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    System and method for interleaving
    42.
    发明专利
    System and method for interleaving 未知

    公开(公告)号：AU2005267809B2

    公开(公告)日：2010-02-11

    申请号：AU2005267809

    申请日：2005-07-29

    Applicant: QUALCOMM INC

    Inventor： WANG MICHAEL MAO ,  LING FUYUN ,  MURALI RAMASWAMY ,  VIJAYAN RAJIV

    Abstract: A method for improving frequency diversity in an OFDM system using interleaved interlaces for constellation symbol interleaving comprises interleaving a number of subcarriers of an interlace in a bit reversal fashion and interleaving a number of interlaces in the bit reversal fashion.

    Multicarrier modulation system with cyclic delay diversity
    43.
    发明专利
    Multicarrier modulation system with cyclic delay diversity 未知

    公开(公告)号：AU2009217481A1

    公开(公告)日：2009-10-15

    申请号：AU2009217481

    申请日：2009-09-23

    Applicant: QUALCOMM INC

    Inventor： MANTRAVADI ASHOK ,  STAMOULIS ANASTASIOS ,  MALLADI DURGA PRASAD ,  MURALI RAMASWAMY ,  AGRAWAL AVNEESH

    IPC: H04L1/00 ,  H04L5/02 ,  H04L27/26 ,  H04W88/10 ,  H04W92/10

    Abstract: Frame structures and transmission techniques for a wireless communication system are described. In one frame structure, a super-frame includes multiple outer-frames, and each outer-frame includes multiple frames, and each frame includes multiple time slots. The time slots in each super-frame are allocated for downlink and uplink and for different radio technologies (e.g., W-CDMA and OFDM) based on loading. Each physical channel is allocated at least one time slot in at least one frame of each outer-frame in the super-frame. An OFDM waveform is generated for each downlink OFDM slot and multiplexed onto the slot. A W-CDMA waveform is generated for each downlink W-CDMA slot and multiplexed onto the slot. A modulated signal is generated for the multiplexed W-CDMA and OFDM waveforms and transmitted on the downlink. Each physical channel is transmitted in bursts. The slot allocation and coding and modulation for each physical channel can change for each super-frame.

    Multiplexing of W-CDMA and OFDM signals in a wireless communication system
    44.
    发明专利
    Multiplexing of W-CDMA and OFDM signals in a wireless communication system 未知

    公开(公告)号：AU2005253597C1

    公开(公告)日：2009-10-01

    申请号：AU2005253597

    申请日：2005-06-03

    Applicant: QUALCOMM INC

    Inventor： STAMOULIS ANASTASIOS ,  AGRAWAL AVNEESH ,  MANTRAVADI ASHOK ,  MURALI RAMASWAMY ,  MALLADI DURGA P

    IPC: H04L5/02 ,  H04L1/00 ,  H04L27/26 ,  H04W88/10 ,  H04W92/10

    Abstract: Frame structures and transmission techniques for a wireless communication system are described. In one frame structure, a super-frame includes multiple outer-frames, and each outer-frame includes multiple frames, and each frame includes multiple time slots. The time slots in each super-frame are allocated for downlink and uplink and for different radio technologies (e.g., W-CDMA and OFDM) based on loading. Each physical channel is allocated at least one time slot in at least one frame of each outer-frame in the super-frame. An OFDM waveform is generated for each downlink OFDM slot and multiplexed onto the slot. A W-CDMA waveform is generated for each downlink W-CDMA slot and multiplexed onto the slot. A modulated signal is generated for the multiplexed W-CDMA and OFDM waveforms and transmitted on the downlink. Each physical channel is transmitted in bursts. The slot allocation and coding and modulation for each physical channel can change for each super-frame.

    Wireless communication system with configurable cyclic prefix length
    45.
    发明专利
    Wireless communication system with configurable cyclic prefix length 未知

    公开(公告)号：AU2005253596C1

    公开(公告)日：2009-08-13

    申请号：AU2005253596

    申请日：2005-06-03

    Applicant: QUALCOMM INC

    Inventor： MANTRAVADI ASHOK ,  AGRAWAL AVNEESH ,  MALLADI DURGA P ,  STAMOULIS ANASTASIOS ,  MURALI RAMASWAMY

    IPC: H04L1/00 ,  H04L5/02 ,  H04L27/26 ,  H04W88/10 ,  H04W92/10

    Abstract: Frame structures and transmission techniques for a wireless communication system are described. In one frame structure, a super-frame includes multiple outer-frames, and each outer-frame includes multiple frames, and each frame includes multiple time slots. The time slots in each super-frame are allocated for downlink and uplink and for different radio technologies (e.g., W-CDMA and OFDM) based on loading. Each physical channel is allocated at least one time slot in at least one frame of each outer-frame in the super-frame. An OFDM waveform is generated for each downlink OFDM slot and multiplexed onto the slot. A W-CDMA waveform is generated for each downlink W-CDMA slot and multiplexed onto the slot. A modulated signal is generated for the multiplexed W-CDMA and OFDM waveforms and transmitted on the downlink. Each physical channel is transmitted in bursts. The slot allocation and coding and modulation for each physical channel can change for each super-frame.

    Frequency division multiplexing of multiple data streams in a wireless multi-carrier communication system
    46.
    发明专利
    Frequency division multiplexing of multiple data streams in a wireless multi-carrier communication system 未知

    公开(公告)号：AU2004307449B2

    公开(公告)日：2008-11-20

    申请号：AU2004307449

    申请日：2004-10-21

    Applicant: QUALCOMM INC

    Inventor： MURALI RAMASWAMY ,  VIJAYAN RAJIV ,  KRISHNAMOORTHI RAGHURAMAN ,  WALKER KENT G

    IPC: H04L1/00 ,  H04L5/02 ,  H04L27/26

    Abstract: Techniques for multiplexing multiple data streams using frequency division multiplexing (FDM) in an OFDM system are described. M disjoint "interlaces" are formed with U usable subbands. Each interlace is a different set of S subbands, where . The subbands for each interlace are interlaced with the subbands for each of the other interlaces. M slots may be defined for each symbol period and assigned slot indices 1 through M. The slot indices may be mapped to interlaces such that (1) frequency diversity is achieved for each slot index and (2) the interlaces used for pilot transmission have varying distances to the interlaces used for each slot index, which improves channel estimation performance. Each data stream may be processed as data packets of a fixed size, and different numbers of slots may be used for each data packet depending on the coding and modulation scheme used for the data packet.

    Local and wide-area transmissions in a wireless broadcast network
    47.
    发明专利
    Local and wide-area transmissions in a wireless broadcast network 未知

    公开(公告)号：AU2004307128C1

    公开(公告)日：2008-10-09

    申请号：AU2004307128

    申请日：2004-10-22

    Applicant: QUALCOMM INC

    Inventor： LING FUYUN ,  MANTRAVADI ASHOK ,  MURALI RAMASWAMY ,  WALKER KENT G ,  VIJAYAN RAJIV ,  SUBRAMANIAM ANAND D

    IPC: H04L12/18 ,  H04L12/56 ,  H04W74/04 ,  H04W88/08

    Abstract: A method of broadcasting data in a wireless broadcast network, comprising multiplexing data for a wide-area transmission onto a first transmission span, the wide-area transmission being sent from a plurality of transmitters in the network; multiplexing data for a local transmission onto a second transmission span, wherein the multiplexing is onto frequency subbands pseudo-randomly selected from among all usable frequency subbands and the local transmission being sent from a subset of the plurality of transmitters; selecting the first and second transmission spans based on an amount of data to broadcast for the wide-area transmission and an amount of data to broadcast for the local transmission; and broadcasting the local and wide-area transmissions via a wireless link, wherein the data for the wide-area transmission and the data for the local transmission are time division multiplexed (TDM) at each base station, and wherein the first and second transmission spans are first and second time segments, respectively, of a frame of a predetermined time duration as well as a corresponding system.

    48.
    发明专利
    未知

    公开(公告)号：BRPI0511809A

    公开(公告)日：2008-01-15

    申请号：BRPI0511809

    申请日：2005-06-03

    Applicant: QUALCOMM INC

    Inventor： AGRAWAL AVNEESH ,  MALLADI DURGA P ,  STAMOULIS ANASTASIOS ,  MANTRAVADI ASHOK ,  MURALI RAMASWAMY

    IPC: H04L5/02 ,  H04L1/00 ,  H04L27/26 ,  H04W88/10 ,  H04W92/10

    Abstract: Frame structures and transmission techniques for a wireless communication system are described. In one frame structure, a super-frame includes multiple outer-frames, and each outer-frame includes multiple frames, and each frame includes multiple time slots. The time slots in each super-frame are allocated for downlink and uplink and for different radio technologies (e.g., W-CDMA and OFDM) based on loading. Each physical channel is allocated at least one time slot in at least one frame of each outer-frame in the super-frame. An OFDM waveform is generated for each downlink OFDM slot and multiplexed onto the slot. A W-CDMA waveform is generated for each downlink W-CDMA slot and multiplexed onto the slot. A modulated signal is generated for the multiplexed W-CDMA and OFDM waveforms and transmitted on the downlink. Each physical channel is transmitted in bursts. The slot allocation and coding and modulation for each physical channel can change for each super-frame.

    50.
    发明专利
    未知

    公开(公告)号：NO20070990L

    公开(公告)日：2007-04-30

    申请号：NO20070990

    申请日：2007-02-21

    Applicant: QUALCOMM INC

    Inventor： VIJAYAN RAJIV ,  LING FUYUN ,  MURALI RAMASWAMY ,  WANG MICHAEL MAO

    IPC: H04J11/00 ,  H03M13/39

    Abstract: A method for improving frequency diversity in an OFDM system using interleaved interlaces for constellation symbol interleaving comprises interleaving a number of subcarriers of an interlace in a bit reversal fashion and interleaving a number of interlaces in the bit reversal fashion.

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