Method and device for setting transmission power of communication system

Patent metadata

Field	Value
Publication number	US-10904840-B2
Application number	US-201916722868-A
Country	US
Kind code	B2
Filing date	Dec 20, 2019
Priority date	Jun 20, 2017
Publication date	Jan 26, 2021
Grant date	Jan 26, 2021

Abstract

A transmission power setting method includes selecting one of a plurality of channels of a communication system as a target channel for communication, and, based on pre-set communication parameters, setting a transmission power of the communication system to be a maximum transmission power corresponding to the target channel. The pre-set communication parameters include maximum transmission powers for the plurality of channels.

First claim

What is claimed is:

1. A transmission power setting method comprising:
selecting one of a plurality of channels of a communication system as a target channel for communication;
based on pre-set communication parameters, setting a transmission power of the communication system to be a maximum transmission power corresponding to the target channel, the pre-set communication parameters including maximum transmission powers for the plurality of channels;
for each of the plurality of channels:
obtaining an interference signal power and a noise power for each of a plurality of channels; and
based on the interference signal power, the noise power, and the maximum transmission power for the channel, calculating a quality parameter of the channel; and

performing a channel switching operation based on the quality parameters of the plurality of channels.

2. The method of claim 1 , wherein the maximum transmission powers for the plurality of channels are obtained based on compliance with a spectral leakage specification and a transmission power specification.

3. The method of claim 1 , further comprising, after the channel switching operation is performed:
determining whether a time interval since the channel switching operation reaches a pre-set time threshold; and
in response to the time interval reaching the pre-set time threshold, obtaining again the interference signal power and the noise power for each of the plurality of channels.

4. The method of claim 1 , further comprising, after the channel switching operation is performed:
obtaining the interference signal power for a current operating channel of the communication system;
determining whether the interference signal power for the current operating channel exceeds a pre-set power threshold; and
in response to the interference signal power for the current operating channel exceeding the pre-set power threshold, obtaining again the interference signal power and the noise power for each of the plurality of channels.

5. A transmission power setting device comprising:
a memory storing a transmission power setting command; and
a processor configured to invoke the transmission power setting command to:
select one from a plurality of channels of a communication system as a target channel for communication;
based on pre-set communication parameters, seta transmission power of the communication system to be a maximum transmission power corresponding to the target channel, the pre-set communication parameters including maximum transmission powers for the plurality of channels;
for each of the plurality of channels:
obtain an interference signal power and a noise power; and
based on the interference signal power, the noise power, and the maximum transmission power for the channel, calculate a quality parameter of the channel; and

perform a channel switching operation based on the quality parameters of the plurality of channels.

6. The device of claim 5 , wherein the maximum transmission powers for the plurality of channels are obtained based on compliance with a spectral leakage specification and a transmission power specification.

7. The device of claim 5 , wherein the processor is further configured to invoke the transmission power setting command to, after the channel switching operation is performed:
determine whether a time interval since the channel switching operation reaches a pre-set time threshold; and
in response to the time interval reaching the pre-set time threshold, obtain again the interference signal power and the noise power for each of the plurality of channels.

8. The device of claim 5 , wherein the processor is further configured to invoke the transmission power setting command to, after the channel switching operation is performed:
obtain the interference signal power for a current operating channel of the communication system;
determine whether the interference signal power for the current operating channel exceeds a pre-set power threshold; and
in response to the interference signal power for the current operating channel exceeding the pre-set power threshold, obtain again the interference signal power and the noise power for each of the plurality of channels.

9. A computer readable storage medium storing a computer program that, when executed by a processor, causes the processor to:
select one from a plurality of channels of a communication system as a target channel for communication;
based on pre-set communication parameters, set a transmission power of the communication system to be a maximum transmission power corresponding to the target channel, the pre-set communication parameters including maximum transmission powers for the plurality of channels;
for each of the plurality of channels:
obtain an interference signal power and a noise power; and
based on the interference signal power, the noise power, and the maximum transmission power for the channel, calculate a quality parameter of the channel; and

perform a channel switching operation based on the quality parameters of the plurality of channels.

10. The computer readable storage medium of claim 9 , wherein the maximum transmission powers for the plurality of channels are obtained based on compliance with a spectral leakage specification and a transmission power specification.

11. The computer readable storage medium of claim 9 , wherein the computer program further causes the processor to, after the channel switching operation is performed:
determine whether a time interval since the channel switching operation reaches a pre-set time threshold; and
in response to the time interval reaching the pre-set time threshold, obtain again the interference signal power and the noise power for each of the plurality of channels.

12. The computer readable storage medium of claim 9 , wherein the computer program further causes the processor to, after the channel switching operation is performed:
obtain the interference signal power for a current operating channel of the communication system;
determine whether the interference signal power for the current operating channel exceeds a pre-set power threshold; and
in response to the interference signal power for the current operating channel exceeding the pre-set power threshold, obtain again the interference signal power and the noise power for each of the plurality of channels.

Assignees

• Sz Dji Technology Co Ltd

Inventors

• Wang Yan
• Wang Naibo
• Fan Wei
• Huang Han

Classifications

• H04W72/542

  using measured or perceived quality · CPC title

• H04W52/367 Primary

  Power values between minimum and maximum limits, e.g. dynamic range · CPC title

• H04W16/14

  Spectrum sharing arrangements {between different networks} · CPC title

• H04W52/146 Primary

  Uplink power control · CPC title

• H04W52/22

  taking into account previous information or commands · CPC title