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1. 发明授权

US08134996B2 Downlink synchronization for a cellular OFDM communication system 有权
标题翻译：用于蜂窝OFDM通信系统的下行链路同步
公开(公告)号：US08134996B2
公开(公告)日：2012-03-13
申请号：US11459313
申请日：2006-07-21
申请人： Eko N. Onggosanusi , Anand G. Dabak , Timothy M. Schmidl , Alan Gatherer
发明人： Eko N. Onggosanusi , Anand G. Dabak , Timothy M. Schmidl , Alan Gatherer
IPC分类号： H04J3/06
CPC分类号： H04L27/2613 , H04J11/0069 , H04L5/0007 , H04L27/2657 , H04L27/2662
摘要： The present invention provides a method of operating a base station transmitter. In one embodiment, the method includes providing a cellular downlink synchronization signal having primary and secondary portions, wherein the primary portion is common for all cells and the secondary portion is cell-specific and transmitting the cellular downlink synchronization signal. In another embodiment, the method includes providing a cellular downlink synchronization signal having primary and secondary portions wherein the primary portion employs a corresponding one of a plurality of different primary signals allocated to adjoining transmission cells. The method also includes further providing cell-specific information in the secondary portion and transmitting the cellular downlink synchronization signal. The present invention also provides a method of operating user equipment. The method includes receiving a cellular downlink synchronization signal having primary and secondary portions wherein the secondary portion provides cell-specific parameters and identifying and extracting the secondary portion.
摘要翻译：本发明提供一种操作基站发射机的方法。在一个实施例中，该方法包括提供具有主要和次要部分的蜂窝下行链路同步信号，其中主要部分对于所有小区是公共的，并且次要部分是小区特定的，并且发送蜂窝下行链路同步信号。在另一个实施例中，该方法包括提供具有主要和次要部分的蜂窝下行链路同步信号，其中主要部分采用分配给相邻传输小区的多个不同主信号中的相应一个信号。该方法还包括在次级部分中进一步提供小区特定信息并发送蜂窝下行同步信号。本发明还提供了一种操作用户设备的方法。该方法包括接收具有主要和次要部分的蜂窝下行链路同步信号，其中辅助部分提供小区特定参数并且识别和提取次要部分。

2. 发明申请

US20080019350A1 DOWNLINK SYNCHRONIZATION FOR A CELLULAR OFDM COMMUNICATION SYSTEM 有权
标题翻译：用于蜂窝OFDM通信系统的下行同步
公开(公告)号：US20080019350A1
公开(公告)日：2008-01-24
申请号：US11459313
申请日：2006-07-21
申请人： Eko N. Onggosanusi , Anand G. Dabak , Timothy M. Schmidl , Alan Gatherer
发明人： Eko N. Onggosanusi , Anand G. Dabak , Timothy M. Schmidl , Alan Gatherer
IPC分类号： H04J3/06
CPC分类号： H04L27/2613 , H04J11/0069 , H04L5/0007 , H04L27/2657 , H04L27/2662
摘要： The present invention provides a method of operating a base station transmitter. In one embodiment, the method includes providing a cellular downlink synchronization signal having primary and secondary portions, wherein the primary portion is common for all cells and the secondary portion is cell-specific and transmitting the cellular downlink synchronization signal. In another embodiment, the method includes providing a cellular downlink synchronization signal having primary and secondary portions wherein the primary portion employs a corresponding one of a plurality of different primary signals allocated to adjoining transmission cells. The method also includes further providing cell-specific information in the secondary portion and transmitting the cellular downlink synchronization signal. The present invention also provides a method of operating user equipment. The method includes receiving a cellular downlink synchronization signal having primary and secondary portions wherein the secondary portion provides cell-specific parameters and identifying and extracting the secondary portion.
摘要翻译：本发明提供一种操作基站发射机的方法。在一个实施例中，该方法包括提供具有主要和次要部分的蜂窝下行链路同步信号，其中主要部分对于所有小区是公共的，并且次要部分是小区特定的，并且发送蜂窝下行链路同步信号。在另一个实施例中，该方法包括提供具有主要和次要部分的蜂窝下行链路同步信号，其中主要部分采用分配给相邻传输小区的多个不同主信号中的相应一个信号。该方法还包括在次级部分中进一步提供小区特定信息并发送蜂窝下行同步信号。本发明还提供了一种操作用户设备的方法。该方法包括接收具有主要和次要部分的蜂窝下行链路同步信号，其中辅助部分提供小区特定参数并且识别和提取次要部分。

3. 发明授权

US07154958B2 Code division multiple access wireless system with time reversed space time block transmitter diversity 有权
标题翻译：码分多址无线系统具有时间反转空间时间块发射机多样性
公开(公告)号：US07154958B2
公开(公告)日：2006-12-26
申请号：US09885878
申请日：2001-06-20
申请人： Anand G. Dabak , Eko N. Onggosanusi , Timothy M Schmidl , Alan Gatherer
发明人： Anand G. Dabak , Eko N. Onggosanusi , Timothy M Schmidl , Alan Gatherer
IPC分类号： H04B7/06
CPC分类号： H04L1/0631 , H04B1/7115 , H04B7/0613 , H04J13/00 , H04J13/0048 , H04L1/0065 , H04L1/0071 , H04L1/0618
摘要： A wireless communication network (10) includes a wireless transmitter having a plurality of antennas (AT11, AT12). The transmitter includes for each of a plurality of different user channels (Dn), circuitry (22n) for providing a plurality of groups of symbols in a first symbol group sequence (D1n). Each of the plurality of different user channels includes circuitry (241n) for forming a first modulated symbol group sequence for the user channel by modulating the symbols in the first symbol group sequence with a unique code that corresponds to the user channel and distinguishes the user channel from each other of the plurality of different user channels and circuitry (261) for combining the first modulated symbol group sequences for transmission by a first antenna (AT11). Each of the plurality of different user channels includes circuitry (22n) for forming a second symbol group sequence (D2n) by time reversing symbols in at least some of the groups of symbols.
摘要翻译：无线通信网络（10）包括具有多个天线（AT 1> 1，AT 1 2 N 2）的无线发射机。发射机包括用于多个不同用户信道（D S）中的每一个，用于在第一符号组序列中提供多个符号组的电路（22）（D n> n）。多个不同用户信道中的每一个包括用于通过调制第一符号组中的符号来形成用于用户信道的第一调制符号组序列的电路（24＆lt; n0＆gt; n）序列，其具有对应于用户信道的唯一代码，并且将用户信道与多个不同用户信道中的用户信道和电路（26 1）进行区分，用于组合用于传输的第一调制符号组序列第一天线（AT 1 1 1）。多个不同的用户信道中的每一个包括用于通过时间反转来形成第二符号组序列（D 2> ^{n ）的电路（22 ）符号中的至少一些符号组。}

4. 发明授权

US06829290B1 Wireless communications system with combining of multiple paths selected from correlation to the primary synchronization channel 有权
标题翻译：无线通信系统，具有从与主同步信道相关选择的多个路径的组合
公开(公告)号：US06829290B1
公开(公告)日：2004-12-07
申请号：US09669394
申请日：2000-09-26
申请人： Timothy M. Schmidl , Alan Gatherer , Srinath Hosur , Anand G. Dabak
发明人： Timothy M. Schmidl , Alan Gatherer , Srinath Hosur , Anand G. Dabak
IPC分类号： H04B169
CPC分类号： H04B1/7115 , H04B1/709 , H04B1/7117 , H04B2201/70707
摘要： A wireless receiver (UST). The receiver comprises at least one antenna (ATU) for receiving a plurality of frames (FR) in a form of a plurality of paths. Each of the plurality of frames comprises a plurality of time slots (SLN), and each of the plurality of time slots comprises a plurality of symbols. Further, each of the plurality of paths has a corresponding sample position, wherein the plurality of symbols comprise a primary synchronization code symbol (PSC). The receiver further comprises circuitry (52) for correlating a primary synchronization code across a group of the plurality of symbols, and circuitry for identifying a plurality of path positions within the group. Each of the plurality of path positions corresponds to a respective one of a plurality of largest-amplitude paths represented within the group as detected in response to the circuitry for correlating. Finally, the receiver comprises circuitry for combining (54, 58) the plurality of largest-amplitude paths in response to identification of those paths by the circuitry for identifying.
摘要翻译：无线接收器（UST）。接收机包括用于接收多个路径形式的多个帧（FR）的至少一个天线（ATU）。多个帧中的每一个包括多个时隙（SLN），并且多个时隙中的每一个包括多个符号。此外，多个路径中的每一个具有对应的采样位置，其中多个符号包括主同步码符号（PSC）。接收机还包括用于将多个符号组中的主同步码相互关联的电路（52）以及用于识别组内的多个路径位置的电路。多个路径位置中的每一个对应于响应于用于相关的电路检测到的在组内表示的多个最大幅度路径中的相应一个路径位置。最后，接收机包括用于响应于用于识别的电路的那些路径的识别来组合（54,58）多个最大幅度路径的电路。

5. 发明授权

US07164704B1 Beam forming for transmit using bluetooth modified hopping sequences (BFTBMH) 有权
标题翻译：使用蓝牙修改的跳频序列（BFTBMH）进行发送的波束形成
公开(公告)号：US07164704B1
公开(公告)日：2007-01-16
申请号：US09489668
申请日：2000-01-24
申请人： Anand G. Dabak , Mohammed Nafie , Timothy M. Schmidl , Alan Gatherer
发明人： Anand G. Dabak , Mohammed Nafie , Timothy M. Schmidl , Alan Gatherer
IPC分类号： H04B1/713
CPC分类号： H01Q3/22 , H01Q1/2291 , H04B1/713 , H04B7/0615 , H04B7/0697 , H04B7/0848 , H04W84/18
摘要： A communication circuit (28) is designed with a signal processing circuit (370) arranged to produce a first plurality of data signals and receive a second plurality of data signals. A transmit circuit (364) is coupled to receive the first plurality of data signals and transmit each data signal of the first plurality of data signals on a respective transmit frequency in a predetermined sequence of transmit frequencies. A receive circuit (362) is coupled to receive each data signal of the second plurality of data signals from a remote transmitter on the respective transmit frequency in the predetermined sequence. The receive circuit applies the second plurality of data signals to the signal processing circuit.
摘要翻译：通信电路（28）被设计成具有被配置为产生第一多个数据信号并接收第二多个数据信号的信号处理电路（370）。发射电路（364）被耦合以接收第一多个数据信号，并且以预定的发射频率的顺序在相应的发射频率上发射第一多个数据信号的每个数据信号。接收电路（362）被耦合以便以预定顺序在相应发射频率上从远程发射机接收第二多个数据信号的每个数据信号。接收电路将第二多个数据信号施加到信号处理电路。

6. 发明授权

US08107420B2 Wireless communications system with cycling of unique cell bit sequences in station communications 有权
标题翻译：无线通信系统，在站通信中具有独特的小区位序列循环
公开(公告)号：US08107420B2
公开(公告)日：2012-01-31
申请号：US12034534
申请日：2008-02-20
申请人： Timothy M. Schmidl , Alan Gatherer , Anand G. Dabak
发明人： Timothy M. Schmidl , Alan Gatherer , Anand G. Dabak
IPC分类号： H04W4/00
CPC分类号： H04B7/2656
摘要： A wireless communication system (10). The system comprises transmitter circuitry (BST1) comprising circuitry for transmitting a plurality of frames to a receiver in a first cell (Cell 1). Each of the plurality of frames comprises a bit group (22), and the bit group uniquely distinguishes the first cell from a second cell (Cell 2) adjacent the first cell. The transmitter circuitry further comprises circuitry (54) for inserting a bit sequence into the bit group. The bit sequence is selected from a plurality of bit sequences (S1-SK) such that successive transmissions by the transmitter circuitry comprise a cycle of successive ones of the plurality of bit sequences.
摘要翻译：一种无线通信系统（10）。该系统包括发射机电路（BST1），包括用于将第一小区（小区1）中的多个帧发射到接收机的电路。多个帧中的每一个包括位组（22），并且该位组将第一单元与第一单元相邻的第二单元（单元2）唯一区分开。发射机电路还包括用于将比特序列插入到比特组中的电路（54）。从多个比特序列（S1-SK）中选择比特序列，使得发射机电路的连续传输包括多个比特序列中的连续的一个比特序列的周期。

7. 发明授权

US06970495B1 Adjustment of slave frequency hopping pattern to improve channel measurement opportunities in wireless communications 有权
标题翻译：调整从属跳频模式，改善无线通信中的通道测量机会
公开(公告)号：US06970495B1
公开(公告)日：2005-11-29
申请号：US09634053
申请日：2000-08-08
申请人： Timothy M. Schmidl , Anand G. Dabak , Mohammed Nafie , Alan Gatherer
发明人： Timothy M. Schmidl , Anand G. Dabak , Mohammed Nafie , Alan Gatherer
IPC分类号： H04B1/713
CPC分类号： H04B1/713
摘要： The frequency hopping pattern of a first wireless communication device is modified such that each transmission (73) to a second wireless communication device is on a frequency (MSj+1) that the second device's normal frequency hopping pattern specifies for one of the second device's next several transmissions to the first device. This permits the second device to make quality measurements (54) on a frequency that the second device will soon use (51) for transmission to the first device.
摘要翻译：修改第一无线通信设备的跳频模式，使得到第二无线通信设备的每个传输（73）处于第二设备的正常跳频模式的频率（MS＆lt; j + 1＆gt;）指定第二设备的下一个传输到第一设备之一。这允许第二设备对第二设备将很快使用的频率（51）进行质量测量（54）以传输到第一设备。

8. 发明授权

US06831956B1 Wireless communications system with combining of multiple paths selected from sub-windows in response to the primary synchronization channel 有权
标题翻译：无线通信系统，其响应于主同步信道组合从子窗口选择的多个路径
公开(公告)号：US06831956B1
公开(公告)日：2004-12-14
申请号：US09669813
申请日：2000-09-26
申请人： Timothy M. Schmidl , Alan Gatherer , Srinath Hosur , Anand G. Dabak
发明人： Timothy M. Schmidl , Alan Gatherer , Srinath Hosur , Anand G. Dabak
IPC分类号： H04B1707
CPC分类号： H04B1/7113
摘要： A wireless receiver (UST). The receiver comprises at least one antenna (ATU) for receiving a plurality of frames (FR) in a form of a plurality of paths. Each of the plurality of frames comprises a plurality of time slots (SLN), and each of the plurality of time slots comprises a plurality of symbols. Further, each of the plurality of paths has a corresponding sample position, wherein the plurality of symbols comprise a primary synchronization code symbol (PSC). The receiver further comprises circuitry (52) for correlating a primary synchronization code across a group of the plurality of symbols and circuitry (52) for identifying a plurality of path positions within the group. Each of the plurality of path positions corresponds to a respective one of a plurality of largest-amplitude paths represented within the group as detected in response to the circuitry for correlating. The receiver further comprises circuitry (56) for defining a plurality of sub-windows. Each of the plurality of sub-windows comprises a plurality of sample positions, and each of the plurality of sub-windows includes at least one of the plurality of identified path positions. Finally, the receiver further comprises circuitry (54, 58) for combining paths selected from the sample positions within the plurality of sub-windows.
摘要翻译：无线接收器（UST）。接收机包括用于接收多个路径形式的多个帧（FR）的至少一个天线（ATU）。多个帧中的每一个包括多个时隙（SLN），并且多个时隙中的每一个包括多个符号。此外，多个路径中的每一个具有对应的采样位置，其中多个符号包括主同步码符号（PSC）。接收机还包括电路（52），用于在一组多个符号和电路（52）之间相互关联主同步码，用于识别组内的多个路径位置。多个路径位置中的每一个对应于响应于用于相关的电路检测到的在组内表示的多个最大幅度路径中的相应一个路径位置。接收器还包括用于限定多个子窗口的电路（56）。多个子窗口中的每一个包括多个采样位置，并且多个子窗口中的每一个子窗口包括多个识别的路径位置中的至少一个。最后，接收机还包括用于组合从多个子窗口内的样本位置选择的路径的电路（54,58）。

9. 发明授权

US07634019B2 Beam forming for transmit using bluetooth modified hopping sequences (BFTBMH) 有权
标题翻译：使用蓝牙修改的跳频序列（BFTBMH）进行发送的波束形成
公开(公告)号：US07634019B2
公开(公告)日：2009-12-15
申请号：US11466270
申请日：2006-08-22
申请人： Anand G. Dabak , Mohammed Nafie , Timothy M. Schmidl , Alan Gatherer
发明人： Anand G. Dabak , Mohammed Nafie , Timothy M. Schmidl , Alan Gatherer
IPC分类号： H04L1/02 , H04B1/38 , H04B1/00
CPC分类号： H01Q3/22 , H01Q1/2291 , H04B1/713 , H04B7/0615 , H04B7/0697 , H04B7/0848 , H04W84/18
摘要： A communication circuit (28) is designed with a signal processing circuit (370) arranged to produce a first plurality of data signals and receive a second plurality of data signals. A transmit circuit (364) is coupled to receive the first plurality of data signals and transmit each data signal of the first plurality of data signals on a respective transmit frequency in a predetermined sequence of transmit frequencies. A receive circuit (362) is coupled to receive each data signal of the second plurality of data signals from a remote transmitter on the respective transmit frequency in the predetermined sequence. The receive circuit applies the second plurality of data signals to the signal processing circuit.
摘要翻译：通信电路（28）被设计成具有被配置为产生第一多个数据信号并接收第二多个数据信号的信号处理电路（370）。发射电路（364）被耦合以接收第一多个数据信号，并且以预定的发射频率的顺序在相应的发射频率上发射第一多个数据信号的每个数据信号。接收电路（362）被耦合以便以预定顺序在相应发射频率上从远程发射机接收第二多个数据信号的每个数据信号。接收电路将第二多个数据信号施加到信号处理电路。

10. 发明授权

US07372825B1 Wireless communications system with cycling of unique cell bit sequences in station communications 有权
标题翻译：无线通信系统，在站通信中具有独特的小区位序列循环
公开(公告)号：US07372825B1
公开(公告)日：2008-05-13
申请号：US09605610
申请日：2000-06-28
申请人： Timothy M. Schmidl , Alan Gatherer , Anand G. Dabak
发明人： Timothy M. Schmidl , Alan Gatherer , Anand G. Dabak
IPC分类号： H04Q7/00
CPC分类号： H04B7/2656
摘要： A wireless communication system (10). The system comprises transmitter circuitry (BST1) comprising circuitry for transmitting a plurality of frames to a receiver in a first cell (Cell 1). Each of the plurality of frames comprises a bit group (22), and the bit group uniquely distinguishes the first cell from a second cell (Cell 2) adjacent the first cell. The transmitter circuitry further comprises circuitry (54) for inserting a bit sequence into the bit group. The bit sequence is selected from a plurality of bit sequences (S1-SK) such that successive transmissions by the transmitter circuitry comprise a cycle of successive ones of the plurality of bit sequences.
摘要翻译：一种无线通信系统（10）。该系统包括发射机电路（BST 1），包括用于向第一小区（小区1）中的接收机发送多个帧的电路。多个帧中的每一个包括位组（22），并且该位组将第一单元与第一单元相邻的第二单元（单元2）区分开。发射机电路还包括用于将比特序列插入到比特组中的电路（54）。该比特序列是从多个比特序列中选择的，使得发射机电路的连续传输包括多个位序列。

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