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89 条记录 (耗时 0.019 秒)

    METHOD AND APPARATUS FOR RECEIVING BROADCAST INFORMATION IN AN OFDM COMMUNICATION SYSTEM
    11.
    发明申请
    METHOD AND APPARATUS FOR RECEIVING BROADCAST INFORMATION IN AN OFDM COMMUNICATION SYSTEM 有权

    公开(公告)号：US20210195556A1

    公开(公告)日：2021-06-24

    申请号：US17186306

    申请日：2021-02-26

    申请人： Neo Wireless LLC

    发明人： Haiming Huang ,  Xiaodong Li ,  Titus Lo ,  Kemin Li

    IPC分类号： H04W72/00 ,  H04L5/00 ,  H04W72/04

    摘要： A method for receiving broadcast information in an OFDM communication system may comprise receiving, by a mobile station, a periodically broadcast scheduling message from a base station which indicates for each type of a plurality of types of broadcast information included in broadcast information, a pattern of frames to monitor for the type of broadcast information and indicates a length of time to monitor. The mobile station may monitor for information corresponding to at least one of the plurality of types of broadcast information, based on the periodically broadcast scheduling message.

    CHANNEL PROBING SIGNAL FOR A BROADBAND COMMUNICATION SYSTEM
    12.
    发明申请
    CHANNEL PROBING SIGNAL FOR A BROADBAND COMMUNICATION SYSTEM 有权

    公开(公告)号：US20210058281A1

    公开(公告)日：2021-02-25

    申请号：US17092786

    申请日：2020-11-09

    申请人： NEO WIRELESS LLC

    发明人： Xiaodong Li ,  Titus Lo ,  Kemin Li ,  Haiming Huang

    IPC分类号： H04L27/26 ,  H04L5/00 ,  H04L25/03 ,  H04L27/00 ,  H04B1/707 ,  H04B1/711

    摘要： In a broadband wireless communication system, a spread spectrum signal is intentionally overlapped with an OFDM signal, in a time domain, a frequency domain, or both. The OFDM signal, which inherently has a high spectral efficiency, is used for carrying broadband data or control information. The spread spectrum signal, which is designed to have a high spread gain for overcoming severe interference, is used for facilitating system functions such as initial random access, channel probing, or short messaging. Methods and techniques are devised to ensure that the mutual interference between the overlapped signals is minimized to have insignificant impact on either signal and that both signals are detectable with expected performance by a receiver.

    METHOD AND SYSTEM FOR MULTI-CARRIER PACKET COMMUNICATION WITH REDUCED OVERHEAD
    13.
    发明申请
    METHOD AND SYSTEM FOR MULTI-CARRIER PACKET COMMUNICATION WITH REDUCED OVERHEAD 有权

    公开(公告)号：US20210006373A1

    公开(公告)日：2021-01-07

    申请号：US17024089

    申请日：2020-09-17

    申请人： Neo Wireless LLC

    发明人： Xiaodong Li ,  Haiming Huang ,  Titus Lo ,  Ruifeng Wang

    IPC分类号： H04L5/00 ,  H04L27/26 ,  H04L1/00 ,  H04W72/04 ,  H04J11/00 ,  H04W52/14

    摘要： A method and system for minimizing the control overhead in a multi-carrier wireless communication network that utilizes a time-frequency resource is disclosed. In some embodiments, one or more zones in the time-frequency resource are designated for particular applications, such as a zone dedicated for voice-over-IP (VoIP) applications. By grouping applications of a similar type together within a zone, a reduction in the number of bits necessary for mapping a packet stream to a portion of the time-frequency resource can be achieved. In some embodiments, modular coding schemes associated with the packet streams may be selected that further reduce the amount of necessary control information. In some embodiments, packets may be classified for transmission in accordance with application type, QoS parameters, and other properties. In some embodiments, improved control messages may be constructed to facilitate the control process and minimize associated overhead.

    CHANNEL PROBING SIGNAL FOR A BROADBAND COMMUNICATION SYSTEM
    14.
    发明申请
    CHANNEL PROBING SIGNAL FOR A BROADBAND COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：US20200313948A1

    公开(公告)日：2020-10-01

    申请号：US16902740

    申请日：2020-06-16

    申请人： NEO WIRELESS LLC

    发明人： Xiaodong Li ,  Titus Lo ,  Kemin Li ,  Haiming Huang

    IPC分类号： H04L27/26 ,  H04L5/00 ,  H04L25/03 ,  H04L27/00 ,  H04B1/707 ,  H04B1/711

    摘要： In a broadband wireless communication system, a spread spectrum signal is intentionally overlapped with an OFDM signal, in a time domain, a frequency domain, or both. The OFDM signal, which inherently has a high spectral efficiency, is used for carrying broadband data or control information. The spread spectrum signal, which is designed to have a high spread gain for overcoming severe interference, is used for facilitating system functions such as initial random access, channel probing, or short messaging. Methods and techniques are devised to ensure that the mutual interference between the overlapped signals is minimized to have insignificant impact on either signal and that both signals are detectable with expected performance by a receiver.

    MULTIPLE-ANTENNA SYSTEM FOR CELL-SPECIFIC AND USER-SPECIFIC TRANSMISSION
    15.
    发明申请
    MULTIPLE-ANTENNA SYSTEM FOR CELL-SPECIFIC AND USER-SPECIFIC TRANSMISSION 审中-公开

    公开(公告)号：US20200178088A1

    公开(公告)日：2020-06-04

    申请号：US16788872

    申请日：2020-02-12

    申请人： Neo Wireless LLC

    发明人： Titus Lo ,  Xiaodong Li

    IPC分类号： H04W16/28 ,  H04B7/06 ,  H04W72/04 ,  H04W56/00 ,  H04L27/26 ,  H04L5/00 ,  H01Q1/24 ,  H01Q25/00

    摘要： A reception method and apparatus for use in a multi-cell orthogonal frequency division multiple access (OFDMA) wireless system. In a unicast receive mode during a first receive time period, a first group of orthogonal frequency division multiplexing (OFDM) symbols is received by a mobile device from multiple of a plurality of antennas at a serving base station. In a single-frequency-network (SFN) receive mode during a second receive time period, a second group of OFDM symbols is received by the mobile device from one of a plurality of antennas at the serving base station. The transition between the first receive time period and the second receive time period occurs during a cyclic prefix or a cyclic postfix between OFDM symbols, and the plurality of antennas produce a first beam pattern during the unicast receive mode and a second beam pattern during the SFN receive mode.