Telefonaktiebolaget Lm Ericsson (publ)

Sven Anders Borje Svensson

George Foti

Henrik Basilier

Martin Reichelt

Vincent B Baglin

Prashanth Sharma

Hai Le

Sorin-Arthur Surdila

Martin E Reichelt

The hybrid mobile terminal is engaged in an existing call through a serving one of a circuit switched or packet data wireless networks. The mobile terminal places a new call through the target one of the wireless networks, the new call having a predetermined called party identifier. In response to the called party identifier, the call is converted to a loop-back call directed to the mobile terminal through the serving wireless network, establishing a call path through the target wireless network. The mobile terminal accepts the loop-back call, and directs the existing call to connect to the call path through the target wireless network. The existing call through the original network is then dropped, effecting an inter-system handoff from the serving to the target wireless network.

System and method for call handoff between circuit switched and packet data wireless networks

An access node anchoring a connection to, e.g., a PDSN in a core network establishes a session with a mobile station and assigns the mobile station an identifier such as a UATI. The anchor node sends the UATI to the PDSN, such as in a GRE key where the data link is a GRE tunnel. If the anchor node fails and data addressed to the mobile station comes to the PDSN, it may initiate a page for the mobile using the UATI. The anchor node may additionally send the PDSN the session seed and optionally the mobile station's network location. A registration zone may be defined to include access nodes within a predetermined distance of the anchor node, and the mobile station forced to re-register when moving outside of the registration zone. In this case, the PDSN may initiate a page for the mobile station only within the registration zone.

PDSN-based session recovery from RBS/AN failure in a distributed architecture network

A mobile station serves as an aggregation point for connecting one or more peripheral devices to a Public Data Network through the mobile station's wireless link to a supporting wireless communication network. In an exemplary embodiment, the mobile station establishes a single PPP session with the network that includes a primary service instance for itself and an auxiliary service instance for each locally attached peripheral device. As such, the mobile station and the one or more locally attached peripheral devices share a single PPP session, permitting each device to have its own IP address and allowing the mobile station to provide Mobile IP messaging relay between Mobile IP clients in the attached devices and the supporting network. With this arrangement, the mobile station avoids IP packet routing overhead by directing traffic to the appropriate peripheral device using the service instance identifiers marking the packet data traffic received from the network.

System and method for connecting peripheral devices to a supporting network through a mobile station

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San Diego, CA, United States of America

Sven Anders Borje Svensson