A receiver and a method for receiving a radio communication is disclosed. The method includes receiving a burst encoded with a robust modulation coding scheme (MCS) as RX signals; generating, for each of the RX signals, a burst SNR, soft decision symbols and a packet; weighing, each of soft decision symbols with a respective burst SNR, to calculate soft combined symbols that are used to generate a Maximal-Ratio Combining (MRC) packet; and selecting, from the packets and the MRC packet, a CRC passed packet as an output. An adaptive dual burst transmitter is disclosed.

The present application provides a method for processing a physical resource, a user equipment, and a base station. The method for processing a physical resource includes the following steps: determining scheduled physical resource blocks (PRB) based on indication information of carrier sensing result of at least one received frequency sub-band and indication information of physical resource blocks; and receiving data on the scheduled PRBs.

This application discloses methods and apparatuses for determining precoding vector. One example method includes: determining, by a network apparatus, a precoding vector of one or more frequency domain units based on the first indication information. The first indication information is used to indicate L.sub.1 beam vectors in a beam vector set, K.sub.1 frequency domain vectors in a frequency domain vector set, and T.sub.1 space-frequency component matrices. A weighted sum of the T.sub.1 space-frequency component matrices is used to determine a precoding vector of each frequency domain unit. The T.sub.1 space-frequency component matrices are selected from M.sub.1 space-frequency component matrices corresponding to the L.sub.1 beam vectors and the K.sub.1 frequency domain vectors, each space-frequency component matrix is uniquely determined by one beam vector and one frequency domain vector.

A wireless communications system may support a large number of user equipment (UEs) and a base station may transmit resource configuration information to a group of UEs, in which the configuration information identifies the group of UEs. In some cases, the base station may receive a data transmission from a UE of the UE group that the base station cannot decode. The base station may then transmit a group-common feedback signal to the UE group. Once the transmitting UE of the UE group receives the group-common signal, the UE may re-transmit the data to the base station. By sending a group-common feedback signal, the base station may conserve resources, improve reliability and increase successful uplink transmissions from UEs.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication that a first common search space set and a second common search space set are linked for repetition of a downlink control channel that includes downlink control information associated with a random access procedure, scheduling of system information, or a paging procedure. The UE may monitor the first common search space set and the second common search space set for the downlink control information based at least in part on the indication. The UE may decode the downlink control information using at least one of a first physical downlink control channel candidate of the first common search space set or a second physical downlink control channel candidate of the second common search space set, where the first physical downlink control channel candidate is linked with the second physical downlink control channel candidate.

Some embodiments of this disclosure include apparatuses and methods for providing semi-static integrated access backhaul (IAB) resource configurations in an IAB network. For instance, a central unit (CU) of an IAB donor can provide, to a distributed unit (DU) of an IAB node, F1 application protocol (F1AP) signaling data indicative of a semi-static IAB resource configuration regarding at least one of downlink resources, uplink resources, or flexible resources. The semi-static IAB resource configuration indicates whether the at least one of downlink resources, uplink resources, or flexible resources are hard resources, soft resources, or not available resources. The CU can further provide, to a mobile termination (MT) of the IAB node, radio resource control (RRC) signaling data indicative of the semi-static IAB resource configuration.

Provided are an ultrasonic human body communication method and a device thereof, the method including dividing serial information into blocks, and each information block includes modulation bits and index bits; each transmission frame is divided into multiple groups; performing an index modulation on the groups of each transmission frame, determining activated group sequence numbers; performing a digital modulation on the modulation bits of each information block, and mapping the digitally modulated modulation bits to activated groups; for the multiple information blocks processed in parallel, performing a parallel/serial conversion, a pulse shaping, and an ultrasonic conversion in sequence to obtain a transmission signal, and transmitting the transmission signal in a human body through a transmission frame; on a receiving node, receiving a received transmission signal propagated by the human body, and demodulating the received transmission signal to obtain the index bits and the modulation bits.

A mapping unit that modulates a transmission bit sequence to generate a modulated symbol sequence, a known sequence mapping unit that modulates a known bit sequence to generate a known symbol sequence, a selection unit that selects one of the modulated symbol sequence or the known symbol sequence and outputs the selected one as a transmission symbol sequence, and a DSTBC encoder that performs differential space-time block coding on the transmission symbol sequence are included. The known sequence mapping unit generates the known symbol sequence so that a matrix obtained by differential space-time block coding performed by the DSTBC encoder is a matrix with two rows and two columns that includes 0 in the first row and the first column, −1 in the second row and the first column, 1 in the first row and the second column, and 0 in the second row and the second column.

This disclosure discloses methods and apparatuses for signal processing. In an implementation, a method comprises: generating first indication information, wherein the first indication information indicates L.sub.1 space domain vectors in a space domain vector set, K.sub.1 frequency domain vectors in a frequency domain vector set, and T.sub.1 space-frequency component matrices, wherein a precoding vector of one or more frequency domain units is determined by a weighted sum of the T.sub.1 space-frequency component matrices, wherein the L.sub.1 space domain vectors and the K.sub.1 frequency domain vectors correspond to M.sub.1 space-frequency component matrices that comprise the T.sub.1 space-frequency component matrices, wherein each of the M.sub.1 space-frequency component matrices is uniquely determined by a different combination of one of the L.sub.1 space domain vectors and one of the K.sub.1 frequency domain vectors; and sending the first indication information.

A transmission device includes: a controller configured to control a transmission scheme for each of a plurality of divisions corresponding to signals which are divided and are to be transmitted to a fronthaul; and a transmitter configured to transmit the signals to the fronthaul.