Patent ID: 9722845
Date: 2017-08-01
CPC Classifications: H04B,H04L,H04W

Claim:
1. A Bluetooth Low Energy (BLE) device, comprising: a demodulator configured to translate in-phase and quadrature components of a received BLE signal into a differential phase signal; an estimator configured to estimate a frequency offset of the differential phase signal, and configured to estimate a modulation index of the differential phase signal; and a detector configured to detect information in the differential phase signal corrected by the estimated frequency offset using the estimated modulation index, wherein where dΘ k is the differential phase signal, f off is the frequency offset, η is the modulation index, b l is the data sequence, g(t) is the Gaussian pulse, k is an index, and w k is the noise, and where b m =1,m=1 . . . M, and where b n =1,n=1 . . . N, and