WO1998011743A2 - Transfert d'appel entre un sous-systeme dect et un systeme radiotelephonique mobile - Google Patents
Transfert d'appel entre un sous-systeme dect et un systeme radiotelephonique mobile Download PDFInfo
- Publication number
- WO1998011743A2 WO1998011743A2 PCT/DE1997/002037 DE9702037W WO9811743A2 WO 1998011743 A2 WO1998011743 A2 WO 1998011743A2 DE 9702037 W DE9702037 W DE 9702037W WO 9811743 A2 WO9811743 A2 WO 9811743A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mobile radio
- radio system
- dect
- gsm
- subsystem
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
- H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
Definitions
- the invention relates to a method for handover of a dual-mode mobile radio device, which has left the coverage area of a DECT subsystem connected to a cellular mobile radio system according to the GSM standard, to the mobile radio system.
- the mobile radio system can be designed according to the GSM standard (radio transmission system according to the recommendations of the CEPT subcommittee Group Special Mobile or Global .System for Mobile Communication, GSM) or according to the DECT standard (Digital European Cordless Telecommunication, DECT).
- GSM radio transmission system according to the recommendations of the CEPT subcommittee Group Special Mobile or Global .System for Mobile Communication, GSM
- DECT Digital European Cordless Telecommunication, DECT
- the exchanged digital data can be digitized voice signals, data for fax communication or more generally data for stationary or mobile data processing systems, such as personal computers or notebooks.
- a so-called dual-mode mobile radio device can have a GSM and a DECT system.
- the radio traffic is currently carried out with a GSM mobile radio system in the frequency band from 890 to 960 MHz with a cell size with a radius of up to 35 km and with a DECT mobile radio system in the frequency band from 1880 to 1900 MHz with a cell size of up to 300 meters.
- a mobile radio system according to the GSM standard can be provided, in whose cellular network DECT subsystems are integrated.
- the switching center (MSC, Mobile switching center) of the Mo- bilfunksySterns in addition to the base stations (BSS, Base Station System) of the individual GSM cells, the base stations of the DECT subsystems are connected.
- MSC Mobile switching center
- BSS Base Station System
- a handset registered in a DECT mobile radio system covers the coverage area of a DECT base station, i.e. leaves the associated small cell, the handover is triggered by the handset itself to another DECT base station.
- a cellular device logged into a cellular mobile radio system according to the GSM standard extends the coverage area of a base station, i.e. leaves the associated mobile radio system cell, the handover to another base station is triggered by the mobile radio system. Therefore, in the case of combinations of the mobile radio system and DECT subsystems, the handover procedures for the dual-mode mobile radio device can only be combined with great difficulty and with great effort.
- the invention is based on the object of specifying an easy-to-implement handover method for a dual-mode mobile radio device from a DECT subsystem to a cellular mobile radio system.
- a GSM mobile radio system cell GZ has a GSM to supply a mobile radio device MF located in its area.
- Base station BSS Base Station system
- This base station BSS is connected to a switching center MSC (Mobile switching center).
- MSC Mobile switching center
- a DECT subsystem DUS is connected to the switching center MSC.
- the DECT subsystem DUS has a DECT base station DBS to supply a mobile radio MF located in its area.
- the GSM base station BSS and the DECT base station DBS are, for example, wired to the so-called A interface of the switching center MSC.
- next base station is a base station BSS of a mobile radio system
- the connection to this base station BSS is established according to the invention by a method for re-booking (call re-establishment) which is known per se in the mobile radio system.
- the prerequisite for this is that the base station BSS supports the call for re-booking from the system side.
- This handover procedure can, for example, during a
- the connection to the GSM mobile radio system is initiated by the mobile radio MF itself.
- Waiting for the connection to be reestablished can be signaled to the user of the mobile radio device MF, for example by an acoustic signal.
- the time span can also be bridged by muting the acoustic components of the mobile radio MF.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
L'invention concerne un procédé permettant des transferts d'appel (handover) d'un appareil radiotéléphonique mobile bimodal (MF) qui est à l'origine de la zone couverte par un sous-système DECT (DUS) relié à un système radiotéléphonique mobile (GSM) cellulaire suivant la norme GSM, au système radiotéléphonique mobile (GSM). Selon ce procédé, l'appareil radiotéléphonique mobile (MF) délivre un appel en vue d'un rétablissement d'appel (call re-establishment) et est ensuite pris en charge par une station de base (BSS) du système radiotéléphonique mobile (GSM).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19637437.5 | 1996-09-13 | ||
DE19637437A DE19637437C1 (de) | 1996-09-13 | 1996-09-13 | Verbindungsübergabe zwischen einem DECT-Untersystem und einem Mobilfunksystem |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998011743A2 true WO1998011743A2 (fr) | 1998-03-19 |
WO1998011743A3 WO1998011743A3 (fr) | 1998-06-18 |
Family
ID=7805605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1997/002037 WO1998011743A2 (fr) | 1996-09-13 | 1997-09-11 | Transfert d'appel entre un sous-systeme dect et un systeme radiotelephonique mobile |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE19637437C1 (fr) |
TW (1) | TW350192B (fr) |
WO (1) | WO1998011743A2 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998031165A3 (fr) * | 1997-01-07 | 1998-09-17 | Nokia Telecommunications Oy | Annonce d'appel de penetration moyenne dans un systeme de telecommunications |
US6445921B1 (en) | 1999-12-20 | 2002-09-03 | Koninklijke Philips Electronics N.V. | Call re-establishment for a dual mode telephone |
JP2008533894A (ja) * | 2005-03-15 | 2008-08-21 | ノキア コーポレイション | 代替のアクセスネットワークを介するコール再確立 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI112841B (fi) * | 1999-06-01 | 2004-01-15 | Nokia Corp | Menetelmä ja järjestely yhteyden muodostamiseksi tukiaseman ja matkaviestimen välille sekä matkaviestin |
US6768908B1 (en) * | 2000-04-07 | 2004-07-27 | Motorola, Inc. | Method and apparatus for soft handoff communications in a communication system operating according to IS-95B and IS-95C standards |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2282731C (en) * | 1993-10-08 | 2006-09-06 | Nokia Telecommunications Oy | Dual mode subscriber terminal and a handover procedure of the dual mode subscriber terminal in a mobile telecommunications network |
GB2282730B (en) * | 1993-10-08 | 1998-01-28 | Nokia Telecommunications Oy | Dual mode subscriber terminal and a handover procedure of the dual mode subscriber terminal in a mobile telecommunication network |
DE4344702A1 (de) * | 1993-12-27 | 1995-07-06 | Deutsche Bundespost Telekom | Verfahren und Anordnung zum wechselweisen Betreiben eines mobilen Endgerätes über ein zellulares Mobilfunksystem und ein Schnurlossystem in einem Festnetz |
SE508940C2 (sv) * | 1995-02-06 | 1998-11-16 | Telia Ab | Metod och anording för handover vid mobilt telekommunikationsnät |
SE503848C2 (sv) * | 1995-02-06 | 1996-09-16 | Telia Ab | Förfarande och arrangemang för överkoppling mellan trådlöst telekommunikationssystem och cellulärt mobilt telekommunikationssystem |
-
1996
- 1996-09-13 DE DE19637437A patent/DE19637437C1/de not_active Expired - Fee Related
-
1997
- 1997-09-03 TW TW086112672A patent/TW350192B/zh active
- 1997-09-11 WO PCT/DE1997/002037 patent/WO1998011743A2/fr active Application Filing
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998031165A3 (fr) * | 1997-01-07 | 1998-09-17 | Nokia Telecommunications Oy | Annonce d'appel de penetration moyenne dans un systeme de telecommunications |
US6434393B1 (en) | 1997-01-07 | 2002-08-13 | Nokia Telecommunications Oy | Medium penetration call announcement in telecommunications system |
US6445921B1 (en) | 1999-12-20 | 2002-09-03 | Koninklijke Philips Electronics N.V. | Call re-establishment for a dual mode telephone |
JP2008533894A (ja) * | 2005-03-15 | 2008-08-21 | ノキア コーポレイション | 代替のアクセスネットワークを介するコール再確立 |
Also Published As
Publication number | Publication date |
---|---|
TW350192B (en) | 1999-01-11 |
WO1998011743A3 (fr) | 1998-06-18 |
DE19637437C1 (de) | 1998-04-23 |
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