Patent ID: 9287926
Filing Date: 2016-03-15
CPC Classification: H04B

Claim Text:
1. A method for receiving a message transmitted on one of a plurality of channels of a hop sequence of a multi-hop communication system, each channel having an associated frequency, the method comprising the steps of: scanning the plurality of channels in the hop sequence; determining for each of the scanned channels a value indicative of signal strength on the channel; tuning a receiver to a first channel of the scanned channels, the first channel having a signal strength value that satisfies a threshold; while tuned to the first channel, evaluating the first channel in an attempt to detect a preamble of the message on that first channel; if the preamble is detected on the first channel, tuning the receiver to a second channel in the hop sequence and evaluating the second channel in an attempt to detect the preamble on that second channel; if no preamble is detected on the second channel, tuning the receiver back to the first channel and receiving a remainder, which includes a start frame delimiter (SFD), of the message on that first channel; and if the preamble is detected on the second channel, then maintaining the receiver tuned to the second channel and receiving the remainder of the message on that second channel.