Abstract: A method of operating a device (101, 102) includes selecting between a first operational mode (8098) and a second operational mode (8099) for a wireless link (111) established between a terminal (102) and a base station (101) of the network; in response to selecting the first operational mode (8098): determining first values for antenna weights from a plurality of predefined candidate values; and in response to selecting the second operational mode (8099): determining second values for the antenna weights based on a calculation using a receive property of pilot signals (4021) communicated between the terminal (102) and the base station (101) as an input.

Abstract: A method of operating a transmitter node (101) configured to communicate with one or more receiver nodes (102-104) using a re-configurable reflective device, RRD (109), is provided. The RRD (109) is re-configurable to provide multiple spatial filters, each one of the multiple spatial filters being associated with a respective spatial direction (351-353) into which incident signals are selectively reflected by the RRD (109). The method includes repeatedly transmitting reference signals (198) towards the RRD (109) at one or more transmit periods (551-554).

Abstract: The present application relates to methods for operating a terminal device and a base station of a cellular wireless multiple-input and multiple-output, MIMO, system. An uplink precoding for transmitting uplink signals from a plurality of antenna elements of the terminal device to the base station is determined. An uplink pilot signal using the uplink precoding and a radio resource of a transmission frame of the MIMO system is transmitted from the plurality of antenna elements. At the base station, a downlink precoding and uplink receive parameters are adjusted based on a receive property of the precoded uplink pilot signal from the terminal device.

Abstract: An antenna assembly (10) includes a substrate (24) and an array of antenna elements (26). Each antenna element is supported by the substrate at respective locations so that the antenna elements are arranged in space in a helix pattern (28). The helix pattern has a pitch along an axis about which the helix pattern turns. An arc length spacing of the antenna elements along the helix pattern and the pitch are arranged so that, in a transmit mode, a radio frequency (RF) signal fed to each of the antenna elements results in emission of a radiated signal with a rotational wave front from the antenna assembly at a first frequency and a first mode.

Abstract: A method for operating an access node for transmission of radio signals in a plurality of beams of a beam sweep, includes: transmitting a first radio signal using a first polarization in a first beam having a first beam direction, and transmitting a second radio signal using a second polarization, which is different from the first polarization, in a second beam in said first beam direction, wherein the transmission of the first radio signal is linked to the transmission of the second radio signal in accordance with a predetermined rule. By means of such a link, a communication device may determine, based on the predetermined rule, that the first and second beams have a common directionality, but are configured for transmission with different, preferably orthogonal, polarization.

Abstract: A method of operating a wireless communication device (102) configured to connect to a communications network (100) includes: monitoring for multiple downlink reference signals (411) transmitted by at least one access node of the communications network (100) using multiple downlink transmit beams (361-364), each one of the multiple downlink reference signals (411) being associated with a respec-five at least one of multiple random-access occasions (415-418); and accessing at least two random-access occasions (415, 418) of the multiple random-access occasions (415-418), the at least two random-access occasions (415, 418) being associated with at least two downlink reference signals (411) selected from the multiple downlink reference signals (411) based on said monitoring and establishing a multibeam operation between the wireless communication device (102) and the communications network (100), wherein the multi-beam operation is established based on at least two downlink transmit beams (361,364) used for trans

Abstract: A method of operating a wireless communication device (102) configured to communicate with a communications network (100) using frequency duplex transmission in an uplink frequency band (601) and in a downlink frequency band (602) is provided. The method includes monitoring for first downlink reference signals (445, 6052) transmitted by an access node (101) of the communications network (100) in the uplink frequency band (601) and using multiple first downlink transmit beams (351-354); and monitoring for second downlink reference signals (411, 446) transmitted by the access node (101) of the communications network (100) in the downlink frequency band (602) and using multiple second downlink transmit beams (361-364).

Abstract: The present application relates to a method for operating a device (30) of a wireless multiple-input and multiple-output, MEM, system (10) providing a wireless communication between the device (30) and a network node (20) of the MIMO system (10).

Abstract: A method for operating a network node (100) in a wireless communication network is provided. The method comprises transmitting at least one beamformed signal (20-27). Each one of the at least one beamformed signal (20-27) is indicative of a respective positioning information. The respective positioning information is indicative of a respective virtual reference point (40-47) which is offset from a position of a transmit point (50) of the wireless communication network used for transmitting the at least one beamformed signal (20-27). The beamformed signal (20-27) is suitable for enabling a positioning measurement of a wireless communication device (200).

Abstract: A method of configuring a multichannel uplink transmission (199) comprising multiple channels (151, 152, 159, 451, 452) between a wireless communication device (102) and multiple receive panels (1013-1, 1013-2) of at least one network node (101) is provided. The multiple receive panels (1013-1, 1013-2) and the at least one network node (101) are connected via backhaul links (1018-1, 1018-2). The method is carried out by the wireless communication device (102). The method comprises receiving, from the at least one network node (101), a downlink message encoding control data (4001) for the multichannel uplink transmission (199), the control data (4001) being associated with the backhaul links. The method further comprises configuring the multichannel uplink transmission (199) based on the control data (4001).

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: The present application relates to methods for operating a wireless communication device (20). According to an embodiment, the method comprises transmitting, on a wireless link between the wireless communication device (20) and a further wireless communication device (30, 40, 50), at least one first signal (301) using a first polarization (501), transmitting, on the wireless link, at least one second signal (302) using a second polarization (502), and transmitting, on the wireless link, at least one third signal (303) using a third polarization (503). The first polarization (501), the second polarization (502), and the third polarization (503) are different from each other. Based on the at least one first signal (301), the at least one second signal (302), and the at least one third signal (303), channels of the wireless link associated with the at least one first signal (301), the at least one second signal (302), and the at least one third signal (303) are sounded.

Abstract: The present application relates to methods for operating a communication device. According to an embodiment, the method comprises transmitting configuration data indicating a first polarization of a first radio frequency signal and a second polarization of a second radio frequency signal, transmitting the first radio frequency signal using the first polarization, and transmitting the second radio frequency signal using the second polarization.

Abstract: A method is disclosed, performed in a radio network node, for handling interference caused by a plurality of wireless terminals served by the radio network node. The method comprises transmitting, to at least one wireless terminal of the plurality of wireless terminals served by the radio network node, a message indicative of a beam width restriction criterion to be applied to transmissions from the at least one wireless terminal.

Abstract: A method is disclosed performed by a Wireless Device (WD) for handling one or more private transmissions (PT) from the WD in a wireless communication network. The method comprises receiving synchronization signaling occupying one or more first resource elements of a synchronization signal burst transmitted by a radio network node. The method comprises communicating PT in one or more second resource elements located on same time resources as the synchronization signal burst, wherein the one or more second resource elements are different from the one or more first resource elements.

Abstract: A method in a communication device (30) for transmitting a beam report (823) to an access node (20) of a wireless network (1), the method comprising transmitting (810,817) a capability indication (820) to the wireless network to announce capability to perform interference reduction between received beams; receiving (812) a first beam (50) and a second beam (51) of an access node beam sweep (802); determining (814) first link quality metric for the received beams; determining (815) second link quality metric for the received beams based on applied interference reduction in the communication device; transmitting (817) a beam report (823) based on at least one of first and second link quality metric.

Abstract: Disclosed is a method, performed by a network node, for interference coordination for side-link communication between a first and a second User Equipment, UE. The method comprises sending, to the first and second UE, information allowing the first and the second UE to perform a side-link beam sweep for establishing a side-link beam pair in a set of resources. The method comprises sending, to other wireless nodes in the network, wherein other wireless nodes are bystanders to the side-link communication, information indicating that a potentially interfering transmission is to occur in the set of resources allowed for the side-link beam sweep of the first and the second UE. The method comprises receiving, from the first and/or the second UE, beam pair information indicative of one or more beam pairs intended for side-link communication between the first and the second UE.

Abstract: A method for controlling radio transmission, carried out in a wireless terminal (10), comprising obtaining (435), from a wireless network (100,120), a transmission grant (430) which gives the wireless terminal permission to transmit a radio signal, wherein said transmission grant is indicative of a spatial limitation associated with the permission to transmit; and transmitting (440) the radio signal in accordance with said spatial limitation.

Abstract: An access node (120) of a wireless network (100), comprising a wireless transceiver (313) coupled to an antenna arrangement (314) for communication of radio signals in a plurality of beams; logic (310) configured to control the wireless transceiver to: transmit (505) a plurality of synchronization signals in a period (P) of a beam sweep, in which each of said synchronization signals identifies a beam-specific resource to be used when responding to the beam sweep; and monitor (560) omni-directionally dedicated resources allocated for reception of a low latency message (55) from a wireless terminal (10). The dedicated resources may be are allocated throughout said period, allowing for unscheduled transmission of the message to the access node.