In one embodiment, a RF signal repeater switchable between SISO and MIMO comprises: a controller; a first transmitter path switchably coupled to first donor and coverage antennas; a second transmitter path switchably coupled to second donor and coverage antennas; a first receiver path switchably coupled to the first donor and coverage antennas; a second receiver path switchably coupled to the second donor and coverage antennas. The controller configures the repeater for a MIMO TDD operating mode by: configuring the first transmitter path and the second receiver path to repeat at least a first MIMO channel of UE uplink RF signals and at least a first MIMO channel of base station downlink RF signals; and configuring the second transmitter path and the first receiver path to repeat at least a second MIMO channel of UE uplink RF signals and at least a second MIMO channel of base station downlink RF signals.

Facilitating improved performance based on inferred user equipment device speed for advanced networks (e.g., 4G, 5G, 6G, and beyond) is provided herein. Operations of a system can comprise estimating a speed of a user equipment device based on a number of times that a layer indicator associated with the user equipment device changes during a defined period of time. The operations can also comprise selecting a multiple input transmission mode for a transmission to the user equipment device based on the speed of the user equipment device, resulting in a selected transmission mode. A closed loop multiple input transmission mode can be selected in response to the speed being below a defined speed. Alternatively, an open loop multiple input transmission mode can be selected in response to the speed being above the defined speed.

The described techniques relate to improved methods, systems, devices, or apparatuses that support channel state information feedback for semi-open-loop and open-loop schemes. The described techniques provide for a user equipment (UE) to determine an open-loop, semi-open-loop, or closed-loop transmission scheme for deriving channel quality information (CQI). In the case of determined open-loop transmission scheme, the UE may select a transmission scheme corresponding to a time offset value and a precoder cycling granularity value. The UE may determine one or more of a time offset value, a precoder cycling granularity value, and a precoding matrix indicator (PMI) for a channel state information (CSI) report, and generate CQI accordingly. Additionally, the UE may include the determined values in the CSI report to indicate the transmission scheme used for the CQI derivation. Based on the CQI, the base station can then determine the transmission scheme and perform link adaption accordingly.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first device may receive, from a second device, a sounding reference signal (SRS) prior to a scheduled communication. The first device may transmit, to the second device, an indication that a measurement of the SRS does not satisfy a threshold, if the measurement of the SRS does not satisfy the threshold. The first device may activate, based at least in part on the transmitting the indication and before the scheduled communication, a multi-point communication mode. Numerous other aspects are described.

The technology disclosed herein includes an apparatus including an antenna, a plurality of wireless endpoints using the antenna, and a co-ex manager configured to measure an activity level of a wireless endpoint over a predetermined time period, compare the measured activity level of the wireless endpoint with a threshold activity level, and in response to the comparison, change an antenna operating mode of the wireless endpoint.

Methods, systems, and devices for wireless communications are described. In some systems, a network may schedule a user equipment (UE) for multiple transmission/reception point (TRP) communication. The network may transmit a single downlink control information (DCI) message to the UE to dynamically configure multiple transmission configuration indicator (TCI) states for the multiple TRPs. In a first example, the DCI message may include a bit field indicating a set of antenna ports and the multi-TRP scheme for transmission. In a second example, the DCI message may include a separate field indicating the multi-TRP scheme (e.g., based on UE capabilities). In a third example, the DCI may indicate redundancy versions (RVs) for different TRPs in an RV field or across multiple fields. In a fourth example, the DCI may include an indication of a precoding resource block group (PRG) size that may be interpreted differently based on the indicated multi-TRP scheme.

Disclosed is a 5th generation (5G) or pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4th) communication system such as long term evolution (LTE). A device of a terminal, according to various embodiments of the disclosure, can comprise at least one processor and at least one transceiver, which: receives, from a base station, indication information which is determined according to whether channel reciprocity with the base station is satisfied and which is for controlling a beamforming operation of the terminal; and receives, from the base station, a reference signal and transmits uplink data to the base station on the basis of the indication information and the reference signal.

[Problem] The base station includes a plurality of radio communication units configured to individually support a plurality of communication capabilities, and performs, for a terminal station that is connected to the base station, control for selecting a radio communication unit based on a communication scheme supported in the terminal station. [Solution] Provided is a radio communication method for a radio communication system including a plurality of base stations provided with a plurality of radio communication units for which different communication schemes are settable, and a terminal station configured to perform radio communication with the radio communication unit of the base station by using a specific communication scheme. The radio communication method includes setting, at the base station, for the radio communication units, different communication schemes based on a setting policy of the communication scheme, and a switching policy used for selecting the radio communication unit to which the terminal station is to be connected, collecting, at the base station, communication scheme information on a communication scheme selectable by the terminal station, when the terminal station establishes a connection or a reconnection with the base station, selecting, at the base station, a radio communication unit to which the terminal station is to be connected, in accordance with the communication scheme information, the setting policy, and the switching policy, and updating, at the base station, the setting policy and the switching policy for the radio communication unit.

A system comprising a relay device that configures to a first beamforming setting for a first set of antenna arrays to establish a first link between the relay device and a source device, and a second beamforming setting to establish a second link between the relay device and a destination device. A data stream is processed based on a selection of one of a passive mode or an active mode of relay operation. In the passive mode, a received radio frequency waveform of the data stream is down-converted to an intermediate frequency waveform, re-amplified, and then up-converted for transmission without requiring any data demodulation, and in the active mode, the IF waveform is demodulated and then remodulated for the transmission. The data stream is forwarded to the destination device through the second link based on the selection of one of the passive or active mode.

A terminal includes a transmission unit configured to transmit, to a base station, information indicating whether or not transmission diversity is supported, a reception unit configured to receive, from the base station, information indicating a transmission diversity scheme in a case where transmission diversity is supported, and a control unit configured to switch to a transmission diversity scheme based on the information indicating the transmission diversity scheme, wherein the transmission unit is configured to perform transmission by applying the transmission diversity scheme to which the switch was made.