CN110430607A

CN110430607A - The processing method and equipment of business continuance

Info

Publication number: CN110430607A
Application number: CN201910413200.2A
Authority: CN
Inventors: 熊春山; 魏鑫鹏; 时晓岩
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-12-30
Filing date: 2013-12-30
Publication date: 2019-11-08
Anticipated expiration: 2033-12-30
Also published as: CN105009673A; CN105009673B; CN110430607B; WO2015100553A1

Abstract

The embodiment of the present invention provides the processing method and equipment of a kind of business continuance, and MME determines whether PDN connection needs to keep business continuity according to the business continuance information of PDN connection by the business continuance information of the PDN connection of acquisition UE；If PDN connection does not need to keep business continuity, MME is that UE selects new packet data gateway PGW, if PDN connection needs to keep business continuity, MME keeps the connection of UE and original PGW.The above method, it can guarantee to need to keep the business of the UE of business continuance normally continuous, and in not influencing PDN connection under the premise of the business continuance of business, can be the PGW for being not necessary to guaranty that the UE of business continuance and selecting to be more suitable for, so that the path of UE is more excellent, route resource is also saved.

Description

The processing method and equipment of business continuance

The application be on December 30th, 2013 submit application No. is the division Shens of 201380034764.6 patent application Please.

Technical field

The present invention relates to the communication technology more particularly to the processing methods and equipment of a kind of business continuance.

Background technique

Business continuance (service continuity), which refers to, in a network guarantees that ongoing network service is not sent out The raw characteristic interrupted especially guarantees that the continuity of business is a key property of network in a mobile network.Network service Continuity can be realized in several ways, such as can be guaranteed by the related mechanism of application layer, can also pass through net The mechanism of network layers such as Internet protocol (Internet Protocol, abbreviation IP) layer guarantees.The continuity of some business is just It is by guaranteeing that the IP address of user equipment (User Equipment, abbreviation UE) remains unchanged during entire service conversation Come what is realized.In order to guarantee that the IP address of UE does not change, it is desirable to its used IP address anchor point under any state of UE It does not change, IP address anchor point herein typically refers to certain gateways in network, such as third generation cooperative partner program Packet data gateway (PDN in (The 3rd Generation Partnership Project, abbreviation 3GPP) network Gateway, abbreviation PGW).

In existing 3GPP network, in order to guarantee the continuity of user network business, in the prior art one, network can be UE A PGW is selected to be connected to specific packet data network (Packet Data Network, abbreviation PDN), no matter UE later PGW used in all allowing before UE use how to be moved to connect PDN network, no matter namely UE how to move its network industry Used PGW before business stream can be all first routed to, then enters PDN network by the PGW.For example, which starts Positioned at Beijing, network has selected to be located at Pekinese PGW for it when UE is initially connected to certain PDN network；UE is moved to extensively later State is located at Pekinese PGW at this time in order to guarantee that the continuity network of UE business still can allow UE to use, rather than selects to be located at wide Some PGW in state is linked into PDN network.Business not all on UE requires to keep business continuance in fact, and In the presence of UE does not need to keep the business of business continuance on some PDN connection, also just it is not necessarily to Business continuance is kept on the PDN connection for UE.For being not necessarily to keep the UE of business continuance, if net Network is still used PGW before its selection, then when UE moves to an off original PGW distant location, with PDN network Between Business Stream will pass through very long transmission path, this will cause very big route resource waste.

In order to solve the problems, such as to route the wasting of resources in the prior art one, a kind of new network machine is introduced in 3GPP network The selected IP flow of system unloads (Selected IP Traffic Offload, abbreviation SIPTO).The basic thought of SIPTO is For the connection between UE and certain PDN networks, network can select PGW closer from the position UE, such UE and PDN net for UE Business Stream between network can be transmitted by a shorter path.But SIPTO merely provides a kind of reduction Business Stream The method of transmission path, this method it is not intended that Business Stream continuity characteristic, as long as the signing information of user and operator In specify user SIPTO mechanism can be used when accessing some PDN network, then user, in moving process, network is just One can be selected for user apart from the closer PGW of user, the IP address that the variation of PGW will cause UE changes, at this time such as The not changed business presence of IP address in need before fruit UE, then will using the business before user after SIPTO It is interrupted.

Summary of the invention

The embodiment of the present invention provides the processing method and equipment of a kind of business continuance, can guarantee to need that business is kept to connect The business of the UE of continuous property is normally continuous, and can be the PGW for being not necessary to guaranty that the UE of business continuance and selecting to be more suitable for, and makes The path for obtaining UE is more excellent.

First aspect present invention provides a kind of processing method of business continuance, comprising:

Mobility management entity MME obtains the business continuance information of the packet data network PDN connection of user equipment (UE)；

When trigger condition meets, the MME determines that the PDN connects according to the business continuance information of the PDN connection It connects and whether needs to keep business continuity；

If it is not, then the MME is that the UE selects new packet data gateway PGW, and indicate that the UE is disconnected and be described The connection of the former PGW of UE service, and the instruction UE establish new PDN with the new PGW and connect；

If so, the MME keeps the connection of the UE Yu the original PGW.

In a first possible implementation of the first aspect of the invention, the mobility management entity MME, which is obtained, uses The business continuance information of the packet data network PDN connection of family equipment UE, comprising:

The MME receives the business continuance information for the PDN connection that the network equipment is sent, wherein the PDN connection Business continuance information determined by the network equipment according to the continuity information of each business carried in the PDN connection.

In a second possible implementation of the first aspect of the invention, the network equipment is policy control rule system Determine entity PCRF, the original PGW, for the UE service gateway S-GW in any one.

In the third possible implementation of first aspect present invention, when the network equipment is the PCRF, And the agreement between original PGW and the S-GW be general packet radio service technology tunnel label GTP agreement when, it is described MME receives the business continuance information for the PDN connection that the network equipment is sent, comprising:

The MME receives the PCRF and is connected by the business that the original PGW is connected with the PDN that the S-GW is sent Continuous property information.

In the 4th kind of possible implementation of first aspect present invention, when the network equipment is the PCRF, And the agreement between original PGW and the S-GW be the 6th edition PMIPv6 agreement of proxy mobile internet protocol when, the MME Receive the business continuance information for the PDN connection that the network equipment is sent, comprising:

The MME receives the PCRF and passes through the business continuance information of the S-GW PDN connection sent.

In the 5th kind of possible implementation of first aspect present invention, when the network equipment is the original PGW, The MME receives the business continuance information for the PDN connection that the network equipment is sent, comprising:

The MME receives the original PGW and passes through the business continuance information of the SGW PDN connection sent.

In the 6th kind of possible implementation of first aspect present invention, when the network equipment is the UE service S-GW when, the MME obtains the business continuance information of the packet data network PDN connection of user equipment (UE), comprising:

The MME receives the business continuance information for the PDN connection that the S-GW is sent.

In the 7th kind of possible implementation of first aspect present invention, the mobility management entity MME, which is obtained, to be used The business continuance information of the packet data network PDN connection of family equipment UE, comprising:

The MME obtains the continuity information of each carrying in the PDN connection, according to each carrying in the PDN connection Continuity information obtains the business continuance information of the PDN connection.

In the 8th kind of possible implementation of first aspect present invention, the MME obtains each in the PDN connection The continuity information of carrying obtains the business continuity of the PDN connection according to the continuity information of each carrying in the PDN connection Property information, comprising:

The MME obtains the continuity information of each carrying in the PDN connection, according to each carrying in the PDN connection Continuity information judges whether each carrying requires to keep continuous in the PDN connection；

If any one carrying in the PDN connection needs to keep continuous, the MME determines the industry of the PDN Continuity of being engaged in is to need to keep continuous；

If all carryings all do not need to keep continuous in the PDN connection, the MME determines the business of the PDN Continuity is not need to keep continuous.

In the 9th kind of possible implementation of first aspect present invention, the MME obtains each in the PDN connection The continuity information of carrying obtains the business continuity of the PDN connection according to the continuity information of each carrying in the PDN connection Property information, comprising:

If any one carrying in the PDN connection needs to keep continuous, the MME determines that the PDN connection is First operator's selection strategy of no satisfaction；

If the PDN connection meets first operator selection strategy, the MME determines the business of the PDN Continuity is to need to keep continuous；

If all carryings all do not need to keep any one in the continuous or described PDN connection in the PDN connection Carrying needs to keep continuous, but PDN connection is unsatisfactory for first operator selection strategy, then the MME determines institute The business continuance for stating PDN is not need to keep continuous.

In conjunction with the first of first aspect present invention and first aspect to the 9th kind of possible implementation, in the present invention In tenth kind of possible implementation of first aspect, the MME obtains the continuity information of each carrying in the PDN connection, Include:

The continuity letter of each carrying in the PDN connection that the SGW or PGW that the MME is received as the UE service are sent Breath.

In conjunction with the first of first aspect present invention and first aspect to the tenth kind of possible implementation, in the present invention In a kind of possible implementation of the tenth of first aspect, the trigger condition is any one in the following conditions: mobility pipe What the generation of director's part, new business initiation, original service ending, the creation of the grouping system EPS carrying of evolution, EPS were carried repairs Change the deletion with EPS carrying.

In conjunction with the first of first aspect present invention and first aspect to a kind of the tenth possible implementation, in this hair In 12nd kind of possible implementation of bright first aspect, the MME is that the UE selects new packet data gateway PGW, packet It includes:

The MME obtains the relevant information of the corresponding each PGW of affiliated access points APN of the original PDN connection, Wherein, the relevant information of the corresponding each PGW of the APN includes: the range information of each PGW and the UE, each PGW With the load information of the Delay of the UE, each PGW；

The MME is according to the actual demand of the relevant information of the corresponding each PGW of the APN and the UE from each PGW In be that the UE selects new PGW.

In the 13rd kind of possible implementation of first aspect present invention, the MME obtains original PDN connection institute The range information of the access points APN of category corresponding each PGW and the UE, comprising:

The MME sends DNS query request to domain name system server DNS, for inquiring the corresponding each PGW of the APN Information；

The MME receives the internet protocol address for each PGW that the DNS is sent, and the MME is according to described each The IP address of PGW determines each PGW at a distance from the UE.

In the 14th kind of possible implementation of first aspect present invention, the MME obtains original PDN connection institute The relevant information of the corresponding each PGW of the access points APN of category, comprising:

It is corresponding that the MME inquires access points APN belonging to the original PDN connection from pre-configured database Each PGW relevant information.

In the 15th kind of possible implementation of first aspect present invention, the MME is the new grouping of UE selection Data gateway PGW, comprising:

The MME determines the need for selecting new PGW for the UE according to second operator's selection strategy.

In the 16th kind of possible implementation of first aspect present invention, second operator selection strategy are as follows: When the PDN of UE connection is in EPS Connection Management Idle state ECM-IDLE, new PGW is selected for the UE, alternatively, working as institute The PDN connection for stating UE, which is under any state, all not to be needed to select new PGW for the UE, alternatively, working as the PDN connection of the UE not It needs to keep to select new PGW when business continuance for the UE.

Second aspect of the present invention provides a kind of processing method of business continuance, comprising:

The network equipment obtains the business continuance information of each business carried in PDN connection；

Network equipment PDN according to the business continuance acquisition of information of each business carried in the PDN connection The business continuance information of connection；

The network equipment sends the business continuance information of the PDN connection to mobile management entity MME.

In a first possible implementation of the second aspect of the invention, the network equipment is according to the PDN connection The business continuance information of PDN connection described in the business continuance acquisition of information of each business of upper carrying, comprising:

The network equipment judges described each according to the business continuance information of each business carried in the PDN connection Whether business requires to keep connection；

If any one business in each business carried in the PDN connection needs to keep continuous, the network Equipment determines the business continuance of the PDN connection to need to keep continuous；

If all business carried in the PDN connection all do not need to keep continuous, the network equipment determines institute The business continuance for stating PDN connection is not need to keep continuous.

In second of possible implementation of second aspect of the present invention, the network equipment is according to the PDN connection The business continuance information of PDN connection described in the business continuance acquisition of information of each business of upper carrying, comprising:

The network equipment judges described each according to the business continuance information of each business carried in the PDN connection Whether business requires to keep continuous；

If any one business in each business carried in the PDN connection needs to keep continuous, the network is set It is standby to determine whether the PDN connection meets first operator's selection strategy；

If the PDN connection meets first operator selection strategy, the network equipment determines the PDN's Business continuance is to need to keep continuous；

If all carryings all do not need to keep any one in the continuous or described PDN connection in the PDN connection Carrying needs to keep continuous, but PDN connection is unsatisfactory for first operator selection strategy, then the network equipment is true The business continuance of the fixed PDN is not need to keep continuous.

In conjunction with the first of second aspect of the present invention and second aspect and second of possible implementation, in the present invention In the third possible implementation of second aspect, the network equipment is policy control Rulemaking entity PCRF, described The network equipment obtains the business continuance information of each business carried in PDN connection, comprising:

The PCRF receives the Business Stream characteristic information for each business that packet detection entity TDF is sent；

The PCRF determines the business continuance of each business according to the Business Stream characteristic information of each business, obtains The business continuance information of each business.

In the 4th kind of possible implementation of second aspect of the present invention, the Business Stream characteristic information packet of each business It includes: the five-tuple information of the business or the application layer message of the business.

In conjunction with the third and the 4th kind of possible implementation of second aspect of the present invention, the of second aspect of the present invention In five kinds of possible implementations, the PCRF determines the industry of each business according to the Business Stream characteristic information of each business Business continuity, comprising:

The PCRF is according to the Business Stream characteristic information of each business, and is stored in advance or obtains from external data base The business continuance characteristic information of the various businesses type obtained determines the business continuance of each business.

In conjunction with the first of second aspect of the present invention and second aspect and second of possible implementation, in the present invention In 6th kind of possible implementation of second aspect, the network equipment is policy control Rulemaking entity PCRF, described The network equipment obtains the business continuance information of each business carried in PDN connection, comprising:

The PCRF receives the business continuance information for each business that packet detection entity TDF is sent, wherein described each The business continuance information of business is that the TDF is determined according to the Business Stream characteristic information of each business.

In conjunction with the first of second aspect of the present invention and second aspect to the 6th kind of possible implementation, in the present invention In 7th kind of possible implementation of second aspect, the network equipment is policy control Rulemaking entity PCRF, and is Agreement between the packet data gateway PGW and gateway S-GW of the UE service is packet radio service technology tunnel mark Sign GTP agreement；

The network equipment sends the business continuance information of the PDN connection to mobile management entity MME, comprising:

The PCRF, which sends the business continuance that the PDN is connected to the MME with the S-GW by the PGW, to be believed Breath.

In conjunction with the first of second aspect of the present invention and second aspect to the 6th kind of possible implementation, in the present invention In 8th kind of possible implementation of second aspect, the network equipment is policy control Rulemaking entity PCRF, and is Agreement between the PGW and the S-GW of the UE service is the 6th edition PMIPv6 agreement of proxy mobile internet protocol；

The PCRF sends the business continuance information of the PDN connection by the S-GW to the MME.

In conjunction with the first of second aspect of the present invention and second aspect and second of possible implementation, in the present invention In 9th kind of possible implementation of second aspect, the network equipment is the PGW of the UE service, and the network is set The standby business continuance information for obtaining each business carried in PDN connection, comprising:

The PGW receives the business continuance information of each business carried in the PDN connection that PCRF is sent, wherein The business continuance of each business carried in the PDN connection is by the PCRF according to the Business Stream characteristic information of each business It determines；

The PGW sends the business continuance information of the PDN connection by the SGW that services for the UE to the MME.

In conjunction with the first of second aspect of the present invention and second aspect and second of possible implementation, in the present invention In tenth kind of possible implementation of second aspect, the network equipment is the PGW of the UE service, and the network is set The standby business continuance information for obtaining each business carried in PDN connection, comprising:

When there is new business to initiate in the PDN connection or at the end of, the PGW obtains the Business Stream of each business Characteristic information；

The PGW determines the business continuance of each business according to the Business Stream characteristic information of each business, obtains The business continuance information of each business.

In conjunction with the first of second aspect of the present invention and second aspect and second of possible implementation, in the present invention In a kind of possible implementation of the tenth of second aspect, the network equipment is the SGW of the UE service, the network Equipment obtains the business continuance information of each business carried in PDN connection, comprising:

The SGW receives the business continuance information of each business carried in the PDN connection that PCRF is sent, wherein The business continuance of each business carried in the PDN connection is by the PCRF according to the Business Stream characteristic information of each business It determines.

In the 12nd kind of possible implementation of second aspect of the present invention, the network equipment is the UE service SGW, the network equipment obtains the business continuance information of each business carried in PDN connection, comprising:

The SGW receives the business continuance information of each business carried in the PDN connection that PCRF is sent, wherein The business continuance of each business carried in the PDN connection is by the PCRF according to the Business Stream characteristic information of each business It determines；

Network equipment PDN according to the business continuance acquisition of information of each business carried in the PDN connection The business continuance information of connection, comprising:

The SGW is determined in the PDN connection according to the business continuance information of each business carried in the PDN connection The continuity respectively carried；

The SGW according to the continuity information of each carrying in the PDN connection judge in the PDN connection it is each carrying whether It requires to keep continuous；

If any one carrying in the PDN connection needs to keep continuous, the SGW determines the PDN connection Business continuance be to need to keep continuous；

If all carryings all do not need to keep continuous in the PDN connection, the SGW determines the PDN connection Business continuance is not need to keep continuous.

In the 13rd kind of possible implementation of second aspect of the present invention, the network equipment is the UE service SGW, the network equipment obtains the business continuance information of each business carried in PDN connection, comprising:

SGW receives the business continuance information of each business carried in the PDN connection that PCRF is sent, wherein described The business continuance of each business carried in PDN connection is true according to the Business Stream characteristic information of each business by the PCRF It is fixed；

If any one carrying in the PDN connection needs to keep continuous, the SGW determines that the PDN connection is First operator's selection strategy of no satisfaction；

If the PDN connection meets first operator selection strategy, the SGW determines the business of the PDN Continuity is to need to keep continuous；

If all carryings all do not need to keep any one in the continuous or described PDN connection in the PDN connection Carrying needs to keep continuous, but PDN connection is unsatisfactory for first operator selection strategy, then the SGW determines institute The business continuance for stating PDN is not need to keep continuous.

In the 14th kind of possible implementation of second aspect of the present invention, the network equipment is to mobile management entity MME sends the business continuance information of the PDN connection, comprising:

The network equipment determines that the business continuance of the PDN connection changes, and the network equipment is to the MME Send the business continuance information of the PDN connection.

It is described if PDN connection is just established in the 15th kind of possible implementation of second aspect of the present invention The network equipment sends the business continuance information of the PDN connection to mobile management entity MME, comprising:

For the network equipment after preset duration, Xiang Suoshu MME sends the business continuance information of the PDN connection.

Third aspect present invention provides a kind of mobile management entity MME, comprising:

Obtain module 12, the business continuance information of the packet data network PDN connection for obtaining user equipment (UE)；

Determining module, for when trigger condition meets, determined according to the business continuance information of the PDN connection described in Whether PDN connection needs to keep business continuity；

Gateway selecting module is to select new packet count when being for the UE for the judging result in the determining module According to gateway PGW, and indicate that the UE disconnects the connection with the former PGW for UE service, and the instruction UE and described new PGW establishes new PDN connection；

Connection keep module, for the judging result in the determining module be it is no when, keep the UE and the original The connection of PGW.

In a first possible implementation of the third aspect of the invention, the acquisition module is specifically used for: receiving net The business continuance information for the PDN connection that network equipment is sent, wherein the business continuance information of the PDN connection is by institute The network equipment is stated to be determined according to the continuity information of each business carried in the PDN connection.

In a second possible implementation of the third aspect of the invention, the network equipment is policy control rule system Determine entity PCRF, the original PGW, for the UE service gateway S-GW in any one.

In the third possible implementation of third aspect present invention, when the network equipment is the PCRF, And the agreement between original PGW and the S-GW be general packet radio service technology tunnel label GTP agreement when, it is described to obtain Modulus block is specifically used for:

Receive the business continuance information that the PCRF is connected by the original PGW with the PDN that the S-GW is sent.

In the 4th kind of possible implementation of third aspect present invention, when the network equipment is the PCRF, And the agreement between original PGW and the S-GW be the 6th edition PMIPv6 agreement of proxy mobile internet protocol when, it is described to obtain Modulus block is specifically used for:

It receives the PCRF and passes through the business continuance information of the S-GW PDN connection sent.

In the 5th kind of possible implementation of third aspect present invention, when the network equipment is the original PGW, The acquisition module is specifically used for:

It receives the original PGW and passes through the business continuance information of the SGW PDN connection sent.

In the 6th kind of possible implementation of third aspect present invention, when the network equipment is the UE service S-GW when, the acquisition module is specifically used for:

Receive the business continuance information for the PDN connection that the S-GW is sent.

In the 7th kind of possible implementation of third aspect present invention, the determining module is specifically used for:

The continuity information for obtaining each carrying in the PDN connection is believed according to the continuity of each carrying in the PDN connection Breath obtains the business continuance information of the PDN connection.

In the 8th kind of possible implementation of third aspect present invention, the determining module is specifically used for:

The continuity information for obtaining each carrying in the PDN connection is believed according to the continuity of each carrying in the PDN connection Breath judges whether each carrying requires to keep continuous in the PDN connection；

If any one carrying in the PDN connection needs to keep continuous, it is determined that the business continuity of the PDN Property to need to keep continuous；

If all carryings all do not need to keep continuous in the PDN connection, it is determined that the business continuance of the PDN is It does not need to keep continuous.

In the 9th kind of possible implementation of third aspect present invention, the determining module is specifically used for:

If any one carrying in the PDN connection needs to keep continuous, determine whether the PDN connection meets the One operator's selection strategy；

If the PDN connection meets first operator selection strategy, it is determined that the business continuance of the PDN is It needs to keep continuous；

If all carryings all do not need to keep any one in the continuous or described PDN connection in the PDN connection Carrying needs to keep continuous, but PDN connection is unsatisfactory for first operator selection strategy, it is determined that the PDN's Business continuance is not need to keep continuous.

In conjunction with the first of third aspect present invention and the third aspect to the 9th kind of possible implementation, in the present invention In tenth kind of possible implementation of the third aspect, the determining module is specifically used for:

It is received as the continuity information of each carrying in the PDN connection of SGW or the PGW transmission of the UE service.

In conjunction with the first of third aspect present invention and the third aspect to the tenth kind of possible implementation, in the present invention In a kind of possible implementation of the tenth of the third aspect, the trigger condition is any one in the following conditions: mobility pipe What the generation of director's part, new business initiation, original service ending, the creation of the grouping system EPS carrying of evolution, EPS were carried repairs Change the deletion with EPS carrying.

In conjunction with the first of third aspect present invention and the third aspect to a kind of the tenth possible implementation, in this hair In 12nd kind of possible implementation of the bright third aspect, the gateway selecting module includes:

Acquiring unit, the correlation of the corresponding each PGW of affiliated access points APN for obtaining the original PDN connection Information, wherein the relevant information of the corresponding each PGW of the APN includes: the range information of each PGW and the UE, described each The load information of the Delay of PGW and the UE, each PGW；

Determination unit, for according to the actual demand of the relevant information of the corresponding each PGW of the APN and the UE from described It is that the UE selects new PGW in each PGW.

In the 13rd kind of possible implementation of third aspect present invention, the acquiring unit is specifically used for:

DNS query request is sent to domain name system server DNS, for inquiring the corresponding each PGW information of the APN；

The internet protocol address for each PGW that the DNS is sent is received, the IP address according to each PGW is true Fixed each PGW is at a distance from the UE.

In the 14th kind of possible implementation of third aspect present invention, the acquiring unit is specifically used for:

It is corresponding each that access points APN belonging to the original PDN connection is inquired from pre-configured database The relevant information of PGW.

In the 15th kind of possible implementation of third aspect present invention, the gateway selecting module is specifically used for:

It is determined the need for selecting new PGW for the UE according to second operator's selection strategy.

In the 16th kind of possible implementation of third aspect present invention, second operator selection strategy are as follows: When the PDN of UE connection is in EPS Connection Management Idle state ECM-IDLE state, new PGW is selected for the UE, alternatively, It does not all need to select new PGW for the UE when the PDN connection of the UE is under any state, alternatively, the PDN as the UE connects It connects and selects new PGW when not needing to keep business continuance for the UE.

Fourth aspect present invention provides a kind of network equipment characterized by comprising

First obtains module, for obtaining the business continuance information of each business carried in PDN connection；

Second obtains module, for the business continuance acquisition of information institute according to each business carried in the PDN connection State the business continuance information of PDN connection；

Sending module, for sending the business continuance information of the PDN connection to mobile management entity MME.

In a first possible implementation of the fourth aspect of the invention, the second acquisition module is specifically used for:

According to the business continuance information of each business carried in the PDN connection, judge whether each business all needs It keeps connecting；

If any one business in each business carried in the PDN connection needs to keep continuous, it is determined that described The business continuance of PDN connection is to need to keep continuous；

If all business carried in the PDN connection all do not need to keep continuous, it is determined that the PDN connection Business continuance is not need to keep continuous.

In second of possible implementation of fourth aspect present invention, the second acquisition module is specifically used for:

According to the business continuance information of each business carried in the PDN connection, judge whether each business all needs Keep continuous；

If any one business in each business carried in the PDN connection needs to keep continuous, the PDN is determined Whether connection meets first operator's selection strategy；

In conjunction with the first of fourth aspect present invention and fourth aspect and second of possible implementation, in the present invention In the third possible implementation of fourth aspect, the network equipment is policy control Rulemaking entity PCRF, described First, which obtains module, includes:

Receiving unit, for receiving the Business Stream characteristic information for each business that packet detection entity TDF is sent；

Determination unit, for determining the business continuity of each business according to the Business Stream characteristic information of each business Property, obtain the business continuance information of each business.

In the 4th kind of possible implementation of fourth aspect present invention, the Business Stream characteristic information packet of each business It includes: the five-tuple information of the business or the application layer message of the business.

In conjunction with the third and the 4th kind of possible implementation of fourth aspect present invention, the of fourth aspect present invention In five kinds of possible implementations, the determination unit is specifically used for:

According to the Business Stream characteristic information of each business, and it is stored in advance or is obtained from external data base various The business continuance characteristic information of type of service determines the business continuance of each business.

In conjunction with the first of fourth aspect present invention and fourth aspect and second of possible implementation, in the present invention In 6th kind of possible implementation of fourth aspect, the network equipment is policy control Rulemaking entity PCRF, described First acquisition module is specifically used for:

Receive the business continuance information for each business that packet detection entity TDF is sent, wherein the industry of each business Continuity information of being engaged in is that the TDF is determined according to the Business Stream characteristic information of each business.

In conjunction with the first of fourth aspect present invention and fourth aspect to the 6th kind of possible implementation, in the present invention In 7th kind of possible implementation of fourth aspect, the network equipment is policy control Rulemaking entity PCRF, and is Agreement between the packet data gateway PGW and gateway S-GW of the UE service is packet radio service technology tunnel mark Sign GTP agreement；

The sending module is specifically used for: sending what the PDN was connected to the MME with the S-GW by the PGW Business continuance information.

In conjunction with the first of fourth aspect present invention and fourth aspect to the 6th kind of possible implementation, in the present invention In 8th kind of possible implementation of fourth aspect, the network equipment is policy control Rulemaking entity PCRF, and is Agreement between the PGW and the S-GW of the UE service is the 6th edition PMIPv6 agreement of proxy mobile internet protocol；

The sending module is specifically used for: sending the business continuance of the PDN connection to the MME by the S-GW Information.

In conjunction with the first of fourth aspect present invention and fourth aspect and second of possible implementation, in the present invention In 9th kind of possible implementation of fourth aspect, the network equipment is the PGW of the UE service, and described second obtains Modulus block is specifically used for:

Receive the business continuance information of each business carried in the PDN connection that PCRF is sent, wherein the PDN The business continuance of each business carried in connection is determined by the PCRF according to the Business Stream characteristic information of each business；

The sending module is specifically used for: sending the PDN connection to the MME by the SGW serviced for the UE Business continuance information.

In conjunction with the first of fourth aspect present invention and fourth aspect and second of possible implementation, in the present invention In tenth kind of possible implementation of fourth aspect, the network equipment is the PGW of the UE service, and described first obtains Modulus block is specifically used for:

When there is new business to initiate in the PDN connection or at the end of, obtain the Business Stream feature letter of each business Breath；

The business continuance that each business is determined according to the Business Stream characteristic information of each business obtains each industry The business continuance information of business.

In conjunction with the first of fourth aspect present invention and fourth aspect and second of possible implementation, in the present invention In a kind of possible implementation of the tenth of fourth aspect, the network equipment is the SGW of UE service, described first Module is obtained to be specifically used for:

Receive the business continuance information of each business carried in the PDN connection that PCRF is sent, wherein the PDN The business continuance of each business carried in connection is determined by the PCRF according to the Business Stream characteristic information of each business.

In the 12nd kind of possible implementation of fourth aspect present invention, the network equipment is the UE service SGW, it is described first acquisition module is specifically used for:

Described second, which obtains module, includes:

Continuity determination unit is carried, for the business continuance information according to each business carried in the PDN connection Determine the continuity of each carrying in the PDN connection；

Judging unit, it is each in the PDN connection for being judged according to the continuity information of each carrying in the PDN connection Whether carrying requires to keep continuous；

The continuity determination unit of PDN connection, for determining the PDN connection according to the judging result of the judging unit Whether need to keep continuous；

If any one carrying in the PDN connection needs to keep continuous, the continuity of the PDN connection is determined Unit determines the business continuance of the PDN connection to need to keep continuous；

If all carryings all do not need to keep continuous in the PDN connection, the continuity of the PDN connection determines single Member determines that the business continuance of the PDN connection is not need to keep continuous.

In the 13rd kind of possible implementation of fourth aspect present invention, the network equipment is the UE service SGW, it is described first acquisition module is specifically used for:

Described second, which obtains module, includes:

Judging unit, for determining any one carrying in the PDN connection in the carrying continuity determination unit It needs to keep consecutive hours, determines whether the PDN connection meets first operator's selection strategy；

If the PDN connection meets first operator selection strategy, the continuity of the PDN connection determines single Member determines that the business continuance of the PDN is to need to keep continuous；

If all carryings all do not need to keep any one in the continuous or described PDN connection in the PDN connection Carrying needs to keep continuous, but PDN connection is unsatisfactory for first operator selection strategy, then the PDN connection Continuity determination unit determines that the business continuance of the PDN is not need to keep continuous.

In the 14th kind of possible implementation of fourth aspect present invention, the sending module is specifically used for:

When determining that the business continuance of the PDN connection changes, Xiang Suoshu MME sends the business of the PDN connection Continuity information.

It is described if PDN connection is just established in the 15th kind of possible implementation of fourth aspect present invention Sending module is specifically used for:

After preset duration, Xiang Suoshu MME sends the business continuance information of the PDN connection.

Fifth aspect present invention provides a kind of mobility management entity MME, comprising:

Receiver, the business continuance information of the packet data network PDN connection for obtaining user equipment (UE)；

Processor, for when trigger condition meets, determined according to the business continuance information of the PDN connection described in Whether PDN connection needs to keep business continuity；

If it is not, then the processor is that the UE selects new packet data gateway PGW, and indicate the UE disconnect with for The connection of the former PGW of the UE service, and the instruction UE establish new PDN with the new PGW and connect；

If so, the processor keeps the connection of the UE Yu the original PGW.

In the first possible implementation of fifth aspect present invention, the receiver is specifically used for:

Receive the business continuance information for the PDN connection that the network equipment is sent, wherein the business of the PDN connection Continuity information is determined by the network equipment according to the continuity information of each business carried in the PDN connection.

In second of possible implementation of fifth aspect present invention, the network equipment is policy control rule system Determine entity PCRF, the original PGW, for the UE service gateway S-GW in any one.

In the third possible implementation of fifth aspect present invention, when the network equipment is the PCRF, And the agreement between original PGW and the S-GW be general packet radio service technology tunnel label GTP agreement when, it is described to connect Implement body is received to be used for:

In the 4th kind of possible implementation of fifth aspect present invention, when the network equipment is the PCRF, And the agreement between original PGW and the S-GW be the 6th edition PMIPv6 agreement of proxy mobile internet protocol when, it is described to connect Implement body is received to be used for:

In the 5th kind of possible implementation of fifth aspect present invention, when the network equipment is the original PGW, The receiver is specifically used for:

In the 6th kind of possible implementation of fifth aspect present invention, when the network equipment is the UE service S-GW when, the receiver is specifically used for:

In the 7th kind of possible implementation of fifth aspect present invention, the receiver is specifically used for:

In the 8th kind of possible implementation of fifth aspect present invention, the receiver is specifically used for:

In the 9th kind of possible implementation of fifth aspect present invention, the receiver is specifically used for:

In conjunction with the first of fifth aspect present invention and the 5th aspect to the 9th kind of possible implementation, in the present invention In tenth kind of possible implementation of the 5th aspect, the receiver is specifically used for:

In conjunction with the first of fifth aspect present invention and the 5th aspect to the tenth kind of possible implementation, in the present invention In a kind of possible implementation of the tenth of 5th aspect, the trigger condition is any one in the following conditions: mobility pipe What the generation of director's part, new business initiation, original service ending, the creation of the grouping system EPS carrying of evolution, EPS were carried repairs Change the deletion with EPS carrying.

In conjunction with the first of fifth aspect present invention and the 5th aspect to a kind of the tenth possible implementation, in this hair In 12nd kind of possible implementation of bright 5th aspect, the processor is specifically used for:

Obtain the relevant information of the corresponding each PGW of affiliated access points APN of the original PDN connection, wherein described The relevant information of the corresponding each PGW of APN includes: the range information of each PGW and the UE, each PGW and the UE The load information of Delay, each PGW；

It is described from each PGW according to the actual demand of the relevant information of the corresponding each PGW of the APN and the UE UE selects new PGW.

In the 13rd kind of possible implementation of fifth aspect present invention, further includes:

Transmitter, it is corresponding each for inquiring the APN for sending DNS query request to domain name system server DNS PGW information；

The receiver is also used to: receiving the Internet protocol IP address for each PGW that the DNS is sent；

The processor is specifically used for: determining each PGW according to the IP address of the received each PGW of the receiver At a distance from the UE.

In the 14th kind of possible implementation of fifth aspect present invention, the processor is specifically used for:

In the 15th kind of possible implementation of fifth aspect present invention, the processor is specifically used for:

In the 16th kind of possible implementation of fifth aspect present invention, second operator selection strategy are as follows: When the PDN of UE connection is in EPS Connection Management Idle state ECM-IDLE, new PGW is selected for the UE, alternatively, working as institute The PDN connection for stating UE, which is under any state, all not to be needed to select new PGW for the UE, alternatively, working as the PDN connection of the UE not It needs to keep to select new PGW when business continuance for the UE.

Sixth aspect present invention provides a kind of network equipment, comprising:

Receiver, for obtaining the business continuance information of each business carried in PDN connection；

Processor: the business continuance of each business carried in the PDN connection for being obtained according to the receiver The business continuance information of the connection of PDN described in acquisition of information；

Transmitter, for sending the business continuance information of the PDN connection to mobile management entity MME.

In the first possible implementation of sixth aspect present invention, the processor is specifically used for:

In second of possible implementation of sixth aspect present invention, the processor is specifically used for:

In conjunction with the first and second of possible implementation of sixth aspect present invention and the 6th aspect, in the present invention In the third possible implementation of 6th aspect, the network equipment is policy control Rulemaking entity PCRF, described Receiver is specifically used for:

Receive the Business Stream characteristic information for each business that packet detection entity TDF is sent；

In the 4th kind of possible implementation of sixth aspect present invention, the Business Stream characteristic information packet of each business It includes: the five-tuple information of the business or the application layer message of the business.

In conjunction with the third and the 4th kind of possible implementation of sixth aspect present invention, the of sixth aspect present invention In five kinds of possible implementations, the receiver is specifically used for:

In conjunction with the first and second of possible implementation of sixth aspect present invention and the 6th aspect, in the present invention In 6th kind of possible implementation of the 6th aspect, the network equipment is policy control Rulemaking entity PCRF, described Receiver is specifically used for:

In conjunction with the first of sixth aspect present invention and the 6th aspect to the 6th kind of possible implementation, in the present invention In 7th kind of possible implementation of the 6th aspect, the network equipment is policy control Rulemaking entity PCRF, and is Agreement between the packet data gateway PGW and gateway S-GW of the UE service is packet radio service technology tunnel mark Sign GTP agreement；

The transmitter is specifically used for: sending the industry that the PDN is connected to the MME with the S-GW by the PGW Business continuity information.

In conjunction with the first of sixth aspect present invention and the 6th aspect to the 6th kind of possible implementation, in the present invention In 8th kind of possible implementation of the 6th aspect, the network equipment is policy control Rulemaking entity PCRF, and is Agreement between the PGW and the S-GW of the UE service is the 6th edition PMIPv6 agreement of proxy mobile internet protocol；

The transmitter is specifically used for: being believed by the S-GW to the business continuance that the MME sends the PDN connection Breath.

In conjunction with the first and second of possible implementation of sixth aspect present invention and the 6th aspect, in the present invention In 9th kind of possible implementation of the 6th aspect, the network equipment is the PGW of the UE service, the receiver It is specifically used for:

The transmitter is specifically used for: sending the industry of the PDN connection to the MME by the SGW that services for the UE Business continuity information.

In conjunction with the first and second of possible implementation of sixth aspect present invention and the 6th aspect, in the present invention In tenth kind of possible implementation of the 6th aspect, the network equipment is the PGW of the UE service, the receiver It is specifically used for:

In conjunction with the first and second of possible implementation of sixth aspect present invention and the 6th aspect, in the present invention In a kind of possible implementation of the tenth of 6th aspect, the network equipment is the SGW of the UE service, the reception Implement body is used for: receiving the business continuance information of each business carried in the PDN connection that PCRF is sent, wherein described The business continuance of each business carried in PDN connection is true according to the Business Stream characteristic information of each business by the PCRF It is fixed.

In the 12nd kind of possible implementation of sixth aspect present invention, the network equipment is the UE service SGW, the receiver is specifically used for:

The processor is specifically used for: being determined according to the business continuance information of each business carried in the PDN connection The continuity of each carrying in the PDN connection；

Judge whether each carrying requires in the PDN connection according to the continuity information of each carrying in the PDN connection Keep continuous；

If any one carrying in the PDN connection needs to keep continuous, it is determined that the business of the PDN connection Continuity is to need to keep continuous；

If all carryings all do not need to keep continuous in the PDN connection, it is determined that the business continuity of the PDN connection Property not need to keep be continuous.

In the 13rd kind of possible implementation of sixth aspect present invention, the network equipment is the UE service SGW, the receiver is specifically used for:

In the 14th kind of possible implementation of sixth aspect present invention, the transmitter is specifically used for:

It is described if PDN connection is just established in the 15th kind of possible implementation of sixth aspect present invention Transmitter is specifically used for:

The embodiment of the present invention provides the processing method and equipment of a kind of business continuance, and MME obtains the PDN connection of UE Business continuance information determines whether PDN connection needs to keep business continuity according to the business continuance information of PDN connection；Such as Fruit PDN connection does not need to keep business continuity, then MME is that UE selects new PGW, if PDN connection needs to keep business continuity, Then MME keeps the connection of UE and original PGW.The above method can guarantee to need to keep the business of the UE of business continuance normally to connect It is continuous, and in not influencing PDN connection under the premise of the business continuance of each business, for the UE for being not necessary to guaranty that business continuance The PGW being more suitable for is selected to save route resource so that the path of UE is more excellent.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.

Fig. 1 is the basic framework schematic diagram of 3GPP network；

The flow chart of the processing method embodiment one of Fig. 2 business continuance of the present invention；

Fig. 3 is the flow chart of the processing method embodiment two of business continuance of the present invention；

Fig. 4 is the signaling process figure of the processing method embodiment three of business continuance of the present invention；

Fig. 5 is the signaling process figure of the processing method example IV of business continuance of the present invention；

Fig. 6 is the signaling process figure of the processing method embodiment five of business continuance of the present invention；

Fig. 7 is the signaling process figure of the processing method embodiment six of business continuance of the present invention；

Fig. 8 is the signaling process figure of the processing method embodiment seven of business continuance of the present invention,

Fig. 9 is the signaling process figure of the processing method embodiment eight of business continuance of the present invention；

Figure 10 is the signaling process figure of the processing method embodiment nine of business continuance of the present invention；

Figure 11 is the structural schematic diagram of mobile management entity embodiment one of the present invention；

Figure 12 is the structural schematic diagram of mobile management entity embodiment two of the present invention；

Figure 13 is the structural schematic diagram of inventive network apparatus embodiments one；

Figure 14 is the structural schematic diagram of mobile management entity embodiment three of the present invention；

Figure 15 is the structural schematic diagram of inventive network apparatus embodiments two.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.

Before introducing various embodiments of the present invention, an application scenarios of the invention are first introduced, present invention is mainly applied to In 3GPP network, Fig. 1 is the basic framework schematic diagram of 3GPP network, as shown in Figure 1, in the architecture, to access some grouping Data network (Packet Data Network, abbreviation PDN), UE requires connect to a specific PGW, which is responsible for The IP address for accessing the PDN network is distributed for UE, may be coupled in 3GPP network some PDN PGW might have it is multiple. It is exactly the network of institute, operator subordinate in 3GPP network, between UE and PGW, mainly includes the Universal Terrestrial of evolution in the network Wireless access network (evolved universal terrestrial radio access network, abbreviation e-UTRAN) moves Mobility management entity (Mobility Management Entity, abbreviation MME), home subscriber server (Home Subscriber Server, abbreviation HSS), gateway (Server Gateway, abbreviation SGW), as shown in Figure 1,3GPP net It can also include policy control Rulemaking entity (Policy Control Rule Function, abbreviation PCRF), packet in network Detect entity (Traffic Detection Function, abbreviation TDF) etc..The net of institute, operator subordinate between UE and PGW Each entity in network collectively forms the transmission path of Business Stream between UE and PDN: UE → E-UTRAN → SGW → PGW, and is somebody's turn to do Path just becomes a packet data network connection (PDN connection), and UE can establish multiple PDN connections, each PDN Connection may include one or more carryings (bearer), and each bearer has the characteristics such as specific propagation delay time, transmission bandwidth, These bearer are used to carry the Business Stream with heterogeneous networks requirement in PDN connection, and each bearer can carry one Or multiple Business Streams.Therefore, each PDN connection can have multiple and different Business Streams above.

The present invention program can be divided mainly into two aspects: first aspect, the business continuance spy to some PDN connection of UE Property is judged, judges whether the PDN connection needs to keep continuous；Second aspect, the network equipment are according to the PDN connection got Business continuance information be process that UE selects suitable PGW selection.

The flow chart of the processing method embodiment one of Fig. 2 business continuance of the present invention mainly describes in the present embodiment MME is according to the process that obtained business continuance information is that UE selects suitable PGW, as shown in Fig. 2, business provided in this embodiment Continuity method the following steps are included:

Step 101, MME obtain the business continuance information of the PDN connection of UE.

In various embodiments of the present invention, business continuance refers to whether the business of user allows to be interrupted, that is to say, that works as UE When the IP address used changes, whether the ongoing business of the UE can also continue to be normally carried out.If the IP of UE Location changes, and the ongoing business of UE is unaffected, still can be normally carried out, and this kind of business is known as not needing to keep The business of business continuance will not influence for example, user accesses the business of Web page when the IP address of UE changes Access of the user to Web page, therefore, the business for accessing Web page are the business for not needing to keep business continuance.If The IP address of UE changes, and leads to the ongoing service disconnection of the UE, and this kind of business is known as needing to keep business continuity The business of property, such as internet protocol voice service (Voice over Internet Protocol, abbreviation VoIP) business, VoIP business is also referred to as the networking telephone, if the IP address of UE changes in communication process, normal communication process It will be interrupted, so VoIP business is to need to keep the business of business continuance.Guaranteeing business continuance, there are mainly two types of sides Formula in a kind of mode is guaranteed by the related mechanism of application layer, is the machine by network layer (IP layers) in another way System is to guarantee.The mechanism of network layer is mainly by guaranteeing that the IP address of UE is remained unchanged during entire service conversation come real Existing.In order to guarantee that the IP address of UE does not change, it is desirable to which (such as moving condition) is used in it under any state of UE IP address anchor point does not change, and the address IP anchor point herein typically refers to certain gateways in network, such as in 3GPP network PGW, as long as PGW used in UE is constant, the IP address of UE is maintained for constant.

In various embodiments of the present invention, the business of each business carried in the business continuance information or PDN connection of PDN connection Continuity information includes the following three types situation: (a) needing to keep business continuance；(b) only in the grouping system of evolution (Evolved Packet System, abbreviation EPS) connection management connected state (EPS Connection Management- CONNECED, abbreviation ECM-CONNECED) it needs to keep business continuance；(c) it does not need to keep business continuance etc., herein only Be list 3 kinds of business continuance information, but the present invention is not limited thereto system, the continuity information of business can also include it His information.

MME obtains the business continuance information of the PDN connection of UE, can pass through following two mode:

The first acquisition modes, MME receive the business continuance information for the PDN connection that the network equipment is sent, wherein PDN The business continuance information of connection is determined by the continuity information that the network equipment connects each business carried according to PDN.

Wherein, which can be policy control Rulemaking entity (Policy Control Rule Function, abbreviation PCRF), original PGW, for UE service gateway S-GW in any one.PCRF, original PGW and SGW are The continuity information that each business carried can be connected according to PDN determines the business continuance of PDN connection.

When the network equipment is PCRF, and the agreement between original PGW and S-GW is general packet radio service technology (General Packet Radio Service, abbreviation GPRS) tunnel label (GPRS Turning Protocol, referred to as GTP) when agreement, MME receives the business continuance information for the PDN connection that the network equipment is sent, specifically: it is logical that MME receives PCRF Cross the business continuance information that original PGW is connected with the S-GW PDN sent.That is after PCRF determines the business continuance of PDN connection, The business continuance information of PDN connection is sent to former PGW, former PGW is then forwarded to SGW, is sent to MME by SGW.

When the network equipment is PCRF, and the agreement between original PGW and S-GW is proxy mobile internet protocol the 6th edition When IPv6 (Proxy Mobile Internet Protocol Version6, abbreviation PMIPv6) agreement, MME receives network and sets The business continuance information for the PDN connection that preparation is sent, specifically: MME receives industry of the PCRF by the S-GW PDN connection sent Business continuity information.That is after PCRF determines the business continuance of PDN connection, the business continuance information of PDN connection is directly sent out SGW is given, MME is sent to by SGW, this does not need the business continuance information of PDN connection being sent to former PGW in the process.

When the network equipment is original PGW, MME receives the business continuance information for the PDN connection that the network equipment is sent, specifically Are as follows: MME receives business continuance information of the original PGW by the SGW PDN connection sent.That is PGW determines that the business of PDN connection connects After continuous property, the business continuance information of PDN connection is sent to SGW, MME is then forwarded to by SGW.

When the network equipment is the S-GW of UE service, MME obtains the packet data network PDN connection of user equipment (UE) Business continuance information, specifically: MME receives the business continuance information for the PDN connection that S-GW is sent.I.e. SGW determines PDN After the business continuance of connection, business continuance information of the SGW directly by PDN connection is sent to MME.

Second of acquisition modes, MME obtain the continuity information of each carrying in PDN connection, are connected according to PDN and respectively held The continuity information of load obtains the business continuance information of PDN connection.

Wherein, MME obtain PDN connection on each carrying continuity information, specifically: MME be received as UE service SGW or The continuity information of each carrying in the PDN connection that PGW is sent.

MME obtains the business continuance information of PDN connection according to the continuity information of carrying each in PDN connection, specifically: MME judges whether each carrying requires to keep continuous in PDN connection according to the continuity information of carrying each in PDN connection；If Any one carrying in PDN connection needs to keep continuous, then MME determines the business continuance of PDN to need to keep continuous；Such as All carryings all do not need to keep continuous in fruit PDN connection, then MME determines that the business continuance of PDN is not need to keep continuous. Alternatively, MME is when determining that any one carrying in PDN connection needs to keep business continuance, MME is further determined Whether PDN connection meets first operator's selection strategy, if PDN connection meets first operator's selection strategy, MME is true The business continuance of PDN is determined to need to keep continuous；If all carryings all do not need to keep continuous or PDN in PDN connection Any one carrying in connection needs to keep continuous, but the PDN connection is unsatisfactory for first operator's selection strategy, then MME The business continuance for determining PDN is not need to keep continuous.

It may include the PDN connection for needing to keep business continuance in the present embodiment, in first operator's selection strategy Type, operator can formulate different strategies when formulating first operator's selection strategy for different types of PDN connection, Some PDN are connected as needing to keep business continuance, other PDN are connected as not needing to keep business continuance.MME according to The type of current PDN connection determines whether the PDN connection needs to keep connecting.It can also be wrapped in first operator's selection strategy The signing information of user is included, record has the business continuance information of the PDN in the signing information of the user, i.e. the PDN is to need It keeps business continuance or does not need to keep business continuance, MME can be according to the business of the PDN recorded in user signing contract information Continuity information determines whether the PDN connection needs to keep connecting.First operator's selection strategy is formulated by operator, difference fortune Seeking strategy that quotient formulates may be different, and therefore, the first operator's selection strategy mentioned in various embodiments of the present invention can be with It is other strategies, the present invention limits not to this.

Step 102, when trigger condition meets, MME determines that PDN connection is according to the business continuance information of PDN connection No needs keep continuous.

MME is after the business continuance information for getting PDN connection, and when trigger condition meets, MME is connected according to PDN Business continuance information determine whether PDN connection needs to keep continuous, trigger condition can be any in the following conditions here One: the modification that the generation of mobile management event, new business initiation, the creation of original service ending, EPS carrying, EPS are carried With the deletion of EPS.Wherein, the creation of EPS carrying, the modification of EPS carrying and the deletion of EPS are all session management event, specifically Ground, MME, which is determined, to have carried out location updating by UE perhaps UE has been switched to a new MME or has had related to the PDN connection Event when occurring, MME determines whether PDN connection needs to keep continuously according to the business continuance information of PDN connection, i.e. MME Judge whether to need to select new PGW for UE, has event generation relevant to the PDN connection that can specifically refer to here: having new Business is initiated or is terminated, creation, modification and deletion of EPS Bearer etc..If it is judged that be it is no, then follow the steps 103, if it is judged that be it is yes, then follow the steps 104.

Step 103, MME are that UE selects new PGW, and indicates that UE disconnects the connection with the former PGW for UE service, and refer to Show that UE establishes new PDN with new PGW and connect.

It, can be with if MME determines that the PDN connection does not need to keep continuous according to the business continuance information of PDN connection Selecting a new PGW, MME for UE is that UE selects new PGW, specifically: the affiliated access points of MME acquisition original PDN connection The relevant information of (Access Point Name, abbreviation APN) corresponding each PGW, wherein the related letter of the corresponding each PGW of APN Breath includes: the load information of the range information of each PGW and UE, the Delay of each PGW and UE, each PGW；MME is according to APN pairs The relevant information of each PGW answered and the actual demand of UE select new PGW from each PGW for UE.

Wherein, MME obtains the range information with UE of the corresponding each PGW of APN belonging to original PDN connection, specifically: MME DNS query is sent to dns server by domain name system (Domain Name System, the abbreviation DNS) query process of standard Request, for inquiring the corresponding each PGW information of the APN, then, dns server returns to belonging to original PDN connection APN pairs to MME The IP address of each PGW answered, MME receive the IP address of the corresponding each PGW of APN belonging to the former PDN connection that DNS is sent, according to The IP address of each PGW and the location information of UE determine each PGW at a distance from UE.MME can according to each PGW at a distance from UE from Closely arrive the distance-taxis list that remote distance generates PGW, or according to the time delay of each PGW and UE generate from small to large PGW when Prolong sorted lists, or generate the load sorted lists of PGW from small to large according to the load of each PGW, thus according to these sequences List carries out the selection of optimal PGW, and the location information of UE can be with cell ID (Cell Identity, abbreviation cell here ID), tracking area identification (Tracking Area Identity, abbreviation TAI) or Base Station Identification (eNB ID) etc..

Optionally, MME obtains the relevant information of the corresponding each PGW of APN belonging to original PDN connection, can also be by following Mode: MME inquires the relevant information of the corresponding each PGW of APN belonging to original PDN connection from pre-configured database, when So, MME can also be from operation management maintainance (Operation Administration and Maintenance, abbreviation OAM) Center or other external data bases obtain the relevant information of PGW.

It may include many aspects that MME, which selects the judgment principle of suitable PGW for UE, such as MME selects distance UE present bit Nearest PGW is set, or selection loads the shorter PGW etc. of the routed path between smaller PGW, or selection and UE.Optionally, MME may also need to consider the network strategy of operator when selecting new PGW for UE, i.e. MME needs to be selected according to the second operator It selects strategy to determine the need for selecting new PGW for UE, in the case where meeting second operator's selection strategy, MME is UE choosing Select new PGW, second operator's selection strategy is formulated by operator oneself, and second operator's selection strategy can be with are as follows: as the PDN of UE When connection is in ECM-IDLE state, new PGW is selected for UE, alternatively, being all not required to when the PDN connection of UE is under any state New PGW is selected for UE, alternatively, new PGW is selected when the PDN of UE connection does not need to keep business continuance for UE, alternatively, In In any case, all new PGW will not be selected for UE.The selection strategy that different operators are formulated may be different, certainly, second Operator's selection strategy can also be other strategies, and the present invention limits not to this.If second operator's selection strategy To be in EPS Connection Management Idle state (EPS Connection Management-IDLE, abbreviation ECM- when the PDN of UE connection When IDLE), new PGW is selected for UE, then MME is when selecting new PGW for UE, it is also necessary to judge whether the PDN connection of UE is in ECM-IDLE state, only when the PDN of UE connection is in ECM-IDLE state, MME is just that UE selects new PGW, if the PDN of UE connects It connects in ECM-CONNECTION state, the PDN connection of UE needs to keep continuous, and MME cannot select new PGW for UE.The PDN of UE It is connected with ECM-CONNECED state and ECM-IDLE state, UE and network connection under ECM-CONNECED state are able to carry out normal Business；UE is in idle condition under ECM-IDLE state, and UE is disconnected with network, and UE does not have business.

If the PDN connection that MME is determined as UE selects new PGW, initiate to disconnect the PDN connection between UE and original PGW Process, and UE is required to initiate the new PDN connection establishment process based on identical APN, MME can initiate the PDN of UE during this Connection disconnection process, the process can be by all contextual informations relevant to the PDN connection in network All delete.MME can indicate UE and carry out using APN belonging to former PDN connection the selection of new PGW simultaneously, then UE with newly New PDN establishment of connection is completed between PGW.

Step 104, MME keep the connection of UE and original PGW.

If MME determines that the PDN connection needs to keep continuous according to the business continuance information of PDN connection, illustrate PDN There is business to need to keep continuous in the business carried in connection, in order to guarantee the continuity of business, needs to guarantee the IP address of UE It is constant, it is thus impossible to select new PGW, UE still to be communicated using former PGW for UE.

Method provided in this embodiment, MME obtains the business continuance information of the PDN connection of UE, according to the industry of PDN connection Business continuity information determines whether PDN connection needs to keep business continuity；If PDN connection does not need to keep business continuity, MME is that UE selects new PGW, if PDN connection needs to keep business continuity, MME keeps the connection of UE and original PGW.Above-mentioned side Method can guarantee to need to keep the business of the UE of business continuance normally continuous, and each business in not influencing PDN connection Under the premise of business continuance, to be not necessary to guaranty that the UE of business continuance selects the PGW being more suitable for, so that the path of UE is more It is excellent, save route resource.

Fig. 3 is the flow chart of the processing method embodiment two of business continuance of the present invention, is mainly described in the present embodiment It is that the business continuance characteristic of some PDN connection to UE judges, judges whether the PDN connection needs to keep continuous, such as Shown in Fig. 3, business continuance processing method provided in this embodiment the following steps are included:

Step 201, the network equipment obtain the business continuance information of each business carried in PDN connection.

In the present embodiment, the network equipment can be PCRF, be UE service PGW or SGW in any one.

When the network equipment is PCRF, then the network equipment obtains the business continuance letter of each business carried in PDN connection Breath, there are two types of modes: the first acquisition modes, PCRF receive packet detection entity (Traffic Detection Function, letter Claim TDF) send each business Business Stream characteristic information；PCRF determines each business according to the Business Stream characteristic information of each business Business continuance obtains the business continuance information of each business.Second of acquisition modes, PCRF receive each business that TDF is sent Business continuance information, wherein the business continuance information of each business be TDF it is true according to the Business Stream characteristic information of each business Fixed.

In the first acquisition modes, TDF detects the beginning and end of each business carried in PDN connection, works as PDN Have in connection business initiate or at the end of, TDF detects the business, and specific detection method can use such as depth Packet detection (Deep Packet Inspection, abbreviation DPI) technology etc., and the Business Stream for obtaining business according to testing result is special Reference breath, herein, Business Stream characteristic information may be any information relevant to Business Stream, as business five-tuple information or The application layer message of business, the five-tuple information of business include: former IP address, purpose IP address, former port numbers, destination port Number, protocol type.After TDF gets the Business Stream characteristic information of business, Business Stream characteristic information is sent to PCRF.

PCRF is after getting the Business Stream characteristic information of each business of TDF transmission, according to the Business Stream feature of each business Information determines the business continuance of each business, specifically: PCRF is according to the Business Stream characteristic information of each business, and is stored in advance Or the business continuance characteristic information of the various businesses obtained from external data base (third party's business platform or DPI database) Determine the business continuance of each business.That is the business continuance information of every kind of business, i.e. which kind of business are pre-saved on PCRF It needs to keep continuity, which kind of business does not need to keep continuity, then, and preparatory according to getting Business Stream characteristic information The business continuance of each business of storage is matched, for example, the business of QQ business and VoIP business is stored on PCRF Continuity information, the business continuance information of QQ business are not need to keep continuity, the business continuance information of VoIP business To need to keep continuous, PCRF according to the information of five-tuple information and application layer in the service feature stream information got, Determine whether the business is QQ business, if it is QQ business, it is determined that the business does not need to keep business continuance, if the industry Business is VoIP business, it is determined that the business needs to keep business continuance.

In second of acquisition modes, TDF detects business, after getting the Business Stream characteristic information of business, according to The Business Stream characteristic information of business determines that method identical with PCRF can be used according to Business Stream in the business continuance of business, TDF Characteristic information determines the business continuance of business, and which is not described herein again.

When the network equipment is the PGW of UE service, the business that the network equipment obtains each business carried in PDN connection connects Continuous property information, specific there are two types of modes: the first acquisition modes, PGW receive each industry carried in the PDN connection that PCRF is sent The business continuance information of business, wherein the business continuance of each business carried in PDN connection is by PCRF according to the industry of each business Business stream characteristic information determines.Second of acquisition modes, when have in PDN connection new business initiate or at the end of, PGW obtains each The Business Stream characteristic information of business, PGW determine the business continuance of each business according to the Business Stream characteristic information of each business, obtain The business continuance information of each business.Wherein, the Business Stream characteristic information of each business can be detected to obtain by TDF, then be sent To PGW.

As the SGW that the network equipment is UE service, the network equipment obtains the business continuity of each business carried in PDN connection Property information, specifically: SGW receives the business continuance information of each business carried in the PDN connection that PCRF is sent, wherein PDN The business continuance of each business carried in connection is determined by PCRF according to the Business Stream characteristic information of each business.

Step 202, the network equipment connect the business continuance acquisition of information PDN connection of each business carried according to PDN Business continuance information.

The business that the network equipment connects the business continuance acquisition of information PDN connection of each business carried according to PDN connects Continuous property information, specifically: the network equipment connects the business continuance information of each business carried according to PDN, judges each business Whether require to keep continuous；If any one business in each business carried in PDN connection needs to keep continuous, net Network equipment determines the business continuance of PDN connection to need to keep continuous；If all business carried in PDN connection are all not required to Keep continuous, then the network equipment determines that the business continuance of PDN connection is not need to keep continuous.Alternatively, the network equipment exists Determine that any one business in each business carried in PDN connection needs to keep continuous, further, the network equipment determines Whether PDN connection meets first operator's selection strategy, if PDN connection meets first operator's selection strategy, network is set The standby business continuance for determining PDN is to need to keep continuous；If all business all do not need to keep continuous in PDN connection, or Any one business in person's PDN connection needs to keep continuous, but PDN connection is unsatisfactory for first operator's selection strategy, then The network equipment determines that the business continuance of PDN connection is not need to keep continuous.

In detail below come illustrate the network equipment connected according to PDN each business carried business continuance information judgement The method of the business continuance of the PDN connection.The business continuance information of PDN connection includes: that (a) needs to keep business continuity Property；(b) it does not need to keep business continuance；(c) it only needs to keep business continuance in ECM-CONNECTED state.Whenever PDN There is business to start or terminate in connection, the network equipment just updates PDN connection according to the business continuance information of the business Business continuance information.Here, the business continuance of entire PDN connection is judged by the business continuance information of each business Principle are as follows: only when all business carried in the PDN connection all do not need keep business continuance when, the PDN connection It does not just need to keep business continuance；If having a business to need to keep business continuance in the PDN connection, which connects It connects and just needs to keep business continuance.

Herein, it is also assumed that the business continuance information of each business of PDN connection has priority, business continuance Priority is followed successively by (a), (b), (c) from high in the end, the business continuance of PDN connection always connect with the PDN in priority most The business continuance of high business is consistent.During concrete implementation, for the ease of when some service endings to PDN The business continuance of connection judges that the network equipment can be the business continuance dimension of every kind of business in the context of PDN connection A counter is protected, which is used to record the quantity for the business for belonging to business continuance corresponding to the counter, counts The initial value of device is 0, and whenever having a business to establish, the corresponding counter of business continuance corresponding to the business is added 1, whenever a service ending, the value of the corresponding counter of business continuance corresponding to the business is subtracted 1, counter Value is 0 and shows that there is no the business for needing to keep business continuance in the PDN connection.

When the network equipment is SGW, the business continuance information that the network equipment connects each business carried according to PDN is obtained The business continuance information of PDN connection is taken, specifically: SGW connects the business continuance information of each business carried according to PDN Determine the continuity of each carrying in PDN connection, SGW judges in PDN connection according to the continuity information of carrying each in PDN connection Whether each carrying requires to keep continuous；If any one carrying in PDN connection needs to keep continuous, SGW determines PDN Business continuance be to need to keep continuous；If all carryings all do not need to keep continuous in PDN connection, SGW determines PDN Business continuance be not need to keep continuous.Alternatively, SGW connects the business continuance letter of each business carried according to PDN Cease the continuity for determining the upper each carrying of PDN connection, if any one carrying needs holding in PDN connection is continuously, SGW into One step determines whether PDN first meets operator's selection strategy；If PDN connection meets first operator's selection strategy, SGW The business continuance of PDN is determined to need to keep continuous；If all carryings all do not need to keep continuous in PDN connection, or Any one carrying in PDN connection needs to keep continuous, but PDN connection is unsatisfactory for first operator's selection strategy, then SGW determines that the business continuance of PDN is not need to keep continuous.

Step 203, the network equipment send the business continuance information of PDN connection to MME.

When the network equipment is PCRF, and the agreement between PGW and S-GW is GTP agreement, the network equipment is sent to MME The business continuance information of PDN connection, specifically: PCRF sends the business continuance that PDN is connected to MME with S-GW by PGW The business continuance information of PDN connection is first sent to PGW by information, i.e. PCRF, and PGW relays to SGW, is sent to by SGW MME。

When the network equipment is PCRF, and the agreement between PGW and SGW is PMIPv6 agreement, the network equipment is sent to MME The business continuance information of PDN connection, specifically: PCRF sends the business continuance information of PDN connection by SGW to MME, That is the business continuance information of PDN connection is transmitted directly to SGW by PCRF, is then forwarded to MME by SGW, does not need to pass through PGW.

When the network equipment is PGW, the network equipment sends the business continuance information of PDN connection to MME, specifically: PGW The business continuance information of PDN connection is sent to MME by SGW, i.e. the business continuance information of PDN connection is sent to by PGW SGW is sent to MME by SGW.

In the present embodiment, it can define the business continuance information that a new message parameter carries PDN connection, such as define one A PDN connection service type.Frequently connect to the business that MME sends PDN connection to reduce the network equipment Continuous property information, in the present embodiment, when the network equipment can determine that the business continuance of PDN connection changes, just to MME transmission The business continuance information of PDN connection.If UE has initiated a new business, and the new business does not need to keep business continuance, And all business of the UE before the new business all do not need to keep business continuance, the then business continuance of the PDN connection Still not need to keep be continuous, the business continuance information of the PDN connection does not change, and the network equipment is sent out without repeating Send the message for not needing to keep business continuance.If the new business needs to keep business continuance, and before the new business All business of UE are all not necessary to guaranty that business continuance, so, the business continuance of the PDN connection is not by needing the company of holding The continuous needs that become keep continuous, and the business continuance information of the PDN connection is changed, and the network equipment, which needs to send, to be kept The message of business continuance.By above-mentioned mode, only when the business continuance information of PDN connection changes, network is set It is standby just to send business continuance message to MME, the occupied resource of business continuance information is sent to reduce.

If a PDN connection is just established, the network equipment just sends the industry of PDN connection after preset duration to MME It is engaged in continuity information, when preventing PDN connection is rigid from establishing, UE establishes different business in a short period of time, and these business With different business continuances, the network equipment needs to send the business continuance of a plurality of PDN connection to MME in the very short time Information causes the waste of resource.

Method provided in this embodiment, MME pass through the business continuance information for obtaining each business carried in PDN connection, The business continuance of the business continuance acquisition of information PDN connection of each business carried is connected according to PDN, and PDN is connected Business continuance information be sent to MME so that business continuance information of the MME according to the PDN connection of UE, to need to keep The UE of business continuity keeps the connection of UE and original PGW, not need to keep the UE of business continuance to select new PGW, can guarantee Need to keep the business of the UE of business continuance normally continuous, and the business continuance of business in not influencing PDN connection Under the premise of, it can be that the PGW for being not necessary to guaranty that the UE selection of business continuance is more suitable for is saved so that the path of UE is more excellent Route resource.

Several specific embodiments are used below, and the technical solution of embodiment of the method shown in Fig. 3 is described in detail.

Fig. 4 is the signaling process figure of the processing method embodiment three of business continuance of the present invention, in the present embodiment, by PCRF It determines the business continuance of PDN connection, and the business continuance information of PDN connection is sent to MME, the field that the present embodiment is directed to Scape is scene of the S5/S8 interface between PGW and SGW using GTP agreement, i.e., PCRF can be by PDN connection under the scene Business continuance characteristic information is directly transmitted to PGW.As shown in figure 4, method provided in this embodiment the following steps are included:

Step 301, TDF detection obtain the Business Stream characteristic information of business in PDN connection.

TDF detects the beginning and end of the business carried in PDN connection, has when TDF is detected in PDN connection Business initiate or at the end of, TDF detects the Business Stream, and TDF can be detected using DPI technology, certainly, can also To be detected using other methods.The Business Stream characteristic information of business may be any information relevant to Business Stream, example Such as the five-tuple information of business, entrained application layer message in Business Stream.

The Business Stream characteristic information of the business is sent to PCRF by step 302, TDF.

Step 303, the business continuance that the business is determined according to the Business Stream characteristic information of the business, and according to the business Business Stream characteristic information connect the business continuance information of other business with the PDN and determine the business continuance of the PDN.

The business continuance information of each business carried in the business continuance information or PDN connection of PDN connection includes: (a) it needs that business continuance (b) is kept not need that business continuance (c) is kept only to need to keep industry in ECM-CONNECTED state Business continuity.

Here, PCRF judges the business continuance of entire PDN connection by the business continuance information of each business Principle are as follows: only when carrying all business in the PDN connection and all not needing to keep business continuance, the PDN connection is just not It needs to keep business continuance；As soon as if thering is a business to need to keep business continuance in the PDN connection, then the PDN connection It needs to keep business continuance.Alternatively, any one business in each business that PCRF is carried on determining PDN connection needs Keep continuous, further, PCRF determines whether PDN connection meets first operator's selection strategy, if PDN connection is full First operator's selection strategy of foot, then PCRF determines the business continuance of PDN connection to need to keep continuous, if PDN connection It is unsatisfactory for first operator's selection strategy, then PCRF determines that the business continuance of PDN connection is not need to keep continuous.

Specific method is referred to the description in two step 202 of embodiment, and which is not described herein again.

Step 304, PCRF send decision and charging regulation message to PGW, include PDN in the decision and charging regulation message The business continuance information of connection.

In the present embodiment, PCRF carries the business continuance information of PDN connection in decision and charging regulation message It is sent to PGW in (Policy and Charging Rules Provision), strategy is integrated on the PGW and is executed with charging Function (Policy and Charging Enforcement Function, abbreviation PCEF) entity, accordingly it is also possible to think Decision and charging regulation message have been sent to PCEF by PCRF.

Step 305, PGW send bearer update request to SGW, and the business comprising PDN connection connects in bearer update request Continuous property information.

The business continuance information of PDN connection is carried and requests (Update Bearer Request) in bearer update by PGW In be sent to SGW.

Step 306, SGW send bearer update request to MME, and the business comprising PDN connection connects in bearer update request Continuous property information.

The business continuance information of PDN connection is carried and requests (Update Bearer Request) in bearer update by SGW In be sent to MME.

Step 307, MME store the business continuance information of the PDN connection received.

The business continuance information that MME receives PDN connection carries out preservation maintenance to the information later, so as in triggering item When part occurs, determine whether PDN connection needs to keep continuous according to the business continuance information of PDN connection.

The business continuance information that MME receives PDN connection carries out preservation maintenance to the information later, to be in decision As judgment condition when the no gravity treatment that can carry out PGW.

Normal bearer update process, bearer update process and existing skill are carried out after step 307, between MME and UE Art is identical, and which is not described herein again.And after bearer update, MME returns to bearer update response to SGW, and SGW is returned to PGW Bearer update response, PGW returns to decision to PCRF and charging policy responds.

It should be noted that in other embodiments of the invention, being used when the S5/S8 interface between PGW and SGW PMIPv6 agreement, PCRF needs the business continuance information by PDN connection to be sent to SGW rather than PGW at this time, other steps with Embodiment three is identical.

Fig. 5 is the signaling process figure of the processing method example IV of business continuance of the present invention, the present embodiment and implementation three Difference be, in the present embodiment, PCRF only the business continuance of the single business in PDN connection is judged, to entire The business continuance of PDN connection is completed by PGW, and the scene that is directed to of the present embodiment is the S5/S8 interface between PGW and SGW Using the scene of GTP agreement.As shown in figure 5, method provided in this embodiment the following steps are included:

Step 401, TDF detection obtain the Business Stream characteristic information of the business in PDN connection.

Specific implementation can refer to the description of three step 301 of embodiment, and which is not described herein again.

The Business Stream characteristic information of the business is sent to PCRF by step 402, TDF.

Step 403, PCRF determine the business continuance of the business according to the Business Stream characteristic information of the business.

Step 404, PCRF send decision and charging regulation message to PGW, and including in the decision and charging regulation message should The business continuance information of business.

In the present embodiment, PCRF only judges the business continuance of the single business in PDN connection, then, will be single The business continuance information of a business is sent to PGW, and PCRF can carry the business continuance information of the business in decision and meter PGW is sent in expense Rules Message (Policy and Charging Rules Provision).

Step 405, PGW determine that the business of the PDN connects according to the business continuance information of all business in the PDN connection Continuous property.

The business continuance information that PGW connects other business according to the business continuance information of the business with the PDN is true The business continuance of the fixed PDN, specific implementation can refer to the description of three step 304 of embodiment, and which is not described herein again, this It is that executing subject is different in embodiment.

In this implementation, PCEF is integrated on the PGW, therefore, here it can be appreciated that PCRF is by decision and charging regulation Message is sent to PCEF, and the business for connecting other business with the PDN according to the Business Stream characteristic information of the business by PCEF connects Continuous property information determines the business continuance of the PDN.

Step 406, PGW send bearer update request to SGW, and the business comprising PDN connection connects in bearer update request Continuous property information.

Step 407, SGW send bearer update request to MME, and the business comprising PDN connection connects in bearer update request Continuous property information.

Step 408, MME store the business continuance information of the PDN connection received.

After step 408, normal bearer update process, bearer update process and existing skill are carried out between MME and UE Art is identical, and which is not described herein again.And after bearer update, MME returns to bearer update response to SGW, and SGW is returned to PGW Bearer update response, PGW returns to decision to PCRF and charging policy responds.

Fig. 6 is the signaling process figure of the processing method embodiment five of business continuance of the present invention, the present embodiment and implementation four Difference be,, will be single after PCRF judges the business continuance of the single business in PDN connection in the present embodiment The business continuance information of a business is sent to SGW, is judged by business continuance of the SGW to entire PDN connection, the present embodiment For scene be scene that S5/S8 interface between PGW and SGW uses PMIPv6 agreement.As shown in fig. 6, the present embodiment mentions The method of confession the following steps are included:

Step 501, TDF detection obtain the Business Stream characteristic information of the business in PDN connection.

The Business Stream characteristic information of the business is sent to PCRF by step 502, TDF.

Step 503, PCRF determine the business continuance of the business according to the Business Stream characteristic information of the business.

The business continuance information of the business is sent to SGW by step 504, PCRF.

In the present embodiment, PCRF only judges the business continuance of the single business in PDN connection, then, will be single The business continuance information of a business is sent to SGW, and PCRF can carry the business continuance information of the business in gateway control SGW is sent to in qos policy (Gateway control and QoS Rules Provision) message.

Step 505, SGW determine the business continuity of the PDN according to the business continuance information of business all in PDN connection Property.

Specific implementation can refer to the description of three step 304 of embodiment, and which is not described herein again, only hold in the present embodiment Row main body is different.

It, can be by the bearing binding and event reporting function (Bearing Binding and Event on SGW in this implementation Report Function, abbreviation BBERF) the business continuance information of all business in PDN connection determines the business of the PDN Continuity.

Step 506, SGW send bearer update request to MME, and the business comprising PDN connection connects in bearer update request Continuous property information.

Step 507, MME store the business continuance information of the PDN connection received.

Normal bearer update process, bearer update process and existing skill are carried out after step 507, between MME and UE Art is identical, and which is not described herein again.And after bearer update, MME returns to bearer update response to SGW, and SGW is returned to PCRF Return gateway control and qos policy response.

Fig. 7 is the signaling process figure of the processing method embodiment six of business continuance of the present invention, the present embodiment and implementation four Difference be that in the present embodiment, the business continuance information of single business is sent to PGW by PCRF, and PGW is according to single industry The business continuance information of business judges to carry the business continuance characteristic of the carrying (bearer) of the business, then passes through SGW The business continuance characteristic of carrying is sent to MME, finally, in being connected by MME according to PDN each carrying business continuance Characteristic determines the business continuance of PDN connection, and it is GTP agreement that embodiment, which is directed to the S5/S8 interface between PGW and SGW, Scene.As shown in fig. 7, method provided in this embodiment the following steps are included:

Step 601, TDF detection obtain the Business Stream characteristic information of the business in PDN connection.

The Business Stream characteristic information of the business is sent to PCRF by step 602, TDF.

Step 603, PCRF determine the business continuance of the business according to the Business Stream characteristic information of the business.

Step 604, PCRF send decision and charging regulation message to PGW, and including in the decision and charging regulation message should The business continuance information of business.

Step 605, PGW determine the business according to the business continuance information of each business in the corresponding carrying of the business The business continuance of corresponding carrying.

There are multiple carryings in one PDN connection, multiple business can be carried in each carrying, here, SGW is according to the industry The business continuance information for each business being engaged in corresponding carrying determines the business continuance of the corresponding carrying of the business, SGW According to the principle for the business continuance that the judgement of the business continuance information of each business entirely carries are as follows: only when institute in the carrying Some business all do not need to keep business continuance, which does not just need to keep business continuance, if having one in the carrying A business needs to keep business continuance, which just needs to keep business continuance.

In the present embodiment, the business continuance of each business carried in the business continuance information or PDN connection of PDN connection Information or the business continuance information of carrying may include that (a) needs to keep business continuance；(b) only in ECM-CONNECTED State needs to keep business continuance；(c) it does not need to keep business continuance, only lists 3 kinds of business continuance information herein, But system that the present invention is not limited thereto, the continuity information of business can also include other information.

In the present embodiment, it is believed that business continuance has priority in 3, and the priority of business continuance is from high in the end Be followed successively by (a), (b), (c), the business continuance of the PDN connection always connect with the PDN in highest priority carrying industry Business continuity is consistent.In specific implementation, MME can carry the business continuity of the carrying in the context of each carrying Property information, so as to when have Business Stream start or at the end of be used to judge the business continuance characteristic of PDN connection.

Step 606, PGW send bearer update request to SGW, include the corresponding carrying of the business in bearer update request Business continuance information.

Step 607, SGW send bearer update request to MME, include the corresponding carrying of the business in bearer update request Business continuance information.

Step 608, MME determine the business continuity of PDN connection according to the business continuance information of carrying each in PDN connection Property.

After MME receives the business continuance information of the corresponding carrying of the business, according to the continuous of carrying each in PDN connection Property acquisition of information PDN connection business continuance, specifically: MME is according to the continuity information of carrying each in PDN connection, judgement Whether each carrying requires to keep continuous in PDN connection；If any one carrying in PDN connection needs to keep continuous, MME determines the business continuance of PDN to need to keep continuous；If all carryings all do not need to keep continuous in PDN connection, MME determines that the business continuance of PDN is not need to keep continuous.In other implementation, MME is on determining PDN connection Any one carrying need to keep continuous after, further determine whether the PDN connection meets the first operator and select plan Slightly, if PDN connection meets first operator's selection strategy, MME determines the business continuance of the PDN to need the company of holding It is continuous；If PDN connection is unsatisfactory for first operator's selection strategy, MME determines that the business continuance of the PDN is not need to keep Continuously.

Step 609, MME store the business continuance information of PDN connection.

MME carries out preservation maintenance to the business continuance information of PDN connection, so as to when trigger condition occurs, according to PDN The business continuance information of connection determines whether PDN connection needs to keep continuous.

Normal bearer update process, bearer update process and existing skill are carried out after step 609, between MME and UE Art is identical, and which is not described herein again.And after bearer update, MME returns to bearer update response to SGW, and SGW is returned to PGW Bearer update response, PGW returns to decision to PCRF and charging regulation responds.

Fig. 8 is the signaling process figure of the processing method embodiment seven of business continuance of the present invention, the present embodiment and implementation six Difference be that in the present embodiment, the business continuance information of single business is sent to SGW by PCRF, rather than PGW, SGW Judge to carry the business continuance characteristic of the carrying (bearer) of the business according to the business continuance information of single business, so The business continuance characteristic of carrying is sent to MME afterwards, finally, in being connected by MME according to PDN each carrying business continuity Property characteristic determine the business continuance of PDN connection, it is PMIPv6 that embodiment, which is directed to the S5/S8 interface between PGW and SGW, The scene of agreement.As shown in figure 8, method provided in this embodiment the following steps are included:

Step 701, TDF detection obtain the Business Stream characteristic information of business in PDN connection.

The Business Stream characteristic information of the business is sent to PCRF by step 702, TDF.

Step 703, PCRF determine the business continuance of the business according to the Business Stream characteristic information of the business.

Step 704, PCRF send gateway control and qos policy message to SGW, in the gateway control and qos policy message Business continuance information comprising the business.

In the present embodiment, PCRF only judges the business continuance of the single business in PDN connection, then, will be single The business continuance information of a business is sent to SGW, and PCRF can carry the business continuance information of the business in gateway control SGW is sent to qos policy (Gateway control and QoS Rules Provision) message.

Step 705, SGW determine the business according to the business continuance information of each business in the corresponding carrying of the business The business continuance of corresponding carrying.

It specifically can refer to six kinds of PGW of embodiment to be believed according to the business continuance of each business in the corresponding carrying of the business The business continuance for determining the corresponding carrying of the business is ceased, which is not described herein again.

In this implementation, BBERF is integrated on SGW, it can be by the BBERF on SGW according to the PDN all business connected Business continuance information determines the business continuance of the PDN.

Step 706, SGW send bearer update request to MME, include the corresponding carrying of the business in bearer update request Business continuance.

Step 707, MME determine the business continuity of PDN connection according to the business continuance information of carrying each in PDN connection Property.

Step 708, MME store the business continuance information of PDN connection.

Normal bearer update process, bearer update process and existing skill are carried out after step 708, between MME and UE Art is identical, and which is not described herein again.And after bearer update, MME returns to bearer update response to SGW, and SGW is returned to PCRF Return gateway control and qos policy response.

Above-described embodiment three, which has into embodiment seven by PCRF, judges business continuance characteristic, but is having In a little situations, when TDF functional entity is disposed, the continuity of business can also directly be judged by TDF.Such as Fig. 9 Shown, Fig. 9 is the signaling process figure of the processing method embodiment eight of business continuance of the present invention, in the present embodiment by TDF come pair The continuity of business directly judged, method provided in this embodiment, comprising the following steps:

Step 801, TDF detection obtain the Business Stream characteristic information of the business in PDN connection.

Step 802, TDF determine the business continuance of the business according to the Business Stream characteristic information of the business.

Specifically, it can refer to the business that PCRF in embodiment three determines the business according to the Business Stream characteristic information of the business Successional method, which is not described herein again.

Step 803, TDF send the business continuance information of the business to PCRF.

Step 804, PCRF determine the business of the PDN connection according to the business continuance information of business all in PDN connection Continuity.

Step 805, PCRF send the business continuance information of the PDN connection to MME.

Step 806, MME store the business continuance information of the PDN connection received.

Normal bearer update process, bearer update process and existing skill are carried out after step 806, between MME and UE Art is identical, and which is not described herein again.And after bearer update, MME is to PCRF returning response.

Figure 10 is the signaling process figure of the processing method embodiment nine of business continuance of the present invention, and the present embodiment is directed to PGW itself is integrated with PCEF, and PCEF be integrated with again using detection control (Application Detection Control, Abbreviation ADC) entity, ADC entity can complete the function that TDF entity is completed in embodiment eight, can complete to Business Stream spy The detection of property.As shown in Figure 10, method provided in this embodiment the following steps are included:

Step 901, PGW obtain the business continuity information of each business carried in PDN connection.

When there is new Business Stream to initiate in PDN connection or at the end of, the business of the ADC entity detection business of PCEF connects Continuous, in this implementations, acquisition for the business continuance information of each business can be by ADC to the information progress in data packet It directly extracts and is also possible to ADC to obtain by being analyzed the business Flow Behavior passed through in a period of time to obtain, such as When ADC can not extract effective Business Stream characteristic information from the single data packet of Business Stream, to judge the industry of Business Stream When continuity characteristic of being engaged in, then ADC can whithin a period of time detect the Business Stream, by traffic data packet row For analysis come the business continuance characteristic that is inferred to Business Stream.

Step 902, PGW determine the business continuity of the PDN connection according to the business continuity information of business each in PDN connection Property.

Specific implementation can refer to the description of step 303 in embodiment three, only the difference of executing subject and implementation three , therefore which is not described herein again.

Step 903, PGW send the business continuance information of the PDN connection to MME.

Step 904, MME store the business continuance information of the PDN connection received.

Normal bearer update process is carried out after step 904, between MME and UE.Bearer update process and existing skill Art is identical, and which is not described herein again.

Step 906, MME are to PGW returning response message.

For MME to PGW returning response message, which is the response to step 903.

Figure 11 is the structural schematic diagram of mobile management entity embodiment one of the present invention, as shown in figure 11, the present embodiment provides MME include: obtain module 11, determining module 12, gateway selecting module 13 and connection keep module 14.

Wherein, module 11 is obtained, the business continuance letter of the packet data network PDN connection for obtaining user equipment (UE) Breath；

Determining module 12, for determining institute according to the business continuance information of the PDN connection when trigger condition meets State whether PDN connection needs to keep business continuity；The trigger condition is any one in the following conditions: mobile management event Generation, new business initiation, original service ending, the creation of the grouping system EPS carrying of evolution, the modification of EPS carrying and EPS The deletion of carrying.

Gateway selecting module 13 is when being for the judging result in the determining module 12, is new point of UE selection Group data gateway PGW, and indicate that the UE disconnects the connection with the former PGW for UE service, and the instruction UE and institute It states new PGW and establishes new PDN connection；

Connection keep module 14, for the judging result in the determining module 12 be it is no when, keep the UE with it is described The connection of former PGW.

The module 11 that obtains is specifically used for: the business continuance information for the PDN connection that the network equipment is sent is received, Wherein, the business continuance information of the PDN connection is by the network equipment according to each business carried in the PDN connection Continuity information determines.In the present embodiment, the network equipment is policy control Rulemaking entity PCRF, the original PGW, is described UE service gateway S-GW in any one.

When the network equipment is the PCRF, and the agreement between original PGW and the S-GW is wireless universal When packet service technology tunnel label GTP agreement, the acquisition module 11 is specifically used for: receiving the PCRF and passes through the original The business continuance information that PGW is connected with the PDN that the S-GW is sent.That is, the business continuity of the PDN connection Property information is determined that the business continuance information that the PDN is connected is sent to PGW by PCRF by PCRF, and then PGW is by the PDN The business continuance information of connection is transmitted to SGW, is being sent to the MME by SGW.

When the network equipment is the PCRF, and the agreement between original PGW and the S-GW is agency's movement When the 6th edition PMIPv6 agreement of Internet protocol, the acquisition module 11 is specifically used for: receiving the PCRF and is sent out by the S-GW The business continuance information for the PDN connection sent.That is, the business continuance information of the PDN connection is true by PCRF Fixed, the business continuance information that the PDN is connected is sent to SGW by PCRF, is being sent to the MME by SGW.

When the network equipment is the original PGW, the acquisition module 11 is specifically used for: receiving the original PGW and passes through The business continuance information for the PDN connection that the SGW is sent.That is, the business continuance information of the PDN connection It is determined by PGW, then, the business continuance information that the PDN is connected is sent to SGW by PGW, described being sent to by SGW MME。

When the network equipment is the S-GW of the UE service, the acquisition module 11 is specifically used for: described in reception The business continuance information for the PDN connection that S-GW is sent.That is, the business continuance information of the PDN connection by SGW determines that then, the business continuance information that the PDN is connected is sent to the MME by SGW.

In the present embodiment, the gateway selecting module 13 includes: acquiring unit and determination unit.Acquiring unit, for obtaining Take the relevant information of the corresponding each PGW of affiliated access points APN of the original PDN connection, wherein the APN is corresponding The relevant information of each PGW include: the range information of each PGW and the UE, each PGW and the UE Delay, The load information of each PGW；Determination unit, for according to the relevant information of the corresponding each PGW of the APN and the UE Actual demand is that the UE selects new PGW from each PGW.

The acquiring unit is specifically used for obtaining the affiliated access points of the original PDN connection in the following manner The information of the corresponding each PGW of APN: the acquiring unit is inquired from pre-configured database belonging to the original PDN connection The corresponding each PGW of access points APN relevant information.When the information of PGW is the range information of the PGW and UE, obtain Unit is taken to be specifically used for: firstly, DNS query request is sent to domain name system server DNS, it is corresponding for inquiring the APN Each PGW information；Then, acquiring unit receives the internet protocol address for each PGW that the DNS is sent, according to institute The IP address for stating each PGW determines each PGW at a distance from the UE.

In a kind of implementation of this implementation, the gateway selecting module 13 is specifically used for: being selected according to the second operator Strategy is selected to determine the need for selecting new PGW for the UE.Second operator selection strategy are as follows: when the PDN of the UE connects When connecing in EPS Connection Management Idle state ECM-IDLE state, new PGW is selected for the UE, alternatively, the PDN as the UE connects It connects and does not all need to select new PGW for the UE under any state, alternatively, when the PDN connection of the UE does not need to keep industry New PGW is selected when continuity of being engaged in for the UE.

MME provided in this embodiment, can be used for executing embodiment of the method one offer technical solution, specific implementation and Technical effect is similar, and which is not described herein again.

Figure 12 is that the structural schematic diagram of mobile management entity embodiment two of the present invention is compared with MME shown in Figure 11, this In embodiment, determine whether the PDN connection needs to keep business continuity by MME oneself, other implementations and Figure 11 Shown in device it is similar, so it will not be repeated.As shown in Figure 12, MME provided in this embodiment includes: to obtain module 21, determine mould Block 22, gateway selecting module 23 and connection keep module 24.

Wherein, module 21 is obtained, the business continuance letter of the packet data network PDN connection for obtaining user equipment (UE) Breath；

Determining module 22, for determining institute according to the business continuance information of the PDN connection when trigger condition meets State whether PDN connection needs to keep business continuity；The trigger condition is any one in the following conditions: mobile management event Generation, new business initiation, original service ending, the creation of the grouping system EPS carrying of evolution, the modification of EPS carrying and EPS The deletion of carrying.

Gateway selecting module 23 is when being for the judging result in the determining module 22, is new point of UE selection Group data gateway PGW, and indicate that the UE disconnects the connection with the former PGW for UE service, and the instruction UE and institute It states new PGW and establishes new PDN connection；

Connection keep module 24, for the judging result in the determining module 22 be it is no when, keep the UE with it is described The connection of former PGW.

In the present embodiment, determining module 22 is specifically used for: obtaining the continuity information of each carrying in the PDN connection, root The business continuance information of the PDN connection is obtained according to the continuity information of each carrying in the PDN connection.

In a kind of implementation, the determining module 22 obtains the industry of the PDN connection especially by following manner Business continuity information: determining module 22 obtains the continuity information of each carrying in the PDN connection, according in the PDN connection The continuity information respectively carried judges whether each carrying requires to keep continuous in the PDN connection；If the PDN connection On any one carrying need to keep continuous, it is determined that module 22 determines that the business continuance of the PDN is to need the company of holding It is continuous；If all carryings all do not need to keep continuous in the PDN connection, it is determined that module 22 determines that the business of the PDN connects Continuous property is not need to keep continuous.

In another implementation, determining module 22 obtains the business continuity of the PDN connection especially by following manner Property information: determining module 22 obtains the continuity information of each carrying in the PDN connection, according to each carrying in the PDN connection Continuity information, judge whether each carrying requires to keep continuous in the PDN connection；If appointing in the PDN connection It anticipates one and carries needs holding continuously, determining module 22 determines whether the PDN connection meets first operator's selection strategy；Such as The connection of PDN described in fruit meets first operator selection strategy, it is determined that module 22 determines the business continuance of the PDN To need to keep continuous；If all carryings all do not need to keep in the continuous or described PDN connection in the PDN connection Any one carrying needs to keep continuous, but PDN connection is unsatisfactory for first operator selection strategy, it is determined that mould Block 22 determines that the business continuance of the PDN is not need to keep continuous.

In above two mode, determining module 22 obtains the continuity information of each carrying in the PDN connection specifically: connects Receive the continuity information of each carrying in the PDN connection sent for the SGW or PGW of UE service.

Method provided in this embodiment can be used for the technical solution of executive mode embodiment one, specific implementation and skill Art effect is similar, and which is not described herein again.

Figure 13 is the structural schematic diagram of inventive network apparatus embodiments one, as shown in figure 13, net provided in this embodiment Network equipment, comprising: first, which obtains module 31, second, obtains module 32, sending module 33.

Wherein, first module 31 is obtained, for obtaining the business continuance information of each business carried in PDN connection；

Second obtains module 32, for the business continuance acquisition of information according to each business carried in the PDN connection The business continuance information of the PDN connection；

Sending module 33, for sending the business continuance information of the PDN connection to mobile management entity MME.

In a kind of implementation, the second acquisition module 32 is specifically used for: according to each industry carried in the PDN connection The business continuance information of business, judges whether each business requires to keep connection；If carried in the PDN connection each Any one business in business needs to keep continuous, it is determined that the business continuance of the PDN connection is to need to keep continuous； If all business carried in the PDN connection all do not need to keep continuous, it is determined that the business continuance of the PDN connection Not need to keep be continuous.

In another implementation, the second acquisition module 32 is specifically used for: each according to carrying in the PDN connection The business continuance information of business, judges whether each business requires to keep continuous；If carried in the PDN connection Any one business in each business needs to keep continuous, determines whether the PDN connection meets first operator's selection strategy； If the PDN connection meets first operator selection strategy, it is determined that the business continuance of the PDN is to need to keep Continuously；If any one that all carryings all do not need to keep in the continuous or described PDN connection in the PDN connection is held It carries and needs to keep continuous, but PDN connection is unsatisfactory for first operator selection strategy, it is determined that the industry of the PDN Business continuity is not need to keep continuous.

When the network equipment is policy control Rulemaking entity PCRF, the first acquisition module 31 includes: to receive Unit and determination unit, receiving unit are used to receive the Business Stream characteristic information for each business that packet detection entity TDF is sent；It determines Unit is used to determine the business continuance of each business according to the Business Stream characteristic information of each business, obtains each industry The business continuance information of business.The Business Stream characteristic information of each business includes: the five-tuple information or described of the business The application layer message of business.Here, the determination unit is specifically used for: according to the Business Stream characteristic information of each business, with And the business continuance characteristic information for the various businesses type for being stored in advance or obtaining from external data base determines each industry The business continuance of business.

In the present embodiment, the network equipment can be policy control Rulemaking entity PCRF, SGW, PGW.

When the network equipment is body PCRF, the first acquisition module 31 is specifically used for: receiving packet detection entity TDF hair The business continuance information for each business sent, wherein the business continuance information of each business is the TDF according to institute State the Business Stream characteristic information determination of each business.

When the network equipment be PCRF, and for the UE service packet data gateway PGW and gateway S-GW it Between agreement be packet radio service technology tunnel label GTP agreement；The sending module is specifically used for: by the PGW and The S-GW sends the business continuance information of the PDN connection to the MME.When the network equipment is policy control rule Entity PCRF is formulated, and the agreement between the PGW and the S-GW of UE service is proxy mobile internet protocol the 6th Version PMIPv6 agreement；The sending module 33 is specifically used for: sending the industry of the PDN connection to the MME by the S-GW Business continuity information.

As the PGW that the network equipment is the UE service, the second acquisition module 32 is specifically used for: receiving PCRF The business continuance information of each business carried in the PDN connection sent, wherein each industry carried in the PDN connection The business continuance of business is determined by the PCRF according to the Business Stream characteristic information of each business；The sending module 33 is specific For: the business continuance information of the PDN connection is sent to the MME by the SGW that services for the UE.

As the PGW that the network equipment is the UE service, the first acquisition module 31 is specifically used for: when described Have in PDN connection new business initiate or at the end of, obtain the Business Stream characteristic information of each business；According to each industry The Business Stream characteristic information of business determines the business continuance of each business, obtains the business continuance information of each business.

As the SGW that the network equipment is the UE service, the first acquisition module 31 is specifically used for: receiving PCRF The business continuance information of each business carried in the PDN connection sent, wherein each industry carried in the PDN connection The business continuance of business is determined by the PCRF according to the Business Stream characteristic information of each business.

As the SGW that the network equipment is the UE service, the first acquisition module 31 is specifically used for: receiving PCRF and sends The PDN connection on the business continuance information of each business that carries, wherein each business carried in the PDN connection Business continuance is determined by the PCRF according to the Business Stream characteristic information of each business；Described second, which obtains module 32, wraps It includes: carrying continuity determination unit, judging unit and the continuity determination unit of PDN connection.

Wherein, continuity determination unit is carried, for the business continuance according to each business carried in the PDN connection Information determines the continuity of each carrying in the PDN connection；Judging unit, for the company according to each carrying in the PDN connection Continuous property information judges whether each carrying requires to keep continuous in the PDN connection；The continuity determination unit of PDN connection is used In determining whether the PDN connection needs to keep continuous according to the judging result of the judging unit；If in the PDN connection Any one carrying need to keep continuous, then the continuity determination unit of the PDN connection determines the business of the PDN connection Continuity is to need to keep continuous；If all carryings all do not need to keep continuous in the PDN connection, the PDN connection Continuity determination unit determine that the business continuance of the PDN connection is not need to keep continuous.

In another implementation, judging unit, for determining that the PDN connects in the carrying continuity determination unit Any one carrying connected needs to keep consecutive hours, determines whether the PDN connection meets first operator's selection strategy； The continuity determination unit of PDN connection, for according to the judging result of the judging unit determine the PDN connection whether needs Keep continuous；If the PDN connection meets first operator selection strategy, the continuity of the PDN connection is determined Unit determines the business continuance of the PDN to need to keep continuous；If all carryings all do not need to protect in the PDN connection Any one carrying in the continuous or described PDN connection is held to need to keep continuous, but described in PDN connection is unsatisfactory for First operator's selection strategy, then the continuity determination unit of the PDN connection determines that the business continuance of the PDN is not It needs to keep continuous.

In the present embodiment, in order to reduce the expense of the network equipment, the sending module is specifically used for: determining that the PDN connects When the business continuance connect changes, Xiang Suoshu MME sends the business continuance information of the PDN connection.Alternatively, described PDN connection is just established, and specifically after preset duration, the business that Xiang Suoshu MME sends the PDN connection connects the sending module Continuous property information.To reduce the transmission of the business continuance information of the PDN connection.

Method provided in this embodiment can be used for executing the technical solution of embodiment of the method two, specific implementation and skill Art effect is similar, and which is not described herein again.

Figure 14 is the structural schematic diagram of mobile management entity embodiment three of the present invention, as shown in figure 14, the present embodiment provides MME400 include: processor 41, receiver 43.Receiver 43 is connected by bus with processor 41.It is provided in this embodiment MME can also include: memory 42, wherein memory 42 storage execute instruction, when MME400 operation when, processor 41 with deposit It is communicated between reservoir 42, processor 41 executes instruction so that MME400 executes the processing of business continuance provided by the invention Method.

Wherein, receiver 43, the business continuance letter of the packet data network PDN connection for obtaining user equipment (UE) Breath；

Processor 41, for when trigger condition meets, determined according to the business continuance information of the PDN connection described in Whether PDN connection needs to keep business continuity；The trigger condition is any one in the following conditions: mobile management event hair Raw, new business initiation, original service ending, the creation of the grouping system EPS carrying of evolution, the modification of EPS carrying and EPS is held The deletion of load.

If it is not, then the processor 41 is that the UE selects new packet data gateway PGW, and indicate the UE disconnect with for The connection of the former PGW of the UE service, and the instruction UE establish new PDN with the new PGW and connect；

If so, the processor 41 keeps the connection of the UE Yu the original PGW.

The receiver 43 is specifically used for: the business continuance information for the PDN connection that the network equipment is sent is received, In, the business continuance information of the PDN connection is by the network equipment according to each business carried in the PDN connection Continuity information determines.The network equipment is policy control Rulemaking entity PCRF, the original PGW, is the UE service Gateway S-GW in any one.

When the network equipment is the PCRF, and the agreement between original PGW and the S-GW is wireless universal When packet service technology tunnel label GTP agreement, the receiver 43 is specifically used for: receiving the PCRF and passes through the original PGW The business continuance information connected with the S-GW PDN sent.When the network equipment is the PCRF, and it is described When agreement between former PGW and the S-GW is the 6th edition PMIPv6 agreement of proxy mobile internet protocol, the receiver 43 It is specifically used for: receives the PCRF and pass through the business continuance information of the S-GW PDN connection sent.

When the network equipment is the original PGW, the receiver 43 is specifically used for: receiving the original PGW and passes through institute State the business continuance information of the PDN connection of SGW transmission.When the network equipment is the S-GW of the UE service, The receiver 43 is specifically used for: receiving the business continuance information for the PDN connection that the S-GW is sent.

In above-mentioned several ways, MME is the business continuance letter for receiving the PDN connection that other network equipments are sent Breath, certainly, MME oneself can also determine the business continuance information of the PDN connection, when MME oneself determines the PDN connection Business continuance information when, the receiver 43 is specifically used for: be received as UE service SGW or PGW send it is described The continuity information of each carrying in PDN connection.Then, receiver 43 is according to the continuity information of each carrying in the PDN connection Obtain the business continuance information of the PDN connection.

Receiver 43 obtains the business continuity of the PDN connection according to the continuity information of each carrying in the PDN connection Property information specifically: receiver 43 judges each in the PDN connection according to the continuity information of each carrying in the PDN connection Whether carrying requires to keep continuous；If any one carrying in the PDN connection needs to keep continuous, it is determined that described The business continuance of PDN is to need to keep continuous；If all carryings all do not need to keep continuous in the PDN connection, really The business continuance of the fixed PDN is not need to keep continuous.

Alternatively, continuity information of the receiver 43 according to each carrying in the PDN connection, judges the PDN connection Whether upper each carrying requires to keep continuous；If any one carrying in the PDN connection needs to keep continuous, into one Step, determines whether the PDN connection meets first operator's selection strategy；If the PDN connection meets first operation Quotient's selection strategy, then the MME determines the business continuance of the PDN to need to keep continuous；If institute in the PDN connection There is carrying all not need to keep any one carrying in the continuous or described PDN connection to need to keep continuous, but it is described PDN connection is unsatisfactory for first operator selection strategy, then the MME determines that the business continuance of the PDN is not need Keep continuous.

The processor 41 is specifically used for determining the need for selecting new PGW for UE in the following manner: processor 41 obtains Take the relevant information of the corresponding each PGW of affiliated access points APN of the original PDN connection, wherein the APN is corresponding The relevant information of each PGW include: the range information of each PGW and the UE, each PGW and the UE Delay, The load information of each PGW；According to the actual demand of the relevant information of the corresponding each PGW of the APN and the UE from described It is that the UE selects new PGW in each PGW.

Further, MME provided in this embodiment can also include transmitter 44, and transmitter 44 is used for domain name system Server DNS sends DNS query request, for inquiring the corresponding each PGW information of the APN；The receiver 43 is also used to: Receive the internet protocol address for each PGW that the DNS is sent；Correspondingly, the processor 41 is specifically used for: according to The IP address of the received each PGW of receiver determines each PGW at a distance from the UE.In this mode, MME Each PGW information is got from DNS, certainly, described in the processor 41 can also be inquired from pre-configured database The relevant information of the corresponding each PGW of access points APN belonging to former PDN connection.

In the present embodiment, processor 41 is when selecting new PGW for specific UE, it is also contemplated that operator's selection strategy, Specifically: processor 41 determines the need for selecting new PGW for the UE according to second operator's selection strategy.Second fortune Seek quotient's selection strategy are as follows: when the PDN of UE connection is in EPS Connection Management Idle state ECM-IDLE, select for the UE New PGW, alternatively, all not needing to select new PGW for the UE when the PDN connection of the UE is under any state, alternatively, working as institute The PDN connection for stating UE does not need to keep to select new PGW when business continuance for the UE.

MME provided in this embodiment can be used for executing the technical solution of embodiment of the method one, specific implementation and technology Effect is similar, and which is not described herein again.

Figure 15 is the structural schematic diagram of inventive network apparatus embodiments two, as shown in figure 15, net provided in this embodiment Network equipment 500 includes: processor 51, receiver 53 and transmitter 54.Wherein, receiver 53 and transmitter 54 pass through bus and place Device 51 is managed to be connected.The network equipment 500 provided in this embodiment can also include: memory 52, wherein the storage of memory 52 is held Row instruction communicates, processor 51, which executes instruction, to be made when the network equipment 500 is run between processor 51 and memory 52 Obtain the processing method that the network equipment 500 executes business continuance provided by the invention.

Receiver 53, for obtaining the business continuance information of each business carried in PDN connection；

Processor 51: the business continuity of each business carried in the PDN connection for being obtained according to the receiver The business continuance information of PDN connection described in property acquisition of information；

Transmitter 54, for sending the business continuance information of the PDN connection to mobile management entity MME.

In the present embodiment, processor 51 can obtain the business continuance information of the PDN connection by following two mode, First way, the processor 51 are specifically used for: being believed according to the business continuance of each business carried in the PDN connection Breath, judges whether each business requires to keep connection；If any one in each business carried in the PDN connection Business needs to keep continuous, it is determined that the business continuance of the PDN connection is to need to keep continuous；If the PDN connection All business of upper carrying all do not need to keep continuous, it is determined that the business continuance of the PDN connection is not need the company of holding It is continuous.

The second way, processor 51 are specifically used for: according to the business continuance of each business carried in the PDN connection Information, judges whether each business requires to keep continuous；If any one in each business carried in the PDN connection A business needs to keep continuous, determines whether the PDN connection meets first operator's selection strategy；If the PDN connection Meet first operator selection strategy, it is determined that the business continuance of the PDN is to need to keep continuous；If described All carryings all do not need to keep any one carrying in the continuous or described PDN connection to need the company of holding in PDN connection It is continuous, but PDN connection is unsatisfactory for first operator selection strategy, it is determined that the business continuance of the PDN is not It needs to keep continuous.

In the present embodiment, the network equipment can be PCRF, PGW and SGW.

When the network equipment is PCRF, the receiver 53 receives the business for each business that packet detection entity TDF is sent Flow characteristic information；The business continuance that each business is determined according to the Business Stream characteristic information of each business obtains described The business continuance information of each business.Wherein, the Business Stream characteristic information of each business includes: the five-tuple letter of the business The application layer message of breath or the business.Alternatively, Business Stream characteristic information of the receiver according to each business, and it is pre- The business continuance characteristic information for the various businesses type for first storing or obtaining from external data base determines each business Business continuance.In aforesaid way, PCRF oneself determines the business continuity of each business according to the Business Stream characteristic information of each business Property information, in mode in addition, packet detection entity TDF determines the business continuance information of each business, be then sent to PCRF, The receiver 53 of PCRF receives the business continuance information for each business that packet detection entity TDF is sent, wherein described The business continuance information of each business is that the TDF is determined according to the Business Stream characteristic information of each business.

When the network equipment be PCRF, and for the UE service packet data gateway PGW and gateway S-GW it Between agreement be packet radio service technology tunnel label GTP agreement；Transmitter 54 is specifically used for: by the PGW and described S-GW sends the business continuance information of the PDN connection to the MME.When the network equipment is policy control Rulemaking Entity PCRF, and the agreement between the PGW and the S-GW of UE service is proxy mobile internet protocol the 6th edition PMIPv6 agreement；The transmitter 54 is specifically used for: being connected by the S-GW to the business that the MME sends the PDN connection Continuous property information.

As the PGW that the network equipment is the UE service, the receiver 53 is specifically used for: receiving what PCRF was sent The business continuance information of each business carried in the PDN connection, wherein the industry of each business carried in the PDN connection Business continuity is determined by the PCRF according to the Business Stream characteristic information of each business；The transmitter is specifically used for: passing through The business continuance information of the PDN connection is sent to the MME for the SGW of UE service.Alternatively, receiver 53 is specifically used In: when there is new business to initiate in the PDN connection or at the end of, the PGW obtains the Business Stream feature of each business Information；The business continuance that each business is determined according to the Business Stream characteristic information of each business obtains each business Business continuance information.

As the SGW that the network equipment is the UE service, the receiver 53 is specifically used for: receiving what PCRF was sent The business continuance information of each business carried in the PDN connection, wherein the industry of each business carried in the PDN connection Business continuity is determined by the PCRF according to the Business Stream characteristic information of each business.Alternatively, receiver 53 receives PCRF hair The business continuance information of each business carried in the PDN connection sent, wherein each business carried in the PDN connection Business continuance determined by the PCRF according to the Business Stream characteristic information of each business；Correspondingly, the processor 51 It is specifically used for: each carrying in the PDN connection is determined according to the business continuance information of each business carried in the PDN connection Continuity；Judge whether each carrying requires in the PDN connection according to the continuity information of each carrying in the PDN connection Keep continuous；If any one carrying in the PDN connection needs to keep continuous, it is determined that the business of the PDN connection Continuity is to need to keep continuous；If all carryings all do not need to keep continuous in the PDN connection, it is determined that the PDN The business continuance of connection is not need to keep continuous.If processor 51 determines any one carrying in the PDN connection It needs to keep continuous, further, processor 51 determines whether the PDN connection meets first operator's selection strategy；If The PDN connection meets first operator selection strategy, it is determined that the business continuance of the PDN is to need the company of holding It is continuous；If all carryings all do not need to keep any one carrying in the continuous or described PDN connection in the PDN connection It needs to keep continuous, but PDN connection is unsatisfactory for first operator selection strategy, it is determined that the business of the PDN Continuity is not need to keep continuous.

The network money that the business continuance information of the PDN connection occupies frequently is sent to reduce the network equipment to MME Source when the transmitter 54 determines that the business continuance of the PDN connection changes, just sends the PDN to the MME and connects The business continuance information connect.Alternatively, when the PDN connection is just established, the transmitter 54 after preset duration, to The MME sends the business continuance information of the PDN connection.

The network equipment provided in this embodiment can be used for executing the technical solution of embodiment of the method two, specific implementation Similar with technical effect, which is not described herein again.

Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light The various media that can store program code such as disk.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims

1. a kind of processing method of business continuance characterized by comprising

When trigger condition meets, the MME determines that the PDN connection is according to the business continuance information of the PDN connection It is no to need to keep business continuity；

If it is not, then the MME is that the UE selects new packet data gateway PGW, and indicates that the UE is disconnected and take with for the UE The connection of the former PGW of business, and the instruction UE establish new PDN with the new PGW and connect；

If so, the MME keeps the connection of the UE Yu the original PGW.

2. the method according to claim 1, wherein the mobility management entity MME obtains user equipment (UE) Packet data network PDN connection business continuance information, comprising:

The MME receives the business continuance information for the PDN connection that the network equipment is sent, wherein the industry of the PDN connection Business continuity information is determined by the network equipment according to the continuity information of each business carried in the PDN connection.

3. according to the method described in claim 2, it is characterized in that, the network equipment is policy control Rulemaking entity PCRF, the original PGW, for the UE service gateway S-GW in any one.

4. according to the method described in claim 3, it is characterized in that, when the network equipment is the PCRF, and the original When agreement between PGW and the S-GW is general packet radio service technology tunnel label GTP agreement, the MME receives net The business continuance information for the PDN connection that network equipment is sent, comprising:

The MME receives the business continuance letter that the PCRF is connected by the original PGW with the PDN that the S-GW is sent Breath.

5. according to the method described in claim 3, it is characterized in that, when the network equipment is the PCRF, and the original When agreement between PGW and the S-GW is the 6th edition PMIPv6 agreement of proxy mobile internet protocol, the MME receives network The business continuance information for the PDN connection that equipment is sent, comprising:

6. according to the method described in claim 3, it is characterized in that, when the network equipment be the original PGW when, the MME Receive the business continuance information for the PDN connection that the network equipment is sent, comprising:

7. according to the method described in claim 3, it is characterized in that, as the S-GW that the network equipment is the UE service When, the MME obtains the business continuance information of the packet data network PDN connection of user equipment (UE), comprising:

8. the method according to claim 1, wherein the mobility management entity MME obtains user equipment (UE) Packet data network PDN connection business continuance information, comprising:

The MME obtains the continuity information of each carrying in the PDN connection, according in the PDN connection each carrying it is continuous The business continuance information of PDN connection described in property acquisition of information.

9. according to the method described in claim 8, it is characterized in that, the MME obtains the continuous of each carrying in the PDN connection Property information, the business continuance information of the PDN connection is obtained according to the continuity information of each carrying in the PDN connection, wrap It includes:

The MME obtains the continuity information of each carrying in the PDN connection, according in the PDN connection each carrying it is continuous Property information, judge whether each carrying requires to keep continuous in the PDN connection；

If any one carrying in the PDN connection needs to keep continuous, the MME determines that the business of the PDN connects Continuous property is to need to keep continuous；

If all carryings all do not need to keep continuous in the PDN connection, the MME determines the business continuity of the PDN Property not need to keep be continuous.

10. according to the method described in claim 8, it is characterized in that, the MME obtains the company of each carrying in the PDN connection Continuous property information, the business continuance information of the PDN connection is obtained according to the continuity information of each carrying in the PDN connection, Include:

If any one carrying in the PDN connection needs to keep continuous, the MME determines whether the PDN connection is full First operator's selection strategy of foot；

If the PDN connection meets first operator selection strategy, the MME determines the business continuity of the PDN Property to need to keep continuous；

If all carryings all do not need to keep any one carrying in the continuous or described PDN connection in the PDN connection It needs to keep continuous, but PDN connection is unsatisfactory for first operator selection strategy, then the MME determines the PDN Business continuance be not need to keep continuous.

11. the method according to any one of claim 8-10, which is characterized in that the MME is obtained in the PDN connection The continuity information respectively carried, comprising:

The continuity information of each carrying in the PDN connection that the SGW or PGW that the MME is received as the UE service are sent.

12. -11 described in any item methods according to claim 1, which is characterized in that the trigger condition is to appoint in the following conditions Meaning one: generations of mobile management event, new business initiation, original service ending, evolution grouping system EPS carry wound It builds, the deletion of the modification of EPS carrying and EPS carrying.

13. -11 described in any item methods according to claim 1, which is characterized in that the MME is the new grouping of UE selection Data gateway PGW, comprising:

The MME obtains the relevant information of the corresponding each PGW of affiliated access points APN of the original PDN connection, wherein The relevant information of the corresponding each PGW of the APN include: the range information of each PGW and UE, each PGW with it is described The load information of the Delay of UE, each PGW；

The MME is from each PGW according to the relevant information of the corresponding each PGW of the APN and the actual demand of the UE The UE selects new PGW.

14. according to the method for claim 13, which is characterized in that the MME obtains access belonging to the original PDN connection The range information of access point APN corresponding each PGW and the UE, comprising:

The MME sends DNS query request to domain name system server DNS, for inquiring the corresponding each PGW information of the APN；

The MME receives the internet protocol address for each PGW that the DNS is sent, and the MME is according to each PGW IP address determine each PGW at a distance from the UE.

15. according to the method for claim 13, which is characterized in that the MME obtains access belonging to the original PDN connection The relevant information of the corresponding each PGW of access point APN, comprising:

It is corresponding each that the MME inquires access points APN belonging to the original PDN connection from pre-configured database The relevant information of PGW.

16. the method according to claim 1, wherein the MME is that the UE selects new packet data gateway PGW, comprising:

17. according to the method for claim 16, which is characterized in that second operator selection strategy are as follows: as the UE PDN connection when being in EPS Connection Management Idle state ECM-IDLE, new PGW is selected for the UE, alternatively, working as the PDN of the UE Connection does not all need to select new PGW for the UE under any state, alternatively, the PDN connection as the UE does not need to keep New PGW is selected when business continuance for the UE.

18. a kind of processing method of business continuance characterized by comprising

Network equipment PDN connection according to the business continuance acquisition of information of each business carried in the PDN connection Business continuance information；

19. according to the method for claim 18, which is characterized in that the network equipment is carried according in the PDN connection Each business business continuance acquisition of information described in PDN connection business continuance information, comprising:

The network equipment judges each business according to the business continuance information of each business carried in the PDN connection Whether require to keep connection；

If any one business in each business carried in the PDN connection needs to keep continuous, the network equipment The business continuance of the PDN connection is determined to need to keep continuous；

If all business carried in the PDN connection all do not need to keep continuous, the network equipment determines the PDN The business continuance of connection is not need to keep continuous.

20. according to method described in claim requirement 18, which is characterized in that the network equipment is according in the PDN connection The business continuance information of PDN connection described in the business continuance acquisition of information of each business of carrying, comprising:

The network equipment judges each business according to the business continuance information of each business carried in the PDN connection Whether require to keep continuous；

If any one business in each business carried in the PDN connection needs to keep continuous, the network equipment is true Whether the fixed PDN connection meets first operator's selection strategy；

If the PDN connection meets first operator selection strategy, the network equipment determines the business of the PDN Continuity is to need to keep continuous；

If all carryings all do not need to keep any one carrying in the continuous or described PDN connection in the PDN connection It needs to keep continuous, but PDN connection is unsatisfactory for first operator selection strategy, then the network equipment determines institute The business continuance for stating PDN is not need to keep continuous.

21. method described in any one of 8-20 according to claim 1, which is characterized in that the network equipment is policy control Rulemaking entity PCRF, the network equipment obtain the business continuance information of each business carried in PDN connection, comprising:

The PCRF determines the business continuance of each business according to the Business Stream characteristic information of each business, obtains described The business continuance information of each business.

22. according to the method for claim 21, which is characterized in that the Business Stream characteristic information of each business includes: institute State the five-tuple information of business or the application layer message of the business.

23. the method according to claim 21 or 22, which is characterized in that the PCRF is according to the Business Stream of each business Characteristic information determines the business continuance of each business, comprising:

The PCRF is according to the Business Stream characteristic information of each business, and is stored in advance or obtains from external data base The business continuance characteristic information of various businesses type determines the business continuance of each business.

24. the described in any item methods of 8-20 according to claim 1, which is characterized in that the network equipment is policy control rule Entity PCRF is then formulated, the network equipment obtains the business continuance information of each business carried in PDN connection, comprising:

The PCRF receives the business continuance information for each business that packet detection entity TDF is sent, wherein each business Business continuance information be the TDF according to the Business Stream characteristic information of each business determine.

25. the described in any item methods of 8-24 according to claim 1, which is characterized in that the network equipment is policy control rule Entity PCRF is then formulated, and the agreement between the packet data gateway PGW and gateway S-GW of UE service is wireless Packet service technology tunnel label GTP agreement；

The PCRF sends the business continuance information that the PDN is connected to the MME with the S-GW by the PGW.

26. the described in any item methods of 8-24 according to claim 1, which is characterized in that the network equipment is policy control rule Entity PCRF is then formulated, and the agreement between the PGW and the S-GW of UE service is proxy mobile internet protocol the 6th Version PMIPv6 agreement；

27. the described in any item methods of 8-20 according to claim 1, which is characterized in that the network equipment is the UE clothes The PGW of business, the network equipment obtain the business continuance information of each business carried in PDN connection, comprising:

The PGW receives the business continuance information of each business carried in the PDN connection that PCRF is sent, wherein described The business continuance of each business carried in PDN connection is true according to the Business Stream characteristic information of each business by the PCRF It is fixed；

28. the described in any item methods of 8-20 according to claim 1, which is characterized in that the network equipment is the UE clothes The PGW of business, the network equipment obtain the business continuance information of each business carried in PDN connection, comprising:

When there is new business to initiate in the PDN connection or at the end of, the PGW obtains the Business Stream feature of each business Information；

The PGW determines the business continuance of each business according to the Business Stream characteristic information of each business, obtains described The business continuance information of each business.

29. the described in any item methods of 8-20 according to claim 1, which is characterized in that the network equipment is the UE clothes The SGW of business, the network equipment obtain the business continuance information of each business carried in PDN connection, comprising:

The SGW receives the business continuance information of each business carried in the PDN connection that PCRF is sent, wherein described The business continuance of each business carried in PDN connection is true according to the Business Stream characteristic information of each business by the PCRF It is fixed.

30. according to the method for claim 18, which is characterized in that the network equipment is the SGW of the UE service, institute State the business continuance information that the network equipment obtains each business carried in PDN connection, comprising:

The SGW receives the business continuance information of each business carried in the PDN connection that PCRF is sent, wherein described The business continuance of each business carried in PDN connection is true according to the Business Stream characteristic information of each business by the PCRF It is fixed；

Network equipment PDN connection according to the business continuance acquisition of information of each business carried in the PDN connection Business continuance information, comprising:

The SGW is determined according to the business continuance information of each business carried in the PDN connection and is respectively held in the PDN connection The continuity of load；

Whether the SGW judges each carrying need in the PDN connection according to the continuity information of each carrying in the PDN connection Keep continuous；

If any one carrying in the PDN connection needs to keep continuous, the SGW determines the industry of the PDN connection Continuity of being engaged in is to need to keep continuous；

If all carryings all do not need to keep continuous in the PDN connection, the SGW determines the business of the PDN connection Continuity is not need to keep continuous.

31. according to the method for claim 18, which is characterized in that the network equipment is the SGW of the UE service, institute State the business continuance information that the network equipment obtains each business carried in PDN connection, comprising:

SGW receives the business continuance information of each business carried in the PDN connection that PCRF is sent, wherein the PDN connects The business continuance for connecting each business of carrying is determined by the PCRF according to the Business Stream characteristic information of each business；

If any one carrying in the PDN connection needs to keep continuous, the SGW determines whether the PDN connection is full First operator's selection strategy of foot；

If the PDN connection meets first operator selection strategy, the SGW determines the business continuity of the PDN Property to need to keep continuous；

If all carryings all do not need to keep any one carrying in the continuous or described PDN connection in the PDN connection It needs to keep continuous, but PDN connection is unsatisfactory for first operator selection strategy, then the SGW determines the PDN Business continuance be not need to keep continuous.

32. according to the method for claim 18, which is characterized in that the network equipment is sent to mobile management entity MME The business continuance information of the PDN connection, comprising:

The network equipment determines that the business continuance of the PDN connection changes, and the network equipment is sent to the MME The business continuance information of the PDN connection.

33. according to the method for claim 18, which is characterized in that if PDN connection is just established, the network equipment The business continuance information of the PDN connection is sent to mobile management entity MME, comprising:

34. a kind of mobile management entity MME characterized by comprising

Obtain module, the business continuance information of the packet data network PDN connection for obtaining user equipment (UE)；

Determining module, for determining the PDN according to the business continuance information of the PDN connection when trigger condition meets Whether connection needs to keep business continuity；

Gateway selecting module is to select new Packet Data Network when being for the UE for the judging result in the determining module PGW is closed, and indicates that the UE disconnects the connection with the former PGW for UE service, and the instruction UE and new PGW is built Stand new PDN connection；

Connection keep module, for the judging result in the determining module be it is no when, keep the company of the UE Yu the original PGW It connects.

35. MME according to claim 34, which is characterized in that the acquisition module is specifically used for: receiving network equipment hair The business continuance information for the PDN connection sent, wherein the business continuance information of the PDN connection is set by the network It is standby to be determined according to the continuity information of each business carried in the PDN connection.

36. MME according to claim 35, which is characterized in that the network equipment is policy control Rulemaking entity PCRF, the original PGW, for the UE service gateway S-GW in any one.

37. MME according to claim 36, which is characterized in that when the network equipment is the PCRF, and the original When agreement between PGW and the S-GW is general packet radio service technology tunnel label GTP agreement, the acquisition module tool Body is used for:

38. MME according to claim 36, which is characterized in that when the network equipment is the PCRF, and the original When agreement between PGW and the S-GW is the 6th edition PMIPv6 agreement of proxy mobile internet protocol, the acquisition module is specific For:

39. MME according to claim 36, which is characterized in that described to obtain when the network equipment is the original PGW Modulus block is specifically used for:

40. MME according to claim 36, which is characterized in that as the S-GW that the network equipment is the UE service When, the acquisition module is specifically used for:

41. MME according to claim 34, which is characterized in that the determining module is specifically used for:

The continuity information for obtaining each carrying in the PDN connection is obtained according to the continuity information of each carrying in the PDN connection Take the business continuance information of the PDN connection.

42. MME according to claim 41, which is characterized in that the determining module is specifically used for:

The continuity information for obtaining each carrying in the PDN connection, according to the continuity information of each carrying in the PDN connection, Judge whether each carrying requires to keep continuous in the PDN connection；

If any one carrying in the PDN connection needs to keep continuous, it is determined that the business continuance of the PDN is to need Keep continuous；

If all carryings all do not need to keep continuous in the PDN connection, it is determined that the business continuance of the PDN is to be not required to Keep continuous.

43. MME according to claim 41, which is characterized in that the determining module is specifically used for:

If any one carrying in the PDN connection needs to keep continuous, determine whether the PDN connection meets the first fortune Seek quotient's selection strategy；

If the PDN connection meets first operator selection strategy, it is determined that the business continuance of the PDN is to need Keep continuous；

If all carryings all do not need to keep any one carrying in the continuous or described PDN connection in the PDN connection It needs to keep continuous, but PDN connection is unsatisfactory for first operator selection strategy, it is determined that the business of the PDN Continuity is not need to keep continuous.

44. the MME according to any one of claim 41-43, which is characterized in that the determining module is specifically used for:

45. the MME according to any one of claim 34-44, which is characterized in that the trigger condition is in the following conditions Any one: the generation of mobile management event, new business initiation, original service ending, evolution grouping system EPS carrying The deletion that creation, the modification of EPS carrying and EPS are carried.

46. the MME according to any one of claim 34-44, which is characterized in that the gateway selecting module includes:

Acquiring unit, the relevant information of the corresponding each PGW of affiliated access points APN for obtaining the original PDN connection, Wherein, the relevant information of the corresponding each PGW of the APN include: the range information of each PGW and the UE, each PGW with The load information of the Delay of the UE, each PGW；

Determination unit, for according to the actual demand of the relevant information of the corresponding each PGW of the APN and the UE from described each It is that the UE selects new PGW in PGW.

47. MME according to claim 46, which is characterized in that the acquiring unit is specifically used for:

The internet protocol address for receiving each PGW that the DNS is sent, determines institute according to the IP address of each PGW Each PGW is stated at a distance from the UE.

48. MME according to claim 46, which is characterized in that the acquiring unit is specifically used for:

The phase of the corresponding each PGW of access points APN belonging to the original PDN connection is inquired from pre-configured database Close information.

49. MME according to claim 34, which is characterized in that the gateway selecting module is specifically used for:

50. MME according to claim 49, which is characterized in that second operator selection strategy are as follows: when the UE's When PDN connection is in EPS Connection Management Idle state ECM-IDLE state, new PGW is selected for the UE, alternatively, when the UE's PDN connection, which is under any state, all not to be needed to select new PGW for the UE, alternatively, the PDN connection as the UE does not need to protect New PGW is selected when holding business continuance for the UE.

51. a kind of network equipment characterized by comprising

Second obtains module, for the PDN according to the business continuance acquisition of information of each business carried in the PDN connection The business continuance information of connection；

52. the network equipment according to claim 51, which is characterized in that the second acquisition module is specifically used for:

According to the business continuance information of each business carried in the PDN connection, judge whether each business requires to protect Hold connection；

If any one business in each business carried in the PDN connection needs to keep continuous, it is determined that the PDN connects The business continuance connect is to need to keep continuous；

If all business carried in the PDN connection all do not need to keep continuous, it is determined that the business of the PDN connection connects Continuous property is not need to keep continuous.

53. the network equipment according to claim 51, which is characterized in that the second acquisition module is specifically used for:

According to the business continuance information of each business carried in the PDN connection, judge whether each business requires to protect It holds continuous；

If any one business in each business carried in the PDN connection needs to keep continuous, the PDN connection is determined Whether first operator selection strategy is met；

54. the network equipment according to any one of claim 51-53, which is characterized in that the network equipment is strategy Rulemaking entity PCRF is controlled, the first acquisition module includes:

Determination unit is obtained for determining the business continuance of each business according to the Business Stream characteristic information of each business To the business continuance information of each business.

55. the network equipment according to claim 54, which is characterized in that the Business Stream characteristic information packet of each business It includes: the five-tuple information of the business or the application layer message of the business.

56. the network equipment according to claim 54 or 55, which is characterized in that the determination unit is specifically used for:

According to the Business Stream characteristic information of each business, and the various businesses for being stored in advance or being obtained from external data base The business continuance characteristic information of type determines the business continuance of each business.

57. the network equipment according to any one of claim 51-53, which is characterized in that the network equipment is strategy Rulemaking entity PCRF is controlled, the first acquisition module is specifically used for:

Receive the business continuance information for each business that packet detection entity TDF is sent, wherein the business of each business connects Continuous property information is that the TDF is determined according to the Business Stream characteristic information of each business.

58. the network equipment according to any one of claim 51-57, which is characterized in that the network equipment is strategy Control Rulemaking entity PCRF, and the agreement between the packet data gateway PGW and gateway S-GW of UE service For packet radio service technology tunnel label GTP agreement；

The sending module is specifically used for: sending the business that the PDN is connected to the MME with the S-GW by the PGW Continuity information.

59. the network equipment according to any one of claim 51-57, which is characterized in that the network equipment is strategy Rulemaking entity PCRF is controlled, and the agreement between the PGW and the S-GW of UE service is proxy mobile internet The 6th edition PMIPv6 agreement of agreement；

The sending module is specifically used for: being believed by the S-GW to the business continuance that the MME sends the PDN connection Breath.

60. the network equipment according to any one of claim 51-53, which is characterized in that the network equipment is for institute The PGW of UE service is stated, the second acquisition module is specifically used for:

Receive the business continuance information of each business carried in the PDN connection that PCRF is sent, wherein the PDN connection The business continuance of each business of upper carrying is determined by the PCRF according to the Business Stream characteristic information of each business；

The sending module is specifically used for: sending the business of the PDN connection to the MME by the SGW that services for the UE Continuity information.

61. the network equipment according to any one of claim 51-53, which is characterized in that the network equipment is for institute The PGW of UE service is stated, the first acquisition module is specifically used for:

When there is new business to initiate in the PDN connection or at the end of, obtain the Business Stream characteristic information of each business；

The business continuance that each business is determined according to the Business Stream characteristic information of each business obtains each business Business continuance information.

62. the network equipment according to any one of claim 51-53, which is characterized in that the network equipment is for institute The SGW of UE service is stated, the first acquisition module is specifically used for:

Receive the business continuance information of each business carried in the PDN connection that PCRF is sent, wherein the PDN connection The business continuance of each business of upper carrying is determined by the PCRF according to the Business Stream characteristic information of each business.

63. the network equipment according to claim 51, which is characterized in that the network equipment is what the UE was serviced SGW, the first acquisition module are specifically used for:

Described second, which obtains module, includes:

Continuity determination unit is carried, for determining according to the business continuance information of each business carried in the PDN connection The continuity of each carrying in the PDN connection；

Judging unit, for judging that each carrying is in the PDN connection according to the continuity information of each carrying in the PDN connection It is no to require to keep continuous；

The continuity determination unit of PDN connection, for whether determining the PDN connection according to the judging result of the judging unit It needs to keep continuous；

If any one carrying in the PDN connection needs to keep continuous, the continuity determination unit of the PDN connection The business continuance of the PDN connection is determined to need to keep continuous；

If all carryings all do not need to keep continuous in the PDN connection, the continuity determination unit of the PDN connection is true The business continuance of the fixed PDN connection is not need to keep continuous.

64. the network equipment according to claim 51, which is characterized in that the network equipment is what the UE was serviced SGW, the first acquisition module are specifically used for:

Described second, which obtains module, includes:

Judging unit, for determining any one carrying needs in the PDN connection in the carrying continuity determination unit Consecutive hours is kept, determines whether the PDN connection meets first operator's selection strategy；

If the PDN connection meets first operator selection strategy, the continuity determination unit of the PDN connection is true The business continuance of the fixed PDN is to need to keep continuous；

If all carryings all do not need to keep any one carrying in the continuous or described PDN connection in the PDN connection It needs to keep continuous, but PDN connection is unsatisfactory for first operator selection strategy, then the PDN connection is continuous Property determination unit determine that the business continuance of the PDN is not need to keep continuous.

65. the network equipment according to claim 51, which is characterized in that the sending module is specifically used for:

When determining that the business continuance of the PDN connection changes, Xiang Suoshu MME sends the business continuity of the PDN connection Property information.

66. the network equipment according to claim 51, which is characterized in that if PDN connection is just established, the transmission Module is specifically used for:

67. a kind of mobility management entity MME characterized by comprising

Processor, for determining that the PDN connects according to the business continuance information of the PDN connection when trigger condition meets It connects and whether needs to keep business continuity；

If it is not, then the processor is that the UE selects new packet data gateway PGW, and indicate the UE disconnect with for the UE The connection of the former PGW of service, and the instruction UE establish new PDN with the new PGW and connect；

If so, the processor keeps the connection of the UE Yu the original PGW.

68. MME according to claim 67, which is characterized in that the receiver is specifically used for:

Receive the business continuance information for the PDN connection that the network equipment is sent, wherein the business continuity of the PDN connection Property information is determined by the network equipment according to the continuity information of each business carried in the PDN connection.

69. MME according to claim 68, which is characterized in that the network equipment is policy control Rulemaking entity PCRF, the original PGW, for the UE service gateway S-GW in any one.

70. MME according to claim 69, which is characterized in that when the network equipment is the PCRF, and the original When agreement between PGW and the S-GW is general packet radio service technology tunnel label GTP agreement, the reception implement body For:

71. MME according to claim 69, which is characterized in that when the network equipment is the PCRF, and the original When agreement between PGW and the S-GW is the 6th edition PMIPv6 agreement of proxy mobile internet protocol, the reception implement body is used In:

72. MME according to claim 69, which is characterized in that described to connect when the network equipment is the original PGW Implement body is received to be used for:

73. MME according to claim 69, which is characterized in that as the S-GW that the network equipment is the UE service When, the receiver is specifically used for:

74. MME according to claim 67, which is characterized in that the receiver is specifically used for:

75. MME according to claim 74, which is characterized in that the receiver is specifically used for:

76. MME according to claim 74, which is characterized in that the receiver is specifically used for:

77. the MME according to any one of claim 74-76, which is characterized in that the receiver is specifically used for:

78. the MME according to any one of claim 67-77, which is characterized in that the trigger condition is in the following conditions Any one: the generation of mobile management event, new business initiation, original service ending, evolution grouping system EPS carrying The deletion that creation, the modification of EPS carrying and EPS are carried.

79. the MME according to any one of claim 67-77, which is characterized in that the processor is specifically used for:

Obtain the relevant information of the corresponding each PGW of affiliated access points APN of the original PDN connection, wherein the APN The relevant information of corresponding each PGW includes: the time delay of the range information of each PGW and the UE, each PGW and the UE The load information of information, each PGW；

It is the UE choosing from each PGW according to the actual demand of the relevant information of the corresponding each PGW of the APN and the UE Select new PGW.

80. the MME according to claim 79, which is characterized in that further include:

Transmitter, for sending DNS query request to domain name system server DNS, for inquiring the corresponding each PGW of the APN Information；

The receiver is also used to: receiving the internet protocol address for each PGW that the DNS is sent；

The processor is specifically used for: determining each PGW and institute according to the IP address of the received each PGW of the receiver State the distance of UE.

81. the MME according to claim 79, which is characterized in that the processor is specifically used for:

82. MME according to claim 67, which is characterized in that the processor is specifically used for:

83. the MME according to claim 82, which is characterized in that second operator selection strategy are as follows: when the UE's When PDN connection is in EPS Connection Management Idle state ECM-IDLE, new PGW is selected for the UE, alternatively, the PDN as the UE connects It connects and does not all need to select new PGW for the UE under any state, alternatively, when the PDN connection of the UE does not need to keep industry New PGW is selected when continuity of being engaged in for the UE.

84. a kind of network equipment characterized by comprising

Processor: the business continuance information of each business carried in the PDN connection for being obtained according to the receiver Obtain the business continuance information of the PDN connection；

85. the network equipment according to claim 84, which is characterized in that the processor is specifically used for:

86. the network equipment according to claim 84, which is characterized in that the processor is specifically used for:

87. the network equipment according to any one of claim 84-86, which is characterized in that the network equipment is strategy Rulemaking entity PCRF is controlled, the receiver is specifically used for:

88. the network equipment according to claim 87, which is characterized in that the Business Stream characteristic information packet of each business It includes: the five-tuple information of the business or the application layer message of the business.

89. the network equipment according to claim 87 or 88, which is characterized in that the receiver is specifically used for:

90. the network equipment according to any one of claim 84-86, which is characterized in that the network equipment is strategy Rulemaking entity PCRF is controlled, the receiver is specifically used for:

91. the network equipment according to any one of claim 84-86, which is characterized in that the network equipment is strategy Control Rulemaking entity PCRF, and the agreement between the packet data gateway PGW and gateway S-GW of UE service For packet radio service technology tunnel label GTP agreement；

The transmitter is specifically used for: sending the business that the PDN is connected to the MME with the S-GW by the PGW and connects Continuous property information.

92. the network equipment according to any one of claim 84-86, which is characterized in that the network equipment is strategy Rulemaking entity PCRF is controlled, and the agreement between the PGW and the S-GW of UE service is proxy mobile internet The 6th edition PMIPv6 agreement of agreement；

The transmitter is specifically used for: sending the business continuance information of the PDN connection to the MME by the S-GW.

93. the network equipment according to any one of claim 84-86, which is characterized in that the network equipment is for institute The PGW of UE service is stated, the receiver is specifically used for:

The transmitter is specifically used for: being connected by the SGW serviced for the UE to the business that the MME sends the PDN connection Continuous property information.

94. the network equipment according to any one of claim 84-86, which is characterized in that the network equipment is for institute The PGW of UE service is stated, the receiver is specifically used for:

95. the network equipment according to any one of claim 84-86, which is characterized in that the network equipment is for institute The SGW of UE service is stated, the receiver is specifically used for: receiving the industry of each business carried in the PDN connection that PCRF is sent Business continuity information, wherein the business continuance of each business carried in the PDN connection is by the PCRF according to each industry The Business Stream characteristic information of business determines.

96. the network equipment according to claim 84, which is characterized in that the network equipment is what the UE was serviced SGW, the receiver are specifically used for:

The processor is specifically used for: according to the determination of the business continuance information of each business carried in the PDN connection The continuity of each carrying in PDN connection；

Judge whether each carrying requires to keep in the PDN connection according to the continuity information of each carrying in the PDN connection Continuously；

If any one carrying in the PDN connection needs to keep continuous, it is determined that the business continuance of the PDN connection To need to keep continuous；

If all carryings all do not need to keep continuous in the PDN connection, it is determined that the business continuance of the PDN connection is It does not need to keep continuous.

97. the network equipment according to claim 84, which is characterized in that the network equipment is what the UE was serviced SGW, the receiver are specifically used for:

98. the network equipment according to claim 84, which is characterized in that the transmitter is specifically used for:

99. the network equipment according to claim 84, which is characterized in that if PDN connection is just established, the transmitting Implement body is used for: