Apple inc. (20250023685). METHOD FOR TRACKING REFERENCE SIGNAL (TRS) ENHANCEMENT
METHOD FOR TRACKING REFERENCE SIGNAL (TRS) ENHANCEMENT
Organization Name
Inventor(s)
Haitong Sun of Cupertino CA US
Weidong Yang of San Diego CA US
METHOD FOR TRACKING REFERENCE SIGNAL (TRS) ENHANCEMENT
This abstract first appeared for US patent application 20250023685 titled 'METHOD FOR TRACKING REFERENCE SIGNAL (TRS) ENHANCEMENT
Original Abstract Submitted
some embodiments include an apparatus, method, and computer program product for tracking reference signal (trs) support of high speed use cases of 5g communications in a single frequency network (sfn), where a user equipment (ue) can measure a doppler offset of a combined signal from two or more transmission reception points (trps) of the 5g communications system. a 5g node b (gnb) node can transmit a periodic, semi-persistent (sp), or aperiodic trs with high measurement density that the ue uses to measure a doppler offset of a combined signal. for example, the gnb can: trigger the aperiodic trs based on a downlink assignment; and/or use lower layer signaling to arrange to transmit a semi-persistent trs or a periodic trs with a reduced periodicity. in some embodiments, the gnb can measure the doppler offset based on an uplink signal, and transmit a trs based on a pre-compensated doppler frequency.