Mediatek Corporation

Hfi Innovation Inc.

Mediatek Singapore Pte. Ltd.

Lung-Sheng Tsai

Weidong Yang

Chien-Hwa Hwang

Yi-Ju Liao

Pei-Kai Liao

Xiangyang Zhuang

Bo-Si Chen

Tze-Ping Low

Tzu-Han Chou

Jiann-Ching Guey

Tsang-Wei Yu

Chao-Cheng Su

Xiu-Sheng Li

Teemu Tapio Virtanen

Tao Chen

Cheng-Rung Tsai

Chien-Yi Wang

Karl Marko Juhani Lampinen

Chiao-Yao Chuang

Chia-Hao Yu

Wei-De Wu

Yu-Chuan Lin

Ming-Po Chang

Kuhn-Chang Lin

Gyu Bum Kyung

Chou Kuan Hung

In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a first wireless device of a group of M wireless devices. The first wireless device receives a first time domain signal from a user equipment (UE) on a first frequency band through each receiving antenna. This first time domain signal occupies a first transmission time interval (TTI) and includes K first OFDM symbols corresponding to a first subcarrier spacing. Each first OFDM symbol represents a set of Nmodulation symbols on Nsubcarriers using the first subcarrier spacing. The first wireless device generates a second time domain signal that occupies a second transmission time interval (TTI) and corresponds to the first time domain signal. The first wireless device transmits each second time domain signal to a base station on a second frequency band through a transmitting antenna, respectively.

Cooperation with digital frequency-translation repeater for uplink transmission and reception-repeater behavior

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 NRF signals at Nantennas on a first time-frequency resource. The NRF signals carrying L layers of data generated at a base station. Nand L are positive integers. L is greater than N. The UE receives NRF signals at the Nantennas on a second time-frequency resource. The NRF signals carries the L layers of data. Nis a positive integer. The UE obtains Nbaseband signals from the NRF signals. The UE obtains Nbaseband signals from the NRF signals. The UE determines the L layers of data based on the Nbaseband signals and the Nbaseband signals.

Downlink framework for distributed MIMO receivers

Examples pertaining to transceiving capability augmentation of a communication apparatus in mobile communications are described. A user equipment (UE) transmits a first radio frequency (RF) signal carrying a first baseband signal in a first frequency band to a network node and transmits a second RF signal carrying a second baseband signal in a second frequency band to a collaborating communication apparatus. The first baseband signal and the second baseband signal are identical, and the first frequency band is different from the second frequency band.

Method and apparatus for transceiving capability augmentation based on device collaboration in mobile communications

A first repeater obtains a second set of Mbaseband signals, with each baseband signal in the second set corresponding to one of the Mtransmission antennas, and Mbeing a positive integer. The first repeater divides the Mtransmission antennas into groups, with each group containing a predetermined number of antennas not exceeding N, and Nbeing the number of reception antennas at a UE and a positive integer. The first repeater allocates a first subset of L second transmission time intervals associated with a second SCS to the groups of transmission antennas, with the L second transmission time intervals corresponding to a first transmission time interval associated with a first SCS. The first repeater transmits RF signals on a second carrier frequency and carrying a subset of the second set of Mbaseband signals, in each interval of the first subset of the L second transmission time intervals.

Port mapping between input ports and output ports of RCFT devices for DL transmission

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 determines that reference signals are transmitted from L antenna ports of a base station on reference time-frequency resources. The UE receives first RF signals at Nphysical antennas on first time-frequency resources. The first RF signals carries the reference signals. Nand L are positive integers. Nis less than L. The UE receives second RF signals at Nphysical antennas on second time-frequency resources. The second RF signals carries the reference signals. Nis a positive integer and less than L. The UE obtains channel state measurements corresponding to the reference signals based on baseband signals derived from the first RF signals and the second RF signals. The UE generates a CSI report based on the channel state measurements.

CSI acquisition for distributed MIMO

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 determines a first codebook and a second codebook associated with a first antenna panel and a second antenna panel. The UE receives, from a base station, a first indication for constructing, based on the first codebook, a first precoder to be applied to the first antenna panel. The UE receives, from the base station, a second indication for constructing, based on the second codebook, a second precoder to be applied to the second antenna panel. The UE transmits, through the first antenna panel, first signals generated according to the first precoder and directed to the base station. The UE transmits, through the second antenna panel, second signals generated according to the second precoder and directed to a wireless device.

Codebook re-configuration/update and precoder indication

A UE receives a first precoder indication from a base station. The first precoder indication indicates a first precoder for a first antenna panel. The UE receives a second precoder indication from the base station. The second precoder indication indicates a second precoder for a second antenna panel. The UE receives an indication of first time-frequency resources from the base station for communicating via the first antenna panel. The UE receives an indication of second time-frequency resources from the base station for communicating via the second antenna panel. The UE transmits first signals generated according to the first precoder indication through the first antenna panel on the first time-frequency resources. The UE transmits second signals generated according to the second precoder indication through the second antenna panel on the second time-frequency resources.

Uplink codebook design for device collaboration

Various examples and schemes pertaining to resource allocation enhancements for sidelink (SL) communications are described. A user equipment (UE) receives from a peer UE a sidelink control information (SCI) signal indicating a reserved resource. The UE then determines whether the reserved resource is acceptable by performing a reference signal received power (RSRP)-based comparison. Depending on a result of the determining, the UE performs a transmission to either the peer UE or one or more other UEs.

Resource allocation enhancements for sidelink communications

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 measures a first set of reference signals to determine a first channel state of a first channel between a first TRP and the UE. The UE measures interference received at the UE. The UE sends a first CSI report generated corresponding to the first channel state. The UE sends a second CSI report generated corresponding to the interference.

CSI reporting for channel part and interference part separately

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 determines a first uplink slot on an uplink carrier for reporting channel state information. The UE determines, on a downlink carrier, a first downlink slot that is an earliest downlink slot overlaps with the first uplink slot. The UE determines a number M based on a numerology of the downlink carrier, M being an integer greater than or equal to 0. The UE measures a reference signal, received no later than a second downlink slot that is a latest valid downlink slot no later than M downlink slots prior to the first downlink slot, to generate the channel state information.

NR CSI measurement and CSI reporting

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 measures, at a first time point, a first set of reference signals to determine a first set of values corresponding to a set of CSI parameters. The UE determines value differences between the first set of values and a set of reference values corresponding to the set of CSI parameters. The UE sends a first CSI report including variation indicators indicating the value differences.

Acquisition of channel state information

Various examples and schemes pertaining to enhancements for sidelink (SL) resource allocation in New Radio (NR) vehicle-to-everything (V2X) communications are described. A user equipment (UE) transmits to a peer UE assistance information with respect to a result of sensing of one or more resources reserved for a SL communication. The UE then receives a transmission from the peer UE on a resource selected by the peer UE based on the assistance information.

Sidelink resource allocation enhancements

A user equipment (UE) in wireless communication receives a configuration of search space (SS) sets that include a first SS set in a first control resource set (CORESET) and a second SS set in a second CORESET. The first CORESET and the second CORESET have different transmission configuration indication (TCI) states. The UE repeatedly receives downlink control information (DCI) via a first physical downlink control channel (PDCCH) and a second PDCCH. The first PDCCH is allocated with a first set of time-and-frequency resources configured for first SS set and the second PDCCH is allocated with a second set of time-and-frequency resources configured for the second SS set. The UE then parses the DCI to obtain control information for the wireless communication. Alternatively, the configuration of SS sets received by the UE is in one CORESET that has at least a TCI state and a second TCI state activated.

Enhanced reliability for downlink control information (DCI) reception from multiple transmit receive points (M-TRP)

A UE determines N1 component carriers on each of which the UE is configured to detect a respective one PDCCH in a slot. The UE determines N2 component carriers on each of which the UE is configured to detect respective at least two PDCCHs in the slot. The UE determines a total Q blind detections of PDCCH that the UE is capable of performing. The UE determines a first predetermined scaling factor X. The UE allocates M1 blind detections of the Q blind detections to be available on each of the N1 component carriers and M2 blind detections of the Q blind detections to be available on each of the N2 component carriers such that (N1*M1+N2*M2) is a largest integer no greater than Q. M2 equals to X*M1. The UE performs blind detections in accordance with the allocations.

Blind detection and CCE allocation for carrier aggregation

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 monitors a respective down link control channel (DCCH) from each of a plurality of transmission and reception points (TRPs). The UE receives, from a first TRP of the plurality of TRPs, a first trigger for reporting N1 channel state information (CSI) reports within a time duration, N1 being an integer greater than 0. The UE commits to update the N1 CSI reports. The UE determines that P processing units are remaining available for calculation of CSI reports while the UE is calculating the N1 CSI reports. P is a number greater than or equal to zero. Each of the P processing units indicates a predetermined amount of computing power of the UE.

Growing community of inventors

Hsinchu, Taiwan

Lung-Sheng Tsai