公开(公告)号：WO2010008845A2

公开(公告)日：2010-01-21

申请号：PCT/US2009/048293

申请日：2009-06-23

Applicant: QUALCOMM INCORPORATED ,  GLAZKO, Serguei ,  BREHLER, Matthias ,  KIM, Je Woo ,  MAKHIJANI, Mahesh, A.

Inventor： GLAZKO, Serguei ,  BREHLER, Matthias ,  KIM, Je Woo ,  MAKHIJANI, Mahesh, A.

IPC: H04K1/10 ,  H04W72/00

CPC classification number: H04W72/1231 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0053 ,  H04W72/1273

Abstract: Methods and apparatus are provided for increasing throughput in a wireless communication system by reducing the amount of overhead transmitted to certain user terminals. Overhead due to control information may be reduced for these certain user terminals by selecting a low repetition factor. Overhead may be further reduced for these certain user terminals by selecting a modulation/coding scheme with a higher data rate for transmitting the control information. The selection may be based on channel conditions associated with the user terminals, such as signal-to-interference-plus-noise ratios (SINRs).

Abstract translation: 提供了通过减少传送到某些用户终端的开销量来提高无线通信系统中的吞吐量的方法和装置。 通过选择低重复因子，可能会降低这些特定用户终端由于控制信息而导致的开销。 通过选择具有较高数据速率的调制/编码方案来传送控制信息，可以进一步减少这些特定用户终端的开销。 选择可以基于与用户终端相关联的信道条件，例如信号与干扰加噪声比（SINR）。

公开(公告)号：WO2009105121A1

公开(公告)日：2009-08-27

申请号：PCT/US2008/067411

申请日：2008-06-18

Applicant: QUALCOMM INCORPORATED ,  PARK, Jong Hyeon ,  SIM, Bok Tae ,  KIM, Je Woo

Inventor： PARK, Jong Hyeon ,  SIM, Bok Tae ,  KIM, Je Woo

IPC: H04B7/08

CPC classification number: H04B7/0857 ,  H04B7/0845 ,  H04L1/04 ,  H04L1/08

Abstract: In accordance with a method for diversity combining in an orthogonal frequency division multiple access (OFDMA) system, repetition diversity equalization and combining may be performed with respect to received OFDMA signals. In addition, receiver antenna diversity equalization and combining may be performed with respect to the received OFDMA signals. The repetition diversity equalization and combining and the receiver antenna diversity equalization and combining may be performed in accordance with a maximum ratio combining (MRC) scheme.

Abstract translation: 根据正交频分多址（OFDMA）系统中的分集组合的方法，可以针对所接收的OFDMA信号执行重复分集均衡和组合。 此外，可以相对于所接收的OFDMA信号执行接收机天线分集均衡和组合。 可以根据最大比组合（MRC）方案来执行重复分集均衡和组合以及接收机天线分集均衡和组合。

公开(公告)号：WO2015164040A1

公开(公告)日：2015-10-29

申请号：PCT/US2015/024082

申请日：2015-04-02

Applicant: QUALCOMM INCORPORATED

Inventor： SHAH, Sagar Bharatkumar ,  CHEN, Chulong ,  CHIZGI, Nate ,  KIM, Je Woo ,  MATIN, Sharif Ahsanul ,  SHARMA, Rajat

IPC: H04W48/20

CPC classification number: H04W48/20 ,  H04W48/16

Abstract: Methods and apparatus are described for performing cell selection for reducing an initial acquisition time between a user equipment (UE) and a network entity, comprising measuring a signal from a cell, the signal including at least one system information block (SIB), wherein the at least one SIB includes a plurality of cell selection threshold values; attempting to decode the at least one SIB; determining, in response to successfully decoding the at least one SIB, whether one or more measurements of the signal pass or fail a cell selection criteria check that includes the plurality of cell selection threshold values; determining, in response to the cell selection criteria check failing, whether the plurality of cell selection threshold values are within range of a plurality of corresponding minimum network threshold values; and performing a cell selection procedure on the cell in response to determining that the plurality of cell selection threshold values are within range of the plurality of corresponding minimum network threshold values.

Abstract translation: 描述了用于执行小区选择以减少用户设备（UE）和网络实体之间的初始采集时间的方法和装置，包括测量来自小区的信号，所述信号包括至少一个系统信息块（SIB），其中， 至少一个SIB包括多个小区选择阈值; 尝试解码所述至少一个SIB; 响应于成功解码所述至少一个SIB，确定所述信号的一个或多个测量是否通过包括所述多个小区选择阈值的小区选择准则检查; 响应于所述小区选择标准检查失败，确定所述多个小区选择阈值是否在多个对应的最小网络阈值的范围内; 以及响应于确定所述多个小区选择阈值在所述多个对应的最小网络阈值的范围内，对所述小区执行小区选择过程。

公开(公告)号：WO2014172110A1

公开(公告)日：2014-10-23

申请号：PCT/US2014/032802

申请日：2014-04-03

Applicant: QUALCOMM INCORPORATED

Inventor： KANAMARLAPUDI, Sitaramanjaneyulu ,  UDUPA SRIPATHI, Prashant ,  STEIN, Jeremy M. ,  KASTURI, Nitin ,  KIM, Je Woo ,  AMERGA, Messay ,  SHAH, Sagar B. ,  INAMPUDI, Venkata Srihari ,  GOPALAN, Ravi

IPC: H04L1/00 ,  H04L1/20

CPC classification number: H04W24/00 ,  H04L1/0045 ,  H04L1/201

Abstract: Methods and apparatus for processing data received at a user equipment comprises determining a protocol data unit (PDU)-specific Layer 1 decoding metric of a Layer 1 decoded PDU. The methods and apparatus further comprises determining whether to perform a Layer 2 decoding of the Layer 1 decoded PDU based on the PDU-specific Layer 1 decoding metric.

Abstract translation: 用于处理在用户设备接收的数据的方法和装置包括确定第1层解码的PDU的协议数据单元（PDU）特定的层1解码度量。 所述方法和装置还包括基于所述PDU特定层1解码度量来确定是否执行所述第1层解码的PDU的层2解码。

公开(公告)号：WO2012074583A1

公开(公告)日：2012-06-07

申请号：PCT/US2011/048101

申请日：2011-08-17

Applicant: QUALCOMM INCORPORATED ,  DUA, Aditya ,  XIAO, Lei ,  KIM, Je Woo ,  LU, Feng

Inventor： DUA, Aditya ,  XIAO, Lei ,  KIM, Je Woo ,  LU, Feng

IPC: H04B7/08 ,  H04L25/03

CPC classification number: H04B7/0885 ,  H04B7/0854 ,  H04L25/0204 ,  H04L25/0242 ,  H04L25/03292 ,  H04L2025/03426

Abstract: A method of wireless communication with improved performance employs an equalizer receiver with multiple receive antennas. Equalizer taps for linear filters of the equalizer receiver are generated by determining a conditioned covariance matrix of a first data path and a second data path based on a first gain (g 0 ) of this first data path and a second gain (g 1 ) of the second data path. The equalizer taps of the first data path and the second data path are determined based on the conditioned covariance matrix. The first data path and the second data path are then equalized using the equalizer taps. An equalized signal is generated by combining the equalized first data path with the equalized second data path.

Abstract translation: 具有改进性能的无线通信方法采用具有多个接收天线的均衡器接收机。 通过基于第一数据路径的第一增益（g0）和第二数据路径的第二增​​益（g1）确定第一数据路径和第二数据路径的调节协方差矩阵来生成均衡器接收器的线性滤波器的均衡器抽头 数据路径。 基于条件协方差矩阵确定第一数据路径和第二数据路径的均衡器抽头。 然后使用均衡器抽头来平衡第一数据路径和第二数据路径。 通过组合均衡的第一数据路径和均衡的第二数据路径来产生均衡的信号。

公开(公告)号：WO2010123783A1

公开(公告)日：2010-10-28

申请号：PCT/US2010/031500

申请日：2010-04-16

Applicant: QUALCOMM INCORPORATED ,  LI, Junqiang ,  KIM, Je Woo ,  NARASIMHA, Madihally J.

Inventor： LI, Junqiang ,  KIM, Je Woo ,  NARASIMHA, Madihally J.

IPC: H04L27/26 ,  H04B17/00

CPC classification number: H04L27/2695 ,  H04B17/309 ,  H04L27/266

Abstract: The frequency offset of a received signal in a WiMAX system is estimated by a frequency-tracking loop discriminator. Then a Doppler spread of the wireless channel is estimated based on the frequency offset, and classified based on comparison with threshold values.

Abstract translation: 通过频率跟踪环路鉴别器来估计WiMAX系统中的接收信号的频率偏移。 然后，基于频率偏移来估计无线信道的多普勒扩展，并且基于与阈值的比较来分类。

公开(公告)号：WO2010045033A2

公开(公告)日：2010-04-22

申请号：PCT/US2009/059147

申请日：2009-09-30

Applicant: QUALCOMM Incorporated ,  PARK, Jong Hyeon ,  BREHLER, Matthias ,  BANISTER, Brian Clarke ,  VAN ZELST, Allert ,  CHANG, Tae Ryun ,  JONES IV, Vincent K. ,  KIM, Je Woo

Inventor： PARK, Jong Hyeon ,  BREHLER, Matthias ,  BANISTER, Brian Clarke ,  VAN ZELST, Allert ,  CHANG, Tae Ryun ,  JONES IV, Vincent K. ,  KIM, Je Woo

IPC: H04L25/02

CPC classification number: H04L25/03171 ,  H04L5/0023 ,  H04L25/03197 ,  H04L25/03331 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: Certain embodiments of the present disclosure provide techniques for approximate computation of l 2 norms as a part of the maximum likelihood (ML) detection: tri-maxmin, maxsum and sortsum algorithms. The proposed approximation schemes show better accuracy than conventional approximation schemes - the abssum and maxmin algorithms, while the computational complexity is very similar. The error rate performance of the ML detection that utilizes proposed norm-approximation techniques are very close to the reference ML detection with exact calculation of l 2 norms, while the computational complexity is significantly smaller.

Abstract translation: 本公开的某些实施例提供了用于近似计算作为最大似然（ML）检测的一部分的l2范数的技术：tri-maxmin，maxsum和sortsum算法。 所提出的近似方案显示出比传统的近似方案更好的精度 - abssum和maxmin算法，而计算复杂度非常相似。 利用提出的范数近似技术的ML检测的误码率性能与精确计算l 2范数非常接近参考ML检测，而计算复杂度显着更小。

公开(公告)号：WO2010033437A2

公开(公告)日：2010-03-25

申请号：PCT/US2009/056759

申请日：2009-09-12

Applicant: QUALCOMM Incorporated ,  PARK, Jong Hyeon ,  VAN ZELST, Allert ,  BANISTER, Brian Clarke ,  KIM, Je Woo ,  BREHLER, Matthias ,  JONES IV, Vincent K.

Inventor： PARK, Jong Hyeon ,  VAN ZELST, Allert ,  BANISTER, Brian Clarke ,  KIM, Je Woo ,  BREHLER, Matthias ,  JONES IV, Vincent K.

IPC: H04L25/03

CPC classification number: H04L25/03171 ,  H04L25/03197 ,  H04L25/03331 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: A "post-squaring" detection algorithm, and related devices, that may reduce the complexity of maximum likelihood detection (MLD) schemes while preserving their performance is provided. Rather than search for optimum metrics (such as minimum distance metrics) based on squared norm values, a search may be based on un-squared norm metrics, and the squaring may be postponed, for example, until subsequent log-likelihood ratio (LLR) computation. For certain embodiments, approximations of un-squared norm values may significantly reduce computation complexity.

Abstract translation:

“平方后” 检测算法和相关设备，可以降低最大似然检测（MLD）方案的复杂度，同时保持其性能。 基于平方范数值搜索最优度量（例如最小距离度量），而不是搜索可以基于非平方范数度量，并且平方可以被推迟，例如，直到后续的对数似然比（LLR） 计算。 对于某些实施例，非平方范数值的近似值可以显着降低计算复杂度。

公开(公告)号：WO2009088533A1

公开(公告)日：2009-07-16

申请号：PCT/US2008/070362

申请日：2008-07-17

Applicant: QUALCOMM Incorporated ,  CHANG, Tae Ryun ,  KIM, Je Woo ,  PARK, Jong Hyeon ,  PARK, Ju Won ,  LEE, Chun Woo ,  SIM, Bok Tae

Inventor： CHANG, Tae Ryun ,  KIM, Je Woo ,  PARK, Jong Hyeon ,  PARK, Ju Won ,  LEE, Chun Woo ,  SIM, Bok Tae

IPC: H03M13/00 ,  H04L12/28

CPC classification number: H03M13/00 ,  H03M13/3994

Abstract: A method and apparatus for decoding encoded data bits of a wireless communication transmission are provided. A set of a-priori bit values corresponding to known bit values of the encoded data bits may be generated. Decoding paths that correspond to decoded data bits that are inconsistent with the a-priori bit values may be removed from the possible decoding paths to consider, and decoding the encoded data bits by selecting a decoding path from remaining decoding paths of the possible decoding paths that were not removed.

Abstract translation: 提供了一种用于解码无线通信传输的编码数据位的方法和装置。 可以生成对应于编码数据位的已知位值的一组先验位值。 可以从可能的解码路径中去除对应于与先验比特值不一致的解码数据比特的解码路径，并且通过从可能的解码路径的剩余解码路径中选择解码路径来解码编码数据比特， 没有删除。

公开(公告)号：WO2009075899A1

公开(公告)日：2009-06-18

申请号：PCT/US2008/052722

申请日：2008-01-31

Applicant: QUALCOMM Incorporated ,  PARK, Jong Hyeon ,  SIM, Bok Tae ,  KIM, Je Woo ,  HURT, James Y. ,  GLAZKO, Serguei A. ,  NANAVATI, Sameer

Inventor： PARK, Jong Hyeon ,  SIM, Bok Tae ,  KIM, Je Woo ,  HURT, James Y. ,  GLAZKO, Serguei A. ,  NANAVATI, Sameer

IPC: H04L1/18

CPC classification number: H04L1/1845 ,  H04L1/1812

Abstract: A method and apparatus for combining retransmitted hybrid automatic repeat-request (HARQ) messages divided into coding blocks in an orthogonal frequency-division multiplexing (OFDM)/orthogonal frequency-division multiple access (OFDMA) receiver are provided. According to such a coding-block-based HARQ combining scheme, the quality of each coding block may be compared to a threshold to determine whether the decoded bits or the HARQ combined signal should be saved for each coding block for subsequent HARQ iterations. In addition to reducing the required HARQ buffer size while preserving the combining gain, coding-block-based HARQ combining may also provide fast decoding and reduced power consumption when compared to conventional HARQ combining techniques.

Abstract translation: 提供了一种用于组合在正交频分复用（OFDM）/正交频分多址（OFDMA）接收机中被划分为编码块的重传的混合自动重复请求（HARQ）消息的方法和装置。 根据这样的基于编码块的HARQ组合方案，可以将每个编码块的质量与阈值进行比较，以确定是否应为每个编码块保存解码比特或HARQ组合信号以用于后续HARQ迭代。 除了减少所需的HARQ缓冲器大小同时保持组合增益之外，与常规HARQ组合技术相比，基于编码块的HARQ组合还可以提供快速解码和降低的功耗。