Telcordia Technologies, Inc.

Other

Toshiba America Research, Inc.

Yasuro Shobatake

Shinichi Baba

Faramak Vakil

Ashutosh Dutta

Jyh-Cheng Chen

Subir Das

Anthony McAuley

The present invention is directed to a mobility management protocol for supporting real-time and non-real-time multimedia applications on mobile stations of third generation internet protocol (3G-IP) networks. The present invention utilizes as well as extends the session initiation protocol (SIP) to provide for domain hand-off (i.e., roaming) and subnet hand-off (i.e., macro-mobility) so that users can access the network from any location using their own mobile station as they roam across different 3G-IP networks. The present invention supports mobile transmission control protocol (TCP) applications without modifying TCP. More specifically, disclosed herein is: a novel use of the SIP INVITE method for IP address binding; a novel use of the SIP INFO method to provide a means of profile verification and IP address binding; a novel use of the SIP REGISTER method to allow a SIP registrar to obtain a new IP address from a Dynamic Host Configuration Protocol (DHCP) server on behalf of the mobile; and an inventive entity called a SIP_EYE Agent that maintains a record of ongoing TCP connections and releases within the mobile.

Method and system for host mobility management protocol

The Dynamic Registration and Configuration Protocol (DRCP) provides a framework for registering and passing configuration information to roaming mobile hosts. DRCP is compatible with DHCP can switch to using DHCP protocol if only DHCP servers are present in the network. Most importantly, DRCP allows rapid configuration by moving address consistency checking from the critical path. Other novel features of DRCP allow: a) clients to know when to get a new address independent of the layer-2 access technology, b) efficient use of scarce wireless bandwidth, c) clients to be routers, d) dynamic addition or deletion of address pools to any DRCP node, and e) message exchange without broadcast.

Method and system for dynamic registration and configuration protocol

A system and method for communicating across various communication platforms is disclosed. The system includes a mobility manager that includes a database that stores the alias of terminals on other platforms for addressing from a first platform. Through use of the disclosed system and method, communication across platforms is enabled while minimizing modifications needed to further the communication pathways.

Method and apparatus for enabling and monitoring mobile communication across platforms

Growing community of inventors

Morristown, NJ, United States of America

Yasuro Shobatake