CN104768159B - A kind of frequency point selecting method and device - Google Patents
A kind of frequency point selecting method and device Download PDFInfo
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- CN104768159B CN104768159B CN201410001183.9A CN201410001183A CN104768159B CN 104768159 B CN104768159 B CN 104768159B CN 201410001183 A CN201410001183 A CN 201410001183A CN 104768159 B CN104768159 B CN 104768159B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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Abstract
The invention discloses a kind of frequency point selecting method, this method includes：Base station determines the interference value of the server terminal of certain cell at moment, and if less than the first threshold value, then base station continues to work in current frequency point；Otherwise, alien frequencies detection is carried out, determines to receive the minimum frequency point of power, and determines whether to switch frequency point work according to the difference of the frequency point of the work at present frequency point minimum with receiving power.Based on same inventive concept, the present invention also proposes a kind of device, can efficiently use frequency resource, improves system effectiveness.
Description
Technical field
The present invention relates to field of communication technology, more particularly to a kind of frequency point selecting method and device.
Background technology
With the continuous development of wireless broad band technology, the available frequency spectrum resource of wireless system is increasingly abundanter, more than 100M
Broadband system become wireless communication system development trend.
When the system of multiple base stations and multiple users is performed for more than the wide-band networking of 100M, in order to efficiently use frequency money
Source, the selection of frequency point are most important.
It for base station and user, is limited by radio frequency and base station processing capacity, is preferably selected often each base station choosing
It selects 1 frequency point to be sent or transmitted, different base station selects different frequency points, so as to effectively avoid inter base station interference, maximizes
System availability.
In actual Long Term Evolution (LTE) system, the dynamic select of carrier wave should be disturbed by current frequency point, is other
Frequency point disturbed condition can be used to determine.When base station is in running order, same frequency point cannot be carried out at the same time transmission in synchronization
And reception, the frequency point interference monitoring if base station is periodically worked, the sending time of base station can be undoubtedly reduced, is imitated so as to reduce system
Rate.
The content of the invention
In view of this, the present invention provides a kind of frequency point selecting method and device, can efficiently use frequency resource, improves system
System efficiency.
In order to solve the above technical problems, the technical proposal of the invention is realized in this way：
A kind of frequency point selecting method, applied on the base station in LTE system, base station receives each service terminal in cell and reports
CQI, calculate average channel quality and record of each service terminal at each moment in the cell, the described method includes：
A, base station obtains in the cell and services eventually according to each service terminal of record in the average channel quality of synchronization
Hold the interference value at the moment；
B, the base station determines whether interference value is less than the first threshold value, if so, performing step G；Otherwise, step C is performed；
C, the base station carries out pilot frequency point detection and determines to receive the minimum frequency point of power to the available frequency point of configuration；
D, the base station determines to receive whether the minimum frequency point of power is the frequency point of this base station work at present, if so, performing
Step G；Otherwise, step E is performed；
E, the base station calculates the frequency point of this base station work at present and the definite difference for receiving the minimum frequency point of power, determines
Whether the difference is more than the second threshold value, if so, performing step F；Otherwise, step G is performed；
F, the working frequency points of this base station are switched to the definite minimum frequency point of power that receives and worked by the base station, terminate this stream
Journey；
G, the base station continues to work in the frequency point of work at present.
A kind of device can be applied to the base station in LTE system, which includes：Recording unit, acquiring unit determine list
Member and processing unit；
The recording unit for receiving the CQI that each service terminal reports in cell, calculates each service terminal in the cell
In the average channel quality and record at each moment；
The acquiring unit, for each service terminal according to the recording unit records synchronization average channel
Quality obtains in the cell service terminal in the interference value at the moment；
The determination unit, for determining whether the interference value that the acquiring unit obtains is less than the first threshold value；It determines
The minimum frequency point of reception power that the processing unit determines whether be this base station work at present frequency point；Determine that the processing is single
Whether the difference that member calculates is more than the second threshold value；
The processing unit, for when the determination unit determine interference value be less than the first thresholding when or the definite list
When member determines that the difference calculated is not more than the second threshold value, continue the frequency point work in work at present；When the determination unit is true
When determining interference value not less than the first thresholding, to the available frequency point of configuration, carry out pilot frequency point detection and determine to receive the minimum frequency of power
Point；When the determination unit determines that it is not the frequency point of this base station work at present to receive the minimum frequency point of power, this base station is calculated
The frequency point of work at present and the difference for receiving the minimum frequency point of power determined；When the determination unit determines that the difference calculated is big
When the second threshold value, the working frequency points of this base station are switched to the definite minimum frequency point of power that receives and are worked.
In conclusion the present invention determines the interference value of the server terminal of certain cell by base station at moment, if less than
First threshold value, then base station continuation work in current frequency point；Otherwise, alien frequencies detection is carried out, determines to receive the minimum frequency point of power,
And determine whether to switch frequency point work according to the difference of the frequency point of the work at present frequency point minimum with receiving power, it can be effectively sharp
With frequency resource, system effectiveness is improved.
Description of the drawings
Fig. 1 is specific embodiment of the invention intermediate frequency point selection flow diagram；
Fig. 2 is the apparatus structure schematic diagram for being applied to above-mentioned technology in the specific embodiment of the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, develop simultaneously embodiment referring to the drawings, right
Scheme of the present invention is described in further detail.
It is proposed a kind of LTE system intermediate-frequeney point selection method in the embodiment of the present invention, base station determines the clothes of certain cell at moment
The interference value for device terminal of being engaged in, if less than the first threshold value, then base station continuation works in current frequency point；Otherwise, alien frequencies inspection is carried out
It surveys, determines to receive the minimum frequency point of power, and determined according to the difference of the frequency point of the work at present frequency point minimum with receiving power
Whether switch frequency point work, frequency resource can be efficiently used, improve system effectiveness.
Base station receives the channel quality indicator (CQI) that each service terminal reports in cell, calculates and is respectively serviced in the cell
Terminal is in the average channel quality and record at each moment.
It is for average channel quality computational methods of any service terminal in moment t：
The service terminal the putting down at the t-1 moment of the CQI that the service terminal that base station receives moment t reports and record
Equal channel quality is weighted and sums according to preset weights, the average channel quality as the moment t service terminal.
Assuming that service terminal n is C in the COI that t moment reportsn(t), the average channel quality at the t-1 moment of record isPreset weights are s, then service terminal n is in the average channel quality of t momentIt calculates as follows：
Wherein, S is the weights less than 1 more than 0, is configured according to practical application.
Referring to Fig. 1, Fig. 1 is specific embodiment of the invention intermediate frequency point selection flow diagram.It concretely comprises the following steps：
Step 101, base station is obtained according to each service terminal of record in the average channel quality of synchronization in the cell
Service terminal is in the interference value at the moment.
This step is specially in the average value of the average channel quality at the moment, work by each service terminal of the cell of record
For the cell serves terminal the moment interference value.
It can obtain in the cycle that base station, which obtains interference value, that is, configures predetermined period then, obtain interference value.Predetermined period bag
Multiple moment are included, the average channel quality for each service terminal of selection sometime that can sample is calculated, i.e., using same
The average channel of each service terminal at moment continues to calculate.
Base station can also obtain in real time when obtaining interference value, i.e., each moment obtains an interference value.
During specific implementation, can be determined how long obtain an interference value according to concrete application environment and hardware.
Assuming that obtain is the interference value I of service terminal in the t moment cellAverage, and the service terminal in the cell
To be N number of, then
Wherein,For n-th of service terminal t moment average channel quality value.
Step 102, base station determines whether interference value is less than the first threshold value, if so, performing step 107；Otherwise, perform
Step 103.
First threshold value is configured according to practical application.
Step 103, which carries out pilot frequency point detection and determines to receive the minimum frequency point of power to the available frequency point of configuration.
When can be measured to the difference of configuration with the interference of frequency point, LTE system first subframe of downlink is configured, is monitored each
The total received power of frequency point can be used, and be sent without using first subframe of the downlink.
The total received power of each available frequency point is monitored, and the total received power of each available frequency point listened to is compared
Compared with definite to receive the minimum frequency point of power.
Step 104, the base station determine to receive the minimum frequency point of power whether be this base station work at present frequency point, if
It is to perform step 107；Otherwise, step 105 is performed.
Step 105, the difference for receiving the minimum frequency point of power which calculates the frequency point of this base station work at present and determine
Value, determines whether the difference is more than the second threshold value, if so, performing step 106；Otherwise, step 107 is performed.
Second threshold value is configured according to practical situations.
Step 106, which is switched to the definite minimum frequency point of power that receives by the working frequency points of this base station and works, knot
This flow of beam.
Step 107, which continues to work in the frequency point of work at present.
Based on same inventive concept, the application also proposes a kind of device.Referring to Fig. 2, Fig. 2 is the specific embodiment of the invention
In be applied to above-mentioned technology apparatus structure schematic diagram.The device includes：Recording unit 201, acquiring unit 202, determination unit
203 and processing unit 204.
Recording unit 201 for receiving the CQI that each service terminal reports in cell, calculates each service terminal in the cell
In the average channel quality and record at each moment.
Acquiring unit 202, for according to each service terminal that recording unit 201 records synchronization average channel matter
Amount obtains in the cell service terminal in the interference value at the moment.
Determination unit 203, for determining whether the interference value that acquiring unit 202 obtains is less than the first threshold value；Determine place
The definite minimum frequency point of reception power of reason unit 204 whether be this base station work at present frequency point；Determine that processing unit 204 is counted
Whether the difference of calculation is more than the second threshold value.
Processing unit 204, for when determination unit 203 determines that interference value is less than the first thresholding or determination unit 203 is true
When the difference that devise a stratagem is calculated is not more than the second threshold value, continue the frequency point work in work at present；When determination unit 203 determines interference
When value is not less than the first thresholding, to the available frequency point of configuration, carries out pilot frequency point detection and determine to receive the minimum frequency point of power；When true
When order member 203 determines that it is not the frequency point of this base station work at present to receive the minimum frequency point of power, this base station work at present is calculated
Frequency point and the difference for receiving the minimum frequency point of power that determines；When determination unit 203 determines that the difference calculated is more than second
During limit value, the working frequency points of this base station are switched to the definite minimum frequency point of power that receives and are worked.
It is preferred that
Processing unit 204, specifically in the available frequency point to configuration, progress pilot frequency point detection determines that reception power is minimum
Frequency point when, when can be measured to difference with the interference of frequency point, configure LTE system first subframe of downlink, monitor each available
The total received power of frequency point, and sent without using first subframe of the downlink；The total received power of each available frequency point is monitored,
And be compared the total received power of each available frequency point listened to, it determines to receive the minimum frequency point of power.
It is preferred that
Acquiring unit 202, specifically for each service terminal of the cell that will record the moment average channel quality
Average value, as the cell serves terminal the moment interference value.
It is preferred that
Recording unit 201 is somebody's turn to do specifically for the CQI that the service terminal that base station receives moment t reports with what is recorded
Average channel quality of the service terminal at the t-1 moment is weighted and sums according to preset weights, as the moment t service terminals
Average channel quality.
The unit of above-described embodiment can be integrated in one, and can also be deployed separately；A unit is can be merged into, also may be used
To be further split into multiple subelements.
In conclusion the present invention determines the interference value of the server terminal of certain cell by base station at moment, if less than
First threshold value, then base station continuation work in current frequency point；Otherwise, alien frequencies detection is carried out, determines to receive the minimum frequency point of power,
And determine whether to switch frequency point work according to the difference of the frequency point of the work at present frequency point minimum with receiving power.It is of the invention specific
Do not pass through interference monitoring in embodiment, it becomes possible to obtain operating point interference information, therefore, it is possible to efficiently use frequency resource, carry
High system effectiveness.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modifications, equivalent replacements and improvements are made should be included in the protection of the present invention
Within the scope of.
Claims (8)
1. a kind of frequency point selecting method, applied on the base station in Long Term Evolution LTE system, which is characterized in that base station receives small
The channel quality indicator CQI that each service terminal reports in area calculates in the cell each service terminal in the average letter at each moment
Road quality simultaneously records, the described method includes：
A, base station obtains service terminal in the cell and exists according to each service terminal of record in the average channel quality of synchronization
The interference value at the moment；
B, the base station determines whether interference value is less than the first threshold value, if so, performing step G；Otherwise, step C is performed；
C, the base station carries out pilot frequency point detection and determines to receive the minimum frequency point of power to the available frequency point of configuration；
D, the base station determines to receive whether the minimum frequency point of power is the frequency point of this base station work at present, if so, performing step
G；Otherwise, step E is performed；
E, the base station calculates the frequency point of this base station work at present and the definite difference for receiving the minimum frequency point of power, determines the difference
Whether value is more than the second threshold value, if so, performing step F；Otherwise, step G is performed；
F, the working frequency points of this base station are switched to the definite minimum frequency point of power that receives and worked by the base station, terminate this flow；
G, the base station continues to work in the frequency point of work at present.
2. according to the method described in claim 1, it is characterized in that, step C, including：
When can be measured to difference with the interference of frequency point, LTE system first subframe of downlink is configured, monitors each available frequency point
Total received power, and sent without using first subframe of the downlink；
The total received power of each available frequency point is monitored, and the total received power of each available frequency point listened to is compared, really
Surely the minimum frequency point of power is received.
3. according to the method described in claim 1, it is characterized in that, step A includes：
By each service terminal of the cell of record the average channel quality at the moment average value, as the cell serves terminal
In the interference value at the moment.
4. according to the method described in claim 1-3 any one, which is characterized in that each service terminal in described calculating cell
In the average channel quality at each moment, including：
The CQI and the service terminal of record that the service terminal that moment t is received reports are in the average channel matter at t-1 moment
Amount is weighted and sums according to preset weights, the average channel quality as the moment t service terminal.
5. a kind of frequency point selection device, can be applied to the base station in Long Term Evolution LTE system, which is characterized in that the device includes：
Recording unit, acquiring unit, determination unit and processing unit；
The recording unit for receiving the channel quality indicator CQI that each service terminal reports in cell, is calculated in the cell
Each service terminal is in the average channel quality and record at each moment；
The acquiring unit, for each service terminal according to the recording unit records synchronization average channel matter
Amount obtains in the cell service terminal in the interference value at the moment；
The determination unit, for determining whether the interference value that the acquiring unit obtains is less than the first threshold value；It determines described
The minimum frequency point of reception power that processing unit determines whether be this base station work at present frequency point；Determine the processing unit meter
Whether the difference of calculation is more than the second threshold value；
The processing unit, for when the determination unit determine interference value be less than the first thresholding when or the determination unit it is true
When the difference that devise a stratagem is calculated is not more than the second threshold value, continue the frequency point work in work at present；When the determination unit determines to do
When disturbing value not less than the first thresholding, to the available frequency point of configuration, carry out pilot frequency point detection and determine to receive the minimum frequency point of power；When
When the determination unit determines that it is not the frequency point of this base station work at present to receive the minimum frequency point of power, the current work in this base station is calculated
The frequency point of work and the difference for receiving the minimum frequency point of power determined；When the determination unit determines that the difference calculated is more than second
During threshold value, the working frequency points of this base station are switched to the definite minimum frequency point of power that receives and are worked.
6. device according to claim 5, which is characterized in that
The processing unit, specifically in the available frequency point to configuration, progress pilot frequency point detection determines that reception power is minimum
During frequency point, when can be measured to difference with the interference of frequency point, LTE system first subframe of downlink is configured, monitors each available frequency
The total received power of point, and sent without using first subframe of the downlink；The total received power of each available frequency point is monitored, and
The total received power of each available frequency point listened to is compared, determines to receive the minimum frequency point of power.
7. device according to claim 6, which is characterized in that
The acquiring unit, specifically for average channel quality of the cell each service terminal recorded at the moment is averaged
Value, as the cell serves terminal the moment interference value.
8. according to the device described in claim 5-7 any one, which is characterized in that
The recording unit, specifically for the service of the CQI that the service terminal that base station receives moment t reports and record
Average channel quality of the terminal at the t-1 moment is weighted and sums according to preset weights, as the flat of the moment t service terminal
Equal channel quality.
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| CN201410001183.9A CN104768159B (en) | 2014-01-02 | 2014-01-02 | A kind of frequency point selecting method and device |
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| CN104768159B true CN104768159B (en) | 2018-05-22 |
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| CN114301557B (en) * | 2021-12-16 | 2023-12-29 | 中国人民解放军国防科技大学 | Short wave frequency selection method and system based on combination of predictive data and historical data |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060094436A1 (en) * | 2004-11-04 | 2006-05-04 | Samsung Electronics Co., Ltd. | System and method for assigning a sub-channel in a BWA communication system |
| US20090252099A1 (en) * | 2007-11-27 | 2009-10-08 | Qualcomm Incorporated | Interference management in a wireless communication system using frequency selective transmission |
| CN101835162A (en) * | 2010-01-12 | 2010-09-15 | 工业和信息化部电信传输研究所 | Networking scheduling method and device in application process of different time slot proportions in different cells |
| CN102215494A (en) * | 2011-06-16 | 2011-10-12 | 熊猫电子集团有限公司 | Wireless resource allocation method for reducing system interference and applying in base station of wireless communication system |
-
2014
- 2014-01-02 CN CN201410001183.9A patent/CN104768159B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060094436A1 (en) * | 2004-11-04 | 2006-05-04 | Samsung Electronics Co., Ltd. | System and method for assigning a sub-channel in a BWA communication system |
| US20090252099A1 (en) * | 2007-11-27 | 2009-10-08 | Qualcomm Incorporated | Interference management in a wireless communication system using frequency selective transmission |
| CN101835162A (en) * | 2010-01-12 | 2010-09-15 | 工业和信息化部电信传输研究所 | Networking scheduling method and device in application process of different time slot proportions in different cells |
| CN102215494A (en) * | 2011-06-16 | 2011-10-12 | 熊猫电子集团有限公司 | Wireless resource allocation method for reducing system interference and applying in base station of wireless communication system |
Non-Patent Citations (2)
| Title |
|---|
| TD_SCDMA无线资源管理技术研究;张健丰;《上海交通大学工程硕士专业学位论文》;20111215;全文 * |
| 动态TDD LTE系统中基于小区分簇的干扰协调方案研究;龚碧梦，刘晓峰，高月红，张欣，杨大成;《现代电信科技》;20130825;全文 * |
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