US 11,856,583 B2
Wireless communication device, wireless communication method, and computer program
Naoki Kusashima, Tokyo (JP)
Assigned to Sony Corporation, Tokyo (JP)
Appl. No. 17/261,579
Filed by Sony Corporation, Tokyo (JP)
PCT Filed Aug. 1, 2019, PCT No. PCT/JP2019/030131
§ 371(c)(1), (2) Date Jan. 20, 2021,
PCT Pub. No. WO2020/031820, PCT Pub. Date Feb. 13, 2020.
Claims priority of application No. 2018-150340 (JP), filed on Aug. 9, 2018.
Prior Publication US 2021/0266881 A1, Aug. 26, 2021
Int. Cl. H04W 72/23 (2023.01); H04L 5/00 (2006.01); H04W 16/04 (2009.01); H04L 27/26 (2006.01); H04W 16/14 (2009.01); H04W 72/0446 (2023.01)
CPC H04W 72/23 (2023.01) [H04L 5/0048 (2013.01); H04W 16/14 (2013.01); H04W 72/0446 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A wireless communication device comprising:
a transceiver; and
control circuitry configured to control the transceiver to perform wireless communication using an unlicensed band, the wireless communication comprising:
detecting a downlink based on two downlink signals that are each different from a periodically transmitted cell specific reference signal (CRS): and
based on detecting the downlink, monitoring for and detecting a Physical Downlink Control Channel (PDCCH);
wherein the two downlink signals comprise:
a preamble signal located within a head of a first slot of a channel occupancy time (COT) of the downlink signal, the downlink signal having a transmission cycle that is independent of a transmission cycle of the PDCCH, the preamble signal being an aperiodic preamble signal or a periodic preamble signal, the preamble signal including a cell ID, a beam ID and an operator ID, and
one of a Channel State Information-Reference Signal (CSI-RS) or a Radio Link Monitoring-Reference Signal (RLM-RS),
wherein the preamble signal located within the head of the first slot of the COT of the downlink signal includes a first symbol corresponding to a first symbol type and a second symbol corresponding to a second symbol type different from the first symbol type, the first and second symbols arranged within the head of the first slot of the COT of the downlink signal in a predetermined pattern.