Patent ID: 9369239
Filing Date: 2016-06-14
CPC Classification: H04L

Claim Text:
1. A method of receiving control information, which is received by a user equipment in a wireless communication system, comprising the steps of: transmitting uplink data to an eNode B via a physical uplink shared channel; and receiving a downlink control information (DCI) format related to an uplink grant; wherein if a new data indicator (NDI) of the DCI format is set to a first one of two values, the user equipment considers the DCI format as a reception confirmation response of the uplink data, wherein the NDI set to the first value indicates that the DCI format is configured to provide the reception confirmation response of the uplink data, and the NDI set to the second value indicates that the DCI format is configured for semi-persistent scheduling (SPS) active/release, and wherein if the NDI is set to the first value, the user equipment determines whether the reception confirmation response of the uplink data is ACK information or NACK information according to values of one or more fields of the DCI format, without receiving a physical HARQ (hybrid automatic retransmit request) indicator channel from the eNode B.