公开(公告)号：US20140064265A1

公开(公告)日：2014-03-06

申请号：US14069180

申请日：2013-10-31

Applicant: QUALCOMM Incorporated

Inventor： Valentin A. Gheoghiu ,  Ravi Palanki

IPC: H04W56/00 ,  H04J3/06

CPC classification number: H04W56/002 ,  H04J3/0638 ,  H04W56/0015

Abstract: A method for self synchronization by a base station is described. Network information is sent to a wireless communication device. The network information indicates a first time period. The first time period is a period of silence by the base station. Synchronization signals are monitored during the first time period. Monitoring synchronization signals includes not transmitting.

Abstract translation: 描述了由基站进行自同步的方法。 网络信息被发送到无线通信设备。 网络信息指示第一时间段。 第一个时期是基站的沉默期。 在第一时间段期间监视同步信号。 监视同步信号包括不发送。

公开(公告)号：US08660586B2

公开(公告)日：2014-02-25

申请号：US13720824

申请日：2012-12-19

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Ayman Fawzy Naguib

IPC: H04W24/00

CPC classification number: H04W4/04 ,  G01S5/0252 ,  G01S5/0278 ,  H04W4/025

Abstract: A method in a mobile terminal for estimating a position of the mobile terminal includes: receiving an expected measurement map indicative of an expected measurement of a parameter by the mobile terminal; receiving parameters of a matrix corresponding to the expected measurement map; capturing, by the mobile terminal, actual measurements of the parameter for a plurality of communication devices; and utilizing the received parameters and actual measurements to estimate the position of the mobile terminal, where each of the actual measurements and the expected measurement map comprise values indicative of a delay in a communication path between the mobile terminal and one or more of the plurality of communication devices.

Abstract translation: 用于估计移动终端的位置的移动终端中的方法包括：接收由移动终端指示参数的期望测量的预期测量图; 接收与预期测量图对应的矩阵的参数; 由移动终端捕获多个通信设备的参数的实际测量值; 并且利用所接收的参数和实际测量来估计移动终端的位置，其中实际测量和预期测量图中的每一个都包括指示移动终端与多个移动终端中的一个或多个之间的通信路径中的延迟的值 通讯设备。

公开(公告)号：US20130242959A1

公开(公告)日：2013-09-19

申请号：US13888292

申请日：2013-05-06

Applicant: QUALCOMM INCORPORATED

Inventor： Kapil Bhattad ,  Ravi Palanki

IPC: H04W72/08

CPC classification number: H04W72/082 ,  H04J3/02 ,  H04J11/005 ,  H04J11/0069 ,  H04W16/14 ,  H04W16/32

Abstract: Techniques for supporting communication in a heterogeneous network are described. In an aspect, communication in a dominant interference scenario may be supported by reserving subframes for a weaker base station observing high interference from a strong interfering base station. In another aspect, interference due to a first reference signal from a first station (e.g., a base station) may be mitigated by canceling the interference at a second station (e.g., a UE) or by selecting different resources for sending a second reference signal by the second station (e.g., another base station) to avoid collision with the first reference signal. In yet another aspect, a relay may transmit in an MBSFN mode in subframes that it listens to a macro base station and in a regular mode in subframes that it transmits to UEs. In yet another aspect, a station may transmit more TDM control symbols than a dominant interferer.

Abstract translation: 描述了用于支持异构网络中的通信的技术。 在一方面，可以通过为较弱的基站预留来自强干扰基站的高干扰的较小的基站来支持主要干扰场景中的通信。 在另一方面，可以通过消除第二站（例如，UE）处的干扰或通过选择用于发送第二参考信号的不同资源来减轻由于来自第一站（例如，基站）的第一参考信号引起的干扰 由第二站（例如，另一个基站）避免与第一参考信号的冲突。 在另一方面，中继器可以以MBSFN模式在其向宏基站收听的子帧中以及在向UE发送的子帧中以常规模式进行发送。 在另一方面，站可以传输比主要干扰源更多的TDM控制符号。

公开(公告)号：US20130219055A1

公开(公告)日：2013-08-22

申请号：US13847709

申请日：2013-03-20

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Alexei Y. Gorokhov ,  Naga Bhushan

IPC: H04W24/00

CPC classification number: H04W24/00 ,  H04B17/24 ,  H04B17/345 ,  H04J11/0053 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/02 ,  H04L5/0023 ,  H04L5/0035 ,  H04L2001/0092 ,  H04W72/0426 ,  H04W72/085 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146

Abstract: Systems and methodologies are described herein that facilitate interference measurement and reporting in a network multiple-in-multiple-out (N-MIMO) communication system. As described herein, a network device can measure and report interference corresponding to network nodes outside a designated set of nodes that can cooperatively serve the device. Respective interference reports can additionally identify dominant interfering nodes, correlation between transmit antennas of respective nodes, or the like. Subsequently, respective interference reports can be combined with per-node channel information to manage coordination and scheduling across respective network nodes. As further described herein, interference from a network node can be measured by observing reference and/or synchronization signals from the network node. To aid such observation, respective non-interfering network nodes can define null pilot intervals in which transmission is silenced or otherwise reduced. As additionally described herein, loading information broadcasted by respective interfering network nodes can be identified and utilized in connection with interference calculation.

Abstract translation: 本文描述了促进网络多输入多输出（N-MIMO）通信系统中的干扰测量和报告的系统和方法。 如本文所述，网络设备可以测量和报告对应于可以协作地服务于设备的指定节点集合之外的网络节点的干扰。 相应的干扰报告可以另外识别主要干扰节点，相应节点的发射天线之间的相关性等。 随后，各个干扰报告可以与每个节点的信道信息组合以管理跨各个网络节点的协调和调度。 如本文进一步描述的，可以通过观察来自网络节点的参考和/或同步信号来测量来自网络节点的干扰。 为了帮助这种观察，相应的非干扰网络节点可以定义空导频间隔，其中传输被静音或以其他方式减少。 如本文另外描述的，可以结合干扰计算来识别和利用由各个干扰网络节点广播的加载信息。

公开(公告)号：US20130176947A1

公开(公告)日：2013-07-11

申请号：US13784708

申请日：2013-03-04

Applicant: QUALCOMM Incorporated

Inventor： Michael M. Wang ,  Ravi Palanki

IPC: H04W24/00

CPC classification number: H04W64/00 ,  H04L5/0048 ,  H04W8/26 ,  H04W24/00

Abstract: Aspects describe a Highly Detectable Pilot that allows a mobile device to detect more base stations and, thus, can provide more accuracy in location estimate. A highly detectable pilot can be transmitted in a position in one or more data symbols that are not currently being utilized for transmission of data. In certain aspects, a transmitter may not transmit during other positions of the one or more data symbols. Transmission of the highly detectable pilot in two data symbols provide a receiver with more convergence time, however, it can take the receiver a longer amount of time to acquire an adequate number of pilots for a location estimate.

Abstract translation: 方面描述了一种高度可检测的导频，允许移动设备检测更多的基站，从而可以提供更准确的位置估计。 高度可检测的导频可以在当前不用于传输数据的一个或多个数据符号中的位置中传输。 在某些方面，发射机可能不会在一个或多个数据符号的其他位置发射。 在两个数据符号中传输高度可检测的导频为接收机提供了更多的收敛时间，然而，它可以使接收机花更长的时间来获取足够数量的导频用于位置估计。