公开(公告)号：US20150200753A1

公开(公告)日：2015-07-16

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: H04L5/00 ,  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.

Abstract translation: 描述了有助于提供用于传输参考信号（诸如定位参考信号（PRS）和小区特定参考信号（CRS））的高重用性的系统和方法，以改善诸如三边测量等应用的可听性。 特别地，PRS可以在指定或选定的定位子帧中传输。 可以选择定位子帧内的资源元素用于发送PRS，并且可以避免与指定的控制区域的冲突，用于发送小区特定参考信号的资源元素等。 用于传输PRS的资源元素可以根据计划或伪随机重用方案来选择。 此外，发射分集方案可以应用于PRS，以最小化将PRS引入传统设备的影响。 此外，未指定用于PRS传输的子帧的药水可用于用户平面数据传输。

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：US20150139367A1

公开(公告)日：2015-05-21

申请号：US14082877

申请日：2013-11-18

Applicant: QUALCOMM Incorporated

Inventor： Farrokh ABRISHAMKAR ,  Venkata Gautham Chavali ,  Insung Kang ,  Carlos Ruben Cabrera-Mercader ,  Hari Sankar ,  Aamod Dinkar Khandekar

IPC: H04L25/02

CPC classification number: H04L25/0256 ,  H04B1/71072 ,  H04L25/0204 ,  H04L25/025

Abstract: Apparatus and methods for channel estimation include determining two streams corresponding to odd and even samples of a received signal that is sampled at a first chip rate, performing least squares successive interference cancellation on each of the two streams to obtain odd and even raw channel estimates, interlacing the odd and even raw channel estimates to obtain interlaced channel estimates, interpolating additional samples in the interlaced channel estimates to create higher chip rate channel estimates, identifying a first set of tap positions based on the higher chip rate channel estimates, applying matching pursuit to the first set of tap positions to identify a second set of tap positions, wherein the second set of tap positions includes fewer tap positions than the first set of tap positions, and determining a third set of tap positions by clustering each tap position included in the second set of tap positions.

Abstract translation: 用于信道估计的装置和方法包括确定对应于以第一码片速率采样的接收信号的奇数和偶数采样的两个流，对两个流中的每个流执行最小二乘法连续干扰消除以获得奇数和偶数原始信道估计， 将奇数和偶数原始信道估计交错以获得隔行信道估计，在隔行信道估计中内插附加采样以产生更高的码片速率信道估计，基于较高码片速率信道估计来识别第一组抽头位置，将匹配追踪应用于 所述第一抽头位置集合以识别第二组抽头位置，其中所述第二抽头位置集合包括比所述第一抽头位置集合更少的抽头位置，以及通过将包括在所述抽头位置中的每个抽头位置聚类来确定第三抽头位置集合 第二组抽头位置。

公开(公告)号：US20140098726A1

公开(公告)日：2014-04-10

申请号：US13916336

申请日：2013-06-12

Applicant: QUALCOMM Incorporated

Inventor： Insung Kang ,  Surendra Boppana ,  Aamod Dinkar Khandekar

IPC: H04W52/02

CPC classification number: H04W52/0235 ,  H04W52/545 ,  H04W52/56 ,  H04W52/58 ,  H04W52/60 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/22 ,  Y02D70/25

Abstract: A method and apparatus for controlling uplink transmit power with optimum delay is described. A transmit power control command may be received. A time slot of the transmit power control command may be determined. Based on the time slot, it may be determined to decode the transmit power control command, with a delay. The transmit power control command may be decoded, after the delay, using a transmit power control command decoding graph by determining a strength of the transmit power control command and plotting the strength on the transmit power control command decoding graph. The transmit power control command decoding graph may include regions. Decoding the transmit power control command, after the delay, may be based on a region associated with plotting the strength of the transmit power control command.

Abstract translation: 描述用于以最佳延迟来控制上行链路发射功率的方法和装置。 可以接收发射功率控制命令。 可以确定发射功率控制命令的时隙。 基于该时隙，可以确定以延迟解码发送功率控制命令。 发射功率控制命令可以在延迟之后通过确定发射功率控制命令的强度并绘制发射功率控制命令解码图上的强度来使用发射功率控制命令解码图来解码。 发射功率控制命令解码图可以包括区域。 在延迟之后对发射功率控制命令进行解码可以基于与绘制发射功率控制命令的强度相关联的区域。

公开(公告)号：US20130262961A1

公开(公告)日：2013-10-03

申请号：US13896104

申请日：2013-05-16

Applicant: Qualcomm Incorporated

Inventor： Thomas Joseph Richardson ,  Aamod Dinkar Khandekar

IPC: H03M13/13

CPC classification number: H03M13/13 ,  H03M13/1102 ,  H03M13/6306 ,  H04L1/0057 ,  H04L1/1819

Abstract: Systems and methodologies are described that facilitate transmitting low-density parity-check encoded communications in a wireless communications network and incrementing such codes in response to requests from receiving devices. The LDPC codes can have associated constraints allowing the codes to be error corrected upon receipt. The requests for incremented codes can be in cases of low transmission power or high interference, for example, where the original code can be too error-ridden to properly decode. In this case, additional nodes can be added to current and/or subsequent communications to facilitate adding a more complex constraint to the LDPC code. In this regard, the large codes can require less validly transmitted nodes to predict error-ridden values as the additional constraint renders less ambiguity in possible node value choices.

Abstract translation: 描述了有助于在无线通信网络中传送低密度奇偶校验编码通信并响应于来自接收设备的请求递增这些代码的系统和方法。 LDPC码可以具有相关联的约束，允许在接收时对代码进行纠错。 递增代码的请求可以是在低发送功率或高干扰的情况下，例如，其中原始代码可能太错误以便正确解码。 在这种情况下，可以将附加节点添加到当前和/或后续通信，以便于向LDPC码添加更复杂的约束。 在这方面，大代码可能需要较少有效传输的节点来预测误差值，因为附加约束使可能的节点值选择中的歧义更少。

公开(公告)号：US10666342B1

公开(公告)日：2020-05-26

申请号：US16400864

申请日：2019-05-01

Applicant: QUALCOMM Incorporated

Inventor： Shay Landis ,  Assaf Touboul ,  Arthur Gubeskys ,  Alexei Yurievitch Gorokhov ,  Aamod Dinkar Khandekar

IPC: H04K1/10 ,  H04L27/28 ,  H04B7/06 ,  H04B7/08 ,  G06N3/04 ,  H04B17/373 ,  G06N3/08 ,  H04B17/382

Abstract: Certain aspects of the present disclosure provide techniques for beam management using adaptive learning. Certain aspects provide a method that can be performed by a node, such as user equipment (UE) or a base station (BS). The node determines one or more beams to utilize for a beam management procedure using adaptive learning. The node performs the beam management procedure using the determined one or more beams. In some aspects, the node uses an adaptive reinforcement learning algorithm to select beams for measurement in beam discovery procedure. The node may adaptive the beam management algorithm based on feedback associated with the beam selection, such as based on a throughput achieved using a beam pairing determined during the beam management procedure.

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：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：US20140376518A1

公开(公告)日：2014-12-25

申请号：US14483001

申请日：2014-09-10

Applicant: Qualcomm Incorporated

Inventor： Ravi Palanki ,  Aamod Dinkar Khandekar ,  Arak Sutivong

IPC: H04W72/04 ,  H04J1/00 ,  H04J13/10

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.

Abstract translation: 在采用交织FDMA（IFDMA）或局部FDMA（LFDMA）的单载波频分多址（SC-FDMA）系统中，发射机为不同类型的数据（例如业务数据，信令和导频）生成调制符号， 并对至少一种数据类型进行码分复用（CDM）。 例如，发射机可以对也被至少一个其他发射机使用的频率子带和符号周期上发送的信令和/或导频上应用CDM。 为了将CDM应用于给定数据类型（例如，信令），发射机对具有分配的扩展码的数据类型的调制符号执行扩展。 CDM可以跨符号，样本，样本和符号，频率子带等应用。 发射机可以在扩频之后执行加扰。 发射机产生业务数据，信令和导频的相同或不同符号持续时间的SC-FDMA符号，并发送SC-FDMA符号。