CN106972897A - The spectrum scan method that becomes more meticulous based on simple internet-of-things terminal - Google Patents
The spectrum scan method that becomes more meticulous based on simple internet-of-things terminal Download PDFInfo
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- CN106972897A CN106972897A CN201710176053.2A CN201710176053A CN106972897A CN 106972897 A CN106972897 A CN 106972897A CN 201710176053 A CN201710176053 A CN 201710176053A CN 106972897 A CN106972897 A CN 106972897A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of spectrum scan method that becomes more meticulous based on simple internet-of-things terminal, by sending information on transmission spectrum, wake up terminal in a dormant state, receive the wireless messages sent, information to the reception on the transmission spectrum of reception is analyzed, the estimation of the intensity of the receive information is determined, direct scan is performed on the frequency spectrum of transmission channel frequency, the transmission channel in the transmission spectrum is recognized.The present invention is small to the technology inter-carrier interference of the frequency spectrum of base station, and the overhead and time delay of feedback control information are smaller, greatly improve the utilization rate of system.
Description
Technical field
The invention belongs to wireless communication technology field.Specifically related to a kind of frequency spectrum that becomes more meticulous based on simple internet-of-things terminal
Scan method.
Background technology
Continuous frequency spectrum is that frequency content frequency spectrum spectrum analyses continuously distributed in the range of given frequency are usually to one section
Signal in time is sampled and carries out Fourier transformation, and obtained frequency spectrum is probably continuous, it is also possible to single or disconnected
Continuous spectrum scans are that each frequency in certain frequency range is filtered, and find its amplitude size to time unlimited short signal
Carry out spectrum analysis, obtain be instantaneous spectrum for example：When signal is made up of the composition of two different frequencies, continuous frequency
Analysis of spectrum can obtain the composition of two different frequencies, and spectrum scan can find two different frequencies included in signal successively
Composition, instantaneous spectrum is then a kind of frequency content all different from above-mentioned two frequency.
Application No. CN201310116578.9, it is entitled《Method and apparatus for the spectrum scan in network》It is special
Profit, the Utilizing Rate on channel can be high due to many wireless activities for including interference on the frequency spectrum.So
Wireless activity can increase packet error probability (PER) and/or cause provide wireless service it is more difficult.Medium state refers to wherein
In the situation for showing high Utilizing Rate, more radio resource can be distributed for wireless service and less frequency spectrum can be performed
Scanning.In other embodiments, more radical spectrum scan can be performed any classification of disturbance is used to relax.But, base station
Frequency spectrum technology inter-carrier interference it is big, the overhead and time delay of feedback control information are larger so that the utilization rate drop of system
It is low.
The content of the invention
The invention aims to overcome a kind of above-mentioned not enough frequency spectrum that becomes more meticulous based on simple internet-of-things terminal of offer
Scan method.
A kind of spectrum scan method that becomes more meticulous based on simple internet-of-things terminal, comprises the following steps:
Send information on transmission spectrum, wake up terminal in a dormant state；
Receive the wireless messages sent；
Information to the reception on the transmission spectrum of reception is analyzed, and determines the estimation of the intensity of the receive information；
According to the estimation of the intensity of the receive information, determine whether the terminal enters the access scope of base station；
If the terminal enters the access scope of the base station, spectrum scan controller stops spectrum scan, is institute
State the report of end print frequency spectrum；
If the terminal does not enter into the access scope of base station, execution orientation is swept on the frequency spectrum of transmission channel frequency
Retouch, recognize the transmission channel in the transmission spectrum.
Further, the information of the reception on the transmission spectrum of described pair of reception is analyzed, and determines the receive information
The step of estimation of intensity is specially：
Differential coding is carried out to the information on the transmission spectrum of reception；
Level conversion is carried out, -1 is obtained ,+1 yard of information；
Edge check is performed, the intensity of the information of the reception is searched for using Edge check；
Determine the threshold values up and down of the intensity of the information of the reception；
Region between the threshold values up and down of the intensity of the information of the reception is the estimation of the intensity of the receive information.
Further, it is described to send information on transmission spectrum, after the step of the terminal of wake-up in a dormant state：
One subcarrier of selection sends to enter row information；
After a subcarrier is selected, determine whether that other terminals send information on this subcarrier, if do not had
Have, just directly transmit information；If other terminals send information on this subcarrier, subcarrier is just reselected.
Further, the region between the threshold values up and down of the intensity of the information of the reception is the intensity of the receive information
In the step of estimation：
The estimation of the intensity of the receive information is subjected to data preparation and data storage is carried out；
Data to storage carry out FFT；
Export FFT result；
Final result output is carried out according to FFT output datas order.
Further, a subcarrier is selected to enter during row information transmission：
It is multiple subcarriers by the spectral decomposition, when a terminal needs to send information, just automatically selects one
Individual subcarrier is transmitted, it is ensured that when many terminals will send information, the possibility of only minimum collision.
The present invention wakes up terminal in a dormant state by sending information on transmission spectrum, receives the nothing sent
Line information, the information to the reception on the transmission spectrum of reception is analyzed, and determines the estimation of the intensity of the receive information,
Direct scan is performed on the frequency spectrum of transmission channel frequency, the transmission channel in the transmission spectrum is recognized.The present invention is to base station
The technology inter-carrier interference of frequency spectrum is small, and the overhead and time delay of feedback control information are smaller, greatly improve the utilization rate of system.
Brief description of the drawings
Fig. 1 is the inventive method schematic flow sheet.
Embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated：
A kind of spectrum scan method that becomes more meticulous based on simple internet-of-things terminal, comprises the following steps:
Send information on transmission spectrum, wake up terminal in a dormant state；
Receive the wireless messages sent；
Information to the reception on the transmission spectrum of reception is analyzed, and determines the estimation of the intensity of the receive information；
According to the estimation of the intensity of the receive information, determine whether the terminal enters the access scope of base station；
If the terminal enters the access scope of the base station, spectrum scan controller stops spectrum scan, is institute
State the report of end print frequency spectrum；
If the terminal does not enter into the access scope of base station, execution orientation is swept on the frequency spectrum of transmission channel frequency
Retouch, recognize the transmission channel in the transmission spectrum.
The information of reception on the transmission spectrum of described pair of reception analyzes, and determines that the intensity of the receive information is estimated
The step of meter is specially：
Differential coding is carried out to the information on the transmission spectrum of reception；
Level conversion is carried out, -1 is obtained ,+1 yard of information；
Edge check is performed, the intensity of the information of the reception is searched for using Edge check；
Determine the threshold values up and down of the intensity of the information of the reception；
Region between the threshold values up and down of the intensity of the information of the reception is the estimation of the intensity of the receive information.
It is described to send information on transmission spectrum, after the step of the terminal of wake-up in a dormant state：
One subcarrier of selection sends to enter row information；
After a subcarrier is selected, determine whether that other terminals send information on this subcarrier, if do not had
Have, just directly transmit information；If other terminals send information on this subcarrier, subcarrier is just reselected.
Region between the threshold values up and down of the intensity of the information of the reception is the estimation of the intensity of the receive information
In step：
The estimation of the intensity of the receive information is subjected to data preparation and data storage is carried out；
Data to storage carry out FFT；
Export FFT result；
Final result output is carried out according to FFT output datas order.
When one subcarrier of selection sends to enter row information：
It is multiple subcarriers by the spectral decomposition, when a terminal needs to send information, just automatically selects one
Individual subcarrier is transmitted, it is ensured that when many terminals will send information, the possibility of only minimum collision.
Claims (5)
1. a kind of spectrum scan method that becomes more meticulous based on simple internet-of-things terminal, it is characterised in that comprise the following steps:
Send information on transmission spectrum, wake up terminal in a dormant state；
Receive the wireless messages sent；
Information to the reception on the transmission spectrum of reception is analyzed, and determines the estimation of the intensity of the receive information；
According to the estimation of the intensity of the receive information, determine whether the terminal enters the access scope of base station；
If the terminal enters the access scope of the base station, spectrum scan controller stops spectrum scan, is the end
End printing frequency spectrum report；
If the terminal does not enter into the access scope of base station, direct scan is performed on the frequency spectrum of transmission channel frequency,
Recognize the transmission channel in the transmission spectrum.
2. the spectrum scan method that becomes more meticulous according to claim 1 based on simple internet-of-things terminal, it is characterised in that institute
The information for stating the reception on the transmission spectrum to reception is analyzed, determine the receive information intensity estimation the step of have
Body is：
Differential coding is carried out to the information on the transmission spectrum of reception；
Level conversion is carried out, -1 is obtained ,+1 yard of information；
Edge check is performed, the intensity of the information of the reception is searched for using Edge check；
Determine the threshold values up and down of the intensity of the information of the reception；
Region between the threshold values up and down of the intensity of the information of the reception is the estimation of the intensity of the receive information.
3. the spectrum scan method that becomes more meticulous according to claim 2 based on simple internet-of-things terminal, it is characterised in that institute
State and send information on transmission spectrum, after the step of the terminal of wake-up in a dormant state：
One subcarrier of selection sends to enter row information；
After a subcarrier is selected, determine whether that other terminals send information on this subcarrier, if not provided, just
Directly transmit information；If other terminals send information on this subcarrier, subcarrier is just reselected.
4. the spectrum scan method that becomes more meticulous according to claim 3 based on simple internet-of-things terminal, it is characterised in that institute
In the step of region between the threshold values up and down for the intensity for stating the information of reception is the estimation of the intensity of the receive information：
The estimation of the intensity of the receive information is subjected to data preparation and data storage is carried out；
Data to storage carry out FFT；
Export FFT result；
Final result output is carried out according to FFT output datas order.
5. the spectrum scan method that becomes more meticulous according to claim 3 based on simple internet-of-things terminal, it is characterised in that choosing
A subcarrier is selected to enter during row information transmission：
It is multiple subcarriers by the spectral decomposition, when a terminal needs to send information, just automatically selects a son
Carrier wave is transmitted, it is ensured that when many terminals will send information, the possibility of only minimum collision.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710176053.2A CN106972897A (en) | 2017-03-23 | 2017-03-23 | The spectrum scan method that becomes more meticulous based on simple internet-of-things terminal |
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| CN201710176053.2A CN106972897A (en) | 2017-03-23 | 2017-03-23 | The spectrum scan method that becomes more meticulous based on simple internet-of-things terminal |
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| CN106972897A true CN106972897A (en) | 2017-07-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088687A (en) * | 2018-09-29 | 2018-12-25 | 中国科学院上海微系统与信息技术研究所 | A kind of spectrum scan mode configuration method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326305A (en) * | 2000-05-25 | 2001-12-12 | 阿尔卡塔尔公司 | Method for re-connecting radio communication terminal with network and terminal therefor |
| CN101836486A (en) * | 2007-10-22 | 2010-09-15 | 马维尔国际贸易有限公司 | Location aware background access point scanning for WLAN |
| CN102970065A (en) * | 2012-12-06 | 2013-03-13 | 大连凌波微联科技有限公司 | Method and device for controlling wireless communication range |
| CN103369634A (en) * | 2012-03-30 | 2013-10-23 | 丛林网络公司 | Methods and apparatus for spectral scanning within a network |
| CN105188116A (en) * | 2015-08-13 | 2015-12-23 | 武汉米风通信技术有限公司 | Method for automatically selecting frequency spectrum to perform uplink access by terminal |
-
2017
- 2017-03-23 CN CN201710176053.2A patent/CN106972897A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326305A (en) * | 2000-05-25 | 2001-12-12 | 阿尔卡塔尔公司 | Method for re-connecting radio communication terminal with network and terminal therefor |
| CN101836486A (en) * | 2007-10-22 | 2010-09-15 | 马维尔国际贸易有限公司 | Location aware background access point scanning for WLAN |
| CN103369634A (en) * | 2012-03-30 | 2013-10-23 | 丛林网络公司 | Methods and apparatus for spectral scanning within a network |
| CN102970065A (en) * | 2012-12-06 | 2013-03-13 | 大连凌波微联科技有限公司 | Method and device for controlling wireless communication range |
| CN105188116A (en) * | 2015-08-13 | 2015-12-23 | 武汉米风通信技术有限公司 | Method for automatically selecting frequency spectrum to perform uplink access by terminal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088687A (en) * | 2018-09-29 | 2018-12-25 | 中国科学院上海微系统与信息技术研究所 | A kind of spectrum scan mode configuration method |
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Application publication date: 20170721 |
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