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公开(公告)号：JP2012016024A
公开(公告)日：2012-01-19
申请号：JP2011167384
申请日：2011-07-29
Applicant: Qualcomm Inc , クゥアルコム・インコーポレイテッドQualcomm Incorporated
Inventor： LIMBO LEE , ASHOK MANTRAVADI , FUYUNG LING , RAGHURAMAN KRISHNAMURTHY
CPC classification number: H04W48/16
Abstract: PROBLEM TO BE SOLVED: To provide systems and methodologies that facilitate monitoring RF channels in a wireless communication environment to determine whether one or more channels comprise a forward-link-only (FLO) signal.SOLUTION: A receiver can receive a first RF channel with a FLO signal and can monitor other RF channels for FLO signals. When it is determined that a monitored RF channel comprises a FLO signal, the receiver can switch between the first RF channel and the monitored RF channel to facilitate providing seamless reception of the FLO signal, which can be super-frame synchronized between RF channels. FLO signal detection can be performed using one or more of a wide-area identification channel energy detection protocol and a wide-area overhead information symbol decoding error detection protocol.
Abstract translation: 要解决的问题：提供有助于在无线通信环境中监视RF信道以确定一个或多个信道是否包括仅向前链路（FLO）信号的系统和方法。 解决方案：接收机可以接收具有FLO信号的第一RF信道，并且可以监视FLO信号的其他RF信道。 当确定被监视的RF信道包括FLO信号时，接收机可以在第一RF信道和所监视的RF信道之间切换，以便于提供可在RF信道之间超帧同步的FLO信号的无缝接收。 可以使用广域识别信道能量检测协议和广域开销信息符号解码错误检测协议中的一个或多个来执行FLO信号检测。 版权所有（C）2012，JPO＆INPIT
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公开(公告)号：BR112016006671A2
公开(公告)日：2017-08-01
申请号：BR112016006671
申请日：2014-09-18
Applicant: QUALCOMM INC
Inventor： ASHOK MANTRAVADI , GAVIN BERNARD HORN , PRANAV DAYAL , XIAOXIA ZHANG
Abstract: ----------------------- page 1----------------------- 1/1 resumo “multifluxo com seleã‡ãƒo de antenaâ€� otimizar o desempenho multifluxo e prioridade em todos ues e redes, incluindo receber a seleã§ã£o de antena nos ues, mediã§ã£o csi e relatã³rios e programaã§ã£o para a operaã§ã£o multifluxo. as tã©cnicas podem avaliar as condiã§ãµes do canal para um ue para mãºltiplos pontos de acesso e combinaã§ãµes diferentes de antenas e determinar como o ue deve realimentaã§ã£o csi para transmissãµes de mãºltiplos pontos de acesso. as tã©cnicas divulgados tambã©m incluem tã©cnicas para programar transmissãµes dos mãºltiplos pontos de acesso que utilizam as informaã§ãµes de csi para otimizar o desempenho multifluxo e prioridade em todos ues e redes. vã¡rios modos de programaã§ã£o usar o retorno dos ues, incluindo as taxas mã¡ximas suportadas para cada link e/ou taxas com base na capacidade de soma mã¡xima dos links utilizados simultaneamente. o programador pode manter listas de prioridade separadas para cada ponto de acesso ou uma ãºnica lista de prioridade em ambos os pontos de acesso. as tã©cnicas podem ser usadas para a operaã§ã£o multifluxo usando lte e wlan ligaã§ãµes.
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公开(公告)号：MY155227A
公开(公告)日：2015-09-30
申请号：MYPI20061059
申请日：2006-03-10
Applicant: QUALCOMM INC
Inventor： MAO WANG MICHAEL , BOJAN VRCELJ , KIRAN MUKKAVILLI KRISHNA , RAGHURAMAN KRISHNAMOORTHI , ASHOK MANTRAVADI
IPC: H04L25/02
Abstract: SYSTEMS AND METHODS ARE PROVIDED FOR THE TRANSMISSION OF WAVEFORMS TO AID CHANNEL ESTIMATION, TIMING SYNCHRONIZATION, AND AGC BOOTSTRAPPING IN A WIRELESS NETWORK (100). THE METHOD INCLUDES INSERTING AT LEAST ONE TDM PILOT SYMBOL LOCATED AT A TRANSITION BETWEEN WIDE AREA AND LOCAL AREA WAVEFORMS TO FACILITATE DECODING OF THE TRANSMISSION BLOCK.
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公开(公告)号：BRPI0511736B1
公开(公告)日：2021-05-11
申请号：BRPI0511736
申请日：2005-06-03
Applicant: QUALCOMM INC
Inventor： ANASTASIOS STAMOULIS , ASHOK MANTRAVADI , AVNEESH AGRAWAL , DURGA P MALLADI , RAMASWAMY MURALI
Abstract: sistema de comunicação sem fio com comprimento de prefixo cíclico configurável. para transmitir dados de maneira a atenuar os efeitos prejudiciais do espalhamento por retardo, são inicialmente determinadas as áreas de cobertura esperadas para várias transmissões a serem enviadas em várias partições de tempo. comprimentos de prefixo cíclico para estas transmissões são selecionados com base nas áreas de cobertura esperadas. o comprimento de prefixo cíclico para cada transmissão pode ser selecionado dentre um conjunto de comprimentos de prefixo cíclico permitidos com base na área de cobertura esperada para essa transmissão, no escalonamento de pilotos utilizado para a transmissão e assim por diante. por exemplo, um comprimento de prefixo cíclico menor pode ser selecionado para cada transmissão local, e um comprimento de prefixo cíclico maior pode ser selecionado para cada transmissão de área ampla. os comprimentos de prefixo cíclico selecionados podem ser sinalizados para os terminais. as transmissões são processadas (moduladas pela ofdm, por exemplo) com base nos comprimentos de prefixo cíclico selecionados. os comprimentos de prefixo cíclico podem ser selecionados periodicamente, como, por exemplo, em cada super-quadro.
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公开(公告)号：MY146700A
公开(公告)日：2012-09-14
申请号：MYPI20052550
申请日：2005-06-03
Applicant: QUALCOMM INC
Inventor： AVNEESH AGRAWAL , MALLADI DURGA P , ANASTASIOS STAMOULIS , ASHOK MANTRAVADI , RAMASWAMY MURALI
Abstract: TO TRANSMIT DATA IN A MANNER TO MITIGATE THE DELETERIOUS EFFECTS OF DELAY SPREAD, THE EXPECTED COVERAGE AREAS (102A, 102B, 102C, 102D) FOR MULTIPLE TRANSMISSIONS TO BE SENT IN MULTIPLE TIME SLOTS ARE INITIALLY DETERMINED. CYCLIC PREFIX LENGTHS FOR THESE TRANSMISSIONS ARE SELECTED BASED ON THE EXPECTED COVERAGE AREAS. THE CYCLIC PREFIX LENGTH FOR EACH TRANSMISSION MAY BE SELECTED FROM AMONG A SET OF ALLOWED CYCLIC PREFIX LENGTHS BASED ON THE EXPECTED COVERAGE AREA FOR THAT TRANSMISSION, THE PILOT STAGGERING USED FOR THE TRANSMISSION, AND SO ON. FOR EXAMPLE, A SHORTER CYCLIC PREFIX LENGTH MAY BE SELECTED FOR EACH LOCAL TRANSMISSION, AND A LONGER CYCLIC PREFIX LENGTH MAY BE SELECTED FOR EACH WIDE-AREA TRANSMISSION. THE SELECTED CYCLIC PREFIX LENGTHS MAY BE SIGNALED TO THE TERMINALS (120). THE TRANSMISSIONS ARE PROCESSED (E.G., OFDM MODULATED) BASED ON THE SELECTED CYCLIC PREFIX LENGTHS. THE CYCLIC PREFIX LENGTHS MAY BE SELECTED PERIODICALLY, E.G., IN EACH SUPER-FRAME.
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Patent Agency Ranking
公开(公告)号：MY139873A
公开(公告)日：2009-11-30
申请号：MYPI20044339
申请日：2004-10-21
Applicant: QUALCOMM INC
Inventor： RAMASWAMY MURALI , FUYUN LING , RAJIV VIJAYAN , WALKER KENT G , ASHOK MANTRAVADI
Abstract: TO BROADCAST DIFFERENT TYPES OF TRANSMISSION HAVING DIFFERENT TIERS OF COVERAGE IN A WIRELESS BROADCAST NETWORK, EACH BASE STATION PROCESSES DATA FOR A WIDE-AREA TRANSMISSION IN ACCORDANCE WITH A FIRST MODE (OR CODING AND MODULATION SCHEME) TO GENERATE DATA SYMBOLS FOR THE WIDE-AREA TRANSMISSION AND PROCESSES DATA FOR A LOCALTRANSMISSION IN ACCORDANCE WITH A SECOND MODE TO GENERATE DATA SYMBOLS FOR THE LOCAL TRANSMISSION. THE FIRST AND SECOND MODES ARE SELECTED BASED ON THE DESIRED COVERAGE FOR WIDE-AREA AND LOCAL TRANSMISSIONS, RESPECTIVELY. THE BASE STATION ALSO GENERATES PILOTS AND OVERHEAD INFORMATION FOR LOCAL AND WIDE-AREA TRANSMISSIONS. THE DATA, PILOTS AND OVERHEAD INFORMATION FOR LOCAL AND WIDE-AREA TRANSMISSIONS ARE MULTIPLEXED ONTO THEIR TRANSMISSION SPANS, WHICH MAY BE DIFFERENT SETS OF FREQUENCY SUBBANDS, DIFFERENT TIME SEGMENTS, OR DIFFERENT GROUPS OF SUBBANDS IN DIFFERENT TIME SEGMENTS. MORE THAN TWO DIFFERENT TYPES OF TRANSMISSION MAY ALSO BE MULTIPLEXED AND BROADCAST.
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公开(公告)号：BR112012024692A2
公开(公告)日：2020-08-25
申请号：BR112012024692
申请日：2011-03-30
Applicant: QUALCOMM INC
Inventor： ASHOK MANTRAVADI , JIBING WANG , JOEL BENJAMIN LINSKY , PRANAV DAYAL , TAMER A KADOUS
IPC: H04W16/14
Abstract: método e aparelho para coexistência multi-rádio interferência entre tecnologias de acesso rádio (rats) potencialmente conflitantes em um dispositivo sem fio pode ser gerenciada através de um gerenciador de coexistência que permite comunicação usando uma primeira rat ativa (por exemplo, evolução de longo prazo (lte)) e comunicação com uma segunda rat ativa (por exemplo, rede de área local sem fio (wlan)) quando a primeira rat não é programada para se comunicar durante uma participação de tempo de uplink. comunicações por um rádio wlan podem ser con-troladas usando um modo de economia de energia. comunicações wlan podem ser temporizadas de modo que sinais de downlink (tais como dados ou mensagens de confir-mação) para o rádio wlan sejam recebidas durante um subquadro de uplink inativo para um rádio lte. comunicações wlan podem também ser temporizadas de modo que si-nais de downlink para o rádio wlan sejam recebidos durante tempos de downlink progra-mados para um rádio lte.
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公开(公告)号：AU2011253578A1
公开(公告)日：2011-12-15
申请号：AU2011253578
申请日：2011-11-22
Applicant: QUALCOMM INC
Inventor： PRASAD MALLADI DURGA , AVNEESH AGRAWAL , RAMASWAMY MURALI , ASHOK MANTRAVADI , ANASTASIOS STAMOULIS
Abstract: Techniques to transmit data with cyclic delay diversity and pilot staggering are described. For cyclic delay diversity, OFDM symbols having different cyclic delay durations are generated. The cyclic 5 delay durations for the OFDM symbols may be selected to be time varying with respect to the cyclic delay durations for OFDM symbols transmitted by a neighboring base station. An FDM pilot is generated and multiplexed on multiple sets of subbands in different symbol periods. Waveforms for a second radio technology (e.g., W-CDMA) may be generated for data to be transmitted with this radio technology. The OFDM symbols are multiplexed onto time slots used for OFDM, and the 10 waveforms for the second radio technology are multiplexed onto time slots used for this radio technology. One or multiple modulated signals may be generated based on the multiplexed OFDM symbols and waveforms. Each modulated signal is transmitted from a respective antenna. Start 800 Generate OFDM symbols having different cyclic delay durations Generate and multiplex an FDM pilot on multiple sets of subbands in different symbol periods Generate W-CDMA waveforms for data to be transmitted with W-CDMA Multiplex the OFDM symbols onto time slots used for OFDM Multiplex the W-CDMA waveforms onto time slots used for W-CDMA Generate one or multiple modulated signals based on the multiplexed OFDM symbols and W-CDMA waveforms '824 Transmit each modulated signal from a respective antenna End
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公开(公告)号：AU2011253562A1
公开(公告)日：2011-12-15
申请号：AU2011253562
申请日：2011-11-22
Applicant: QUALCOMM INC
Inventor： PRASAD MALLADI DURGA , AVNEESH AGRAWAL , RAMASWAMY MURALI , ASHOK MANTRAVADI , ANASTASIOS STAMOULIS
Abstract: Techniques to transmit data with cyclic delay diversity and pilot staggering are described. For cyclic delay diversity, OFDM symbols having different cyclic delay durations are generated. The cyclic 5 delay durations for the OFDM symbols may be selected to be time varying with respect to the cyclic delay durations for OFDM symbols transmitted by a neighboring base station. An FDM pilot is generated and multiplexed on multiple sets of subbands in different symbol periods. Waveforms for a second radio technology (e.g.. W-CDMA) may be generated for data to be transmitted with this radio technology. The OFDM symbols are multiplexed onto time slots used for OFDM. and the 10 waveforms for the second radio technology are multiplexed onto time slots used for this radio technology. One or multiple modulated signals may be generated based on the multiplexed OFDM symbols and waveforms. Each modulated signal is transmitted from a respective antenna. Start 800 Generate OFDM symbols having different cyclic delay durations ' 814 Generate and multiplex an FDM pilot on multiple sets of subbands in different symbol periods Generate W-CDMA waveforms for data to be transmitted with W-CDMA "818 Multiplex the OFDM symbols onto time slots used for OFDM ,820 Multiplex the W-CDMA waveforms onto time slots used for W-CDMA Generate one or multiple modulated signals based on the multiplexed OFDM symbols and W-CDMA waveforms t824 Transmit each modulated signal from a respective antenna End
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公开(公告)号：HK1098607A1
公开(公告)日：2007-07-20
申请号：HK07104803
申请日：2007-05-04
Applicant: QUALCOMM INC
Inventor： ASHOK MANTRAVADI , AAMOD KHANDEKAR , EDWARD HARRISON TEAGUE , TAMER KADOUS
IPC: H04L20100101 , H04L25/02
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