Method for detecting control information in wireless communication system
AssigneeLG Electronics Inc.
InventorsJae Hoon Chung, So Yeon Kim, Jong Min Kim, Doo Hyun Sung
Life of this patent
Estimating the term…
Abstract
A method for detecting control information in a wireless communication system is provided. The method includes checking a cyclic redundancy check (CRC) error by monitoring control channels, determining whether a value of an error check field is equal to a specific value, and, if the value of the error check field is equal to a specific value, detecting the control information on the control channel.
Claims14
A method for detecting control information in a wireless communication system using a downlink slot comprising a plurality of orthogonal frequency-division multiplexing (OFDM) symbols, the method performed by a user equipment and comprising:
- monitoring a physical downlink control channel (PDCCH);
- obtaining downlink control information (DCI) from the PDCCH, wherein the DCI includes a Transmit Power Control (TPC) command for a Physical Uplink Shared Channel (PUSCH) and a cyclic shift for DeModulation Reference Signal (DM-RS);
- and
- determining whether to activate semi-persistent scheduling (SPS) based on the TPC command for the PUSCH and the cyclic shift for the DM-RS, wherein the SPS is activated if at least one pre-defined bit of the TPC command for the PUSCH is set to zero and at least one pre-defined bit of the cyclic shift for the DM-RS is set to zero.
A user equipment in a wireless communication system using a downlink slot comprising a plurality of orthogonal frequency-division multiplexing (OFDM) symbols, comprising:
- a radio frequency (RF) unit for transmitting and receiving a radio signal;
- and
- a processor coupled with the RF unit and configured to:
- monitor a physical downlink control channel (PDCCH);
- obtain downlink control information (DCI) from the PDCCH, wherein the DCI includes a Transmit Power Control (TPC) command for a Physical Uplink Shared Channel (PUSCH) and a cyclic shift for DeModulation Reference Signal (DM-RS);
- and
- determine whether to activate semi-persistent scheduling (SPS) based on the TPC command for the PUSCH and the cyclic shift for the DM-RS, wherein the SPS is activated if at least one pre-defined bit of the TPC command for the PUSCH is set to zero and at least one pre-defined bit of the cyclic shift for the DM-RS is set to zero.
Dependencies are inferred from the claim text.