CN105611538B - It is a kind of for authorizing the frequency point polymerization and system of electric power radio band - Google Patents
It is a kind of for authorizing the frequency point polymerization and system of electric power radio band Download PDFInfo
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- CN105611538B CN105611538B CN201511021034.XA CN201511021034A CN105611538B CN 105611538 B CN105611538 B CN 105611538B CN 201511021034 A CN201511021034 A CN 201511021034A CN 105611538 B CN105611538 B CN 105611538B
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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
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
Abstract
The invention discloses for authorizing electric power radio band frequency point polymerization and system include: that base station and N number of terminal carry out band scan respectively, the channel condition of frequency point is detected, and channel condition result is summarized in a base station；The type and bandwidth demand for each business that base station currently needs to carry out data transmission according to N number of terminal are calculated, and obtain the minimum data length of corresponding data frame carrying, and obtain the corresponding intended service parameter of each business；Base station is according to the channel condition summarized as a result, minimum data length and intended service parameter, determine the configuration-direct of each terminal, and configuration-direct is sent to counterpart terminal；Each terminal carries out signal processing according to the configuration-direct received, to each business, and carries out frequency point polymerization in transmitting terminal, to Base Transmitter；The discrete frequency point of this method flexible choice selects different signal processing modes according to channel condition, service bandwidth demand etc., realizes the efficient utilization of frequency spectrum resource.
Description
Technical field
It is the present invention relates to technical field of electricity, in particular to a kind of for authorizing the frequency point polymerization of electric power radio band
And system.
Background technique
40 discrete frequency points in 223~235MHz radio band are licensed to electric power channel radio by the National Radio committee
Letter, each frequency point have 25kHz bandwidth.Electric power wireless communication is carried out wireless communication using these frequency points, can be greatly lowered
By the probability that other unauthorized wireless signals interfere, communication quality is improved, guarantees the reliability of electric power wireless communication.
Currently, be data radio station technology in the most commonly seen wireless communication technique of 230MHz frequency range, but it only used
The 25kHz bandwidth of some frequency point, and modulation system is mostly the low-order-modulateds mode such as FSK, GFSK, spectrum efficiency is low, and passes
Defeated narrower bandwidth.Wireless communication can not be provided for big data band width service to support.
The common technology for increasing transmission bandwidth by multifrequency point is OFDM, and LTE230 is also based on this in 230MHz
Frequency range carries out frequency point polymerization, but this method has followed OFDM technology, and subcarrier (frequency point) number cannot be changed flexibly, and requires
Each frequency point adjacent orthogonal.
Therefore, how to provide it is a kind of for authorizing the frequency point polymerization of electric power radio band, relative to data radio station skill
The single frequency point of art can be improved spectrum utilization efficiency, can flexibly polymerize non-adjacent frequency point relative to OFDM technology and improve data biography
Defeated bandwidth.
Summary of the invention
The object of the present invention is to provide a kind of for authorizing the frequency point polymerization and system of electric power radio band, Neng Gouling
It is living to select discrete frequency point, different signal processing modes is selected according to channel condition, service bandwidth demand etc., realizes frequency spectrum money
The efficient utilization in source.
In order to solve the above technical problems, the present invention provide it is a kind of for authorizing the frequency point polymerization of electric power radio band,
Include:
Base station and N number of terminal carry out band scan respectively, detect to the channel condition of all frequency points, and will obtain
Channel condition result summarizes in the base station；
The type and bandwidth demand for each business that the base station currently needs to carry out data transmission according to N number of terminal
It is calculated, obtains the minimum data length of the corresponding data frame carrying of each business, and it is corresponding predetermined to obtain each business
Service parameter；
The base station according to the channel condition summarized as a result, the minimum data length and the intended service parameter, really
The configuration-direct of fixed each terminal, and configuration-direct is sent to counterpart terminal；Wherein, the configuration-direct includes uplink
Frequency point, downlink frequency point and signal processing mode；
Each terminal carries out signal processing according to the configuration-direct received, to each business, and transmitting terminal into
Line frequency point polymerization, to the Base Transmitter.
Wherein, the base station is according to the channel condition summarized as a result, the minimum data length and intended service ginseng
Number, determines the configuration-direct of each terminal, comprising:
40 authorization frequency points are divided into 3 frequency ranges, wherein frequency range 1 is frequency point in 223.525~224.650MHz frequency range,
Frequency range 2 is frequency point in 228.075~228.750MHz frequency range, and frequency range 3 is frequency point in 230.525~231.650MHz frequency range；
The control channel frequency point f communicated for controlling information is selected in each frequency rangep0, then will be remaining in each frequency range
Frequency point is divided into uplink frequency point group ULp={ fpiAnd downlink frequency point group DLp={ fpj, wherein i, j ∈ [Isosorbide-5-Nitrae 0] and i ≠ j expression section
Interior different frequency point, p=1,2,3 indicate different frequency ranges；
The base station is according to the channel condition summarized as a result, the minimum data length and the intended service parameter, choosing
The uplink frequency point and downlink frequency point in the corresponding frequency range of each terminal are selected, and selects the corresponding signal of each terminal
Processing mode, and by uplink frequency point, downlink frequency point and signal processing mode are as configuration-direct.
Wherein, in system initial deployment, the priority of the base station and the terminal 3 frequency ranges of setting, and each
Frequency point is arranged according to the priority orders of frequency from low to high in frequency range.
Wherein, the uplink frequency point and downlink frequency point selected in the corresponding frequency range of each terminal, comprising:
The corresponding frequency range of each terminal is selected, determines the frequency for meeting condition in the corresponding frequency range of each terminal
Point, and two frequency bins f is selected in the frequency point for meeting condition according to the priority of the frequency point of settingmAnd fn；
The priority orders for meeting the frequency point of condition according to residue, successively judge remaining frequency point fkWhether 2f is metm-fn
≠fk, m, n, k ∈ [Isosorbide-5-Nitrae 0], m ≠ n ≠ k；If satisfied, then selecting the frequency point；If not satisfied, then meeting condition according to residue
The priority orders of frequency point select frequency point.
Wherein, when being more than threshold value there are the bit error rate of terminal, the base station sends band scan instruction to the terminal, makes
The terminal carries out band scan；The base station re-starts frequency point selection according to obtained channel condition result.
The present invention provides a kind of for authorizing the frequency point paradigmatic system of electric power radio band, comprising:
Scan module carries out band scan for base station and N number of terminal respectively, examines to the channel condition of all frequency points
It surveys, and obtained channel condition result is summarized in the base station；
Service Processing Module, each industry for currently needing to carry out data transmission according to N number of terminal for the base station
The type and bandwidth demand of business are calculated, and obtain the minimum data length of the corresponding data frame carrying of each business, and obtain
The corresponding intended service parameter of each business；
Configuration-direct module, for the base station according to the channel condition summarized as a result, the minimum data length and institute
Intended service parameter is stated, determines the configuration-direct of each terminal, and configuration-direct is sent to counterpart terminal；Wherein, institute
Stating configuration-direct includes uplink frequency point, downlink frequency point and signal processing mode；
Aggregation module carries out signal processing to each business for each terminal according to the configuration-direct received,
And frequency point polymerization is carried out in transmitting terminal, to the Base Transmitter.
Wherein, the configuration-direct module includes:
Segmenting unit, for 40 authorization frequency points to be divided into 3 frequency ranges, wherein frequency range 1 be 223.525~
Frequency point in 224.650MHz frequency range, frequency range 2 be 228.075~228.750MHz frequency range in frequency point, frequency range 3 be 230.525~
231.650MHz frequency point in frequency range；
Frequency point group unit, for selecting the control channel frequency point f communicated for controlling information in each frequency rangep0,
Frequency point remaining in each frequency range is divided into uplink frequency point group UL againp={ fpiAnd downlink frequency point group DLp={ fpj, wherein i, j ∈
[Isosorbide-5-Nitrae 0] and i ≠ j indicate frequency point different in section, and p=1,2,3 indicate different frequency ranges；
Configuration-direct unit, for the base station according to the channel condition summarized as a result, the minimum data length and institute
Intended service parameter is stated, selects uplink frequency point and downlink frequency point in the corresponding frequency range of each terminal, and selection is each
The corresponding signal processing mode of the terminal, and by uplink frequency point, downlink frequency point and signal processing mode are as configuration-direct.
Wherein, further includes:
Priority setup module, in system initial deployment, the excellent of 3 frequency ranges to be arranged in the base station and the terminal
First grade, and frequency point is arranged according to the priority orders of frequency from low to high in each frequency range.
Wherein, the configuration-direct unit includes:
Frequency point selects subelement to determine that each terminal is corresponding for selecting the corresponding frequency range of each terminal
The frequency point for meeting condition in frequency range, and two frequency bins are selected in the frequency point for meeting condition according to the priority of the frequency point of setting
fmAnd fn；
The priority orders for meeting the frequency point of condition according to residue, successively judge remaining frequency point fkWhether 2f is metm-fn
≠fk, m, n, k ∈ [Isosorbide-5-Nitrae 0], m ≠ n ≠ k；If satisfied, then selecting the frequency point；If not satisfied, then meeting condition according to residue
The priority orders of frequency point select frequency point.
Wherein, further includes:
Monitoring modular, for when being more than threshold value there are the bit error rate of terminal, the base station to send frequency range to the terminal and sweeps
Instruction is retouched, the terminal is made to carry out band scan；The base station re-starts frequency point selection according to obtained channel condition result.
It is provided by the present invention for authorizing the frequency point polymerization and system of electric power radio band, comprising: base station and N number of
Terminal carries out band scan respectively, detects to the channel condition of all frequency points, and by obtained channel condition result in institute
It states in base station and summarizes；The type and band for each business that the base station currently needs to carry out data transmission according to N number of terminal
Wide demand is calculated, and obtains the minimum data length of the corresponding data frame carrying of each business, and it is corresponding to obtain each business
Intended service parameter；The base station is according to the channel condition summarized as a result, the minimum data length and the intended service
Parameter, determines the configuration-direct of each terminal, and configuration-direct is sent to counterpart terminal；Wherein, the configuration-direct
Including uplink frequency point, downlink frequency point and signal processing mode；Each terminal is according to the configuration-direct received, to each industry
Business carries out signal processing, and carries out frequency point polymerization in transmitting terminal, to the Base Transmitter；
This method can be in discrete authorization frequency point, the discrete frequency point of flexible choice, distributes to power business for counting
According to wireless communication, business datum passes through signal processing, forms frequency point polymerization in signal transmitting terminal.It, can be on different frequency points
Different signal processing modes is selected according to channel condition, service bandwidth demand etc., realizes the efficient utilization of frequency spectrum resource.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is provided by the embodiment of the present invention for authorizing the flow chart of the frequency point polymerization of electric power radio band；
Fig. 2 is the network topology structure schematic diagram of base station and terminal provided by embodiment in the prior art；
Fig. 3 is that the electric power of National Radio committology in the prior art wirelessly communicates the schematic diagram of frequency point；
Fig. 4 is the schematic diagram of channel condition (signal-to-noise ratio) and bit error rate relation provided by the embodiment of the present invention；
Fig. 5 is the schematic diagram of business datum signal processing flow provided by the embodiment of the present invention；
Fig. 6 is the structural schematic diagram that frequency point provided by the embodiment of the present invention polymerize implementation；
Fig. 7 is provided by the embodiment of the present invention for authorizing the structural frames of the frequency point paradigmatic system of electric power radio band
Figure.
Specific embodiment
Core of the invention is to provide a kind of for authorizing the frequency point polymerization and system of electric power radio band, Neng Gouling
It is living to select discrete frequency point, different signal processing modes is selected according to channel condition, service bandwidth demand etc., realizes frequency spectrum money
The efficient utilization in source.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to FIG. 1, Fig. 1 is provided by the embodiment of the present invention for authorizing the frequency point polymerization of electric power radio band
Flow chart；This method may include:
S100, base station and N number of terminal carry out band scan respectively, detect to the channel condition of all frequency points, and will
Obtained channel condition result summarizes in the base station；
Referring to FIG. 2, multiple terminals in base station and administrative area form wireless network.Wireless communication system uses the time-division
It is multiplexed (TDM) frame structure, the base station/terminal in consolidated network sends data and controlled by synchronised clock, and base station/terminal is respectively pre-
If time slot in carry out data transmission, only can be carried out and listen to or data receiver in non-default time slot.The installation position of base station/terminal
It sets and the quantity of terminal can change in the appropriate range according to practical application scene demand.I.e. this method is not expanded by system
The limitation of exhibition has universality.
It base station can be by broadcast synchronization temporal information and time slot allocation information, so that terminal carries out time synchronization.Base station
Band scan instruction is issued in control channel, each terminal starts band scan and collects channel information.Base station waits band scan knot
Shu Hou receives the channel condition result information that each terminal is sent by time slot.
It is control channel that this step, which can preset a frequency point, and the relatively most reliable communication mode of use is (as used
Long verification error correcting code, channel coding, low-order-modulated mode etc.), for base station to terminal transmission initialization control instruction (as broadcasted
Synchronization time information, time slot allocation, band scan instruction, system reset instruction etc.).
Wherein, in system initialisation phase or channel condition more new stage, base station BS and n terminal T1,...,TnRespectively into
Row band scan detects the channel condition (mainly interference signal intensity on frequency point) of 40 frequency points.Base station and each end
After the completion of holding band scan, each terminal sends base station for channel condition result and summarizes.Here all frequency points, which refer to, to be awarded
All frequency points of power have the frequency point of 40 authorizations at present.Here the number of frequency point is not defined, if the frequency point of authorization
If changing, all refer to all frequency points of authorization here；As shown in Figure 3.And this 40 frequency points are concentrated as can see from Figure 3
It is distributed in three frequency ranges.It therefore, can be directly by all frequency points of authorization according to the concentration range of frequency point in order to divide conveniently
Frequency point is divided into three frequency ranges referring for example to Fig. 3 by the division for carrying out frequency range, and frequency range 1 is 223.525~224.650MHz frequency range
Interior frequency point, frequency range 2 are frequency point in 228.075~228.750MHz frequency range, and frequency range 3 is in 230.525~231.650MHz frequency range
Frequency point；The point-score is only a preferred example of the frequency range point-score of this method, and frequency point here can also be divided into 4 frequency ranges,
The quantity of frequency range can be determined according to the actual situation by user；I.e. this method is not to the quantity of frequency range and each frequency range
Range is defined.
The type and band for each business that s110, the base station currently need to carry out data transmission according to N number of terminal
Wide demand is calculated, and obtains the minimum data length of the corresponding data frame carrying of each business, and it is corresponding to obtain each business
Intended service parameter；
Wherein, the business B that each terminal currently needs to carry out data transmission is analyzed in base station11,B12,...,B1o, B21,
B22,...,B2p... ..., Bn1,...,BnqType and bandwidth demand, each terminal need number of services, the type of service transmitted
It is not exactly the same, calculate the minimum data length of each data frame (time slot) carrying.It is currently needed also according to N number of terminal
The type and bandwidth demand of each business carried out data transmission obtain the corresponding intended service parameter of each business, here pre-
Determining service parameter may include the requirement of error code of service rate, service delay requirement, snr of received signal etc..It can also be according to reality
It is set.
S120, the base station are according to the channel condition summarized as a result, the minimum data length and intended service ginseng
Number, determines the configuration-direct of each terminal, and configuration-direct is sent to counterpart terminal；Wherein, the configuration-direct packet
Include uplink frequency point, downlink frequency point and signal processing mode；
Wherein, business demand is analyzed here according to base station, the minimum data for calculating each data frame (time slot) carrying is long
Degree.It is selected according to service bandwidth demand and distributes frequency point；At channel condition and data frame bearer data length selection signal
Reason mode.
Wherein, in signal processing mode, data length is carried according to signal-to-noise ratio and data frame, it can be according in Fig. 4
Channel condition (signal-to-noise ratio) signal processing side corresponding with bit error rate relation selection in the case of the various channel codings provided
Formula.But signal processing mode is not limited to mode shown in Fig. 4.Channel coding can be 1/4,1/3 or 1/2 convolutional encoding；Constellation
Mapping mode can be the modes such as BPSK, QPSK, 16QAM, 64QAM.The mode of various businesses data processing substantially may include pair
Business datum progress message sink coding, channel coding, rate-matched, framing, constellation mapping, molding filtration etc.,
Wherein, step s120 specifically can be base station according to the channel condition summarized, require in conjunction with error code of service rate, business
The parameters such as delay requirement, snr of received signal, data frame carrying data length, in uplink frequency point group UL and downlink frequency point group DL
The middle suitable frequency point of selection, and select reasonable signal processing mode.It completes to the frequency point selection of all terminals and signal base station
After processing mode selection, configuration-direct (including frequency point allocation mode and signal processing mode) is issued to each terminal.According to reality
Border situation, including channel circumstance, power business bandwidth demand etc., can be wherein any with flexible choice in 40 frequency points of authorization
The frequency point of quantity is polymerize.
It preferably, can be by continuous frequency point (such as f in order to avoid third order intermodulation bring clutter interference1~fk) in conduct
Line frequency point, remaining continuous frequency point (fk+1~f40) it is used as downlink frequency point, and preferential selection is not easy to form third order intermodulation in a packet
The frequency point of interference is polymerize.That is, 40 discrete authorization frequency points are divided into two groups, one group includes a certain number of frequency points as upper
Row channel frequency point, another group includes a certain number of frequency points as down channel frequency point, and the mutual not phase of the frequency point in above-mentioned two groups
Together, i.e., the frequency point that a certain frequency point cannot simultaneously as up channel and down channel.
Meanwhile from grouping UL, DL in flexible choice configuration frequency point when, to consider it is spuious caused by avoiding third order intermodulation,
Namely avoid the occurrence of following situation:
2fm-fn≠fk(Or DL)
In addition, up channel frequency point number and down channel frequency point number can be according to practical need under asymmetric transmission scene
It asks and is modified.
Wherein, the uplink frequency point in each frequency range according to actual needs here and downlink frequency point can be with asymmetric distributions.
Namely uplink frequency point number in each frequency range and downlink frequency points can be unequal, are used for nonsymmetric channel data transmission applications field
Scape.
S130, each terminal carry out signal processing to each business according to the configuration-direct received, and are emitting
End carries out frequency point polymerization, to the Base Transmitter.
Wherein, after each terminal receives the configuration-direct that base station is sent, itself each business is believed accordingly
Number processing.The message sink coding of the main finishing service data of signal processing flow, channel coding, rate-matched, constellation mapping, molding
Filtering etc..Fig. 5 can be referred to, a concrete processing procedure is as follows:
Step s301 is generated and outgoing traffic data；Business datum is carried out message sink coding by step s302, is mainly added
Verify error correcting code；Step s303 carries out channel coding, can carry out 1/4,1/3 or 1/2 channel convolutional coding according to configuration；Step
Data Jing Guo channel coding are carried out rate-matched by s304, and data length requirement when meeting framing below, rate-matched can
Repeated or punched according to configuration, puncturing rate may be selected do not punch, 1/7 punching, 1/6 punching, 1/5 punching, 1/4 punching,
1/3 punching, 1/2 punching etc.；Step s305 carries out data framing, in addition to the treated business inputted after above-mentioned steps
Data are also added into timestamp (timestamp is optional), training sequence, frame period etc., form the data frame of a completion；Step
Data frame is carried out constellation mapping by s306, according to configuring the modulation system that the not same order such as BPSK, QPSK, QAM may be selected；Step
S307 carries out interpolation molding filtration, completes signal spectrum optimization.Wherein it is preferred to a business can occupy multiple frequency points, this
When, it in the signal processing, needs that timestamp is added in each frame, it is ensured that the correct timing of each frame data.
Own service data after signal processing, are carried out frequency point polymerization in transmitting terminal, sent to base station by terminal.At this
Mainly corresponding carriers frequency point will be upconverted to according to being pre-configured with by the business datum of signal processing in step, and by each frequency
Point is polymerize.In addition, selected whole frequency points should be in the same frequency range, for example, frequency range when selection frequency point is polymerize
Frequency point in 1 cannot be polymerize with the frequency point in frequency range 2.
Referring to FIG. 6, carrying out up-conversion after terminal completes signal processing to itself each business in transmitting terminal and frequency point being poly-
It closes, method is as shown in Figure 6.In figure the output of each business datum signal processing be 401,402,403 all can be in Fig. 3 in Fig. 6
The output of molding filtration, i.e., the multiple tasks respectively output after signal processing in some terminal are then corresponding to pass through number
Word up-converter module 404,405,406 is to the frequency point configured, after polymerizeing (numbers pile up) using polymerized unit 407, by number
Word-analog conversion module D/A408 is converted into analog signal by digital-to-analog, is filtered and puts by processing module 409
After processing equal greatly, emit into antenna 410.Preferably, base station and terminal antenna 410 can select wide frequency antenna, antenna performance
Each frequency point is consistent in 223~235MHz frequency range.
Preferably, the effect for monitoring service communication, it is first when dropping to threshold value there are the error code of service rate on some frequency point
First reduce adjustment data encoding and modulation system, improve data transfer reliability；If not can guarantee the bit error rate still, in the frequency range
Interior other frequency points of selection carry out data transmission；If frequency point not available in the frequency range, by entire transmission services
It is transferred in another frequency range.
Based on the above-mentioned technical proposal, provided in an embodiment of the present invention for authorizing the frequency point polymerization side of electric power radio band
Method, this method can be in discrete authorization frequency points, the discrete frequency point of flexible choice, and it is wireless for data to distribute to power business
Communication, business datum pass through signal processing, form frequency point polymerization in signal transmitting terminal.It, can be according to letter on different frequency points
Road condition, service bandwidth demand etc. select different signal processing modes, realize the efficient utilization of frequency spectrum resource.
Based on the above-mentioned technical proposal, the base station is according to the channel condition summarized as a result, the minimum data length and institute
Intended service parameter is stated, determines that the configuration-direct of each terminal may include:
40 authorization frequency points are divided into 3 frequency ranges, wherein frequency range 1 is frequency point in 223.525~224.650MHz frequency range,
Frequency range 2 is frequency point in 228.075~228.750MHz frequency range, and frequency range 3 is frequency point in 230.525~231.650MHz frequency range；
The control channel frequency point f communicated for controlling information is selected in each frequency rangep0, then will be remaining in each frequency range
Frequency point is divided into uplink frequency point group ULp={ fpiAnd downlink frequency point group DLp={ fpj, wherein i, j ∈ [Isosorbide-5-Nitrae 0] and i ≠ j expression section
Interior different frequency point, p=1,2,3 indicate different frequency ranges；
The base station is according to the channel condition summarized as a result, the minimum data length and the intended service parameter, choosing
The uplink frequency point and downlink frequency point in the corresponding frequency range of each terminal are selected, and selects the corresponding signal of each terminal
Processing mode, and by uplink frequency point, downlink frequency point and signal processing mode are as configuration-direct.
Wherein, the above process specifically may is that according to frequency point distribution character, as shown in figure 3, in order to reduce filter design
Bandwidth Design requirement, 40 authorization frequency points are divided into 3 sections: frequency range 1 is frequency point in 223.525~224.650MHz frequency range, frequency range 2
For frequency point in 228.075~228.750MHz frequency range, frequency range 3 is frequency point in 230.525~231.650MHz frequency range.Above-mentioned 3
In frequency range, each Frequency Band Selection one for carrying out the control channel frequency point f of control information communicationp0, then frequently by residue in frequency range
Point is divided into uplink frequency point group ULp={ fpiAnd downlink frequency point group DLp={ fpj, wherein i, j ∈ [Isosorbide-5-Nitrae 0] and i ≠ j are indicated in section
Different frequency points, p=1,2,3 indicate different frequency ranges.Uplink frequency point and downlink frequency point in i.e. each frequency range is different.Root
Suitable frequency range is selected according to channel condition, then selects suitable uplink and downlink frequency point in the frequency range.
By above-mentioned setting, base station can be improved to the speed and accuracy of the frequency point allocation mode of terminal.
Preferably, based on the above-mentioned technical proposal, in system initial deployment, 3 frequencies are arranged in the base station and the terminal
The priority of section, and frequency point is arranged according to the priority orders of frequency from low to high in each frequency range.
Wherein, in system initial deployment, according to actual deployment on-site wireless channel circumstance (each frequency range external wireless signals
Disturbed condition), set the priority of 3 frequency ranges previously according to actual conditions in base station and terminal, such as priority from height to
Bottom is ordered as frequency range 1, frequency range 2, frequency range 3.In each frequency range, also in each frequency range uplink frequency point and downlink frequency point carry out
Priority ranking can be according to the sequence arrangement of frequency from low to high in each frequency range here in order to reduce system complexity
Frequency point priority.
After setting up priority, i.e., base station and terminal disposition are completed after starting to work, and base station is according to itself band scan
The channel condition result information fed back with each terminal is selected from frequency range 1, frequency range 2 and frequency range 3 first according to channel condition
Suitably, the forward frequency range of priority, then select frequency point appropriate to transmit frequency point as business in the frequency range.The selection of frequency point
It can also be carried out according to the sequence of priority.I.e. business demand is analyzed in base station, calculates each data frame (time slot) carrying most
Small data length.It is selected according to service bandwidth demand and priority and distributes frequency point；Number is carried according to channel condition and data frame
According to length selection signal processing mode.
Wherein, in such a way that priority is set according to the self-condition of each terminal, base station can be made targeted,
And it is efficiently completed the frequency point allocation work to terminal.Improve data transfer bandwidth.
Preferably, based on the above-mentioned technical proposal, the uplink frequency point in the corresponding frequency range of each terminal of selection and
Downlink frequency point, comprising:
The corresponding frequency range of each terminal is selected, determines the frequency for meeting condition in the corresponding frequency range of each terminal
Point, and two frequency bins f is selected in the frequency point for meeting condition according to the priority of the frequency point of settingmAnd fn；
The priority orders for meeting the frequency point of condition according to residue, successively judge remaining frequency point fkWhether 2f is metm-fn
≠fk, m, n, k ∈ [Isosorbide-5-Nitrae 0], m ≠ n ≠ k；If satisfied, then selecting the frequency point；If not satisfied, then meeting condition according to residue
The priority orders of frequency point select frequency point.
Wherein, multiple frequency points in a frequency range can polymerize by frequency point polymerization, not necessarily only 3 (can
To be greater than 3).Here the mathematical relationship between 3 frequency points told about is the influence in order to reduce third order intermodulation to system performance.One
When selecting multiple frequency points in a frequency range, it is preferable that the frequency point selected can satisfy this requirement between each other, avoid 2fm-fn≠
fk, m, n, k ∈ [Isosorbide-5-Nitrae 0], m ≠ n ≠ k, but be not essential option.
When selecting three frequency points, the uplink frequency point and downlink frequency point selected in the corresponding frequency range of each terminal
May include:
The corresponding frequency range of each terminal is selected, determines the frequency for meeting condition in the corresponding frequency range of each terminal
Point, and two frequency bins f is selected in the frequency point for meeting condition according to the priority of the frequency point of settingmAnd fn；
The priority orders for meeting the frequency point of condition according to residue, successively judge remaining frequency point fkWhether 2f is metm-fn
≠fk, m, n, k ∈ [Isosorbide-5-Nitrae 0], m ≠ n ≠ k；If satisfied, then selecting the frequency point as third frequency point.
Wherein, it if above-mentioned detailed process may is that the frequency point of selection is more than or equal to 3, needs to avoid generating as far as possible
Third order intermodulation is spuious.Assuming that arranging all frequency point { f from high to low according to priority in UL grouping1,f2,f3,f4,f5... },
And all meets signal-to-noise ratio requirement, need that three frequency points is therefrom selected to be polymerize.According to priority, preferred frequency point f1And f2.?
In the selection of third frequency point, if frequency point f3Meet 2f1-f2=f3Or 2f2-f1=f3Then abandon frequency point f3, select frequency point f4。
At this point, there is still a need for verifying f1、f2、f4Between whether meet 2fm-fn≠fk, m, n, k ∈ { 1,2,4 }, if m ≠ n ≠ k meets above formula
Condition can then select then frequency point f4。
Based on above-mentioned any technical solution, it is preferred that when there are the bit error rate of terminal be more than threshold value when, the base station to this
Terminal sends band scan instruction, and the terminal is made to carry out band scan；The base station according to obtained channel condition result again
Carry out frequency point selection.
Wherein, when the decline of the communication quality of some (or certain is some) terminal, which causes the bit error rate to deteriorate, is more than threshold value, base
The instruction of channel frequency sweep can be sent for the terminal by standing, and reselected frequency point and communicated.Data can also be adjusted by reducing
Coding and modulation system, improve data transfer reliability；If not can guarantee the bit error rate still, other frequency points are selected in the frequency range
Carry out data transmission；If frequency point not available in the frequency range, entire transmission services are transferred to another frequency
In section.
Based on the above-mentioned technical proposal, provided in an embodiment of the present invention for authorizing the frequency point polymerization side of electric power radio band
Method, this method can be in discrete authorization frequency points, the discrete frequency point of flexible choice, and it is wireless for data to distribute to power business
Communication, business datum pass through signal processing, form frequency point polymerization in signal transmitting terminal.It, can be according to letter on different frequency points
Road condition, service bandwidth demand etc. select different signal processing modes, realize the efficient utilization of frequency spectrum resource.And pass through setting
The priority of frequency range and frequency point improves the speed and accuracy of frequency point allocation.
It, can be in discrete authorization the embodiment of the invention provides for authorizing the frequency point polymerization of electric power radio band
In frequency point, the discrete frequency point of flexible choice distributes to power business for data radio communication.
Below to provided in an embodiment of the present invention for authorizing the frequency point paradigmatic system of electric power radio band to be introduced, under
Text description is used to authorize the frequency point paradigmatic system of electric power radio band and is described above to authorize electric power radio band
Frequency point polymerization can correspond to each other reference.
Referring to FIG. 7, Fig. 7 is provided by the embodiment of the present invention for authorizing the frequency point paradigmatic system of electric power radio band
Structural block diagram；The system may include:
Scan module 100 carries out band scan for base station and N number of terminal respectively, to the channel conditions of all frequency points into
Row detection, and obtained channel condition result is summarized in the base station；
Service Processing Module 200 according to N number of terminal currently needs to carry out data transmission each for the base station
The type and bandwidth demand of business are calculated, and obtain the minimum data length of the corresponding data frame carrying of each business, and obtain
Take the corresponding intended service parameter of each business；
Configuration-direct module 300, for the base station according to the channel condition summarized as a result, the minimum data length and
The intended service parameter, determines the configuration-direct of each terminal, and configuration-direct is sent to counterpart terminal；Wherein,
The configuration-direct includes uplink frequency point, downlink frequency point and signal processing mode；
Aggregation module 400 carries out at signal each business for each terminal according to the configuration-direct received
Reason, and frequency point polymerization is carried out in transmitting terminal, to the Base Transmitter.
Preferably, the configuration-direct module 300 includes:
Segmenting unit, for 40 authorization frequency points to be divided into 3 frequency ranges, wherein frequency range 1 be 223.525~
Frequency point in 224.650MHz frequency range, frequency range 2 be 228.075~228.750MHz frequency range in frequency point, frequency range 3 be 230.525~
231.650MHz frequency point in frequency range；
Frequency point group unit, for selecting the control channel frequency point f communicated for controlling information in each frequency rangep0,
Frequency point remaining in each frequency range is divided into uplink frequency point group UL againp={ fpiAnd downlink frequency point group DLp={ fpj, wherein i, j ∈
[Isosorbide-5-Nitrae 0] and i ≠ j indicate frequency point different in section, and p=1,2,3 indicate different frequency ranges；
Configuration-direct unit, for the base station according to the channel condition summarized as a result, the minimum data length and institute
Intended service parameter is stated, selects uplink frequency point and downlink frequency point in the corresponding frequency range of each terminal, and selection is each
The corresponding signal processing mode of the terminal, and by uplink frequency point, downlink frequency point and signal processing mode are as configuration-direct.
Based on the above-mentioned technical proposal, which can also include:
Priority setup module, in system initial deployment, the excellent of 3 frequency ranges to be arranged in the base station and the terminal
First grade, and frequency point is arranged according to the priority orders of frequency from low to high in each frequency range.
Preferably, the configuration-direct unit includes:
Frequency point selects subelement to determine that each terminal is corresponding for selecting the corresponding frequency range of each terminal
The frequency point for meeting condition in frequency range, and two frequency bins are selected in the frequency point for meeting condition according to the priority of the frequency point of setting
fmAnd fn；
The priority orders for meeting the frequency point of condition according to residue, successively judge remaining frequency point fkWhether 2f is metm-fn
≠fk, m, n, k ∈ [Isosorbide-5-Nitrae 0], m ≠ n ≠ k；If satisfied, then selecting the frequency point；If not satisfied, then meeting condition according to residue
The priority orders of frequency point select frequency point.
Based on above-mentioned any technical solution, which can also include:
Monitoring modular, for when being more than threshold value there are the bit error rate of terminal, the base station to send frequency range to the terminal and sweeps
Instruction is retouched, the terminal is made to carry out band scan；The base station re-starts frequency point selection according to obtained channel condition result.
Each embodiment is described in a progressive manner in specification, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
Speech, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part illustration
?.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Above to provided by the present invention for authorizing the frequency point polymerization of electric power radio band and system to carry out in detail
It is thin to introduce.Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention.It should be pointed out that for the ordinary skill of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for personnel, these improvement
It is also fallen within the protection scope of the claims of the present invention with modification.
Claims (10)
1. a kind of for authorizing the frequency point polymerization of electric power radio band characterized by comprising
Base station and N number of terminal carry out band scan respectively, the channel that detects, and will obtain to the channel condition of all frequency points
Conditional outcome summarizes in the base station；
The type and bandwidth demand for each business that the base station currently needs to carry out data transmission according to N number of terminal carry out
It calculates, obtains the minimum data length of the corresponding data frame carrying of each business, and obtain the corresponding intended service of each business
Parameter；
The base station is according to the channel condition summarized as a result, the minimum data length and the intended service parameter, determine every
The configuration-direct of a terminal, and configuration-direct is sent to counterpart terminal；Wherein, the configuration-direct includes upper line frequency
Point, downlink frequency point and signal processing mode；
Each terminal carries out signal processing according to the configuration-direct received, to each business, and carries out frequency in transmitting terminal
Point polymerization, to the Base Transmitter.
2. frequency point polymerization as described in claim 1, which is characterized in that the base station is according to the channel condition knot summarized
Fruit, the minimum data length and the intended service parameter, determine the configuration-direct of each terminal, comprising:
40 authorization frequency points are divided into 3 frequency ranges, wherein frequency range 1 is frequency point in 223.525~224.650MHz frequency range, frequency range 2
For frequency point in 228.075~228.750MHz frequency range, frequency range 3 is frequency point in 230.525~231.650MHz frequency range；
The control channel frequency point f communicated for controlling information is selected in each frequency rangep0, then by frequency point remaining in each frequency range
It is divided into uplink frequency point group ULp={ fpiAnd downlink frequency point group DLp={ fpj, wherein i, j ∈ [Isosorbide-5-Nitrae 0] and i ≠ j are indicated in section not
Same frequency point, p=1,2,3 indicate different frequency ranges；
The base station is according to the channel condition summarized as a result, the minimum data length and the intended service parameter, selection are every
Uplink frequency point and downlink frequency point in the corresponding frequency range of a terminal, and the corresponding signal processing of each terminal of selection
Mode, and by uplink frequency point, downlink frequency point and signal processing mode are as configuration-direct.
3. frequency point polymerization as claimed in claim 2, which is characterized in that in system initial deployment, the base station and institute
The priority that 3 frequency ranges are arranged in terminal is stated, and arranges frequency point according to the priority orders of frequency from low to high in each frequency range.
4. frequency point polymerization as claimed in claim 3, which is characterized in that described to select the corresponding frequency range of each terminal
In uplink frequency point and downlink frequency point, comprising:
The corresponding frequency range of each terminal is selected, determines the frequency point for meeting condition in the corresponding frequency range of each terminal,
And two frequency bins f is selected in the frequency point for meeting condition according to the priority of the frequency point of settingmAnd fn；
The priority orders for meeting the frequency point of condition according to residue, successively judge remaining frequency point fkWhether 2f is metm-fn≠fk,
m,n,k∈[1,40],m≠n≠k；If satisfied, then selecting the frequency point；If not satisfied, then meet the frequency point of condition according to residue
Priority orders select frequency point.
5. such as the described in any item frequency point polymerizations of Claims 1-4, which is characterized in that when there are the bit error rates of terminal to surpass
When crossing threshold value, the base station sends band scan instruction to the terminal, and the terminal is made to carry out band scan；The base station according to
To channel condition result re-start frequency point selection.
6. a kind of for authorizing the frequency point paradigmatic system of electric power radio band characterized by comprising
Scan module carries out band scan for base station and N number of terminal respectively, detects to the channel condition of all frequency points,
And obtained channel condition result is summarized in the base station；
Service Processing Module, each business for currently needing to carry out data transmission according to N number of terminal for the base station
Type and bandwidth demand are calculated, and obtain the minimum data length of the corresponding data frame carrying of each business, and obtain each
The corresponding intended service parameter of business；
Configuration-direct module, for the base station according to the channel condition summarized as a result, the minimum data length and described pre-
Determine service parameter, determine the configuration-direct of each terminal, and configuration-direct is sent to counterpart terminal；Wherein, described to match
Setting instruction includes uplink frequency point, downlink frequency point and signal processing mode；
Aggregation module, for each terminal according to the configuration-direct received, to each business progress signal processing, and
Transmitting terminal carries out frequency point polymerization, to the Base Transmitter.
7. frequency point paradigmatic system as claimed in claim 6, which is characterized in that the configuration-direct module includes:
Segmenting unit, for 40 authorization frequency points to be divided into 3 frequency ranges, wherein frequency range 1 is 223.525~224.650MHz frequency
Frequency point in section, frequency range 2 are frequency point in 228.075~228.750MHz frequency range, and frequency range 3 is 230.525~231.650MHz frequency range
Interior frequency point；
Frequency point group unit, for selecting the control channel frequency point f communicated for controlling information in each frequency rangep0, then will
Remaining frequency point is divided into uplink frequency point group UL in each frequency rangep={ fpiAnd downlink frequency point group DLp={ fpj, wherein i, j ∈ [Isosorbide-5-Nitrae 0]
And i ≠ j indicates frequency point different in section, p=1,2,3 indicate different frequency ranges；
Configuration-direct unit, for the base station according to the channel condition summarized as a result, the minimum data length and described pre-
Determine service parameter, selects uplink frequency point and downlink frequency point in the corresponding frequency range of each terminal, and described in selection each
The corresponding signal processing mode of terminal, and by uplink frequency point, downlink frequency point and signal processing mode are as configuration-direct.
8. frequency point paradigmatic system as claimed in claim 7, which is characterized in that further include:
Priority setup module, in system initial deployment, the preferential of 3 frequency ranges to be arranged in the base station and the terminal
Grade, and frequency point is arranged according to the priority orders of frequency from low to high in each frequency range.
9. frequency point paradigmatic system as claimed in claim 8, which is characterized in that the configuration-direct unit includes:
Frequency point selects subelement to determine the corresponding frequency range of each terminal for selecting the corresponding frequency range of each terminal
The interior frequency point for meeting condition, and two frequency bins f is selected in the frequency point for meeting condition according to the priority of the frequency point of settingmWith
fn；
The priority orders for meeting the frequency point of condition according to residue, successively judge remaining frequency point fkWhether 2f is metm-fn≠fk,
m,n,k∈[1,40],m≠n≠k；If satisfied, then selecting the frequency point；If not satisfied, then meet the frequency point of condition according to residue
Priority orders select frequency point.
10. such as the described in any item frequency point paradigmatic systems of claim 6 to 9, which is characterized in that further include:
Monitoring modular, for when being more than threshold value there are the bit error rate of terminal, the base station to send band scan to the terminal and refers to
It enables, the terminal is made to carry out band scan；The base station re-starts frequency point selection according to obtained channel condition result.
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| CN106100810A (en) * | 2016-06-16 | 2016-11-09 | 北京汇通金财信息科技有限公司 | Communicator and method based on carrier aggregation technology |
| CN106131854A (en) * | 2016-06-16 | 2016-11-16 | 北京汇通金财信息科技有限公司 | Base station and signaling method based on frequency spectrum perception technology |
| CN106304096A (en) * | 2016-08-31 | 2017-01-04 | 国网河南省电力公司开封供电公司 | The method and apparatus carrying out spectrum management in electric power radio communication |
| CN106899990B (en) * | 2017-01-24 | 2020-06-16 | 深圳市有方科技股份有限公司 | Networking self-optimization method, device and system |
| CN109275190B (en) | 2017-07-17 | 2021-10-26 | 华为技术有限公司 | Communication method and device |
| CN109088687A (en) * | 2018-09-29 | 2018-12-25 | 中国科学院上海微系统与信息技术研究所 | A kind of spectrum scan mode configuration method |
| CN109640391B (en) * | 2019-01-29 | 2021-05-14 | 中国科学院上海微系统与信息技术研究所 | Method for switching synchronous signal and broadcast channel in electric power wireless communication system |
| CN113115447B (en) * | 2020-01-13 | 2023-01-13 | 中国移动通信有限公司研究院 | Frequency band self-adaptive selection method and device and computer readable storage medium |
| CN113162695B (en) * | 2021-04-19 | 2022-04-26 | 烽火通信科技股份有限公司 | Optical layer OAM information transmission method and transmission system |
| CN115379466B (en) * | 2022-10-25 | 2023-02-03 | 国网信息通信产业集团有限公司 | Planning calculation method, system and electronic equipment for deploying wireless access node |
| CN116782304B (en) * | 2023-08-24 | 2023-11-03 | 中国电力科学研究院有限公司 | Multi-channel communication equipment and method |
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