公开(公告)号：US09621308B2

公开(公告)日：2017-04-11

申请号：US14486418

申请日：2014-09-15

Applicant: Motorola Mobility LLC

Inventor： Sandeep H. Krishnamurthy

IPC: H04L1/20 ,  H04L1/00 ,  H04W24/02 ,  H04B17/24 ,  H04B17/345 ,  H04B7/06 ,  H04W24/10 ,  H04W28/04 ,  H04B17/327

CPC classification number: H04L1/203 ,  H04B7/063 ,  H04B7/0639 ,  H04B17/24 ,  H04B17/327 ,  H04B17/345 ,  H04L1/0026 ,  H04W24/02 ,  H04W24/10 ,  H04W28/04

Abstract: A wireless communication terminal is disclosed. The terminal includes a transceiver coupled to a processor configured to determine that a subset of a plurality of resource elements (REs) must be excluded from demodulation, the plurality of REs received in a signal from a first base station, to estimate a hypothetical block error rate (BLER) based on the signal received from the first base station by excluding the subset of the plurality of REs, and to estimate channel state information based on the hypothetical BLER.

公开(公告)号：US09025556B2

公开(公告)日：2015-05-05

申请号：US13949306

申请日：2013-07-24

Applicant: Motorola Mobility LLC

Inventor： Sandeep H. Krishnamurthy ,  Michael E. Buckley ,  Murali Narasimha

IPC: H04W4/00 ,  H04W72/08 ,  H04W24/10 ,  H04W36/30 ,  H04W68/02 ,  H04W84/04

CPC classification number: H04W72/082 ,  H04W24/10 ,  H04W36/30 ,  H04W68/02 ,  H04W84/045

Abstract: A method in a wireless terminal transceiver includes receiving a sequence of frames from a first base station, wherein each frame in the sequence contains a first set of time-frequency resources which may be used for scheduling data and a second set of time-frequency resources not used for scheduling data. The transceiver also receives a message from the first base station identifying a third set of time-frequency resources that is a subset of the first set of time-frequency resources, and estimates the channel state based on the transmission received in the third set of time-frequency resources.

Abstract translation: 无线终端收发机中的方法包括：从第一基站接收帧序列，其中该序列中的每个帧包含可用于调度数据的第一组时间 - 频率资源和第二组时间 - 频率资源 不用于调度数据。 收发机还从第一基站接收标识作为第一组时间 - 频率资源的子集的第三组时间 - 频率资源的消息，并且基于在第三组时间段中接收到的传输来估计信道状态 频率资源。

公开(公告)号：US09008665B2

公开(公告)日：2015-04-14

申请号：US14160598

申请日：2014-01-22

Applicant: Motorola Mobility LLC

Inventor： Murali Narasimha ,  Sandeep H. Krishnamurthy ,  Ravi Kuchibhotla

IPC: H04W36/00 ,  H04W36/16 ,  H04W88/08 ,  H04W8/26

CPC classification number: H04W36/0016 ,  H04W8/26 ,  H04W36/0055 ,  H04W36/0061 ,  H04W36/16 ,  H04W88/08

Abstract: A method (700, 800) and apparatus (500, 600) for distinguishing cells with the same physical cell identifier is disclosed. The method can include receiving (820) a handover request message including target cell timing offset information at a potential target cell base station, where the potential target cell base station can have a physical cell identifier. The method can include comparing (830) the received target cell timing offset information with stored timing offset information at the potential target cell base station. The method can include sending (840) a handover request accept message if the received target cell timing offset information is substantially equal to the stored timing offset information. The method can also include receiving (720), at a wireless terminal, a target cell physical cell identifier and determining (730) a target cell timing offset of a radio frame of the target cell with respect to reference timing of a serving cell. The method can include sending (740) a measurement report including the target cell physical cell identifier and the target cell timing offset.

公开(公告)号：US20150003275A1

公开(公告)日：2015-01-01

申请号：US14486418

申请日：2014-09-15

Applicant: Motorola Mobility LLC

Inventor： Sandeep H. Krishnamurthy

IPC: H04L1/20 ,  H04W24/02

CPC classification number: H04L1/203 ,  H04B7/063 ,  H04B7/0639 ,  H04B17/24 ,  H04B17/327 ,  H04B17/345 ,  H04L1/0026 ,  H04W24/02 ,  H04W24/10 ,  H04W28/04

Abstract: A wireless communication terminal is disclosed. The terminal includes a transceiver coupled to a processor configured to determine that a subset of a plurality of resource elements (REs) must be excluded from demodulation, the plurality of REs received in a signal from a first base station, to estimate a hypothetical block error rate (BLER) based on the signal received from the first base station by excluding the subset of the plurality of REs, and to estimate channel state information based on the hypothetical BLER.

Abstract translation: 公开了一种无线通信终端。 终端包括耦合到处理器的收发器，其被配置为确定必须从解调中排除多个资源元素（RE）的子集，在来自第一基站的信号中接收到的多个RE，以估计假设块误差 基于从第一基站接收到的信号，通过排除多个RE的子集，并且基于假设的BLER来估计信道状态信息。

公开(公告)号：US20140362938A1

公开(公告)日：2014-12-11

申请号：US14292987

申请日：2014-06-02

Applicant: MOTOROLA MOBILITY LLC

Inventor： Sandeep H. Krishnamurthy ,  Tyler A. Brown ,  Robert T. Love ,  Vijay Nangia

IPC: H04B7/04 ,  H04W72/02

CPC classification number: H04W72/02 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04B7/0663 ,  H04L5/0051 ,  H04W72/0413

Abstract: Disclosed are methods for codebook sub-sampling. In various implementations, a wireless terminal receives a reference signal, determines, based on the reference signal, a first precoding index i2 for a first subband and a second precoding index i2′ for a second subband. The wireless terminal transmits a representation of i2 and a representation of i2′ to a base station. In various implementations, i2′ belongs to the set S12 which, in one implementation, equals {mod(i2−K1+k,K), k=0, 1, . . . , K2}, where K1>1, and where K2>1 and K>1 are integers. According to an implementation, the wireless terminal receives the reference signal from a first base station and transmits the representations of i2 and i2′ to a second base station.

Abstract translation: 公开了码本子采样的方法。 在各种实现中，无线终端接收参考信号，基于参考信号确定第一子带的第一预编码索引i2和用于第二子带的第二预编码索引i2'。 无线终端向基站发送i2的表示和i2'的表示。 在各种实现中，i2'属于集合S12，在一个实现中，其等于{mod（i2-K1 + k，K），k = 0,1。 。 。 ，K2}，其中K1> 1，其中K2> 1和K> 1是整数。 根据实施方式，无线终端从第一基站接收参考信号，并将i2和i2'的表示发送到第二基站。

公开(公告)号：US20140177745A1

公开(公告)日：2014-06-26

申请号：US13722148

申请日：2012-12-20

Applicant: MOTOROLA MOBILITY LLC

Inventor： Sandeep H. Krishnamurthy ,  Tyler A. Brown ,  Colin D. Frank ,  Robert T. Love ,  Vijay Nangia

IPC: H04B7/04

CPC classification number: H04B7/0413 ,  H04B7/0456 ,  H04B7/0619 ,  H04B7/063 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0647

Abstract: A method and apparatus provide antenna array channel feedback. The method can include receiving a first set of channel state information reference signals on resource elements, and a second set of channel state information reference signals on resource elements. The method can include determining a first precoding matrix based on the received first set of channel state information reference signals. The first precoding matrix can be chosen from a first codebook. The method can include determining a second precoding matrix based on the second set of channel state information reference signals. The second precoding matrix can be chosen from a second codebook that is different than the first codebook. The method can include transmitting a representation of at least one of the first precoding matrix and the second precoding matrix.

Abstract translation: 一种方法和装置提供天线阵列信道反馈。 该方法可以包括在资源元素上接收第一组信道状态信息参考信号，以及在资源元素上接收第二组信道状态信息参考信号。 该方法可以包括基于所接收的第一组信道状态信息参考信号来确定第一预编码矩阵。 第一预编码矩阵可以从第一码本中选择。 该方法可以包括基于第二组信道状态信息参考信号来确定第二预编码矩阵。 可以从与第一码本不同的第二码本中选择第二预编码矩阵。 该方法可以包括传输第一预编码矩阵和第二预编码矩阵中的至少一个的表示。

公开(公告)号：US20130315084A1

公开(公告)日：2013-11-28

申请号：US13953768

申请日：2013-07-30

Applicant: MOTOROLA MOBILITY LLC

Inventor： Sandeep H. Krishnamurthy ,  Colin D. Frank

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04L5/001 ,  H04L27/2647 ,  H04L27/3863

Abstract: A method in a wireless communication terminal includes receiving an aggregated carrier including a first component carrier and a second component carrier, determining a level of interference from a signal received on the first component carrier to a signal on the second component carrier based on a signal characteristic of the first component carrier and a signal characteristic of the second component carrier, and providing signal interference information to a serving base station if the determined interference level satisfies a condition.

Abstract translation: 无线通信终端中的方法包括：接收包括第一分量载波和第二分量载波的聚合载波，基于信号特性，确定从第一分量载波上接收的信号到第二分量载波上的信号的干扰电平 以及所述第二分量载波的信号特性，并且如果所确定的干扰电平满足条件，则向服务基站提供信号干扰信息。

公开(公告)号：US20140198765A1

公开(公告)日：2014-07-17

申请号：US14211903

申请日：2014-03-14

Applicant: Motorola Mobility LLC

Inventor： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Ravikiran Nory ,  Kenneth A. Stewart

IPC: H04W52/24 ,  H04W52/10 ,  H04W52/36 ,  H04W72/02 ,  H04W52/16

CPC classification number: H04W52/243 ,  H04L5/0035 ,  H04L5/0062 ,  H04L5/143 ,  H04W4/023 ,  H04W52/10 ,  H04W52/16 ,  H04W52/365 ,  H04W72/02 ,  H04W72/048 ,  H04W72/1268 ,  H04W74/00 ,  H04W92/20 ,  Y02D70/1222 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164

Abstract: Various methods for controlling an aggressor user equipment (UE) can use two transmission power control loops to mitigate UE-to-UE adjacent carrier frequency band interference to a geographically proximal victim UE. The aggressor UE can select between different transmission power parameters based on two (or more) power values. The usage of any particular power value depends on the time period of the transmission. For example, if a proximal victim UE is scheduled to receive when the aggressor UE is scheduled to transmit, a lower power value may be selected as instructed by a co-scheduler or determined by the aggressor UE. The aggressor UE can also send dual power headroom reports to its serving base station based on the two power values.

Abstract translation: 用于控制侵略者用户设备（UE）的各种方法可以使用两个传输功率控制环路来减轻到地理上最近的受害者UE的UE到UE相邻载波频带干扰。 攻击者UE可以基于两个（或多个）功率值在不同的发射功率参数之间进行选择。 任何特定功率值的使用取决于传输的时间段。 例如，如果近端受害者UE被调度为在攻击者UE被调度为发送时接收，则可以如共同调度器指示或由侵略者UE确定的那样选择较低功率值。 攻击者UE还可以基于两个功率值向其服务基站发送双功率余量报告。

公开(公告)号：US20140177744A1

公开(公告)日：2014-06-26

申请号：US13721938

申请日：2012-12-20

Applicant: MOTOROLA MOBILITY LLC

Inventor： Sandeep H. Krishnamurthy ,  Tyler A. Brown ,  Colin D. Frank ,  Robert T. Love ,  Vijay Nangia

IPC: H04B7/04

CPC classification number: H04B7/0469 ,  H04B7/0478 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04L25/03343 ,  H04L25/03891

Abstract: A method and apparatus provide antenna array channel feedback. The method can include receiving, at a wireless terminal, a set of channel state information reference signals. The method can include determining a precoding matrix based on the received set of channel state information reference signals. The precoding matrix can have a representation in terms of three components. The first component of the three components can be determined from a first set of vectors. The second component of the three components can be determined from a first set of parameters. The third component of the three components can be determined from a second set of parameters. The second set of parameters can be a set of unit-magnitude scalars. The method can include transmitting, by the wireless terminal, a representation of at least one of the first component, the second component, and the third component.

Abstract translation: 一种方法和装置提供天线阵列信道反馈。 该方法可以包括在无线终端处接收一组信道状态信息参考信号。 该方法可以包括基于所接收的信道状态信息参考信号集来确定预编码矩阵。 预编码矩阵可以具有三个部分的表示。 可以从第一组向量确定三个分量的第一分量。 可以从第一组参数确定三个分量的第二分量。 可以从第二组参数确定三个分量的第三分量。 第二组参数可以是一组单位幅度标量。 该方法可以包括由无线终端发送第一组件，第二组件和第三组件中的至少一个的表示。

公开(公告)号：US20140177683A1

公开(公告)日：2014-06-26

申请号：US13722077

申请日：2012-12-20

Applicant: MOTOROLA MOBILITY LLC

Inventor： Sandeep H. Krishnamurthy ,  Tyler A. Brown ,  Colin D. Frank ,  Robert T. Love ,  Vijay Nangia

IPC: H04B7/04

CPC classification number: H04B7/0469 ,  H04B7/0478 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04L25/03343 ,  H04L25/03891

Abstract: A method and apparatus provide antenna array channel feedback. The method can include receiving, at a wireless terminal, a set of channel state information reference signals. The method can include determining, by the wireless terminal, based on the received set of channel state information reference signals, a precoding matrix that is a product of a first precoding matrix and a second precoding matrix. The first precoding matrix can have at least a representation in terms of a representation matrix. The representation matrix can be based on a matrix selected from a first codebook. The second precoding matrix can be based on a second codebook. The method can include transmitting, by the wireless terminal, a representation of at least one of the first precoding matrix and the second precoding matrix.

Abstract translation: 一种方法和装置提供天线阵列信道反馈。 该方法可以包括在无线终端处接收一组信道状态信息参考信号。 该方法可以包括由无线终端基于所接收的信道状态信息组参考信号来确定作为第一预编码矩阵和第二预编码矩阵的乘积的预编码矩阵。 第一预编码矩阵可以具有至少一个表示矩阵的表示。 表示矩阵可以基于从第一码本中选择的矩阵。 第二预编码矩阵可以基于第二码本。 该方法可以包括由无线终端发送第一预编码矩阵和第二预编码矩阵中的至少一个的表示。