US 12,015,940 B2
Reception apparatus, antenna control method, and communication system
Hiroaki Nakano, Kanagawa (JP); Osamu Kozakai, Kanagawa (JP); Masahiro Uno, Kanagawa (JP); and Yuji Murayama, Kanagawa (JP)
Assigned to SONY SEMICONDUCTORSOLUTIONS CORPORATION, Kanagawa (JP)
Appl. No. 17/422,320
Filed by SONY SEMICONDUCTOR SOLUTIONS CORPORATION, Kanagawa (JP)
PCT Filed Dec. 27, 2019, PCT No. PCT/JP2019/051626
§ 371(c)(1), (2) Date Jul. 12, 2021,
PCT Pub. No. WO2020/153105, PCT Pub. Date Jul. 30, 2020.
Claims priority of application No. 2019-008079 (JP), filed on Jan. 21, 2019.
Prior Publication US 2022/0104042 A1, Mar. 31, 2022
Int. Cl. H04W 24/08 (2009.01); H04W 48/16 (2009.01)
CPC H04W 24/08 (2013.01) [H04W 48/16 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A reception apparatus comprising:
plural antennas configured to be compatible with a long-term evolution (LTE) communication scheme;
one reception processing section configured to process a reception signal acquired by any one of the plural antennas;
a signal quality measurement section configured to use, as a first trigger, detection of a synchronization signal used during an initial cell search, to calculate a signal quality value indicative of quality of the reception signal acquired by a corresponding one of the antennas used during the initial cell search; and
a control section configured to:
perform switching of the antenna to another one of the antennas based on the signal quality value being less than a specific threshold, and
use, as a second trigger, lack of detection of the synchronization signal for a given period of time during the initial cell search, to perform switching between the antennas.