Patent ID: 11863329
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. The method of claim 9, wherein the method further comprises, for each of the received transmissions:
de-mapping rank indicator (RI) data for the transmission from the same SC-FDMA symbol to which the HARQ ACK/NACK data is mapped, but from post-despreading symbols that correspond to that same SC-FDMA symbol but that are as far as possible from the DMRS closest in time to the user data of the transmission; or
if two or more SC-FDMA symbols carry user data, de-mapping rank indicator (RI) data for the transmission from an SC-FDMA symbol that carries user data and that is immediately adjacent in time to the SC-FDMA symbol to which the HARQ ACK/NACK data is mapped, and from post-despreading symbols that correspond to that adjacent SC-FDMA symbol and that are as close as possible to the DMRS closest in time to the user data of the transmission; or
de-mapping rank indicator (RI) data for the transmission from the same SC-FDMA symbol to which the HARQ ACK/NACK data is mapped, and from post-despreading symbols that as close as possible to the post-despreading symbols to which the HARQ ACK/NACK data is mapped, given a predetermined maximum number of post-despreading symbols allocated to HARQ ACK/NACK data.