TW200711505A - Inter-system handover using legacy interface - Google Patents

Inter-system handover using legacy interface

Info

Publication number
TW200711505A
TW200711505A TW095126423A TW95126423A TW200711505A TW 200711505 A TW200711505 A TW 200711505A TW 095126423 A TW095126423 A TW 095126423A TW 95126423 A TW95126423 A TW 95126423A TW 200711505 A TW200711505 A TW 200711505A
Authority
TW
Taiwan
Prior art keywords
inter
handover
ran
sgsn
anchor
Prior art date
Application number
TW095126423A
Other languages
Chinese (zh)
Other versions
TWI367044B (en
Inventor
Oronzo Flore
Francesco Grilli
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of TW200711505A publication Critical patent/TW200711505A/en
Application granted granted Critical
Publication of TWI367044B publication Critical patent/TWI367044B/en

Links

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

Techniques for performing inter-system handover are described. An Access Gateway (AGW) sends a message requesting handover of a user equipment (UE) from a first radio access network (RAN) to a second RAN. The message is sent to an Inter Access System (inter-AS) Anchor for the first RAN communicating with an SGSN for the second RAN via a Gn interface. The Inter-AS Anchor and SGSN exchange messages via the Gn interface, and the Inter-AS Anchor forwards the messages to the AGW to handover the UE from the first RAN to the second RAN. The SGSN sees the Inter-AS Anchor as another SGSN for the handover and as a GGSN after the handover. This allows the inter-system handover to be achieved with an inter-SGSN SRNS relocation procedure used for handover between two SGSNs, which reduces impact on the SGSN to support the inter-system handover.
TW095126423A 2005-07-19 2006-07-19 Inter-system handover using legacy interface TWI367044B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70124005P 2005-07-19 2005-07-19

Publications (2)

Publication Number Publication Date
TW200711505A true TW200711505A (en) 2007-03-16
TWI367044B TWI367044B (en) 2012-06-21

Family

ID=55856027

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095126423A TWI367044B (en) 2005-07-19 2006-07-19 Inter-system handover using legacy interface

Country Status (1)

Country Link
TW (1) TWI367044B (en)

Also Published As

Publication number Publication date
TWI367044B (en) 2012-06-21

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