CN106332125A - Terminal mode switching method and terminal - Google Patents
Terminal mode switching method and terminal Download PDFInfo
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- CN106332125A CN106332125A CN201510372755.9A CN201510372755A CN106332125A CN 106332125 A CN106332125 A CN 106332125A CN 201510372755 A CN201510372755 A CN 201510372755A CN 106332125 A CN106332125 A CN 106332125A
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- frequency deviation
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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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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a terminal mode switching method and a terminal. The method may comprise the steps of receiving a physical shared channel signal and a secondary synchronization channel signal sent by a base station and carrying out frequency offset estimation when the terminal is in an LTE slave mode, thereby obtaining a frequency offset estimation value corresponding to a measured cell; and carrying out frequency offset compensation on the cell selected when the terminal is switched from the LTE slave mode to a master mode according to the frequency offset estimation value, and residing in the selected cell. Through application of the method, the terminal can be switched from the LTE salve mode to the master mode rapidly, and the influence on the usage of a user for the terminal can be reduced.
Description
Technical field
The present invention relates to communication technology field, particularly to a kind of terminal pattern changing method and terminal.
Background technology
In LTE system, cell information is passed through primary synchronization channel (Physical Shared by base station
Channel, PSCH) and auxiliary synchronization channel (Secondary Synchronization Channel, SSCH)
It is sent to terminal UE.Wherein, the information that PSCH carries is master sync signal (Physical Shared
Channel Signal, PSS), the information that SSCH carries is auxiliary synchronous signals (Secondary
Synchronization Channel Signal, SSS).The UE a series of process by self, can obtain
The information of PSCH and SSCH transmission, deadline and the synchronization of frequency, and then receive the broadcast of base station
Information, obtains the system information of base station, completes the process of cell searching.
In mobile communication system, due to the mobility of terminal, how general cause the signal received there are
Strangle frequency displacement.Further, the crystal oscillator frequency in the initial time of accessing terminal to network, terminal and base station may go out
The biggest error.Both of these case can cause the frequency deviation of the data that terminal receives relatively big, and in LTE system
In system, it is orthogonal between subcarrier, if now there is bigger frequency deviation, it will destroy this orthogonality,
Severe jamming is brought to system.Therefore, it is generally the case that support that the multimode terminal of LTE pattern is by LTE
When pattern switches to holotype, during cell searching, carry out frequency deviation estimation, with to described terminal
Cell measurement results when being switched to holotype by LTE from pattern carries out frequency deviation compensation, reduces system and does
Disturbing, last success is resident to optimum subdistrict.
But, support that the multimode terminal of LTE pattern is in the mistake being switched to holotype by LTE from pattern at present
Cheng Zhong, need the long period could success the most resident to optimum subdistrict, affect user's use to described terminal.
Summary of the invention
The problem to be solved in the present invention is how to realize the multimode terminal supporting LTE pattern by LTE from pattern
Switch to being switched fast of holotype.
Embodiments providing a kind of terminal pattern changing method, described method includes:
When described terminal is in LTE from pattern, receive master sync signal and auxiliary synchronization letter that base station sends
Line frequency of number going forward side by side is estimated partially, it is thus achieved that the frequency deviation estimated value corresponding with measured community；
According to described frequency deviation estimated value, described terminal is selected when pattern switches to holotype by LTE
Community carry out frequency deviation compensation, and the community selected described in residing in.
Alternatively, after the frequency deviation estimated value that described acquisition is corresponding with described measured community, also include:
In the cell list of the described measured community that described frequency deviation estimated value is saved in respectively correspondence.
Alternatively, master sync signal and auxiliary synchronous signals line frequency of going forward side by side that described reception base station sends are estimated partially,
Obtain the frequency deviation estimated value corresponding with measured community, including:
Frequency deviation estimation is carried out, it is thus achieved that corresponding with described measured community according to the master sync signal received
The integer part of frequency deviation estimated value；
Frequency deviation estimation is carried out, it is thus achieved that corresponding with described measured community according to the auxiliary synchronous signals received
The fractional part of frequency deviation estimated value；
By the integer part of obtained frequency deviation estimated value with the fractional part of frequency deviation estimated value according to corresponding quilt
Measure community to be added, as the frequency deviation estimated value of corresponding described measured community.
Alternatively, the measurement result of described measured community includes:
The reference power of the reference signal of measured community；
The quality of reception of the reference signal of measured community.
Embodiments providing a kind of terminal, described terminal includes:
Receive unit, be suitable to when described terminal is in LTE from pattern, receive the main synchronization that base station sends
Signal and auxiliary synchronous signals；
Frequency deviation estimating unit, is suitable to the signal according to described reception unit receives and carries out frequency deviation estimation, obtain
Frequency deviation estimated value that must be corresponding with measured community；
Compensating unit, is suitable to according to described frequency deviation estimated value, LTE switch to described terminal from pattern
Community resident during holotype carries out frequency deviation compensation；
Resident element, is suitable to the community selected described in described terminal being resided in.
Alternatively, described terminal also includes: memory element, is suitable to preserve described frequency deviation estimated value respectively
In the cell list of corresponding described measured community.
Alternatively, described frequency deviation estimating unit includes:
First frequency deviation estimates subelement, is suitable to the master sync signal according to receiving and carries out frequency deviation estimation, obtains
The integer part of frequency deviation estimated value that must be corresponding with described measured community.
Second frequency deviation estimates subelement, is suitable to the auxiliary synchronous signals according to receiving and carries out frequency deviation estimation, obtains
The fractional part of frequency deviation estimated value that must be corresponding with described measured community；
Arithmetic element, is suitable to the fractional part of the integer part by obtained frequency deviation estimated value and frequency deviation estimated value
Divide and be added according to corresponding measured community, as the frequency deviation estimated value of corresponding described measured community.
Alternatively, the measurement result of described measured community include following at least one:
The reference power of the reference signal of measured community；
The quality of reception of the reference signal of measured community.
Compared with prior art, technical scheme at least has the advantage that
By carrying out frequency deviation estimation when terminal is in LTE from pattern, and then measured community can be obtained
Frequency deviation estimated value, such that it is able to according to described frequency deviation estimated value, described terminal is cut from pattern by LTE
The community shifting to select during holotype carries out frequency deviation compensation, and the community selected described in residing in, and
Frequency deviation estimation need not be carried out when described terminal is switched to holotype by LTE from pattern, therefore can realize
Terminal is switched to being switched fast of holotype by LTE from pattern, reduces and user thus uses described terminal
The impact caused.
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of terminal pattern changing method in the embodiment of the present invention；
Fig. 2 is the structural representation of a kind of terminal in the embodiment of the present invention；
Fig. 3 is the structural representation of a kind of frequency deviation estimating unit in the embodiment of the present invention.
Detailed description of the invention
At present, support LTE pattern multimode terminal need when being switched to holotype by LTE from pattern into
Line frequency is estimated partially, and then can be the most resident to optimum subdistrict.The process estimated due to frequency deviation includes receiving
Synchronizing signal that base station sends and the step such as frequency offset calculation, cause described terminal to need the long period could
Success is resident to optimum subdistrict, affects the use of user.
For the problems referred to above, The embodiment provides a kind of terminal pattern changing method, described side
Method by carrying out frequency deviation estimation when terminal is in LTE from pattern, and then can obtain measured community
Frequency deviation estimated value, such that it is able to according to described frequency deviation estimated value, switched from pattern by LTE described terminal
The community selected during to holotype carries out frequency deviation compensation, and the community selected described in residing in, and nothing
Frequency deviation estimation must be carried out when described terminal is switched to holotype by LTE from pattern, therefore can reduce end
End is switched to the time of holotype by LTE from pattern, it is achieved terminal is switched to holotype by LTE from pattern
Be switched fast.
Understandable, below in conjunction with the accompanying drawings for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from
The specific embodiment of the present invention is described in detail.
As it is shown in figure 1, embodiments provide a kind of terminal pattern changing method, described method can
To comprise the steps:
Step 11, when described terminal is in LTE from pattern, receive base station send master sync signal and
Auxiliary synchronous signals line frequency of going forward side by side is estimated partially, it is thus achieved that the frequency deviation estimated value corresponding with measured community.
It should be noted that in embodiments of the invention, described terminal, in addition to supporting LTE pattern, also may be used
With one or more in other communication patterns such as support TD-SCDMA, WCDMA and GSM.
Wherein, described holotype is to grasp wireless signal transmission and corresponding the communicating of communication system receiving control
Pattern, now, other patterns in addition to holotype are from pattern.Such as, language is performed when described terminal
During sound business, GSM is holotype, and other patterns are from pattern.When described terminal performs data service
Time, LTE pattern is holotype, and other patterns are from pattern.The communication system corresponding relative to this pattern,
Other communication systems are different system.
When described terminal is in LTE from pattern, by being in the different system application time sheet of holotype,
And then PSS, SSS and the cell reference signals that base station sends can be received in the timeslice that application is arrived
(Cell Reference Signal, CellRS).Described terminal can be entered according to PSS and SSS received
The synchronization of row community, carries out the measurement of community according to PSS, SSS and the CellRS received.The present invention
Embodiment in, described terminal can also carry out frequency deviation estimation according to PSS and SSS that receive, obtains
Frequency deviation estimated value that must be corresponding with measured community.
Wherein, described terminal, according to PSS and SSS received, can use multiple method to carry out frequency deviation
Estimate, the most no matter use which kind of method to carry out frequency deviation estimation, be not construed as limiting the invention, and
All within protection scope of the present invention.
In one embodiment of the invention, first can carry out frequency deviation estimation according to the PSS received, it is thus achieved that with
The integer part of the frequency deviation estimated value that described measured community is corresponding, further according to the auxiliary synchronous signals received
Carry out frequency deviation estimation, it is thus achieved that the fractional part of the frequency deviation estimated value corresponding with described measured community, finally
By the integer part of obtained frequency deviation estimated value and the fractional part of frequency deviation estimated value according to corresponding measured
Community is added, as the frequency deviation estimated value of corresponding described measured community.
For the ease of using the frequency deviation estimated value of the measured community of correspondence, an enforcement of the present invention exactly
In example, after obtaining the frequency deviation estimated value corresponding with described measured community, described frequency deviation can be estimated
In the cell list of the described measured community that value is saved in correspondence respectively.
Step 12, according to described frequency deviation estimated value, is switched to holotype by LTE from pattern to described terminal
Time the community that selected carry out frequency deviation compensation, and the community selected described in residing in.
Described terminal is switched to holotype by LTE from pattern, can be described terminal by TD-SCDMA,
Any one in other communication patterns such as WCDMA and GSM switches to LTE pattern.Such as, send out
When playing speech business, triggering terminal switches to GSM mode, during conclusion sound business, by GSM mode
Switch to LTE pattern.
When described terminal is switched to holotype by LTE from pattern, timeslice can be distributed voluntarily and receive
PSS, SSS and CellRS that base station sends, and then synchronization and the measurement of community can be carried out.Wherein,
Described cell measurement i.e. reference power and the quality of reception to CellRS measures, it is thus achieved that survey accordingly
Amount result.Described terminal by LTE when pattern switches to holotype, can be according to certain time interval
Carry out cell measurement repeatedly, and select to carry out resident in corresponding community according to measurement result.
When there is frequency deviation, terminal may be affected and correctly demodulate the system message that base station sends, causing institute
State terminal and cannot successfully reside in the community under LTE pattern, or need the long period could be resident to LTE
Community under pattern.Therefore, when described terminal is switched to holotype by LTE from pattern, it is possible to use
Described terminal is in the frequency deviation estimated value that LTE obtains from pattern, and the community selected is carried out frequency deviation compensation,
The frequency deviation of the community selected described in making is less than 100Hz, thus the described community selected can be quick
Demodulate the corresponding system message that base station sends, and the community selected described in quickly residing in.Wherein,
The measurement result of described measured community corresponding to the last time carries out frequency deviation compensation, can include recently
Reference power and the quality of reception of primary measured amount community CellRS carry out frequency deviation compensation.
In being embodied as, multiple method can be used to carry out frequency deviation compensation, the present invention is not restricted.Example
As, the frequency deviation estimated value obtained can be converted to the frequency control signal of correspondence, and then by described
The frequency deviation of corresponding component is controlled by frequency control signal.It is understood that specifically no matter what uses
The mode of kind realizes frequency deviation and compensates, and is not construed as limiting the invention, and all in protection scope of the present invention
Within.
As shown in the above, in the embodiment of the present invention provide terminal pattern switching method, by
Described terminal is in LTE and carries out frequency deviation estimation when pattern, and obtains the frequency deviation estimated value of measured community,
Such that it is able to according to described frequency deviation estimated value, to described terminal by LTE when pattern switches to holotype
The community selected carries out frequency deviation compensation, and the community selected described in residing in, and need not be at described end
End when pattern switches to holotype, carried out frequency deviation estimation by LTE, therefore can reduce terminal by LTE from
Pattern switches to the time of holotype, it is achieved terminal is switched to being switched fast of holotype by LTE from pattern.
In order to make those skilled in the art be more fully understood that and realize the present invention, below to above-mentioned terminal pattern
The device that the method for switching is corresponding is described in detail.
As in figure 2 it is shown, the embodiment of the present invention provides a kind of terminal 20, described terminal may include that reception
Unit 21, frequency deviation estimating unit 22, compensating unit 23 and resident element 24.
Wherein, described reception unit 21 is suitable to when described terminal 20 is in LTE from pattern, receives base
Stand PSS and SSS sent.Described frequency deviation estimating unit 22 is suitable to receive according to described reception unit 21
To signal carry out frequency deviation estimation, it is thus achieved that the frequency deviation estimated value corresponding with measured community.Described compensation is single
Unit 23 is suitable to according to described frequency deviation estimated value, to described terminal by LTE when pattern switches to holotype
The community selected carries out frequency deviation compensation.Described resident element 24 be suitable to reside in described terminal described in
The community selected.
In being embodied as, the measurement result of described measured community may include that the ginseng of measured community
Examine reference power and the quality of reception of signal.It is to say, described compensating unit 23 is when compensating,
Both compensating the reference power of the reference signal of measured community, the reference to measured community is believed again
Number the quality of reception compensate.
In being embodied as, described terminal 20 can also include memory element 25.Described memory element 25
Be suitable to described frequency deviation estimated value be saved in respectively in the cell list of the described measured community of correspondence.This
Sample, when the measurement result of described compensating unit 23 measured community corresponding to the last time carries out frequency deviation compensation
Time, directly can obtain frequency deviation estimated value from the cell list of corresponding described measured community and carry out
Frequency deviation compensates.
In being embodied as, as it is shown on figure 3, described frequency deviation estimating unit 30 may include that the first frequency deviation
Estimate that subelement the 31, second frequency deviation estimates subelement 32 and arithmetic element 33.Wherein, described first
Frequency deviation estimates that the PSS that subelement 31 is suitable to according to receiving carries out frequency deviation estimation, it is thus achieved that measured with described
The integer part of the frequency deviation estimated value that community is corresponding.Described second frequency deviation estimates that subelement 32 is suitable to according to connecing
The SSS received carries out frequency deviation estimation, it is thus achieved that the decimal of the frequency deviation estimated value corresponding with described measured community
Part.Described arithmetic element 33 is suitable to the integer part of obtained frequency deviation estimated value and frequency deviation estimated value
Fractional part is added according to corresponding measured community, and the frequency deviation as corresponding described measured community is estimated
Evaluation.
As shown in the above, the terminal 20 provided in the embodiment of the present invention, by frequency deviation estimating unit 22
Carry out frequency deviation estimation when described terminal 20 is in LTE from pattern, and the frequency deviation obtaining measured community is estimated
Evaluation, such that it is able to when described terminal is switched to holotype by LTE from pattern, by described compensating unit
Described terminal, according to described frequency deviation estimated value, was selected when pattern switches to holotype by 23 by LTE
Community carries out frequency deviation compensation, the most successfully reside in described in the community that selected, and need not be in described terminal
20 are carried out frequency deviation estimation by LTE when pattern switches to holotype, therefore can reduce terminal 20 by LTE
The time of holotype is switched to, it is achieved terminal 20 is switched to the quick of holotype by LTE from pattern from pattern
Switching.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment
Suddenly the program that can be by completes to instruct relevant hardware, and this program can be stored in a computer can
Reading in storage medium, storage medium may include that ROM, RAM, disk or CD etc..
Although present disclosure is as above, but the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, all can make various changes or modifications, therefore the guarantor of the present invention
The scope of protecting should be as the criterion with claim limited range.
Claims (8)
1. a terminal pattern changing method, it is characterised in that including:
When described terminal is in LTE from pattern, receive master sync signal and auxiliary synchronization letter that base station sends
Line frequency of number going forward side by side is estimated partially, it is thus achieved that the frequency deviation estimated value corresponding with measured community；
According to described frequency deviation estimated value, described terminal is selected when pattern switches to holotype by LTE
Community carry out frequency deviation compensation, and the community selected described in residing in.
2. terminal pattern changing method as claimed in claim 1, it is characterised in that described acquisition and described quilt
After measuring the frequency deviation estimated value that community is corresponding, also include:
In the cell list of the described measured community that described frequency deviation estimated value is saved in respectively correspondence.
3. terminal pattern changing method as claimed in claim 1, it is characterised in that described reception base station sends
Master sync signal and auxiliary synchronous signals line frequency of going forward side by side partially estimate, it is thus achieved that the frequency deviation corresponding with measured community
Estimated value, including:
Frequency deviation estimation is carried out, it is thus achieved that corresponding with described measured community according to the master sync signal received
The integer part of frequency deviation estimated value；
Frequency deviation estimation is carried out, it is thus achieved that corresponding with described measured community according to the auxiliary synchronous signals received
The fractional part of frequency deviation estimated value；
By the integer part of obtained frequency deviation estimated value with the fractional part of frequency deviation estimated value according to corresponding quilt
Measure community to be added, as the frequency deviation estimated value of corresponding described measured community.
4. terminal pattern changing method as claimed in claim 1, it is characterised in that described measured community
Measurement result includes:
The reference power of the reference signal of measured community；
The quality of reception of the reference signal of measured community.
5. a terminal, it is characterised in that including:
Receive unit, be suitable to when described terminal is in LTE from pattern, receive the main synchronization that base station sends
Signal and auxiliary synchronous signals；
Frequency deviation estimating unit, is suitable to the signal according to described reception unit receives and carries out frequency deviation estimation, obtain
Frequency deviation estimated value that must be corresponding with measured community；
Compensating unit, is suitable to according to described frequency deviation estimated value, LTE switch to described terminal from pattern
The community selected during holotype carries out frequency deviation compensation；
Resident element, is suitable to the community selected described in described terminal being resided in.
6. terminal as claimed in claim 5, it is characterised in that also include: memory element, be suitable to described
In the cell list of the described measured community that frequency deviation estimated value is saved in correspondence respectively.
7. terminal as claimed in claim 5, it is characterised in that described frequency deviation estimating unit includes:
First frequency deviation estimates subelement, is suitable to the master sync signal according to receiving and carries out frequency deviation estimation, obtains
The integer part of frequency deviation estimated value that must be corresponding with described measured community；
Second frequency deviation estimates subelement, is suitable to the auxiliary synchronous signals according to receiving and carries out frequency deviation estimation, obtains
The fractional part of frequency deviation estimated value that must be corresponding with described measured community；
Arithmetic element, is suitable to the fractional part of the integer part by obtained frequency deviation estimated value and frequency deviation estimated value
Divide and be added according to corresponding measured community, as the frequency deviation estimated value of corresponding described measured community.
8. terminal as claimed in claim 5, it is characterised in that the measurement result of described measured community includes:
The reference power of the reference signal of measured community；
The quality of reception of the reference signal of measured community.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510372755.9A CN106332125B (en) | 2015-06-30 | 2015-06-30 | Terminal pattern switching method and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510372755.9A CN106332125B (en) | 2015-06-30 | 2015-06-30 | Terminal pattern switching method and terminal |
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| CN106332125A true CN106332125A (en) | 2017-01-11 |
| CN106332125B CN106332125B (en) | 2019-12-03 |
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ID=57723139
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510372755.9A Active CN106332125B (en) | 2015-06-30 | 2015-06-30 | Terminal pattern switching method and terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112911701A (en) * | 2021-01-29 | 2021-06-04 | 展讯通信（上海）有限公司 | Frequency offset control method and device, terminal and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1909386A (en) * | 2005-08-05 | 2007-02-07 | 上海明波通信技术有限公司 | Device and method for realizing frequency switch and automatic control of multiple-module mobile communication terminal |
| US20100003989A1 (en) * | 2006-05-04 | 2010-01-07 | Mickael Bouyaud | Receiver with afc function for operating in soft handover |
| CN101902774A (en) * | 2009-05-27 | 2010-12-01 | 大唐移动通信设备有限公司 | Method and equipment for processing frequency offset |
| CN102098250A (en) * | 2011-01-26 | 2011-06-15 | 意法·爱立信半导体（北京）有限公司 | Frequency offset processing method and device for multi-mode terminal |
| CN102791009A (en) * | 2011-05-17 | 2012-11-21 | 中兴通讯股份有限公司 | Multimode terminal and time synchronizing method in cross form switching thereof |
-
2015
- 2015-06-30 CN CN201510372755.9A patent/CN106332125B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1909386A (en) * | 2005-08-05 | 2007-02-07 | 上海明波通信技术有限公司 | Device and method for realizing frequency switch and automatic control of multiple-module mobile communication terminal |
| US20100003989A1 (en) * | 2006-05-04 | 2010-01-07 | Mickael Bouyaud | Receiver with afc function for operating in soft handover |
| CN101902774A (en) * | 2009-05-27 | 2010-12-01 | 大唐移动通信设备有限公司 | Method and equipment for processing frequency offset |
| CN102098250A (en) * | 2011-01-26 | 2011-06-15 | 意法·爱立信半导体（北京）有限公司 | Frequency offset processing method and device for multi-mode terminal |
| CN102791009A (en) * | 2011-05-17 | 2012-11-21 | 中兴通讯股份有限公司 | Multimode terminal and time synchronizing method in cross form switching thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112911701A (en) * | 2021-01-29 | 2021-06-04 | 展讯通信（上海）有限公司 | Frequency offset control method and device, terminal and storage medium |
| CN112911701B (en) * | 2021-01-29 | 2022-06-21 | 展讯通信（上海）有限公司 | Frequency offset control method and device, terminal and storage medium |
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| Publication number | Publication date |
|---|---|
| CN106332125B (en) | 2019-12-03 |
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