# US 11,122,518 B2 · Method for applying P-MPR and apparatus thereof

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,122,518 B2
- Document ID: US11122518B2
- Status: Granted
- Kind: B2
- Application number: 16/836,759
- Filed: 2020-03-31
- Published: 2020-10-01
- Granted: 2021-09-14
- Earliest claimed: 2019-04-01
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Manyoung Jung; Yoonoh Yang; Sangwook Lee; Suhwan Lim; Jinyup Hwang; Jongkeun Park
- Web page: https://patentgrep.com/patent/US11122518B2

## CPC

- H04W 52/146: {Uplink power control}
- H04W 52/34: TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W 52/365: {Power headroom reporting}
- H04W 52/367: {Power values between minimum and maximum limits, e.g. dynamic range}
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

There is provided a method for determining an uplink transmit power. The method may performed by a user equipment (UE) and comprise: measuring an uplink duty cycle; comparing the measured uplink duty cycle with a maximum uplink duty cycle; calculating a value for a power management UE maximum power reduction (P-MPR), based on that the measured uplink duty cycle is greater than the maximum uplink duty cycle; and determining the uplink transmit power based on the calculated value for P-MPR.

## Claims

### Claim 1

A method for determining an uplink transmit power, the method performed by a user equipment (UE) and comprising:
measuring an uplink duty cycle;
comparing the measured uplink duty cycle with a maximum uplink duty cycle;
calculating a value for a power management UE maximum power reduction (P-MPR), based on that the measured uplink duty cycle is greater than the maximum uplink duty cycle; and
determining the uplink transmit power based on the calculated value for P-MPR.

### Claim 2 (depends on 1)

The method of claim 1, wherein the uplink duty cycle represents a percentage of uplink symbols transmitted within a first time period.

### Claim 3 (depends on 1)

The method of claim 1, wherein the maximum uplink duty cycle represents a radio of uplink symbols within time division duplex (TDD) uplink symbols and downlink symbols.

### Claim 4 (depends on 1)

The method of claim 1, wherein the calculated value for the P-MPR is applied to satisfy a power exposure requirement.

### Claim 5 (depends on 1)

The method of claim 1, further comprising:
transmitting UE capability information including information on the maximum uplink duty cycle.

### Claim 6 (depends on 1)

The method of claim 1, wherein the determining the uplink transmit power includes:
determining the uplink transmit power; and
applying the calculated value for P-MPR to the uplink transmit power.

### Claim 7 (depends on 6)

The method of claim 6, wherein the applying the value for the P-MPR includes:
reducing the value for the P-MPR from the uplink transmit power.

### Claim 8 (depends on 1)

The method of claim 1, wherein the maximum uplink duty cycle is defined for a frequency range (FR) 2.

### Claim 9 (depends on 8)

The method of claim 8, wherein the FR2 includes a n257 band, a n258 band, a n259 band, a n260 band and a n261 band.

### Claim 10

An apparatus for determining an uplink transmit power, comprising:
at least one processor; and
at least one computer memory connected to the at least one processor and storing instructions that, when executed by the at least one processor, perform operations comprising:
measuring an uplink duty cycle;
comparing the measured uplink duty cycle with a maximum uplink duty cycle;
calculating a value for a power management UE maximum power reduction (P-MPR), based on that the measured uplink duty cycle is greater than the maximum uplink duty cycle; and
determining the uplink transmit power based on the calculated value for P-MPR.

### Claim 11 (depends on 10)

The apparatus of claim 10, wherein the uplink duty cycle represents a percentage of uplink symbols transmitted within a first time period.

### Claim 12 (depends on 10)

The apparatus of claim 10, wherein the maximum uplink duty cycle represents a radio of uplink symbols within time division duplex (TDD) uplink symbols and downlink symbols.

### Claim 13 (depends on 10)

The apparatus of claim 10, wherein the calculated value for the P-MPR is applied to satisfy a power exposure requirement.

### Claim 14 (depends on 10)

The apparatus of claim 10, wherein the determining the uplink transmit power includes:
determining the uplink transmit power; and
applying the calculated value for P-MPR to the uplink transmit power.