公开(公告)号：US09807651B2

公开(公告)日：2017-10-31

申请号：US13605898

申请日：2012-09-06

申请人： Syed Aon Mujtaba ,  Tarik Tabet ,  Paul V. Flynn ,  Kee-Bong Song

发明人： Syed Aon Mujtaba ,  Tarik Tabet ,  Paul V. Flynn ,  Kee-Bong Song

IPC分类号： H04W4/00 ,  H04W36/00 ,  H04W68/00 ,  G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04B3/46 ,  H04B17/00 ,  H04Q1/20 ,  H04W76/04

CPC分类号： H04W36/0066 ,  H04W36/0088 ,  H04W76/28

摘要： A user equipment (UE) operating in a communication system comprising a base station and one or more UEs. The UE may be configured to operate on or “camp” on two different networks with one radio. In this exemplary system, the radio may be normally connected to the first network (NW1) and may from time to time be “tuned away” from NW1 to a second network (NW2). The UE may inform NW1 that it has tuned away to another network, e.g., using start and end indicators. This information may prevent NW1 from wasting downlink capacity by unnecessarily allocating downlink resources to the UE during the tune-away. Alternatively, or in addition, this information may prevent NW1 from penalizing the UE, e.g., by reducing its future downlink allocations, since the UE does not respond to NW1 commands during the tune-away.

公开(公告)号：US20150085687A1

公开(公告)日：2015-03-26

申请号：US14496950

申请日：2014-09-25

申请人： Tarik TABET ,  Navid DAMJI ,  Syed Aon MUJTABA ,  Johnson SEBENI

发明人： Tarik TABET ,  Navid DAMJI ,  Syed Aon MUJTABA ,  Johnson SEBENI

IPC分类号： H04W24/08 ,  H04L5/00 ,  H04W52/02

CPC分类号： H04W24/08 ,  H04B7/0684 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0082 ,  H04L25/022 ,  H04L25/0228 ,  H04L27/2613 ,  H04L27/2655 ,  H04W52/0229 ,  Y02D70/1262 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/444

摘要： A station configured to perform a method for determining a wireless property such as a channel estimate, a channel estimation track, a time tracking loop, and a frequency tracking loop. The method including determining a set of consecutive subframes in which no transmission is scheduled, placing a processor into a first power mode during at least a portion of the set of consecutive subframes, placing the processor into a second power mode during at least another portion of the set of consecutive subframes, receiving a first reference symbol when the processor is in the second power mode and calculating a wireless property based on the first reference symbol.

摘要翻译： 一种被配置为执行用于确定诸如信道估计，信道估计轨道，时间跟踪环路和频率跟踪环路之类的无线属性的方法的站。 该方法包括确定其中没有传输被调度的一组连续子帧，在该组连续子帧的至少一部分期间将处理器置于第一功率模式，在至少另一部分的至少另一部分中将处理器置于第二功率模式 所述连续子帧集合，当所述处理器处于所述第二功率模式时接收第一参考符号，并且基于所述第一参考符号来计算无线属性。

公开(公告)号：US08611453B2

公开(公告)日：2013-12-17

申请号：US13428784

申请日：2012-03-23

申请人： Syed Aon Mujtaba ,  Xiaowen Wang

发明人： Syed Aon Mujtaba ,  Xiaowen Wang

IPC分类号： H04B7/02

CPC分类号： H04B7/0417 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/068 ,  H04B7/0689 ,  H04L1/0016

摘要： A Channel Quality Indicator table for wireless multiple input multiple output (MIMO) networks is disclosed. In one embodiment, a method of generating a table for channel quality indicator (CQI) for an open loop MIMO transmission includes calculating performance of a link between a transmitter and a user end unit for each MIMO transmission mode over a range of average signal-to-noise ratio, and selecting the MIMO transmission mode that maximizes performance for each subset of the range of average signal-to-noise ratio. The method further includes storing the selected MIMO transmission mode and the corresponding subset of the range of average signal-to-noise ratio in a CQI table, the CQI table being stored in an user end unit and a base transceiver station of the open loop MIMO network.

摘要翻译： 公开了一种用于无线多输入多输出（MIMO）网络的信道质量指标表。 在一个实施例中，生成用于开环MIMO传输的信道质量指示符（CQI）的表的方法包括：在平均信号到平均信号的范围内，针对每个MIMO传输模式来计算发射机和用户端单元之间的链路的性能 并且选择使平均信噪比范围的每个子集的性能最大化的MIMO传输模式。 该方法还包括将所选择的MIMO传输模式和平均信噪比范围的对应子集存储在CQI表中，该CQI表被存储在开环MIMO的用户端单元和基站中 网络。

公开(公告)号：US20130260758A1

公开(公告)日：2013-10-03

申请号：US13631640

申请日：2012-09-28

申请人： Wen Zhao ,  Xiaowen Wang ,  Vinay Majjigi ,  Paul Flynn ,  Kee-Bong Song ,  Tarik Tabet ,  Youngjae Kim ,  Syed Aon Mujtaba ,  Christian Mucke

发明人： Wen Zhao ,  Xiaowen Wang ,  Vinay Majjigi ,  Paul Flynn ,  Kee-Bong Song ,  Tarik Tabet ,  Youngjae Kim ,  Syed Aon Mujtaba ,  Christian Mucke

IPC分类号： H04W36/14

CPC分类号： H04W36/14 ,  H04W56/0045 ,  H04W76/16 ,  H04W76/25 ,  H04W76/27

摘要： Methods and apparatus for synchronizing operational state during hybrid network operation. In one embodiment, the various access technologies that makeup the hybrid network not fully synchronized. Thus, a wireless device operating in a mixed mode must be capable of managing synchronization across multiple access technologies. The wireless device is configured to estimate an expected “tune-away” period when disengaging with a one access technology to address events (for example, link maintenance, calls, data, and the like) or perform monitoring on a second access technology. The estimate is then used by the device to adjust its operational parameters on the technology from which it is tuning away. This ensures smooth switching away from and back to the various network technologies.

摘要翻译： 混合网络运行期间同步运行状态的方法和装置。 在一个实施例中，组合混合网络的各种接入技术未完全同步。 因此，以混合模式操作的无线设备必须能够跨多个接入技术来管理同步。 无线设备被配置为在使用一种接入技术来解决事件（例如，链路维护，呼叫，数据等）或在第二接入技术上执行监控时，估计预期的“调离”时段。 然后，设备使用该估计来调整其调谐技术的操作参数。 这确保了平滑地切换远离各种网络技术。

公开(公告)号：US07895495B2

公开(公告)日：2011-02-22

申请号：US12422696

申请日：2009-04-13

申请人： Jan Boer ,  Wilhelmus Diepstraten ,  Joachim S. Hammerschmidt ,  Syed Aon Mujtaba

发明人： Jan Boer ,  Wilhelmus Diepstraten ,  Joachim S. Hammerschmidt ,  Syed Aon Mujtaba

IPC分类号： G08C25/02 ,  H04L1/18 ,  H03M13/00

CPC分类号： H04L1/1829

摘要： A station for a communications network. In one embodiment, the station includes a decoder, a check processor, and a transmitter. The decoder is adapted to decode a received encoded data unit. The check processor is adapted to determine whether the encoded data unit has been correctly received. The transmitter is adapted to initiate, prior to the check processor completing the determination whether the encoded data unit has been correctly received, the transmission of an acknowledgment message comprising a frame having a plurality of different fields of data. The transmitter is adapted to modify the transmission of the acknowledgment message if the check processor determines that the data unit has not been correctly received.

摘要翻译： 通信网站。 在一个实施例中，站包括解码器，检查处理器和发射器。 解码器适于对接收到的编码数据单元进行解码。 检查处理器适于确定编码数据单元是否已被正确接收。 所述发射机适于在所述检查处理器完成所述编码数据单元是否已被正确接收的确定之前发起包括具有多个不同数据场的帧的确认消息的发送。 如果检查处理器确定数据单元未被正确接收，则发射机适于修改确认消息的传输。

公开(公告)号：US20090202014A1

公开(公告)日：2009-08-13

申请号：US12186368

申请日：2008-08-05

申请人： Syed Aon Mujtaba ,  Xiaowen Wang

发明人： Syed Aon Mujtaba ,  Xiaowen Wang

IPC分类号： H04B7/02

CPC分类号： H04B7/0413 ,  H04B7/0417 ,  H04B7/0669 ,  H04B7/068 ,  H04B7/0888 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0017 ,  H04L1/0054 ,  H04L1/0625

摘要： A method of the multiple input multiple output feedback is disclosed. In accordance with an embodiment of the invention, the multiple input multiple output feedback method includes a receiver receiving a reference signal from a base station and calculating a signal to interference and noise ratio from the received reference signal. The method further includes determining a modulation and coding scheme based on the signal to interference and noise ratio and a receiver type.

摘要翻译： 公开了一种多输入多输出反馈的方法。 根据本发明的实施例，多输入多输出反馈方法包括接收来自基站的参考信号的接收机，并根据接收到的参考信号计算信噪比。 该方法还包括基于信号与干扰和噪声比确定调制和编码方案以及接收机类型。

公开(公告)号：US07366250B2

公开(公告)日：2008-04-29

申请号：US11122147

申请日：2005-05-04

申请人： Syed Aon Mujtaba ,  Xiaowen Wang

发明人： Syed Aon Mujtaba ,  Xiaowen Wang

IPC分类号： H04B7/02

CPC分类号： H04L25/0206 ,  H04B7/0613 ,  H04B7/12 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/2628

摘要： Methods and apparatus are provided for improved efficiency in an extended multiple antenna communication system. A multiplier is employed on the number of points in the FFT that is greater than the multiplier on the frequency (bandwidth) of the legacy 802.11 a/g system. In one exemplary implementation, a 256 point FFT is employed in 40 MHz (with a 4N multiplier on the number of possible tones and a 2N multiplier on the frequency). While the efficiency for the OFDM symbol is improved, additional overhead is required in the preamble training (the length of the preamble is proportional to the number of tones in the FFT). Thus, a number of preamble constructs are provided that couple the improved efficiency with shorter preambles. In addition, an improved tone design provides additional efficiency gains.

摘要翻译： 提供了用于在扩展的多天线通信系统中提高效率的方法和装置。 FFT中的点数大于传统802.11 a / g系统的频率（带宽）乘数的乘数。 在一个示例性实现中，在40MHz中采用256点FFT（对于可能音调的数量具有4N乘法器，并且在频率上具有2N乘法器）。 虽然改进了OFDM符号的效率，但在前同步码训练中需要额外的开销（前导码的长度与FFT中的音调数成正比）。 因此，提供了许多前导码结构，其将改进的效率与较短的前导码相结合。 此外，改进的音调设计提供了额外的效率增益。

公开(公告)号：US20060141974A1

公开(公告)日：2006-06-29

申请号：US11022317

申请日：2004-12-23

申请人： Edward Campbell ,  Syed Aon Mujtaba

发明人： Edward Campbell ,  Syed Aon Mujtaba

IPC分类号： H04B1/26 ,  H04B15/00

CPC分类号： H04B1/30 ,  H04B1/1027 ,  H04B2001/1045

摘要： A low IF mixer and method for down-converting a signal at a desired frequency are disclosed with improved selectivity performance. The energy of sidebands on each side of the desired frequency is evaluated; and a local oscillator frequency is selected based on the evaluation of the energy. Generally, the local oscillator frequency associated with the sideband having a lower energy is selected. The desired frequency may have a frequency of RF and the sidebands have a frequency of the desired frequency plus or minus an offset frequency (RF+IF or RF−IF). The signal at the desired frequency may be multiplied by the selected local oscillator frequency to down-convert the signal.

摘要翻译： 具有改进的选择性性能的低IF混频器和用于以期望频率下变频的方法被公开。 对期望频率的每一侧的边带的能量进行评估; 并且基于能量的评估来选择本地振荡器频率。 通常，选择与具有较低能量的边带相关联的本地振荡器频率。 期望的频率可以具有RF的频率，并且边带具有所需频率的频率加或减偏移频率（RF + IF或RF-IF）。 以所需频率的信号可以乘以所选择的本地振荡器频率以对信号进行下变频。

公开(公告)号：US08855257B2

公开(公告)日：2014-10-07

申请号：US12186368

申请日：2008-08-05

申请人： Syed Aon Mujtaba ,  Xiaowen Wang

发明人： Syed Aon Mujtaba ,  Xiaowen Wang

IPC分类号： H04B7/10 ,  H04L1/06 ,  H04L1/00 ,  H04B7/04 ,  H04B7/06

CPC分类号： H04B7/0413 ,  H04B7/0417 ,  H04B7/0669 ,  H04B7/068 ,  H04B7/0888 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0017 ,  H04L1/0054 ,  H04L1/0625

摘要： A method of the multiple input multiple output feedback is disclosed. In accordance with an embodiment of the invention, the multiple input multiple output feedback method includes a receiver receiving a reference signal from a base station and calculating a signal to interference and noise ratio from the received reference signal. The method further includes determining a modulation and coding scheme based on the signal to interference and noise ratio and a receiver type.

摘要翻译： 公开了一种多输入多输出反馈的方法。 根据本发明的实施例，多输入多输出反馈方法包括接收来自基站的参考信号的接收机，并根据接收到的参考信号计算信噪比。 该方法还包括基于信号与干扰和噪声比确定调制和编码方案以及接收机类型。

公开(公告)号：US20090199076A1

公开(公告)日：2009-08-06

申请号：US12422696

申请日：2009-04-13

申请人： Jan Boer ,  Wilhelmus Diepstraten ,  Joachim S. Hammerschmidt ,  Syed Aon Mujtaba

发明人： Jan Boer ,  Wilhelmus Diepstraten ,  Joachim S. Hammerschmidt ,  Syed Aon Mujtaba

IPC分类号： G06F11/07

CPC分类号： H04L1/1829

摘要： A station for a communications network. In one embodiment, the station includes a decoder, a check processor, and a transmitter. The decoder is adapted to decode a received encoded data unit. The check processor is adapted to determine whether the encoded data unit has been correctly received. The transmitter is adapted to initiate, prior to the check processor completing the determination whether the encoded data unit has been correctly received, the transmission of an acknowledgment message comprising a frame having a plurality of different fields of data. The transmitter is adapted to modify the transmission of the acknowledgment message if the check processor determines that the data unit has not been correctly received.

摘要翻译： 通信网站。 在一个实施例中，站包括解码器，检查处理器和发射器。 解码器适于对接收到的编码数据单元进行解码。 检查处理器适于确定编码数据单元是否已被正确接收。 所述发射机适于在所述检查处理器完成所述编码数据单元是否已被正确接收的确定之前发起包括具有多个不同数据场的帧的确认消息的发送。 如果检查处理器确定数据单元未被正确接收，则发射机适于修改确认消息的传输。