CN106385707A - TD-LTE automatic time delay adjustment method and device - Google Patents
TD-LTE automatic time delay adjustment method and device Download PDFInfo
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- CN106385707A CN106385707A CN201610828870.7A CN201610828870A CN106385707A CN 106385707 A CN106385707 A CN 106385707A CN 201610828870 A CN201610828870 A CN 201610828870A CN 106385707 A CN106385707 A CN 106385707A
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- synchronizing signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
- H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
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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
- H04B17/364—Delay profiles
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- Computer Networks & Wireless Communication (AREA)
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- Physics & Mathematics (AREA)
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- Synchronisation In Digital Transmission Systems (AREA)
Abstract
The invention discloses a TD-LTE automatic time delay adjustment method and device. The method comprises the steps that S1, a system regularly works at the F band of TD-LTE; S2, a TD-LTE synchronous detection module detects a synchronizing signal of a TD-LTE frame at the F band, and inputs the synchronizing signal into a time delay detection module; S3, the time delay detection module carries out the zero clearing of an internal time delay difference timer through the inputted synchronizing signal; S4, the system regularly works at the D band; S5, the TD-LTE synchronous detection module detects a synchronizing signal at the D band, and inputs the synchronizing signal into the time delay detection module S6, the time delay detection module controls and reads the time values of the internal time different timer through the inputted synchronizing signal; S7, the steps S3-S6 are repeatedly carried out, and the time delay difference between the F band and an E band is measured; S8, the time delay difference between the band D and the band E is calculated according to the calculated time delay differences between the F band and the D band and between the F band and the E band at step S6 and S7; S9, a synchronizing signal automatic adjustment module calculates three types of TD-LTE synchronizing signals at different bands. The method improves the intelligentization degree of a product and the adaptability of the product.
Description
Technical field
The present invention relates to wireless communication technology field, more specifically, particularly to a kind of adjustment of TD-LTE automatic delay
Method and device.
Background technology
The 4G TD-LTE technology of China Mobile is mainly using three frequency ranges, i.e. F-band, D frequency range and E frequency range at present.According to
China Mobile sees between different places different frequency range it is the difference having delay inequality in national actual deployment at present；For example wide
The TD LTE of eastern F-band is 700us more advanced than the TD-LTE signal of D frequency range, and the situation in northeast will be F-band and D frequency
The TD-LTE signal of section is alignment.Seen according to actual service condition, each frequency range sees that F-band is always advanced in time simultaneously
(or being equal to) D frequency range and E frequency range.
Because TD-LTE signal is time division signal, if bad to the synchronization process of spacing wave, can lead to the product cannot
Use.Therefore in this kind of application of cellular phone signal shielding device, if being unable to the TD-LTE signal of automatic identification different frequency range
Then the versatility of product can be made troubles；Even directly cannot use.For these reasons it is proposed that a kind of TD-LTE from
Dynamic time delay adjusting method.
Content of the invention
It is an object of the invention to provide a kind of TD-LTE automatic delay method of adjustment, same type can be allowed using the method
Equipment accurately exports the TD-LTE signal of three kinds of different frequency ranges simultaneously, throughout the country can normal work；Improve product
Intelligence degree, improve the adaptation of product, and reduce production cost and reduce product type of the same clan.
In order to achieve the above object, the technical solution used in the present invention is as follows：
A kind of TD-LTE automatic delay method of adjustment, the method comprises the following steps：
S1, system fixation is operated in by the F-band of TD-LTE by control unit；
S2, TD-LTE synchronous detection module detects the synchronizing signal of the TD-LTE frame of F-band, then by this signal input
To time delay detection module；
S3, the synchronizing signal of time delay detection module input remove the time delay difference timer within clearing；
System fixation is operated in the D frequency range of TD-LTE by S4, control unit again；
S5, TD-LTE synchronous detection module detects the synchronizing signal of the TD-LTE frame of D frequency range, then by this signal input
To time delay detection module；
S6, time delay detection module input sync signal go to control the time value of the time delay difference timer within reading,
This time value is the time delayed difference value of F-band and D frequency range；
S7, repeat step S3 to S6 are thus measure F-band and the time delayed difference value of E frequency range；
S8, the time delayed difference value of F and D frequency range being calculated according to step S6 and S7 and the time delayed difference value of F and E frequency range calculate
D and the time delayed difference value of E frequency range；
S9, synchronizing signal automatic regulating module, according to the time delayed difference value of input signal and F, D, E frequency range, to calculate three
Plant the TD-LTE synchronizing signal of different frequency range.
Further, in described step S3, the clearing method of described time delay difference timer is to use this synchronizing signal
Rising edge goes to control and resets.
Further, described time delay difference timer refers to the enumerator that a cycle is 5ms.
Further, in described step S6, go to control with input sync signal and read time delay difference timer periods value
Concrete grammar is：Go to control the time value reading time delay difference timer with the rising edge of D frequency range TD-LTE synchronizing signal.
Further, in described step S9, the concrete side of the described TD-LTE synchronizing signal calculating three kinds of different frequency ranges
Method is：Time delay difference according to different frequency range carries out postponing output to the synchronizing signal of input or exports in advance.
The present invention also provides a kind of device realizing above-mentioned TD-LTE automatic delay method of adjustment, including：
Control unit, for controlling the frequency range of work；
TD-LTE synchronous detection module, for detecting the synchronizing signal of TD-LTE frame；
Time delay detection module, for detecting the delay inequality between the TD-LTE signal of different frequency range；
And, synchronizing signal automatic regulating module, for exporting the synchronous control signal of three kinds of frequency ranges exactly；
Described control unit, time delay detection module and synchronizing signal automatic detection module all with TD-LTE synchronous detection module
Connect.
Further, described control unit is single-chip microcomputer, DSP or logic chip.
Compared with prior art, it is an advantage of the current invention that：The present invention, when using, is capable of the same program whole nation
General, without manual intervention, intelligent high, easy to use, adaptability is good for full-automation；Can be automatically and accurately simultaneously defeated
Go out the TD-LTE synchronizing signal of three kinds of different frequency ranges, and cost is relatively low.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the frame diagram of TD-LTE automatic delay adjusting apparatus of the present invention.
Fig. 2 is the flow chart of TD-LTE automatic delay method of adjustment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the preferred embodiments of the present invention are described in detail, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clearly defining.
Refering to shown in Fig. 1, the present invention provides a kind of TD-LTE automatic delay adjusting apparatus, including four parts：Control unit,
TD-LTE synchronous detection module, time delay detection module and synchronizing signal automatic detection module.Wherein, control unit is used for controlling
The frequency range of work, TD-LTE synchronous detection module is used for detecting the synchronizing signal of TD-LTE frame, time delay detection module be then for
Delay inequality between the TD-LTE signal of detection different frequency range, synchronizing signal automatic regulating module is used for exporting three kinds exactly
The synchronous control signal of frequency range.
In conjunction with Fig. 2, the present invention provides a kind of TD-LTE automatic delay method of adjustment, specifically includes following steps：
System fixation is operated in the F-band of TD-LTE, this control unit can be monolithic by step 100 by control unit
Machine, DSP or logic chip etc.；
Step 101, TD-LTE synchronous detection module detects the synchronizing signal of the TD-LTE frame of this frequency range, then believes this
Number it is input to time delay detection module；The synchronizing signal of the TD-LTE frame now detecting is the synchronizing signal of F-band TD-LTE.
Step 102, time delay detection module input sync signal removes the time delay difference timer within clearing.
Described input sync signal is the synchronizing signal of F-band TD-LTE herein, and described time delay difference meter
When device clearing method be with the rising edge of this synchronizing signal go control reset.
The time delay difference timer of described inside refers to the enumerator that a cycle is 5ms.
Step 103, system fixation is operated in the D frequency range of TD-LTE by control unit, that is, change the working frequency range of signal, accurate
The delay inequality of standby detection different frequency range.
Step 104, TD-LTE synchronous detection module detects the synchronizing signal of the TD-LTE frame of this frequency range, then believes this
Number it is input to time delay detection module；The synchronizing signal that the TD-LTE frame now detecting is described is the synchronization of D frequency range TD-LTE
Signal.
Step 105, time delay detection module input sync signal go control read within time delay difference timer when
Between be worth, then this time value is the time delayed difference value of F-band and D frequency range；
Described input sync signal is in the synchronizing signal of referred to herein as D frequency range TD-LTE；
Described goes to control the method reading time delay difference timer periods value to refer to use D frequency range with input sync signal
The rising edge of TD-LTE synchronizing signal goes to control the time value reading time delay difference timer, and this time value is F-band and D
The time delayed difference value of frequency range.
Step 106, with similar approach repeat step 103 to step 105 it is only necessary to the D frequency range of script is changed to E frequency range just
The delay inequality of F and E frequency range can be measured.
Step 107, subtracted each other with the time value that step 105 and step 106 calculate just can calculate D and E frequency range when
Prolong difference, thus completing the delay inequality of automatic detection each frequency range TD-LTE signal.
Step 108, during normal work, working frequency range according to the TD-LTE synchronizing signal actually entering step 105, step
Rapid 106 and step 107 calculate the TD-LTE synchronizing signal of other two frequency ranges.
The method of the described TD-LTE synchronizing signal calculating other two frequency ranges is the time delay according to different frequency range
Difference carries out postponing output to the synchronizing signal of input or exports in advance.
It is an advantage of the current invention that：
1st, the present invention is general using the same program whole nation, and adaptability is good, maintainable high；
2nd, the present invention adopts full-automation without manual intervention, and intelligent high, easy to use, ease for use is good；
3rd, the present invention adopts a kind of method being provided that automatic detection delay inequality of preferable low cost；
4th, the present invention adopts the TD-LTE synchronizing signal that automatically and accurately can simultaneously export three kinds of different frequency ranges.
Although being described in conjunction with the accompanying embodiments of the present invention, patent owner can be in claims
Within the scope of make various modifications or modification, as long as less than the present invention the protection domain described by claim, all should
Within protection scope of the present invention.
Claims (7)
1. a kind of TD-LTE automatic delay method of adjustment is it is characterised in that the method comprises the following steps：
S1, system fixation is operated in by the F-band of TD-LTE by control unit；
S2, TD-LTE synchronous detection module detects the synchronizing signal of the TD-LTE frame of F-band, then by this signal input then
Prolong detection module；
S3, the synchronizing signal of time delay detection module input remove the time delay difference timer within clearing；
System fixation is operated in the D frequency range of TD-LTE by S4, control unit again；
S5, TD-LTE synchronous detection module detects the synchronizing signal of the TD-LTE frame of D frequency range, then by this signal input then
Prolong detection module；
S6, time delay detection module input sync signal go control read within time delay difference timer time value, this when
Between value be F-band and D frequency range time delayed difference value；
S7, repeat step S3 to S6 are thus measure F-band and the time delayed difference value of E frequency range；
S8, the time delayed difference value of F and D frequency range being calculated according to step S6 and S7 and the time delayed difference value of F and E frequency range calculate D and E
The time delayed difference value of frequency range；
S9, synchronizing signal automatic regulating module, according to the time delayed difference value of input signal and F, D, E frequency range, to calculate three kinds not
TD-LTE synchronizing signal with frequency range.
2. TD-LTE automatic delay method of adjustment according to claim 1 is it is characterised in that in described step S3, described
Time delay difference timer clearing method be with the rising edge of this synchronizing signal go control reset.
3. TD-LTE automatic delay method of adjustment according to claim 2 is it is characterised in that described time delay difference timer
Refer to the enumerator that a cycle is 5ms.
4. TD-LTE automatic delay method of adjustment according to claim 1 is it is characterised in that in described step S6, with defeated
Enter synchronizing signal go control read time delay difference timer periods value concrete grammar be：With D frequency range TD-LTE synchronizing signal
Rising edge goes to control the time value reading time delay difference timer.
5. TD-LTE automatic delay method of adjustment according to claim 1 is it is characterised in that in described step S9, described
The concrete grammar calculating the TD-LTE synchronizing signal of three kinds of different frequency ranges is：Time delay difference according to different frequency range is to input
Synchronizing signal carries out postponing output or exports in advance.
6. a kind of device of the TD-LTE automatic delay method of adjustment realized described in claim 1-5 any one, its feature exists
In, including：
Control unit, for controlling the frequency range of work；
TD-LTE synchronous detection module, for detecting the synchronizing signal of TD-LTE frame；
Time delay detection module, for detecting the delay inequality between the TD-LTE signal of different frequency range；
And, synchronizing signal automatic regulating module, for exporting the synchronous control signal of three kinds of frequency ranges exactly；
Described control unit, time delay detection module and synchronizing signal automatic detection module are all with TD-LTE synchronous detection module even
Connect.
7. device according to claim 6 is it is characterised in that described control unit is single-chip microcomputer, DSP or logic chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610828870.7A CN106385707B (en) | 2016-09-18 | 2016-09-18 | A kind of TD-LTE automatic delay method of adjustment and device |
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| CN201610828870.7A CN106385707B (en) | 2016-09-18 | 2016-09-18 | A kind of TD-LTE automatic delay method of adjustment and device |
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| CN106385707A true CN106385707A (en) | 2017-02-08 |
| CN106385707B CN106385707B (en) | 2019-10-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114220255A (en) * | 2021-12-29 | 2022-03-22 | 宜昌测试技术研究所 | Distributed acoustic equipment synchronous control system and method |
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| CN1247437A (en) * | 1998-09-04 | 2000-03-15 | 深圳市华为技术有限公司 | Method for synchronizing all basic station over network in mobile communication system |
| CN102958084A (en) * | 2011-08-23 | 2013-03-06 | 中兴通讯股份有限公司 | Method and system for correcting delay inequality |
| EP2640138A1 (en) * | 2012-03-16 | 2013-09-18 | Panasonic Corporation | Reconfiguration of timing advance groups |
| CN104820654A (en) * | 2015-04-29 | 2015-08-05 | 桂林电子科技大学 | A time-delay adjustor |
| CN104991229A (en) * | 2015-06-25 | 2015-10-21 | 中国船舶重工集团公司第七二四研究所 | Digital beam forming multiplex optical fiber data synchronous method |
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2016
- 2016-09-18 CN CN201610828870.7A patent/CN106385707B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1247437A (en) * | 1998-09-04 | 2000-03-15 | 深圳市华为技术有限公司 | Method for synchronizing all basic station over network in mobile communication system |
| CN102958084A (en) * | 2011-08-23 | 2013-03-06 | 中兴通讯股份有限公司 | Method and system for correcting delay inequality |
| EP2640138A1 (en) * | 2012-03-16 | 2013-09-18 | Panasonic Corporation | Reconfiguration of timing advance groups |
| CN104820654A (en) * | 2015-04-29 | 2015-08-05 | 桂林电子科技大学 | A time-delay adjustor |
| CN104991229A (en) * | 2015-06-25 | 2015-10-21 | 中国船舶重工集团公司第七二四研究所 | Digital beam forming multiplex optical fiber data synchronous method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114220255A (en) * | 2021-12-29 | 2022-03-22 | 宜昌测试技术研究所 | Distributed acoustic equipment synchronous control system and method |
| CN114220255B (en) * | 2021-12-29 | 2024-05-10 | 宜昌测试技术研究所 | Distributed acoustic equipment synchronous control system and method |
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| CN106385707B (en) | 2019-10-22 |
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Address after: 510663 room 517, No. 8, lianhuayan Road, Huangpu District, Guangzhou City, Guangdong Province (office only) Patentee after: Guangzhou Daxi Communication Technology Co.,Ltd. Address before: 510663 workshop b605, No. 17, Xiangshan Road, high tech Industrial Development Zone, Guangzhou, Guangdong Patentee before: GUANGZHOU DAXI COMMUNICATION TECHNOLOGY Co.,Ltd. |
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