CN102726086B - Method and device for spectrum sharing in wireless distributed communication network - Google Patents
Method and device for spectrum sharing in wireless distributed communication network Download PDFInfo
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- CN102726086B CN102726086B CN200980162001.3A CN200980162001A CN102726086B CN 102726086 B CN102726086 B CN 102726086B CN 200980162001 A CN200980162001 A CN 200980162001A CN 102726086 B CN102726086 B CN 102726086B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
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Abstract
A method and a device for spectrum sharing in a wireless distributed communication network are provided. The method includes that several communication groups compose a sharing community which shares spectrum, each communication group sends, according to a communication scheme determined by said each communication group respectively, a training signal to evaluate the communication scheme, and sends the evaluation result to other communication groups. During a time period, only one communication group updates the communication scheme, namely, several communication groups update the communication schemes in turn during different time periods. With the manner described above, distributed spectrum sharing is performed without support of IP connection, and the spectrum utilization efficiency can be improved.
Description
Technical field
The present invention relates to the method and apparatus of frequency spectrum share, particularly relate to the method and apparatus of the frequency spectrum share in wireless distributed communication network.
Background technology
For distributed frequency spectrum sharing, a kind of typical prior art sees IEEE802.16h WiMAX.The system architecture of the program as shown in Figure 1.The adjacent base station with overlap signal overlay area forms frequency spectrum share community, and its intermediate frequency spectrum is shared with being distributed formula.Each base station has a distributed data base, store actual use and shared information that is frequency spectrum resource that is that will use.These distributed data bases can be relied on coexistence agent (CoexistenceProxy) to be connected by IP and visit.
Before entering frequency spectrum share community, an initial base station (IBS, Initializing BaseStation) in the signaling gap that initially coexists (ICSI, InitializingCoexistence Signaling Interval) of the channel that coexists, broadcast its information.Its adjacent base station, namely active base station (OBS, Operating Base Station), use information to send to initial base station respective current spectral by being used coexistence protocol message by coexistence agent.Use information based on obtained frequency spectrum, initial base station can learn to use which spectral slice (time/frequency Resource Block).When initial base station can find idle spectral slice, then can utilize this frequency spectrum cavity-pocket.And when there is no available idle frequency spectrum fragment, initial base station by the negotiation of spectrum process between initiation one and active base station, with the working channel of share-the-work base station.
Summary of the invention
Distributed frequency spectrum sharing scheme in 802.16h depends on IP network.Communication information between most system, such as coexistence protocol message, is passed on by the protocol interface of IP network by coexistence agent.The program can alleviate the signaling consumption of air interface, but the program cannot be applied in the distributed network not having IP to connect.In addition, must arrange coexistence agent for protocol conversion, this will increase complexity and the cost of spectra sharing system.
In addition, in this scenario, frequency spectrum is found and the pattern of filling and utilizing by by a kind of: first initial base station will find idle spectral slice.If available free frequency spectrum resource, then fill.If no, initial base station can start the negotiation of spectrum process of an active base station lighter with load, to obtain spectral slice.What this class frequency spectrum share scheme adopted is the distribution method of simple frequency spectrum resource.But, this spectrum sharing mechanisms principle non-optimal, because do not adopt spectrum allocation may Optimization Mechanism in frequency spectrum share community, be therefore difficult to obtain high spectrum utilization.
In order to solve the problem, the invention provides the method and apparatus of the frequency spectrum share in wireless distributed communication network.
An embodiment according to a first aspect of the invention, provides the method for the frequency spectrum share in a kind of first equipment of first communication set for wireless distributed communication network.This first communication set also comprises second equipment, and this first equipment is sent out and sent data message to this second equipment, and this first communication set and other at least one communication set form the shared community of a shared frequency spectrum.The method comprises:
-obtaining a time sequence information, this time sequence information indicates a time period, and only described first communication set can carry out communication plan renewal in this time period;
-according to a communication plan of described first communication set, send a training signal to described second equipment;
-receiving the training signal sent by described second equipment to receive information, this training signal receives information and indicates the receptivity of described training signal or indicate described second equipment assessment result to described communication plan on the basis of the receptivity of described training signal;
-receiving the communication plan appreciation information sent by each communication set in other at least one communication set described, each communication plan appreciation information indicates the assessment result of each communication set to the communication plan determined separately on the receptivity basis of respective training signal; And
-receive information, described communication plan appreciation information and a predetermined Optimized Iterative strategy according to described training signal, the described communication plan of described first communication set is upgraded in the described time period.
Due to over a period, a communication set can only be had to carry out communication plan renewal, all communication set that would not occur in a shared community carry out communication plan more news simultaneously.In this way, just can avoid the larger change of the communication plan of simultaneously carrying out the shared frequency spectrum of multiple communication set that communication plan renewal causes due to multiple communication set, thus when using Optimized Iterative policy update communication plan, obtain final communication plan as soon as possible.In addition, by sending training signal according to communication plan, communication set just can understand the channel situation be about to for transmitting data information accurately, contributes to communication set and determines final communication plan.In addition, by the information of interface transmission time sequence information, training signal, communication plan appreciation information and training signal reception aloft, just when not having IP to connect, distributed frequency spectrum sharing can be realized.
An embodiment according to a second aspect of the present invention, provides the method for the frequency spectrum share in a kind of second equipment of first communication set for wireless distributed communication network.This first communication set also comprises first equipment, and this first equipment is sent out and sent data message to this second equipment, and this first communication set and other at least one communication set form the shared community of a shared frequency spectrum.The method comprises:
-obtaining a time sequence information, this time sequence information indicates a time period, and only described first communication set can carry out communication plan renewal in this time period;
-receive the training signal sent by described first equipment;
-receiving the communication plan appreciation information sent by each communication set in other at least one communication set described, each communication plan appreciation information indicates the assessment result of each communication set to the communication plan determined separately on the receptivity basis of respective training signal; And
-according to the receptivity of described training signal, described communication plan appreciation information and a predetermined Optimized Iterative strategy, the described communication plan of described first communication set is upgraded in the described time period.
An embodiment according to a third aspect of the present invention, provides a kind of first equipment of first communication set for wireless distributed communication network frequency spectrum share.This first communication set also comprises second equipment, and this first equipment is sent out and sent data message to this second equipment, and this first communication set and other at least one communication set form the shared community of a shared frequency spectrum.This first equipment comprises:
An acquisition device, it is for obtaining a time sequence information, and this time sequence information indicates a time period, and only described first communication set can carry out communication plan renewal in this time period;
A dispensing device, it is for a communication plan according to described first communication set, sends a training signal to described second equipment;
A receiving system, it receives information for receiving the training signal sent by described second equipment, and this training signal receives information and indicates the receptivity of described training signal or indicate described second equipment assessment result to described communication plan on the basis of the receptivity of described training signal;
Described receiving system is also for receiving the communication plan appreciation information sent by each communication set in other at least one communication set described, and each communication plan appreciation information indicates the assessment result of each communication set to the communication plan determined separately on the receptivity basis of respective training signal; And
A updating device, it, for receiving information, described communication plan appreciation information and a predetermined Optimized Iterative strategy according to described training signal, upgrades the described communication plan of described first communication set in the described time period.
An embodiment according to a fourth aspect of the present invention, provides a kind of second equipment of first communication set for wireless distributed communication network frequency spectrum share.This first communication set also comprises first equipment, and this first equipment is sent out and sent data message to this second equipment, and this first communication set and other at least one communication set form the shared community of a shared frequency spectrum.This second equipment comprises:
An acquisition device, it is for obtaining a time sequence information, and this time sequence information indicates a time period, and only described first communication set can carry out communication plan renewal in this time period;
A receiving system, it is for receiving the training signal sent by described first equipment;
Described receiving system is also for receiving the communication plan appreciation information sent by each communication set in other at least one communication set described, and each communication plan appreciation information indicates the assessment result of each communication set to the communication plan determined separately on the receptivity basis of respective training signal; And
A updating device, it, for the receptivity according to described training signal, described communication plan appreciation information and a predetermined Optimized Iterative strategy, upgrades the described communication plan of described first communication set in the described time period.
Various aspects of the present invention are more clear by the explanation by specific embodiment hereinafter.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, above and further feature, object and advantage of the present invention will become more apparent:
Fig. 1 is the schematic diagram of IEEE 802.16h WiMAX system framework;
Fig. 2 is the flow chart of method according to an embodiment of the invention;
Fig. 3 is the flow chart of method according to another embodiment of the invention;
Fig. 4 is the schematic diagram of frame structure according to an embodiment of the invention;
Fig. 5 is the schematic diagram of application scenarios according to an embodiment of the invention;
Fig. 6 is the block diagram of the first equipment according to an embodiment of the invention; And
Fig. 7 is the block diagram of the second equipment according to an embodiment of the invention.
Accompanying drawing mark identical or similar in accompanying drawing represents identical or similar parts.
Embodiment
Fig. 2 is the flow chart of method according to an embodiment of the invention.
An embodiment according to a first aspect of the invention, provides the method for the frequency spectrum share in a kind of first equipment of first communication set for wireless distributed communication network.First communication set also comprises second equipment, and the first equipment is sent out and sent data message to the second equipment.First communication set and other at least one communication set form the shared community of a shared frequency spectrum.In wireless distributed communication network, between equipment, carry out signaling and transfer of data by wireless air interface.First equipment and the second equipment can be accomplished in several ways respectively, such as base station, relay station or user terminal.Sending out due to the first equipment send data message to the second equipment, so need to determine frequency spectrum share scheme for sending from the first equipment to the data of the second equipment, namely distributes frequency spectrum resource.A communication set corresponds to by a communication link formed with a receiving end of making a start.
Frequency spectrum share community can be formed in several ways.Such as, the multiple communication set in an appointed area form a frequency spectrum share community, or the multiple communication set will competing identical multiple frequency sub-band form a frequency spectrum share community.。
As shown in Figure 2, the method comprising the steps of, and the 210, first equipment obtains a time sequence information, and this time sequence information indicates a time period, and only the first communication set can carry out communication plan renewal in this time period.
Common control equipment is there is not in distributed network, thus in a frequency spectrum share community, each communication set adopts Optimized Iterative strategy to upgrade respective communication plan, thus optimizes the overall communication performance of this frequency spectrum share community, the especially availability of frequency spectrum.
On the basis of many optimum theories, the Optimized Iterative strategy with suitable convergence rate and Optimal performance can be designed, such as game theory, convex optimum theory, Combinatorial Optimization theory etc.In these algorithms, each communication set in a shared community can have respective target function or individual function.Each communication set distribution ground but not formulate respective communication plan independently, to maximize respective target capabilities.By using the communication plan of each communication set of Optimized Iterative policy update, the overall communication performance of system obtains optimization, and the availability of frequency spectrum is improved.The convergence of Optimized Iterative strategy and the performance of optimization can be guaranteed by the design of suitable target function and theoretical modeling.How design optimization iterative strategy is not goal of the invention of the present invention, does not repeat them here.
The communication plan of a communication set can comprise this communication set communicate selected by channel and signal transmitting power, wherein, the selection of channel can be any one in the following or appoint multinomial combination: space, time, frequency, coding.A kind of more typical Channel assignment is the selection carrying out sending frequency range or time slot in shared band.
Usually, each communication set in a frequency spectrum share community starts to upgrade respective communication plan according to iteration optimization strategy under the triggering of some frequency spectrum share trigger event.Possible trigger event comprises: the frequency spectrum quantity of shared band and/or the change of quality, have new communication set to add frequency spectrum share community, or the frequency spectrum share community that had communication set to exit.
In the present embodiment, the time period of the first communication set indicated by time sequence information determines when to carry out communication plan renewal, and within the time period of instruction, only has the first communication set to carry out communication plan renewal.In this way, in a period of time, a communication set only can be had in the multiple communication set in shared community to carry out scheme renewal, all communication set that would not occur in a shared community carry out communication plan more news simultaneously.Therefore, just can avoid the larger change of the communication plan of simultaneously carrying out the shared frequency spectrum of multiple communication set that communication plan renewal causes due to multiple communication set, thus when using Optimized Iterative policy update communication plan, improving iterative convergence speed, obtaining final communication plan as soon as possible.
First communication set can obtain time sequence information in several ways.Such as, by a communication set in the multiple communication set in shared community, such as, add the communication set of shared community the earliest, determine that each communication set is used for carrying out the time period of communication plan renewal.And for example, in the multiple communication set in shared community such as, by a kind of competition mechanism, collision detection mechanism, determine that each communication set is used for carrying out the time period of communication plan renewal.
The method also comprises step 220, and the first equipment, according to the first communication set communication plan, sends a training signal to the second equipment.
The communication plan of the first communication set can be an initial communication scheme or the communication plan by Optimized Iterative policy update.First communication set only can carry out simple Channel assignment when determining initial communication scheme, and signal transmitting power is decided to be unit power.
First equipment is by sending according to determined communication plan the performance that training signal checks existing communication plan, that is, first equipment utilization training signal simulates the situation using determined communication plan to send data message, thus assesses determined communication plan.
While the first communication set sends training signal, other communication set belonging to a shared community with the first communication set together also can send training signal according to respective communication plan.Each communication set in shared community synchronously sends training signal, and namely each communication set sends training signal in the identical time period.The same external clock that synchronously can adopt that the training signal of each communication set sends comes synchronously, and such as GPS is synchronous; Or it is synchronous with same communication set, such as synchronous with the communication set adding shared community the earliest.
The method also comprises step 230, first equipment receives the training signal sent by the second equipment and receives information, and this training signal receives information and indicates the receptivity of training signal or second equipment that indicates on the basis of the receptivity of training signal to the assessment result of the existing communication plan of the first communication set.
When the first equipment in the first communication set sends training signal, the second equipment of the first communication set receives the training signal that the first equipment sends, and checks the receptivity of training signal.The receptivity of training signal can comprise the parameter of multiple sign received signal quality or the quality of wireless channel between the first equipment and the second equipment, the power, the error rate, bit error rate etc. of the power of the training signal such as received, signal interference ratio, Signal to Interference plus Noise Ratio, interference signal.
In one embodiment, the receptivity that the second equipment receives by training signal the training signal that information is detected sends to the first equipment.Second equipment can adopt various ways that the receptivity of training signal is received information by training signal and send to the first equipment.Such as, the first equipment and the second equipment all prestore a mapping table, and this mapping table has carried out classification designator to possible reception training signal performance.The label of the receptivity corresponding to the training signal detected is sent to the first equipment by the second equipment, and the first equipment just can determine the receptivity of training signal by searching mapping table.
In another embodiment, the second equipment to be assessed determined communication plan according to the receptivity of training signal and is received information by training signal and assessment result is sent to the first equipment.Each communication set of shared community on the receptivity basis of respective training signal, can be assessed the communication plan determined separately.Assessment result can comprise plurality of kinds of contents, such as target capabilities increment or communication plan preference.Target capabilities can comprise message transmission rate, and when target capabilities is message transmission rate, target capabilities increment is the difference between the message transmission rate that detects of twice acceptance the subject of knowledge and the object of knowledge according to training signal.Communication plan preference can comprise disturbs relevant information with co-channel, such as co-channel interference sensitivity, the decline of the message transmission rate that the increase that co-channel interference sensitivity can be expressed as the interference of per unit co-channel causes.In general, the co-channel interference sensitivity of a channel is lower, then select the tendentiousness of this channel higher.
Second equipment can adopt various ways to send to the first equipment by receiving information to the assessment result of determined communication plan by training signal according to training signal.Such as, the first equipment and the second equipment all prestore a mapping table, and this mapping table has carried out classification designator to possible assessment result.The label of the assessment result corresponding to determined communication plan is sent to the first equipment by the second equipment, and the first equipment just can determine the receptivity of training signal by searching mapping table.
The method also comprises step 240, and the first equipment receives the communication plan appreciation information sent by each communication set in other at least one communication set.Each communication plan appreciation information indicates the assessment result of each communication set to the communication plan determined separately on the receptivity basis of respective training signal.
The method also comprises step 250, and the first equipment receives information, described communication plan appreciation information and a predetermined Optimized Iterative strategy according to training signal, and the time period indicated by time sequence information upgrades the described communication plan of communication set.
The assessment result of each communication set in a shared community to the respective training signal using respective communication plan to send just becomes the priori of carrying out communication plan renewal.In other words, predetermined Optimized Iterative strategy can be expressed as a function; The input of this function comprises the assessment result of each communication set in shared community; The output of this function comprises the communication plan determined, the contents such as the channel such as selected and/or determined signal transmitting power.
When the training signal that the second equipment sends receives the receptivity for training signal of information instruction, the first equipment is assessed determined communication plan according to the receptivity of training signal, and using the input of assessment result as Optimized Iterative strategy.What the training signal sent when the second equipment received information instruction is the second equipment assessment result to the determined communication plan of the first communication set on the basis of the receptivity of training signal, the first equipment using this assessment result directly as the input of Optimized Iterative strategy.
First equipment will judge whether the target capabilities of each communication set meets one and upgrade stop condition.Other communication set in shared community also will perform such judgement respectively.If do not meet and upgrade stop condition, then will repeat above-mentioned steps, and carry out communication plan next time and upgrade.Upgrade stop condition if met, the communication plan of renewal is defined as respective communication plan by each communication set, and terminates communication plan renewal process.Afterwards, each communication set will communicate according to respective determined final communication plan.Upgrade stop condition can determine in several ways.Such as, upgrading stop condition can be that the increment of the target capabilities of each communication set is all less than a predetermined value.When meeting this renewal stop condition, mean that the communication performance of each communication set has not had too many room for promotion.In some other embodiment, also can set different predetermined values for different communication set, namely surely upgrade the target capabilities increment that stop condition becomes each communication set and be less than respective predetermined value.Upgrading stop condition also can be communication plan update times, when the update times of each communication set is more than a predetermined value, just terminates the process upgraded communication plan.
Before communication plan renewal process terminates, the communication plan at every turn upgraded can not be sent to the second equipment by the first equipment.After communication plan renewal process terminates, final communication plan is sent to the second equipment by the first equipment, so that the second equipment obtains the communication plan of the first up-to-date communication set.
In another embodiment of the method, also comprise step, the first equipment, according to the receptivity of training signal, determines the communication plan appreciation information of the first communication set.The communication plan appreciation information of the first communication set indicates the assessment result of the first equipment to determined communication plan on the receptivity basis of described training signal; And first equipment send the communication plan appreciation information of the first communication set to other at least one communication set.Like this, other communication set in shared community just can receive the communication plan appreciation information of the first communication set, thus upgrade respective communication plan.
The object obtaining the communication plan appreciation information of the first communication set due to other communication set in shared community upgrades other communication set communication plan separately, therefore, when on certain time period, only the first communication set can carry out communication plan renewal, first communication set, after other communication set carry out communication plan renewal and before oneself upgrading communication plan, also can not send the communication plan appreciation information of the first communication set.In addition, when the first communication set does not carry out communication plan renewal in the next time period, the communication plan appreciation information that other communication set send can not also be received.
Fig. 3 is the flow chart of method according to another embodiment of the invention.
An embodiment according to a second aspect of the invention, provides the method for the frequency spectrum share in a kind of second equipment of first communication set for wireless distributed communication network.This first communication set also comprises first equipment, and this first equipment is sent out and sent data message to this second equipment.This first communication set and other at least one communication set form the shared community of a shared frequency spectrum.
As shown in Figure 3, the method comprising the steps of, and the 310, second equipment obtains a time sequence information, and this time sequence information indicates a time period, and only the first communication set can carry out communication plan renewal in this time period.The communication plan of a communication set can comprise this communication set communicate selected by channel and/or signal transmitting power.
Because the first equipment is intended to the second equipment sending data information, so the first equipment sends training signal, to assess determined communication plan according to the determined communication plan of the first communication set.
The method also comprises step 320, and the second equipment receives the training signal sent by the first equipment.
The method also comprises step 330, and the second equipment receives the communication plan appreciation information sent by each communication set in other at least one communication set.Each communication plan appreciation information indicates the assessment result of each communication set to the communication plan determined separately on the receptivity basis of respective training signal.Assessment result can comprise plurality of kinds of contents, such as target capabilities increment or communication plan preference.
The method also comprises step 340, and the second equipment is according to the receptivity of training signal, communication plan appreciation information and a predetermined Optimized Iterative strategy, and the time period indicated by time sequence information upgrades the described communication plan of the first communication set.
In one embodiment, the second equipment can be assessed the existing communication plan of the first communication set in the receptivity of training signal, and using the input of assessment result as Optimized Iterative strategy.
Second equipment will judge whether the target capabilities of each communication set meets one and upgrade stop condition.Other communication set in shared community also will perform such judgement respectively.If do not meet and upgrade stop condition, then will repeat above-mentioned steps, and carry out communication plan next time and upgrade.Upgrade stop condition if met, the communication plan of renewal is defined as respective communication plan by each communication set, and terminates communication plan renewal process.Afterwards, each communication set will communicate according to respective determined final communication plan.
Communication plan after upgrading, after each renewal communication plan, is sent to the first equipment, so that the first equipment obtains the communication plan of the first up-to-date communication set by the second equipment.First equipment, after the communication plan obtaining the first up-to-date communication set, just can send training signal according to up-to-date communication plan.
Fig. 4 is the schematic diagram of frame structure according to an embodiment of the invention.
Above-described embodiment realizes by the frame structure shown in Fig. 4.As shown in Figure 4, common MAC (medium education, Media Access Control) frame is used for transmitting data information, the communication data between the equipment namely in wireless distributed communication network.Managing MAC frame is used for transmit management information, namely for the communication plan of the equipment determination frequency spectrum share in wireless distributed communication network.
In managing MAC frame, frame control head is used for providing network public information.Access-in management subframe is for determining the order of the renewal communication plan of multiple communication set in wireless distributed communication network.The order how determining the renewal communication plan of multiple communication set is not goal of the invention of the present invention, does not repeat them here.
In spectrum allocation may subframe, comprise multiple time slot, the number N of multiple time slot can be determined according to maximum number of users supported in a spectral slice in certain area.At each time slot, a communication set is only had to carry out communication plan renewal.Each time slot comprises a policy development interval, a training interval and a signal interval.Corresponding to above-described embodiment, policy development interval is used for the first equipment or the second renewal of the equipment communication plan; Training interval is used for the first equipment and sends training signal; Each communication set that signal interval is used in shared community sends communication plan appreciation information.
From the above embodiments, when multiple communication set forms the shared community of a shared frequency spectrum, each communication set is by sending training signal and carry out assessment result to communication plan and assessment result being sent to other communication set according to respective determined communication plan.Over a period, a communication set can only be had to carry out communication plan renewal, and namely multiple communication set upgrades communication plan in turn on the different time periods.Carry out distributed frequency spectrum share in this way, neither need the support that IP connects, can spectrum utilization efficiency be improved again.
Below for the frequency spectrum share community of three communication set compositions, further illustrate the method for frequency spectrum share.
Fig. 5 is the schematic diagram of application scenarios according to an embodiment of the invention.
As shown in Figure 5, three communication set are had in a shared community, in first communication set, equipment Tx1 sends out and send data message to equipment Rx1, in second communication set, equipment Tx2 sends out and send data message to equipment Rx2, and in the 3rd communication set, equipment Tx3 sends out and send data message to equipment Rx3.These three communication set need to determine secret sharing on two shared channels (such as two frequency sub-band).
First, three mutual exchange network information of communication set and communication group information.The network information comprises frequency spectrum using state, the Optimized Iterative strategy of employing and iteration convergence condition etc.Communication group information comprises channel quality and the parameter etc. for iteration optimization.
Secondly, three communication set determine initial communication scheme separately, namely from two shared channels, select the channel that will use and the transmitting power that will use, and obtain separately for upgrading the time period of communication plan.Suppose that the order that three communication set upgrade communication plans is that first communication set Tx1Rx1 upgrades communication plan, being then that communication set Tx2Rx2 upgrades communication plan, is then that communication set Tx3Rx3 upgrades communication plan.
Again, equipment Tx1, Tx2 and Tx3 sends training signal according to respective initial communication scheme simultaneously.Equipment Rx1, Rx2 and Rx3 receive training signal and estimate the quality of the training signal received separately thus the message transmission rate under assessing respective communication plan and co-channel interference sensitivity.
Then, respective assessment result sends with the form of communication plan appreciation information by equipment Rx2 and Rx3.Equipment Rx2 and Rx3, when sending communication plan appreciation information, can adopt multiple multi-access mode, such as time division multiple access or code division multiple access etc.Equipment Rx2 and Rx3 can be obtained the multi-access mode that should use separately by the mode receiving an out-of-band signalling or mode through consultation obtains the multi-access mode that should use separately.The communication plan appreciation information that equipment Rx1 receiving equipment Rx2 and Rx3 sends, and according to the assessment result of oneself and the communication plan of Optimized Iterative policy update oneself.
Next, equipment Tx1 sends training signal according to the communication plan upgraded, synchronous, and equipment Tx2 and Tx3 still sends training signal by original communication plan.Equipment Rx1, Rx2 and Rx3 receive training signal and estimate the quality of the training signal received separately thus the message transmission rate under assessing respective communication plan and co-channel interference sensitivity.Respective assessment result sends with the form of communication plan appreciation information by equipment Rx1 and Rx3.The communication plan appreciation information that equipment Rx2 receiving equipment Rx1 and Rx3 sends, and according to the assessment result of oneself and the communication plan of Optimized Iterative policy update oneself.
Then, equipment Tx2 sends training signal according to the communication plan upgraded, synchronous, and equipment Tx1 and Tx3 still sends training signal by original communication plan.Equipment Rx1, Rx2 and Rx3 receive training signal and estimate the quality of the training signal received separately thus the message transmission rate under assessing respective communication plan and co-channel interference sensitivity.Respective assessment result sends with the form of communication plan appreciation information by equipment Rx1 and Rx2.The communication plan appreciation information that equipment Rx3 receiving equipment Rx1 and Rx2 sends, and according to the assessment result of oneself and the communication plan of Optimized Iterative policy update oneself.
Three communication set repeat above-mentioned steps, until meet the condition of convergence of Optimized Iterative strategy.
Fig. 6 is the block diagram of the first equipment 600 according to an embodiment of the invention.
An embodiment according to a third aspect of the present invention, provides a kind of first equipment 600 of first communication set for wireless distributed communication network frequency spectrum share.This first communication set also comprises second equipment, and this first equipment is sent out and sent data message to this second equipment.This first communication set and other at least one communication set form the shared community of a shared frequency spectrum.
As shown in Figure 6, the first equipment 600 comprises an acquisition device 610, and it is for obtaining a time sequence information.This time sequence information indicates a time period, and only the first communication set can carry out communication plan renewal in this time period.
First equipment 600 also comprises a dispensing device 620, and it is for a communication plan according to the first communication set, sends a training signal to the second equipment.
First equipment 600 also comprises a receiving system 630, it receives information for receiving the training signal sent by the second equipment, and this training signal receives information and indicates the receptivity of training signal or second equipment that indicates on the basis of the receptivity of training signal to the assessment result of the existing communication plan of the first communication set.
Receiving system 630 is also for receiving the communication plan appreciation information sent by each communication set in other at least one communication set, and each communication plan appreciation information indicates the assessment result of each communication set to the communication plan determined separately on the receptivity basis of respective training signal.
First equipment 600 also comprise one more new clothes 640 put, it is for receiving information, communication plan appreciation information and a predetermined Optimized Iterative strategy according to training signal, and the time period indicated by time sequence information upgrades the communication plan of the first communication set.
In an embodiment of the first equipment 600, first equipment 600 also comprises a determining device, it is for the receptivity according to training signal, determine the communication plan appreciation information of the first communication set, the communication plan appreciation information of this first communication set indicates the assessment result of the first equipment to described communication plan on the receptivity basis of described training signal.Dispensing device 620 is also for sending the communication plan appreciation information of the first communication set to other at least one communication set.
Fig. 7 is the block diagram of the second equipment 700 according to an embodiment of the invention.
An embodiment according to a fourth aspect of the present invention, provides a kind of second equipment 700 of first communication set for wireless distributed communication network frequency spectrum share.This first communication set also comprises first equipment, and this first equipment is sent out and sent data message to this second equipment 700.This first communication set and other at least one communication set form the shared community of a shared frequency spectrum.
As shown in Figure 7, the second equipment 700 comprises an acquisition device 710, and it is for obtaining a time sequence information, and this time sequence information indicates a time period, and only the first communication set can carry out communication plan renewal in this time period.
Second equipment 700 also comprises a receiving system 720, and it is for receiving the training signal sent by the first equipment.
Receiving system 720 is also for receiving the communication plan appreciation information sent by each communication set in other at least one communication set described, and each communication plan appreciation information indicates the assessment result of each communication set to the communication plan determined separately on the receptivity basis of respective training signal.
Second equipment 700 also comprises a updating device 730, and it is for the receptivity according to training signal, communication plan appreciation information and a predetermined Optimized Iterative strategy, and the time period indicated by time sequence information upgrades the communication plan of the first communication set.
In an embodiment of the second equipment 700, the second equipment 700 also comprises a determining device and a dispensing device.Determining device is used for the receptivity according to training signal, determine the communication plan appreciation information of the first communication set, the communication plan appreciation information of this first communication set indicates the assessment result of the second equipment 700 to communication plan on the receptivity basis of training signal.Dispensing device is for sending the communication plan appreciation information of the first communication set to other at least one communication set.
In another embodiment of the second equipment 700, the second equipment 700 also comprises a dispensing device, and it is for sending the communication plan of renewal to the first equipment.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.In addition, obviously " comprising " one word do not get rid of other unit or step, odd number does not get rid of plural number.Multiple unit of stating in system claims or device also can be realized by software or hardware by a unit or device.First, second word such as grade is used for representing title, and does not represent any specific order.
Claims (12)
1. the method for the frequency spectrum share in first equipment of first communication set for wireless distributed communication network, this first communication set also comprises second equipment, this first equipment is sent out and is sent data message to this second equipment, this first communication set and other at least one communication set form the shared community of a shared frequency spectrum, and the method comprises:
A. obtain a time sequence information, this time sequence information indicates a time period, and only described first communication set can carry out communication plan renewal in this time period, wherein communication plan at least comprise communication set communicate selected by channel and one in transmitted power;
B. according to a communication plan of described first communication set, a training signal is sent to described second equipment;
C. receive the training signal sent by described second equipment and receive information, this training signal receives information and indicates the receptivity of described training signal or indicate described second equipment assessment result to described communication plan on the basis of the receptivity of described training signal;
D. receive the communication plan appreciation information sent by each communication set in other at least one communication set described, each communication plan appreciation information indicates the assessment result of each communication set to the communication plan determined separately on the receptivity basis of respective training signal; And
E. receive information, described communication plan appreciation information and a predetermined Optimized Iterative strategy according to described training signal, upgrade the described communication plan of described first communication set in the described time period.
2. method according to claim 1, wherein, also comprises step after described step C:
-according to the receptivity of described training signal, determine the communication plan appreciation information of described first communication set, the communication plan appreciation information of this first communication set indicates the assessment result of described first equipment to described communication plan on the receptivity basis of described training signal; And
-send the described communication plan appreciation information of described first communication set to other at least one communication set described.
3. method according to claim 1 and 2, wherein, described communication plan appreciation information at least comprises the one in following content: target capabilities increment and communication plan preference.
4. the method for the frequency spectrum share in second equipment of first communication set for wireless distributed communication network, this first communication set also comprises first equipment, this first equipment is sent out and is sent data message to this second equipment, this first communication set and other at least one communication set form the shared community of a shared frequency spectrum, and the method comprises:
A. obtain a time sequence information, this time sequence information indicates a time period, and only described first communication set can carry out communication plan renewal in this time period, wherein communication plan at least comprise communication set communicate selected by channel and one in transmitted power;
B. the training signal sent by described first equipment is received;
C. receive the communication plan appreciation information sent by each communication set in other at least one communication set described, each communication plan appreciation information indicates the assessment result of each communication set to the communication plan determined separately on the receptivity basis of respective training signal; And
D. according to the receptivity of described training signal, described communication plan appreciation information and a predetermined Optimized Iterative strategy, the described communication plan of described first communication set is upgraded in the described time period.
5. method according to claim 4, wherein, also comprises step after described step b:
-according to the receptivity of described training signal, determine the communication plan appreciation information of described first communication set, the communication plan appreciation information of this first communication set indicates the assessment result of the second equipment to described communication plan on the receptivity basis of described training signal; And
-send the described communication plan appreciation information of described first communication set to other at least one communication set described.
6. method according to claim 4, wherein, also comprises step after described steps d:
-send the communication plan of described renewal to described first equipment.
7. the method according to claim 4 or 5, wherein, described communication plan appreciation information at least comprises the one in following content: target capabilities increment and communication plan preference.
8. first equipment of first communication set for wireless distributed communication network frequency spectrum share, this first communication set also comprises second equipment, this first equipment is sent out and is sent data message to this second equipment, this first communication set and other at least one communication set form the shared community of a shared frequency spectrum, and this first equipment comprises:
An acquisition device, it is for obtaining a time sequence information, this time sequence information indicates a time period, and only described first communication set can carry out communication plan renewal in this time period, wherein communication plan at least comprise communication set communicate selected by channel and one in transmitted power;
A dispensing device, it is for a communication plan according to described first communication set, sends a training signal to described second equipment;
A receiving system, it receives information for receiving the training signal sent by described second equipment, and this training signal receives information and indicates the receptivity of described training signal or indicate described second equipment assessment result to described communication plan on the basis of the receptivity of described training signal;
Described receiving system is also for receiving the communication plan appreciation information sent by each communication set in other at least one communication set described, and each communication plan appreciation information indicates the assessment result of each communication set to the communication plan determined separately on the receptivity basis of respective training signal; And
A updating device, it, for receiving information, described communication plan appreciation information and a predetermined Optimized Iterative strategy according to described training signal, upgrades the described communication plan of described first communication set in the described time period.
9. the first equipment according to claim 8, wherein, also comprises:
A determining device, it is for the receptivity according to described training signal, determine the communication plan appreciation information of described first communication set, the communication plan appreciation information of this first communication set indicates the assessment result of described first equipment to described communication plan on the receptivity basis of described training signal; And
Described dispensing device is also for sending the described communication plan appreciation information of described first communication set to other at least one communication set described.
10. second equipment of first communication set for wireless distributed communication network frequency spectrum share, this first communication set also comprises first equipment, this first equipment is sent out and is sent data message to this second equipment, this first communication set and other at least one communication set form the shared community of a shared frequency spectrum, and this second equipment comprises:
An acquisition device, it is for obtaining a time sequence information, this time sequence information indicates a time period, and only described first communication set can carry out communication plan renewal in this time period, wherein communication plan at least comprise communication set communicate selected by channel and one in transmitted power;
A receiving system, it is for receiving the training signal sent by described first equipment;
Described receiving system is also for receiving the communication plan appreciation information sent by each communication set in other at least one communication set described, and each communication plan appreciation information indicates the assessment result of each communication set to the communication plan determined separately on the receptivity basis of respective training signal; And
A updating device, it, for the receptivity according to described training signal, described communication plan appreciation information and a predetermined Optimized Iterative strategy, upgrades the described communication plan of described first communication set in the described time period.
11. second equipment according to claim 10, wherein, also comprise:
A determining device, it is for the receptivity according to described training signal, determine the communication plan appreciation information of described first communication set, the communication plan appreciation information of this first communication set indicates the assessment result of described second equipment to described communication plan on the receptivity basis of described training signal; And
A dispensing device, it is for sending the described communication plan appreciation information of described first communication set to other at least one communication set described.
12. second equipment according to claim 10, wherein, also comprise:
A dispensing device, it is for sending the communication plan of described renewal to described first equipment.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2009/075016 WO2011060580A1 (en) | 2009-11-18 | 2009-11-18 | Method and device for spectrum sharing in wireless distributed communication network |
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| CN102726086A CN102726086A (en) | 2012-10-10 |
| CN102726086B true CN102726086B (en) | 2015-05-13 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009018300A1 (en) * | 2007-07-31 | 2009-02-05 | Motorola, Inc. | Method and apparatus for spectrum sharing between an incumbent communication system and a cognitive radio system |
| CN101534510A (en) * | 2008-03-11 | 2009-09-16 | 上海贝尔阿尔卡特股份有限公司 | Method and system for sharing distributed frequency spectrum |
| WO2009132674A1 (en) * | 2008-05-02 | 2009-11-05 | Nokia Siemens Networks Oy | Method, system, base station and signal for communicating planned future cell system information in a radio telecommunication network |
-
2009
- 2009-11-18 CN CN200980162001.3A patent/CN102726086B/en active Active
- 2009-11-18 WO PCT/CN2009/075016 patent/WO2011060580A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009018300A1 (en) * | 2007-07-31 | 2009-02-05 | Motorola, Inc. | Method and apparatus for spectrum sharing between an incumbent communication system and a cognitive radio system |
| CN101534510A (en) * | 2008-03-11 | 2009-09-16 | 上海贝尔阿尔卡特股份有限公司 | Method and system for sharing distributed frequency spectrum |
| WO2009132674A1 (en) * | 2008-05-02 | 2009-11-05 | Nokia Siemens Networks Oy | Method, system, base station and signal for communicating planned future cell system information in a radio telecommunication network |
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| WO2011060580A1 (en) | 2011-05-26 |
| CN102726086A (en) | 2012-10-10 |
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