公开(公告)号：US20220287088A1

公开(公告)日：2022-09-08

申请号：US17753049

申请日：2019-09-04

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Esa Tiirola ,  Kari Hooli ,  Karol Schober ,  Timo Lunttila

IPC: H04W74/08

Abstract: According to an example embodiment, a method may include determining, by a wireless node in a cell, a silent resource pattern for each of a plurality of signal waveform types including at least a single carrier waveform type and a multicarrier waveform type, wherein each silent resource pattern identifies one or more resource elements that are indicated as unused by at least one node of the cell for the signal waveform type; determining, by the wireless node, whether a signal waveform type, of the plurality of signal waveform types, for channel sensing is known by the wireless node; performing, by the wireless node if a signal waveform type for channel sensing is known by the wireless node, channel sensing based on a silent resource pattern for a known signal waveform type for channel sensing of the plurality of signal waveform types; and otherwise, performing, by the wireless node if the signal wave form type for channel sensing is not known by the wireless node, channel sensing based on a silent resource pattern for each of a plurality of the signal waveform types.

公开(公告)号：US20220132482A1

公开(公告)日：2022-04-28

申请号：US17506865

申请日：2021-10-21

Applicant: Nokia Technologies Oy

Inventor： Selahattin GOKCELI ,  Ismael Peruga Nasarre ,  Mikko Valkama ,  Kari Pajukoski ,  Esa Tiirola

IPC: H04W72/04

Abstract: This document discloses a solution for reducing peak-to-average power ratio in a radio device. According to an aspect, an apparatus includes circuitry configured for performing: acquiring a block of modulated symbols to be transmitted over a radio interface; transforming the block of modulated symbols from a time domain into a frequency domain for sub-carrier mapping; performing a time-domain peak detection procedure on the block of modulated symbols before said transforming; upon detecting at least one peak in the block of modulated symbols during the time-domain peak detection procedure, computing a peak correction signal for the block of modulated symbols and allocating the peak correction signal to one or more sub-carriers dedicated to the peak correction signal in the sub-carrier mapping; and upon detecting no peak in the block of modulated symbols during the time-domain peak detection procedure, omitting said computing and said allocating.

公开(公告)号：US20220078841A1

公开(公告)日：2022-03-10

申请号：US17417801

申请日：2019-12-31

Applicant: Nokia Technologies Oy

Inventor： Esa Tiirola ,  Kari Hooli ,  Timo Lunttila ,  Karol Schober

IPC: H04W74/00 ,  H04W74/08

Abstract: In accordance with example embodiments of the invention as disclosed herein there is a method and apparatus to perform at least identifying, by a network node, a need to perform an uplink transmission within a channel occupancy time of radio channel, wherein the network node is scheduled for performing an uplink transmission, and wherein the identifying comprises identifying an energy level of a gap of channel occupancy time of radio when indicated in downlink control information; based on the identifying, setting a duration of a transmission in the channel occupancy time of radio channel; and performing the uplink transmission based on the set duration of the transmission.

公开(公告)号：US11146429B2

公开(公告)日：2021-10-12

申请号：US16083032

申请日：2016-03-23

Applicant: Nokia Technologies Oy

Inventor： Kari Pajukoski ,  Sami Hakola ,  Esa Tiirola

IPC: H04L5/00 ,  H04L27/00 ,  H04L25/03 ,  H04L27/26

Abstract: A technique, including transmitting data and/or control information; and transmitting common phase error and/or inter carrier interference correction reference signal, wherein said common phase error and/or inter carrier interference correction reference signal occupies a variable amount of radio resources.

公开(公告)号：US10939418B2

公开(公告)日：2021-03-02

申请号：US16337211

申请日：2017-09-21

Applicant: Nokia Technologies Oy

Inventor： Kari Pajukoski ,  Esa Tiirola ,  Sami-Jukka Hakola

IPC: H04L5/00 ,  H04W88/02 ,  H04W72/04

Abstract: One embodiment is directed to a method comprising generating at least one symbol of a subframe for control information based on a first subcarrier spacing; generating at least one data symbol of the subframe based on a second subcarrier spacing; and transmitting the subframe comprising the at least one symbol for control information and at least one data symbol. Another embodiment is directed to a method comprising receiving a subframe comprising at least one symbol for control information and at least one data symbol; decoding the at least one symbol for control information based on a first subcarrier spacing; and obtaining from the decoded at least one symbol information regarding a second subcarrier spacing used on the at least one data symbol.

公开(公告)号：US10461895B2

公开(公告)日：2019-10-29

申请号：US15574953

申请日：2016-05-03

Applicant: Nokia Technologies Oy

Inventor： Claudio Rosa ,  Esa Tiirola ,  Kari Hooli

IPC: H04L1/18 ,  H04L5/00 ,  H04L27/00 ,  H04L1/16

Abstract: Systems, methods, apparatuses, and computer program products for the transmission of uplink (UL) control information via unlicensed spectrum are provided. One method includes dynamically allocating, by a network node, control channel resources for transmitting of uplink control information (UCI). The method may also include scheduling a user equipment with multiple transmission opportunities for each hybrid automatic repeat request (HARQ) acknowledgement/non-acknowledgement (A/N) on the control channel in multiple uplink subframes.

公开(公告)号：US09806862B2

公开(公告)日：2017-10-31

申请号：US14439973

申请日：2012-12-21

Applicant: Nokia Technologies Oy

Inventor： Mauri Nissila ,  Kari Hooli ,  Kari Pajukoski ,  Esa Tiirola

IPC: H04L5/00 ,  H04L27/26 ,  H04B7/024 ,  H04L1/00 ,  H04W28/12 ,  H04W74/00 ,  H04L25/02

CPC classification number: H04L5/003 ,  H04B7/024 ,  H04L1/0048 ,  H04L5/005 ,  H04L5/0051 ,  H04L25/0226 ,  H04L27/2602 ,  H04W28/12 ,  H04W74/002

Abstract: A method for grouping of CS (and comb values) for DM-RS and SRS on shared time-frequency resources is described. The method includes dividing a RS space into at least a first region and a second region. The method also includes allocating, from the first region, a DM-RS sequence CS and/or a DM-RS comb for a DM-RS; and allocating, from the second region, a SRS sequence CS and/or a SRS comb for a SRS. The DM-RS and the SRS are on the same resources on an uplink shared channel (such as a PUSCH for example). The RS space comprises at least one of a CS set and a IFDM comb set. The CS set and/or the IFDM comb set of the first region is based at least in part on a number of physical resource blocks allocated to the uplink shared channel. Apparatus and computer readable media are also described.