CN101459928B - Overload notification method between network elements - Google Patents
Overload notification method between network elements Download PDFInfo
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- CN101459928B CN101459928B CN2008100904640A CN200810090464A CN101459928B CN 101459928 B CN101459928 B CN 101459928B CN 2008100904640 A CN2008100904640 A CN 2008100904640A CN 200810090464 A CN200810090464 A CN 200810090464A CN 101459928 B CN101459928 B CN 101459928B
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Abstract
The invention provides a method for notifying overload between element locations, which is utilized by service gateways for notifying self overload situation to a moving management body. The method comprises sending overload notification to the moving management body when the service gateways detect self overload, wherein the overload notification carries identifiers of the service gateways. In answer to the overload notification, the moving management body adds the identifiers of the service gateways into an overload service gateway list, wherein service gateways in the overload service gateway list will not be chosen as service gateways of users. Through utilizing the method for notifying overload between element locations of the invention, load of the service gateway is reduced, overload balance between the service gateways is realized, failure rate of business establishment is reduced, and users' experience is enhanced.
Description
Technical field
The present invention relates to communication technical field, particularly, relate to the overload notification method between a kind of network element.
Background technology
Evolution packet network (Evolved Packet System, abbreviating EPS as) system is typical mobile communication system, as shown in Figure 1, whole EPS system is divided into (the Evolved UMTS of land radio access web system, abbreviate E-UTRAN as) and core net (EvovledPacket Core is called for short EPC) two parts.
In EPC, comprised home subscriber server (Home Subscriber Server, abbreviate HSS as), Mobility Management Entity (Mobility Management Entity, abbreviate MME as), gateway (Serving Gateway, abbreviate S-GW as), grouped data network gateway (Packet Data Network Gateway, abbreviate PDN-GW or P-GW as), wherein:
HSS is the permanent storage place of user contracting data, is positioned at the home network that the user contracts;
MME is the chain of command network element in the EPS network, be the storage place of user contracting data in current network, be responsible for Non-Access Stratum (the Non-Access Stratum of terminal to network, abbreviate NAS as) tracking under signaling management, safety and checking, the user's idle pulley and paging management function and bearer management, tracking area tabulation (Tracking Area List, abbreviate TA List as) management, in addition, MME also be responsible for adhere to, the gateway (SGW) of situation such as position renewal, bearer management and the selection function of packet data gateway (PGW);
S-GW is the user's veil unit in the EPS network, it is the gateway that core net arrives wireless system, being the local anchor point that switches between the base station, also is the mobility anchor point between 3G (Third Generation) Moblie network (ThirdGeneration Partnership Project the abbreviates 3GPP as) internal network.Gateway is responsible for terminal (User Equipment, abbreviate UE as) to the user plane bearer of core net, the metadata cache the terminal idle pulley under, network side initiate function, Lawful Interception and the grouped data route of service request and forwarding capability, based on the charging of the up/downlink data of terminal/packet data network (Packet Data Network abbreviates PDN as), in the mark function of transport layer to dividing into groups;
P-GW is functions such as the gateway of EPS and this system's external network, the IP address assignment of responsible terminal, billing function, grouping packet filtering, application of policies.
The disposal ability of network element all has certain restriction, when distributing to managing business of network element when too much, the disposal ability that might exceed network element, cause network element to reach overload (Overload) state, if at this moment network distributes any business to this network element again, network element will be refused this business, perhaps accept this task reluctantly, if the disposal ability of network element goes beyond the limit of, will cause the handling property of network element to reduce rapidly even paralysis, thereby can not continue to provide effective service for the user.This owing to the situation that too much causes the network element performance to reduce even paralyse of managing business is that operator wishes to avoid when safeguarding mobile communications network, because above-mentioned situation greatly reduces user experience, increase the probability of professional foundation failure, influenced the reputation of operator.
The EPS network provides very high message transmission rate for the user, and wireless data rates can reach 100Mb/s.As mentioned above, in EPC, S-GW is user's veil unit, and the whole network user's data all will be through the routing forwarding of S-GW to P-GW (up) or E-UTRAN (descending), and S-GW also will carry out other work such as the switching anchor point, Lawful Interception, grouping mark of 3GPP internal network.If the number of users in EPS increases very fast, then the processor ability of S-GW and the network bandwidth will reach overload very soon, if this moment, network allowed new user's data through S-GW again, will probably cause the S-GW paralysis, and then make all service fails through this S-GW.In order to reduce the professional mortality of setting up, need a kind of scheme that can notify the overload situations of S-GW.
Summary of the invention
Consider a kind of overload situations that can notify S-GW of the needs that exist in the correlation technique scheme problem and the present invention is proposed, for this reason, the present invention aims to provide the overload notification method between a kind of network element, and the load bearing migration method.
According to an aspect of the present invention, provide the overload notification method between a kind of network element, be used for gateway and notify the overload situations of self to mobile management entity.
Comprise according to the overload notification method between the network element of the embodiment of the invention: when gateway detects when overload self occurring, send overload notification, wherein, carry the sign of gateway in the overload notification to mobile management entity; In response to overload notification, mobile management entity adds the tabulation of overload gateway with the sign of gateway, and wherein, the gateway in the tabulation of overload gateway is with not selected gateway as the user; Wherein, further carry the load bearing migration indication information in the overload notification.
In response to overload notification, mobile management entity obtains load bearing migration indication wherein, load bearing migration is arrived new gateway, and the user terminal in the carrying of moving is under the situation of state of activation, the new gateway that notice enode b load bearing migration arrives, wherein, new gateway is not in the tabulation of overload gateway.
Preferably, above-mentioned notice enode b load bearing migration to the operation of new gateway specifically comprise: mobile management entity is created the bearing modification request message, and carries the TEID of the one or more bearing marks that need migration, the new gateway address of moving to, new gateway address in the bearing modification request message; Mobile management entity sends the bearing modification request message; Should be in the bearing modification request message, enode b is revised the carrying of self, and creates the bearing modification response message, wherein, carries in the bearing modification response message: revise successful bearing mark tabulation and/or revise the bearing mark tabulation of failing; Enode b sends the bearing modification response message to described mobile management entity.
Preferably, comprise migration percentage information in the load bearing migration indication information, needing on the indicating service gateway to be used for the percentage of the carrying of moving.
Based on foregoing, preferably, this method further comprises following processing: in response to overload notification, mobile management entity obtains load bearing migration indication wherein, according to percentage information load bearing migration is arrived new gateway, and be under the situation of state of activation, the gateway that notice enode b load bearing migration arrives at the user terminal of the carrying of moving, wherein, new gateway is not in the tabulation of overload gateway.
Wherein, the operation that sends overload notification to mobile management entity is specially one of following: send overload notification message to mobile management entity; Send establishment dedicated bearer request message to mobile management entity, and in creating dedicated bearer message, carry the overload notification sign; Send the deleting bearing request message to mobile management entity, and in deleting bearing message, carry the overload notification sign; Send the renewal bearing request message to mobile management entity, and in upgrading bearer messages, carry the overload notification sign.
Preferably, mobile management entity sends the overload notification response to gateway.
Wherein, the operation that sends the overload notification response to gateway is specially one of following: send the overload notification response message to gateway; Send establishment dedicated bearer response message to gateway, and in creating dedicated bearer message, carry the overload acknowledgement indicator; Send the deleting bearing response message to gateway, and in deleting bearing message, carry the overload acknowledgement indicator; Send the renewal bearing response message to gateway, and in upgrading bearer messages, carry the overload acknowledgement indicator.
Based on foregoing, preferably, this method further comprises following processing: when gateway detects it and enters normal condition by overload, send the overload cancellation notice to mobile management entity, wherein, carry the sign of gateway in the overload cancellation notice;
In response to the overload cancellation notice, the sign of mobile management entity deletion gateway from the tabulation of overload gateway.
Wherein, the operation that sends the overload cancellation notice to mobile management entity is specially one of following: send overload cancellation notice message to mobile management entity; Send establishment dedicated bearer request message to mobile management entity, and in creating dedicated bearer message, carry overload cancellation sign; Send the deleting bearing request message to mobile management entity, and in deleting bearing message, carry overload cancellation sign; Send the renewal bearing request message to mobile management entity, and in upgrading bearer messages, carry overload cancellation sign.
Preferably, mobile management entity sends the response of overload cancellation notice to gateway.
Wherein, the operation that sends the response of overload cancellation notice to gateway is specially one of following: send overload cancellation notice response message to gateway; Send establishment dedicated bearer response message to gateway, and in creating dedicated bearer message, carry overload cancellation acknowledgement indicator; Send the deleting bearing response message to gateway, and in deleting bearing message, carry overload cancellation acknowledgement indicator; Send the renewal bearing response message to gateway, and in upgrading bearer messages, carry overload cancellation acknowledgement indicator.
Preferably, this method further comprises: mobile management entity is safeguarded the tabulation of overload gateway in advance, and upgrades the tabulation of overload gateway according to overload notification or the overload cancellation notice from gateway.
According to a further aspect in the invention, provide the overload notification method between a kind of network element, be used for gateway and notify the overload situations of self to mobile management entity.
By above-mentioned at least one technical scheme of the present invention, realized following beneficial effect: by making the overload notice mobile management entity of gateway with self, can make mobile management entity in time know the overload situations of gateway, thereby can carry out follow-up processing effectively, the new data of service gateway bearing of this overload have been avoided selecting, thereby can avoid causing this overload gateway paralysis, improve the success rate of professional foundation.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural representation according to the EPS system of correlation technique;
Fig. 2 is the flow chart according to the overload notification method between the network element of the inventive method embodiment one;
Fig. 3 is the schematic diagram of overload S-GW tabulation in the method shown in Figure 2;
Fig. 4 is the flow chart of the embodiment one of method shown in Figure 2;
Fig. 5 is the flow chart of the embodiment two of method shown in Figure 2;
Fig. 6 is the flow chart of the embodiment three of method shown in Figure 2;
Fig. 7 is the flow chart of the embodiment four of method shown in Figure 2;
Fig. 8 is the flow chart according to the overload notification method between the network element of the inventive method embodiment two;
Fig. 9 is the flow chart of the embodiment five of method shown in Figure 8;
Figure 10 is the flow chart of the embodiment six of method shown in Figure 8;
Figure 11 is the flow chart of the embodiment seven of method shown in Figure 8;
Figure 12 is the flow chart of the embodiment eight of method shown in Figure 8;
Figure 13 is according to the flow chart of the load bearing migration process in the overload notification method of the inventive method embodiment (load bearing migration of the UE of state of activation);
Figure 14 is the detailed process flow chart of load bearing migration process shown in Figure 13;
Figure 15 is according to the flow chart of another load bearing migration process in the overload notification method of the inventive method embodiment (load bearing migration of the UE of idle condition).
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Need to prove that the carrying of mentioning is the SAE carrying herein.In EPS, carrying is divided into default bearing and dedicated bearer, and default bearing is first carrying that user terminal is set up when being attached on the network, in order to obtain the IP address, foundation is connected with acquiescence PDN's; Dedicated bearer is other EPS carryings outside the default bearing.
The overload of hereinafter mentioning is meant that S-GW judges that carrying of oneself is higher than predetermined threshold, and this predetermined threshold can be a value of operator's configuration, also can be a result after mutual coordination the between the network element.What should be noted that is, overload threshold is a thresholding of network element, be owing to the professional caution value before of paralysing that too much causes, after surpassing this overload threshold, network element also can continue as user's service, but there is very big probability can cause the network element paralysis, has influence on the user of every other this network element of use.
Based on above content, describe the present invention in detail below in conjunction with accompanying drawing.
Method embodiment one
According to the embodiment of the invention, the overload notification method between a kind of network element is provided, be used for gateway (S-GW) and notify the overload situations of self to mobile management entity (MME).
Fig. 2 is the flow chart according to the overload notification method between the network element of the embodiment of the invention, and as shown in Figure 2, this method may further comprise the steps:
Step S202 when detecting of S-GW self overload occurs, sends overload notification to MME, wherein, carries the sign of S-GW in the overload notification;
Step S204, in response to overload notification, MME adds overload S-GW tabulation with the sign of S-GW, and wherein, the S-GW in the overload S-GW tabulation is with not selected gateway as the user.
Technique scheme of the present invention makes MME can know the overload situations of S-GW, thereby can reasonably select that can realize the load balancing between the S-GW, the minimizing business is set up mortality in subsequent treatment, improve user experience.
Fig. 3 is the schematic diagram according to the overload S-GW of embodiment of the invention tabulation, and as shown in Figure 3, what comprise in every is the S-GW address of overload, when MME receives overload notification message, adds corresponding S-GW in tabulation; When MME receives overload cancellation message (will be described below), the corresponding S-GW of deletion from tabulation when selecting gateway for the user, can avoid selecting these SGW by checking the SGW tabulation of overload like this.
Need to prove, further carry the load bearing migration indication information in the above-mentioned overload notification, be used for indication and carry out load bearing migration (or data channel migration), this indication can inform that MME is with the bearing part on the S-GW of overload or all migrations, particularly, feel to be necessary with self load bearing migration when alleviating self load at S-GW, perhaps when operator's decision is off line with S-GW, can in above-mentioned establishment dedicated bearer request message, comprise this load bearing migration indication, to alleviate the load of S-GW.
In addition, the load bearing migration indication can have a migration percentage information, the carrying size on the S-GW that indication MME need move.
Like this, in response to overload notification, MME obtains load bearing migration indication wherein, load bearing migration is arrived new gateway, and the UE in the described carrying of moving is under the situation of state of activation, notice eNB load bearing migration to new gateway (this will be described in detail hereinafter), wherein, new gateway is not in the tabulation of overload gateway.
Above-mentioned overload notification can realize by independent message, also can realize by means of other message.Below provided embodiment particularly at different overload notification implementations.
Embodiment one: overload notification realizes by overload notification message
Fig. 4 is the detailed process flow chart according to the overload notification method between the network element of the inventive method embodiment one, and as shown in Figure 4, this method comprises:
Step S402, S-GW judge self and transship, and decision notice mobile management entity MME is no longer accepted new service request;
Step S404, S-GW sends overload notification message to MME, comprises the S-GW address of overload in this message, and this S-GW of indication MME transships, and no longer accepts new business future.
As mentioned above, can comprise the load bearing migration indication in above-mentioned overload notification message, and the load bearing migration indication can have a migration percentage information, indication MME need go up the carrying size that migration is walked with S-GW.
Step S406, MME receive after the overload notification message, and the S-GW in this message is joined in the overload S-GW tabulation, like this, when selecting S-GW, can not select this S-GW.
In addition, if in overload notification message, also comprise the load bearing migration indication, then MME is according to the migration percentage information in this indication, respective carrier on the S-GW is moved, here, needs activate (general is described in detail in conjunction with the embodiment of load bearing migration hereinafter) to the carrying of enable mode UE and the carrying of idle pulley UE respectively.In addition, MME also can move according to the predefined percentage of operator.
Step S408, MME sends overload notification response message (or overload notification acknowledge message) to S-GW.
By above description as can be seen, by present embodiment, realized the notice of overload conditions by means of independent overload notification message.
Embodiment two: overload notification realizes by creating the dedicated bearer request message
Fig. 5 is the detailed process flow chart according to the overload notification method between the network element of the embodiment of the invention two, and as shown in Figure 5, this method comprises:
Step S502, the S-GW judgement self is transshipped, and decision notice MME no longer accepts new service request.
Step S504, S-GW send to MME and create the dedicated bearer request message, comprise overload notification sign, S-GW address in this message, indicate this S-GW to transship, and no longer accept new business.
As mentioned above, can comprise the load bearing migration indication in above-mentioned establishment dedicated bearer request message, and the load bearing migration indication can have a migration percentage information, indication MME need go up the carrying size that migration is walked with S-GW.
Step S506, MME receive and create after the dedicated bearer request message, check the content in this message, if comprise the overload notification sign in the message, then the S-GW in this message is joined in the overload S-GW tabulation, like this, when selecting S-GW, can not select this S-GW.
In addition, if in overload notification message, also comprise the load bearing migration indication, then MME moves the respective carrier on the S-GW, and respectively the carrying of enable mode user terminal and the carrying of idle mode users terminal is activated according to the migration percentage information in this indication.In addition, MME also can move according to the predefined percentage of operator.
Step S508, MME send to S-GW and create the dedicated bearer response message, comprise the overload notification response of S-GW in this message.
By above description as can be seen, in the present embodiment, by the dedicated bearer activation process that network is initiated, perhaps the dedicated bearer activation process of the resource request trigger flow of UE initiation has realized the notice of overload.
Embodiment three: overload notification realizes by the deleting bearing request message
Fig. 6 is the detailed process flow chart according to the embodiment of the overload notification method between the network element of the embodiment of the invention three, and as shown in Figure 6, this method comprises:
Step S602, the S-GW judgement self is transshipped, and decision notice MME no longer accepts new service request.
Step S604, S-GW sends the deleting bearing request message to MME, comprises overload notification sign, S-GW address in this message, indicates this S-GW to transship, and no longer accepts new business.
In addition, as mentioned above, in deletion dedicated bearer request message, can comprise the load bearing migration indication, and the load bearing migration indication can have a migration percentage information, the carrying size on the S-GW that indication MME need move.
Step S606, MME receive after the deleting bearing request message, check the content in this message, if comprise the overload notification sign in the message, then the S-GW in this message is joined in the overload S-GW tabulation, like this, when selecting S-GW, can not select this S-GW.
In addition, if in overload notification message, also comprise the load bearing migration indication, then MME moves the respective carrier on the S-GW according to the migration percentage information in this indication, and needs respectively the carrying of enable mode UE and the carrying of idle pulley UE to be activated.In addition, MME also can move according to the predefined percentage of operator.
Step S608, MME sends the deleting bearing response message to S-GW, comprises the overload notification response of S-GW in this message.
By above description as can be seen, in the present embodiment, the dedicated bearer deexcitation flow process of initiating by network, the perhaps dedicated bearer deexcitation flow process that triggers of the resource release flow initiated of UE has realized the notice of overload situations.
Embodiment four
Fig. 7 is the detailed process flow chart according to the overload notification method between the network element of the embodiment of the invention four, and as shown in Figure 7, this method comprises:
Step S702, the S-GW judgement self is transshipped, and decision notice MME no longer accepts new service request.
Step S704, S-GW send to MME and upgrade bearing request message, comprise overload notification sign, S-GW address in this message, indicate this S-GW to transship, and no longer accept new business.
In addition, as mentioned above, can comprise the load bearing migration indication in above-mentioned renewal bearing request message, and the load bearing migration indication can have a migration percentage information, indication MME need go up the carrying size that migration is walked with S-GW.
Step S706, MME receive and upgrade after the bearing request message, check the content in this message, if comprise the overload notification sign in the message, then the S-GW in this message is joined in the overload S-GW tabulation, like this, when selecting S-GW, can not select this S-GW.
In addition, if in overload notification message, also comprise the load bearing migration indication, then MME moves the respective carrier on the S-GW according to the migration percentage information in this indication, and needs respectively the carrying of enable mode UE and the carrying of idle pulley UE to be activated.And MME also can move according to the predefined percentage of operator.
Step S708, MME send to S-GW and upgrade bearing response message, comprise the overload notification acknowledge message of S-GW in this message.
By above description as can be seen, in this embodiment, the dedicated bearer of initiating by network more new technological process has been realized the notice of overload situations.
Method embodiment two
According to the embodiment of the invention, the overload notification method between a kind of network element is provided, be used for gateway and notify the overload situations of self to mobile management entity.
Fig. 8 is the flow chart according to the overload notification method between the network element of the embodiment of the invention, and as shown in Figure 8, this method may further comprise the steps:
Step S802 when S-GW detects it and enters normal condition by overload, sends the overload cancellation notice to MME, wherein, carries the sign of S-GW in the overload cancellation notice;
Step S804, in response to the overload cancellation notice, the sign of MME deletion S-GW from overload S-GW tabulation, wherein, the S-GW in the overload S-GW tabulation is with not selected gateway as the user.
By the foregoing description, as the S-GW of overload when entering normal condition, can in time notify MME, thereby making that MME is follow-up can continue to select the gateway of this S-GW as the user, has improved the success rate of professional foundation, has improved user experience.
Similar with top method embodiment one, in this embodiment, the overload cancellation notice also can be realized in several ways, below is directed to this and has provided specific embodiment respectively.
Embodiment five: the overload cancellation notice is realized by overload cancellation message (perhaps be called overload cancellation notice message, this does not influence essence of the present invention).
Fig. 9 is the detailed process flow chart according to the overload notification method between the network element of the embodiment of the invention five, and as shown in Figure 9, this method comprises:
Step S902, S-GW change normal condition into from overload detecting self, in the time of can providing service for the user, notify its MME that connects, and it can be chosen as available S-GW by MME;
Step S904, S-GW sends overload cancellation message to MME, comprises the S-GW address in the message;
Step S906, MME receive and remove the S-GW that has in this message after the above-mentioned overload cancellation message from overload S-GW tabulation that after this, MME can select the gateway of this S-GW as the user;
Step S908, MME sends overload cancellation acknowledge message (perhaps, overload cancellation notice response message, this does not influence essence of the present invention) to S-GW.
By above description as can be seen, in the present embodiment, by overload cancellation notice message, realized that S-GW is by the notice of overload to the transformation of normal condition, make MME can select the gateway of this S-GW in time, improved user experience as the user.
Embodiment six: the overload cancellation notice is realized by creating the dedicated bearer request message
Figure 10 is the detailed process flow chart according to the overload notification method between the network element of the embodiment of the invention six, and as shown in figure 10, this method comprises:
Step S1002, S-GW change normal condition into from overload detecting self, in the time of can providing service for the user, notify its MME that connects, and it can be chosen as available S-GW by MME;
Step S1004, S-GW send to MME and create the dedicated bearer request message, comprise overload cancellation sign and corresponding S-GW address in this message;
After step S1006, MME receive above-mentioned establishment dedicated bearer request message, by overload cancellation sign, remove the S-GW that has in this message from overload S-GW tabulation, after this, MME can select the gateway of this S-GW as the user;
Step S1008, MME send to S-GW and create the dedicated bearer response message, comprise overload cancellation acknowledgement indicator in this message.
By above description as can be seen, in the present embodiment, by means of creating the dedicated bearer request message, realized that S-GW is by the notice of overload to the transformation of normal condition, make MME can select the gateway of this S-GW in time, improved user experience as the user.
Embodiment seven: the overload cancellation notice is realized by the deleting bearing request message
Figure 11 is the detailed process flow chart according to the overload notification method between the network element of the embodiment of the invention seven, and as shown in figure 11, this method comprises:
Step S1102, S-GW change normal condition into from overload detecting self, in the time of can providing service for the user, notify its MME that connects, and it can be chosen as available S-GW by MME;
Step S1104, S-GW sends the deleting bearing request message to MME, comprises overload cancellation sign and corresponding S-GW address in this message;
After step S1106, MME receive above-mentioned deleting bearing request message, according to overload cancellation sign, remove the S-GW that has in this message from overload S-GW tabulation, after this, MME can select the gateway of this S-GW as the user;
Step S1108, MME sends the deleting bearing response message to S-GW, comprises overload cancellation acknowledgement indicator in this message.
By above description as can be seen, in the present embodiment, by means of the deleting bearing request message, realized that S-GW is by the notice of overload to the transformation of normal condition, make MME can select the gateway of this S-GW in time, improved user experience as the user.
Embodiment eight: the overload cancellation notice is realized by upgrading bearing request message
Figure 12 is the detailed process flow chart according to the overload notification method between the network element of the embodiment of the invention eight, and as shown in figure 12, this method comprises:
Step S1202, S-GW change normal condition into from overload detecting self, in the time of can providing service for the user, notify its MME that connects, and it can be chosen as available S-GW by MME;
Step S1204, S-GW send to MME and upgrade bearing request message, comprise overload cancellation sign and corresponding S-GW address in this message;
After step S1206, MME receive above-mentioned renewal bearing request message, according to overload cancellation sign, remove the S-GW that has in this message from overload S-GW tabulation, after this, MME can select the gateway of this S-GW as the user;
Step S1208, MME send to S-GW and upgrade bearing response message, comprise overload cancellation acknowledgement indicator in this message.
By above description as can be seen, in the present embodiment, by means of upgrading bearing request message, realized that S-GW is by the notice of overload to the transformation of normal condition, make MME can select the gateway of this S-GW in time, improved user experience as the user.
Need to prove that what more than provide can be used in combination with the notification procedure from normal condition to the overload state as S-GW that provides the method embodiment one when the notification procedure of S-GW during from overload to normal condition, also can use separately.
As indicated above, when the respective carrier on the S-GW is moved, need respectively the carrying of enable mode UE and the carrying of idle pulley UE to be activated, and be under the situation of state of activation, the new gateway that needs notice eNB load bearing migration to arrive at the UE of the carrying of moving.
Above-mentioned notice eNB load bearing migration to the operation of new gateway can specifically comprise following processing shown in Figure 13:
Step S1302, MME create the bearing modification request message, and carry the Tunnel End Point Identifier (TEID) of the one or more bearing marks that need migration, the new S-GW address of moving to, new S-GW address in the bearing modification request message;
Step S1304, MME sends the bearing modification request message to eNB;
Step S1306, in response to the bearing modification request message, eNB revises the carrying of self, and creates the bearing modification response message, wherein, carries in the bearing modification response message: revise successful bearing mark tabulation and/or revise the bearing mark tabulation of failing;
Step S1308, eNB sends the bearing modification response message to MME.
Need to prove; the load bearing migration process that provides above not only is applicable to the situation based on overload that the embodiment of the invention provides; overload migration scene for causing because of other reasons can be suitable for said method, equally all within protection scope of the present invention.
The detailed process flow process overload notification that the present invention may be better understood and the load bearing migration process that provide by Figure 14.As shown in figure 14, comprise following processing:
Step S1402 transships if MME has been known certain S-GW, and S-GW sends to and have the load bearing migration indication in the message of MME, then initiates the load bearing migration flow process according to this indication, the carrying of migration state of activation UE.Simultaneously, MME also may obtain the migration percentage information of load bearing migration indication, and knowing needs how many carryings of migration.
Step S1404, MME selects a new S-GW who does not belong in the overload S-GW tabulation at random, to alleviate the burden of overload S-GW, initiate load bearing migration, MME sends to the new S-GW that chooses earlier and sets up the carrying request, comprises in the request message: the user's face address (may be a plurality of) of the eNB of user label, the bearer context (may be a plurality of) that has old P-GW address, downlink user face and user's face TEID (may be a plurality of) and the some other necessary information of eNB.Because migration is the carrying of the UE of state of activation, so between eNB and the old S-GW carrying is arranged, therefore, MME need select a new S-GW, and it is linked to each other with corresponding eNB.Wherein, the quantity of migration carrying is relevant with the data that operator disposes with migration percentage, and perhaps the indication with S-GW is relevant.
When selecting new S-GW, MME can take into account the factor such as equilibrium of carrying between the probability, S-GW of the topology of network, less change S-GW, also will consider the ability of UE and the agreement of subscription data, such as to the support of mobility management protocol etc.
Step S1406, new S-GW receives and sets up after the carrying request, being each user's face S-GW address of carrying distribution and the TEID of this UE in the upstream on each S1-U interface, is each user's face address of carrying distribution and TEID from this UE in the old P-GW downstream data flow simultaneously.New S-GW sends more new bearer solicited message to old P-GW, comprises in this message: user label, EPS bearing mark (may be a plurality of), new S-GW user's face address (may be a plurality of) and TEID (may be a plurality of) and some other necessary information.Wherein, address and the TEID of each an EPS bearing mark and a S-GW are associated.
Step S1408, old P-GW receive more after the new bearer request, just downlink grouped data can be transferred to eNB through the path of new S-GW, sends to UE by eNB then.Old P-GW has upgraded its bearer context, and creates one and upgrade bearing response message, comprises in the message: user label, P-GW address, TEID (may be a plurality of) and other necessary informations.Old P-GW will upgrade bearing response message and send to new S-GW.
Step S1410, new S-GW receives after the more new bearer response of old P-GW, bearing response message is set up in establishment, S-GW TEID on the S1-U interface that will distribute in Fig. 3 (may be a plurality of) and S-GW address packet are contained in to set up and send to MME in the bearing response message, and MME starts a timer after receiving this message.
Step S1412, MME creates a SAE bearing modification request message, comprises in this message: the bearing mark of needs migration (may be a plurality of), new S-GW address, the TEID of new S-GW (may be a plurality of, this TEID is corresponding one by one with the bearing mark that will move).MME will comprise the address of new S-GW and the SAE bearing modification request message of TEID (may be a plurality of) sends to eNB.
Step S1414, eNB is according to the new S-GW information in the SAE bearing modification message of MME transmission, SAE carrying to oneself is made amendment, main S-GW user's face address and the S-GW TEID (may be a plurality of) that revises these carryings, and establishment SAE bearing modification response message, comprise in this message: the list of the SAE carrying that success is revised, revise the SAE bearing mark tabulation of failure.ENB sends to MME with SAE bearing modification response message.At this moment, eNB can send to P-GW through new S-GW with the upstream data from UE.
After step S1416, MME receive SAE bearing modification response message, start a timer, after this timer expiry, MME sends the deleting bearing request message to old S-GW, comprises in this message: old S-GW address, the TEID (possible a plurality of) of deleting bearing correspondence.
Step S1418, MME requires the TEID and the related resource of release among S-GW release and the step S1416, and sends the deleting bearing response message to MME, comprises in this message: user label, the mark of deleted carrying.
What more than provide is the moving method of the carrying of the state of activation UE of overload on the S-GW, for the load bearing migration process of the UE of idle condition, can understand with reference to the process that Figure 15 provides.As shown in figure 15, comprising:
Step S1502 transships if MME has been known certain S-GW, and S-GW sends to and have the load bearing migration indication in the message of MME, then initiates the load bearing migration flow process according to this indication, the carrying of migration state of activation UE.Simultaneously, MME also may obtain to accompany the migration percentage data of load bearing migration indication, and knowing needs how many carryings of migration.
Step S1504, MME selects the new S-GW of a nonoverload, to alleviate the burden of overload S-GW.Initiate load bearing migration, MME sends to the new S-GW that chooses earlier and sets up the carrying request, comprises in the request message: user label, have bearer context (may be a plurality of) and some other necessary informations of old P-GW address.
When selecting new S-GW, MME can take into account the factor such as equilibrium of carrying between the probability, S-GW of the topology of network, less change S-GW, also will consider the ability of UE and the agreement of subscription data, such as to the support of mobility management protocol etc.
If initiate when load bearing migration or S-GW receive the load bearing migration request at MME, the downlink data that comes from P-GW has been received in these carryings simultaneously, and network calls the migration flow process of above-mentioned activation carrying then and moves earlier with these bearing activations so.
Step S1506, new S-GW receive and set up after the carrying request, for each carrying from this UE in the old P-GW downstream data flow distributes user's face address and TEID.New S-GW sends more new bearer request to old P-GW, comprises in the request message: user label, EPS bearing mark (may be a plurality of), new S-GW user's face address (may be a plurality of) and TEID (may be a plurality of) and some other necessary informations.Wherein, the address of each an EPS bearing mark and a S-GW is associated with TEID.
Step S1508, old P-GW receive that older P-GW has upgraded its bearer context after the new bearer request, and create one and upgrade bearing response message, comprise in this message: user label, P-GW address, TEID (may be a plurality of), and other necessary informations.Old P-GW will upgrade bearing response message and send to new S-GW.
Step S1510, new S-GW receive after the more new bearer response of old P-GW, set up bearing response message, and S-GW TEID on the S1-U interface that will distribute in Fig. 3 (may be a plurality of) and S-GW address packet are contained in to set up and send to MME in the bearing response message.MME starts a timer after receiving this message.
Step S1512, if the timer that starts among the step S1510 is overtime, then MME sends the deleting bearing request message to old S-GW, comprises in this message: old S-GW address, the TEID (possible a plurality of) of deleting bearing correspondence.
Step S1514, MME requires the related resource of releasing bearing among the S-GW release steps S1512, and sends the deleting bearing response message to MME, comprises in this message: the mark of user label, deleted carrying.
What this method was moved is the carrying of the idle condition UE above the S-GW that transships, and this method is equally applicable to be suitable in the scene of other migration idle condition UE carrying.
As mentioned above, by means of the present invention, realized the notice of S-GW overload situations, avoided MME to continue to select the gateway of the S-GW of overload as the user, connect the mortality of setting up thereby reduced, in addition, by means of the present invention, when S-GW becomes normal condition by overload, also can in time notify to MME, can be so that MME continues to select the gateway of this S-GW as the user, improved the utilance of resource, by load bearing migration method provided by the invention, realized the load bearing migration of the UE of state of activation and idle condition, improved user experience.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. the overload notification method between a network element is used for gateway and notifies self overload situations to mobile management entity, it is characterized in that, comprising:
When gateway detects when overload self occurring, send overload notification to described mobile management entity, wherein, carry the sign of described gateway in the described overload notification;
In response to described overload notification, described mobile management entity adds the tabulation of overload gateway with the sign of described gateway, wherein, gateway in the described overload gateway tabulation is with not selected gateway as the user, wherein, further carry the load bearing migration indication information in the described overload notification;
In response to described overload notification, described mobile management entity obtains described load bearing migration indication wherein, load bearing migration is arrived new gateway, and the user terminal in the described carrying of moving is under the situation of state of activation, the described new gateway that the described load bearing migration of notice enode b arrives, wherein, described new gateway is not in described overload gateway tabulation.
2. method according to claim 1 is characterized in that, the described load bearing migration of described notice enode b to the operation of described new gateway specifically comprise:
Described mobile management entity is created the bearing modification request message, and carries the Tunnel End Point Identifier of the one or more bearing marks that need migration, the new gateway address of moving to, described new gateway address in described bearing modification request message;
Described mobile management entity sends described bearing modification request message;
In response to described bearing modification request message, described enode b is revised the carrying of self, and create the bearing modification response message, wherein, carry in the described bearing modification response message: revise successful bearing mark tabulation and/or revise the bearing mark tabulation of failing;
Described enode b sends described bearing modification response message to described mobile management entity.
3. method according to claim 1 is characterized in that, comprises migration percentage information in the described load bearing migration indication information, is used to indicate the percentage that needs the carrying of moving on the described gateway.
4. method according to claim 3 is characterized in that, further comprises:
In response to described overload notification, described mobile management entity obtains described load bearing migration indication wherein, according to described percentage information load bearing migration is arrived new gateway, and the user terminal in the described carrying of moving is under the situation of state of activation, the gateway that the described load bearing migration of notice enode b arrives, wherein, described new gateway is not in described overload gateway tabulation.
5. according to each described method in the claim 1 to 4, it is characterized in that it is one of following that the described operation that sends described overload notification to described mobile management entity is specially:
Send overload notification message to described mobile management entity;
Send establishment dedicated bearer request message to described mobile management entity, and in described establishment dedicated bearer message, carry the overload notification sign;
Send the deleting bearing request message to described mobile management entity, and in described deleting bearing message, carry the overload notification sign;
Send the renewal bearing request message to described mobile management entity, and in described renewal bearer messages, carry the overload notification sign.
6. according to each described method in the claim 1 to 4, it is characterized in that, further comprise:
Described mobile management entity sends the overload notification response to described gateway.
7. method according to claim 6 is characterized in that, it is one of following that the described operation that sends the overload notification response to described gateway is specially:
Send the overload notification response message to described gateway;
Send establishment dedicated bearer response message to described gateway, and in described establishment dedicated bearer message, carry the overload acknowledgement indicator;
Send the deleting bearing response message to described gateway, and in described deleting bearing message, carry the overload acknowledgement indicator;
Send the renewal bearing response message to described gateway, and in described renewal bearer messages, carry described overload acknowledgement indicator.
8. according to the described method of each described method in the claim 1 to 4, it is characterized in that, further comprise:
When described gateway detects it and enters normal condition by overload, send the overload cancellation notice to described mobile management entity, wherein, carry the sign of described gateway in the described overload cancellation notice;
In response to described overload cancellation notice, the sign of described mobile management entity described gateway of deletion from described overload gateway tabulation.
9. method according to claim 8 is characterized in that, it is one of following that the described operation that sends described overload cancellation notice to described mobile management entity is specially:
Send overload cancellation notice message to described mobile management entity;
Send establishment dedicated bearer request message to described mobile management entity, and in described establishment dedicated bearer message, carry overload cancellation sign;
Send the deleting bearing request message to described mobile management entity, and in described deleting bearing message, carry overload cancellation sign;
Send the renewal bearing request message to described mobile management entity, and in described renewal bearer messages, carry overload cancellation sign.
10. method according to claim 9 is characterized in that, further comprises: described mobile management entity sends the response of overload cancellation notice to described gateway.
11. method according to claim 10 is characterized in that, it is one of following that the described operation that sends the response of overload cancellation notice to described gateway is specially:
Send overload cancellation notice response message to described gateway;
Send establishment dedicated bearer response message to described gateway, and in described establishment dedicated bearer message, carry overload cancellation acknowledgement indicator;
Send the deleting bearing response message to described gateway, and in described deleting bearing message, carry overload cancellation acknowledgement indicator;
Send the renewal bearing response message to described gateway, and in described renewal bearer messages, carry described overload cancellation acknowledgement indicator.
12. method according to claim 1 is characterized in that, further comprises:
Described mobile management entity is safeguarded described overload gateway tabulation in advance, and upgrades described overload gateway tabulation according to described overload notification or the overload cancellation notice from described gateway.
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101754373B (en) * | 2009-12-28 | 2013-09-11 | 华为技术有限公司 | Operating indication method, service gateway and core network system |
| WO2011130912A1 (en) | 2010-04-22 | 2011-10-27 | 华为技术有限公司 | Method and apparatus for controlling jam/overload |
| CN102413497A (en) * | 2010-09-21 | 2012-04-11 | 电信科学技术研究院 | Method and equipment for processing overload control |
| CN102469512A (en) * | 2010-11-04 | 2012-05-23 | 大唐移动通信设备有限公司 | Method for processing access process and device for realizing same |
| CN102905314A (en) * | 2011-07-29 | 2013-01-30 | 中兴通讯股份有限公司 | Overload control stopping method, device and system |
| WO2012167527A1 (en) * | 2011-10-17 | 2012-12-13 | 华为技术有限公司 | Method, device and system for processing signalling resource overload and transmission resource overload |
| US20140219115A1 (en) * | 2012-02-06 | 2014-08-07 | Kamran Etemad | Signaling for configuration of downlink coordinated multipoint communications |
| BR112015028451A2 (en) * | 2013-05-13 | 2017-07-25 | Huawei Tech Co Ltd | overload process and control device |
| CN104869660A (en) * | 2014-02-21 | 2015-08-26 | 中兴通讯股份有限公司 | Method, controller and gateway capable of ensuring continuity of business data |
| WO2015184610A1 (en) | 2014-06-05 | 2015-12-10 | 华为技术有限公司 | Method and device for sending packet |
| WO2017101120A1 (en) * | 2015-12-18 | 2017-06-22 | 华为技术有限公司 | Communication method and apparatus, and system |
| CN108811168B (en) * | 2016-08-12 | 2020-01-17 | 华为技术有限公司 | Access control method and device of wireless network |
| WO2018120223A1 (en) * | 2016-12-30 | 2018-07-05 | 华为技术有限公司 | Communication method, mobility management entity, base station and system |
| CN111757313A (en) * | 2019-03-29 | 2020-10-09 | 华为技术有限公司 | Communication method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588927A (en) * | 2004-08-05 | 2005-03-02 | 北京航空航天大学 | Method for large scale multimedia cut-in net gate |
| CN1647457A (en) * | 2002-05-08 | 2005-07-27 | 国际商业机器公司 | Bandwidth management in a wireless network |
| CN101060475A (en) * | 2006-05-23 | 2007-10-24 | 华为技术有限公司 | A method and system for regulating the link loads of media gateway control interface |
| CN101114969A (en) * | 2007-08-20 | 2008-01-30 | 中兴通讯股份有限公司 | Control method for implementing signaling transmission in Wimax access network |
-
2008
- 2008-04-16 CN CN2008100904640A patent/CN101459928B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1647457A (en) * | 2002-05-08 | 2005-07-27 | 国际商业机器公司 | Bandwidth management in a wireless network |
| CN1588927A (en) * | 2004-08-05 | 2005-03-02 | 北京航空航天大学 | Method for large scale multimedia cut-in net gate |
| CN101060475A (en) * | 2006-05-23 | 2007-10-24 | 华为技术有限公司 | A method and system for regulating the link loads of media gateway control interface |
| CN101114969A (en) * | 2007-08-20 | 2008-01-30 | 中兴通讯股份有限公司 | Control method for implementing signaling transmission in Wimax access network |
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