CN114980296A - Method, device and equipment for sending and receiving time information - Google Patents
Method, device and equipment for sending and receiving time information Download PDFInfo
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Abstract
The invention provides a method, a device and equipment for sending and receiving time information, wherein the sending method comprises the following steps: and sending the time synchronization message carrying the accumulated time precision field to a receiving node. The scheme of the invention can better meet the requirement of a time synchronization network by carrying the accumulated time precision through the time synchronization message.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a device for transmitting and receiving time information.
Background
With the development of 5G services and the improvement of the requirements of some special industries, the requirement of the network on the time synchronization precision is higher and higher. For a time synchronization network, a synchronization source server is generally installed upstream of the network, outputs a time signal, and then transfers the time signal to each node (e.g., a base station) requiring synchronization via a transmission network.
In the prior art, time signals are generally carried by time synchronization messages, some time synchronization messages carry timestamp information for time calculation and synchronization, and some time synchronization messages carry information such as time levels, hop counts and the like, so that a downstream can know the working state of an upstream time server and reach a node only after how many hops, and the downstream can also select a more optimal synchronization source.
Disclosure of Invention
The technical problem to be solved by the invention is how to provide a method, a device and equipment for sending and receiving time information. The time precision of the path can be carried by the message, and the requirement of a time synchronization network can be better met.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the invention provides a method for sending time information, which is applied to a sending node and comprises the following steps:
and sending the time synchronization message carrying the accumulated time precision field to a receiving node.
Optionally, the time synchronization packet includes a field indicating a fixed time error and/or a dynamic time error.
Optionally, the time synchronization packet further carries: whether fixed time error and/or dynamic time error identification information is carried.
Optionally, the time synchronization packet uses an Announce packet type-length-value TLV to carry a field indicating accumulated time precision.
Optionally, the time synchronization packet further carries time precision information of a time server.
The invention also provides a receiving method of the time information, which is applied to a receiving node and comprises the following steps: receiving a time synchronization packet carrying a field of accumulated time precision.
Optionally, the time synchronization packet includes a field indicating a fixed time error and/or a dynamic time error.
Optionally, the method for receiving time information further includes:
the time error is derived from a field representing a fixed time error and/or a dynamic time error.
Optionally, obtaining the time error according to the fields representing the fixed time error and the dynamic time error includes:
by the formula: time of dayError ═ value of fixed time error field + (value of dynamic time error field) 1/2 And obtaining a time error.
Optionally, the time synchronization packet further carries time precision information of a time server.
Optionally, the method for receiving time information further includes:
and obtaining the end-to-end time error between the sending node and the receiving node according to the fixed time error, the dynamic time error and the time precision of the time server.
Optionally, by the formula: time precision of the time server + fixed time error + (dynamic time error) end-to-end time error 1/2 And obtaining the end-to-end time error.
Optionally, the method for receiving time information further includes:
and updating an output message, wherein the output message carries the updated time precision numerical value.
Optionally, the time synchronization packet further carries: whether fixed time error and/or dynamic time error identification information is carried.
Optionally, updating an output packet, where the output packet carries the updated time precision value, and the updating includes:
and updating an output message according to the identification information, wherein the output message carries the updated time precision numerical value.
Optionally, the updated time precision value is: the time accuracy in the received time synchronization message plus the time accuracy of the receiving node.
Optionally, the step of adding the time precision in the received time synchronization message to the time precision of the receiving node includes:
the value of a fixed time error field in the received time synchronization message + the fixed time error of the receiving node;
and/or the value of the dynamic time error field in the received time synchronization message + the square value of the dynamic time error of the receiving node.
The invention provides a time information sending device, which is applied to a sending node and comprises the following components:
and the transceiver module is used for sending the time synchronization message carrying the accumulated time precision field to the receiving node.
The present invention provides a transmitting node comprising:
and the transceiver is used for sending the time synchronization message carrying the accumulated time precision field to the receiving node.
The invention also provides a receiving device of time information, which is applied to a receiving node and comprises the following components:
and the receiving and sending module is used for receiving the time synchronization message carrying the field with the accumulated time precision.
The present invention also provides a receiving node, comprising:
a transceiver for receiving a time synchronization packet carrying a field of accumulated time accuracy.
The present invention provides a communication device comprising: a processor, a memory storing a computer program which, when executed by the processor, performs the method as described above.
The present invention also provides a computer-readable storage medium storing instructions which, when executed on a computer, cause the computer to perform the method as described above.
The scheme of the invention at least comprises the following beneficial effects:
according to the scheme of the invention, the time synchronization message carrying the field with the accumulated time precision is sent to the receiving node, so that the downstream node directly obtains the end-to-end time precision, and the requirement of a time synchronization network is better met.
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Fig. 1 is a flowchart illustrating a method for transmitting time information according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a fixed time error and a dynamic time error in an embodiment of the present invention;
fig. 3 is a flowchart illustrating a method for receiving time information according to an embodiment of the present invention;
fig. 4 is a block diagram of a time information transmitting apparatus according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1, an embodiment of the present invention provides a method for sending time information, which is applied to a sending node, and includes:
and 11, sending the time synchronization message carrying the accumulated time precision field to a receiving node. The time synchronization message includes fields representing fixed time errors and/or dynamic time errors.
In this embodiment, the accumulated time precision is the time precision accumulated on the time path, and when the time path includes a plurality of nodes, the accumulated time precision is the accumulated time precision when the time precisions of the plurality of nodes are accumulated together; in this embodiment, the Time synchronization packet carries the accumulated Time precision of the transmission path, and the information for distinguishing the fixed Time Error (cTE) value from the Dynamic Time Error (dTE) value is accumulated, so that the receiving node can directly obtain the end-to-end Time precision, thereby better meeting the requirement of the Time synchronization network.
As shown in fig. 2, in the present embodiment, since the time accuracy has a characteristic of changing with time, the fixed time error and the dynamic time error respectively represent the fixed baseline deviation and the dynamic change portion, the vertical axis in fig. 2 represents the time error, the horizontal axis represents time, the time error b represents the fixed baseline deviation, and the portion between a and b represents the dynamic change portion.
In an optional embodiment of the present invention, the time synchronization packet further carries: whether fixed time error and/or dynamic time error identification information is carried.
In this embodiment, after the receiving node reads the identifier, the time precision may be updated based on the time precision in the time synchronization message and the time precision of the node.
In an optional embodiment of the present invention, the time synchronization packet uses an Announce packet type-length-value TLV to carry a field indicating accumulated time precision.
In this embodiment, the Announce packet is a packet for describing a time source capability; the TLV (Type Length Value) is an TLV triple, the T field indicates a packet Type, the L field indicates a packet Length, and the V field is used to store the content of the packet, where the Length of the T, L field is generally fixed, and preferably 1 to 4bytes, and the Length of the V field is variable.
In an optional embodiment of the present invention, the time synchronization packet further carries time precision information of a time server.
In this embodiment, the time synchronization packet may further carry time precision information of the time server, and under the condition of carrying the time precision information of the time server, the time error between the sending node and the receiving node may be further calculated, where the calculation formula is as follows:
time error time accuracy of time server + fixed time error value + (dynamic time error value) 1/2 。
According to the embodiment of the invention, the time precision of a transmission path (a path between a sending node and a receiving node) can be carried by the time synchronization message, and the information of the fixed time error (cTE) and the dynamic time error (dTE) value is distinguished and accumulated respectively, so that the downstream node can directly obtain the end-to-end time precision, and the requirement of a time synchronization network is better met.
As shown in fig. 3, the present invention further provides a method for receiving time information, which is applied to a receiving node, and the method includes:
In an optional embodiment of the present invention, the time synchronization packet includes a field indicating a fixed time error and/or a dynamic time error.
In this embodiment, the receiving node receives a time synchronization packet carrying a field of accumulated time precision, which is sent by the sending node, where the time synchronization packet includes a field indicating a fixed time error and/or a dynamic time error, as shown in fig. 2, because the time synchronization precision has a characteristic of changing with time, the fixed time error and the dynamic time error respectively indicate a fixed baseline deviation and a dynamic change part.
In an optional embodiment of the present invention, the method for receiving time information may further include:
the time error is derived from a field representing a fixed time error and/or a dynamic time error.
In this embodiment, the receiving node receives a time synchronization packet carrying a field with time precision, and obtains a time error according to the field representing a fixed time error and a dynamic time error, and the calculation formula is as follows:
time error ═ value of fixed time error field + (value of dynamic time error field) 1/2 And obtaining a time error.
In an optional embodiment of the present invention, the time synchronization packet further carries time precision information of a time server.
In this embodiment, the time synchronization packet may further carry time precision information of the time server, and the receiving node may further calculate a time error between the sending node and the receiving node when the time synchronization packet carries the time precision information of the time server.
In an optional embodiment of the present invention, the method for receiving time information may further include:
and obtaining the end-to-end time error between the sending node and the receiving node according to the fixed time error, the dynamic time error and the time precision of the time server.
In this embodiment, under the condition that the time synchronization packet carries the time precision information of the time server, the receiving node may determine the time precision, the fixed time error value, and the dynamic time error value of the time serverAnd calculating an end-to-end time error value through a formula, wherein the end-to-end means from a sending node to a receiving node, and the formula is as follows: time precision of the time server + fixed time error value + (dynamic time error value) end-to-end time error 1/2 。
In an optional embodiment of the present invention, the method for receiving time information further includes:
and updating an output message, wherein the output message carries the updated time precision numerical value. The time synchronization packet also carries: whether fixed time error and/or dynamic time error identification information is carried.
In an optional embodiment of the present invention, updating an output packet, where the output packet carries an updated time precision value, may include:
and updating an output message according to the identification information, wherein the output message carries the updated time precision numerical value.
In the embodiment of the invention, the time synchronization message received by the receiving node contains identification information indicating whether a fixed time error and/or a dynamic time error value is carried, after the receiving node reads the identification, if the identification is carried, the output message is updated according to the identification information, and the updated output message carries an updated time precision numerical value.
In an optional embodiment of the present invention, the updated time precision value is: the time accuracy in the received time synchronization message plus the time accuracy of the receiving node.
In this embodiment, when the receiving node starts to update the output packet, the updated time precision value is the sum of the time precision value in the time synchronization packet received by the receiving node and the time precision value at the receiving node. Because the fixed time error is in a linear accumulation relation on a propagation path, and the dynamic time deviation is in a square root accumulation relation of random noise accumulation, the numerical value updating method specifically comprises the following steps:
the updated fixed time error is: the value of a fixed time error field in the received time synchronization message + the fixed time error of the receiving node; and/or
The updated dynamic time error is: the value of the dynamic time error field in the received time synchronization message + the square value of the dynamic time error of the receiving node.
In a specific embodiment 1, if the fixed time error received by the receiving node is 100 ns and the fixed time error of the receiving node is 20 ns, the value of the fixed time error field in the received time synchronization message plus the fixed time error of the receiving node may be used to obtain that the fixed time error field output after the receiving node is updated carries 100 ns +20 ns, which is 120 ns.
The updated dynamic time error is the sum of the squared values of the dynamic time error components, in a specific embodiment 2: if the dynamic time error is 5 ns, the dynamic time error carried in the time synchronization message is (5 ns) 2 Not yet 25 (nanosecond) 2 . If the dynamic time error in the received time synchronization message is 25 (nanoseconds) 2 If the dynamic time error of the receiving node is 1 nanosecond, the device carries 25 nanoseconds in the output dynamic time error field 2 +1 (nanosecond) 2 Not 2 (nanosecond) 2 。
The scheme of the invention realizes that the time precision from end to end (from the sending node to the receiving node) can be directly obtained by a mode of carrying the time precision in the time synchronization message, and better meets the requirement of a time synchronization network. It should be noted that, in the foregoing embodiment of the present invention, the sending node and the receiving node refer to a sending node and a receiving node of a time synchronization packet, and the sending node and the receiving node may be located in the same device or in different devices.
As shown in fig. 4, an embodiment of the present invention further provides a sending apparatus 40 for time information, which is applied to a sending node, and includes:
the transceiver module 41 is configured to send a time synchronization packet carrying a field with accumulated time precision to the receiving node.
Optionally, the time synchronization packet includes a field indicating a fixed time error and/or a dynamic time error.
Optionally, the time synchronization packet further carries: whether fixed time error and/or dynamic time error identification information is carried.
Optionally, the time synchronization packet uses an Announce packet type-length-value TLV to carry a field indicating accumulated time precision.
Optionally, the time synchronization packet further carries time precision information of a time server.
It should be noted that the apparatus is an apparatus corresponding to the method shown in fig. 1, and all the implementations in the above method embodiment are applicable to the embodiment of the apparatus, and the same technical effects can be achieved.
An embodiment of the present invention further provides a sending node, including:
and the transceiver is used for sending the time synchronization message carrying the field with the accumulated time precision to the receiving node.
Optionally, the time synchronization packet includes a field indicating a fixed time error and/or a dynamic time error.
Optionally, the time synchronization packet further carries: whether fixed time error and/or dynamic time error identification information is carried.
Optionally, the time synchronization packet uses an Announce packet type-length-value TLV to carry a field indicating accumulated time precision.
Optionally, the time synchronization packet further carries time precision information of a time server.
It should be noted that the sending node is a sending node corresponding to the method shown in fig. 1, and all implementation manners in the method embodiment are applicable to the embodiment of the sending node, and the same technical effect can be achieved.
An embodiment of the present invention further provides a receiving apparatus for time information, which is applied to a receiving node, and includes:
and the receiving and sending module is used for receiving the time synchronization message carrying the field with the accumulated time precision.
Optionally, the time synchronization packet includes a field indicating a fixed time error and/or a dynamic time error.
Optionally, the apparatus for receiving time information further includes:
and the processing module is used for obtaining the time error according to the field which represents the fixed time error and/or the dynamic time error.
Optionally, obtaining the time error according to the fields representing the fixed time error and the dynamic time error includes:
by the formula: time error ═ value of fixed time error field + (value of dynamic time error field) 1/2 And obtaining a time error.
Optionally, the time synchronization packet further carries time precision information of a time server.
Optionally, the processing module is further configured to: and obtaining the end-to-end time error between the sending node and the receiving node according to the fixed time error, the dynamic time error and the time precision of the time server.
Optionally, by the formula: time precision of the time server + fixed time error + (dynamic time error) end-to-end time error 1/2 And obtaining the end-to-end time error.
Optionally, the processing module is further configured to: and updating an output message, wherein the output message carries the updated time precision numerical value.
Optionally, the time synchronization packet further carries: whether fixed time error and/or dynamic time error identification information is carried.
Optionally, updating an output packet, where the output packet carries the updated time precision value, and the updating includes:
and updating an output message according to the identification information, wherein the output message carries the updated time precision numerical value.
Optionally, the updated time precision value is: the time accuracy in the received time synchronization message plus the time accuracy of the receiving node.
Optionally, the step of adding the time precision in the received time synchronization message to the time precision of the receiving node includes:
the value of a fixed time error field in the received time synchronization message + the fixed time error of the receiving node;
and/or the value of the dynamic time error field in the received time synchronization message + the square value of the dynamic time error of the receiving node.
It should be noted that the apparatus is an apparatus corresponding to the method shown in fig. 3, and all the implementations in the above method embodiment are applicable to the embodiment of the apparatus, and the same technical effects can be achieved.
An embodiment of the present invention further provides a receiving node, including:
a transceiver for receiving a time synchronization packet carrying a field of accumulated time accuracy.
Optionally, the time synchronization packet includes a field indicating a fixed time error and/or a dynamic time error.
Optionally, the receiving node further includes:
a processor for deriving a time error from a field representing a fixed time error and/or a dynamic time error.
Optionally, obtaining the time error according to the fields representing the fixed time error and the dynamic time error includes:
by the formula: time error-value of fixed time error field + (value of dynamic time error field) 1/2 And obtaining a time error.
Optionally, the time synchronization packet further carries time precision information of a time server.
Optionally, the processor is further configured to: and obtaining the end-to-end time error between the sending node and the receiving node according to the fixed time error, the dynamic time error and the time precision of the time server.
Optionally, by the formula: time precision of the time server + fixed time error + (dynamic time error) end-to-end time error 1/2 Is obtained by terminating atTime error of the terminal.
Optionally, the processor is further configured to: and updating an output message, wherein the output message carries the updated time precision numerical value.
Optionally, the time synchronization packet further carries: whether fixed time error and/or dynamic time error identification information is carried.
Optionally, updating an output packet, where the output packet carries the updated time precision value, and the updating includes:
and updating an output message according to the identification information, wherein the output message carries the updated time precision numerical value.
Optionally, the updated time precision value is: the time accuracy in the received time synchronization message plus the time accuracy of the receiving node.
Optionally, the step of adding the time precision in the received time synchronization message to the time precision of the receiving node includes:
the value of a fixed time error field in the received time synchronization message + the fixed time error of the receiving node;
and/or the value of the dynamic time error field in the received time synchronization message + the square value of the dynamic time error of the receiving node.
It should be noted that the receiving node is a receiving node corresponding to the method shown in fig. 3, and all implementation manners in the method embodiment are applicable to the embodiment of the receiving node, and the same technical effect can be achieved.
An embodiment of the present invention further provides a communication device, including: a processor, a memory storing a computer program which, when executed by the processor, performs the method as described above. All the implementation manners in the above method embodiment are applicable to this embodiment, and the same technical effect can be achieved.
Embodiments of the present invention also provide a computer-readable storage medium comprising stored instructions that, when executed on a computer, cause the computer to perform the method as described above. All the implementation manners in the above method embodiment are applicable to this embodiment, and the same technical effect can be achieved.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one type of logical functional division, and other divisions may be realized in practice, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be considered as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.
The object of the invention is thus also achieved by a program or a set of programs running on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (23)
1. A method for sending time information, which is applied to a sending node, comprises the following steps:
and sending the time synchronization message carrying the accumulated time precision field to a receiving node.
2. The method according to claim 1, wherein the time synchronization packet includes a field indicating a fixed time error and/or a dynamic time error.
3. The method for sending time information according to claim 2, wherein the time synchronization packet further carries: whether fixed time error and/or dynamic time error identification information is carried.
4. The method according to claim 1, wherein the time synchronization packet uses an Announce packet type-length-value TLV to carry a field indicating accumulated time precision.
5. The method according to claim 1, wherein the time synchronization packet further carries time precision information of a time server.
6. A method for receiving time information, which is applied to a receiving node, the method comprising: receiving a time synchronization packet carrying a field of accumulated time precision.
7. The method for receiving time information according to claim 6, wherein the time synchronization message includes a field indicating a fixed time error and/or a dynamic time error.
8. The method for receiving time information according to claim 7, further comprising:
the time error is derived from a field representing a fixed time error and/or a dynamic time error.
9. The method for receiving time information according to claim 8, wherein the obtaining of the time error from the fields indicating the fixed time error and the dynamic time error comprises:
by the formula: time error ═ value of fixed time error field + (value of dynamic time error field) 1/2 And obtaining a time error.
10. The method for receiving time information according to claim 7, wherein the time synchronization packet further carries time precision information of a time server.
11. The method for receiving time information according to claim 10, further comprising:
and obtaining the end-to-end time error between the sending node and the receiving node according to the fixed time error, the dynamic time error and the time precision of the time server.
12. The method for receiving time information according to claim 11, wherein the time information is obtained by the formula: time precision of the time server + fixed time error + (dynamic time error) end-to-end time error 1/2 And obtaining the end-to-end time error.
13. The method for receiving time information according to claim 6, further comprising:
and updating an output message, wherein the output message carries the updated time precision numerical value.
14. The method for receiving time information according to claim 13, wherein the time synchronization packet further carries: whether fixed time error and/or dynamic time error identification information is carried.
15. The method for receiving time information according to claim 14, wherein updating an output packet, the output packet carrying the updated time precision value, comprises:
and updating an output message according to the identification information, wherein the output message carries the updated time precision numerical value.
16. The method for receiving time information according to claim 15, wherein the updated time precision value is: the time accuracy in the received time synchronization message plus the time accuracy of the receiving node.
17. The method for receiving time information according to claim 16, wherein the step of adding the time precision in the received time synchronization message to the time precision of the receiving node comprises:
the value of a fixed time error field in the received time synchronization message + the fixed time error of the receiving node; and/or
The value of the dynamic time error field in the received time synchronization message + the square value of the dynamic time error of the receiving node.
18. A device for transmitting time information, applied to a transmitting node, comprising:
and the receiving and sending module is used for sending the time synchronization message carrying the accumulated time precision field to the receiving node.
19. A transmitting node, comprising:
and the transceiver is used for sending the time synchronization message carrying the accumulated time precision field to the receiving node.
20. A receiving apparatus of time information, applied to a receiving node, comprising:
and the receiving and sending module is used for receiving the time synchronization message carrying the field with the accumulated time precision.
21. A receiving node, comprising:
a transceiver for receiving a time synchronization packet carrying a field of accumulated time precision.
22. A communication device, comprising: a processor, a memory storing a computer program which, when executed by the processor, performs the method of any of claims 1 to 5 or the method of any of claims 6 to 17.
23. A computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method of any of claims 1 to 5 or the method of any of claims 6 to 17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110214080.0A CN114980296A (en) | 2021-02-25 | 2021-02-25 | Method, device and equipment for sending and receiving time information |
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| CN202110214080.0A CN114980296A (en) | 2021-02-25 | 2021-02-25 | Method, device and equipment for sending and receiving time information |
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| US20110141975A1 (en) * | 2008-07-04 | 2011-06-16 | Rohde & Schwarz Gmbh & Co. Kg | Method and a system for time synchronisation between a control centre and several transmitters |
| WO2015169045A1 (en) * | 2014-05-05 | 2015-11-12 | 深圳市中兴微电子技术有限公司 | Time synchronization method, device and system, and storage medium |
| CN109347589A (en) * | 2018-10-15 | 2019-02-15 | 中国移动通信有限公司研究院 | A kind of data transmission method and network node |
| CN111278101A (en) * | 2019-01-28 | 2020-06-12 | 维沃移动通信有限公司 | Time information processing method, terminal equipment and network side equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20110141975A1 (en) * | 2008-07-04 | 2011-06-16 | Rohde & Schwarz Gmbh & Co. Kg | Method and a system for time synchronisation between a control centre and several transmitters |
| WO2015169045A1 (en) * | 2014-05-05 | 2015-11-12 | 深圳市中兴微电子技术有限公司 | Time synchronization method, device and system, and storage medium |
| CN109347589A (en) * | 2018-10-15 | 2019-02-15 | 中国移动通信有限公司研究院 | A kind of data transmission method and network node |
| CN111278101A (en) * | 2019-01-28 | 2020-06-12 | 维沃移动通信有限公司 | Time information processing method, terminal equipment and network side equipment |
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