CN1764134A - General access point, network communication system and its method - Google Patents
General access point, network communication system and its method Download PDFInfo
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Abstract
The invention discloses a network communication system, which comprises: a general access point, a website communicated with said point, and opposite network infrastructure. This invention can construct integrated platform fir to next generation broadband, not only supports PC communication, but also supports detector and other wireless application.
Description
Technical field
Present invention relates in general to carry out the digital communication network of text and multi-medium data transmission.Particularly, the present invention relates to a kind of broadband access system, its configuration and operational processes can realize in wired system and wireless communication system.
Background technology
For realize more flexibly, broadband communication network access scheme more flexible and more high bandwidth, communication industry still need to solve some technical barriers.At present, the user can obtain direct Ethernet broadband access, but because broadband access comprises the technology that many kinds are dissimilar, this technical barrier is difficult for solving.Although Ethernet has become the basic fundamental of many digital communication patterns, and ethernet technology fast development for many years, become the present broadband services demand that solves, and keep its simplicity and high speed solution flexibly cheaply, but it is because this technical barrier, wideer and the application of Ethernet access technology on broadband networks more flexibly is still limited.Particularly, following description provided some main broadband access technologys and realize more flexible and more high bandwidth Ethernet solution the technical problem of necessary solution.
Broadband technology
Main access style technology comprises consumer wideband Ethernet and WLAN or WiFi, DSL (Digital Subscriber Line), and wire line MODEM.Traditional Local Area Network is the short haul connection net under certain standard control.
Consumer wideband Ethernet and WLAN (wireless local area network)
Consumer wideband Ethernet access technology provides the physics of the subscriber equipment connection that is established to BAP(broadband access point) to insert variation.The access of cable broadband Ethernet and wireless ethernet LAN (WiFi) is used to make wired and wireless terminal user equipment can the access band net.In other words, the consumer wideband Ethernet can be supported wireless and wireline equipment technically, with access network.User's Ethernet can provide high access speed, the wired access bandwidth of for example single P2P 100Mb/s, and insert configuration flexibly, for example the 10Mb/s of Gong Xianging is to the 54Mb/s access bandwidth.It can also be created LAN (private network and enterprise network) and communicate by letter.
Adopt the broadband access of this technology to need a lot of circuits to install, this makes infrastructure or expense cost very high.Equally, WLAN scheme (WiFi) also needs the line tower foundation facility, because only at end user station, just is wireless connections between the wireless device, and its access point (AP) is connected to the wired infrastructure of consumer wideband Ethernet by circuit.Generally speaking, the excessive demand to the line tower foundation facility makes this broadband to insert in the place away from the Ethernet installation region.
DSL and wire line MODEM
Use DSL technology access band net and widely adopt, because this technology has been utilized existing telephone net infrastructure in the residential block in many cities.Consequently, the existing telephone service provider can easily monopolize the DSL business in many countries.Telephone line is connected to the DSL infrastructure very near with Customer Location, just Multiplexing Unit.But the professional connection of all DSL must be set up by service provider's Broadband Remote Access Server (BRAS).Because this requirement, DSL technology can't be supported communication or LAN communication between the building.Another defective of DSL access technology is that its bandwidth is fixed, and limited, with distance dependent.
Cable modem technology can distribute bandwidth neatly, but obtains or the bandwidth number that distributes depends on the number of users that is connected to broadcasting star infrastructure.Similar to the DSL access technology, it also can't provide communication or LAN communication between the building.In addition, it is also the same with the Ethernet broadband, require to have line service provider infrastructure, and the circuit that is connected to user front end.
Can explain in detail below, still there is common technical barrier in these main broadband network access technologies, limited the more exploitation of the Ethernet broadband access scheme of high bandwidth more flexibly, because following factor still can't occupy most of broadband access market:
A. physical restriction
All these existing technology all need the access point of subscriber equipment or the wired or wireless installation of feed point.The front is mentioned, and wireless or catv terminal subscriber equipment requires access point to be wirelessly connected to industry ethernet, switch or LAN infrastructure to the Ethernet broadband access.This specification requirement higher the expense cost-except basic necessary telephone line, the user also needs to be linked into the ethernet line of front end.In addition, neighbouring must have or install suitable lan network infrastructure (comprising jack and installation).This circuit is installed investment may be risky, may produce suitable repayment to this installation investment.As everyone knows, not every house user, business user, and possible building can both be after providing this access orders broadband access immediately.Therefore, provide a kind of scheme, can cancel this physical restriction and risk, still can keep the convenience of broadband access simultaneously and use popularity, just seem very urgent.
B. there is not public access point
Wireless LAN access point is called AP, is that wireless device obtains the entrance that broadband network inserts.Therefore, unless wireless device in zone near certain AP, and be AP wireless frequency (RF) cover or the base station radius in, otherwise just can't use this wireless device.Similarly, wired or non-wireless terminal can't be realized communication can only leaning on AP to provide for wireless terminal user equipment in the zone of service.Even if wireless and wire user defines obtaining broadband access, under above two kinds of situations, access point (AP) must be the part of ethernet lan infrastructure.Another technical limitations that industry need overcome is that each existing Ethernet access point is at a certain particular technology design.Owing to do not have industrywide standard, and in fact exist so how different access technologies, so further limited the access of broadband network at access point design and interface.
C. limited selection
As mentioned above, the selection of network user's access band net is very limited.Under the situation that does not have ethernet line infrastructure (just LAN or Ethernet switching node), if near the multiplexing station of DSL is arranged, the user will seek help from DSL service, the latter provides by telephone line.Another kind of possible selection is to use wire line MODEM, and single end user device-this is the same with DSL but this scheme is subject to.It also needs a wired infrastructure.Like this, it is very high, uneconomical all broadband access infrastructure (DSL, wire line MODEM, user's Ethernet) to be installed in certain less geographic area cost.Therefore, need a kind of can be for the user provides the more broadband access scheme of more options, and do not need the user to be positioned near the basic infrastructure, thereby avoided extra infrastructure investment.
D. the application of non-opening
At present, Ethernet broadband access infrastructure only is fit to computer internet communication.This limited application is to be caused by design concept between the physical restriction of all end user devices and the wireless and wired access and the difference between the implementation.At present, needing the end user device of access network and using has had very great development, comprise the equipment such as detecting devices, they can be wireline equipment or wireless device, for example are used for the radio frequency identification equipment (RFID) and the bar-code scanner of stock's control.Allowing the shared platform of detection network and existing Ethernet broadband infrastructure carry out computer internet communicates by letter and may not accomplish.Under the normal condition detector need himself stream and control operation under carry out point-to-point communication.But the Internet user provides access by ISP (ISP).In addition, the detection network topology may be according to position of detector, along with the time changes.And the physical infrastructure underaction can't provide dynamic service to dispose at present.Need a kind of new universal solution, make general access technology can allow compunication and internet, applications and detection network to use coexistence.Simultaneously, its node also must correspondingly be accepted the dynamic probe position, carries out point-to-point communication, and makes the Ethernet platform become a kind of Integrated Solution, can sell at the next generation's application and the situation of any kind that may occur.
E. non-integrated switching
Although it is wired and wireless to utilize different access points to support, there do not have a kind of processing method to allow to be wireless to wired, perhaps reciprocal seamless switching communication.Equally, do not have a kind of processing can allow radio communication from the AP of an identical or different ESS (extended service set) or main frame to another AP more low layer or switch the switching of host-to-host just fast.Existing radio communication switching only can occur in the identical main frame or ESS between the AP.This be because, the prior art of electric engineer's standard (IEEE) 802.11f adopts the TCP layer, the switching of higher level just, comparatively complexity and speed are slow for it.
Advanced wireless access
Wireless mesh network (mesh network) and wireless Ad-Hoc (mobile Ad hoc network) scheme are the possible schemes that overcomes some problems that above-mentioned prior art faces.But because following reason, wireless mesh network and wireless Ad-Hoc scheme can't solve all problems:
Wireless Ad-hoc
Wireless ad-hoc technology is the scheme that is provided to the dynamic access of network for wireless terminal user equipment, it makes each wireless terminal user equipment self become an access point (AP), and, transmit message and give other wireless terminal user equipment as a router.In order to adopt this scheme, each wireless terminal user equipment can with other wireless terminal user devices communicating, and do not need central network control.In other words, the point to-point communication of ad-hoc mesh network scheme support point, communication also can arrive the destination through the end user device of a series of wireless connections.All end user devices of forming the ad-hoc mesh network must often upgrade its network topology knowledge.This is essential, because the position of each end user device and state are all in dynamically changing.In order to ensure the terminal (equipment) that packets of information is successfully consigned to as named place of destination, the communication route is jumped station (hopping station) by each and is dynamically determined at each packet.The most suitable detector network of Ad-hoc technology and Military Application.
The someone is proposed in and also uses the configuration of ad-hoc mesh network in the WLAN application, and wireless device can be operated in outside the BSS scope of its distribution.This is also referred to as DAMAN in the Alcatel of France project, the ad-hoc ability is introduced each end user device, therefore, wireless terminal user equipment at a distance can arrive LAN AP, even directly and be registered in other wireless terminal user devices communicating (point-to-point communication) on the same BSS.But, lack stable infrastructure or topology and make ad-hoc node (being installed on the subscriber equipment) complicated more.Because there is not central authorities' control, each wireless terminal user equipment must can be carried out quick and careful calculating, and makes relevant decision, comprises route and preceding commentaries on classics.Because the quick change of the subscriber equipment quantity of network topology and registration, each ad-hoc equipment all needs very a large amount of memories and high processing rate, could satisfy these calculating and renewal that Route Selection requires.Except these high equipment performance demands, its also demanding power consumption.This is because must make that all wireless terminal user equipment can be online continuously, carries out dynamic change renewal and Route Selection task.In addition, because this technology is that ad-hoc mesh network access technology does not still solve the technical barrier that whole communication network industry discussed above is faced at the wireless terminal device user.
Wireless mesh network
Network in wireless mesh network also can only be by the wireless terminal user device access, and the latter can carry out a plurality of jumping operations.But different with ad-hoc, wireless mesh network realizes that by hierarchical structure the communication of all end user devices all must be at first through a gateway station.Lead on the route at gateway station at packet, be appointed as the end user device of packet rs destination node, be considered to middle or hop node.Only after having arrived the gateway station, this node just can be identified as the destination node of packet.This grouping is sent back to this node by routing immediately subsequently.Obviously, wireless mesh network is not supported point to point link.It is also efficient inadequately to come and go the Route Selection operation, because it has consumed more bandwidth, brings an extra time delay.
Connect the introducing mode although wireless mesh network proposes a kind of simple dynamic radio, it in addition can finally stride the MAN running, this scheme requires end user device can carry out at a high speed and complicated calculating, this and ad-hoc end user device are similar.This is because terminal regularly changes its position and has (Kai Heguan) in system.Therefore, end user device needs often to upgrade its network topology knowledge, when receiving packet at every turn, carries out a lot of Route Selection and calculates.In addition, notice that this scheme only is applicable to wireless terminal user equipment.
Enabled production
There are some products that wireless access is provided on the market, and expanded mesh network architecture Radio Access Network.But these products all have some technical limitations, can't provide fully a kind of and solution completely for all above-mentioned difficulties.
The outdoor WLAN mesh network network plan (for example product of BelAir) that a plurality of point-to-point structures with connection access point (AP) of carrier-class application are arranged on the market at present.This system only adopt can extended wireless the directional antenna of transmission.Outdoor AP also injects building with signal.It combines open IP architecture or platform and measured Wi-Fi technology.They do not provide low layer and the fast handover operation between the different AP, for example switching between the BSS of its product.And do not provide switching between the ESS in terminal use's connection yet.Switching from IEEE802.3 to IEEE802.11 is not provided yet, perhaps oppositely switches.This product is used to support that the pure wireless device to network inserts.It requires more antenna could realize covering fully, and only is applicable to that the communication that provides for concentrating in certain specific region inserts.
Other inserts expansion product and allows user's roaming, at various public places access band, but can only be roaming (for example product of Airpath) from hotspot to hotspot.They do not support to solve the ability of the required integrated platform of future generation of above-mentioned difficulties.
Another platform allows the Wi-Fi roaming, wherein the terminal use can roam, but can not switch to the ESS of affiliate (different business provider), and hotspot or Wi-Fi platform still can be identified, and acquisition broadband service, and sacrificing security (for example Tatara product) not.Affiliate's QoS agreement and the interoperability between the management agreement also are improved.But the interconnection and interflow between mesh network and the AP is not provided, and the switching of host-to-host.Its objective is that forming a kind of Wi-Fi cooperative relationship can promote wireless application, increases profit.The product that Tatara provides is based on the Wi-Fi scheme of existing standard, but its cooperation program provides roaming, rather than switches to the Wi-Fi platform that belongs on different business provider or the network operation.It does not support to solve the required ability that evolves to integrated platform of future generation of above-mentioned difficulties.
In a kind of expansion Wi-Fi scheme with the AP that can increase the wireless platform extension, each AP can be configured to serve as a radio repeater station.Like this, by introducing wireless repeater AP, can expand the scope (for example product of AboveCable) of AP BSS in logic.This repeater AP does not need to be connected to main LAN infrastructure by circuit, but keeps the wireless connections with his father AP.Has only father AP by being wiredly connected to LAN infrastructure.Switch and just be provided between the AP (comprising repeater) of identical ESS.This series products does not possess the mesh network ability so that redundancy to be provided, and the point-to-point communication between the subscriber equipment.It can only be used for wireless terminal user equipment, does not have general switching and roaming (between the AP of different ESS and the communication between wireless and the wire user).Therefore, it can't be called integrated platform of future generation.
Also have a kind of roof radio node, its business provides the form that finally requires the wireless mesh network platform, and wherein each radio node is not only selected route, and serves as the marginal node (for example product of Nokia) of wireless platform.It is directly connected to end user device or a building local zone distributed network.This technology comprises network management and standard the Internet control protocol, can with present wired internet application integration.The terminal use connects and how the access of device broadband networks realizes-wired or wireless-it be unclear that.This roof radio node not regulation wireless terminal user equipment low layer of communicating by letter with another radio node switches.And there are not integrated wireless and wireline equipment communication diversion.
Also have a kind of two-layer mesh network network on the market, it comprises that wireless mesh network backbone (backbone) and ad-hoc move scheme (for example product of mesh network Networks).Its notion is similar to the project (Daman project) of French Alcatel.This ad-hoc Wireless mesh technology is similar to above-mentioned ad-hoc scheme, the explained earlier mistake, and this technology does not have ability, and does not possess specific function and provide effective scheme to realize integrated platform of future generation.
Therefore, the telecommunications industry still needs to provide a kind of new system configuration and network access technique, makes it possible to construct the integrated platform that is applicable to that next bandwidth band is used.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of general access point, network communicating system and method are used to construct the integrated platform that is applicable to that next bandwidth band is used.
Aforementioned purpose of the present invention realizes that by a kind of network communicating system is provided this communication system comprises:
General access point;
The station of communicating by letter with general access point; And
The network infrastructure of communicating by letter with general access point.
In addition, aforementioned purpose of the present invention realizes that by a kind of general access point is provided this general access point comprises:
Network-Node Interface is used for carrying out interface with wired and wireless broadband network interface.
In addition, aforementioned purpose of the present invention realizes by the method that a kind of access point, network communication system is provided, network communicating system comprises general access point, stand, and network infrastructure, general access point comprises Network-Node Interface, is used for at least the first and second communication mode interfaces, and method may further comprise the steps:
Stand and general access point between with the first communication pattern communication;
Detection is arrived at a station and is broken away from from first communication pattern;
General access point is with second communication pattern monitoring station; And
Second communication pattern with general access point is communicated by letter with station foundation again.
In addition, aforementioned purpose of the present invention realizes that by the method that a kind of access point, network communication system is provided network communicating system comprises at least two general access points, a station, and a network infrastructure, and method comprises:
Stand and the first general access point communicate;
At the second general access point measuring station;
Transmit between the first and second general access points and detect;
Identification station signal will be lost in the first general access point;
The first general access point is to the stand transfer of the second general access point of second general access point suggestion;
Distribution station gives the second general access point.
By follow-up pin description related to the preferred embodiment, these purposes of the present invention and advantage, and other purpose and advantage all can become very obvious to those skilled in the art, preferred embodiment is explained in conjunction with each accompanying drawing.
Description of drawings
Fig. 1 shows according to the general access point (AP) that has of the present invention, and Wie AP just realizes the interconnection configuration of wireless and wired mesh network of wireless extensions mesh network wireless extensions LAN (Wie-mesh Wie-LAN) architecture.
Fig. 2 is a functional block, illustrates Wie-mesh network Wie-LAN node of the present invention, just the general structure of Wie AP.
Fig. 3 is a functional block diagram, illustrated to be installed in the building, and wired infrastructure of close user, and, can set up by Wie-mesh network Wie-LAN access point to the connection of broadband network.
Fig. 4 is a functional block diagram, shows integrated Wie AP, generates and seamlessly works in existing infrastructure, includes the mesh network of spider lines.
Fig. 5 is that block diagram shows, has gone out detection network, and its configuration constantly changes because of the reorientation of detector, and Wie mesh network Wie-LAN network of the present invention has routing capability, can after these variations take place, and the adjustment business provides on mesh network.
Fig. 6 is a functional block diagram, shows the general switching capability of Wie-mesh network Wie-LAN network of the present invention.
Fig. 7 is a functional block diagram, shows with the WiMax business Wie-mesh network Wie-LAN that integrates is provided network.
Embodiment
Referring to Fig. 1, the interconnection configuration according to wireless and wired mesh network of wireless extensions mesh network wireless extensions LAN (Wie-mesh network Wie-LAN) 100 architectures has been described, realize by general access point (AP) Wie AP.Wie-mesh network Wie-LAN 100 comprises a plurality of Basic Service Sets (BSS) 101 and 102, and each BSS comprises a plurality of end user stations, station 101a, 101b and the 101c among the BSS 101 for example, and station 102a, 102b and 102c among the BSS 102.In these end user stations each all is connected to general access point WieAP 111,112,113 or 114, for example the Wie AP 112 of the Wie AP 111 of BSS 101 and BSS 102.These Wie AP are by other Wie AP, and for example Wie AP 113 and Wie AP 114 further connect access band net 120, and the latter can be an existing AP or BAP(broadband access point), perhaps broadband node and/or other network infrastructure.
Wie AP 111,112,113 provides general being connected very flexibly with 114, and wherein each Wie AP is the access point of a wireless or wireline equipment.With regard to network, Wie AP 111,112,113 and 114 is another broadband ethernet nodes, and it has the 2nd layer/the 2nd, 3 layer exchange capacity, even the 3rd layer of routing capability.Therefore, Wie AP 111,112,113 or 114 is general access points of supporting wired and wireless type end user device simultaneously.Therefore, the terminal use can insert inner acquisition of LAN, and not need additional investment in any place any time.
In network infrastructure inside, Wie AP 111,112,113 or 114 (WieAP 111,112,113 and 114) each other can pass through wired connection or wireless connections, perhaps is connected to other Wie AP.Therefore, to traditional Local Area Network, perhaps network, Wie AP 111,112,113 and 114 is exactly another limit, Ethernet broadband and core node.It can carry out exchange/Route Selection (depending on that this technology adopts the 2nd layer or the 3rd layer or 2+3 layer) at communication (the 2nd layer or the 3rd layer of communication), sets up direct communication with adjacent Wie AP.Different with traditional LAN, the interconnection 115,116,117,118 and 119 of these Wie AP has formed a mesh network.This means that Wie-mesh network Wie-LAN can provide point to point link by Wie AP 111,112,113 or 114 between end user device.With the existing wireless access point, or even ethernet lan node difference, Wie AP interconnection 115,116,117,118 and 119 can realize by wired or wireless connections.In other words, mesh network compartment system (DS), perhaps or even Wie-mesh network Wie-LAN infrastructure can be to have mixed wireless and wired connection.Utilize this general concatenation ability, can be with Wie AP 111,112,113 or 114 easily integrated and be connected to existing ethernet lan infrastructure.This has protected the client again, and especially great amount of investment is set up the service provider of existing network infrastructure, Virtual network operator, and privately owned LAN owner.
According to this simple Wie-mesh network Wie lan interconnection, the circuit that can be established to existing ethernet topology 120 connects obtaining more high bandwidth, and direct integrated prior art.In addition, the bandwidth of Wie-mesh network Wie-LAN and retractility can also further increase along with the increase of Wie AP quantity in the network.All these abilities are all consistent with the requirement of integrated next generation network.Based on forming the motion of new standard in the future, for example at the IEEE 802.21 of wired and wireless seamless integrated and switching, at the IEEE802.11s of ESS mesh network network interconnection, and at the IEEE 802.11r of quick switching, this point is conspicuous.
Because Wie-mesh network Wie-LAN 100 provides the flexibility of supporting wired or wireless connection, and can set up point to point link, the Ethernet broadband can be inserted in the zone away from main Ethernet broadband infrastructure (metropolitan area network, core net, switch etc.) now, and required wired infrastructure investment is less.In addition, Wie AP 111,112,113 or 114 general connectivity make network infrastructure 120 simple and can dynamic expansion.By using the different connection performances that Wie AP 111,112,113 or 114 is had, the Wie AP with WAP (wireless access point) and wireline interface can dynamically provide with situation and adjust according to demand.This ability also makes can be progressively without broadband infrastructure in the zone newly developed of demand the unknown.Because circuit and network infrastructure are installed on a large scale, its output and demand may be less than expections, so this mode can reduce the investment risk of service provider and Virtual network operator.Simultaneously, still can provide broadband services and access to single or less user on service provider and the Virtual network operator effectively.
Different with the Networking Solutions ﹠ provisioned that adopts Ad-hoc or wireless mesh network, Wie-mesh network Wie-LAN communication Route Selection shown in Fig. 1 and exchange capacity are only carried out by Wie AP 111,112,113 or 114, rather than are carried out by end user device.Based on some reasons, the infrastructure that Wie-mesh network Wie-LAN 100 provides now is more stable.At first, this network infrastructure does not need to resemble frequent change Ad-Hoc and the wireless mesh network.Network topological change among the Wie-mesh network Wie-LAN 100 mainly is that this makes Wie AP can't effectively work for a long time because of node failure and user or detector reorientation.Finally, Wie-mesh network Wie-LAN 100 does not require that Wie AP 111,112,113 or 114 nodes have at a high speed and complicated processing and agreement.Secondly, do not need to resemble frequent renewal network topology Ad-Hoc and the wireless mesh network.Wie-mesh network Wie-LAN 100 is physically a kind of and the system simplified in logic, because Wie AP 111,112,113 and 114 flexibility that is provided and general connectivities, it is easier to operation, safeguards and reconfigure.
Referring to Fig. 2, show Wie AP, for example Wie AP 111,112,113 or 114 general structure.In the UNI side, Wie AP 111 provides and has supported just to be used for wireless terminal user equipment to AP at the platform of existing IEEE 802.11 series standards of Wi-Fi, and it adopts WiFi antenna 201b.It also has IEEE 802.3 series standards of wired ethernet, just at the catv terminal subscriber equipment broadband access of wireline interface.By providing access point and interface in the UNI side for existing wireless and catv terminal subscriber equipment, the user does not need to change or increase extra parts just can pass through Wie AP 111 accesses network.Terminal use's operation is unaffected, is protected at the customer investment that has end user device and system.
But, the present invention is not limited to WiFi and wired ethernet end user device, terminal use's computer for example, but can expand the interface that comprises other form, for example at adopting other WAP (wireless access protocol), the interface of the end user device of for example bluetooth, even emerging mobile technology.Can predict, network technology in the future, or even cell phone all can based on IP or with the IP compatibility, so Wie AP can carry out integrated exchange or Route Selection and switching, except others, it also supports the target at the IEEE 802.21 of integrated network and access scheme.This can be for based on mobile technology of future generation, and for example the following mobile network of CDMA2000 and UMTS provides integrated and access scheme.In addition, Wie AP 111 also can contain non-RF technology, includes but not limited to free space.
In the NNI side, for Wie-mesh network Wie-LAN 100 infrastructure adopt one group of management and agreement parts.They comprise IEEE 802.11s ESS mesh network connecting system 203a and relevant 802.11s ESS mesh network antenna 203b thereof.Also comprise optional IEEE 802.16 connecting system 204a and relevant WiMax antenna 204b thereof, and IEEE 802.3 wired accesses and interface 205.New agreement is supported compartment system or Wie-mesh network Wie-LAN network 100 functions.This comprises the communication of Wie AP, traffic carrying capacity is paid, Route Selection, reset, communicate by letter between EES, identical or different ESS goes up the soft handover between the Wie AP 111, the seamless branches of end user device from wired to wireless connections, and reverse seamless branches, access mechanism comprises that possible conflict is avoided transmitting or time division multiplexing inserts or the like.But its management will comprise the stratification selection of charging, safety and transmission control purpose etc.
Fig. 2 shows and comprises that WiMax IEEE 802.16 inserts and the 204a of management component.It makes Wie AP 111 can be connected to WiMax IEEE 802.16BS.WiMax IEEE 802.16 infrastructure will be served as backbone or core network in this case.On the other hand, Wie AP 111 will serve as the little BS of WiMax IEEE 802.16.
Make Wie AP to provide general integration capability, and the basic element of character that forms mesh interconnections is a replacement part 206 for user and network.For example, consider that being connected to network terminal user by the wire communication pattern determines to move or stroll, transfer to the wireless WiFi pattern of communication easily automatically, seamless and can not produce any broadband connection and interrupt.The terminal use can realize this point by Wie AP 111.In case wired access and interface 202 disconnect, replacement part 206 detects disconnection, immediately communication diversion is inserted parts 201a to wireless WiFi.This operation occurs in low layer, does not need high-rise the intervention, the perhaps management of the complexity between the main frame or webserver exchange.If this user determines to move or stroll neighbor bss S overlay area, Wie AP 111 originally can be easily and adjacent Wie AP, and for example 112 is mutual, the exchange handover information.In case confirm, former Wie AP 111 communicates exchange simply or selects to be routed to adjacent Wie AP 112 (as shown in Figure 1) for example at low layer, and the latter is with the broadband access of this specific end user of reprocessing.All these equally do not need with the high level of main computer unit complexity mutual.
Existing scheme does not have wireless and wired switching capability, because LAN is based on IEEE 802.3 agreements.It does not discern the ability that a kind of communication pattern switches to another kind of communication pattern, therefore, needs the terminal use to disconnect and utilizes different agreements to rebulid connection.In existing scheme, the AP of wireless terminal user equipment switches and must carry out on TCP (transmission control protocol) layer to AP.This describes on IEEE 802.11f.The high level of this requirement and main frame and the webserver is mutual.Consequently, carry out emerging application at present the terminal use, for example in real time and during multimedia service, existing scheme is slower, and is not suitable for.It also limits switching and can only occur among same ESS or the DS.But above-mentioned example is a kind of scheme and the agreement that realizes quick and general switching.Other fast protocol also can be realized, and cooperate with replacement part 206.
The ability that realizes mesh interconnections makes Wie-mesh network Wie-LAN 100 to recover from network failure.This be because, Wie-AP interconnection 115,116,117,118 and 119 offer network (wired or wireless basic infrastructure) a plurality of separate fully or half point from the path.This makes that communication can be switched or be routed to different paths when connection or node failure.
Notice except switch and general integrated, replacement part 206 is also carried out and is resetted.For example, if Wie AP 111 faults, network can be routed to backup path, and can not cause the interruption of another Wie AP 112.
In addition, replacement part 206 provides high-performance and the low-loss ability kept for Wie AP 111, because it has avoided communicate by letter Route Selection and transmission in decay environment and areas of congestion.At present, a lot of at the research of multiple-input, multiple-output (MIMO) and smart antenna in institute and research institution.These new immature technology often are considered to " costliness and poor efficiency ", and they are used for improving wireless network performance and loss under the decay environment.But Wie AP network 100 provides a kind of cheap and more efficiently scheme of dealing with problems.This be because, do not use many antennas, Wie AP just can be service selection and pathfinding best link or the path to next Wie AP of arrival.
In case notice replacement part 206 business or packet exchange are arrived suitable access parts, this packet will insert the defined access protocol format of parts according to this.
As shown in Figure 3, wireline interface also can be used for wired connection Wie AP, to dedicated lan, and just wired infrastructure, for example X﹠amp; Y company provides to have the more broadband network access of wide bandwidth, supports long-term business demand and a large number of users all quite clear and definite also secure zone in the long time period.Fig. 3 shows the Wie AP 301a-j that is connected to cable network 302 by wired infrastructure 303.Near wired infrastructure 303 zone, Wie-mesh network Wie-LAN can be provided infrastructure neatly, because the installation of this access node does not need expensive installation, can be used to provide various Wie-mesh network Wie-LAN to connect, and irrelevant with the network insertion that is provided to wired application, the two is also deposited.
As shown in Figure 4, simply with Wie AP 402a-1 by Ethernet switch 403, perhaps other similar interface is directly connected to existing line tower foundation facility, existing line tower foundation facility 401 also can with Wie-mesh network Wie-LAN network integration of the present invention.Particularly, Wie AP can be wired to existing wired infrastructure 401, thereby WieAP and existing install directly integrated, protection client's investment are provided.The Wie-mesh network has increased the redundancy in bandwidth and message Route Selection path.Simultaneously, the restoring force of system is improved.
As shown in Figure 4, Wie AP dynamic service providing capability is applicable to provides the zone of broadband access to user's request the unknown, and for example one newly provides professional zone, and wherein number of users is not determined as yet.It also is applicable to number of users zone seldom; For example, the resident less is ready the user that networks as yet not and in visible future.In addition, the flexible business of Wie AP provides and can also be used for the occasion that user's request changes.Variation can be owing to user another the new flourishing city etc. of moving.When this thing happens, by adjusting Wie Ap simply, the scale of Wie-mesh network Wie-LAN can easily be stretched, and can not cause too many loss to investment, and aforementioned adjustment to Wie AP does not have the restriction of physics or line tower foundation facility.
Like this, Wie AP can utilize network can dynamically change the ability of message Route Selection, and Wie-mesh network Wie-LAN network of the present invention also has following flexibility: even the terminal use has moved to the another location, it still can follow and redeploy business.The mesh network size can easily be adjusted along with the increase and decrease of number of users, and can not cause investment loss.
As shown in Figure 5, another advantage of Wie-mesh network Wie-LAN network is that it is convenient to the integrated detector business.Detector communication is point-to-point, and its network can extend to very big zone.Because in daily life, the remote probe device is more and more important, and the heterogeneous networks that range detector is used may be with high costs and complicated.In addition, detector position can change along with the time.Wie AP interconnectivity and exchange/routing capability can provide detector required communications platform.In addition, its position can dynamically change, and can too not depend on physical circuit.In addition, Wie AP business provides the complete wireless coverage that itself can be provided to detector, and wired access.The detector network can become the Virtual Private Network that passes Wie-mesh network Wie-LAN, and the latter just can Long-distance Control.
The dynamic service of Wie AP provides the detector that also is applicable to networking to use, and this point is extremely important to the development in future of next generation communication system.Recognize that next generation network not only should be the long-range interchange bearer service of user, and a lot of other business are arranged, comprise emerging fast detector communication, extremely important.The quantity of intelligence and no artificial detecting devices increases gradually.Undoubtedly, certain network plan need be made certain equipment, it can be integrated into detector communication the network at the design of telecommunication purpose.Next generation network also needs a node, and it can be along with the reorientation (position of detector device may change in time) of detector is disposed and redeployed.This node needs one of key property of supporting detector communication subsequently, is exactly point-to-point.Therefore, Wie AP of the present invention and Wie-mesh network Wie-LAN configuration provides a kind of in time and effectively scheme.In addition, detector device is various informative, from wireless to being wiredly connected to Network Access Point, the type of tube apparatus or connection not, Wie AP has general connectivity configuration, in order to the network enabled access demand.The operability of broadband network has been expanded in the flexibility of Wie AP, in order to support new point-to-point protocol, does not need Route Selection, exchange and interconnection configuration, still has before these configuration purpose and waits to define.Signal transmission for detector application or other type is used, and has eliminated the inflexible demand by the wired connection accessing to wide band network.
Referring now to Fig. 6,, wherein the user is at first by the communication of wireline equipment foundation through this network.User 601 goes to the another location subsequently peremptorily, but still wishes to keep this communication.In order to keep communication not to be interrupted, user 601 must switch to wireless mode.User 601 can't utilize existing network service, because owing to multiple limiting factor, do not have this seamless and handover scheme that carry out automatically, and independent access point is arranged between wired and radio communication.If adjacent AP belongs to same ESS or distributed system (DS), existing program can only provide wireless switching, can only be because switch by high-rise, and for example the TCP layer is finished.Existing program is slower, is not suitable for the application very high to time requirement.In addition, move to another zone from a zone and need the WLAN wireless coverage.Existing communication system also is subject to LAN physical infrastructure or circuit compartment system at present, and AP is in the availability of follow-up location.Different with conventional art, the Wie-mesh network Wie-LAN that realizes by Wie AP can dispose at diverse location easy, flexible and strategicly.It can provide complete wireless coverage at interior of building, and wired access, and is not subjected to physical restriction.In addition, network need be at wireless and independent access device line termination unit.Wired and radio access interface is positioned at single Wie AP inside.Therefore, can easily detect from wired disconnection at low layer, insert wirelessly, communication promptly switches to wireless mode.
Therefore, in the scheme that proposes, use the general switching of switching part easily to realize and promptly finish at low layer (just the 2nd layer or the 3rd layer).A kind of possible method, for example, when the terminal use extracted its wired connection, Wie AP detected disconnection immediately, and the business of going into that will send to this terminal use is stored in the data buffer.It inserts parts and this terminal use's wireless signal of WiFi antenna AM automatic monitoring by WiFi (IEEE 802.11a/802.11b/802.11g/802.11n) subsequently.This terminal use discerns by its Internet protocol (IP) address.When WiFi (IEEE 802.11a/802.11b/802.11g/802.11n) access parts were finished the Radio Link that is established to the terminal use, replacement part comprised that immediately by the WiFi reciprocal exchange of business business of those buffer memorys is given this terminal use.
Equally, when terminal use decision from wireless when changing to wire communication, the Wie AP replacement part that detects wired connection and terminal use IP address is communicated by letter with the interface unit service switchover by IEEE 802.3 accesses immediately.
Wireless switching also is seamless, and very fast.This is because Wie AP can detect the existence of its adjacent Wie AP by the direct link of setting up between the Wie AP, still is different ESS no matter Wie AP is positioned at same ESS.Switch by operation exchange/Route Selection (the 2nd layer/the 3rd layer/2+3 layer) is realized to adjacent Wie AP fast, do not need upper-layer protocol.A kind of possible method, for example, when end user device had moved to the BSS overlay area of adjacent Wie AP, the latter detected the existence of this end user device, reported to the former Wie AP of this end user device immediately.Former Wie AP and new or adjacent Wie AP directly carry out Handshake Protocol for possible switching.If each Wie AP belongs to different ESS, it can also send to the handshake process request its host server, and the latter may have the right to determine whether switch.In case agree that former Wie AP directly switches to the end user device communication service new Wie AP.
Wie-mesh network Wie-LAN network of the present invention provides a kind of platform, can easily integrated wired IEEE 802.3 and the switching of IEEE 802.11 between inserting, it is consistent with IEEE 802.21 standardization effort on the horizon, as in the future integrated other wireless and platform cable technology, it comprises the quick switching by L2/L2+L3, and the latter is consistent with the effort that the formulation work of IEEE 802.11r standard is done.
Fig. 7 shows Wie-mesh network Wie-LAN can be used to also realize that WiMax disposes, and does not need the extra expensive base station of investing and the WiMax standard device of end user device in order to the scope of expansion WiMax.WiMax is the part of IEEE 802 families.It is to make data to cross the wireless technology that long distance realizes wireless transmission from cable modem.Frequency range scope in MAN that IEEE 802.16 standards cover is 2GHz and 11GHz.It contains higher broadband wireless access, therefore, is suitable as the backbone of some IEEE 802.11hotspot.The WiMax Radio Link is applicable to low time delay application, for example speech and video.It provides long apart from connectivity, does not require to be direct sighting distance (LOS) between user terminal and WiMax base station (BS).Its high bandwidth is supported many users' high-speed communication.WiMax can support mesh network to dispose in the future, and therefore, it can provide broadband access for the community away from the line tower foundation facility.
But the wireless extension ability of the long distance of WiMax can expand to 50 kilometers radiuses.If WiMax directly provides service for the terminal use, its cost may be very high because end user device must with the WiMax transceiver communication, this needs identical ability, just transmitting power could arrive the WiMax BS that is positioned at outside 50 kilometers.But Wie AP can serve as the little BS of WiMax, and the terminal use does not just need this new WiMax technology of additional investment could obtain broadband access like this.Wireless terminal user just keeps simply and uses its low-cost short distance WiFi parts to obtain wireless access.The low cost that Wie-mesh network Wie-LAN will serve as the connection of WiMax is connected part.In this way, it provides the flexibility that realizes dedicated lan infrastructure, and wherein WiMax can't realize in the past.Wie AP 701a-q can be designed to be wirelessly connected to the WiMax base station.The WiMax base station can provide to very economical key platform.The reduction of cost is because Wei-mesh network Wie-LAN can have the zone of certain distance to dispose in distance core or metropolitan area network physical circuit infrastructure.WiMax is both economical when the wireless backbone infrastructure of close Wie-mesh network Wie-LAN is provided.Wie AP can with the WiMax interface, insert so that broadband internet to be provided.
Therefore, Wie-mesh network Wie-LAN network of the present invention provides the wireless and wired lan of expansion to surmount ability, keeps validity, simplicity and the operability of ethernet lan in short distance simultaneously.The present invention is general inserts and attachable Wie AP makes and geographically extendible network and can realize by low-cost LAN, and with the interconnection of short-distance wireless transceiver, or be interconnected to other farther distance.The expansion of network and installation can realize easily that therefore, the scale adjustment of network is also relatively easy because do not need on the whole network area that cable is installed or physics wired.Because with the distance of existing infrastructure can be far away, so extension of network will make things convenient for manyly to the zone that can't insert in the past.Because low-cost and installation easily increases and installs and can dynamically finish at business demand.Can easily realize by the wired and wireless connections configuration that Wie AP is provided with the compatibility of existing infrastructure, and message or Route Selection by Wie AP the 2nd layer or 2+3 layer or the 3rd layer of realization, rather than depend on terminal use's equipment.Like this, disclosed herein is a kind of more efficient, restorative better network, wherein high-quality and professional private network reliably or Virtual Private Network can be realized by wired or wireless interconnection more widely.Wireless mobility and the quick automatic and intelligent switching of low layer can realize neatly, thereby make the user that more more options ground use Network continuously can be arranged on wideer geographic area.
Although described the present invention in conjunction with preferred implementation, need to understand, thisly openly should not be construed as restrictive.To those skilled in the art, after having read above-mentioned open part, various changes and modifications are conspicuous beyond doubt.Therefore, the appended claim book is appreciated that and contains all changes and improvements within the spirit and scope of the present invention.
Claims (42)
1. network communicating system comprises:
General access point;
The station of communicating by letter with described general access point; And
The network infrastructure of communicating by letter with described general access point.
2. according to the network communicating system of claim 1, wherein:
Described general access point comprises Network-Node Interface (NNI), is used for carrying out interface with wired and wireless broadband network interface.
3. according to the network communicating system of claim 1, wherein:
Described general access point comprises replacement part.
4. according to the network communicating system of claim 1, wherein:
Described general access point comprises replacement part, in order to exchange the 2nd layer of message and be that the 3rd layer of message is selected route in described network infrastructure.
5. according to the network communicating system of claim 1, wherein:
Described general access point comprises replacement part, in order to the 2nd layer of message of exchange in described network infrastructure.
6. according to the network communicating system of claim 1, wherein:
Described general access point comprises replacement part, in order to be the 3rd layer of message selection route in described network infrastructure.
7. according to the network communicating system of claim 1, wherein:
Described general access point comprises User Network Interface, and described User Network Interface comprises IEEE 802.11 wave points with described station interface, and IEEE 802.3 wireline interfaces with described station interface.
8. according to the network communicating system of claim 1, wherein:
Described general access point comprises data buffer.
9. according to the network communicating system of claim 2, wherein:
Described NNI comprises radio network interface, is used for and the second radio network interface interface, and a wired network interface, be used for carrying out interface with second wired network interface.
10. according to the network communicating system of claim 2, wherein:
Described NNI comprises radio network interface, is used for carrying out interface with second radio network interface of wireless extensions mesh network and wireless extensions LAN (Wie-mesh network Wie-LAN) network.
11. the network communicating system according to claim 1 also comprises:
At least one second general access point is as the interface of described station and described general access point.
12. the network communicating system according to claim 1 also comprises:
At least one second general access point, as the interface of described station and described general access point, one of wherein said general access point keeps communicating by letter with the mesh network network.
13. the network communicating system according to claim 1 also comprises:
At least one second general access point serves as the interface of described station and described general access point, and one of wherein said general access point keeps communicating by letter with Local Area Network.
14. a wireless extensions mesh network wireless extensions LAN (Wie-mesh network Wie-LAN) network system comprises:
A plurality of wireless extensions access points (Wie AP) comprise User Network Interface (UNI), are used for and wired and wireless user terminal equipment interface;
Each described Wie AP also comprises Network-Node Interface (NNI), is used for and wired and wireless broadband network interface interface;
The mesh network network, by with one of described Wie AP interface, be connected to described Wie-mesh network Wie-LAN; And
LAN, by with one of described Wie AP interface, be connected to described Wie-mesh network Wie-LAN.
15. a general access point comprises
Network-Node Interface (NNI) is used for carrying out interface with wired and wireless broadband network interface.
16. according to the general access point of claim 15, wherein:
Described general access point comprises replacement part.
17. according to the general access point of claim 15, wherein:
Described general access point also comprises replacement part, in order to exchange the 2nd layer of message and be that the 3rd layer of message is selected route in described network infrastructure.
18. according to the general access point of claim 15, wherein:
Described general access point also comprises replacement part, in order to the 2nd layer of message of exchange in described network infrastructure.
19. according to the general access point of claim 15, wherein:
Described general access point also comprises replacement part, in order to be the 3rd layer of message selection route in described network infrastructure.
20. according to the general access point of claim 15, wherein:
Described general access point comprises User Network Interface, and described User Network Interface comprises IEEE 802.11 access interfaces with described station interface, and IEEE 802.3 wireline interfaces with described station interface.
21. according to the general access point of claim 15, wherein:
Described general access point also comprises data buffer.
22. according to the general access point of claim 15, wherein:
Described NNI comprises radio network interface, is used for carrying out interface with second radio network interface, and a wired network interface, be used for carrying out interface with second wired network interface.
23. according to the general access point of claim 15, wherein:
Described NNI comprises a radio network interface, is used for carrying out interface with second radio network interface of wireless extensions mesh network and wireless extensions LAN (Wie-mesh network Wie-LAN) network.
24. the method for an access point, network communication system, described network communicating system comprises general access point, stands, and network infrastructure, described general access point comprises Network-Node Interface, is used for said method comprising the steps of with at least the first and second communication mode interfaces:
Between described station and the described general access point with the first communication pattern communication;
Detecting described station breaks away from from described first communication pattern;
Described general access point is monitored described station with the second communication pattern; And
Described second communication pattern with described general access point is communicated by letter with the foundation of described station again.
25. the method according to claim 24 also comprises:
For described station data cached.
26. the method according to claim 24 also comprises:
For described station data cached; And
Send described data to described station with described second communication pattern.
27. the method according to claim 24 also comprises:
The Internet protocol address at the described station of identification in described first communication pattern.
28. the method according to claim 27 also comprises:
By described second communication pattern, direct data had the described station of described Internet protocol address.
29. according to the method for claim 24, wherein:
In described first communication pattern, utilize the wireline interface of described general access point to connect described station and described general access point;
In described second communication pattern, utilize the wave point of described general access point to connect described station interface and described general access point.
30. according to the method for claim 24, wherein:
In described first communication pattern, utilize the wave point of described general access point to connect described station and described general access point;
In described second communication pattern, utilize the described station of wired connection and the described general access point of described general access point.
31. according to the method for claim 29 or 30, wherein:
Described wave point is IEEE 802.11 wave points;
Described wireline interface is IEEE 802.3 wireline interfaces.
32. the method according to claim 24 also comprises:
The replacement part that is included in described general access point exchanges the 2nd layer of message and is that the 3rd layer of message is selected route in described network infrastructure.
33. the method according to claim 24 also comprises:
The exchange portion that is included in described general access point exchanges the 2nd layer of message in described network infrastructure.
34. the method according to claim 24 also comprises:
The replacement part that is included in described general access point is that the 3rd layer of message is selected route in described network infrastructure.
35. the method according to claim 24 also comprises:
At least one second general access point is used for and described general access point interface as described station.
36. the method according to claim 24 also comprises:
At least one second general access point is used for and described general access point interface as described station, and one of wherein said general access point keeps communicating by letter with the mesh network network.
37. the method according to claim 24 also comprises:
At least one second general access point is used for and described general access point interface as described station, and one of wherein said general access point keeps communicating by letter with Local Area Network.
38. the method for an access point, network communication system, described network communicating system comprise at least two general access points, stand, and network infrastructure, described method comprises:
The described station and the first general access point communicate;
Detect described station at the second general access point;
Transmit described detection between the described first and second general access points;
Discern described station signal and will be lost in the described first general access point;
The described first general access point is to the transfer of the described described second general access point of standing of the described second general access point suggestion;
Distribute described station to give the described second general access point.
39. the method according to claim 38 also comprises:
By the described first general access point is that described station is data cached.
40. the method according to claim 38 also comprises:
By the described first general access point is that described station is data cached; And
Send described data to described station by the described second general access point.
41. the method according to claim 38 also comprises:
The described first general access point is discerned the Internet protocol address at described station.
42. the method according to claim 41 also comprises:
Utilize described Internet protocol address, the described second general access point is with the described station of direct data.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009043267A1 (en) * | 2007-09-28 | 2009-04-09 | Huawei Technologies Co., Ltd. | Wireless broadband access network, device, access method |
| CN101977429A (en) * | 2010-11-10 | 2011-02-16 | 闵浩 | Micropower wireless communication network system and implementing method thereof |
| CN105531971A (en) * | 2013-09-16 | 2016-04-27 | 高通股份有限公司 | A user interactive application enabled gateway |
| CN107566188A (en) * | 2013-09-30 | 2018-01-09 | 搜诺思公司 | Method and apparatus for identifying wired connection |
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2004
- 2004-10-21 CN CN 200410067353 patent/CN1764134A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009043267A1 (en) * | 2007-09-28 | 2009-04-09 | Huawei Technologies Co., Ltd. | Wireless broadband access network, device, access method |
| CN101399727B (en) * | 2007-09-28 | 2012-04-18 | 华为技术有限公司 | Wireless wideband access network, device and access method |
| CN101977429A (en) * | 2010-11-10 | 2011-02-16 | 闵浩 | Micropower wireless communication network system and implementing method thereof |
| CN101977429B (en) * | 2010-11-10 | 2013-06-19 | 闵浩 | Micropower wireless communication network system and implementing method thereof |
| CN105531971A (en) * | 2013-09-16 | 2016-04-27 | 高通股份有限公司 | A user interactive application enabled gateway |
| CN105531971B (en) * | 2013-09-16 | 2019-05-14 | 高通股份有限公司 | Enable the gateway of oolhiu interactive user application |
| CN107566188A (en) * | 2013-09-30 | 2018-01-09 | 搜诺思公司 | Method and apparatus for identifying wired connection |
| CN107566188B (en) * | 2013-09-30 | 2020-08-11 | 搜诺思公司 | Method and apparatus for identifying wired connections |
| US11005940B2 (en) | 2013-09-30 | 2021-05-11 | Sonos, Inc. | Network topology based on a useful wired connection |
| US11805174B2 (en) | 2013-09-30 | 2023-10-31 | Sonos, Inc. | Transition between network connections |
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