Abstract: Upon detecting a contention between a call request and an active call (404), the call request is added to a busy queue as a contention busied call (412) and at least one logical link is created between the busied call and the active call(s) giving rise to the contention (414). When the active call(s) terminate (502), the at least one logical link is used to identify those busied calls that may be converted to active calls (514), thereby reducing delays associated with the conversion of contention busied calls.

Abstract: A software programmable radio (200) receives information to configure a reconfigurable resource (208) to perform an operation based on the information. A processor (210) within the reconfigurable resource performs a software program in accordance with the operation, such as a waveform for communicating via a spread spectrum technique. The method includes the steps of checking (304) for a valid license granted to the radio to determine when the radio is authorized for use in the network. A controller (204) configures the radio to perform the operation based on the information.

Abstract: A mobile radio station is disclosed having a device for synchronization with data streams transmitted over radio channels by base stations of a cellular mobile radio network. After an erroneous attempt at synchronization with a radio channel that has a receiving level, another attempt at synchronization with the radio channel is made after a delay. The delay depends on the receiving levels of different radio channels, the number of erroneous synchronization attempts, the number of radio channels with which the mobile radio station has already been synchronized, or the velocity of the mobile radio station. A new delay may also be obtained based on the old delay and the last two receiving levels.

Abstract: A method and system of completing calls to busy mobile subscribers in a radio telecommunications network. The system includes a gateway mobile switching center (G-MSC) to provide switching functions to a mobile station (MS) in a home service area, a home location register (HLR) providing a location of the MS to the G-MSC, a visitor mobile switching center (V-MSC) to provide switching functions to the MS when the MS roams outside the home service area, and a service control point (SCP) which includes service logic for periodically initiating a call attempt to the MS to determine if the MS is busy. When the calling party attempts to call a busy MS, the calling party may request an automatic callback service. The G-MSC releases all trunks from the calling party and the MS and notifies the SCP. The SCP periodically initiates a call attempt to ascertain whether the MS is idle. Upon determining that the MS is idle, the G-MSC connects the call between the calling party and the MS.

Abstract: The following describes an apparatus for and method of providing and supporting distributed call handling over a plurality of network nodes (401, 403, 405, 407, 409, 411, 413) in a communication system, wherein the network nodes (401, 403, 405, 407, 409, 411, 413) are found in each device with the system, rather than only in the repeaters (101, 103, 105, 107, 109), the site controller (111), or the zone controller (ZC) for the system. The call establishment process is provided as elements (301, 303, 305, 307, 309, 311, 313) of a state machine. Each of the elements (301, 303, 305, 307, 309, 311, 313) is distributed over one or more of the plurality of network nodes (401, 403, 405, 407, 409, 411, 413). If one of the network nodes becomes unavailable, the element(s) supported by the now unavailable network node is reassigned (705, 809), as necessary.

Abstract: A portable communication device has a software processing section and a hardware processing section which are capable of performing wireless voice communication and wireless data communication of different communication modes and communication channels, wherein the portable communication device automatically matches the communication device of the portable communication device and the communication device of the opposite party before the communication is started. The transmitting side of the communication requests switching of the present communication mode or communication channel of the opposite side through a data signal so that the two sides use the same communication mode or communication channel. The transmitting side, thereafter, switches to the wireless voice communication and calls out. The receiving side of the communication switches to the wireless voice communication in accordance with the switching request signal transmitted from the transmitting side, thereby enabling voice communication.

Abstract: A mobile communication system includes a switching unit, a plurality of radio base stations, and a mobile station. The switching unit processes a call from an originating terminal. The radio base stations have service areas allowing radio communication and are connected to the switching unit. The mobile station performs radio communication with the radio base station within the service area. The switching unit includes a switching section, a database, and a message forming section. The switching section performs switching/connection between the originating terminal and the mobile station on a terminating side through the radio base station. The database stores last registration time recognized by the mobile station. The message forming section forms a speech message including the last registration time stored in the database and outputting the message to the originating terminal when there is no response from the mobile station with respect to a terminating operation.

Abstract: A communication system (100) employs a method and apparatus for providing communication service to communication units (207-213) located within a common carrier transportation device (115). A stationary system controller (101) allocates a first set of communication resources (e.g., 140-149) to a mobile system controller (200) located at the common carrier transportation device (115). The first set of communication resources (140-149) are a subset of the communication resources assigned to a first stationary base site (109) of multiple stationary base sites (102-112) controlled by the stationary controller (101). The mobile controller (200) maps the first set (140-149) to a second set of communication resources (220-229) for use within the common carrier transportation device (115). The second set (220-229) is distinct from the first set (140-149) and is preferably selected to not interfere substantially with communication resources assigned to the stationary base sites (102-112).

Abstract: A communication system (100) employs a method (300) and apparatus (118) for allocating communication resources (e.g., 127-128) to support priority communications by communication units (112, 114-116) in the communication system (100). The communication system includes infrastructure equipment that allocates the communication resources to the communication units (112, 114-116). When the infrastructure equipment automatically determines (303) that a communication unit (e.g., 112) desires to initiate a priority call, the infrastructure equipment reserves (307) a communication resource (127) for the communication unit (112) at a base site (101) of the infrastructure equipment serving the communication unit (112). The serving base site (101) then allocates (309) the reserved communication resource (127) to the communication unit (112) upon the communication unit's initiation of the priority call.

Abstract: A controllable playback device is placed in a mobile station (125) which is capable of playing a recorded announcement to the user of the mobile station (125) when activated by the infrastructure equipment of the cellular communication system. The cellular communication system determines if a voice channel is available (506), and if unavailable, an estimate of a retry time period is performed (512). After the estimate of the retry time period, the system forms and sends a message to the mobile station (125) including the retry estimate (515). The mobile station (125) receives the message, and activates the controllable playback device to announce to the user of the mobile station (125) that the system is fully loaded and that an access attempt at a time related to the retry estimate would likely be successful.

Abstract: An information broadcasting method for a communication system including a plurality of stations. The communication system enables any two of the stations to communicate with one another. The communication system includes a conference trunk having at least four channels. One of the channels is an information broadcasting channel for use only in an information broadcasting operation wherein any one of the stations broadcasts information to all of the stations simultaneously via the information broadcasting channel. All other ones of the channels are conference communication channels for use in conference communication wherein any three or more of the stations communicate with one another simultaneously via any three or more of the conference communication channels.

Abstract: In order to detect the history of movement and current position of a radio set, a mobile communication system stores the current position of movement of a radio set as registered position information together with the position in which the radio set was previously located. The radio set transmits a registered position information request signal when registered position information is requested. When the radio set system receives such a request signal, it transmits to the radio set the registered position information that was stored. The radio set receives and stores this registered position information and displays it on a display unit.

Abstract: A mobile communication network is provided with a plurality of base stations each of which communicates with a plurality of mobile stations, a plurality of base station controllers (BSC) or control stations each of which is connected to a group of base stations, and switching centers each of which is connected to a plurality of BSC's. The BSC's are interconnected by an exclusive network and terminal information of the mobile stations are stored by the respective local service points (SCP) of the BSC's in a decentralized manner. When an authentication processing and the retrieval of location data for a mobile station is to be made by each BSC and in the case where necessary terminal information is not held in the local SCP of that BSC, the BSC broadcasts a request message for transfer of terminal information or vicarious execution of authentication processing to other BSC's through the exclusive network and waits for a response message from a BSC in which the necessary terminal information is held.