Telefonaktiebolaget Lm Ericsson (publ)

Alexey Shapin

Kittipong Kittichokechai

Jonas Fröberg Olsson

Gustav Wikström

Yufei W Blankenship

Ali Behravan

Niklas Andgart

Mattias Andersson

Robert Baldemair

Stefan Parkvall

Sorour Falahati

Jianwei Zhang

Daniel Chen Larsson

John Walter Diachina

Mårten Sundberg

Torsten Dudda

Henrik Enbuske

Sara Sandberg

Paul Schliwa-Bertling

Yi-Pin Eric Wang

Erik A Eriksson

Martin Hessler

Zhenhua Zou

Pradeepa Ramachandra

Miguel Lopez

Kumar Balachandran

Joachim Sachs

Andreas Höglund

Osman Nuri Can Yilmaz

Jose Luis Pradas

Reem Karaki

Sándor Rácz

János Farkas

Ying Sun

Dinand Roeland

György Miklós

Patrik Salmela

Stefano Ruffini

Nianshan Shi

Bernard Smeets

José Araújo

Anna Larmo

Dennis Sundman

Balázs Varga

Magnus Sandgren

Geza Szabo

Florent Munier

Harald Gustafsson

Mai-Anh Phan

Majid Gerami

Abdulrahman Alabbasi

Bikramjit Singh

Kimmo Juhani Hiltunen

Caner Kilinc

David Sandberg

Per Persson

Norbert Reider

András Kern

Joakim Persson

Alexandros Palaios

Zsolt Kenesi

Ola Angelsmark

Gabor Nemeth

Kun Wang

Johan Lundsjö

Hubertus Andreas Munz

Dhruvin Patel

Efthymios Stathakis

Mårten Wahlström

Géza Szabó

Gábor Németh

Johan Kristofer Olsson

Johannes Nygren

Fredrik Svensson

Daniel Larsson

Anders Höglund

Muhammad Ikram Ashraf

Torgny Holmberg

Per Skarin

Malgorzata Svensson

Fedor Chernogorov

Rodrigo Berg

Wolfgang Tonutti

Gustav Wikstrom

Johan Olsson

Jonas Olsson Fröberg

Norberg Reider

Gustav WIKSTRÖM

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

A User Equipment (UE) () configured for operation in a wireless communication network () ignores a received preemption indicator responsive to determining that the involved data transmission by the UE () will carry Uplink Control Information (UCI) from the UE (), at least when the UCI is of a certain type or priority. For example, the UE () ignores the preemption indicator if the UCI is of the certain type or priority, and otherwise follows the preemption indicator by skipping the uplink data transmission. Correspondingly, a radio network node () configured for operation in the wireless communication network () determines whether an uplink data transmission by a UE () on certain radio resources will include UCI, and the radio network node () transmits or does not transmit a preemption indicator preempting use by the UE () of the certain radio resources for the uplink data transmission, in dependence on the determination.

Methods and apparatuses for controlling preemption of uplink transmissions in a communication network

A method, system and apparatus are disclosed for priority indication. In one embodiment, a wireless device is configured to receive a priority indicator associated with a downlink control information, DCI, message, the DCI message being associated with one of an uplink-configured grant, UL-CG, configuration and a downlink-semipersistent assignment, DL-SPS, configuration; and determine a use of the priority indicator associated with the DCI message. In another embodiment, a network node is configured to determine a use of a priority indicator associated with a downlink control information, DCI, message; and send the priority indicator associated with the DCI message according to the determined use, the DCI message being associated with one of an uplink-configured grant, UL-CG, configuration and a downlink-semipersistent assignment, DL-SPS, configuration.

Methods for use of priority indication associated with CG/SPS transmission

Modification of uplink (UL) data transmission with repetition in response to preemption indication is disclosed herein. In one embodiment, a wireless device modifies UL data transmission with repetition responsive to receiving a preemption indication. The wireless device begins a UL data transmission comprising a plurality of repetitions of a data transmission, wherein at least two (2) repetitions are associated with different Redundancy Version (RV) values. The wireless device receives a first preemption indication during a first repetition of the plurality of repetitions, wherein the first repetition is associated with a RV value of X, and X is a positive integer. The wireless device then retransmits the first repetition of the UL data transmission reusing the RV value of X. In some embodiments, after receiving the first preemption indication, the wireless device may cancel the UL data transmission if a code rate of the UL data transmission exceeds a threshold rate.

Modification of uplink (UL) data transmission with repetition in response to preemption indication

A method and apparatus are disclosed for handling DCI size alignment. In one embodiment, a network node is configured to perform a downlink control information, DCI, size alignment procedure based at least in part on a limit of a total number of different DCI sizes that a wireless device, WD, is configured to monitor. The network node is further configured to transmit a DCI message, the DCI message generated according to the DCI alignment procedure. In one embodiment, a WD is configured to monitor a cell for a downlink control information, DCI, message. The WD is further configured to receive and/or decode the DCI message, the DCI message being generated according to a DCI alignment procedure in which a size of the DCI is based at least in part on a limit of a total number of different DCI sizes that the WD is configured to monitor.

Downlink control information (DCI) size handling

A method, system and apparatus for uplink transmission cancellation are disclosed. According to one aspect, a method includes receiving a cancellation indication of uplink resources to be cancelled, determining protected uplink resources to be protected from cancellation, and cancelling transmissions on uplink resources indicated to be cancelled other than uplink resources determined to be protected from cancellation.

Methods of uplink transmission cancellation

A method, network node and a wireless device for multiplexing HARQ feedback are disclosed. According to one aspect, a method includes transmitting a first hybrid automatic repeat request, HARQ, feedback responsive to a first downlink, DL, transmission, the first HARQ feedback transmitted using not more than an indicated number of bits, the first DL transmission having a first priority. The method also includes transmitting a second HARQ feedback responsive to a second DL transmission, the second DL transmission having a second priority higher than the first priority. The method further includes multiplexing the first HARQ feedback and the second HARQ feedback using not more than the indicated number of bits for the first HARQ feedback, to produce a multiplexed HARQ feedback.

Multiplexing hybrid automatic repeat request feedback

A method performed by a first network node is provided. The method includes determining a power backoff indicator (PBI) for a first user equipment (UE) based on at least one of channel conditions of the first UE and channel conditions of a second UE, data reliability requirements of the second UE, and data performance of the first UE. The method includes transmitting the PBI toward the first UE. The method includes receiving second data from the first UE, wherein transmission of the second data has been adjusted based on the PBI. The UE receives the PBI. Responsive to determining to apply the PBI, the UE backs off the power by adjusting the power according to at least one of a configuration and the PBI. The UE transmits second data to the first network node with the backed off or adjusted power.

UE and first network node for handling power adjustments

There is presented a method for operating a user equipment, UE () in a wireless communication network (). The method comprises receiving () a message indicating an uplink radio resource, the uplink resource having occurred before receiving the message. The method further comprises transmitting () a second representation of a data packet based on determining that the indicated uplink radio resource has been used by the UE for transmitting a first representation of the data packet, prior to receiving the message. Additionally, a method for operating a network node () in a wireless communication network () is disclosed, the method comprises detecting () a signal on an uplink resource configured for grant free access and transmitting () a non-UE specific message based on the signal not being successfully received and wherein the non-UE specific message comprises information indicating the uplink resource configured for grant free access. Corresponding network node and user equipment are also presented.

Common NACK for uplink grant-free transmissions

Systems and methods are disclosed herein for transmitting a mixture of critical and non-critical data in a wireless network. In some embodiments, a method performed by a wireless device comprises receiving a configured uplink grant that allocates uplink resources in a plurality of transmission time intervals and determining, at a time t, that critical data is to be transmitted using the configured uplink grant, where a time t+PT occurs after a start of a particular transmission time interval and where PT is a preparation time needed to prepare an uplink transmission on the configured uplink grant. The method further comprises transmitting an uplink transmission comprising the critical data using allocated uplink resources in the particular transmission time interval starting at a time that is at or after the time t+PT. Corresponding embodiments of a wireless device are also disclosed.

Handling misalignment between arrival of critical data for transmission and transmission occasions of a configured grant

According to certain embodiments, a method is disclosed for use in a wireless device being affected by pre-emption. The method comprises receiving information from a network node and performing one or more operations based on the received information. The information indicates a portion of a buffer that is affected by pre-emption. Examples of operations that can be performed based on the received information include flushing the portion of the buffer affected by pre-emption or separately handling the portion of the buffer affected by pre-emption.

Pre-emption indication message

A wireless communication device determines a base value for a transport block size, determines a scaling factor for the transport block size, applies the scaling factor to the base value to determine the transport block size, and receives information from a radio access node according to the determined transport block size.

Transport block size configuration

Preempting a slot with a mini-slot for use in a wireless transmitter of a wireless communication network is presented. The method includes preempting a slot transmission to a wireless receiver with a mini-slot transmission to the wireless receiver, wherein the slot transmission comprises a plurality of time-frequency regions (TFRs), each TFR comprising a plurality of sub-regions. The method further includes transmitting a preemption indication to the wireless receiver, where the preemption indication includes: a TFR position in time of one or more preempted TFRs in the slot transmission, a TFR position in frequency of the one or more preempted TFRs in the slot transmission and an identifier of one or more of the plurality of a sub-regions of the one or more preempted TFRs.

Preemption indication for new radio

A method, network node and wireless device are disclosed. According to one aspect, a network node is configured to select between a first mode of operation and a second mode of operation. The first mode of operation includes generating a first downlink control information (DCI) message having a first number of bits. The second mode of operation includes selecting or generating a second DCI message having a second number of bits less that the first number of bits in at least one of the following fields: a redundancy version (RV) field, a modulation and coding scheme (MCS) field and a hybrid automatic repeat request (HARQ) process field.

Compact downlink control information messages

Growing community of inventors

Luleå, Sweden

Alexey Shapin