Clock frequency synchronization method and communication apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsYuanda Huang, Kuo Zhang
Life of this patent
Estimating the term…
Abstract
In a method, a network device receives a combined optical signal, where the combined optical signal is obtained by coupling optical signals sent by a plurality of communication nodes. If the network device is not a master node, the network device detects whether a master label exists in the combined optical signal, where the master label indicates the master node. If it is detected that a first master label exists in the combined optical signal, where the first master label indicates a first master node, the network device synchronizes a local clock frequency with a clock frequency of the first master node.
Claims20
A method, comprising:
- receiving, by a network device, a combined optical signal, wherein the combined optical signal is obtained by coupling optical signals sent by a plurality of communication nodes;
- in response to the network device not being a master node, detecting, by the network device, whether a master label exists in the combined optical signal, wherein the master label indicates the master node;
- and
- in response to detecting that a first master label exists in the combined optical signal, synchronizing, by the network device, a local clock frequency with a clock frequency of a first master node that is indicated by the first master label.
A communication apparatus, wherein the communication apparatus comprises:
- an interface, configured to receive a combined optical signal, wherein the combined optical signal is obtained by coupling optical signals sent by a plurality of communication nodes;
- one or more processors coupled to the interface;
- and
- a non-transitory computer-readable storage medium storing a program to be executed by the one or more processors, the program including instructions to:
- in response to the communication apparatus not being a master node, detect whether a master label exists in the combined optical signal, wherein the master label indicates the master node;
- and
- in response to detecting that a first master label exists in the combined optical signal, synchronize a local clock frequency with a clock frequency of a first master node that is indicated by the first master label.
Dependencies are inferred from the claim text.