1.
    发明专利
    未知

    公开(公告)号:DE60216635T2

    公开(公告)日:2007-04-05

    申请号:DE60216635

    申请日:2002-10-21

    Applicant: MOTOROLA INC

    Inventor: BENSON MAYA

    Abstract: This invention relates to an apparatus and method for allocating timeslots subscriber units in a time division duplex communication system (300). The communication system (300) has a number of frame synchronised base stations (301). The apparatus (301) comprises a switching point processor (323) which determines a switching point (223) between uplink and downlink timeslots in a time frame. It further comprises a power level processor 321 which determines power levels associated with communication from aplurality of subscriber units (307, 309, 311) to be allocated time slots. In addition the apparatus (301) comprises a time slots scheduler which allocates time slots in the time frame to the subscriber units (307, 309, 311) in response to the associated power levels. The invention is applicable to 3rd generation cellular communication systems such as the Time Division Duplex mode of UMTS.

    A METHOD AND APPARATUS FOR SELECTING CARRIERS

    公开(公告)号:AU2003247317A1

    公开(公告)日:2003-09-09

    申请号:AU2003247317

    申请日:2003-01-27

    Applicant: MOTOROLA INC

    Abstract: This invention relates to a method and apparatus for selecting carriers to be measured by a subscriber unit ( 301,303, 501 ). The subscriber unit ( 301, 303, 501 ) is served by a communication system and is operable to measure carriers in a frequency band, which typically belongs to a different communication system. The apparatus comprises a performance processor ( 329 ) for determining a measuring performance characteristic of the subscriber unit ( 301, 303, 501 ) related to the measurement performance of the subscriber unit ( 301, 303, 501 ) when measuring in the frequency band. The apparatus furthermore comprises a carrier subset selector ( 331 ) for selecting a subset of carriers in the frequency band to be measured by the subscriber unit. The subset of carriers is selected dependent on the measuring performance characteristic. The invention is applicable to dual 2nd and 3rd generation cellular communication systems such as GSM/UMTS.

    5.
    发明专利
    未知

    公开(公告)号:DE60202206D1

    公开(公告)日:2005-01-13

    申请号:DE60202206

    申请日:2002-02-25

    Applicant: MOTOROLA INC

    Abstract: A method of allocating timeslots between uplink and downlink communication in a cellular communication system (10) is described. The method comprises: for consecutive time division multiple access, TDMA, frames comprising the timeslots, allocating a first selection of the timeslots to uplink communication in each of a plurality of cells (101,201) and allocating a second selection of the timeslots to downlink communiction in each of the plurality of cells (101,201); and, when the number of timeslots of each frame to be allocated to uplink communication rather than downlink is different for different cells (101,201), varying the allocation of at least some of the uplink and downlink timeslots in a random or pseudo-random sequence in each cell (101, 201).

    6.
    发明专利
    未知

    公开(公告)号:AT284585T

    公开(公告)日:2004-12-15

    申请号:AT02719958

    申请日:2002-02-25

    Applicant: MOTOROLA INC

    Abstract: A method of allocating timeslots between uplink and downlink communication in a cellular communication system (10) is described. The method comprises: for consecutive time division multiple access, TDMA, frames comprising the timeslots, allocating a first selection of the timeslots to uplink communication in each of a plurality of cells (101,201) and allocating a second selection of the timeslots to downlink communiction in each of the plurality of cells (101,201); and, when the number of timeslots of each frame to be allocated to uplink communication rather than downlink is different for different cells (101,201), varying the allocation of at least some of the uplink and downlink timeslots in a random or pseudo-random sequence in each cell (101, 201).

    A method and apparatus for selecting carriers

    公开(公告)号:GB2385745B

    公开(公告)日:2004-06-09

    申请号:GB0204045

    申请日:2002-02-21

    Applicant: MOTOROLA INC

    Abstract: This invention relates to a method and apparatus for selecting carriers to be measured by a subscriber unit ( 301,303, 501 ). The subscriber unit ( 301, 303, 501 ) is served by a communication system and is operable to measure carriers in a frequency band, which typically belongs to a different communication system. The apparatus comprises a performance processor ( 329 ) for determining a measuring performance characteristic of the subscriber unit ( 301, 303, 501 ) related to the measurement performance of the subscriber unit ( 301, 303, 501 ) when measuring in the frequency band. The apparatus furthermore comprises a carrier subset selector ( 331 ) for selecting a subset of carriers in the frequency band to be measured by the subscriber unit. The subset of carriers is selected dependent on the measuring performance characteristic. The invention is applicable to dual 2nd and 3rd generation cellular communication systems such as GSM/UMTS.

    A mobile subscriber unit selects carriers belonging to a different communication system in a dual second and third generation system

    公开(公告)号:GB2385745A

    公开(公告)日:2003-08-27

    申请号:GB0204045

    申请日:2002-02-21

    Applicant: MOTOROLA INC

    Abstract: This invention relates to a method and apparatus for selecting carriers to be measured by a subscriber unit (301,303,501). The subscriber unit(301,303,501) is served by a communication system and is operable to measure carriers in a frequency band, which typically belongs to a different communication system. The apparatus comprises a performance processor (329) for determining a measuring performance characteristic of the subscriber unit (301,303,501) related to the measurement performance of the subscriber unit (301,303,501) when measuring in the frequency band. The apparatus furthermore comprises a carrier subset selector (331) for selecting a subset of carriers in the frequency band to be measured by the subscriber unit. The subset of carriers is selected dependent on the measuring performance characteristic. The invention is applicable to dual 2 and 3 generation cellular communication systems such as GSM/UMTS.

    ALLOCATION OF TIMESLOTS IN A CELLULAR COMMUNICATION SYSTEM
    10.
    发明申请
    ALLOCATION OF TIMESLOTS IN A CELLULAR COMMUNICATION SYSTEM 审中-公开
    细胞通讯系统中的时间分配

    公开(公告)号:WO02098021A3

    公开(公告)日:2003-03-20

    申请号:PCT/EP0202142

    申请日:2002-02-25

    CPC classification number: H04B7/2656

    Abstract: A method of allocating timeslots between uplink and downlink communication in a cellular communication system (10) is described. The method comprises: for consecutive time division multiplex access, TDMA, frames comprising the timeslots, allocating a first selection of the timeslots to uplink communication in each of a plurality of cells (101,201) and allocating a second selection of the timeslots to downlink communiction in each of the plurality of cells (101,201); and, when the number of timeslots of each frame to be allocated to uplink communication rather than downlink is different for different cells (101,201), varying the allocation of at least some of the uplink and downlink timeslots in a random or pseudo-random sequence in each cell (101, 201).

    Abstract translation: 描述在蜂窝通信系统(10)中在上行链路和下行链路通信之间分配时隙的方法。 该方法包括:对于连续的时分复用接入TDMA,包括时隙的帧,在多个小区(101,201)中的每一个小区(101,201)中分配时隙的第一选择到上行链路通信,并将时隙的第二选择分配给下行链路通信 所述多个单元(101,201)中的每一个; 并且当对于不同的小区(101,201)分配给上行链路通信而不是下行链路的每个帧的时隙的数量不同时,以随机或伪随机序列中的至少一些上行链路和下行链路时隙的分配改变 每个单元(101,201)。

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