CN1852617B - Network technology for accelerating optical outburst exchange resource subscription using wireless optical communication - Google Patents
Network technology for accelerating optical outburst exchange resource subscription using wireless optical communication Download PDFInfo
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Abstract
Preengagement region is designed and constructed around tangent method. Bias time is setup by using bias time sub module. Radio laser signal BHP is sent to boundary chain of radio laser comm. from boundary node interface. Then, BHP is passed and processed through following steps: being received and processed by radio light core node; passing through multicast of core link of radio laser comm. to core node interface of boundary Burst route process; using core node processes BHP, and exchanges information at ports between neighboring core nodes etc. to establishes connection rapidly. The method speeds up operation for preengaging resources to reengagement region in high quality. Comparing with switching network of light outburst in pure fiber, the invention reduces bias time, and time of using resources by BHP.
Description
Technical field
The invention belongs to optical communication technique and realization field thereof, its enforcement relates to optical fiber communication, wireless laser communication, relating to optical-fiber network cooperates related network elements to reduce light burst-switched (Optical Burst Switching by the wireless optical core node, OBS) unidirectional reserve resource required time etc. is handled cost, relate to the reservation territory, relate to high resource utilization and high quality-of-service that Networks of Fiber Communications and wireless laser communication network integration operation brings.
Background technology
Dense wave division multipurpose (Dense Wavelength Division Multiplexing, DWDM) optical transmission provides unprecedented enormous bandwidth, along with the maturation of DWDM technology and relevant device is used, for overcoming electric exchange capacity bottleneck, reduce network cost, improve network flexibility, sensitivity, survivability, business realizes being exchanged into for recent research focus at photosphere.The light exchange comprises light path exchange (wavelength route), light packet switching, light burst-switched.
Along with the explosive growth of Packet Service, optimize the inexorable trend of supporting Packet Service to become the future network development.The light path exchange is connection-oriented circuit switching in the light territory, is a kind of oarse-grained exchanged form, has realized practicability at present.But optical wavelength exchange is that optical wavelength is monopolized with each wavelength unit in return, and low, the very flexible of switching bandwidth utilance supports that the performance of sudden extremely strong IP operation is not good.The light packet switching in the light territory towards disconnected " storage one transmit " exchanged form, statistic multiplexing network channel bandwidth resources etc., its cross-over unit is the light grouping of high-speed transfer, bandwidth usage efficient the best, it is the ideal form of light exchange, but because it realizes that technology such as device such as essential optical buffer and phototiming are very immature, the support technology of packet switching also has many key points to wait to break through.Light burst-switched granularity is between the wavelength and fine-grained grouping of coarsegrain, technology realizes simpler, networking capability is flexible and efficient, compromised the well performance requirement of supporting packet switching in the light territory and the realization difficulty of supporting packet switching in the light territory, market prospects light, recently extremely industry is paid close attention to, and sees Table one.
| Exchanged form | Bandwidth availability ratio | Time delay | The requirement of light buffer memory | The exchange granularity | Complexity | The Packet Service fitness |
| The light path exchange | Low | High | Do not have | Slightly | Low | Low |
| The light packet switching | High | Low | High | Carefully | High | High |
| The light burst-switched | Medium | Lower | Lower | Moderate | Moderate | Higher |
Table one
The burst group of being dressed up by some IP packet group (Burst) is the basic cross-over unit in the OBS network, the packets headers of each Burst, be its control grouping (Burst Header Packet, BHP) one by one corresponding to a bursty data grouping, the physical channel of the two is separate, in dwdm system, the BHP transmission takies the part wavelength, and the bursty data transmitted in packets then takies all other wavelength.BHP comprises the bursty data transmitted in packets and exchanges necessary control information, by fringe node appropriate offset time (offset time) is set, it is the departure time interval of BHP and corresponding bursty data grouping, BHP sends prior to the bursty data transmitted in packets, in core node is transformed into electric territory, according to its contained bursty data grouping time of advent, duration, destination address etc., carry out that output wavelength reservation, route are judged, the control optical switching matrix, upgrade reserved resources operation such as BHP corresponding data territory.Make that its required passage configures when the bursty data grouping arrives, thereby realize the transparency transmission of light numeric field data.Offset time is relevant with priority, and its minimum value transmits whole process not go to its corresponding BHP front be restriction to ensure that bursty data is grouped in.
As shown in Figure 1, pure optical fiber OBS network is made of the fringe node and the core node of optical fiber by the link of DWDM technology, and the light burst-switched is finished by the operation of node series.The source fringe node is finished: send in advance outside the generation of BHP and the band on control channel, the buffer memory of IP grouping, encapsulate, be assembled into the light burst packets, and the light burst packets behind offset time necessarily, on data channel, mail to corresponding BHP for its finish reserved resource in abutting connection with operations such as core nodes.Core node is finished: according to the control information configuration light path of BHP, to operations such as the burst packets that arrives exchange.The purpose fringe node is finished and is split back operations such as IP grouping with successfully transmitting the burst packets that arrives.
Resource reservation is the first step of OBS, sending a Setup message by BHP finishes, how each listed scheme of table two judges the beginning and the end of bursty data grouping, how to determine that respectively there are its characteristics the aspects such as time that the bursty data grouping takies node resource.Wherein, Explicit setur and explicit release scheme when Setup message arrives, disposes Switching Module immediately accordingly, comprise to the setting of cross matrix and to the reservation of output wavelength, discharge resource when receiving Release message.The time started of directly Setup message being used as the bursty data grouping time of advent is the concluding time of being used as the bursty data grouping time of advent of Release message, with the actual resource time error maximum that takies of bursty data grouping; And Estimated setup and estimated release scheme, precision is the highest, is used for pure wired OBS network, its transmission medium is an optical fiber, determine each exchcange core node by certain routing algorithm after, BHP sends to adjacent core node through the input fringe node, by near extremely far away, until order
Table two
Core node, preengage Burst successively at the required exchange resource of each node, to connect.As shown in Figure 2, the core node number of BHP reserve resource is T
H, burst length is L
B, be used for j core node (1≤j≤T
H) control and treatment time cost is d
j, then required offset time (is designated as T
Offset)
Send out packet and leave node constantly, be i.e. T
i+ L
BDischarge, referring to Fig. 3.
Burst may successfully exchange prerequisite condition: corresponding BHP for its exchange be transmitted in must through node all successfully preengage resource requirement.Otherwise, current bursty data grouping will be dropped, and as seen, resource reservation is the key of light burst-switched.The light burst-switched only takies the time of bursty data of node resource grouping, connects to set up the feedback information that needn't wait for that resource reservation is whether successful, postpones lowlyer, and this is the basis of high channel utilance just.
In pure optical fiber OBS network, required minimum offset time is
The corresponding cost etc. of handling has brought delay problem; The Internet resources that can be used for the grouping of BHP and corresponding bursty data thereof are limited, especially simultaneously at each BHP of a core node reserve resource randomly from each fringe node, competition (contention) has worsened network performance, make that resource utilization etc. is extremely low, to this, existing solution in the pure optical fiber OBS network technology, usefulness is limited, and may further aggravate delay problem.Network is when providing service, and the level of resources utilization and service quality (QoS) etc. are undesirable, have greatly reduced the reasonability of OBS network mechanism and the application prospect of OBS network, must be properly settled.The break-through point is exactly when handling resource reservation in the mode of unidirectional processing, raises the efficiency, and when ensureing the reservation quality, reduces costs such as required time as far as possible.
The speed that the resource reservation scheme realizes depends on that each node on the transfer path obtains the mode and the speed of BHP relevant information, processing control information.The present invention has greatly improved the network efficiency height by the reservation territory operation of Networks of Fiber Communications and wireless laser communication network integration operation.The technical foundation of OBS network utilisation wireless laser communication is as follows;
In recent years, the optical communication industry is developed wireless laser broadband service equipment energetically, make carrier wave, make the wireless laser communication of transmission medium with free space with light, its communication distance, near to hundreds of rice, as far as thousands of kilometers, and, the wireless laser communication cost is far below optical fiber communication, excellent performance, cost performance height.For example: Lucent company has just realized the wireless laser data communication of 160Gbps in calendar year 2001; Nineteen ninety-five, two satellites that belong to the U.S. and Japan have respectively successfully carried out data communication on the distance of nearly 40000km; In the same year, first generation atmospheric flight platform wireless laser communication machine (lasercom) communication distance of Trex Enterprises company reaches 150km or the like; 1996, America and Japan two countries carried out reaching the wireless laser communication experiment of trimestral satellite and ground station; Deutschen Zentrums fur Luft-und Raumfahrt e.V. successfully carried out the atmospheric advection layer in 2005 to ground 10Gbps error-free data transmission test.NASA, JPL and MIT are that the wireless laser communication distance of the mars exploration airship exploitation of lift-off in 2009 reaches 1.4 hundred million kilometers; From sixties end so far, we are engaged in the wireless laser communication technology always and realize research, obtain some national achievements of rewarding.
Wireless laser sender (electro-optical conversion), wireless laser receiver (light-to-current inversion), wireless laser communication network exchange technology and (for example: the outer attitude of satellite control of the atmosphere of the control of the corona ion propeller atmospheric radio wave communications platform attitude of the U.S., various countries), ATP (promptly catch, follow the tracks of, aim at) technology and adaptive technique etc. are point-to-point wireless laser communication link, for the wireless laser communication network development is established good foundation be implemented in wireless laser node, unsettled radio communication platform attitude control technology and combining wireless realization of Communication thereof.
Wireless laser communication bandwidth ratio Micron Technology fibre, similar operation fiber-optic communications traffic can be provided, wireless laser communication and optical fiber communication have a lot of common parts, the technology of existing fiber communication network and realization thereof, for example: IP is adaptive, the light burst-switched, the light packet switching, the wave length routing technology, optical track technology etc., wireless laser communication all can be supported.Simultaneously, the constraint of wire medium has been broken away from the transmission of wireless laser communication, thereby the not available topological intuitive of wired optical communication, flexibility and mobility have been had, and the convenience made of modularized equipment, make wireless laser communication possess not to be subjected to constraint such as environment and the advantage pursuing the optimization supporting business, efficiently use networking such as the communication resource to communicate by letter.Simultaneously, to optical fiber, the light propagation rate is about about 200km/ms, and to wireless laser communication, the light propagation rate is about 380km/ms, and as seen, the speed of optical transmission information in the wireless laser communication link is much larger than its speed in optical fiber link.And wireless laser node processing speed is not less than Fiber Node, and have single treatment task with the pure optical fiber OBS network equipment, the functionality advantage of integral intelligent spatial domain segment processing, band rice the flexibility of handling, saved resource, dwindled and handle free time etc.Fast wireless laser communication network integration intelligently massively sending control based on the removable agency of unique physical topological sum, agreements such as support GMPLS traffic engineering act on the Burst route,, each business unit very little to each business unit data volume is approximately BHP isometric, that need handle in electric territory and handles, according to the traffic carrying capacity size, the size of configuration node disposal ability can make that each node processing transmitting time cost is of slight difference.Thereby, wireless laser communication has just had advantageous advantage aspect the treatment effeciency being used to improve, have the great potential that reduces offset time and reduce costs such as relevant treatment time, wireless laser communication will bring quantum jump for progress of OBS network technology and application etc.
Summary of the invention
The present invention relates to wireless laser communication and quicken light burst-switched resource reservation: reservation adaptive system in territory and agreement; Reservation domain structure and corresponding supporting technology; Reservation territory fringe node interface; Reservation territory core node interface; The wireless optical core node; The mode and the corresponding operating mechanism of the support resource reservation of reservation territory; Aspect contents such as reservation territory resource allocation mechanism and realization thereof.
The present invention has provided wireless laser communication and has quickened the technology and the realization thereof of light burst-switched resource reservation.The present invention is used for unidirectional resource reservation, has the advantages that to promote service speed greatly; In addition, the invention enables similar Networks of Fiber Communications of quality and wireless laser communication network integration operation, it is integrated work under same edge resource distribution module control that linear light and wireless laser resource allocation are for example arranged, strengthened business support, improved the speed of service, operation robustness and high-quality robustness the OBS network.The present invention's Pi greatly benefits the flexible expansion that improves fiber optic network resource utilization, QoS supportability and OBS network etc.
One, be convenient narration and explanation, be defined as follows:
Visual transmission restriction: when the laser carrier of wireless laser communication is propagated in free space, if being subjected to barrier stops, will be absorbed and scattering, thereby, just can't be effectively entrained message transmission to the destination, therefore, the prerequisite that receiving-transmitting sides carries out efficient communication is exactly that their post a letter port and collection of letters port must not be linked to be straight line with stopping, and promptly wireless laser communication is subjected to visual transmission restriction.
The fringe node interface: be that each fringe node sends the executor of BHP to the wireless optical core node, this interface finally is transformed to the wireless laser signal with the resource reservation message of fringe node decision-making just, concurrently goes in the wireless laser communication edge link.Its main functional modules comprises: edge ATP module, the quick self-adapted module in edge, edge wireless laser electrooptic modulation module, edge wireless laser form module, the edge wireless laser closes mode piece, edge gain control module, edge wireless laser resource reservation signal emission module.
Fringe node: promptly include the OBS network edge node of fringe node interface, be generation and the sender of Burst.
The wireless optical core node: for the BHP of reception fringe node transmission with the wireless laser is the implementer of carrier wave multicast BHP, quickens the key of the unidirectional resource reservation of OBS.The wireless optical core node is three-dimensional empty separation structure, can be divided into and receive BHP independent community, treatments B HP entity, multicast BHP independent community, the spatial distribution of these three functional entitys and each functional module has certain freedom, promptly possesses certain independent activity space separately.Its main functional modules has: core edge ATP module, core ATP module, the quick self-adapted module in core edge, the quick self-adapted operation of core, core wireless laser resource reservation signal receiving module, core wireless laser partial wave module, core wireless laser photoelectricity modular converter, core wireless laser controlling logic module, core wireless laser node resource distribution module, core wireless laser electrooptic modulation module, core wireless laser forms module, core wireless laser composite wave module, the three-dimensional switching regulator exchange of core wireless laser multicast array, the core gain control module, multiast radio laser resource reservation signal emission module.
The core node interface: in be contained in OBS network core node, be responsible for to receive wireless optical core node multicast BHP, convert it to the treatable signal of fiber optic core node and send into corresponding optical fiber core node processing module.Main functional modules comprises: additional ATP module, additional quick self-adapted module, additional wireless laser resource reservation signal receiving module, coupling module.
Core node: for including the core node interface and receive and treatments B HP, and be responsible for the OBS network core node that exchange light bursty data divides into groups by interface.
The wireless laser communication network: formation is preengage the relevant wireless laser communication part in territory with pure Networks of Fiber Communications is complementary, comprises fringe node interface, wireless light communication core node, core node interface etc.
The wireless laser communication link; Press the planning of wireless laser communication network organizing, wireless laser communication that can efficient communication is sent out and is received physics and link the right communication path of port, be that laser beam that the port of posting a letter of wireless laser communication sends can pass through unobstructed visual free space between itself and wireless laser communication collection of letters port, and can effectively carry required transmission information and arrive the opposite end and set up the direct-connected line of point-to-point wireless transmission, corresponding a pair of wireless laser communication of wireless laser communication link is sent out and is received physics to link port right.Divide with business, the corresponding traffic engineering of port etc. and to be included into certain classification, the transmitting-receiving port of same classification has determined the classification of respective wireless laser communication link to classification.Comprise wireless laser communication edge link and wireless laser communication core link in the present invention.The foundation of wireless laser communication link is subjected to visual transmission restriction.
The wireless laser communication chain environment: the wireless laser communication link is actually a middle thin narrow free space of receiving-transmitting sides of intercommunication mutually, be that the wireless laser communication link is the part of free space, its characteristic parameter is that the characteristic parameter (for example characteristic parameter such as background noise, atmospheric turbulance) with free space changes, so the transmission quality of wireless laser communication etc. just is subjected to the influence of the characteristic parameter of these free spaces, these characteristic parameters that influence wireless laser communication are exactly the wireless laser communication chain environment.For adapting to the wireless laser communication chain environment, wireless laser communication adopts ATP operation, self adaptation operation to wait and ensure wireless laser communication link good usability and reliability.
The empty branch: the rigging position that refers to equipment separates on physical space, example; Working interface and backup interface; Working interface port and backup port; Work wireless optical core node and backup wireless optical core node; Work wireless optical core node port and backup wireless optical core node port or the like.
Edge Burst route is handled: fringe node determines that according to Routing Protocol a bursty data is grouped in the route of fiber optic network transmission exchange, i.e. source beginning route.Edge Burst route is handled source that agreements such as comprising the GMPLS traffic engineering and realization mechanism the act on Burst route that begins.
Offset time submodule: the functional module of determining offset time in the fringe node by reservation of the present invention territory offset time establishing method (referring to " summary of the invention three ").
The Burst resource can obtain authority: relevant with Burst priority, priority is higher, and then can to obtain authority bigger for resource.
Fringe node resource distribution module: the critical function module of fringe node, main be responsible for to obtain authority, offset time and current resource occupation situation and classify and list in order of importance and urgency scheduling by the Burst resource, give Burst distribution optical fibers channel, distribute wireless laser channel or fiber channel to BHP.
Wireless optical core node resource distribution module: the critical function module of wireless optical core node, main be responsible for can obtaining authority and current resource occupation situation and classify and list in order of importance and urgency scheduling by the Burst resource, give BHP multicast distribution wireless laser channel.
Reservation territory: serve BHP, constitute by a wireless optical core node (reservation territory wireless optical core node and its backup), some fringe nodes and some core nodes, only be positioned at the fringe node in reservation territory and the service that core node just may obtain the wireless optical core node, key technology related to the present invention is tangential method (referring to " summary of the invention two, three, four, five, six ").The OBS fiber optic network is interconnected by interface and a wireless optical core node, under integrated control, and seamless sharing out the work and helping one another, to quicken light burst-switched reserve resource, than it pure fiber optic network treatments B HP, offset time is required have been reduced, and dynamic range has increased.Reservation territory size and scope decide with professional, and are subjected to restrictions such as the wireless laser network element sphere of action of deciding by the business of transmitting restriction, wireless laser communication chain environment, the required processing of fiber optic network core node, with the cost requirement of wireless laser transmission and performance.
Reservation territory fiber optic network: the reservation territory is contained except that wireless optical core node, fringe node interface, core node interface, all and optical fiber relevant portion.
Reservation fiber optic network center, territory: be the specific position point in the fiber optic network geographical topology of reservation territory, place a wireless optical core node as certain altitude above perpendicular to this point, the whole fiber optic network that then belongs to this reservation territory can both obtain the service of the wireless optical core node placed.
Reservation territory main shaft: will preengage wireless optical core node position, territory, reservation fiber optic network center, territory, the continuous straight line that forms of the earth's core three.
Wireless optical core node height: reservation fiber optic network center, territory is to the distance of wireless optical core node.
Reservation fiber optic network edge, territory circle: the circle that is divided at the earth's surface around reservation territory main axis rotation from reservation fiber optic network center, territory node farthest in the fiber optic network of reservation territory, the round heart in reservation fiber optic network edge, territory is preengage fiber optic network center, territory exactly.
Reservation fiber optic network geographic area, territory: institute's exclosure ball surf zone in reservation fiber optic network edge, the territory circle, all fringe nodes and core node all are placed in this zone.All reservation domain network elements all are contained in the vertebra shape obturator that this is regional and the wireless optical core node is constituted.
Preengage the territory surfaces of revolution: reservation fiber optic network edge, territory circle is gone up any and wireless optical straightway that core node connects arbitrarily, and main axis rotation can form a taper surfaces of revolution (referring to figure four) around the reservation territory.
The reservation territory effectively covers: but the three-dimensional space that the obturator that the reservation territory surfaces of revolution and reservation fiber optic network geographic area, territory are surrounded includes is exactly the communication space in reservation territory.If place the wireless optical core node of suitable running parameter in the closed circular cone apex, then only be positioned at effective service that fringe node that the reservation territory effectively covers can arrive the wireless optical core node through the point-to-point wireless laser communication core chain rood of itself and wireless optical core node through the point-to-point wireless laser communication edge link of itself and wireless optical core node, core node.
Reservation territory lateral projection plane: reservation fiber optic network limit, territory circle go up or circle in any one plane of a bit being determined with reservation territory main shaft arbitrarily.
Wireless laser communication edge link: the wireless laser communication link that links fringe node and wireless optical core node.Each bar wireless laser communication edge link specifically links one of fringe node interface and sends BHP port and wireless optical core node one reception BHP port.
Edge ATP operation; ATP module coupling core edge, edge ATP module, both sides are by cooperatively interacting, finish the aiming of fringe node wireless laser calling module prescribed port and wireless optical core node wireless laser collection of letters module corresponding port and catch and follow the tracks of, ensure that wireless laser communication edge link effectively links.
The quick self-adapted operation in edge: by the quick self-adapted module of quick self-adapted module in edge or core edge, fast phase is surveyed and the fast phase compensation, attached with means such as power adjustments, it is required to compensate the normal wireless laser communication in time, to guarantee wireless laser communication edge link good usability and reliability.
Wireless laser communication core link: the wireless laser communication link that links wireless optical core node and core node.Each bar wireless laser communication core link specifically links one of wireless optical core node interface and sends BHP port and core node one reception BHP port.One time multicast BHP relates to some wireless laser communication core links.
Core ATP operation: the additional ATP module of core ATP module coupling, both sides are by cooperatively interacting, finish the aiming of the wireless laser collection of letters module corresponding port of the wireless laser calling module prescribed port of wireless optical core node and core node and catch and follow the tracks of, ensure that reservation territory wireless laser communication core link effectively links.
The quick self-adapted operation of core: by quick self-adapted module of core or additional quick self-adapted module, fast phase is surveyed and the fast phase compensation, attached with means such as power adjustments, compensate the wireless channel parameter in time, to guarantee wireless laser communication core link good usability and reliability.
Wireless laser communication edge link initialization: on the basis of edge ATP operation and the quick self-adapted operation in edge, matched edges wireless laser electrooptic modulation module, edge wireless laser form module, the operation of edge wireless laser transmitter module, in the effective join domain of visual opposite end line, the information that the port wireless laser signal of posting a letter carries can be sent to collection of letters port by free space to the port of posting a letter that makes fringe node effectively with the pairing collection of letters port of wireless optical core node.
Wireless laser communication edge link maintenance operation; On the basis of edge ATP operation and the quick self-adapted operation in edge, matched edges wireless laser electrooptic modulation module, edge wireless laser form module, the operation of edge wireless laser transmitter module, with the wireless laser communication edge link after the dynamic in real time adjustment initialization in wireless laser data (BHP) transmitting synchronous ground, make when the wireless channel parameter changes, can in time obtain system balance, to guarantee to link the wireless laser communication link good usability and the reliability of fringe node and wireless optical core node.
The link existence of wireless laser communication edge ensures; Behind the wireless laser communication edge link initialization, when link failure takes place,, finish switching to initialized backup wireless laser communication edge link, and carry out respective link and keep operation according to the survivability strategy; Use backup post a letter port or backup collection of letters port, rebuild wireless laser communication edge link, and operation such as reinitialize; Transmit by this link failure interruption (referring to " summary of the invention five ") with the wireless laser signal that ensures BHP.
Predetermined edge wireless laser channel; After finishing wireless laser communication edge link initialization, distribute to the path that a BHP transmits by the fringe node resource distribution module in wireless laser communication edge link, be generally a time period that takies a certain wavelength, i.e. a time slot.
Wireless laser communication core link initialization: on the basis of core ATP operation and the quick self-adapted operation of core, cooperate core wireless laser electrooptic modulation module, core wireless laser forms module, the three-dimensional switching regulator exchange of core wireless laser multicast array, operations such as multiast radio laser resource reservation signal emission module, make the port of posting a letter of wireless optical core node match collection of letters port in the effective join domain of visual opposite end line with core node, the information (BHP) that the port wireless laser signal of posting a letter carries can be sent to collection of letters port by free space effectively, sets up initial wireless laser communication core link and links.
Wireless laser communication core link maintenance operation: on the basis of core ATP operation and the quick self-adapted operation of core, cooperate core wireless laser electrooptic modulation module, core wireless laser forms module, the three-dimensional switching regulator exchange of core wireless laser multicast array, operations such as multiast radio laser resource reservation signal emission module, with the wireless laser communication core link after the dynamic in real time adjustment initialization in wireless laser data (BHP) transmitting synchronous ground, make when the wireless channel parameter changes, can in time obtain system balance, to guarantee to link wireless laser communication core link good usability and the reliability of wireless optical core node with core node.
The existence of wireless laser communication core link ensures: behind the wireless laser communication core link initialization, when link failure takes place, according to the survivability strategy, finish switching to initialized backup wireless laser communication core link, and carry out respective link and keep operation; Use backup post a letter port or backup collection of letters port, rebuild reservation territory wireless laser communication core link, and operation such as reinitialize; Transmit by this link failure interruption (referring to " summary of the invention five ") with the wireless laser signal that ensures BHP.
The wireless laser communication core channel of predetermined BHP: behind the wireless laser communication core link initialization, give the path that BHP transmits by core wireless laser node resource module assigns in wireless laser communication core link, be generally a time period that takies a certain wavelength, i.e. a time slot.
The formation of edge wireless laser signal: form module by wireless laser electrooptic modulation module drive edge, edge wireless laser and finish electric light conversion (E/O), be that corresponding each module cooperates the signal of telecommunication of BHP is transformed to the wireless laser signal that is adapted at the BHP that transmits in the wireless laser communication link through E/O, just form module signal of telecommunication BHP is converted to wireless laser signal BHP (edge wireless laser signal BHP) by wireless laser electrooptic modulation module drive edge, edge wireless laser.
The formation of the core wireless laser signal of BHP: form module by core wireless laser electrooptic modulation module drive core wireless laser and finish electric light conversion (E/O), be that corresponding each module cooperates the signal of telecommunication of BHP is transformed to the wireless laser signal that is adapted at the BHP that transmits in the wireless laser communication core link through E/O, just form module signal of telecommunication BHP is converted to wireless laser signal BHP (core wireless laser signal BHP) by core wireless laser electrooptic modulation module drive core wireless laser.
The transmission of wireless laser signal: comprise the transmission of the core wireless laser signal of the transmission of edge wireless laser signal of BHP and BHP.
The transmission of the edge wireless laser signal of BHP; Edge wireless laser signal BHP is closed the mode piece through the edge wireless laser close ripple, then, under assist control such as edge gain control module, will close ripple edge wireless laser signal BHP and enter predetermined edge wireless laser Channel Transmission in the wireless laser communication edge link through the transmission of edge wireless laser resource reservation signal emission module.
The transmission of the core wireless laser signal of BHP: core wireless laser signal BHP is closed ripple through core wireless laser composite wave module, then, to close ripple core wireless laser signal BHP through the three-dimensional switching regulator exchange multicast array processing of core wireless laser and under assist control such as core gain control module, and send through multiast radio laser resource reservation signal emission module and enter predetermined core Channel Transmission in the wireless laser communication core link.
Edge wireless laser BHP propagation time cost; Propagate the wireless laser signal of BHP to the required propagation time of wireless optical core node from fringe node.
Two, the present invention preengages territory framework, establishment and mode of operation:
Reservation territory framework is the basis that the present invention moves, and reservation territory mode of operation has to operate at the reservation territory of setting up by suitable system, just can obtain due network efficiency.
(1), reservation territory framework and establishment criterion:
The present invention preengages domain structure as shown in Figure 5, is effective integrated optical-fiber network by reservation territory fiber optic network and the complementary no Feng Rong of reservation two parts of territory wireless laser communication network.Establishment reservation territory comprises that it is the two kinds of situations in reservation territory that pure fiber optic network has been built in the brand-new establishment reservation territory and the network rebuilding of establishment wireless laser communication.
(1), general provisions; 1., to reservation territory fiber optic network: to set up pure optical fiber OBS network technology is reference, and by business demand distribution node position, the territory fiber optic network is preengage in design; To reduce construction cost as far as possible, reduce to preengage territory wireless laser communication network operation cost as far as possible, reduce OBG network operation cost as far as possible, take into account and can obtain the try one's best high level of resources utilization and QoS, as optimizing main foundation.2., to preengaging territory wireless laser communication network: can satisfy under the business demand prerequisite, the main reservation demand of considering reservation territory fiber optic network, by the integrated or privately owned short-haul links link of separate type fringe node dual mode, rationally be fringe node binding fringe node interface, be core node binding core node interface, selected wireless optical core node set-point, under the prerequisite that can satisfy business demand, optimize the wireless laser communication link and comprise that to make wireless optical core node height low as far as possible, wireless laser communication edge link maximum is short as far as possible, wireless laser communication core link maximum is short as far as possible, wireless laser communication link total length is short as far as possible, and required equipment for wireless light communication price is low as far as possible.3., by the wireless optical network to the framework constraint of reservation territory fiber optic network with regulate, reservation territory fiber optic network network element and wireless optical core node are arranged in the little space of trying one's best, reduce costs such as time cost as far as possible.4., concrete account form method is described referring to " summary of the invention six ".
(2), crucial detailed rules and regulations: 1., from subscription services, make the normal operation of OBS network can use the offset time lower bound of trying one's best little, can enlarge the offset time dynamic range as far as possible, and look after and to satisfy qos requirement with the little cost of trying one's best.2., be the end, be vertebra shape obturator summit with reservation fiber optic network geographic area, territory with the wireless optical core node, concrete situation from reservation fiber optic network geographic area, territory, consider in the reservation territory environmental constraints factor and price requests such as geography, the object with certain height above sea level of considering this zone comprises that cultures such as natural body such as high mountain and high building are to placing the influence of wireless optical core node and relevant wireless light communication link, satisfying under the prerequisite of business demand, making every effort to the tight farmland of vertebra shape obturator structure that this zone and wireless optical core node are constituted.3., price is the main factor that reservation territory frame design mode content and network element formation are set up in decision according to business demand.On the one hand, wireless laser communication link operating distance is far away more, and required network element link processing capacity is just powerful more; On the other hand, need the traffic carrying capacity of node processing big more, professional constitute and model complicated more, required node traffic processing capacity is just powerful more.The network equipment that price is high more, its technology content is high more, technology difficulty is high more, cost and operating cost are high more, performance index are also just high more, the sure business need that satisfies low desired level, but establishment reservation field technique of the present invention constitutes and layout to optimize network, high cost performance is an aim to obtain to try one's best, require under certain situation in price etc., by ingenious layout reservation territory, particularly according to factors such as professional and geography, establishing each network element position of reservation territory wireless laser communication network, and utilize wireless laser communication EM equipment moduleization and empty the branch, is the unit with the wireless laser communication link, establish the function and the performance power thereof of each related network elements respectively, reasonably combined; And optimize reservation territory each network element layout of fiber optic network, and optimize the relative position of reservation territory fiber optic network and reservation territory wireless laser communication network, obtain moderate cost performance.4., the brand-new reservation territory flexibility maximum of setting up, pure fiber optic network situation has been built in the establishment reservation territory wireless laser communication network rebuilding of comparing, its Networks of Fiber Communications and wireless laser communication network can be unified layout, have to optimize the advantage that the tight farmland of universe is set up, and its network efficiency can be higher.5., built pure fiber optic network for setting up the wireless laser communication network rebuilding, because of having determined (its cable network flexibility is mainly provided by the privately owned short-haul links on-link mode (OLM) of separate type fringe node) as the pure fiber optic network main part of reservation territory fiber optic network, the main task of establishment just only is to set up reservation territory wireless laser communication network.
(3), decision optimization: when wireless optical core node height requirement result of calculation (referring to " summary of the invention six ") less than the reservation fiber optic network geographic area, territory in the object height, thereby when calculating location is placed the wireless optical core node and can be made that some nodes of reservation territory fiber optic network and wireless optical core node link are blocked: 1., if do not change wireless optical core node height, in the reservation sky, fiber optic network geographic area, the territory set-point of selected wireless optical core node again, can avoid this object stopping to the wireless laser communication link, and each node can obtain the service with quality in the fiber optic network of reservation territory, then center on the limit operating distance of wireless laser communication distance between this position calculation node, calculating establishment reservation territory and operation price are required, New-deployed Network are also comprised consideration and the interactive result's of fiber lengths calculating; 2., if do not change wireless optical core node height, in the reservation sky, fiber optic network geographic area, the territory set-point of selected wireless optical core node again, can not avoid this object stopping to the wireless laser communication link, then do not change reservation territory main shaft, after only promoting wireless optical core node certain altitude, make the wireless laser communication link can just avoid all objects stopping to it, make reservation territory interior each node of fiber optic network can obtain required service, then, limit operating distance around wireless laser communication distance between this position calculation node, calculating establishment reservation territory and operation price are required, New-deployed Network are also comprised consideration and the interactive result's of fiber lengths calculating; 3., if do not change wireless optical core node height, in the reservation sky, fiber optic network geographic area, the territory set-point of selected wireless optical core node again, can not avoid this object stopping to the wireless laser communication link, then after promoting wireless optical core node height, reset reservation territory main shaft, make the wireless laser communication link can avoid all objects stopping to it, and the lifting capacity minimum of required lifting wireless optical core node height, make reservation territory interior each node of fiber optic network can obtain required service, then, limit operating distance around wireless laser communication distance between this position calculation node, calculating establishment reservation territory and operation price are required, New-deployed Network are also comprised consideration and the interactive result's of fiber lengths calculating; 4., if serve as that reservation territory main shaft passes through the position with this object position, with it highly is wireless optical core node height, can avoid all objects stopping to the wireless laser communication link, make reservation territory interior each node of fiber optic network can obtain required service, then center on the limit operating distance of wireless laser communication distance between this position calculation node, calculating establishment reservation territory and operation price are required, New-deployed Network are also comprised consideration and the interactive result's of fiber lengths calculating; 5., to brand-new establishment reservation territory, under the prerequisite that can satisfy business demand, suitably in design, receive or the fibre web network each several part of giving out light, repeatedly calculate 1. 2. 3. 4.; 6., built pure fiber optic network, calculate 1. 2. 3. 4. once transforming; 7., node location can optimize set-point in the selected back of reservation territory main shaft, calculate to set up the reservation territory and the operation price is required; 8., relatively above each result, select optimum scheme to realize.
(2), mode of operation of the present invention is divided into two parts:
(1), reservation territory running: unique key component of reservation territory operation is that BHP sends and handles, the acceleration of the unidirectional reserve resource of light burst-switched (OBS) in reservation territory is to be based upon on point-to-point wireless laser communication and the point-to-multipoint wireless laser communication basis, as shown in Figure 6, the reservation territory light burst-switched that centers on the BHP transmission and handle can be divided into four-stage and finish, phase I: fringe node generates bursty data grouping and corresponding BHP, offset time submodule by fringe node is set offset time, by the point-to-point wireless laser communication of fringe node and wireless optical core node, BHP is sent to the wireless optical core node via wireless laser communication edge link.Second stage: the wireless optical core node is accepted treatments B HP, the point-to-multipoint wireless laser communication of each core node of handling by wireless optical core node and edge Burst route is finished BHP and finish the multicast operation of BHP via wireless laser communication core link in less than its phase I required time, and BHP is sent to the core node that edge Burst route is handled.Phase III: the core node that edge Burst route is handled is accepted treatments B HP, the upstream core node via fiber channel to it in abutting connection with downstream core node transmit port information etc., to connect at optical fiber link; Quadravalence section: behind the offset time, send the bursty data grouping via optical fiber link by fringe node.(2), network is kept: unique key component is that wireless laser communication link maintenance operation and the existence of wireless laser communication link ensure.
(3), specifically, mode of operation of the present invention comprise interdependent node to the operation of link, relevant edge node to the operation of BHP, relevant wireless optical core node to the operation of BHP, associated core node to the operation of BHP, five parts of relevant Burst series operation.Main process and correlation function are described below:
(1), interdependent node is to the operation of link: finished by wireless laser communication edge link initialization and set up wireless laser communication edge link; The availability and the reliability of the wireless laser communication edge link that has built up by the link maintenance operation guarantee of wireless laser communication edge; Make reservation wireless laser communication edge, territory link obtain good survivability by wireless laser communication edge link existence guarantee.
Finish by wireless laser communication core link initialization and to set up wireless laser communication core link; The availability and the reliability of wireless laser communication core link have been built up by the guarantee of wireless laser communication core link maintenance operation; Make the core link obtain good survivability by wireless laser communication core link existence guarantee.
(2), fringe node is to the operation of BHP: the source fringe node is finished and is sent in advance outside the generation of BHP and the band on control channel etc. the BHP corresponding operating.Critical process is: the offset time submodule by fringe node is set offset time, for BHP finishes predetermined edge wireless laser channel, and to include the fringe node interface by it be the transmission that BHP finishes the edge wireless laser signal of forming of edge wireless laser signal and BHP, transmits thereby make wireless laser BHP enter wireless laser communication edge link.
(3), the wireless optical core node is to the operation of BHP: finish that BHP receives and the operation of multicast series comprises the transmission etc. of core wireless laser signal of the forming of core wireless laser signal, the BHP of the wireless laser communication core channel of being scheduled to BHP, BHP by the wireless optical core node.
1., include the core node interface by it and finish core node and receive wireless laser signal BHP (4), core node is to the operation of BHP:.2., finish the exchange etc. of port information by its control unit via connecting fiber channel between adjacent node.
(5), node is to the operation of data: by the source fringe node finish the IP grouping buffer memory, encapsulate, be assembled into the light burst packets; The light burst packets behind certain offset time, on the fiber data passage, mail to corresponding BHP for its finish reserved resource in abutting connection with operations such as core nodes.Core node is finished the control information configuration light path according to BHP, to operations such as the burst packets that arrives exchange.The purpose fringe node is finished and is split back operations such as IP grouping with successfully transmitting the burst packets that arrives.
Three, reservation territory offset time establishing method:
1., the core node that each edge Burst route is handled, before the bursty data grouping arrives, time enough treatments B HP all must be arranged, can ensure successfully exchange, offset time is not gone to its corresponding BHP front for the guarantee bursty data is grouped in transmission whole process exactly, and gives each control time delay that the core node that edge Burst route is handled adds.
2., if finishing at bursty data, certain core node reserve resource overall process that edge Burst route is handled divides into groups before fiber channel arrives this core node, then to preengage the processing time of required increase be zero to this core node, otherwise being necessary for it increases the necessary time, required to satisfy processing; Each core node that edge Burst route is handled is the temporal summation that processing increased, and its value is exactly an offset time.
3., reservation territory offset time establishing method specifically is described below:
The core node number of note BHP reserve resource is T
H, j core node (1≤j≤T
H) control and treatment time cost is d
j, the bursty data grouping is t by the required propagation time cost of first core node that fringe node is transmitted to edge Burst route processing
Fiber1, j (1≤j≤(T that the bursty data grouping is handled by edge Burst route
H)) to be transmitted to the required propagation time cost of (j+1) individual core node that edge Burst route handles be t to individual core node
Fiberj, fringe node is t to the relevant wireless laser signal processing transmitting time cost of BHP
S1, edge wireless laser signal BHP is t at the propagation time cost of wireless laser edge link
EDGE, that the wireless optical core node receives edge wireless laser signal BHP, processing and to send core wireless laser signal BHP time cost be t
W1, the propagation time cost that core wireless laser signal BHP is transmitted to j core node of edge Burst route processing is t
WCj, the light bursty data is t by the propagation time of j the core node that fringe node to edge Burst route is handled
Fj
4., reservation territory offset time establishing method concrete steps are as follows:
Step I, as t
OFS1+ d
1＞t
Fiber1, Δ T then
Offset1=t
OFS1+ d
1-t
Fiber1, jump procedure III;
Step II, as t
OFS1+ d
1≤ t
Fiber1, Δ T then
Offset1=0, jump procedure V;
Step II I, as (t
OFS2+ d
2)＞(t
OFS1+ d
1+ t
Fiber2), Δ T then
Offset2=t
OFS2+ d
2-t
OFS1-d
1-t
Fiber2, jump procedure VII:
Step IV, as (t
OFS2+ d
2)≤(t
OFS1+ d
1+ t
Fiber2), Δ T then
Offset2=0, jump procedure IX;
Step V, as (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), Δ T then
Offser2=t
OFS2+ d
2-t
Fiber1-t
Fiber2, jump procedure XI;
Step VI, as (t
OFS2+ d
2)≤(t
Fiber1+ t
Fiber2), Δ T then
Offset2=0, jump procedure XIII;
Step VII, as (t
OFS3+ d
3)＞(t
OFS1+ d
1+ t
OFS2+ d
2), Δ T then
Offset3=t
OFS3+ d
3-t
OFS2-t
OFS1-d
2-d
1
Step VIII, as (t
OFS3+ d
3)≤(t
OFS1+ d
1+ t
OFS2+ d
2), Δ T then
Offset3=0;
Step IX, as (t
OFS3+ d
3)＞(2t
OFS1+ 2d
1+ t
Fiber2), Δ T then
Offset3=t
OFS3+ d
3-2t
OFS1-2d
1-t
Fiber2
Step X, as (t
OFS3+ d
3)≤(2t
OFS1+ 2d
1+ t
Fiber2), Δ T then
Offset3=0;
Step XI, as (t
OFS3+ d
3)＞(t
OFS2+ d
2), Δ T then
Offset3=t
OFS3+ d
3-t
OFS2-d
2
Step XII, as (t
OFS3+ d
3)≤(t
OFS2+ d
2), Δ T then
Offset3=0;
Step XIII, as (t
OFS3+ d
3)＞(t
Fiber1+ t
Fiber2+ t
Fiber3), Δ T then
Offset3=t
OFS3+ d
3-t
Fiber1-t
Fiber2-t
Fiber3
Step XIV, as (t
OFS3+ d
3)≤(t
Fiber1+ t
Fiber2+ t
Fiber3), Δ T then
Offset3=0;
The rest may be inferred for all the other steps, if move to certain step K (1≤K≤T
H) the redirect condition is false, and follow-up redirect condition all is false, and finishes, required offset time is
As seen, as long as network parameter configuration design is proper, OBS runs on the reservation territory, runs on pure fiber optic network than it, and required offset time can greatly reduce, and minimum may reduce to zero.
Four, the unidirectional reserve resource course of work of the present invention specifically is described below;
Each BHP that sends prior to bursty data is formed in the process of its corresponding Burst of assembling by fringe node, and wherein, the operation of relevant offset time is mainly finished around the offset time submodule.Behind wireless laser communication edge link initialization and wireless laser communication core link initialization, follow wireless laser communication edge link maintenance operation, fringe node is finished the formation of each BHP edge wireless laser signal; Then, can obtain authority by the fringe node resource distribution module according to the BHP resource classifies it, and according to current resource occupation situation queue scheduling, be respectively each BHP and finish predetermined edge wireless laser channel, and after the edge wireless laser closes the mode piece and closes ripple, finish the transmission of the wireless laser signal of BHP by edge wireless laser transmitter module.BHP is in wireless laser communication edge link transmission course, and wireless laser communication edge link maintenance operation will ensure that wireless laser communication edge link is a high quality link, thereby ensures effective transmission of unidirectional reserve resource message.Simultaneously, link existence in wireless laser communication edge ensures and makes wireless laser communication edge link obtain good survivability.After carrying out the link existence guarantee operation of wireless laser communication edge, but the reserve resource associative operation relevant with fault wireless laser communication edge link will be carried out by the wireless laser communication edge link of the operate as normal after execute protection operation or the recovery operation.
BHP is after wireless laser communication edge link transfers to the wireless optical core node, received by core wireless laser resource reservation signal receiving module, behind core wireless laser partial wave module partial wave, each wireless laser BHP is admitted to core wireless laser photoelectricity modular converter and carries out light-to-current inversion, direct regenerate electrical signals BHP, take out the core node address information of handling by edge Burst route by the core control logic module again, the BHP resource that cooperates core wireless laser node resource distribution module to send according to each node can obtain authority with its comprehensively classification once more, and according to current resource occupation situation queue scheduling, generate each BHP multicast tree, follow the core link maintenance operation, predetermined core wireless laser channel.The formation regeneration wireless laser signal BHP of the core wireless laser signal by BHP after core wireless laser composite wave module is closed ripple, is sent completely the processing of wireless optical core node to BHP by the core wireless laser signal of BHP.
Core wireless laser composite wave module to each each branch of BHP multicast tree in the parallel independent process of the mapping in wireless laser territory, in other words, be exactly on the pairing wireless laser communication link of each branch, close of wireless laser signal BHP parallel work-flow predetermined core channel and the corresponding scheduling of mode piece by the corresponding core wireless laser to going to same purpose fiber optic core node, the wireless laser resource reservation signal that closes behind the ripple is delivered to the three-dimensional switching regulator exchange of core wireless laser multicast array, be sent to the core node that edge Burst route is handled by multiast radio laser resource reservation signal emission module multicast.
Wireless laser communication core link maintenance operation will ensure that wireless laser communication core link is a high quality link, thereby ensure that the fiber optic network core node effectively receives unidirectional reserve resource message.Simultaneously, the existence of wireless laser communication core link ensures and makes wireless laser communication core link obtain good survivability.After carrying out wireless laser communication core link existence guarantee operation, but the reserve resource associative operation relevant with fault wireless laser communication core link will be carried out by the wireless laser communication core link of the operate as normal after execute protection operation or the recovery operation.
At last, finishing core node by the core node interface by the operation of additional wireless laser resource reservation signal receiving module, coupling module etc. receives wireless laser signal BHP and converts it to the signal that core node can carry out next step resource reservation processing.At last, the upstream core node that edge Burst route is handled is core node transmit port information downstream, sets up to link.
Five, wireless laser communication link robust control operation of the present invention:
In service in the reservation territory, system is that each node is with sub-category configuration effort wireless laser communication links such as Network demands, configuration backup wireless laser communication link, dispose the free backup port group that free backup port constitutes, each free backup port in each free backup port group all possesses certain maneuverability, recover in the area of responsibility in the free backup port group in its place, can finish with the respective classes port of peer node and rebuild the operation of link series.
Each port contains some wavelength and makes professional transport vehicle, and business can category, and on the basis that corresponding QOS strategy is handled, the same grade business of industry team affair classification can free optional wavelength work in the choosing wavelength of its current optional port; When the device fails of corresponding certain wavelength, can select another choosing wavelength work automatically, port is divided into the different port classification with the class of service of its service.When a certain port of work wireless laser communication link one end breaks down, when promptly this port can not be worked, carry out the existence scheme according to business demand.
(1), existence scheme comprises existence scheme one or existence scheme two or existence scheme three.1., existence scheme one: system carries out business immediately by the handover operation of fault wireless laser communication link switchover to proprietary backup wireless laser communication link, keeps network and normally moves.Simultaneously, but as the port of peer node operate as normal still, then can on the basis of built-in quick fault-finding location, damage the port classification by interdependent node by originating port and handle accordingly.If this classification also has assignable free backup port in the free backup port group of the affiliated node of originating port damage port, this node just distributes a free backup port in the free backup port group of respective classes, but rebuild wireless laser communication link with that port of the still operate as normal of its peer node, make respective classes backup wireless laser communication link; So classification has not had assignable free backup port, but then still that port of operate as normal just become the free backup port of respective classes of peer node, be included into the free backup port group of its respective classes.Port as peer node also breaks down simultaneously, and then system only makes hand-off process.2., existence scheme two: system distributes a backup wireless laser communication link to replace fault wireless laser communication link in respective classes backup wireless laser communication link group, keeps network and normally moves.Simultaneously, but as the port of peer node operate as normal still, then can on the basis of built-in quick fault-finding location, damage the port classification by interdependent node by originating port and handle accordingly.If this classification also has assignable free backup port in the free backup port group of the affiliated node of originating port damage port, this node just distributes a free backup port in the free backup port group of respective classes, but rebuild wireless laser communication link with that port of the still operate as normal of its peer node, and be included into respective classes backup wireless laser communication link group; So classification has not had assignable free backup port, but then still that port of operate as normal just become the free backup port of respective classes of peer node, be included into the free backup port group of its respective classes.Port as peer node also breaks down simultaneously, and then system only does to distribute a backup wireless laser communication link to replace fault wireless laser communication link relevant treatment.3., existence scheme three: replaceable backup wireless laser communication link when this scheme is not built work wireless laser communication link occurs fault in advance in, but as the port of peer node operate as normal still, then can on the basis of built-in quick fault-finding location, damage the port classification by interdependent node by originating port and handle accordingly.If this classification also has assignable free backup port in the free backup port group of the affiliated node of originating port damage port, this node just distributes a free backup port in the free backup port group of respective classes, with its peer node still can be normal 1 that port of doing rebuild wireless laser communication link, system is a work wireless laser communication link with it, makes associative operation around it.Port as peer node also breaks down simultaneously, and then system respectively distributes a free backup port simultaneously in the free backup port group of both sides, and finishes reconstruction wireless laser communication link associative operation.Existence scheme one and existence scheme two belong to protection scheme, and existence scheme three belongs to recovery scheme, adopt the former existence service speed faster than the latter, adopt the existence service speed of existence scheme one the fastest.When fault took place, control system was reported to the police to management system in the processing of surviving.When node control system works control nucleus module breaks down, take over job automatically by backup.
(2), the existence operation comprises the wireless laser communication edge link existence operation based on the fringe node interface, wireless laser communication edge link existence operation based on the wireless optical core node, based on the wireless laser communication core link existence operation of wireless optical core node, based on the wireless laser communication core link existence operation of core node interface.1., based on the wireless laser communication edge link existence operation of fringe node interface: when certain port of working edge node interface breaks down and can not work the time, the built-in quick fault-finding positioning unit perception immediately of fringe node interface, as the scheme employing existence scheme one of surviving, then system finishes the link switchover of wireless laser communication edge automatically; As the scheme of surviving adopts existence side to wear one, and then system can distribute a respective classes to back up the alternative fault wireless laser communication edge of link, wireless laser communication edge link, promptly rejects fault wireless laser communication edge link; Simultaneously, no matter employing existence scheme one still adopts existence scheme two, but if the wireless optical core node port of fault wireless laser communication edge link operate as normal still, then system just selects respective classes backup idle port to set up wireless laser communication edge link with it at fringe node, and is included into respective classes backup wireless laser communication edge link.If fringe node has not had assignable free backup port at respective classes, but then just with fault wireless laser communication edge link still that wireless optical core node port of operate as normal be included into the free backup port group of respective classes; If fringe node interface port and wireless optical core node port that the wireless laser communication edge link that breaks down links break down simultaneously, then link relevant edge ATP operation in this fault wireless laser communication edge waits and just lost efficacy immediately, thereby system just experiences work wireless laser communication link down immediately, to existence scheme one, then system only finishes automatic switchover; To existence scheme two, then system only finishes and distributes respective classes backup wireless laser communication edge link to substitute the wireless laser communication boundary chain dataway operation that is out of order, and therefore the assignable backup wireless laser communication of respective classes edge link has also lacked one.As the scheme of surviving adopts existence scheme three, if but the wireless optical core node port of this fault wireless laser communication edge link operate as normal still, then system just selects a backup idle port to set up wireless laser communication edge link with it at respective classes at fringe node.If the fringe node respective classes has not had assignable free backup port, but then just with fault wireless laser communication edge link still that wireless optical core node port of operate as normal be included into the free backup port group of respective classes.For avoiding system to cause erroneous judgement to Link State because of faults such as ATP parts, adopt the ATP back mechanism, promptly break down when ATP parts, built-in quick fault-finding positioning unit activates the work of backup ATP parts immediately.2., operate based on the wireless laser communication edge link existence of wireless optical core node; When certain port of wireless optical core node breaks down and can not work the time, the built-in quick fault-finding positioning unit perception immediately of wireless optical core node is adopted existence scheme one as the existence scheme, then system finishes the link switchover of wireless laser communication edge automatically; Adopt existence scheme two as the system survival scheme, then system can distribute respective classes backup wireless laser communication edge link to substitute fault wireless laser communication edge link, promptly rejects fault wireless laser communication edge link.Simultaneously, no matter employing existence scheme one still adopts existence scheme two, but if the fringe node interface port of fault wireless laser communication edge link operate as normal still, then system just selects respective classes backup idle port to set up wireless laser communication edge link with it at the wireless optical core node, and is included into respective classes backup wireless laser communication edge link.If the wireless optical core node has not had assignable free backup port at respective classes, that fringe node interface port of operate as normal is included into the free backup port group of respective classes but then just incite somebody to action still.If fringe node interface port and wireless optical core node port that the wireless laser communication link that breaks down links break down simultaneously, then link relevant edge ATP operation in this fault wireless laser communication edge waits and just lost efficacy immediately, thereby system just experiences work wireless laser communication link down immediately, to existence scheme one, then system only finishes automatic switchover; To existence scheme two, then system only finishes and distributes respective classes backup wireless laser communication edge link to substitute the wireless laser communication boundary chain dataway operation that is out of order, and therefore the assignable backup wireless laser communication of respective classes edge link has also lacked one.Adopt existence scheme three as the system survival scheme, if but the fringe node interface port of this fault wireless laser communication edge link operate as normal still, then system just selects a backup idle port to set up wireless laser communication edge link with it at wireless optical core node respective classes.If wireless optical core node respective classes has not had assignable free backup port, the fringe node interface port of that fault wireless laser communication edge link of operate as normal is included into the free backup port group of respective classes but then just incite somebody to action still.For avoiding system to cause erroneous judgement to Link State because of faults such as ATP parts, adopt the ATP back mechanism, promptly break down when ATP parts, built-in quick fault-finding positioning unit activates immediately with the work of link backup ATP parts.3., based on the wireless laser communication core link of wireless optical core node existence operation: when certain port of the relevant wireless optical core node of work wireless laser communication core link breaks down and can not work the time, the quick fault-finding positioning unit of wireless optical core node can be found out immediately, as the scheme employing existence scheme one of surviving, then system finishes automatically switching operation; As the scheme employing existence scheme two of surviving, then system can distribute respective classes backup wireless laser communication core link to substitute the wireless laser communication core link that breaks down, and promptly rejects fault wireless laser communication core link.Simultaneously, no matter employing existence scheme one still adopts existence scheme two, but if the core node interface port that fault wireless laser communication core link links operate as normal still, then system just distributes the respective backup port to set up the wireless laser communication core link of core node interface port therewith at the wireless optical core node, and is included into respective classes backup wireless laser communication core link; Do not have generic free backup port to have distributed as the wireless optical core node, but then just with the opposite end still that core node interface port of operate as normal be included into the free backup port group of respective classes.If wireless optical core node and core node interface port that the wireless laser communication core link that breaks down links break down simultaneously, then core ATP operation waits and just lost efficacy immediately, thereby system just experiences work wireless laser communication link down immediately, to existence scheme one, then system just only finishes automatic switchover; To existence scheme two, then system just only finishes and distributes respective classes backup wireless laser communication core link to substitute the wireless laser communication core chain dataway operation that is out of order, and therefore the assignable backup wireless laser communication of respective classes core link has also lacked one.Adopt existence scheme three as the system survival scheme, if but the core node interface port of this fault wireless laser communication core link operate as normal still, then system just selects a backup idle port to set up wireless laser communication core link with it at wireless optical core node respective classes.If wireless optical core node respective classes has not had assignable free backup port, but then just with fault wireless laser communication core link still that core node interface port of operate as normal be included into the free backup port group of respective classes.For avoiding system to cause erroneous judgement to Link State because of faults such as ATP parts, adopt the ATP back mechanism, promptly break down when ATP parts, built-in quick fault-finding positioning unit activates immediately with the work of link backup ATP parts.When needed, lost efficacy or port when not enough as work wireless optical core node, operation also can divide backup wireless optical core node carry out in conjunction with sky, and this moment, all ports that belong to backup wireless optical core node incorporated the appropriate level backup port into.4., based on the wireless laser communication core link of core node interface existence operation: when certain port of work wireless laser communication core link related work core node interface breaks down and can not work the time, the quick fault-finding positioning unit of core node interface can be found out immediately, as the scheme employing existence scheme one of surviving, then system finishes automatically switching operation; As the scheme employing existence scheme two of surviving, then system can distribute respective classes backup wireless laser communication core link to substitute this wireless laser communication core link that breaks down, and promptly rejects fault wireless laser communication core link.Simultaneously, no matter employing existence scheme one still adopts existence scheme two, but if the wireless optical core node port that fault wireless laser communication core link links operate as normal still, then system just sets up the wireless laser communication core link of wireless optical core node port therewith at core node interface assignment respective backup port, and is included into respective classes backup wireless laser communication core link; Do not have generic free backup port to have distributed as the core node interface, but then just with the opposite end still that wireless optical core node port of operate as normal be included into the free backup port group of respective classes.If wireless optical core node and core node interface port that the wireless laser communication core link that breaks down links break down simultaneously, then core ATP operation waits and just lost efficacy immediately, thereby system just experiences work wireless laser communication link down immediately, to existence scheme one, then system just only finishes automatic switchover; To existence scheme two, then system just only finishes and distributes respective classes backup wireless laser communication core link to substitute the wireless laser communication core chain dataway operation that is out of order, and therefore the assignable backup wireless laser communication of respective classes core link has also lacked one.Adopt existence scheme three as the system survival scheme, if but the wireless optical core node port of fault wireless laser communication core link operate as normal still, then system just selects a backup idle port to set up wireless laser communication core link with it at core node interface respective classes.If the core node respective classes has not had assignable free backup port, but then just with fault wireless laser communication core link still that wireless optical core node port of operate as normal be included into the free backup port group of respective classes.For avoiding system to cause erroneous judgement to Link State because of faults such as ATP parts, adopt the ATP back mechanism, promptly break down when ATP parts, built-in quick fault-finding positioning unit activates immediately with the work of link backup ATP parts.
Six, the reservation territory makes up and the operation correlation computations:
The wireless laser communication link is the point-to-point communication link, limited by visual transmission, calculating of the present invention is exactly to launch as link limitations, when making up the reservation territory, with reference to " summary of the invention two; () ", at first determine reservation fiber optic network edge, territory circle and reservation fiber optic network center, territory according to business demand, the shortest line arc of two nodes on the face of land of thinking the maximum outreach that satisfies business demand and design is reservation fiber optic network edge, territory circular diameter, make the round heart in reservation fiber optic network edge, territory with its mid point, promptly preengage fiber optic network center, territory, it is exactly to preengage fiber optic network geographic area, territory that the earth surface that the surfaces of revolution is contained that reservation fiber optic network edge, territory circular diameter forms around the reservation round heart in fiber optic network edge, territory and the rotation of the earth's core line amasss, then, do reservation fiber optic network edge, territory circle is gone up any and the earth's core line (being defined as edge heart line circularly) arbitrarily, do this by the tangent line (be defined as edge circle cut-in without ball line) of the face of land to aerial liftoff direction, and on tangent line, determine to place wireless optical core node point for reservation fiber optic network geographic area, territory, determine reservation territory main shaft.The female coupling tap body that the reservation territory effectively covers just by the edge circularly the right-angled triangle that surrounded of heart line, edge circle cut-in without ball line, reservation territory main shaft form around preengaging the territory main axis rotation, circle cut-in without ball line in edge is exactly an ideal position of placing the wireless optical core node with the intersection point of reservation territory main shaft, and the female coupling tap body that structure reservation territory effectively covers is to make up the first step of preengaging the territory; Cutting reservation territory, reservation fiber optic network geographic area, territory effectively covers limit female coupling tap body, and it is divided into space segment and geoid part, it is exactly to pick out the fiber optic network geographic area, reservation territory of the contained geoid of female coupling tap body and the space segment between the wireless optical core node that the reservation territory effectively covers, after making up the effective covering in reservation territory, just determined the border in reservation territory; Then, can in the reservation territory effectively covers, under the prerequisite that can satisfy business demand, make up, make cost performance moderate according to index request optimization reservation territories such as setting up cost and operation cost.
(1), the female coupling tap body that effectively covers of reservation territory: as shown in Figure 7, B be on reservation fiber optic network edge, the territory circle a bit, B point and the earth's core O point line are the BO straightway, are earth radius, approximate 6376km; The BT straightway is a B point tangent section, and the wireless optical core node is placed on the T point; The TO straightway is a T point line section on the earth's core and the tangent line, promptly preengages main shaft place, territory; The vertical BT of BO; The female coupling tap body that the reservation territory effectively covers is just rotated around TO by BO, BT and forms.2., effectively to cover limit female coupling tap be exactly the female coupling tap body that the maximum reservation territory that can make up effectively covers in the reservation territory, promptly the edge circularly heart line, edge circle cut-in without ball line, the reservation territory main shaft maximum right-angled triangle that can surround around preengaging the female coupling tap body that the territory main axis rotation forms.
(2), the reservation territory effectively covers; 1., as shown in Figure 7, TO and earth surface intersection point M are the round heart in reservation fiber optic network edge, territory, promptly preengage fiber optic network center, territory, MO is an earth radius, straightway BT and straightway ET are tangent in TM both sides and earth surface respectively, two length of straigh line equate, OB is an earth radius, the vertical BT of OB, OE are earth radius, the vertical ET of OE, angle BTM equals angle ETM, arc BME is reservation fiber optic network edge, territory circular diameter, and arc BM length equals arc EM length, and the reservation territory effectively covers the projection on reservation territory lateral projection plane about reservation territory main shaft symmetry.2., closed figure TBME is depicted as the projection that the reservation territory effectively covers the reservation territory lateral projection plane of B point decision, this projection includes the space around the obturator that reservation territory main axis rotation forms, be that TBME centers on the three-dimensional space scope that rotary body included that the rotation of TM axle forms, preengage the territory exactly and effectively cover.3., Fig. 7 is resolved to Fig. 8 reservation fiber optic network geographic area, territory area S
SE=4 π Rh, h are the length of cutting mid point H with the reservation territory fiber optic network line of centres of BE, the i.e. length of straight line HM.As placing the wireless optical core node of proper property, then only be positioned at earth surface at S at the T point
SEThe fringe node of this wireless optical core node of coupling in the area and core node be corresponding by the planning of reservation territory, under fast wireless laser communication network integration intelligently massively sending control control but the point-to-point wireless laser link that can work independently separately just can effectively be served.4., effectively to cover the limit be exactly that the reservation territory that effectively covers limit female coupling tap correspondence, reservation territory effectively covers in the reservation territory, limited by visual transmission, the reservation territory in the maximum reservation territory that promptly can make up effectively covers.5., corresponding reservation territory effectively covers the limit: BME arc length maximum is about 2 π R/3, promptly approximates 13353km, and this moment, TM length approximated R, promptly approximated 6376km, and BT length approximates 11043km,
Approximate 4 π R
2/ 3, promptly approximate 70286839km
2, above parameter characterization the limit that effectively covers of reservation territory.
(3), tangential method makes up the reservation territory:
During Project Realization, tangential method makes up the reservation territory to be had simplicity of design convenience, compact in design, efficiently utilizes the wireless laser resource service in characteristics such as light burst-switched.Fig. 7 is resolved to Fig. 9, BDC arc length degree is 2 π R (∠ BOD)/180, as serving as that reservation fiber optic network edge, territory circular diameter can satisfy business demand with it, then make arc BD and arc CD, the two is isometric, the D point is exactly to preengage fiber optic network center, territory, the edge circle cut-in without ball line BT that itself and the earth's core O point line friendship face of land B are ordered is in the A point, the A point is exactly the position that the wireless optical core node is placed in constructed reservation territory, straightway AO preengages main shaft place, territory exactly, AB around AO rotate to become the surfaces of revolution and the bullet that surrounds of reservation fiber optic network geographic area, territory be exactly that constructed reservation territory effectively covers, angle BAD equals angle CAD.
1., going up the relevant wireless laser communication link parameter of node with reservation fiber optic network edge, territory circle calculates: the length of BA is that reservation fiber optic network edge, territory circle is gone up the reservation territory wireless laser communication linkage length that node is communicated by letter with the wireless optical core node to be needed, preengage the maximum of the reservation territory wireless laser communication linkage length in territory for this reason, BA=Rtan (∠ BOA)=6376tan (∠ BOA) km, its corresponding propagation time is t
EDGE=BA/ (3.8 * 10
5) second,
Wireless optical core node height
2., calculate: the I point is to preengage in the fiber optic network of territory a bit, is node j position with the relevant wireless laser communication link parameter of reservation fiber optic network geographic area, territory interior nodes, so, I determines the lateral projection plane with reservation territory main shaft, be called I lateral projection plane, as shown in figure 10, B
0Be I lateral projection plane and reservation fiber optic network edge, territory circle intersection point, arc B
0DC
0Also be reservation fiber optic network edge, territory circular diameter, its length equals arc BDC length,
Be the reservation territory wireless laser communication linkage length that reservation fiber optic network edge, territory circle interior nodes is communicated by letter with the wireless optical core node and needed, respective propagation time cost t
WCj=AI/ (3.8 * 10
5) second.
3., the reservation territory treatments B HP time cost that makes up of tangential method calculates: for pure fiber optic network, be n as the node number of need treatments B HP reserve resource, the processing transmitting time cost of fringe node is t
s, the processing transmitting time cost of core node j is d
j, t
w=infd
j, the time cost from core node j propagation BHP to core node (j+1) is t
Fiberj, then BHP required time cost is t
FBHPn〉=t
s+ n t
w+ t
Fiber1+ t
Fiber2+ ... + t
Fiberj+ ... + t
Fibe (rn-1)For the reservation territory, be t as the reception processing time cost of core node
CW(comprise wireless receiving processing time cost t
CWWReceive processing time cost t with optical fiber
CWF), the time cost that j core node transmits the individual core node of its port information to the (j+1) is t
CWCj, t
CWCjWith t
FiberjCan compare t
CWCjIn maximum be designated as t
CWC, t
WCjIn maximum be designated as t
WCThen transmit the required total time cost t of BHP
OFSn≤ t
S1+ t
EDGE+ t
W1+ t
WC+ t
CW+ t
CWCThe present invention makes the time cost decrement T of BHP
WLEE〉=(t
FBHPn--t
OFSn).
Existing optical communication practice shows, though the design with wireless laser equipment is different with structure, and difference such as professional scale, business demand, the required processing time cost of wireless laser communication might be different, but the processing time cost of wireless laser communication and the processing time cost of optical fiber communication can be compared, when designing concrete reservation territory in conjunction with concrete business demand, selected wireless laser equipment also must matched fiber equipment.With regard to the first resource reservation processing, wireless laser signal and the fringe node of pure fiber optic network that the suitable wireless laser Channel Transmission of BHP was handled and sent by the clean culture of fringe node interface to reservation territory fringe node handled the fiber-optic signal of the suitable fibre channel transmission of transmission BHP, and the two time cost can be compared; The clean culture of wireless optical core node is accepted, handle, sending BHP wireless laser signal and pure fiber optic network core node accepts, handle, send the BHP fiber-optic signal, the two time cost can be compared, simultaneously, the wireless optical core node of the professional scale in adaptive reservation territory, its proper electricity storage distributes, tree-like structure and the moderate distribution process ability of focusing on that it is moderate, mate its sky and divide the multiport structure with flexible assignment ability, make it at any time, the BHP that arrives the wireless optical core node in the parallel processing reservation territory comprises multicast and parallel the transmission, make reservation territory wireless optical core node be included in electric territory generation multicast tree address process and modulation and each branch wireless laser BHP of transmission multicast tree etc. to the processing of wireless laser BHP, can compare with the time cost that its clean culture is handled, the wireless optical core node receives handles transmitting time cost t
W1Handle transmitting time cost t with the reception of pure fiber optic network core node
wCan compare.
Core node receives by the core node interface and handles wireless laser BHP time cost t
CWBe not more than pure fiber optic network core node and receive the time cost t that handles the BHP light signal that fiber channel transmits
w, simultaneously, the wireless laser signal is in the propagation velocity (3.8 * 10 of wireless laser communication link
8) obviously greater than the propagation velocity (2 * 10 of light signal in optic communication links
8).Thereby, Δ T
WLEE〉=t
s+ n t
w+ t
Fiber1+ t
Fiber2+ ... + t
Fiberj+ ... + t
Fibe (rn-1)-(t
S1+ t
EDGE+ t
W1+ t
WC+ t
CW+ t
CWCThe t of) 〉=(n-1)
w+ t
Fiber1+ t
Fiber2+ ... + t
Fiberj+ ... + t
Ribe (rn-1)-t
EDGE-t
WC-t
CW-t
CWC, Δ T
WLEEWhat characterized that the present invention discharges is used for time of resource reservation at pure optical fiber OBS network, this shows, the present invention can discharge the time that pure optical fiber OBS network is used for resource reservation and (can be used for the QoS measure, can increase the disposal ability of resource reservation), the core node that relates to is many more, and then the time cost reduction of reserve resource is just many more.It is big that the reservation territory makes up flexibility ratio, can select wireless network building mode, scale, realization network element with business need.
Description of drawings
Fig. 1 is pure optical fiber OBS network diagram
The explanation auxiliary view of Fig. 2 required offset time of pure optical fiber OBS network for bursty data is transmitted in
Fig. 3 is the explanation auxiliary view of BHP at the time cost of a core node of pure optical fiber OBS network, wherein T
i cFor core node is finished treatments B HP constantly, T
iBe output link RSVP zero hour, T
i+ L
BFor discharging bandwidth constantly
Fig. 4 is the explanation auxiliary view of the reservation territory surfaces of revolution, B be on reservation fiber optic network edge, the territory circle a bit, M preengages the round heart in fiber optic network edge, territory exactly, the BME arc is exactly reservation fiber optic network edge, a territory circular diameter, the T point is for placing wireless optical core node position, and BT straightway or ET straightway rotate around TM and form the taper surfaces of revolution
Fig. 5 is the explanation auxiliary view of reservation domain structure
Fig. 6 is the explanation auxiliary view around the four-stage of the reservation territory light burst-switched of BHP transmission and processing
Fig. 7 effectively covers the explanation auxiliary view of limit female coupling tap body for the reservation territory, and O is the earth's core, B, M, E, the same Fig. 4 of T implication, for their may value value
Fig. 8 is for calculating the auxiliary view that the reservation territory effectively covers absolute rating, and H is the mid point that cuts BE, the same Fig. 7 of all the other symbol implications
Fig. 9 makes up required scale reservation field parameter, calculates auxiliary view with the round relevant wireless laser communication link parameter of node of going up in reservation fiber optic network edge, territory by actual business requirement for calculating tangential method, the BDC arc is reservation fiber optic network edge, territory circular diameter, the D point is reservation fiber optic network center, territory, the A point is for placing wireless optical core node position, the same Fig. 7 of all the other symbol implications
Figure 10 calculates auxiliary view, I point core node j position, B for calculating with the relevant wireless laser communication link parameter of reservation fiber optic network geographic area, territory interior nodes
0And C
0Be last 2 points of reservation fiber optic network edge, territory circle, arc B
0DC
0Be reservation fiber optic network edge, territory circular diameter, the same Fig. 7 of all the other symbol implications
Figure 11 makes up the auxiliary schematic diagram of class education backbone network reservation territory explanation, E by tangential method
1, E
2, E
3, E
5, E
6, E
7Be fringe node, C
1, C
2, C
3, C
4, C
5, C
6, C
7, C
8, C
9, C
10Be core node, W is the wireless light communication core node, the same Fig. 5 of link implication
The auxiliary schematic diagram of large-scale metropolitan area network reservation territory explanation that Figure 12 makes up for tangential method, E
1, E
2, E
3, E
5, E
6Be fringe node, C
1, C
2, C
3, C
4, C
5, C
6, C
7, C
8Be core node, W is the wireless light communication core node, the same Fig. 5 of link implication
The auxiliary schematic diagram of medium-scale metropolitan area network reservation territory explanation that Figure 13 makes up for tangential method, E
1, E
2, E
3, E
5, E
6, E
7Be fringe node, C
1, C
2, C
3, C
4, C
5, C
6, C
7, C
8, C
9Be core node, W is the wireless light communication core node, the same Fig. 5 of link implication
The auxiliary schematic diagram of small-sized metropolitan area network reservation territory explanation that Figure 14 makes up for tangential method, E
1, E
2, E
3, E
5, E
6Be fringe node, C
1, C
2, C
3, C
4, C
5, C
6Be core node, W is the wireless light communication core node, the same Fig. 5 of link implication
Specify content of the present invention below by example:
Embodiment
Operate by edge link Comprehensive Control, edge working interface or edge backup interface all are to set up wireless laser communication edge active link or edge backup link and carry out the respective edges operation by its port that includes, and the two is mutual cross conversion in the network operation.Simultaneously, each port contains some wavelength and makes professional transport vehicle, and business can category, on the basis that corresponding qos policy etc. is handled, and free optional wavelength work in the choosing wavelength of its current optional port.So the edge working interface of simplifying each fringe node only contains a port and sends BHP, its backup edge interface also only contains a port; The working interface of simplifying each core node only contains a port and receives BHP, and its backup interface also only contains a port; And with the required simplification wireless optical of network core node, be unit with the port, can clearly describe and illustrate enforcement of the present invention.The calculating of following example is main to be carried out according to " summary of the invention two, three, six ".
Example one:
Make up class education backbone network reservation territory as shown in figure 11 by tangential method, E
1, E
2, E
3, E
5, E
6, E
7Be fringe node, each fringe node contains a working edge node interface and an empty with it backup fringe node interface that divides; W is that work wireless optical core node contains seven BHP receiving ports and ten transmit ports, and backup cascade wireless optical core node is isomorphism with it; C
1, C
2, C
3, C
4, C
5, C
6, C
7, C
8, C
9, C
10Be core node, working centre node interface of each core node and a backup core node interface.Reservation fiber optic network edge, territory circular diameter L=1600km; Optical fiber link length: E
1C
1=1500km, E
2C
1=1500km, E
3C
5=1500km, E
4C
5=1500km, E
5C
5=1500km, E
6C
9=1500km, E
7C
9=1500km, C
1C
3=1000km, C
1C
2=1000km, C
2C
10=1000km, C
2C
6=2500km, C
2C
8=1800km, C
2C
7=2000km, C
3C
4=1000km, C
4C
5=1500km, C
4C
7=1000km, C
7C
5=2000km, C
6C
5=1500km, C
9C
6=1500km, C
9C
8=1500km, C
10C
9=1000km.
About 20,000,000 square kilometres of reservation fiber optic network geographic area, territory, wireless optical core node height A D=50km, t
EDGEApproximate 2.118ms; C
1C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
1Length D to C
LC1=700km, C
2C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
2Length D to C
LC2=700km, C
3C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
3Length D to C
LC3=400km, C
4C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
4Length D to C
LC4=600km, C
5C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
5Length D to C
LC5=700km, C
6C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
6Length D to C
LC6=600km, C
7C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
7Length D to C
LC7=200km.The control of fast wireless laser communication network integration intelligently massively sending makes each node processing send BHP time cost and is approximately t
Wedu
(1), to E
1Mail to E
3(or E
4, or E
5) bursty data, or to E
2Mail to E
3(or E
4, or E
5) bursty data:
(1) if network state at that time, bursty data can be from source fringe node (E
SOURCE) send, successively by way of C
1, C
3, C
4, C
5Arrive purpose fringe node (E
DESTION); Its BHP is by E
SOURCEMail to W by the fringe node interface through wireless laser communication edge link, again by W to C
1, C
3, C
4, C
5Multicast, at last by relevant downstream core node to adjacency upstream core node through information such as fiber links delivery port, connect.Then: t
Fiber1=7.5ms, t
Fiber2=5ms, t
Fiber3=5ms, t
Fiber4=7.5ms; t
WC1Approximate 1.855ms, t
WC2Approximate 1.066ms, t
WC3Approximate 1.591ms, t
WC4Approximate 1.855ms.
1., offset time setting: t
OFS1=t
S1+ t
W1+ 3.973ms, t
OFS2=t
S1+ t
W1+ 3.184ms, t
OFS3=t
S1+ t
W1+ 3.709ms, t
OFS4=t
S1+ t
W1+ 3.973ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 3.973ms+t
Wedu, t
Fiber1If=7.5ms is t
OFS1+ d
1＞t
Fiber1Set up, then
(i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wedu)＞3.527ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wedu-3.527ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wedu-3.527ms;
Otherwise, t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
Wedu)≤3.527ms, then
(ii), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0;
2., Δ T
WLEEBe not less than (2t
Wedu+ 13.527ms).
(2) if network state at that time, bursty data is from source fringe node (E
SOURCE) send, successively by way of C
1, C
3, C
4, C
7, C
5Arrive the purpose fringe node; Its BHP is by E
SOURCEMail to W by the fringe node interface through wireless laser communication edge link, again by W to C
1, C
3, C
4, C
7, C
5Multicast, at last by relevant downstream core node to adjacency upstream core node through information such as fiber links delivery port, connect.Then: t
Fiber1=7.5ms, t
Fiber2=5ms, t
Fiber3=5ms, t
Fiber4=5ms, t
Fiber5=10ms; t
WC1Approximate 1.855ms, t
WC2Approximate 1.066ms, t
WC3Approximate 1.591ms, t
WC4Approximate 0.546ms, t
WC5Approximate 1.855ms.
1., offset time setting: t
OFS1=t
S1+ t
W1+ 3.973ms, t
OFS2=t
S1+ t
W1+ 3.184ms, t
OFS3=t
S1+ t
W1+ 3.709ms, t
OFS4=t
S1+ t
W1+ 2.664mS, t
OFS5=t
S1+ t
W1+ 3.973ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 3.972ms+t
Wedu, t
Fiber1If=7.5ms is t
OFS1+ d
1＞t
Fiber1Set up, then
(i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wedu)＞3.527ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wedu-3.527ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wedu-3.527ms;
Otherwise, t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
Wedu)≤3.527ms, then
(ii), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0;
2., Δ T
WLEEBe not less than (3t
Wedu+ 18.527ms).
(3) if network state at that time, bursty data is from source fringe node (E
SOURCE) send, successively by way of C
1, C
2, C
7, C
4, C
5Arrive the purpose fringe node; Its BHP is by E
SOURCEMail to W by the fringe node interface through wireless laser communication edge link, again by W to C
1, C
2, C
7, C
4, C
5Multicast, at last by relevant downstream core node to adjacency upstream core node through information such as fiber links delivery port, connect.Then: t
Fiber1=7.5ms, t
Fiber2=5ms, t
Fiber3=10ms, t
Fiber4=5ms, t
Fiber5=7.5ms; t
WC1Approximate 1.855ms, t
Wc2Approximate 1.855ms, t
Wc3Approximate 0.546ms, t
Wc4Approximate 1.591ms, t
Wc5Approximate 1.855ms.
1., offset time setting: t
OFS1=t
S1+ t
W1+ 3.973ms, t
OFS2=t
S1+ t
W1+ 3.973ms, t
OFS3=t
S1+ t
W1+ 2.664ms, t
OFS4=t
S1+ t
W1+ 3.709ms, t
OFS1=t
S1+ t
W1+ 3.973ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 3.973ms+t
Wedu, t
Fiber1If=7.5ms is t
OFS1+ d
1＞t
Fiber1Set up, then
(i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wedu)＞3.527ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wedu-3.527ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wedu-3.527ms;
Otherwise, t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
Wedu)≤3.527ms, then
(ii), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0;
2., Δ T
WLEEBe not less than (3t
Wedu+ 21.027ms).
(4) if network state at that time, bursty data is from source fringe node (E
SOURCE) send, successively by way of C
1, C
2, C
7, C
5Arrive the purpose fringe node; Its BHP is by E
SOURCEMail to W by the fringe node interface through wireless laser communication edge link, again by W to C
1, C
2, C
7, C
5Multicast, at last by relevant downstream core node to adjacency upstream core node through information such as fiber links delivery port, connect.Then: t
Fiber1=7.5ms, t
Fiber2=5ms, t
Fiber3=10ms, t
Fiber4=10ms; t
Wc1Approximate 1.855ms, t
Wc2Approximate 1.855ms, t
Wc3Approximate 0.546ms, t
Wc4Approximate 1.855ms.
1., offset time setting: t
OFS1=t
S1+ t
W1+ 3.973ms, t
OFS2=t
S1+ t
W1+ 3.973ms, t
OFS3=t
S1+ t
W1+ 2.664ms, t
OFS4=t
S1+ t
W1+ 3.973ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 3.973ms+t
Wedu, t
Fiber1If=7.5ms is t
OFS1+ d
1＞t
Fiber1Set up, then
(i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wedu)＞3.527ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wedu-3.527ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wedu-3.527ms;
Otherwise, t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
WE)≤3.527ms, then
(ii), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0;
2., Δ T
WLEEBe not less than (2t
Wedu+ 18.527ms).
(5) if network state at that time, bursty data is from source fringe node (E
SOURCE) send, successively by way of C
1, C
2, C
6, C
5Arrive the purpose fringe node; Its BHP is by E
SOURCEMail to W by the fringe node interface through wireless laser communication edge link, again by W to C
1, C
2, C
6, C
5Multicast, at last by relevant downstream core node to adjacency upstream core node through information such as fiber links delivery port, connect.Then: t
Fiber1=7.5ms, t
Fiber2=5ms, t
Fiber3=12.5ms, t
Fiber4=7.5ms; t
Wc1Approximate 1.855ms, t
Wc2Approximate 1.855ms, t
Wc3Approximate 1.591ms, t
Wc4Approximate 1.855ms.
1., offset time setting: t
OFS1=t
S1+ t
W1+ 3.973ms, t
OFS2=t
S1+ t
W1+ 3.973ms, t
OFS3=t
S1+ t
W1+ 3.709ms, t
OFS4=t
S1+ t
W1+ 3.973ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 3.973ms+t
Wedu, t
Fiber1If=7.5ms is t
OFS1+ d
1＞t
Fiber1Set up, then
(i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wedu)＞3.527ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wedu-3.527ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wedu-3.527ms;
Otherwise, t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
Wedu)≤3.527ms, then
(ii), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0;
2., Δ T
WLEEBe not less than (2t
Wedu+ 16.027ms).
(6), in this reservation territory by source fringe node (E
SOURCE) mail to purpose fringe node (E
DESTION) bursty data:
1., t
CWCBe not more than 10ms;
2., its BHP is by E
SOURCEMail to W by the fringe node interface through wireless laser communication edge link, the associated core node of being handled to edge Burst route by W is through wireless laser communication core link multicast again, at last by relevant downstream core node to adjacency upstream core node through information such as fiber links delivery port, connect;
3., transmit, double bounce has only two lines before in core network through any route:
I, E
SOURCETo C
1, and C
1To C
3, t then
Fiber1=7.5ms, t
Fiber2=5ms;
II, E
SOURCETo C
1, and C
1To C
2, t then
Fiber1=7.5ms, t
Fiber2=5ms;
4., bursty data transmits through any route of reservation territory fiber optic network, its institute is not less than 4, the three through the core node number, and to jump the length minimums be 1000km, the shortest length of remaining jumping figure is 1500km, and by way of C
1, C
3, C
4, C
5Arrive the purpose fringe node together;
5., offset time setting: t
OFS1=t
S1+ t
W1+ 3.973ms, t
OFS2=t
S1+ t
W1+ 3.184ms, t
OFS3=t
S1+ t
W1+ 3.709ms, t
OFS4=t
S1+ t
W1+ 3.973ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 3.973ms+t
Wedu, t
Fiber1If=7.5ms is t
OFS1+ d
1＞t
Fiber1Set up, then
(i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wedu)＞3.527ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wedu-3.527ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wedu-3.527ms;
Otherwise: t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
Wedu)≤3.527ms, then
(ii), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0;
6., Δ T
WLEEBe not less than (2t
Wedu+ 13.527ms).
(2), to E
1Mail to E
6Bursty data, or to E
1Mail to E
7Bursty data, or to E
2Mail to E
6Bursty data, or to E
2Mail to E
7Bursty data, transmit through any route, in core network before double bounce have only two lines:
I, E
SOURCETo C
1, and C
1To C
3, t then
Fiber1=7.5ms, t
Fiber2=5ms;
II, E
SOURCETo C
1, and C
1To C
2, t then
Fiber1=7.5ms, t
Fiber2=5ms;
1., transmit, its institute is not less than 4, the three through the core node number, and to jump the length minimums be 1000km, and by way of C through any route
1, C
2, C
10, C
9Arrive the purpose fringe node together;
2., its BHP is by E
SOURCEMail to W by the fringe node interface through wireless laser communication edge link, the associated core node of being handled to edge Burst route by W is through wireless laser communication core link multicast again, at last by relevant downstream core node to adjacency upstream core node through information such as fiber links delivery port, connect.
3., offset time setting: t
OFS1+ d
1=t
S1+ t
W1+ 3.973ms+t
Wedu, t
Fiber1If=7.5ms is t
OFS1+ d
1＞t
Fiber1Set up, then
(i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wedu)＞3.527ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wedu-3.527ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wedu-3.527ms;
Otherwise, t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
Wedu)≤3.527ms, then
(ii), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0;
4., Δ T
WLEEBe not less than (2t
Wedu+ 13.527ms).
(3), to E
3Mail to E
1Bursty data, or to E
3Mail to E
2Bursty data, or to E
4Mail to E
1Bursty data, or to E
4Mail to E
2Bursty data, or to E
5Mail to E
1Bursty data, or to E
5Mail to E
2Bursty data, with (one) relatively, only direction of transfer is opposite, its resource reservation time cost reduction is with (one)
(4), to E
6Mail to E
1Bursty data, or to E
6Mail to E
2Bursty data, or to E
7Mail to E
1Bursty data, or to E
7Mail to E
2Bursty data, with (one) relatively, only direction of transfer is opposite, its resource reservation time cost reduction is with (three).
(5), to E
6Mail to E
3Bursty data, or to E
6Mail to E
4Bursty data, or to E
6Mail to E
5Bursty data, or to E
7Mail to E
3Bursty data, or to E
7Mail to E
4Bursty data, or to E
7Mail to E
5The preceding double bounce of bursty data be:
(1), E
SOURCETo C
9, and C
9To C
6, t then
Fiber1=7.5m, t
Fiber2=7.5ms, in the remaining reachable path, minimal path is: C
6C
5=1500km propagates BHP time cost t
Fiber3=7.5ms; Its BHP is by E
SOURCEMail to W by the fringe node interface through wireless laser communication edge link, the associated core node of being handled to edge Burst route by W is through wireless laser communication core link multicast again, at last by relevant downstream core node to adjacency upstream core node through information such as fiber links delivery port, connect.Corresponding t
Wc1Approximate 1.066ms, t
Wc2Approximate 1.591ms, t
Wc3Approximate 1.855ms.
1., offset time setting: t
OFS1+ d
1=t
S1+ t
W1+ 3.184ms+t
Wedu, t
Fiber1If=7.5ms is t
OFS1+ d
1＞t
Fiber1Set up, then
(i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wedu)＞4.316ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wedu-4.316ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wedu-4.316ms;
Otherwise, t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
Wedu)≤4.316ms, then
(ii), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0;
2., Δ T
WLEEBe not less than (t
Wedu+ 11.816ms).
(2), E
SOURCETo C
9, and C
9To C
8, t then
Fiber1=7.5ms, t
Fiber2=7.5ms, in the remaining reachable path, minimal path is through C
7, C
5Arrive E
3Or E
4Or E
5, corresponding t
Fiber3=5ms, t
Fiber4=10ms; Its BHP is by E
SOURCEMail to W by the fringe node interface through wireless laser communication edge link, the associated core node of being handled to edge Burst route by W is through wireless laser communication core link multicast again, at last by relevant downstream core node to adjacency upstream core node through information such as fiber links delivery port, connect.Corresponding no t
Wc1Approximate 1.066ms, t
Wc2Approximate 0.546ms, t
Wc3Approximate 0.546ms, t
Wc4Approximate 1.855ms.
1., offset time setting: t
OFS1+ d
1=t
S1+ t
W1+ 3.184ms+t
Wedu, t
Fiber1If=7.5ms is t
OFS1+ d
1＞t
Fiber1Set up, then
(i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wedu)＞4.316ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wedu-4.316ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wedu-4.316ms;
Otherwise, t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
Wedu)≤4.316ms, then
(ii), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0;
2., Δ T
WLEEBe not less than (2t
Wedu+ 16.816ms).
(3), E
SOURCETo C
9, and C
9To C
10, t then
Fiber1=7.5ms, t
Fiber2=5ms, in the remaining reachable path, minimal path is:
1., bursty data is through C
10, C
2, C
6, C
5Arrive;
(i), corresponding t
Fiber3=5ms, t
Fiber4=12.5ms, t
Fiber5=7.5ms; Its BHP is by E
SOURCEMail to W by the fringe node interface through wireless laser communication edge link, the associated core node of being handled to edge Burst route by W is through wireless laser communication core link multicast again, at last by relevant downstream core node to adjacency upstream core node through information such as fiber links delivery port, connect.
(ii), offset time setting: t
OFS1+ d
1=t
S1+ t
W1+ 3.709ms+t
Wedu, t
Fiber1If=7.5ms is t
OFS1+ d
1＞t
Fiber1Set up, then
(iii), draw: t by step I
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wedu)＞3.791ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wedu-3.791ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wedu-3.791ms;
Otherwise, t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
Wedu)≤3.791mS, then
(iv), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0; Δ T
WLEEBe not less than 2t
Wedu+ 16.291ms;
Or:
2., bursty data is through C
10, C
2, C
7, C
5Arrive;
(i), corresponding t
Fiber3=5ms, t
Fiber4=10ms, t
Fibers=10ms; Its BHP is by E
SOURCEMail to W by the fringe node interface through wireless laser communication edge link, the associated core node of being handled to edge Burst route by W is through wireless laser communication core link multicast again, at last by relevant downstream core node to adjacency upstream core node through information such as fiber links delivery port, connect.
(ii), offset time setting: t
OFS1+ d
1=t
S1+ t
W1+ 3.709ms+t
Wedu, t
Fiber1If=7.5ms is t
OFS1+ d
1＞t
Fiber1Set up, then
(iii), draw: t by step I
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wedu)＞3.791ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wedu-3.791ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wedu-3.791ms;
Otherwise, t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
Wedu)≤3.791ms, then
(iv), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0; Δ T
WLEEBe not less than (2t
Wedu+ 18.791ms).
(6), to E
3Mail to E
6Bursty data, or to E
3Mail to E
7Bursty data, or to E
4Mail to E
6Bursty data, or to E
4Mail to E
7Bursty data, or to E
5Mail to E
6Bursty data, or to E
5Mail to E
7Bursty data, with (five) relatively, only direction of transfer is opposite, its resource reservation time cost reduction is with (five).
Example two:
Preengage the territory as shown in figure 12 by the large-scale metropolitan area network that tangential method makes up, fiber optic network edge circular diameter L=200km, optical fiber link length is as follows: E
1C
1=100km, E
2C
1=100km, E
3C
8=100km, E
4C
8=100km, E
5C
6=100km, E
6C
6=100km, C
1C
2=90km, C
2C
3=70km, C
3C
8=70km, C
1C
4=90km, C
4C
5=60km, C
5C
6=80km, C
6C
7=80km, C
7C
8=90km; About 31431.22 square kilometres of reservation fiber optic network geographic area, territory.t
EDGEApproximate 0.264ms, wireless optical core node height A D=0.79km; C
1C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
1Length D to C
LC1=60km, C
2C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
2Length D to C
LC2=90km, C
3C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
3Length D to C
LC3=50km, C
4C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
4Length D to C
LC4=90km, C
5C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
5Length D to C
LC5=70km, C
6C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
6Length D to C
LC6=50km, C
7C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
7Length D to C
LC7=60km, C
8C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
8Length D to C
LC8=90km.The control of fast wireless laser communication network integration intelligently massively sending makes each node processing send BHP time cost and is approximately t
Wb1
(1), to E
1(or E
2) mail to E
3(or E
4) bursty data:
1., by E
1(or E
2) send, through C
1, C
2, C
3, C
8Core node arrives E
3(or E
4); Or 2., by E
1(or E
2) send, through C
1, C
4, C
5, C
6, C
7, C
8Core node arrives E
3(or E
4).More 1. to 2. two potential routes, C
1C
2=C
1C
4So=90km is by route calculation short in the two, resource reservation time cost reduction lower limit as can be known; 2. 1. route be shorter than route, relevant wireless laser communication core link: t
Wc1Approximate 0.158ms, t
Wc2Approximate 0.237ms, t
Wc3Approximate 0.132ms, t
Wc4Approximate 0.237ms; So 3., t
OFS1=t
S1+ t
W1+ 0.422ms, t
OFS2=t
S1+ t
W1+ 0.501ms, t
OFS3=t
S1+ t
W1+ 0.396ms, t
OFS4=t
S1+ t
W1+ 0.501ms is by " summary of the invention three, reservation territory offset time establishing method "; t
OFS1+ d
1=t
S1+ t
W1+ 0.422ms+t
Wb1, t
Fiber1If=0.5ms is t
OFS+ d
1＞t
Fiber1Set up, then (i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wb1)＞0.078ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wb1-0.078ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wb1-0.078ms; Otherwise, t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
Wb1)≤0.078ms, then (ii), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0; 4., Δ T
WLEEBe not less than (2t
Wb1+ 0.778ms).
(2), to E
1(or E
2) mail to E
5(or E
6) bursty data;
1., by E
1(or E
2) send, through C
1, C
4, C
5, C
6Core node arrives E
5(or E
6); Or 2., by E
1(or E
2) send, through C
1, C
2, C
3, C
8, C
7, C
6Core node arrives E
5(or E
6).More 1. to 2. two potential routes, C
1C
2=C
1C
4So=90km is by route calculation short in the two, resource reservation time cost reduction lower limit as can be known; 2. 1. route be shorter than route, relevant wireless laser communication core link: t
Wc1Approximate 0.158ms, t
Wc2Approximate 0.237ms, t
Wc3Approximate 0.185ms, t
Wc4Approximate 0.132ms; So 3., t
OFS1=t
S1+ t
W1+ 0.422ms, t
OFS2=t
S1+ t
W1+ 0.501ms, t
OFS3=t
S1+ t
W1+ 0.449ms, t
OFS4=t
S1+ t
W1+ 0.396ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 0.422ms+t
Wb1, t
Fiber1If=0.5ms is t
OFS1+ d
1＞t
Fiber1Set up, then (i), draw by step 1: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wb1)＞0.078ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wb1-0.078ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wb1-0.078ms; Otherwise, t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
Wb1)≤0.078ms, then (ii), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0; 4., Δ T
WLEEBe not less than (2t
Wb1+ 0.778ms).
(3), to E
3(or E
4) mail to E
5(or E
6) bursty data;
1., by E
3(or E
4) send, through C
8, C
7, C
6Core node arrives E
5(or E
6), relevant wireless laser communication core link: t
Wc1Approximate 0.237ms, t
Wc2Approximate 0.158ms, t
Wc3Approximate 0.132ms; So 2., t
OFS1=t
S1+ t
W1+ 0.501ms, t
OFS2=t
S1+ t
W1+ 0.422ms, t
OFS3=t
S1+ t
W1+ 0.396ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 0.501ms+t
Wb1, t
Fiber1If=0.5ms is t
OFS1+ d
1＞t
Fiber1Set up, then (i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wb1The 0.001ms of)＞-, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wb1+ 0.001ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ v+0.001ms; (ii), Δ T
WLEEBe not less than (t
Wb1+ 0.399ms).
3., by E
3(or E
4) send, through C
3, C
2, C
1, C
4, C
5, C
6Core node arrives E
5(or E
6), relevant wireless laser communication core link: t
Wc1Approximate 0.132ms, t
Wc2Approximate 0.237ms, t
Wc3Approximate 0.158ms, t
Wc4Approximate 0.237ms, t
Wc5Approximate 0.185ms, t
Wc6Approximate 0.132ms; So 4., t
OFS1=t
S1+ t
W1+ 0.396ms, t
OFS2=t
S1+ t
W1+ 0.501ms, t
OFS3=t
S1+ t
W1+ 0.422ms, t
OFS4=t
S1+ t
W1+ 0.501ms, t
OFS5=t
S1+ t
W1+ 0.449ms, t
OFS6=t
S1+ t
W1+ 0.396ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 0.396ms+t
Wb1, t
Fiber1If=0.5ms is t
OFS1+ d
1＞t
Fiber1Set up, then (i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wb1)＞0.104ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wb1-0.104ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wb1-0.104ms; Otherwise, t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
Wb1)≤0.104ms, then (ii), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0; (iii), Δ T
WLEEBe not less than (4t
Wb1+ 1.604ms).
(4), to E
3(or E
4) mail to E
1(or E
2) bursty data, the same E of resource reservation time cost reduction
1(or E
2) mail to E
3(or E
4) bursty data.
(5), to E
5(or E
6) mail to E
1(or E
2) bursty data, the same E of resource reservation time cost reduction
1(or E
2) mail to E
5(or E
6) bursty data.
(6), to E
5(or E
6) mail to E
3(or E
4) bursty data, resource reservation time cost reduction is E roughly the same
3(or E
4) mail to E
5(or E
6) bursty data.
Example three:
Preengage the territory as shown in figure 13 by the medium-scale metropolitan area network that tangential method makes up, fiber optic network edge circular diameter L=90km, optical fiber link length is as follows: E
1C
1=35km, E
2C
1=35km, E
3C
8=35km, E
4C
8=35km, E
5C
6=35km, E
6C
6=35km, E
7C
6=35km, C
1C
2=30km, C
2C
3=30km, C
3C
8=30km, C
8C
9=30km, C
1C
4=30km, C
4C
5=30km, C
5C
6=30km, C
6C
7=30km, C
7C
9=30km; The reservation about 6364.93 square kilometres of t in fiber optic network geographic area, territory
EDGEApproximate 0.119ms, wireless optical core node height A D=0.159km=159m; C
1C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
1Length D to C
LC1=30km, C
2C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
2Length D to C
LC2=20km, C
3C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
3Length D to C
LC3=30km, C
4C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
4Length D to C
LC4=35km, C
5C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
5Length D to C
LC5=30km, C
6C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
6Length D to C
LC6=30km, C
7C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
7Length D to C
LC7=25km, C
8C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
8Length D to C
LC8=20km, C
9C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
9Length D to C
LC9=35km.The control of fast wireless laser communication network integration intelligently massively sending makes each node processing send BHP time cost and is approximately t
Wm1
(1), to E
1(or E
2) mail to E
3(or E
4, or E
7) bursty data:
1., by E
1(or E
2) send, through C
1, C
2, C
3, C
8, C
9Core node arrives E
3(or E
4, or E
7); Or 2., by E
1(or E
2) send, through C
1, C
4, C
5, C
6, C
7, C
9Core node arrives E
3(or E
4, or E
7).3., more 1. to 2. two potential routes, C
1C
2=C
1C
4So=30km is by route calculation short in the two, resource reservation time cost reduction lower limit as can be known; 2. 1. route be shorter than route, so 4., t
OFS1=t
S1+ t
W1+ 0.198ms, t
OFS2=t
S1+ t
W1+ 0.172ms, t
OFS3=t
S1+ t
W1+ 0.198ms, t
OFS4=t
S1+ t
W1+ 0.172ms, t
OFS5=t
S1+ t
W1+ 0.212ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 0.198ms+t
Wm1, t
Fiber1If=0.175ms is t
OFS1+ d
1＞t
Fiber1Set up, then (i), draw by step I: t
OFS+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wm1The 0.023ms of)＞-, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wm1+ 0.023ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
St+ t
W1+ t
Wm1+ 0.023ms.(iii), Δ T
WLEEBe not less than (3t
Wm1+ 0.427ms).
(2), to E
1(or E
2) mail to E
5(or E
6) bursty data:
1., by E
1(or E
2) send, through C
1, C
4, C
5Core node arrives E
5(or E
6); Or 2., by E
1(or E
2) send, through C
1, C
2, C
3, C
8, C
9, C
7, C
6, C
5Core node arrives E
5(or E
6).3., more 1. to 2. two potential routes, C
1C
2=C
1C
4So=30km is by route calculation short in the two, resource reservation time cost reduction lower limit as can be known; 2. 1. route be shorter than route, so 4., t
OFS1=t
S1+ t
W1+ 0.198ms, t
OFS2=t
S1+ t
W1+ 0.212ms, t
OFS3=t
S1+ t
W1+ 0.198ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 0.198ms+t
Wm1, t
Fiber1If=0.175ms is t
OFS1+ d
1＞t
Fiber1Set up, then (i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wm1The 0.023ms of)＞-, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wm1+ 0.023ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wm1+ 0.023ms.(iii)、ΔT
WLEE(t
wm1+0.127ms)。
(3), to E
3(or E
4, or E
7) mail to E
5(or E
6) bursty data:
1., by E
3(or E
4, or E
7) send, through C
9, C
7, C
6, C
5Core node arrives E
5(or E
6); Or 2., by E
3(or E
4, or E
7) send, through C
9, C
8, C
3, C
2, C
1, C
4, C
5Core node arrives E
5(or E
6).3., more 1. to 2. two potential routes, C
9C
7=C
9C
8So=30km is by route calculation short in the two, resource reservation time cost reduction lower limit as can be known; 2. 1. route be shorter than route, so 4., t
OFS1=t
S1+ t
W1+ 0.212ms, t
OFS2=t
S1+ t
W1+ 0.185ms, t
OFS3=t
S1+ t
W1+ 0.198ms, t
OFS4=t
S1+ t
W1+ 0.198ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 0.212ms+t
Wm1, t
Fiber1If=0.175ms is t
OFS+ d
1＞t
Fiber1Set up, then (i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wm1The 0.037ms of)＞-, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wm1+ 0.037ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wm1+ 0.037ms.(iii), Δ T
WLEEBe not less than (2t
Wm1+ 0.263ms).
(4), to E
3(or E
4, or E
7) mail to E
1(or E
2) bursty data:
1., by E
3(or E
4, or E
7) send, through C
9, C
8, C
3, C
2, C
1Core node arrives E
1(or E
2); Or 2., by E
3(or E
4, or E
7) send, through C
9, C
7, C
6, C
5, C
4, C
1Core node arrives E
1(or E
2).More 1. to 2. two potential routes, C
9C
8=C
9C
7So=30km is by route calculation short in the two, resource reservation time cost reduction lower limit as can be known; 2. 1. route be shorter than route, so 3., t
OFS1=t
S1+ t
W1+ 0.212ms, t
OFS2=t
S1+ t
W1+ 0.172ms, t
OFS3=t
S1+ t
W1+ 0.198ms, t
OFS4=t
S1+ t
W1+ 0.172ms, t
OFS5=t
S1+ t
W1+ 0.198ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 0.198ms+t
Wm1, t
Fiber1If=0.175ms is t
OFS1+ d
1＞t
Fiber1Set up, then t
OFS1+ d
1=t
S1+ t
W1+ 0.212ms+t
Wm1, t
Fiber1If=0.175ms is t
OFS1+ d
1＞t
Fiber1Set up, then (i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
wThe 0.037ms of)＞-, then Δ T
Offst1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wm1+ 0.037ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wm1+ 0.037ms.(iii), Δ T
WLEEBe not less than (3t
Wm1+ 0.413ms).
(5), to E
5(or E
6) mail to E
1(or E
2) bursty data:
1., by E
5(or E
6) send, through C
5, C
4, C
1Core node arrives E
1(or E
2); Or 2., by E
5(or E
6) send, through C
5, C
6, C
7, C
9, C
8, C
3, C
2, C
1Core node arrives E
1(or E
2).3., more 1. to 2. two potential routes, C
5C
4=C
5C
6So=30km is by route calculation short in the two, resource reservation time cost reduction lower limit as can be known; 2. 1. route be shorter than route, so 4., t
OFS1=t
S1+ t
W1+ 0.198ms, t
OFS2=t
S1+ t
W1+ 0.212ms, t
OFS3=t
S1+ t
W1+ 0.198ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 0.198ms+t
Wm1, t
Fiber1If=0.175ms is t
OFS1+ d
1＞t
Fiber1Set up, then (i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wm1The 0.023ms of)＞-, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wm1+ 0.023ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wm1+ 0.023ms.(iii), Δ T
WLEEBe not less than (t
Wm1+ 0.127ms).
(6), to E
5(or E
6) mail to E
3(or E
4, or E
7) bursty data:
1., by E
5(or E
6) send, through C
5, C
6, C
7, C
9Core node arrives E
3(or E
4, or E
7); Or 2., by E
5(or E
6) send, through C
5, C
4, C
1, C
2, C
3, C
8, C
9Core node arrives E
3(or E
4, or E
7).3., more 1. to 2. two potential routes, C
9C
7=C
9C
8So=30km is by route calculation short in the two, resource reservation time cost reduction lower limit as can be known; 2. 1. route be shorter than route, so 4., t
OFS1=t
S1+ t
W1+ 0.198ms, t
OFS2=t
S1+ t
W1+ 0.198ms, t
OFS3=t
S1+ t
W1+ 0.185ms, t
OFS4=t
S1+ t
W1+ 0.212ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 0.198ms+t
Wm1, t
Fiber1If=0.175ms is t
OFS1+ d
1＞t
Fiber1Set up, then (i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
Wm1The 0.023ms of)＞-, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
Wm1+ 0.023ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
Wm1+ 0.023ms.(iii), Δ T
WLEEBe not less than (2t
Wm1+ 0.277ms).
Example four:
Preengage the territory as shown in figure 14 by the small-sized metropolitan area network that tangential method makes up, its fiber optic network edge circular diameter L=40km, optical fiber link length is as follows: C
1C
2=20km, C
2C
3=20km, C
3C
6=20km, C
1C
4=20km, C
4C
5=20km, C
5C
6=20km, E
1C
1=30km, E
2C
1=30km, E
3C
1=30km, E
4C
6=30km, E
5C
6=30km, E
6C
6=30km; About 1257.3 square kilometres of reservation fiber optic network geographic area, territory.t
EDGEApproximate 0.053ms, wireless optical core node height A D=0.0314km=31.4m; C
1C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
1Length D to C
LC1=15km, C
2C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
2Length D to C
LC2=16km, C
3C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
3Length D to C
LC3=15km, C
4C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
4Length D to C
LC4=17km, C
5C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
5Length D to C
LC5=15km, C
6C on the intersection of the reservation territory lateral projection plane friendship ground surface of decision
6Length D to C
LC6=16km; The control of fast wireless laser communication network integration intelligently massively sending makes each node processing send BHP time cost and is approximately t
W11
(1), to E
1(or E
2, or E
3) mail to E
4(or E
5, or E
6) bursty data:
1., by E
1(or E
2, or E
3) send, through C
1, C
2, C
3, C
6Core node arrives E
4(or E
5, or E
6), corresponding offset time setting: t
OFS1=t
S1+ t
W1+ 0.093ms, t
OFS2=t
S1+ t
W1+ 0.096ms, t
OFS3=t
S1+ t
W1+ 0.093ms, t
OFS4=t
S1+ t
W1+ 0.096ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 0.093ms+t
W11, t
Fiber1If=0.15ms is t
OFS1+ d
1＞t
Fibr1Set up, then (i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
W11)＞0.057ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
W11-0.057ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
W11-0.057ms; Otherwise, t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
W11)≤0.057ms, then (ii), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0; (iii), Δ T
WLEEBe not less than (2t
W11+ 0.257ms).
2., by E
1(or E
2, or E
3) send, through C
1, C
4, C
5, C
6Core node arrives E
4(or E
5, or E
6), corresponding offset time setting; t
OFS1=t
S1+ t
W1+ 0.093ms, t
OFS2=t
S1+ t
W1+ 0.098ms, t
OFS3=t
S1+ t
W1+ 0.093ms, t
OFS4=t
S1+ t
W1+ 0.096ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 0.093ms+t
W11, t
Fiber1If=0.15ms is t
OFS1+ d
1＞t
Fiber1Set up, then (i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
W11)＞0.057ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
W11-0.057ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
W11-0.057ms; Otherwise, t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
W11)≤0.057ms, then (ii), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0; (iii), Δ T
WLEEBe not less than (2t
W11+ 0.257ms).
(2), to E
4(or E
5, or E
6) mail to E
1(or E
2, or E
3) bursty data:
1., by E
4(or E
5, or E
6) send, through C
6, C
3, C
2, C
1Core node arrives E
1(or E
2, or E
3), corresponding offset time setting: t
OFS1=t
S1+ t
W1+ 0.096ms, t
OFS2=t
S1+ t
W1+ 0.093ms, t
OFS3=t
S1+ t
W1+ 0.096ms, t
OFS4=t
S1+ t
W1+ 0.093ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 0.096ms+t
W11, t
Fiber1If=0.15ms is t
OFS1+ d
1＞t
Fiber1Set up, then (i), draw by step I: t
OFS1+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
W11)＞0.054ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
W11-0.054ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=t
S1+ t
W1+ t
W11-0.054ms; Otherwise, t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
W11)≤0.054ms, then (ii), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0; (iii), Δ T
WLEEBe not less than (2t
W11+ 0.257ms).
2., by E
4(or E
5, or E
6) send, through C
6, C
5, C
4, C
1Core node arrives E
1(or E
2, or E
3), corresponding offset time setting: t
OFS1=t
S1+ t
W1+ 0.096ms, t
OFS2=t
S1+ t
W1+ 0.093ms, t
OFS3=t
S1+ t
W1+ 0.098ms, t
OFS4=t
S1+ t
W1+ 0.093ms is by " summary of the invention three, reservation territory offset time establishing method ": t
OFS1+ d
1=t
S1+ t
W1+ 0.096ms+t
W11, t
Fiber1If=0.15ms is t
OFS+ d
1＞t
Fiber1Set up, then (i), draw by step I: t
OFS+ d
1＞t
Fiber1, i.e. (t
S1+ t
W1+ t
W11)＞0.054ms, then Δ T
Offset1=t
OFS1+ d
1-t
Fiber1, i.e. Δ T
Offset1=t
S1+ t
W1+ t
W11-0.054ms, jump procedure III; The redirect condition is false, so jump procedure IV, Δ T
Offset2=0, jump procedure IX; The redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset1=t
S1+ t
W1+ t
W11-0.054ms; Otherwise, t
OFS1+ d
1≤ t
Fiber1Certain establishment draws (t by Step II
S1+ t
W1+ t
W11)≤0.054ms, then (ii), jump procedure V, (t
OFS2+ d
2)＞(t
Fiber1+ t
Fiber2), with Step II contradiction as a result, the redirect condition is false; So jump procedure VI, Δ T
Offset2=0, jump procedure XIII, the redirect condition is false, and follow-up redirect condition all is false, and finishes; Thereby T
Offset=0; (iii), Δ T
WLEEBe not less than (2t
W11+ 0.257ms).
Beneficial effect of the present invention: the present invention introduces wireless light communication network technology Bing Rong first and is the reservation territory in the light burst-switched, than it pure optical fiber OBS network, the present invention has reduced BHP reserve resource required time cost effectively, quickened resource reservation, reduced effectively Burst data transmit in reservation operation to the consumption of network capacity, increase the resource reservation disposal ability of network; Simultaneously, adopting the wireless laser communication network as the reservation network, increased the wavelength resource of reservation, is the effective means that solves the packet loss that brings because of shortage such as resource reservation bandwidth; And the wireless laser communication network can be independent of the fiber optic network of handling burst packet to be operated, and makes that the OBS network extensibility is strengthened greatly, thereby makes restriction OBS obtain huge improvement in the technical factor of the application of large scale network.
The reservation operating mechanism of pure optical fiber OBS network is a serial mechanism, BHP each node on the relevant route of certain this bursty data transmission transmits one by one and confirms, after configuring resource such as port wavelength, rewrite the BHP related content, forward then and handle until destination node.Reservation territory resource reservation parallel mechanism, BHP mails to the wireless optical core node by the wireless laser fringe node by wireless laser communication edge link, through wireless optical core node each core node multicast BHP to the processing of edge Burst route, at last, handle the BHP that wireless optical core node is sent by each core node parallel receive that edge Burst route is handled, the notice that correlation procedure comprises notice downstream node receiving port and receives upstream node can walk abreast simultaneously and take place and processing.Thereby when ensureing reservation function, can simplify the BHP structure, reduce the data volume that reserve resource need transmit; Parallel reservation operating mechanism is reduced the required offset time of operation significantly in the reservation territory, and minimum offset time is zero, and dynamic range is increased greatly.The network spatial multiplexing gain is highly improved.Under the certain situation of traffic matrix, won the time for taking the QoS safeguard; Also promoted the ability of network processes greater amount business.
Fringe node only sends wireless laser signal BHP by the fringe node interface, and core node receives only wireless laser signal BHP by the core node interface, has simplified network device interface, is convenient to realize and control and management.The wired light resources and the wireless laser resource that belong to each node are dispatched, distribute, are managed by the same resource distribution module unification of each node, the wireless laser communication network of same quality, homology and the seamless wide band elastic of fiber optic network are integrated interconnected, realized that optical-fiber network is integrated, improved the quality of the OBS network operation and the ability of supporting business effectively.
Each fringe node or core node all are to be managed by the center to the incident of this node, except first living again the sustainability guarantee that backup provides, the arbitrary end fiber port that is different from optical fiber link damages and will cause Peer-Port can't use before artificial replacing non-working port, wireless laser communication link between edge transmit port and the core collection of letters port, when a port damages therein, can be again set up the wireless laser communication link automatically, thereby obtain the second sustainability guarantee of living again with another idle port of node that damages the port place.
The present invention is used for wide area network and metropolitan area network etc., all can obtain good result.
Claims (5)
1. method of utilizing wireless light communication to quicken light burst-switched resource reservation, it is characterized in that: in the light burst-switched, introduce the packets headers that the wireless light communication network transmits burst group, promptly in the light burst-switched, introduce the control grouping BHP that the wireless light communication network transmits burst group, is that one makes up the reservation territory with the pure fiber optic network that transmits the bursty data grouping with the wireless light communication Wang Luo Rong that transmits BHP, by reservation territory resource reservation parallel mechanism, BHP mails to the wireless optical core node by fringe node by wireless laser communication edge link, through wireless optical core node each core node multicast BHP to the processing of edge Burst route, at last, handle the BHP that the wireless optical core node is sent by each core node parallel receive that edge Burst route is handled, finish light burst-switched resource reservation.
2. utilize wireless light communication to quicken the method for light burst-switched resource reservation according to one kind of claim 1, the pure fiber optic network that transmits the bursty data grouping is the territory of structure reservation integratedly with the wireless light communication Wang Luo Rong that transmits BHP, and it is characterized in that: the reservation territory is made of a reservation territory wireless optical core node and the backup of wireless optical core node, some fringe nodes and some core nodes;
Determine reservation fiber optic network edge, territory circle and reservation fiber optic network center, territory according to business demand, the shortest line arc of two nodes on the face of land of thinking the maximum outreach that satisfies business demand and design is reservation fiber optic network edge, territory circular diameter, mid point with reservation fiber optic network edge, territory circular diameter is made the round heart in reservation fiber optic network edge, territory, promptly preengage fiber optic network center, territory, reservation fiber optic network edge, territory circular diameter is around the reservation round heart in fiber optic network edge, territory and the earth's core line, promptly preengage the territory main shaft, the earth surface that the surfaces of revolution is contained that rotation forms is long-pending to be exactly to preengage fiber optic network geographic area, territory, then, do reservation fiber optic network edge, territory circle is gone up any and the earth's core line arbitrarily, do this by the tangent line of the face of land to aerial liftoff direction, this tangent line determines to place wireless optical core node position with reservation territory main shaft intersection point for reservation fiber optic network geographic area, territory;
The female coupling tap body that the reservation territory effectively covers just by the edge circularly the right-angled triangle that surrounded of heart line, edge circle cut-in without ball line, reservation territory main shaft form around reservation territory main axis rotation, circle cut-in without ball line in edge is exactly the ideal position of placement wireless optical core node with the intersection point of reservation territory main shaft; Cutting reservation territory, reservation fiber optic network geographic area, territory effectively covers limit female coupling tap body, and will preengage the territory and effectively cover limit female coupling tap body and be divided into space segment and geoid part, pick out the fiber optic network geographic area, reservation territory that the reservation territory effectively covers the contained geoid of limit female coupling tap body and effectively cover for preengaging the territory with the space segment between the wireless optical core node;
In the reservation territory effectively covers, obtain design construction reservation field parameter by tangential method; When wireless optical core node height requirement result of calculation less than the reservation fiber optic network geographic area, territory in the object height, thereby when calculating location is placed the wireless optical core node and can be made that some nodes of reservation territory fiber optic network are blocked with wireless optical core node link: step 1: as if not changing wireless optical core node height, in the reservation sky, fiber optic network geographic area, the territory set-point of selected wireless optical core node again, can avoid this object stopping to the wireless laser communication link, and each node can obtain the service with quality in the fiber optic network of reservation territory, then center on the limit operating distance of wireless laser communication distance between this position calculation node, calculating establishment reservation territory and operation price are required, New-deployed Network are also comprised consideration and the interactive result's of fiber lengths calculating; Step 2: if do not change wireless optical core node height, in the reservation sky, fiber optic network geographic area, the territory set-point of selected wireless optical core node again, can not avoid this object stopping to the wireless laser communication link, then do not change reservation territory main shaft, after only promoting wireless optical core node certain altitude, make the wireless laser communication link can just avoid stopping of all objects, make reservation territory interior each node of fiber optic network can obtain required service, then, limit operating distance around wireless laser communication distance between this position calculation node, calculating establishment reservation territory and operation price are required, New-deployed Network are also comprised consideration and the interactive result's of fiber lengths calculating; Step 3: if do not change wireless optical core node height, in the reservation sky, fiber optic network geographic area, the territory set-point of selected wireless optical core node again, can not avoid this object stopping to the wireless laser communication link, then after promoting wireless optical core node height, reset reservation territory main shaft, make the wireless laser communication link can avoid stopping of all objects, and the lifting capacity minimum of required lifting wireless optical core node height, make reservation territory interior each node of fiber optic network can obtain required service, then, limit operating distance around wireless laser communication distance between this position calculation node, calculating establishment reservation territory and operation price are required, New-deployed Network are also comprised consideration and the interactive result's of fiber lengths calculating; Step 4: if serve as that reservation territory main shaft passes through the position with this object position, height with this object is a wireless optical core node height, can avoid all objects stopping to the wireless laser communication link, make reservation territory interior each node of fiber optic network can obtain required service, then center on the limit operating distance of wireless laser communication distance between this position calculation node, calculating establishment reservation territory and operation price are required, New-deployed Network are also comprised consideration and the interactive result's of fiber lengths calculating; Step 5: for brand-new establishment reservation territory, under the prerequisite that can satisfy business demand, suitably in design, receive or the fibre web network each several part of giving out light, set by step one, step 2, step 3, step 4, repeatedly calculate; Step 6: built pure fiber optic network to transforming, set by step one, step 2, step 3, step 4, to have calculated once; Step 7: node location can be optimized set-point in the selected back of main shaft, reservation territory, and the reservation territory is set up in calculating and the operation price is required; Step 8: relatively above each result, select the optimum scheme to realize.
3. utilize wireless light communication to quicken the method for light burst-switched resource reservation according to one kind of claim 1, the offset time of reservation territory operation is set, and it is characterized in that: the burst-switched resource reservation is set offset time by the offset time submodule of fringe node by reservation territory offset time establishing method.
4. utilize wireless light communication to quicken the method for light burst-switched resource reservation according to one kind of claim 1, the robust control operation in reservation territory, it is characterized in that: in service in the reservation territory, system is that each node is with sub-category configuration effort wireless laser communication links such as Network demands, configuration backup wireless laser communication link, dispose the free backup port group that free backup port constitutes, each free backup port in each free backup port group all possesses certain maneuverability, be configured to certain class various-service, the existence protection is provided, when wherein the local port of arbitrary work wireless laser communication link breaks down, can rebuild the chain-circuit system operation with the respective classes port of end points is finished;
Each port contains some wavelength and makes professional transport vehicle, and port divides the different port classification with the class of service of its service; For a certain port of guaranteeing work wireless laser communication link one end breaks down, when promptly this port can not be worked, can the provide safeguard service of quality of reservation territory, the survivability strategy is specified according to business demand in the reservation territory, by the survivability strategy, select the existence scheme, carry out the existence operation;
The existence scheme comprises existence scheme one or existence scheme two or existence scheme three; Existence scheme one: system carries out business immediately by the handover operation of fault wireless laser communication link switchover to proprietary backup wireless laser communication link, keeps network and normally moves; Simultaneously, but as the port of peer node operate as normal still, then can on the basis of built-in quick fault-finding location, damage the port classification by interdependent node by originating port and handle accordingly; If this classification also has assignable free backup port in the free backup port group of the affiliated node of originating port damage port, this node just distributes a free backup port in the free backup port group of respective classes, but that port of the still operate as normal of the peer node of node is rebuild the wireless laser communication link therewith, makes respective classes backup wireless laser communication link; So classification has not had assignable free backup port, but then still that port of operate as normal just become the free backup port of respective classes of peer node, be included into the free backup port group of respective classes; Port as peer node also breaks down simultaneously, and then system only makes hand-off process; Existence scheme two: system distributes a backup wireless laser communication link to replace fault wireless laser communication link in respective classes backup wireless laser communication link group, keeps network and normally moves; Simultaneously, but as the port of peer node operate as normal still, then can on the basis of built-in quick fault-finding location, damage the port classification by interdependent node by originating port and handle accordingly; If this classification also has assignable free backup port in the free backup port group of the affiliated node of originating port damage port, this node just distributes a free backup port in the free backup port group of respective classes, but that port of the still operate as normal of the peer node of node is rebuild the wireless laser communication link therewith, and is included into respective classes backup wireless laser communication link group; So classification has not had assignable free backup port, but then still that port of operate as normal just become the free backup port of respective classes of peer node, be included into the free backup port group of respective classes; Port as peer node also breaks down simultaneously, and then system only does to distribute a backup wireless laser communication link to replace fault wireless laser communication link relevant treatment; Existence scheme three: the backup wireless laser communication link of replaceable work wireless laser communication link when this scheme is not built work wireless laser communication link occurs fault in advance in, but as the port of peer node operate as normal still, then can on the basis of built-in quick fault-finding location, damage the port classification by interdependent node by originating port and handle accordingly; If this classification also has assignable free backup port in the free backup port group of the affiliated node of originating port damage port, this node just distributes a free backup port in the free backup port group of respective classes, but that port of the still operate as normal of the peer node of node is rebuild the wireless laser communication link therewith, system is a work wireless laser communication link to rebuild the wireless laser communication link, makes associative operation around rebuilding the wireless laser communication link; Port as peer node also breaks down simultaneously, and then system respectively distributes a free backup port simultaneously in the free backup port group of both sides, and finishes reconstruction wireless laser communication link associative operation;
When breaking down, carry out the existence operation, the existence operation comprises the wireless laser communication edge link existence operation based on the fringe node interface, wireless laser communication edge link existence operation based on the wireless optical core node, based on the wireless laser communication core link existence operation of wireless optical core node, based on the wireless laser communication core link existence operation of core node interface.
5. utilize wireless light communication to quicken the method for light burst-switched resource reservation according to one kind of claim 1, transmission and reception around BHP in the reservation territory are handled, it is characterized in that: behind wireless laser communication edge link initialization and wireless laser communication core link initialization, follow wireless laser communication edge link maintenance operation, fringe node is finished each BHP edge wireless laser signal and is formed, can obtain authority by the fringe node resource distribution module according to the BHP resource classifies BHP, and according to current resource occupation situation scheduling, be respectively each BHP and finish predetermined edge wireless laser channel, after the edge wireless laser closes the mode piece and closes ripple, finish the transmission of the wireless laser signal of BHP by edge wireless laser resource reservation signal emission module;
BHP is after wireless laser communication edge link transfers to the wireless optical core node, received by core wireless laser resource reservation signal receiving module, behind core wireless laser partial wave module partial wave, each wireless laser BHP is admitted to core wireless laser photoelectricity modular converter and carries out light-to-current inversion, direct regenerate electrical signals BHP, take out the core node address information of handling by edge Burst route by core wireless laser controlling logic module again, the BHP resource that cooperates core wireless laser node resource distribution module to send according to each node can obtain authority with BHP comprehensively classification once more, and according to current resource occupation situation queue scheduling, generate each BHP multicast tree, follow the core link maintenance operation, the wireless laser communication core channel of predetermined BHP; The formation regeneration wireless laser signal BHP of the core wireless laser signal by BHP after core wireless laser composite wave module is closed ripple, is sent completely the processing of wireless optical core node to BHP by the core wireless laser signal of BHP;
Core wireless laser composite wave module to each each branch of BHP multicast tree in the parallel independent process of the mapping in wireless laser territory, on the pairing wireless laser communication link of each branch, close of wireless laser signal BHP parallel work-flow predetermined core channel and the corresponding scheduling of mode piece by the corresponding core wireless laser to going to same purpose fiber optic core node, the wireless laser resource reservation signal that closes behind the ripple is delivered to the three-dimensional switching regulator exchange of core wireless laser multicast array, be sent to the core node that edge Burst route is handled by multiast radio laser resource reservation signal emission module multicast;
The core node interface is finished core node reception wireless laser signal BHP and the wireless laser signal BHP that receives is converted to core node by the operation of additional wireless laser resource reservation signal receiving module, coupling module etc. and can carry out the signal that next step resource reservation is handled;
Handle the BHP that the wireless optical core node sends by each core node parallel receive that edge Burst route is handled, after each upstream core node that edge Burst route is handled is handled the BHP that receives separately, core node sends corresponding port information downstream at once, set up binding, and correlation procedure comprises that notifying downstream node receiving port and the notice that receives upstream node to walk abreast takes place and processing.
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| CN101282175B (en) * | 2008-05-16 | 2012-07-04 | 西安理工大学 | Free space MIMO optical communication system based on vertical demixing time space |
| CN101370314B (en) * | 2008-10-10 | 2011-08-10 | 江苏大学 | Resource reservation method based on intra-domain network state perception in optical burst exchange |
| CN113014407A (en) * | 2019-12-19 | 2021-06-22 | 中兴通讯股份有限公司 | Business resource analysis method, electronic device and storage medium |
| CN111277316B (en) * | 2019-12-27 | 2021-05-25 | 北京邮电大学 | Data transmission method, device and system based on optical burst switching network |
| CN113938214A (en) * | 2020-07-13 | 2022-01-14 | 瑞昱半导体股份有限公司 | Fiber optic network methods and related apparatus |
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| CN1716824A (en) * | 2004-06-14 | 2006-01-04 | 电子科技大学 | Method for resoving light burst resource conflict |
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Effective date of registration: 20120625 Address after: 610041, Sichuan, Qingyang province Chengdu Dragon Industrial Port - High-tech Zone A District 2 Patentee after: Chengdu Rongle Laser Technology Co.,Ltd. Address before: 610054 research building, four Electronic Technology University, two section, Jianshe North Road, Chengdu, Sichuan, Chenghua District 704 Patentee before: Cai Ran |