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公开(公告)号：BRPI0709100A2
公开(公告)日：2011-06-28
申请号：BRPI0709100
申请日：2007-03-28
Applicant: QUALCOMM INC
Inventor： KIM JE WOO , HAN KYUNG SUP , RAKYTYANSKYY VOLODYMYR , SULIMA OLEKSANDR
Abstract: An embodiment of the present invention is a modified inverted-F antenna for wireless communication. The antenna circuit includes a dielectric substrate having a first surface, a radiating stub on the first surface of the dielectric substrate, and a first ground plate on the first surface of the dielectric substrate to couple to ground. The first ground plate includes one or more grounded capacitive stubs spaced apart from the radiating stub. The one or more grounded capacitive stubs tune performance parameters for the antenna circuit.
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公开(公告)号：MX2010006820A
公开(公告)日：2010-09-07
申请号：MX2010006820
申请日：2008-10-31
Applicant: QUALCOMM INC
Inventor： PADOVANI ROBERTO , BHUSHAN NAGA , BLACK PETER JOHN , NAGUIB AYMAN FAWZY , EDGE STEPHEN W , AGASHE PARAG ARUN , ZHAO WANLUN , WU QIANG , TOKGOZ YELIZ , KIM JE WOO , DAYAL PRANAV
IPC: H04W64/00
Abstract: Brevemente, de acuerdo con una modalidad, se proporciona un método para transmitir señales. Las formas de onda de señal se transmiten desde por lo menos dos sectores respectivos. Por lo menos dos sectores respectivos provienen de por lo menos dos conjuntos diferentes de un súper conjunto de sectores. Las formas de onda de señal transmitidas incluyen formas de onda de señal por lo menos casi mutuamente ortogonales, por lo menos a lo largo de una dimensión de señal particular. Por ejemplo, una ventaja de tal modalidad se reduce a la interferencia de señal.
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公开(公告)号：CA2716017A1
公开(公告)日：2009-10-01
申请号：CA2716017
申请日：2008-06-19
Applicant: QUALCOMM INC
Inventor： PARK JONG HYEON , SIM BOK TAE , KIM JE WOO
Abstract: A method for combining signals coming from multiple diversity sources may include performing maximal-ratio combining (MRC) based equalization and combining for receiver antenna diversity. The method may also include performing MRC-based equalization and combining for repetition diversity. The method may also include performing MRC-based equalization and combining for duplication diversity. The MRC-based equalization and combining for receiver antenna diversity, the MRC-based equalization and combining for repetition diversity, and the MRC-based equalization and combining for duplication diversity may each be performed separately.
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公开(公告)号：CA2713318A1
公开(公告)日：2009-08-27
申请号：CA2713318
申请日：2008-06-19
Applicant: QUALCOMM INC
Inventor： PARK JONG HYEON , KIM JE WOO
Abstract: Certain embodiments utilize raw signals to estimate channel quality, as contrasted to utilizing equalized signals or after channel estimation. For example, signal quality may be estimated by calculating powers of pilot sub-carriers and null sub-carriers of the raw signals. To mitigate channel effect, certain embodiments utilize first and/or second order differentiation schemes.
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公开(公告)号：CA2706470A1
公开(公告)日：2009-06-18
申请号：CA2706470
申请日：2008-01-31
Applicant: QUALCOMM INC
Inventor： PARK JONG HYEON , PARK JU WON , KIM JE WOO
IPC: H04L27/26
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.
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Patent Agency Ranking
公开(公告)号：CA2685899A1
公开(公告)日：2008-11-27
申请号：CA2685899
申请日：2008-05-15
Applicant: QUALCOMM INC
Inventor： WU QIANG , BLACK PETER J , TOKGOZ YELIZ , PADOVANI ROBERTO , NAGUIB AYMAN FAWZY , KIM JE WOO , AGASHE PARAG A , DAYAL PRANAV , BHUSHAN NAGA , ZHAO WANLUN
IPC: H04L5/02
Abstract: Briefly, in accordance with one embodiment, a method of transmitting sign als is provided. Signal waveforms are transmitted from at least two respecti ve sectors. The at least two respective sectors are from at least two differ ent sets of a superset of sectors. The transmitted signal waveforms include signal waveforms at least nearly mutually orthogonal at least along a partic ular signal dimension. An advantage of such an embodiment, for example, is r educed signal interference.
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57.发明专利
公开(公告)号：CA2650633A1
公开(公告)日：2007-12-13
申请号：CA2650633
申请日：2007-05-24
Applicant: QUALCOMM INC
Inventor： PARK JU WON , PARK JONG HYEON , KIM JE WOO
IPC: H04B7/10
Abstract: The present disclosure includes techniques to process signals in a communication system, in which multiple signal processing units process signals received from multiple antennae. The signal processor units are controlled by operational-mode control signals, which are generated using an estimated Carrier-to-Interference-Noise-Ratio (CINR). The estimated CINR is generated using an equalized and combined signal, which is generated from the received signals and the estimated channel responses using the processed signals according to an operational mode. In another embodiment, a controller generates sub-carrier allocation signals using an allocation base. A channel status information (CSI) and multiple-input-multiple-output (MIMO) controller generates sub-carrier CSI signals and operational-mode control signals using the sub-carrier allocation signals, estimated channel responses, and estimated CINR. The operational-mode control signals select one of multiple antenna paths. A transmitter-diversity processor generates transmitter-diversity signals as a function of at least a mapped signal, sub-carrier CSI signals, and operational mode control signals.
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公开(公告)号：WO2010091216A3
公开(公告)日：2011-02-24
申请号：PCT/US2010023250
申请日：2010-02-04
Applicant: QUALCOMM INC , YU YUANNING , HURT JAMES Y , PARK JONG HYEON , KIM JE WOO
Inventor： YU YUANNING , HURT JAMES Y , PARK JONG HYEON , KIM JE WOO
IPC: H04L25/02
CPC classification number: H04L25/025 , H04L5/0007 , H04L25/0232
Abstract: Certain embodiments of the present disclosure provide techniques for channel estimation without resorting to the channel second-order statistics. Methods and systems are proposed for improving the performance of an un-constrained least squares channel interpolator by using available side information of the channel, such as signal-to-noise ratio (SNR), Doppler frequency and/or delay spread.
Abstract translation: 本公开的某些实施例提供用于信道估计的技术，而不依赖于信道二阶统计。 提出了通过使用信道的可用侧信息（例如信噪比（SNR），多普勒频率和/或延迟扩展）来提高未受约束的最小二乘通道内插器的性能的方法和系统。
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公开(公告)号：WO2007126897A3
公开(公告)日：2008-11-06
申请号：PCT/US2007007694
申请日：2007-03-28
Applicant: QUALCOMM INC , KIM JE WOO , HAN KYUNG SUP , RAKYTYANSKYY VOLODYMYR , SULIMA OLEKSANDR
Inventor： KIM JE WOO , HAN KYUNG SUP , RAKYTYANSKYY VOLODYMYR , SULIMA OLEKSANDR
CPC classification number: H01Q9/0421 , H01Q1/243 , H01Q1/38 , H01Q9/42 , H01Q21/28
Abstract: An embodiment of the present invention is a modified inverted-F antenna for wireless communication. The antenna circuit includes a dielectric substrate having a first surface, a radiating stub on the first surface of the dielectric substrate, and a first ground plate on the first surface of the dielectric substrate to couple to ground. The first ground plate includes one or more grounded capacitive stubs spaced apart from the radiating stub. The one or more grounded capacitive stubs tune performance parameters for the antenna circuit.
Abstract translation: 本发明的实施例是用于无线通信的改进的倒F型天线。 天线电路包括具有第一表面的电介质基底，介电基底的第一表面上的辐射短截线，以及介电基片的第一表面上的第一接地板，以耦合到地面。 第一接地板包括与辐射短截线间隔开的一个或多个接地电容短截线。 一个或多个接地电容性短线调谐天线电路的性能参数。
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60.发明公开
公开(公告)号：EP2020096A4
公开(公告)日：2014-07-02
申请号：EP07809176
申请日：2007-05-24
Applicant: QUALCOMM INC
Inventor： PARK JONG HYEON , PARK JU WON , KIM JE WOO
CPC classification number: H04L1/0015 , H04B7/0417 , H04B7/0608 , H04B7/0689 , H04B7/0814 , H04B7/0871 , H04L1/0001 , H04L1/06 , H04L27/2608
Abstract: An embodiment of the present invention is a technique to process signals in a communication system. In one embodiment, a plurality of signal processing units processes signals received from a plurality of antennae. The signal processor units are controlled by operational mode control signals. A channel estimator estimates channel responses using the processed signals according to an operational mode. An equalizer and combiner generates an equalized and combined signal using the received signals and the estimated channel responses. A Carrier to Interference Noise Ratio (CINR) estimator estimates CINR from the equalized and combined signal. The estimated CINR is used to generate the operational mode control signals. In another embodiment, a sub-carrier allocation controller generates sub-carrier allocation signals using an allocation base. A channel status information (CSI) and multiple input multiple output (MIMO) controller generates sub-carrier CSI signals and operational mode control signals using the sub-carrier allocation signals, estimated channel responses provided by a channel estimator, and an estimated CINR provided by an CINR estimator. The operational mode control signals select one of a plurality of antenna paths associated with a plurality of antennae. A transmitter diversity processor generates transmitter diversity signals as a function of at least a mapped signal Mk, the sub-carrier CSI signals, and the operational mode control signals.
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