Methods and arrangements for supporting retransmission

摘要

The herein suggested technology gives principles for how HARQ-feedback, or corresponding, can be predicted using distributed data from scheduling decisions and optionally also from radio measurements. This data can be sent between base stations after the finished scheduling, and does not require a backhaul with very low latency. The predicted HARQ feedback can then be used for scheduling a retransmission or new transmission sooner than the actual HARQ feedback is received.

主权项

1. A method performed by a network node A for supporting retransmission in a wireless communication system comprising a user equipment (UE) which is scheduled, by a base station (BS) C for communication in a radio resource R, said method comprising:
receiving information on one or more scheduling decisions associated with a scheduled communication associated with the radio resource R from at least one BS; prior to transmission of the scheduled communication, estimating an interference to the scheduled communication based on the information on the one or more scheduling decisions; prior to transmission of the scheduled communication, predicting whether a retransmission of the scheduled communication will be required, based on the estimated interference estimated based on the information and a predetermined criterion.