CN105517166B - Communication frequency selection method and device - Google Patents
Communication frequency selection method and device Download PDFInfo
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- CN105517166B CN105517166B CN201510836675.4A CN201510836675A CN105517166B CN 105517166 B CN105517166 B CN 105517166B CN 201510836675 A CN201510836675 A CN 201510836675A CN 105517166 B CN105517166 B CN 105517166B
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- 238000004891 communication Methods 0.000 title claims abstract description 42
- 238000010187 selection method Methods 0.000 title claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 148
- 238000000034 method Methods 0.000 claims abstract description 27
- 238000004088 simulation Methods 0.000 claims description 17
- 238000004364 calculation method Methods 0.000 claims description 15
- 238000012937 correction Methods 0.000 claims description 7
- 238000004422 calculation algorithm Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 18
- 238000012546 transfer Methods 0.000 description 13
- 238000007689 inspection Methods 0.000 description 11
- 238000005259 measurement Methods 0.000 description 10
- 238000011144 upstream manufacturing Methods 0.000 description 10
- 238000001228 spectrum Methods 0.000 description 5
- 238000010295 mobile communication Methods 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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Classifications
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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
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0037—Inter-user or inter-terminal allocation
-
- 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
- H04W72/0446—Resources in time domain, e.g. slots or frames
-
- 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
-
- 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
-
- 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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- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of communication frequency selection method and devices.Wherein, it this method comprises: carrying out Interference Detection respectively to multiple frequency ranges predetermined in unauthorized frequency range, obtains and the one-to-one multiple current interference values of multiple frequency ranges；And the uplink band and band downlink that are used to be communicated using frequency division duplex mode are selected from multiple frequency ranges according to multiple current interference values.The present invention solves the technical problem that tdd systems message transmission rate is low in unauthorized frequency range.
Description
Technical field
The present invention relates to the communications fields, in particular to a kind of communication frequency selection method and device.
Background technique
Existing wireless communication includes in authorization (licensed) frequency range and in unauthorized (Unlicensed) frequency range
The wireless communication of progress, the wireless communication carried out in licensed frequency range refer to that operator passes through deployment wireless access network equipment
(such as base station) and equipment of the core network (such as home location register (Home Location Register, referred to as HLR)) etc.,
The system of communication service is provided for user equipment (such as mobile phone).Such as present mobile communication carrier (such as China Mobile) provides
Communication, the occupied frequency range of this kind of wireless communication is used alone by the mobile communication carrier (hereinafter referred to as operator),
And operator for the resource of frequency range be managed and optimize (such as control work the access device of the frequency range density, send out
Send power, antenna tilt etc.), to guarantee the reliability and validity of the radio communication service provided by the frequency range.
Current mobile communication system has evolved to forth generation mobile communication system, is International Organization for standardization 3GPP system
Fixed long term evolution (Long Term Evolution/Long Term Evolution-Advanced, LTE/LTE-A).LTE
System is there are two types of duplex mode, a kind of time division duplex (Time Division Duplexing, referred to as TDD), uplink and
Downlink all uses identical frequency, is separated uplink downlink from the time by selection switch.Another kind is that frequency division is double
Work mode (Frequency Division Duplexing, referred to as FDD), uplink and downlink link use different frequencies,
By duplexer by uplink downlink by frequency isolation, avoid generating interference.
And the wireless communication such as Wifi carried out in Unlicensed frequency range, it is that International Power tissue IEEE is developed
One general designation of 802.11 series techniques, such as 802.11a/g/n/ac.WiFi is mainly used in local radio communication, usual feelings
It covers relatively small under condition, is the wireless communication means of a kind of simple and opposite low price.The version work of WiFi originally exists
In the frequency of 2.4GHz, but since the available bandwidth in 2.4GHz frequency range is smaller, and the wireless hair in 2.4GHz frequency range that works
Jet device is again more, results in the WiFi performance decline to work on 2.4GHz.WiFi has excavated new on subsequent editions
Communication frequency 5GHz (note: 5GHz described herein does not refer to single frequency point, and refers to each frequency range near 5GHz, it is possible to understand that
To be 5GHz frequency range described herein from 4.9GHz~5.9GHz).In unlicensed band, due to there is no the carry out network planning,
Anyone can dispose WIFI system, when similar two WIFI systems similar frequency bands transmit wireless signal when, will lead
Cause interferes with each other and can not normal communication.Therefore WIFI system can select (Carrier Selection) to keep away by carrier wave
Exempt from mutual interference.In addition, since the band segment in 5GHz is used for radar system, in order to avoid working in 5GHz frequency range
Wireless telecom equipment radar system is interfered, requirement of the various countries to these equipment is in addition to conventional projects such as power, frequency spectrums
In addition, the requirement to dynamic frequency selection (Dynamic Frequency Selection, DFS) characteristic is also especially increased.
As previously described, because unlicensed band needs to select by carrier wave or the method for dynamic frequency selection is avoided from being
Interference between system or external system, the system for being usually operated at unlicensed band are all to use tdd systems, such as WIFI,
Bluetooth.
However, the capacity of tdd systems is limited in unauthorized frequency range, message transmission rate is low.
For above-mentioned problem, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of communication frequency selection method and devices, at least to solve in unauthorized frequency range
The low technical problem of tdd systems message transmission rate.
According to an aspect of an embodiment of the present invention, a kind of communication frequency selection method is provided, comprising: to unauthorized
Multiple frequency ranges predetermined carry out Interference Detection respectively in frequency range, obtain one-to-one multiple current with the multiple frequency range
Interference value；And it is selected from the multiple frequency range according to the multiple current interference value for being carried out using frequency division duplex mode
The uplink band and band downlink of communication.
Further, Interference Detection is being carried out respectively to multiple frequency ranges predetermined in unauthorized frequency range, obtain with
After the one-to-one multiple current interference values of the multiple frequency range, the method also includes: inquiry is worked as with the multiple respectively
Preceding interference value multiple corrected parameters correspondingly；Using the multiple corrected parameter respectively to the multiple current interference value into
Row amendment, wherein each corrected parameter is for repairing corresponding current interference value in the multiple corrected parameter
Just；It is selected from the multiple frequency range according to the multiple current interference value for using frequency division duplex mode to be communicated
Line frequency section and band downlink include: to be selected from the multiple frequency range according to revised multiple current interference values for using frequency
The uplink band and band downlink for dividing duplex mode to be communicated.
Further, it inquires to obtain with the multiple current interference value one by one being utilized respectively the multiple current interference value
Before corresponding multiple corrected parameters, the method also includes: by carrying out simulation calculation to the multiple frequency range, obtain
Multiple theoretical interference values, wherein each frequency range correspond to multiple theory interference values in the multiple frequency range；By to described more
A frequency range carries out Interference Detection, obtains the multiple frequency range and measures interference value correspondingly；It is calculated according to pre-set amendment
Method is calculated according to the corresponding multiple theoretical interference values of each frequency range interference value that measures corresponding with each described frequency range
The corrected parameter of each frequency range.
Further, the multiple current interference value is utilized respectively to inquire to obtain and the multiple current one a pair of interference value
The multiple corrected parameters answered include: the disturbed condition of determining the multiple frequency range respectively；Inquiry under the disturbed condition with institute
State multiple current interference values multiple corrected parameters correspondingly.
Further, the multiple frequency range is symmetrical multiple uplink and downlink frequency ranges predetermined in unauthorized frequency range,
Interference Detection is carried out to multiple frequency ranges predetermined in unauthorized frequency range respectively, obtains corresponding with the multiple frequency range
Multiple current interference values include: to multiple uplink bands predetermined in unauthorized frequency range or it is predetermined it is multiple under
Line frequency section carries out Interference Detection respectively, obtains multiple current interference values；According to the multiple current interference value from the multiple frequency
Uplink band and band downlink of the selection for being communicated using frequency division duplex mode include: that selection is described pre-defined in section
Multiple uplink bands in the current the smallest uplink band of interference value and its symmetrical band downlink or described predetermined
The smallest band downlink of current interference value and its symmetrical uplink band in multiple band downlinks.
Further, the multiple frequency range is symmetrical multiple uplink and downlink frequency ranges predetermined in unauthorized frequency range,
Interference Detection is carried out to multiple frequency ranges predetermined in unauthorized frequency range respectively, obtains corresponding with the multiple frequency range
Multiple current interference values include: to multiple uplink bands predetermined in unauthorized frequency range and it is predetermined it is multiple under
Line frequency section carries out Interference Detection respectively, obtains multiple current interference values；According to the multiple current interference value from the multiple frequency
Uplink band and band downlink of the selection for being communicated using frequency division duplex mode include: that selection is described pre-defined in section
The smallest symmetrical uplink and downlink frequency range of average interference value in symmetrical multiple uplink and downlink frequency ranges, wherein the average interference value
It is corresponding with its symmetrical band downlink current dry for the corresponding current interference value of uplink band in the multiple uplink and downlink frequency range
Disturb the average value of value.
Further, the multiple frequency range be in unauthorized frequency range asymmetrical multiple uplink bands predetermined and
Multiple band downlinks carry out Interference Detection to multiple frequency ranges predetermined in unauthorized frequency range respectively, obtain with it is described more
The one-to-one multiple current interference values of a frequency range include: to multiple uplink bands predetermined described in unauthorized frequency range
Interference Detection is carried out respectively with multiple band downlinks predetermined, obtains multiple current interference values；According to the multiple
Current interference value selects uplink band and downlink frequency for being communicated using frequency division duplex mode from the multiple frequency range
Section includes: the smallest uplink band of corresponding current interference value and described pre- in selection multiple uplink bands predetermined
The corresponding current the smallest band downlink of interference value in the multiple band downlinks first defined.
Further, the multiple frequency range is asymmetrical frequency range, to multiple frequencies predetermined in unauthorized frequency range
Section carries out Interference Detection respectively, obtains including: according to setting in advance with the one-to-one multiple current interference values of the multiple frequency range
The Duplex Spacing frequency set determines all uplink and downlink frequency range combinations from multiple frequency ranges；To all uplink and downlink groups of frequency bands
All uplink bands carry out uplink interference detection in conjunction, obtain and the one-to-one multiple current uplinks of all uplink bands
Interference value；Downlink Interference Detection is carried out to all band downlinks in all uplink and downlink frequency range combinations；It obtains owning with described
Band downlink multiple current downlink interference values correspondingly；It is selected from the multiple frequency range according to the multiple current interference value
The uplink band and band downlink selected for being communicated using frequency division duplex mode include: from the uplink and downlink frequency range determined
The smallest uplink and downlink frequency range combination of combination selection average interference value, wherein the average interference value be it is described determine it is upper,
The corresponding current uplink interference value current downlink interference value corresponding with band downlink of uplink band puts down in band downlink combination
Mean value.
Further, the multiple frequency range is asymmetrical frequency range, to multiple frequencies predetermined in unauthorized frequency range
Section carries out Interference Detection respectively, obtains including: according to setting in advance with the one-to-one multiple current interference values of the multiple frequency range
The Duplex Spacing frequency set determines all uplink and downlink frequency range combinations from multiple frequency ranges；To all uplink and downlink groups of frequency bands
All uplink bands carry out uplink interference detection in conjunction, obtain and the one-to-one multiple current uplinks of all uplink bands
Interference value；Downlink Interference Detection is carried out to all band downlinks in all uplink and downlink frequency range combinations；It obtains owning with described
Band downlink multiple current downlink interference values correspondingly；It is selected from the multiple frequency range according to the multiple current interference value
The uplink band and band downlink selected for being communicated using frequency division duplex mode include: from the uplink and downlink frequency range determined
The corresponding current uplink interference of combination selection uplink band is worth the smallest uplink and downlink frequency range combination, alternatively, from determine it is upper,
The smallest uplink and downlink frequency range combination of the corresponding current downlink interference value of band downlink combination selection band downlink.
According to another aspect of an embodiment of the present invention, a kind of communication frequency selection device is additionally provided, comprising: the first detection
Unit obtains and the multiple frequency for carrying out Interference Detection respectively to multiple frequency ranges predetermined in unauthorized frequency range
The one-to-one multiple current interference values of section；And selecting unit, for according to the multiple current interference value from the multiple
Uplink band and band downlink of the selection for being communicated using frequency division duplex mode in frequency range.
Further, described device further include: query unit, for predetermined multiple in unauthorized frequency range
Frequency range carries out Interference Detection respectively, obtains inquiring respectively with after the one-to-one multiple current interference values of the multiple frequency range
With the multiple current interference value multiple corrected parameters correspondingly；Amending unit, for utilizing the multiple corrected parameter
The multiple current interference value is modified respectively, wherein in the multiple corrected parameter each corrected parameter for pair
Corresponding current interference value is modified；Wherein, the selecting unit is also used to according to revised multiple current interference
Value selects the uplink band and band downlink for being communicated using frequency division duplex mode from the multiple frequency range.
Further, described device further include: simulation unit, for being utilized respectively the multiple current interference value inquiry
Obtain with before the multiple current interference value correspondingly multiple corrected parameters, by being emulated to the multiple frequency range
Simulation calculates, obtained multiple theoretical interference values, wherein each frequency range corresponds to multiple theoretical interference in the multiple frequency range
Value；Second detection unit, for it is one-to-one to obtain the multiple frequency range by carrying out Interference Detection to the multiple frequency range
Measure interference value；Computing unit, for corresponding multiple theoretical dry according to each frequency range according to pre-set correction algorithm
Disturb the value corrected parameter for measuring interference value and each frequency range being calculated corresponding with each described frequency range.
Further, the query unit includes: the first determining module, for determining the interference of the multiple frequency range respectively
Situation；Enquiry module is used to inquire under the disturbed condition and the multiple amendments correspondingly of the multiple current interference value
Parameter.
Further, the multiple frequency range is symmetrical multiple uplink and downlink frequency ranges predetermined in unauthorized frequency range,
The first detection unit is also used to multiple uplink bands predetermined in unauthorized frequency range or predetermined multiple
Band downlink carries out Interference Detection respectively, obtains multiple current interference values；It is described fixed in advance that the selecting unit is also used to select
The current the smallest uplink band of interference value and its symmetrical band downlink or described pre-defined in multiple uplink bands of justice
Multiple band downlinks in the current the smallest band downlink of interference value and its symmetrical uplink band.
Further, the multiple frequency range is symmetrical multiple uplink and downlink frequency ranges predetermined in unauthorized frequency range,
The first detection unit is also used to multiple uplink bands predetermined in unauthorized frequency range and predetermined multiple
Band downlink carries out Interference Detection respectively, obtains multiple current interference values；It is described fixed in advance that the selecting unit is also used to select
The smallest symmetrical uplink and downlink frequency range of average interference value in adopted symmetrical multiple uplink and downlink frequency ranges, wherein the average interference
Value is that the corresponding current interference value of uplink band is corresponding with its symmetrical band downlink current in the multiple uplink and downlink frequency range
The average value of interference value.
Further, the multiple frequency range be in unauthorized frequency range asymmetrical multiple uplink bands predetermined and
Multiple band downlinks, the first detection unit are also used to multiple uplink bands predetermined described in unauthorized frequency range
Interference Detection is carried out respectively with multiple band downlinks predetermined, obtains multiple current interference values；The selecting unit
It is also used to select in multiple uplink bands predetermined the smallest uplink band of corresponding current interference value and described pre-
The corresponding current the smallest band downlink of interference value in the multiple band downlinks first defined.
Further, the multiple frequency range is asymmetrical frequency range, and the first detection unit includes: the second determining mould
Block, for determining that all uplink and downlink frequency ranges are combined from multiple frequency ranges according to pre-set Duplex Spacing frequency；First inspection
Survey module, for carrying out uplink interference detections to all uplink bands in all uplink and downlink frequency ranges combination, obtain with it is described
The one-to-one multiple current uplink interference values of all uplink bands；Second detection module, for all upper and lower line frequencies
All band downlinks carry out downlink Interference Detection in Duan Zuhe, obtain one-to-one multiple current with all band downlinks
Downlink interference value；The selecting unit be also used to from the uplink and downlink frequency range combination selection average interference value determined it is the smallest it is upper,
Band downlink combination, wherein the average interference value is that uplink band is corresponding in the uplink and downlink frequency range combination determined
The average value of current uplink interference value current downlink interference value corresponding with band downlink.
Further, the multiple frequency range is asymmetrical frequency range, and the first detection unit includes: that third determines mould
Block, for determining that all uplink and downlink frequency ranges are combined from multiple frequency ranges according to pre-set Duplex Spacing frequency；Third inspection
Survey module, for carrying out uplink interference detections to all uplink bands in all uplink and downlink frequency ranges combination, obtain with it is described
The one-to-one multiple current uplink interference values of all uplink bands；4th detection module, for all upper and lower line frequencies
All band downlinks carry out downlink Interference Detection in Duan Zuhe, obtain one-to-one multiple current with all band downlinks
Downlink interference value；The selecting unit is also used to corresponding current from the uplink and downlink frequency range combination selection uplink band determined
Uplink interference is worth the smallest uplink and downlink frequency range combination, alternatively, from the uplink and downlink frequency range combination selection band downlink pair determined
The smallest uplink and downlink frequency range combination of the current downlink interference value answered.
According to the embodiment of the present application, by carrying out interference inspection respectively to multiple frequency ranges predetermined in unauthorized frequency range
Survey, obtain with the one-to-one multiple current interference values of multiple frequency ranges, selected from multiple frequency ranges according to multiple current interference values
Uplink band and band downlink for being communicated using frequency division duplex mode, thus using the current interference value detected from
The uplink and downlink frequency range that unauthorized Frequency Band Selection is interfered weaker, is communicated using frequency division duplex mode, and in identical cost
Under, the message transmission rate peak value of time division duplex is lower than frequency division duplex mode, and then when solving in unauthorized frequency range
The low technical problem of division duplex system message transmission rate.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of communication frequency selection method according to an embodiment of the present invention；
Fig. 2 is the uplink interference schematic diagram that interference source according to an embodiment of the present invention is terminal；
Fig. 3 is that the downlink that interference source according to an embodiment of the present invention is base station interferes schematic diagram；
Fig. 4 is the schematic diagram of communication frequency selection device according to an embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
According to embodiments of the present invention, a kind of embodiment of the method for communication frequency selection method is provided, it should be noted that
Step shown in the flowchart of the accompanying drawings can execute in a computer system such as a set of computer executable instructions.It is preferred that
Ground, the communication frequency selection method in the embodiment of the present application can be access point apparatus such as base station and executed.Although in flow chart
In show logical order, but in some cases, shown or described step can be executed with the sequence for being different from herein
Suddenly.
Fig. 1 is the flow chart of communication frequency selection method according to an embodiment of the present invention, as shown in Figure 1, this method includes
Following steps:
Step S102 carries out Interference Detection to multiple frequency ranges predetermined in unauthorized frequency range respectively, obtains and more
The one-to-one multiple current interference values of a frequency range.
Step S104 is selected according to multiple current interference values from multiple frequency ranges for being led to using frequency division duplex mode
The uplink band and band downlink of letter.
In the present embodiment, multiple frequency ranges are pre-defined in unauthorized (Unlicensed) frequency range, in the mistake communicated
Cheng Zhong carries out Interference Detection to multiple frequency range, obtains the current interference value that each frequency range communicates at current time, and according to inspection
The current interference value measured selects uplink band from multiple frequency ranges of definition and band downlink, uplink band are with band downlink
Different frequency range, in order to be communicated using frequency division duplex mode.
Wherein, multiple frequency ranges predetermined can be symmetrical uplink and downlink frequency range, that is, fixed pair of each uplink band
One group of band downlink is answered, when carrying out interference value detection, can only detect the current interference value of all uplink bands of definition, or
Person detects the current interference value of all band downlinks of definition, or detects the current interference of be defined uplink and downlink frequency range
Value, then selected to interfere weaker uplink and downlink frequency range by current interference value that detection obtains.
Multiple frequency ranges predetermined can be asymmetrical uplink and downlink frequency range, wherein asymmetrical uplink and downlink frequency range
It can be and provide one group of uplink band and one group of band downlink, be also possible to define one group of frequency range, in order to therefrom select
Two different frequency ranges are as uplink and downlink frequency range.
According to the embodiment of the present application, by carrying out interference inspection respectively to multiple frequency ranges predetermined in unauthorized frequency range
Survey, obtain with the one-to-one multiple current interference values of multiple frequency ranges, selected from multiple frequency ranges according to multiple current interference values
Uplink band and band downlink for being communicated using frequency division duplex mode, thus using the current interference value detected from
The uplink and downlink frequency range that unauthorized Frequency Band Selection is interfered weaker, is communicated using frequency division duplex mode, and in identical cost
Under, the message transmission rate peak value of time division duplex is lower than frequency division duplex mode, and then when solving in unauthorized frequency range
The low technical problem of division duplex system message transmission rate.
For example, the capacity of TD-LTE system is limited under conditions of identical cost.The TDD system of one carrier wave is in uplink and downlink
Carrier wave proportion is 1:3, in the case that special subframe proportion is 10:2:2, downlink peak rates 110Mbps, and upstream peak rate
Only 10Mbps.However, the FDD system of a carrier wave, downlink peak rates 150Mbps, upstream peak rate can achieve
50Mbps。
In addition, user does uplink in partial time slot, is doing the network planning when due to using time division duplex communication
When, it needs to take into account the loss, and then reduce the coverage area of network.And use frequency division duplex mode communication then can be with
Avoid the above problem.
Preferably, Interference Detection is being carried out to multiple frequency ranges predetermined in unauthorized frequency range respectively, is being obtained and more
After the one-to-one multiple current interference values of a frequency range, method further include: inquiry and multiple current interference values one are a pair of respectively
The multiple corrected parameters answered；Multiple current interference values are modified respectively using multiple corrected parameters, wherein multiple amendment ginsengs
Each corrected parameter is for being modified corresponding current interference value in number；According to multiple current interference values from multiple
Uplink band and band downlink of the selection for being communicated using frequency division duplex mode include: according to revised more in frequency range
A current interference value selects the uplink band and band downlink for being communicated using frequency division duplex mode from multiple frequency ranges.
Due to the obtained interference value of detection and there are errors between actual interference value, that is to say, that detects is current dry
It disturbs the actual interference value of value and non-present, in the present embodiment, can carry out analytical calculation according to preparatory to obtain each frequency range corresponding
Corrected parameter, and store in this way, can inquire corresponding corrected parameter when carrying out Frequency Band Selection, be detected to correct
Current interference value, to improve the accuracy of current interference value, and then it is small to guarantee that the frequency range selected is disturbed.
Preferably, be utilized respectively multiple current interference values inquire to obtain it is multiple correspondingly with multiple current interference values
Before corrected parameter, method further include: by carrying out simulation calculation to multiple frequency ranges, obtained multiple theoretical interference values,
Wherein, each frequency range corresponds to multiple theoretical interference values in multiple frequency ranges；By carrying out Interference Detection to multiple frequency ranges, obtain more
A frequency range measures interference value correspondingly；According to pre-set correction algorithm according to the corresponding multiple theories of each frequency range
The interference value corrected parameter for measuring interference value and each frequency range being calculated corresponding with each frequency range.
In the present embodiment, the corrected parameter of each frequency range can be the theoretical interference value that is obtained by simulation calculation with
What detection obtained measures what interference value was calculated according to default calculation.Wherein, theoretical interference value can be by difference
The position of user equipment carry out analogue simulation, the multiple theoretical interference values being calculated, measure interference value can be with it is above-mentioned
The interference value that current interference value uses identical detection mode to detect.
Optionally, amendment interference value can be calculated using following several modes in the embodiment of the present application:
(1) maximum interference is corrected: delta_D=max (I1, I2, I3, I4 ..., Ii ..., IN)-IM；
(2) average interference is corrected: delta_D=average (I1, I2, I3, I4 ..., Ii ..., IN)-IM；
(3) X% interferes ratio amendment: P (Ii > Ix)≤x% selectes Ix, so that theoretical disturbed condition is greater than the probability of Ix
Less than X%, delta_D=Ix-IM.
Wherein, delta_D is corrected parameter, and I1, I2, I3, I4 ..., Ii ..., IN respectively indicate theoretical interference value, IM table
Show and measures interference value.
In the embodiment of the present application, measures interference value and be also possible to the flat of the multiple survey interference values obtained by repeated detection
Mean value, maximum value or set point value therein etc..
Preferably, multiple current interference values are utilized respectively to inquire to obtain and multiple current interference values are one-to-one multiple repairs
Positive parameter includes: the disturbed condition of determining multiple frequency ranges respectively；Inquiry is a pair of with multiple current interference values one in an interference situation
The multiple corrected parameters answered.
In the embodiment of the present application, when the Interference Detection of frequency range is to detect to obtain by access point apparatus, such as base station detection
Downstream frequency disturbed condition, detected by the Sniffer that base station is arranged.In real system transmission, due to this
Frequency does downlink transfer, and that be actually interfered is user, so the disturbed condition and actual disturbed condition that detect have one
Fixed difference.In addition, the uplink and downlink transmission situation due to interference source is different, also the interference detected and actual interference can be made to have
Difference.Disturbed condition can be divided into several, comprising: interference source is uplink；Interference source is downlink transfer；Interference source is uplink
Transmission and downlink transfer.
Below with reference to Fig. 2 and Fig. 3 be respectively uplink to interference source and interference source is that downlink transfer is illustrated.
When interference source is uplink, disturbed condition is as shown in Figure 2.Interference value is measured as uplink user equipment to survey
The disturbed condition for measuring base station, is expressed as IM.
Actual interference is uplink user to the interference of downlink user, can all have different interference to different user locations
Value, can be obtained by simulation calculation, i.e., theoretical interference value is expressed as { I1, I2, I3, I4 ..., Ii ..., IN }.It is theoretical
Interference value can also be obtained by the measurement situation of other similar operational networks.
Using theoretical interference value and the corrected parameter delta_UD for measuring interference value calculating uplink interference, can use as follows
Several ways:
Maximum interference amendment: delta_UD=max (I1, I2, I3, I4 ..., Ii ..., IN)-IM
Average interference amendment: delta_UD=average (I1, I2, I3, I4 ..., Ii ..., IN)-IM
X% interferes ratio amendment: P (Ii > Ix)≤x% selectes Ix, so that actual capabilities disturbed condition is general greater than Ix
Rate is less than X%, delta_UD=Ix-IM.
When interference source is downlink transfer, disturbed condition is as shown in Figure 3.Measuring interference is downlink base station to measurement base station
Disturbed condition, be expressed as I ' M.
Actual interference is downlink base station to the interference of downlink user, can all have different interference to different user locations
Value, can be obtained by simulation calculation, i.e., theoretical interference value is expressed as { I ' 1, I ' 2, I ' 3, I ' 4 ..., I ' i ..., I '
N}.Theoretical interference value can also be obtained by the measurement situation of other similar operational networks.
The corrected parameter delta_DD that downlink is interfered is calculated with interference value is measured using theoretical interference value, can be used as follows
Several ways:
Maximum interference amendment: delta_DD=max (I ' 1, I ' 2, I ' 3, I ' 4 ..., I ' i ..., I ' N)-I ' M
Average interference amendment: delta_DD=average (I ' 1, I ' 2, I ' 3, I ' 4 ..., I ' i ..., I ' N)-I ' M
X% interferes ratio amendment: P (I ' i > I ' x)≤x% selectes I ' x, so that actual capabilities disturbed condition is greater than I ' x
Probability be less than X%, delta_DD=I ' x-I ' M.
In the present embodiment, for interference source be time division duplex the case where, can match according to the uplink and downlink of interference source, to must
To corresponding corrected parameter, for example, it is assumed that delta_UD=2dB, delta_DD=7dB, interference when uplink and downlink proportion is 2:2
Correction value is 0.5*2+0.5*7=4.5dB.Wherein, the uplink and downlink proportion of interference source can obtain in the following manner: base station is logical
The system message for crossing detection interference source obtains the uplink and downlink proportion of interference source；The variation feelings that base station passes through detection interference source interference
Condition obtains the uplink and downlink proportion of interference source；Base station matches situation by the uplink and downlink that third-party server obtains interference source, than
Such as obtained by SON server or network management system.
Preferably, multiple frequency ranges are symmetrical multiple uplink and downlink frequency ranges predetermined in unauthorized frequency range, to non-
Multiple frequency ranges predetermined carry out Interference Detection respectively in authorized spectrum band, obtain one-to-one multiple current with multiple frequency ranges
Interference value includes: to multiple uplink bands predetermined in unauthorized frequency range or multiple band downlink difference predetermined
Interference Detection is carried out, multiple current interference values are obtained；It is selected from multiple frequency ranges according to multiple current interference values for using frequency
The uplink band and band downlink for dividing duplex mode to be communicated include: currently to do in selection multiple uplink bands predetermined
Disturb in the smallest uplink band of value and its symmetrical band downlink or multiple band downlinks predetermined current interference value most
Small band downlink and its symmetrical uplink band.
In the present embodiment, symmetrical multiple uplink and downlink frequency ranges are pre-defined, when carrying out Interference Detection, only detect uplink
Frequency range or band downlink interfere lesser uplink band (or band downlink) using the current interference value selection detected, then
According to symmetric relation, corresponding band downlink (or uplink band) is selected.Below for being detected to band downlink, carry out
Say illustration.
By taking 5.1GHz and 5.8GHz frequency range as an example, it is assumed that system defines behavior 5150-5250MHz, downlink 5725-
5825MHz, system bandwidth 20MHz have then corresponded to 5 symmetrical frequencies of uplink and downlink.Frequency 1 is uplink 5150-5170MHz,
Downlink 5725-5745MHz, frequency 2 are uplink 5170-5190MHz, downlink 5745-5765MHz ....In this case, system
The uplink and downlink link direction and symmetrical frequency information of definition are as shown in table 1.
Table 1
The interference of surrounding is detected by Sniffer in base station, traverses all downstream frequency 5725-5825MHz, inspection
The corresponding current interference value of all downstream frequencies is surveyed, as shown in table 2.
Table 2
In this case, base station all counts interference value to all downstream frequencies, for example, frequency 1 detect interference value be-
70dBm/20MHz, frequency 2 detect that interference value is -60dBm/20MHz etc..
In this case, it can be seen that the disturbed condition of frequency 3 is smaller, can choose frequency 3 and is used as uplink and downlink frequency.
But in order to guarantee accuracy, above-mentioned correcting mode is modified disturbed condition,
Assuming that delta_UD=2dB, delta_DD=7dB, interferential loads value when uplink and downlink proportion is 2:2 is 0.5*2+
0.5*7=4.5dB, DL indicate downlink interference, and UL indicates uplink interference, shown in revised disturbed condition table 3:
Table 3
Interfere the smallest frequency for downstream frequency after selecting amendment in measurement frequency, symmetrical frequency is upstream frequency.
Frequency 4:5210-5230MHz is selected to do uplink in the citing, 5785-5805MHz does downlink transfer.
It is identical as the detection mode of downstream frequency if only detecting upstream frequency in the present embodiment, it is not described herein.
According to the embodiment of the present application, uplink and downlink is selected by the current interference value of detection uplink band or band downlink
The frequency range of frequency range, detection is few, and then improves the speed of Frequency Band Selection.
Optionally, multiple frequency ranges are symmetrical multiple uplink and downlink frequency ranges predetermined in unauthorized frequency range, to non-
Multiple frequency ranges predetermined carry out Interference Detection respectively in authorized spectrum band, obtain one-to-one multiple current with multiple frequency ranges
Interference value includes: to multiple uplink bands predetermined in unauthorized frequency range and multiple band downlink difference predetermined
Interference Detection is carried out, multiple current interference values are obtained；It is selected from multiple frequency ranges according to multiple current interference values for using frequency
The uplink band and band downlink for dividing duplex mode to be communicated include: the pre-defined symmetrical multiple uplink and downlink frequency ranges of selection
The middle the smallest symmetrical uplink and downlink frequency range of average interference value, wherein average interference value is upper line frequency in multiple uplink and downlink frequency ranges
The average value of the corresponding current interference value of section current interference value corresponding with its symmetrical band downlink.
The present embodiment is then to detect simultaneously to uplink band and band downlink, by taking frequency range defined above as an example, into
Row illustrates.
By Interference Detection and the current interference value that carries out revised uplink and downlink frequency range it is as shown in table 4:
Table 4
In this case, the average interference value of frequency 3 is -69dBm/20MHz, and interference is minimum, therefore, selects frequency 3,
Uplink 5190-5210MHz, downlink 5765-5785MHz.
According to the embodiment of the present application, by carrying out Interference Detection respectively to upper and lower frequency range and being modified, to guarantee
Uplink and downlink Communication Jamming is in lesser level, improves communication quality.
Optionally, multiple frequency ranges be in unauthorized frequency range asymmetrical multiple uplink bands predetermined and it is multiple under
Line frequency section carries out Interference Detection to multiple frequency ranges predetermined in unauthorized frequency range respectively, obtains with multiple frequency ranges one by one
Corresponding multiple current interference values include: to multiple uplink bands predetermined in unauthorized frequency range and predetermined more
A band downlink carries out Interference Detection respectively, obtains multiple current interference values；According to multiple current interference values from multiple frequency ranges
Uplink band and band downlink of the selection for being communicated using frequency division duplex mode include: that selection is predetermined multiple
It is corresponding current dry in the corresponding current the smallest uplink band of interference value and multiple band downlinks predetermined in line frequency section
Disturb the smallest band downlink of value.
In the present embodiment, frequency resource predetermined be asymmetrical multiple uplink bands and multiple band downlinks, and
Interference Detection is carried out to each frequency range respectively, a uplink band is selected from multiple uplink bands, from multiple band downlinks
A band downlink is selected, for being communicated, interferes the smallest uplink band and band downlink in this way, can choose out, from
And guarantee communication quality.
For example, by taking 5.1GHz and 5.8GHz frequency range as an example, it is assumed that system defines behavior 5150-5250MHz, system band
Width is 20MHz, then has corresponded to 5 upstream frequencies, and frequency 1 is uplink 5150-5170MHz, and frequency 2 is uplink 5170-
5190MHz ..., lower behavior 5725-5850MHz, system bandwidth 20MHz, then corresponded to 6 downstream frequencies, and frequency 6 is downlink
5725-5745MHz, frequency 7 are downlink 5745-5765MHz ....Define uplink and downlink link direction and asymmetrical frequency
Information, as shown in table 5.
Table 5
All frequencies of uplink and downlink are all detected, disturbed condition is measured.Such as measurement 5150-5250MHz and
The disturbed condition of 5725-5850MHz all frequencies, it is assumed that the interference size such as table after Interference Detection and interferential loads
Shown in 6:
Table 6
In the embodiment, the interference of frequency 3:5190-5210MHz is minimum, and the interference of frequency 11:5825-5845MHz is most
It is small, therefore, select frequency 3 as uplink band, frequency 11 is used as band downlink.
Optionally, multiple frequency ranges are asymmetrical frequency range, are distinguished multiple frequency ranges predetermined in unauthorized frequency range
Interference Detection is carried out, obtains with the one-to-one multiple current interference values of multiple frequency ranges including: according between pre-set duplex
All uplink and downlink frequency range combinations are determined from multiple frequency ranges every frequency；To all upper line frequencies in the combination of all uplink and downlink frequency ranges
The detection of Duan Jinhang uplink interference obtains and the one-to-one multiple current uplink interference values of all uplink bands；To all upper and lower
All band downlinks carry out downlink Interference Detection in the combination of line frequency section；It obtains one-to-one multiple current with all band downlinks
Downlink interference value；It is selected from multiple frequency ranges according to multiple current interference values for using frequency division duplex mode to be communicated
Line frequency section and band downlink include: from the uplink and downlink frequency range combination selection the smallest uplink and downlink frequency range of average interference value determined
Combination, wherein average interference value be determine uplink and downlink frequency range combination in the corresponding current uplink interference value of uplink band with
The average value of the corresponding current downlink interference value of band downlink.
In the present embodiment, equally positioning is asymmetrical frequency range, but does not provide uplink and downlink frequency range, therefore, can be random
It is combined comprising having identical frequency but defining the combination of different uplink and downlink frequency ranges and belong to different combinations, example
Such as, combine: { frequency 1- uplink, frequency 4- downlink } and combines: { frequency 1- downlink, frequency 4- uplink } is different combinations.?
After determining all combination of frequencies, Interference Detection (and being modified) is carried out to each combination of frequency, so that it is determined that phase out
The current interference value answered is made in order to therefrom select the average interference value of two frequency ranges in combination to interfere lesser combination of frequency
For uplink and downlink frequency range.
Optionally, in the embodiment of the present application, it can also be and Interference Detection is carried out respectively to frequency range predetermined, then press
All uplink and downlink frequency range combinations are determined from multiple frequency ranges according to pre-set Duplex Spacing frequency, and all combinations are carried out
Interferential loads obtain revised current interference value, select the smallest combination of average interference value.
For example, by taking 5.1GHz and 5.8GHz frequency range as an example, it is assumed that system define usable spectrum be 5150-5250MHz and
5725-5850MHz, system bandwidth 20MHz have then corresponded to 11 frequencies, and frequency 1 is 5150-5170MHz, and frequency 2 is
5170-5190MHz ..., frequency 6 are 5725-5745MHz, and frequency 7 is 5745-5765MHz ....All frequencies can be carried out
Uplink or downlink transfer, as shown in table 7.In order to guarantee that system uplink and downlink does not interfere with, system equally defines Duplex Spacing, than
Such as 40MHz.
Table 7
Interference Detection is carried out to each frequency range, obtained interference value is as shown in table 8:
Table 8
Consider that Duplex Spacing is under conditions of 40MHz assumes, the frequency of uplink and downlink transmission at least needs between 40MHz frequency
Every.Therefore possible combination of frequency be { Isosorbide-5-Nitrae }, { 1,5 }, { 1,6 } ..., { 1,11 }, { 2,5 }, { 2,6 } ..., { 2,11 } ...,
{3,6},{3,7},…,{3,11},…,{8,11}。
Therefore to different combination of frequencies in the case of, it is assumed that different uplink and downlink transmission carry out interferential loads.Such as it is right
Frequency 1 and frequency 4 combine, and first assume 1 uplink of frequency, 4 downlink of frequency, then be modified to the interference detected.Assume again that frequency
1 downlink of rate, 4 uplink of frequency, is modified the interference detected.All combination of frequency and difference are traversed using this method
Uplink and downlink transmit situation, select the smallest combination of frequency of average interference and uplink and downlink transmission.
Optionally, multiple frequency ranges are asymmetrical frequency range, are distinguished multiple frequency ranges predetermined in unauthorized frequency range
Interference Detection is carried out, obtains with the one-to-one multiple current interference values of multiple frequency ranges including: according between pre-set duplex
All uplink and downlink frequency range combinations are determined from multiple frequency ranges every frequency；To all upper line frequencies in the combination of all uplink and downlink frequency ranges
The detection of Duan Jinhang uplink interference obtains and the one-to-one multiple current uplink interference values of all uplink bands；To all upper and lower
All band downlinks carry out downlink Interference Detection in the combination of line frequency section；It obtains one-to-one multiple current with all band downlinks
Downlink interference value；It is selected from multiple frequency ranges according to multiple current interference values for using frequency division duplex mode to be communicated
Line frequency section and band downlink include: from the corresponding current uplink interference of uplink and downlink frequency range combination selection uplink band determined
It is worth the smallest uplink and downlink frequency range combination, alternatively, corresponding current from the uplink and downlink frequency range combination selection band downlink determined
The smallest uplink and downlink frequency range combination of downlink interference value.
The present embodiment is similar with the asymmetrical frequency range in previous embodiment, and difference is in this present embodiment and using frequently
The average interference value of rate combination selects uplink and downlink frequency range to combine, but corresponding according to uplink band in combination or band downlink
Interference value select, to select uplink band or the smallest combination of the corresponding interference value of band downlink.
According to the embodiment of the present application, by the way that frequency division duplex mode is used for unauthorized frequency range, can choose respectively upper and lower
Capable frequency agile avoids the interference problem of unauthorized frequency range, and is able to ascend network capacity.
The embodiment of the present application also provides a kind of communication frequency selection devices, as described in Figure 4, the communication frequency selection device
It include: first detection unit 10 and selecting unit 20.
First detection unit 10 is used to carry out Interference Detection respectively to multiple frequency ranges predetermined in unauthorized frequency range,
It obtains and the one-to-one multiple current interference values of multiple frequency ranges.
Selecting unit 20 according to multiple current interference values from multiple frequency ranges for selecting for using frequency division duplex mode
The uplink band and band downlink communicated.
In the present embodiment, multiple frequency ranges are pre-defined in unauthorized (Unlicensed) frequency range, in the mistake communicated
Cheng Zhong carries out Interference Detection to multiple frequency range, obtains the current interference value that each frequency range communicates at current time, and according to inspection
The current interference value measured selects uplink band from multiple frequency ranges of definition and band downlink, uplink band are with band downlink
Different frequency range, in order to be communicated using frequency division duplex mode.
Wherein, multiple frequency ranges predetermined can be symmetrical uplink and downlink frequency range, that is, fixed pair of each uplink band
One group of band downlink is answered, when carrying out interference value detection, can only detect the current interference value of all uplink bands of definition, or
Person detects the current interference value of all band downlinks of definition, or detects the current interference of be defined uplink and downlink frequency range
Value, then selected to interfere weaker uplink and downlink frequency range by current interference value that detection obtains.
Multiple frequency ranges predetermined can be asymmetrical uplink and downlink frequency range, wherein asymmetrical uplink and downlink frequency range
It can be and provide one group of uplink band and one group of band downlink, be also possible to define one group of frequency range, in order to therefrom select
Two different frequency ranges are as uplink and downlink frequency range.
According to the embodiment of the present application, by carrying out interference inspection respectively to multiple frequency ranges predetermined in unauthorized frequency range
Survey, obtain with the one-to-one multiple current interference values of multiple frequency ranges, selected from multiple frequency ranges according to multiple current interference values
Uplink band and band downlink for being communicated using frequency division duplex mode, thus using the current interference value detected from
The uplink and downlink frequency range that unauthorized Frequency Band Selection is interfered weaker, is communicated using frequency division duplex mode, and in identical cost
Under, the message transmission rate peak value of time division duplex is lower than frequency division duplex mode, and then when solving in unauthorized frequency range
The low technical problem of division duplex system message transmission rate.
For example, the capacity of TD-LTE system is limited under conditions of identical cost.The TDD system of one carrier wave is in uplink and downlink
Carrier wave proportion is 1:3, in the case that special subframe proportion is 10:2:2, downlink peak rates 110Mbps, and upstream peak rate
Only 10Mbps.However, the FDD system of a carrier wave, downlink peak rates 150Mbps, upstream peak rate can achieve
50Mbps。
In addition, user does uplink in partial time slot, is doing the network planning when due to using time division duplex communication
When, it needs to take into account the loss, and then reduce the coverage area of network.And use frequency division duplex mode communication then can be with
Avoid the above problem.
Preferably, device further include: query unit, for multiple frequency ranges predetermined in unauthorized frequency range point
Not carry out Interference Detection, obtain with after the one-to-one multiple current interference values of multiple frequency ranges, respectively inquiry with it is multiple current
Interference value multiple corrected parameters correspondingly；Amending unit, for utilizing multiple corrected parameters respectively to multiple current interference
Value is modified, wherein each corrected parameter is for repairing corresponding current interference value in multiple corrected parameters
Just；Wherein, selecting unit is also used to be selected from multiple frequency ranges according to revised multiple current interference values for using frequency division
The uplink band and band downlink that duplex mode is communicated.
Due to the obtained interference value of detection and there are errors between actual interference value, that is to say, that detects is current dry
It disturbs the actual interference value of value and non-present, in the present embodiment, can carry out analytical calculation according to preparatory to obtain each frequency range corresponding
Corrected parameter, and store in this way, can inquire corresponding corrected parameter when carrying out Frequency Band Selection, be detected to correct
Current interference value, to improve the accuracy of current interference value, and then it is small to guarantee that the frequency range selected is disturbed.
Preferably, device further include: simulation unit, for be utilized respectively multiple current interference values inquire to obtain with it is multiple
Current interference value is correspondingly before multiple corrected parameters, and by carrying out simulation calculation to multiple frequency ranges, what is obtained is more
A theory interference value, wherein each frequency range corresponds to multiple theoretical interference values in multiple frequency ranges；Second detection unit, for leading to
It crosses and Interference Detection is carried out to multiple frequency ranges, obtain multiple frequency ranges and measure interference value correspondingly；Computing unit, for according to pre-
Corresponding multiple theoretical interference value is corresponding with each frequency range measures interference according to each frequency range for the correction algorithm being first arranged
The corrected parameter of each frequency range is calculated in value.
In the present embodiment, the corrected parameter of each frequency range can be the theoretical interference value that is obtained by simulation calculation with
What detection obtained measures what interference value was calculated according to default calculation.Wherein, theoretical interference value can be by difference
The position of user equipment carry out analogue simulation, the multiple theoretical interference values being calculated, measure interference value can be with it is above-mentioned
The interference value that current interference value uses identical detection mode to detect.
Optionally, amendment interference value can be calculated using following several modes in the embodiment of the present application:
(1) maximum interference is corrected: delta_D=max (I1, I2, I3, I4 ..., Ii ..., IN)-IM；
(2) average interference is corrected: delta_D=average (I1, I2, I3, I4 ..., Ii ..., IN)-IM；
(3) X% interferes ratio amendment: P (Ii > Ix)≤x% selectes Ix, so that theoretical disturbed condition is greater than the probability of Ix
Less than X%, delta_D=Ix-IM.
Wherein, delta_D is corrected parameter, and I1, I2, I3, I4 ..., Ii ..., IN respectively indicate theoretical interference value, IM table
Show and measures interference value.
In the embodiment of the present application, measures interference value and be also possible to the flat of the multiple survey interference values obtained by repeated detection
Mean value, maximum value or set point value therein etc..
Preferably, query unit includes: the first determining module, for determining the disturbed condition of multiple frequency ranges respectively；Inquiry
Module, for inquire in an interference situation with multiple current interference values multiple corrected parameters correspondingly.
In the embodiment of the present application, when the Interference Detection of frequency range is to detect to obtain by access point apparatus, such as base station detection
Downstream frequency disturbed condition, detected by the Sniffer that base station is arranged.In real system transmission, due to this
Frequency does downlink transfer, and that be actually interfered is user, so the disturbed condition and actual disturbed condition that detect have one
Fixed difference.In addition, the uplink and downlink transmission situation due to interference source is different, also the interference detected and actual interference can be made to have
Difference.Disturbed condition can be divided into several, comprising: interference source is uplink；Interference source is downlink transfer；Interference source is uplink
Transmission and downlink transfer.
Below with reference to Fig. 2 and Fig. 3 be respectively uplink to interference source and interference source is that downlink transfer is illustrated.
When interference source is uplink, disturbed condition is as shown in Figure 2.Interference value is measured as uplink user equipment to survey
The disturbed condition for measuring base station, is expressed as IM.
Actual interference is uplink user to the interference of downlink user, can all have different interference to different user locations
Value, can be obtained by simulation calculation, i.e., theoretical interference value is expressed as { I1, I2, I3, I4 ..., Ii ..., IN }.It is theoretical
Interference value can also be obtained by the measurement situation of other similar operational networks.
Using theoretical interference value and the corrected parameter delta_UD for measuring interference value calculating uplink interference, can use as follows
Several ways:
Maximum interference amendment: delta_UD=max (I1, I2, I3, I4 ..., Ii ..., IN)-IM
Average interference amendment: delta_UD=average (I1, I2, I3, I4 ..., Ii ..., IN)-IM
X% interferes ratio amendment: P (Ii > Ix)≤x% selectes Ix, so that actual capabilities disturbed condition is general greater than Ix
Rate is less than X%, delta_UD=Ix-IM.
When interference source is downlink transfer, disturbed condition is as shown in Figure 3.Measuring interference is downlink base station to measurement base station
Disturbed condition, be expressed as I ' M.
Actual interference is downlink base station to the interference of downlink user, can all have different interference to different user locations
Value, can be obtained by simulation calculation, i.e., theoretical interference value is expressed as { I ' 1, I ' 2, I ' 3, I ' 4 ..., I ' i ..., I '
N}.Theoretical interference value can also be obtained by the measurement situation of other similar operational networks.
The corrected parameter delta_DD that downlink is interfered is calculated with interference value is measured using theoretical interference value, can be used as follows
Several ways:
Maximum interference amendment: delta_DD=max (I ' 1, I ' 2, I ' 3, I ' 4 ..., I ' i ..., I ' N)-I ' M
Average interference amendment: delta_DD=average (I ' 1, I ' 2, I ' 3, I ' 4 ..., I ' i ..., I ' N)-I ' M
X% interferes ratio amendment: P (I ' i > I ' x)≤x% selectes I ' x, so that actual capabilities disturbed condition is greater than I ' x
Probability be less than X%, delta_DD=I ' x-I ' M.
In the present embodiment, for interference source be time division duplex the case where, can match according to the uplink and downlink of interference source, to must
To corresponding corrected parameter, for example, it is assumed that delta_UD=2dB, delta_DD=7dB, interference when uplink and downlink proportion is 2:2
Correction value is 0.5*2+0.5*7=4.5dB.Wherein, the uplink and downlink proportion of interference source can obtain in the following manner: base station is logical
The system message for crossing detection interference source obtains the uplink and downlink proportion of interference source；The variation feelings that base station passes through detection interference source interference
Condition obtains the uplink and downlink proportion of interference source；Base station matches situation by the uplink and downlink that third-party server obtains interference source, than
Such as obtained by SON server or network management system.
Preferably, multiple frequency ranges are symmetrical multiple uplink and downlink frequency ranges predetermined, the first inspection in unauthorized frequency range
Unit is surveyed to be also used to multiple uplink bands predetermined in unauthorized frequency range or multiple band downlinks predetermined point
Not carry out Interference Detection, obtain multiple current interference values；Selecting unit is also used to select in multiple uplink bands predetermined
It is currently done in the current the smallest uplink band of interference value and its symmetrical band downlink or multiple band downlinks predetermined
Disturb the smallest band downlink of value and its symmetrical uplink band.
In the present embodiment, symmetrical multiple uplink and downlink frequency ranges are pre-defined, when carrying out Interference Detection, only detect uplink
Frequency range or band downlink interfere lesser uplink band (or band downlink) using the current interference value selection detected, then
According to symmetric relation, corresponding band downlink (or uplink band) is selected.Below for being detected to band downlink, carry out
Say illustration.
By taking 5.1GHz and 5.8GHz frequency range as an example, it is assumed that system defines behavior 5150-5250MHz, downlink 5725-
5825MHz, system bandwidth 20MHz have then corresponded to 5 symmetrical frequencies of uplink and downlink.Frequency 1 is uplink 5150-5170MHz,
Downlink 5725-5745MHz, frequency 2 are uplink 5170-5190MHz, downlink 5745-5765MHz ....In this case, system
The uplink and downlink link direction and symmetrical frequency information of definition are as shown in table 1.
The interference of surrounding is detected by Sniffer in base station, traverses all downstream frequency 5725-5825MHz, inspection
The corresponding current interference value of all downstream frequencies is surveyed, as shown in table 2.
In this case, base station all counts interference value to all downstream frequencies, for example, frequency 1 detect interference value be-
70dBm/20MHz, frequency 2 detect that interference value is -60dBm/20MHz etc..
In this case, it can be seen that the disturbed condition of frequency 3 is smaller, can choose frequency 3 and is used as uplink and downlink frequency.
But in order to guarantee accuracy, above-mentioned correcting mode is modified disturbed condition,
Assuming that delta_UD=2dB, delta_DD=7dB, interferential loads value when uplink and downlink proportion is 2:2 is 0.5*2+
0.5*7=4.5dB, DL indicate downlink interference, and UL indicates uplink interference, shown in revised disturbed condition table 3.
Interfere the smallest frequency for downstream frequency after selecting amendment in measurement frequency, symmetrical frequency is upstream frequency.
Frequency 4:5210-5230MHz is selected to do uplink in the citing, 5785-5805MHz does downlink transfer.
It is identical as the detection mode of downstream frequency if only detecting upstream frequency in the present embodiment, it is not described herein.
According to the embodiment of the present application, uplink and downlink is selected by the current interference value of detection uplink band or band downlink
The frequency range of frequency range, detection is few, and then improves the speed of Frequency Band Selection.
Optionally, multiple frequency ranges are symmetrical multiple uplink and downlink frequency ranges predetermined, the first inspection in unauthorized frequency range
Unit is surveyed to be also used to multiple uplink bands predetermined in unauthorized frequency range and multiple band downlinks predetermined point
Not carry out Interference Detection, obtain multiple current interference values；Selecting unit is also used to select pre-defined symmetrical multiple uplink and downlink
The smallest symmetrical uplink and downlink frequency range of average interference value in frequency range, wherein average interference value be multiple uplink and downlink frequency ranges on
The average value of the corresponding current interference value of line frequency section current interference value corresponding with its symmetrical band downlink.
The present embodiment is then to detect simultaneously to uplink band and band downlink, by taking frequency range defined above as an example, into
Row illustrates.
By Interference Detection and the current interference value that carries out revised uplink and downlink frequency range it is as shown in table 4.
In this case, the average interference value of frequency 3 is -69dBm/20MHz, and interference is minimum, therefore, selects frequency 3,
Uplink 5190-5210MHz, downlink 5765-5785MHz.
According to the embodiment of the present application, by carrying out Interference Detection respectively to upper and lower frequency range and being modified, to guarantee
Uplink and downlink Communication Jamming is in lesser level, improves communication quality.
Optionally, multiple frequency ranges be in unauthorized frequency range asymmetrical multiple uplink bands predetermined and it is multiple under
Line frequency section, first detection unit are also used to multiple uplink bands predetermined in unauthorized frequency range and predetermined more
A band downlink carries out Interference Detection respectively, obtains multiple current interference values；Selecting unit is also used to select predetermined more
It is corresponding in the corresponding current the smallest uplink band of interference value and multiple band downlinks predetermined in a uplink band to work as
The preceding the smallest band downlink of interference value.
In the present embodiment, frequency resource predetermined be asymmetrical multiple uplink bands and multiple band downlinks, and
Interference Detection is carried out to each frequency range respectively, a uplink band is selected from multiple uplink bands, from multiple band downlinks
A band downlink is selected, for being communicated, interferes the smallest uplink band and band downlink in this way, can choose out, from
And guarantee communication quality.
For example, by taking 5.1GHz and 5.8GHz frequency range as an example, it is assumed that system defines behavior 5150-5250MHz, system band
Width is 20MHz, then has corresponded to 5 upstream frequencies, and frequency 1 is uplink 5150-5170MHz, and frequency 2 is uplink 5170-
5190MHz ..., lower behavior 5725-5850MHz, system bandwidth 20MHz, then corresponded to 6 downstream frequencies, and frequency 6 is downlink
5725-5745MHz, frequency 7 are downlink 5745-5765MHz ....Define uplink and downlink link direction and asymmetrical frequency
Information, as shown in table 5.
All frequencies of uplink and downlink are all detected, disturbed condition is measured.Such as measurement 5150-5250MHz and
The disturbed condition of 5725-5850MHz all frequencies, it is assumed that the interference size such as table after Interference Detection and interferential loads
Shown in 6.
In the embodiment, the interference of frequency 3:5190-5210MHz is minimum, and the interference of frequency 11:5825-5845MHz is most
It is small, therefore, select frequency 3 as uplink band, frequency 11 is used as band downlink.
Optionally, multiple frequency ranges be asymmetrical frequency range, first detection unit includes: the second determining module, for according to
Pre-set Duplex Spacing frequency determines all uplink and downlink frequency range combinations from multiple frequency ranges；First detection module is used for
Uplink interference detection is carried out to all uplink bands in the combination of all uplink and downlink frequency ranges, is obtained a pair of with all uplink bands one
The multiple current uplink interference values answered；Second detection module, for all uplink and downlink frequency ranges combination in all band downlinks into
Row downlink Interference Detection obtains and all band downlinks multiple current downlink interference values correspondingly；Selecting unit is also used to
From the smallest uplink and downlink frequency range combination of uplink and downlink frequency range combination selection average interference value determined, wherein average interference value
For determine uplink and downlink frequency range combination in the corresponding current uplink interference value of uplink band it is corresponding with band downlink work as it is front lower
The average value of row interference value.
In the present embodiment, equally positioning is asymmetrical frequency range, but does not provide uplink and downlink frequency range, therefore, can be random
It is combined comprising having identical frequency but defining the combination of different uplink and downlink frequency ranges and belong to different combinations, example
Such as, combine: { frequency 1- uplink, frequency 4- downlink } and combines: { frequency 1- downlink, frequency 4- uplink } is different combinations.?
After determining all combination of frequencies, Interference Detection (and being modified) is carried out to each combination of frequency, so that it is determined that phase out
The current interference value answered is made in order to therefrom select the average interference value of two frequency ranges in combination to interfere lesser combination of frequency
For uplink and downlink frequency range.
Optionally, multiple frequency ranges be asymmetrical frequency range, first detection unit includes: third determining module, for according to
Pre-set Duplex Spacing frequency determines all uplink and downlink frequency range combinations from multiple frequency ranges；Third detection module, is used for
Uplink interference detection is carried out to all uplink bands in the combination of all uplink and downlink frequency ranges, is obtained a pair of with all uplink bands one
The multiple current uplink interference values answered；4th detection module, for all uplink and downlink frequency ranges combination in all band downlinks into
Row downlink Interference Detection obtains and all band downlinks multiple current downlink interference values correspondingly；Selecting unit is also used to
From the corresponding current the smallest uplink and downlink groups of frequency bands of uplink interference value of uplink and downlink frequency range combination selection uplink band determined
It closes, alternatively, the smallest upper and lower from the corresponding current downlink interference value of uplink and downlink frequency range combination selection band downlink determined
The combination of line frequency section.
The present embodiment is similar with the asymmetrical frequency range in previous embodiment, and difference is in this present embodiment and using frequently
The average interference value of rate combination selects uplink and downlink frequency range to combine, but corresponding according to uplink band in combination or band downlink
Interference value select, to select uplink band or the smallest combination of the corresponding interference value of band downlink.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.To above-described embodiment (packet
Include embodiment of the method and Installation practice) be described during, cited frequency range, such as 5.1GHz and 5.8GHz frequency range
Deng, it is only for description a specific embodiment of the invention exemplifications set out, the technical solution of the embodiment of the present invention can be with
Using any frequency range in unauthorized frequency range, there is no make improper restriction to the present invention to above-described embodiment.Preferably, uplink is adopted
It is transmitted with 2.4GHz or 3.5GHz, downlink uses 5.1GHz or 5.8GHz, and the frequency spectrum of unauthorized frequency range can either be made full use of to provide
Source, and can ensure the unification of uplink and downlink coverage area.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, Ke Yiwei
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of unit or module
It connects, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can for personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes: that USB flash disk, read-only memory (ROM, Read-OnlyMemory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic or disk etc. be various to can store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (16)
1. a kind of communication frequency selection method characterized by comprising
Interference Detection is carried out to multiple frequency ranges predetermined in unauthorized frequency range respectively, is obtained with the multiple frequency range one by one
Corresponding multiple current interference values；And
It is selected from the multiple frequency range according to the multiple current interference value for using frequency division duplex mode to be communicated
Uplink band and band downlink；
Interference Detection is being carried out to multiple frequency ranges predetermined in unauthorized frequency range respectively, is being obtained and the multiple frequency range one
After one corresponding multiple current interference values, the method also includes: inquiry and the multiple current interference value one are a pair of respectively
The multiple corrected parameters answered；The multiple current interference value is modified respectively using the multiple corrected parameter, wherein institute
Each corrected parameter in multiple corrected parameters is stated to be used to be modified corresponding current interference value；
It is selected from the multiple frequency range according to the multiple current interference value for using frequency division duplex mode to be communicated
Uplink band and band downlink include: to be selected from the multiple frequency range for using according to revised multiple current interference values
The uplink band and band downlink that frequency division duplex mode is communicated.
2. the method according to claim 1, wherein inquiring to obtain being utilized respectively the multiple current interference value
Before the multiple current interference value correspondingly multiple corrected parameters, the method also includes:
By carrying out simulation calculation to the multiple frequency range, obtained multiple theoretical interference values, wherein the multiple frequency range
In each frequency range correspond to multiple theoretical interference values；
By carrying out Interference Detection to the multiple frequency range, obtains the multiple frequency range and measure interference value correspondingly；
According to pre-set correction algorithm according to the corresponding multiple theoretical interference values of each frequency range and each described frequency range
The corresponding corrected parameter for measuring interference value and each frequency range being calculated.
3. the method according to claim 1, wherein be utilized respectively the multiple current interference value inquire to obtain with
Multiple corrected parameters include: the multiple current interference value correspondingly
The disturbed condition of the multiple frequency range is determined respectively；
Inquiry under the disturbed condition with the multiple current interference value multiple corrected parameters correspondingly.
4. method according to any one of claims 1 to 3, which is characterized in that the multiple frequency range is in unauthorized frequency range
Upper symmetrical multiple uplink and downlink frequency ranges predetermined,
Interference Detection is carried out to multiple frequency ranges predetermined in unauthorized frequency range respectively, is obtained with the multiple frequency range one by one
Corresponding multiple current interference values include: to multiple uplink bands predetermined in unauthorized frequency range or predetermined more
A band downlink carries out Interference Detection respectively, obtains multiple current interference values；
It is selected from the multiple frequency range according to the multiple current interference value for using frequency division duplex mode to be communicated
Uplink band and band downlink include: the smallest upper line frequency of current interference value in selection multiple uplink bands predetermined
The smallest band downlink of current interference value in section and its symmetrical band downlink or multiple band downlinks predetermined
And its symmetrical uplink band.
5. method according to any one of claims 1 to 3, which is characterized in that the multiple frequency range is in unauthorized frequency range
Upper symmetrical multiple uplink and downlink frequency ranges predetermined,
Interference Detection is carried out to multiple frequency ranges predetermined in unauthorized frequency range respectively, is obtained with the multiple frequency range one by one
Corresponding multiple current interference values include: to multiple uplink bands predetermined in unauthorized frequency range and predetermined more
A band downlink carries out Interference Detection respectively, obtains multiple current interference values；
It is selected from the multiple frequency range according to the multiple current interference value for using frequency division duplex mode to be communicated
Uplink band and band downlink include: that average interference value is most in selection symmetrical multiple uplink and downlink frequency ranges predetermined
Small symmetrical uplink and downlink frequency range, wherein the average interference value is that uplink band is corresponding in the multiple uplink and downlink frequency range
Current interference value current interference value corresponding with its symmetrical band downlink average value.
6. method according to any one of claims 1 to 3, which is characterized in that the multiple frequency range is in unauthorized frequency range
Upper asymmetrical multiple uplink bands predetermined and multiple band downlinks,
Interference Detection is carried out to multiple frequency ranges predetermined in unauthorized frequency range respectively, is obtained with the multiple frequency range one by one
Corresponding multiple current interference values include: to multiple uplink bands predetermined described in unauthorized frequency range and it is described in advance
Multiple band downlinks of definition carry out Interference Detection respectively, obtain multiple current interference values；
It is selected from the multiple frequency range according to the multiple current interference value for using frequency division duplex mode to be communicated
Uplink band and band downlink include: to select corresponding current interference value in multiple uplink bands predetermined the smallest
The corresponding current the smallest band downlink of interference value in uplink band and multiple band downlinks predetermined.
7. method according to any one of claims 1 to 3, which is characterized in that the multiple frequency range is asymmetrical frequency range,
Interference Detection is carried out to multiple frequency ranges predetermined in unauthorized frequency range respectively, is obtained with the multiple frequency range one by one
Corresponding multiple current interference values include: according to pre-set Duplex Spacing frequency determined from multiple frequency ranges it is all it is upper,
Band downlink combination；Uplink interference detections are carried out to all uplink bands in all uplink and downlink frequency ranges combination, are obtained and institute
State the one-to-one multiple current uplink interference values of all uplink bands；
Downlink Interference Detection is carried out to all band downlinks in all uplink and downlink frequency range combinations；Obtain with it is described it is all under
Line frequency section multiple current downlink interference values correspondingly；
It is selected from the multiple frequency range according to the multiple current interference value for using frequency division duplex mode to be communicated
Uplink band and band downlink include: from the uplink and downlink frequency range combination selection the smallest upper and lower line frequency of average interference value determined
Duan Zuhe, wherein the average interference value be in the uplink and downlink frequency range combination determined uplink band it is corresponding it is current on
The average value of row interference value current downlink interference value corresponding with band downlink.
8. method according to any one of claims 1 to 3, which is characterized in that the multiple frequency range is asymmetrical frequency range,
Interference Detection is carried out to multiple frequency ranges predetermined in unauthorized frequency range respectively, is obtained with the multiple frequency range one by one
Corresponding multiple current interference values include: according to pre-set Duplex Spacing frequency determined from multiple frequency ranges it is all it is upper,
Band downlink combination；Uplink interference detections are carried out to all uplink bands in all uplink and downlink frequency ranges combination, are obtained and institute
State the one-to-one multiple current uplink interference values of all uplink bands；
Downlink Interference Detection is carried out to all band downlinks in all uplink and downlink frequency range combinations；Obtain with it is described it is all under
Line frequency section multiple current downlink interference values correspondingly；
It is selected from the multiple frequency range according to the multiple current interference value for using frequency division duplex mode to be communicated
Uplink band and band downlink include: dry from the corresponding current uplink of uplink and downlink frequency range combination selection uplink band determined
Value the smallest uplink and downlink frequency range combination is disturbed, alternatively, band downlink is corresponding works as from the uplink and downlink frequency range combination selection determined
The preceding the smallest uplink and downlink frequency range combination of downlink interference value.
9. a kind of communication frequency selection device characterized by comprising
First detection unit is obtained for carrying out Interference Detection respectively to multiple frequency ranges predetermined in unauthorized frequency range
With the one-to-one multiple current interference values of the multiple frequency range；And
Selecting unit, for being selected from the multiple frequency range according to the multiple current interference value for using frequency division duplex side
The uplink band and band downlink that formula is communicated；
Query unit, for carrying out Interference Detection respectively to multiple frequency ranges predetermined in unauthorized frequency range, obtain with
After the one-to-one multiple current interference values of the multiple frequency range, inquiry is corresponded with the multiple current interference value respectively
Multiple corrected parameters；
Amending unit, for being modified respectively to the multiple current interference value using the multiple corrected parameter, wherein institute
Each corrected parameter in multiple corrected parameters is stated to be used to be modified corresponding current interference value；
Wherein, the selecting unit is also used to select to be used for from the multiple frequency range according to revised multiple current interference values
The uplink band and band downlink communicated using frequency division duplex mode.
10. device according to claim 9, which is characterized in that described device further include:
Simulation unit, for inquiring to obtain with the multiple current interference value one by one being utilized respectively the multiple current interference value
Before corresponding multiple corrected parameters, by carrying out simulation calculation to the multiple frequency range, obtained multiple theoretical interference
Value, wherein each frequency range corresponds to multiple theoretical interference values in the multiple frequency range；
Second detection unit, for obtaining the multiple frequency range and corresponding by carrying out Interference Detection to the multiple frequency range
Measure interference value；
Computing unit is used for according to pre-set correction algorithm according to the corresponding multiple theoretical interference values of each frequency range and institute
State the corresponding corrected parameter for measuring interference value and each frequency range being calculated of each frequency range.
11. device according to claim 9, which is characterized in that the query unit includes:
First determining module, for determining the disturbed condition of the multiple frequency range respectively；
Enquiry module is joined under the disturbed condition with the one-to-one multiple amendments of the multiple current interference value for inquiring
Number.
12. according to the described in any item devices of claim 9 to 11, which is characterized in that the multiple frequency range is in unauthorized frequency
Symmetrical multiple uplink and downlink frequency ranges predetermined in section,
The first detection unit is also used to multiple uplink bands predetermined in unauthorized frequency range or predetermined
Multiple band downlinks carry out Interference Detection respectively, obtain multiple current interference values；
The selecting unit is also used to select the current the smallest upper line frequency of interference value in multiple uplink bands predetermined
The smallest band downlink of current interference value in section and its symmetrical band downlink or multiple band downlinks predetermined
And its symmetrical uplink band.
13. according to the described in any item devices of claim 9 to 11, which is characterized in that the multiple frequency range is in unauthorized frequency
Symmetrical multiple uplink and downlink frequency ranges predetermined in section,
The first detection unit is also used to multiple uplink bands predetermined in unauthorized frequency range and predetermined
Multiple band downlinks carry out Interference Detection respectively, obtain multiple current interference values；
The selecting unit is also used to select average interference value in symmetrical multiple uplink and downlink frequency ranges predetermined minimum
Symmetrical uplink and downlink frequency range, wherein the average interference value be the multiple uplink and downlink frequency range in uplink band it is corresponding
The average value of current interference value current interference value corresponding with its symmetrical band downlink.
14. according to the described in any item devices of claim 9 to 11, which is characterized in that the multiple frequency range is in unauthorized frequency
Asymmetrical multiple uplink bands predetermined and multiple band downlinks in section,
The first detection unit is also used to multiple uplink bands predetermined described in unauthorized frequency range and described pre-
The multiple band downlinks first defined carry out Interference Detection respectively, obtain multiple current interference values；
The selecting unit is also used to select corresponding current interference value in multiple uplink bands predetermined the smallest
The corresponding current the smallest band downlink of interference value in uplink band and multiple band downlinks predetermined.
15. according to the described in any item devices of claim 9 to 11, which is characterized in that the multiple frequency range is asymmetrical frequency
Section,
The first detection unit includes: the second determining module, for according to pre-set Duplex Spacing frequency from multiple frequencies
All uplink and downlink frequency range combinations are determined in section；First detection module, for institute in all uplink and downlink frequency range combinations
There is uplink band to carry out uplink interference detection, obtains and the one-to-one multiple current uplink interferences of all uplink bands
Value；Second detection module, for carrying out downlink Interference Detection to all band downlinks in all uplink and downlink frequency range combinations,
It obtains and all band downlinks multiple current downlink interference values correspondingly；
The selecting unit is also used to from the uplink and downlink frequency range combination selection the smallest upper and lower line frequency of average interference value determined
Duan Zuhe, wherein the average interference value be in the uplink and downlink frequency range combination determined uplink band it is corresponding it is current on
The average value of row interference value current downlink interference value corresponding with band downlink.
16. according to the described in any item devices of claim 9 to 11, which is characterized in that the multiple frequency range is asymmetrical frequency
Section,
The first detection unit includes: third determining module, for according to pre-set Duplex Spacing frequency from multiple frequencies
All uplink and downlink frequency range combinations are determined in section；Third detection module, for institute in all uplink and downlink frequency range combinations
There is uplink band to carry out uplink interference detection, obtains and the one-to-one multiple current uplink interferences of all uplink bands
Value；4th detection module, for carrying out downlink Interference Detection to all band downlinks in all uplink and downlink frequency range combinations,
It obtains and all band downlinks multiple current downlink interference values correspondingly；
The selecting unit is also used to from the corresponding current uplink interference of uplink and downlink frequency range combination selection uplink band determined
It is worth the smallest uplink and downlink frequency range combination, alternatively, corresponding current from the uplink and downlink frequency range combination selection band downlink determined
The smallest uplink and downlink frequency range combination of downlink interference value.
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| CN107295544B (en) * | 2016-09-27 | 2021-01-01 | 京信通信系统（中国）有限公司 | Self-optimization method and device for working frequency points of base station |
| CN108391276B (en) * | 2018-02-08 | 2021-07-27 | 武汉虹信科技发展有限责任公司 | Private network base station and configuration method and device thereof |
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| US6128473A (en) * | 1997-12-22 | 2000-10-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for frequency plan revision within a cellular telephone system using downlink interference estimates |
| JP2006094003A (en) * | 2004-09-22 | 2006-04-06 | Ntt Docomo Inc | Mobile communication system, apparatus and method for allocating frequency band |
| JP4619077B2 (en) * | 2004-09-22 | 2011-01-26 | 株式会社エヌ・ティ・ティ・ドコモ | Frequency band allocation device |
| CN100502532C (en) * | 2005-04-29 | 2009-06-17 | 北京邮电大学 | Asymmetric FDD transmitting system and method |
| CN101459450B (en) * | 2007-12-14 | 2013-04-17 | 华为技术有限公司 | Method and device for acquiring signal-noise ratio |
| CN102256258B (en) * | 2010-05-19 | 2013-11-20 | 中国移动通信集团公司 | Allocation method for carrier frequency resource and allocation device for carrier frequency resource |
| US20150043520A1 (en) * | 2011-11-17 | 2015-02-12 | Broadcom Corporation | Methods and Apparatuses for Provision of Reference Signal Design for Downlink Tracking in Occupied Shared Band |
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| CN104507108B (en) * | 2014-12-19 | 2019-03-08 | 宇龙计算机通信科技(深圳)有限公司 | The instruction of channel clear or method for obligating resource, system, terminal and base station |
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