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1. 发明授权

US07308258B2 Unsuitable cell exclusion in wireless communication systems 有权
标题翻译：无线通信系统中不合适的小区排除
公开(公告)号：US07308258B2
公开(公告)日：2007-12-11
申请号：US10764087
申请日：2004-01-23
申请人： Alpaslan Demir , Donald M. Grieco , John W. Haim , Andrew F. Bednarz
发明人： Alpaslan Demir , Donald M. Grieco , John W. Haim , Andrew F. Bednarz
IPC分类号： H04Q7/20
CPC分类号： H04W48/10 , H04W48/02 , H04W48/16 , H04W56/00
摘要： A method and system for performing initial cell search in wireless communication system wherein unsuitable cells are excluded is disclosed. Stored frequencies are searched exhaustively and initial frequencies are search non-exhaustively. Initial frequencies may be searched exhaustively in certain circumstances. When performing exhaustive initial cell searches, primary synchronization codes that lead to unsuitable cells are excluded from subsequent initial cell searches performed on the same frequency.
摘要翻译：公开了一种在无线通信系统中执行初始小区搜索的方法和系统，其中排除不适合的小区。存储的频率被彻底地搜索，初始频率被非穷尽地搜索。在某些情况下，可能会彻底地搜索初始频率。当执行穷尽的初始小区搜索时，导致不适合小区的主同步码被排除在对相同频率执行的后续初始小区搜索中。

2. 发明申请

US20090054094A1 METHOD FOR IDENTIFYING A CODE GROUP REPRESENTATIVE OF A NUMBER OF BASE STATIONS 有权
标题翻译：识别基站数目代码组代表的方法
公开(公告)号：US20090054094A1
公开(公告)日：2009-02-26
申请号：US12258877
申请日：2008-10-27
申请人： Alpaslan Demir , Donald M. Grieco , John W. Haim , Andrew F. Bednarz , Philip J. Pietraski , Louis J. Guccione , Prabhakar R. Chitrapu
发明人： Alpaslan Demir , Donald M. Grieco , John W. Haim , Andrew F. Bednarz , Philip J. Pietraski , Louis J. Guccione , Prabhakar R. Chitrapu
IPC分类号： H04B15/00
CPC分类号： H04B1/7083 , H04B1/70735 , H04B1/70755 , H04B1/709 , H04B2201/70701 , H04W48/16 , H04W56/00
摘要： A method and apparatus for identifying a code group representative of a predetermined number of base stations is disclosed. A chip offset within a frame is input into a first correlator. A plurality of samples of chips at which a primary synchronization code (PSC) has been detected are input into the first correlator. Output of the first correlator is multiplied by the complex conjugate of the PSC to obtain a magnitude for the signals being transmitted at the chips inputted into the first correlator. The magnitude is summed over four frames. The summed signals view of a predetermined set of decision variables is evaluated. A case number, a code group, a timeslot location, and a system frame number are determined based on the evaluation and noise estimation.
摘要翻译：公开了一种用于识别表示预定数量的基站的代码组的方法和装置。帧内的码片偏移被输入到第一相关器中。已经检测到主同步码（PSC）的多个码片样本被输入到第一相关器中。将第一相关器的输出乘以PSC的复共轭，以获得在输入到第一相关器的码片处发送的信号的幅度。幅度总和在四帧以上。评估预定的一组决策变量的相加信号视图。基于评估和噪声估计来确定案例编号，代码组，时隙位置和系统帧编号。

3. 发明授权

US07444144B2 Initial cell search in wireless communication systems 有权
标题翻译：无线通信系统中的初始小区搜索
公开(公告)号：US07444144B2
公开(公告)日：2008-10-28
申请号：US10772644
申请日：2004-02-05
申请人： Alpaslan Demir , Donald M. Grieco , John W. Haim , Andrew F. Bednarz , Philip J. Pietraski , Louis J. Guccione , Prabhakar R. Chitrapu
发明人： Alpaslan Demir , Donald M. Grieco , John W. Haim , Andrew F. Bednarz , Philip J. Pietraski , Louis J. Guccione , Prabhakar R. Chitrapu
IPC分类号： H04Q7/20 , H04J3/06 , H04B1/00
CPC分类号： H04B1/7083 , H04B1/70735 , H04B1/70755 , H04B1/709 , H04B2201/70701 , H04W48/16 , H04W56/00
摘要： A method and system for performing initial cell search is disclosed. Step 1 processing is preformed to detect a peak primary synchronization code (PSC) location (i.e. chip offset or chip location). Step 2 processing is performed to obtain the toffset and code group. Step 3 processing is performed to identify the midamble of a base station with which the WTRU performing the initial cell search may synchronize with.
摘要翻译：公开了一种用于执行初始小区搜索的方法和系统。执行步骤1的处理以检测峰值主同步码（PSC）位置（即码片偏移或码片位置）。执行步骤2处理以获得t偏移量和代码组。执行步骤3处理以识别执行初始小区搜索的WTRU可与其同步的基站的中间码。

4. 发明授权

US08086228B2 Method for identifying a code group representative of a number of base stations 有权
标题翻译：用于识别代表多个基站的代码组的方法
公开(公告)号：US08086228B2
公开(公告)日：2011-12-27
申请号：US12258877
申请日：2008-10-27
申请人： Alpaslan Demir , Donald M. Grieco , John W. Haim , Andrew F. Bednarz , Phillip J. Pietraski , Louis J. Guccione , Prabhakar R. Chitrapu
发明人： Alpaslan Demir , Donald M. Grieco , John W. Haim , Andrew F. Bednarz , Phillip J. Pietraski , Louis J. Guccione , Prabhakar R. Chitrapu
IPC分类号： H04W4/00 , H04W24/00
CPC分类号： H04B1/7083 , H04B1/70735 , H04B1/70755 , H04B1/709 , H04B2201/70701 , H04W48/16 , H04W56/00
摘要： A method and apparatus for identifying a code group representative of a predetermined number of base stations is disclosed. A chip offset within a frame is input into a first correlator. A plurality of samples of chips at which a primary synchronization code (PSC) has been detected are input into the first correlator. Output of the first correlator is multiplied by the complex conjugate of the PSC to obtain a magnitude for the signals being transmitted at the chips inputted into the first correlator. The magnitude is summed over four frames. The summed signals view of a predetermined set of decision variables is evaluated. A case number, a code group, a timeslot location, and a system frame number are determined based on the evaluation and noise estimation.
摘要翻译：公开了一种用于识别表示预定数量的基站的代码组的方法和装置。帧内的码片偏移被输入到第一相关器中。已经检测到主同步码（PSC）的多个码片样本被输入到第一相关器中。将第一相关器的输出乘以PSC的复共轭，以获得在输入到第一相关器的码片处发送的信号的幅度。幅度总和在四帧以上。评估预定的一组决策变量的相加信号视图。基于评估和噪声估计来确定案例编号，代码组，时隙位置和系统帧编号。

5. 发明授权

US07689235B2 Unsuitable cell exclusion in wireless communication systems 失效
标题翻译：无线通信系统中不合适的小区排除
公开(公告)号：US07689235B2
公开(公告)日：2010-03-30
申请号：US12001162
申请日：2007-12-10
申请人： Alpaslan Demir , Donald M. Grieco , John W. Haim , Andrew F. Bednarz
发明人： Alpaslan Demir , Donald M. Grieco , John W. Haim , Andrew F. Bednarz
IPC分类号： H04B7/00
CPC分类号： H04W48/10 , H04W48/02 , H04W48/16 , H04W56/00
摘要： A method for performing initial cell search in wireless communication system wherein unsuitable cells includes searching stored frequencies exhaustively and initial frequencies non-exhaustively. Initial frequencies may be searched exhaustively in certain circumstances. When performing exhaustive initial cell searches, primary synchronization codes that lead to unsuitable cells are excluded from subsequent initial cell searches performed on the same frequency.
摘要翻译：一种用于在无线通信系统中执行初始小区搜索的方法，其中不合适的小区包括穷举地搜索存储的频率和非穷尽地初始频率。在某些情况下，可能会彻底地搜索初始频率。当执行穷尽的初始小区搜索时，导致不适合小区的主同步码被排除在对相同频率执行的后续初始小区搜索中。

6. 发明授权

US08503512B2 Method of generating an index value 有权
标题翻译：生成索引值的方法
公开(公告)号：US08503512B2
公开(公告)日：2013-08-06
申请号：US12755583
申请日：2010-04-07
申请人： Alpaslan Demir , Donald M. Grieco
发明人： Alpaslan Demir , Donald M. Grieco
IPC分类号： H04B1/00 , H04L27/06
CPC分类号： H04W56/00 , H04B1/7083 , H04J3/0608 , H04J11/0069 , H04W48/16
摘要： A method of generating an index value associated with a primary synchronization code within a communication signal includes splitting a sampled communication signal into even and odd samples. The even and odd samples are correlated with a primary synchronization code of the communication signal and complex values of the even and odd samples are generated. Signal strength values for the even and odd samples are approximated and the approximate signal strength values within a frame of the communication signal are accumulated. A highest accumulated signal strength value is assigned as an index value.
摘要翻译：生成与通信信号内的主同步码相关联的索引值的方法包括将采样的通信信号分成偶数和奇数样本。偶数和奇数样本与通信信号的主同步码相关，并产生偶数和奇数样本的复数值。对偶数和奇数样本的信号强度值进行近似，并且累积通信信号的帧内的近似信号强度值。分配最高累积信号强度值作为指标值。

7. 发明申请

US20100020751A1 MITIGATION OF INTERFERENCE IN CELL SEARCH BY WIRELESS TRANSMIT AND RECEIVE UNITS 有权
标题翻译：通过无线传输和接收单元缓解小区搜索干扰
公开(公告)号：US20100020751A1
公开(公告)日：2010-01-28
申请号：US12571880
申请日：2009-10-01
申请人： Philip J. Pietraski , Alpaslan Demir , Donald M. Grieco
发明人： Philip J. Pietraski , Alpaslan Demir , Donald M. Grieco
IPC分类号： H04W4/00
CPC分类号： H04B1/70735 , H04B1/70755 , H04B1/7083 , H04B1/709 , H04B1/7103 , H04B2201/70707
摘要： A wireless transmit receive unit (WTRU) provides facilitation of cell search. In one embodiment, received samples are split into a plurality of sample sets for processing. Each of the sets is processed and an accumulated result is divided by an estimated noise value. In another embodiment, a code correlator correlates the received signal with a primary synchronization code and an auxiliary code correlator having a same length as the code correlator correlates the received signal with a code having a low cross correlation with the primary synchronization code. In another embodiment, a division of an accumulated result with a noise estimate is performed using indexes of the most significant bits.
摘要翻译：无线发射接收单元（WTRU）提供小区搜索的便利。在一个实施例中，将接收到的样本分成多个样本集进行处理。处理每个集合，并将累积结果除以估计的噪声值。在另一个实施例中，码相关器将接收的信号与主同步码相关，并且与码相关器具有相同长度的辅助码相关器将接收的信号与与主同步码具有低互相关的代码相关。在另一个实施例中，使用最高有效位的索引来执行累积结果与噪声估计的分割。

8. 发明授权

US06826244B2 Initial cell search algorithm for 3G FDD wireless communication systems 有权
标题翻译： 3G FDD无线通信系统的初始小区搜索算法
公开(公告)号：US06826244B2
公开(公告)日：2004-11-30
申请号：US09918611
申请日：2001-07-31
申请人： Alpaslan Demir , Donald M. Grieco
发明人： Alpaslan Demir , Donald M. Grieco
IPC分类号： H04L704
CPC分类号： H04W56/00 , H04B1/7083 , H04J3/0608 , H04J11/0069 , H04W48/16
摘要： A system and method for establishing initial synchronization for the link between a UE and a base station in a communication network uses window exclusion logic in order to avoid a deadlock condition upon a detection of the wrong public land mobile network (PLMN). The communication signal is processed in a three step decision process. The first decision step determines a chip offset of the strongest path detected over a frame of samples. In response to the first decision, the second step generates a scrambling code group number and slot offset for retrieving the secondary synchronization code. The third decision step retrieves a primary scrambling code in response to the code group number for synchronizing the UE to the base station.
摘要翻译：为了在通信网络中的UE和基站之间的链路建立初始同步的系统和方法使用窗口排除逻辑，以便在检测到错误的公共陆地移动网络（PLMN）时避免死锁状况。通信信号在三步决策过程中进行处理。第一决定步骤确定在一个采样帧上检测到的最强路径的码片偏移。响应于第一决定，第二步骤产生用于检索辅助同步码的扰码组号和时隙偏移量。第三判定步骤响应用于将UE同步到基站的代码组号来检索主扰码。

9. 发明授权

US07609785B2 Mitigation of interference in cell search by wireless transmit and receive units 失效
标题翻译：通过无线发射和接收单元减轻小区搜索中的干扰
公开(公告)号：US07609785B2
公开(公告)日：2009-10-27
申请号：US12190935
申请日：2008-08-13
申请人： Philip J. Pietraski , Alpaslan Demir , Donald M. Grieco
发明人： Philip J. Pietraski , Alpaslan Demir , Donald M. Grieco
IPC分类号： H04L27/14 , H03D1/04
CPC分类号： H04B1/70735 , H04B1/70755 , H04B1/7083 , H04B1/709 , H04B1/7103 , H04B2201/70707
摘要： A wireless transmit receive unit (WTRU) provides facilitation of cell search. In one embodiment, received samples are split into a plurality of sample sets for processing. Each of the sets is processed and an accumulated result is divided by an estimated noise value. In another embodiment, a code correlator correlates the received signal with a primary synchronization code and an auxiliary code correlator having a same length as the code correlator correlates the received signal with a code having a low cross correlation with the primary synchronization code. In another embodiment, a division of an accumulated result with a noise estimate is performed using indexes of the most significant bits.
摘要翻译：无线发射接收单元（WTRU）提供小区搜索的便利。在一个实施例中，将接收到的样本分成多个样本集进行处理。处理每个集合，并将累积结果除以估计的噪声值。在另一个实施例中，码相关器将接收的信号与主同步码相关，并且与码相关器具有相同长度的辅助码相关器将接收的信号与与主同步码具有低互相关的代码相关。在另一个实施例中，使用最高有效位的索引来执行累积结果与噪声估计的分割。

10. 发明申请

US20130315213A1 METHOD OF GENERATING AN INDEX VALUE 审中-公开
公开(公告)号：US20130315213A1
公开(公告)日：2013-11-28
申请号：US13951303
申请日：2013-07-25
申请人： Alpaslan Demir , Donald M. Grieco
发明人： Alpaslan Demir , Donald M. Grieco
IPC分类号： H04W56/00
CPC分类号： H04W56/00 , H04B1/7083 , H04J3/0608 , H04J11/0069 , H04W48/16
摘要： A method of generating an index value associated with a primary synchronization code within a communication signal includes splitting a sampled communication signal into even and odd samples. The even and odd samples are correlated with a primary synchronization code of the communication signal and complex values of the even and odd samples are generated. Signal strength values for the even and odd samples are approximated and the approximate signal strength values within a frame of the communication signal are accumulated. A highest accumulated signal strength value is assigned as an index value.

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