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    • 3. 发明申请
    • METHOD AND APPARATUS FOR FACILITATING REFERENCE SIGNAL TRANSMISSION
    • 用于促进参考信号传输的方法和设备
    • WO2017177887A1
    • 2017-10-19
    • PCT/CN2017/080040
    • 2017-04-11
    • TELEFONAKTIEBOLAGET LM ERICSSON (publ)MIAO, Qingyu
    • MIAO, QingyuZHU, HuaisongWANG, Jianfeng
    • H04L5/00
    • Embodiments of the present disclosure provide methods, apparatuses and computer program for facilitating reference signal transmission. An example method can be implemented at a base station in a wireless communication system for communicating with a terminal device. The terminal device is configured with a primary carrier and a secondary carrier for carrier aggregation. The method comprises determining a measurement gap. The measurement gap indicates a time interval for a terminal device to switch from the primary carrier to the secondary carrier for transmitting a reference signal to the base station over the secondary carrier and switch back to the primary carrier. The method also comprises triggering the terminal device to transmit the reference signal over the secondary carrier according to the measurement gap and obtaining a channel estimation based on the reference signal received from the terminal device during the measurement gap. By virtue of the method, the base station is enabled to request and control reference signal transmission on a secondary carrier from the terminal device, thereby obtaining CSI of the secondary carrier. Furthermore, since transmission of the reference signal is restricted to the measurement gap known by the base station, negative impact to the primary carrier can be minimized.
    • 本公开的实施例提供了用于促进参考信号传输的方法,设备和计算机程序。 可以在无线通信系统中的基站处实现用于与终端设备进行通信的示例方法。 终端设备配置有用于载波聚合的主载波和副载波。 该方法包括确定测量间隙。 测量间隙表示终端设备从主载波切换到次载波的时间间隔,用于通过次载波向基站发送参考信号并切换回主载波。 该方法还包括触发终端设备根据测量间隙在辅载波上发送参考信号,并基于在测量间隙期间从终端设备接收的参考信号获得信道估计。 借助于该方法,基站能够从终端设备请求和控制辅载波上的参考信号传输,从而获得辅载波的CSI。 此外,由于参考信号的传输限于基站已知的测量间隙,因此可以将对主载波的负面影响最小化。
    • 7. 发明申请
    • METHOD AND DEVICE FOR BEAM FORMING
    • 用于波束成形的方法和设备
    • WO2018068265A1
    • 2018-04-19
    • PCT/CN2016/102009
    • 2016-10-13
    • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)LI, Ming
    • LI, MingWANG, Jianfeng
    • H01Q3/00
    • Embodiments of the present disclosure relate to a method and device for beam forming. In example embodiments, a plurality of signals are obtained from a plurality of receiving antennas. The plurality of signals are grouped into a first set of signals and a second set of signals. An automatic gain control (AGC) is disabled for each signal in the first set of signals, and the AGC has been enabled for each signal in the second set of signals. Then, for beam forming associated with the plurality of receiving antennas, beam weights are determined by applying a first set of signal weights to the first set of signals and applying a second set of signal weights to the second set of signal weights. The first set of signal weights are greater than the second set of signal weights. In this way, negative effects due to the AGC processing may be mitigated in the beam forming.
    • 本公开的实施例涉及一种用于波束成形的方法和设备。 在示例实施例中,从多个接收天线获得多个信号。 多个信号被分组为第一组信号和第二组信号。 对第一组信号中的每个信号禁用自动增益控制(AGC),并且对第二组信号中的每个信号启用AGC。 然后,对于与多个接收天线相关联的波束成形,通过将第一组信号权重应用于第一组信号并将第二组信号权重应用于第二组信号权重来确定波束权重。 第一组信号权重大于第二组信号权重。 通过这种方式,可以在波束形成中减轻由AGC处理引起的负面影响。
    • 9. 发明申请
    • TRANSMISSION OF SYSTEM INFORMATION
    • 系统信息的传输
    • WO2017181401A1
    • 2017-10-26
    • PCT/CN2016/079987
    • 2016-04-22
    • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)WANG, Jianfeng
    • WANG, JianfengLIU, JinhuaZHENG, Yanli
    • H04W72/04
    • H04L27/2662H04L5/0007H04L5/0053H04L5/0094H04L27/2692H04W48/12
    • The embodiments disclose a method for a wireless node, which comprises determining a transmission block, according to a payload of the system information, determining one or more reference sequences from a predefined sequence set according to the transmission block, the one or more reference sequences indicating time and frequency resource grid of the determined transmission block and transmitting the system information and the one or more reference sequences in the determined transmission block. The embodiments also disclose a method for a communication device, which comprises detecting at least one set of one or more reference sequences, each set of the one or more reference sequences from a predefined sequence set indicating time and frequency resource grid of a transmission block for system information; determining at least one transmission block for the system information according to the detected at least one set of the one or more reference sequences; and decoding the system information in the determined at least one transmission block. The wireless node and communication devices thereof are also presented.
    • 实施例公开了一种用于无线节点的方法,该方法包括根据系统信息的有效载荷确定传输块,根据传输块从预定义的序列集中确定一个或多个参考序列 所述一个或多个参考序列指示所确定的传输块的时间和频率资源网格,并且在所确定的传输块中传输所述系统信息和所述一个或多个参考序列。 这些实施例还公开了一种用于通信设备的方法,该方法包括检测来自指示传输块的时间和频率资源网格的预定义序列集的一个或多个参考序列的至少一个集合, 系统信息; 根据检测到的至少一组一个或多个参考序列确定系统信息的至少一个传输块; 以及在所确定的至少一个传输块中解码系统信息。 还介绍了无线节点及其通信设备。