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Mme or sgsn selection at handover in a network sharing environment

A core network and target network technology, applied in network data management, connection management, electrical components, etc., can solve problems such as non-existence

Active Publication Date: 2017-02-15
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] However, when the source network will select the target core MME during handover and the target network is a heterogeneous network with different types of MMEs, there is no mechanism to support the source core node MME / SGSN to select a matching type of MME that will serve the wireless device

Method used

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  • Mme or sgsn selection at handover in a network sharing environment
  • Mme or sgsn selection at handover in a network sharing environment
  • Mme or sgsn selection at handover in a network sharing environment

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Experimental program
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Embodiment Construction

[0042] figure 2 A communication system 200 is depicted in which embodiments herein may be implemented. In some embodiments, the communication network 200 may be applied to one or more radio access technologies such as, for example, Long Term Evolution (LTE), LTE Advanced, Wideband Code Division Multiple Access (WCDMA), Global System for Mobile Communications (GSM), or any other 3GPP access technology or other access technology such as eg Wireless Local Area Network (WALN).

[0043] The communication system 200 includes a first target CN node 201 , at least one second target CN node 203 , a source CN node 205 and a DNS 210 . The first target CN node 201 , the second target CN node 203 , the source CN node 205 and the DNS 210 can be regarded as included in the core network of the communication system 200 . The first target CN node 201 may be an MME, an SGSN, or a combined MME and SGSN. The second target CN node 203 may be an MME, an SGSN or a combined MME and SGSN. The sour...

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Abstract

The embodiments herein relate to a method in a first target CN node (201) for handling handover of a wireless device from a source CN node (205) to another CN node. The first target CN node (201) receives, from the source CN node (205), a request message to hand over the wireless device. The first target CN node (201) determines that the first target CN node (201) is unsuitable for handover. The first target CN node (201) determines if there is at least one candidate second target CN node (203) suitable for handover. The first target CN node (201) determines whether the request message should be forwarded to the at least one candidate second target CN node (203) or whether the source CN node (205) should be informed regarding if there is at least one candidate second target CN node (203) that is suitable.

Description

technical field [0001] Embodiments herein generally relate to a first target core network (CN) node, a method in the first CN node, a source CN node, and a method in the source CN node. More particularly, embodiments herein relate to handling handover of a wireless device from a source CN node to another CN node. Background technique [0002] 3GPP network architecture [0003] figure 1 An embodiment of a non-roaming architecture for an Evolved Packet System (EPS) is illustrated. The wireless device 101 can interact with the EPS using Evolved Universal Terrestrial Radio Access (E-UTRAN) 105 radio access. Wireless device related control signaling is handled by Mobility Management Entity (MME) 108 with the support of subscription information provided by Home Subscriber Server (HSS) 110 . User payloads are handled by Serving Gateway (S-GW) 115 and PDN Gateway (P-GW) 118 . P-GW 118 may interact with Policy and Charging Rules Function (PCRF) 120 . Serving Universal Packet Ra...

Claims

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Application Information

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IPC IPC(8): H04W36/00H04W88/06
CPCH04W36/0061H04W88/06H04W76/18H04W36/08H04W36/00835H04L61/4511H04W8/18H04W36/385
Inventor L-B·奥尔森P·拉姆勒
Owner TELEFON AB LM ERICSSON (PUBL)