FLEXIBLE MULTIPLEXING AND FEEDBACK FOR VARIABLE TRANSMISSION TIME INTERVALS

摘要

Methods, systems, and devices for wireless communication are described. A base station may employ a multiplexing configuration based on latency and efficiency considerations. The base station may transmit a resource grant, a signal indicating the length of a downlink (DL) transmission time interval (TTI), and a signal indicating the length of a subsequent uplink (UL) TTI to one or more user equipment (UEs). The base station may dynamically select a new multiplexing configuration by, for example, setting the length of an UL TTI to zero or assigning multiple UEs resources in the same DL TTI. Latency may also be reduced by employing block feedback, such as block hybrid automatic repeat request (HARQ) feedback. A UE may determine and transmit HARQ feedback for each transport block (TB) of a set of TBs, which may be based on a time duration of a downlink TTI.

主权项

1. A method of wireless communication comprising:
identifying a downlink transmission time interval (TTI) of a time-division duplex (TDD) configured carrier; receiving an indication of a duration of the downlink TTI during the downlink TTI; receiving an indication of a duration of an uplink TTI that follows the downlink TTI, wherein the indication of the duration of the uplink TTI is received during the downlink TTI; and communicating based at least in part on the indication of the duration of the downlink TTI and the indication of the duration of the uplink TTI.