公开(公告)号：US20150005016A1

公开(公告)日：2015-01-01

申请号：US13928107

申请日：2013-06-26

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki

IPC: H04W4/02

CPC classification number: H04W64/00 ,  G01S5/0205 ,  G01S5/0278 ,  G01S5/14 ,  H04W4/027

Abstract: Systems, apparatus and methods disclosed herein utilize motion detection to estimate variability of positioning related metrics. In some embodiments, a method may comprise obtaining the speeds of a plurality of mobile stations in a set of mobile stations connected to an AP in a wireless network. The frequency of Round Trip Time (RTT) measurements between a mobile station in the plurality of mobile stations and the AP is increased during periods when the speed of the mobile station does not exceed a threshold. An estimate of variability may be obtained for RTT measurements for the AP.

Abstract translation: 本文公开的系统，装置和方法利用运动检测来估计定位相关度量的变异性。 在一些实施例中，一种方法可以包括获得在无线网络中连接到AP的一组移动站中的多个移动台的速度。 在移动站的速度不超过阈值的时段期间，在多个移动站中的移动站与AP之间的往返时间（RTT）测量的频率增加。 对于AP的RTT测量可以获得可变性的估计。

公开(公告)号：US20140328314A1

公开(公告)日：2014-11-06

申请号：US14331780

申请日：2014-07-15

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Andrei Dragos Radulescu

IPC: H04W72/04 ,  H04W52/04

CPC classification number: H04W72/0473 ,  H04B17/336 ,  H04B17/345 ,  H04W52/04 ,  H04W52/16 ,  H04W52/241 ,  H04W52/243

Abstract: Techniques for transmitting power decision pilots are described. A transmitter (e.g., a base station or a UE) may transmit a power decision pilot to indicate a transmit power level that it will use on subsequent time-frequency resources. In one design, the transmitter may determine a set of time-frequency resources to use for transmitting the power decision pilot, determine the transmit power level for the power decision pilot based on the transmit power level to use for data transmission, and transmit the power decision pilot on the set of time-frequency resources to indicate the transmit power level to use for data transmission on the subsequent time-frequency resources. A receiver (e.g., a UE or a base station) may receive power decision pilots from a set of transmitters and may estimate channel quality that the receiver can expect on the subsequent time-frequency resources based on the power decision pilots.

Abstract translation: 描述用于发送功率决策导频的技术。 发射机（例如，基站或UE）可以发射功率决策导频以指示它将在随后的时间 - 频率资源上使用的发射功率电平。 在一种设计中，发射机可以确定用于发射功率决策导频的一组时间 - 频率资源，基于用于数据传输的发射功率电平确定功率决定导频的发射功率电平，并发射功率 决定导频关于时间 - 频率资源的集合，以指示在随后的时间 - 频率资源上用于数据传输的发射功率电平。 接收机（例如，UE或基站）可以从一组发射机接收功率决策导频，并且可以基于功率决策导频来估计接收机对后续时间 - 频率资源的信道质量。

公开(公告)号：US20140323161A1

公开(公告)日：2014-10-30

申请号：US14327430

申请日：2014-07-09

Applicant: QUALCOMM Incorporated

Inventor： Vinay Sridhara ,  Saumitra Mohan Das ,  Ayman Fawzy Naguib ,  Ravi Palanki

IPC: G01S5/02 ,  H04W64/00

CPC classification number: G01S5/0289 ,  G01S5/14 ,  G01S13/876 ,  H04W64/00

Abstract: Various methods, apparatuses and/or articles of manufacture are provided which may be implemented to support mobile device positioning through the use of adaptive passive scanning and/or adaptive active probing techniques. For example, a mobile device may acquire signals from wireless transceivers, identify wireless transceivers based, at least in part, on the acquired signal(s), determine a received signal strength measurement for each of the wireless transceivers based, at least in part, on the acquired signal(s), and determine a transmission power of a probe signal to be transmitted to at least one of the wireless transceivers based, at least in part, on at least one of the received signal strength measurements.

Abstract translation: 提供各种方法，装置和/或制品，其可以被实现以通过使用自适应被动扫描和/或自适应主动探测技术来支持移动设备定位。 例如，移动设备可以至少部分地基于所获取的信号从无线收发器获取信号，识别无线收发器，至少部分地基于无线收发器确定每个无线收发器的接收信号强度测量， 并且至少部分地基于所接收的信号强度测量中的至少一个来确定要发送到至少一个无线收发器的探测信号的发射功率。

公开(公告)号：US20140140239A1

公开(公告)日：2014-05-22

申请号：US14165498

申请日：2014-01-27

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Peter Gaal ,  Parag A. Agashe ,  Rajat Prakash ,  Masato Kitazoe

IPC: H04W24/08

CPC classification number: H04W24/08 ,  H04L1/1887 ,  H04L5/0053 ,  H04L5/0094 ,  H04L5/14 ,  H04W24/10

Abstract: Measurements are conducted on one or more carriers in a case where an access terminal supports reception on multiple carriers. Upon determining that an access terminal is capable of concurrently receiving on a given set of carriers, a measurement is conducted on one or more carriers of the set while receiving on or more other carriers of the set. Conversely, upon determining that an access terminal is not capable of concurrently receiving on a given set of carriers, a measurement is conducted on one or more carriers of the set while not receiving on or more other carriers of the set. In addition, data transfers to or from an access terminal on a carrier may be restricted (e.g., data transfers not scheduled or only low priority data transfers scheduled) during one or more subframes before or after the access terminal conducts a measurement on another carrier.

Abstract translation: 在接入终端支持在多个载波上接收的情况下，对一个或多个载波进行测量。 在确定接入终端能够在给定的一组载波上同时接收时，对该组的一个或多个载波进行测量，同时在该组的多个其它载波上接收。 相反，在确定接入终端不能在给定的一组载波上同时接收时，对该组的一个或多个载波进行测量，而不接收该组的多个其它载波。 此外，在接入终端在另一个载波上进行测量之前或之后的一个或多个子帧期间，可能会限制（或者从载波上的接入终端）到数据传输或从载波上的接入终端的数据传输（例如，未调度的数据传输或仅调度低优先级数据传输）。

公开(公告)号：US08583146B2

公开(公告)日：2013-11-12

申请号：US13720762

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 expected measurement values of a parameter; receiving parameters of a matrix corresponding to the expected measurement map; capturing actual measurement values of the parameter for a plurality of communication devices; and utilizing the received parameters and actual measurement values to estimate a position of the mobile terminal, where the expected measurement map includes, for each of a plurality of hypothesis locations (Loc(i,j)), a set of expected measurement values ({right arrow over (μ)}Loc(i,j)) containing expected measurements for the parameter, each of the expected measurements corresponding to a respective communication device of the plurality of communication devices.

Abstract translation: 移动终端中用于估计移动终端的位置的方法包括：接收指示参数的预期测量值的预期测量图; 接收与预期测量图对应的矩阵的参数; 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值来估计对于多个假设位置（Loc（i，j））中的每一个的期望测量图包括的预期测量值的集合（{ 包含对于参数的期望测量的（mu）} Loc（i），（i，j）），每个预期测量对应于多个通信设备中的相应通信设备。

公开(公告)号：US20130250855A1

公开(公告)日：2013-09-26

申请号：US13888320

申请日：2013-05-06

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Ravi Palanki

IPC: H04J3/02

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.

公开(公告)号：US11172373B2

公开(公告)日：2021-11-09

申请号：US16866275

申请日：2020-05-04

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Avneesh Agrawal ,  Naga Bhushan

IPC: H04W16/14 ,  H04W76/14 ,  H04W24/02 ,  H04W28/16 ,  H04W76/10 ,  H04W76/25 ,  H04W48/08 ,  H04W84/04 ,  H04W88/04 ,  H04W92/18

Abstract: Techniques for centralized control of peer-to-peer (P2P) communication and centralized control of femto cell operation are described. For centralized control of P2P communication, a designated network entity (e.g., a base station) may control P2P communication of stations (e.g., UEs) located within its coverage area. The designated network entity may identify a UE located within coverage of a femto cell but unable to access the femto cell due to restricted association. The designated network entity may deactivate the femto cell to allow the UE to communicate with another cell.

公开(公告)号：US10564178B2

公开(公告)日：2020-02-18

申请号：US14044775

申请日：2013-10-02

Applicant: QUALCOMM Incorporated

Inventor： Sameera Poduri ,  Disha Ahuja ,  Victor Kulik ,  Payam Pakzad ,  Ravi Palanki

IPC: G01P21/00 ,  G01C22/00

Abstract: Step detection accuracy in mobile devices is increased by determining whether swinging is taking place. According to the invention, swinging can be detected using threshold detection, Eigen analysis, hybrid frequency analysis, and/or gyroscope-based analysis, for example. The determination that swinging is (or may be) occurring can impact how the mobile device reports detected steps for step detection. A count of missteps and/or a level of certainty, based on swing detection, can be provided with a step count.

公开(公告)号：US10015789B2

公开(公告)日：2018-07-03

申请号：US14835083

申请日：2015-08-25

Applicant: QUALCOMM Incorporated

Inventor： Aamod D. Khandekar ,  Ravi Palanki ,  Peter Gaal ,  Tingfang Ji ,  Naga Bhushan ,  Juan Montojo

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/14 ,  H04L5/16 ,  H04W72/08 ,  H04L5/00

CPC classification number: H04W72/0446 ,  H04L1/0001 ,  H04L1/0026 ,  H04L1/0027 ,  H04L5/0007 ,  H04L5/1469 ,  H04L5/16 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/082

Abstract: Techniques for supporting communication in an asynchronous TDD wireless network are described. In an aspect, downlink transmissions and uplink transmissions may be sent on different carriers in an asynchronous TDD wireless network to mitigate interference. In one design, a station (e.g., a base station or a UE) may send a first transmission on a first carrier in a first time period and may receive a second transmission on a second carrier in a second time period. The station may only transmit, or only receive, or neither in each time period. In one design, allocation of carriers for the downlink and uplink may be performed when strong interference is detected, e.g., by a base station or a UE. When strong interference is not detected, the first and second carriers may each be used for both the downlink and uplink.

公开(公告)号：US09986529B2

公开(公告)日：2018-05-29

申请号：US14078319

申请日：2013-11-12

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Faraz Mohammad Mirzaei ,  Saumitra Mohan Das

IPC: G01C25/00 ,  G01C5/06 ,  H04W64/00 ,  G01S5/02 ,  G01C21/20 ,  H04W4/02

CPC classification number: H04W64/006 ,  G01C5/06 ,  G01C21/206 ,  G01C25/00 ,  G01S5/0257 ,  G01S5/0263 ,  H04W4/025

Abstract: Various methods, apparatuses and articles of manufacture are provided which may be used in determining an altitude of a mobile device. For example, an electronic device may select a subset of reporting mobile devices located within a particular environment, estimate a reference parameter that is indicative, at least in part, of a reference altitude within the particular region, e.g., based, at least in part, on one or more altitude measurements for one or more of the reporting mobile devices, and initiate transmission of the reference parameter to at least a target mobile device. In another example, a mobile device may obtain such a reference parameter, and estimate its altitude based, at least in part, on the reference parameter.