A sensor may determine a sampling pattern based on a group of synchronization signals received by the sensor. The sampling pattern may identify an expected time for receiving an upcoming synchronization signal. The sensor may trigger, based on the sampling pattern, a performance of a sensor operation associated with the upcoming synchronization signal. The performance of the sensor operation may be triggered before the upcoming synchronization signal is received.

A system on a chip (SOC) is configured to support multiple time domains within a time-sensitive networking (TSN) environment. TSN extends Ethernet networks to support a deterministic and high-availability communication on Layer 2 (data link layer of open system interconnect OSI model) for time coordinated capabilities such as industrial automation and control applications. Processors in a system may have an application time domain separate from the communication time domain. In addition, each type time domain may also have multiple potential time masters to drive synchronization for fault tolerance. The SoC supports multiple time domains driven by different time masters and graceful time master switching. Timing masters may be switched at run-time in case of a failure in the system. Software drives the SoC to establish communication paths through a sync router to facilitate communication between time providers and time consumers. Multiple time sources are supported.

A sensor may determine a sampling pattern based on a group of synchronization signals received by the sensor. The sampling pattern may identify an expected time for receiving an upcoming synchronization signal. The sensor may trigger, based on the sampling pattern, a performance of a sensor operation associated with the upcoming synchronization signal. The performance of the sensor operation may be triggered before the upcoming synchronization signal is received.

Provided herein are systems and methods of determining times of events. A server may receive a message from a client in response to an event. The message may identify a first time corresponding to a generation of the event and a second time corresponding to transmission of the message. The first time and the second time may be determined using a first clock of the client. The server may identify, using a second clock of the server, a third time at which the message is received at the server. The server may determine a fourth time based at least on the first time, the second time, and the third time. The fourth time may identify a time according to the second clock at which the event was generated at the client.

In one embodiment, a method comprises receiving, by a network device, one or more advertisement messages comprising timing information describing a quality of a network clock that is originated by a master clock device at a root of a directed acyclic graph (DAG); the network device executing an objective function for the DAG providing an optimized loopless time topology for the network clock, synchronized to the master clock device, based on the timing information; and the network device attaching to a parent device in the DAG based on the objective function, for optimized generation of the network clock by the network device.

A coordinated timing network is dynamically split into a plurality of coordinated timing networks. This split occurs without taking down any of the servers. Each coordinated timing network has its own coordinated timing network identifier (CTN ID), and its own primary time server. Optionally, each coordinated timing network includes a backup time server and an arbiter.

A device includes a clock generator configured to generate a root clock signal based on an input clock signal and a clock generator divider integer setting. The device also includes a first component coupled to the clock generator and configured to generate a first component clock signal based on the root clock signal and a first component divider integer setting. The device also includes a second component coupled to the clock generator and configured to generate a second component clock signal based on the root clock signal and a second component divider integer setting. The device also includes sync circuitry coupled to each of the clock generator, the first component, and the second component, wherein the sync circuitry is configured to perform synchronized adjustments to the root clock signal, the first component clock signal, and the second component clock signal.

A method for determining a clock synchronization path, and a device, where the method includes determining a first clock synchronization path from a clock injection node of the first network to the first network element based on a request of the first network element and the clock synchronization topology of the first network. A clock synchronization topology is automatically updated based on clock synchronization capability information of a network element, and a clock synchronization path is determined to reduce costs of deploying a clock synchronization path.

The present document discloses a synchronization method, herein the method includes a controller determining synchronization link topology information according to physical link topology information of the synchronous network and synchronization information of a synchronous node in the synchronous network; the controller generating a synchronization rule of the synchronous node according to the synchronization link topology information; and the controller transmitting the synchronization rule and/or a request message to the synchronous node in the synchronous network according to the synchronization link topology information. The present document further discloses a controller, a synchronous node, a synchronous network, and a storage medium.

A coordinated timing network is dynamically split into a plurality of coordinated timing networks. This split occurs without taking down any of the servers. Each coordinated timing network has its own coordinated timing network identifier (CTN ID), and its own primary time server. Optionally, each coordinated timing network includes a backup time server and an arbiter.