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公开(公告)号：BRPI0713435B1
公开(公告)日：2020-04-14
申请号：BRPI0713435
申请日：2007-06-29
Applicant: QUALCOMM INC
Inventor： BYOUNG-HOON KIM , DURGA MALLADI , HAO XU
Abstract: método e equipamento para mecanismo de seleção entre ofdm-mimo e lfdm-simo. sistemas e metodologias que facilitam a comutação entre diversas combinações de mimo, simo, siso e ofdm, lfdm e ifdm são descritos. de acordo com vários aspectos, um método para uma rede de comunicação sem fio é provido, o qual inclui: receber um primeiro conjunto de informações de dados, em que o primeiro conjunto de informações compreende um primeiro valor, determinar se o primeiro valor está acima de um limite e transmitir uma indicação para comutar usando a primeira técnica de transmissão se determinado que o primeiro valor está acima do limite.
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公开(公告)号：BRPI0709168B1
公开(公告)日：2019-09-17
申请号：BRPI0709168
申请日：2007-03-27
Applicant: QUALCOMM INC
Inventor： BYOUNG-HOON KIM , DURGA PRASAD MALLADI , XINPING ZHANG
Abstract: controle de potência e gerenciamento de recursos em sistemas ortogonais sem fio. é fornecido um método para controlar potência em uma rede sem fio, o método inclui determinar um parâmetro de potência relativa em um dispositivo sem fio como um terminal sem fio móvel e receber um parâmetro de carga no dispositivo sem fio, onde o parâmetro de carga é associado a pelo menos uma outra célula sem fio. o método inclui ajustar a potência de transmissâo do dispositivo sem fio em vista do parâmetro de potência relativa e parâmetro de carga. em outra modalidade, a potência de transmissão pode ser controlada em vista de um parâmetro de densidade espectral de potência absoluta.
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公开(公告)号：TR201820108T4
公开(公告)日：2019-01-21
申请号：TR201820108
申请日：2007-10-31
Applicant: QUALCOMM INC
Inventor： JUAN MONTOJO , BYOUNG-HOON KIM , DURGA PRASAD MALLADI , TAO LUO
Abstract: Buluş, bir kablosuz iletişim sisteminde bir referans sinyali teşkil etmek için bir yöntem (700) olan hücre araması için referans sinyali tasarımı ile ilgilidir. Yöntemin (700) bir baz istasyonu tarafından gerçekleştirilmesi ve: toplam bir sistem bant genişliğinden bağımsız olan, referans sinyalinin iletileceği bir terminale gönderileceği bilinen ve toplam sistem bant genişliğinin bir alt kümesi olan bir ortak frekans bandında bir tane ya da daha fazla sayıda senkronizasyon kodunun iletilmesi (704); bir referans sinyali için bir merkezi bölüm teşkil edilmesi (710), burada, merkezi bölümün ortak frekans bandını kapsaması; referans sinyalinin, referans sinyalinin toplam sistem bant genişliğini kapsayacağışekilde teşkil edilmiş olan merkezi bölümün genişletilmesi suretiyle üretilmesi (712); ve referans sinyalinin toplam sistem bant genişliği boyunca iletilmesi (714) özelliklerini içermektedir.
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公开(公告)号：PT2122842T
公开(公告)日：2017-09-14
申请号：PT08727547
申请日：2008-01-10
Applicant: QUALCOMM INC
Inventor： DURGA PRASAD MALLADI , BYOUNG-HOON KIM , TAO LUO
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公开(公告)号：MY158550A
公开(公告)日：2016-10-14
申请号：MYPI20090397
申请日：2007-08-23
Applicant: QUALCOMM INC
Inventor： JUAN MONTOJO , PRASAD MALLADI DURGA , BYOUNG-HOON KIM
IPC: H04J3/06
Abstract: SYSTEMS AND METHODS ALLOW CELL ACQUISITION IN A WIRELESS COMMUNICATION SYSTEM IN FREQUENCY DIVISION MULTIPLE ACCESS MODE OF OPERATION. CODE SEQUENCES TRANSMITTED OVER PRIMARY SYNCHRONIZATION CHANNEL (P-SCH) ENABLE DETECTION OF SYMBOL BOUNDARY, CYCLIC PREFIX DURATION, AND INDICATION OF BROADCAST CHANNEL BANDWIDTH. SEQUENCES TRANSMITTED OVER SECONDARY SYNCHRONIZATION CHANNEL (S-SCH) AFFORD RADIO FRAME BOUNDARY DETECTION, CELL IDENTIFICATION, AND BROADCAST CHANNEL BANDWIDTH INDICATION. CELL IDENTIFICATION CAN BE CONVEYED JOINTLY BETWEEN P-SCH AND S-SCH CODES.BROADCAST CHANNEL SEQUENCES CONVEY CYCLIC PREFIX TIMING, SYSTEM BANDWIDTH, AND OTHER SYSTEM INFORMATION. RELAY OF CELL ACQUISITION INFORMATION, AS WELL AS MULTIPLE-CELL ACQUISITION WHEN WIRELESS SYSTEM OPERATES WITH FREQUENCY REUSE ARE DESCRIBED.
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Patent Agency Ranking
公开(公告)号：IN7705DEN2014A
公开(公告)日：2015-07-10
申请号：IN7705DEN2014
申请日：2014-09-16
Applicant: QUALCOMM INC
Inventor： BYOUNG-HOON KIM
Abstract: The present invention relates to method and apparatus, said apparatus comprising: at least one processor to obtain samples from multiple receive antennas for a multiple-input multiple-output (MIMO) transmission sent from multiple transmit antennas, to determine channel conditions based on the samples, to select one of multiple channel and noise estimation schemes based on the channel conditions, and to perform channel and noise estimation based on the selected channel and noise estimation scheme, wherein the channel conditions are characterized by a ratio of a combined energy of non-strongest signal paths that exceed a threshold to an energy of a strongest signal path; and a memory coupled to the at least one processor. Figure 1
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公开(公告)号：PH12012501866A1
公开(公告)日：2015-05-11
申请号：PH12012501866
申请日：2012-09-20
Applicant: QUALCOMM INC
Inventor： PRASAD MALLADI DURGA , BYOUNG-HOON KIM , JUAN MONTOJO , SANDIP SARKAR
Abstract: Techniques for sending control information in a wireless communication system are described. In an aspect, a UE spreads control information across frequency with a DFT and across time with an orthogonal sequence to obtain output data for the control information. In one design, the UE receives codewords for N HARQ processes in N downlink subframes, determines an ACK value for each HARQ process, codes N ACK values for the N HARQ processes to obtain ACK information, generates output data for the ACK information, and sends the output data in one of M uplink subframes. In another aspect, first control information is processed based on a first coding and multiplexing scheme utilizing code division multiplexing in time and frequency domains. Second control information is processed based on a second coding and multiplexing scheme utilizing code division multiplexing in time domain and spreading in frequency domain.
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28.发明专利
公开(公告)号：AU2008286775B2
公开(公告)日：2011-11-17
申请号：AU2008286775
申请日：2008-08-15
Applicant: QUALCOMM INC
Inventor： SANDIP SARKAR , PRASAD MALLADI DURGA , BYOUNG-HOON KIM , JUAN MONTOJO
IPC: H04B7/04
Abstract: Techniques for sending multiple-input multiple-output (MIMO) transmissions in wireless communication systems are described. In one design, a transmitter sends a first reference signal via a first link, e.g., a cell-specific reference signal via the downlink. The transmitter receives channel quality indicator (CQI) information determined by a receiver based on the first reference signal. The transmitter also receives a second reference signal from the receiver via a second link, e.g., a sounding reference signal via the uplink. The transmitter obtains at least one MIMO channel matrix for the first link based on the second reference signal. The transmitter determines at least one precoding matrix based on the at least one MIMO channel matrix, e.g., in accordance with ideal eigen-beamforming or pseudo eigen-beamforming. The transmitter then sends a data transmission to the receiver based on the at least one precoding matrix and the CQI information.
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29.发明专利
公开(公告)号：AU2008286714B2
公开(公告)日：2011-11-10
申请号：AU2008286714
申请日：2008-08-15
Applicant: QUALCOMM INC
Inventor： JUAN MONTOJO , SANDIP SARKAR , PRASAD MALLADI DURGA , BYOUNG-HOON KIM
IPC: H04B7/04
Abstract: Techniques for sending traffic data and control information in a wireless communication system are described. In one design, a transmitter (e.g., a Node B or a UE) may perform beamforming to send traffic data on M layers based on a precoding matrix, where M may be one or greater. The transmitter may also perform beamforming to send control information on up to M layers based on the same precoding matrix used for the traffic data. The transmitter may send the beamformed traffic data on a first physical channel and may send the beamformed control information on a second physical channel. The transmitter may multiplex the beamformed traffic data and the beamformed control information using time division multiplexing (TDM) or frequency division multiplexing (FDM).
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公开(公告)号：AU2008247511C1
公开(公告)日：2011-09-08
申请号：AU2008247511
申请日：2008-05-02
Applicant: QUALCOMM INC
Inventor： KE LIU , BYOUNG-HOON KIM , PETER GAAL , TAO LUO
IPC: H04L27/26
Abstract: Devices and methods are provided to generate a set of synchronization channel sequences that are robust with respect to systematic errors of time offsets and provide optimal frequency offset estimation. A set of root indices of Zadoff-Chu sequences that optimize a performance metric or merit factor in a first domain (e.g time domain) and in a reciprocal domain (e.g. frequency domain) are identified. Optimal indices satisfy a centro-symmetric relationship with respect to half-value of sequence length: When is an optimal index, N- is also ah optimal root index, For sequences of length Q = N, a base sequence generated with an optimal sequence can be utilized to generate at least two other further optimal sequences through sign-flip, conjugation, and periodic modulation operations. Base sequences can be assigned to different sectors of a base station.
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