CN101039507B

CN101039507B - Method and apparatus for establishing and releasing tunnel in evolution network framework

Info

Publication number: CN101039507B
Application number: CN2006100648433A
Authority: CN
Inventors: 郭小龙
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2006-03-14
Filing date: 2006-03-14
Publication date: 2011-09-14
Anticipated expiration: 2026-03-14
Also published as: CN101039507A

Abstract

The present invention discloses a tunnel establishing and releasing method in the evolution network architecture. The said evolution network architecture is composed of some logical entities: an evolution base station eNode B, a control face server CPS, a mobile management entity MME, and a user face entity UPE. The method includes: when a user device UE is in the network attachment process or entering an activation state from an idle state, any one side of the eNode B and UPE obtains the address information of the other side; then their own address information will be sent to each other through the signaling interface, thus building the tunnel. when the UE has finished the network attachment process or entering an idle state from an activation state, any one side of the eNode B and UPE inform the other party to release the tunnel through the signaling interface between them, the other party releases the related resources after it receives the notice. Application of the present invention can effectively establish and release the data transmission tunnel to ensure the correct transmission of the business data.

Description

Tunnel foundation, method for releasing and device in the evolution network framework

Technical field

The present invention relates to communication technical field, be specifically related to tunnel foundation, method for releasing and device in a kind of evolution network framework.

Background technology

UMTS (Universal Mobile Telecommunications System, universal mobile telecommunications system) be to adopt WCDMA (Wideband Code Division Multiple Access, the Wideband Code Division Multiple Access (WCDMA) access) 3-G (Generation Three mobile communication system) of air interface technologies also is called the WCDMA communication system with the UMTS system usually.The UMTS system has adopted and the similar structure of second generation mobile communication system, comprises wireless access network (RAN, Radio Access Network) and core net (CN, Core Network).Wherein RAN is used to handle all and wireless function associated, and being used to handle voice calls all in the UMTS system, CN is connected with data, and the exchange of realization and external network and routing function.CN is from being divided into circuit commutative field (CS, Circuit Switched Domain) and packet-switched domain (PS, Packet SwitchedDomain) in logic.Land radio access web (UTRAN, UMTS Territorial Radio Access NetworkUMTS), CN and subscriber equipment (UE, User Equipment) constitute whole UMTS system together, its system configuration as shown in Figure 1:

Wherein, the UTRAN network configuration is as shown in Figure 2:

It comprises one or more RNSs (RNS, Radio Network Subsystem).A RNS is made up of a radio network controller (RNC, Radio Network Controller) and one or more Node B (base station).RNC is used for distributing and is attached thereto with control or the Radio Resource of relevant Node B.Node B then finish and RNC between Iub interface and and UE between the conversion of data flow of Uu interface, also participate in a part of RRM simultaneously.

The core network architecture in 3G PS territory is as shown in Figure 3:

Wherein, service universal grouping wireless business supporting node (SGSN, Serving GPRS SupportNode) is a basic composition network element of packet switching (PS, Packet Switched) network.Its significant feature is exactly the IP grouping of transmitting I/O for the UE of this SGSN coverage, and its status is similar to the visitor mobile switch center (VMSC, Visited Mobile Switching Center) in the CS territory.

Ggsn (GGSN, Gateway GPRS Support Node) also is a Network Element Function entity of introducing in order in the UMTS network, to provide the PS business function, route and the encapsulation of packet between PS net and external data network is provided.Which GGSN the user selects as gateway, is definite according to the Access Point Name (APN, Access Point Name) of user's CAMEL-Subscription-Information and user's request in pdp context activation.

In order to guarantee the correct transmission of IP stream, need to use tunneling technique.In the Release version of 3GPP before Release7, between the SGSN of RNC and core net (GPRS serving GPRS support node), used GTP (GPRS Tunneling Protocol, GPRS Tunnel Protocol) agreement, and for each user, if its IP address different or/and service quality (QoS, the Quality of Service) difference of the Session that uses (session) all to use a different GTP tunnel; The tunnel of this GTP has determined the QoS of Session in the above.The QoS difference is just set up different tunnels; Even and QoS is identical,, equally also can use different tunnels if APN (Access Point Name) is different.

Along with the development of 3G (Third Generation) Moblie technology, the network planning and optimization work are more and more important.Because the quick growth of number of mobile users and the continuous appearance of new business, the requirement system is supporting multiple business and is satisfying under certain QoS (service quality) condition, obtain the good network capacity, satisfy certain wireless coverage requirement, provide best service by the balanced relation between adjustment capacity, covering, the quality simultaneously.

In 3GPP, all in Long Term Evolution (LTE, the Long TermEvolution) system of active research 3G, the purpose of LTE provides a kind of low-cost network that can reduce time delay, raising user data rate, improve power system capacity and covering in each manufacturer at present.Only use PS territory business, bearer network all is the IP carrying.Based on this purpose, derive a lot of new network architectures, a kind of popular network architecture as shown in Figure 4:

Wherein, eNode B (evolved Node B) is the Node B of evolution, has physical layer (PHY, the Physical Sublayer ﹠amp of air protocol stack at least; Physical Layer) and medium access control (MAC, Media Access Control) layer, other protocol stack positions are indefinite, and adopt new physical-layer techniques (as orthogonal frequency division multiplex OFDM).

EGSN (evolved GPRS Support Node) is the GSN (GPRS Support Node) of evolution, is made up of Mobility Management Entity (MME, Mobility Management Entity) and user entity (UPE, User Plane Entity).MME is used for management and storage UE context (as the mobility status of the sign of the UE of idle condition, UE, user security parameters etc.), also produce temporary mark and distribute to UE, can quarter at certain TA (Tracking Area to UE, tracking area) or Public Land Mobile Nerwork (PLMN, Public Land Mobile Network) checks, also can carry out authentication UE.UPE be used to the to terminate downlink data of UE of idle condition arrives UE as downlink data, triggers or initiate paging; Its management or storage UE context (as IP bearing parameter or network routing iinformation), the data of carrying out customer service in Lawful Interception duplicate etc.

Chain of command server (CPS, Control Plane Server) is used to finish the RRM of minizone eNode B, and bears part RRC (Radio Resource control) function.

Home subscriber server (HSS, Home Subscriber Server) is responsible for preserving user related information: user ID, numbering and addressing information; User security information: network insertions such as authentication and authentication control; Customer position information; User's master data information.

Anchor (anchor point) is a user entity of supporting that UE moves between different access systems, supports the switching between different access systems.

Distinguish from logic function, eGSN is separated into MME and UPE.But from physical node, each logic entity has multiple compound mode, merges into a physical node as CPS and MME, UPE, and eNodeB is a physical node; Or eNode B and CPS merge into a physical node, and MME, UPE merge into physical node or the like.

Equally, in order to guarantee the correct transmission of IP stream, need between eNode B and UPE, use tunneling technique.But UPE and eNode B are two user entities, in order to set up the tunnel of UPE to eNode B, need UPE and eNode B to understand partner address mutually.In network evolution, MME may separate with UPE, and the corresponding one or more UPE of MME possibility, also may separate with eNode B by CPS, like this, how to make two nodes understand the problem of partner address mutually with regard to existing between UPE and the eNode B by signaling.Do not have a clear and definite solution at present.

And the IP that network evolution requires UE will set up acquiescence when network attachment connects, and requires the downlink data of the UE of Idle (free time) state to terminate in UPE, can directly data distributing be arrived eNode B if UPE has the tunnel information of eNode B.Therefore, in order to reduce network signal, when UE is in Idle (free time) state, needing to discharge UE connects to the user's face between the UPE, promptly discharge the Radio Resource control (RRC of UE to eNodeB, Radio Resource Control) connection is connected to the tunnel of eNode B with UPE, keeps the connection of UPE to Anchor.Connect the present also clear and definite solution of neither one for how discharging the tunnel of UPE to eNode B.

Summary of the invention

The purpose of this invention is to provide tunnel establishing method in a kind of evolution network framework,, set up data transmission tunnel effectively, guarantee the correct transmission of business datum so that can understand partner address mutually between two user entities.

Another object of the present invention provides tunnel method for releasing in a kind of evolution network framework, so that after UE enters idle condition, dischargeing corresponding tunnel effectively connects, reduce UE in the evolution system need carry out routing update when mobile between eNodeB processing, reduce network signal, improve system effectiveness.

Another object of the present invention provides the foundation and the releasing device in tunnel in a kind of evolution network framework, to set up data transmission tunnel effectively in evolution network framework, guarantees the correct transmission of business datum, improves system effectiveness.

For this reason, the invention provides following technical scheme:

Tunnel establishing method in a kind of evolution network framework, described evolution network framework comprises logic entity: evolution base station eNode B, chain of command server CPS, user entity UPE and Mobility Management Entity MME, described method comprises step:

A, user equipment (UE) are in the network attachment process or when idle condition enters state of activation, and the either party obtains the other side's address information among eNode B and the UPE;

B, the eNode B that gets access to partner address information or UPE send to the other side by the signaling interface between them with oneself address information;

C, eNode B and UPE write down the other side's address information respectively, set up the tunnel between eNode B and the UPE.

Described steps A comprises:

User equipment (UE) sends the UPE sign of its record to eNode B in the network insertion process;

ENode B obtains the address information of UPE according to described UPE sign Network Search configuration information.

Described steps A is specially:

UE is in the network attachment process or when idle condition enters state of activation, and eNode B carries out Signalling exchange by CPS and MME, obtains the address information of UPE.

Described eNode B carries out Signalling exchange by CPS and MME, and the step of obtaining the address information of UPE comprises:

MME obtains the address information of UPE by activating packet data protocol PDP Context process;

MME sends RAB RAB assignment request message to CPS, and the address information of carrying UPE in this message;

CPS sends the address information of UPE to eNode B by triggering the Radio Resource reconfiguration course.

The step that described MME obtains the address information of UPE by activation packet data protocol PDP Context process comprises:

UE sends to MME and activates the PDP Context request message;

After MME receives described activation PDP Context request message, send foundation or activate the PDP context request message to UPE;

Behind UPE foundation or the activation PDP Context, send foundation or activate the PDP Context response message to MME, and the address information of in this message, carrying UPE.

Described CPS comprises the step that the address information of described UPE sends eNode B to by triggering the Radio Resource reconfiguration course:

CPS sends the Radio Resource reconfiguration request message to eNode B, and the address information of carrying UPE in this message;

After eNode B receives described Radio Resource reconfiguration request message, send the Radio Resource reconfiguration response message to CPS.

Described steps A is specially:

UE is in the network attachment process or when idle condition enters state of activation, and UPE carries out Signalling exchange by CPS and MME, obtains the address information of eNode B.

Described UE is in the network attachment process or when idle condition enters state of activation, and UPE carries out Signalling exchange by CPS and MME, and the step of obtaining the address information of eNode B comprises:

CPS obtains the address information of eNode B by initial direct-sending message;

CPS sends the address information of the eNode B that obtains to MME;

MME sends the address information of eNode B to UPE by activating or set up the PDP Context request message.

Described CPS comprises by the step that initial direct-sending message obtains the address information of eNode B:

Send Attach Request message to eNode B during the UE access network;

ENode B is transmitted to CPS with the Attach Request message of UE, and CPS is known the address information of eNode B according to this message.

UE initiates the RRC request of setting up and gives eNode B;

ENode B adopts connection-oriented signaling bear to be forwarded to CPS this message;

CPS is from this message or obtain the address information of eNode B from bottom carrying.

Described CPS is specially the step that the address information of the eNode B that obtains sends MME to:

CPS sends the address information of eNode B to MME by the wireless access load-bearing allocation response message.

CPS sends the address information of eNode B to MME by initial direct-sending message.

Described step B is specially:

The eNode B or the UPE that get access to partner address information set up tunneled requests message by the signaling interface between them to the other side's transmission, and carry the address information of oneself in this message.

When CPS and eNode B were a physical node, the Signalling exchange between eNode B and the CPS was the inside story flow process of this physical node;

When CPS and MME were a physical node, the Signalling exchange between CPS and the MME was the inside story flow process of this physical node;

When MME and UPE were a physical node, the Signalling exchange between MME and the UPE was the inside story flow process of this physical node.

Tunnel method for releasing in a kind of evolution network framework, described evolution network framework comprises logic entity: evolution base station eNode B, chain of command server CPS, user entity UPE and Mobility Management Entity MME, described method comprises step:

When user equipment (UE) after network attachment is finished or when state of activation enters idle condition, initiate link by user equipment (UE) or MME or CPS or UPE or eNode B and discharge;

If MME release or UE or CPS notice MME discharge link, then MME notice UPE discharges user's face tunnel;

UPE receives after the release user face tunnel command of MME or UPE initiates link and discharges, UPE by its with eNode B between signaling interface to eNode B transmission tunnel release command;

If CPS initiates to discharge, then CPS notice eNode B discharges user's face tunnel;

ENode B receives after the release user face tunnel command of CPS or eNode B initiates link and discharges, and eNode B sends the tunnel release command by the signaling interface between itself and the UPE to UPE;

Receive that the eNode B of tunnel release command or UPE carry out the tunnel and discharge, the invalid or relevant information of deleting this tunnel in the tunnel between mark eNode B and the UPE.

Described method further comprises:

Discharge the interface between CPS and the MME;

Discharge the Radio Resource control connection between CPS and the UE;

After the Radio Resource control connection discharged, CPS initiated the Radio Resource dispose procedure to eNode B, and request eNode B discharges corresponding Radio Resource.

The foundation in tunnel and releasing device in a kind of evolution network framework comprise logic entity: evolution base station eNode B, chain of command server CPS, user entity UPE and Mobility Management Entity MME,

Has signaling interface between eNode B and the UPE; The either party carries out in the network attachment process or obtain the other side's address information when idle condition enters state of activation at user equipment (UE) among eNode B and the UPE, by the signaling interface between them oneself address information is sent to the other side then, eNode B and UPE write down the other side's address information respectively, set up the tunnel between eNode B and the UPE; When UE after network attachment is finished or when state of activation enters idle condition, either direction the other side sends the tunnel release command among MME and the CPS, after the other side receives orders, the invalid or relevant information of deleting this tunnel in the tunnel between mark eNode B and the UPE.

CPS obtains the address information of eNode B by initial direct-sending message.

MME carries out in the network attachment process at UE, by setting up or activating packet data protocol PDP Context process and UPE carries out information interaction, obtains the address information of UPE;

MME when idle condition enters state of activation, carries out information interaction by upgrading PDP Context process and UPE at UE, obtains the address information of UPE.

MME obtains the address information of eNode B by the wireless access load-bearing allocation process from CPS, and sends the address information of UPE to CPS.

CPS obtains the address information of eNode B by the Radio Resource reconfiguration course, and sends the address information of UPE to eNode B.

By above technical scheme provided by the invention as can be seen, the present invention makes two user entity eNodeB and UPE carry out Signalling exchange by means of chain of command server CPS and MME, make eNode B or UPE wherein the either party obtain the other side's address information by CPS and/or MME, then by the signaling interface between eNode B and the UPE, directly initiate the tunnel to the opposing party and set up request, send oneself address information to the other side by this request, thereby set up the tunnel between eNode B and the UPE, guaranteed that UE carries out processes such as the registration of IMS (internet multimedia subnet) and business data transmission by this tunnel.After UE enters idle condition, discharge the tunnel if desired, no matter which logic entity the initiator is, eNode B or UPE are after wherein the either party receives the notice that discharges user's face tunnel, by the signaling interface between eNode B and the UPE, directly initiate the tunnel to the opposing party and discharge request, the opposing party responds this request and discharges related resource, the relevant information in mark eNode B or deletion tunnel invalid to the tunnel between the UPE.By the release in user's face tunnel between eNode B and the UPE, reduced UE in the evolution system need carry out routing update when mobile between eNode B processing effectively, reduce network signal, improved efficient.

Description of drawings

Fig. 1 is existing UMTS system configuration schematic diagram;

Fig. 2 is a UTRAN schematic network structure in the prior art;

Fig. 3 is a PS territory schematic network structure in the prior art;

Fig. 4 is a kind of 3G evolution network framework schematic diagram;

Fig. 5 is the realization flow figure of tunnel establishing method of the present invention;

Fig. 6 is the message flow of tunnel establishing method first embodiment of the present invention;

Fig. 7 be in the inventive method portable terminal as the called message flow that the tunnel is set up when entering state of activation;

Fig. 8 is the message flow of tunnel establishing method second embodiment of the present invention;

Fig. 9 is the message flow of tunnel establishing method the 3rd embodiment of the present invention;

Figure 10 is the message flow of tunnel establishing method the 4th embodiment of the present invention;

Figure 11 is the message flow of tunnel of the present invention method for releasing;

Figure 12 is the theory diagram of apparatus of the present invention.

Embodiment

The present invention does not limit to and is applied to alleged 3G grid at present, more can be applicable to other network systems of being developed based on the 3G network framework, as long as it satisfies this network architecture.But clearly demonstrating creation point of the present invention for more convenient, below is the example explanation with the 3G network.

In the 3G system evolved network architecture, because eNode B and UPE are two user entities, when UE in the network attachment process or when idle condition enters state of activation, need between eNode B and UPE, set up the tunnel, with the IMS registration of assurance UE and the processes such as correct transmission of business datum, so the present invention utilizes chain of command server CPS and Mobility Management Entity MME to carry out Signalling exchange, make eNode B or UPE wherein the either party obtain the other side's address information by CPS and/or MME, then by the signaling interface between eNode B and the UPE, directly initiate the tunnel to the opposing party and set up request, send oneself address information to the other side by this request, thereby set up the tunnel between eNode B and the UPE.After UE changes idle condition over to from state of activation, discharge the tunnel if desired, no matter which logic entity the initiator is, eNode B or UPE are after wherein the either party receives the notice that discharges user's face tunnel, by the signaling interface between eNode B and the UPE, directly initiate the tunnel to the opposing party and discharge request, the opposing party responds this request and discharges related resource, the relevant information in mark eNode B or deletion tunnel invalid to the tunnel between the UPE.

The present technique field personnel know, the 3G system evolved network architecture comprises from logical node: eNode B, CPS, eGSN etc., and eGSN is made up of UPE and two functional entitys of MME, whether MME separates as yet with UPE is not determined.And, multiple compound mode is arranged again between each logical node from physical node, such as, CPS and MME, UPE merge into a physical node, and eNode B is a physical node; Perhaps eNode B and CPS merge into a physical node, and MME, UPE merge into a mode such as physical node.

In order to make those skilled in the art person understand the present invention program better, below will be at the different compound mode of each logical node, the present invention is described in further detail with execution mode in conjunction with the accompanying drawings.

At first, with reference to 3G evolution network framework shown in Figure 4, MME is different physical nodes with UPE, and CPS also is different physical nodes with eNode B.

Under this network architecture,, need UPE and eNode B to understand the other side's address information mutually in order to set up the tunnel between eNode B and the UPE.And in network evolution, a MME can corresponding one or more UPE.In this case, need make wherein any understanding partner address of two user entity eNode B and UPE by means of CPS and/or MME, then, eNode B behind the acquisition partner address and UPE can send the tunnel to the opposing party and set up request, address information with oneself sends the other side to simultaneously, make the other side know the address of oneself, thereby set up the tunnel between eNode B and the UPE.

Based on the network architecture shown in Figure 4, describe the message flow that tunnel of the present invention is set up in detail below.

With reference to Fig. 5, Fig. 5 shows the realization flow of tunnel establishing method of the present invention, may further comprise the steps:

Step 501:UE is in the network attachment process or when idle condition enters state of activation, and the either party obtains the other side's address information among eNode B and the UPE.

ENode B or UPE can carry the address information of eNode B or UPE, thereby make the other side know the address information of oneself by means of the interacting message of CPS and/or MME in the message that sends.Concrete message and load mode will be described in detail later.

Step 502: get access to the eNode B of partner address information or UPE and oneself address information is sent to the other side by the signaling interface between them.

The present invention is the situation that has signaling interface between based on eNode B and UPE.After the either party knows the other side's address among eNode B and the UPE, just can directly send message to the other side, and bring the other side by this message oneself address information by this signaling interface.Like this, just can make eNode B and UPE understand the other side's address mutually.

Step 503:eNode B and UPE write down the other side's address information respectively, set up the tunnel between eNode B and the UPE.

With reference to Fig. 6, Fig. 6 is the message flow of tunnel establishing method first embodiment of the present invention:

In this embodiment, obtain the address information of UPE by foundation/activation PDP Context process MME, send the address information of UPE to CPS by RAB (RAB) process MME, then, send the address information of UPE to eNode B by Radio Resource reconfiguration course CPS again.Like this, eNode B just can be by the signaling interface between itself and the UPE, sends to UPE and sets up tunneled requests message, sends oneself address information to UPE by this message, thereby sets up the tunnel between eNode B and the UPE.Idiographic flow is as follows:

1.UE initiate to activate or set up the PDP Context request message to MME, require the IP that activates acquiescence to connect.

Be given to UPE 2.MME will activate or set up the PDP Context request, or MME sends similar this and set up the PDP Context request message to UPE, require UPE to set up PDP Context.

When MME and UPE were concerning of one-to-many, MME may need according to load balancing etc. UPE to be selected, and selects a suitable UPE to set up PDP Context.

3. set up the tunnel of UPE to Anchor if desired, the UPE transmission is set up the PDP Context request message and is set up the tunnel to Anchor; Or MME sets up the tunnel to Anchor transmission message.

If do not need to set up the tunnel of UPE, then next step can be entered directly to Anchor.

Set up the PDP Context response message to UPE or MME 4.Anchor return, Anchor sets up to the tunnel of UPE.

Activate or set up the PDP Context response message to MME 5.UPE return, can or set up the address information (, also needing the TEID that comprises that UPE distributes) that the PDP Context response message carries UPE in this activation as using GTP.In addition, MME also can go on foot the address information of understanding selected UPE from bottom-up information or from the 2nd.The address information of understanding selected UPE from bottom-up information is meant from the carrying of signaling and draws address information (as signaling bear is IP, promptly knows the address of UPE so from the source IP address of IP bag).

Give CPS 6.MME send RAB (RAB) assignment message, require to set up RAB.Carry the address information (information such as TEID that also may comprise GTP) of UPE in this message.

7.CPS sending the Radio Resource reconfiguration request message according to the Qos information in the RAB assignment message carries out Radio Resource to eNode B and reshuffles and (set up RRC and carried out once configuration before, therefore be to reshuffle), the address information that can carry UPE in this message; The address information of UPE also can be notified eNode B by CPS by other message.

8.eNode B disposes wireless channel, the address information (also may comprise other relevant informations, as TEID) of record UPE is returned the Radio Resource reconfiguration response message afterwards and is given CPS.

9.CPS after receiving the message that eNode B returns, initiate RB (radio bearer) and set up process.

10.RB after setting up, CPS returns RAB assignment response message and gives MME.

11. because eNode B has known the address of UPE, therefore can directly send and set up tunneled requests message, in this message, comprise the address information of eNode B to UPE.

12.UPE after receiving that request message is set up in the tunnel, set up respective resources, return to eNode B and set up tunnel response message.

13.UPE the address information of record eNode B, more new routing information.

14.UPE understand partner address mutually with eNode B, the tunnel has just been set up.

15. after the tunnel was set up, MME sent the activation PDP Context to UE and accepts message.

After the UE network attachment, the IP that UE has had acquiescence connects, and in carrying out business data transmission, may not need to carry out PDP again and activate, and only need finish the RAB assignment process, sets up the tunnel between eNode B and the eGSN.

Below with UE as called be that example describes, its message interaction process as shown in Figure 7:

1. there is downlink data to arrive Anchor (, otherwise may directly arrive UPE) if there is Anchor.

If, then in HSS, inquire about, send routing iinformation to HSS 2.Anchor do not know the residing UPE of UE; HSS sends to Anchor with Query Result by sending the routing iinformation acknowledge message.

3.Anchor data are sent to UPE according to routing iinformation.If Anchor does not exist, then downlink data can directly arrive UPE.

Because UE is in idle condition, UPE does not have the descending routing iinformation of UE.

4.UPE trigger the paging request, send PDU (protocol Data Unit) notification request message to MME, require MME paging UE, UPE can carry the address information of oneself in the paging request, connect residing UPE to prevent the IP that MME does not understand the acquiescence of UE; UPE can not carry the address information of oneself yet in the paging request, MME connects the address that residing UPE information is understood this UPE from the IP of the acquiescence of the UE of bottom-up information or record.

5.MME the inquiry residing TA of UE (tracking) zone.

6.MME in the paging of the residing TA of UE zone initiation, after UE receives paging, set up RRC (Radio Resource control) and connect, carry out NAS (Non-Access Stratum) operations such as page response and authentication ciphering to UE.

7. network-triggered UE initiates PDP context activation or service request, does not perhaps carry out other operations (such as, PDP Context request etc.) and directly carries out the RAB assignment process.

8. because data distributing is arranged, MME initiates RAB assignment process, the address information (if set up GTP tunnel, also needing to comprise information such as TEID) of carrying UPE by the RAB assignment request message.

Reshuffle (set up RRC before and carried out once configuration), the address information that can in this message, carry UPE 9.CPS carry out Radio Resource to eNode B according to the transmission of the Qos information in RAB assignment message Radio Resource reconfiguration request message; Perhaps the address information of UPE is notified eNode B (if set up GTP tunnel, also comprising information such as TEID) by CPS in other message.

10. other processes, such as, eNode B disposes wireless channel, and the address information (if set up GTP tunnel, also comprising information such as TEID) of record UPE is returned Radio Resource afterwards and is reshuffled response and RAB and respond etc.

11.eNode after B obtains the address information of UPE, initiate to set up tunneled requests and give UPE, the address information (, also comprising information such as TEID) of in this message, carrying eNode B if set up GTP tunnel.Like this, UPE can understand corresponding which PDP Context in this tunnel.

13.UPE new routing information more, the address information (, also comprising information such as TEID) of record eNode B if set up GTP tunnel.

14.eNode B and UPE have understood the other side's address information mutually, can set up the tunnel between Node B and the UPE.

15.UPE on the good tunnel of foundation, give eNode B, be responsible for sending to UE by eNode B with data distributing.

In the embodiment of foregoing description, eNode B obtains the address information of the UPE that CPS obtains by the Radio Resource reconfiguration course.In addition, eNode B can also obtain the UPE sign of UE record by UE in the network insertion process, then, according to the network configuration information of eNode B self record, know the UPE address that this sign is corresponding.

After UE adheres to, will select a UPE to serve UPE as it, UE writes down the sign of this service UPE.UE may change service UPE in moving process, if UE has changed TA (Tracking Area, tracking area), then can initiate the TA renewal process, and in this process, if changed UPE, UE can upgrade its UPE that carries sign.

In access procedure, if UE records service UPE sign, so in the process that inserts eNode B, just this sign (information such as TEID that can also have UPE to distribute) can be sent to eNodeB, eNode B obtains the address of UPE according to this sign, then, by the signaling interface between itself and the UPE, directly initiate tunnel establishment procedure to this UPE.

The detailed process that above-mentioned tunnel is set up is as shown in Figure 8:

1.UE the sign with the service UPE of its record in the network insertion process sends eNode B to.

ENode B obtains the address information of the UPE corresponding with this sign according to the configuration information of network.

2. other processes between each logic entity, such as, RRC set up, to UE authentication etc.

3.eNode B has understood the address information of UPE, just can initiate to set up tunneled requests and give UPE, the address information (if set up GTP tunnel, also comprising information such as TEID) of carrying eNode B in this message.Like this, UPE can understand corresponding which UE in this tunnel.

4.UPE after receiving that request message is set up in the tunnel, set up respective resources, return to eNode B and set up tunnel response message.

5.UPE new routing information more, the address information (, also comprising information such as TEID) of record eNode B if set up GTP tunnel.

6.eNode B and UPE have understood the other side's address information mutually, can set up the tunnel between Node B and the UPE.

7.UPE on the good tunnel of foundation, give eNode B, be responsible for sending to UE by eNode B with data distributing.

In the above among the embodiment of Miao Shuing, all be the address information of knowing UPE earlier by eNode B, by the signaling interface between itself and the UPE, set up the tunnel between them then.In the present invention, also can obtain the address information of eNode B by first UPE.Below this is elaborated.

With reference to Fig. 9, Fig. 9 is the message flow of tunnel establishing method the 3rd embodiment of the present invention:

In this embodiment, UE initiates RRC when setting up request, and eNode B adopts connection-oriented signaling bear to be forwarded to CPS this message, makes CPS from this message or obtain the address information of eNode B from the bottom carrying.Then, send the address information of eNode B to MME by CPS by initial direct-sending message, when UE need activate a PDP Context and sets up user's face tunnel, MME sends the address information of eNode B to UPE by activating/set up the PDP Context process, like this, UPE just can by and eNode B between signaling interface, set up and eNode B between the tunnel.Its idiographic flow is as follows:

Give eNode B 1.UE initiate the RRC request of setting up, eNode B adopts connection-oriented signaling bear to be forwarded to CPS this message, and CPS is from this message or can obtain the address of this eNode B from the bottom carrying.Setting up RRC between UE and the CPS afterwards is connected.

Give network 2.UE send NAS (Non-Access Stratum) message Attach Request (adhering to request) message, eNode B goes to CPS with it, CPS sets up the connection-oriented signaling bear with MME, as SCCP/M3UA/SCTP (SCCP/Message Transfer Part third level user adaptation layer/stream control transfer protocol), send to MME by initial direct-sending message, address information comprising eNode B, if desired, can also comprise that (this identification information can be produced by eNode B for the identification information of UE, issue CPS in the 1b step), the effect of this sign is to send the tunnel at UPE to set up request, and it is corresponding with which UE that eNode B can relate to this tunnel.

3. some other process, as authentication ciphering, UE initiates IMS (international mobile subscriber identification) registration, activates PDP context etc., and is irrelevant with the present invention, omits.When UE need activate a PDP Context, when setting up user's face tunnel, MME selects a UPE from the UPE pond, and this process not necessarily uses empty collimation mark to show.

4.MME send activation or set up the PDP Context request to UPE, wherein carry the eNode B address information of obtaining to UPE.

5.UPE by the eNode B address information of obtaining, initiate tunnel to this eNode B and set up request, wherein carry necessary tunnel and set up parameter (as TEID etc.), eNode B receives that the tunnel sets up request, distribute tunnel resource, configuration finishes the foundation request response of transmission tunnel, back to UPE.By this process, eNodeB and UPE understand partner address mutually, set up the tunnel.

6. after the tunnel was set up, UPE set up information to MME notice tunnel, sends activation or sets up the PDP context response to MME.

Except that above-mentioned embodiment illustrated in fig. 9, the address information of the eNode B that the present invention can also obtain CPS by the RAB assignment process sends UPE to.

The 4th embodiment with reference to tunnel establishing method of the present invention shown in Figure 10:

1.UE and after Radio Resource connection control foundation was finished between the CPS, UE sent Attach Request message to eNode B.

2.eNode the request of adhering to that B transmits UE to CPS, which eNodeB CPS knows this message from, thereby learns the address information of eNode.CPS can understand the address information of eNodeB by two kinds of methods: understand (method of learning above similar) from signaling bear from bottom message; Add the such IE (information element) in address of eNodeB in signaling, CPS reads the back and understands.

3. some other process, as authentication ciphering, UE initiates IMS (international mobile subscriber identification) registration, activates PDP context etc., and is irrelevant with the present invention, omits.

Give CPS 4.MME send RAB (RAB) assignment message, require to set up RAB.

5. some other process sends the Radio Resource reconfiguration request message as CPS according to the Qos information in the RAB assignment message eNode B is reshuffled (setting up RRC before and carried out once configuration, is to reshuffle therefore); ENode B disposes wireless channel, returns the Radio Resource reconfiguration response message afterwards; After CPS receives the message that eNode B returns, initiate RB (radio bearer) and set up process etc.

6.RB after setting up, CPS returns RAB assignment response message to MME, and the address information of carrying eNode B in this message.

7.MME after receiving, activate/set up PDP Context request message, the address information of in this message, carrying eNode B to the UPE transmission.

8.UPE the eNode B address information obtained of record, and initiate the tunnel by this address to eNode B and set up request is wherein carried necessary tunnel and is set up parameter (as TEID etc.).

9.eNode B receives tunnel foundation request, distributes tunnel resource, the request response was set up to UPE in the transmission tunnel after configuration finished.

10. by this process, eNode B and UPE understand partner address mutually, set up the tunnel.

11. after the tunnel was set up, UPE set up information to MME notice tunnel, sent to activate or set up PDP Context to respond to MME.

After the UE network attachment, the acquiescence IP connection of UE is based upon on certain UPE, MME generally can write down the address information of this UPE, and after UE transferred state of activation to from the free time, MME was because remain with the address of UPE, can get address information to UPE, (MME can begin only to keep the address of UPE, during will setting up the tunnel, generates other information with the UPE address information directly to utilize the RAB assignment process, as TEID, issue e Node B then together) send to eNode B.How address as for eNode B passes to UPE, can use top method (RAB assignment response or initial direct-sending message, at this moment initial direct-sending message has been exactly paging response (page response) or service Request (service request) or other message, be not attach request), MME obtains after the eNode B address information this address information being passed to UPE.When transmitting eNode B address information to UPE, MME not necessarily uses activate/create PDP context (activating/set up PDP Context) message, also can use other message or new message, as Route Update Request (routing update request) message etc.

If UE initiates the business that other non-acquiescence IP connect, then can set up new PDP context, then can rebulid the tunnel according to top description.

CPS is except can be used as one independently the physical node, can also and eNode B or MME be combined into a physical node.When eNode B and CPS were a physical node, the Signalling exchange between above-mentioned eNode B and the CPS was the inside story flow process of this physical node; When CPS and MME were a physical node, the Signalling exchange between above-mentioned CPS and the MME was the inside story flow process of this physical node.

After network attachment or after the communication, UE enters idle condition from state of activation, discharge RAB carrying if desired, then need to discharge the tunnel between eNode B and the UPE.

Based on the tunnel dispose procedure of the network architecture shown in Figure 4 as shown in figure 11:

1.UE transfer idle condition to from state of activation, discharge the tunnel if desired, discharge as calling out.Calling out the concrete initiation that discharges may be UE, also may be MME or CPS etc.

2. if MME initiate to discharge or UE notice MME when discharging, MME notice UPE discharges the tunnel of user's face.

Discharge request 3.UPE initiate the tunnel of user's face to eNode B, eNode B response also discharges related resource.Perhaps the first step is the dispose procedure of being initiated by CPS or eNode B, initiates the tunnel by eNode B to UPE and discharges request, and the UPE response also discharges related resource.(dischargeing eNode B simultaneously is connected with signaling between the UPE).

4. after the tunnel discharged, the UPE mark was invalid to the tunnel of eNode B, or the relevant information in deletion tunnel, and the tunnel discharges.

5. begin to discharge the signaling connection of chain of command, discharge the interface between the MME/CPS.

6.CPS discharging RRC with UE is connected.

7.RRC after connecting release, CPS initiates the Radio Resource dispose procedure to eNode B, request eNodeB discharges Radio Resource.

In above-mentioned flow process, also can discharge chain of command earlier and connect, and then discharge the connection of user's face.

The flow process that above-mentioned tunnel discharges is equally applicable to other network architectures, if some entity is merged into a node, then the signaling between these entities becomes inside story.

The process of setting up in tunnel has been described as physical node independently with MME, UPE in the above-described embodiments.Equally, the inventive method can also be applied to various network configuration, such as, CPS and eNodeB or MME are combined into a physical node, and MME, UPE are a situation such as physical node.If some entity is merged into a physical node, the signaling between these entities transfers inside story to so.

With reference to Figure 12, Figure 12 is the theory diagram of apparatus of the present invention:

This device comprises: evolution base station eNode B, chain of command server CPS, user entity UPE and Mobility Management Entity MME.

In this device, the either party carries out in the network attachment process or obtain the other side's address information when idle condition enters state of activation at UE among eNode B and the UPE, by the signaling interface between them oneself address information is sent to the other side then, eNode B and UPE write down the other side's address information respectively, set up the tunnel between eNode B and the UPE; When UE after network attachment is finished or when state of activation enters idle condition, either direction the other side sends the tunnel release command among MME and the CPS, after the other side receives orders, the invalid or relevant information of deleting this tunnel in the tunnel between mark eNode B and the UPE.

MME carries out in the network attachment process at UE, can obtain the address information of UPE by setting up or activating packet data protocol PDP Context process and UPE carries out information interaction.MME at UE when idle condition enters state of activation, can carry out information interaction by upgrading PDP Context process and UPE, obtain the address information of UPE, send the address information of UPE to CPS by the RAB assignment process then, send it to eNode B by CPS by the Radio Resource reconfiguration course again, thereby make eNode B know the address of UPE.In addition, the identification information of the UPE that eNode B also can write down in access procedure by UE, the configuration information of Network Search, the address that obtains the UPE corresponding with this identification information.

ENode B can send its address information to CPS by initial direct-sending message, send this address information to MME by CPS by initial direct-sending message or by RAB assignment response message then, and then send it to UPE by activating or setting up the PDP Context request message, thereby make UPE know the address information of eNode B by MME.

Like this, after the either party gets access to the other side's address among eNode B and the UPE, then can send oneself address information to the other side, after both sides are known the other side's address mutually by the signaling interface between them, can set up the tunnel, use for user plane data transfer.

When UE after network attachment is finished or when state of activation enters idle condition, the either party initiates the tunnel release command by the signaling interface between them to the other side among eNode B and the UPE, after the other side receives this order, delete tunnel and related resource between them, perhaps the mark tunnel is invalid.

The tunnel is set up and the concrete message flow that discharges can be with reference to the description among the inventive method embodiment, and can not repeat them here as required by suitable message transmission eNode B and UPE address information when practical application.

By above embodiment as seen, the present invention is when setting up the tunnel, other entities by means of chain of command carry out the information transmission, make any other relevant information of understanding the other side's address and setting up the tunnel in the different entities of user's face, initiate to set up tunneled requests by the signaling interface between two entities then, and send oneself address to the other side by this request, make the other side also understand the address of oneself, thereby set up the tunnel, guarantee the transmission of business datum.Because each logical node in the evolution architecture can combination in any, as full separation, perhaps CPS/MME/UPE merges, and perhaps CPS/eNode B merges, MME/UPE separates; Compound modes such as perhaps CPS/eNode B separation, MME/UPE merging, so the present invention is not limited to above embodiment, the present invention goes for the various network architecture.

Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.

Claims

1. tunnel establishing method in the evolution network framework, described evolution network framework comprises logic entity: evolution base station eNode B, chain of command server CPS, user entity UPE and Mobility Management Entity MME is characterized in that described method comprises step:

2. method according to claim 1 is characterized in that, described steps A comprises:

3. method according to claim 1 is characterized in that, described steps A is specially:

4. method according to claim 3 is characterized in that, described eNode B carries out Signalling exchange by CPS and MME, and the step of obtaining the address information of UPE comprises:

5. method according to claim 4 is characterized in that, the step that described MME obtains the address information of UPE by activation packet data protocol PDP Context process comprises:

UE sends to MME and activates the PDP Context request message;

6. method according to claim 4 is characterized in that, described CPS comprises the step that the address information of described UPE sends eNode B to by triggering the Radio Resource reconfiguration course:

7. method according to claim 1 is characterized in that, described steps A is specially:

8. method according to claim 7 is characterized in that, described UE is in the network attachment process or when idle condition enters state of activation, and UPE carries out Signalling exchange by CPS and MME, and the step of obtaining the address information of eNode B comprises:

CPS sends the address information of the eNode B that obtains to MME;

9. method according to claim 8 is characterized in that, described CPS comprises by the step that initial direct-sending message obtains the address information of eNode B:

Send Attach Request message to eNode B during the UE access network;

10. method according to claim 8 is characterized in that, described CPS comprises by the step that initial direct-sending message obtains the address information of eNode B:

UE initiates the RRC request of setting up and gives eNode B;

11., it is characterized in that described CPS is specially the step that the address information of the eNode B that obtains sends MME to according to claim 9 or 10 described methods:

12., it is characterized in that described CPS is specially the step that the address information of the eNode B that obtains sends MME to according to claim 9 or 10 described methods:

13. method according to claim 1 is characterized in that, described step B is specially:

14. method according to claim 1 is characterized in that,

15. tunnel method for releasing in the evolution network framework, described evolution network framework comprises logic entity: evolution base station eNode B, chain of command server CPS, user entity UPE and Mobility Management Entity MME, it is characterized in that described method comprises step:

16. method according to claim 15 is characterized in that, described method further comprises:

Discharge the interface between CPS and the MME;

Discharge the Radio Resource control connection between CPS and the UE;

17. according to claim 15 or 16 described methods, it is characterized in that,

18. the foundation and the releasing device in tunnel in the evolution network framework, comprise logic entity: evolution base station eNode B, chain of command server CPS, user entity UPE and Mobility Management Entity MME is characterized in that:

19. device according to claim 18 is characterized in that,

20. according to claim 18 or 19 described devices, it is characterized in that,

21. according to claim 18 or 19 described devices, it is characterized in that,

22. according to claim 18 or 19 described devices, it is characterized in that,

23. device according to claim 18 is characterized in that,