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    • 2. 发明公开
    • METHOD FOR MEASURING QUALITY OF DOWNLINK CHANNEL, SENDING END, RECEIVING END AND SYSTEM
    • VERFAHREN ZUM MESSEN DERQUALITÄTEINESABWÄRTSKANALS,SENDESEITE,EMPFÄNGERSEITEUND SYSTEM
    • EP3154208A1
    • 2017-04-12
    • EP14898988.2
    • 2014-07-30
    • Huawei Technologies Co., Ltd.
    • YANG, JingZHOU, HongruiMA, NiGU, Wei
    • H04B7/02
    • H04B7/0632H04B7/0456H04B7/0469H04B7/0473H04B7/0478H04B7/06H04B7/0617H04B7/0639H04B7/0658H04B7/0695H04B7/0697H04L5/0023H04L5/005H04L43/16H04W36/04
    • Embodiments of the present invention disclose a method for measuring downlink channel quality, a transmit end, a receive end, and a system. The method for measuring downlink channel quality includes: transmitting, by a transmit end, at least two mixed pilot signals to a receive end separately by using at least two physical antennas, where the at least two mixed pilot signals are separately obtained after preset pilot signals corresponding to logical antennas in the at least two logical antennas are weighted by using a precoding weight matrix; sending, by the transmit end, a first codebook subset restriction instruction to the receive end, where the first codebook subset restriction instruction carries a rank indication RANK and at least one precoding matrix index PMI; and receiving, by the transmit end, a channel quality feedback message that is fed back by the receive end according to downlink channel quality of an equivalent channel of a specified antenna. According to the present invention, downlink channel quality of an equivalent channel of a specified antenna is accurately acquired, and therefore a suitable serving antenna is selected for a receive end, thereby improving signal quality.
    • 本发明的实施例公开了一种用于测量下行链路信道质量,发送端,接收端和系统的方法。 用于测量下行链路信道质量的方法包括:通过使用至少两个物理天线,通过发送端将至少两个混合导频信号分别发送到接收端,其中至少两个混合导频信号在预置的导频信号之后分开获得 通过使用预编码权重矩阵来对与所述至少两个逻辑天线中的逻辑天线相对应的对应的天线; 由发送端向接收端发送第一码本子集限制指令,其中第一码本子集限制指令携带秩指示RANK和至少一个预编码矩阵索引PMI; 以及由所述发送端接收根据所述指定天线的等效信道的下行链路信道质量由所述接收端反馈的信道质量反馈消息。 根据本发明,精确地获取指定天线的等效信道的下行链路信道质量,因此为接收端选择合适的服务天线,从而提高信号质量。
    • 3. 发明公开
    • DATA TRANSMISSION DEVICE, METHOD AND COMMUNICATION SYSTEM
    • DATENÜBERTRAGUNGSVORRICHTUNG全面的SOWIE KOMMUNIKATIONSSYSTEM
    • EP2566233A1
    • 2013-03-06
    • EP11774425.0
    • 2011-04-29
    • Huawei Technologies Co., Ltd.
    • ZHAO, YongxiangWANG, JingyuYONG, WenyuanGU, Wei
    • H04W28/06
    • H04W28/16H04W8/082H04W48/17H04W88/005H04W88/18H04W92/04H04W92/045H04W92/14
    • The present invention discloses a data transmission device and method and a communication system, which relate to the field of communications technologies, to solve the problem of high operation and maintenance cost of a radio network and low quality of service of a radio broadband service in the prior art. The data transmission device provided in the present invention is located on an IP metropolitan area network node or on an optical line terminal of a radio access network and includes: a first service bypass processing module, configured to receive uplink packet service data sent by a user equipment, determine, according to a preset service distribution policy, that the uplink packet service data needs distribution, and directly send the uplink packet service data to a public data network PDN through a locally preset Gi interface; and/or a second service bypass processing module, configured to directly receive, through the Gi interface, downlink packet service data sent by the PDN to the UE and send the downlink packet service data to the UE. The embodiments of the present invention are applicable to radio communication systems such 3G or LTE.
    • 本发明公开了一种与通信技术领域相关的数据传输装置和方法以及通信系统,以解决无线电网络的高运行和维护成本以及无线电宽带业务的低质量问题 现有技术 本发明提供的数据传输装置位于IP城域网或无线接入网的光线路终端上,包括:第一业务旁路处理模块,用于接收用户发送的上行分组业务数据 设备根据预设服务分配策略确定上行分组业务数据需要分配,并通过本地预设的Gi接口直接发送上行分组业务数据到公用数据网络PDN; 和/或第二服务旁路处理模块,被配置为通过Gi接口直接接收由PDN发送到UE的下行链路分组业务数据,并向UE发送下行分组业务数据。 本发明的实施例可应用于诸如3G或LTE的无线电通信系统。
    • 4. 发明公开
    • DOWNLINK TRANSMISSION SYSTEM AND SWITCHING METHOD
    • EP4184798A1
    • 2023-05-24
    • EP21845563.2
    • 2021-07-06
    • Huawei Technologies Co., Ltd.
    • MA, NiZHANG, GuanxiSHEN, LongCHEN, XiYU, XinWU, YaqiGU, Wei
    • H04B7/0413
    • This application provides a downlink transmitting system and a switching method. The downlink transmitting system includes at least one digital intermediate frequency module group, at least one Tx port group, a plurality of PAs, at least one switching switch, and an antenna array. The plurality of PAs are connected to the antenna array. The plurality of PAs are connected to all Tx ports included in the downlink transmitting system in a one-to-one correspondence. The at least one digital intermediate frequency module group is in a one-to-one correspondence with the at least one Tx port group. Each Tx port group is connected to each digital intermediate frequency module in a corresponding digital intermediate frequency module group through one switching switch. Each Tx port group includes a plurality of Tx ports. A quantity of digital intermediate frequency modules included in each digital intermediate frequency module group is equal to a quantity of Tx ports included in a corresponding Tx port group. Each switching switch includes at least two connection states. Quantities of enabled digital intermediate frequency modules in a digital intermediate frequency module group connected to the switching switch in different connection states are different.