Methods and apparatus to support two codewords for ul mimo

Abstract

Apparatus and methods are provided for selectively using multiple codewords for uplink (UL) multiple-input multiple-output (MIMO) communication. A user equipment (UE) is configured to use at least one of a first codeword and a second codeword for UL communication with a base station. The UE determines whether to enable or disable the second codeword for a physical uplink shared channel (PUSCH) transmission. In response to determining to disable the second codeword, the UE transmits the PUSCH transmission including the first codeword to the base station. In response to determining to enable the second codeword, the UE transmits the PUSCH transmission including the first codeword and the second codeword to the base station.

Dependencies are inferred from the claim text.