公开(公告)号：US20140341326A1

公开(公告)日：2014-11-20

申请号：US14280348

申请日：2014-05-16

Applicant: QUALCOMM Incorporated

Inventor： Jun Won Choi ,  Won-Joon Choi

IPC: H04L25/02

CPC classification number: H04L25/0214 ,  H04L25/0202 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/0232 ,  H04L25/0236 ,  H04L27/2647

Abstract: Methods, systems, and apparatuses to estimate a channel with discontinuous instances of a pilot signal. A pilot signal is received during a first and second time period. The time periods are separated by a blank period. The pilot signal is not received during the blank period. A pilot signal received during the second time period is combined with a pilot signal received during the first time period. A channel estimate is based on the combination. According to a second method, pilot signals are received. A first and second channel estimate is calculated based on the pilot signals. Data symbols are received following the pilot signals. A third channel estimate is extrapolated from the channel estimates. This channel estimate corresponds to a virtualized instance of the pilot signal. The data symbols are interpolated based on the second and third channel estimates.

Abstract translation: 用于估计具有导频信号的不连续实例的信道的方法，系统和装置。 在第一和第二时间段期间接收到导频信号。 时间段以空白期隔开。 在空白期间不接收导频信号。 在第二时间段期间接收的导频信号与在第一时间段期间接收的导频信号相组合。 频道估计是基于组合。 根据第二种方法，接收导频信号。 基于导频信号计算第一和第二信道估计。 在导频信号之后接收数据符号。 第三渠道估计值是从渠道估计值推断出来的。 该信道估计对应于导频信号的虚拟化实例。 基于第二和第三信道估计来内插数据符号。

公开(公告)号：US09414372B2

公开(公告)日：2016-08-09

申请号：US13797907

申请日：2013-03-12

Applicant: QUALCOMM Incorporated

Inventor： Jun Won Choi ,  Huilin Xu ,  Raghu Narayan Challa

IPC: H04W72/04 ,  H04L27/00 ,  H04L27/26

CPC classification number: H04W72/042 ,  H04L27/0014 ,  H04L27/2657 ,  H04L27/2685 ,  H04L2027/0024 ,  H04L2027/0053 ,  H04L2027/0069

Abstract: A method for speeding up a filter tracking speed includes scaling filter coefficients based at least in part on an uplink/downlink configuration in a time division duplex (TDD) or a multimedia broadcast single frequency network (MBSFN) system. The method also includes applying scaled filter coefficients during at least one downlink subframe to control a filter tracking speed.

Abstract translation: 用于加速滤波器跟踪速度的方法包括至少部分地基于时分双工（TDD）或多媒体广播单频网络（MBSFN）系统中的上行链路/下行链路配置来缩放滤波器系数。 该方法还包括在至少一个下行链路子帧期间应用缩放的滤波器系数以控制滤波器跟踪速度。

公开(公告)号：US09131389B2

公开(公告)日：2015-09-08

申请号：US13779691

申请日：2013-02-27

Applicant: QUALCOMM Incorporated

Inventor： Jun Won Choi ,  Raghu Narayan Challa

IPC: H04W24/00 ,  H04L25/02

CPC classification number: H04W24/00 ,  H04L25/0224

Abstract: A method of wireless communication includes selecting three or more reference signal symbols from at least two subframes detected within a measurement window location during a connected mode gap. The selected reference signal symbols are selected from reference signal symbols of at least one non-MBSFN subframe and one reference signal symbol of a special subframe. The method also includes combining the selected reference signal symbols and estimating a reference signal received power (RSRP) based at least in part on a result of the combining.

Abstract translation: 无线通信的方法包括在连接的模式间隙期间从在测量窗口位置内检测到的至少两个子帧中选择三个或更多个参考信号符号。 选择的参考信号符号从至少一个非MBSFN子帧和特殊子帧的一个参考信号符号的参考信号符号中选择。 该方法还包括组合所选择的参考信号符号并且至少部分地基于组合的结果来估计参考信号接收功率（RSRP）。

公开(公告)号：US20130242820A1

公开(公告)日：2013-09-19

申请号：US13797907

申请日：2013-03-12

Applicant: QUALCOMM INCORPORATED

Inventor： Jun Won Choi ,  Huilin Xu ,  Raghu Narayan Challa

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04L27/0014 ,  H04L27/2657 ,  H04L27/2685 ,  H04L2027/0024 ,  H04L2027/0053 ,  H04L2027/0069

Abstract: A method for speeding up a filter tracking speed includes scaling filter coefficients based at least in part on an uplink/downlink configuration in a time division duplex (TDD) or a multimedia broadcast single frequency network (MBSFN) system. The method also includes applying scaled filter coefficients during at least one downlink subframe to control a filter tracking speed.

Abstract translation: 用于加速滤波器跟踪速度的方法包括至少部分地基于时分双工（TDD）或多媒体广播单频网络（MBSFN）系统中的上行链路/下行链路配置来缩放滤波器系数。 该方法还包括在至少一个下行链路子帧期间应用缩放的滤波器系数以控制滤波器跟踪速度。

公开(公告)号：US20130223256A1

公开(公告)日：2013-08-29

申请号：US13779691

申请日：2013-02-27

Applicant: QUALCOMM Incorporated

Inventor： Jun Won Choi ,  Raghu Narayan Challa

IPC: H04W24/00

CPC classification number: H04W24/00 ,  H04L25/0224

Abstract: A method of wireless communication includes selecting three or more reference signal symbols from at least two subframes detected within a measurement window location during a connected mode gap. The selected reference signal symbols are selected from reference signal symbols of at least one non-MBSFN subframe and one reference signal symbol of a special subframe. The method also includes combining the selected reference signal symbols and estimating a reference signal received power (RSRP) based at least in part on a result of the combining.

Abstract translation: 无线通信的方法包括在连接的模式间隙期间从在测量窗口位置内检测到的至少两个子帧中选择三个或更多个参考信号符号。 选择的参考信号符号从至少一个非MBSFN子帧和特殊子帧的一个参考信号符号的参考信号符号中选择。 该方法还包括组合所选择的参考信号符号并且至少部分地基于组合的结果来估计参考信号接收功率（RSRP）。