A method for controlling access to a radio channel in a single frequency network in which multiple base stations transmit the same data simultaneously to a user equipment, UE device, includes a first plurality of base stations transmitting a set of random access parameters of the single frequency network. The method also includes a second plurality of base stations receiving a random access preamble transmitted by the UE device. The second plurality of base stations the same or a subset of the first. The method also includes transmitting responses to the random access preamble from a third plurality of bases stations. The third plurality of base stations the same as or a subset of the second. The method also includes a fourth plurality of base stations receiving a scheduled transmission in response to the responses. The fourth plurality of base stations the same as or a subset of the third.

Provided are a method and apparatus for determining a delay compensation value, a device, and a computer-readable storage medium. The method includes: obtaining a channel frequency domain impulse response of a transmit link, where the transmit link is obtained by combining at least two hardware modules in a transmit circuit, obtaining a time domain impulse response according to the channel frequency domain impulse response, and determining a delay compensation value of the transmit link according to a preset condition and the time domain impulse response.

Provided is a radio communication technology that can achieve low latency, high reliability, and low jitter characteristics. A transmitter is configured to duplicate a packet and transmit the duplicated packets. The receiver is configured to receive the duplicated packets. The receiver is configured to transfer, to an upper layer in the receiver, a first packet (1401, 1403, 1405, 1408) that is a packet received earlier out of the duplicated packets. A transfer timing that is a timing with which the first packet (1401, 1403, 1405, 1408) is transferred to the upper layer includes at least one of: a reception timing of a second packet (1402, 1404, 1406, 1407) that is a packet received later than the first packet out of the duplicated packets; and a cyclical timing (Cycle time) corresponding to a transmission cycle of the duplicated packets.

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive an indication of a transmission power for a synchronization signal block (SSB) transmission by a base station, the indicated transmission power different than a default transmission power for SSB transmissions by the base station. The UE may determine a received power with which the SSB transmission is received at the UE. The UE may receive one or more downlink transmissions from the base station based at least in part on the received power for the SSB transmission and a difference between the default transmission power and the indicated transmission power for the SSB transmission.

A method of communicating between a rotary wing platform and a ground terminal via a satellite. The method comprises, at the rotary wing platform, receiving a forward link signal transmitted by the satellite; on the basis of the received forward link signal, estimating at least one obstruction characteristic associated with obstruction of a signal transmission path between the rotary wing platform and the satellite by one or more blades of the rotary wing platform; determining a plurality of time periods during which the at least one obstruction characteristic indicates that the signal transmission path will not be obstructed by the one or more blades of the rotary wing platform; and transmitting to the satellite a bursted carrier return link signal comprising a plurality of bursts, wherein each burst in the plurality of bursts is transmitted during one of the determined time periods.

Systems, methods, apparatuses, and computer program products for neighbor cell measurement based timing advance validation. A method may include receiving a network configuration comprising a timing advance command from a network element. The method may also include acquiring at least measurement data of a serving cell relative to a first set of neighbor cells at a first time instance, and measurement data of the serving cell relative to a second set of neighbor cells at a second time instance according to the network configuration. The method may further include performing a timing advance validity check using at least the acquired measurement data from the first time instance and the second time instance. Further, the method may include performing data transmission based on a result of the timing advance validity check.

A user equipment apparatus determines whether a transmission is received from a base station within a time window and skips measurement of a reference signal during a subsequent period, when a transmission is received from the base station within the time window. A base station apparatus configures a UE to monitor one or more reference signals associated with a beam pair link and transmits a first signal in a transmission to the UE. The base station determines whether the transmission is received at the UE within a time window and determines whether to transmit a reference signal, based on whether the transmission is received at the UE within the time window. Upon determining that the transmission was received at the UE, the base station may skip transmission of the reference signal or modify a time, a frequency, a power, and/or a reference signal offset for the reference signal.

Techniques are described for millimeter wave wireless communication. One method includes configuring a synchronization slot associated with a plurality of synchronization blocks, configuring a transmission of each synchronization block of the plurality of synchronization blocks based on the configured synchronization slot, assigning a synchronization region to a first frequency portion associated with a transmission beam of each synchronization block, assigning at least one of a data region or a control region to a second frequency portion associated with the transmission beam of each synchronization block, and transmitting a synchronization signal during the synchronization region and transmitting at least one of data signal during the data region or control information during the control region to a wireless node.

A method for controlling access to a radio channel in a single frequency network in which multiple base stations transmit the same data simultaneously to a user equipment, UE device, includes a first plurality of base stations transmitting a set of random access parameters of the single frequency network. The method also includes a second plurality of base stations receiving a random access preamble transmitted by the UE device. The second plurality of base stations the same or a subset of the first. The method also includes transmitting responses to the random access preamble from a third plurality of bases stations. The third plurality of base stations the same as or a subset of the second. The method also includes a fourth plurality of base stations receiving a scheduled transmission in response to the responses. The fourth plurality of base stations the same as or a subset of the third.

A method for controlling access to a radio channel in a single frequency network in which multiple base stations transmit the same data simultaneously to a user equipment, UE device, includes a first plurality of base stations transmitting a set of random access parameters of the single frequency network. The method also includes a second plurality of base stations receiving a random access preamble transmitted by the UE device. The second plurality of base stations the same or a subset of the first. The method also includes transmitting responses to the random access preamble from a third plurality of bases stations. The third plurality of base stations the same as or a subset of the second. The method also includes a fourth plurality of base stations receiving a scheduled transmission in response to the responses. The fourth plurality of base stations the same as or a subset of the third.