US 12,132,594 B2
Method and device in base station for unlicensed spectrum
Zheng Liu, Shanghai (CN); and Xiaobo Zhang, Shanghai (CN)
Assigned to SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED, Shanghai (CN)
Filed by Zheng Liu, Shanghai (CN); and Xiaobo Zhang, Shanghai (CN)
Filed on Jul. 6, 2023, as Appl. No. 18/218,605.
Application 18/218,605 is a continuation of application No. 17/827,827, filed on May 30, 2022, granted, now 11,743,088.
Application 17/827,827 is a continuation of application No. 15/931,620, filed on May 14, 2020, granted, now 11,381,440.
Application 15/931,620 is a continuation of application No. PCT/CN2017/113311, filed on Nov. 28, 2017.
Prior Publication US 2023/0353437 A1, Nov. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 27/26 (2006.01); H04L 1/1812 (2023.01); H04W 16/14 (2009.01); H04W 72/1273 (2023.01)
CPC H04L 27/2627 (2013.01) [H04L 1/1812 (2013.01); H04W 72/1273 (2013.01); H04W 16/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method in a base station for wireless communications, comprising:
transmitting K1 radio signals in a first reference time window, each radio signal of the K1 radio signals is transmitted through a Physical Downlink Shared Channel (PDSCH);
receiving K1 HARQ feedbacks; and
performing Q1 energy detections respectively in Q1 time sub-pools on a first frequency sub-band, the energy detections are energy detections for LBT, the first frequency sub-band is a carrier or the first frequency sub-band is composed of frequency-domain resources occupied by a positive integer number of Physical Resource Blocks (PRBs) in frequency domain;
wherein the K1 HARQ feedbacks are respectively used for determining whether the K1 radio signals are correctly received; a first radio signal is one radio signal of the K1 radio signals, the first radio signal carries part of bits comprised by a first bit block; a first HARQ feedback is used for determining whether the first radio signal is correctly received, HARQ feedback(s) other than the first HARQ feedback among the K1 HARQ feedbacks is(are) used for determining the Q1 time sub-pools, both the K1 and the Q1 are positive integers greater than 1; the reference time window comprises a last downlink transmission for which a HARQ-ACK is available prior to the Q1 time sub-pools or the reference time window comprises resources occupied by the K1 radio signals in time domain; one of the energy detections means that the base station senses all radio signals on the first frequency sub-band in one time sub-pool of the Q1 time sub-pools to obtain a power.