CN1336055A - Distributed local and wide area network independent of connection media supported in networked devices, and managed by the networked device - Google Patents

Distributed local and wide area network independent of connection media supported in networked devices, and managed by the networked device Download PDF

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CN1336055A
CN1336055A CN00801402A CN00801402A CN1336055A CN 1336055 A CN1336055 A CN 1336055A CN 00801402 A CN00801402 A CN 00801402A CN 00801402 A CN00801402 A CN 00801402A CN 1336055 A CN1336055 A CN 1336055A
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station
data
layer protocol
network
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CN1272934C (en
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I·多德
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Pendragon wireless limited liability company
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Koninklijke Philips Electronics NV
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/323—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the physical layer [OSI layer 1]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2805—Home Audio Video Interoperability [HAVI] networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2807—Exchanging configuration information on appliance services in a home automation network
    • H04L12/2814—Exchanging control software or macros for controlling appliance services in a home automation network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2838—Distribution of signals within a home automation network, e.g. involving splitting/multiplexing signals to/from different paths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L2012/284—Home automation networks characterised by the type of medium used
    • H04L2012/2841—Wireless
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/51—Discovery or management thereof, e.g. service location protocol [SLP] or web services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08—Upper layer protocols
    • H04W80/12—Application layer protocols, e.g. WAP [Wireless Application Protocol]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/02—Inter-networking arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
  • Small-Scale Networks (AREA)

Abstract

A dynamically configurable network has data stations and wireless protocol stations. A wireless protocol station and at least one data station form a local area network. Separate local area networks are connected to each other through wireless protocol stations. The wireless protocol stations and the data stations have a physical layer protocol that sits in a physical layer, whereby the wireless protocol station has all physical layer protocols of data stations to which it currently connected to, so as to dynamically support various media. The wireless protocol stations and the data stations further have service application layer protocols that sit in service layers, and a service access point protocol in between the service layer and the physical layer. A service application layer of a data station provides a data service. Data between data stations or between a data station and a wireless protocol station are physically exchanged via a communication link using the physical layer protocol. The data service is accessed through the service access point protocol.

Description

Be independent of by networked devices and supported and the distributed local and the wide area network of the connection medium managed by networked devices
The application requires the U.S. Provisional Application No.60/133 of submission on May 13rd, 1999,901 interests.
The present invention relates to the local area network (LAN) and the wide area network of networked devices.More particularly, the present invention relates in a mobile environment, provide the data set of data service as networked devices.
The traditional design structure of mobile phone provides a small sized product easily that is fit to very much voice communication for the user.But, such traditional design structure has shown some restrictions.This project organization seals.At initial purchase the time a little later after mobile phone, upgrading, application or auxiliary product can not be increased easily.For new generation product, new business can often occur.Mobile phone manufacturer can't design in advance for these business, and the increase of new business means the redesign of product.Consequently the expected endurance of product will significantly reduce.All phone application must be used identical size-constrained display, and common keyboard.If domestic consumer's interface is used, then display can require a bigger product, and will suppose that all users are the people who understands computer.This method is expensive, and is effectively for high-grade product only, can only cater to the limited part needs in consumer market.And user interface is integrated in the telephony product, and generator is used to visit and drive all data available application.Then along with the increase of the data function of predicting, the increase that this will cause the user interface complexity makes it reduce user friendly.The pressure that reduces product size and display sizes that manufacturer bears mixes with it.Ergonomics also is difficult to be fit to the expansion of upcoming data service.Can easier outstanding this point with an example.In a mobile phone dialogue, a square tube is crossed one of Email transmission and is reported to the opposing party.Both sides are discussing this report and are wanting to see it when they talk.In order to see or to edit this report, each side all must the handheld machine from removing in one's ear, and dialogue has just been interrupted.If this product has speaker phone functionality, then dialogue just can continue, but has reduced privacy.There are many data that have different ergonomicss to require to use.The requirement of the requirement of comparative example such as portable visible meeting product and a round-the-clock motion head phone communicator.The latter does not have the position of large display screen.
Be bordering on mobile telephone system, the high-end user network system is arranged.These high-end network systems provide the Distributed Calculation business, and the promising required business of this business provides the common hardware compatibility and the what is called " plug and play " of the automatic configuration of software driver.When but these systems become the time spent, the user can be connected on the required business by " insertion " simply.
Predicted data communication can obtain more multiple looking in mobile environment.Mobile phone itself can be counted as one professional device is provided in the moving distributing computing network in logic, the business that the user must easily visit this distributed network and provided.If this mobile network also can interact with the current fixedly private network of developing, then the utilance of mobile phone will improve in the Inner portion environment.Consider that with mobile phone the relevant fixed network system that is developing is as follows:
This system of HAVI-provides the consumer electronic products of visit home network.The home network utilized bandwidth is IEEE 1394 STD bus of 400Mbps.
This is based on the communication layers of JAVA JINI-.JINI requires to have big disposal ability, fast storage and the high network bandwidth (being approximately 100Mbps).Have it is merged so that the plan of relevant fixed-line subscriber product network to be provided with HAVI.
This is that a bandwidth that is suitable for fixed LAN is the plug and play bus system of 12Mbps for USB-.Be connected in the standard to the hardware of this bus and be defined.
The target of these fixed networks is relatively costly networks of high bandwidth.The mobile phone environment has following difference basically:
Maximum available bandwidth generally is approximately 2Mbps, and relies on user's mobility and change.
Because the user is necessary for all data that are transmitted aloft and pays, so the transmission of network configuration data must be limited.So just there is one by mobile communication environment applied, all fixed networks all do not have restriction.The device number that is connected to the mobile network in any one time is little.Expense and the size so restricted JAVA virtual machine that makes all are disabled for most of devices, particularly phone itself.
Mobile network's useful life is short.The covering in vast zone is confined to the calling phase.Network is configured to will be fit to during by demand whenever it user's demand.
Current have be used to provide the far-end wireless point-to-point in the various developments, and the scheme that connects to multiple spot of point.Especially, bluetooth, HomeRF and IrDA technology are studied for the mobile phone product.
An object of the present invention is to provide a novel structure of a distributed local and wide area mobile network.
Another object of the present invention provides a mobile network who in fact manages, do not need a centralization server or service supplier to support by networked devices.
A further object of the present invention provides a mobile device among the mobile network, and the purchase of these devices and operation are all very cheap, and bandwidth is limited, and mobile network's expense just can not have high requirements to memory and bandwidth like this.
A further object of the invention is to provide the functional module degree in a mobile network.
Another object of the present invention provides a professional and new data service of available data therein can be by the network configuration of upgrading at an easy rate or adding.
According to the present invention, a dynamic configurable network is provided, and it comprises:
Comprise the first service application layer protocol that first data service is provided and first data station of first physical layer protocol;
The first wireless protocols station that comprises the second service application layer protocol, this first wireless protocols station is configured to utilize above-mentioned first physical layer protocol by first communication link and above-mentioned first data station swap data physically, and be configured to utilize the Operational Visit point agreement that is comprised in above-mentioned first data station and the first wireless protocols station to visit above-mentioned first data service by a peer-to-peer communications, in above-mentioned first data station, above-mentioned Operational Visit point agreement is configured to transmit data between above-mentioned first service application layer protocol and above-mentioned first physical layer protocol, and in the above-mentioned first wireless protocols station, above-mentioned Operational Visit point agreement is configured to transmit data between above-mentioned second service application layer protocol and above-mentioned first physical layer protocol
Above-mentioned first data station and the above-mentioned first wireless protocols station have constituted first LAN node in the above-mentioned dynamic configurable network.
The present invention is based on following understanding: by an Operational Visit point agreement that is contained in data and the agreement station, in the layer between a service application layer and physical layer, standing can be added on a node or a plurality of node, and Inner is easier during user's request disposes or dispose automatically variable-sized network by the user thereby make.
Best, network comprises one second wireless protocols station in one second LAN node, thereby the conceptual expansion of a dynamic configurable local area network (LAN) is the notion of dynamic configurable wide area network that comprises the local area network (LAN) of some mutual links.
Best, controller station in the network, promptly operate based on the catalogue of direct or indirect network node that comprises dynamic generation and station address as the station of a current data service request part, with support to have minimum control and route data expense directly and transmission indirectly.Utilize indirectly and transmit, intermediate station upgrades the middle destination at next station based on the directory entry of node that comprises next station and station address.
Best, the catalogue of the Inner that stands is used to find that by one the node at the station found recently and the station scanning process of station address upgrade.
Fig. 1 represents according to a local area network (LAN) of the present invention.
Fig. 2 represents according to a wide area network of the present invention.
Fig. 3 represents that another wide area network according to the present invention represents.
Fig. 4 represents by a MADI Operational Visit point accesses network business.
Fig. 5 is illustrated in the interaction at a station in the MADI LAN node.
Fig. 6 is illustrated in the agreement station in the node of MADI-WAN of an interconnectivity that external node is provided.
Fig. 7 has represented the location of the protocol layer among the MADI-WAN.
The internodal data that Fig. 8 is illustrated in a MADI-WAN transmit.
Fig. 9 represents that a father transmits the structure of grouping.
Figure 10 is illustrated in first node the transmission grouping from PDA to mobile phone.
Figure 11 represents the transmission grouping from the mobile phone of mobile phone to the second node of first node.
Figure 12 represents the transmission grouping from the PDA of mobile phone to the second node of second node.
Figure 13 represents the professional station of in MADI service lists record.
Figure 14 represents the overall structure of a MADI service lists.
Figure 15 represents that sends and receive a professional structure that transmits interface.
Figure 16 represents the business datum encapsulation.
Figure 17 represents a catalogue record form in the MADI controller.
Figure 18 represents a whole bibliographic structure.
Figure 19 represents the directory content of the catalogue record in a plurality of MADI controllers.
Figure 20 represents a MADI-SAP software configuration.
Figure 21 represents the MADI transfer management.
Figure 22 represents that a MADI transmits buffer structure.
Figure 23 represents to utilize the fixed network of MADI to move.
Identical Ref. No. is used to identical feature in all figure.
As what hereinafter will describe in detail, the present invention provides the interoperability (MADI) of mobile servicing unit widely, and provides a structure to interact in the wide area network of a local area network (LAN) that comprises a plurality of interconnection to allow mobile phone and peripheral unit thereof.
Fig. 1 represents according to a local area network (LAN) 1 of the present invention, a MADI local area network (LAN), it comprises an agreement station 2 (PS) and relevant data station (DS) device: 4, one Music centers 5 of 3, one television sets of a printer, a personal computer 6 as the fixed data station, and 8, one music players 9 of 7, one cameras of a wrist-watch, people numeral assistant 10 and a telephone headset 11 one by one as the radio data station.Agreement station 2 can provide the two-way airlink of a BTS service to Cellular Networks (not marking in detail) here, and can only provide the function of having only sound for the user by a simple numerical keyboard in a kind of stand-alone capability.This stand-alone capability is well-known in field of cellular telephony.Data service for the user in the MADI agreement station 2 can be and be normally transparent.In this respect, agreement station 2 provides the transparent data pipeline of gateway of the data service of DS device 3 to 11.Usually, all data are used all serviced to 11 by auxiliary DS device 3.DS device 3 to 11 has the user interface that just in time is fit to their particular tasks.The diversity of DS device 3 to 11 provides selection to user interface for the user.For example, if a data station device is used to carry out a speaker-phone voice communication, then powerful PS transmitter for example just can be in away from user's ear in a shoulder bag or the suitcase always.In the data station device 3 to 11 some can be designed to the special internet data business of specific use, for example the portable music player from Internet service " record " audio track.This MADI structure is open and does not need that substantial change is done at agreement station 2 and just can add new business and data station product at an easy rate.
Data station device 3 to 11 is configured to communicate by letter with agreement station 2 to form local area network (LAN) 1 by the Standardization Communication link.Physical interface in the local area network (LAN) can comprise multiple various criterion, for example to the Bluetooth RF link of wearing electrophone 11, or the IRDA connection of arriving printer 3.Owing to can communicate by letter with another PS in the agreement station 2 in the local area network (LAN) 1, and the latter and then can support its local area network (LAN), so this notion can be extended to a wide area network, any therein data station device can be connected to any another one data station device by the service of moving.
Fig. 2 represents the expression according to such wide area network of the present invention, a MADI wide area network, and Fig. 3 represents another expression of MADI wide area network.
System shown in Figure 2 is, local data station (LDS) 21,22 and 23 is arranged in a local network 20, and a native protocol station (LPS) 24, and, a remote protocol station (RPS) 26 is arranged in the far-end net 25 of local network 20 far-ends, and remote- data station 27,28 and 29.In this system, all devices can be visited and can be counted as the MADI that is shown by another expression institute summary among Fig. 3 mutually and net the device that is connected.To communicate by letter with a remote-data station in the far-end net 25 for a local data station in the local network 20, the continuous path of this communication is as follows: a local LDS communicates by letter with a local LPS, this this locality LPS communicates by letter with a far-end RPS, and this far-end RPS communicates by letter with a far-end RDS.Therefore can see that the message route need of MADI network 30 is specific to mobile environment.The original characteristic of mobile product is exactly mobile everywhere.Visit for external device (ED) is temporary transient.This means that MADI network 30 must carry out dynamic-configuration at every turn when being required.A LDS user does not ask to visit another LDS device when probably having PS in local area network (LAN) yet.For example a local personal digital assistant's user may want to print an agenda on a playscript with stage directions ground printer.Certainly do not need a PS in this case.Importantly the MADI system is simple as far as possible and flexible.
Network need by with the effective and efficient manner utilization and must provide one the visit desired device simple means.Array apparatus is provided down for this: control when coordinating several units, communicating control information (table apparatus sends an order to other device) and data Inner hold (table apparatus sends a data flow to other device) timely and effectively, and be suitable for one of user's specific needs exactly in time, the ease of user of size network just in time disposes.Because network design for portable product, thus energy, memory spending, and the expense that far-end network transmits is minimized.In addition, network still is self-administered, and the multiple arrangement access protocal is supported, and new device access protocal can easily be added, and is provided to the interface of other fixed-line subscriber net.
For these business are provided, need a network management system, i.e. MADI system.
According to MADI of the present invention system, a network management system can be counted as a Distributed Calculation platform, and the main target of MADI system be guarantee product can interoperability to carry out application task.In order to be simplified to the general-purpose interface of MADI network, this organization definition one group of API (API).Hereinafter will describe in detail, the MADI structure is a kind of open, light, not platform dependent and structure on uncertain standard, it provides timely route and the processing of fabric with control data, support those not support the conventional apparatus of MADI structure, by supporting following device based on the mechanism of software, allow device to represent a plurality of user interfaces, the needs of suitable user's the needs and the different brands of manufacturer, and make the peer-to-peer communications transparent data transmission easier to support that for example those are used in higher layer network system and communication protocol in the fixed network system (as JINI).
The device Inner that the business that is provided in the MADI system is distributed on the network to be connected.But move and can know the interface accessing of definition under the professional execution environment in a table apparatus by a quilt.It should be noted that in this respect different device uses different execution environments.These business are on the peer-to-peer communications layer that the MADI system provides.MADI layer according to the present invention is provided at the data exchange mechanism between these Business Entities and the device of specified data exchange tissue is provided.The regulation of business interface and MADI are irrelevant.Business can be provided by device manufacturer, perhaps can be added (as the new manufacturer that is added on manufacturer's device uses) by the business of third party manufacturer.Professional asked by a MADI message TRANSFER MODEL and provided, it provide one enough flexibly, complete general software model is so that allow to have the multiple realization of various software system and language.
Fig. 4 has illustrated by a MADI Operational Visit and has put 40 accesses network business.SAP40 is present in the station of all compatible MADI, and promptly in data station device and agreement station, and it provides the layer of the peer-to-peer communications between Business Entity.Fig. 4 has provided an operation layer 41.
Fig. 5 has provided the interaction between station in the MADI LAN node (node 0) 50.Node 50 comprises data station (DS) 51 and 52, and an agreement station (PS) 53.51 to the 53 all with good grounds MADI layers of the present invention of standing.
Fig. 6 has provided the agreement station 53 in the node 50 of MADI-WAN (wide area network) of the interconnection that is provided to external node 60 and 70 (node 1 and node n).External node 60 comprises data station 61 and 62, and agreement station 63.External node 70 comprises data station 71 and 72, and agreement station 73.MADI-WAN (wide area network) comprises a plurality of LAN node by the interconnection of agreement station.A kind of MADI Operational Visit point that Fig. 4 provides makes among the MADI-WAN distribution of the business that each station provides to all other stations easier.Agreement station 53 is provided to the interconnection of external node 60 and 70.Fig. 6 has provided all possible interconnection path.Station or controller station or controlled station during a MADI nets.The controller station is to business of controlled station request or a plurality of business and have the knowledge or the view of this network.The business that all are available is known at the controller station, and the access mechanism that obtains them.Controlled station is as mute station and only respond the instruction of giving it.They do not have the knowledge of network.The transmission that this has reduced the needs that transmit for unnecessary network configuration and has limited directory information.The controller station also can be controlled in other controller station, because they also can provide professional to the MADI net.
Fig. 7 has provided the location of protocol layer among the sort of MADI-WAN shown in Figure 6.Given is the protocol layer storehouse that is used for data station and agreement station.
There is following protocol layer at data or agreement station:
Level physical Media layer 80 to 87-provides the physical interface at other station.To make a selection in the different media interfaces in MADI net 30.Station can visit identify by M1, M2, M3 or M4 such as UMTS, bluetooth, IrDA or other a plurality of media option.Other media option is for example HomeRF or RS232.
MADISAP layer 90 to 97-is on the level physical Media layer 80 to 87, and is provided for the network and the data link layer of MADI communication.MADI SAP layer 90 to 97 is independent of level physical Media layer 80 to 87 basically.The network such as the higher level of JINI also may be supported in some station in the network.In these stations, for example in data station 98 and 99, MADISAP layer 91 and 95 directly is under the higher network layer, and described network layer is corresponding JINI layer 100 and 101 in given example.The station of higher level compatibility during the MADI layer is netted the extension of network of higher level to MADI in this example.
Operation layer 110 to 117-is on MADI SAP layer 90,92 to 94,96 and 97, or depends on the circumstances, on JINI layer 100 and 101.In Fig. 7, data station 98 is in first local area network (LAN) 118, and data station 99 is in second local area network (LAN) 119, and network 118 and 119 is remotely interconnected.
The agreement station comprises the media option of the data station of all their supports, is that M1 is to M4 in the example that provides.Data station have usually fewer media option or even have only a media option.
For the maximum flexibility that concurrent control between network entity and data transmit and provide data to transmit is provided, all networks transmit all be adopt below the transmission block form shown in the Table I.
Packet segmentation Relam identifier Size (byte) Describe
Purpose DNODE destination node identifier 1 Identification packet is with the node that is sent to.Address realm is 0-255.DNODE is assigned with at network time limit Inner, and its scope is overall.
DSTATION point of destination identifier 1 Station in the node that identification packet will be sent to.Address realm is 0-255.DSTATION is assigned with in the time limit at network, and its scope is local for this node.
Data The COMMAND command identifier 1 Stipulate a command instruction.The scope of value is 0-255.The embedded command instruction is supported.For embedded command, order Inner to hold in the INF0 byte that is embedded in subsequently in addition.
ILEN INFO length of field 1 The length in expression INFO territory.Its scope is 0-255.
INFO information N The data Inner of the length of DLEN definition holds.The instruction Inner that attention: INFO comprises for embedded command holds.
Table (continuing)
The source SNODE source node identifier 1 The node that identification packet therefrom sends out.Address realm is 0-255.SNODE is assigned with in the time limit at network, and its scope is overall.
SSTATION source station identifier 1 Station in the node that identification packet therefrom sends out.Address realm is 0-255.SSTATION is assigned with at network time limit Inner, and its scope is local for this node.
Checking The CHKSM verification and 2 The section of all fronts of checking grouping
Table I
As shown in Table I, the transmission grouping comprises some packet section:
A purpose section, it has defined the destination of grouping.The purpose section comprises destination node identifier DNODE and a point of destination identifier DSTATION.
A data segment, it has comprised transmission information.Data segment comprises a command identifier COMMAND, an information field length ILEN, and information INFO.
A source section, it has defined the promoter that grouping transmits.To reply be necessary to this information to helping to carry out one.The source section comprises a source node identifier SNODE and a source station identifier SSTATION.
A detection is owing to the checking section of handling the wrong any packet corruption that causes.Level physical Media layer 80 to 87 under the MADI layer 90 to 97 provides detection and the correction for garble.The checking section comprises verification and CHKSM.
Fig. 8 has provided between the node of MADI-WAN30 and has transmitted grouped data.Given is node 130 and 140 (node 1 and node 2), and for the transfer path of the transmission of Inner portion node or node-to-node or interface A to G.Node 130 comprises data station 131 and 132, and an agreement station 133.Node 140 comprises data station 141 and 142, and agreement station 143.In given example, data station 131 is PDA, and agreement station 133 is mobile phones, and agreement station 143 is mobile phones, and data station 142 is PDA.
Can directly transmit, wherein data are directly sent to the point of destination, for example a transmission on the interface A in Fig. 8.There is the purpose section in DNODE and DSTATION territory to define the purpose recipient of message in the transmission grouping, and has the source section in SNODE and SSTATION territory to define the sender.The sender of a service request preferably transmits in the grouping at each and is identified.Like this, do not need the knowledge of network, just reply and to return by controlled station.Because all groupings that are received have all been identified, so the grouping in the network can be distributed at an easy rate.
For the indirect transmission by other station, for example in the situation about transmitting outside the DS-DS node, the intermediate station of relay for packets does not need to store any message history that transmits for echo reply.Transmitting indirectly is the transmission that sends to the point of destination by intermediate station.Transmit indirectly and comprise a plurality of intermediate transports.For example in Fig. 8, the once transmission from the data station 131 of node 130 to the data station 142 of node 140, it is exactly indirect that the far-end between two personal digital assistants (PDA) transmits, and requires the transmission on interface B, D and G.Alternatively, this indirect transmission also can be carried out with the transmission on interface A, C, D, E and the F.
For all intermediate transports, the transmission grouping all is encapsulated in a father and transmits in the INFO territory of grouping.Father's grouping provides all for finishing the necessary information of timely transmission.Packed grouping comprise in all routes that are determined to the final destination the required information of transfer path of process.
Fig. 9 represents that a father transmits the structure of grouping 150.Grouping 150 comprise to Table I in the similar territory of associated packets described, but final destination information is arranged in father's information field, so that finish intermediate transport between the station with the Overhead of minimum.Carried out to the station 142 of node 140 by station 131 with reference to 8, one direct transmission of figure from node 130.Intermediate transport process interface B, D and G and the order that will send and INFO correspondingly are X and Y.The father sends grouping 150 and comprises father's purpose section, father's data segment, a father source section and father's section of checking.Father's purpose section comprises 152 and father points of destination of father's destination node identifier (PDNODE) identifier 153 (PDSTATION) of the middle destination that has defined the grouping transmission.Father's data segment comprises father's command field 154 (PCOMMAND), and it has defined the intermediate station action and has indicated and how to have explained that being included in the father transmits father's information field length 155 (PILEN) and father's information field 151 (PINFO) in the grouping 150.Father's section of checking comprises father's verification and 156 (PCHKSM).Father source section comprises a father's source node identifier 157 (PSNODE) and a father source station identifier 158 (PSSTATION).From an initial father source station to the intermediate packets conveyer chain at final purpose station, intermediate station becomes father station and corresponding renewal encapsulation territory, is finished with minimal-overhead so that grouping transmits.Father's information field 151 (PINFO) comprises a final purpose node address 160 (DNODE), a final purpose station address 161 (DSTATION), one has defined the action at final purpose station and has indicated command field 162 (COMMAND) how to explain the information field of following, a message length territory 163 (ILEN), a final destination data field 164 (INFO) is used for an original source node address territory 165 (SNODE) and a source station address 166 (SSTATION) that transfer path is selected in the echo reply route.
For direct transmission, or the indirect transmission of node Inner, reply transmission for one and returned from each receiving station.If an indirect transmission is crossed a node boundary and is performed, then reply and handled with regard to difference.In distant-end node, all are replied answer and are all accumulated in the remote protocol station 143 of link between Maintenance Point.When this activity was done, by receiving a final ACK or a wrong ACK, remote protocol station 143 sent one and replys and report to native protocol station 133, then 133 with its transmission to initial data station 131.If finally do not reply and be received for one, then Ji Lei knowledge is the source of the correct orientation problem of user.
Figure 10 is illustrated in the node 130,133 transmission grouping 170 from PDA131 to the mobile phone.For the grouping in all whole group chains from PDA131 to PDA142, the content of father's information field 151 all is identical, i.e. the order X of final purpose ground node/station address 140/142, final purpose address 140/142, length information territory 163, a purpose information field 164 (Y) and a start node/station address 130/131.Length information territory 163 has defined the length of purpose information field 164.Because father's grouping information has encapsulated father's information field 151,170 contain protocols having station 130/133 (the intermediate station destination node/address of the mobile phone 133 in the node 130) so divide into groups, and the source node/station address 130/131 of initial PDA131 in the node 130, and to comprise indication mobile phone 133 these information be not predetermined to it but this grouping should be sent to the father at another station orders " NETWORK_RQST_INDIRECT_SEND ".
Figure 11 represents the transmission grouping 171 of the mobile phone 143 in 133 to second nodes 140 of mobile phone from node.Because father's grouping information has encapsulated identical father's information field 151,171 contain protocols having station 140/143 (the intermediate station destination node/address of the mobile phone 143 in the node 140) so divide into groups, and the source node/station address 130/133 of middle mobile phone 133 in the node 130, be used to refer to mobile phone 143 these information in addition and be not predetermined to it but this grouping should be sent to the father at another station orders " NETWORK_RQST_INDIRECT_SEND ".
The transmission grouping 172 of PDA142 Figure 12 has provided from the mobile phone 143 of node 140 to node 140.Because father's grouping information has encapsulated identical father's information field 151,172 contain data station 140/142 (destination node/address of the Final Station of the PDA142 in the node 140) so divide into groups, and the source node/station address 140/143 of the middle mobile phone 143 in the node 140, being used to refer to this information of PDA142 in addition is predetermined father's order " NETWORK_RQST_INDIRECT_DELIVERY " to it.
An API (API) be provided in case make MADISAP with one simply and easily mode present to more high-rise.API provides the visit to distributed services sets in all MADI functions and the MADI network.API is made of a single MADI service lists and the professional interface instance that transmits of a plurality of MADI.
Figure 13 has provided the single business station record 180 in the MADI service lists.
Figure 14 has provided the overall structure 190 of a MADI service lists.
The MADI service lists provides " overview " for all available in the more high-rise MADI network 30 business, and has listed about those professional key messages.In the example that provides, the user selects to want business station (although not needing like this) accessed or control, and the user is provided to a short ASCII textual description at each business in the available service station like this.This is presented in a professional station indicator territory 181 (STNTAG).Record 180 also comprises a professional tiny node territory 182 (NODEID) and professional station identifier territory 183 (STNID), and they are to the more high-rise professional station address that provides network 30 Inner that the business station of business is provided.A professional station Attribute domain 184 (STNATRB) is provided the concrete ability information of the more high-rise indication of whereabouts about the business station.For example, if more high-rise needs are connected to the device that starts JINI, then the STNATRB territory just is scanned to determine which station is accessed if any.Because independent station does not need to be inquired about with compatible request in the network, this has reduced the number of times that transmits.The receiving ability at professional station is presented in receiving ability territory, business station 185 (STNSIZE), with the restriction of supporting to change on the memory in the compatible station of MADI.Territory 185 has defined the full-size that can be received and store into the information field in the professional station.The controller that transmits stands in to send and transmits before the grouping, can verify its size.This has overcome a problem, and the transmission that promptly is sent out for receiving station grouping is too big, otherwise this can cause returning wrong responses.STNSIZE territory 185 has just significantly reduced the number of times that transmits like this.In Figure 14, professional station record 191 to 194 is presented (record 1, record 2, record 3 and record n).
The professional interface (MTSI) that transmits of MADI provides the inlet that arrives the MADI business.Be only to have obtained visit to the MADI layer by this interface.In order to understand MSTI, be necessary the concise and to the point following principle of discussing.At first, the disposal ability of assurance MADI layer and storage requirement are minimized very important, and it all is compatible so just making all stations.But, if MADI layer 90 to 97 can not fully be handled the transmission in the network, then have a large number of re-transmission and poor efficiency and be brought into network system.Because transfer mechanism is based on grouping, so following communication concept is established.In the compatible station of a MADI: transmission can be restricted to order and occur, and promptly one is sent in after another.Reception can be restricted to order and occur, and promptly one is received in after another.Send and receive and to carry out simultaneously, promptly when sending, can occur receiving.This means that the compatible stations of all MADI can at any time carry out full-duplex communication in network.Therefore, as minimum requirement, MSTI should comprise that one sends transmission interface (TXSTI) and a reception transmission interface (RXSTI).But, there is the MADI compatibility to stand in great variety on the memory limitations.Some have more additional more competent station (as the agreement station) meeting of sufficient memory to find to send a plurality of transmission simultaneously and also receive a plurality of transmission simultaneously is useful.The MADI layer makes it easier by supporting a plurality of TXSTI and RXSTI example.
Figure 15 has provided and has sent and received a structure that transmits interface 200 (TXSTI/RXSTI).The structure of TXSTI and RXSTI is identical, although be fully independently, is presented in Figure 15.A higher operation layer as shown in Figure 7 is by MADI business of TXSTI request.More high-rise with the following content TXSTI interface of packing into:
The destination address at the business station of business is provided.Destination address comprises a destination node address 201 and address, a point of destination 202.Shown in Figure 13 and 14, more high-risely from MSL, obtain it;
MADI order 203, as will be by in greater detail, order 203 have defined the action in the final purpose station and has indicated and how to have explained an information field;
Data field 204 length that indicated the INFO length of field;
The transmission data are if necessary then arranged in the INFO territory;
Start the source address at the station of transmitting, source address comprises a source node address 206 and a source station address 207.
For the service request in other station, the TXSTI request is transmitted by MADI network 30 and is delivered to operation layer higher in the receiving station by MADI layer RXSTI.
In the Table II below, provided available order in the MADI command set.
Decimal value Command type Describe
0-99 Services sets Be delivered to the business order of the operation layer on the MADI layer.The example of these orders is as follows:SERVICE_RQST_CTRL_MGR-asks packed UI model to download to controller; And the user just can be professional by figure UI control like this.A controller UI prompting of SERVICE_RQST_PRMPT_LST-request tabulation is to download to controller; And the user just can be professional by text prompt control like this.One of SERVICE_RQST_SHRT_PRMPT_LST-request is reduced the controller UI prompting tabulation of length to download to controller, the received professional order of and the user just can be by the next professional action of text prompt control like this.SERVICE_RQST_SECURED_CTRL-request business order SERVICE_ACK_ERROR_1-received by the control SERVICE_ACK_FINAL-of the business of cryptoguard for receiving station and that accept is invalid
100 Extended service set Professional particular command is delivered to operation layer and it is defined especially for specific transactions.Professional particular command is presented in first byte in professional INFO territory.
101-119 Be retained-sky
(table) is continuous
120-149 The service delivery collection The service delivery order indicates a professional order and is embedded in the INFO territory to pass to operation layer.The value defined of transferring command the form in INFO territory, for example for order 120, INFO territory=service priority, the task identifier byte, professional order, professional INFO length, professional INFO.For order 149, INFO territory=user definition
150-159 Be retained-blank
160-239 The network collection Be used to carry out the networking command of all-network management responsibility, for example NETWORK_RQST_INDIRECT_SEND-carries out one and indirectly transmits node that scan N ETWORK_ACK_LOCAL_NODE_SCAN-is generated of a node NETWORK_ACK_STATION_SCAN-station response of NETWORK_RQST_LOCAL_NODE_SCAN-generation
240 The extended network collection Expand the scope of available network order when needed.The extended network order is presented in first byte in network INFO territory below
241-255 Be retained-blank
Table II
Command type is defined and a plurality of example is presented.
Stand and itself also be counted as business in the MADI network strategy.By reciprocity MADI layer as shown in Figure 7, professional order is transmitted between the operation layer at Network station.Order the operation layer at another station in order to send a business, a father as shown in Figure 9 transmits grouping and is used.The COMMAND territory is loaded into a service delivery order (seeing top Table II), and it has been indicated the delivery request of operation layer and has shown the form of INFO section subsequently.The business order (or the order of activating business) that is delivered to operation layer is embedded in the INFO section.
With reference to intermediate transport as shown in figure 10, a service delivery can be as follows: COMMAND=X=120 and INFO=Y.
Figure 16 has provided the business datum encapsulation, and INFO=Y is wherein arranged, and territory 210 is a service priority, and territory 211 is a task identifier, and territory 212 is professional order, and territory 213 is the business information length of field, and territory 214 is a business information.
The extended service set of professional particular command has been simplified the use for the order of the special definition of specific transactions.In order to use extended service set, the business order among Figure 16 will be set to 100.Professional then particular command is provided in first position in professional INFO territory.
A catalogue of MADI net must be held so that professional station can be selected to provide their business.Because transmission bandwidth, energy consumption and the expense of the aerial transmission of honeycomb are first important, must be rejected so current directory information will be distributed to the central test in station that constitutes network.
In the MADI system, a network comprises a start control station and one or more controlled station.If in any one time, controlled station obtain the professional of another station or with information transfer to another station, then it just becomes a controller station.Current catalogue knowledge must be handled to issue the request to business at network Inner in a controller station.It must " see this network ", and controlled station is then followed its instruction " blind " and correspondingly responded.Therefore, each controller is provided for a catalogue.
Figure 17 has provided the catalogue record form 220 of a MADI controller.Record 220 comprises a professional tiny node identifier 221 (NODEID), and a professional station identifier 222 (STNID), identifier 221 and 222 have defined provides professional professional station address to network 30.Record 220 comprises professional station receiving ability territory 223 (STNSIZE), and it has defined the full-size that can be received and store into the information field in the professional station.Record 220 comprises a professional station Attribute domain 224 (STNATRB), and it has defined the business station ability such as the more upper layer network of JINI net.Record 220 comprises 225, one in a professional station indicator territory and is used for the ASCII textual description that the user selects the business station of purpose.Record 220 comprises a professional website access identifier domain 226 (STNACC), and it has defined and has been used for the directly physical medium of visit, for example, 1=UMTS, 2=bluetooth, and 3=IrDA, 255=must pass through the dereference of the intermediate station of territory 227 (ANODEID) and 228 (ASTNID) definition.Under the situation of dereference, for to the dereference at professional business station is provided, territory 227 has defined the professional tiny node of a dereference, and territory 228 has defined the professional station identifier of a dereference.
Figure 18 has provided a whole bibliographic structure.Given is record 230,231,232 and 233.
With reference to the given example of figure 8, the media interviews territory shown in Figure 17 is illustrated with the agreement station 143 in the data station in the node 130 131 and agreement station 133 and the node 140 and the directory content of data station 142, and standing 131,133,143 and 142 is MADI controllers.
Figure 19 has shown the directory content of the catalogue record in the MADI controller.As shown in figure 19, the controller in the example has access domain 221,222 and 226 to 227 (NODEID, STNID, STNACC, ANODEID and ASTNID) in its catalogue.
The situation of local node increase might appear making owing to the increase at other local service station.For operation layer that increase is provided to other station in the network, information that must list of exchange is listed between controller.Should the provide support networking command of four corner of a lot of catalogue exchange commands of MADI system.
Upgrade the following rule of application for catalogue:
Abandon this professional controller station by provide link-access it support it.This means that following territory wants following being transmitted:
STNACC＝255；
ANODEID=transmits the node identifier at the controller station of this project;
ASTNID=transmits the station identifier of the controller of this project;
Transmit for indirect catalogue, the directory information of transmission is added in the catalogue of all intermediate stations, is modified to for each intermediate transport together with ANODEID and ASTNID and determines.If this NODEID and STNID exist in catalogue, the catalogue record that then receives will be left in the basket.If there are STNACC territory=255 at a station in the catalogue, and node scan directly obtains the station, and then STNACC, ANODEID and ASTNID territory are just upgraded by direct visit information.Controller does not write down and comprises its oneself NODEID and the catalogue record of STNID.This method makes controller station list of exchange structure and need not many processing energy simply.Because directly access path is defined in the first stop route, so minimized the size of this structure.As general viewpoint, independently using really of node and station identifier requires to have increased some expenses as MADI transmission grouping dimension and catalog memory.But, this method provides flexibility for system.If node and station identifier are replaced by a single station identifier, then should value can in whole network, be distributed globally.When a station was added on the local node, each catalogue all must be upgraded automatically.This will influence station energy consumption and whole transmission bandwidth.Utilize selecteed method, the MADI order can be provided to make the user can add some node of another WAN by demand, or sends a specific station directory entry to another user, and they just can be connected to only station of distant-end node like this.It is subscriber authorisation in their network and has saved bandwidth and energy.
Describe now with by some relevant function aspects of intermediate transport.With reference to example system shown in Figure 8, and the transmission of definition among Figure 10,11 and 12 grouping, the action that need occur in the MADI layer has for example received the NETWORK_RQST_INDIRECT_SEND order.Receiving station is with the comparison of listing in DNODE and DSTATION and the catalogue, and therefrom be the new value of PDNODE, PDSTATION and PCOMMAND configuration, reconfiguring PSNODE and PSSTATION is the value at described station oneself, recomputate PCHKSM, and the message that the transmission reformatting is crossed is to new destination.
Reply for one and be returned.In order to dispose replying of returning, following action is carried out at described station:
According to the PSNODE that receives and PSSTATION value configuration PDNODE and PDSTATION value;
PCOMMAND is configured to identical with the PCOMMAND that receives, or NETWORK_RQST_INDIRECT_SEND, or NETWORK_RQST_INDIRECT_DELIVERY;
With PSNODE, PSSTATION, SNODE and SSTATION value are configured to the address value at described station oneself;
According to the SNODE that receives and SSTATION value configuration DNODE and DSTATION value;
According to the PCOMMAND configuration COMMAND that receives; Configuration ILEN=1;
Configuration INFO territory comprises response message, for example VALID_RECEPTION or an error code;
Recomputate PCHKSM; And
Send an acknowledgement to its destination.A NETWORK_RQST_INDIRECT_SEND returns a NETWORK_ACK_INTERMEDIATE.A NETWORK_RQST_INDIRECT_DELIVERY returns a NETWORK_ACK_FINAL.
Given is data station 131, the directory content 240 of controller C1, and agreement station 133, the catalogue Inner of controller C2 holds 241, agreement station 143, catalogue Inner appearance 242 and the data station 142 of controller C3, the catalogue Inner of controller C4 holds 243.
With reference to figure 8, the catalogue Inner that can see controller C1 holds 240 the arrive at a station record of 132 and 133 direct transmission by path A and B, and the record of indirect transmission arranged, agreement station 133 conducts in the node 130 are to first intermediate station of the dereference of the business station 141,142 that the business in the network 30 is provided or 143, and controller C1 requested service.
Similarly, controller 133 has to three direct transfer path B, C of business station 141 and 142 and D, and two indirect transfer paths, and its middle controller 143 is first intermediate stations.
Similarly, controller 143 has to three direct transfer path E, G of business station 131 and 132 and D, and two indirect transfer paths, and its middle controller 133 is first intermediate stations.
Similarly, controller 142 has to the business station 131,132 and 133 two direct transfer path F and G, and three indirect transfer paths, and its middle controller 143 is first intermediate stations.
Figure 20 shows that a MADI-SAP software configuration that MADI layer 250 is arranged.The MADI layer handles sublayer 251 by one and a driver sublayer 252 constitutes.Handle sublayer 251 and carry out the control of MADI network processes.The verification that enters a checking and, calculate and add output verification and, the checking destination address and the data length that enter, and on the checking layer 253 of report condition, processing layer 251 comprises following manager:
Message manager 254: handle all inside stories that between software unit and layer, transmit;
A catalog manager 255: carry out all directory operations, as edit, revise, take out stitches, initialization, information request service and provide service lists for MSL;
A delivery manager 256: the management be shared transmission memory (provide and control the visit and state);
Transmission configuration manager 257: the data that configuration transmits;
Command interpreter 258: order that explanation receives and execution are required, the action except that the network configuration action:
A network manager 259: explain the network configuration order receive and carry out be required such as giving/increases/removal is stood from network action; And
Media interviews manager 260: the media drive of selecting transfer operation.
Actuator layer 252 comprises media drive 261, for each media interface that is supported a media drive is arranged all.Given is 263, one UMTS media interfaces 264 of 262, one IrDA media interfaces of a bluetooth media interface and another media interface 265.Media drive 261 is that suitable media interface layer configuration MADI output transmits data.The data that media drive also is received from a media interface configuration for the MADI layer, and report media state.Media drive is carried out all for supporting MADI to handle necessary signaling of information exchange and data management demand between sublayer 251 and Media layer.A media drive interface 266 is provided at the consistent exchanging mechanism of handling sublayer 251 and 252 of actuator layers.When new media interface becomes when available, this can make them easily be added.Adding a new media drive is to support needed whole operations of new media interface in the MADI layer to driver sublayer 261.New media driver that is added of transmission configuration manager 257 configurations.Media interviews manager 260 is selected a media drive.Figure 20 gives the service application 267,268 and 269 on 250, one MADI service application of MADI layer DLL (dynamic link library) 270 and the Media layer API 271.
Figure 21 has provided the model that transmits data by MADI layer 250.Transmitting the mechanism of communication data by MADI layer 250 must be done efficiently as far as possible, need be reached the timing restriction of system by the memory limitations that diversity applied of the mobile product of compatibility because will consider.For this reason, the system of a shared storage of imagination is used.A single buffer is used to propagate MADI by MADI layer 250 and transmits data.The rarest 2 buffers in MADI layer 250 are although can have more.This has guaranteed can both satisfy for all compatible stations the requirement of full-duplex communication.In this respect, a variable buffer size provides greater flexibility in the system.For example, the short message of two-forty is thought to handle in specific station perhaps.If variable buffer size is supported, then this station can be selected only to accept short message, and does not use more memory just can transmit buffer for a large number of MADI is provided oneself.For this reason, the MADI system supports variable-sized transmission buffer.This is by the STNSIZE territory among the MSL (as shown in figure 13), and catalogue record (as shown in figure 17) becomes more convenient.Service application contrast MSL before request transmits checks their transmission length.If a station has received the transmission grouping of an oversize, then this standing-meeting is refused it and is returned a wrong responses.In Figure 21, MADI transmits buffer 280 and is presented, and their bufferings transmit data 281 by the business that the professional API270 of MADI is exchanged, and transmit data 282 by the medium that media drive interface 266 is exchanged.Give an indication and send the MADI_Send_Indication283 that requires and identified an associated buffer, a MADI_Send_Report284 who reports transmit status (effective or wrong) and identify an associated buffer, one indicates a MADI and receives incident, transmit accepting state (effectively or wrong) and identify the MADI_Delivery_Indication285 of an associated buffer, one indicates the Media_Send_Indication286 that sends requirement and identify an associated buffer and media drive, a Media_Send_Report287 who reports transmit status (effective or wrong) and identify an associated buffer and media drive, one indicates medium and receives incident, transmit accepting state (effectively or wrong) and identify the MADI_Delivery_Indication288 of an associated buffer and media drive, and a MADI_Memory_Status289 who indicates buffer availability and allow its acquisition.Give an operation layer 290.The exchange of information is a full duplex, and a transmission and a reception operation are arranged.
With reference to Figure 20 and 21, one transmit operations by following execution:
A service application utilization indicates the MADI_Memory_Status289 which buffer can be used, and transmits from MADI and selects an available buffer the buffer 280.After business had obtained buffer resources by renewal MADI_Memory_Status289, business datum was loaded onto in the available buffer.Service application sends the MADI_Send_Indication283 that indicates which buffer to send to MADISAP then.One receives MADI_Send_Indication283, and MADI processing layer 251 is just analyzed relevant MADI and transmitted buffer, and generates a father if necessary and transmit grouping.In case this transmission grouping is correctly disposed, processing layer 251 just sends to actuator layer 252 to Media_Send_Indication286.Which driver this has indicated and has been used to transmit the buffer that has comprised the transmission grouping.After a specific medium driver had been finished transmission, it reported transmit statuss by the Media_Send_Report287 that has identified associated buffer, the media drive that is used and error condition (effective or wrong) to processing layer 251.After processing layer 251 received Media_Send_Report287, it then was configured the Media_Send_Report284 that has identified associated buffer and error condition (effective or wrong) and it is returned to operation layer.
Operate by following execution with reference to Figure 20 and 21, one receptions:
The MADI_Memory_Status289 which buffer specific media drive utilization has indicated to use obtains an available buffer.In case media drive has obtained a buffer resources by upgrading MADI_Memory_Status289, then a transmission grouping that enters just is loaded into this available buffer.After the buffer loading was finished, media drive just sent Media_Delivery_Indication288 to processing layer 251.This has indicated medium and has received incident, transmission accepting state (effective or wrong) and identify associated buffer and media drive.One receives Media_Delivery_Indication288, and processing layer 251 is just analyzed the data that receive and finished following action: the data that receive are verified, and suitable replying is sent out.One independently for a short time replys buffer and may be required to send and reply.Operation layer 290 is responsible for replying for the business order.Professional order is provided so that make handshaking to be performed in needs.But MADI layer 250 is always replied the reception to a transmission.Effectively receive for one, necessary operation will be performed.If the COMMAND that is received is a service delivery order, then processing layer 251 just sends MADI_De1ivery_Indication285 to operation layer 290.This has indicated a MADI and has received incident, transmits accepting state (effective or wrong), and the sign associated buffer.
By the professional API (as shown in figure 21) of MADI, be provided for operation layer 290 for the visit of MADI layer 250.This comprises as the defined MSL in front, MSTI and signaling.MSTI comprises TXSTI/RXSTI200 as shown in figure 15.These API unit are comprised in MADI and transmit in the buffer 280.
Figure 22 has provided the MADI that has the buffer Inner appearance that sends TXSTI or receive RXSTI and has transmitted buffer structure.It is consistent that buffer Inner holds the territory of dividing into groups with transmission shown in Figure 12, and comprise father's destination node address 300 (PDNODE), address, a father point of destination 301 (PDSTATION), father and order 302 (PCOMMAND), father's information field length buffer territory 303 (PILEN), packed father's information buffer territory 304 (PINFO), father's source node address 305 (PSNODE), father's source station address 306 (PSSTATION) and father's verification and 307 (PCHKSM).Packed father's information buffer territory 304 comprises a final purpose node address 310 (DNODE), a final purpose station address 311 (DSTATION), a command field 312 (COMMAND), a length field 313 (ILEN), a final purpose information field 314 (INFO), an original source node address territory 315 (SNODE) and a starting resource station address territory 316 (SSTATION).
Provide in the MADI system dividing the support of Business Processing priority.Some service delivery command definitions comprise the INFO form in a service priority territory (as shown in figure 16).All such orders all should have the high priority of other professional order than all.This makes operation layer 290 can check the priority that pending MADI transmits and correspondingly handles them.
Except described packet switching service, also can in MADI circuit-switched service of a specific transactions emulation.This can be that the professional order of SERVICE_RQST_CIRCUIT_SWITCHED is triggered, in operation layer 290 one priority assignment independently by receiving.If operation layer 290 was not once given other business with the circuit switching attribute assignment, then the business station of the request circuit reciprocal exchange of business just can be assigned with the highest priority on service level.
Professional can provide they in the MADI system, transmit be encapsulated in security mechanism in the professional INFO territory.This will provide a safe floor in specific transactions.INFO form that comprises a password territory of some service delivery order meeting definition.This will provide an extra safe floor on the operation layer protection.Networking command also can be provided the access permission of configure to a controlled station.Situation may be as follows: controlled station of a controller station request visit, this controlled station is replied with a password request.This controller sends password to obtain visit.
Below some main network configuration activities be described.
In order to generate a local node, following action will be performed:
A request NETWORK_RQST_LOCAL_NODE_SCAN, i.e. network requests local node scan command in TXSTI.MADI layer 250 is handled these requests and is disposed its NETWORK_RQST_STATION_SCAN that sends by Media_Send_Indication286, i.e. network requests station scan command.Media drive in the actuator layer 252 sends to this transmission the media interface of a relevant execution transmission.An available station is with a NETWORK_ACK_STATION_SCAN, promptly a network answer station scan command is replied, and this order comprises its NODEID and STNID (all not equaling 0 if just also be assigned with), STNSIZE, STNATRB, STNTAG and STNACC (as shown in figure 17).After receiving a NETWORK_ACK_STATION_SCAN, processing layer 251 is just with a NETWORK_RQST_STATION_CONFIG, promptly a network requests station configuration order is replied, and this order comprises the NODEID and the STNID (if value also is not assigned with) at the station that is assigned to new acquisition.Processing layer 251 adds the information at station in its catalogue to and goes.The NETWORK_RQST_STATION_SCAN transmission is repeated until that no longer including NETWORK_ACK_STATION_SCAN returns then.Processing layer 251 is selected next available media drive and is repeated the first five step in top six steps afterwards.Six steps are repeated until that all media drives were all trained above all.Processing layer 251 returns a NETWORK_ACK_LOCAL_NODE_SCAN then, and promptly a network answer local node scan command is given RXSTI together with the MADI service lists that is updated.Like this, a local node just is configured.Above action training existing all Media layer in the local node.The scanning of part local node also can be supported to be scanned with the medium that allow only to be required.
In order to generate a distant-end node, following action will be performed:
By sending a NETWORK_RQST_CALL_SETUP order, i.e. TXSTI is given in network requests call setup order, and the link between a native protocol station and remote protocol station must be established.This indicates the number that local PS calls out to be provided in the INFO territory.As response to NETWORK_RQST_CALL_SETUP, far-end PS returns a NETWORK_ACK_CALL_SETUP, i.e. network answer call setup order, this order comprise its NODEID and STNID (all not equaling 0 if just also be assigned with), STNSIZE, STNATRB, STNTAG and STNACC (as shown in figure 17).After receiving NETWORK_ACK_CALL_SETUP, processing layer is just with a NETWORK_RQST_STATION_CONFIG, promptly a network requests station configuration order is replied, and this order comprises NODEID and the STNID (if value also is not assigned with) of the PS that is assigned to new acquisition.Processing layer 251 adds the information at station in its catalogue to and goes.If the link between local PS and the far-end PS is established, then Shang Mian three steps can be crossed.
In case local PS is established to far-end PS link, then NETWORK_RQST_REMOTE_NODE_SCAN order, promptly a network requests distant-end node scan command just can be requested in TXSTI.This order is transmitted to far-end PS.One receives this order, and far-end PS itself just becomes a controller station, and according to the defined execution local node scanning of the first seven step that generates a local node.Remote controller set up by this way it local node, its catalogue.Finish and node when being established when operation, remote controller returns a NETWORK_ACK_REMOTE_NODE_SCAN, i.e. network answer distant-end node scan command, and this order comprises the copy to its local directory information of portion of initiating station.Processing layer in the initiating station 251 upgrades its catalogue and the NETWORK_ACK_REMOTE_NODE_SCAN that receives is returned to RXSTI together with the MSL that is updated then.Distant-end node just is configured and is obtained by initiating station like this.Above action training existing all Media layer in the distant-end node.The segment distal node scan also can be supported to be scanned with the medium that allow only to be required.This MADI method has reduced the transmission on the far-end link, thereby has saved transmission bandwidth and the disposal ability in the system.
Controller can add new website in their local node to according to local node of generation is described.This process is only upgraded the catalogue in the local controller.A selection can be involved to allow more to notify catalogues to upgrade to all connected controllers after the kainogenesis when a catalogue.For this reason, in the INFO territory of NETWORK_RQST_LOCAL_NODE_SCAN and NETWORK_RQST_REMOTE_NODE_SCAN grouping, provide a territory whether to be required to indicate this.If one stands in and receives a renewal indication after a catalogue is changed, the catalogue that then must please look for novelty changes.
Figure 23 has provided a possible imagination, that is: use the fixed network of MADI to move.That given is a mobile MADI PDA330, and it is the data station that can communicate by letter with a MADI mobile phone 332 with a mobile JINI network 331, and the latter is an agreement station.In a house 333 or similarly build Inner, MADI fixes or mobile phone 334 (as another agreement station) is provided, and it can be communicated by letter with MADI mobile phone 332.333 Inner in the house, phone 334 can be communicated by letter with a MADI data station 335 such as personal computer or television equipment, and the latter can also communicate by letter with the JINI network 336 of a chamber Inner.
Therefore the advantage of MADI system can be summarized as follows:
Notion is simple.The compatible PS of MADI can visit unlimited group peripheral DS device.The complexity that the user uses all is limited in the DS device, rather than among the PS.Therefore PS can provide voice service for the user very simply by a keyboard UI.Therefore PS does not need the display unit of any kind of, can be considered to be independent of language.This means that identical PS product can be fit to the market of many country variants.Owing to do not need display among the PS,,, and more still less give prominence to so it can be smaller so its size is only limited by battery module.PS and the unlimited DS device compatibility of organizing.PS is Open architecture and interpolation that be provided in the future new data service, professional enhancing and new DS product.Utilize the notion of modularized design, the main protocol element that comprises the element of the base band business that is useful on should be that the user is interchangeable.The MADI notion is positioned to a modular unit in the product family with PS, and make easier to the simple connection of a distributed computing network.
The MADI system is provided for any moving or the independently local of fixture and the facility of wide area network networking.When being required, the MADI network is disposed simply and effectively by the user, or is disposed automatically by service application.The MADI system is particularly designed for mobile environment with restriction transmission bandwidth, disposal ability and storage requirement.Network management overhead is general proportional with the station number that is supported.Give the station by extracting the catalogue details, in connected station distribution process demand and provide routing iinformation transmitting grouping Inner, the MADI system is optimized to reduce these expenses.The MADI network also is upgradeable for demand immediately, from 2 maximum 65536 stations of standing.The MADI system provides networked devices to everyone, does not need the cellular services supplier to pay expense.There is not disbursement demand for service supplier, or mounting cost.The buyer who stands pays for the MADI layer in the purchased product, and all users are hardly with paying for the multiple function that is increased.The MADI system is independent of the Internet, all is addressable thereby for all the user at a compatible PS station is arranged, (not required the Internet account).But, if one the station of the Internet capability is arranged is the part of MADI network, then just can be made into for other connected station be available to Internet service.Because needed driver can be added on demand, so the MADI system is independent of media interface to a great extent.This for be used for the PS device such as the far-end connection protocol of UMTS, GSM, TDMA and W-CDMA and particularly useful such as this locality networking interface of bluetooth and IRDA.The MADI system is configured to fixed network interface such as JINI, supports and provides the mobile management for more high-grade networking strategy.Transparent access is provided in the MADI network so that only visit which and the connected station of more high-grade Web-compatible.
Consider aforesaid content, for those skilled in the art, clearly can according to following by accessory claim regulation, the spirit and scope of the present invention Inner makes various modifications, and therefore the present invention is not limited to given example.Word " comprises " not to get rid of and is listed in listed other unit or step outside those in the claim.

Claims (20)

1. a dynamic configurable network (20), it comprises:
Comprise the first service application layer protocol (111) that first data service is provided and first data station (51) of first physical layer protocol (M2);
The first wireless protocols station (53) that comprises the second service application layer protocol (110), this first wireless protocols station (53) is configured to utilize above-mentioned first physical layer protocol (M2) by first communication link and above-mentioned first data station (51) swap data physically, and be configured to utilize an Operational Visit point agreement (91) that is comprised in above-mentioned first data station (51) and the above-mentioned first wireless protocols station (53) to go to visit above-mentioned first data service by a peer-to-peer communications, in above-mentioned first data station (51), above-mentioned Operational Visit point agreement (90; 91) be configured between above-mentioned first service application layer protocol (111) and above-mentioned first physical layer protocol (M2), transmit data, and in the above-mentioned first wireless protocols station (53), above-mentioned Operational Visit point agreement (90; 91) be configured between above-mentioned second service application layer protocol (110) and above-mentioned first physical layer protocol (M2), transmit data,
Above-mentioned first data station (51) and the above-mentioned first wireless protocols station (53) have constituted first LAN node (50) in the above-mentioned dynamic configurable network (20).
2. as desired dynamic configurable network (20) in the claim 1, comprise second data station (52) in above-mentioned first LAN node (50), this second data station (52) comprises the 3rd service application layer protocol (112), second physical layer protocol (M3) and the above-mentioned Operational Visit point agreement (90 that second data service is provided; 91; 92), the above-mentioned first wireless access protocol station (53) is configured to utilize above-mentioned second physical layer protocol (M3) by second communication link and above-mentioned second data station (52) swap data physically, and it utilizes above-mentioned Operational Visit point agreement (90; 91; 92) visit above-mentioned second data service by a peer-to-peer communications with above-mentioned second data station (52).
3. as desired dynamic configurable network (20 in the claim 1,25), the wherein above-mentioned first wireless protocols station (53) comprises the 3rd physical layer protocol (M1), above-mentioned network (20,25) comprises one the 4th service application layer protocol (114), above-mentioned the 3rd physical layer protocol (M1) and above-mentioned Operational Visit point agreement (90; 94) the second wireless protocols station (63), the above-mentioned second wireless protocols station (63) is comprised in second LAN node (60), the above-mentioned first wireless protocols station is configured to utilize above-mentioned the 3rd physical layer protocol (M1) by third communication link and the above-mentioned second wireless protocols station (63) swap data physically, and it utilizes above-mentioned Operational Visit point agreement (90; 94) visit above-mentioned the 4th service application layer protocol (114) by a peer-to-peer communications.
4. as desired dynamic configurable network (20 in the claim 3,25), the wherein above-mentioned second wireless protocols station (63) comprises one the 4th physical layer protocol (M2), above-mentioned network (20,25) comprises the 5th service application layer protocol (115), above-mentioned the 4th physical layer protocol (M2) and an above-mentioned Operational Visit point agreement (94 that the 3rd data service is provided; 95) the 3rd data station (61), described the 3rd data station (61) is comprised in above-mentioned second LAN node (60), reach the above-mentioned second wireless protocols station (63) and be configured to utilize above-mentioned the 4th physical layer protocol (M2) to believe link swap data physically, and utilize above-mentioned Operational Visit point agreement (94 by four-way; 95) visit above-mentioned the 3rd data service by a peer-to-peer communications.
5. as desired dynamic configurable network (20) in the claim 2, wherein above-mentioned Operational Visit point agreement (90; 91; 92) be configured to: when above-mentioned second data service was asked from above-mentioned first data station (51), directly (A) carried out above-mentioned second data service in above-mentioned second data station (52).
6. as desired dynamic configurable network (20) in the claim 2, wherein above-mentioned Operational Visit point agreement (90; 91; 92) be configured to indirect (B) and carry out a service request that comes from above-mentioned first data station (51) to finish above-mentioned second data service (162), this is carried out indirectly and is finished by the above-mentioned first wireless protocols station (53).
7. as desired dynamic configurable network (20) in the claim 4, wherein above-mentioned Operational Visit agreement (94; 95) be configured to carry out a service request that comes from above-mentioned first data station (51) to finish above-mentioned the 3rd data service in above-mentioned the 3rd data station (61) indirectly, the intermediary that should carry out by the above-mentioned first and second wireless protocols stations (53,63) indirectly finishes.
8. as desired dynamic configurable network in the claim 1, wherein the transmission of the data between above-mentioned first data station (51) and the above-mentioned first wireless protocols station (63) is packet switching.
9. as desired dynamic configurable network (20) in the claim 6, wherein the data transmission is packet switching, and at above-mentioned first and second data stations (51,52; 131,132) and the above-mentioned first wireless protocols station (53; 133) in, above-mentioned Operational Visit agreement (90; 91; 92) use catalogue (240 separately, 241,242) to finish above-mentioned indirect execution, above-mentioned catalogue (240,241,242) comprise node address (221) and the station address (222) that the data station of data service to above-mentioned network (20) (51,52) is provided, and the node address (227) and the station address (22) of first intermediate station in the above-mentioned network.
10. as desired dynamic configurable network (20) in the claim 6, wherein the data transmission is packet switching, startup is for the data station (131 of the above-mentioned network (20) of the service request (154) of a data business, 132) send one and be grouped into first intermediate station (133), destination node address (152) and a middle address, point of destination (153) in the middle of this grouping comprises one, an intermediate station action command (154), the purpose information field (151) at a final purpose station (141).
11. as desired dynamic configurable network (20) in the claim 10, wherein above-mentioned purpose information field (151) comprises a final purpose node address (160), a final purpose station address (161) and a final purpose action command (162).
12. as desired dynamic configurable network (20) in the claim 11, wherein above-mentioned purpose information field (151) comprises a final purpose station data field (164) and a final purpose data length field (163).
13. as desired dynamic configurable network (20) in the claim 10, wherein above-mentioned grouping comprises an intermediate source node address (157) and an intermediary source station address (158), and above-mentioned purpose information field (151) comprises an original source node address (165) and a starting resource station address (166), so that be provided at a data service request station and the professional reply path of carrying out the station between the data station of final purpose.
14. as desired dynamic configurable network (20) in the claim 1, wherein the data transmission is packet switching, above-mentioned Operational Visit point agreement (90; 91) utilize at least one buffer in the buffer unit pool (280) to come to use the transmission information of (111) and form a father and transmit grouping (150) based on coming from above-mentioned first operation layer, and this father is transmitted grouping (150) send to a media drive (261), and above-mentioned Operational Visit point agreement (90; 91) utilize at least one above-mentioned buffer to load transmission received, that come from above-mentioned media drive (261) grouping, and in the above-mentioned transmission package that receives, destination information is sent to above-mentioned first operation layer and use.
15. as desired dynamic configurable network (20) in the claim 9, wherein when the node address of the grouping that pass through and station address when not existing in the station that comprises above-mentioned catalogue (240,241,242), this information updating of this catalogue.
16. as desired dynamic configurable network (20) in the claim 9, wherein above-mentioned catalogue (240,241,242) is used by a station that comprises the station of above-mentioned catalogue (240,241,242) to scan and the node address and the station address renewal of acquisition.
17. as desired dynamic configurable network (20) in the claim 16, wherein in above-mentioned first LAN node (50 of scanning; 130) before the station outside, the above-mentioned first wireless protocols station (53; 133) setting up a link arrives in above-mentioned first LAN node (50; 130) the wireless protocols station (63,73 outside; 143).
18. a wireless protocols station (53) that is used in the dynamic configurable network (20) that has comprised a data station (51) that contains the first service application layer protocol (111) that data service is provided and a physical layer protocol (M2), above-mentioned wireless protocols station (53) comprises:
One second service application layer protocol (110), above-mentioned wireless protocols station (53) is configured to utilize above-mentioned physical layer protocol (M2) by a communication link and above-mentioned data station (51) swap data physically, and is configured to utilization and is included in Operational Visit point agreement (90 in above-mentioned data station (51) and the above-mentioned wireless protocols station (53); 91) visit above-mentioned data service by a peer-to-peer communications, in above-mentioned wireless protocols station (53), above-mentioned Operational Visit point agreement (90) is configured to transmit data between above-mentioned second service application layer protocol (110) and above-mentioned physical layer protocol (M2).
19. as desired wireless protocols station (53) in the claim 18, wherein the data transmission is packet switching, above-mentioned Operational Visit point agreement (90) is utilized at least one buffer in the buffer unit pool (280) to come to form a father based on the transmission information that comes from the above-mentioned first service application layer protocol (111) to transmit grouping (150), and this father is transmitted grouping (150) send to a media drive (261), and above-mentioned Operational Visit point agreement (91) utilizes at least one above-mentioned buffer to load received, come from the transmission grouping of above-mentioned media drive (261), and in the above-mentioned transmission package that receives, destination information sent to the above-mentioned first service application layer protocol (111).
20. the data station (51) in dynamic configurable network (20) that is used in the wireless protocols station (53) that comprises one first a service application layer protocol (110) and an Operational Visit point agreement (90), above-mentioned wireless protocols station (53) is configured to utilize a physical layer protocol (M2) by a communication link and above-mentioned data station (51) swap data physically, and this data station comprises:
The second service application layer protocol (111) of a data business is provided;
Above-mentioned physical layer protocol (M2); With
Above-mentioned Operational Visit point agreement (91),
Above-mentioned data station (51) is configured to utilize above-mentioned Operational Visit point agreement (91) to provide data service to above-mentioned wireless protocols station (53) by a peer-to-peer communications, in above-mentioned data station (51), above-mentioned Operational Visit point agreement (91) is configured to transmit data between above-mentioned second service application layer protocol (111) and above-mentioned physical layer protocol (M2).
CNB008014027A 1999-05-13 2000-04-25 Distributed local and wide area network independent of connection media supported in networked devices, and managed by the networked device Expired - Fee Related CN1272934C (en)

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