CN1158207A - Communication system and call establishment methods - Google Patents
Communication system and call establishment methods Download PDFInfo
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- CN1158207A CN1158207A CN 96190745 CN96190745A CN1158207A CN 1158207 A CN1158207 A CN 1158207A CN 96190745 CN96190745 CN 96190745 CN 96190745 A CN96190745 A CN 96190745A CN 1158207 A CN1158207 A CN 1158207A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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]
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Abstract
The invention relates to a communication system and call establishment methods. A communication system comprising a cellular mobile communication network, which includes a mobile services switching center (MSC), a base station controller (XBSC) and base stations (BTS), as well as a private branch exchange system (PABX) having at least one base station (PABX-BTS). In the invention, the base station controller of the mobile communication network is provided with an interface to which the extension side of the PABX is coupled. The interface between the base station controller and the PABX is a standard PABX signalling interface towards the extensions. The trunk line side of the PABX is connected e.g. to a PSTN local exchange. The base station (PABX-BTS) under control of the base station controller is placed in that space or building which is the desired location for an office cell of the wireless PABX. Between the base station controller and the base stations there exists a standard signalling interface of the mobile communication network, and the base station of the office cell (10) has a standard interface of the mobile communication network. This concept makes it possible to provide a radio interface of the mobile communication system for a standard PABX of the fixed network.
Description
The present invention relates to a kind of by a communication system that comprises that the cellular mobile communications networks of a mobile services switching centre, a base station controller and several base stations and private branch exchange (PBX) system that has at least one base station constitute.
Traditional access technology of fixed-line telephone network requires all to want the independent subscriber's line of laying a two-wire from Local Exchange for each subsets.Yet because the develop rapidly of wireless access technology in data communication field, therefore increasing new user is wireless with being connected of communication network.It is analog cordless telephone (for example CT1 system) that first generation wireless user connects, comprising a base station and a hand-held mobile phone that is connected with a wire user circuit of Public Switched Telephone Network.The second generation is the digital cordless phone for the CT2 system.Except the conventional cordless phone function, the CT2 system also provides so-called distant point (Telepoint) professional and wireless PABX (PABX).And, develop a kind of standard for the Digital Enhanced Cordless Telecommunications of being abbreviated as DECT.To a great extent, DECT and CT2 are similar, but have adopted the TOMA technology.In addition, realized the cordless system based on the radio interface of the mobile communication system such as the NMT system, wherein relevant with features user mobility is restricted or does not have fully.
A kind of form of radio communication is a mobile communication system, and the user in the net does not have fixing access point fully.Yet the user can be by any one base station and Netcom letter in the net.Can both receive correct called party at any time for mobile terminating is called out, net is being safeguarded user position information at customer data base.When net received a mobile terminating calling, first MSC in the net just inquired about customer data base, obtains routing address.
A field of noting of radio communication is a WPABX wireless PABX.As is generally known PABX is the telephone exchange of a kind of office special use, has the trunk line that a plurality of extension sets and minority are received Local Exchange.At PABX, can very economically set up from of the Internal call of an extension set to another extension set (freely), also can set up the external call between an extension set and the PSTN trunk line.With regard to basic structure, a WPABX wireless PABX is exactly traditional " wired " PABX usually, and just the telephone wire in the building is partially or completely replaced by dedicated radio link.The radio standard that is hopeful to can be used for PABX for example is CT2 above-mentioned and DECT, and perhaps developing from pan-European digital mobile communication system GSM draws.The advantage of WPABX wireless PABX claim into:
Mobility-the user of terminal equipment no longer needs to be in specific place in the building;
Individual's polarization-ratio is easier to the personnel outer with being in office building and contacts;
Reduced the investment of in building, laying telephone wire; And
Do not change the shop or safeguard PABX extension telephone line problem.
As noted above such, WPABX wireless PABX normally uses CT2 or DECT radio interface to realize by the end of extension at switch.The trunk line of PABX is received PSTN Local Exchange in a conventional manner.Therefore, the mobility more freely that WPABX wireless PABX provided is only limited to the radio coverage area of the base station of PABX itself, just office environment.And be limited to distant professional in office outdoor application telephone office.
For the mobility that enlarges wireless subscriber stations has proposed several solutions that WPABX wireless PABX organically are combined into an integral body as a part and a mobile communication system.In this case, the trunk line of WPABX wireless PABX terminates to the BSC or the MSC of traditional base station, and the end of extension of PABX resembles the situation that WPABX wireless PABX and PSTN net is connected with CT2, DECT or similarly radio interface realization.For location management, the wireless user resembled to the common mobile subscriber in the mobile radio communication manage.On principle, this can make a wireless user enter another WPABX wireless PABX from a WPABX wireless PABX, if these two PABX receive same mobile radio communication.In addition, adopting the telephone set of prior art can be dual-mode equipment, both can with the base station cooperating of WPABX wireless PABX, also can with the base station cooperating of mobile radio communication.Therefore, subscriber equipment has can overflow the mobility that has in whole net, and it is very economical to carry out the PABX Internal call in office.Yet therefore these schemes make that the external call expense is bigger in order to set up the process that external call need utilize mobile radio communication.In addition, require special-purpose solution usually aspect contact signaling between each elementary cell of mobile radio communication and the signaling used at the radio interface of PABX.Say that again in order to utilize all functions of mobile radio communication, requiring subscriber equipment is bimodulus, this has just increased the cost of subscriber equipment.
An object of the present invention is to propose a kind of communication system, wireless user's switching system can be realized in conjunction with mobile radio communication in this communication system, and the change of in customer switching system or mobile radio communication, need doing than before all lack.
Another object of the present invention is to provide economic inside and outside calling with the WPABX wireless PABX that is connected with mobile radio communication.
A further object of the present invention is to propose a kind of mobile radio communication and WPABX wireless PABX wherein to have the communication system of same radio interface and same subscriber equipment.
These purposes realize by a kind of communication system of being made up of a cellular mobile communications networks that comprises a mobile services switching centre, a base station controller and several base stations and customer switching system with at least one base station.According to the present invention, the feature of this communication system is: the user side of PABX system is received BSC, and trunk side is received another communication network; PABX receives base station controller in the base station; And base station controller is configured to the customer call that starts from the PABX base station is received the PABX system and will be received the PABX base station by the calling that the PABX system enters.
The invention allows for and a kind ofly set up a method of breathing out in the communication system that user's exchange (PABX) system that the cellular communications network that comprises a mobile services switching centre, a base station controller and several base stations by and have at least one base station forms, this method comprises from the user and sends the step of a connection request and the step of startup call setup through the PABX base station to base station controller.According to the present invention, the feature of this method is: the transmit leg at base station controller check connection request is a PABX user or the mobile communication network users of a standard; To receive that user side is connected with base station controller and PABX system that trunk side is connected with another communication network from the PABX user's of base station controller calling; And if the user is not a PABX user, mobile services switching centre is received in calling.
The present invention also provides a kind of method of setting up a terminating call in the communication system that user's exchange (PABX) system that the cellular mobile communications networks that comprises a mobile services switching centre, a base station controller and several base stations by and have at least one base station forms, receives a terminating call to PABX user in the PABX system in this method.According to the present invention, the feature of this method be comprise the following steps: by customer switching system with the user side of PABX system and base station controller that described PABX base station is connected in start call setup; Send a beep-page message through the PABX base station to described PABX user from base station controller; The acknowledge message that reception is sent from PABX user; Between base station controller and PABX user, set up the connection that meets mobile radio communication; And between PABX user and described PABX system, set up and be connected through the voice of base station controller with the PABX base station.
According to the present invention, the BSC of mobile radio communication has been equipped with an interface that is connected with the branch pusher side of PABX.The trunk side of PABX is connected with the Local Exchange of a PSTN net.One or more base stations under BSC control are arranged in space or the building on the position suitable to the office sub-district of WPABX wireless PABX.Under this applicable cases, this base station will be called the PABX base station.The mobile radio communication signaling interface that a standard is arranged between BSC and PABX base station, and the PABX base station has the mobile radio communication radio interface of a standard.Interface between BSC and PABX be a standard towards the PABX of extension set signaling interface.In a preferred embodiment of the invention, this interface comprises the PABX extension line commonly used of a series of BSC of receiving.
This idea makes the PABX of a conventional fixed net can obtain a mobile communication system radio interface and needn't change the signaling interface of these standards.The elementary cell that unique the present invention need make it increase some functions is BSC.
The capacity of BSC is with enjoying, so that be PABX base station and base station of mobile communication network standard both sides service simultaneously.Therefore, when carrying out local call in PABX, the long-time transmission that should avoid might occurring between BSC and the MSC connects, but some standard features of mobile radio communication are as authentication and encryption, still available.
Subscriber board to WPABX wireless PABX does not have special requirement, and they can be the general mobile platform of mobile radio communication.Like this, they also can communicate by the standard base station of mobile radio communication.These travelling carriages can be treated to domestic consumer's platform of mobile radio communication outside the PABX base station of their ownership.
In a preferred embodiment of the invention, can also be by being that a common mobile communication network users distributes a PABX Subscriber Number to make him become a PABX user.This Subscriber Number can be a PABX extension or other are with travelling carriage and a specific PABX extension set corresponding identifier.Like this, mobile subscriber's travelling carriage can be used as cordless telephone in office building, and can be used as common travelling carriage outside office building.The Route Selection of terminating call has two kinds of modes.If what the calling party dialled is the PABX Subscriber Number, public switched telephone network PSTN just passes to WPABX wireless PABX with calling, and the radio interface between PABX and BSC is received travelling carriage with calling again.If what the calling party dialled is PLMN number (as Mobile Subscriber International ISDN Number), PSTN just will call out and directly pass to PLMN, should call out with the call establishment terminating of standard there.
Mobile originating from ownership PABX base station passes to PABX by BSC according to Subscriber Number, so the PABX Internal call can directly exchange and without any need for the CCF of MSC or through the connection of MSC.Like this, Internal call and PSTN calling are all only through the PABX base station, and be more more economical than prior art solutions.
Below, with the present invention will be described in more detail in conjunction with the accompanying drawings.In these accompanying drawings:
Fig. 1 shows a kind of wireless communication system of the present invention;
Fig. 2 is the block diagram of the base station controller of illustration expansion;
Fig. 3 sets up mobile terminating calling signaling figure for illustration; And
Fig. 4 sets up the signaling diagram of mobile originating for illustration.
In fact, if a WPABX wireless PABX or PBX are received a PABX system, the present invention is almost applicable to any mobile communication system so.
An example is European digital cellular mobile communication systems GSM (global system for mobile communications).The explanation in the GSM suggestion of the basic equipment of gsm system.More detailed explanation for gsm system can be referring to GSM suggestion and M.Mouly﹠amp; " the The GSMSystem for Mobile Communications " of M.Pautet, Palaiseau, France, 1992, ISBN:2-9507190-0-7.
GSM and improvement thereof, the digital communication system DCS1800 that is operated in 1800MHz is a main object of the present invention, but is not that the present invention just is confined to these radio systems.
Fig. 1 shows the basic composition of gsm system very briefly.Mobile services switching centre MSC handles being connected of Incoming and outbound call.It also carries out the peculiar function of some mobile communication except the similar function of exchange of carrying out some and Public Switched Telephone Network, for example customer location management and so on.Travelling carriage is received the MSC of switching center by base station system.Base station system comprises a base station controller BSC and several base station BTS.BSC is the A interface towards the interface of MSC, and is Abis interface towards BTS.These interfaces have all been made regulation in the GSM suggestion.
As user register, system comprises homing user position register HLR and calling party location register VLR.HLR longer-term storage user profile and relevant user are positioned at the information in which VLR district.Yet those visit the user's of this VLR area user profile the just temporary transient storage of calling party location register VLR.In addition, VLR is also storing user's more detailed positional information, promptly so-called band of position identifying information.
Fig. 1 also shows an office system 10 of realizing with WPABX wireless PABX.Office system 10 comprises the conventional fixed network PABX that its extension set wiring has been replaced by radio interface.Therefore, office system 10 comprises a base station PABX-BTS who sets up an internal zone under PABX control for office (for example building) at least.Cordless handset can freely move in this sub-district, utilizes common PABX function; For example carry out Internal call, to calling of public switched telephone network PSTN etc.
The trunk side of PABX is connected to the trunk line from the Local Exchange of PSTN or ISDN exchange (or communication exchange office of other types) in a usual manner.As previously described, the branch pusher side of PABX directly is connected to base station PABX-BTS in the prior art.According to the present invention, Fig. 1 shows the situation of PABX extension set side joint to the BSC of mobile radio communication PLMN.In BSC, be equipped with a special module IF for this reason.Under situation about using like this, thisly be called extended base station controller XBSC by base station controller proposed by the invention.Yet PABX-BTS is by Abis, and common BSC-BTS interface in the gsm system is connected to extended base station controller XBSC.Because PABX-BTS is the GSM base station of a standard, and the radio interface of the WPABX wireless PABX in office sub-district 10 is a GSM/DCS interface that meets suggestion fully, and therefore common GSM/DCS travelling carriage can be used as cordless handset 11 and uses in office sub-district 10.Yet the present invention does not forbid that the base station PABX-BTS of PABX system has a radio interface (for example DECT) different with mobile radio communication standard base station.This subscriber board that will require the PABX system must be a dual-mode device, so that can both work on two kinds of radio interface, this compares with this preferred embodiment, obviously is much poorer.
A interface between MSC and the extended base station controller XBSC can be still the GSM interface of a standard and need not do any change.Like this, adopted the present invention after, just the characteristic of GSM/DCS interface can be given the PABX of a standard, and what change need not arranged on the signaling interface of each standard.That unique needs change in the PLMN net is extended base station controller XBSC.In order to share with the capacity of common PLMN-BTC base station services XBSC for the PABX-BTS base station simultaneously.The long-time transmission between BSC and MSC that should avoid when therefore, carrying out this locality (inside) calling in PABX occurring connects.In office sub-district 10, still can obtain the standard feature of mobile radio communication, as authentication, encryption etc.
The user of mobile radio communication each all be assigned to one in mobile radio communication exclusive identification number, the IMSI in gsm system (international mobile subscriber identification number) for example.According to this preferred embodiment, to grant for one and use the user of office sub-district also to be assigned to a PABX Subscriber Number in addition, this PABX Subscriber Number for example is a PABX extension or other suitable signs.User's travelling carriage that is assigned to IMSI and PABX Subscriber Number both can use as a cordless handset in the office sub-district, also can use by the standard travelling carriage as a mobile radio communication outside the office sub-district.Having dual mode to transmit mobile terminating calls out.If the PSTN user of a caller has dialled a PABX Subscriber Number, PSTN just receives WPABX wireless PABX with calling, travelling carriage is given in calling is then handled by the interface IF between PABX and the XBSC.If this calling subscriber dialing a Subscriber Number (as Mobile Subscriber International ISDN Number) of in mobile radio communication, distributing to the user, PSTN just directly receives calling the gateway MSC of mobile radio communication.The calling that MS in the office sub-district initiates is received PABX by XBSC.Like this, the Internal call of PABX can directly exchange, and connects without any need for the MSC CCF or by MSC.
To describe various call route selecting processes below in detail.Yet, at first in conjunction with Fig. 2 to the expansion XBSC particularly structure and the operation principle of its interface module IF describe.
This block diagram of Fig. 2 shows the exemplary embodiments of base station controller XBSC.Yet, should be appreciated that the present invention never is limited to this, but multiple implementation is arranged, specifically depend on type and the characteristic of employed PABX.Put it briefly, need realize interface module IF, make the PABX of a standard to be connected and the signaling and the user that need not change this PABX connects situation with the XBSC of an expansion according to the characteristic of PABX.In some cases, also can be adjusted accordingly PABX, make it be particularly suitable for receiving on the base station controller with regard to its signaling interface and extension set situation.Yet the characteristics of all these changes are, it all is to receive XBSC that the signaling relevant with PABX user side (being extension set) is connected with voice, rather than resemble and adopt the base station of directly receiving PABX the prior art system.
Realized that interface module IF shown in Figure 2 just can receive this interface module IF with each extension line of the simulation PABX of a standard.Suppose that PABX has several roads extension line.In this case, interface module IF has N line module, line module of every road PABX extension line.Each line module comprises a D/A and A/D converter 21, code converter 22, bell signal detection device 23, a DTMF generator 30 and an OFF/ON-Hook switch 24.D/A converter 21 will be transformed into digital signal from the analog voice signal that a PABX extension set receives, by sending to mobile radio communication behind the code converter 22 usefulness mobile communication system voice coding methods coding.Equally, the encoding speech signal that receives from mobile radio communication becomes analog voice signal, the PABX extension set of feeding after code converter 22 decodings, 21 conversion of D/A converter.Bell signal detection device 23 is used for detecting the ring back tone of being issued relevant extension set by PABX under the incoming call situation.After detecting ring back tone, detector 23 just produces a signal DET as output.Switch 24, accept control signal Hook control, be used for the local loop (similar in plain old telephone user pick up earphone (off-hook OFF-Hook) answering call or call out) of closed PABX extension set or disconnect user loop (similar in plain old telephone user earphone is put into (on-hook ON Hook) terminated call on the hook switch).Dual Tone Multifrequency generator 30 is used for producing the voice-frequency dialing numeral that is sent to the PABX of radio extension by the extension set of PABX, situation with dial similar with plain old telephone at extension set.DTMF generator 30 suspension control signal DIAL control, and control signal DIAL to be GSM type according to the travelling carriage dial signaling produce.
Interface module IF comprises that also one is public controllers 25 for all line modules.Controller 25 has some to be used for importing ring back tone detector 23
1-23
NThe detection signal DET that produces
NInput and some to switch 24
1-24
NOutput control signal Hook
1-Hook
NWith to DTMF generator 30
1-30
NOutput control signal DIAL
1-DIAL
NOutput.Controller 25 also has a signaling link that is connected with the control unit 28 of BSC.The inner exchanging machine 29 of control unit 28 control BSC is handled all the calling control of distributing to this BSC and signaling tasks.
In the XBSC of this expansion according to the invention, interface module IF also has been equipped with a signaling interface 28, is used for setting up a signaling link between BSC and calling party location register VLR.In this preferred embodiment of the present invention, the signaling interface of stipulating between above-mentioned this interface and MSC in gsm system and the VLR (B interface) is identical.The standard of B interface is listed in the 2.4.3 joint of GSM suggestion 090, and used signaling is designated as the MAP-B signaling in this interface.For the present invention, the significant data base querying that just has certain VLR-BSC signaling link to can be used for relating to the dissimilar call setups such as encryption and authentication also may be used for the position and upgrade.For this reason, control unit 28 uses the MAP-B signaling interface.
In addition, the control unit 28 of XBSC has the inlet of the PABX/IMSI database 26 in the interface module of entering.There is the identification number IMSI that grants the mobile subscriber who uses office sub-district 10 and PABX in the database 26.In addition, database 26 gives the information of corresponding relation between each IMSI and the corresponding PABX Subscriber Number (being exactly PABX extension set entity in this case).Database 26 is also used by the controller 25 of interface module IF itself, and this will be illustrated in the back.
The switch of base station controller BSC can be any MSC digital switch, by its port realization BSC and the connection between the MSC, the connection between the connection between the connection between BSC and the PABX-BTS, BSC and the ordinary base station just, BSC and the code converter 22.Under the control of control unit 28, switch 29 exchanges mutually to these connections, makes calling to transmit according to the standard procedure and the process of the present invention of mobile radio communication, and this will be illustrated below.
Below, will illustrate that in more detail mobile terminating is called out and the situation of setting up of mobile originating in conjunction with signaling diagram shown in Fig. 1 and 2 illustrated embodiment and Fig. 3 and 4.
Mobile terminating is called out
Should be pointed out that this signaling diagram of Fig. 3 at large do not list all signalings relevant with call setup.Fig. 3 just is being the information exchange figure that has provided relevant call setup on the explanation degree essential to the invention.Therefore, in the call establishment of reality, also have the signaling that does not go out as yet among some figure, but this is not to be substantial for the present invention.
Suppose that the calling of issuing the extension set 1 of PABX is another extension set from PSTN or PABX.Therefore, PABX must notify BSC with incoming call in some way, so that set up the calling to the mobile station MS of above-mentioned extension set.Activating this call setup is to use by PABX to represent to the message (SET-UP) of setting up that BSC sends on this signaling diagram of Fig. 3.In some execution mode, this can be the message of a reality.In this embodiment of the present invention, because PABX also do not have change according to the present invention, and each extension line is directly received interface module IF, thus PABX with a similar mode of common extension set is set up calling.That is to say that PABX produces a bell signal of issuing extension set 1.The ring back tone detector 23 of interface module IF
1Detect behind this bell signal by making signal DET
1Effectively received bell signal to controller 25 expressions.Signal DET
1Effective status represent to have a incoming call to controller to extension set 1.Controller 25 retrieves from database 26 and the PABX extension set 1 corresponding IMSI identification number of discerning the mobile subscriber of extension set 1.Then, controller 25 sends a call setup order that contains the IMSI that retrieves to control unit 28.Like this, controller 25 just sends a beep-page message (PAGING-COMMAND) by switch 28 to the base station of office sub-district PABX-BTS, is transmitted to mobile station MS in the office sub-district by PABX-BTS.By PABX-BTS, travelling carriage sends to BSC with a response message (PAGING RESPONSE).
After receiving the response that travelling carriage sends, BSC sends an authentication request (MAP-PROCESS-ACCESS-REQUST (MAP-AUTHENTICATION)) to VLR, and VLR responds with an authentication acknowledge message (MAP-PROCESS-REQU-ACK).Usually the information of transmitting between MSC and the VLR in the information that these two message are transmitted and the gsm system is identical.In this preferred embodiment of the present invention, controller 28 is carried out these signalings by the MAP-B signaling interface.
Receive VLR and reply, the control unit 28 of BSC is pressed the GSM suggestion and is sent an authentication request (AUTH-REQUEST) to MS, and MS presses the GSM suggestion and responds with an authentication response message (AUTH-RESPONSE).If authentication success, mobile station MS allow to network, encryption mode is set.Therefore, BSC sends an encryption mode request (MAP-PROC-ACC-REQ (CIPH-MODE)) to VLR, and VLR responds with an encryption mode acknowledge message (MAP-PROC-ACC-REQ-ACK).Usually the information that transmits between MSC and the VLR in these two information that message transmitted and the gsm system is identical.Then, BSC puts the encryption mode that encryption mode message (CIPH-MODE-CMD) transmits MS with one, and MS finishes message (CIPH-MODE-CCM) with an encryption mode and confirmed.
After encryption mode is set, will one distribute to this calling through setting up the connection between switch 29 and the MS on the Traffic Channel of PABX-BTC.This represents with a SET-UP message.MS is with jingle bell, if user answer, response message will be sent to control unit 28, and control unit 28 is arranged to the OFF-Hook state with regard to instruction control unit 25 with switch 241.This replys the local loop of closed PABX extension set 1 and PABX sees this as user at this extension set.This represents with a CALL-CONF on Fig. 3.The information that relevant user B replys also can send with the message of other types certainly.Like this, just having set up voice at the point of MS and PABX is connected.
The interior PABX in zone that BSC only is based upon office sub-district 10 calls out.In last example, do not carry out the callee in advance whether in the inspection of office sub-district 10.Yet, can before starting paging, carry out position enquiring to VLR earlier for fear of bootlessly sending call signaling.
Mobile originating
The situation of setting up below with reference to signaling diagram explanation shown in Figure 4 mobile originating in meeting this system of this explanation.This signaling diagram of Fig. 4 does not illustrate whole signalings of call establishment fully yet.Fig. 4 only shows substantive signaling of the present invention can be described.In fact, in the signaling contact, can also comprise some other message that some are unimportant for the present invention.
Below the user of a cordless handset MS in the hypothesis office sub-district 10 wishes to carry out call.The typical case of mobile radio communication is, only the user dialled the callee number, pushed " transmission " button of a special use after, just begin the signaling contact of call setup.After the user had pushed " transmission " button, MS was given to BST to the PABX-BTS of office sub-district 10 channel request message (CHANNEL REQUEST) by PABX-BTS.BST responds by sending an immediate assignment message (IMMEDIATE ASSIGNMENT).These two message all are the message that meets the GSM suggestion.The next message that sends from MS is a business request information (CM SERVICE REQUEST) that comprises the affairs reason.This message also meets the GSM suggestion.Owing to receive connection request by the PABX-BTS in the office sub-district 10, so control unit 28 checks in database 26 whether this IMSI belongs to PABX user.If above-mentioned IMSI not in database 26, then carries out call setup according to the standard procedure of mobile radio communication.
If this IMSI belongs to PABX user, control unit 28 just activates call establishment of the present invention, and this calling will be received PABX.At first, BSC carries out authentication and encryption mode is set to the user, similar between BSC and the VLR and among the situation of the contact of the signaling between BSC and the MC and Fig. 3 shown in corresponding.After encryption mode set, travelling carriage sent a call setup message (SET-UP) to BSC, and this message also contains the Subscriber Number B that dials to some extent.When inquiring about in front with being connected of database 26 in, control unit 28 has obtained the information that conforms to the user IMSI that relates to about which PABX extension set.Suppose that this IMSI conforms to PABX extension set N.What receive that MS sends sets up message (SET-UP), and the switch 24N of control unit 28 instruction control units 25 extension set N is set to OFF-Hook.Like this, the local loop closure of extension set N.PABX responds to this, produces a dialing tone of issuing this extension set, waits for dialing.Control unit 28 is now issued controller 25 with the number of user B.Controller 25 order DTMF generator 30N produce the DTMF numeral according to Subscriber Number B.The information of user B is sent to signaling usefulness B number message (B-NUMBER) expression in Fig. 4 of PABX.Receive the number of user B, PABX begins to carry out call setup, as receiving the number of transfering to from the extension set of a standard.
With dialing simultaneously, or front and back, BSC one distribute to this calling through setting up the connection between switch 29 and the MS on the Traffic Channel of PABX-BTS.This sets up message (SET-UP) expression with one in Fig. 4.The number one of user B is sent to PABX, and control unit 28 is received described Traffic Channel with regard to command switch 29 with code converter 22N.Therefore, will connect between MS and PABX, this represents with connecting arrow (CONNECTION) in Fig. 4.
Call out and discharge
When a travelling carriage request call discharged, BSC sent a response to travelling carriage, and it is changed into hook state (ON-Hook).Issue PABX during the information of same of relevant MS hook state.In this preferred embodiment of the present invention, this is changed to hook state by control unit 28 instruction control units 25 with relevant PABX extension set switch 24 and realizes.As a result, this local loop disconnects, thereby PABX thinks to connect and cuts off.After this, just discharged in the BSC for this calling resources reserved and be connected.
When the other side determined terminated call, PABX produced a busy tone of giving extension set, goes to mobile station MS.Usually, this will make MS user's on-hook, that is to say that having started the above-mentioned calling of being initiated by MS side discharges.In addition, interface module IF can be equipped with a busy tone detector, in case it detects busy tone, just makes control unit 28 send a call release message that meets the GSM suggestion to travelling carriage.Under latter event, the hook state of MS is notified PABX by the mode of switch 24 disconnect user loops.
To the calling of the MSISDN of travelling carriage in normal way (promptly without PABX) enter mobile radio communication, and relevant therewith call establishment is a standard procedure, no matter whether MS is in the office sub-district 10.
In order to save the resource of radio net, can limit the handover of turnover office sub-district as far as possible.Under such a case, but even bear call accepted release and also do not carry out handover.
In addition, get permission to use the travelling carriage of office sub-district 11 can be classified as a specific access class.If this is the case, that just can forbid that every other access class uses this office sub-district.This is to prevent that other travelling carriages from may surreptitiously look the method for office sub-district.For example, in a GSM travelling carriage, the information of user's access category can be existed on his SIM (subscriber identification module) card, this means that such classification does not need to change the software of travelling carriage.
Below the invention has been described in conjunction with specific embodiments, but should be appreciated that, these embodiment are exemplary, in addition all changes and modification and do not deviate from scope of the present invention and the essence that claims propose.
Claims (12)
1. communication system, by a cellular mobile communications networks that comprises a mobile services switching centre (MSC), a base station controller (XBSC), several base stations (BTS), and the communication system with private exchange system (PABX) composition of at least one base station (PABX-BTS), it is characterized in that:
The user side of PABX system (PABX) is received base station controller (XBSC), and trunk side is received another communication network (PSTN);
Base station controller (XBSC) is received in PABX base station (PABX-BTS); And
Base station controller (XBSC) is configured to, and the customer call that will start from the PABX base station is received the PABX system, and will receive the PABX base station by the calling that the PABX system enters.
2. the system as being proposed in claim 1 is characterized in that base station controller has a signaling link (28) of receiving a customer data base (VLR) of mobile radio communication, so that for example the user is carried out authentication.
3. the system as being proposed in claim 1 or 2 is characterized in that the extension line of PABX system (PABX) is all received base station controller (XBSC).
4. one kind as the system that in claim 1,2 or 3, proposed, it is characterized in that base station controller (XBSC) have relevant in mobile radio communication which identification number belong to the user's who gets permission to obtain the PABX system service information (26).
5. the system as being proposed in claim 4 is characterized in that base station controller (XBSC) has at the identification number of mobile radio communication and the corresponding informance (26) between corresponding PABX Subscriber Number or the PABX extension set.
6. one kind as the system that in claim 1,2,3,4 or 5, proposed, it is characterized in that base station controller has a signaling unit, its effect is: send signaling in the PABX system orientation in the desired mode of PABX system, and send signaling in the mobile radio communication direction in the desired mode of mobile radio communication.
7. the system as being proposed in claim 4 is characterized in that carrying out the route arrangement for the terminating call terminating call to mobile communication network users as standard in mobile radio communication to the PABX mobile subscriber number.
8. the system as being proposed in claim 1 it is characterized in that PABX base station and mobile radio communication have different radio interface, and the PABX subscriber equipment is at these two kinds of dual-mode equipments that radio interface can both be worked.
9. method of in a communication system, setting up an outbound call, this communication system comprises that by one the cellular mobile communications networks of a mobile services switching centre, a base station controller and several base stations and user's exchange (PABX) system that has at least one base station form, and described method comprises the following steps:
Send a connection request through the PABX base station to base station controller from the user;
Start call setup, the feature of described method is that described method also comprises the following steps:
Transmit leg at base station controller check connection request is a PABX user or the mobile communication network users of a standard;
To receive that user side is connected with base station controller and PABX system that trunk side is connected with another communication network from the PABX user's of base station controller calling; And
If the user is not a PABX user, mobile services switching centre is received in calling.
10. the method as being proposed in claim 9 is characterized in that the step that will receive the PABX system from the calling of base station controller comprises the following steps:
In the desired mode of PABX system, for example, off-hook information is sent to the PABX system, so that the extension line of excited users equipment by the local loop of closed extension line; And
In the desired mode of PABX system,, user's dialing information is sent to the PABX system for example by sending the dtmf dialing numeral to the extension line that activates.
11. method of in a communication system, setting up a terminating call, this communication system comprises that by one the cellular mobile communications networks of a mobile services switching centre, a base station controller and several base stations and user's exchange (PABX) system that has at least one base station form, wherein:
Receive a terminating call to PABX user in the PABX system, the feature of described method is that described method comprises the following steps:
By the little switching system of special use with the user side of PABX system and base station controller that described PABX base station is connected in start call setup;
Send a beep-page message through the PABX base station to described PABX user from base station controller;
The acknowledge message that reception is sent from PABX user;
Between base station controller and PABX user, set up the connection that meets mobile radio communication; And
Between PABX user and described PABX system, set up and be connected through the voice of base station controller with the PABX base station.
12. the method as being proposed in claim 11 is characterized in that base station controller is that each PABX user is maintained in the identification number of mobile radio communication and the corresponding informance between corresponding PABX Subscriber Number or the PABX extension set.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI953012A FI101338B (en) | 1995-06-16 | 1995-06-16 | Telecommunication system and call set-up methods |
| FI953012 | 1995-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1158207A true CN1158207A (en) | 1997-08-27 |
Family
ID=8543626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96190745 Pending CN1158207A (en) | 1995-06-16 | 1996-06-14 | Communication system and call establishment methods |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0776587A1 (en) |
| JP (1) | JPH10504165A (en) |
| CN (1) | CN1158207A (en) |
| AU (1) | AU710178B2 (en) |
| CA (1) | CA2197642A1 (en) |
| FI (1) | FI101338B (en) |
| WO (1) | WO1997000588A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101325795B (en) * | 2007-06-15 | 2011-09-21 | 中兴通讯股份有限公司 | Wireless communication device for local voice exchange |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100464337B1 (en) * | 1997-07-11 | 2006-02-28 | 삼성전자주식회사 | Multiple Calling Method for Wired and Wireless Terminal Equipment in Switching System |
| US6073029A (en) * | 1997-07-25 | 2000-06-06 | U S West, Inc. | Method and system for providing wireless communications to a subscriber of a private wireline network |
| AT407813B (en) * | 1997-12-18 | 2001-06-25 | Ericsson Austria Ag | TELEPHONE SYSTEM |
| DE19815430B4 (en) * | 1998-04-07 | 2005-12-15 | T-Mobile Deutschland Gmbh | A method for establishing a connection from a mobile radio network to a destination number of a private communication network |
| US6263211B1 (en) | 1998-09-24 | 2001-07-17 | Telefonaktiebolaget L M Ericsson (Publ) | System and method of automatically conveying a Wireless Office System (WOS) frequency set to mobile stations |
| KR100418151B1 (en) * | 2001-04-16 | 2004-02-11 | (주) 콘텔라 | Private Telecommunication Network System |
| KR100454945B1 (en) * | 2001-11-28 | 2004-11-06 | 삼성전자주식회사 | Public land mobile network and private mobile network integration service network and system therefor |
| KR100469707B1 (en) * | 2001-12-27 | 2005-02-02 | 삼성전자주식회사 | Method for using the public e1 link efficiently in wireless pabx system |
| DE10329960A1 (en) * | 2003-07-03 | 2005-03-17 | Deutsche Telekom Ag | Switching control system is used to provide a connection between a fixed communication network and a mobile telephone network |
| US20050255840A1 (en) * | 2004-05-13 | 2005-11-17 | Markham Thomas R | Authenticating wireless phone system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE465992B (en) * | 1990-04-10 | 1991-11-25 | Ericsson Telefon Ab L M | MOBILE PHONE SYSTEM PROVIDED TO USE BY SUBSCRIBERS INDOOR AND OUTDOOR |
| GB2253323B (en) * | 1991-03-01 | 1995-05-17 | Racal Vodafone Ltd | Telecommunications networks and methods |
| DE4128811A1 (en) * | 1991-08-30 | 1993-03-04 | Standard Elektrik Lorenz Ag | EXTENSION SYSTEM |
| JPH0815267B2 (en) * | 1991-09-27 | 1996-02-14 | 松下電器産業株式会社 | Wireless phone |
| FI94698C (en) * | 1993-09-28 | 1995-10-10 | Nokia Telecommunications Oy | The communications 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 |
| SE516006C2 (en) * | 1995-01-10 | 2001-11-05 | Ericsson Telefon Ab L M | Communication system for a company / organization |
-
1995
- 1995-06-16 FI FI953012A patent/FI101338B/en active
-
1996
- 1996-06-14 EP EP96918711A patent/EP0776587A1/en not_active Withdrawn
- 1996-06-14 CA CA002197642A patent/CA2197642A1/en not_active Abandoned
- 1996-06-14 JP JP9502674A patent/JPH10504165A/en active Pending
- 1996-06-14 AU AU61282/96A patent/AU710178B2/en not_active Ceased
- 1996-06-14 CN CN 96190745 patent/CN1158207A/en active Pending
- 1996-06-14 WO PCT/FI1996/000354 patent/WO1997000588A1/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101325795B (en) * | 2007-06-15 | 2011-09-21 | 中兴通讯股份有限公司 | Wireless communication device for local voice exchange |
Also Published As
| Publication number | Publication date |
|---|---|
| FI101338B1 (en) | 1998-05-29 |
| FI953012A0 (en) | 1995-06-16 |
| FI101338B (en) | 1998-05-29 |
| AU6128296A (en) | 1997-01-15 |
| FI953012A (en) | 1996-12-17 |
| CA2197642A1 (en) | 1997-01-03 |
| AU710178B2 (en) | 1999-09-16 |
| JPH10504165A (en) | 1998-04-14 |
| WO1997000588A1 (en) | 1997-01-03 |
| EP0776587A1 (en) | 1997-06-04 |
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