Abstract: Systems and methods for reducing latency in a group communication system including transmitting an access probe; establishing predetermined criteria relating to communication parameters; and setting a retransmission timeout value at a communication device based upon the predetermined criteria, wherein the retransmission timeout value is an amount of time the communication device waits for an acknowledgment following the transmission of the access probe before it initiates retransmission of the access probe.

Abstract: In half-duplex communications over a wireless network, a user from a private organization sends the request for half-duplex communication through a private server controlled by the private organization. The private server sets up a private account with the wireless carrier and the user communicates via the private account.

Abstract: The present invention relates to a solution for efficient handling of radio resources in communication devices in a wireless communication network. In the solution a subset of available antennas to be used is chosen using a method for determining a singular valued metric from a sub matrix related to a full channel matrix. Sub-channel matrices are chosen by deducing the metric and comparing to other sub-matrices. Preferably the best sub-channel matrix is used to determine a suitable full channel matrix to use in communication and this full channel matrix is communicated to each involved communication device.

Abstract: Disclosed is a mobile communication device. The mobile communication device includes a first body section having a keypad arranged on a first upper surface thereof; and a second body section connected to the first body section and having a display screen arranged on an upper surface thereof, the second body section linearly sliding from a first position where the second body section overlays the first body section to a second position where the second body section exposes a first part of the keypad, the first part providing input functions of numerals and letters, the second body section rotating while facing the first upper surface from the first position to a third position where the second body section fully exposes the keypad. The communications device can selectively provide QWERTY keyboard arrangement, thereby allowing increasingly integrated electronics and complex features sufficiently utilized and long text messages easily edited.

Abstract: Antenna sharing techniques are described. A mobile computing device may comprise an antenna, a switch to couple to the antenna, and multiple transceivers to couple to the switch. The mobile computing device may also comprise an antenna management module to couple to the switch and the transceivers. The antenna management module may control the switch to electrically connect one of the transceivers to the antenna. Other embodiments may be described and claimed.

Abstract: The present invention relates to a method of reducing setup delay for an uplink message from a user terminal (UT) in a delay sensitive service in a radio telecommunications system, such as a push to talk service (PoC), by predicting that delay sensitive data is about to be transmitted, sending, as a response to the prediction, a connection setup signal from the terminal to a basestation subsystem (BSS) in order to set up an early uplink radio connection, and transmitting the delay sensitive data via the early uplink connection. There is also provided a user terminal (UT) and a radio telecommunications system.

Abstract: To provide a solution for efficient and large-scale characterization of push-to-talk service performance in a mobile communication environment there is described a method and apparatus for passive evaluation of push-to-talk traffic in a communication network. After capturing (S10) data transactions in the communication network there follows a step of extracting (S12) interpretations of data transactions being relevant for push-to-talk, traffic classes, and users, from captured data transactions. Then a correlation of extracted interpretations of data transactions being relevant for push-to-talk, traffic classes, and users is stored (S14) in a traffic data base. This allows to calculate (S16) at least one performance indicator with respect to at least one selected push-to-talk session as a function of information stored in the traffic database.

Abstract: A combination module includes an antenna, an audio component, a first carrier and a second carrier. The antenna is attached to the first carrier. The audio component is attached to the second carrier. The first carrier and the second carrier are integrally formed together.

Abstract: A mobile device having a messenger function and a method for supporting such a messenger function is provided. When a messenger function is activated, the mobile device receives messenger data from a presence server. This messenger data includes state information about other mobile devices connected to the presence server. Then the mobile device classifies the received message data according to at least one criterion among a device, a time, and a modified time, and then stores it as history data. Also, at a user's request, the mobile device outputs the history data of a selected other mobile device.

Abstract: The present invention provides methods, systems, and devices for selective override of do-not-disturb in a wireless communications network, in which a user is provided with the option to query and modify the ignoring of do-not-disturb (DnD) for certain reasons. In some embodiments, DnD is ignored when an incoming call is an urgent call. In other embodiments DnD is ignored when an incoming call is an emergency call. In some embodiments a call processing server manages and performs selective override of do-not-disturb in an OMA compatible system. In yet other embodiments, a mobile device is adapted to send to a dispatch network a request to query or set an ignoreDnD flag, along with associated ignoreDnD reasons.

Abstract: A method of managing a Push-To-Talk over Cellular communication session includes establishing, with a first user equipment, a Session Initiation Protocol Push-To-Talk session that includes a Session Initiation Protocol Push-To-Talk server and at least one second user equipment. The method also includes designating, with the first user equipment, either the Session Initiation Protocol Push-To-Talk server or one of the at least one second user equipment, to act as an arbiter of a media stream. The method further includes transmitting, with the first user equipment, while engaged in the Session Initiation Protocol Push-To-Talk session, the media stream directly to at least one of the at least one second user equipment without receiving a transmit instruction from the Push-To-Talk server.

Abstract: Provided are a system for establishing and managing a Push To Talk (PTT) over Cellular (PoC) session between PoC clients supporting various media types, a method thereof, and a User Equipment (UE) therefor. When a PoC client performing an Open Mobile Alliance (OMA) PoC multimedia call service supports a plurality of media types, and media types supported by PoC clients are not common, a PoC session can be established to support only media types set to be transmitted in a first response message after the session is established. In addition, a method of efficiently managing a session by updating the session when a newly supported media type is provided or when a recipient of an existing media type is changed is suggested.

Abstract: A method for radio frequency multicasting and a multicast site architecture are provided. The method includes assigning a different traffic multicast Internet Protocol (IP) address to each of a plurality of groups of LMR users and encapsulating the LMR content within IP packets. The method further includes transmitting the IP packets to one of the plurality of groups of LMR users using at least one of the assigned traffic multicast IP addresses.

Abstract: A method, system, and user device are provided for provisioned talkgroup identifier discovery in a dispatch or similar network, in which a user is provided with a list of talkgroups provisioned for the user device. In some embodiments a new request message sent from the user device is implemented to effect a response from the network providing the information. In other embodiments the provision of the information is provided by a new message automatically sent from the network to the user device at a specific time. In yet other embodiments, the user device attempts to join every group to test which groups are provisioned for it.

Abstract: The application discloses a method and apparatus for activating an emergency button on a portable radio. The emergency button is located on a portion of the portable radio that can be hit against a substantially hard surface by a user to transmit an emergency alert signal. Activation of the alert can further include pressing a push-to-talk (PTT) switch in conjunction with hitting the portion of the portable radio having the emergency button.

Abstract: A cellular phone includes a first case and a second case, which are connected in a foldable manner through a hinge. When the cellular phone is in a folded state, a second display unit displays an image with the side (upper side) closer to the hinge as the upper side. Accordingly, the user can hold the second case of the cellular phone in his/her hand regardless of whether the cellular phone is in a folded state or in an open state. The user can easily switch between a folded state and an open state with respect to the first case and the second case.

Abstract: A web programmable telephone and a method for operating a web programmable telephone are disclosed. In one embodiment of the present invention, a voice module of a wireless household telephone is controlled by an internal web module that can retrieve and execute data operations from a remote portal or server thus adding data functionality to the conventional functions of a telephone. The programmable web module controls all functionality of the web programmable telephone so that every function of the telephone can be programmed and customized by a user.

Abstract: An external speaker/microphone apparatus for a radio transceiver includes a speaker, a microphone, a push-to-talk switch, and an emergency switch. The apparatus further includes an encoder module operatively coupled to the push-to-talk switch and the emergency switch and configured to generate a digital identification each time the push-to-talk switch is pressed, and a digital emergency signal and digital identification when the emergency switch is pressed. The apparatus also includes a connector configured to operatively couple audio to the speaker from the transceiver, a combination audio signal from the microphone and the encoder module to the transceiver. The connector is further configured to operatively couple the push-to-talk switch and the emergency switch to the transceiver so that the transceiver is switched to a transmit mode when either the push-to-talk switch or the emergency switch is pressed.

Abstract: A push-to-talk (PTT) mobile station having a PTT ready mode, the mobile station having a controller adapted for executing computer program code; a memory connected to the controller for storing computer program code; computer program code stored in the memory and executable by the controller for operating the mobile station in the PTT ready mode selected from a plurality of PTT ready mode techniques, for establishing a PTT session; and a radio subsystem connected to the controller and the memory, the subsystem being configured for enabling the PTT mobile station to operate in the PTT ready mode for establishing one of the PTT session, PTT traffic, or both the PTT session and PTT traffic.

Abstract: A communication apparatus comprising a communication module that serves as Data Circuit-terminating Equipment used in a radio packet communication network; an auxiliary circuit board on which said communication module is mounted; a main circuit board on which a communication controller is mounted; and a signal line for connecting said main circuit board to the auxiliary circuit board detachably; wherein said main circuit board further comprises a detecting means for detecting a type of the connected communication module based on a pattern of a signal status on the signal line at a start-up, and said communication controller performs a communication control operation in accordance with a result of detection by the detecting means.

Abstract: There is an antenna, three feed ports, two switches, and two impedances. In an embodiment, the first and second feed ports interface respective FM transmitter and FM receiver, and the third feed port interfaces Bluetooth, WLAN and/or GPS radios. The two switches are disposed along the antenna. A first throw of them renders a balanced mode for the antenna seen by the first feed port and a second throw renders an unbalanced mode for the antenna seen by the second feed port. The two impedances are disposed and configured such that the antenna, for signals in a second frequency band at the third feed port and which are impeded by the two impedances, is an unbalanced mode for the first throw of the switches and is an unbalanced mode for the second throw of the switches. Also detailed is a method for making an electronic device having such an antenna.

Abstract: A base unit and a handset comprise a wireless part, a control part, and a transmission (151) and reception part (150), respectively. Communications are switched by either of the two ways: PTT switching and tone generation in the base unit, and tone detection in the handset or PTT switching in the base unit, and voice detection in the handset. It is preferable that the transmission (151) and reception (150) part of the handset includes a single transducer type headphone. It is also preferable that photo-coupler (41, 43) and a photo-switch (42) are provided at connection point of signal paths between the transmission (151) and reception part (150), the control part, and between the control part and the wireless part.

Abstract: A mechanism and method for initiating a packet-based service session in a public mobile communication system, especially a service session for a group of users are disclosed. In order to accomplish a service initiation even if the terminals of the users are in a disconnected state with respect to the packet-switched domain of the mobile communication system, a triggering message is sent from one user terminal to the other terminals of the group. The triggering message includes information about a packet-based service session to be started, and it may be a message that can be sent via the mobile communication system to a mobile terminal that is in a disconnected state with respect to the packet-switched domain. In response to the reception of the triggering message, the other terminals are brought to a state allowing reception of packets belonging to the packet-based service session. When necessary, this feature involves establishing a connection from the other terminals to the packet-switched domain.

Abstract: A method and computer program product for testing using asynchronous automated virtual agent behavior is presented. A communication including one of a web-based communication and a telephony-based communication is received at a contact center. The communication is responded to by a virtual agent simulating actions of an agent in a coordinated, asynchronous manner. The virtual agent is capable of providing a response to the web-based communication and to the telephony-based communication. At least one parameter of said contact center is measured and the results are presented to a contact center manager.

Abstract: A system and method for providing an user the ability to roam onto a peer Integrated Digital Enhanced Network (iDEN) Network. An iGW supports the passing of Dispatch registration information back to the users home network. The iGW will also support and assist in setting up Dispatch Calls between the two iDEN Networks, and vice versa. Exemplary embodiments of the present invention also support roaming from another technology that supports Dispatch Services, where if a iDEN subscriber with a dual mode phone (i.e., iDEN & GSM), was to roam onto another carrier with a different technology but with Dispatch capabilities, the iDEN subscriber is able to register on the roaming carrier's network. The iGW is capable of receiving the registration update from the roaming network and updating the iDEN Network with the location of the iDEN Subscriber.

Abstract: The operation of a vehicle electronic module is influenced by vehicle-state received on a vehicle communication bus. The electronic module analyzes vehicle-state data that includes information about the vehicle's environment. The electronic module improves or maintains electronic module performance by adjusting communication processing parameters to improve driver or passenger communication.

Abstract: A method for providing information about a push-to-talk communication session includes facilitating a push-to-talk communication session among a plurality of endpoints and receiving from a first endpoint of the plurality of endpoints a request for floor control comprising a request to transmit communications in the communication session. The method includes, in response to receiving the request for floor control, providing to the first endpoint a signal communication indicating a status message and that the first endpoint has been granted floor control in the push-to-talk communication session.

Abstract: The present invention is directed to a system and method in which real-time ubiquitous imaging is feasible in local areas, such as inside a clinic, hospital room or doctor office. This is achieved by designing a wireless network having a central processing server with, for example, distributed broadband acquisition and video bus capability. Remote access is possible using store-and-forward image transfer over a wide area network. With these capabilities, a physician can use a handheld transducer (such as an ultrasound transducer) as a basic tool to facilitate diagnostic decisions similar to the way a stethoscope is used today.

Abstract: A method to selectively rendering a communication at a receiving communication device comprises receiving a communication and determining whether an association exists between the receiving communication device and a source of the communication. If an association does not exist between the receiving communication device and the source of the communication, rendering the communication at the receiving communication device or distributing the communication to the receiving communication device in order for the communication to be rendered at the receiving communication device. If an association does exist between the receiving communication device and the source of the communication, preventing the communication from being rendered at the receiving device.

Abstract: A communication system comprising: at least one first communication device configured to communicate in half duplex mode using a first encoding-decoding format; at least one second communication device configured to communicate in half duplex mode using a second encoding-decoding format; a third communication device configured to communicate in half duplex mode using the first format; a fourth communication device configured to communicate in half duplex mode using the second format; wherein the third and fourth communication devices are configured to communicate with each other in half duplex mode using a third encoding decoding format.

Abstract: A Push-to-X over Cellular (PoC) server (351) receives a server registration message (301) for a first called device from a second server. The PoC server (351) receives a PoC invitation message (310) with PoC preferences and a message (313) from an originating device (311). The PoC preferences determine what device to call first (e.g., a mobile device 315, 317) and how many hops the call can be forwarded (e.g., to a voicemail server) if the first-attempted device is not available, before discontinuing the connection. If a trigger, such as time elapsed, occurs for the first-attempted device (350) and the PoC preferences permit, the PoC server (351) sends an invitation message (360) to the second server (391). If the second server (391) is a recording server, the invitation message (360) includes a message (363) from the originating device that is compatible with the capabilities of the recording server (391).

Abstract: A hearing communication device with wireless components is provided. One aspect of this disclosure relates to hearing communication devices, which include, but are not limited to, hearing aids and other hearing assistance devices. According to an embodiment, the device includes an enclosure and at least one microphone within the enclosure. The device also includes an amplifier, a speaker, and a signal processing circuit within the enclosure. In various embodiments, the device includes a power supply, such as a battery, electrically connected to the at least one microphone, the amplifier, the speaker and the signal processing circuit. In varying embodiments, at least one of the at least one microphone, the amplifier, the speaker and the signal processing circuit is adapted to communicate wirelessly. Other aspects and embodiments are provided herein.

Abstract: A method and system for guaranteeing a seamless session when replacing a PoC terminal in a PoC system is provided, in which a currently busy PoC client can be replaced in an existing busy PoC session using a PoC compliant client capable of connecting the PoC session, thereby preventing a transmitted media stream of the running PoC session from being lost when the PoC client is replaced. The method includes transmitting, by an arbitrary PoC user, a message for replacing a terminal from a user terminal to a session management server while maintaining the session; receiving, by the session management server, the replacement request message, and transmitting an INVITE message to a terminal to be replaced, or a target terminal; and receiving, by the target terminal, the INVITE message, and media through an existing session. In a situation where there is a need to replace the PoC terminal according to change of the media for the PoC call, request of mobility, etc.

Abstract: A cellular phone includes a first case and a second case, which are connected in a foldable manner through a hinge. When the cellular phone is in a folded state, a second display unit displays an image with the side (upper side) closer to the hinge as the upper side. Accordingly, the user can hold the second case of the cellular phone in his/her hand regardless of whether the cellular phone is in a folded state or in an open state. The user can easily switch between a folded state and an open state with respect to the first case and the second case.

Abstract: A method and apparatus for reducing access delay in push-to-talk (PTT) over Cellular (PoC) communication sessions is provided in a wireless communication device (120) including a quality level controller (230) which controls the quality level at which the transmit talkburst controller (226) provides talkbursts to transmitter circuitry (206). A processor (208) signals the quality level controller (230) and the transmit talkburst controller (226) to provide a first talkburst to the transmitter circuitry (206) for transmitting at a first quality level (310), and thereafter signals the quality level controller (230) to adjust the quality level from the first quality level to a second quality level (314) so that the transmit talkburst controller (226) will provide at least one subsequent talkburst to the transmitter circuitry (206) for transmitting at the second quality level (316).

Abstract: A hardware-centric medium access control (MAC) device comprises a control plane module and a hardware media access planed module. The control plane module is for providing control functions of the hardware-centric MAC device. The hardware media access plane module communicatively coupled to the control plane module is for performing real-time data communication functions without requiring a microprocessor.

Abstract: The present invention provides a wireless communications system comprising a first radio transceiver configured to communicate on a first radio channel, a second radio transceiver configured to communicate on a second radio channel, a first base transceiver unit (BTU) configured to communicate with the first radio transceiver, a second BTU configured to communicate with the second radio transceiver, and a client transceiver unit (CTU) configured to communicate with both the first BTU and the second BTU. The CTU is thereby configured to communicate on the first radio channel via the first radio transceiver and the first BTU. The CTU is also configured to communicate on the second radio channel via the second radio transceiver and the second BTU. The CTU comprises at least one speaker for enabling a user to listen to communications on the first and second radio channels concurrently.

Abstract: The present invention relates to synchronizing a terminal and a server in a shadow area of service in a push-to-talk (PTT) service system. An alive report packet is periodically transmitted to a server by a terminal having no permission to send a talk burst. A talk burst idle packet is periodically transmitted to each session-established terminal by the server in an idle state. Sessions are ended between each terminal and server if either the alive report packet or the talk burst idle packet are not received for a certain time. Accordingly, synchronization between the server and the terminal is periodically certified, unnecessary traffic generated due to inconsistent synchronization is decreased, and quality of service is enhanced.

Abstract: Providing announcements for communication sessions includes facilitating the communication sessions among endpoints comprising a half-duplex push-to-talk endpoint. It is established that a trigger event has occurred at the half-duplex push-to-talk endpoint, where the trigger event indicates an activity status of the half-duplex push-to-talk endpoint. One or more announcements associated with the trigger event are identified. The one or more announcements are provided to at least a subset of the endpoints.

Abstract: Systems and methods are provided for controlling transmit channel utilization in systems providing walkie-talkie-like communications to wireless devices. Parameters such as a maximum talk time and back off time are provided to each wireless device to control how long they can continuously occupy the talk channel, and to control how soon after releasing the talk channel they can again access the talk channel.

Abstract: A method, apparatus and system with an autonomic, self-healing polymer capable of slowing crack propagation within the polymer and slowing delamination at a material interface.

Abstract: A method of facilitating push-to-talk (PTT) communications between a server device and a client device using SIP-based messaging, the server device being in communication with a media server. The method includes receiving in the server device from the client device a SUBSCRIBE message for subscription to a push-to-talk group, the SUBSCRIBE message including media information of the client device, storing in the server device the media information of the client device, and sending from the server device to the client device a NOTIFY message, the NOTIFY message including media information of the media server for storage by the client device.

Abstract: The present invention provides a method of terminal PTT registration based on CDMA trunking system and the system thereof, comprising: a user terminal is powered and a normal CDMA registration flow is completed, and afterwards the value of a PTT registration message counter is initialized; the user terminal sends a PTT registration message to a dispatching sub-system (server) and starts a PTT registration timer; and a corresponding process is performed according to the response message from the dispatching server, which is the reception of the trunking registration or the rejection of the trunking registration. Therefore the terminal with CDMA trunking function can avoid the problem caused by a failed PTT registration.

Abstract: A modular solid-state MMW power source based on a topology of the lens array amplifier provides both the flexibility to scale output power and effective thermal management. The modular power source includes a single submodule that uses one or more power dividers and one or more solid-state amplification stages to divide and amplify an RF input signal into R amplified RF signals. The submodule is mounted (suitably in the X-Y plane) on the surface of a heat sink, suitably coupled to a cold backplane, to remove heat. R 1:N low loss power dividers route the amplified RF signals to R*N radiating elements. Each of the 1:N power dividers suitably reside in the X-Z plane and are stacked in the Y direction to provide a planar output of the R*N radiating elements in the Y-Z plane. Placement of the amplifier chips on the single submodule decouples the number of amplifier chips, hence output power, from the number of radiating elements.

Abstract: A cellular phone includes a first case and a second case, which are connected in a foldable manner through a hinge. When the cellular phone is in a folded state, a second display unit displays an image with the side (upper side) closer to the hinge as the upper side. Accordingly, the user can hold the second case of the cellular phone in his/her hand regardless of whether the cellular phone is in a folded state or in an open state. The user can easily switch between a folded state and an open state with respect to the first case and the second case.

Abstract: Provided is a portable device using a digital walkie-talkie module, which includes: a radio frequency unit which forms a call channel based on a mobile communications system; a digital walkie-talkie module which forms a communications channel based on a public frequency band; an input unit which generates an input signal for activation of at least one of the radio frequency unit and the digital walkie-talkie module; an audio processing unit which outputs at least one of an audio signal received by the radio frequency unit and an audio signal received by the digital walkie-talkie module, and collects an inputted audio signal and sends the collected audio signal to one of the radio frequency unit and the digital walkie-talkie module; and a controller which controls processing of a digital signal sent from the digital walkie-talkie module and outputs the processed digital signal to the audio processing unit, or to process an inputted audio signal and send the processed audio signal to the digital walkie-talkie m

Abstract: An integrated wireless antenna/transceiver module that has particular application for use on a vehicle. The module includes a plurality of antenna radiating elements integrated on a circuit board where a separate radiating element is typically provided for each wireless application desirable for the particular vehicle. The module further includes a separate transceiver integrated on the circuit board where each transceiver is electrically coupled to a particular radiating element. Each of the transceivers is also electrically coupled to a local area network hub that receives signals from the transceiver, where the hub multiplexes the signals onto a digital interface to be sent to the particular application in the vehicle.

Abstract: The present invention relates to a group communication solution in a wireless communication network comprising at least one base station (5) and a plurality of terminals (1, 2, 3, 4) communicating wirelessly with the base station and where the terminals has at least partly identical identity references in order to be part of a multicast protocol push to talk group.

Abstract: A portable GPS/radio unit (10) communicates over a wireless radio network (12) with at least one other such unit. The unit (10) may transmit radio signals over the network (12) indicative of the unit's location. The unit (10) includes a single, push-to-talk button (38) that may be pressed to both transmit a voice communication and to initiate transmission of location data. The unit (10) also includes a “polling” function that requests location data from other units, an auxiliary coding system that codes or encrypts all transmitted data, and an emergency message feature that facilities the transmission and receipt of emergency messages.

Abstract: A group management framework and methodology for managing symmetric groups using peer-to-peer network communications. Group management is distributed throughout the group members of the peer-to-peer network, and group information is mirrored in each of the members of the group. The framework facilitates management of group member lists, provides group communication capabilities for external applications, and security for the group communication without the need for intermediary servers to provide services.