CN1794872A

CN1794872A - Method of stopping conversation in radio access network

Info

Publication number: CN1794872A
Application number: CN 200510085625
Authority: CN
Inventors: 吴建军
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2005-07-12
Filing date: 2005-07-12
Publication date: 2006-06-28
Anticipated expiration: 2025-07-12
Also published as: CN100441044C

Abstract

This invention discloses an interruption method for sessions in a wireless access network including A, ANS-DP triggers a session interrupt flow and sends the information to a mobile IP (MIP) customer end agent, in which, said session information includes interrupted session ID, B, the agent processes them orderly according to the ID in the information, after releasing the first session ID, if the PoA address corresponding to the first session ID still has other corresponding sessions, then it enters into step D, otherwise step C, C, the MIP starting up the first interruption session registers, D, the agent processes the first session information needed to be interrupted and stops it, E, repeating step B till all ID of the needed interrupted sessions are judged, F, the agent of the MIP customer end sends the result of interrupted sessions to the ASN-GWDP unit.

Description

Session stop method in a kind of wireless access network

Technical field

The present invention relates to the communications field, relate in particular to session stop method in a kind of wireless access network.

Background technology

Along with the extensive use of the flourish and wireless network of internet service, GPRS (GPRS), 3G (Third Generation) Moblie (3G), micro-wave access to global intercommunication (WiMAX) and back 3G wireless systems such as (B3G) have obtained a large amount of application and concern.The increase of number of users and the increase of user's request provide new demand for wireless access network system: requirement can be supported big capacity, the multiple business that big data quantity and different service quality require.The function of many session managements just.

Wireless access network is mainly finished provides business to provide Packet Service between network and the mobile subscriber to transmit or the function of route.Do not consider other internal units in the Access Network, we will adopt network architecture system shown in Figure 1 when technical description subsequently.The functional interpretation of each network element among Fig. 1 is as follows:

Access service network (ASN): ASN is defined as the network function set that the wireless access service is provided for the WiMAX terminal, and ASN has comprised base station (BS) and access service network gateway (ASN-GW) network element.ASN mainly provides following function:

The function of BS:

-provide BS to be connected with the L2 of mobile subscriber station (MSS)

-RRM

-measure and power control

The compression and the encryption of-the data of eating dishes without rice or wine

The function of ASN-GW:

-provide proxy function for MSS authentication function

The network of-network enabled service provider (NSP) is found and is selected

-the Relay function (as IP address assignment) of L3 information is provided for MSS

-RRM

-ASN-GW can be divided into (access service network gateway decision point) ASN-GW DP function and (access service network gateway execution point) ASN-GW EP function on logic function, wherein DP mainly is the entity of some chain of command functions of processing, and EP is the entity of deal with data surface function.Whether do not limit them in the present invention geographically separates.

Tunnel management between the-ASN-CSN is equivalent to external agent (FA) in the mobile IP technology except above-mentioned functions, can also comprise (non-essential function):

Switch in-the ASN

-MSS paging and location management

The registration of-vision location

Authenticator+Proxy MIP Client:(under the PMIP situation, Authenticator and MIP Client Agent; Under the CMIP situation, only be Authenticator)

-provide proxy function for MSS authentication function

-act on behalf of the role of MIP client, the IP address binding of MSS to HA, is set up FA at this IP address to the tunnel between the HA.

Connectivity serving network (CSN): CSN is defined as to the WiMAX terminal IP is provided Connection Service.CSN mainly provides following function:

The IP address assignment of-MSS

-Internet inserts

-(authentication, authentication, charging proxy) AAA proxy or server

-based on user's authorization control

-ASN is equivalent to the home agent (HA) in the mobile IP technology to the tunnel of CSN

-WiMAX user's charging and the clearing between the operator

Tunnel under the-roaming condition between the CSN

Switching between the-ASN

-various WiMAX services (as location-based business, multi-medium multi-packet broadcasting and broadcasting service, IP Multimedia System business)

MSS:MSS is a mobile subscriber equipment, and the user uses this devices accessing WiMAX network.

From ASN IP data carried by data face, the grouping busihess data of descending MSS newspaper is from the HA of the CSN tunnel (Interface R3) by the foundation between the ASN-GW HA and the ASN, be sent among the ASN, and send on the BS through the ASN internal interface by ASN-GW, utilize the R1 interface between BS and the MSS that the data of MSS are sent on the MSS then.Up datagram also sends among the ASN through the MSS that associates, and sends in the outer net through the tunnel between ASN GW and the HA.

On the session service aspect, the session between any one MSS and the business network (session) all needs to utilize the IP carrying of ASN and the function of transmission.But at different sessions, session that might be all is the tunnel carrying by same ASN-GW and HA, also might be different session by the different tunnels carrying between ASN-GW and the HA, also might different sessions be that the tunnel by the HA foundation among ASN-GW and the different CSN carries.In the notion of mobile IP,, will have a plurality of PoA address to this MSS so if having many tunnels for a MSS.

Therefore in session stop, at different situations, the process of session stop is also with different.How finishing the session stop process timely and effectively, all is very important for the utilization again of system resource and the raising of power system capacity.The present invention will propose improved conversation managing method when session stop.

Under the PMIP pattern, the Client Agent of MIP is in ASN, the processing of requests such as foundation/release of MIP and response message is transparent for MSS, the Client Agent of MIP or by FA or directly and foundation/releases of finishing all MIP between the HA wait the initiation of request and response message and reception to operate, thereby the IP tunnel between foundation/release ASN-GW and the HA.

In mobile IP (MIP) process, the client of MIP on MSS, thereby MSS or by FA or directly and foundation/releases of finishing all MIP between the HA wait the initiation of request and response message and reception to operate IP tunnel between foundation/release ASN-GW and the HA.For this pattern, we are referred to as CMIP.

Prior art 1, method and flow process based on the session stop of PMIP have been proposed in motion 050607_NWG_01r8_PMIP-Inter-ASN-mobility-accepted, ASN-GW DP unit is after having triggered the session stop process, in ASN, bear the network element of mobile IP customer terminal function and initiated session stop request (R3_Session_Release.Request), and provide the sign of this MSS, thereby go registration process by the MIP that the client of MIP has initiated to discharge the tunnel between FA and the HA.Received MIP up to the MIP client and gone the response of registering, the MIP client is just ended session the result and is returned to ASN-GW DP unit by session stop response (R3_Session_Release.Reply).Thereby finished the whole session abort process.Whole process is illustrated in fig. 2 shown below.

S011, ASN-GW DP unit are after having triggered the session stop process, MIP Client Agent in ASN has been initiated session stop request (R3_Session_Release.Request), and the sign of this MSS is provided in message, notice MIP Client Agent initiates to discharge the FA of this MSS and the MIP in the tunnel between the HA goes registration process;

S012, MIP Client Agent Lifetime in the MIP register requirement is set to 0 and is dealt among the FA.

The MIP that S013, ASN-GW FA transmit the MSS that receives goes register requirement to arrive HA.

S014, HA discharge the FA of the PoA address correspondence of desired cancellation binding in the registration message and the tunnel between the HA; And will go the registration response to issue FA.

S015, FA transmit and go the registration response to issue the MIP Client Agent.

S016, MIP Client Agent receive after the registration response, initiate session stop response message (R3_Session_Release.Request) and given ASN-GW DP unit, and the sign of this MSS is provided in message, the session of notice ASN-GWDP this MSS of unit is ended.

If a tunnel has carried a plurality of sessions, adopt the method for prior art 1 so, other all sessions that the abort process of any one session all will cause being carried on the same tunnel are also ended simultaneously.That is to say that this method is not suitable for a plurality of sessions and is carried on situation on the tunnel between an ASN-GW and the HA simultaneously.

Moreover, when having many tunnels to carry a plurality of session, can not promptly handle the session stop process on many tunnels for this MSS, can't handle the process of session stop effectively.

Prior art 2 is flow process and the methods that propose in motion 050602_NWG_05_Client_MIP_Architecture-accepted based on the session stop of CMIP, mainly is client at the MIP processing procedure on MSS.ASN-GW DP unit is after having triggered the session stop process, initiated session stop request (R3_Session_Release.Request) to ASN-GWFA (EP), and provide the sign of this MSS, send the FA advertisement by ASN-GW FA to this MSS, the MIP that notice is initiated the tunnel between release FA and the HA in the MIP client on the MSS goes registration process.Responded MIP up to HA and gone the response of registering, and after being given MSS by ASN-GW FA relaying, ASN-GW FA just ends session the result and returns to ASN-GW DP unit by session stop response (R3_Session_Release.Reply).Thereby finished the whole session abort process.Whole process as shown in Figure 3.

Session stop request (R3_Session_Release.Request) has been initiated to ASB-GW FA (EP) in S021, ASN-GW DP unit after having triggered the session stop process, and the sign of this MSS is provided in message.

S022, ASN-GW FA send the FA advertisement to this MSS, and the MIP that notice is initiated the tunnel between release FA and the HA in the MIP client on the MSS goes registration process.

S023, MSS client Lifetime in the MIP register requirement is set to 0 and is dealt among the FA.

The MIP that S024, ASN-GW FA transmit the MSS that receives goes register requirement to arrive HA.

S025, HA discharge the FA of the PoA address correspondence of desired cancellation binding in the registration message and the tunnel between the HA; And will go the registration response to issue FA.

S026, FA transmit and go the registration response to issue MSS.

S027, the session stop of FA transmission simultaneously respond (R3_Session_Release.Reply), and the sign of this MSS are provided in message.

If a tunnel has carried a plurality of sessions, adopt the method for prior art 2 so, other all sessions that the abort process of any one session all will cause being carried on the same tunnel are also ended simultaneously.The scheme that is to say prior art 2 is not suitable for a plurality of sessions and is carried on situation on the tunnel between an ASN-GW and the HA simultaneously.

Summary of the invention

The invention provides session stop method in a kind of wireless access network, can not be applicable to the problem of a plurality of sessions carry on same tunnel simultaneously in order to solve the session stop process that exists in the prior art.

The inventive method comprises:

The session stop method is characterized in that in a kind of wireless access network, may further comprise the steps:

A, ANS-DP triggering session are ended flow process, will end session information and send to mobile IP (MIP) Client Agent, and described session information comprises the termination session id;

B, MIP Client Agent are handled successively according to the termination session id in the termination information, if after discharging first session id, the pairing PoA of first session id address also has other corresponding sessions, then enters step D, otherwise enters step C;

C, MIP Client Agent are initiated first MIP that ends session and are gone the registration operation;

First session information that D, MIP Client Agent will need to end is handled, and ends this first session;

E, repeating step B need end session id until all and judge and finish;

F, MIP Client Agent send the session stop results messages to ASN-GW DP unit.

In the described termination session information, also carry and end session attachment point (POA) address and/or end session home agent (HA) address.

In the described steps A, described termination session information also comprises the pairing session id in POA address of described termination session id correspondence, and among the described step B, described other sessions are taken at described termination session information.

Described MIP Client Agent stores to be ended session attachment point (POA) address and/or ends session home agent (HA) address.

Described method, MIP Client Agent store the pairing session id in POA address of described termination session id correspondence, and among the described step B, described other sessions are taken at described MIP Client Agent.

Described step C comprises:

C1, MIP Client Agent initiate MIP and go registration, and to ASN-GW FA, in described message, sign-on ID is removed in setting by forwards for POA address that will (mobile subscriber station) MSS and HA address;

To HA, notice HA discharges this fixed tunnel of POA address nation with described forwards for C2, ASN-GW FA;

C3, HA send MIP through ASN-GW FA to the MIP Client Agent and go the registration response.

Described step D comprises:

D1, in the MIP Client Agent, upgrade the conversational list and the session information of described MSS correspondence, and carry out the conversation end operation;

D2, the termination session information of will being correlated with are sent to ASN-GW FA from the MIP Client Agent, at ASN-GW FA this Session Resources are discharged;

D3, ASN-GW FA send to the MIP Client Agent with session hang up object information.

Among the described step D3, in the described operation result information, comprise the result that all need end session.

In the described step F, in the described session stop results messages, comprise the result that all need end session.

A, ANS-DP triggering session are ended flow process, will end session information and send to the MIP Client Agent, and described session information comprises the termination session id;

B, MIP Client Agent are ended session for each and are handled successively, judge that whether this termination session is last session of the PoA address of correspondence, if just enter C, otherwise enters step D;

The MIP that C, MIP Client Agent are initiated a POA respective session goes the registration operation;

D, will need to end session information in the MIP client and handle, and end described session;

E, repeating step B judge until the POA address of all session id correspondences and to finish;

F, MIP Client Agent send the session stop results messages to ASN-GW DP unit.

A, access service network decision point (ANS-DP) triggering session are ended flow process, will end session information and send to (access service network gateway external agent) ASN-GW FA unit, and described session information comprises the termination session id;

B, ASN-GWFA unit obtain first session id of a POA address correspondence, and judge whether first session id is contained in described termination session id, if enter step C, if not, enter step D;

C, MSS unit are initiated the corresponding MIP that can speak of a POA and are gone the registration operation;

D, will need to end session information in ASN-GW FA unit and handle, and end this session;

E, repeating step B judge until the session id of all POA correspondences and to finish;

F, ASN-GW FA send the session stop results messages to ASN-GW DP unit.

In the described steps A, described termination conversation message also comprises first session id of a described POA address correspondence, and among the described step B, described first session id is taken at described termination conversation message.

First conversation message of a described POA address correspondence is stored in ASN-GWDP, and among the described step B, described first session id is taken at described ASN-GW DP.

Described step C comprises:

C1, ASN-GWFA send external agent (FA) advertisement information to MSS, and notice MSS needs the tunnel of this PoA address correspondence is discharged;

C2, MIP client are initiated MIP and are gone registration process, and by going to the PoA address of registration message with MSS, forwarding address is dealt on the ASN-GW FA, are provided with in this message and remove sign-on ID;

C3, FA go registration message to be transmitted to HA this, and notice HA discharges the FA of PoA address binding of this MSS to the tunnel between the HA;

C4, HA go registration reply message to send to the MIP Client Agent through FA MIP.

Among the described step C1, send the FA advertisement information by ASN-GW FA to MSS and finish notice.

Among the described step C1, in the described FA advertisement information, with the registration of going of the PoA address of FA advertisement information notice MSS correspondence.

In the described FA advertisement information, the destination address in the described IP head is set to the PoA address.

Among the described step C1, ASN-GW FA by and BS between the R6 interface on signaling/message and the air interface management face message between BS and the MSS finish notice.

Described step D comprises:

D1, in ASN-GW FA, upgrade the conversational list and the information of this MSS correspondence, and carry out the operation of conversation end.

In the described step F, in the described results messages, comprise the result that all need end session.

B, ASN-GW FA end session for each and handle successively, judge that whether this termination session is last session of the PoA address of correspondence, if just enter C, otherwise enters step D;

The MIP that C, ASN-GW FA initiate a POA respective session goes the registration operation;

F, ASN-GW FA send the session stop results messages to ASN-GW DP unit.

The present invention can solve when setting up a plurality of session on the tunnel, session stop process on one or more or all these tunnels, can solve when setting up a plurality of session on a plurality of tunnels, session stop process on one or more or all tunnels, comprise all session stop on the part tunnel, and the situation of top, part tunnel session stop, the present invention program is simple, is easy to realize.

Description of drawings

Fig. 1 is a WiMAX schematic network structure in the prior art;

Fig. 2 is the schematic flow sheet of prior art 1;

Fig. 3 is the schematic flow sheet of prior art 2;

Fig. 4 is in the embodiment of the invention 1, initiates MIP and removes the register flow path schematic diagram;

Fig. 5 is in the embodiment of the invention 1, ends the schematic flow sheet of session;

Fig. 6 is the schematic flow sheet of the termination session of the embodiment of the invention 2;

Fig. 7 is the schematic flow sheet of the termination session of the embodiment of the invention 3;

Fig. 8 is in the embodiment of the invention 5, initiates MIP and removes the register flow path schematic diagram;

Fig. 9 is in the embodiment of the invention 5, ends the schematic flow sheet of session;

Figure 10 is the schematic flow sheet of the termination session of the embodiment of the invention 6.

Embodiment

Below in conjunction with Figure of description the specific embodiment of the present invention is described.

The present invention proposes a kind of in wireless access network, supports the session stop process under the many session case of MSS.Can when session stop take place, discharge Session Resources effectively and other ongoing sessions are not exerted an influence.At PMIP and CMIP pattern, the present invention can have a plurality of schemes, is described below respectively:

Scheme 1: at the PMIP pattern, a plurality of abort process can be arranged, be described below.

Embodiment 1

Under the PMIP pattern, the Client Agent of MIP is in ASN, the processing of request such as foundation/release of MIP and response message is transparent for MSS, the Client Agent of MIP or by FA or directly and foundation/releases of finishing all MIP between the HA wait the initiation of request and response message and reception to operate.Handoff procedure under the PMIP pattern may further comprise the steps:

S11, at first, ASN-DP is when triggering session is ended, the session information of ending need need be sent to the MIP Client Agent in R3_Session_Release.Request message, for example: Session ID, the attachment point address (PoA) among the MI, corresponding HA address, MSS ID etc. consider it might is to end a batch session, and these session informations contain Session ID with one group, the PoA address, the table of HA address.

In the prior art, this message the inside has only comprised MSS ID, these are fully enough under single session case, because under single session case, only can be for any one MSS by a PoA address, also only need notice to bind the HA release of this MSS information and the tunnel between the ASN-GW, but under the situation of the many sessions of MSS, may different sessions be to be carried on the different tunnel of HA and ASN-GW, also possible is possible be different HA and the tunnel between this ASN-GW, so just need to increase session ID, PoA address, the tabulation of HA address, each session at this MSS, so tlv triple is all arranged, have the session of this MSS of what needs termination just to have what such tlv triple are arranged in message, thereby constituted individual triple table.So, can carry HA address, PoA address for the tunnel that clearly will discharge.Simultaneously, can in ASN-GW, carry out corresponding session management work, for example end charging, notify the charge information of charge system about this session etc. for this session by session id.And do not have all clearly which sessions of this termination of words of session id, so session id also need carry.

On implementation, obtaining of above-mentioned POA address and HA address, can on the MIP Client Agent, can store the PoA address and the HA address of certain session correspondence of certain MSS, like this, just can on the MIP Client Agent, obtain these two information, certainly this has just proposed requirement for MIP Client Agent or ASN-GW FA, needs the PoA address of their store M SS ID+ session id correspondence and the correspondence table of HA address.

S12, analyze earlier at the MIP Client Agent and to end session id pairing PoA address (being the bearing tunnel of a corresponding FA) to HA, corresponding all session ids whether all be in R3_Session_Release.Request message with the session id of needs termination.If, enter step S121, if not, enter step S122.

Determine owing to end the POA address of session id correspondence, and the session id of this POA correspondence is uncertain that it might also might equal this termination session id more than ending session id.All needing so to analyze for each the PoA address in the message, mainly is to see what different PoA addresses, just has this process of what S12.The process S12 of that is to say need repeat repeatedly.

If S121 ends the pairing PoA of session id address, the ID of pairing all session all be in R3_Session_Release.Request message with the session id ended of needs, then at this PoA address, according to later method (except R3_Session_Release.Reply message) of 1 second step of prior art, initiate the registration process of going of MIP by MIP Client Agent or MSS.As shown in Figure 4, be that this removes the register flow path schematic diagram, as can be seen from Fig. 4, mainly may further comprise the steps:

S1211, MIP Client Agent are initiated MIP and are gone registration process, and by the PoA address of MIP Registration Request message with MSS, forwarding address is dealt on the ASN-GW FA, in this message lifetime is made as 0, promptly go registration.

S1212, FA are transmitted to HA1 with this MIP Registration Request, and notice HA1 discharges the FA of PoA address binding of this MSS to the tunnel between the HA1.

S1213, HA1 go the registration response to beam back FA MIP.

S1214, FA give the MIP Client Agent with this forwards again.Finish a MIP like this and gone registration process.

If S122 ends the pairing PoA of session id address, the ID of corresponding all sessions be not all in R3_Session_Release.Request message with the session id ended of needs, handle with regard to the session information that only will need to end so, and end this session in the MIP client.

As shown in Figure 5, be the schematic flow sheet of this processing procedure, as seen from the figure, mainly may further comprise the steps:

S1221, in the MIP Client Agent, upgrade the conversational list and the information of this MSS correspondence, and carry out the associative operation of conversation end.

S1222, with MSS sign, session identification and other relevant session informations (for improving treatment effeciency, can be a group or a, all corresponding same PoA, also can a Session_Release.Request/Reply message all be arranged, but efficient is lower at each session) send on the ASN-GW FA from the MIP Client Agent by session stop solicitation message (Session_Release.Request).

S1223, after the processes such as resource release of carrying out on the ASN-GW FA to this session, will return to the MIP Client Agent by ASN-GW FA in the result of the session stop among ASN-GW FA operation by session stop response message (Session_Release.Reply).

The session of S13, repeating step S12 all PoA address correspondences in message disposes, and also promptly all carries out corresponding session stop for all involved tunnels in ending conversation message and handles.

S14, after step S13 disposes, the MIP Client Agent is ended results messages with session and is returned to ASN-GW DP unit by session stop response message (R3_Session_Release.Reply, this message all has corresponding result for each session id in R3_Session_Release.Request message).Thereby finished the whole session abort process.

Embodiment 2

Article one, on the tunnel during a plurality of session of carrying, the process (adopting the PMIP mode) of ending one of them session as shown in Figure 6, is the schematic flow sheet of this process, mainly may further comprise the steps:

S21, ASN-DP are when triggering session is ended, the session information of ending need need be sent to the MIP Client Agent in R3_Session_Release.Request message, comprise in the message: SessionID, attachment point address (PoA) among the MIP, corresponding HA address, session informations such as MSS ID.

S22, after even the MIP Client Agent is judged this session stop, its PoA also has corresponding other ongoing sessions, then upgrades the conversational list and the information of this MSS correspondence, and carries out the associative operation of conversation end;

S23, then MSS sign, session identification and other relevant session informations are sent on the ASN-GW FA from the MIP Client Agent by session stop solicitation message (Session_Release.Request), on ASN-GW FA, carry out processes such as resource release this session;

S24, will return to the MIP Client Agent in the result of the session stop among ASN-GW FA operation by session stop response message (Session_Release.Reply) by ASN-GW FA;

S25, MIP Client Agent are ended the result with session and are returned to ASN-GW DP unit by session stop response (R3_Session_Release.Reply).Thereby finished the whole session abort process.

Wherein important message format is defined as:

Message name	Message sender to	Message is carried information
Message name	Message sender to	Message is carried information	R3_Session_Release.Request	ASN-DP＝＞PMIP Client	MSS ID，Transaction ID，session ID，PoA@，

		HA address
		HA address	R3_Session_Release.Reply	PMIP Client＝＞ASN-DP	MSS ID，session ID， Status(Successful， Failed)，[Error Code]， Transaction ID

Embodiment 3

Ending all conversation procedures (adopting the PMIP mode) on the tunnel, as shown in Figure 7, is the schematic flow sheet of this process, mainly may further comprise the steps:

S31, ASN-DP are when triggering session is ended, the session information of ending need need be sent to the MIP Client Agent in R3_Session_Release.Request message, comprise in the message: SessionID, attachment point address (PoA) among the MIP, corresponding HA address, session informations such as MSS ID.

PoA address in S32, the MIP Client Agent discovery session stop message has only one, and to all sessions that should PoA all in the session list that needs are ended, then initiate MIP and go register requirement: Lifetime is set to 0 and is dealt among the FA in the MIP register requirement.

The MIP that S33, ASN-GW FA transmit the MSS that receives goes register requirement to arrive HA.

S34, HA discharge the FA of the PoA address correspondence of desired cancellation binding in the registration message and the tunnel between the HA; And will go the registration response to issue FA.

S35, FA transmit and go the registration response to issue the MIP Client Agent.

S36, MIP Client Agent receive after the registration response, initiate session stop response message (R3_Session_Release.Request) and given ASN-GW DP unit, and in message, provide the sign of this MSS, the session stop result that (session identification, result) two tuples list notice ASN-GW DP is asked the unit.

Wherein important message format is defined as:

Message name	Message sender to	Message is carried information
Message name	Message sender to	Message is carried information	R3_Session_Release.Request	ASN-DP＝＞PMIP Client	MSS ID，Transaction ID，list of(session ID， PoA@，HA address) pair
R3_Session_Release.Reply	PMIP Client＝＞ASN-DP	MSS ID，list of(session ID，Status(Successful，	R3_Session_Release.Request	ASN-DP＝＞PMIP Client

Failed)，[Error Code]) pair，Transaction ID

Embodiment 4

Make the abort process of change according to embodiment 1.

Present embodiment is changed the step S12 of embodiment 1, at the MIP Client Agent, earlier each is ended session and handles successively, judges that whether this termination session is last session of the PoA address of correspondence, if just enter S421, otherwise enters step S422; All the other steps and embodiment 1 can same treatment.

Embodiment 4 specifically may further comprise the steps:

S41, ASN-DP are when triggering session is ended, the session information of ending need need be sent to the MIP Client Agent in R3_Session_Release.Request message, for example: Session ID, attachment point address (PoA) among the MIP, corresponding HA address, MSS ID etc., consider it to be to end a batch session, these session informations contain Session ID with one group, PoA address, the table of HA address.

S42, MIP Client Agent are ended session for each and are handled successively, judge whether this termination session is last session of the PoA address of correspondence, if, enter step S421, if not, enter step S422.

S421, then at this session id, according to later method (except R3_Session_Release.Reply message) of prior art 1 second step, initiate the registration process of going of MIP by MIP Client Agent or MSS.

S422, the session information that will need to end in the MIP client are handled, and are ended this session.

The POA of S43, repeating step S42 all session id correspondences in message disposes.

S44, after step S43 disposes, the MIP Client Agent is ended results messages with session and is returned to ASN-GW DP unit by the session stop response message.Thereby finished the whole session abort process.

Scheme 2: at the PMIP pattern, a plurality of abort process can be arranged, be described below.

In the MIP process, the client of MIP on MSS, thereby MSS or by FA or directly and foundation/releases of finishing all MIP between the HA wait the initiation of request and response message and reception to operate IP tunnel between foundation/release ASN-GW and the HA.For this pattern, we are referred to as CMIP.

Embodiment 5

S51, ASN-DP are when triggering session is ended, the session information of ending need need be sent to MIP Client Agent/ASN-GW FA (corresponding PMIP/CMIP pattern respectively) in R3_Session_Release.Request message, for example: Session ID, attachment point address (PoA) among the MIP, corresponding HA address, MSS ID etc., consider it to be to end a batch session, these session informations contain Session ID with one group, PoA address, the table of HA address.

S52, in ASN-GW FA, analyze earlier the pairing all session in PoA address (being the tunnel of a corresponding FA) corresponding in the message to HA ID whether all in R3_Session_Release.Request message with the session id of needs termination.All needing so to analyze for each the PoA address in the message, mainly is to see what different PoA addresses, just has this process of what S52.The process S52 of that is to say need repeat repeatedly.

S521 if, at this PoA address, the method (except R3_Session_Release.Reply message) that second in the technology two step is later, the registration process of going by MSS initiates MIP as shown in Figure 8, mainly may further comprise the steps:

Here need to revise the content of FA advertisement information, destination address in need the IP head is set to the PoA address, rather than used broadcasting or multicast address in the FA advertisement information of normal MIP, thereby MSS can obtain and need go to the PoA address of registering, and be made as 0 with Lifetime this moment.

Perhaps take the signaling/message of other method by the R6 interface between FA and the BS PoA address corresponding tunnel relevant with air interface management face message informing MSS between the MSS to need to discharge with BS.

S522, MIP client are initiated MIP and are gone registration process, and by the PoA address of MIP Registration Request message with MSS, the FA address is dealt on the ASN-GW FA, in this message lifetime is made as 0, promptly go registration.

S523, FA are transmitted to HA with this MIP Registration Request, and notice HA discharges the FA of PoA address binding of this MSS to the tunnel between the HA.

S524, HA go the registration response to beam back FA MIP.

S525, FA have obtained to give the MIP Client Agent with this forwards again after the result that MIP goes to register.Finished the registration process of going like this at the next MIP of CMIP mode.

S522, if not, handle with regard to the session information that only will need to end so, and end this session at MIP client/ASN-GW FA (respectively corresponding PMIP/CMIP pattern).As shown in Figure 9, mainly may further comprise the steps:

S5221, in ASN-GW FA, upgrade the conversational list and the information of this MSS correspondence, and carry out the associative operation of conversation end.

S53, repeat S52, the session of all PoA address correspondences disposes in message, also promptly all carry out corresponding session stop and handle for all involved tunnels in ending conversation message.

S54, after S53 disposes, ASN-GW FA ends the result with session and returns to ASN-GW DP unit by the session stop response message, in this results messages, comprises the result that all need end session.Thereby finished the whole session abort process.

Embodiment 6

Article one, on the tunnel during a plurality of session of carrying, the process of ending one of them session.

S61, ASN-DP are when triggering session is ended, the session information of ending need need be sent to the MIP Client Agent in R3_Session_Release.Request message, comprise in the message: SessionID, attachment point address (PoA) among the MIP, corresponding HA address, session informations such as MSS ID.

Even S62, in ASN-GW FA, judge this session stop after, its PoA also has corresponding other ongoing sessions, then upgrades the conversational list and the information of this MSS correspondence, and carries out the associative operation of conversation end;

S63, ASN-GW FA end the result with session and return to ASN-GW DP unit by session stop response (R3_Session_Release.Reply).Thereby finished the whole session abort process.

Wherein important message format is defined as:

Message name	Message sender to	Message is carried information
Message name	Message sender to	Message is carried information	R3_Session_Release.Request	ASN-DP＝＞ASN GW FA	MSS ID，Transaction ID，session ID，PoA@， HA address
R3_Session_Release.Reply	ASN GW FA＝＞ASN-DP	MSS ID，session ID， Status(Successful， Failed)，[Error Code]， Transaction ID	R3_Session_Release.Request	ASN-DP＝＞ASN GW FA	MSS ID，Transaction ID，session ID，PoA@， HA address

Embodiment 7

Present embodiment is changed the step S62 of embodiment 6, at ASN-GW FA, earlier each is ended session and handles successively, judges that whether this termination session is last session of the PoA address of correspondence, if just enter S721, otherwise enters step S722; All the other steps and embodiment 6 can same treatment.

Embodiment 7 specifically may further comprise the steps:

S71, ASN-DP are when triggering session is ended, the session information of ending need need be sent to ASN-GW FA in R3_Session_Release.Request message, for example: Session ID, PoA among the MIP, corresponding HA address, MSS ID etc., consider it to be to end a batch session, these session informations contain Session ID with one group, PoA address, the table of HA address.

S72, ASN-GW FA end session for each and handle successively, judge whether this termination session is last session of the PoA address of correspondence, if, enter step S721, if not, enter step S722.

S721, then at this session id, according to later method (except R3_Session_Release.Reply message) of prior art 2 second step, initiate the registration process of going of MIP by MIP Client Agent or MSS.

S722, the session information that will need to end at ASN-GW FA are handled, and are ended this session.

The POA of S73, repeating step S72 all session id correspondences in message disposes.

S74, after step S73 disposes, ASN-GW FA ends results messages with session and returns to ASN-GW DP unit by the session stop response message.Thereby finished the whole session abort process.

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims

1, session stop method in a kind of wireless access network is characterized in that, may further comprise the steps:

E, repeating step B need end session id until all and judge and finish;

F, MIP Client Agent send the session stop results messages to ASN-GW DP unit.

2 the method for claim 1 is characterized in that in the described termination session information, also carry to end session attachment point (POA) address and/or end session home agent (HA) address.

3, method as claimed in claim 2 is characterized in that, in the described steps A, described termination session information also comprises the pairing session id in POA address of described termination session id correspondence, among the described step B, described other sessions are taken at described termination session information.

4, the method for claim 1 is characterized in that described MIP Client Agent stores termination session attachment point (POA) address and/or ends session home agent (HA) address.

5, the method for claim 1 is characterized in that, the MIP Client Agent stores the pairing session id in POA address of described termination session id correspondence, and among the described step B, described other sessions are taken at described MIP Client Agent.

6, the method for claim 1 is characterized in that, described step C comprises:

To HA, notice HA discharges this fixed tunnel of POA address nation with described forwards for C2, ASN-GWFA;

7, the method for claim 1 is characterized in that described step D comprises:

8, method as claimed in claim 7 is characterized in that among the described step D3, in the described operation result information, comprises the result that all need end session.

9, the method for claim 1 is characterized in that in the described step F, in the described session stop results messages, comprises the result that all need end session.

10, session stop method in a kind of wireless access network is characterized in that, may further comprise the steps:

F, MIP Client Agent send the session stop results messages to ASN-GW DP unit.

11, session stop method in a kind of wireless access network is characterized in that, may further comprise the steps:

B, ASN-GW FA unit obtain first session id of a POA address correspondence, and judge whether first session id is contained in described termination session id, if enter step C, if not, enter step D;

The MIP that a POA respective session is initiated in C, MSS unit goes the registration operation;

F, ASN-GW FA send the session stop results messages to ASN-GW DP unit.

12, method as claimed in claim 11 is characterized in that, in the described steps A, described termination conversation message also comprises first session id of a described POA address correspondence, among the described step B, described first session id is taken at described termination conversation message.

13, method as claimed in claim 12 is characterized in that, first conversation message of a described POA address correspondence is stored in ASN-GW DP, and among the described step B, described first session id is taken at described ASN-GW DP.

14, method as claimed in claim 11 is characterized in that described step C comprises:

C1, ASN-GW FA send external agent (FA) advertisement information to MSS, and notice MSS needs the tunnel of this PoA address correspondence is discharged;

15, method as claimed in claim 14 is characterized in that among the described step C1, sends the FA advertisement information by ASN-GW FA to MSS and finishes notice.

16, method as claimed in claim 15 is characterized in that among the described step C1, in the described FA advertisement information, with the registration of going of the PoA address of FA advertisement information notice MSS correspondence.

17, method as claimed in claim 15 is characterized in that in the described FA advertisement information, the destination address in the described IP head is set to the PoA address.

18, method as claimed in claim 14 is characterized in that among the described step C1, ASN-GWFA by and BS between the R6 interface on signaling/message and the air interface management face message between BS and the MSS finish notice.

19, method as claimed in claim 10 is characterized in that described step D comprises:

20, method as claimed in claim 10 is characterized in that in the described step F, in the described results messages, comprises the result that all need end session.

21, session stop method in a kind of wireless access network is characterized in that, may further comprise the steps:

F, ASN-GWFA send the session stop results messages to ASN-GW DP unit.