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 device (112, 130) is configured to communicate data (108) on a radio channel (101, 105, 106) according to a radio access technology. The radio access technology comprises pilot signals and transmission blocks for the data (108). The device (112, 130) is further configured to participate in the radar probing (109) employing at least some of the pilot signals as radar probe pulses of the radar probing (109).

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 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 radio communication terminal (UE1) configured to act as a radar device, comprising a wireless communication chipset (313) including a transmitter (314) and a receiver (315), and logic (310) configured to control the wireless communication chipset to communicate on a radio channel (120) in a wireless communication system; execute radar probing (130) during a probing period, including to transmit a radar signal (140) using the transmitter and sense receive properties of a reflection (150) of the radar signal using the receiver; inhibit transmission of communication signals from the communication terminal during said probing period; and receive communication signals on the radio channel during said probing period.

Abstract: Methods (10, 30) and devices (20, 40) for performing radio transmissions in a wireless communication network are provided. A method (30) associated with a wireless terminal (40, 40A) which performs radio transmissions in the wireless communication network comprises: receiving (31) a multiple input multiple output, MIMO, transmission from an access node (20) of the wireless communication network; estimating (32) a spatial orientation (?, (?)) of an antenna array (42) of the wireless terminal (40, 40A) based on measurements performed by at least one sensor (43) of the wireless terminal (40, 40A); and based on the estimated spatial orientation (?, (?)), filtering out (33) a polarization crosstalk from the received MIMO transmission, the polarization crosstalk being associated with the spatial orientation (?, (?)) of the antenna array (42) of the wireless terminal (40, 40A).

Abstract: A method for antenna selection, performed by a user equipment, UE, in a wireless communication system includes determining signal performance of a signal received by the UE. The signal is received by an array antenna of the UE for communication with a network node of the wireless communication system. The method includes determining a signal decay rate associated with the signal performance of the signal, and replacing the array antenna with an omni-directional antenna of the UE for communication with the network node, based on the signal decay rate. Related devices are also described.

Abstract: A wireless communication device includes a wireless interface for conducting wireless communications with a network access node of a wireless network, the wireless interface having uplink and downlink beam forming capabilities. The wireless communication device further includes a control circuit configured to detect a predetermined condition and, in response to the detection, temporarily operate the wireless interface without beam correspondence between uplink and downlink operations; and transmit a message to the network access node that beam correspondence is not used by the wireless communication device.

Abstract: A method for antenna selection, performed by a user equipment, UE, in a wireless communication system includes determining signal performance of a signal received by the UE. The signal is received by an array antenna of the UE for communication with a network node of the wireless communication system. The method includes determining a signal decay rate associated with the signal performance of the signal, and replacing the array antenna with an omni-directional antenna of the UE for communication with the network node, based on the signal decay rate. Related devices are also described.

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 wireless communication device includes a wireless interface for conducting wireless communications with a network access node of a wireless network, the wireless interface having uplink and downlink beam forming capabilities. The wireless communication device further includes a control circuit configured to detect a predetermined condition and, in response to the detection, temporarily operate the wireless interface without beam correspondence between uplink and downlink operations; and transmit a message to the network access node that beam correspondence is not used by the wireless communication device.

Abstract: Adaptive selection of antenna configurations by wireless nodes that comprise a plurality of antenna elements adapted for a plurality of different antenna configurations. The selection of the antenna configuration is made based on the quality of signal(s) received by the wireless node. The wireless nodes are operable for communication in the mm-wave frequency band and, in specific embodiments, the different antenna configurations include two or more of a wide-coverage area antenna configuration, a Multiple-Input Multiple-Output (MIMO) configuration and a Beamforming (BF) configuration.

Abstract: A first message is received, wherein the first message comprises information indicative of a spatial propagation characteristic of the first message. A beam configuration is determined based on the information. Then, a directed, beam-formed second message is transmitted using the beam configuration.

Abstract: A beam sweep configuration of at least one beam sweep is exchanged between nodes of a network. The beam sweep configuration may be indicative of a time-duplex configuration of a plurality of beams of the at least one beam sweep. A beam configuration may be determined based on a receive property of pilot signals transmitted and/or received in the beam sweep.

Abstract: A method for performing wireless data communication is disclosed, which uses a first device and a second device, and which comprises the steps of a) transmitting an outgoing radar signal by the first device, b) determining, by the first device, a receive property of an incoming radar signal which is associated with the outgoing radar signal, and c) setting at least one parameter for performing the wireless data communication by the first device based on the receive property of the incoming radar signal.

Abstract: An inflatable structure includes a plurality of inflatable walls arranged to form a room having an interior and one or more lockable compartments integrated into the plurality of inflatable walls. The lockable compartments can include a non-inflated recess formed within an inflatable wall and at least one flap configured to close an opening of the recess of the first lockable compartment. The inflatable structure can be themed, e.g., by installing themed skins on interior surfaces of the room to provide a user experience. The inflatable structure may also include integrated virtual reality components, including a virtual reality headset supported by the structure.

Abstract: Methods (10, 30) and devices (20, 40) for performing radio transmissions in a wireless communication network are provided. A method (30) associated with a wireless terminal (40, 40A) which performs radio transmissions in the wireless communication network comprises: receiving (31) a multiple input multiple output, MIMO, transmission from an access node (20) of the wireless communication network; estimating (32) a spatial orientation (?, (?)) of an antenna array (42) of the wireless terminal (40, 40A) based on measurements performed by at least one sensor (43) of the wireless terminal (40, 40A); and based on the estimated spatial orientation (?, (?)), filtering out (33) a polarization crosstalk from the received MIMO transmission, the polarization crosstalk being associated with the spatial orientation (?, (?)) of the antenna array (42) of the wireless terminal (40, 40A).

Abstract: A device (112, 130) is configured to communicate data (108) on a radio channel (101, 105, 106) employing first resource elements. The device (112, 130) is further configured to participate in a radar probing (109) employing second resource elements which are orthogonal to the first resource elements.

Abstract: A method for beam sweeping in a wireless communication system is described. Beam sweeping includes performing a reduced beam sweep corresponding to a reduced set of beams that are a subset of a full set of beams available for transmitting and/or receiving from an antenna module, without sweeping beams that are not members of the reduced set of beams. The method includes selecting a beam out of the reduced set of beams for transmitting and/or receiving from the antenna module based on the reduced beam sweep without sweeping beams that are not members of the reduced set of beams. Related devices are disclosed.

Abstract: A beam sweep configuration of at least one beam sweep is exchanged between nodes of a network. The beam sweep configuration may be indicative of a time-duplex configuration of a plurality of beams of the at least one beam sweep. A beam configuration may be determined based on a receive property of pilot signals transmitted and/or received in the beam sweep.