公开(公告)号：US09986526B2

公开(公告)日：2018-05-29

申请号：US15063159

申请日：2016-03-07

Applicant: QUALCOMM Incorporated

Inventor： Aamod Dinkar Khandekar ,  Ravi Palanki ,  Ashwin Sampath ,  Naga Bhushan ,  Raja Sekhar Bachu

IPC: H04W64/00 ,  H04B7/15 ,  G01S5/00 ,  G01S5/02

CPC classification number: H04W64/003 ,  G01S5/0063 ,  G01S5/0081 ,  G01S5/0236 ,  G01S5/0273 ,  H04B7/15

Abstract: Systems and methodologies are described that facilitate transmitting positioning reference signals (PRS) differently for passive distributed elements. PRSs for passive distributed elements can be transmitted over disparate resources than those utilized for PRSs at a related access point, using different symbol sequences, and/or the like. In this regard, wireless devices can differentiate between PRSs from access points and those from passive distributed elements, which can mitigate confusion for processes involving such RSs, such as position determining. Alternatively, passive distributed elements can refrain from transmitting PRSs, and a corresponding access point can indicate to wireless devices to only determine positioning based on PRSs. Thus, the wireless devices can utilize the PRSs transmitted from the access point (and not other reference signals transmitted from the passive distributed element) to determine a position.

公开(公告)号：US09854590B2

公开(公告)日：2017-12-26

申请号：US14313780

申请日：2014-06-24

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Alexei Y. Gorokhov

IPC: H04W4/00 ,  H04W72/08 ,  H04L5/00 ,  H04L27/26 ,  H04W52/24 ,  H04W24/02

CPC classification number: H04W72/082 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0073 ,  H04L27/2601 ,  H04W24/02 ,  H04W52/244

Abstract: Techniques for communicating on multiple carriers in a wireless communication network are described. In an aspect, different transmit power levels may be used for different carriers to mitigate interference. A first base station may be assigned one or more carriers among multiple carriers available for communication. A second base station may be assigned one or more carriers not assigned to the first base station. Each base station may communicate on each assigned carrier at a first (e.g., full) transmit power level and may communicate on each unassigned carrier at a second (e.g., lower) transmit power level lower. The first and second base stations may belong in different power classes or support different association types. In another aspect, control information may be sent on a designated carrier to support communication on multiple carriers. In yet another aspect, a base station may broadcast bar information indicating the status of carriers.

公开(公告)号：US09485773B2

公开(公告)日：2016-11-01

申请号：US13888292

申请日：2013-05-06

Applicant: QUALCOMM INCORPORATED

Inventor： Kapil Bhattad ,  Ravi Palanki

IPC: H04W4/00 ,  H04B7/14 ,  H04W72/08 ,  H04W16/14 ,  H04J11/00 ,  H04J3/02 ,  H04W16/32

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：US09426670B2

公开(公告)日：2016-08-23

申请号：US13847709

申请日：2013-03-20

Applicant: QUALCOMM Incorporated

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

IPC: H04B17/00 ,  H04W24/00 ,  H04L1/02 ,  H04W72/08 ,  H04J11/00 ,  H04B17/24 ,  H04B17/345 ,  H04L1/00 ,  H04L5/00 ,  H04W72/04

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.

公开(公告)号：US20160088440A1

公开(公告)日：2016-03-24

申请号：US14490555

申请日：2014-09-18

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Nima Noorshams ,  Payam Pakzad

IPC: H04W4/04 ,  H04W24/10

CPC classification number: H04W4/04 ,  G01C21/206 ,  G01S5/0018 ,  G01S5/0242 ,  G01S19/39 ,  H04W24/10

Abstract: Method, mobile device, computer program product, and apparatus for optimizing sensor reporting are described. A mobile device can measure radio frequency (RF) signal characteristics while receiving data from one or more mobile device sensors. The mobile device may determine its relative displacement between RF signal measurements. The mobile device can send a representation of the RF signal characteristics and the displacement data to one or more servers. The representation displacement data may include one or more reliability characteristics and/or a displacement reliability rating. A server can obtain the displacement data and RF signal characteristics to determine positioning of wireless transmitters in an environment and build a positioning database.

Abstract translation: 描述了用于优化传感器报告的方法，移动设备，计算机程序产品和装置。 移动设备可以在从一个或多个移动设备传感器接收数据的同时测量射频（RF）信号特性。 移动设备可以确定其在RF信号测量之间的相对位移。 移动设备可以向一个或多个服务器发送RF信号特征和位移数据的表示。 表示位移数据可以包括一个或多个可靠性特性和/或位移可靠性等级。 服务器可以获得位移数据和RF信号特征，以确定无线发射机在环境中的定位并构建定位数据库。

公开(公告)号：US20160066157A1

公开(公告)日：2016-03-03

申请号：US14470626

申请日：2014-08-27

Applicant: QUALCOMM Incorporated

Inventor： Nima Noorshams ,  Payam Pakzad ,  Ravi Palanki

IPC: H04W4/04 ,  H04W4/00 ,  H04W24/10 ,  H04W4/02

CPC classification number: H04W4/04 ,  G01C21/206 ,  G01S5/0263 ,  G01S5/0294 ,  H04W4/023 ,  H04W4/027 ,  H04W4/80 ,  H04W24/10

Abstract: Method, hardware, device, computer program, and apparatus for positioning mobile devices in unmapped locations based on motion sensor and radio frequency measurements are described. A reference radio signal is received from a transmitter with an unknown absolute position and a reference range measurement is calculated. Mobile device motion sensor data is used to estimate a relative position of the mobile device. A sample radio signal is received from a transmitter with an unknown absolute position and a sample range measurement is calculated. The reference range measurement and the sample range measurement are compared. The estimated motion sensor based position is adjusted according to the result of the comparison.

Abstract translation: 描述了基于运动传感器和射频测量将移动设备定位在未映射位置的方法，硬件，设备，计算机程序和设备。 从具有未知绝对位置的发射机接收参考无线电信号，并且计算参考范围测量。 移动设备运动传感器数据用于估计移动设备的相对位置。 从具有未知绝对位置的发射机接收采样无线电信号，并且计算采样范围测量。 比较参考范围测量和采样范围测量。 根据比较结果调整基于运动传感器的估计位置。

公开(公告)号：US20160066151A1

公开(公告)日：2016-03-03

申请号：US14472196

申请日：2014-08-28

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Ayman Fawzy Naguib

IPC: H04W4/02 ,  H04L29/08

CPC classification number: H04W4/025 ,  G01S5/0252 ,  H04L67/10

Abstract: Example methods, apparatuses, or articles of manufacture are disclosed herein that may be utilized, in whole or in part, to facilitate or support one or more operations or techniques for selective crowdsourcing of location-related data, such as within an indoor or like environment, for example, for use in or with a mobile communication device.

Abstract translation: 本文公开的可以全部或部分地利用的示例性方法，装置或制品可促进或支持一种或多种用于选择性地挤出位置相关数据（例如在室内或类似环境中）的操作或技术 例如，用于或与移动通信设备一起使用。

公开(公告)号：US20150237509A1

公开(公告)日：2015-08-20

申请号：US14181395

申请日：2014-02-14

Applicant: QUALCOMM Incorporated

Inventor： Hui CHAO ,  Yin Chen ,  Nima Noorshams ,  Ravi Palanki

IPC: H04W16/20 ,  H04W24/10 ,  H04W4/04 ,  H04W4/00

CPC classification number: H04W16/20 ,  G01C21/206 ,  G01S5/0252 ,  H04W4/024 ,  H04W4/33 ,  H04W4/38 ,  H04W4/70 ,  H04W24/10

Abstract: Systems, apparatus and methods for deriving a heatmap in a server are presented. A heatmap is formed from sensor measurements and/or wireless signal strength measurements that have been grouped. Sensor measurements are paired or group into complementary sets thereby reducing sensor bias and/or system bias that is otherwise included because of sensor drift and unbalanced directional travel. Similarly, wireless signal strength measurements are paired or group into complementary sets also reducing system bias.

Abstract translation: 提出了一种用于在服务器中导出热图的系统，装置和方法。 热分布图由已分组的传感器测量和/或无线信号强度测量形成。 传感器测量配对或分组为互补组，从而降低传感器偏差和/或系统偏差，否则由于传感器漂移和不平衡定向行驶而导致的偏差。 类似地，无线信号强度测量被配对或分组成互补集，还降低系统偏差。

公开(公告)号：US20150208429A1

公开(公告)日：2015-07-23

申请号：US14673738

申请日：2015-03-30

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Alexei Gorokhov

IPC: H04W72/08 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W72/082 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/10 ,  H04L27/2647 ,  H04L27/30 ,  H04W52/243 ,  H04W52/245 ,  H04W52/281 ,  H04W52/32 ,  H04W72/0426

Abstract: Techniques for sending signaling messages in a wireless communication network are described. In an aspect, a signaling message (e.g., a reduce interference request) may be sent by mapping it to at least one specific subcarrier among a set of subcarriers reserved for sending the signaling message. The at least one subcarrier may be selected based on the message value. A signal may be sent on the at least one subcarrier in multiple symbol periods to convey the signaling message. In another aspect, a reduce interference request may be sent based on an orthogonal resource among orthogonal resources available for sending reduce interference requests. In one design, an orthogonal sequence may be selected based on the request and may be spread across a resource segment. In another design, the reduce interference request may be processed to obtain modulation symbols, and each modulation symbol may be spread across multiple subcarriers in one symbol period.

Abstract translation: 描述了在无线通信网络中发送信令消息的技术。 在一方面，信令消息（例如，减少干扰请求）可以通过将信令消息映射到保留用于发送信令消息的一组子载波中的至少一个特定子载波来发送。 可以基于消息值来选择至少一个子载波。 可以在多个符号周期中的至少一个子载波上发送信号以传送信令消息。 在另一方面，可以基于可用于发送减少干扰请求的正交资源之间的正交资源来发送减少干扰请求。 在一种设计中，可以基于该请求来选择正交序列，并且可以跨越资源段进行扩展。 在另一种设计中，可以处理减少干扰请求以获得调制符号，并且每个调制符号可以在一个符号周期内跨多个子载波进行扩展。

公开(公告)号：US09084240B2

公开(公告)日：2015-07-14

申请号：US14328996

申请日：2014-07-11

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Dung Ngoc Doan ,  Ravi Palanki ,  Naga Bhushan

IPC: H04W72/04 ,  H04W76/02 ,  H04W84/18

CPC classification number: H04W72/04 ,  H04W76/14 ,  H04W84/18

Abstract: Techniques for supporting peer-to-peer (P2P) communication and wide area network (WAN) communication are disclosed. In one aspect, a method operable by a network entity to facilitate peer-to-peer (P2P) communication in a wireless network includes designating a first group of subframes in a wide area network (WAN) uplink (UL) spectrum for WAN communication. The method includes designating a second group of subframes in the WAN UL spectrum for P2P communication. The method further includes allowing P2P mobile entities to use WAN physical layer channels in the second group of subframes to communicate P2P control information and P2P data.

Abstract translation: 公开了用于支持对等（P2P）通信和广域网（WAN）通信的技术。 一方面，由网络实体可操作以促进无线网络中的对等（P2P）通信的方法包括在广域网通信的广域网（WAN）上行链路（UL）频谱中指定第一组子帧。 该方法包括在用于P2P通信的WAN UL频谱中指定第二组子帧。 该方法还包括允许P2P移动实体在第二组子帧中使用WAN物理层信道来传送P2P控制信息和P2P数据。