EP0900506A2 - Procede, dispositif et terminal pour l'extension d'un reseau de radiomessagerie unidirectionnelle pour former un reseau de radiomessagerie quasi bi-directionnelle - Google Patents

Procede, dispositif et terminal pour l'extension d'un reseau de radiomessagerie unidirectionnelle pour former un reseau de radiomessagerie quasi bi-directionnelle

Info

Publication number
EP0900506A2
EP0900506A2 EP97925852A EP97925852A EP0900506A2 EP 0900506 A2 EP0900506 A2 EP 0900506A2 EP 97925852 A EP97925852 A EP 97925852A EP 97925852 A EP97925852 A EP 97925852A EP 0900506 A2 EP0900506 A2 EP 0900506A2
Authority
EP
European Patent Office
Prior art keywords
paging
network
gsm
terminal
radio
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.)
Ceased
Application number
EP97925852A
Other languages
German (de)
English (en)
Inventor
Thomas Bungartz
Jan Dressel
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.)
Deutsche Telekom AG
Telekom Deutschland GmbH
Original Assignee
Deutsche Telekom AG
DeTeMobil Deutsche Telekom Mobilnet GmbH
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 Deutsche Telekom AG, DeTeMobil Deutsche Telekom Mobilnet GmbH filed Critical Deutsche Telekom AG
Publication of EP0900506A2 publication Critical patent/EP0900506A2/fr
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/022—One-way selective calling networks, e.g. wide area paging
    • H04W84/025—One-way selective calling networks, e.g. wide area paging with acknowledge back capability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/022—One-way selective calling networks, e.g. wide area paging
    • H04W84/027—One-way selective calling networks, e.g. wide area paging providing paging services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/02—Inter-networking arrangements

Definitions

  • the invention relates to a method for expanding a unidirectional paging network to a quasi bidirectional paging network, and to a device and a terminal for carrying out the method.
  • a GSM mobile radio network also offers limited paging functions via the Short Message Service (SMS).
  • SMS Short Message Service
  • a full-fledged paging service as is possible in radio paging with regard to functionality, number of subscribers and call throughput etc., cannot be simulated and implemented by the SMS infrastructure for technical - and above all cost reasons.
  • SMS Short Message Service
  • the paging is all one-way communication, i.e. the subscriber has no possibility to send a message himself.
  • the caller does not know whether the called party received or read the message.
  • An acknowledgment function would be advantageous here, by which the called party confirms receipt of the message.
  • two-way communication is required, with the associated infrastructure of transmitting and receiving devices.
  • a sufficiently powerful transmitter unit would also have to be integrated into the pager.
  • TANGO Bidirectional paging networks
  • the object is achieved by the features of patent claim 1.
  • a device and a terminal for carrying out the method are the subject of claims 19 and 24, respectively.
  • a paging network (paging network) and a telecommunications network, preferably a GSM mobile radio network, are connected to one another via a common access (gateway).
  • a common access preferably a GSM mobile radio network
  • the mobility management function in the GSM network enables the receiver to be located. This can be used for the paging zone assignment of the receiver and thus for saving airtime in the paging network.
  • the required airtime of a radio call is a measure of the transmission capacity and utilization of a radio network. In principle, necessary modifications are independent of the standard of the paging network. The method can therefore be used for any paging network.
  • Some paging systems e.g. ERMES
  • a so-called paging area update can be carried out via GSM Short Message Service Mobile Originated in the paging network.
  • the coupling of a GSM network to a paging network can be implemented technically by means of various concepts. It should be possible to use the Mobile Originated Short Message Service (for acknowledgment) and the mobility management function (for location determination) implemented in GSM.
  • the first concept provides for the connection of the GSM network to the paging network through a gateway, which can be implemented with a Short Message Service Center (SMSC).
  • SMSC Short Message Service Center
  • the functionality can be integrated into an existing SMSC.
  • a modification of an SMSC according to the requirements and the use as an independent network node exclusively for the application according to the invention is also possible.
  • the Short Message Service Center for example of the Dl mobile network, is already prepared for setting up the necessary gateway functions.
  • a second concept provides for the use of a special gateway computer, through which the two networks can be connected to one another without modifications.
  • the acknowledgment function is primarily used to indicate to the system that a call has been successfully transmitted and received by the subscriber, and therefore no new call transmission is necessary.
  • a further development of the invention provides that the subscriber can also send useful information (predefined and freely defined replies to the radio call) with the acknowledgment in a short message.
  • the paging system ERMES If used, it transmits the paging area code, which enables the terminal to recognize a change in the ERMES paging area.
  • a so-called ERMES paging area update can be carried out using the GSM function Short Message Service Mobile Originated.
  • the location information provided by the GSM mobility management can alternatively be used to determine the location area of the terminal.
  • the GSM Short Message Service is required on the mobile radio side. No voice information is transmitted.
  • the normal operating state of the end device will be a permanently switched-on radio pager and an (automatically) activated mobile radio part only for the GSM location updates or ERMES paging area updates and acknowledgment.
  • the advantage is a very high standby time for the end device due to the low energy consumption of the mobile radio part.
  • the location update procedure in the GSM network (for storing the location of the GSM terminal in GSM databases) can be cyclically carried out using a timer - for energy-saving reasons (automatic activation of the mobile phone component and implementation of a location update).
  • the cell phone part is switched off for a long time or there is no radio contact, no location update can be carried out be performed.
  • the end device may already be in a different area than the last paging zone determined. If a radio call is now sent and is not acknowledged within a predefined period, the following options are available:
  • the calls are sent in a constantly increasing radius, determined by a time factor, around the last determined call zone up to nationwide.
  • the paging is repeated a second time e.g. sent nationwide, which automatically triggers a location update procedure for paging zone assignment on receipt.
  • the paging is sent in the paging service's default call zone
  • the "economy" configuration is suitable for existing mobile radio subscribers or for those who would like to use the advantages of the method according to the invention without the use of new end devices.
  • a separate GSM end device and a pager end device are used. If a message is received from the pager, it can be acknowledged directly via the GSM device.
  • the multi-frequency dialing method (DTMF) can also be used to transmit the acknowledgment signals. It is therefore also possible to carry out the acknowledgment via any DTMF-compatible telephone.
  • DTMF multi-frequency dialing method
  • This system represents an independent end device.
  • This end device includes a pager (preferably a text pager) and a mobile radio part, which only has an SMS functionality. Both components are coupled internally via an interface (e.g. RS232).
  • a normal SIM card with SMS authorization is required to operate the device.
  • a SIM card designed only for this purpose is useful.
  • the mobile phone component should not send an IMSI Detach Message.
  • a version as PCMCIA variant for laptops / palmtops is also conceivable.
  • Normally, normal text pagers with interfaces can be used. These can be coupled, for example, in a special adapter in which the mobile radio part is implemented.
  • This system represents an independent end device and includes a pager, using the paging infrastructure, as well as a fully "talkable" mobile phone.
  • a normal SIM card is required to operate the device.
  • the pager can be operated via the integrated radio paging receiver (eg city call or in the future via ERMES) via the paging infrastructure and acknowledge via the GSM infrastructure.
  • the integrated radio paging receiver eg city call or in the future via ERMES
  • Figure 1 The principle of coupling a paging and GSM network
  • Figure 2 Simplified representation of the required network architecture
  • Figure 3 Coupling the networks. in a first embodiment
  • Figure 4 coupling the networks in a second embodiment
  • Figure 5 coupling the networks in a third embodiment
  • Figure 6 Schematic structure of a suitable terminal
  • Figure 7 Functional principle of call acknowledgment with the "economy" terminal configuration.
  • Figure 1 shows the general concept of the invention.
  • a call signal 2 is sent to a terminal 3, which is set up to receive radio calls.
  • the terminal 3 is GSM-compatible or at least can be coupled to a GSM mobile radio device.
  • This makes it possible to use the terminal to send an acknowledgment signal 4, which is associated with the paging, via the GSM mobile radio network 5 and which is received by a corresponding GSM switching center.
  • an interface 6 Between the 'paging network 1 and the cellular network 5 there is an interface 6 through which a direct connection between the two networks is established.
  • the acknowledgment signal 4 is transferred from the GSM mobile radio network 5 to the paging network 1 and registered or processed there.
  • the paging network is able to send out the radio calls specifically in the determined area of the subscriber.
  • the required network architecture is shown in a simplified form in FIG.
  • the paging switch 7 of the paging network here an ERMES paging network in the example, has access to a switching center MSC of the GSM network 5 via a direct interface 6 and a gateway 20.
  • the agency responsible for managing the subscriber data in the paging network 22 is with the station to
  • Data postprocessing 21 of the GSM network is connected, so that common subscriber data are accessible to both networks and are interchangeable.
  • the customer interface 23 of the paging system enables third parties to initiate a paging and the acknowledgment of the paging e.g. to answer on his phone.
  • the connection of the two networks, GSM network 5 and paging network 1 takes place through a gateway (access) which can be implemented with a Short Message Service Center 10 (SMSC) of the GSM network.
  • SMSC Short Message Service Center 10
  • GSM networks in particular the Di network
  • an SMSC already has gateway functions, i.e. it is prepared for connection to external systems.
  • the SMSC 10 essentially consists of two components:
  • Interworking Entity 11 The IW Entity 11 represents the interface to the signaling standard of the GSM network and has a MAP interface (MAP: Mobile Application Part). Existing MAP signaling procedures allow the location of the subscriber and thus the paging zone to be determined, as well as the SMS procedures that are necessary to acknowledge a paging.
  • Service Center 12 SC:
  • the Service Center 12 includes via a direct interface 12 to the switching center 7 (PNC: Paging Network Controller) of the paging network, which e.g. can be a standardized X.25 interface (packet-oriented transmission). An X.25 interface must also be provided in the paging network controller 7.
  • the databases required for assigning subscriber and device identifications, for determining the location information and for storing the status information of radio calls (which are to be acknowledged) are implemented in the service center 12.
  • the databases in the service center 12 have e.g. following entries:
  • PNC Paging Network Controller
  • PNC 7 The databases required for assigning subscribers (MSISDN / IMSI) and device identification (PagerID), for determining location information and for storing further status information from the respective radio calls should be implemented in PNC 7. Relevant subscriber data therefore only has to be administered and maintained at one point in the system. The PNC 7 needs the subscriber data in order to determine whether a radio call is to be sent to a subscriber and the procedures according to the invention are to be carried out. At this point, the connection between paging and GSM subscriber data can be established.
  • the PNC databases have e.g. following functions:
  • the PNC 7 checks and compares the data as to whether a short message contains information for acknowledging a transmitted call.
  • the PNC must also monitor the transit times between paging and acknowledgment and then decide whether to retry the paging.
  • the gateway computer is an aid with which access to the mobile radio network 5 is created. This makes it possible to monitor and display signal flows in the network, to simulate special signal flows and feed them into the network and to communicate with external components.
  • the gateway computer is a computer with an SS # 7 protocol stack and a connection to the SS # 7 network, which, after appropriate programming, can perform exactly the tasks described like a multilink monitoring system.
  • Signaling messages SS # 7 can send, the functions described above without modification of the existing Short Message Service Center (according to Concept 1) can be reached.
  • the databases for assigning subscriber and device identifiers, for determining the location information and for storing the status information of radio calls can e.g. be implemented on a separate database server, similar to Concept 1, which is connected to the gateway computer 14 via a suitable interface 16 in order to relieve it of complex database operations.
  • the gateway computer 14 is connected to the switching center 7 of the paging system 1 via a suitable interface 17. With a configuration tailored to this application, the gateway computer essentially consists of two components:
  • this module represents the interface to the SS # 7 network and has the ability to generate and send GSM MAP messages and to decode incoming GSM MAP messages. This enables the system to communicate with GSM network components and execute the GSM MAP procedures for acknowledgment and localization.
  • the multilink monitoring system is connected to a network for communication with the PNC via this component.
  • FIG. 5 shows a further possibility of the network connection between a GSM mobile radio network 5 and an ERMES paging network 1.
  • the network architecture used essentially corresponds to that of concept 1 according to FIG. 3.
  • the SMSC 10 is connected to the GSM network 5 via an SS # 7 interface.
  • the paging area code (paging zone code) periodically broadcast by the ERMES paging network 1 is received by the terminal 3 and by short message to the SMSC 10 (signal 4 ') and from there
  • the transmission of the location information of the GSM terminal is namely prevented, which is undesirable in the application according to the invention. If the transmission of the IMSI Detach Message is nevertheless permitted, the procedure does not return an MSC identifier if the mobile radio device is switched off. For a sensible use of the mobility management, however, it is necessary according to the invention that an MSC identifier is always returned which indicates the location of a mobile radio telephone at the MSC level. As explained, it is useful to suppress the IMSI Detach Message, but it is not absolutely necessary to use the invention.
  • the end device can be asked by a "system call" before sending the radio message to carry out a location update in the GSM network and thus to determine the location area.
  • the normal operating state of the terminal device will be a radio pager that is always switched on and a GSM mobile radio part that is only switched on for location determination and acknowledgment.
  • the location update procedure in the GSM network (for location determination) can be carried out cyclically / periodically - for energy saving reasons - using a timer (automatic switching on of the mobile phone component and implementation of a location update) or manually by pressing a button as a "follow me” function. It would also be conceivable to program this timer using a special radio call or a short message to set different timer values depending on the mobility of the subscriber. If the mobile radio part of the terminal 3 is switched off for a long time or if there is no radio contact, no GSM location update can be carried out and the terminal is located may already be in a different area than the identified paging zone.
  • Short message (e.g. at ERMES)
  • the paging network 1 sends the current paging area regularly (at intervals of less than one second), i.e. the
  • the terminal 3 receives and stores this current paging
  • the PNC 7 is informed via the gateway 20 and an update of the paging area is carried out there in the database for the respective subscriber entry (paging area update).
  • the terminal can constantly check whether it is in a new paging area by comparing it with the stored "old" paging area code. If the terminal detects that it is in a new paging area or the stored information about the paging area has been lost, a paging area update is started. This paging area update procedure can ensure that radio calls are always sent in the current paging area.
  • the GSM location update is only required to log the GSM component of the terminal in the GSM network and thereby enable short messages to be sent.
  • a switch from manual to automatic acknowledgment can be set on the end device.
  • the procedure can be applied analogously to the concepts described.
  • the acknowledgment function is primarily used to indicate to the system that a call has been successfully transmitted and received by the subscriber and that no new call transmission is necessary (acknowledge).
  • user information predefined or freely defined replies to the radio call
  • Special short messages can be sent from terminal 3 to acknowledge a received radio call. To do this, you first need to log into the GSM network. The terminal sends a short message to the short message service center 10. The service center 12 recognizes a short message that is intended to acknowledge a radio call. Certain parameters and possibly the text of the short message, which identify a paging, are determined / extracted by the service center 12 and corresponding information is transmitted to the paging network 1, for example when the service center 12 detects that a due to the entries in the status database Paging has been acknowledged. The entry in the status database and the short message in the SC can then be deleted.
  • Automatic acknowledgment by the end device When a radio call is received, the radio call is automatically acknowledged (if there is GSM radio coverage). The pager switches on the mobile radio part via the internal interface and there is an automatic acknowledgment via GSM after logging into the GSM network.
  • the pager switches the mobile part on when a message is received. Then the acknowledgment is done manually by pressing an acknowledgment button.
  • Advantage very high stand-by times of the receiver due to the low energy consumption of the cell phone part.
  • the logic of the terminal 3 After receiving a radio call, the logic of the terminal 3 generates a short message which contains all the data which are required to acknowledge the radio call.
  • the data contained in the call e.g. serial number of the message
  • system parameters e.g. date and time of receipt
  • data from the SIM card can be used for this.
  • Information on the MSISDN of the subscriber, the destination address and the service center address must be available.
  • the switch from manual to automatic acknowledgment can be set on the end device.
  • the subscriber can activate or deactivate the acknowledgment function for radio calls in the radio call system.
  • a non-acknowledgment of a message within a predefined period of time or after repeated call repetition has e.g. result in a nationwide call transmission. If there is still no acknowledgment, appropriate information could be sent to an alternative pager / SMS recipient or fax number.
  • a confirmation of receipt can be requested via an information service (e.g. voice server).
  • an information service e.g. voice server
  • the manual acknowledgment can also take place directly via the GSM terminal or any DTMF-capable telephone 18.
  • a location determination with the "economy" solution is not practical since the GSM terminal and pager are physically separate devices. The pager is operated in its normal paging zones or the call is only sent in these zones.
  • either the code can be filtered out of the PNC 7 when a special dialing number is selected, or a further access 19 to the SMSC 10 must be created and the acknowledgment message identified and evaluated there.
  • the recipient of the message can carry out the acknowledgment directly via his GSM terminal or via any DTMF-capable telephone 18. He has a personal acknowledgment code and gets e.g. in the case of numerical and text calls, the number of the radio call that must be acknowledged is communicated via the call numbering function. Parameter transfers are also possible, e.g. Yes: 007; No: 4711 ..
  • the acknowledgment code can be structured as follows: Access number for entering the
  • a terminal 3 consists of the components paging module 25, GSM module 26 and controller 27.
  • An external switch 28 can be provided, via which the user can switch off the GSM module in order to save battery capacity.
  • the terminal preferably has a display and additional control buttons (not shown). Power is supplied by batteries or rechargeable batteries.
  • the paging module 15 contains all the functionalities of a known pager. These may have been expanded to include additional functionalities:
  • the paging module can switch between the locking mode and non-locking mode.
  • the paging module 25 If the paging module 25 is in the locking mode and the radio supply for the current paging frequency is no longer sufficient to receive paging messages, all paging frequencies are scanned. The list those frequencies for which there is sufficient radio coverage is transmitted to the controller.
  • the subsequence mask must be sent to the controller 27 on request
  • Air interface must be communicated to the controller.
  • GSM module 26
  • the GSM module 26 consists of the mobile equipment and the SIM (Subscriber Identity Module). At least the functionalities that are required for acknowledgment operation are implemented in the GSM module. External modules such as keyboard, display, microphone and loudspeaker can be omitted.
  • the GSM module is switched on or off by the external switch 28.
  • the GSM module can be activated or deactivated by the controller 27. A switched-off GSM module cannot be activated by the controller 27 until it is switched on again via the switch 28.
  • the SIM in the GSM module is a standard SIM according to GSM 11.11. To operate the GSM module, the PIN on the SIM must be deactivated. From the perspective of a GSM network, an activated GSM module 26 behaves like a GSM terminal:
  • the activation of the GSM module 26 corresponds to the switching on of a GSM telephone by the subscriber.
  • the GSM module will log into an available GSM network.
  • An activated GSM module can transmit a GSM short message (SMS-MO) to the PNC specified by the controller at the request of the controller 27.
  • SMS-MO GSM short message
  • the IMSI detach may log out of the GSM network.
  • the GSM module informs the controller 27 of the state of its mobility management (MM) sublayer, and of the success or failure of an SMS sent.
  • MM mobility management
  • Controller 27 The controller 27 connects the paging module 25 and the GSM module 26 of the terminal 3 and controls activation, sending of short messages and deactivation of the GSM module 26. Triggered by the paging module 25, the controller 27 carries out two procedures, the paging Area update procedure and the acknowledge procedure.
  • the controller 27 can be implemented as an independent assembly or as a process in the control computer.
  • the controller 27 ensures that the PNC is able to send messages to the terminal again after the loss of the old paging area. If the paging module 25 is in locking mode and the radio supply to the locked paging area is no longer provided, the controller 27 is informed of this and starts the paging area update procedure.
  • the paging module scans the available paging frequencies.
  • the result is transmitted to the controller, which then carries out one of the following mechanisms:
  • the operator ID (OPID) of one or more paging areas is identical to the home OPID (OPIDhome) or with the last used OPID:
  • the controller 27 selects a paging area for this OPID.
  • the controller 27 activates the GSM module 26 and transmits the selected paging area (OPID, PA) with a GSM SMS to the PNC. After successful transmission, the paging
  • OPID paging area
  • the paging module 25 is brought into the non-locking state, whereby paging messages are expected on all available frequencies.
  • the GSM module 26 is activated and the list of the available OPIDs and paging areas is transmitted to the PNC via a GSM SMS. From this list, the PNC can select a network operator suitable for paging roaming and use it to transmit messages.
  • the available OPIDs and paging areas are continuously determined. If the list determined here differs from the last one transmitted, then if OPIDhome is not available, 2b) is executed, otherwise 1). It may be necessary to define a waiting time between two transmissions according to 2b). After the transmission of the short message, the GSM module 26 is deactivated.
  • the GSM module 26 is not activated. The transmission of information to the PNC is considered to have failed and will be suspended until it is switched on.
  • the activation of the GSM part 26 and the transmission of an SMS should preferably take place in the time in which the paging pager does not expect any messages. This could be done by evaluating the subsequence mask (SM). If the transmission of the parameters to the PNC fails, the controller 27 deactivates the GSM module 26 and tries a new paging area update attempt after a time to be defined. The paging module is brought into the non-locking state. As the number of unsuccessful paging area update attempts increases, the waiting time increases. The number of attempts is unlimited.
  • SM subsequence mask
  • the switching off of the GSM module 26 could be communicated to the PNC by a paging area detach.
  • the GSM module 26 is activated before switching off, an SMS with content to be defined is sent and the GSM module 26 is subsequently deactivated.
  • the paging module 25 is in the Brought non-locking state. If the transfer fails, no further attempt is made.
  • the controller 27 starts an acknowledge procedure as soon as the paging module 25 indicates the receipt of a paging message. First of all, the subscriber is informed of the receipt of the message and the possibility to select a manual confirmation (manual acknowledge). Thereafter, the controller 27 activates the GSM module 26 and transmits the confirmation for all as yet unconfirmed paging messages to the paging network center (PNC) in addition to those in the software of the Predefined responses of the terminal, these can be expanded by any responses received with the paging message. If the manual confirmation does not take place within a defined time, an automatic confirmation takes place.
  • PNC paging network center
  • the GSM module is activated and a short message is sent to the paging network center (PNC) as confirmation for all pending messages that have not yet been confirmed, in the order in which they were received. After successful transmission of all confirmations, the GSM module is deactivated.
  • the short message sent when a call is acknowledged contains the parameters RIC, paging area (OPID, PA) in which the message was received, time stamp and acknowledgment number in addition to the response that may have to be transmitted.
  • an implicit paging area update is carried out with the confirmation. If the transmission was successful, the paging module 25 is lured to the OPID and PA transmitted in the process.
  • the GSM module 26 is deactivated. After a time to be defined, another acknowledge Experiment carried out. The waiting time increases with the number of unsuccessful attempts. The number of attempts is limited. The unsuccessful transfer due to a lack of radio coverage is displayed to the subscriber so that the subscriber has the opportunity to enter the GSM coverage area. Another attempt to transfer the receipt can possibly. be started by the participant at the push of a button. The subscriber is informed of the successful transmission or the final failure to acknowledge messages.
  • the personalization of the terminal 3 is carried out as for the known pagers by the manufacturer or network operator.
  • the RIC, SM and PNC number are stored in the terminal in a non-volatile memory.
  • Intelligent Network IN functionality for enhanced call forwarding If mobile subscribers cannot be reached and an important telephone call cannot be placed as a result, a radio call is transmitted with the request to switch on the mobile radio telephone or to move into the coverage area of the mobile radio network.
  • the Call forwarding conditions can be selected based on origin and time.
  • Call forwarding for important messages Alerting by paging because of an urgent short message that cannot be transmitted.
  • the call forwarding conditions can be selected based on origin and time.
  • GSM DPC Destination Point Code
  • GSM GMSC Gateway Mobile Switching Center
  • GSM Global System for Mobile Coirt Communication
  • GSM GT Global Title
  • GSM Home Location Register
  • GSM IW Entity Interworking Entity
  • GSM International Mobile Subscriber Identity
  • GSM MTP Message Transfer Part SCCP
  • GSM Mobile Switching Center
  • GSM MSRN Mobile Station Roaming Number
  • GSM Mobile Station ISDN Number
  • ERP PNC Paging Network Controller
  • GSM SPC Signaling Point Codes
  • GSM Signaling System Number 7
  • GSM SC Service Center
  • GSM SCCP Signaling Connection Control Part
  • GSM SIM Subscriber Identity Module
  • SMS Short Message Service GSM
  • SMSC Short Message Service Center GSM
  • GSM Short Message Service Mobile Originated
  • SMSMT Short Message Service Mobile Tenninated
  • GSM TCAP Transaction Capability Application Part
  • GSM Visitor Location Register
  • Paging network call signal end device 4 'acknowledgment signal
  • GSM cellular network interface Paging Network Controller (PNC) Mobile Switching Center / Visitor Location Register Home Location Register (HLR) 0 Short Message Service Center (SMSC) 1 Interworking Entity (IW Entity) Service Center (SC) Interface between GSM u.
  • Paging network multilink monitoring system 5 Operation & maintenance 6 Administration interface (cross-network) 8 Telephone 9 interface 0 Access (gateway) 1 DPPS data postprocessing subscriber data management (in the paging network) 3 Customer interface (e.g. for paging orders) 4 Signal 5 Paging module 6

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

Abstract

L'invention concerne un procédé d'extension d'un réseau de radiomessagerie unidirectionnelle pour former un réseau de radiomessagerie quasi bi-directionnelle. Ledit réseau de radiomessagerie est relié à un réseau radiotéléphonique mobile par l'intermédiaire d'une interface se présentant sous la forme d'une liaison directe pour données, de sorte que l'échange direct de données est possible entre le réseau de radiomessagerie et le réseau radiotéléphonique mobile. L'émission de messages destinés à un terminal se fait de façon connue, mais la transmission de signaux d'accusé de réception pour un certain message de radiomessagerie et/ou la transmission d'autres signaux et messages sont exécutées par le terminal, par l'intermédiaire des canaux de signalisation du réseau radiotéléphonique mobile par lequel les signaux transmis sont retransmis, par l'intermédiaire de la liaison directe pour données, au réseau de radiomessagerie où elles sont alors traitées.
EP97925852A 1996-05-20 1997-05-20 Procede, dispositif et terminal pour l'extension d'un reseau de radiomessagerie unidirectionnelle pour former un reseau de radiomessagerie quasi bi-directionnelle Ceased EP0900506A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19620080 1996-05-20
DE19620080 1996-05-20
PCT/DE1997/001014 WO1997044965A2 (fr) 1996-05-20 1997-05-20 Procede, dispositif et terminal pour l'extension d'un reseau de radiomessagerie unidirectionnelle pour former un reseau de radiomessagerie quasi bi-directionnelle

Publications (1)

Publication Number Publication Date
EP0900506A2 true EP0900506A2 (fr) 1999-03-10

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Application Number Title Priority Date Filing Date
EP97925852A Ceased EP0900506A2 (fr) 1996-05-20 1997-05-20 Procede, dispositif et terminal pour l'extension d'un reseau de radiomessagerie unidirectionnelle pour former un reseau de radiomessagerie quasi bi-directionnelle

Country Status (4)

Country Link
EP (1) EP0900506A2 (fr)
AU (1) AU3088497A (fr)
DE (1) DE19721127C2 (fr)
WO (1) WO1997044965A2 (fr)

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EP0993741B1 (fr) * 1997-07-01 2001-11-14 Swisscom Mobile AG Procede d'acheminement de messages et dispositif adapte a cet effet
US7043262B2 (en) 1998-03-06 2006-05-09 Hans Peter Nageli Two-way pager and method for communicating preset messages over the global system for mobile communications (GSM/GPRS) network
AU2850299A (en) * 1998-03-06 1999-09-20 Hans Peter Nageli A two-way pager for providing two-way communication of alphanumeric messages over the global system for mobile communications (gsm/gprs) network
US6731942B1 (en) 1998-03-06 2004-05-04 Mirafin Ag Two-way pager for providing communication of alphanumeric messages over the GSM/GPRS network
DE59804845D1 (de) * 1998-05-20 2002-08-22 Swisscom Mobile Ag Verfahren und entsprechend angepasste vorrichtungen zur behandlung von programmbegleitenden digitalen daten aus radioprogrammen
DE19832594C2 (de) 1998-07-09 2002-10-24 Siemens Ag Optimiertes Kommunikationssystem für funkgestützte Verkehrsdienste
US6678258B1 (en) * 1998-11-30 2004-01-13 Motorola, Inc. Method and apparatus for paging a communication unit in a packet data communication system
DE19856441C5 (de) 1998-12-08 2004-11-18 Robert Bosch Gmbh Verfahren zur Übertragung von Kurznachrichten
US8629758B2 (en) 2011-01-04 2014-01-14 Critical Alert Systems, LLC System and method for transmitting messages received from a paging network on a paging device to electronic devices
US8331960B1 (en) 2011-06-08 2012-12-11 Critical Alert Systems Llc Systems and methods for communicating with a paging network operations center through wireless cellular devices

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US5247700A (en) * 1990-11-16 1993-09-21 Universal Cellular, Inc. Cellular telephone with pager
BR9307699A (pt) * 1992-11-27 1999-11-16 Motorola Inc Sistema paginador e método com sinais de acuso de recibo usando sistema de rádio telefone
DE4332758A1 (de) * 1993-09-25 1995-03-30 Sel Alcatel Ag Funkendgerät zum Senden und Empfangen von Kurznachrichten
EP0697781B1 (fr) * 1994-08-18 2001-09-26 Hewlett-Packard Company, A Delaware Corporation Procédé et dispositif pour l'établissement de communications bidirectionelles entre une appareil d'appel et un fournisseur de service d'appel
AU3682795A (en) * 1994-09-12 1996-03-29 Seiko Communications Systems, Inc. Acknowledge back pager using secondary transmission source
EP0830797B1 (fr) * 1995-05-30 2000-10-11 Smartmove, Naamloze Venootschap Procede de communication avec des objets et/ou d'observation et/ou de localisation d'objets et module utilise a cette fin

Non-Patent Citations (1)

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See references of WO9744965A3 *

Also Published As

Publication number Publication date
AU3088497A (en) 1997-12-09
WO1997044965A2 (fr) 1997-11-27
DE19721127C2 (de) 2003-11-20
DE19721127A1 (de) 1997-12-18
WO1997044965A3 (fr) 1997-12-31

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