An extended power class for Uplink (UL) Multiple Input Multiple Output (MIMO) communications is provided. In this regard, a User Equipment (UE) configured to UL MIMO can indicate support for a first power class corresponding to a first power level. The UE can transmit a single layer Physical UL Shared Channel (PUSCH) on one antenna port at a power that is at most a first power level corresponding to the first power class. The UE can also transmit an N-layer PUSCH on N antenna ports at a second power level greater than the first power level. With the extended power class, UEs are able to deliver higher power signals without increasing the maximum power of their Power Amplifiers (PAs). This greater power can lead to better user experience, less battery drain, and higher network capacity.

Provided is a transmission power allocation method based on reinforcement learning with an efficient user clustering method. According to an embodiment of the present disclosure, a transmission power allocation method based on user clustering and reinforcement learning of a base station in a non-orthogonal multiple access (NOMA) system includes a sorting step of sorting channel gains of user equipments located in a coverage of the base station in a size order, a clustering step of allocating the user equipment to each cluster based on the size order, and a power allocation step of allocating power to each user equipment included in the cluster by using a quality function based on a state and an action.

Provided is a terminal apparatus including an estimation unit that estimates a channel to a base station by using a reference signal transmitted from the base station, a selection unit that selects a transmission weight desirable for down-link transmission on the channel from a plurality of transmission weight candidates in accordance with an estimation result by the estimation unit, and a feedback controller that controls feedback of the transmission weight selected by the selection unit to the base station. When the selection unit selects two transmission weights or more, the feedback controller feeds back the selected two transmission weights or more to the base station.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a base station, an indication of whether the UE is capable of using a virtual port to transmit uplink communications using a maximum transmit power according to a power class of the UE, wherein the virtual port is a combination of two or more antenna ports. The UE may receive, from the base station, a sounding reference signal configuration based at least in part on the indication. Numerous other aspects are provided.

A method for facilitating in-device coexistence between wireless communication technologies on a wireless communication device is provided. The method can include transmitting data traffic from the wireless communication device via an aggressor wireless communication technology; determining occurrence of an in-device interference condition resulting from transmission of the data traffic via the aggressor wireless communication technology interfering with concurrent data reception by the wireless communication device via a victim wireless communication technology; and reducing a bit rate of the data traffic transmitted via the aggressor wireless communication technology in response to the in-device interference condition.

Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) participating in a sidelink communications group increments a transmit counter for each packet transmitted by the first UE as part of group communications among the sidelink communications group, increments a receive counter for each packet received by the first UE from a second UE participating in the sidelink communications group as part of group communications among the sidelink communications group; and transmits the transmit counter and the receive counter to a network node based on a configuration received from the network node.

A base station transmits, to a wireless device, a first maximum total transmit power (TTP) and a second maximum TTP allowed, respectively, for a first cell group and a second cell group of a second radio access technology (RAT) type different from a first RAT type of the first cell group. A total transmission power, based on a first power, for transmitting first uplink signals via the first cell group and not exceeding the first maximum TTP, and a second power for transmitting second uplink signals via the second cell group and not exceeding the second maximum TTP, exceeds a power value. The second uplink signals and not the first uplink signals are received based on a scheduled transmission of the first uplink signals being dropped based on: the total transmission power exceeding the power value, and the first RAT type having lower priority than the second RAT type.

Aspects of the subject disclosure may include, for example, detecting a first wireless signal associated with a first communication device that interferes with a second wireless signal associated with a second communication device. Further embodiments include identifying a first frequency band in which the first wireless signal is assigned, the first frequency band associated with a first mobile network, and identifying a second frequency band in which the second wireless signal is assigned, the second frequency band associated with a second mobile network. Additional embodiments can include detecting the first wireless signal is above a first power threshold, and providing instructions to a base station associated with the first communication device. The instructions indicate the base station to assign first wireless signal associated with the first communication device from the first frequency band to a third frequency band associated with the first mobile network. Other embodiments are disclosed.

A transmit power determining method and apparatus are disclosed. The method includes: calculating, channel state information of a channel between the wireless access point device and a station device within a particular time range; comparing, by the wireless access point device, the channel state information with pre-obtained reference channel state information, and adjusting, according to a result of the comparison, a transmit power currently used by the wireless access point device; and sending, by the wireless access point device to the station device by using a transmit power after the adjustment, a message carrying data. During implementation of the present disclosure, a transmit power for sending data can be adjusted according to channel state information corresponding to a channel between a wireless access point device and a station device, thereby avoiding unnecessary power overheads and a waste of energy.

A radio communication system for an industrial automation system includes at least one first communication device operated as a radio base station, and several second radio communication devices operated as radio subscriber stations, wherein the first communication device is arranged or movable on a vehicle, where the first communication device and the second communication devices can be assigned to a group of communication devices and can only be connected to one another in a wireless manner within the same group of communication devices, where the first communication device and the second communication devices detect within their assigned communication device group distances between the first communication device and the respective second communication device, on the basis of signal strength measurement values or position data and where, depending on the detected distances, the first communication device allocates radio resources for a radio communication with the respective second communication device.