Telefonaktiebolaget Lm Ericsson (publ)

Unwired Planet, LLC

Henrik Sahlin

Stefan Parkvall

Andres Reial

Johan Furuskog

Robert Baldemair

Johan Rune

Jingya Li

Icaro L J Da Silva

Qiang Zhang

Martin Hessler

Gustav Wikström

Lars Lindbom

Niclas Wiberg

Niklas Andgart

Mattias Frenne

Jianfeng Wang

Håkan Andersson

Laetitia Falconetti

Jinhua Liu

Sven Oscar Petersson

Pål Frenger

Dennis Hui

Pradeepa Ramachandra

Fredrik Athley

Andreas Bergström

Erik Bengt Dahlman

Kumar Balachandran

Osman Nuri Can Yilmaz

Erik A Eriksson

Janne Peisa

Miguel Lopez

Karl Werner

Mikael Coldrey

Amitav Mukherjee

Claes Tidestav

Bengt Lindoff

Daniel Chen Larsson

Gunnar Mildh

Fredrik Gunnarsson

Yi-Pin Eric Wang

Jari Tapio Vikberg

Stefan Wager

Magnus Stattin

Joakim Axmon

Karl Norrman

Qianxi Lu

Qingyu Miao

Johan Torsner

Gabor Fodor

Joachim Sachs

Ali S Khayrallah

Gen Li

Thorsten Lohmar

Zhang Zhang

Bo Hagerman

Jonas Fröberg Olsson

Torgny Palenius

Niklas Johansson

Hai Feng Wang

Lars Sundström

Zhan Zhang

Peter Alriksson

Jose Luis Pradas

Pontus Wallentin

Patrik Rugeland

Henrik Asplund

Martin Johansson

Jung-Fu Cheng

Rui Fan

Walter Müller

Anders Furuskär

Mårten Sundberg

Helka-Liina Määttanen

Henning Wiemann

Jan Christoffersson

Mats Folke

Zhipeng Lin

Havish Koorapaty

Andreas Nilsson

Sebastian Faxér

Min Wang

Yu Yang

Johan Nilsson

Mattias Andersson

David Astely

Jacobus Cornelis Haartsen

Anders Wallén

Huaisong Zhu

Ying Sun

Magnus Åström

Stefano Sorrentino

Torbjörn Wigren

Mattias Bergström

Bo Göransson

Zhiheng Guo

Olof Liberg

Arne Simonsson

Reem Karaki

Peter Larsson

Kambiz Casey Zangi

There is disclosed a method of operating a terminal () in a wireless communication network, the method comprising receiving and/or transmitting according to a transmission time interval, TTI, configuration, the TTI configuration indicating at least one short transmitting time interval having between one or two and seven symbols of duration in a subframe. There are also disclosed related methods and devices.

Short TTI patterns

The disclosure relates to signalling of transmissions with shortened TTI. The disclosure further relates to an RBS and a method performed at the RBS of scheduling resources for a wireless communication device. The disclosure still further relates to a wireless communication device and a method performed at the wireless communication device of being granted data transmission or data reception. In a first aspect of the disclosure, a method performed at an RBS is provided for scheduling resources for a wireless communication device including indicating a grant of a resource for the wireless communication device to transmit or receive data based on DCI and a position of the DCI within a data frame of a downlink control channel.

Signaling of transmissions with shortened TTI

Systems and methods for relocating network nodes are provided herein. A network node can determine that relocation of at least one access node in the access network is required. An access node, such an IAB node with mobile capabilities, can be selected to be relocated from a first position to a second position. Relocation messages and parameters can be signaled between the network and the access node.

Dynamic relocation of nodes in a cellular network

A user equipment () is provided for use in a cellular network. The user equipment includes a transceiver (), a processor (), and a memory (). The user equipment () is configured to determine, for a data transmission, a mapping form a demodulation reference signal (DMRS) to a PNT-RS. A DMRS resulting signal is generated from a subset of DMRS for a first resource element in a subcarrier. The DMRS resulting signal is copied from the first resource element to a second resource element assigned to the PNT-RS in the subcarrier. The data transmission is transmitted using the DMRS resulting signal and the PNT-RS.

Systems and methods for phase noise tracking reference signal sequence generation using demodulation reference signals

A method in a UE comprises: receiving a message from a network node comprising information about one or more sets of dedicated random access channel (RACH) resources, each set of dedicated RACH resources associated with a beam associated with a target cell; obtaining an estimate of beam quality for each beam associated with the sets of dedicated RACH resources; determining, based on the obtained estimate of beam quality, whether any beam associated with the one or more sets of dedicated RACH resources meets one or more criteria of a first set of criteria for performing random access; and performing random access based on whether any beam associated with the one or more sets of dedicated RACH resources meets the one or more criteria of the first set of criteria for performing random access.

Multi-beam random access procedure in handover execution

Systems and methods are disclosed for transmission and reception of an uplink grant during a gap created in radio resources assigned by a previous multiple Transmit Time Interval (multi-TTI) uplink grant in a system operating according to a Time Division Duplexing (TDD) scheme. In one embodiment, a method of operation of a wireless device operating according to a TDD scheme in a cellular communications network includes: receiving a first uplink grant from a radio network node that assigns first radio resources for a first multiple transmit time interval uplink transmission, the first radio resources comprising a set of consecutive subframes; and interrupting an uplink transmission on the first radio resources during a gap in the first radio resources assigned for the first multiple transmit time interval uplink transmission, the gap comprising a time domain gap within the set of consecutive subframes.

Uplink multi-TTI scheduling in TDD system

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

According to some embodiments, a method for use in a wireless communication network includes a wireless device receiving, from a network, a configuration corresponding to a Physical Random Access Channel (PRACH). The wireless device receives, from the network via Radio Resource Control (RRC) signaling, a bitmap that provides an indication of time locations corresponding to synchronization signal (SS) blocks. The wireless device determines, based on the configuration and the bitmap, a time slot that does not overlap with the time locations to perform a PRACH transmission during the determined time slot.

Configuring random access channels for wireless communications

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

A method in a network node for managing random-access procedures with a plurality of wireless devices. The method comprising transmitting an indication of a modulation format to one or more of the plurality of wireless devices to configure the modulation format for a random access message 3 transmission from the one or more wireless devices.

Random-access procedure

According to some embodiments, a method in a network node comprises: determining that uplink control information, UCI, and a data payload will be sent via a physical uplink shared channel on a slot/subslot transmission; determining a modulation coding scheme, MCS, offset for transmission of the UCI via the physical uplink shared channel; and communicating the MCS offset to a wireless device. According to some embodiments, a method in a wireless device comprises: determining that UCI and a data payload will be sent via a physical uplink shared channel on a slot/subslot transmission; receiving a MCS offset for transmission of the UCI via the physical uplink shared channel; and communicating, to a network node, the UCI using the MCS offset. The UCI and the data payload may be sent via the physical uplink shared channel with a slot/subslot transmission or a short transmission time interval (sTTI).

Dynamic MCS offset for short TTI

The embodiments herein relate to timing advance offset for uplink/downlink switching in New Radio (NR). In one embodiment, there proposes a method in a wireless communication device, comprising: determining a timing advance (TA) offset for uplink/downlink switching, wherein the TA offset is at least based on the time offset requirement for uplink/downlink switching in different scenarios used in communication between the wireless communication device and a network node; applying the determined TA offset in the uplink communication from the wireless communication device to the network node. With embodiments herein, uplink/downlink switching time for NR is defined.

Timing advance offset for uplink-downlink switching in new radio

According to certain embodiments, a method in a network node comprises determining () whether an additional synchronization signal should be transmitted to one or more wireless devices. The method further comprises transmitting () an indication whether the additional synchronization signal is available for use. For example, in response to determining that the additional synchronization signal should be transmitted, the indication signals a presence of the additional synchronization signal to the one or more wireless devices.

Configuration of additional synchronization signal

There is disclosed a method of operating a network node () in a radio access network, the method comprising detecting Physical Random Access CHannel, PRACH, transmission from a user equipment (), wherein the PRACH transmission covers a plurality of time intervals, wherein detecting comprises associating different weights to different time intervals. The disclosure also pertains to related devices and methods.

PRACH detection in a radio access network

A system and method of Random-Access Response, RAR, messaging when a base station employs narrow beamforming. Multiple RAR messages are successively transmitted from the base station to a User Equipment, UE, before any response to a RAR message is received from the UE. Thus, despite any calibration mismatch between Uplink, UL, and Downlink, DL, beams in the beamformed system, a RAR message is not only received by the UE, but is received over the most-suitable DL beam for that UE. Each RAR message may contain a message-specific scheduling-delay indicator in the UL grant carried in the RAR message to provide an adjustable time delay for the UE's uplink transmission scheduled by the UL grant. Multiple RAR transmissions can schedule a single UL transmission at a specific time instance or different UL transmissions at different time intervals. The UE may report to the base station the best DL RAR transmission detected by the UE.

Random-access response with analog beamforming

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Mölnlycke, Sweden

Henrik Sahlin