公开(公告)号：US20130148576A1

公开(公告)日：2013-06-13

申请号：US13494683

申请日：2012-06-12

Applicant: Yuheng HUANG ,  Bongyong SONG ,  Edwin C. PARK ,  Samir Salib SOLIMAN ,  Soumya DAS ,  Olufunmilola O. AWONIYI

Inventor： Yuheng HUANG ,  Bongyong SONG ,  Edwin C. PARK ,  Samir Salib SOLIMAN ,  Soumya DAS ,  Olufunmilola O. AWONIYI

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04W16/14 ,  H04W28/20 ,  H04W28/22 ,  H04W72/00 ,  H04W72/04

Abstract: Methods, systems, and devices are disclosed for providing services, such as voice services, within flexible bandwidth systems. In general, the scaling of one or more aspects of a flexible bandwidth system may be compensated for through altering one or more aspects within a code domain. The tools and techniques may include scaling spreading factors (with rate matching tuning in some embodiments), multi-code transmission, code rate increases, AMR codec rate adjustments, and/or higher order modulation. Subframe decoding approaches for the reception scheme may also be utilized. These tools and techniques can be flexibly implemented on the mobile device and/or base station side. Some embodiments may also minimize the latency introduced by the transmission and/or reception process. Flexible bandwidths systems may utilize portions of spectrum that may be too big or too small to fit a normal bandwidth waveform.

Abstract translation: 公开了用于在灵活带宽系统内提供诸如语音服务之类的服务的方法，系统和设备。 通常，可以通过改变代码域内的一个或多个方面来补偿柔性带宽系统的一个或多个方面的缩放。 工具和技术可以包括缩放扩展因子（在一些实施例中具有速率匹配调整），多码传输，码率增加，AMR编解码器速率调整和/或更高阶调制。 也可以利用接收方案的子帧解​​码方法。 这些工具和技术可以在移动设备和/或基站侧灵活地实现。 一些实施例还可以使由传输和/或接收过程引入的等待时间最小化。 灵活的带宽系统可以利用可能太大或太小以适应正常带宽波形的频谱部分。

公开(公告)号：US20130148520A1

公开(公告)日：2013-06-13

申请号：US13491510

申请日：2012-06-07

Applicant: Soumya DAS ,  Ozgur DURAL ,  Edwin C. Park ,  Bongyong SONG ,  Samir Salib SOLIMAN ,  Yuheng HUANG

Inventor： Soumya DAS ,  Ozgur DURAL ,  Edwin C. Park ,  Bongyong SONG ,  Samir Salib SOLIMAN ,  Yuheng HUANG

IPC: H04J13/00

CPC classification number: H04J13/0077 ,  G10L19/16 ,  H04W52/12 ,  H04W52/20 ,  H04W72/00

Abstract: Methods, systems, and devices for supporting voice communications in a wireless communications system are provided. Some embodiments utilize multiple code channels to transmit the voice frames. These embodiments include parallel multi-code embodiments, offset multi-code embodiments, and multi-user multi-code embodiments. Some embodiments utilize flexible carrier bandwidths systems that may utilize portions of spectrum that may not be big enough to fit a normal bandwidth waveform. Some embodiments transmit and receive a subset of subframes of voice frames received over flexible bandwidth code channels. In some embodiments, a subset of subframes based on a flexible bandwidth scaling factor of one or more flexible bandwidth code channels is transmitted. The receiver may decode the voice frame based on the received subset of subframes. An outer loop power control set-point may be adjusted to provide a predetermined frame error rate based on the number of transmitted subframes.

Abstract translation: 提供了用于在无线通信系统中支持语音通信的方法，系统和设备。 一些实施例利用多个代码信道来发送语音帧。 这些实施例包括并行多代码实施例，偏移多代码实施例和多用户多代码实施例。 一些实施例使用灵活的载波带宽系统，其可以利用可能不够大以适应正常带宽波形的频谱部分。 一些实施例发送和接收在灵活的带宽码信道上接收的语音帧的子帧子集。 在一些实施例中，发送基于一个或多个柔性带宽码信道的灵活带宽缩放因子的子帧子集。 接收机可以基于所接收的子帧子集对语音帧进行解码。 可以调整外部环路功率控制设定点，以基于发送的子帧的数量来提供预定的帧错误率。

公开(公告)号：US08355666B2

公开(公告)日：2013-01-15

申请号：US12208280

申请日：2008-09-10

Applicant: Amol Rajkotia ,  Yuheng Huang ,  Ozgur Dural

Inventor： Amol Rajkotia ,  Yuheng Huang ,  Ozgur Dural

IPC: H04W4/00 ,  H04B7/216 ,  H04B1/38 ,  H04B1/00 ,  H04K3/00

CPC classification number: H04K3/224 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/006

Abstract: In embodiments, an adaptive tone erasure technique is applied to orthogonal frequency division multiplexing (OFDM) communications, such as ECMA-368 standard ultra-wideband (UWB) communications. A transmitter obtains jammed sub-carrier information and calculates an erasure mask. The jammed sub-carriers are nulled before transmitting to a receiver. In accordance with the erasure mask, bits falling on the jammed sub-carriers are replaced by erasure bits before interleaving, keeping the interleaver block size constant notwithstanding variations in the number of the jammed sub-carriers. The receiver also obtains the jammed sub-carrier information and the erasure mask. After the receiver deinterleaves the constant size blocks, it decodes the data without the erasure bits. The transmitter may detect the jammed sub-carriers itself, or obtain the information from the receiver. The receiver similarly may detect the jammed sub-carriers itself, or obtain the information from the transmitter.

Abstract translation: 在实施例中，自适应音调删除技术被应用于诸如ECMA-368标准超宽带（UWB）通信的正交频分复用（OFDM）通信。 发射机获得卡塞的子载波信息并计算擦除掩码。 被干扰的子载波在发送到接收机之前被置零。 根据擦除掩码，在被插入的子载波之前的比特被替换为交错之前的擦除比特，保持交织器块大小恒定，尽管拥塞的副载波的数量有变化。 接收机还获得被卡住的副载波信息和擦除掩码。 在接收机对该恒定大小的块进行解交织之后，它对没有擦除位的数据进行解码。 发射机本身可以检测被干扰的子载波，或从接收机获得信息。 接收机类似地可以检测被干扰的子载波本身，或从发射机获得信息。

公开(公告)号：US07974329B2

公开(公告)日：2011-07-05

申请号：US11924606

申请日：2007-10-26

Applicant: Yuheng Huang ,  Ozgur Dural ,  Samir S. Soliman ,  Amol Rajkotia

Inventor： Yuheng Huang ,  Ozgur Dural ,  Samir S. Soliman ,  Amol Rajkotia

IPC: H04B1/00

CPC classification number: H04L27/2656 ,  H04L5/0016 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2665 ,  H04L27/2675

Abstract: A method for performing symbol timing estimation is disclosed herein. In one approach, the method includes defining a search space in a plurality of estimated magnitudes of channel taps; defining a search window in the search space; and locating a symbol timing estimate index in the search space corresponding to a maximum value of an energy of the plurality of estimated magnitudes of channel taps within the search window. A computer program product having code and a wireless communications apparatus for performing the method are also described herein.

Abstract translation: 本文公开了一种用于执行符号定时估计的方法。 在一种方法中，该方法包括在多个估计的信道抽头的幅度中定义搜索空间; 在搜索空间中定义搜索窗口; 以及将搜索空间中的符号定时估计索引定位在与搜索窗口内的多个估计的信道抽头的大小的能量的最大值相对应的搜索空间中。 本文还描述了一种具有代码的计算机程序产品和用于执行该方法的无线通信装置。

公开(公告)号：US08306165B2

公开(公告)日：2012-11-06

申请号：US12768305

申请日：2010-04-27

Applicant: Yuheng Huang ,  Brian C. Banister

Inventor： Yuheng Huang ,  Brian C. Banister

IPC: H03D1/04

CPC classification number: H04L27/2647 ,  H04B7/0434

Abstract: A method for estimating a traffic-to-pilot ratio (TPR) for a received signal is disclosed. The received signal is despatialized to obtain a despatialized received signal. A channel matrix is despatialized to obtain a despatialized channel matrix. The despatialized received signal is whitened to obtain a pre-whitened despatialized received signal. The despatialized channel matrix is whitened to obtain a pre-whitened despatialized channel matrix. The estimated TPR for the received signal is determined using the pre-whitened despatialized received signal and one or more pre-whitened despatialized channel estimation coefficients.

Abstract translation: 公开了一种用于估计接收信号的业务导频比（TPR）的方法。 接收到的信号被去偏移以获得接收信号。 信道矩阵被去空间化以获得despatialized信道矩阵。 接收到的接收信号被白化，以获得预白化的despatialized接收信号。 将despatialized信道矩阵变白以获得预漂白的despatialized信道矩阵。 接收信号的估计TPR是使用预白化偏移接收信号和一个或多个预白化偏移信道估计系数来确定的。

公开(公告)号：US08107561B2

公开(公告)日：2012-01-31

申请号：US11924609

申请日：2007-10-26

Applicant: Yuheng Huang ,  Ozgur Dural ,  Samir S. Soliman ,  Amol Rajkotia

Inventor： Yuheng Huang ,  Ozgur Dural ,  Samir S. Soliman ,  Amol Rajkotia

IPC: H04L27/00

CPC classification number: H04L27/2656 ,  H04L5/0016 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2665 ,  H04L27/2675

Abstract: A method for performing carrier frequency offset estimation and frame synchronization is disclosed herein. In one approach, the method includes performing a first level frequency discrimination on at least one estimated channel tap to generate a frequency discriminated value; estimating a phase error from the frequency discriminated value; and, determining a predetermined frame synchronization pattern from the estimated phase error. A computer program product having code and a wireless communications apparatus for performing the method are also described herein.

Abstract translation: 本文公开了一种用于执行载波频率偏移估计和帧同步的方法。 在一种方法中，该方法包括对至少一个估计信道抽头执行第一电平频率鉴别以产生频率鉴别值; 从所述频率鉴别值估计相位误差; 以及从估计的相位误差确定预定的帧同步模式。 本文还描述了一种具有代码的计算机程序产品和用于执行该方法的无线通信装置。

公开(公告)号：US20100278290A1

公开(公告)日：2010-11-04

申请号：US12768305

申请日：2010-04-27

Applicant: Yuheng Huang ,  Brian C. Banister

Inventor： Yuheng Huang ,  Brian C. Banister

IPC: H04B1/10

CPC classification number: H04L27/2647 ,  H04B7/0434

Abstract: A method for estimating a traffic-to-pilot ratio (TPR) for a received signal is disclosed. The received signal is despatialized to obtain a despatialized received signal. A channel matrix is despatialized to obtain a despatialized channel matrix. The despatialized received signal is whitened to obtain a pre-whitened despatialized received signal. The despatialized channel matrix is whitened to obtain a pre-whitened despatialized channel matrix. The estimated TPR for the received signal is determined using the pre-whitened despatialized received signal and one or more pre-whitened despatialized channel estimation coefficients.

Abstract translation: 公开了一种用于估计接收信号的业务导频比（TPR）的方法。 接收到的信号被去偏移以获得接收信号。 信道矩阵被去空间化以获得despatialized信道矩阵。 接收到的接收信号被白化，以获得预白化的despatialized接收信号。 将despatialized信道矩阵变白以获得预漂白的despatialized信道矩阵。 接收信号的估计TPR是使用预白化去偏移接收信号和一个或多个预白化偏移信道估计系数来确定的。

公开(公告)号：US20100062705A1

公开(公告)日：2010-03-11

申请号：US12208280

申请日：2008-09-10

Applicant: Amol Rajkotia ,  Yuheng Huang ,  Ozgur Dural

Inventor： Amol Rajkotia ,  Yuheng Huang ,  Ozgur Dural

IPC: H04K3/00 ,  H04M1/00

CPC classification number: H04K3/224 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/006

Abstract: In embodiments, an adaptive tone erasure technique is applied to orthogonal frequency division multiplexing (OFDM) communications, such as ECMA-368 standard ultra-wideband (UWB) communications. A transmitter obtains jammed sub-carrier information and calculates an erasure mask. The jammed sub-carriers are nulled before transmitting to a receiver. In accordance with the erasure mask, bits falling on the jammed sub-carriers are replaced by erasure bits before interleaving, keeping the interleaver block size constant notwithstanding variations in the number of the jammed sub-carriers. The receiver also obtains the jammed sub-carrier information and the erasure mask. After the receiver deinterleaves the constant size blocks, it decodes the data without the erasure bits. The transmitter may detect the jammed sub-carriers itself, or obtain the information from the receiver. The receiver similarly may detect the jammed sub-carriers itself, or obtain the information from the transmitter.

Abstract translation: 在实施例中，自适应音调删除技术被应用于诸如ECMA-368标准超宽带（UWB）通信的正交频分复用（OFDM）通信。 发射机获得卡塞的子载波信息并计算擦除掩码。 被干扰的子载波在发送到接收机之前被置零。 根据擦除掩码，在被插入的子载波之前的比特被替换为交错之前的擦除比特，保持交织器块大小恒定，尽管拥塞的副载波的数量有变化。 接收机还获得被卡住的副载波信息和擦除掩码。 在接收机对该恒定大小的块进行解交织之后，它对没有擦除位的数据进行解码。 发射机本身可以检测被干扰的子载波，或从接收机获得信息。 接收机类似地可以检测被干扰的子载波本身，或从发射机获得信息。

公开(公告)号：US08477887B2

公开(公告)日：2013-07-02

申请号：US12971839

申请日：2010-12-17

Applicant: Raghu Narayan Challa ,  Brian Clarke Banister ,  Levent Aydin ,  Yuheng Huang

Inventor： Raghu Narayan Challa ,  Brian Clarke Banister ,  Levent Aydin ,  Yuheng Huang

IPC: H04L27/08

CPC classification number: H03G3/3078

Abstract: A method for Automatic Gain Control (AGC) in a receiver is performed by a circuit having an inner loop and an outer loop. The method includes performing an outer loop energy detection, mitigating interference using the outer loop energy detection, and performing a frequency domain energy measurement in the inner loop. The method also includes adjusting a digital gain component in the inner loop and an analog gain component in the outer loop in response to the frequency domain energy measurement.

Abstract translation: 接收机中的自动增益控制（AGC）的方法由具有内环和外环的电路执行。 该方法包括执行外环能量检测，使用外环能量检测来减轻干扰，以及在内循环中执行频域能量测量。 该方法还包括响应于频域能量测量调整内环中的数字增益分量和外环中的模拟增益分量。

公开(公告)号：US20080220723A1

公开(公告)日：2008-09-11

申请号：US11860505

申请日：2007-09-24

Applicant: Raghuraman Krishnamoorthi ,  Tao Tian ,  Fuyun Ling ,  Yuheng Huang

Inventor： Raghuraman Krishnamoorthi ,  Tao Tian ,  Fuyun Ling ,  Yuheng Huang

IPC: H04B7/00

CPC classification number: H04L27/2675 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/261 ,  H04L27/2655

Abstract: An acquisition module includes a coherent correlator configured to receive a transmission having a pilot signal and correlate the received transmission with a local copy of the pilot signal to produce a first output, a delayed correlator configured to delay the first output and correlate the first output with the delayed first output to produce a second output, and a detector configured to detect the pilot signal in the transmission based on the second output.

Abstract translation: 获取模块包括相干相关器，其被配置为接收具有导频信号的传输并将接收到的传输与导频信号的本地副本相关联以产生第一输出，延迟相关器被配置为延迟第一输出并将第一输出与 延迟的第一输出以产生第二输出;以及检测器，被配置为基于所述第二输出来检测所述传输中的导频信号。