CN106330422A - Synchronization method and device between receiving and transmitting terminals in optical transmission system - Google Patents
Synchronization method and device between receiving and transmitting terminals in optical transmission system Download PDFInfo
- Publication number
- CN106330422A CN106330422A CN201510391633.4A CN201510391633A CN106330422A CN 106330422 A CN106330422 A CN 106330422A CN 201510391633 A CN201510391633 A CN 201510391633A CN 106330422 A CN106330422 A CN 106330422A
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- China
- Prior art keywords
- receiving terminal
- data frame
- sequence
- information
- receiving
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/0008—Synchronisation information channels, e.g. clock distribution lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2656—Frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe synchronisation
Abstract
The invention provides a synchronization method between receiving and transmitting terminals in an optical transmission system. The method comprises the following steps: imbedding information for training a receiving terminal link in to-be-sent interaction control information; encoding the interaction control information containing the information of the receiving terminal link to obtain an encoded sequence, and modulating the sequence; and completing four times of handshake between the receiving and transmitting terminals by the modulated sequence. The invention further provides a synchronization device between the receiving and transmitting terminals in the optical transmission system. The purpose of increasing the user throughput by preventing the initially sent user data from being accurately received can be realized.
Description
Technical field
The present invention relates to the optical transport technology in the communications field, particularly relate to sending and receiving end in a kind of optical transmission system
Between synchronous method and device.
Background technology
In optical transport technology field, current data transmission mainly uses wavelength-division system, but, use ripple
During subsystem carries out data transmission, chromatic dispersion, polarizing coating dispersion, strong filter effect etc. can be there are
Problem, existing treating method is digital signal processing method, also referred to as 100G Digital Signal Processing
(DSP, Digital Signal Processing).Use the wavelength-division system of 100G DSP treatment technology, power on
Rear chip directly transmits Frame, and equilibrium and the synchronization of receiving terminal gradually restrain by user data, meeting in data
Equally spaced insertion pilot tone is accelerated to synchronize and the speed of equilibrium, but, the user data sent time initial by
Can be wasted in sync equalizing not convergence；Even and if have pilot tone, in order to make, user's is throughput-maximized,
Generally the density of pilot tone also can be more much smaller than packing density, and so, the speed that can make synchronization and equilibrium is slow,
The waste of user data when causing initial equally.
Summary of the invention
In consideration of it, for solving the problem that prior art exists, the embodiment of the present invention provides a kind of optical transmission system
Synchronous method between middle sending and receiving end and device, it is to avoid the user data sent time initial can not accurately be received.
The technical scheme of the embodiment of the present invention is achieved in that
Embodiments provide the synchronous method between sending and receiving end in a kind of optical transmission system, described method
Including:
The information for training receiving terminal link is inserted in the interactive control information of required transmission；
Interactive control information containing training receiving terminal link information is encoded and modulates, obtains coding and adjust
Sequence after system；
The sequence after described coded modulation is utilized to complete the 4-Way Handshake between sending and receiving end.
In such scheme, described synchronous method, described for training the information of receiving terminal link, including:
Request data frame, responsive data frame, correct response message data frame.
In such scheme, described synchronous method, described in the interactive control information of required transmission, insert use
In training receiving terminal link information, including:
The described required interactive control information sent is respectively implanted for train please described in receiving terminal link
Ask Frame, described responsive data frame, described correct response message data frame.
In such scheme, described synchronous method, the 4-Way Handshake between described sending and receiving end includes:
Transmitting terminal sends solicited status to receiving terminal；Receiving terminal returns the sequence of responsive data frame to transmitting terminal；
Transmitting terminal receives after the sequence of the responsive data frame of receiving terminal, sends correct response to receiving terminal and disappears
Breath state；Receiving terminal returns request data frame sequence to transmitting terminal；
Transmitting terminal receives after the request data frame sequence of receiving terminal, sends responsive state to receiving terminal；Connect
Receiving end returns response data frame sequence or correct response message data frame sequence to transmitting terminal；
Transmitting terminal receives the number of the correct response message data frame sequence from receiving terminal and reaches to arrange number
After, send Frame state to receiving terminal；And when sending Frame, send to receiving terminal always
Data.
In such scheme, described synchronous method, described agreement number is: be arranged at described interactive controlling letter
In breath, transmitting terminal receive the number of correct response message data frame of receiving terminal.
Embodiments provide the synchronizer between sending and receiving end in a kind of optical transmission system, described device
Including:
Information inserts unit, for inserting in the interactive control information of required transmission for training receiving terminal chain
The information on road, and generate the information of training receiving terminal link；
Coded modulation unit, for encoding the interactive control information containing training receiving terminal link information
And modulation, obtain the sequence after coded modulation；
Main control unit, the 4-Way Handshake that the sequence after utilizing described modulation completes between sending and receiving end；
Send and receive unit, be used for the sequence after sending described coded modulation, and reception opposite end sends over
Information；
Memory element, the sequence after the information storing described training receiving terminal link and described modulation.
In such scheme, described synchronizer, described information is inserted unit, is connect specifically for producing training
The request data frame of receiving end link, responsive data frame, correct response message data frame.
In such scheme, described synchronizer, described information inserts unit, specifically for described required
The interactive control information sent is respectively implanted for training the request data frame of receiving terminal link, response data
Frame, correct response message data frame.
In such scheme, described synchronizer, described main control unit, specifically for:
Transmitting terminal sends solicited status to receiving terminal；Receiving terminal returns the sequence of responsive data frame to transmitting terminal；
Transmitting terminal receives after the sequence of the responsive data frame of receiving terminal, sends correct response to receiving terminal and disappears
Breath state；Receiving terminal returns request data frame sequence to transmitting terminal；
Transmitting terminal receives after the request data frame sequence of receiving terminal, sends responsive state to receiving terminal；Connect
Receiving end returns response data frame sequence or correct response message data frame sequence to transmitting terminal；
Transmitting terminal receives the number of the correct response message data frame sequence from receiving terminal and reaches to arrange number
After, send Frame state to receiving terminal；And when sending Frame, send to receiving terminal always
Data.
In such scheme, described synchronizer, also include:
Counting unit, for counting the correct response message data frame sequence received；
Unit is set, receives the correct of receiving terminal for arranging transmitting terminal in described interactive control information
The number of response message data frame.
Synchronous method between sending and receiving end and device in the optical transmission system that the embodiment of the present invention provides, by band
There is the interactive control information of training receiving terminal link information, during 4-Way Handshake, complete link, help
Quickly establish the link between two nodes of equity；And, the time established the link of saving can be used to
Send data, increase the handling capacity of user data；Meanwhile, the embodiment of the present invention uses cleverly four times and holds
Mobile phone system, facilitates receiving terminal to synchronize to be aware of when receiving data frames, so, can improve stablizing of whole system
Property；Furthermore, by the interactive control information containing training receiving terminal link information so that at the receiver of two ends
In good state, it is ensured that first data frame decoding success, simplify what receiving terminal judgement received
Whether data are some flow processs of Frame, have simplified the scheduling of whole receiver, are directly or indirectly beneficial to increase
Large user's handling capacity.
Accompanying drawing explanation
The realization stream of synchronous method between sending and receiving end in the optical transmission system that Fig. 1 provides for the embodiment of the present invention
Journey schematic diagram；
The optical transmission system that Fig. 2 provides for the embodiment of the present invention is held for four times in synchronous method between sending and receiving end
The swimming lane schematic diagram of hands；
The knot of synchronizer between sending and receiving end in a kind of optical transmission system that Fig. 3 provides for the embodiment of the present invention
Structure schematic diagram；
Synchronizer between sending and receiving end in the another kind of optical transmission system that Fig. 4 provides for the embodiment of the present invention
Structural representation.
Detailed description of the invention
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings, in the embodiment of the present invention with
Use in the wavelength-division system of 100G DSP and introduce as a example by the synchronizing process of data transmission between the receiver of two ends.
The realization stream of synchronous method between sending and receiving end in the optical transmission system that Fig. 1 provides for the embodiment of the present invention
Journey schematic diagram, as it is shown in figure 1, between sending and receiving end synchronization side in a kind of optical transmission system of the present embodiment offer
Method includes:
Step 101: the receiver of transmitting terminal is inserted in the interactive control information of required transmission and connect for training
The information of receiving end link；
Here, described for training the information of receiving terminal link, including following information: request (request)
Frame, response (response) Frame, correct response message (Acknowledgement, Ack)
Frame.
Described insert in the interactive control information of required transmission for training the information of receiving terminal link specifically to wrap
Include: in the interactive control information of required transmission, be respectively implanted the request data for training receiving terminal link
Frame, responsive data frame, correct response message data frame.
Here, for specifically for training the request data frame of receiving terminal link, responsive data frame, just should indeed
Answer message data frame is placed in which position of interactive control information, do not limit, can be optional three and consolidate
Fixed position, the order of inserting of the Frame of three types does not limits；As long as concrete implantation site sends
End and receiving terminal consult in advance.
Step 102: the interactive control information containing training receiving terminal link information is entered by the receiver of transmitting terminal
Row coding and modulation, obtain the sequence after coded modulation；
Step 103: the receiver of transmitting terminal and the receiver of receiving terminal utilize the sequence after described coded modulation
Complete the 4-Way Handshake between sending and receiving end.
Concrete, in the optical transmission system that Fig. 2 provides for inventive embodiments in synchronous method between sending and receiving end
The swimming lane schematic diagram of 4-Way Handshake, concrete 4-Way Handshake receiver and the receiving terminal of transmitting terminal receiver it
Between carry out.As in figure 2 it is shown, described for training the information of receiving terminal link to include: request data frame, sound
When answering Frame, correct response message data frame, the 4-Way Handshake process between described sending and receiving end includes:
Step 201a: transmitting terminal sends solicited status to receiving terminal；
Step 201b: receiving terminal returns the sequence of responsive data frame to transmitting terminal；
Step 202a: transmitting terminal receives after the sequence of the responsive data frame of receiving terminal, sends to receiving terminal
Correct response message status；
Step 202b: receiving terminal returns request data frame sequence to transmitting terminal；
Step 203a: transmitting terminal receives after the request data frame sequence of receiving terminal, sends to receiving terminal and rings
Answer state；
Step 203b: receiving terminal returns response data frame sequence or correct response message data frame sequence to transmitting terminal
Row；
Step 204a～204b: transmitting terminal receives the number of the correct response message data frame sequence from receiving terminal
After mesh reaches to arrange number, send Frame state to receiving terminal；And when sending Frame, to
Receiving terminal sends data always；
Here, without reaching to arrange number, then repeated execution of steps 202a, 202b, 203a and step
203b；
Wherein, described agreement number is arranged in interactive control information, transmitting terminal receives receiving terminal
The number of correct response message data frame.
In processing procedure shown in Fig. 2, step 201a and step 201b are to shake hands for the first time, step 202a
Being second handshake with step 202b, step 203a and step 203b are that third time is shaken hands, step 204a
It is 4-Way Handshake with step 204b.
Synchronous method between sending and receiving end in the optical transmission system that the embodiment of the present invention provides, by with training
The interactive control information of receiving terminal link information, completes link during 4-Way Handshake, contributes to equity
Quickly establish the link between two nodes；The time established the link saved can be used to send data, increases and uses
The handling capacity of user data, the embodiment of the present invention can also improve the stability of whole system, simplifies whole receiver
Scheduling, be directly or indirectly beneficial to increase user throughput.
For realizing said method, the embodiment of the present invention additionally provides in a kind of optical transmission system between sending and receiving end
Synchronizer, this synchronizer in the present embodiment is positioned in receiver, as it is shown on figure 3, this synchronization dress
Put and include:
Information inserts unit 301, for inserting for training reception in the interactive control information of required transmission
The information of end link；
In the present embodiment, described information is inserted unit 301 and is positioned in the receiver of transmitting terminal；
Coded modulation unit 302, for carrying out the interactive control information containing training receiving terminal link information
Coding and modulation, obtain the sequence after coded modulation；
In the present embodiment, described coded modulation unit 302 is respectively placed in receiver and the receiving terminal of transmitting terminal
Receiver in；
It addition, for the sequential decoding modulation that opposite end is sended over, in addition it is also necessary to it is furnished with decoding modulating unit,
Decoding modulating unit can use the decoding modulation function of receiver itself；
It is to say, the receiver of sending and receiving end is both needed to place coded modulation unit 302 and decoding modulating unit.
Main control unit 303, what the sequence after utilizing described coded modulation completed between sending and receiving end holds for four times
Hands；
In the present embodiment, described main control unit 303 is equal in the receiver of transmitting terminal and the receiver of receiving terminal
Need to place；
Send and receive unit 304, the sequence after sending described coded modulation, and receive what opposite end was sent
Information；
In the present embodiment, described transmission receives the unit 304 receiver at transmitting terminal and the receiver of receiving terminal
In be both needed to place；When being positioned over the receiver of transmitting terminal, need the sequence after sending described coded modulation and connect
Receive the information that opposite end is sent；When being positioned over the receiver of receiving terminal, for receiving the information that opposite end is sent；
Memory element 305, the sequence after the information storing training receiving terminal link and coded modulation；
In the present embodiment, described memory element 305 is positioned in the receiver of transmitting terminal.
Concrete, information is inserted unit 301 and is produced the information for training receiving terminal link, and will be used for instructing
The information practicing receiving terminal link is inserted in the required interactive control information sent, described training receiving terminal link
Information is stored in memory element 305；Then, coded modulation unit 302 will be containing training receiving terminal link information
Interactive control information encode and modulate, obtain the sequence after coded modulation, memory element 305 is by institute
State the sequence after coded modulation to store；Sequence after main control unit 303 utilizes coded modulation completes transmitting-receiving
4-Way Handshake between end, sends reception unit 304 and the message that opposite end receiver is sent is passed to main control unit
303, and the control information sent by main control unit 303 is sent to opposite end receiver.
Here, embodiments provide one preferably embodiment, insert unit in described information
301, specifically for producing the training request data frame of receiving terminal link, responsive data frame, correct response message
Frame；For being respectively implanted for training receiving terminal link in the described required interactive control information sent
Request data frame, responsive data frame, correct response message data frame.
Here, for main control unit 303, describe for convenience and the main control unit of transmitting terminal be set to 303-1,
The main control unit of receiving terminal is set to 303-2, specifically for:
Transmitting terminal main control unit 303-1 sends solicited status to receiving terminal main control unit 303-2；
Receiving terminal main control unit 303-2 returns the sequence of responsive data frame to transmitting terminal main control unit 303-1；
Transmitting terminal main control unit 303-1 receives the sequence of the responsive data frame from receiving terminal main control unit 303-2
After row, send correct response message status to receiving terminal main control unit 303-2；
Receiving terminal main control unit 303-2 returns request data frame sequence to transmitting terminal main control unit 303-1；
Transmitting terminal main control unit 303-1 receives the request data frame sequence from receiving terminal main control unit 303-2
After, send responsive state to receiving terminal main control unit 303-2；
Receiving terminal main control unit 303-2 returns response data frame sequence or just to transmitting terminal main control unit 303-1
Message data frame sequence should indeed be answered；
Transmitting terminal main control unit 303-1 receives the correct response message count from receiving terminal main control unit 303-2
After reaching to arrange number according to the number of frame sequence, send Frame state to receiving terminal main control unit 303-2；
And when sending Frame, send data to receiving terminal main control unit 303-2 always；
As shown in Figure 4, in optical transmission system, synchronizer between sending and receiving end also includes:
Counting unit 307, for counting the correct response message data frame sequence received；
Here, described counting unit 307 is positioned in transmitting terminal receiver, and that sends receiving terminal just should indeed
Answer message data frame sequence to add up；
Unit 306 is set, receives receiving terminal for arranging transmitting terminal in described interactive control information
The number of correct response message data frame.
Concrete, as shown in Figure 4, the synchronizer between the optical transmission system sending and receiving end that the present embodiment provides,
Described information inserts unit 301, by produce training the request data frame of receiving terminal link, responsive data frame,
Correct response message data frame inserts a certain fixed position of the described required interactive control information sent, coding
Modulating unit 302 will encode containing the interactive control information of training receiving terminal link information and modulates,
Sequence after coded modulation；Then, send reception unit 304 sequence after described coded modulation to be sent
To the receiver of opposite end；Afterwards, receiving terminal main control unit 303 utilizes described coded modulation sequence to carry out four times
Shaking hands, during carrying out 4-Way Handshake, the counting unit 307 of transmitting terminal receives unit 304 to sending
The correct response message data frame sequence received counts, and arranges unit in number reaches transmitting terminal
After the 306 agreement numbers arranged, the main control unit 303 of notice transmitting terminal starts to send data.
It addition, in actual applications, described information inserts unit 301, coded modulation unit 302, master control list
Unit 303, send receive unit 304, memory element 305, arranging unit 306, counting unit 307 all can be by position
Central processing unit (Central Processing Unit, CPU) in terminal, microprocessor (Micro
Processor Unit, MPU), digital signal processor (Digital Signal Processor, DSP) or
Field programmable gate arrays (Field Programmable Gate Array, FPGA) etc. realize.
Synchronizer between sending and receiving end in the optical transmission system that the embodiment of the present invention provides, by with training
The interactive control information of receiving terminal link information, completes link during 4-Way Handshake, contributes to equity
Two nodes between quickly establish the link, and time established the link saved, can be used to send number
According to, increase the handling capacity of user data, meanwhile, 4-Way Handshake mechanism, facilitates receiving terminal to synchronize cleverly
It is aware of when Frame, which enhances the stability of whole system, furthermore, by receiving containing training
The epidemic situation comparison that the interactive control information of end link information makes two ends receiver be in is good, it is ensured that the
The success of one data frame decoding, simplifies receiving terminal and judges that whether the data received are some streams of Frame
Journey, has simplified the scheduling of whole receiver, is directly or indirectly beneficial to increase user throughput.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited to
This, any those familiar with the art, in the technical scope that the invention discloses, can readily occur in
Change or replacement, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should
It is as the criterion with described scope of the claims.
Claims (10)
1. synchronous method between sending and receiving end in an optical transmission system, it is characterised in that described method includes:
The information for training receiving terminal link is inserted in the interactive control information of required transmission；
Interactive control information containing training receiving terminal link information is encoded and modulates, obtains coding and adjust
Sequence after system；
The sequence after described coded modulation is utilized to complete the 4-Way Handshake between sending and receiving end.
Synchronous method the most according to claim 1, it is characterised in that described for training receiving terminal chain
The information on road, including:
Request data frame, responsive data frame, correct response message data frame.
Synchronous method the most according to claim 2, it is characterised in that described mutual to required transmission
Control information is inserted the information for training receiving terminal link, including:
The described required interactive control information sent is respectively implanted for train please described in receiving terminal link
Ask Frame, described responsive data frame, described correct response message data frame.
Synchronous method the most according to claim 3, it is characterised in that four times between described sending and receiving end
Shake hands and include:
Transmitting terminal sends solicited status to receiving terminal；Receiving terminal returns the sequence of responsive data frame to transmitting terminal；
Transmitting terminal receives after the sequence of the responsive data frame of receiving terminal, sends correct response to receiving terminal and disappears
Breath state；Receiving terminal returns request data frame sequence to transmitting terminal；
Transmitting terminal receives after the request data frame sequence of receiving terminal, sends responsive state to receiving terminal；Connect
Receiving end returns response data frame sequence or correct response message data frame sequence to transmitting terminal；
Transmitting terminal receives the number of the correct response message data frame sequence from receiving terminal and reaches to arrange number
After, send Frame state to receiving terminal；And when sending Frame, send to receiving terminal always
Data.
Synchronous method the most according to claim 4, it is characterised in that described agreement number is: arrange
In described interactive control information, transmitting terminal receive the number of correct response message data frame of receiving terminal.
6. synchronizer between sending and receiving end in an optical transmission system, it is characterised in that described device includes:
Information inserts unit, for inserting in the interactive control information of required transmission for training receiving terminal chain
The information on road, and generate the information of training receiving terminal link；
Coded modulation unit, for encoding the interactive control information containing training receiving terminal link information
And modulation, obtain the sequence after coded modulation；
Main control unit, the 4-Way Handshake that the sequence after utilizing described modulation completes between sending and receiving end；
Send and receive unit, be used for the sequence after sending described coded modulation, and reception opposite end sends over
Information；
Memory element, the sequence after the information storing described training receiving terminal link and described modulation.
Synchronizer the most according to claim 6, it is characterised in that described information inserts unit, tool
Body is for producing the training request data frame of receiving terminal link, responsive data frame, correct response message data frame.
Synchronizer the most according to claim 7, it is characterised in that described information inserts unit, tool
Body is for being respectively implanted the request for training receiving terminal link in the described required interactive control information sent
Frame, responsive data frame, correct response message data frame.
Synchronizer the most according to claim 8, it is characterised in that described main control unit, specifically uses
In:
Transmitting terminal sends solicited status to receiving terminal；Receiving terminal returns the sequence of responsive data frame to transmitting terminal；
Transmitting terminal receives after the sequence of the responsive data frame of receiving terminal, sends correct response to receiving terminal and disappears
Breath state；Receiving terminal returns request data frame sequence to transmitting terminal；
Transmitting terminal receives after the request data frame sequence of receiving terminal, sends responsive state to receiving terminal；Connect
Receiving end returns response data frame sequence or correct response message data frame sequence to transmitting terminal；
Transmitting terminal receives the number of the correct response message data frame sequence from receiving terminal and reaches to arrange number
After, send Frame state to receiving terminal；And when sending Frame, send to receiving terminal always
Data.
Synchronizer the most according to claim 9, it is characterised in that also include:
Counting unit, for counting the correct response message data frame sequence received；
Unit is set, receives the correct of receiving terminal for arranging transmitting terminal in described interactive control information
The number of response message data frame.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510391633.4A CN106330422A (en) | 2015-07-03 | 2015-07-03 | Synchronization method and device between receiving and transmitting terminals in optical transmission system |
| PCT/CN2016/088129 WO2017005139A1 (en) | 2015-07-03 | 2016-07-01 | Synchronization method and device for receiving and transmitting ends in optical transmission system, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510391633.4A CN106330422A (en) | 2015-07-03 | 2015-07-03 | Synchronization method and device between receiving and transmitting terminals in optical transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106330422A true CN106330422A (en) | 2017-01-11 |
Family
ID=57684748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510391633.4A Withdrawn CN106330422A (en) | 2015-07-03 | 2015-07-03 | Synchronization method and device between receiving and transmitting terminals in optical transmission system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106330422A (en) |
| WO (1) | WO2017005139A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237382A (en) * | 2007-01-31 | 2008-08-06 | 华为技术有限公司 | A method and system and network device for synchronizing user data |
| CN102333361A (en) * | 2011-09-07 | 2012-01-25 | 上海电机学院 | Media access control protocol of wireless sensor network |
| CN102752845A (en) * | 2012-07-27 | 2012-10-24 | 南开大学 | Time synchronization mechanism of ultrasonic stereotactic positioning system based on wireless sensor network |
| CN103378927A (en) * | 2012-04-20 | 2013-10-30 | 中兴通讯股份有限公司 | Data sending method and device |
| CN104702627A (en) * | 2015-04-01 | 2015-06-10 | 南京天溯自动化控制系统有限公司 | Packet classification-based synchronous concurrent communication method and system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7664171B2 (en) * | 2003-12-26 | 2010-02-16 | Zte Corporation | Uplink burst equalizing method in broad wide access system |
| CN101877633B (en) * | 2009-04-28 | 2014-06-04 | 华为技术有限公司 | Signal synchronizing method and system, signal receiving device and signal sending device |
| CN101873196B (en) * | 2010-05-27 | 2013-08-14 | 北京经纬恒润科技有限公司 | Method, system and interface card for transmitting data at high speed |
-
2015
- 2015-07-03 CN CN201510391633.4A patent/CN106330422A/en not_active Withdrawn
-
2016
- 2016-07-01 WO PCT/CN2016/088129 patent/WO2017005139A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237382A (en) * | 2007-01-31 | 2008-08-06 | 华为技术有限公司 | A method and system and network device for synchronizing user data |
| CN102333361A (en) * | 2011-09-07 | 2012-01-25 | 上海电机学院 | Media access control protocol of wireless sensor network |
| CN103378927A (en) * | 2012-04-20 | 2013-10-30 | 中兴通讯股份有限公司 | Data sending method and device |
| CN102752845A (en) * | 2012-07-27 | 2012-10-24 | 南开大学 | Time synchronization mechanism of ultrasonic stereotactic positioning system based on wireless sensor network |
| CN104702627A (en) * | 2015-04-01 | 2015-06-10 | 南京天溯自动化控制系统有限公司 | Packet classification-based synchronous concurrent communication method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017005139A1 (en) | 2017-01-12 |
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Application publication date: 20170111 |