Telefonaktiebolaget Lm Ericsson (publ)

Unwired Planet, LLC

Mårten Sundberg

John Walter Diachina

Paul Schliwa-Bertling

Olof Liberg

Stefan Eriksson Löwenmark

Nicklas Johansson

Miguel Lopez

Laetitia Falconetti

Jens Bergqvist

Sajal Kumar Das

Sebastian Faxér

Gustav Wikström

Imadur Rahman

Eric Nordström

Ulf Händel

Niklas Andgart

Jingya Li

Dominique Everaere

Muhammad Ali Kazmi

Henrik Sahlin

Filip Barac

Daniel Chen Larsson

Yi-Pin Eric Wang

Kittipong Kittichokechai

Dennis Hui

Xingqin Lin

Niklas Johansson

Yutao Sui

Andreas Bergström

Asbjörn Grövlen

Ansuman Adhikary

Björn Hofström

Naga Vishnu Kanth Irukulapati

Ravitej Ballakur

Gustav Almquist

Christopher Peter Callender

Christian Bergljung

Håkan Persson

Ylva Timner

Daniel Widell

Majid Gerami

Hongxia Zhao

Torsten Dudda

Zhan Zhang

Zhenhua Zou

Alexey Shapin

Stefan G Eriksson

Stefano Sorrentino

Mattias Bergström

Jonas Fröberg Olsson

Henrik Rydén

Ricardo Blasco Serrano

Nianshan Shi

Håkan Björkegren

Håkan Axelsson

Kazuyoshi Uesaka

Farshid Ghasemzadeh

Hieu Do

Cecilia Eklöf

Caner Kilinc

Martin Van Der Zee

Andreas Olsson

John Camilo Solano Arenas

Mats Åhlander

Roland Carlsson

Anders Christensson

Hamed Farhadi

Peter Björkén

Petter Ersbo

Bogdan Sutkowski

Birgitta Sagebrand

Anders Malm

Mats Samuelsson

Xun Qiu

Peter Brauer

Joakim Riedel

Karin Wahlqvist

A computer implemented method for detecting data (y) comprised in a part (x) of a received signal (w) of a communication system (), wherein the received signal (w) is associated with a population and where the part (x) of the received signal (w) is associated with a sub-population of the population, the method comprising: configuring (S) a first function (f) to determine a context (c) of the received signal (w), wherein the context (c) is indicative of a state of the received signal (w), configuring (S) a second function (f) to detect the data (y) based on the part (x) of the received signal, wherein the second function (f) is arranged to be parameterized by the context (c), and detecting (S) the data (y) by the first (f) and second (f) functions.

Context aware data receiver for communication signals based on machine learning

A method in a wireless device is disclosed. The wireless device receives an uplink grant from a network node, the uplink grant scheduling one or more uplink transmissions by the wireless device. The wireless device selects an ON/OFF time mask to use for transmitting the one or more uplink transmissions. The wireless device determines, based on the received uplink grant, an allowed placement of a transient period of the selected ON/OFF time mask and a duration of the transient period to use for the one or more uplink transmissions.

Methods and apparatuses for determining a placement and duration of a transient period of an on/off time mask for uplink transmission

According to certain embodiments, a method by a wireless device is provided for determining a maximum output power. The method includes obtaining, by the wireless device, a first time resource for transmitting a first signal in βa first cell on a first carrier and a second time resource for transmitting a second signal in a second cell on a second carrier. Based on the first time resource and the second time resource, the maximum output power is 10 determined. The first signal and the second signal are transmitted based on the determined maximum output power.

Systems and methods to derive configured output power with different TTI

According to some embodiments, a method in a network node comprises: determining that uplink control information, UCI, and a data payload will be sent via a physical uplink shared channel on a slot/subslot transmission; determining a modulation coding scheme, MCS, offset for transmission of the UCI via the physical uplink shared channel; and communicating the MCS offset to a wireless device. According to some embodiments, a method in a wireless device comprises: determining that UCI and a data payload will be sent via a physical uplink shared channel on a slot/subslot transmission; receiving a MCS offset for transmission of the UCI via the physical uplink shared channel; and communicating, to a network node, the UCI using the MCS offset. The UCI and the data payload may be sent via the physical uplink shared channel with a slot/subslot transmission or a short transmission time interval (sTTI).

Dynamic MCS offset for short TTI

Methods and apparatuses are disclosed for a closed-loop remote interference management framework. In one embodiment for a victim node, a method includes determining one of at least two messages corresponding to a closed-loop feedback for remote interference mitigation, the at least two messages comprising a first message and a second message, the first message providing a positive mitigation indication and the second message providing a negative mitigation indication, and transmitting the determined one of the at least two messages to another network node. In another embodiment for an aggressor node, a method includes receiving one of at least two messages corresponding to a closed-loop feedback for remote interference mitigation, and taking a remote interference mitigation action based on the received one of at least two messages.

Closed loop remote interference management

There is disclosed a method of operating a transmitting network node in a radio access network, the method comprising transmitting, based on determined presence of BS-to-BS interference, first reference signaling, the first reference signaling indicating that the transmitting network node is a victim node of the BS-to-BS interference. The disclosure also pertains to related devices and methods.

Atmospheric channel-driven interference handling

Systems and methods for configuring UEs with overlapping PUCCH resources for transmitting scheduling requests are provided. A network node can transmit a scheduling request configuration message indicating PUCCH resources, including a periodicity parameter being less than the PUCCH length. A wireless device can configure PUCCH resources in accordance with the configuration message and transmit a scheduling request.

System and methods for configuring user equipments with overlapping PUCCH resources for transmitting scheduling requests

A method for interference coordination comprises receiving, from a first network node, a reference signal indicating that one or more second network nodes are experiencing interference. The reference signal indicates at least one identifier for the first network node and for the second network nodes. The method further comprises preparing a remote interference management (RIM) coordination message based on the reference signal, and sending, to the first network node, the RIM coordination message to be forwarded to the second network nodes. The method provides a communication between a central aggressor network node and a central victim network node to exchange reference signal and RIM coordination information. Furthermore, the central victim network node may pass the RIM coordination message to a group of victim network nodes indicated in the RIM coordination message.

Method for centralizing interference coordination

A method, system and apparatus are disclosed. In one or more embodiments, a network node for remote interference identification is provided. The network node includes processing circuitry configured to cause transmission of at least one reference signal, RS, based at least in part on at least one RS sequence and at least one time occasion. An identifier of the network node is mapped to the at least one RS sequence and the at least one time occasion.

Encoding of remote interference management (RIM) reference signal (RS) identifier (ID)

A user equipment (UE) transmits an SR to a network node using a first transmission duration a particular number of times. The UE then determines a longer transmission duration for transmitting a further SR based on determining that no response has been received from the network node in response to any of the particular number of times the SR was transmitted. The UE transmits a further SR to the network node using the longer transmission duration.

Scheduling request handling with multiple configured TTIs

Embodiments include exemplary methods for CLI mitigation. The methods comprise receiving (), from at least one sending network node, a TDD configuration of the at least one sending network node, the TDD configuration identifying at least one slot of the TDD configuration as either a fixed uplink slot or a fixed downlink slot, and at least one slot of the TDD configuration as a flexible slot for which at least one symbol has an undefined transmission direction and the remaining symbols of the slot, if any, have a defined transmission direction. The methods also comprise adapting () operations in a cell based on the received TDD configuration for mitigating CLI with the at least one sending network node. Embodiments also include network nodes configured to perform the exemplary methods and/or procedures.

Inter-node coordination for cross-link interference management

Embodiments include methods, performed by a network node, for configuring a physical random-access channel (PRACH) of a cell in a time-division-duplexed (TDD) radio access network (RAN). The methods include determining an increase in a level of remote interference in the cell and, in response to determining the increase, selecting a first PRACH configuration from a first subset of available PRACH configurations. The first subset of available PRACH configurations can be more robust against remote interference than a second subset of the available PRACH configurations, and the first subset can be exclusive of the second subset. The methods also include transmitting, to one or more user equipment (UEs) first information indicating that the first PRACH configuration should be used for accessing the cell via the PRACH. Embodiments also include complementary methods performed by UEs, as well as network nodes and UEs configured to perform such methods.

Improving physical random-access channel (PRACH) robustness against interference

According to some embodiments, a network node in a frequency division duplex (FDD) wireless communication network is operable to schedule a first downlink transmission with a first transmission processing time on a first frequency carrier. The scheduling comprises a first downlink assignment index (DAI). The first DAI comprises a first total DAI and a first accumulative DAI. The network node is operable to schedule a second downlink transmission with a second transmission processing time different than the first on a second frequency carrier. The scheduling comprises a second DAI. The second DAI comprises a second total DAI and a second accumulative DAI. The network node expects hybrid automatic repeat request (HARQ) feedback for the first downlink transmission and the second downlink transmission in a single uplink transmission. The network node is further to transmit the scheduling for the first and second downlink transmission to a wireless device.

Downlink assignment with different processing times

Systems and methods are disclosed herein for mapping Synchronization Signal Blocks (SSBs) to transmit beam directions taking into account remote interference. In this regard, embodiments of a method performed by a base station in a cellular communications network are disclosed. In some embodiments, a method performed by a base station in a cellular communications network comprises determining a beam direction to SSB index mapping, taking into consideration remote interference. The method further comprises using the beam direction to SSB index mapping. Because the SSBs have corresponding Physical Random Access Channel (PRACH) occasions, determining the beam direction to SSB index mapping taking into account remote interference improves PRACH preamble robustness.

SSB to RO mapping against remote interference

According to the present disclosure, behaviors of a Base Station (BS) and a User Equipment (UE) pertinent to Reference Signal (RS) transmissions are discussed. BS may configure RS corresponding to a set of antenna ports in two or more groups of Orthogonal Frequency Division Multiplexing (OFDM) symbols on a short Physical Downlink Sharing CHannel (sPDSCH), where subcarrier indices used for RS transmission are different between at least two groups of OFDM symbols. Then, BS may transmit the RS to UE. UE will receive RS and perform channel estimation based on the received RS.

Method for transmitting reference signal

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Årsta, Sweden

Mårten Sundberg