CODE BLOCK CLUSTER LEVEL HARQ

摘要

Methods, systems, and devices are described for wireless communication. Wireless devices may exchange data using Medium Access Control (MAC) layer units known as transport blocks. The transport blocks may be partitioned into code block clusters (CBCs), each of which may include one or more code blocks. A receiving device may attempt to decode a transport block and send acknowledgement (ACK) and negative-acknowledgment (NACK) information to the transmitting device based on the whether each CBC was successfully decoded. The transmitting device may retransmit a redundancy version of a CBC for each NACK received. The transmitting device may group CBCs in segments of a transport block according to redundancy version. In some cases, the transmitting device may send a control message in a control channel which indicates the composition of the transport block.

主权项

1. A method of communication at a wireless device, comprising:
identifying a redundancy version of a first code block cluster (CBC) for transmission during a transmission time interval (TTI); identifying a version of a second CBC for transmission during the TTI; and transmitting a transport block comprising the redundancy version of the first CBC and the version of the second CBC during the TTI.