Abstract: A method, in a telecommunications system, for transmitting radio signals from a base station comprising at least a pair of transmission branches configured to supply output signals for respective antennae of the base station, to at least one terminal comprising at least one antenna, the method comprising splitting a signal for transmission into at least first and second components, applying a phase shift to the first component to generate a modified first component and providing the modified first component and the second component to respective power amplifiers for transmission over the antennae.

Abstract: Transport frames to be transmitted on a communication channel are formed from coded-signal frames. Each coded-signal frame comprises one or more sets of bits to be protected against transmission errors. A respective error detection code is calculated for a subset of bits, and placed in a respective transport frame along with this subset of bits. Some at least of the transport frames contain a plurality of subsets of bits, emanating from different coded-signal frames and accompanied by the corresponding error detection codes.