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    • 3. 发明申请
    • METHOD AND APPARATUS FOR PROVIDING INDIVIDUAL POWER CONTROL INFORMATION IN A WIRELESS LOCAL AREA NETWORK/WIRELESS WIDE AREA NETWORK (WLAN/WWAN)
    • 在无线局域网/无线宽域网(WLAN / WWAN)中提供个体功率控制信息的方法和装置
    • WO2005065271A2
    • 2005-07-21
    • PCT/US2004/043404
    • 2004-12-22
    • INTERDIGITAL TECHNOLOGY CORPORATIONCHANDRA, ArtyHUNKELER, Teresa, Joanne
    • CHANDRA, ArtyHUNKELER, Teresa, Joanne
    • H04B7/005H04W52/28
    • H04W52/288
    • Method and apparatus employed by wireless network components such as access points (APs) for controlling transmitting power level of individual wireless transmitter/receiver units (WTRUs) by establishing a power transmit level based on prior transmit and receiving transmission and reception statistics such as signal to noise ratio (SNR), bit error rate (BER), frame error rate (FER) and/or the like. Power transmit level information is preferably communicated through any one of a clear to send (CTS), request to send (RTS), data and acknowledge (ACK) frame. Alternatively the power control information may be inserted into a beacon frame or an individual control frame specifically designated for power control. The WTRUs preferably have battery level sensors and adjust power control level responsive to a sensed battery level. Alternatively, the APs and WTRUs may reverse roles and the WTRUs may provide power transmit level information to an AP to facilitate transmissions by the AP.
    • 无线网络部件所采用的方法和装置,例如接入点(AP),用于通过基于先前发送和接收传输和接收统计信号建立功率发射电平来控制各个无线发射机/接收机单元(WTRU)的发射功率电平, 噪声比(SNR),误码率(BER),帧错误率(FER)等。 功率发送电平信息优选地通过清除发送(CTS),发送请求(RTS),数据和确认(ACK)帧中的任何一个来传送。 或者,功率控制信息可以被插入到专门用于功率控制的信标帧或单独的控制帧中。 WTRU优选地具有电池电平传感器并且响应于检测到的电池电平来调整功率控制电平。 或者,AP和WTRU可以反转角色,并且WTRU可以向AP提供功率传输级别信息以便于AP的传输。