The disclosure provides methods and apparatus relating to the transmission of control information in uplink access of wireless networks. One embodiment provides a method performed by a wireless device operable in a wireless communications network. The method comprises: responsive to failure of transmission in a first transmission time interval of a first transport block comprising first control information, transmitting in a second, subsequent transmission time interval a second transport block comprising second control information, wherein the second control information is an updated version of the first control information. Failure of transmission of the first transport block comprises the wireless device determining that a wireless channel over which the first transport block is to be transmitted is busy in the first transmission time interval.

Method for reporting power headroom, method for receiving power headroom, user equipment, base station, medium and system are provided. The method for reporting power headroom includes: determining a first carrier and a first time slot corresponding to the first carrier for transmitting a PHR; acquiring a first time slot group corresponding to at least one other carrier, wherein the first time slot group includes N time slots, uplink data transmission is performed in at least one of the N time slots, N is a positive integer, and the first time slot includes the first time slot group in a time domain; generating the PHR based on power headroom corresponding to die first time slot and power headroom corresponding to the first time slot group; reporting the PHR to a base station using the first time slot. Power headroom corresponding to different carriers may be accurately reported to the base station.

Provided is a wireless base station which uses distributed antennas and selects a combination of a plurality of wireless terminals and the distributed antennas of a wireless base station that performs multi-user transmission with respect to the plurality of wireless terminals in a multi-BSS wireless environment. The wireless base station includes: a scheduling unit that measures reception power (RSSI) from each wireless terminal at each of the distributed antennas and selects a combination of a plurality of wireless terminals and a plurality of antennas having approximately the same RSSIs in descending order for respective wireless terminals; and a transmission power control unit that sets minimum transmission power corresponding to the RSSI of the antenna when multi-user transmission is performed between the plurality of wireless terminals and the plurality of antennas combined by the scheduling unit.

Provided is a wireless base station which uses distributed antennas and selects a combination of a plurality of wireless terminals and the distributed antennas of a wireless base station that performs multi-user transmission with respect to the plurality of wireless terminals in a multi-BSS wireless environment. The wireless base station includes: a scheduling unit that measures reception power (RSSI) from each wireless terminal at each of the distributed antennas and selects a combination of a plurality of wireless terminals and a plurality of antennas having approximately the same RSSIs in descending order for respective wireless terminals; and a transmission power control unit that sets minimum transmission power corresponding to the RSSI of the antenna when multi-user transmission is performed between the plurality of wireless terminals and the plurality of antennas combined by the scheduling unit.

The disclosure relates to a device and a method for controlling transmission power of an electronic device in a wireless communication system. An electronic device may include: a housing; at least one radio frequency integrated circuit (RFIC) disposed in the housing and configured to support a first radio access technology (RAT) and a second RAT; a first communication processor electrically or operationally connected to the at least one RFIC; a second communication processor electrically or operationally connected to the at least one RFIC and the first communication processor; and at least one memory which is operationally connected to the first communication processor and the second communication process or is a part of at least one of the first communication processor or the second communication processor, and which is configured to store a first threshold value related to the at least one RFIC.

The disclosure relates to a device and a method for controlling transmission power of an electronic device in a wireless communication system. An electronic device may include: a housing; at least one radio frequency integrated circuit (RFIC) disposed in the housing and configured to support a first radio access technology (RAT) and a second RAT; a first communication processor electrically or operationally connected to the at least one RFIC; a second communication processor electrically or operationally connected to the at least one RFIC and the first communication processor; and at least one memory which is operationally connected to the first communication processor and the second communication process or is a part of at least one of the first communication processor or the second communication processor, and which is configured to store a first threshold value related to the at least one RFIC.

A power adjustment method and an electronic device are provided. The method includes: detecting whether first information meets a first preset condition, where the first information includes at least one of the following: a first retransmission rate for uplink data, an actual transmission power for uplink data, or a first maximum transmission rate for uplink data, where the first maximum transmission power is a power threshold for transmitting the uplink data configured by a network device for the electronic device; and in a case that the first information meets the first preset condition, using a preset power control algorithm to adjust the first maximum transmission power to a target transmission power, where the target transmission power is greater than the first maximum transmission power and less than or equal to an inherent maximum transmission power of a radio frequency device of the electronic device.

Embodiments of the present disclosure relate to methods, devices and computer readable storage media for data transmission in a multicarrier system. A transmitting device determines, based on a total power constraint of a set of subchannels between the transmitting device and a receiving device, channel gain and noise power of each of the set of subchannels, and a candidate set of discrete effective power assignments used for each of the set of subchannels, a polygon region comprising a set of discrete operating points each of which represents a rate-power budget pair determined by an optimal discrete power distribution over the set of subchannels with an associated Lagrange multiplier; determines a concave fitting curve in the polygon region to predict the convex hull of the set of the discrete operating points; determines a first Lagrange multiplier based on the fitting curve and the total power constraint; and determines, based on the first Lagrange multiplier, a first optimal discrete power distribution for the data transmission over the set of subchannels. As such, power assignment among the set of subchannels in multicarrier transmission can be efficiently and optimally attained.

A method for reporting a power headroom report includes: in a case that a trigger condition for reporting a power headroom report is satisfied, reporting a power headroom report. The power headroom report includes power headroom report information of at least one power control object, and a power control object is an antenna panel or a beam.

Disclosed is a method that includes measuring a distance to a blockage using a radar functionality of an antenna array, determining, based on the distance, that transmission power is to be limited due to a maximum permissible exposure event, and determining if the distance is greater or shorter than a threshold distance which corresponds to a far-field distance of a radiation pattern used for the radar functionality. Depending upon the distance to the blockage relative to the far-field distance and whether the distance is greater than a minimum distance for obtaining reliable angular directions of the blockage using the radar functionality, the method takes different actions in order to optimize the antenna array configuration for a beam used for uplink transmission to an access node.