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    METHOD FOR COMMUNICATING VARIABLE LENGTH MESSAGES BETWEEN A PRIMARY STATION AND REMOTE STATIONS OF A DATA COMMUNICATIONS SYSTEM
    2.
    发明专利
    METHOD FOR COMMUNICATING VARIABLE LENGTH MESSAGES BETWEEN A PRIMARY STATION AND REMOTE STATIONS OF A DATA COMMUNICATIONS SYSTEM 未知

    公开(公告)号：DE3473106D1

    公开(公告)日：1988-09-01

    申请号：DE3473106

    申请日：1984-06-28

    Applicant: MOTOROLA INC

    Inventor： KREBS JAY ,  FREEBURG THOMAS

    IPC: H04W28/06 ,  H04J3/06 ,  H04L5/22 ,  H04L13/00 ,  G08B5/22

    Abstract: A data communications system is described in which variable length messages are communicated between a general communications controller (GCC) and a plurality of portable and mobile radios. The variable length messages include a bit synchronization field, a message synchronization field and a plurality of channel data blocks for efficiently and reliably handling long strings of data or text. Each channel data block includes an information field, a parity field for error-connecting the information field and a channel state field indicating whether or not the radio channel is busy or free. The GCC is coupled to a cellular arrangement of channel communications modules (CCM's), which each include a radio transmitter and/or radio receiver. The mobile and portable radios communicate with the GCC by way of the CCM's.

    3.
    发明专利
    未知

    公开(公告)号：DE4497511T1

    公开(公告)日：1997-07-31

    申请号：DE4497511

    申请日：1994-08-18

    Applicant: MOTOROLA INC

    Inventor： KREBS JAY ,  ERICKSON PAUL M

    IPC: H04W84/08 ,  H04Q7/20 ,  H04Q7/22 ,  H04Q7/24 ,  H04B7/26

    Abstract: Apparatus and method for enabling a single communication system (100) to support at least two communication services. For example, one can support both cellular telephone services and trunked dispatch services by sharing some, but not all, of the system infrastructure. Access control gateways (201) and base stations (203) comprise common infrastructure elements, while two separate processors provide control for each service, these being a communication agent processor (104) to support telephone services, and a dispatch call processor (106) to support dispatch call services. These two independent processors each include a data base (303 and 307) that includes information concerning communication units (204-206) operating within the system. During a call set-up sequence, the access control gateway (201) receives a call request from a communication unit via a base station, and passes the request to the appropriate processor, which uses its corresponding database to support the requested service.

    DATA COMMUNICATIONS SYSTEM
    5.
    发明专利
    DATA COMMUNICATIONS SYSTEM 未知

    公开(公告)号：AU7896487A

    公开(公告)日：1987-12-24

    申请号：AU7896487

    申请日：1987-09-25

    Applicant: MOTOROLA INC

    Inventor： KREBS JAY ,  FREEBURG THOMAS ARTHUR

    IPC: H04W28/06 ,  H04L1/00 ,  H04B7/26

    Abstract: A data communications system is described in which variable length messages are communicated between a general communications controller (GCC) and a plurality of portable and mobile radios. The variable length messages include a bit synchronization field, a message synchronization field and a plurality of channel data blocks for efficiently and reliably handling long strings of data or text. Each channel data block includes an information field, a parity field for error-connecting the information field and a channel state field indicating whether or not the radio channel is busy or free. The GCC is coupled to a cellular arrangement of channel communications modules (CCM's), which each include a radio transmitter and/or radio receiver. The mobile and portable radios communicate with the GCC by way of the CCM's.

    7.
    发明专利
    未知

    公开(公告)号：DE4497511C2

    公开(公告)日：2000-05-11

    申请号：DE4497511

    申请日：1994-08-18

    Applicant: MOTOROLA INC

    Inventor： KREBS JAY ,  ERICKSON PAUL M

    IPC: H04W84/08 ,  H04Q7/20 ,  H04Q7/22 ,  H04Q7/24 ,  H04B7/26

    Abstract: Apparatus and method for enabling a single communication system (100) to support at least two communication services. For example, one can support both cellular telephone services and trunked dispatch services by sharing some, but not all, of the system infrastructure. Access control gateways (201) and base stations (203) comprise common infrastructure elements, while two separate processors provide control for each service, these being a communication agent processor (104) to support telephone services, and a dispatch call processor (106) to support dispatch call services. These two independent processors each include a data base (303 and 307) that includes information concerning communication units (204-206) operating within the system. During a call set-up sequence, the access control gateway (201) receives a call request from a communication unit via a base station, and passes the request to the appropriate processor, which uses its corresponding database to support the requested service.

    Method and apparatus for supporting at least two communication services in a communication system
    8.
    发明专利
    Method and apparatus for supporting at least two communication services in a communication system 未知

    公开(公告)号：ZA946848B

    公开(公告)日：1995-04-21

    申请号：ZA946848

    申请日：1994-09-06

    Applicant: MOTOROLA INC

    Inventor： KREBS JAY ,  ERICKSON PAUL M

    IPC: H04W84/08 ,  H04J ,  H04Q ,  H04M

    Abstract: Apparatus and method for enabling a single communication system (100) to support at least two communication services. For example, one can support both cellular telephone services and trunked dispatch services by sharing some, but not all, of the system infrastructure. Access control gateways (201) and base stations (203) comprise common infrastructure elements, while two separate processors provide control for each service, these being a communication agent processor (104) to support telephone services, and a dispatch call processor (106) to support dispatch call services. These two independent processors each include a data base (303 and 307) that includes information concerning communication units (204-206) operating within the system. During a call set-up sequence, the access control gateway (201) receives a call request from a communication unit via a base station, and passes the request to the appropriate processor, which uses its corresponding database to support the requested service.

    10.
    发明专利
    未知

    公开(公告)号：SE517694C2

    公开(公告)日：2002-07-02

    申请号：SE9601206

    申请日：1996-03-29

    Applicant: MOTOROLA INC

    Inventor： KREBS JAY ,  ERICKSON PAUL M

    IPC: H04W84/08 ,  H04Q7/28

    Abstract: Apparatus and method for enabling a single communication system (100) to support at least two communication services. For example, one can support both cellular telephone services and trunked dispatch services by sharing some, but not all, of the system infrastructure. Access control gateways (201) and base stations (203) comprise common infrastructure elements, while two separate processors provide control for each service, these being a communication agent processor (104) to support telephone services, and a dispatch call processor (106) to support dispatch call services. These two independent processors each include a data base (303 and 307) that includes information concerning communication units (204-206) operating within the system. During a call set-up sequence, the access control gateway (201) receives a call request from a communication unit via a base station, and passes the request to the appropriate processor, which uses its corresponding database to support the requested service.

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