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公开(公告)号：US11277239B2
公开(公告)日：2022-03-15
申请号：US16619426
申请日：2018-06-22
Applicant: Nokia Technologies Oy
Inventor： Tero Ihalainen , Kari Pajukoski , Youngsoo Yuk
IPC: H04B5/00 , H04L5/00 , H04B7/0413 , H04B7/26 , H04W72/04
Abstract: Systems, methods, apparatuses, and computer program products relating to phase tracking reference signal (PT-RS) design, for example, for discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM), are provided. One method may include forming, by a network node, a phase tracking reference signal (PT-RS) sample sequence using outer-most constellation points corresponding to scheduled modulation order of data channel, and scrambling the phase tracking reference signal (PT-RS) sample sequence with a user equipment-specific sequence.
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公开(公告)号：US11671187B2
公开(公告)日：2023-06-06
申请号：US17191804
申请日：2021-03-04
Applicant: Nokia Technologies Oy
Inventor： Karthik Upadhya , Martti Moisio , Dani Korpi , Tero Ihalainen , Mikko Uusitalo
IPC: H04B17/27 , H04B17/373 , H04B17/382 , H04W64/00
CPC classification number: H04B17/27 , H04B17/373 , H04B17/382 , H04W64/006
Abstract: An apparatus and method is disclosed, in which the apparatus comprising circuitry configured for: estimating or determining a future communications state for each of a plurality a mobile devices K associated with a base station, the future communications state being indicative of the mobile device communicating in an uplink to a base station or in a downlink from the base station at a future time slot t or being idle and also determining a target position of at least one of the mobile devices, based at least partly on its estimated communication state, for enabling re-positioning of said at least one mobile device to the determined target position substantially at said future time slot t.
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公开(公告)号：US11477058B2
公开(公告)日：2022-10-18
申请号：US16637689
申请日：2017-08-11
Applicant: Nokia Technologies Oy
Inventor： Tero Ihalainen , Kari Pajukoski , Toni Levanen , Ville Syrjälä
Abstract: An inter-carrier interference method comprises: receiving one or more OFDM signal comprising plural blocks of OFDM subcarriers of a first type and plural blocks of OFDM subcarriers of a second type, wherein the frequencies of the subcarriers of each block of OFDM subcarriers of the first type are contiguous and wherein the plural blocks of subcarriers of the first type are distributed amongst the plural blocks of subcarriers of the second type; for each of the plural blocks of subcarriers of the first type, estimating inter-carrier interference components; estimating inter-carrier interference components for the subcarriers of the second type using the inter-carrier interference components estimated for the plural blocks of subcarriers of the first type; and compensating for inter-carrier interference in the plural blocks of subcarriers of the second type using the inter-carrier interference components estimated for the sub-carriers of the second type, thereby to generate plural compensated blocks of subcarriers of the second type.
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公开(公告)号：US20210281336A1
公开(公告)日：2021-09-09
申请号：US17191804
申请日：2021-03-04
Applicant: Nokia Technologies Oy
Inventor： Karthik UPADHYA , Martti Moisio , Dani Korpi , Tero Ihalainen , Mikko Uusitalo
IPC: H04B17/27 , H04B17/373 , H04B17/382 , H04W64/00
Abstract: An apparatus and method is disclosed, in which the apparatus comprising circuitry configured for: estimating or determining a future communications state for each of a plurality a mobile devices K associated with a base station, the future communications state being indicative of the mobile device communicating in an uplink to a base station or in a downlink from the base station at a future time slot t or being idle and also determining a target position of at least one of the mobile devices, based at least partly on its estimated communication state, for enabling re-positioning of said at least one mobile device to the determined target position substantially at said future time slot t.
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