8Tx Codebook

Viewing 3 posts - 1 through 3 (of 3 total)
  • Author
    Posts
  • #7721
    yang
    Participant

    Hi Dr.Schwarz,

    I found there is a file “LTE_common_gen_8TX_codebook”, which is called by function “LTE_common_get_precoding_matrix”, to generate codebook for 8 Tx.

    In “LTE_common_get_precoding_matrix,” what is the parameter “PMI_WB”? Is it different from “codebook_index”?

    Thank you!

    #7722
    Stefan Schwarz
    Participant

    Dear Yang,

    PMI_WB stands for wideband precoding matrix indicator. It is essentially the sam as the codebook_index. For 8 antennas, the codebook is indexed by two indices the subband PMI and the wideband PMI.

    Regards
    Stefan.

    #7732
    yang
    Participant

    Hi Dr.Schwarz,

    Thanks for your reply. My simulator is “Vienna LTE Simulators LTE-A Link Level Simulator, v1.3.” However, it seems that PMI_WB is not implemented in “ZFMUMIMO.m” because PMI_WB always be 0 in “ZFMUMIMO.m”.

    Have you implemented “PMI_WB” in the new version simulator?

    Thank you.

Viewing 3 posts - 1 through 3 (of 3 total)
  • You must be logged in to reply to this topic.