CN102573013B - Data transmission method by adopting multiple access modes and access device - Google Patents

Data transmission method by adopting multiple access modes and access device Download PDF

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Publication number
CN102573013B
CN102573013B CN201010608250.5A CN201010608250A CN102573013B CN 102573013 B CN102573013 B CN 102573013B CN 201010608250 A CN201010608250 A CN 201010608250A CN 102573013 B CN102573013 B CN 102573013B
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user
data message
station location
location marker
access
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CN102573013A (en
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张世伟
符涛
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Kunshan chuangzhihui Intellectual Property Operation Co.,Ltd.
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ZTE Corp
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Priority to PCT/CN2011/084038 priority patent/WO2012089032A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/04—Registration at HLR or HSS [Home Subscriber Server]

Abstract

The invention discloses a data transmission method by adopting multiple access modes, which is applied to a network with separated identification and locator identification. The method includes that a second access node receives data messages sent by a first access node and records connection bonding relation of identification of a source user and locator identification of the source user in the data messages; the locator identification of the source user in the data messages is the locator identification of the first access node; and the second access node receives the data messages sent to the source user, locator identification of the source user recorded by the second access node is searched according to the connection bonding relation, and the data messages are sent to the inquired first access node corresponding to the locator identification of the source user. The invention further discloses an access device. The data transmission method and the access device can enable the user terminal to launch business independently in various access modes, and business flows can not conflict with each other.

Description

A kind ofly adopt data transmission method in plurality of access modes and access device
Technical field
The present invention relates to communication technical field, particularly relate to and a kind ofly adopt data transmission method in plurality of access modes and access device.
Background technology
Existing internet widely used transmission control protocol/Internet Protocol (TransmissionControl Protocol/Internet Protocol, TCP/IP) in, IP address has dual-use function, that is: both as the station location marker of communication terminal host network interface in network topology of network layer, again as the identify label of transport layer host network interface.The situation of host mobility is not considered at the beginning of TCP/IP design.But when host mobility is more and more general, the semanteme overload defect of IP address is day by day obvious.When the IP address of main frame changes, not only route will change, and the identify label of communication terminal main frame also changes, thus routing overhead can be caused more and more heavier, and the change of host identification can cause application and the interruption be connected.The object that identify label is separated with station location marker be in order to solve IP address in TCP/IP semanteme overload and routing overhead serious, and the problem such as fail safe, thus the dual-use function of IP address is separated, realize mobility, many locals property, the dynamic code reassignment in IP address, alleviate the support of the problems such as exchanging visit in routing overhead and Next Generation Internet between heterogeneous networks region.
For solving the problem, propose the network architecture that multiple identify label is separated with station location marker at present, comprise host identity protocol (Host Identity Protocol, HIP), location identity separated protocol (LISP), all genus identify label and locator separation network.
(application number is the Chinese patent application of CN200910174826.9 for identify label shown in Fig. 1 and locator separation network framework, the applying date is on October 17th, 2009), for convenience of description, hereafter by this User Identity and locator separation network referred to as SILSN (Subscriber Identifier & LocatorSeparation Network); SILSN comprises access server (Access Service Node, ASN), subscriber equipment (User Equipment, and identify label and location register register (Identification & Locater Register, ILR) etc. UE).Wherein ASN is used for access user equipment, is responsible for the access realizing subscriber equipment, and bears the function such as charging and switching, and ILR bears position registration and the identity recognition function of user.Wherein, ASN is logic entity, can be service universal packet wireless business business (GeneralPacket Radio Service) support node (Serving GPRS Support Node, SGSN), Gateway GPRS Support Node (Gateway GPRS Support Node, GGSN), group data service node (Packet Data Serving Node, and the equipment such as BAS Broadband Access Server (Broadband RemoteAccess Server, BRAS) PDSN).Above-mentioned ILR can be key management system (Key Management System in embody rule scene, KMS), attaching position register (Home LocationRegister, HLR), home subscriber server (Home Subscriber Server, HSS), mandate/certification/accounting server (Authorization, Authentication, Accounting, AAA) and other bear the entity of end-to-end key management and negotiation functionality.
In SILSN, user is to access identifier (Access Identification, AID) (identity for identifying user) is identified, ASN is with Route Distinguisher (Route Identification, RID) identify (position for identifying user place), each user and ASN have oneself independently AID or RID.When the user of in SILSN is by user terminal (as UE1) access network, first register its position (namely register this UE1 be positioned at which ASN under) by ASN to ILR.ILR after UE1 registration, the AID setting up user and the corresponding relation of the RID of ASN accessed.If UE1 needs and UE2 communication afterwards, after UE1 sends data message, inquired about the position of UE2 to ILR by ASN1, under namely which ASN UE2 is positioned at, under UE2 is positioned at ASN9 in Fig. 1.Then data message is sent to corresponding ASN9 by ASN1, and the data message after process is sent to UE2 by ASN9 again.
Above-mentioned network well achieves the identify label of user and being separated of station location marker, when subscriber equipment moves and roams, does not need to change identify label again, ensure that the continuity of business in moving process.Routing expansion and fail safe also significantly improve.
In initial SILSN, each user can only with a kind of access way access network, SILSN does not access for plurality of access modes simultaneously and designs, when user adopts plurality of access modes access network, a different AID can only be distributed for the various access waies of each user, just having there is the situation of the corresponding multiple identify label of a user in this, has run counter to the basic demand of User Identity uniqueness in SILSN.
In prior art, when user adopts in multi-access mode access network, easily there is confusion in the data message that various access way is transmitted, thus cannot realize normal transmission.
Technical problem to be solved by this invention is to provide and a kind ofly adopts data transmission method in plurality of access modes and access device, to ensure that user is when multi-access mode, access device can distinguish the data message that various access way is transmitted, and makes user can normal transmission data message under multi-access mode.
In order to solve the problems of the technologies described above, the invention provides a kind of data transmission method adopted in plurality of access modes, described method is applied to the network that identify label is separated with station location marker, and the method comprises:
Second access node receives the data message that the first access node sends, and that records the identify label of source user and the station location marker of source user in described data message connects and binds relation; Wherein, in described data message, the station location marker of source user is the station location marker of described first access node; And
Described second access node receives the data message sending to described source user, connect and bind according to described the station location marker that relation searches the described source user of the second access node record, and this data message is sent to the first access node that the station location marker of the described source user inquired is corresponding.
Further, that records the identify label of source user equipment in described data message and station location marker connects and binds in the step of relation, connects and binds in relation described in the identify label of object user in described data message is also recorded to by described second access node;
Search in the step of the station location marker of the source user of the second access node record according to the described relation that connects and binds, described second access node searches the station location marker of the source user of described second access node record jointly according to the identify label of described object user and the identify label of source user.
Further, described method also comprises:
If described second access node successively receives the data message comprising the identify label of same source user sending to same object user, described second access node is to the station location marker of the described same source user of authentication node inquiry belonging to described same source user, and after inquiring described same source user and corresponding to the diverse location mark of different access way, described in described second access node upgrades with the station location marker that inquires, connect and bind relation.
Further, the described second access node step connecting and binding relation described in the station location marker renewal inquired comprises:
Described second access node judges that described authentication node corresponds to the station location marker whether comprising the source user in a rear data message in the diverse location mark of different access way to the described same source user that described second access node returns, if comprised, then the station location marker of the source user after the station location marker of the described source user connected and bound in relation being updated in a data message.
Further, described method also comprises:
Described second access node receives the data message of the user terminal transmission being linked into described second access node; And
The identify label of the source user of the data message whether having this user terminal to send and the identify label of object user is connected and bound in relation described in described second access node judges;
If had, from the station location marker of the identify label of the described object user connected and bound relation in the data message found out and send corresponding to user terminal, and send datagram to the access node that this station location marker is corresponding;
If no, inquire about the station location marker of described object user to the authentication node belonging to described object user, and send datagram to the access node corresponding with the station location marker that wherein a kind of access way associates inquired.
Further, after the second access node receives the step of the data message that the first access node sends, described method also comprises:
The identify label of source user in the data message whether preserving described first access node transmission and the identify label of object user is connected and bound in relation described in described second access node judges;
If no, then the step of the relation that connects and binds of the identify label of source user and the station location marker of source user in data message described in executive logging, and the data message that the first access node sends is sent to described object user.
Further, described method also comprises:
If described second access node judge described in connect and bind in relation preserved first access node send data message in the identify label of source user and the identify label of object user connect and bind relation, judge second access node preserve first access node send data message in the identify label of source user whether identical with the station location marker of source user in notebook data message with the station location marker connected and bound in relation of the identify label of object user;
If identical, the data message that the first access node sends is sent to object user;
If not identical, the authentication node belonging to source user of the data message that described second access node sends to the first access node inquires about the station location marker of described source user, and receive that this authentication node returns correspond to the diverse location mark of different access way after, judge the station location marker of the source user whether comprised in the station location marker that this authentication node returns in the data message of the first access node transmission, if comprised, send datagram to described object user.
Further, described method also comprises:
If do not comprise the station location marker of the source user in notebook data message in the station location marker that authentication node returns, described second access node abandons notebook data message.
Described second access node inquires about step from the station location marker of described user to the authentication node belonging to user comprises: described second access node sends position enquiring request to the authentication node belonging to user, carries the identify label of described user in this position enquiring request;
Described authentication node is according to the identify label of the described user carried in position enquiring request, inquire about the station location marker of this user under each access way, described access way and station location marker one_to_one corresponding, and to described second access node home position inquiry response, described position enquiring respond packet is containing the identify label of described user, the station location marker of user, and identify with each position the access way associated;
Wherein, described user comprises source user and object user.
Further, the network that described identify label is separated with station location marker is User Identity and locator separation network (SILSN); Described access node is access server (ASN), described authentication node is identify label and location register register (ILR), described identify label is access identifier (AID), and described station location marker is Route Distinguisher (RID).
In order to solve the problems of the technologies described above, the invention provides a kind of access device, be applied to the network that identify label is separated with station location marker, this access device comprises:
Receiver module, for receiving the data message that the first access device sends, described data message comprises the identify label of source user and the identify label of object user; And receive the data message sending to described source user;
Memory module, connects and binds relation for what record the identify label of source user and the station location marker of source user in described data message; Wherein, in described data message, the station location marker of source user is the station location marker of described first access device;
Search module, for receive send to described source user data message after, connect and bind from described the station location marker that relation searches the described source user of described memory module record; And
Sending module, the first access device that the station location marker for the described source user that will the data message of source user sent to send to described enquiry module to inquire is corresponding.
Further, described memory module also for record the identify label of source user and the station location marker of source user in described data message connect and bind relation time, connect and bind in relation described in the identify label of object user in described data message is recorded to;
Search module also for jointly searching the station location marker of the source user of described memory module record according to the identify label of described object user and the identify label of source user.
Further, if described receiver module successively receives the data message comprising the identify label of same source user sending to same object user, described sending module is also for inquiring about the station location marker of described source user to the authentication node belonging to described source user;
Described receiver module also identifies corresponding to the diverse location of different access way for receiving described source user that authentication node returns;
Described memory module also connects and binds relation described in upgrading with the station location marker inquired.
Further, described memory module connects and binds relation described in upgrading with the station location marker inquired as follows:
Judge that described authentication node corresponds to the station location marker whether comprising the source user in a rear data message in the diverse location mark of different access way to the described source user that described second access node returns, if comprised, then the station location marker of the source user after the station location marker of the described source user connected and bound in relation being updated in a data message.
Further, described receiver module, also for receiving the data message of the user terminal transmission being linked into described access device; And receive the station location marker that described object user that in data message that described user terminal sends, authentication node belonging to object user returns corresponds to different access way;
Describedly search module, also connect and bind in relation the identify label of the source user in the data message whether having this user terminal to send and the identify label of object user for what judge described memory module; If had, from the station location marker of the identify label of the described object user connected and bound relation in the data message found out and send corresponding to this user terminal, and sending module is indicated to send datagram; If no, indicate described sending module to inquire about the station location marker of described object user to the authentication node belonging to described object user;
Described sending module, also for after searching the instruction sent datagram of module described in receiving, the access node that the station location marker to object user is corresponding sends datagram; And search described in receiving module inquire about the instruction of the station location marker of described object user to the authentication node belonging to described object user after; Query messages is sent to the authentication node belonging to described object user; And send datagram to the access node corresponding with the station location marker that wherein a kind of access way associates recognizing that authentication node inquires belonging to object user.
Further, describedly search module, also for after the data message receiving the first access device transmission, described in judgement, connect and bind in relation the identify label of source user in the data message whether preserving the first access device transmission and the identify label of object user; If no, then what indicate the identify label of source user and the station location marker of source user in data message described in memory module record connects and binds relation, and indicates sending module that the data message that described first access device sends is sent to described object user.
Further, describedly search module, if also for judge described in connect and bind in relation preserved first access device send data message in the identify label of source user and the identify label of object user connect and bind relation, judge preserve first access device transmission data message in the identify label of source user whether identical with the station location marker of source user in the data message that the first access device sends with the station location marker connected and bound in relation of the identify label of object user; If identical, the data message that the first access device sends is sent to object user by instruction sending module; If not identical, instruction sending module inquires about the station location marker of described source user to the authentication node belonging to described source user; And the authentication node received belonging to described source user return correspond to different access way diverse location mark after, judge the station location marker of the source user whether comprised in the station location marker that described authentication node returns in the data message of the first access device transmission, if comprised, described sending module is indicated to send datagram to described object user; If do not comprised, abandon the data message that the first access device sends;
Described receiver module, also identifies for the diverse location corresponding to different access way that the authentication node received belonging to described source user returns, and sends to and search module.
Further, the network that described identify label is separated with station location marker is User Identity and locator separation network (SILSN); Described access node is access server (ASN), described authentication node is identify label and location register register (ILR), described identify label is access identifier (AID), and described station location marker is Route Distinguisher (RID).
Further, described access device comprises the one in service universal grouping wireless business supporting node (SGSN), ggsn (GGSN), group data service node (PDSN) and BAS Broadband Access Server (BRAS).
The support plurality of access modes adopting technical scheme of the present invention can realize under identify label and station location marker split-frame uses same identify label to carry out the systems approach of network communication, in the program, user terminal adopts plurality of access modes all can normal access network, and, user terminal independently can initiate business by various access way, also can not mutually conflict between Business Stream.And, when a kind of access way is unavailable, other access waies can be used, improve the continuity of business.In addition, multiple access way uses same user identifier AID, network is traced to the source simpler, improves the fail safe of network.
Summary of the invention
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the framework of SILSN;
Fig. 2 is that user terminal forward sends datagram the schematic diagram of scene;
Fig. 3 is that under the scene corresponding with Fig. 2, user terminal oppositely sends datagram schematic diagram;
Fig. 4 is that another kind of user terminal forward sends datagram the schematic diagram of scene;
Fig. 5 is the schematic diagram that under the scene corresponding with Fig. 4, user terminal oppositely sends datagram;
Fig. 6 is the schematic diagram of the confusion caused oppositely sent datagram under another scene;
Fig. 7 solves the schematic diagram of the method for the confusion that oppositely sends datagram shown in Fig. 6 for the present invention;
Fig. 8 is the flow chart of the process that in the present invention, ASN11 inquires about to ILR launch position;
Fig. 9 is the data message flow process that in application example of the present invention, ASN process local user sends;
Figure 10 is the data message flow process that in application example of the present invention, other ASN of ASN process send to the user terminal being linked into this ASN;
The structural representation of Figure 11 embodiment of the present invention access device.
Embodiment
In the network that identify label is separated with station location marker, each user has two identifiers, AID and RID, wherein the identity of AID representative of consumer, the position of RID representative of consumer.When user adopts plurality of access modes access network, in order to the uniqueness of user identity AID will be kept, AID must remain unchanged, a kind of in the network that identify label is separated with station location marker, realize user terminal as follows by the technical scheme of plurality of access modes access network: when user terminal uses different access way access network, must register at different access nodes, more precisely, be exactly same user when adopting different access, the access node of various access must possess different RID.On the basis of this technical scheme, corresponding also proposition: when user registers, access node is to the access way should carrying user during the positional information of authentication node report of user terminal simultaneously, as WLAN (wireless local area network) (Wireless Local Area Network, and Wideband Code Division Multiple Access (WCDMA) (Wide Code Division Multiplexing Access WLAN), WCDMA) etc., when such user terminal adopts plurality of access modes access network at the same time, access node reports the positional information of each access way mutually to cover to authentication node, for user terminal adopts plurality of access modes access network to create primary condition.
But, because user uses same identify label jointly when adopting plurality of access modes, there will be some new problems when data input and data output.Such as, the data flow of different access way all sends with common identity mark, these data messages are easy to be confused together at access node, if do not made an amendment the transmission of the original data message of access node and reception mechanism, data flow between these different access waies will be admixed together and cannot differentiate, and causes business normally to carry out.
The present invention is directed to the problems referred to above to propose and a kind ofly adopt data transmission method in plurality of access modes and access device, to ensure that user is when multi-access mode, access node can distinguish the data message that various access way is transmitted, and makes user can normal transmission data message under multi-access mode.
A kind of data transmission method adopted in plurality of access modes provided by the invention, be applied to the network that identify label is separated with station location marker, the method comprises:
Second access node receives the data message that the first access node sends, and that records the identify label of source user and the station location marker of source user in described data message connects and binds relation; Wherein, in described data message, the station location marker of source user is the station location marker of described first access node; And
Described second access node receives the data message sending to described source user, the station location marker that relation searches the source user of the second access node record is connected and bound according to described, and the first access node being sent to by this data message the station location marker that inquires corresponding.
Wherein, described second access node receives in the step of the data message sending to described source user:
The identify label of the source user in the identify label of the object user of this data message received the i.e. step of " the second access node receives the data message that the first access node sends, and that records the identify label of source user and the station location marker of source user in described data message connects and binds relation ";
The identify label of the object user in the identify label of the source user of this data message received the i.e. step of " the second access node receives the data message that the first access node sends, and that records the identify label of source user and the station location marker of source user in described data message connects and binds relation ".
Wherein,
In record data message the identify label of source user equipment and station location marker connect and bind in the step of relation, connect and bind in relation described in the identify label of object user in data message is also recorded to by the second access node;
Search in the step of the station location marker of the source user of the second access node record according to the relation of connecting and binding, the second access node is the station location marker of the source user jointly searching described second access node record according to the identify label of described object user and the identify label of source user.
The method also comprises:
If the second access node successively receives the data message comprising the identify label of same source user sending to same object user, second access node inquires about the station location marker of same source user to the authentication node belonging to same source user, and after inquiring same source user and corresponding to the diverse location mark of different access way, described in the second access node upgrades with the station location marker that inquires, connect and bind relation.
Wherein, the second access node step connecting and binding relation described in the station location marker renewal inquired comprises:
Second access node judges that authentication node corresponds to the station location marker whether comprising the source user in a rear data message in the diverse location mark of different access way to the described same source user that described second access node returns, if comprised, then the station location marker of the source user after the station location marker of the described source user connected and bound in relation being updated in a data message.
The method also comprises:
Second access node receives the data message of the user terminal transmission being linked into described second access node; And
Second access node connects and binds in relation the identify label of the source user of the data message whether having this user terminal to send and the identify label of object user described in judging;
If had, from the station location marker of the identify label of the described object user connected and bound relation in the data message found out and send corresponding to user terminal, and send datagram to the access node that this station location marker is corresponding;
If no, inquire about the station location marker of described object user to the authentication node belonging to described object user, and send datagram to the access node corresponding with the station location marker that wherein a kind of access way associates inquired.
Hereinafter will be described in detail to embodiments of the invention by reference to the accompanying drawings.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combination in any mutually.In embodiments of the invention, be described for SILSN, but the present invention is not limited to this, the network that other identify labels are separated with station location marker can be applied to equally.
Embodiment one:
Fig. 2 supports that the UE1 of multi-access mode initiatively initiates the schematic diagram of data (forward transmission data) business.As shown in Figure 2, UE1 adopts two kinds of access way access networks, these two kinds of access waies are respectively WLAN and GPRS (General Packet Radio Service, GPRS), wherein, WLAN corresponds to ASN1, GPRS and corresponds to ASN2, and these two kinds of access waies all send datagram with identical AID.In such a scenario, suppose that the destination of the transfer of data of two kinds of access waies is respectively UE3 and UE4.When UE1 sends datagram, the position that ASN1 and ASN2 inquires UE3 and UE4 to ILR is respectively ASN11 and ASN12, the data message that UE1 sends subsequently sends via ASN1 and ASN2 respectively, namely from UE1-> ASN1-> ASN11-> UE3, and send from UE1-> ASN2-> ASN12-> UE4.Can find out, when data message forward transmits time, object can both be arrived by normal path.
But, as shown in Figure 3, when UE3 and UE4 is to (when adopting the user terminal of plurality of access modes access network to receive data message) during UE1 reverse reverting data message, if adopt original mechanism, that is: when ASN11 receives the data message of UE3, first inquire about the position of AID to ILR, ILR will return to the position of ASN1 and ASN2.If ASN11 does not do special processing, the data message that UE3 returns may send via ASN11-ASN2-UE1, as shown by the dotted line in fig. 3.Will cause the out of order of data message like this, traffic affecting normally runs.Therefore, the reverse data message that UE3 and UE4 etc. send is received for ASN11 and ASN12 in Fig. 3, when ASN process, not only relies on Query Result, also need to do a little special processing.
In the present invention, for ensureing that the data message that UE3 returns passes to UE1 via ASN11 and ASN1, require that ASN11 is when receiving UE1 and sending to the forward data message of UE3 via ASN1, first preserve the corresponding relation of AID1 (corresponding to UE1) and RID1 (corresponding to ASN1), as AID1-> RID1, this is different with the treatment mechanism of original SILSN.In former SILSN, after the ASN that data message object user terminal accesses receives data message, initiatively do not preserve the corresponding relation of AID and the RID of source user in data message, AID and the RID corresponding relation in all ASN all comes from ILR.And in the present invention, the corresponding relation of AID and RID in ASN likely inquires from ILR, also likely come from the data message received, ASN has the ability of the corresponding relation of AID and RID of self study source user terminal from the data message received.
Embodiment two:
For a kind of scene as shown in Figure 4, when two called user terminals of the user terminal adopting plurality of access modes access network are positioned under same ASN, still can there is confusion in the transmission of data message, that is:
When data message forward transmits, namely from UE1-> ASN1-> ASN11-> UE3 and can normal transmission from UE1-> ASN2-> ASN11-> UE4.But when data message reverse transfer time, even if ASN11 has the ability of the corresponding relation of AID and RID of self study source user terminal UE 1 from the data message received, also there will be data message and send chaotic, as shown in Figure 5:
Under being positioned at same ASN11 to UE3 and UE4, when ASN11 receive UE1 to be sent to the data message of UE3 via ASN1 time, the corresponding relation AID1-> RID1 of AID1 and RID1 of UE1 can be recorded, and ASN11 receives UE1 when being dealt into the data message of UE4 via ASN2, the corresponding relation of the UE1 of record can be rewritten as AID1-> RID2 (if only record the corresponding relation of source user by source AID and source RID, can only about one group of corresponding relation of this source AID, therefore, original corresponding relation can be rewritten), this message that follow-up UE3 will be caused to be sent to UE1 also sends via ASN2, thus cause data message chaotic.
For the confusion avoiding above-mentioned same user (as UE1) to adopt the opposite end ASN11 caused during different access way access network to produce when oppositely sending datagram, in the present invention, ASN is when receiving destination that other ASN send and being the message of this ASN, record the corresponding relation of the identify label of source user, the identify label of object user and the station location marker of source user simultaneously, hereinafter this relation is referred to as the relation of connecting and binding.In the embodiment of the present invention, record the identify label of source user, the identify label of object user and the corresponding relation of the station location marker of source user and the corresponding relation of source AID, object AID and source RID.When follow-up ASN11 receives data message, by the object RID according to the identify label of object user and this data message of identify label two mark common query of source user, then send datagram to the ASN corresponding to this RID.
As: when the ASN11 AID1 received via ASN1 encapsulate forwarded is sent to the data message of AID3, preserves and connect and bind relation as follows: [AID3-> AID1]-> RID1;
When the ASN11 AID1 received via ASN2 encapsulate forwarded is sent to the data message of AID4, preserves and connect and bind relation as follows: [AID4-> AID1]-> RID2.
Thus ASN11 records AID1 respectively, and the relation that connects and binds of AID3 and RID1 and AID1, AID4 and RID2 connect and bind relation.
When ASN11 is when sending message:
Be AID1 for destination address, source address is the data message of AID3, and this data message is sent to ASN1 by ASN11;
Be AID1 for destination address, source address is the data message of AID4, and this data message is sent to ASN2 by ASN11.
Can find out, when follow-up ASN11 receive user UE3 (AID3) send to the data message of UE1 (AID1) time, because this locality has, [AID3-> AID1]-> RID1's connect and bind relation, after data message encapsulates by ASN11, destination address is set to RID1 by the relation that connects and binds that can directly store according to this locality, then sends to ASN1.In this process, ASN11 no longer will inquire about ILR.
Embodiment three:
When opposite end (UE3 as in Fig. 6) communication that a user adopts plurality of access modes simultaneously identical with by different user terminals (UE1 with UE2 as in Fig. 6), wherein different user terminals corresponds to the same identify label of this user, the reverse data flow returned from UE3 to UE1 and UE2 still there will be confusion, such as, in Fig. 6, ASN11 cannot distinguish the data message that UE3 sends and issue ASN1 or ASN2, thus the data message should issuing UE2 via ASN2 may be caused via ASN1 to be sent to UE1 (as shown in the dotted line in Fig. 6), cause data message chaotic.
Chaotic problem is sent for avoiding the above-mentioned data caused because same user adopts plurality of access modes to access same opposite end by different user terminals, the present invention is when ASN successively receives the same user AID1 transmission message coming from other ASN encapsulate forwarded, the operation of the positional information of inquiry AID1 is initiated to ILR, according to the result that ILR returns, decide processing mode, as shown in Figure 7.Wherein, ASN11 inquires about process from AID1 positional information to ILR as in Fig. 7 3., be exactly the process of SILSN inquiring position information, this position enquiring process, as Fig. 8, comprising:
Step 801:ASN11 sends position enquiring request to ILR, carries the AID1 of user in this position enquiring request;
Step 802:ILR, according to the AID1 carried in position enquiring request, inquires about the station location marker of this user under each access way, by the corresponding relation inquired being sent to ASN11 to ASN11 home position inquiry response.
Afterwards, after ASN11 receives the position enquiring response of ILR, judge whether the corresponding relation in position enquiring response comprises new RID, as RID2, if comprised, the relation that then will connect and bind is switched to RID2, that is: the relation that will connect and bind is changed to [AID3-> AID1]-> RID2 from [AID3-> AID1]-> RID1, if do not comprise new RID in position enquiring result, then do not upgrade the relation of connecting and binding.
Like this, after user adopts new access way to be connected with opposite end, original access way is replaced by new access way, and the data message of two kinds of access waies can not conflict, and business can be carried out in new connected mode.
Hereafter will introduce application example of the present invention by reference to the accompanying drawings.
The transmission of data message and reception are primarily of ASN operation, and ASN comprises data Message processing: the transmission of the data message of LUT (namely accessing the user terminal of this ASN), and receives the data message of other ASN, and forwards.
The flow process of the data message that application example one, ASN process LUT sends
The flow process of the data message that ASN process LUT sends as shown in Figure 9, comprising:
Step 901:ASN receives the message that LUT sends, and flow process starts.
Step 902:ASN is according to the source AID in data message and object AID, and what to check in this ASN whether its correspondence existing connects and binds relation, if had, performs step 910, if do not had, performs step 903.
Wherein, when ASN according to the source AID in data message and object AID to be checked through in this ASN active AID and object AID connect and bind relation time, illustrate that this ASN has received the data message be ASN that user terminal corresponding to this object AID access and sent, this connects and binds the object RID of RID in relation and notebook data message.
When ASN according to the source AID in data message and object AID be checked through in this ASN do not have source AID and object AID connect and bind relation time, illustrate that this ASN does not also receive the data message be object AID in notebook data message and sent to the source AID in notebook data message.
Step 903: the source AID if there is no in this data message and object AID connects and binds relation, ASN inquires about the positional information of object AID to ILR;
Step 904:ILR returns the positional information of many groups access way of object AID to ASN.
Step 905:ASN chooses a kind of access way, and after the binding relationship that connects, as [AID1-> AID3]-> RID11, the ASN (as ASN11) corresponding to selected access way sends datagram, and terminates.
Wherein, when ASN chooses access way, it is the rule interestingness arranged according to user or operator
Step 910: if there is the relation of connecting and binding, as [AID1-> AID3]-> RID11, then directly to send datagram to the ASN that RID11 is corresponding by the existing relation that connects and binds.
Other ASN of application example two, ASN process send to the flow process of the data message of the user terminal of this ASN of access
Step 1001: if ASN receives the user terminal data message that other ASN send to this ASN of access, flow process starts.
Step 1002:ASN checks that the source AID's that whether this ASN existed and has carried in this data message and object AID connects and binds relation, if existed, performs step 1003, if there is no, performs step 1010.
Wherein, object AID is the AID corresponding to user terminal of this ASN of access.
Step 1003: if existed, then check that in notebook data message, whether the source RID carried and the source AID that this ASN stores be identical with the RID connected and bound in relation of object AID, if identical, perform step 1020; If not identical, perform step 1004; Wherein, the AID that pass is source user is connected and bound, the RID of the ASN that the AID of object user and source user access;
Step 1004: if different, user from ASN to source AID belonging to ILR inquire about the positional information of this source AID.
Step 1005:ILR returns positional information corresponding to many groups access way of this source AID to this ASN.
Step 1006: after ASN receives the Query Result of ILR, judges the source RID whether comprised in the positional information that ILR returns in data message, if comprised, performs step 1007, if do not comprised, performs step 1030;
Step 1007: if comprise new RID in position enquiring result, the relation that then will connect and bind is switched to new RID (connecting and binding RID in the relation source RID more in notebook data message by former), and to user terminal to transmit data message corresponding to object AID, terminate;
Step 1010: if ASN checks that the source AID's that this ASN do not exist and carries in this data message and object AID connects and binds relation, what ASN preserved this source AID connects and binds relation, the user terminal then sending to object AID corresponding data message, terminates.
Step 1020: if check that the source RID carried in this data message is identical with the RID connected and bound in relation of object AID with the source AID that this ASN stores, then directly to the user terminal to transmit data message that this object AID is corresponding, terminates.
Step 1030: if ASN judges the source RID do not comprised in the positional information that ILR returns in data message, then abandon data message, terminates.
Consider if current is do not comprise new RID in the positional information that returns of the ILR caused due to switching, also can to ASN forwarding data packets corresponding to new RID in this step.
The present embodiment additionally provides a kind of access device, and as shown in figure 11, be applied to the network that identify label is separated with station location marker, this access device comprises:
Receiver module, for receiving the data message that the first access device sends, described data message comprises the identify label of source user and the identify label of object user; And receive the data message sending to described source user;
Memory module, connects and binds relation for what record the identify label of source user and the station location marker of source user in described data message; Wherein, in described data message, the station location marker of source user is the station location marker of described first access device;
Search module, for receive send to described source user data message after, connect and bind from described the station location marker that relation searches the described source user of described memory module record; And
Sending module, the first access device that the station location marker for the described source user that will the data message of source user sent to send to described enquiry module to inquire is corresponding.
Preferably, described memory module also for record the identify label of source user and the station location marker of source user in described data message connect and bind relation time, connect and bind in relation described in the identify label of object user in described data message is recorded to;
Search module also for jointly searching the station location marker of the source user of described memory module record according to the identify label of described object user and the identify label of source user.
Wherein, if described receiver module successively receives the data message comprising the identify label of same source user sending to same object user, described sending module is also for inquiring about the station location marker of described source user to the authentication node belonging to described source user;
Described receiver module also identifies corresponding to the diverse location of different access way for receiving described source user that authentication node returns;
Described memory module also connects and binds relation described in upgrading with the station location marker inquired.
Wherein, described memory module connects and binds relation described in upgrading with the station location marker inquired as follows:
Obtain from described receiver module described source user that authentication node returns to identify corresponding to the diverse location of different access way, judge that described authentication node corresponds to the station location marker whether comprising the source user in a rear data message in the diverse location mark of different access way to the described source user that described second access node returns, if comprised, then the station location marker of the source user after the station location marker of the described source user connected and bound in relation being updated in a data message.
Wherein, described receiver module, also for receiving the data message of the user terminal transmission being linked into described access device; And receive the station location marker that described object user that in data message that described user terminal sends, authentication node belonging to object user returns corresponds to different access way;
Describedly search module, also connect and bind in relation the identify label of the source user in the data message whether having this user terminal to send and the identify label of object user for what judge described memory module; If had, from the station location marker of the identify label of the described object user connected and bound relation in the data message found out and send corresponding to this user terminal, and sending module is indicated to send datagram; If no, indicate described sending module to inquire about the station location marker of described object user to the authentication node belonging to described object user;
Described sending module, also for after searching the instruction sent datagram of module described in receiving, the access node that the station location marker to object user is corresponding sends datagram; And search described in receiving module inquire about the instruction of the station location marker of described object user to the authentication node belonging to described object user after; Query messages is sent to the authentication node belonging to described object user; And the access node corresponding with the station location marker that wherein a kind of access way associates to inquire to the authentication node belonging to object user sends datagram.
Wherein, describedly search module, also for after the data message receiving the first access device transmission, described in judgement, connect and bind in relation the identify label of source user in the data message whether preserving the first access device transmission and the identify label of object user; If no, then what indicate the identify label of source user and the station location marker of source user in data message described in memory module record connects and binds relation, and indicates sending module that the data message that described first access device sends is sent to described object user.
Wherein, describedly search module, if also for judge described in connect and bind in relation preserved first access device send data message in the identify label of source user and the identify label of object user connect and bind relation, judge preserve first access device transmission data message in the identify label of source user whether identical with the station location marker of source user in the data message that the first access device sends with the station location marker connected and bound in relation of the identify label of object user; If identical, the data message that the first access device sends is sent to object user by instruction sending module; If not identical, instruction sending module inquires about the station location marker of described source user to the authentication node belonging to described source user; And the authentication node received belonging to described source user return correspond to different access way diverse location mark after, judge the station location marker of the source user whether comprised in the station location marker that described authentication node returns in the data message of the first access device transmission, if comprised, described sending module is indicated to send datagram to described object user; If do not comprised, abandon the data message that the first access device sends;
Described receiver module, also identifies for the diverse location corresponding to different access way that the authentication node received belonging to described source user returns, and sends to and search module.
Wherein, the network that described identify label is separated with station location marker can be User Identity and locator separation network (SILSN); Described access node is access server (ASN), described authentication node is identify label and location register register (ILR), described identify label is access identifier (AID), and described station location marker is Route Distinguisher (RID).
Wherein, described access device comprises the one in service universal grouping wireless business supporting node (SGSN), ggsn (GGSN), group data service node (PDSN) and BAS Broadband Access Server (BRAS).
The all or part of step that one of ordinary skill in the art will appreciate that in said method is carried out instruction related hardware by program and is completed, and described program can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can use one or more integrated circuit to realize.Correspondingly, each module/unit in above-described embodiment can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range described in claim.

Claims (17)

1. adopt the data transmission method in plurality of access modes, it is characterized in that, described method is applied to the network that identify label is separated with station location marker, and the method comprises:
Second access node receives the data message that the first access node sends, and that records the identify label of source user and the station location marker of source user in described data message connects and binds relation; Wherein, in described data message, the station location marker of source user is the station location marker of described first access node; That records the identify label of source user equipment in described data message and station location marker connects and binds in the step of relation, connects and binds in relation described in the identify label of object user in described data message is also recorded to by described second access node; And
Described second access node receives the data message sending to described source user, connect and bind according to described the station location marker that relation searches the described source user of the second access node record, and this data message is sent to the first access node that the station location marker of the described source user inquired is corresponding; Search in the step of the station location marker of the source user of the second access node record according to the described relation that connects and binds, described second access node searches the station location marker of the source user of described second access node record jointly according to the identify label of described object user and the identify label of source user.
2. the method for claim 1, is characterized in that, described method also comprises:
If described second access node successively receives the data message comprising the identify label of same source user sending to same object user, described second access node is to the station location marker of the described same source user of authentication node inquiry belonging to described same source user, and after inquiring described same source user and corresponding to the diverse location mark of different access way, described in described second access node upgrades with the station location marker that inquires, connect and bind relation.
3. method as claimed in claim 2, is characterized in that, the step connecting and binding relation described in described second access node upgrades with the station location marker inquired comprises:
Described second access node judges that described authentication node corresponds to the station location marker whether comprising the source user in a rear data message in the diverse location mark of different access way to the described same source user that described second access node returns, if comprised, then the station location marker of the source user after the station location marker of the described source user connected and bound in relation being updated in a data message.
4. the method for claim 1, is characterized in that, described method also comprises:
Described second access node receives the data message of the user terminal transmission being linked into described second access node; And
The identify label of the source user of the data message whether having this user terminal to send and the identify label of object user is connected and bound in relation described in described second access node judges;
If had, from the station location marker of the identify label of the described object user connected and bound relation in the data message found out and send corresponding to user terminal, and send datagram to the access node that this station location marker is corresponding;
If no, inquire about the station location marker of described object user to the authentication node belonging to described object user, and send datagram to the access node corresponding with the station location marker that wherein a kind of access way associates inquired.
5. the method for claim 1, is characterized in that, after the second access node receives the step of the data message that the first access node sends, described method also comprises:
The identify label of source user in the data message whether preserving described first access node transmission and the identify label of object user is connected and bound in relation described in described second access node judges;
If no, then the step of the relation that connects and binds of the identify label of source user and the station location marker of source user in data message described in executive logging, and the data message that the first access node sends is sent to described object user.
6. method as claimed in claim 5, it is characterized in that, described method also comprises:
If described second access node judge described in connect and bind in relation preserved first access node send data message in the identify label of source user and the identify label of object user connect and bind relation, judge second access node preserve first access node send data message in the identify label of source user whether identical with the station location marker of source user in notebook data message with the station location marker connected and bound in relation of the identify label of object user;
If identical, the data message that the first access node sends is sent to object user;
If not identical, the authentication node belonging to source user of the data message that described second access node sends to the first access node inquires about the station location marker of described source user, and receive that this authentication node returns correspond to the diverse location mark of different access way after, judge the station location marker of the source user whether comprised in the station location marker that this authentication node returns in the data message of the first access node transmission, if comprised, send datagram to described object user.
7. method as claimed in claim 6, it is characterized in that, described method also comprises:
If do not comprise the station location marker of the source user in notebook data message in the station location marker that authentication node returns, described second access node abandons notebook data message.
8. the method as described in claim 2 or 4 or 5, is characterized in that:
Described second access node inquires about step from the station location marker of described user to the authentication node belonging to user comprises: described second access node sends position enquiring request to the authentication node belonging to user, carries the identify label of described user in this position enquiring request;
Described authentication node is according to the identify label of the described user carried in position enquiring request, inquire about the station location marker of this user under each access way, described access way and station location marker one_to_one corresponding, and to described second access node home position inquiry response, described position enquiring respond packet is containing the identify label of described user, the station location marker of user, and identify with each position the access way associated;
Wherein, described user comprises source user and object user.
9. the method according to any one of claim 1 to 7, is characterized in that, the network that described identify label is separated with station location marker is User Identity and locator separation network SILSN; Described access node is access server ASN, and authentication node is identify label and location register register ILR, and described identify label is access identifier AID, and described station location marker is Route Distinguisher RID.
10. an access device, is characterized in that, is applied to the network that identify label is separated with station location marker, and this access device comprises:
Receiver module, for receiving the data message that the first access device sends, described data message comprises the identify label of source user and the identify label of object user; And receive the data message sending to described source user;
Memory module, connects and binds relation for what record the identify label of source user and the station location marker of source user in described data message; Wherein, in described data message, the station location marker of source user is the station location marker of described first access device; Described memory module also for record the identify label of source user and the station location marker of source user in described data message connect and bind relation time, connect and bind in relation described in the identify label of object user in described data message is recorded to;
Search module, for receive send to described source user data message after, connect and bind from described the station location marker that relation searches the described source user of described memory module record; Describedly search module also for jointly searching the station location marker of the source user of described memory module record according to the identify label of described object user and the identify label of source user; And
Sending module, for by send to the data message of source user send to described in search the first access device corresponding to the station location marker of the described source user that module polls arrives.
11. access devices as claimed in claim 10, is characterized in that:
If described receiver module successively receives the data message comprising the identify label of same source user sending to same object user, described sending module is also for inquiring about the station location marker of described source user to the authentication node belonging to described source user;
Described receiver module also identifies corresponding to the diverse location of different access way for receiving described source user that authentication node returns;
Described memory module also connects and binds relation described in upgrading with the station location marker inquired.
12. access devices as claimed in claim 11, is characterized in that, described memory module connects and binds relation described in upgrading with the station location marker inquired as follows:
Judge that described authentication node corresponds to the station location marker whether comprising the source user in a rear data message in the diverse location mark of different access way to the described source user that described receiver module returns, if comprised, then the station location marker of the source user after the station location marker of the described source user connected and bound in relation being updated in a data message.
13. access devices as claimed in claim 10, is characterized in that:
Described receiver module, also for receiving the data message of the user terminal transmission being linked into described access device; And receive the station location marker that described object user that in data message that described user terminal sends, authentication node belonging to object user returns corresponds to different access way;
Describedly search module, also connect and bind in relation the identify label of the source user in the data message whether having this user terminal to send and the identify label of object user for what judge described memory module; If had, from the station location marker of the identify label of the described object user connected and bound relation in the data message found out and send corresponding to this user terminal, and sending module is indicated to send datagram; If no, indicate described sending module to inquire about the station location marker of described object user to the authentication node belonging to described object user;
Described sending module, also for after searching the instruction sent datagram of module described in receiving, the access node that the station location marker to object user is corresponding sends datagram; And search described in receiving module inquire about the instruction of the station location marker of described object user to the authentication node belonging to described object user after; Query messages is sent to the authentication node belonging to described object user; And send datagram to the access node corresponding with the station location marker that wherein a kind of access way associates recognizing that authentication node inquires belonging to object user.
14. access devices as claimed in claim 10, is characterized in that:
Describedly search module, also for after receiving the data message that the first access device sends, connect and bind described in judgement in relation and whether preserve the identify label of source user in data message that the first access device sends and the identify label of object user; If no, then what indicate the identify label of source user and the station location marker of source user in data message described in memory module record connects and binds relation, and indicates sending module that the data message that described first access device sends is sent to described object user.
15. access devices as claimed in claim 14, is characterized in that:
Describedly search module, if also for judge described in connect and bind in relation preserved first access device send data message in the identify label of source user and the identify label of object user connect and bind relation, judge preserve first access device transmission data message in the identify label of source user whether identical with the station location marker of source user in the data message that the first access device sends with the station location marker connected and bound in relation of the identify label of object user; If identical, the data message that the first access device sends is sent to object user by instruction sending module; If not identical, instruction sending module inquires about the station location marker of described source user to the authentication node belonging to described source user; And the authentication node received belonging to described source user return correspond to different access way diverse location mark after, judge the station location marker of the source user whether comprised in the station location marker that described authentication node returns in the data message of the first access device transmission, if comprised, described sending module is indicated to send datagram to described object user; If do not comprised, abandon the data message that the first access device sends;
Described receiver module, also identifies for the diverse location corresponding to different access way that the authentication node received belonging to described source user returns, and sends to and search module.
16. access devices according to any one of claim 10 to 15, is characterized in that:
The network that described identify label is separated with station location marker is User Identity and locator separation network SILSN; Described access node is access server ASN, and authentication node is identify label and location register register ILR, and described identify label is access identifier AID, and described station location marker is Route Distinguisher RID.
17. access devices according to any one of claim 10 to 15, is characterized in that:
Described access device comprises the one in service universal grouping wireless business supporting node SGSN, ggsn GGSN, group data service node PDSN and BAS Broadband Access Server BRAS.
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