Abstract: Methods, systems, and devices for wireless communications supporting techniques for enhanced line-of-sight (LOS) communications with analog multi-path beamforming are described. A first wireless device may receive, from a second wireless device, an indication of a capability of the second wireless device to concurrently transmit first signaling in a first analog beamforming direction using a first transmission configuration indicator (TCI) state corresponding to a LOS mode, and second signaling in a second analog beamforming direction using a second TCI state corresponding to an indirect LOS mode. The first wireless device may then receive, from the second wireless device, a first downlink message in the first analog beamforming direction using the first TCI state concurrently with a second downlink message in the second analog beamforming direction using the second TCI state.

Abstract: A method for channel switching by a secondary node. The method includes: receiving, from a primary node, a downlink transmission, measuring one or more statistics about the downlink transmission, determining, from the downlink transmission, an uplink interval, transmitting, to the primary node during the uplink interval, the measured one or more statistics about the downlink transmission, receiving, from the primary node, an indication of a set of useable channels, determining, based on the set of useable channels and at least one of the primary node or the secondary node, a next channel from the set of useable channels, and switching to the next channel based on a switch indication from the primary node.

Abstract: According to one aspect there is provided an audio system 10 comprising a transmission unit 100 and a plurality of speaker units 110-1, 110-2, 10-N, wherein the transmission unit 100 comprises a controller 101 and a wireless communication interface 103 arranged for communication according to an IEEE 802.11 standard (WiFi™), wherein the controller 101 is configured to: receive an audio data package to be played back; and to transmit the audio data package to be played back over the wireless communication interface 103 utilizing the same protocol for the transmission of the audio data package and for synchronizing the playback of the audio data, and wherein each of plurality of the speaker units 110-1, 110-2, 10-N comprises a controller 111, a PCM 111-1, a speaker element 114 and a wireless communication interface 113 arranged for communication according to an IEEE 802.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of at least one of: one or more anchor cells associated with a target cell, or one or more target cells, including the target cell, associated with an anchor cell included in the one or more anchor cells. The UE may transmit, to the anchor cell, an indication of the target cell and an indication of a target beam index associated with the target cell as part of an initial access procedure with the anchor cell. The UE may establish a connection with the target cell based at least in part on performing the initial access procedure with the anchor cell. Numerous other aspects are described.

Abstract: Time of day (ToD) registers provide respective virtual ToDs corresponding to the occurrence of edges of input clock signals being supplied to an integrated circuit. The integrated circuit generates a heartbeat clock signal having a frequency higher than a SYNC signal and time stamps the heartbeat clock signal to generate heartbeat time stamps. The heartbeat time stamps are used along with the time stamps of the input clock signals to determine the time of day corresponding to occurrences of edges of the input clock signals.

Abstract: A method for establishing synchronization relationship, a chip, an electronic device, and a non-transitory computer-readable storage medium are provided. The method includes the following. A synchronization pulse of the master device is initiated according to a pulse period preset. A start time of a K1th synchronization pulse and a start time of a K2th connection event of a slave device are obtained, and an offset time is obtained according to the start time of the K1th synchronization pulse and the start time of the K2th connection event. First synchronization information is transmitted to the slave device for the slave device to start a local synchronization pulse synchronized with the synchronization pulse of the master device according to the first synchronization information. The first synchronization information carries a count value K1, a count value K2, the offset time, and the pulse period.

Abstract: Millimeter-wave (mmWave) and sub-mmWave technology, apparatuses, and methods that relate to transceivers and receivers for wireless communications are described. The various aspects include an apparatus of a communication device including an antenna array and processing circuitry coupled to the antenna array. The processing circuitry is configured to initialize a beam tracking algorithm based on received signals received at the antenna array, wherein antenna phases used in the beam tracking are bound by an upper phase limit and a lower phase limit, to generate a beam tracking result. The processing circuitry is further configured to generate a calibration vector based on the beam tracking result and receive subsequent transmissions using a codebook adapted based on the calibration vector.

Abstract: A wireless device may receive one or more configuration parameters. The one or more configuration parameters indicate: one or more physical uplink control channel (PUCCH) resources, and a default beam is used for physical uplink shared channel (PUSCH) transmissions. The wireless device may receive downlink control information (DCI), with DCI format 0_0, scheduling a PUSCH. The wireless device may transmit, via the PUSCH, a transport block according to a default spatial relation in response to: a DCI format of the DCI being the DCI format 0_0, the configuration parameters indicating that the default beam is used, each PUCCH resource of the one or more PUCCH resources not being configured with a spatial relation, and the wireless device being in a radio resource control (RRC) connected mode.

Abstract: A method, system, network node and wireless device are disclosed for beam selection priority in a wireless communication system are disclosed. According to one aspect of the disclosure, a wireless device is provided. The wireless device is provided with different beam indications for reception of at least a first signal and a second signal. The wireless device includes processing circuitry configured to receive the first signal of a first signal type on a beam indicated by one of the beam indications, the first signal type having a higher priority than a second signal type of the second signal.

Abstract: A computer-implemented method comprising: monitoring transmissions representing estimation of a wireless channel, between at least one wireless access point (AP) and a plurality of wireless stations (STAs); at a training stage, training a machine learning model on a training dataset comprising: (i) a plurality dataframes of a standard beamforming protocol associated with at least some of the monitored transmissions, and (ii) labels indicating an association between the dataframes and the STAs; and at an inference stage, applying the trained machine learning model to a target transmission representing estimation of a wireless channel, to predict whether the target transmission was transmitted from one of the STAs.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a capability message indicating at least one of parameters associated with one or more beam management features or whether the UE supports the one or more beam management features, the one or more beam management features including a unified transmission configuration indicator (TCI) state, inter-cell beam measurements, antenna-panel-specific uplink transmissions, or multiple transmission reception point (TRP) beam failure recovery. The UE may receive configuration information for at least one beam management feature based at least in part on transmitting the capability message. Numerous other aspects are provided.

Abstract: An amplitude detector has a phase shifter such as one using an analog differentiator and an adjustable gain stage, or one using a determinable delay, the phase shifter coupled to shift phase of an input signal to the amplitude detection apparatus. The detector also has a first analog multiplier coupled to square the input signal, a second analog multiplier coupled to square output of the phase shifter; and an analog adder coupled to sum outputs of the first and second analog multiplier. An automatic gain control circuit has the amplitude detector coupled to control gain of a controllable amplifier.

Abstract: Systems, methods, apparatuses, and computer program products for channel state information (CSI) configuration and reporting for multi-transmission reception point (TRP) operation are provided. One method may include configuring a user equipment (UE), by a network node, to provide independent channel state information (CSI) feedback per transmission reception point (TRP) and to indicate additional information. The configuring of the UE may include configuring the UE with at least one of several reporting options for generating a combined channel state information (CSI) report.

Abstract: There is provided an apparatus, said apparatus comprising means for receiving at least one signal from at least one transmitter; determining at least one parameter of the at least one signal; determining, based on the at least one parameter, which of a plurality of stored differential signal reception radiation patterns the received signal corresponds to, each of the plurality of stored radiation patterns associated with a direction of arrival; and aligning an antenna beam to the transmitter based on the direction of arrival associated with the determined stored differential signal reception radiation pattern.

Abstract: Introduced here is at least one technique to better estimate interference at a receiver. The technique includes receiving a plurality of reference signals, which each have information indicative of noise. Thus, the technique further includes, for each reference signal, determining a noise estimation and determining a distance metric and log-likelihood ratio (LLR) of the noise estimation. Once the distance metric and LLR of each reference signal is determined, the receiver can determine a final LLR based on the distance metric and LLR of each reference signal. In this manner, a final LLR is determined. This technique can be applied by any device operating on MIMO technology.

Abstract: Aspects described herein include devices and methods for smart ultra wideband transmissions. In one aspect, an apparatus includes pulse generation circuitry configured to output a plurality of transmission (TX) pulse samples at a selected signal sample rate, where each pulse sample of the plurality of TX pulse samples comprises a value associated with a pulse amplitude at a corresponding sample time The apparatus includes a plurality of power amplifier (PA) cells, with each PA cell of the plurality of PA cells comprising a corresponding current source and associated gates, and where the associated gates of a PA cell are selectable to configure an on state and an off state. Logic circuitry of the apparatus is configured to set the on state or the off state for each PA cell.

Abstract: The present disclosure is related to a Long Training Field (LTF) signal used in a wireless local area network (WLAN) system. The LTF signal may be generated by a transmitting station (STA) and received by a receiving STA. The LTF signal may be included in a physical protocol data unit (PPDU), and the PPDU may be transmitted an 80 MHz band. The LTF sequence may include at least two parts, i.e., a first LTF sequence and a second LTF sequence.

Abstract: Disclosed are a user detection technique, and a method and apparatus for channel estimation in a wireless communication system supporting massive multiple-input multiple-output.

Abstract: An example system includes: interleaving circuitry including a data input, a plurality of data outputs, and a plurality of clock inputs, the data input coupled to the received data input and each of the plurality of clock inputs coupled to one of the plurality of receiver clock outputs; and handoff circuitry coupled to the interleaving circuitry, the handoff circuitry including: comparison circuitry coupled to the clock generation circuitry and configured to compare the plurality of receiver clocks to the transmission clock; clock configuration circuitry coupled to the comparison circuitry and configured to select one of the plurality of receiver clocks based on the comparison circuitry; and a plurality of flip-flops coupled to the clock configuration circuitry and configured to convert the plurality of data outputs from the plurality of receiver clocks to the transmission clock to generate a plurality of transmission data streams based on the one of the plurality of receiver clocks selected by the clock conf

Abstract: Apparatuses and methods for composite beam paring in a wireless communication system. A method includes identifying, based on one or more user equipment (UE) reports, information on a plurality of narrow beams; determining beam correlation information for the plurality of narrow beams based on the one or more UE reports; and determining pairs of narrow beams from among the plurality of narrow beams based on the correlation information.