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公开(公告)号：DE60304689D1
公开(公告)日：2006-05-24
申请号：DE60304689
申请日：2003-02-04
Applicant: INTERDIGITAL TECH CORP
Abstract: Method and apparatus for synchronizing base stations employing an independent synchronizing source or identifying a base station as a master source. An RNC (C-RNC) or a base station may designate one base station or a UE to acquire measurements derived from base stations to achieve synchronization. Synchronization activities may be regularly scheduled or may be undertaken when periodic measurements indicate that a drift value exceeds a given threshold.
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公开(公告)号：DE69900818T2
公开(公告)日：2002-08-14
申请号：DE69900818
申请日：1999-03-17
Applicant: INTERDIGITAL TECH CORP
Inventor： POLAN JEFFREY , DICK G , KAZAKEVICH LEONID , OZLUTURK M , REGIS T , TURNER RICHARD
Abstract: The present invention provides a base station architecture that is modular in configuration, lowering the initial cost of implementing a new CDMA telecommunication system for a defined geographical region while allowing for future capacity. The scalable architecture is assembled from a digital base station unit that is configured to support a plurality of simultaneous wireless calls connecting to a conventional public switched telephone network. For initial startup, two base station units are deployed for redundancy in case of a single failure. Additional base station units may be added when the need arises for extra traffic capacity. If sectorization is required, the base station units may be directionally oriented. Coupled to and remote from each base station unit are two amplified antenna modules that contain an omni-directional or an external directional antenna, a high power RF amplifier for transmitted frequencies and a low noise amplifier for received frequencies. A separate power supply module capable of supporting two base station units provides continued service in the event of a mains power outage.
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公开(公告)号：DE69900818D1
公开(公告)日：2002-03-14
申请号：DE69900818
申请日：1999-03-17
Applicant: INTERDIGITAL TECH CORP
Inventor： POLAN JEFFREY , DICK G , KAZAKEVICH LEONID , OZLUTURK M , REGIS T , TURNER RICHARD
Abstract: The present invention provides a base station architecture that is modular in configuration, lowering the initial cost of implementing a new CDMA telecommunication system for a defined geographical region while allowing for future capacity. The scalable architecture is assembled from a digital base station unit that is configured to support a plurality of simultaneous wireless calls connecting to a conventional public switched telephone network. For initial startup, two base station units are deployed for redundancy in case of a single failure. Additional base station units may be added when the need arises for extra traffic capacity. If sectorization is required, the base station units may be directionally oriented. Coupled to and remote from each base station unit are two amplified antenna modules that contain an omni-directional or an external directional antenna, a high power RF amplifier for transmitted frequencies and a low noise amplifier for received frequencies. A separate power supply module capable of supporting two base station units provides continued service in the event of a mains power outage.
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公开(公告)号：DE60311275T2
公开(公告)日：2007-10-18
申请号：DE60311275
申请日：2003-08-08
Applicant: INTERDIGITAL TECH CORP
Inventor： DICK G , TERRY E , CHAO YI-JU
IPC: H04J3/04 , H04J3/16 , H04J3/22 , H04L1/18 , H04L12/28 , H04L12/56 , H04L29/06 , H04W28/06 , H04W28/14 , H04W80/02 , H04W88/02
Abstract: The present invention allows for effective sharing of the hardware memory of a wireless transmit receive unit (WTRU). The memory will be shared among various buffers of different entities. More particularly, memory will be shared among the MAC reordering buffers and the RLC reception buffers.
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公开(公告)号：DE60311275D1
公开(公告)日：2007-03-08
申请号：DE60311275
申请日：2003-08-08
Applicant: INTERDIGITAL TECH CORP
Inventor： DICK G , TERRY E , CHAO YI-JU
IPC: H04J3/04 , H04J3/16 , H04J3/22 , H04L1/18 , H04L12/28 , H04L12/56 , H04L29/06 , H04W28/06 , H04W28/14 , H04W80/02 , H04W88/02
Abstract: The present invention allows for effective sharing of the hardware memory of a wireless transmit receive unit (WTRU). The memory will be shared among various buffers of different entities. More particularly, memory will be shared among the MAC reordering buffers and the RLC reception buffers.
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Patent Agency Ranking
公开(公告)号：DE69921693T2
公开(公告)日：2005-12-01
申请号：DE69921693
申请日：1999-12-07
Applicant: INTERDIGITAL TECH CORP
Inventor： OZLUTURK M , DICK G , KAZAKEVICH LEONID
Abstract: The present invention involves a system (61) for balancing a signal having I and Q components (63I, 63Q), characterized in that the system comprises: means for cross correlating (75) the I and Q components (63I, 63Q) to produce a cross correlation product (77); means for adjusting (93I, 93Q) a gain of each I and Q component (63I, 63Q) in accordance with said cross correlation product (77); and means for adding (69I, 69Q) the I component (63I) with an adjusted Q component (95I), and the Q component (63Q) with an adjusted I component (95Q) to produce a phase-balanced signal (73I, 73Q).
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公开(公告)号：DE60110830D1
公开(公告)日：2005-06-16
申请号：DE60110830
申请日：2001-12-13
Applicant: INTERDIGITAL TECH CORP
Inventor： DICK G , IACONO LUCIA , STERN-BERKOWITZ JANET
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公开(公告)号：DE1163735T1
公开(公告)日：2002-05-23
申请号：DE00916600
申请日：2000-03-22
Applicant: INTERDIGITAL TECH CORP
Inventor： ZEIRA ARIELA , SHIN SUNG-HYUK , DICK G
IPC: H04B1/04 , H04B7/005 , H04B7/216 , H04B7/26 , H04J3/00 , H04W52/06 , H04W52/08 , H04W52/10 , H04W52/12 , H04W52/18 , H04W52/20 , H04W52/22 , H04W52/24 , H04W52/50 , H04W52/54
Abstract: Outer loop/weighted open loop power control controls transmission power levels in a spread spectrum time division duplex communication station. A first communication station (110) transmits a communication to a second communication station including target adjustment information generated at the first station on the basis of measured error rates of communications from the second station to the first station. The second station receives the communication and measures its received power level. Based on in part the received communication's power level and the communication's transmission power level, a path loss estimate is determined. A quality of the path loss estimate is also determined. The transmission power level for a communication from the second station to the first station is based on in part weighting the path loss estimate in response to the estimate's quality and based on the receive target adjusted by the target adjustment information transmitted from the first station.
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公开(公告)号：DE1142149T1
公开(公告)日：2002-04-04
申请号：DE99968880
申请日：1999-12-14
Applicant: INTERDIGITAL TECH CORP
Inventor： DICK G , DENNEAN CHARLES , ZEIRA ELDAD , PAN JUNG-LIN , SHIN SUNG-HYUK , ZEIRA ARIELA
Abstract: The present invention relates to a detector that detects a transmitted digital signature using the energy output from a matched filter. The energies are tabulated according to an anticipated signature pattern for variable transmission distances. The tabulation accounts for expected round trip transmission delays and allows processing of the accumulated symbols to derive a correct signature whether coherent or signature coding is used and multiple Doppler channels are present.
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公开(公告)号：DE60212961T2
公开(公告)日：2007-03-01
申请号：DE60212961
申请日：2002-05-13
Applicant: INTERDIGITAL TECH CORP
Inventor： TERRY E , DICK G , MILLER M , ZEIRA ELDAD , ZEIRA ARIELA
Abstract: A wireless hybrid (TDMA/CDMA) user equipment is disclosed. The user equipment receives and recovers signaled information of code and timeslot assignments of the user equipment to support a radio frequency communication. From the signaling information, an identifier of a plurality of assigned timeslots and an indication of a first and last code of a set of consecutive codes are recovered. The last code is identified by an identifier associated with the last code, and the same set of consecutive codes is assigned to each of the plurality of assigned timeslots.
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