CN100373957C - A wireless local telephone system and method for realizing roaming - Google Patents
A wireless local telephone system and method for realizing roaming Download PDFInfo
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- CN100373957C CN100373957C CNB031154360A CN03115436A CN100373957C CN 100373957 C CN100373957 C CN 100373957C CN B031154360 A CNB031154360 A CN B031154360A CN 03115436 A CN03115436 A CN 03115436A CN 100373957 C CN100373957 C CN 100373957C
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Abstract
The present invention provides a new wireless local telephone system which comprises a local area communication system and at least one routing area communication system, wherein the local area communication system and the routing area communication system comprise a base station transceiver, a base station controller, a local exchanger and a roaming manager. The base station transceiver, the base station controller and the local exchanger form a common wireless access system, and the roaming manager is connected with the base station controller and controls the base station controller to complete a calling jump instruction. The roaming manager in the local area communication system and the roaming manager in the routing area communication system are connected through an Ethernet. The present invention avoids the problem that a telephone channel passage is established between base stations, reduces the requisite equipment for establishing the telephone channel passage and reaches the purpose of lowering the economic cost of the system. The present invention also fully uses a calling jump function which an original system has, and the function is very stable, so the system of the present invention is arranged on a stable basis to enhance the stability of the system.
Description
Technical field
The present invention relates to mobile communcations system, specifically, relate to a kind of new wireless local telephone system and loaming method thereof.
Background technology
In the wireless local telephone system of field of mobile communication, particularly in the wireless local telephone system based on local switch, travelling carriage can not be roamed between base station system at present.But,, just need finish covering jointly by a plurality of base station systems to a city if the off-capacity of a base station system is when covering a city along with the continuous expansion of wireless local telephone system capacity.At this moment, when a travelling carriage is mobile in this city scope, will run into the problem of between a plurality of base station systems, roaming.
The roaming of travelling carriage in GSM, CDMA mobile communcations system at present generally all is that the positional information by mobile switching centre's management travelling carriage of exchange side realizes, but in wireless local telephone system, its exchange side is a local switch, and local switch does not have the function of location of mobile station management, therefore up to the present, can't realize the roaming of travelling carriage between base station system based on the wireless local telephone system of local switch.A problem that has become present urgent need to solve as the roaming of simple and effective way supports mobile between a plurality of base station systems how.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of new wireless local telephone system and realizes the method for roaming, can't realize the problem roamed between the base station system to solve the present wireless local telephone system based on local switch.
Wireless local telephone system of the present invention, comprise an ownership place communication system and at least one visit ground communication system, described ownership place communication system and described visit ground communication system include base station transceiver, base station controller, local switch and roaming management device; Described base station transceiver, base station controller, local switch constitute a common wireless access system, and described roaming management device links to each other with described base station controller, control described base station controller and finish the calling transfer instruction; Link to each other by Ethernet between the roaming management device of the roaming management device in the described ownership place communication system and described visit ground communication system.
Wherein, roaming management device control base station controller is finished the calling transfer instruction and is specially:
When roam registration, visit ground base station controller is with the roaming management device on roam registration request notice visit ground; The roaming management device on visit ground distributes the roaming temporary number for this travelling carriage and the roam registration request is notified the ownership place roaming management device of this travelling carriage; The ownership place roaming management device notice ownership place base station controller of travelling carriage is set to the calling transfer of the above-mentioned travelling carriage roaming temporary number of visit ground base station system by the switch of ownership place, and keeps the positional information of this travelling carriage; Ownership place roaming management device is finished authentication responses to visit ground roaming management device; Visit ground roaming management device keeps the positional information of this travelling carriage;
When travelling carriage during by roaming paging, the local switch of ownership place is transferred to this paging automatically according to the calling transfer number that is provided with on the local switch on visit ground, and visit ground local switch is issued to visit ground base station controller with this paging request; Visit ground base station controller carries out authentication to visiting ground roaming management device request to roaming mobile stations; Local switch by visit ground is finished paging according to normal paging flow process.
Wireless local telephone system of the present invention is realized the method for roaming, may further comprise the steps:
When one, travelling carriage carries out roam registration, may further comprise the steps:
1.1) visit ground base station controller is the roaming management device on roam registration request notice visit ground;
1.2) the roaming management device on visit ground distributes roaming temporary number for this travelling carriage, and send roam registration to ownership place roaming management device and notify;
1.3) the ownership place roaming management device of travelling carriage notice ownership place base station controller is set to the calling transfer of the above-mentioned travelling carriage roaming temporary number of visit ground base station system by the switch of ownership place, and keeps the positional information of this travelling carriage;
1.4) ownership place roaming management device finishes authentication responses to visit ground roaming management device;
1.5) visit ground roaming management device keeps the positional information of this travelling carriage;
Two, when travelling carriage during, may further comprise the steps by roaming paging:
2.1) local switch of ownership place transfers to this paging automatically according to the calling transfer number that is provided with on the local switch on visit ground,
2.2) visit ground local switch is issued to visit ground base station controller with this paging request;
2.3) visit ground base station controller to visit ground the request of roaming management device roaming mobile stations is carried out authentication;
2.4) finish paging by the local switch on visit ground according to normal paging flow process.
The present invention realizes that the method for roaming comprises that also the roaming of travelling carriage works the process of exhaling, and specifically may further comprise the steps:
One, travelling carriage initiates to have roamed to call for to ask to visit ground base station controller;
Two, visit ground base station controller carries out authentication to visiting ground roaming management device request to this travelling carriage; After authentication was passed through, visit ground base station controller was finished the subsequent voice calls process.
System of the present invention and loaming method greatly reduce the complexity of roaming scheme, have shortened the construction cycle, have saved development cost.Because the present invention has avoided setting up the problem of speech path channel between the base station, therefore reduced and set up the speech path channel devices needed, reach the purpose that reduces the systematic economy cost.In addition, the present invention has made full use of the call forwarding function that original system has, and this function is highly stable, makes system of the present invention be based upon on the stable basis, thereby has improved the stability of system.
Description of drawings
Fig. 1 is the structural representation of wireless local telephone system of the present invention;
Fig. 2 is the schematic diagram of travelling carriage roam registration process of the present invention;
Fig. 3 is that roamer of the present invention is as working the calling procedure schematic diagram of exhaling;
Fig. 4 is the calling procedure schematic diagram of roamer of the present invention as paging (exhaling eventually).
Embodiment
Below with reference to the accompanying drawings and embodiment, wireless local telephone system that the present invention is based on local switch and the method that realizes roaming thereof are described in detail.
Wireless local telephone system of the present invention and roaming implementation method thereof are a kind of simple and effective roaming solutions.The present invention is that the mode by calling transfer realizes the roaming function of travelling carriage between base station system, by the calling transfer of travelling carriage is set, the roaming paging of travelling carriage is finished automatically by local switch, to base station system is transparent processing, and travelling carriage has been roamed only to exhale to need to increase can finish according to normal flow the simple mobile authentication of travelling carriage and exhaled.
Fig. 1 is an embodiment of wireless local telephone system of the present invention, and in this embodiment, the ownership place communication system comprises base station transceiver BTS1, base station controller BSC 1, local switch 1 and ownership place roaming management device; Visit ground communication system comprises base station transceiver BTS2, base station controller BSC 2, local switch 2 and visit ground roaming management device; Local switch 1 all is connected to a bigger local switch with local switch 2; Travelling carriage is arranged in visit ground communication system.In the embodiment shown in fig. 1, the realization of roaming mainly contains two parts: the roaming management device and the base station foreground proxy module (not shown) of management location of mobile station information; The roaming management device is in charge of the mobile message of travelling carriage, couples together by Ethernet between ownership place roaming management device and the visit ground roaming management device, makes each roaming management device communication mutually; The base station foreground proxy module is responsible for the interface with the foreground business process, the mobile message of travelling carriage is provided to the foreground business process, to be given to the roaming management device from travelling carriage registration message, call message and the beep-page message of business process, and mobile message, calling transfer that the roaming management device is sent here are provided with request are transmitted to business process.
The present invention roams the call forwarding function that implementation method has made full use of local switch.When travelling carriage carried out roam registration, base station system 2 notice ownership place base station systems 1 in visit ground were provided with calling transfer on the local switch 1 of ownership place, and the destination number of transfer belongs to the number range of the local switch 2 on visit ground.When this travelling carriage during by roaming paging, the local switch 1 of ownership place is transferred to this paging on the local switch 2 on visit ground automatically, finishes paging by the local switch 2 on visit ground according to normal paging flow process then.In this process, the base station does not participate in the realization of roaming paging, and roaming paging is to finish a ring complicated, the most difficult in the roaming function in base station side, has realized the transparent processing of base station system to the travelling carriage roaming by the present invention.
The business process of being mentioned is meant the foreground process of finishing mobile station calling, paging flow process in the wireless local telephone system in the present embodiment.
In the schematic diagram of travelling carriage roam registration process shown in Figure 2, this process relates to visit ground roaming management device, visit ground base station controller BSC2, ownership place local switch LEI, ownership place base station controller BSC 1 and the ownership place roaming management device in the wireless local telephone system.Its concrete implementation procedure is:
The a roaming mobile stations is initiated the roam registration request to visit ground base station controller BSC2;
B visit ground base station controller BSC2 initiates the registration authentication to visit ground roaming management device; Visit ground roaming management device distributes the roaming temporary number for this roaming mobile stations, and sends the roam registration notice to ownership place roaming management device;
C ownership place roaming management device keeps the travelling carriage roaming information, and the temporary number of roaming mobile stations is sent to ownership place base station controller BSC 1; After ownership place base station controller BSC 1 is received temporary number, by ownership place local switch LE1 this roaming mobile stations calling is set and transfers on the roaming temporary number;
D ownership place roaming management device sends roam registration to visit ground roaming management device and replys; Visit ground roaming management device sends the roam registration authentication responses to visit ground base station controller BSC2 again; Base station controller BSC2 in visit ground sends roam registration to roaming mobile stations and replys at last.
Can finish the roam registration process of travelling carriage by above step.
Fig. 3 is that travelling carriage is as the call flow schematic diagram of exhaling eventually, i.e. the roaming paging process of travelling carriage.This process relates to visit ground roaming management device, visit ground base station controller BSC2, visit ground local switch LE2 and the ownership place local switch LE1 in the wireless local telephone system.Concrete implementation procedure is:
After a ownership place local switch LE1 receives paging request to roaming mobile stations, this paging request is converted to paging request to the temporary number of roaming mobile stations, sends to visit ground local switch LE2;
After b visit ground local switch LE2 received paging request to the temporary number of roaming mobile stations, base station controller BSC2 initiated the paging request to visit ground;
C visit ground base station controller BSC2 obtains the raw information of roaming mobile stations after by visit ground roaming management device authentication, finishes remaining paging flow process.
Fig. 4 is that the roaming mobile stations conduct works a calling procedure schematic diagram of exhaling, and this process relates to visit ground roaming management device, the visit ground base station controller BSC2 of wireless local telephone system and visits ground local switch LE2.Concrete implementation procedure is:
The a roaming mobile stations initiates to have roamed to call for to ask to visit ground base station controller BSC2;
B visit ground base station controller BSC2 initiates authentication request to visit ground roaming management device; Authentication is finished follow-up call flow by the back by visit ground base station controller BSC2.
In the present invention, the temporary number of calling transfer is by visit ground base station controller BSC2 dynamic assignment.When setting up system, reserve a segment number sign indicating number in the local switch side and use for calling transfer, 1000 roaming number resources are reserved at about three general-purpose families.Then by the message registration of roaming management device reservation roaming mobile stations, submit to the charging center for the processing of chargeing according to the call format of charging center; Also can distribute a fixing number for travelling carriage on visit ground, a plurality of numbers merging with this travelling carriage during charging are ultimate costs of this travelling carriage.
Claims (6)
1. wireless local telephone system, comprise an ownership place communication system and at least one visit ground communication system, described ownership place communication system and described visit ground communication system include base station transceiver, base station controller, local switch and roaming management device;
Wherein said base station transceiver, base station controller, local switch constitute a common wireless access system, and described roaming management device links to each other with described base station controller, control described base station controller and finish the calling transfer instruction;
Link to each other by Ethernet between the roaming management device of the roaming management device in the described ownership place communication system and described visit ground communication system;
Wherein, described roaming management device is controlled described base station controller and is finished calling transfer instruction and be specially:
When roam registration, the roaming management device on described visit ground notified described roam registration request by described visit ground base station controller; The roaming management device on described visit ground distributes the roaming temporary number for this travelling carriage and described roam registration request is notified the ownership place roaming management device of this travelling carriage; The ownership place roaming management device of described travelling carriage notifies described ownership place base station controller to be set to the calling transfer of the above-mentioned travelling carriage roaming temporary number of visit ground base station system by the switch of described ownership place, and keeps the positional information of this travelling carriage; Described ownership place roaming management device is finished authentication responses to described visit ground roaming management device; Described visit ground roaming management device keeps the positional information of this travelling carriage;
When travelling carriage during by roaming paging, the local switch of described ownership place is transferred to this paging automatically according to the calling transfer number that is provided with on the local switch on described visit ground, and described visit ground local switch is issued to described visit ground base station controller with this paging request; Described visit ground base station controller carries out authentication to the roaming management device request of described visit ground to described roaming mobile stations; Local switch by described visit ground is finished paging according to normal paging flow process.
2. a wireless local telephone system is realized the method for roaming, may further comprise the steps:
When one, travelling carriage carries out roam registration, may further comprise the steps:
1.1) visit ground base station controller is the roaming management device on described roam registration request notice visit ground;
1.2) the roaming management device on described visit ground distributes roaming temporary number for this travelling carriage, and send roam registration to ownership place roaming management device and notify;
1.3) the ownership place roaming management device of described travelling carriage notice ownership place base station controller is set to the calling transfer of the above-mentioned travelling carriage roaming temporary number of visit ground base station system by the switch of ownership place, and keeps the positional information of this travelling carriage;
1.4) described ownership place roaming management device finishes authentication responses to visit ground roaming management device;
1.5) described visit ground roaming management device keeps the positional information of this travelling carriage;
Two, when travelling carriage during, specifically comprise by roaming paging:
2.1) local switch of ownership place transfers to this paging automatically according to the calling transfer number that is provided with on the local switch on visit ground,
2.2) described visit ground local switch is issued to visit ground base station controller with this paging request;
2.3) described visit ground base station controller to visit ground the request of roaming management device roaming mobile stations is carried out authentication;
2.4) finish paging by the local switch on described visit ground according to normal paging flow process.
3. wireless local telephone system according to claim 2 is realized the method for roaming, it is characterized in that described step 1.1) comprise before: visit ground base station controller is received the roam registration request from travelling carriage.
4. wireless local telephone system according to claim 2 is realized the method for roaming, it is characterized in that described step 1.4) specifically comprise: 3.1) ownership place roaming management device sends to the ownership place base station controller with the temporary number of roaming mobile stations; 3.2) the ownership place base station controller is provided with this travelling carriage by the ownership place local switch and calls out and transfer on the roaming temporary number.
5. wireless local telephone system according to claim 2 is realized the method for roaming, it is characterized in that described step 2.1) comprise before:
The ownership place local switch is received the paging request of travelling carriage;
6. wireless local telephone system according to claim 2 is realized the method for roaming, it is characterized in that, also comprises
Travelling carriage has been roamed the process of exhaling, and concrete steps are:
6.1 travelling carriage initiates to have roamed to call for to ask to visit ground base station controller;
6.2 visit ground base station controller carries out authentication to visiting ground roaming management device request to this travelling carriage;
6.3 after authentication was passed through, visit ground base station controller was finished the subsequent voice calls process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031154360A CN100373957C (en) | 2003-02-11 | 2003-02-11 | A wireless local telephone system and method for realizing roaming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031154360A CN100373957C (en) | 2003-02-11 | 2003-02-11 | A wireless local telephone system and method for realizing roaming |
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| Publication Number | Publication Date |
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| CN1522078A CN1522078A (en) | 2004-08-18 |
| CN100373957C true CN100373957C (en) | 2008-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031154360A Expired - Fee Related CN100373957C (en) | 2003-02-11 | 2003-02-11 | A wireless local telephone system and method for realizing roaming |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1311674C (en) * | 2004-09-30 | 2007-04-18 | 西安西电捷通无线网络通信有限公司 | Method for realizing moving node directly interview each other in same extending network domain |
| CN101159905B (en) * | 2007-11-07 | 2010-04-21 | 华为技术有限公司 | Local exchange method, core network equipment and network system of implementing in base station controller |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998012886A1 (en) * | 1996-09-19 | 1998-03-26 | Nokia Telecommunications Oy | Location management of a wireless terminal |
| JPH10304428A (en) * | 1997-04-22 | 1998-11-13 | Nippon Telegr & Teleph Corp <Ntt> | Redirection method in roaming of phs terminal |
| US20020128042A1 (en) * | 1999-12-08 | 2002-09-12 | Ayano Doi | Communication controller, base station controller and communication system |
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2003
- 2003-02-11 CN CNB031154360A patent/CN100373957C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998012886A1 (en) * | 1996-09-19 | 1998-03-26 | Nokia Telecommunications Oy | Location management of a wireless terminal |
| JPH10304428A (en) * | 1997-04-22 | 1998-11-13 | Nippon Telegr & Teleph Corp <Ntt> | Redirection method in roaming of phs terminal |
| US20020128042A1 (en) * | 1999-12-08 | 2002-09-12 | Ayano Doi | Communication controller, base station controller and communication system |
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| CN1522078A (en) | 2004-08-18 |
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