CN106033252A - A three-way handshaking method and computer readable media - Google Patents
A three-way handshaking method and computer readable media Download PDFInfo
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Abstract
The invention provides a three-way handshaking method comprising the steps of controlling a first connecting port in a first specific mode to emit a first specific signal to a second connecting port and controlling the first connecting port to enter a second specific mode; when the first connecting port receives a second specific signal, judging that the second connecting port also enters the second specific mode and controlling the first connecting port to emit a third specific signal to the second connecting port; when judging that the second connecting port enters a third specific mode, controlling the first connecting port to enter the third specific mode. An operation mode finite-state machine of the invention is compatible with a vehicle Ethernet standard, a flexible method is provided for entry into a sleep mode, and the problem of power consumption of the vehicle Ethernet standard is solved.
Description
Technical field
Disclosure the disclosed embodiments relate to tripartite hand over hold method, particularly to one for automobile-used with
The too dormancy of network standard is initiated tripartite's friendship and is held method and related computer readable media.
Background technology
Ethernet has been considered as the master in automobile-used network infrastructure of new generation by automobile industry now
Stream scheme.Ethernet has higher frequency range, can meet the most emerging driving auxiliary and Infotainment
The application demands such as system.
Automobile industry, at aspects such as extension motility, low cost, low-power consumption and ruggedness, has relatively
Higher requirement.But, in automobile-used Ethernet standard (such as BR-PHY standard), not
Specification is carried out for actively line partner (link partner) being sent the request entering park mode.
In view of this, in automobile-used Ethernet standard, need a kind of method of innovation to provide automobile-used ether
The operating function that network standard is relevant, to improve the power consumption problem of automobile-used Ethernet standard.
Summary of the invention
One of purpose of the disclosure is that proposing a kind of dormancy for automobile-used Ethernet standard initiates
Tripartite hands over and holds method and related computer readable media, with to the technology met with in above-mentioned prior art
Problem gives a response.
According to the first one exemplary embodiment of the disclosure, open a kind of tripartite hands over and holds method, includes:
Control to be in one first connectivity port of one first AD HOC and send one first signal specific to one the
Two connectivity ports, and control this first connectivity port entrance one second AD HOC；When this first connection
Port receives one second signal specific, it is judged that this second connectivity port is also into this second specific mould
Formula, and control this first connectivity port and send one the 3rd signal specific to this second connectivity port；And
When judging that this second connectivity port enters three AD HOC, control this first connectivity port and enter
3rd AD HOC.
According to the second one exemplary embodiment of the disclosure, open a kind of tripartite hands over and holds method, includes:
When one second connectivity port being in one first AD HOC receives what one first connectivity port was sent
One first signal specific, it is judged that this first connectivity port has been enter into one second AD HOC, and controls to be somebody's turn to do
Second connectivity port is also into this second AD HOC and sends one second signal specific；And when being somebody's turn to do
Second connectivity port receives one the 3rd signal specific, controls this second connectivity port and enters one the 3rd spy
Mould-fixed.
According to the 3rd one exemplary embodiment of the disclosure, open a kind of computer readable media, store a journey
Sequence code, when this procedure code can be performed following steps time performed by one processor: control to be in one first
One first connectivity port of AD HOC sends one first signal specific to one second connectivity port, and controls
Make this first connectivity port and enter one second AD HOC；When this first connectivity port receives one second
Signal specific, it is judged that this second connectivity port is also into this second AD HOC, and controls this first company
Connect port and send one the 3rd signal specific to this second connectivity port；And when judging this second connection end
When mouth enters three AD HOC, control this first connectivity port and enter the 3rd AD HOC.
According to the 4th one exemplary embodiment of the disclosure, open a kind of computer readable media, store a journey
Sequence code, when this procedure code can be performed following steps time performed by one processor: special when being in one first
One second connectivity port of mould-fixed receives one first signal specific that one first connectivity port is sent,
Judge that this first connectivity port has been enter into one second AD HOC, and control this second connectivity port and also enter
Enter this second AD HOC and send one second signal specific；And when this second connectivity port receives
To one the 3rd signal specific, control this second connectivity port and enter one the 3rd AD HOC.
The operator scheme finite state machine of the disclosure is compatible in automobile-used Ethernet standard, is put into not
Sleep mode provides the method for motility, and then the power consumption improving automobile-used Ethernet standard is asked
Topic.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that disclosure tripartite hands over the embodiment holding flow process.
Fig. 2 is the schematic diagram of the embodiment of disclosure common time axle.
Fig. 3 is the flow chart that disclosure tripartite hands over an one exemplary embodiment of method of holding.
Fig. 4 is the flow chart that disclosure tripartite hands over another one exemplary embodiment of method of holding.
Fig. 5 is the schematic diagram of an embodiment of a computer system 500.
Description of reference numerals:
100 tripartites hand over and hold flow process
102～108 time points
200 confuse device
201 common time axles
202,204,206 time block
500 computer systems
502 processors
504 machine-readable mediums
Detailed description of the invention
Some vocabulary is employed to censure specific element in the middle of specification and claims.Belonging to
Technical staff in field is it is to be appreciated that same unit may be called with different nouns by manufacturer
Part.In the way of this specification and claims book not difference by title is used as distinguishing element, and
It is to be used as, with element difference functionally, the criterion distinguished.In specification and claims in the whole text
In the middle of mentioned " comprising " be for an open term, therefore should be construed to " comprise but do not limit
In ".It addition, " coupling " word is to comprise any directly and indirectly electrical connection at this.Cause
This, if a first device is coupled to one second device described in literary composition, then representing this first device can be direct
It is electrically connected in this second device, or is indirectly electrically connected to this by other devices or connection means
Second device.
Fig. 1 is that showing of the embodiment of (three-way handshaking) flow process is held in disclosure tripartite friendship
It is intended to.Tripartite in this embodiment hands over and holds flow process 100 is to be applied to one to be compatible to automobile-used Ethernet
In the product of standard (such as BR-PHY standard), but the disclosure does not limits with this.It is to say, three
Side hand over hold flow process 100 be also not excluded in be suitable in other same or like field relevant identical or
It it is similar standard/agreement.In this embodiment, the state flow process of left-hand side is one first connection end
Mouth is as the operating process of dormancy promoter (sleep master)；Dexter state flow process be this
The line partner of one connectivity port, one second connectivity port, as dormancy receiver (sleep slave)
Corresponding operating process, determined when dormancy promoter and the status of dormancy receiver and line
" main (link master) " " from (link slave) " is unrelated.It is to say, dormancy promoter is permissible
The line main formula determined after being based on automobile-used Ethernet standard line, it is also possible to be based on automobile-used with
The line determined after network standard line very much is from side.
Specifically, to be at one general this first connectivity port and this second connectivity port at the beginning
Pattern, at a time point 102, this first connectivity port is as dormancy promoter, by one first dormancy
Instruction (1stSleepcmd) encoded and send this second connectivity port to, this first connects end
Mouth also enters a sleep request pattern.This second connectivity port receives at a time point 104 and decodes
After this first dormancy instruction, if this second connectivity port is to be preset as a non-automatic pattern, then need
After treating a top level control unit agreement of this second connectivity port, one second dormancy can be confirmed
(2ndSleepack) encoded this first connectivity port that returns to, then this second connectivity port is same
Sample can enter this sleep request pattern；If this second connectivity port is to be preset as an automatic mode, the most not
This top level control unit needing to wait this second connectivity port is agreed to (or actually control without this upper strata
Unit processed), can certainly be about to this second dormancy confirms encoded to return to this first connectivity port, connects
This second connectivity port and can enter this sleep request pattern equally.
After this first connectivity port receives and decodes this second dormancy confirmation, if this first connectivity port
It is to be preset as this above-mentioned non-automatic pattern, then needs to wait a top level control of this first connectivity port
After unit is agreed to, can confirm to respond (3 by one the 3rdrdAckreply) encoded return to
This second connectivity port；If this first connectivity port is to be preset as this above-mentioned automatic mode, then it is not required to
Wait that this top level control unit of this first connectivity port is agreed to (or actually without this top level control
Unit), can certainly be about to the 3rd confirm to respond and encoded return to this second connectivity port.This is years old
Two connectivity ports, can be through first-class after a time point 106 receives and decode the 3rd confirmation response
Treat park mode subsequently into a park mode, it is about the difference of this automatically/non-automatic pattern and upper
State similar.It should be noted that according to automobile-used Ethernet standard, under this park mode, can cut off
Main power source (such as 3.3V power supply), and only power by battery supply.
Note that the agreement being not required under above-mentioned automatic mode through top level control unit just can perform phase
Corresponding operation, is i.e. not required to additionally issue an instruction to control corresponding behaviour through top level control unit
Making, the practice of its reality can be to use an instruction generation unit to replace top level control unit (such as
In the case of there is no top level control unit) automatically generate correspondence instruction, but the disclosure not as
Limit.
Finally, due to this second connectivity port initially enters dormancy at a time point 108, this first company
Connect port and can be immediately detected line failure, i.e. from the beginning of at time point 108, cable has detected not
The general signal sent to this second connectivity port, can be through this wait park mode subsequently into this
Park mode, it is similar with above-mentioned about the difference of this automatically/non-automatic pattern.
Because dormancy promoter and dormancy receiver are each independent, it is impossible to ensure to break at synchronization simultaneously
Electricity.Under a special status, such as tripartite hand over hold this second connectivity port in flow process 100 in time
Between put 106 entrance wait park modes, this first connectivity port the most just changes decision, example
Enter this park mode as being intended to stop this second connectivity port, then this situation cannot be replied.Need by this
Top level control unit intervention processes.
Because dormancy promoter determines through coordination with decision the non-predetermined of dormancy receiver, but first
The side initiating sleep request just becomes dormancy promoter, and the opposing party then becomes dormancy receiver.Separately
Under one special status, if simultaneously or initiate sleep request, i.e. both sides is all dormancy to both sides the most simultaneously
The role of promoter, the most just cannot constitute the tripartite of standard and hand over and hold flow process 100, the most also without
Method completes to enter the purpose of dormancy.Therefore disclosure tripartite hand over hold flow process 100 application this be compatible to
In the product of automobile-used Ethernet standard, can utilize this first connectivity port and this second connectivity port that
This altogether distribute this first connectivity port with time shaft and this second connectivity port can be initiated not
The absolute time block slept, for example, this common time axle is from confusing gained after device decodes
The other side's time arrived.
Fig. 2 is the schematic diagram of the embodiment of disclosure common time axle.One confuses device 200 meets automobile-used
The specification of Ethernet standard, it can produce cycle period is 233The one of the circulation of-1 unit of time
Common time axle 201.Common time axle 201 can be cut into three kinds of time blocks, the most multiple times
Block 202, multiple time block 204, multiple time block 206.Wherein time block 202 with
And the length of time block 204 can be 1024 unit of time, the length of time block 206 can
To be 256 unit of time.And in three kinds of time blocks, can specify that this first connectivity port is only
Dormancy promoter can be served as at time block 202；And this second connectivity port can only be at time block
206 serve as dormancy promoter.Time block 206 be then used as this first connectivity port and this second
Both sides, connectivity port time difference enough and to spare is used.
Fig. 3 is the flow chart that disclosure tripartite hands over an one exemplary embodiment of method of holding.If generally
Can reach identical result, it is not absolutely required to enter in accordance with the sequence of steps of flow process shown in Fig. 3
OK, and the step shown in Fig. 3 is not necessarily intended to be carried out continuously, that is other steps also can be inserted into wherein,
Additionally, some step in Fig. 3 also can carry out changing or saving according to different embodiments or design requirement
Slightly.Tripartite hands over the step holding method 300 as follows.
S302: pre-according to having altogether with time shaft institute by one first connectivity port and one second connectivity port
In the one first fixed specific interval period, control to be in this first connectivity port of one first AD HOC
Send one first signal specific to this second connectivity port, and control this first connectivity port and enter one the
Two AD HOC.
S304: when this first connectivity port receives one second signal specific, it is judged that this second connection end
Mouthful also into this second AD HOC, and after the agreement of a top level control unit, control this first
Connectivity port sends the 3rd signal specific to this second connectivity port.
S306: when from blackout received by this second connectivity port, it is judged that this second connects
Port enters one the 3rd AD HOC, and after the agreement of this top level control unit, control this first
Connectivity port enters the 3rd AD HOC.
S308: when this first connectivity port enters this park mode, close this first connectivity port
Power supply beyond battery supply.
Fig. 4 is the flow chart that disclosure tripartite hands over another one exemplary embodiment of method of holding.If substantially
On can reach identical result, it is not absolutely required to enter in accordance with the sequence of steps of flow process shown in Fig. 4
OK, and the step shown in Fig. 4 is not necessarily intended to be carried out continuously, that is other steps also can be inserted into wherein,
Additionally, some step in Fig. 4 also can carry out changing or saving according to different embodiments or design requirement
Slightly.Tripartite hands over the step holding method 400 as follows.
S402: pre-according to having altogether with time shaft institute by one first connectivity port and one second connectivity port
In the one first fixed specific interval period, when this second connectivity port being in one first AD HOC is received
One first signal specific sent to this first connectivity port, it is judged that this first connectivity port has been enter into
One second AD HOC, and after the agreement of a top level control unit, control this second connectivity port
Also into this second AD HOC and send one second signal specific.
S404: when this second connectivity port receives one the 3rd signal specific, and through this top level control
After the agreement of unit, control this second connectivity port and enter one the 3rd AD HOC.
S406: when this second connectivity port enters this park mode, close this second connectivity port
Power supply beyond battery supply.
Wherein this first connectivity port and this second connectivity port meet automobile-used Ethernet standard, and step
In rapid S304, S306, S402 and S404, also can be without the agreement of this top level control unit.
Fig. 5 is the schematic diagram of an embodiment of a computer system 500.Computer system 500 includes one
Processor 502 and a machine-readable medium 504, for example, computer system 500 can be one
PC, and computer readable media 504 can be any in PC to have data memory function
Storage device, such as volatile memory, nonvolatile memory, hard disk, CD etc..This
In embodiment, computer readable media 604 stores a procedure code PROG, therefore, works as procedure code
When PROG is loaded by processor 502 and performs, procedure code PROG can cause processor 502 to be held
Step S302 shown in row Fig. 3/Fig. 4～S308/S402～S406.Due to those skilled in the art in
Processor 502 program code PROG institute should be will readily appreciate that after reading the content of above paragraph
The operation carried out, therefore omit further description at this in the hope of succinctly.
The above-mentioned idea about the disclosure can be realized in any integrated circuit by quasiconductor.Such as
The disclosure can be realized in single quasiconductor designs, or realize at ASIC
And/or in any other subsystem.
The disclosure may utilize any suitable form and realizes, comprise hardware, software, firmware or with
On combination in any.At least partly the disclosure is optionally implemented as operating in one or more number
According to the electricity on processor and/or digital signal processor or configurable module component (such as FPGA)
Brain software.Therefore, the element that embodiment of the disclosure and assembly are physically, functionally and logically
Realize in any suitable manner.It practice, the function of the disclosure can be implemented in single unit,
Multiple unit or the part as other functional units.
Although the disclosure is already in connection with certain embodiments have been explanation, but the disclosure is not limited to this
Particular form in description illustrates.On the contrary, the scope of the present disclosure is only by appended claim
Limit.Although additionally, inventive features is probably and combines specific embodiment and describe, but the skill of this area
Art personnel are to be understood that the various features of described embodiment can be combined according to the disclosure.?
In claim, term " comprises " existence being not excluded for other elements or step.
Although additionally, multiple means, element or method are to be individually listed, but should may utilize the most single
Unit one, processor or controller realize.Although it addition, each feature can be contained in not
In same claim, but should be advantageously combined, and comprise in different claims the most unexpectedly
It is infeasible and/or favourable that taste the combination of feature.It addition, wrapped in a class claim
The feature contained is not intended to be limited to the category, but represents that this feature is equally applicable to other claim
Classification.
Additionally, the order that feature is in the claims be not meant to have to carry out any specific suitable
In sequence, and claim to a method, the order of each step is not meant to that these steps must be suitable according to this
Sequence performs.On the contrary, these steps can be performed in any suitable order.Additionally, odd number
Quote be not excluded for multiple.Therefore, the term such as " ", " first ", " second " is not precluded from multiple.
The operator scheme finite state machine of the disclosure is compatible in automobile-used Ethernet standard, is put into not
Sleep mode provides the method for motility, and then the power consumption improving automobile-used Ethernet standard is asked
Topic.
The foregoing is only the preferred embodiment of the disclosure, all equalizations done according to disclosure claim
Change and modification, all should belong to the covering scope of the disclosure.
Claims (21)
1. tripartite hands over and holds a method, includes:
One first connectivity port controlling to be in one first AD HOC sends one first signal specific extremely
One second connectivity port, and control this first connectivity port entrance one second AD HOC；
When this first connectivity port receives one second signal specific, it is judged that this second connectivity port is also entered
Enter this second AD HOC, and control this first connectivity port send one the 3rd signal specific to this second
Connectivity port；And
When judging that this second connectivity port enters three AD HOC, control this first connectivity port
Enter the 3rd AD HOC.
2. tripartite as claimed in claim 1 hands over and holds method, wherein this first connectivity port and this
Two connectivity ports meet automobile-used Ethernet standard.
3. tripartite as claimed in claim 1 hands over and holds method, and wherein the 3rd AD HOC comprises one
Wait park mode and a park mode, and this tripartite hand over the method for holding to additionally comprise:
When this first connectivity port enters this park mode, close the battery electricity of this first connectivity port
Power supply beyond source.
4. tripartite as claimed in claim 1 hands over and holds method, wherein when judging this second connectivity port
When entering three AD HOC, control this first connectivity port and enter the step of the 3rd AD HOC
Include:
When from blackout received by this second connectivity port, it is judged that this second connectivity port is entered
Enter the 3rd AD HOC, control this first connectivity port and enter the 3rd AD HOC.
5. tripartite as claimed in claim 1 hands over and holds method, wherein receives when this first connectivity port
To this second signal specific, it is judged that this second connectivity port is also into this second AD HOC, and controls
This first connectivity port sends the 3rd signal specific to the step of this second connectivity port and includes:
When this first connectivity port receives this second signal specific, it is judged that this second connectivity port is also entered
Enter this second AD HOC, and after the agreement of a top level control unit, control this first connection end
Mouth sends the 3rd signal specific to this second connectivity port.
6. tripartite as claimed in claim 1 hands over and holds method, wherein when judging this second connectivity port
When entering three AD HOC, control this first connectivity port and enter the step of the 3rd AD HOC
Include:
When judging that this second connectivity port enters three AD HOC, and through a top level control list
After the agreement of unit, control this first connectivity port and enter the 3rd AD HOC.
7. tripartite as claimed in claim 1 hands over and holds method, wherein controls to be in this first specific mould
This first connectivity port of formula sends this first signal specific to this second connectivity port, and control this
One connectivity port enters the step of this second AD HOC and includes:
Within one first specific interval period, control to be in this first connection end of this first AD HOC
Mouth sends this first signal specific to this second connectivity port, and control that this first connectivity port enters should
Second AD HOC.
8. tripartite as claimed in claim 7 hands over and holds method, and wherein this first specific interval period is
The most predetermined with time shaft according to having altogether by this first connectivity port and this second connectivity port.
9. tripartite hands over and holds a method, includes:
Sent out when one second connectivity port being in one first AD HOC receives one first connectivity port
One first signal specific gone out, it is judged that this first connectivity port has been enter into one second AD HOC, and controls
Make this second connectivity port and also into this second AD HOC and send one second signal specific；And
When this second connectivity port receives one the 3rd signal specific, control this second connectivity port and enter
One the 3rd AD HOC.
10. tripartite as claimed in claim 9 hands over and holds method, wherein this first connectivity port and this
Two connectivity ports meet automobile-used Ethernet standard.
11. tripartites as claimed in claim 9 hand over and hold method, and wherein the 3rd AD HOC comprises one
Wait park mode and a park mode, and this tripartite hand over the method for holding to additionally comprise:
When this second connectivity port enters this park mode, close the battery electricity of this second connectivity port
Power supply beyond source.
12. tripartites as claimed in claim 9 hand over and hold method, wherein when being in this first AD HOC
This second connectivity port receive this first signal specific that this first connectivity port is sent, it is judged that should
First connectivity port has been enter into this second AD HOC, and control this second connectivity port also into this
Two AD HOC and send the step of this second signal specific and include:
Sent out when this second connectivity port being in this first AD HOC receives this first connectivity port
This first signal specific gone out, it is judged that this first connectivity port has been enter into this second AD HOC, and warp
After crossing the agreement of a top level control unit, control this second connectivity port also into this second AD HOC
And send this second signal specific.
13. tripartites as claimed in claim 9 hand over and hold method, wherein receive when this second connectivity port
To the 3rd signal specific, control the step that this second connectivity port enters the 3rd AD HOC and comprise
Have:
When this second connectivity port receives the 3rd signal specific, and through a top level control unit
After agreement, control this second connectivity port and enter the 3rd AD HOC.
14. tripartites as claimed in claim 9 hand over and hold method, wherein when being in this first AD HOC
This second connectivity port receive this first signal specific that this first connectivity port is sent, it is judged that should
First connectivity port has been enter into this second AD HOC, and control this second connectivity port also into this
Two AD HOC and send the step of this second signal specific and include:
Within one first specific interval period, when this second connectivity port being in this first AD HOC
Receive this first signal specific that this first connectivity port is sent, it is judged that this first connectivity port is entered
Enter this second AD HOC, and control this second connectivity port and also into this second AD HOC and send out
Go out this second signal specific.
15. tripartites as claimed in claim 14 hand over and hold method, wherein this first specific interval period
By this first connectivity port and this second connectivity port according to altogether with time shaft predetermined.
16. 1 kinds of computer readable media, store a procedure code, when this procedure code is held by a processor
Following steps can be performed during row:
One first connectivity port controlling to be in one first AD HOC sends one first signal specific extremely
One second connectivity port, and control this first connectivity port entrance one second AD HOC；
When this first connectivity port receives one second signal specific, it is judged that this second connectivity port is also entered
Enter this second AD HOC, and control this first connectivity port send one the 3rd signal specific to this second
Connectivity port；And
When judging that this second connectivity port enters three AD HOC, control this first connectivity port
Enter the 3rd AD HOC.
17. computer readable media as claimed in claim 16, wherein this first connectivity port and should
Second connectivity port meets automobile-used Ethernet standard.
18. computer readable media as claimed in claim 16, wherein the 3rd AD HOC comprises
One waits park mode and a park mode, and when this procedure code is by another time performed by a processor
Can perform following steps:
When this first connectivity port enters this park mode, close the battery electricity of this first connectivity port
Power supply beyond source.
19. 1 kinds of computer readable media, store a procedure code, when this procedure code is held by a processor
Following steps can be performed during row, include:
Sent out when one second connectivity port being in one first AD HOC receives one first connectivity port
One first signal specific gone out, it is judged that this first connectivity port has been enter into one second AD HOC, and controls
Make this second connectivity port and also into this second AD HOC and send one second signal specific；And
When this second connectivity port receives one the 3rd signal specific, control this second connectivity port and enter
One the 3rd AD HOC.
20. computer readable media as claimed in claim 19, wherein this first connectivity port and should
Second connectivity port meets automobile-used Ethernet standard.
21. computer readable media as claimed in claim 19, wherein the 3rd AD HOC comprises
One waits park mode and a park mode, and when this procedure code is by meeting time performed by a processor
Separately perform following steps:
When this second connectivity port enters this park mode, close the battery electricity of this second connectivity port
Power supply beyond source.
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