A method for frequency domain resource processing, a method for frequency domain resource configuration, and a related device are provided. The method for frequency domain resource processing includes: obtaining frequency domain configuration information, where the frequency domain configuration information includes at least one of configuration information of a guard band or configuration information of a frequency domain resource for a distributed unit (DU) of an Integrated Access Backhaul (IAB) node; and performing information transmission based on the frequency domain configuration information.

Aspects described herein relate to transmitting or receiving a demodulation reference signal (DMRS) for an antenna port over a set of multiple DMRS frequency tones in a symbol of a slot based on a DMRS configuration, and transmitting or receiving a phase tracking reference signal (PTRS) for the antenna port over a cluster of multiple PTRS frequency tones in the symbol or a different symbol of the slot, wherein the cluster of multiple PTRS frequency tones are adjacent to one another in frequency, and wherein at least one PTRS frequency tone in the cluster of multiple PTRS frequency tones is a non-zero power (NZP) PTRS frequency tone that overlaps, in frequency, at least one DMRS frequency tone in the set of DMRS frequency tones.

When signals are simultaneously received from K transmission-side apparatuses by a receiving antenna, and repetition is performed by the K transmission-side apparatuses, an information processing apparatus is configured to: in order to obtain a transmitted reference signal x(k,n) transmitted from a transmission-side apparatus k (k=1, . . . , K) by the n-th reference signal transmission in the repetition, acquire a phase rotation amount φ(g,n) given to a transmitted reference signal x(k) and assigned to a group g to which the transmission-side apparatus k belongs and transmit the phase rotation amount φ(g,n) to the transmission-side apparatus k. The phase rotation amount φ(g,n) is acquired so that received reference signals from transmission-side apparatuses not belonging to the group g are cancelled when a phase rotation amount opposite to the phase rotation amount φ(g,n) is given to a received reference signal r(n), and the first to N-th received reference signals in the repetition are added.

Various embodiments comprise systems, methods, architectures, mechanisms and apparatus providing a dual-function radar communication (DFRC) system a multiple-input multiple-output (MIMO) radar is configured to have only a small number of its antennas active in each channel use. Probing waveforms are of an orthogonal frequency division multiplexing (OFDM) type. OFDM carriers are divided into two groups, one group that is used by the active antennas in a shared fashion, and another group where each subcarrier is assigned to an active antenna in an exclusive fashion (e.g., private subcarriers). Target estimation is carried out based on the received and transmitted symbols. The system communicates information via the transmitted OFDM data symbols and the pattern of active antennas in a generalized spatial modulation (GSM) fashion. A multi-antenna communication receiver can identify the indices of active antennas via sparse signal recovery methods. The private subcarriers may be used to synthesize a virtual array for high angular resolution, and also for improved estimation on the active antenna indices.

Methods, apparatus, and systems for increasing spectral efficiency for transmissions with different numerologies. In one example aspect, a wireless communication method. The method includes operating, by a communication device, a first transmission band associated with a first numerology. The first transmission band comprises a first subcarrier spacing Δf1 and a first symbol length of T1 in time domain. The method includes operating, by the communication device, a second transmission band associated with a second numerology. The second transmission band comprises a second subcarrier spacing Δf2. The method also includes operating, by the communication device, a third transmission band positioned between the first transmission band and the second transmission band. The third transmission band comprises a subcarrier spacing equal to the second subcarrier spacing Δf2 and a symbol length equal to the first symbol length T1.

Various schemes pertaining to global cyclic shift delay (CSD) assignment for distributed-tone resource unit (dRU) transmissions in wireless communications are described. An apparatus applies a CSD index assignment in distributing a plurality of subcarriers of a resource unit (RU) over a bandwidth to generate an extremely-high-throughput short training field (EHT-STF) of a dRU. The apparatus then transmits symbols of the EHT-STF of the dRU. The CSD index assignment is based on a dRU hierarchical structure with one or more CSD indexes shared among multiple dRUs of different sizes but not among multiple dRUs of a same size.

Disclosed are techniques for wireless communication. In an aspect, a method, performed by a network node, for selection of uplink control information (UCI) transmission format, comprises determining whether to use a coherent transmission; upon determining to use a coherent transmission, selecting a coherent transmission format for UCI transmission. Upon determining not to use a coherent transmission the method further includes determining whether to use an orthogonal sequence: upon determining to use an orthogonal sequence, the method includes selecting a non-coherent transmission format with an orthogonal sequence for UCI transmission; upon determining not to use an orthogonal sequence, the method includes selecting a non-coherent transmission format with a non-orthogonal sequence for UCI transmission. The method further includes using the selected format for UCI transmission. For example, a base station may send the selected format for UCI transmission to a UE, or a UE may select and use the UCI transmission format.

The present invention is designed so that, even when a sequence-based uplink control channel is used, uplink control information is reported properly. A user terminal according to one aspect of the present invention has a control section that determines signals to transmit in a frequency resource for transmitting uplink control information, and a transmission section that transmits the signals in the frequency resource, and, when the signals include a signal sequence to use an orthogonal resource that is associated with the uplink control information, the control section assumes that a bandwidth of the frequency resource is equal to or greater than a predetermined bandwidth.

When arranging a reference signal generated by a pseudorandom number on specified time and frequency, an information processing unit (101) determines whether or not to arrange a 1 OFDM symbol or 2 OFDM symbols including a reference signal at a position determined in each slot, and determines whether or not to additionally arrange an OFDM symbol including a reference signal in the same slot. A multiplexing unit (108) performs multiplexing of a reference signal in accordance with the determination by the information processing unit (101).

Methods and apparatuses for performing wake-up radio (WUR) are described herein. A receiving device may comprise a receiver configured to receive a first preamble using a first frequency range. The receiver may be configured to receive, using the first frequency range, a WUR packet after the first preamble, wherein a bandwidth associated with the first WUR packet is smaller than a bandwidth associated with the first preamble. The receiving device may be further configured to receive a second preamble and a second WUR packet, wherein the first preamble is frequency division multiplexed with the second preamble and the first WUR packet is frequency division multiplexed with the second WUR packet, and wherein a bandwidth associated with the second WUR packet is smaller than a bandwidth associated with the second preamble. The first WUR packet and the second WUR packet may have an equal duration of transmission.