公开(公告)号：US20150189541A1

公开(公告)日：2015-07-02

申请号：US14659150

申请日：2015-03-16

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Juan Montojo ,  Aamod Dinkar Khandekar ,  Tao Luo ,  Kapil Bhattad

IPC: H04W28/02 ,  H04W72/04 ,  H04J11/00 ,  H04W56/00

CPC classification number: H04W28/0284 ,  H04B7/0617 ,  H04J11/005 ,  H04L1/0041 ,  H04L1/0072 ,  H04L5/0007 ,  H04L5/0053 ,  H04L7/041 ,  H04L27/2613 ,  H04W56/001 ,  H04W72/0453

Abstract: Techniques for transmitting overload indicators over the air to UEs in neighbor cells are described. In one design, an overload indicator may be transmitted as a phase difference between at least one synchronization signal and a reference signal for a cell. In another design, an overload indicator may be transmitted as a phase difference between consecutive transmissions of at least one synchronization signal for a cell. In yet another design, an overload indicator may be transmitted by a cell on resources reserved for transmitting the overload indicator. In yet another design, an overload indicator may be transmitted by a cell on a low reuse channel or a broadcast channel. For all designs, a UE may receive overload indicators from neighbor cells, determine the loading of each neighbor cell based on the overload indicator for that cell, and control its operation based on the loading of the neighbor cells.

Abstract translation: 描述了在空中向相邻小区中的UE发送过载指示符的技术。 在一种设计中，过载指示符可以作为小区的至少一个同步信号和参考信号之间的相位差发送。 在另一种设计中，可以将过载指示符作为用于小区的至少一个同步信号的连续传输之间的相位差发送。 在另一种设计中，过载指示符可以由小区在保留用于发送过载指示符的资源上发送。 在另一种设计中，过载指示符可以由低重用信道或广播信道上的小区发送。 对于所有设计，UE可以从相邻小区接收过载指示符，基于该小区的过载指示符确定每个相邻小区的负载，并且基于相邻小区的加载来控制其操作。

公开(公告)号：US20150055613A1

公开(公告)日：2015-02-26

申请号：US14533919

申请日：2014-11-05

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Tingfang Ji ,  Peter Gaal

IPC: H04L5/00

CPC classification number: H04L5/0073 ,  H04W52/143 ,  H04W52/244

Abstract: Apparatus and methods for interference mitigation in wireless communication networks are described. In one implementation, at a node in a first network, a power level and/or bandwidth or channelization of an adjacent channel signal may be determined, and a power level and/or bandwidth of a transmitted signal in the first network may be adjusted in response.

Abstract translation: 描述了用于无线通信网络中的干扰减轻的装置和方法。 在一个实现中，在第一网络中的节点处，可以确定相邻信道信号的功率电平和/或带宽或信道化，并且可以在第一网络中的发射信号的功率电平和/或带宽 响应。

公开(公告)号：US08964885B2

公开(公告)日：2015-02-24

申请号：US13784629

申请日：2013-03-04

Applicant: QUALCOMM Incorporated

Inventor： Michael M. Wang ,  Ravi Palanki

IPC: H04L27/00 ,  H04W64/00 ,  H04L5/00 ,  H04W24/00 ,  H04W8/26

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 portion of one or more data symbols that are not currently being utilized for transmission of data. 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.

公开(公告)号：US20140334415A1

公开(公告)日：2014-11-13

申请号：US14341107

申请日：2014-07-25

Applicant: QUALCOMM Incorporated

Inventor： Mohammad J. Borran ,  Aamod Khandekar ,  Naga Bhushan ,  Ashwin Sampath ,  Alexei Gorokhov ,  Avneesh Agrawal ,  Ravi Palanki ,  Gavin B. Horn

IPC: H04W72/04

CPC classification number: H04W72/048 ,  H04W52/242 ,  H04W52/243 ,  H04W52/28 ,  H04W52/325 ,  H04W52/34

Abstract: Techniques for transmitting data with short-term interference mitigation in a wireless communication system are described. In one design, a serving base station may send a message to a terminal to trigger short-term interference mitigation. In response, the terminal may send a message to request at least one interfering base station to reduce interference on at least one resource. Each interfering base station may determine a transmit power level to be used for the at least one resource and may send a pilot at this transmit power level. The terminal may estimate the channel quality of the at least one resource based on at least one pilot received from the at least one interfering base station. The terminal may send information indicative of the estimated channel quality to the serving base station. The serving base station may send a data transmission on the at least one resource to the terminal.

Abstract translation: 描述了在无线通信系统中发送具有短期干扰抑制的数据的技术。 在一种设计中，服务基站可以向终端发送消息以触发短期干扰减轻。 作为响应，终端可以发送消息以请求至少一个干扰基站以减少对至少一个资源的干扰。 每个干扰基站可以确定要用于至少一个资源的发射功率电平，并且可以以该发射功率电平发送导频。 终端可以基于从至少一个干扰基站接收的至少一个导频来估计至少一个资源的信道质量。 终端可以向服务基站发送表示估计的信道质量的信息。 服务基站可以向终端发送至少一个资源上的数据传输。

公开(公告)号：US20140057652A1

公开(公告)日：2014-02-27

申请号：US14070381

申请日：2013-11-01

Applicant: QUALCOMM Incorporated

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

IPC: G01S5/06

CPC classification number: G01S5/06 ,  H04W4/029 ,  H04W64/003

Abstract: Disclosed is a method for position determination, including altering or generating at least one radio heatmap value in a collection of radio heatmap values, the altering or generating based, at least in part, on a measurement of one or more characteristics of wireless signals received by a receiver at a first wireless network access point and transmitted by a transmitter at a second wireless network access point; and transmitting at least a portion of the collection of radio heatmap values including the altered or generated radio heatmap value to a mobile station as positioning assistance information.

Abstract translation: 公开了一种用于位置确定的方法，包括在无线电热图值的集合中改变或生成至少一个无线电热图值，至少部分地基于由无线电热点映射值的一个或多个特性的测量， 在第一无线网络接入点处的接收机并由发射机在第二无线网络接入点发射; 以及将包括所述改变或生成的无线电热图值的无线电热图值的集合的至少一部分传送到移动台作为定位辅助信息。

公开(公告)号：US20130265968A1

公开(公告)日：2013-10-10

申请号：US13908951

申请日：2013-06-03

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Aamod Khandekar ,  Naga Bhushan ,  Avneesh Agrawal

IPC: H04W72/04

CPC classification number: H04W72/0413 ,  H04W52/244 ,  H04W72/082 ,  Y02D70/00

Abstract: Techniques for mitigating interference on control channels in a wireless communication network are described. In an aspect, high interference on radio resources used for a control channel may be mitigated by sending a request to reduce interference to one or more interfering stations. Each interfering station may reduce its transmit power on the radio resources, which may then allow the control channel to observe less interference. In one design, a user equipment (UE) may detect high interference on radio resources used for a control channel by a desired base station. The UE may send a request to reduce interference on the radio resources to an interfering base station, which may reduce its transmit power on the radio resources. The UE may receive the control channel on the radio resources from the desired base station and may observe less interference from the interfering base station.

公开(公告)号：US20130182784A1

公开(公告)日：2013-07-18

申请号：US13784651

申请日：2013-03-04

Applicant: QUALCOMM Incorporated

Inventor： Michael M. Wang ,  Ravi Palanki

IPC: H04W8/26

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 one or more data symbols that are not currently being utilized for transmission of data. 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数据传输的一个或多个数据符号中发送。 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。

公开(公告)号：US20130182667A1

公开(公告)日：2013-07-18

申请号：US13784629

申请日：2013-03-04

Applicant: QUALCOMM Incorporated

Inventor： Michael M. Wang ,  Ravi Palanki

IPC: H04W64/00

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 portion of one or more data symbols that are not currently being utilized for transmission of data. 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。 可以在当前不用于数据传输的一个或多个数据符号的一部分中传输高度可检测的导频。 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。

公开(公告)号：US09749027B2

公开(公告)日：2017-08-29

申请号：US14205808

申请日：2014-03-12

Applicant: QUALCOMM Incorporated

Inventor： Juan Montojo ,  Ravi Palanki ,  Amir Farajidana ,  Kapil Bhattad

IPC: H04W72/00 ,  H04B7/06 ,  H04W72/12 ,  H04L5/00 ,  H04B7/08

CPC classification number: H04B7/061 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0671 ,  H04B7/0691 ,  H04B7/0874 ,  H04L5/0091 ,  H04W72/1273

Abstract: Systems and methods are disclosed that facilitate creating antenna ports to correspond to two or more groups of user equipment. The systems and methods can organize two or more groups of user equipment and signal to each of the two or more groups a respective antenna port. The systems and methods can further communicate mapping information, a reference signal, or delay related to a linear combination in order to identify antenna ports. Based on such communicated information, the reference signal can be decoded in order to identify each antenna port.

公开(公告)号：US09648596B2

公开(公告)日：2017-05-09

申请号：US13908951

申请日：2013-06-03

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Aamod Khandekar ,  Naga Bhushan ,  Avneesh Agrawal

IPC: H04W52/24 ,  H04W72/04 ,  H04W72/08

CPC classification number: H04W72/0413 ,  H04W52/244 ,  H04W72/082 ,  Y02D70/00

Abstract: Techniques for mitigating interference on control channels in a wireless communication network are described. In an aspect, high interference on radio resources used for a control channel may be mitigated by sending a request to reduce interference to one or more interfering stations. Each interfering station may reduce its transmit power on the radio resources, which may then allow the control channel to observe less interference. In one design, a user equipment (UE) may detect high interference on radio resources used for a control channel by a desired base station. The UE may send a request to reduce interference on the radio resources to an interfering base station, which may reduce its transmit power on the radio resources. The UE may receive the control channel on the radio resources from the desired base station and may observe less interference from the interfering base station.