METHOD AND SYSTEM FOR PHYSICAL DOWNLINK CONTROL CHANNEL MULTIPLEXING

摘要

Enhanced physical downlink control channel are multiplexed with physical downlink data channel in frequency division multiplexing (FDM), or in frequency division multiplexing (FDM)+time division multiplexing (TDM). FDM mode applies to users that have only UL grants in that subframe. UL grants of different users are cross-interleaved and transmitted over the entire physical resource blocks (both slots) in FDM. Frequency resources for cross-interleaved UL grants are distributed. TDM+FDM applies to users that have both DL and UL grants, or have only DL grant in that subframe. DL/UL grant (maybe mixed) is transmitted only in the first slot of physical resource blocks in TDM+FDM, where the second slots in those resource blocks can be used for those users' downlink data transmission.

主权项

1. A method of multiplexing physical downlink control channel and physical downlink data channel in two cases comprising:
1) to cross-interleave the scheduling grants for uplink data transmissions (UL grants) of different users, and map them to the entire physical resource blocks in a first and a second slots where no physical downlink data channel is allowed to be transmitted wherein the resource multiplexing between downlink control channel and physical downlink data channel is frequency division multiplexing (FDM) in this case; 2) to mix the scheduling grants for downlink data transmission (DL grant) and for uplink data transmission (UL grant, if it is present) of a user, and map them to a first slot of the physical resource blocks where a second slot can be used for this user's downlink data transmission wherein the resource multiplexing between downlink control channel and physical downlink data channel is frequency division multiplexing (FDM)+time division multiplexing (TDM) in this case.