CN114586297A - 一种同步方法及设备 - Google Patents
一种同步方法及设备 Download PDFInfo
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- CN114586297A CN114586297A CN201980101553.7A CN201980101553A CN114586297A CN 114586297 A CN114586297 A CN 114586297A CN 201980101553 A CN201980101553 A CN 201980101553A CN 114586297 A CN114586297 A CN 114586297A
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- 238000000034 method Methods 0.000 title claims abstract description 55
- 230000000737 periodic effect Effects 0.000 claims abstract description 125
- 230000005540 biological transmission Effects 0.000 claims description 78
- 230000001360 synchronised effect Effects 0.000 claims description 36
- 239000003550 marker Substances 0.000 claims description 34
- 238000004590 computer program Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 13
- 230000006870 function Effects 0.000 description 13
- 238000012545 processing Methods 0.000 description 6
- 230000004044 response Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002372 labelling Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 102100036466 Delta-like protein 3 Human genes 0.000 description 1
- 101710112748 Delta-like protein 3 Proteins 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
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- 239000004065 semiconductor Substances 0.000 description 1
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- 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
- H04J3/0685—Clock or time synchronisation in a node; Intranode synchronisation
- H04J3/0697—Synchronisation in a packet node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0015—Synchronization between nodes one node acting as a reference for the others
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/02—Data link layer protocols
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
本申请实施例公开了一种同步方法及设备:首先,设备按预定周期在MAC层向PHY层发送的数据码流中标注出周期性码块,之后通过PHY层向对端设备发送上述数据码流,并在发送时记录下每个周期性码块的发送时间作为第一时间戳,且将第一时间戳返回MAC层。即设备在PHY层通过对从MAC层接收到周期性码块打上时间戳的方式,设置了一个基于PHY层的时间参考标尺(即第一时间戳),若有同步报文需发送至对端设备,由于时间参考标尺是在PHY层标记的时间戳,因此,设备就会以该时间参考标尺实时计算该同步报文实质从PHY层发出的时间点(即打上发送时间戳),从而可得到同步报文由PHY层发送的时间点,消除了PHY层的时延,提高了同步报文(如,1588报文)的发送时间戳的精度。
Description
PCT国内申请,说明书已公开。
Claims (31)
- PCT国内申请,权利要求书已公开。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2019/112487 WO2021077289A1 (zh) | 2019-10-22 | 2019-10-22 | 一种同步方法及设备 |
Publications (2)
Publication Number | Publication Date |
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CN114586297A true CN114586297A (zh) | 2022-06-03 |
CN114586297B CN114586297B (zh) | 2024-06-11 |
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CN201980101553.7A Active CN114586297B (zh) | 2019-10-22 | 2019-10-22 | 一种同步方法及设备 |
Country Status (4)
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US (1) | US20220248353A1 (zh) |
EP (1) | EP4044466A4 (zh) |
CN (1) | CN114586297B (zh) |
WO (1) | WO2021077289A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023241274A1 (zh) * | 2022-06-17 | 2023-12-21 | 华为技术有限公司 | 数据处理装置、主备切换方法以及系统 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2518921B (en) * | 2014-03-24 | 2016-02-17 | Imagination Tech Ltd | High definition timing synchronisation function |
CN111385678B (zh) * | 2018-12-29 | 2023-05-12 | 中兴通讯股份有限公司 | 一种实现光链路通道自协商的方法和装置 |
US11844037B2 (en) * | 2021-07-23 | 2023-12-12 | Charter Communications Operating, Llc | Automated determination of a timing offset for DOCSIS time protocol to provide precision time protocol accuracy |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150139251A1 (en) * | 2013-11-15 | 2015-05-21 | Broadcom Corporation | Time synchronization architecture in a network device |
US20170006567A1 (en) * | 2015-06-30 | 2017-01-05 | International Business Machines Corporation | Network clock synchronization |
CN109699199A (zh) * | 2017-08-23 | 2019-04-30 | 华为技术有限公司 | 一种报文处理的方法和网络设备 |
CN110224775A (zh) * | 2018-03-01 | 2019-09-10 | 中兴通讯股份有限公司 | 一种时间信息确定的方法、装置及设备 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100932265B1 (ko) * | 2007-10-17 | 2009-12-16 | 한국전자통신연구원 | 패킷 전송 방법 및 장치 |
US9392565B2 (en) * | 2010-03-05 | 2016-07-12 | Samsung Electronics Co., Ltd. | Method and system for accurate clock synchronization through interaction between communication layers and sub-layers for communication systems |
CN101814984B (zh) * | 2010-04-09 | 2012-06-27 | 华为技术有限公司 | 获取不对称延迟时间的方法和装置 |
CN104113517A (zh) * | 2013-04-22 | 2014-10-22 | 华为技术有限公司 | 时间戳生成方法、装置及系统 |
US10798673B2 (en) * | 2016-04-01 | 2020-10-06 | Apple Inc. | Autonomous resource selection for vehicle-to-vehicle sidelink communications |
CN108322280B (zh) * | 2017-12-12 | 2019-07-23 | 北京时代民芯科技有限公司 | 一种分布式计算机网络时钟同步延时补偿方法 |
CN115606121A (zh) * | 2020-03-23 | 2023-01-13 | 马维尔以色列(M.I.S.L.)有限公司(Il) | 网络设备中的一步时间戳 |
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2019
- 2019-10-22 WO PCT/CN2019/112487 patent/WO2021077289A1/zh unknown
- 2019-10-22 EP EP19949754.6A patent/EP4044466A4/en active Pending
- 2019-10-22 CN CN201980101553.7A patent/CN114586297B/zh active Active
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2022
- 2022-04-21 US US17/725,962 patent/US20220248353A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150139251A1 (en) * | 2013-11-15 | 2015-05-21 | Broadcom Corporation | Time synchronization architecture in a network device |
US20170006567A1 (en) * | 2015-06-30 | 2017-01-05 | International Business Machines Corporation | Network clock synchronization |
CN109699199A (zh) * | 2017-08-23 | 2019-04-30 | 华为技术有限公司 | 一种报文处理的方法和网络设备 |
CN110224775A (zh) * | 2018-03-01 | 2019-09-10 | 中兴通讯股份有限公司 | 一种时间信息确定的方法、装置及设备 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023241274A1 (zh) * | 2022-06-17 | 2023-12-21 | 华为技术有限公司 | 数据处理装置、主备切换方法以及系统 |
Also Published As
Publication number | Publication date |
---|---|
WO2021077289A1 (zh) | 2021-04-29 |
EP4044466A4 (en) | 2022-10-26 |
EP4044466A1 (en) | 2022-08-17 |
CN114586297B (zh) | 2024-06-11 |
US20220248353A1 (en) | 2022-08-04 |
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