Enhanced node B and methods for network assisted interference cancellation with reduced signaling

摘要

Embodiments of an enhanced node B (eNB) and methods for network-assisted interference cancellation with reduced signaling in a 3GPP LTE network are generally described herein. In some embodiments, the number of transmission options is reduced by introducing a smaller signaling codebook. In some embodiments, higher-layer feedback from the UE to the eNodeB is established to inform the eNB about certain NA-ICS capabilities of the UE. In some embodiments, the number of signaling options is reduced by providing only certain a priori information. In some embodiments, correlations in the time and/or frequency domain are exploited for reducing the signaling message. In some embodiments, differential information is signaled in the time and/or frequency domain for reducing the signaling message.

主权项

1. A method performed by an enhanced node B (eNB) in an LTE network for providing network assistance to user equipment (UE) for coordination of interference mitigation, the method comprising:
indicating a reduced number of transmission options with a smaller signaling codebook, the smaller signaling codebook having entries that are a subset of entries of a larger master codebook, the transmission options comprising configurations for a plurality of transmission modes (TMs) defined by the larger master signaling codebook, the configurations including at least modulation, transmission rank, antenna configuration, and multiplexing configurations for at least some of the TMs; and providing network-assistance (NA) interference cancellation signaling (ICS) (NA-ICS) side information to the UE as part of a NA-ICS feedback message, the side information comprising indicators of the smaller signaling codebook, wherein the UE is arranged to perform an interference cancellation technique based on the smaller signaling codebook.