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    Method and apparatus for supporting multiple reference signals in OFDMA communication systems
    143.
    再颁专利
    Method and apparatus for supporting multiple reference signals in OFDMA communication systems 有权

    公开(公告)号：USRE47344E1

    公开(公告)日：2019-04-09

    申请号：US14842548

    申请日：2015-09-01

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Aris Papasakellariou ,  Joon-Young Cho ,  Ju-Ho Lee ,  Jin-Kyu Han

    IPC: H04W72/04 ,  H04L5/00 ,  H04J11/00 ,  H04L25/02

    Abstract: Methods and apparatuses are described for a Node B to transmit Reference Signals (RS) from multiple antennas to enable User Equipments (UEs) to perform demodulation of received information signals and to estimate Channel Quality Indication (CQI) metrics. To minimize overhead and enable backward compatible operation with legacy systems, RS from a first set of Node B antennas are transmitted in every transmission time interval and substantially over the whole operating BandWidth (BW). RS from a second set of Node B antennas serving for CQI estimation are periodically transmitted, substantially over the whole operating BW, with transmission period informed to UEs through broadcast signaling by the Node B and starting transmission sub-frame determined from the identity of the cell served by the Node B. RS from the second set of antennas, and new RS from the first set of antennas, serving for demodulation of information signals have substantially the same BW as the information signals which can be smaller than the operating BW.

    Method and apparatus for supporting multiple reference signals in OFDMA communication systems
    144.
    再颁专利
    Method and apparatus for supporting multiple reference signals in OFDMA communication systems 有权

    公开(公告)号：USRE47326E1

    公开(公告)日：2019-03-26

    申请号：US14877482

    申请日：2015-10-07

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Aris Papasakellariou ,  Joon-Young Cho ,  Ju-Ho Lee ,  Jin-Kyu Han

    IPC: H04W4/00 ,  H04L5/00 ,  H04J11/00 ,  H04L25/02 ,  H04W72/04

    Abstract: Methods and apparatuses are described for a Node B to transmit Reference Signals (RS) from multiple antennas to enable User Equipments (UEs) to perform demodulation of received information signals and to estimate Channel Quality Indication (CQI) metrics. To minimize overhead and enable backward compatible operation with legacy systems, RS from a first set of Node B antennas are transmitted in every transmission time interval and substantially over the whole operating BandWidth (BW). RS from a second set of Node B antennas serving for CQI estimation are periodically transmitted, substantially over the whole operating BW, with transmission period informed to UEs through broadcast signaling by the Node B and starting transmission sub-frame determined from the identity of the cell served by the Node B. RS from the second set of antennas, and new RS from the first set of antennas, serving for demodulation of information signals have substantially the same BW as the information signals which can be smaller than the operating BW.

    Method and apparatus for supporting multiple reference signals in OFDMA communication systems
    145.
    再颁专利
    Method and apparatus for supporting multiple reference signals in OFDMA communication systems 有权

    公开(公告)号：USRE47259E1

    公开(公告)日：2019-02-26

    申请号：US14877494

    申请日：2015-10-07

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Aris Papasakellariou ,  Joon-Young Cho ,  Ju-Ho Lee ,  Jin-Kyu Han

    IPC: H04W4/00 ,  H04L5/00 ,  H04W72/04 ,  H04L25/02 ,  H04J11/00

    Abstract: Methods and apparatuses are described for a Node B to transmit Reference Signals (RS) from multiple antennas to enable User Equipments (UEs) to perform demodulation of received information signals and to estimate Channel Quality Indication (CQI) metrics. To minimize overhead and enable backward compatible operation with legacy systems, RS from a first set of Node B antennas are transmitted in every transmission time interval and substantially over the whole operating BandWidth (BW). RS from a second set of Node B antennas serving for CQI estimation are periodically transmitted, substantially over the whole operating BW, with transmission period informed to UEs through broadcast signaling by the Node B and starting transmission sub-frame determined from the identity of the cell served by the Node B. RS from the second set of antennas, and new RS from the first set of antennas, serving for demodulation of information signals have substantially the same BW as the information signals which can be smaller than the operating BW.

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