Abstract: Methods, systems, and devices for wireless communications are described. Techniques for implementing positioning schemes based on a waveform report are described. A wireless device may receive a waveform reporting request instructing the wireless device to measure a waveform. The wireless device may identify a set of reporting parameters for sampling the waveform, receive the waveform, and generate samples of the waveform based on the set of reporting parameters. The wireless device may transmit a waveform report that is generated based on the samples.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration signal from a network entity, the configuration signal indicating a configuration for a first positioning reference signal. The UE may determine one or more properties associated with the first positioning reference signal based on the configuration signal. The UE may bypass at least one portion of a transmit chain associated with a scheduled transmission of the first positioning reference signal or a receive chain associated with a scheduled reception of a second positioning reference signal. The UE may then activate, after an end of the transmission or the reception, the at least one portion of the transmit chain associated with the scheduled transmission of the first positioning reference signal or the receive chain associated with a scheduled reception of the second positioning reference signal.

Abstract: Aspects of the present disclosure provide techniques and apparatus for wireless communication. In one aspect, a method may be performed by a wireless device such as a user equipment (UE) and generally includes: receiving at least one downlink (DL) signal from one or more base stations or transmitting at least one uplink (UL) positioning reference signal (PRS), the received at least one DL signal comprising: at least one DL PRS, at least one synchronization signal block (SSB), at least one system information block (SIB), at least one other reference signal comprising a channel state information reference signal (CSI-RS), or a combination thereof, wherein at least one measurement is performed based, at least in part, on the received at least one DL signal or the transmitted at least one UL PRS; and performing at least one adjustment for random access based, at least in part, on the at least one measurement.

Abstract: Disclosed are techniques for determining a position of a user equipment (UE). A differential round-trip-time (RTT) based positioning procedure is proposed to determine the UE position. In this technique, the UE position is determined based on the differences of the RTTs between the UE and a plurality of base stations. The differential RTT based positioning procedure has much looser inter-gNodeB timing synchronization requirements than the OTDOA technique and also has much looser group delay requirements than traditional RTT procedures.

Abstract: Apparatuses and methods are disclosed for determining a transport block size (TBS) as a function of various parameters without cyclic dependencies between the parameters and TBS. The disclosed function can determine a TBS in a single pass, and the determined TBS allows the use of code blocks with equal code block size (CBS) in a transport block segmentation process. The determined TBS can provide byte-aligned code block lengths and require no padding bits in a transport block.

Abstract: Disclosed are techniques for signaling of reception-to-transmission measurements from gNBs and user equipments (UEs) for round trip time (RTT) based positioning in wireless networks such as new radio (NR). In multi-RTT positioning, the flow of messages that are exchanged differ depending on the entity acting as the location server determining the position of the UE.

Abstract: Methods, systems, and devices for encoding and decoding are described. To encode a vector, an encoder allocates information bits of the vector to channel instances of a channel that are separated into groups. The groups may vary in size and allocation of the information bits is based on a base sequence of a given length. During decoding, a decoder assigns different bit types to channels instances by dividing a codeword into a plurality of groups and assigning bit types to channel instances of the plurality of groups using the base sequence.

Abstract: Wireless communications systems and methods related to downlink (DL) control channel communications are provided. A wireless communication device identifies a search space set including a plurality of PDCCH candidate search spaces for a downlink control channel. The wireless communication device determines that a first resource associated with a first PDCCH candidate search space of the plurality of PDCCH candidate search spaces overlaps with a preconfigured resource. The wireless communication device monitors for a downlink control message over the downlink control channel by excluding monitoring in at least the first PDCCH candidate search space based on the determining.

Abstract: Aspects described herein relate to receiving a configuration indicating multiple association rules associating random access preambles and payload formats, selecting, as part of a random access procedure, a random access preamble from the random access preambles for transmitting over a random access occasion, determining, based at least in part on at least one of the association rules in the configuration, a payload format associated with the random access preamble and a corresponding payload resource unit, and transmitting the random access preamble over the random access occasion and, according to the payload format, an associated payload over the corresponding payload resource unit. Multiplexing of payload resource units with same or different payload formats can be performed in time, frequency and code domains, based on the received configuration.

Abstract: Methods, systems, and devices for wireless communications are described. In some systems (e.g., non-beam related channel state information (CSI) reporting), a CSI processing unit (CPU) may process CSI calculations for a CSI report. A user equipment may have a set number of CPUs. In some cases, there may not be enough CPUs available to process a CSI report for each CSI-RS due the CPU capability of the UE. In such cases, the UE may select a subset of the CSI-RSs to generate an extrapolated CSI report. To extrapolate, the UE may measure channel conditions of at least some pre-configured number (e.g., at least two) of CSI-RSs and determine the channel condition of a point later in time and report this extrapolation in a CSI report to the base station. A base station may schedule future data transmissions with the user equipment based on the extrapolated CSI report.

Abstract: Aspects of the disclosure provide for a thin control channel structure that can be utilized for a variety of purposes including, for example, enabling the multiplexing of two or more data transmission formats. In another example, the thin control channel can be utilized to carry control information that relates to interference experienced by a user. By utilizing this control information on a thin control channel, the network can take suitable action to mitigate the interference. Other aspects, embodiments, and features are also claimed and described.

Abstract: Aspects of the present disclosure provide for opportunistic uplink transmissions within a slot. In some examples, after scheduling all regular uplink transmissions within a current slot, a base station (e.g., gNB) may identify a set of unused uplink resources within the current slot and generate and transmit unused resource information identifying the set of unused resources to the user equipment (UE) within the cell served by the base station. If a particular UE is configured to operate in an opportunistic mode, the UE may utilize the unused resource information to generate and transmit an opportunistic uplink transmission within the set of unused uplink resources.

Abstract: Systems, methods, apparatuses, and computer-program products for performing dynamic bandwidth switching between control signals and data signals of differing bandwidths are disclosed. A mobile device receives a control signal having a first bandwidth. The mobile device receives a data signal having a second bandwidth different from the first bandwidth. The control signal and the data signal are received over a single carrier frequency. The data signal is transmitted after the control signal such that the data signal and control signal are separated by a time interval. The time interval is based on a switching latency of the mobile device.

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for optimizing delivery of a transport block (TB) using code rate dependent segmentation.

Abstract: Wireless communications systems may support flexible waveform configuration for autonomous uplink transmissions. A base station may transmit broadcast signaling (e g , a system information block (SIB)) indicating waveform configuration information for an autonomous uplink transmission by a user equipment (UE). In some cases, the broadcast signaling may include a waveform configuration field (WCF) that may indicate whether flexible waveforms for autonomous uplink are supported, may configure a waveform type, may indicate waveform configuration mapping rules, etc. As such, a UE may identify whether flexible waveform configuration for autonomous uplink is supported, and may determine waveform types for autonomous uplink transmissions based on waveform type configuration information from a base station (e.g., which may include an indication of whether flexible waveform configuration is supported, an indication of waveform type/scenario mapping rules, etc.

Abstract: Aspects of the present disclosure describe determining an uplink channel raster for determining frequency location of an uplink channel over which to transmit uplink communications to a base station. Uplink communications can be transmitted to the base station over the uplink channel. The uplink channel raster can be shifted, in frequency, with respect to a legacy uplink channel raster of a legacy communication technology to facilitate coexistence, in an uplink carrier, of the uplink channel and one or more uplink channels of the legacy communication technology.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine at least one of a downlink path loss value or an uplink path loss value associated with a base station; receive system information, a semi-persistently configured grant via RRC or a dynamic uplink grant via DCI from the base station, wherein the RRC signaling or the dynamic uplink grant identifies a power control value associated with one user or a plurality of users associated with the base station; and determine a transmit power for a data or control transmission based at least in part on at least one of the downlink path loss value or the uplink path loss value and the power control value. Numerous other aspects are provided.

Abstract: Various designs for implementing bandwidth part (BWP) full-duplex (FD) are discussed. A base station serving a plurality of user equipments (UEs) over a component carrier bandwidth (CC BW) receives a reference signal from a UE while transmitting downlink traffic to another UE over a part of the CC BW. The base station determines, based on the reference signal, a level of interference on transmissions over the part of the CC BW, and, based at least in part on interference cancelation capabilities of the base station and the level of interference, at least one portion of the CC BW for full-duplex operations. The base station activates full-duplex operations for the at least one portion of the CC BW, which includes receiving from the UE while transmitting to another UE over the same portion of the CC BW. Other aspects and features are also claimed and described.

Abstract: Disclosed are techniques for measuring round trip times (RTTs) between a user equipment (UE) and a plurality of transmission-reception points (TRPs). In an aspect, the UE receives a positioning configuration message from a TRP, measures a time of arrival (TOA) of each of a plurality of positioning signals from the plurality of TRPs, and transmits, to the TRP, a RACH positioning Message A on uplink resources defined in the positioning configuration message, and receives, from the TRP, a RACH positioning Message B subsequent to transmitting the RACH positioning Message A, wherein the RACH positioning Message A includes a first plurality of positioning measurements corresponding to the plurality of TRPs, the RACH positioning Message B includes a second plurality of positioning measurements corresponding to the plurality of TRPs, or any combination thereof.

Abstract: Disclosed are techniques for generating a positioning beacon sequence suitable for use in a wireless network that utilizes beamformed communication. More particularly, the positioning beacon sequence may be generated based on a first sequence that depends on a link identifier and does not depend on a beam index assigned to a beam used to transmit the positioning beacon in combination with a second sequence that depends on the beam index and does not depend on the link identifier. For example, the first sequence and the second sequence may be XORed to obtain the final beacon sequence, or the first sequence and the second sequence may be modulated and multiplied to obtain the final beacon sequence. Furthermore, in practice, the beacon sequence may be generated using a pseudo-random sequence generator initialized with a seed in which the link identifier and the beam index are treated as separate subcomponents.