公开(公告)号：US08331475B1

公开(公告)日：2012-12-11

申请号：US12406587

申请日：2009-03-18

申请人： Arul Durai Murugan Palanivelu ,  Leilei Song ,  Rohit U. Nabar ,  Jungwon Lee ,  Sayandev Mukherjee ,  Hui-Ling Lou

发明人： Arul Durai Murugan Palanivelu ,  Leilei Song ,  Rohit U. Nabar ,  Jungwon Lee ,  Sayandev Mukherjee ,  Hui-Ling Lou

IPC分类号： H04B7/02 ,  H04L27/28

CPC分类号： H04B7/0413 ,  H04L25/03242 ,  H04L25/03961 ,  H04L25/067 ,  H04L2025/03414 ,  H04L2025/0342

摘要： Systems and methods for detecting data in a multiple input/multiple output signal. The method includes receiving a first signal associated with a first data value and a second signal associated with a second data value. A distance value between the received second signal and each possible second data value is calculated. Coordinates for a hypothetical first signal in light of a first possible second data value are calculated, and the first coordinate value is quantized to a nearest constellation point. A distance value between the received second signal and each possible second data value is calculated using the calculated constellation points. A determination is made of a log-likelihood ratio based on the determined distance values.

摘要翻译： 用于检测多输入/多输出信号中的数据的系统和方法。 该方法包括接收与第一数据值相关联的第一信号和与第二数据值相关联的第二信号。 计算接收到的第二信号与每个可能的第二数据值之间的距离值。 计算出根据第一可能的第二数据值的假设第一信号的坐标，并且将第一坐标值量化到最接近的星座点。 使用所计算的星座点来计算所接收的第二信号与每个可能的第二数据值之间的距离值。 基于确定的距离值来确定对数似然比。

公开(公告)号：US08374293B1

公开(公告)日：2013-02-12

申请号：US13484043

申请日：2012-05-30

申请人： Jungwon Lee ,  Sayandev Mukherjee ,  Adina Matache

发明人： Jungwon Lee ,  Sayandev Mukherjee ,  Adina Matache

IPC分类号： H03D1/00

CPC分类号： H04W24/00 ,  H04B7/10 ,  H04B17/327 ,  H04L27/2601

摘要： Signal power of a received signal, which has a plurality of preamble sequences associated with sub-carrier signals received from a plurality of sub-carriers, in a cellular Orthogonal Frequency Division Multiplexing system may be estimated by estimating as power for at least one preamble sequence of a signal received at a selected receive antenna. The preamble sequence is associated with a base station and a set of sub-carriers. A differential received signal developed for one of the set of sub-carriers is correlated with a normalized differential transmit signal for the preamble sequence, and the estimate of the power for the at least one preamble sequence is extracted based on the correlation.

摘要翻译： 在蜂窝正交频分复用系统中，具有与从多个子载波接收的子载波信号相关联的多个前导码序列的接收信号的信号功率可以通过估计作为至少一个前同步码序列的功率来估计 在选定的接收天线处接收的信号。 前导序列与基站和一组子载波相关联。 对于一组子载波中的一个发展的差分接收信号与用于前导码序列的归一化差分发送信号相关，并且基于相关性提取至少一个前导序列的功率估计。

公开(公告)号：US08213556B1

公开(公告)日：2012-07-03

申请号：US12116885

申请日：2008-05-07

申请人： Jungwon Lee ,  Sayandev Mukherjee ,  Adina Matache

发明人： Jungwon Lee ,  Sayandev Mukherjee ,  Adina Matache

IPC分类号： H04B7/10

CPC分类号： H04W24/00 ,  H04B7/10 ,  H04B17/327 ,  H04L27/2601

摘要： Signal power of a received signal, which has a plurality of preamble sequences associated with sub-carrier signals received from a plurality of sub-carriers, in a cellular Orthogonal Frequency Division Multiplexing system may be estimated by estimating as power for at least one preamble sequence of a signal received at a selected receive antenna. The preamble sequence is associated with a base station and a set of sub-carriers. A differential received signal developed for one of the set of sub-carriers is correlated with a normalized differential transmit signal for the preamble sequence, and the estimate of the power for the at least one preamble sequence is extracted based on the correlation.

摘要翻译： 在蜂窝正交频分复用系统中，具有与从多个子载波接收的子载波信号相关联的多个前导码序列的接收信号的信号功率可以通过估计作为至少一个前同步码序列的功率来估计 在选定的接收天线处接收的信号。 前导序列与基站和一组子载波相关联。 对于一组子载波中的一个发展的差分接收信号与用于前导码序列的归一化差分发送信号相关，并且基于相关性提取至少一个前导序列的功率估计。

公开(公告)号：US08953529B2

公开(公告)日：2015-02-10

申请号：US12953330

申请日：2010-11-23

申请人： Hithesh Nama ,  Amit Butala ,  Sayandev Mukherjee

发明人： Hithesh Nama ,  Amit Butala ,  Sayandev Mukherjee

IPC分类号： H04L12/28 ,  H04W4/00 ,  H04W72/00 ,  H04W72/12

CPC分类号： H04W72/1252 ,  H04W72/1268

摘要： A method, apparatus and computer program product comprises determining a rise-over-thermal (RoT) budget associated with a cell within a communication network for user equipment served by the cell, determining a number of user equipment served by the cell to receive a minimum-grant of an uplink channel, determining a high-grant for allocation to a selected user equipment, the high-grant allowing the selected user equipment to communicate in the uplink channel of the communication network, the high-grant being based on the RoT budget, and allocating the high-grant to the selected user equipment and the minimum-grant to all other user equipment served by the cell.

摘要翻译： 方法，装置和计算机程序产品包括确定与由小区服务的用户设备的通信网络内的小区相关联的上升热（RoT）预算，确定由小区服务的用户数量以接收最小值 - 上行链路信道的授权，确定用于分配给所选择的用户设备的高准许，所述高准许允许所选择的用户设备在所述通信网络的上行链路信道中通信，所述高授权是基于所述RoT预算 并且向所选择的用户设备分配高授权，并将最小授权分配给由小区服务的所有其他用户设备。

公开(公告)号：US20140153390A1

公开(公告)日：2014-06-05

申请号：US14118473

申请日：2012-05-31

申请人： Hiroyuki Ishii ,  Sean A. Ramprashad ,  Sayandev Mukherjee

发明人： Hiroyuki Ishii ,  Sean A. Ramprashad ,  Sayandev Mukherjee

IPC分类号： H04W28/02

摘要： A hybrid user equipment and advanced user equipment data offloading architecture is provided. In this hybrid architecture, the advanced user equipment includes a backhaul link to a telecommunication network and/or the Internet. The user equipment can send and receive data through the advanced user equipment using the backhaul link.

摘要翻译： 提供混合用户设备和高级用户设备数据卸载架构。 在该混合架构中，高级用户设备包括到电信网络和/或因特网的回程链路。 用户设备可以使用回程链路通过高级用户设备发送和接收数据。

公开(公告)号：US07263371B2

公开(公告)日：2007-08-28

申请号：US10941066

申请日：2004-09-13

申请人： Suman Das ,  Thierry E. Klein ,  Kin K. Leung ,  Sayandev Mukherjee ,  George E. Rittenhouse ,  Louis Gwyn Samuel ,  Harish Viswanathan ,  Haitao Zheng

发明人： Suman Das ,  Thierry E. Klein ,  Kin K. Leung ,  Sayandev Mukherjee ,  George E. Rittenhouse ,  Louis Gwyn Samuel ,  Harish Viswanathan ,  Haitao Zheng

IPC分类号： H04Q7/20

CPC分类号： H04W68/00 ,  H04W68/04

摘要： A method for locating a mobile device in a wireless communications system comprised of a plurality of base stations is provided. The method comprises associating the mobile device with a first base station of the plurality of base stations. Thereafter, a paging signal is delivered from a subset of base stations associated with the first base station to the mobile device. The subset of base stations may correspond to a network active set of base stations associated with the mobile device. Thereafter, when a signal from one of the base stations in the subset of base stations is received, indicating that the mobile device responded to the paging signal from the one base station, then the mobile device is located and may be associated with the one base station for future paging attempts.

摘要翻译： 提供了一种用于在由多个基站组成的无线通信系统中定位移动设备的方法。 该方法包括将移动设备与多个基站中的第一基站相关联。 此后，寻呼信号从与第一基站相关联的基站的子集传送到移动设备。 基站的子集可以对应于与移动设备相关联的基站的网络主动集合。 此后，当接收到来自基站子集中的一个基站的信号时，指示移动设备响应于来自一个基站的寻呼信号，则移动设备被定位并且可以与一个基站相关联 电台用于未来的寻呼尝试。

公开(公告)号：US20060058038A1

公开(公告)日：2006-03-16

申请号：US10941066

申请日：2004-09-13

申请人： Suman Das ,  Thierry Klein ,  Kin Leung ,  Sayandev Mukherjee ,  George Rittenhouse ,  Louis Samuel ,  Harish Viswanathan ,  Haitao Zheng

发明人： Suman Das ,  Thierry Klein ,  Kin Leung ,  Sayandev Mukherjee ,  George Rittenhouse ,  Louis Samuel ,  Harish Viswanathan ,  Haitao Zheng

IPC分类号： H04Q7/20

CPC分类号： H04W68/00 ,  H04W68/04

摘要： A method for locating a mobile device in a wireless communications system comprised of a plurality of base stations is provided. The method comprises associating the mobile device with a first base station of the plurality of base stations. Thereafter, a paging signal is delivered from a subset of base stations associated with the first base station to the mobile device. The subset of base stations may correspond to a network active set of base stations associated with the mobile device. Thereafter, when a signal from one of the base stations in the subset of base stations is received, indicating that the mobile device responded to the paging signal from the one base station, then the mobile device is located and may be associated with the one base station for future paging attempts.

摘要翻译： 提供了一种用于在由多个基站组成的无线通信系统中定位移动设备的方法。 该方法包括将移动设备与多个基站中的第一基站相关联。 此后，寻呼信号从与第一基站相关联的基站的子集传送到移动设备。 基站的子集可以对应于与移动设备相关联的基站的网络主动集合。 此后，当接收到来自基站子集中的一个基站的信号时，指示移动设备响应于来自一个基站的寻呼信号，则移动设备被定位并且可以与一个基站相关联 电台用于未来的寻呼尝试。

公开(公告)号：US08412103B2

公开(公告)日：2013-04-02

申请号：US12571216

申请日：2009-09-30

申请人： Murari Srinivasan ,  Amit Butala ,  Sayandev Mukherjee

发明人： Murari Srinivasan ,  Amit Butala ,  Sayandev Mukherjee

IPC分类号： H04B1/00

CPC分类号： H04W52/40 ,  H04W16/08 ,  H04W52/243 ,  H04W52/343

摘要： Apparatus and methods for power control for mitigation or control of interference in a wireless communications environment. Power control techniques can consider the effectiveness of interference cancellation before making power control determinations. For example, where interference with a base station from an interfering wireless terminal is being canceled such that the effects of that interference are not adversely affecting operations of the base station, the offending terminal can be left unchanged, or its transmit power can be increased. On the other hand, where the interference cancellation operation is not able to cancel the effects of the interfering signal sufficiently, the operation can lower the uplink transmit power of the offending signal so as to not cause interference to the other base station.

摘要翻译： 用于减轻或控制无线通信环境中的干扰的功率控制的装置和方法。 功率控制技术可以在进行功率控制确定之前考虑干扰消除的有效性。 例如，在来自干扰无线终端的基站的干扰被取消的情况下，该干扰的影响不会对基站的动作产生不利影响，违规终端可以保持不变，或者可以增加发射功率。 另一方面，干扰消除动作不能充分抵消干扰信号的影响的情况下，能够降低违规信号的上行发送功率，不会对其他基站造成干扰。

公开(公告)号：US08391796B2

公开(公告)日：2013-03-05

申请号：US12571328

申请日：2009-09-30

申请人： Murari Srinivasan ,  Amit Butala ,  Sayandev Mukherjee

发明人： Murari Srinivasan ,  Amit Butala ,  Sayandev Mukherjee

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04W52/40 ,  H04W16/08 ,  H04W52/243 ,  H04W52/343

摘要： Apparatus and methods for power control for mitigation or control of interference in a wireless communications environment. Control techniques can consider the effect of interference on an access point and the access point can identify interfering wireless terminals and cause a message to be sent to a controlling access point of the interfering wireless terminal to cause the uplink power of the interfering wireless terminal to be adjusted.

摘要翻译： 用于减轻或控制无线通信环境中的干扰的功率控制的装置和方法。 控制技术可以考虑干扰对接入点的影响，接入点可以识别干扰的无线终端，并使消息发送到干扰无线终端的控制接入点，使得干扰无线终端的上行功率为 调整。

公开(公告)号：US07342958B2

公开(公告)日：2008-03-11

申请号：US10875755

申请日：2004-06-24

申请人： Suman Das ,  Thierry E. Klein ,  Sayandev Mukherjee

发明人： Suman Das ,  Thierry E. Klein ,  Sayandev Mukherjee

IPC分类号： H04B17/00

CPC分类号： H04L1/0002 ,  H04L1/00 ,  H04L2001/0096

摘要： A system for, and method of, determining channel throughput achievable under superposition coding given a finite, predetermined set of allowed transmission rates and a related system for, and method of, maximizing channel throughput. In one embodiment, the system includes: (1) a noise level calculator configured to calculate associated optimal noise levels for at least some rate subsets of the set of allowed transmission rates and (2) a code feasibility calculator associated with the noise level calculator and configured to determine whether feasible superposition codes exist for the at least some rate subsets given the associated optimal noise levels and thereby identify ones of the at least some rate subsets that are suitable for subsequent wireless transmissions.

摘要翻译： 在给定有限的预定的一组允许的传输速率和相关的系统以及最大化信道吞吐量的方法的情况下，确定在叠加编码下可实现的信道吞吐量的系统和方法。 在一个实施例中，系统包括：（1）噪声电平计算器，被配置为针对所述一组允许传输速率的至少一些速率子集计算相关联的最佳噪声电平;以及（2）与噪声电平计算器相关联的码可行性计算器， 被配置为确定对于给定相关联的最佳噪声电平的至少一些速率子集是否存在可行叠加代码，从而识别适合于后续无线传输的至少一些速率子集中的一些速率子集。