CN105634990B - Based on the continuous method for obligating resource of time frequency spectrum, device and processor - Google Patents
Based on the continuous method for obligating resource of time frequency spectrum, device and processor Download PDFInfo
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Abstract
The invention discloses one kind to be based on the continuous method for obligating resource of time frequency spectrum, device and processor.Wherein, this method comprises: the request signal of the business of reception, the frequency spectrum resource block of alternative link and alternative link is determined according to request signal, the conduct standby resources block for meeting request signal is chosen from frequency spectrum resource block, and the time frequency spectrum successive value TSC of standby resources block is obtained, at least one the reserved resource of resource block to be allocated corresponding with the TSC for meeting preset condition as business is selected from standby resources block.Through the invention, it solves the problems, such as suitably distribute based on frequency spectrum resource under the flexible optical-fiber network of software definition.
Description
Technical field
The present invention relates to optical-fiber network frequency spectrum resources to distribute field, continuous based on time frequency spectrum in particular to one kind
Method for obligating resource, device and processor.
Background technique
With booming, network faces high bandwidth, the business demand to happen suddenly by force and the challenge of Internet service, urgently
It needs that there is more dynamic, efficient feature.Support that the flexible optical-fiber network of frequency spectrum that utilizes of spectrum efficient is taken advantage of a situation generation.In frequency spectrum spirit
In optical-fiber network living, by using OFDM (Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexing
With) technology, it can be that varigrained teleservice dynamically distributes corresponding suitable resource based on certain strategy dynamic,
To improve the utilization rate and service transmission rate of resources in network.Relative to traditional WDM (Wavelength
Division Multiplexing, wavelength-division multiplex) network, the advantage of the flexible optical-fiber network of frequency spectrum is that it breaks through original optical-fiber network
The flexibility of grid is realized in the limitation of fixed-grid, can more preferably be realized the matching and flexible transmission of business, be improved the benefit of frequency spectrum
With rate.And due to the appearance of SDON (Software Defined Optical Network, software definition optical-fiber network), it advances
The differentiation of network control planes.SDON can be such that software operates in network operating system, become the control of optical-fiber network more
It is flexibly and motor-driven, simultaneously because client can plough fine-grained control network by the calling of interface the characteristics of its interface opening
Resource.
On the other hand, with the fast development of the extensive use of the broadband services such as HD video, cloud service and data center,
The new service request that can overcome initial delay makes the grid computing of tremendous contribution such as video on demand and to network, pushes
The improvement of bottom-layer network.In order to endure initial delay, resource reservation is a necessary selection.Ensure resource in business
It is assigned before terminating, what resource reservation distribution was different from common resource allocation is that resource reservation is permitted at the beginning of business is established
Perhaps specific initial delay.Following flexible optical-fiber network of frequency spectrum can support that resource reservation is trend of the times.
EON (Elastic Optical Network, the flexible optical-fiber network of frequency spectrum) uses O-OFDM (Optical-
Orthogonal Frequency Division Multiplexing, light orthogonal frequency division multiplexing) technology, by flexibly dynamic
Mode distributes frequency spectrum resource and supports channel operation asynchronous transmission rate.Under such a flexible architecture, optical fiber frequency spectrum is by into one
Step is divided into a series of narrower frequency spectrum of bandwidth.However, the foundation and dismounting of dynamic route will under a dynamic service scene
The AR on frequency spectrum fragment, especially time dimension can be inevitably caused to request.Since frequency spectrum resource distribution excessively disperses, frequency
Spectrum resource fragment can not carry later business；Frequency spectrum resource fragment is greatly lowered network spectrum resource utilization, because very
More idle frequency spectrum resources be all in the form of dispersing discrete wavelength coverage existing for, can not be re-used or again sharp
Probability very little, in the utilization rate for being reduction of network spectrum resource, most research is all focused in WDM network before
Resource reservation.
The method about resource reservation in the flexible optical-fiber network of frequency spectrum is referred in the related art, but only considered one
Dimension, i.e. link dimension.Scheduling of resource related to time is related in the related technology, but only highlights time itself, and
Have ignored the appropriate distribution of frequency spectrum.
Aiming at the problem that cannot suitably be distributed based on frequency spectrum resource under the flexible optical-fiber network of software definition in the related technology, at present
Not yet put forward effective solutions.
Summary of the invention
The present invention provides one kind to be based on the continuous method for obligating resource of time frequency spectrum, device and processor, at least to solve
The problem of certainly cannot suitably being distributed based on frequency spectrum resource under the flexible optical-fiber network of software definition in the related technology.
According to an aspect of the present invention, it provides a kind of based on the continuous method for obligating resource of time frequency spectrum, comprising: receive
The request signal of business determines the frequency spectrum resource block of alternative link and alternative link according to request signal；From frequency spectrum resource block
The conduct standby resources block for meeting request signal is chosen, and obtains the time frequency spectrum successive value TSC of standby resources block；From spare money
At least one the reserved resource of resource block to be allocated corresponding with the TSC for meeting preset condition as business is selected in source block.
Preferably, request signal carries following information: the time window of business and the data amount information of business；Wherein, industry
The time window of business and the data amount information of business are used to determine the carrying information of business；At least one is selected from standby resources block
Resource block to be allocated corresponding with the TSC for meeting preset condition includes: to determine according to carrying information as the reserved resource of business
The reserved resource of business.
Preferably, the conduct standby resources block for meeting request signal is chosen from frequency spectrum resource block, and obtains standby resources
The time frequency spectrum successive value TSC of block includes: the data volume letter that the time window and business that meet business are chosen from frequency spectrum resource block
Breath is used as standby resources block, and the time frequency spectrum successive value TSC of standby resources block is calculated by the product between A and B；Its
In, A is the frequency spectrum dimension of standby resources block and the percentage of time dimension usable spectrum, and B is in standby resources block along frequency axis
With the joint average value of the idle frequency spectrum block of time shaft.
Preferably, according to carrying information determine business reserved resource include: the TSC of resource block to be allocated take and
Operation, obtains TSC and value, chooses reserved resource of the resource block to be allocated corresponding to the maximum value of TSC and value as business；Its
In, resource block to be allocated includes at least one standby resources block.
Preferably, this method further include: the reserved resource according to business loads business.
According to another aspect of the present invention, it provides a kind of based on the continuous resource reservation device of time frequency spectrum, comprising: connect
Module is received, for receiving the request signal of business, the frequency spectrum resource block of alternative link and alternative link is determined according to request signal；
Module is obtained, for choosing the conduct standby resources block for meeting request signal from frequency spectrum resource block, and obtains standby resources block
Time frequency spectrum successive value TSC；Determining module, for selecting at least one from standby resources block and meeting preset condition
Reserved resource of the corresponding resource block to be allocated of TSC as business.
Preferably, request signal carries following information: the time window of business and the data amount information of business；Wherein, industry
The time window of business and the data amount information of business are used to determine the carrying information of business；It is selected at least from the standby resources block
One resource block to be allocated corresponding with the TSC for meeting preset condition includes: according to carrying information as the reserved resource of business
Determine the reserved resource of business.
Preferably, obtaining module includes: first choice module, for choosing the time for meeting business from frequency spectrum resource block
The conduct standby resources block of window and the data amount information of business；First computing module, for being calculated by the product between A and B
The time frequency spectrum successive value TSC of standby resources block out；Wherein, A is the frequency spectrum dimension and time dimension available frequency of standby resources block
The percentage of spectrum, B are the joint average value in standby resources block along frequency axis and the idle frequency spectrum block of time shaft.
Preferably, determining module includes: the second computing module, is taken for the TSC to resource block to be allocated and operation,
Obtain TSC and value；Second selecting module, for choosing resource block to be allocated corresponding to the maximum value of TSC and value as business
Reserved resource；Wherein, resource block to be allocated includes at least one standby resources block.
Preferably, device further include: loading module loads business for the reserved resource according to business.
According to another aspect of the invention, provide a kind of processor, including any description above based on time frequency spectrum
Continuous resource reservation device.
Through the invention, using the request signal of the business of reception and the frequency spectrum resource of determining alternative link and alternative link
Then block chooses standby resources block from frequency spectrum resource block, and obtains the time frequency spectrum successive value TSC of standby resources block, finally
Reserved resource of the corresponding resource block to be allocated of the TSC for meeting preset condition as business is selected from standby resources block, in this way,
It solves the problems, such as suitably distribute based on frequency spectrum resource under the flexible optical-fiber network of software definition in the related technology, and then reaches
The effect of appropriate distribution frequency spectrum resource.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of flow chart based on the continuous method for obligating resource of time frequency spectrum according to an embodiment of the present invention；
Fig. 2 is a kind of structural block diagram based on the continuous resource reservation device of time frequency spectrum according to an embodiment of the present invention；
Fig. 3 is the preferred structure frame according to the preferred embodiment of the invention based on the continuous resource reservation device of time frequency spectrum
Figure one；
Fig. 4 is the preferred structure frame according to the preferred embodiment of the invention based on the continuous resource reservation device of time frequency spectrum
Figure two；
Fig. 5 is the preferred structure frame according to the preferred embodiment of the invention based on the continuous resource reservation device of time frequency spectrum
Figure three；
Fig. 6 is the structural block diagram of processor according to an embodiment of the present invention；
Fig. 7 a is the continuous schematic diagram 1 of time frequency spectrum of preferred embodiment 1 according to the present invention；
Fig. 7 b is the continuous schematic diagram 2 of time frequency spectrum of preferred embodiment 1 according to the present invention；
Fig. 8 is the flow chart based on the continuous method for obligating resource of time frequency spectrum of preferred embodiment 2 according to the present invention.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
One kind is provided in the present embodiment based on the continuous method for obligating resource of time frequency spectrum, and this method can pass through place
Reason device realizes, but not limited to this, Fig. 1 is according to an embodiment of the present invention a kind of based on time frequency spectrum continuous resource reservation side
The flow chart of method, as shown in Figure 1, the process includes the following steps:
Step S102 receives the request signal of business, and the frequency spectrum of alternative link and alternative link is determined according to request signal
Resource block；
Step S104 chooses the conduct standby resources block for meeting request signal from frequency spectrum resource block, and obtains spare money
The time frequency spectrum successive value TSC of source block；
Step S106 selects at least one money to be allocated corresponding with the TSC for meeting preset condition from standby resources block
Reserved resource of the source block as business.
Through the above steps, by receiving the request signal of business and the frequency spectrum resource of determining alternative link and alternative link
Then block chooses standby resources block from frequency spectrum resource block, and obtains the time frequency spectrum successive value TSC of standby resources block, finally
Reserved resource of the corresponding resource block to be allocated of the TSC for meeting preset condition as business is selected from standby resources block, is solved
The problem of cannot suitably distributing based on frequency spectrum resource under software definition flexible optical-fiber network in the related technology, improve idle frequency spectrum
The utilization rate of resource.
Preferably, request signal carries following information: the time window of business and the data amount information of business；Wherein, industry
The time window of business and the data amount information of business are used to determine the carrying information of business；At least one is selected from standby resources block
Resource block to be allocated corresponding with the TSC for meeting preset condition includes: to determine according to carrying information as the reserved resource of business
The reserved resource of business.
The time window and data amount information carried above by request signal calculates the carrying information, which includes
Initial time and deadline；In this way, time window is introduced into the distribution of reserved resource, more it is rationally effective in time
Resource is reserved to traffic assignments, business is had more when distributing resource after establishing path, and vacant resource is available,
More smooth transmission services.
Optionally, at step 104, the conduct standby resources block for meeting request signal is chosen from frequency spectrum resource block, and
The time frequency spectrum successive value TSC for obtaining standby resources block includes: that the time window and industry that meet business are chosen from frequency spectrum resource block
The data amount information of business is used as standby resources block, and the time frequency spectrum of standby resources block is calculated by the product between A and B
Successive value TSC；Wherein, A is the frequency spectrum dimension of standby resources block and the percentage of time dimension usable spectrum, and B is standby resources
Along the joint average value of frequency axis and the idle frequency spectrum block of time shaft in block.
In above-mentioned steps, by calculating the value of TSC, the time for getting standby resources and the resource shape in frequency spectrum dimension
Condition reserves resource for traffic assignments and provides foundation, facilitated to determine that time frequency spectrum successive value is suitable for business according to the value of TSC
Reserved resource.
Optionally, in above-mentioned steps 106, at least one is selected from standby resources block and meets the TSC of preset condition
Corresponding resource block to be allocated includes: to be taken to the TSC of resource block to be allocated and operation as the reserved resource of business, is obtained
TSC and value choose reserved resource of the resource block to be allocated corresponding to the maximum value of TSC and value as business；Wherein, money to be allocated
Source block includes at least one standby resources block.
In above-mentioned steps, by selecting one or more as resource block to be allocated from multiple standby resources blocks, and count
Calculate the sum of the TSC of resource block to be allocated, and the value for choosing the sum of TSC in multiple resource blocks to be allocated it is maximum it is corresponding to point
It is the reserved resource of business with resource block；In this way, time frequency spectrum successive value TSC is introduced, provided for the reserved resource of business
More idling-resources reduce the blocking rate of business during service operation.
Preferably, after above-mentioned steps 106 further include: the reserved resource according to business loads business.
In above-mentioned steps, in the case where distributing reserved resource, business load reservation resource, in the process of service operation
In, the blocking rate of business transmission is reduced, resource is saved, while improving the utilization rate of idling-resource, further improves
The Experience Degree of user.
Using the above method, the continuous measure of time dimension frequency spectrum is considered due to taking, so that business is establishing path
Can have more that vacant resource is available when distributing resource afterwards, more business are operated normally, reduction resistance is reached
The effect of plug rate, not only saves resource, also improves resource utilization etc..
Additionally provide in the present embodiment it is a kind of based on the continuous resource reservation device of time frequency spectrum, the device for realizing
Above-described embodiment and preferred embodiment, the descriptions that have already been made will not be repeated.As used below, term " module " can
To realize the combination of the software and/or hardware of predetermined function.Although device described in following embodiment is preferably come with software
It realizes, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.
Fig. 2 is a kind of structural block diagram based on the continuous resource reservation device of time frequency spectrum according to an embodiment of the present invention,
The device can be processor, but not limited to this, as shown in figure 3, the device include: receiving module 22, obtain module 24 and really
Cover half block 26 is below illustrated the device.
Receiving module 22 determines alternative link and alternative link according to request signal for receiving the request signal of business
Frequency spectrum resource block；Module 24 is obtained, receiving module 22 is connected to, meets request signal for choosing from frequency spectrum resource block
As standby resources block, and obtain the time frequency spectrum successive value TSC of standby resources block；Determining module 26 is connected to acquisition module
24, for selecting at least one resource block to be allocated corresponding with the TSC for meeting preset condition as industry from standby resources block
The reserved resource of business.
By above-mentioned apparatus, the request signal of business is received by receiving module 22 and determines alternative link and alternative link
Frequency spectrum resource block, then choose standby resources block from frequency spectrum resource block by obtaining module 24, and obtain standby resources block
Time frequency spectrum successive value TSC, the TSC for selecting to meet preset condition from standby resources block finally by determining module 26 is corresponding
Reserved resource of the resource block to be allocated as business, solve in the related technology based on frequency spectrum under the flexible optical-fiber network of software definition
The problem of resource cannot be distributed suitably improves the utilization rate of idle frequency spectrum resource.
Preferably, request signal carries following information: the time window of business and the data amount information of business；Wherein, industry
The time window of business and the data amount information of business are used to determine the carrying information of business；It is selected at least from the standby resources block
One resource block to be allocated corresponding with the TSC for meeting preset condition includes: according to carrying information as the reserved resource of business
Determine the reserved resource of business.
The time window and data amount information carried above by request signal calculates the carrying information, which includes
Initial time and deadline；In this way, time window is introduced into the distribution of reserved resource, more it is rationally effective in time
Resource is reserved to traffic assignments, business is had more when distributing resource after establishing path, and vacant resource is available,
More smooth transmission services.
Fig. 3 is the preferred structure frame according to the preferred embodiment of the invention based on the continuous resource reservation device of time frequency spectrum
Figure one, the device can be processor, but not limited to this, as shown in figure 3, the device includes being somebody's turn to do outside all structures shown in Fig. 2
Obtain module 24 further include: first choice module 32 and the first computing module 34 are below illustrated the device.
First choice module 32 meets the time window of business and the data volume letter of business for choosing from frequency spectrum resource block
Breath is used as standby resources block；First computing module 34, is connected to first choice module 32, for passing through the product between A and B
Calculate the time frequency spectrum successive value TSC of standby resources block；Wherein, A is that the frequency spectrum dimension of standby resources block and time dimension can
With the percentage of frequency spectrum, B is the joint average value in standby resources block along frequency axis and the idle frequency spectrum block of time shaft.
In above-mentioned apparatus, by calculating the value of TSC, the time for getting standby resources and the resource shape in frequency spectrum dimension
Condition reserves resource for traffic assignments and provides foundation, facilitated to determine that time frequency spectrum successive value is suitable for business according to the value of TSC
Reserved resource.
Fig. 4 is the preferred structure frame according to the preferred embodiment of the invention based on the continuous resource reservation device of time frequency spectrum
Figure two, the device can be processor, but not limited to this, as shown in figure 4, the device includes outside all structures shown in Fig. 2,
In, the determining module 26 further include: the second computing module 42 and the second selecting module 44 below say the preferred structure
It is bright.
Second computing module 42, is taken and operation for the TSC to resource block to be allocated, obtains TSC and value；Second choosing
Module 44 is selected, the second computing module 42 is connected to, for choosing resource block to be allocated corresponding to the maximum value of TSC and value as industry
The reserved resource of business；Wherein, resource block to be allocated includes at least one standby resources block.
In above-mentioned apparatus, by selecting one or more as resource block to be allocated from multiple standby resources blocks, and count
Calculate the sum of the TSC of resource block to be allocated, and the value for choosing the sum of TSC in multiple resource blocks to be allocated it is maximum it is corresponding to point
It is the reserved resource of business with resource block；In this way, time frequency spectrum successive value TSC is introduced, provided for the reserved resource of business
More idling-resources reduce the blocking rate of business during service operation.
Fig. 5 is the preferred structure frame according to the preferred embodiment of the invention based on the continuous resource reservation device of time frequency spectrum
Figure three, the device can be processor, but not limited to this, as shown in figure 5, the device includes outside all structures shown in Fig. 2, also
Include: loading module 52, the preferred structure is illustrated below.
Loading module 52 loads business for the reserved resource according to business.
In above-mentioned apparatus, in the case where distributing reserved resource, business load reservation resource, in the process of service operation
In, the blocking rate of business transmission is reduced, resource is saved, while improving the utilization rate of idling-resource, further improves
The Experience Degree of user.
Using above-mentioned apparatus, the continuous measure of time dimension frequency spectrum is considered due to taking, so that business is establishing path
Can have more that vacant resource is available when distributing resource afterwards, more business are operated normally, reduction resistance is reached
The effect of plug rate, not only saves resource, also improves resource utilization etc..
Fig. 6 is the structural block diagram of processor according to an embodiment of the present invention, as shown in fig. 6, the processor 60 includes above-mentioned
Any one based on the continuous resource reservation device 62 of time frequency spectrum.
Preferred embodiment 1
Fig. 7 a and Fig. 7 b show the continuous schematic diagram of time frequency spectrum, are based on Fig. 7 a and Fig. 7 b, resource provided in this embodiment
Method for obligating includes:
Business reaches, and path, which is established, completes, and needs to calculate the frequency spectrum resource of chain road；
In order to better describe the occupancy situation of frequency spectrum, the concept of TSC (time frequency spectrum is continuous), TSC are introduced is defined as:Wherein,WithFollowing formula indicates respectively: Wherein tcIt is current time,It is link L respectively along time dimension
It is summed up with the usable spectrum block of frequency spectrum dimension.
The frequency spectrum occupancy of chain road is defined as matrix [u in the whole processl]T×F,T
Time quantum is represented, F represents the frequency spectrum resource number in each of the links.In matrixIt is a bit value, 1 represents in t
It carves and frequency spectrum slot when f frequency is idle, and 0 to represent frequency spectrum occupied.
Occupied frequency spectrum resource on whole path is calculated,
Wherein L (s, d) is the link set on the p of path.
After knowing the resource situation in frequency spectrum resource number and whole path on chain road, useValue calculates tcTime
The TSC value in moment whole path
The value of TSC is determined by A and B in this process, and the value of TSC represents the utilizable possibility of continuous frequency spectrum resource
Property.A represents the percentage of frequency spectrum dimension and time dimension usable spectrum, and the value of A is bigger, and the probability that business is blocked is lower.B is anti-
Reflect the joint average value of the idle frequency spectrum block along frequency axis and time shaft, i.e., continuously available frequency spectrum.The available continuous frequency in chain road
Spectrum resource is more, and the ratio on axis should be higher.
As shown in Figure 7 a, the continuous frequency spectrum resource of chain road is calculated.By taking link L1 as an example, it is assumed that current time tc=1.
Each time quantum includes 9 frequency spectrum blocks, therefore (T-tcIt+1) is 2, F=9；Along the joint spectrum number of frequency spectrum axis and time shaft point
It Wei 7 and 5.In time tc=1 and tcThere are two identical frequency spectrum blocks when=2, and along time shaft, there are also 6 frequency spectrum blocks, so in total
There are 10 frequency spectrum blocks, so the TSC value of link L1 is 0.73 according to the definition of front TSC.Same link L2's and link L3
TSC value is respectively 0.35 and 0.93.In the same way, we can calculate by the path formed link L1, L2, L3
TSC is 0.32.
Preferred embodiment 2
Fig. 8 is the flow chart based on the continuous method for obligating resource of time frequency spectrum of preferred embodiment 2 according to the present invention,
This method can realize by processor, but not limited to this, as shown in figure 8, the process flow includes:
Specifically, after business reaches: calculating the path between sourcesink node, the time window [t of standby services,tB] determine it
Afterwards, according to formulaBandwidth C is mapped to [ts,tB] between N number of subcarrier on.In formula
NgIt is the slot number for protecting bandwidth, fslotFor the bandwidth that subcarrier occupies, C is the data volume of the business, tsFor the starting of time window
Time, tBFor the deadline of time window.
S801: it after business reaches, is calculated source node with K shortest path (with above-mentioned alternative link) (KSP) algorithm and is arrived
K shortest path between destination node is as candidate backup path；
S802: if at least there is 1 shortest path,It calculates most short
The link spectral resource of path p；
S803: meeting the time started and the duration was less than under conditions of final deadline, required for calculating business
Frequency spectrum slot (slot) number (with above-mentioned carrying information)；
Specifically, to ensure that global optimization's time distributes, for every shortest path, time started and duration are
Time traversal from start to end.Meet time started ts(ts=ta；≤tm；ts++) and duration of Δ t (Δ t=1, Δ t
≤tm-ts；Δ t++) under conditions of, according to formulaCalculate required frequency spectrum resource；Its
In, taFor the initial time begun stepping through, tmFor the time of cut-off traversal.
S804: available frequency spectrum blocks are found as in the time started to the spare money for meeting service request between deadline
Source block；
Specifically, matrix U is then occupied according to frequency spectrumL, ULMatrix is occupied for the frequency spectrum of L chain road；Find available frequency spectrum
Block is used as in current time tcTo tsMeet the standby resources block (B of service request between+Δ tp={ B1 … Bn})；Wherein, Bi
For i-th piece of standby resources block.
S805: it is assumed that the available continuous frequency spectrum block of chain road is used for this link, according to the usable spectrum in each of the links
Block calculates the TSC of each of the links, selects the maximum continuous frequency spectrum block of TSC value；
Specifically, for each Bi, it is assumed that the continuous frequency spectrum in current spectral block has distributed, and calculates all chain roads
The sum of TSCIt selects to obtain resource block to be allocated from standby resources block according to carrying information and calculates current time tc's
The TSC of resource block to be allocated:Then the TSC of resource block to be allocated is recorded:In (ts, Δ t) moment point selects maximum
That is:Utilize formulaSelect TSC
It is worth maximum frequency spectrum blocks Bi.Wherein: formula (1)Wherein,
Resource is distributed using selected frequency spectrum blocks.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein
Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. one kind is based on the continuous method for obligating resource of time frequency spectrum characterized by comprising
The request signal of reception business determines the frequency spectrum resource of alternative link and the alternative link according to the request signal
Block；
The conduct standby resources block for meeting the request signal is chosen from the frequency spectrum resource block, and obtains the standby resources
The time frequency spectrum successive value TSC of block；
Select at least one resource block to be allocated corresponding with the TSC for meeting preset condition as institute from the standby resources block
State the reserved resource of business；
Wherein, the request signal carries following information: the data amount information of the time window of the business and the business；Its
In, the data amount information of the time window of the business and the business is used to determine the carrying information of the business；From described standby
It uses and selects at least one resource block to be allocated corresponding with the TSC for meeting preset condition as the reserved of the business in resource block
Resource includes: that the reserved resource of the business is determined according to the carrying information.
2. meeting the request letter the method according to claim 1, wherein choosing from the frequency spectrum resource block
Number be used as standby resources block, and the time frequency spectrum successive value TSC for obtaining the standby resources block includes:
The conduct that the data amount information of the time window and the business that meet the business is chosen from the frequency spectrum resource block is standby
With resource block, and calculate by the product between A and B the time frequency spectrum successive value TSC of the standby resources block；
Wherein, the A is the frequency spectrum dimension of the standby resources block and the percentage of time dimension usable spectrum, and the B is institute
It states in standby resources block along the joint average value of frequency axis and the idle frequency spectrum block of time shaft.
3. the method according to claim 1, wherein determining the reserved money of the business according to the carrying information
Source includes:
The TSC of the resource block to be allocated is taken and operation, obtain TSC and value, corresponding to the maximum value for choosing TSC and value
Reserved resource of the resource block to be allocated as the business；
Wherein, the resource block to be allocated includes at least one described standby resources block.
4. according to the method in any one of claims 1 to 3, which is characterized in that the method also includes:
Reserved resource according to the business loads the business.
5. one kind is based on the continuous resource reservation device of time frequency spectrum characterized by comprising
Receiving module determines alternative link and the candidate chains according to the request signal for receiving the request signal of business
The frequency spectrum resource block on road；
Module is obtained, for choosing the conduct standby resources block for meeting the request signal from the frequency spectrum resource block, and is obtained
Take the time frequency spectrum successive value TSC of the standby resources block；
Determining module, for selecting at least one corresponding with the TSC for meeting preset condition from the standby resources block wait divide
Reserved resource with resource block as the business；
Wherein, the request signal carries following information: the data amount information of the time window of the business and the business；Its
In, the data amount information of the time window of the business and the business is used to determine the carrying information of the business；From described standby
It uses and selects at least one resource block to be allocated corresponding with the TSC for meeting preset condition as the reserved of the business in resource block
Resource includes: that the reserved resource of the business is determined according to the carrying information.
6. device according to claim 5, which is characterized in that the acquisition module includes:
First choice module meets the time window of the business and the number of the business for choosing from the frequency spectrum resource block
Standby resources block is used as according to amount information；
First computing module, for calculating the time frequency spectrum successive value of the standby resources block by the product between A and B
TSC；
Wherein, the A is the frequency spectrum dimension of the standby resources block and the percentage of time dimension usable spectrum, and the B is institute
It states in standby resources block along the joint average value of frequency axis and the idle frequency spectrum block of time shaft.
7. device according to claim 5, which is characterized in that the determining module includes:
Second computing module, is taken and operation for the TSC to the resource block to be allocated, obtains TSC and value；
Second selecting module, for choosing resource block reserving as the business to be allocated corresponding to the maximum value of TSC and value
Resource；
Wherein, the resource block to be allocated includes at least one described standby resources block.
8. device according to any one of claims 5 to 7, which is characterized in that described device further include:
Loading module loads the business for the reserved resource according to the business.
9. a kind of processor, which is characterized in that including the described in any item devices of the claims 5 to 8.
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| PCT/CN2015/088511 WO2016082596A1 (en) | 2014-11-27 | 2015-08-31 | Method, device and processor for continuously reserving resource based on time spectrum |
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| WO2018027991A1 (en) * | 2016-08-12 | 2018-02-15 | 华为技术有限公司 | Method, device, and equipment for selecting resource |
| CN111182379B (en) * | 2020-01-03 | 2021-08-13 | 中原工学院 | Frequency spectrum allocation method for plastic reserved service in elastic optical network |
| CN112383846B (en) * | 2020-11-13 | 2022-06-21 | 国网河南省电力公司信息通信公司 | Cloud-fog elastic optical network-oriented spectrum resource allocation method for advance reservation request |
| CN113132827B (en) * | 2021-04-09 | 2022-03-25 | 烽火通信科技股份有限公司 | Modulation adaptive route calculation method and device under elastic optical network |
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| US7352692B1 (en) * | 1999-01-15 | 2008-04-01 | Cisco Technology, Inc. | Resource reservation scheme for path restoration in an optical network |
| CN103051547A (en) * | 2012-12-24 | 2013-04-17 | 北京邮电大学 | Routing and spectrum resource allocation method and system for resource awareness in elastic optical path network |
| CN103327501A (en) * | 2013-05-17 | 2013-09-25 | 北京邮电大学 | Resource allocation method based on distributed debris concentration ratio |
| CN103812790A (en) * | 2014-01-14 | 2014-05-21 | 河北工程大学 | Self-adapting modulation format RSA (Routing and Spectrum Allocation) method in flexible optical network |
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| CN102523068B (en) * | 2011-12-07 | 2014-07-30 | 北京邮电大学 | Frequency spectrum resource distribution method in elastic optical network and system thereof |
| US9054955B2 (en) * | 2012-12-30 | 2015-06-09 | Doron Handelman | Apparatus and methods for enabling recovery from failures in optical networks |
| CN103391258B (en) * | 2013-07-03 | 2017-04-19 | 北京邮电大学 | Resource distribution method and device based on distributed fragment concentration ratios |
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| US7352692B1 (en) * | 1999-01-15 | 2008-04-01 | Cisco Technology, Inc. | Resource reservation scheme for path restoration in an optical network |
| CN103051547A (en) * | 2012-12-24 | 2013-04-17 | 北京邮电大学 | Routing and spectrum resource allocation method and system for resource awareness in elastic optical path network |
| CN103327501A (en) * | 2013-05-17 | 2013-09-25 | 北京邮电大学 | Resource allocation method based on distributed debris concentration ratio |
| CN103812790A (en) * | 2014-01-14 | 2014-05-21 | 河北工程大学 | Self-adapting modulation format RSA (Routing and Spectrum Allocation) method in flexible optical network |
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