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    44.
    发明专利
    未知

    公开(公告)号：SE518954C2

    公开(公告)日：2002-12-10

    申请号：SE9701032

    申请日：1997-03-21

    Applicant: MOTOROLA INC

    Inventor： LABEDZ GERALD PAUL ,  STEWART KENNETH

    IPC: H04J13/00 ,  H04B17/00 ,  H04L25/02 ,  H04L29/08

    Abstract: Communication rate in a variable rate communication system is determined by calculating metrics based upon symbol energy over a traffic channel frame (200) and selecting an optimum rate based upon the calculated metrics. The metrics are calculated by selectively accumulating symbol energy, using adders (405-408) and accumulators (409-412) in response to the presence of power control groups (201) within the traffic channel frame (200), as determined by power control group selector (400).

    45.
    发明专利
    未知

    公开(公告)号：BR9814761A

    公开(公告)日：2000-10-17

    申请号：BR9814761

    申请日：1998-12-18

    Applicant: MOTOROLA INC

    Inventor： GHOSH AMITAVA ,  LABEDZ GERALD PAUL ,  HAAS KENNETH A

    IPC: H04B7/26 ,  H04J11/00 ,  H04Q7/22 ,  H04Q7/24 ,  H04Q7/26 ,  H04Q7/30 ,  H04B7/005

    Abstract: Base stations (101, 102) utilize a spreading code that is dependent upon whether the particular base station (101) is operating in a synchronized, or an unsynchronized mode. Unsynchronized base stations (102) within the communication system (100) utilize a long code unique to the particular base station (102), and base stations (101) operating in a synchronized mode utilize a time shifted version of the same long code. To reduce the search time for remote units (113) within the communication system (100), a group identification code (GIC) (305) is broadcast during a time period that the long code is masked. The GIC (305) indicates a (spreading code) long code group to which the long code of each base station belongs. Additionally, each base station (101, 102) within the communication system (100) determines its synchronization status and utilizes a particular GIC (305) and long code based on the base station's synchronization status.

    METHOD AND SYSTEM FOR PROVIDING COMMUNICATIONS SERVICE TO A COVERAGE HOLE
    46.
    发明专利
    METHOD AND SYSTEM FOR PROVIDING COMMUNICATIONS SERVICE TO A COVERAGE HOLE 未知

    公开(公告)号：CA2192286A1

    公开(公告)日：1998-06-06

    申请号：CA2192286

    申请日：1996-12-06

    Applicant: MOTOROLA INC

    Inventor： LABEDZ GERALD PAUL

    IPC: H04B7/26 ,  H04W24/02 ,  H04Q7/36

    Abstract: Providing communications service to a coverage hole (22) in a DS-CDMA cellular communication system (50) involves an OMC (52) determining the transmitters (134-144) in adjacent cells (122-132) to the coverage hole (22). The OMC (52) places each of the transmitters (134-144) in the adjacent cells (122-132) in a power on demand mode (92). The OMC (52) then selects at least one, but less than all of the transmitters (134-144) to increase power to a pilot channel. The selected transmitter(s) is chosen base on one or more of the following factors, the transmitter's level of unused power, the interference level at the transmitter and the position of the transmitter.

    AGC ISOLATION OF INFORMATION IN TDMA SYSTEMS
    47.
    发明专利
    AGC ISOLATION OF INFORMATION IN TDMA SYSTEMS 未知

    公开(公告)号：CA2001019C

    公开(公告)日：1997-04-22

    申请号：CA2001019

    申请日：1989-10-19

    Applicant: MOTOROLA INC

    Inventor： DETTRO GREGORY J ,  LABEDZ GERALD PAUL ,  ATKINSON FREDERICK GARLAND

    IPC: H04J3/00 ,  H01J3/02 ,  H01J3/14 ,  H03G3/20 ,  H04J3/10 ,  H04J3/14 ,  H04J3/06

    Abstract: A method is provided for isolating and processing certain informationof-interest received by a receiver in a Time Division Multiple Access (TDMA) communications system having a receiver and a transmitter. The informationof-interest is transmitted at predetermined intervals. The receiver receives a transmission of signals containing the information-of-interest transmitted from the transmitter. The start of the transmission is sensed from the received signals. The receiver isolates signals received after a predetermined period elapses after the start of the transmission is sensed so as to include the information-of-interest in the isolated signals. Then, the isolated signals including the information-of-interest are processed. In the preferred embodiment, the receiver automatically controls the gain of an amplifier amplifying the received signals in response to the signal power of the received signals. Automatic gain control values of the amplifier are sampled for a predetermined period after the start of the transmission is sensed. A fixed automatic gain control value is determined in response to the sampled automatic gain control values, and the receiver holes the automatic gain control value at the fixed value after the predetermined period elapses until the transmission ofthe information-of-interest ends. Furthermore, the receiver digitizes the received signals, and tags the digitized signals which were digitized from signals received before the start of the transmission is sensed to ignore the tagged signals in processing the information-of-interest.

    48.
    发明专利
    未知

    公开(公告)号：SE9701032D0

    公开(公告)日：1997-03-21

    申请号：SE9701032

    申请日：1997-03-21

    Applicant: MOTOROLA INC

    Inventor： LABEDZ GERALD PAUL ,  STEWART KENNETH

    IPC: H04J13/00 ,  H04B17/00 ,  H04L25/02 ,  H04L29/08 ,  H04B

    Abstract: Communication rate in a variable rate communication system is determined by calculating metrics based upon symbol energy over a traffic channel frame (200) and selecting an optimum rate based upon the calculated metrics. The metrics are calculated by selectively accumulating symbol energy, using adders (405-408) and accumulators (409-412) in response to the presence of power control groups (201) within the traffic channel frame (200), as determined by power control group selector (400).

    49.
    发明专利
    未知

    公开(公告)号：FI970963A

    公开(公告)日：1997-03-06

    申请号：FI970963

    申请日：1997-03-06

    Applicant: MOTOROLA INC

    Inventor： LABEDZ GERALD PAUL ,  STEWART KENNETH A

    IPC: H04J13/00 ,  H04B17/00 ,  H04L25/02 ,  H04L29/08 ,  H04B ,  H04L

    Abstract: Communication rate in a variable rate communication system is determined by calculating metrics based upon symbol energy over a traffic channel frame (200) and selecting an optimum rate based upon the calculated metrics. The metrics are calculated by selectively accumulating symbol energy, using adders (405-408) and accumulators (409-412) in response to the presence of power control groups (201) within the traffic channel frame (200), as determined by power control group selector (400).

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