CN106998572A - A kind of SBC fault recoveries back loading equalization methods and S-CSCF, UE - Google Patents

A kind of SBC fault recoveries back loading equalization methods and S-CSCF, UE Download PDF

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CN106998572A
CN106998572A CN201610049263.0A CN201610049263A CN106998572A CN 106998572 A CN106998572 A CN 106998572A CN 201610049263 A CN201610049263 A CN 201610049263A CN 106998572 A CN106998572 A CN 106998572A
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sbc
cscf
sent
request
registration
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CN106998572B (en
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孟令希
李继
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China Mobile Communications Group Co Ltd
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China Mobile Communications Group Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic or resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/08Load balancing or load distribution

Abstract

The invention discloses a kind of SBC fault recoveries back loading equalization methods and S-CSCF, UE, wherein methods described includes:The first SBC in Session Border Controller (SBC) pond breaks down and after the first SBC recoveries, service call conversation control function (S-CSCF) receives the SBC precedence informations that PGW (PDN Gateway) is sent, the first SBC SBC of priority ratio the 2nd priority is high in the SBC precedence informations, and the 2nd SBC is other SBC in addition to the first SBC in the SBC ponds;S-CSCF receives the identification information that user equipment (UE) is carried in the registration request that the 2nd SBC is sent, the registration request;S-CSCF is sent according to the SBC precedence informations to the UE forbids registration to indicate.

Description

A kind of SBC fault recoveries back loading equalization methods and S-CSCF, UE
Technical field
The present invention relates to speech business (VoLTE, Voice over LTE), more particularly to a kind of Session Border Controller (Session Border Controller, SBC) fault recovery back loading equalization methods and service call conversation control function (S-CSCF, Serving Call Session Control Function), user equipment (UE, User Equipment).
Background technology
With the popularization of mobile forth generation (4G) mobile communication technology, realize that speech business mainly there are two class schemes under 4G networks, i.e., provide speech business based on the second generation/third generation (2G/3G) circuit domain and provide VoLTE based on 4G packet domains (LTE is Long Term Evolution (Long Term Evolution)).And the latter will progressively replace the former to turn into the final solution of speech business under 4G networks.
Under VoLTE networks, similar network element carries out networking, such as SBC Pool by the way of pond (Pool).This mode is that the generic network equipment is divided into N (N>1 integer) individual group of resource pool, each there are M (M in group resource pool>1 integer) this individual kind equipment, each equipment organized in resource pool can be load balancing in home subscriber service in this group of resource pool, realization group resource pool with identical priority (being such as randomly assigned).
Under SBC Pool networking modes, after some SBC fault recovery in a SBC Pool, the mode of this SBC bearer service is as Figure 1-1.Before failure generation, SBC1, SBC2 and SBC3 belong to each SBC loads basis equalization in same SBC Pool, SBC Pool, and such as SBC1 is responsible for UE1 and UE5, and SBC2 is responsible for UE3 and UE4, and SBC3 is responsible for UE2 and UE6.When SBC1 failures, as shown in Fig. 1-1 a figures, the original business of SBC1 needs equably to migrate to SBC2 and SBC3, therefore original SBC1 business needs balancedly to distribute to SBC2 and SBC3, and such SBC2 is responsible for UE1, UE3 and UE4, and SBC3 is responsible for UE2, UE5 and UE6.As shown in Fig. 1-1 b figures, after SBC1 recovers, when having user equipment (abbreviation user) start in overlay area, UE can access SBC1 probabilityly, realize the SBC1 bearer services after fault recovery.
Under VoLTE networks, load-balancing mechanism (refunding mechanism) after existing SBC fault recoveries is within a longer time cycle, networked users in former SBC Pool, once restarted mobile phone, UE equably adheres to IP multimedia subsystem network (IMS according to the SBC lists (List) downloaded from PGW, IP Multimedia Subsystem), realize the load balancing in SBC Pool.The defect of above-mentioned prior art is:First, because prior art by user independently restarts mobile phone, by downloading SBC List from PGW again, re-registration VoLTE networks realize load balancing;And it is this in the way of user is spontaneous for mechanism, the cycle is longer, if user does not shut down in this SBC Pool, then network is not up to load balancing always.Second, because the redundancy in SBC Pool is limited, if after a SBC fault recovery, load balancing in Pool is not allowed quickly, one SBC is in light load, and other SBC are in heavy duty, easily cause and load high equipment fluctuation of service, it is difficult, less than the failure occurred again, to be unfavorable for network overall operation safety simultaneously.
The content of the invention
In view of this, the embodiment of the present invention provides a kind of SBC fault recoveries back loading equalization methods and S-CSCF, UE to solve at least one problem present in prior art, load balancing can be realized by network side active control, so as to quickly realize SBC Pool load balancing, and then recover the ability of the original resisting risk of VoLTE networks.
What the technical scheme of the embodiment of the present invention was realized in:
In a first aspect, the embodiment of the present invention provides a kind of SBC fault recoveries back loading equalization methods, methods described includes:
The first SBC in Session Border Controller (SBC) pond breaks down and after the first SBC recoveries, service call conversation control function (S-CSCF) receives the SBC precedence informations that PGW (PDN Gateway) is sent, the first SBC SBC of priority ratio the 2nd priority is high in the SBC precedence informations, and the 2nd SBC is the part or all of of other SBC in addition to the first SBC in the SBC ponds;
S-CSCF receives the identification information that user equipment (UE) is carried in the registration request that the 2nd SBC is sent, the registration request;
S-CSCF is sent according to the SBC precedence informations to the UE forbids registration to indicate.
Second aspect, the embodiment of the present invention provides a kind of SBC fault recoveries back loading equalization methods, and methods described includes:
The first SBC in Session Border Controller SBC ponds breaks down and after the first SBC recoveries, and user equipment (UE) sends registration request to the 2nd SBC, and the 2nd SBC is other SBC in addition to the first SBC in the SBC ponds;
What the UE receptions S-CSCF was sent forbids registration to indicate.
The third aspect, the embodiment of the present invention provides a kind of S-CSCF, and the S-CSCF includes the first receiving unit, the second receiving unit and the first transmitting element, wherein:
First receiving unit, broken down for the first SBC in Session Border Controller (SBC) pond and after the first SBC recoveries, receive the SBC precedence informations that PDN Gateway is sent, the first SBC SBC of priority ratio the 2nd priority is high in the SBC precedence informations, and the 2nd SBC is other SBC in addition to the first SBC in the SBC ponds;
Second receiving unit, the identification information of user equipment (UE) is carried for receiving in the registration request that the 2nd SBC is sent, the registration request;
First transmitting element, forbids registration to indicate for being sent according to the SBC precedence informations to the UE.
Fourth aspect, the embodiment of the present invention provides a kind of UE, and the UE includes the 4th transmitting element and the 4th receiving unit, wherein:
4th transmitting element, broken down for the first SBC in Session Border Controller SBC ponds and after the first SBC recoveries, registration request is sent to the 2nd SBC, the 2nd SBC is the part or all of of other SBC in addition to the first SBC in the SBC ponds;
4th receiving unit, for receive S-CSCF transmission forbid registration indicate.
The embodiment of the present invention provides a kind of SBC fault recoveries back loading equalization methods and S-CSCF, UE, wherein, the first SBC in SBC ponds breaks down and after the first SBC recoveries, S-CSCF receives the SBC precedence informations that PGW is sent, the first SBC SBC of priority ratio the 2nd priority is high in the SBC precedence informations, and the 2nd SBC is other SBC in addition to the first SBC in the SBC ponds;S-CSCF receives the identification information that user equipment (UE) is carried in the registration request that the 2nd SBC is sent, the registration request;S-CSCF is sent according to the SBC precedence informations to the UE forbids registration to indicate;It so, it is possible to realize load balancing by network side active control, so as to quickly realize SBC Pool load balancing, and then recover the ability of the original resisting risk of VoLTE networks.
Brief description of the drawings
Fig. 1-1 is the schematic diagram of correlation technique SBC bearer services;
Fig. 1-2 is the implementation process schematic diagram of the SBC fault recovery back loading equalization methods of the embodiment of the present invention one;
Fig. 2 is the implementation process schematic diagram one of the SBC fault recovery back loading equalization methods of the embodiment of the present invention three;
Fig. 3 is the implementation process schematic diagram two of the SBC fault recovery back loading equalization methods of the embodiment of the present invention three;
Fig. 4 is the S-CSCF of the embodiment of the present invention four composition structural representation;
Fig. 5 is the UE of the embodiment of the present invention five composition structural representation.
Embodiment
The technical solution of the present invention is further elaborated with specific embodiment below in conjunction with the accompanying drawings.
Embodiment one
In order to solve problem present in aforementioned background art, the embodiment of the present invention provides a kind of SBC fault recoveries back loading equalization methods, Fig. 1-2 is the implementation process schematic diagram of the SBC fault recovery back loading equalization methods of the embodiment of the present invention one, and as shown in Figure 1-2, methods described includes:
The first SBC in step S101, SBC ponds breaks down and after the first SBC recoveries, service call conversation control function (S-CSCF) receives the SBC precedence informations that PGW is sent;
Here, the first SBC SBC of priority ratio the 2nd priority is high in the SBC precedence informations, 2nd SBC is other SBC in addition to the first SBC in the SBC ponds;First SBC at least include one break down and recover after SBC.
Step S102, UE send registration request to the 2nd SBC, and the 2nd SBC is the part or all of of other SBC in addition to the first SBC in the SBC ponds;
Here, the identification information of the UE is carried in the registration request;
Step S103, the 2nd SBC send registration request to enquiry call conversation control function (I-CSCF);
Here, the registration request is transmitted to S-CSCF by I-CSCF.
Step S104, S-CSCF receive the registration request that the 2nd SBC of I-CSCF forwardings is sent;
Step S105, S-CSCF are sent according to the SBC precedence informations to the UE forbids registration to indicate.
Here, step S105, S-CSCF are sent according to the SBC precedence informations to the UE forbids registration to indicate, including:S-CSCF judges whether the UE belongs to the default users of SBC (identification information that can prestore every SBC pre-set user) of non-limit priority, for example, in Fig. 1-1, SBC1 after recovery possesses highest priority, and SBC2 and SBC3 priority ratio SBC1 priority is low, so S-CSCF need judge be, whether belong to SBC2 or SBC3 from the UE of registration, when SBC2 or SBC3 is belonged to from the UE of registration, S-CSCF just sends 403Forbidden to from the UE of registration.
If the UE belongs to, S-CSCF is sent to the UE forbids registration to indicate;If be not belonging to, performed according to normal flow.In the present embodiment, because the first SBC is the flow after breaking down and recovering, therefore, first SBC has highest priority, so S-CSCF only needs to judge the pre-set user whether UE belongs to the first SBC, if the UE belongs to the first SBC, refuse the registration request sent by the 2nd SBC.Because the first SBC is recovered good, so SBC lists (SBC list) update again, S-CSCF refuses the registration request that the 2nd SBC is sent, and after forbidding to UE transmissions 403, UE will initiate to rebuild IMS PDN connections, so, UE receives the SBC lists that PGW is sent, and SBC precedence informations are carried in SBC lists;In this way, UE sends registration request according to the SBC precedence informations to the SBC of highest priority.
Here, it is described to forbid registration to indicate that any information that represent to forbid UE to be registered can be included, for example, described forbid registration to indicate the 403Forbidden that can include commonly using in correlation technique.
Step S106, what the UE receptions S-CSCF was sent forbids registration to indicate.
In the embodiment of the present invention, methods described also includes:
Whether step S107, the S-CSCF UE according to the identification information judgment of the UE belong to the 2nd default users of SBC;
Here, S-CSCF can prestore the list of identification information of each SBC pre-set user, when S-CSCF receives registration request, the list of identification information of the 2nd SBC user is inquired about afterwards, if the identification information of the UE is in the list of identification information of the user of the 2nd SBC, it is determined that the UE belongs to the 2nd default users of SBC;If the identification information of the UE is not in the list of identification information of the user of the 2nd SBC, it is determined that the UE is not belonging to the 2nd default users of SBC.
Step S108, if the UE is not belonging to the 2nd default users of SBC, S-CSCF is according to normal process flow processing;
Here, for example, assuming that UE is not the 2nd SBC user, but the 3rd SBC user, in other words, the 2nd SBC is the part SBC of other SBC in addition to the first SBC in SBC ponds, then S-CSCF is then according to normal re-register flow or initial registration flow processing;If the 2nd SBC is all SBC in addition to the first SBC in SBC ponds, into step S109.
Step S109, if the UE belongs to the 2nd default users of SBC, S-CSCF is sent according to the SBC precedence informations to the UE forbids registration to indicate.
Here, for example, assuming that SBC pond has 5 SBC, numbering is SBC-1, SBC-2, SBC-3, SBC-4 and SBC-5 respectively, wherein, before SBC-1 breaks down, this 5 SBC load is roughly equal;At a time, SBC-1 is broken down, because SBC-1 breaks down, therefore original SBC-1 user equilibrium has been arrived on SBC-2 and SBC-3, therefore, and SBC-2 and the current duty factors of SBC-3 are larger;And because by SBC-1 user equilibrium to SBC-4 and SBC-5, therefore, the load change of SBC-4 and SBC-5 before and after SBC-1 breaks down is not little.After a period of time, SBC-1 starts to recover.Here continue to assume that the first SBC is SBC-1, the 2nd SBC includes SBC-2 and SBC-3, and the 3rd SBC includes SBC-4 and SBC-5;As can be seen here, the 2nd SBC heavier loads are, it is necessary to which equally loaded is on the first SBC, and the first SBC is due to just recovering, so light load;After the load balancing of the embodiment of the present invention, the first SBC, the 2nd SBC and the 3rd SBC load will be roughly equal.
Here, the S-CSCF is can be seen that from above-mentioned step S107 to step S109 should be able to recognize the default user for whether belonging to SBC from the SBC users for sending request.
In the embodiment of the present invention, methods described also includes:
Step S110, the S-CSCF obtain the customer volume of the current registration of the first SBC;
Step S111, the S-CSCF judge whether the customer volume currently registered is more than default threshold value;
Step S112, if the customer volume currently registered is more than default threshold value, the S-CSCF sends errored response to the follow-up UE registered to the first SBC.
It to be that every SBC sets thresholding in a balanced way, after S-CSCF is counted on up to thresholding, S-CSCF no longer carries out equalization operation while load-balancing function is opened that S-CSCF is can be seen that from above-mentioned step S110 to step S112.
Embodiment two
Based on foregoing embodiment one, the embodiment of the present invention provides a kind of SBC fault recoveries back loading equalization methods again, and methods described includes:
Step S201, S-CSCF send service role request (SAR, Server Assignment Request) request to home signature user server (HSS), and carrying P-CSCF in the SAR requests recovers instruction;
Diameter is carried in the service role response (SAA, Server Assignment Answer) that step S202, S-CSCF reception is sent, the SAA successfully to indicate.
Step S203, HSS send to mobile management entity (MME) and P-CSCF reconstruction instructions (P-CSCF Restoration Indication) are carried in IDR message, the IDR message;
Step S204, MME are sent to UE disables carrying request (Deactivate Bearer Request), is carried in the deactivation carrying request and reactivates instruction (reactivation requested);
Step S205, UE receive the deactivation carrying request that mobile management entity MME is sent;
Step S206, UE reactivate instruction in deactivation carrying request, and sending IMS PDN to MME rebuilds message;
After step S207, UE and MME reconstruction IMS PDN are connected, UE receives the SBC lists that PGW is sent, and SBC precedence informations are carried in SBC lists;
Here, it is necessary to which explanation, between MME and PGW after some conventional handling processes, PGW can send SBC lists to UE, and wherein SBC lists include SBC precedence informations.
Step S208, UE send registration request according to the SBC precedence informations to the SBC of highest priority.
In the embodiment of the present invention, the first SBC SBC of priority ratio the 2nd priority is high in the SBC precedence informations, accordingly, and UE sends registration request according to the SBC precedence informations to the SBC of highest priority, including:UE sends registration request according to the SBC precedence informations to the first SBC.
Embodiment three
In order to solve defect present in background technology, the embodiment of the present invention proposes corresponding solution, is summarized as follows:VoLTE networks in SBC Pool after some SBC fault recovery there is provided the ability of active migration user, i.e., by the user of the SBC with more number of users in SBC Pool, migrate into the SBC just recovered, so as to ensure that SBC Pool overall loads are balanced.Wherein, migration action is controllable, and transition process is unsuitable long, and migration can not produce signaling storm impact network.
In VoLTE networks, SBC connected network element S-CSCF increase load balancing apparatus, to realize load balancing control function, wherein CSCF is CSCF (Call Session Control Function), it is different according to function, CSCF points are enquiry call conversation control function (I-CSCF, Inquiry CSCF), Proxy Call Session Control Function (P-CSCF, Proxy CSCF) and service call conversation control function (S-CSCF, Serving CSCF), increased load balancing control function has following feature in S-CSCF:First, can be with manually opened or closing load-balancing function, to ensure after load balancing terminates, network recovery normal process flow.Second, S-CSCF should be able to be recognized from whether the SBC users for sending request belong to default user.3rd, S-CSCF can set thresholding in a balanced way, and after S-CSCF is counted on up to thresholding, S-CSCF no longer carries out equalization operation.4th, after load balancing, which is switched, opens, meet second point and be not up to after thirdly thresholding, when user is to network initiated request, S-CSCF needs to reply errored response to this user.5th, it is necessary to send the instruction of user's reattachment network to HSS after the completion of the 4th point.6th, while S-CSCF receives the request sent in some user's second point, when handling another request of this user, S-CSCF is not by according to the current request for carrying out handling this user in the 4th point.
The load balancing flow of the embodiment of the present invention is described below, Fig. 2 is the implementation process schematic diagram one of the SBC fault recovery back loading equalization methods of the embodiment of the present invention three, as shown in Fig. 2 the flow includes:
Step S301, calculating SBC according to actual conditions needs customer volume, and be used as balanced thresholding using this customer volume in a balanced way;The SBC of user attaching is set, the basis counted in this, as customer volume.
SBC List priority, highest is adjusted to by the SBC just recovered priority in step S302, adjustment PGW.
Step S303, opens the load balancing switch on S-CSCF.
Step S304, in user's registration or re-register, thresholdings of the S-CSCF in step S301 and ownership SBC condition reply errored response to this user.
Step S305, S-CSCF allow user's re-attaching network by HSS and MME.
Step S306, user initiates to register by obtaining SBC List in PGW to the high SBC of priority.
Step S307, PGW recover original SBC List configurations.
Step S308, closes S-CSCF load balancing switch.
Step S302, S305, S306 and S307 are that the load balancing flow in disclosed flow, the embodiment of the present invention has been multiplexed some disclosed flows.
Citing is illustrated below, it is assumed that original three SBC, i.e. SBC1, SBC2 and SBC3 in certain SBC Pool, and each SBC carryings number of users is respectively 20,000.Re-accessing network after recovering after SBC1 failures, adapter business, now SBC1 numbers of users 0, SBC2 and SBC3 numbers of users are respectively 30,000.PGW (PDN GateWay, public data network (PDN, Public Data Network) gateway) adjustment SBC List, SBC1 priority are improved, the SBC List of generation are { SBC1, SBC2, SBC3 } or { SBC1, SBC3, SBC2 }, SBC1 in the UE meeting preference lists of after so restarting or new access is registered, and is issued at random.
Fig. 3 is the implementation process schematic diagram two of the SBC fault recovery back loading equalization methods of the embodiment of the present invention three, as shown in figure 3, the flow includes:
Step S311, UE send registration request to SBC2 or SBC3;
Here, UE identification information (ID) is at least carried in registration request;
Registration request is sent to I-CSCF by step S312, SBC2 or SBC3, and then the registration request is transmitted to S-CSCF by I-CSCF;
Here, I-CSCF and HSS carries out UAR and UAA interaction flow.Wherein, UAR (User Authorization Request, subscription authentication request) message, UAA is subscription authentication response (UAA, User Authorization Answer).
Step S313, S-CSCF send 403Forbidden according to UE identification information to UE;
Here, S-CSCF sends 403Forbidden according to UE identification information to UE, including:S-CSCF sends 403Forbidden to I-CSCF, and then 403Forbidden is transmitted to SBC1 by I-CSCF, and then 403Forbidden is sent to UE by SBC1.
Here, S-CSCF has found that SBC2 or SBC3 priority ratio SBC1 priority is low according to SBC priority list (SBC List), therefore, and S-CSCF sends 403Forbidden according to UE identification information to UE.
Here, opened in S-CSCF and refund switch, setting condition is asked from SBC2 and SBC3 each 10,000 UE sent periodic re-register, returns to 403Forbidden (403 is forbidden).S-CSCF identifications SBC2 and SBC3 mode is to include sbc2.010.chinamobile.com or sbc3.010.chinamobile.com by the sbc-domain parameters registered in the P-Access-Network-Info header fields of (Register) request;
Step S314, S-CSCF send SAR requests to HSS, and P-CSCF Restoration Indication are carried in the SAR requests;
Here, S-CSCF to UE after 403 responses are replied, S-CSCF sends SAR requests to home signature user server (Home Subscriber Server, HSS), wherein including the information such as P-CSCF Restoration Indication (P-CSCF recovers to indicate).
Step S315, S-CSCF receive HSS transmission SAA responses, and it is successful (Diameter success) to carry diameter in the SAA responses.
Step S316, HSS send to MME and P-CSCF reply instructions (P-CSCF Restoration Indication) are carried in IDR message, the IDR message;
Step S317, MME is received after the IDR message of HSS transmissions, MME sends to disable to carry in carrying request (Deactivate Bearer Request) message, the Deactivate Bearer Request to UE reactivates (reactivation requested) instruction.
Step S315 more than is into step S317, and S-CSCF is received after SAA the login state of the user being set to unregistered (unregistered state).HSS receives SAR and asks backward mobile management entity (MME, Mobility Management Entity) send insertion user data requests (IDR, Insert Subscriber Data Request) message, P-CSCF Restoration Indication are carried in IDR message.MME is received after the IDR message for carrying P-CSCF Restoration Indication, send and disable carrying request (Deactivate Bearer Request) message to UE, the NAS cause values disabled in bearing request message are designated as " reactivating (Reactivation Requested) ", and described reactivate rebuilds IMS PDN connections for instruction terminal.
After step S318, UE reception Deactivate Bearer Request message, UE sends IMS PDN to mobile management entity (MME) and rebuilds (PDN re-establishment) message;
Step S319, UE send registration request to SBC1;
Step S320, UE are registered to the initial registration flow of the standard on SBC1.
Here, step S320, UE are registered to the initial registration flow of the standard on SBC1, including:
Registration request is forwarded to I-CSCF by step S3200, SBC1;
Step S3201, I-CSCF obtain S-CSCF information to HSS and registration request are forwarded into S-CSCF according to S-CSCF information by UAR (User-Authorization-Request, subscription authentication request) message;
Step S3202, S-CSCF obtain the authentication information of user by MAR (Multimedia-Auth-Request, multimedia authentication request) message to HSS;
Step S3203, S-CSCF are authenticated by returning to 401 message calls UE to UE;
Step S3204, UE send registration request again, carry authentication information, complete authentication;
Step S3205, S-CSCF obtain user contracting data by SAR message to HSS;
Step S3206, S-CSCF return to 200OK responses to UE, terminate register flow path.
Here, UE rebuilds IMS PDN connections.SBC List are re-downloaded, while according to above-mentioned { SBC1, SBC2, SBC3 } or { SBC1, SBC3, SBC2 } list, initiating to SBC1 registration.Therefore, SBC2 and SBC3 each 1 general-purpose is registered on SBC1 per family when re-registering, and realizes that SBC respectively carries 2 general-purpose families in SBC Pool, reaches load balancing.
Here, it is necessary to which explanation, in general, S-CSCF can receive two class registration requests, and first kind registration request belongs to initial registration request, and Equations of The Second Kind registration request belongs to re-register.Initial registration refers to the authentication carried out during user's first time access network and the process of attachment;Re-register refers to after initial registration, and network is in order to synchronous with user, it is necessary to which user repeats to initiate the process of authentication within the cycle of specifying.
In the embodiment of the present invention, S-CSCF is after registration request is received, and S-CSCF judges whether the registration request belongs to re-register request, wherein judging that the mode whether registration request belongs to re-register request is:This user registers in S-CSCF, and this registration request has safeguard protection, then the registration request just belongs to re-register.
As can be seen from the above embodiments, the present embodiment increases load balancing apparatus in S-CSCF, so as to control to realize SBC Pool load-balancing mechanism by S-CSCF.S-CSCF can be with manually opened and closing load balancing switch;Load balancing condition can be set;Errored response can be sent to qualified user.Based on load balancing apparatus, it is achieved thereby that the flow that a set of load balancing is performed:Open S-CSCF load balancing switch;Errored response is returned to qualified user, S-CSCF load balancing switch is closed.Compared with prior art, the embodiment of the present invention has the following advantages that:In the prior art, it is necessary to which user independently restarts mobile phone to realize the load balancing in SBC Pool.Switched in the present embodiment by load balancing that is manually opened and closing on S-CSCF, load balancing is realized by network side active control.In the prior art, the SBC Pool load balancing cycle is longer, is unfavorable for VoLTE network stabilizations.In the embodiment of the present invention, user within a re-register cycle (typically in or so 1 hour), it is possible to the quick load balancing for realizing SBC Pool, recover the ability of the original resisting risk of VoLTE networks.
Example IV
Based on foregoing embodiment, the embodiment of the present invention provides a kind of service call conversation control function (S-CSCF), each unit included by S-CSCF, and each module included by each unit, it can be realized, can also be realized certainly by specific logic circuit by the processor in S-CSCF;During specific embodiment, processor can be central processing unit (CPU), microprocessor (MPU), digital signal processor (DSP) or field programmable gate array (FPGA) etc..
Fig. 4 is the S-CSCF of the embodiment of the present invention four composition structural representation, as shown in figure 4, the S-CSCF400 includes the first receiving unit 401, the second receiving unit 402 and the first transmitting element 403, wherein:
First receiving unit 401, broken down for the first SBC in SBC ponds and after the first SBC recoveries, receive the SBC precedence informations that PGW (PDN Gateway) is sent, the first SBC SBC of priority ratio the 2nd priority is high in the SBC precedence informations, and the 2nd SBC is other SBC in addition to the first SBC in the SBC ponds;
Second receiving unit 402, the identification information of user equipment (UE) is carried for receiving in the registration request that the 2nd SBC is sent, the registration request;
First transmitting element 403, forbids registration to indicate for being sent according to the SBC precedence informations to the UE.
In the embodiment of the present invention, the S-CSCF also includes the second transmitting element and the 3rd receiving unit, wherein:
Second transmitting element, for sending SAR requests to home signature user server HSS, carrying P-CSCF in the SAR requests recovers instruction;
3rd receiving unit, carries diameter for receiving the SAA sent responses, in the SAA responses and successfully indicates.
In the embodiment of the present invention, the S-CSCF also includes the first judging unit and returning unit, wherein:
Whether first judging unit, belong to the 2nd default users of SBC for UE described in the identification information judgment according to the UE;If the UE belongs to the 2nd default users of SBC, first transmitting element is triggered.
In the embodiment of the present invention, the S-CSCF also includes acquiring unit, the second judging unit and the 3rd transmitting element, wherein:
The acquiring unit, the customer volume of the current registration for obtaining the first SBC;
Second judging unit, for judging whether the customer volume currently registered is more than default threshold value;
3rd transmitting element, if being more than default threshold value for the customer volume currently registered, errored response is sent to the follow-up UE registered to the first SBC.
It need to be noted that be:The description of above S-CSCF embodiments, the description with above method embodiment is similar, with the similar beneficial effect of same embodiment of the method, therefore is not repeated.For the ins and outs not disclosed in S-CSCF embodiments of the present invention, it refer to the description of the inventive method embodiment and understand, to save length, therefore repeat no more.
Embodiment five
Based on foregoing embodiment, the embodiment of the present invention provides a kind of UE, each unit included by UE, and each module included by each unit, can be realized, can also be realized certainly by specific logic circuit by the processor in UE;During specific embodiment, processor can be central processing unit (CPU), microprocessor (MPU), digital signal processor (DSP) or field programmable gate array (FPGA) etc..
Fig. 5 is the UE of the embodiment of the present invention five composition structural representation, as shown in figure 5, the UE 500 includes the 4th transmitting element 501 and the 4th receiving unit 502, wherein:
4th transmitting element 501, is broken down for the first SBC in Session Border Controller SBC ponds and after the first SBC recoveries, and registration request is sent to the 2nd SBC, and the 2nd SBC is other SBC in addition to the first SBC in the SBC ponds;
4th receiving unit 502, for receive S-CSCF transmission forbid registration indicate.
In the embodiment of the present invention, the UE also includes the 5th receiving unit, the 5th transmitting element, the 6th receiving unit and the 6th transmitting element, wherein:
5th receiving unit, carries request for receiving the deactivation of mobile management entity MME transmission, is carried in the deactivation carrying request and reactivate instruction;
5th transmitting element, for reactivating instruction in deactivation carrying request, sending IMS PDN to MME rebuilds message;
6th receiving unit, after being connected with MME reconstructions IMS PDN, UE receives the SBC lists that PGW is sent, and SBC precedence informations are carried in SBC lists;
6th transmitting element, for sending registration request to the SBC of highest priority according to the SBC precedence informations.
In the embodiment of the present invention, the first SBC SBC of priority ratio the 2nd priority is high in the SBC precedence informations, accordingly, the 6th transmitting element, and registration request is sent to the first SBC according to the SBC precedence informations for UE.
It need to be noted that be:The description of above UE embodiments, the description with above method embodiment is similar, with the similar beneficial effect of same embodiment of the method, therefore is not repeated.For the ins and outs not disclosed in UE embodiments of the present invention, it refer to the description of the inventive method embodiment and understand, to save length, therefore repeat no more.
It should be understood that during " one embodiment " or " embodiment " that specification is mentioned in the whole text means that the special characteristic relevant with embodiment, structure or characteristic are included at least one embodiment of the present invention.Therefore, " in one embodiment " or " in one embodiment " occurred everywhere in entire disclosure not necessarily refers to identical embodiment.In addition, these specific feature, structure or characteristics can be combined in one or more embodiments in any suitable manner.It should be understood that, in various embodiments of the present invention, the size of the sequence number of above-mentioned each process is not meant to the priority of execution sequence, and the execution sequence of each process should be determined with its function and internal logic, and any limit is constituted without tackling the implementation process of the embodiment of the present invention.The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
It should be noted that, herein, term " comprising ", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that process, method, article or device including a series of key elements not only include those key elements, but also other key elements including being not expressly set out, or also include for this process, method, article or the intrinsic key element of device.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that also there is other identical element in the process including the key element, method, article or device.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, it can realize by another way.Apparatus embodiments described above are only schematical, for example, the division of the unit, only a kind of division of logic function, can have other dividing mode, such as when actually realizing:Multiple units or component can be combined, or be desirably integrated into another system, or some features can be ignored, or not performed.In addition, the coupling each other of shown or discussed each part or direct-coupling or communication connection can be by some interfaces, the INDIRECT COUPLING or communication connection of equipment or unit, can be electrical, machinery or other forms.
The above-mentioned unit illustrated as separating component can be or may not be physically separate, and the part shown as unit can be or may not be physical location;Both a place can be located at, can also be distributed on multiple NEs;Part or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in various embodiments of the present invention can be fully integrated into a processing unit or each unit is individually as a unit, can also two or more units it is integrated in a unit;Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ hardware adds the form of SFU software functional unit to realize.
One of ordinary skill in the art will appreciate that:Realizing all or part of step of above method embodiment can be completed by the related hardware of programmed instruction, and foregoing program can be stored in computer read/write memory medium, and the program upon execution, performs the step of including above method embodiment;And foregoing storage medium includes:Movable storage device, read-only storage (Read Only Memory, ROM), magnetic disc or CD etc. are various can be with the medium of store program codes.
Or, if the above-mentioned integrated unit of the present invention is realized using in the form of software function module and as independent production marketing or in use, can also be stored in a computer read/write memory medium.Understood based on such, the part that the technical scheme of the embodiment of the present invention substantially contributes to prior art in other words can be embodied in the form of software product, the computer software product is stored in a storage medium, including some instructions are to cause a computer equipment (can be personal computer, server or network equipment etc.) to perform all or part of each embodiment methods described of the invention.And foregoing storage medium includes:Movable storage device, ROM, magnetic disc or CD etc. are various can be with the medium of store program codes.
It is described above; only embodiment of the invention, but protection scope of the present invention is not limited thereto, any one skilled in the art the invention discloses technical scope in; change or replacement can be readily occurred in, should be all included within the scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims (14)

1. a kind of SBC fault recoveries back loading equalization methods, it is characterised in that methods described includes:
The first SBC in Session Border Controller SBC ponds breaks down and after the first SBC recoveries, Service call conversation control function S-CSCF receives the SBC precedence informations that PDN Gateway is sent, described The first SBC SBC of priority ratio the 2nd priority is high in SBC precedence informations, the 2nd SBC For the part or all of of other SBC in the SBC ponds in addition to the first SBC;
The registration that the 2nd SBC that S-CSCF receives enquiry call conversation control function I-CSCF forwardings is sent please Ask, the identification information of user equipment (UE) is carried in the registration request;
S-CSCF is sent according to the SBC precedence informations to the UE forbids registration to indicate.
2. according to the method described in claim 1, it is characterised in that methods described also includes:
S-CSCF sends service role request SAR requests to home signature user server HSS, described P-CSCF, which is carried, in SAR requests recovers instruction;
S-CSCF receives the SAA responses sent, and diameter is carried in the service role response SAA responses Success is indicated.
3. method according to claim 1 or 2, it is characterised in that methods described also includes:
It is default whether S-CSCF UE according to the identification information judgment of the UE belong to the 2nd SBC User;
If the UE belongs to the 2nd default users of SBC, S-CSCF is according to the SBC priority Information is sent to the UE forbids registration to indicate.
4. method according to claim 3, it is characterised in that methods described also includes:
The S-CSCF obtains the customer volume of the current registration of the first SBC;
The S-CSCF judges whether the customer volume currently registered is more than default threshold value;
If the customer volume currently registered is more than default threshold value, the S-CSCF is to follow-up to the The UE of one SBC registrations sends errored response.
5. a kind of SBC fault recoveries back loading equalization methods, it is characterised in that methods described includes:
The first SBC in Session Border Controller SBC ponds breaks down and after the first SBC recoveries, User equipment (UE) sends registration request to the 2nd SBC, and the 2nd SBC is except institute in the SBC ponds State other SBC outside the first SBC;
What the UE receptions S-CSCF was sent forbids registration to indicate.
6. method according to claim 5, it is characterised in that methods described also includes:
UE receives the deactivation carrying request that mobile management entity MME is sent, and described disable is taken in carrying request With reactivating instruction;
UE reactivates instruction in deactivation carrying request, and IMS is sent to mobile management entity MME PDN rebuilds message;
After UE is connected with MME reconstructions IMS PDN, UE receives the session side that PDN Gateway is sent Boundary's controller SBC lists, carry SBC precedence informations in SBC lists;
UE sends registration request according to the SBC precedence informations to the SBC of highest priority.
7. method according to claim 6, it is characterised in that in the SBC precedence informations The one SBC SBC of priority ratio the 2nd priority is high, and accordingly, UE is according to the SBC priority Information sends registration request to the SBC of highest priority, including:
UE sends registration request according to the SBC precedence informations to the first SBC.
8. a kind of service call conversation control function S-CSCF, it is characterised in that the S-CSCF includes First receiving unit, the second receiving unit and the first transmitting element, wherein:
First receiving unit, breaks down for the first SBC in Session Border Controller SBC ponds And after the first SBC recovers, receive the SBC precedence informations that PDN Gateway is sent, the SBC The first SBC SBC of priority ratio the 2nd priority is high in precedence information, and the 2nd SBC is institute State the part or all of of other SBC in SBC ponds in addition to the first SBC;
Second receiving unit, for receiving in the registration request that the 2nd SBC is sent, the registration request Carry the identification information of user equipment (UE);
First transmitting element, note is forbidden for being sent according to the SBC precedence informations to the UE Volume is indicated.
9. S-CSCF according to claim 8, it is characterised in that the S-CSCF also includes the Two transmitting elements and the 3rd receiving unit, wherein:
Second transmitting element, for sending service role request to home signature user server HSS SAR is asked, and carrying P-CSCF in the SAR requests recovers instruction;
3rd receiving unit, for receiving the SAA sent responses, the service role response SAA Diameter is carried in response successfully to indicate.
10. S-CSCF according to claim 8 or claim 9, it is characterised in that the S-CSCF is also wrapped The first judging unit and returning unit are included, wherein:
Whether first judging unit, belong to for UE described in the identification information judgment according to the UE The 2nd default users of SBC;If the UE belongs to the 2nd default users of SBC, triggering is described First transmitting element.
11. S-CSCF according to claim 10, it is characterised in that the S-CSCF also includes Acquiring unit, the second judging unit and the 3rd transmitting element, wherein:
The acquiring unit, the customer volume of the current registration for obtaining the first SBC;
Second judging unit, for judging whether the customer volume currently registered is more than default threshold value;
3rd transmitting element, if being more than default threshold value for the customer volume currently registered, to Follow-up sends errored response to the first SBC UE registered.
12. a kind of user equipment (UE), it is characterised in that the UE connects including the 4th transmitting element and the 4th Unit is received, wherein:
4th transmitting element, breaks down for the first SBC in Session Border Controller SBC ponds And after the first SBC recovers, registration request is sent to the 2nd SBC, the 2nd SBC is described Other SBC in SBC ponds in addition to the first SBC;
4th receiving unit, for receive S-CSCF transmission forbid registration indicate.
13. UE according to claim 12, it is characterised in that the UE also includes the 5th and received Unit, the 5th transmitting element, the 6th receiving unit and the 6th transmitting element, wherein:
5th receiving unit, the deactivation for receiving mobile management entity MME transmission carries request, Carried in the deactivation carrying request and reactivate instruction;
5th transmitting element, for reactivating instruction in deactivation carrying request, to MME Send IMS PDN and rebuild message;
6th receiving unit, after being connected with MME reconstructions IMS PDN, UE receives PDN The Session Border Controller SBC lists that gateway is sent, carry SBC precedence informations in SBC lists;
6th transmitting element, for according to SBC from the SBC precedence informations to highest priority Send registration request.
14. UE according to claim 13, it is characterised in that in the SBC precedence informations The one SBC SBC of priority ratio the 2nd priority is high, and accordingly, the 6th transmitting element is used for UE sends registration request according to the SBC precedence informations to the first SBC.
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