| 摘要 |
A new protocol system and method is described implemented in the MAC sublayer, utilizing a Schedule Information Vector (SIV) protocol for saving power in wireless local area networks. The protocol comprises an access point, one or more stations, and an SIV frame comprising an association ID for identifying one of the stations and a scheduled wake-up time for the identified station. The access point originates and transmits the SIV frame protocol of the scheduled wake-up time to the stations. When the identified station awakes at the scheduled time, the AP directs the station to uplink or downlink CF data according to another suitable protocol (e.g., a CC/RR protocol). The AP may then be used to direct the identified station to send a request for uplink data, to receive a poll for uplink CF transmission, or to receive downlink CF data, thereby minimizing time the station must remain awake, thus saving power by minimizing time in channel contention. The SIV frame protocol of the wireless network is further operable to dynamically adjust the scheduled wake-up times of the stations, a sequence of the wake-up times, a periodic wake-up time, a plurality of wake-up times, and a duration of the wake-up times of the stations. These adjustments may be made based on network traffic, traffic buffering times, data priorities, data length, and data rates. |
