US 12,262,258 B2
Early measurements during inter-rat cell reselection in wireless communication
Peng Cheng, San Diego, CA (US); and Masato Kitazoe, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 17/629,472
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed Jul. 26, 2019, PCT No. PCT/CN2019/097851
§ 371(c)(1), (2) Date Jan. 24, 2022,
PCT Pub. No. WO2021/016734, PCT Pub. Date Feb. 4, 2021.
Prior Publication US 2022/0248277 A1, Aug. 4, 2022
Int. Cl. H04W 36/00 (2009.01); H04W 36/08 (2009.01); H04W 36/14 (2009.01)
CPC H04W 36/0058 (2018.08) [H04W 36/00692 (2023.05); H04W 36/0085 (2018.08); H04W 36/08 (2013.01); H04W 36/144 (2023.05)] 60 Claims
OG exemplary drawing
 
1. A method of operating a user equipment (UE) in a network comprising a first cell and a second cell, comprising:
receiving a measurement configuration from the first cell using a first radio access technology (RAT), the measurement configuration configuring the UE to perform early measurements for the first RAT and a second RAT;
reselecting from the first cell to the second cell configured to use the second RAT;
determining whether to continue the early measurements after reselecting to the second cell based on the measurement configuration, wherein determining whether to continue the early measurements comprises:
determining that the second cell is inside a validity area associated with inter-RAT reselection according to the measurement configuration;
determining that the UE is capable of carrier aggregation or multi-RAT dual connectivity using a frequency of the first cell and a frequency of the second cell; and
continuing a validity timer associated with the early measurements; and
reporting the early measurements to the second cell.