Timing pilot generation for highly-spectrally-efficient communications

摘要

Methods and systems are provided for timing synchronization for reception of highly-spectrally efficient communications. An example method may include, mapping, in a transmitter, a plurality of transmit bits to a plurality of symbols at a symbol rate that is based on an oscillator signal. The plurality of symbols may be processed via a filter. The processing may result in an inter-symbol correlated (ISC) signal. The oscillator signal may be frequency divided to generate one or more pilot signals having a frequency that is a sub-harmonic of a frequency of the oscillator signal. The pilot signal may be injected into the ISC signal. The injecting may result in an ISC signal with timing carrier. The ISC signal with timing carrier may be transmitted. Gain of the one or more pilot signals may be adjusted based on a spectral mask value associated with the transmitting.

主权项

1. A receiver comprising:
front-end circuitry operable to receive a signal via a channel; performance measurement circuitry operable to measure a performance indicator for said received signal; and timing recovery circuitry operable to:
determine, based on said measured performance indicator, a divider ratio used for generation of a timing pilot in said received signal; andprocess said received signal using said determined divider ratio.