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Methods and apparatus for relocating and restoring connections through a failed serving gateway and traffic offloading

A service gateway and relocation technology, applied in the field of mobile management entities, can solve problems such as overload, instability, and congestion

Inactive Publication Date: 2013-07-10
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] If the PGW, MME and S4-SGSN do not properly manage the signaling load upon detection of a SGW restart, it may cause congestion, overload and / or failure in the Public Land Mobile Network (PLMN) where the SGW has an active PDN connection. Stablize

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  • Methods and apparatus for relocating and restoring connections through a failed serving gateway and traffic offloading
  • Methods and apparatus for relocating and restoring connections through a failed serving gateway and traffic offloading
  • Methods and apparatus for relocating and restoring connections through a failed serving gateway and traffic offloading

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Embodiment Construction

[0039] Now, the present invention will be described more fully hereinafter with reference to the accompanying drawings showing embodiments of the invention. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

[0040] Some embodiments relate to a radio telecommunications network in which a serving gateway support node controls connections between a UE and a packet based network via at least one SGW and at least one PGW. The Serving Gateway Support Node responds to an indication of a failure of communication to the first SGW, or to an operator initiated offload of a connection from the SGW, by initiating relocation of an existing connection via the first SGW to instead via the second SGW. The Serving Gateway Support Node also responds to the indication of resumption of communication to the first SGW by ceasing the relocation of at least some existing connections that have not yet been reloca...

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Abstract

in a radio telecommunications network, a serving gateway support node controls connections between user equipment nodes and a packet-based network that pass through at least one serving gateway and at least one packet gateway. The serving gateway support node detects failure of communications to a first serving gateway. The serving gateway support node responds to the detected failure by initiating relocation of existing connections through the first serving gateway to instead pass through a second serving gateway. The serving gateway support node detects recovery of communications to the first serving gateway, and responds by ceasing relocation of at least some of the existing connections that have not yet been relocated to the second serving gateway. Related methods, serving gateways, and packet gateways are also disclosed.

Description

[0001] related application [0002] The present invention requires a proposal on September 15, 2010, titled "Processes related to SGW restart and SGW service offloading" ( A Process on Handling of SGW Restart and SGW Traffic Offload ), the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] The present disclosure relates to Serving Gateway Support Nodes in radio telecommunications networks, such as but not exclusively Serving GRPS Support Nodes (SGSN) of General Packet Radio Service (GPRS) networks and 3GPP (Third Generation Partnership Project) LTE (Long Term Evolved) Network Mobility Management Entity (MME). It also relates to serving gateways, packet gateways and networks in general, and to related methods. Background technique [0004] Access of mobile devices to packet-based networks such as the Internet via radio telecommunications networks is an important growth area for the telecommunications industry. For example, 3GP...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/12
CPCH04W36/12H04W76/25H04W24/04H04W36/305H04L41/0816H04L41/0668H04W76/18H04W88/16H04W88/18
Inventor Y.萨欣L.L.坎贝尔
Owner TELEFON AB LM ERICSSON (PUBL)