A wireless control device comprising: a communication circuit configured to receive, from a wireless device, a signal wirelessly received by the wireless device; and a control circuit configured to store a time at each reception of a given amount of signal by the communication circuit and perform wireless signal processing of transmitting and receiving a wireless signal through the wireless device, in accordance with a time calculated based on a plurality of stored times.

Embodiments of the present invention provide an uplink random access method and a related device, thereby improving the success rate of uplink random access. The method includes: determining, by UE, K available root sequences for uplink random access according to a preset policy, where a maximum quantity of detection windows of single UE that can be supported by each of the K available root sequences is 2M+1, and maximum detection windows of the single UE that can be supported by each available root sequence do not overlap with each other, where K1, M is a detection window parameter, M>1, and both K and M are integers; and performing, by the UE, uplink random access according to the k.sup.th available root sequence of the K available root sequences, where 1kK and k is an integer. The present invention is applicable to the field of wireless communications.

The present document discloses a method for determining a transmission time of a synchronization signal, a terminal, a base station, and a communication system. The method for determining the transmission time of the synchronization signal includes: receiving the synchronization signal; acquiring a time index of the synchronization signal; and determining the transmission time of the synchronization signal according to the time index. The present document also discloses a computer storage medium.

A radio device applies a carrier frequency for transmission of data between the radio device and a base station of a cellular network. Further, the radio device configures a measurement time interval in which the radio device temporarily switches from the transmission of data to receiving at least one broadcast signal conveying system information from the base station. Based on the received at least one broadcast signal, the radio device estimates an offset of the carrier frequency as applied by the radio device to a frequency of a carrier signal as received from the base station.

A method performed by a wireless transmit/receive unit (WTRU) may include receiving a configuration message including timing information for monitoring at least a subset of a plurality of beams to receive a set of synchronization signals and receiving the set of synchronization signals based on the timing information. The received set of synchronization signals include a primary synchronization signal and a secondary synchronization signal. The method may include receiving a reference signal along with a physical broadcast channel (PBCH) transmission. The reference signal comprises a sequence that is derived from an index associated with one of the at least the subset of beams and associated with the received set of synchronization signals. The method may include transmitting a random access channel (RACH) transmission. The RACH transmission includes a preamble sequence corresponding to the one of the subset of the plurality of beams.

In an embodiment, a method includes: transmitting, by a first device, a first synchronization sequence in a single synchronization channel of a plurality of channels; and after transmitting the first synchronization sequence, transmitting, by the first device, first data associated with the first synchronization sequence according to a hopping sequence using a single channel of the plurality of channels at a time.

A method performed by a base station may include transmitting a configuration message including timing information for monitoring one or more subsets of a plurality of beams to receive a set of synchronization signals. The method may include transmitting the set of synchronization signals. The received set of synchronization signals may include a primary synchronization signal and a secondary synchronization signal. The method may include transmitting a reference signal along with a physical broadcast channel (PBCH) transmission. The reference signal may include a sequence that is derived from an index associated with one subset of the one or more subsets of the plurality of beams and associated with the transmitted set of synchronization signals. The method may include receiving a random access channel (RACH) transmission. The RACH transmission may include a preamble sequence corresponding to the one subset of the one or more subsets of the plurality of beams.