Kowert, Hood, Munyon, Rankin & Goetzel, P.C.
Power saving for channel state information reference signal reception
A base station and mobile device (UE) may coordinate transmission of reference signals and reception of corresponding channel state information (CSI) reports. If a periodic reference signal is scheduled for transmission outside the on-duration period of the UE, even if the reference signal corresponds to a periodic CSI report scheduled to be transmitted by the UE during the on-duration period, the base station may not transmit the periodic reference signal, thereby allowing the UE not to prematurely exit a low-power state. The base station may instead transmit an aperiodic reference signal at a specified point in time later than the scheduled transmission of the periodic reference signal. The UE may receive the aperiodic reference signal and either transmit the periodic CSI report or an aperiodic CSI report in response, depending on how close to the start of the on-duration period the transmission of the periodic CSI report is scheduled.
Apple Inc.
H H Y H H H H H
H04B H04W Y02D H04L H04L H04B H04W H04W
inventional inventional additional inventional inventional inventional inventional inventional
Johnson O. Junsung Haitong Yuchul Wei Dawei Wei
Sebeni Lim Sun Kim Zeng Zhang Zhang