A location reporting paging communication system comprising space satellites, ground stations and a remote receiving unit adapted to resolve a global position from signals transmitted from a communication transmitter. The subscriber in possession of the remote receiving unit updates the paging network with global positioning information. A caller paging a subscriber in possession of the remote receiving unit may request the global location of the remote receiving unit. The paging network could divulge or block such information from a caller depending on the requirements of the subscriber.

Location reporting satellite paging system with optional blocking of location reporting

An apparatus for transmitting a file with enhanced transmission security through a network includes a file-splitting processor that splits the file into a plurality of message segments and addresses the plurality of message segments to a plurality of addresses assigned to a receiving host. The apparatus includes a message segment transmitter for transmitting the plurality of message segments to the receiving host.

Camouflage of network traffic to resist attack

In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C/I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets.

Method and apparatus for high-rate packet data transmission

Location sharing and tracking using mobile phones or other wireless devices

Various embodiments provide systems and methods capable of facilitating interaction with handheld electronics devices based on sensing rotational rate around at least three axes and linear acceleration along at least three axes. In one aspect, a handheld electronic device includes a subsystem providing display capability, a set of motion sensors sensing rotational rate around at least three axes and linear acceleration along at least three axes, and a subsystem which, based on motion data derived from at least one of the motion sensors, is capable of facilitating interaction with the device.

Controlling and accessing content using motion processing on mobile devices

When any remote unit (113-118) desires to create a talk group, it transmits an inbound message to a group call database (112). The inbound message includes the identity of the requesting communication device, and the participants of the talk group. Upon receiving the request, group the call database (112) provides an outbound message to all members of the newly created talk group giving them a chance to opt out of inclusion into the new talk group. The database (112) then creates a database entry with the new talk group and those remote units that positively responded to the outbound message.

Method and apparatus for establishing a talk group

A communication network ( 200, 300 ) stores ( 502 ) location information for the communication network. A portable device ( 100 ) determines ( 504 ) whether the portable device is in motion. The portable device requests ( 510 ) the location information only when the portable device determines itself not to be in motion. The network sends ( 512 ) the location information to the portable device, in response to the request for the location information from the portable unit.

Method and apparatus in a communication network for facilitating a use of location-based applications

A method (900) of and apparatus for effecting a handoff from a first Internet Protocol (IP) connection (221) to a second IP connection (331) is disclosed. The method includes: communicating a packet data communication between a first station and a gateway using the first IP connection and a first IP address for the first station, the gateway relaying the packet data communication with a second station; setting up the second IP connection with a second IP address for the first station, the first IP connection being a primary connection and the second IP connection being a secondary connection between the first station and the gateway, determining that the second IP connection should be the primary connection between the first station and the gateway; and changing the second IP connection to the primary connection by informing the gateway that the second IP address is the primary address using stream control transmission protocol (SCTP) messages.

Method and apparatus for effecting a seamless handoff between ip connections

Fast call set-up for a call to a multi-mode communication unit (102) is facilitated by a method and apparatus for registering and re-registering priorities with a SIP registrar (111). A list of contacts with first priorities associated with a mode of operation in a first enterprise network (106) is established and used. A switch to second priorities is made when a probability of a switch from the first mode of operation to a second mode of operation in a second cellular network (108) satisfies a threshold. The list of contacts includes a contact having an expiration time for the first mode of operation. A quality factor is determined and the list of contacts is re-registered and the expiration time changed if the quality factor does not satisfy a threshold.

Fast call set-up for multi-mode communication

A table (328) is created (402) for mapping, for ones of a plurality of portable subscriber units (122), a plurality of message types to a corresponding plurality of locations A message matching one of the plurality of message types is then received (404) by a controller (112), the message intended for a portable subscriber unit In response, the controller and the portable subscriber unit cooperate to determine (406) the location of the portable subscriber unit The controller sends (428) the message to the portable subscriber unit when the location matches one of the plurality of locations corresponding to the one of the plurality of message types

Jheroen P. Dorenbosch

Papers

Method and apparatus for establishing a talk group

Method and apparatus in a communication network for facilitating a use of location-based applications

Method and apparatus for effecting a seamless handoff between ip connections

Fast call set-up for multi-mode communication

Method and apparatus in a two-way wireless communication system for location-based message transmission