WO1999048319A1 - Method, mobile station and network device for establishing connections for services offered in a service area - Google Patents
Method, mobile station and network device for establishing connections for services offered in a service area Download PDFInfo
- Publication number
- WO1999048319A1 WO1999048319A1 PCT/DE1999/000512 DE9900512W WO9948319A1 WO 1999048319 A1 WO1999048319 A1 WO 1999048319A1 DE 9900512 W DE9900512 W DE 9900512W WO 9948319 A1 WO9948319 A1 WO 9948319A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- radio
- lsa
- service area
- area
- parameters
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
Definitions
- the invention relates to a method, a mobile station and a network device of a radio communication network for establishing a connection for services that are made available in a service area that can be determined by radio cell clusters.
- GSM 02.43 "Support of Localized Service Area (SoLSA), draft version in the meeting from February 23-27, 1998, is a procedure for establishing a connection for services that can be determined in a location that can be determined by radio cell clusters
- Localized service area is made available to the radio subscribers of a radio communication network, which in the present example is operated according to the GSM standard, with the aim of providing individual subscribers or groups of subscribers with specific services or a specific set of services - For example, including the charging of the connections - within a defined localizable area.
- the local extent of the service area knows no regional limit in principle, so that in extreme cases a globally distributed area can be used to use the services.
- the service area reaches the employees r of a globally active company worldwide that can use the usual radio resources of a radio communication network to establish outgoing connections with one another via their mobile stations and receive incoming connections.
- the mobile mobile station of the radio subscriber In order to be able to enjoy the services that can be used in the predefinable service area, the mobile mobile station of the radio subscriber must recognize whether it is in the coverage area of a radio cell of the radio cell cluster and thus in the access area of the service area. area.
- service area identifiers for identifying the service areas and cell identifiers for identifying the radio cells are used.
- One procedure provides for a list of all cell identifiers belonging to the service area to be stored on the SIM card (Subscriber Identity Module) of the mobile station in order to compare them with the cell identifier of the radio cell in which the mobile station is currently located, which is transmitted by the radio station . If the comparison result is positive, a connection is established in this radio cell.
- the disadvantage here is that the list can be very long and the memory capacity of the SIM card is therefore insufficient. Even downloading the cell IDs regionally from the network involves a great deal of effort, in this case at the expense of the radio interface in the downward direction. Above all, a change in the cell structure, e.g. a network expansion by adding further radio cells to the problem of having to update all SIM cards affected by the change with each change.
- Another procedure provides for a list of service area identifiers to be broadcast permanently by the radio station in each radio cell belonging to at least one service area.
- the mobile station compares the area codes received with the area code (s) stored on its SIM card. If there is identity for at least one area identifier, a connection is established in this radio cell of the service area.
- a disadvantage of this solution is that the list to be transmitted on the network side is very extensive in the event that a radio cell belongs to a very large number of service areas.
- the capacity of the control channel (BCCH for GSM standard) for sending the service area identifiers is limited, so that with a plurality of service area identifiers long cycles in the range of a few seconds for the transmission arise.
- Fast moving mobile stations cannot do the whole list at all check because a radio cell change is already required for radio-technical reasons.
- the service area is defined by geographical parameters and a radio coverage area defined for the radio station by geographical parameters described. Furthermore, on the mobile station side for an outgoing connection and / or on the network side for an incoming connection, the geographic parameters for the service area are compared with the geographic parameters for the defined area and, if the geographic parameters at least partially match, the outgoing connection and / or the incoming connection into one Radio cell of the service area set up.
- the mobile station has a storage unit for storing the geographical parameters describing the service area.
- a control unit for comparing the stored geographic parameters with the geographic parameters describing the area defined for the radio station and for establishing the defined outgoing connection into the service area provided at least partial agreement of the geographic parameters for the service area with the geographic parameters for the defined area.
- the network device has a storage unit for storing the geographic parameters describing the service area and the geographic parameters describing an area defined for the radio station. Furthermore, it has a control unit for comparing the stored geographic parameters and for establishing the incoming connection to the service area with at least partial agreement of the geographic parameters for the service area with the geographic parameters for the defined area.
- the object of the invention avoids long lists of cell identifiers that are to be stored on the mobile station side and avoids the problem of having to send many identifiers of the service areas in a downward direction via broadcast over the radio interface.
- An important advantage of the invention is that the stored geographic parameters are independent of changes in the cell structure of the network and therefore no update effort is required when inserting new radio cells into the radio communication network. Not the size, but at best the geographical shape of the service area has an influence on the amount of memory required to describe the respective service area and the area defined for a radio station.
- the geographic parameters for the service area of the radio subscriber are stored for the outgoing connection from the mobile station and compared with the geographic parameters for the defined area sent via the radio interface.
- the storage effort in the mobile station is low due to the geographic parameters.
- the criterion for access to the The radio cell is based on whether the area, which is only described geographically and which is defined for the radio station, lies wholly or partly in the service area, which is also described geographically.
- a further development of the invention provides that for the incoming connection from a network device, the geographic parameters for the service area are stored and compared with the geographic parameters for the defined area.
- the network-side broadcast thus only takes place in the radio cells that were previously selected as belonging to the service area on the basis of the geographic parameter comparison. This saves signaling and other.
- the area of the radio station used for the comparison can preferably be the area covered by the radio station itself, or an intersection, a subset or an excess of it. This means that the defined area is not necessarily limited to the radio coverage area of the radio station, but other geographical areas - even independent of the radio coverage area - can be defined for the use of the services and stored for the parameter comparison.
- location coordinates are particularly suitable as geographic parameters for describing the areas.
- location coordinates can also be combined to form a polygon for the description of the service area.
- Geometric figures - e.g. Rectangles, circles, ellipses, etc. - to be used as geographic parameters for the description of the service area.
- a combination of using geographic parameters with cell identifiers to describe the service area entails that, in the case of a hierarchical structure of radio cells, the cell identifiers are compared in each case with a cell identifier sent by the radio station and, if there is at least one match, used to set up the outgoing connection to the service area. This solves the problem that it is not possible to distinguish between overlay radio cells and underlay radio cells in hierarchical networks when using exclusively geographic area descriptions, since they cover at least some of the same geographic areas.
- Such a combination is preferably designed in such a way that the cell identifications which identify radio cells within the geographical service area are identified as not belonging to the service area.
- An alternative to this is to mark the cell identifiers that identify radio cells outside the geographical service area as belonging to the service area.
- Another combination of the use of geographical parameters with service area identifiers for describing the service area provides that in addition to the geographical parameters, these service area identifiers are stored on the mobile station side and on the network side in order to ensure that in the case of a hierarchical structure of radio cells on the mobile station side to compare service area IDs received by the radio station with the stored service area IDs and, if there is at least one match, to use them to set up the outgoing connection into the service area.
- Show 1 shows the block diagram of a radio communication network with connections to mobile stations via a radio interface
- the structure of the radio communication network PLMN shown in FIG. 1 corresponds to a known GSM system with a TDMA multiple access method (Time Division Multiple Access) on a radio interface AIF for connecting mobile stations MS to their network devices.
- the invention can also be applied to other radio communication networks which use other multiple access methods - for example with a CDMA component - or have a different network structure.
- connections vl, v2 ... vx run between mobile mobile stations MS and fixed radio stations BTS of the communication network PLMN on the radio interface AIF of the radio communication system.
- Radio station BTS is a base station which is arranged to cover a radio area - e.g. consisting of at least one radio cell - so that the connections from / to the mobile stations MS that are in their radio area can be established, cleared down and maintained via the radio interface AIF .
- a radio area - e.g. consisting of at least one radio cell - so that the connections from / to the mobile stations MS that are in their radio area can be established, cleared down and maintained via the radio interface AIF .
- the connections can be both outgoing connections (Mobile Originated Calls and incoming connections (Mobile Terminated Calls) 8th
- Each radio station BTS is connected to a base station controller BSC, the number of which can vary depending on the radio coverage of the communication network.
- BTS radio stations and BSC radio station controls form the BSS base station system responsible for the radio functions.
- the radio communication network PLMN also has switching facilities, the mobile switching centers MSC / VLR, which are networked with one another or have access to another communication network, e.g. a fixed network PSTN.
- the mobile switching center MSC / VLR is assigned a decentralized subscriber database, the visitor register VLR, for storing subscriber data of the radio subscribers within its area of responsibility.
- the mobile switching center MSC / VLR is connected to the base station controller BSC.
- At least one central subscriber database, the home location register HLR is also provided in the radio communication network PLMN for storing the subscriber data of all radio subscribers registered in the communication network.
- An AC authentication center is connected to the home register.
- An operations and maintenance center implements control and maintenance functions in the radio communication network or for parts thereof.
- Each network device usually has a control unit ST for controlling and performing its functions.
- the radio communication network PLMN has a further network device SOLSV (server) which supports one or more services on the network side (SoLSA, Support of Localized Service Area), which is only available in a service area that can be determined by radio cell clusters (Localized Service Area). offered and can be used by certain radio subscribers.
- SoLSA Support of Localized Service Area
- the aim of this method is to provide specific services or a specific set of services to individual subscribers or groups of subscribers within the defined localizable area, see also ETSI recommendation GSM 02.43 "Support of Loca lised Service Area "", February 1998.
- the network device SOLSV is connected to the base station controller BSC, but can also be connected to any other network device or be an integral part of it.
- Both the mobile station MS - in the example the mobile station MS of the radio subscriber A - and the network device SOLSV have a storage unit SIM, SP and a control unit ST-M, ST-S.
- a transceiver unit TRX for transmitting and receiving radio signals via the radio interface AIF is also provided in the mobile station MS.
- the storage unit SIM of the mobile station consists of the well-known subscriber module (Subscriber Identity Module), in which the geographic parameters GP-LSA used according to the invention to describe a service area are stored.
- the radio station BTS responsible for the radio subscriber A or its mobile station MS sends geographic parameters GP-DA in the downward direction via the radio interface AIF, which define an area defined for the radio station BTS, e.g. describe their radio coverage area or an intersection, a subset or a superset thereof.
- Both the geographic parameters GP-LSA for the service area and the geographic parameters GP-DA of the defined area are also stored on the network side, preferably in the storage unit SP of the network device SOLSV.
- the control unit ST-M of the mobile station MS compares the geographic parameters GP-LSA with the received geographic parameters GP-DA and, if the geographic parameters at least partially match, the outgoing connection vl (MOC) is set up in a radio cell of the service area.
- the network device SOLSV compares the stored geographic parameters GP-LSA and GP-DA in order to find an at least partial match 10
- the object of the invention avoids long lists of cell identifiers which are to be stored on the mobile station side, and avoids the problem of having to send many identifiers of the service areas in a downward direction via the radio interface AIF.
- An important advantage of the invention is also that the stored geographic parameters GP-LSA are independent of changes in the cell structure of the network and therefore there is no updating effort when inserting new radio cells into the radio communication network PLMN. Not the size, but at best the geographical shape of the service area has an influence on the memory requirements for describing the respective service area and the area defined for the radio station.
- cell identifiers CID of radio cells for describing the service area can nevertheless be entered in the subscriber module in order to compare the stored cell identifiers CID with a cell identifier sent by the radio station BTS and at least in the case of a hierarchical structure of radio cells initiate a match to set up the outgoing connection into the service area or the corresponding radio cell.
- This solves the sub-problem that if only geographical area descriptions are used, for example, no distinction can be made between overlay radio cells and underlay radio cells in hierarchical networks, since they cover at least some of the same geographical areas.
- the cell identifiers CID are located in the subscriber module SIM of the mobile station MS as in the storage unit SP of the network device SOLSV. Cell identifiers are preferably CID, the radio cells within the geographical service area 11
- one or more service area identifiers LSA-ID are optionally entered on the mobile station side - in the subscriber module SIM - and on the network side - in the storage unit SP.
- the service area identifiers LSA-ID received from the radio station BTS are compared on the mobile station side with the stored service area identifier (s) LSA-ID and, if there is at least one match, for establishing the outgoing connection to the service area or the corresponding radio cell .
- the control unit ST-M generates a connection setup message vreq for the outgoing connection MOC and sends it on a control channel - for example the BCCH control channel (Broadcast Control Channel) - to the base station system BSS or to the radio station responsible for it.
- the request vreq usually contains a subscriber identity imsi, location information lai and a device identifier imei.
- the radio station of the base station system BSS sends the geographic parameters GP-DA, which in the simplest case consist of location coordinates of their own location and / or location coordinates of the area defined for them, back to the mobile station MS, where they are stored for the subsequent comparison.
- Geographic parameters GP-DA can also be made available to the radio station by the SOLSV network device.
- the comparison of the geographic parameters GP-LSA and GP-DA in the mobile station follows, carried out by the control unit ST-M. If the comparison result shows a partial or complete agreement, i.e. Coverage or overlap of the geographically described areas, the mobile station initiates a connection setup message setup for the connection vl (MOC) in the service area in order to make the services available to the radio subscriber. If the comparison result is negative, the mobile station MS is currently not in the radio-technical catchment area of a service area, so that no connection setup message is generated for the use of these special services. A connection setup message to a radio station of the radio communication network PLMN for the usual communication can nevertheless be sent if the radio subscriber has registered and can log in.
- connection setup message setup for a radio station of the radio communication network PLMN for the usual communication can nevertheless be sent if the radio subscriber has registered and can log in.
- the base station system BSS When the incoming connection is present, the base station system BSS receives a connection setup message vreq with the information typical for incoming connections MTC.
- the base station system BSS - for example the base station control, see FIG. 1 - then requests the network device SOLSV with a selection message csel to check whether there is a geographical description of a service area in the storage unit SP and - if this is the case, whether this area is at least partially geographically covered by the defined area.
- the network-side comparison of the geographical parameters GP-LAS and GP-DA is carried out by the control unit ST-S. If it selects one or more radio cells, it sends a positive response message idc with information about the selected cell (s) back to the base station system BSS.
- the radio station sends a pag (paging) message on the control channel - for example the BCCH control channel - to those in the cell 13
- connection setup message setup for the connection vl (MTC) is then sent from the base station system BSS or from the radio station responsible for it to the service area in order to make the services available to the radio subscriber.
- FIG. 3 and 4 show examples for the description of a service area LSA (Localized Service Area), which, in contrast to a usual location area (location area) arbitrarily locally - also across network boundaries, for example for a worldwide connection of company employees via company-internal mobile communication according to a defined service - can be determined.
- LSA Localized Service Area
- location area location area
- FIG. 3 it is assumed that there are several areas DA defined for radio stations BS A, BS B, BS C, BS D, BS E, BS F and BS F.
- the area DA can be the radio coverage area with at least one radio cell that is serviced by the respective radio station. However, it can also be defined independently of the radio coverage area, which leads to any geographical area.
- the service area LSA in the present example consists of a polygon that connects several location coordinates P1, P2 ... P5.
- Each location coordinate Pl ... P5 forms geographic parameters GP-LSA, for example defined by a geographical longitude and a latitude.
- the location coordinates P1, P2 ... P5 include the associated geographic longitude gLl and latitude gBl, the geographic longitude gL2 and latitude gB2 ... the longitude gL5 and latitude gB5.
- location coordinates are summarized for the description of the service area LSA, in principle individual location coordinates - for example the coordinates of the location of the respective radio station - or geometric figures (rectangles, ellipses, circles, ...) can also be used as geographic parameters GP -LSA can be used.
- the comparison of the areas based on geographic parameters is carried out by the mobile station MS, but can also be carried out in a corresponding manner on the network side by the network device specified above.
- the radio coverage areas of the radio stations BS A ... BS G are determined by location coordinates, each of which consists of the associated geographic length gLA and geographic latitude gBA for the radio station BS A, geographic longitude gLB and geographic latitude gBB for the radio station BS B. .. consist of the associated geographical longitude gLG and geographic latitude gBG for the radio station BS G.
- the location coordinates form the geographic parameters GP-DA for describing the respective area DA, which are transmitted in a downward direction by the radio station BTS on the control channel BCCH and are finally compared on the mobile station side with the stored geographic parameters GP-LSA.
- the result of the comparison shows that only cells of the radio coverage areas BS A, BS D, BS C are recognized as belonging to the service area LSA, since they lie within the polygon P1 ... P5. If the mobile station is in one of these cells, the connection can be set up for incoming / outgoing connections for the use of one or more services by the radio subscriber.
- FIG. 4 shows in an extension to FIG. 3 the case where a further geographical parameter in the form of a radius rA has been added to the location coordinates with the associated geographic longitude gLA and geographic latitude gBA for the radio station BS A.
- the radii 15 consisting of the geographic longitude gLB, the geographic latitude gBB, the radius rB ... and out the longitude gLG, the latitude gBG, the radius rG.
- FIG 4 shows that cells of the radio coverage areas BS A, BS B, BS C, BS D, BS G are recognized as belonging to the service area LSA, since the radius circles of the corresponding areas DA are each the polygon Cut P1 ... P5. If the mobile station is in one of these cells, the connection can be set up for incoming / outgoing connections for the use of one or more services by the radio subscriber.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99913090A EP1064814A1 (en) | 1998-03-19 | 1999-02-25 | Method, mobile station and network device for establishing connections for services offered in a service area |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19812214 | 1998-03-19 | ||
DE19812214.4 | 1998-03-19 |
Publications (1)
Publication Number | Publication Date |
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WO1999048319A1 true WO1999048319A1 (en) | 1999-09-23 |
Family
ID=7861636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/DE1999/000512 WO1999048319A1 (en) | 1998-03-19 | 1999-02-25 | Method, mobile station and network device for establishing connections for services offered in a service area |
Country Status (3)
Country | Link |
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EP (1) | EP1064814A1 (en) |
CN (1) | CN1302520A (en) |
WO (1) | WO1999048319A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005122524A1 (en) | 2004-06-07 | 2005-12-22 | Nokia Corporation | Determining geographical position in ipv6 networks |
EP1796421A1 (en) * | 2005-03-09 | 2007-06-13 | Huawei Technologies Co., Ltd. | A method for restricting the terminal to predetermined area or operator |
DE102008044929A1 (en) * | 2008-06-19 | 2009-12-24 | Deutsche Telekom Ag | Special mobile radio supply with own access management and blocking function |
Citations (5)
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EP0641137A2 (en) * | 1993-08-27 | 1995-03-01 | Siemens Aktiengesellschaft | Method and apparatus for access restriction to a mobile radio system |
WO1996027996A1 (en) * | 1995-03-08 | 1996-09-12 | Northern Telecom Limited | Cellular radio communications system |
US5568153A (en) * | 1995-05-30 | 1996-10-22 | Telefonaktiebolaget Lm Ericsson | Individually defined personal home area for subscribers in a cellular telecommunications network |
EP0749254A1 (en) * | 1995-06-15 | 1996-12-18 | Nokia Mobile Phones Ltd. | Multiple-level home area pricing for cellular mobile telephones |
US5802468A (en) * | 1995-06-28 | 1998-09-01 | Mci Corporation | System and method for identifying calling areas within a communication system |
-
1999
- 1999-02-25 WO PCT/DE1999/000512 patent/WO1999048319A1/en not_active Application Discontinuation
- 1999-02-25 EP EP99913090A patent/EP1064814A1/en not_active Withdrawn
- 1999-02-25 CN CN99806442A patent/CN1302520A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0641137A2 (en) * | 1993-08-27 | 1995-03-01 | Siemens Aktiengesellschaft | Method and apparatus for access restriction to a mobile radio system |
WO1996027996A1 (en) * | 1995-03-08 | 1996-09-12 | Northern Telecom Limited | Cellular radio communications system |
US5568153A (en) * | 1995-05-30 | 1996-10-22 | Telefonaktiebolaget Lm Ericsson | Individually defined personal home area for subscribers in a cellular telecommunications network |
EP0749254A1 (en) * | 1995-06-15 | 1996-12-18 | Nokia Mobile Phones Ltd. | Multiple-level home area pricing for cellular mobile telephones |
US5802468A (en) * | 1995-06-28 | 1998-09-01 | Mci Corporation | System and method for identifying calling areas within a communication system |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005122524A1 (en) | 2004-06-07 | 2005-12-22 | Nokia Corporation | Determining geographical position in ipv6 networks |
EP1754361A1 (en) * | 2004-06-07 | 2007-02-21 | Nokia Corporation | Determining geographical position in ipv6 networks |
US7995997B2 (en) | 2004-06-07 | 2011-08-09 | Spyder Navigations, L.L.C. | Determining geographical position in IPV6 networks |
EP1796421A1 (en) * | 2005-03-09 | 2007-06-13 | Huawei Technologies Co., Ltd. | A method for restricting the terminal to predetermined area or operator |
EP1796421A4 (en) * | 2005-03-09 | 2007-08-22 | Huawei Tech Co Ltd | A method for restricting the terminal to predetermined area or operator |
DE102008044929A1 (en) * | 2008-06-19 | 2009-12-24 | Deutsche Telekom Ag | Special mobile radio supply with own access management and blocking function |
Also Published As
Publication number | Publication date |
---|---|
EP1064814A1 (en) | 2001-01-03 |
CN1302520A (en) | 2001-07-04 |
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