Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a base station may transmit a control channel such as a PDCCH using one or more control resource sets (CORESETs). A CORESET may be associated with a number of different transmission configuration indicator (TCI) states which may specify information that a UE may use to receive the PDCCH. In some cases, the UE may identify an association between resources of the CORESET and a number of TCI states assigned to a CORESET using various different multiplexing techniques, such as time division multiplexing (TDM). Some associations between the resources of the CORESET and the TCI states may include a mapping of the resources of the CORESET to the different TCI states. The UE may decode the PDCCH based on the different TDM techniques used to configure the CORESET.

A method and an apparatus are provided for monitoring a physical downlink control channel (PDCCH) by a user equipment (UE) in a wireless communication system. The UE receives a system information block (SIB) from a base station. The UE identifies downlink (DL) subframes indicated by a first time division duplex (TDD) uplink (UL)/DL configuration in the SIB. The UE monitors the PDCCH transmitted from the base station on at least one DL subframe included in an active time of a discontinuous reception (DRX) cycle among the DL subframes. The UE obtains information about a second TDD UL/DL configuration from the monitored PDCCH. The UE monitors the PDCCH using the second TDD UL/DL configuration. The active time includes a duration corresponding to a number of at least one consecutive DL subframe at a beginning of the DRX cycle.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication that the UE is to communicate using a frequency division duplexing (FDD) configuration on an unpaired frequency band that includes at least one uplink frequency region and at least one downlink frequency region in accordance with the FDD configuration. The UE may communicate the FDD configuration. Numerous other aspects are provided.

Various arrangements for spectrum sharing among a terrestrial network and a non-terrestrial network are presented herein. A first bandwidth part having a first frequency range for may be assigned use for communication between one or more UE of a plurality of UE and a terrestrial cellular network when a high signal strength is present. A second bandwidth part having a second frequency range may be assigned for use for communication between one or more UE of the plurality of UE and the terrestrial cellular network when a low signal strength is present. A third bandwidth part having a third frequency range can be assigned for use for communication between one or more UE of the plurality of UE and a non-terrestrial network. The third bandwidth part can overlap with the first bandwidth part but not the second bandwidth part.

A guard period for switching between uplink and downlink subframes is created by shortening a downlink subframe, i.e., by not transmitting during one or more symbol intervals at the end of the subframe. A grant message includes signaling indicating when a shortened subframe is being transmitted. An example method is implemented in a receiving node configured to receive data from a transmitting node in subframes having a predetermined number of symbol intervals. In an LTE system, this receiving node may be a UE, and the subframes are downlink subframes. This example method includes determining that a received subframe is to be shortened, relative to the predetermined number of symbol intervals and, in response to this determination, disregarding a last part of the received subframe by disregarding one or more symbols at the end of the received subframe when processing the received subframe.

Provided is a method for communication for a second terminal and a second terminal apparatus using the method in a wireless communication system utilizing a first frequency band by which a first terminal can receive a signal from a base station and a second frequency band by which the first terminal can transmit a signal to the base station. The method is characterized by receiving a signal from the base station from a part of a subframe of the second frequency band, and transmitting a signal to the base station from the remaining subframe of the second frequency band.

Technologies and implementations for wireless communication in a wireless network including transmitting downlink information on a first frequency channel to Frequency Division Duplexing (FDD) User Equipments (UEs), transmitting downlink information on a second frequency channel during downlink portions of Time Domain Duplex (TDD) frame periods of the second frequency channel to TDD UEs, wherein the second frequency channel is the same as the frequency channel on which the FDD UEs are configured to transmit, and controlling uplink transmissions from the FDD UEs to occur only during uplink portions of TDD frame periods of the second frequency channel.

The present disclosure provides a method for receiving a synchronization signal block by a UE in a wireless communication system. Particularly, the method includes receiving at least one SSB mapped to a plurality of symbols, wherein two regions for candidate SSBs in which the at least one SSB can be received are allocated in a specific time duration including the plurality of symbols, and a time between the two regions, a time before the two regions and a time after the two regions are identical in the specific time duration.

The present invention relates to a wireless communication system. More specifically, the present invention relates to triggering conditions for power headroom reporting (PHR) in a wireless network employing TDD scheme. According to one aspect of the present invention, the a user equipment (UE), receives information on a first time division duplex (TDD) uplink/downlink (UL/DL) subframe configuration, and information on a second TDD UL/DL subframe configuration informing the UE of a change from the first TDD UL/DL subframe configuration. And, the UE triggers a power headroom reporting (PHR), when the information on the second TDD UL/DL subframe configuration is received.

Provided is a flexible numerology configuration method for an NR. In particular, a method may be provided for transmitting a synchronization signal and system information for a user equipment in a new radio access network. The method may include defining one or more subcarrier spacings to transmit at least one synchronization signal and at least one system information transmission channel in a frequency band of the new radio access network, determining one of the one or more subcarrier spacings to transmit the at least one synchronization signal and the at least one system information transmission channel, and transmitting at least one of the at least one synchronization signal and the at least one system information transmission channel based on the determined subcarrier spacing.