Nokia Corporation

Pekka Korja

Seppo Ilmari Vesterinen

Shavantha Kularatna

Tomi Tarvainen

Jussi Sipola

Atte Länsisalmi

Gabriel Ramos

Sanna Mäenpää

Raquel Sanchez

Syed Hossain

The present invention is a method for performing a mobile user terminal route update in a telecommunication network operated based on the Internet Protocol, the network comprising at least two network transceiver device gateways each communicating with at least one mobile user terminal, at least one routing element providing a route for a communication connection between a mobile first user terminal and a second user terminal, the second user terminal communicating via a border gateway and the at least one routing element with mobile first user terminal, and wherein each user terminal is identified by an Internet Protocol address, the method comprising the steps of detecting an occurrence of a handoff condition for the mobile first user terminal for a handoff from a first one to a second one of the at least two network transceiver device gateways, initiating a handoff procedure at the mobile first user terminal, the first and the second network transceiver device gateways and the border gateway, and the transmitting the respective Internet Protocol addresses that identify those terminals which are communicating with each other by the corresponding gateway to be associated to the respective terminal after handoff, before completion of the handoff procedure.

Method for performing a mobile user terminal route update in a telecommunication network operated based on the internet protocol

The present invention relates to a relocation method, system and network element for changing a serving radio resource control entity After an initial operating state in which a user equipment () has radio links with a serving network element () and a drift network element () supporting said serving network element () with a wireless connection, the serving network element () transmits a relocation-specific information to a target network element (). Based on the relocation-specific information, the target network element () establishes a link to the drift network element (), such that the drift network element () can receive user traffic from both the serving network element () and the target network element (). Then, the radio resource control is relocated to the target network element (). The relocation-specific information may comprise an identifier or a list of identifiers of drift network elements. Thus, existing soft handover techniques can be enhanced by allowing a user plane connection to be maintained with drift network elements. Thereby, any amount of drift network elements can be kept, with improved radio performance as a consequence.

Relocation method, system and network element

Growing community of inventors

Helsinki, Finland

Pekka Korja