WO2016054884A1 - Procédé de surveillance d'écart de fréquence, dispositif et support de stockage informatique - Google Patents

Procédé de surveillance d'écart de fréquence, dispositif et support de stockage informatique Download PDF

Info

Publication number
WO2016054884A1
WO2016054884A1 PCT/CN2015/072628 CN2015072628W WO2016054884A1 WO 2016054884 A1 WO2016054884 A1 WO 2016054884A1 CN 2015072628 W CN2015072628 W CN 2015072628W WO 2016054884 A1 WO2016054884 A1 WO 2016054884A1
Authority
WO
WIPO (PCT)
Prior art keywords
group
timestamp
frequency offset
ptp
clock node
Prior art date
Application number
PCT/CN2015/072628
Other languages
English (en)
Chinese (zh)
Inventor
李春华
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2016054884A1 publication Critical patent/WO2016054884A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter

Definitions

  • the present invention relates to the field of packet synchronization networks, and in particular, to a frequency offset monitoring method, apparatus, and computer storage medium.
  • the time synchronization network of the precision clock synchronization protocol standard 1588v2 based on network measurement and control system has been widely used in mobile operators.
  • the packet bearer clock node needs to monitor the packet layer time synchronization and the performance of the clock node internal time module in real time.
  • OAM Operation Administration and Maintenance
  • Embodiments of the present invention provide a frequency offset monitoring method, apparatus, and computer storage medium, which can effectively implement frequency offset monitoring and control of adjacent clock nodes.
  • An embodiment of the present invention provides a frequency offset monitoring method, where the method includes:
  • Determining the slave clock node to be tested relative to the master clock according to the timestamp group of the obtained PTP packet The frequency offset estimate of the node.
  • the method further includes:
  • the method further includes:
  • the statistical data is reported for the network manager to determine whether the statistical data exceeds an alarm threshold.
  • the timestamp group of the PTP packet includes: a timestamp of each synchronous Sync message, a timestamp of the delay request Delay_Req message, and a timestamp of the delayed response Delay_Resp message.
  • the determining, according to the timestamp group of the acquired PTP packet, the frequency offset estimation value of the measured slave clock node relative to the primary clock node includes:
  • the timestamp group corresponding to the preset time period and the timestamp group of the first group of PTP messages and the timestamp group of the last group of PTP messages that are selected in the preset time period And determining a frequency offset estimation value corresponding to the preset time period.
  • An embodiment of the present invention further provides a frequency offset monitoring apparatus, where the apparatus includes: an acquiring module, and a determining module; wherein
  • the acquiring module is configured to receive a triggering instruction, and obtain a timestamp group of the PTP packet in response to the received triggering instruction;
  • the determining module is configured to determine, according to the timestamp group of the acquired PTP packet, the to-be-tested The frequency offset estimate of the clock node relative to the primary clock node.
  • the device further includes: a determining module and a first reporting module; wherein
  • the determining module is configured to determine whether the determined frequency offset estimation value exceeds an alarm threshold
  • the first reporting module is configured to report the alarm information when the determined frequency offset estimation value exceeds the alarm threshold.
  • the device further includes: a statistics module and a second reporting module; wherein
  • the statistic module is configured to perform statistics on the determined frequency offset estimation values to obtain statistical data
  • the second reporting module is configured to report the statistical data, so that the network manager determines whether the statistical data exceeds an alarm threshold.
  • the determining module includes a first determining module, a screening module, and a second determining module; wherein
  • the first determining module is configured to determine, according to the timestamp group of the obtained PTP packet, a time offset of the slave clock node and the master clock node to be tested;
  • the filtering module is configured to: in the timestamp group of the obtained PTP packet, filter the first group of timestamp groups and the timestamp group of the last group of PTP messages in the preset time period;
  • the second determining module is configured to: according to the determined time offset corresponding to the preset time period, and the selected time stamp group and the last group of the first group of PTP messages in the preset time period A timestamp group of a set of PTP packets, and determining a frequency offset estimation value corresponding to the preset time period.
  • the second determining module is configured according to the determined time offset corresponding to the preset time period T, and the filtered first group of PTP messages that are within a preset time period T
  • the timestamp group and the timestamp group of the last set of PTP messages determine the calculation formula of the frequency offset estimation value F corresponding to the preset time period T as follows:
  • the T1 and T2 are the last set of PTP messages in the preset time period T, respectively.
  • the sending time and receiving time of the synchronous Sync message in the timestamp group; the t1 and t2 are the sending time and receiving of the synchronous Sync message in the first group of timestamp groups in the preset time period T, respectively.
  • Time; the Theta is the summed sum of all time offsets Offset corresponding to the preset time period T determined.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the frequency offset monitoring method according to the embodiment of the invention.
  • the frequency offset monitoring method and device and the computer storage medium provided by the embodiment of the present invention receive a triggering instruction from the clock node to be tested; obtain a timestamp group of the PTP packet in response to the triggering instruction; and according to the obtained PTP packet The timestamp group determines the frequency offset estimate of the slave clock node to be tested relative to the master clock node. In this way, frequency offset monitoring of adjacent clock nodes can be effectively implemented by using the slave clock node to be tested.
  • determining whether the determined frequency offset estimation value exceeds an alarm threshold value when the determined frequency offset estimation value exceeds an alarm threshold value, reporting alarm information; or, performing statistics on the determined frequency offset estimation value, Obtaining statistics; reporting the statistics for the network manager to determine whether the statistics exceeds an alarm threshold.
  • FIG. 1 is a schematic flowchart 1 of an implementation process of a frequency offset monitoring method according to an embodiment of the present invention
  • FIG. 2 is a second schematic diagram of an implementation process of a frequency offset monitoring method according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart 3 of an implementation process of a frequency offset monitoring method according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram 1 of a frequency offset monitoring device according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a determining module in a frequency offset monitoring apparatus according to an embodiment of the present invention.
  • FIG. 6 is a second schematic structural diagram of a frequency offset monitoring apparatus according to an embodiment of the present invention.
  • FIG. 7 is a third schematic structural diagram of a frequency offset monitoring apparatus according to an embodiment of the present invention.
  • the slave clock node to be tested receives the triggering command; the timestamp group of the PTP packet is obtained in response to the triggering command; and the clock to be tested is determined according to the timestamp group of the obtained PTP packet.
  • FIG. 1 is a schematic flowchart 1 of an implementation process of a frequency offset monitoring method according to an embodiment of the present invention. As shown in FIG. 1 , a frequency offset monitoring method according to an embodiment of the present invention includes:
  • Step S100 receiving a trigger instruction
  • the network management manager in the process of time synchronization between the primary clock node and the secondary clock node, sends a trigger instruction to the slave clock node to be tested, for starting the frequency of the slave clock node to be tested.
  • the partial monitoring function is configured to monitor a frequency offset of the slave clock node to be tested relative to the master clock node; wherein the slave clock node to be tested may be any slave clock node in the time synchronization network.
  • Step S101 Acquire a timestamp group of the PTP packet in response to the triggering instruction.
  • the PTP packet is a packet of the slave clock node and the master clock node in time synchronization.
  • the timestamp group of the PTP packet includes: a timestamp of each synchronous Sync message, a timestamp of the delay request Delay_Req message, and a timestamp of the delayed response Delay_Resp message. It should be noted that the timestamp group of the PTP packet may further include a timestamp of following the Follow_Up message.
  • Step S102 Determine a frequency offset estimation value of the slave clock node to be tested relative to the master clock node according to the timestamp group of the acquired PTP message.
  • the slave clock node and the master to be tested are determined according to the timestamp group of the obtained PTP packet.
  • the time offset of the clock node; the timestamp group of the obtained PTP packet is used to filter the first group of timestamp groups in the preset time period T and the timestamp group of the last group of PTP messages;
  • step S102 the process of determining the time offset of the slave clock node and the master clock node to be tested according to the timestamp group of the obtained PTP packet belongs to the prior art, and details are not described herein again.
  • the timestamp group of the text determines the calculation formula of the frequency offset estimation value F corresponding to the preset time period T as follows:
  • the T1 and T2 are respectively the sending time and the receiving time of the synchronous Sync message in the timestamp group of the last set of PTP messages in the preset time period T; the t1 and t2 are respectively The transmission time and the reception time of the synchronization Sync message in the first group of time stamp groups in the preset time period T; the Theta is the accumulated sum of the determined time offsets Offset corresponding to the preset time period T .
  • step S101 and step S102 may be periodic or non-periodic.
  • the slave clock node to be tested is triggered to perform step S101 and step S102 in a periodic manner; for example, in the execution of step S101, the slave clock node to be tested is executed every 1 second. The operation of the timestamp group of the PTP packet is obtained. Similarly, in the execution of the step S102, the slave clock node to be tested determines the clock to be tested according to the timestamp group of the acquired PTP packet every 1 second. Frequency offset of the node relative to the primary clock node estimated value.
  • the slave clock node to be tested may be triggered to perform step S101 and step S102 in a non-periodic manner; for example, in the execution of step S101, the slave clock node that triggers the test may be preset to perform step S101.
  • the time interval is an incremental sequence, and the time interval may be a value of 1 s, 3 s, 2 s, etc.; the time interval may also be a random array, for example, the time interval takes values of 1 s, 2 s, 3 s, .
  • the value of the time interval may also be an incremental sequence or a random array.
  • the frequency offset monitoring method according to the embodiment of the present invention can effectively implement frequency offset monitoring of adjacent clock nodes by using the slave clock node to be tested.
  • the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to perform the frequency offset monitoring method according to the first embodiment of the present invention.
  • FIG. 2 is a schematic flowchart 2 of the implementation process of the frequency offset monitoring method according to the embodiment of the present invention. As shown in FIG. 2, the frequency offset monitoring method in the embodiment of the present invention includes:
  • Step S100 receiving a trigger instruction
  • the network management manager in the process of time synchronization between the primary clock node and the secondary clock node, sends a trigger instruction to the slave clock node to be tested, for starting the frequency of the slave clock node to be tested.
  • the partial monitoring function is configured to monitor a frequency offset of the slave clock node to be tested relative to the master clock node; wherein the slave clock node to be tested may be any slave clock node in the time synchronization network.
  • Step S101 Acquire a timestamp group of a precision time protocol PTP message in response to the triggering instruction
  • the PTP packet is a packet of the slave clock node and the master clock node in time synchronization.
  • the timestamp group of the PTP packet includes: a timestamp of each synchronous Sync message, a timestamp of the delay request Delay_Req message, and a timestamp of the delayed response Delay_Resp message. It should be noted that the timestamp group of the PTP packet may further include a timestamp of following the Follow_Up message.
  • Step S102 Determine, according to the timestamp group of the acquired PTP packet, a frequency offset estimation value of the slave clock node to be tested relative to the master clock node;
  • the time offset of the slave clock node and the master clock node to be tested is determined according to the timestamp group of the obtained PTP packet; and the source is in the preset time period T in the timestamp group of the obtained PTP packet.
  • a first set of timestamp groups and a timestamp group of the last set of PTP messages are determined, and the frequency offset estimation value corresponding to the preset time period T is determined.
  • step S102 the process of determining the time offset of the slave clock node and the master clock node to be tested according to the timestamp group of the obtained PTP packet belongs to the prior art, and details are not described herein again.
  • the timestamp group of the text determines the calculation formula of the frequency offset estimation value F corresponding to the preset time period T as follows:
  • the T1 and T2 are respectively the sending time and the receiving time of the synchronous Sync message in the timestamp group of the last set of PTP messages in the preset time period T; the t1 and t2 are respectively The transmission time and the reception time of the synchronization Sync message in the first group of time stamp groups in the preset time period T; the Theta is the accumulated sum of the determined time offsets Offset corresponding to the preset time period T .
  • Step S103 determining whether the determined frequency offset estimation value F exceeds the alarm threshold; when the determined frequency offset estimation value does not exceed the alarm threshold, since the frequency offset estimation value is within the allowable error range, It is not necessary to report the alarm information to the network management server, and the process ends; otherwise, step S104 is performed;
  • the alarm threshold value is usually 5 ppb; the value of the alarm threshold value may also be preset according to actual conditions.
  • Step S104 When the determined frequency offset estimation value exceeds the alarm threshold, the alarm information is reported.
  • the reported alarm information includes at least a PTP logical port number of the slave clock node to be tested and the determined frequency offset estimation value F.
  • the reported alarm information may further include a parent port number of the slave clock node to be tested, and the port number.
  • the alarm information reported may also include an alarm time and the like.
  • the slave clock nodes to be tested are usually triggered to perform steps S101 to S102 in a periodic manner; for example, in the execution of step S101, the slave clock node to be tested is executed every 1 second.
  • the operation of obtaining the timestamp group of the PTP packet at a time; in the execution of the step S102, the slave clock node to be tested determines the relative clock node to be tested according to the timestamp group of the acquired PTP packet every 1 second.
  • the estimated frequency offset of the primary clock node is usually triggered to perform steps S101 to S102 in a periodic manner; for example, in the execution of step S101, the slave clock node to be tested is executed every 1 second.
  • the operation of obtaining the timestamp group of the PTP packet at a time; in the execution of the step S102, the slave clock node to be tested determines the relative clock node to be tested according to the timestamp group of the acquired PTP packet every 1 second.
  • the estimated frequency offset of the primary clock node is usually triggered
  • step S101 to S102 may be performed by using the non-periodic manner to trigger the slave clock node to be tested.
  • the time for triggering the slave clock node to be tested to perform step S101 may be preset.
  • the interval is an incremental sequence.
  • the time interval may be 1s, 3s, 2s, etc.; the time interval may also be a random array, for example, the time interval takes values of 1s, 2s, 3s, ..., etc.
  • the value of the time interval may also be an incremental sequence or a random array.
  • the frequency offset monitoring method in the embodiment of the present invention can effectively implement frequency offset monitoring and control on adjacent clock nodes by combining the clock node to be tested and the network manager, thereby implementing a time synchronization network for 1588v2. Efficient operation and maintenance.
  • the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to perform the frequency offset monitoring method according to the second embodiment of the present invention.
  • a frequency offset monitoring method according to an embodiment of the present invention includes:
  • Step S100 receiving a trigger instruction
  • the network management manager in the process of time synchronization between the primary clock node and the secondary clock node, sends a trigger instruction to the slave clock node to be tested, for starting the frequency of the slave clock node to be tested.
  • the partial monitoring function is configured to monitor a frequency offset of the slave clock node to be tested relative to the master clock node; wherein the slave clock node to be tested may be any slave clock node in the time synchronization network.
  • Step S101 Acquire a timestamp group of a precision time protocol PTP message in response to the triggering instruction
  • the PTP packet is a packet of the slave clock node and the master clock node in time synchronization.
  • the timestamp group of the PTP packet includes: a timestamp of the timestamp delay request Delay_Req message of each synchronous Sync message, and a timestamp of the delay response Delay_Resp message. It should be noted that the timestamp group of the PTP packet may further include a timestamp of following the Follow_Up message.
  • Step S102 Determine, according to the timestamp group of the acquired PTP packet, a frequency offset estimation value of the slave clock node to be tested relative to the master clock node;
  • the time offset of the slave clock node and the master clock node to be tested is determined according to the timestamp group of the obtained PTP packet; and the source is in the preset time period T in the timestamp group of the obtained PTP packet.
  • step S102 the process of determining the time offset of the slave clock node and the master clock node to be tested according to the timestamp group of the obtained PTP packet belongs to the prior art, and details are not described herein again.
  • the timestamp group of the text determines the calculation formula of the frequency offset estimation value F corresponding to the preset time period T as follows:
  • the T1 and T2 are respectively the sending time and the receiving time of the synchronous Sync message in the timestamp group of the last set of PTP messages in the preset time period T; the t1 and t2 are respectively The transmission time and the reception time of the synchronization Sync message in the first group of time stamp groups in the preset time period T; the Theta is the accumulated sum of the determined time offsets Offset corresponding to the preset time period T .
  • Step S103a Perform statistics on the determined frequency offset estimation values to obtain statistical data.
  • the obtained statistical data includes the PTP logical port number of the slave clock node to be tested and the determined frequency offset estimated value F, and the maximum and minimum values of the frequency offset estimated value F.
  • Step S104a Report the statistical data for the network manager to determine whether the statistical data exceeds an alarm threshold.
  • the alarm threshold value is usually 5 ppb.
  • the PTP logical port number of the slave clock node to be tested needs to be reported to the network manager; the parent port number, the port number, and the machine may be further reported to the network manager. Frame number, slot number, etc.
  • the slave clock nodes to be tested are usually triggered to perform steps S101 to S102 in a periodic manner; for example, in the execution of step S101, the slave clock node to be tested is executed every 1 second.
  • the operation of obtaining the timestamp group of the PTP packet at a time; in the execution of the step S102, the slave clock node to be tested determines the relative clock node to be tested according to the timestamp group of the acquired PTP packet every 1 second.
  • the estimated frequency offset of the primary clock node is usually triggered to perform steps S101 to S102 in a periodic manner; for example, in the execution of step S101, the slave clock node to be tested is executed every 1 second.
  • the operation of obtaining the timestamp group of the PTP packet at a time; in the execution of the step S102, the slave clock node to be tested determines the relative clock node to be tested according to the timestamp group of the acquired PTP packet every 1 second.
  • the estimated frequency offset of the primary clock node is usually triggered
  • step S101 to S102 may be performed by using the non-periodic manner to trigger the slave clock node to be tested.
  • the time for triggering the slave clock node to be tested to perform step S101 may be preset.
  • the interval is an incremental sequence.
  • the time interval may be 1s, 3s, 2s, etc.; the time interval may also be a random array, for example, the time interval takes values of 1s, 2s, 3s, ..., etc.
  • the value of the time interval may also be an incremental sequence or a random array.
  • the frequency offset monitoring method in the embodiment of the present invention can effectively implement frequency offset monitoring and control on adjacent clock nodes by combining the clock node to be tested and the network manager, thereby implementing a time synchronization network for 1588v2. Efficient operation and maintenance.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the frequency offset monitoring method according to the third embodiment of the invention.
  • the apparatus includes: an obtaining module 10, and a determining module 20;
  • the acquiring module 10 is configured to receive a triggering instruction, and obtain a timestamp group of the PTP packet in response to the received triggering instruction;
  • the PTP packet is a packet of the slave clock node and the master clock node in time synchronization.
  • the timestamp group of the PTP message includes: a timestamp of each synchronous Sync message and The timestamp of the follow-up message corresponding to the synchronous Sync message, the timestamp of the delay request Delay_Req message, and the timestamp of the delayed response Delay_Resp message. It should be noted that the timestamp group of the PTP packet may further include a timestamp of following the Follow_Up message.
  • the determining module 20 is configured to determine a frequency offset estimation value of the slave clock node to be tested relative to the master clock node according to the timestamp group of the acquired PTP message.
  • the determining module 20 includes a first determining module 21, a screening module 22, and a second determining module 23;
  • the first determining module 21 is configured to determine, according to the timestamp group of the acquired PTP packet, a time offset of the slave clock node and the master clock node to be tested;
  • the screening module 22 is configured to: in the timestamp group of the obtained PTP packet, filter the first group of timestamp groups and the timestamp group of the last group of PTP messages within a preset time period;
  • the second determining module 23 is configured to: according to the determined time offset corresponding to the preset time period, and the selected time stamp group of the first group of PTP messages that are in the preset time period The timestamp group of the last set of PTP messages determines the frequency offset estimation value corresponding to the preset time period.
  • the second determining module 23 is configured according to the determined time offset corresponding to the preset time period T, and the selected time stamp group of the first group of PTP messages in the preset time period T. And the timestamp group of the last set of PTP messages, and the calculation formula of the frequency offset estimation value F corresponding to the preset time period T is determined as follows:
  • the T1 and T2 are respectively the sending time and the receiving time of the synchronous Sync message in the timestamp group of the last set of PTP messages in the preset time period T; the t1 and t2 are respectively The transmission time and the reception time of the synchronization Sync message in the first group of time stamp groups in the preset time period T; the Theta is the accumulated sum of the determined time offsets Offset corresponding to the preset time period T .
  • the device further includes a determining module 30 and a first reporting module 40;
  • the determining module 30 is configured to determine whether the determined frequency offset estimation value exceeds an alarm threshold
  • the first reporting module 40 is configured to report the alarm information when the determined frequency offset estimation value exceeds the alarm threshold.
  • the device further includes a statistic module 31 and a second reporting module 41;
  • the statistic module 31 is configured to perform statistics on the determined frequency offset estimation values to obtain statistical data.
  • the second reporting module 41 is configured to report the statistical data, so that the network manager determines whether the statistical data exceeds an alarm threshold.
  • the obtaining module 10, the determining module 20, the first determining module 21, the screening module 22, the second determining module 23, the determining module 30, the first reporting module 40, the statistic module 31, and the second reporting module 41 can be measured by a central processing unit (CPU), a microprocessor (Micor Processor Unit (MPU), a digital signal processor (DSP), or a field programmable gate array in the slave clock node to be tested. (Field Programmable Gate Array, FPGA) and other implementations.
  • CPU central processing unit
  • MPU Microprocessor Processor Unit
  • DSP digital signal processor
  • FPGA Field Programmable Gate Array
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • the embodiment of the present invention receives the triggering instruction from the clock node to be tested; in response to the triggering instruction, obtains a timestamp group of the PTP packet of the precise time protocol; and determines, according to the timestamp group of the obtained PTP packet, the relative clock node to be tested.
  • the estimated frequency offset of the primary clock node In this way, frequency offset monitoring of adjacent clock nodes can be effectively implemented by using the slave clock node to be tested.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

La présente invention concerne un procédé de surveillance d'écart de fréquence, un dispositif et un support de stockage informatique, le procédé consistant à : recevoir une instruction de déclenchement ; obtenir un groupe d'horodatage d'un message de protocole de temps de précision (PTP) en réponse à l'instruction de déclenchement ; déterminer une valeur d'écart de fréquence estimée d'un nœud d'horloge esclave à surveiller par rapport à un nœud d'horloge maître en fonction du groupe d'horodatage du message PTP obtenu.
PCT/CN2015/072628 2014-10-08 2015-02-10 Procédé de surveillance d'écart de fréquence, dispositif et support de stockage informatique WO2016054884A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410530703.5A CN105577348B (zh) 2014-10-08 2014-10-08 一种基于时间同步网的频偏监测方法和装置
CN201410530703.5 2014-10-08

Publications (1)

Publication Number Publication Date
WO2016054884A1 true WO2016054884A1 (fr) 2016-04-14

Family

ID=55652526

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/072628 WO2016054884A1 (fr) 2014-10-08 2015-02-10 Procédé de surveillance d'écart de fréquence, dispositif et support de stockage informatique

Country Status (2)

Country Link
CN (1) CN105577348B (fr)
WO (1) WO2016054884A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019104522A1 (fr) * 2017-11-29 2019-06-06 Telefonaktiebolaget Lm Ericsson (Publ) Procédés et dispositifs associés à un réseau flexe
CN113411153A (zh) * 2021-06-07 2021-09-17 中国人民解放军国防科技大学 一种用于时间敏感网络的集中式控制时间同步方法
CN115642976A (zh) * 2022-10-10 2023-01-24 广东越新微系统研究院 一种混合优化时间同步方法
CN115882995A (zh) * 2023-02-01 2023-03-31 南京美乐威电子科技有限公司 一种fpga模组和音频转换设备

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105915308B (zh) * 2016-07-08 2018-04-27 腾讯科技（深圳）有限公司 一种时间同步方法、装置及系统
CN109474363A (zh) * 2018-12-11 2019-03-15 中国航空工业集团公司西安航空计算技术研究所 一种基于ieee 1588协议的验证方法及装置
CN111654350A (zh) * 2020-07-07 2020-09-11 范雯 一种检测通信传送网络网元设备频率偏差的方法
CN115276866B (zh) * 2022-06-02 2024-05-14 智己汽车科技有限公司 一种智能驾驶系统的时钟同步方法及设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101834712A (zh) * 2010-04-19 2010-09-15 浙江大学 利用ieee1588协议实现精确时间同步的方法
CN101977104A (zh) * 2010-11-13 2011-02-16 上海交通大学 基于ieee1588精确时钟同步协议系统及其同步方法
CN102035639A (zh) * 2009-09-30 2011-04-27 华为技术有限公司 时间同步方法、装置和系统
CN102104475A (zh) * 2011-01-31 2011-06-22 上海交通大学 基于ieee1588的同步系统及其同步方法
CN102185686A (zh) * 2011-05-16 2011-09-14 中兴通讯股份有限公司 基于ieee 1588协议调整频率的方法及网络装置
CN103428716A (zh) * 2012-05-17 2013-12-04 中兴通讯股份有限公司 动态调整ptp报文速率的方法及装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104080115B (zh) * 2013-03-28 2018-02-23 中国移动通信集团公司 一种时间同步性能监测方法、装置及系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102035639A (zh) * 2009-09-30 2011-04-27 华为技术有限公司 时间同步方法、装置和系统
CN101834712A (zh) * 2010-04-19 2010-09-15 浙江大学 利用ieee1588协议实现精确时间同步的方法
CN101977104A (zh) * 2010-11-13 2011-02-16 上海交通大学 基于ieee1588精确时钟同步协议系统及其同步方法
CN102104475A (zh) * 2011-01-31 2011-06-22 上海交通大学 基于ieee1588的同步系统及其同步方法
CN102185686A (zh) * 2011-05-16 2011-09-14 中兴通讯股份有限公司 基于ieee 1588协议调整频率的方法及网络装置
CN103428716A (zh) * 2012-05-17 2013-12-04 中兴通讯股份有限公司 动态调整ptp报文速率的方法及装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019104522A1 (fr) * 2017-11-29 2019-06-06 Telefonaktiebolaget Lm Ericsson (Publ) Procédés et dispositifs associés à un réseau flexe
CN113411153A (zh) * 2021-06-07 2021-09-17 中国人民解放军国防科技大学 一种用于时间敏感网络的集中式控制时间同步方法
CN113411153B (zh) * 2021-06-07 2022-07-26 中国人民解放军国防科技大学 一种用于时间敏感网络的集中式控制时间同步方法
CN115642976A (zh) * 2022-10-10 2023-01-24 广东越新微系统研究院 一种混合优化时间同步方法
CN115882995A (zh) * 2023-02-01 2023-03-31 南京美乐威电子科技有限公司 一种fpga模组和音频转换设备

Also Published As

Publication number Publication date
CN105577348B (zh) 2020-06-30
CN105577348A (zh) 2016-05-11

Similar Documents

Publication Publication Date Title
WO2016054884A1 (fr) Procédé de surveillance d'écart de fréquence, dispositif et support de stockage informatique
US9923656B2 (en) Methods, systems, and computer readable media for testing recovered clock quality
US9813226B2 (en) Modeling a clock
WO2017032113A1 (fr) Procédé et appareil de mesure d'un écart de synchronisation temporelle
CN107360060B (zh) 一种时延测量方法及装置
CN104113386B (zh) 一种监控以太网时钟同步的方法及装置
JP5661951B2 (ja) パケット交換ネットワークのためのネットワーク要素
US9485162B2 (en) Method and system for measuring frame loss ratio
US10019333B2 (en) Methods, systems, and computer readable media for emulating network devices with different clocks
WO2017063450A1 (fr) Procédé et appareil de filtrage d'estampille temporelle
WO2018006686A1 (fr) Procédé, appareil et dispositif pour optimiser la synchronisation temporelle entre des dispositifs de réseau de communication
EP2991250B1 (fr) Procédé et appareil pour un réseau synchrone ptp
CN103563287B (zh) 同步设备和同步方法
EP3284217A1 (fr) Procédés, systèmes et supports lisibles par ordinateur pour synchroniser une temporisation entre des cartes d'interface réseau (nic) dans un dispositif de test d'équipement de réseau
JP5636093B2 (ja) デバイス間におけるクロック同期の実行方法及び装置
WO2013023530A1 (fr) Procédé et dispositif de mise en œuvre pour détecter automatiquement un retard de temps asymétrique d'une liaison 1588
CN108259109B (zh) Ptp域中的网络设备及tod同步方法
US9813174B2 (en) Time correction method and apparatus for slave clock device
WO2009043299A1 (fr) Procédé et dispositif de détermination pour le port de synchronisation d'un équipement d'horloge transparente
WO2016058347A1 (fr) Procédé et appareil pour mettre en œuvre une synchronisation de temps et d'horloge
CN104144047A (zh) 通信网络系统的同步方法、中间节点和从节点
EP2628274B1 (fr) Réduction des salves de message de vérification de continuité (mvc) dans l'association de maintenance (am) de la gestion des défauts de connectivité (gdc)
US9930627B2 (en) Metered interface
CN105530139B (zh) 一种1588设备自检方法及装置
WO2022144022A1 (fr) Procédé et appareil de surveillance synchrone, serveur temporel et serveur temporel en aval

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15848561

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15848561

Country of ref document: EP

Kind code of ref document: A1