Embodiment of this application provide methods and apparatuses for communicating downlink control information. One method includes: dividing, by a terminal device, target resources into M resource subsets; determining, by the terminal device, a resource set from the M resource subsets, wherein the resource set consists of N control channel bearing resource units, N≥2, at least two of the N control channel bearing resource units belong to different resource subsets of the M resource subsets, and at least two of the N control channel bearing resource units are not consecutive in the frequency domain, wherein each of the N control channel bearing resource units includes at least two resource element groups (REGs) that are consecutive in the frequency domain, and wherein each REG of the at least two REGs comprises a plurality of resource elements (REs); and receiving, by the terminal device, downlink control information on the resource set.

A method and system of communicating between a plurality of nodes are provided. The plurality of nodes are part of a cooperative broadcast multi-hop network that employs broadcast flood routing and multi-hop transmission using a direct-sequence spread-spectrum (DSSS) waveform.

A method and system of communicating between a plurality of nodes are provided. The plurality of nodes are part of a cooperative broadcast multi-hop network that employs broadcast flood routing and multi-hop transmission using a direct-sequence spread-spectrum (DSSS) waveform.

A method for wireless communication in a reflective environment includes (a) receiving first wireless signals at a first antenna assembly at least partially via a first reflective environment, (b) generating a first electrical signal from a first antenna element of the first antenna assembly in response to the first wireless signals, the first antenna element having a first polarization, (c) generating a second electrical signal from a second antenna element of the first antenna assembly in response to the first wireless signals, the second antenna element having a second polarization different from the first polarization, (d) shifting phase of at least one of the first electrical signal and the second electrical signal, and (e) after shifting phase, combining at least the first electrical signal and the second electrical signal to generate a combined electrical signal.

A radio-frequency front-end architecture can include a quadplexer configured to support uplink carrier aggregation with a first antenna. The quadplexer can include a low-band filter, a mid-band filter, a first high-band filter, and a second high-band filter, with each filter having a respective input node, and the quadplexer including a common output node associated with the first antenna. The front-end architecture can further include a triplexer configured to support uplink carrier aggregation with a second antenna. The triplexer can include a mid-band filter, a first high-band filter, and a second high-band filter, with each filter having a respective input node, and the triplexer including a common output node associated with the second antenna.

Aspects described herein relate to receiving, over downlink resources allocated in one or more symbols used for full-duplex communications, a first set of resource blocks having a first reference signal configuration that is different in at least one of uniformity or density, in frequency, of resource elements indicated for receiving a reference signal than a second reference signal configuration. At least a first number of resource elements in the first set of resource blocks can be calculated based on the first reference signal configuration, which can facilitate determination of transport block size for decoding downlink communications. Another aspect relates to transmitting according to the first reference signal configuration and/or second reference signal configuration.

Aspects described herein relate to receiving, over downlink resources allocated in one or more symbols used for full-duplex communications, a first set of resource blocks having a first reference signal configuration that is different in at least one of uniformity or density, in frequency, of resource elements indicated for receiving a reference signal than a second reference signal configuration. At least a first number of resource elements in the first set of resource blocks can be calculated based on the first reference signal configuration, which can facilitate determination of transport block size for decoding downlink communications. Another aspect relates to transmitting according to the first reference signal configuration and/or second reference signal configuration.

A base station can prevent deterioration of data channel application control accuracy due to influence of transmission power control to a control channel. In the base station, each encoding section performs encoding processing to an SCCH (Shared Control Channel) of each mobile station, each modulating section performs modulation processing to the encoded SCCH, an arranging section arranges the SCCH to each mobile station to one of a plurality of subcarriers which configure an OFDM symbol, and transmission power control section controls transmission power of the SCCH based on reception quality information reported from each mobile station. The arranging section arranges a plurality of the SCCH to be under transmission power control to one of the subcarriers so that combinations at resource blocks are the same.

A base station can prevent deterioration of data channel application control accuracy due to influence of transmission power control to a control channel. In the base station, each encoding section performs encoding processing to an SCCH (Shared Control Channel) of each mobile station, each modulating section performs modulation processing to the encoded SCCH, an arranging section arranges the SCCH to each mobile station to one of a plurality of subcarriers which configure an OFDM symbol, and transmission power control section controls transmission power of the SCCH based on reception quality information reported from each mobile station. The arranging section arranges a plurality of the SCCH to be under transmission power control to one of the subcarriers so that combinations at resource blocks are the same.

Transmission quality is improved in an environment in which direct waves dominate in a transmission method for transmitting a plurality of modulated signals from a plurality of antennas at the same time. All data symbols used in data transmission of a modulated signal are precoded by hopping between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol in the frequency domain and the time domain all differ. A modulated signal with such data symbols arranged therein is transmitted.