Abstract:
An apparatus, method and system provide or broadcast information within a given geographic region that is also specific to a given geographic region, such as traffic reports, sightseeing interests, public services information, or weather conditions. The apparatus, method and system of the present invention also provide for different or varying information to be broadcast from region to region; specific hand-off procedures as mobile units change regions; the capability for multiple mobile units to utilize the same broadcast channel containing the information; and the muting of the reverse voice channels of such mobile units during such broadcast sessions. The system of the present invention includes a plurality of serving transceivers located in a corresponding plurality of geographic areas, and a switching center coupled via a plurality of trunk lines to the plurality of serving transceivers. The system is user activated, wherein the switching center, when operative, includes program instructions to receive from a first serving transceiver a first request from a first mobile unit for an information broadcast feature in a first geographic area, and to connect a trunk line having the requested information broadcast feature to a broadcast channel; to direct the first serving transceiver to transmit a directive to the first mobile unit to the broadcast channel in the first geographic area and to mute a transmit voice channel of the first mobile unit.
Abstract:
A method for determining the operational status of base stations deployed in a cellular telecommunications system comprises continually sharing operational status data with adjacent base stations in accordance with a primary diagnostic protocol. Upon non-receipt of an operational status message, a supplemental diagnostic protocol is executed to identify a malfunctioning base station. The failed status of an identified malfunctioning base station is extended to a mobile switching center over an established data interface. In some circumstances, the mobile switching center extends radio allocation information to a functional base station so that the functional base station may perform temporary administrative services for the adjacent failed base station until permanent repairs can be made.
Abstract:
Low profile wash pads, usable alone or with other like pads in a module array, are disclosed whereby one or more motor driven or motorless vehicles may be wheeled onto or across (or other object placed upon) a full drainage impervious washing platform such that substantially all spent wash liquid and removed debris are caused to flow off from the washing platform to an edge collector or gutter. Debris accumulation at the washing platform is avoided and processing of gutter-contained spent wash liquid and removed debris can occur in offset relation to and without interfering with ongoing washing on the washing platform. Several modes for processing the drainage comprising spent wash liquid and removed debris contained in the gutter are disclosed, one mode comprising automated processing using a screw conveyor.
Abstract:
In order to reduce the traffic on the paging channel, the system for reducing paging channel occupancy for message waiting indication in mobile switching centers allows the Message Waiting Notification process to determine a last zone in which the Mobile Subscriber was located and only transmit the Message Waiting Indication to the cells within that zone. This eliminates message transmission on the paging channel of cells which are not likely to have the Mobile Subscriber Station residing in their service area. Multiple retries can be attempted and if the last retry is being activated, the paging can be extended to cover all zones in the Mobile Switching Center. The sharing of information about when a mobile has responded to a message waiting count between the Serving MSC and the Home MSC also reduces the paging channel occupancy. The method of not sending a message waiting notification when a mobile has already acknowledged the message count greatly reduces the impact of Message Waiting Notification on the paging channel occupancy. In particular, border cell areas where the Mobile Subscriber Station can bounce between MSCs is where the biggest benefit can be derived.
Abstract:
The present invention provides a method for tracking multiple mobile units based upon the initial location of a distressed mobile unit. A distressed mobile unit is one, for example, belonging to someone who has been kidnapped or had their vehicle carjacked. An MSC receives a request to locate a distressed mobile unit. The MSC determines the location of the distressed mobile unit and also other mobile units that are located in the location area. The MSC then tracks the other mobile units.
Abstract:
The present invention provides a method for locating a mobile unit. A home Mobile Switching Center (MSC) receives a request for the location of a mobile unit. The home MSC determines a visited MSC that is the last MSC accessed by the mobile unit. The home MSC sends a message requesting the location of the mobile unit to the visited MSC. The visited MSC initiates a location finding process for the mobile unit. If the mobile unit is located at the visited MSC, the visited MSC sends location data relating to the mobile unit to the home MSC.
Abstract:
The message waiting notification update system is operable in the serving Mobile Switching Center and, upon receipt of a message-waiting acknowledgement from the mobile subscriber station, updates the local copy of the subscriber's data in the Visited Location Register and forwards this information to the subscriber's Home Location Register. The Home Location Register stores this received data for use when the next successive Registration Notification is received from a new serving Mobile Switching Center or in response to the subscriber initiating a local access. When the serving Mobile Switching Center receives a Registration Notification message return result from the subscriber's Home Location Register and the message waiting notification count is the same as the count previously sent to the Home Location Register, the serving Mobile Switching Center does not have to transmit a message waiting notification over the forward control channel to the mobile subscriber station.
Abstract:
An apparatus, method and system are provided for automatic telecommunication conferencing and broadcasting. The system embodiment includes a switch for reception of a first incoming call leg designating a multiple leg service, such as a telecommunication conference, and also designating a subscriber group. Each particular subscriber group is predefined, and consists of a list of directory numbers to be included within the conference or broadcast session. The system embodiment also includes a conference bridge coupled to the switch, in which the conference bridge includes instructions to receive the first incoming call leg routed from the switch, to determine the plurality of directory numbers associated with the subscriber group, and to return to the switch a plurality of intermediate incoming call legs corresponding to the plurality of directory numbers for routing by the switch to form a plurality of outgoing call legs. The conference bridge also includes further instructions to monitor answering of the plurality of outgoing call legs, and to connect an outgoing call leg indicating joinder, of the plurality of outgoing call legs, to the conference bridge for a multiple leg telecommunication session, such as a conference or broadcast session.
Abstract:
An apparatus, method and system are provided for a handoff of a mobile broadcast of information specific to a geographic region. The mobile broadcast is typically transmitted on a first broadcast channel from a serving switching center and a serving transceiver to a mobile unit, such as to a cellular telephone. The preferred system includes a plurality of mobile switching centers coupled via signaling and trunk lines to a plurality of transceivers. The serving switching center selects a target switching center and transmits a handoff directive, the handoff directive including a broadcast parameter designating the mobile broadcast. In the preferred embodiment, the broadcast parameter is an eight bit designation of the broadcast channel, and may be included within a field of ANSI-compatible messages, such as Facilities Directives and Handoff Measurement Requests, and distinguishes the handoff of the information broadcast from other types of communication handoffs. The target switching center determines a second broadcast channel providing an information broadcast feature in a second geographic area served by the target switching center and a target transceiver. Via the serving transceiver, the serving switching center directs the mobile unit to the second broadcast channel.
Abstract:
The present Inter-System Message Delivery System increases the SMS text message delivery success rate. When a mobile subscriber station roams outside of the confines of the cell in which it is presently registered, the delivery of SMS messages to mobile subscriber stations fails, since the mobile subscriber station is not present in the Serving Mobile Switching Center to receive the SMS message. This is particularly common when the mobile subscriber station is moving within the confines of a border cell or multiple cells of a Border Mobile Switching Center and is not yet registered at this Border Mobile Switching Center. The SMS message delivery process initiates a page to the mobile subscriber station via inter-system or inter-Mobile Switching Center paging. Once the mobile subscriber station is located, the bearer data for this mobile subscriber station is forwarded from the Serving Mobile Switching Center to the Border Mobile Switching Center in which the mobile subscriber station is presently located The mobile subscriber station is finally registered at the Border MSC.