# US 12,191,950 B2 · Methods and devices for cell measurement in a cellular network

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- Number: US 12,191,950 B2
- Document ID: US12191950B2
- Status: Granted
- Kind: B2
- Application number: 18/035,544
- Filed: 2021-11-04
- Published: 2024-01-11
- Granted: 2025-01-07
- Earliest claimed: 2020-11-09
- Assignees: Nokia Technologies Oy
- Applicants: Nokia Technologies Oy
- Inventors: Faranaz Sabouri-Sichani; Samantha Caporal Del Barrio
- Web page: https://patentgrep.com/patent/US12191950B2

## CPC

- H04B 7/0404: the mobile station comprising multiple antennas, e.g. to provide uplink diversity
- H04B 7/0608: {Antenna selection according to transmission parameters}
- H04B 7/06956: {using a selection of antenna panels}
- H04B 7/0805: {with single receiver and antenna switching (H04B7/0822 takes precedence)}
- H04B 17/328: {Reference signal received power [RSRP]; Reference signal received quality [RSRQ]}
- H04W 36/0085: {Hand-off measurements}
- H04B 7/088: {using beam selection}
- H04W 24/02: Arrangements for optimising operational condition
- H04B: TRANSMISSION
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A communication device for use in a cellular network includes a plurality of antenna panels for communication with cells in a cellular network, circuitry for carrying out a panel selection process based on received power level for selecting an antenna panel, and circuitry for performing measurement cycles requiring determination of respective power levels. The circuitry for performing measurement cycles measures a first received power level from said neighbor cell with the antenna panel selected for said neighbor cell and measures a second received power level from said neighbor cell with the antenna panel selected for said serving cell. The circuitry for performing measurement cycles measures a third power level received for said neighbor cell with the antenna panel selected for said serving cell and adjusting said third power level with an offset function, said adjusted third power level being used as the respective power level for said neighbor cell.

## Claims

### Claim 1

A communication device, comprising:
a plurality of antenna panels for communication with cells in a cellular network;
at least one processor; and
at least one memory storing instructions that, when executed with the at least one processor, cause the communication device to:
carry out a panel selection process based on received power level for selecting a respective antenna panel among said plurality of antenna panels for a serving cell and a neighbor cell;
perform measurement cycles requiring determination of respective power levels received from said serving cell and said neighbor cell;
measure a first received power level from said neighbor cell with the antenna panel selected for said neighbor cell and measure a second received power level from said neighbor cell with the antenna panel selected for said serving cell; and
measure a third power level received for said neighbor cell with the antenna panel selected for said serving cell and adjust said third power level with an offset function of the difference between the first and second power levels, said adjusted third power level being used as the respective power level for said neighbor cell.

### Claim 2 (depends on 1)

Communication device according to claim 1, wherein the instructions, when executed with the at least one processor, cause the communication device to measure first, second, and third power levels for a plurality of beams of said neighbor cell, and to carry out adjustment of said third power level of the beams.

### Claim 3 (depends on 1)

Communication device according to claim 1, wherein the instructions, when executed with the at least one processor, cause the communication device to carry out the measurement cycles for a plurality of neighbor cells.

### Claim 4 (depends on 1)

Communication device according to claim 1, wherein the received power level is a reference signal received power level.

### Claim 5 (depends on 1)

Communication device according to claim 1, wherein the instructions, when executed with the at least one processor, cause the communication device to perform an offset confidence check wherein if said check fails, said first and second power levels are refreshed with performing at least one first type measurement cycle.

### Claim 6 (depends on 5)

Communication device according to claim 5, wherein said offset confidence check comprises checking one or more of the following conditions and that the check fails if at least one among the checked conditions is met:
M consecutive second type measurement cycles have been performed, where M is an integer equal to or greater than one;
the respective power level for at least one neighbor cell resulting from the adjustment of the third power level is above a first threshold;
the difference between two consecutive measurements of said second power level is above a second threshold;
the communication device selects a different antenna panel for the serving cell; or
a handover to a new serving cell has occurred.

### Claim 7 (depends on 6)

Communication device according to claim 6, wherein M decreases with increasing mobility of said communication device.

### Claim 8 (depends on 1)

Communication device according to claim 1, wherein said instructions, when executed with the at least one processor, cause the communication device to perform the first type measurement cycle N consecutive times, with N being an integer increasing with the mobility of said communication device.

### Claim 9

A method at a communication device comprising a plurality of antenna panels for communication with cells in a cellular network, said method comprising:
carrying out a panel selection process based on received power level for selecting a respective antenna panel among said plurality of antenna panels for a serving cell and a neighbor cell;
performing measurement cycles requiring determination of respective power levels received from said serving cell and said neighbor cell;
during a first type measurement cycle, measuring a first received power level from said neighbor cell with the antenna panel selected for said neighbor cell and measuring a second received power level from said neighbor cell with the antenna panel selected for said serving cell; and
during a second type measurement cycle, measuring a third power level received from said neighbor cell with the antenna panel selected for said serving cell and adjusting said third power level with an offset function of the difference between the first and second power levels, said adjusted third power level being used as the respective power level for said neighbor cell.

### Claim 10 (depends on 9)

Method according to claim 9, wherein the panel selection process and the measurement cycles are carried out for a plurality of neighbor cells.

### Claim 11 (depends on 9)

Method according to claim 9, wherein the received power level is a reference signal received power level.

### Claim 12 (depends on 9)

Method according to claim 9, further comprising an offset confidence check wherein if said check fails, said offset is refreshed with performing at least one first type measurement cycle.

### Claim 13 (depends on 12)

Method according to claim 12, wherein said offset confidence check comprises checking one or more of the following conditions and that the check fails if at least one among the checked conditions is met:
M consecutive second type measurement cycles have been performed, where M is an integer equal to or greater than one;
the respective power level for at least one neighbor cell resulting from the adjustment of the third power level is above a first threshold;
the difference between two consecutive measurements of said second power level is above a second threshold;
the communication device selects a different antenna panel for the serving cell; or
a handover to a new serving cell has occurred.

### Claim 14 (depends on 13)

Method according to claim 13, wherein M decreases with increasing mobility of said communication device.

### Claim 15 (depends on 9)

Method according to claim 9, wherein the first type measurement cycle is performed N consecutive times, with N being an integer increasing with the mobility of said communication device.

### Claim 16 (depends on 9)

A non-transitory program storage device readable with an apparatus, tangibly embodying a program of instructions executable with the apparatus for performing the method of claim 9.
