# US 12,114,186 B2 · Channel monitoring method and device

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- Number: US 12,114,186 B2
- Document ID: US12114186B2
- Status: Granted
- Kind: B2
- Application number: 17/372,293
- Filed: 2021-07-09
- Published: 2021-10-28
- Granted: 2024-10-08
- Earliest claimed: 2019-01-11
- Assignees: Huawei Technologies Co., Ltd.
- Applicants: Huawei Technologies Co., Ltd.
- Inventors: Lixia Xue; Zheng Chen
- Web page: https://patentgrep.com/patent/US12114186B2

## CPC

- H04W 24/08: Testing, {supervising or monitoring} using real traffic
- H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame}
- H04W 52/0235: {where the received signal is a power saving command}
- H04W 76/28: Discontinuous transmission [DTX]; Discontinuous reception [DRX]
- H04W 68/005: {Transmission of information for alerting of incoming communication}
- 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

A channel monitoring method and a device are described. The method includes: monitoring, by a terminal device, a first signal on n transmission occasions in a monitoring periodicity; and when the terminal device detects the first signal on at least one of the n transmission occasions, monitoring, by the terminal device, a downlink control channel and/or a second signal in a first time period in the monitoring periodicity; or when the terminal device does not detect the first signal on the n transmission occasions, skipping, by the terminal device, monitoring a downlink control channel in the monitoring periodicity.

## Claims

### Claim 1

A channel monitoring method carried out by a terminal device, comprising:
monitoring a first signal on n transmission occasions in a monitoring periodicity, wherein n is a positive integer; and
monitoring, in accordance with detecting the first signal during at least one of the n transmission occasions, a downlink control channel and/or a second signal in a first time period in the monitoring periodicity,
wherein timing for the first time period is performed by using a first timer, and timing duration of the first timer is a length of the first time period, and
wherein the method further comprises:
resetting, in accordance with detecting the second signal during monitoring the downlink control signal, the first timer and monitoring the downlink control channel in a timing duration of the reset first timer; or
resetting, in accordance with detecting the second signal in the timing duration of the first timer and the second signal indicates to continue monitoring the downlink control channel, the first timer and monitoring the downlink control channel in a timing duration of the first timer after the resetting the first timer.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the method further comprises:
monitoring, in accordance with not detecting the second signal during monitoring the second signal in the timing duration of the first timer, the downlink control channel.

### Claim 3 (depends on 1)

The method according to claim 1, further comprising:
resetting, in accordance with detecting the second signal in the timing duration of the first timer, the first timer and monitoring the downlink control channel in timing duration of the reset first timer; or
resetting, in accordance with detecting the second signal in the timing duration of the first timer and the second signal indicates to monitor the downlink control channel, the first timer and monitoring the downlink control channel in timing duration of the reset first timer.

### Claim 4

A channel monitoring method carried out by a network device, the method comprising:
determining to perform data scheduling on a terminal device in a monitoring periodicity;
sending a first signal on n transmission occasions in the monitoring periodicity; and
sending a downlink control channel and/or sending a second signal in a first time period in the monitoring periodicity,
wherein the first signal is used to indicate data scheduling,
wherein n is a positive integer,
wherein timing for the first time period is performed by using a first timer, and timing duration of the first timer is a length of the first time period, and
wherein the method further comprises:
resetting, in accordance with sending the second signal in the timing duration of the first timer, the first timer and sending the downlink control channel in timing duration of the reset first timer; or
resetting, in accordance with sending the second signal in the timing duration of the first timer and the second signal indicates to continue monitoring the downlink control channel, the first timer and sending the downlink control channel in timing duration of the reset first timer.

### Claim 5 (depends on 4)

The method according to claim 4, further comprising:
sending, in accordance with not sending the second signal in the timing duration of the first timer, the downlink control channel.

### Claim 6

A terminal device, comprising:
a processor, and
a non-transient computer readable medium including computer-executable instructions that, when executed by the processor, facilitate carrying out a method including:
monitoring a first signal on n transmission occasions in a monitoring periodicity, wherein n is a positive integer; and
monitoring, in accordance with detecting the first signal during at least one of the n transmission occasions, a downlink control channel and/or a second signal in a first time period in the monitoring periodicity,
wherein timing for the first time period is performed by using a first timer, and timing duration of the first timer is a length of the first time period, and
wherein the method further comprises:
resetting, in accordance with detecting the second signal during monitoring the downlink control signal, the first timer and monitoring the downlink control channel in a timing duration of the reset first timer; or
resetting, in accordance with detecting the second signal in the time duration of the first timer and the second signal indicates to continue monitoring the downlink control channel, the first timer and monitoring the downlink control channel in a timing duration of the first timer after resetting the first timer.

### Claim 7 (depends on 6)

The terminal device according to claim 6, wherein the method further comprises:
monitoring, in accordance with not detecting the second signal during monitoring the second signal in the timing duration of the first timer, the downlink control channel.

### Claim 8 (depends on 6)

The terminal device according to claim 6, wherein the method further comprises:
resetting, in accordance with detecting the second signal in the timing duration of the first timer, the first timer and monitoring the downlink control channel in timing duration of the reset first timer; or
resetting, in accordance with detecting the second signal in the timing duration of the first timer and the second signal indicates to monitor the downlink control channel, the first timer and monitoring the downlink control channel in timing duration of the reset first timer.

### Claim 9

A network device, comprising:
a processor, and
a non-transient computer readable medium including computer-executable instructions that, when executed by the processor, facilitate carrying out a method including:
determining to perform data scheduling on a terminal device in a monitoring periodicity;
sending a first signal on n transmission occasions in the monitoring periodicity; and
sending a downlink control channel and/or sending a second signal in a first time period in the monitoring periodicity,
wherein the first signal is used to indicate data scheduling,
wherein n is a positive integer,
wherein timing for the first time period is performed by using a first timer, and timing duration of the first timer is a length of the first time period, and
wherein the method further comprises:
resetting, in accordance with sending the second signal in the timing duration of the first timer, the first timer and sending the downlink control channel in timing duration of the reset first timer; or
resetting, in accordance with sending the second signal in the timing duration of the first timer and the second signal indicates to continue monitoring the downlink control channel, the first timer and sending the downlink control channel in timing duration of the reset first timer.

### Claim 10 (depends on 9)

The network device according to claim 9, wherein the method further comprises:
sending, in accordance with not sending the second signal in the timing duration of the first timer, the downlink control channel.