CN101754488B - Logic control class communication equipment and communication method therefor - Google Patents

Abstract

The embodiment of the invention discloses logic control class communication equipment and a communication method therefore. The communication equipment comprises N service processing units and M signaling access units, wherein N and M are natural numbers; the signaling access units messages transmitted by peripheral equipment of the logic control class communication equipment and the messages carry node identifications of the service processing units; if the messages do not carry the node identifications of the service processing units, a service processing unit is selected according to the principle of load balancing; or if the messages carry node identifications of the service processing units, then the corresponding service processing unit is selected according to the node identifications of the service processing units, which are carried by the messages; then the messages are forwarded to the selected service processing units and the selected service processing unit processes the messages. The technical proposal of the embodiment of the invention can effectively improve communication reliability. The embodiment of the invention also discloses a service processing unit and a signaling access unit.

Description

A kind of logic control class communication equipment and communication means

Technical field

The present invention relates to the communications field, relate in particular to a kind of logic control class communication equipment and communication means.

Background technology

In the communications field, along with the development of technology, require the capacity of equipment increasing, the communication equipment of especially control class; For example switch or gateway, for example: mobile switching centre (MSC, Mobile SwitchingCenter), attaching position register (HLR; Home Location Register), home subscriber server (HSS, Home Subscriber Server); Mobile management network element (MME, MobilityManagementEntity), service universal grouping wireless business supporting node (SGSN; Serving GPRS Support Node), call conversation control function entity equipment such as (CSCF, Call Session Control Function).With MSC is example, and MSC sets up the capacity that is equipped with and develops into millions of, even up to ten million from initial 100,000,200,000.It is increasing to set up the capacity that is equipped with, and the integrated level of system is increasingly high, though can save the comprehensive method of investment, in case set up when being equipped with fault, the user of influence is also more and more, and risk also increases thereupon.Therefore, to jumbo equipment, a safe and reliable scheme must be arranged, bonding equipment is just in case under the situation of makeing mistakes, can be reduced to as much as possible little degree with influence, and this scheme also can be called the disaster recovery method of communication equipment.

In the prior art, adopt the method for backup, solution sets up when breaking down fully; Influence the problem of telex network, reach the purpose that improves communication reliability, for example; Adopted N 1: 1: 1, the backup scenario of N: M; N for example: 1 is meant N communication equipment, for example at least 2, the communication equipment of a backup is set; N: M is meant N communication equipment, and M backup communication equipment is set, generally be M less than N, wherein, backup can be to back up each other, also can be the extra backup that is provided with separately.

For example, MSC is adopted backup in 1: 1, as shown in Figure 1; Be a kind of communication system sketch map of MSC disaster tolerance, this communication system comprises user (UE, User Equipment) 10; The master uses MSC11, subsequent use MSC12 and HLR13, wherein; Main also can be that subsequent use MSC12 is set separately with being to back up each other between MSC11 and the subsequent use MSC12, is used for as main backup with MSC11., UE10, mainly communicate by letter each other with HLR13 with MSC11 can operate as normal the time when main, and lead and carry out synchronously with MSC11 and subsequent use MSC12 with MSC11.Break down to work the time with MSC11 when main; Subsequent use MSC12 substitutes the master and carries out work with MSC11; Be that UE10, subsequent use MSC12 communicate by letter with HLR13 each other; Up to main when recovering normally can work with MSC11, mainly carry out synchronously with MSC11 and subsequent use MSC12, switch to UE10 then, mainly communicate by letter each other with HLR13 with MSC11.

Though above-mentioned prior art can improve the quality of communication to a certain extent, reach the purpose of disaster tolerance; Above-mentioned communication system adopts the design of backup, no matter be that alternate device is set separately, and still device backup each other; In communication process; Active and standby all needs are synchronous with equipment, so can waste Internet resources, increase the weight of the load between the synchronizer.In addition, when the host apparatus fault, when switching to stand-by equipment; Further increase the weight of the load of stand-by equipment, when especially adopting the scheme of backup each other, stand-by equipment itself is simultaneously also in the communication service of handling other; The load of stand-by equipment just more increases the weight of like this, even causes fault.

Summary of the invention

In view of this, embodiments of the invention provide a kind of logic control class communication equipment, communication means, Service Processing Unit and Signaling Access Unit, can effectively improve the reliability of communication.

A kind of logic control class communication equipment, this logic control class communication equipment comprise N Service Processing Unit and M Signaling Access Unit, and wherein, N, M are natural number;

Said Service Processing Unit is used for communicating by letter with the peripheral equipment of logic control class communication equipment through said Signaling Access Unit, receives the message that said Signaling Access Unit sends and handles;

Said Signaling Access Unit is used to receive the message that said peripheral equipment sends according to the device identification of said logic control class communication equipment; If said message is not carried the Service Processing Unit node identification; Select a Service Processing Unit according to the load balancing principle; If perhaps said message is carried the Service Processing Unit node identification; The Service Processing Unit node identification that then carries according to said message is selected the corresponding service processing unit; And with the Service Processing Unit of said forwards to this selection.

A kind of communication means is applied to comprise the logic control class communication equipment of N Service Processing Unit and M Signaling Access Unit, and wherein, N, M are natural number, and this method comprises:

Signaling Access Unit receives the message of the peripheral equipment of said logic control class communication equipment according to the device identification transmission of said logic control class communication equipment; If said message is not carried the Service Processing Unit node identification, said Signaling Access Unit is selected a Service Processing Unit according to the load balancing principle; If perhaps said message is carried the Service Processing Unit node identification, the Service Processing Unit node identification that then carries according to said message is selected the corresponding service processing unit;

Said Signaling Access Unit is with the Service Processing Unit of said forwards to this selection.

A kind of Signaling Access Unit, this Signaling Access Unit and at least one Service Processing Unit constitute the logic control class communication equipment, and this Signaling Access Unit comprises:

Receiver module is used to receive the message of the peripheral equipment of said logic control class communication equipment according to the device identification transmission of said logic control class communication equipment;

Select module; Carry the Service Processing Unit node identification if be used for said message; The Service Processing Unit node identification that carries according to said message; Select the corresponding service processing unit, if perhaps said message is not carried the Service Processing Unit node identification, according to the Service Processing Unit of one of load balancing principle selection;

Sending module is used for said forwards to selected said Service Processing Unit.

A kind of Service Processing Unit, this Service Processing Unit and at least one Signaling Access Unit constitute the logic control class communication equipment, and this Service Processing Unit comprises:

Receiver module; Be used to receive the message that Signaling Access Unit is transmitted; Wherein, This message sends to Signaling Access Unit by the peripheral equipment of said logic control class communication equipment according to the device identification of said logic control class communication equipment, and the Service Processing Unit node identification that carried according to said message by Signaling Access Unit or transmit according to the load balancing principle;

Increase module, be used for the node identification of said Service Processing Unit is joined the message that need send to Signaling Access Unit;

Sending module is used for the message of carrying said node identification is sent to said Signaling Access Unit.

Compared with prior art, the technical scheme that embodiments of the invention provide is because when communicating deployed with devices; Adopt the distributed deployment mode; In the inside of logic control class communication equipment, carry out route control by Signaling Access Unit, can effectively improve the reliability of communication.

Description of drawings

Fig. 1 is the communication system sketch map of a kind of MSC disaster tolerance of prior art;

Fig. 2 is the sketch map of the communication system 20 of a kind of communication equipment distributed deployment of the embodiment of the invention;

Fig. 3 is the sketch map of a kind of communication system 30 of the embodiment of the invention;

Fig. 4 is the schematic flow sheet of a kind of user registering method 40 of the embodiment of the invention;

Fig. 5 is the schematic flow sheet that a kind of user of the embodiment of the invention initiates calling service method 50;

Fig. 6 is the schematic flow sheet of a kind of user's called service method 60 of the embodiment of the invention;

Fig. 7 is the schematic flow sheet of a kind of MSC changing method 70 of the embodiment of the invention;

Fig. 8 is the system architecture sketch map of a kind of 3GPP evolvement network of the embodiment of the invention;

Fig. 9 is the structural representation of a kind of logic control class communication equipment 51 of the embodiment of the invention;

Figure 10 is a kind of logic control class communication equipment 61 structural representations of the embodiment of the invention.

Embodiment

Below in conjunction with accompanying drawing a kind of packet domain of the embodiment of the invention and the synchronous method and system of circuit domain positional information are described in detail.

As shown in Figure 2, be the sketch map of the communication system 20 of a kind of communication equipment distributed deployment of the embodiment of the invention.This communication system 20 can be present any communication system or next generation communication system; Global system for mobile communications (GSM, Global System for Mobile communications) for example, GPRS (GPRS; General Packet Radio Service) system; WCDMA (WCDMA, Wideband Code Division Multiple Access) system and code division multiple access insert (CDMA, Code Division Multiple Access) system; Next generation network (NGN, NextGeneration Network) etc.This communication system 20 can comprise one or more logic control class communication equipments 201, and this logic control class communication equipment 201 further comprises at least one Service Processing Unit (SPU, Service Process Unit), for example N Service Processing Unit; Also can be called service processing node, for example processing unit 21,23,25 ..., N, and at least one Signaling Access Unit (SAU; SignalingAccess Unit), for example M Signaling Access Unit also can be called the signaling distribution node; For example Signaling Access Unit 22,24 ..., M, wherein, N; M is natural number, and generally speaking, M is less than N; Certainly, might not correlate between N and the M, can be respectively arbitrary value.

Communication equipment in the logic control class communication equipment 201 adopts the distributed deployment mode, and service processing function is separated with the route controlled function, and each Service Processing Unit can be any communication equipment of communication network with each Signaling Access Unit; For example; Can be moving exchanging center MSC, mobile management network element MME, service universal grouping wireless business supporting node SGSN; Attaching position register HLR; Home subscriber server HSS or call conversation control function entity CSCF etc., each Service Processing Unit also can be a kind of new traffic equipment with each Signaling Access Unit, Service Processing Unit has the service processing function of this control type communication equipment; Signaling Access Unit has the route controlled function of this control type communication equipment; After N Service Processing Unit and M Signaling Access Unit make up, externally be rendered as a logic control class communication equipment 201, promptly logic control class communication equipment 201 can be the logic moving exchanging center MSC; Logic mobile management network element MME; Logical services universal grouping wireless business supporting node SGSN, logic attaching position register HLR, logic home subscriber server HSS or logic call conversation control function entity CSCF etc.The formation that the inside of logic control class communication equipment 201 is disposed can be described below.

Said Service Processing Unit and said Signaling Access Unit are first communication equipment of network side, constitute a network side first logic control class communication equipment in logic after N said first communication equipment and M said first communication equipment combination; Perhaps; Said Service Processing Unit is first communication equipment of network side; Said Signaling Access Unit is the second communication equipment with this first communication equipment route controlled function, constitutes a network side first logic control class communication equipment in logic after N said first communication equipment and M said second communication equipment combination; Perhaps; Said Service Processing Unit is the third communication equipment with first communication equipment service processing function; Said Signaling Access Unit is the four-way letter equipment with this first communication equipment route controlled function, constitutes a network side first logic control class communication equipment in logic after N said third communication equipment and M said four-way letter equipment combination.

For example; With MSC is example; Each Service Processing Unit can be MSC with each Signaling Access Unit, and each Service Processing Unit has the service processing function of MSC, and each Signaling Access Unit has the route controlled function of MSC; After N MSC and M MSC combination, externally be rendered as a logic MSC.Or; When each Service Processing Unit can be MSC; Each Signaling Access Unit can be a kind of new traffic equipment, and each Service Processing Unit has the service processing function of MSC, and each Signaling Access Unit has the route controlled function of MSC; After N MSC and the combination of M new traffic equipment, can externally be rendered as a logic MSC.Or; When each Service Processing Unit and each Signaling Access Unit can be new traffic equipment; Each Service Processing Unit has the service processing function of MSC; Each Signaling Access Unit has the route controlled function of MSC, after N new traffic equipment and the combination of M new traffic equipment, can externally be rendered as a logic MSC.

Equally, to other communication equipment, for example: MME, SGSN, HLR, HSS or CSCF etc. also can carry out identical distributed deployment.

Totally interconnected between Signaling Access Unit and the processing unit, can totally interconnectedly can not connect between the Signaling Access Unit yet, can totally interconnectedly can not connect between the processing unit yet.Each Service Processing Unit can be distributed in different geographic areas, also can be arranged on same zone by one or several Service Processing Unit.Equally, each Signaling Access Unit can be distributed in different geographic areas, also can be arranged on same zone by one or several Signaling Access Unit.

As shown in Figure 2, logic control class communication equipment 201 can provide a device identification, also at least two device identifications can be provided, or according to the quantity of M Signaling Access Unit M device identification is provided, and this device identification is provided by Signaling Access Unit.For example, when logic control class communication equipment 201 provided a device identification, all Signaling Access Units had this identical device identification; Or; When logic control class communication equipment 201 provides at least two each and every one device identifications; One or part Signaling Access Unit are distributed in a device identification, another or another part Signaling Access Unit are distributed in another device identification, up to device identification is distributed fully; Perhaps, when logic control class communication equipment 201 provides M device identification according to the quantity of M Signaling Access Unit, different Signaling Access Units has mutually different device identification.If logic control class communication equipment 201 is to carry out route with the mode of IP address and port, Signaling Access Unit also can adopt identical IP address, different IP port numbers.

Logic control class communication equipment 201 is communicated by letter with its peripheral equipment through its device identification, and promptly Signaling Access Unit is communicated by letter with the peripheral equipment of logic control class communication equipment 201 through the device identification of logic control class communication equipment 201.

The message of all turnover logic control class communication equipments 201 is all carried out route control through Signaling Access Unit; Each Service Processing Unit distributes a node identification; Said node identification is the sign that is used for the differentiated service processing unit, and the node routing relation table between Service Processing Unit and the node identification is set up and preserved to Signaling Access Unit.A Service Processing Unit also can distribute a plurality of node identifications, but a node identification can only be distributed to a Service Processing Unit.A Service Processing Unit distributes still a plurality of node identifications, and know-why is similar, and hereinafter is that example describes to distribute a node identification.

As far as certain Signaling Access Unit, can carry out route through the device identification of logic control class communication equipment 201; As far as certain Service Processing Unit; Can add that the node identification of this Service Processing Unit carries out route through the device identification of logic control class communication equipment 201; Therefore, the message of entering logic control class communication equipment 201 can be properly routed to the corresponding service processing unit.And; Because the Service Processing Unit in the logic control class communication equipment 201 is to communicate by letter with peripheral equipment through the device identification of logic control class communication equipment 201 with Signaling Access Unit; So; Behind the Service Processing Unit and Signaling Access Unit distributed deployment in the logic control class communication equipment 201, do not influence the communication of peripheral equipment.And; Because when each Service Processing Unit is communicated by letter with the peripheral equipment of logic control class communication equipment 201; Because what appear is the device identification of logic control class communication equipment 201; Just be rendered as a logic control class communication equipment 201, and do not need the node identification of each Service Processing Unit to communicate, so can save signaling consumption and/or link overhead in a large number.

When the communication equipment in the logic control class communication equipment 201 carries out distributed deployment; Control separates with route because with Business Processing; Carry out with the device identification of logic control class communication equipment 201 with communicating by letter of peripheral equipment,, carry out route control by Signaling Access Unit in the inside of logic control class communication equipment 201; So can effectively improve the reliability of communication, the communication risk when reducing Service Processing Unit appearance overload or fault.

For example, the device identification of logic control class communication equipment 201 can be signalling point sign, GT sign indicating number or IP address etc.For example; The device identification that 201 pairs of peripheral equipments of logic control class communication equipment provide is a signalling point sign aa; Then after Service Processing Unit in logic control class communication equipment 201 and the Signaling Access Unit distributed deployment, the signalling point of each Signaling Access Unit is designated aa; The device identification that provides when 201 pairs of peripheral equipments of logic control class communication equipment is signalling point sign aa; Bb; Then after Service Processing Unit in logic control class communication equipment 201 and the Signaling Access Unit distributed deployment; The signalling point sign of a Signaling Access Unit can be aa, and the signalling point sign of another Signaling Access Unit can be bb.

The device identification that provides when 20 pairs of peripheral equipments of logic control class communication equipment is GT sign indicating number 13800 (a GT:Global Title global title); After Service Processing Unit in logic control class communication equipment 201 and the Signaling Access Unit distributed deployment, the signalling point of each Signaling Access Unit is designated GT sign indicating number 13800.

If the device identification that 201 pairs of peripheral equipments of logic control class communication equipment provide is IP address and port, then Signaling Access Unit also can adopt identical IP address, and different IP port numbers are carried out route.

Like this; Service Processing Unit and Signaling Access Unit distributed deployment in the logic control class communication equipment 201 are sightless to peripheral equipment; Peripheral equipment need not to develop the distributed deployment of new function or new features ability adaptation, logic control type communication equipment 201, can guarantee distributed schemes enforcement fast in communication network.

For example, as shown in table 1, the node identification of Service Processing Unit 21 is 1, the node identification of Service Processing Unit 23 is 2, the node identification of Service Processing Unit 25 is 3 ..., the node identification of Service Processing Unit N is N.Simultaneously; Each Service Processing Unit all has physical label; Like IP address etc.; With the IP address is example, for example the IP address of Service Processing Unit 21 be the IP address of IP1, Service Processing Unit 23 be the IP address of IP2, Service Processing Unit 25 be IP3 ..., the IP address of Service Processing Unit N is IPn, the device identification that 201 pairs of peripheral equipments of logic control class communication equipment provide is signalling point sign aa and/or GT sign indicating number 13800; One, wherein set up on several or each Signaling Access Unit and preserve the node routing relation table between Service Processing Unit and the node identification, as shown in table 1.

Table 1 node routing relation table

Nodename	Node identification	The IP address
			Service Processing Unit 21	1	IP?1(192.168.10.11)
Service Processing Unit 23	2	IP?2(192.168.10.12)
			Service Processing Unit 25	3	IP?1(192.168.10.13)
...	...	...
			Service Processing Unit N	N	IP?n (192.168.10.1x)

Logic control class communication equipment 201 is provided by Signaling Access Unit with the device identification of peripheral equipment intercommunication; Peripheral equipment arrives logic control class communication equipment 201, i.e. logic control class communication equipment 201 Signaling Access Unit according to the device identification of this logic control class communication equipment 201 with transmission of messages.This Signaling Access Unit is used to receive the message that said peripheral equipment sends; If carry the Service Processing Unit node identification in the said message; Select a Service Processing Unit then, the Service Processing Unit node identification that for example carries according to message is selected the corresponding service processing unit; Perhaps, if said message is not carried the Service Processing Unit node identification, select a Service Processing Unit according to the load balancing principle.For example; This Signaling Access Unit calculate the pairing Service Processing Unit of message in preload and/or said computational logic control type communication equipment other Service Processing Units work as preload; And load balancing principle; Select the Service Processing Unit of a coupling, for example, select the lightest Service Processing Unit of load.After this Signaling Access Unit is selected a Service Processing Unit; Forwards is handled to the Service Processing Unit of selecting; For example; Signaling Access Unit is handled forwards according to the node routing relation table between Service Processing Unit and the node identification to the Service Processing Unit of selecting.

If all Signaling Access Units provide identical device identification; For example identical signalling point sign; Or identical GT sign indicating number, then peripheral equipment is distributed to message on the Signaling Access Unit of a coupling according to the principle of load balancing, and the load balancing algorithm includes but not limited to following several kinds.

1), random distribution is given a Signaling Access Unit.

2), according to the current load condition distribution of each Signaling Access Unit, be distributed to when the lightest Signaling Access Unit of preload, this algorithm needs to set up between peripheral equipment and the Signaling Access Unit dynamic load informing mechanism.

3); Algorithm distribution according to static configuration; As the distribution ratio that disposes between each Signaling Access Unit is 1: 2, and peripheral equipment for example has 75 user's register requirement just according to this ratio dispatch user; Then peripheral equipment divides 24 user's register requirement to give Signaling Access Unit 22, divides 50 user's register requirement to give Signaling Access Unit 24.

4); Algorithm distribution according to static configuration; As dispose international mobile subscriber identity (IMSI, International Mobile Subscriber Identity) number section be 000-299 give Signaling Access Unit 22, the IMSI section be 300-699 give Signaling Access Unit 24.When peripheral equipment is received business request information, do algorithm according to user's IMSI information and obtain its IMSI section, give corresponding Signaling Access Unit according to the interval route of its number section again.

Logic control class communication equipment 201 also can provide many device identifications, for example, and the multiple signaling points sign; For example, signalling point sign aa, bb are provided simultaneously, different Signaling Access Units can have different signalling point signs; Peripheral equipment both can be according to different signalling point signs; Also can message be distributed on the corresponding Signaling Access Unit, adopt the multiple signaling points sign, the risk of the Single Point of Faliure that causes in the time of can reducing by a Signaling Access Unit fault according to the principle of load balancing.

If the device identification that logic control class communication equipment 201 provides is IP address and port; Different Signaling Access Units can have identical IP address and different port number; Peripheral equipment both can also can be distributed to message on the corresponding Signaling Access Unit according to the principle of load balancing according to identical IP address and different port number.

Service Processing Unit in the logic control class communication equipment 201 is mutual through Signaling Access Unit and peripheral equipment, is to carry out route through the device identification of logic control class communication equipment 201 and the node identification of this Service Processing Unit.

For example; Service Processing Unit 21 is to Signaling Access Unit; For example Signaling Access Unit 22, and the message of transmission is carried the device identification of peripheral equipment and the node identification of Service Processing Unit 21, the device identification of the peripheral equipment that Signaling Access Unit 22 carries according to this message; Give corresponding peripheral equipment with this forwards, and carry the device identification of logic control class communication equipment 201, the node identification of Service Processing Unit 21.

When this Service Processing Unit 21 needed to receive the message of this peripheral equipment, its process was that when peripheral equipment sent message, this message was carried the device identification of logic control class communication equipment 201, the node identification of Service Processing Unit 21.If the device identification of the logic control class communication equipment 201 that each Signaling Access Unit provides has nothing in common with each other; Then peripheral equipment can be according to the device identification of the entrained logic control class communication equipment 201 of this message or according to the principle of load balancing; This message is routed to a corresponding Signaling Access Unit of logic control class communication equipment 201, for example is routed to Signaling Access Unit 22.If the device identification of the logic control class communication equipment 201 that each Signaling Access Unit provides is identical; Then peripheral equipment can be according to the device identification of the entrained logic control class communication equipment 201 of this message and the principle of load balancing; This message is routed to a corresponding Signaling Access Unit of logic control class communication equipment 201, for example is routed to Signaling Access Unit 22.

Receive the Signaling Access Unit of message, for example Signaling Access Unit 22, from this message, parse the node identification of Service Processing Unit 21, and the node identification according to this Service Processing Unit 21 is properly routed to Service Processing Unit 21 with the message that is received.

After Signaling Access Unit receives the message of peripheral equipment transmission; For reducing the load of each Service Processing Unit; Also can message be issued one of them Service Processing Unit and handle, especially when node identification pairing Service Processing Unit appearance of negative loading or overload, for example according to the principle of load balancing; Meet or exceed the load threshold value of setting; Or when breaking down, Signaling Access Unit can be handled according to the Service Processing Unit that the principle of load balancing is issued other with message, and the load balancing algorithm includes but not limited to following several kinds.

1), random distribution is given a Service Processing Unit.

2), according to the current load condition distribution of each Service Processing Unit, be distributed to when the lightest Service Processing Unit of preload, this algorithm needs to set up between Service Processing Unit and the Signaling Access Unit dynamic load informing mechanism.

3); According to the distribution of the algorithm of static configuration, as the distribution ratio that disposes between each Service Processing Unit is 1: 2: 1, and Signaling Access Unit is just according to this ratio dispatch user; 100 user's register requirement are for example arranged; Then giving Service Processing Unit 21 has 25, and Service Processing Unit 23 has 50, and Service Processing Unit 25 has 25.

4); Algorithm distribution according to static configuration; As dispose international mobile subscriber identity (IMSI; International Mobile Subscriber Identity) number section be 000-299 give Service Processing Unit 21, the IMSI section be 300-699 give Service Processing Unit 23, the IMSI section be 700-999 give Service Processing Unit 25.When Signaling Access Unit is received request message, do algorithm according to user's IMSI information and obtain its IMSI section, give the corresponding service processing unit according to the interval route of its number section.

For example; When Service Processing Unit 21 appearance of negative loadings or overload; For example, meet or exceed the load threshold value of setting, or when breaking down; When Signaling Access Unit receives the message of the node identification that contains Service Processing Unit 21, can this message be distributed to other Service Processing Units in the logic control class communication equipment 201 according to the principle of load balancing.For example, Signaling Access Unit 22 receives a register requirement, and this register requirement is carried the node identification of Service Processing Unit 21; But Signaling Access Unit 22 is found after this Service Processing Unit 21 sends register requirement; Never obtain the response of Service Processing Unit 21, thus, Signaling Access Unit 22 is judged these Service Processing Unit 21 faults; At this moment; This Signaling Access Unit 22 can send to other Service Processing Unit in the logic control class communication equipment 201 with this register requirement according to above-mentioned load balancing algorithm, and for example Service Processing Unit 23.

Can know through foregoing description; Because Signaling Access Unit can be according to the load balancing principle; Message is distributed to each Service Processing Unit of logic control class communication equipment 201; So can reduce the communication load of each Service Processing Unit, improve communication quality and/or reliability, be difficult for causing certain single-point Service Processing Unit owing to overload produces fault.When even professional corresponding service processing unit breaks down; Signaling Access Unit still can be according to the load balancing principle; Message is distributed to other each Service Processing Units of logic control class communication equipment 201, and then improves communication quality and/or reliability, reach the purpose of disaster tolerance.

Hereinafter is explained various communication equipments under various scenes, the application process of the embodiment of the invention through embodiment.

As shown in Figure 3, be example with MSC, be the sketch map of a kind of communication system 30 of the embodiment of the invention.This communication system comprises UE31, BTS32, BSC33; Logic MSC34 and HLR35, wherein, UE31 communicates by letter through the Um Interface of eating dishes without rice or wine with BTS32; BTS32 communicates by letter through Abis interface with BSC33, and BSC33 and logic MSC34 are through the A interface communication, and logic MSC34 communicates by letter through C interface with HLR35.

Logic MSC34 can comprise a plurality of MSC, five MSC for example, and wherein three MSC are as Service Processing Unit, and for example Service Processing Unit 301,303,305; Remaining two MSC are as Signaling Access Unit.For example Signaling Access Unit 302,304.Logic MSC34 also can adopt the method among the related embodiment of Fig. 2 to dispose formation, as long as constitute a logic MSC34.

Signaling Access Unit 302,304 all and Service Processing Unit 301,303, totally interconnected between 305; Signaling Access Unit 302, can be totally interconnected between 304 can not connect, Service Processing Unit 301,303,305 can totally interconnectedly can not connect yet yet.Each Service Processing Unit can be distributed in different geographic areas, also can be arranged on same zone by one or several Service Processing Unit.

Each Service Processing Unit is assigned with different nodes sign, and for example, the node identification of Service Processing Unit 301 is 1, and the node identification of Service Processing Unit 303 is 2, the node identification of Service Processing Unit 305 is 3.Simultaneously; Each Service Processing Unit can also have physical label, and like IP address etc., for example the IP address of Service Processing Unit 301 is that the IP address of IP1, Service Processing Unit 303 is that the IP address of IP2, Service Processing Unit 305 is IP3; The signalling point that logic MSC34 externally provides is designated aa; The GT sign indicating number is 13800, and for example the signalling point that externally provides of Signaling Access Unit 302,304 is designated aa, and the GT sign indicating number is 13800; On Signaling Access Unit 302 and/or Signaling Access Unit 304, set up node routing relation table, can be as shown in table 2.

Table 2 node routing relation table

Nodename	Node identification	The IP address
			Service Processing Unit 301	1	IP?1(192.168.10.11)
Service Processing Unit 303	2	IP?2(192.168.10.12)
			Service Processing Unit 305	3	IP?1(192.168.10.13)

The MSC of above-mentioned communication system 30 by distributed deployment after, can be in the miscellaneous service processing procedure, reduce the communication load of MSC; Improve communication quality and/or reliability; For example hereinafter passes through registration process, the caller process, and called process and handoff procedure are described in detail.

For example, as shown in Figure 4, be the schematic flow sheet of a kind of user registering method 40 of the embodiment of the invention, in conjunction with Fig. 3, its user registering method 40 can be described below.

Formation and the method for attachment of logic MSC in the corresponding communication system of this user registering method 40 can be with reference to the related embodiment of figure 3, and; In the present embodiment, Service Processing Unit is called MSC/SPU, Signaling Access Unit is called MSC/SAU; In fact; Can be the MSC in the communication system, but after these a plurality of MSC/SPU and this a plurality of MSC/SAU combinations, externally be rendered as a logic MSC; Be that logic MSC uses its device identification and the outer peripheral equipment of logic MSC to communicate; And a plurality of MSC/SPU in the logic MSC distinguish through node identification, and a plurality of MSC/SAU both can distinguish through signaling sign, also can use an above-mentioned device identification and do not distinguish.

To providing serving base station BTS to send register requirement, this register requirement is carried ID IMSI to user UE through the Um Interface of eating dishes without rice or wine, this BTS through Abis interface to providing serving base station controller BSC to transmit this register requirement.

After BSC receives register requirement; The device identification of the logic MSC that BSC preserves during according to network configuration; Through the A interface this register requirement is transmitted to logic MSC; And send signaling connection control protocol (SCCP, Signaling Connection Control Part) to logic MSC and connect the request of foundation, set up BSC with request and be connected with SCCP between the logic MSC.The node identification of MSC/SPU is carried in this register requirement and/or the connection request of setting up.Because the device identification of logic MSC provides through Signaling Access Unit MSC/SAU; Promptly MSC provides; So BSC is actually and through the A interface this register requirement is connected the request of setting up with SCCP and sends to a Signaling Access Unit MSC/SAU, and is specific as follows said.

If BSC connects a plurality of MSC/SAU; And a plurality of MSC/SAU have identical signalling point sign; Be that logic MSC has a device identification, for example, all adopt signalling point sign aa; Then BSC is deployed to respectively on the different SAU to the signaling link of MSC/SAU; BSC is connected the request of foundation according to the balanced principle of link load with above-mentioned register requirement and sends on the MSC/SAU with SCCP, the algorithm of the load balancing that the algorithm of this load balancing and hereinafter are related specifically all can be with reference to the algorithm of the related load balancing of figure 2 embodiment.

If BSC connects a plurality of MSC/SAU; And each MSC/SAU has different signalling point signs, and promptly logic MSC has a plurality of device identifications, for example; Communication system 30 with Fig. 3 is an example; Signaling Access Unit 302, Signaling Access Unit 304 adopt signalling point sign aa respectively, bb, and then BSC33 is connected foundation according to signalling point sign or the balanced principle of routing load with above-mentioned register requirement and asks to send on the Signaling Access Unit with SCCP.

After this association Signaling Access Unit MSC/SAU receives that above-mentioned register requirement is connected the request of foundation with SCCP; Select a corresponding service processing unit MSC/SPU; For example can connect the entrained Service Processing Unit node identification of the request of foundation according to this register requirement and/or SCCP; Select a corresponding service processing unit MSC/SPU; Perhaps select the Service Processing Unit MSC/SPU of a coupling, send SCCP to the Service Processing Unit MSC/SPU of this selection then and connect the request of foundation according to the principle of load balancing.In addition, when adopting the algorithm distribution of static configuration,, need to adopt the placement algorithm of TMSI section if MSC does not support or do not open temporary mobile subscriber identity (TMSI, Temporary Mobile Subscriber Identity) to weigh distribution function.

For example; Communication system 30 with Fig. 3 is an example; Signaling Access Unit 302 receives that above-mentioned register requirement is connected the request of foundation with SCCP, as connecting the entrained Service Processing Unit node identification of the request of foundation according to this register requirement and/or SCCP, selects a corresponding service processing unit; For example Service Processing Unit 301; Perhaps select the Service Processing Unit of a coupling according to the principle of load balancing, for example Service Processing Unit 301, transmit SCCP to Service Processing Unit 301 then and connect the request of foundation.

After MSC/SPU receives that SCCP connects the request of foundation; Distribute local SCCP to connect reference number; This MSC/SPU adds this MSC/SPU node identification when distributing local SCCP to connect reference number; And returning the SCCP connection establishment response to MSC/SAU, this SCCP connection establishment response carries this MSC/SPU node identification.For example; Communication system 30 with Fig. 3 is an example; After Service Processing Unit 301 receives that SCCP connects the request of foundation; Service Processing Unit 301 adds the node identification 1 of this Service Processing Unit 301 when distributing local SCCP to connect reference number, and returns the SCCP connection establishment response to Signaling Access Unit 302, and this SCCP connection establishment response carries the node identification 1 of this Service Processing Unit 301.

SCCP connects reference number and comprises source reference number (Source Local Reference) and the local reference number (Destination Local Reference) of purpose.MSC/SPU receives that the SCCP of BSC connects and sets up in the request message that BSC has distributed the SCCP of BSC side to connect reference number, i.e. source reference number, and the SCCP connection reference number that the local reference number of its purpose is the MSC side is empty, is distributed by MSC/SPU.When MSC/SPU distributes local SCCP to connect reference number, itself node identification is joined this SCCP as the local reference number of purpose connect reference number.

SCCP connect increase the MSC/SPU node identification in the reference number method can for: the length that SCCP connects reference number is 3byte, and 24bit can define wherein several bit and carry the MSC/SPU node identification altogether.For example, define 8bit and carry the MSC/SPU node identification to 11bit.For example, be example with the communication system 30 of Fig. 3, the SCCP that Service Processing Unit 301 distributes connects reference number, and its 8bit-11bit distributes can be 0001; The SCCP that Service Processing Unit 303 distributes connects reference number, and its 8bit-11bit distributes can be 0010; The SCCP that Service Processing Unit 305 distributes connects reference number, and its 8bit-11bit distributes can 0011.

MSC/SAU is transmitted to BSC with the SCCP connection establishment response of receiving, this SCCP connection establishment response carries this MSC/SPU node identification, and then BSC sets up SCCP through MSC/SAU and MSC/SPU and is connected.For example; Communication system 30 with Fig. 3 is an example; Signaling Access Unit 302 is transmitted to BSC33 with the SCCP connection establishment response of receiving; This SCCP connection establishment response carries the node identification 1 of this Service Processing Unit 301, and then Service Processing Unit 301 is set up SCCP through Signaling Access Unit 302 with BSC33 and is connected.

BSC sends to the message of MSC/SPU.After MSC/SAU receives this message, select the Service Processing Unit of a coupling according to the principle of load balancing.Perhaps, if carry the MSC/SPU node identification in this message, the MSC/SPU node identification that MSC/SAU can connect in the reference number according to the node routing relation table and the SCCP of its preservation carries out route; Be routed to the pairing MSC/SPU of MSC/SPU node identification; Wherein, if this MSC/SAU does not preserve node routing relation table, but preserve at other MSC/SAU; Then this MSC/SAU need be connected with other MSC/SAU, preserves node routing relation table through obtaining alternately.For example, be example with the communication system 30 of Fig. 3, BSC33 sends to the message of Service Processing Unit 301, selects the Service Processing Unit of a coupling by Signaling Access Unit 302 according to the principle of load balancing, and for example Service Processing Unit 301, carry out route then.Perhaps, Signaling Access Unit 302 carries out route according to the node routing relation table of table 2 and the node identification of the Service Processing Unit 301 in the SCCP connection reference number, is routed to Service Processing Unit 301.

MSC/SPU for set up and HLR between MAP (MAP, Mobile ApplicationPart) dialogue, MSC/SPU sends to the position updating request of HLR to MSC/SAU, this position updating request is carried the MSC/SPU node identification.Add the MSC/SPU node identification in the MAP dialogue reference number that MSC/SPU distributes, this adding method is connected the method that adds the MSC/SPU node identification in the reference number with above-mentioned distribution SCCP can be similar.

MSC/SAU transmits this position updating request according to ID IMSI to HLR, and this position updating request is carried the GT sign indicating number 13800 of MSC/SPU node identification and logic MSC.

For example, MSC/SAU carries the GT sign indicating number of logic MSC in the location update request message that HLR sends, and in the GT sign indicating number, increases the MSC/SPU node identification.For example; Communication system 30 with Fig. 3 is an example, if the GT sign indicating number of logic MSC34 is 13800, then the GT sign indicating number of Service Processing Unit 301 is 138001; The GT sign indicating number of Service Processing Unit 303 is 138002; The GT sign indicating number of Service Processing Unit 305 is 138003, and when Service Processing Unit 301 communicated with HLR35 through Signaling Access Unit 302, the GT sign indicating number that Signaling Access Unit 302 carries in the location update request message that HLR35 sends was 138001.

HLR returns response message according to GT sign indicating number 13800 to MSC/SAU, and in MAP dialogue reference number, adds the MSC/SPU node identification, and promptly response message is carried the MSC/SPU node identification.HLR is a Signaling Access Unit that response message is routed to logic MSC according to GT sign indicating number 13800; The GT sign indicating number 13800 of logic MSC does not change; Though on the GT sign indicating number, increase the MSC/SPU node identification, can not influence the route of HLR to logic MSC, HLR still carries out route with 13800.

The MSC/SPU information of the current ownership of recording user in HLR, record be the GT sign indicating number 13800x of MSC/SPU, for example: 138001,138002,138003, the MSC/SPU node identification of increase is sightless to HLR, does not influence the processing procedure of HLR.

After MSC/SAU receives response message, carry out route, response message is routed to the pairing MSC/SPU of MSC/SPU node identification according to the node routing relation table and the entrained MSC/SPU node identification of response message of its preservation.For example; Communication system 30 with Fig. 3 is an example; The response message that HLR35 sends carries out route by Signaling Access Unit 302 according to the node identification of the entrained Service Processing Unit 301 of the node routing relation table of table 2 and response message, is routed to Service Processing Unit 301.

After MSC/SPU received this response message, MSC/SPU set up the MAP dialogue through MSC/SAU and HLR, and MSC/SPU and HLR accomplish user profile in the MAP dialogue of setting up mutual, and MSC/SPU confirms position renewal acceptance through MSC/SAU and HLR.In reciprocal process, need MSC/SAU according to the node routing relation table of its preservation and the MSC/SPU node identification in the MAP dialogue reference number, route messages to corresponding MSC/SPU and handle.

MSC/SPU receives information to the BSC request of sending through MSC/SAU again, and BSC receives information this request and is transmitted to user UE, and through this reciprocal process, MSC/SPU and user UE accomplish registration and confirm.In the reciprocal process, need MSC/SAU, handle to corresponding MSC/SPU the message route according to the MSC/SPU node identification in the SCCP connection reference number and the node routing relation table of table 2.

In MSC/SPU, insert the user profile from HLR, obtain, the MSC/SPU information of the current ownership of recording user in HLR, record be the GT sign indicating number 13800x of MSC/SPU, for example: 138001,138002,138003.Wherein, the MSC/SPU node identification of increase is sightless to HLR, does not influence the processing procedure of HLR.

Can know that according to above-mentioned description MSC/SPU is connected the registration process of accomplishing user with BSC at the SCCP that sets up through MSC/SAU.

MSC/SAU need connect the SPU node identification in the reference number according to the node routing relation table and the SCCP of its preservation, routes messages to corresponding MSC/SPU and handles.Be after MSC/SAU receives the message of BSC, need connect from SCCP and parse the MSC/SPU node identification the reference number.Issue the message of BSC from MSC/SPU, MSC/SAU need carry out route according to the node routing relation table and the SPU node identification of its preservation.

MSC/SPU will carry the MSC/SPU node identification in TMSI in distribution T MSI flow process.The length of TMSI is 4byte, and 32bit can define wherein several bit and carry the MSC/SPU node identification altogether.For example, define 8bit and carry the MSC/SPU node identification to 11bit.For example, the communication system 30 related with Fig. 3 embodiment is example, the TMSI that Service Processing Unit 301 distributes, and what its 8bit-11bit distributed can be 0001; The TMSI that Service Processing Unit 303 distributes, what its 8bit-11bit distributed can be 0002; The TMSI that Service Processing Unit 305 distributes, what its 8bit-11bit distributed can be 0011.

Therefore, in register flow path, because MSC/SPU is when communicating by letter with HLR and BSC through MSC/SAU, what externally appear is a GT sign indicating number 13800, i.e. the GT sign indicating number 13800 of logic MSC is so can practice thrift information and/or link overhead.And MSC/SAU can register professional distribution according to the load balancing principle; Select appropriate MSC/SPU, thus the communication load of each MSC/SPU reduced, and then improve communication quality and/or reliability; Even when registering loading of professional pairing MSC/SPU appearance of negative or overload, for example, meet or exceed the load threshold value of setting; Or when breaking down, also can the registration distribution of services be registered to other MSC/SPU among the logic MSC.

As shown in Figure 5, be the schematic flow sheet that a kind of user of the embodiment of the invention initiates calling service method 50, the process that its user initiates calling service method 50 can be described below.

This user initiates formation and the method for attachment of logic MSC in the corresponding communication system of calling service method 50; Can be with reference to the related embodiment of figure 3; After a plurality of MSC/SPU make up with these a plurality of MSC/SAU; Externally be rendered as a logic MSC, promptly logic MSC uses its device identification and the outer peripheral equipment of logic MSC to communicate, and a plurality of MSC/SPU in the logic MSC distinguish through node identification; A plurality of MSC/SAU both can distinguish through sign, also can use an above-mentioned device identification and did not distinguish.

To providing serving base station BTS to send the calling service request, ID IMSI is carried in this calling service request to user UE through the Um Interface of eating dishes without rice or wine, this BTS through Abis interface to providing serving base station controller BSC to transmit this calling service request.

After BSC receives the calling service request; The device identification of the logic MSC that BSC preserves during according to network configuration; Through the A interface this calling service request is transmitted to logic MSC, and sends SCCP to logic MSC and connect the request of foundation, set up BSC with request and be connected with SCCP between the logic MSC.This calling service request and/or SCCP connect the request of foundation can also carry the Service Processing Unit node identification.Because the device identification of logic MSC provides through Signaling Access Unit MSC/SAU; Promptly MSC provides; So BSC is actually and through the A interface this calling service request is connected the request of setting up with SCCP and sends to a Signaling Access Unit MSC/SAU, and is specific as follows said.

If BSC connects a plurality of MSC/SAU; And a plurality of MSC/SAU have identical signalling point sign; Be that logic MSC has a device identification, for example, all adopt signalling point sign aa; Then BSC is deployed to respectively on the different SAU to the signaling link of MSC, and BSC is connected the request of foundation according to the balanced principle of link load with above-mentioned calling service request and sends on the MSC/SAU with SCCP.

If BSC connects a plurality of MSC/SAU; And each MSC/SAU has different signalling point signs; Be that logic MSC has a plurality of device identifications, then BSC is connected foundation according to signalling point sign or the balanced principle of routing load with above-mentioned calling service request and asks to send on the Signaling Access Unit with SCCP.

After this MSC/SAU receives that above-mentioned calling service request is connected the request of foundation with SCCP; Select the MSC/SPU of a coupling according to the principle of load balancing; Perhaps connect the entrained MSC/SPU node identification of the request of foundation, select the MSC/SPU of a correspondence according to calling service request and/or SCCP.Then, when this MSC/SAU registered according to this user UE, the node routing relation table that MSC/SAU preserves was connected the MSC/SPU node that the request of foundation sends to selection with this calling service request with SCCP.

If communication system is opened the heavy distribution function of TMSI; Then MSC/SAU can obtain the MSC/SPU node identification from the TMSI of calling service request; The node routing relation table of its preservation of MSC/SAU is connected the MSC/SPU that the request of foundation sends to user UE registration with this calling service request with SCCP.

If the heavy distribution function of TMSI is not opened or do not supported to communication system, then MSC/SAU need carry out route according to the IMSI segment information of configuration.Under this scene, require registration process also to adopt the IMSI segment information to carry out route, guarantee the user register with calling service in same SPU node processing.

MSC/SAU can also send the calling service request according to the Service Processing Unit MSC/SPU of principle in logic MSC of load balancing and be connected the request of foundation with SCCP.Perhaps; When calling service request pairing MSC/SPU appearance of negative loading or overload; For example; Meet or exceed the load threshold value of setting, or when breaking down, MSC/SAU can send the calling service request according to the principle of load balancing other the Service Processing Unit MSC/SPU in logic MSC and be connected foundation with SCCP and ask.

After MSC/SPU receives that the calling service request is connected the request of foundation with SCCP; Distribute local SCCP to connect reference number; This MSC/SPU adds this MSC/SPU node identification when distributing local SCCP to connect reference number, and returns the SCCP connection establishment response to MSC/SAU, and this SCCP connection establishment response carries this MSC/SPU node identification; The distribution of MSC/SPU node identification and adding method can be with reference to figure 4 embodiment related distribution and adding methods.

MSC/SPU sets up SCCP through MSC/SAU and BSC and is connected, and follow-up reciprocal process is accomplished in the SCCP connection, only needs MSC/SAU to carry out route control according to the MSC/SPU node identification.

MSC/SPU is through between MSC/SAU and the user UE, and it is mutual to carry out calling service, only needs MSC/SAU to carry out route according to the MSC/SPU node identification and controls.

Therefore, in the calling service process, because MSC/SPU carries out calling service when mutual through MSC/SAU, that externally appear is a logic MSC, so can practice thrift information and/or link overhead.And MSC/SAU can carry out route control, selects appropriate MSC/SPU; So can reduce the communication load of each MSC/SPU, and then improve communication quality and/or reliability, even when calling service pairing MSC/SPU appearance of negative loading or overload; For example; Meet or exceed the load threshold value of setting, or when breaking down, also can other MSC/SPU that calling service is distributed among the logic MSC be handled.

As shown in Figure 6, be the schematic flow sheet of a kind of user's called service method 60 of the embodiment of the invention, the process of its user's called service method 60 can be described below.

Wherein, The annexation of user's called service method 60 pairing communication systems, and the annexation of logic MSC can be with reference to the related annexations of figure 3,4 embodiment; For with Fig. 3, the related repeating part of 4 embodiment, no longer do detailed description in the present embodiment.

The calling subscriber initiates the calling service request, and this calling service request is transferred to gateway MSC (GMSC, Gateway Mobile Switching Centre).

After this GMSC receives the calling service request that the calling subscriber initiates; HLR to called subscriber UE ownership sends route request information; With the acquisition request roaming number, for example, GMSC sends SRI (Send Routing Information sends routing iinformation) message to this called HLR.

After called HLR is received route request information; For the MSC/SPU to called subscriber's registration obtains roaming number; The device identification of the called logical MSC that preserves at HLR when HLR registers according to called subscriber UE; A called MS C/SAU in called logical MSC sends roaming number and obtains request, and for example, called HLR is sent PRN (Provide Roaming Number Provides Roaming Number) message to called MS C/SAU.Called HLR also can be obtained request to a called MS C/SAU transmission roaming number according to the principle of load balancing and the device identification of called logical MSC, specifically can be with reference to the related relevant transmission method of figure 2, Fig. 3 and/or Fig. 4.

Wherein, the device identification that called logical MSC is carried in the roaming number that called HLR is sent to the called MS C/SAU request of obtaining, this device identification includes the MSC/SPU node identification.For example, during called subscriber UE registration, if the device identification of the called logical MSC that in called HLR, preserves is the GT sign indicating number; Then include called MS C/SPU node identification in this GT sign indicating number; Be expressed as: 13800x, wherein, x be called MS C/SPU node identification 1,2,3 ..., N.

Above-mentioned method of in device identification, carrying called MS C/SPU node identification specifically can be with reference to the related corresponding contents of figure 2, Fig. 3 and/or Fig. 4.

After called MS C/SAU receives that this roaming number obtains request; According to the MSC/SPU that itself preserves and node routing relation table between the node identification and the entrained MSC/SPU node identification of the roaming number request of obtaining; Transmit roaming number to the pairing called MS C/SPU of this node identification and obtain request, this MSC/SPU node identification is carried in the request of obtaining of this roaming number.For example; The GT sign indicating number of called HLR in the PRN message that called MS C/SAU sends carries called MS C/SPU node identification; Called MS C/SAU is according to this called MS C/SPU node identification that carries and called MS C/SAU that itself preserves and the node routing relation table between the node identification; Give the pairing called MS C/SAU of this node identification with the PRN forwards, wherein the GT sign indicating number of this PRN message carries called MS C/SPU node identification.

After called MS C/SAU receives that this roaming number obtains request, also can select the called MS C/SPU of a coupling, and send this roaming number to the called MS C/SPU of this coupling and obtain request according to the principle of load balancing.Especially; When this roaming number obtains the called MS C/SPU appearance of negative loading of asking entrained called MS C/SPU node identification correspondence or overloads; For example, meet or exceed the load threshold value of setting, or when breaking down; This called MS C/SAU selects other the called MS C/SPU of coupling in this called logical MSC according to the principle of load balancing, and sends this roaming number to other the called MS C/SPU of coupling of this selection and obtain request.Above-mentioned method of sending according to the principle of load balancing specifically can be with reference to the related corresponding contents of figure 2, Fig. 3 and/or Fig. 4.

After called MS C/SPU receives that above-mentioned roaming number obtains request; Distribute roaming number (MSRN; Mobile Station Roaming Number), in roaming number, carry this called MS C/SPU node identification, the concrete mode of carrying is for increasing node identification at MSRN.For example, 13800x4321, wherein 13800 is the GT sign indicating number, and x is the MSC/SPU node identification, and 4321 is random number, is used for identifying user.For example; The MSRN that the first called MS C/SPU distributes is 1380014321; The MSRN that the second called MS C/SPU distributes is that the MSRN that 1380024321, the three called MS C/SPU distribute is 1380034321, wherein; Carry the method for this called MS C/SPU node identification, specifically can be with reference to the related corresponding contents of figure 2, Fig. 3 and/or Fig. 4.

Called MS C/SPU sends to above-mentioned called MS C/SAU with the roaming number MSRN that distributes, and wherein, this roaming number MSRN carries this called MS C/SPU node identification.

Called MS C/SAU is transmitted to called HLR with the roaming number MSRN that receives, wherein, this roaming number MSRN carries this called MS C/SPU node identification.

Called HLR will receive that roaming number MSRN sends to above-mentioned GMSC, and wherein, this roaming number MSRN carries this called MS C/SPU node identification.

The device identification that this GMSC comprises according to roaming number; The MSC/SAU that called subscriber UE registers is delivered in incoming call, and this incoming call comprises above-mentioned roaming number MSRN, for example; The GT sign indicating number that GMSC comprises according to roaming number; Initial address message (IAM, Initial Addressing Message) is sent to the MSC/SAU that called subscriber UE registers, and this IAM message is carried above-mentioned roaming number MSRN.Wherein, the concrete grammar of the MSC/SAU of called subscriber UE registration is delivered in incoming call, specifically can be with reference to related be routed to logic MSC and and then be routed to the method for the MSC/SAU among this logic MSC of figure 2, Fig. 3 and/or Fig. 4 according to device identification.

This called MS C/SAU parses called MS C/SPU node identification from the roaming number MSRN of incoming call; According to this node identification and MSC/SPU that itself preserves and the node routing relation table between the node identification; Incoming call is routed to corresponding called MS C/SPU, and above-mentioned roaming number MSRN is carried in this incoming call.

After corresponding called MS C/SPU receives said incoming call, set up session through this called MS C/SAU and GMSC, in this process, this called MS C/SAU carries out route control according to this called MS C/SPU node identification.For example, after this called MS C/SPU receives said incoming call, distributor circuit identification code (CIC; Circuit identification code); Through this MSC/SAU set up and GMSC between the interoffice junction session, for example ISUP (ISUP, Integrated Services DigitalNetwork User Part) session or with the call control protocol (BICC of bearer independent; Bearer IndependentCall Control Protocol) session; Follow-up Signalling exchange, for example Paging carries out in the interoffice junction session; This called MS C/SAU confirms this called MS C/SPU node identification according to the CIC in the session, this called MS C/SAU according to this called MS C/SPU node identification accomplish between this called MS C/SPU and the called subscriber UE alternately.

Therefore, in the called service process, because called MS C/SPU carries out called service when mutual through called MS C/SAU, that externally appear is a logic MSC, so can practice thrift information and/or link overhead.And called MS C/SAU can carry out route control, can select appropriate MSC/SPU; So can reduce the communication load of each MSC/SPU, and then improve communication quality and/or reliability, even when called service pairing called MS C/SPU appearance of negative loading or overload; For example; Meet or exceed the load threshold value of setting, or when breaking down, also can other called MS C/SPU that called service is distributed among the called logical MSC be handled.

As shown in Figure 7, be the schematic flow sheet of a kind of MSC changing method 70 of the embodiment of the invention, the process of its MSC changing method 70 can be described below.

Wherein, The annexation of MSC changing method 70 pairing communication systems, and the annexation of the MSC-B of logical target end office (EO) can be with reference to the related annexations of figure 3,4 embodiment; For with Fig. 3, the related repeating part of 4 embodiment, no longer do detailed description in the present embodiment.

Switch and initiate the device identification of the MSC-A of end office (EO) according to the MSC-B of logical target end office (EO), MSC-B sends out handoff request to logical target end office (EO), for example, sends the MAP signaling, and this handoff request can also be carried the node identification of the MSC-B/SPU of target end office (EO).This handoff request is received by a MSC-B/SAU of target end office (EO) among the MSC-B of logical target end office (EO), and the detailed process that the MSC-B/SAU of this target end office (EO) receives can be with reference to the related distributing contents of figure 2, Fig. 3 and/or Fig. 4.

After the MSC-B/SAU of target end office (EO) receives handoff request; Can select the corresponding MSC-B/SPU of target end office (EO) perhaps to select the MSC-B/SPU of target end office (EO) of a coupling according to the node identification of the MSC-B/SPU of logical target end office (EO) according to the principle of load balancing; Then handoff request is distributed to the MSC-B/SPU of target end office (EO) of this selection; For example, the algorithm of load balancing can be for selecting at random.

Even when the MSC-B/SPU of target end office (EO) appearance of negative loading that this service switchover is corresponding or overload; For example; Meet or exceed the load threshold value of setting; Or when breaking down, after the MSC-B/SAU of target end office (EO) receives handoff request, also can handoff request be distributed to the MSC-B/SPU of another target end office (EO) among the MSC-B of logical target end office (EO) according to the principle of load balancing.

Wherein, according to the principle distribution procedure of device identification or the load balancing of the MSC-B of logical target end office (EO), specifically can be with reference to reference to the related distributing contents of figure 2, Fig. 3 and/or Fig. 4.

After the MSC-B/SPU of target end office (EO) received handoff request, (HON HandoverNumber), carried the MSC-B/SPU of target end office (EO) node identification in the Handover Number, the concrete mode of carrying is for increasing node identification in Handover Number to distribute Handover Number.For example, the distribution Handover Number is 13700x4321, and for example, the HON that a MSC-B/SPU distributes is that the HON that 1370014321, the two MSC-B/SPU distribute is that the HON that 1370024321, the three MSC-B/SPU distribute is 1370034321.

The MSC-B/SPU of target end office (EO) is through setting up the MAP session between MSC-B/SAU of target end office (EO) and the initiation MSC-A of end office (EO).Wherein, the MAP session reference of distributing in the MAP session number is carried the MSC-B/SPU of target end office (EO) node identification, and follow-up then carries out through this MAP session alternately.

After the MSC-B/SPU of target end office (EO) distributes Handover Number, send handoff response to the MSC-B/SAU of target end office (EO), this handoff response is carried the MSC-B/SPU of target end office (EO) node identification.

The MSC-B/SAU of target end office (EO) is transmitted to the handoff response of receiving through the MAP session and initiates the MSC-A of end office (EO), and this handoff response is carried the MSC-B/SPU of target end office (EO) node identification.

After the initiation MSC-A of end office (EO) received Handover Number, MSC-B/SAU transmitted into office signaling to target end office (EO), and this is gone into office signaling and carries Handover Number, and this Handover Number carries the MSC-B/SPU of target end office (EO) node identification.For example, initiate the MSC-A of end office (EO) and send IAM, carry Handover Number among the IAM, and this Handover Number carries the MSC-B/SPU of target end office (EO) node identification to the MSC-B/SAU of target end office (EO).Wherein, this IAM is the IAMISUP signaling, and present embodiment is that ISDN User Part is an example with interoffice, if interoffice is a Bearer Independent Call Control Protocol, processing procedure is similar.

After the MSC-B/SAU of target end office (EO) receives office signaling; From Handover Number, parse the MSC-B/SPU of target end office (EO) node identification; According to the MSC-B/SPU of target end office (EO) and the node routing relation table between the node identification and this MSC-B/SPU of target end office (EO) node identification that parses of its preservation, the Incoming signalling route is arrived the corresponding target MSC-B/SPU of end office (EO).

After receiving office signaling, the MSC-B/SPU of this target end office (EO) distributes CIC; This CIC carries the MSC-B/SPU of target end office (EO) node identification, sends the complete message in address (ACM, Address Complete Message) to the MSC-B/SAU of target end office (EO); And carry out follow-up call treatment; Initiate to set up the session of interoffice ISUP relaying between MSC-A of end office (EO) and the MSC-B of logical target end office (EO), follow-up ISUP signaling, SAU can distinguish the MSC-B/SPU of target end office (EO) according to CIC.

In the handoff procedure, transmit the signaling of A/Iu interface between MSC-A and the MSC-B of logical target end office (EO) through the MAP session, the MSC-B/SAU of target end office (EO) can number obtain the MSC-B/SPU of target end office (EO) node identification according to the MAP session reference.

Therefore, in above-mentioned handoff procedure, when carrying out the business switching owing to the MSC-B/SPU of target end office (EO) through the MSC-B/SAU of target end office (EO), that externally appear is a MSC-B of logical target end office (EO), so can practice thrift information and/or link overhead.And; The MSC-B/SAU of target end office (EO) can carry out route control, can select the appropriate MSC-B/SPU of target end office (EO), so can reduce the communication load of the MSC-B/SPU of each target end office (EO); And then raising communication quality and/or reliability; Even when the MSC-B/SPU of end office (EO) appearance of negative loading of the pairing target of service switchover or overload, for example, meet or exceed the load threshold value of setting; Or when breaking down, also can the MSC-B/SPU of other target end office (EO)s that service switchover is distributed among the MSC-B of logical target end office (EO) be handled.

What the foregoing description was described is in the present communication system; With MSC equipment is the communication equipment of example; By the specific embodiment of distributed deployment; And some Business Processing processes of using, the present invention can also be suitable for any communication equipment of network side in the evolvement network of future generation, and is specific as follows said.

As shown in Figure 8, be the system architecture sketch map of a kind of 3GPP evolvement network of the embodiment of the invention, the entity that this evolvement network mainly comprises can be described below.

Evolution UMTS Terrestrial radio access network (E-UTRAN, Evolved UMTS Terrestrial RadioAccess Network) 401 is used to realize all and the wireless function associated of evolvement network.

Mobile management network element (MME, Mobility Management Entity) 402 is responsible for the mobile management of chain of command, comprises the management of user's context and mobile status, distributing user temporary identity sign etc.

Service gateway entity (SGW, Serving Gateway) 403 is the user plane anchor points between the 3GPP access network, stops the interface of E-TURAN.

Grouped data network gateway entity (PDN GW; Packet Data Network Gateway) 404; Be the user plane anchor point between 3GPP access network and the non-3 GPP access network network 411, the interface of termination and external packet data network (PDN, Packet Data Network).

"Policy and Charging Rules Function entity (PCRF, Policy and Charging Rule Function) 405 is used for policy control decision and flow based charging controlled function.

Home network server HSS406 is used for storing user subscription information.

UMTS Terrestrial radio access network (UTRAN; UMTS Terrestrial Radio Access Network) 407 GSM EDGE Radio Access Network (GERAN; GSM/EDGE Radio Access Network) 408; Be used to realize wireless function associated in all and existing GPRS or Universal Mobile Telecommunications System (UMTS, the Universal MobileTelecommunications System) network.

Service universal grouping wireless business supporting node SGSN409 is used for realizing functions such as GPRS/UMTS network routing forwarding, mobile management, session management and user profile storage.

Non-3GPP IP access network (Non-3GPP IP Access) 411; Mainly be the access network of some non-3GPP tissue definition, like WLAN (WLAN, Wireless Local Area Network); Micro-wave access global inter communication (Wimax; Worldwide Interoperability for Microwave Access), code division multiple access inserts networks such as (CDMA, Code Division Multiple Access).

Authentication, authorize accounting server (AAA Server, Authentication, Authorization andAccounting Server) 410 and be used for UE is carried out access authentication, mandate and billing function.

User UE412 is used for carrying out service interaction through E-UTRAN401 and 3GPP evolvement network.

The network side any communication equipment of this 3GPP evolvement network, MME402 for example, SGW 403; SGSN409, PDN Gateway404, PCRF405; HSS406, and AAA server410 etc., the distributed deployment mode that discloses like Fig. 2 or Fig. 3 all can be adopted; Its concrete logical construction and annexation can be rendered as a logic control class communication equipment with reference to figure 2 or the related embodiment of Fig. 3 after the distributed deployment, to its peripheral equipment a device identification is provided.But be the convenience of describing, following is that example describes with SGSN and MME.

After a plurality of SGSN equipment 409 is by distributed deployment, obtain logic SGSN, logic SGSN provides a device identification to peripheral equipment.

When logic SGSN handled miscellaneous service, its process was similar with logic MSC, can be with reference to the related embodiment part of figure 3 to Fig. 7, below concise and to the point itself and the difference of logic MSC when the processing miscellaneous service described.

Logic SGSN is to its peripheral equipment, for example, MME402, UTRAN407, GERAN408, the signalling point that provides are aa, the GT sign indicating number is 13800.

SGSN/SPU1 is designated 1, and SGSN/SPU 2 is designated 2, and SGSN/SPU 3 is designated 3 ..., SGSN/SPUn is designated n.Simultaneously, each SGSN/SPU node all has physical label, like IP address or signalling point etc.; With the IP address is example, and the IP address of supposing SGSN/SPU1 is IP1, and the IP address of SGSN/SPU2 is IP2; The IP address of SGSN/SPU 3 is IP3 ..., the IP address of SGSN/SPUn is IPn.

SGSN/ sets up node routing relation table on SAU, as shown in table 3.

Table 3, node routing relation table

Nodename	Node identification	The IP address
			SGSN/SPU?1	1	IP?1(192.168.10.11)
SGSN/SPU?2	2	IP?2(192.168.10.12)
			SGSN/SPU?3	3	IP?1(192.168.10.13)
...	...	...
			SGSN/SPU?n	n	IP?n(192.168.10.1x)

The registration process of logic SGSN.

When user 412 registers; Registration process and logic MSC registration process method are similar; That in MSC, adopt is TMSI, and that in logic SGSN, adopt is Packet-TMSI (P-TMSI, Packet-Temporary Mobile Station Identity); Accordingly, be that P-TMSI carries the SGSN/SPU node identification.Connect reference number at SCCP, the method for in MAP dialogue number, carrying the SGSN/SPU node identification also can be with reference to the related embodiment of logic MSC.

Need to prove that during user's 412 registrations, can in HSS406, register the IP address of each SGSN/SPU, wherein, the IP address interconnect of each SGSN/SPU is inequality.So, when SGSN/SAU carries out the signal route, according to the node routing relation table of its preservation, for example: table 3, and the SGSN/SAU node identification that signal carries carries out route.

When registration professional pairing SGSN/SPU appearance of negative loading or overload, for example, meet or exceed preset load threshold value; Or when breaking down; GGSN/SAU can also be according to the load balancing principle, on registration distribution of services other SGSN/SPU in this logic SGSN, in follow-up reciprocal process; GGSN/SAU carries out route according to node routing relation table and the entrained SGSN/SPU node identification of signal, specifically with reference to the related registration service implementation example of logic MSC.

The calling service process of logic SGSN.

Similar with logic MSC calling service process approach; After a plurality of SGSN distributed deployments, when user 412 carried out calling service, SGSN/SAU obtained the SGSN/SPU node identification from P-TMSI; Remaining processing procedure is similar with MSC distributed deployment processing procedure, no longer specifically describes.

When calling service pairing SGSN/SPU appearance of negative loading or overload, for example, meet or exceed preset load threshold value; Or when breaking down; GGSN/SAU can also be distributed to calling service on other SGSN/SPU among this logic SGSN, in follow-up reciprocal process according to the load balancing principle; GGSN/SAU carries out route according to node routing relation table and the entrained SGSN/SPU node identification of signal, specifically with reference to the related calling service embodiment of logic MSC.

The called service process of logic SGSN.

Similar with logic MSC called service process approach; After a plurality of SGSN distributed deployments, when user 412 carried out called service, GGSN/SAU was according to the node routing relation table of its preservation; For example: table 3; And the SGSN/SAU node identification that carries of called signal, obtaining the routing iinformation of the SGSN/SPU of user's 412 registrations from HSS406, HSS406 returns the IP address of SGSN/SPU; Return be exactly user 412 registration the time place SGSN/SPU the IP address, GGSN/SAU can be routed directly to this SGSN/SPU according to this routing iinformation.

When called service pairing SGSN/SPU appearance of negative loading or overload, for example, meet or exceed preset load threshold value; Or when breaking down; GGSN/SAU can also be distributed to called service on other SGSN/SPU among this logic SGSN, in follow-up reciprocal process according to the load balancing principle; GGSN/SAU carries out route according to node routing relation table and the entrained SGSN/SPU node identification of signal, specifically with reference to the related called service embodiment of logic MSC.

The handoff procedure of logic SGSN.

Similar with logic MSC service switchover process approach, in packet domain, the handoff procedure between the SGSN is accomplished by interoffice SGSN routing update (Inter SGSN Routing Area Update) process.

When the user when the initial SGSN of end office (EO) switches to the SGSN of purpose end office (EO), its handoff procedure can be described below.

If the SGSN of purpose end office (EO) is the SGSN of logical target end office (EO); Promptly the SGSN of this logical target end office (EO) comprises a plurality of SGSN that carry out distributed deployment, when the user roams into the SGSN of logical target end office (EO), and the roaming request of transmission; For example; Routeing Area Update message, the SGSN/SPU of a SGSN/SAU selection among the SGSN of this logical target end office (EO) comes the roaming request of process user, for example; The SGSN/SPU node identification that can carry according to roaming request or select according to the load balancing principle, its selection course can be with reference to the selection course of the related embodiment of above-mentioned logic MSC.After selecting SGSN/SPU, GGSN/SAU is according to the node routing relation table of its preservation, for example: table 3, and the SGSN/SPU node identification that carries of signal, carry out route to signal.

If the initial SGSN of end office (EO) is the initial SGSN of end office (EO) that is logic; Promptly the initial SGSN of end office (EO) of this logic comprises a plurality of SGSN that carry out distributed deployment; When the SGSN of purpose end office (EO) gets the SGSN context to the initial SGSN of end office (EO) of logic, send the SGSN context and obtain request, for example: SGSN Context Request message; This SGSN context obtains the P-TMSI that can carry the SGSN of purpose end office (EO) in the request; When carrying out information interaction, a SGSN/SAU among the initial SGSN of end office (EO) of logic can select a SGSN/SPU to handle, for example; The SGSN/SPU node identification that can carry according to P-TMSI or select according to the load balancing principle, its selection course can be with reference to the selection course of the related embodiment of above-mentioned logic MSC.After selecting SGSN/SPU, GGSN/SAU is according to the node routing relation table of its preservation, for example: table 3, and the SGSN/SPU node identification that carries of signal, carry out route to signal.

When service switchover pairing SGSN/SPU appearance of negative loading or overload, for example, meet or exceed preset load threshold value; Or when breaking down; GGSN/SAU can also be distributed to service switchover on other SGSN/SPU among this logic SGSN, in follow-up reciprocal process according to the load balancing principle; GGSN/SAU carries out route according to node routing relation table and the entrained SGSN/SPU node identification of signal, specifically with reference to the related service switchover embodiment of logic MSC.

Foregoing description be the processing procedure of logic SGSN at miscellaneous service, following is that example describes with logic MME again.

The registration process of logic MME.

Similar with logic MSC registration business procedure method, after the MME distributed deployment, obtain logic MME; In user registration course, adopt GUTI (Globally Unique Temporary UE Identity) to carry the MME/SPU node identification, between eNodeB and the MME S1-AP agreement; In the connection reference number of S1-AP agreement, carry the MME/SPU nodal information, for example: the IP address, MME/SAU carries out route according to node routing relation table and this nodal information itself preserved; Perhaps carry out route according to the load balancing principle; In the SAE network, when the user registers, in S-GW, create PDP; PDP comprises the nodal information of MME/SUP, for example: the IP address of MME/SPU.

When registration professional pairing MME/SPU appearance of negative loading or overload, for example, meet or exceed preset load threshold value; Or when breaking down; MME/SAU can also be according to the load balancing principle, on registration distribution of services other MME/SPU in this logic MME, in follow-up reciprocal process; MME/SAU carries out route according to node routing relation table and the entrained MME/SPU nodal information of signal, specifically with reference to the related registration service implementation example of logic MSC.

User's called service process of logic MME

Similar with logic MSC called service process approach; When the user carries out called service; SGW is mutual through MME/SAU and MME/SPU; SGW obtains the nodal information of MME/SPU from user's PDP information, and for example: the IP address, MME/SAU can be routed to corresponding MME/SPU according to the node routing relation table of itself preserving and this nodal information.

When called service pairing MME/SPU appearance of negative loading or overload, for example, meet or exceed preset load threshold value; Or when breaking down; MME/SAU can also be distributed to called service on other MME/SPU among this logic MME, in follow-up reciprocal process according to the load balancing principle; MME/SAU carries out route according to the nodal information of the entrained MME/SPU of node routing relation table and signal, specifically with reference to the related called service embodiment of logic MSC.

The handoff procedure of logic MME

Similar with logic MSC service switchover process approach, at the SAE network, the handoff procedure between the MME is accomplished by " Tracking Area Update procedures " process.

When the user when the initial MME of end office (EO) switches to the MME of purpose end office (EO), its handoff procedure can be described below.

If the MME of purpose end office (EO) is the logic purpose MME of end office (EO); Promptly this logic purpose MME of end office (EO) comprises a plurality of MME that carry out distributed deployment; When the user roams into the logic purpose MME of end office (EO) by the initial MME of end office (EO); A MME/SAU among the logic purpose MME of end office (EO) selects a MME/SPU node processing user's among this logic purpose MME of end office (EO) roaming request, and for example: TAU (Tracking AreaUpdate) request, its selection course can be with reference to the selection course of logic MSC.

If the initial MME of end office (EO) is the initial MME of end office (EO) that is logic, promptly the initial MME of end office (EO) of this logic comprises a plurality of MME that carry out distributed deployment, when the user roams into the MME of purpose end office (EO) by the initial MME of end office (EO) of logic; The MME of purpose end office (EO) sends context to the initial MME of end office (EO) of logic and obtains request; For example: Context Request message, this context are obtained the GUTI that carries a MME/SPU among the initial MME of end office (EO) of logic in the request, and this GUTI carries the nodal information of this MME/SUP; For example: the IP address; A MME/SAU among the initial MME of end office (EO) of logic can obtain the MME/SPU nodal information from GUTI, then according to node routing relation table and this nodal information itself preserved, the request of obtaining of this context is routed to corresponding MME/SPU node processing; Follow-up processing procedure is not done specific descriptions with similar.

When service switchover pairing MME/SPU appearance of negative loading or overload, for example, meet or exceed preset load threshold value; Or when breaking down; MME/SAU can also be distributed to service switchover on other MME/SPU among this logic MME, in follow-up reciprocal process according to the load balancing principle; MME/SAU carries out route according to the nodal information of the entrained MME/SPU of node routing relation table and signal, specifically with reference to the related service switchover embodiment of logic MSC.

The embodiment of the invention also provides a kind of Service Processing Unit, and is specifically as shown in Figure 9, is the structural representation of a kind of logic control class communication equipment 51 of the embodiment of the invention.This logic control class communication equipment 51 comprises at least one Service Processing Unit 53 and at least one Signaling Access Unit 55; Wherein, the concrete annexation of this logic control class communication equipment 51, Service Processing Unit 53 and Signaling Access Unit 55 can be with reference to figure 2 described embodiment.And Service Processing Unit 53 and Signaling Access Unit 55 be through an identical device identification, i.e. the device identification of logic control class communication equipment 51 communicates with the peripheral equipment of logic control class communication equipment 51.

This Service Processing Unit 53 can comprise receiver module 501, distribution module 503, increase module 504 and sending module 505, and the course of work can be described below.

Receiver module 501 is used to receive the message that Signaling Access Unit 55 sends, and this message can be any message of said method embodiment, for example, and registration service request, calling service request, service switchover request or the like.Wherein, said message can also be carried the node identification of Service Processing Unit 53.Wherein, this message sends to Signaling Access Unit 55 by the peripheral equipment of said logic control class communication equipment 51, and perhaps transmit according to the load balancing principle by the Service Processing Unit node identification that Signaling Access Unit 55 carries according to said message.The message that Service Processing Unit that said message is preserved according to itself by said Signaling Access Unit 55 and the node routing relation table between the node identification are transmitted.

Distribution module 503, be used to receive said message after, distribute the node identification of this Service Processing Unit 53, for example, the described node identification of table 1 or table 2.

Increase module 504, be used for the node identification that said distribution module 503 is distributed is joined the message that need send to Signaling Access Unit 55, for example, define said MAP reference number, SCCP connects reference number, or the several bit among the TMSI carry node identification; Or, increase node identification in GT sign indicating number or the Handover Number at MSRN.Specifically can be with reference to previous methods and system implementation example.

Sending module 505 is used for the message of carrying said Service Processing Unit 53 node identifications is sent to Signaling Access Unit 55.

Wherein, said Service Processing Unit 53 can also comprise Service Processing Module (not shown), is used to handle the message that receiver module 501 is received.

The embodiment of the invention also provides a kind of Signaling Access Unit, and is specifically shown in figure 10, is the structural representation of a kind of logic control class communication equipment 61 of the embodiment of the invention.This logic control class communication equipment 61 comprises at least one Signaling Access Unit 63 and at least one Service Processing Unit 65; Wherein, the concrete annexation of this logic control class communication equipment 61, Signaling Access Unit 63 and Service Processing Unit 65 can be with reference to figure 2 described embodiment.Signaling Access Unit 63 and Service Processing Unit 65 be through an identical device identification, i.e. the device identification of logic control class communication equipment 61 communicates with the peripheral equipment of logic control class communication equipment 61.

Signaling Access Unit 63 can comprise receiver module 601, and sending module 603, selection module 604 can further include memory module 605, computing module 606, and the course of work can be described below.

Receiver module 601; Be used to receive the message that the peripheral equipment of said logic control class communication equipment 61 sends, for example receive the message that peripheral equipment sends according to the device identification of this logic control class communication equipment 61, this message can be any message of said method embodiment; For example; The registration service request, calling service request, service switchover request or the like.Wherein, said message can be carried the node identification of Service Processing Unit 65, can also carry the device identification of logic control class communication equipment 61.

Select module 604, be used to select a Service Processing Unit.Be specially, said selection module 604 is used for the node identification according to the entrained Service Processing Unit of message, selects the pairing Service Processing Unit of this node identification; Perhaps, said selection module 604 is used for calculating according to said computing module 606 preload of working as of the Service Processing Unit that links to each other with said Signaling Access Unit, and the load balancing principle, the Service Processing Unit of a coupling of selection.

Memory module 605 is used for the node routing relation table between the node identification of storage service processing unit 65 and this Service Processing Unit 65.Also can stored logic the node routing relation table between the node identification of other Service Processing Units and corresponding service processing unit, for example table 1 or table 2 in the control type communication equipment 61.

Computing module 606; Be used to calculate the Service Processing Unit that links to each other with said Signaling Access Unit and work as preload; For example; Calculate the load of link between Signaling Access Unit and the Service Processing Unit 65, and/or, can computational logic control class communication equipment 61 in other Service Processing Units work as preload.

Sending module 603, the Service Processing Unit 65 that can be stored according to memory module 605 and the node routing relation table between the node identification send to Service Processing Unit 65 with message.

Specifically can for; The node identification of the Service Processing Unit 65 that Service Processing Unit 65 that sending module 603 is stored according to memory module 605 and the node routing relation table between the node identification and service signal carry sends to Service Processing Unit 65 with message.For example, according to carrying in the MAP reference number, carry in the SCCP connection reference number; Carry among the MSRN; Carry in the GT sign indicating number, carry among the TMSI, or the node identification of the Service Processing Unit 65 that carries in switching number; Corresponding message is issued Service Processing Unit 65, specifically can be with reference to previous methods and system implementation example.

In addition; Sending module 603, the Service Processing Unit 65 that also can calculate according to computing module 606 work as preload, and/or in the logic control class communication equipment 61 other Service Processing Units work as preload; And the load balancing principle, forwards is given the Service Processing Unit of a coupling.

Especially when pairing Service Processing Unit 65 appearance of negative loadings of message or overload; For example; Meet or exceed preset load threshold value, or when breaking down, sending module 603 can be according to the load balancing principle; Message is distributed on other Service Processing Unit in this logic control class communication equipment 61; In follow-up reciprocal process, sending module 603 carries out route according to the node identification of the entrained Service Processing Unit of node routing relation table and message, the service implementation example that the logical device among the concrete reference method embodiment is related.

Wherein, said Service Processing Unit 63 can also comprise configuration module (not shown), is used to dispose the algorithm of above-mentioned load balancing principle.

Description through above execution mode; The those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform; Can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product, and this computer software product is stored in the storage medium that can read, like the floppy disk of computer; Hard disk or CD etc.; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.

The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by said protection range with claim.

Claims (14)

1. a logic control class communication equipment is characterized in that, this logic control class communication equipment comprises N Service Processing Unit and M Signaling Access Unit, and wherein, N, M are natural number;

Said Service Processing Unit is used for communicating by letter with the peripheral equipment of logic control class communication equipment through said Signaling Access Unit, receives the message that said Signaling Access Unit sends and handles;

Said Signaling Access Unit is used to receive the message that said peripheral equipment sends according to the device identification of said logic control class communication equipment; If said message is not carried the Service Processing Unit node identification; Select a Service Processing Unit according to the load balancing principle; If perhaps said message is carried the Service Processing Unit node identification; The Service Processing Unit node identification that then carries according to said message is selected the corresponding service processing unit; And with the Service Processing Unit of said forwards to this selection.

2. logic control class communication equipment as claimed in claim 1 is characterized in that, the Service Processing Unit of said selection also is used for sending message to said Signaling Access Unit, and said message is carried the node identification of the Service Processing Unit of said selection.

3. logic control class communication equipment as claimed in claim 1; It is characterized in that; When the pairing Service Processing Unit of said message breaks down or overloads; Said Signaling Access Unit also is used for selecting according to the load balancing principle Service Processing Unit of the coupling of other outside the pairing Service Processing Unit of message described in the said logic control class communication equipment, and with other the Service Processing Unit of coupling of said forwards to said selection.

4. the logic control class communication equipment of stating like claim 1; It is characterized in that; Said logic control class communication equipment is the logic moving exchanging center MSC, logic mobile management network element MME, logical services universal grouping wireless business supporting node SGSN; Logic attaching position register HLR, logic home subscriber server HSS or logic call conversation control function entity CSCF.

5. a communication means is characterized in that, is applied to comprise the logic control class communication equipment of N Service Processing Unit and M Signaling Access Unit, and wherein, N, M are natural number, and this method comprises:

Signaling Access Unit receives the message of the peripheral equipment of said logic control class communication equipment according to the device identification transmission of said logic control class communication equipment; If said message is not carried the Service Processing Unit node identification, said Signaling Access Unit is selected a Service Processing Unit according to the load balancing principle; If perhaps said message is carried the Service Processing Unit node identification, the Service Processing Unit node identification that then carries according to said message is selected the corresponding service processing unit;

Said Signaling Access Unit is with the Service Processing Unit of said forwards to this selection.

6. communication means as claimed in claim 5; It is characterized in that; When the pairing Service Processing Unit of said message breaks down or overloads; Said Signaling Access Unit is selected the Service Processing Unit of the coupling of other outside the pairing Service Processing Unit in the said logic control class communication equipment according to the load balancing principle, and with other the Service Processing Unit of coupling of said forwards to this selection.

7. communication means as claimed in claim 5 is characterized in that, said Signaling Access Unit receives the node identification that carries this Service Processing Unit from the message of said Service Processing Unit.

8. like claim 5 or 7 described communication meanss, it is characterized in that said node identification is through MAP MAP reference number; Signaling connection control protocol SCCP connects reference number; Roaming number MSRN, the GT sign indicating number, temporary mobile subscriber identity TMSI or Handover Number carry.

9. communication means as claimed in claim 8 is characterized in that, said mode of carrying is: said MAP reference number, and SCCP connects reference number, or the several bit among the TMSI are carried node identification by definition; Or, increase node identification in GT sign indicating number or the Handover Number at MSRN.

10. a Signaling Access Unit is characterized in that, this Signaling Access Unit and at least one Service Processing Unit constitute the logic control class communication equipment, and this Signaling Access Unit comprises:

Receiver module is used to receive the message of the peripheral equipment of said logic control class communication equipment according to the device identification transmission of said logic control class communication equipment;

Select module; Carry the Service Processing Unit node identification if be used for said message; The Service Processing Unit node identification that carries according to said message; Select the corresponding service processing unit, if perhaps said message is not carried the Service Processing Unit node identification, according to the Service Processing Unit of one of load balancing principle selection;

Sending module is used for said forwards to selected said Service Processing Unit.

11. the Signaling Access Unit like claim 10 is characterized in that, said Signaling Access Unit also comprises:

Computing module is used to calculate the preload of working as of the Service Processing Unit that links to each other with said Signaling Access Unit;

Then said selection module is used for selecting a Service Processing Unit to be specially according to the load balancing principle: said selection module; The Service Processing Unit that links to each other with said Signaling Access Unit that is used for calculating according to said computing module work as preload; And the load balancing principle, select a Service Processing Unit.

12. the Signaling Access Unit like claim 11 is characterized in that, said Signaling Access Unit also comprises: configuration module is used to dispose the algorithm of described load balancing principle.

13. a Service Processing Unit is characterized in that, this Service Processing Unit and at least one Signaling Access Unit constitute the logic control class communication equipment, and this Service Processing Unit comprises:

Receiver module; Be used to receive the message that Signaling Access Unit is transmitted; Wherein, This message sends to Signaling Access Unit by the peripheral equipment of said logic control class communication equipment according to the device identification of said logic control class communication equipment, and the Service Processing Unit node identification that carried according to said message by Signaling Access Unit or transmit according to the load balancing principle;

Increase module, be used for the node identification of said Service Processing Unit is joined the message that need send to Signaling Access Unit;

Sending module is used for the message of carrying said node identification is sent to said Signaling Access Unit.

14. the Service Processing Unit like claim 13 is characterized in that, said increase module is used for node identification with said Service Processing Unit and joins the message that need send to Signaling Access Unit and be specially:

Said increase module is used to define the MAP reference number, and SCCP connects reference number, or the several bit among the TMSI carry node identification; Or, increase node identification in GT sign indicating number or the Handover Number at MSRN.

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