Motorola Corporation

Bradley Robert Schaefer

Peter J Armbruster

Mark L Shaughnessy

William Robert Worger

Nandakishore A Albal

Thomas G Hallin

George Xenakis

Stephen D Magee

John McFarland Harris

Dean Paul Vanden Heuvel

Steven D Upp

James William Bishop, Jr

James P Redden

Brent M McKay

Derek Alan Oxley

William N Shores

Jill Christine Wheeler

Jose Arnaldo Laboy

Craig Allen Long

Gustavo A Leal-Isla

Nigel M May

Mark A Marick

William J Sugden

James P Krakora

William R Worger

A method for routing bearer traffic (') between 3G networks () and 2G networks () and vice versa uses voice signaling gateways (VSGW)(). The method determines a VSGW nearest the calling party (). The nearest VSGW directly routes () the bearer traffic through the inter-network () to the called party () and avoids the 'tromboning' effect of always sending bearer traffic to the called party's home location.

Method for efficient bearer traffic routing in a communication system

A method for providing dynamic group call among a group of users both wireless (-) and wireline () places the selectability of the call in the hands of an originating user (). An originating user () may make a fixed number of entries (). The originating user () can create a dynamic group call, add a group call list for later execution, add a member to the group call list, or create a dynamic group call list and immediately execute a group call (). The method for dynamic group call also provides for selecting a time to live for each group call entry () in database (). This parameter time to live is directly selectable by the originating user () or the server. In addition, any member to a previous or existing group call may rejoin or reestablish the dynamic group call ().

Method for dynamic group call

A distributed home location register (DHLR) (-) authorizes roaming services agreement electronically for a user () in a foreign network (). A home networkhas a network HLRwhich records the roaming agreement and charges for billing user (). A visitor location register (VLR) () then charges user () for services while in the foreign network () according to the roaming services agreement.

Roaming services using home location register

A proactive speculation method decreases the call setup time for private calls () and selective dynamic group calls (). In a push-to-talk dispatch network () an originating mobile unit () sends a wake-up packet () to the dispatch network (). Prior to initiating the push-to-talk function, the target mobile units () receive a wake-up packet () from network (). Thereby, prior to establishing the push-to-talk function, each of the mobile units in the push-to-talk call have been coupled via RF links. If the originating mobile unit has a current IP address, direct wake-up packets () may be sent.

Push-to-talk call setup for a mobile packet data dispatch network

A personal home location register (HLR) () is modifiable directly by a user. The personal HLR then communicates with a telecommunications service provider () to directly affect changes in the personal HLR. The network HLR () of the telecommunications service provider simply points to the personal HLR of the user.

User controlled home location register

The voice signaling gateway () converts signaling and bearer traffic information between iDEN network () and various other networks (). The voice signaling gateway includes a signaling portion () and a bearer traffic portion (). The voice signaling gateway interfaces with any networks which support session initiation protocol (SIP). Further, the voice signaling gateway is capable of. interworking with both 3G and 2G type networks.

Method and apparatus for interworking dispatch services network

A user terminal () using an internet protocol using session initiation protocol to interconnect a number of user terminals () in a conference call. A conference bridge () or user terminal () detects speech of one of the user terminals (). A 'babble ' timer is started (). The speaker is allowed to continuously speak until silence is detected () or until the 'babble' timer timers out ().

Token passing arrangement for a conference call bridge arrangement

A common services and applications agent () handles a number of input sources of voice and data information (). These sources of voice and data information are converted () to session initiation protocol. The session initiation protocol for the voice and data information is provided to the communication network ().

Common services and applications agent

A dispatch call setup method selects () either a forced dispatch call () or an invite dispatch call (). The originating unit () of the dispatch call may select either option. Depending on how the required target users () respond, the originating terminal has the option to complete the call (). The terminating unit may accept, reject or convert the forced dispatch call (). Further, the target may establish preset preferences which accept, reject or allow user controls for an invite dispatch call ().

Method for joining dispatch calls

A user terminal () initiates an internet protocol using session initiation protocol to interconnect a number of user terminals () in a conference call. Signaling connections (and) are established between one user terminal and each of the plurality of user terminals. Common bearer formats are negotiated among the plurality of user terminals (). If a common bearer format exists (), the conference bridge is established for data (voice) transmission ().

Conference call bridge arrangement

An arrangement for compressing () and uncompressing () system set up messages between a client and a server employing Session Initiation Protocol transmits a template () between client () and server (). A template is pre-placed () by clients or servers with other clients or servers. During execution time when a client requests services by connecting to a server only a minimal template () is transmitted from client to server. The server then reconstructs () the original uncompressed message.

Session initiation protocol compression

For a push-to-talk function in a mobile communication system (), an indication is received () by a user () that the talking floor is available. Next, an uplink temporary block flow is established (). Prior to release of the uplink temporary block flow by the mobile communication system, a refresh message is sent () to hold the uplink temporary block flow. Downlink temporary block flows may also be refreshed by this method, or by the mobile communication system. Then the requesting user may enable the push-to-talk function. These techniques can improve talker arbitration and call setup delays for push-to-talk.

Temporary block flow allocation method

An originating party ( ) places a call through an originating party called control ( ), through a network ( ), through a terminating party call control ( ) to a terminating subscriber ( ). For an inability to complete the connection from the originating subscriber to the terminating subscriber, control is returned from the terminating party call control through network ( ) to the call control logic ( ) of the originating party call control ( ) or directly to the originating subscriber ( ).

Mobile originator call control

A plurality of orbiting satellites ( ), each comprised of an onboard computer ( ). Each of the orbiting satellites and a plurality of ground-based computers ( ) are utilized to perform delay-insensitive functions associated with the orbiting satellites. An ubiquitous data link ( ) is maintained between each satellite and one or more of the ground-based computers. The integrated system is configured to allow a satellite to generate a remote procedure call (RPC), transmit the RPC to a ground-based computer, whereupon the ground-based computer processes the RPC and transmits a response back to the satellite. Delay-sensitive tasks and functions are performed by the computer onboard the satellite; delay-insensitive tasks are advantageously performed by the ground-based computer assets.

Methods and apparatus for using ground based processing resources to support orbiting satellites

The effect of Single Event Upsets (SEUs) occurring in cache memory ( ) utilized in satellites is reduced. The idle time of a processor ( ), utilizing cache memory ( ), is monitored. If processor ( ) idle time reaches a predetermined minimum ( ), cache memory ( ) is engage. When processor ( ) idle time subsequently reaches a predetermined maximum threshold ( ), cache memory ( ) is disabled.

Growing community of inventors

Chandler, AZ, United States of America

Bradley Robert Schaefer