Abstract: A communication system includes a vehicle (101) and an infrastructure (160). The vehicle contains vehicle system information (104) and user information (112). The infrastructure includes a processor (154) with an applications program (155). The application is arranged to remotely access (200, 300, 400 and 500) the vehicle system information in a secure manner. The application is also arranged to remotely access (600) the user information in a secure manner.

Abstract: A telematics communication system (100) includes an infrastructure (140) and a vehicle (102), the vehicle including at least one in-vehicle system (104, 118) and a wireless gateway (120) in communication with an authenticated vehicle gateway (108). The authenticated vehicle gateway authenticates the wireless gateway and the at least one in-vehicle system and processes service requests and authenticated service grants for the authenticated wireless gateway and the authenticated in-vehicle system.

Abstract: A communication system includes a vehicle (101) and an infrastructure (160). The vehicle contains vehicle system information (104) and user information (112). The infrastructure includes a processor (154) with an applications program (155). The application is arranged to remotely access (200, 300, 400 and 500) the vehicle system information in a secure manner. The application is also arranged to remotely access (600) the user information in a secure manner.

Abstract: A communication system (100) includes an infrastructure (150) and at least one vehicle (101), the vehicle including at least one vehicle system (103), and at least one user system (113). The infrastructure includes an application (155) which, in turn, is arranged to reprogram the vehicle system, the user system, or both.

Abstract: In a wireless communication system (100, 200), at least one service building block (605-610 and 622) is used in a service creation environment (301) to create logic program rules (303) that include identification of an authorized service execution environment. The logic program rules, which may require further configuration, are provided to a service execution environment (302) having an identification that matches the identification of the authorized service execution environment. Configurable software modules within the service execution environment are executed in accordance with the logic program rules when at least one predetermined stimulus is detected, thereby providing the service within the system. The service creation environment and the service execution environment may be implemented within a single console or separately implemented within different consoles, or the service creation environment can be embodied within a stand-alone computer (201). In this manner, rapid service creation is provided.

Abstract: A subscriber unit for use with a duplex communication system is described. The present invention contemplates a duplex transceiver which incorporates data and voice handling capablity. A microprocessor generates data and DTMF signalling as well as decoding received data. According to the principles of the present invention, an improved duplex capable subscriber unit is achieved by coupling a microprocessor to a duplex transceiver through switchable filters. The filters exhibit a relatively fast or slow time constant depending on the state of a filter control input. The microprocessor is then capable of operating the subscriber unit with optimum frequency response characteristics depending on whether voice or data is being received. In addition, a summing network coupled between the microprocessor and the transmit switchable filter cooperates with the switchable filter and allows the duplex subscriber unit of the present invention to generate DTMF signalling.

Abstract: A method of tracking subscribers (201, 203) in a networked radio communications system (100, 200). The subscribers (201,203) are able to roam among a plurality of coverage areas (104-106) which are serviced by a plurality of transmitters (107-109). The transmitters (107-109) are coupled to a central processor (CP, 110), which accesses a memory device (112) for storing subscriber records and site records. Subscriber records include location information for each of the subscribers, while the site records include a logical representation of geographical relationships between the coverage areas. The method relies on the subscriber to send an inbound message (330) which includes its current location. Further, the CP (110) records a message time for the inbound message, producing a timestamped location, then updates (405) a corresponding portion of the subscriber record with the timestamped location.

Abstract: A subscriber unit for use with a duplex communication system is described. The present invention contemplates a duplex transceiver which incorporates data and voice handling capability. A microprocessor generates data and DTMF signaling as well as decoding received data. According to the principles of the present invention, an improved duplex capable subscriber unit is achieved by coupling a microprocessor to a duplex transceiver through switchable filters. The filters exhibit a relatively fast or slow time constant depending on the state of a filter control input. The microprocessor is then capable of operating the subscriber unit with optimum frequency response characteristics depending on whether voice or data is being received. In addition, a summing network coupled between the microprocessor and the transmit switchable filter cooperates with the switchable filter and allows the duplex subscriber unit of the present invention to generate DTMF signaling.

Abstract: In a trunked communication system that supports roaming communication units, communication capabilities in support of the communication activities of the communication unit may be varied from system to system in a controlled manner. This control may be initiated at the instance of the communication unit itself, on a system by system basis (wherein each system maintains a data base and/or retains the capability of contacting a home system for the communication unit), or by a hub that interconnects with each of the trunking systems and which either maintains a data base of preauthorization information or that contacts home systems in order to obtain authorization information.

Abstract: An apparatus and method for issuing busy call-backs (146) on the voice channel to busied communication units (209,211) on a trunked radio communication system (200) is disclosed. This is accomplished, in part, by issuing a busy signal (104), via a control resource (203), to a communication unit when a requested communication resource is unavailable. Additionally, the radio communication unit (209,211) is capable of receiving the busy signal via the control resource (213) and participating in a second communication while in a busied state. The resource controller (201) is capable of allowing the busied communication unit (209,211) to participate in a second communication on a second communication resource (215) and issuing the call-back signal during the second communication.

Abstract: A dispatch trunked radio system which provides duplex or simplex telephone interconnect communications to subscriber units is described. The system allows duplex capable trunked system subscriber units to establish a full duplex communication link with conventional land based telephone interconnect service in accordance with a method which unifies the operation of the trunked system subscriber units, a plurality of trunked system repeaters, a trunked system central control unit, and a telephone interconnect control unit. The method of the present invention also provides improved trunked system performance by allowing simultaneous transmission and reception of channel controlling information.