This application provides a random access method, a communications apparatus, and a storage medium. The method includes: A terminal device receives first DCI from a network device; and if determining that a type that is of response information and that is indicated by first indication information matches a random access type of a random access request initiated by the terminal device, demodulates a PDSCH indicated by the first DCI. The first DCI includes the first indication information, the first indication information is used to indicate the type of the response information carried on the PDSCH, and the PDSCH carries response information for the random access request initiated by the terminal device. The terminal device demodulates the PDSCH indicated by the first DCI only when determining, based on the first indication information, that the PDSCH indicated by the received first DCI may belong to the terminal device.

Embodiments herein relate to a user equipment (10), a radio base station (12) and methods therein for handling transmission power control of the user equipment (10). The user equipment (10) is served by the radio base station (12) in a serving cell (i) controlled by the radio base station (12). The radio base station (12) or user equipment obtains a first pathloss from the user equipment (10) towards the serving cell (i) and a second pathloss from the user equipment (10) towards an interfered cell (j). The radio base station (12) or the user equipment (10) then selects a value of one or more parameters, respectively, which one or more parameters are to be used to control a transmission power of the user equipment (10) and which value is selected based on the first pathloss and the second pathloss.

A physical random access channel enhanced transmission method, a network device, and a terminal are disclosed, where implementation of the terminal is used as an example, and the terminal includes: a processor, configured to determine level information of physical random access channel PRACH enhanced transmission; and to determine a first characteristic parameter that is of PRACH enhanced transmission and that is related to the determined level information of PRACH enhanced transmission, where the first characteristic parameter includes transmit power and a preamble format; and a transmitter, configured to perform PRACH enhanced sending according to the first characteristic parameter determined by the processor.

Some wireless communications environments, such as Wi-Fi, may include inexpensive power amplifiers where the power adjustment may not be accurate, and may also include pathloss measurement errors that are high enough to degrade performance of a power control algorithm. To address this issue, an exemplary aspect is directed toward a finite state power control algorithm and technique that, while designed for next generation Wi-Fi standards, such as 802.11ax, can in general be used with any wireless communication protocol or standard.

Embodiments of the present invention disclose a power estimation method and apparatus. On a premise of controlling interference caused by a second node to a first node to be within a range, a transmit power of the second node can be increased so as to improve communication quality of the second node. A specific solution is: obtaining an estimated load value of each first node in N first nodes according to a transmit power and user service requirements of each first node that are obtained and according to a transmit power set for each second node in M second nodes, and further, respectively using the transmit power set for each second node as an allowed transmit power of each second node according to the estimated load value of each first node in the N first nodes.

A user apparatus in a radio communication system that includes a base station and the user apparatus includes a transmission unit that transmits a random access preamble with the use of a beam out of a plurality of beams; and a counter retaining unit that has, for each beam, a counter that indicates the number of times of power ramping performed in transmission of a random access preamble.

There is provided a communication control device including a power distribution unit configured to distribute, to one or more secondary systems, a transmission power accepted for a secondary usage of a frequency channel which is protected for a primary system, and a notification unit configured to notify each secondary system of a value of a second transmission power which is decided depending on a value of a first transmission power distributed by the power distribution unit. Upon updating the transmission power, only in a case where a value of the second transmission power which is previously notified and a value of the first transmission power which is newly distributed by the power distribution unit satisfy a predetermined condition with respect to a certain secondary system, the notification unit notifies the secondary system of a new value of the second transmission power.

Methods and apparatuses for power control are disclosed. A method comprises: receiving a first signaling indicating one or multiple power values for a downlink reception from a node, each power value being associated with a spatial domain filter, and determining a power value for the downlink reception from the node.

Techniques for performing path loss (PL) compensation in coordinated multipoint (CoMP) systems are provided. A method for wireless communications by a user equipment (UE) is provided. The method generally includes selecting, from a plurality of transmission points involved in uplink (UL) coordinated multipoint (CoMP) operations with the UE, a transmission point to associate with for path loss (PL) compensation, and adjusting power of one or more transmissions based on path loss measured based on the selected transmission point.

A method and a device for sending a random access message in a wireless communication network includes: sending a first random access message based on a first retransmission configuration in a two-step random access process, in which the first random access message includes a physical random access channel (PRACH) and a physical uplink shared channel (PUSCH); and sending specified content based on a second retransmission configuration in response to meeting a condition of sending the specified content, in which the specified content is content of the first random access message in the PUSCH; the first retransmission configuration being different from the second retransmission configuration.