A method of operating a wireless communication device (102) in a wireless communication system (100) comprises transmitting a control signal to a node (102) of the wireless communication system (100). The control signal is indicative of a mapping between at least one antenna port (5031-5033) and at least one antenna panel (5023, 5024) of the wireless communication device (102).

Aspects described herein relate to activating, by a user equipment (UE), or causing activation of, by a base station, one or more antenna panels at the UE. An action time for activating or deactivating the one or more antenna panels may also be used to allow processing time related to activation or deactivation of the antenna panels.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect a trigger for entering an antenna switched diversity low power mode. The UE may switch from a first antenna switched diversity mode with a first interval between antenna switched diversity measurements to a second antenna switched diversity mode with a second interval between the antenna switched diversity measurements based at least in part on detecting the trigger for entering the antenna switched diversity low power mode. Numerous other aspects are provided.

There are provided systems, methods, and interfaces for optimization of the fronthaul interface bandwidth for Radio Access Networks and Cloud Radio Access Networks.

Control for multi-panel user equipment (MPUE) activation may be performed by both the MPUE and a base station. The MPUE may have at least a first panel and a second panel. The MPUE may send to the base station, a request to change an activation status of at least one panel of the MPUE. The base station may transmit a response indicating whether the request has been approved. The MPUE may change the activation status of the panel according to the response. Conversely, the MPUE may receive a command from the base station to change an activation status of at least one panel of the MPUE. The MPUE may determine whether to follow the command or override the command. The MPUE may transmit a response indicating whether the MPUEUE has followed the command or overridden the command.

Embodiments of an apparatus of a user equipment (UE) configured for operation in a fifth-generation system (5GS) are described herein. The UE comprises first and second array antennas for transmission of mmWave signals including a sounding-reference signal (SRS). In response to decoding radio-resource configuration (RRC) signalling that indicates antenna switching for SRS, the UE initiates a countdown timer and transitions the second array antenna from a low-power state to an active state. If a downlink control information (DCI) indicating SRS antenna switching is not received while the countdown timer is active, the UE generates a command to transition the second array antenna to a low-power state upon expiration of the countdown timer.

Various embodiments disclosed herein provide for a beam recovery when there has been a partial control channel failure. Transient obstructions, and other interference effects can cause the failure of a beam pair link which can comprise a transmit beam and a receive beam associated with respective antennas on a transmitter and receiver. A group of control channels (downlink control channels) (configured as a control resource set “CORESET”) on a group of beam pair links can be associated with a group of uplink control resources (Physical Uplink Control Channel resources). When a subset of the CORESET group fails, the user equipment (UE) device can find another PUCCH that is associated with a working CORESET to send an indication to the network about the failure. When the network receives the indication, the network can switch the failed CORESET to a new beam pair link.

A method for adjusting an antenna module can be applied to a terminal and include: transmitting, to a base station, the sending capability information of at least one antenna module of the terminal and/or the receiving capability information of at least one antenna module of the terminal; and according to a control signaling transmitted by the base station, controlling at least one antenna module of the terminal to work or stop working. Transmission efficiency of the terminal can therefore be improved, or be maintained while saving the power consumption of the terminal.

The present invention is directed to energy-efficient hibernation in indoor wireless localization systems. A tag passively associates with a detection point (DP) and establishes a reveille time. The tag will awaken at the reveille time and send or receive a beacon to or from its associated DP. If the tag is receiving a beacon, it will awaken, receive, phase-lock its clock based on when the beacon was expected and when it was actually received, and return to hibernation. The DP transmits a scattershot of beacons, one for every tag in the system. If the tag is sending a beacon, it will awaken, send its beacon, and return to hibernation. The DP will receive the beacon and adjust its own clock based on the delay between when the beacon was expected and when it was actually received. The tag will broadcast its location to the DP on a set interval.

A reception apparatus of a time division multiple access (TDMA) system for performing intermittent reception by a reception period of a time slot and a non-reception period of a predetermined number of time slots which follow the reception period and in which reception is suspended includes a symbol clock controller configured to perform symbol synchronization at a timing at which a synchronous word included in the reception period after the non-reception period, and correct a symbol clock frequency of a symbol clock based on a number of time slots and a symbol count value during a previous reception period and the non-reception period following the previous reception period; and a reception period controller configured to correct, after detection of the synchronous word, a reception termination timing of the reception period in which the synchronous word is detected based on the symbol clock with the corrected symbol clock frequency.