METHOD AND SYSTEM FOR MINIMIZING OVERLAP NULLING IN SWITCHED BEAMS

    公开(公告)号:AU2003299947A1

    公开(公告)日:2004-07-29

    申请号:AU2003299947

    申请日:2003-12-23

    Applicant: MOTOROLA INC

    Abstract: A wireless system, which minimizes nulls within the wireless system, while simultaneously providing diversity. A wireless system will now have increased capacity and coverage due to an enhanced signal to interference ratio in the areas of beam overlap. The system uses time or frequency offset on the signals input to an antenna to minimize interference in the regions of beam overlap. Additionally, polarization diversity can be introduced using Butler Matrices in conjunction with array elements to enhance the interference reduction.

    Method and apparatus for using switched multibeam antennas in a multiple access communication system

    公开(公告)号:AU2003277150A8

    公开(公告)日:2004-04-23

    申请号:AU2003277150

    申请日:2003-10-01

    Applicant: MOTOROLA INC

    Inventor: FRANK COLIN

    Abstract: In order to increase a capacity, or a number of mobile stations (MSs), or users, that may engaged in concurrent communication sessions, a communication system is provided that schedules a different MS, or user, in each beam of multiple predetermined, fixed beams associated with a coverage area, in particular a sector. By simultaneously scheduling a user in each beam of the multiple beams, a performance and throughput of communication system is significantly increased over the prior art. In one embodiment of the present invention, a portion of a shared communication channel that is allocated to each MS is concurrently transmitted to each MS via a beam associated with the MS. In other embodiments of the present invention, voice channels, data channels, and control channels associated with each MS scheduled in a beam may be concurrently transmitted to each MS via the beam associated with the MS.

    13.
    发明专利
    未知

    公开(公告)号:ITRM980585D0

    公开(公告)日:1998-09-11

    申请号:ITRM980585

    申请日:1998-09-11

    Applicant: MOTOROLA INC

    Abstract: A RAKE receiver (112) includes a plurality of fingers (122, 124, 126, 128). Each finger includes a demodulator (402) for demodulating a ray of a multipath signal and a time tracking circuit (404) for controlling the time position of the finger in accordance with time position of the ray. A low delay-spread condition is detected and the positions of two adjacent fingers are controlled to prevent convergence of two or more fingers about a common time position. By maintaining finger timing separation, path diversity is exploited by the RAKE receiver even during the low delay-spread condition to improve receiver performance.

    METHOD AND APPARATUS FOR USING SWITCHED MULTIBEAM ANTENNAS IN A MULTIPLE ACCESS COMMUNICATION SYSTEM

    公开(公告)号:AU2003277150A1

    公开(公告)日:2004-04-23

    申请号:AU2003277150

    申请日:2003-10-01

    Applicant: MOTOROLA INC

    Inventor: FRANK COLIN

    Abstract: In order to increase a capacity, or a number of mobile stations (MSs), or users, that may engaged in concurrent communication sessions, a communication system is provided that schedules a different MS, or user, in each beam of multiple predetermined, fixed beams associated with a coverage area, in particular a sector. By simultaneously scheduling a user in each beam of the multiple beams, a performance and throughput of communication system is significantly increased over the prior art. In one embodiment of the present invention, a portion of a shared communication channel that is allocated to each MS is concurrently transmitted to each MS via a beam associated with the MS. In other embodiments of the present invention, voice channels, data channels, and control channels associated with each MS scheduled in a beam may be concurrently transmitted to each MS via the beam associated with the MS.

    METHOD AND APPARATUS FOR USING SWITCHED MULTIBEAM ANTENNAS IN A MULTIPLE ACCESS COMMUNICATION SYSTEM
    15.
    发明公开
    METHOD AND APPARATUS FOR USING SWITCHED MULTIBEAM ANTENNAS IN A MULTIPLE ACCESS COMMUNICATION SYSTEM 有权
    里使用方法和设备交换式多天线多址通信系统

    公开(公告)号:EP1550327A4

    公开(公告)日:2009-02-11

    申请号:EP03799361

    申请日:2003-10-01

    Applicant: MOTOROLA INC

    Inventor: FRANK COLIN

    CPC classification number: H04B7/0408 H04B7/0491 H04W52/262 H04W52/42

    Abstract: In order to increase a capacity, or a number of mobile stations (MSs), or users, that may engaged in concurrent communication sessions, a communication system is provided that schedules a different MS, or user, in each beam of multiple predetermined, fixed beams associated with a coverage area, in particular a sector. By simultaneously scheduling a user in each beam of the multiple beams, a performance and throughput of communication system is significantly increased over the prior art. In one embodiment of the present invention, a portion of a shared communication channel that is allocated to each MS is concurrently transmitted to each MS via a beam associated with the MS. In other embodiments of the present invention, voice channels, data channels, and control channels associated with each MS scheduled in a beam may be concurrently transmitted to each MS via the beam associated with the MS.

    Abstract translation: 为了增加容量,或多个移动站(MS),或用户的,并可以从事并发通信会话,提供了一种通信系统做了调度不同的MS,或用户,在多个预定的每个梁,固定 一个覆盖区域相关联的横梁,特别是部门。 通过同时在调度所述多个光束的每个光束用户,性能和吞吐量通信系统的显着增加相对于现有技术。 在本发明一个实施例,共享的通信信道的一部分也被分配给每个MS是经由与所述MS相关联的光束兼反mitted给每个MS。 与安排在光束每个MS有关本发明的其他实施例中,话音信道,数据信道,和控制信道可以同时反式mitted经由与MS相关联的波束的每个MS。

    EMPLOYING CELL-SPECIFIC AND USER ENTITY-SPECIFIC REFERENCE SYMBOLS IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS
    16.
    发明申请
    EMPLOYING CELL-SPECIFIC AND USER ENTITY-SPECIFIC REFERENCE SYMBOLS IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS 审中-公开
    在正交频分多路访问中使用细胞特异性和用户实体参考符号

    公开(公告)号:WO2010053664A2

    公开(公告)日:2010-05-14

    申请号:PCT/US2009060569

    申请日:2009-10-14

    Abstract: A method, a network base station, and a user communication device for transmitting data on an orthogonal frequency-division multiple access carrier are disclosed. A network base station 106 may have a common antenna set 110 to transmit on a subcarrier via a first effective channel able to be constructed based on at least one common reference symbol. The network base station 106 may have a dedicated antenna set 112 to transmit on a subcarrier via a second effective channel able to be estimated based on at least one dedicated reference symbol. The user equipment device 102 may demodulate a data transmission using the at least one common reference symbol and the at least one dedicated reference symbol.

    Abstract translation: 公开了一种在正交频分多址载波上发送数据的方法,网络基站和用户通信装置。 网络基站106可以具有公共天线组110,以经由能够基于至少一个公共参考符号构造的第一有效信道在子载波上进行发射。 网络基站106可以具有专用天线组112,以经由能够基于至少一个专用参考符号来估计的第二有效信道在子载波上进行发射。 用户设备设备102可以使用至少一个公共参考符号和至少一个专用参考符号解调数据传输。

    METHOD AND APPARATUS FOR USING SWITCHED MULTIBEAM ANTENNAS IN A MULTIPLE ACCESS COMMUNICATION SYSTEM
    17.
    发明申请
    METHOD AND APPARATUS FOR USING SWITCHED MULTIBEAM ANTENNAS IN A MULTIPLE ACCESS COMMUNICATION SYSTEM 审中-公开
    在多存取通信系统中使用切换多天线天线的方法和装置

    公开(公告)号:WO2004032393A3

    公开(公告)日:2004-05-27

    申请号:PCT/US0330941

    申请日:2003-10-01

    Applicant: MOTOROLA INC

    Inventor: FRANK COLIN

    CPC classification number: H04B7/0408 H04B7/0491 H04W52/262 H04W52/42

    Abstract: In order to increase a capacity, or a number of mobile stations (MSs), or users, that may engage in concurrent communication sessions, a communication system (100) is provided that schedules a different MS, or user, (110-112) in each beam of multiple predetermined, fixed beams (160-165) associated with a coverage area, for example, a sector. By simultaneously scheduling a user in each beam of the multiple beams, a performance and throughput of communication system is significantly increased over the prior art. In one embodiment of the present invention, a portion of a shared communication channel that is allocated to each MS is concurrently transmitted to each MS via a beam associated with the MS. In other embodiments of the present invention, voice channels, data channels, and control channels associated with each MS scheduled in a beam may be concurrently transmitted to each MS via the beam associated with the MS.

    Abstract translation: 为了增加可能参与同时通信会话的容量或者多个移动台(MS)或用户,提供了调度不同MS或用户(110-112)的通信系统(100) 在与覆盖区域(例如扇区)相关联的多个预定固定波束(160-165)的每个波束中。 通过在多个波束中的每个波束中同时调度用户,通信系统的性能和吞吐量相对于现有技术显着增加。 在本发明的一个实施例中,分配给每个MS的共享通信信道的一部分经由与MS相关联的波束被同时发送给每个MS。 在本发明的其他实施例中,与在波束中调度的每个MS相关联的话音信道,数据信道和控制信道可以经由与MS相关联的波束被同时发送到每个MS。

Patent Agency Ranking