CN101060416B

CN101060416B - Method for establishing and updating the tunnel transmission

Info

Publication number: CN101060416B
Application number: CN200610074592A
Authority: CN
Inventors: 王弘; 孙春迎; 李小强; 许丽香; 朱彦民; 崔成豪
Original assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Current assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Priority date: 2006-04-21
Filing date: 2006-04-21
Publication date: 2010-05-12
Anticipated expiration: 2026-04-21
Also published as: CN101060416A

Abstract

The method for MBMS business between RNC and GGSN comprises: GGSN sends 'Session begins request' message to SGSN; SGSN sends 'Session begins response' message to GGSN; the latter sends 'Session begins request' to RNC; the latter sends 'Session begins response' message including MBMS user plane message to SGSN; the latter sends message including MBMS user plane message to GGSN. This invention can reduce transmission delay.

Description

Set up and upgrade the method for tunnel transmission

Technical field

The present invention relates to mobile communication, particularly set up and upgrade the method for a tunnel transmission.

Background technology

Existing third generation partner plan (hereinafter to be referred as 3GPP) structure as shown in Figure 1.Be description below to Figure 13 GPP system configuration.

101 E-PDN among Fig. 1 (Extern Packet Data Network) are outside public data networks, and various types of bag data are provided.The bag data are transferred to 103 gateway general packet radio service (is GPRS hereinafter to be referred as GPRS) support nodes (is GGSN hereinafter to be referred as Gateway GPRS Support Node) by external network by predetermined interface 102.Interface 102 is the interfaces between external network and the GGSN.After GGSN receives data, data are sent to 105 Serving GPRS Support Nodes (hereinafter to be referred as SGSN) by interface 104.Connect by the tunnel between GGSN and the SGSN, interface 104 meets the agreement of gn interface, and the standard of this interface is arranged in TS25.413.After SGSN receives data, need send to 107 service wireless network controllers (hereinafter to be referred as SRNC) to data.In WCDMA, be to connect by the tunnel between SGSN and the RNC, if also do not set up the tunnel of transfer of data, SGSN is by the Data-carrying between 106 transmission message foundation of predetermined interface and the SRNC, if set up the tunnel, SGSN sends to SRNC to data by 106 interfaces.Interface 106 meets the agreement of Iu interface, and the standard of Iu interface comprises the agreement RNSAP agreement of control plane and the agreement of datum plane.The RNSAP agreement comprises the signaling process of setting up datum plane, and datum plane has been stipulated the form in the data of Iu interface transmission.After 107 SRNC receives data, need send to 109Node B to data.If the bearer context for data transmission between SRNC and the Node B is not also set up, SRNC send by predetermined interface 108 that message are set up and the base station between Data-carrying, and send message and set up Radio Link between base station and UE to UE.After having set up Data-carrying, SRNC is responsible for packing data is become predetermined form, and sending to base station 109,108 interfaces by 108 interfaces is Iub interface, and the standard of Iub interface comprises the agreement NBAP agreement of control plane and the agreement of datum plane.The NBAP agreement has comprised the signaling process of setting up the Iub interface Data-carrying, and the agreement of datum plane has been stipulated the form of the data of Iub interface transmission.109 base stations send to 110UE to the Radio Link of data by air interface.

Multimedia broadcasting and multicast service (hereinafter to be referred as MBMS) are a new business of third generation partner plan (hereinafter to be referred as 3GPP) definition.The MBMS business is a kind of business of unidirectional point-to-multipoint, and the maximum characteristics of this business are that it can effectively utilize Radio Resource and Internet resources.

Fig. 2 has described the system configuration of MBMS, and the MBMS network configuration is based on the GPRS core net, and has increased new network element.Be description below to Fig. 2 MBMS system configuration.

201 broadcasting and multicast service center (being called for short BM-SC) are the professional control centres of MBMS system.202 Gateway GPRS Support Nodes (be called for short GGSN) and 203 Serving GPRS Support Nodes (abbreviation SGSN) have constituted the transmission network of MBMS business, for the transmission of data provides route.Interface between 202GGSN and the 203SGSN is the 209Gn interface, and interface specification is definition accordingly in 3GPP.The 204th, UMTS Terrestrial radio access network (being called for short UTRAN) provides Radio Resource for MBMS serves on the interface aloft.Being the 208Iu interface between 204UTRAN and the 203SGSN, is the interface between Access Network and the core net, and corresponding definition is also arranged in 3GPP.205 subscriber equipmenies (being called for short UE) are the terminal equipments that is used for receiving data.206 attaching position registers (being called for short HLR) are preserved and subscriber-related data, and services such as subscription authentication can be provided.

Terminal will receive the MBMS business, and at first terminal need add this MBMS business.The process that adds sends signaling by terminal to SGSN, and signaling comprises the sign of this business, information such as the ability of UE, SGSN will preserve the information of UE, with the information of MBMS, if this user is first user who adds this MBMS above the SGSN, SGSN sends the signaling that requires adding to GGSN.GGSN last in store all to receive the sign of the downstream node SGSN of MBMS business, the last in store downstream node that will receive the MBMS business of SGSN, the downstream node that SGSN preserves has two kinds, a kind of is the sign that the RNC at the user place that the RRC connection is arranged that adds the MBMS business is arranged, and a kind of is the RA tabulation that adds the idle pulley of MBMS business.At MBMS at first, network sends message to terminal, and notifying MBMS service begins, and Fig. 3 is that the MBMS data will begin transmission, how to set up the signaling process of datum plane.301 steps, BM-SC sends signaling, and " Session begins request information and gives GGSN; comprise professional sign in the message; service identification is used for distinguishing different MBMS business; message can also comprise MBMS carrying COS; the carrying service is meant that this MBMS business is broadcasting service or multicast service; to broadcasting service, what the channel of air interface used is the common signal channel of point-to-multipoint, to multicast service, the channel of air interface can use the common signal channel of point-to-multipoint, can also use point-to-point dedicated channel, and the type of channel decides according to the number of users that needs in the sub-district receive the MBMS business." Session begins can also comprise in the request information characteristic of Session, such as the indication of coverage, operation quality requirement.

302 steps, GGSN sends response message to BM-SC, represents that the message of 301 steps is received.GGSN has preserved a downstream node tabulation, and what this tabulation was preserved is all signs that need receive the SGSN of MBMS business.

303 steps, GGSN sends " MBMS Session begins " message to all SGSN in the downstream node tabulation, and message comprises professional sign TMGI, and message can also comprise MBMS carrying COS.Session begins can also comprise in the request message characteristic of Session, such as the indication of coverage, operation quality requirement.If MBMS carrying COS is a broadcasting service, SGSN will set up the MBMS bearer context, preserves the characteristic of session.

304 steps, SGSN sends response message " MBMS Session begins response " and gives GGSN, comprises transport layer information in the message, and transport layer information comprises IP address and the tunnel mark TEID of user plane SGSN.The tunnel protocol that uses between SGSN and the GGSN is the GTP agreement, and to giving a tunnel, SGSN distributes a unique sign TEID, the path of unique identification data transmission.Because the MBMS business is to have only descending data, so SGSN need be the TEID of a downlink data receiving of each MBMS traffic assignments, and IP address and the TEID of SGSN are sent to GGSN, and the TEID that GGSN just uses SGSN to distribute sends the MBMS data to SGSN.

305 steps, the last information that will preserve MBMS user of SGSN also will be preserved the MBMS loaded information.User profile is after the user adds the MBMS business, just is kept at SGSN and above the GGSN.User profile above the SGSN comprises the multicast address of MBMS business, APN, the IP address of SGSN and GGSN, user's sign IMSI.MBMS beared information above the SGSN comprises the multicast address of MBMS business, APN, and the temporary mark TMGI of MBMS business, the downstream node tabulation also comprises Routing Area (hereinafter to be referred as RA) tabulation.Below RNC, there is the user of a connection mode to add this MBMS business, SGSN just preserves RNC in the downstream node tabulation address.The RA tabulation is meant in this RA to have at least the user of an idle pulley to add this MBMS business.RNC in the downstream node tabulation needs to receive " MBMS Session begins " message, all RNC below the RA tabulation also need to receive " MBMS Session begins " message, according to downstream node tabulation and RA tabulation, SGSN sends " MBMS Session begins " message and gives RNC.Message comprises the temporary mark TMGI of MBMS business, quality information, information such as coverage.

306 steps, if RNC need receive the MBMS business, RNC sends response message " MBMSSession begins response " and gives SGSN, if RNC is connected on a plurality of SGSN, that RNC may receive that a plurality of 305 MBMS Session begins request message, RNC selects one of them SGSN, sends successful response message. comprise RNC in the successful response message to the sign of the TEID of Iu user plane distribution and the IP address of RNC.

307 steps, RNC is the Radio Resource that UE sets up the MBMS transmission that needs.

When business is carried out in the process, if variation has taken place in the RA tabulation in the downstream node that SGSN finds to preserve, SGSN initiation MBMS Session renewal process.401 steps are the same with 301 to 306 steps to 406 steps, and expression MBMS has begun transmission.

407 steps, certain user who adds the idle pulley of MBMS business has moved to a new RA, this user is that first adds the user of this MBMS business below this RA, SGSN need upgrade the RA tabulation of preservation, and send " MBMS Session renewal " message to RNC, comprise " Session is new logo more " in the message, be used for identifying the process that session upgrades, message also comprises the RA sign of the reception MBMS business that increases newly, also comprises the RA sign that does not need to receive the MBMS business.

409 steps, RNC has received this message, if the RA sign of the sub-district of RNC control identifies equally with the RA that receives the MBMS business that do not need that comprises in 408 message, RNC will discharge the MBMS resource of sub-district.RNC sends response message to SGSN then, comprises the Session new logo more in 408 message in the message.

If the RA of the sub-district of RNC sub-district sign is the same with the RA sign of the reception MBMS business that increases newly that comprises in 408 message, RNC can add up number of users, if there is the user will receive the MBMS business, RNC will distribute a descending TEID for the Iu user plane, RNC sends response message to SGSN then, comprise the Session new logo more in 408 message in the message, also comprise the address of RNC and the TEID of MBMS traffic assignments for this reason.

Common PS business, at first need to set up Packet Data Protocol (hereinafter to be referred as PDP) context, after PDP sets up successfully, tunnel between SGSN and the GGSN has just been set up well, then when data begin to send, data directly are transferred to above the SGSN, and SGSN or UE initiate to set up the path of Data-carrying.Fig. 5 is a signaling process of setting up PDP Context.The state of the PDP Context that SGSN preserves above can be Active or Inactive, and when UE enters the PMM-IDLE state, the state of the PDP Context that SGSN preserves has above just entered the Inactive state.If the Active state means that data can send, if the inactive state means that SGSN need initiate the process of paging.

501 steps, terminal sends and " activates the PDP Context request information and give SGSN; comprise network layer access point indication (Network layser Service Access PointIdentifier; hereinafter to be referred as NSAPI) in the message; the type of PDP; the address of PDP, access point name (hereinafter to be referred as APN), the quality of service requirement Qos of requirement etc.NSAPI is that the user distributes, and is used for identifying a PDP Context.The address that the address of PDP is used to refer to a static state of needs distribution still is dynamic address, if terminal needs a dynamic address, the information element pdp address in the terminal message is set to sky.APN is that terminal is used for selecting one at professional or at the access point of specific data network, the Qos of requirement is the Qos characteristic of terminal expectation.

502 steps, SGSN selects corresponding GGSN according to APN, if dynamic address of demanding terminal, SGSN allows GGSN give terminal distribution a dynamic address, SGSN can according to the Qos of demanding terminal, give the Qos of a new negotiation of terminal definitions according to present loading condition, SGSN sends message and " sets up the PDP Context request " to GGSN then, comprise the PDP type in the message, pdp address, TEID, APN, information such as the Qos of negotiation.GGSN can find terminal to want data network or certain business that inserts according to APN, and TEID is the Tunnel Identifier that SGSN distributes, and is used for receiving the data that send from GGSN.

503 steps, GGSN sets up the table of a new PDP Context, set up the access point of a user plane for the upstream data that receives the SGSN transmission, at present, what user plane used is tunnel protocol, GGSN will distribute a TEID for user plane, SGSN can adjust the newly-built PDP Context of Qos.GGSN to the last .GGSN of TEID that the upstream data of this PDP Context correspondence sends to the GGSN distribution according to present load, preserves the sign IMSI of UE, the Qos information of negotiation, APN, information .GGSN such as the address of SGSN send " setting up the PDP Context response " message then and give SGSN, comprise the address of GGSN in the message, TEID, pdp address, information such as the Qos of negotiation.

504 steps, address and GGSN that SGSN preserves GGSN are the TEID that upstream data distributes, preserving GGSN is the address of terminal distribution.Send " activating the PDP Context response " message then and give terminal, comprise the PDP type in the message, pdp address, information such as the Qos of negotiation.

Fig. 6 is the signaling process of setting up transfer of data that network is initiated.

601 steps, data directly send to SGSN by the tunnel between GGSN and the SGSN, if the state of PDP is inactive, SGSN initiates paging.SGSN sets up the data path of Iu interface, and data path distributes a sign (RAB sign) for this reason,

602 steps, SGSN has received the packet of certain PDP Context correspondence, and SGSN finds that the user is in the PMM-Idle state, and SGSN sends beep-page message to RNC, comprises user ID IMSI in the message, P-TMSI, the indication of Routing Area.

603 steps, RNC sends beep-page message to terminal, comprises the sign of UE in the message, IMSI or P-TMSI.

604 steps are set up RRC and are connected between UE and the RNC.

605 steps, UE sends " service request " message and gives SGSN, and message comprises P-TMSI, COS etc.COS indication COS is data or signaling.If data, SGSN will set up the resource of PDP Context, carries out following step.

606 steps, SGSN sends message " RAB configuring request " message and gives RNC, comprises the RAB sign that will set up in the message, RAB information, the information of user plane.RAB information comprises flow grade (traffic class), maximum Bit data speed, maximum packet size etc.The information of the user plane that defines in present agreement is meant that the address of SGSN and SGSN are the TEID that upstream data distributes.

607 steps, RNC sets up Radio Resource, comprises setting up with between the base station, the Radio Resource between RNC and the terminal, this process is omitted.

608 steps, RNC preserves RAB information, is downlink data distribution T EID, sends to SGSN by message " RAB configuration response " message then, and message comprises RAB sign, the address of RNC and TEID.

609 steps, data begin by the tunnel transmission between SGSN and the RNC.

UE also can initiatively initiate to set up the signaling process of transfer of data, and the flow process that UE initiates is the same with 604 to 609 steps, does not have the paging of 601 to 603 steps.

If data do not send for some time, RNC can initiate the process that RAB discharges, and Fig. 7 is present RAB dispose procedure.

701 steps, RNS sends " RAB discharges request message " and gives SGSN, comprises the RAB sign that will discharge in the message.

702 steps, SGSN sends message " RAB configuring request " message and gives RNC, comprises the RAB sign that will delete in the message.

703 steps, the resource of RNC releasing wireless loading.

704 steps, RNC sends " RAB configuration response " message and gives SGSN.The RAB sign that can comprise release in the message, GTP upstream data sequence number SNU, GPT downlink data sequence number SND.SGSN preservation SNU and SND use after being.

Connection discharges if RNC sends RRC, and RNC can initiate the process that the Iu interface discharges, and Fig. 8 is the process that the Iu interface discharges.The Iu interface has discharged, and that has all discharged about the data path on all Iu interfaces of this user.

801 steps, RNC transmission RRC connection discharges, and perhaps detecting needs to discharge Radio Resource, the RNC transmission " Iu interface release request information is given SGSN, and message comprises release cause, and the reason of release can be that Operation and Maintenance is initiated, or the user does not have activity etc.

802 steps, SGSN sends " Iu release command " message and gives RNC.

803 steps, if also not release of RRC, RNC sends the individual SGSN of giving of " the Iu interface discharges and finishes " message after RRC connects release.Comprise the RAB sign in the message, GTP upstream data sequence number SNU, GPT downlink data sequence number SND.If PDP Context is deletion not, SGSN preservation SNU and SND use after being.

At present, 3GPP organizes the optimization of carrying out user plane, the purpose of optimizing is to be connected to RNC from GGSN between the user plane, do not need to pass through SGSN, signaling plane still keeps original path, and as shown in Figure 9, transfer of data originally is transferred to SGSN from GGSN, SGSN is transferred on the RNC then, and the transmission of data will be through twice tunnel transmission.The notion in a tunnel, be exactly data be by a tunnel transmission between GGSN and the RNC.SGSN only is responsible for the transmission of the signaling between GGSN and the RNC.Utilize present signaling process, success can not be set up in the tunnel of the user plane between GGSN and the RNC.

Summary of the invention

The purpose of this invention is to provide a kind of method of setting up and upgrading a tunnel transmission, can between GGSN and RNC, set up a direct user plane and transmit data.

According to an aspect of the present invention, the tunnel between a kind of RNC of foundation and the GGSN comes the method for MBMS transmission business, comprises step:

GGSN sends " MBMS Session begins " message and gives SGSN;

SGSN sends " MBMS Session begins response " message and gives GGSN;

SGSN sends " MBMS Session begins " message and gives RNC;

RNC sends " MBMS Session begins response " message and gives SGSN, comprises the TEID that RNC address and RNC distribute in the message;

SGSN sends message to GGSN, comprises the TEID that RNC address and RNC distribute in the message.

According to a further aspect in the invention, a kind of method of deleting the tunnel of MBMS transmission data between RNC and the GGSN comprises step

RNC sends to SGSN to the information of deletion MBMS user plane;

SGSN sends to GGSN to the information that RNC will delete the MBMS user plane, and wherein, the information of MBMS user plane comprises address and the tunnel mark TEID of RNC.

According to a further aspect in the invention, the tunnel between a kind of RNC of foundation and the GGSN comes the method for transmitting data service, comprises step

GGSN sends to SGSN to the TEID of GGSN address and its distribution;

SGSN sends to RNC to the TEID of GGSN address and its distribution;

RNC sends to SGSN to the TEID of RNC address and its distribution;

SGSN sends to GGSN to the TEID of RNC address and its distribution.

The present invention can be used for common PS business, when being used for common PS business, user plane two-way, be that RNC is the TEID of downlink data distribute data path, and the TEID that downlink data is used is notified to GGSN, GGSN also needs to be up data allocations TEID, and the TEID of upstream data is notified to RNC. like this, could set up the address of .GGSN to a two-way user plane and GGSN is that the TEID that user plane distributes can be notified to RNC by existing signaling procedure, the address of RNC and RNC are that the TEID that user plane distributes sends to SGSN by existing message, need then to send to GGSN. from SGSN by a new message

Description of drawings

Fig. 1 is existing 3GPP system configuration;

Fig. 2 is the logical network equipment drawing of present MBMS business;

Fig. 3 is the signaling process that present Session begins;

Fig. 4 is the signaling process that present Session upgrades;

Fig. 5 is the signaling process that present PDP activates;

Fig. 6 is the signaling process that present downlink data begins to transmit;

Fig. 7 is the signaling process that present RAB discharges;

Fig. 8 is the signaling process of present release Iu interface;

Fig. 9 is the notion in a tunnel;

Figure 10 is among the present invention, sets up the signaling process in a tunnel for MBMS;

Figure 11 is among the present invention, the signaling process in update MBMS tunnel;

Figure 12 is in the first embodiment of the invention, sets up the signaling process in data service tunnel;

Figure 13 is the signaling process of the deletion RAB in the first embodiment of the invention;

Figure 14 is in the first embodiment of the invention, the signaling process of deletion Iu interface;

Figure 15 is second embodiment among the present invention;

Figure 16 is in the second embodiment of the invention, the signaling process of network initiated data service tunnel;

Figure 17 is the 3rd embodiment among the present invention;

Figure 18 is in the third embodiment of the invention, and network initiates to set up the signaling process of service tunnel;

Figure 19 is in the third embodiment of the invention, and UE initiates to set up the signaling process of service tunnel;

Figure 20 is in the first embodiment of the invention, the motion flow of GGSN;

Figure 21 is in the first embodiment of the invention, and the network initiated data tunnel is set up, the motion flow of SGSN;

Figure 22 is in the second embodiment of the invention, the motion flow of GGSN;

Figure 23 is in the second embodiment of the invention, and the network initiated data tunnel is set up, the motion flow of SGSN;

Figure 24 is in the third embodiment of the invention, the motion flow of GGSN;

Figure 25 is in the third embodiment of the invention, and the network initiated data tunnel is set up, the motion flow of SGSN;

Figure 26 is in the third embodiment of the invention, and UE initiates data tunnel and sets up the motion flow of SGSN.

Embodiment

Figure 10 is among the present invention, and MBMS is professional to begin, and sets up the signaling process in the tunnel between GGSN and the RNC.

1001 to 1007 steps are the same with 301 to 307 steps.

Carry out 1008 steps of the present invention then, after 1006 steps, just can carry out 1007 steps.SGSN sends message " the MBMS user plane upgrades indication " and gives GGSN, and the address and the RNC that comprise RNC in the message are the TEID that user plane distributes.The address of RNC is the IP address that is used for receiving user plane data above the RNC, is the address of transport layer, and the present invention is called the RNC address.GGSN is kept at information in the MBMS context, and address and the TEID according to RNC sends the MBMS data to this RNC then.The message format of " the MBMS user plane upgrades indication " is as follows:

The MBMS user plane upgrades indication:

The MBMS user plane set up

The RNC address

>>TEID

The TEID that also can comprise a plurality of RNC address and its distribution in " the MBMS user plane upgrades indication " message.SGSN receives " MBMS Session begin response " message from a plurality of RNC, and SGSN is included in the address of a plurality of RNC and TEID and sends to GGSN in a piece of news.1007 message also can have response message, after GGSN receives, sends a response message to SGSN, and expression GGSN has successfully received 1007 message.

Figure 11 is the process that Session upgrades.1101 to 1108 steps are the same with 401 to 408 steps.

1109 steps, RNC has received this message, if the RA sign of the sub-district of RNC control identifies equally with the RA that receives the MBMS business that do not need that comprises in 1108 message, RNC will discharge the MBMS resource of sub-district.RNC sends response message to SGSN then, Session new logo more in the message, also comprise the address of the RNC that will delete and the TEID of MBMS traffic assignments for this reason, if having preserved address and the RNC of RNC on the SGSN is the TEID that MBMS distributes, the address and the TEID that also can not comprise RNC in 1109 the message, SGSN can know address and the TEID of RNC according to the information of oneself preserving.

If the RA of the sub-district of RNC sub-district sign is the same with the RA sign of the reception MBMS business that increases newly that comprises in 1108 message, RNC will distribute a descending TEID for the user plane of MBMS business, RNC sends response message to SGSN then, comprise more new logo of Session in the message, also comprise the address of the RNC that receives the MBMS business and the TEID of MBMS traffic assignments for this reason.

1110 steps, SGSN sends " the MBMS user plane upgrades indication " message and gives GGSN, the address and the RNC that can comprise the RNC of needs reception MBMS business in the message are the TEID of MBMS traffic assignments, after GGSN receives, this RNC is joined corresponding downstream node, and beginning sends the MBMS data to the TEID of RNC correspondence.Can also comprise address and the TEID that does not receive the RNC of MBMS business at needs in " the MBMS user plane upgrades indication " message, after GGSN received, this RNC of deletion from downstream node did not send the MBMS data at the TEID to this RNC correspondence.The form of message is as follows:

The MBMS user plane upgrades indication:

The deletion the MBMS user plane

The RNC address

>>TEID

User under RNC finds to control has no talent and needs to receive the MBMS business, RNC can send that " MBMS RAB discharges request information and gives SGSN; SGSN sends " MBMS RAB releases " response message and gives RNC; confirm the release of MBMS user plane; in the present invention; SGSN receives " after the MBMSRAB release request information, SGSN will send response message on the one hand to RNC, to send " the MBMS user plane upgrades indication " message on the one hand and give GGSN, comprise the address of the RNC that will delete and the TEID that it distributes in the message.

Figure 12 is that the present invention is about setting up first embodiment in general data business data transmission tunnel to Figure 14.In this embodiment, the signaling process that PDP activates is the same with present signaling process, see shown in Figure 5, in the process that activates PDP, it is the TEID that downlink data distributes that GGSN has obtained SGSN, simultaneously, it is the TEID that upstream data distributes that SGSN has also obtained GGSN, and is kept in the PDP Context.This process realizes by 502 steps and 503 steps.When UE has changed SGSN, SGSN need be the address of new SGSN and TEID notice GGSN, and therefore, the address of the SGSN at the in store always UE of GGSN place and SGSN are the TEID that downlink data distributes.

Figure 12 is in embodiment 1, when having data to send, sets up the signaling process of data transmission path when descending.

Because it is the TEID that downlink data distributes that GGSN has known the address of SGSN and SGSN, so downlink data directly arrived SGSN, and SGSN receives 1201 packet, send beep-page message to RNC.RNC sends beep-page message again to UE, and UE receives beep-page message, sets up RRC and connects, and sends service request information then to SGSN, and 1201 steps are existing signaling procedures to 1205 steps, and is the same with 601 to 605 step, omits.

1206 steps, after SGSN received service request, if the type of service request is data, SGSN is the PDP Resources allocation for this reason.SGSN sends message " RAB configuring request " message and gives RNC, comprises the RAB sign that will set up in the message, RAB information, the information of user plane.RAB information comprises flow grade (traffic class), maximum Bit data speed, maximum packet size etc.The information of the user plane that defines in present agreement is meant that the address of SGSN and SGSN are the TEID that upstream data distributes, in the present invention, because set up the data path between GGSN and the RNC, and the in store GGSN of SGSN and GGSN are the TEID that upstream data distributes, therefore the information of the user plane in 1206 the message is the address of GGSN and the TEID that GGSN distributes.

1207 steps, RNC sends message for Node B and UE, sets up radio bearer, and process is the same with present process, and therefore emphasis of the present invention omits in network portion.

1208 steps, RNC preserves RAB information, is downlink data distribution T EID, sends to SGSN by message " RAB configuration response " message then, and message comprises RAB sign, the address of Radio Access Network RNC and TEID.The address of RNC is the IP address that downlink data receives, and TEID is the Tunnel Identifier of downlink data interface.

1209 steps, after SGSN receives message, preserve the address of RNC and the TEID that RNC distributes, and RNC address and TEID are sent to GGSN by 1209 steps, message can be utilized existing message, also can be a new message " user plane update request ", comprise address and the TEID of the RNC of downlink data reception in the message, can also comprise the RAB sign in the message.GGSN preserves RNC in PDP Context address and RNC are the TEID that downlink data distributes, if the tunnel sequence number SND that uses when being kept at last DTD on the SGSN, SNU also may comprise tunnel upstream data sequence number SNU, SND in 1209 the message.The form of " user plane upgrades indication " message is as follows:

User plane upgrades indication:

The user plane information set up

RAB identifies (optional)

The RNC address

>>TEID

>>SND

>>SNU

Can also comprise the data that sent to above the SGSN in 1209 the message.If data volume is a lot, can send to GGSN by the tunnel.

The message of 1210 steps " user plane upgrades response " is the response message of 1209 message.If consider that the signaling transmission between SGSN and the GGSN is very reliable, 1209 message can not have response message yet.

1211 steps, data begin by the tunnel transmission between RNC and the GGSN.

Figure 12 is the signaling process of the data service tunnel foundation that network is initiated among first embodiment, and UE also can initiate the signaling process that the data service tunnel is set up, and the UE process of transmitting does not comprise 1201 to 1203 step, and other step is the same with the process that network is initiated.

Figure 13 is in first embodiment, the RAB dispose procedure.

1301 steps if RNC finds there is not data activity for a long time, can be initiated the dispose procedure of RAB, and RNC sends message " RAB discharges request " and gives SGSN, comprises the sign of the RAB that will discharge in the message, the reason of release.

1302 steps, because now data are by transmitting on the tunnel between GGSN and the RNC, therefore, SGSN need allow GGSN know will to discharge the user plane between certain and the RNC, SGSN sends message " user plane update request " and gives GGSN, and message name can be other.Comprise an indication of user plane in the message, if comprised the RAB sign in the message of 1209 steps, then in 1302 steps, can comprise the RAB sign that to delete, if do not comprise the RAB sign in 1209 steps, can utilize existing NASPI to indicate the user plane that to delete, because NSAPI and user plane have relation one to one, and GGSN preserved NASPI, so also can delete user plane between GGSN and the RNC with NSAPI.In addition, also can SGSN the sign of the notice GGSN TEID that will delete and the address information of RNC.Can also comprise the reason that will discharge in the message of 1302 steps.

The message of 1303 steps " user plane upgrades response " is the response message of 1302 message.If consider that the signaling transmission between SGSN and the GGSN is very reliable, 1302 message can not have response message yet.

1304 steps, after receiving 1301 message, SGSN just sends message " RAB configuring request " and gives RNC, comprises the RAB sign that will discharge in the message.1304 message and 1302 message do not have absolute sequencing.

1305 steps, RNC initiates the process that radio bearer discharges: omit.

1306 steps, RNC sends " RAB configuration response " message and gives SGSN, and message comprises the RAB sign that will discharge, and also may comprise tunnel upstream data sequence number SNU, GPT downlink data sequence number SND.If PDP Context is deletion not, SGSN preservation SNU and SND use after being.

Figure 14 is in first embodiment, the process that the Iu interface discharges.

1401 steps, RNC sends the RRC connection and discharges, and perhaps detecting needs to discharge Radio Resource, RNC sends " the Iu interface discharges request ", requires to discharge to give SGSN, shows release cause, the reason that discharges can be that Operation and Maintenance is initiated, or the user does not have activity etc.

1402 steps, SGSN sends message " user plane discharges request " and gives GGSN, tell GGSN to discharge and RNC between all connections.GGSN discharges with this subscriber-related signaling and connects and resource.

The message of 1403 steps " user plane discharges response " is the response message of 1402 message.If consider that the signaling transmission between SGSN and the GGSN is very reliable, 1402 message can not have response message yet.

1404 steps, SGSN sends " Iu release command " message and gives RNC, comprises the RAB sign that will discharge in the message.1404 message and 1402 message do not have the sequencing of decision.

1405 steps, RNC sends the individual SGSN of giving of " the Iu interface discharges and finishes " message after RRC connects release.Can comprise the RAB sign in the message, also have the sequence number of transfer of data, sequence number shows the order that data are transmitted in the tunnel, and upstream data and downlink data have a sequence number SND and SNU respectively.If the PDP Context above the SGSN is deletion not, this sequence number can recovered to use in the data transfer down.

Figure 20 is the action specification of GGSN among first embodiment.

2001 steps, GGSN receives that from SGSN " set up the PDP Context request information, the address and the SGSN that comprise SGSN in the message are the TEID that downlink data distributes.

2002 steps, GGSN preserves the TEID of SGSN address and SGSN distribution, and GGSN is upstream data distribution T EID, sends message then and " sets up the PDP Context response " to SGSN, comprises the address of GGSN and the TEID that GGSN distributes in the message.

2003 steps, GGSN receives downlink data, and data are directly sent to SGSN.

2004 steps, GGSN receives " user plane update request " message, comprises the address of RNC and the TEID that RNC distributes in the message, beginning directly sends to RNC to data.

Figure 21 is among the embodiment, when network initiates to set up data tunnel, and the action specification of SGSN.The difference of the action of SGSN was there is not 2103 step when the action of the SGSN that UE initiates and network were initiated, and in 2104 steps, SGSN receives " service request " message that UE sends, and the type of service request is data.Other step is the same.

2101 steps, SGSN receives and " activates the PDP Context request information, SGSN distribution T EID, and send and " set up the PDP Context request information and give GGSN, comprise SGSN address and TEID in the message.

2102 steps, SGSN receives " setting up the PDP Context response " that GGSN sends, and comprises the address of GGSN and the TEID that GGSN distributes in the message, SGSN preserves information.

2103 steps, SGSN receives the packet about this PDP Context, checks the state of PDP Context, if state is inactive, " the paging request information is given RNC, comprises information such as IMSI, P-TMSI in the message in transmission.

2104 steps, SGSN receives page-response message, SGSN distributes the RAB resource, sends " RAB configuring request " and gives RNC, comprises the address of GGSN and the TEID that GGSN distributes in the message.

2105 steps, SGSN receives " RAB configuration response " message, the address and the RNC that have obtained RNC are the TEID that downlink data distributes.

2106 steps, SGSN sends message " user plane update request " and gives GGSN, comprises the address of RNC and the TEID that RNC distributes in the message.

2107 steps, SGSN receives " user plane upgrades response " message, the process of setting up data tunnel just is through with.

Figure 15 and Figure 16 are second embodiment that sets up general data business data transmission tunnel among the present invention.In this embodiment, SGSN is not downlink data distribution T EID, and GGSN is upstream data distribution T EID, and notice SGSN.SGSN is kept at the TEID that GGSN distributes in the PDP Context, in due course, and this TEID of notice RNC.The signaling process that PDP activates is seen shown in Figure 15.

1501 steps, terminal send and " activate the PDP Context request information and give SGSN.Message content is the same with present message content.

1502 steps, SGSN sends message and " sets up the PDP Context request " to GGSN, does not comprise the TEID that SGSN is a data allocations in the message, and out of Memory can be the same with present message content.

1503 steps, GGSN sets up PDP Context, is upstream data distribution T EID, and message is notified SGSN TEID " to set up the PDP Context response " by message, and the content of this message is the same with present message content.

1504 steps, address and GGSN that SGSN preserves GGSN are the TEID that upstream data distributes, and send " activating the PDP Context response " message then and give terminal.

Figure 16 is among the embodiment two, when having data to send, sets up the signaling process of data transmission path when descending.In this embodiment, GGSN preserves the state of PDP Context, if the user carries out idle condition, the state of PDP Context is exactly the inactive state, if the tunnel between GGSN and the RNC exists, then the state of PDP Context is the active state.

Because SGSN is not downlink data distribution T EID, therefore, data can not directly arrive SGSN.GGSN receives the packet about certain PDP Context, and GGSN checks the content of PDP Context, if the state of PDP Context is the inactive state, needs to initiate paging.GGSN finds corresponding SGSN, sends 1601 message " paging request " then and gives SGSN, comprises user's sign IMSI in the message.

" the paging request information is given RNC, and 1603 to 1611 steps are the same with 1202 to 1210 steps, omits in SGSN transmission then.

Figure 16 is the signaling process of the data service tunnel foundation that network is initiated among second embodiment, and UE also can initiate the signaling process that the data service tunnel is set up, and the UE process of transmitting does not comprise 1601 to 1604 step, and other step is the same with the process that network is initiated.

The dispose procedure of RAB, the same with RAB dispose procedure among first embodiment, referring to Figure 13.

The dispose procedure of Iu interface, the same with Iu interface dispose procedure among first embodiment, referring to Figure 14.

Figure 22 is the action specification of GGSN among second embodiment.

2201 steps, GGSN receives that from SGSN " set up the PDP Context request information, the address and the SGSN that do not comprise SGSN in the message are the TEID that downlink data distributes.

2202 steps, GGSN is upstream data distribution T EID, sends message then and " sets up the PDP Context response " to SGSN, comprises the address of GGSN and the TEID that GGSN distributes in the message.

2203 steps, GGSN receives downlink data, if find that the PDP state is the inactive state, GGSN is data cached, " the paging request information is given SGSN, comprises user's sign in the message, such as IMSI in transmission.

2204 steps, GGSN receives " user plane update request " message, comprises the address of RNC and the TEID that RNC distributes in the message, beginning directly sends to RNC to data.

Figure 23 is among two embodiment, when network initiates to set up data transmission tunnel, and the action specification of SGSN.When UE initiates and the difference of network action of SGSN when initiating be there is not 2303 step, in 2304 steps, SGSN receives " service request " message that UE sends, the type of service request is data.Other step is the same.

2301 steps, SGSN receives that " activate the PDP Context request information, SGSN sends and " sets up the PDP Context request information and give GGSN, do not comprise TEID in the message.

2302 steps, SGSN receives " setting up the PDP Context response " that GGSN sends, and comprises the address of GGSN and the TEID that GGSN distributes in the message, SGSN preserves information.

2303 steps, SGSN receives " the paging request " that GGSN sends, " the paging request information is given RNC, comprises information such as IMSI, P-TMSI in the message in the SGSN transmission.

2304 steps, SGSN receives page-response message, SGSN distributes the RAB resource, sends " RAB configuring request " and gives RNC, comprises the address of GGSN and the TEID that GGSN distributes in the message.

2305 steps, SGSN receives " RAB configuration response " message, the address and the RNC that have obtained RNC are the TEID that downlink data distributes.

2306 steps, SGSN sends message " user plane update request " and gives GGSN, comprises the address of RNC and the TEID that RNC distributes in the message.

2307 steps, SGSN receives " user plane upgrades response " message, the process of setting up data tunnel just is through with.

Figure 17 is the 3rd embodiment that sets up general data business data transmission tunnel in the invention to Figure 19.In this embodiment, in PDP activation, SGSN and GGSN are not data allocations TEID, but reallocation in the needs transfer of data.The signaling process that PDP activates is seen shown in Figure 17.

1701 steps, terminal send and " activate the PDP Context request information and give SGSN.Message content is the same with present message content.

1702 steps, SGSN sends message and " sets up the PDP Context request " to GGSN, does not comprise the TEID that SGSN is a data allocations in the message, and out of Memory can be the same with present message content.

1703 steps, GGSN sets up PDP Context, sends message and " sets up the PDP Context response " to SGSN.Do not comprise the TEID that GGSN is a data allocations in the message, out of Memory can be the same with present message content.

1704 steps, SGSN sends " activating the PDP Context response " message and gives terminal.

Figure 18 is among the embodiment three, when having data to send, sets up the signaling process of data transmission path when descending.In this embodiment, GGSN preserves the state of PDP Context, if the user carries out idle condition, the state of PDP Context is exactly the inactive state, if the tunnel between GGSN and the RNC exists, then the state of PDP Context is the active state.

Because SGSN is not downlink data distribution T EID, therefore, data can not directly arrive SGSN.In 1801 steps, GGSN receives the packet about certain PDP Context, and GGSN checks the content of PDP Context, if the state of PDP Context is the inactive state, needs to initiate paging.GGSN finds corresponding SGSN, and be upstream data distribution T EID, sends 1802 message " paging request " then to SGSN, comprises user's sign IMSI in the message, the address of GGSN, TEID.

" the paging request information is given RNC, and 1803 to 1812 steps are the same with 1202 to 1211 steps, omits in SGSN transmission then.

Figure 19 is among the embodiment three, when having data to send, sets up the signaling process of data transmission path when up.

1901 steps, the user has upstream data to send, and at first sets up RRC and connects.

1902 steps, the user sends " service request " message and gives SGSN.

1903 steps, because in embodiment 3, when activating PDP Context, GGSN is not upstream data distribution T EID, therefore, the message that needs SGSN transmission 1903 requires to obtain the TEID of upstream data to GGSN.

1904 steps, GGSN gives upstream data distribution T EID, and sends message " user plane response " message to SGSN, and message comprises address and the TEID of GGSN.

1905 steps, SGSN sends " RAB configuring request " message and gives RNC, comprises GGSN address and TEID in the message.This message is the same with 1206 steps, specifically describes the description referring to 1206 steps, omits herein.

1906 steps, RNC sets up radio bearer.

1907 steps, RNC sends " RAB configuration response " message and gives SGSN, comprises address and the TEID of RNC in the message.This message is the same with 1208 steps, specifically describes the description referring to 1208 steps, omits herein.

1908 steps after SGSN receives message, send to GGSN to RNC address and TEID by 1908 steps.This message is the same with 1209 steps, specifically describes the description referring to 1209 steps, omits herein.

The message of 1909 steps " user plane upgrades response " is the response message of 1908 message.If consider that the signaling transmission between SGSN and the GGSN is very reliable, 1908 message can not have response message yet.

1910 steps, data begin by the tunnel transmission between RNC and the GGSN.

Figure 24 is the action specification of GGSN among the 3rd embodiment.

2401 steps, GGSN receives that from SGSN " set up the PDP Context request information, the address and the SGSN that do not comprise SGSN in the message are the TEID that downlink data distributes.

2402 steps, GGSN is not upstream data distribution T EID, sends message " setting up PDP Context responds " and gives SGSN, does not comprise TEID in the message.

2403 steps, GGSN receives downlink data, if find that the PDP state is the inactive state, GGSN is data cached, distributes a TEID to Data Receiving, and " the paging request information is given SGSN; comprise user's sign in the message, such as IMSI, also comprises the TEID that GGSN distributes in transmission.

2404 steps, GGSN receives " user plane update request " message, comprises the address of RNC and the TEID that RNC distributes in the message, beginning directly sends to RNC to data.

Figure 25 is among the 3rd embodiment, when network initiates to set up data transmission tunnel, and the action specification of SGSN.

2501 steps, SGSN receives that " activate the PDP Context request information, SGSN sends and " sets up the PDP Context request information and give GGSN, do not comprise TEID in the message.

2502 steps, SGSN receives " setting up the PDP Context response " that GGSN sends, and does not comprise the TEID that GGSN distributes in the message, SGSN preserves information.

2503 steps, SGSN receives " the paging request " that GGSN sends, comprising user ID IMSI and GGSN in the message is the TEID that upstream data distributes, SGSN preserves information, " the paging request information is given RNC, comprises information such as IMSI, P-TMSI in the message in the SGSN transmission then.

2504 steps, SGSN receives page-response message, SGSN distributes the RAB resource, sends " RAB configuring request " and gives RNC, comprises the address of GGSN and the TEID that GGSN distributes in the message.

2505 steps, SGSN receives " RAB configuration response " message, the address and the RNC that have obtained RNC are the TEID that downlink data distributes.

2506 steps, SGSN sends message " user plane update request " and gives GGSN, comprises the address of RNC and the TEID that RNC distributes in the message.

2507 steps, SGSN receives " user plane upgrades response " message, the process of setting up data tunnel just is through with.

Figure 26 is among the 3rd embodiment, when UE initiates to set up data transmission tunnel, and the action specification of SGSN.

2601 steps, SGSN receives that " activate the PDP Context request information, SGSN sends and " sets up the PDP Context request information and give GGSN, do not comprise TEID in the message.

2602 steps, SGSN receives " setting up the PDP Context response " that GGSN sends, and does not comprise the TEID that GGSN distributes in the message, SGSN preserves information.

2603 steps, SGSN receives " service request " message, and the type of service is data, and SGSN sends message " user plane request " and gives GGSN, the TEID that requires GGSN to distribute upstream data to receive

2604 steps, SGSN has received the response message " user plane response " of GGSN, has obtained GGSN and has given the TEID of data allocations.

2605 steps, SGSN distributes the RAB resource, sends " RAB configuring request " and gives RNC, comprises the address of GGSN and the TEID that GGSN distributes in the message.

2606 steps, SGSN receives " RAB configuration response " message, the address and the RNC that have obtained RNC are the TEID that downlink data distributes.

2607 steps, SGSN sends message " user plane update request " and gives GGSN, comprises the address of RNC and the TEID that RNC distributes in the message.

2608 steps, SGSN receives " user plane upgrades response " message, the process of setting up data tunnel just is through with.

Claims

1. a tunnel of setting up between RNC and the GGSN comes the method for MBMS transmission business, comprises step:

GGSN sends " MBMS Session begins " message and gives SGSN;

SGSN sends " MBMS Session begins response " message and gives GGSN;

SGSN sends " MBMS Session begins " message and gives RNC;

2. method according to claim 1 is characterized in that also comprising that described SGSN sends to GGSN to the information of MBMS user plane by a new message.

3. method of deleting the tunnel of MBMS transmission data between RNC and the GGSN comprises step:

RNC sends to SGSN to the information of deletion MBMS user plane;

4. method according to claim 3 is characterized in that, SGSN sends to GGSN to the information of the user plane that will delete by a new message.

5. method that the tunnel of setting up between RNC and the GGSN comes transmitting data service comprises step:

GGSN sends to SGSN to the TEID of GGSN address and GGSN distribution;

SGSN sends to RNC to the TEID of GGSN address and GGSN distribution;

RNC sends to SGSN to the TEID of RNC address and RNC distribution;

SGSN sends to GGSN to the TEID of RNC address and RNC distribution.

6. method according to claim 5 is characterized in that, GGSN sends to SGSN to the TEID of GGSN address and GGSN distribution by " setting up the PDP Context response " message.

7. method according to claim 5 is characterized in that described SGSN sends to RNC to the TEID of GGSN address and GGSN distribution and sends to RNC by message " RAB configuring request ".

8. method according to claim 5 is characterized in that described RNC sends to SGSN to the TEID of RNC address and RNC distribution and sends to RNC by message " RAB configuration response ".

9. method according to claim 5 is characterized in that described SGSN sends to GGSN to the TEID of RNC address and RNC distribution and sends to GGSN by existing message.

10. method according to claim 5 is characterized in that also comprising:

In the process that activates PDP Context, SGSN " sets up the PDP Context request to the TEID of GGSN address and GGSN distribution " by message and sends to GGSN.

11., it is characterized in that when data began to transmit, data directly were transferred to SGSN according to claim 5 or 10 described methods, SGSN initiates paging.

12. method according to claim 5 is characterized in that also comprising, in the process that activates PDP Context, SGSN is not downlink data distribution T EID, " sets up and does not comprise the TEID that SGSN is a data allocations in the PDP Context request information.

13. method according to claim 12 is characterized in that, the PDP Context state of the last preservation of GGSN is inactive or active.

14., it is characterized in that when data began to transmit, data directly were transferred to GGSN according to claim 5 or 12 described methods, GGSN initiates paging.

15. method according to claim 6 is characterized in that, comprises UE sign IMSI in the beep-page message.

16. method according to claim 5 is characterized in that also comprising, SGSN sends message to GGSN, and requiring GGSN is upstream data distribution T EID.

17. method according to claim 16 is characterized in that also comprising, GGSN sends response message to SGSN, comprises the TEID that GGSN distributes.