Predecoding for joint processing coordinated multi-point transmission
This invention is a method of predecoding for joint processing coordinated multi-point transmission. The invention identifies for a particular transmission the cooperating point and the transmit antenna. The invention selects a code by reference to a selected one of a super-cell codebook for each combination of cooperating point and transmit antenna and a multi-cell codebook for each transmit antenna regardless of the cooperating point.
1. A method of predecoding for joint processing coordinated multi-point transmission comprising the steps of:
designing a super-cell codebook for each combination of cooperating point and transmit antenna;
designing a multi-cell codebook for each transmit antenna regardless of cooperating point;
identifying for a particular transmission the cooperating point and the transmit antenna; and
selecting a code by reference to a selected one of said super-cell codebook and said multi-cell codebook.
2. A method of predecoding for joint processing coordinated multi-point transmission comprising the steps of:
designing a super-cell codebook for each combination of cooperating point and transmit antenna;
designing a multi-cell codebook for each transmit antenna regardless of cooperating point;
identifying for a particular transmission the cooperating point and the transmit antenna;
selecting a code by reference to a selected one of said super-cell codebook and said multi-cell codebook;
calculating at least one of a Channel Quality Indicator, a Precoding Matrix Indicator and a Rank Indicator jointly for all cells upon selection of a code from the super-cell code book; and
calculating a at least one of a Channel Quality Indicator, a Precoding Matrix Indicator and a Rank Indicator separately for each cell upon selection of a code from the multi-cell code book.