Abstract: Radio network nodes, wireless devices, and related methods are provided in which a pseudo-random sequence initialization value, which is used during the generation of pseudo-random and/or scrambling sequences, is based, at least in part, on a first identifier, wherein the first identifier is equal to a first parameter if the first parameter has been configured and if a second identifier corresponds to a wireless-device-specific identifier.

Abstract: Systems and methods are disclosed for estimating one or more channel properties of a downlink from a cellular communications network based on quasi co-located antenna ports with respect to the one or more channel properties. In one embodiment, a user equipment receives a downlink subframe including a downlink control channel from the cellular communications network. The user equipment estimates one or more large-scale channel properties for an antenna port of interest in the downlink control channel based on a subset of reference signals that correspond to antenna ports in the cellular communications network that are quasi co-located with the antenna port of interest with respect to the one or more large-scale channel properties. As a result of using the quasi co-located antenna ports, estimation of the one or more large-scale channel properties is substantially improved.

Abstract: There is disclosed a method of operating a transmitting radio node in a wireless communication network. The method includes transmitting first control signaling covering one or more first allocation units in a control transmission time interval, and transmitting second control signaling covering one or more second allocation units in the control transmission time interval, wherein the second control signaling is shifted relative to the first control signaling, and wherein the second control signaling is shifted relative to the first control signaling based on a complex conjugation operation. The disclosure also pertains to related devices and methods.

Abstract: There is disclosed a method of operating a transmitting radio node in a wireless communication network. The method includes transmitting first control signaling covering one or more first allocation units in a control transmission time interval, and transmitting second control signaling covering one or more second allocation units in the control transmission time interval, wherein the second control signaling is shifted relative to the first control signaling. The disclosure also pertains to related devices and methods.

Abstract: A method for reducing the number of beams required per symbol. The method is performed by a base station (gNB). The method includes transmitting reference signals (RSs) and receiving a report from a UE (302), the report identifying a matrix. The method also includes using the identified matrix to transmit data to the UE or schedule the UE. The matrix identified by the UE is equal to (I) and Wps is a port selection matrix and (II) denotes the Kronecker product.

Abstract: Systems and methods for linking Physical Downlink Control Channel (PDCCH) candidates are provided herein. In some embodiments, a method includes: receiving a configuration of a first and second Control Resource Set (CORESET) associated with a first and second Search Space (SS) set; determining that the first and second SS set are configured with a common set of parameters; activating the first and second CORESET with a first and second TCI state; linking a first PDCCH candidate in a first PDCCH monitoring occasion to a second PDCCH candidate in a second PDCCH monitoring occasion; receiving a PDCCH in the first PDCCH candidate and the PDCCH in the second PDCCH candidate; and detecting the PDCCH in the first and the second PDCCH candidates. Some embodiments might provide a simple way for linking PDCCH candidates in two SS sets to support both intra-slot and inter-slot PDCCH repetition in either TDM or FDM manner.

Abstract: In one embodiment, a method performed by a wireless device comprises receiving Downlink Control Information (DCI) that schedules Physical Uplink Shared Channel (PUSCH) repetitions to Transmission/Reception Points (TRPs) where the PUSCH is configured with a maximum rank larger than 2. The DCI comprises an antenna ports field that indicates two or more Demodulation Reference Signal (DMRS) ports and either: a single PTRS-DMRS association field or two PTRS-DMRS association fields. The method further comprises determining a DMRS port associated with a Phase Tracking Reference Signal (PTRS) port for PUSCH transmissions to a first TRP based on either a most significant bit (MSB) of the single PTRS-DMRS association field or the first PTRS-DMRS association field and determining a DMRS port associated with a PTRS port for PUSCH transmissions to a second TRP based on either a least significant bit (LSB) of the single PTRS-DMRS association field or the second PTRS-DMRS association field.

Abstract: According to certain embodiments, a method (1100) by a wireless (110) is provided for receiving (1102), from a network node (160), an indication of a particular one of a plurality of sounding reference signal, SRS, configurations for an antenna switching configuration, ASC. At least one SRS is transmitted (1104) to the network node based on the particular one of the plurality of SRS configurations for the ASC.

Abstract: According to some embodiments, a wireless device comprises up to eight transmit and receive chains. A method performed by the wireless device comprises: obtaining a sounding reference signal (SRS) antenna switching capability of the wireless device, the antenna switching capability including one or more antenna switching configurations (ASCs); transmitting the SRS antenna switching capability to a network node; and receiving, from the network node, a SRS configuration for one or more SRS resource sets based on at least one of the ASCs.

Abstract: According to certain embodiments, a method performed by a wireless device comprises receiving sounding reference signal (SRS) configuration information from a network node. The SRS configuration information indicates a configuration associated with one or more SRS resources. At least a portion of the SRS configuration information is received in one or more Medium Access Control-Control Element (MAC-CE) messages. The method further comprises configuring the one or more SRS resources based at least in part on the SRS configuration information.

Abstract: There is disclosed a method of operating a radio node in a wireless communication network. The method includes communicating utilising data signaling carrying a data block having a data block size, wherein the data signaling starts in time domain at a starting allocation unit, the data block size being dependent on a position in time domain on a reference allocation unit associated to reference signaling, the reference allocation unit trailing the starting allocation unit in time domain. The disclosure also pertains to related devices and methods.

Abstract: A network node signals to a wireless communication device which precoders in a codebook are restricted from being used. The network node in this regard generates codebook subset restriction signaling that, for each of one or more groups of precoders, jointly restricts the precoders in the group by restricting a certain component (e.g., a certain beam precoder) that the precoders in the group have in common. This signaling may be for instance rank-agnostic signaling that jointly restricts the precoders in a group without regard to the precoders' transmission rank. Regardless, the network node sends the generated signaling to the wireless communication device.

Abstract: A method, network node and wireless device for efficient signaling of rate matching patterns are disclosed. According to one aspect, a network node is configured to indicate to a wireless device whether at least one resource element, RE, associated with a reference signal is one of available and not available for physical downlink shared channel, PDSCH-to-RE mapping, the at least one RE associated with the reference signal being at least one RE in a same orthogonal frequency division multiplex, OFDM, symbol as the reference signal; and transmit signaling according to the PDSCH-to-RE mapping, the PDSCH being one of mapped and not mapped to the at least one RE associated with the reference signal based on the indication. According to another aspect, a wireless device is configured to receive the indication from the network node; and receive the PDSCH based on the indication.

Abstract: There is provided a method in a wireless device for uplink transmissions associated with a plurality of reference signal (RS) resources that belong to a plurality of resource sets. The method comprises: receiving downlink control information (DCI) indicating an uplink transmission, the DCI further comprising an indication of one or more RS resources from the plurality of RS resources, the one or more RS resources belonging to the plurality of resource sets; and performing the uplink transmission based on the indication of the one or RS resources in the DCI.

Abstract: There is disclosed a method of operating a transmitting radio node in a wireless communication network. The transmitting radio node is adapted to transmit communication signaling utilising a DFT-s-OFDM-based waveform. The method includes transmitting reference signaling, the reference signaling being based on a Zadoff-Chu sequence. The disclosure also pertains to related devices and methods.

Abstract: A method (700) for precoding a signal. The method includes determining (s702), based on uplink, UL, measurements, a spatial domain (SD) precoding vector and a frequency domain (FD) precoding vector for a downlink (DL) transmission of the signal. The method also includes applying (s704) the FD precoding vector to the signal over subcarriers for carrying the signal, thus producing a modified signal. The method further includes applying (s706) the SD precoding vector to the modified signal to produce a precoded signal, wherein the SD precoding vector is common for all said subcarriers in one symbol.

Abstract: A system and method for providing time domain allocations in a communication system. In an embodiment, an apparatus operable in a communication system and including processing circuitry is configured to receive an indication of a time domain allocation in downlink control information associated with a radio network temporary identifier (“RNTI”) identifying the apparatus, and employ the time domain allocation associated with the RNTI for transmissions associated with the apparatus. In another embodiment, an apparatus operable in a communication system and including processing circuitry is configured to associate a time domain allocation with a RNTI identifying a user equipment, and provide an indication of the time domain allocation in downlink control information to allow the user equipment to employ the time domain allocation associated with the RNTI for transmissions associated therewith.

Abstract: A method by a wireless device for computing channel state information (CSI) includes obtaining an overlapping N-port CSI-RS resource definition that overlaps with an M-port CSI-RS resource definition. A number N of ports associated with the overlapping N-port CSI-RS resource definition is less than a number M of ports associated with the M-port CSI-RS resource definition. The wireless device calculates N-port CSI based on the overlapping N-port CSI-RS definition and reports the N-port CSI to a network node.

Abstract: Techniques disclosed herein provide for prohibiting use by a User Equipment (UE) (12) of configured Tracking Reference Signals (TRSs) (30). For example, under certain conditions or circumstances, the UE (12) is prohibited from using any configured TRS (30) for time or frequency tracking, for reception by the UE (12) of a physical downlink channel (32). For example, when TRS usage is prohibited for time or frequency tracking for reception of a physical downlink channel (32), the UE (12) uses Demodulation Reference Symbols (DMRS) transmitted for the physical downlink channel (32), for such time or frequency tracking.

Abstract: A technique for transmitting and receiving a configuration message for a phase tracking reference signal, PT-RS, on a radio channel between a radio access node and a radio device is described. The radio channel comprises a plurality of subcarriers in a physical resource block, PRB. A subset of the subcarriers in the PRB is allocated to a demodulation reference signal, DM-RS. As to a method aspect of the technique, the configuration message is transmitted to the radio device. The configuration message comprises a bit field that is indicative of at least one subcarrier allocated to the PT-RS among the subset of subcarriers allocated to the DM-RS.