QUALCOMM Incorporated
RATE-MATCHING AROUND CRS FOR NR-TDD

Abstract:

Rate-matching and channel estimation are disclosed for new radio (NR) user equipments (UEs). In one aspect, a method of wireless communication includes obtaining coexistence information associated with neighboring wireless operations according to a legacy radio access technology (RAT) coexisting with a new radio (NR) RAT. The coexistence information includes a number of ports associated with reference signals of the legacy RAT, a frequency pattern of the reference signals of the legacy RAT, and a subframe type of corresponding subframes of the legacy RAT with transmission segments of the NR RAT. The method also includes determining one or more reference signal occasions of the legacy RAT coinciding with a shared downlink direction communication for the NR RAT and legacy RAT. The method further includes rate-matching reception of NR downlink transmissions within the shared downlink direction communication around the one or more reference signal occasions. Other aspects are described and claimed.