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1. 发明申请

WO2005002314A3 METHOD AND APPARATUS FOR DETECTION OF PILOT SIGNAL WITH FREQUENCY OFFSET USING MULTI-STAGE CORRELATOR 审中-公开
标题翻译：使用多级相关器检测带有频率偏移的引导信号的方法和装置
公开(公告)号：WO2005002314A3
公开(公告)日：2006-07-20
申请号：PCT/US2004021308
申请日：2004-07-01
申请人： THOMSON LICENSING SA , LITWIN LOUIS ROBERT , KEEL ALTON SHELBORNE , GAO WEN
发明人： LITWIN LOUIS ROBERT , KEEL ALTON SHELBORNE , GAO WEN
IPC分类号： H01Q5/15 , H04B1/69 , H04B1/707
CPC分类号： H04B1/70752 , H04B1/7095 , H04B2201/70701
摘要： The disclosed embodiments relate to a method and apparatus for performing a pilot synchronization operation in a wireless communication system. The system may contain a plurality of sliding correlators (102, 106, 110, 114) that each receives a portion of a received correlation sequence and provides a partial correlation output. An absolute value block (118-124) may take the absolute value of each partial correlation output. Circuitry (126) may combine the absolute values of each of the partial correlation outputs to form a correlation output.
摘要翻译：所公开的实施例涉及用于在无线通信系统中执行导频同步操作的方法和装置。系统可以包含多个滑动相关器（102,106,110,114），每个滑动相关器接收所接收的相关序列的一部分并提供部分相关输出。绝对值块（118-124）可以取每个部分相关输出的绝对值。电路（126）可以组合每个部分相关输出的绝对值以形成相关输出。

2. 发明申请

WO2005002312A3 METHOD AND APPARATUS FOR FREQUENCY-ROBUST DETECTION OF A WIDEBAND CODE DIVISION MULTIPLE ACCESS SECONDARY SYNCHRONIZATION CHANNEL 审中-公开
标题翻译：用于频域编码部分多通道二次同步通道的频率稳定检测的方法和装置
公开(公告)号：WO2005002312A3
公开(公告)日：2006-05-18
申请号：PCT/US2004021304
申请日：2004-07-01
申请人： THOMSON LICENSING , LITWIN LOUIS ROBERT , KEEL ALTON SHELBORNE , GAO WEN
发明人： LITWIN LOUIS ROBERT , KEEL ALTON SHELBORNE , GAO WEN
IPC分类号： H01Q5/15 , H04L27/06
CPC分类号： H04B1/70735 , H04B1/7083 , H04B1/7093
摘要： The disclosed embodiments may relate to a method and apparatus for performing a correlation with respect to a received signal. A first correlator (108) may correlate for a real part of a first characteristic of the received signal to produce a first real correlated signal. A second correlator (110) may correlate for an imaginary part of the first characteristic of the received signal to produce a first imaginary correlated signal. A third correlator (114) may correlate for a real part of a second characteristic of the received signal to produce a second real correlated signal. A fourth correlator (116) may correlate for an imaginary part of the second characteristic of the received signal to produce a second imaginary correlated signal. Logic (118) may combine a signal that corresponds to the first real correlated signal, a signal that corresponds to the first imaginary correlated signal, the second real correlated signal and the second imaginary correlated signal to produce a real part of a frequency adjusted signal and an imaginary part of the frequency adjusted signal.
摘要翻译：所公开的实施例可以涉及用于对接收到的信号执行相关的方法和装置。第一相关器（108）可以对接收信号的第一特性的实部进行相关以产生第一实相关信号。第二相关器（110）可以对接收信号的第一特性的虚部进行相关，以产生第一虚相关信号。第三相关器（114）可以对接收信号的第二特性的实部进行相关，以产生第二实相关信号。第四相关器（116）可以对接收信号的第二特性的虚部进行相关，以产生第二虚相关信号。逻辑（118）可以组合对应于第一实相关信号的信号，对应于第一虚相关信号的信号，第二实相关信号和第二虚相关信号，以产生频率调整信号的实部，频率调整信号的虚部。

3. 发明申请

WO03081827A2 METHOD AND APPARATUS FOR INDICATING THE PRESENCE OF A WIRELESS LOCAL AREA NETWORK BY DETECTING SIGNATURE SEQUENCES 审中-公开
标题翻译：通过检测标志序列来指示无线局域网的存在的方法和装置
公开(公告)号：WO03081827A2
公开(公告)日：2003-10-02
申请号：PCT/US0306764
申请日：2003-03-05
申请人： THOMSON LICENSING SA , RAMASWAMY KUMAR , LITWIN LOUIS ROBERT , KNUTSON PAUL GOTHARD , GAO WEN , WANG CHARLES CHUANMING
发明人： RAMASWAMY KUMAR , LITWIN LOUIS ROBERT , KNUTSON PAUL GOTHARD , GAO WEN , WANG CHARLES CHUANMING
IPC分类号： H04L12/28 , H04W36/00 , H04W36/14 , H04W48/18 , H04W52/02 , H04L
CPC分类号： H04W48/18 , H04W36/0088 , H04W36/14 , H04W52/0229 , H04W52/0245 , H04W52/0254 , Y02D70/00 , Y02D70/142 , Y02D70/164
摘要： A method and apparatus for detecting the presence of a wireless local area network (WLAN) (104) detects at least one signature sequence in a radio frequency (RF) signal associated with a WLAN (104). The present invention indicates the presence of a WLAN (104) in response to the detection of the at least one signature sequence in the RF signal.
摘要翻译：用于检测无线局域网（WLAN）（104）的存在的方法和装置检测与WLAN（104）相关联的射频（RF）信号中的至少一个签名序列。本发明指示响应于RF信号中的至少一个签名序列的检测而存在WLAN（104）。

4. 发明专利

AU2003254311A1 Frame synchronization in a universal mobile telephone system receiver 未知
公开(公告)号：AU2003254311A1
公开(公告)日：2005-03-07
申请号：AU2003254311
申请日：2003-08-04
申请人： THOMSON LICENSING SA , LITWIN LOUIS ROBERT
发明人： LITWIN LOUIS ROBERT , GAO WEN
IPC分类号： H04B7/212 , H04B7/26 , H04J3/06 , H04L12/56 , H04W56/00 , H04W74/04 , H04W84/04

5. 发明申请

WO2004100475A3 ADAPTIVE SOFT DEMODULATION FOR RECEPTION OF DISTORTED SIGNALS 审中-公开
标题翻译：用于接收失真信号的自适应软解调
公开(公告)号：WO2004100475A3
公开(公告)日：2005-01-13
申请号：PCT/US2004013733
申请日：2004-04-24
申请人： THOMSON LICENSING SA , KOSLOV JOSHUA , RAMASWAMY KUMAR , GAO WEN
发明人： KOSLOV JOSHUA , RAMASWAMY KUMAR , GAO WEN
IPC分类号： H04B7/185 , H04L1/00 , H04L25/06
CPC分类号： H04B7/18517 , H04L1/0016 , H04L1/005 , H04L27/366
摘要： A satellite communications system comprises a transmitting ground station, including a transmitter and a receiver, a satellite transponder and a receiving ground station. The transmitter transmits an uplink signal to the satellite transponder, which broadcasts the received uplink signal as a downlink signal to the receiving ground station. The transmitting ground station monitors the downlink signal through the receiver and calculates log-likelihood ratios (LLRs) as a function of the monitored downlink signal. These LLRs are illustratively stored in a look-up table, which are then transmitted to the receiving ground station for use in recovering data from a received data signal.
摘要翻译：一种卫星通信系统包括一个发射地面站，包括发射机和接收机，卫星转发器和接收地面站。发射机向卫星转发器发送上行链路信号，卫星转发器将接收到的上行链路信号作为下行链路信号广播到接收地面站。发射地面站通过接收机监测下行链路信号，并根据被监视的下行链路信号计算对数似然比（LLR）。这些LLR被示例性地存储在查找表中，然后将其发送到接收地面站，以用于从接收的数据信号恢复数据。

6. 发明申请

WO2004100478B1 APPARATUS AND METHOD FOR DECODING IN A HIERARCHICAL MODULATION SYSTEM 审中-公开
标题翻译：用于在分级调制系统中解码的装置和方法
公开(公告)号：WO2004100478B1
公开(公告)日：2005-07-14
申请号：PCT/US2004013735
申请日：2004-04-24
申请人： THOMSON LICENSING SA , KOSLOV JOSHUA , GAO WEN
发明人： KOSLOV JOSHUA , GAO WEN
IPC分类号： H04B7/185 , H04L1/00 , H04L27/34 , H04L25/06 , H04L27/38
CPC分类号： H04B7/18517 , H04L1/0016 , H04L1/005 , H04L27/366
摘要： A satellite receiver receives a hierarchical modulation based signal, which has at least an upper layer (UL) and a lower layer (LL), and simultaneously or independently recovers therefrom data conveyed in the UL signal and data conveyed in the LL signal.
摘要翻译：卫星接收器接收至少具有上层（UL）和下层（LL）的基于分层调制的信号，并且同时或独立地恢复在UL信号中传送的数据和在LL信号中传送的数据。

7. 发明申请

WO2004100478A2 APPARATUS AND METHOD FOR DECODING IN A HIERARCHICAL MODULATION SYSTEM 审中-公开
标题翻译：在分层调制系统中解码的装置和方法
公开(公告)号：WO2004100478A2
公开(公告)日：2004-11-18
申请号：PCT/US2004013735
申请日：2004-04-24
申请人： THOMSON LICENSING SA , KOSLOV JOSHUA , GAO WEN
发明人： KOSLOV JOSHUA , GAO WEN
IPC分类号： H04B7/185 , H04L1/00 , H04L27/00
CPC分类号： H04B7/18517 , H04L1/0016 , H04L1/005 , H04L27/366
摘要： A satellite receiver receives a hierarchical modulation based received signal, which has at least an upper layer (UL) and a lower layer (LL), and simultaneously recovers therefrom data conveyed in the UL signal and data conveyed in the LL signal.
摘要翻译：卫星接收机接收具有至少上层（UL）和下层（LL）的基于层次调制的接收信号，并且同时从UL信号中传送的数据和在LL信号中传送的数据中恢复。

8. 发明申请

WO2010138201A3 IMPROVED SYNC DETECTION AND FREQUENCY RECOVERY FOR SATELLITE SYSTEMS 审中-公开
标题翻译：改进的卫星系统的同步检测和频率恢复
公开(公告)号：WO2010138201A3
公开(公告)日：2011-03-24
申请号：PCT/US2010001572
申请日：2010-05-28
申请人： THOMSON LICENSING , KNUTSON PAUL GOTHARD , SCHMITT DIRK , GAO WEN
发明人： KNUTSON PAUL GOTHARD , SCHMITT DIRK , GAO WEN
IPC分类号： H04L7/04 , H04L27/00
CPC分类号： H04L27/2678 , H04H40/90 , H04L7/0062 , H04L7/042 , H04L7/10 , H04L27/0014 , H04L27/2613 , H04L27/2656 , H04L27/2679 , H04L2027/0053 , H04L2027/0067 , H04W56/005
摘要： A method of frame sync detection is described. A first and second differential correlation of a data stream is calculated, at a plurality of delay and conjugate multipliers. The first and second differential correlations are convolved with a previous set of differential correlations. A correlation peak is calculated, at a sync detector, using the convolved differential correlations, to detect a frame sync.
摘要翻译：描述帧同步检测的方法。在多个延迟和共轭乘数下，计算数据流的第一和第二差分相关。第一和第二差分相关性与先前的差分相关集合进行卷积。在同步检测器处，使用卷积差分相关来计算相关峰值，以检测帧同步。

9. 发明申请

WO2011008238A2 METHOD AND APPARATUS FOR ROBUST AND HIGH EFFICIENCY FEC FRAME HEADER RECOVERY 审中-公开
标题翻译：用于鲁棒性和高效FEC帧头部恢复的方法和设备
公开(公告)号：WO2011008238A2
公开(公告)日：2011-01-20
申请号：PCT/US2010001844
申请日：2010-06-28
申请人： THOMSON LICENSING , CHEN HOU-SHIN , GAO WEN
发明人： CHEN HOU-SHIN , GAO WEN
IPC分类号： H04L1/00
CPC分类号： H04L1/0057 , H04L1/0004 , H04L1/0045 , H04L1/0072 , H04L27/38
摘要： Methods and apparatus for FEC frame header detection are provided, suitable for use in a DVB-C2 receiver. A first method comprises demodulating with a quadrature phase shift keying (QPSK) demapper, followed by correlation and symmetry measures for detection of a robust FEC header. A second method comprises demodulating with a 16 quadrature amplitude modulation (QAM) demapper, followed by correlation and symmetry measures for detection of a high efficiency FEC header. Another embodiment comprises using both the first and second methods to find the FEC header because the first symbol of the FEC frame header may be sent either in robust mode or in high efficiency mode. There is also provided a method and apparatus for generating an alternate decision statistic for determining detection of the FEC frame header.
摘要翻译：提供了适用于DVB-C2接收机的FEC帧头检测方法和装置。第一种方法包括用正交相移键控（QPSK）去映射器解调，然后是用于检测鲁棒FEC头部的相关和对称测量。第二种方法包括用16正交幅度调制（QAM）去映射器解调，然后是用于检测高效FEC头部的相关和对称测量。另一个实施例包括使用第一和第二方法来找到FEC报头，因为FEC帧报头的第一个符号可以以鲁棒模式或高效率模式发送。还提供了一种用于生成用于确定FEC帧头的检测的替代决策统计量的方法和设备。

10. 发明申请

WO2009002439A3 APPARATUS AND METHOD FOR USE IN A MOBILE/HANDHELD COMMUNICATIONS SYSTEM 审中-公开
标题翻译：用于移动/手持通信系统的装置和方法
公开(公告)号：WO2009002439A3
公开(公告)日：2009-02-26
申请号：PCT/US2008007669
申请日：2008-06-20
申请人： THOMSON LICENSING , GAO WEN , ZHANG BENYUAN , KNUTSON PAUL
发明人： GAO WEN , ZHANG BENYUAN , KNUTSON PAUL
IPC分类号： H04L1/00 , H04H20/42 , H04N5/44 , H04N7/62
CPC分类号： H04L27/02 , H03M13/1102 , H03M13/6356 , H03M13/6362 , H04H20/22 , H04H20/426 , H04H20/57 , H04H20/95 , H04H60/43 , H04L1/0041 , H04L1/0059 , H04L1/0065 , H04L1/0067 , H04L1/0071 , H04L1/0072 , H04L25/03343 , H04N21/242 , H04N21/4302
摘要： An Advanced Television Systems Committee Digital Television (ATSC DTV) transmitter transmits a digital multiplex that includes a legacy DTV channel and a mobile DTV channel. The mobile DTV channel is conveyed in mobile packets that comprise mobile data and additional mobile training information. A mobile packet comprises 207 bytes wherein 2 bytes are header information, 20 bytes are Reed-Solomon (RS) parity information and 185 bytes convey mobile data and mobile training information. The mobile training information is inserted into mobile packets such that the additional training information appears in contiguous positions after convolutional interleaving.
摘要翻译：高级电视系统委员会数字电视（ATSC DTV）发射机发送包括传统DTV信道和移动DTV信道的数字多路复用。在包括移动数据和附加的移动训练信息的移动分组中传送移动DTV信道。移动分组包括207字节，其中2个字节是报头信息，20个字节是里德 - 所罗门（RS）奇偶校验信息，185个字节传送移动数据和移动训练信息。将移动训练信息插入到移动分组中，使得附加训练信息在卷积交织之后出现在相邻位置。

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