Telefonaktiebolaget Lm Ericsson (publ)

Apple Inc.

Blackberry Corporation

Nortel Networks Corporation

Gary Boudreau

Muhammad Ali Kazmi

Konstantinos Dimou

Ben Liang

Virgil Cimpu

Min Dong

Seyed Hossein Seyedmehdi

John Puthen Panicker

Ronald Casselman

Johan Mikael Bergman

Kumar Balachandran

Adrien Comeau

Ning Guo

Michael William Petras

Ed Illidge

Robert Baldemair

Iana Siomina

Fredrik Huss

Franz Heiser

Hossein Seyedmehdi

Luke Williams

Neil McGowan

Roland A Smith

Hassan Halabian

Juncheng Wang

Gabriel Wainer

Stefano Sorrentino

Anders Wallén

Ali Behravan

Laetitia Falconetti

Christian Bergljung

Jörg Huschke

Karl D Mann

Christopher Richards

Leonard Lightstone

Edward Mah

Chris Williams

Ali Afana

Peter Malcom Coe

Gregory Allan Osborne

Yujie Xu

Jan Mikhail

Vish Nandlall

Misagh Tavanpour

Ali Ramezanikebrya

Stefan Parkvall

Imadur Rahman

Håkan Björkegren

Eric W Parsons

Oskar Mauritz

Mikael Wittberg

Martin Skarve

Fredric Carl Kronestedt

Mats Buchmayer

Magnus Lundevall

Akram Bin Sediq

Erika Tejedor

Ramy Atawia

Carl Cao

Talha Ahmad

Junying Liu

Majid Bavand

Charles Filiatrault

Jocelyn Aulin

Sharareh Kiani

Hatem Abou-zeid

Sailesh Bharati

Ahmad Abu Al Haija

Mohammadmoein Soltanizadeh

Shahram Shahbazpanahi

Baha Uddin Kazi

Ruhalla Ali Hemmati

Mohammad Moallemi

Ali Ramezani-Kebrya

Ron Casselman

Kontantinos Dimou

Parsons,eric

Gabriel Andres Wainer

Ruhallah Ali Hemmati

A method and network node configured to perform wireless network virtualization to allocate resources of an infrastructure provider (InP) among a plurality of service providers (SPs) are provided. According to one aspect, a method in a network node includes, in each of a plurality of successive time slots in a time interval, T: receiving precoding feedback information from each SP, allocating a virtual transmit power to each cell served by an SP based at least in part on the received precoding feedback information and determining a precoding matrix for each SP. The method also includes minimizing a loss function based at least in part on the received precoding feedback information received in multiple previous time slots.

Delay-tolerant constrained online convex optimization

Embodiments of a method and network node for managing wireless devices (WDs) in a network are disclosed. In some embodiments, the method comprises grouping the plurality of WDs into clusters based at least in part on correlations between channels of the WDs. The method also includes determining beam forming weights for each cluster, the grouping into clusters and the determining of beam forming weights being performed to minimize a total transmit power to the plurality of WDs.

Method and system for unsupervised user clustering and power allocation in non-orthogonal multiple access (NOMA)-aided massive multiple input-multiple output (MIMO) networks

A method performed by a user device having a multiple connectivity configuration with a plurality of radio links to a plurality of network nodes in a radio communication network is provided. The user device can determine a change occurred in an amount of uplink data available for transmission in a first uplink buffer of the user device on a first radio link of a plurality of radio link to first network node. Responsive to the change, the user device can trigger a buffer status report for transmission to a second network node of the plurality of network nodes on a second radio link of the plurality of radio links for which a change in an amount of uplink data available for transmission in a second uplink buffer was not determined. A method performed by the first network node is also provided.

Methods for buffer status reporting in multiple connectivity and related apparatus

A method, system and apparatus are disclosed. According to one or more embodiments, a network node is provided. The network node includes processing circuitry configured to: assign a plurality of wireless devices respective sounding reference signal, SRS, sequences of a common set of SRS sequences where the common set of SRS sequences are shared among a first radio access technology, RAT, and a second RAT, and receive SRS sequences according to the assignment of the respective SRS sequences of the common set of SRS sequences.

Sharing of sounding reference signals (SRS) resources between new radio and long term evolution

Embodiments of methods in a base station and a UE are disclosed. In some embodiments, a method implemented in a network node includes any one or more of: selectively puncturing transmission of LTE CRS symbols that overlap NR DMRS symbols in a downlink transmission time interval; selectively puncturing transmission of NR DMRS symbols that overlap LTE CRS symbols in the downlink transmission time interval; and selectively reducing a number of NR DMRS symbols transmitted to the UE in the downlink transmission time interval. In some embodiments, a method implemented in a UE includes identifying, in a downlink channel, subchannels containing NR DMRS symbols that are corrupted due to collision with LTE CRS symbols. For each identified subchannel: a respective time averaged channel estimate is determined based on NR DMRS symbols that are not corrupted due to collision with the LTE CRS symbols; and a respective MMSE weight is determined using the time averaged channel estimate.

Collision management of LTE NR reference signals

A method, system and apparatus for sharing of physical random access channel (PRACH) resources between New Radio (NR) and Long Term Evolution (LTE) radio access technologies (RATs) are disclosed. According to one aspect, a network node is provided. The network node includes processing circuitry configured to: receive a physical random access channel, PRACH, signal from a wireless device; correlate the PRACH signal with one of at least two orthogonal sequences from a common set of sequences shared among a first radio access technology, RAT, and a second RAT; and determine whether the wireless device is operating according to one of the first RAT and the second RAT based at least in part on the correlation.

Sharing of physical random channel resources among different radio access technologies

There is provided mechanisms for transmission of NR control information in an LTE downlink subframe. At least two symbols in the subframe are allocatable for LTE control information. A method is performed by a network node. The method comprises configuring resource elements for LTE transmission and resource elements for NR transmission within the subframe such that NR control information is allocated to resource elements of at least one symbol within the at least two symbols allocatable for the LTE control information in the subframe. The method comprises initiating transmission of the subframe from co-sited antennas, such that the resource elements for LTE transmission and the resource elements for NR transmission are transmitted from the co-sited antennas.

Transmission of NR control information in an LTE downlink subframe

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, network node and processor for processing uplink signals transmitted from a wireless device (WD) to provide a combination of quantize-forwarding and decode-forwarding relayed signals in massive multiple input multiple output (MIMO) heterogeneous networks (HetNets). According to one aspect, whether quantize-forwarding or decode-forwarding is used depends on a ratio of a quality of a WD signal received at a Small Cell Base Station (SCBS) to a quality of the WD signal received at a Macro Cell Base Station (MCBS). When the ratio is less than a first threshold, signals received at the SCBS may be quantize-forwarded to the MCBS and when the ratio exceeds a second threshold larger than the first threshold, signals received at the SCBS may be decode-forwarded to the MCBS. When the ratio lies between the first and second threshold, signals received at the SCBS may be quantize-forwarded to the MCB.

Hybrid quantize-forward and decode-forward relaying transmission for massive MIMO HetNets

A method, system and apparatus are disclosed. According to one aspect, a network node configured to communicate with a wireless device (WD), includes processing circuitry configured to perform downlink wireless network virtualization by minimizing an expected deviation of received signals at WDs subject to network node power constraints.

Online MIMO wireless network virtualization with unknown channel information

A method and network node for online coordinated multi-cell precoding are provided. According to one aspect, a method includes receiving from each of the plurality of service providers a virtual precoder matrix determined by the corresponding service provider. The method also includes determining a precoder matrix by minimizing a precoding deviation from a virtualization demand of the network subject to at least one power constraint, the virtualization demand being based at least in part on a product of a channel state matrix and a virtual precoder matrix. The method further includes applying the determined precoder matrix to signals applied to a plurality of antennas to achieve a sum of throughputs for the plurality of service providers that is greater than a sum of throughputs for the plurality of service providers achievable when the virtual precoder matrices are applied to the signals.

Online convex optimization with periodic updates for downlink multi-cell MIMO wireless network virtualization

A network node of a communications network configured to provide Citizen Broadband Radio Service (CBRS) to at least one end user device (EUD) in a coverage area of the network node. The network node comprises: at least one processor; and a memory storing software instructions configured to control at least one processor to perform steps of: detecting interference from at least one aggressor device in the network; and reporting the detected interference to at least one of a Spectrum Access System (SAS) and a co-existence manager (CxM) of the communications network.

Interference detection and avoidance in citizen broadband radio service (CBRS)

There is provided a method in a first network node (e.g. CBSD) for negotiating AAS antenna pattern and for radio planning. The method comprises: determining () one or more cell shaping parameters; sending () the determined cell shaping parameters to a second network node (e.g. SAS or CxM); receiving () an allocation of resources based on the determined cell shaping parameters. Another method is disclosed as well and may comprise: receiving () an envelope of radio frequency power for maximizing a coverage area, from a second network node (e.g. SAS); determining () a beam pattern based on the received envelope; sending () the determined beam pattern to the second node.

Methods and nodes for negotiating citizens broadband radio service devices active antenna system antenna pattern and radio planning for citizen's broadband radio service band

A method and network node for classification of interference connections between Citizens Broadband Radio Service Devices, CBSDs, in a wireless communication network are provided. According to one aspect, a method includes calculating an interference level, the calculation being based on whether two interfering CBSDs are operating in one of the alternate channels, adjacent channels and the same channel. The method also includes comparing the calculated interference level to a threshold to determine a classification of an interference connection.

Method and apparatus for handling interference connection types in citizens broadband radio service devices band

A method, system and apparatus are disclosed. A network node is configured to communicate with a wireless device, WD, where the network node configured to, and/or comprising a radio interface and/or comprising processing circuitry configured to: receive an indication whether the WD is to cache at least one file based on spatial statistics of a cache-enabled device-to-device, D2D, network collected by the WD, and perform spectrum allocation based on the received indication.

Joint spectrum allocation and cache placement in a D2D network

Growing community of inventors

Kanata, Canada

Gary Boudreau