7.1.5B Up to 8 layer transmission scheme

36.2133GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Physical layer proceduresRelease 17TS

For the up to 8 layer transmission scheme of the PDSCH, the UE may assume that an eNB transmission on the PDSCH would be performed with up to 8 transmission layers on antenna ports 7 – 14 as defined in Clause 6.3.4.4 of [3].

If the UE is configured with higher layer parameter dmrs-tableAlt, and in case of dual layer transmission scheme on antenna portsor corresponding to two codewords values 2-5 in Table 5.3.3.1.5C-2 [4] is used, the UE cannot assume that the other antenna ports in the set is not associated with transmission of PDSCH to another UE.