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1. 发明授权

US07756483B2 Adaptive channel quality estimation algorithm to support link adaptation 有权
标题翻译：自适应信道质量估计算法支持链路自适应
公开(公告)号：US07756483B2
公开(公告)日：2010-07-13
申请号：US11714982
申请日：2007-03-07
申请人： Li Fung Chang , Yongqian Wang , Xiaoxin Qiu , Nelson R. Sollenberger
发明人： Li Fung Chang , Yongqian Wang , Xiaoxin Qiu , Nelson R. Sollenberger
IPC分类号： H04B17/00
CPC分类号： H04L27/0012 , H04B17/327 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0045 , H04L1/0075 , H04L1/203 , H04L25/03261 , H04L25/03318
摘要： RF communications received by a wireless terminal from a servicing base station are used to determine the channel quality such as reported bit error probability (BEP). The RF communications may be in the form of RF bursts that are part of a data frame. An estimated BEP may be determined from the signal to noise ratio (SNR) of the RF bursts and or a sequence of soft decisions extracted from the RF bursts, and their historical performance. The SNR maps to an estimated BEP based upon the modulation format of the RF bursts. The soft decisions decode to produce a data block. When the soft decisions decoded favorably, the re-encoded data block produces a sequence of re-encoded decisions. Comparing the re-encoded decisions to the soft decisions yields a re-encoded bit error (RBER). The reported BEP may be based upon the estimated BEP, RBER, and/or RBER threshold. The RBER threshold may be adaptively incremented or decremented depending upon whether or not the RF communications were properly decoded. The size of the increment or decrement may be based on the channel quality.
摘要翻译：使用无线终端从服务基站接收的RF通信来确定诸如所报告的比特错误概率（BEP）的信道质量。 RF通信可以是作为数据帧的一部分的RF突发的形式。可以根据RF突发的信噪比（SNR）和从RF突发提取的一系列软判决及其历史性能来确定估计的BEP。 SNR基于RF突发的调制格式映射到估计的BEP。软判决解码以产生数据块。当软判决被有利地解码时，重新编码的数据块产生一系列重新编码的决定。将重新编码的决定与软判决进行比较产生重编码位错误（RBER）。报告的BEP可以基于估计的BEP，RBER和/或RBER阈值。 RBER阈值可以根据RF通信是否被正确解码而自适应地递增或递减。增量或减量的大小可以基于通道质量。

2. 发明授权

US07203461B2 Adaptive channel quality estimation algorithm to support link adaptation 有权
公开(公告)号：US07203461B2
公开(公告)日：2007-04-10
申请号：US10845955
申请日：2004-05-14
申请人： Li Fung Chang , Yongqian Wang , Xiaoxin Qiu , Nelson R. Sollenberger
发明人： Li Fung Chang , Yongqian Wang , Xiaoxin Qiu , Nelson R. Sollenberger
IPC分类号： H04B17/00
CPC分类号： H04L1/0021 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0059 , H04L1/0072 , H04L1/0075 , H04L1/203 , H04L1/206 , H04L25/067
摘要： RF communications received by a wireless terminal from a servicing base station are used to determine the channel quality such as reported bit error probability (BEP). The RF communications may be in the form of RF bursts that are part of a data frame. An estimated BEP may be determined from the signal to noise ratio (SNR) of the RF bursts and or a sequence of soft decisions extracted from the RF bursts, and their historical performance. The SNR maps to an estimated BEP based upon the modulation format of the RF bursts. The soft decisions decode to produce a data block. When the soft decisions decoded favorably, the re-encoded data block produces a sequence of re-encoded decisions. Comparing the re-encoded decisions to the soft decisions yields a re-encoded bit error (RBER). The reported BEP may be based upon the estimated BEP, RBER, and/or RBER threshold. The RBER threshold may be adaptively incremented or decremented depending upon whether or not the RF communications were properly decoded. The size of the increment or decrement may be based on the channel quality.

3. 发明授权

US07945258B2 Wireless device operable to manipulate high-speed shared control channel (HSSCCH) quality control through channel quality indication report manipulation 有权
标题翻译：无线设备可操作以通过信道质量指示报告操纵来操纵高速共享控制信道（HSSCCH）质量控制
公开(公告)号：US07945258B2
公开(公告)日：2011-05-17
申请号：US11935163
申请日：2007-11-05
申请人： Nelson R. Sollenberger , Li Fung Chang , Xiaoxin Qiu , Hongwei Kong , Severine Catreux
发明人： Nelson R. Sollenberger , Li Fung Chang , Xiaoxin Qiu , Hongwei Kong , Severine Catreux
IPC分类号： H04W24/00
CPC分类号： H04L1/20 , H04B17/21 , H04B17/336 , H04L1/0026 , H04L1/0061 , H04W52/241 , H04W52/322
摘要： A method to adapt channel quality indicator (CQI) reports from user equipment (UE) is provided. This involves first determining the presence of a high-speed shared control channel (HS-SCCH) signal. An estimated signal to noise ratio (SNR) is also determined. Next an SNR correction based on the presence or lack thereof of the HS-SCCH signal and the CRC checks for HS-SCCH and HS-DSCH signals are determined and applied to the estimated SNR. The CQI report is then generated based on the corrected estimated SNR. This CQI report which takes into account a corrected estimated SNR may then be used to adjust the HS-SCCH signal in an HSDPA telephony system.
摘要翻译：提供了一种从用户设备（UE）适配信道质量指示符（CQI）报告的方法。这涉及首先确定高速共享控制信道（HS-SCCH）信号的存在。估计信噪比（SNR）也被确定。接下来，基于HS-SCCH信号的存在或不存在以及针对HS-SCCH和HS-DSCH信号的CRC校验的SNR校正被确定并应用于估计的SNR。然后基于校正的估计SNR生成CQI报告。考虑到校正的估计SNR的该CQI报告然后可用于调整HSDPA电话系统中的HS-SCCH信号。

4. 发明申请

US20090036117A1 WIRELESS DEVICE OPERABLE TO MANIPULATE HIGH-SPEED SHARED CONTROL CHANNEL (HSSCCH) QUALITY CONTROL THROUGH CHANNEL QUALITY INDICATION REPORT MANIPULATION 有权
标题翻译：无线设备可用于通过频道质量指示报告操作来处理高速共享控制信道（HSSCCH）质量控制
公开(公告)号：US20090036117A1
公开(公告)日：2009-02-05
申请号：US11935163
申请日：2007-11-05
申请人： Nelson R. Sollenberger , Li Fung Chang , Xiaoxin Qiu , Hongwei Kong , Severine Catreux
发明人： Nelson R. Sollenberger , Li Fung Chang , Xiaoxin Qiu , Hongwei Kong , Severine Catreux
IPC分类号： H04Q7/20 , H05K11/00
CPC分类号： H04L1/20 , H04B17/21 , H04B17/336 , H04L1/0026 , H04L1/0061 , H04W52/241 , H04W52/322
摘要： A method to adapt channel quality indicator (CQI) reports from user equipment (UE) is provided. This involves first determining the presence of a high-speed shared control channel (HS-SCCH) signal. An estimated signal to noise ratio (SNR) is also determined. Next an SNR correction based on the presence or lack thereof of the HS-SCCH signal and the CRC checks for HS-SCCH and HS-DSCH signals are determined and applied to the estimated SNR. The CQI report is then generated based on the corrected estimated SNR. This CQI report which takes into account a corrected estimated SNR may then be used to adjust the HS-SCCH signal in an HSDPA telephony system.
摘要翻译：提供了一种从用户设备（UE）适配信道质量指示符（CQI）报告的方法。这涉及首先确定高速共享控制信道（HS-SCCH）信号的存在。估计信噪比（SNR）也被确定。接下来，基于HS-SCCH信号的存在或不存在以及针对HS-SCCH和HS-DSCH信号的CRC校验的SNR校正被确定并应用于估计的SNR。然后基于校正的估计SNR生成CQI报告。考虑到校正的估计SNR的该CQI报告然后可用于调整HSDPA电话系统中的HS-SCCH信号。

5. 发明授权

US06532225B1 Medium access control layer for packetized wireless systems 有权
标题翻译：用于分组化无线系统的媒体接入控制层
公开(公告)号：US06532225B1
公开(公告)日：2003-03-11
申请号：US09361572
申请日：1999-07-27
申请人： Li Fung Chang , Kapil K. Chawla , Justin C. Chuang , Xiaoxin Qiu , Nelson R. Sollenberger
发明人： Li Fung Chang , Kapil K. Chawla , Justin C. Chuang , Xiaoxin Qiu , Nelson R. Sollenberger
IPC分类号： H04Q728
CPC分类号： H04W76/10 , H04W8/26 , H04W24/10 , H04W48/08 , H04W52/0216 , H04W72/00 , H04W74/00 , H04W74/04 , H04W74/06 , Y02D70/1224
摘要： An arrangement where, in addition to the control channels that are used to set up sessions, there is a logically and physically separate and independent set of control channels that can be used as session control channels. Illustratively, the physical GSM frame arrangement that employs 8 logical slots is used, with one slot both in the uplink and downlink dedicated to these separate control channels. In the downlink, such a control channel provides channel grant information, requests to make and transmit power measurements, poll mobile units, etc. In the uplink, such a control channel can be used to request access to a traffic channel, to report on power measurements, to request special hand-off handling, to respond to polling, etc. Because the uplink session control channel does not need to carry a significant amount of information, the GSM slot can be divided into minislots, with each minislot constituting a session control channel for a group of mobile units.
摘要翻译：除了用于建立会话的控制信道之外，还有一个逻辑上和物理上分开且独立的控制信道集合，可用作会话控制信道。示例性地，使用采用8个逻辑时隙的物理GSM帧布置，其中专用于这些单独控制信道的上行链路和下行链路中的一个时隙。在下行链路中，这样的控制信道提供信道授权信息，发送功率测量的请求，轮询移动单元等。在上行链路中，可以使用这样的控制信道来请求访问业务信道，报告功率测量，请求特殊切换处理，以响应轮询等。由于上行会话控制信道不需要携带大量的信息，所以GSM时隙可以分为小时隙，每个小时隙构成会话控制一组移动单元的通道。

6. 发明授权

US07366254B2 Edge incremental redundancy support in a cellular wireless terminal 失效
标题翻译：蜂窝无线终端中的边缘增量冗余支持
公开(公告)号：US07366254B2
公开(公告)日：2008-04-29
申请号：US11636032
申请日：2006-12-08
申请人： Li Fung Chang , Nelson R. Sollenberger , Yongqian Wang , Aki Shohara , Yue Chen
发明人： Li Fung Chang , Nelson R. Sollenberger , Yongqian Wang , Aki Shohara , Yue Chen
IPC分类号： H03K9/00
CPC分类号： H04L1/0059 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0065 , H04L1/0068 , H04L1/0069 , H04L1/0071 , H04L1/1816 , H04L1/1819 , H04L1/1829 , H04L1/1835 , H04L1/1845 , H04L1/203 , H04L1/208 , H04L25/03006 , H04L25/03318 , H04L25/067 , H04L27/0008 , H04L2025/03401 , H04L2025/03407 , H04L2025/03726 , H04L2027/0038
摘要： A system for implementing Incremental Redundancy (IR) operations in a wireless receiver includes a baseband processor, an equalizer, a system processor, and an IR processing module. The baseband processor receives an analog signal corresponding to a data block and samples the analog signal to produce samples. The equalizer receives the samples from the baseband processor, equalizes the samples, and produces soft decision bits corresponding to the data block. The equalizer may be implemented as a distinct processing component or may be performed by the baseband processor or system processor. The system processor receives at least the soft decision bits and initiates IR operations. The IR processing module receives the soft decision bits of the data block and performs IR operations on the data block in an attempt to correctly decode a corresponding data block.
摘要翻译：用于在无线接收机中实现增量冗余（IR）操作的系统包括基带处理器，均衡器，系统处理器和IR处理模块。基带处理器接收对应于数据块的模拟信号，并对模拟信号进行采样以产生采样。均衡器从基带处理器接收样本，对采样进行均衡，并产生与数据块相对应的软判决位。均衡器可以被实现为不同的处理组件，或者可以由基带处理器或系统处理器执行。系统处理器至少接收软判决位，并启动IR操作。 IR处理模块接收数据块的软判决位，并对数据块执行IR操作，以试图正确解码对应的数据块。

7. 发明申请

US20080267100A1 Data block cluster processing in a wireless device 审中-公开
标题翻译：无线设备中的数据块集群处理
公开(公告)号：US20080267100A1
公开(公告)日：2008-10-30
申请号：US11796167
申请日：2007-04-27
申请人： Nelson R. Sollenberger , Srirang Ashok Lovlekar , Hui Luo , Hendrik Frederick Bruyns , Khoi Ly , Xiaoxin Qiu
发明人： Nelson R. Sollenberger , Srirang Ashok Lovlekar , Hui Luo , Hendrik Frederick Bruyns , Khoi Ly , Xiaoxin Qiu
IPC分类号： H04B7/00 , H04B1/38 , H04B1/66
CPC分类号： H04B1/707 , H04L69/18 , H04W88/02
摘要： A wireless device includes a case, user interface, an antenna, first processing resources, and second processing resources. The first processing resources couple to the antenna and to the second processing resources and receive and operate upon a data signal transmitted by a transmitting wireless device. In its processing operations, the first processing resources produces decoded data blocks and writes the decoded data blocks to a data buffer. When a processing resource threshold is met with regard to the plurality of decoded data blocks, the first processing resources issue a service processing interrupt to the second processing resources. In response to the service processing interrupt, the second processing resources retrieve the plurality of decoded data blocks from the data buffer in response to the service processing interrupt and process the plurality of decoded data blocks.
摘要翻译：无线装置包括壳体，用户接口，天线，第一处理资源和第二处理资源。第一处理资源耦合到天线和第二处理资源，并且接收和操作由发送无线设备发送的数据信号。在其处理操作中，第一处理资源产生解码数据块，并将解码的数据块写入数据缓冲器。当满足多个解码数据块的处理资源阈值时，第一处理资源向第二处理资源发出业务处理中断。响应于服务处理中断，第二处理资源响应于服务处理中断从数据缓冲器检索多个解码的数据块，并处理多个解码的数据块。

8. 发明授权

US07894508B2 WCDMA terminal baseband processing module having cell searcher module 失效
标题翻译： WCDMA终端基带处理模块具有小区搜索器模块
公开(公告)号：US07894508B2
公开(公告)日：2011-02-22
申请号：US11221145
申请日：2005-09-06
申请人： Mark David Hahm , Li Fung Chang , Nelson R. Sollenberger
发明人： Mark David Hahm , Li Fung Chang , Nelson R. Sollenberger
IPC分类号： H04B1/00
CPC分类号： H04B1/70735 , H04B1/7083 , H04B2201/70707
摘要： A baseband processing module includes TX processing components, a processor, memory, an RX interface, and a cell searcher module. The TX processing components receive outbound data, process the outbound data to produce a baseband TX signal, and output the baseband TX signal to a RF front end of the RF transceiver. The RX interface receives a baseband RX signal from the RF front end carrying a WCDMA signal. The cell searcher module receives the baseband RX signal, scans for WCDMA energy within the baseband RX signal, acquires slot synchronization to the WCDMA signal based upon correlation with a Primary Synchronization Channel (PSCH) of the WCDMA signal, acquires frame synchronization to, and identify a code group of, the WCDMA signal based upon correlation with a Secondary Synchronization Channel (SSCH) of the WCDMA signal, and identifies the scrambling code of the WCDMA signal based upon correlation with a Common Pilot Channel (CPICH) of the WCDMA signal.
摘要翻译：基带处理模块包括TX处理组件，处理器，存储器，RX接口和小区搜索器模块。 TX处理组件接收出站数据，处理出站数据以产生基带TX信号，并将基带TX信号输出到RF收发器的RF前端。 RX接口从承载WCDMA信号的RF前端接收基带RX信号。小区搜索器模块接收基带RX信号，扫描基带RX信号内的WCDMA能量，基于与WCDMA信号的主同步信道（PSCH）的相关性，获取WCDMA信号的时隙同步，获取帧同步和识别基于与WCDMA信号的次同步信道（SSCH）的相关性的WCDMA信号的码组，并且基于与WCDMA信号的公共导频信道（CPICH）的相关性来识别WCDMA信号的扰码。

9. 发明授权

US07907662B2 Frequency domain equalizer for dual antenna radio 有权
标题翻译：双天线收音机的频域均衡器
公开(公告)号：US07907662B2
公开(公告)日：2011-03-15
申请号：US12703311
申请日：2010-02-10
申请人： Junqiang Li , Mark David Hahm , Nelson R. Sollenberger , Li Fung Chang
发明人： Junqiang Li , Mark David Hahm , Nelson R. Sollenberger , Li Fung Chang
IPC分类号： H03H7/30
CPC分类号： H04L25/03038 , H04L25/0204 , H04L25/0212 , H04L25/022 , H04L2025/03426 , H04L2025/03605
摘要： A Radio Frequency (RF) receiver includes a RF front end and a baseband processing module coupled to the RF front end that is operable to receive a time domain signal that includes time domain training symbols and time domain data symbols. The baseband processing module includes a channel estimator operable to process the time domain training symbols to produce a time domain channel estimate, a Fast Fourier Transformer operable to convert the time domain channel estimate to the frequency domain to produce a frequency domain channel estimate, a weight calculator operable to produce frequency domain equalizer coefficients based upon the frequency domain channel estimate, an Inverse Fast Fourier Transformer operable to converting the frequency domain equalizer coefficients to the time domain to produce time domain equalizer coefficients, and an equalizer operable to equalize the time domain data symbols using the time domain equalizer coefficients.
摘要翻译：射频（RF）接收机包括RF前端和耦合到RF前端的基带处理模块，其可操作以接收包括时域训练符号和时域数据符号的时域信号。基带处理模块包括信道估计器，其可操作以处理时域训练符号以产生时域信道估计;快速傅立叶变换器，其可操作以将时域信道估计转换为频域以产生频域信道估计，权重计算器，其可操作以基于频域信道估计产生频域均衡器系数;反傅里叶变换器，其可操作以将频域均衡器系数转换到时域以产生时域均衡器系数;以及均衡器，其可操作以均衡时域数据符号使用时域均衡器系数。

10. 发明授权

US07697596B2 Cluster path processor time alignment for signal suppression/separation in a wireless device 有权
标题翻译：用于无线设备中信号抑制/分离的群集路径处理器时间对齐
公开(公告)号：US07697596B2
公开(公告)日：2010-04-13
申请号：US11731317
申请日：2007-03-29
申请人： Junqiang Li , Nelson R. Sollenberger , Li Fung Chang , Mark David Hahm , Hongwei Kong
发明人： Junqiang Li , Nelson R. Sollenberger , Li Fung Chang , Mark David Hahm , Hongwei Kong
IPC分类号： H04B1/00
CPC分类号： H04L7/0054 , H04B1/7085 , H04B1/7117 , H04L7/007 , H04L7/033
摘要： A system for processing radio frequency (RF) signals includes a searcher and a plurality of Cluster Path Processor (CPPs). The searcher detects a maximum signal energy level and position of at least one of a plurality of individual distinct path signals in a signal cluster of a first information signal, wherein at least a portion of the plurality of individual distinct path signals is received within a duration of a corresponding delay spread. The sampling position is used as a starting sampling location by the plurality of CPPs, including a first information signal CPP and a second information signal CPP. Fine sampling positions of the plurality of CPPs are based upon channel energy estimates for the plurality of individual distinct path signals. CPP outputs are employed to produce channel estimates, which are themselves used in subsequent equalization operations. Sampling positions may change over time in order to satisfy alignment criteria.
摘要翻译：用于处理射频（RF）信号的系统包括搜索器和多个群集路径处理器（CPP）。搜索器在第一信息信号的信号簇中检测最大信号能级和多个独立不同路径信号中的至少一个的位置，其中多个独立不同路径信号的至少一部分在持续时间内被接收的相应的延迟传播。采样位置由多个CPP用作起始采样位置，包括第一信息信号CPP和第二信息信号CPP。多个CPP的精细采样位置是基于多个独立不同路径信号的信道能量估计。 CPP输出用于产生信道估计，它们本身用于随后的均衡操作。采样位置可能随时间而变化，以满足对准标准。

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