CN100563374C - Global title translation device and global title's processing method - Google Patents

Global title translation device and global title's processing method Download PDF

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Publication number
CN100563374C
CN100563374C CNB2006101653852A CN200610165385A CN100563374C CN 100563374 C CN100563374 C CN 100563374C CN B2006101653852 A CNB2006101653852 A CN B2006101653852A CN 200610165385 A CN200610165385 A CN 200610165385A CN 100563374 C CN100563374 C CN 100563374C
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China
Prior art keywords
address
group
global title
translation
addressing system
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CNB2006101653852A
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CN1997235A (en
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蔡云霞
余春平
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CNB2006101653852A priority Critical patent/CN100563374C/en
Publication of CN1997235A publication Critical patent/CN1997235A/en
Priority to PCT/CN2007/071259 priority patent/WO2008074259A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0025—Provisions for signalling

Abstract

The invention discloses a kind of global title translation device and global title's processing method, device comprises: group's memory module is used to store the mapping table between caller information and the group number; Group's enquiry module is connected with group's memory module, is used for according to mapping table, obtains corresponding with caller information group number; The translation table of comparisons is used to store the corresponding informance between described group number, called address and the purpose forwarding address; Translation module is connected with the group's enquiry module and the translation table of comparisons respectively, is used for according to the group of caller information correspondence number and translates the table of comparisons, and called address is translated as the purpose forwarding address; Method comprises: obtain the group corresponding with the caller information that carries in the message that receives number; According to the caller information correspondence group number and the translation table of comparisons, the called address that carries in the message is translated as the purpose forwarding address.Adopt the present invention, realized that same GT translating equipment translates into different purpose forwarding address with same called address.

Description

Global title translation device and global title's processing method
Technical field
The present invention relates to the addressing technique in the wireless communication technology, especially a kind of GT (Global Title, global title) translating equipment and GT processing method.
Background technology
SCCP in the No.7 signalling system (Signalling Connection Control Part, SCCP) is MTP (Message Transfer Part, Message Transfer Part) provides additional function, so that by the Signaling System Number 7 net, between exchange and special-purpose center, set up not have and connect and connection-oriented network service transfer circuit relevant and uncorrelated signaling information and other types information (for example: be used to administer and maintain purpose information).SCCP is positioned on the MTP, and with three layers of network layer that constitutes signaling network of MTP, both combine provides the Network layer function that is equivalent to OSI (open system interconnection) structure.
One of maximum constraints of MTP is to come addressing according to DPC (Destination Point Code, Destination Point Code), and that this addressing system does not possess is of overall importance, and the DPC sum is limited in the network, and therefore, addressing range is little, and addressability is low.The introducing of SCCP provides a kind of GT addressing system of the overall situation, has enlarged addressing range and the addressability of MTP.But, because SCCP message is in fact still transmitted for three layers by MTP, therefore when SCCP message is used GT mode route, need carry out the GT translation, the SPC (Signalling Point Code, signaling point code) that comes out according to translation carries out addressing in the MTP network.
The Signaling System Number 7 net is made up of with the signaling link that is connected them SP (Signalling Point, signalling point), STP (Signalling Tranfer Point, Signalling Transfer Point).Wherein, STP is a nucleus equipment, and the signaling information (except that the F link) of the overwhelming majority all will transmit through STP in the network.Fig. 1 and Fig. 2 are two kinds of networking schematic diagrams that use at present the most normal use of SCCP.Among Fig. 1, A, B, C, D, E represent the signaling point code of 5 network elements respectively, and wherein A represents local exchange equipment, and B serves as Signalling Transfer Point function (being STP), and C, D, E represent purpose office equipment.When the network planning and data configuration, the local exchange device A only need be known the also signaling point code (being B) of configuration stp, all message that need carry out the GT translation all are to translate B earlier, and then translate concrete destination C, D or E by B, this mode has realized mutual between local exchange and the purpose office, can reduce local exchange data configuration, alleviate network planning difficulty.
Among Fig. 2, G, H represent the signaling point code of local exchange and purpose office respectively among the last figure, and this networking generally is to use under simple at network, that network element the is less situation.When doing the network planning and data configuration, local exchange only needs to dispose the signaling point code of B, and local exchange G need directly translate the H of purpose office according to the message of GT route.
In above-mentioned two kinds of networkings of the most normal use at present, the calling address that need carry out the GT translation is identical, promptly is respectively local exchange A and G, therefore, when carrying out the GT translation, only carries out addressing according to called address.The method of its GT translation is as follows: after STP receives the information of MTP, according to information content selective addressing mode, that is: " DPC (Destination Point Code; Destination Point Code)+SSN (SubsystemNumber; subsystem) ", " DPC ", " the former GT of DPC+ " or " the new GT of DPC+ ", then according to maximum match principle, search the translation table of comparisons successively, called address is carried out the GT translation, according to above-mentioned addressing system, obtain " NI (Network Identity; network identity)+SPC+SSN " successively, " NI+SPC ", " the former GT of NI+SPC+ " or " the new GT of NI+SPC+ " translation result information, carry out addressing according to this translation result information then, realize the route of information.
But different and when needing message that STP sends different local exchange equipment according to different routing forwarding when local exchange equipment, the method for only carrying out the GT translation according to called address in the prior art just can't satisfy this requirement.For example: Figure 3 shows that the schematic diagram that local exchange equipment is used as SCCP layer Signalling Transfer Point.Among Fig. 3, STP represents local exchange equipment, finishes the message signaling transfer point of SCCP layer, and MSC1 and STP1 belong to the same SP1 of telecom operators, MSC2 and STP2 belongs to the SP2 of another one operator.For operation cost or otherwise factor, the SP1 of operator wishes that STP transmits the message of (attaching position register) from MSC1 to HLR by STP1, and same SP2 wishes that STP transmits the message from MSC2 to HLR by STP2.For another example: Figure 4 shows that the schematic diagram that local exchange equipment is used as virtual a plurality of logic office of end office (EO).Among Fig. 4, I, J represent that respectively local exchange equipment invents the signalling point of two logic offices, and K represents the SCCP signaling transfer point equipment, and HLR is the equipment of playing a game, and it has only a HLR number (promptly having only a GT sign indicating number), and I, J and HLR have interacting message.In the practical application, need I office directly to translate HLR, and the GT to HLR of J office translates K in the former GT mode of DPC+ earlier, and then translate HLR by K to the GT of HLR.
Summary of the invention
Embodiment of the invention technical problem to be solved is: overcome in the prior art method of only carrying out the GT translation according to called address, can't satisfy message that local exchange equipment difference and needs STP the send different local exchange equipment shortcomings and deficiencies according to the demand of different routing forwarding.
For solving the problems of the technologies described above, a kind of global title translation device that the embodiment of the invention provides comprises:
Group's memory module is used to store the mapping table between caller information and the group number;
Group's enquiry module is connected with described group's memory module, is used for according to described mapping table, obtains corresponding with caller information group number;
The translation table of comparisons is used to store the corresponding informance between described group number, called address and the purpose forwarding address;
Translation module comprises addressing system determining unit and translation processing unit;
Described addressing system determining unit is connected with described group's enquiry module, is used for determining addressing system according to described called address;
Described translation processing unit is connected with the described addressing system determining unit and the described translation table of comparisons respectively, be used for according to described caller information correspondence group number and the described translation table of comparisons, according to described addressing system described called address is translated as the purpose forwarding address.
For solving the problems of the technologies described above, a kind of global title processing method that the embodiment of the invention provides comprises: obtain the group corresponding with the caller information that carries in the message that receives number; Determine addressing system according to called address;
According to described caller information correspondence group number and the described translation table of comparisons, according to described addressing system described called address is translated as the purpose forwarding address.
Embodiments of the invention have following beneficial technical effects:
At same called address, according to the different different translation results of caller information configuration, when called address is carried out the GT translation, in conjunction with caller information called address is translated, realized that same GT translating equipment can translate into same called address different purpose forwarding address, can satisfy local exchange equipment not simultaneously, the message that STP sends different local exchange equipment is according to the demand of different routing forwarding.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is a kind of networking schematic diagram that uses at present the most normal use of SCCP.
Fig. 2 is the another kind of networking schematic diagram that uses at present the most normal use of SCCP.
Fig. 3 is the schematic diagram that local exchange equipment is used as SCCP layer Signalling Transfer Point.
Fig. 4 schematic diagram that to be local exchange equipment use as virtual a plurality of logic office of end office (EO).
Fig. 5 is the structural representation of GT translating equipment of the present invention.
Fig. 6 is the flow chart of GT processing method of the present invention.
Embodiment
The embodiment of the invention disposes different GT groups to different caller informations in advance in the GT translating equipment, and set up caller information and each GT group group number between mapping table, specify the corresponding informance between called address and the purpose forwarding address among each GT group respectively, when called address is translated, earlier determine GT group according to caller information, and then, called address is carried out the GT translation according to the corresponding informance between called address among the affiliated GT group and the purpose forwarding address.
Figure 5 shows that the structural representation of GT translating equipment of the present invention, the GT translating equipment comprises group's memory module 1, group's enquiry module 2, the translation module 3 and the translation table of comparisons 4 that connects successively.
Wherein, group's memory module 1 is used to store the mapping table between caller information and each GT group's the group number.Caller information wherein be specifically as follows the former signaling point code that carries in the calling address information (Originating Point Code, OPC), SSN or global title's value (that is: GT value).
Group's enquiry module 2 is after receiving messages sent by users, obtain the calling address information of carrying in this message, further obtain the caller information in this calling address information: OPC, SSN or GT value, and stored relation table in the inquiry group memory module 1, obtain the GT group corresponding with this caller information group number.
The translation table of comparisons 4 is used to store the corresponding informance between each GT group's group number, called address and the purpose forwarding address.
Translation module 3 is used for the group that gets access to according to group's memory module 1 number, and the translation table of comparisons of storage in the query translation table of comparisons 4 is translated as the called address in the message purpose forwarding address among the GT group of corresponding calling information correspondence.
Translation module 3 specifically comprises addressing system determining unit 31 and translation processing unit 32.Wherein, addressing system determining unit 31 is connected with group's enquiry module 2, is used for determining that according to called address information addressing system is DPC+SSN, DPC, the former GT of DPC+ or the new GT of DPC+.Translation processing unit 32 is connected with the addressing system determining unit 31 and the translation table of comparisons 4 respectively, is used for according to the group of caller information correspondence number and the translation table of comparisons, and the addressing system according to definite is translated as the purpose forwarding address with called address.
According to OPC in the different calling address information or the different GT group of GT value configuration, and set up mapping table between different OPC or GT value and corresponding GT group's the group number, in the translation table of comparisons, at different GT groups, specify the corresponding informance between called address and the purpose forwarding address respectively.Afterwards, in conjunction with the mode of called address called address is carried out the GT translation according to caller information.
Figure 6 shows that the flow chart of GT processing method of the present invention, it may further comprise the steps:
Step 601, receive messages sent by users, obtain the calling address information of carrying in this message, further obtain the caller information in this calling address information: OPC, SSN or GT value, and inquiring calling information and group number between mapping table, obtain this caller information correspondence GT group group number.
Step 602, among the GT group that corresponding with caller information group number is identified in the query translation table of comparisons, the corresponding informance between called address and the purpose forwarding address is translated as the purpose forwarding address with the called address that carries in the message.
Adopt calling address information called address to be carried out the method for GT translation in conjunction with called address information, can realize the same called address of different calling address information correspondences is translated as different purpose forwarding address, thereby can realize message that same STP sends different local exchange equipment demand, for example: Fig. 3 and shown in Figure 4 according to different routing forwarding.
During concrete the translation, earlier determine that according to called address information addressing system is DPC+SSN, DPC, the former GT of DPC+ or the new GT of DPC+, and then among the GT group that corresponding with caller information group number is identified in the query translation table of comparisons, corresponding informance between called address and the purpose forwarding address, the called address that carries in the message is translated as the purpose forwarding address, just can carries out addressing according to the purpose forwarding address respectively then.
If the addressing system of determining is DPC+SSN, when then carrying out the GT translation, called address is translated as the purpose forwarding address of representing with NI+SPC+SSN, wherein DPC is in order to indicate SSN place node.If determine that addressing system is DPC, when then carrying out the GT translation, called address is translated as the purpose forwarding address of representing with NI+SPC, wherein, DPC is in order to indicate destination node.If the addressing system that adopts is the former GT of DPC+, when then carrying out the GT translation, called address is translated as the purpose forwarding address of representing with the former GT of NI+SPC+.If the addressing system that adopts is the new GT of DPC+ (actual is the Translation Type sign indicating number), when then carrying out the GT translation, called address is translated as the purpose forwarding address of representing with the new GT of NI+SPC+, wherein DPC makes the node of Global Title Translation in order to indicate the next one.
The beneficial effect that the embodiment of the invention is total:
Realized that same GT translating equipment can translate into same called address different purpose forwarding address, satisfied local exchange equipment not simultaneously, the message that STP sends different local exchange equipment is according to the demand of different routing forwarding.
It should be noted last that: above embodiment is only in order to illustrating technical scheme of the present invention, but not the present invention is made restrictive sense.Although the present invention is had been described in detail with reference to above-mentioned preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and this modification or be equal to the spirit and scope that replacement does not break away from technical solution of the present invention.

Claims (8)

1, a kind of global title translation device is characterized in that comprising:
Group's memory module is used to store the mapping table between caller information and the group's of global title the group number;
Group's enquiry module is connected with described group's memory module, is used for according to described mapping table, obtain the global title group corresponding with caller information group number;
The translation table of comparisons is used to store the corresponding informance between described group number, called address and the purpose forwarding address;
Translation module comprises addressing system determining unit and translation processing unit;
Described addressing system determining unit is connected with described group's enquiry module, is used for determining addressing system according to described called address;
Described translation processing unit is connected with the described addressing system determining unit and the described translation table of comparisons respectively, be used for according to described caller information correspondence group number and the described translation table of comparisons, according to described addressing system described called address is translated as the purpose forwarding address.
2, global title translation device according to claim 1 is characterized in that described caller information is former signaling point code, subsystem or global title's value of carrying in the calling address information.
3, a kind of global title processing method is characterized in that comprising:
Obtain the global title group's corresponding group number with the caller information that carries in the message that receives;
Determine addressing system according to called address;
According to described caller information correspondence group number and the translation table of comparisons, according to described addressing system described called address is translated as the purpose forwarding address; The described translation table of comparisons is used to store the corresponding informance between described group number, called address and the purpose forwarding address.
4, global title according to claim 3 processing method, it is characterized in that determining that according to described called address addressing system is specially:, determine that addressing system is Destination Point Code DPC+ subsystem SSN, the former GT of global title of DPC, DPC+ or the new GT mode of DPC+ according to the addressing system information of carrying in the described called address.
5, global title according to claim 4 processing method when it is characterized in that addressing system is DPC+SSN, is translated as described called address the purpose forwarding address of representing with network identity NI+ signaling point code SPC+SSN.
6, global title according to claim 4 processing method when it is characterized in that addressing system is DPC, is translated as described called address the purpose forwarding address of representing with NI+SPC.
7, global title according to claim 4 processing method when it is characterized in that addressing system is the former GT of DPC+, is translated as described called address the purpose forwarding address of representing with the former GT of NI+SPC+.
8, global title according to claim 4 processing method when it is characterized in that addressing system is the new GT of DPC+, is translated as described called address the purpose forwarding address of representing with the new GT of NI+SPC+.
CNB2006101653852A 2006-12-19 2006-12-19 Global title translation device and global title's processing method Expired - Fee Related CN100563374C (en)

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PCT/CN2007/071259 WO2008074259A1 (en) 2006-12-19 2007-12-18 Global title translation device and global title processing method

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CN101257643B (en) * 2008-01-15 2010-11-03 中兴通讯股份有限公司 Method for realizing called global title transformation
CN104717575A (en) * 2013-12-11 2015-06-17 北京信威通信技术股份有限公司 Global title (GT) translation method and device

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CN1265577C (en) * 2002-05-31 2006-07-19 华为技术有限公司 Method of multipoint encoding and load sharing for transit point in number 7 signaling
CN1282376C (en) * 2004-04-30 2006-10-25 中兴通讯股份有限公司 A method for solving load sharing between signaling link groups in communication network
CN100536585C (en) * 2005-12-13 2009-09-02 华为技术有限公司 Method for realizing local point to announce an overal translating code with multiple signalling points

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