Abstract: In one embodiment, a method performed by a User Equipment (UE) comprises, for each of one or more Resource Blocks (RBs) allocated for a configured Phase Tracking Reference Signal (PT-RS) port, determining a PT-RS subcarrier offset for the PT-RS port from a table based on a Demodulation Reference Signal (DMRS) port associated to the PT-RS port, a DMRS configuration type, and a resource element offset parameter configured for the UE. The associated DMRS port is one of a plurality of DMRS ports. Each row of the table is associated with one DMRS port and defines different PT-RS subcarrier offsets for a PT-RS port associated to that DMRS port for different resource element offset parameter values for at least one DMRS configuration type. The method further comprises, for each of the allocated RBs, transmitting/receiving a PT-RS on the PT-RS port in the RB in accordance with the determined PT-RS subcarrier offset.

Abstract: A user equipment (120), which has been configured by a network (110) to operate as coordinator UE in a reconfigurable virtual user equipment, RVUE, which further includes at least one non-coordinator UE. The coordinator UE is configured to: indicate to the network a capability of RVUE-coordinated beam management; receive from the network a configuration of a RVUE-coordinated beam management procedure, in which a beam-reporting task is delegated from the non-coordinator UEs to the coordinator UE; and perform measurements and reporting in accordance with the configuration of the RVUE-coordinated beam management procedure. In some embodiments, the coordinator UE is configured to transmit a beam report (310) with a mandatory report part (311) and an optional report part (312), where the mandatory report part indicates a beam preferred by the coordinator UE (e.g., on the basis of its own measurements), and the optional report part indicates a beam preferred by a non-coordinator UE.

Abstract: There is provided a repeater node for dual-polarized beamforming towards user equipment. The repeater node comprises a first antenna array for communication with a transmission and reception point of a network node, and a second antenna array for communication with the user equipment. The first antenna array comprises antenna elements of a first polarization and antenna elements of a second polarization. The second antenna array comprises antenna elements of a third polarization and antenna elements of a fourth polarization. The antenna elements of the first antenna array are connectible to the antenna elements of the second antenna array via circuitry. The antenna elements of each of the first polarization and the second polarization in the first antenna array are, via the circuitry, connectable to antenna elements of both the third polarization and the fourth polarization in the second antenna array.

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: A method (200) performed by a UE (102). The method includes receiving (s202) one or more messages for activating at least i) a first set of configured TCI states and ii) a second set of configured TCI states, wherein the first set of activated TCI states is associated with a first PCI and indicates a first set of reference signals, and the second set of activated TCI states is associated with a second PCI and indicates a second set of reference signals. The method also includes performing (s204) beam failure detection, BFD, monitoring. Performing the BFD monitoring comprises: determining (s206) whether a beam failure with respect to the first PCI has occurred based on the first set of reference signals; and determining (s208) whether a beam failure with respect to the second PCI has occurred based on the second set of reference signals.

Abstract: The invention relates to a wireless communication device 1 having an upper part 10 and a bottom part 11, the upper part 10 comprising one or more transmission antenna device(s) 12a, 12b; 15. The upper part 10 and the bottom part 11 are arranged movably in relation to each other, so that the bottom part 11, in use mode, is closer to the user than the upper part 10. The bottom part 11 comprises one or more reception antenna device(s) 14a, 14b, 14c, 14d.

Abstract: According to some embodiments, a method performed by a wireless device for transmitting on a plurality of antennas comprises signaling, to a network node, a wireless device power transmission capability. The wireless device power transmission capability identifies a power ratio value of a plurality of power ratio values that the wireless device supports for transmission of a physical uplink channel. Each value of the plurality of power ratio values corresponds to a transmission power capability and to a number of antenna ports. A power ratio refers to a ratio relative to a maximum power the wireless device is rated to transmit. The method further comprises transmitting a physical uplink channel using the 0 number of antenna ports with a power scaled at least by the power ratio value.

Abstract: A method, system and apparatus are disclosed. A wireless device (WD) configured to communicate with a network node is described. The WD is configured for allocating demodulation reference signal (DMRS) ports for physical uplink shared channel (PUSCH) transmission. The WD is configured to receive an indication of a codepoint of an antenna port field for scheduling a PUSCH, the codepoint indicating an allocation of DMRS ports to at least a first code division multiplexing, CDM, group, the indication indicating at least 5 PUSCH, layers. The WD is also configured to determine a DMRS port configuration based at least in part on the codepoint and to transmit reference signaling according to the determined DMRS port configuration.

Abstract: A method of transmitting an uplink transmission by a wireless device is disclosed. The method comprises a wireless device receiving signaling configuring the wireless device with a plurality of Sounding Reference Signal (SRS) resources. The wireless device subsequently receives an indication, in a physical layer downlink control channel, of a selected plurality of SRS resources selected from among the plurality of configured SRS resources and transmits a plurality of multiple-input multiple-output (MIMO) layers of a PUSCH transmission. The selected plurality of SRS resources map to respective ones of the plurality of MIMO layers and the indication of the selected plurality of SRS resources includes SRS resource indexes with a fixed order that corresponds to an order in which the SRS resources of the selected plurality of SRS resources are mapped to the MIMO layers.

Abstract: Provided are communication methods and related devices and nodes for prohibition, allowance, or adaption of a sounding reference signal (SRS) configuration having a non-supported SRS sequence length. A method performed by a communication device comprises at least one of (i) receiving a SRS configuration from a network node having an SRS sequence length that is non-supported by the communication device, the SRS configuration involving at least one of a bandwidth configuration, a transmission comb configuration, and a partial sounding factor configuration, and (ii) not receiving the SRS configuration based on a determination by the network node that the SRS configuration has an SRS sequence length that is not supported by the communication device. The method also comprises prohibiting or allowing the SRS configuration.

Abstract: According to some embodiments, a method performed by a wireless device comprises obtaining an SRS configuration for an SRS resource having a base SRS sequence. The SRS configuration comprises a number of SRS ports in the SRS resource, a transmission comb of value 8, and an indication of a set of cyclic shifts for use with the SRS resource. The indicated set of cyclic shifts is a subset of a set of cyclic shifts of the base SRS sequence. Each cyclic shift in the subset of cyclic shifts results in an SRS sequence orthogonal to the base SRS sequence. The method further comprises transmitting an SRS using transmission comb 8 and the indicated set of cyclic shifts.

Abstract: There is provided mechanisms for determining a UL MIMO transmission state for a UE. A method is performed by a network node. The method comprises obtaining interference affecting network information for the UE. The method comprises signalling an indication of the UL MIMO transmission state towards the UE. The UL MIMO transmission state reflects a rank value. The rank value is a function of the interference affecting network information.

Abstract: A method, system and apparatus for artificial intelligence/machine learning (AI/ML) operations via wireless device (WD) measurement uncertainty signaling are disclosed. According to one aspect, a network node is configured to receive a reference signal strength indicator measurement report, the measurement report including an indication of measurement uncertainties. The network node is configured to train a machine learning model to use the measurement report and the indicated uncertainties to predict at least one best beam.

Abstract: A method, network node and wireless device are disclosed. According to one aspect, a method in a network node configure to communicate with a wireless device (WD) includes determining a first code division multiplexing (CDM) group corresponding to super orthogonal antenna ports for which only the first WD is co-scheduled. The method also includes transmitting an indication of a codepoint of an antenna port field, the codepoint indicating an allocation of demodulation reference signal (DMRS) ports to the determined first CDM group, the indication indicating at least 5 physical downlink shared channel (PDSCH) layers.

Abstract: Systems and methods are disclosed herein for Channel State Information (CSI) reporting with angle and delay reciprocity. Embodiments of a User Equipment (UE) and a method of operation thereof are disclosed. Embodiments of network node and a method of operation thereof are also disclosed.

Abstract: A method performed by a wireless device of configuring uplink sounding transmissions is provided. The method includes receiving, from a network node, receiving, from a network node, different sets of configuration parameters for sounding signal transmissions for the wireless device. Each of the different sets of configuration parameters includes a time-domain parameter and different frequency allocations. The method further includes receiving, from the network node, downlink control information, DCI, comprising information that indicates which of the configured frequency allocations that should be applied for the SRS transmission. Furthermore, the method includes generating a sounding reference signal based on the received DCI.

Abstract: There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device comprises at least two physical antenna ports. The method comprises obtaining channel information. The method comprises determining, for at least one given precoder in a codebook, an uplink reference signal to physical antenna port mapping based on the channel information. The method comprises transmitting uplink reference signals in the physical antenna ports according to the determined mapping.

Abstract: There is provided techniques for controlling an RIS. The RIS comprises a controller entity and a reflector entity. The reflector entity is associated with configurable reflection properties defining how radio waves that impinge the reflector entity are reflected. The reflection properties are controlled by the controller entity. A method is performed by a network node. The method comprises determining that the RIS to refrain from reflecting signals communicated in radio waves between the network node and a user equipment. The method comprises, in response thereto, providing an indication to the controller entity for the RIS to enter a non-relay mode according to which the reflector entity is to apply a default configuration of the reflection properties.

Abstract: A communication device transmits a first SRS at a first time instance and a second SRS at a second time instance separated in time by a gap period from the first time instance. The communication device transmits the first SRS and the second SRS using a same antenna port, without transmitting other SRS signals from the same antenna port during the gap period.

Abstract: A method, network node and wireless device (WD) for demodulation reference signal (DMRS) co-scheduling assumptions are disclosed. According to one aspect, a method in a WD includes receiving an indication of DMRS ports for which a sub-length orthogonality property of a frequency domain orthogonal cover code (FD-OCC) can be used to separate DMRS ports. The method also includes separating DMRS ports based on a co-scheduling assumption that other co-scheduled WDs are scheduled with DMRS ports that are sub-length orthogonal to the indicated DMRS ports.