Telefonaktiebolaget Lm Ericsson (publ)

Josephus Kuster

Klaus Turina

Dimitris Papadimitriou

Eric Lee Valentine

Dimitrios Papadimitriou

Hans-Peter Lippelt

To achieve an efficient and flexible routing of signaling messages between a core network and an access network in a mobile communication cellular network, it is proposed to provide a pool of mobile switching apparatuses between the core network and the access network. Each mobile switching apparatus in the pool () comprises a signaling unit () adapted to issue a paging message to the access network for connection establishment to a mobile terminal. Further, according to the present invention it is proposed to provide each mobile switching apparatus in the pool () with a relay unit () adapted to receive a paging response from the access network. Further, the relay unit () is adapted to determine a mobile switching apparatus in the pool () of mobile switching apparatuses handling the paging response.

Signaling in a mobile cellular communication network with pooled MSCs

A communication apparatus running a protocol stack implementation for interworking between a signaling source node and a signaling target node provides improved support for introducing server pools in packet networks and for achieving transparency for applications. A first protocol implementation unit (SCTP) runs a signaling control layer on top of a packet transfer network (IP) for exchanging signaling messages via one or more signaling associations. A second protocol implementation unit (SUA, M3UA) runs a user adaptation layer on top of the signaling control layer SCTP for supporting signaling connection control services (RANAP) used by the signaling source node. A name mapping unit receives a signaling target node name from the signaling source node and maps the name into a peer signaling association.

Signaling transport protocol extensions for load balancing and server pool support

A method and protocol for providing direct, per-call address information exchange () between two distinct IP media gateways, including establishment of a first termination point () in an originating media gateway (), transferring address information for the first termination point () to a receiving media gateway (), establishing () of a second termination point () in the receiving media gateway, and using the address information to establish direct communication between the first and second termination points.

System for media gateway to media gateway address information exchange

To achieve an improved support for introduction of server pools in packet networks and further to achieve transparency for applications the present invention provides a communication apparatus running a protocol stack implementation for interworking between a signaling source node and a signaling target node. The communication apparatus comprises a first protocol implementation unit (SCTP) adapted to run a signaling control layer on top of a packet transfer network (IP) for exchange of signaling messages via at least one signaling association. Further, the communication apparatus comprises a second protocol implementation unit (SUP, M UA) adapted to run a user adaptation layer on top of the signaling control layer (SCTP) for support of signaling connection control services (RANAP) used by the signaling source node. A name mapping unit is adapted to receive a signaling target node name from the signaling source node and to map the signaling target node name into a peer signaling association.

A packet-based telecommunication system ( ) is disclosed, comprising a first media gateway ( ) having a first CODEC structure ( ), a second media gateway ( ) having a dual function CODEC structure ( ), wherein the dual function CODEC structure is adapted to provide tandem free operation between itself and the first CODEC structure, and wherein the dual function CODEC comprises a first element ( ) adapted to negotiate tandem free operation, and a second element ( ) communicatively coupled to the first element and adapted to selectively convert data coding responsive to the first element.

System for tandem free operation in packet based communication

To achieve an efficient and flexible routing of signaling messages between a core network and an access network in a mobile communication cellular network, it is proposed to provide a pool of mobile switching apparatuses between the core network and the access network. Each mobile switching apparatus in the pool ( ) comprises a signaling unit ( ) adapted to issue a paging message to the access network for connection establishment to a mobile terminal. Further, according to the present invention it is proposed to provide each mobile switching apparatus in the pool ( ) with a relay unit ( ) adapted to receive a paging response from the access network. Further, the relay unit ( ) is adapted to determine a mobile switching apparatus in the pool ( ) of mobile switching apparatuses handling the paging response.

Growing community of inventors

Prosper, TX, United States of America

Josephus Kuster