Certain aspects of the present disclosure provide techniques for low complexity physical downlink channel. A method that may be performed by a user equipment (UE) includes determining one or more policies for monitoring one or more physical downlink control channels (PDCCHs) within one or more bandwidth parts (BWPs) for a first type of UE, wherein the one or more policies for the first type of UE are different from a set of policies for a second type of UE; and monitoring for signals from a network entity via the one or more PDCCHs according to the determined policies.

This application provides a method and an apparatus for determining a frequency-domain offset, a communication device, and a readable storage medium. The method includes: detecting a synchronization signal block SSB; and determining, based on a first indicator field and/or a second indicator field in the SSB, a frequency-domain offset of the SSB with respect to a common resource block raster, where the first indicator field is an SSB frequency-domain offset indicator field, and the second indicator field is part or all of at least one indicator field different from the first indicator field.

An OFDM modulation device includes a communication use specifying unit to specify a communication use of a communication frame, a header generating unit to generate a header of the communication frame in which communication use specifying information indicating the communication use specified by the communication use specifying unit is stored, a payload generating unit to generate a payload of the communication frame, and an inverse fast Fourier transform unit to generate a communication frame of time domain by executing an inverse fast Fourier transform of a size corresponding to the communication use specified by the communication use specifying unit on data of frequency domain including the header generated by the header generating unit and the payload generated by the payload generating unit.

A repeater BWP switching schedule is provided for a repeater that is responsive to a user equipment BWP switching schedule. Should the repeater support a plurality of active user equipments, the user equipment BWP switching schedule is a superset of the BWP switching schedule for each individual user equipment. The repeater BWP switching schedule may thus be more granular than the UE BWP switching schedule.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of a subcarrier spacing (SCS) for communications in a transmission time interval (TTI), such as a half-subframe, including multiple symbols, corresponding cyclic prefixes, and a padding duration which is at least as long as a symbol duration. The UE may receive a configuration for the padding duration, indicating that at least a portion of the padding duration is reallocated for a reference signal that indicates waveform parameters for one or more symbols of the TTI after the padding duration. The UE may receive the reference signal indicating the waveform parameters during the portion of the padding duration and communicate during the one or more symbols of the TTI according to the waveform parameters.

A method performed by a UE is provided. The method includes receiving a first DCI format for scheduling at least one HARQ-ACK codebook in at least one first PUCCH in at least one first slot; receiving a second DCI format in a second slot, the second DCI format (i) for scheduling a retransmission of the HARQ-ACK codebook in a second PUCCH and (ii) indicating a first slot offset; and transmitting the first HARQ-ACK codebook scheduled in one of the at least one first slot via the second PUCCH. If the first slot offset is a positive value, the first slot is determined by counting backward a number of slots indicated by the first slot offset from the second slot. If the first slot offset is a negative value, the first slot is determined by counting forward the number of slots indicated by the first slot offset from the second slot.

Certain aspects of the present disclosure provide techniques for time aligning full-duplex communications. A method that may be performed by a base station (BS) includes transmitting, to a first user equipment (UE): an indication of a first uplink timing advance (TA) determined based on a first propagation delay between the BS and the first UE, and an indication of a first cyclic prefix (CP) length determined based on the first uplink TA. In certain aspect, the method also includes transmitting, to the first UE, a first downlink communication comprising a downlink CP, during a first time window comprising a plurality of time periods.

In an 802.11az wireless system, a first station device transmits an NDP PPDU data unit in accordance with a range measurement packet exchange by constructing the NDP PPDU data unit to include an uplink (UL) length field element or a legacy signal length (LLEN) field element derived from a specified number of symbols (N.sub.HE-LTF) and number of repetitions (N.sub.LTF-REP) for the NDP PPDU data unit, and then sending the NDP PPDU data unit to a second STA device, where the values of the UL-length and LLEN field elements are computed as UL-Length=LLEN=10+y+6*Σ.sub.i=1.sup.NUM_USERS((N.sub.LTF-REP(i)+1)*N.sub.HE-LTF(i)), where y=0 for NTB I2R/R2I NDP and TB R2I NDP PPDUs, and where y=3 for TB-I2R NDP PPDUs.

The guard-space reference disclosed herein is a signal transmitted in the guard spaces separating message data intervals, and configured to reveal amplitude noise or phase noise or both, using 5G or 6G technology. For example, the transmitter can transmit an I-branch with a predetermined amplitude level, and an orthogonal Q branch with zero amplitude, in the guard space. The receiver can measure the received amplitude and phase of the guard-space reference, subtract the initial amplitude and phase, and thereby measure both phase noise and amplitude noise. The receiver can then subtract the measured amplitude and phase effects from the message data, thereby negating both phase noise and amplitude noise. Guard-space references disclosed herein can preserve the inter-subcarrier orthogonality, inter-symbol separation, and signal circularity advantages of prior art, while additionally providing both amplitude noise and phase noise mitigation. Examples are suitable for wireless standards.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) or a base station may generate a discrete Fourier transform (DFT) waveform from separate DFT inputs of data content, a guard interval (GI) sequence, and tail suppression samples. The UE or the base station may generate a first communication with the DFT waveform using an inverse fast Fourier transform (IFFT) operation. The first communication may include, in a time domain, a data signal corresponding to the data content and a GI-based tail signal that corresponds to the GI sequence and that is suppressed with a tail suppression signal based at least in part on the tail suppression samples. The UE or the base station may transmit the first communication. Numerous other aspects are described.