Method and device for wireless communication in UE and base station

#This application claims the priority benefit of Chinese Patent Application No. 202010639812.6, filed on Jul. 6, 2020 and the priority benefit of Chinese Patent Application No. 202010671045.7, filed on Jul. 13, 2020, the full disclosure of which is incorporated herein by reference.

#The present disclosure relates to methods and devices for transmission in wireless communication systems, and in particular to a method and device of radio signal transmission in a wireless communication system supporting cellular network.

#Application scenarios of future wireless communication systems are becoming increasingly diversified, and different application scenarios have different performance demands on systems. In order to meet different performance requirements of various application scenarios, the 3rd Generation Partner Project (3GPP) Radio Access Network (RAN) #75 plenary approved a study item (SI) of access to Unlicensed Spectrum of New Radio (NR), and later at the 3GPP RAN #78 Plenary it was decided that the access to Unlicensed Spectrum was supported in NR Release (R)15. In Long Term Evolution (LIE) and NR systems, a transmitter, i.e., a base station or a User Equipment (UE), shall first perform Listen Before Talk (LBT) before transmitting data on Unlicensed Spectrum to ensure no interference with other ongoing wireless transmissions on the Unlicensed Spectrum.

#Other features, objects and advantages of the present disclosure will become more apparent from the detailed description of non-restrictive embodiments taken in conjunction with the following drawings:

#FIG. 1 illustrates a flowchart of a first signal and a first-type signaling according to one embodiment of the present disclosure.

#FIG. 2 illustrates a schematic diagram of a network architecture according to one embodiment of the present disclosure.

#The technical scheme of the present disclosure is described below in further details in conjunction with the drawings. It should be noted that the embodiments of the present disclosure and the characteristics of the embodiments may be arbitrarily combined if no conflict is caused.

#Embodiment 1 illustrates a flowchart of a first signal and a first-type signaling according to one embodiment of the present disclosure, as shown in FIG. 1. In 100 illustrated by FIG. 1, each box represents a step. Particularly, the sequential order of steps arranged in the boxes does not imply any specific chronological order of these steps.

#In Embodiment 1, the first node in the present disclosure transmits a first signal in step 101; and monitors a first-type signaling in a first resource block in a first time window in a first sub-band in step 102. Herein, the first signal is used to determine a first reference signal; for the monitoring on the first-type signaling in the first resource block in the first time window, the first node assumes same QCL parameters as a target reference signal; the target reference signal is either the first reference signal or a second reference signal; whether the first time window belongs to a first-type time window is used to determine the target reference signal between the first reference signal and the second reference signal; any said first-type time window corresponds to a reference signal group, a target time window is the first-type time window, and the target time window corresponds to a target reference signal group; when the first time window belongs to the target time window, whether the first reference signal and one reference signal from the target reference signal group are QCLed is used to determine the target reference signal between the first reference signal and the second reference signal.