METHOD AND DEVICE FOR SETTING TRANSMISSION POWER OF COMMUNICATION SYSTEM

• US 20200137693A1
• Filed: 12/20/2019
• Published: 04/30/2020
• Est. Priority Date: 06/20/2017
• Status: Active Grant

• Current Assignee: SZ DJI Technology Co., Ltd. (d/b/a DJI) (iFlight Technology Company Limited)
• Original Assignee: SZ DJI Technology Co., Ltd. (d/b/a DJI) (iFlight Technology Company Limited)
• Inventors: WANG, Yan, WANG, Naibo, FAN, Wei, HUANG, Han
• Granted Patent: US 10,904,840 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 17/336 Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 52/146 Uplink power control
• CPC Class Codes: H04W 52/22 taking into account previous information or commands
• CPC Class Codes: H04W 52/243 taking into account interferences
• CPC Class Codes: H04W 52/367 Power values between minimum and maximum limits, e.g. dynamic range
• CPC Class Codes: H04W 72/0473 the resource being transmission power
• CPC Class Codes: H04W 72/542 using measured or perceived quality

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.

Claims

1. A transmission power setting method comprising:

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 including maximum transmission powers for 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:

for each of the plurality of channels;

obtaining 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, calculating a quality parameter of the channel; and

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

4. The method of claim 3, 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.

5. The method of claim 3, 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.

6. 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; and

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.

7. The device of claim 6, 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.

8. The device of claim 6, wherein the processor is further configured to invoke the transmission power setting command to:

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 of channel, calculate a quality parameter of the channel; and

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

9. The device of claim 8, 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.

10. The device of claim 8, 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.

11. 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; and

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.

12. The computer readable storage medium of claim 11, 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.

13. The computer readable storage medium of claim 11, wherein the computer program further causes the processor to:

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 of channel, calculate a quality parameter of the channel; and

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

14. The computer readable storage medium of claim 13, 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.

15. The computer readable storage medium of claim 13, 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.