CN102098760A

CN102098760A - Method, system and device for accessing into core network nodes

Info

Publication number: CN102098760A
Application number: CN2011100703963A
Authority: CN
Inventors: 孙亚飞; 朱伟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2008-12-31
Filing date: 2008-12-31
Publication date: 2011-06-15
Anticipated expiration: 2028-12-31
Also published as: CN102098760B

Abstract

The embodiment of the invention relates to a method, system and device for accessing into core network nodes. The method comprises the following steps: selecting a core network node into which an access point is accessed according to the pre-established mapping relationship of the access point and the core network node when a service request from the access point is received; and sending the service request to the selected core network node. The embodiment of the invention provides possibility for user equipment to select one of multiple core network nodes to access, and does not require the core network node to support an Iu-flex function, and if the existing core network node does not support the Iu-flex function, by adopting the technical scheme of the embodiment of the invention, functional upgrade needs not to be performed; and the core network also needs not to be changed, thus from the whole system, the technical scheme is more practical and simple, lowers the influence to the core network, and obviously improves the access flexibility of the multiple core network nodes.

Description

The cut-in method of core net node and system and access device

Technical field

The present invention relates to the communication technology, particularly relate to a kind of cut-in method and system and access device of core net node.

Background technology

Iu interface (Iu-Flex) technology is third generation partnership project (Third Generation Partenership flexibly, be called for short 3GPP) middle a kind of new technology of introducing, radio network controller of this technical support (Radio Network Controller, be called for short RNC) in the territory of a plurality of core net (Core Network is called for short CN) node, connect routing function.Wherein, the district that a plurality of CN nodes are served is called territory, pond (Pool-Area), a plurality of CN nodes in the territory, pond are realized load sharing, and these CN nodes come unique identification with network resource identifier (Network Resource Identifier is called for short NRI) in this territory, pond.

As subscriber equipment (User Equipment, be called for short UE) when initiating the access request to certain territory, pond of core net, UE encodes to route information according to preset rules, obtains routing parameter (Intra Domain NAS Node Selector, abbreviation IDNNS), and with routing parameter send to RNC.RNC is according to the routing parameter from UE, and the mapping relations of searching pre-configured NRI and CN node for UE selects appropriate C N node, and send to selected CN node with the initial user facility information.

The inventor finds in realizing embodiment of the invention process, realizes that based on the Iu-Flex technology prerequisite that the multi-core network node inserts is that the CN node can be supported the Iu-Flex function.If in the current network, the CN node is not supported the Iu-Flex function, then needs the CN node is carried out device upgrade, perhaps, disposes more CN node in current network, in order to satisfy the demand that UE inserts many CN node.As seen, there is the inflexible technological deficiency of multi-core network node access way in prior art.

Summary of the invention

The embodiment of the invention provides a kind of cut-in method and system and access device of core net node, in order to improve the flexibility of multi-core network node access way.

The embodiment of the invention provides a kind of cut-in method of core net node, comprising:

When the service request that receives from access point, according to the described access point of setting up in advance and the mapping relations of core net node, the core net node of selecting described access point to insert;

Described service request is sent to the described core net node of selection.

The embodiment of the invention also provides a kind of access device, comprising:

Core net node is selected module, is used for when the service request that receives from access point, according to the described access point of setting up in advance and the mapping relations of core net node, the core net node of selecting described access point to insert;

Sending module is used for described service request is sent to the described core net node of selection.

The embodiment of the invention provides a kind of connecting system of core net node again, comprising: access point and a plurality of core net node also comprise arbitrary access device that the embodiment of the invention provides.

The cut-in method of a kind of core net node that the embodiment of the invention provides and system and access device, by the access point of foundation in advance and the mapping relations of core net node, for access point is selected suitable core net node, and service request sent to the core net node that this is selected, thereby provide may for subscriber equipment is selected to insert between a plurality of core net nodes.The embodiment of the invention does not require that core net node must support the Iu-flex function, if existing core net node is not supported the Iu-flex function, adopt the present embodiment technical scheme can not need to carry out function upgrading, core net is not needed to change yet, therefore, practical more simple from whole system, reduced the core net influence, obviously improved the flexibility that the multi-core network node inserts.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the cut-in method first embodiment flow chart of core net node of the present invention;

Fig. 2 is the cut-in method application scenarios network architecture schematic diagram of core net node of the present invention;

Fig. 3 is the cut-in method second embodiment Signalling exchange figure of core net node of the present invention;

Fig. 4 a is cut-in method the 3rd embodiment Signalling exchange figure of core net node of the present invention;

Fig. 4 b is the application scenarios network architecture schematic diagram of UMTS AP system of the present invention and the shared MSC of grand network;

Fig. 5 is cut-in method the 4th embodiment Signalling exchange figure of core net node of the present invention;

Fig. 6 is an access device example structure schematic diagram of the present invention;

Fig. 7 is the connecting system structural representation of core net node of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.

Fig. 1 is the cut-in method first embodiment flow chart of core net node of the present invention.As shown in Figure 1, present embodiment comprises:

Step 11, when the service request that receives from access point, according to the described access point of setting up in advance and the mapping relations of core net node, the core net node of selecting this access point to insert.

Service request from access point can be initialization user equipment message etc.Carry the link connection request of subscriber equipment in this service request.When the service request that receives from access point, can be according to the information of the transport layer that sends service request (such as I P address, stream control transmission protocol (Stream Control Transmission Protocol, be called for short SCTP) port numbers etc.) or the AP sign, know which access point the access point that sends service request specifically is; Thereby according to the information or the AP sign of transport layer, the information of this access point registration that inquiry is set up in advance and the mapping relations of core net node can obtain the core net node that this access point will insert.

Step 13, described service request is sent to the described core net node of selection.

When core net node receives service request, can initiate processing such as link establishment flow process at subscriber equipment, make subscriber equipment to be linked in the core net by access point, realize set business.

Present embodiment is by the access point of foundation in advance and the mapping relations of core net node, for access point is selected suitable core net node, and service request sent to the core net node that this is selected, thereby provide may for subscriber equipment is selected to insert between a plurality of core net nodes.Present embodiment does not require that core net node must support the Iu-flex function, if existing core net node is not supported the Iu-flex function, adopt the present embodiment technical scheme can not need to carry out function upgrading, core net is not needed to change yet, therefore, realize that based on the present embodiment technical scheme subscriber equipment inserts the multi-core network node by access point, practical more simple from whole system, reduced the core net influence, obviously improved the flexibility that the multi-core network node inserts.

Fig. 2 is the cut-in method application scenarios network architecture schematic diagram of core net node of the present invention.Resource for the better utilization existing network, reduce the cost of network equipment operator, in prior mobile network, introduced Universal Mobile Telecommunications System (Universal Mobile Telecommunications Syst em, abbreviation UMTS) access point (Access Point, be called for short AP) and IAD equipment such as (Access Gateway are called for short AG).AP is mainly used in provides UMTS wireless access function, realizes functions such as wireless modulation-demodulation, RRM, power control; AG is usually located at operator's in-house network (In tranet), finishes control and management to AP, and to other network elements (for example: routing function core net node).Interface between AP and the AG is called eIu interface (being the privately owned expansion interface of Iu interface+part); Use standard Uu interface between AP and the UE, compatible existing terminal.AP is mainly used in broadband home, building or inside, garden, typical case's coverage distance is tens meters and arrives hundreds of rice, by existing broadband device, communicate by letter with AG via network, and then by AG and core net (Core Network, abbreviation CN) each node (being the CN node) is mutual, finishes various Signalling exchanges and the business of UMTS.The introducing of AP greatly reduces the impact of high-speed data service to the mobile network, makes prior wireless network can insert more wireless high-speed data user; The introducing of AP has simultaneously also solved wireless data service interface-free resources bottleneck problem, has shunted macrocell high speed data service user.Since AP power on or down electricity is more at random, therefore, the fluctuation of system business amount is bigger, load and impact to core net are just more obvious, and for example: have the AP start of magnanimity evening, the system business amount will sharply increase, and the AP quantity of work hours on daytime start will obviously reduce, therefore, after having introduced AP, also stronger for the requirement of the resource-sharing of core net and load balancing.

For ease of the technical scheme of the embodiment of the invention clearly is described, below embodiment respectively is described in detail in detail is that example describes with application scenarios shown in Figure 2 all.

Fig. 3 is the cut-in method second embodiment Signalling exchange figure of core net node of the present invention.As shown in Figure 3, present embodiment comprises:

Step 31, AP initiate register flow path to AG, and in registration process, AG obtains the information of AP registration.

The function of Node B that AP is integrated among the WCDMA and RNC is by AG physical connection core net; AG also links to each other to Iu (Iu-CS and the Iu-PS) interface that the interface protocol of AG is converted to standard AP except finishing control and the management to AP with core net.

The information of AP registration can comprise: the device identification of AP (AP-ID), or the mobile network of AP sign (PLMN-ID), or the area identification of AP, or the area identification of the grand network in AP place, or the geographical location information of AP, or the broadband fixed network information of AP etc.Wherein, the area identification of AP can comprise: the route district sign indicating number (RAC) of the Location Area Code of AP (LAC), AP or the service area code (SAC) of AP etc.The area identification of the grand network in AP place can comprise: the service area code (SAC) of the grand network of route district sign indicating number (RAC) or AP place of the Location Area Code (LAC) of the grand network in AP place, the grand network in AP place etc.The broadband fixed network information of AP can comprise: port numbers that AP access band (ADSL) fixed network is used or IP address etc.

Step 33, AG set up the information of AP registration and the mapping relations between the CN node.

AG can set up the mapping relations of information of the AP registration of CN node listing and above-mentioned acquisition, AG selects the CN node according to the mapping relations of setting up for each AP, wherein, the CN node can comprise (the Mobile Switching Center of mobile switching centre, be called for short MSC) server or service GPRS node (Serving GPRS Support Node is called for short SGSN).

In the mapping relations of setting up between the information of AG according to CN node listing and AP registration, the AP with identical log-on message can shine upon identical CN node (as: AP1 is identical with the AP2 log-on message, but AP1 and AP2 are mapped to MSC1); Perhaps, the AP with different log-on messages can shine upon different CN node (as: AP1 is different with the AP2 log-on message, and AP1 is mapped to MSC1, and AP2 is mapped to MSC2); Perhaps, the AP of different log-on messages can shine upon identical CN node (as: AP1 is different with the AP2 log-on message, but AP1 and AP2 are mapped to MSC1).

In case determined the CN node, all UE that each AP connects can connect an identical CN node.

Step 35, UE enter the AP coverage from grand network.

UE need initiate Radio Resource and set up flow process (Radio Resource Control Setup is called for short RRC Setup) at this moment.

Step 37, UE send direct-sending message (Init Direct Transfer) to AP.

Step 39, AP send initialization UE message (Init UE MSG) to AG.

Step 311, AG identification send the AP of initialization UE message, and according to the information of the AP registration of setting up in advance and the mapping relations of CN node, definite CN node with the AP mapping is a CN node (CN1).

Because AP registers on AG, therefore, when AG receives initialization UE message, can know which AP the AP that sends service request specifically is according to the information (such as IP address, SCTP port numbers etc.) of the transport layer that sends service request, and according to the information of pre-configured AP registration and the mapping relations of CN node, for AP determines the CN node.

For example: if foundation in advance is the mapping relations of Location Area Code (LAC) Yu the CN node of AP on the AG, at AP when AG sends initialization UE message, which AP the AP that AG identification sends initialization UE message is, and, promptly can be the CN node that the definite subscriber equipment that is connected with AP of AP should insert according to the mapping relations that Location Area Code (LAC) inquiry of this AP is set up in advance;

If what set up in advance on the AG is the IP address of AP and the mapping relations of CN node, at AP when AG sends initialization UE message, the transport layer information that sends according to this message is (such as the IP address, SCTP port numbers etc.) obtain the IP address of AP or the subnet mask of IP address correspondence (distributing different CN with 10.2.255.255) such as 10.1.255.255, the mapping relations that inquiry is set up in advance promptly can be the CN node that the definite subscriber equipment that is connected with AP of AP should insert.

Can be that AP selects appropriate C N node like this based on the deployment scope of fixed network, mobile network's comprehensive operator be arranged again, help that the two carries out unified configuration management with fixed network and mobile network for existing fixed network.

Step 313, AG send to definite CN1 with initialization UE message.

Step 315, CN1 initiate temporary mobile subscriber identity (Temporary Mobile Subscrib er Identity is called for short TMSI) heavily distribution and attaching position register (Home Location Re gister is called for short HLR) information updating flow process.

Suppose that the CN node that UE inserts is the 2nd CN node (CN2) when grand network, owing to entering the AP coverage from grand network, UE changed the CN node (changing into CN1) that inserts core net by CN2, therefore, CN1 need and upgrade HLR information for the heavy distribution T MS I of UE.

Present embodiment is set up the information of AP registration and the mapping relations of CN node in advance on AG, send in the service request process of subscriber equipment at AP, which AP AG is according to the AP of the transport layer information identification transmission service request of AP and AG, and according to the mapping relations of setting up in advance, for AP selects corresponding CN node, promptly can or not support under the situation of Iu-flex function in the support of CN node, selecting access to provide between a plurality of CN nodes for subscriber equipment may, help realizing internodal resource-sharing of CN and load balancing, thereby help improving the stability and the reliability of AP system.Be different from prior art and select CN based on UE, the information (IDNNS) of carrying when business is set up according to UE passes to the CN that RNC (perhaps AG) selects the UE correspondence; The embodiment of the invention is based on AP Information Selection CN node, according to the mapping relations of AP log-on message and CN node, is selected the CN node of AP correspondence by AG when UE sets up business.

AP is the aggregate of housed device and telecommunication apparatus, because AP equipment self particularity, make AP compare the traditional base station, there is own characteristic, for example: the AP enormous amount, and AP is deployed with certain regionality, such as in the residential block, big city or enterprise very concentrated, and the number of users of each AP is seldom.The embodiment of the invention meets the characteristic distributions of AP based on the Information Selection CN node of AP registration; And, the information of AP registration both can be the device identification (AP-ID) of AP, and the area identification of AP (comprising: mobile network's sign (PLMN-ID) of AP, the cell ID of AP (Cell-ID), the Location Area Code of AP (LAC), the route district sign indicating number (RAC) of AP or the service area code (SAC) of AP etc.; It also can be the area identification (PLMN-ID, LAC, RAC, SAC or Cell-ID etc.) of the grand network at place, it also can be the longitude and latitude geography information of AP, can also be the ADSL fixed network information (port numbers or IP address etc.) that AP inserts, can do different configurations according to the needs of operator fully, mode is flexible more, simple and convenient, as long as AG goes up the corresponding mapping relations configuration of increase and handles; Avoided upgrading requirement simultaneously to the CN node.The positional information variation at after the AP resettlement because place, after AG obtains the positional information of the new registration of AP, after upgrading the information on the configured list, still can select to insert between a plurality of core net nodes for subscriber equipment according to configured list provides possibility, and implementation is comparatively flexible.

Fig. 4 a is cut-in method the 3rd embodiment Signalling exchange figure of core net node of the present invention.Present embodiment is that with the difference of the corresponding embodiment of Fig. 3 present embodiment has further been realized reducing UE and move the interoffice signaling that produces between access network and grand network.Shown in Fig. 4 a, present embodiment comprises:

Step 41, AP initiate register flow path to AG, and in registration process, AG obtains the information of AP registration.

The log-on message that reports comprises the area identification (as: the route district sign indicating number RAC10 of Location Area Code LAC10, the AP of AP or the service area code RAC10 of AP) of AP and the area identification (as: the service area code RAC1 of the grand network of route district sign indicating number RAC1 or AP place of the Location Area Code LAC1 of the grand network in AP place, the grand network in AP place) of the grand network in AP place.The information that present embodiment is registered with AP is that the Location Area Code LAC1 of the grand network of Location Area Code LAC10 and AP place of AP is an example.

Step 43, AG set up the Location Area Code LAC10 of AP and the mapping relations between the CN node (as the MSC server).

Fig. 4 b is the application scenarios network architecture schematic diagram of UMTS AP system of the present invention and the shared MSC of grand network.Shown in Fig. 4 b, in Location Area Code LAC10 that sets up AP and MSC server mappings relational process, can be based on a plurality of MSC servers of the configuration scope definition of AP network, as: a MSC server (MSC1) and the 2nd MSC server (MSC2).Preferably, the area identification (as LAC1) of the grand network of area identification (as LAC10) and AP place of AP can be set up mapping relations with identical MSC server (as MSC2).Under this situation, if the shared MSC server of UMTS AP system and grand network, the Location Area Code and the same MSC server that are the two are set up mapping relations, so, when UE occurrence positions between AP network and grand network changed, the MSC server did not then need heavily to distribute and HLR information updating flow process for UE initiates TMSI.Can reduce UE moves the MSC server that produces between AP network and grand network interoffice signaling like this.

Suppose that UE enters before the AP coverage, be registered to MSC2, in grand network, have the mapping relations of grand network area sign LAC1 and MSC2 by grand network RNC; So, under the condition that the MSC2 capacity allows, set up the Location Area Code LAC10 of AP and the mapping relations of MSC2.

Step 45, UE enter the AP coverage from grand network.

Step 47, UE send direct-sending message (Init Direct Transfer) to AP.

Step 49, AP send initialization UE message (Init UE MSG) to AG.

It is that step 411, AG obtain the AP that sends initialization UE message according to transport layer information for which AP, and according to the Location Area Code LAC10 of this AP that sets up in advance and the mapping relations of CN node, determines that the CN node that shines upon with AP is MSC2.

Step 413, AG send to definite MSC2 with initialization UE message.

Because UE in entering the AP coverage time, registers on MSC2 by grand network, at this moment, though UE enters the AP system from grand network, but the CN node (MSC2) that inserts core net does not change, and therefore, MSC2 does not need the TMSI that initiates at UE heavily to distribute and HLR information updating flow process.

Present embodiment is being embodied as subscriber equipment on basis that select to insert the technique effect that provides possible between a plurality of core net nodes, because the CN node that UE inserts when mobile between AP network and grand network is variation not, therefore do not need the TMSI that initiates at UE heavily to distribute and HLR information updating flow process, thereby reduced that UE moves and the interoffice signaling of the CN node of generation between AP network and grand network.

On the basis of present embodiment technical scheme, in the step 49, when AP sends initialization UE message to AG, also can directly send the Location Area Code LAC1 of the grand network at the current place of AP to AG, afterwards, AG can be according to the Location Area Code LAC1 of the grand network of inquiry and the mapping relations of CN node, for AP determines that the CN node that inserts is MSC2.After so handling, because the CN node that UE inserts when mobile between AP network and grand network is variation not, therefore do not need the TMSI that initiates at UE heavily to distribute and HLR information updating flow process, thereby reduced that UE moves and the interoffice signaling of the CN node of generation between UMTS AP system and grand network.

Fig. 5 is cut-in method the 4th embodiment Signalling exchange figure of core net node of the present invention.Present embodiment is that with the difference of Fig. 3 or the corresponding embodiment of Fig. 4 a present embodiment has further been realized the differentiation operation between the different AP.As shown in Figure 5, present embodiment comprises:

The register requirement that step 51, AP1 initiate to AG, AG obtains the registered information of AP1; The register requirement that AP2 initiates to AG, AG obtains the registered information of AP2; AG sets up registered information of first access point (AP1) and the registered information of second access point (AP2), set up mapping relations with a CN node (MSC1) respectively, and be AP1 and the different priority of AP2 configuration, the priority of AP1 is higher, and the priority of AP2 is lower.

Step 53, when MSC1 transships, AG obtains the overload messages of MSC1.

Step 55, when AP2 initiates register requirement (Registration) once more, as: when AP2 re-powers, can initiate register requirement again to AG, and in this register requirement, carry the identification information or the positional information of the current use of AP2.

Step 57, AG send registration reply (Registration Response) message to AP2, carry the information of MSC1 overload in this registration reply message.

AG is according to the identification information or the positional information of the current use of AP2 transmission, the registered information of AP2 that inquiry AG sets up in advance and the mapping relations of CN node, the CN node that obtains the AP2 mapping is MSC1, the priority of AP2 is lower, and the current overload that is in of MSC1 then sends the information that MSC1 transships to AP2.The information of MSC1 overload sends to AP2 by registration reply message.

AP2 can limit the UE that is connected with AP2 and insert core net after the information that receives the MSC1 overload.

Step 59, when AP1 initiates register requirement once more, as: when AP1 re-powers, can initiate register requirement again to AG, and in this register requirement, carry the identification information or the positional information of the current use of AP1.

Do not have the restriction of sequential relationship between step 57 and the step 59, the two can be carried out synchronously.

Step 511, AG are that AP1 selects another lighter CN node (MSC2) of load, and send registration reply message to AP1, carry CN node (MSC2) information of choosing again for AP1 in this registration reply message.

AG is according to the identification information or the positional information of the current use of AP1 transmission, the registered information that inquiry AG sets up in advance and the mapping relations of CN node, the CN node that obtains the AP1 mapping is MSC1, the priority of AP1 is higher, and the current overload that is in of MSC1 is then selected another lighter CN node (MSC2) of load for AP1.The information that change inserts the CN node can send to AP1 by registration reply message.

At AG is that the UE that is connected with AP1 normally was linked into the lighter MSC2 of load after the higher AP1 of priority had disposed new MSC2.

On the basis of present embodiment technical scheme, AG can directly obtain the loading condition of CN node, and loading condition comprises: the connection status of CN node, overload (overload) message etc.Obtain the loading condition of CN node at AG after, AG can not need to transmit to each AP, but according to dividing AP to tactful selection portion in advance, and, therefore reduced signaling traffic to the loading condition that the AP that selects transmits the CN node.If certain CN node overload or can't connect the time, AG can be according to the rule that sets in advance, for all AP under this CN node redistribute appropriate C N node.Wherein, the rule that sets in advance can be other a CN node of picked at random in the CN nodal information of storing on AG (as the CN node listing), perhaps, the CN node configuration priority of on AG, storing, according to the priority of CN node, for the AP with the CN node mapping of transshipping or can't be connected redistributes appropriate C N node; The priority of CN node can be pre-configured or according to the loading condition dynamic change.

In addition, on the basis of present embodiment technical scheme, AG also can inform the result of AP:CN selection or the state variation of CN node by the AP-AG interface message.Under this situation, if after the CN overload, AP also can insert by limited subscriber.Concrete, AG can selectively tell a part CN node and loading condition thereof that the new AP of access selects by registration reply message, perhaps CN node overload information is passed through the AP that a part is being worked, and its limited subscriber is inserted; And, then under the situation of conditions permit, directly select the lighter CN node of other loads to high priority AP, promptly do not need to limit the UE that communicates to connect with high priority AP and insert.AP priority height can be configured according to the identification information or the positional information of AP registration, for example: at the AP (shining upon identical CN node) that distributes identical LAC, distributed different SAC again, at this moment, just can obtain the priority of different AP according to the priority of pre-configured SAC, can realize the differentiation operation of AP like this, also avoid a large number of users equipment to insert the overload that another CN node causes this CN node simultaneously by corresponding AP.

It will be appreciated by those skilled in the art that, the above-mentioned core net node cut-in method of the present invention embodiment also may be used on global system for mobile communications (Global System for Mobile communications, abbreviation GSM), code division multiple access inserts (Code Division Multiple Access, abbreviation CDMA), global interactive inserting of microwave (Worldwide Interoperability for Microwave Acces s, abbreviation WIMAX), Long Term Evolution (Long Term Evolution, be called for short LTE) etc. in the system, repeat no more.

Fig. 6 is an access device example structure schematic diagram of the present invention.As shown in Figure 6, the present embodiment access device comprises: core net node is selected module 61 and sending module 62.

Core net node selects module 61 to be used for when the service request that receives from access point, according to the described access point of setting up in advance and the mapping relations of core net node, the core net node of selecting described access point to insert.

Sending module 62 is used for described service request is sent to the described core net node of selection.

On the basis of technique scheme, the present embodiment access device also can comprise: access-in point information acquisition module 63 and mapping relations are set up module 64.

Access-in point information acquisition module 63 is used to obtain the information of described access point registration.

The information of described access point registration comprises identification information or the positional information of AP, concrete, the information of access point registration can comprise: the device identification of access point, or the mobile network of access point sign, or the area identification of access point, or the area identification of the grand network in access point place, or the geographical location information of described access point, or the broadband fixed network information of access point access.

Mapping relations are set up module 64 and are used for information according to the registration of described access point, set up the mapping relations of described access point and core net node.

The interoffice signaling that produces in order to reduce subscriber equipment to move between heterogeneous networks, mapping relations are set up the area identification that module 64 also is used to the grand network at the area identification of described access point and described access point place, shine upon identical core net node.

In order to realize the differentiation operation of diverse access point, on the basis of technique scheme, the present embodiment access device also can comprise: priority configuration module 65 and difference processing module 66.

Priority configuration module 65 is used to a plurality of access points of the identical core net node of mapping, disposes different priority respectively.

Difference processing module 66 is used for when described node overload of core network, according to the priority of each access point of described core net node mapping, send described node overload of core network information or select other core net nodes to described access point for described access point.

Present embodiment is selected the access point that module sets up in advance and the mapping relations of core net node by core net node, for access point is selected suitable core net node, and service request is sent to the core net node that this is selected by sending module, thereby for subscriber equipment is selected to insert between a plurality of core net nodes provide may, therefore, present embodiment helps realizing resource-sharing and the load balancing between core net node, thereby helps improving the stability and the reliability of access point system.In addition, present embodiment does not require that core net node must support the Iu-flex function, if existing core net node is not supported the Iu-flex function, adopt the present embodiment technical scheme can not need to carry out function upgrading, core net is not needed to change yet, practical simple more from whole system, and reduced to the core net influence, obviously improved the flexibility that subscriber equipment inserts a plurality of core net nodes.Further, present embodiment is set up the area identification of the grand network at area identification that module is an access point and access point place by mapping relations, shine upon identical core net node, thereby reduced that subscriber equipment moves between access point network and the grand network and the interoffice signaling of the core net node that produces.Present embodiment also can be to the different priority of different access point configuration, takes place different access points to be realized the operation of differentiation when unusual at core net node.

Access device embodiment of the present invention can be specially IAD (Acess Gatewa y on specific implementation, abbreviation AG), home node-b (Home Node B, being called for short HNB) gateway (HNB Gateway is called for short HNB-GW) or other are used for access device that access point is managed.Access device of the present invention may be used in the systems such as UMTS, GSM, CDMA, WIMAX, LTE.

Fig. 7 is the connecting system structural representation of core net node of the present invention.As shown in Figure 7, the connecting system of present embodiment core net node comprises: access point 71, access device 72 and a plurality of core net node 73.

Access point 71 is used for sending service request to access device 72.But access point 71 communication link are connected to one or more subscriber equipmenies, and under the triggering of subscriber equipment, access point 71 can send the service request of subscriber equipment to access device 72.

Access device 72 in the connecting system of present embodiment can be in the access device of being mentioned among Fig. 6 and the corresponding embodiment a kind of, for example, access device 72 can be used for when the service request that receives from described access point 71, according to the mapping relations of the described access point of setting up in advance 71 with core net node 73, the core net node 73 of selecting described access point 71 to insert; Described service request is sent to the described core net node 73 of selection.But access device 72 communication link are connected to one or more access points 71.

Core net node 73 is that this service request corresponding user equipment is set up professional the connection when receiving the service request of access device 72 transmissions.

The access point that present embodiment is set up in advance by access device and the mapping relations of core net node, for access point is selected suitable core net node, and service request sent to the core net node that this is selected, thereby provide and to have realized that access device inserts the multi-core network node based on access-in point information for subscriber equipment inserts a plurality of core net nodes.Present embodiment does not require that core net node must support the Iu-flex function, if existing core net node is not supported the Iu-flex function, adopt the present embodiment technical scheme can not need to carry out function upgrading, core net is not needed to change yet, therefore, realize that based on the present embodiment technical scheme multi-core network node inserts, practical more simple from whole system, reduced the core net influence, obviously improved the flexibility that the multi-core network node inserts.

In the connecting system of core net node of the present invention, relevant access device refined structure can repeat no more referring to record embodiment illustrated in fig. 6.Access point also can be described as home node-b (Home Node B is called for short HNB); Access device embodiment can be specially IAD (Acess Gateway, be called for short AG), home node-b gateway (HNB Gateway is called for short HNB-GW) or other and be used for access device that access point is managed on specific implementation; Core net node can comprise MSC, SGSN or other core net nodes.The connecting system of relevant core net node is realized the realization principle that the multi-core network node inserts, and can repeat no more referring to the record of the corresponding embodiment of Fig. 1 of the present invention-Fig. 5.The connecting system of core net node of the present invention may be used in the systems such as UMTS, GSM, CDMA, WIMAX, LTE.

One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of a preferred embodiment, and module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.

One of ordinary skill in the art will appreciate that: the module in the device among the embodiment can be described according to embodiment and be distributed in the device of embodiment, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.

The invention described above embodiment sequence number is not represented the quality of embodiment just to description.

One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.

It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that previous embodiment is put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of embodiment of the invention technical scheme.

Claims

1. the cut-in method of a core net node is characterized in that, comprising:

IAD is known the access point that sends described service request when the service request that receives from access point;

Described IAD, according to the described access point of setting up in advance and the mapping relations of core net node, the core net node of selecting described access point to insert, wherein, the identical core net node of access point mapping with identical log-on message perhaps, has the different core net node of access point mapping of different log-on messages, perhaps, the identical core net node of access point mapping that has different log-on messages;

Described IAD is sent to described service request the described core net node of selection.

2. the cut-in method of core net node according to claim 1 is characterized in that, also comprises:

Described IAD obtains the information of described access point registration, the information of described access point registration comprises: the device identification of described access point, or the mobile network of described access point sign, or the area identification of described access point, or the area identification of the grand network in described access point place, or the geographical location information of described access point, or the broadband fixed network information of described access point access;

Described IAD according to the information of described access point registration, is set up the mapping relations of described access point and core net node.

3. the cut-in method of core net node according to claim 2 in setting up the mapping relations process of described access point and core net node, comprising:

Be the area identification of described access point and the identical core net node of area identification mapping of the grand network at described access point place.

4. the cut-in method of core net node according to claim 1 is characterized in that, also comprises:

For shining upon a plurality of access points of identical described core net node, dispose different priority respectively.

5. the cut-in method of core net node according to claim 4 is characterized in that, described a plurality of access points for the identical core net node of mapping dispose respectively after the different priority, also comprise:

When described node overload of core network, according to the priority of each access point of described core net node mapping, send described node overload of core network information or select other core net nodes to described access point for described access point.

6. an access device is characterized in that, comprising:

Core net node is selected module, be used for when the service request that receives from access point, according to the described access point of setting up in advance and the mapping relations of core net node, the core net node of selecting described access point to insert wherein, has the identical core net node of access point mapping of identical log-on message, perhaps, the different core net node of access point mapping with different log-on messages perhaps, has the identical core net node of access point mapping of different log-on messages;

7. access device according to claim 6 is characterized in that, also comprises:

The access-in point information acquisition module, be used to obtain the information of described access point registration, the information of described access point registration comprises: the device identification of described access point, or the mobile network of described access point sign, or the area identification of described access point, or the area identification of the grand network in described access point place, or the geographical location information of described access point, or the broadband fixed network information of described access point access;

Mapping relations are set up module, are used for the information according to described access point registration, set up the mapping relations of described access point and core net node.

8. access device according to claim 7 is characterized in that, described mapping relations are set up the area identification that module also is used to the grand network at the area identification of described access point and described access point place, shine upon identical core net node.

9. access device according to claim 6 is characterized in that, also comprises:

The priority configuration module is used to a plurality of access points that shine upon identical core net node, disposes different priority respectively.

10. access device according to claim 9 is characterized in that, also comprises:

The difference processing module is used for when described node overload of core network, according to the priority of each access point of described core net node mapping, send described node overload of core network information or select other core net nodes to described access point for described access point.

11. the connecting system of a core net node comprises: access point and a plurality of core net node, it is characterized in that, also comprise arbitrary described access device as claim 6-10.