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1. 发明授权

US08331309B2 Efficient and consistent wireless downlink channel configuration 失效
标题翻译：高效一致的无线下行链路信道配置
公开(公告)号：US08331309B2
公开(公告)日：2012-12-11
申请号：US12400618
申请日：2009-03-09
申请人： Gene Marsh , Srikanth Gummadi , William Burchill , Michael Wengler
发明人： Gene Marsh , Srikanth Gummadi , William Burchill , Michael Wengler
IPC分类号： H04W4/00
CPC分类号： H04W72/042 , H04B2201/70701 , H04B2201/70702 , H04J11/0069 , H04W4/00 , H04W72/082
摘要： A configuration for downlink signals in a wireless communication system, methods of configuring the downlink signals, apparatus for generating the downlink signals, and apparatus for receiving and processing the downlink signals are described herein. Downlink signals in a wireless communication system are reconfigured in series of frames, with each frame carrying a preamble that provides fast cell search and system acquisition. In particular, the preamble includes a primary preamble and a secondary preamble, where the primary preamble is common to all sectors in a base station and all base stations in a system and the secondary preamble is effectively unique to each base station, and may be further distinguished based on a sector basis. In addition, pilot signals are aligned with base stations to occur at the same time within a frame and the PN sequence values of the pilot signals are based on a cell identification an antenna identification, thereby enabling prediction of pilots transmitted by interferers or neighboring base stations from acquisition of secondary preambles. Also, the pilot bits are selectively assigned from a center of an operating band outward. Due to the pilot placement and pilot modulation, the scheme enables interference mitigation and channel estimation without knowing the frequency bandwidth, which is especially advantageous in broadcast channel systems.
摘要翻译：这里描述了无线通信系统中的下行链路信号的配置，配置下行链路信号的方法，用于生成下行链路信号的装置，以及用于接收和处理下行链路信号的装置。在无线通信系统中的下行链路信号被重新配置为一系列帧，每个帧携带提供快速小区搜索和系统获取的前同步码。具体地，前导码包括主前同步码和次前导码，其中主前同步码对于基站中的所有扇区和系统中的所有基站是公共的，并且次前导码对于每个基站是有效唯一的，并且可以进一步区分基于行业基础。此外，导频信号与基站对准，在帧内同时发生，导频信号的PN序列值基于小区识别天线识别，从而能够预测由干扰源或相邻基站发射的导频从获得二级前导码。此外，从操作频带的中心向外选择性地分配导频比特。由于导频放置和导频调制，该方案能够在不知道频带宽度的情况下实现干扰减轻和信道估计，这在广播信道系统中特别有利。

2. 发明申请

US20100061333A1 EFFICIENT AND CONSISTENT WIRELESS DOWNLINK CHANNEL CONFIGURATION 失效
标题翻译：有效和一致的无线下行通道配置
公开(公告)号：US20100061333A1
公开(公告)日：2010-03-11
申请号：US12400618
申请日：2009-03-09
申请人： Gene Marsh , Srikanth Gummadi , William Burchill , Michael Wengler
发明人： Gene Marsh , Srikanth Gummadi , William Burchill , Michael Wengler
IPC分类号： H04W72/12
CPC分类号： H04W72/042 , H04B2201/70701 , H04B2201/70702 , H04J11/0069 , H04W4/00 , H04W72/082
摘要： A configuration for downlink signals in a wireless communication system, methods of configuring the downlink signals, apparatus for generating the downlink signals, and apparatus for receiving and processing the downlink signals are described herein. Downlink signals in a wireless communication system are reconfigured in series of frames, with each frame carrying a preamble that provides fast cell search and system acquisition. In particular, the preamble includes a primary preamble and a secondary preamble, where the primary preamble is common to all sectors in a base station and all base stations in a system and the secondary preamble is effectively unique to each base station, and may be further distinguished based on a sector basis. In addition, pilot signals are aligned with base stations to occur at the same time within a frame and the PN sequence values of the pilot signals are based on a cell identification an antenna identification, thereby enabling prediction of pilots transmitted by interferers or neighboring base stations from acquisition of secondary preambles. Also, the pilot bits are selectively assigned from a center of an operating band outward. Due to the pilot placement and pilot modulation, the scheme enables interference mitigation and channel estimation without knowing the frequency bandwidth, which is especially advantageous in broadcast channel systems.
摘要翻译：这里描述了无线通信系统中的下行链路信号的配置，配置下行链路信号的方法，用于生成下行链路信号的装置，以及用于接收和处理下行链路信号的装置。在无线通信系统中的下行链路信号被重新配置为一系列帧，每个帧携带提供快速小区搜索和系统获取的前同步码。具体地，前导码包括主前同步码和次前导码，其中主前同步码对于基站中的所有扇区和系统中的所有基站是公共的，并且次前导码对于每个基站是有效唯一的，并且可以进一步区分基于行业基础。此外，导频信号与基站对准，在帧内同时发生，导频信号的PN序列值基于小区识别天线识别，从而能够预测由干扰源或相邻基站发射的导频从获得二级前导码。此外，从操作频带的中心向外选择性地分配导频比特。由于导频放置和导频调制，该方案能够在不知道频带宽度的情况下实现干扰减轻和信道估计，这在广播信道系统中特别有利。

3. 发明授权

US06959053B2 Method and apparatus for searching for a pre-defined code in a bit stream 失效
标题翻译：用于在比特流中搜索预定义代码的方法和装置
公开(公告)号：US06959053B2
公开(公告)日：2005-10-25
申请号：US09903645
申请日：2001-07-13
申请人： Ronald H. Gerhards , William Burchill , Gus Vos
发明人： Ronald H. Gerhards , William Burchill , Gus Vos
IPC分类号： H04B1/7075 , H04B1/7077 , H04L27/06
CPC分类号： H04B1/7077 , H04B1/70757
摘要： A method of searching for a predefined code in a bit stream, the method comprising initiating a first search for correlation of the bit stream with a reference code applied to the bit stream at a first plurality of different times according to a first resolution to produce a first set of correlation values and associated times. Then a second search is initiated for correlation of the bit stream with the reference code applied to the bit stream at a second plurality of different times to produce a second set of correlation values and associated times, the reference code being offset in time from a maximal correlation value of the first set such that the reference code is applied to the bit stream at times other than times of the first plurality. Then, out of the first and the second sets a maximal correlation value is selected for use in calculating a strength of the predefined code in the bit stream.
摘要翻译：一种在比特流中搜索预定义代码的方法，所述方法包括：根据第一分辨率，在第一多个不同时间，启动对所述比特流与应用于所述比特流的参考代码的相关性的第一搜索，以产生第一组相关值和相关时间。然后启动第二次搜索，以便在第二多个不同时间将比特流与应用于比特流的参考码进行相关，以产生第二组相关值和相关联的时间，该参考码在时间上偏离最大所述第一组的相关值使得所述参考码在除了所述第一多个时间之外的时间被应用于所述比特流。然后，在第一和第二组中，选择最大相关值用于计算比特流中预定义代码的强度。

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