CN106230538A - A kind of single carrier point-to-point time-division two-way wireless communication method - Google Patents
A kind of single carrier point-to-point time-division two-way wireless communication method Download PDFInfo
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- CN106230538A CN106230538A CN201610603663.1A CN201610603663A CN106230538A CN 106230538 A CN106230538 A CN 106230538A CN 201610603663 A CN201610603663 A CN 201610603663A CN 106230538 A CN106230538 A CN 106230538A
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- frame
- point
- remote equipment
- proximal device
- sends
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0602—Systems characterised by the synchronising information used
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0647—Synchronisation among TDM nodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
Abstract
The present invention relates to a kind of single carrier point-to-point time-division two-way wireless communication method.The present invention uses the thinking of burst mode, and frame structure is made up of HEAD and DATA two parts, and wherein HEAD is mainly used in sign synchronization, can play the function of search frame；The present invention is that carrier synchronization method based on the special word of HEAD devises bi-directional synchronization mechanism dexterously.The present invention achieves the transmitted in both directions function of single carrier point to point wireless communication system by time-multiplexed method, implementation method complexity is low, dependable performance, upstream and downstream bandwidth distribution simultaneously is flexibly, it is adaptable to the point-to-point of field such as image, voice and Industry Control are wirelessly transferred application；What the synchronizing process of the present invention only make use of sign synchronization searches frame function, it is not necessary to just shake hands after the data demodulating and decoding of opposite end.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of single carrier point-to-point time-division two-way wireless communication method.
Background technology
Wireless communication system realizes two-way method mainly time division multiplex (TDD) and frequency division multiplexing (FDD) two kinds.
FDD is received and transmitted on two the symmetrical frequency channels separated, and separates reception channel by protection frequency range
With transmission channel.FDD must use paired frequency, relies on frequency to carry out differentiating uplink and downlink link, its unidirectional resource time
It it is continuous print between.FDD, when supporting symmetrical service, can make full use of the frequency spectrum of up-downgoing, but when supporting non-symmetrical service,
The availability of frequency spectrum will be substantially reduced；Additionally also needing to the isolation of one fixed width between up-downgoing frequency spectrum, guarantee up-downgoing is led to
Letter will not interfere with each other.Frequency spectrum resource is nervous at present, especially in point-to-point transmission systematic difference field, can open use
Frequency spectrum resource is not the most sufficient.
TDD separates reception with the time and sends channel, in the mobile communication system of TDD mode, receives and sends
Using the different time-gap carrying as channel of same frequency carrier, its unidirectional resource is discontinuous in time, time
Between resource distributed in the two directions.Owing to the time resource of TDD mode has given uplink and downlink, respectively from folk prescription
To efficiency of transmission on for not as good as FDD system.
Summary of the invention
For problems of the prior art, it is an object of the invention to propose a kind of single carrier point-to-point time-division two-way
Wireless communications method.
Described two-way wireless communication method of a kind of single carrier point-to-point time-division, it is characterised in that: include proximal device and
Remote equipment；
The communication steps of proximal device is as follows:
J1: proximal device enters and initially sends state；
J2: proximal device sends Frame, sends reception state of opening after terminating, when in a second, proximal device searches far-end and sets
The Frame that preparation is sent, then, after waiting that remote equipment transmission terminates, reach once to shake hands, and count number of times of shaking hands；When near in a second
End equipment does not search the Frame that remote equipment sends, and reenters step J1, and counting how many times of simultaneously shaking hands resets；
J3: number of times reaches n times when shaking hands, then enter synchronous regime；Otherwise repeat step J2；
After J4: proximal device and remote equipment enter synchronous regime, both sides send Frame according to the time slot synchronized；Work as near-end
Equipment receives the Frame that remote equipment sends in sending a second after terminating, and the most again sends, and synchronous regime continues
Continuous；When being not received by the Frame that remote equipment sends in a second, synchronous regime is interrupted, then repeat step J1；
The communication steps of remote equipment is as follows:
Y1: remote equipment enters and initially receives state；
Y2: when remote equipment searches the Frame that proximal device sends, after waiting that proximal device transmission terminates, remote equipment
Send Frame, send and reach once to shake hands after terminating, count number of times of shaking hands；
Y3: remote equipment sends after terminating, and opens reception state, when searching again for the data that proximal device sends in the b second
Frame, repeats step Y2；If not searching the Frame that proximal device sends in the b second, then repeat step Y1, meter of simultaneously shaking hands
Number resets；
Y4: number of times reaches n times when shaking hands, proximally and distally enters synchronous regime；Otherwise repeat step Y2 and Y3；
After Y5: remote equipment enters synchronous regime, both sides send Frame according to respective time slot；When far-end is after transmission terminates
The b second in receive proximal device send Frame, the most again send, synchronous regime continue；When not receiving in the b second
The Frame sent to proximal device, synchronous regime is interrupted, then repeat step Y1.
Described two-way wireless communication method of a kind of single carrier point-to-point time-division, it is characterised in that: described proximal device
Original state is defaulted as transmission state, and the original state of described remote equipment is defaulted as reception state.
Described two-way wireless communication method of a kind of single carrier point-to-point time-division, it is characterised in that: described proximal device and
Described remote equipment be all transmission state different with reception state time exist.
Described two-way wireless communication method of a kind of single carrier point-to-point time-division, it is characterised in that: described a and b is all root
It is configured according to communication requirement.
Described two-way wireless communication method of a kind of single carrier point-to-point time-division, it is characterised in that: described N is according to channel
Environment is configured.
Described two-way wireless communication method of a kind of single carrier point-to-point time-division, it is characterised in that: the knot of described Frame
Structure includes HEAD and DATA.
Described two-way wireless communication method of a kind of single carrier point-to-point time-division, it is characterised in that: described proximal device and
The method of remote equipment searching and detecting Frame is all based on the carrier synchronization method of the special word of HEAD.
The invention have the benefit that
1. the present invention achieves the transmitted in both directions function of single carrier point to point wireless communication system by time-multiplexed method,
Implementation method complexity is low, dependable performance, and upstream and downstream bandwidth distribution simultaneously is flexibly, it is adaptable to image, voice and Industry Control etc.
The point-to-point of field is wirelessly transferred application；
2. what the synchronizing process of the present invention only make use of sign synchronization searches frame function, it is not necessary to by the data demodulating and decoding of opposite end
Rear just shake hands, because the sensitivity of sign synchronization is far above the sensitivity of data, when the wireless environment or the transmission that are in complexity
Distance reaches capacity, and error code have occurred in data, and sign synchronization can also normally work；
3. the parameter flexible configuration of proximal device and remote equipment, including the time span sent, modulating mode the most every time
Deng, it is particularly well-suited to the channel application of asymmetric code check；
4. what synchronization mechanism utilized is the carrier synchronization of HEAD, it is to avoid more complicated time calibration, and by carrier synchronization
Method also can be applicable to different operating distances flexibly；
5. the present invention is greatly improved spectrum utilization efficiency, reduces product area and reduce the advantages such as power consumption.
Detailed description of the invention
Below the present invention is described in detail.
The present invention uses the thinking of burst mode, and frame structure is made up of HEAD and DATA two parts, wherein HEAD master
Sign synchronization to be used for, can play the function of search frame；The present invention is that carrier synchronization method based on the special word of HEAD is ingenious
Devise bi-directional synchronization mechanism.
The key point of time division multiplex (TDD) is the synchronization on proximal device and remote equipment time slot to be accomplished, each leisure
The one's own time sends signal, receives signal in the time set, and thus requires that equipment initializes or in transmission at electricity
The when that way occurring abnormal, proximal device and remote equipment can have a process entering synchronous regime.
Synchronization mechanism is through frame synchronization several times and shakes hands, and allows proximal device and remote equipment enter time division synchronous state,
Avoid the occurrence of remote equipment and proximal device all stops transmission or situation about simultaneously sending.
A and b in the present invention is all to be configured according to communication requirement, and N is to be configured according to channel circumstance.Near-end sets
Standby and remote equipment is before entering synchronous regime, and the Frame size of transmission is one Frame of a time slot；Enter and synchronize
After state, a time slot can continuously transmit multiple Frame, and quantity can configure according to demand.
The thinking of the bi-directional mechanism of the present invention is:
1) proximal device with remote equipment be all transmission state different with reception state time exist；
2) proximal device initial default sends state, and remote equipment initial default receives state；
3) only after the frame head that opposite end sends being detected, then after the length of one Frame of time delay, transmission state is opened；
4) both sides reach after n times shake hands, to enter synchronous regime；
5) when mistake occurs in synchronization mechanism, two ends are returned to default conditions.
The communication steps of proximal device is as follows:
J1: proximal device enters and initially sends state；
J2: proximal device sends Frame, sends reception state of opening after terminating, when in a second, proximal device searches far-end and sets
The Frame that preparation is sent, then, after waiting that remote equipment transmission terminates, reach once to shake hands, and count number of times of shaking hands；When near in a second
End equipment does not search the Frame that remote equipment sends, and reenters step J1, and counting how many times of simultaneously shaking hands resets；
J3: number of times reaches n times when shaking hands, then enter synchronous regime；Otherwise repeat step J2；
After J4: proximal device and remote equipment enter synchronous regime, both sides send Frame according to the time slot synchronized；Work as near-end
Equipment receives the Frame that remote equipment sends in sending a second after terminating, and the most again sends, and synchronous regime continues
Continuous；When being not received by the Frame that remote equipment sends in a second, synchronous regime is interrupted, then repeat step J1；
The communication steps of remote equipment is as follows:
Y1: remote equipment enters and initially receives state；
Y2: when remote equipment searches the Frame that proximal device sends, after waiting that proximal device transmission terminates, remote equipment
Send Frame, send and reach once to shake hands after terminating, count number of times of shaking hands；
Y3: remote equipment sends after terminating, and opens reception state, when searching again for the data that proximal device sends in the b second
Frame, repeats step Y2；If not searching the Frame that proximal device sends in the b second, then repeat step Y1, meter of simultaneously shaking hands
Number resets；
Y4: number of times reaches n times when shaking hands, proximally and distally enters synchronous regime；Otherwise repeat step Y2 and Y3；
After Y5: remote equipment enters synchronous regime, both sides send Frame according to respective time slot；When far-end is after transmission terminates
The b second in receive proximal device send Frame, the most again send, synchronous regime continue；When not receiving in the b second
The Frame sent to proximal device, synchronous regime is interrupted, then repeat step Y1.
Claims (7)
1. a single carrier point-to-point time-division two-way wireless communication method, it is characterised in that: include proximal device and remote equipment；
The communication steps of proximal device is as follows:
J1: proximal device enters and initially sends state；
J2: proximal device sends Frame, sends reception state of opening after terminating, when in a second, proximal device searches far-end and sets
The Frame that preparation is sent, then, after waiting that remote equipment transmission terminates, reach once to shake hands, and count number of times of shaking hands；When near in a second
End equipment does not search the Frame that remote equipment sends, and reenters step J1, and counting how many times of simultaneously shaking hands resets；
J3: number of times reaches n times when shaking hands, then enter synchronous regime；Otherwise repeat step J2；
After J4: proximal device and remote equipment enter synchronous regime, both sides send Frame according to the time slot synchronized；Work as near-end
Equipment receives the Frame that remote equipment sends in sending a second after terminating, and the most again sends, and synchronous regime continues
Continuous；When being not received by the Frame that remote equipment sends in a second, synchronous regime is interrupted, then repeat step J1；
The communication steps of remote equipment is as follows:
Y1: remote equipment enters and initially receives state；
Y2: when remote equipment searches the Frame that proximal device sends, after waiting that proximal device transmission terminates, remote equipment
Send Frame, send and reach once to shake hands after terminating, count number of times of shaking hands；
Y3: remote equipment sends after terminating, and opens reception state, when searching again for the data that proximal device sends in the b second
Frame, repeats step Y2；If not searching the Frame that proximal device sends in the b second, then repeat step Y1, meter of simultaneously shaking hands
Number resets；
Y4: number of times reaches n times when shaking hands, proximally and distally enters synchronous regime；Otherwise repeat step Y2 and Y3；
After Y5: remote equipment enters synchronous regime, both sides send Frame according to respective time slot；When far-end is after transmission terminates
The b second in receive proximal device send Frame, the most again send, synchronous regime continue；When not receiving in the b second
The Frame sent to proximal device, synchronous regime is interrupted, then repeat step Y1.
A kind of single carrier point-to-point time-division two-way wireless communication method the most according to claim 1, it is characterised in that: described
The original state of proximal device is defaulted as transmission state, and the original state of described remote equipment is defaulted as reception state.
A kind of single carrier point-to-point time-division two-way wireless communication method the most according to claim 1 and 2, it is characterised in that:
Described proximal device and described remote equipment be all transmission state different with reception state time exist.
A kind of single carrier point-to-point time-division two-way wireless communication method the most according to claim 1, it is characterised in that: described
A and b is all to be configured according to communication requirement.
A kind of single carrier point-to-point time-division two-way wireless communication method the most according to claim 1, it is characterised in that: described
N is to be configured according to channel circumstance.
A kind of single carrier point-to-point time-division two-way wireless communication method the most according to claim 1, it is characterised in that: described
The structure of Frame includes HEAD and DATA.
A kind of single carrier point-to-point time-division two-way wireless communication method the most according to claim 6, it is characterised in that: described
The method of proximal device and remote equipment searching and detecting Frame is all based on the carrier synchronization method of the special word of HEAD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610603663.1A CN106230538B (en) | 2016-07-28 | 2016-07-28 | A kind of point-to-point time-division two-way wireless communication method of single carrier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610603663.1A CN106230538B (en) | 2016-07-28 | 2016-07-28 | A kind of point-to-point time-division two-way wireless communication method of single carrier |
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| CN106230538A true CN106230538A (en) | 2016-12-14 |
| CN106230538B CN106230538B (en) | 2018-08-24 |
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| CN201610603663.1A Active CN106230538B (en) | 2016-07-28 | 2016-07-28 | A kind of point-to-point time-division two-way wireless communication method of single carrier |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107124753A (en) * | 2017-07-01 | 2017-09-01 | 合肥众志行云科技有限公司 | A kind of wireless terminal two-way communication |
| CN109561396A (en) * | 2018-12-13 | 2019-04-02 | 浙江天则通信技术有限公司 | A kind of data transmission system for robot |
| CN109586829A (en) * | 2018-11-12 | 2019-04-05 | 北京邮电大学 | The method for synchronizing time and system communicated based on end-to-end molecule |
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| CN104281558A (en) * | 2013-07-01 | 2015-01-14 | 华为技术有限公司 | Online updating method and chip |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107124753A (en) * | 2017-07-01 | 2017-09-01 | 合肥众志行云科技有限公司 | A kind of wireless terminal two-way communication |
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| CN109586829A (en) * | 2018-11-12 | 2019-04-05 | 北京邮电大学 | The method for synchronizing time and system communicated based on end-to-end molecule |
| CN109561396A (en) * | 2018-12-13 | 2019-04-02 | 浙江天则通信技术有限公司 | A kind of data transmission system for robot |
| CN109561396B (en) * | 2018-12-13 | 2021-03-02 | 浙江天则通信技术有限公司 | Data transmission system for robot |
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| CN106230538B (en) | 2018-08-24 |
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