This application relates to the field of communication technologies, and discloses a communication method and apparatus. On example method includes: a backscatter device receives an excitation signal from an exciter. The backscatter device determines a backscatter signal pattern in a backscatter signal pattern set, where the backscatter signal pattern set includes a plurality of backscatter signal patterns, and backscatter reference signals in the plurality of backscatter signal patterns do not overlap in time domain. The backscatter device modulates a backscatter reference signal and a backscatter data signal on the excitation signal based on the determined backscatter signal pattern, to obtain a backscatter signal. The backscatter device sends the backscatter signal to a receiver.

Accordingly, the embodiment herein is to provide a method for resource allocation, by a server (100a), in multiple Band Width Part (BWP) system. The method includes receiving a plurality of data packets from a network device for transmission to a UE (100b). Further, the method includes determining a plurality of network parameters associated with the network device, the UE (100b), and the plurality of received data packets. Further, the method includes grouping the plurality of received data packets based on the plurality of network parameters. Further, the method includes allocating a BWP and/or sub-carrier spacing to each grouped data packets based on the plurality of network parameters. Further, the method includes sending the plurality of group data packets using the allocated BWP and/or the allocated subcarrier spacing.

The present disclosure relates to a method and apparatus for receiving signal, which belong to the field of a communication technology. The method comprises the following steps: determining a first frequency domain position and a second frequency domain position; determining a first frequency resource allocated for the first subcarrier spacing and a second frequency resource allocated for the second subcarrier spacing in the frequency band; receiving the signal on the first frequency resource according to the first frequency domain position, and receiving the signal on the second frequency resource according to the second frequency domain position. According to the method and apparatus, expanded service demands of a terminal can be met.

Wireless communications may comprise communications between a base station and a wireless device. The base station may send and/or schedule one or more transmissions to the wireless device that may overlap in time. The wireless device may receive and/or decode overlapping transmissions that are associated with a different indication and/or the wireless device may not receive at least one of overlapping transmissions that are associated with the same indications.

Methods, systems, and devices for wireless communications (e.g., vehicle to everything systems) are described relating to an adaptive design of demodulation reference signals (DMRS) density based on user equipment (UE) velocity. A UE may send assistance information to a transmitting UE to help identify a DMRS pattern based on the relative speed between the two UEs. Also, the transmitter may determine the adaptive DMRS pattern based on its speed without information of the receiver's speed. The transmitter may indicate the adaptive DMRS pattern in control information to the receiver. A base station may receive assistance information, and the base station may determine the adaptive DMRS pattern to be used by the transmitting UE based on the received assistance information and then indicate the adaptive DMRS pattern to the transmitting UE. A UE may determine an adaptive DMRS pattern to use based on feedback from the receiving UE.

An apparatus, implemented in a user equipment (UE), transmits a report of a per-span based capability of the UE to a network node of a wireless network. The apparatus also performs physical downlink control channel (PDCCH) monitoring using a configuration that satisfies a requirement for a gap separation with respect to spans for at least one candidate value set in the report in every slot including cross-slot boundaries.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may map a plurality of resource elements from an orthogonal frequency division multiplexing (OFDM) resource structure to respective time-domain samples of a plurality of time-domain samples included in a single-carrier resource structure. The BS may transmit the plurality of time-domain samples to a user equipment (UE). Numerous other aspects are provided.

A method of transmitting data by a transmitter to a receiver in a wireless communications network. The method comprises receiving data for transmission to the receiver via a communications channel, dividing the data into portions for transmission, receiving, for each of the portions of data, an indication of channel information from the receiver for use by the transmitter in determining values for one or more communications parameters with which the portion of data should be transmitted, determining the values for the one or more communications parameters based on the received channel information, dynamically generating, for each of the portions of data, a waveform representative of the portion of data, and transmitting each of the portions of data, using the generated waveform representations and in accordance with the values of the one or more communications parameters, to the receiver.

Methods, systems, and devices for wireless communications are described. In some cases, a user equipment (UE) may transmit, to a base station, a report indicating a capability of the UE to support symbol level quantization, slot level quantization, or both. The UE may identify that the UE is to utilize the slot level quantization For instance, the UE may receive control signaling indicating that the UE is to utilize slot level quantization and may perform the identifying based on receiving the control signaling The UE may receive a first transmission via a first channel and may communicate, responsive to receiving the first transmission, a second transmission via a second channel at a quantized start timing determined in accordance with the slot level quantization.

The present application discloses a method and a device in a node for wireless communications. A node receives first information, the first information being used to determine a target cell, the target cell scheduling a characteristic cell; monitors M Control Resource Elements in a first time window, the M Control Resource Elements being occupied by a control channel candidate; a sub-band to which any of the M Control Resource Elements belongs in frequency domain belongs to a first sub-band set; a serving cell to which any sub-band comprised in the first sub-band set belongs is in the scheduling cell set; a subcarrier spacing of a subcarrier comprised in the first sub-band set is equal to a first subcarrier spacing; the first subcarrier spacing is used to determine a time length of the first time window. The present disclosure guarantees the reception of scheduling.