A wireless communication system according to an embodiment includes: a wireless base station device configured to perform wireless communication of an orthogonal frequency division multiplexing (OFDM) method; a plurality of dynamic control relay devices for which a reradiation direction of incoming waves is dynamically controllable by the wireless base station device; and a wireless terminal device configured to perform wireless communication with the wireless base station device using a plurality of propagation paths that go through or do not go through the dynamic control relay devices. When the wireless communication is performed between the wireless base station device and the wireless terminal device using the plurality of propagation paths that go through the dynamic control relay devices, second OFDM subcarrier spacing is used, the second OFDM subcarrier spacing being spacing that is narrower than first OFDM subcarrier spacing that is used when the wireless communication is performed using the plurality of propagation paths that do not go through the dynamic control relay devices.

There is disclosed a method of operating a radio node in a wireless communication network. The method includes obtaining delay characteristic information for a set of wireless devices, the delay characteristic information for each of the set of wireless devices pertaining to one or more signaling beams of a set of signaling beams, and communicating with subgroups of wireless devices of the set of wireless devices using signaling beams selected from the set of signaling beams based on the delay characteristic information. For each subgroup, a different selected signaling beam is used for communicating. The disclosure also pertains to related devices and methods.

Methods and apparatuses for orthogonal frequency-division multiplexing (OFDM) symbols adjustment for a configured sidelink (SL) transmission in a wireless communication system. A method of user equipment (UE) method includes receiving a set of configurations, determining a set of time and frequency domain resources for at least one SL transmission based on the set of configurations, and determining a duration for a cyclic prefix (CP) extension based on the set of configurations. The method further includes extending a first OFDM symbol of the at least one SL transmission for an interval preceding the first OFDM symbol with the duration for the CP extension and transmitting the at least one SL transmission.

This disclosure describes systems, methods, and devices related to extended range modulation and coding scheme (MCS). A device may generate a first orthogonal frequency-division multiplexing (OFDM) signal to be transmitted in a frequency band. The device may generate a second OFDM signal to be transmitted in the frequency band, wherein the second OFDM signal is a duplicate of the first signal. The device may assign a reduced number of guard intervals (GIs) to the first OFDM signal and the second OFDM signal. The device may cause to send the first OFDM signal and the second OFDM signal using the frequency band.

Disclosed are techniques for wireless communication. In an aspect, a method, performed by a network node, for selection of uplink control information (UCI) transmission format, comprises determining whether to use a coherent transmission; upon determining to use a coherent transmission, selecting a coherent transmission format for UCI transmission. Upon determining not to use a coherent transmission the method further includes determining whether to use an orthogonal sequence: upon determining to use an orthogonal sequence, the method includes selecting a non-coherent transmission format with an orthogonal sequence for UCI transmission; upon determining not to use an orthogonal sequence, the method includes selecting a non-coherent transmission format with a non-orthogonal sequence for UCI transmission. The method further includes using the selected format for UCI transmission. For example, a base station may send the selected format for UCI transmission to a UE, or a UE may select and use the UCI transmission format.

The present disclosure relates to a communication method and system for converging a 5.sup.th-Generation (5G) communication system for supporting higher data rates beyond a 4.sup.th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure provides a method for uplink power control, which is applied to a User Equipment (UE), and the method includes: determining a timing between a power control command and a Physical Uplink Control Channel (PUCCH), which adopts the power control command to control power. The present disclosure also provides a corresponding device.

There is disclosed a method of operating a transmitting radio arrangement in a wireless communication network, the transmitting radio arrangement utilising a first beam pair and a second beam pair for communicating with a radio node, the method including transmitting first signaling on the first beam pair and second signaling on the second beam pair, the first signaling and/or second signaling comprising an extend guard interval. The disclosure also pertains to related devices and methods.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an uplink grant that schedules a sounding reference signal (SRS) transmission and a physical uplink shared channel (PUSCH) transmission and indicates one or more parameters for determining a cyclic prefix extension. The UE may determine the cyclic prefix extension based at least in part on the one or more parameters. The UE may transmit the SRS transmission with the cyclic prefix extension after performing a listen before talk (LBT) procedure. Numerous other aspects are provided.

Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for efficiently determining appropriate uplink frequencies for uplink transmissions to a satellite. As described herein, a wireless communications system may support a closed loop frequency correction scheme where a satellite may provide an uplink frequency correction to a user equipment (UE) such that the UE may be able to identify an appropriate uplink frequency for an uplink transmission. In some implementations, the UE may first transmit an uplink signal to the satellite on an initial uplink frequency, and the satellite may determine a corrected uplink frequency for the UE based on the initial uplink frequency. The satellite may then transmit an indication of the corrected uplink frequency to the UE, and the UE may transmit a second uplink signal based on the corrected uplink frequency.

Methods and apparatus for determining and adjusting subcarrier spacing (SCS) to be used by a base station, e.g., a CBSD, for transmitting downlink data to one or more wireless devices, e.g., UEs, are described. A subcarrier spacing (SCS) level to be used by the base station is determined based on information relating to buffering of downlink data supplied to the base station via a cable, e.g., data accumulation rate (DAR) and/or average data arrival time (ADAT). Measured cable modem (CM) to base station latency is also used in the SCS determination. The amount of time for which a determined SCS level is to be used by the base station is set based on measured latency between a CMTS and the CM.