CN1319391C

CN1319391C - Method of distinguishing different local network usder same mobile exchange center/ service exchange point

Info

Publication number: CN1319391C
Application number: CNB031004555A
Authority: CN
Inventors: 李世前
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2003-01-14
Filing date: 2003-01-14
Publication date: 2007-05-30
Anticipated expiration: 2023-01-14
Also published as: WO2004064419A1; CN1518368A

Abstract

The present invention provides a method for distinguishing different local networks under the same mobile switching center/service switching point, which is characterized in that each local network is divided into at least one position area in more than one local network covered nu MSC/SSP, wherein each position area is assigned with an MSCID, and position areas belonging to different local networks are assigned with different MSCIDs. The present invention not only solves the problem that a plurality of local networks under the same MSC/SSP can not be distinguished by a network entity, but also solves the problems that MSes in different local networks under the same MSC/SSP can not be carried out roaming limit and an intelligent user SCP can not be correctly charged.

Description

Distinguish the method for different local networks under same mobile switching centre/Service Switching Point

Technical field

The present invention relates to the communication technology between the portable terminal in the mobile communication system, particularly a kind of method of distinguishing different local networks under same mobile switching centre/Service Switching Point.

Background technology

Along with the development of mobile communication technology, code division multiple access (CDMA) network has obtained using widely.Fig. 1 is a cdma network networking sketch, and as shown in Figure 1: cdma network mainly is made up of portable terminal (MS) 100, base station sub-system (BSS) 102, Service Control Point 101, mobile switching centre/Service Switching Point (MSC/SSP) 103 and attaching position register (HLR) 104.

In present cdma network, the MSC sign (MSCID) that each MSC/SSP is corresponding unique, each entity in the cdma network is distinguished different MSC/SSP by MSCID.And when certain MS was called out, the MSC at this current place of MS can distribute a roaming number (TLDN) as routing iinformation for this called MS.The embodiment flow chart of Fig. 2 for realizing in the prior art calling out between the MS, then the detailed process that realization is called out between the MS in the cdma network mainly may further comprise the steps as shown in Figure 2:

Step 200, when certain MS called out a MS, that make a call was caller MS, called is called MS.

Step 201, the MSC/SSP at caller MS place determines by the telephone number (MDN) of analyzing called MS which HLR is called MS belong to.

Step 202, the MSCID of the current position of inquiry called MS correspondence among the HLR under called MS, and then obtain called MS present located MSC/SSP.Because each MS roam into one new when regional, can carry out location registers to the MSC/SSP at current place and report the current location information of self, by the location registers message HLR that this MS of location information notification of this MS is affiliated, the positional information here is the MSCID of current MSC/SSP of living in to this MSC/SSP again.

Step 203 is distributed to TLDN of this called MS by the MSC/SSP at the current place of called MS;

Step 204, the TLDN of called MS passes to Originating Office MSC by the HLR under the called MS;

Step 205～206, caller MSC determines the route of called MS by the TLDN of called MS, sets up speech channel according to route then, finishes communicating by letter between caller MS and the called MS.

Just build stage or the relatively low place of MS density at network, each MSC/SSP tends to cover a plurality of local networks, and the coverage of each local network can be divided arbitrarily according to the needs of the network planning.In this case, because the only corresponding MSCID of a plurality of local networks, then other network entities in the cdma network can't be distinguished different local networks according to MSCID.Therefore, when same MSC/SSP administered a plurality of local network, no matter MS at which local network made a call or is called out, for HLR, MS has identical MSCID, so will cause other network entities can't distinguish the problem which local network this MS belongs to.

In addition, a MSC/SSP covers a plurality of local networks, and MS moves between the different local networks under the same MSC/SSP arbitrarily, also belong to roaming, but owing to be under the same MSC/SSP, for HLR, the MSCID of user's correspondence is identical all the time, so HLR can't realize the roaming restriction to the user.And, for intelligent subscriber, such as: prepaid user, group user or the like, charging when it is called out is finished by SCP, the TLDN that SCP distributes according to the MSCID of calling subscriber's correspondence and called subscriber determines calling and called user's position, is implemented in the user's communication process the real-time deduction to the calling and called customer charge thus.But because the only corresponding MSCID of present each MSC/SSP, SCP can not distinguish by MSCID belong to the MS of different local networks, thereby can't accurately judge the MS type of call, thereby causes and can't correctly charge for the calling subscriber.Equally, because TDLN is distributed by specific MSC/SSP, the TDLN prefix that same MSC distributed is fixed, therefore when same MSC/SSP covers a plurality of local network, because the TLDN prefix of distributing is fixed, SCP not only can't obtain the accurate information of caller according to the difference of MSCID, and can't obtain called accurate location information according to the difference of TDLN prefix, can't accurate billing to intelligent subscriber SCP thereby cause.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of method of distinguishing different local networks under same mobile switching centre/Service Switching Point, not only solve network entity and can't distinguish the problem of a plurality of local networks under the same MSC/SSP, and solved the problem that the MS in the different local networks can't roam restriction and can't correctly charge to intelligent subscriber SCP under same MSC/SSP.

In order to achieve the above object, the invention provides a kind of method of distinguishing different local networks under same mobile switching centre/Service Switching Point, this method is that each local network in the above local network that MSC/SSP is covered is divided at least one lane place, and be MSCID of one or more lane place distribution, and belong to the MSCID difference of the lane place distribution of different local networks.

Corresponding one or more the different MSCID of a local network described in the such scheme.The corresponding relation of described MSCID and lane place is recorded among the MSC/SSP.

Such scheme further comprises: according to the MSCID distribution T LDN of the current correspondence of called MS.Determine the local network at the current place of called MS according to the MSCID of the current correspondence of MS.

Because the present invention makes a physics MSC/SSP entity have a plurality of MSCID, corresponding at least one MSCID of each local network under the same MSC/SSP, thereby make HLR can judge the particular location at caller MS or called MS place, and then give according to MSCID and to be called MS and to distribute corresponding TLDN according to MSCID.When a MSC/SSP covers a plurality of local network, other network entity can be by the different local networks under the different MSCID judgement MS place MSC/SSP, not only make different local networks or the lane place roaming restriction of MS under same MSC/SSP become possibility, and solved the charging problem when calling out between the different local networks of intelligent subscriber under same MSC/SSP.

Description of drawings

Fig. 1 is a cdma network networking sketch.

Fig. 2 is an embodiment flow chart of realizing calling in the prior art between the MS.

The embodiment flow chart of Fig. 3 between the MS of different local networks under the same MSC/SSP, realizing among the present invention calling out.

Embodiment

In order to make the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.

Cover the situation of a plurality of local networks for a MSC/SSP, the present invention further divides lane place (LAI) on the basis of local network, that is: each local network among the MSC/SSP can be divided into one or more lane place, distribute and only distribute a MSCID for each lane place then, and MSCID can corresponding a plurality of lane place, that is to say, the MSCID in several position district can be identical or different under the same local network, can not be identical but belong to the MSCID that the lane place of different local networks distributes.The corresponding relation of MSCID and lane place is recorded among the MSC/SSP.

Because a local network comprises one or more lane place, so, corresponding at least one MSCID of local network, so just can guarantee that the different local networks under the same MSC/SSP have different MSCID, thereby guarantee that the network implementation physical efficiency distinguishes the different local networks under the same MSC/SSP, or even the diverse location district in the same local network.

Because being the MSCID according to the current correspondence of called MS, the distribution principle of TLDN prefix distributes, therefore the TLDN prefix of distributing for different MSCID is also different, so when called MS is in different local network under the same MSC/SSP, can ensure to called MS and distribute different TLDN prefixes, thereby make SCP can obtain called MS positional information accurately.

When a MSC/SSP covers a plurality of local network, be in the process of calling out between two MS of different local networks as shown in Figure 3, this process mainly comprises:

Step 300～301 are in when calling out between two MS of different local networks, and the MSC/SSP at caller MS place determines by the telephone number (MDN) of analyzing called MS which HLR is called MS belong to.

Step 302 is searched the MSCID of the current correspondence of called MS then among the HLR under called MS, determine the position that called MS is current according to this MSCID again, i.e. current which local network under MSC/SSP of called MS.The MSCID of the called MS correspondence among the HLR is that called MS roams into when current local network carries out location registers and stores, and different MSCID represents different local networks.

Step 303, the MSC/SSP at the current place of called MS distributes to a roaming number of called MS (TLDN) according to the MSCID of correspondence, the prefix designates of this TLDN the local network at the current place of called MS;

Step 304～306, the TLDN of called MS passes to Originating Office MSC by the HLR under called, and caller MSC determines the route of called MS by the TLDN of called MS, sets up speech channel according to this route again, finishes communicating by letter between caller MS and the called MS.

Above process is the situation of the corresponding MSCID of a local network, when an a plurality of MSCID of local network correspondence, because corresponding MSCID in each lane place, so HLR inquires the position at the current place of called MS in the above-mentioned steps 302 according to the MSCID of called MS correspondence, be current which the fixing lane place in which local network of called MS, so, the prefix of the TLDN that is distributed is promptly represented the lane place at called MS place.

In said process, because the MSCID difference of different local networks under the same MSC/SSP can also solve each MS random zone restricted problem.Such as: HLR can promptly allow the MSCID group of roaming in advance for MS sets the random zone that allows.When the MS of roaming carries out location registers, HLR searches in predefined MSCID group according to the current MSCID of called MS in the location registers message, if MSCID is in allowing the MSCID group of roaming, then accept user's location registers message, otherwise the refusing user's location registers.Can realize the roaming restriction between local network so flexibly.

The method according to this invention also can solve the problem that intelligent subscriber can't correctly charge.When caller MS begins to call out, because the MSC/SSP at caller MS place distributes different MSCID according to the current position district of caller MS, the MSC/SSP at caller MS place guarantees to issue the correctness of the MSCID of caller MS in the SCP message, the i.e. correctness of caller MS position; When called MS is exhaled, the MSCID distribution T LDN that the MSC/SSP at the current place of called MS is current according to called MS, guaranteed that the called MS in zones of different has different TLDN, makes the correctness of issuing TLDN in the SCP message, i.e. the correctness of called MS position.SCP can obtain the particular location at caller MS or the current place of called MS accurately according to said process, thereby the correct type of judging calling realizes the process by SCP correct calculation calling charge.

Hence one can see that, provided by the inventionly under same MSC/SSP, adopt a plurality of different MS CID to determine the method for different local networks or lane place in different local networks or the lane place, on the one hand fundamentally solved the problem that is produced when a MSC/SSP covers a plurality of local network, make other network entities can distinguish a plurality of local networks under same MSC/SSP, realized roaming restriction and correct charging of MS in the different local networks under same MSC/SSP; On the other hand, because same physics MSC/SSP can contain a plurality of MSCID, do not need to be equipped with a plurality of physics MSC/SSP and cover different local networks, thereby reduced the cost of building, reduced the cost of safeguarding, reduce the occupation of land of machine room and saved operation cost, obtain good effect.

The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims

1, a kind of method of distinguishing different local networks under same mobile switching centre/Service Switching Point, it is characterized in that, this method is that each local network in the above local network that MSC/SSP is covered is divided at least one lane place, and for distributing a MSCID in one or more lane place, and the MSCID difference that the lane place that belongs to different local networks is distributed is recorded in the corresponding relation of lane place and MSCID among the MSC/SSP.

2, the method for claim 1 is characterized in that, corresponding one or more the different MSCID of local network.

3, the method for claim 1 is characterized in that, this method further comprises the MSCID distribution T LDN according to the current correspondence of called MS.

4, the method for claim 1 is characterized in that, this method further comprises the local network of determining the current place of MS according to the MSCID of the current correspondence of MS.