公开(公告)号：EP2232931B1

公开(公告)日：2017-03-29

申请号：EP08862602.3

申请日：2008-10-31

Applicant: QUALCOMM Incorporated

Inventor： EDGE, Stephen W. ,  BLACK, Peter John ,  WU, Qiang ,  ZHAO, Wanlun ,  TOKGOZ, Yeliz ,  PADOVANI, Roberto ,  NAGUIB, Ayman Fawzy ,  KIM, Je Woo ,  DAYAL, Pranav ,  AGASHE, Parag Arun

IPC: H04W24/00

CPC classification number: H04W24/00 ,  G01S5/0226 ,  G01S5/0236 ,  H04W64/00

公开(公告)号：EP2232806B1

公开(公告)日：2016-05-04

申请号：EP08780396.1

申请日：2008-01-31

Applicant: QUALCOMM Incorporated

Inventor： PARK, Jong Hyeon ,  PARK, Ju Won ,  KIM, Je Woo

IPC: H04L27/26

CPC classification number: H04L27/2659

公开(公告)号：EP2235901B1

公开(公告)日：2015-07-15

申请号：EP08771223.8

申请日：2008-06-16

Applicant: QUALCOMM Incorporated

Inventor： PARK, Jong Hyeon ,  CHANG, Tae Ryun ,  KIM, Je Woo

IPC: H04L27/26 ,  H04L25/03

CPC classification number: H04L27/2647 ,  H04L5/0046 ,  H04L25/022 ,  H04L2025/03414

公开(公告)号：EP2371073B1

公开(公告)日：2014-12-03

申请号：EP09796213.8

申请日：2009-12-17

Applicant: QUALCOMM Incorporated

Inventor： NARASIMHA, Madihally, J. ,  KIM, Je Woo ,  YU, Yuanning ,  PARK, Jong Hyeon

IPC: H04B7/208 ,  G06F17/14 ,  G06F5/01 ,  H04L27/26

CPC classification number: H04L27/2614

公开(公告)号：EP2366257B1

公开(公告)日：2012-11-14

申请号：EP09748582.5

申请日：2009-10-16

Applicant: QUALCOMM Incorporated

Inventor： KIM, Doo Seok ,  PARK, Jong Ro ,  KIM, Je Woo

IPC: H04W28/26

CPC classification number: H04W28/06 ,  H04W72/0413

公开(公告)号：EP2371073A2

公开(公告)日：2011-10-05

申请号：EP09796213.8

申请日：2009-12-17

Applicant: QUALCOMM Incorporated

Inventor： NARASIMHA, Madihally, J. ,  KIM, Je Woo ,  YU, Yuanning ,  PARK, Jong Hyeon

IPC: H04B7/208 ,  G06F17/14 ,  G06F5/01 ,  H04L27/26

CPC classification number: H04L27/2614

Abstract: Certain embodiments of the present disclosure relate to methods for peak-to-average power ratio (PAPR) reduction of a transmission signal in a single carrier frequency division multiple access (SC-FDMA) system. The proposed methods and systems are based on manipulations of an SC-FDMA transmission signal in a time- and/or a frequency-domain.

公开(公告)号：EP2342875A1

公开(公告)日：2011-07-13

申请号：EP09789450.5

申请日：2009-02-03

Applicant: QUALCOMM Incorporated

Inventor： KIM, Youngjae ,  KIM, Je Woo ,  PARK, Jong Hyeon

IPC: H04L25/03

CPC classification number: H04L25/03159 ,  H04L25/0204 ,  H04L27/2647 ,  H04L2025/03426 ,  H04L2025/03617

Abstract: Aspects of the disclosure provide unbiased channel equalization applied in a MIMO OFDM system with spatial multiplexing. According to certain embodiments, a MMSE receiver can be implemented with the QR decomposition (QRMMSE detection) instead of direct inversion of channel matrix by exploiting an augmented channel matrix. A simple and efficient bias removal technique is presented herein, whereby unbiased QRMMSE equalization may provide identical detection accuracy as a conventional unbiased MMSE approach. For certain embodiments, multiple access interference may be further reduced if the VBLAST version of the unbiased QRMMSE detection is applied.

公开(公告)号：EP2232806A1

公开(公告)日：2010-09-29

申请号：EP08780396.1

申请日：2008-01-31

Applicant: QUALCOMM Incorporated

Inventor： PARK, Jong Hyeon ,  PARK, Ju Won ,  KIM, Je Woo

IPC: H04L27/26

CPC classification number: H04L27/2659

Abstract: In accordance with a method for identifying a preamble sequence and for estimating an integer carrier frequency offset, a signal that comprises a preamble sequence from a set of possible preamble sequences is received. A reduced set of integer carrier frequency offset (CFO) candidates may be determined. Cross-correlation operations may be performed with respect to the received signal and multiple candidate transmitted signals. Each candidate transmitted signal may include one of the set of possible preamble sequences. In addition, each candidate transmitted signal may correspond to one of the reduced set of integer CFO candidates. Multiple correlation values may be determined as a result of the cross-correlation operations. The correlation values may be used to identify the preamble sequence and to estimate the integer CFO.

公开(公告)号：EP2163025A2

公开(公告)日：2010-03-17

申请号：EP08755615.5

申请日：2008-05-15

Applicant: QUALCOMM Incorporated

Inventor： BLACK, Peter J. ,  WU, Qiang ,  ZHAO, Wanlun ,  TOKGOZ, Yeliz ,  PADOVANI, Roberto ,  NAGUIB, Ayman Fawzy ,  KIM, Je Woo ,  AGASHE, Parag A. ,  BHUSHAN, Naga ,  DAYAL, Pranav

IPC: H04L5/02

CPC classification number: H04W4/02 ,  H03M1/185 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/261 ,  H04L27/2613 ,  H04W16/02 ,  H04W64/00

Abstract: Briefly, in accordance with one embodiment, a method of transmitting signals is provided. Signal waveforms are transmitted from at least two respective sectors. The at least two respective sectors are from at least two different sets of a superset of sectors. The transmitted signal waveforms include signal waveforms at least nearly mutually orthogonal at least along a particular signal dimension. An advantage of such an embodiment, for example, is reduced signal interference.

Abstract translation: 简而言之，根据一个实施例，提供一种发送信号的方法。 信号波形从至少两个相应扇区发送。 所述至少两个相应的扇区来自扇区的超集的至少两个不同的集合。 所发送的信号波形包括至少沿特定信号维度至少几乎相互正交的信号波形。 例如，这种实施例的优点是减少了信号干扰。

公开(公告)号：EP3135063A1

公开(公告)日：2017-03-01

申请号：EP15718109.0

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失败; 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。