# US 11,310,741 B2 · Wake-up signal related monitoring of wireless data communication

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- Number: US 11,310,741 B2
- Document ID: US11310741B2
- Status: Granted
- Kind: B2
- Application number: 16/637,744
- Filed: 2018-08-13
- Published: 2020-07-02
- Granted: 2022-04-19
- Earliest claimed: 2017-08-18
- Assignees: Sony Group Corporation
- Applicants: Sony Corporation
- Inventors: Daniel Lönnblad; Anders Mellqvist; Rickard Ljung
- Web page: https://patentgrep.com/patent/US11310741B2

## CPC

- H04W 52/0235: {where the received signal is a power saving command}
- 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 52/0238: {where the received signal is an unwanted signal, e.g. interference or idle signal}
- H04W 52/028: {switching on or off only a part of the equipment circuit blocks}
- 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 method for monitoring wireless data communication by a user equipment connected to a wireless data network is disclosed. The method, which is performed by the user equipment, comprises the a) receiving at least one signal, wherein the at least one signal comprises at least one characteristic of a wake-up signal, b) determining whether the at least one signal is a wake-up signal or a false alarm wake-up signal, and c) reporting, based on said determining, information on the at least one signal to the wireless data network.

## Claims

### Claim 1

A method for monitoring wireless data communication by a user equipment connected to a wireless data network, comprising the following steps performed by the user equipment:
receiving at least one signal, wherein the at least one signal comprises at least one characteristic of a wake-up signal;
determining whether the at least one signal is a wake-up signal or a false alarm wake-up signal; and
reporting, based on said determining, information on the at least one signal to the wireless data network,
wherein reporting information on the at least one signal to the wireless data network includes selectively executing the reporting when the at least one signal is a false alarm wake-up signal, and
wherein the method further comprises:
collecting information on the false alarm wake-up signals of the plurality of received signals; and
collectively reporting information on the false alarm wake-up signals of the plurality of received signals to the wireless data network, and
wherein collecting information on the false alarm wake-up signals includes information regarding the geographical location of the user equipment at the point of time of receiving each of the false alarm wake-up signals.

### Claim 2 (depends on 1)

The method of claim 1, wherein the collectively reporting information on the false alarm wake-up signals of the plurality of received signals to the wireless data network is performed when the collected false alarm wake-up signals exceeds a specified number.

### Claim 3 (depends on 2)

The method of claim 2, wherein the specified number refers to at least one of a) an absolute number of false alarm wake-up signals or b) a percentage number of false alarm wake-ups signals with respect to the total number of received signals.

### Claim 4 (depends on 1)

The method of claim 1, wherein collectively reporting information on the false alarm wake-up signals of the plurality of received signals to the wireless data network is performed when it is requested by the wireless data network.

### Claim 5 (depends on 1)

The method of claim 1, wherein collecting information on the false alarm wake-up signals includes information regarding point of time of receiving each of the false alarm wake-up signals.

### Claim 6 (depends on 1)

The method of claim 1, wherein receiving the at least one signal is performed by a low-power receiver, and wherein said reception induces a transition of a main receiver from an inactive state towards an active state.

### Claim 7 (depends on 1)

The method of claim 1, wherein the at least one characteristic of the wake-up signal includes at least one of a time-resource, a frequency-resource, a symbol sequence and a symbol modulation of the wake-up signal.

### Claim 8 (depends on 1)

The method of claim 1, wherein the determining whether the at least one signal is a wake-up signal or a false alarm wake-up signal is based on at least one of a time-resource, a frequency-resource a bit signal and a preamble of the false alarm wake-up signal.

### Claim 9 (depends on 1)

The method of claim 1, wherein the determining whether the at least one signal is a wake-up signal or a false alarm wake-up signal is based on at least one further signal subsequently communicated between the user equipment and the wireless data network.

### Claim 10 (depends on 1)

The method of claim 1, wherein receiving the at least one signal is performed by a low-power receiver, and wherein reporting, based on said determining, information on the at least one signal to the wireless data network is performed by a main receiver.

### Claim 11

A user equipment adapted for establishing a wireless data communication with a wireless data network and comprising a low-power receiver and a main receiver, control circuitry, memory, and program code stored in memory, wherein the program code is executed by the control circuitry to configure the user equipment to monitor the wireless data communication by:
receiving at least one signal, wherein the at least one signal comprises at least one characteristic of a wake-up signal;
determining whether the at least one signal is a wake-up signal or a false alarm wake-up signal; and
reporting, based on said determining, information on the at least one signal to the wireless data network, wherein the reporting information on the at least one signal includes selectively executing the reporting when the at least one signal is a false alarm wake-up signal, and
wherein the user equipment is further adapted to monitor the wireless data communication by:
collecting information on the false alarm wake-up signals of the plurality of received signals; and
collectively reporting information on the false alarm wake-up signals of the plurality of received signals to the wireless data network, and
wherein collecting information on the false alarm wake-up signals includes information regarding the geographical location of the user equipment at the point of time of receiving each of the false alarm wake-up signals.

### Claim 12

A node of a wireless data network adapted for establishing a wireless data communication with a user equipment and having a receiver, control circuitry, memory, and program code stored in memory, wherein the program code is executed by the control circuitry to configure the network node to monitor the wireless data communication by:
receiving information reported by the user equipment, wherein the reported information refers to at least one signal which is determined by the user equipment as a false alarm wake-up signal, wherein the information on the false alarm wake-up signals includes information regarding the geographical location of the user equipment at the point of time of receiving each of the false alarm wake-up signals; and
adapting the at least one signal based on the information for further transmission of the at least one signal.
