POWER CONTROL METHODS AND PROCEDURES FOR WIRELESS LOCAL AREA NETWORKS

摘要

A method and apparatus is described herein for performing loop power control and transmission power control (TPC) in a wireless network. Described herein are methods including using separate power control loops for communication with an entire wireless network and for point-to-point (P2P) transmissions and separate power control loops for omni-directional and directional beamformed transmissions. Also described herein are methods and apparatuses for requesting clear channel assessment (CCA) measurements and adjusting CCA thresholds and transmission power based on the reported measurements. Methods and apparatuses are also described wherein access points (APs) coordinate transmission power to reduce interference with each other and to determine optimal transmission power to each mobile station (STA).

主权项

1. A method for use in an access point (AP) for interference coordination in a wireless local area network (WLAN), the method comprising:
transmitting, by the AP, a measurement request to a plurality of mobile stations (STAs) in the WLAN; receiving, by the AP, a measurement report from each of the plurality of mobile STAs, wherein each measurement report includes a clear channel assessment (CCA) threshold margin value and a CCA busy fraction measurement value; determining, by the AP, whether to modify transmission power in the WLAN and a CCA threshold for the WLAN based on each received measurement report; and transmitting, by the AP, a CCA modification element to the plurality of mobile STAs on a condition that the CCA threshold for the WLAN is modified, wherein the CCA modification element includes a modified CCA threshold value.