US 11,956,048 B2
Systems and methods for measurement period and accuracy for beam reporting based on L1-RSRP
Hua Li, Beijing (CN); Jie Cui, Santa Clara, CA (US); Yang Tang, Santa Clara, CA (US); Qiming Li, Beijing (CN); Manasa Raghavan, Sunnyale, CA (US); and Zhibin Yu, Unterhaching (DE)
Assigned to APPLE INC., Cupertino, CA (US)
Appl. No. 17/277,133
Filed by APPLE INC., Cupertino, CA (US)
PCT Filed Sep. 26, 2019, PCT No. PCT/US2019/053210
§ 371(c)(1), (2) Date Mar. 17, 2021,
PCT Pub. No. WO2020/069164, PCT Pub. Date Apr. 2, 2020.
Claims priority of provisional application 62/738,268, filed on Sep. 28, 2018.
Prior Publication US 2022/0038165 A1, Feb. 3, 2022
Int. Cl. H04W 56/00 (2009.01); H04B 7/06 (2006.01); H04B 17/318 (2015.01)
CPC H04B 7/0695 (2013.01) [H04B 7/0626 (2013.01); H04B 17/318 (2015.01); H04W 56/001 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An apparatus a user equipment (UE), the apparatus comprising:
a memory interface to send or receive, to or from a memory device, data for a report to send to a g Node B (gNB) in a wireless network;
measurement circuitry to measure a layer one reference signal received power (L1-RSRP) for a plurality of resources corresponding to different transmit (Tx) beams configured for measurement by the UE; and
a baseband processor to:
determine a selected Tx beam of the different Tx beams based on measured L1-RSRP for the plurality of resources, wherein an L1-RSRP value corresponding to the selected Tx beam is measured with a predetermined L1-RSRP accuracy to provide that the selected Tx beam is within a number of largest L1-RSRP values of the measured L1-RSRP of the different Tx beams; and
generate the report including an indication of the selected Tx beam and the L1-RSRP value measured with the predetermined L1-RSRP accuracy,
wherein the plurality of resources is configured as channel state information reference signal (CSI-RS) resources corresponding to the different Tx beams, and wherein the predetermined L1-RSRP accuracy for the CSI-RS transmitted with a density of 3 and a bandwidth of 48 physical resource blocks (PRBs) is ±4.5 dB when the corresponding SNR is at least −3 dB.