Abstract: A technique for transmitting data on at least two subbands (602) of a radio channel (600). As to a method aspect of the technique performed by a radio device, control information indicative of at least two precoders for the at least two subbands (602) of the radio channel (600) is received. The data is transmitted on the at least two subbands (602) using the at least two precoders.

Abstract: There is provided mechanisms for interference handling. A method is performed by a radio access network node. The method comprises obtaining an indication of interference in a time/frequency interval. The method comprises querying a neighbouring radio access network node about scheduling in the time/frequency interval of uplink wireless transmission from any terminal device served by the neighbouring radio access network node. The method comprises receiving a response from the neighbouring radio access network node. The response comprises information identifying uplink reference signal resources/ports, and their scheduling, as to be used by the terminal device scheduled in the time/frequency interval.

Abstract: According to some aspects of the techniques disclosed herein, a UE adapted to transmit on different antenna subsets transmits an indication that the UE can transmit a number of distinct RS resources, where each of the RS resources comprises at least one RS port. The UE transmits capability information indicating that the UE is capable of transmitting simultaneously on multiple RS resources and/or receives first and second RS configurations, where the first RS configuration is a first list of SRS resources that at least correspond to RS resource indications used for PUSCH transmission, and the second RS configuration is a second list of RS resources that may be used for SRS transmission. The UE receives an indication of at least one RS resource and transmits a physical channel on antennas of the UE associated with the indicated RS resources.

Abstract: A camera arrangement comprises a camera head, a holder ring and a holder base. The camera head has an imaging unit and an interaction portion with constant cross section. The camera holder ring has an inner surface configured to fit onto the interaction portion of the camera head, and the camera holder base has a receptacle orifice dimensioned to receive the camera holder ring fitted onto the interaction portion of the camera head and grip an outer surface of the holder ring. The receptacle orifice has reduced dimensions due to a tightening function to fixate the camera holder ring and the camera head in relation to the camera holder base, and thereby to fixate an orientation of the camera in relation to the camera holder base. The camera holder ring is movable along a length of the interaction portion until the tightening function of the receptacle orifice has been actuated.

Abstract: There are provided mechanisms for beam selection. A method is performed by a first radio transceiver device. The method comprises obtaining link quality estimates of a radio signal conveyed to the first radio transceiver device from a second radio transceiver device by means of at least a first beam taken from a first beam set and a second beam. The second beam is wider than the first beam. The method comprises selecting which one of the first beam and the second beam to use for continued communications of radio signals with the second radio transceiver device in accordance with a comparison between the link quality estimates of the first beam and compensated link quality estimates of the second beam.

Abstract: A method, network node and wireless device (WD) providing a framework for simultaneous multi-panel uplink (UL) transmission are disclosed. According to one aspect, a method in a network node includes configuring the WD with at least two transmission configuration indicator (TCI) states. The method also includes transmitting downlink control information (DCI) comprising an indication of a first TCI state and a second TCI state to be activated by the WD. The method also includes receiving a first physical uplink shared channel (PUSCH) transmission occasion or a first set of PUSCH layers transmitted using a first spatial filter associated with the first TCI state. The method also includes receiving a second PUSCH transmission occasion or a second set of PUSCH layers transmitted using a second spatial filter associated with the second TCI state.

Abstract: One way to increase robustness against beam pair link failure is by transmitting downlink (DL) control signaling (e.g., PDCCH) in more than one beam. That is, one way to mitigate BPLF is for the UE to receive DL control signaling over both a first BPL (e.g., active BPL) and a second BPL (e.g., monitored BPL) but with larger duty cycle for the second BPL compared to the first BPL. For example, the control signaling can be scheduled every slot on the first BPL and scheduled every Nth slot on the second BPL. In this way, in case the first BPL is blocked and the UE cannot decode the control signaling on the first BPL, the UE can receive control signaling transmitted on the second BPL.

Abstract: A method for acquiring an indication of a preferred beam of a wireless communication device is disclosed. The method is performed in a network node of a cellular communication network. The network node is adapted to support a plurality of beams of a signal beam-forming scheme and to communicate with the wireless communication device using at least one beam of the plurality of beams. A message indicative of the beam power setting is transmitted to the wireless communication device. Measurement signals are also transmitted. A report indicative of the preferred beam is received from the wireless communication device. The preferred beam is determined by the wireless communication device based on the measurement signals and the beam power setting. Corresponding methods for the wireless communication device, as well as corresponding arrangements, network node, wireless communication device, cellular communication network, and computer program products are also disclosed.

Abstract: A method, network node and wireless device (WD) for dynamic non-coherent joint transmission channel state information (CSI) indication are disclosed. According to one aspect, a method in a network node includes transmitting a first indication of a set of channel measurement resources (CMRs) for CSI. The CSI includes at least one of: a first CSI for multiple transmission and reception point (multi-TRP) physical downlink shared channel (PDSCH) transmission, and at least one second CSI for PDSCH transmission from one TRP. The method includes transmitting a second indication of a first subset of the set of CMRs to use for determining the first CSI. The method includes configuring the WD to use a second subset of the set of CMRs for determining the at least one second CSI, and receiving a CSI report comprising at least one of the first CSI and the at least one second CSI.

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: 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: A method performed by a user equipment (UE) comprises receiving information that configures the UE with: (a) Non-Zero Power (NZP) Channel State Information Reference Signal (CSI-RS) resources for channel measurement each associated with a different Transmission Configuration Indicator (TCI) state or unified TCI state, (b) a single NZP CSI-RS resource for channel measurement comprising multiple sets of CSI-RS ports each associated with a different TCI state or unified TCI state, or both (a) and (b). The information further configures the UE with a parameter combination indicating at least a number of frequency domain (FD) basis vectors to be selected and reported per layer across the NZP CSI-RS resources or the sets of CSI-RS ports, or for each of the NZP CSI-RS resources or each of the of CSI-RS ports and a number of precoding matrix indicator (PMI) subbands. The method further comprises computing and reporting CSI accordingly.

Abstract: According to some embodiments, a method performed by a wireless device comprising receiving a sounding reference signal (SRS) configuration comprising an indication of a size of a fractional portion of an SRS bandwidth and a location of the fractional portion of the SRS bandwidth to use for sounding and transmitting SRS according to the received SRS configuration.

Abstract: A method, network node and wireless device (WD) for common spatial filter indications for reference signals in multiple transmission reception point (TRP) systems are disclosed. According to one aspect, a method in a WD includes receiving at least one of an activation command and an indication for a first and second unified transmission configuration indicator (TCI) state of a plurality of unified TCI states, each of the first and second unified TCI states including quasi co-location (QCL) information for at least one of downlink reception and uplink transmission of a plurality of at least one of physical channels and reference signals by the WD. The method also includes receiving an association of each of a plurality of references signals with one of the first and second unified TCI states.

Abstract: A network node configured to communicate with a wireless device (WD) is described. The network node comprises processing circuitry configured to determine a configuration for the WD to perform at least one timing advance (TA) action for first and second groups of uplink physical channels and reference signals. The determined configuration includes information about first and second TA groups (TAGs). The first and second TAGs are associated with the first and the second groups of uplink physical channels and reference signals, respectively. The first and second TAGs are for a same serving cell. The network node further includes a radio interface in communication with the processing circuitry. The radio interface is configured to transmit the determined configuration to the WD.

Abstract: A method, network node and wireless device (WD) for common spatial filter indications for control resource sets (CORSETs) in multiple transmission reception point (TRP) systems are disclosed. According to one aspect, a method in a network node includes activating a plurality of transmission configuration indication (TCI) states. The method also includes configuring a beam index information element (IE) to associate a CORESET to at least one of the unified TCI states.

Abstract: There is provided mechanisms for performing a beam management procedure. A method is performed by a network node. The method comprises obtaining configuration information from a terminal device for which the network node provides network access. The configuration information specifies that the terminal device is in need for evaluating different polarization states in different time units during the beam management procedure. The method comprises performing the beam management procedure with the terminal device. The beam management procedure involves the network node to, per slot, transmit reference signals according to a reference signal transmission scheme. The reference signal transmission scheme depends on the obtained configuration information.

Abstract: Mechanisms for beam management. An example method, in a network node, comprises transmitting a reference signal so as to enable each of the terminal devices participating in a first part of the beam management procedure to identify in which of a first set of beams the reference signal is received with highest power. The method comprises transmitting the reference signal in a second part of the procedure so as to enable each of the terminal devices to identify in which of a second set of beams the reference signal is received with highest power. The method comprises transmitting the reference signal during a third part of the procedure so as to enable each of the terminal devices to identify in which of a third set of beams the reference signal is received with highest power. There is one third set for each beam in the first set.