PRECODING CODEBOOK BITMAPS IN TELECOMMUNICATIONS

摘要

A base station node (28) communicates over a radio interface (32) with a wireless terminal (30). The base station node (28) comprises a controller (60) which, upon basis of channel feedback received from the wireless terminal, is configured to make a precoding codebook bitmap decision (3-3) regarding a precoding codebook bitmap affecting transmissions between the base station(28) and the wireless terminal (30). The base station(28) is further configured to communicate the precoding codebook bitmap decision so that the precoding codebook bitmap decision may be implemented by the wireless terminal (30). In example embodiments and modes the base station(28) sends the precoding codebook bitmap decision using a bitmap decision signal to a radio network controller (26).