公开(公告)号：US10291349B2

公开(公告)日：2019-05-14

申请号：US15172707

申请日：2016-06-03

Applicant: QUALCOMM Incorporated

Inventor： Aamod Khandekar ,  Avneesh Agrawal

IPC: H04L1/00 ,  H04L1/18 ,  H04L1/16

Abstract: Techniques for using multiple modulation schemes for a single packet are described. Each data packet is processed and transmitted in up to T blocks, where T>1. Multiple modulation schemes are used for the T blocks to achieve good performance. A transmitter encodes a data packet to generate code bits. The transmitter then forms a block of code bits with the code bits generated for the packet, determines the modulation scheme to use for the block (e.g., based on a mode/rate selected for the packet), maps the code bits for the block based on the modulation scheme to obtain data symbols, and processes and transmits the block of data symbols to a receiver. The transmitter generates and transmits another block in similar manner until the data packet is decoded correctly or all T blocks have been transmitted. The receiver performs the complementary processing to receive and decode the packet.

公开(公告)号：US20170163433A1

公开(公告)日：2017-06-08

申请号：US15439864

申请日：2017-02-22

Applicant: QUALCOMM Incorporated

Inventor： Tao LUO ,  Yongbin WEI ,  Peter GAAL ,  Hao XU ,  Taesang YOO ,  Siddhartha MALLIK ,  Makesh Pravin JOHN WILSON ,  Naga BHUSHAN ,  Durga Prasad MALLADI ,  Tingfang JI ,  Gavin Bernard HORN ,  Alexei Y. Gorokhov ,  Avneesh Agrawal

IPC: H04L12/18 ,  H04W72/08 ,  H04B7/0452 ,  H04B7/06 ,  H04W16/14 ,  H04L5/00

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE that acquires information regarding an interfering non-serving cell and uses the information to improve decoding of serving cell signals. The method includes receiving, from a serving evolved Node B (eNB), information that includes one or more transmission characteristics of at least one non-serving cell and performing at least one of interference cancellation, demodulation, or provides an improved channel quality indicator (CQI) based on the received information.

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：US20150105092A1

公开(公告)日：2015-04-16

申请号：US14576607

申请日：2014-12-19

Applicant: QUALCOMM Incorporated

Inventor： Peter Gaal ,  Avneesh Agrawal

IPC: H04W72/08

CPC classification number: H04W72/082 ,  H04W72/0413 ,  H04W88/06 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/166 ,  Y02D70/168

Abstract: Systems and methodologies are described that facilitate avoiding interference with disparate communication technologies when allocating and/or utilizing wireless communication resources. Access points can generate resource assignments for mobile devices based at least in part on resources utilized by the disparate communication technology devices, such as to avoid such resources, allocate narrow bands over such resources, avoid or limit allocations in a measurement gap during which disparate communication technology devices communicate, and/or the like to mitigate interference over the resources. Mobile devices can provide such information to the access point, such as a communication technology to avoid interfering, resources utilized by devices of the communication technology, etc. This information can be acquired by receiving signals from the devices, detecting presence of the devices, and/or the like. In addition, mobile device can reduce transmission power over resources used by the disparate communication technology.

Abstract translation: 描述了在分配和/或利用无线通信资源时便于避免对不同通信技术的干扰的系统和方法。 接入点可以至少部分地基于不同通信技术设备使用的资源来生成移动设备的资源分配，例如避免这样的资源，在这些资源上分配窄带，避免或限制在不同通信期间的测量间隙中的分配 技术设备进行通信和/或类似以减轻对资源的干扰。 移动设备可以向接入点提供这样的信息，例如通信技术，以避免干扰，通信技术的设备利用的资源等。该信息可以通过从设备接收信号，检测设备的存在和 /等等。 此外，移动设备可以减少由不同通信技术使用的资源的传输功率。

公开(公告)号：US20150071234A1

公开(公告)日：2015-03-12

申请号：US14543721

申请日：2014-11-17

Applicant: QUALCOMM Incorporated

Inventor： Edward Harrison Teague ,  Avneesh Agrawal

IPC: H04W72/08

CPC classification number: H04L1/0003 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0033 ,  H04L1/1812 ,  H04W72/085

Abstract: Methods and apparatus for transmitting modulation parameters are disclosed. The apparatus and methods provide determination of when a particular modulation scheme is used by an access point. One or more modulation parameters associated with the particular modulation scheme and one or more timing values associated with the particular modulation scheme are then determined and transmitted using a portion of a broadcast channel transmitted by the access point.

Abstract translation: 公开了用于发送调制参数的方法和装置。 该装置和方法提供确定接入点何时使用特定调制方案。 然后使用由接入点发送的广播信道的一部分来确定与特定调制方案相关联的一个或多个调制参数和与特定调制方案相关联的一个或多个定时值。

公开(公告)号：US20150055611A1

公开(公告)日：2015-02-26

申请号：US14533404

申请日：2014-11-05

Applicant: QUALCOMM Incorporated

Inventor： Tingfang Ji ,  Avneesh Agrawal ,  Alexei Y. Gorokhov

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04L1/0004 ,  H04L1/001 ,  H04L1/0026 ,  H04L1/1812 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/006 ,  H04L5/0062 ,  H04L25/0224 ,  H04W52/241 ,  H04W52/243 ,  H04W52/325 ,  H04W52/343

Abstract: Techniques for mitigating pilot pollution in a wireless network are described. In an aspect, pilot pollution may be mitigated by reducing density and/or transmit power of common pilots whenever possible. A cell may send a common pilot at a first density and a first transmit power level during a first time period and may send the common pilot at a second density and a second transmit power level during a second time period. The second density may be lower than the first density and/or the second transmit power level may be lower than the first transmit power level. Lower density may be achieved by sending the common pilot less frequently, on fewer subcarriers, and/or from fewer antennas. The cell may determine whether to reduce the density and/or transmit power of the common pilot based on network loading, SINRs of terminals, etc. In another aspect, pilot pollution may be mitigated by performing pilot cancellation at a terminal.

Abstract translation: 描述了减轻无线网络中导频污染的技术。 在一方面，可能通过尽可能减少公共飞行员的密度和/或发射功率来减轻飞行员污染。 小区可以在第一时间段期间以第一密度和第一发射功率电平发送公共导频，并且可以在第二时间段期间以第二密度和第二发射功率电平发送公共导频。 第二密度可以低于第一密度，和/或第二发射功率电平可能低于第一发射功率电平。 较低的密度可以通过在较少的子载波上和/或从更少的天线较少频率地发送公共导频来实现。 小区可以基于网络负载，终端的SINR等来确定是否降低公共导频的密度和/或发射功率。另一方面，可以通过在终端执行导频消除来减轻导频污染。

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：US20140223479A1

公开(公告)日：2014-08-07

申请号：US14102342

申请日：2013-12-10

Applicant: QUALCOMM Incorporated

Inventor： Raghuraman Krishnamoorthi ,  Pankaj V. Rahate ,  Pankaj Jain ,  Devarshi P. Shah ,  Pavel A. Seliverstov ,  George A. Rothrock ,  Nilabh Khare ,  Anil K. Wadhwani ,  Jiming Guo ,  Sanjiv Nanda ,  Fuyun Ling ,  Murali R. Chari ,  Avneesh Agrawal ,  Rinat Burdo ,  Prasanna Kannan ,  Krishna K. Mukkavilli ,  Reynaldo W. Newman ,  Michael M. Fan ,  Manoj M. Deshpande ,  Ranjith S. Jayaram

IPC: H04N21/2385 ,  H04N21/482 ,  H04W4/04

CPC classification number: H04N21/2385 ,  H04L12/189 ,  H04L67/16 ,  H04L67/18 ,  H04N21/482 ,  H04W4/02 ,  H04W4/04 ,  H04W48/16 ,  H04W72/005

Abstract: A venue-cast system and method for providing and receiving venue level transmissions and services, including discovery of a venue specific transmission by receiving an overhead signal from a non-venue network, extracting information for receiving the venue specific transmission from the overhead signal, and tuning to receive the venue specific transmission based on the extracted information. The venue level transmission may be provided and received in a manner that does not prevent an access terminal from receiving a local area or wide area transmission.

Abstract translation: 一种用于提供和接收场地级传输和服务的场地播放系统和方法，包括通过从非场地网络接收开销信号来发现场地特定传输，从开销信号中提取用于接收场地特定传输的信息，以及 基于所提取的信息进行调谐以接收特定于场地的传输。 可以以不阻止接入终端接收局域或广域传输的方式提供和接收场地级传输。

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：US20130142154A1

公开(公告)日：2013-06-06

申请号：US13755285

申请日：2013-01-31

Applicant: QUALCOMM Incorporated

Inventor： Alexei Yurievitch Gorokhov ,  Jaber Mohammad Borran ,  Avneesh Agrawal ,  Naga Bhushan ,  Tamer Adel Kadous ,  Ayman Fawzy Naguib

IPC: H04W52/30

CPC classification number: H04W52/30 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0058 ,  H04W52/04 ,  H04W72/06 ,  Y02B30/50

Abstract: Systems and methodologies are described that facilitate mitigating effect of non-linear distortion from a power amplifier on a spectral mask margin. Power limit indications can be analyzed in scheduling mobile devices. Mobile devices with power limits can be scheduled on inner subbands. The power limits can be based at least in part on power amplifier headroom information. Other mobile devices can employ remaining portions of an allocated spectrum. Further, mobile devices can evaluate and establish a power amplifier backoff based upon the subband scheduling.

Abstract translation: 描述了有助于减轻来自功率放大器的非线性失真对光谱掩模余量的影响的系统和方法。 功率限制指示可以在调度移动设备中进行分析。 具有功率限制的移动设备可以在内部子带上进行调度。 功率限制可以至少部分地基于功率放大器余量信息。 其他移动设备可以使用所分配频谱的剩余部分。 此外，移动设备可以基于子带调度来评估和建立功率放大器的退避。