wtru may transmit cqi feedback pmi feedback and or rank index feedback to an enb while this disclosure makes reference to pmi cqi and rank index one skilled in the art should recognize that other feedback signals may also be used a channel control element cce may be defined as j resource elements where j is an integer value and a resource element is defined as a specific sub carrier during a specific orthogonal frequency division multiplex ofdm symbol interval a fixed size uplink channel control element may be defined and used to carry uplink cqi pmi and rank information the size of the cce may depend on many factors including but not limited to the minimum size of a wtru feedback report system load quality of service qos and bandwidth for each reporting period or feedback instance a different number of cces may be used based on the aforementioned factors the number of cces used to transmit the feedback may be determined for each feedback instance and may change from one feedback instance to the next the number of cces may depend on the number of feedback bits that are going to be transmitted in any feedback instance the wtru may determine the number of cces required for any particular feedback instance pmi may be reported in different types of formats pmi may be based on the feedback mode which may be based on the uplink channel and the type of feedback that is being reported in a first pmi format a non differential pmi may be used non differential.