CN102056145B - Method and system for releasing tunnel connection in communication system supporting local IP access - Google Patents
Method and system for releasing tunnel connection in communication system supporting local IP access Download PDFInfo
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- CN102056145B CN102056145B CN200910209138.1A CN200910209138A CN102056145B CN 102056145 B CN102056145 B CN 102056145B CN 200910209138 A CN200910209138 A CN 200910209138A CN 102056145 B CN102056145 B CN 102056145B
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Abstract
The invention discloses a method for releasing tunnel connection in a communication system supporting local IP access, comprising the following steps: in a service request or tracking area updating process, a mobility management entity (MME) sends a release message of local IP access connection to a core network service gateway, and the core network service gateway releases the message of local IP access connection based on the release message. The invention also discloses a system for realizing the method. When a user terminal has services or the tracking area needs to be updated, the direct tunnel of LIPA (local IP access) is reconstructed, at the moment, the MME sends the release message for releasing the LIPA connection message to the core network service gateway, and the core network service gateway releases the LIPA connection message, thus ensuring timely release of invalid messages on the core network service gateway, and ensuring the efficiency of the core network service gateway for processing network side data.
Description
Technical field
The present invention relates to discharge when user terminal local IP access adopts direct tunnel style the technology in indirect tunnel, relate in particular to method for releasing and system that in a kind of communication system of supporting local IP access, tunnel connects.
Background technology
Third generation partner program (3GPP, 3rd Generation Partnership Project) grouping system (EPS of evolution, Evolved Packet System) by the universal mobile telecommunications system land radio access web (E-UTRAN of evolution, Evolved Universal Terrestrial Radio Access Network), mobile management unit (MME, Mobility Management Entity), gateway (S-GW, ServingGateway), grouped data network gateway (P-GW or PDN GW, Packet Data NetworkGateway), home subscriber server (HSS, Home Subscriber Server), authentication and authorization charging (the AAA of 3GPP, Authentication, Authorization and Accounting) server, "Policy and Charging Rules Function (PCRF, Policy and Charging Rules Function) entity and other support nodes form.Fig. 1 a is the schematic diagram of mobile communications network connected mode one in prior art, as shown in Figure 1a, shown Mobility Management Entity is responsible for the related work of the chains of command such as the processing of mobile management, Non-Access Stratum signaling and the contextual management of user's mobile management; S-GW is the accessing gateway equipment being connected with E-UTRAN, forwarding data between E-UTRAN and P-GW, and be responsible for the pending datas such as paging to carry out buffer memory; P-GW is the borde gateway of EPS and packet data network (PDN, Packet Data Network) network, is responsible for the access of PDN and the function such as forwarding data between EPS and PDN; S-GW and P-GW belong to core net gateway.
Base station from home is a kind of small-sized, lower powered base station, be deployed in the indoor places such as family and office, Main Function is for higher service rate being provided to user and reducing and use the needed expense of high rate services, makes up the deficiency that existing distributed cellular radio communication system covers simultaneously.The advantage of base station from home is economical, convenient, low-power output, plug and play etc.In home base station system, base station from home is wireless side network element.Base station from home can be directly connected to core network, as shown in Figure 1a, also can be linked into core network by this logical ne of home base-station gateway.Fig. 1 b is the schematic diagram of mobile communications network connected mode two in prior art, as shown in Figure 1 b, the network architecture shown in the network architecture shown in it and Fig. 1 a is basic identical, home base-station gateway major function is wherein: the fail safe of checking base station from home, process the registration of base station from home, base station from home is carried out to operation maintenance management, according to Carrier Requirements configuration and control base station from home, be responsible for the data of exchcange core net and base station from home.
Except supporting the access of mobile core network, mobile communication system (comprising home base station system) also can be supported local IP access (LIPA, Local IP Access) function, can realize this locality access of user terminal to other IP devices of home network or other IP devices of enterprise network or internet.
In order to realize local IP access function, set up local gateway, Fig. 2 is the schematic diagram of mobile communications network connected mode three in prior art, Fig. 3 a is the schematic diagram of mobile communications network connected mode four in prior art, Fig. 3 b is the schematic diagram of mobile communications network connected mode five in prior art, Fig. 4 is the schematic diagram of mobile communications network connected mode six in prior art, as shown in Fig. 2, Fig. 3 a, Fig. 3 b, Fig. 4, setting up that local access network closes can provide providing powerful support for local IP access technology.As shown in Figure 2, local gateway can and wireless side network element close and establish or near wireless side network element (external), as shown in Fig. 3 a, Fig. 3 b, Fig. 4, when existing in the situation of home base-station gateway, local gateway not only can close and establish or near base station from home (external) with base station from home, also can and home base-station gateway close and establish or near home base-station gateway (external).Local gateway can be local SGW (L-SGW, Local SGW), local L-PGW (L-PGW, Local PGW), virtual SGW (V-SGW, Virtual SGW), virtual PGW (V-PGW, Virtual PSGW), L-GGSN (local GGSN, Local GGSN), external L-GW.
With Long Term Evolution (LTE, Long Term Evolution) mobile communications network framework is example, connection for local IP access, in order to realize the quick transmission of data, at user terminal, can to it, adopt the mode in direct tunnel during in connected state, now, local IP connects tunnel and closes from user terminal to wireless side network element/home base-station gateway to local access network, transfer of data is without core net, and efficiency is higher; When user terminal is during in Idle state, for not data cached at local gateway, local IP is connected to tunnel and be switched to core net, now, local IP connects tunnel and from user terminal to wireless side network element/home base-station gateway to core net S-GW to local access network, closes (this tunnel is referred to as indirect tunnel this patent), the downlink data that wherein core net S-GW can buffer memory Idle state user terminal.When user terminal is positioned at connected state, can transmit data from direct tunnel, and user terminal enters after Idle state, data can be transmitted from indirect tunnel.This mode is referred to as direct tunnel style, and while adopting this mode to realize local IP access, local gateway is L-PGW, L-GW or L-GGSN.
Local IP connects when direct tunnel is set up and can adopt in two ways: mode one, and Mobility Management Entity is initiated bearing tunnel while setting up, and by core net S-GW, the tunnel of local gateway and wireless side network element/home base-station gateway is coupled together; Mode two, directly has Mobility Management Entity to set up the tunnel of local gateway and wireless side network element/home base-station gateway, does not need core net S-GW to participate in.In mode one, between core net S-GW and local gateway, need to exist interface, in mode two, between Mobility Management Entity and local gateway, need to exist interface.Directly the Organization Chart of tunnel style is as shown in Fig. 2, Fig. 3 a, Fig. 3 b and Fig. 4.When below local gateway is positioned at home base-station gateway when (close with wireless side network element position), message between local gateway and Mobility Management Entity or core net S-GW can be passed through home base-station gateway (as Fig. 3 b), also can without home base-station gateway (as Fig. 3 a).Fig. 5 a is local IP access data flow diagram in mobile communication system of the present invention, Fig. 5 b is that in mobile communication system of the present invention, local IP accesses another kind of data flow diagram, and Fig. 5 a has shown respectively with Fig. 5 b the signal data flow that local IP access is connected with core net in the wireless communication system of Fig. 2, Fig. 3 a, Fig. 3 b and Fig. 4.Wherein Fig. 5 a is the data flow of employing mode one, and Fig. 5 b is the data flow of employing mode two.
At above-mentioned local IP access, connect in process of establishing, when user terminal is idle, need be indirect tunnel by direct tunnel conversion, now need the S-GW of core net to participate in, and when user terminal reenters connected state, need again become direct tunnel, now, no longer need core net S-GW, and the informational needs that the subscriber's local IP access that S-GW preserves when idle connects is deleted.In the prior art, when entering connected state, can not delete user terminal the information that the IP access on S-GW connects, therefore can cause the information on S-GW to discharge, this may cause the upper canned data of S-GW to cause its data-handling efficiency low too much, thereby affects the forwarding of data.
Summary of the invention
In view of this, main purpose of the present invention is to provide method for releasing and the system that in a kind of communication system of supporting local IP access, tunnel connects, and can after having set up, discharge the indirect tunnel that core net gateway is set up in direct tunnel.
For achieving the above object, technical scheme of the present invention is achieved in that
Support the method for releasing that in the communication system of local IP access, tunnel connects, comprising:
At user terminal, carry out in service request or tracing section updating process, Mobility Management Entity MME sends to described core net gateway the release message that local IP access connects, and described core net gateway discharges according to described release message the information that described local IP access connects.
Preferably, the information that described local IP access connects comprises beared information and/or contextual information.
Preferably, before service request or tracing section updating, described method also comprises:
When described user terminal enters idle condition or have the downlink data arrival of described user terminal, the local IP access link information that described MME notice core net gateway is preserved described user terminal, and initiate to local gateway the bearer update that described local IP access connects.
Preferably, described wireless side network element comprises Home eNodeB or macro base station or femto gateway or the combination of radio network controller or Home eNodeB and femto gateway or the combination of macro base station and radio network controller.
Preferably, described MME sends the release message of the local IP access connection of described user terminal to described core net gateway, comprising:
When described user terminal has business, to described MME, send service request, described MME initiates described user terminal context to described wireless side network element and sets up request;
Described MME is after radio bearer between described wireless side network element and described user terminal is set up, judge whether described user terminal exists local IP access to connect, while existing, to local gateway, initiate bearer update, and send to described core net gateway the release message that local IP access connects.
Or described MME sends the release message of the local IP access connection of described user terminal to described core net gateway, comprising:
Described user terminal is when having business, to described MME, send service request, described MME initiates described user terminal context to described wireless side network element and sets up request, and to described core net gateway, sends the release message that local IP access connects when set release timer is overtime.
Or described MME sends the release message of the local IP access connection of described user terminal to described core net gateway, comprising:
Described user terminal regular update tracking area list or cause tracking area list to change because of mobile, to described wireless side network element, send tracing section updating request, described wireless side network element is described user terminal selecting MME, and described tracing section updating request is transmitted to described MME, described MME initiates described user terminal context to described wireless side network element and sets up request;
Described MME is after radio bearer between described wireless side network element and described user terminal is set up, judge whether described user terminal exists local IP access to connect, while existing, to local gateway, initiate bearer update, and send to described core net gateway the release message that local IP access connects.
Or described MME sends the release message of the local IP access connection of described user terminal to described core net gateway, comprising:
Described user terminal regular update tracking area list or cause tracking area list to change because of mobile, to described wireless side network element, send tracing section updating request, described wireless side network element is described user terminal selecting MME, and described tracing section updating request is transmitted to described MME, described MME initiates described user terminal context to described wireless side network element and sets up request, and to described core net gateway, sends the release message that local IP access connects when set release timer is overtime.
Support the delivery system that in the communication system of local IP access, tunnel connects, comprising:
Whether whether the first determining unit, is arranged in described MME, for determining that user terminal is current, have the tracking area of business or described user terminal to upgrade, and triggers the first transmitting element while being;
The first transmitting element, the release message connecting for send the local IP access of described user terminal to core net gateway;
Releasing unit, is arranged in described core net gateway, the information connecting for discharge the local IP access of described user terminal according to described release message.
Preferably, the information that described local IP access connects comprises beared information and/or contextual information.
Preferably, described system also comprises:
Notification unit, is arranged in described MME, when entering idle condition at described user terminal or having the downlink data of described user terminal to arrive, notifies described core net gateway;
Storage unit, is arranged in described core net gateway, for preserving the local IP access link information of described user terminal;
Bearer update is initiated unit, the bearer update connecting for initiate described local IP access to local gateway.
Preferably, described wireless side network element comprises Home eNodeB or macro base station or femto gateway or the combination of radio network controller or Home eNodeB and femto gateway or the combination of macro base station and radio network controller.
Preferably, described system also comprises:
The second transmitting element, at described user terminal when having business, to described MME, send service request;
First initiates unit, is arranged in described MME, for initiate described user terminal context to described wireless side network element, sets up request;
The first judging unit, is arranged in described MME, after setting up at radio bearer between described wireless side network element and described user terminal, judges that whether described user terminal exists local IP access to connect, and triggers the second initiation unit while existing;
Second initiates unit, for initiating bearer update to local gateway, and to described core net gateway, sends the release message that local IP access connects by described the first transmitting element.
Or described system also comprises:
Setting unit, for arranging release timer;
The second transmitting element, at described user terminal when having business, to described MME, send service request;
The 3rd initiates unit, is arranged in described MME, for initiate described user terminal context to described wireless side network element, sets up request;
The second determining unit, whether overtime for determining described release timer, while being, trigger the first transmitting element and send to described core net gateway the release message that local IP access connects.
Or described system also comprises:
The 3rd transmitting element, for upgrading at described user terminal that the tracking area list cycle arrives or because described user terminal moves while causing tracking area list to change, sending tracing section updating request to described wireless side network element;
The first selected cell, is arranged in described wireless side network element, is used to described user terminal selecting MME;
The first retransmission unit, is arranged in described wireless side network element, for described tracing section updating request is transmitted to described MME;
The 4th initiates unit, is arranged in described MME, for initiate described user terminal context to described wireless side network element, sets up request;
The second judging unit, is arranged in described MME, after setting up at radio bearer between described wireless side network element and described user terminal, judges that whether described user terminal exists local IP access to connect, and triggers the 5th and initiates unit while existing;
The 5th initiates unit, for initiating bearer update to local gateway, and to described core net gateway, sends the release message that local IP access connects by described the first transmitting element.
Or described system also comprises:
The 4th transmitting element, for upgrading at described user terminal that the tracking area list cycle arrives or because described user terminal moves while causing tracking area list to change, sending tracing section updating request to described wireless side network element;
The second selected cell, is arranged in described wireless side network element, is used to described user terminal selecting MME;
The second retransmission unit, is arranged in described wireless side network element, for described tracing section updating request is transmitted to described MME;
The 6th initiates unit, is arranged in described MME, for initiate described user terminal context to described wireless side network element, sets up request;
The 3rd determining unit, whether overtime for determining described release timer, while being, trigger the first transmitting element and send to described core net gateway the release message that local IP access connects.
In the present invention, when user terminal is during in idle condition, the downlink tunnel of the local IP access of described user terminal is transferred to core-network side, set up the tunnel between local gateway and core net gateway, send to the data of described user terminal will be cached to core net gateway, then be handed down to described user terminal by core net gateway.And when user terminal has business or during tracing section updating, the direct tunnel of local IP access re-establishes, now, MME will send the release message that discharges local IP access link information to core net gateway, core net gateway will discharge the information of local IP access connection, thereby guaranteed the timely release of invalid information on core net gateway, guaranteed the efficiency of core net gateway processing network side data.
Accompanying drawing explanation
Fig. 1 a is the schematic diagram of mobile communications network connected mode one in prior art;
Fig. 1 b is the schematic diagram of mobile communications network connected mode two in prior art;
Fig. 2 is the schematic diagram of mobile communications network connected mode three in prior art;
Fig. 3 a is the schematic diagram of mobile communications network connected mode four in prior art;
Fig. 3 b is the schematic diagram of mobile communications network connected mode five in prior art;
Fig. 4 is the schematic diagram of mobile communications network connected mode six in prior art;
Fig. 5 a is local IP access data flow diagram in mobile communication system of the present invention;
Fig. 5 b is that in mobile communication system of the present invention, local IP accesses another kind of data flow diagram;
Fig. 6 is the flow chart that the direct tunnel of LTE system of the present invention changes indirect tunnel into;
Fig. 7 discharges a kind of flow chart in indirect tunnel in LTE system business request flow process of the present invention;
Fig. 8 is that LTE system keeps track of the present invention district more discharges the another kind of flow chart in indirect tunnel in new technological process;
Fig. 9 is the composition structural representation that the present invention supports the delivery system that in the communication system of local IP access, tunnel connects.
Embodiment
Basic thought of the present invention is: when user terminal is during in idle condition, the downlink tunnel of the local IP access of described user terminal is transferred to core-network side, set up the tunnel between local gateway and core net gateway, send to the data of described user terminal will be cached to core net gateway, then be handed down to described user terminal by core net gateway.And when user terminal has business or during tracing section updating, the direct tunnel of local IP access re-establishes, now, MME will send the release message that discharges local IP access link information to core net gateway, core net gateway will discharge the information of local IP access connection, thereby guaranteed the timely release of invalid information on core net gateway, guaranteed the efficiency of core net gateway processing network side data.
For making the object, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 6 is the flow chart that the direct tunnel of LTE system of the present invention changes indirect tunnel into, as shown in Figure 6, Fig. 6 is that the present invention is on the basis of Fig. 2 network architecture, when LTE system user terminal enters Idle state, (S1 discharges flow process) directly changes the schematic flow sheet in indirect tunnel in tunnel, and in this example, the direct tunnel of LTE system changes indirect tunnel into and comprises the following steps:
Step 601: need the signaling of releasing user terminal to connect and during carrying, send user terminal context releasing request to MME when wireless side network element detects.
Step 602:MME receives the user terminal context releasing request of wireless side network element, or MME detects when needing the signaling of releasing user terminal to connect and carrying, MME checks whether user terminal exists local IP access to connect or direct tunnel, while existing, carry out subsequent step, otherwise according to prior art, carry out flow process, because processing mode and the technical solution of the present invention of existing procedure are irrelevant, do not repeat.
Step 603:MME is suitable core net S-GW of user terminal selecting, and send session establishment request to it, and carry the local gateway tunnel information that local IP access connects, also carry operation indication, indication core net S-GW goes local gateway to upgrade the tunnel information that local IP access connects simultaneously.
Step 604: core net S-GW is according to the indication of MME, and the local IP access connection establishment context for user terminal, distributes the information such as Tunnel Identifier, preserves the local gateway tunnel information that local IP access connects, and to the request of local gateway transmission bearer update.
Step 605: local gateway is received after the bearer update request message of core net S-GW, upgrade the tunnel information that local IP access connects, the end points in tunnel is changed into core net S-GW by wireless side network element, delete the information of wireless side network element, preserve the information of core net S-GW, respond bearer update response message to core net S-GW.
Step 606: core net S-GW receives after bearer update response message, to MME, responds session establishment response message.
Step 607:MME initiates the release command of user terminal context to wireless side network element.
Step 608: wireless side network element may be carried out RRC Connection Release process.
Step 609: wireless side network element is replied user terminal context to MME and discharged.
Adopt above-mentioned flow process, when user terminal enters Idle state, directly tunnel changes indirect tunnel into, has preserved the tunnel information that local IP access connects on core net S-GW.
It should be noted that, when MME determines that core net receives the downlink data of described user terminal, the local IP access link information that notice core net gateway is preserved to described user terminal, and initiate to local gateway the bearer update that described local IP access connects, also can set up the indirect tunnel shown in Fig. 6, shown in the mode of the foundation in tunnel and Fig. 6 to set up mode basic identical, the condition difference just triggering.
The present invention is directed to the user terminal that above-mentioned indirect tunnel is set up, when user terminal has business or during tracing section updating, the direct tunnel of local IP access connection will be re-established, now, notice core net S-GW is deleted to the indirect tunnel information that local IP access connects, below by concrete example, illustrate in detail technical scheme of the present invention.
Fig. 7 discharges a kind of flow chart in indirect tunnel in LTE system business request flow process of the present invention, as shown in Figure 7, discharge indirect tunnel and comprise the following steps in this example LTE system business request flow process:
Step 701: the user terminal in Idle state, when having upstream data to send or need to accept downlink data, user terminal sends service request to MME, and concrete, service request is transmitted to MME by wireless side network element.
Step 702: carry out Non-Access Stratum (NAS, Non-Access-Stratum) verification process, this step is optional.
Step 703:MME initiates user terminal context Establishing process, sends user terminal context set up request to wireless side network element.When user terminal has local IP access connection, MME can arrange release timer, when release timer is overtime, to core net S-GW, initiates the release that local IP access connects indirect tunnel.Wherein, after the step 703 and following step 707 is front all release timer can be set.
Step 704: wireless side network element is carried out radio bearer process of establishing.
Step 705: wireless side network element is responded user terminal context to MME and set up response.
Step 706:MME, according to the result of setting up of radio bearer, upgrades the IP connection that radio bearer is successfully established.While there is local IP access connection or direct tunnel in MME judgement user terminal, need to initiate bearer update flow process to local gateway, when local IP access connects direct tunnel and adopts " background technology " described mode one to set up, bearer update requirements of process is through core net S-GW, when local IP access connects direct tunnel and adopts " background technology " described mode two to set up, bearer update flow process only need to be carried out between MME and local gateway.
Step 707: if MME is provided with release timer, and after this timer expiry, MME initiates carrying to core net S-GW and discharges flow process (sending carrying release command or session releasing request to core net S-GW), and indicate S-GW not need to discharge local gateway, at core net S-GW, receive after this message, the relevant information that releasing user terminal local IP access connects, comprises beared information and/or contextual information etc.If MME does not arrange timer, release flow process is herein triggered automatically by the end of step 706.
Carry out after this flow process, when user terminal reenters connected state, tunnel changes direct tunnel into indirectly, and has successfully discharged the relevant information that the upper local IP access of preserving of core net S-GW connects.
Fig. 8 is that LTE system keeps track of the present invention district more discharges the another kind of flow chart in indirect tunnel in new technological process, and as shown in Figure 8, this example LTE system keeps track district more discharges indirect tunnel in new technological process and comprises the following steps:
Step 801: the user terminal of Idle state is regularly or due to the mobile tracking area list initiating updating of tracking area flow process that changes that causes.User terminal send the request of NAS message-tracing section updating to current be the wireless side network element of subscriber terminal service.Wireless side network element is selected the MME of current service for user, and tracing section updating request is included in to initial user message issues MME.
Step 802: carry out NAS verification process, this step is optional step.
Step 803:MME initiates IP and connects bearer update flow process.When MME judgement need to create carrying for user terminal, (in as tracing section updating, carry indication or MME oneself judgement), for local IP access, connect or follow-up step need to be carried out in direct tunnel, otherwise carry out according to prior art.While there is local IP access connection or direct tunnel in MME judgement user, need to initiate bearer update flow process to local gateway, when local IP access connects direct tunnel and adopts " background technology " described mode one to set up, bearer update requirements of process is through core net S-GW, when local IP access connects direct tunnel and adopts " background technology " described mode two to set up, bearer update flow process only need to be carried out between MME and local gateway.
When MME initiates bearer update flow process to local gateway, release timer can be set on MME, prepare to initiate the release that local IP access connects indirect tunnel.
Wherein, any time after this step and before execution step 805 all can arrange this release timer.
Step 804: carry out radio bearer process of establishing;
Step 805: if MME is provided with release timer, and after this timer expiry, MME initiates carrying to core net S-GW and discharges flow process, and indicates S-GW not need to discharge local gateway.Core net S-GW receives after this message, and the relevant information that releasing user terminal local IP access connects, comprises beared information, contextual information etc.If MME does not arrange timer, release flow process is herein triggered automatically by the end of step 804.
Carry out after the handling process of this example, when user terminal reenters connected state, tunnel changes direct tunnel into indirectly, and has successfully discharged the relevant information that the upper local IP access of preserving of core net S-GW connects.
In the embodiment shown in fig. 8, with MME, do not change as example, the tracing section updating flow process that MME changes similarly, just needs to carry out context mutual between new, old MME, and the setting of release timer, the release of S-GW are carried out by old MME.
For simplified characterization, above embodiment only be take and is not existed home base-station gateway and local access network to close to be arranged in wireless side network element or near the situation it method for releasing that direct tunnel style local IP access is connected to be described as example.Exist the situation of home base-station gateway similar with it.Certainly, there is home base-station gateway, and local access network closes while being positioned near wireless side network element or its, and the message between the message between Mobility Management Entity and wireless side network element and Mobility Management Entity and local access network pass will be via home base-station gateway transmission.When there being home base-station gateway, and local access network closes while being positioned near home base-station gateway or its, message between Mobility Management Entity and wireless side network element will be via home base-station gateway transmission, and Mobility Management Entity and the local access network message between closing no longer needs home base-station gateway to forward.In these cases, the delivery mode of local IP access is very similar to above-described embodiment, can not impact setting forth the present invention, therefore be no longer repeated in this description at this.
Above embodiment not only can be applied to home base station system, too applicable and macro base station system.Wireless side network element can be base station, base station from home, home base-station gateway or radio network controller (RNC in the above-described embodiments, Radio Network Controller), also can be the combination of Home eNodeB and femto gateway, or the combination of macro base station and radio network controller.It is L-PGW that local access network closes.Core net gateway can be S-GW.Core net IAD can be P-GW.The wireless side network element of local IP access can to close address identical with local access network.
It can be the triage operator of local IP access subscriber's local network, local IP access company local network or local IP access the Internet or Internet service that local IP access connects.The wireless side network element of local IP access can be identical with local gateway address.
The local IP access relating in the present invention can refer to LIPA, comprises one of following: the triage operator of local IP access subscriber's local network, local IP access company local network, local IP access the Internet, the Internet or company or home business.
Fig. 9 is the composition structural representation that the present invention supports the delivery system that in the communication system of local IP access, tunnel connects, as shown in Figure 9, the present invention supports the delivery system that in the communication system of local IP access, tunnel connects to comprise the first determining unit 91, the first transmitting element 92 and releasing unit 93, wherein, the first determining unit 91 is arranged in MME, for determining that user terminal is current, whether there is the tracking area of business or described user terminal whether to upgrade, while being, trigger the first transmitting element 92; The release message that the first transmitting element 92 connects for send the local IP access of described user terminal to core net gateway; Releasing unit 93 is arranged in described core net gateway, the information connecting for discharge the local IP access of described user terminal according to described release message.Wherein, the information that described local IP access connects comprises beared information and/or contextual information.
The present invention supports the delivery system that in the communication system of local IP access, tunnel connects also to comprise: notification unit, be arranged in described MME, be used for, when described user terminal enters idle condition or have the downlink data arrival of described user terminal, notifying described core net gateway; Storage unit, is arranged in described core net gateway, for preserving the local IP access link information of described user terminal; Bearer update is initiated unit, the bearer update connecting for initiate described local IP access to local gateway.
Above-mentioned wireless side network element comprises Home eNodeB or macro base station or femto gateway or the combination of radio network controller or Home eNodeB and femto gateway or the combination of macro base station and radio network controller.
The present invention supports the delivery system that in the communication system of local IP access, tunnel connects also to comprise: the second transmitting element, at described user terminal when having business, to described MME, send service request; First initiates unit, is arranged in described MME, for initiate described user terminal context to described wireless side network element, sets up request; The first judging unit, is arranged in described MME, after setting up at radio bearer between described wireless side network element and described user terminal, judges that whether described user terminal exists local IP access to connect, and triggers the second initiation unit while existing; Second initiates unit, for initiating bearer update to local gateway, and to described core net gateway, sends the release message that local IP access connects by described the first transmitting element.
Or the present invention supports the delivery system that in the communication system of local IP access, tunnel connects also to comprise: setting unit, for release timer is set; The second transmitting element, at described user terminal when having business, to described MME, send service request; The 3rd initiates unit, is arranged in described MME, for initiate described user terminal context to described wireless side network element, sets up request; The second determining unit, whether overtime for determining described release timer, while being, trigger the first transmitting element and send to described core net gateway the release message that local IP access connects.
Or, the present invention supports the delivery system that in the communication system of local IP access, tunnel connects also to comprise: the 3rd transmitting element, for upgrading at described user terminal that the tracking area list cycle arrives or because described user terminal moves while causing tracking area list to change, sending tracing section updating request to described wireless side network element; The first selected cell, is arranged in described wireless side network element, is used to described user terminal selecting MME; The first retransmission unit, is arranged in described wireless side network element, for described tracing section updating request is transmitted to described MME; The 4th initiates unit, is arranged in described MME, for initiate described user terminal context to described wireless side network element, sets up request; The second judging unit, is arranged in described MME, after setting up at radio bearer between described wireless side network element and described user terminal, judges that whether described user terminal exists local IP access to connect, and triggers the 5th and initiates unit while existing; The 5th initiates unit, for initiating bearer update to local gateway, and to described core net gateway, sends the release message that local IP access connects by described the first transmitting element.
Or, the present invention supports the delivery system that in the communication system of local IP access, tunnel connects also to comprise: the 4th transmitting element, for upgrading at described user terminal that the tracking area list cycle arrives or because described user terminal moves while causing tracking area list to change, sending tracing section updating request to described wireless side network element; The second selected cell, is arranged in described wireless side network element, is used to described user terminal selecting MME; The second retransmission unit, is arranged in described wireless side network element, for described tracing section updating request is transmitted to described MME; The 6th initiates unit, is arranged in described MME, for initiate described user terminal context to described wireless side network element, sets up request; The 3rd determining unit, whether overtime for determining described release timer, while being, trigger the first transmitting element and send to described core net gateway the release message that local IP access connects.
Those skilled in the art are to be understood that, shown in Fig. 9 or, the present invention support delivery system that in the communication system of local IP access, tunnel connects be for realize aforesaid or, the present invention supports the method for releasing that in the communication system of local IP access, tunnel connects to arrange, in system shown in Fig. 9, the function of each processing unit can be with reference to the description of method shown in Fig. 6 to Fig. 8 and understand, the function of each processing unit can realize by the program running on processor, also can realize by concrete logical circuit.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.
Claims (14)
1. support the method for releasing that in the communication system of local IP access, tunnel connects, it is characterized in that, comprising:
At user terminal, carry out in service request or tracing section updating process, Mobility Management Entity MME sends to core net gateway the release message that local IP access connects, and described core net gateway discharges the information of the local IP access connection of described user terminal according to described release message; Wherein,
Described MME sends the release message of the local IP access connection of described user terminal to core net gateway, comprising:
Described user terminal, when having business, sends service request to described MME, and described MME initiates described user terminal context to wireless side network element and sets up request; Described MME is after radio bearer between described wireless side network element and described user terminal is set up, judge whether described user terminal exists local IP access to connect, while existing, to local gateway, initiate bearer update, and send to described core net gateway the release message that local IP access connects.
2. method according to claim 1, is characterized in that, the information that described local IP access connects comprises beared information and/or contextual information.
3. method according to claim 1 and 2, is characterized in that, before service request or tracing section updating, described method also comprises:
When described user terminal enters idle condition or have the downlink data arrival of described user terminal, the local IP access link information that described MME notice core net gateway is preserved described user terminal, and initiate to local gateway the bearer update that described local IP access connects.
4. method according to claim 3, it is characterized in that, described wireless side network element comprises Home eNodeB or macro base station or femto gateway or the combination of radio network controller or Home eNodeB and femto gateway or the combination of macro base station and radio network controller.
5. method according to claim 1, is characterized in that, described MME initiates described user terminal context to described wireless side network element and sets up after request, and described method also comprises:
When set release timer is overtime, to described core net gateway, send the release message that local IP access connects.
6. method according to claim 1, is characterized in that, described MME sends the release message of the local IP access connection of described user terminal to core net gateway, comprising:
Described user terminal regular update tracking area list or cause tracking area list to change because of mobile, to described wireless side network element, send tracing section updating request, described wireless side network element is described user terminal selecting MME, and described tracing section updating request is transmitted to described MME, described MME initiates described user terminal context to described wireless side network element and sets up request;
Described MME is after radio bearer between described wireless side network element and described user terminal is set up, judge whether described user terminal exists local IP access to connect, while existing, to local gateway, initiate bearer update, and send to described core net gateway the release message that local IP access connects.
7. method according to claim 1, is characterized in that, described MME sends the release message of the local IP access connection of described user terminal to core net gateway, comprising:
Described user terminal regular update tracking area list or cause tracking area list to change because of mobile, to described wireless side network element, send tracing section updating request, described wireless side network element is described user terminal selecting MME, and described tracing section updating request is transmitted to described MME, described MME initiates described user terminal context to described wireless side network element and sets up request, and to described core net gateway, sends the release message that local IP access connects when set release timer is overtime.
8. support the delivery system that in the communication system of local IP access, tunnel connects, it is characterized in that, comprising:
Whether whether the first determining unit, is arranged in MME, for determining that user terminal is current, have the tracking area of business or described user terminal to upgrade, and triggers the first transmitting element while being;
The first transmitting element, the release message connecting for send the local IP access of described user terminal to core net gateway;
Releasing unit, is arranged in described core net gateway, the information connecting for discharge the local IP access of described user terminal according to described release message;
The second transmitting element, at described user terminal when having business, to described MME, send service request;
First initiates unit, is arranged in described MME, for initiate described user terminal context to wireless side network element, sets up request;
The first judging unit, is arranged in described MME, after setting up at radio bearer between wireless side network element and described user terminal, judges that whether described user terminal exists local IP access to connect, and triggers the second initiation unit while existing;
Second initiates unit, for initiating bearer update to local gateway, and to described core net gateway, sends the release message that local IP access connects by described the first transmitting element.
9. system according to claim 8, is characterized in that, the information that described local IP access connects comprises beared information and/or contextual information.
10. system according to claim 8 or claim 9, is characterized in that, described system also comprises:
Notification unit, is arranged in described MME, when entering idle condition at described user terminal or having the downlink data of described user terminal to arrive, notifies described core net gateway;
Storage unit, is arranged in described core net gateway, for preserving the local IP access link information of described user terminal;
Bearer update is initiated unit, the bearer update connecting for initiate described local IP access to local gateway.
11. systems according to claim 10, it is characterized in that, described wireless side network element comprises Home eNodeB or macro base station or femto gateway or the combination of radio network controller or Home eNodeB and femto gateway or the combination of macro base station and radio network controller.
12. systems according to claim 10, is characterized in that, described system also comprises:
Setting unit, for arranging release timer;
The second determining unit, whether overtime for determining described release timer, while being, trigger the first transmitting element and send to described core net gateway the release message that local IP access connects.
13. systems according to claim 10, is characterized in that, described system also comprises:
The 3rd transmitting element, for upgrading at described user terminal that the tracking area list cycle arrives or because described user terminal moves while causing tracking area list to change, sending tracing section updating request to described wireless side network element;
The first selected cell, is arranged in described wireless side network element, is used to described user terminal selecting MME;
The first retransmission unit, is arranged in described wireless side network element, for described tracing section updating request is transmitted to described MME.
14. systems according to claim 10, is characterized in that, described system also comprises:
The 4th transmitting element, for upgrading at described user terminal that the tracking area list cycle arrives or because described user terminal moves while causing tracking area list to change, sending tracing section updating request to described wireless side network element;
The second selected cell, is arranged in described wireless side network element, is used to described user terminal selecting MME;
The second retransmission unit, is arranged in described wireless side network element, for described tracing section updating request is transmitted to described MME;
The 3rd determining unit, whether overtime for determining release timer, while being, trigger the first transmitting element and send to described core net gateway the release message that local IP access connects.
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| CN103428801B (en) * | 2012-05-25 | 2019-06-21 | 中兴通讯股份有限公司 | A kind of method and apparatus of realizing route management |
| CN103428889B (en) * | 2012-05-25 | 2019-01-11 | 中兴通讯股份有限公司 | A kind of method and apparatus of realizing route management |
| CN103826326B (en) * | 2012-11-19 | 2019-05-07 | 中兴通讯股份有限公司 | The method and device of local IP access Connection Release, mobile management unit, wireless side network element |
| CN117354967A (en) * | 2017-02-03 | 2024-01-05 | 华为技术有限公司 | Connection release method and device |
| CN114071606B (en) * | 2020-08-06 | 2023-10-27 | 北京佰才邦技术股份有限公司 | Switching method, switching device and control equipment |
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