Sony Corporation

Sony Group Corporation

Sony Mobile Communications Inc.

Telefonaktiebolaget Lm Ericsson (publ)

Sony Ericsson Mobile Communications Ab

Sony Mobile Communications Ab

Thomas Bolin

Erik L Bengtsson

Zhinong Ying

Olof Zander

Henrik Bengtsson

Ola Karl Thörn

Peter C Karlsson

Aleksandar Rodzevski

Kun Zhao

Kristian Tärnhed

Rickard Ljung

Basuki Endah Priyanto

Fredrik Rusek

Per Åstrand

Zuleita Ho

Malin Larsson

Kåre Agardh

Bo Hakan Larsson

Magnus Midholt

Anders Berggren

Torgny Palenius

Linh Trang

Peter Isberg

Stjepan Begic

Ying Zhinong

Peter Sendelius

Goran Hageltorn

Alexandar Rodzevski

Anders Dahlström

Turan Caliskan

Henrik Jensfelt

Ingemar Thulin

Peter Nordenstr&ouml;m

Christer Tornevik

John Berntsen

Markus Palmgren

Ola Thörn

Olaf Zander

Kristian TÄRNHED

A method includes receiving () a plurality of reference signals (-) at an antenna port of a communication device (). Each reference signal (-) is sent using a corresponding precoder. The precoder is selected from a first set of precoders. The method further includes determining () a channel estimate based on the received plurality of reference signals (-), and selecting () 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 () an indication () relating to the selected precoder.

Operating communication devices

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

Radar probing employing pilot signals

Methods () and devices () for performing radio transmissions in a wireless communication network are provided. A method () associated with a wireless terminal (40, 40A) which performs radio transmissions in the wireless communication network comprises: receiving () a multiple input multiple output, MIMO, transmission from an access node () of the wireless communication network; estimating () a spatial orientation (&#x3b8;, (&#x3d5;)) of an antenna array () of the wireless terminal (A) based on measurements performed by at least one sensor () of the wireless terminal (A); and based on the estimated spatial orientation (&#x3b8;, (&#x3d5;)), filtering out (33) a polarization crosstalk from the received MIMO transmission, the polarization crosstalk being associated with the spatial orientation (&#x3b8;, (&#x3d5;)) of the antenna array () of the wireless terminal (A).

IMU-assisted polarization division multiplexed MIMO wireless communication

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.

Methods, devices and computer program products for antenna selection in a communication system

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.

Dynamic control of beam correspondence

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.

Adaptive antenna configuration

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.

Message transmission based on a determined beam configuration

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.

Beam sweep configuration

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.

Method for performing radar-assisted wireless data communication

A device () is configured to communicate data () on a radio channel () employing first resource elements. The device () is further configured to participate in a radar probing () employing second resource elements which are orthogonal to the first resource elements.

Coexistence of radio communication and radar probing

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.

Systems, methods and devices for beam selection in a wireless communication system

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 cellular network allocates resources to a device for transmission of a signal for finding at least one RFID tag. The device uses the resources allocated by the cellular network to transmit a signal to the at least one RFID tag in a frequency band licensed to the cellular network.

Methods and devices for finding RFID tags

The present invention relates to an antenna arrangement on a circuit board () extending along a length direction, L, and a width direction, W, the width direction being orthogonal to the length direction. The antenna arrangement comprising: a cell-band antenna (); a ground plane () associated with the cell-band antenna; and a slit antenna () arranged in a slit antenna portion () of the ground plane, the slit antenna comprising a slit () in the ground plane, the slit having in the width direction a slit extension extending from an in the length direction extending edge () of the ground plane, the slit extension being 50-95% of an in the width direction extending total width of the slit antenna portion.

Antenna arrangement on a circuit board

Growing community of inventors

Lund, Sweden

Thomas Bolin