Method and apparatus for transmitting an uplink or downlink grant in a wireless communication system that supports uplink and downlink MIMO schemes

摘要

The present invention relates to a method for transmitting an uplink or downlink grant in a wireless communication system that supports uplink and downlink multiple input multiple output (MIMO) schemes. The method comprises: determining a downlink control information (DCI) format for an uplink or downlink grant to generate control information: attaching a cyclic redundancy check (CRC) for detecting an error in the created control information; and channel-coding the CRC-attached control information, wherein the control information comprises a bit flag for distinguishing whether the grant is an uplink grant or a downlink grant.

主权项

1. A method for transmitting an uplink (UL) or downlink (DL) grant in a wireless communication system supporting UL and DL multiple input multiple output (MIMO), the method comprising:
generating control information by determining a downlink control information (DCI) format for the UL or DL grant; attaching a cyclic redundancy check (CRC) for detecting an error to the generated control information; channel-coding the CRC-attached control information; and scrambling the coded control information using a scrambling code, wherein the scrambling code is UL grant-specifically or DL grant-specifically determined based on an initial value cint in accordance with an Equation,
cint=213·ngrant+└nS/2┘29+NIDcell, and   wherein ns represents a slot number within a radio frame, NIDcell represents a physical layer cell identity, and ngrant represents a parameter indicating the UL or DL grant.