Telefonaktiebolaget Lm Ericsson (publ)

Acconeer Ab

St-ericsson Sa

Abb Technology Ltd

Schneider Electric Buildings Ab

Bo Lincoln

Bengt Lindoff

Robert Baldemair

Martin Hessler

Torgny Palenius

George Jöngren

Zhang Zhang

Fredrik Nordström

Fredrik Gunnarsson

Robert Mark Harrison

Gabor Fodor

Lars Lindbom

Jonas Kronander

Andres Reial

Siva Dharshan Muruganathan

Johan Nilsson

Håkan Björkegren

Mattias Frenne

Shiwei Gao

Anders Wallén

Andreas Cedergren

Niklas Jaldén

Virgile Garcia

Stefan Parkvall

Gunnar Mildh

Icaro L J Da Silva

Johan Rune

Jinhua Liu

Yi-Pin Eric Wang

Erik Bengt Dahlman

Jari Tapio Vikberg

Erik A Eriksson

Pål Frenger

Henrik Sahlin

Stefan Wager

Dennis Hui

Magnus Stattin

Sven Oscar Petersson

Joakim Axmon

Karl Norrman

Qianxi Lu

Qingyu Miao

Johan Torsner

Pradeepa Ramachandra

Fredrik Athley

Walter Müller

Janne Peisa

Kumar Balachandran

Joachim Sachs

Ali S Khayrallah

Gen Li

Claes Tidestav

Thorsten Lohmar

Bo Hagerman

Osman Nuri Can Yilmaz

Niclas Wiberg

Johan Furuskog

Jonas Fröberg Olsson

Niklas Johansson

Jianfeng Wang

Hai Feng Wang

Zhan Zhang

Lars Sundström

Peter Alriksson

Andreas Bergström

Jose Luis Pradas

Pontus Wallentin

Patrik Rugeland

Henrik Asplund

Martin Johansson

Karl Werner

Mikael Coldrey

Patrik Torgny Karlsson

Mårten Ericson

Johan Axnäs

Shehzad Ali Ashraf

Fredrik Lindqvist

Reza Moosavi

Dennis Sundman

Ning He

Mikael Prytz

Håkan Axelsson

Yngve Selén

Nadia Brahmi

Ali El Essaili

Jonas Medbo

Elena Myhre

Jörg Huschke

Hugo Tullberg

Emma Wittenmark

Ulf Gustavsson

Lars Manholm

Ke Wang Helmersson

Thomas Walldeen

Peter Von Wrycza

Rui Fan

Anders Furuskär

Edgar Ramos

Christer Östberg

Christian Bergljung

The disclosure relates to an autonomous moving object comprising: a radar sensor configured to scan a volume in front of the object, and a radar signal processor configured to: acquire a sequence of radar responses, each radar response of the sequence being acquired at a different position (P) of the autonomous moving object, and perform synthetic aperture radar processing of at least parts of the acquired sequence of radar responses to obtain a synthetic aperture radar image representing response amplitude as a function of at least distance and angle with respect to the radar sensor, the autonomous moving object further comprising: a controller configured to detect presence of a potential obstacle within a pre-defined sub-volume in front of the autonomous moving object by analyzing the synthetic aperture radar image and, in response to detecting presence of a potential obstacle, output a control command configured to cause a changed movement of the autonomous moving object.

Autonomous moving object

Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.

Network architecture, methods, and devices for a wireless communications network

An autonomous moving object comprising a radar sensor is provided. The radar sensor is configured to, during movement, acquire data sets representing reflections from surface portions located within a distance range, and, at least at a sequence of occasions, illuminate a surface region and acquire a data set representing, for each of a set of distances within said distance range, an amplitude and a phase of reflected radar signals received from surface portions located at said distance. Said surface regions comprise common sub-region illuminated at each of said occasions. A radar signal processor is configured to receive the data sets acquired at each of said sequence of occasions. The received data sets form a collection of data sets, wherein each data set of said collection comprises a data subset pertaining to said common sub-region. A surface classifier processor is configured to output a classification of a surface type of the surface based on said collection of data subsets.

Autonomous moving object with radar sensor

Methods performed by a wireless device operating in a dormant mode comprise performing a measurement on each of a plurality of resources from a predetermined set of resources or demodulating and decoding information from each of a plurality of resources from a predetermined set of resources, such as a set of beams. The methods further include evaluating the measurement or the demodulated and decoded information for each of the plurality of resources against a predetermined criterion, and then discontinuing the performing and evaluating of measurements, or discontinuing the demodulating and decoding and evaluation of information, in response to determining that the predetermined criterion is met, such that one or more resources in the predetermined set of resources are neither measured nor demodulated and decoded. The methods further comprise deactivating receiver circuitry, further in response to determining that the predetermined criterion is met.

Dormant mode measurement optimization

The disclosure relates to an autonomous moving object comprising: a radar sensor configured to scan a volume in front of the object, and a radar signal processor configured to: acquire a sequence of radar responses, each radar response of the sequence being acquired at a different position of the autonomous moving object, and perform synthetic aperture radar processing of at least parts of the acquired sequence of radar responses to obtain a synthetic aperture radar image representing response amplitude as a function of at least distance and angle with respect to the radar sensor, the autonomous moving object further comprising: a controller configured to detect presence of a potential obstacle within a pre-defined sub-volume in front of the autonomous moving object by analyzing the synthetic aperture radar image and, in response to detecting presence of a potential obstacle, output a control command configured to cause a changed movement of the autonomous moving object.

Performing a superposed transmission in a wireless communications network. The superposed transmission includes a first signal intended for a first wireless device and a second signal intended for a second wireless device that are superposed and transmitted simultaneously by the network node on the same transmission resources. A first ratio and a second ratio of the total transmission power available for the superposed transmission are determined. The first ratio is to be used for the first signal and the second ratio is to be used for the second signal. Information indicating the first and/or second ratio is transmitted to at least the first wireless device and the superposed transmission to the first and second wireless device is performed simultaneously on the same transmission resources by transmitting the first signal using a transmission power according to the first ratio and the second signal using a transmission power according to the second ratio.

Network node, wireless device and methods therein for performing and handling superposed transmissions in a wireless communications network

In an aspect, a wireless device with a plurality of transmitter chains that can be selectively used to transmit a beam-formed signal determines a targeted receive power for the beam-formed signal, with respect to a target receiving device. The wireless device selects a number of the plurality of transmitter chains for forming the beam-formed signal, based on the targeted receive power and based on an estimated power consumption for each of the plurality of transmitter chains. The selection is performed so as to minimize a total power consumption, given the estimated power consumptions. The wireless device transmits a beam-formed signal, using the selected number of the plurality of transmitter chains.

Procedures to control beamforming

Systems and methods are disclosed herein that relate to the use of a Device-to-Device (D2D) sidelink, e.g., in a licensed spectrum, to assist with clear channel assessment in an unlicensed spectrum. In doing so, the hidden node problem and/or the exposed node problem can be mitigated. In some embodiments, a method of operation of a wireless device in a cellular communications network comprises performing a sidelink-assisted clear channel assessment (SLA-CCA) procedure to determine whether to transmit on an unlicensed channel. The SLA-CCA procedure is a Clear Channel Assessment (CCA) procedure that is assisted by information received by the wireless device from one or more other wireless devices over a D2D sidelink in a licensed spectrum. The method further comprises, upon determining to transmit on the unlicensed channel as a result of performing the SLA-CCA procedure, transmitting a transmission on the unlicensed channel.

Sidelink assisted cooperative listen-before-talk

A method for estimating Multiple Input Multiple Output, MIMO, channel state information for a radio link between a first radio node including a number N, N&#x2265;2, of receiving antenna ports and a second radio node including a number M, M&#x2265;2, of transmitting antenna ports. The method includes obtaining partial channel state information from a reference signal transmitted by a number X, 1&#x2264;X&#x3c;M, of said transmitting antenna ports and received by all of said receiving antenna ports, said partial channel state information providing a measure for the N&#xd7;X propagation channels between all of said receiving antenna ports and said transmitting antenna ports. Also disclosed are corresponding devices and computer programs. Also disclosed is a method for controlling transmission based on estimated channel state information.

Method and devices for estimation of MIMO channel state information

A reciprocity-based precoding algorithm is provided that accommodates for the specific type of uncertainty arising from the delay in channel estimation as a function of the velocity of moving wireless communication devices (-). Account is taken of time delay from reference symbols previous sounding times as well as the velocity of the wireless communication devices (-) thereby providing an effective precoding scheme for beamforming.

Transmission to moving receivers

According to an aspect, a radio access network node supports the transmission of multi-user superposition transmissions, where multi-user superposition transmission comprises transmitting, in each of a plurality of time-frequency resource elements, a modulation symbol intended for a first UE and a modulation symbol intended for a second UE, using the same antennas and the same antenna precoding. The radio access network node receives multiple CSI reports from the first UE for a first reporting instance. One or more of the received multiple CSI reports correspond to one or more respective multi-user superposition transmission states. The radio access network node also determines whether to use multi-user superposition transmission or an orthogonal multiple access transmission for scheduling the first UE in a first scheduling interval, based on the received multiple CSI reports.

Multiple CSI reports for multi-user superposition transmission

Embodiments herein relate to a method performed by a wireless device for managing communication of the wireless device in a wireless communications network. The wireless device determines at least two waveform parameters based on a metric of the wireless device, for communicating data between the wireless device and a radio network node in the wireless communications network. The wireless device further transmits an indication indicating the at least two determined waveform parameters to the radio network node.

Radio network node, wireless device and methods performed therein

Growing community of inventors

Lund, Sweden

Bo Lincoln