Wireless local area network device transmitting power control method
A transmission power control and wireless local area network technology, applied in the field of communication, can solve the problems of receiver signal blocking, unable to automatically adjust power, adjustment, etc., to achieve the effect of preventing signal blocking and improving energy efficiency
Inactive Publication Date: 2014-03-26
SHENZHEN ALLWINS TECH
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Problems solved by technology
[0003] It can only rely on the factory-calibrated power value of the hardware to transmit, and cannot adjust the appropriate power in a good or bad environment to avoid signal blockage of the client receiver; it can only rely on manual adjustment of the power on the WEB interface, and cannot adjust the power according to The strength of the actual signal automatically adjusts the power
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[0026] Such as figure 1 As shown, the wireless local area network device of the present invention includes a control module, a wireless transmission module and a power amplifier. The wireless transmitting module is used for providing wireless transmitting signals, and the power amplifier is used for amplifying the wireless transmitting signals. The control module is used to automatically adjust the amplification factor of the power amplifier so as to meet the needs of data communication.
[0027] The control module adjusts the amplification factor of the power amplifier as follows:
[0028] The wireless LAN device establishes a link with the wireless terminal device, and calculates the RSSI (Received Signal Strength Indicator) percentage of the wireless terminal device through the transmitter and receiver mechanisms;
[0029] The wireless LAN device sends an ARP request message to the wireless terminal device, and statistically analyzes the average delay data Tarp of the ARP...
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The invention provides a wireless local area network device transmitting power control method which includes the steps: linking a wireless local area network device with a wireless terminal device, and computing the RSSI (received signal strength indicator) percentage of the wireless terminal device; transmitting ARP (address resolution protocol) request messages to the wireless terminal device by the wireless local area network device, and counting and analyzing ARP message responding average time delay data Tarp of the wireless terminal device; controlling output of a power amplifier by the aid of a PID (proportion integration differentiation) algorithm to adjust the output power. By the wireless local area network device transmitting power control method, the transmitting power can be automatically adjusted according to data responding time delay.
Description
technical field [0001] The invention relates to the communication field, in particular to a method for controlling transmission power of a wireless local area network device. Background technique [0002] Existing wireless local area network devices (such as wireless routers, etc.) rely on basic software drivers and hardware levels to maintain the effectiveness of transmission power. But it has the following problems: [0003] It can only rely on the factory-calibrated power value of the hardware to transmit, and cannot adjust the appropriate power in a good or bad environment to avoid signal blockage of the client receiver; it can only rely on manual adjustment of the power on the WEB interface, and cannot The strength of the actual signal automatically adjusts the power. Contents of the invention [0004] In order to solve the above-mentioned problems in the prior art, it is necessary to provide a transmission power control method of a wireless local area network devic...
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IPC IPC(8): H04W52/08
Inventor 吴振善
Owner SHENZHEN ALLWINS TECH