| Patent Number |
Title Of Patent |
Date Issued |
| 7239618 |
Single phase local mobility scheme for wireless access to packet-based networks |
July 3, 2007 |
| Local mobility within a subnet is supported by classifying wireless base stations, and the routers used to forward packets to those base stations, within defined domains. Domains are defined to incorporate a subnet having a plurality of base stations. Base stations are used by mobile |
| 6842462 |
Wireless access of packet based networks |
January 11, 2005 |
| A General Packet Radio Service (GPRS) Accessed Extended Mobile Internet Protocol (EMIP) [G-EMIP] network is provided for wireless mobile device access to external packet data networks. Domains are defined to incorporate a subnet of standard GPRS and EMIP network entities accessed thr |
| 6763007 |
Two phase local mobility scheme for wireless access to packet based networks |
July 13, 2004 |
| Local mobility within a subnet is supported by classifying wireless base stations, and the routers used to forward packets to those base stations, within defined domains. Domains are defined to incorporate a subnet having a plurality of base stations. Base stations are used by mobile dev |
| 6654359 |
Wireless access to packet-based networks |
November 25, 2003 |
| Domains are defined to incorporate a subnet including a plurality of base stations and routers. Base stations are used by mobile devices to attach to the wired portion of a packet-based network, such as the Internet, and exchange packets thereover with a correspondent node. Local mobilit |
| 6516000 |
Communications system for transmission of datagram packets over connection-oriented networks |
February 4, 2003 |
| A communications system for transporting connectionless datagrams over a connection-oriented network is arranged to remove the address resolution function and the connection setup function from a sending host and combine them in a third-party connection server in conjunction with channel |
| 6496505 |
Packet tunneling optimization to wireless devices accessing packet-based wired networks |
December 17, 2002 |
| A tunneling optimization is described in which packets are forwarded from a home agent to a mobile device by co-locating a foreign agent corresponding to a mobile device at the mobile device. When a mobile device acquires a new foreign agent, the mobile device notifies the home agent as |
| 6483853 |
Communications system for transmission of datagram packets over connection-oriented networks |
November 19, 2002 |
| A communications system for transporting connectionless datagrams over a connection-oriented network is arranged to remove the address resolution function and the connection setup function from a sending host and combine them in a third-party connection server in conjunction with channel |
| 6434134 |
Dynamic address assignment for wireless devices accessing packet-based wired networks |
August 13, 2002 |
| The number of packet routing addresses utilized within a wired subnet offering wireless services via subnet base stations is reduced by assigning a packet routing address to a wireless device accessing a wired subnet upon power up of the wireless device. A Dynamic Host Configuration |
| 6298039 |
High availability distributed call processing method and apparatus |
October 2, 2001 |
| A method of delivering highly-reliable, fault-tolerant communications services in a telecommunications network of distributed call processing systems. The method advantageously identifies a set of objects within the telecommunications network requiring checkpointing; checkpoints the |
| 6215782 |
Method for reconnecting calls in a wireless telecommunications system |
April 10, 2001 |
| A method for reconnecting calls affected by a loss of synchronization comprises detecting disconnect of a call and initiating a time-out sequence during which reconnection attempts are performed. The reconnection time-out sequence may be incremented a predetermined number of times be |
| 6192250 |
Cluster mobile switching center |
February 20, 2001 |
| A "cluster mobile switching center" (cMSC) is arranged to perform the switching and control functions of a conventional mobile switching center (MSC), including, if desired, the additional functions of a conventional visitor location register (VLR). The cMSC is implemented on distributed |
| 6085086 |
Network-based migrating user agent for personal communication services |
July 4, 2000 |
| The present invention is a user process that resides in network nodes to act as an agent for mobile terminals in, for example, PCS environments. The user process handles negotiation and complex signaling functions for the user, thus reducing the amount of signaling traffic that must trav |
| 6081715 |
Method and system for distributed control in wireless cellular and personal communication system |
June 27, 2000 |
| A system for distributed control in wireless cellular and personal communication systems includes separate servers for performing call control and connection control functions, thereby obviating the need for a mobile switching or other switch to be anchored for the duration of a call |
| 6016319 |
Communications system for transmission of datagram packets over connection-oriented networks |
January 18, 2000 |
| A communications system for transporting connectionless datagrams over a connection-oriented network is arranged to remove the address resolution function and the connection setup function from a sending host and combine them in a third-party connection server in conjunction with channel |
| 6014429 |
Two-way wireless messaging system with transaction server |
January 11, 2000 |
| A two-way wireless messaging system has a messaging network, and a two-way messaging device that originates, receives and replies to messages having dynamic message components to and from the messaging network. A transaction server is located within the messaging network for opening and |
| 5974300 |
Two-way wireless cellular messaging system |
October 26, 1999 |
| A two-way wireless messaging system has a cellular network with a mobile switching center for routing messages to base stations, a home location register for storing profiles and a home location register for storing profiles and location information, and a messaging center for receiving, |
| 5970122 |
Two-way wireless messaging system having user agent |
October 19, 1999 |
| A two-way wireless messaging system includes a messaging network having at least one user agent corresponding to a subscriber of a two-way wireless messaging service. The subscriber receives messages from the messaging network along a first communication channel. The user agent includes |
| 5959543 |
Two-way wireless messaging system with flexible messaging |
September 28, 1999 |
| A system and method for two-way wireless messaging is disclosed. A plurality of messages are stored within a user agent of the two-way messaging network. The messages correspond to those selected by a subscriber of a two-way messaging service. The messages are encoded and include con |
| 5953331 |
Wireless packet system for efficient wide area bandwidth utilization |
September 14, 1999 |
| A telecommunications system is arranged to efficiently route digital information from a mobile network to a Public Switched Telephone Network (PSTN) and vice versa by interposing a packet network between the mobile network and PSTN so that digital information originating from the wireles |
| 5943408 |
Flexible direct signaling system |
August 24, 1999 |
| A direct signaling system for providing system subscribers with the freedom to access service providers of their choice, regardless of their access network arrangement, with substantially minimum change to existing telecommunication software and architecture. The system provides a home |
| 5943334 |
Method of using an intelligent mobile terminal for reconnecting calls in a wireless telecommunic |
August 24, 1999 |
| An intelligent mobile terminal includes a reconnection processor for reestablishing calls affected by a loss of synchronization of signals between the mobile terminal and a serving base station. In the preferred embodiment, the serving base station establishes a reconnection channel |
| 5918158 |
Two-way wireless messaging system |
June 29, 1999 |
| A two-way wireless messaging system includes a messaging network and a two-way wireless messaging device which originates, receives and replies to messages having dynamic message components to and from the messaging network. The messaging network includes a plurality of stored messages a |
| 5659544 |
Method and system for distributed control in wireless cellular and personal communication system |
August 19, 1997 |
| A system for distributed control in wireless cellular and personal communication systems includes separate servers for performing call control and connection control functions, thereby obviating the need for a mobile switching or other switch to be anchored for the duration of a call |
| 5600663 |
Adaptive forward error correction system |
February 4, 1997 |
| A forward error correction system adaptively changes the number of parity bits, bytes or packets transmitted to a receiver, based on previous error patterns experienced recently in the reception of original and parity bits, bytes or packets by that receiver. |
| 5570367 |
Asymmetric protocol for wireless communications |
October 29, 1996 |
| A wireless communications system is arranged to provide data communications services, including error recovery, between at least one wireless end-user device and at least one one base station. The wireless end user device(s) receives(s) from the base station(s) unsolicited messages indic |
| 5563939 |
Method and system for delivering a communication service |
October 8, 1996 |
| A signaling provider network which receives and transmits at least a subset of all signaling information associated with a particular call or communication service, allows the received/transmitted signaling information to be processed independently of the originating or terminating c |
| 5509010 |
Communications signaling protocols |
April 16, 1996 |
| A modular suite of peer-to-peer protocols that are independent of communications network architecture supported, and the type of switching systems (packet-switched or circuit-switched), is used for a broadband and/or narrowband communications network. The protocols are comprised of c |
| 5473679 |
Signaling system for broadband communications networks |
December 5, 1995 |
| A network architecture is designed to allow a communications service subscriber to select a signaling provider independently of a) the transport carriers which control the local loops for particular communications services, and b) the providers of those services. Upon the establishme |
| 5434852 |
Distributed processing architechture for control of broadband and narrowband communications netw |
July 18, 1995 |
| A distributed, server-based communications network architecture delivers broadband and narrowband communications services. In the architecture, various traditional call processing functions, such as switching fabric or channel control, call control, and connection control are separated i |
