Telefonaktiebolaget Lm Ericsson (publ)

Håkan Björkegren

Robert Baldemair

Karl Werner

Stefan Parkvall

Erik Bengt Dahlman

Fredrik Gunnarsson

Gabor Fodor

Lars Lindbom

Jonas Kronander

Gunnar Mildh

Andres Reial

Dennis Hui

Joakim Axmon

Ali S Khayrallah

Ning He

Bengt Lindoff

Icaro L J Da Silva

Johan Rune

Jinhua Liu

Yi-Pin Eric Wang

Jari Tapio Vikberg

Erik A Eriksson

Pål Frenger

Henrik Sahlin

Stefan Wager

Rui Fan

Martin Hessler

Magnus Stattin

Sven Oscar Petersson

Karl Norrman

Qianxi Lu

Qingyu Miao

Johan Torsner

Pradeepa Ramachandra

Fredrik Athley

Walter Müller

Janne Peisa

Joachim Sachs

Kumar Balachandran

Gen Li

Claes Tidestav

Thorsten Lohmar

Zhang Zhang

Bo Hagerman

Osman Nuri Can Yilmaz

Niclas Wiberg

Johan Furuskog

Jonas Fröberg Olsson

Niklas Johansson

Torgny Palenius

Jianfeng Wang

Hai Feng Wang

Lars Sundström

Zhan Zhang

Peter Alriksson

Andreas Bergström

Jose Luis Pradas

Pontus Wallentin

Patrik Rugeland

Henrik Asplund

Anders Furuskär

Martin Johansson

Mikael Coldrey

Patrik Torgny Karlsson

Johan Axnäs

Mårten Ericson

Shehzad Ali Ashraf

Fredrik Lindqvist

Reza Moosavi

Dennis Sundman

Mikael Prytz

Håkan Axelsson

Yngve Selén

Andreas Cedergren

Nadia Brahmi

Niklas Jaldén

Ali El Essaili

Elena Myhre

Jonas Medbo

Jörg Huschke

Hugo Tullberg

Emma Wittenmark

Virgile Garcia

Lars Manholm

Ulf Gustavsson

Ke Wang Helmersson

Mattias Frenne

Bo Lincoln

Edgar Ramos

Stephen J Grant

Johan Nilsson

Anders Wallén

Johan Mikael Bergman

Sebastian Faxér

Henning Wiemann

Carmela Cozzo

Oskar Mauritz

Jung-Fu Cheng

Mårten Sundberg

Gary Boudreau

A method performed in a network node for configuring UE with dynamic spectrum sharing between a first RAT and a second RAT in a wireless communications system is disclosed. The network node configures an initial bandwidth part, BWP, for a UE, spanning across a dedicated spectrum for the first RAT and a shared spectrum between the first and second RATs, wherein synchronization signals of the first RAT are configured in the dedicated spectrum, and at least some other signals of the first RAT are configured in both dedicated and shared spectrum. The first RAT is NR and the second RAT is LTE.

Network node and method for dynamic spectrum sharing between radio access technologies

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

There is disclosed a method of operating a network node in a New Radio, NR, radio access network. The method includes transmitting data signaling in a slot corresponding to an LTE MBSFN subframe, the data signaling being rate-matched around resource elements corresponding to resource elements according to a configuration for Cell-Reference Signaling, CRS, for LTE non-MBSFN subframes. The disclosure also pertains to related methods and devices.

Data signaling in LTE/NR coexistence

A method and apparatus are disclosed for LTE-NR spectrum sharing. In one embodiment, a method for a wireless device (WD) includes obtaining a configuration of at least one reference signal of a first radio access technology that overlaps in time with a Multimedia Broadcast Multicast Service Single Frequency Network, MBSFN, subframe of a second radio access technology. In another embodiment, a method for a network node includes configuring at least one reference signal of a first radio access technology to overlap in time with a MBSFN subframe of a second radio access technology.

MBSFN subframe usage for LTE-NR spectrum sharing

A method, wireless device and network node are disclosed. According to one aspect, a method for a wireless device includes receiving a configuration of a reference signal resource set from the network node, the reference signal resource set being a set of single-symbol and single antenna port reference signal resources in at least one slot; and based on at least one parameter of the received configuration, determining whether the UE can assume a same antenna port for all reference signal resources of the reference signal resource set.

Methods and apparatuses for downlink tracking reference signal configuration

Methods and apparatus in a fifth-generation wireless communications, including an example method, in a wireless device, that includes receiving a downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration from among a predetermined plurality of uplink access configurations, and transmitting to the wireless communications network according to the identified uplink access configuration. The example method further includes, in the same wireless device, receiving, in a first subframe, a first Orthogonal Frequency-Division Multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology. Variants of this method, corresponding apparatuses, and corresponding network-side methods and apparatuses are also disclosed.

A node () of a wireless communication network manages sending of control information to a radio device (). For a first frequency band, the control information indicates a first start position for transmission of a data channel. For a second frequency band, the control information indicates a second start position for transmission of the data channel. Based on the first start position and the second start position, the node () controls transmission of data on the data channel.

Flexible indication for start position of data channel

Embodiments include exemplary methods and/or procedures for receiving a physical uplink shared channel (PUSCH) in a cell of a time-division-duplexed (TDD) radio access network (RAN). Embodiments include determining whether remote base station interference is present in uplink transmissions in the cell and, based on the determining result, configuring activation or deactivation of code block group (CBG) based retransmissions in the cell, sending control messages to one or more UEs in the cell, for applying the configuration, and decoding subsequent PUSCH transmissions received from the one or more UEs based on the configuration. Embodiments also include network nodes configured to perform the exemplary methods and/or procedures.

Remote interference mitigation for physical uplink shared channel (PUSCH)

There is disclosed a method of operating a user equipment in a radio access network, wherein the method comprises receiving tracking reference signaling, TRS, in a TRS pattern. The TRS pattern represents a distribution of subcarriers for carrying TRS over a range of subcarriers shifted relative to a reference subcarrier corresponding to a central frequency subcarrier of an LTE carrier.

TRS reference signaling in LTE/NR coexistence

There is disclosed a method of operating a user equipment in a NR radio access network, wherein the method comprises receiving channel state information reference signaling, CSI-RS, in a CSI-RS pattern. The CSI-RS pattern represents a distribution of subcarriers for carrying CSI-RS over a range of numbered subcarriers, and comprises a first subpattern and a second subpattern. The CSI-RS pattern is based on received first configuration information and received second configuration information. Further, the first configuration information indicates the first subpattern of subcarriers starting at a first starting subcarrier with even number, and the second configuration information indicates the second subpattern starting at a second starting subcarrier with an odd number. The disclosure also pertains to related methods and devices.

CSI reference signaling in LTE/NR coexistence

There is disclosed a method of operating a network node, the network node operating according to a first radio access technology, RAT, the method including transmitting data in a transmission resource structure, the transmission resource structure including a first set of resource elements for data and a second set of resource elements for demodulation reference signals, DMRS, wherein the second set represents at least one pattern in frequency domain, wherein the transmission resource structure is scheduled based on a coexistence indication, the coexistence indication indicating the presence of cell-specific reference signals associated to a second RAT. The disclosure also pertains to related methods and devices.

Demodulation reference signaling in LTE/NR coexistence

A method of operating a network node in a NR radio access network includes transmitting channel state information reference signaling, CSI-RS, the CSI-RS having a CSI-RS pattern in frequency domain over a range of subcarriers including a reference subcarrier, wherein in a first frequency range below the reference subcarrier, the CSI-RS pattern includes a first sub-pattern represented by a repeated flush arrangement of a pattern element covering a number NP of subcarriers, and in a second frequency range above the reference subcarrier, the CSI-RS pattern includes a second sub-pattern represented by a repeated flush arrangement of the pattern element, wherein the first sub-pattern and the second sub-pattern are separated in frequency domain by an interrupting pattern having a number NI of subcarriers, wherein NI&#x3e; 0 and NI is different from NP. The disclosure also pertains to related methods and devices.

Embodiments of the disclosed techniques include methods for remote interference management (RIM) implemented in a network device in charge of management in a wireless network. In one embodiment, a method includes receiving messages from a set of base stations, wherein each message from abase station of the set of base stations indicates that the base station is interfered. The method further includes grouping the set of base stations into a set of reference signal groups based on the messages, each reference signal group being mapped to a reference signal group identifier; and the method continues with sending a respectively mapped reference signal group identifier to each of the set of base stations. Embodiments of the invention also include methods to group base stations causing the interference.

Intelligent grouping of network nodes for remote interference management

Growing community of inventors

Täby, Sweden

Håkan Björkegren