Method and network device for ptp clock synchronization
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsGuoliang Gao, Liya Shao, Liang Shan
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Abstract
A method and a network device are disclosed for precision time protocol (PTP) clock synchronization. According to an embodiment, the network device determines, for a plurality of candidate PTP clock sources, noise metrics reflecting variation degrees of propagation delays on paths between the plurality of candidate PTP clock sources and the network device. The network device determines, from the plurality of candidate PTP clock sources, a target PTP clock source for clock synchronization, based on at least part of the noise metrics.
Claims27
A method performed by a network device, comprising:
- determining, for a plurality of candidate precision time protocol, PTP, clock sources, noise metrics reflecting variation degrees of propagation delays on paths between the plurality of candidate PTP clock sources and the network device;
- and
- determining, from the plurality of candidate PTP clock sources, a target PTP clock source for clock synchronization, based on at least part of the noise metrics.
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A network device comprising:
- at least one processor;
- and
- at least one memory, the at least one memory containing instructions executable by the at least one processor, whereby the network device is operative to:
- determine, for a plurality of candidate precision time protocol, PTP, clock sources, noise metrics reflecting variation degrees of propagation delays on paths between the plurality of candidate PTP clock sources and the network device;
- and
- determine, from the plurality of candidate PTP clock sources, a target PTP clock source for clock synchronization, based on at least part of the noise metrics.
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Dependencies are inferred from the claim text.