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    METHOD AND APPARATUS FOR TRANSMITTING CHANNEL STATE INFORMATION-REFERENCE SIGNAL (CSI-RS)
    52.
    发明公开
    METHOD AND APPARATUS FOR TRANSMITTING CHANNEL STATE INFORMATION-REFERENCE SIGNAL (CSI-RS) 审中-公开

    公开(公告)号：EP3349521A1

    公开(公告)日：2018-07-18

    申请号：EP15905079.8

    申请日：2015-09-30

    申请人： Huawei Technologies Co., Ltd.

    发明人： XU, Kai ,  LI, Xiaocui

    IPC分类号： H04W72/04 ,  H04B7/06

    CPC分类号： H04L5/0048 ,  H04B7/06 ,  H04B7/0684 ,  H04L5/0023 ,  H04L27/2613 ,  H04W72/04

    摘要： Embodiments of the present invention provide a method and an apparatus for transmitting a channel state information-reference signal CSI-RS. The method includes: determining, by a base station based on one physical resource block PRB pair, a first configuration mode used for a CSI-RS, where a resource element RE occupied in the first configuration mode is obtained by aggregating all or a part of resource elements REs occupied in at least two second configuration modes used for the CSI-RS; the first configuration mode is a configuration mode for more than eight CSI-RS ports, and includes a correspondence between each CSI-RS port and a resource element RE; and the second configuration mode is a configuration mode for eight CSI-RS ports, and comprises a correspondence between each CSI-RS port and a resource element RE; and transmitting, by the base station, the CSI-RS to user equipment by using the first configuration mode. This ensures that a user terminal can receive a CSI-RS signal in time while improving a system throughput, so as to improve channel estimation efficiency.

    METHOD AND DEVICE FOR TRANSMITTING OR RECEIVING A SIGNAL
    53.
    发明公开
    METHOD AND DEVICE FOR TRANSMITTING OR RECEIVING A SIGNAL 审中-公开

    公开(公告)号：EP3334058A1

    公开(公告)日：2018-06-13

    申请号：EP15902615.2

    申请日：2015-09-02

    申请人： Huawei Technologies Co., Ltd.

    发明人： QU, Bingyu ,  LIU, Jianqin ,  LIU, Kunpeng ,  ZHOU, Yongxing

    IPC分类号： H04B7/12

    CPC分类号： H04B7/12 ,  H04B7/0684 ,  H04B7/26 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2614 ,  H04L27/2621 ,  H04L27/2636 ,  H04L27/3411

    摘要： A signal sending method includes: mapping, by a sending device, a first sequence onto M even-numbered subcarriers in 2 M subcarriers, and mapping a second sequence onto M odd-numbered subcarriers in the 2 M subcarriers, where the first sequence is one of a third sequence and a fourth sequence, the second sequence is the other of the third sequence and the fourth sequence, the 2 M subcarriers are subcarriers on a same time domain symbol, and for elements of a second time domain sequence corresponding to the fourth sequence and a first time domain sequence corresponding to the third sequence at a same moment, when a complex factor is taken out, one of the first time domain sequence and the second time domain sequence is an in-phase component, and the other is a quadrature component; and transforming, by the sending device, sequences mapped onto the 2 M subcarriers to a time domain to generate transmit signals, and then sending the transmit signals. According to the foregoing method, two signals are transmitted on the same time domain symbol, and a low peak-to-average ratio is kept.

    METHOD AND APPARATUS FOR RECEIVING CHANNEL STATE INFORMATION-REFERENCE SIGNALS IN WIRELESS COMMUNICATION SYSTEM
    54.
    发明公开
    METHOD AND APPARATUS FOR RECEIVING CHANNEL STATE INFORMATION-REFERENCE SIGNALS IN WIRELESS COMMUNICATION SYSTEM 有权
    用于在无线通信系统中接收信道状态信息参考信号的方法和设备

    公开(公告)号：EP3300420A1

    公开(公告)日：2018-03-28

    申请号：EP17201329.4

    申请日：2013-09-11

    申请人： LG Electronics Inc.

    发明人： KIM, Kijun ,  PARK, Jonghyun

    IPC分类号： H04W24/10 ,  H04J11/00

    CPC分类号： H04L5/0048 ,  H04B7/068 ,  H04B7/0684 ,  H04L5/0023 ,  H04L5/0057 ,  H04L5/0082 ,  H04L27/2601

    摘要： A method of transmitting channel state information (CSI)-reference signals (RS) at a base station in a wireless communication system includes generating a reference signal sequence, and mapping the reference signal sequence to resource elements (REs) included in one or more patterns for 8-port CSI-RS transmission among five patterns for 8-port CSI-RS transmission located in a first region of a PRB pair and three patterns for 8-port CSI-RS transmission located in a second region of the PRB pair. A maximum of two OFDM (orthogonal frequency division multiplexing) symbols is used for a physical downlink control channel in a subframe including the PRB pair.

    摘要翻译： 一种在无线通信系统中在基站处传输信道状态信息（CSI） - 参考信号（RS）的方法包括：生成参考信号序列，并且将参考信号序列映射到包括在一个或多个模式中的资源元素（RE） 用于位于PRB对的第一区域中的用于8端口CSI-RS传输的五个模式中的8端口CSI-RS传输和用于位于PRB对的第二区域中的8端口CSI-RS传输的三个模式。 最多两个OFDM（正交频分复用）符号被用于包括PRB对的子帧中的物理下行链路控制信道。

    SIGNALING ADAPTED CSI-RS PERIODICITIES IN ACTIVE ANTENNA SYSTEMS
    56.
    发明公开
    SIGNALING ADAPTED CSI-RS PERIODICITIES IN ACTIVE ANTENNA SYSTEMS 审中-公开
    信号在主动天线系统中的适应CSI-RS周期

    公开(公告)号：EP3221979A1

    公开(公告)日：2017-09-27

    申请号：EP15801265.8

    申请日：2015-11-18

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： FRENNE, Mattias ,  KAZMI, Muhammad ,  HARRISON, Mark ,  NAMMI, Sairamesh

    IPC分类号： H04B7/04 ,  H04B7/06

    CPC分类号： H04W74/006 ,  H01Q21/28 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0684 ,  H04B7/0689 ,  H04W72/14 ,  H04W74/04

    摘要： A method in a network node is disclosed. The method comprises grouping a plurality of antenna ports corresponding to a plurality of channel state information reference signals (CSI-RS) into at least a first CSI-RS antenna port group and a second CSI-RS antenna port group, and determining, based at least in part on one or more criteria, a first transmission periodicity for the first CSI-RS antenna port group and a second transmission periodicity for the second CSI-RS antenna port group. The method further comprises transmitting, to one or more user equipment, the CSI-RS corresponding to the antenna ports in the first CSI-RS antenna port group according to the determined first transmission periodicity, and transmitting, to the one or more user equipment, the CSI-RS corresponding to the antenna ports in the second CSI-RS antenna port group according to the determined second transmission periodicity.

    摘要翻译： 公开了一种网络节点中的方法。 该方法包括将对应于多个信道状态信息参考信号（CSI-RS）的多个天线端口分组为至少第一CSI-RS天线端口组和第二CSI-RS天线端口组，并且基于 至少部分地基于一个或多个准则确定第一CSI-RS天线端口组的第一传输周期和第二CSI-RS天线端口组的第二传输周期。 该方法还包括：根据确定的第一传输周期向一个或多个用户设备传输与第一CSI-RS天线端口组中的天线端口对应的CSI-RS，并且向一个或多个用户设备传送对应于第一CSI- 根据确定的第二传输周期，确定第二CSI-RS天线端口组中的天线端口对应的CSI-RS。

    METHODS, MOBILE DEVICES AND NODES FOR USE IN A MOBILE COMMUNICATION NETWORK
    60.
    发明公开
    METHODS, MOBILE DEVICES AND NODES FOR USE IN A MOBILE COMMUNICATION NETWORK 审中-公开
    方法，移动设备和用于移动通信网络的节点

    公开(公告)号：EP2984766A4

    公开(公告)日：2016-11-30

    申请号：EP13878771

    申请日：2013-03-22

    申请人： ERICSSON TELEFON AB L M

    发明人： NAMMI SAIRAMESH ,  KAZMI MUHAMMAD

    IPC分类号： H04B7/04 ,  H04B7/08 ,  H04L1/00

    CPC分类号： H04L1/0003 ,  H04B7/0684 ,  H04L1/0009 ,  H04L1/0015

    摘要： There is provided a method of operating a mobile device that is configured to receive multi-antenna downlink transmissions from a network node, the mobile device being configured to perform link adaptation to select a suitable modulation and/or coding scheme, MCS, from a plurality of available modulation and/or coding schemes, MCSs, for the multi-antenna downlink transmission, the method comprising (i) determining whether to use an unrestricted set of MCSs or a restricted set of MCSs when performing link adaptation for the multi-antenna downlink transmission, the unrestricted set of MCSs comprising all of the plurality of available MCSs, the restricted set comprising a subset of the plurality of available MCSs; and (ii) performing the link adaptation to select the MCS for the multi-antenna downlink transmission using the unrestricted or restricted set of MCSs determined in step (i).