CN1798140A - General home location register of supporting signaling in different types of network protocols, and querying method - Google Patents

Abstract

The method includes following steps: the signaling conversion for use in converting other type network signaling (such like: ISUP signaling and non standard MAP signaling) to the standard MAP signaling is made through an advanced signaling converter connecting the external network with the home locating register (HLR) in order to make the existing mobile HLR support the signaling stream based on other network signaling protocol. By the invention, the existing mobile HLR can be reused as the HLR of other type network.

Description

Support the general home location register and the querying method thereof of signaling in different types of network protocols

Technical field

The present invention relates to mobile radio network, more specifically, relate to the mobile attaching position register (HLR) in mobile radio network.

Background technology

In the prior art, wish the mobile attaching position register (HLR) with the 3G mobile radio network, HLR introduces in the CTC 3G network.Like this, need make amendment again to existing mobile HLR according to fixed network.But the mobile HLR of 3G mobile radio network only supports standard media access protocol (MAP) signaling, and the local switch in fixed network is not supported MAP, for example in ISDN (ISDN(Integrated Service Digital Network)), support ISUP (ISDNYong Hubufen) agreement, and PHS net (personal handy phone system) is supported the expansion MAP.This solution relates to too many fixed network local switch, if realize that in all local switchs of existing fixed network the standard MAP will bring many expenses, is unpractical therefore.Thereby, wish under the prerequisite that does not change existing fixed network local switch, to adopt new technical scheme, so that the minimum of conflicting between local switch and the mobile HLR.

Existing best-of-breed technology scheme is from Huawei Tech Co., Ltd, and its HLR product can be supported ISUP signaling and MAP (expansion MAP) signaling simultaneously.And HLR links to each other with the local switch of fixed network by the ISUP signaling, and links to each other with the PHS network by expanding the MAP signaling, with the realization function similar to mobile HLR.But, will redesign for mobile HLR like this, increase corresponding ISUP and PHS interface.

In the prior art, expansion MAP signaling only is used between PHS network and the mobile HLR, and wherein several new arguments are defined in MAP message, to carry enough information.These new arguments and non-standard parameter.If combination HLR is used to mobile network and fixed network, then,, will go wrong especially for the international roaming mobile subscriber for the MAP message of nonstandardized technique.

In addition, in the prior art, the capacity of ISUP signaling does not use fully.This is for to being avoided the consideration of the big conflict between the fixed network local switch.Thereby, need between local switch (LS) and mobile home location register (SHLR), transmit several times that message could realize a simple functions, this will cause the high signal transmission transaction amount in the fixed signal transmission network.

In addition, have only the HLR of Huawei can support above-mentioned existing preferred plan.

Summary of the invention

The objective of the invention is at the problems referred to above of the prior art, make the MAP parameter of existing mobile HLR support ISUP signaling and nonstandardized technique by adopting to change such as the MAP signaling of ISUP signaling and non-standard MAP signaling and standard, just it can not reused HLR into the other types network thereby can not change existing mobile HLR basically.Like this, can be by a cheap and implementation fast, just can realize that simple signaling translates and need to change movable part hardly.

According to a first aspect of the invention, a kind of general home location register that is used to support the different type network signaling protocol is provided, it comprises the mobile attaching position register that is used for mobile radio network, it is characterized in that, this general home location register also comprises: be connected between external network and the described mobile attaching position register, being used for will be based on the signaling flow of the signaling protocol of described external network and the preposition signaling conversion equipment of changing mutually based on the signaling flow of the signaling protocol of described mobile radio network, and wherein said external network has the signaling protocol different with described mobile radio network; Wherein, also preserve the user related data of described external network in the described mobile attaching position register.

According to a second aspect of the invention, a kind of general home location information query method that is used to support the signaling flow of different type network signaling protocol in mobile radio network is provided, this method comprises: receive the signaling flow based on the external network signaling protocol from external network, wherein said external network has the signaling protocol different with the signaling protocol of mobile radio network; Described signaling flow based on the external network signaling protocol is converted to signaling flow based on described mobile radio network signaling protocol; In a mobile attaching position register of described mobile radio network, carry out information inquiry according to the signaling flow after the conversion, store the user's of described heterogeneous networks related data in the wherein said mobile attaching position register based on the mobile radio network signaling protocol; Described Query Result signaling flow based on mobile network protocol is converted to signaling flow based on the external network signaling protocol, and sends to described external network.

Preferably, if in described mobile attaching position register, do not inquire related data, then will be converted to inquiry failure cause based on the inquiry failure cause of described mobile radio network signaling protocol, and send to described external network based on the heterogeneous networks signaling protocol.

Difference between the present invention and the prior art is:

-one preposition signaling converter is used to translate from the isup message of fixing local switch with from the MAP message of HLR,

-standardized MAP keeps motionless, uses the SendRoutingInfo message of standardized MAP message SendIMSI rather than expansion,

-preferably, can redefine user in ISUP ACM message to user profile or use CPG message, CPG message can be carried more information from HLR to improve efficient and to reduce the signaling transaction load.These improvement will be introduced into the follow-up version from the angle of product.

Unlike the prior art, the technical scheme that the present invention incites somebody to action changes the mobile HLR (attaching position register) in the mobile radio network hardly, has wherein only increased the protocol information of other types networks, and the maintenance of the standard MAP signaling of mobile radio network is motionless; And it is compatible mutually with the HLR product of other manufacturers.

Description of drawings

Fig. 1 is the block diagram that is used to support the general home location register of signaling in different types of network protocols according to the present invention;

Fig. 2 is the flow chart that is used for the signaling switching method changed between standard mobile network protocol signaling and signaling in different types of network protocols according to the present invention.

Fig. 3 is the signal flow diagram of carrying out the signaling conversion in ISUP ordinary call scene between ISUP and MAP in accordance with a preferred embodiment of the present invention;

Fig. 4 carries out the signal flow diagram that signaling is changed for expanding between MAP and the MAP in accordance with a preferred embodiment of the present invention in expansion MAP ordinary call scene;

Fig. 5 carries out the signal flow diagram that signaling is changed for expanding between MAP and the MAP in accordance with a preferred embodiment of the present invention in expansion MAP note (SMS) scene.

Embodiment

Below with reference to accompanying drawing, and in conjunction with specific embodiments the present invention is described in detail.Should be appreciated that the present invention is not limited to specific embodiment.

Fig. 1 is the block diagram that is used to support the general home location register of signaling in different types of network protocols according to the present invention.In the drawings, general home location register (SHLR) 1 comprises a preposition signaling converter 2 and a mobile attaching position register (HLR) 3 that belongs to mobile radio network, wherein preposition signaling converter 2 is connected between the other types network local switch (LS) (as fixed network LS 4, PHS_LS 5) of HLR3 and outside, and mobile HLR can directly be connected with mobile network critical point office (GMSC) 7 with mobile network end office (EO) (VMSC) 6.

What transmit between the LS of preposition signaling converter 2 and described other types network is the signaling flow of other types network, such as ISUP (ISDNYong Hubufen), non-standard MAP (expansion MAP) protocol signaling stream.And be that standard MAP with wireless mobile network comes command transmitting stream between preposition signaling converter 2 and mobile HLR3.Preposition signaling converter 2 is used for and will changes mutually based on the signaling flow of other types network signaling protocol and the signaling flow based on the standard MAP of mobile radio network, and also preserves the user data of outside other types network among the mobile HLR3.

When receiving (such as the inquiring user Address requests) signaling flow of the local switch LS (such as fixed network LS4 or PHS net LS 5) from outside other types network, preposition signaling converter 2 is used for this signaling flow is converted to signaling flow based on the standard MAP, and is transferred to mobile HLR 3.Mobile HLR3 is used for carrying out the inquiry of user data according to the standard MAP signaling flow after the conversion, and Query Result is sent back to preposition signaling converter 2.Preposition signaling converter 2 is used for the signaling flow from the Query Result of mobile HLR 3 is converted to signaling flow based on outside other types network signaling protocol, and sends to described external network.Thereby the present invention can not change mobile HLR substantially, keeps supporting the signaling flow of other types network signaling protocol under the motionless situation of the standard MAP of mobile HLR.

Fig. 2 is the flow chart that is used for the signaling switching method changed between standard mobile network protocol signaling and signaling in different types of network protocols according to the present invention.Block diagram below in conjunction with top Fig. 1 comes this signaling switching method is described.In step 201, receive signaling flow (for example station address query requests) from outside other types network, enter step 202.In step 202, the signaling flow (for example station address query requests) of described other types network is converted to the signaling flow based on the standard MAP of mobile radio network, entering step 203.In step 203, in mobile HLR, inquire about according to the signaling flow of being changed based on the standard MAP.Do you in step 204, judge whether described query steps successful? if success then enters step 205, otherwise, enter step 206.In step 205, by beaming back the result who is inquired among the mobile HLR; And in step 206, beam back the information and/or the reason of an inquiry failure by mobile HLR.In next step 207, the information/reason of described Query Result or inquiry failure is converted to the signaling flow of above-mentioned other types network signaling protocol, and in step 208, the signaling flow after the conversion is issued other outside networks.Thereby finished information inquiry process to the other types network except that mobile radio network with existing mobile HLR.

In order to support inquiry to fixed-line subscriber, need and it can be inquired about in mobile HLR 3 (as 3G HLR) storage fixed-line subscriber data, and can not arranged any conflict with mobile network's (as the 3G mobile network) user data by SendIMSI and SendParameters message.And when outside other types network is the PHS network, in table 1, can see PHS-〉the 3G subscription domestic consumer that is used as the 3G mobile network treats, and the difference of MSISDN is only arranged.The PHS number is held as MSISDN.

Table 1:

The HLR user data	Fix N W user	PHS-〉3G subscription	The 3G mobile subscriber
				?MSISDN	DN	The PHS number	MSISDN
?IMSI	LRN	IMSI	IMSI
				?CFD_FTN	Fixed?N?Acc_code	CFD_FTN	CFD_FTN
?CFU_FTN	The Non-3G sign	CFU_FTN	CFU_FTN
				?CFB_FTN	The SMC address	CFB_FTN	CFB_FTN

Table 1: the fixed-line subscriber data in SHLR 1

-for hybrid coding information

If a user wishes still to keep its number when his phone is transferred to other local switchs (LS) or other networks, he will have two numbers: a LRN (internal physical routing number) and a DN (Unicode).

-DN number is distributed by operator, and it is disclosed the operator to other.When the user was the calling party, his DN was present caller rs number, and when the user is that the callee is, his number is that the calling party dials the number that cries; And the DN of operator by the user charges to it.

-LRN number is the internal physical routing number that uses in network, and it is that the user does not know.This number is corresponding to terminal or subscribers feeder, and local switch can route the call to this user's physical location via this LRN.

In mobile HLR 3 (as 3G HLR), (location switch, each user LS) has a record to have changed its local switch.His DN is saved the MSISDN as this record, and his LRN is saved as IMSI.

Do not change local switch (LS) the user but registered in the situation of fixed network IN business, his record then should be arranged, and his number is kept at simultaneously among MSISDN and the IMSI.This means his MISDN equal his IMSI (abandon MNC, MCC, CC).

SHLR will be translated as DN LRN and by computing SendParameters LRN will be translated as DN by computing SendIMSI.

-for the professional indication of fixed network IN

This has an access code of distributing to each the IN business in fixed network, (for example 200,800 etc.).These information will be stored among the general HLR 1 of the present invention (SHLR), and when the local switch (PHS_LS) of the local switch (fixed network LS) of fixed network or PHS net begins to carry out the HLR inquiry, these information will be returned according to the related protocol regulation.

And for the user, predetermined several IN business should be possible.In the agreement regulation, do not limit about how in this case all access codes being put into the agreement of inquiry return messages.Therefore, can all IN_Access_Codes be put in order together the REL message of returning by signaling converter.

In this solution, we use CFD to preserve IN_Access_Codes.In CFD_FTN, per 8 bits (two digit order numbers) are indicated a fixedly IN business.Mapping relations between IN_Access_Codes and binary-coded decimal are as shown in the table:

The mapping relations of table 2 IN access code

8 bits	The BCD value	The IN access code	The IN business
				00000000	00	17900	VoIP(17900)
00010000	01	17901	VoIP(17901)
				00100000	02	17902	VoIP(17902)
00110000	03	17903	VoIP(17903)
				00010001	11	17911	VoIP(17911)
00100001	12	17912	VoIP(17912)
				10000001	18	181	Televoting
00000010	20	200	Calling card service

00000011	30	300	Calling card service
				00000100	40	400	Calling party and callee pay jointly
00000110	60	600	VPN
				00000111	70	700	Personal Communications Services
00001000	80	800	Freephone

For example, if a user has 200,300,600 IN business then are kept at IN_Access_Code among the mobile HLR 3 (as 3G HLR) and are the K ' 203060 as CFD FTN, and are as follows:

0	0	0	0	0	0	1	0
								0	0	0	0	0	0	1	1
0	0	0	0	0	1	1	0

Because digital A-F can not be used as CFD_FTN, thereby 100 total IN access codes can be mapped as BCD number (digital 00-99).Because the length of CFD_FTN is 16 numerals, therefore a user can keep maximum 8 IN business simultaneously.

3G HLR can be in Send Parameter ACK message gives CFD information and goes back signaling converter.Then, this signaling converter is checked the numeral in FTN, they is translated as the set of one group of IN_Access_Codes, and in REL message they is returned LS.Notice that in Send Parameter ACK message, CFD-FTN is shown with hexadecimal format.Get top example, its heuristicimal code is: H ' 02,03, and 06.

-for non-3G indication

In order to distinguish 3G subscription and fixed-line subscriber, in CFU_FTN, a non-3G designator is set for all fixed-line subscribers.Advise special dial number K ' 99999 as designator.Because this designator should be defined as a number that can not be moved 3G subscription, can go up (onsite) condition according to the station and change this number as a common forward direction number.

-for SMC information

In the SHLR standard, SM signaling GW (AAA) will send SRIforSM to SHLR, and in order to inquiry, SHLR gives also about CgDN, the information of CdLRN and termination SMC address.

In fixed network, termination SMC address is essential for the SM route.In the mobile network because send be all the time from the SMC that initiates via GMSC/VMSC to MS, therefore do not need termination SMC address.Thereby, mustn't keep termination SMC address for each 3G subscription in mobile HLR3 (as 3G HLR).In order to follow this standard, can in signaling converter, preserve a default 3G SMC address, with thinking that SM sends SRI_ACK.

For the fixed network user, we use CFB_FTN to preserve fixedly SMC address.

-for the user type in SHLR, shown in following table 3.

The user type that table 3 is possible

Num	User type	MISISN vs IMSI	Fix N W IN user indication	Non-3G user's indication
					1	Only mix the numbering fixed-line subscriber	≠	×	√
2	Fix N W IN user only	＝	√	√
					3	Mix numbering IN user	≠	√	√
4	PHS-〉3G subscription	≠	×	×

Shown in Fig. 3 be, under ISDN User Part, carry out in the situation of ordinary call, according to the example that is used to be supported between preposition signaling converter and the fixed network with the transmission of ISUP signaling protocol of the present invention.Below in conjunction with Fig. 1 and 2 this example is described:

I. at first, the ISUP IAM message (initial address message) that the preposition signaling converter 2 among the general HLR 1 of the present invention receives from fixed network LS 4, wherein, in IAM:

-DPC is the point coding of mobile HLR 3, and OPC is the point coding of fixed network LS

-caller rs number is CgLRN

-callee number is CdDN

-redirect number is RedirectingLRN (in the situation of Call Forwarding).

II. subsequently, preposition signaling converter 2 is a MAP message with ISUP IAM message translation:

-when receiving IAM, signaling converter is checked number.Suppose and have only local number in general HLR 1 of the present invention (SHLR), to be inquired about.Therefore, if number originates in ' 0 '/' 00 ' (charge number) or ' 179XX ' (access number) or pure IN access number (for example 200,800 etc.), do not have MAP message and be sent to SHLR and be used for inquiry.

-then, preposition signaling converter 2 is checked number, inquiry if desired, and preposition signaling converter 2 sends MAP SendParameters to SHLR for CgPN, for CdPN sends SendIMSI/SendParameters.Note, then having only SendIMSI to send, because the IN business information has been available if CdPN is the form of INAcc_Code+CdPN.Because DN is stored in mobile HLR 3 as MSISDN, preposition signaling converter 2 should be added to CC the front of DN before sending SendParameters message.Preposition signaling converter 2 will keep a mapping table to preserve sign (for example CIC), CgPN, CdPN and the possible redirect number of the IAM message that is received.Preposition signaling converter 2 sends has the MAP message of calling ID that is kept in the mapping table, thereby correct isup message can be beamed back fixed network LS 4.

-more preferably, preposition signaling converter 2 at first sends SendParameters to mobile HLR 3 (as 3G HLR), is used for CgPN inquiry, and whether decision continues the inquiry of CgPN or not according to the Query Result of CgPN then.

-in SendIMSI message:

-DPC is PC2 (point coding of 3G HLR), OPC is PC1 (point coding of LSa);

-to call ID be sequence code, it is distributed automatically by transducer;

-call operation is ' SendIMSI '

-mobile subscriber ISDN number

The characteristic of-address designator: 1-international number

-numbering plan designator: 1-ISDN/ telephone number plan

-address: CC+DN

-in SendParameters message:

-DPC is the point coding of mobile HLR 3 (as 3G HLR), and OPC is the point coding of fixed network LS;

-AC is a version 1;

-to call ID be a serial number, it is distributed automatically by preposition signaling converter 2;

-operation code is ' SendParameters '

User ID: IMSI (MCC+MNC+LRN)

RequestParameterList：2-RequestSubscriberData

It should be noted that in the Call Forwarding situation preposition signaling converter 2 sends RedirectingLRN rather than CgLRN.

III. mobile HLR 3 (as 3G HLR) handles and the result is returned the MAP message that is received.

It should be noted that if the user is not one type listed in the table 1, in 3G HLR with not keeping records.In addition, if the user mixes the numbering user but registration IN business comprises the record with dummy argument MSISDN in mobile HLR 3.

-mobile HLR 3 search are included in the DN in the SendIMSI message of reception, if find record, LRN will be returned in message SendIMSI_ACK; If do not find record, mobile HLR 3 will return mistake ' UnknownSubscriber '

-in SendIMSI_ACK message:

-DPC is PC1 (point coding of LSa), and OPC is PC2 (point coding of 3G HLR);

-AC is a version 1;

The operation of-return results is ' SendIMSI ';

-IMSI International Mobile Subscriber Identity

_ Mobile Country Code MCC: MCC

_ Mobile Network Code: MNC

_ mobile subscriber identification code: LRN

-3G HLR search is received is included in LRN in the SendParameters message, if find record, relevant user data will be returned in message SendParameters_ACK; If do not find record, 3G HLR will return mistake ' UnknownSubscriber '.

-in SendParameters_ACK message

-DPC is the point coding of fixed network LS 4, and OPC is the point coding of mobile HLR 3 (3G HLR));

-AC is a version 1;

-operation code is ' SendParameters ' SentParameterList

-SentParameterList

SubscriberData

MSISDN

_ Extension Indicator: non-expansion

_ Nature of Address: international number r

_ Numbering Plan Indicator:ISDN phone does not have plan (E.164)

_MS?ISDN?Address?Signals：CC+DN：

IV. last, preposition signaling converter 2 is an isup message with the MAP message translation that is received:

When receiving the confirmation, preposition signaling converter 2 is checked mapping table, and correct isup message is returned to fixed network local switch 4:

Fig. 4 carries out the signal flow diagram that signaling is changed for expanding between MAP and the MAP in accordance with a preferred embodiment of the present invention in expansion MAP ordinary call scene.In expansion MAP scene, the standard MAP signaling between preposition signaling converter 2 and mobile HLR3 (as 3G HLR) is with shown in Figure 3 identical.Both differences are to be expansion MAP message but not isup message between PHS_LS 5 and preposition signaling converter 2.Detail can be referring to signal flow shown in Figure 5.

In accordance with a preferred embodiment of the present invention the signal flow diagram of in expansion MAP note (SMS) scene, between expansion MAP and MAP, carrying out the signaling conversion that shown in Figure 5 is.This SMS scene is similar to normal call scenario, and difference is: in SMS, and the inquiry of unmatchful caller rs number, also not to the inspection of IN business.Desired information only is the number of change and callee's SMC address.

More than specific embodiments of the invention are described.Need to understand being, the present invention is not limited to above-mentioned specific execution mode, and those skilled in the art can make various modification or modification within the scope of the appended claims.

List of references:

[1] the current techique standard of intelligent HLR, in March, 2004

[2] technical specification of intelligent HLR signaling interface, in March, 2004

[3] digital cellular telecommunication systems (stage 2+); Universal Mobile Telecommunications System (UMTS); MAP (MAP) standard (3GPP TS 19.002, version 3 .14.0,1999), ETSITS 129 002 v3.14.0 (2002-09)

[4] digital cellular telecommunication systems (stage 2); MAP (MAP) standard (GSM09.02), ETS 300 599 (GSM 09.02 version 4.15.1): May 1997

Claims (10)

1. general home location register that is used to support the different type network signaling protocol, it comprises the mobile attaching position register that is used for mobile radio network, it is characterized in that, this general home location register also comprises:

Be connected between external network and the described mobile attaching position register, being used for will be based on the signaling flow of the signaling protocol of described external network and the preposition signaling conversion equipment of changing mutually based on the signaling flow of the signaling protocol of described mobile radio network, and wherein said external network has the signaling protocol different with described mobile radio network;

Wherein, also preserve the user related data of described external network in the described mobile attaching position register.

2. general home location register according to claim 1 is characterized in that, described signaling flow is and the relevant signaling of station address inquiry.

3. general home location register according to claim 1 and 2 is characterized in that, the signaling protocol of described external network comprises ISDN User Part and expansion MAP.

4. according to each described general home location register in the claim 1 to 3, it is characterized in that the signaling protocol of described mobile radio network is the standard MAP.

5. according to each described general home location register in the claim 1 to 4, it is characterized in that described mobile attaching position register also is used for, when not inquiring related data, will inquire about failure cause and send back to described preposition signaling conversion equipment;

Described preposition signaling conversion equipment also is used for described inquiry failure cause is converted to reason based on described external network signaling protocol, sends to described external network.

6. general home location information query method that in mobile radio network, is used to support the signaling flow of different type network signaling protocol, this method comprises:

Reception is from the signaling flow based on the external network signaling protocol of external network, and wherein said external network has the signaling protocol different with the signaling protocol of mobile radio network;

Described signaling flow based on the external network signaling protocol is converted to signaling flow based on described mobile radio network signaling protocol;

In a mobile attaching position register of described mobile radio network, carry out information inquiry according to the signaling flow after the conversion, store the user's of described heterogeneous networks related data in the wherein said mobile attaching position register based on the mobile radio network signaling protocol;

Described Query Result signaling flow based on mobile network protocol is converted to signaling flow based on the external network signaling protocol, and sends to described external network.

7. method according to claim 6 is characterized in that, described signaling flow is and the relevant signaling of station address inquiry.

8. according to claim 6 or 7 described methods, it is characterized in that the signaling protocol of described external network comprises ISDN User Part and expansion MAP.

9. according to each described method among the claim 6-8, it is characterized in that described mobile radio network signaling protocol comprises the standard MAP.

10. according to each method among the claim 6-9, it is characterized in that, also comprise:

If in described mobile attaching position register, do not inquire related data, then will be converted to inquiry failure cause based on the inquiry failure cause of described mobile radio network signaling protocol, and send to described external network based on the heterogeneous networks signaling protocol.

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