CN101379841A - System and method for providing packet connectivity between heterogeneous networks - Google Patents

Abstract

The present invention provides a system which comprises a first logic door (935) which is combined to a first IP network (910-1) at least, and a second logic door (925) which is combined to a second IP network (910-3). A source terminal (905) is combined to the first IP network (910-1) and communicates with the first logic door (935), and furthermore a terminal is combined with the second IP network and communicates with a second logic door. The first door and the second door transfer data package between the source terminal and the terminal, and the first door and the second door further exchange state information for the source terminal and the terminal for sustaining the common connectivity between the source terminal and the terminal.

Description

For the system and method for parcel between the heterogeneous network connective and component and parcel is provided

[0002] the data network service that is linked as the terminal that flows is closed in the present invention.The xenogenesis that the invention provides the terminal connection of flowing feeds the data connectivity based on parcel of the different type between the network.

The background of invention

[0003] current, the data, services that the mobile phone carrier provides mainly is limited to the client-server example, whether the client is the terminal (MT) that flows, and server lives at a certain Internet protocol (IP) network at one or more fixed knot, the inside or outside network to carrier.Yet, flow and serve real time data of the same generation is mobile with of the same generation flowing, for example: picture telephone, video conference and VoIP are disposed gradually now by the mobile phone carrier.These flow streaming session are the current use meeting initiation of their setting, dismounting and other signal effects agreement (SIP) standard base facility mostly.The demonstration that SIP can be used for extensively changing extensively connects xenogenesis MTs, and handling with network capabilities together is communicating by letter of flowing out, and for example makes video recording and sound.Yet, SIP only deal with signal be mapped in a global SIP name and＜the IP address, between the interface〉to enabling to finish owner for any sipping.Be that SIP provides basically and is mapped in when requiring.Therefore, SIP does not deal with real data and is transmitted between the terminal owner.When these finish owner is the terminal that flows, mobile phone for example, different potentially ISPs' network and be positioned at universal time Anywhere, the current high efficiency answer of not setting phone or meeting may have the place of private IP address from a MT to other MTs, be to flow and often disconnect from their supplier's network because the RF link interruption.And SIP phone is not guaranteed running, if phone routes is crossed the translation private IP address becomes one of the public with interface network address translation (NAT) router.Correspondingly, having need be for a kind of new answer that may solve the SIP shortcoming.

[0004] SIP is that many application are further unsuitable, use ejection (bursty) data conferencing between MTs particularly those.Tong Xin example comprises like this:

The interactive network gaming that distributes has been used by the phone, PDAs or the like of wide variety of user at them,

Flow network server on MTs,

Download from the file server file that is positioned at MT,

Containment (SSH) is liked in interactive shell meeting,

Short-term and bursty summon immediately and

Push service, for example push view is made video recording and image transmission and off-line citation.

[0005] and, move to another as a mobile terminal from a network in order to safeguard connection, the only tradition of following the Internet engineering science task force (IETF) standard flows IP (MIP) technology by widespread deployment.Yet the MIP technical finesse only limits to the macro-instruction flowability, promptly.The flow rare motion of terminal of slowing down is being adjoined among the network.The micromotion more fast that they can not successfully handle a MT is adjoining between network or the base.Because the plan of receiving and sending between MIP is passed through home network and is seriously belittled call set-up time and meeting QoS they particularly belittle telephony quality for the mobility of visiting external network.

[0006] the SIP flowability of internet multimedia subsystem (IMS) standard is extended to cooperating xenogenesis wireless network receives and sends the similar and MIP of problem between having, and causes permanent call set-up time.For this reason, have and to overcome above-mentioned shortcoming for a system and method for the parcel connectedness between the end xenogenesis feeding network that the terminal connection of flowing is provided.

The summary of invention

[0007] therefore, provide the object of the present invention of system and method to be the parcel connectedness between the end xenogenesis feeding network that the terminal connection of flowing is provided, may handle frequent micromotion, without the firm degeneration of telephony quality be guaranteed to operate across the NAT router.

[0008] another examples Example of the present invention in order to reach above-mentioned object, provides system to comprise: first logic door combines first feeding network at least; Second logic door is combined to feed network at least the second, first and next logic door pass on the 3rd network; With the combination of communicating by letter of first logic door first is fed network and source end; And with the combination of communicating by letter of second logic door feed network and terminal to second, first and second door transferring datas wrap between source end and the terminal, and, first and second doors further be for source end and terminal switch state information in order to safeguard the general connectedness between source end and the terminal.

[0009] another first-selected examples Example of the present invention, the there provides method to comprise: register a source end and combine first feeding network at least with first logic door; Register a terminal and combine at least the second with second logic door and feed network, say first and next logic door pass on the 3rd network; The packet that shifts uses aforementioned first and second doors between source end and terminal, respectively; Exchange state information, between first and second doors, relevant with state information for source end and terminal in order to safeguard the general connectedness between source end and the terminal.

[0010] with further more another first-selected example according to the invention, the there provides parcel of processing to comprise MTM (flowing to flowing) head and IP head, network node comprises: first module adaptive is handled the MTM head of parcel, and the MTM head comprises at least one source MTID (terminal iidentification flows) field and MTID field, destination; Second module adaptive handled the IP head of parcel; And socket adapts to and another network node contact parcel.

[0011] with quiet another first-selected example according to the invention, the there provides a communication means based on parcel to comprise: build parcel; Introduce the MTM head and give parcel, the MTM head is specified a final destination of parcel; Introduce the IP head and give parcel, the IP head specifies the parcel that will be paid to door; And shift parcel to door.

[0012] another examples Example of the present invention provides a communication means based on parcel to comprise: receive parcel, parcel comprises the final destination information of parcel; The information that solves the final destination is to one or more IP address; And shift one or more network node that parcel is determined to one or more IP address.

[0013] another examples Example of the present invention provides method to comprise: acknowledge(ment) signal is from first door, the signal indicating terminal lose be connected to first door; In the reaction to the receipt of signal, the buffering parcel is doomed to terminal at second door; Find second door that be registered to of terminal; With investigation to the second door of the registration of responding terminal, pass on the parcel of buffering to give terminal from second door.

[0014] method can carried out along the executable indication of the computer of depositing at a computer-readable (computer-readable) media according to the example with first-selection of the present invention.

[0015] another examples Example of the present invention provides protocol layer architecture to comprise: relate to the MTM protocol layer of the MTM head of parcel, the MTM head comprises the MTID field, a destination of a final destination of specifying parcel; And network layer is positioned in the MTM number of plies and relates under the IP head of parcel, and the IP head comprises the field, IP address, a destination of the next network node that the appointment parcel will be paid.

[0016] another examples Example of the present invention, the there provides MTM agreement parcel to comprise: the MTM head comprises that at least one universal unique identifier is a network node, universal unique identifier does not keep with changing, has both made when network node moves to another from the feeding network and has fed network; And the IP head comprises field, IP address, destination, is worth in field, IP address, destination to change, when parcel moves during along the route road.

[0017] MTM agreement parcel another examples Example of the present invention is perhaps by the computer data signal representative that realizes at carrier wave.

[0018] Fa Ming other aspects, characteristics and technology will be significantly skilled in the following detailed description of relevant art owing to invention to one.

The brief description of picture

[0019] above-mentioned and other objects and characteristics and the present invention meet with become obviously from agree with to the following description of example of first-selection and the figure that follows:

Fig. 1 describes an example of the system diagram of communication system, and perhaps one or more aspect of invention is implemented;

Perhaps, Fig. 2 is included in from the head of the packet of a mobile terminal transmission according to one or more case description;

Fig. 3 A and 3B according to the example of the relative position of one or more case description MTM head at the IP parcel;

How a mobile terminal is perhaps to a mobile door registration according to one or more case description method for Fig. 4;

How perhaps a mobile terminal is another mobile terminal address according to one or more its local gateway of example inquiry to Fig. 5 describing method;

Fig. 6 describe an example how local gateway perhaps receive from flow IP parcel that terminal dispatches and write instructions and transfer it of a local source to the external IP network;

Fig. 7 describes an example, and how perhaps a local gateway is received the IP parcel and is write instructions and transfer its destination mobility terminal to a local registration from the external IP network;

Fig. 8 describes the event time arrangement at signal and data transfer phase, with an examples Example of invention;

Another example of Fig. 9 descriptive system.The soft hard hands off ability in internet be fix 1;

Figure 10 describes how system of an example, is configured in according to the example with invention, and the internet hands off of perhaps handling a mobile terminal feeds network to another from one;

Figure 11 be an example during the internet hands off, how the agent is flowed, and perhaps to use the buffering parcel be a mobile terminal to terminal;

How the internet connection is perhaps maintained for Figure 12 displaying one example, although an address-port changes;

Figure 13 describes an example and connects id (ICI) plan for implementing invariant, the principle that meets with invention;

Figure 14 illustrates an example of the enforcement of guard station, many bases package shipment (MBPF) operation in the downlink direction; And

Show that one flows network (MOSTNET) overlaid that covering flows out in the Internet for Figure 15, the principle that meets with invention.

Detailed description of the present invention

[0020] after, the example of first-selection of the present invention will be described the picture about following.In following description, many details have been pointed out as to be provided detailed understanding of the present invention.It will be significantly, yet to a masterful technique, perhaps the present invention is put into practice, need not some or all of these details.At other examples, well-known processing step or element are not described in detail as for the present invention that do not obmub redundantly.

[0021] revealed MTM (flowing) parcel converting system and the method that the general connectedness between the terminal that flows is provided to flowing.By generality, it means that parcel is transferred and is maintained between the MTs, has both made when they flow, at random separate on the geography, with different suppliers' network, ' hiding ' hindered by radio link interruption domination and/or person by the limited power of battery a private network the inside.

[0022] be different from meeting by original agreement (SIP), an aspect of invention provides answer to signal and data transport.And, it is high efficiency SIP and most suitable that the signal plan is set than that for fast connection according to invention, and high efficiency bursty data are transmitted as the bursty communications applications of running between MTs, for example interactive network gaming, webpage and file transfer, unix shell meeting or the like.

[0023] computer programming, invention are following about perhaps by computer system or resemble the operation of electronic system.Operation refers to that sometimes computer is performed like this.Comprised operation by the grateful operation of representative symbolically by processor, like this as a CPU, the equally fine representative data bit of the signal of telecommunication be maintained in memory cell with data bit element, for example at Installed System Memory, resemble other processing signals.Memory cell, data bit element is maintained to be the special electronics that has corresponding to data bit element, magnetic, the physical location of optics or organic produce." network node, " " person of issuing an order " and " receiver " understood to be comprised and perhaps comprised processor by all electronic equipments, for example a CPU time limit.

[0024] when being implemented in software, perhaps the element of invention is the code segment of carrying out necessary task.Code segment can be stored or is transmitted in transmission medium or communication line by the computer data signal of realizing at carrier wave at the readable media of processor." perhaps the readable media ＂ of processor comprises and may store or all media of transinformation.The example of the media that processor is readable comprises an electronic circuit, semiconductor memory devices, ROM, a flash memory or other read-only storages, disk, CD-ROM, optical disc, hard disk, fiber medium, a radio frequency (RF) link or the like.Perhaps, computer data signal comprises may breed in transmission medium for example electric network channel, optical fiber, air, electromagnetic type all signals of RF link or the like.Perhaps, code segment is downloaded for example the Internet, in-house network or the like by computer network.

Definition

[0025] the general meaning in some time limit is suggested after clearly describing.Yet, can be applied for principle of the present invention as long as feel grateful the meaning perhaps to be expanded by the equivalent scope decision.

[0026] state information: the relevant feeding network that is connected to of the information of mentioning with the flowability of network node, for example the identifier of an invariant is for network node, the current IP address-port of network node, information is about the change of IP address-port, the identifier of an invariant is relevant with network node for connecting, or analog.

[0027] Adport of parcel: mention right＜IP address, port number 〉, IP address delivery IP head, and the number of plies 4 (TCP or the UDP) head of port number delivery parcel.

[0028] meeting tuple is in parcel the inside: mention right＜source adport, destination adport, agreement〉there originates that adport adport has delivered the source IP addresses and the port number field, source of parcel and similarly is destination adport.Agreement is specified (promptly here at the IP of parcel area of agreement.TCP or UDP).

[0029] the original meeting tuple of meeting: mention the meeting tuple in the parcel the inside that meeting is set up, promptly.By first parcel of two terminal switch, the utility cession of having set up them when them is between themselves.At an example, the meeting tuple of specific T CP meeting is the tuple of seeing at synchronous symbol, SYN-ACK and ACK parcel.Be the UDP meeting, perhaps the parcel that meeting is set up depends on special applications.For example, be the VoIP meeting, perhaps they be first agreement (RTSP) that flows out in real time or real-time transport protocol (RTP) parcel in each direction.And original meeting tuple uniqueness also defines a meeting.Promptly perhaps the inside parcel of the meeting tuple of meeting delivery changes during flowability, but the original meeting tuple of meeting is fixed.

[0030] the LIP address is MT: at some example of invention, every MT hypothesis has the IP address to be assigned to its network provider by it.This IP address is called as local IP (LIP) address of MT.When MT moves during across network or subnet, its LIP address may change.

[0031] MTM: even MTM is an acronym is to flow to flowing, and MT needs not be a mobile mobile phone.Time limit MT is all owners to the feeding network that may be connected to the network provider equally applicatory.For example, the phone of CDMA or GSM or multiple case for example except that a mobile phone, MT can be that a WiFi enables owner, perhaps all owners be connected to a porous supplier's network by the mobile phone configuration as modulator-demodulator, even stringing owner be connected to the network of ISP.In addition, the time limit ' MTM knot ' will be mentioned a MTM and enable MT or MTM and enable door and (also claim.MG)。

[0032] NAT: mention network address translation, carry out by border router that to translate privately owned source adport be that the adport that openly originates is to be that is available publicly at a private network edge in owner's the parcel the inside of outwards going.They translate open adport on the contrary and get back to its privately owned source adport an inbound parcel the inside.

[0033] the open session tuple of parcel: mention the meeting tuple in the parcel the inside of transmitting from MT, it crossed all NAT routers and it openly can and MTM door (PRMG) afterwards at its road.This be parcel can the observed MT of being communicated in the meeting tuple of upstream agent people MG and will be described.Mention the MG that is sitting in the upstream data path the upstream agent people.

MTM door (MGs)

[0034] referring now to Fig. 1.The 100 other MTs of system are positioned at different feeding network 130-1,130-2 and 140 110-1 and 110-2, and covering network MGs 120-1 is to 120-4.As be described, perhaps MGs 120-1 is positioned at any along the MT traffic route to 120-4.One example, perhaps MGs120-1 is positioned at one of them carrier of edge or supplier's (that is, feeding network core network 130-1 and 130-2 and external IP network 140) to 120-4.More specifically, perhaps MGs 120-1 is positioned at same subnet to 120-4 and resembles PSNs (parcel service knot) 150-1 to 150-3 border router for example CDMA2000, ACR WiBro, the points of proximity (AccessPoint) router WiFi, PDSN or the like.At some example, it is same feeding network 130 that many MGs can be arranged.

[0035] situation greater or less than two MTs is arranged more, and perhaps MTs 110-1 and 110-2 comprises and can transmit and accept parcel data equipment for example mobile phone, PDA (Personal Digital Assistant), portable computer, desktop computer and embeddeding computer.MTs 110-1 and 110-2 perhaps be with wireless supplier's communicate by letter 130-1 and 130-2 by the linking of wireless or stringing, and perhaps flow or fixed.Every MT110 perhaps have Internet protocol (IP) address be assigned to it by it communication network or it for example perhaps be been programmed into MT., perhaps, the MT that is a mobile phone has the IP address to be assigned to it by feeding one of network 130, and wireless supplier is the place of the data network of a porous.This IP address will be perhaps by local IP (LIP) address and following will being described in more detail of name MT110.Protocol stack comprises software at MTs110-1 and 110-2 (and do not show) inserts MTs 110-1 and 110-2 to comprise " perhaps mobility to using the 120-1 that implements registration, name conversion and package shipment service to represent the mobility of MTs110-1 and 110-2 to 120-4 by MGs " parcel (MTM).This software open systems interconnection model perhaps by name " the MTM number of plies " and perhaps by conceptization as or skim between transport layer, (also claim.The 4th, or TCP, UDP layer) and network layer (also claim.The 3rd, or the IP layer) or as a network layer of revising.View piles up MGs 120-1 will have the compatible number of plies can read MTM head and enforcement registration, name conversion and the defeated service of contracted affreightment to 120-4 at parcel.Perhaps, the compatible number of plies is also named " the MTM number of plies " at MGs 120-1 to 120-4.

[0036] Fig. 1, the exemplary Class1 30-1 and the 130-2 that feed network comprise 2000 1x of the many accesses of code branch (CDMA2000 1x) network, code is distinguished only 2000 1x differentiation data (CDMA20001xEVDO) networks of many accesses, general parcel broadcast receiver service (GPRS) network, telecommunication system (UMTS) network generally flows, general earth radio feeds network (UTRAN) network, and improved data are that GSM develops (edge) network, WiFi network, WiMax network and WiBro network.The network of stringing applicatory comprises Dial-up Network and regional network (LANs) for example Ethernet and token-ring network.The above-mentioned list of network applicatory is only exemplary, and should feel grateful and perhaps be connected to another network by the purposes to one or more network layer protocol, for example any network of perhaps using of IP.

[0037] perhaps external IP network 140 comprises an only network or a plurality of by interconnected network.Perhaps form external IP network 140 and comprise the Internet, LANs, the example of network of network (WANs) on a large scale, Digital Subscriber Line network and wired network.Perhaps, they are the networks of the packet switching network or contactor.Perhaps form the above-mentioned list of external IP network 140 networks only exemplary and it should appreciate and perhaps be connected to another network by the purposes to network layer protocol, any network (IP) that perhaps uses as Internet protocol like this.

[0038] put it briefly, every MT is perhaps to the MG that suitably chooses registration, after the MG that chooses refer to that local MG is that specific MT. one example, low number of plies connection be established with particular network after, promptly.By PPP at the cdma2000 network.When it perhaps typically during practical situation local MG be positioned at the edge of the feeding network of MT.Should further feel grateful has MT perhaps to find many methods of its local MG, comprises:

Supplier's PSN is upgraded the address of returning suitable this machine MG and arrives MT. in addition, and on behalf of MT, PSN can do the MT registration;

Local MG have a socket with the IP address in the address of fixing known vertical distance from PSN.If the socket of MG resembles PDSN at same subnet, this is to implement especially easily; And

MGs has the IP address that is resolved to use the DNS domain name of DNS inquiry, after MGs selected be MT. as local MG

PRIP address and PR become MT

[0039] IP (PRIP) address that openly can reach is that the IP parcel may be set under the PRIP geologic condition at those parcels in destination address domain from the IP address that all source knots arrive in the Internet.

[0040] at some example, perhaps a selected PRIP address is arranged is that the MTM knot that every MT. has this address refers to that perhaps PR becomes that MT.PR knot is MT or its local MG.The following PRIP of being is MT with the different example of the selection of PR knot:

The LIP address of MT be the public (promptly.At the CDMA2000 network) and select PRIP address as it.Thereby MT is that it has PR knot,

The LIP address of MT is disclosed, but the selected PR knot as it of some MG.This is suitable, if the LIP address of MT dynamically change (with at CDMA2000 after being connected again), not using it, because under PRIP address and the situation

Under the selected PR knot situation as it of some MG, the LIP address of the necessary MT that becomes is privately owned.

MTM wraps header

[0041] at some example, the operation of MTM is carried out any on the number of plies 2 (PPP, Ethernet or the like) and under the number of plies 4 (UDP, TCP or the like).

[0042] overlaps all MTM information and delivered a logical MTM head of taking as of parcel for it.The parcel of delivery MTM head is known the parcel as MTM.The MTM head can be distributed on various points at parcel in a word, in the number of plies 2 frameworks the inside.Each segment of information claims MTM header field at the MTM head.Perhaps, these fields of various kinds are used for signaling mutually being performed according to the relevant state information of what their flowability of MTM task coordinate by MT and MG.Perhaps, the MTM parcel comprises the utility cession data or perhaps is that the pure pure signal parcel of creating of MTM heap is expressed the MTM signal at knot.At the MTM parcel, perhaps a subclass in possible MTM field is to exist rather than all possible MTM field.An important MTM header field type is that MT proves (MTID).The source of source MTID and MTID field, destination unique identification parcel and destination owner are among all possible the Internet owner.A TCP/IP session between two MTs, source or destination MTID do not need to deliver each only parcel, but with certain law.MTID perhaps constitute especially state information as element or, be the Internet owner as the identifier of an invariant.

[0043] perhaps the MTM head is implemented as the IP selection, will preserve the order of normal TCP IP heap, thereby makes it be more prone to merge in the enforcement of existing TCP/IP heap.At an example, this makes by definition MTM head becomes possibility, when new IP selects to key in.This example is benefited from and is not broken, and writes instructions and transfer the IP parcel when router when the MTM traffic route does as usual, and need not to cast them, even the new selection type of MTM is the IP head that has them.

[0044] another example is 3.5 of the numbers of plies of separating for implementing the MTM head.One example, perhaps this use a new agreement numeral to be implemented to show that MTM is transfused in the protocol type field of IP head.The MTM head comprises the upper strata (for example UDP, TCP or the like) of protocol type conversely.One example, IP are dug a hole at IP and are perhaps used.

[0045]。Fig. 2 be presented in the MT perhaps by agreement sudden cause and be inserted into into an example of parcel model " MTM head " 200 be doomed (promptly to another equipment.Another MT or MG).The field comprises header length 205 200, the field 210 that is removed, and head is checked and 215, MTID source 220, MTID destination 225, address style bit 230 connects bit 235, and connection ID 240 is signaled or data (S/D) encode 245 and protocol type 250.Should feel grateful according to instantiation, perhaps one or more field is removed and/or perhaps the person changes order of the field 200 200.And the size in each field is expressed with byte or position, perhaps change, and perhaps other field increases.

[0046] perhaps on the throne the or byte in header length field 205 specifies the length of MTM 200.Perhaps, it is used for separating 200 from all the other of data by MG or MT.Perhaps, the field that has been removed is specified 200 in the field, field 210 that is removed.Head is checked and perhaps field 215 is used to check positive straight peen 200.Perhaps, this is similar to check the honest of IP head in the method in the use of IP.

[0047] MTID field, source 220 perhaps identification comprise a source MT who causes parcel of 200.Perhaps, the destination MT that comprises a parcel of 200 is recognized in MTID field, destination 225.At some example, source MT MTID is the identical PRIP that resembles source MT, MTID field, source 420 perhaps be set up to perhaps be concrete " MTID of reserve " that is worth (promptly.Zero).When MT or MG received a parcel, MTID adjusted to zero, and perhaps it determine that source MTID equates with the PRIP that originates.

[0048] perhaps address style bit 230 recognizes a source MT of 200 is created in what speech has used.Perhaps, it is specified, that is, and and IP speech or MTID speech.The parcel that the IP speech delivery signal comprises head to the MG that accepts head will be write instructions and transfer IP field, destination listed at the IP of parcel head.The MTID speech delivery signal is the unknown MT that originates that arrives to the PRIP of MG destination MT, and MG needs application target ground MTID to determine the PRIP address of destination MT.

[0049] connection bit 235 can use and show whether the MTM parcel will be combined into suitable explanation with following parcel.Perhaps, the transport layer meeting that causes the data that comprise at parcel is recognized in connection ID field 240.It, giving MG when the data of passing on from MT must be cross-section during NAT PSN, perhaps uses.

[0050] signalling/data (S/D) code is dispatched 245 and is perhaps recognized the kind that MT or MG is comprised message at parcel.For example, perhaps numeral signals in S/D code field 245, and it comprises MRq (MTM register requirement), NRq (name conversion request), perhaps data to the MG that receives parcel.Perhaps, protocol type field 250 is recognized in the transport-layer protocols that causes the data that intervention comprises at parcel (promptly.TCP，UDP)。

[0051] the IP parcel 300 that causes at origin source MT. perhaps of two examples of the relative position of figure .3A and 3B explanation MTM 200 is at figure .3A, and MTM 200 exists between IP 310 and the transport layer head 315.At figure .3B, MTM 200 is located at option field 325 the inside IP 310.Should feel grateful IP parcel 300 similar and examples.Figure .305

3B is similar and instance graph .3A. than the perhaps cross-section more easily existing router of IP parcel 300

[0052] if MTM 200 is inserted into into option field 325 at IP 310, should feel grateful it to estimate so that be fit to option field 325.The size of option field is 40 bytes normally, however 1 byte use for selecting the type field, and 1 byte 38 bytes are available in order to select the length field so only to use.At addition, if use other selections (promptly.Timestamp) space can be utilized as MTM 200 and perhaps further is limited.Perhaps, one example if MTM 200 settles in option field 325, is prevented from the purposes of other selections.

[0053] though its do not show, should feel grateful perhaps to be provided with and select the type field to show that option field comprises MTM 200.Three flags are arranged in the field of selecting the type identification to select.First is to copy flag and show whether selection will be replicated perhaps causing the head of any IP fragment in the field.One example, perhaps this position is set up, (MTM 200) is replicated all IP slice header so that the selection that will cause.Following two have defined selection class flag in the field.One example, these are adjusted to zero and show that selecting class is that network control is selected.Last five according to selecting the concrete selection of class identification.Should feel grateful some selection to register, and these numerals cannot be used to recognize the selection of MTM head.

[0054] select the length field to be used to specify the length of selection.It is measured in byte.So the size of what MTM head is that length is selecting the length field to be listed in byte.

The instantiation of MTID

[0055] perhaps MTID is for example SIP name, the guard station ID numeral (MSIDN) that flows of a global identifier, and network access identifier (NAI) is user@provider.com for example, a certain combination therefore, the perhaps every other identifier that can imagine.At an example, all MT that MTID plans the MTID of selected such some other MT of inquiry may obtain it one come and go doubly within the mark of (RTT).And MTID is that enough short or enough compressible introduce a little percentage ceiling perhaps be better at parcel.For instance, some example of suitable selection is that MTID is:

PRIP address: if the PRIP address is guaranteed it is that perhaps use as MTID the static length PRIP address using the session.If as to flowing IP, one family PR ties chosen MT., this is that MTID is actually Home_PRIP_Address::LIP_Address really in this case.This PR knot to keeping it that also is suitable for the MT remains is being used the place of the same MG registration in the meeting.With PRIP as MTID, the source MTID perhaps become with the source IP field the same at the MTM of parcel head at its IP head.In this case, MTID field, source perhaps adjust to be reserve MTID zero.If MTID field, source adds up to 0, all MTM knots of receiving this parcel are the source IP fields at the IP head MTID that will determine then to originate.Being similarly destination MTID is suitable for;

The static open LIP address of MT: if one of its LIP address is guaranteed to keep static length during MT participates in any conferencing over ip, that address can selected MTID as it;

＜socket IP address, socket interface〉combination: source MTID will be＜source IP addresses to come source interface〉socket is that terminal point (can see application) connects this parcel and belongs to.The similar destination MTID that is claimed as holds the source of replacing with " destination ".MTID is that legal providing opened connection at first and dynamically do not changed its speech interface terminal point like this, perhaps is that argument is the socket that most sockets are implemented;

Network access identifier (NAI): the carrier of porous is used for NAI unique identification user.It is feasible as MTID, if the login of user's remains from the supplier of MT to uniqueness of a uniqueness during using meeting or, if NAI is a global static identifier, promptly.user@home_provider.com；

The MSID::NAI combination: MSID is that unique ID is given MT here, promptly.ITU is standard I MSI or ENUM (ESN) E.212.This is that the improvement of the same user's of top processing NAI plan may be logined from other MTs and used the session;

DNS domain name: if MT claims mapping to be maintained fixed to dns name and using the session one to one that perhaps DNS uses as MTID.It will be form hostname@provider.com or hostname@some-registered-domain.com usually;

SIP name:, be desirable SIP name unique identification MT because the terminal point of SIP meeting and similarly is the SIP traffic; And

Ethernet machine address: the machine address can use as MTID provides ceiling to be tolerated, and it is provided can be to creep or encrypt to avoid exposing it with certain form and survey at packet.

Purposes in the time of to a plurality of type of MTIDs

[0056] when with a plurality of types of using MTIDs constantly, fully MTID perhaps specify as one to (type:: mtid).In this case, ' type ' recognizes this MTID, promptly.Ethernet mac speech=1, MSIDN/CDMA=2 or the like.Alternatively, ' type ' field can be to describe the ASCII string, promptly." Ethernet machine address " or " MSIDN/CDMA ", etc.

The MTM parcel operates in MG

[0057] when MG be that a PR is when becoming MT, and the parcel of being doomed for that MT will be transmitted in the MG outside, perhaps, MG be sure of better, it is further that the IP field, destination of the IP head of parcel is replaced to the LIP address of MT., when the parcel in that MT origin will be transmitted in the MG outside, perhaps, MG be sure of better that the source IP field of the IP head of parcel is replaced to the PRIP address of MT.

[0058] and, if MG receive be shoulder a certain piggyback pure MTM signal the application data parcel a MTM parcel (promptly, registration, the conversion of MTID name or the like), perhaps, MG extracts the parcel of being shouldered piggyback and goes into according to signal task or the data processed then parcel that separates of rule and will being described forward.At another example, perhaps parcel determines its suitable parcel of back again socket MG before forward.

Implement pure signal parcel

[0059] at a certain example, each type of pure MTM signal parcel at a concrete port or a TCP parcel perhaps be implemented as a UDP parcel at a physical interface.Under UDP parcel situation, this have use UDP to check and and the benefit of registration fast, connect to set without TCP and postpone.Under TCP parcel performance, perhaps TCP stays to reliable payment as being concerned about.Though connection is set and eavesdropped will be a RTT, this can be shouldered at both direction, and signal parcel mitigation piggyback accords with synchronously to TCP and the SYN-ACK parcel arrives/from MT.

Signal that Demuxing MTM is pure and packet

[0060], perhaps be to check whether it be whether a pure signal parcel or it comprise application data to the action first time of receiving parcel at all MTM knots (MT or MGs).Knot will correspondingly be earnestly hoped as signal and the data task of be described in the correspondence of lower part.

Signal: MT registration

[0061] when the MTM function is at first opened at MT, perhaps, when the LIP of MT address modification, perhaps, the PR of oneself knot and its PRIP address modification when MT is it, at first give to comprise in an example MT will and specify the tuple MTID of association, PRIP address, the IP parcel of MTM registration＜request (MRq) message of LIP address its local MG.Notice that perhaps the PRIP field is zero-bit at MRq, if MT is not its PR knot.

[0062] receiving the MRq parcel, perhaps local MG replys then with MTM registration answer (MRp) message and uses IP parcel MT. common, and MRp message is adapted in the unique IP parcel, though perhaps it stride across the IP parcel.At an example, MRp message comprises an error coding of the reason of the registration that shows success or registration failure.Receiving the IP parcel that comprises MRp, if MT perhaps from the IP head of parcel extract the source IP addresses of local MG then and deposit local finish it.

[0063] after sending MRq, perhaps MT uses time-out and relay plan to wait for MRp then.Suspend and the relay cycle number of times that is predetermined of perhaps heavily being covered is being abandoned and declared that ' can't obtain before the MTM ' is to user or application.

[0064] should further notice it, perhaps MGs can use a certain suitably high efficiency propagation protocol to distribute log-on message among them, is to exceed outside this scope of invention.At following name translate phase perhaps this propagate, and conversely, improves the quick response of inquiry trade agreement.

[0065] referring now to Fig. 4, description is that an example of a process 400 is registration one MT and its local MG.Perhaps, registration process 400 takes place, when the MTM module is started in MT, and when the LIP of MT address modification, perhaps, the PR of oneself knot and its PRIP address modification when MT is it.Should feel grateful above-mentioned list model, have only because registration process 400 when perhaps any the marquis take place MT need connect or connect again to local MG or, when MT changes local MGs.As shown in piece 405, process 400 beginnings are given default MTM door when MT passes on the MTM parcel that comprises MTM register requirement (MRq).Perhaps, default MTM door is the local MG that chooses.Should feel grateful S/D code field (promptly.S/D code field 245) MTM head (promptly.MTM 200) at parcel (promptly.The IP parcel 300 that comprises MRq can be set) show that parcel comprises MRq.Perhaps, MRq specifies MT, the MTID of the LIP address of MT, and the PRIP address of MT, though, at MT is not its PR knot place, perhaps, the PRIP field is a zero-bit at MRq, should feel grateful other data perhaps to comprise at MRq because the external IP address of local MG is the PRIP of MT., and perhaps MRq strides across and surpass a parcel.Should further feel grateful, if MTID cause by local MG or by another MG, MTID cannot specify at MRq then, causes that in information necessity perhaps MTID is propagated under the MRq situation.

[0066] at some example, before process 400 took place, MT can be to feeding network registration.Yet at other examples, perhaps process 400 takes place with the registration of MT simultaneously to feeding network.Perhaps, MT thinks to feeding network registration, in case it has been proved and has distributed LIP address (if may).For example, if MT is a CDMA2000 1x compatible equipment, perhaps it fed network registration (AN) to CDMA2000 1x then, when the PPP session has been set up at MT and PDSN between CDMA2000 1x and PDSN, distributed the LIP address to MT.

[0067] perhaps default MTM door is local MG or another equipment, for example PSN.Perhaps, at the default MTM door of some example is the PSN that comprises local MG.Perhaps, the MG if default MTM door is not in the right place disposes it and writes instructions and transfer MRq to local MG.At some example, perhaps perhaps the internal interface of local MG offseted by known number from the IP address of the interface of PSN at the interface of IP address that same subnet resembles the internal interface of PSN and MG.At these examples, perhaps MT send the IP address of the internal interface that MRq directly arrives local MG, need not to check door.

[0068] at piece 410, MRq writes instructions and transfer local MG from default gateway.Should understand it, if the IP address of the internal interface of local MG is known to the MT, and MRq is communicated to local MG from MT, and perhaps the 410th step was removed then.If, yet, local MG for known to the MT and/or MRq be not communicated to local MG, perhaps MRq writes instructions and transfer local MG from door.

[0069] in case local MG accepts MRq, perhaps it deposit association's tuple, that is, and and the LIP address of MT, the PRIP address of the MTID of MT and MT (if specify at MRq the PRIP address).Perhaps, local MG safeguards that the MTID table of the PRIP address, MTIDs and the LIP address that comprise MTs registers to it.At some example, perhaps this MTID table also comprises PRIP MTs address and the MTIDs to other MGs registrations.After leaving the data that MRq comprises in, local MG send a MTM registration reaction (MRp) to MT, as being shown at piece 415 then.Perhaps, MRp comprises the IP address of the internal interface of MG.If the MTID of MT be cause by local MG or another MG, no matter then perhaps the MRp MTID S/D code field that perhaps also comprises MT. shows that at MRp registration is successful at the MTM head.The IP address of the internal interface of MG perhaps comprise in the source IP field of the IP of MRp head or it at MRp perhaps in data.

[0070], before sending MRp, arrives MT. though it does not show that at example, MTID is caused that by local MG or another MG perhaps local MG or another MG cause MTID after accepting MRq

[0071] at piece 420, MT is from IP address that local MG accepts MRp and extraction and deposits the internal interface of local MG.Though be not presented at Fig. 4, should feel grateful, if S/D code field shows that at MRp registration is not successful at the MTM head, perhaps, if MT does not accept MRp, it can use and suspend and the relay plan then, and it is the number of times of scheduled justice or the period of a scheduled justice to local MG that MT send a plurality of register requirement.

[0072] one example, if the registration of MT is successful, process 400 can comprise that the MTID of piece 425MT and PRIP address propagate one or more other MGs in the place of MG covering network then, perhaps upgrades their MTID database then.Perhaps, several propagation protocols use, and for example border door agreement (BGP) is opened Shortest Path first (OSPF) agreement.Outside the scope of using, the operation of these agreements is left.

Signal: MTID resolution

[0073] in this stage, client's (inquiry) MT request covering MG network solves the PRIP address of some MT MTID to it.Each resolution is originated before data transmit the beginning of meeting, promptly usually by a kind of the application.Browser requirement solves the address of website.Just in case MTID is a dns name, perhaps it solved the common mode in PRIP address by the inquiry dns server.Attention is in case, and MTID is the PRIP address, this is not named the needs in resolution stage.

[0074] perhaps client MT request resolution is done by dispatching MTM name conversion request (NRq) signal message, therefore to local MG.NRq is sent as a pure signal parcel dividually or is perhaps shouldered other packets piggyback alternatively.At the local MG of the NRq parcel of dispatching from MT to it, perhaps a certain MTM header field is set up the NRq message that shows this special parcel delivery part.And perhaps source and destination MTIDs are that (target destination) MT that inquires separately and inquired.Equally, source and destination address domain are respectively the LIP address of MT of inquiry and the IP address that reaches of local MG at the IP head.

[0075] receiving that NRq message is at total interface first, perhaps MG checks then whether its local buffer or its MTID table may may answer the resolution inquiry.If no, perhaps MG transmits NRq message, and NR inquiry transaction request is to the MGs network.Definite NR inquiry trade agreement, the end TCP of Paoing is the scope outside current the discussion better.Therefore say that many high efficiency method for inquiring exist and can use consistently and invent.Note comprising the IP parcel of all or part of NRq message, be received in the outer interface of MG, the MTM of parcel and IP head also comprise MTID to the MT of PRIP mapping inquiry because source MTID and source IP field, respectively.This of mapping can be preserved by all MG that NRq message is visited in its outer interface.

[0076] at an example, it is that (NRp) message MTM parcel is replied in the name conversion that changes over to that the NRq inquiry is replied.Receive at MG that at NRp MTM parcel from the inquiry trade agreement, perhaps a certain MTM header field is set up the NRp message that shows this parcel delivery part, and perhaps source and destination MTIDs be that inquired and MT inquiry, respectively.

[0077] receiving the NRp parcel, MG perhaps check then destination MTID whether be that local registration MT. in that event, perhaps it be provided with IP field, destination then at the IP of parcel head and (for example find from tabling look-up) MT that inquires separately to the LIP address.Perhaps, MG writes instructions and transfer the MT. of NRp parcel to inquiry then

[0078] the PRIP address of the MT that inquired of the NRp content of replying is according to an example.At some example, it can deliver in the IP of NRp parcel payload or be efficient in the source IP field of the IP of NRp parcel head.In preceding case, will there be the internal interface address of set MG in that source IP field.

[0079] will be kept at wireless RTTs, NRq message may be shouldered following piggyback MTM packet, and normally the meeting of practical application is set request (promptly.Request is set in the HTTP/TCP meeting of browser, and request or the like is set in the RTSP/RTP meeting)

[0080] referring now to.5, how perhaps MT (inquiry MT) inquires that its local MG is another MT of PRIP address (MT that is inquired) to show an example, when the MT of inquiry has MTID, but not the PRIP address, the MT. that is inquired should feel grateful in some situation, and perhaps the PRIP address of the MT that is inquired is to solve another process of use.For example, use DNS to inquire to the PRIP address of the MT that is inquired, resemble at art and be known if perhaps the MT that is had a DNS domain name to inquire then by the MT that inquired solves the DNS domain name.

[0081] as shown in the piece 505,500 beginnings of name transfer process are communicated the local MG that gives it from the MT of inquiry when name conversion request (NRq).Should feel grateful and perhaps S/D code field is set shows that in NRq message it is a NRq message at the MTM head.In addition, perhaps, source and MTID field, destination are set up MTIDs to inquiring at the MTM head, and, perhaps be set to the IP address of the internal interface of the LIP address of MT of inquiry and local MG respectively at the IP of NRq head with source and IP field, destination, respectively by the MTs that inquired.

[0082] after NRq message is transmitted in piece 505, name transfer process 500 continues to stop 510 local MG and accepts NRq and definite place whether it may shine upon destination MTID to PRIP.As being talked about previously, perhaps local MG safeguards that the PRIP address MTID table that comprises MTIDs and MTs registers to it.MTIDs perhaps further deposited by the MTID table and register to other MGs MTs PRIP address.And perhaps local MG safeguards another memory cell, that is, a local buffer comprises the previous referred right of MTID and PRIP address.If the MTID database comprises MTID and by the PRIP address of the MT that inquired at local MG, then process 500 continues to stop place (NRp) that name conversion that 545 local MG cause the PRIP address that perhaps comprises the MT. that is inquired replys at some example, and perhaps the PRIP address of the MT that is inquired delivers the IP payload of NRp parcel or in the source IP field of the IP of NRp parcel head.Should feel grateful S/D code field perhaps to be set to the value that shows NRp message at the MTM head.

[0083] if, yet, local MG can not solve the PRIP address of the MTID of the MT that is inquired to it at piece 510, and then handling 500 kinds of incomes, to stop 515 local MG inquiry MG networks be the part that perhaps the local apply for information of the PRIP address of the MT. that inquired of quilt comprises all or NRq.

[0084] as shown in the piece 520, when the message of the MT of inquiry inquiry is bred in network, perhaps MTID and PRIP are stored receiving in the MTID table of apply for information MGs, even MGs does not comprise MTID and the PRIP of the MT. that is inquired

[0085] at piece 525, it is whether PRIP and the MTID of the MT that inquires of firm quilt is stored at the MG network.One example, perhaps this be determined to be done by receipt that perhaps to force a time limit the be a reaction local MG from the MG network.If the time limit is exceeded, perhaps then local MG supposes that MTID and the PRIP address of the MT that is inquired are not stored at the MG network, and perhaps process 500 continuation obstructions 530 local MG send the place of a name failure notification to the MT. of inquiry

[0086] if, yet, one MGs comprises MTID and the PRIP address of the MT that is inquired at the MG network, and then perhaps process 500 continues to stop 535 MG applicatory and create and comprise the MTID of the MT that is inquired and the local NRp of PRIP address, is communicated to local MG from MG applicatory then at piece 540.One example, perhaps the MTID of the MT that is inquired and PRIP address are stored resolving more fast into same name at local MG.

[0087] no matter whether NRp causes at local MG or at another MG at MG covering network that process 500 continues to stop 550NRp is communicated to the MT. of inquiry from local MG place

[0088] though its not demonstration, should feel grateful the PRIP of MTID and destination MT, no matter whether it has comprised in MT, solved or solved by the DNS inquiry, perhaps come source interface to link together with transport layer now and be assigned to the original process 500 of that quilt of using by process 500.Transfer of data is at MT

[0089] before transmitting parcel, the MTM header information perhaps be increased to a specific parcel by MT. at an example, source and destination MTIDs deliver each parcel of being sent.At another example, perhaps the address style field is shown by the MT increase uses for what speech.Perhaps, the type of speech comprises following:

The parcel of IP speech: the speech type bit is set to 0 at the MTM head.In this case, destination IP address the IP head be set to destination MT the PRIP address or

The parcel of MTID speech: the speech type bit is set to 1 at the MTM head.In this case, IP address, destination the IP head be set to one of local MG can and the IP address, but the MTID of parcel delivery destination.The local MG well afoot conversion destination MTID that perhaps takes steps then becomes PRIP address, destination and format as described below and writes instructions and transfer parcel.

[0090] at some example, the application data of all MTM parcels delivery wait for be sent to a destination MT with the PRIP address of the unknown perhaps formatted as by the MT.MTID speech perhaps it further shouldered piggyback current preparative parcel of MRq or NRq parcel be sent to same destination MT.

Data are transmitted in MG: forward and be sent in external IP and cover

Perhaps, [0091] one example, two Route Selection methods use at the MG according to the type of the speech of the MTM packet received.At first, if the speech type bit shows the IP speech at the MTM head, destination address is used for determining down according to normal IP transmission standard at the IP of the parcel of receiving head.On the other hand, if the speech type bit shows the MTID speech at the MTM head, perhaps MG at first searches table at the MTM head and solves the PRIP address of destination MTID to the destination in the field, IP address, destination that is written into parcel then.For relaxing the processing load that this searches and postpones to cause, search the result recently and can be stored in a kind of data structure of fast access.Perhaps, the PRIP address of seeing then is used to write instructions and transfer parcel to sending down and at normal IP.If, yet, entry is not that destination MTID is found in the PRIP address table, possible action by MG perhaps comprise deposit parcel 1) cast parcel or 2), and original name conversion (using DNS or NRq) transaction and MG network, after, in the sort of transaction with accept the destination of finishing of PRIP address for parcel, the MTM packet that the perhaps formatted parcel as an IP speech of that parcel and addressing fashion and wherein arbitrary the same IP give a lecture.

[0092] Fig. 6, explanation be an example how local MG perhaps receive the IP parcel of dispatching from a local source MT and write instructions and transfer it (promptly to the external IP network.External IP network 140).When an IP parcel was received internal interface at local MG from the source MT of a local registration, process 600 beginnings were at piece 605 forward.

[0093] process 600 continues to stop 610 source IP addresses at the IP of the parcel of receiving head, and compare with the PRIP address of source MT the LIP address of the MT that at this moment originates, and place promptly is by mentioning the MTID table of local MG.If source IP addresses is identical as the PRIP address, then process 600 continues to stop 620 (promptly.Source MT is its PR knot).Otherwise the place that process 600 continuation obstructions 615 source IP addresses are set to the PRIP address of source MT stopped 620 before continuing.

[0094] at piece 620, the parcel of being determined to be done as for whether receiving is the IP or the MTID speech of speech.If parcel be the speech IP (promptly.The address style field is set at the MTM head and shows IP speech) value, process 600 continues to stop 655 parcels are communicated to the external IP network from local MG place then.

[0095] if, yet the MTM parcel is the MTID of speech, process 600 continues to stop place that 625 local MG determine, and whether it comprises MTID and the PRIP address of destination MT in its MTID table.If it, then process 600 continues to stop IP address, 645 destination at the bag header, at this moment the IP address of the internal interface of local MG, if local MG does not comprise destination MT in its MTID table MTID and PRIP address replaced in the place with the PRIP address of destination MT., then handle 600 kinds of incomes and be cushioned local MG in the place of local MG from 625 pairs of piece 630 parcels of piece and will originate once name inquiry then to the MG network at piece 635.Perhaps, the name inquiry is that the similar name at process prescription inquires 500.

[0096] at piece 640, whether the name inquiry of being determined is successful being done.One example, perhaps this be determined to be done by receipt that perhaps to force a time limit the be a reaction local MG from the MG network.If time restriction exceeds, perhaps then local MG supposes that MTID and the PRIP address of the MT that is inquired are not stored at the MG network, and process 1200 continues to stop the place that 650 parcels are cast.Though be not presented at example.6, perhaps further pass on failure notification to give source MT. at the local MG of some example

[0097] if, yet, name inquiry is successful, and local MG receives a reply relevantly with destination MT from the MG network that comprises the PRIP address, and perhaps process 600 carries out from piece 640 to piece IP address, 645 destination in the place replacement of bag header with the PRIP address of destination MT.

[0098] in case replace at piece 645 with the PRIP address of destination MT at the IP head IP address, destination, perhaps process 600 continues to stop the place that the 655IP parcel is communicated to the external IP network.

Data transmit: preceding hop sends (from local MG to destination MT)

[0099] receives a MTM packet from an outer interface as MG, and, if destination MTID is in the local current registration of the parcel of receiving, to replace destination IP field with the LIP address of MT at the IP of parcel head at an example MG, obtain searching, by correct internal interface addressing parcel then suitably from registration table.

[0100] yet, if MTM packet has the local destination that does not have registration of MTID from an outer interface, perhaps MG lines up parcel T second, perhaps T is dynamically firm.After, when MT obtains setting up new registration procedure or its new PRIP address obtain by another MG circular (extend referring to flowability as follows), perhaps as may line up and dispatch MT all imminent parcels of being doomed for MT perhaps arrive its new PRIP address.

[0101] for this reason Fig. 7 describe an example how local MG perhaps receive the IP parcel and write instructions and transfer its perhaps use 700 of destination MT. a local registration from the external IP network, when local MG is PR when becoming the destination MT of local registration, and IP address, destination is in the outer interface speech of the IP of parcel head to MG.Should feel grateful, perhaps be used to then pay the IP parcel in the LIP address speech standard I P transmission agreement of the IP of parcel head to destination MT. to destination MT if destination MT is its PR knot and IP address, destination

[0102] as shown in the piece 705, process 700 beginnings are when local MG receives an IP parcel to its outer interface IP address speech.After receiving parcel, whether process 700 continues to stop the 710 destination MT that are determined and is perhaps done when the place of the local MG registration of forward direction.Perhaps this be determined by extracting destination MTID from the MTM head of parcel with relatively it is pre-formed MTIDs and MG with the MTs of current registration.Found if compete, destination MT is when the local MG registration of forward direction, and the LIP that perhaps process 700 continues obstruction 740 destination MT is inserted into into IP field, destination in the place of IP head.

[0103] if, yet, match does not have found destination MT perhaps to register previously then, but current not to local MG registration, and perhaps process 700 continues obstruction 715 parcels and is cushioned at local MG and stops 720 local MG wait period then and set up new registration procedure place with the MG network for destination MT.Though not show, inquire perhaps that at the local MG of another example the MG network determines that whether destination MT is to another MG registration.Perhaps, current inquiry is that the similar name at process prescription inquires 700.

[0104] at piece 725, whether resolution destination MT sets up new registration procedure and is done.If destination MT does not set up new registration procedure and local MG within by the quantitative time, parcel or name inquiry are unsuccessful after local MG has accepted, and as shown in piece 750, then 700 ends are cast and handled to the parcel of depositing at piece 715.Yet, if destination MT set up new registration procedure with local MG within by quantitative time or name inquiry, be successful, process 700 continues to stop 730 places of being determined to be done as for whether destination MT registers to local MG then.

[0105] if destination MT registers to local MG, then process 700 LIP that perhaps proceeds to 740 destination MT is inserted into into IP field, destination at the IP head and stops 745 local parcel is communicated to destination MT. from MG place then

[0106] if destination MT does not register to local MG at the MG network, but to another MG registration, then process 700 place of perhaps continuing to stop 735 parcels (with the parcel of any other buffering) should feel grateful from the new PRIP address that MG is communicated to destination MT. IP field, destination can be set at the IP head destination MT. the new current registration of PRIP address MT MG then with use 700 approving and forwarding parcels to destination MT.

Signal and data transmit event time and are arranged in MTM

[0107] shows how the typical arrangement of time of incident is at signal and data transfer phase for Fig. 8.As be described, MT1 805 with its communicating by letter of local MG1 810.Local MG1 810, conversely, with the MT2 820 that communicates by letter of local MG2 815.

[0108] signal time arranges 800.8 from registration phase (WRTT1) beginning between MT 805 and local MG810.Thereafter, name translate phase (WRTT2) shows for obtaining MTID MT2 820, when simple inquiry is replied exchange at MT1 805, between MG1 810 and the MG2 815.In general, perhaps MG1 810 uses the inquiry agreement to obtain from having a name to any remote MGs MT2 820 of the most possible answer of MTID map.Perhaps, data transfer phase (WRTT3) takes place between MT1 805 and MT2 820 then.Note with pipeline transport signal and data transmit by shoulder piggyback NRq and packet to the MRq parcel in the application meeting, will eliminate overhead time WRTT2+WRTT3 be initial data at arm's length distance from MT1 805 couples of MT2 820.And the application examples of delay-sensitive such as VoIP will benefit from compression to the data ratio at parcel with high the higher authorities overhead and shoulder piggyback.

The hands off of MTM internet

[0109] mention Fig. 9, description is another example of system.1 (breaking before being made in) and hard (do afterwards and break) hands off ability that the internet is soft are fixing.In system 900.9, MT 905 to PRMG (registration also be it the upstream agent people) then 935 and by feeding that network 910-1 has set up a following current route 960 and at upstream route 965.

[0110] move to a new network 910-2 and when obtaining a new there, LIP address, perhaps MT 905 sets up new registration procedure and new PRMG940, is different with the 905 previous PRMG935 of MT at this example from its current feeding network 910-1 as MT 905.Therefore, perhaps MT obtains a new PRIP address.For purpose.9, its hypothesis, the MT that moves runs one and uses meeting s with a remote correspondent terminal (CT) 915, does not implement MTM.And IP network 920 is interconnected to feed network 910-1 with each and passes through covering network MGs925 to 910-3,930,935 and 940, as shown.

[0111] at example, the PRMG940 itself that MT 905 selects it are new for upstream agent people MG930 with it.The change of the LIP of MT and PRIP address perhaps by circular to by finding at upstream agent people MG930.Perhaps, information is communicated at upstream agent people MG930 as state information about change.

[0112] at first, following current is relocated and is described.Signal another MGs (that is, MG925) from 960 couples of new PRMG940 of the previous following current route of CT915 deflection parcel at upstream agent people MG930.At an example, only signal (that is, when meeting updating message be described in this) previous PRMG935 upstream agent people 930 and the MG that runs at s following current route (promptly.MG2?925)。Parcel from transportation to the CT s 915 of previous PRMG935 will by it change now direction to new PRMG940 as shown by line 955.

[0113] one example, early stage following current is relocated and is perhaps taken place.The parcel that upgrades will be changed direction to new PRMG940 from MG2 925 from arriving the CT915 of MG2 925 after MG2 925 has received the meeting updating message, need not to move all modes and determined by previous PRMG935.

[0114] about upstream relocating, move from the s parcel of MT 905 and perhaps at first cross PRMG 940 toward CT 915, arrive then upstream agent people 930, otherwise the meeting tuple (source and destination adports) that exchanges them is pointed to first parcel that initial value delivers meeting.This guarantee CT 915 will continue the approval parcel be delivered to it as the legal parcel of s with during hands off MT is later 905.Therefore, be meeting s. and between upstream agent people 930 and another MG2 925, will deliver original meeting tuple at upstream parcel 945-2, deliver new open session tuple at new PRMG940 with between upstream agent people 930 at upstream parcel 945-1.

[0115] secondly, covering is relocated and will be described.In general, MGs will write instructions and transfer data and signal parcel and give and create the not covering transmission of the transmission of the Internet down, interference part each other.Concrete standard is that preferred covering route comprises the shortest length road, the shortest delay road, the highest bandwidth road or the like.At covering MG network.At so preferred transmission example, above the following current that is described is relocated early necessity can not be executed at MG2 925.Perhaps, new on the contrary preferred route forces the selection of some other MG, by between the speech somewhere of finding out.And the flowability of signalling 950 promotes the hands off process between various MGs 925,930,935 and 940.

[0116] according to the measurability of MGs, perhaps relocates rather than MGs, whenever CT 915MTM enables at an example CT 915.How take down notes MTM relocate be with receive and send different by home agent at mobile IP, because the selected fixing MG of family of MTM is MT.

[0117] at an example, hands off be the expection or predictability is arranged, promptly.The following current parcel is that the MG (that is, MG2 925) that multileaving is relocated by following current overlaps the mobile MT 905 in new PRIP address (that is, PRMG 940) that is foretold to two old PRIP addresses (that is, MG1 935) and in advance.The PRIP address that this cover of being foretold is new is the neighbourhood of a certain subclass of the known MGs preceding hands off network (that is, feeding network 910-1) that is positioned at MT.The set that has many modes to select this to be foretold.For example, foretell into new network perhaps the following the tracks of of the neighbourhood of the preceding hands off network of MT, perhaps by simple all MGs service all-networks of selecting based on its geographical position.Their selected new PRIP address of foretelling as a quilt of notice MGs task can " it (that is PRMG940) be MT905, that predicted_new signal message ＂ carries out from last stakes machine MG (that is, MG1 935) or the MG that relocates by special.These signal messages can be expressed the mobile part as signalling 950.

[0118] referring now to Figure 10, description be handle an example of 1000 for how a MTM system, according to invention, the internet hands off of perhaps handling a MT from a feeding network to another.Connection procedure 1000 beginnings when MT loses with its local MG are at piece 1005.Perhaps, one example, MG are found the connection that loses, promptly.By can't pay parcel to MT. at other examples, perhaps MG is the well-informed connection that loses by the component that feeds network.For example, at the CDMA2000 network, perhaps PSN finds the local MG of notice then between termination that PPP connects it and the MT.The connection that loses is in any case found, and process 1000 continues to stop the place that 1010 local MG pass on " predicted_new signal message " to give one or more MGs, refers to the MGs that is foretold later on.New this machine MG of their perhaps selected conducts of MGs that the new signal message notice of being foretold is foretold is when MT connects when MG network and all parcels of indicating them to accept to be communicated to them are MT again.Perhaps, local MG selects to have foretold the MGs according to Several Factors, and what comprise them is have the ability the local MG on communicate by letter and the geographic proximity (if knowing) of feeding network with MT.

[0119] in addition, a knot of relocating is perhaps selected for every CT at an example.Perhaps, this knot of relocating is that local MG is between CT (if possibility) or another MGCT and the local MG at linking-up road.

[0120] after selected by the MGs that foretold, local MG be doomed for MT and the parcel received be multileaving then from local MG to the MGs that is foretold, as shown in the piece 1015.If a knot of relocating is selected, then perhaps parcel is multileaving from the knot of relocating to local MG and the MGs that is foretold.Parcel is multileaving in any case, and they are being cushioned then by the MGs that foretold, as shown in the piece 1020.

[0121] at an example, parcel be multileaving to be buffered in the MGs that is foretold, up to new this machine MG found or, arrived up to the time limit, as shown in the piece 1025 and 1030, respectively.If this new machine MG is found, promptly.If MT connects the network to MG again, then to continue to stop 1040 be not that the parcel of the buffering of new this machine MG is cast in the place of the MGs that is foretold for process 1000.Perhaps, should feel grateful new this machine MG is last stakes machine MG.Though be not presented at process 1000, should further feel grateful new this machine MG may not be wherein arbitrary MGs that is foretold.In this case, perhaps the parcel of buffering writes instructions and transfer MG or the last stakes machine MG that local MG is foretold from the quilt of suitably choosing.It is not important that the special MG that chooses passes on the parcel of buffering to give new this machine MG, and perhaps various method is used to select it.

[0122] no matter no matter new this machine MG is a MGs that quilt is foretold, if perhaps process 1000 continues to stop 1045 parcels that cushion are communicated to MT. from new this machine MG place then, yet, new this machine MG does not have found, and time restriction is arrived, and then process 1000 continues to stop 1035 parcels in place that perhaps all MGs that foretold and last stakes machine MG cast.

[0123] arriving new PRIP address that a quilt foretells is that perhaps the advance multileaving parcel of MT is cushioned at that MG at MG, takes place up to one of following two incidents:

Because this MG is by predicted_new message, the time durations of having been circulated a notice of T_b passes through.In this case, perhaps parcel is cast in buffering; Or

MT has connected to its new network now and has registered this MG as its PRMG.In that case, this MG be actual new PRMG be MT. therefore, its carry out handle the bag header usually before the parcel that cushions of hop PRMG and writing instructions and transfer to MT. otherwise, it is not that new PRMG is that MT is not also at its new following current meeting road that this MG is circulated a notice of it.In that case, perhaps MG casts parcel in its buffering.

[0124] during total internet hands off and the intermediate conversion MGs that the time durations of parcel foretold at quilt that advances can be connected the new network that is supposed to that MT further reduces to it in advance, before it moves into that network field fully.The new network of the new local MGs that this advance connection can be foretold by the quilt that is positioned at selection or the inside of being found out agent MT knot suitably finishes one for MT. send agent MT for all information that its needs can connect, and seems that its real MT is to new network.Therefore, MT can go through and be proved and use new network and obtain for example DHCP router of this new machine IP address from network address dispatch service device.After, when real physics MT (in the MAC number of plies) encloses new network, whole state information comprises new local ip address, the IP number of plies with new network that describe it is connected transfers to it from agent MT. one example, and perhaps this make and be reduced to almost zero during total hands off.

[0125]。11 explanations, one example is during the internet hands off, and how perhaps agent MT is used to cushion parcel is MT.Lose it as MT with its connection procedure 1100 beginning of local MG.This process perhaps found as describe 1000.Process 1100 continues to stop 1110 local MG and passes on the new signal message the foretold place to the MGs that is foretold, process perhaps selected such as description 1000.

[0126] to continue to stop 1115 MGs that quilt is foretold configurations be that perhaps MG that the necessary configuration of local information of the MT. that loses is foretold is communicated to the MG that foretold from local MG as agent MT as an agent MT for process 1100.Be example, perhaps, local MG conveys to the MGMTID that is foretold, preceding LIP address, and relevant with the MT. that loses this list with various account information in preceding PRIP address is only exemplary, the MG that the quilt that informational needs set to be selected is foretold, when agent MT perhaps from changing to.

[0127] in case the information that is necessary by the MG that foretold will dispose the MT as the agent, perhaps it ratify then and confirm with it is connected to which, for example seems its real MT., and perhaps it ask a new LIP address from network address dispatch service device.Perhaps, one example, agent MT pass on its PRIP address to give real MT contact then, and at another example, it cannot CTs.

[0128] after agent MT configuration and being connected to newly, process 1100 perhaps continue to stop real MT that 1120 parcels accept by last stakes machine MG or may a knot of relocating as being described in process 1000, be communicated to and the place in agent MT. be cushioned feel grateful the parcel that is not agent MT the MGs that is foretold process perhaps also be multileaving to and buffering, such as description 1000.

[0129] similar in appearance to process 1000, parcel agent MT and may another MGs that is foretold perhaps be multileaving to and buffering, up to new this machine MG found or, arrived up to the time limit, as shown in the piece 1130 and 1135, respectively.If this new machine MG is found, promptly.MT connects the network to MG again, process 1100 continuation obstructions 1150 are not new this machine MG then, and the parcel of buffering is communicated to the parcel of the buffering of real MT. and feels grateful in situation being cast by the place of the MGs that foretold from agent MT, MG is that agent MT is not new this machine MG, perhaps, parcel is communicated to new this machine MG that passes on them to give real MT. then and gives real MT except that the parcel of passing on buffering, and link information (promptly.Be determined the LIP address that perhaps also is transmitted from agent MT to real MT. at piece 1115) when real MT connected perhaps replace to, this link information all link informations negotiations real MT and between.

[0130] in situation, real MT is connected to and is not that agent MT connection is right, it should understand agent MT or another MGs who is foretold, perhaps pass on the parcel that only cushions to give real MT. in these situations, agent MT transmits link information may be dispensable, because perhaps link information is only applicatory to which agent MT is connected, rather than newly which real MT is connected.

[0131] similar in appearance to process 1000, if this new machine MG is not determined (promptly.Real MT no longer connect to) within a certain time limit, perhaps process 1100 continues to stop parcel and all link informations of the 1145 places bufferings of abandoning in agent MT then.In addition, agent MT cancellation is selected should feel grateful as agent MT., if parcel has been cushioned at other MGs that foretold, perhaps abandons them.May be because inexpressible MTM internet hands off becomes with the present invention, the present invention is favourable again.

MTM extends and operates in NAT PSN front for MG

[0132] be following discussion, its hypothesis, MT is that the privately owned speech that distributes is by NAT PSN.Therefore, MG is that PRIP becomes MT, means that it is replaced source IP addresses and outwards goes to the parcel the inside to the PRIP address (promptly at the network of receiving from PSN.Its outer interface address).

[0133] Figure 12, for example, it is perhaps maintained to show how an example connects, although an address-port changes.Particularly, the PSN of supplier's network carries out typical NAT and act as safety.It will translate private address and UDP or TCP interface channel number is public_address: from MT usually at each parcel: this reveal mention as the right public_port of adport right.The adport of a uniqueness to be assigned as every connection by PSN from every MT. problem is, when MT (promptly, MT1205) time from a PSN separated and then connected or otherwise move 1210 to new PSN 1215, when the old application that it is still arranged connected beginning, perhaps new PSN 125 distributed a new adporr to arriving each those old connection.

[0134] yet, MT 1220 can not approve that at another end that connects like this this new adport is right, and perhaps casts parcel and be connected.For example, when 1225 first TCP connect, it be assigned with an adport to a1:p1 by PSN 1210.Thereafter, the linking-up road that moves it as MT 1205 is to connecting 1230, it is right that PSN 1215 is assigned to 1205 new adport of MT, expression is worked as MT 1220 from receiving parcel 1230 with new being connected of source interface p3 of coming as a3:p3., it can not approve it as belong to MT be connected 1205 and or will cast parcel, even perhaps more mistaken they as belonging to another connection.

[0135] therefore, an aspect of invention is the NAT that works later on by PSN to be changed at an adport by causing being connected with correctly old the sight of avoiding above-mentioned, uses anything will refer to that invariant connects id (ICI) and plans.ICI plan translation openly comes source interface to deliver the parcel that connects to get back to it and original disclose source interface, so that parcel will suitably be recognized.For example, example MG1235 translation port p3 get back to p1 connecting each parcel of the inside and MT 1230 before forward parcel 1220.It should be noted that ICI plans perhaps further to translate IP address and port number at parcel.

[0136] one example, perhaps its open parcel river that connects inserts false MTM parcel at each for MT 1205, signalling conn_id which can be the element of state information, perhaps special, the integer conn_id that unique identification is connected MT. perhaps constitute especially state information as element or, as the identifier of an invariant for connecting.That connects packet to each false like this parcel in order to be connected MTM, except 1) perhaps to be set up its same destination of the number of plies 4 (UDP, TCP or the like) head delivery and source speech combination of interfaces and this that shows be conn_id type signal parcel to the S/D code, and 2) its number of plies 4 payloads comprise actual connection id.

[0137] at some example of ICI plan, perhaps connection id is selected at MT 1205 and comes source interface as the place (privately owned) that connects, and perhaps gives a lecture the right twice-cooked stir-frying meat mincing of source interface for connecting as the place.

[0138] for toughness arrives loss, perhaps these false parcels insert with suitable regularity within the parcel river that connects.One example connects id and perhaps signals as early as possible, for example after the beginning at it before all real parcels that connect or after the registration again at MT 1205.This makes ' both open loop ' stage reduce to minimum, thereby the change of open port is for connecting not by forcing the MG registration 1220 that drops on remote MT under the parcel.

[0139] MG1235 perhaps safeguard a local conn_id table be every MT. at an example, each entry is a tuple (conn_id::orig_port::new_port).Accepting conn_id type signal parcel (promptly from a local MT who registers, MT 1205), if perhaps MG1235 searches the found connection of the table entry id of its that MT. conn_id field proportioning of conn_id table and has delivered parcel, the new_port field of that entry is come source interface to replace in the parcel the inside, suppose, new_port, and come source interface to be unworthy of ratio.Come source interface perhaps to be replaced by the orig_port field of that entry in the parcel the inside.But, do not have foundly at the table entry of parcel if coupling connects id, perhaps MG1235 creates the conn_id field and is set up that delivery parcel, and orig_port and new_port field are set up coming the new entry of source interface in the parcel the inside.After finishing above-mentioned table renewal, MG1235 casts the conn_id parcel according to an example.

[0140] receiving the MT of MTM packet from a local registration, mate to come source interface found at the table entry of parcel the inside if perhaps MG1235 searches its that MT. new_port field of conn_id table, that comes source interface perhaps to be replaced by the orig_port field of table entry at parcel.Receiving that the MTM packet is doomed to the MT of a local registration, perhaps MG searches its conn_id table.If orig_port field coupling destination interface is found at the table entry of parcel the inside, then perhaps that destination interface is replaced by the new_port field of table entry at parcel.Thereby with the ICI plan, another end of all connections will be seen the connection of address-port any NAT router that pipe change adport is right unexpectedly of a uniqueness for its from MT.

[0141] example of ICI plan is implemented to meet with invention and is described in.13. it is special.How perhaps the local MG of 13 explanations receive that from the MT of a local registration parcel by NAT PSN with change source address and come source interface to the initial source address with come source interface, if necessary, gave the external IP network before passing on parcel.Process 1300 beginning is at piece 1305, and it is whether firm local parcel is when a local MT. process receives that a parcel 1300 continues to stop 1310 as local MG " comprise connect id. " perhaps false parcel this depend on the S/D code field of seeing at the MTM of parcel head.It is the parcel of a vacation for the value that the parcel of a vacation will have S/D code field to be set to show.One example, MTM module in MT, perhaps periodically transmit false parcel intersperse with packet in the transport layer session.At the example of first-selection, be first parcel that a meeting transmits, in all register requirement bag outsides, be the parcel of a vacation.

Perhaps, the parcel of [0142] vacation comprises in its transport layer payload and connects id. and connect the perhaps selected local source interface as meeting of id (promptly.TCP or UDP have held and have been assigned to the TCP or the UDP meeting that can not change) or a certain other unique identifiers, when meeting is opening.At an example, connecting id perhaps is that LIP is meeting with coming the twice-cooked stir-frying meat mincing of source interface.

[0143] if parcel is the parcel of a vacation, then process 1300 perhaps continue to stop 1315 it be firm place connect id at parcel whether in the current registration of local MG.Local MG perhaps safeguard comprise connect identity card for current in MT. be that perhaps this table of table of open all meetings refers to the conn_id table.If connect id in the current not registration of MG, then perhaps process 1300 continues to stop 1330 new entries for connecting the place that perhaps id is transfused to the conn_id table.Perhaps, an entry comprises in the conn_id table and connects id, the original interface of meeting and new interface.At this moment because do not have current entry in the conn_id table for this extraordinary meeting, connect the id field and be set up connecting id at parcel, and original interface and new peer-port field be all gather to come source interface transport layer in front face at parcel.After the table entry was transfused to the conn_id table, perhaps parcel was cast, as shown in the piece 1335.

[0144] if, yet, connect id in the current registration of MG, process 1300 perhaps carry out from piece 1315 to piece 1320 come source interface in the place of parcel in the conn_id table and new peer-port field comparison with to be connected id relevant.If new peer-port field mates to come source interface in the parcel the inside, then perhaps it suppose, comes source interface not change, and the table entry does not need to upgrade for connecting id.Perhaps, process 1300 continues to stop the place that 1335 parcels are cast then.

[0145] if, yet, new peer-port field with connect that id is relevant not to match source interface at piece 1320 in parcel the conn_id table, perhaps process 1300 continues to stop 1325conn_id table entry for connecting the place of id renewal.At piece 1325, the new_port field is come source interface to replace at parcel.Perhaps, process 1300 continues to stop the place that 1335 parcels are cast then.

[0146] mention obstruction 1310 now, if the parcel that transmits from MT is not the parcel of a vacation, perhaps process 1300 continues to stop 1340 and comes source interface in the place of parcel in the conn_id table and new peer-port field comparison.Should feel grateful come source interface parcel in the conn_id table with new peer-port field relatively because connect the actual data packet that id may not be delivery.If new peer-port field does not match source interface in parcel the conn_id table, perhaps process 1300 continues to stop 1355 parcels are write instructions and transfer the external IP network from MG place.Should feel grateful entry cannot be found at example, MT in the beginning of meeting or when it is connected to PSN again, did not transmit the parcel of a vacation before transfer data packets.So packet is write instructions and transfer at piece 1355, found 1340 because the entry of proportioning does not have at piece, perhaps,, NAT PSN comes source interface if having changed by destination MT refusal.

[0147] if, yet the table entry of proportioning is found 1340 at piece, perhaps process 1300 continues to stop 1345 and comes source interface to replace place with the relevant new_port of elephant 1340 of the same id of connection at the table entry at piece orig_port also allowable at parcel.One example come source interface to replace at parcel original interface also allowable, and perhaps it is replaced at other examples, has only when coming source interface not match orig_port.No matter example, perhaps process 1300 continues obstruction 1355 parcels and is write instructions and transfer place to outside IP network then by MG.

[0148] perhaps another example of above-mentioned ICI plan is implemented, need not be to the purposes of the parcel of vacation.At this example, connect id and perhaps deliver an other field at MTM face in front.In this way, with being connected id and can delivering of some suitable regularity in MTM packet the inside.Perhaps, the operation of MG is simplified then to simplifying some.Be example, receiving the MT of MTM packet from a local registration, perhaps, the table entry that MG searches its that MT. proportioning of conn_id table is that conn_id field coupling connects id in the parcel the inside for that parcel, if connect id and be the MTM face in front that has parcel, perhaps the new_port field mates to come source interface in parcel the inside, is not the MTM face in front that has a parcel if connect id.Come source interface perhaps to be replaced then, if find by the orig_port field of the table entry of proportioning at parcel.

[0149] and, at the MT that receives that the MTM packet is doomed registers to a locality, perhaps, the table entry that MG searches its that MT. proportioning of conn_id table again is that conn_id field coupling connects id at parcel for that parcel, if connect id and be the MTM face in front that has parcel, perhaps selecting orig_port field, a inside to mate to come source interface in parcel the inside, is not the MTM face in front that has a parcel if connect id.Come source interface perhaps to be replaced then, if find by the new_port field of the table entry of proportioning at parcel.

[0150] parcel of vacation except that avoiding ceiling, the benefit of the ICI of above-mentioned modification plan is that by the extreme example id that uses delivery and connect at each MTM packet, and perhaps you can avoid ' both open loop ' stage may be with above the false parcel ICI plan that is described.

[0151] and at these examples can be appreciated that the present invention may provide and may handle frequent micromotion and the mobile flowability that is modified of macroscopic view, need not between receive and send for example degeneration of telephony quality of problem.

The MTX plan is in the compression of MTM head or avoids MTID

[0152] the MTX plan is to chop up the MT index that MTID goes into a weak point substantially, claims MTX, during registration phase.From MT, MTX will deliver rather than MTID at all following MTM parcels.Receiving MRq register requirement bag from MT, MG chops up MTID and arrives the MT index that claims MTX in MRq parcel the inside.

[0153] at an example, MTX is that global ground is unique.At the MT period of registration, local MG at first inquires other MGs, and is wherein arbitrary, wherein can reply with MTX be that MTID has delivered inquiry.Yet if another MGs replys, local MG may can't help Hash and create MTX then.Fault-tolerant do agreement perhaps for MTX also be embodied among all MGs inquiry reply guarantee the global unique MTX in ground be every MT. at an example, global MTX perhaps be simply contact (MG_id::local_MT_id) MG_id be the id numeral of uniqueness of local MG of MT among all MGs of cover the place and this machine id numeral of the local_MT_id uniqueness that is MT among all MTs with its local MG.

[0154] at another example, perhaps MTX is that MG is concrete.Be that perhaps MTX is that unique locality among MTs is registered in MG.But after the registration of a local MT, MG plays the MG_address-MTID-MTX tuple to other MGs.When MT set up new registration procedure with new MG, perhaps it gave the PRIP address of its old MG, its old MTID and old MTX to new MG.

IP number of plies Multi-AN package shipment (MAPF)

[0155] and MAPF, MG is that every MT safeguards, all concrete IP addresses that feed network (answer) lists and MT are to the current connection of which MT.These data are communicated to MG during registration phase from MT.Be example, dual mode MT is connected to WiFi and WiMax feeding network at WiFi and the WiMax socket that perhaps those networks are useful on, respectively, when IP address separately by feed router distribute (that is, dual mode MT perhaps have 192.168.11.120 as it privately owned WiFi concrete IP address and 22.231.113.80 as its concrete IP of open WiBro address).At some example, it is right that MG can write instructions and transfer, perhaps receive parcel from, a plurality of answers because true during registration phase, MT has passed on concrete IP the address previously.

[0156] it be useful at first defined the parcel flow process as little packet sequence to/from MT with belong to and run at MT (that is, the same application routine of parcel is browsed or FTP meeting or the like from HTTP).It is that downlink direction and MT are to empty direction of communication that the MAPF transmitter is mentioned MG.The MAPF receiver is mentioned MG for being the downlink direction to empty direction of communication and MT.Given this, fringing mode and multileaving mode are that MAPF will be talked about now.

[0157] at the MAPF stripping means, the parcel flow process allow division enter multiple secondary flow move other wherein each.At better example, demoulding sequence numeral of each parcel delivery is so that can be reassembled the parcel flow process from terminal secondary the flowing of its another (de demoulding) in the parcel flow process in its original sequence.At the instantiation of this invention, the serial number of the agreement on upper strata, for example those TCP and RTP can be repeated to utilize when demoulding sequence numeral.

[0158] instantiation of this invention will use different algorithms for dividing the parcel flow process among answering.For example, perhaps use a kind of splitting algorithm of simply being weighed.In this case, flow process is divided among answering in addition a fixing ratio.Perhaps, this ratio is answer in addition (that is, for fringing links and 100 kbps CDMA 1x link at one 900 kbps WiBro, fringing 90% parcel is in WiBro and 10% CDMA link) according to the average bandwidth level of knowing of radio link.Another example of a kind of algorithm of division is a kind of clever dynamic splitting algorithm.In this case, flow process is divided (certain a few combination do dedicated bandwidth, loss and error rate) usually for answering in addition at a dynamic proportion that is the radio link condition of current estimation.The link situation is estimated can finish at link, IP or transport layer.

[0159] the MAPF receiver parcel of perhaps ordering flow process according to they demoulding sequence numeral by before them to upper strata or next knot.This parcel order can use algorithm to finish those that use similar in appearance to TCP.One example, if upper strata (for example TCP or RTP) use serial number, MAPF perhaps save demoulding serial number and allow the upper strata handle it.

[0160] in MAPF multileaving mode, the parcel flow process is replicated in other answer.This is that IP number of plies version in the soft hands off plan generation multileaving of physical layer is to different bases, for example at CDMA2000.

[0161] the MAPF transmitter is changed each IP parcel and is become multileaving variable (m distortion), and perhaps each m distortion writes instructions and transfer one place.The i that the m distortion is write instructions and transfer, be example, being the identical original parcel that resembles, except 1) its IP address field that MT arranged is i in the IP address that its head is set to MT, and 2) its delivery is set to a MAPF id numeral of all m distortion that are similarly same original parcel.At some example of invention, the serial number of the agreement on upper strata (that is, TCP head, RTP head, differential threshold of IP head or the like) can be repeated to utilize when MAPF id numeral.Attention is at MAPF transmitter and receiver, each m distortion of an original parcel can by to (the IP address unique identification of MT is at the IP head:: MAPF id numeral).

[0162] at the MAPF receiver, the m distortion of overlapping same original parcel obtains collapsing the M copy into original parcel.In the destination of parcel, perhaps all these M copies pass through the upper strata, normally TCP or UDP.Here, M is the parameter that can dynamically be adapted to or be adjusted into statically preferred performance by engineer or enforcement.Big more M parameter, those M parcel of great more chance are honest and upright and do not abandon by its upper strata checksumming of destination.Yet big more M parameter, height will be that the ceiling on upper strata duplicates parcel in processing.Notice that when the MAPF receiver is MG, perhaps M is set to 1, to duplicate parcel be safe because do not bear the destination of parcel.

[0163] instantiation of this invention uses different algorithms will collapse parcel.For example, an a kind of simple collapse algorithm perhaps M is accepted the copy that the m distortion can be converted into original parcel, and that parcel m is out of shape all, and all the other can descend.Perhaps, conversion comprises simply that the IP address of removing the MAPFid numeral and replacing MT is with that original parcel.

[0164] alternatively, perhaps also use a kind of clever collapse algorithm.In this case, all m distortion of parcel are accepted, and have the M of corrupt these m distortion of the minimum possibility of M to be plucked.At an example, MAPF acts on the operation of the checksumming on each m distortion carrying out IP checksumming and upper strata.Then, M or all that m distortion with correct inspection and, which is littler, perhaps by to the upper strata.Perhaps abandon parcel with the inspection on incorrect IP head or upper strata and.Perhaps, it is suitable at a certain example M=1 being set, because correct check and show that usually a honest and upright parcel and there are that do not have need be by duplicating honest and upright parcel to the upper strata.

[0165] two special circumstances of the MAPF demoulding or multileaving are so-called " soft hands ofves ", and " selection founding ".With soft hands off, the parcel flow process is a fringing or for a certain limited blanking time of only multileaving, but, referring to soft hands off blanking time, beginning is when MT has connected to the answer above.After soft hands off blanking time, flow process entirely is switched to travelling unique.With select situation, parcel flow process also fringing or multileaving is a certain limited blanking time.Yet in this case, that blanking time, MG selected later on preferably for example bandwidth, mistake or the loss late or the like according to some link quality standard.The parcel flow process of this selection only moves then.

The inner many bases guard station package shipment (MBPF) of the IP number of plies

[0166] Fa Ming another aspect is to use MBPF to be intended to be IP number of plies answer for using a plurality of bases to sending/receive parcel network edge the supplier between MT and parcel service knot (PSN).It thus be that the IP number of plies conceptization of the soft hands off of physical layer are within a plurality of bases of same feeding network.

[0167] MBPF plans at an IP head delivery base Id (BSID), can be considered in a similar manner and MTID.Perhaps, BSID is used to show which base is by writing instructions and transfer parcel.Instantiation comprises that delivery BSID is in the option field of IP head or alternatively 3.5 of the numbers of plies of separating.

[0168] similar in appearance to MAPF, the MBPF transmitter is at MG or PSN may be implemented as the downlink direction and be that MT is to empty direction of communication.The MBPF receiver is at MG or PSN may be implemented as empty direction of communication and be that MT is the downlink direction.

[0169] it go the lower number of plies or next become the corresponding base of transmission before, perhaps the MBPF transmitter is provided with BSID at each parcel.One example, the lower number of plies or next knot may Mapping B SID to correct base and respective addressed or transmit parcel and be sure of that it arrives in that base.The MBPF receiver will be removed all the other that BSID handled the IP number of plies from a parcel of receiving before passing through it.

[0170] referring now to.14, be an example of the enforcement of MBPF operation in the explanation of downlink direction.At an example, possible place is MTM door 1405 or PSN1410 for the MBPF transmitter.Parcel 1415 is communicated 1405 from door and gives PSN 1410.Before parcel 1415 is communicated to base 1420-1 and 1420-2, corresponds to the BSID 1420-1 in one of base and 1420-2 and will be transfused to into the IP of parcel 1415.Thereafter, what is that perhaps parcel 1415 is transmitted as parcel 1425-1, and 1425-2 is to base 1420-1 and 1420-2, respectively, parcel 1425-1 input with corresponding to the BSID 1420-1 in base and parcel 1425-2 input and BSID 1420-2 corresponding to the base.Thereafter, MT1430 perhaps receive two parcel 1425-1 and 1425-2 and know which base they from.At an example, MBPF receiver 1435 is removed BSID from the parcel of receiving and be processing before being passed through them.

[0171] similar in appearance to above-mentioned MAPF plan, the MBPF plan also has two mode-demoulding and multileavings forward.

[0172] at stripping means, the parcel flow process by split into multiple secondary flow move a different base wherein each.Each parcel delivers a demoulding sequence numeral better, so that the parcel flow process can be reassembled the secondary IP of being flowing in number of plies the inside at another side from it.At some example, the serial number of the agreement on upper strata, for example those TCP and RTP can be repeated to utilize when demoulding sequence numeral.The possible division of rearranging algorithm and parcel the MBPF receiver perhaps be identical resemble those describe above the MAPF plan about, except by a base replacement.

[0173] in the multileaving mode, the parcel flow process is replicated trip all over a plurality of bases.This is that the IP number of plies version of multileaving is to the different base at the same feeding network of CDMA2000 for example takes place in the soft hands off plan of physical layer.

[0174] the MBPF transmitter is changed each IP parcel and is become multileaving variable or (m distortion), and the place in a base is write instructions and transfer in each m distortion.Perhaps, I am the same with original parcel for the end base that m distortion is write instructions and transfer, and show base i except arranging the BSID field that it is set, and its delivery is set to a MBPF id numeral of all m distortion of being similarly same original parcel.At some example, the serial number of the agreement on upper strata (that is, TCP head, RTP head, differential threshold of IP head or the like) can be repeated to utilize as MBPF id numeral.Attention is at MBPF transmitter and receiver, each m distortion of an original parcel can by to (the BSID unique identification:: MBPF id numeral).

[0175] at the MBPF receiver, perhaps the m distortion of overlapping same original parcel collapses into the M copy of original parcel.In the destination of parcel, perhaps all these M copies pass through the upper strata, normally TCP or UDP.Here M can be the preferred parameter that dynamically adapts to or adjust statically that shows.Big more M, those M parcel of great more chance are honest and upright and do not abandon by its upper strata checksumming of destination.Yet bigger M is that the ceiling on great more upper strata duplicates parcel in processing and will be.Note for promptly empty direction of communication.At the MBPF receiver, do not duplicate parcel because do not bear the destination of parcel, be safe at MG or PSN, M=1 is set perhaps likees.

[0176] perhaps MBPF multileaving receiver uses various different algorithms collapse parcel.A kind of such algorithm is that a M accepts the copy that the m distortion is converted into original parcel, and that parcel m is out of shape a kind of simple collapse algorithm of all the other declines.Conversion comprises that simply removal MBPF id and BSID numeral are from the IP head.Another kind of possible algorithm is that all m distortion of parcel are accepted, and these m distortion M has the minimum a kind of clever collapse algorithm that may corrupt be plucked of M then.At an example, MAPF acts on the operation of the checksumming on each m distortion carrying out IP checksumming and upper strata.Then, M or all that m distortion with correct inspection and, which is littler, perhaps by to the upper strata.With the inspection on incorrect IP head or upper strata with abandon parcel.At a certain example, M=1 is set perhaps likees, because correct check and show that usually a honest and upright parcel and there are that do not have need be by duplicating honest and upright parcel to the upper strata.

[0177] similar in appearance to MAPF, the soft hands off of MBPF and to select founding be that MBPF demoulding special circumstances or multileaving and operation repetitive are described and above-mentionedly implemented about MAPF.

The demoulding that QoS understands is at MAPF or MBPF

[0178] at some example, perhaps stripping feature knows the qos requirement that the parcel fringing is used on MAPF and MBPF describe.For following discussion MAPF (or MBPF) transmitter and receiver will refer to the serviceman and the de serviceman, respectively.And, regulation ' link ' will be used to mention parcel at MBPF route at a special feeding network at MAPF or pass through a special base.

[0179] demoulding plan of understanding at a QoS of an example can be assembled the available bandwidth of a plurality of links effectively, need not to introduce apparent extra delay or postpone anxiety in the parcel flow process because bandwidth and postpone the difference of a plurality of links.For example, end-to-end delay zone of TCP application requirements, VoIP requires end-to-end delay and postpones the anxiety zone, and the requirement of making video recording of flowing out postpones, and anxiety is takeoff and minimum bandwidth.Perhaps, the extra delay of the qos requirement of every application and delay anxiety are limited one or more following action of use:

1. it is monitored that bandwidth and link postpone m, and estimate continuously or " uttering a word pop " message or by packet or by linking number of plies information by special signal probe.The end-to-end delay of parcel is perhaps also monitored;

2. if the parcel of application need sequencing or be responsive rearranging to parcel, effectively postponing for the parcel flow process road between the serviceman and the destriper is the delay d_max of the all-links maximum that comprises in the demoulding.In this case, only those are linked at the d_max that the demoulding comprises such generation and do not increase end-to-end delay outside the delay zone of the needs of practical application;

3. similar in appearance to #2, the worst delay anxiety serviceman of increase is that maximum delay is distinguished delta_max between any two links that the demoulding is comprised to the destriper road.In this case, only those are linked at the delta_max that the demoulding comprises such generation and do not increase the end-to-end delay anxiety outside the zone of the needs of practical application;

4. parcel is perhaps the same periodically is transmitted as far as possible in each link.Therefore, at an example, perhaps the serviceman carries out and ' is weighed around the predetermined parcel of robin in different links, promptly.Have 10 to take advantage of bandwidth link 2 if link 1, the serviceman gives each the 11st parcel in link 2 and remaining end link 1; And

5. accurate more example is that hard real-time application will be made a new demoulding decision each parcel for the link of giving it.One example, t are the current time, and perhaps the t_{q time of advent of estimation, x} parcel q, are expressed as follows if q send at link x at destriper:

t_{q，x}＝t+L/b_x+d_x，

There L is the length of parcel q, and b_x and d_x are respectively bandwidth and postpone link x.Select to reduce to the link of minimum then | t_{q, x}-t_{p, x}| there p is that parcel is previously to q.

Network (MOSTNET) MTs and MGs that the covering that flows flows out

[0180] MOSTNET is that a covering network is to mean forward, and the data flow (that is, making video recording) ' pellucidly ' of division and multileaving does not need to revise network router or TCP/IP heap or is applied in terminal owner, can at random be mobility.At an example, each MOSTNET covering knot is a MT or MG.MGs part in front perhaps form covering knot and guarantee seamless river mobile such as description.

[0181] " river " mention the happiness that will pay from the person of issuing an order position all sequences (a kind of application of sending) to a receiver (a kind of acceptance application) at a basic network.Generally, basic network is the ip router the Internet, and the position betransported in the IP parcel the inside number of plies 4 payloads.Accept to use and perhaps accept the same order that all are sent from the application of sending by them.Although one the tolerant river of loss is that an acceptance is used and may some bit-loss correctly be worked from the place of river.Equally, although the variation that tolerant river of mistake is an acceptance is applied in the value that the place of river may be on some correctly work.Example comprise encode digitally make video recording, audio frequency river (that is, the MPEG river) is loss and wrong tolerant, and for example news transmission of other data flow, stock information or the like.Attention time limit " river " comprises that in the Internet all bit sequences will betransported at network, and, therefore, comprise all TCP or UDP message.

Article [0182] one, river transparent is delivered to a kind of acceptance and uses and mean that the river position arrives to accept to use to have given them and accepted like this to use by same order and correctly consume river, seems that they are from its original person of issuing an order.Therefore, be invisible at an example covering network to accepting application.

[0183] to the purposes of the knot covering network of living in suitable point at basic network, perhaps be used to reach one or more following task:

1. river signal and control: to the purposes of internode signal is coordinated and control action is bitten for the river of uniting the covering that reaches following and tying processing and forward,

2. river division: reach clever division river and go into many routes of several secondary data stream addressing and for example use all basic network bandwidths can utilize expeditiously all covering knots at the covering network,

3. river forward or accept (French Franc): belong to the IP of another following current knot of the parcel of IP forward parcel after doing suitable translation or addition of river or the head on upper strata and for example guarantee that the transparent payment of river is to accepting the receiver of the request that is applied in.To the following current knot, perhaps French Franc is done other parcels processing or is remedied task, promptly before dispatching parcel.The parcel that loses is remedied from the upstream knot, and cushion parcel and do flow control between own and following current knot or the like,

4. river stores and carries over: or with little packet form promptly, a certain subclass of the IP parcel of receiving of river is stored in the knot random time, when pure payload (the river position of extraction).Definite reception order as the quilt of parcel seen in the IP number of plies 3,4 or above-mentioned.After, this subclass that is stored obtains being carried over when requiring by the receiver of all requests at network.Carry over and comprise that definite that subclass of original sequence of IP parcel of duplicating is created and deposited and sends them to the defeated dealer of the river transport that occupies a narrow space.Intermediate store thereby still be the application of invisible receiver to the request of seeing river seems it from the original person of issuing an order,

5. river flowability: the transparent payment of safeguarding river is finished the pipe person of issuing an order or receiver in the river session at the IP address or the receiver of port number that move among different networks or change them.Knot may among the private network even move after the NAT router.They can even mobile covering network promptly.Even wish to send to or accept river in the river session from different cover covering knots.Even transparent payment is maintained like this between moving period.

[0184] one example, the network covering of knotting live in suitable point perhaps be used to execute the task at a basic network 1 above-mentioned.At another example, task 1 and/or person 2 perhaps two be performed.At quiet another example, distribute 1 and/or 2 perhaps carry out with one or more 3,4 and 5 above-mentioned.

The exemplary example of MOSTNET component

[0185]。15 show a MOSTNET 1500overlaid in the Internet the inside one of component task covering knot of demonstration with it.Particularly, MOSTNET 1500 comprises knot 1510-1 to 1510-5, and the person of issuing an order uses or the river person of issuing an order 1520 is incorporated into knot 1510-1, and receiver is used or river receiver 1530 occurs in knot 1510-5, as shown.15. the blast 1510-4 of an exemplary knot also shows and comprise river transportation carrier or receiver 1540, river seperator 1550 and river store or carry over 1560.Three possible parcel roads pass knot 1510-4 and show as road 1570-1 to 1570-3.

[0186] as shown.Article 15, one, original river 1580 offers MOSTNET 1500 and uses 1520 by the person of issuing an order.Knot 1510-1 divides original river 1580 and sends secondary data stream 1590-1 to 1590-3.And, knot 1510-4 show as in conjunction with received secondary data stream 1590-2 and 1590-3 and, suppose that the secondary data stream 1595 of associating arrives destination node 1510-5.

[0187] at an example, its hypothesis, serial number of each parcel 1580 delivery of river.Flow out if river 1580 is TCP or RTP multimedia, TCP or RTP serial number are loaded on to use as serial number in the jar and divide as river.Otherwise covering network 1500 may be introduced its serial number and go into parcel at MTM head even the external number of plies 4 (for example TCP) head that the option field or the inside, the inside of the IP of parcel head are inserted into, uses between two covering knots just in case the number of plies 4 is dug a hole.

[0188] after, river division and again in conjunction with being described.One example, perhaps river (that is, original river 1580) is split into many secondary data stream (that is, 1590-1 is to 1590-3), and whenever which is discernible by a unique secondary data flow identifier in global ground, substream_id.The little packet sequence of secondary data stream every which be that discernible to be split into part id of river part in logic be part s thereby be tuple＜substream_id by the part id. of a uniqueness, length, skip_length, next_position〉there substream_id be the secondary data stream that it belongs to, length is that the quantity of parcel is in this part, skip_length is that difference is docile and obedient preface numbering and is linked up parcel in this part, and next_position is that the serial number of first parcel of next part is in secondary data stream.Integral part id is in the delivery that begins of part, typically at the face in front of first parcel of part.Therefore, substream_id does not need only once to deliver each parcel, but is each part.

[0189] at all knots (that is, knot 1510-1 is to 1510-5), following one by one little packet sequence is that river will be that general mixing partly is from different secondary data stream.Knot watches serial number to determine when each part begins and finishes at each parcel.At an example, every secondary data stream each parcel is arranged or the part queuing that is assembled by its buffering of the order of its serial number.Perhaps, those bufferings are invested river storage (that is, the river storage 1560) or river transportation carrier (that is, river transportation carrier or receiver 1540) or river recombiner (that is, river seperator or recombiner 1550) then.

[0190] the river recombiner (promptly, river seperator or recombiner 1550) perhaps be used for (promptly in conjunction with many following one by one secondary data stream, secondary data stream 1590-2 and 1590-3) river reassembles them then and goes into many secondary data stream of going out (that is, secondary data stream 1595).For example, consider that a river splits into two secondary data stream delivery rivers even strange and parcel in each bar promptly.(1，3，5。) and (2,4,6.)。Perhaps and then in conjunction with these two secondary datas recombiner flows into 3 rivers of going out promptly (1,4,7.)(2，5，8。) and (3,6,9.)。These 3 rivers of going out will have new secondary data flow identifier to be assigned with they globally can be discerned by all uniquely accepts knot.

[0191] will be described after signal and the control (SC).Covering river obtains by specifying division or combination and following uniqueness are defined in each covering and tie n again.About division or combination again, for every river x secondary data stream is received in some of knot n, SC will specify that (x n), is that the secondary data stream of going out is from n.About down, secondly SC will specify that (y n), is that next hop is become every secondary data stream y that goes out from n.

[0192] one or more covers knot, even the knot of external enthusiasm, and perhaps function is as the river controller.At some example, perhaps knot runs a kind of algorithm of river covering and determines that among themselves (x, n) and down (y n) is every x, y, n.Definite algorithm can by the traffic engineering method be designed the flow algorithm of polynary commodity for example or heuristically by anyone skillfully at art, use the basic network topology structure and the knowledge of bandwidth.Be each knot n, perhaps controller sends signals to n, (x, n) and down (y, n) information is that all are to (x y) is desirably in n in outlet.

[0193] perhaps MOSTNET upgrades and takes place, when 1) when a new covering knot adds MOSTNET, 2) an existing covering knot break away from, and perhaps 3) the covering knot needs to change near its knot of cover.One example, MOSTNET upgrade perhaps to finish and improve the river quality.It perhaps also takes place because the flowability of the failure knot of some knot.Tying perhaps the locality near the new cover depends on then by knot or at master controller.

[0194] perhaps the MOSTNET renewal also dispatches keeper's knot like this.Perhaps, controller and keeper's knot are implemented at same physical server.Any covering knot can is taken on keeper or controller.The keeper ties notification controller knot MOSTNET and upgrades, and their algorithm of correspondingly rerunning upgrades river and covers and be updated to all relevant coverings with signalling steam covering and tie.

[0195] the river distribution that be extensive or geographic range is interior, every receiver only belongs to a local covering network and ground square controller.These controllers are communicated with each other and are reached global covering net.

[0196] river will be described forward or after the acceptance (French Franc).Each has current IP address and a port number of having it is every river, and we claim French Franc adporr to be the river French Franc module (that is, river transportation carrier or receiver 1540) of that river at that knot.

[0197] at all knot n, to following current knot, the French Franc module is replaced initial source and destination adports with the adports of n and following current connection youth module separately at the bag header before dispatching the IP parcel.Those original adports deliver other suitable places now at the IP/layer-4 of parcel head: promptly.In the IP option field, perhaps interior at the IP/layer-4 head, use the number of plies 3 or the number of plies 4 just in case dig a hole.

[0198] on the contrary, from tying in the upstream, the French Franc module is used from (with having deleted) that the inside bag header is extracted original its adport field of adport replacement after receiving the IP parcel.

[0199] if knot flows, its French Franc adport is whenever perhaps river change.The French Franc adports that knot may be followed the tracks of every other changes then is effective as MG by mutual signalling adport change or to a certain the 3rd common knot service.For knot send parcel, the complete unambiguity that perhaps the unique MTID in global ground delivers parcel is about definitely.

[0200] river storage and carry over (SR) after will be described.Be the local memory of river, payload layer 4 (promptly.TCP payload or RTP parcel comprise the RTP head) be that the number of plies 4 that the French Franc module is dug a hole is tied less than a following current with the river parcel that is stored, and would rather arrive (that is, river stores or carries over 1560) and run in knot and tin a kind of local SR application at the local number of plies 4 connecting interfaces.At an example, if enough CPU (central processing unit)/memory resources are available, this user's space that is applied in operating system runs in the benevolence space, but perhaps runs partially.In general, SR uses and perhaps revises original steam position, for example, and position of recovering to lose or the operations improvement river quality of carrying out transcoding.

[0201] when the part that is stored of river must after be provided to the receiver of a remote request, SR uses the river that littler packetize (packetizes) is stored, and seems the original person of issuing an order of its river.Perhaps, these parcels are sent back to the French Franc module then.

[0202] will be described after the river flowability.Perhaps, the river flowability reaches in covering knot the inside effectively by the enforcement of using effective MG.At an example, MG wishes to its registration at other covering knots of covering knot the inside registration.If the additional interface of the knot of any registration (adport) changes, perhaps it signal to that change of its MG, expresses conversely that is tied near that change of tying all.

[0203] at some example, because MOSTNET upgrades, perhaps knot needs to set up new registration procedure and new MG, and ties near new cover is arranged, in the middle of the river meeting.In such case, perhaps river ties use on the MTM hands off way that details is described from experienced new MG with near being delivered to new cover always.

[0204] as mentioned above, the present invention may provide a kind of lightweight, and is scalable, and unified selection or answer are given connectedness and quality problems and MIP and many other benefits of IMS/SIP and can be appreciated skillfully at art by the people.

[0205] be described when relevant with various examples when invention, those technology skilful persons think and various variations and change and perhaps do need not to leave the spirit and scope of invention as being defined within by in the requirement of apposition.

Claims (82)

1. a system comprises:

First logic door combines at least, and first feeds network;

Second logic door is combined to feed network at least the second, first and next logic door pass on the 3rd network;

Source end combines first and feeds communicating by letter of network and first logic door; And

Terminal in conjunction with second feed network with second logic door communicate by letter;

Its first and second door transferring datas wrap between source end and the terminal, and its first and second doors further be that source end and terminal switch state information are in order to the general connectedness between maintenance source end and the terminal.

2. the system as claimed in claim 1, its state information is included as the IP address-port transition information of at least one source end and terminal.

3. the system as claimed in claim 1, its each packet comprise that a real head comprises specific-Jie district information.

4. system as claimed in claim 3, its real head comprises that further is the universal unique identifier and a relevant destination information with terminal of source end.

5. the system as claimed in claim 1, its source end be assigned with a local ip address and an ad hoc network join dependency and openly can and the IP address, its openly can and IP address be can be used to be connected to the end of external network and with it to source end location with transmit.

6. the system as claimed in claim 1, its source end to the 3rd logic door registration, and are set up communicating route after being connected to a new network.

7. system as claimed in claim 6, agent's door that the 3rd logic door of itself and upstream is relevant sends signals to other doors should three logic doors of addressed data package to the rather than first logic door.

8. the system as claimed in claim 1, its each first and second doors are safeguarded a list, this list comprises one group of available feeding network and is connected in the IP address of the end of available feeding network.

9. system as claimed in claim 8, its parcel flow process are split into from the source end, and plurality of secondary is mobile to be moved at available feeding network, and plurality of secondary is reassembled into the parcel flow process before being flowing in incoming terminal.

10. system as claimed in claim 8, its parcel flow process from the source end be replicated with multileaving at available feeding network, and plurality of secondary is flowing in before the incoming terminal and is reassembled into the parcel flow process.

11. the system as claimed in claim 1, its system comprises a plurality of knots, comprises second door and second door, and knot uses signal plan coordination and control data stream to handle.

12. system as claimed in claim 11, its Data Stream Processing comprise that the division original data stream is that a plurality of secondary data stream are across tying also addressing dividually to increase the high efficiency purposes to the network bandwidth.

13. a method comprises:

Register a source end and combine first feeding network at least with first logic door;

Register a terminal and combine at least the second feeding network with second logic door, its first and second logics door is passed on the 3rd network;

Transferring data wraps in and uses aforementioned first and second doors between source end and the terminal respectively; And

Exchange state information, between first and second doors, relevant with state information for source end and terminal in order to safeguard the general connectedness between source end and the terminal.

14. method as claimed in claim 13 also comprises:

The real head that comprises a specific-Jie district information is at each packet.

15. method requires 14, also comprises:

Comprise that universal unique identifier of establishing for source end destination information relevant with terminal is in real head.

16. method as claimed in claim 13 also comprises:

The ad hoc network join dependency that distributes a local ip address and source end; And

Distribute an IP address that openly can reach to the source end, the IP address that the disclosure can reach can be used to be connected to the end of external network and be sent to the source end.

17. method as claimed in claim 13 also comprises:

End to the three logic doors in registration source are after being connected to a new network; And

Set up communicating route between the 3rd logic door and source end.

Signal, by the agent door of upstream in the 3rd logic door, should three logic doors of addressed data package to the rather than first logic door to other doors.

18. method as claimed in claim 13 also comprises:

Safeguarding, is that terminal is combined to available feeding network by each first and second door, available feeding network list and IP address.

19. method as claimed in claim 18 also comprises:

The division parcel flows into the secondary mobile travelling of plural number at available feeding network from aforementioned source end; And

Reassembled the secondary parcel flow process that flows of plural number before incoming terminal.

20. method as claimed in claim 18 also comprises:

Duplicating parcel flows from aforementioned source end;

The parcel that multileaving is replicated covers available feeding network;

Reassemble secondary the flowing of plural number into the parcel flow process, before incoming terminal.

21. method as claimed in claim 13 also comprises:

Use the signal plan,, comprise first and second door, coordinate and the processing of control data stream by a plurality of knots.

22. method as claimed in claim 21 also comprises:

Dividing original data flow becomes secondary data stream across aforementioned a plurality of addressing dividually of knot to increase the high efficiency purposes to the network bandwidth.

23. a network node is handled parcel, this parcel comprises mobile to (MTM) head and the IP head of flowing, and network node comprises:

First module adaptive is handled the MTM head of parcel, and the MTM head comprises at least one come source flow terminal iidentification (MTID) field and MTID field, destination;

Second module adaptive handled the IP head of parcel; And

Socket adaptation and parcel and the contact of another network node.

24. network node as claimed in claim 23, its first module is carried out data packet communication at protocol layer and is located between the 4th number of plies of second number of plies and osi model.

25. network node as claimed in claim 23, its MTID field, source comprise a MTID be source end and MTID field, destination network node to comprise the 2nd MTID be terminal, MTID is a global identifier.

26. network node as claimed in claim 23, its MTM add the field that further comprises an address style identification and be used for parcel first watch.

27. network node as claimed in claim 26, its address style are an IP address and/or MTID address.

28. network node as claimed in claim 23, its IP add the base identification (BSID) that further comprises a base that shows that parcel will be write instructions and transfer first watch.

29. network node as claimed in claim 23, its MTM head are implemented as IP and select.

30. network node as claimed in claim 23, its MTM head is separated to be embodied as the head of the number of plies 3.5.

31. network node as claimed in claim 23 also comprises:

The 3rd module adaptive built parcel,

Its first module comprises that a module of adaptation introduces the MTM head and give parcel;

Second module comprises that a module of adaptation introduces the IP head and give parcel, and the IP head specifies the parcel that will be paid to door; And

Socket further adapts to the transfer parcel to door.

32. network node requires 31, also comprises:

The IP address that one storage is adapted to deposit door,

Its socket further adapts to registration that to shift a request package be network node and receives the answer parcel from door, replys the IP address that parcel comprises door;

First module more further comprises that in storage a module of adaptation is from IP address of replying parcel extraction door and the IP address of depositing door; And

Second module more further comprises the IP address and the IP head built according to the IP address of door of a module of adaptation from storage retrieval door.

33. network node as claimed in claim 23,

Its socket further adapts to the parcel of receiving common formation parcel flow process, each demoulding sequence numeral of parcel delivery and

First module more further comprises the parcel flow process of the anti-demoulding module assembling of adaptation according to demoulding sequence numeral.

34. network node as claimed in claim 23,

Its socket further adapts to one or more multileaving variable of accepting parcel; And

First module comprises that module collapse multileaving variable of adaptation goes into parcel.

35. network node as claimed in claim 23,

Its socket further adapts to receives parcel from the source end;

First module comprises that a module adaptive is right, if the MTM head of parcel comprises MTID field, destination, solves in the destination that MTID field, destination MTID comprises and arrives one or more IP address; And

Socket further adapts to one or more network node that the transfer parcel is determined to one or more IP address.

36. network node as claimed in claim 35 also comprises:

Second module comprises that at one or more copy of parcel a module of adaptation makees one or more copy parcel and write one or more IP address.

37. network node as claimed in claim 35, its one or more IP address comprise one of the terminal point network knot determined the destination openly can and IP (PRIP) address MTID and the PRIP address foretold of the quilt of a cover terminal point network knot.

38. network node as claimed in claim 35,

Its one or more IP address comprises one or more LIP (local IP) address MTID of the terminal that the destination is determined; And

Socket further adapts to and shifts parcel one or more feeds network to the terminal transition, and it is relevant with one or more feeding network that terminal is assigned with one or more LIP address.

39. network node as claimed in claim 38,

Its parcel forms the parcel flow process jointly;

Network node more further comprises the demoulding module of adaptation and introduces demoulding sequence numeral to parcel, and it is secondary mobile to one or more bag to have divided the parcel flow process; And

Socket further adapts to the secondary bag dividually of transfer and is flowing in one or more feeding network to terminal.

40. network node as claimed in claim 39, its demoulding module comprises:

Module adaptive one or more link of estimated bandwidth and/or person postpone accesses network; And

Module adaptive division parcel flow process secondary bag in one or more flows and postpones accesses network based on one or more link of the bandwidth of estimating and/or person.

41. network node as claimed in claim 38 also comprises:

The module adaptive conversion of a conversion is bundled into one or more multileaving variable for a short time,

One or more multileaving variable is shifted in the further adaptation of socket dividually, and one or more feeds network to terminal.

42. network node as claimed in claim 35 also comprises:

One module adaptive determines whether parcel is doomed to the terminal that does not register to network node;

One intermediate conversion module adaptive buffering parcel is doomed to the terminal that does not register to network node if it is determined parcel; And

One investigation unit adapts to being registered to network node or being registered to another network node of the terminal find terminal,

Its buffer unit further adapts to the parcel of passing on buffering and gives terminal, when terminal be registered to that network node is found and when transmitting the parcel of buffering to another network node, when the registration of terminal is found another network node.

43. network node as claimed in claim 42, its network node also comprises:

The LIP address of one module adaptive distributing terminals before the registration of terminal; And

When terminal be registered to network node when being found, module adaptive passes on the LIP address of distributing to give terminal.

44. network node as claimed in claim 35 also comprises:

One resolution module adaptive determines whether parcel comprises a MTM signal message; And

A processing module has adapted to, and comprises a MTM signal message if it is determined parcel, at the Processing tasks of MTM signal message indication.

45. network node as claimed in claim 44, its door more further comprises:

The storage of one association adapts to safeguards the tuple of LIP (local IP) address, MTID and PRIP address.

46. network node as claimed in claim 44,

The MTM of its parcel add first watch signal further comprising the type of recognizing parcel or data code field and

Its resolution module determines whether parcel comprises the MTM signal message according to signal or data code field.

47. network node as claimed in claim 46, its processing module is right in association's storage configuration, comprise first that request message is the registration of terminal if it is determined parcel, extract the LIP address of terminal and with the LIP address of the MTID registered terminal of terminal and the PRIP address of terminal from parcel.

48. network node as claimed in claim 47 also comprises:

One module adaptive is right, to respond the registration of terminal, sends signals to one or more other network node addressing parcels and is doomed to the terminal to network node.

49. network node as claimed in claim 46, its processing module comprises:

One module adaptive exists, and comprises under the condition of resolution that message first is MTID if it is determined parcel, extracts MTID from parcel;

The module adaptive of a solution solves MTID to PRIP address; And

A module adaptive is built the answer parcel, replys parcel and comprises the PRIP address.

50. network node as claimed in claim 49 also comprises:

One buffer adapts to deposits mapping MTID and PRIP address,

The module of its solution comprises:

One module adaptive search buffer for MTID;

One module adaptive search the association storage of MTID; And

One module adaptive pass-along message is that one or more other network nodes are arrived in the resolution of MTID.

51. network node as claimed in claim 50 also comprises:

One module adaptive after message is received during from another network node, extracts the PRIP address of MTID and terminal from parcel; And

One module adapts to the PRIP address of registration MTID and terminal at buffer.

52. network node as claimed in claim 51, the PRIP address delivery of its terminal is in the source IP field of the IP of parcel head.

53. network node as claimed in claim 35 also comprises:

One storage adapts to the tuple of safeguarding connection identifier (CID, an original interface and a new interface;

One module parcel adapted to obtain one the source port number;

One module adaptive retrieval comprises the identical tuple with the source port number of new interface; And

One module adapts to original interface in the tuple that is retrieved at parcel replaces the source port number.

54. network node as claimed in claim 23 also comprises:

One storage adapt to safeguard and to be mapped between meeting tuple and the original meeting tuple,

Its socket further adapts to receives parcel from another network node;

First module comprises that at parcel a module adaptive has delivered parcel to the storage of searching the meeting tuple, and replaces the meeting tuple with mapped original meeting tuple.

55. network node as claimed in claim 23,

Its IP head comprise source address and port number and destination address and port number and

Network node more further comprises:

Another network node that one module adaptive identification parcel will be write instructions and transfer;

One forward unit adapt to source address and the port number of replacing network node with the address, and replace the destination address and the port number of another network node with the address.

56. network node as claimed in claim 55,

Its parcel form jointly river and

Network node more further comprises:

One river seperator adapts to the division river and becomes one or more secondary data stream; And

One identifier task unit adapts to universal unique identifier of distribution to each bar secondary data stream.

57. network node as claimed in claim 55,

Its parcel forms river jointly, is split into one or more secondary data stream; And

Socket adapt to from another network node accept one or more following one by one secondary data stream and

Network node more further comprises:

One river recombiner adapts in conjunction with following one by one secondary data stream formation river.

58. network node as claimed in claim 56

Its parcel form jointly river and

Network node more further comprises:

One storage adapts to deposits river; And

The one river unit of carrying over adapts to the river that littler packetize (packetize) is stored, and seems an original person of issuing an order of network node river.

59. a communication means based on parcel comprises:

Build a parcel;

Introduce a MTM head and give parcel, the MTM head is specified a final destination of parcel;

Introduce an IP head and give parcel, the IP head specifies the parcel that will be paid to a door; And

Shift parcel to door.

60. method as claimed in claim 59,

Its parcel form jointly the parcel flow process and

Method also comprises:

Introduce a demoulding sequence numeral to parcel;

The division parcel flows into one or more secondary flowing; And

Shift secondary being flowing in dividually and one or morely each and every one feed network.

61. method as claimed in claim 60, the operation of its division comprises:

Estimated bandwidth and one or more each and every one link postpone accesses network; And

Division parcel flow process to one or more in each and every one secondary flowing postpone accesses network based on one or more link of the bandwidth of estimating and/or person.

62. method as claimed in claim 59 also comprises:

Shift a request package to a door and be registration;

Receive that one replys parcel from door, reply the IP address that parcel comprises door;

The IP address of extracting door is from replying parcel;

Deposit the IP address of door;

Introducing an IP head comprises for the operation in little packet header:

Build IP head according to the IP address that is stored of door.

63. a communication means based on parcel comprises:

Receive a parcel, parcel comprises a final destination information of parcel;

The information that solves the final destination is to one or more IP address; And

Shift one or more network node that parcel is determined to one or more IP address.

64., also comprise as the described method of claim 63:

Receive a register requirement bag from an end, the register requirement bag comprises a LIP (local IP) address of terminal;

The LIP address of extracting terminal is from parcel;

Obtaining flow terminal iidentification (MTID) and IP (PRIP) address that openly can reach is terminal; And

Safeguard that a tuple comprises the PRIP address of LIP address, MTID and terminal.

65. as the described method of claim 63,

The information of its final destination be destination MTID and

The operation that solves the information of final destination comprises to one or more IP address:

The mapping of safeguarding at a local memory is carried out and is searched MTIDs and IP address search one or more IP address corresponding to destination MTID; And

Break down if search, inquire that one or more other MGs are one or more IP address corresponding to destination MTID.

66., also comprise as the described method of claim 65:

Receive that one replys message from one or more other MGs, answer message comprises one or more IP address corresponding to destination MTID; And

Deposit one or more IP address and destination MTID at local memory.

67. as the described method of claim 65, other MGs of the operation of one or more of its inquiry comprise:

Pass on an apply for information to comprise rise a PRIP address of terminal of MTID and parcel for one or more other MGs, apply for information; And

The PRIP address of depositing MTID and terminal is at one or more other MGs of a local memory.

68. as the described method of claim 63,

Its parcel form jointly the parcel flow process and

Method also comprises:

Introduce a demoulding sequence numeral to parcel;

The division parcel flows into one or more secondary flowing; And

Shift secondary one or more transmission road that is flowing in dividually.

69. as the described method of claim 68, the operation of division comprises:

Estimated bandwidth and one or more link postpone accesses network; And

Division parcel flow process is secondary flowing based on one or more the bandwidth and the link delayed delivery road of estimation in one or more.

70., also comprise as the described method of claim 63:

Conversion is bundled into one or more multileaving variable for a short time; And

One or more sends road to shift one or more multileaving variable transition dividually.

71. as the described method of claim 63,

Its parcel comprise a destination address and port number and

Method more further comprises:

The identification parcel is with the network node of writing instructions and transfer;

Replace destination address and the port number address and the port number of network node.

72. as the described method of claim 71,

Its parcel form jointly river and

Method more further comprises:

The division river is in one or more secondary data stream;

Distribute a universal unique identifier to each bar secondary data stream; And

Separately secondary data stream sends road at one or more forward.

73. as the described method of claim 71,

The common river that forms of its parcel is split into one or more secondary data stream, and secondary data stream comprises universal unique identifier identification secondary data stream; And

Method further comprises:

Accept one or more following one by one secondary data stream; And

In conjunction with the river of following one by one secondary data stream formation according to universal unique identifier.

74. as the described method of claim 63,

Its parcel comprise one the source port number field and

Method also comprises:

The tuple of safeguarding, each tuple comprises a Session ID, an original port number and a new port number;

Search the new port number of tuple in port number field, source, wherein identical with value; And

If the port number that tuple is new is identical found in port number field, source with value wherein, rewrite original port number in port number field, the source of parcel in tuple.

75. as the described method of claim 74, the operation of the tuple of maintenance comprises:

The parcel of receiving a vacation comprises Session ID and source port number;

Search the tuple Session ID, wherein the Session ID with the parcel of vacation is identical;

If the tuple Session ID is identical found with the Session ID of the parcel of vacation wherein, upgrade the source port number of the new port number of tuple with the parcel of vacation; And

If the tuple Session ID is identical not have foundly with the Session ID of the parcel of vacation wherein, create a new tuple according to the source port number of Session ID and false parcel.

76. a method comprises:

Accept a signal from first door, losing of signal indicating terminal is connected to first door;

Reaction to the receipt of signal cushions a parcel and is doomed to terminal at one second door;

Find one of terminal and be registered to second door; And

At second door that be reacted to, pass on the parcel of buffering to give terminal from second door to the investigation of the registration of terminal.

77. method as claimed in claim 7, its second door are same or different and first door.

78. method as claimed in claim 7 also comprises:

Accept one second signal from the 3rd door, second signal indicating terminal be registered to the 3rd door;

In the reaction to the receipt of second signal, the parcel of casting buffering is at second door.

79. one deposits an executable computer-readable (computer-readable) medium method of execution that is designated as of computer as being recited in any one 13 to 78 claim.

80. a protocol layer architecture comprises:

One relates to the MTM protocol layer of the MTM head of parcel, and the MTM head comprises the MTID field, a destination of a final destination of specifying parcel; And

One network layer is positioned in the MTM number of plies and relates under the IP head of a parcel, and the IP head comprises the field, IP address, a destination of the next network node that the appointment parcel will be paid.

81. a MTM agreement parcel comprises:

One MTM head comprises that at least one universal unique identifier is a network node, and universal unique identifier does not keep with changing, has both made when network node moves to another from the feeding network and has fed network; And

One IP head comprises field, IP address, destination, is worth at destination IP address field to change, when parcel moves during along the route road.

82. required 81 as reciting at carrier wave and the computer data signal of representing MTM agreement parcel to realize.

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