The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 2006
Filed:
May. 28, 2003
Chieh-ho Lee, Hsinchu, TW;
Chung-ju Chang, Taipei, TW;
Chieh-Ho Lee, Hsinchu, TW;
Chung-Ju Chang, Taipei, TW;
Accton Technology Corporation, Hsinchu, TW;
Abstract
An apparatus and method is provided for controlling transmission power levels of respective mobile stations in a wireless cellular system, wherein the signal is transmitted from a transmitter at a controlled power level so that either the average received power level or the average signal to interference ratio (SIR) at receiver is close to a desired level so that the desired signal quality is achieved. According to a first embodiment, the desired level for the average received signal power is calculated based on the ensemble average intercell interference power level and the desired SIR levels. According to a second embodiment, the received average SIR level is estimated based on the average desired signal power and the ensemble average interference power. The average received power level (average SIR value) is compared to the desired level to generate a power control command. The power control command is fed back to the mobile station to instruct the adjustment of transmission power of the mobile station.