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1. 发明申请

WO2002023787A3 METHOD AND APPARATUS FOR SOFT INFORMATION GENERATION IN JOINT DEMODULATION OF CO-CHANNEL SIGNALS 审中-公开
公开(公告)号：WO2002023787A3
公开(公告)日：2002-03-21
申请号：PCT/US2001/023922
申请日：2001-09-10
申请人： ERICSSON, INC. , ARSLAN, Huseyin , MOLNAR, Karl, James
发明人： ARSLAN, Huseyin , MOLNAR, Karl, James
IPC分类号： H04L25/03
摘要： A method and apparatus generated soft values from a co-channel differentially encoded received signals. The soft values are generated by determining jointly detected symbols and corresponding joint metrics. A first potential nondetected metric sum is determined by flipping the current desired coherent detected symbol and keeping the interfered coherent detected symbol as is. A second potential nondetected metric sum is determined by flipping the previous desired coherent detected symbol and keeping the interfered coherent detected symbol as is. A minimum between the difference of the detected jont metrics and the two nondetected joint metrics is found. The soft values are then established based on the minimum difference metric.

2. 发明申请

WO2003052957A1 METHOD AND APPARATUS FOR TWO-USER JOINT DEMODULATION IN A SYSTEM HAVING TRANSMIT DIVERSITY 审中-公开
标题翻译：在具有发送多样性的系统中的两用户联合解调的方法和装置
公开(公告)号：WO2003052957A1
公开(公告)日：2003-06-26
申请号：PCT/US2002/039754
申请日：2002-12-12
申请人： ERICSSON, INC. , MOLNAR, Karl, James
发明人： MOLNAR, Karl, James
IPC分类号： H04B1/707
CPC分类号： H04B1/7105 , H04B7/0669 , H04L1/0618
摘要： Method and apparatus for two-user join demodulation in a system having transmit diversity. A receiver includes at least a detector unit (1513) and a channel estimation unit (1512), and exploits transmit diversity employed by at least one of two users or transmitters on a channel. Symbol detection (301, 401, 601, 701, 901, 1101, 1301) and channel estimation (303, 403, 603) are performed in block or batch fashion, or recursively on a symbol-by-symbol basis. Joint detection makes use of transmit diversity by at least one of the transmitting users. Channel estimates can be updated using channel tracking (904, 1304). If the signals from the first user and the second user are asynchronous, detection can be accomplished in part through reference to a pulse-shape component. The receiver may be incorporated into a mobile communication terminal.
摘要翻译：在具有发射分集的系统中用于双用户连接解调的方法和装置。接收机至少包括检测器单元（1513）和信道估计单元（1512），并且利用通道上的两个用户或发射机中的至少一个采用的发射分集。符号检测（301,401,601,701,901,1101,1301）和信道估计（303,403,603）以块或批量方式执行，或者逐个符号递归地执行。联合检测利用至少一个发送用户的发射分集。频道估计可以使用频道跟踪更新（904,1304）。如果来自第一用户和第二用户的信号是异步的，则可以部分地通过参考脉冲形状分量来实现检测。接收机可以并入到移动通信终端中。

3. 发明申请

WO2002084892A1 METHODS AND SYSTEMS FOR REDUCING INTERFERENCE USING CO-CHANNEL INTERFERENCE MAPPING 审中-公开
标题翻译：使用共通道干扰映射减少干扰的方法和系统
公开(公告)号：WO2002084892A1
公开(公告)日：2002-10-24
申请号：PCT/US2002/011202
申请日：2002-04-09
申请人： ERICSSON INC. , MOLNAR, Karl, James , DENT, Paul, W.
发明人： MOLNAR, Karl, James , DENT, Paul, W.
IPC分类号： H04B1/10
CPC分类号： H04B1/0003 , H04B1/1027 , H04B1/123 , H04B1/7105 , H04B2201/7071 , H04L1/0001 , H04L25/03178 , H04L25/03305 , H04L25/03331
摘要： Methods of demodulating a received signal are disclosed in which an interference map containing information regarding a plurality of candidate co-channel interference sources is provided. The information in the interference map regarding the plurality of candidate interference sources may be used to identify any of the candidate co-channel interference sources that comprise a dominant interference source. The received signal may then be demodulated in a manner that cancels at least part of the contribution of any identified dominant interference source by using the information regarding any such interference source contained in the interference map.
摘要翻译：公开了解调接收信号的方法，其中提供了包含关于多个候选同信道干扰源的信息的干涉图。关于多个候选干扰源的干涉图中的信息可以用于识别包括主要干扰源的任何候选同信道干扰源。然后可以以通过使用关于干扰图中包含的任何这种干扰源的信息来消除任何识别的主要干扰源的贡献的至少一部分的方式来解调所接收的信号。

4. 发明申请

WO2004093345A1 METHOD AND APPARATUS FOR FACILITATING SIGNAL DISCRIMINATION IN A WIRELESS NETWORK BY APPLYING KNOWN FREQUENCY OFFSETS 审中-公开
标题翻译：通过应用已知的频率偏移来提高无线网络信号识别的方法和装置
公开(公告)号：WO2004093345A1
公开(公告)日：2004-10-28
申请号：PCT/US2004/009015
申请日：2004-03-24
申请人： TELEFONAKTIEBOLAGET L M ERICSSON , MOLNAR, Karl, James
发明人： MOLNAR, Karl, James
IPC分类号： H04B7/06
CPC分类号： H04B7/0613 , H04B7/0837
摘要： Method and apparatus for demodulation in a system having known frequency offsets. First and second signals from two users occupy substantially the same bandwidth and use substantially the same carrier frequency, while the relative frequencies of the signals on different transmit antennas associated with a base station are adjusted to have known, specific frequency offsets. These known frequency offsets are used at the receiver to aid in estimating any known frequency errors and to demodulate the multiple transmitted signals. In addition to being useful for demodulation, known frequency offsets can be assigned to each of a plurality of base stations to facilitate identification of a particular base station. The approach can be used for any type of time domain multiple access (TDMA) system, including Global System for Mobile (GSM), or for code division multiple access (CDMA) systems.
摘要翻译：具有已知频率偏移的系统中的解调方法和装置。来自两个用户的第一和第二信号占据基本上相同的带宽并且使用基本相同的载波频率，而与基站相关联的不同发射天线上的信号的相对频率被调整为具有已知的特定频率偏移。这些已知的频率偏移在接收机处被使用以帮助估计任何已知的频率误差并解调多个发送的信号。除了可用于解调之外，已知的频率偏移可以分配给多个基站中的每一个，以便于识别特定的基站。该方法可用于任何类型的时域多址（TDMA）系统，包括全球移动系统（GSM）或码分多址（CDMA）系统。

5. 发明申请

WO1997028456A1 TERMINAL POSITION LOCATION USING MULTIPLE BEAMS 审中-公开
标题翻译：终端使用多个位置的位置
公开(公告)号：WO1997028456A1
公开(公告)日：1997-08-07
申请号：PCT/US1997001866
申请日：1997-01-31
申请人： ERICSSON INC.
发明人： ERICSSON INC. , MOLNAR, Karl, James , DENT, Paul, W.
IPC分类号： G01S05/14
CPC分类号： G01S5/14 , H04W16/28 , H04W64/00
摘要： Exemplary embodiments of the present invention describe terminal position location methods and systems. Relative powers of nearby spot beams which are generated by array antennas are determined. For example, powers from six neighboring spot beams relative to a center spot beam within which a mobile station is currently operating, can be measured relative to the power of the center spot beam. Using information from these measurements, the mobile stations position can be determined using, for example, an exponential model of the spot beam pattern.
摘要翻译：本发明的示例性实施例描述了终端位置定位方法和系统。确定由阵列天线产生的附近点波束的相对功率。例如，可以相对于中心点光束的功率测量相对于移动台当前正在其中操作的中心点波束的六个相邻点波束的功率。使用来自这些测量的信息，可以使用例如点波束图案的指数模型来确定移动台位置。

6. 发明申请

WO1997040588A1 METHOD AND APPARATUS FOR INTERFERENCE REJECTION WITH DIFFERENT BEAMS, POLARIZATIONS, AND PHASE REFERENCES 审中-公开
标题翻译：具有不同波段，极化和相位参考的干扰抑制方法和装置
公开(公告)号：WO1997040588A1
公开(公告)日：1997-10-30
申请号：PCT/US1997006343
申请日：1997-04-14
申请人： ERICSSON INC.
发明人： ERICSSON INC. , MOLNAR, Karl, James , BOTTOMLEY, Gregory, Edward , ÖSTMAN, Thomas
IPC分类号： H04B07/08
CPC分类号： H04B7/0854 , H04B7/0845 , H04B7/086 , H04B7/10 , H04L1/06 , H04L25/03331 , H04W16/28
摘要： A digital radio communication system includes processing to jointly mitigate the deleterious effects of fading, time dispersion and interference using interference rejection and diversity combining. The system employs a selection processor for preliminarily reducing the number of signals for interference rejection and diversity combining based on one or more criterion. The system accommodates signals from dual polarized antennas. In one particular embodiment, the system performs interference rejection and diversity combining by separating a received signal into its in-phase and quadrature components.
摘要翻译：数字无线电通信系统包括使用干扰抑制和分集组合来共同减轻衰落，时间分散和干扰的有害影响的处理。该系统采用选择处理器，用于基于一个或多个标准预先减少用于干扰抑制和分集组合的信号数量。该系统适应来自双极化天线的信号。在一个具体实施例中，系统通过将接收到的信号分离成其同相和正交分量来执行干扰抑制和分集组合。

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