Abstract: Systems, methods, apparatuses, and computer program products for non-linear precoding are provided. One method may include combining, by a network node, of linear and non-linear precoding, for example based on specific channel state information acquisition from at least one user equipment, and generating two types of demodulation reference signals for the concatenated linear and non-linear precoding. The method may include multiplexing, by the network node, the two types of demodulation reference signals with data. A first of the two types of demodulation reference signals may be linearly precoded with one linear precoding matrix from a first-stage linear precoder, and another one of the two types may be linearly precoded with both the first-stage linear precoder and a feedforward filter in a second-stage non-linear precoder from the concatenation of linear and nonlinear precoders.

Abstract: A method comprises: configuring multiple reporting modes for multi-level based transmitter (TX) beam index reporting for a particular beam/antenna panel group from a plurality of beam/antenna groups, wherein the multiple reporting modes includes at least one of a full reporting mode configuration for the particular beam/antenna panel group, a full reporting mode configuration common for the plurality of beam/antenna panel groups, a differential reporting mode, and a partial reporting mode, selecting a reporting mode from the multiple reporting modes, and sending a report based on the selected reporting mode.

Abstract: An apparatus includes circuitry configured to: receive a radio resource control configuration including at least one channel state information reporting configuration indicating at least one channel state information quantity for which prediction is configured or enabled; receive at least one of a downlink reference signal and/or a downlink channel for at least one of channel measurement and/or interference measurement; determine the at least one channel state information quantity or at least one channel state information prediction model, based on at least one of a downlink reference measurement, and/or a downlink channel decoding outcome, and/or the at least one channel state information reporting configuration, and/or at least one prediction window; and transmit a channel state information report in uplink control information, based on the determining.

Abstract: According to an example aspect of the present invention, there is provided a method that includes receiving at a user equipment configuration for M active transmission configuration indication states; selecting, according to one or more pre-defined rules, based on the configured M active transmission configuration indication states, a subset of N of the set of M transmission configuration indication states, where N<M; and determining by the user equipment beam failure detection resources based on the selected N transmission configuration indication states.

Abstract: One embodiment is directed to a method comprising estimating a velocity vector that is experienced by an apparatus; reporting to a network element, NE, the velocity vector; receiving from the NE at least one primary reference signal, RS, which will be experienced during a predicted trajectory, and at least one secondary RS that will potentially be experienced during the predicted trajectory; sending to the NE feedback based on the at least one primary RS and the at least one secondary RS; and sending an update of the velocity vector to the NE.

Abstract: An apparatus (10) comprising: at least one processor (12); and at least one memory (13) including computer program instructions (14); the at least one memory (13) and the computer program instructions (14) configured to, with the at least one processor (12), cause the apparatus (10) at least to perform: receiving (201) configuration information for enabling the apparatus (10) to measure a first set of Downlink (DL) Reference Signals (RSs) (302) and/or a second set of DLRSs (304), wherein DLRSs (302 #0-302 #4) of the first set of DLRSs (302) are respectively associated with a first set of DL beams (303), wherein one or more DLRSs (302 #1-302 #3) of the first set of DLRSs (302) are configured to be Quasi-Co-Located (QCLed) with at least one DLRS (304 #m) of the second set of DLRSs (304), and wherein DLRSs (304 #a-304 #z) of the second set of DLRSs (304) are respectively associated with a second set of DL beams (305); receiving (202) information for enabling the apparatus (10) to determine a Quasi-Co-Location (Q

Abstract: One embodiment is directed to a method comprising estimating a velocity vector that is experienced by an apparatus; reporting to a network element, NE, the velocity vector; receiving from the NE at least one primary reference signal, RS, which will be experienced during a predicted trajectory, and at least one secondary RS that will potentially be experienced during the predicted trajectory; sending to the NE feedback based on the at least one primary RS and the at least one secondary RS; and sending an update of the velocity vector to the NE.

Abstract: Systems, methods, apparatuses, and computer program products for selecting or prioritizing between a physical downlink shared channel (PDSCH) and synchronization signal block (SSB) reception are provided. One method may include, when outside a SMTC window and when PDSCH resource allocation overlaps with an occupied SSB location, selecting between the PDSCH and SSB reception according to defined rules.

Abstract: Techniques of performing CSI reporting include identifying a cluster of TRPs sharing common information in their CSI and transmitting a complete CSI report to a selected TRP of the cluster while transmitting partial CSIs reports to other TRPs of the cluster. Along these lines, in an example implementation, a UE receives a CSI-RS from a network, with the CSI-RS carrying a plurality of reference symbols from a plurality of TRPs. Based on the plurality of symbols, the UE generates TRP data representing CSI feedback for each of the TRPs. From the CSI feedback, the UE identifies, as a cluster, a subset of the TRPs that share common information within the CSI feedback. The UE then sends first identification data identifying the subset of the TRPs that make up the cluster to the network.

Abstract: Methods, apparatus, and computer program products for a user equipment receiving CSI-RS and computing channel support information. Based on the CSI, the UE derives tap locations of channel support, depending on the observed channel and used subcarrier spacing. The deriving can additionally be done in relation to power class and window size. The UE apprises a base station of those tap locations of the channel support and also informs the base station of the strongest tap locations, which can be done in various ways comprising a bit mask. Methods, apparatus, and computer program products for a base station to send CSI-RS to a UE for computing CSI feedback. The CSI-RS resources can be for one or multiple transmit receive points. The base station receives back an indication of tap locations and a bit mask and builds information on tap locations by combining that received indication and bit mask.

Abstract: Systems, methods, apparatuses, and computer program products for panel specific uplink power control. A method may include receiving, at a user equipment, an uplink grant indicating an uplink candidate beam for uplink transmission; receiving, at the user equipment, a plurality of power control configurations, wherein one of a plurality of sources of spatial relation information is associated with one of the plurality of power control configurations; determining, at the user equipment, a power control configuration of the plurality of power control configurations for the indicated uplink candidate beam based on an association between a source of spatial relation information and the power control configuration; and transmitting, from the user equipment, uplink data using the indicated uplink candidate beam and the determined power control configuration.

Abstract: A UE determines a PMI, by performing at least the following: determining an intermediate set of vectors from a FD codebook; forming a subset of the intermediate set of vectors; mapping the subset of vectors to a combinatorial indicator; and forming the PMI at least from the combinatorial indicator. The UE sends the PMI toward a wireless network. A base station receives the PMI from the UE. The PMI includes a combinatorial indicator that maps to a subset of vectors from the FD codebook. The base station determines, using at least the received PMI, information from at least the FD codebook to apply to data for transmission toward the UE.

Abstract: Systems, methods, apparatuses, and computer program products for selecting or prioritizing between a physical downlink shared channel (PDSCH) and synchronization signal PBCH block (SSB) reception are provided. One method may include, when outside a SMTC window and when PDSCH resource allocation overlaps with an occupied SSB location, selecting between the PDSCH and SSB reception according to defined rules.

Abstract: A method may include sending, by a user equipment that includes a plurality of antenna panels, to a base station, timing information including at least one of a beam switch timing or a beam report timing, wherein the timing information includes timing information provided for at least one of a first mode of operation or a second mode of operation, wherein the first mode of operation comprising the user equipment not performing switching between an active antenna panel and an inactive antenna panel, and the second mode of operation comprising the user equipment performing switching between an active antenna panel and an inactive panel; and receiving, by the user equipment, at least one downlink control information indicating a mode of operation for the user equipment, wherein the indicated mode of operation is at least one of the first mode of operation or the second mode of operation.

Abstract: An apparatus (10) comprising: at least one processor (12); and at least one memory (13) including computer program instructions (14); the at least one memory (13) and the computer program instructions (14) configured to, with the at least one processor (12), cause the apparatus (10) at least to perform: receiving (201) configuration information for enabling the apparatus (10) to measure a first set of Downlink (DL) Reference Signals (RSs) (302) and/or a second set of DLRSs (304), wherein DLRSs (302 #0-302 #4) of the first set of DLRSs (302) are respectively associated with a first set of DL beams (303), wherein one or more DLRSs (302 #1-302 #3) of the first set of DLRSs (302) are configured to be Quasi-Co-Located (QCLed) with at least one DLRS (304 #m) of the second set of DLRSs (304), and wherein DLRSs (304 #a-304 #z) of the second set of DLRSs (304) are respectively associated with a second set of DL beams (305); receiving (202) information for enabling the apparatus (10) to determine a Quasi-Co-Location (Q

Abstract: Various communication systems may benefit from improved transmissions. For example, a network transmission may benefit from improved throughput and efficiency in non-schedule multiple access communications. A method includes selecting at a user equipment operating in a non-scheduled access scheme at least one of a first codeword or a second codeword based on an amount of data. The data in the non-scheduled access scheme can be spread according to a spreading sequence. The method also includes determining a transport block size for at least one of the first codeword or the second codeword. In addition, the method includes transmitting the data from the user equipment to a network node using at least one of the first codeword or the second codeword.

Abstract: A technique of accounting for the difference in required output power reduction or required duty cycle when selecting the RO in addition to the DL RS. Both output power reduction and duty cycle are independently determined by UE itself (i.e., UE needs to be able to determine itself required power backoff and/or duty cycle in order to meet RF exposure requirements). Advantageously, a RACH procedure in which the UE determines both output power reduction and duty cycle independently enables better choices of output power reduction and duty cycle, enhancing data activity and coverage.

Abstract: A method includes receiving, at a user device, a configuration for beam reporting, where the configuration comprises one of: an indication to provide separate reporting for downlink beam selection and uplink beam selection; or an indication to provide reporting for uplink beam selection.

Abstract: Systems, methods, apparatuses, and computer program products for non-linear precoding in radio access networks are provided. One method may include, when it is determined that a user equipment is capable of being non-linearly precoded, determining one of two non-linear precoding modes and indicating the determined non-linear precoding mode to the user equipment. One of the two non-linear precoding modes is configured to use explicit beamformed channel state information, and the other one of the two non-linear precoding modes is configured to use explicit full downlink channel state information.

Abstract: A radio network element includes at least one processor and at least one memory including computer program code. The at least one memory and the computer program code are configured to, with the at least one processor, cause the radio network element to: configure a quasi-co-location-type information entry included in a transmission configuration indication state (S604) for a downlink transmission beam between the radio network element and a user equipment based on at least one beam report, the at least one beam report including at least one transmission parameter for the downlink transmission beam, and the quasi-colocation-type information entry being indicative of one or more sources of inter-beam-interference on the downlink transmission beam at the user equipment; and transmit the transmission configuration indication state including the quasi-co-location-type information entry to the user equipment (S606).