CN106792726A - A kind of broadcasting and TV frequency spectrum ultra-narrow band Internet of Things frequency planning method - Google Patents
A kind of broadcasting and TV frequency spectrum ultra-narrow band Internet of Things frequency planning method Download PDFInfo
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- CN106792726A CN106792726A CN201710194745.XA CN201710194745A CN106792726A CN 106792726 A CN106792726 A CN 106792726A CN 201710194745 A CN201710194745 A CN 201710194745A CN 106792726 A CN106792726 A CN 106792726A
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- frequency
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—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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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention relates to a kind of broadcasting and TV frequency spectrum ultra-narrow band Internet of Things frequency planning method, including the frequency sequence in honeycomb is limited, only allow frequency to be arranged according to predefined procedure；Frequency-hopping sequences to terminal are intercepted, and interference are judged whether, if in the presence of interference, being planned frequency according to dispatching algorithm.Dispatching algorithm is specifically, the honeycomb of determination generation interference, a frequency in wherein any one cellular frequency-hopping sequences is deleted.The interference measure for asking specific terminal to provide CF is needed before recovery frequency, judges whether interference has disappeared according to interference measure, if interference has disappeared, frequency is planned again, the frequency of deletion is recovered.The present invention can reduce amount of calculation by carrying out limitation to the frequency hop sequences in honeycomb, take the mode for deleting the cellular frequency-hopping sequences of interference to plan frequency, can effectively eliminate interference.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of broadcasting and TV frequency spectrum ultra-narrow band Internet of Things frequency planning method.
Background technology
Existing frequency planning method is to be generally based on frequency partition channel.Each user communicates in a pair of channels.
If the composition for there are other signals is fallen into when in a channel band for receiver user, the interference to useful signal will be caused.If
In overall plan of network, frequency planning obtains bad, then can cause whole network build up or dilatation after some performance indications do not conform to will
Ask, the availability of frequency spectrum how is improved to greatest extent, lift network performance, be an important work in current network optimization
Make.At least there is problems with prior art：Only compatible portion equipment manufacturer data, data format requirement is complicated,
Various data are unable to Conjoint Analysis, verification, while the method and process of planning are complex, it is not easy to operate, and for height
Denser network and regional planning and response speed have deficiency, and above reason causes that existing technical products range of application is received
Limit, and the effect of planning is also affected.
The content of the invention
The technical problems to be solved by the invention are directed to above-mentioned the deficiencies in the prior art, there is provided a kind of broadcasting and TV frequency spectrum ultra-narrow
Band Internet of Things frequency planning method.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
A kind of broadcasting and TV frequency spectrum ultra-narrow band Internet of Things frequency planning method, including the frequency sequence in honeycomb is limited,
Frequency is only allowed to be arranged according to predefined procedure；Frequency-hopping sequences to terminal are intercepted, and interference are judged whether, if depositing
In interference, then frequency is planned according to dispatching algorithm.
Further, the dispatching algorithm is specially：It is determined that the honeycomb of interference is produced, will wherein any one cellular tune
A frequency in frequency sequence is deleted.
Further, the interference measure for asking specific terminal to provide CF is needed before recovery frequency, according to dry
Disturb measured value and judge whether interference has disappeared, if interference has disappeared, frequency is planned again, the frequency that will be deleted
Recovered.
Further, any one honeycomb is deleted before certain frequency from frequency hopping lists, it is necessary to notify network planning system.
Further, every prescribed time period carries out the primary system plan to frequency.
Further, the number of frequencies all same in all cellular frequency-hopping sequences.
Beneficial effects of the present invention are：Can reduce amount of calculation by carrying out limitation to the frequency hop sequences in honeycomb, take
Delete and disturb the mode of cellular frequency-hopping sequences to plan frequency, can effectively eliminate interference, every prescribed time period pair
Frequency carries out the primary system plan, the right times after eliminating can disturbed to recover frequency-hopping sequences.
Brief description of the drawings
Fig. 1 is broadcasting and TV frequency spectrum ultra-narrow of the invention band Internet of Things frequency planning method schematic diagram.
Specific embodiment
Principle of the invention and feature are described below in conjunction with accompanying drawing, example is served only for explaining the present invention, and
It is non-for limiting the scope of the present invention.
As shown in figure 1, a kind of broadcasting and TV frequency spectrum ultra-narrow band Internet of Things frequency planning method, including to the frequency sequence in honeycomb
Limited, only allow frequency to be arranged according to predefined procedure；Frequency-hopping sequences to terminal are intercepted, and are judged whether
Interference, if in the presence of interference, being planned frequency according to dispatching algorithm.
The dispatching algorithm is specially：It is determined that the honeycomb of interference is produced, will wherein in any one cellular frequency-hopping sequences
A frequency deleted.
The interference measure for asking specific terminal to provide CF is needed before recovery frequency, is sentenced according to interference measure
Whether trunk snap is disturbed and has been disappeared, if interference has disappeared, frequency is planned again, and the frequency of deletion is recovered.
Any one honeycomb is deleted before certain frequency from frequency hopping lists, it is necessary to notify network planning system.
Every prescribed time period carries out the primary system plan to frequency.
Number of frequencies all same in all cellular frequency-hopping sequences.
Frequency planning problem is more complicated problem.Ideally adjacent cell should work at different frequencies
Make.It is in the downlink possible, can be received from the transmission in adjacent cell in the terminal at cellular edge
Interference.In the uplink, the interference due to base station to base station can cause the dislocation of tdd frame, seriously threaten base station.This be because
For different base stations can select different TDD timeslices according to flow in honeycomb.So, a signal for Base Transmitter
Received by another base station.Propagation from base station to another base station is often relatively good because both can compared with
Position high, it could even be possible to being within sighting distance.Therefore, different frequencies is used as far as possible in adjacent cell.Each honeycomb has
One group come frequency spectrum data storehouse of making clear one's meaning and position, the usable frequency for being obtained during frequency planning within the core network.In neighbouring honeycomb very
It is probably one group of similar frequency, but there may be some differences.
In principle, each honeycomb has a class frequency, and knows which honeycomb fashion is adjacent honeycomb, with exhaustive method come most
Smallization adjacent cell uses identical frequency so that the least number of times of frequency hopping.But, suitable trouble.Such as 8 honeycombs, often
Individual have 8 frequencies can to use, and just has 8！=40320 kinds of methods arrange frequency.In a place, there may be 5000 bases
Stand, it is clear that amount of calculation is very huge.Accordingly, it would be desirable to a kind of new solution.
Some detailed models show, the frequency hop sequences in honeycomb strictly limit (such 1,2,3,4 are allowed as being 2,
3,4,1 but do not allow to be 2, Isosorbide-5-Nitrae, 3), so, simplified solution is the best solution of performance closely.Cause
This, being combined as 8 cells has 8 quantity of frequency to become 8 now！.
Frequency planning complexity tackles the mode of random disturbances in system, typical from the interference of unauthorized user.From
The part interference of one honeycomb interior is seen.Base station is it will be noted that certain frequency, and f, its frequency-hopping sequences related to transmission signal are poor
Mistake increases suddenly for the meeting of some terminals, is judged as being due to interference.If the positional information of terminal, can adopt
It is reduced to interference with predetermined mode minimum.In this case, the method for the present invention solves this using dispatching algorithm
Problem, dispatching algorithm specifically, first determine produce interference honeycomb, by one in wherein any one cellular frequency-hopping sequences
Frequency is deleted.For example, the frequency of use of honeycomb 1 and 1,2,3,4, the neighbouring frequency of use 2,3,4,1 of honeycomb 2.Thus produce
Interference is given birth to.If honeycomb 1 removes frequency 2, its hopping pattern is just changed into 1,3,4,1,3,4,1..., and this will be with honeycomb 2
Interference will not be produced, the hopping pattern for using of the latter is 2,3,4,1,2,3,4,1.
It is it is not recommended that carrying out frequency hopping during superframe in practice.Because network will be using wide before superframe
Frame is broadcast to tell the change of terminal frequency-hopping mode.If frequency hopping is too frequent, terminal may be due to battery intercept it is super
Frame, may can not find network when they wake up.This results in them needs to find network again, wastes battery lamp.
Therefore, in the method for the present invention, if a honeycomb feels to need to delete certain frequency from his frequency hopping lists, it will lead to
Know network planning system.
Then honeycomb have to determine when the frequency recovered.This is not one and readily determines, because it may not
It is determined that whether interference disappears.Terminal must be using this frequency until next frequency planning at that time.One feasible method
It is the specific terminal of request, him to provide the interference measure of CF, still an alternative is that carrying out at predetermined time intervals
Frequency planning, for example, carried out a frequency planning every 15 minutes, can solve the problems, such as frequency interferences.
8 frequencies can be used in any honeycomb.This limitation is herein primarily to limitation needs to jump
Frequency sequence is described as the space in the MAC header of terminal.This limitation is also due to shorten when frequency planning
Time.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (6)
1. a kind of broadcasting and TV frequency spectrum ultra-narrow is with Internet of Things frequency planning method, it is characterised in that including to the frequency sequence in honeycomb
Limited, only allow frequency to be arranged according to predefined procedure；Frequency-hopping sequences to terminal are intercepted, and are judged whether
Interference, if in the presence of interference, being planned frequency according to dispatching algorithm.
2. broadcasting and TV frequency spectrum ultra-narrow according to claim 1 is with Internet of Things frequency planning method, it is characterised in that the scheduling
Algorithm is specially：It is determined that producing the honeycomb of interference, a frequency in wherein any one cellular frequency-hopping sequences is deleted
Remove.
3. broadcasting and TV frequency spectrum ultra-narrow according to claim 2 is with Internet of Things frequency planning method, it is characterised in that recover frequency
The preceding interference measure for needing to ask specific terminal to provide CF, judges whether interference has disappeared according to interference measure
Lose, if interference has disappeared, frequency is planned again, the frequency of deletion is recovered.
4. broadcasting and TV frequency spectrum ultra-narrow according to claim 2 is with Internet of Things frequency planning method, it is characterised in that any one
Honeycomb is deleted before certain frequency from frequency hopping lists, it is necessary to notify network planning system.
5. broadcasting and TV frequency spectrum ultra-narrow according to claim 1 is with Internet of Things frequency planning method, it is characterised in that every predetermined
Time period carries out the primary system plan to frequency.
6. broadcasting and TV frequency spectrum ultra-narrow according to claim 1 is with Internet of Things frequency planning method, it is characterised in that all honeycombs
Frequency-hopping sequences in number of frequencies all same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710194745.XA CN106792726A (en) | 2017-03-29 | 2017-03-29 | A kind of broadcasting and TV frequency spectrum ultra-narrow band Internet of Things frequency planning method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710194745.XA CN106792726A (en) | 2017-03-29 | 2017-03-29 | A kind of broadcasting and TV frequency spectrum ultra-narrow band Internet of Things frequency planning method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107197467A (en) * | 2017-07-20 | 2017-09-22 | 重庆信科设计有限公司 | A kind of NB IoT wireless network deployment methods based on LTE |
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|---|---|---|---|---|
| US5394433A (en) * | 1993-04-22 | 1995-02-28 | International Business Machines Corporation | Frequency hopping pattern assignment and control in multiple autonomous collocated radio networks |
| CN100442676C (en) * | 2003-07-10 | 2008-12-10 | 松下电器产业株式会社 | Radio communication apparatus and interference avoiding method |
| CN102340779A (en) * | 2010-07-20 | 2012-02-01 | 普天信息技术研究院有限公司 | Frequency planning method |
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2017
- 2017-03-29 CN CN201710194745.XA patent/CN106792726A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5394433A (en) * | 1993-04-22 | 1995-02-28 | International Business Machines Corporation | Frequency hopping pattern assignment and control in multiple autonomous collocated radio networks |
| CN100442676C (en) * | 2003-07-10 | 2008-12-10 | 松下电器产业株式会社 | Radio communication apparatus and interference avoiding method |
| CN102340779A (en) * | 2010-07-20 | 2012-02-01 | 普天信息技术研究院有限公司 | Frequency planning method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107197467A (en) * | 2017-07-20 | 2017-09-22 | 重庆信科设计有限公司 | A kind of NB IoT wireless network deployment methods based on LTE |
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Application publication date: 20170531 |