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11. 发明专利

AU758183B2 Reduced global positioning system receiver code shift search space for a cellular telephone system 未知
公开(公告)号：AU758183B2
公开(公告)日：2003-03-20
申请号：AU1086499
申请日：1998-10-14
申请人： ERICSSON INC
发明人： CAMP WILLIAM O JR , ZANGI KAMBIZ , RAMESH RAJARAM
IPC分类号： G01S1/00 , G01S5/00 , G01S5/02 , G01S19/06 , G01S19/08 , G01S19/13 , G01S19/21 , G01S19/25 , G01S19/37 , H04B7/26 , H04W64/00 , G01S5/14 , G01S1/04
摘要： A Global Positioning System (GPS) receiver located at a base station of a cellular telephone network determines the location of the base station and obtains GPS ephemeris and, if available, timing information. A server uses the obtained information to calculate auxiliary information for use by a GPS receiver. The base station transmits the auxiliary information to the GPS receiver which is located within a cellular telephone operating within the service area of the base station. The cellular telephone GPS receiver uses the auxiliary information to determine the location of the cellular telephone and transmits location information to the cellular telephone network via the cellular telephone and the base station.

12. 发明专利

BR9813061A 未知
公开(公告)号：BR9813061A
公开(公告)日：2000-08-22
申请号：BR9813061
申请日：1998-10-14
申请人： ERICSSON INC
发明人： CAMP WILLIAM O , ZANGI KAMBIZ , RAMESH RAJARAM
IPC分类号： G01S1/00 , G01S5/00 , G01S5/02 , G01S19/06 , G01S19/08 , G01S19/13 , G01S19/21 , G01S19/25 , G01S19/37 , H04B7/26 , H04W64/00 , G01S5/14 , G01S1/04
摘要： A Global Positioning System (GPS) receiver located at a base station of a cellular telephone network determines the location of the base station and obtains GPS ephemeris and, if available, timing information. A server uses the obtained information to calculate auxiliary information for use by a GPS receiver. The base station transmits the auxiliary information to the GPS receiver which is located within a cellular telephone operating within the service area of the base station. The cellular telephone GPS receiver uses the auxiliary information to determine the location of the cellular telephone and transmits location information to the cellular telephone network via the cellular telephone and the base station.

13. 发明申请

WO2004075459A3 TRANSMIT DIVERSITY AND SEPARATING MULTIPLE LOOPBACK SIGNALS 审中-公开
标题翻译：发射多样性和分离多重回波信号
公开(公告)号：WO2004075459A3
公开(公告)日：2005-07-14
申请号：PCT/US2004003911
申请日：2004-02-10
申请人： ERICSSON INC , DENT PAUL , ZANGI KAMBIZ
发明人： DENT PAUL , ZANGI KAMBIZ
IPC分类号： H04B1/707 , H04B7/005 , H04B7/02 , H04B7/06 , H04L1/00 , H04L1/24 , H04L25/02 , H04L25/03 , H04L27/36 , H04B17/00
CPC分类号： H04L25/03343 , H04B1/7105 , H04B7/005 , H04B7/022 , H04B7/0615 , H04B7/0617 , H04B7/0619 , H04L1/243 , H04L25/0202 , H04L25/0204 , H04L25/0212 , H04L25/0226 , H04L25/0228 , H04L25/0244 , H04L27/367 , H04W52/42
摘要： A wireless communication network processes composite loop-back signals received at one or more network antennas (54) from a plurality of mobile stations (16), each transmitting an individual, mobile-specific loop-back signal. Using its knowledge of the prior network-transmitted signal(s) from which the mobile stations derive their individual loop-back signals, and its knowledge of the mobile-specific loop-back signal modifications made by each of the mobile stations, the network derives mobile-specific downlink channel information based on processing the composite loop-back signals. That is, use of the mobile-specific loop-back signals enables the network to determine downlink channel estimates as between each participating network antenna and each participating mobile station to be used for transmit signal interference and/or power precompensation, for example. Mobile stations incorporate loop-back signal sample processors used to impart mobile-specific modifications to signal samples obtained from network-transmitted signals. The modified signal samples, thus "imprinted," are then transmitted back to the network.
摘要翻译：无线通信网络处理在来自多个移动站（16）的一个或多个网络天线（54）处接收的复合环回信号，每个发送单独的移动专用环回信号。使用其关于移动台从其中导出其各自的环回信号的先前的网络发送信号的知识以及由每个移动站进行的移动专用环回信号修改的知识，网络导出基于处理复合环回信号的移动专用下行链路信道信息。也就是说，使用移动专用环回信号使得网络能够确定例如在每个参与的网络天线和每个参与的移动台之间的下行链路信道估计，以用于发射信号干扰和/或功率预补偿。移动台包含环回信号采样处理器，用于对从网络传输信号获得的信号样本进行移动专用修改。然后将经修改的信号样本“印迹”传送回网络。

14. 发明专利

AT513399T 未知
公开(公告)号：AT513399T
公开(公告)日：2011-07-15
申请号：AT07115021
申请日：2001-01-18
申请人： ERICSSON INC
发明人： ZANGI KAMBIZ , RAMESH RAJARAM , HUI DENNIS
IPC分类号： H04L25/02
摘要： Methods, systems and receiver devices are provided which may provide improved receiver performance in obtaining estimates of the complex-valued baseband channel in the presence of colored baseband noise. In various embodiments of the present invention, systems and methods are provided in which, over each synchronization signal period or other determinate information window, the channel coefficients and the color of the baseband noise are concurrently estimated. Thus, both the channel coefficients and the color of the noise are estimated, rather than assuming white noise, and channel coefficients may be provided that account for the color of the noise These estimates may be provided for each burst of a communication and may result in an improved channel estimate in the presence of colored noise. The baseband noise can become colored due to, for example, having a non-Nyquist receive filter, due to the presence of a colored co-channel interferer, or due to the presence of an adjacent channel interferer. The concurrent estimates of the color of the noise and channel coefficients may be provided iteratively or by selection of a best result among a plurality of candidate noise color assumptions.

15. 发明专利

AT465582T 未知
公开(公告)号：AT465582T
公开(公告)日：2010-05-15
申请号：AT00936197
申请日：2000-05-23
申请人： ERICSSON INC
发明人： ZANGI KAMBIZ
IPC分类号： H04L25/02 , H04L27/01 , H04B3/10
摘要： A method of estimating and/or tracking time varying radio channels comprises the step of receiving signals transmitted over the channels and converting the signals to digital samples for processing. Positions of fading rays of the channel medium are determined. Impulse response of a channel medium are estimated for each of the estimated positions. Estimates of the time varying radio channels are then calculated using the digital samples and the estimated impulse responses.

16. 发明专利

GB2404824B Mobile station loop-back signal processing 未知
公开(公告)号：GB2404824B
公开(公告)日：2006-03-01
申请号：GB0424647
申请日：2003-04-25
申请人： ERICSSON INC
发明人： DENT PAUL W , ZANGI KAMBIZ , KRASNY LEONID
IPC分类号： H04L25/03 , H04B1/707 , H04B7/005 , H04B7/02 , H04B7/06 , H04L1/00 , H04L1/16 , H04L1/24 , H04L25/02 , H04L27/36 , H04Q7/32 , H04Q7/38

17. 发明专利

AU2003223745A8 Mobile station loop-back signal processing 未知
公开(公告)号：AU2003223745A8
公开(公告)日：2003-11-17
申请号：AU2003223745
申请日：2003-04-25
申请人： ERICSSON INC
发明人： DENT PAUL , ZANGI KAMBIZ , KRASNY LEONID
IPC分类号： H04B1/707 , H04B7/005 , H04B7/02 , H04B7/06 , H04L1/00 , H04L1/16 , H04L25/02 , H04L25/03 , H04L27/36 , H04L1/24 , H04Q7/32 , H04Q7/38

18. 发明专利

AU1605201A Reduced search symbol estimation algorithm 未知
公开(公告)号：AU1605201A
公开(公告)日：2001-06-18
申请号：AU1605201
申请日：2000-11-13
申请人： ERICSSON INC
发明人： KHAYRALLAH ALI S , BOTTOMLEY GREGORY E , KOILPILLAI DAVID , ZANGI KAMBIZ
IPC分类号： H03M13/39 , H03M13/45

19. 发明专利

AU2003223745A1 MOBILE STATION LOOP-BACK SIGNAL PROCESSING 未知
公开(公告)号：AU2003223745A1
公开(公告)日：2003-11-17
申请号：AU2003223745
申请日：2003-04-25
申请人： ERICSSON INC
发明人： DENT PAUL , ZANGI KAMBIZ , KRASNY LEONID
IPC分类号： H04B1/707 , H04B7/005 , H04B7/02 , H04B7/06 , H04L1/00 , H04L1/16 , H04L25/02 , H04L25/03 , H04L27/36 , H04L1/24

20. 发明专利

DE69810335T2 未知
公开(公告)号：DE69810335T2
公开(公告)日：2003-08-28
申请号：DE69810335
申请日：1998-10-14
申请人： ERICSSON INC
发明人： CAMP O , ZANGI KAMBIZ , RAMESH RAJARAM
IPC分类号： G01S1/00 , G01S5/00 , G01S5/02 , G01S19/06 , G01S19/08 , G01S19/13 , G01S19/21 , G01S19/25 , G01S19/37 , H04B7/26 , H04W64/00 , G01S5/14 , G01S1/04
摘要： A Global Positioning System (GPS) receiver located at a base station of a cellular telephone network determines the location of the base station and obtains GPS ephemeris and, if available, timing information. A server uses the obtained information to calculate auxiliary information for use by a GPS receiver. The base station transmits the auxiliary information to the GPS receiver which is located within a cellular telephone operating within the service area of the base station. The cellular telephone GPS receiver uses the auxiliary information to determine the location of the cellular telephone and transmits location information to the cellular telephone network via the cellular telephone and the base station.

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