	US 12,464,393 B2
	Intra-frequency measurement enhancement in new radio high speed train
Jie Cui, San Jose, CA (US); Qiming Li, Beijing (CN); Manasa Raghavan, Sunnyvale, CA (US); Huaning Niu, San Jose, CA (US); Yang Tang, San Jose, CA (US); Dawei Zhang, Saratoga, CA (US); and Hong He, San Jose, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/439,598
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Oct. 22, 2020, PCT No. PCT/CN2020/122903 § 371(c)(1), (2) Date Sep. 15, 2021, PCT Pub. No. WO2022/082633, PCT Pub. Date Apr. 28, 2022.
Prior Publication US 2024/0031848 A1, Jan. 25, 2024
Int. Cl. H04W 24/10 (2009.01); H04L 5/00 (2006.01); H04W 56/00 (2009.01); H04W 76/30 (2018.01)

CPC H04W 24/10 (2013.01) [H04L 5/001 (2013.01); H04W 56/001 (2013.01); H04W 76/30 (2018.02)]

20 Claims

1. One or more non-transitory, computer-readable media having instructions that, when executed, cause processing circuitry to:

perform, based on a high-speed mode with a radio access network (RAN) an intra-frequency measurement within a measurement period for an intra-frequency measurement with measurement gap (MG) resource, wherein the measurement period for a discontinuous reception (DRX) cycle greater than 160 milliseconds and less than or equal to 320 milliseconds is based on the equation max (200 ms, ceil (M2×4))×max (MGRP, DRX cycle))×CSSF_intrafor the high-speed mode, wherein ms is milliseconds, MGRP is a measurement gap repetition period, M2 equals 1.5 if a synchronization signal/physical broadcast channel-based measurement time configuration (SMTC) periodicity is greater than 40 milliseconds and otherwise equals 1, and CSSF_intrais a cell specific scaling factor for intra-frequency measurement.

9. A method comprising:

generating an indication that a high-speed mode is to be implemented for a radio access network (RAN); and

determining a measurement period for an intra-frequency measurement with measurement gap (MG) resource, wherein the measurement period for a discontinuous reception (DRX) cycle greater than 160 milliseconds and less than or equal to 320 milliseconds is based on the equation max (200 ms, ceil (M2×4)×max (MGRP, DRX cycle))×CSSF_intrafor the high speed mode, wherein ms is milliseconds, MGRP is a measurement gap repetition period, M2 equals 1.5 if a synchronization signal/physical broadcast channel-based measurement time configuration (SMTC) periodicity is greater than 40 milliseconds and otherwise equals 1, and CSSF_intrais a cell specific scaling factor for intra-frequency measurement.

15. A method comprising:

determining that a high-speed mode is to be implemented in frequency range 1 (FR1) carrier aggregation;

determining an operation to be performed on a deactivated secondary component carrier (SCC);

determining a period for performance of the operation based on a carrier specific scaling factor (CSSF_intra), wherein a sample number for layer 1 (L1) filtering for the period is less than five for the operation being a primary synchronization signal (PSS)/secondary synchronization signal (SSS) detection operation and intra-frequency measurements, and wherein the sample number is less than three for the operation being a time index detection operation; and

performing the operation.