CN109347589A - A kind of data transmission method and network node - Google Patents
A kind of data transmission method and network node Download PDFInfo
- Publication number
- CN109347589A CN109347589A CN201811195635.6A CN201811195635A CN109347589A CN 109347589 A CN109347589 A CN 109347589A CN 201811195635 A CN201811195635 A CN 201811195635A CN 109347589 A CN109347589 A CN 109347589A
- Authority
- CN
- China
- Prior art keywords
- notice message
- network node
- time precision
- hop count
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- H04J3/0658—Clock or time synchronisation among packet nodes
- H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
- H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
Abstract
The present invention provides a kind of data transmission method and network node.This method is applied to the first network node in network system, the described method includes: the first notice message transmitted in network system is obtained, wherein including: the time precision of at least network node passed through when first notice message transmission in first notice message；The hop count information for the network node with the time precision that first notice message is passed through when transmitting.This method is by carrying the time precision of network node and passing through the hop count information with the network node of the time precision in the notice message transmitted in network system, so that for indicating that the precision information of the transmission shape of intermediate equipment is transmitted to upstream device in network system, upstream device can obtain the specific precision information, to facilitate the performance and O&M of synchronizing network.
Description
Technical field
The present invention relates to technical field of data transmission, a kind of data transmission method and network node are referred in particular to.
Background technique
The business of the systems such as mobile communication system, finance, electric power needs the time synchronization between node.Network latency
Split-second precision requirement can be met using Precision Time Protocol (Precision Time Protocol, PTP).PTP time synchronization
It is carried out using delay computing mechanism, master-slave equipment port passes through interaction PTP message, calculates the path delay between master-slave equipment
And time migration, realize the time synchronization between master-slave equipment.
By the information such as notice synchronisation source and synchronous hop count in existing PTP protocol, upstream device is enable to know network
It state and selects source, realizes time synchronization.However, the distinct device of go-between can as the technology of PTP network and equipment develops
There can be different time precisions, some equipment precisions are higher, some equipment precisions are relatively low, and the equipment in network can
There can be multiple and different accuracy classes.
The precision information of go-between can not be passed to upstream device by the prior art, be will cause downstream and obtained information not
Entirely, it is likely to result in selection time source and does not choose optimal time source.
Summary of the invention
The purpose of the present invention is to provide a kind of data transmission method and network nodes, for solving prior art communication network
The time synchronizing method of data transmission in network, upstream device can not precisely obtain asking for the transmission state of intermediate network node
Topic.
The embodiment of the present invention provides a kind of data transmission method, applied to the first network node in network system, wherein
The described method includes:
The first notice message transmitted in network system is obtained, wherein including: in first notice message
The time precision for at least network node that first notice message is passed through when transmitting；
The hop count information for the network node with the time precision that first notice message is passed through when transmitting.
Preferably, the data transmission method, wherein include multiple and different time essences in first notice message
Degree, each time precision respectively correspond a hop count information.
Preferably, the data transmission method, wherein multiple time precisions include the first notice message institute
The time precision of each network node passed through.
Preferably, the data transmission method, wherein multiple time precisions include the first notice message institute
The time precision of each network node in addition to third network node passed through.
Preferably, the data transmission method, wherein the third network node has default time precision.
Preferably, the data transmission method, wherein described to obtain the first notice message transmitted in network system
The step of after, the method also includes:
The second network node into network system sends the second notice message；
Wherein, there is time precision identical with the time precision of the first network node in first notice message
When, it include each time precision in first notice message in second notice message and corresponding with each time precision
Hop count information, wherein hop count information corresponding with the time precision of the first network node adds 1 in the hop count information.
Preferably, the data transmission method, wherein described to obtain the first notice message transmitted in network system
The step of after, the method also includes:
The second network node into network system sends the second notice message；
Wherein, there is no time essences identical with the time precision of the first network node in first notice message
When spending, reported in second notice message including each time precision in first notice message and with first notice
The corresponding hop count information of each time precision in text；Further include in second notice message first network node when
Between precision and first hop-information corresponding with the time precision of the first network node.
Preferably, the data transmission method, wherein described to obtain the first notice message transmitted in network system
The step of after, the method also includes:
The second network node into network system sends the second notice message；
Wherein, there is no time essences identical with the time precision of the first network node in first notice message
Degree, the and when time precision of the first network node is default time precision includes described the in second notice message
Each time precision and hop count information corresponding with each time precision in one notice message.
Preferably, the data transmission method, wherein included first notice in second notice message
The time precision of time precision and the first network node in message, is ranked up according to represented accurate values size；
Alternatively, the time precision of the first network node is recorded in first notice in second notice message
After time precision in message.
Preferably, the data transmission method, wherein the method also includes:
According to the time precision and the hop count information in first notice message, calculates first notice message and exist
The Link Time precision transmitted in the network system.
Preferably, the data transmission method, wherein the time precision according in first notice message and
The hop count information, calculating the Link Time precision that first notice message is transmitted in the network system includes:
When multiple time precisions included in first notice message include that first notice message is passed through
When the time precision for each network node crossed, the Link Time precision T is calculated in the following way:
T=A1 × a1+A2 × a2+A2 × a2+ ...+An × an；
Wherein, A1, A2, A3 ..., An be respectively the time precision that is recorded in first notice message, a1, a2,
A3 ..., an be respectively with A1, A2, A3 ..., the corresponding hop count information of An.
Preferably, the data transmission method, wherein the time precision according in first notice message and
The hop count information, calculating the Link Time precision that first notice message is transmitted in the network system includes:
When multiple time precisions included in first notice message, including being passed through except third network section
The time precision of each network node except point, when the third network node has default time precision, using such as lower section
Formula calculates the Link Time precision T:
T=A1 × a1+A2 × a2+A2 × a2+ ...+An × an+B × (C-a1-a2-a3- ...-an)
Wherein, A1, A2, A3 ..., An be respectively the time precision that is recorded in first notice message, a1, a2,
A3 ..., an be respectively with A1, A2, A3 ..., the corresponding hop count information of An；B is default time precision, and C is first notice
The total hop count for the network node that message is passed through.
Preferably, the data transmission method, wherein the time precision and the hop count information are recorded in described the
In the type-length-value TLV extension information of one notice message.
Preferably, the data transmission method, wherein the field length of the TLV extension information is adjustable, for recording
The field format of the time precision and the hop count information is respectively to fix.
Preferably, the data transmission method, wherein the field length of the TLV extension information is definite value, described
It includes multiple fields for being respectively used to record the time precision and the hop count information in information that TLV, which extends,.
Preferably, the data transmission method, wherein directly record the time respectively in TLV extension information
The specific value of precision and the hop count information.
Preferably, the data transmission method, wherein the TLV extension information in, the time precision it is specific
Numerical value is recorded with corresponding instruction code.
Preferably, the data transmission method, wherein it include an identification marking in first notice message, it is described
Identification marking is used to indicate in first notice message and carries the time precision and the hop count information.
The embodiment of the present invention also provides a kind of network node, wherein the network node is first network node, including place
Reason device and transceiver, the processor are used for:
The first notice message transmitted in network system is obtained, wherein including: in first notice message
The time precision for at least network node that first notice message is passed through when transmitting；
The hop count information for the network node with the time precision that first notice message is passed through when transmitting.
Optionally, the network node, wherein it include multiple and different time precisions in first notice message,
Each time precision respectively corresponds a hop count information.
Optionally, the network node, wherein multiple time precisions include that first notice message is passed through
Each network node time precision.
Optionally, the network node, wherein multiple time precisions include that first notice message is passed through
Each network node in addition to third network node time precision.
Optionally, the network node, wherein the third network node has default time precision.
Optionally, the network node, wherein after obtaining the first notice message transmitted in network system,
The processor is also used to:
The second network node into network system sends the second notice message；
Wherein, there is time precision identical with the time precision of the first network node in first notice message
When, it include each time precision in first notice message in second notice message and corresponding with each time precision
Hop count information, wherein hop count information corresponding with the time precision of the first network node adds 1 in the hop count information.
Optionally, the network node, wherein after obtaining the first notice message transmitted in network system,
The processor is also used to:
The second network node into network system sends the second notice message；
Wherein, there is no time essences identical with the time precision of the first network node in first notice message
When spending, reported in second notice message including each time precision in first notice message and with first notice
The corresponding hop count information of each time precision in text；Further include in second notice message first network node when
Between precision and first hop-information corresponding with the time precision of the first network node.
Optionally, the network node, wherein after obtaining the first notice message transmitted in network system,
The processor is also used to:
The second network node into network system sends the second notice message；
Wherein, there is no time essences identical with the time precision of the first network node in first notice message
Degree, the and when time precision of the first network node is default time precision includes described the in second notice message
Each time precision and hop count information corresponding with each time precision in one notice message.
Optionally, the network node, wherein included first notice message in second notice message
In time precision and the first network node time precision, be ranked up according to represented accurate values size；
Alternatively, the time precision of the first network node is recorded in first notice in second notice message
After time precision in message.
Optionally, the network node, wherein the processor is also used to:
According to the time precision and the hop count information in first notice message, calculates first notice message and exist
The Link Time precision transmitted in the network system.
Optionally, the network node, wherein the processor is according to the time precision in first notice message
With the hop count information, calculates the Link Time precision that first notice message is transmitted in the network system and specifically use
In:
When multiple time precisions included in first notice message include that first notice message is passed through
When the time precision for each network node crossed, the Link Time precision T is calculated in the following way:
T=A1 × a1+A2 × a2+A2 × a2+ ...+An × an；
Wherein, A1, A2, A3 ..., An be respectively the time precision that is recorded in first notice message, a1, a2,
A3 ..., an be respectively with A1, A2, A3 ..., the corresponding hop count information of An.
Optionally, the network node, wherein the processor is according to the time precision in first notice message
With the hop count information, calculates the Link Time precision that first notice message is transmitted in the network system and specifically use
In:
When multiple time precisions included in first notice message, including being passed through except third network section
The time precision of each network node except point, when the third network node has default time precision, using such as lower section
Formula calculates the Link Time precision T:
T=A1 × a1+A2 × a2+A2 × a2+ ...+An × an+B × (C-a1-a2-a3- ...-an)
Wherein, A1, A2, A3 ..., An be respectively the time precision that is recorded in first notice message, a1, a2,
A3 ..., an be respectively with A1, A2, A3 ..., the corresponding hop count information of An；B is default time precision, and C is first notice
The total hop count for the network node that message is passed through.
Optionally, the network node, wherein the time precision and the hop count information are recorded in described first and lead to
Know in the type-length-value TLV extension information of message.
Optionally, the network node, wherein the field length of the TLV extension information is adjustable, described for recording
The field format of time precision and the hop count information is respectively to fix.
Optionally, the network node, wherein the field length of the TLV extension information is definite value, and the TLV expands
Opening up includes multiple fields for being respectively used to record the time precision and the hop count information in information.
Optionally, the network node, wherein directly record the time precision respectively in TLV extension information
With the specific value of the hop count information.
Optionally, the network node, wherein in TLV extension information, the specific value of the time precision
It is recorded with corresponding instruction code.
Optionally, the network node, wherein include an identification marking, the identification in first notice message
Mark, which is used to indicate in first notice message, carries the time precision and the hop count information.
The embodiment of the present invention also provides a kind of network node, including memory, processor and is stored on the memory
And the program that can be run on the processor；Wherein, it is realized described in any one as above when the processor executes described program
Data transmission method.
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored thereon with computer program, wherein institute
State the step realized in as above described in any item data transmission methods when program is executed by processor.
At least one of above-mentioned technical proposal of the present invention has the advantages that
Data transmission method described in the embodiment of the present invention, by carrying net in the notice message transmitted in network system
The time precision of network node and the hop count information for passing through the network node with the time precision, so that being used in network system
It is transmitted to upstream device in the precision information for the transmission shape for indicating intermediate equipment, upstream device can obtain the specific precision letter
Breath, to facilitate the performance and O&M of synchronizing network.
Detailed description of the invention
Fig. 1 is the application system configuration diagram using data transmission method described in the embodiment of the present invention；
Fig. 2 is the flow diagram of data transmission method described in the embodiment of the present invention；
Fig. 3 is one of the part flow diagram of data transmission method described in the embodiment of the present invention；
Fig. 4 is the two of the part flow diagram of data transmission method described in the embodiment of the present invention；
Fig. 5 is the note of time precision and hop count information in notice message in data transmission method described in the embodiment of the present invention
Record form schematic diagram；
Fig. 6 is the structural schematic diagram of the network node of first embodiment of the embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the network node of second embodiment of the embodiment of the present invention.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
Fig. 1 is the application system configuration diagram of data transmission method described in the embodiment of the present invention.As shown in fig.1, institute
Data transmission method is stated to be applied in the network system including multiple network nodes 10.In the network system, each network node
It can be wireless connection between 10, or wired connection.
In the present invention, the network node 10 in network system can be transmission device, for example switch or router etc..Separately
Outside, network node 10 or mobile phone, tablet computer, laptop, Ultra-Mobile PC (Ultra-Mobile
Personal Computer, UMPC), net book, personal digital assistant (Personal Digital Assistant, PDA) or
The conventionally used base station etc. of person.The conventionally used base station can be (evolved node base station, eNB), may be used also
Think in 5G system network side equipment (such as next-generation base station (next generation node base station,
GNB) or send and receive point (transmission and reception point, TRP)) or the equipment such as cell cell.
Specifically, data transmission method described in the embodiment of the present invention can be applied to appointing using PTP protocol transmission time synchronizing information
In one network system, optionally, which can be mobile communication system, financial system and electric system etc..
In time synchronizing method to solve the data transmission in prior art communication network, upstream device can not be obtained precisely
The problem of taking the transmission state of intermediate network node, data transmission method described in the embodiment of the present invention, by network system
The time precision of network node is carried in the notice message transmitted and passes through the network node with the time precision
Hop count information, so that for indicating that the time precision information of the transmission state of intermediate equipment is transmitted to downstream and sets in network system
Standby, upstream device can obtain the specific time precision information, to facilitate the performance and O&M of synchronizing network.
A wherein embodiment for data transmission method described in the embodiment of the present invention, applied to the first net in network system
Network node, as shown in Figure 2, comprising:
S210 obtains the first notice message transmitted in network system, wherein including: in first notice message
The time precision for at least network node that first notice message is passed through when transmitting；
The hop count information for the network node with the time precision that first notice message is passed through when transmitting.
It should be noted that first network node can be any network node in network system, the first notice message
It can be the Announce message in PTP protocol.It is understood that as in first notice message of Announce message
Record has total hop count of the passed through network node of the first notice message, for noticing synchronisation source and synchronization in network system
The information such as hop count, so that upstream device knows network state and selects source.
Optionally, in the embodiment of the present invention, the time precision and the hop count information are recorded in first notice and report
In type-length-value (type-length-value, TLV) the extension information of text.It is of course also possible to transmit by other means
Time precision and hop count information, such as by individual message transmissions, or the reservation in Announce message can also be passed through
Field transmission.
Further, a wherein embodiment for data transmission method described in the embodiment of the present invention, the TLV of the first notice message
Extend the specific value for directly recording time precision and hop count information in information respectively.For example, working as specific time precision
Numerical value when being 5ns, then directly with " 5 " numerical value corresponding record time precision in TLV extension information, when corresponding time essence
When the specific hop count of degree is 3 jump, then directly with " 3 " numerical value corresponding record hop count information in TLV extension information.
The TLV of another embodiment of data transmission method described in the embodiment of the present invention, the first notice message extends information
In, it can be directly with records of values hop count information, and the specific value of time precision is recorded with corresponding instruction code.It needs
It is noted that different time precisions respectively corresponds different instruction codes, which can when using the recording mode
By being issued to each network node in a manner of preconfigured.For example, can indicate that time precision is with instruction code " 001 "
100 nanoseconds indicated that time precision was 30 nanoseconds etc. with instruction code " 002 ".
The TLV of another embodiment of data transmission method described in the embodiment of the present invention, the first notice message extends information
In, the specific value of transmission precision and hop count information can be recorded respectively with corresponding instruction code.It should be noted that
When using the recording mode, different transmission precisions and hop count information respectively correspond different instruction codes, which can
By being issued to each network node in a manner of preconfigured.
In addition, including multiple and different time precisions, each time precision in the first notice message in the embodiment of the present invention
Respectively correspond a hop count information.
Optionally, the multiple time precision includes the time essence for each network node that first notice message is passed through
Degree.
Using aforesaid way, notice message in network system from any network node transmissions to next network node when,
The time precision of the network node is carried in notice message, and records corresponding hop count information.
Optionally, multiple time precisions include first notice message passed through in addition to third network node
Each network node time precision.
Wherein, which can have for any network node in network system, the third network node
Default time precision.
It is understood that passed through network node can be carried when the first notice message is transmitted in network system
Total hop count can be with for the time precision of each network node, in the TLV extension information of the first notice message using the feature
The other times precision and hop count information in addition to sometime precision are only carried, for example, there are two types of time essences in network system
Degree: 30ns and 5ns then only can carry the time precision of 5ns in TLV and corresponding hop count can for the time precision of 30ns
Can not be carried in the first notice message as default time precision, the default time precision and corresponding hop count information,
Hop count corresponding to the default time precision can be obtained by the hop count that the total hop count of network that the first notice message carries subtracts 5ns
?.
In the embodiment of the present invention, third network node may refer to a network node, also may refer at least two
Network node, those network nodes all have default time precision.
Data transmission method described in the embodiment of the present invention obtains first transmitted in network system in step S210 and leads to
After knowing message, as shown in figure 3, can further include:
S310, the second network node into network system send the second notice message.
Wherein, the first performance of step S310 are as follows: when existing in the first notice message with first network node
Between precision identical time precision when, include in the second notice message each time precision in the first notice message and with it is each
The corresponding hop count information of time precision, wherein in the hop count information, it is corresponding with the time precision of the first network node
Hop count information adds 1；
In this embodiment, first network node received first notice message include itself time precision,
When sending notice message (the second notice message) to the second network node (next network node), subsidiary first notice message institute
The time precision of transmission, and after hop count information corresponding with the time precision of first network node is added 1, with other times precision
Corresponding hop count information is sent to the second network node together.
The second performance of step S310 are as follows: when there is no the time with first network node is smart in the first notice message
When spending identical time precision, notified in the second notice message including each time precision in the first notice message and with first
The corresponding hop count information of each time precision in message；It further include the time precision of first network node in second notice message
Head hop-information corresponding with the time precision of first network node.
In this embodiment, first network node received first notice message do not include itself time precision,
Then when sending notice message (the second notice message) to the second network node (next network node), subsidiary first notice report
Time precision transmitted by text and hop count information, and increase the time precision of first network node, record and the first network section
Jumping figure value headed by the hop count information of the time precision of point.Optionally, which can be 0 or be 1, or in advance
The numerical value of agreement.
The third performance of step S310 are as follows: there is no the time precisions with first network node in the first notice message
Identical time precision, the and when time precision of first network node is default time precision includes the in the second notice message
Each time precision and hop count information corresponding with each time precision in one notice message.
When using the performance, it can make an appointment or a default time precision is obtained by network configuration, in this way
When carrying out data transmission, the time precision of each network node and the notice of hop count information are carried when first network node receives
Message, and confirm that the time precision of itself is identical as the default time precision, to the second network node (next network section
Point) when sending notice message (the second notice message), only by entrained time precision and corresponding jump in the first notice message
Number information carries in the second notice message, and is sent to next network node, does not change time precision and corresponding hop count letter
The value of breath.
It is understood that in above-mentioned each performance, in received first notice message of first network node institute also
Total hop count is carried, first network node is sent to after total hop count is added 1 when sending the second notice message to the second network node
Second notice message.In above-mentioned third performance, although for default time precision and right is not carried in notice message
The hop count information answered, but according in notice message total hop count and other times precision corresponding to hop count information, can obtain
The correspondence hop count of the default time precision.
In the embodiment of the present invention, notice message is transmitted to a network node, and the time precision of acquired network node can
Think the preset time precision of the network node, is a fixed value；Or real-time testing is carried out to the network node
The current time precision of acquisition.Therefore, the time precision of above-mentioned first network node can be set in advance for first network node
Fixed time precision, or the current time precision that real-time testing obtains.In the embodiment of the present invention, optionally, in step
S310, first network node send the second notice message to the second network node, and the second notice message includes the first notice message
In each time precision, when further including the time precision of first network node, in the second notice message, the first notice message
In time precision and the time precision of first network node can be ranked up according to represented accurate values size, wherein should
Sortord can be ascending order, can also be with descending；Alternatively, in the second notice message, can also by first network node when
Between precision be recorded in after the time precision of the first notice message, namely come All Time entrained by the second notice message essence
The last one of degree.
Data transmission method described in the embodiment of the present invention, as shown in figure 4, can further include:
S410 calculates first notice according to the time precision and the hop count information in first notice message
The Link Time precision that message transmits in the network system.
Optionally, in step S410, the time precision and the hop count information according in first notice message,
Calculating the Link Time precision that first notice message is transmitted in the network system includes:
When multiple time precisions included in first notice message include that first notice message is passed through
When the time precision for each network node crossed, the Link Time precision T is calculated in the following way:
T=A1 × a1+A2 × a2+A2 × a2+ ...+An × an；
Wherein, A1, A2, A3 ..., An be respectively the time precision that is recorded in first notice message, a1, a2,
A3 ..., an be respectively with A1, A2, A3 ..., the corresponding hop count information of An.
Optionally, in step S410, the time precision and the hop count information according in first notice message,
Calculating the Link Time precision that first notice message is transmitted in the network system includes:
When multiple time precisions included in first notice message, including being passed through except third network section
The time precision of each network node except point, when the third network node has default time precision, using such as lower section
Formula calculates the Link Time precision T:
T=A1 × a1+A2 × a2+A2 × a2+ ...+An × an+B × (C-a1-a2-a3- ...-an)
Wherein, A1, A2, A3 ..., An be respectively the time precision that is recorded in first notice message, a1, a2,
A3 ..., an be respectively with A1, A2, A3 ..., the corresponding hop count information of An；B is default time precision, and C is first notice
The total hop count for the network node that message is passed through.
In the embodiment of the present invention, when in the TLV extension information that time precision and hop count information are recorded in the first notice message
When, the field length that TLV extends information is adjustable, and the field format for recording the time precision and the hop count information is distinguished
For fixation.
Based on which, the TLV extension information for carrying time precision and hop count information is flexibly expansible, to every kind of precision
The uniform format of numerical value.When the network node Jing Guo different time precision, only TLV extends the length variation of information, but TLV
It is unified for extending the basic format of information, so the program can be compatible with the appearance of future network different accuracy node.For
Network node can receive, detect or carry the notice Announce message of the TLV of different accuracy quantity.
Optionally, when time precision and hop count information are recorded in the TLV extension information of the first notice message, TLV expands
The field length for opening up information can be definite value, be respectively used to record time precision and the jump including multiple in TLV extension information
The field of number information.
Based on which, it includes more in TLV extension information that it is fixed for, which can setting the field length of TLV extension information,
A field for being respectively used to record time precision and the hop count information, part of field are believed filled with time precision and hop count
Breath, part field are not filled with time precision and hop count information, for being not filled by the field of time precision and hop count information, are remembered
Recording numerical value can be 0 or pre-set code, as shown in figure 5, extending and believing by TLV when needing filling time precision and hop count information
The field of corresponding record 0 or pre-set code fills in the numerical value for needing to record in breath.
Optionally, when the field length of TLV extension information is to fix, TLV extends in information to be respectively used to remember including multiple
The field of time precision and the hop count information is recorded, when each field is filled with corresponding time precision and hop count information, often
The corresponding time precision filled of one field can be respectively a preset time precision, wherein filled in corresponding to different fields
The preset time precision filled in corresponding to preset time precision difference or at least part of field is different.When passed through network
The time precision of node is with when wherein the preset time precision of a field is equal, then the field institute with the preset time precision is right
The hop count information record notice message answered actually passes through the hop count of the network node with the preset time precision；When a field
When the preset time precision recorded and the different time precision of passed through any network node, hop count corresponding to the field
Information is recorded as pre-set code, be such as recorded as 0 namely any network node for being passed through of notice message be not the preset time
When precision, hop count information corresponding with the preset time precision is recorded as pre-set code.Optionally, in the embodiment of the present invention,
Step S210 includes an identification marking in the first acquired notice message, and it is logical which is used to indicate described first
Know and carries the time precision and the hop count information in message.
Further, in step S310, when the second network node into network system sends the second notice message, this second
Also above-mentioned identification marking is carried in notice message, is used to indicate second transmitted by the second network node first network node
It include time precision and hop count information in notice message.
Optionally, which can be sent to each network node using preconfigured mode.
It, can will be intermediate by the Announce message of PTP protocol using data transmission method described in the embodiment of the present invention
The time precision of network node is transmitted to upstream device, and can be compatible with the equipment and network of the following different accuracy.
Another embodiment of the embodiment of the present invention also provides a kind of network node, wherein the network node is first network
Node, as shown in fig. 6, including processor 610 and transceiver 620, wherein the processor 610 is used for:
The first notice message transmitted in network system is obtained, wherein including: in first notice message
The time precision for at least network node that first notice message is passed through when transmitting；
The hop count information for the network node with the time precision that first notice message is passed through when transmitting.
Optionally, the network node, wherein it include multiple and different time precisions in first notice message,
Each time precision respectively corresponds a hop count information.
Optionally, the network node, wherein multiple time precisions include that first notice message is passed through
Each network node time precision.
Optionally, the network node, wherein multiple time precisions include that first notice message is passed through
Each network node in addition to third network node time precision.
Optionally, the network node, wherein the third network node has default time precision.
Optionally, the network node, wherein after obtaining the first notice message transmitted in network system,
The processor 610 is also used to:
The second network node into network system sends the second notice message；
Wherein, there is time precision identical with the time precision of the first network node in first notice message
When, it include each time precision in first notice message in second notice message and corresponding with each time precision
Hop count information, wherein hop count information corresponding with the time precision degree of first network node adds 1 in the hop count information.
Optionally, after obtaining the first notice message transmitted in network system, the processor 610 is also used to:
The second network node into network system sends the second notice message；
Wherein, there is no time essences identical with the time precision of the first network node in first notice message
When spending, reported in second notice message including each time precision in first notice message and with first notice
The corresponding hop count information of each time precision in text；It further include the time essence of first network node in second notice message
Degree and first hop-information corresponding with the time precision of first network node.
Optionally, after obtaining the first notice message transmitted in network system, the processor 610 is also used to:
The second network node into network system sends the second notice message；
Wherein, there is no time essences identical with the time precision of the first network node in first notice message
Degree, and when the time precision of first network node is default time precision, it include described first logical in second notice message
Know each time precision and hop count information corresponding with each time precision in message.
Optionally, the time precision and the first net in first notice message included in second notice message
The time precision of network node is ranked up according to represented accurate values size；
Alternatively, the time precision of first network node is recorded in first notice message in second notice message
In time precision after.
Optionally, the processor 610 is also used to:
According to the time precision and the hop count information in first notice message, calculates first notice message and exist
The Link Time precision transmitted in the network system.
Optionally, the processor 610 is according to the time precision and the hop count information in first notice message, meter
The Link Time precision that first notice message is transmitted in the network system is calculated to be specifically used for:
When multiple time precisions included in first notice message include that first notice message is passed through
When the time precision for each network node crossed, the Link Time precision T is calculated in the following way:
T=A1 × a1+A2 × a2+A2 × a2+ ...+An × an；
Wherein, A1, A2, A3 ..., An be respectively the time precision that is recorded in first notice message, a1, a2,
A3 ..., an be respectively with A1, A2, A3 ..., the corresponding hop count information of An.
Optionally, the processor 610 is according to the time precision and the hop count information in first notice message, meter
The Link Time precision that first notice message is transmitted in the network system is calculated to be specifically used for:
When multiple time precisions included in first notice message, including being passed through except third network section
The time precision of each network node except point, when the third network node has default time precision, using such as lower section
Formula calculates the Link Time precision T:
T=A1 × a1+A2 × a2+A2 × a2+ ...+An × an+B × (C-a1-a2-a3- ...-an)
Wherein, A1, A2, A3 ..., An be respectively the time precision that is recorded in first notice message, a1, a2,
A3 ..., an be respectively with A1, A2, A3 ..., the corresponding hop count information of An；B is default time precision, and C is first notice
The total hop count for the network node that message is passed through.Optionally, the time precision and the hop count information are recorded in described first
In the type-length-value TLV extension information of notice message.
Optionally, the field length of the TLV extension information is adjustable, for recording the time precision and hop count letter
The field format of breath is respectively to fix.
Optionally, the field length of the TLV extension information is definite value, includes multiple difference in the TLV extension information
For recording the field of the time precision and the hop count information.
Optionally, the specific of the time precision and the hop count information is directly recorded respectively in TLV extension information
Numerical value.
Optionally, in TLV extension information, the specific value of the time precision is carried out with corresponding instruction code
Record.
It optionally, include an identification marking in first notice message, the identification marking is used to indicate described first
The time precision and the hop count information are carried in notice message.
Network node described in the embodiment of the present invention, by carrying network section in the notice message transmitted in network system
The time precision of point and the hop count information for passing through the network node with the time precision, so that being used for table in network system
Showing that the precision information of the transmission shape of intermediate equipment is transmitted to upstream device, upstream device can obtain the specific precision information, with
Facilitate the performance and O&M of synchronizing network.
The embodiment of the present invention also provides the network node of another embodiment, as shown in fig. 7, the network node is the first net
Network node, including memory 710, processor 720 and be stored on the memory 710 and can be transported on the processor 720
Capable computer program.As shown in fig. 7, the network side equipment further includes transceiver 730 and bus interface 740.
Wherein, processor 720 is used to read the program in memory 710；
Transceiver 730, for sending and receiving data under the control of a processor.
In addition, bus interface 740 may include the bus and bridge of any number of interconnection, specifically represented by processor 720
One or more processors and the various circuits of memory that represent of memory link together.Bus architecture can also will be all
If various other circuits of peripheral equipment, voltage-stablizer and management circuit or the like link together, these are all this fields
Known, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 730 can be multiple
Element includes transmitter and transceiver, provides the unit for communicating over a transmission medium with various other devices.Processor
720 are responsible for management bus architecture and common processing, and memory 710 can store processor used number when executing operation
According to.
Specifically, in the embodiment of the present invention, which is used for:
The first notice message transmitted in network system is obtained, wherein including: in first notice message
The time precision for at least network node that first notice message is passed through when transmitting；
The hop count information for the network node with the time precision that first notice message is passed through when transmitting.
Optionally, the network node, wherein it include multiple and different time precisions in first notice message,
Each time precision respectively corresponds a hop count information.
Optionally, the network node, wherein multiple time precisions include that first notice message is passed through
Each network node time precision.
Optionally, the network node, wherein multiple time precisions include that first notice message is passed through
Each network node in addition to third network node time precision.
Optionally, the network node, wherein the third network node has default time precision.
Optionally, the network node, wherein after obtaining the first notice message transmitted in network system,
The processor 720 is also used to:
The second network node into network system sends the second notice message；
Wherein, there is time precision identical with the time precision of the first network node in first notice message
When, it include each time precision in first notice message in second notice message and corresponding with each time precision
Hop count information, wherein hop count information corresponding with the time precision of first network node adds 1 in the hop count information.
Optionally, after obtaining the first notice message transmitted in network system, the processor 720 is also used to:
The second network node into network system sends the second notice message；
Wherein, there is no time essences identical with the time precision of the first network node in first notice message
When spending, reported in second notice message including each time precision in first notice message and with first notice
The corresponding hop count information of each time precision in text；It further include the time essence of first network node in second notice message
Degree and first hop-information corresponding with the time precision of first network node.
Optionally, after obtaining the first notice message transmitted in network system, the processor 720 is also used to:
The second network node into network system sends the second notice message；
Wherein, time precision identical with the time precision of first network node is not present in first notice message,
And the time precision of first network node is when being default time precision, includes the first notice report in second notice message
Each time precision and hop count information corresponding with each time precision in text.
Optionally, the time precision and the first net in first notice message included in second notice message
The time precision of network node is ranked up according to represented accurate values size；
Alternatively, the time precision of first network node is recorded in the first notice message in second notice message
After time precision.
Optionally, the processor 720 is also used to:
According to the time precision and the hop count information in first notice message, calculates first notice message and exist
The Link Time precision transmitted in the network system.
Optionally, the processor 720 is according to the time precision and the hop count information in first notice message, meter
The Link Time precision that first notice message is transmitted in the network system is calculated to be specifically used for:
When multiple time precisions included in first notice message include that first notice message is passed through
When the time precision for each network node crossed, the Link Time precision T is calculated in the following way:
T=A1 × a1+A2 × a2+A2 × a2+ ...+An × an；
Wherein, A1, A2, A3 ..., An be respectively the time precision that is recorded in first notice message, a1, a2,
A3 ..., an be respectively with A1, A2, A3 ..., the corresponding hop count information of An.
Optionally, the processor 720 is according to the time precision and the hop count information in first notice message, meter
The Link Time precision that first notice message is transmitted in the network system is calculated to be specifically used for:
When multiple time precisions included in first notice message, including being passed through except third network section
The time precision of each network node except point, when the third network node has default time precision, using such as lower section
Formula calculates the Link Time precision T:
T=A1 × a1+A2 × a2+A2 × a2+ ...+An × an+B × (C-a1-a2-a3- ...-an)
Wherein, A1, A2, A3 ..., An be respectively the time precision that is recorded in first notice message, a1, a2,
A3 ..., an be respectively with A1, A2, A3 ..., the corresponding hop count information of An；B is default time precision, and C is first notice
The total hop count for the network node that message is passed through.Optionally, the time precision and the hop count information are recorded in described first
In the type-length-value TLV extension information of notice message.
Optionally, the field length of the TLV extension information is adjustable, for recording the time precision and hop count letter
The field format of breath is respectively to fix.
Optionally, the field length of the TLV extension information is definite value, includes multiple difference in the TLV extension information
For recording the field of the time precision and the hop count information.
Optionally, the specific of the time precision and the hop count information is directly recorded respectively in TLV extension information
Numerical value.
Optionally, in TLV extension information, the specific value of the time precision is carried out with corresponding instruction code
Record.
It optionally, include an identification marking in first notice message, the identification marking is used to indicate described first
The time precision and the hop count information are carried in notice message.
It should be noted that network node can be network side equipment in the embodiment of the present invention, or user side is set
Standby, when the network node is user side equipment, which further includes user interface, is connect with bus interface.
In addition, the specific embodiment of the invention also provides a kind of computer readable storage medium, it is stored thereon with computer journey
Sequence, wherein when the program is executed by processor realize as above any one of described in data transmission method in step.
Specifically, which is applied to above-mentioned network node, right when being applied to network node
The detailed description for answering the execution step in data transmission method as above, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed method and apparatus, it can be by other
Mode realize.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
For a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine
Or it is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed phase
Coupling, direct-coupling or communication connection between mutually can be through some interfaces, the INDIRECT COUPLING or communication of device or unit
Connection can be electrical property, mechanical or other forms.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that the independent physics of each unit includes, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit being realized in the form of SFU software functional unit can store and computer-readable deposit at one
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are with so that a computer is set
Standby (can be personal computer, server or the network equipment etc.) executes receiving/transmission method described in each embodiment of the present invention
Part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, abbreviation
ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc. are various can store
The medium of program code.
Above-described is the preferred embodiment of the present invention, it should be pointed out that the ordinary person of the art is come
It says, under the premise of not departing from principle of the present invention, can also make several improvements and retouch, these improvements and modifications should also regard
For protection scope of the present invention.
Claims (38)
1. a kind of data transmission method, applied to the first network node in network system, which is characterized in that the method packet
It includes:
The first notice message transmitted in network system is obtained, wherein including: in first notice message
The time precision for at least network node that first notice message is passed through when transmitting；
The hop count information for the network node with the time precision that first notice message is passed through when transmitting.
2. data transmission method according to claim 1, which is characterized in that in first notice message include it is multiple not
Same time precision, each time precision respectively correspond a hop count information.
3. data transmission method according to claim 2, which is characterized in that multiple time precisions include described first
The time precision for each network node that notice message is passed through.
4. data transmission method according to claim 2, which is characterized in that multiple time precisions include described first
The time precision for each network node in addition to third network node that notice message is passed through.
5. data transmission method according to claim 4, the third network node has default time precision.
6. data transmission method according to claim 1, which is characterized in that described to obtain the transmitted in network system
After the step of one notice message, the method also includes:
The second network node into network system sends the second notice message；
Wherein, when there is time precision identical with the time precision of the first network node in first notice message,
It include each time precision and corresponding with each time precision in first notice message in second notice message
Hop count information, wherein hop count information corresponding with the time precision of the first network node adds 1 in the hop count information.
7. data transmission method according to claim 1, which is characterized in that described to obtain the transmitted in network system
After the step of one notice message, the method also includes:
The second network node into network system sends the second notice message；
Wherein, time precision identical with the time precision of the first network node is not present in first notice message
When, include in second notice message each time precision in first notice message and with first notice message
In the corresponding hop count information of each time precision；It further include the time of the first network node in second notice message
Precision and first hop-information corresponding with the time precision of the first network node.
8. data transmission method according to claim 1, which is characterized in that described to obtain the transmitted in network system
After the step of one notice message, the method also includes:
The second network node into network system sends the second notice message；
Wherein, time precision identical with the time precision of the first network node is not present in first notice message,
And the time precision of the first network node is when being default time precision, includes described first logical in second notice message
Know each time precision and hop count information corresponding with each time precision in message.
9. data transmission method according to claim 7, which is characterized in that included institute in second notice message
The time precision for stating the time precision and the first network node in the first notice message, according to represented accurate values size
It is ranked up；
Alternatively, the time precision of the first network node is recorded in first notice message in second notice message
In time precision after.
10. data transmission method according to claim 1, which is characterized in that the method also includes:
According to the time precision and the hop count information in first notice message, first notice message is calculated described
The Link Time precision transmitted in network system.
11. data transmission method according to claim 10, which is characterized in that described according in first notice message
Time precision and the hop count information, calculate the Link Time essence that first notice message is transmitted in the network system
Degree includes:
When multiple time precisions included in first notice message include that first notice message is passed through
When the time precision of each network node, the Link Time precision T is calculated in the following way:
T=A1 × a1+A2 × a2+A2 × a2+ ...+An × an；
Wherein, A1, A2, A3 ..., An be respectively the time precision that is recorded in first notice message, a1, a2, a3 ...,
An be respectively with A1, A2, A3 ..., the corresponding hop count information of An.
12. data transmission method according to claim 10, which is characterized in that described according in first notice message
Time precision and the hop count information, calculate the Link Time essence that first notice message is transmitted in the network system
Degree includes:
When multiple time precisions included in first notice message, including passed through except third network node it
The time precision of outer each network node is counted in the following way when the third network node has default time precision
Calculate the Link Time precision T:
T=A1 × a1+A2 × a2+A2 × a2+ ...+An × an+B × (C-a1-a2-a3- ...-an)
Wherein, A1, A2, A3 ..., An be respectively the time precision that is recorded in first notice message, a1, a2, a3 ...,
An be respectively with A1, A2, A3 ..., the corresponding hop count information of An；B is default time precision, and C is the first notice message institute
Total hop count of the network node of process.
13. data transmission method according to claim 1, which is characterized in that the time precision and the hop count information
It is recorded in the type-length-value TLV extension information of first notice message.
14. data transmission method according to claim 13, which is characterized in that the field length of the TLV extension information
Adjustable, the field format for recording the time precision and the hop count information is respectively to fix.
15. data transmission method according to claim 13, which is characterized in that the field length of the TLV extension information
For definite value, it includes multiple fields for being respectively used to record the time precision and the hop count information in information that the TLV, which extends,.
16. data transmission method according to claim 13, which is characterized in that directly distinguish in TLV extension information
Record the specific value of the time precision and the hop count information.
17. data transmission method according to claim 13, which is characterized in that in TLV extension information, when described
Between the specific value of precision recorded with corresponding instruction code.
18. data transmission method according to claim 1, which is characterized in that include a knowledge in first notice message
It does not identify, the identification marking is used to indicate in first notice message and carries the time precision and the hop count information.
19. a kind of network node, wherein the network node is first network node, which is characterized in that including processor and receipts
Send out device, wherein the processor is used for:
The first notice message transmitted in network system is obtained, wherein including: in first notice message
The time precision for at least network node that first notice message is passed through when transmitting；
The hop count information for the network node with the time precision that first notice message is passed through when transmitting.
20. network node according to claim 19, which is characterized in that include multiple and different in first notice message
Time precision, each time precision respectively corresponds a hop count information.
21. network node according to claim 20, which is characterized in that multiple time precisions include described first logical
Know the time precision for each network node that message is passed through.
22. network node according to claim 20, which is characterized in that multiple time precisions include described first logical
Know the time precision for each network node in addition to third network node that message is passed through.
23. network node according to claim 22, which is characterized in that the third network node has default time essence
Degree.
24. network node according to claim 19, which is characterized in that obtain the first notice transmitted in network system
After message, the processor is also used to:
The second network node into network system sends the second notice message；
Wherein, when there is time precision identical with the time precision of the first network node in first notice message,
It include each time precision and corresponding with each time precision in first notice message in second notice message
Hop count information, wherein hop count information corresponding with the time precision of the first network node adds 1 in the hop count information.
25. network node according to claim 19, which is characterized in that obtain the first notice transmitted in network system
After message, the processor is also used to:
The second network node into network system sends the second notice message；
Wherein, time precision identical with the time precision of the first network node is not present in first notice message
When, include in second notice message each time precision in first notice message and with first notice message
In the corresponding hop count information of each time precision；It further include the time of the first network node in second notice message
Precision and first hop-information corresponding with the time precision of the first network node.
26. network node according to claim 19, which is characterized in that obtain the first notice transmitted in network system
After message, the processor is also used to:
The second network node into network system sends the second notice message；
Wherein, time precision identical with the time precision of the first network node is not present in first notice message,
And the time precision of the first network node is when being default time precision, includes described first logical in second notice message
Know each time precision and hop count information corresponding with each time precision in message.
27. network node according to claim 25, which is characterized in that described included by second notice message
The time precision of time precision and the first network node in first notice message, according to represented accurate values size into
Row sequence；
Alternatively, the time precision of the first network node is recorded in first notice message in second notice message
In time precision after.
28. network node according to claim 19, which is characterized in that the processor is also used to:
According to the time precision and the hop count information in first notice message, first notice message is calculated described
The Link Time precision transmitted in network system.
29. network node according to claim 28, which is characterized in that the processor is according to first notice message
In time precision and the hop count information, calculate the Link Time that first notice message is transmitted in the network system
Precision is specifically used for:
When multiple time precisions included in first notice message include that first notice message is passed through
When the time precision of each network node, the Link Time precision T is calculated in the following way:
T=A1 × a1+A2 × a2+A2 × a2+ ...+An × an；
Wherein, A1, A2, A3 ..., An be respectively the time precision that is recorded in first notice message, a1, a2, a3 ...,
An be respectively with A1, A2, A3 ..., the corresponding hop count information of An.
30. network node according to claim 28, which is characterized in that the processor is according to first notice message
In time precision and the hop count information, calculate the Link Time that first notice message is transmitted in the network system
Precision is specifically used for:
When multiple time precisions included in first notice message, including passed through except third network node it
The time precision of outer each network node is counted in the following way when the third network node has default time precision
Calculate the Link Time precision T:
T=A1 × a1+A2 × a2+A2 × a2+ ...+An × an+B × (C-a1-a2-a3- ...-an)
Wherein, A1, A2, A3 ..., An be respectively the time precision that is recorded in first notice message, a1, a2, a3 ...,
An be respectively with A1, A2, A3 ..., the corresponding hop count information of An；B is default time precision, and C is the first notice message institute
Total hop count of the network node of process.
31. network node according to claim 19, which is characterized in that the time precision and the hop count information record
In the type-length-value TLV extension information of first notice message.
32. network node according to claim 31, which is characterized in that the field length of the TLV extension information is adjustable,
Field format for recording the time precision and the hop count information is respectively to fix.
33. network node according to claim 31, which is characterized in that the field length of the TLV extension information is fixed
Value, it includes multiple fields for being respectively used to record the time precision and the hop count information in information that the TLV, which extends,.
34. network node according to claim 31, which is characterized in that directly recorded respectively in TLV extension information
The specific value of the time precision and the hop count information.
35. network node according to claim 31, which is characterized in that in TLV extension information, the time essence
The specific value of degree is recorded with corresponding instruction code.
36. network node according to claim 19, which is characterized in that include an identification mark in first notice message
Know, the identification marking is used to indicate in first notice message and carries the time precision and the hop count information.
37. a kind of network node, including memory, processor and it is stored on the memory and can transports on the processor
Capable program；It is characterized in that, the processor realizes such as the described in any item numbers of claim 1 to 18 when executing described program
According to transmission method.
38. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that described program is processed
It realizes when device executes such as the step in the described in any item data transmission methods of claim 1 to 18.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811195635.6A CN109347589B (en) | 2018-10-15 | 2018-10-15 | Data transmission method and network node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811195635.6A CN109347589B (en) | 2018-10-15 | 2018-10-15 | Data transmission method and network node |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109347589A true CN109347589A (en) | 2019-02-15 |
| CN109347589B CN109347589B (en) | 2021-11-09 |
Family
ID=65310117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811195635.6A Active CN109347589B (en) | 2018-10-15 | 2018-10-15 | Data transmission method and network node |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109347589B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114980296A (en) * | 2021-02-25 | 2022-08-30 | 中国移动通信有限公司研究院 | Method, device and equipment for sending and receiving time information |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051439A (en) * | 2011-10-14 | 2013-04-17 | 中兴通讯股份有限公司 | Method and device for selecting clock source |
| CN103259640A (en) * | 2013-05-28 | 2013-08-21 | 杭州华三通信技术有限公司 | Method and device for synchronizing time |
| CN104426645A (en) * | 2013-09-02 | 2015-03-18 | 华为技术有限公司 | Method for determining Ethernet clock source and device for determining Ethernet clock source |
| CN105024798A (en) * | 2014-04-28 | 2015-11-04 | 中兴通讯股份有限公司 | Method and device for time synchronization |
| US20150318941A1 (en) * | 2014-05-05 | 2015-11-05 | Telefonaktiebolaget L M Ericsson (Publ) | Method for robust ptp synchronization with default 1588v2 profile |
| CN106899371A (en) * | 2015-12-18 | 2017-06-27 | 中兴通讯股份有限公司 | Method for synchronizing time and device |
-
2018
- 2018-10-15 CN CN201811195635.6A patent/CN109347589B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051439A (en) * | 2011-10-14 | 2013-04-17 | 中兴通讯股份有限公司 | Method and device for selecting clock source |
| CN103259640A (en) * | 2013-05-28 | 2013-08-21 | 杭州华三通信技术有限公司 | Method and device for synchronizing time |
| CN104426645A (en) * | 2013-09-02 | 2015-03-18 | 华为技术有限公司 | Method for determining Ethernet clock source and device for determining Ethernet clock source |
| CN105024798A (en) * | 2014-04-28 | 2015-11-04 | 中兴通讯股份有限公司 | Method and device for time synchronization |
| US20150318941A1 (en) * | 2014-05-05 | 2015-11-05 | Telefonaktiebolaget L M Ericsson (Publ) | Method for robust ptp synchronization with default 1588v2 profile |
| CN106899371A (en) * | 2015-12-18 | 2017-06-27 | 中兴通讯股份有限公司 | Method for synchronizing time and device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114980296A (en) * | 2021-02-25 | 2022-08-30 | 中国移动通信有限公司研究院 | Method, device and equipment for sending and receiving time information |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109347589B (en) | 2021-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104380780B (en) | Transmission method and communication equipment | |
| CN105915308B (en) | A kind of method for synchronizing time, apparatus and system | |
| EP1953937A1 (en) | Clock synchronization aid device for communication station(s) of a wireless network, and associated clock synchronization device | |
| CN109600186A (en) | Clock synchronizing method and device | |
| CN1706135B (en) | A method of determining a timing offset between a first clock and a second clock in a communications network | |
| CN104113517A (en) | Timestamp generation method, device and system | |
| CN102892183A (en) | Wireless communication system for determining mobile devices positions and related method | |
| JP5811895B2 (en) | Communication apparatus and communication method | |
| CN107371243A (en) | A kind of resource determining method, relevant device and system | |
| CN113067740B (en) | Method, device, equipment and computer readable storage medium for detecting following path performance | |
| EP3955528A1 (en) | Delay measurement method, system and storage medium | |
| CN101808167A (en) | Method for procedure tracking, device and system | |
| CN108243396B (en) | Time synchronization processing method and device | |
| CN101951300A (en) | Method for realizing accurate time tick of Ethernet | |
| CN108259105B (en) | time synchronization processing method and device and synchronization network | |
| CN109347589A (en) | A kind of data transmission method and network node | |
| CN107615806A (en) | Improved arrival time alignment system | |
| CN107483136A (en) | A kind of clock synchronizing method between fixed communication apparatus | |
| CN109600852A (en) | A kind of resource indicating method, communication device and the network equipment | |
| CN111953441B (en) | Synchronization method and device | |
| US11402491B2 (en) | Method for determining a distance between two nodes | |
| CN103986601A (en) | Message transmission delay obtaining method and device | |
| CN103220715A (en) | Method and device for reporting network performance testing result | |
| CN111628914B (en) | Periodic communication network link delay measurement method and system and FPGA | |
| CN103813382A (en) | Clock synchronization method, device and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |