Downstream channel locking method and device, and cable modem on-line method and device
A modem and channel technology, which is applied in the field of communication, can solve problems such as long time-consuming frequency locking, affecting CM online speed, and inability to establish communication with the front-end CMTS server, so as to reduce wasted time and shorten the online process.
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
[0025] Please refer to the attached Figure 1a , is a schematic flow chart of a downlink channel locking method provided by an embodiment of the present invention, mainly including steps S101 and S102:
[0026] S101. Determine whether the signal corresponding to the current frequency to be scanned is valid.
[0027] When scanning a frequency spectrum containing several channels, if a complete frequency locking process is performed every time a channel is scanned, that is, tuning, demodulation, decoding, ...
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