# US 12,015,984 B2 · Terminal device, system and methods

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- Number: US 12,015,984 B2
- Document ID: US12015984B2
- Status: Granted
- Kind: B2
- Application number: 17/427,917
- Filed: 2020-02-07
- Published: 2022-04-07
- Granted: 2024-06-18
- Earliest claimed: 2019-02-14
- Assignees: Sony Group Corporation
- Applicants: Sony Group Corporation
- Inventors: Shin Horng Wong; Martin Warwick Beale; Vivek Sharma
- Web page: https://patentgrep.com/patent/US12015984B2

## CPC

- H04W 52/0245: {according to signal strength}
- H04W 24/02: Arrangements for optimising operational condition
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- 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 terminal device for use in a wireless telecommunications network, the terminal device comprising receiver circuitry and processor circuitry, wherein the processor circuitry is configured: to measure a value of a parameter of a first radio signal received by the receiver circuitry; to determine, based on the value of the parameter of the first radio signal, a measurement constraint of a second radio signal received by the receiver circuitry; and to measure a value of a parameter of one or more second radio signals received by the receiver circuitry in accordance with the measurement constraint.

## Claims

### Claim 1

A terminal device for use in a wireless telecommunications network, the terminal device comprising:
receiver circuitry; and
processor circuitry configured to:
measure a value of one or more parameters of a first radio signal received by the receiver circuitry;
determine, based on the value of the one or more parameters of the first radio signal, a measurement constraint of a second radio signal received by the receiver circuitry; and
measure a value of a parameter of one or more second radio signals received by the receiver circuitry in accordance with the measurement constraint, wherein
one of the one or more parameters of the first radio signal is a radio frequency of the first radio signal.

### Claim 2 (depends on 1)

The terminal device according to claim 1, wherein:
the measurement constraint is a one or more of a plurality of radio frequencies; and
the processor circuitry is configured to measure the value of the parameter of the one or more second radio signals when the one or more second radio signals are received at the one or more of the plurality of radio frequencies.

### Claim 3 (depends on 1)

The terminal device according to claim 1, wherein:
the measurement constraint is a specific one or more of a plurality of nodes of the wireless telecommunications network; and
the processor circuitry is configured to measure the value of the parameter f the specific one or more second radio signals when the one or more second radio signals are received from the one or more of the plurality of nodes of the wireless telecommunications network.

### Claim 4 (depends on 1)

The terminal device according to claim 1, wherein:
the first radio signal is received from one node of the wireless telecommunications network; and
the one or more second radio signals are received from one or more respective different nodes of the wireless telecommunications network.

### Claim 5 (depends on 4)

The terminal device according to claim 4, wherein the node from which the first radio signal is received is a node of a cell of the wireless telecommunications network located closest to the one or more different nodes from which the one or more second radio signals are received.

### Claim 6 (depends on 1)

The terminal device according to claim 1, wherein one of the one or more parameters of the first radio signal is a reference signal received power (RSRP) of the first radio signal.

### Claim 7 (depends on 6)

The terminal device according to claim 6, wherein the processor circuitry is configured to measure the value of the parameter of each of the one or more second radio signals when the RSRP of the first radio signal meets a predetermined respective threshold.

### Claim 8 (depends on 1)

The terminal device according to claim 1, wherein another one of the one or more parameters of the first radio signal is a specific node of the wireless telecommunications network from which the first radio signal is received.

### Claim 9 (depends on 1)

The terminal device according to claim 1, wherein:
the measurement constraint is a rate of how often the value of the parameter of the one or more second radio signals is measured; and
the processor circuitry is configured to measure the value of the parameter of the one or more second radio signals at the rate.

### Claim 10 (depends on 9)

The terminal device according to claim 9, wherein:
the parameter of the first radio signal is a rate of change of a reference signal received power (RSRP) of the first radio signal; and
the processor circuitry is configured to change the rate of how often the value of the parameter of the one or more second radio signals is measured when the rate of change of the RSRP of the first radio signal meets a predetermined respective threshold.

### Claim 11 (depends on 1)

A wireless telecommunications system, comprising:
the terminal device according to claim 1;
a first infrastructure equipment configured to transmit the first radio signal; and
a second infrastructure equipment configured to transmit the second radio signal.

### Claim 12

A method of operating a terminal device for use in a wireless telecommunications network, the method comprising:
measuring a value of one or more parameters of a first radio signal received by the terminal device;
determining, based on the value of the one or more parameters of the first radio signal, a measurement constraint of a second radio signal received by the terminal device; and
measuring a value of a parameter of one or more second radio signals received by the terminal device in accordance with the measurement constraint, wherein
one of the one or more parameters of the first radio signal is a radio frequency of the first radio signal.

### Claim 13

A terminal device for use in a wireless telecommunications network, the terminal device comprising:
receiver circuitry; and
processor circuitry configured to:
measure a value of one or more parameters of a first radio signal received by the receiver circuitry;
determine, based on the value of the one or more parameters of the first radio signal, a measurement constraint of a second radio signal received by the receiver circuitry; and
measure a value of a parameter of one or more second radio signals received by the receiver circuitry in accordance with the measurement constraint, wherein:
the measurement constraint is a rate of how often the value of the parameter of the one or more second radio signals is measured; and
the processor circuitry measures the value of the parameter of the one or more second radio signals at the rate.

### Claim 14 (depends on 13)

The terminal device according to claim 13, wherein:
the first radio signal is received from one node of the wireless telecommunications network; and
the one or more second radio signals are received from one or more respective different nodes of the wireless telecommunications network.

### Claim 15 (depends on 14)

The terminal device according to claim 14, wherein the node from which the first radio signal is received is a node of a cell of the wireless telecommunications network located closest to the one or more different nodes from which the one or more second radio signals are received.

### Claim 16 (depends on 13)

The terminal device according to claim 13, wherein one of the one or more parameters of the first radio signal is a reference signal received power (RSRP) of the first radio signal.

### Claim 17 (depends on 13)

The terminal device according to claim 13, wherein one of the one or more parameters of the first radio signal is a specific node of the wireless telecommunications network from which the first radio signal is received.

### Claim 18 (depends on 17)

The terminal device according to claim 17, wherein the processor circuitry is configured to measure the value of the parameter of each of the one or more second radio signals when the RSRP of the first radio signal meets a predetermined respective threshold.

### Claim 19 (depends on 13)

A wireless telecommunications system, comprising:
the terminal device according to claim 13;
a first infrastructure equipment configured to transmit the first radio signal; and
a second infrastructure equipment configured to transmit the second radio signal.
