Title:
CDMA通信システム用加入者局ユニットの送信電力制御
Document Type and Number:
Japanese Patent JP4406631
Kind Code:
B2
Abstract:
The invention provides a spread spectrum communication system for maintaining an initial transmit power level of a communication station during periods of inactivity. The system comprises a first station (501) and a second station (502), the initial transmit power level of which is maintained, wherein the first station generates an automatic power control signal by comparing a measured noise power level in a communication channel and an estimated system transmit power level and the second station occasionally transmits a spread spectrum signal whilst in an inactive state and receives the automatic power control signal to adjust an initial transmit power level thereof.
Inventors:
Romp, Gerry
John Kowalski
Ozur Talc, Fatih
John Kowalski
Ozur Talc, Fatih
Application Number:
JP2006221204A
Publication Date:
February 03, 2010
Filing Date:
August 14, 2006
Export Citation:
Assignee:
Interdigital Technology Corporation
International Classes:
H03K3/84; H04W52/04; G06F13/374; H03H17/02; H04B1/707; H04B1/7075; H04B1/708; H04B1/7085; H04B1/709; H04B1/7093; H04B1/711; H04B7/005; H04B7/216; H04B7/26; H04B15/00; H04B17/00; H04J13/00; H04J13/10; H04K1/00; H04L1/00; H04L5/14; H04L7/00; H04L7/033; H04L25/02; H04L27/20; H04L27/233; H04L27/30; H04N1/333; H04W52/14; H04W52/24; H03H17/06; H04B1/7077; H04B1/7115; H04B1/712; H04J11/00; H04J13/12; H04J13/16; H04L27/00
Domestic Patent References:
| JP4502841A | ||||
| JP795151A |
Other References:
Per-goran,Lars-magnus Ewerbring,A CDMA-Based Radio Access Design for UMTS,IEEE Personal Communications,Feburuary 1995,p.48-53
Allen Saamasi,Klein S. Gilhousen,On the system design aspects of code division multiple access(CDMA) applied to digital cellular and personal communications networks,Vehicular Technology Conference,1991.Gateway to the Future Technology in Motion,41st IEEE、22.May.1991,p.57-62
Alfred Baier et.al,Design Study for a CDMA-Based Third-Generation Mobile Radio System,IEEE Journal on Selected Areas in Communications,Vol.12,No.4,May 1994,p.733-743
土肥智弘,佐和橋 衛,DS/CDMAにおける干渉電力を用いる送信電力制御,信学技報,A・P94-75,RCS94-99(1994-10)p.63-68
呉 建明、他2名,スループットを最大にする無線マルチメディアCDMA通信方式の一検討,信学技報,IT94-114,SST94-97(1995-03),p.25-30
安部田貞行 他2名,抑圧パイロットチャネルを用いたDS/CDMA同期検波方式,電子情報通信学会論文誌 B-II,ol.J77-B-II,No.11,1994年11月,p641-648
Allen Saamasi,Klein S. Gilhousen,On the system design aspects of code division multiple access(CDMA) applied to digital cellular and personal communications networks,Vehicular Technology Conference,1991.Gateway to the Future Technology in Motion,41st IEEE、22.May.1991,p.57-62
Alfred Baier et.al,Design Study for a CDMA-Based Third-Generation Mobile Radio System,IEEE Journal on Selected Areas in Communications,Vol.12,No.4,May 1994,p.733-743
土肥智弘,佐和橋 衛,DS/CDMAにおける干渉電力を用いる送信電力制御,信学技報,A・P94-75,RCS94-99(1994-10)p.63-68
呉 建明、他2名,スループットを最大にする無線マルチメディアCDMA通信方式の一検討,信学技報,IT94-114,SST94-97(1995-03),p.25-30
安部田貞行 他2名,抑圧パイロットチャネルを用いたDS/CDMA同期検波方式,電子情報通信学会論文誌 B-II,ol.J77-B-II,No.11,1994年11月,p641-648
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Nakanishi Eiichi
Kazuo Abe
Nakanishi Eiichi