Abstract: Wireless receiver systems and methods for user equipment are described that employ multiple receiver heads. The multiple heads can receive wireless communication signals over different receive paths from different transmission sources. The systems can scan and monitor signal quality from all receiver heads during a scheduled gap in a communication link without interfering with an ongoing communication session.

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives a target SSB from a base station. The UE obtains received data carried in a broadcast channel of the target SSB. The UE reconstructs, based on received data carried in a broadcast channel of a previously received SSB, transmitted data placed in the broadcast channel of the target SSB at the base station. The UE preforms a channel estimation and/or synchronization based on a comparison of the received data and the transmitted data of the target SSB.

Abstract: A method to perform beam management (BM) and/or synchronization (Sync) with interference cancellation on synchronization signal block (SSB) is proposed. A UE determines interference level and/or pilot contamination level. The UE can then perform BM or Sync, with or without interference cancellation, adapt to the determined interference and pilot contamination level. If interference level is high, UE applies interference cancellation for BM and Sync. If interference level is low, UE does not apply interference cancellation for BM and Sync. If the pilot contamination level is high, then UE follows the 3-symbol mode, e.g., uses only PECH0 SSS, and PBCH2 symbols for BM or Sync. If the pilot contamination level is low, then UE follows the 4-symbol mode, e.g., uses PSS as an extra symbol for BM or Sync to improve system performance.

Abstract: A method to perform beam management (BM) and/or synchronization (Sync) using primary synchronization signal (PSS) when pilot contamination is low to improve system performance is proposed. A UE first determines pilot contamination level on PSS of a synchronization signal block (SSB), depending on different network deployment scenarios. The UE then adaptively perform BM or Sync, by dynamically adjusting to the pilot contamination level on PSS. If the pilot contamination level is high, then the UE follows a 3-symbol mode, e.g., uses only PBCH0, SSS, and PBCH2 symbols for performing BM or Sync. Otherwise, if the pilot contamination level is low, then the UE follows a 4-symbol mode, e.g., uses PSS as an extra symbol for BM or Sync to improve system performance.

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives, from a base station, a configuration specifying an initial aggregated bandwidth W0 carried on C0 component carriers on which a reception unit (RXU) of the UE is to receive signals. The UE determines a total bandwidth WTOT on which the UE is capable of receiving signals. The UE determines, based on WTOT and W0, an initial hardware limit of Q0? RXUs that the UE is allowed to activate concurrently. The UE determines an adjusted aggregated bandwidth W1 carried on C1 component carriers on which an RXU of the UE is to receive signals based on a channel condition between the UE and the base station.

Abstract: A method for determining an uplink re-transmission strategy is provided. The method is applied to user equipment (UE). The method includes the following steps. A data re-transmission configuration from a network applicable to a Hybrid Automatic Repeat Request (HARQ) process is received. Target data are transmitted to the network. A message from the network associated with the target data is received. The probability, which is higher than a certain threshold, that the network is able to decode the target data based on a data re-transmission on a physical uplink shared channel (PUSCH) is determined. The data re-transmission is transmitted to the network through the PUSCH if the determination is positive.

Abstract: An apparatus for perform power control on a wireless communication device includes: a power estimator, a power meter, a calibration unit and a control unit. The power estimator is configured to generate an estimated power value by querying power mapping information according to scenario information. The power meter is configured to generate a measured power value based on measurement of power supplied to partial circuits of the wireless communication device. The calibration unit is coupled to the power estimator and the power meter and configured to generate a calibrated power value according to the estimated power and the measured power, and accordingly to update the power mapping information based on the calibrated power value and the scenario information. The control unit is coupled to the power estimator and configured to perform power control on the partial circuits of the wireless communication device according to the estimated power value.

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a device. The device applies Nso sensing beam vectors to Nso received signals at Nant antennas to obtain Nso measurements, respectively, Nso and Nant each being an integer greater than or equal to 1. The device determines a beam vector based on the Nso measurements and the Nso sensing beam vectors.

Abstract: The invention provides a method for antenna selectin of a user equipment (UE). The UE may comprise a plurality of antennas. The method may comprise calculating one or more quality evaluations respectively associated with one or more first antenna subsets, and selecting one of the one or more first antenna subsets according to the one or more quality evaluations. Each antenna subset may include one or more of the plurality of antennas. Each quality evaluation may be calculated under a condition that the antenna(s) included in the associated antenna subset is (are) used to communicate.

Abstract: A communication apparatus comprises a radio transceiver and a modem processor. The radio transceiver is configured to transmit or receive signals. The modem processor is coupled to the radio transceiver and configured to perform operations comprising: performing a beam management, to train a first receiver (Rx) beam; receiving a physical downlink shared channel (PDSCH) according to the first Rx beam; selecting at least one second Rx beam according to a scenario, if a first performance indicator of the first Rx beam is lower than a previous first performance indicator of the first Rx beam by a first threshold; determining at least one second performance indicator of the PDSCH according to a round-robin test; selecting a third Rx beam from the at least one second Rx beam according to the at least one second performance indicator; and receiving the PDSCH according to the third Rx beam.

Abstract: A process for smelting high-speed steel by using an intermediate frequency furnace-LF furnace-VD includes: firstly, melting a steel material in an intermediate frequency furnace, smelting until the steel material is melted, adjusting chemical components, and then performing deoxidation and slagging; performing electric heating for steel tapping, sending the steel tapping into an LF furnace for smelting, heating to 1470-1510° C., and adjusting the chemical components; and finally, sending these components into a VD furnace for vacuum treatment, and performing steel tapping after the components are qualified. A slagging process in the intermediate frequency furnace is used, then the coarse adjustment of chemical components, the primary deoxidation, and the slagging are performed in the intermediate frequency furnace. After the molten steel is sent to the LF furnace, the slag adjustment can be performed. A content of oxygen in the molten steel can be controlled within 10 ppm after the VD vacuum treatment.

Abstract: Wireless receiver systems and methods for user equipment are described that employ multiple receiver heads. The multiple heads can receive wireless communication signals over different receive paths from different transmission sources. The systems can scan and monitor signal quality from all receiver heads during a scheduled gap in a communication link without interfering with an ongoing communication session.

Abstract: A communication apparatus comprises a radio transceiver and a modem processor. The radio transceiver is configured to transmit or receive signals. The modem processor is coupled to the radio transceiver and configured to perform operations comprising: performing a beam management, to train a first receiver (Rx) beam; receiving a physical downlink shared channel (PDSCH) according to the first Rx beam; selecting at least one second Rx beam according to a scenario, if a first performance indicator of the first Rx beam is lower than a previous first performance indicator of the first Rx beam by a first threshold; determining at least one second performance indicator of the PDSCH according to a round-robin test; selecting a third Rx beam from the at least one second Rx beam according to the at least one second performance indicator; and receiving the PDSCH according to the third Rx beam.

Abstract: An embodiment of the invention provides a communication apparatus comprising a radio transceiver and a modem processor. The radio transceiver is configured to transmit or receive wireless signals in a wireless network. The modem processor is coupled to the radio transceiver and configured to perform operations comprising: dividing a tracking reference signal (TRS) set into a plurality of TRS subsets; scheduling a first part of the plurality of TRS subsets for a beam management; and scheduling a second part of the plurality of TRS subsets for a synchronization.

Abstract: Wireless receiver systems and methods for user equipment are described that employ multiple receiver heads. The multiple heads can receive wireless communication signals over different receive paths from different transmission sources. The systems can scan and monitor signal quality from all receiver heads during a scheduled gap in a communication link without interfering with an ongoing communication session.

Abstract: Apparatus and methods are provided for robust front end selection control. In one novel aspect, multi-stage head selection is provided. In one embodiment, the UE monitors one or more head-selection triggers, performs a UE Rx wide beam measurement to select at least one deactivated head as at least one standby head based on one or more coarse-beam selection criteria upon detecting at least one head-selection trigger, performs a UE Rx fine beam selection on the active head and the selected standby head, and switches the standby head as the active head based on a result of the fine Rx beam selection and head selection criteria. One or more operations are used for the multi-stage head selection, including multi-head operation, multi-CC measurement, and joint RRM and head selection operation.

Abstract: A method to perform beam management (BM) and/or synchronization (Sync) with interference cancellation on synchronization signal block (SSB) is proposed. A UE determines interference level and/or pilot contamination level. The UE can then perform BM or Sync, with or without interference cancellation, adapt to the determined interference and pilot contamination level. If interference level is high, UE applies interference cancellation for BM and Sync. If interference level is low, UE does not apply interference cancellation for BM and Sync. If the pilot contamination level is high, then UE follows the 3-symbol mode, e.g., uses only PECH0 SSS, and PBCH2 symbols for BM or Sync. If the pilot contamination level is low, then UE follows the 4-symbol mode, e.g., uses PSS as an extra symbol for BM or Sync to improve system performance.

Abstract: The invention provides a method for antenna selectin of a user equipment (UE). The UE may comprise a plurality of antennas. The method may comprise calculating one or more quality evaluations respectively associated with one or more first antenna subsets, and selecting one of the one or more first antenna subsets according to the one or more quality evaluations. Each antenna subset may include one or more of the plurality of antennas. Each quality evaluation may be calculated under a condition that the antenna(s) included in the associated antenna subset is (are) used to communicate.

Abstract: A method of cross component carrier (Cross-CC) beam management is proposed. A transceiver uses multiple CCs' channel measurements to obtain a beam vector such that better performance can be achieved by utilizing wideband channel. The transceiver derives the beam vector by using the channel measurements of a set of selected CCs applied with a carrier weight factor. The transceiver utilizes beam management reference signal (BM-RS) of the set of selected CCs to derive the beam vector, e.g., an optimal beam. In one embodiment, the carrier weight factor can be the number of BM-RS REs of each CC. In another embodiment, the channel measurements can be SNR/RSRP, and the carrier weight factor can be the SNR/RSRP of each CC.

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives, from a base station, a configuration specifying an initial aggregated bandwidth W0 carried on C0 component carriers on which a reception unit (RXU) of the UE is to receive signals. The UE determines a total bandwidth WTOT on which the UE is capable of receiving signals. The UE determines, based on WTOT and W0, an initial hardware limit of Q0? RXUs that the UE is allowed to activate concurrently. The UE determines an adjusted aggregated bandwidth W1 carried on C1 component carriers on which an RXU of the UE is to receive signals based on a channel condition between the UE and the base station.