Patent ID: 8428164
Filing Date: 2013-04-23
Classification: H04J,H04L,H04W

Abstract:
1. A method for randomization of interference experienced by a shared control channel transmitted by using control channel transmission resources from a base station where said shared control channel comprises control channel elements CCE 1 -CCEn, said method comprising the steps of: grouping the control channel elements CCE determining a number of available symbol group positions of said control channel transmission resources; adding symbol groups comprising “dummy” values or zeros to the first order of control channel symbol groups so that said first order of symbol groups substantially equals said number of available symbol group positions; interleaving the first order of the control channel symbol groups resulting in a second order of said control channel symbol groups; cyclic shifting said second order; and mapping the cyclic shifted second order of control channel symbol groups to said control channel transmission symbol group positions.