Abstract: Methods and apparatuses are disclosed for calculating and compensating for Doppler shift in a high-speed environment. When in a high-speed environment, Doppler shifts on a transmitted radio frequency signal can become extremely large, which may make it difficult or even impossible for a receiving device to accurately decipher the signal. Therefore, embodiments of the present disclosure describe how tracking reference signals can be transmitted from multiple transmission/reception points, and processed by the UE. For example, the TRS transmitted from the TRP can be enhanced to allow for TRS information from two different TRPs. Additionally, or alternatively, a flag can be set within TRS information that identifies it as having originated from either a first TRP or a second TRP. Additionally, the UE can calculate Doppler shift information and report that information back to the base station in a report message, such as an SRS message. In this manner, the base station can precompensate for the Doppler shift.

Abstract: Measurement resources are often limited in 5G and 4G-LTE communications. As a result, SMTC and CSI-RS measurement windows will occasionally be assigned to the same resource elements of a signal frame. This results in a collision that must be resolved, since both measurements cannot be performed simultaneously. The collision can be resolved using restriction, where overlapping resource elements are assigned to either the SMTC or the CSI-RS measurements, or can be resolved using measurement sharing, where overlapping resource elements are divided among the two measurements according to a measurement sharing factor. Various factors, including priority or window periodicity may be taken into account by the measurement rules that dictate collision resolution.

Abstract: Performing user equipment (UE) coordination based beam management may include determining resources for measuring beams and reporting measured beam information. The resources may be configured for a first user equipment (UE) of a plurality of coordinated UEs. The determined resources may be transmitted to the first UE via radio resource control (RRC) or medium access control-control element (MAC CE). Measured beam information received from the first UE for configuring beam sharing between multiple UEs of the plurality of coordinated UEs may be decoded.

Abstract: Example embodiments of the present disclosure relate to methods, devices, apparatuses and computer readable storage media of resource allocation for transport block (TB) transmission over multiple slots. In example embodiments, a user device receives, from a network device, an indication of at least a number of slots associated with transmission of a TB, then transmits the TB to the network device over a plurality of valid slots selected based on the indication.

Abstract: The present application relates to devices and components including apparatus, systems, and methods for network-assisted sidelink resource selection.

Abstract: Embodiments describe methods, computer-readable media, and apparatuses for configuring, transmitting, and using sounding reference signals.

Abstract: A method and apparatus for performing sidelink communications in a wireless transmit receive unit (WTRU) using Long Term Evolution (LTE) and New Radio (NR) technologies is described herein. A WTRU receives downlink control information (DCI) on a physical downlink control channel (PDCCH) from a gNodeB (gNB), wherein the DCI is associated with a cyclic redundancy check (CRC). The a determination is made as to whether the DCI is for an LTE or NR technology sidelink transmission. On a condition that the DCI is for NR technology, the WTRU determines which transmit modulation and coding scheme (MCS) table to apply based on the masking of at least some of the bits in the CRC. Then the WTRU transmits sidelink data on resources indicated by the DCI using the determined MCS table. The WTRU may also receive HARQ feedback on resources indicated by the DCI for HARQ feedback.

Abstract: Systems, methods, and circuitries are provided for performing sidelink communication. An example method generates SCI stage 1 and stage 2 for transmitting a transport block (TB) to a user equipment device (UE). The method includes determining the type of sidelink communication for transmitting the TB. An SCI stage 2 format is selected based on the type of sidelink communication. An SCI stage 2 payload is encoded in accordance with the selected SCI stage 2 format. The selected SCI stage 2 format value is encoded in an SCI stage 1 payload. The SCI stage 1 payload and SCI stage 2 payload are transmitted to the UE.

Abstract: Embodiments of the present disclosure relate to downlink data reception operation. According to embodiments of the present disclosure, a baseband processor of a user equipment (UE) is configured to perform operations comprising receiving Downlink Control Information (DCI) through more than one beams from at least one from at least one TRP; determining a DCI transmission scheme for the received DCI, wherein the DCI transmission scheme is configured by an upper layer signaling, and wherein the DCI transmission scheme is one of a Single Frequency Network (SFN) scheme, a non-SFN scheme, and a hybrid scheme, wherein the DCI is transmitted using both SFN scheme and non-SFH scheme in the hybrid scheme; determining whether the received DCI indicates a Transmission Configuration Indicator (TCI) for PDSCH reception from the at least one TRP or not.

Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable storage media for hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook handling. In example embodiments, a method is provided. The method comprises determining, at a terminal device, respective hybrid automatic repeat request (HARQ) feedback configurations of a plurality of HARQ processes, wherein each HARQ feedback configuration indicates whether HARQ feedback is enabled or disabled for a corresponding HARQ process; and generating a HARQ-ACK codebook for Physical Downlink Shared Channel (PDSCH) based on the HARQ feedback configurations of the plurality of HARQ processes; and transmitting the HARQ-ACK codebook to a network device.

Abstract: A base station configures a user equipment (UE) to perform measurements. The base station configures the UE for at least one channel state information (CSI) measurement report including an indication of first reference signal (RS) resources for a first transmission and reception point (TRP) and second RS resources for a second TRP, the first RS resources comprising a first plurality of beamformed RS and the second RS resource comprising a second plurality of beamformed RS to be received simultaneously at the UE, wherein the UE is further configured to select a first beam from the first plurality of beamformed RS and a second beam from the second plurality of beamformed RS and receives the at least one CSI measurement report comprising measurements for the first beam and the second beam.

Abstract: Embodiments of the present disclosure relate to uplink transmission with repetitions. According to embodiments of the present disclosure, a user equipment (UE) comprises a transceiver configured to communicate with a network; and a processor communicatively coupled to the transceiver and configured to perform operations. The operations comprise determining first Channel State Information (CSI) and second CSI based on at least one of a previous channel and interference measurement or a latest channel and interference measurement. The operations further comprise transmitting the first CSI via the transceiver to the network with a first beam, the first CSI multiplexed with a first repetition of an uplink transmission with the first beam. The operations further comprise transmitting the second CSI via the transceiver to the network with a second beam, the second CSI multiplexed with a second repetition of the uplink transmission with the second beam.

Abstract: A user equipment (UE) may establish communication with a plurality of transmission reception points (TRPs) and determine one or more beam failures associated with a first or second TRP based on reference signals received from the first and second TRPs. The UE may then transmit a scheduling request requesting resources for indicating the beam failures associated with the first TRP or second TRPs. Upon receiving a response to the scheduling request allocating resources, the UE may then transmit, using allocated resources, a beam failure indication of the first one or more beam failures associated with the first TRP or second TRP. After receiving a beam failure response from the first or second TRP, the UE may then communicate with the first TRP and the second TRP using one or more new beams based on the beam failure indication and the beam failure response.

Abstract: A base station configures a physical uplink control channel (PUCCH) for a user equipment (UE) operating in a frequency band above 52.6 GHz. The base station allocates a predetermined number of resource blocks (RBs) for a physical uplink control channel (PUCCH) transmission, wherein the predetermined number of RBs is greater than one RB, transmits a PUCCH configuration including the predetermined number of RBs to the UE and receives a PUCCH transmission based on the PUCCH configuration and including a data sequence and a DMRS sequence, wherein the PUCCH configuration results in a multiplexing of a plurality of UEs based on a plurality of demodulated reference signal (DMRS) sequences.

Abstract: A user equipment (UE) is configured to configured to use multiple beams for transmission or reception. The UE receives, from a base station, at least one medium access control (MAC) control element (CE) that indicates multiple activated transmission configuration indicator (TCI) states, receives, from the base station, at least one downlink control information (DCI) indicating a subset of TCI states of the multiple activated TCI states, wherein the MAC CE and the DCI are part of a TCI configuration, and wherein the subset of TCI states corresponds to multiple transmission and reception points (TRPs) of a wireless network, maps the subset of TCI states to the corresponding multiple TRPs based on the TCI configuration and selects a beam used for transmission or reception based on one mapped TCI state of the mapped subset of TCI states.

Abstract: A user equipment is configured to receive a reference signal when secondary cell (SCell is to be activated. The UE receives a secondary cell (SCell) activation indication for activating an SCell, receives a reference signal (RS) triggering indication for triggering an RS prior to an expected SCell activation period, performs measurements on the triggered RS and activates the SCell based on the RS measurements.

Abstract: Aspects are described for a user equipment (UE) comprising a transceiver configured to enable wireless communication with a first transmission/reception point (TRP) and a second TRP and a processor communicatively coupled to the transceiver. The UE is in a multi-TRP mode. The processor is configured to perform a first beam failure detection (BFD) procedure for the first TRP and a second BFD procedure for the second TRP. The processor is further configured to perform a first beam failure recovery (BFR) procedure for the first TRP responsive to a result of the first BFD procedure and a second BFR for the second TRP responsive to a result of the second BFD procedure. The processor is further configured to receive a configuration message, a BFD configuration, and a BFR configuration. The UE switches to a single-TRP mode upon receiving the configuration message.

Abstract: The present application relates to devices and components including apparatus, systems, and methods to provide SCell activation. In one example, a UE may support carrier aggregation in a high speed mode, such FR1 CA in HST. Serving cells can be particularly configured for the carrier aggregation based on the UE's capability to support carrier aggregation in the high speed mode. Additionally or alternatively, an SCell activation procedure can be performed based on this capability.

Abstract: This disclosure relates to techniques for signaling a quasi-colocation (QCL) update in a wireless communication system. A network or base station may indicate to a UE to change a spatial relationship for transmission/reception. The base station may provide aperiodic reference signals for the UE to use in beam tracking according to the new spatial relationship. Optionally, the base station may also provide aperiodic reference signals for time, frequency, and/or phase tracking. Thus, the network may configure the UE to change to the new spatial relationship and use the aperiodic reference signals to quickly complete initial tracking operations.

Abstract: A WTRU may select sidelink unicast or groupcast to transmit data. If the WTRU selects sidelink unicast, the WTRU may select to use HARQ ACK/NACK feedback for the transmission. If the WTRU selects sidelink groupcast, either HARQ NACK or HARQ ACK/NACK may be selected depending upon one or more factors. The WTRU may select HARQ NACK or HARQ ACK/NACK depending upon one or more of: a number of WTRUs to receive the data; a condition of a channel associated with transmission; or a quality of service associated with transmission. The WTRU may select a first or second PSFCH format for feedback based upon one or more factors. The WTRU may select a first or second PSFCH format based upon one or more of: the selected sidelink unicast or groupcast; the selected HARQ NACK or HARQ ACK/NACK feedback; or a quality of service associated with the transmission.