Abstract: A mobile communication device, such as a wireless mobile phone, is provided with a unified message function equipped to facilitate a user in interacting with communication messages of different message types supported by the mobile communication device via an unified message box.

Abstract: Disclosed is an apparatus and method for receiving a channel signal using a STTD (Space Time Transmit Diversity) scheme in a CDMA communication system. In the CDMA communication system a transmitter with first and second antennas STTD (Space Time Transmit Diversity)-encodes a channel signal having PC (Power Control) information of a receiver and transmits a STTD-encoded result over first and second antennas, a first antenna signal processor receives a signal transmitted from the transmitter, and processes the received signal as a signal transmitted from the first antenna using a first pattern, a second antenna signal processor processes the received signal as a signal transmitted from the second antenna using a second pattern orthogonal to the first pattern, and an adder combines an output signal of the first and second antenna signal processor, and generates the PC information, resulting in no delay time while detecting such PC information.

Abstract: In an embodiment of a method of the present invention, the method includes the acts of establishing a dispatch multi-party call between a set of communication devices and establishing a sidebar communication between a subset of the set of communication devices. The set of communication devices participate in the dispatch multi-party call and only the subset of communication devices participate in the sidebar communication. In an embodiment of a system of the present invention, the system includes a dispatch network and a set of communication devices in communication with the dispatch network. The dispatch network establishes a dispatch multi-party call between the set of communication devices and a sidebar communication between a subset of the set of communication devices, wherein the set of communication devices participate in the dispatch multi-party call and only the subset of communication devices participate in the sidebar communication.

Abstract: A dispatch communications system is disclosed that facilitates group dispatch communications respectively between subscriber units residing within a first geographical area, subscriber units residing within a second geographical area, and subscriber units residing respectively within the first and second geographical areas. The dispatch communications system includes a first intra-area dispatch communications network to facilitate group dispatch calling between subscriber units residing within a first geographical area; a second intra-area dispatch communications network to facilitate group dispatch calling between subscriber units residing within a second geographical area different than the first geographical area; and an inter-area dispatch communications network to facilitate group dispatch calling between subscriber units residing respectively within the first and second geographical areas.

Abstract: A system includes a remote station and a local station having a receiver. The receiver operates in an unlocked state corresponding to its best lock frequency (BLF). The local station derives data indicative of a ratio of the BLF to a reference frequency of the receiver, and telemeters the data to the remote station. The remote station estimates the BLF based on (i) the telemetered data, and (ii) a predetermined estimate of the reference frequency.

Abstract: A satellite is used to route push-to-send messages among terrestrial base stations. Reduced push-to-send delays thereby may be provided, when a source push-to-send radioterminal is widely separated from a destination push-to-send radioterminal. Satellite routing only may be used when the source push-to-send radioterminal and the destination push-to-send radioterminal are not communicating with a single terrestrial base station or with a group of terrestrial base stations that are proximate one another. A destination base station that is communicating with the destination push-to-send radioterminal may be determined at the satellite, at a satellite gateway and/or at a central server.

Abstract: Frequency modification circuitry may be employed as part of a crystal oscillator circuit to generate a reference signal with adjustable frequency. The frequency modification circuitry may be implemented as part of a crystal oscillator circuit that includes digitally controlled crystal oscillator (“DCXO”) circuitry and a crystal. The frequency modification circuitry may adjust the frequency of the reference signal in response to one or more frequency control signals. In one example, the frequency modification circuitry may include variable capacitors such as one or more continuously variable and/or discretely variable capacitors for providing coarse and/or fine adjustment of the reference signal frequency.

Abstract: A portable telephone which enables operations other than transmission and reception functions, such as retrieving telephone numbers, creating e-mails, playing games, without emitting strong electromagnetic waves even in areas where communication by a portable telephone is prohibited, thereby preventing occurrence of misunderstanding by or disturbance to a third person.

Abstract: A method for power control of a wireless communication device (2) comprises the steps of defining the transmission power of at least one transmitter (12) of the wireless communication device (2), defining a power index (POWt) on the basis of the transmission power of the transmitter (12), and selecting at least one limit value. The power index (POWt) is compared with the limit value and, on the basis of the comparison, it is deduced whether there is a need to adjust the transmission power of the wireless communication device (2). The transmission power may then be adjusted accordingly. A related wireless communication device and a system shown.

Abstract: Apparatus, and an associated method, by which to facilitate re-establishment of a traffic channel upon which to communicate pursuant to a communication session, such as a push-to-talk communication session, with a mobile station. The mobile station is maintained in a non-slotted, or other higher-power, mode subsequent to release of a traffic channel to facilitate speedy re-establishment of the traffic channel upon a request for the re-establishment. A selector selects a time period during which the mobile station is maintained in the mode, and a notification message is generated for communication to a network part of the radio communication system to identify the time period.

Abstract: A radio link controlling apparatus configured to maintain communication quality at the time of setting a communication line. The radio link controlling apparatus includes a communication request receiving device for receiving a communication request including information about a service type, transmitted from a mobile terminal; a communication start timing determining device for determining communication start timing by the communication channel based on the information about the service type in the communication request received by the communication request receiving device; a control signal generating device for generating a control signal including the information of the communication start timing determined by the communication start timing determining device; and a control signal transmitting device for transmitting the control signal generated by the control signal generating device, to the mobile terminal by the control channel.

Abstract: Method and apparatus for data packet transport in a wireless transmission system supporting broadcast transmissions. A trigger recognized at the transmission node initiates a broadcast transmission, and the resultant set up of a transmission path. A termination trigger then indicates that the transmission node is not serving users desiring the broadcast transmission, and in response the transmission path is shut down. In one embodiment, a multi-cast call, such as a group call, may be transmitted to active users via uni-cast channel(s) or multi-cast channel(s) based on a predetermined criteria, such as number of active users.

Abstract: A method for providing a local cordless-type service comprises the steps of receiving subscriber neighborhood zone selection input so that a mobile telephone equipped subscriber may place or receive calls for a fixed rate, for example, per month without having to pay radio frequency air time charges any time they are located within their selected subscribed-to zones. If the subscribed-to zones are adjacent to one another and the mobile subscriber roams from one zone to another, the subscriber may continue their free call uninterrupted and without paying air time charges. However, when the subscriber roams outside their subscribed-to zones they may be switched from the present local cordless-type services to conventional personal communications services and pay air time charges. However for an active call, no air-time charges are incurred as the user transitions between the cellular/DPCS environment and the local cordless service environment.

Abstract: A communication system (100) for bridging talk groups includes private network communication devices (102) operating within a private network system, and public network communication devices (110, 122, 112) operating within a public network system. At least one communication subsystem (104) is operable with both the private and public network systems. The communication subsystem (104) relays information between the private network communication devices (102) and the public network communication devices (110, 122, 112).

Abstract: A novel mobile unit which communicates with a new and advantageous base station. The mobile unit includes a system for generation of position information and a transceiver for transmitting the position information. In the preferred embodiment, the transceiver is a CDMA system and the system for generating position information includes an arrangement for receiving a GPS signal. In the preferred embodiment, a GPS assisted arrangement is employed which is adapted to receive a signal from an airborne platform as well as from a satellite based platform. The inventive base station is adapted to receive position information from a remote unit and provide a received position signal in response thereto. The novel base station is further equipped with a mechanism for directing a beam in response to the received position signal.

Abstract: Techniques to implement MBMS services in a wireless communication system. In one aspect, a method is provided for processing data for transmission to a plurality of terminals. Frames of information bits (which may have variable rates) are provided to a buffer implementing a matrix. The matrix is padded with padding bits based on a particular padding scheme to support variable frame rates. The frames are then coded based on a particular block code to provide parity bits. The frame of information bits and the parity bits are then transmitted to the terminals. In another aspect, a method is provided for controlling the transmit power of a data transmission to a plurality of terminals. In accordance with the method, TPC streams are received from the terminals and processed to obtain a stream of joint power control commands used to adjust the transmit power of the data transmission.

Abstract: The invention reduces the time required for automatically searching for channels on a device receiving channels of various widths. The invention proposes a channel detection process which carries out successive passes with frequency spacings corresponding to channels of a specific width. During each pass, only the channels corresponding to the specific width are searched for. The invention also pertains to a multichannel reception device comprising the means required for the operation of the process.

Abstract: An object of this invention is to make it possible to confirm the safety of persons who have the possibility of encountering the damage of the disaster when the disaster occurred. This system receives information of the disaster occurring region A and information of subscribers in the disaster occurring region A, and stores it in the disaster region subscriber table storage unit. Then, it transmits the disaster notice to the subscriber terminal in the disaster occurring region A. When it receives information of the position of the subscriber terminal or a voluntary safety confirmation response from the subscriber terminal in the disaster occurring region A, it judges whether the subscriber is in the safe state, and stores the judgment result in the disaster region subscriber table storage unit 45.

Abstract: A hybrid satellite communications system provides communications, particularly Internet access, to computer users. The hybrid satellite communications system includes a satellite system and a terrestrial communications system. The satellite system includes two transceivers. The first transceiver receives and transmits a first set of signals received from the terrestrial communications system to a plurality of user units. In reverse fashion, the satellite systems second transceiver receives a second set of signals in a second frequency band from the user units and transmits those signals back to the terrestrial communications system. The first set of signals (downlink signals) are of much higher frequency than the second set of signals (uplink signals). Preferably, the first set of signals are relayed by a Direct Broadcast System (DBS) satellite in a frequency band between 12.2 GHz and 12.9 GHz, while the second set of signals are relayed by a Mobile Satellite System (MSS) satellite operating between 1.

Abstract: A receiver includes a rear yoke inside a housing, a first acoustic paper bonded to an annular base of the rear yoke to block a rear open side of a tubular body of the rear yoke, an annular magnet supported on the annular base around the tubular body, a front yoke disposed at a front side of the magnet, a vibration diaphragm stretched in front of the yokes, a voice coil suspended in an annular space between the yokes, a tubular cushion fitted into the tubular body of the rear yoke, and an annular cushion (or annular step) set between the magnet and the tubular body, and a second acoustic paper covering an air hole at a rear side of the housing.