公开(公告)号：US08223737B2

公开(公告)日：2012-07-17

申请号：US12137695

申请日：2008-06-12

申请人： Vijay Nangia ,  Kevin L. Baum ,  Brian K. Classon ,  Hyejung Jung ,  Robert T. Love ,  Kenneth A. Stewart

发明人： Vijay Nangia ,  Kevin L. Baum ,  Brian K. Classon ,  Hyejung Jung ,  Robert T. Love ,  Kenneth A. Stewart

IPC分类号： H04B7/208 ,  H04B7/00 ,  H04B1/00 ,  H04J1/00

CPC分类号： H04L5/0007 ,  H04L25/061

摘要： Receiving units will switch between performing a DC bias suppression and not removing the DC distortion at the receiver depending on the amount of DC interference level observed/measured/estimated. Since the overall DC interference is from all uplink transmitters, potentially at different power levels, the amount of DC distortion can be measured based on the difference between the received power level and the expected power level on the DC sub-carrier. Additionally it can be estimated based on the number of active transmitters, their allocation bandwidth, power control target and/or a rough estimate of the DC distortion introduced by each active transmitter and also the distortion introduced by the receiver. Once this distortion level is estimated, a decision is then made whether or not to remove the DC distortion.

摘要翻译： 接收单元将在执行直流偏置抑制之间进行切换，而不会根据观测/测量/估计的直流干扰电平的量消除接收机的直流失真。 由于整个DC干扰来自所有上行链路发射机，潜在地处于不同的功率电平，所以可以基于DC子载波上的接收功率电平与预期功率电平之间的差异来测量DC失真量。 此外，可以基于活动发射机的数量，其分配带宽，功率控制目标和/或由每个有源发射机引入的DC失真的粗略估计以及由接收机引入的失真来估计。 一旦估计出该失真水平，则作出是否去除DC失真的决定。

公开(公告)号：US20080049851A1

公开(公告)日：2008-02-28

申请号：US11466345

申请日：2006-08-22

申请人： Vijay Nangia ,  Kevin L. Baum ,  Brian K. Classon ,  Hyejung Jung ,  Robert T. Love ,  Kenneth A. Stewart

发明人： Vijay Nangia ,  Kevin L. Baum ,  Brian K. Classon ,  Hyejung Jung ,  Robert T. Love ,  Kenneth A. Stewart

IPC分类号： H04K1/10

CPC分类号： H04L5/0042 ,  H04B1/7103 ,  H04L5/0058 ,  H04L5/0094 ,  H04L27/2608 ,  H04L27/2618 ,  H04W72/00 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/12

摘要： A method in a wireless communication terminal (103), including receiving a radio resource allocation comprising a plurality of sub-carriers that is a subset of available sub-carriers, wherein the available sub-carriers include a DC sub-carrier, wherein the DC sub-carrier and all but one edge-most sub-carrier of the plurality of sub-carriers are designated for transmission if the DC sub-carrier is between any two sub-carriers of the allocation, and all of the sub-carriers except the DC sub-carrier from the plurality of sub-carriers are designated for transmission if the DC sub-carrier is not between any two sub-carriers of the allocation.

摘要翻译： 一种无线通信终端（103）中的方法，包括接收包括作为可用子载波的子集的多个子载波的无线电资源分配，其中所述可用子载波包括DC子载波，其中所述DC 如果直流副载波在分配的任何两个子载波之间，则副载波和多个子载波中除了一个最大副载波之外的所有副载波被指定用于传输，除了 如果DC子载波不在分配的任何两个子载波之间，则指定用于传输来自多个子载波的DC子载波。

公开(公告)号：US08509323B2

公开(公告)日：2013-08-13

申请号：US11466345

申请日：2006-08-22

申请人： Vijay Nangia ,  Kevin L. Baum ,  Brian K. Classon ,  Hyejung Jung ,  Robert T. Love ,  Kenneth A. Stewart

发明人： Vijay Nangia ,  Kevin L. Baum ,  Brian K. Classon ,  Hyejung Jung ,  Robert T. Love ,  Kenneth A. Stewart

IPC分类号： H04K1/10

CPC分类号： H04L5/0042 ,  H04B1/7103 ,  H04L5/0058 ,  H04L5/0094 ,  H04L27/2608 ,  H04L27/2618 ,  H04W72/00 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/12

摘要： A method in a wireless communication terminal includes receiving a radio resource allocation having a plurality of sub-carriers that are a subset of available sub-carriers. The available sub-carriers include a DC sub-carrier wherein the DC sub-carrier and all but one edge-most sub-carrier of the plurality of sub-carriers are designated for transmission if the DC sub-carrier is between any two sub-carriers of the allocation, and all of the sub-carriers except the DC sub-carrier are designated for transmission if the DC sub-carrier is not between any two sub-carriers of the allocation.

摘要翻译： 无线通信终端中的方法包括接收具有作为可用子载波的子集的多个子载波的无线电资源分配。 可用的子载波包括DC子载波，其中如果DC子载波在任何两个子载波之间，则DC子载波和多个子载波中除了一个最大副载波之外的所有子边， 如果DC子载波不在分配的任何两个子载波之间，则将分配的载波和除了DC子载波之外的所有子载波指定用于传输。

公开(公告)号：US08249193B2

公开(公告)日：2012-08-21

申请号：US12205580

申请日：2008-09-05

申请人： Vijay Nangia ,  Brian K. Classon ,  Hyejung Jung

发明人： Vijay Nangia ,  Brian K. Classon ,  Hyejung Jung

IPC分类号： H04L27/20

CPC分类号： H04L27/2613

摘要： A wireless communication device including a controller communicably coupled to a transceiver. In one embodiment, the controller generates a QPSK sequence having multiple elements wherein each element includes real and imaginary parts. In another embodiment, the sequence is selected from a groups of sequences stored on a user terminal. Thereafter, the controller generates a reference signal based on the information representative of the selected QPSK sequence.

摘要翻译： 一种无线通信设备，包括可通信地耦合到收发器的控制器。 在一个实施例中，控制器产生具有多个元素的QPSK序列，其中每个元素包括实部和虚部。 在另一个实施例中，该序列选自存储在用户终端上的一组序列。 此后，控制器基于表示所选QPSK序列的信息产生参考信号。

公开(公告)号：US20090310589A1

公开(公告)日：2009-12-17

申请号：US12137695

申请日：2008-06-12

申请人： Vijay Nangia ,  Kevin L. Baum ,  Brian K. Classon ,  Hyejung Jung ,  Robert T. Love ,  Kenneth A. Stewart

发明人： Vijay Nangia ,  Kevin L. Baum ,  Brian K. Classon ,  Hyejung Jung ,  Robert T. Love ,  Kenneth A. Stewart

IPC分类号： H04J1/00

CPC分类号： H04L5/0007 ,  H04L25/061

摘要： Receiving units will switch between performing a DC bias suppression and not removing the DC distortion at the receiver depending on the amount of DC interference level observed/measured/estimated. Since the overall DC interference is from all uplink transmitters, potentially at different power levels, the amount of DC distortion can be measured based on the difference between the received power level and the expected power level on the DC sub-carrier. Additionally it can be estimated based on the number of active transmitters, their allocation bandwidth, power control target and/or a rough estimate of the DC distortion introduced by each active transmitter and also the distortion introduced by the receiver. Once this distortion level is estimated, a decision is then made whether or not to remove the DC distortion.

摘要翻译： 接收单元将在执行直流偏置抑制之间进行切换，而不会根据观测/测量/估计的直流干扰电平的量消除接收机的直流失真。 由于整个DC干扰来自所有上行链路发射机，潜在地处于不同的功率电平，所以可以基于DC子载波上的接收功率电平与预期功率电平之间的差异来测量DC失真量。 此外，可以基于活动发射机的数量，其分配带宽，功率控制目标和/或由每个有源发射机引入的DC失真的粗略估计以及由接收机引入的失真来估计。 一旦估计出该失真水平，则作出是否去除DC失真的决定。

公开(公告)号：US09025478B2

公开(公告)日：2015-05-05

申请号：US13587314

申请日：2012-08-16

申请人： Hyejung Jung ,  Colin D. Frank ,  Sandeep H. Krishnamurthy ,  Vijay Nangia

发明人： Hyejung Jung ,  Colin D. Frank ,  Sandeep H. Krishnamurthy ,  Vijay Nangia

IPC分类号： H04W4/00 ,  H04J3/14 ,  H04W72/08 ,  H04B17/00 ,  H04W52/36 ,  H04W72/12 ,  H04W88/06 ,  H04W52/24 ,  H04W52/34

CPC分类号： H04J11/005 ,  H04B17/345 ,  H04L5/0007 ,  H04W52/146 ,  H04W52/16 ,  H04W52/243 ,  H04W52/34 ,  H04W52/365 ,  H04W52/367 ,  H04W72/0446 ,  H04W72/082 ,  H04W72/1215 ,  H04W88/06

摘要： A wireless communication terminal that has the self-interference due to the support of carrier aggregation, aggregating and jointly using two or more component carriers for transmission and reception, performs a first set of measurements on a received signal on a first operating frequency, wherein the first set of measurements are performed during which the wireless terminal transmits or receives signals on a second operating frequency. In an alternative embodiment, the wireless communication terminal changes the maximum transmit power limit on a first operating frequency on a per-slot basis to reduce the impact of harmonic or intermodulation distortion on a received signal at a second operating frequency.

摘要翻译： 由于支持载波聚合，聚合和联合使用两个或多个分量载波进行发送和接收，具有自干扰的无线通信终端对第一工作频率上的接收信号执行第一组测量，其中， 执行第一组测量，在此期间无线终端在第二操作频率上发送或接收信号。 在替代实施例中，无线通信终端在每个时隙基础上改变第一工作频率上的最大发射功率限制，以减少谐波或互调失真对在第二工作频率下的接收信号的影响。

公开(公告)号：US20130287150A1

公开(公告)日：2013-10-31

申请号：US13456605

申请日：2012-04-26

申请人： Hyejung Jung ,  Vijay Nangia

发明人： Hyejung Jung ,  Vijay Nangia

IPC分类号： H04L27/06 ,  H04B1/10

CPC分类号： H04L5/0023 ,  H04B7/0413 ,  H04L5/0007 ,  H04L25/03197 ,  H04L25/03318 ,  H04L27/2601 ,  H04L2025/03426

摘要： A joint soft output ML receiver that is able to reduce interference based on partial transmission information (i.e., without knowing the existence of other layers or other users and their modulation schemes) is described. In one implementation, the partial information based joint ML receiver can achieve performance that is similar to full information based joint ML receivers even when full information regarding the interfering UE is not available at the desired UE due to transparent Multi-user Multiple Input and Multiple Output (MU-MIMO) transmission (such as with TM 8 and TM 9 transmissions in EUTRA LTE).

摘要翻译： 描述了能够基于部分传输信息（即，不知道其他层或其他用户的存在及其调制方案）来减少干扰的联合软输出ML接收器。 在一个实现中，由于透明的多用户多输入和多输出，即使关于干扰UE的全部信息在期望​​的UE处不可用，基于部分信息的联合ML接收机也可以实现类似于基于全信息的联合ML接收机的性能 （MU-MIMO）传输（例如在EUTRA LTE中使用TM8和TM9传输）。

公开(公告)号：US20120164948A1

公开(公告)日：2012-06-28

申请号：US12976117

申请日：2010-12-22

申请人： Murali Narasimha ,  Vijay Nangia ,  Colin D. Frank ,  Hyejung Jung

发明人： Murali Narasimha ,  Vijay Nangia ,  Colin D. Frank ,  Hyejung Jung

IPC分类号： H04B15/00

CPC分类号： H04W72/1215 ,  H04L1/0026 ,  H04L1/188 ,  H04W24/10 ,  H04W88/06

摘要： A wireless terminal that supports operation on a first wireless technology and operation on a second wireless technology performs a first set of measurements on a received signal on first operating frequency of the first wireless technology, wherein the first set of measurements are performed during time periods that overlap time periods during which the wireless terminal transmits signals of the second wireless technology. The terminal also performs interference avoidance to avoid interference from transmissions of signals of the second wireless technology to reception of signals of the first wireless technology if the first set of measurements indicates interference due to transmission of signals of the second wireless technology by the wireless terminal.

摘要翻译： 支持对第一无线技术的操作和在第二无线技术上的操作的无线终端在第一无线技术的第一操作频率上对接收到的信号执行第一组测量，其中第一组测量在时间段 无线终端发送第二无线技术的信号的重叠时间段。 如果第一组测量指示由无线终端发送第二无线技术的信号的干扰，则终端还执行干扰避免以避免从第二无线技术的信号的传输到第一无线技术的信号的接收的干扰。

公开(公告)号：US10123345B2

公开(公告)日：2018-11-06

申请号：US12976117

申请日：2010-12-22

申请人： Murali Narasimha ,  Vijay Nangia ,  Colin D. Frank ,  Hyejung Jung

发明人： Murali Narasimha ,  Vijay Nangia ,  Colin D. Frank ,  Hyejung Jung

IPC分类号： H04W72/12 ,  H04L1/18 ,  H04W24/10 ,  H04W88/06 ,  H04L1/00

摘要： A wireless terminal that supports operation on a first wireless technology and operation on a second wireless technology performs a first set of measurements on a received signal on first operating frequency of the first wireless technology, wherein the first set of measurements are performed during time periods that overlap time periods during which the wireless terminal transmits signals of the second wireless technology. The terminal also performs interference avoidance to avoid interference from transmissions of signals of the second wireless technology to reception of signals of the first wireless technology if the first set of measurements indicates interference due to transmission of signals of the second wireless technology by the wireless terminal.

公开(公告)号：US08750434B2

公开(公告)日：2014-06-10

申请号：US13456605

申请日：2012-04-26

申请人： Hyejung Jung ,  Vijay Nangia

发明人： Hyejung Jung ,  Vijay Nangia

IPC分类号： H04L27/06 ,  H03D1/04 ,  H04L5/12

CPC分类号： H04L5/0023 ,  H04B7/0413 ,  H04L5/0007 ,  H04L25/03197 ,  H04L25/03318 ,  H04L27/2601 ,  H04L2025/03426

摘要： A joint soft output ML receiver that is able to reduce interference based on partial transmission information (i.e., without knowing the existence of other layers or other users and their modulation schemes) is described. In one implementation, the partial information based joint ML receiver can achieve performance that is similar to full information based joint ML receivers even when full information regarding the interfering UE is not available at the desired UE due to transparent Multi-user Multiple Input and Multiple Output (MU-MIMO) transmission (such as with TM 8 and TM 9 transmissions in EUTRA LTE).

摘要翻译： 描述了能够基于部分传输信息（即，不知道其他层或其他用户的存在及其调制方案）来减少干扰的联合软输出ML接收器。 在一个实现中，由于透明的多用户多输入和多输出，即使关于干扰UE的全部信息在期望​​的UE处不可用，基于部分信息的联合ML接收机也可以实现类似于基于全信息的联合ML接收机的性能 （MU-MIMO）传输（例如在EUTRA LTE中使用TM8和TM9传输）。