Abstract: According to some embodiments, a method performed by a wireless device comprises receiving a wireless signal Rk over all subcarriers allocated to the wireless device. The signal Rk comprises a phase tracking reference signal (PT-RS) on a subset of subcarriers allocated to the wireless device and the subset comprises at least one non-contiguous subcarrier. The method further comprises computing a de-inter-carrier interference (ICI) filter based on the PT-RS and a channel estimate using a convolutional matrix CR of the received signal Rk and applying the de-ICI filter to the received signal Rk to generate a de-ICI filtered signal.

Abstract: A network node is configured to communicate with a wireless device. The network node includes a radio interface and processing circuitry configured to transmit a configuration of a set of reference signals via RRC signaling to the wireless device. The radio interface and processing circuitry are further configured to transmit a downlink control information, DCI, that triggers the set of reference signals in multiple slots to the wireless device. In some embodiments the DCI has a field which indicates the number of slots in which the DCI should trigger the set of reference signals. In some further embodiments the RRC signaling configures the set of reference signals in a number of slots. A method for a network node, a wireless device and a method for a wireless device are also provided.

Abstract: A method, system and apparatus are disclosed for enabling inter carrier interference compensation for interleaved mapping from virtual to physical resource blocks. In one embodiment, a network node is configured to determine to configure the first signal to be located at a subcarrier except at an edge sub-carrier of a resource block, RB; transmit the configuration of the first signal to the WD; and receive a physical uplink shared channel, PUSCH, signaling and the first signal from the WD based at least in part on the determined configuration. In one embodiment, a WD is configured to perform a de-inter-carrier-interference (de-ICI) filter estimation on a first received signal and a second received signal; apply a de-ICI filter to a third received signal, the de-ICI filter being based on the de-ICI filter estimation; and after the application of the de-ICI filter, de-interleaved map and demodulate the third received signal.

Abstract: A method, wireless device, and network node for increasing the capacity on a control channel when using Frequency Division Multiplexing (FDM) of data and DMRS are disclosed. According to one aspect, a wireless device (WD) is configured to perform intra-symbol frequency division multiplexing of data subcarriers and demodulation reference signal, DMRS, subcarriers. The WD is also configured to apply intra-symbol orthogonal cover codes, OCCs, to the data subcarriers. The WD is further configured to apply intra-symbol cyclic shifts to the DMRS subcarriers.

Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network. The method includes receiving first signaling and second signaling, the first signaling including first Phase Tracking Reference Signaling, PT-RS, on a first set of subcarriers, and the second signaling including second PT-RS on a second set of subcarriers, the first set of subcarriers being non-overlapping with the second set of subcarriers. The disclosure also pertains to related devices and methods.

Abstract: Methods, base stations and wireless devices for dynamic indication of channel state information (CSI) resources are provided. According to one aspect, a method for a wireless device for determining a channel state information reference symbol, CSI-RS, resource set indicated by a base station is provided. The method includes determining a CSI-RS resource set based on an indication of a CSI report setting. The CSI report setting has a one-to-one correspondence to a CSI-RS resource set.

Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network. The method includes receiving first signaling and second signaling, wherein the first signaling includes first Phase Tracking Reference Signaling, PT-RS, on a first set of subcarriers, and the second signaling includes second PT-RS on a second set of subcarriers, wherein the first set of subcarriers is non-overlapping with the second set of subcarriers, wherein receiving the first signaling is based on estimating a phase noise for the first signaling based on the first PT-RS and the second PT-RS. The disclosure also pertains to related devices and methods.

Abstract: A method performed by a radio device 6 for Channel State Information (CSI) feedback in a communication system 1 comprising a Radio Access Network (RAN) node 3 comprises receiving, from the RAN node, information about a CSI Reference Signal (RS) resource, a first CSI type and a second CSI type for feedback. The method also comprises receiving, from the RAN node, a CSI feedback request for CSI measurement and feedback of the first CSI type or the second CSI type. The method also comprises measuring CSI of the indicated type based on signals received on the CSI-RS resource. The method also comprises sending, to the RAN node, a CSI report of the requested CSI type. A corresponding method in a RAN node is furthermore presented herein.

Abstract: A method and system for reporting multi-beam channel state information, CSI, in a wireless device are disclosed. According to one aspect, the method includes providing an indication of a plurality of beam index pairs, (lk, mk), in the UCI in a first transmission, each beam index pair corresponding to a beam k. The method also includes providing an indication of at least one of a beam power, a beam rotation and a channel quality index, CQI, in the UCI in a second transmission. The method also includes transmitting at least one of the indication of beam index pairs, beam power, beam rotation and CQI.

Abstract: Methods and apparatus for configuring, in a network node of a wireless communication network, a reference signal resource. An example method comprises obtaining a combination of one or more components to be used for a reference signal resource, the one or more components being contained in one or more physical resource blocks of a slot; and indicating, to the one or more wireless devices, the combination of the one or more components in the one or more physical resource blocks that are to be used for the reference signal resource.

Abstract: According to some embodiments, a method performed by a wireless device comprises receiving a wireless signal Rk over all subcarriers allocated to the wireless device. The signal Rk comprises a phase tracking reference signal (PT-RS) on a subset of subcarriers allocated to the wireless device. The method further comprises computing a de-inter-carrier interference (ICI) filter based on a cross correlation of the PT-RS and one or more additional subcarriers and applying the de-ICI filter to the received signal Rk to generate a de-ICI filtered signal.

Abstract: A method, system and apparatus are disclosed. According to one or more embodiments, a network node configured to communicate with a wireless device is provided. The network node includes processing circuitry configured to dynamically indicate a mixed numerology to the wireless device for implementation where the mixed numerology corresponds to a first numerology for a data channel and a second numerology for a control channel, the first numerology being different from the second numerology.

Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network, the method comprising receiving signaling on an initial bandwidth part (IBWP) utilising a subcarrier spacing, the subcarrier spacing being based on at least one of a signaling characteristic of received synchronisation signaling and/or information carried in received synchronisation signaling. The disclosure also pertains to related devices and methods.

Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network. The method includes communicating utilising data signaling based on a received control information message, the control information message scheduling multiple occurrences of data signaling, wherein communicating is based on extracting a code block group (CBG) setup for communicating based on the received control information message and/or a CBG configuration. The disclosure also pertains to related devices and methods.

Abstract: A method performed by a radio device 6 for Channel State Information (CSI) feedback in a communication system 1 comprising a Radio Access Network (RAN) node 3 comprises receiving, from the RAN node, information about a CSI Reference Signal (RS) resource, a first CSI type and a second CSI type for feedback. The method also comprises receiving, from the RAN node, a CSI feedback request for CSI measurement and feedback of the first CSI type or the second CSI type. The method also comprises measuring CSI of the indicated type based on signals received on the CSI-RS resource. The method also comprises sending, to the RAN node, a CSI report of the requested CSI type. A corresponding method in a RAN node is furthermore presented herein.

Abstract: According to some embodiments, a method for use in a network node of transmitting channel state information reference signals (CSI-RS) comprises: transmitting, to the wireless device, an indication of the subset of PRBs that the wireless device should use to measure CSI-RS; and transmitting CSI-RS on the indicated subset of PRBs. According to some embodiments, a method for use in a wireless device of receiving CSI-RS comprises: receiving an indication of a subset of PRBs that the wireless device should use to measure CSI-RS associated with an antenna port; and receiving CSI-RS on the indicated subset of PRBs. In some embodiments, the indication of the subset of PRBs that the wireless device should use to measure CSI-RS comprises a density value and a comb offset.

Abstract: An example method is performed by a wireless device in a wireless communication network. The method comprises receiving, from a base station, a control message allocating resources in a bandwidth part for a downlink transmission, the bandwidth part including unlicensed spectrum and being divided into a plurality of bandwidth pieces corresponding to bandwidth units over which listen-before-talk (LBT) is performed. The radio resources used for the downlink transmissions exclude (e.g., by puncturing or rate-matching around) one or more guard bands of a bandwidth piece that is sensed as free for transmission.

Abstract: A method, wireless device and network node are disclosed. According to one aspect, a method for a wireless device includes receiving a configuration of a reference signal resource set from the network node, the reference signal resource set being a set of single-symbol and single antenna port reference signal resources in at least one slot; and based on at least one parameter of the received configuration, determining whether the UE can assume a same antenna port for all reference signal resources of the reference signal resource set.

Abstract: Methods and apparatuses for channel state information (CSI) feedback in a wireless network. In one embodiment, a method includes receiving signaling including a first Non-Zero Power (NZP) CSI-reference signal (RS) configuration for channel measurement; a second NZP CSI-RS configuration; and a CSI interference measurement (CSI-IM) configuration for interference measurement. The method includes receiving a CSI feedback request and estimating the CSI based on at least the signaled first NZP CSI-RS configuration, the second NZP CSI-RS configuration, and the CSI-IM configuration.

Abstract: According to certain embodiments, a method performed by a wireless device comprises determining a quasi-co location (QCL) relation parameter associated with Frequency Range 2 (FR2). The QCL relation parameter associated with FR2 is determined based on a subCarrierSpacingCommon field of a master information block for FR2 received in signaling from a network node. The method further comprises using the QCL relation parameter associated with FR2 when performing an operation of the wireless device for FR2.