# US 10,772,048 B2 · Method and device for real time transmission power control in wireless communication system

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- Number: US 10,772,048 B2
- Document ID: US10772048B2
- Status: Granted
- Kind: B2
- Application number: 16/411,815
- Filed: 2019-05-14
- Published: 2019-08-29
- Granted: 2020-09-08
- Earliest claimed: 2014-05-02
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Jisun Yoon; Hanseok Kim; Byoungha Yi; Bongchan Kim; Intaek Lee
- Web page: https://patentgrep.com/patent/US10772048B2

## CPC

- H04W 52/343: {taking into account loading or congestion level}
- H04W 52/143: {Downlink power control}
- H04W 52/18: TPC being performed according to specific parameters
- H04W 52/247: {where the output power of a terminal is based on a path parameter sent by another terminal}
- H04W 52/367: {Power values between minimum and maximum limits, e.g. dynamic range}
- H04W 52/40: during macro-diversity or soft handoff
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A method and device for real time transmission power control in a wireless communication system are provided. The method includes receiving transmission power control related information from at least one base station, generating transmission power control information for load balancing of the at least one base station based on the transmission power control related information, and controlling the transmission power of the at least one base station based on the transmission power control information.

## Claims

### Claim 1

A method of controlling transmission power by a base station in a wireless communication system, the method comprising:
receiving information associated with interference of a user equipment (UE);
transmitting transmission power control related information including the information associated with the interference;
receiving, by the base station, transmission power control information generated based on the transmission power control related information; and
controlling the transmission power of the base station based on the transmission power control information.

### Claim 2 (depends on 1)

The method of claim 1, wherein the information is associated with a sounding reference signal which is transmitted from the UE.

### Claim 3 (depends on 1)

The method of claim 1, wherein the transmission power control information includes information on a transmission power control range for the base station.

### Claim 4 (depends on 3)

The method of claim 3, wherein the information on the transmission power control range is associated with a power up or a power down for the base station.

### Claim 5 (depends on 1)

The method of claim 1, further comprising:
controlling interference between one or more cells associated with the base station by controlling the transmission power of the base station according to the transmission power control information.

### Claim 6 (depends on 1)

The method of claim 1, wherein the transmission power control related information includes handover related parameters.

### Claim 7

A base station for controlling transmission power in a wireless communication system, the base station comprising:
a transceiver; and
at least one processor configured to:
receive information associated with interference of a user equipment (UE),
transmit transmission power control related information transmission power control related information including the information associated with the interference,
receive transmission power control information generated based on the transmission power control related information, and
control the transmission power based on the transmission power control information.

### Claim 8 (depends on 7)

The base station of claim 7, wherein the information is associated with a sounding reference signal which is transmitted from the UE.

### Claim 9 (depends on 7)

The base station of claim 7, wherein the transmission power control information includes information on a transmission power control range for the base station.

### Claim 10 (depends on 7)

The base station of claim 7, wherein the information on the transmission power control range is associated with a power up or a power down for the base station.

### Claim 11 (depends on 7)

The base station of claim 7, wherein the at least one processor is further configured to control interference between one or more cells associated with the base station by controlling the transmission power of the base station according to the transmission power control information.

### Claim 12 (depends on 7)

The base station of claim 7, wherein the transmission power control related information includes handover related parameters.

### Claim 13

A base station for controlling transmission power in a wireless communication system, the base station comprising:
a transceiver; and
at least one processor configured to:
identify information associated with a resource usage,
transmit transmission power control related information including the information associated with the resource usage,
receive transmission power control information generated based on the transmission power control related information, and
control the transmission power based on the transmission power control information.

### Claim 14 (depends on 13)

The base station of claim 13, wherein the information associated with the resource usage is associated with a physical resource block (PRB) usage ratio, the information being collected for a predetermined amount of time.

### Claim 15 (depends on 13)

The base station of claim 13,
wherein the transmission power control information is determined based on a load balancing mode, and
wherein the load balancing mode is determined based on the information associated with the resource usage.

### Claim 16 (depends on 13)

The base station of claim 13, wherein the transmission power control information includes information on a transmission power control range for the base station determined based on the load balancing mode.

### Claim 17 (depends on 16)

The base station of claim 16, wherein the information on the transmission power control range is associated with a power up or a power down for the base station.

### Claim 18 (depends on 13)

The base station of claim 13, wherein the transmission power control related information includes information associated with a number of UE.

### Claim 19 (depends on 13)

The base station of claim 13,
wherein the transmission power control related information includes information associated with interference of a user equipment (UE), and
wherein the information is associated with a sounding reference signal which is transmitted from the UE.

### Claim 20 (depends on 13)

The base station of claim 13, wherein the transmission power control related information includes handover related parameters.
