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    APPARATUSES, METHODS AND COMPUTER PROGRAMS FOR DETERMINING TRANSMISSION CONTROL INFORMATION
    1.
    发明授权
    APPARATUSES, METHODS AND COMPUTER PROGRAMS FOR DETERMINING TRANSMISSION CONTROL INFORMATION 有权

    公开(公告)号：EP3160194B1

    公开(公告)日：2018-08-08

    申请号：EP15306688.1

    申请日：2015-10-21

    申请人： Alcatel Lucent

    发明人： Wich, Andreas ,  Wiegner, Dirk

    IPC分类号： H04W52/14 ,  H04B7/02 ,  H04B7/06 ,  H04L25/02 ,  H04W52/24 ,  H04W52/40 ,  H04W88/08 ,  H04W52/46 ,  H04W52/02 ,  H04W52/36 ,  H04W92/12 ,  H04W72/04 ,  H04W72/08

    CPC分类号： H04W52/0206 ,  H04B17/318 ,  H04B17/336 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0208 ,  H04L25/0212 ,  H04L25/0224 ,  H04L25/0228 ,  H04L25/0242 ,  H04L25/0258 ,  H04W52/14 ,  H04W52/241 ,  H04W52/242 ,  H04W52/243 ,  H04W52/245 ,  H04W52/367 ,  H04W52/40 ,  H04W72/0473 ,  H04W88/085 ,  H04W92/12

    摘要： Embodiments relate to apparatuses (10; 20), methods and computer programs for determining transmission control information. The Apparatus (10) is suitable for a base band unit (110) of a base station transceiver (100) of a mobile communication system (300), the base station transceiver (100) further comprising one or more radio units (120) configured to wirelessly communicate with the base band unit (110) using one or more wireless fronthaul links. The apparatus (10) comprises at least one output (12) configured to transmit a downlink component of the one or more wireless fronthaul links to the one or more radio units (120). The apparatus (10) further comprises at least one input (14) configured to receive an uplink component of the one or more wireless fronthaul links from the one or more radio units (120). The apparatus (10) further comprises a control module (16) configured to control the at least one output (12) and the at least one input (14). The control module (16) is further configured to transmit a reference signal via the at least one output (12) to the one or more radio units (120). The control module (16) is further configured to receive a loopback version of the reference signal via the at least one input (14) from the one or more radio units (120). The control module (16) is further configured to determine transmission control information based on an attenuation of the reference signal determined based on the loopback version of the reference signal. The transmission control information comprises information related to a per-radio unit transmission power to be used by the one or more radio units (120) for transmissions on the one or more wireless fronthaul links. The control module (16) is further configured to provide the transmission control information to the one or more radio units (120) via the at least one output (12).

    TIME OF ARRIVAL ESTIMATION
    2.
    发明公开
    TIME OF ARRIVAL ESTIMATION 审中-公开
    到达时间估计

    公开(公告)号：EP3315995A2

    公开(公告)日：2018-05-02

    申请号：EP17198251.5

    申请日：2017-10-25

    申请人： Apple Inc.

    发明人： BHATTI, A. Jahshan ,  LEDVINA, M. Brent ,  BRUMLEY, W. Robert ,  ZHANG, Wei ,  WONG, E. Chiu Ngok

    IPC分类号： G01S13/76

    CPC分类号： H04L25/0208 ,  G01S5/0215 ,  G01S5/0273 ,  G01S11/02 ,  G01S13/765 ,  H04B17/30 ,  H04B17/364 ,  H04W84/12

    摘要： The subject system aggregates, or stitches, multiple component channel estimates to generate an aggregated wideband channel estimate that can be used to determine more accurate time of arrival estimations than those determinable from the individual component channel estimates. The subject system also provides for multipath detection on a single channel or an aggregated channel that may be used to facilitate an accurate time of arrival estimation. For example, information derived from the multipath detection may be used to supplement and/or enhance a time of arrival estimation algorithm. The subject system also provides a sounding protocol that allows devices to perform one or more signal exchanges to facilitate generating the aggregated wideband channel estimate and/or to facilitate performing the multipath detection. The protocol allows the devices to perform signal exchanges over one or more channels within a coherence time, and also provides for security mechanisms as well as failure recovery.

    摘要翻译： 该主题系统聚合或缝合多个分量信道估计以生成可用于确定比从单独分量信道估计可确定的估计更准确的到达时间估计的聚合宽带信道估计。 主题系统还提供了可用于促进准确到达时间估计的单个信道或聚合信道上的多径检测。 例如，可以使用从多径检测导出的信息来补充和/或增强到达时间估计算法。 本主题系统还提供了一种探测协议，该协议允许设备执行一个或多个信号交换以促进生成聚合的宽带信道估计和/或有助于执行多径检测。 该协议允许设备在一致时间内通过一个或多个通道进行信号交换，并提供安全机制以及故障恢复。

    METHOD AND NODE RELATED TO CHANNEL ESTIMATION
    7.
    发明公开
    METHOD AND NODE RELATED TO CHANNEL ESTIMATION 有权
    方法和节点进行信道估计

    公开(公告)号：EP2777185A1

    公开(公告)日：2014-09-17

    申请号：EP11874044.8

    申请日：2011-10-13

    申请人： Telefonaktiebolaget LM Ericsson (PUBL)

    发明人： YU, LuSheng ,  GÖRANSSON, Bo ,  HUANG, Jinliang ,  YANG, Yu

    IPC分类号： H04J11/00 ,  H04L25/02

    CPC分类号： H04W24/02 ,  H04J11/005 ,  H04L25/0202 ,  H04L25/0208 ,  H04L27/2647

    摘要： The present invention relates to a method for estimating a channel between a receiving node and a first transmitting node. The method comprises determining (210) a first and a second sub-carrier associated with the channel, and multiplying (220) a signal received on the first sub-carrier with a first number to form a first resulting signal. The first number multiplied with a known signal transmitted by a second transmitting node on the first sub-carrier equals to a constant value. The method further comprises multiplying (230) a signal received on the second sub-carrier with a second number to form a second resulting signal. The second number multiplied with the known signal transmitted by the second transmitting node on the second sub-carrier equals to the constant value. The method also comprises subtracting (240) the second resulting signal from the first resulting signal to obtain a signal for which interference from the second transmitting node is suppressed, and estimating (250) the channel based on the obtained signal.

    Mimo-ofdm channel estimation based on phase-offset pilot symbols
    8.
    发明公开
    Mimo-ofdm channel estimation based on phase-offset pilot symbols 有权
    MIMO-OFDM-Kanalschätzungauf Grundlage von Phasenverschiebungs-Pilotsymbolen

    公开(公告)号：EP2747332A1

    公开(公告)日：2014-06-25

    申请号：EP12199250.7

    申请日：2012-12-21

    申请人： Panasonic Corporation

    发明人： Klenner, Peter

    IPC分类号： H04L5/00 ,  H04L25/02

    CPC分类号： H04L5/0023 ,  H04L5/0048 ,  H04L25/0208 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/0232

    摘要： The present invention relates to a transmitter having a plurality M of antennas for transmitting a plurality of OFDM symbols, wherein the OFDM symbols comprise a plurality of pilot symbols which are used at a receiver in order to estimate channel characteristics, and wherein the plurality M of antennas comprise at least a first and a second antenna and the pilot symbol transmitted by the second antenna have a phase offset with respect to the pilot symbol transmitted by the first antenna. Additionally, the invention relates to a corresponding receiver and transmission system and method.

    摘要翻译： 本发明涉及具有用于发送多个OFDM符号的多个天线的发射机，其中OFDM符号包括在接收机处使用的多个导频符号，以便估计信道特性，并且其中多个M个 天线包括至少第一和第二天线，并且由第二天线发送的导频符号相对于由第一天线发送的导频符号具有相位偏移。 此外，本发明涉及相应的接收机和传输系统和方法。

    METHOD AND DEVICE FOR JUDGING RADIO LINK FAILURE IN CARRIER AGGREGATION TECHNOLOGY
    9.
    发明公开
    METHOD AND DEVICE FOR JUDGING RADIO LINK FAILURE IN CARRIER AGGREGATION TECHNOLOGY 有权
    方法和设备进行评估无线链路故障在载体采集技术

    公开(公告)号：EP2466944A4

    公开(公告)日：2013-06-26

    申请号：EP10807859

    申请日：2010-08-13

    申请人： CHINA ACADEMY OF TELECOMM TECH

    发明人： CHEN LI ,  LIU JIAMIN ,  LIANG JING

    IPC分类号： H04L5/00 ,  H04L25/02 ,  H04W24/10 ,  H04W76/02

    CPC分类号： H04W24/08 ,  H04L5/001 ,  H04L5/005 ,  H04L25/0208 ,  H04W24/10 ,  H04W52/0216 ,  H04W76/027 ,  H04W76/028

    摘要： The present invention discloses a method and device for judging Radio Link Failure (RLF) in Carrier Aggregation (CA) technology, which are used to effectively judge whether a radio link is failed or not in CA technology. Said method comprises: on an evaluation point, comparing the determined radio link quality parameter of each carrier participating in the RLF judgement with the corresponding radio link quality parameter threshold, determining whether to trigger an in-sync indication or out-of-sync indication on the evaluation point, and judging whether the radio link of the User Equipment (UE) is failed according to the number of the continuously received in-sync indications or out-of-sync indications. The embodiment of the present invention determines whether to trigger an in-sync indication or out-of-sync indication by comparing the radio link quality parameters of the carriers participating in the RLF judgement with the corresponding radio link quality parameter thresholds, and thereby judges that whether the radio link is failed or not in CA technology.