公开(公告)号：US20120304034A1

公开(公告)日：2012-11-29

申请号：US13571819

申请日：2012-08-10

申请人： Li Fung Chang ,  Yongqian Wang

发明人： Li Fung Chang ,  Yongqian Wang

IPC分类号： G06F11/08

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 wireless device for implementing Incremental Redundancy (IR) operations includes system processing circuitry operable to perform Physical (PHY) layer operations, Media Access Control (MAC) layer operations and Radio Link Control (RLC) operations of the wireless device. The system processing circuitry further includes an IR control module for processing IR transactions related to a received RLC data block and for tracking an Automatic Repeat Request (ARQ) receiving state and received block bit map and a Layer 1 (L1) module for intercepting and diverting the IR transactions to the IR control module and for passing a correctly decoded RLC data block to the RLC layer operations via the MAC layer operations thereby automatically synchronizing the RLC layer operations. An IR processing module is coupled to the system processing circuitry to perform IR operations on the received RLC data block based upon a direction from the IR control module.

摘要翻译： 用于实现增量冗余（IR）操作的无线设备包括可操作以执行无线设备的物理（PHY）层操作，媒体访问控制（MAC）层操作和无线电链路控制（RLC）操作的系统处理电路。 系统处理电路还包括IR控制模块，用于处理与所接收的RLC数据块有关的IR事务，并用于跟踪自动重复请求（ARQ）接收状态和接收的块位图以及用于拦截和转移的层1（L1）模块 到IR控制模块的IR事务和经由MAC层操作将正确解码的RLC数据块传送到RLC层操作，从而自动同步RLC层操作。 IR处理模块耦合到系统处理电路，以基于来自IR控制模块的方向对所接收的RLC数据块执行IR操作。

公开(公告)号：US08270428B2

公开(公告)日：2012-09-18

申请号：US12503546

申请日：2009-07-15

申请人： Xiaoxin Qui ,  Li Fung Chang ,  Hui Luo ,  Srirang Ashok Lovlekar

发明人： Xiaoxin Qui ,  Li Fung Chang ,  Hui Luo ,  Srirang Ashok Lovlekar

IPC分类号： H04B7/212

CPC分类号： H04L1/0051 ,  H04L1/0054 ,  H04L1/0066 ,  H04L1/1819 ,  H04L1/1845

摘要： A baseband processing module of a wireless terminal includes a Turbo decoding module. The Turbo decoding module decodes a Turbo code word to produce one or more Media Access Control (MAC) packet(s) carried by the turbo decode word. Each MAC packet includes a MAC packet header and the MAC packet payload, which carries one or more Radio Link Control (RLC) Packet Data Units (PDUs). The Turbo decoding module decodes the MAC packet header to determine boundaries of the PDUs carried in the MAC packet payload. The Turbo decoding module decodes RLC PDU headers and RLC PDU payloads of the RLC PDUs. The Turbo decoding module writes the decoded MAC packet header, the decoded RLC PDU headers, and the decoded RLC PDU payloads to memory in a word-aligned format. The Turbo decoding module may also operate in various other Turbo decoding modes.

摘要翻译： 无线终端的基带处理模块包括Turbo解码模块。 Turbo解码模块解码Turbo码字以产生由turbo解码字携带的一个或多个媒体访问控制（MAC）分组。 每个MAC分组包括携带一个或多个无线电链路控制（RLC）分组数据单元（PDU）的MAC分组报头和MAC分组有效载荷。 Turbo解码模块对MAC分组报头进行解码，以确定MAC分组负载中承载的PDU的边界。 Turbo解码模块解码RLC PDU的RLC PDU头部和RLC PDU有效载荷。 Turbo解码模块将解码的MAC分组报头，解码的RLC PDU报头和解码的RLC PDU有效载荷以字对齐格式写入存储器。 Turbo解码模块也可以以各种其他Turbo解码模式工作。

公开(公告)号：US08169344B2

公开(公告)日：2012-05-01

申请号：US13096290

申请日：2011-04-28

申请人： Hongwei Kong ,  Li Fung Chang

发明人： Hongwei Kong ,  Li Fung Chang

IPC分类号： H03M5/02

CPC分类号： H03M3/496

摘要： Methods and systems for audio CODEC voice ADC processing are disclosed. Aspects of one method may include using a decimating filter that may be enabled to generate 13 MHz, 9-level digital output signal from a 26 MHz, 3-level digital input signal. The 13 MHz, 9-level digital output signal may be processed for RF transmission, for audio output to an output device, and/or utilized for testing by a test fixture, for example. The 13 MHz, 9-level digital output signal may be further processed to generate a 6.5 MHz, 33-level digital signal. The 6.5 MHz, 33-level digital signal may be converted to an analog signal, and processed for audio output and/or testing. The 13 MHz, 9-level digital output signal may also be processed to generate a 40 KHz, 17-bit digital signal, which may be communicated to a test equipment or further processed for RF transmission.

摘要翻译： 公开了用于音频CODEC语音ADC处理的方法和系统。 一种方法的方面可以包括使用可被用于从26MHz 3级数字输入信号产生13MHz的9级数字输出信号的抽取滤波器。 13MHz，9电平数字输出信号可以被处理用于RF传输，用于音频输出到输出设备，和/或用于例如测试夹具的测试。 可以进一步处理13MHz，9电平数字输出信号，以产生一个6.5MHz，33电平的数字信号。 6.5 MHz，33级数字信号可以转换为模拟信号，并进行音频输出和/或测试。 13MHz的9电平数字输出信号也可以被处理以产生40KHz的17位数字信号，该数字信号可传送到测试设备或进一步处理用于RF传输。

公开(公告)号：US08145178B2

公开(公告)日：2012-03-27

申请号：US13036322

申请日：2011-02-28

申请人： Mark David Hahm ,  Li Fung Chang

发明人： Mark David Hahm ,  Li Fung Chang

IPC分类号： H04B1/26

CPC分类号： H03M13/658 ,  H03M13/09 ,  H03M13/1102 ,  H03M13/23 ,  H03M13/2975 ,  H03M13/3922 ,  H03M13/6306 ,  H03M13/6362 ,  H04L1/0051 ,  H04L1/0054 ,  H04L1/0066 ,  H04L1/1819 ,  H04L1/1845

摘要： A baseband processing module for use within a Radio Frequency (RF) transceiver includes a downlink/uplink interface, TX processing components, a processor, memory, RX processing components, and a turbo decoding module. The RX processing components receive a baseband RX signal from the RF front end, produce a set of IR samples from the baseband RX signal, and transfer the set of IR samples to the memory. The turbo decoding module receives a set of IR samples from the memory, forms a turbo code word from the set of IR samples, turbo decodes the turbo code word to produce inbound data, and outputs the inbound data to the downlink/uplink interface. The turbo decoding module performs metric normalization based upon a chosen metric, performs de-rate matching on the set of IR samples, performs error detection operations, and extracts information from a MAC packet that it produces.

摘要翻译： 用于射频（RF）收发器的基带处理模块包括下行链路/上行链路接口，TX处理组件，处理器，存储器，RX处理组件和turbo解码模块。 RX处理组件从RF前端接收基带RX信号，从基带RX信号产生一组IR样本，并将该组IR样本传送到存储器。 turbo解码模块从存储器接收一组IR样本，从该IR样本组中形成turbo码字，对turbo码字进行turbo解码以产生入站数据，并将入站数据输出到下行链路/上行链路接口。 turbo解码模块基于所选择的度量来执行度量标准化，对所述IR样本集执行去速率匹配，执行错误检测操作，以及从其产生的MAC分组中提取信息。

公开(公告)号：US20110182444A1

公开(公告)日：2011-07-28

申请号：US13052349

申请日：2011-03-21

申请人： Hongwei Kong ,  Nelson Sollenberger ,  Li Fung Chang ,  Claude Hayek ,  Taiyi Cheng

发明人： Hongwei Kong ,  Nelson Sollenberger ,  Li Fung Chang ,  Claude Hayek ,  Taiyi Cheng

IPC分类号： H04B1/00 ,  G10L21/00

CPC分类号： G10L19/00

摘要： An audio codec in a baseband processor may be utilized for mixing audio signals received at a plurality of data sampling rates. The mixed audio signals may be up sampled to a very large sampling rate, and then down sampled to a specified sampling rate that is compatible with a Bluetooth-enabled device by utilizing an interpolator in the audio codec. The down-sampled signals may be communicated to Bluetooth-enabled devices, such as Bluetooth headsets, or Bluetooth-enabled devices with a USB interface. The interpolator may be a linear interpolator for which the audio codec may enable generation of triggering and/or coefficient signals based on the specified output sampling rate. An interpolation coefficient may be generated based on a base value associated with the specified output sampling rate. The audio codec may enable selecting the specified output sampling rate from a plurality of rates.

摘要翻译： 基带处理器中的音频编解码器可用于混合以多个数据采样率接收的音频信号。 混合音频信号可以被上采样到非常大的采样率，然后通过利用音频编解码器中的内插器而被下采样到与启用蓝牙的设备兼容的指定采样率。 下采样信号可以传送到具有USB接口的支持蓝牙的设备，例如蓝牙耳机或具有蓝牙功能的设备。 内插器可以是线性内插器，其中音频编解码器可以基于指定的输出采样率来实现触发和/或系数信号的产生。 可以基于与指定的输出采样率相关联的基值产生内插系数。 音频编解码器可以允许从多个速率中选择指定的输出采样率。

公开(公告)号：US07933251B1

公开(公告)日：2011-04-26

申请号：US11899722

申请日：2007-09-06

申请人： Li Fung Chang ,  Kapil K. Chawla ,  Justin Che-I Chuang ,  Xiaoxin Qiu

发明人： Li Fung Chang ,  Kapil K. Chawla ,  Justin Che-I Chuang ,  Xiaoxin Qiu

IPC分类号： H04B7/216

CPC分类号： H04W28/22 ,  H04W52/0229 ,  Y02D70/122

摘要： A wireless network includes transmission power and data rate adaptation based upon quality experienced by the user.

摘要翻译： 无线网络包括基于用户所经历的质量的传输功率和数据速率适配。

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。

公开(公告)号：US07877071B2

公开(公告)日：2011-01-25

申请号：US11964066

申请日：2007-12-26

申请人： Hongwei Kong ,  Li Fung Chang ,  Pan Liu

发明人： Hongwei Kong ,  Li Fung Chang ,  Pan Liu

IPC分类号： H04B17/00 ,  H04B1/06

CPC分类号： H04B7/0871 ,  H04L5/0051 ,  H04L25/0226

摘要： Apparatus and method to provide unified STTD/CLTD dedicated pilot processing in a wireless receiver. The technique allows different set of parameters to be introduced to a same processing module to process STTD and CLTD diversity signals to recover a pilot signal. Introducing another set of parameters to the processing module also allows processing of a non-diversity signal to recover a pilot. The unified processing of STTD/CLTD signals is achieved by converting STTD/CLTD pilot bits as Hadamard-like bits and processing these bits along with orthogonal pilot bits which are encoded as Hadamard encoded bits.

摘要翻译： 在无线接收机中提供统一的STTD / CLTD专用导频处理的装置和方法。 该技术允许将不同的参数集合引入相同的处理模块来处理STTD和CLTD分集信号以恢复导频信号。 向处理模块引入另一组参数还允许处理非分集信号以恢复导频。 将STTD / CLTD信号的统一处理通过将STTD / CLTD导频位转换为Hadamard类比特并且将这些比特以及被编码为Hadamard编码比特的正交导频比特一起处理来实现。

公开(公告)号：US07873324B2

公开(公告)日：2011-01-18

申请号：US11962518

申请日：2007-12-21

申请人： Jun Wu ,  Hongwei Kong ,  Li Fung Chang

发明人： Jun Wu ,  Hongwei Kong ,  Li Fung Chang

IPC分类号： H04B17/00

CPC分类号： H04B17/336 ,  H04B17/318 ,  H04L1/1867

摘要： Apparatus and method for processing a received pilot to obtain noise estimation of a pilot channel and processing a received first signal channel, separately from a second signal channel that is orthogonal to the first signal channel, to obtain a signal level of the first signal channel. The noise estimation and the signal level are used to calculate a SNR value. Detection on the first channel is done by checking the SNR and the sign of a soft metric.

摘要翻译： 用于处理接收到的导频以获得导频信道的噪声估计并且与第一信号信道正交的第二信号信道分开处理所接收的第一信号信道以获得第一信号信道的信号电平的装置和方法。 噪声估计和信号电平用于计算SNR值。 第一个信道上的检测是通过检查信噪比和软度量标志来完成的。

公开(公告)号：US07852239B2

公开(公告)日：2010-12-14

申请号：US12250233

申请日：2008-10-13

申请人： Hongwei Kong ,  Huaiyi (Hanks) Zeng ,  Nelson Sollenberger ,  Li Fung Chang ,  Taiya Cheng ,  Claude Hayek

发明人： Hongwei Kong ,  Huaiyi (Hanks) Zeng ,  Nelson Sollenberger ,  Li Fung Chang ,  Taiya Cheng ,  Claude Hayek

IPC分类号： H03M7/00

CPC分类号： H04S1/007 ,  G10L19/18 ,  H04S2400/13

摘要： One or more circuits in a mobile phone may be utilized for up sampling two or more audio signals to a same data sampling rate. Each audio signal, such as digital audio, voice, and polyringer, for example, may be received at one of a plurality of data sampling rates and one or more of the following wireless standards: WCDMA, HSDPA, GSM, GPRS, EDGE, and/or Bluetooth. Audio signals may be equalized and/or compensated with an FIR filter before up sampling or with an IIR filter to reduce overall processing latency. Multiple half-band interpolation operations may perform the up sampling. The first half-band filter may be replaced by an IIR filter to reduce overall processing latency. A gain of the up-sampled data may be adjusted to reduce noise effects. The channels of the up-sampled audio signals may be mixed and later further up sampled for subsequent communication to an output device.

摘要翻译： 移动电话中的一个或多个电路可用于将两个或多个音频信号上采样到相同的数据采样率。 可以以多种数据采样率和以下无线标准中的一种或多种以下无线标准中的一种来接收每个音频信号，例如数字音频，话音和多声道，WCDMA，HSDPA，GSM，GPRS，EDGE和 /或蓝牙。 音频信号可以在上采样之前用FIR滤波器或IIR滤波器进行均衡和/或补偿，以减少整体处理等待时间。 多个半带插值操作可以执行上采样。 第一个半带滤波器可以被IIR滤波器代替，以减少整体处理等待时间。 可以调整上采样数据的增益以减少噪声影响。 上采样音频信号的信道可以混合并且稍后进一步上采样以便随后与输出设备进行通信。