Method for transmitting and receiving data channel and LC device

A method for transmitting a physical uplink shared channel (PUSCH), the method performed by a wireless device and comprising:

• receiving, by the wireless device configured for a coverage enhancement, a downlink control channel, which is repeated over a plurality of downlink subframes;
• determining a last subframe among the plurality of downlink subframes where the downlink control channel is repeated;
• determining a start subframe to transmit the PUSCH which is repeated over a plurality of uplink subframes, based on the last subframe,
• wherein the transmission of the PUSCH starts from a kth valid subframe after a subframe n,
• where the subframe n is the last subframe, on which the repetition of the downlink control channel is completed, and
• where the k is equal to or greater than 4 and each valid subframe is preconfigured,
• wherein when a number of the repetitions is N, the N is counted only using valid subframes.

A wireless device for receiving a physical downlink shared channel (PDSCH), comprising:

• a transceiver configured for a coverage enhancement and to receive a downlink control channel, which is repeated over a first plurality of downlink subframes;
• and
• a processor configured to:
• determine a last subframe among the first plurality of downlink subframes where the downlink control channel is repeated, and
• determine a start subframe to receive the PDSCH which is repeated over a second plurality of downlink subframes, based on the last subframe,
• wherein the reception of the PDSCH starts from a kth valid subframe after a subframe n,
• where the subframe n is the last subframe, on which the repetition of the downlink control channel is completed,
• where the k is equal to or greater than 2 and each valid subframe is pre-configured, and
• consider that any subframe on which a system information block (SIB) is received is not used to receive the PDSCH including downlink data other than the SIB.

A wireless device for transmitting a physical uplink shared channel (PUSCH), comprising:

• a transceiver configured for a coverage enhancement and to receive repetitions of a downlink control channel, which is repeated over a plurality of downlink subframes;
• and
• a processor configured to:
• determine a last subframe among the plurality of downlink subframes where the downlink control channel is repeated, and
• determine a start subframe to transmit the PUSCH which is repeated over a plurality of uplink subframes, based on the last subframe,
• wherein the transmission of the PUSCH starts from a kth valid subframe after a subframe n,
• where the subframe n is the last subframe, on which the repetition of the downlink control channel is completed, and
• where the k is equal to or greater than 4 and the each valid subframe is preconfigured,
• wherein when a number of the repetitions is N, the N is counted only using valid subframes.