Patent ID: 9198070
Filing Date: 2015-11-24
Classification: H04B,H04L,H04W

Abstract:
1. A method of determining radio link quality, the method comprising performing on user equipment (UE): determining information indicating the time-frequency blocks to be monitored by the UE in order to locate a control channel; receiving at a physical layer, from a layer higher than the physical layer, configuration information regarding resources used by a channel state information reference signal; receiving information regarding an interference measurement resource set configuration; receiving a channel state information reference signal, wherein the channel state information reference signal uses the channel state information reference signal resources; determining a synchronization condition by determining a block error rate (BLER) based on the time frequency blocks to be monitored by the UE, the received channel state information reference signal and the interference measurement resource set configuration, the synchronization condition indicating whether a downlink channel is in an out-of-synchronization (OOS) condition, and whether the downlink channel is in an in-synchronization (IS) condition; wherein the UE supports a plurality of codebook elements, the method further comprising identifying a subset of the plurality of codebooks to be used in the step of determining a synchronization condition; identifying a transmission scheme corresponding to the channel; and determining a pre-coding matrix indicator (PMI) based on the identified subset of codebooks, the time frequency blocks to be monitored by the UE, the channel state information reference resources, the transmission scheme, and the interference measurement resources; and sending the determined synchronization condition to a higher layer.