Abstract: A multi-layer frequency selective surface is disclosed that exhibits a frequency response having a passband and one or more stopbands.

Abstract: A method of operating a first wireless communication device (101) communicating with a second wireless communication device (102) on a device-to-device link (114) in accordance with a pre-established beam pair is provided. The method includes communicating at least one message (4101-4103) indicative of an activation of at least one of a first transmission (181) of first reference signals (191) from the first wireless communication device (101) to the second wireless communication device (102), or a second transmission (182) of second reference signals (192) from the second wireless communication device (102) to the first wireless communication device (101). The activation of the at least one of the first transmission (181) or the second transmission (182) is for use in beam adjustment of the pre-established beam pair at the first wireless communication device (101).

Abstract: A method of operating a wireless communication device (102) in a wireless communication system (100) comprises transmitting a control signal to a node (102) of the wireless communication system (100). The control signal is indicative of a mapping between at least one antenna port (5031-5033) and at least one antenna panel (5023, 5024) of the wireless communication device (102).

Abstract: A reconfigurable device for influencing spatial properties of an incident radio wave comprises a first sheet having characteristics that vary along a first length direction of the first sheet, the characteristics relating to a first influencing of a spatial propagation of an incident radio wave, and a second sheet having characteristics that vary along a second length direction of the second sheet, the characteristics relating to a second influencing of a spatial propagation of an incident radio wave. A first actuator is coupled to the first sheet and configured to move the first sheet along the first length direction so as to selectively place a section of the first sheet in an exposed area of the reconfigurable device. A second actuator is coupled to the second sheet and configured to move the second sheet along the second length direction so as to selectively place a section of the second sheet in the exposed area.

Abstract: According to a first aspect, examples provide a method of operating a first communication node (CN) wherein the first CN is configurable for transmitting, to a second CN on a radio channel, orthogonal frequency-division multiplexing (OFDM) symbols via a first propagation path and a second propagation path, wherein each OFDM symbol comprises a prefix, in particular a cyclic prefix, wherein transmitting the OFDM symbols via the first propagation path comprises transmitting the OFDM symbols to the second CN via a coverage enhancing device, wherein the method comprises providing, to the CED, a message indicative of a delay which is to be applied, by the CED, to incident signals, wherein the first CN selects the delay which is to be applied, by the CED, to the incident signals, to result in an arrival, at the second CN, of a first signal portion transmitted via the first propagation path of a first OFDM symbol being aligned with an arrival, at the second CN, of a second signal portion transmitted via the second pr

Abstract: According to a first aspect, examples provide a method of operating a first communication node (CN), wherein the first CN is configurable for exchanging, with a second CN on a radio channel, signals via a first propagation path and a second propagation path, wherein exchanging the signals via the first propagation path comprises exchanging the signals via a coverage enhancing device (CED), wherein the method comprises providing, to the CED, a message indicative of an activity pattern for establishing the first propagation path. Further examples provide a method of operating a CED, a first CN, a CED and a second CN.

Abstract: Method, carried out in a radio terminal (130), for configuring uplink output power of radio transmission from the radio terminal, comprising determining (402) a demand power reduction (P-MPR1) based on a maximum power level associated with a first uplink duty cycle (UDC1); transmitting (403), to a radio network node (120), an indication (233) of the demand power reduction; receiving (404), from the network node, an indication (253) of a target power reduction (P-MPR2) associated with an actual uplink duty cycle (UDC2); and configuring (406) the output power based on the target power reduction.

Abstract: First signals and second signals are communicated using polarization multiplexing. Different spatial filters are applied at a reconfigurable relaying device for the first and second signals.

Abstract: A method of operating a terminal node (310) configured to communicate with one or more network nodes using a re-configurable relaying device (330), RRD, is provided. The RRD is re-configurable to provide spatial filters, each one of the spatial filters being associated with a respective spatial direction into which incident signals are selectively transmitted by the RRD. The method comprises receiving (6002) a plurality of positioning reference signals, PRSs, transmitted by the one or more network nodes, and, upon a first PRS (363) and a second PRS (362) of the plurality of PRSs being received from a same network node (320) of the one or more network nodes, the first PRS (363) being received along a path which is relayed at the RRD (330): transmitting (6006) a measurement report message comprising positioning information for the terminal node (310) based on at least the first PRS (363) and second PRS (362).

Abstract: A method for use in abase station (121) arranged for radio communication with user equipment, UE, via a time division duplexing, TDD, repeater (300), the method comprising: determining base station configuration of: a first period (BS DL Tx) usable for downlink, DL, communication, a second period (BS UL Rx) usable for uplink, UL, communication, and a guard period (GP) between the first and second periods, and transmitting configuration information to the repeater 300, identifying a starting point (Tu) of a repeater UL slot (REP DL SLOT) having an offset to the second period, wherein said starting point (Tu) is dependent on timing advance (TA) applied by one or more UEs served by the base station.

Abstract: A radio communication terminal (UE2) configured to act as a radar receiver, comprising: —a radio transceiver (323), —logic (320) configured to communicate data, via the radio transceiver, on a radio channel (101), wherein the logic is further configured to obtain (233), via the radio transceiver, a radar probing request (230) to detect radio signal echoes; determine (235) a receive direction (Dir2) based on the request; control the radio transceiver to detect (242) a receive property of the radio signal echoes in said direction; and transmit (261), via the radio transceiver, data (260) associated with the detected receive property to a radio communication device (BS1, UE1).

Abstract: A method performed in a wireless device is disclosed. The present disclosure provides a method, performed in a wireless device, for polarization reporting. The wireless device is configured to communicate with a network node using a plurality of antenna panels of the wireless device, including a first antenna panel. The method comprises generating, based on one or more polarization properties of the first antenna panel, a first polarization indicator associated with a first identifier. The first identifier is indicative of the first antenna panel. The method comprises transmitting a capability report to the network node, the capability report comprising the first polarization indicator associated with the first identifier.

Abstract: A method includes receiving (3006) at least one report signal (813) from at least one relay node (103, 104, 400), the at least one report signal (813) being associated with a plurality of communication links (111-115) formed by a first node (101, 400), a second node (102, 400), and the at least one relay node (103, 104, 400). The method also includes determining (3007) a multi-hop transmission path (192) for communication between the first node (101, 400) and the second node (102, 400) using communication links (111, 112) selected from the plurality of communication links (111-115), based on the at least one report signal (813) and a spectrum access restriction of a spectrum access of the first node (101, 400).

Abstract: Examples provide a method of operating a first communication node, CN.

Abstract: A method carried out in a User Equipment, UE, for facilitating communication with an access node of a wireless network using coherent transmission, CT, the method comprising: transmitting, to the access node, an indication of requirements of the UE for supporting CT associated with switching between Uplink, U L, and Downlink, DL; obtaining, from the access node, radio configuration for transmitting to the access node based on said requirements for supporting CT, wherein said radio configuration is associated with a certain CT time period.

Abstract: A method of operating a wireless communication device (101) includes receiving (3002) at least one downlink control message (411, 412, 4002) from a communications network (100), the at least one downlink control message (411, 412, 4002) being indicative of a frequency density (401-404) of uplink reference signals (31), the uplink reference signals (31) being for an estimation of a radio channel (114) between the wireless communication device (101) and the communications network (100) to coherently decode data signals encoding data of a uplink data transmission (4012), the uplink reference signals (31) and the data signals using the same precoding.

Abstract: A method includes receiving (402) a plurality of reference signals (301-303) at an antenna port of a communication device (101). Each reference signal (301-303) is sent using a corresponding precoder. The precoder is selected from a first set of precoders. The method further includes determining (403) a channel estimate based on the received plurality of reference signals (301-303), and selecting (404) a precoder from a second set of precoders based on the determined channel estimate. The second set of precoders comprises at least one precoder in addition to the precoders of the first set of precoders. The method includes sending (405) an indication (304) relating to the selected precoder.

Abstract: A method of operating a wireless communication device (102) connectable to a communications network (100) includes obtaining an indication of multiple repetitive resources (370) that the wireless communication device (102) is allowed to use for performing a calibration of one or more radio-frequency components; and prior to performing the calibration: selecting at least one resource from the multiple repetitive resources for performing the calibration.

Abstract: A method of operating a node of a communications network includes obtaining a timing parameter associated with a guaranteed availability of an uplink calibration gap for performing a calibration of one or more radio-frequency components of a wireless communication device connected to the communications network, and based on the timing parameter, allocating at least one resource to the wireless communication device for performing the calibration, wherein the at least one resource has a timing that is in accordance with the guaranteed availability.

Abstract: A method (20) performed by a wireless terminal (10) in a wireless communication network (10, 30) is provided. In the method (20), based on a (fundamental) polarization tracking capability of the wireless terminal (10), at least one downlink polarization of at least one downlink communication between the wireless terminal (10) and an access node (30) of the wireless communication network (10, 30) is determined (204). A reference polarization from the at least one downlink polarization is selected (207). Based on the reference polarization and a (momentary) polarization tracking ability of the wireless terminal (10), at least one uplink polarization of at least one uplink communication between the wireless terminal (10) and the access node (30) is configured (210). A corresponding method (40) performed by the access node (30) is also provided, as well as the mentioned wireless terminal (10) and the access node (30).