METHOD AND APPARATUS FOR DETERMINING AND MANAGING CONGESTION IN A WIRELESS COMMUNICATIONS SYSTEM.

摘要

An improved method of network management, particularly in the context of standardsIEEE802.11 and IEEE802.11k, through two new MAC measurements, with attendantadvantages. The two new measurements include WTRU uplink traffic loading measurement,and an AP service loading measurement and is generally applicable at least tolayers 1 and 2 as applied to a least 802.11k in the context of OFDM and CDMA 2000 systems,but is applicable to other scenarios as well. A Method for determining and advertisingcongestion is also provided for a Wireless Local Area Network (WLAN) system.The present invention also introduces a method for managing congestion whencongestion is detected. This aspect of the present invention applies primarilyto wireless systems that use the Carrier Sense Multiple Access/ Collision Avoidance(CSMA/CA) mechanism. The methods are advantageously implemented in selectivelyconfigured WTRUs of various forms.