知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

137 records (took 0.086 seconds)

    Reserving time alignment period for OFDMA communications with different numerology parameters
    32.
    发明授权
    Reserving time alignment period for OFDMA communications with different numerology parameters 有权

    公开(公告)号：US10826736B2

    公开(公告)日：2020-11-03

    申请号：US16301126

    申请日：2016-05-13

    Applicant: Nokia Solutions and Networks Oy

    Inventor： Esa Tapani Tiirola ,  Kari Pekka Pajukoski ,  Eeva Lahetkangas

    IPC: H04L27/26 ,  H04W72/04

    Abstract: Coexistence of OFDM transmissions with different sampling rates, subcarrier spacing, symbol duration, bandwidths, but a constant FFT size, all with the same integer ratio (downclocking or upclocking) N=2, 4, 8 . . . Now called different numerology. Problem of Time alignment due to the presence of alternating long CP and short CPs in a slot. At the slot level the transmissions are aligned, but not at the symbol level. The application proposes to send after the first symbol for N=1 a so-called Time Alignment Period of same duration for each transmission in order allegedly to allow the network nodes to synchronize their timings or clocks without interfering with the transmission or reception of any symbols or CPs of other transmissions.

    Discovery in a communication system
    33.
    发明授权
    Discovery in a communication system 有权

    公开(公告)号：US10757558B2

    公开(公告)日：2020-08-25

    申请号：US15850057

    申请日：2017-12-21

    Applicant: Nokia Solutions and Networks Oy

    Inventor： Esa Tapani Tiirola ,  Bernhard Raaf

    IPC: H04W8/00 ,  H04W72/04 ,  H04W40/24 ,  H04W76/14

    Abstract: Discovery of devices in a network of devices comprises assigning resources for the discovery, and providing accordingly at least two discovery patterns of transmission and reception phases for the devices in the network for communication of information between the devices. A device can transmit or receive information in accordance with a dedicated discovery pattern of transmission and reception phases allocated from a set of different discovery patterns.

    Communication efficiency
    34.
    发明授权
    Communication efficiency 有权

    公开(公告)号：US10666404B2

    公开(公告)日：2020-05-26

    申请号：US16426183

    申请日：2019-05-30

    Applicant: NOKIA SOLUTIONS AND NETWORKS OY

    Inventor： Esa Tapani Tiirola ,  Kari Juhani Hooli ,  Timo Erkki Lunttila

    IPC: H04L5/00 ,  H04W56/00 ,  H04W74/00 ,  H04W28/26 ,  H04W72/04 ,  H04W74/08 ,  H04L27/26 ,  H04N21/266 ,  H04L1/16

    Abstract: There is provided a method for defining at least one channel reservation window the method comprising: setting length for each of the at least one channel reservation window such that each channel reservation window comprises a plurality of sub-frames; dividing the length of each channel reservation window into a transmission part and an idle part, wherein the idle part consists of one or more symbols in one sub-frame; maximizing, at a symbol level accuracy, the length of the transmission part such that a ratio between the length of the idle part and the length of the transmission part fulfils a predetermined criterion; and concatenating the transmission part and the idle part so as to form the channel reservation window.

    Transmission power control
    38.
    发明授权
    Transmission power control 有权

    公开(公告)号：US10321416B2

    公开(公告)日：2019-06-11

    申请号：US15544759

    申请日：2015-01-28

    Applicant: Nokia Solutions and Networks Oy

    Inventor： Esa Tapani Tiirola ,  Timo Erkki Lunttila ,  Kari Juhani Hooli ,  Klaus Hugl

    IPC: H04W52/36 ,  H04W52/14 ,  H04W52/24 ,  H04W52/26

    Abstract: Apparatuses and methods for transmission power control are disclosed. A given transmission resource and a first transmission power are determined (202, 204) for transmission. Prior to transmitting on the given transmission resource it is determined (206) whether the resource is occupied or unoccupied. Upon detecting that the resource is occupied, a second, reduced transmission power is determined (210) such that a transmission using the second, reduced transmission power would not render the resource as occupied. The determination of the second transmission power is based at least partially on a predetermined maximum transmission power reduction value. Transmission (212) is done utilizing the given transmission resource using the second transmission power according to the determination.

    Discovery in a Communication System
    39.
    发明申请
    Discovery in a Communication System 审中-公开

    公开(公告)号：US20180376315A1

    公开(公告)日：2018-12-27

    申请号：US15850057

    申请日：2017-12-21

    Applicant: Nokia Solutions and Networks Oy

    Inventor： Esa Tapani Tiirola ,  Bernhard Raaf

    IPC: H04W8/00 ,  H04W72/04 ,  H04W76/14 ,  H04W40/24

    Abstract: Discovery of devices in a network of devices comprises assigning resources for the discovery, and providing accordingly at least two discovery patterns of transmission and reception phases for the devices in the network for communication of information between the devices. A device can transmit or receive information in accordance with a dedicated discovery pattern of transmission and reception phases allocated from a set of different discovery patterns.

    Signal transmission for proximity-based services wireless communications
    40.
    发明授权
    Signal transmission for proximity-based services wireless communications 有权

    公开(公告)号：US09942742B2

    公开(公告)日：2018-04-10

    申请号：US14864390

    申请日：2015-09-24

    Applicant: NOKIA SOLUTIONS AND NETWORKS OY

    Inventor： Weidong Yang ,  Juha Sakari Korhonen ,  Esa Tapani Tiirola ,  Cassio Barboza Ribeiro

    IPC: H04W8/00 ,  H04L5/00 ,  H04W48/16

    CPC classification number: H04W8/005 ,  H04L5/00 ,  H04W48/16

    Abstract: A technique may include transmitting, by a user device in a proximity-based services wireless network via a first time-frequency resource identified by a first logical time index within N logical time resources and a first logical frequency index in the range from 0 to M−1, a first occurrence of a signal for the user device during a transmission period; determining a time index adjustment associated with the first logical frequency index; determining, by the user device, a second logical time index of a second time-frequency resource for transmitting from the user device a second occurrence of the signal within the transmission period, the second logical time index being determined based on the first logical time index and the time index adjustment associated with the first logical frequency index; and transmitting, by the user device via the second time-frequency resource, a second occurrence of the signal during the transmission period.

Patent Agency Ranking