CN104602225A - Distributive MME (Mobile Management Entity) device - Google Patents
Distributive MME (Mobile Management Entity) device Download PDFInfo
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- CN104602225A CN104602225A CN201510019609.8A CN201510019609A CN104602225A CN 104602225 A CN104602225 A CN 104602225A CN 201510019609 A CN201510019609 A CN 201510019609A CN 104602225 A CN104602225 A CN 104602225A
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Abstract
The invention discloses a distributive MME (Mobile Management Entity) device. The device comprises a global main control board and N service handling boards, wherein the global main control board is used for distributing the service processing boards and temporary user identifications to UE, wherein one temporary user identification includes the distributed service handling board identification; after receiving a message carrying the temporary user identification from the UE, the service handling boards determine a service board for handling the message according to the service handling board identification included in the temporary user identifications. With the adoption of the distributive MME device, the message can be handled, and moreover, the message handling can be distributed to a plurality of service handling boards; the plurality of service handling boards are arranged to improve the capacity of the distributive MME device, and therefore, the distributive MME device can handle more UE.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of distributed MME equipment.
Background technology
Under LTE (Long Term Evolution, the Long Term Evolution) network architecture, wireless communication system is made up of wireless access network and core net.Wireless access network is realized by eNB (evolved NodeB, enode b, i.e. base station), and core net is realized by EPC (Evolved Packet Core, the packet-based core networks of evolution).EPC is realized by MME (Mobility Management Entity, Mobility Management Entity) equipment, SGW (Serving Gateway, gateway) equipment, PGW (PDN Gateway, PDN Gateway) equipment.MME equipment is the Mobility Management Entity of core net, is responsible for mobile management and the session management of UE (User Equipment, subscriber equipment).
Under LTE network framework, in certain area coverage, usually only dispose a set of equipment of the core network, and a MME equipment only configures one piece of service processing board.MME network element, as EPC core network mobility management entity, preserve the mobility context of UE, safe context and bearer context.The context of a UE takies about 9000 bytes, i.e. about 10KB, and 100,000 UE just need the internal memory of about 1GB.Consider the memory costs such as the internal memory shared by operating system, configuration 100,000 UE, a MME equipment needs to provide 2.8GB internal memory.
But, the maximum full configuration of next block service processing board of normal conditions can support that 100,000 UE are simultaneously online, differ greatly online while at least supporting up to ten million and even more UE with a set of equipment of the core network required for actual conditions, this just makes equipment of the core network have very high capacity performance index just to meet the demands.
Summary of the invention
Embodiments provide a kind of distributed MME equipment, in order to increase the capacity of a MME equipment.
The embodiment of the present invention provides a kind of distributed Mobility Management Entity MME equipment, comprising: overall master control borad and N number of service processing board, N>1;
Described overall master control borad is used for, and is user equipment (UE) distribution service disposable plates and interim subscriber identity, and stores the corresponding relation between the permanent subscriber identification of described UE and the Business Processing panel sign distributed; Wherein, the interim subscriber identity of a user and the permanent subscriber identification one_to_one corresponding of this user, and comprise distributed Business Processing panel sign in an interim subscriber identity;
Described service processing board is used for, receipt message, if carry interim subscriber identity in described message, then obtain the Business Processing panel sign that the interim subscriber identity that carries in described message comprises, if the service processing board got is designated this Business Processing panel sign, then process described message, otherwise the service processing board corresponding to Business Processing panel sign got described in described message being transmitted to processes.
Preferably, described service processing board also for:
If after receiving message, from described message, do not get interim subscriber identity only get permanent subscriber identification, then send inquiry request to described overall master control borad, in described inquiry request, carry the permanent subscriber identification got; And, receive the inquiry response that described overall master control borad returns, if the service processing board carried in described inquiry response is designated this Business Processing panel sign, then process described message, otherwise the service processing board be transmitted to corresponding to the Business Processing panel sign carried in described inquiry response processes by described message;
Described overall master control borad specifically for:
Receive described inquiry request, described corresponding relation is inquired about according to the permanent subscriber identification carried in described inquiry request, if inquire corresponding Business Processing panel sign, then the Business Processing panel sign inquired is carried on inquiry response and sends to the service processing board of initiating described inquiry request; Otherwise, corresponding interim subscriber identity and Business Processing panel sign is distributed according to the permanent subscriber identification carried in described inquiry request, store the corresponding relation between this permanent subscriber identification and the Business Processing panel sign distributed, and distributed Business Processing panel sign and interim subscriber identity are carried on inquiry response send to the service processing board of initiating described inquiry request.
Preferably, described overall master control borad specifically for: according to described inquiry request, the service processing board choosing load light from described N number of service processing board distributes.
Preferably, described overall master control borad is that the interim subscriber identity that UE distributes comprises M-TMSI;
The message that UE sends is initial UE message, carries the M-TMSI of described UE in described initial UE message;
Described service processing board specifically for:
Receive the initial UE message that UE sends, obtain the M-TMSI carried in described initial UE message;
According to the M-TMSI carried in described initial UE message, obtain the Business Processing panel sign comprised in this M-TMSI.
Preferably, described overall master control borad is that the interim subscriber identity that UE distributes comprises S-TMSI, comprises M-TMSI, comprise Business Processing panel sign in described M-TIMSI in described S-TMSI;
The message that UE sends is initial UE message, carries the S-TMSI of described UE in described initial UE message;
Described service processing board specifically for:
Receive the initial UE message that UE sends, obtain the S-TMSI carried in described initial UE message;
According to the S-TMSI carried in described initial UE message, obtain the M-TMSI comprised in this S-TMSI;
According to the M-TMSI got, obtain the Business Processing panel sign comprised in this M-TMSI.
Preferably, described overall master control borad is that the interim subscriber identity that UE distributes comprises global unique temporary identity GUTI, comprises the identification information of M-TMSI and described distributed MME equipment, comprise Business Processing panel sign in described M-TMSI in described GUTI;
The message that UE sends is initial UE message, carries the GUTI that described distributed MME equipment is distributed in described initial UE message;
Described service processing board specifically for:
Receive the initial UE message that user sends, obtain in described initial UE message the additional GUTI carried;
According to the additional GUTI carried in described initial UE message, obtain the MME equipment identification information comprised in this GUTI;
If the MME equipment identification information got is identical with described distributed MME equipment identification information, Business Processing panel sign is obtained in the M-TMSI then comprised from this additional GUTI, if the service processing board got is designated this Business Processing panel sign, then process the initial UE message received, otherwise, by according to the Business Processing panel sign got, the initial UE message received is transmitted to corresponding service processing board and processes;
Described service processing board also for:
If the MME equipment identification information got is different from described distributed MME equipment identification information, then sends to described master control borad and distribute request, distribute a service processing board to process the initial UE message received to ask described master control borad.
Preferably, described service processing board also for:
If do not get UE to add GUTI from the initial UE message received, then obtain in described initial UE message the old GUTI carried;
According to described old GUTI, obtain the MME equipment identification information comprised in this old GUTI;
If the MME equipment identification information got is identical with described distributed MME equipment identification information, Business Processing panel sign is obtained in the M-TMSI then comprised from this old GUTI, if the service processing board got is designated this Business Processing panel sign, then process the initial UE message received, otherwise, by according to the Business Processing panel sign got, the initial UE message received is transmitted to corresponding service processing board and processes;
If the MME equipment identification information got is different from described distributed MME equipment identification information, then sends to described master control borad and distribute request, distribute a service processing board to process the initial UE message received to ask described master control borad.
Preferably, described master control borad also for:
Receive the distribution request that described service processing board sends;
According to described distribution request, the service processing board choosing load light from described N number of service processing board distributes.
Preferably, the interim subscriber identity that described overall master control borad distributes comprises MME_UE-SIAP_ID;
The message that UE sends is non-initial UE message, carries the MME_UE-SIAP_ID of described UE in described non-initial UE message;
Described service processing board specifically for:
Receive the non-initial UE message that UE sends, obtain the MME_UE-SIAP_ID carried in described non-initial UE message;
According to the MME_UE-SIAP_ID carried in described non-initial UE message, obtain the Business Processing panel sign comprised in this MME_UE-SIAP_ID.
Preferably, described permanent subscriber identification is international mobile subscriber identity IMSI.
The embodiment of the present invention provides one to comprise the distributed MME equipment of overall master control borad and N (N>1) individual service processing board, wherein, overall situation master control borad is UE distribution service disposable plates and interim subscriber identity, comprises distributed Business Processing panel sign in an interim subscriber identity; Service processing board receive UE send carry the message of interim subscriber identity after, which this message of business board process the Business Processing panel sign that can comprise according to interim subscriber identity wherein, determine by; Thus on the one hand, achieve the process of distributed MME equipment to message, on the other hand, Message Processing can be shared multiple service processing board.Because distributed MME equipment has multiple service processing board, improve the capacity of this distributed MME equipment, make this distributed MME can process more UE.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly introduced, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The distributed MME equipment schematic diagram of one that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is that in the embodiment of the present invention, overall master control borad is that the M-TMSI that user distributes forms schematic diagram;
Fig. 3 is that in the embodiment of the present invention, overall master control borad forms schematic diagram for user distributes MME_UE_S1AP_ID;
Fig. 4 is the non-initial UE Message Processing schematic flow sheet that the embodiment of the present invention realizes based on distributed MME equipment;
Fig. 5 is the initial UE message handling process schematic diagram that the embodiment of the present invention realizes based on distributed MME equipment.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, and obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
The distributed MME equipment schematic diagram of one that Fig. 1 provides for the embodiment of the present invention, comprising: overall master control borad 101 and N number of service processing board 102, N>1.
N number of service processing board 102 is all connected with overall master control borad 101, is full syndeton between N number of service processing board 102, that is, service processing board 102 is connected with all existing between all the other N-1 service processing board 102.Connect by interconnect port between service processing board 102, be connected by management port between service processing board 102 with overall master control borad 101.
Described overall master control borad 101 for, be UE distribution service disposable plates and interim subscriber identity, and store the corresponding relation between the permanent subscriber identification of described UE and the Business Processing panel sign distributed; Wherein, the interim subscriber identity of a UE and this UE permanent subscriber identification one_to_one corresponding, and comprise distributed Business Processing panel sign in an interim subscriber identity;
Described service processing board 102 for, receipt message, if carry interim subscriber identity in described message, then obtain the Business Processing panel sign that the interim subscriber identity that carries in described message comprises, if the service processing board got is designated this Business Processing panel sign, then process described message, otherwise the service processing board corresponding to Business Processing panel sign got described in described message being transmitted to processes.
In the embodiment of the present invention, described user's permanent identification can be IMSI (International MobileSubscriber Identification Number, international mobile subscriber identity).
Further, in the embodiment of the present invention, each service processing board 102 can report self loading condition to overall master control borad 101 according to setting cycle.
Further, if after service processing board 102 receives message, if do not get interim subscriber identity only get permanent subscriber identification from described message, then send inquiry request to described overall master control borad, in described inquiry request, carry the permanent subscriber identification got; And, receive the inquiry response that described overall master control borad returns, if the service processing board carried in described inquiry response is designated this Business Processing panel sign, then process described message, otherwise the service processing board be transmitted to corresponding to the Business Processing panel sign carried in described inquiry response processes by described message.
Correspondingly, after overall situation master control borad 101 receives described inquiry request, described corresponding relation is inquired about according to the permanent subscriber identification carried in described inquiry request, if inquire corresponding Business Processing panel sign, then the Business Processing panel sign inquired is carried on inquiry response and sends to the service processing board of initiating described inquiry request; Otherwise, corresponding interim subscriber identity and Business Processing panel sign is distributed according to the permanent subscriber identification carried in described inquiry request, store the corresponding relation between this permanent subscriber identification and the Business Processing panel sign distributed, and distributed Business Processing panel sign and interim subscriber identity are carried on inquiry response send to the service processing board of initiating described inquiry request.
In said process, preferably, the loading condition that described overall master control borad 101 can report according to described inquiry request and N number of service processing board, the service processing board choosing load light from described N number of service processing board distributes, thus realizes the load balancing between this N number of service processing board.
By describing above and can finding out, in the distributed MME equipment that the embodiment of the present invention provides, comprise the distributed MME equipment of overall master control borad and N (N>1) individual service processing board, wherein, overall situation master control borad is UE distribution service disposable plates and interim subscriber identity, comprises distributed Business Processing panel sign in an interim subscriber identity; Service processing board receive UE send carry the message of interim subscriber identity after, which this message of business board process the Business Processing panel sign that can comprise according to interim subscriber identity wherein, determine by; On the one hand, achieve the process of distributed MME equipment to message, on the other hand, Message Processing can be shared multiple service processing board.Because distributed MME equipment has multiple service processing board, improve the capacity of this distributed MME equipment, make this distributed MME can process more UE.
Above-mentioned overall master control borad 101 can be UE and distributes multiple interim subscriber identity; such as; M-TMSI (M-Temporary Mobile Subscriber Identity can be distributed; M-Temporary Mobile Subscriber Identity), S-TMSI, GUTI (Globally Unique Temporary UE Identity; the unique interim UE mark in the whole world) etc.; these interim subscriber identity are used in UE and the mutual message of core net; such as; in initial UE message; unique identification UE, is used for protecting the IMSI of UE stolen to prevent.Above-mentioned overall master control borad 101 also can be UE and distributes the interim subscriber identity such as MME_UE-SIAP_ID.MME_UE-SIAP_ID can be used for distributed MME equipment at S1 interface unique identification UE; this interim subscriber identity is used in the mutual message of core net and base station; such as; non-initial UE message; more specifically; in such as S1-AP message, unique identification UE, is used for protecting the IMSI of UE stolen to prevent.The interim subscriber identity that a distributed MME equipment is distributed, has uniqueness in this distributed MME equipment inside.
Wherein, described initial UE message can include but not limited to the message of following kind: Attach Request message, LAU (Location Area Update, location area updating) request message, connection setup complete message, detach request message, business request information etc.Described non-initial UE message can include but not limited to the message of following kind: in service request process, and MME sends to the initial context of eNB to set up request message, and eNB sends to the initial context of MME to set up message; In handoff procedure, source eNB sends to the handover request message of MME, and MME sends to the handoff completion message of source eNB.
As previously mentioned, the interim subscriber identity that overall master control borad 101 distributes for UE can comprise M-TMSI.The M-TMSI of a UE and the IMSI one_to_one corresponding of this UE, can replace IMSI as described distributed MME equipment and user's unique identification when communicating between this UE.
Distributed Business Processing panel sign is comprised in the M-TMSI that overall situation master control borad 101 distributes.In the embodiment of the present invention, Business Processing panel sign can be arranged on the higher bit bit position of M-TMSI, also can be arranged on low bit part, the embodiment of the present invention does not limit the position that service processing board is identified in M-TMSI.
Preferably, Business Processing panel sign is arranged on the higher bit bit position of M-TMSI by the embodiment of the present invention.Fig. 2 shows a kind of data structure including the M-TMSI of Business Processing panel sign.As shown in Figure 2, the high 10bit of M-TMSI represents the mark of service processing board, and low 22bit represents the unique identification of user.Wherein, the mark of service processing board can use the sequence number that powers on of this service processing board to characterize.
If the message that UE sends is initial UE message, the M-TMSI of described UE is carried in described initial UE message, after then service processing board 102 receives the initial UE message of UE transmission, the M-TMSI carried in described initial UE message can be got, thus according to the M-TMSI carried in described initial UE message, obtain the Business Processing panel sign comprised in this M-TMSI, and then can determine it is by this initial UE message of this service processing board process, or by other this initial UE message of service processing board process.If determine by other this initial UE message of service processing board process, then by the inter-connection links between service processing board, corresponding service processing board this initial UE message is sent to process.
As previously mentioned, the interim subscriber identity that overall master control borad 101 distributes for UE can comprise S-TMSI, and IMSI can be replaced as described distributed MME equipment and user's unique identification when communicating between this UE.Such as, unique identification UE in paging flow process or service request flow process, to ensure the safety of communication process.
The S-TMSI of a UE and the IMSI one_to_one corresponding of this UE.S-TMSI is obtained by MMEC (MME code, MME code) and M-TMSI computing, and wherein, MMEC is the code of this distributed MME equipment, for this distributed MME equipment of unique identification, comprises distributed Business Processing panel sign in M-TMSI.In the embodiment of the present invention, Business Processing panel sign can be arranged on the higher bit bit position of M-TMSI, also can be arranged on low bit part, the embodiment of the present invention does not limit the position that service processing board is identified in M-TMSI.Preferably, Business Processing panel sign is arranged on the higher bit bit position of M-TMSI by the embodiment of the present invention, such as, as shown in Figure 2.
If the message that UE sends is initial UE message, the S-TMSI of described UE is carried in described initial UE message, after then service processing board 102 receives the initial UE message of UE transmission, the S-TMSI carried in described initial UE message can be got, thus according to the S-TMSI carried in described initial UE message, get the Business Processing panel sign comprised in M-TMSI in this S-TMSI and this M-TMSI, and then can determine it is by this initial UE message of this service processing board process, or by other this initial UE message of service processing board process.If determine by other this initial UE message of service processing board process, then by the inter-connection links between service processing board, corresponding service processing board this initial UE message is sent to process.
As previously mentioned, overall master control borad is that the interim subscriber identity that UE distributes comprises GUTI, and this GUTI can replace IMSI as described distributed MME equipment and user's unique identification when communicating between this UE.GUTI is distributed when UE performs attachment or TAU by MME.
The GUTI of a UE and the IMSI one_to_one corresponding of this user, GUTI is obtained by GUMMEI and M-TMSI computing, and GUMMEI is used for the MME that unique identification distributes this GUTI, and M-TMSI is used for the UE in this MME of unique identification.Wherein, GUMMEI is by MCC (Mobile Country Code, Mobile Country Code MCC), MNC (Mobile Network Code, Mobile Network Code) and MME ID (MME mark) formation, MME ID is made up of MME GroupID (MME group mark) and MMEC.Distributed Business Processing panel sign is comprised in this M-TMSI.In the embodiment of the present invention, Business Processing panel sign can be arranged on the higher bit bit position of M-TMSI, also can be arranged on low bit part, the embodiment of the present invention does not limit the position that service processing board is identified in M-TMSI.Preferably, Business Processing panel sign is arranged on the higher bit bit position of M-TMSI by the embodiment of the present invention, such as, as shown in Figure 2.
Usually, when UE carries out network attachment for the first time, the serving MME of this UE is this UE distribution GUTI.When UE carries out TAU, target MME can distribute new GUTI for this UE, is called additional GUTI (can be described as additional GUTI), and the original GUTI of this UE is called old GUTI (can be described as old GUTI).When source MME and target MME is not same MME, old GUTI and the additionalGUTI of this UE is not identical, and when source MME is identical with target MME, the old GUTI of this UE is identical with additional GUTI.
In the embodiment of the present invention, if the message that UE sends is initial UE message, the additional GUTI of described UE is carried in described initial UE message, after then service processing board 102 receives the initial UE message of UE transmission, the additional GUTI carried can be got in described initial UE message, thus according to the additional GUTI carried in described initial UE message, obtain the MME equipment identification information comprised in this GUTI; If the MME equipment identification information got is identical with described distributed MME equipment identification information, then show that current distributed MME equipment is the MME distributing this additional GUTI, Business Processing panel sign is obtained in the M-TMSI then comprised from this GUTI, and then can determine it is by this initial UE message of this service processing board process, or by other this initial UE message of service processing board process.If determine by other this initial UE message of service processing board process, then by the inter-connection links between service processing board, corresponding service processing board this initial UE message is sent to process.
If the message that UE sends is initial UE message, do not carry the additional GUTI of this UE in described initial UE message but carry the old GUTI of described UE, after then service processing board 102 receives the initial UE message of UE transmission, the old GUTI carried in described initial UE message can be got, thus according to the old GUTI carried in described initial UE message, obtain the MME equipment identification information comprised in this old GUTI; If the MME equipment identification information got is identical with described distributed MME equipment identification information, then show that current distributed MME equipment is identical with the MME distributing this old GUTI, Business Processing panel sign is obtained in the M-TMSI then comprised from this old GUTI, and then can determine it is by this initial UE message of this service processing board process, or by other this initial UE message of service processing board process.If determine by other this initial UE message of service processing board process, then by the inter-connection links between service processing board, corresponding service processing board this initial UE message is sent to process.If the MME equipment identification information got is different from described distributed MME equipment identification information, show that current distributed MME equipment is not identical with the MME distributing this oldGUTI, then send to described master control borad and distribute request, distribute a service processing board to process the initial UE message received to ask described master control borad.
As previously mentioned, the interim subscriber identity that overall master control borad 101 distributes for UE can comprise MME_UE-SIAP_ID, and MME_UE-SIAP_ID can replace IMSI, as the user unique identification of distributed MME equipment at S1 interface.
The MME_UE-SIAP_ID of a UE and the IMSI one_to_one corresponding of this user, and comprise distributed Business Processing panel sign in a MME_UE-SIAP_ID.In the embodiment of the present invention, Business Processing panel sign can be arranged on the higher bit bit position of MME_UE-SIAP_ID, also can be arranged on low bit part, the embodiment of the present invention does not limit the position that service processing board is identified in MME_UE-SIAP_ID.
Preferably, Business Processing panel sign is arranged on the higher bit bit position of MME_UE-SIAP_ID by the embodiment of the present invention.Fig. 3 shows a kind of data structure including the MME_UE-SIAP_ID of Business Processing panel sign.As shown in Figure 3, the high 10bit of MME_UE_S1AP_ID represents the mark of service processing board, and low 22bit represents the unique identification of user.Wherein, the mark of service processing board can use the sequence number that powers on of this service processing board to characterize.
Due in the embodiment of the present invention, distributed MME equipment can be UE and distributes multiple interim subscriber identity, and different interim subscriber identity can be used for different signaling processes.Therefore, can be defined in different types of signaling process, the service processing board of distributed MME equipment obtains the interim subscriber identity of which kind of type from the message received, thus determines by this service processing board or other service processing boards to process this message.More preferably, also can provide a kind of general flow process, service processing board obtains interim subscriber identity according to this generalized flowsheet from the message received.
The message that in the embodiment of the present invention, UE sends is non-initial UE message or initial UE message, for more clearly understanding the present invention, specifically illustrates the handling process of above-mentioned distributed MME equipment below respectively for non-initial UE message and initial UE message.
After distributed MME equipment receives message, first judge whether it is initial UE message, if initial UE message, then perform flow process as shown in Figure 5, if non-initial UE message, then perform flow process as shown in Figure 4.
Wherein, as previously mentioned, initial UE message comprises polytype message, according to type of message, distributed MME equipment can judge whether the message be currently received is initial UE message.Whether distributed MME equipment can be also NAS (Non-access stratum according to the message be currently received, Non-Access Stratum) message or S1-AP message judges, such as, if the message be currently received is NAS message, it is then initial UE message, if the message be currently received is S1-AP message, be then non-initial UE message.
See Fig. 4, be the non-initial UE Message Processing schematic flow sheet realized based on above-mentioned distributed MME equipment, this flow process can comprise:
Step 401, after a service processing board of distributed MME equipment receives non-initial UE message, obtains the MME_UE-SIAP_ID carried in non-initial UE message; Wherein, non-initial UE message can be distributed any one service processing board reception of formula MME equipment;
Step 402, according to the MME_UE-SIAP_ID carried in described non-initial UE message, obtains the Business Processing panel sign comprised in this MME_UE-SIAP_ID;
Step 403, judges whether the Business Processing panel sign obtained is this service processing board, if so, then performs step 404, if not, then perform step 405;
Step 404, this service processing board processes this non-initial UE message;
Step 405, sends to corresponding service processing board to process this non-initial UE message according to Business Processing panel sign.
See Fig. 5, be the initial UE message handling process schematic diagram that the embodiment of the present invention realizes based on above-mentioned distributed MME equipment, this flow process can comprise:
Step 501, after a service processing board of distributed MME equipment receives initial UE message, judges whether carry interim subscriber identity in this initial UE message, if having, then performs step 505, if do not have, then performs step 502; Wherein, initial UE message can be distributed any one service processing board reception of formula MME equipment.
Step 502, obtains the IMSI carried in this initial UE message.
Step 503 ~ 504, send inquiry request to described overall master control borad, carry the IMSI got in described inquiry request; Receive the inquiry response that overall master control borad returns, carry Business Processing panel sign in this inquiry response, and perform step 515.
In this step, after overall master control borad receives inquiry request, according to the IMSI carried in this inquiry request, inquire about the corresponding relation between the IMSI of this overall master control borad preservation and service processing board, and carry out respective handling according to Query Result, specifically comprise:
If inquire corresponding service processing board, be then likely the initial UE message sent in UE reattachment process, then the mark of the service processing board inquired carried the service processing board sending to inquiry response and initiate this inquiry request;
If do not inquire corresponding service processing board, it is likely then the initial UE message sent in the first attaching process of UE, core net distributes interim subscriber identity also to this UE, then distribute a service processing board, and the mark of the service processing board of distribution is carried on the service processing board that query response message sends to this inquiry request of initiation, and the corresponding relation set up between this IMSI and this service processing board, further, overall situation master control borad also for this UE distributes interim subscriber identity, comprises the mark of distributed service processing board in this interim subscriber identity.
Preferably, when overall master control borad is according to the IMSI distribution service disposable plates of carrying in inquiry request, can, according to the loading condition of all service processing boards, the low service processing board of load be selected to distribute.
Step 505, the type according to the interim subscriber identity carried in this initial UE message carries out respective handling.Wherein, if interim subscriber identity is M-IMSI, then perform step 506, if S-TMSI, then perform step 507, if GUTI, then perform step 508.
In this step, preferably, service processing board can be in the following order, interim subscriber identity in initial UE message is identified: first judge whether this interim subscriber identity is M-TMSI, if not, judge whether this interim subscriber identity is S-TIMS again, if not, then judge whether this interim subscriber identity is GUTI.Because GUTI may comprise additional GUTI and old GUTI, therefore can first obtain additional GUTI, if do not get additional GUTI, then obtain old GUTI.
Step 506, obtains the M-IMSI carried in this initial UE message, according to this M-TMSI, obtains the Business Processing panel sign comprised in this M-TMSI, and performs step 514.
Step 507, obtains the S-TMSI carried in this initial UE message, and this S-TMSI comprises M-IMSI, obtains the Business Processing panel sign comprised in this M-IMSI, and performs step 514.
Step 508, judges whether there is additional GUTI in this initial UE message, if exist, then performs step 509, if do not exist, then performs step 510.
Step 509, obtains the identification information of the distributed MME equipment in additional GUTI and additional GUTI, and performs step 511.
Step 510, obtains the identification information of the distributed MME equipment in old GUTI and old GUTI, and performs step 511.
Whether step 511, be the information of this distributed MME equipment according to the identification information of the distributed MME equipment got, if so, then perform step 512, if not, then perform step 513.
Step 512, obtains the Business Processing panel sign in GUTI, and performs step 514.
Step 513, sends to overall master control borad and distributes request, to make overall master control borad ask according to this distribution, choose this initial UE message of service processing board process, and by assignment response by the service processing board identification feedback chosen to this service processing board.
Preferably, after overall situation master control borad receives this distribution request, according to the loading condition of all service processing boards, distribute a service processing board, and the mark of the service processing board of distribution is carried on the service processing board that assignment response message sends to this distribution request of initiation.
Step 514, judges whether the Business Processing panel sign got is this Business Processing panel sign, if so, then performs step 515, if not, then perform step 516.
Step 515, this service processing board processes this initial UE message.
Step 516, according to Business Processing panel sign, sends to corresponding service processing board to process this initial UE message.
From above content, the embodiment of the present invention provides one to comprise the distributed MME equipment of overall master control borad and N (N>1) individual service processing board, wherein, overall situation master control borad is UE distribution service disposable plates and interim subscriber identity, comprises distributed Business Processing panel sign in an interim subscriber identity; Service processing board receive UE send carry the message of interim subscriber identity after, which this message of business board process the Business Processing panel sign that can comprise according to interim subscriber identity wherein, determine by; Thus on the one hand, achieve the process of distributed MME equipment to message, on the other hand, Message Processing can be shared multiple service processing board.Because distributed MME equipment has multiple service processing board, improve the capacity of this distributed MME equipment, make this distributed MME can process more UE.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a distributed Mobility Management Entity MME equipment, is characterized in that, comprising: overall master control borad and N number of service processing board, N>1;
Described overall master control borad is used for, and is user equipment (UE) distribution service disposable plates and interim subscriber identity, and stores the corresponding relation between the permanent subscriber identification of described UE and the Business Processing panel sign distributed; Wherein, the interim subscriber identity of a user and the permanent subscriber identification one_to_one corresponding of this user, and comprise distributed Business Processing panel sign in an interim subscriber identity;
Described service processing board is used for, receipt message, if carry interim subscriber identity in described message, then obtain the Business Processing panel sign that the interim subscriber identity that carries in described message comprises, if the service processing board got is designated this Business Processing panel sign, then process described message, otherwise the service processing board corresponding to Business Processing panel sign got described in described message being transmitted to processes.
2. equipment as claimed in claim 1, is characterized in that, described service processing board also for:
If after receiving message, from described message, do not get interim subscriber identity only get permanent subscriber identification, then send inquiry request to described overall master control borad, in described inquiry request, carry the permanent subscriber identification got; And, receive the inquiry response that described overall master control borad returns, if the service processing board carried in described inquiry response is designated this Business Processing panel sign, then process described message, otherwise the service processing board be transmitted to corresponding to the Business Processing panel sign carried in described inquiry response processes by described message;
Described overall master control borad specifically for:
Receive described inquiry request, described corresponding relation is inquired about according to the permanent subscriber identification carried in described inquiry request, if inquire corresponding Business Processing panel sign, then the Business Processing panel sign inquired is carried on inquiry response and sends to the service processing board of initiating described inquiry request; Otherwise, corresponding interim subscriber identity and Business Processing panel sign is distributed according to the permanent subscriber identification carried in described inquiry request, store the corresponding relation between this permanent subscriber identification and the Business Processing panel sign distributed, and distributed Business Processing panel sign and interim subscriber identity are carried on inquiry response send to the service processing board of initiating described inquiry request.
3. equipment as claimed in claim 2, is characterized in that, described overall master control borad specifically for: according to described inquiry request, the service processing board choosing load light from described N number of service processing board distributes.
4. equipment as claimed in claim 1 or 2, is characterized in that, described overall master control borad is that the interim subscriber identity that UE distributes comprises M-TMSI;
The message that UE sends is initial UE message, carries the M-TMSI of described UE in described initial UE message;
Described service processing board specifically for:
Receive the initial UE message that UE sends, obtain the M-TMSI carried in described initial UE message;
According to the M-TMSI carried in described initial UE message, obtain the Business Processing panel sign comprised in this M-TMSI.
5. equipment as claimed in claim 1 or 2, is characterized in that, described overall master control borad is that the interim subscriber identity that UE distributes comprises S-TMSI, comprises M-TMSI, comprise Business Processing panel sign in described M-TIMSI in described S-TMSI;
The message that UE sends is initial UE message, carries the S-TMSI of described UE in described initial UE message;
Described service processing board specifically for:
Receive the initial UE message that UE sends, obtain the S-TMSI carried in described initial UE message;
According to the S-TMSI carried in described initial UE message, obtain the M-TMSI comprised in this S-TMSI;
According to the M-TMSI got, obtain the Business Processing panel sign comprised in this M-TMSI.
6. equipment as claimed in claim 1 or 2, it is characterized in that, described overall master control borad is that the interim subscriber identity that UE distributes comprises global unique temporary identity GUTI, comprise the identification information of M-TMSI and described distributed MME equipment in described GUTI, in described M-TMSI, comprise Business Processing panel sign;
The message that UE sends is initial UE message, carries the GUTI that described distributed MME equipment is distributed in described initial UE message;
Described service processing board specifically for:
Receive the initial UE message that user sends, obtain in described initial UE message the additional GUTI carried;
According to the additional GUTI carried in described initial UE message, obtain the MME equipment identification information comprised in this GUTI;
If the MME equipment identification information got is identical with described distributed MME equipment identification information, Business Processing panel sign is obtained in the M-TMSI then comprised from this additional GUTI, if the service processing board got is designated this Business Processing panel sign, then process the initial UE message received, otherwise, by according to the Business Processing panel sign got, the initial UE message received is transmitted to corresponding service processing board and processes;
Described service processing board also for:
If the MME equipment identification information got is different from described distributed MME equipment identification information, then sends to described master control borad and distribute request, distribute a service processing board to process the initial UE message received to ask described master control borad.
7. equipment as claimed in claim 6, is characterized in that, described service processing board also for:
If do not get UE to add GUTI from the initial UE message received, then obtain in described initial UE message the old GUTI carried;
According to described old GUTI, obtain the MME equipment identification information comprised in this old GUTI;
If the MME equipment identification information got is identical with described distributed MME equipment identification information, Business Processing panel sign is obtained in the M-TMSI then comprised from this old GUTI, if the service processing board got is designated this Business Processing panel sign, then process the initial UE message received, otherwise, by according to the Business Processing panel sign got, the initial UE message received is transmitted to corresponding service processing board and processes;
If the MME equipment identification information got is different from described distributed MME equipment identification information, then sends to described master control borad and distribute request, distribute a service processing board to process the initial UE message received to ask described master control borad.
8. equipment as claimed in claims 6 or 7, is characterized in that, described master control borad also for:
Receive the distribution request that described service processing board sends;
According to described distribution request, the service processing board choosing load light from described N number of service processing board distributes.
9. equipment as claimed in claim 1 or 2, is characterized in that, the interim subscriber identity that described overall master control borad distributes comprises MME_UE-SIAP_ID;
The message that UE sends is non-initial UE message, carries the MME_UE-SIAP_ID of described UE in described non-initial UE message;
Described service processing board specifically for:
Receive the non-initial UE message that UE sends, obtain the MME_UE-SIAP_ID carried in described non-initial UE message;
According to the MME_UE-SIAP_ID carried in described non-initial UE message, obtain the Business Processing panel sign comprised in this MME_UE-SIAP_ID.
10. equipment as claimed in any one of claims 1-9 wherein, it is characterized in that, described permanent subscriber identification is international mobile subscriber identity IMSI.
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| CN104602225B (en) | 2018-04-13 |
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