Abstract: Calibration in distributed multiple input multiple output (MIMO) networks. A method performed by a first base station (BS) includes receiving a first uplink (UL) reference signal (RS) and determining, based on the first UL RS and a second UL RS, a first phase offset for transmission of a first downlink (DL) RS to a user equipment (UE). The second UL RS is associated with a second BS. The first phase offset of the first DL RS is relative to a second DL RS associated with the second BS. The method further includes transmitting the first DL RS with the first phase offset; receiving UE feedback associated with the first DL RS and the second DL RS; and determining, based on the first phase offset and the received feedback, for a DL data transmission to the UE, a second phase offset between transmissions of the first BS and the second BS.

Abstract: Methods and apparatuses for modular MIMO system and CSI feedback in a wireless communication system. The methods and apparatuses include: identifying configuration information of an antenna system including antenna modules for a MIMO operation; identifying, based on the configuration information, a number of collocated antenna groups that each includes one or more of the antenna modules; identifying, based on the configuration information, a number of the antenna modules for each type of the antenna modules in each of the collocated antenna groups, wherein each of the collocated antenna groups includes one or more types of the antenna modules; generating a CSI report for one or more of the collocated antenna groups in the antenna system; and transmitting, to a BS, the CSI report.

Abstract: A method includes receiving a pilot signal or a measurement report from a user equipment (UE) or a base station (BS). The method also includes updating a CSI buffer with channel state information (CSI) obtained from the pilot signal or the measurement report, the CSI buffer configured to store previous uplink or downlink channel estimates. The method also includes providing at least a portion of the CSI buffer to a CSI predictor comprising an artificial intelligence (AI) model that utilizes one or more weight sharing mechanisms, the AI model comprising a sequence of layers. The method also includes predicting temporal CSI using the CSI predictor. Depending on the configured output, the method can also include and/or be used for denoising and frequency extrapolation.

Abstract: A base station includes a plurality of antennas, a data unit (DU) comprising a first processor and a first memory containing instructions, which when executed by the first processor, cause the DU to receive a signal to be transmitted via the plurality of antennas, obtain per-antenna-power-constraint (PAPC) information, determine an estimated effective transmission power (Peff) based on the PAPC information, and pre-schedule the signal for transmission based on the Peff. The base station further includes a massive MIMO unit (MMU) comprising a second processor and a second memory containing instructions, which when executed by the second processor, cause the MMU to receive, from the DU, the pre-scheduled signal, perform pre-coding on the pre-scheduled signal based on a current value of a PAPC determined at the MMU to normalize per-antenna gain of antennas of the plurality of antennas, and provide the pre-coded signal for transmission via the plurality of antennas.

Abstract: A method and device for self-tuning scales of variables for processing in fixed-point hardware. The device includes a sequence of fixed-point arithmetic circuits configured to receive at least one input signal and output at least one output signal. The circuits are preconfigured with control scales associated with each of the input and output signals. A first circuit in the sequence is configured to receive a first input signal having a dynamic true scale that is different from the control scale associated with the first input signal. Each of the circuits is further configured to determine, for each of the output signals, an adaptive scale from the control scale associated with the output signal based on the true scale of the first input signal and the control scale associated with the first input signal, and generate, from the input signal, the output signal having the associated adaptive scale.

Abstract: A radio frequency (RF) unit and method of operation of the RF unit are disclosed herein. The RF unit comprises an antenna array, and the antenna array comprises a plurality of antenna elements. A first set of the plurality of antenna elements is configured to operate in a first mode and a second set of the plurality of antenna elements is configured to operate in a second mode. In the first mode, the first set of the plurality of antenna elements is configured to transmit and receive. In the second mode, the second set of the plurality of antenna elements is configured to only receive.

Abstract: A method includes scanning for registered fine-time measurement (FTM)-enabled Wi-Fi nodes to generate a list of the FTM-enabled Wi-Fi nodes. The method also includes performing a ranging operation by (i) selecting nodes to range with from the list of the FTM-enabled Wi-Fi nodes and (ii) processing ranging responses from the selected nodes to generate distance measurements. The method further includes estimating a position of a device based on the distance measurements generated from the ranging operation.

Abstract: A user equipment (UE) in a wireless communication system. The UE comprises at least one processor configured to determine a first subcarrier spacing and a transceiver configured to transmit, to a base station (BS), random access signals generated with the first subcarrier spacing and receive a downlink control signaling comprising a physical (PHY) resource configuration that includes a second subcarrier spacing. The UE further comprises at least one processor configured to set the PHY resource configuration for at least one of uplink transmission or downlink reception.

Abstract: A vegetable cutting and washing device provided by the utility model comprises a collection basin, a basin cover, a cover plate and a cutting blade for cutting vegetables. The basin cover is provided with a vegetable pouring port and a plurality of draining holes; the cover plate is detachably installed in the vegetable pouring port; the cover plate is provided with an installing hole; the cutting blade is detachably installed on the installing hole; and the basin cover is clamped with the collection basin through a clamping piece. The utility model relates to a vegetable cutting and washing device, and belongs to the technical field of food processing machinery. The utility model can directly collect vegetables after shredding or slicing for washing, so that the use is convenient and the preparation time of side dishes is shortened.

Abstract: Directional sensing capability, including number of beams, beam-width, analog or digital beam sweeping, and supported waveforms, may be indicated by a user equipment (UE), which may then receive a configuration for directional sensing including number of beams, maximum or minimum beam-width, reception time between transmission beam sweeping, and waveform. The UE then performs directional sensing based on the received configuration. The configuration for directional sensing may be for one of monostatic sensing with reception periods between consecutive sensing signal transmissions or bistatic sensing using a plurality of beams. The UE's directional sensing capability may include capability of spatial multiplexing of sensing signals with communication signals. The configuration for directional sensing may permit spatial multiplexing of sensing signals with communication signals.

Abstract: A method includes determining estimated features comprising second order statistics based on at least one received signal. The method also includes classifying, using a machine learning network, each channel of the at least one received signal into a channel profile based on the estimated features. The method also includes obtaining multiple minimum mean square error (MMSE) channel estimation weights from a database based on the estimated features, the database storing (i) representative MMSE estimation weights and (ii) channel cluster representatives indexed by the estimated features. The method also includes applying a respective MMSE channel estimation weight for each channel.

Abstract: The present invention discloses a tank cover with a pressure balance valve, and relates to the field of storage tanks. The tank cover with the pressure balance valve comprises a cover plate, a rotating assembly and a valve cover. The cover plate is provided with a groove. The rotating assembly is fixed at the slope transition of the groove bottom of the groove; the valve cover is rotatably connected in the groove; the valve cover is rotatably connected with the rotating assembly; a plug is arranged at one end of the valve cover corresponding to the vent hole; and the plug forms a detachable sealing structure with the vent hole. The present invention further discloses a storage tank. The present invention makes the opening and closing of the storage tank convenient and rapid through the pressure balance valve, and has simple and stable structure.

Abstract: An antenna and a base station including the antenna. The antenna includes a sub-array that includes first and second unit cells and a feed network. The first and second unit cells comprise first and second patches, respectively, having quadrilateral shapes. The feed network comprises a first transmission line terminating below first corners of the first and second patches, respectively; a second transmission line terminating below third corners of the first and second patches, respectively; a third transmission line terminating below a second corner of the first patch and a fourth corner of the second patch; and a fourth transmission line terminating below a fourth corner of the first patch and a second corner of the second patch. The first corners are opposite the third corners on the respective first and second patches and the second corners are opposite the fourth corners on the respective first and second patches.

Abstract: Methods and apparatuses for uplink (UL) coverage enhancements with joint phase-time arrays (JTPAs). A method for operating a base station (BS) includes identifying criteria associated with a set of user equipments (UEs) in a cell of the BS and determining, based on the criteria, a first subset of the set of UEs to use a JPTA beamforming. The method further includes using the JPTA beamforming for signaling with the first subset of UEs and using an analog beamforming for signaling with a second subset of UEs in the set of UEs.

Abstract: A time domain resource configuration indicates a time domain resource for sensing operations by a user equipment, and a frequency domain resource configuration indicates a bandwidth part (BWP) for the sensing operations. The user equipment performs the sensing operations using the indicated time domain resource and the indicated bandwidth part. The time domain resource configuration may include a sensing type indicator S for the time domain resource for sensing operations, and may indicate that dynamic triggering of sensing is allowed. The BWP for the sensing operations may comprise BWP(s) selectively activated for the sensing operations, and may indicate BWP(s) that overlap a BWP used for cellular communication. Assistance information for interference between sensing operations and cellular communication may be transmitted by the user equipment, which may subsequently receive a configuration for coexistence of the sensing operations and the cellular communication.

Abstract: Methods and apparatuses for mobility robustness with joint phase-time arrays (JTPAs). A method for operating a base station (BS), includes determining, based on a wide-beam (WB) alignment procedure, a subset of beams for transmission of physical downlink shared control channels (PDSCHs). The method further includes transmitting a physical downlink control channel (PDCCH) indicating the subset of beams and transmitting the PDSCHs on the subset of beams, respectively, using a JPTA beamforming. The same data is included in each of the PDSCHs.

Abstract: A method and apparatus provide a user equipment (UE) configured to communicate with a plurality of carrier aggregation (CA) groups with at least a first CA group (CG1) and a second CA group (CG2). The UE includes processing circuitry. The processing circuitry is configured to determine whether the UE is power-limited. The UE is scheduled to transmit acknowledged information in a physical uplink shared channel (PUSCH) to a cell of the CG1 and uplink control information (UCI), other than the acknowledgement information, in a physical uplink control channel (PUCCH) to a cell of the CG2. The processing circuitry is also configured to, responsive to the UE being power-limited, prioritize the PUSCH for power allocation. The processing circuitry is also configured to transmit the PUSCH to the cell of the CG1.