InvestorsHub Logo

Gamco

08/23/11 9:15 AM

#333097 RE: Gamco #333096

United States Patent 8,005,055
Kwak , et al. August 23, 2011

--------------------------------------------------------------------------------
Method and apparatus for determining and managing congestion in a wireless communications system


Abstract
An improved method of network management, particularly in the context of standards IEEE802.11 and IEEE802.11k, through two new MAC measurements, with attendant advantages. The two new measurements include WTRU uplink traffic loading measurement, and an AP service loading measurement and is generally applicable at least to layers 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 advertising congestion is also provided for a Wireless Local Area Network (WLAN) system. The present invention also introduces a method for managing congestion when congestion is detected. This aspect of the present invention applies primarily to wireless systems that use the Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) mechanism. The methods are advantageously implemented in selectively configured WTRUs of various forms.


--------------------------------------------------------------------------------
Inventors: Kwak; Joseph A. (Bolingbrook, IL), Cuffaro; Angelo (Laval, CA), Marinier; Paul (Brossard, CA), Cave; Christopher (Candiac, CA), La Sita; Frank (East Setauket, NY), Ali; Ahmed (Verdum, CA), Roy; Vincent (Montreal, CA), Touag; Athmane (Laval, CA), Rudolf; Marian (Montreal, CA), Hunkeler; Teresa Joanne (Montreal, CA), Rahman; Shamim Akbar (Montreal, CA)
Assignee: InterDigital Technology Corporation (Wilmington, DE)

Appl. No.: 10/939,785
Filed: September 13, 2004

--------------------------------------------------------------------------------

Related U.S. Patent Documents

--------------------------------------------------------------------------------

Application Number Filing Date Patent Number Issue Date
10897771 Jul., 2004
60489385 Jul., 2003
60552537 Mar., 2004


--------------------------------------------------------------------------------

Current U.S. Class: 370/338 ; 370/395.21; 370/395.43; 455/452.2; 709/225
Current International Class: H04W 4/00 (20090101); H04L 12/28 (20060101)
Field of Search: 370/338,395.43,395.21 709/225 455/452.1,452.2,453,414.3

PPP