公开(公告)号：JP2013051698A

公开(公告)日：2013-03-14

申请号：JP2012221234

申请日：2012-10-03

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： PALANKI RAVI ,  ALEXEI Y GOROKHOV ,  BHUSHAN NAGA

IPC: H04W84/10 ,  H04W16/32

CPC classification number: H04W72/082 ,  H04B7/022 ,  H04B2201/70702 ,  H04W48/08 ,  H04W72/0406

Abstract: PROBLEM TO BE SOLVED: To provide techniques for reducing interference to a non-serving base station (a femto cell) when supporting data transmission on an uplink in a wireless network.SOLUTION: A user equipment (UE) can send a data transmission to a serving base station and can send uplink control information (UCI) to a non-serving base station. The UCI includes pertinent information to allow the non-serving base station to process the data transmission from the UE. The UCI allows the non-serving base station to estimate the interference due to the data transmission from the UE and to cancel the interference at the non-serving base station. The interference cancellation can improve the received signal quality at the non-serving base station. After the interference cancellation, the non-serving base station can process a data transmission from another UE served by the base station.

Abstract translation: 要解决的问题：提供当在无线网络中的上行链路上支持数据传输时，减少对非服务基站（毫微微小区）的干扰的技术。 解决方案：用户设备（UE）可以向服务基站发送数据传输，并且可以向非服务基站发送上行链路控制信息（UCI）。 UCI包括允许非服务基站处理来自UE的数据传输的相关信息。 UCI允许非服务基站估计由于来自UE的数据传输的干扰并且消除在非服务基站处的干扰。 干扰消除可以改善非服务基站处的接收信号质量。 在干扰消除之后，非服务基站可以处理来自基站服务的另一个UE的数据传输。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012165416A

公开(公告)日：2012-08-30

申请号：JP2012071419

申请日：2012-03-27

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： PALANKI RAVI ,  JEREMY H LIN ,  KHANDEKAR AAMOD ,  ALEXEI GOROKHOV ,  AGRAWAL AVNEESH

IPC: H04L1/00 ,  H03M13/23 ,  H03M13/29

CPC classification number: H04L1/0007 ,  H04L1/0009 ,  H04L1/0021 ,  H04L1/0042 ,  H04L1/1812 ,  H04L1/1822

Abstract: PROBLEM TO BE SOLVED: To provide techniques for encoding and decoding data.SOLUTION: Multiple code rates for a forward error correction (FEC) code may be supported, and a suitable code rate may be selected based on packet size. A transmitter may obtain at least one threshold to use for code rate selection, determine a packet size to use for data transmission, and select a code rate among the multiple FEC code rates based on the packet size and the at least one threshold. Multiple FEC codes of different types (e.g., Turbo, LDPC, and convolutional codes) may be supported, and a suitable FEC code may be selected based on packet size. The transmitter may obtain at least one threshold to use for FEC code selection and may select an FEC code among the multiple FEC codes based on the packet size and the at least one threshold.

Abstract translation: 要解决的问题：提供用于对数据进行编码和解码的技术。 解决方案：可以支持用于前向纠错（FEC）码的多个码率，并且可以基于分组大小来选择合适的码率。 发射机可以获得用于码率选择的至少一个阈值，确定用于数据传输的分组大小，以及基于分组大小和至少一个阈值来选择多个FEC码率中的码率。 可以支持不同类型的多个FEC码（例如Turbo，LDPC和卷积码），并且可以基于分组大小来选择合适的FEC码。 发射机可以获得用于FEC码选择的至少一个阈值，并且可以基于分组大小和至少一个阈值来选择多个FEC码中的FEC码。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012151854A

公开(公告)日：2012-08-09

申请号：JP2012023004

申请日：2012-02-06

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： KHANDEKAR AAMOD ,  PALANKI RAVI

IPC: H04J11/00

CPC classification number: H04L5/0044 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2626 ,  H04L27/2666

Abstract: PROBLEM TO BE SOLVED: To provide techniques to flexibly support different bandwidths in a wireless communication system.SOLUTION: The system supports a configurable operating bandwidth using a fixed design bandwidth and variable guard bands. Values for various parameters such as fast Fourier transform (FFT) size, cyclic prefix length, and sample rate may be selected based on the design bandwidth. The design bandwidth may be associated with K total subcarriers. Different operating bandwidths may be supported by selecting different numbers of usable subcarriers. A transmitter and a receiver may perform processing for a transmission using the same FFT size, cyclic prefix length, and sample rate regardless of the selected operating bandwidth. The system may use different operating bandwidths and/or different parameter values for different portions of a transmission.

Abstract translation: 要解决的问题：提供在无线通信系统中灵活地支持不同带宽的技术。 解决方案：该系统使用固定的设计带宽和可变的保护带来支持可配置的工作带宽。 可以基于设计带宽来选择诸如快速傅里叶变换（FFT）大小，循环前缀长度和采样率等各种参数的值。 设计带宽可能与K个总子载波相关联。 可以通过选择不同数量的可用副载波来支持不同的工作带宽。 发射机和接收机可以使用相同的FFT大小，循环前缀长度和采样率来执行用于传输的处理，而与所选择的操作带宽无关。 系统可以对传输的不同部分使用不同的工作带宽和/或不同的参数值。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2014140172A

公开(公告)日：2014-07-31

申请号：JP2014018262

申请日：2014-02-03

Applicant: Qualcomm Inc ,  クアルコム,インコーポレイテッド

Inventor： AVNEESH AGRAWAL ,  ASHWIN SAMPATH ,  PALANKI RAVI ,  NAGA BHUSHAN ,  RAJA SEKHAL BACHU ,  AAMOD D KHANDEKAR

IPC: H04W72/04 ,  H04J11/00

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

Abstract: PROBLEM TO BE SOLVED: To provide systems and methods that facilitate providing high reuse for transmitting reference signals, such as positioning reference signals (PRS) and cell-specific reference signals (CRS), to improve audibility thereof for applications such as trilateration and/or the like.SOLUTION: 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, portions of a subframe not designated for PRS transmission can be utilized for user plane data transmission.

Abstract translation: 要解决的问题：提供有助于提供用于传输诸如定位参考信号（PRS）和小区特定参考信号（CRS）的参考信号的高重用的系统和方法，以改善其对诸如三边测量和/或 等等。解决方案：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传输的子帧的部分可以用于用户平面数据传输。

公开(公告)号：JP2013229880A

公开(公告)日：2013-11-07

申请号：JP2013112994

申请日：2013-05-29

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： KHANDEKAR AAMOD ,  ALEXEI GOROKHOV ,  BHUSHAN NAGA ,  PALANKI RAVI ,  ASHWIN SAMPATH ,  AGRAWAL AVNEESH

IPC: H04W48/08 ,  H04W36/00 ,  H04W36/14 ,  H04W36/30

CPC classification number: H04W48/08

Abstract: PROBLEM TO BE SOLVED: To facilitate management of wireless communications in a heterogeneous wireless access point (AP) environment.SOLUTION: System data of an over-the-air message can be configured to include information identifying a distinct type of transmitting base station. In some aspects, the information can include an access type of the base station and/or a sector ID for distinguishing the base station among large numbers of other base stations. According to other aspects, the information can include wireless channel resources designated for a particular type of base station, or blanked by the transmitting base station, to facilitate interference reduction on such resources. By employing aspects of wireless communication management, efficient and reliable communication can be affected in large heterogeneous AP networks.

Abstract translation: 要解决的问题：为了便于在异构无线接入点（AP）环境中的无线通信的管理。解决方案：空中消息的系统数据可以被配置为包括标识不同类型的发射基站的信息。 在一些方面，信息可以包括基站的接入类型和/或用于区分大量其他基站中的基站的扇区ID。 根据其他方面，信息可以包括为特定类型的基站指定的无线信道资源，或者由发射基站消隐，以便于对这些资源进行干扰减少。 通过采用无线通信管理的方式，可以在大型异构AP网络中影响高效可靠的通信。

公开(公告)号：JP2013225872A

公开(公告)日：2013-10-31

申请号：JP2013112997

申请日：2013-05-29

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： PALANKI RAVI ,  ALEXEI Y GOROKHOV ,  BHUSHAN NAGA

IPC: H04W28/16 ,  H04J99/00 ,  H04W16/28 ,  H04W72/12

CPC classification number: H04W36/0055 ,  H04L1/0026 ,  H04L1/1607 ,  H04L5/0035 ,  H04W36/18

Abstract: PROBLEM TO BE SOLVED: To provide systems and methods that designate a control attachment point(s) during transmission of data in a coordinated multipoint (CoMP) system.SOLUTION: The control attachment point is represented by an anchor cell to address control signaling and represent interaction of user equipment (UE) with a wireless communication system from a perspective of control (e.g., supplying/sending grants to the UE, transmitting/receiving ACKS on a downlink/uplink to the UE and control information (CQI), and the like.) The cells can further engage in backhaul transfer of information therebetween, and dynamic switching/change of an anchor point based on criteria such as control loading and channel quality can further be implemented.

Abstract translation: 要解决的问题：提供在协调多点（CoMP）系统中传输数据期间指定控制附着点的系统和方法。解决方案：控制连接点由锚小区表示以解决控制信令并表示 从控制的角度（例如，向UE提供/发送授权，在UE的下行链路/上行链路上发送/接收ACK以及控制信息（CQI）等），用户设备（UE）与无线通信系统的交互 ）。小区可以进一步参与其间的信息的回程传送，并且可以进一步实现基于诸如控制加载和信道质量的标准的动态切换/改变锚点。

公开(公告)号：JP2013146083A

公开(公告)日：2013-07-25

申请号：JP2013029079

申请日：2013-02-18

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： KAPIL BHATTAD ,  PALANKI RAVI ,  ALEXEI GOROKHOV ,  ARNAB DAS

IPC: H04W52/18

CPC classification number: H04W52/282 ,  H04B17/336 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0028 ,  H04W52/241

Abstract: PROBLEM TO BE SOLVED: To provide systems and methodologies that facilitate utilizing different power control algorithms as a function of access terminal speed.SOLUTION: Instantaneous channel quality indicator (CQI) reports can be inverted for slow moving access terminals while long-term geometry inversion (e.g., average CQI report inversion) can be utilized for quick moving access terminals. Speed of the access terminal can be estimated upon the basis of time correlation of CQI values. Further, selection of implementing instantaneous CQI inversion or long-term geometry inversion can be based upon the estimated speed of the access terminal.

Abstract translation: 要解决的问题：提供有助于利用作为接入终端速度的函数的不同功率控制算法的系统和方法。解决方案：对于慢移动接入终端，瞬时信道质量指示符（CQI）报告可以被反转，而长期几何反演 例如，平均CQI报告反转）可以用于快速移动接入终端。 可以基于CQI值的时间相关性来估计接入终端的速度。 此外，实施瞬时CQI反转或长期几何倒置的选择可以基于接入终端的估计速度。

公开(公告)号：JP2012249302A

公开(公告)日：2012-12-13

申请号：JP2012152238

申请日：2012-07-06

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： PALANKI RAVI ,  SIDDARTHA MALLIK ,  PETRU CRISTIAN BUDIANU ,  ALEXEI GOROKHOV

IPC: H04B1/707 ,  H04J1/00 ,  H04J11/00

CPC classification number: H04L5/0053 ,  H04L1/1692 ,  H04L5/0007

Abstract: PROBLEM TO BE SOLVED: To achieve excellent detection performance by transmitting signaling with localized spreading.SOLUTION: A transmitter (e.g., a base station) spreads multiple signaling symbols to obtain multiple sets of output symbols and further maps the multiple sets of output symbols to multiple time frequency blocks. The spreading may be localized to each time frequency block. Prior to the spreading, the transmitter may scale the multiple signaling symbols with multiple gains determined based on the transmission power for these signaling symbols. The transmitter may scramble the scaled signaling symbols to obtain scrambled symbols and may spread the scrambled symbols to obtain the multiple sets of output symbols. The transmitter may map each set of output symbols to a respective time frequency block.

Abstract translation: 要解决的问题：通过用局部扩展发送信令来实现优异的检测性能。 解决方案：发射机（例如，基站）扩展多个信令符号以获得多组输出符号，并将多组输出符号进一步映射到多个时间频率块。 扩展可以被定位到每个时间频率块。 在扩展之前，发射机可以根据这些信令符号的发射功率确定的多个增益来缩放多个信令符号。 发射机可以加密缩放的信令符号以获得加扰符号，并且可以扩展加扰符号以获得多组输出符号。 发射机可以将每组输出符号映射到相应的时间频率块。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012239186A

公开(公告)日：2012-12-06

申请号：JP2012151285

申请日：2012-07-05

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： PALANKI RAVI ,  KHANDEKAR AAMOD ,  SUTIVONG ARAK

IPC: H04J11/00 ,  H04B1/7105 ,  H04B1/713 ,  H04B1/715 ,  H04J13/00 ,  H04L25/02

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: PROBLEM TO BE SOLVED: To provide techniques of efficiently transmitting various types of data in an SC-FDMA system.SOLUTION: In an SC-FDMA system that utilizes IFDMA or LFDMA, a transmitter generates modulation symbols for different types of data and performs CDM on at least one data type. For example, the transmitter may apply CDM to 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. CDM may be applied across symbols, samples, both samples and symbols, frequency subbands, and so on.

Abstract translation: 要解决的问题：提供在SC-FDMA系统中有效传输各种数据的技术。 解决方案：在采用IFDMA或LFDMA的SC-FDMA系统中，发射机为不同类型的数据生成调制符号，并对至少一种数据类型执行CDM。 例如，发射机可以将CDM应用于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。 为了将CDM应用于给定数据类型（例如，信令），发射机对该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。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012235485A

公开(公告)日：2012-11-29

申请号：JP2012143693

申请日：2012-06-27

Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

Inventor： ALEXEI GOROKHOV ,  PALANKI RAVI

IPC: H04J13/18 ,  H04J13/12

CPC classification number: H04L1/0041 ,  H04J13/0048 ,  H04L1/0045 ,  H04L1/0071

Abstract: PROBLEM TO BE SOLVED: To provide communication systems and methods that mitigate false alarms due to a Doppler shift.SOLUTION: Received data is mapped to orthogonal Walsh codes, interleaved and scrambled with appropriate PN sequence prior to transmission. The transmitted data is descrambled and deinterleaved upon reception. The energies associated with each of the Walsh codes from various antennas and/or signal paths are combined to obtain a total energy for each Walsh code. If the total energy of the Walsh code exceeds a certain threshold, the Walsh code is declared as the received message; if not, an erasure is indicated. As the data is interleaved prior to transmission, any phase ramp introduced due to the Doppler is transformed into random phase errors upon deinterleaving at a receiver, thereby mitigating false alarms.

Abstract translation: 要解决的问题：提供减轻由于多普勒频移导致的假警报的通信系统和方法。 解决方案：接收的数据被映射到正交沃尔什码，在传输之前用适当的PN序列交织和加扰。 发送的数据在接收时进行解扰和解交织。 与来自各种天线和/或信号路径的每个沃尔什码相关联的能量被组合以获得每个沃尔什码的总能量。 如果沃尔什码的总能量超过一定阈值，则将沃尔什码声明为接收到的消息; 如果没有，则指示擦除。 随着数据在传输之前被交错，由于多普勒引入的任何相位斜坡在接收机上进行解交织时被转换成随机相位误差，从而减轻了误报。 版权所有（C）2013，JPO＆INPIT