Telefonaktiebolaget Lm Ericsson (Publ)

Ying Sun

Björn Nordström

Torbjörn Wigren

Christian Skärby

Jianwei Zhang

Marco Belleschi

Riikka Susitaival

Jing Fu

Mattias Tan Bergström

Wei Zhao

Siva Dharshan Muruganathan

Vincent Huang

Mona Matti

Yufei W Blankenship

Yi-Pin Eric Wang

Henrik Sahlin

Yu Yang

Torsten Dudda

Helka-Liina Määttanen

Yutao Sui

Gustav Wikström

Jingya Li

Mattias Andersson

Zhenhua Zou

Anna Larmo

Lisa Boström

Anders Johansson

Magnus Hurd

Katrina Lau

Richard Middleton

Robert Baldemair

Mattias Frenne

Paul Schliwa-Bertling

Johan Rune

Jari Tapio Vikberg

John Walter Diachina

Shiwei Gao

Sorour Falahati

Walter Müller

Pradeepa Ramachandra

Miguel Lopez

Kumar Balachandran

Joachim Sachs

Andreas Höglund

Osman Nuri Can Yilmaz

Jonas Fröberg Olsson

Jose Luis Pradas

Niklas Andgart

Anders Furuskär

Huaisong Zhu

Sándor Rácz

Mats Folke

János Farkas

Mats Fredrik Sågfors

Eva Englund

Dinand Roeland

György Miklós

Patrik Salmela

Henrik Enbuske

Stefano Ruffini

Bernard Smeets

Nianshan Shi

Anders K Eriksson

José Araújo

Fredrik Huss

Sara Sandberg

Dennis Sundman

Oskar Mauritz

Balázs Varga

Magnus Sandgren

Kai-Erik Sunell

Kittipong Kittichokechai

Carola Faronius

Geza Szabo

Tao Cui

Harald Gustafsson

Mikael Wittberg

Kristina Jersenius

Karl D Mann

Peter Moberg

Jawad Manssour

Kimmo Juhani Hiltunen

Per Persson

Fredrik Persson

Alexey Shapin

Norbert Reider

Franz Heiser

Abdulrahman Alabbasi

András Kern

Joakim Persson

Hanzhi Zhang

Alexandros Palaios

Massimo Condoluci

Gabor Nemeth

Zsolt Kenesi

Ola Angelsmark

Kun Wang

Majid Gerami

Steven Corroy

Bikramjit Singh

Embodiments include methods for a user equipment (UE) configured to operate in a wireless network according to a periodic discontinuous reception (DRX) cycle that includes periodic DRX on durations. Such methods include awakening for at least a first duration from a low energy consumption state. The first duration is not within any of the periodic DRX on durations. Such methods include, during the first duration, monitoring for an activation signal occurring at a first offset before a next subsequent resource of a configured grant of periodic uplink transmission resources (UL CG) or of a semi-persistent schedule of periodic downlink reception resources (DL SPS). Other embodiments include complementary methods for a network node, as well as UEs and network nodes configured to perform such methods.

Methods for discontinuous reception (DRX) in conjunction with guaranteed low-latency services

Embodiments of the present disclosure provide methods and apparatus for buffer state report. A method performed at a terminal device may comprise: determining a time duration, wherein a buffer size associated with data to be transmitted during the time duration is to be predicted by the terminal device; predicting the buffer size; and transmitting a scheduling request or a buffer state report indicating the predicted buffer size to a network node. A method performed at a network node may comprise: receiving a scheduling request or a buffer state report indicating a predicted buffer size associated with data to be received during a time duration from a terminal device; and transmitting a grant for the data according to the received scheduling request or buffer state report. The latency of data transmission from the terminal device to the network node may be reduced.

Method and apparatus for buffer state report

A wireless communication device () replicates, at a Radio Link Control (RLC) layer of a protocol stack of the wireless communication device (), an original packet associated to a particular service to provide one or more replicate packets. Each of the one or more replicate packets is a replication of the original packet. For each packet from among a set of packets consisting of the original packet and at least one of the one or more replicate packets, the wireless communication device () generates a transport block that comprises the packet and transmits the transport block to one or more base stations or transmission/reception points, TRPs, via a physical layer of the protocol stack of the wireless communication device ().

Replication in a wireless communication network

Techniques for enhancing performance in Industrial Internet-of-Things (IIoT) scenarios, including techniques for time-sensitive networking (TSN) and 5G wireless network integration. An example method, performed by a wireless device, comprises receiving system information (SI) from a radio base station (RBS) of a radio access network (RAN), the SI being indicative of support for TSN through the RBS, and establishing at least one TSN stream with an external data network, through the RBS. The example method further includes receiving a first timing signal from the wireless communications network, via the RBS, receiving a second timing signal from the external TSN data network to which the wireless device is connected, comparing the first timing signal to the second timing signal to determine an offset, and transmitting the offset to the wireless communications network.

Industrial automation with 5G and beyond

Methods for scheduling mixed type traffics via multiple Transmission/Reception Points (TRPs) are provided. In embodiments disclosed herein, a base station provides, and a wireless device receives, a scheduling information for scheduling the mixed type traffics with different Quality of Service (QoS) requirements via multiple TRPs. In a non-limiting example, the mixed type traffics include an enhanced Mobile Broadband (eMBB) service and an Ultra-Reliable and Low Latency Communication (URLLC) traffic service, and the scheduling information can be conveyed in a single Downlink Control Information (DCI) or a pair of DCIs. As such, it is possible to enable efficient scheduling of both eMBB traffic and URLLC traffics simultaneously. As a result, it is possible to satisfy a reliability requirement of the URLLC service without sacrificing spectral efficiency and/or throughput of the eMBB service.

Multi TRP based scheduling of mixed type traffics

Embodiments herein relate to a method implemented by a wireless communication device. The wireless communication device transmits data to a radio node of a wireless communication network. The wireless communication device monitors for a positive acknowledgement or a negative acknowledgement of the data from the radio node. The wireless communication device retransmits the data to the radio node when said monitoring indicates reception of a negative acknowledgement of the data. The wireless communication device refrains from retransmitting the data to the radio node when said monitoring indicates reception of a positive acknowledgement of the data. The wireless communication device also refrains from retransmitting the data to the radio node when said monitoring indicates neither reception of a positive acknowledgement of the data nor reception of a negative acknowledgement of the data.

Wireless communication device, network node and methods for handling data transmissions

A method, system and apparatus are disclosed. According to one aspect of the disclosure, a network node configured to communicate with a wireless device is provided. The network node includes processing circuitry configured to: cause a first physical downlink control channel, PDCCH, transmission starting at a first symbol and cause a second PDCCH transmission starting at a second symbol where the first PDCCH transmission is configured to schedule a first physical uplink shared channel, PUSCH, transmission ending at a third symbol for a transport block and the second PDCCH transmission configured to schedule a second PUSCH transmission starting at a fourth symbol for the transport block, where the second symbol occurs before the third symbol, the third symbol occurs later in time than the first symbol and the fourth symbol occurs later in time than that second symbol.

Multi-transmission and reception point (TRP) redundancy and soft combining with reduced latency

Embodiments herein relate to a method, performed by a network node () in a wireless communication system (), for handling resource allocations for a first User Equipment, UE () out of a set of UEs (). Each of the UEs () in the set of UEs() has a different pre-configured frequency allocation for cyclic transmissions, such as cyclic UL and/or DL transmissions. The network node () determines, based on a data arrival pattern, such as e.g. a packet arrival time, of the cyclic UL transmissions for each of the UEs in the set of UEs (), one or more TTIs, where a collision between transmissions to and/or from two UEs () out of the set of UEs () may occur. The 10 network node () reconfigures the frequency allocation for a first UE () of the two UEs () to overlap, at least partly, with the frequency of a second UE () of the two UEs () for the TTIs other than the TTIs where the collision between the transmissions to and/or from the first and the second UEs () may occur. Embodiments herein further relate to a method, performed by the first UE () out of the set of UEs () in 15 the wireless communication system (), for handling resource allocation for the first UE () out of the set of UEs ().

Network node, user equipment and methods performed therein in a wireless communications network

A method performed by a network node () is disclosed. The network node determines (), based on one or more quality-of-service (QoS) parameters, an aggregated uplink (UL) scheduling pattern for a wireless device (), the aggregated UL scheduling pattern for the wireless device comprising UL resources from a plurality of carriers. The one or more QoS parameters indicate one or more QoS requirements associated with a service. At least one of the one or more QoS parameters indicates a delay requirement 0 associated with the service.

Uplink resource configuration

It is presented a method performed by a network node of a wireless communication network for scheduling a wireless device in uplink. An uplink signal structure is configured to be used by the wireless device and the network node, wherein the uplink signal structure defines transmission subframes divided into symbol periods. The network node applies a short Transmission Time Interval, sTTI, scheduling interval, wherein each sTTI is shorter in time than a subframe and each sTTI comprises at least one symbol period. The method comprises: transmitting a control information message to the wireless device for an sTTI scheduling interval, the control information message comprising uplink scheduling information assigned to the wireless device, the uplink scheduling information indicating a position and a length for at least one of a reference signal and data in the uplink sTTI.

Methods and apparatus for scheduling in uplink

There is provided mechanisms for multiplexed transmission of data packages towards a terminal device. A method is performed by a network node. The method comprises multiplexing, for the terminal device, at least one data package of a first service having a first QoS requirement with at least one of at least two duplicated data packages of a second service having a second QoS requirement, different from the first QoS requirement. The method comprises transmitting the multiplexed data packages towards the terminal device over at least two independent paths. The duplicated data packages are transmitted on mutually different ones of the at least two independent paths.

Multiplexed transmission of data packages towards a terminal device

A method performed by a base station includes determining a reliability requirement for a packet to be transmitted to a wireless device. The reliability requirement is determined based at least in part on a consecutive packet loss associated with at least one previously transmitted packet. Based on the reliability requirement, the packet is transmitted to the wireless device.

Systems and methods to reduce consecutive packet loss for delay critical traffic

The disclosure provides, inter alia, a method performed by a wireless receiving node for receiving a data stream from one or more wireless transmitting nodes, the data stream comprising a sequence of data items. The method comprising: receiving an indication of an algorithm from a wireless transmitting node of the one or more wireless transmitting nodes; receiving a plurality of data packets from the one or more wireless transmitting nodes, each data packet comprising respective duplicate copies of data items belonging to the data stream; and utilizing the algorithm to select, based on respective times at which the data packets are received, for each position in the sequence, one or more of the duplicate copies of data items for reconstruction of the data stream.

Methods, apparatus and machine-readable media relating to transmission and reconstruction of data streams using data duplication

A method performed by a wireless device for wireless transmission of data to a network node of a wireless communication network. The method comprises receiving, from the network node, at a first time slot, a first scheduling grant instructing the wireless device to transmit first data to the network node at a third time slot, and receiving, from the network node, at a second time slot later than the first time slot but earlier than the third time slot, a second scheduling grant instructing the wireless device to transmit second data to the network node at the third time slot. The method further comprises transmitting, to the network node at the third time slot, the second data, and possibly also the first data, in uplink transmission resources of the third time slot, wherein the transmission is performed in accordance with an instruction.

Methods, wireless device and network node for transmission of uplink data

A method for operating a network node in a wireless communication network. The method comprises detecting signals transmitted from wireless communication devices scheduled for uplink transmissions. The method also comprises selecting a subset of the detected signals for decoding. The method also comprises decoding the selected subset and initiating a rescheduling of the wireless communication devices that transmitted the detected signals that were not selected. Also disclosed is a method performed by a network device in a wireless communication network. The method comprises scheduling wireless communication devices for uplink transmissions. The method also comprises obtaining information enabling an identification of a subset of wireless communication devices that transmitted signals using said scheduling but whose transmitted signals were not selected for decoding and rescheduling said subset of wireless communication devices for uplink transmissions. Corresponding network nodes and network devices and relate computer programs are also disclosed.

Methods and devices for controlled uplink scheduling

Growing community of inventors

Sundbyberg, Sweden

Ying Sun