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公开(公告)号：MY161833A
公开(公告)日：2017-05-15
申请号：MYPI20052545
申请日：2005-06-03
Applicant: QUALCOMM INC
Inventor： AGRAWAL AVNEESH , MALLADI DURGA P , STAMOULIS ANASTASIOS , MANTRAVADI ASHOK , MURALI RAMASWAMY
Abstract: FRAME STRUCTURES AND TRANSMISSION TECHNIQUES FOR A WIRELESS COMMUNICATION SYSTEM (100) ARE DESCRIBED. IN ONE FRAME STRUCTURE (200, 300), 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.
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82.发明专利
公开(公告)号：AU2004302856B2
公开(公告)日：2010-04-29
申请号：AU2004302856
申请日：2004-09-02
Applicant: QUALCOMM INC
Inventor： WALKER KENT , KHANDEKAR AAMOD , VIJAYAN RAJIV , LING FUYUN , MURALI RAMASWAMY
IPC: H04J11/00 , H04B7/00 , H04H20/00 , H04J3/24 , H04L1/00 , H04L5/02 , H04L5/06 , H04L12/28 , H04L25/02 , H04L27/26 , H04W4/06 , H04W28/06 , H04W72/00 , H04W72/04
Abstract: Techniques for multiplexing and transmitting multiple data streams are described. Transmission of the multiple data streams occurs in “super-frames”. Each super-frame has a predetermined time duration and is further divided into multiple (e.g., four) frames. Each data block for each data stream is outer encoded to generate a corresponding code block. Each code block is partitioned into multiple subblocks, and each data packet in each code block is inner encoded and modulated to generate modulation symbols for the packet. The multiple subblocks for each code block are transmitted in the multiple frames of the same super-frame, one subblock per frame. Each data stream is allocated a number of transmission units in each super-frame and is assigned specific transmission units to achieve efficient packing. A wireless device can select and receive individual data streams.
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83.发明专利
公开(公告)号：CA2543771C
公开(公告)日：2010-04-20
申请号：CA2543771
申请日：2004-10-21
Applicant: QUALCOMM INC
Inventor： VIJAYAN RAJIV , WALKER GORDON KENT , KRISHNAMOORTHI RAGHURAMAN , MURALI RAMASWAMY
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.
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公开(公告)号：SG155171A1
公开(公告)日：2009-09-30
申请号：SG2009050899
申请日：2005-07-29
Applicant: QUALCOMM INC
Inventor： WANG MICHAEL MAO , LING FUYUN , MURALI RAMASWAMY , VIJAYAN RAJIV
Abstract: A system and method for frequency diversity uses interleaving. Subcarriers of an interlace are interleaved in a bit reversal fashion and the interlaces are interleaved in the bit reversal fashion.
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公开(公告)号：AU2005253597B2
公开(公告)日：2009-03-26
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
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.
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Patent Agency Ranking
公开(公告)号：AU2005253596B2
公开(公告)日：2009-03-26
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
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.
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公开(公告)号：AU2004307138C1
公开(公告)日：2008-11-13
申请号：AU2004307138
申请日：2004-10-21
Applicant: QUALCOMM INC
Inventor： LANE RICHARD D , VIJAYAN RAJIV , MURALI RAMASWAMY , WALKER KENT G
IPC: H04L12/28 , H04B7/00 , H04B7/216 , H04L20060101
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公开(公告)号：AU2004307128B2
公开(公告)日：2008-03-20
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
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.
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公开(公告)号：HK1104715A1
公开(公告)日：2008-01-18
申请号：HK07112844
申请日：2007-11-26
Applicant: QUALCOMM INC
Inventor： AGRAWAL AVNEESH , MALLADI DURGA P , STAMOULIS ANASTASIOS , MANTRAVADI ASHOK , MURALI RAMASWAMY
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.
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公开(公告)号：HK1104714A1
公开(公告)日：2008-01-18
申请号：HK07112837
申请日：2007-11-26
Applicant: QUALCOMM INC
Inventor： AGRAWAL AVNEESH , MALLADI DURGA P , STAMOULIS ANASTASIOS , MANTRAVADI ASHOK , MURALI RAMASWAMY
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.
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