Abstract: There is presented a method for a network node for reducing interference in a wireless device (200), the wireless device operating using a time division0duplex. TDD, configuration in a cell, from at least another wireless device operating in a neighbouring cell using another TDD configuration. The TDD configuration is divided into different time units for at least downlink, DL, and uplink. UL, transmission. The method includes assigning time units in the TDD configuration to one of at least two time unit groups, where the assignment of a time unit to a time unit group is based the interference from the neighboring cell using the another TDD configuration. The method further includes using different link adaptions for the at least two time unit groups. The is also presented a network node.

Abstract: There is provided mechanisms for assisting a UE-side beam selection procedure. A method is performed by a network node. The method comprises estimating TRP-side angular information of a CE from uplink signalling received from the UE at a TRP of the network node. The method comprises reporting the TRP-side angular 5 information towards the UE and configuring the UE to perform a UE-side beam selection procedure based on the TRP-side angular information.

Abstract: A network node and a method for transmitting a Transmission Configuration Indication, TCI, update to a UE. The network node associates a first transmit beam with a first reference signal having first Quasi Co-Location, QCL, channel properties. The first transmit beam gives the same first QCL channel properties and is used in data transmission to the UE. Further, the network node determines second QCL channel properties given by a second transmit beam when a beam change is triggered. When the second QCL channel properties is within a QCL channel property range of a second reference signal and when the second reference signal has third QCL channel properties being different from the first QCL channel properties, the network node associates the second transmit beam with the second reference signal, and transmits, to the UE, a TCI update having an indication of the second reference signal.

Abstract: There is provided mechanisms for interference suppression in a wireless communication network. A method is performed by a network node. The method includes determining that uplink sounding is to be performed for a first user equipment served by the network node and located at a location. The method includes providing a notification to a neighbor network node and the first user equipment to participate in the uplink sounding of the first user equipment. The method includes determining to perform a downlink transmission towards a seconduser equipment served by the network node and located at the location. The method includes providing an indication for interference suppression at the location to the neighbor network node before performing the downlink transmission.

Abstract: There is provided mechanisms for triggering user equipment to use a report configuration. A method is performed by a network node. The method comprises triggering user equipment to use a report configuration. According to the report configuration the user equipment are to report at least one metric pertaining to MIMO channel information back to the network node. According to the report configuration the at least one metric is to be based on measurements made by the user equipment on an SSB reference signal. The method comprises receiving reportings of the MIMO channel information from the user equipment in accordance with the triggered report configuration.

Abstract: A method for operating a cell, performed by a network node. The method includes transmitting a frame comprising a set of slots receiving Channel State Information, CSI, reports at least indicative of interference measured by a user equipment using the set of slots, estimating a transmission direction pattern of an adjacent cell relative a transmission direction pattern of the cell based on the received CSI reports, and transmitting a signal to the user equipment based on the estimated transmission direction pattern of the adjacent cell.

Abstract: There is provided mechanisms for beam management. A method is performed by a radio transceiver device. The method comprises obtaining an angle spread value for signal paths towards a second radio transceiver device. The method comprises performing a beam management procedure for selecting which directional beam to use for communication with the second radio transceiver device by transmitting or receiving reference signals in a candidate set of directional beams. Which directional beams to include in the candidate set of directional beams is dependent on the angle spread value by the angle spread value determining sparsity of the directional beams in the candidate set of directional beams.

Abstract: The present disclosure relates to a method a radio base station of determining a current characteristic of a surface, and a radio base station performing the method. In an aspect, a method a radio base station of determining a current characteristic of a surface is provided. The method comprises determining a value of at least one energy property of a signal received from a wireless communication device, which signal has reflected against the surface before arriving at the radio base station, and determining, based on one or more observed signal energy property values each being associated with a characteristic of the surface, the current characteristic of the surface for the determined value of the at least one energy property of the received signal.

Abstract: The present disclosure relates to a method performed by a network node for beamforming, to a network node and to a system including a network node. One aspect of the disclosure provides a method (900) comprising: obtaining (910), at the network node (800), information relating to a plurality of signals received or transmitted using a set of receiving beams or a set of transmitting beams of the network node (800), each individual beam of the set having a unique beam direction; determining a set of candidate beams for use by the network node (800) for synchronisation signal, SS, transmission or random access channel, RACH, detection; based on the obtained information, selecting one or more of the determined candidate beams; and using the selected one or more of the determined candidate beams for SS transmission or RACH detection by the network node (800).

Abstract: Method performed by a first node (101) for managing a movement of a radio antenna (120). The first node (101) operates in a wireless communications network (100). The first node (101) determines (302) whether the movement of the radio antenna (120) is above a threshold over a time period. The radio antenna (120) is connected to a second node (102) operating in the wireless communications network (100). The movement is with respect to at least one wireless device (140) operating in the wireless communications network (100). The determining (302) is based on an analysis of one or more properties of radio transmissions to or from the radio antenna (120) over the time period. The first node (101) initiates (304) providing a message to one of: the second node (102) and a third node (103) operating in the wireless communications network (100). The initiation is based on a result of the determination.

Abstract: Mechanisms for selecting TDD patterns for DL and UL communication in TDD slots on CCs in a cell. A method is performed by a network management node. The method includes performing selection of the TDD patterns for DL and UL communication on CCs in the cell. According to the selection of the TDD patterns, at least one of the CCs is configured with a first TDD pattern, and at least one of the CCs is configured with a second TDD pattern. There is a higher fraction of DL TDD slots in the first TDD pattern than in the second TDD pattern.

Abstract: There is provided mechanisms for beam management. A method is performed by a radio transceiver device. The method comprises obtaining an angle spread value for signal paths towards a second radio transceiver device. The method comprises performing a beam management procedure for selecting which directional beam to use for communication with the second radio transceiver device by transmitting or receiving reference signals in a candidate set of directional beams. Which directional beams to include in the candidate set of directional beams is dependent on the angle spread value by the angle spread value determining sparsity of the directional beams in the candidate set of directional beams.

Abstract: A method, network node and computer storage medium for reducing the impact of interference in a cell from at least another neighbouring cell. The cell operates using a time division duplex, TDD, configuration, and the neighbouring cell operating using another TDD configuration. The TDD configurations are divided into different time units for at least downlink, DL, and uplink, UL, transmissions. The method includes identifying time units in the TDD configuration. The identification of a time unit is based on whether the time unit has a different configuration compared to the time unit in the another TDD configuration used in the neighbouring cell. The method further includes defining a restricted TDD configuration for use in the cell, where the restricted TDD configuration excludes transmission in the identified time units. The method further includes identifying a physical direction in which to apply the restricted TDD configuration.

Abstract: There is presented a method for a network node for reducing interference in a wireless device (200), the wireless device operating using a time division duplex, TDD, configuration in a cell, from at least another wireless device operating in a neighbouring cell using another TDD configuration. The TDD configuration is divided into different time units for at least downlink, DL, and uplink, UL, transmission. The method includes assigning time units in the TDD configuration to one of at least two time unit groups, where the assignment of a time unit to a time unit group is based the interference from the neighboring cell using the another TDD configuration. The method further includes using different link adaptions for the at least two time unit groups. The is also presented a network node.

Abstract: Mechanisms for selecting beam direction for a radio communications device are provided. A method is performed by the radio communications device. The method includes obtaining radio channel estimates of a radio channel on which radio waves have been transmitted between the radio communications device and another radio communications device at an angle of arrival and departure. The method includes determining a Doppler shift from the radio channel estimates. The method includes estimating at least one of the angle of arrival and departure of the radio waves based on the Doppler shift. The method includes selecting a beam direction for a signal to be transmitted between the radio communications device and this another radio communications device over the radio channel according to the estimated angle of arrival or departure.

Abstract: There is provided mechanisms for cross link interference handling. A method is performed by a network node. The network node is configured to control a radio access network node. The method comprises obtaining, through measurements, information identifying cross link interference pertaining to wireless transmission from at least one neighbouring radio access network node. The method comprises controlling the radio access network node by performing a radio resource management action based on TDD configuration information derivable from the obtained information of cross link information of cross link interference. There is provided mechanisms for cross link interference reporting.

Abstract: A network node and a method for transmitting a Transmission Configuration Indication, TCI, update to a UE. The network node associates a first transmit beam with a first reference signal having first Quasi Co-Location, QCL, channel properties. The first transmit beam gives the same first QCL channel properties and is used in data transmission to the UE. Further, the network node determines second QCL channel properties given by a second transmit beam when a beam change is triggered. When the second QCL channel properties is within a QCL channel property range of a second reference signal and when the second reference signal has third QCL channel properties being different from the first QCL channel properties, the network node associates the second transmit beam with the second reference signal, and transmits, to the UE, a TCI update having an indication of the second reference signal.

Abstract: In SIB2 there is an entry containing information on PUSCH power control parameters. The current signaling entity is extended with entries that are dependent on UE operational altitude. For example, an altitude-dependent factor for the alpha parameter, or one parameter range for zero (ground level, default as per of today), one parameter range for intermediate altitude operation, and one entry for high-altitude operations, so that an airborne UE can select its appropriate power control parameters.

Abstract: A method performed by a first radio node for selecting a transmission rank is provided. The radio node is capable of using at least a first antenna beam and a second antenna beam for communication with a second radio node in a wireless communication network. The radio node communicates with the second radio node by using the first antenna beam and a first transmission rank. The radio node obtains second radio parameters for the second antenna beam. The radio node then selects a second transmission rank based on the obtained second radio parameters. The second transmission rank is to be used for communication with the second radio node in the second beam. The selection of the second transmission rank is triggered before obtaining any Rank Indicator (RI) for the second antenna beam.

Abstract: There is provided mechanisms for assigning beams to terminal devices in a communications network. A method is performed by a network node. The method comprises determining an initial set of beams for serving the terminal devices, whereby each terminal device is assigned at least one of the beams. The method comprises obtaining an indication that further beams, in addition to those in the initial set of beams, are available for serving the terminal devices. The method comprises evaluating whether to expand the initial set of beams with the further beams or not, whereby the further beams are assigned to the terminal devices according to a criterion, until a resource utilization threshold is reached.