CN105554815A - Channel distribution method and device - Google Patents
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- CN105554815A CN105554815A CN201510897154.XA CN201510897154A CN105554815A CN 105554815 A CN105554815 A CN 105554815A CN 201510897154 A CN201510897154 A CN 201510897154A CN 105554815 A CN105554815 A CN 105554815A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
- H04W28/082—Load balancing or load distribution among bearers or channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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Abstract
The embodiments of the invention disclose a channel distribution method and device and relates to the technical field of communication. By adopting the channel distribution method and device, interference generated in the communication process among different communication protocols is reduced. The method provided by the embodiment of the invention comprises the steps of: obtaining a detection index, a channel number of a current working channel, and a total channel number of a target frequency field; according to the detection index, the channel number of the current working channel and the total channel number, determining initial alternative channels; obtaining SINRs of the initial alternative channels, data transmission conditions of neighbor channels of each channel in the initial alternative channels, and alternative channel indexes; according to the SINRs, the data transmission conditions and the alternative channel indexes, determining final alternative channels in the initial alternative channels; and determining any one channel in the final alternative channels to be a new working channel so as to complete channel distribution. The channel distribution method and device are applicable to the channel distribution facing different communication protocols.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of method and device of channel allocation.
Background technology
Along with the development of the communication technology, especially along with the variation of communication protocol, carry out communication between opposite end and can adopt different communication protocol.In order to reduce the interference produced in communication process, to guarantee communication quality, in the network of open spectrum, when using the same communications protocols to carry out the communication between opposite end, centralized or distributed spectrum allocation may mode can be adopted.
But above-mentioned two kinds of spectrum allocation may modes all need could implement under the precondition of the same communications protocols.For different communication protocol, due to cannot perception mutually between different communication protocol, there is not Signalling exchange each other, therefore, above-mentioned two kinds of methods cannot be used directly in the channel allocation using different communication protocol to carry out in the process communicated.Namely carrying out in the process of channel allocation in the face of different communication protocol, the scheme that can reduce the interference produced in communication process is not also proposed.
Summary of the invention
The embodiment of the present invention provides a kind of method and device of channel allocation, can be reduced in the interference that different communication protocol carries out producing in communication process.
For achieving the above object, the embodiment of the present invention adopts following technical scheme:
First aspect, the embodiment of the present invention provides a kind of method of channel allocation, and described method comprises:
Obtain the channel number of detection index, current operating channel, and the total number of channels amount of target frequency domain, described detection index is for determining the scope of carrying out the channel number of scan channel in described target frequency domain;
According to the channel number of described detection index, described current operating channel, and described total number of channels amount, determine initial alternative channel;
Obtain the data transmission scenarios of the neighbor channel of each channel in the Signal to Interference plus Noise Ratio SINR of described initial alternative channel, described initial alternative channel, and alternative channel index, described alternative channel index meets the first pre-conditioned channel for screening described data transmission scenarios;
According to described SINR, described data transmission scenarios, and described alternative channel index, determine the final alternative channel in described initial alternative channel;
Determine that in described final alternative channel, arbitrary channel is new working channel, to complete the distribution of channel.
Second aspect, the embodiment of the present invention provides a kind of device of channel allocation, and described device comprises:
Acquisition module, for obtaining the channel number of detection index, current operating channel, and the total number of channels amount of target frequency domain, described detection index is for determining the scope of carrying out the channel number of scan channel in described target frequency domain;
Determination module, for the channel number according to described detection index, described current operating channel, and described total number of channels amount, determine initial alternative channel;
Described acquisition module, also for obtaining the data transmission scenarios of the neighbor channel of each channel in the Signal to Interference plus Noise Ratio SINR of described initial alternative channel, described initial alternative channel, and alternative channel index, described alternative channel index meets the first pre-conditioned channel for screening described data transmission scenarios;
Described determination module, also for according to described SINR, described data transmission scenarios, and described alternative channel index, determine the final alternative channel in described initial alternative channel;
Described determination module, also for determining that in described final alternative channel, arbitrary channel is new working channel, to complete the distribution of channel.
The method of a kind of channel allocation that the embodiment of the present invention provides and device, according to the channel number of obtained detection index, current operating channel, and the total number of channels amount of target frequency domain, determine initial alternative channel, afterwards according to the data transmission scenarios of the neighbor channel of each channel in the SINR of obtained initial alternative channel, initial alternative channel, and alternative channel index, determine the final alternative channel in initial alternative channel, and determine that in final alternative channel, arbitrary channel is new working channel, to complete the distribution of channel.Wherein, detection index is for determining the scope of the channel number carrying out scan channel in target frequency domain, and alternative channel index is used for garbled data transmission situation and meets the first pre-conditioned channel.Being compared in prior art is carrying out in the process of channel allocation in the face of different communication protocol, the scheme that can reduce the interference produced in communication process is not also proposed, the present invention can according to the channel number of detection exponential sum current operating channel, determine the initial alternative channel in all channels, afterwards again according to the SINR of channel and the data transmission scenarios of neighbor channel, reduce the scope of initial alternative channel, thus obtain final alternative channel, afterwards in final alternative channel Stochastic choice channel as new working channel.Namely from the channel in certain limit, Stochastic choice one meets the channel of communication condition as new working channel, thus is reduced in the interference that different communication protocol carries out producing in communication process.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The method flow diagram of a kind of channel allocation that Fig. 1 provides for the embodiment of the present invention;
The method flow diagram of the another kind of channel allocation that Fig. 2 provides for the embodiment of the present invention;
The method flow diagram of the another kind of channel allocation that Fig. 3 provides for the embodiment of the present invention;
The apparatus structure schematic diagram of a kind of channel allocation that Fig. 4 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of method of channel allocation, and as shown in Figure 1, the method all has the network equipment to perform, and the method comprises:
101, the channel number of detection index, current operating channel is obtained, and the total number of channels amount of target frequency domain.
Wherein, index is detected for determining the scope of the channel number carrying out scan channel in target frequency domain.
The channel number of current operating channel specifically can represent with Channel_Number.Each channel has oneself channel number, and channel number is unique, may be used for distinguishing different channels.The concrete setting means of channel number does not specifically limit in embodiments of the present invention, can be carried out in advance unifying setting by staff or network side.
In order to avoid being monitored by all channels, and reducing the interference in communication process, can, by when the channel of the spontaneous selection of communication link oneself, adopt detection index to evade.Namely deciding Correspondent Node according to detection index will centered by current operating channel, scanning local channel around, thus monitors local channel.In embodiments of the present invention, detection index specifically can represent with Scanning_Factor, the concrete setting means of detection index does not specifically limit in embodiments of the present invention, specifically can set according to the kind of communication protocol, or be set by the parameter of sweep limits according to other influences.It should be noted that, target frequency domain for sharing in the system of frequency spectrum, can carry out the frequency range shared.
Owing to carrying out transfer of data under different communication protocol, the total number of channels amount that shared frequency range can be divided is different.Therefore, in embodiments of the present invention, can by whole unauthorized frequency domain, the frequency range namely shared is divided into K channel, then channel set specifically can be expressed as CH={Ch
1, Ch
2..., Ch
k, and under often kind of communication protocol, the value of K can change.Wherein, K be greater than 1 positive integer.
102, according to the channel number of detection index, current operating channel, and total number of channels amount, determine initial alternative channel.
103, the data transmission scenarios of the neighbor channel of each channel in the SINR (SignaltoInterferenceplusNoiseRatio, Signal to Interference plus Noise Ratio) of initial alternative channel, initial alternative channel is obtained, and alternative channel index.
Wherein, alternative channel index meets the first pre-conditioned channel for garbled data transmission situation.
In embodiments of the present invention, alternative channel index specifically can represent with Candidate_Factor, the concrete setting means of alternative channel index does not specifically limit in embodiments of the present invention, specifically can according to the occupied frequency of each channel, and communication quality sets, or set according to the parameter of other influences communication quality.It should be noted that, first is pre-conditioned for distinguishing communication quality higher than certain thresholding, and less than or equal to the channel of certain thresholding.Wherein, certain thresholding is in communication process, can carry out proper communication, and produces the threshold value compared with minor interference to other channels.
104, according to SINR, data transmission scenarios, and alternative channel index, determine the final alternative channel in initial alternative channel.
105, determine that in final alternative channel, arbitrary channel is new working channel, to complete the distribution of channel.
In embodiments of the present invention, in final alternative channel, each channel all can as new working channel, therefore, in order to ensure fairness and the randomness of channel allocation, here arbitrary channel in final alternative channel can be defined as new working channel, to complete the distribution of this secondary channel.It should be noted that, in order to be reduced in the interference that different communication protocol carries out producing in communication process as far as possible, above-mentioned steps 101 to step 105 can be performed according to the cycle, to guarantee the distribution carrying out channel in units of the cycle.Namely for the system of whole shared frequency spectrum, working channel is not fixing, changes according to the time cycle.
The method of a kind of channel allocation that the embodiment of the present invention provides, according to the channel number of obtained detection index, current operating channel, and the total number of channels amount of target frequency domain, determine initial alternative channel, afterwards according to the data transmission scenarios of the neighbor channel of each channel in the SINR of obtained initial alternative channel, initial alternative channel, and alternative channel index, determine the final alternative channel in initial alternative channel, and determine that in final alternative channel, arbitrary channel is new working channel, to complete the distribution of channel.Wherein, detection index is for determining the scope of the channel number carrying out scan channel in target frequency domain, and alternative channel index is used for garbled data transmission situation and meets the first pre-conditioned channel.Being compared in prior art is carrying out in the process of channel allocation in the face of different communication protocol, the scheme that can reduce the interference produced in communication process is not also proposed, the present invention can according to the channel number of detection exponential sum current operating channel, determine the initial alternative channel in all channels, afterwards again according to the SINR of channel and the data transmission scenarios of neighbor channel, reduce the scope of initial alternative channel, thus obtain final alternative channel, afterwards in final alternative channel Stochastic choice channel as new working channel.Namely from the channel in certain limit, Stochastic choice one meets the channel of communication condition as new working channel, thus is reduced in the interference that different communication protocol carries out producing in communication process.
In order to rationally reduce monitored range of channels, in an implementation of the embodiment of the present invention, according to the channel number of working channel, total number of channels amount, and the range of channels that index determines to need monitoring can be detected.Therefore, on the basis of implementation as shown in Figure 1, implementation as shown in Figure 2 can also be embodied as.Wherein, step 102 is according to the channel number of detection index, current operating channel, and total number of channels amount, determines initial alternative channel, can be implemented as step 1021 and step 1022:
1021, according to channel number, the total number of channels amount of current operating channel, and detection index, determine the scope of channel number.
In embodiments of the present invention, the scope of channel number specifically can be defined as interval
in all numberings, namely by the set that form to by the corresponding respectively channel of numberings all in above-mentioned interval of the channel that scans.Wherein, Buffer_Size can calculate according to formula, i.e. Buffer_Size=Scanning_Factor × K.
1022, the channel that in the scope determining channel number, each channel number is corresponding is initial alternative channel.
The method of a kind of channel allocation that the embodiment of the present invention provides, according to obtained detection index, the total number of channels amount of target frequency domain, and the channel number of current operating channel, determine the scope of channel number, to determine initial alternative channel according to channel numbers all in the scope of channel number, afterwards according to the SINR of obtained initial alternative channel, the data transmission scenarios of the neighbor channel of each channel in initial alternative channel, and alternative channel index, determine the final alternative channel in initial alternative channel, and determine that in final alternative channel, arbitrary channel is new working channel, to complete the distribution of channel.Wherein, detection index is for determining the scope of the channel number carrying out scan channel in target frequency domain, and alternative channel index is used for garbled data transmission situation and meets the first pre-conditioned channel.Being compared in prior art is carrying out in the process of channel allocation in the face of different communication protocol, the scheme that can reduce the interference produced in communication process is not also proposed, the present invention can according to detection index, and the channel number of working channel, determine the initial alternative channel in all channels, afterwards again according to the SINR of channel and the data transmission scenarios of neighbor channel, rationally reduce the scope of initial alternative channel, thus obtain final alternative channel, afterwards in final alternative channel Stochastic choice channel as new working channel.Namely from the channel in certain limit, Stochastic choice one meets the channel of communication condition as new working channel, thus is reduced in the interference that different communication protocol carries out producing in communication process.Further, due to the uniqueness of channel number, determine initial alternative channel according to channel number, the accuracy of determined initial alternative channel can be ensured.
In order to accurately determine the final alternative channel in initial alternative channel, in an implementation of the embodiment of the present invention, first can generate priority list according to SINR, afterwards according to initial alternative channel described in priority list, determine the data transmission scenarios of neighbor channel, again in conjunction with alternative channel index, determine satisfied second pre-conditioned final alternative channel.Therefore, on the basis of implementation as shown in Figure 1, implementation as shown in Figure 3 can also be embodied as.Wherein, step 104 is according to SINR, data transmission scenarios, and alternative channel index, determines the final alternative channel in initial alternative channel, can be implemented as step 1041 and step 1042:
1041, according to SINR, priority list is generated.
Wherein, in priority list, each initial alternative channel carries out descending according to the size of SINR.
Priority list specifically can represent with Priority_List, namely the size according to SINR is carried out the initial alternative channel that descending obtains, is stored in above-mentioned Priority_List.
1042, according to data transmission scenarios, and alternative channel index, determining to meet in priority list the second pre-conditioned channel is final alternative channel.
It should be noted that, second pre-conditioned for distinguish can as the channel of new working channel with can not as the channel of new working channel.In embodiments of the present invention, unappropriated channel in certain hour can be specially as the channel of new work, or the channel that occupied frequency is lower within a certain period of time.
Such as: spectrum allocation may algorithm is specific as follows:
The method of a kind of channel allocation that the embodiment of the present invention provides, according to obtained detection index, and the total number of channels amount of target frequency domain, determine initial alternative channel, priority list is generated afterwards according to the SINR of obtained initial alternative channel, and according to the data transmission scenarios of the neighbor channel of each channel in initial alternative channel, and alternative channel index, determine that meeting the second pre-conditioned channel in priority list is final alternative channel, and determine that in final alternative channel, arbitrary channel is new working channel, to complete the distribution of channel.Wherein, detection index is for determining the scope of the channel number carrying out scan channel in target frequency domain, and alternative channel index is used for garbled data transmission situation and meets the first pre-conditioned channel.Being compared in prior art is carrying out in the process of channel allocation in the face of different communication protocol, the scheme that can reduce the interference produced in communication process is not also proposed, the present invention can determine the initial alternative channel in all channels according to detection index, afterwards in the process determining final alternative channel, because SINR can reflect the communication quality of channel, therefore, by obtaining priority list according to SINR, and according to the priority list generated, and the data transmission scenarios of neighbor channel, reduce the scope of initial alternative channel, the good final alternative channel of communication quality can be obtained, afterwards in final alternative channel Stochastic choice channel as new working channel.Namely from the channel in certain limit, Stochastic choice one meets the channel of communication condition as new working channel, thus is reduced in the interference that different communication protocol carries out producing in communication process.
The embodiment of the present invention provides a kind of device 20 of channel allocation, and as shown in Figure 4, this device 20 comprises:
Acquisition module 21, for obtaining the channel number of detection index, current operating channel, and the total number of channels amount of target frequency domain, detection index is for determining the scope of the channel number carrying out scan channel in target frequency domain.
Determination module 22, for the channel number according to detection index, current operating channel, and total number of channels amount, determine initial alternative channel.
Acquisition module 21, also for obtaining the data transmission scenarios of the neighbor channel of each channel in the Signal to Interference plus Noise Ratio SINR of initial alternative channel, initial alternative channel, and alternative channel index, alternative channel index is used for garbled data transmission situation and meets the first pre-conditioned channel.
Determination module 22, also for according to SINR, data transmission scenarios, and alternative channel index, determine the final alternative channel in initial alternative channel.
Determination module 22, also for determining that in final alternative channel, arbitrary channel is new working channel, to complete the distribution of channel.
In an implementation of the embodiment of the present invention, determination module 22, specifically for the channel number according to current operating channel, total number of channels amount, and detection index, determine the scope of channel number;
The channel that in the scope determining channel number, each channel number is corresponding is initial alternative channel.
In an implementation of the embodiment of the present invention, determination module 22, specifically for according to SINR, generate priority list, in priority list, each initial alternative channel carries out descending according to the size of SINR;
According to data transmission scenarios, and alternative channel index, determining to meet in priority list the second pre-conditioned channel is final alternative channel.
The device of a kind of channel allocation that the embodiment of the present invention provides, according to the channel number of obtained detection index, current operating channel, and the total number of channels amount of target frequency domain, determine initial alternative channel, afterwards according to the data transmission scenarios of the neighbor channel of each channel in the SINR of obtained initial alternative channel, initial alternative channel, and alternative channel index, determine the final alternative channel in initial alternative channel, and determine that in final alternative channel, arbitrary channel is new working channel, to complete the distribution of channel.Wherein, detection index is for determining the scope of the channel number carrying out scan channel in target frequency domain, and alternative channel index is used for garbled data transmission situation and meets the first pre-conditioned channel.Being compared in prior art is carrying out in the process of channel allocation in the face of different communication protocol, the scheme that can reduce the interference produced in communication process is not also proposed, the present invention can according to the channel number of detection exponential sum current operating channel, determine the initial alternative channel in all channels, afterwards again according to the SINR of channel and the data transmission scenarios of neighbor channel, reduce the scope of initial alternative channel, thus obtain final alternative channel, afterwards in final alternative channel Stochastic choice channel as new working channel.Namely from the channel in certain limit, Stochastic choice one meets the channel of communication condition as new working channel, thus is reduced in the interference that different communication protocol carries out producing in communication process.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.Especially, for device embodiment, because it is substantially similar to embodiment of the method, so describe fairly simple, relevant part illustrates see the part of embodiment of the method.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (RandomAccessMemory, RAM) etc.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (6)
1. a method for channel allocation, is characterized in that, described method comprises:
Obtain the channel number of detection index, current operating channel, and the total number of channels amount of target frequency domain, described detection index is for determining the scope of carrying out the channel number of scan channel in described target frequency domain;
According to the channel number of described detection index, described current operating channel, and described total number of channels amount, determine initial alternative channel;
Obtain the data transmission scenarios of the neighbor channel of each channel in the Signal to Interference plus Noise Ratio SINR of described initial alternative channel, described initial alternative channel, and alternative channel index, described alternative channel index meets the first pre-conditioned channel for screening described data transmission scenarios;
According to described SINR, described data transmission scenarios, and described alternative channel index, determine the final alternative channel in described initial alternative channel;
Determine that in described final alternative channel, arbitrary channel is new working channel, to complete the distribution of channel.
2. method according to claim 1, is characterized in that, the described channel number according to described detection index, described current operating channel, and described total number of channels amount, determines initial alternative channel, comprising:
According to channel number, the described total number of channels amount of described current operating channel, and described detection index, determine the scope of described channel number;
The channel that in the scope determining described channel number, each channel number is corresponding is described initial alternative channel.
3. method according to claim 1 and 2, is characterized in that, described according to described SINR, described data transmission scenarios, and described alternative channel index, determines the final alternative channel in described initial alternative channel, comprising:
According to described SINR, generate priority list, in described priority list, each initial alternative channel carries out descending according to the size of SINR;
According to described data transmission scenarios, and described alternative channel index, determining to meet in described priority list the second pre-conditioned channel is described final alternative channel.
4. a device for channel allocation, is characterized in that, described device comprises:
Acquisition module, for obtaining the channel number of detection index, current operating channel, and the total number of channels amount of target frequency domain, described detection index is for determining the scope of carrying out the channel number of scan channel in described target frequency domain;
Determination module, for the channel number according to described detection index, described current operating channel, and described total number of channels amount, determine initial alternative channel;
Described acquisition module, also for obtaining the data transmission scenarios of the neighbor channel of each channel in the Signal to Interference plus Noise Ratio SINR of described initial alternative channel, described initial alternative channel, and alternative channel index, described alternative channel index meets the first pre-conditioned channel for screening described data transmission scenarios;
Described determination module, also for according to described SINR, described data transmission scenarios, and described alternative channel index, determine the final alternative channel in described initial alternative channel;
Described determination module, also for determining that in described final alternative channel, arbitrary channel is new working channel, to complete the distribution of channel.
5. device according to claim 4, is characterized in that, described determination module, specifically for the channel number according to described current operating channel, described total number of channels amount, and described detection index, determine the scope of described channel number;
The channel that in the scope determining described channel number, each channel number is corresponding is described initial alternative channel.
6. the device according to claim 4 or 5, is characterized in that, described determination module, and specifically for according to described SINR, generate priority list, in described priority list, each initial alternative channel carries out descending according to the size of SINR;
According to described data transmission scenarios, and described alternative channel index, determining to meet in described priority list the second pre-conditioned channel is described final alternative channel.
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Application publication date: 20160504 |