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1. 发明授权

US09554319B2 Channel handoff methods in wireless broadcast systems 有权
标题翻译：无线广播系统中的信道切换方法
公开(公告)号：US09554319B2
公开(公告)日：2017-01-24
申请号：US11828333
申请日：2007-07-25
申请人： Linbo Li , Ashok Mantravadi , Fuyun Ling , Raghuraman Krishnamoorthi
发明人： Linbo Li , Ashok Mantravadi , Fuyun Ling , Raghuraman Krishnamoorthi
IPC分类号： H04Q7/20 , H04W36/28 , H04W36/30 , H04W72/08
CPC分类号： H04W36/28 , H04W36/30 , H04W72/085
摘要： Systems and methodologies are described that facilitate monitoring RF channels in a wireless communication environment to determine whether one or more channels comprise a forward-link-only (FLO) signal. A receiver can receive a first RF channel with a FLO signal and can monitor other RF channels for FLO signals. Upon a determination that a monitored RF channel comprises a FLO signal, the receiver can switch between the first RF channel and the monitored RF channel, employing information on current MLC decoding status, to facilitate providing seamless reception of the FLO signal, which can be superframe synchronized between RF channels. FLO signal detection can be performed using one or more of a wide-area identification channel energy detection protocol and a wide-area overhead information symbol decoding error detection protocol.
摘要翻译：描述了便于在无线通信环境中监视RF信道以确定一个或多个信道是包括仅前向链路（FLO）信号的系统和方法。接收机可以接收具有FLO信号的第一RF信道，并且可以监视FLO信号的其他RF信道。在确定被监视的RF信道包括FLO信号之后，接收机可以使用关于当前MLC解码状态的信息在第一RF信道和被监控的RF信道之间切换，以便于提供FLO信号的无缝接收，其可以是超帧在RF信道之间同步。可以使用广域识别信道能量检测协议和广域开销信息符号解码错误检测协议中的一个或多个来执行FLO信号检测。

2. 发明申请

US20150326382A1 INITIALIZATION OF TIMING RECOVERY AND DECISION-FEEDBACK EQUALIZATION IN A RECEIVER 审中-公开
标题翻译：定时恢复的初始化和接收方的决策反馈均衡
公开(公告)号：US20150326382A1
公开(公告)日：2015-11-12
申请号：US14763798
申请日：2013-01-28
申请人： Jian LI , Yisheng XUE , Michael M. FAN , Jilei HOU , Yin Huang , Fuyun Ling , QUALCOMM INCORPORATED
发明人： Jian Li , Yin Huang , Yisheng Xue , Michael M. Fan , Fuyun Ling , Jilei Hou
IPC分类号： H04L7/00 , H04L25/03
CPC分类号： H04L7/0004 , H04L25/03 , H04L25/0305 , H04L25/0307 , H04L2025/03656
摘要： A method of initializing a receiver is performed during an initialization mode. Timing offset values for a timing recovery circuit are repeatedly selected. For each selected timing offset value, timing recovery is performed using the timing offset value and groups of weights for a decision feedback equalizer are repeatedly selected. Each selected group of weights is used to perform blind decision feedback equalization. For each selected group of weights, a metric indicating data reception quality is computed. A timing offset value and a group of weights are chosen based on the computed metrics.
摘要翻译：在初始化模式期间执行初始化接收机的方法。定时恢复电路的定时偏移值被重复选择。对于每个选择的定时偏移值，使用定时偏移值执行定时恢复，并且重复地选择用于判决反馈均衡器的权重组。每个选择的权重组用于执行盲判决反馈均衡。对于每个选择的权重组，计算指示数据接收质量的度量。基于所计算的度量来选择定时偏移值和权重组。

3. 发明授权

US08744018B2 Early termination schemes for turbo decoding in a wireless communication system 失效
标题翻译：用于无线通信系统中turbo解码的提前终止方案
公开(公告)号：US08744018B2
公开(公告)日：2014-06-03
申请号：US13440287
申请日：2012-04-05
申请人： Jinghu Chen , Wanlun Zhao , Mingxi Fan , Fuyun Ling , Peter John Black
发明人： Jinghu Chen , Wanlun Zhao , Mingxi Fan , Fuyun Ling , Peter John Black
IPC分类号： H04L27/06
CPC分类号： H03M13/2975 , H04L1/0051
摘要： Certain embodiments provide methods that may allow for improvements in performance and power consumption by terminating the turbo decoding process early when one of at least two test criterion is satisfied in communications systems, including UMTS, WCDMA, and TD-DCMA.
摘要翻译：某些实施例提供了通过在包括UMTS，WCDMA和TD-DCMA的通信系统中满足至少两个测试标准中的一个的情况下提前终止turbo解码过程来允许改进性能和功耗的方法。

4. 发明授权

US08640012B2 Communication signal decoding with iterative cooperation between inner and outer codes 有权
标题翻译：通信信号解码与内部和外部代码之间的迭代协作
公开(公告)号：US08640012B2
公开(公告)日：2014-01-28
申请号：US12430719
申请日：2009-04-27
申请人： Fuyun Ling , Thomas Sun , Tao Tian , Raghuraman Krishnamoorthi , Jing Jiang
发明人： Fuyun Ling , Thomas Sun , Tao Tian , Raghuraman Krishnamoorthi , Jing Jiang
IPC分类号： G06F11/00
CPC分类号： H03M13/112 , H03M13/1111 , H03M13/1117 , H03M13/1191 , H03M13/1515 , H03M13/152 , H03M13/19 , H03M13/23 , H03M13/2966 , H03M13/658 , H04L1/005 , H04L1/0064
摘要： Received communication signals may be decoded according to a combined, iterative inner code—outer code decoding technique. The inner code decoding is based on information produced by the outer code decoding.
摘要翻译：接收到的通信信号可以根据组合的迭代内码外码解码技术进行解码。内码解码是基于由外码解码产生的信息。

5. 发明授权

US08635645B2 Apparatus and methods of providing and receiving venue level transmissions and services 有权
标题翻译：提供和接收场地级传输和服务的装置和方法
公开(公告)号：US08635645B2
公开(公告)日：2014-01-21
申请号：US12569792
申请日：2009-09-29
申请人： Raghuraman Krishnamoorthi , Pankaj V. Rahate , Pankaj Jain , Devarshi P. Shah , Pavel A. Seliverstov , George A. Rothrock , Nilabh Khare , Anil K. Wadhwani , Jiming Guo , Sanjiv Nanda , Fuyun Ling , Murali R. Chari , Avneesh Agrawal , Rinat Burdo , Prasanna Kannan , Krishna K. Mukkavilli , Reynaldo W. Newman , Michael M. Fan , Manoj M. Deshpande , Ranjith S. Jayaram
发明人： Raghuraman Krishnamoorthi , Pankaj V. Rahate , Pankaj Jain , Devarshi P. Shah , Pavel A. Seliverstov , George A. Rothrock , Nilabh Khare , Anil K. Wadhwani , Jiming Guo , Sanjiv Nanda , Fuyun Ling , Murali R. Chari , Avneesh Agrawal , Rinat Burdo , Prasanna Kannan , Krishna K. Mukkavilli , Reynaldo W. Newman , Michael M. Fan , Manoj M. Deshpande , Ranjith S. Jayaram
IPC分类号： H04N5/445
CPC分类号： H04N21/2385 , H04L12/189 , H04L67/16 , H04L67/18 , H04N21/482 , H04W4/02 , H04W4/04 , H04W48/16 , H04W72/005
摘要： A venue-cast system and method for providing and receiving venue level transmissions and services, including discovery of a venue specific transmission by receiving an overhead signal from a non-venue network, extracting information for receiving the venue specific transmission from the overhead signal, and tuning to receive the venue specific transmission based on the extracted information. The venue level transmission may be provided and received in a manner that does not prevent an access terminal from receiving a local area or wide area transmission.
摘要翻译：一种用于提供和接收场地级传输和服务的场地播放系统和方法，包括通过从非场地网络接收开销信号来发现场地特定传输，从开销信号中提取用于接收场地特定传输的信息，以及基于所提取的信息进行调谐以接收特定于场地的传输。可以以不阻止接入终端接收局域或广域传输的方式提供和接收场地级传输。

6. 发明申请

US20130156124A1 SYSTEM AND METHOD FOR FREQUENCY DIVERSITY 有权
标题翻译：频域多样性的系统与方法
公开(公告)号：US20130156124A1
公开(公告)日：2013-06-20
申请号：US13767834
申请日：2013-02-14
申请人： Michael Mao Wang , Murali Ramaswamy Chari , Ashok Mantravadi , Fuyun Ling , Rajiv Vijayan , Raghuraman Krishnamoorthi
发明人： Michael Mao Wang , Murali Ramaswamy Chari , Ashok Mantravadi , Fuyun Ling , Rajiv Vijayan , Raghuraman Krishnamoorthi
IPC分类号： H04L27/26
CPC分类号： H04L27/2601 , H03M13/258 , H03M13/271 , H03M13/2957 , H03M13/31 , H04L1/0071 , H04L1/04 , H04L5/0007 , H04L5/0042 , H04L5/0044 , H04L5/0064 , H04L5/0083 , H04L27/2626 , H04L27/2634
摘要： A system and method for frequency diversity uses interleaving in a wireless communication system utilizing orthogonal frequency division multiplexing (OFDM) with various FFT sizes. Subcarriers of one or more interlaces are interleaved in a bit reversal fashion and the one or more interlaces are interleaved in the bit reversal fashion.
摘要翻译：用于频率分集的系统和方法使用利用具有各种FFT大小的正交频分复用（OFDM）的无线通信系统中的交织。一个或多个交错的子载波以位反向方式进行交织，并且该一个或多个交织以比特反转方式进行交织。

7. 发明授权

US08441913B2 Switching diversity in broadcast OFDM systems based on multiple receive antennas 有权
标题翻译：基于多个接收天线的广播OFDM系统中的交换分集
公开(公告)号：US08441913B2
公开(公告)日：2013-05-14
申请号：US11521701
申请日：2006-09-15
申请人： Linbo Li , Ashok Mantravadi , Fuyun Ling
发明人： Linbo Li , Ashok Mantravadi , Fuyun Ling
IPC分类号： H04J11/00
CPC分类号： H04B7/0404 , H04B7/0805 , H04B7/0808 , H04B7/0811 , H04B7/0814 , H04B7/0857 , H04B7/0874 , H04L1/0003 , H04L1/0057 , H04L1/0066 , H04L25/022 , H04L27/2647 , H04W72/085
摘要： Systems and methods are provided for enhancing signal quality at receivers in a wireless network. In one embodiment, an antenna is selected from a subset of antennas based on a signal quality parameter such as received signal power or signal-to-noise ratio (SNR). In another embodiment, multiple antennas are applied to independent signal processing paths for the respective antennas where output from the paths is then combined to enhance overall signal quality at the receiver.
摘要翻译：提供了用于在无线网络中的接收机处提高信号质量的系统和方法。在一个实施例中，基于诸如接收信号功率或信噪比（SNR）的信号质量参数从天线子集中选择天线。在另一个实施例中，多个天线被施加到各个天线的独立信号处理路径，其中来自路径的输出然后被组合以增强接收机处的整体信号质量。

8. 发明授权

US08422614B2 Methods and apparatus for determining timing in a wireless communication system 失效
公开(公告)号：US08422614B2
公开(公告)日：2013-04-16
申请号：US12579131
申请日：2009-10-14
申请人： Michael M. Wang , Bojan Vrcelj , Fuyun Ling
发明人： Michael M. Wang , Bojan Vrcelj , Fuyun Ling
IPC分类号： H04L7/00
CPC分类号： H04L27/2662 , H04L27/2676
摘要： Methods and apparatus for setting timing of sampling of one or more symbols. The disclosed methods account for at least three types of effective interference (EI) and are used to set the timing of a sampling window for sampling received symbols. The methods includes setting timing based on determining an energy density function accounting for both static and dynamic EI, determining the minimum of a total energy profile and sliding the sampling window to ensure that the minimum point is at a predetermined point, and determining and using a composite energy profile accounting for short term and long term fading effects. The disclosed apparatus include a transceiver employing one or more of the disclosed methods for setting timing when receiving the symbols.

9. 发明授权

US08144824B2 Trend influenced time tracking 有权
标题翻译：趋势影响时间跟踪
公开(公告)号：US08144824B2
公开(公告)日：2012-03-27
申请号：US11371535
申请日：2006-03-08
申请人： Bojan Vrcelj , Ashok Mantravadi , Fuyun Ling , Rajiv Vijayan , Michael Mao Wang
发明人： Bojan Vrcelj , Ashok Mantravadi , Fuyun Ling , Rajiv Vijayan , Michael Mao Wang
IPC分类号： H04B1/10
CPC分类号： H04L27/2662 , H04L5/0007 , H04L5/0048 , H04L25/0216 , H04L25/022 , H04L25/0228 , H04L27/261 , H04L27/265 , H04L27/2665 , H04L27/2679
摘要： A method for determining a communication channel location is disclosed. A first subset of a plurality of channel impulse responses is averaged over a first time period to produce a first filtered channel impulse response, and a second subset of the plurality of channel impulse responses is averaged over a second time period to produce a second filtered channel impulse response. The second time period is different from the first time period, and the second subset is different from the first subset. The communication channel location is determined using the first filtered channel impulse response and the second filtered channel impulse response.
摘要翻译：公开了一种用于确定通信信道位置的方法。多个信道脉冲响应的第一子集在第一时间段内被平均以产生第一经滤波的信道脉冲响应，并且在第二时间周期上平均多个信道脉冲响应的第二子集，以产生第二滤波信道脉冲响应。第二时间段与第一时间段不同，第二子集与第一子集不同。使用第一滤波信道脉冲响应和第二滤波信道脉冲响应来确定通信信道位置。

10. 发明申请

US20100316044A1 TIMING SYNCHRONIZATION AND CHANNEL ESTIMATION AT A TRANSITION BETWEEN LOCAL AND WIDE AREA WAVEFORMS USING A DESIGNATED TDM PILOT 有权
标题翻译：使用指定的TDM引导程序进行本地和宽带波形之间的转换的时序同步和信道估计
公开(公告)号：US20100316044A1
公开(公告)日：2010-12-16
申请号：US12862740
申请日：2010-08-24
申请人： Bojan VRCELJ , Ashok Mantravadi , Fuyun Ling , Krishna Kiran Mukkavilli , Raghuraman Krishnamoorthi , Michael Mao Wang
发明人： Bojan VRCELJ , Ashok Mantravadi , Fuyun Ling , Krishna Kiran Mukkavilli , Raghuraman Krishnamoorthi , Michael Mao Wang
IPC分类号： H04W56/00 , H04W40/00
CPC分类号： H04L27/2613 , H04L5/0023 , H04L5/0048 , H04L25/0204 , H04L25/0216 , H04L25/0226 , H04L25/03866 , H04L27/2662 , H04L27/2675
摘要： Systems and methods are provided for channel estimation and timing synchronization in a wireless network. In an embodiment, a method is provided for time synchronization at a wireless receiver. The method includes decoding at least one TDM pilot symbol located at a transition between wide and local waveforms and processing the TDM pilot symbol to perform time synchronization for a wireless receiver. Methods for channel estimation at a wireless receiver are also provided. This includes decoding at least one TDM pilot symbol and receiving the TDM pilot symbol from an OFDM broadcast to facilitate channel estimation for a wireless receiver.
摘要翻译：提供了系统和方法用于无线网络中的信道估计和定时同步。在一个实施例中，提供了一种用于在无线接收机处进行时间同步的方法。该方法包括解码位于宽和局部波形之间的转变处的至少一个TDM导频符号，并处理TDM导频符号以对无线接收机执行时间同步。还提供了在无线接收机处进行信道估计的方法。这包括解码至少一个TDM导频符号并从OFDM广播接收TDM导频符号以便于无线接收机的信道估计。

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