Methods and apparatuses for reception of frequency-hopping spread spectrum radio transmissions

摘要

A frequency-agile radio receiver controlled by a radio controller hops through a plurality of radio frequencies where discrete frequency-hopping spread spectrum digital transmissions may exist, where the transmitter's hopping sequence is not known, and where it is not necessary to receive every transmission of interest. The controller accumulates counters of the number of transmissions of interest it receives at each of a plurality of frequencies. It then creates a new frequency-hopping sequence consisting primarily of those frequencies whose received transmission counts exceed a certain threshold. The controller continues to tune the receiver in a hopping pattern, allocating more of the receiver's time to those frequencies where more transmissions have been received in the past. Doing so improves the likelihood that transmissions of interest will be received in the future.

主权项

1. An apparatus comprising:
processing circuitry; and a radio receiver communicably coupled to the processing circuitry; wherein the radio receiver is configured to:
tune to a frequency within a plurality of frequencies, andprovide indications of signals received on the frequency to processing circuitry;and
wherein the processing circuitry is configured to:
control the radio receiver to scan a plurality of radio frequencies to receive transmissions of interest,determine a count value for each of the scanned frequencies based on a number of transmissions of interest received on each scanned frequency within the plurality of frequencies,determine a frequency-hopping pattern based on the count value for each scanned frequency within the plurality of frequencies, andcontrol the radio receiver to scan select radio frequencies based on the frequency-hopping pattern.