Patent ID: 11025317

Abstract:
An electronic device, a method, and computer readable media for adapting a hierarchical codebook. The electronic device includes a memory for storing a hierarchical codebook and a processor operably connected to the memory, which is configured to determine usage probabilities for codewords in the hierarchical codebook. The codewords are represented by nodes assigned to one of a plurality of tiers of the hierarchical codebook based on a tier identifier. The processor is also configured to change a structure of the hierarchical codebook based on the usage probabilities so that nodes associated with codewords having relatively higher usage probabilities are located closer to a root node than nodes associated with codewords having relatively lower usage probabilities, and select a codeword from the hierarchical codebook for use in wireless communication. The codeword is selected by a codeword selection procedure performed on the changed structure of the hierarchical codebook.