the first time period, and the second information is used to indicate whether to continue running or stop the DRX inactivity timer running in the first time period.

### Claim 4 (depends on 1)

The method according to claim 1, further comprising:
continuing running, by the terminal device, other DRX timers running in the first time period in a case that the other DRX timers have not stopped;
wherein the other DRX timers comprise at least one of the following: a DRX downlink retransmission timer, a DRX uplink retransmission timer, a DRX short cycle timer, a DRX downlink hybrid automatic repeat request (HARQ) round-trip time timer, a DRX uplink HARQ round-trip time timer, and a random access contention resolution timer.

### Claim 5 (depends on 1)

The method according to claim 1, further comprising:
continuing keeping, by the terminal device, an activate time after sending a scheduling request (SR) in a case that the terminal device is in the activate time in the first time period.

### Claim 6 (depends on 1)

The method according to claim 1, further comprising:
receiving, by the terminal device, indication information sent by a network device, wherein the indication information is used to indicate the first time period.

### Claim 7

A terminal device, comprising:
a processor, configured to detect a wakeup signal in a first time period;
wherein the processor is further configured to execute at least one of:
starting a discontinuous reception (DRX) On Duration timer in a DRX cycle after the first time period in a case that the wakeup signal is detected and the wakeup signal is used to indicate that the terminal device starts the DRX On Duration timer in the DRX cycle after the first time period, or the terminal device does not detect the wakeup signal; and
not starting the DRX On Duration timer in the DRX cycle after the first time period in a case that the wakeup signal is detected and the wakeup signal is used to indicate that the terminal device does not start the DRX On Duration timer in the DRX cycle after the first time period.

### Claim 8 (depends on 7)

The terminal device according to claim 7, wherein the processor is further configured to execute at least one of:
continuing running a DRX inactivity timer running in the first time period in a case that the wakeup signal is detected, the wakeup signal indicates that the terminal device starts the DRX On Duration timer in the DRX cycle after the first time period, and the DRX inactivity timer has not stopped;
continuing running the DRX inactivity timer running in the first time period in a case that no wakeup signal is detected and the DRX inactivity timer has not stopped; and
continuing running or stopping the DRX inactivity timer running in the first time period in a case that the wakeup signal is detected, the wakeup signal indicates that the terminal device does not start the DRX On Duration timer in the DRX cycle after the first time period, and the DRX inactivity timer has not stopped.

### Claim 9 (depends on 8)

The terminal device according to claim 8, wherein first information and second information are comprised in the wakeup signal, wherein the first information is used to indicate whether the terminal device starts the DRX On Duration timer in the DRX cycle after the first time period, and the second information is used to indicate whether to continue running or stop the DRX inactivity timer running in the first time period.