WO1999034635A2 - Method for improving the handing over a connection from one sgsn to another sgsn - Google Patents
Method for improving the handing over a connection from one sgsn to another sgsn Download PDFInfo
- Publication number
- WO1999034635A2 WO1999034635A2 PCT/SE1998/002396 SE9802396W WO9934635A2 WO 1999034635 A2 WO1999034635 A2 WO 1999034635A2 SE 9802396 W SE9802396 W SE 9802396W WO 9934635 A2 WO9934635 A2 WO 9934635A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sgsn
- connection
- new
- anchor
- temporary
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/12—Reselecting a serving backbone network switching or routing node
Definitions
- the present invention relates to a method for improving the handing over of a connection from one SGSN to another, i.e. when an MS (Mobile Station) moves from one SGSN service area to another.
- the present invention relates to GPRS service on GSM.
- GSM voice service uses an anchor concept to solve the problem. That means that in the network node (MSC/VLR) a connection is primarily established and is kept throughout the whole call This node is entitled 'anchor MSC/VLR If the subscriber moves into another MSC/VLR' s coverage area, the new MSC/VLR acts only as a transit node This node is entitled 'serving MSC/VLR' whereas the connection control still resides in the anchor MSC/VLR throughout the call.
- MSC/VLR network node
- An object of the present invention is to provide a method for improving the handing over of a connection from one
- Another object of the present invention is to provide such a method by which the layer 3 procedures do not have to be designed for supporting inter SGSN routing update.
- Still another object of the present invention is to provide a method by which the risk of losing payload packets is minimized.
- Yet another object of the present invention is to provide a method by which the tunnelling of payload packets from one SGSN to another is not required, thereby simplifying the design necessary therefor.
- Still another object of the present invention is to provide a method which optimizes the network utilization without adding complexity to SGSN.
- Another object of the present invention is to provide a method by which the service degration when handing over a connection from one SGSN to another is minimized as experienced from the MS point of view.
- the present method suggests that at inter SGSN routing update, the old SGSN gets the role as a temporary anchor whereas the new SGSN works temporarily as a serving SGSN.
- This leg is kept as long connection control procedure are processing including data packet transmission.
- the connection control is moved from anchor to serving SGSN.
- the leg between anchor and serving SGSN is a Gb interface with minor modifications. Some control signalling is required to handle radio resources.
- Fig. 1 and Fig. 2 are signalling sequence layouts, illustrating the principle of how inter SGSN routing update is carried out in two steps. Description of embodiments
- the present invention re- lates to a method method to "hand over" a connection from one SGSN to another without interrupting packet transmission and control signalling.
- the method allows the network to create a temporary leg between the old and the new SGSN.
- the temporary leg prevails until the state of the connection in the anchor SGSN can be securely transferred to the new SGSN while at the same time redirecting packet transfer to go directly from/to SGSN to/from the new SGSN.
- This construction has the advantage of not impacting on- going layer 3 procedures and any payload transmission.
- the layer 3 procedures do not have to be designed to support inter SGSN routing update since the temporary Gb channel is not visible for layer 3.
- Today's solution in GPRS require that all layer 3 procedures must be designed to cater for an inter SGSN routing update.
- the temp, anchor principle also simplifies signalling to between SGSN and external nodes. Since the solution allows the connection to finish up ongoing transactions before moving the context to new SGSN, services such as charging may be completed towards billing gateway in the normally manner before the context is moved to the new SGSN and charging is resumed.
- the solution optimises the network utilisation without adding complexity to SGSN.
- the subscriber will not experience any loss of service i.e., no retransmission peer to peer and no interrupted layer 3 procedures.
- GPRS General Packet Radio Service
- SGSN Serving GPRS support node
- GGSN Gateway GPRS support node
- MSC/VLR Mobile Switching Centre/Visitor Location Register
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU21936/99A AU2193699A (en) | 1997-12-30 | 1998-12-18 | Method for improving the handing over a connection from one sgsn to another sgsn |
KR1020007007302A KR100540353B1 (en) | 1997-12-30 | 1998-12-18 | Method for improving the handing over a connection from one sgsn to another sgsn |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO19976150 | 1997-12-30 | ||
NO19976150A NO324782B1 (en) | 1997-12-30 | 1997-12-30 | Method for improving the transmission of a connection from one SGSN to another SGSN |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1999034635A2 true WO1999034635A2 (en) | 1999-07-08 |
WO1999034635A3 WO1999034635A3 (en) | 1999-08-19 |
Family
ID=19901491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1998/002396 WO1999034635A2 (en) | 1997-12-30 | 1998-12-18 | Method for improving the handing over a connection from one sgsn to another sgsn |
Country Status (5)
Country | Link |
---|---|
KR (1) | KR100540353B1 (en) |
AU (1) | AU2193699A (en) |
NO (1) | NO324782B1 (en) |
TW (1) | TW437242B (en) |
WO (1) | WO1999034635A2 (en) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000054523A1 (en) * | 1999-03-09 | 2000-09-14 | Nokia Networks Oy | Ip routing optimization in an access network |
WO2000067499A1 (en) * | 1999-04-30 | 2000-11-09 | Nokia Networks Oy | Sgsn semi anchoring during the inter sgsn srnc relocation procedure |
WO2000079808A2 (en) * | 1999-06-21 | 2000-12-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Method of handing over mobile stations in a general packet radio service (gprs) radio telecommunications network |
WO2001005121A1 (en) * | 1999-07-08 | 2001-01-18 | Telefonaktiebolaget L M Ericsson (Publ) | Technique for providing a secure link in a mobile communication system |
EP1128685A1 (en) * | 2000-02-22 | 2001-08-29 | Lucent Technologies Inc. | Inhibit handover for real-time calls in GPRS systems |
WO2002035878A1 (en) * | 2000-10-24 | 2002-05-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and means for providing enhanced subscriber identity confidentiality during roming in a cellular radio communication system |
GB2374494A (en) * | 2001-04-12 | 2002-10-16 | Ericsson Telefon Ab L M | SGSN handover in a GPRS Network |
KR20020083942A (en) * | 2001-04-26 | 2002-11-04 | 가부시키가이샤 엔티티 도코모 | Data link transmission control method, mobile communication system, data link transmission control apparatus, base station, mobile station, mobile station control program and computer readable rocording medium |
WO2003032672A1 (en) * | 2001-10-05 | 2003-04-17 | Telefonaktiebolaget Lm Ericsson | Optimization of handover procedures in gprs |
KR100399056B1 (en) * | 2001-11-21 | 2003-09-26 | 한국전자통신연구원 | Method of Wireless Communication Resource Allocation by Variable QoS Parameter Negotiation in Wireless Network |
WO2003085902A1 (en) * | 2002-04-10 | 2003-10-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Data preservation |
KR100403731B1 (en) * | 2000-08-23 | 2003-10-30 | 삼성전자주식회사 | Core network separation structure an signal processing method thereof in mobile communication system |
KR100423148B1 (en) * | 2001-11-16 | 2004-03-16 | 삼성전자주식회사 | A srns relocation method of a packet network one of the asynchronous imt-2000 telecommunication network and the srsn relocation system |
WO2005027561A1 (en) * | 2003-09-15 | 2005-03-24 | Nokia Corporation | Packet-switched handover |
US6879820B2 (en) | 2000-07-12 | 2005-04-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Charging in communication networks having split control planes and user planes |
US6973054B2 (en) | 2001-01-05 | 2005-12-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Communication management in mobile networks having split control planes and user planes |
US7103002B2 (en) | 2000-07-12 | 2006-09-05 | Telefonktiebolaget Lm Ericsson (Publ) | Communication management in networks having split control planes and user planes |
CN100420311C (en) * | 2002-11-04 | 2008-09-17 | 广达电脑股份有限公司 | Method for resetting controller of serving wireless network in wireless telecommunication system |
CN100444678C (en) * | 2002-12-27 | 2008-12-17 | 诺基亚西门子网络有限公司 | Reallocation of mobile communication network unit |
USRE42586E1 (en) | 2001-01-09 | 2011-08-02 | Qualcomm Incorporated | Method and apparatus for improving radio spectrum usage and decreasing user data delay when providing packet PSI status |
US8380211B2 (en) | 2005-08-31 | 2013-02-19 | Huawei Technologies Co., Ltd. | CS domain call terminating system, method and network device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100798534B1 (en) * | 2001-09-11 | 2008-01-28 | 에스케이 텔레콤주식회사 | Method for providing a pre-paid service in a mobile telecommunication network |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998059468A2 (en) * | 1997-06-24 | 1998-12-30 | Nokia Telecommunications Oy | Method and device for re-routing a connection in a connection in a telecommunications network comprising a plurality of network elements |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI103083B (en) * | 1997-01-20 | 1999-04-15 | Nokia Telecommunications Oy | Packet radio networks and the procedure for updating the routing area |
-
1997
- 1997-12-30 NO NO19976150A patent/NO324782B1/en not_active IP Right Cessation
-
1998
- 1998-12-15 TW TW087120823A patent/TW437242B/en not_active IP Right Cessation
- 1998-12-18 WO PCT/SE1998/002396 patent/WO1999034635A2/en active IP Right Grant
- 1998-12-18 AU AU21936/99A patent/AU2193699A/en not_active Abandoned
- 1998-12-18 KR KR1020007007302A patent/KR100540353B1/en not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998059468A2 (en) * | 1997-06-24 | 1998-12-30 | Nokia Telecommunications Oy | Method and device for re-routing a connection in a connection in a telecommunications network comprising a plurality of network elements |
Non-Patent Citations (1)
Title |
---|
THE GSM SYSTEM FOR MOBILE COMMUNICATION, M. MOULY et al., 1992, pages 399-412 and 363. * |
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000054523A1 (en) * | 1999-03-09 | 2000-09-14 | Nokia Networks Oy | Ip routing optimization in an access network |
US7356595B2 (en) | 1999-03-09 | 2008-04-08 | Nokia Corporation | IP routing optimization in an access network |
US8255540B2 (en) | 1999-03-09 | 2012-08-28 | Nokia Corporation | IP routing optimization in an access network |
WO2000067499A1 (en) * | 1999-04-30 | 2000-11-09 | Nokia Networks Oy | Sgsn semi anchoring during the inter sgsn srnc relocation procedure |
US6909895B2 (en) | 1999-04-30 | 2005-06-21 | Nokia Corporation | SGSN semi anchoring during the inter SGSN SRNC relocation procedure |
WO2000079808A2 (en) * | 1999-06-21 | 2000-12-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Method of handing over mobile stations in a general packet radio service (gprs) radio telecommunications network |
WO2000079808A3 (en) * | 1999-06-21 | 2001-02-15 | Ericsson Telefon Ab L M | Method of handing over mobile stations in a general packet radio service (gprs) radio telecommunications network |
WO2001005121A1 (en) * | 1999-07-08 | 2001-01-18 | Telefonaktiebolaget L M Ericsson (Publ) | Technique for providing a secure link in a mobile communication system |
US6301479B1 (en) | 1999-07-08 | 2001-10-09 | Telefonaktiebolaget Lm Ericsson | Technique for providing a secure link in a mobile communication system |
EP1128685A1 (en) * | 2000-02-22 | 2001-08-29 | Lucent Technologies Inc. | Inhibit handover for real-time calls in GPRS systems |
US6928284B2 (en) | 2000-02-22 | 2005-08-09 | Lucent Technologies Inc. | Inhibiting handover to a new serving GPRS support node during a real-time call in a telecommunication system |
US7103002B2 (en) | 2000-07-12 | 2006-09-05 | Telefonktiebolaget Lm Ericsson (Publ) | Communication management in networks having split control planes and user planes |
US6879820B2 (en) | 2000-07-12 | 2005-04-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Charging in communication networks having split control planes and user planes |
KR100403731B1 (en) * | 2000-08-23 | 2003-10-30 | 삼성전자주식회사 | Core network separation structure an signal processing method thereof in mobile communication system |
WO2002035878A1 (en) * | 2000-10-24 | 2002-05-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and means for providing enhanced subscriber identity confidentiality during roming in a cellular radio communication system |
US6973054B2 (en) | 2001-01-05 | 2005-12-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Communication management in mobile networks having split control planes and user planes |
USRE42586E1 (en) | 2001-01-09 | 2011-08-02 | Qualcomm Incorporated | Method and apparatus for improving radio spectrum usage and decreasing user data delay when providing packet PSI status |
US8189515B2 (en) | 2001-01-09 | 2012-05-29 | Qualcomm Incorporated | Method and apparatus for improving radio spectrum usage and decreasing user data delay when providing packet PSI status |
GB2374494A (en) * | 2001-04-12 | 2002-10-16 | Ericsson Telefon Ab L M | SGSN handover in a GPRS Network |
KR20020083942A (en) * | 2001-04-26 | 2002-11-04 | 가부시키가이샤 엔티티 도코모 | Data link transmission control method, mobile communication system, data link transmission control apparatus, base station, mobile station, mobile station control program and computer readable rocording medium |
WO2003032672A1 (en) * | 2001-10-05 | 2003-04-17 | Telefonaktiebolaget Lm Ericsson | Optimization of handover procedures in gprs |
KR100423148B1 (en) * | 2001-11-16 | 2004-03-16 | 삼성전자주식회사 | A srns relocation method of a packet network one of the asynchronous imt-2000 telecommunication network and the srsn relocation system |
KR100399056B1 (en) * | 2001-11-21 | 2003-09-26 | 한국전자통신연구원 | Method of Wireless Communication Resource Allocation by Variable QoS Parameter Negotiation in Wireless Network |
US7616607B2 (en) | 2002-04-10 | 2009-11-10 | Telefonaktiebolaget L M Ericsson (Publ) | Data preservation |
WO2003085902A1 (en) * | 2002-04-10 | 2003-10-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Data preservation |
CN100420311C (en) * | 2002-11-04 | 2008-09-17 | 广达电脑股份有限公司 | Method for resetting controller of serving wireless network in wireless telecommunication system |
CN100444678C (en) * | 2002-12-27 | 2008-12-17 | 诺基亚西门子网络有限公司 | Reallocation of mobile communication network unit |
US8077680B2 (en) | 2003-09-15 | 2011-12-13 | Nokia Siemens Networks Oy | Packet-switched handover |
WO2005027561A1 (en) * | 2003-09-15 | 2005-03-24 | Nokia Corporation | Packet-switched handover |
US8380211B2 (en) | 2005-08-31 | 2013-02-19 | Huawei Technologies Co., Ltd. | CS domain call terminating system, method and network device |
Also Published As
Publication number | Publication date |
---|---|
TW437242B (en) | 2001-05-28 |
NO976150D0 (en) | 1997-12-30 |
AU2193699A (en) | 1999-07-19 |
NO324782B1 (en) | 2007-12-10 |
KR20010033775A (en) | 2001-04-25 |
NO976150L (en) | 1999-07-01 |
KR100540353B1 (en) | 2006-01-10 |
WO1999034635A3 (en) | 1999-08-19 |
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