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公开(公告)号：CA2806458C
公开(公告)日：2016-10-04
申请号：CA2806458
申请日：2001-07-12
Applicant: INTERDIGITAL TECH CORP
Inventor： HAIM JOHN W
Abstract: A system and a method of controlling transmitter power in a wireless communication system in which user data is processed as a multirate signal having a rate N(t) and in which the user data signal having rate N(t) is converted into a transmission data signal having a faster rate M(t) for transmission. The transmission power is adjusted on a relatively slow basis based on quality of data received by a receiver of the transmitted data. The transmitter power is determined as a function of N(t)/M(t) such that a change in the data rate in the multiple channels or the rate of the transmission data signal is compensated in advance of a quality of data based adjustment associated with such data rate change. Preferably, the user data signal having rate N(t) is converted into the transmission data signal having the faster rate M(t) by repeating selected data bits whereby the energy per bit to noise spectrum density ratio is increased in the transmission data signal.
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公开(公告)号：DK1814237T3
公开(公告)日：2015-02-09
申请号：DK07009968
申请日：1997-06-23
Applicant: INTERDIGITAL TECH CORP
Inventor： OZLUTURK FATIH , LOMP GARY R , HAIM JOHN W
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公开(公告)号：DK1814240T3
公开(公告)日：2012-07-02
申请号：DK07009969
申请日：1997-06-23
Applicant: INTERDIGITAL TECH CORP
Inventor： OZLUTURK FATIH , LOMP GARY R , HAIM JOHN W
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公开(公告)号：CA2480093C
公开(公告)日：2011-12-06
申请号：CA2480093
申请日：2003-03-25
Applicant: INTERDIGITAL TECH CORP
Inventor： HAIM JOHN W , OH HYUN-SEOK , KIM YOUNGLOK , ZEIRA ARIELA , DIFAZIO ROBERT A
Abstract: The present invention is a receiver which includes a blind code detection device (15) for determining the identity of a plurality of channels over which information is to be transmitted when the identity of all channels is not known by the receiver (19). The blind code detection device (15) generates a candidate channel list filled with the identity of selected channels out of the plurality of channels. A multi-user detection device (16), responsive to the blind code detection device (15), processes those channels is the candidate code list.
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公开(公告)号：DE602007010631D1
公开(公告)日：2010-12-30
申请号：DE602007010631
申请日：2007-07-05
Applicant: INTERDIGITAL TECH CORP
Inventor： PINHEIRO ANA LUCIA , RUDOLF MARIAN , HAIM JOHN W
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Patent Agency Ranking
公开(公告)号：DE602004026778D1
公开(公告)日：2010-06-02
申请号：DE602004026778
申请日：2004-12-22
Applicant: INTERDIGITAL TECH CORP
Inventor： BULTAN AYKUT , HAIM JOHN W , KAZAKEVICH LEONID
IPC: H04J1/00 , G08C17/00 , H04B1/00 , H04B1/16 , H04B1/38 , H04B7/005 , H04B7/01 , H04B7/015 , H04W52/28
Abstract: A wireless transmit/receive unit (WTRU) uses an oscillator providing accuracy for synchronized communications parameters in an active mode, and operates at reduced power during a discontinuous reception (DRX) mode. A real time clock (RTC) is used as the frequency standard during the reduced power operation, and a frequency adjustment is effected while the RTC is used as the frequency standard. By effecting the frequency adjustment, the RTC is able to be used as the frequency standard for substantial time periods, thereby reducing power consumption of the WTRU during the DRX mode.
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公开(公告)号：HK1114696A1
公开(公告)日：2008-11-07
申请号：HK08101170
申请日：2005-02-28
Applicant: INTERDIGITAL TECH CORP
Inventor： OZLUTURK FATIH , LOMP GARY R , HAIM JOHN W
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公开(公告)号：HK1101230A1
公开(公告)日：2007-10-12
申请号：HK07108778
申请日：2007-08-13
Applicant: INTERDIGITAL TECH CORP
Inventor： OZLUTURK FATIH M , LOMP GARY R , HAIM JOHN W
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公开(公告)号：AT338387T
公开(公告)日：2006-09-15
申请号：AT01952673
申请日：2001-07-12
Applicant: INTERDIGITAL TECH CORP
Inventor： HAIM JOHN W
Abstract: A system and a method of controlling transmitter power in a wireless communication system in which user data is processed as a multirate signal having a rate N(t) and in which the user data signal having rate N(t) for transmission. The transmission power is adjusted on a relatively slow basis based on quality of data received by a receiver of the transmitted data. The transmitter power is determined as a function of N(t)/M(t) such that a change in the data rate in the multiple channels or the rate of the transmission data signal is compensated in advance of a quality of data based adjustment associated with such data rate change. Preferably, the user data signal having rate N(t) is converted into the transmission data signal having the faster rate M(t) by repeating selected data bits whereby the energy per bit to noise spectrum density ratio is increased in the transmission data signal.
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公开(公告)号：CA2413937C
公开(公告)日：2006-04-11
申请号：CA2413937
申请日：1997-06-23
Applicant: INTERDIGITAL TECH CORP
Inventor： LOMP GARY R , HAIM JOHN W , OZLUTURK FATIH M
Abstract: A base station using a method of controlling initial power ramp-up in CDMA systems by using short codes is disclosed for controlling transmission power during the establishment of communications between a base station and another communicating unit is disclosed. The base station includes means for detecting a periodic signal having an initial predetermined power level, which is repeatedly sent to the base station at increasing power levels; means for transmitting a confirmation signal when a periodic signal having a sufficient power for detection is received; and means for receiving a call signal transmitted subsequent to the confirmation signal transmitting. The disclosed base station is particularly useful for overcoming the problems of power overshoot and interference to other base stations known in the art and to provide for a base station to quickly synchronize to the spreading code used by the communicating unit.
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