DYNAMIC SECTOR PROCESSING IN SPREAD COMMUNICATION SYSTEM

    公开(公告)号:JP2002186018A

    公开(公告)日:2002-06-28

    申请号:JP2001312606

    申请日:2001-10-10

    Applicant: QUALCOMM INC

    Abstract: PROBLEM TO BE SOLVED: To provide a spread spectrum cell communication system and method that can change a degree of concentration of communication channels in response to a change in the distribution of users in the system and adjust the size of a specific user sector corresponding to a communication channel request in the sector. SOLUTION: This invention provides a method of a wireless communication system having antennas which are respectively directed to one of coverage areas in one viewpoint. This method includes steps where a 1st modulation signal is sent through a 1st antenna among the antennas, the 1st modulation information signal is fed to a phase delay element, where the phase of the 1st modulation information signal is delayed to obtain the 1st modulation information signal whose phase is delayed, and the 1st modulation information signal whose phase is delayed is transmitted through a 2nd antenna among the antennas.

    DYNAMIC SECTORIZATION IN A SPREAD SPECTRUM COMMUNICATION SYSTEM

    公开(公告)号:CA2183258A1

    公开(公告)日:1995-08-17

    申请号:CA2183258

    申请日:1995-02-14

    Applicant: QUALCOMM INC

    Abstract: A system and method for dynamically varying traffic channel sectorization within a spread spectrum communication system is disclosed herein. In a preferred implementation the system is operative to convey information to at least one specified user in a spread spectrum communication system and includes a pseudorandom code generator (50) for generating, at a predetermined chip rate, a pseudorandom noise (PN) signal of a predetermined PN code. The PN signal is then combined with a first information signal in a spread spectrum transmitter (42) to provide a PN spread information signal. The system further includes at least one additional spread spectrum transmitter (44, 46) each for receiving through a respective delay element (52, 54) delayed versions of the PN signal for providing at least one additional modulation signal. A switching transmission network (74) is disposed to selectively transmit via antennas (85, 86) the first and additional modulation signals respectively to a first and at least one additional coverage area. Selective transmission of the first and the at least one additional modulation signal results in variation in size of a first user sector. The first user sector is associated with a first set of traffic channels, one of which is allocated to the specified user. The system may also be configured to selectively receive, and coherently combine, first and second modulation signals from first and second coverage areas. I

    DYNAMIC SECTORIZATION IN A SPREAD SPECTRUM COMMUNICATION SYSTEM
    10.
    发明申请
    DYNAMIC SECTORIZATION IN A SPREAD SPECTRUM COMMUNICATION SYSTEM 审中-公开
    传播频谱通信系统中的动态分区

    公开(公告)号:WO9522210A3

    公开(公告)日:1995-11-02

    申请号:PCT/US9501831

    申请日:1995-02-14

    Applicant: QUALCOMM INC

    CPC classification number: H04W16/06 H04W16/24 H04W16/28

    Abstract: A system and method for dynamically varying traffic channel sectorization within a spread spectrum communication system is disclosed herein. In a preferred implementation the system is operative to convey information to at least one specified user in a spread spectrum communication system and includes a pseudorandom code generator (50) for generating, at a predetermined chip rate, a pseudorandom noise (PN) signal of a predetermined PN code. The PN signal is then combined with a first information signal in a spread spectrum transmitter (42) to provide a PN spread information signal. The system further includes at least one additional spread spectrum transmitter (44, 46) each for receiving through a respective delay element (52, 54) delayed versions of the PN signal for providing at least one additional modulation signal. A switching transmission network (74) is disposed to selectively transmit via antennas (85, 86) the first and additional modulation signals respectively to a first and at least one additional coverage area. Selective transmission of the first and the at least one additional modulation signal results in variation in size of a first user sector. The first user sector is associated with a first set of traffic channels, one of which is allocated to the specified user. The system may also be configured to selectively receive, and coherently combine, first and second modulation signals from first and second coverage areas.

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