CN101193117A - Intercommunication method, access network and wireless network between terminals - Google Patents

Intercommunication method, access network and wireless network between terminals Download PDF

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Publication number
CN101193117A
CN101193117A CNA200710129406XA CN200710129406A CN101193117A CN 101193117 A CN101193117 A CN 101193117A CN A200710129406X A CNA200710129406X A CN A200710129406XA CN 200710129406 A CN200710129406 A CN 200710129406A CN 101193117 A CN101193117 A CN 101193117A
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business stream
terminal
access network
unit
target
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CN101193117B (en
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李修奕
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Changzhou Xiaoguo Information Services Co ltd
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Huawei Technologies Co Ltd
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Priority claimed from CN 200610145967 external-priority patent/CN1988492A/en
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Priority to CN200710129406XA priority Critical patent/CN101193117B/en
Priority to PCT/CN2007/070378 priority patent/WO2008064584A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service

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  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The invention provides a method for terminal intercommunication in the wireless network based on MIP, which comprises the following steps: the access network corresponding to the source terminal receives the service flow sent by the source terminal; if the target terminal of the service flow and the source terminal are under the same core network but correspond to different access networks, the access network corresponding to the source terminal directly transmits the service flow to the access network corresponding to the target terminal; the access network corresponding to the target terminal transmits the service flow to the target terminal. The invention also provides an access network in the wireless network based on the MIP, a WiMAX network architecture ASN, a wireless network based on the MIP and a WiMAX network architecture. In the invention, as the service flow between terminals corresponding to different access networks under the same core network is transmitted directly between the access networks and participation of the core network is unnecessary, the terminal intercommunication can reduce the load of the core network.

Description

The method of intercommunication, Access Network and wireless network between the terminal
Technical field
The present invention relates to wireless communication technology, relate in particular to based on Mobile Internet Protocol (Mobile InternetProtocol, interworking technology between the terminal in wireless network MIP).
Background technology
Wireless network is one of focus of research at present, and it comprises polytype network, for example micro-wave access to global intercommunication (Worldwide InteroperabilityMicrowave Access, the WiMAX) network mentioned of IEEE802.16 standard.The WiMAX network technology is a kind of wireless MAN (WMAN) technology, and this technology has proposed a kind of new air-interface standard at microwave and millimeter wave frequency band.WiMAX is a kind of emerging wireless communication technology, is used for transmitting wireless signals, and it can provide towards the high speed of the Internet and connect, and uses this technology, and the user can carry out data communication with interior scope with very fast speed at 50 kilometers.
WiMAX Forum is found in April 9 calendar year 2001, is a non-profit organization by the common foundation of leading communication new product and equipment company.This tissue not only will be set up a whole set of based on standards such as IEEE802.16 standards, also is devoted to the work of a series of broadband wireless access market developments of making greater efforts to promote such as expansion in exploration, the market of analysis, the application model of research, the demand of the BWA that can run simultaneously.This tissue has been set up certification work group (CWG), technical work group (TWG), frequency spectrum working group (RWG), market working group (MWG), demand working group (SPWG), network work group (NWG) and application study working group (AWG).
Network work group (Network Working Group, NWG), promptly formulate the working group of the WiMAX network standard, it is present working group active and the most of greatest concern, the action of this working group mainly concentrates on the formulation of network element, functional entity, message and agreement outside IEEE802.16 standard and the core net, carries out clear and definite definition and description for the part that does not define in the existing standard and relate to.The target of this working group is: set up network reference model end to end, satisfy the demand that working group of WiMAX Forum operator proposes; Formulate the network standard end to end, functional entity in the define grid and network interface; For the intercommunication of WiMAX system authentication lays the foundation.
The network work group is divided into three phases to the formulation of the network standard, and wherein, the focus of second stage is the definition of network architecture reference model, the description of reference point, the definition of network function and the explanation of agreement and flow process.
Present WiMAX network reference model as shown in Figure 1, the WiMAX network comprises subscriber station (Subscribe Station, SS)/travelling carriage (Mobile Subscribe Station, MS), access service network (Access Service Network, ASN) and connectivity serving network (Connectivity ServiceNetwork, CSN), wherein, MS is by air interface reference point 1 (Reference Point 1, R1) insert ASN, be connected by Interface R4 between ASN and other ASN, be connected by Interface R3 between ASN and the CSN, interface between MS and the CSN is logic interfacing R2, carries as actual physical by R1 interface and Interface R3.ASN is used to provide wireless access control, and CSN is used to provide Internet protocol (Internet Protocol, IP) connection management.
When travelling carriage in roaming scence following time, for the WiMAX travelling carriage, by logic interfacing R2 respectively with visited network service provider (Visited Network Service Provider, Visited NSP or V-NSP) and (the Home Network Service Provider of home network services operator, Home NSP or H-NSP) communication, connect by the R5 interface between visited network service provider and the home network services operator.Network provides roaming service for the user, and the user still can enjoy the WiMAX service after moving to the strange land.
Fig. 2 is the networking schematic diagram of access service network.As shown in Figure 2, access service network comprises base station (Base Station, BS) and access service network gateway (ASN Gateway, ASN GW), wherein, interface between the BS is the R8 interface, interface between BS and the ASN GW is the R6 interface, ASNGW can be intended gateway (Target Gateway, TGW), gateway (Service Gateway, SGW) and anchor gateway (Anchor Gateway, AGW), interface between each ASN GW is an Interface R4, and the interface between ASN GW and the CSN is an Interface R3.
In network model shown in Figure 1, MIP is used to realize striding the terminal mobility management of ASN, and according to concrete realization difference, WiMAX Forum has defined two kinds of optional MIP schemes: a kind of is that proxy mode moves IP (Proxy Mobile IP, PMIP), another kind be client mode move IP (ClientMobile IP, CMIP).
In the PMIP scheme, the MIP client is positioned at the ASN network, and on behalf of MS, it carry out the R3 mobile management, and all MIP controls are all finished at network side, and its process is transparent to MS.(Dynamic Host Configuration Protocol DHCP) obtains own IP address from network to MS, and carries out communication by the IP address and the network of acquisition by DHCP.ASN need replace MS to finish the registration of MIP and delivering of data.
In the CMIP scheme, the MIP client is arranged in MS, the function of the MIP client of complete.MS need know the process details of MIP fully, comprises that the registration of MIP and registration refresh.
At present, in based on above-mentioned two kinds of MIP schemes, the data passes access diagram from CSN to MS respectively as shown in Figures 3 and 4.
In Fig. 3, the PMIP client is at home agent (Home Agent, HA) Care-of Address of registration is core net address (Core of Address in, CoA), (home address of MS is attachment point address (Point of Attachment for Foreign Agent, address FA) to be the external agent, PoA), i.e. the address that obtains by DHCP or other approach of MS.Wherein, DP Fn provides R6 interface data channel function, and 802.16e CS represents the convergence sub-layer of 802.16e agreement, L2 presentation layer 2, Payload represents load, MIP tunnel represents the MIP tunnel, Tunnel ID represents Tunnel Identifier, and Intra-ASN Data Path represents the ASN internal data path.
In Fig. 4, the Care-of Address that the CMIP client is registered in HA is CoA, is the address of FA, and the home address of MS is HoA, and promptly MS is by the address of MIP registration or the acquisition of other approach.
Under above-mentioned two kinds of patterns, data passes approach between the MS during intercommunication as shown in Figure 5, wherein, 802.16e Function provides the function of 802.16e agreement defined, the datapath function unit (DP Fn) provide R6 interface data channel function, Router is a router, and Server is a server.In Fig. 5, the addressing of MS 1 and MS2 all utilizes its HoA to carry out, and in the WiMAX network, MS has the characteristic on its another part of the country link forever, so all Business Streams that send to MS all need to transmit through HA.In this case, the Business Stream between MS all must be transmitted by HA on which direction, and this will certainly increase the load of R3 tunnel and HA.
In actual applications, use the wireless network of the other types of MIP also to have same problem.If with the Access Network of the ASN in the WiMAX network corresponding to the other types wireless network, with the core net of the CSN in the WiMAX network corresponding to the other types wireless network, then in the wireless network of other types, Business Stream between the terminal (corresponding to the MS in the WiMAX network) must be transmitted through the core net in the wireless network, so, in the wireless network of other types, the Business Stream between the terminal can increase the load of core net equally.
Summary of the invention
The technical problem that the embodiment of the invention will solve is to provide a kind of method based on intercommunication between the terminal in the wireless network of MIP, based on the ASN of the Access Network in the wireless network of MIP, the WiMAX network architecture, based on the wireless network and the WiMAX network architecture of MIP, during in order to intercommunication between terminal, the load that alleviates core net.
For solving the problems of the technologies described above, the embodiment of the invention provides a kind of method based on intercommunication between the terminal in the wireless network of MIP, comprising: the Business Stream that the Access Network reception sources terminal of source terminal correspondence is sent; Under the core net but corresponding different Access Network, then the Access Network of source terminal correspondence directly is dealt into described Business Stream the Access Network of target terminal correspondence if the target terminal of described Business Stream and described source terminal coexist; The Access Network of target terminal correspondence is dealt into target terminal with described Business Stream.
It is a kind of based on the Access Network in the wireless network of MIP that the embodiment of the invention also provides, comprise: Business Stream is redirected the unit, be used to transmit two Business Streams between the terminal, wherein, if two terminals coexist under the core net but corresponding different Access Network, and described Business Stream is redirected the corresponding source terminal in unit, and then described Business Stream is redirected the Business Stream that source terminal is sent the unit and directly is forwarded to the redirected unit of target terminal corresponding service stream; If two terminals coexist under the core net but corresponding different Access Network, and described Business Stream is redirected the corresponding target terminal in unit, and then described Business Stream is redirected the unit and directly is redirected the unit from source terminal corresponding service stream and receives Business Stream.
The embodiment of the invention also provides a kind of ASN of the WiMAX network architecture, comprise R6 interface data channel function unit and external agent FA unit, also comprise: Business Stream is redirected the unit, be arranged between R6 interface data channel function unit and the FA unit, be used to transmit two Business Streams between the MS, wherein, following but the corresponding different ASN of a CSN if two MS coexist, and described Business Stream is redirected the corresponding source MS in unit, and then described Business Stream is redirected the Business Stream that source MS is sent the unit and directly is forwarded to the redirected unit of target MS corresponding service stream; If two MS coexist a CSN down but corresponding different ASN, and described Business Stream is redirected the corresponding target MS in unit, then described Business Stream is redirected the unit and directly is redirected the unit from source MS corresponding service stream and receives Business Stream.
The embodiment of the invention also provides a kind of wireless network based on MIP, comprise terminal, Access Network and core net, described Access Network is used to transmit two Business Streams between the terminal, wherein, if two terminals coexist under the core net but corresponding different Access Network, and the corresponding source terminal of described Access Network, the Business Stream that then described Access Network sends source terminal directly is forwarded to the Access Network of target terminal correspondence; If two terminals coexist under the core net but corresponding different Access Network, and the corresponding target terminal of described Access Network, then described Access Network directly receives Business Stream from the Access Network of source terminal correspondence.
The embodiment of the invention also provides a kind of WiMAX network architecture, comprise MS, ASN and CSN, described ASN is used to transmit two Business Streams between the MS, wherein, following but the corresponding different ASN of a CSN if two MS coexist, and the corresponding source MS of described ASN, the Business Stream that then described ASN sends source MS directly is forwarded to the ASN of target MS correspondence; Following but the corresponding different ASN of a CSN if two MS coexist, and the corresponding target MS of described ASN, then described ASN directly receives Business Stream from the ASN of source MS correspondence.
Compared with prior art, the embodiment of the invention has the following advantages:
In an embodiment of the present invention, because the Business Stream between the terminal of the different Access Network correspondences under the same core net is directly transmitted, need not the participation of core net, between Access Network so the intercommunication between the terminal can alleviate the load of core net.
In an embodiment of the present invention, because the Business Stream between the terminal of the different Access Network correspondences under the same core net is directly transmitted between Access Network, Business Stream need not to transmit through core net again, so reduced the intercommunication time delay between the terminal.
Description of drawings
Fig. 1 is present WiMAX network reference model figure;
Fig. 2 is the networking schematic diagram of present access service network;
Fig. 3 is that CSN under the PMIP pattern is to the data passes access diagram of MS;
Fig. 4 is that CSN under the CMIP pattern is to the data passes access diagram of MS;
Fig. 5 is the data passes schematic diagram during intercommunication between the present MS;
Fig. 6 is the data passes schematic diagram during intercommunication between the MS of the embodiment of the invention;
Fig. 7 is the structural representation of the ASN of the embodiment of the invention;
Fig. 8 is the networking schematic diagram of the WiMAX network architecture of the embodiment of the invention;
Fig. 9 is the structural representation of the cdma network of the embodiment of the invention.
Embodiment
Below we will be in conjunction with the accompanying drawings, optimum implementation of the present invention is described in detail.
At first the overall technical architecture to interoperability methods between the terminal of the embodiment of the invention describes.At first need to prove, interoperability methods can be based on the WiMAX network between the terminal of the embodiment of the invention, also can insert (CDMA based on code division multiple access, Code Division Multiple Access) system, the CDMA2000 system, 3GPP Long Term Evolution (LTE, Long Term Evolution) system, 3GPP2 evolution (the AIE that eats dishes without rice or wine, Air Interface Evolution) system/super mobile broadband (UMB, Ultra mobileBroadband) system and WLAN (wireless local area network) (WLAN, Wireless Local Area Network) etc. use the wireless network of MIP, wherein, in the WiMAX network, terminal is MS.In addition, in cdma system, Access Network can be by base station transceiver (BTS, Base Transceiver Station), base station controller (BSC, Base Station Controller) and packet data service network (PDSN, Packet DataService Network) form, core net can be made up of aaa server (AAA Server), HA etc.; In the LTE system, Access Network can be by the base station (eNB of evolution, eNodeB), IAD (aGW) forms, core net can be by compositions such as policy and charging control device server (PCC Server, Policy and ChargingController Server), HA.
Method embodiment of the present invention comprises: the Business Stream that the Access Network reception sources terminal of source terminal correspondence is sent; Under the core net but corresponding different Access Network, then the Access Network of source terminal correspondence directly is dealt into described Business Stream the Access Network of target terminal correspondence if the target terminal of described Business Stream and described source terminal coexist; The Access Network of target terminal correspondence is dealt into target terminal with described Business Stream.
In the embodiment of said method, under the core net and corresponding identical Access Network, then the Access Network of source terminal correspondence can directly be dealt into target terminal with described Business Stream if the target terminal of described Business Stream and described source terminal coexist.
In the embodiment of said method, if the target terminal of described Business Stream and described source terminal be not under same core net, then the Access Network of source terminal correspondence can be dealt into described Business Stream the core net of source terminal correspondence, the core net of source terminal correspondence is dealt into described Business Stream the core net of target terminal correspondence, the core net of target terminal correspondence is dealt into the Access Network of target terminal correspondence with described Business Stream, and the Access Network of target terminal correspondence is dealt into target terminal with described Business Stream.
In the embodiment of said method, can also comprise before sending after the Business Stream that the Access Network reception sources terminal of source terminal correspondence is sent and with described Business Stream: determine the Access Network of target terminal correspondence, perhaps determine the core net and the Access Network of target terminal correspondence.
Can determine the Access Network of target terminal correspondence at least according to following a kind of mode: the mapping relations between traffic stream identifier, the destination terminal addresses that inquiry is preserved the in advance Access Network corresponding with it, with the Access Network of definite target terminal correspondence; To the Access Network of source terminal correspondence and/or the Access Network of core net query aim terminal correspondence; The Access Network of all the Access Network query aim terminal correspondences under same core net.
Can determine the core net of target terminal correspondence at least according to following a kind of mode: the mapping relations between Access Network that traffic stream identifier, the destination terminal addresses that inquiry is preserved in advance is corresponding with it and the corresponding core net, to determine the core net of target terminal correspondence; To the Access Network of source terminal correspondence and/or the core net of core net query aim terminal correspondence.
Concrete, for the WiMAX network, between MS and corresponding CSN, the redirected unit of Internet protocol Business Stream can be set; The Business Stream of intercommunication can be redirected unit forwards via Business Stream between the MS under the same CSN.Wherein, the redirected unit of Business Stream can be arranged among the ASN.
Business Stream for intercommunication between the MS of the same ASN under the same CSN is redirected unit forwards via MS corresponding service stream, that is, MS sends Business Stream, and when the arrival Business Stream was redirected the unit, Business Stream is redirected the unit issued target MS with work flow.In this case, Business Stream is redirected unit forwards through a Business Stream, need not transmit through CSN.Business Stream 61 shown in Figure 6 can be illustrated this forwarding process.Wherein, 802.16e functional unit (802.16e Function) provides the function of 802.16e agreement defined, and the datapath function unit provides the channel function of the R6 interface data between base station BS and the access service network gateway ASNGW.
Business Stream for intercommunication between the MS under the different ASN under the same CSN also is redirected unit forwards via Business Stream, promptly, MS sends Business Stream, the MS corresponding service that Business Stream is sent in arrival flows when being redirected the unit, the MS corresponding service stream that sends Business Stream is redirected the unit issues the redirected unit of target MS corresponding service stream with work flow, and target MS corresponding service stream is redirected the unit issues work flow target MS again.In this case, Business Stream need be transmitted between two ASN, need not transmit through CSN.Business Stream 62 shown in Figure 6 can be illustrated this forwarding process.
Business Stream or other Business Streams for intercommunication between the MS under the different CSN also can be redirected unit forwards via Business Stream, promptly, MS sends Business Stream, the MS corresponding service that Business Stream is sent in arrival flows when being redirected the unit, the MS corresponding service stream that sends Business Stream is redirected the CSN that work flow is issued the MS correspondence of sending Business Stream in the unit, if the destination of Business Stream is the MS under other CSN, the CSN that then sends the MS correspondence of Business Stream is dealt into the CSN of target MS correspondence with work flow, and the CSN of target MS correspondence is dealt into work flow target MS again; If the destination of Business Stream is other network nodes, server for example, the CSN that then sends the MS correspondence of Business Stream is dealt into other network nodes with work flow.In this case, Business Stream need or be transmitted between a plurality of CSN through a CSN.Business Stream 63 shown in Figure 6 can be illustrated this forwarding process.
When the Business Stream arrival Business Stream that MS sends is redirected the unit, Business Stream is redirected the target ip address that Business Stream need be resolved in the unit, the destination of promptly judging Business Stream whether be MS, target MS whether with the MS that sends Business Stream under same CSN and/or same ASN inferior.If target ip address is the HoA of the MS of the same ASN under the same CSN, then Business Stream is redirected the unit work flow is dealt into target MS; If target ip address is the HoA of the MS of the different ASN correspondence under the same CSN, then Business Stream is redirected the unit work flow is dealt into the ASN of target MS correspondence, and the ASN of target MS correspondence is dealt into work flow target MS again; If target ip address is the HoA of the MS under the different CSN, then Business Stream is redirected the CSN that the unit is dealt into work flow the MS correspondence of sending Business Stream, the CSN that sends the MS correspondence of Business Stream sends to the CSN of target MS correspondence with Business Stream, and the CSN of target MS correspondence is dealt into work flow target MS again.
The mode that Business Stream is redirected the unit resolves target ip address has a lot.
For example, Business Stream is redirected the unit and is provided with one and transmits, the mapping relations between the sign of the traffic stream identifier that storage has been set up in transmitting, ASN that the HoA of target MS is corresponding with target MS, and mapping relations can be following form:
(SFID，D-HoA)＝＞(ASN?ID，R4?Tunnel)，
Wherein, SFID represents traffic stream identifier, and D-HoA represents the HoA of target MS, and ASN ID represents the sign of the ASN of target MS correspondence, and R4 Tunnel represents to be used between the ASN transmit the tunnel of the Business Stream of intercommunication between the MS.
Behind the Business Stream that the MS that the redirected unit of Business Stream receives correspondence sends, at first whether inquiry exists the sign of the Business Stream of reception, the target ip address of Business Stream and the mapping relations between the ASN in transmitting, if exist, the destination that Business Stream is described is MS.
If the ASN ID in the mapping relations is the ASN ID that sends the MS correspondence of Business Stream, Business Stream is redirected the unit Business Stream directly is transmitted to target MS, and in this case, the value of R4 Tunnel is an arbitrary value, does not have practical significance.If the ASN ID in the mapping relations is the ASN ID different ASN ID corresponding with the MS that sends Business Stream, Business Stream is redirected the ASN that work flow is issued target MS correspondence in the unit, the ASN of target MS correspondence issues work flow target MS again, in this case, be used to transmit the tunnel of the Business Stream of intercommunication between the MS between two ASN of the value representation of R4 Tunnel.If the ASN ID in the mapping relations for the MS that the sends Business Stream ASN ID under same CSN not, Business Stream is redirected the CSN that work flow is issued the MS correspondence of sending Business Stream in the unit, CSN issues work flow the CSN of target MS correspondence again, the CSN of target MS correspondence issues target MS with the ASN of Business Stream by target MS correspondence with work flow again, in this case, ASN ID and R4 Tunnel value default route.
If transmit the sign of the Business Stream that does not have reception, the target ip address of Business Stream and the mapping relations between the ASN, Business Stream is redirected the unit can take following three kinds of modes to obtain about the destination information of Business Stream and/or the ASN information of destination correspondence:
1. Business Stream is redirected the unit to the destination information of the CSN of the MS correspondence of sending Business Stream inquiry about Business Stream, the CSN that sends the MS correspondence of Business Stream returns to Business Stream with Query Result and is redirected the unit, if the destination is MS, the CSN that sends the MS correspondence of Business Stream can return the ASN information of target MS correspondence, for example ASN ID etc.;
2. the ASN at the redirected place, unit of Business Stream can receive the MS information that other ASN come synchronously, the destination information about Business Stream can be inquired about in the redirected unit of Business Stream from these information, for example, certain ASN has inserted a MS, this ASN can be with the information synchronization of the MS ASN to the MS correspondence of sending Business Stream, and the ASN that sends the MS correspondence of Business Stream can collect a plurality of MS information in this way;
3. all ASNs of ASN under same CSN at the redirected place, unit of Business Stream send query requests, the destination information of inquiry facility stream, for example, the ASN at the redirected place, unit of Business Stream can reach the information of target MS to the MS of the inquiry of the ASN under all CSN that coexists target ip address correspondence under which ASN.
Business Stream is redirected the unit after the ASN information that obtains target MS information and/or target MS correspondence, set up the mapping relations between the sign of the HoA of traffic stream identifier, the target MS ASN corresponding with target MS, Business Stream is redirected the unit for the identical Business Stream of target ip address that follow-up identical MS sends, and can transmit with reference to these mapping relations.
If being redirected the unit, Business Stream learns that the destination of Business Stream is non-MS, then ASN ID and R4Tunnel value default route, and Business Stream is redirected the unit work flow is dealt into the CSN of the MS correspondence of sending Business Stream, by CSN work flow is sent out.
Be a specific embodiment provided by the invention below.
Referring again to Fig. 6, the IP address of supposing travelling carriage (MS) 1 and travelling carriage (MS) 2 is respectively 10.0.0.1 and 10.0.0.2, travelling carriage 1 is from access service network (ASN) 1 access network, travelling carriage 2 is from access service network (ASN) 2 access networks, and access service network 1 and access service network 2 belong to a connectivity serving network (CSN).At a time, travelling carriage 1 needs and travelling carriage 2 carries out the timely communication traffic of MSN, when the carrying of the IP of travelling carriage 1 packet by 802.16e functional unit (802.16eFunction) and datapath function unit (DP Fn) arrives Business Stream and be redirected unit (PacketRedirector), Business Stream is redirected the unit will resolve the destination address of this IP packet.The address of the travelling carriage 2 that if destination address is an access service network to be inserted for 2 times, and access service network 1 and access service network 2 belong to a connectivity serving network, then the R4 tunnel between access service network 1 and the access service network 2 will be initiated to set up in the redirected unit of Business Stream, in order to the data of carrying travelling carriage 1 to travelling carriage 2, and should with the R4 Tunnel Identifier travelling carriage intercommunication type, to be different from the R4 tunnel between original access service network.After the R4 tunnel was set up, Business Stream was redirected the unit travelling carriage 1 all IP packets to travelling carriage 2 is redirected on the R4 tunnel, and carries on the R4 tunnel.After access service network 2 receives the IP packet that comes from the R4 tunnel, will be different from the processing in the R4 tunnel of other type to the IP packet, with the IP packet through the datapath function unit and the 802.16e functional unit be delivered to travelling carriage 2.For the IP packet of travelling carriage 2 to travelling carriage 1 direction, processing mode is identical.
Here need to prove that under the WiMAX network architecture, the method for intercommunication can be applied under PMIP and the CMIP pattern between the MS, also can be applied under other MIP patterns.
The present invention is except that providing method embodiment, embodiment based on the Access Network in the wireless network of MIP also is provided, comprise: Business Stream is redirected the unit, be used to transmit two Business Streams between the terminal, wherein, if two terminals coexist under the core net but corresponding different Access Network, and described Business Stream is redirected the corresponding source terminal in unit, and then described Business Stream is redirected the Business Stream that source terminal is sent the unit and directly is forwarded to target terminal corresponding service stream and is redirected the unit; If two terminals coexist under the core net but corresponding different Access Network, and described Business Stream is redirected the corresponding target terminal in unit, and then described Business Stream is redirected the unit and directly is redirected the unit from source terminal corresponding service stream and receives Business Stream.
In the embodiment of above-mentioned Access Network, if described Business Stream is redirected simultaneously corresponding described two terminals in unit, then described Business Stream is redirected the unit can directly be dealt into target terminal with described work flow after receiving the Business Stream that source terminal sends.
Be that example describes with the WiMAX network below.Fig. 7 is the structural representation based on the ASN of the WiMAX network architecture.As shown in Figure 7, ASN701 comprises that Business Stream is redirected unit (PacketRedirector) 7011,802.16e functional unit (802.16e Function) 7012, datapath function unit (DP Fn) 7013, external agent unit (FA) 7014, authentication ' unit (Authenticator) 7015 and MIP client (MIP Client) 7016,802.16e functional unit 7012 provides the function of 802.16e agreement defined, datapath function unit 7013 provides the R6 interface data channel function between base station BS and the access service network gateway ASN GW, external agent unit 7014 provides foreign agent functionality, authentication ' unit 7015 provides authentication function, wherein, 802.16e functional unit 7012 is arranged between datapath function unit 7013 and the authentication ' unit 7015, MIP client 7016 is connected with external agent unit 7014.Business Stream is redirected unit 7011 and is arranged between datapath function unit 7013 and the external agent unit 7014, is used to transmit the Business Stream between the MS under the same CSN.Business Stream is redirected unit 7011 and comprises: the target ip address parsing module is used to resolve the target ip address of the Business Stream that corresponding MS sends; The mapping relations administration module is used for the mapping relations of the sign of the HoA of sign, target MS of the managed traffic flow ASN corresponding with target MS.
For at the Business Stream of intercommunication between the MS under the ASN701 shown in Figure 7, can be redirected unit 7011 at Business Stream transmits, promptly, Business Stream arrives the redirected unit 7011 of Business Stream through the carrying of 802.16e functional unit 7012, datapath function unit 7013 successively, if being redirected unit 7011, Business Stream finds that the destination of Business Stream is the MS under the ASN701, then Business Stream is passed through successively the carrying of datapath function unit 7013,802.16e functional unit 7012, be forwarded to target MS.
Business Stream for intercommunication between the MS under the different ASN under the same CSN, can between ASN701 shown in Figure 7 and another ASN, transmit, specifically, can be redirected between the unit at the Business Stream among the redirected unit 7011 of Business Stream and another ASN and transmit, promptly, Business Stream passes through 802.16e functional unit 7012 successively, the carrying of datapath function unit 7013 arrives Business Stream and is redirected unit 7011, if being redirected unit 7011, Business Stream finds that the destination of Business Streams is the MS under another ASN under the same CSN, the Business Stream that then work flow is dealt among the ASN of target MS correspondence is redirected the unit, and the Business Stream among the ASN of target MS correspondence is redirected the datapath function unit among the ASN that again Business Stream is passed through successively target MS correspondence in the unit, 802.16e the carrying of functional unit is forwarded to target MS.
Business Stream or other Business Streams for intercommunication between the MS under the different CSN, can be redirected unit 7011 through Business Stream shown in Figure 7 forwards, promptly, Business Stream passes through 802.16e functional unit 7012 successively, the carrying of datapath function unit 7013 arrives Business Stream and is redirected unit 7011, if being redirected unit 7011, Business Stream finds that the destination of Business Stream is the MS under another CSN or other network nodes, Business Stream is redirected unit 7011 work flow is dealt into external agent unit 7014, external agent unit 7014 is dealt into the CSN of ASN701 correspondence shown in Figure 7 with work flow, and the CSN of ASN701 correspondence sends out work flow.
When the Business Stream arrival Business Stream that MS sends is redirected unit 7011, Business Stream is redirected the target ip address that unit 7011 needs to resolve Business Streams, the destination of promptly judging Business Stream whether be MS, target MS whether with the MS that sends Business Stream under same CSN and/or same ASN inferior.If target ip address is the HoA of the MS of ASN701, then Business Stream is redirected unit 7011 work flow is dealt into target MS; If target ip address is the HoA of the MS of another ASN correspondence, then the Business Stream that is redirected among the ASN that unit 7011 is dealt into work flow target MS correspondence of Business Stream is redirected the unit, and the Business Stream among the ASN of target MS correspondence is redirected the unit and work flow is dealt into target MS again; If target ip address is the HoA of the MS under the different CSN, then Business Stream is redirected the CSN that unit 7011 is dealt into work flow the ASN701 correspondence, the CSN of ASN701 correspondence sends to the CSN of target MS correspondence with Business Stream, and the CSN of target MS correspondence is dealt into work flow target MS again.
Business Stream is redirected the mode of resolving target ip address in unit 7011 to be had a lot.
For example, Business Stream is redirected unit 7011 and is provided with one and transmits, the mapping relations between the sign of the traffic stream identifier that storage has been set up in transmitting, ASN that the HoA of target MS is corresponding with target MS, and mapping relations can be following form:
(SFID，D-HoA)＝＞(ASN?ID，R4Tunnel)，
Wherein, SFID represents traffic stream identifier, and D-HoA represents the HoA of target MS, and ASN ID represents the sign of the ASN of target MS correspondence, and R4 Tunnel represents to be used between the ASN transmit the tunnel of the Business Stream of intercommunication between the MS.
After the redirected unit 7011 of Business Stream receives the Business Stream of process 802.16e functional unit 7012, datapath function unit 7013, at first whether inquiry exists the sign of the Business Stream of reception, the target ip address of Business Stream and the mapping relations between the ASN in transmitting, if exist, the destination that Business Stream is described is MS.
If the ASN ID in the mapping relations is the ID of ASN701, Business Stream is redirected unit 7011 issues target MS with work flow, and in this case, the value of R4 Tunnel is an arbitrary value, does not have practical significance.If the ASN ID in the mapping relations is the ASN ID different with the ID of ASN701, Business Stream is redirected the Business Stream of work flow being issued among the ASN of target MS correspondence unit 7011 and is redirected the unit, Business Stream among the ASN of target MS correspondence is redirected the unit issues work flow target MS again, in this case, be used to transmit the tunnel of the Business Stream of intercommunication between the MS between the ASN that the value representation ASN701 of R4 Tunnel is corresponding with target MS.If the ASN ID in the mapping relations is and the ASN701 ASN ID under same CSN not, Business Stream is redirected the CSN that work flow is issued the ASN701 correspondence in unit 7011, the CSN of ASN701 correspondence issues work flow the CSN of target MS correspondence again, the CSN of target MS correspondence is redirected the unit with Business Stream by the Business Stream among the ASN of target MS correspondence again work flow is issued target MS, in this case, ASN ID and R4Tunnel value default route.
If transmit the sign of the Business Stream that does not have reception, the target ip address of Business Stream and the mapping relations between the ASN, Business Stream is redirected unit 7011 can take following three kinds of modes to obtain about the destination information of Business Stream and/or the ASN information of destination correspondence:
1. Business Stream is redirected unit 7011 to the destination information of the CSN of ASN701 correspondence inquiry about Business Stream, the CSN of ASN701 correspondence returns to Business Stream with Query Result and is redirected unit 7011, if the destination is MS, the CSN of ASN701 correspondence can return the ASN information of target MS correspondence, for example ASN ID etc.;
2.ASN701 can receive the MS information that other ASN come synchronously, the destination information about Business Stream can be inquired about in the redirected unit 7011 of Business Stream from these information, for example, certain ASN has inserted a MS, this ASN can arrive ASN701 with the information synchronization of MS, and ASN701 can collect a plurality of MS information in this way;
3.ASN701 all ASN under same CSN send query requests, the destination information of inquiry facility stream, and for example, which ASN ASN701 can be under and the information of target MS to the MS of the inquiry of the ASN under all CSN that coexists target ip address correspondence.
Business Stream is redirected unit 7011 after the ASN information that obtains target MS information and/or target MS correspondence, set up the mapping relations between the sign of the HoA of traffic stream identifier, the target MS ASN corresponding with target MS, Business Stream is redirected unit 7011 for the identical Business Stream of target ip address that follow-up identical MS sends, and can transmit with reference to these mapping relations.
If being redirected unit 7011, Business Stream learns that the destination of Business Stream is non-MS, then ASN ID and R4Tunnel value default route, and Business Stream is redirected unit 7011 work flow is dealt into the CSN of ASN701 correspondence, by CSN work flow is sent out.
Because the present invention improves Access Network, and Access Network can be applied in the wireless network, so, the present invention also provides the embodiment based on the wireless network of MIP, comprise terminal, Access Network and core net, described Access Network is used to transmit two Business Streams between the terminal, wherein, if two terminals coexist under the core net but corresponding different Access Network, and the corresponding source terminal of described Access Network, the Business Stream that then described Access Network sends source terminal directly is forwarded to the Access Network of target terminal correspondence; If two terminals coexist under the core net but corresponding different Access Network, and the corresponding target terminal of described Access Network, then described Access Network directly receives Business Stream from the Access Network of source terminal correspondence.
In the embodiment of above-mentioned wireless network, if simultaneously corresponding described two terminals of described Access Network, the work flow that then described Access Network can directly send source terminal is dealt into target terminal.
Be that example describes with the WiMAX network below.Fig. 8 is the networking schematic diagram of the WiMAX network architecture.As shown in Figure 8, the WiMAX network architecture comprises access service network (ASN) 801A, travelling carriage (MS) 802A, access service network (ASN) 801B, travelling carriage (MS) 802B and connectivity serving network (CSN) 803, interface between interface between access service network 801A and the travelling carriage 802A, access service network 801B and the travelling carriage 802B is respectively the R1 interface, and the interface between the interface between access service network 801A and the connectivity serving network 803, access service network 801B and the connectivity serving network 803 is respectively Interface R3.Need to prove, Fig. 8 is a networking schematic diagram of the WiMAX network architecture, in actual applications, the WiMAX network architecture can have a plurality of access service network, travelling carriage and connectivity serving network, a connectivity serving network can insert a plurality of access service network, and an access service network can insert a plurality of travelling carriages.
Access service network has realized that travelling carriage by the required complete function collection of wireless access WiMAX network, mainly comprises:
WiMAX Layer-2 (L2) connectivity with WiMAX SS/MS finishes with the WiMAX layer 2 of WiMAX terminal and is connected;
Transfer of AAA control messages to WiMAX subscriber ' s Home NetworkService Provider (H-NSP) for authentication, authorization and session accountingfor subscriber sessions, be the H-NSP of terminal use's transfer AAA control messages, to realize authentication to it to this user;
Network discovery and selection of an appropriate NSP that WiMAXsubscriber accesses WiMAX service (s) from, support the network of realizing terminal to find and selection function, in order to find and to select suitable NSP to come to provide suitable WiMAX business for this user;
Relay functionality for establishing Layer-3 (L3) connectiVity with a WiMAXSS/MS (i.e.IP address allocation) realizes layer 3 establishment of connection (for example IP address assignment) for the WiMAX terminal provides relay function to help it;
Radio Resource Management, the unlimited resources management;
ASN-CSN tunneling, the ASN-CSN tunnel;
Intra-ASN mobility, the mobile management between ASN;
Paging and Location Management, paging and location management;
Visited Location Register, the access location registration.
CSN has realized connecting professional required complete function collection for MS provides IP, comprising:
SS/MS IP address and endpoint parameter allocation for user sessions, WiMAX IP address of terminal and node parameter distribute;
Internet access, Internet inserts;
AAA proxy or server, AAA agency or server;
Policy and Admission Control based on user subscription profiles is based on the policy control and the access control of user's registration information;
ASN-CSN tunneling support, tunnel support between ASN and CSN;
WiMAX subscriber billing and inter-operator settlement settles accounts between WiMAX user's charging and operator;
Inter-CSN tunneling for roaming, tunnel between the CSN that is used to roam;
Inter-ASN mobility (WiMAX services (e.g., Location Based Services, Peer-to-Peer Services, Multimedia Broadcast/Multicast Services, IP-multimediaSubsystem Services, and Law Enforcement Services, among others), (the WiMAX business (for example for mobility between ASN, location-based business, teleservice, MBMS, IP Multimedia System business, and law related service)).
In Fig. 8, access service network 801A comprises that Business Stream is redirected unit (Packet Redirector) 8011A, 802.16e functional unit (802.16e Function) 8012A, datapath function unit (DPFn) 8013A, external agent unit (FA) 8014A, authentication ' unit (Authenticator) 8015A and MIP client (MIP Client) 8016A, 802.16e functional unit 8012A provides the function of 802.16e agreement defined, datapath function unit 8013A provides the R6 interface data channel function between base station BS and the access service network gateway ASN GW, the external agent unit 8014A provide foreign agent functionality, authentication ' unit 8015A provides authentication function, wherein, 802.16e functional unit 8012A is arranged between datapath function unit 8013A and the authentication ' unit 8015A, MIP client 8016A is connected with external agent unit 8014A.Business Stream is redirected unit 8011A and is arranged between datapath function unit 8013A and the external agent unit 8014A, is used to transmit the Business Stream between the travelling carriage under the same connectivity serving network.Business Stream is redirected unit 8011A and comprises: the target ip address parsing module is used to resolve the target ip address of the Business Stream that travelling carriage 802A sends; The mapping relations administration module is used for the mapping relations of the sign of the HoA of sign, target MS of the managed traffic flow access service network corresponding with target MS.The structure of access service network 801B is identical with access service network 801A.
For at the Business Stream of intercommunication between the travelling carriage under the access service network 801A shown in Figure 8, can be redirected unit 8011A at the Packet Business Stream transmits, promptly, Business Stream passes through 802.16e functional unit 8012A successively, the carrying of datapath function unit 8013A arrives Business Stream and is redirected unit 8011A, if being redirected unit 8011A, Business Stream finds that the destination of Business Stream is the travelling carriage under the access service network 801A, then Business Stream is passed through successively datapath function unit 8013A, 802.16e the carrying of functional unit 8012A is forwarded to target MS.
Business Stream for intercommunication between travelling carriage 802A shown in Figure 8 and the travelling carriage 802B, can between access service network 801A and access service network 801B, transmit, specifically, can between redirected unit 8011A of Business Stream and the redirected unit 8011B of Business Stream, transmit.Sending Business Stream with travelling carriage 802A to travelling carriage 802B is example, Business Stream arrives the redirected unit 8011A of Business Stream through the carrying of 802.16e functional unit 8012A, datapath function unit 8013A successively, if being redirected unit 8011A, Business Stream finds that the destination of Business Stream is travelling carriage 802B, then work flow is dealt into Business Stream and is redirected unit 8011B, Business Stream is redirected unit 8011B and again Business Stream is forwarded to travelling carriage 802B through the carrying of datapath function unit 8013B, 802.16e functional unit 8012B successively.Travelling carriage 802B is identical with above-mentioned flow process principle to the flow process that travelling carriage 802A sends Business Stream.
For Business Stream or other Business Streams of intercommunication between the travelling carriage under the different connectivity serving networks, can be redirected unit forwards through Business Stream and go out.Sending Business Stream with the travelling carriage of travelling carriage 802A under another connectivity serving network is example, Business Stream passes through 802.16e functional unit 8012A successively, the carrying of datapath function unit 8013A arrives Business Stream and is redirected unit 8011A, if being redirected unit 8011A, Business Stream finds that the destination of Business Stream is the travelling carriage under another connectivity serving network, Business Stream is redirected unit 8011A work flow is dealt into external agent unit 8014A, external agent unit 8014A is dealt into connectivity serving network 803 with work flow, and connectivity serving network 803 sends out work flow.
When the Business Stream arrival Business Stream that travelling carriage sends is redirected the unit, Business Stream is redirected the target ip address that Business Stream need be resolved in the unit, the destination of promptly judging Business Stream whether be travelling carriage, target MS whether with the travelling carriage that sends Business Stream under same connectivity serving network and/or same access service network inferior.Sending Business Stream with travelling carriage 802A is example, if target ip address is the HoA of the travelling carriage of access service network 801A, then Business Stream is redirected unit 8011A work flow is dealt into target MS; If target ip address is the HoA of travelling carriage 802B, then Business Stream is redirected unit 8011A work flow is dealt into the redirected unit 8011B of Business Stream, and Business Stream is redirected unit 8011B and work flow is dealt into travelling carriage 802B again; If target ip address is the HoA of the travelling carriage under the different connectivity serving networks, then Business Stream is redirected unit 8011A work flow is dealt into connectivity serving network 803, connectivity serving network 803 sends to the connectivity serving network of target MS correspondence with Business Stream, and the connectivity serving network of target MS correspondence is dealt into target MS with work flow again.
The mode that Business Stream is redirected unit 8011A parsing target ip address has a lot.
For example, the redirected unit 8011A of Business Stream is provided with one and transmits, transmit the mapping relations between the sign of the HoA of traffic stream identifier that storage set up, the target MS access service network corresponding with target MS, mapping relations can be following form:
(SFID，D-HoA)＝＞(ASN?ID，R4Tunnel)，
Wherein, SFID represents traffic stream identifier, D-HoA represents the HoA of target MS, and ASN ID represents the sign of the access service network of target MS correspondence, and R4Tunnel represents to be used between the access service network transmit the tunnel of the Business Stream of intercommunication between the travelling carriage.
After the redirected unit 8011A of Business Stream receives the Business Stream of process 802.16e functional unit 8012A, datapath function unit 8013A, at first whether inquiry exists the sign of the Business Stream of reception, the target ip address of Business Stream and the mapping relations between the access service network in transmitting, if exist, the destination that Business Stream is described is a travelling carriage.
If the ASN ID in the mapping relations is the ID of access service network 801A, Business Stream is redirected unit 8011A issues target MS with work flow, and in this case, the value of R4Tunnel is an arbitrary value, does not have practical significance.If the ASN ID in the mapping relations is the ID of access service network 801B, Business Stream is redirected unit 8011A issues the redirected unit 8011B of Business Stream with work flow, Business Stream is redirected unit 8011B issues work flow travelling carriage 802B again, in this case, be used to transmit the tunnel of the Business Stream of intercommunication between the travelling carriage between the value representation access service network 801A of R4Tunnel and the access service network 802B.If the ASN ID in the mapping relations is and the access service network 801A ASN ID under same connectivity serving network not, Business Stream is redirected unit 8011A issues connectivity serving network 803 with work flow, connectivity serving network 803 is issued work flow the connectivity serving network of target MS correspondence again, the connectivity serving network of target MS correspondence is redirected the unit with Business Stream by the Business Stream in the access service network of target MS correspondence again issues target MS with work flow, in this case, ASN ID and R4Tunnel value default route.
If transmit the sign of the Business Stream that does not have reception, the target ip address of Business Stream and the mapping relations between the access service network, Business Stream is redirected unit 8011A can take following three kinds of modes to obtain about the destination information of Business Stream and/or the access service network information of destination correspondence:
1. Business Stream is redirected unit 8011A to the destination information of connectivity serving network 803 inquiries about Business Stream, connectivity serving network 803 returns to Business Stream with Query Result and is redirected unit 8011A, if the destination is a travelling carriage, connectivity serving network 803 can return the access service network information of target MS correspondence, for example ASN ID etc.;
2. access service network 801A can receive the mobile station information that other access service network are come synchronously, the redirected unit 8011A of Business Stream can inquire about the destination information about Business Stream from these information, for example, access service network 801B has inserted travelling carriage 802B, access service network 801B can arrive access service network 801A with the information synchronization of travelling carriage 802B, and access service network 801A can collect a plurality of mobile station informations in this way;
3. access service network 801A all access service network under same connectivity serving network send query requests, the destination information of inquiry facility stream, for example, which access service network access service network 801A can be under and the information of target MS to the travelling carriage of the inquiry of the access service network under all connectivity serving networks that coexists target ip address correspondence.
Business Stream is redirected unit 8011A after the access service network information that obtains target MS information and/or target MS correspondence, set up the mapping relations between the sign of the HoA of traffic stream identifier, the target MS access service network corresponding with target MS, Business Stream is redirected unit 8011A for the identical Business Stream of target ip address that follow-up identical travelling carriage sends, and can transmit with reference to these mapping relations.
If being redirected unit 8011A, Business Stream learns that the destination of Business Stream is non-moving, then ASNID and R4Tunnel value default route, Business Stream is redirected unit 8011A work flow is dealt into connectivity serving network 803, by connectivity serving network 803 work flow is sent out.
It is identical with the redirected unit 8011A of Business Stream with other processing procedures to the parsing of target ip address that Business Stream is redirected unit 8011B.
Though top most of embodiment describes method embodiment of the present invention, Access Network embodiment and wireless network embodiment with the WiMAX network architecture, but in actual applications, the embodiment of other wireless networks can be used to illustrate method embodiment of the present invention, Access Network embodiment and wireless network embodiment equally.Be that example describes below with the cdma network.
Shown in Figure 9 is the structural representation of cdma network.Concrete, Business Stream is redirected unit (Packet Redirector) and is positioned at before the FA in PDSN, for up direction, after Business Stream process CDMA propagation function unit (the CDMA Delivery Function) processing from MS, being delivered to the redirected unit of Business Stream handles, according to result, the Business Stream part after the processing is sent to HA through FA and handles, and a part is delivered to other corresponding PDSN by the tunnel between PDSN and handled; For down direction, the Business Stream from FA is carried out transparent transmission, certainly, also can carry out transparent transmission to Business Stream from other PDSN.Wherein, FA is used to realize the external agent's of standard MIP agreement defined function, and Business Stream is redirected the unit determines its routing direction by the destination address of judging uplink service stream, with the data forwarding between realization PDSN.
In an embodiment of the present invention because under the same core net and the Business Stream between the terminal of same Access Network correspondence transmit in that same Access Network is inner, need not the participation of core net, can further alleviate the load of core net like this.
In an embodiment of the present invention, because under the same core net and the Business Stream between the terminal of same Access Network correspondence in the inner directly forwarding of Access Network, Business Stream need not to transmit through core net again, so further reduced the intercommunication time delay between the terminal.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (17)

1. method based on intercommunication between the terminal in the wireless network of Mobile Internet Protocol MIP is characterized in that comprising:
The Business Stream that the Access Network reception sources terminal of source terminal correspondence is sent;
Under the core net but corresponding different Access Network, then the Access Network of source terminal correspondence directly is dealt into described Business Stream the Access Network of target terminal correspondence if the target terminal of described Business Stream and described source terminal coexist;
The Access Network of target terminal correspondence is dealt into target terminal with described Business Stream.
2. the method for intercommunication between the terminal as claimed in claim 1, it is characterized in that also comprising: under the core net and corresponding identical Access Network, then the Access Network of source terminal correspondence directly is dealt into target terminal with described Business Stream if the target terminal of described Business Stream and described source terminal coexist.
3. the method for intercommunication between the terminal as claimed in claim 1, it is characterized in that also comprising: if the target terminal of described Business Stream and described source terminal be not under same core net, then the Access Network of source terminal correspondence is dealt into described Business Stream the core net of source terminal correspondence, the core net of source terminal correspondence is dealt into described Business Stream the core net of target terminal correspondence, the core net of target terminal correspondence is dealt into the Access Network of target terminal correspondence with described Business Stream, and the Access Network of target terminal correspondence is dealt into target terminal with described Business Stream.
4. as the method for intercommunication between claim 1, the 2 or 3 described terminals, it is characterized in that, also comprise before sending after the Business Stream that the Access Network reception sources terminal of source terminal correspondence is sent and with described Business Stream: determine the Access Network of target terminal correspondence, perhaps determine the core net and the Access Network of target terminal correspondence.
5. the method for intercommunication between the terminal as claimed in claim 4 is characterized in that determining according to following a kind of mode at least the Access Network of target terminal correspondence:
Mapping relations between traffic stream identifier, the destination terminal addresses that inquiry is preserved the in advance Access Network corresponding with it are with the Access Network of definite target terminal correspondence;
To the Access Network of source terminal correspondence and/or the Access Network of core net query aim terminal correspondence;
The Access Network of all the Access Network query aim terminal correspondences under same core net.
6. the method for intercommunication between the terminal as claimed in claim 4 is characterized in that determining according to following a kind of mode at least the core net of target terminal correspondence:
Mapping relations between Access Network that traffic stream identifier, the destination terminal addresses that inquiry is preserved in advance is corresponding with it and the corresponding core net are to determine the core net of target terminal correspondence;
To the Access Network of source terminal correspondence and/or the core net of core net query aim terminal correspondence.
7. the method for intercommunication between the terminal as claimed in claim 1, it is characterized in that: described terminal is the terminal of the WiMAX network architecture, described Access Network is the access service network ASN of the WiMAX network architecture, and described core net is the connectivity serving network CSN of the WiMAX network architecture.
8. the method for intercommunication between the terminal as claimed in claim 7 is characterized in that: described terminal is a mobile station MS.
9. one kind based on the Access Network in the wireless network of MIP, it is characterized in that comprising:
Business Stream is redirected the unit, be used to transmit two Business Streams between the terminal, wherein, if two terminals coexist under the core net but corresponding different Access Network, and described Business Stream is redirected the corresponding source terminal in unit, and then described Business Stream is redirected the Business Stream that source terminal is sent the unit and directly is forwarded to the redirected unit of target terminal corresponding service stream; If two terminals coexist under the core net but corresponding different Access Network, and described Business Stream is redirected the corresponding target terminal in unit, and then described Business Stream is redirected the unit and directly is redirected the unit from source terminal corresponding service stream and receives Business Stream.
10. Access Network as claimed in claim 9, it is characterized in that: if described Business Stream is redirected simultaneously corresponding described two terminals in unit, then described Business Stream is redirected the unit after receiving the Business Stream that source terminal sends, and directly described work flow is dealt into target terminal.
11. the ASN of a WiMAX network architecture comprises R6 interface data channel function unit and external agent FA unit, it is characterized in that also comprising:
Business Stream is redirected the unit, be arranged between R6 interface data channel function unit and the FA unit, be used to transmit two Business Streams between the MS, wherein, following but the corresponding different ASN of a CSN if two MS coexist, and described Business Stream is redirected the corresponding source MS in unit, and then described Business Stream is redirected the Business Stream that source MS is sent the unit and directly is forwarded to the redirected unit of target MS corresponding service stream; If two MS coexist a CSN down but corresponding different ASN, and described Business Stream is redirected the corresponding target MS in unit, then described Business Stream is redirected the unit and directly is redirected the unit from source MS corresponding service stream and receives Business Stream.
12. the ASN of the WiMAX network architecture as claimed in claim 11, it is characterized in that: if described Business Stream is redirected simultaneously corresponding described two MS in unit, then described Business Stream is redirected the unit behind the Business Stream that the source MS of receiving sends, directly described work flow is dealt into R6 interface data channel function unit, by R6 interface data channel function unit described work flow is dealt into target MS again.
13. wireless network based on MIP, comprise terminal, Access Network and core net, it is characterized in that: described Access Network is used to transmit two Business Streams between the terminal, wherein, if two terminals coexist under the core net but corresponding different Access Network, and the corresponding source terminal of described Access Network, the Business Stream that then described Access Network sends source terminal directly is forwarded to the Access Network of target terminal correspondence; If two terminals coexist under the core net but corresponding different Access Network, and the corresponding target terminal of described Access Network, then described Access Network directly receives Business Stream from the Access Network of source terminal correspondence.
14. wireless network as claimed in claim 13 is characterized in that: if simultaneously corresponding described two terminals of described Access Network, the work flow that then described Access Network directly sends source terminal is dealt into target terminal.
15. WiMAX network architecture, comprise MS, ASN and CSN, it is characterized in that: described ASN is used to transmit two Business Streams between the MS, wherein, following but the corresponding different ASN of a CSN if two MS coexist, and the corresponding source MS of described ASN, the Business Stream that then described ASN sends source MS directly is forwarded to the ASN of target MS correspondence; Following but the corresponding different ASN of a CSN if two MS coexist, and the corresponding target MS of described ASN, then described ASN directly receives Business Stream from the ASN of source MS correspondence.
16. the WiMAX network architecture as claimed in claim 15 is characterized in that: if described ASN is simultaneously corresponding described two MS, the work flow that then described ASN directly sends source MS is dealt into target MS.
17. the WiMAX network architecture as claimed in claim 15 is characterized in that: be provided with the R4 tunnel between the ASN, described R4 Tunnel Identifier is the type of Business Stream between the carrying MS.
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WO2019214384A1 (en) * 2018-05-11 2019-11-14 华为技术有限公司 Communication method and device
CN109286954A (en) * 2018-11-05 2019-01-29 中国联合网络通信集团有限公司 A kind of data transmission method and transmission net controller
CN109286954B (en) * 2018-11-05 2022-08-26 中国联合网络通信集团有限公司 Data transmission method and transmission network controller

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