[go: up one dir, main page]

WO2025210673A1 - Système et procédé de gestion de transmission de paquets ptp dans un réseau de communication - Google Patents

Système et procédé de gestion de transmission de paquets ptp dans un réseau de communication

Info

Publication number
WO2025210673A1
WO2025210673A1 PCT/IN2025/050526 IN2025050526W WO2025210673A1 WO 2025210673 A1 WO2025210673 A1 WO 2025210673A1 IN 2025050526 W IN2025050526 W IN 2025050526W WO 2025210673 A1 WO2025210673 A1 WO 2025210673A1
Authority
WO
WIPO (PCT)
Prior art keywords
ptp
clock
network
router
packets
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.)
Pending
Application number
PCT/IN2025/050526
Other languages
English (en)
Inventor
Pradeep Kumar Bhatnagar
Aayush Bhatnagar
Meenal PATIL
Mukesh DAIYA
Anup Kumar Mishra
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jio Platforms Ltd
Original Assignee
Jio Platforms Ltd
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 Jio Platforms Ltd filed Critical Jio Platforms Ltd
Publication of WO2025210673A1 publication Critical patent/WO2025210673A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/28—Timers or timing mechanisms used in protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements

Definitions

  • the embodiments of the present disclosure generally relate to the field of wireless communication networks and systems. More particularly, the present disclosure relates to a system and a method for managing a flow of Precision Time Protocol (PTP) packets in a communication network.
  • PTP Precision Time Protocol
  • Wi-Fi® Wireless Fidelity
  • 5G 5 th Generation
  • an Indoor Small Cell (IDSC) node is a key component in the 5G networks and is responsible for managing and controlling flow of digital signals across the 5G networks.
  • the IDSC node utilizes a Precision Time Protocol (PTP) for precise time synchronization among the NEs.
  • PTP refers to a protocol that is used to synchronize clocks among the NEs and is crucial for applications necessitating precise timing in the communication networks.
  • a Wi-Fi board also referred to as a Wi-Fi chipset
  • the IDSC node to create a combo small cell.
  • a method for managing transmission of Precision Time Protocol (PTP) packets in a communication network comprises receiving, at a boundary clock router, the PTP packets from a backhaul network.
  • the method further comprises configuring, by the boundary clock router, a forwardable multicast Media Access Control (MAC) address at a combo cell and the boundary clock router.
  • PTP Precision Time Protocol
  • the method comprises establishing, by the boundary clock router, a PTP session between the boundary clock router and the combo cell based on the forwardable multicast MAC address configured at the combo cell. Furthermore, the method comprises transmitting, by the boundary clock router, the received PTP packets to the combo cell using the established PTP session.
  • the combo cell includes an Indoor Small Cell (IDSC) node and a Wi-Fi board.
  • IDSC Indoor Small Cell
  • the Wi-Fi board is configured in a bridge mode.
  • the forwardable multicast MAC address is configured at each of the IDSC node and the Wi-Fi board.
  • the forwardable multicast MAC address is 01-1B- 19-00-00-00.
  • the clock synchronization data includes information associated with at least one of a clock accuracy, a clock class, a clock offset, a clock source identity, synchronization messages, and information related to a grandmaster clock.
  • the method further comprises assigning, by the boundary clock router, a priority level for the PTP packets based on one or more network traffic classification parameters, and scheduling, by the boundary clock router, the transmission of the received PTP packets to the combo cell based on the assigned priority level.
  • a system for managing transmission of Precision Time Protocol (PTP) packets in a communication network comprises a combo cell and a boundary clock router communicatively coupled with the combo cell and a backhaul network.
  • the boundary clock router is configured to receive the PTP packets from the backhaul network and configure a forwardable multicast Media Access Control (MAC) address at the combo cell and the boundary clock router.
  • MAC Media Access Control
  • the boundary clock router is configured to establish a PTP session between the boundary clock router and the combo cell based on the forwardable multicast MAC address configured at the combo cell.
  • the boundary clock router is configured to transmit, using the established PTP session, the PTP packets received from the backhaul network to the combo cell.
  • FIG. 1 illustrates an exemplary architecture of the PTP synchronization system employing the PTP-aware nodes and the non-PTP-aware nodes in a communication network, in accordance with an example embodiment of the present disclosure.
  • FIG. 2 illustrates exemplary components of a system for managing the flow of PTP packets in the communication network, in accordance with an example embodiment of the present disclosure.
  • FIG. 3 illustrates a block diagram depicting exemplary components of a Telecom Boundary Clock (T-BC) router for provisioning the flow of PTP traffic through PTP un-aware nodes in the communication network, in accordance with an example embodiment of the present disclosure.
  • T-BC Telecom Boundary Clock
  • PTP Precision Time Protocol
  • IDSC Indoor Small Cell
  • Some aspects of the present disclosure describe a system and a method that can facilitate delivery of a PTP clock to the IDSC node while also leveraging the benefits of the Wi-Fi board by turning the Wi-Fi board into a combo small cell.
  • combo small cell refers to a combination of multiple communication technologies, such as 5G and Wi-Fi, into a single device, providing coverage and connectivity for mobile devices using different wireless standards.
  • A“PTP-aware node” refers to a network device capable of recognizing and processing PTP packets, and participates in PTP timing synchronization.
  • a “non-PTP-aware node” refers to a network device that des not recognize, interpret, process, or modify the PTP packets.
  • the non-PTP-aware node treats PTP packets as normal data traffic.
  • the PTP is used to transport synchronization signals over a packet-based network.
  • the PTP provides an efficient way to synchronize time on network nodes.
  • the PTP provides accurate distribution of time and frequency over the packet-based network.
  • a PTP synchronization system utilizes the PTP to transport the synchronization signals over the packet-based network.
  • the PTP synchronization system may comprise PTP-aware nodes and non-PTP-aware nodes.
  • FIG. 1 illustrates an exemplary architecture of a PTP synchronization system 100 (hereinafter interchangeably referred to and designated as ‘system 100’) including the PTP-aware nodes and the non-PTP-aware nodes in a communication network.
  • system 100 a PTP synchronization system 100 including the PTP-aware nodes and the non-PTP-aware nodes in a communication network.
  • the communication network may include, by way of example but not limitation, at least a portion of one or more networks having one or more nodes that transmit, receive, forward, generate, buffer, store, route, switch, process, or a combination thereof, etc. one or more messages, packets, signals, waves, voltage or current levels, some combination thereof, or so forth.
  • Each of the one or more networks may include, by way of example but not limitation, one or more of a wireless network, a wired network, an internet, an intranet, a public network, a private network, a packet- switched network, a circuit- switched network, an ad hoc network, an infrastructure network, a Public-Switched Telephone Network (PSTN), a cable network, a cellular network, a satellite network, a fiber optic network, or a combination thereof.
  • PSTN Public-Switched Telephone Network
  • the PTP synchronization system 100 includes a masterslave architecture of the PTP including a Grandmaster (GM) PTP clock 104 (hereinafter also referred to as “master node 104”), a Telecom Transparent Clock (T-TC) 106 communicatively connected to a Telecom Boundary clock (T-BC) 130- 1 and a T-BC 130-2 communicatively connected to a backhaul network 140, an Indoor Small Cell (IDSC) 110 such as 5 th Generation (5G) IDSC via a Wi-Fi board 120, and a front haul network 150.
  • GM Grandmaster
  • T-TC Telecom Transparent Clock
  • T-BC Telecom Boundary clock
  • IDSC Indoor Small Cell
  • 5G 5 th Generation
  • the GM PTP clock 104 is a reference clock for other nodes in the communication network, which adapt their clocks to the master, and may be configured to receive time information from a primary reference source i.e., Global Positioning System (GPS) receiver 102, typically a GPS satellite signal, and distributes time to slave nodes such as, but are not limited to, one or more T-BCs 130-1 and 130-2 (collectively referred to as “T-BC 130”), one or more T-TCs 106, the Wi-Fi board 120, the IDSC node 110, and the like.
  • the GM PTP clock 104 may be located at a core network.
  • the T-TC 106 refers to a transparent clock that timestamps a synchronization packet message and sends or forward to the timestamped synchronization packet message to a secondary device.
  • the T-TC 106 may enable the secondary device to calculate a latency associated with transfer and reception of the synchronization packet message.
  • the transparent clock refers to a mechanism to provide accurate distribution of the PTP packets across multi-port network components such as bridges, routers, and repeaters.
  • the transparent clock may not act as a master or slave, but instead may forward PTP event messages and provides corrections for residence time across the bridges.
  • the transparent clock may include a PTP clock to accurately synchronize network devices across the communication network.
  • the backhaul network 140 may include interface(s), hardware circuitry, logic, and/or code(s), that when operate co-operatively, provide operation(s) for interconnecting an edge network with core network.
  • the backhaul network 140 comprises an intermediate link between the core network (backbone network) and the small subnetworks at the edge of the entire hierarchical network.
  • the backhaul network 140 may be configured to carry packets/data to and from the core network.
  • a telecommunications network cell phones communicating with a cell tower constitute a local subnetwork. The connection between the cell tower and other components of the communication network begins with a backhaul links to the core of the Internet service provider network.
  • the backhaul network 140 may be used to describe the entire wired part of the communication network, although some networks have wireless instead of wired backhaul, in whole or in part, for example using microwave bands, mesh networks and edge network topologies.
  • the backhaul network 140 may use high-capacity wireless channels to get packets to fiber links.
  • the backhaul network 140 may correspond to a portion of a cellular network that performs control and management functions for the cellular network.
  • the fronthaul network 150 may include, but not limited to, one or more Remote Radio Head (RRH) devices for transmitting and receiving data of a wireless terminal, a Radio Access Network (RAN) for transmitting and receiving data of the wireless terminal to allocate MAC addresses, one or more Optical Line Terminals (OLTs), a mobile communication core network, and fronthaul devices connected to the mobile communication core network.
  • RRH Remote Radio Head
  • RAN Radio Access Network
  • OLTs Optical Line Terminals
  • the IDSC node 110 and the Wi-Fi board 120 together forms the combo small cell to enable management of transmission of the PTP packets and data traffic flow within the communication network.
  • the Wi-Fi board 120 operating in the bridge mode, serves as a transparent relay between the backhaul network 140 and the IDSC node 110, but does not natively process the PTP packets. Instead, the Wi-Fi board 120 forwards the PTP packets from the backhaul network 140 to the IDSC node 110 without modifying the PTP packets.
  • the T-BC router 130 manages the PTP packet flow between the backhaul network 140 and the IDSC node 110 and facilitates communication between the Wi-Fi board 120 and the IDSC node 110.
  • the T-BC router 130 functions as the boundary clock and synchronizes time information between the backhaul network 140 and the downstream network elements.
  • the T-BC router 130 may receive the PTP packets from a Primary Reference Time Sources (PRTS) within the backhaul network 140 and may forward the received PTP packets towards the IDSC node 110 via the Wi-Fi board 120 to ensure uninterrupted synchronization.
  • PRTS refers to a source of Primary Reference Time Clock (PRTC) that serves as a primary source of accurate and stable time information, enabling synchronization the clock signals among the one or more components of the system 100 in order to maintain precise timekeeping.
  • PRTC Primary Reference Time Clock
  • the T-BC router 130 is configured to forward the received PTP packets towards downstream devices, including the IDSC node 110, via the Wi-Fi board 120.
  • the T-BC router 130 may be connected to the Wi-Fi board 120 via a 2.5 Gigabit Ethernet (2.5GbE or 2.5G Ethernet) interface.
  • the 2.5G Ethernet interface corresponds to a communication interface that provides data transfer rates of up to 2.5 gigabits per second (Gbps).
  • FIG. 2 illustrates one example of the system 200
  • the system may include any number of T-BC routers and may also include additional components such as bridge nodes, gateways, switches, etc. in addition to the components shown in FIG. 2.
  • additional components such as bridge nodes, gateways, switches, etc.
  • FIG. 2 may be combined, further subdivided, or omitted and additional components may be added according to particular needs.
  • FIG. 3 illustrates a block diagram 300 depicting exemplary components of the T-BC router 130 for provisioning flow of PTP traffic through the PTP un-aware nodes (i.e., the Wi-Fi board 120) in the communication network, in accordance with an example embodiment of the present disclosure.
  • the PTP un-aware nodes i.e., the Wi-Fi board 120
  • the T-BC router 130 may include one or more processors 302 coupled with a memory 304.
  • the memory 304 may store instructions which when executed by the one or more processors 302 may cause system 130 to perform functionalities related to management of the flow of the PTP traffic through the PTP un-aware nodes such as the Wi-Fi board 120.
  • the one or more processor(s) 302 may be implemented as one or more microprocessors, microcomputers, microcontrollers, edge or fog microcontrollers, digital signal processors, central processing units, logic circuitries, and/or any devices that process data based on operational instructions.
  • the memory 304 may be configured to store one or more computer-readable instructions or routines in a non-transitory computer-readable storage medium, which may be fetched and executed to create or share data packets over a network service.
  • the memory 304 may comprise any non-transitory storage device including, for example, volatile memory such as RAM, or non-volatile memory such as EPROM, flash memory, and the like.
  • the system 130 may include a plurality of interfaces 306 (hereinafter interchangeably referred to as ‘interfaces 306’).
  • the interfaces 306 may comprise a variety of interfaces, for example, interfaces for data input and output devices, referred to as VO devices, storage devices, and the like.
  • the interfaces 306 may facilitate communication of the system 130 with a plurality of platforms such as a controller hub and an FPGA or an ASIC comprising of (System on Chip) SoC components associated with the functioning of the T-BC router 130.
  • the interfaces 306 may also provide a communication pathway for one or more components of the T-BC router 130. Examples of such components include, but are not limited to, processing unit/engine(s) 310 and a database 324.
  • the system 130 may be assembled in a single board (interchangeably referred to as LAN on Motherboard (LOM)) having a predefined number of layers.
  • LOM LAN on Motherboard
  • the predefined number of layers ensure that the system 130 is not bulky and heavy.
  • the system 130 may include one or more network connections directly connected to the LOM. Instead of requiring a separate network interface card to access a local-area network, such as Ethernet, the circuits may be attached to the single board.
  • the system 130 further includes processing unit(s)/engine(s) 310 which may be implemented as a combination of hardware and programming (for example, programmable instructions) to implement one or more functionalities of the processing unit(s) 310.
  • processing unit(s)/engine(s) 310 may be implemented as a combination of hardware and programming (for example, programmable instructions) to implement one or more functionalities of the processing unit(s) 310.
  • programming for the processing unit(s) 310 may be processor-executable instructions stored on a non-transitory machine-readable storage medium and the hardware for the processing unit 310(s) may comprise a processing resource (for example, one or more processors), to execute such instructions.
  • the machine-readable storage medium may store instructions that, when executed by the processing resource, implement the processing unit(s) 310.
  • the system 130 may include the machine-readable storage medium storing the instructions and the processing resource to execute the instructions, or the machine-readable storage medium may be separate but accessible to the processing resource.
  • the processing units(s) 310 may be implemented by electronic circuitry.
  • the management controller 312 may be configured to support communications over any suitable wired or wireless connection(s) and manage communications with the backhaul network 140 via one or more wired backhaul links and with the combo cell. For example, the management controller 312 may manage the transfer of the PTP packets between the backhaul network 140 and the combo cell.
  • the network controller 314 may be configured to enable the system 300 to communicate with various entities in the communication network (such as backhaul network 140, the combo cell (IDSC node 110 and the Wi-Fi board 120), the T-TC 106, and in some scenarios other switches, bridges, or gateways).
  • Examples of the network controller 314 may include, but are not limited to, a network interface such as an Ethernet card, a communication port, and/or, and a local buffer circuit.
  • the clock synchronization module 316 may support Boundary clock (BC) with synchronization blocks, such as but not limited to, one or more PTP engines.
  • BC Boundary clock
  • the BC implements a local PTP clock which can be synchronized to a master on one port and act as a master on other ports. Since the BC is a full PTP clock implementation, both the time and frequency may be simultaneously updated to the local PTP clocks on a MAC layer.
  • the database 324 may be configured to store the clock synchronization data, and may correspond, but not limited to, a time-series database, a relational database, or a network file system capable of storing clock synchronization information related to the clock accuracy, the clock offset, the clock source identity, the synchronization messages, and the GM PTP clock 104.
  • the other modules 322 may include software modules or software using which the system 300 may be accessed through communication networks such as the Internet, Intranet, Local Area Network (LAN), Wide LAN (WLAN), and Storage Area Network (SAN) or a combination thereof.
  • the system 300 may be accessed using the software modules via an external port.
  • FIG. 4 illustrates a flowchart depicting a method 400 for managing the flow of PTP packets through the PTP un-aware nodes (i.e., the Wi-Fi board 120) in the communication network, in accordance with an embodiment of the present disclosure.
  • the method 400 comprises a series of operation steps indicated by blocks 402 through 408.
  • the method 400 starts at block 402.
  • Example blocks 402 to 412 of the method 400 are performed by one or more components of the systems 200 and 130 as disclosed in FIGS. 2 and 3, for managing the flow of PTP packets through the PTP un-aware nodes.
  • the method 400 may include additional steps, fewer steps or steps in different order than those depicted in FIG. 4. In other embodiments, the steps 402 through 412 may be combined or may be performed in parallel.
  • the T-BC router 130 using the management controller 312, establishes the PTP session between the T-BC router 130 and the combo cell based on the forwardable multicast MAC address configured at the combo cell.
  • the T-BC router 130 uses the management controller 312, assigns a priority level for each of the PTP packets based on one or more network traffic classification parameters.
  • the management controller 312 may tag each PTP packet with a Priority Code Point (PCP) value to ensure low latency and minimal jitter during transmission.
  • PCP Priority Code Point
  • the boundary clock router (T-BC) can classify the PTP packets based on the tagged PCP values and prioritize the transmission of the PTP packets in order of the assigned priority level.
  • the PCP is commonly used in networking and Quality of Service (QoS) mechanisms to prioritize network traffic across the communication network.
  • QoS Quality of Service
  • the PCP value may be a field present in a Virtual Local Area Network (VLAN) tag of an Ethernet frame.
  • the management controller 312 may dynamically adjust priority levels by evaluating real-time network performance metric associated with transmission delay, jitter, or congestion conditions.
  • the T-BC router 130 schedules the transmission of the received PTP packets to the IDSC node 110 via the Wi-Fi board based on the assigned priority level.
  • the T-BC router 130 using the network controller 314, transmits the PTP packets received from the backhaul network 140 to the combo cell using the established PTP session in accordance with the scheduled transmission.
  • the T-BC router 130 transmits the received PTP packets to the Wi-Fi board 120 and the Wi-Fi board 120 forwards the PTP packets received from the T-BC router 130 to the IDSC node 110. The transmission is performed in order of the assigned priority level of the PTP packets.
  • the one or more embodiments disclosed herein facilitates delivery of a PTP clock to the IDSC node 110 while leveraging the benefits of the Wi-Fi board 120 by turning the Wi-Fi board 120 and the IDSC node into the combo small cell.
  • QoS Quality of Service
  • TLVs Type-Length- Values
  • these computer program instructions may also be stored in one or more computer- readable memory or memory devices (for example, the memory 304) that can direct a computer processor or other programmable processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory or memory devices produce an article of manufacture including instruction means which implement the function specified in the block(s) of the flowchart(s).
  • computer program instructions refer to one or more instructions that can be executed by the one or more processors (for example, the processor 302) to perform one or more functions as described herein.
  • the instructions may also be stored remotely such as on a server, or all or a portion of the instructions can be stored locally and remotely.
  • T-TC Telecom Transparent Clock
  • ISC Indoor Small Cell
  • T-BCs Telecom Boundary clocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un système et un procédé (400) de gestion de transmission de paquets de protocole temporel de précision (PTP) dans un réseau de communication. Le procédé consiste à recevoir (402), au niveau d'un routeur d'horloge de limite, les paquets PTP en provenance d'un réseau de raccordement. En outre, une adresse de contrôle d'accès au support (MAC) de multidiffusion transférable est configurée (404) au niveau d'une cellule combinée et du routeur d'horloge de limite. En outre, le procédé comprend l'établissement (406) d'une session PTP entre le routeur d'horloge de limite et la cellule combinée sur la base de l'adresse MAC de multidiffusion transférable configurée au niveau de la cellule combinée. Ensuite, les paquets PTP reçus sont transmis à la cellule combinée en utilisant la session PTP établie.
PCT/IN2025/050526 2024-03-30 2025-03-29 Système et procédé de gestion de transmission de paquets ptp dans un réseau de communication Pending WO2025210673A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202421026715 2024-03-30
IN202421026715 2024-03-30

Publications (1)

Publication Number Publication Date
WO2025210673A1 true WO2025210673A1 (fr) 2025-10-09

Family

ID=97266824

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2025/050526 Pending WO2025210673A1 (fr) 2024-03-30 2025-03-29 Système et procédé de gestion de transmission de paquets ptp dans un réseau de communication

Country Status (1)

Country Link
WO (1) WO2025210673A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012107303A1 (fr) * 2011-02-10 2012-08-16 Alcatel Lucent Élément de réseau pour réseau à commutation de paquets
US20130215889A1 (en) * 2012-02-22 2013-08-22 Qun Zheng Precision time protocol offloading in a ptp boundary clock

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012107303A1 (fr) * 2011-02-10 2012-08-16 Alcatel Lucent Élément de réseau pour réseau à commutation de paquets
US20130215889A1 (en) * 2012-02-22 2013-08-22 Qun Zheng Precision time protocol offloading in a ptp boundary clock

Similar Documents

Publication Publication Date Title
US10856058B2 (en) Switching data signals of at least two types for transmission over a transport network providing both backhaul and fronthaul (Xhaul) connectivity
EP3925096B1 (fr) Prise en charge de système 5g pour la gestion de pont de tsn virtuel, le mappage de qos et la planification de qbv de tsn
TWI735052B (zh) 處理精確時序協定框之裝置及方法
EP2537294B1 (fr) Transmission en multidiffusion à débit variable pour distribution d'horloge dans des réseaux par paquets
US20190191398A1 (en) Synchronisation of Wireless Base Stations
KR102848798B1 (ko) 이동통신 네트워크에서 시각 동기 네트워크의 설정을 지원하는 방법 및 장치
US9577774B2 (en) Time synchronization method and system
US9154292B2 (en) Communication apparatus, communication system, and time synchronization method
CN101547083B (zh) 时间同步装置、时间同步系统和时间同步方法
CN107078958A (zh) 用于分组交换网中低抖动通信的系统、设备和方法
US11683150B2 (en) Methods, apparatus and computer-readable media for synchronization over an optical network
CN101741853A (zh) 时钟时间同步的方法、线卡单板和网络设备
US20240323088A1 (en) System and method for time-sensitive network (tsn) implementation of network slicing
WO2015131350A1 (fr) Procédé et dispositif de synchronisation d'horloge, et système de communication
CN105281885A (zh) 用于网络设备的时间同步方法、装置及时间同步服务器
Maletić et al. A survey on the current state of time-sensitive networks standardization
Rost et al. 5G plug-and-produce
WO2025210673A1 (fr) Système et procédé de gestion de transmission de paquets ptp dans un réseau de communication
CN105356990A (zh) 时间同步方法
CN115473602B (zh) 基于tsn的星间和星内一体化通信的时间同步方法
Ilišević et al. Synchronization in mobile backhaul using hybrid microwave links
Lee et al. NetFPGA based IEEE 1588 module for time-synchronized software-defined networking
Muslim et al. Simulating time sensitive networks: Overview and open challenges
CN117675066A (zh) 一种时间同步方法及装置、通信设备
Wang et al. SDN-based Routing Application for Expansion of Electric Power Communication Networks

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: 25782229

Country of ref document: EP

Kind code of ref document: A1