Telefonaktiebolaget Lm Ericsson (publ)

Emerson Energy Systems, Ab

King.com Limited

Mattias Andersson

Yufei W Blankenship

Sara Sandberg

Stefan Parkvall

Zhenhua Zou

Dennis Sundman

Kittipong Kittichokechai

Niklas Andgart

Jonas Fröberg Olsson

Amirpasha Shirazinia

Robert Baldemair

Helka-Liina Määttanen

Daniel Chen Larsson

Sorour Falahati

David Astely

Ali Behravan

Gustav Wikström

Laetitia Falconetti

Alexey Shapin

Bikramjit Singh

Thomas Sahlstrom

Jung-Fu Cheng

Henrik Sahlin

Stefan Wager

Dennis Hui

Siva Dharshan Muruganathan

Jianwei Zhang

Per Synnergren

Ivana Maric

Hanzhi Zhang

Mattias Frenne

Erik Bengt Dahlman

Johan Mikael Bergman

Shaohua Li

Jingya Li

Ying Sun

Abdulrahman Alabbasi

Gustav Almquist

Paul Schliwa-Bertling

Yi-Pin Eric Wang

Erik A Eriksson

John Walter Diachina

Ajit Nimbalker

Shiwei Gao

Martin Hessler

Sebastian Faxér

Pradeepa Ramachandra

Yu Yang

Miguel Lopez

Kumar Balachandran

Joachim Sachs

Xinghua Song

Torsten Dudda

Osman Nuri Can Yilmaz

Yutao Sui

Jose Luis Pradas

János Farkas

Sándor Rácz

Dinand Roeland

Henrik Enbuske

Patrik Salmela

Stefano Ruffini

György Miklós

Nianshan Shi

Bernard Smeets

Anna Larmo

José Araújo

Magnus Sandgren

Balázs Varga

Geza Szabo

Harald Gustafsson

Kimmo Juhani Hiltunen

Caner Kilinc

Per Persson

Anders Hansson

Majid Gerami

Norbert Reider

Joakim Persson

Zsolt Kenesi

Ola Angelsmark

András Kern

Gabor Nemeth

Kun Wang

Alexandros Palaios

Dhruvin Patel

Hubertus Andreas Munz

Helka-Liina Maattanen

Sebastian FAXÉR

Magnus Malmberg

Sandor Racz

Johan Lundsjö

Mårten Wahlström

Gábor Németh

Igor Perez-Uria

Géza Szabó

Johan Kristofer Olsson

Fredrik Svensson

Johannes Nygren

Anders Höglund

A system and method for selecting a number of cyclic redundancy check bits in a communication system. In one embodiment, an apparatus operating in a communication system is configured to receive scheduling information from the communication system, and determine an information block length (K) and/or code rate (R) for a code block including a sequence of data bits from the scheduling information. The apparatus is further configured to determine a number of cyclic redundancy check (CRC) bits as a function of the information block length (K) and/or code rate (R) for the code block.

Cyclic redundancy check selection

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 method for repeating a Transport Block (TB) over multiple transmission occasions. The method includes exchanging specific signaling between a wireless device (e.g., a user equipment) and a network node (e.g., a base station) to repeat same or different redundancy versions of the TB in multiple non-overlapping transmission occasions (e.g., mini-slots) corresponding to multiple Transmission Configuration Indication (TCI) states and having different start positions. More specifically, the network node transmits a Time Domain Resource Allocation (TDRA) to indicate the multiple non-overlapping transmission occasions and the wireless device receives the TDRA indicating the multiple non-overlapping transmission occasions. Accordingly, the wireless device can receive repetition of the TB according to the TDRA. By indicating transmission occasions in the TDRA, it is possible to efficiently schedule multiple transmission occasions over the multiple TCI states, thus helping to improve efficiency, reliability, and coverage in a wireless communications network.

Method for repeating a transport block (TB) over multiple transmission/reception points (TRPs)

A method of producing a set of coded bits from a set of information bits for transmission between a first node and a second node in a wireless communications system, the method comprises generating a codeword vector by encoding the set of information bits with a low-density parity-check code, wherein the codeword vector is composed of systematic bits and parity bits. The method comprises performing circular buffer-based rate matching on the generated codeword vector to produce the coded bits for transmission, wherein the circular buffer-based rate matching comprises puncturing a first plurality of systematic bits.

Rate matching methods for LDPC codes

A method by a wireless device includes determining a value of a Sounding Reference Signal (SRS) request field size. The wireless device receives downlink control information (DCI) from a network node. The DCI is received according to a format. The wireless device selects a SRS resource set based on the format of the DCI and the value of the SRS request field size.

Configuration of downlink control information formats

A method for use in a transmitter includes sending a transmission comprising a transport block (TB) comprising a plurality of code blocks (CBs) arranged in one or more code block groups (CBGs). Each code block group includes one or more code blocks and each code block includes a plurality of coded bits. The transmission is sent to a receiver configured to use multi-bit hybrid automatic repeat request (HARQ) feedback per transport block. The method further includes receiving HARQ ACK or NACK feedback from the receiver one or more of the one or more code block groups of the transport block. The method further includes determining a number of code blocks or code block groups to send to the receiver in a retransmission based on at least the received HARQ ACK or NACK feedback.

HARQ handling for nodes with variable processing times

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

A set of resources, e.g. time and frequency resources, used for configured grants for a group of user equipments (UEs) is signalled to a second group of UEs. The second group of UEs consider the signalled set of resources to be reserved, and, therefore, avoid transmitting anything on the set of resources even if they are scheduled to do so.

Methods of signaling reserved resources for ultra-reliable low latency communication (URLLC) traffic

Systems and methods for adapting a timer(s) for a satellite-based radio access network are disclosed. Embodiments of a method performed by a user equipment or a base station and corresponding embodiments of a user equipment or a base station are disclosed. In some embodiments, a method performed by a user equipment or a bases station comprises obtaining an amount of resources elements available and determining a transport block size based on the amount of resources elements available. In some embodiments, repetitions are used. In some embodiments, obtaining the available resource elements amount is based on at least one of: one or more explicit calculations and/or one or more signaled scaling factor(s). In some embodiments, the method further comprises determining (or selecting) a modulation and code rate (MCS) based on the amount of resources elements available.

Transport block size determination for repetition

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

According to some embodiments, a method for use in a wireless transmitter of a wireless communication network comprises encoding information bits using a parity check matrix (PCM) and transmitting the encoded information bits to a wireless receiver. The parity check matrix (PCM) is optimized according to two or more approximate cycle extrinsic message degree (ACE) constraints. In some embodiments, a first portion of the PCM is optimized according to a first ACE constraint and a second portion of the PCM is optimized according to a second ACE constraint.

Shift values for quasi-cyclic LDPC codes

According to some embodiments, a method performed by a wireless device for decoding physical shared channels (PSCHs) comprises, for a plurality of PSCHs in a transmission time interval, determining a first PSCH of the plurality of PSCHs at least partially overlaps in time with a second PSCH of the plurality of PSCHs. Based on comparison of a common characteristic of the first PSCH and the second PSCH, the method comprises selecting one of the first PSCH and the second PSCH to decode and decoding the selected PSCH.

Resolving collision of semi-persistent scheduling data

Devices and methods of operating a network node in a wireless telecommunication network are provided herein. Such methods include generating () a configuration message that includes transmit format data corresponding to a multiple segment transmission on a physical shared channel. The transmit format data includes at least one of transport block size data, TBS, determination data, redundancy version, RV, determination data, starting point and length of PUSCH transmission data, time domain resource allocation, TDRA, table data, and/or demodulated reference signal, DMRS data. Methods include initiating () the transmission of the configuration message to a user equipment, UE, to identify the transmit format data for the multiple segment transmission.

Transmit format for multi-segment PUSCH

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 and network node for configuring a WD, to perform uplink transmissions using an uplink configured grant, UL-CG, or a dynamic grant is provided. The network node signals by radio resource control, RRC, signaling to the WD, a time domain resource assignment, TDRA, table for the uplink transmissions. The network node signals further signals to the WD, an indication of a particular repetition factor to be used by the WD to determine when to perform the uplink transmissions.

Network node, wireless device and methods therein for performing uplink transmissions

Growing community of inventors

Sundbyberg, Sweden

Mattias Andersson