Data transmission method and network elements

Details Data transmission method and network elements Data transmission method and network elements

2004-12-01

2009-02-17

Duong, Frank (Department: 2416)

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

C370S331000

Reexamination Certificate

active

07492709

ABSTRACT:
A method in which user terminal connections are relocated without interruption in the user data flow. The method includes receiving a first message from a core network element at a target network element that indicates a request to transfer a network control from a source network element to the target network element, sending a second message to the core network element from the target network element that acknowledges receipt of the first message, sending user-related data to the source network element and to the core network element using an uplink bi-cast at the target network element, and terminating the sending of the user related data to the source network element from the target network element after the transfer of the network control to the target network element.

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Ai-Chun Pang, et al., “A new Approach for Serving Radio Network Controller Relocation in UMTS All-IP Network”, 2004 IEEE, pp. 277-285.
3GPP-ETSI TR 125 936 V4.0.1, “Universal Mobile Telecommunications System (UMTS); Handovers for real-time services from PS domain”, Dec. 2001, pp. 1-35.

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