Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive one or more downlink control information (DCI) transmissions including a plurality of transmit power control (TPC) commands. The plurality of TPC commands may relate to an uplink channel transmit power for a plurality of uplink beam-pairs. The wireless communication device may determine the uplink channel transmit power for the plurality of uplink beam-pairs based at least in part on the plurality of TPC commands. Numerous other aspects are provided.

Systems and methods are described for reducing a maximum allowable transmit power of a wireless device. Instructions to reduce a maximum transmit power of wireless devices operating at a carrier band edge of a band channel maybe received at an access node. Power headroom reports may be collected from the wireless devices. The wireless devices may be classified based on the collected power headroom reports. Power reduction may be imposed on wireless devices classified as low power wireless devices and wireless devices classified as high power wireless devices may be handed off to a neighboring band channel.

Methods, systems, and devices for wireless communications are described that provide for a transmission of uplink control information (UCI) from a user equipment (UE) to a base station using uplink shared channel resources in the absence of other uplink shared channel data. Based in the UCI and uplink control parameters, the UE may determine an uplink power for transmission of the UCI based at least in part on a spectrum efficiency or a number of bits per resource element (BPRE) for the UCI.

Disclosed is a radio communication system in which transmission parameters, such as MCS of MBSFN, the number of subframes, and a transmission power of a reserved cell, are adaptively output, based on a unicast traffic volume in a MBSFN area, a number of terminals, and a number of cells of the MBSFN area, so that a system throughput in the MBSFN area is maximized while satisfying an MBSFN quality requirement condition.

The invention relates to methods for adjusting the transmit power utilized by a mobile terminal for uplink transmissions, and to methods for adjusting the transmit power used by a mobile terminal for one or more RACH procedures. The invention is also providing apparatus and system for performing these methods, and computer readable media the instructions of which cause the apparatus and system to perform the methods described herein. In order to allow for adjusting the transmit power of uplink transmissions on uplink component carriers, the invention suggests introducing a power scaling for uplink PRACH transmissions performing RACH procedures on an uplink component carrier. The power scaling is proposed on the basis of a prioritization among multiple uplink transmissions or on the basis of the uplink component carriers on which RACH procedures are performed.

According to one embodiment of the present invention, a method by which a terminal receives a multimedia broadcast multicast service (MBMS) signal on the basis of non-orthogonal multiple access (NOMA) operation in a wireless communication system comprises the steps of: receiving an MBMS signal including a basic MBMS layer and an extended MBMS layer multiplexed by different power values on a power domain; and clearing of the basic MBMS layer from the received MBMS signal so as to acquire the extended MBMS layer, wherein the basic MBMS layer is received by a single frequency network (SFN) method from a serving cell and a neighbor cell, and the extended MBMS layer is received from the serving cell and not from the neighbor cell.

Disclosed is a radio communication system in which transmission parameters, such as MCS of MBSFN, the number of subframes, and a transmission power of a reserved cell, are adaptively output, based on a unicast traffic volume in a MBSFN area, a number of terminals, and a number of cells of the MBSFN area, so that a system throughput in the MBSFN area is maximized while satisfying an MBSFN quality requirement condition.

The invention relates to methods for adjusting the transmit power utilized by a mobile terminal for uplink transmissions, and to methods for adjusting the transmit power used by a mobile terminal for one or more RACH procedures. The invention is also providing apparatus and system for performing these methods, and computer readable media the instructions of which cause the apparatus and system to perform the methods described herein. In order to allow for adjusting the transmit power of uplink transmissions on uplink component carriers, the invention suggests introducing a power scaling for uplink PRACH transmissions performing RACH procedures on an uplink component carrier. The power scaling is proposed on the basis of a prioritization among multiple uplink transmissions or on the basis of the uplink component carriers on which RACH procedures are performed.

A wireless device (12) is configured to transmit a signal simultaneously from a group (104) of physical antenna ports (106), based on associating disjoint frequency sub-bands with respective ones of the physical antenna ports (106). The frequency sub-bands collectively span a frequency bandwidth and each physical antenna port (106) supports transmission over the frequency bandwidth and has a per-port transmit power associated therewith. The wireless device (12) is configured to transmit the signal further based on allocating the per-port transmit power of each physical antenna port (106) in the group (104) only to frequency elements of the signal that fall within the frequency sub-band associated with the physical antenna port (106). A radio network node (10) in a network (16) is configured to perform channel estimation based on receiving a reference signal from the wireless device (12) and its channel estimation accounts for channel changes that may appear at the border between two frequency sub-bands.

A method includes determining a first transmission power for a first transmission from a user equipment and a second transmission power for a second transmission from the user equipment, the first and second transmission at least partially overlapping, the first and second transmission power being selected in dependence on at least one of which one or more channels are being transmitted and information on the at least one or more channels.