Patent ID: 7542726
Filing Date: 2009-06-02
Classification: H04L

Abstract:
1. A method for blind detection of a transmission diversity mode in a mobile radio receiver, wherein a radio transmission from a transmission end in the transmission diversity mode is carried out with spatial diversity by two antennas, said method comprising: coherent processing of two successively received input signal data tuples {r(k);r(k+1)} and {r(k+2);r(k+3)} of a pilot sequence; and calculating a phase offset between the two successive input signal data tuples {r(k);r(k+1)} and {r(k+2);r(k+3)}, wherein the first input signal data tuple {r(k);r(k+1)} comprises two successively received complex data samples r(k) and r(k+1) relating to a sampling time k and a sampling time k+1, respectively, and wherein the second input signal data tuple {r(k+2);r(k+3)} comprises two successively received complex data samples r(k+2) and r(k+3) relating to a sampling time k+2 and a sampling time k+3, respectively.