CN102388656B - Method for processing network congestion, network device and network system - Google Patents
Method for processing network congestion, network device and network system Download PDFInfo
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- CN102388656B CN102388656B CN201080001619.4A CN201080001619A CN102388656B CN 102388656 B CN102388656 B CN 102388656B CN 201080001619 A CN201080001619 A CN 201080001619A CN 102388656 B CN102388656 B CN 102388656B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/02—Access restriction performed under specific conditions
- H04W48/06—Access restriction performed under specific conditions based on traffic conditions
Abstract
The present invention discloses a method for processing network congestion, a network device and a network system. The present method comprises: an access network device receives an indication message including an access control mode sent by a mobility management network element, wherein the indication message is sent after the mobility management network element acquires network congestion; the access network device rejects or delays the access of the terminal according to the indication message, and receives the access of the terminal when the reject time reached the preset time threshold value or the relay reached the specified delay value. The present invention can relieve the network congestion state and avoid the further deterioration of the network congestion.
Description
Technical field
The present invention relates to mobile communication technology, particularly relate to a kind of network congestion processing method, the network equipment and network system.
Background technology
Intelligent terminal (Smart Phone), except all features possessing ordinary terminal, is also provided with operating system, can installs more application program.Intelligent terminal has following features: always online, be simultaneously registered to voice and data network, continually with network side synchrodata, have heartbeat mechanism and constantly attempt be registered to the third generation (3G) network.Based on These characteristics, intelligent terminal in use can roll up with internetwork signaling amount, probably causes network congestion.
In existing network framework, even if during network side overload, network side still can receive the access request of any terminal, and is Terminal for service as far as possible.Intelligent terminal, after 3G network attempts the failure of certain number of times, can select the second generation (2G) network; Whether no matter adhere to successfully at 2G network, if find that there is 3G network, intelligent terminal all can attempt 3G network again at once, causes a large amount of signaling consumptions, and may cause network paralysis.In addition, for the situation that network equipment is restarted, current intelligent terminal can initiate a large amount of to re-establish packet data protocol (Packet Data Protocol, PDP) contextual process, causes network side instantaneous delivery to transship.In addition, be not only intelligent terminal, the terminal for other types also likely causes network congestion.Realizing, in process of the present invention, in prior art, lacking the solution of suitable alleviating network congestion.
Summary of the invention
The embodiment of the present invention is to provide a kind of network congestion processing method, the network equipment and network system, in order to alleviating network congestion situation, avoids the further deterioration of network congestion.
Embodiments provide a kind of network congestion processing method, comprising:
The Indication message comprising access control mode that access network equipment receiving mobility managed network element sends, described Indication message is that mobile management network element sends after knowing network congestion, described access control mode comprises: restriction international mobile subscriber identity IMSI access, or limit priority accesses, or limiting terminal type accesses, or allow the terminal access of request priority business;
Access network equipment according to described Indication message, refusal or the access of time delay terminal, and refuse number of times reach default frequency threshold value or time delay reach the delay value of specifying time, the access of receiving terminal.
The embodiment of the present invention additionally provides a kind of network congestion processing method, comprising:
Access network equipment knows network congestion;
Access network equipment is according to the priority in terminal temporary mark, and limiting terminal accesses.
Embodiments provide a kind of network equipment, comprising:
Receiver module, for the Indication message comprising access control mode that receiving mobility managed network element sends, described Indication message is that mobile management network element sends after knowing network congestion, described access control mode comprises: restriction international mobile subscriber identity IMSI access, or limit priority accesses, or limiting terminal type accesses, or allow the terminal access of request priority business;
Processing module, for according to described Indication message, the access of refusal or time delay terminal, and refuse number of times reach default frequency threshold value or time delay reach the delay value of specifying time, the access of receiving terminal.
The embodiment of the present invention additionally provides a kind of network equipment, comprises;
Know module, know network congestion for access network equipment;
Limiting module, for access network equipment according to the priority in terminal temporary mark, limiting terminal accesses.
Embodiments provide a kind of network system, comprising:
Mobile management network element, for knowing network congestion, and Indication message is sent after knowing network congestion, access control mode is comprised in described Indication message, described access control mode comprises: restriction international mobile subscriber identity IMSI access, or limit priority accesses, or the access of limiting terminal type, or allow the terminal access of request priority business;
Access network equipment, for according to described Indication message, the access of refusal or time delay terminal, and refuse number of times reach default frequency threshold value or time delay reach the delay value of specifying time, the access of receiving terminal.
As shown from the above technical solution, the embodiment of the present invention is by after generation network congestion, and refusal or the access of time delay terminal, can alleviating network congestion situation, avoids congested further deterioration.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is 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.
Fig. 1 is the method flow schematic diagram of first embodiment of the invention;
Fig. 2 is the method flow schematic diagram of second embodiment of the invention;
Fig. 3 is the method flow schematic diagram of third embodiment of the invention;
Fig. 4 is the method flow schematic diagram of fourth embodiment of the invention;
Fig. 5 is the method flow schematic diagram of fifth embodiment of the invention;
Fig. 6 is the device structure schematic diagram of sixth embodiment of the invention;
Fig. 7 is the device structure schematic diagram of seventh embodiment of the invention;
Fig. 8 is the system configuration schematic diagram of eighth embodiment of the invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the method flow schematic diagram of first embodiment of the invention, comprising:
Step 11: the Indication message comprising access control mode that access network equipment receiving mobility managed network element sends, described Indication message is that mobile management network element sends after knowing network congestion;
Wherein, mobile management network element can be can be packet switching (Packet Switched, PS) mobile management network element in territory, such as, service universal packet wireless business business system (General Packet Radio Service, GPRS) support node (Serving GPRS Support Node, SGSN) or mobile management entity (Mobile Management Entity, MME); Also can be the mobile switching centre (Mobile Switch Center, MSC) in circuit switching (Circuit Switched, CS) territory.Access network equipment can be base station controller (Base Station Controller, BSC), radio network controller (Radio Network Controller, RNC) or evolution base station (eNodeB).Certainly, above-mentioned equipment of the core network and the title of access network equipment need to carry out according to network system different corresponding.
Access control mode comprises restriction international mobile subscriber identity (International Mobile Subscriber Identity, IMSI) access, or limit priority accesses, or the access of limiting terminal type, or allow the terminal access of request priority business.
In addition, mobile management network element knows that network congestion can be mobile management network element or self is congested, or knows that other network element is congested.Wherein, other network element is congested can be gateway (Serving Gateway, SGW), Packet Data Network (Packet Data Network, PDN) gateway (PDN Gateway, PGW), Gateway GPRS Support Node (Gateway GPRS Serving Node, GGSN), the equipment of the core network such as home subscriber server (Home Subscriber Server, HSS), attaching position register (Home Location Register, HLR) is congested or access network equipment is congested.
Take mobile management network element as MME be example, then MME or the congested mode of other network element can be as follows:
Mode one, if after sending a request message to HLR or HSS, GGSN, SGW, PGW or access network equipment, do not receive corresponding response message within the time preset, then knows that HLR or HSS, GGSN, SGW, PGW or access network equipment are congested;
Or,
Mode two, if HLR or HSS, GGSN, SGW, PGW or access network equipment dedicated bandwidth reaches the threshold value preset time, MME receives the notice that network element that dedicated bandwidth reaches the threshold value preset sends and congested notification message occurs, and knows that corresponding network element is congested according to described notification message.
Step 12: access network equipment according to described Indication message, refusal or the access of time delay terminal.
Wherein, the access of refusal or time delay terminal can be specially and send refusal wireless heterogeneous networks (Radio Resource Control, RRC) connection establishment request according to described Indication message to terminal.
Particularly, when described access control mode is for restriction IMSI access, access network equipment, to the terminal of all employing IMSI access, sends the request of refusal RRC connection establishment; Or,
When described access control mode is for restriction terminal type, access network equipment, to all terminals belonging to Limit Type, sends the request of refusal RRC connection establishment after the described terminal belonging to Limit Type accesses; Or,
When described access control mode is limit priority access, access network equipment judges User Priority, and refuse the request of RRC connection establishment to priority lower than the terminal transmission of priority threshold value, wherein, comprise cause value and priority threshold value in described access control mode, described cause value instruction Access Network carries out two priority classes; Or,
When described access control mode is the terminal access allowing request priority business, access network equipment only accepts request the RRC connection establishment request of terminal of priority business.
Further, access network equipment can send the request of refusal RRC connection establishment to terminal, and register reject number of times, when reaching the frequency threshold value preset, the access of receiving terminal.
In addition, the terminal in the embodiment of the present invention is not limited to intelligent terminal, is also applicable to the terminal of other types, such as the terminal of Machine To Machine (Machine to Machine).
The present embodiment is by after generation network congestion, and refusal or the access of time delay terminal, can alleviating network congestion situation, avoids congested further deterioration.
Fig. 2 is the method flow schematic diagram of second embodiment of the invention, and the present embodiment is for mobile management network element refusal or the access of time delay terminal.See Fig. 2, the present embodiment comprises:
Step 21: terminal sends access request to mobile management network element.
Wherein, this access request can be that attachment request, tracking area/terminal such as router update request or service request are to the message of network registry or request resource.
Step 22: mobile management network element knows that self is congested or other network element is congested.
Wherein, can know that other network element is congested in the following way:
Mode one, mobile management network element sends a request message to other network element, if do not receive corresponding response message in certain hour (this time can preset), then knows that other network element is congested;
Or,
Mode two, when the dedicated bandwidth of other network element reaches certain threshold value (this threshold value can preset), send a notification message to mobile management network element, this notification message shows that other network element is congested.
Wherein, step 21 and step 22 are without sequential restriction relation.
Step 23: mobile management network element sends refusal access request to terminal.
Wherein, the title of this refusal access request can be service request refusal, attachment refusal, location updating refusal etc., and concrete title does not limit, and is all to refuse or the access of time delay terminal.Refusal access request can be Non-Access Stratum (Non-Access Stratum, NAS) signaling.
In addition, this refusal access request can be refuse the access of terminal or the access of time delay terminal, wherein, after the access of refusal terminal reaches certain number of times, can adopt interim accepting method.Specific as follows:
Mode one, refusal terminal accepts after accessing certain number of times temporarily: mobile management network element sends refusal access request to terminal, and register reject number of times, when reaching the frequency threshold value preset, the access of receiving terminal.
In prior art, when terminal does not have successful access network, again can send access request to network side, if still unsuccessful after attempting certain number of times (such as 3G is defined as 5 times at present), then select to be stationed other networks, such as, be stationed 2G network.But, due to the characteristic of some terminal, such as, intelligent terminal can constantly be attempted accessing 3G, even if then intelligent terminal quarters at 2G, if it finds to there is 3G network around, so terminal still can attempt constantly registering to 3G network, and this can cause signaling traffic to increase.
In order to avoid signaling increases, the present embodiment can adopt the interim accepting method described in mode one.Be specifically as follows: when the number of times that terminal attempts access is less than the number of times that Current protocol specify or when network occurs congested, though the access of network side receiving terminal now network side also do not differentiate that successfully whether can accept user accesses.Such as, attempt the 4th of access in terminal, even if network side does not also receive receiveing the response of discriminating, also can the access of receiving terminal.Or when network occurs congested, even if the discriminating that now network does not also obtain terminal is receiveed the response, network side still can receiving terminal access thus avoid terminal and select other network insertions (such as 2G network).
But because network side is still congested, can not ensure as terminal provides normal service, so can record at network side can not be temporarily this Terminal for service, how record and do not limit, such as can be recorded as temp-attached etc.If terminal now request resource carries out business, then network side can send refuse information to terminal, and Reason For Denial value can be notification terminal latency request resource.
By interim acceptance, the registration of terminal repeating between heterogeneous networks can be avoided, reduce signaling traffic, alleviating network congestion.
Mode two, time delay terminal accesses: mobile management network element sends refusal access request to terminal, and comprise delay value in this refusal access request, terminal is in the time re-accessing network that this delay value is specified.
Particularly, can comprise Reason For Denial value and back off timer in this refusal access request, Reason For Denial value can be network congestion or indicating terminal time delay access.
Delay value in back off timer is the time of network side designated terminal time delay access, and the time that this delay value is attempted again accessing than existing terminal is long.Such as, in prior art, after terminal attempts access network failure, date greatly and again again to attempt at about 20 seconds accessing.And the delay value of specifying in the present embodiment can be greater than the time interval that existing trial accesses again, such as, can be set as 30 minutes, then terminal will attempt access after 30 minutes again, instead of after 20 seconds, again attempt access.
By specifying delay value, can alleviating network congestion.
In addition, if the access request of user is service request procedure, network side can according to situations such as the available resources (such as the Congestion Level SPCC of each network element) in this terminal type (whether being such as Priority Service user), each network element optionally for terminal sets up corresponding carrying, such as, preferentially set up the bearing resource that service quality (Quality of Service, QoS) is higher, or, the suitable QoS reducing request carrying, economizes on resources.
The present embodiment, can alleviating network congestion by refusal or the access of time delay terminal; Meanwhile, the present embodiment is refused by core net or the access of time delay terminal, and can realize take terminal as the web impact factor of granularity.
Fig. 3 is the method flow schematic diagram of third embodiment of the invention, and the present embodiment is for access network equipment refusal or the access of time delay terminal.See Fig. 3, the present embodiment comprises:
Step 31: when core network congestion, mobile management network element sends Indication message to access network equipment, comprises connection control method in this Indication message, so that access network equipment is refused according to described access control mode message or the access of time delay terminal.
Wherein, access control refers to the access of refusal or time delay counterpart terminal, in addition, the access of refusal or time delay terminal can comprise the access of the terminal only allowing other types, such as, when only allowing the terminal access of asking priority business, still can be understood as the access of refusal or time delay terminal, the terminal of now refusal or time delay is the terminal of not asking priority business.This access control mode can be restriction IMSI access, limit priority access, the access of limiting terminal type or the terminal access allowing request priority business.Particularly, restriction IMSI access adopts the terminal access of IMSI in order to refusal or time delay, limit priority access accesses in order to the terminal of refusal or time delay low priority, the access of restriction particular terminal type, in order to the terminal access of refusal or certain particular type of time delay, allows the terminal access of request priority business to refuse in order to the terminal of only access request priority business or time delay does not have the terminal access of priority.
Particularly, for restriction IMSI access: Access Network does not resolve NAS layer message when terminal and core network communications usually, therefore, Access Network can not know the type of message between concrete terminal and core net, but Access Network can know the mark in the message between terminal and core net, can be distinguished this and be designated formal mark or temporary mark.In addition, what adopt when terminal and network-side communication under normal circumstances is temporary mark, such as, Temporary Mobile Subscriber Identity (Temporary Mobile Subscriber Identity, TMSI), Packet-TMSI (Packet TMSI, P-TMSI), global unique temporary identity (Globally Unique Temporary Identity, GUTI) etc.
Such as, so in the present embodiment, if network side occurs congested, core net can adopt formal mark by indicating terminal, and, IMSI, accesses again.Afterwards, Access Network is distinguished terminal according to temporary mark and formal mark, and refusal or time delay adopt the access of the terminal of formal mark.
Or when the terminal that core net does not need to refuse or time delay has communicated, core net also can not send indicating terminal to terminal and adopt the message of IMSI, and core net just notice Access Network refusal or time delay adopts the access of the terminal of IMSI.Because the terminal newly networked will adopt IMSI, then the terminal that now Access Network can be refused or time delay newly networks, also can alleviating network congestion to a certain extent.
The present embodiment sends to terminal the message that indicating terminal adopts IMSI by for core net.
Limit priority is accessed: in existing mechanism, the distribution of temporary mark is all controlled by operator, usual operator can allow certain bits wherein indicate special implication, therefore, in the present embodiment, priority can be represented by these certain bits, such as, for P-TMSI, network resource identifier (Network Resource Identifier wherein can be adopted, NRI) position, i.e. a few bit representation priority in 14 to 23 of P-TMSI.
When the access control mode that core net sends is limit priority access, this access control mode can specifically comprise cause value and priority threshold value, this cause value instruction Access Network carries out two priority classes, afterwards, access network equipment judges User Priority, and refuses the access of priority lower than the terminal of this priority threshold value.
Further, be limit priority for access control mode, access network equipment can judge User Priority in the following way: equipment of the core network judges User Priority according to the characteristic information in temporary mark, wherein, when adopt above-mentioned in NRI, comprise priority time, this characteristic information can be NRI.
For the situation of limit priority, do not need core net to send the message adopting IMSI again to access to terminal, just need the mark to adopting during existing communication to improve, such as, in temporary mark, increase precedence information.
Be similar to priority, also can with a few bit-identify terminal types in temporary mark, to refuse to make Access Network or time delay is a certain or the access of the terminal of several types.
Or core net also can notify that Access Network only receives the access request of the terminal of request priority business, such as: only allow the RRC connection establishment request that the terminal of request priority business is initiated, and refusal or time delay do not have the access of the terminal of priority.The overload start message that such as can send to Access Network in core net increases enumerated value " Permit high priority access session only ", and concrete title is not limit, in order to indicate the terminal of access network equipment access request priority business.Wherein, terminal can comprise the relevant information of terminal in the access request sending to access network equipment, can determine whether terminal asks priority business according to this relevant information Access Network, afterwards, the information whether Access Network has priority according to this carries out above-mentioned control.
The access control mode of the present embodiment will to refuse IMSI access.
In addition, mobile management network element knows that the mode that self is congested or other network element is congested can specifically see step 22.
Step 32: terminal sends access request to mobile management network element.
Wherein, this access request can be that attachment request, tracking area/terminal such as router update request or service request are to the message of network registry or request resource.
In addition, the terminal iidentification comprised in this access request is temporary mark, such as TMSI, P-TMSI or GUTI etc.
Step 33: mobile management network element returns refusal access request to terminal, this refusal access request indicating terminal adopts IMSI again to access.
Wherein, the mobile management network element of the present embodiment is for the mobile management network element in PS territory.
Wherein, mobile management network element can refuse the access of all terminals, then now send this refusal access request to all terminals.Or mobile management network element, according to the NE type of terminal iidentification or request, selects a part of terminal to refuse, then now to needing the part terminal of refusal to send this refusal access request.Such as, mobile management network element controls with the connected terminal access of a certain network element (as GGSN/HSS), or according to the matching relationship of temporary mark and IMSI, the terminal controlling certain IMSI scope accesses.
Reason For Denial value can be comprised in this refusal access request, such as, " terminal iidentification network side can not identify (UE identity cannot be derived by the network) ", so, terminal can send access request to network side again, and adopts IMSI in the access request resend.
Step 34: terminal sends wireless heterogeneous networks (Radio Resource Control, RRC) connection establishment request to access network equipment, comprises IMSI in this RRC connection establishment request.
Step 35: access network equipment returns the request of refusal RRC connection establishment to terminal.
Because access network equipment has received the Indication message of the refusal IMSI that mobile management network element sends, therefore, when comprising IMSI in the RRC connection establishment request that terminal sends, access network equipment will refuse this terminal.
Wherein, the request of this refusal RRC connection establishment can be the access of refusal or time delay terminal, such as, during for refusal, and register reject number of times, the access of receiving terminal when reaching certain number of times; Or, in the request of this refusal RRC connection establishment, comprise delay value, to make terminal re-accessing network after the time that this delay value is specified.The principle identical with the mode one in step 23 or mode two specifically can be adopted to realize.
In addition, after core network congestion is removed, mobile management network element can notify that access network equipment is removed controls.That is, can also comprise:
Step 36: after core network congestion is removed, mobile management network element sends to access network equipment message of removing controls, and removes the access control to terminal.
Be understandable that, when Access Network self is congested, does not need to receive the Indication message that core net sends, directly can be refused by Access Network or the access of time delay terminal, the principle of the second embodiment can be adopted to realize.
The present embodiment, can alleviating network congestion by refusal or the access of time delay terminal; Meanwhile, the present embodiment is refused by Access Network or the access of time delay terminal, because Access Network is widely distributed, more than core net, and the tupe of notice is fairly simple, and load is not too large, can realize more effective alleviation.
Fig. 4 is the method flow schematic diagram of fourth embodiment of the invention, and the present embodiment take equipment of the core network as mobile switching centre is example.When PS territory, under normal circumstances, terminal adopts temporary mark when re-accessing network, if need to adopt IMSI, needs core net notification terminal to adopt IMSI.And when CS territory, terminal can adopt IMSI to access when gravity treatment access network, so, when CS territory, do not need equipment of the core network notification terminal to adopt IMSI.
See Fig. 4, the present embodiment comprises:
Step 41: when core network congestion, mobile switching centre sends Indication message to access network equipment, comprises access control mode in this Indication message, so that the access of the terminal that access network equipment is refused or this access control mode of time delay is corresponding.
Specifically can see step 31.
Step 42: terminal sends access request to mobile switching centre.
Wherein, this access request can be that attachment request, tracking area/terminal such as router update request or service request are to the message of network registry or request resource.
In addition, the terminal iidentification comprised in this access request is temporary mark, such as TMSI etc.
Step 43: mobile switching centre abandons this access request.
Wherein, mobile switching centre can abandon the access request of the terminal of all transmission access requests, or, select the access request abandoning part terminal, such as, abandon the access request that some needs the terminal sending message to congested network element device, and the access request normal process to other terminal.
Step 44: terminal does not receive the response message that mobile switching centre sends within a certain period of time, then terminal sends the request of RRC connection establishment to access network equipment again, comprises IMSI in this RRC connection establishment request.
Due in CS territory, can IMSI be adopted when terminal re-accessing network, therefore, not need mobile switching centre to send to terminal the message that indicating terminal adopts IMSI.
Step 45: access network equipment returns the request of refusal RRC connection establishment to terminal.
Specifically can see step 35.
The above-mentioned access being core net and indicating Access Network control terminal, is understandable that, also can be similar to the first embodiment, by the access of the direct control terminal of mobile switching centre.
The present embodiment, can alleviating network congestion by refusal or the access of time delay terminal; Meanwhile, for the feature of CS, not needing core net notification terminal to adopt IMSI when again accessing, can signaling consumption be reduced.
Above-mentionedly in Indication message, comprising access control mode for core net, can also be that Access Network is configured, and is knowing the access of terminal of congested rear restriction low priority.Specific as follows:
Fig. 5 is the method flow schematic diagram of fifth embodiment of the invention, comprising:
Step 51: access network equipment knows network congestion;
Wherein, can be that access network equipment knows that self is congested, or receive the message showing core network congestion of core net transmission.
Step 52: access network equipment is according to the priority in terminal temporary mark, and limiting terminal accesses.
Wherein, be specifically as follows access network equipment and judge User Priority, and refuse the request of radio resource control RRC connection establishment to priority lower than the terminal transmission of the priority threshold value preset.
Further, described access network equipment judges User Priority, comprising: access network equipment, according to the characteristic information in temporary mark, judges described User Priority.
Characteristic information in this temporary mark can be NRI, comprises the precedence information of user in described NRI.
Particularly, which is similar to the mode of limit priority in the 3rd embodiment, needs equally to improve temporary mark, in this temporary mark, comprises precedence information.With the mode of limit priority in the 3rd embodiment unlike, the present embodiment does not need core net to issue the Indication message of this limit priority, but, Access Network, after knowing network congestion, directly limits the terminal access of low priority (this threshold value can be pre-configured in access network equipment).
The present embodiment, can alleviating network congestion by refusal or the access of time delay terminal; Meanwhile, the present embodiment is refused by Access Network or the access of time delay terminal, because Access Network is widely distributed, more than core net, and the tupe of notice is fairly simple, and load is not too large, can realize more effective alleviation; Further, the present embodiment directly controls after knowing network congestion, can reduce signaling consumption further.
Fig. 6 is the device structure schematic diagram of sixth embodiment of the invention, comprises receiver module 61 and processing module 62; The Indication message comprising access control mode that receiver module 61 sends for receiving mobility managed network element, described Indication message is that mobile management network element sends after knowing network congestion; Processing module 62 for according to described Indication message, the access of refusal or time delay terminal.
Wherein, described access control mode comprises: restriction IMSI access, or limit priority access, or the access of limiting terminal type, or the terminal access allowing request priority business; Described processing module 62 is specifically for sending the request of refusal radio resource control RRC connection establishment according to described Indication message to terminal.
Particularly, this processing module 62 can comprise first module 621, second unit 622, the 3rd unit 623 or the 4th unit 624; First module 621 is for when described access control mode is for restriction IMSI access, and access network equipment, to the terminal of all employing IMSI access, sends the request of refusal RRC connection establishment; Second unit 622 is for when described access control mode is for restriction terminal type, and access network equipment, to all terminals belonging to Limit Type, sends the request of refusal RRC connection establishment after the described terminal belonging to Limit Type accesses; When 3rd unit 623 is for being limit priority access when described access control mode, access network equipment judges User Priority, and refuse the request of RRC connection establishment to priority lower than the terminal transmission of priority threshold value, wherein, comprise cause value and priority threshold value in described access control mode, described cause value instruction Access Network carries out two priority classes; When 4th unit 624 is for being the terminal access allowing request priority business when described access control mode, access network equipment only accepts request the RRC connection establishment request of terminal of priority business.
Further, this processing module 62 can be further used for sending the request of refusal RRC connection establishment to terminal, and register reject number of times, when reaching the frequency threshold value preset, the access of receiving terminal.
The present embodiment, can alleviating network congestion by refusal or the access of time delay terminal; Meanwhile, the present embodiment is refused by Access Network or the access of time delay terminal, because Access Network is widely distributed, more than core net, and the tupe of notice is fairly simple, and load is not too large, can realize more effective alleviation.
Fig. 7 is the device structure schematic diagram of seventh embodiment of the invention, comprises and knows module 71 and limiting module 72; Know that module 71 knows network congestion for access network equipment; Limiting module 72 is for access network equipment according to the priority in terminal temporary mark, and limiting terminal accesses.
Wherein, described limiting module 72 specifically for judging User Priority, and can refuse the request of radio resource control RRC connection establishment to priority lower than the terminal transmission of the priority threshold value preset.
Further, the precedence information of described limiting module 72 specifically for comprising according to the network resource identifier in temporary mark, judges described User Priority.
The present embodiment, can alleviating network congestion by refusal or the access of time delay terminal; Meanwhile, the present embodiment is refused by Access Network or the access of time delay terminal, because Access Network is widely distributed, more than core net, and the tupe of notice is fairly simple, and load is not too large, can realize more effective alleviation; Further, the present embodiment directly controls after knowing network congestion, can reduce signaling consumption further.
Fig. 8 is the system configuration schematic diagram of eighth embodiment of the invention, comprises mobile management network element 81 and access network equipment 82; Mobile management network element 81 for knowing network congestion, and sends Indication message after knowing network congestion, comprises access control mode in described Indication message; Access network equipment 82 for according to described Indication message, the access of refusal or time delay terminal.
Wherein, access control mode can be restriction IMSI access, or limit priority access, or the access of limiting terminal type, or allows the terminal access of request priority business.
When described access control mode accesses for restriction IMSI for the described indication information of restriction, described mobile management network element 81 also for sending refusal access request to terminal, adopts IMSI re-accessing network to make described terminal after receiving described refusal access request.
Or when this mobile management network element is MSC, described MSC is also for abandoning the access request that described terminal sends.
The present embodiment, can alleviating network congestion by refusal or the access of time delay terminal; Meanwhile, the present embodiment is refused by Access Network or the access of time delay terminal, because Access Network is widely distributed, more than core net, and the tupe of notice is fairly simple, and load is not too large, can realize more effective alleviation.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (19)
1. a network congestion processing method, is characterized in that, comprising:
The Indication message comprising access control mode that access network equipment receiving mobility managed network element sends, described Indication message is that mobile management network element sends after knowing network congestion, described access control mode comprises: restriction international mobile subscriber identity IMSI access, or limit priority accesses, or limiting terminal type accesses, or allow the terminal access of request priority business;
Access network equipment according to described Indication message, refusal or the access of time delay terminal, and refuse number of times reach default frequency threshold value or time delay reach the delay value of specifying time, the access of receiving terminal.
2. method according to claim 1, is characterized in that, described access network equipment is according to described Indication message, and the access of refusal or time delay terminal, comprising:
Access network equipment sends the request of refusal radio resource control RRC connection establishment according to described Indication message to terminal.
3. method according to claim 2, is characterized in that, described access network equipment sends the request of refusal RRC connection establishment according to described Indication message to terminal, comprising:
When described access control mode is for restriction IMSI access, access network equipment, to the terminal of all employing IMSI access, sends the request of refusal RRC connection establishment;
Or,
When described access control mode is for restriction terminal type, access network equipment, to all terminals belonging to Limit Type, sends the request of refusal RRC connection establishment after the described terminal belonging to Limit Type accesses;
Or,
When described access control mode is limit priority access, access network equipment judges User Priority, and refuse the request of RRC connection establishment to priority lower than the terminal transmission of priority threshold value, wherein, comprise cause value and priority threshold value in described access control mode, described cause value instruction Access Network carries out two priority classes;
Or,
When described access control mode is the terminal access allowing request priority business, access network equipment only accepts request the RRC connection establishment request of terminal of priority business.
4. method according to claim 3, is characterized in that, described access network equipment judges User Priority, comprising:
The precedence information that access network equipment comprises according to the network resource identifier in temporary mark, judges described User Priority.
5. method according to claim 2, is characterized in that, described access network equipment sends the request of refusal RRC connection establishment according to described Indication message to terminal, comprising:
Access network equipment sends the request of refusal RRC connection establishment to terminal, and register reject number of times, when reaching the frequency threshold value preset, the access of receiving terminal.
6. method according to claim 1, is characterized in that, described mobile management network element is Mobility Management Entity MME, described in know network congestion, comprising:
Know that self is congested, or, know that attaching position register HLR or home subscriber server HSS, gateway general packet radio service system support node GGSN, gateway SGW, packet data network gateway PGW or access network equipment are congested.
7. method according to claim 6, is characterized in that, described in know that HLR or HSS, GGSN, SGW, PGW or access network equipment are congested, comprising:
If after sending a request message to HLR or HSS, GGSN, SGW, PGW or access network equipment, do not receive corresponding response message within the time preset, then know that HLR or HSS, GGSN, SGW, PGW or access network equipment are congested;
Or,
If HLR or HSS, GGSN, SGW, PGW or access network equipment dedicated bandwidth reaches the threshold value preset time, receive the notice that network element that dedicated bandwidth reaches the threshold value preset sends and congested notification message occurs, know that corresponding network element is congested according to described notification message.
8. a network congestion processing method, is characterized in that, comprising:
Access network equipment knows network congestion;
Access network equipment is according to the priority in terminal temporary mark, and limiting terminal accesses.
9. method according to claim 8, is characterized in that, described access network equipment is according to the priority in terminal temporary mark, and limiting terminal accesses, and comprising:
Access network equipment judges User Priority, and refuses the request of radio resource control RRC connection establishment to priority lower than the terminal transmission of the priority threshold value preset.
10. method according to claim 9, is characterized in that, described access network equipment judges User Priority, comprising:
The precedence information that access network equipment comprises according to the network resource identifier in temporary mark, judges described User Priority.
11. 1 kinds of network equipments, is characterized in that, comprising:
Receiver module, for the Indication message comprising access control mode that receiving mobility managed network element sends, described Indication message is that mobile management network element sends after knowing network congestion, described access control mode comprises: restriction international mobile subscriber identity IMSI access, or limit priority accesses, or limiting terminal type accesses, or allow the terminal access of request priority business;
Processing module, for according to described Indication message, the access of refusal or time delay terminal, and refuse number of times reach default frequency threshold value or time delay reach the delay value of specifying time, the access of receiving terminal.
12. equipment according to claim 11, is characterized in that,
Described processing module is specifically for sending the request of refusal radio resource control RRC connection establishment according to described Indication message to terminal.
13. equipment according to claim 12, is characterized in that, described processing module comprises:
First module, for when described access control mode is for restriction IMSI access, access network equipment, to the terminal of all employing IMSI access, sends the request of refusal RRC connection establishment;
Or,
Second unit, for when described access control mode is for restriction terminal type, access network equipment, to all terminals belonging to Limit Type, sends the request of refusal RRC connection establishment after the described terminal belonging to Limit Type accesses;
Or,
Unit the 3rd, during for being limit priority access when described access control mode, access network equipment judges User Priority, and refuse the request of RRC connection establishment to priority lower than the terminal transmission of priority threshold value, wherein, comprise cause value and priority threshold value in described access control mode, described cause value instruction Access Network carries out two priority classes;
Or,
Unit the 4th, during for being the terminal access allowing request priority business when described access control mode, access network equipment only accepts request the RRC connection establishment request of terminal of priority business.
14. equipment according to claim 12, is characterized in that, described processing module is further used for sending the request of refusal RRC connection establishment to terminal, and register reject number of times, when reaching the frequency threshold value preset, the access of receiving terminal.
15. 1 kinds of network equipments, is characterized in that, comprising:
Know module, know network congestion for access network equipment;
Limiting module, for access network equipment according to the priority in terminal temporary mark, limiting terminal accesses.
16. equipment according to claim 15, is characterized in that, described limiting module specifically for judging User Priority, and refuses the request of radio resource control RRC connection establishment to priority lower than the terminal transmission of the priority threshold value preset.
17. equipment according to claim 16, is characterized in that, the precedence information of described limiting module specifically for comprising according to the network resource identifier in temporary mark, judges described User Priority.
18. 1 kinds of network systems, is characterized in that, comprising:
Mobile management network element, for knowing network congestion, and Indication message is sent after knowing network congestion, access control mode is comprised in described Indication message, described access control mode comprises: restriction international mobile subscriber identity IMSI access, or limit priority accesses, or the access of limiting terminal type, or allow the terminal access of request priority business;
Access network equipment, for according to described Indication message, the access of refusal or time delay terminal, and refuse number of times reach default frequency threshold value or time delay reach the delay value of specifying time, the access of receiving terminal.
19. systems according to claim 18, is characterized in that,
Described access control mode is for the described indication information of restriction is for limiting international mobile subscriber identity IMSI access; Described mobile management network element also for sending refusal access request to terminal, adopts IMSI re-accessing network to make described terminal after receiving described refusal access request;
Or,
Described mobile management network element is moving exchanging center MSC, and described MSC is also for abandoning the access request that described terminal sends.
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| PCT/CN2010/074507 WO2011160308A1 (en) | 2010-06-25 | 2010-06-25 | Method for processing network congestion, network device and network system |
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