公开(公告)号：US09967729B2

公开(公告)日：2018-05-08

申请号：US15264236

申请日：2016-09-13

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Siddhartha Mallik ,  Ravi Palanki ,  Naga Bhushan ,  Tao Luo ,  Durga Prasad Malladi

IPC: H04W8/00 ,  H04L5/00 ,  H04W56/00 ,  H04L29/08 ,  H04W4/02 ,  H04W72/04 ,  H04W72/00 ,  H04W92/18

CPC classification number: H04W8/005 ,  H04L5/0053 ,  H04L67/104 ,  H04W4/02 ,  H04W56/002 ,  H04W56/0025 ,  H04W72/00 ,  H04W72/0453 ,  H04W76/10 ,  H04W92/18

Abstract: Techniques for performing peer discovery to enable peer-to-peer (P2P) communication are disclosed. In an aspect, a proximity detection signal used for peer discovery may be generated based on one or more physical channels and/or signals used in a wireless network. In one design, a user equipment (UE) may generate a proximity detection signal occupying at least one resource block based on a SC-FDMA modulation technique. In another design, the UE may generate a proximity detection signal occupying at least one resource block based on an OFDMA modulation technique. The UE may generate SC-FDMA symbols or OFDMA symbols in different manners for different physical channels. In yet another design, the UE may generate a proximity detection signal including a primary synchronization signal and a secondary synchronization signal. For all designs, the UE may transmit the proximity detection signal to indicate its presence and to enable other UEs to detect the UE.

公开(公告)号：US09949276B2

公开(公告)日：2018-04-17

申请号：US14673738

申请日：2015-03-30

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Alexei Gorokhov

IPC: H04W72/08 ,  H04L5/00 ,  H04W52/32 ,  H04W72/04 ,  H04L27/26 ,  H04W52/24 ,  H04W52/28 ,  H04L27/10 ,  H04L27/30

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.

公开(公告)号：US09774431B2

公开(公告)日：2017-09-26

申请号：US14658915

申请日：2015-03-16

Applicant: QUALCOMM Incorporated

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

IPC: H04H20/71 ,  H04L5/00 ,  H04W72/12 ,  H04L1/18 ,  H04W72/00

CPC classification number: H04L5/005 ,  H04L1/1893 ,  H04L5/0048 ,  H04L5/0082 ,  H04W72/005 ,  H04W72/1247

Abstract: Systems and methodologies are described that facilitate providing high reuse for transmitting reference signals, such as positioning reference signals (PRS) and cell-specific reference signals (CRS), to improve hearability thereof for applications such as trilateration and/or the like. In particular, PRSs can be transmitted in designated or selected positioning subframes. Resource elements within the positioning subframe can be selected for transmitting the PRSs and can avoid conflict with designated control regions, resource elements used for transmitting cell-specific reference signals, and/or the like. Resource elements for transmitting PRSs can be selected according to a planned or pseudo-random reuse scheme. In addition, a transmit diversity scheme can be applied to the PRSs to minimize impact of introducing the PRSs to legacy devices. Moreover, potions of a subframe not designated for PRS transmission can be utilized for user plane data transmission.

公开(公告)号：US09693339B2

公开(公告)日：2017-06-27

申请号：US14483001

申请日：2014-09-10

Applicant: Qualcomm Incorporated

Inventor： Ravi Palanki ,  Aamod Dinkar Khandekar ,  Arak Sutivong

IPC: H04W72/04 ,  H04B1/692 ,  H04J11/00 ,  H04L5/00 ,  H04L25/03 ,  H04J1/00 ,  H04J13/10 ,  H04L25/02 ,  H04L27/26

CPC classification number: H04W72/0406 ,  H04B1/692 ,  H04J1/00 ,  H04J11/00 ,  H04J13/10 ,  H04L5/0021 ,  H04L5/0026 ,  H04L5/0037 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/0228 ,  H04L25/0242 ,  H04L25/03866 ,  H04L27/2613 ,  H04L27/2615 ,  H04L27/2636 ,  H04L27/2643

Abstract: In a single-carrier frequency division multiple access (SC-FDMA) system that utilizes interleaved FDMA (IFDMA) or localized FDMA (LFDMA), a transmitter generates modulation symbols for different types of data (e.g., traffic data, signaling, and pilot) and performs code division multiplexing (CDM) on at least one data type. For example, the transmitter may apply CDM on signaling and/or pilot sent on frequency subbands and symbol periods that are also used by at least one other transmitter. To apply CDM to a given data type (e.g., signaling), the transmitter performs spreading on the modulation symbols for that data type with an assigned spreading code. CDM may be applied across symbols, samples, samples and symbols, frequency subbands, and so on. The transmitter may perform scrambling after the spreading. The transmitter generates SC-FDMA symbols of the same or different symbol durations for traffic data, signaling, and pilot and transmits the SC-FDMA symbols.

公开(公告)号：US09664773B2

公开(公告)日：2017-05-30

申请号：US14067847

申请日：2013-10-30

Applicant: QUALCOMM Incorporated

Inventor： Shrinivas S. Kudekar ,  Cyril Measson ,  Ravi Palanki ,  Thomas Joseph Richardson

IPC: G01S5/02 ,  H04W64/00 ,  H04W4/04

CPC classification number: G01S5/0252 ,  G01S5/0236 ,  G01S5/0278 ,  H04W4/043 ,  H04W64/00

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 utilizing a mobile communication device to learn parameters of a radio heat map for use in or with a mobile communication device.

公开(公告)号：US09648576B2

公开(公告)日：2017-05-09

申请号：US14506886

申请日：2014-10-06

Applicant: QUALCOMM Incorporated

Inventor： Peter Gaal ,  Ravi Palanki ,  Tingfang Ji

IPC: H04W56/00

CPC classification number: H04W56/0045 ,  H04W56/0005

Abstract: Techniques for adjusting transmit timing of base stations and user equipments (UEs) in a wireless network are described. In one operating scenario, a femto base station communicates with a femto UE, and a macro base station communicates with a macro UE located within the coverage of the femto base station. In an aspect, the transmit timing of the femto base station may be delayed relative to the transmit timing of the macro base station, e.g., to time align downlink signals from the femto and macro base stations at the femto and macro UEs. In another aspect, the transmit timing of the femto UE may be advanced relative to the transmit timing of femto base station by an amount larger than twice the propagation delay between the femto UE and the femto base station, e.g., to time align uplink signals from the femto and macro UEs at the femto base station.

公开(公告)号：US09521646B2

公开(公告)日：2016-12-13

申请号：US14940086

申请日：2015-11-12

Applicant: QUALCOMM INCORPORATED

Inventor： Tingfang Ji ,  Ravi Palanki ,  Peter Gaal ,  Hao Xu ,  Yongbin Wei

IPC: H04L5/00 ,  H04W24/02 ,  H04W64/00 ,  H04W72/04 ,  G01S5/02 ,  H04W88/08 ,  G01S1/20

CPC classification number: H04W64/00 ,  G01S1/20 ,  G01S5/02 ,  H04L5/0048 ,  H04W24/02 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/0446 ,  H04W88/085

Abstract: A method of wireless communication includes generating a unique position reference signal (PRS) for a remote radio head having a same physical cell identity (PCI) as a macro eNodeB. The unique PRS is based on a virtual cell ID and/or unique cell global identification (CGI) of the remote radio head such that the unique PRS is different from a PRS of the macro eNodeB. The PRS of the macro eNodeB is based on the PCI. The method also includes transmitting the unique PRS.

Abstract translation: 无线通信的方法包括为具有与宏eNodeB相同的物理小区标识（PCI）的远程无线电头产生唯一位置参考信号（PRS）。 独特的PRS基于远程无线电头的虚拟小区ID和/或唯一小区全局标识（CGI），使得唯一的PRS不同于宏eNodeB的PRS。 宏eNodeB的PRS基于PCI。 该方法还包括发送唯一的PRS。

公开(公告)号：US20160360545A1

公开(公告)日：2016-12-08

申请号：US15238373

申请日：2016-08-16

Applicant: QUALCOMM Incorporated

Inventor： Aamod Dinkar Khandekar ,  Ravi Palanki ,  Alexei Yurievitch Gorokhov

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04L5/14 ,  H04W52/14 ,  H04L25/02 ,  H04B7/14 ,  H04B7/06

CPC classification number: H04W72/121 ,  H04B7/0632 ,  H04B7/14 ,  H04B7/2606 ,  H04L5/005 ,  H04L5/14 ,  H04L25/0202 ,  H04W52/146 ,  H04W72/0433 ,  H04W72/0466 ,  H04W72/1289 ,  H04W84/047

Abstract: Providing for improved implementation of supplemental wireless nodes in a wireless base station deployment is described herein. By way of example, a donor base station is configured to send a schedule of data transmission to and from a set of UEs served by the base station, and further can provide the schedule and identifiers for the set of UEs to one or more wireless nodes serving the base station. Respective access channel measurements between respective UEs and respective wireless nodes can be forwarded to the base station, which in turn can identify optimal access channels for the set of UEs. Additionally, the donor base station can schedule multiple data transmissions on these access channels in a common transmission time slot, to achieve cell-splitting gains for the data transmissions. Range boosting, differential coding, and supplemental channel quality mechanisms are also provided for various wireless communication arrangements described herein.

Abstract translation: 本文描述了在无线基站部署中提供补充无线节点的改进实现。 作为示例，施主基站被配置为向基站服务的一组UE发送数据传输和从一组UE发送调度表，并且还可以向一组或多个无线节点提供该组UE的调度和标识符 为基站服务。 各个UE和各个无线节点之间的相应的接入信道测量可以被转发到基站，基站又可以识别该组UE的最佳接入信道。 此外，施主基站可以在公共传输时隙中在这些接入信道上调度多个数据传输，以实现数据传输的小区分解增益。 还提供了范围增强，差分编码和补充信道质量机制用于本文描述的各种无线通信布置。

公开(公告)号：US09451413B1

公开(公告)日：2016-09-20

申请号：US14712803

申请日：2015-05-14

Applicant: QUALCOMM Incorporated

Inventor： Hui Chao ,  Saumitra Mohan Das ,  Ravi Palanki

IPC: H04W24/00 ,  H04W4/04

CPC classification number: H04W4/04 ,  H04W4/021

Abstract: Providing assistance data to a mobile device may include receiving from the mobile device one or more messages indicative of its condition. According to an implementation a heatmap is generated based, at least in part, on the condition of the mobile device. The heatmap includes a plurality of expected signature values of wireless signals mapped along a plurality of path segments corresponding to navigable spaces of a floor plan of a venue. The heatmap excludes expected signature values at locations in the venue other than the plurality of path segments. The heatmap is transmitted to the mobile device.

Abstract translation: 向移动设备提供辅助数据可以包括从移动设备接收指示其状况的一个或多个消息。 根据实施方案，至少部分地基于移动设备的状况生成热图。 热图包括沿着对应于场地的平面图的可导航空间的多个路径段映射的无线信号的多个预期签名值。 热图不包括除了多个路段之外的场地中的预期签名值。 热图映射到移动设备。

公开(公告)号：US20160261978A9

公开(公告)日：2016-09-08

申请号：US14268875

申请日：2014-05-02

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Nathan Edward Tenny ,  Parag Arun Agashe

IPC: H04W4/02

CPC classification number: H04W4/02 ,  H04W64/003

Abstract: Methods and apparatuses are provided that facilitate allowing position determination of devices in wireless networks with home evolved Node Bs (HeNB). An HeNB can determine its location based at least in part on positioning measurements from one or more devices. The HeNB can additionally or alternatively register its location or other location parameters with a positioning server for subsequent provisioning as assistance information for determining a device position. Moreover, a device can request assistance information related to a different base station where the HeNB is not registered with the positioning server.

Abstract translation: 提供了方便和装置，其便于允许使用家庭演进的节点B（HeNB）的无线网络中的设备的位置确定。 HeNB可以至少部分地基于来自一个或多个设备的定位测量来确定其位置。 HeNB可以附加地或替代地将它的位置或其他位置参数用定位服务器注册用于随后的供应作为用于确定设备位置的辅助信息。 此外，设备可以请求与HeNB未向定位服务器注册的不同基站相关的辅助信息。