Abstract: A method and system for acquisition of a service provider communications network by a mobile communications device is disclosed. In accordance with an embodiment of a method of the present invention, the method includes storing a control channel designation in a database in the mobile communications device and accessing the control channel designation from the database by the mobile device. The service provider communications network is acquired by the mobile communications device through a control channel associated with the control channel designation accessed from the database. In accordance with an embodiment of a system of the present invention, the system includes the mobile communications device with the database. A control channel designation is stored in the database.

Abstract: A system and method for using the packet data service of a dispatch wireless communication network converts a subscriber's voice to a text message. The system employs offline conversion and verification of the converted text message prior to transmitting over the Internet via the packet data network of the dispatch system. The voice conversion to text is implemented within the mobile subscriber handset and thus requires no modification of the dispatch network.

Abstract: Systems and methods of establishing group calls are provided. Contact index information is synchronized between a communication unit and a contact synchronization server. A group call request message, including index information for one or more contacts, is sent from a communication unit to a signaling server. The signaling server uses the index information to obtain communication unit addresses from the contact synchronization server.

Abstract: A communications system includes a first PTT network, and a second PTT network having a plurality of interoperability gateways. A method for routing a PTT call terminated at the second PTT network includes receiving a PTT call request from the first PTT network, the PTT call request identifying a target subscriber unit on the second PTT network and forwarding the PTT call request to a first interoperability gateway. If the target is located in a region served by a second PTT interoperability gateway, then a redirect message, including an identifier of the second PTT interoperability gateway, is received and the PTT call request is redirected to the second PTT interoperability gateway. An identifier of the target and an identifier of the second PTT interoperability gateway are stored in a cache for directing subsequent PTT calls to the same target to the corresponding second interoperability gateway.

Abstract: Systems and methods for obtaining location information for a communication station in a first domain by a communication station in a second domain are provided. The communication station in the second domain embeds a location request message in a message formatted according to a first communication protocol, and transmits the message formatted according to the first communication protocol to a proxy server. The proxy server removes the embedded request message and forwards it to a location server, which is located in the first domain. The proxy server receives a location response message and embeds it in another message formatted according to the first communication protocol. The proxy server then transmits the another message formatted according to the first communication protocol to the communication station in the second domain, which can remove the embedded location response message.

Abstract: Systems and methods for switching communications across different data link layer protocols are provided. A switch which supports a first data link layer protocol can support differentiated services for a second data link layer protocol without performing routing in the second data link layer protocol. The differentiated services are provided by mapping a connection of the first data link layer protocol onto one of a plurality of connections of a second data link layer protocol. The mapping of frames is based on the connection carrying the frames of the first data link layer protocol and a type of service associated with the frames. The frames of the first data link layer protocol are forwarded to another switch using one of a plurality of connections based on the mapping.

Abstract: A system and method for providing integrated voice quality measurements for wireless networks, based on actual calls made by end devices, are provided. The system includes a plurality of end devices, each of which includes an algorithm for determining voice quality data; an over-the-air server configured to enable voice quality reporting in the end devices; a messaging server configured to receive voice quality reports from the end devices; a voice quality server configured to receive the voice quality reports from the messaging server and consolidate the voice quality reports; and a call data record server configured to combine call records and the consolidated voice quality reports.

Abstract: Several embodiments of an IMS communications network are disclosed. In one embodiment, the network comprises a plurality of dispatch application servers (DAS), an S-CSCF, and an event notification server. The S-CSCF is adapted to receive an IMS registration request from a dispatch client, authenticate the registration request, send a registration confirmation to the dispatch client, and send a notification indicating the registration of the dispatch client to an event notification server. The event notification server is adapted to receive the notification from the S-CSCF, select a DAS, and send a notification to the selected DAS indicating an assignment to provide dispatch service to the dispatch client. In another embodiment, the registration notification to the event notification server is sent from the dispatch client, instead of the S-CSCF.

Abstract: System and method for reducing call setup time of a dispatch communication. In one embodiment, a method includes receiving a message from an originating dispatch device intended for a target dispatch device. The message may be inspected by a base transceiver station for a call request announcement. The method may further include determining if a radio resource is available for the target dispatch device. According to an additional embodiment of the invention, a call request acknowledgement message may be transmitted to the originating dispatch device after a period of time to ensure a guaranteed talk permit. The call request announcement may also be transmitted to the target dispatch device after the period of time.

Abstract: Systems and methods are provided for evaluating an effect of a simulated communication network to media data. The method includes encoding media data to produce a plurality of packets, each packet being associated with a packet index number, a packet size and a packet transmission time. The packet index number, packet size and packet transmission time for each of the plurality of packets can be input to a communication network simulator to create trace packets corresponding to the plurality of packets. The communication network simulator output indicates at least one effect of the simulated communication network to input trace packets.

Abstract: A system and method for multiplexing subchannels in an OFDMA network is provided. The subchannels can be multiplexed by splitting the subchannels in the frequency domain. Alternatively, the subchannels can be code division multiplexed using N orthogonal spreading codes. The subchannel multiplexing increases system capacity for low-rate services, such as voice-based services.

Abstract: A wireless communication system is disclosed comprising a communications network; and a plurality of base transceiver stations (BTS) coupled to the communications network. At one of the BTS is adapted to send traffic data modulated onto orthogonal frequency division multiplexing (OFDM) tones to mobile units, and send control data modulated onto code division multiplexing (CDM) codes to the mobile units. The BTS may be further adapted to send pilot data modulated onto OFDM tones to the mobile units. The transmission of the data may be compatible with HSDPA and/or IP Wireless protocols. Because the modulation scheme for the traffic data is OFDM instead of CDM, higher throughputs may be achieved in an HSDPA and/or IP Wireless-based wireless communication systems.

Abstract: A system and method for operating a user functionality in a mobile communications device is disclosed. In an embodiment of the system, a communications infrastructure provides interoperability between a first communications network utilizing a first technology and a second communications network utilizing a second technology. The infrastructure provides an indicator to a mobile communications device in communication with the first communications network to either activate the user functionality or deactivate the user functionality. In accordance with an embodiment of a method of the present invention, the method includes providing the indicator to the mobile communications device in communication with the first communications network utilizing the first technology by the communications infrastructure. The user functionality is activated if the indicator is provided in a first state and the user functionality deactivated if the indicator is provided in a second state.

Abstract: Systems and methods for enforcing calling restrictions are provided. When a first and second communication station are located in different domains, calling restrictions for a first communication station can be based on a current geographic location of the second communication station. The calling restrictions can be enforced independent of an address/identifier of the first or second communication station. The calling restrictions can be based on the current geographic locations of the first and second communication stations and the allowed geographic area of the first communication station.

Abstract: Systems and methods for enhancing the capacity of base stations are provided. A base station can operate in a time division duplex mode within a first frequency band. When a second frequency band is acquired for the base station's geographic region, a duplexer can be added to the base station. The base station can then operate in a frequency division duplex mode, where the first frequency band is used for base station downlink transmissions and the second frequency band is used for uplink transmissions.

Abstract: Systems and methods for delivering media to media playback devices are provided. When a media playback device requests suspension of a media stream, the media is stored in a storage area associated with the media playback device. A media playback device can then request resumption of the media stream. The media playback device requesting resumption of the media stream can be the same or different from the device requesting suspension of the media stream.

Abstract: A communications system includes a first PTT network, and a second PTT network having a plurality of interoperability gateways. A method for efficiently selecting an interoperability gateway for PTT calls terminated at the second PTT network includes receiving a PTT call request from the first PTT network, the PTT call request identifying a target subscriber unit on the second PTT network and forwarding the PTT call request to a first interoperability gateway. Notification is received if the request has succeeded, and the notification includes an identification of the target and a second interoperability gateway. This information is stored in cache for directing subsequent PTT calls to the same target to the corresponding second interoperability gateway. In one embodiment, the first PTT network is an iDEN network and the second PTT network is a HPPTT network and the PTT call is a HPPTT call.

Abstract: Methods and systems for presenting media content (e.g., scrolling text) on a mobile device are provided. A broadcast may be received from a network via a wireless communication link, the broadcast may include media content (e.g., a text feed) and information (e.g., metadata) associated with characteristics of the media content. The media content may be extracted, and at least one characteristic associated with presenting the media content on the mobile device may be identified. The media content may be presented on the mobile device in accordance with the at least one identified characteristic.

Abstract: A system for posting web logging (blog) messages, retrieving blog messages, and being notified of the posting of blog messages by way of dispatch communications. The system includes a wireless communication system capable of setting up dispatch communications links between subscriber units and a dispatch server. The dispatch server interfaces with a blog server. Using dispatch communications, subscriber units may send messages to the blog server for posting by way of the dispatch server, may receive notification of the posting of messages from the blog server by way of the dispatch server, and may retrieve messages from the blog server by way of the dispatch server.

Abstract: A private wireless network interface provides wireless signaling and protocols of a wireless macro network to allow a consumer to operate over a private wireless network. The private wireless network interface receives wireless signals compatible with a wireless macro network and transmits the signals over a broadband connection to a wireless service provider's wireless macro network. The private wireless network interface allows the use of mobile stations which are compatible with a wireless macro network to operate in a residence and have the signals backhauled over the residence's broadband connection. The private wireless network interface can provide wireless macro network coverage in any location with some type of coupling to the Internet.