Method and apparatus for transmitting and receiving data multiple times in consecutive subframes

A method for receiving data by a receiving device, the method comprising:

• receiving, by the receiving device, a data channel repeatedly in N consecutive subframes, where N is a positive integer greater than 1;
• and
• decoding, by the receiving device, the repeatedly received data channel based on one or more redundancy versions (RVs) applied to the data channel and one or more scrambling sequences applied to the data channel,
• wherein a RV for the data channel is changed once every R consecutive subframes in the N consecutive subframes, where R is a predefined positive integer greater than 1 and less than N, and
• wherein a scrambling sequence for the data channel is applied per subframe to the data channel, and stays the same over a block of R consecutive subframes for which the RV for the data channel stays the same.

A transmitting device for transmitting data, the transmitting device comprising:

• a radio frequency (RF) unit;
• and
• a processor configured to:
• apply a redundancy version (RV) to a data channel;
• apply a scrambling sequence to the data channel;
• and
• control the RF unit to transmit the data channel,
• wherein the data channel is transmitted repeatedly in N consecutive subframes, where N is a positive integer greater than 1,
• wherein the RV for the data is changed once every R consecutive subframes in the N consecutive subframes, where R is a predefined positive integer greater than 1 and less than N, and
• wherein the scrambling sequence for the data channel is applied per subframe to the data, and stays the same over a block of R consecutive subframes for which the RV for the data stays the same.

A receiving device for receiving data, the receiving device comprising:

• a radio frequency (RF) unit;
• and
• a processor configured to:
• control the RF unit to receive a data channel repeatedly in N consecutive subframes, where N is a positive integer greater than 1, and
• decode the repeatedly received data channel based on one or more redundancy versions (RVs) applied to the data channel and one or more scrambling sequences applied to the data channel,
• wherein a RV for the data channel is changed once every R consecutive subframes in the N consecutive subframes, where R is a predefined positive integer greater than 1 and less than N, and
• wherein a scrambling sequence for the channel is applied per subframe to the channel, and stays the same over a block of R consecutive subframes for which the RV for the data stays the same.