公开(公告)号：US09001679B2

公开(公告)日：2015-04-07

申请号：US13491510

申请日：2012-06-07

申请人： Soumya Das ,  Ozgur Dural ,  Edwin C. Park ,  Bongyong Song ,  Samir Salib Soliman ,  Yuheng Huang

发明人： Soumya Das ,  Ozgur Dural ,  Edwin C. Park ,  Bongyong Song ,  Samir Salib Soliman ,  Yuheng Huang

IPC分类号： H04J13/10 ,  H04W74/00 ,  H04W28/02 ,  H04L12/801 ,  H04J13/00 ,  H04W72/00 ,  G10L19/16 ,  H04W52/12 ,  H04W52/20

CPC分类号： H04J13/0077 ,  G10L19/16 ,  H04W52/12 ,  H04W52/20 ,  H04W72/00

摘要： 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.

摘要翻译： 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：US09848339B2

公开(公告)日：2017-12-19

申请号：US13494683

申请日：2012-06-12

申请人： Yuheng Huang ,  Bongyong Song ,  Edwin C. Park ,  Samir Salib Soliman ,  Soumya Das ,  Olunfunmilola O. Awoniyi

发明人： Yuheng Huang ,  Bongyong Song ,  Edwin C. Park ,  Samir Salib Soliman ,  Soumya Das ,  Olunfunmilola O. Awoniyi

IPC分类号： H04W24/02 ,  H04W28/20 ,  H04W28/22 ,  H04W16/04 ,  H04W72/04 ,  H04W16/14 ,  H04W72/00

CPC分类号： H04W24/02 ,  H04W16/14 ,  H04W28/20 ,  H04W28/22 ,  H04W72/00 ,  H04W72/04

摘要： 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.

公开(公告)号：US09198219B2

公开(公告)日：2015-11-24

申请号：US13605156

申请日：2012-09-06

申请人： Yuheng Huang ,  Bongyong Song ,  Samir Salib Soliman

发明人： Yuheng Huang ,  Bongyong Song ,  Samir Salib Soliman

IPC分类号： H04L1/00 ,  H04W76/06

CPC分类号： H04W76/068 ,  H04W76/38

摘要： Methods, devices, and instructions stored in non-transitory computer-readable medium are provided for adaptively adjusting when a mobile device requests fast dormancy (FD) by determining when applications executing on the mobile device stop using a connection to a cellular telecommunications network. An adaptive fast dormancy controller function executing on a processor of the mobile device monitors network traffic activity by the applications. The adaptive fast dormancy controller function may determine that an open network connection should be released using a device traffic inactivity timer that times durations of network inactivity by applications. The duration of the device traffic inactivity timer may be adjusted based upon observed application and/or network conditions. Multiple device traffic inactivity timers may be used to enable timing traffic inactivity of each application or groups of applications executing on the mobile device.

摘要翻译： 提供了存储在非暂时性计算机可读介质中的方法，设备和指令，用于通过确定何时在移动设备上执行的应用停止使用到蜂窝电信网络的连接来自适应地调整移动设备何时请求快速休眠（FD）。 在移动设备的处理器上执行的自适应快速休眠控制器功能监视应用的网络业务活动。 自适应快速休眠控制器功能可以确定应该使用设备流量不活动定时器来释放开放的网络连接，该定时器使应用程序的网络不活动的持续时间持续。 可以基于观察到的应用和/或网络条件来调整设备流量不活动定时器的持续时间。 可以使用多个设备流量不活动定时器来启用在移动设备上执行的每个应用或应用组的定时业务不活动。

公开(公告)号：US20080101504A1

公开(公告)日：2008-05-01

申请号：US11924610

申请日：2007-10-26

申请人： Yuheng Huang ,  Ozgur Dural ,  Samir Soliman ,  Amol Rajkotia

发明人： Yuheng Huang ,  Ozgur Dural ,  Samir Soliman ,  Amol Rajkotia

IPC分类号： H04L27/06 ,  H03D1/00

CPC分类号： H04L27/2656 ,  H04L5/0016 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2665 ,  H04L27/2675

摘要： An apparatus for detecting an OFDM symbol encoded with a transmitted sequence including a filter having coefficients based on a simplified version of the transmitted sequence is disclosed. A computer program product having code and a wireless communications apparatus for performing the method are also described herein.

摘要翻译： 公开了一种用于检测由发送序列编码的OFDM符号的装置，该OFDM符号包括基于所发送序列的简化版本的具有系数的滤波器。 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：US20080101439A1

公开(公告)日：2008-05-01

申请号：US11924606

申请日：2007-10-26

申请人： Yuheng Huang ,  Ozgur Dural ,  Samir Soliman ,  Amol Rajkotia

发明人： Yuheng Huang ,  Ozgur Dural ,  Samir Soliman ,  Amol Rajkotia

IPC分类号： H04B1/00 ,  H04B1/713

CPC分类号： H04L27/2656 ,  H04L5/0016 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2665 ,  H04L27/2675

摘要： 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.

摘要翻译： 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：US08355666B2

公开(公告)日：2013-01-15

申请号：US12208280

申请日：2008-09-10

申请人： Amol Rajkotia ,  Yuheng Huang ,  Ozgur Dural

发明人： Amol Rajkotia ,  Yuheng Huang ,  Ozgur Dural

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

CPC分类号： H04K3/224 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/006

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： H04B1/00

CPC分类号： H04L27/2656 ,  H04L5/0016 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2665 ,  H04L27/2675

摘要： 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.

摘要翻译： 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：US20080101520A1

公开(公告)日：2008-05-01

申请号：US11924609

申请日：2007-10-26

申请人： Yuheng Huang ,  Ozgur Dural ,  Samir Soliman ,  Amol Rajkotia

发明人： Yuheng Huang ,  Ozgur Dural ,  Samir Soliman ,  Amol Rajkotia

IPC分类号： H04L7/00

CPC分类号： H04L27/2656 ,  H04L5/0016 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2665 ,  H04L27/2675

摘要： 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.

摘要翻译： 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：US08107561B2

公开(公告)日：2012-01-31

申请号：US11924609

申请日：2007-10-26

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

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

IPC分类号： H04L27/00

CPC分类号： H04L27/2656 ,  H04L5/0016 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2665 ,  H04L27/2675

摘要： 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.

摘要翻译： 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：US20100062705A1

公开(公告)日：2010-03-11

申请号：US12208280

申请日：2008-09-10

申请人： Amol Rajkotia ,  Yuheng Huang ,  Ozgur Dural

发明人： Amol Rajkotia ,  Yuheng Huang ,  Ozgur Dural

IPC分类号： H04K3/00 ,  H04M1/00

CPC分类号： H04K3/224 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/006

摘要： 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.

摘要翻译： 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。