Patent ID: 7599325

Claim:
A method for reducing power consumption of a wireless local area network, wherein there are an IEEE 802.11b and an IEEE 802.11g standards suitable for the wireless local area network, the wireless local area network comprises a 802.11b station communicating according to the IEEE 802.11b standard, a 802.11g station communicating according to the IEEE 802.11g standard, and an access point, and the 802.11g station has a DSSS baseband transceiver and an OFDM baseband transceiver for respectively communicating packets according to the IEEE 802.11b and the IEEE 802.11g standards, the method comprising the steps of: storing a communication mode of the 802.11g station, wherein the communication mode represents whether the 802.11g station communicates according to the IEEE 802.11b or the IEEE 802.11g standards; disabling the OFDM baseband transceiver of the 802.11g station if the communication mode is the IEEE 802.11b standard; modulating a plurality of first packets of the 802.11g station with the DSSS baseband transceiver according to the IEEE 802.11b standard before the plurality of first packets is delivered by the 802.11g station; demodulating a plurality of second packets of the 802.11g station with the DSSS baseband transceiver according to the IEEE 802.11b standard after the plurality of second packets is received by the 802.11g station; and restraining the 802.11g station from sending a CTS to self command to the 802.11b station before communicating with the access point to save network communication bandwidth if the access point is an 802.11g access point.