EP2095670A1 - Procédé, système et dispositif pour réaliser une procédure de connexion d'un terminal mobile dans un réseau de radiocommunication mobile - Google Patents

Procédé, système et dispositif pour réaliser une procédure de connexion d'un terminal mobile dans un réseau de radiocommunication mobile

Info

Publication number
EP2095670A1
EP2095670A1 EP07821938A EP07821938A EP2095670A1 EP 2095670 A1 EP2095670 A1 EP 2095670A1 EP 07821938 A EP07821938 A EP 07821938A EP 07821938 A EP07821938 A EP 07821938A EP 2095670 A1 EP2095670 A1 EP 2095670A1
Authority
EP
European Patent Office
Prior art keywords
mobile terminal
base station
mobile
message
request
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP07821938A
Other languages
German (de)
English (en)
Inventor
Jörg Brenner
Steffen Beckmann
Carl Mathias Cramer
Aleksej Dorn
Florian Wolff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atos Convergence Creators GmbH and Co KG
Original Assignee
Siemens Programm und Systementwicklung GmbH and Co KG
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 Siemens Programm und Systementwicklung GmbH and Co KG filed Critical Siemens Programm und Systementwicklung GmbH and Co KG
Priority to EP07821938A priority Critical patent/EP2095670A1/fr
Publication of EP2095670A1 publication Critical patent/EP2095670A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/12—Interfaces between hierarchically different network devices between access points and access point controllers

Definitions

  • the invention relates to a method for carrying out a registration procedure of a mobile terminal in a mobile radio network, as well as a system for carrying out the method and a device for use in this method.
  • Modern cellular digital mobile networks have revolutionized mobile communications since the early 1990s. They have almost completely replaced the existing analog mobile networks.
  • the modern standards (especially GSM, UMTS, CDMA) allowed for a decline in infrastructure and terminal prices, which has led to competition among telephone providers and low fees.
  • These login procedures are based on the mobile terminal sending messages containing a request reference to the mobile network.
  • the mobile network then sends corresponding response messages to the requesting mobile device.
  • These messages contain the request references sent by the mobile terminal in advance and thus enable the mobile terminal to uniquely assign the reply message.
  • the request responses sent by the mobile terminal remain valid only for a certain period of time, if a response message to the mobile terminal takes place (eg due to time delays within the mobile network) after expiry of this time, the response message is rejected as invalid and the mobile terminal starts again performing a login procedure. If the time delay continues to exist during this or further logon attempts, the mobile terminal can not log on to this mobile radio network.
  • the procedure of this log-in procedure is based on the repeated transmission of signaling requests CHAN RQD on the so-called Random Access Channel RACH in the direction of the logon procedure according to the standard "GSM TS 04.08 Chapter 3.3.1.1.2"
  • Each CHAN RQD message is provided by the mobile terminal (MS) with a "Request Reference (Ref.l)."
  • the mobile radio network or Base Station Controller BSC) responds to this message by sending CHAN ACT with the structure of the future signaling channel and then sends on the Access Grant Channel AGCH a so-called "Immediate Assignment Message" IMM ASSIGNMENT to the mobile device.
  • This IMM ASSIGNMENT message contains the Ref.l used by the mobile terminal and can therefore be assigned by the MS. Since the transmission of the CHAN RQD message is uncoordinated with others, also one
  • the mobile terminal repeats the transmission of the CHAN RQD message after a fixed time (which is a function of the cell configuration S and the value Tx-Integer radiated by the BTS). With each repeated transmission, the mobile terminal uses a new reference (ref n) - and remembers only the last three references (ref. N-2, Ref. N-1, ref. N).
  • the mobile terminal starts the timer T3126 and waits the arrival of an IMM ASSIGNMENT message matching the last three transmissions. If this timer expires, the mobile terminal terminates the assignment procedure with the network. The consequence is that a registration of the mobile, a call establishment or the sending of an SMS fails.
  • the invention is based on the object also in the case of high delay time on the interface between the
  • Base station and the control unit to perform a registration procedure of a mobile terminal.
  • the device located in the connection from the base station to the control unit fulfills the object in that it
  • the mobile terminal experiences the same response from the mobile network as in the case of a lack of time delay.
  • the advantage can be achieved that the mobile terminal can make the logon process even with time delays which otherwise make the logon process impossible.
  • An advantageous embodiment of the invention provides to implement the function in an inserted into the interface between the base station and control unit network element.
  • an existing mobile network can be improved without having to change existing network elements.
  • a network element can be changed so that it has the functionality of the invention.
  • the problem is solved as follows.
  • the CHAN RQD messages sent by the mobile terminal are from one between BTS and the long signal propagation link (e.g.
  • Fig.l shows the representation of the basic structure of a cellular mobile network. Shown are the essential, touched by this invention network device mobile terminal 1, base station B and control unit S and a switching unit V. Concrete, in use mobile networks have even more insignificant for this invention network elements and are connected to the public telephone network (PSTN).
  • PSTN public telephone network
  • FIG. 2 shows the representation of the basic structure of a cellular mobile radio network in the case of the particularly pronounced spatial separation of the network elements
  • Base station B and control unit S e.g. when used in an airplane.
  • the framed part represents the remote deployed network elements.
  • the interface between these two network elements in this case is transmitted over a high time delay channel 13, e.g. led over a satellite radio link.
  • Fig. 3 shows the representation of a conversion according to the invention according to claim 2.
  • the underlying function of the invention is implemented in a separate network element.
  • Fig. 4 shows the representation of a conversion according to the invention according to claim 3.
  • the underlying function of the invention is integrated into the base station.
  • Fig. 7 shows the example of the GSM standard defined
  • Fig.l shows the representation of the basic structure of a cellular mobile network. Shown is a mobile terminal 1 which with a base station B via a
  • a control unit S is connected in this illustration simultaneously with 3 base stations.
  • a switching unit V establishes the connection to the public telephone system (not shown here)
  • FIG. 2 shows the representation of the basic structure of a cellular mobile radio network in the case of the particularly pronounced spatial separation of the network elements base station B and control unit S, for example when used in an aircraft.
  • the framed part represents the remote network elements.
  • the interface between these two network elements is in this case over a channel with a high time delay 13, for example, led over a satellite radio link.
  • FIG. 3 the structure of a mobile network in the inventive arrangement of the underlying device of the invention is shown schematically.
  • the base station B (which in case the mobile radio network is called a GSM network base transceiver station BTS and is thus shown in the signaling flow in Fig. 7) is connected to the control unit S (which in case the mobile radio network is a GSM network base Station controller BSC is named and thus in the signaling sequence in Fig. 7 is shown) connected.
  • the device 4 according to the invention and the transmission channel with a high signal propagation time are 13. It is essential that the device 4 according to the invention is arranged between the base station B and the transmission channel with a high signal propagation time.
  • FIG. 5 shows the GSM signaling procedure for the execution of an "Immediate Assignment Procedure" in the event of a lacking or very low time delay in the connection between Base Transceiver Station 2 and Base Station Controller 3.
  • the mobile terminal 1 starts the "Immediate Assignment Procedure at any point in time TO sending a CHAN RQD (REFL) message 5.
  • This message contains the Request Reference Ref1.
  • the base station controller 3 then responds by sending a CHAN ACT message 6 to the base transceiver station which then responds with a CHAN ACT ACK message 7.
  • the Base Station Controller 3 responds to the CHAN ACT ACK message 7 with the sending of an IMM ASSIGNMENT (Ref1) message 8.
  • This message contains the CHAN_RQD (Ref1) message 5 originating from the logon process, Referencing Request Ref. Since the IMM ASSIGNMENT (Ref1) message 8 arrives at the mobile terminal 1 in this example at runtime of the timer 3126, it is recognized as valid by the mobile terminal 1 and the mobile terminal can then continue the signaling process.
  • a signaling sequence during the execution of an "Immediate Assignment Procedure", which fails due to a time delay, is illustrated using the example of GSM
  • the signaling sequences are identical to those shown in Fig. 5, but the IMM ASSIGNMENT (Ref1) message 8 applies in this example Termination of the validity phase at the mobile terminal 1.
  • the IMM ASSIGNMENT (Ref1) message 8 is therefore rejected by the mobile terminal 1 as invalid and the signaling process can not be continued.
  • FIG. 7 illustrates the signaling sequence during the execution of an "Immediate Assignment Procedure” using the example of GSM. It represents in the horizontal direction the network elements mobile terminal 1, base transceiver station 2, the device 4 according to the invention, and the base station controller 3 vertical direction represents the time axis.
  • the mobile terminal 1 starts the "Immediate Assignment Procedure” at any time TO with the Sending a CHAN_RQD (Ref1) message 5.
  • This message contains request ref1. Due to the time delay on the transmission system from the base transceiver station 2 to the base station controller 3, the message arrives at the time delay Ta at the base station controller 3.
  • the base station controller 3 then responds by sending out a CHAN ACT message 6, which arrives after a time delay determined by the time delay at the base transceiver station 2 at the time Tb and triggers there the transmission of a CHAN ACT ACK message 7, which for from the time delay Tc arrives at Base Station Controller 3.
  • the base station controller 3 responds to the CHAN ACT ACK message 7 by sending an IMM ASSIGNMENT (Ref1) message 8.
  • This message contains the request ref1 introduced by the original logon triggering CHAN RQD (Ref1) message 5.
  • the mobile terminal 1 transmits another CHAN_RQD (Ref2) message 10 at the time Tl after the lapse of the period S, as well as at the time T2 (message 11) and at the time T3, respectively, incrementing the request references included in the message.
  • the CHAN_RQD (Ref4) message 12 sent by the mobile terminal 1 at the time T3 contains the request reference Ref4.
  • the device 4 stores the request reference contained therein at any time when it is passed through by a CHAN RQD message. At the time Sl, the device 4 stores the information in the CHAN_RQD (Ref1)
  • the device 4 stores the request reference Ref2 included in the CHAN_RQD (Ref2) 10, etc.
  • the request reference Ref3 is stored in the device according to the invention.
  • the device 4 replaces the request reference Refl contained in the IMM ASSIGNMENT (Ref1) message 8 with the request reference Ref3 stored at that time and sends the IMM ASSIGNMENT (Ref3) message 9 to the mobile terminal 1.
  • the IMM ASSIGNMENT (Ref3) message 9 arrives at the mobile terminal 1 at the time T4.
  • the mobile terminal 1 would therefore not recognize a request Refl Ref valid.
  • the mobile terminal 1 experiences a response from the mobile network which is recognized as valid, since according to the GSM standard mobile terminals only recognize IMM ASSIGNMENT messages as valid which contain one of the last 3 request addresses sent by the mobile terminal 1. In the present case these are Ref2, Ref3 and Ref4. An IMM ASSIGNMENT which contains Refl would therefore be discarded by the mobile terminal 1.
  • V Switching unit 1 Mobile terminal (Mobile Station, MS)
  • GSM base station 2 base transceiver station (GSM base station)
  • GSM control unit base station controller

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un dispositif pour réaliser une procédure de connexion d'un terminal mobile (1) dans un réseau de radiocommunication mobile. Pour compenser un retard sur un canal de communication entre une station de base (B) et une unité de commande (S), un dispositif (4) est inséré dans la liaison entre la station de base (B) et l'unité de commande (S), lequel est disposé entre la station de base (B) et le tronçon subissant le retard (13) dans le canal de communication, et lequel enregistre la référence de demande émise par le terminal mobile (1) pendant chaque lancement d'une procédure de connexion, et insère cette référence de demande enregistrée dans un message de réponse envoyé par l'unité de commande (S) de manière à ce que la référence de demande qui s'y trouve soit remplacée par la référence de demande actuellement enregistrée dans ce dispositif. Ceci représente l'avantage que le terminal mobile (1) peut effectuer la procédure de connexion également en cas de retards sur la liaison entre la station de base (B) et l'unité de commande (S), lesquels retards rendent sinon impossible le processus de connexion.
EP07821938A 2006-11-14 2007-10-29 Procédé, système et dispositif pour réaliser une procédure de connexion d'un terminal mobile dans un réseau de radiocommunication mobile Withdrawn EP2095670A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07821938A EP2095670A1 (fr) 2006-11-14 2007-10-29 Procédé, système et dispositif pour réaliser une procédure de connexion d'un terminal mobile dans un réseau de radiocommunication mobile

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP06124044.6A EP1924112B1 (fr) 2006-11-14 2006-11-14 Méthode, système et dispositif pour effectuer une procédure d'enregistrement d'un terminal mobile dans un réseau de communications radio
EP07821938A EP2095670A1 (fr) 2006-11-14 2007-10-29 Procédé, système et dispositif pour réaliser une procédure de connexion d'un terminal mobile dans un réseau de radiocommunication mobile
PCT/EP2007/061578 WO2008058843A1 (fr) 2006-11-14 2007-10-29 Procédé, système et dispositif pour réaliser une procédure de connexion d'un terminal mobile dans un réseau de radiocommunication mobile

Publications (1)

Publication Number Publication Date
EP2095670A1 true EP2095670A1 (fr) 2009-09-02

Family

ID=37944698

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06124044.6A Active EP1924112B1 (fr) 2006-11-14 2006-11-14 Méthode, système et dispositif pour effectuer une procédure d'enregistrement d'un terminal mobile dans un réseau de communications radio
EP07821938A Withdrawn EP2095670A1 (fr) 2006-11-14 2007-10-29 Procédé, système et dispositif pour réaliser une procédure de connexion d'un terminal mobile dans un réseau de radiocommunication mobile

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP06124044.6A Active EP1924112B1 (fr) 2006-11-14 2006-11-14 Méthode, système et dispositif pour effectuer une procédure d'enregistrement d'un terminal mobile dans un réseau de communications radio

Country Status (3)

Country Link
US (1) US9301195B2 (fr)
EP (2) EP1924112B1 (fr)
WO (1) WO2008058843A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8863167B2 (en) * 2009-10-29 2014-10-14 Motorola Mobility Llc System providing sponsored content
IN2012DN02394A (fr) 2009-10-30 2015-08-21 Ericsson Telefon Ab L M

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10008653A1 (de) * 2000-02-24 2001-09-06 Siemens Ag Verbesserungen an einem Funkkommunikationssystem
US20060072520A1 (en) * 2000-03-23 2006-04-06 Chitrapu Prabhakar R Time synchronized standby state to the GPRS medium access control protocol with applications to mobile satellite systems
FR2843269B1 (fr) * 2002-08-01 2004-10-15 Cit Alcatel Dispositif de prise de controle de ressources dans un reseau de communications, pour l'insertion de trafic
FR2859058B1 (fr) * 2003-08-22 2005-09-30 Cit Alcatel Procede et dispositif de gestion de communications dans un reseau de communications a acces aleatoire, par multifenetrage de demandes d'acces au reseau
US7047009B2 (en) * 2003-12-05 2006-05-16 Flarion Technologies, Inc. Base station based methods and apparatus for supporting break before make handoffs in a multi-carrier system
FR2870662B1 (fr) * 2004-05-24 2006-08-18 Alcatel Sa Dispositif de routage local de trafics locaux au sein d'un reseau de communication radio
US20070123252A1 (en) * 2005-10-12 2007-05-31 Atc Technologies, Llc Systems, methods and computer program products for mobility management in hybrid satellite/terrestrial wireless communications systems
FR2895852B1 (fr) * 2006-01-03 2008-02-22 Alcatel Sa Reservation implicite de ressources dans un reseau de communication de type point a multipoint ou multipoint a multipoint

Non-Patent Citations (1)

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Title
See references of WO2008058843A1 *

Also Published As

Publication number Publication date
EP1924112B1 (fr) 2013-08-28
US9301195B2 (en) 2016-03-29
WO2008058843A1 (fr) 2008-05-22
US20100081437A1 (en) 2010-04-01
EP1924112A1 (fr) 2008-05-21

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