Telefonaktiebolaget Lm Ericsson (publ)

Anders Landström

Robert Baldemair

Arne Simonsson

Peter Ökvist

Magnus Thurfjell

Kjell Larsson

Mattias Frenne

Erik A Eriksson

Andreas Nilsson

Claes Tidestav

Stefan Wänstedt

Nicklas Johansson

Qi Zhang

Qiang Zhang

Tommy Arngren

Hans Hannu

Andreas Kristensson

Per Burström

Peter Vaderna

Chunhui Liu

David Lindero

Daniel Bergström

Olle Rosin

Ricardo Da Silva Souza

Kristina Hessler

Xueying Hou

Medhat Mohamad

Bo Xu

Agnieszka Ziembla

John SKÖRDEMAN

Peter ÖKvist

Embodiments herein relate to method performed by a radio network node for handling communication in a wireless communication network. The radio network node dynamically applies different muting patterns for muting an active component of one or more antenna branches of the radio network node and/or of one or more antenna panels of the radio network node, wherein the different muting patterns are associated with one or more types of physical channels used for communicating and/or a communication parameter related to one or more UEs. The radio network node performs a communication using the dynamically applied different muting patterns.

Radio network node, and method performed therein

A method of operating a wireless device in a wireless communication network. The method includes transmitting feedback signaling having a feedback report, the feedback report being associated to a feedback report identity. The disclosure also pertains to related devices and methods, like a method of operating a network node, a wireless device and a network node, as well as associated thereto a program product.

Feedback reporting for wireless communication

Embodiments described herein relate to methods and apparatuses for adjusting a set of candidate beams that a wireless device is to perform measurements on. A method comprises obtaining an estimated gain value associated with a first narrow beam in the set of candidate beams, wherein the estimated gain value is determined based on a value indicative of first received energy of a first reference signal received by the wireless device on a first wide beam and a value indicative of a second received energy of a second reference signal received by the wireless device on the first narrow beam; comparing the estimated gain value to an expected gain value associated with the first narrow beam; and based on the comparison, determining whether to adjust which beams belonging to the candidate set of beams.

Methods and apparatuses for adjusting a set of candidate beams

A network node and a method for transmitting a Transmission Configuration Indication, TCI, update to a UE. The network node associates a first transmit beam with a first reference signal having first Quasi Co-Location, QCL, channel properties. The first transmit beam gives the same first QCL channel properties and is used in data transmission to the UE. Further, the network node determines second QCL channel properties given by a second transmit beam when a beam change is triggered. When the second QCL channel properties is within a QCL channel property range of a second reference signal and when the second reference signal has third QCL channel properties being different from the first QCL channel properties, the network node associates the second transmit beam with the second reference signal, and transmits, to the UE, a TCI update having an indication of the second reference signal.

Radio network node and methods therein for transmitting a transmission configuration indication (TCI) update to a wireless device

A network node () identifies radio beams () that are affected by periodic fading at a User Equipment (UE) () and penalizes the identified beams () with respect to a serving-beam selection procedure that is used to select a serving radio beam () for the UE (). For example, among a set () of radio beams () that are candidates for serving the UE (), the serving-beam selection procedure selects one or more of the candidate beams () according to rankings determined from radio-signal measurements reported by the UE () or from measurements on Sounding Reference Signals (SRS) transmitted by the UE (). In this context, penalizing a beam () means discounting its ranking for purposes of considering it within the beam-selection procedure.

Method and apparatus for beam selection in a wireless communication network

There is provided mechanisms for beam management. A method is performed by a radio transceiver device. The method comprises obtaining an angle spread value for signal paths towards a second radio transceiver device. The method comprises performing a beam management procedure for selecting which directional beam to use for communication with the second radio transceiver device by transmitting or receiving reference signals in a candidate set of directional beams. Which directional beams to include in the candidate set of directional beams is dependent on the angle spread value by the angle spread value determining sparsity of the directional beams in the candidate set of directional beams.

Beam management for a radio transceiver device

There is provided mechanisms for assigning physical resource blocks to base stations in a cell deployment for transmission of downlink reference signals. A method is performed by a network node. The method comprises obtaining reports from terminal devices in the cell deployment, each report indicating location-wise signal strength measurements of base stations for one of the terminal devices. The method comprises determining, based on the obtained reports, whether to group the physical resource blocks in four sets of physical resource blocks or to group the physical resource blocks in less than four sets of physical resource blocks. The method comprises assigning the determined four or less sets of physical resource blocks to the base stations such that no two adjacent cells in the cell deployment are assigned to the same set of physical resource blocks. The method comprises initiating transmission of the downlink reference signals from the base stations in the assigned physical resource blocks.

Assignment of physical resource blocks to base stations

A method performed by a network node for beam management. The network node receives one or more quality values from a User Equipment (UE). The one or more quality values are measured by the UE on first reference signals transmitted by the network node in respective one or more beams in a first set of candidate beams. The A serving beam is selected out of the first set of candidate beams based on the received quality values for data communication with the UE. The network node creates a rule related to signal quality. The network node obtains one or more second quality values related to respective subsequent messages transmitted to the UE in the selected serving beam. As long as the rule is fulfilled with respect to the second quality value, the network node transmits one or more further subsequent messages only in the serving beam.

Network node and method for beam management in a wireless communications network

A method performed by a first wireless device () is provided. The method comprises transmitting () a radio signal towards the at least one second wireless device indicating that the first wireless device is, or that the at least one second wireless device has an option to be, responsible for beamforming of transmissions over the direct D2D communication link. The method also comprises receiving () information from the at least one second wireless device indicating which of the first wireless device or the at least one second wireless device is to be responsible for beamforming of transmissions over the direct D2D communication link. Further, the method comprises configuring (), based on the received information, which of the first wireless device or the at least one second wireless device is to be responsible for beamforming of transmissions over the direct D2D communication link.

Wireless devices and methods therein for handling transmissions between the devices over a direct device-to-device (D2D) communication link

There is provided mechanisms for initiating a beam sweep procedure. A method is performed by a radio transceiver device. The method includes initiating, for a candidate beam set, a beam sweep procedure for communication with another radio transceiver device. Each beam in the candidate beam set has an associated angular spread value. During the beam sweep procedure, beams in the candidate beam set are swept in an order weighted according to the angular spread values.

Initiation of a beam sweep procedure

There is provided mechanisms for adapting which beam to use for reception of signals. A method is performed by a receiving radio transceiver device. The receiving radio transceiver device is capable of receiving the signals using at least one beam selected from a set of beams. Each beam in the set of beams has a backup beam. The method includes receiving signals from a transmitting radio transceiver device while using a first beam selected from the set of beams. Signal receipt at a decreasing quality level while using the first beam is detected. The decreasing quality level is caused by interfering transmission from another transmitting radio transceiver device. In response thereto, a temporary switch to the backup beam of the first beam is initiated, without performing any beam training, for continued reception of signals from the transmitting radio transceiver device.

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Boden, Sweden

Anders Landström