Telefonaktiebolaget Lm Ericsson (publ)

Optis Wireless Technology, LLC

Ericsson Gmbh

Other

Unwired Planet, LLC

Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Optis Cellular Technology, LLC

Withrow & Terranova, Pllc

Lenovo Group Limited

Furuskog, Johan

Jung-Fu Cheng

Daniel Chen Larsson

Havish Koorapaty

Robert Baldemair

Mattias Frenne

Sorour Falahati

Stefan Parkvall

Amitav Mukherjee

Stephen J Grant

Dennis Hui

Yi-Pin Eric Wang

Yu Yang

Dirk Gerstenberger

Johan Furuskog

Xingqin Lin

Jiann-Ching Guey

Yufei W Blankenship

Ajit Nimbalker

Gen Li

Erik A Eriksson

Rajaram Ramesh

Gregory Edward Bottomley

Henning Wiemann

Ali S Khayrallah

Johan Rune

Kumar Balachandran

Muhammad Ali Kazmi

Iana Siomina

Gunnar Mildh

Ravikiran Nory

Henrik Sahlin

Min Wang

Leif Wilhelmsson

Magnus Stattin

David Astely

Mattias Bergström

Bo Göransson

Xinghua Song

Marco Belleschi

Erik Bengt Dahlman

Andres Reial

Stefano Sorrentino

George Jöngren

Rui Fan

Joakim Axmon

Lei Wan

Johan Torsner

Miguel Lopez

Janne Peisa

Michael Meyer

Shaohua Li

Niklas Johansson

Ali Behravan

Peter Alriksson

Arne Simonsson

David Hammarwall

Reem Karaki

Karl James Molnar

Leonid Krasny

Du Ho Kang

Meng Wang

Ning He

Kambiz Casey Zangi

Jingya Li

Zhipeng Lin

Laetitia Falconetti

Yang Hu

Fredrik Ovesjö

Asbjörn Grövlen

Fredrik Lindqvist

Christian Hoymann

Anders Furuskär

Mattias Andersson

Christian Bergljung

Sara Sandberg

Christian Skärby

Carola Faronius

Johan Nilsson

Mats Folke

Eva Englund

Per Skillermark

Jianwei Zhang

Håkan Andersson

Johan Axnäs

Reza Moosavi

Zhenhua Zou

Dongsheng Yu

Guido Roland Hiertz

Chester Park

Mattias Tan Bergström

Sina Maleki

Håkan Björkegren

Douglas Allan Cairns

Thomas Nilsson

Mats Fredrik Sagfors

George Jongren

Mai-Anh Phan

Stefan Eriksson Löwenmark

Farshid Ghasemzadeh

David Sugirtharaj

A wireless device () and a method for enabling access to a radio network node () as well as a radio network node () and a method for enabling the wireless device () to enable access to the radio network node () are disclosed. The wireless device () supports a first transmission bandwidth. The radio network node () operates a carrier on a second transmission bandwidth. The first transmission bandwidth is narrower than the second transmission band width. The wireless device () obtains () information about the carrier. The wireless device () determines () a mapping scheme for mapping a set of enumerable elements, e.g. resource blocks or sequence elements, to frequency ranges based on the information about the carrier.

Network nodes and methods for enabling access to a radio network node

A method of performing channel estimation for a radio channel between a transmitter and a receiver of a radio access network, RAN comprises the step of performing an initial channel estimation () of the radio channel for each of a plurality of frequency ranges (), based on a radio signal received on the radio channel from the transmitter, the radio signal comprising a signal sequence () out of the set of signal sequences () in each of the frequency ranges (), to obtain an initial channel estimate () for each frequency range (), and applying a filter () to the initial channel estimates () for the frequency ranges (), a length () of the filter () in the frequency domain being greater than lengths of the frequency ranges (), to obtain a filtered channel estimate () for all subcarriers () in the respective one of the frequency ranges ().

Channel estimation technique

A method, network node and wireless device for fractional reuse of resources with flexible energy detection in unlicensed spectrum are disclosed. According to one aspect, a method in a network node includes associating each of a plurality of sets of resources within a cell with a different energy detection (ED) threshold, the resources in each set of the plurality of sets of resources being at least one of time resources and frequency resources. The method also includes assigning each set of resources of the plurality of sets of resources to a different set of a plurality of sets of wireless devices (WDs).

Fractional reuse of resources with flexible energy detection in unlicensed spectrum

A method, network node and wireless device (WD) for scheduling multiple transport blocks (TB) each over multiple slots using single downlink control information (DCI) are disclosed. According to one aspect, a network node is configured to communicate with a wireless device is provided. The network node includes processing circuitry configured to configure downlink control information, DCI, for scheduling at least one transport block, TB, where at least one of the at least one TB is configured to span more than one slot, and indicate the DCI to the wireless device.

Scheduling multiple transport blocks each over multiple slots using single downlink control information (DCI)

A method, network node and wireless device (WD) for adapting periodic configurations based on spatial relations are disclosed. According to one aspect, a method includes configuring multiple transmission resources or multiple sets of transmission occasions for a radio resource control configured periodic uplink transmission. The method further includes associating each configured uplink transmission received from the WD by the network node with a downlink reference signal, the downlink reference signal provided as a direct or indirect spatial relation reference for the uplink transmission.

Adapting periodic configurations based on spatial relations

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

The present disclosure described systems and methods for providing OTT services to a UE. An exemplary OTT-providing host computer includes a transceiver, a processor, and memory collective configured to provide the OTT service by initiating transmission of user data to the UE. To transmit the user data from the host computer to the wireless device, a network node sends a first control message for assigning a PDSCH, the first control message comprising a first MCS indication as described. The network node sends to the wireless device a second control message for assigning a PDSCH, the second control message comprising a second MCS indication as described. The network node transmits the user data thereafter.

Methods and systems for performance enhancement of downlink shared channels

A method, system and apparatus are disclosed for a network node to communicate with a wireless device (WD). The network node and/or WD are configured to determine a transport block, TB, size based at least in part on a number of resource elements in a plurality of time slots; determine a segmentation of a transport block, TB, having the TB size, the segmentation producing a plurality of segmented code blocks, CBs; determine a channel coding for each of the plurality of segmented CBs, the channel coding producing a plurality of coded CBs; and one of transmit and receive the plurality of coded CB s over the plurality of time slots according to the determined segmentation and the determined channel coding.

Transport block (TB) determination for TB transmission over multiple slots

A first group embodiments provide a method performed by a network node (NN) in a wireless network comprising responsive to a DL data intended for a user equipment (UE), transmitting a first short signal burst to the UE over a channel using a directional beam, and based on detecting a first response to the first short signal burst from the UE indicating that the channel is available, transmitting at least a portion of the DL data to the UE over the channel using the directional beam. A second group embodiments provide a method performed by a NN comprising determining availability of a channel between the network node and the UE using a directional beam, based on determining that the channel is available, transmitting a first resource grant for transmission of a UL data by the UE, and receiving the UL data from the UE over the channel using the directional beam.

Receiver assisted directional channel sensing for NR-U

A method, system and apparatus are disclosed for enabling inter carrier interference compensation for interleaved mapping from virtual to physical resource blocks. In one embodiment, a network node is configured to determine to configure the first signal to be located at a subcarrier except at an edge sub-carrier of a resource block, RB; transmit the configuration of the first signal to the WD; and receive a physical uplink shared channel, PUSCH, signaling and the first signal from the WD based at least in part on the determined configuration. In one embodiment, a WD is configured to perform a de-inter-carrier-interference (de-ICI) filter estimation on a first received signal and a second received signal; apply a de-ICI filter to a third received signal, the de-ICI filter being based on the de-ICI filter estimation; and after the application of the de-ICI filter, de-interleaved map and demodulate the third received signal.

Enabling inter carrier interface compensation for interleaved mapping from virtual to physical resource blocks

A method for accessing a cellular communications network in unlicensed spectrum is provided. More specifically, the method is related to performing a Listen-Before-Talk (LBT) procedure prior to transmitting a Physical Random Access Channel (PRACH) preamble for accessing a New Radio-Unlicensed (NR-U) network. A User Equipment (UE) first performs the LBT procedure. If the LBT procedure is successful, the UE then generates a punctured PRACH preamble and transmits the punctured PRACH preamble. By puncturing the PRACH preamble, it is possible to create a gap(s) for performing the LBT procedure in a way that is backward compatible with existing NR-U specification and does not reduce a number of random access occasions in a slot or a mini-slot. As a result, it is possible to transmit PRACH preambles in consecutive random access occasions, thus helping to increase spectrum utilization and reduce latency in the cellular communications network.

Method for accessing a cellular communications network in unlicensed spectrum

A system and method for providing time domain allocations in a communication system. In an embodiment, an apparatus operable in a communication system and including processing circuitry is configured to receive an indication of a time domain allocation in downlink control information associated with a radio network temporary identifier ('RNTI') identifying the apparatus, and employ the time domain allocation associated with the RNTI for transmissions associated with the apparatus. In another embodiment, an apparatus operable in a communication system and including processing circuitry is configured to associate a time domain allocation with a RNTI identifying a user equipment, and provide an indication of the time domain allocation in downlink control information to allow the user equipment to employ the time domain allocation associated with the RNTI for transmissions associated therewith.

System and method for providing time domain allocations in a communication system

The scheduling flexibility of CSI reference signals enables time and frequency synchronization using multiple non-zero CSI-RSs transmitted in the same subframe, or using CSI-RSs transmitted in the same subframe with other synchronization signals. Also, multiple synchronization signals may be scheduled in the same subframe to enable fine time and frequency synchronization without cell-specific reference signals.

Time and frequency synchronization

Embodiments of the present disclosure provide a method, a transmitter node, a receiver node, and a computer program product for communication of information in a communication channel comprising at least one main band and an adjacent guard band. The method is performed by a transmitter node in a wireless communication network. The method comprises determining whether to transmit information in the guard band based one or more configured transmission parameters associated with the transmitter node. Upon determination to transmit information in the guard band, the method comprises determining transmission power for frequency resources allocated in the guard band based on a spectral mask defining a power density limit across an allocated frequency range. The method further comprises transmitting first information on the frequency resources allocated in the guard band and second information on frequency resources allocated in the main band to a receiver node according to the determined transmission power. Corresponding transmitter node, receiver node and computer program products are also disclosed.

Communication of information using guard band of a communication channel

A method and apparatus are disclosed for configured grant uplink control information (UCI) mapping rules. In one embodiment, a network node is configured to transmit downlink control information for a configured grant physical uplink shared channel, CG-PUSCH; and receive configured grant uplink control information, CG-UCI, on the CG-PUSCH, the CG-UCI being mapped to the CG-PUSCH based at least in part on a presence of at least one Hybrid Automatic Repeat reQuest-acknowledgement, HARQ-ACK. In another embodiment, a wireless device is configured to receive, from the network node, downlink control information for a configured grant physical uplink shared channel, CG-PUSCH; and transmit a configured grant uplink control information, CG-UCI, on the CG-PUSCH, the CG-UCI being mapped to the CG-PUSCH based at least in part on a presence of at least one Hybrid Automatic Repeat reQuest-acknowledgement, HARQ-ACK.

Configured grant uplink control information (UCI) mapping rules

Growing community of inventors

Fremont, CA, United States of America

Jung-Fu Cheng