Abstract: A system and method for optimizing call setup latency for geographically dense groups including updating client location information using at least one application server while the client moves from one sector to another to provide a location update; identifying and updating parameters including location update information uniquely identifying a sector from which a client is receiving communication service; and determining at least one geographically dense call group; and choosing at least one designated responder to the at least call group. A client per cluster is selected as a designated responder for that cluster and when the server needs to set up a geographically dense group call, a random number is included corresponding to the designated responder for that group in a call setup message.

Abstract: Systems and methods for improving data delivery latency in a wireless communication system are disclosed. The method and system can include transmitting a data over signaling (DOS) message to an access terminal in a first portion of a paging zone estimated to contain the access terminal and paging the access terminal in other portions of the paging zone.

Abstract: An apparatus and method for enabling fast set up for push-to-talk (PT) communications in a wireless communication network. PTT set up related messages are identified through a specially designated header and the messages with the special designated header are transmitted through signaling channels from a radio transmission unit to a mobile device.

Abstract: Systems and methods for hybrid call setup in a wireless communication system are disclosed. A page is sent on a first network informing a target device of a pending communication on a second network. The page also informs the target device a short data burst (SDB) will be sent on the first network. The short data burst (SDB) is sent on the first network containing setup information regarding the pending communication on the second network.

Abstract: In group wireless telecommunication, such as push-to-talk (PTT) calls, a voice communication is broadcast through Internet protocol data packets to other member devices of the PTT group. At least one communication server receives a single communication stream from a communicating wireless device, such as a PTT call, and creates a group communication to all wireless telecommunication devices of the designated group with the broadcast of Internet protocol data packets containing the voice data of the communication stream to one or more wireless telecommunication devices of the receiving group that can receive and handle the packets. Other wireless network infrastructure can be used to assist the communication server in generation and broadcast of the Internet protocol data packets to the receiving wireless telecommunication devices.

Abstract: A system and method for minimizing latency for direct group communications, such as push-to-talk (PIT) calls, among a group of wireless telecommunication devices on a wireless telecommunication network. The wireless telecommunication device selectively requests and then receives an open dedicated broadcast channel for an outgoing communication, which can include a direct group communication stream to a communication server that receives and creates a group communication to all wireless telecommunication devices of the designated group. The wireless telecommunication devices selectively receives a broadcast channel based upon a predetermined probability, and assigns a greater probability of receiving an open broadcast channel for requests to transmit direct group communication streams than for requests open a broadcast channel that are not for a direct group communication.

Abstract: Apparatus and method for reducing latency in push-to-talk communications in a wireless communication network. Time sensitive push-to-talk (PTT) related messages are identified in a specially designated header, so they can be handled differently by radio mobile devices. These messages with the special designated header are transmitted through signaling channels from a radio transmission unit to a mobile device, as opposed to being transmitted as dedicated channel traffic.

Abstract: An apparatus and method for enabling fast set up for push-to-talk (PT) communications in a wireless communication network. PTT set up related messages are identified through a specially designated header and the messages with the special designated header are transmitted through signaling channels from a radio transmission unit to a mobile device.

Abstract: An apparatus and method for determining a sector location of a wireless communication device and transmitting data from a base station to the wireless communication device over a signaling channel in a wireless communication network without establishing a dedicated data access channel. When the base station is ready to send data over a signaling channel to the wireless communication device, the base station first sends a route table update message to the wireless communication device. The wireless communication device sends a response back to the base station without starting any routine to establish a traffic channel. The response is delivered with a sector information to the base station. After receiving the response, the base station transmits the data over the signaling channel to the sector where the wireless communication device is located.

Abstract: A system and method for signaling and delivering group communication data, such as push-to-talk (PTT) setup data, to a dormant wireless telecommunication device across a control channel on a wireless communication network. Each wireless telecommunication device is able to direct a single group communication stream to a designated target group of other wireless telecommunication devices, and the wireless telecommunication device has a dormant state in which the wireless telecommunication devices bridges a control channel with a communication server and an active state in which the wireless telecommunication device bridges a dedicated communication channel with the communication server. The wireless telecommunication device receives group communication setup data though a control channel for incoming group communications, and such delivery occurring without fully bridging a dedicated communication channel to that wireless telecommunication device.

Abstract: The present invention relates to a computer implemented system for transferring data over a master driven TDD/TDMA based wireless network operating with minimum delay in end-to-end transmission by achieving optimum time slot utilization by minimizing the number of baseband packets created for each Link layer packet, where each baseband packet of is a size corresponding to one of a permitted set of capacities ‘C1, C2, . . . Cn’. The system also optimizes sharing of bandwidth, higher link utilization and low baseband packet transmission queue occupancy by adaptive scheduling of the transmission of the baseband packets in the queues. The invention also provides a method and computer program product for the above system.