CN107920361A - A kind of method of adjustment and device of cell frequency range - Google Patents
A kind of method of adjustment and device of cell frequency range Download PDFInfo
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- CN107920361A CN107920361A CN201610884247.3A CN201610884247A CN107920361A CN 107920361 A CN107920361 A CN 107920361A CN 201610884247 A CN201610884247 A CN 201610884247A CN 107920361 A CN107920361 A CN 107920361A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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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
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
- H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
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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
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
- H04W28/0242—Determining whether packet losses are due to overload or to deterioration of radio communication conditions
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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
An embodiment of the present invention provides a kind of method of adjustment of cell frequency range and a kind of corresponding device, the described method includes：Measure the interference noise in cell frequency range, therefrom filter out the interference noise higher than pre-determined threshold, determine position and the quantity of the Physical Resource Block corresponding to the interference noise higher than pre-determined threshold, frequency sweep is judged whether to according to the position of Physical Resource Block and quantity, when needing frequency sweep, Continuous Band can be used by obtaining maximum according to frequency sweep result, Continuous Band can be used according to maximum, center frequency point and frequency range, adjust center of housing estate frequency point and frequency range, using the embodiment of the present invention, it can be determined whether to carry out frequency sweep according to disturbed condition, and the center frequency point of cell can be adjusted according to frequency sweep result and maximizes selection available frequency band, effectively it scheduled resource, it ensure that the handling capacity of cell, the frequency range and center frequency point of cell can be adjusted in real time according to the change of the interference noise of environment at the same time, carry out ELIMINATION OF ITS INTERFERENCE.
Description
Technical field
The present invention relates to field of communication technology, more particularly to a kind of method of adjustment and device of cell frequency range.
Background technology
TD-LTE (LTE, Long Term Evolution) communication system, down frequency spectrum resources are identical thereon and channel pair
Title property.
Since the electromagnetic environment of wireless communications environment is complicated, commercial communication operator base station, the equipment such as broadcast emission tower, with
And other wireless telecom equipments such as shortwave, ultrashort wave, microwave, cluster intercommunication etc. mix use, wireless communication networks are produced dry
Disturb, cause communication quality to decline, or even the serious consequence such as communication disruption.
At present, the frequency range disturbed for presence, if it is determined that it is unavailable, then by artificially inquiring about uplink IOT
(Interoperability Tests, interoperability testing) or frequency sweep is carried out by frequency spectrograph, obtain interference band, artificially
Frequency point and band information are changed, ensures that the frequency range of base station can use.
Resource selection scheduling is carried out by uplink and downlink Frequency Band Selection method, to alleviate the electromagnetic interference in wireless environment,
But since the presence that the Frequency Band Selection of channel is either disturbed, part resource cannot be dispatched fully, it result in power
Waste, cause the decline of the entire throughput of cell.
By artificially reducing service bandwidth with promotion signal intensity, strengthen the method for communication anti-interference capability, be to sacrifice
Cell throughout ability is cost, although increasing the covering of cell, this is not avoided that interference, and the frequency range selected cannot
It is changed in real time according to the change of the interference noise of environment.
The content of the invention
In view of the above problems, it is proposed that the embodiment of the present invention overcomes the above problem or at least in part in order to provide one kind
A kind of method of adjustment of the cell frequency range to solve the above problems and a kind of corresponding device.
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of method of adjustment of cell frequency range, the cell bag
Frequency range and center frequency point are included, the described method includes：
Measure the interference noise in cell frequency range；The interference noise has corresponding Physical Resource Block；
The interference noise higher than pre-determined threshold is filtered out in the cell frequency range；
Determine position and the quantity of the Physical Resource Block corresponding to the interference noise higher than pre-determined threshold；
Frequency sweep is judged whether to according to the position of the Physical Resource Block and quantity；
When the position according to the Physical Resource Block and quantity determine to carry out frequency sweep, swept in the cell frequency range
Frequently；
Continuous Band can be used by obtaining maximum according to frequency sweep result；
Continuous Band, center frequency point and frequency range can be used according to the maximum, adjusts the center frequency point and frequency range of the cell.
Preferably, described the step of judging whether to frequency sweep according to the position of the Physical Resource Block and quantity, includes：
Judge whether the position of the Physical Resource Block is overlapping with the center frequency point；
If the position of Physical Resource Block is overlapping with the center frequency point, it is judged as needing to carry out in the cell frequency range
Frequency sweep；
If the position of Physical Resource Block is not overlapping with the center frequency point, calculate the quantity of the Physical Resource Block with it is small
The ratio of the total quantity of the Physical Resource Block in area；
Judge whether the ratio exceedes default frequency sweep thresholding；
If the ratio exceedes default frequency sweep thresholding, it is judged as needing to carry out frequency sweep in the cell frequency range.
Preferably, the frequency sweep that carried out in the cell frequency range includes：
Obtain frequency sweep frequency range；
According to default sweeping steps and the frequency sweep frequency range frequency sweep is carried out in the cell frequency range.
Preferably, it is described to be included according to frequency sweep result acquisition maximum with the step of Continuous Band：
Obtain the interference noise in frequency sweep frequency range；
Interference noise in the frequency sweep frequency range filters out the interference noise higher than pre-determined threshold；
Continuous Band can be used by obtaining maximum based on the interference noise higher than pre-determined threshold.
Preferably, it is described to use Continuous Band, center frequency point and frequency range according to the maximum, adjust the center of housing estate frequency
The step of point and frequency range, includes：
Judge whether the maximum can overlapping with the cell frequency range with Continuous Band；The cell frequency range has corresponding
Bandwidth of cell；
If the maximum can use Continuous Band and the cell frequency range not overlapping, judge that the maximum can use Continuous Band phase
Whether the bandwidth answered is more than bandwidth of cell；
If the maximum can be wider than bandwidth of cell with the corresponding band of Continuous Band, by the center frequency point tune of the cell
The whole center frequency point that Continuous Band can be used for the maximum；
If the maximum can be less than bandwidth of cell with the corresponding bandwidth of Continuous Band, the maximum can be used into Continuous Band
Corresponding bandwidth is compared with multiple preset bandwidth；
According to comparative result selected bandwidth is filtered out from the preset bandwidth；
The center frequency point of the cell is adjusted to the maximum center frequency point that can use Continuous Band, and, by the cell
Bandwidth adjustment is selected bandwidth.
Preferably, the method further includes：
The center frequency point of cell after adjustment and bandwidth are reported into operation maintenance center, the operation maintenance center be used for according to
Cell is re-established according to the center frequency point and bandwidth of cell after the adjustment.
Preferably, it is described measurement cell frequency range in interference noise the step of include：
Measurement period is set；
According to the interference noise in measurement period measurement cell frequency range.
The embodiment of the invention also discloses a kind of adjusting apparatus of cell frequency range, described device includes：
Interference noise measurement module, for measuring the interference noise in cell frequency range；The interference noise has corresponding
Physical Resource Block；
Interference noise screening module, for filtering out the interference noise higher than pre-determined threshold in the cell frequency range；
Physical Resource Block position and quantity determining module, for determining corresponding to the interference noise higher than pre-determined threshold
Physical Resource Block position and quantity；
Frequency sweep judgment module, frequency sweep is judged whether to for the position according to the Physical Resource Block and quantity；
Scan module, for when the position according to the Physical Resource Block and quantity determine to carry out frequency sweep, described small
Frequency sweep is carried out in area's frequency range；
Maximum can use Continuous Band acquisition module, and Continuous Band can be used for obtaining maximum according to frequency sweep result；
Module is adjusted, for Continuous Band, center frequency point and frequency range can be used according to the maximum, is adjusted in the cell
Heart frequency point and frequency range.
Preferably, the frequency sweep judgment module includes：
The overlapping judging submodule of center frequency point, for judge the Physical Resource Block position whether with the center frequency point
It is overlapping；
First frequency sweep determination sub-module, if the position for Physical Resource Block is overlapping with the center frequency point, is judged as
Need to carry out frequency sweep in the cell frequency range；
Ratio calculation submodule, if the position for Physical Resource Block is not overlapping with the center frequency point, described in calculating
The ratio of the quantity of Physical Resource Block and the total quantity of the Physical Resource Block of cell；
Ratio in judgement submodule, for judging whether the ratio exceedes default frequency sweep thresholding；
Second frequency sweep determination sub-module, if exceeding default frequency sweep thresholding for the ratio, is judged as needing described
Frequency sweep is carried out in cell frequency range.
Preferably, the scan module includes：
Frequency sweep frequency range acquisition submodule, for obtaining frequency sweep frequency range；
Frequency sweep submodule, for carrying out frequency sweep in the cell frequency range according to default sweeping steps and the frequency sweep frequency range.
Preferably, the maximum can be included with Continuous Band acquisition module：
Interference noise acquisition submodule, for obtaining the interference noise in frequency sweep frequency range；
Interference noise screens submodule, is filtered out for the interference noise in the frequency sweep frequency range higher than pre-determined threshold
Interference noise；
Maximum can use Continuous Band acquisition submodule, for obtaining maximum based on the interference noise higher than pre-determined threshold
Continuous Band can be used.
Preferably, the adjustment module includes：
The overlapping judging submodule of frequency range, for judge the maximum can with Continuous Band whether with the cell frequency range weight
It is folded；The cell frequency range has corresponding bandwidth of cell；
Amount of bandwidth judging submodule, if for the maximum Continuous Band and the cell frequency range can be used not overlapping, sentences
Whether the maximum of breaking can be more than bandwidth of cell with the corresponding bandwidth of Continuous Band；
Center frequency point adjusts submodule, will if the maximum can be wider than bandwidth of cell with the corresponding band of Continuous Band
The center frequency point of the cell, which is adjusted to the maximum, can use the center frequency point of Continuous Band；
Bandwidth comparison sub-module, will if can be less than bandwidth of cell with the corresponding bandwidth of Continuous Band for the maximum
The maximum can be with the corresponding bandwidth of Continuous Band compared with multiple preset bandwidth；
Bandwidth selectes submodule, for filtering out selected bandwidth from the preset bandwidth according to comparative result；
Bandwidth and center frequency point adjustment submodule, for the center frequency point of the cell to be adjusted to maximum available continuous frequency
The center frequency point of section, and, the bandwidth of cell is adjusted to selected bandwidth.
Preferably, described device further includes：
Reporting module, for the center frequency point of cell after adjustment and bandwidth to be reported to operation maintenance center, the operation
Maintenance centre is used to re-establish cell according to the center frequency point and bandwidth of cell after the adjustment.
Preferably, the interference noise measurement module includes：
Cycle sets submodule, for setting measurement period；
Submodule is measured, for according to the interference noise in measurement period measurement cell frequency range.
The embodiment of the present invention includes advantages below：
The embodiment of the present invention, by measuring the interference noise of cell, the physics according to the interference noise for exceeding pre-determined threshold
The position of resource block and quantity determine the need for carrying out frequency sweep to cell, when needing frequency sweep, obtain in frequency sweep result most
Continuous Band available greatly, according to maximum frequency range and the center that can be used Continuous Band and frequency range, the center frequency point of cell, adjust cell
Frequency point, re-establishes cell, using the embodiment of the present invention, can be determined whether to carry out frequency sweep according to disturbed condition, and can
The center frequency point of cell is adjusted according to frequency sweep result and maximizes selection available frequency band, resource is effectively scheduled, ensure that cell
Handling capacity, while can according to the interference noise of environment change in real time adjustment cell frequency range and center frequency point, done
Disturb exclusion.
Brief description of the drawings
Fig. 1 is a kind of step flow chart of the method for adjustment embodiment one of cell frequency range of the present invention；
Fig. 2 is a kind of step flow chart of the method for adjustment embodiment two of cell frequency range of the present invention；
Fig. 3 is the base station frequency sweep process chart of the present invention；
Fig. 4 is the frequency sweep function internal processes figure of the present invention；
Fig. 5 is that the frequency point of the present invention and bandwidth judge report flow figure；
Fig. 6 is a kind of structure diagram of the adjusting apparatus embodiment of cell frequency range of the present invention；
Fig. 7 is a kind of structure diagram of another embodiment of adjusting apparatus of cell frequency range of the present invention.
Embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
Reference Fig. 1, shows a kind of step flow chart of the method for adjustment embodiment one of cell frequency range of the present invention, specifically
It may include steps of：
Step 101, the interference noise in cell frequency range is measured；The interference noise has corresponding Physical Resource Block；
Step 102, the interference noise higher than pre-determined threshold is filtered out in the cell frequency range；
Step 103, position and the quantity of the Physical Resource Block corresponding to the interference noise higher than pre-determined threshold are determined；
Step 104, frequency sweep is judged whether to according to the position of the Physical Resource Block and quantity；
Step 105, when the position according to the Physical Resource Block and quantity determine to carry out frequency sweep, in the cell frequency range
Interior carry out frequency sweep；
Step 106, Continuous Band can be used by obtaining maximum according to frequency sweep result；
Step 107, Continuous Band, center frequency point and frequency range can be used according to the maximum, adjusts the center frequency of the cell
Point and frequency range.
In the embodiment of the present invention, by measuring the interference noise of cell, the interference noise higher than pre-determined threshold, root are filtered out
Judge whether to need to carry out frequency sweep to cell according to the position and quantity of the Physical Resource Block of interference noise, when the physics of interference noise
The position of resource block and center of housing estate frequency point is overlapping or the Physical Resource Block of the quantity of Physical Resource Block and cell it is total
After ratio exceedes default frequency sweep thresholding, base station carries out frequency sweep, and Continuous Band can be used by obtaining maximum according to frequency sweep result, according to maximum
The center frequency point and frequency range of cell can be adjusted with Continuous Band, it is seen then that the embodiment of the present invention can be swept according to disturbed condition
Frequently, and the center frequency point of cell can be adjusted according to frequency sweep result and maximizes selection available frequency band.
Reference Fig. 2, shows a kind of step flow chart of the method for adjustment embodiment two of cell frequency range of the present invention, specifically
It may include steps of：
Step 201, the interference noise in cell frequency range is measured；The interference noise has corresponding Physical Resource Block.
Interference noise is measured, mainly the noise of designated frequency band is measured, measures the noise signal in designated frequency band
Difference between intensity and bottom noise cancellation signal strength standard value, when difference, which reaches a certain size, to be had an impact to communication, makes an uproar for interference
Sound, the interference noise measured in cell frequency range can include following sub-step：
Sub-step S11, sets measurement period；
Sub-step S12, according to the interference noise in measurement period measurement cell frequency range.
In the embodiment of the present invention, since the uplink and downlink channel of TD-LTE has symmetry, only up channel can be carried out
Periodic measurement interference noise.
Step 202, the interference noise higher than pre-determined threshold is filtered out in the cell frequency range.
In the embodiment of the present invention, whole interference noises in cell frequency range are measured by step 101, can be done from whole
The interference noise filtered out in noise higher than pre-determined threshold is disturbed, is used as whether carrying out the foundation of frequency sweep, specific pre-determined threshold
It can be configured according to actual conditions, the embodiment of the present invention is without limitation.
Step 203, position and the quantity of the Physical Resource Block corresponding to the interference noise higher than pre-determined threshold are determined.
The PRB (Physical Resource Block, Physical Resource Block) of TD-LTE is time domain, frequency domain synthesis is drawn, frequency
Domain is the width of 12 subcarriers, and each subcarrier 15KHz, 20MHz bandwidth, cell is interior to include 1200 subcarriers, effective PRB
For 0-99, totally 100；15MHz bandwidth, cell is interior to include 900 subcarriers, 75 effective PRB.
Step 204, frequency sweep is judged whether to according to the position of the Physical Resource Block and quantity.
In practical applications, the Physical Resource Block of cell frequency range has position and quantity, and center can be determined according to position
Frequency point, the frequency range of cell can be determined according to center frequency point and quantity, and then determines bandwidth, the position according to the Physical Resource Block
Put and judge whether to frequency sweep with quantity and can include following sub-step：
Sub-step S21, judges whether the position of the Physical Resource Block is overlapping with the center frequency point；
Sub-step S22, if the position of Physical Resource Block is overlapping with the center frequency point, is judged as needing in the cell
Frequency sweep is carried out in frequency range；
Sub-step S23, if the position of Physical Resource Block is not overlapping with the center frequency point, calculates the Physical Resource Block
Quantity and cell Physical Resource Block total quantity ratio；
Sub-step S24, judges whether the ratio exceedes default frequency sweep thresholding；
Sub-step S25, if the ratio exceedes default frequency sweep thresholding, is judged as needing to carry out in the cell frequency range
Frequency sweep.
In the embodiment of the present invention, first judge interference noise Physical Resource Block position whether the center frequency point weight with cell
It is folded, if overlapping, it may be said that the frequency range of bright interference noise covers cell frequency range or covered by cell frequency range, exists at this time dry
Disturb, it is necessary to carry out frequency sweep to cell；If the Physical Resource Block and center of housing estate frequency point of interference noise be not overlapping, it may be possible to portion
It is point overlapping, need to calculate the quantity of interference noise and the Physical Resource Block of cell lap and whole cell physical resource at this time
The total ratio of block, when the ratio exceedes default frequency sweep thresholding, then needs to carry out frequency sweep to cell.Default frequency sweep thresholding can
To be set according to actual conditions, when ratio very little, such as when only 1%, illustrate to disturb very little, can without frequency sweep,
Concrete numerical value can be set according to actual conditions, and the embodiment of the present invention is without limitation.
Step 205, when the position according to the Physical Resource Block and quantity determine to carry out frequency sweep, in the cell frequency range
Interior carry out frequency sweep.
In the embodiment of the present invention, progress frequency sweep can include following sub-step in the cell frequency range：
Sub-step S31, obtains frequency sweep frequency range；
Sub-step S32, frequency sweep is carried out according to default sweeping steps and the frequency sweep frequency range in the cell frequency range.
In practical application, stepping can be carried out according to the RF capabilities of RRU (Remote RF Unit, long-distance radio frequency unit)
Formula frequency sweep, for example, using the RF capabilities of RRU be 1800-1900MHz, because there is interference in measurement, start frequency sweep function into
Row frequency sweep, it is 20MHz that can set sweeping steps, and first time frequency sweep frequency range is 1800-1820MHz, and second of frequency sweep frequency range is
1820-1840MHz, third time frequency sweep frequency range are 1840-1860MHz, and the 4th frequency sweep frequency range is 1860-1880MHz, the 5th
Secondary frequency sweep frequency range is 1880-1900MHz, and above numerical value is only to illustrate, and can also be set other according to actual conditions
Numerical value, the embodiment of the present invention is without limitation.
Step 206, Continuous Band can be used by obtaining maximum according to frequency sweep result.
In the embodiment of the present invention, the purpose of frequency sweep is to obtain the frequency range after cell exclusive PCR noise, you can with frequency
Section, in order to make full use of frequency range, ensures the handling capacity of cell, and the available Continuous Band of maximum can be obtained in frequency sweep result,
Following sub-step can specifically be included：
Sub-step S41, obtains the interference noise in frequency sweep frequency range；
Sub-step S42, the interference noise in the frequency sweep frequency range filter out the interference noise higher than pre-determined threshold；
Sub-step S43, Continuous Band can be used by obtaining maximum based on the interference noise higher than pre-determined threshold.
In practical applications, when interference noise is higher than certain thresholding, can just have an impact to communication, can be obtained from frequency sweep
All interference noises in filter out higher than pre-determined threshold, on the influential interference noise of communication, be higher than pre-determined threshold to all
Interference noise analyzed, Continuous Band can be used by obtaining maximum.In order to facilitate understanding, illustrated below：
The radio frequency band of RRU is 1800-1840MHz, i.e., bandwidth is 40MHz, and setting sweeping steps are 20MHz, by two
The step-by-step movement frequency sweep of secondary 20MHz bandwidth, obtains frequency sweep result and there is interference for 1800-1810MHz, 1810-1820MHz is without dry
Disturb, 1820-1825MHz is noiseless, and 1825-1840MHz has interference, and maximum can be 1810-1825MHz with Continuous Band at this time.
It is only to illustrate above, naturally it is also possible to be other examples, the embodiment of the present invention is without limitation.
Step 207, Continuous Band, center frequency point and frequency range can be used according to the maximum, adjusts the center frequency of the cell
Point and frequency range.
In the embodiment of the present invention, maximum is obtained from frequency sweep result can pass through following sub-step with after Continuous Band
Adjust the center frequency point and frequency range of cell：
Sub-step S51, judges whether the maximum can overlapping with the cell frequency range with Continuous Band；The cell frequency range
With corresponding bandwidth of cell；
Sub-step S52, if the maximum can use Continuous Band and the cell frequency range not overlapping, judges described maximum available
Whether the corresponding bandwidth of Continuous Band is more than bandwidth of cell；
Sub-step S53, if the maximum can be wider than bandwidth of cell with the corresponding band of Continuous Band, by the cell
Center frequency point, which is adjusted to the maximum, can use the center frequency point of Continuous Band；
Sub-step S54, can by the maximum if the maximum can be less than bandwidth of cell with the corresponding bandwidth of Continuous Band
With the corresponding bandwidth of Continuous Band compared with multiple preset bandwidth；
Sub-step S55, selected bandwidth is filtered out according to comparative result from the preset bandwidth；
Sub-step S56, the maximum center frequency point that can use Continuous Band is adjusted to by the center frequency point of the cell, and,
The bandwidth of cell is adjusted to selected bandwidth.
The bandwidth of TD-LTE can define 6 kinds of common bandwidth 1.4M, 3M, 5M, 10M with arbitrary disposition in agreement,
15M, 20M.There are center frequency point and bandwidth in base station for cell default configuration, and the frequency of cell can be determined according to center frequency point and bandwidth
Section.
In the embodiment of the present invention, judge that maximum can use Continuous Band whether overlapping with cell frequency range, if not overlapping, sentence
Whether disconnected maximum can be more than the bandwidth of cell with the corresponding bandwidth of Continuous Band, if greater than the bandwidth of cell, then by cell
Center frequency point is adjusted to the maximum center frequency point that can use Continuous Band, and bandwidth is constant；If less than the bandwidth of cell, then by maximum
It can be compared with bandwidth specified in the agreement of multiple TD-LTE with the corresponding bandwidth of Continuous Band, advised from the agreement of TD-LTE
Fixed bandwidth selectes the bandwidth of cell.For clearer explanation, illustrated below：
The radio frequency band of RRU is 1800-1840MHz, and current radio frequency bandwidth is 40MHz, by the step of 20MHz bandwidth twice
Into formula frequency sweep, obtain interference and there is interference for 1800-1810MHz, 1810-1820MHz is noiseless, and 1820-1825MHz is without dry
Disturb, 1825-1840MHz has interference, and maximum can be 1810-1825MHz, bandwidth 15MHz with Continuous Band at this time.
It is maximum at this time the bandwidth 15MHz of Continuous Band to be used to be more than bandwidth of cell if cell default bandwidth is 10MHz,
Then need the center frequency point of cell being adjusted to the maximum center frequency point 1817.5MHz that can use Continuous Band, the bandwidth of cell is protected
Deposit constant.
If the default bandwidth of cell is 20MHz, the bandwidth 15MHz that can use Continuous Band maximum at this time is less than the band of cell
Maximum, then can be used the bandwidth 15MHz of Continuous Band and common bandwidth 1.4M, 3M, 5M, 10M specified in TD-LTE agreements by width,
15M, 20M are compared, and bandwidth of cell can be adjusted to 15M, and the frequency range for adjusting cell is 1810-1825MHz, in cell
Heart frequency point is 1817.5MHz., it is necessary to will between 15M and 20M if maximum can be 18M with the corresponding bandwidth of Continuous Band
Bandwidth of cell is adjusted to 15M.
It should be noted that being merely possible to illustrate above, when implementing the embodiment of the present invention, it can also be used
He mode realizes that the embodiment of the present invention is without limitation.
Step 208, the center frequency point of cell after adjustment and bandwidth are reported into operation maintenance center, in the Operation and Maintenance
The heart is used to re-establish cell according to the center frequency point and bandwidth of cell after the adjustment.
After base station receives the interference noise status information reported, Continuous Band can be used by finding maximum, by this frequency range and currently
The default central frequency point and frequency range of cell are compared, and confirm the scope for establishing frequency range of subsequent cell, and confirm center frequency
Point, OM (Operations and Maintenance, in Operation and Maintenance are reported to by new band information and center frequency point information
The heart), OM re-establishes cell according to new center frequency point and band information.
The embodiment of the present invention, first measures the interference noise of cell, obtains the physics money of the interference noise more than pre-determined threshold
The position of source block and quantity, the position of the Physical Resource Block of the interference noise and center bin of cell is overlapping or Physical Resource Block
When exceeding default frequency sweep thresholding with the total ratio of the quantity of cell Physical Resource Block lap and the Physical Resource Block of cell,
Carry out frequency sweep；Continuous Band can use by obtaining maximum according to frequency sweep result, by it is maximum can with the frequency range of Continuous Band and cell and
Center frequency point is compared, and adjusts the center frequency point and frequency range of cell, and the center frequency point after adjustment and frequency range are reported OM, OM roots
Cell is re-established according to center frequency point and frequency range, using the embodiment of the present invention, can be determined whether to be swept according to disturbed condition
Frequently, and the center frequency point of cell can be adjusted according to frequency sweep result and maximizes selection available frequency band, effectively scheduled resource,
It ensure that the handling capacity and coverage rate of cell, while can be according to the automatic cell of adjustment in real time of change of the interference noise of environment
Frequency range and center frequency point, progress ELIMINATION OF ITS INTERFERENCE, and then lifting cell edge are successfully accessed rate.
In order to make those skilled in the art more fully understand the embodiment of the present invention, this is used as using Fig. 3, Fig. 4, Fig. 5 below
A kind of example of invention further illustrates.
With reference to Fig. 3, base station frequency sweep process chart of the invention is shown, specific flow may comprise steps of:
Interference noise in step 301, base station physical layer upward cycle in measurement full bandwidth；
Step 302, measurement obtain position and the quantity of the Physical Resource Block of the interference noise higher than pre-determined threshold；
Step 303, judge interference noise Physical Resource Block position it is whether overlapping with the center frequency point of cell frequency range；If
It is to perform step 305, performs step 304 if not；
Step 304, judge interference noise Physical Resource Block quantity and cell Physical Resource Block total ratio
Whether default frequency sweep thresholding is more than；If performing step 305, step 303 is performed if not；
Step 305, the RF capabilities progress step-by-step movement frequency sweep for obtaining RRU, sweeping steps are N (MHz)；
Step 306, triggering base station frequency sweep function carry out frequency sweep；
Center frequency point and frequency range arbitration functions are triggered after step 307, base station frequency sweep and will determine that result reports；
Cell is reactivated after step 308, base station adjustment center frequency point and bandwidth.
By above-mentioned example, the present invention first measures the interference noise of cell, is made an uproar according to the interference higher than pre-determined threshold
The position of sound and quantity determine whether progress frequency sweep, finally the frequency sweep that step-length is N are carried out according to the radio frequency band of RRU, by frequency sweep
As a result report, adjust the center frequency point and frequency range of base station.
With reference to shown in Fig. 4, show the frequency sweep function internal processes figure of the present invention, be related to OM, RRU, HL (High
Layer, high-rise), PL (Physical Layer, physical layer), specific flow is as follows:
10th, base station OM cycle Ts triggering frequency sweep, issues frequency sweep order；
20th, judge whether cell is established, if so then execute 30, if otherwise performing 240；
30th, send frequency sweep to HL and start request message；
40th, the frequency sweep for receiving HL feedbacks begins to respond to message；
50th, judge that cell whether there is user；If performing 60,80 are performed if not；
60th, notify that there are user in HL cells；
70th, HL is completed to redirect or is discharged existing whole users in cell；
80th, judge whether HL handles success, if so then execute 90, otherwise perform 240；
90th, frequency point configuration request message is sent to RRU；
100th, the frequency point configuration response message of RRU feedbacks is received；
110th, judge whether RRU handles success, if so then execute 120, perform 240 if not；
120th, frequency sweep request message is sent to PL；
130th, the frequency sweep result reporting message of PL feedbacks is received；
140th, judge whether PL handles success, if so then execute 150, otherwise perform 240；
150th, judge whether frequency sweep terminates, if so then execute 160, otherwise perform 90；
160th, frequency sweep ending request message is sent to RRU；
170th, the frequency sweep for receiving RRU feedbacks terminates response message；
180th, judge whether RRU handles success, if so then execute 190, perform 230 if not；
190th, frequency sweep ending request message is sent to RRU；
200th, the frequency sweep for receiving RRU feedbacks terminates response message；
210th, judge whether HL handles success, if so then execute 220, if otherwise performing 230；
220th, frequency sweep Success Flag is put；
230th, cell moves back clothes；
240th, frequency sweep failure flags are put；
250th, frequency sweep result is reported to base station according to marker sweep.
After receiving frequency sweep instruction, the OM notice HL of base station, intra-cell users are all discharged or are redirected to other
Cell, then notify RRU close downlink send, only receive uplink signal, according to whole frequency bands in the radio frequency band of RRU according to
Step-length carries out interference noise measurement, after measurement, by the interference noise information reporting in RRU frequency ranges.
With reference to Fig. 5, the frequency point and bandwidth for showing the present invention judge report flow figure, specifically include following steps：
Step 401, base station default configuration center frequency point A, bandwidth Wi, Wi belong to [W1, W2, W3 ..., Wn], Wn<…<W3
<W2<W1；
Step 402, acquisition RRU RF capabilities bandwidth are X~Y (MHz)；
Step 403, the interference noise by frequency sweep gain-of-function RF capabilities bandwidth between X~Y (MHz)；
Step 404, by interference noise and predetermined threshold value contrast obtain maximum continuous bandwidth E~F (MHz), bandwidth D=
F-E(MHz)；
Whether step 405, maximum can use continuous bandwidth E~F (MHz) and default bandwidth Wi multilevel iudges overlapping, if overlapping
Step 406 is performed, otherwise performs step 407；
Step 406, need not adjust base station frequency point and bandwidth；
Whether step 407, D and Wi multilevel iudges D are more than Wi, if performing step 408, perform step 409 if not；
Step 408, adjustment base station center frequency point are (F+E)/2, bandwidth Wi；
Step 409, judging result Wi-1<D<Wi；
Step 410, adjustment base station center frequency point are (F+E)/2, bandwidth Wi-1；
Step 411, report frequency point information and bandwidth information.
After base station receives the status information of the interference noise reported, Continuous Band can be used by finding maximum, can the company of using by maximum
The default central frequency point and frequency range of continuous frequency range and current area are compared, and confirm the frequency range of establishing of subsequent cell, and confirm
Center frequency point, is reported to OM, OM is according to new center frequency point and band information, weight by new band information and center frequency point information
Newly establish cell.
It should be noted that for embodiment of the method, in order to be briefly described, therefore it is all expressed as to a series of action group
Close, but those skilled in the art should know, the embodiment of the present invention and from the limitation of described sequence of movement, because according to
According to the embodiment of the present invention, some steps can use other orders or be carried out at the same time.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, and the involved action not necessarily present invention is implemented
Necessary to example.
With reference to Fig. 6, show a kind of structure diagram of cell frequency range adjusting apparatus embodiment of the present invention, can specifically wrap
Include following module：
Interference noise measurement module 501, for measuring the interference noise in cell frequency range；The interference noise, which has, to be corresponded to
Physical Resource Block；
Interference noise screening module 502, for filtering out the interference noise higher than pre-determined threshold in the cell frequency range；
Physical Resource Block position and quantity determining module 503, for determining the interference noise institute for being higher than pre-determined threshold
The position of corresponding Physical Resource Block and quantity；
Frequency sweep judgment module 504, frequency sweep is judged whether to for the position according to the Physical Resource Block and quantity；
Scan module 505, for when the position according to the Physical Resource Block and quantity determine to carry out frequency sweep, described
Frequency sweep is carried out in cell frequency range；
Maximum can use Continuous Band acquisition module 506, and Continuous Band can be used for obtaining maximum according to frequency sweep result；
Module 507 is adjusted, for Continuous Band, center frequency point and frequency range can be used according to the maximum, adjusts the cell
Center frequency point and frequency range.
Reference Fig. 6, shows a kind of structure diagram of another embodiment of cell frequency range adjusting apparatus of the present invention, in this hair
In bright another embodiment, the device can also include：
Reporting module 508, for the center frequency point of cell after adjustment and bandwidth to be reported to operation maintenance center, the behaviour
Make maintenance centre to be used to re-establish cell according to the center frequency point and bandwidth of cell after the adjustment.
In one preferred embodiment of the invention, the frequency sweep judgment module 504 includes：
The overlapping judging submodule of center frequency point, for judge the Physical Resource Block position whether with the center frequency point
It is overlapping；
First frequency sweep determination sub-module, if the position for Physical Resource Block is overlapping with the center frequency point, is judged as
Need to carry out frequency sweep in the cell frequency range；
Ratio calculation submodule, if the position for Physical Resource Block is not overlapping with the center frequency point, described in calculating
The ratio of the quantity of Physical Resource Block and the total quantity of the Physical Resource Block of cell；
Ratio in judgement submodule, for judging whether the ratio exceedes default frequency sweep thresholding；
Second frequency sweep determination sub-module, if exceeding default frequency sweep thresholding for the ratio, is judged as needing described
Frequency sweep is carried out in cell frequency range.
In one preferred embodiment of the invention, the scan module 505 includes：
Frequency sweep frequency range acquisition submodule, for obtaining frequency sweep frequency range；
Frequency sweep submodule, for carrying out frequency sweep in the cell frequency range according to default sweeping steps and the frequency sweep frequency range.
In one preferred embodiment of the invention, the maximum can be included with Continuous Band acquisition module 506：
Interference noise acquisition submodule, for obtaining the interference noise in frequency sweep frequency range；
Interference noise screens submodule, is filtered out for the interference noise in the frequency sweep frequency range higher than pre-determined threshold
Interference noise；
Maximum can use Continuous Band acquisition submodule, for obtaining maximum based on the interference noise higher than pre-determined threshold
Continuous Band can be used.
In one preferred embodiment of the invention, the adjustment module 507 includes：
The overlapping judging submodule of frequency range, for judge the maximum can with Continuous Band whether with the cell frequency range weight
It is folded；The cell frequency range has corresponding bandwidth of cell；
Amount of bandwidth judging submodule, if for the maximum Continuous Band and the cell frequency range can be used not overlapping, sentences
Whether the maximum of breaking can be more than bandwidth of cell with the corresponding bandwidth of Continuous Band；
Center frequency point adjusts submodule, if for the maximum bandwidth of cell can be wider than with the corresponding band of Continuous Band,
The center frequency point of the cell then is adjusted to the maximum can use the center frequency point of Continuous Band；
Bandwidth comparison sub-module, will if can be less than bandwidth of cell with the corresponding bandwidth of Continuous Band for the maximum
The maximum can be with the corresponding bandwidth of Continuous Band compared with multiple preset bandwidth；
Bandwidth selectes submodule, for filtering out selected bandwidth from the preset bandwidth according to comparative result；
Bandwidth and center frequency point adjustment submodule, for the center frequency point of the cell to be adjusted to maximum available continuous frequency
The center frequency point of section, and, the bandwidth of cell is adjusted to selected bandwidth.
In one preferred embodiment of the invention, the interference noise measurement module 501 includes：
Cycle sets submodule, for setting measurement period；
Submodule is measured, for according to the interference noise in measurement period measurement cell frequency range.
For device embodiment, since it is substantially similar to embodiment of the method, so description is fairly simple, it is related
Part illustrates referring to the part of embodiment of the method.
Each embodiment in this specification is described by the way of progressive, what each embodiment stressed be with
The difference of other embodiment, between each embodiment identical similar part mutually referring to.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can be provided as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can use complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can use one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be with reference to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that it can realize flowchart and/or the block diagram by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in flow and/or square frame combination.These can be provided
Computer program instructions are set to all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to produce a machine so that is held by the processor of computer or other programmable data processing terminal equipments
Capable instruction is produced and is used for realization in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames
The device for the function of specifying.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing terminal equipments
In the computer-readable memory to work in a specific way so that the instruction being stored in the computer-readable memory produces bag
The manufacture of command device is included, which realizes in one flow of flow chart or multiple flows and/or one side of block diagram
The function of being specified in frame or multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing terminal equipments so that
Series of operation steps is performed on computer or other programmable terminal equipments to produce computer implemented processing, so that
The instruction performed on computer or other programmable terminal equipments is provided and is used for realization in one flow of flow chart or multiple flows
And/or specified in one square frame of block diagram or multiple square frames function the step of.
Although having been described for the preferred embodiment of the embodiment of the present invention, those skilled in the art once know base
This creative concept, then can make these embodiments other change and modification.So appended claims are intended to be construed to
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements are not only wrapped
Those key elements are included, but also including other elements that are not explicitly listed, or further include as this process, method, article
Or the key element that terminal device is intrinsic.In the absence of more restrictions, wanted by what sentence "including a ..." limited
Element, it is not excluded that also there are other identical element in the process including the key element, method, article or terminal device.
Above to a kind of method of adjustment and device of cell frequency range provided by the present invention, it is described in detail, herein
In apply specific case the principle of the present invention and embodiment be set forth, the explanation of above example is only intended to side
Assistant solves the method and its core concept of the present invention；Meanwhile for those of ordinary skill in the art, the think of according to the present invention
Think, in specific embodiments and applications there will be changes, in conclusion this specification content should not be construed as pair
The limitation of the present invention.
Claims (14)
1. a kind of method of adjustment of cell frequency range, it is characterised in that the cell includes frequency range and center frequency point, the method bag
Include：
Measure the interference noise in cell frequency range；The interference noise has corresponding Physical Resource Block；
The interference noise higher than pre-determined threshold is filtered out in the cell frequency range；
Determine position and the quantity of the Physical Resource Block corresponding to the interference noise higher than pre-determined threshold；
Frequency sweep is judged whether to according to the position of the Physical Resource Block and quantity；
When the position according to the Physical Resource Block and quantity determine to carry out frequency sweep, frequency sweep is carried out in the cell frequency range；
Continuous Band can be used by obtaining maximum according to frequency sweep result；
Continuous Band, center frequency point and frequency range can be used according to the maximum, adjusts the center frequency point and frequency range of the cell.
2. according to the method described in claim 1, it is characterized in that, described sentence according to the position of the Physical Resource Block and quantity
Disconnected the step of whether carrying out frequency sweep, includes：
Judge whether the position of the Physical Resource Block is overlapping with the center frequency point；
If the position of Physical Resource Block is overlapping with the center frequency point, it is judged as needing to be swept in the cell frequency range
Frequently；
If the position of Physical Resource Block is not overlapping with the center frequency point, the quantity and cell of the Physical Resource Block are calculated
The ratio of the total quantity of Physical Resource Block；
Judge whether the ratio exceedes default frequency sweep thresholding；
If the ratio exceedes default frequency sweep thresholding, it is judged as needing to carry out frequency sweep in the cell frequency range.
3. according to the method described in claim 2, it is characterized in that, the frequency sweep that carried out in the cell frequency range includes：
Obtain frequency sweep frequency range；
According to default sweeping steps and the frequency sweep frequency range frequency sweep is carried out in the cell frequency range.
4. according to the method described in claim 3, it is characterized in that, described can use Continuous Band according to frequency sweep result acquisition maximum
The step of include：
Obtain the interference noise in frequency sweep frequency range；
Interference noise in the frequency sweep frequency range filters out the interference noise higher than pre-determined threshold；
Continuous Band can be used by obtaining maximum based on the interference noise higher than pre-determined threshold.
5. according to the method described in claim 4, it is characterized in that, described can use Continuous Band, center frequency according to the maximum
The step of point and frequency range, the center frequency point and frequency range that adjust the cell, includes：
Judge whether the maximum can overlapping with the cell frequency range with Continuous Band；The cell frequency range has corresponding cell
Bandwidth；
If the maximum can use Continuous Band and the cell frequency range not overlapping, judge that the maximum can be corresponding with Continuous Band
Whether bandwidth is more than bandwidth of cell；
If the maximum can be wider than bandwidth of cell with the corresponding band of Continuous Band, the center frequency point of the cell is adjusted to
The maximum can use the center frequency point of Continuous Band；
If the maximum can be less than bandwidth of cell with the corresponding bandwidth of Continuous Band, can be corresponding with Continuous Band by the maximum
Bandwidth compared with multiple preset bandwidth；
According to comparative result selected bandwidth is filtered out from the preset bandwidth；
The center frequency point of the cell is adjusted to the maximum center frequency point that can use Continuous Band, and, by the bandwidth of cell
It is adjusted to selected bandwidth.
6. according to the method described in claim 5, it is characterized in that, the method further includes：
The center frequency point of cell after adjustment and bandwidth are reported into operation maintenance center, the operation maintenance center is used for according to institute
State the center frequency point of cell and bandwidth after adjusting and re-establish cell.
7. according to the method described in claim 1, it is characterized in that, it is described measurement cell frequency range in interference noise the step of wrap
Include：
Measurement period is set；
According to the interference noise in measurement period measurement cell frequency range.
8. a kind of adjusting apparatus of cell frequency range, it is characterised in that the cell includes frequency range and center frequency point, described device bag
Include：
Interference noise measurement module, for measuring the interference noise in cell frequency range；The interference noise has corresponding physics
Resource block；
Interference noise screening module, for filtering out the interference noise higher than pre-determined threshold in the cell frequency range；
Physical Resource Block position and quantity determining module, for determining the thing corresponding to the interference noise higher than pre-determined threshold
Manage position and the quantity of resource block；
Frequency sweep judgment module, frequency sweep is judged whether to for the position according to the Physical Resource Block and quantity；
Scan module, for when the position according to the Physical Resource Block and quantity determine to carry out frequency sweep, in cell frequency
Frequency sweep is carried out in section；
Maximum can use Continuous Band acquisition module, and Continuous Band can be used for obtaining maximum according to frequency sweep result；
Module is adjusted, for Continuous Band, center frequency point and frequency range can be used according to the maximum, adjusts the center frequency of the cell
Point and frequency range.
9. device according to claim 8, it is characterised in that the frequency sweep judgment module includes：
The overlapping judging submodule of center frequency point, for judge the Physical Resource Block position whether with the center frequency point weight
It is folded；
First frequency sweep determination sub-module, if the position for Physical Resource Block is overlapping with the center frequency point, is judged as needing
Frequency sweep is carried out in the cell frequency range；
Ratio calculation submodule, if the position for Physical Resource Block is not overlapping with the center frequency point, calculates the physics
The ratio of the quantity of resource block and the total quantity of the Physical Resource Block of cell；
Ratio in judgement submodule, for judging whether the ratio exceedes default frequency sweep thresholding；
Second frequency sweep determination sub-module, if the ratio exceedes default frequency sweep thresholding, is judged as needing in the cell frequency range
Interior carry out frequency sweep.
10. device according to claim 9, it is characterised in that the scan module includes：
Frequency sweep frequency range acquisition submodule, for obtaining frequency sweep frequency range；
Frequency sweep submodule, for carrying out frequency sweep in the cell frequency range according to default sweeping steps and the frequency sweep frequency range.
11. device according to claim 10, it is characterised in that the maximum can be included with Continuous Band acquisition module：
Interference noise acquisition submodule, for obtaining the interference noise in frequency sweep frequency range；
Interference noise screens submodule, and the interference higher than pre-determined threshold is filtered out for the interference noise in the frequency sweep frequency range
Noise；
Maximum can use Continuous Band acquisition submodule, maximum available for being obtained based on the interference noise higher than pre-determined threshold
Continuous Band.
12. according to the devices described in claim 11, it is characterised in that the adjustment module includes：
The overlapping judging submodule of frequency range, for judging whether the maximum can overlapping with the cell frequency range with Continuous Band；Institute
Stating cell frequency range has corresponding bandwidth of cell；
Amount of bandwidth judging submodule, if for the maximum Continuous Band and the cell frequency range can be used not overlapping, judges institute
State whether maximum can be more than bandwidth of cell with the corresponding bandwidth of Continuous Band；
Center frequency point adjusts submodule, will if can be wider than bandwidth of cell with the corresponding band of Continuous Band for the maximum
The center frequency point of the cell, which is adjusted to the maximum, can use the center frequency point of Continuous Band；
Bandwidth comparison sub-module, if bandwidth of cell can be less than with the corresponding bandwidth of Continuous Band for the maximum, by described in
Maximum can be with the corresponding bandwidth of Continuous Band compared with multiple preset bandwidth；
Bandwidth selectes submodule, for filtering out selected bandwidth from the preset bandwidth according to comparative result；
Bandwidth and center frequency point adjustment submodule, Continuous Band can be used for the center frequency point of the cell to be adjusted to maximum
Center frequency point, and, the bandwidth of cell is adjusted to selected bandwidth.
13. device according to claim 12, it is characterised in that described device further includes：
Reporting module, for the center frequency point of cell after adjustment and bandwidth to be reported to operation maintenance center, the Operation and Maintenance
Center is used to re-establish cell according to the center frequency point and bandwidth of cell after the adjustment.
14. device according to claim 8, it is characterised in that the interference noise measurement module includes：
Cycle sets submodule, for setting measurement period；
Submodule is measured, for according to the interference noise in measurement period measurement cell frequency range.
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