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    • 1. 发明申请
    • METHOD AND DEVICE FOR CONTROLLING PROPAGATION DELAY IN A COMP TRANSMISSION SYSTEM
    • 用于控制传输系统中传播延迟的方法和设备
    • US20120014312A1
    • 2012-01-19
    • US13257110
    • 2010-03-17
    • Xiaobo ZhangMingli You
    • Xiaobo ZhangMingli You
    • H04W4/06
    • H04W56/00
    • The present invention proposed a method and a device for controlling propagation delay in a base station of a wireless communication system based on COMP transmission. To be specific, w hen sending downlink data to a mobile station, the base station processes part of data of one or more other unsynchronized base stations and sends the processed part of data to the mobile station at one or more specific time slots simultaneously. By applying the solution of the present invention, because data, corresponding to the length of the out-of-synchronization information, of an unsynchronized base station is sent to the mobile station at a specific time slot by a synchronized base station or other unsynchronized base stations, DL data that is sent to the mobile station by the unsynchronized base station all falls within the detection window of the mobile station, such that the resulted problem of the decreased performance of a receiver due to the propagation delay is solved.
    • 本发明提出了一种用于控制基于COMP传输的无线通信系统的基站中的传播延迟的方法和装置。 具体地说,在向移动台发送下行链路数据的情况下,基站处理一个以上的其他非同步基站的数据的一部分,同时在一个或多个特定的时隙将数据的处理部分发送到移动台。 通过应用本发明的解决方案,由于同步基站的不同步信息的长度对应的数据在特定的时隙被同步的基站或其它非同步的基站发送到移动台 由不同步的基站发送到移动台的DL数据都落在移动台的检测窗口内,从而解决了由于传播延迟导致的接收机性能下降的问题。
    • 2. 发明授权
    • Method of maintaining coherency of a precoding channel in a communication network and associated apparatus
    • 维护通信网络和相关设备中的预编码信道的一致性的方法
    • US08948297B2
    • 2015-02-03
    • US13390586
    • 2009-08-17
    • Xiaobo ZhangMingli You
    • Xiaobo ZhangMingli You
    • H04L25/49H04B7/04H04B17/00H04L25/02H04B7/06
    • H04B7/0456H04B7/0626H04B17/24H04L25/0222
    • In prior art, selection of precoding granularity is affected by two inter-restricting factors, i.e., precoding accuracy and channel estimation at a mobile terminal. To solve this problem, the present invention provides a method of maintaining coherency of a precoding channel in a communication network and an associated apparatus. During precoding, this method takes into account both channel coherency and system capacity. A base station adjusts phase and/or amplitude of a precoding matrix corresponding to each precoded unit to maintain coherency of associated information of the overall precoding channel. The associated information of the precoding channel includes, for example, CSI or eigenvalue matrix of the precoding channel. Afterwards, a mobile terminal performs channel estimation based on reference signals of multiple precoded units, thereby eliminating the limitation in prior art that a mobile terminal can perform channel estimation only within one or more resource block limited by a precoding granularity.
    • 在现有技术中,预编码粒度的选择受到两个限制因素的影响,即移动终端的预编码精度和信道估计。 为了解决这个问题,本发明提供一种保持通信网络和相关设备中的预编码信道一致性的方法。 在预编码期间,该方法考虑了信道一致性和系统容量。 基站调整与每个预编码单元相对应的预编码矩阵的相位和/或幅度,以维持整个预编码信道的相关信息的一致性。 预编码信道的相关信息包括例如预编码信道的CSI或特征值矩阵。 之后,移动终端基于多个预编码单元的参考信号进行信道估计,从​​而消除了现有技术中移动终端只能在由预编码粒度限制的一个或多个资源块内执行信道估计的限制。
    • 5. 发明申请
    • METHOD OF MAINTAINING COHERENCY OF A PRECODING CHANNEL IN A COMMUNICATION NETWORK AND ASSOCIATED APPARATUS
    • 在通信网络和相关设备中维护预编码信道的相似性的方法
    • US20120140851A1
    • 2012-06-07
    • US13390586
    • 2009-08-17
    • Xiaobo ZhangMingli You
    • Xiaobo ZhangMingli You
    • H04L27/00
    • H04B7/0456H04B7/0626H04B17/24H04L25/0222
    • In prior art, selection of precoding granularity is affected by two inter-restricting factors, i.e., precoding accuracy and channel estimation at a mobile terminal. To solve this problem, the present invention provides a method of maintaining coherency of a precoding channel in a communication network and an associated apparatus. During precoding, this method takes into account both channel coherency and system capacity. A base station adjusts phase and/or amplitude of a precoding matrix corresponding to each precoded unit to maintain coherency of associated information of the overall precoding channel. The associated information of the precoding channel includes, for example, CSI or eigenvalue matrix of the precoding channel. Afterwards, a mobile terminal performs channel estimation based on reference signals of multiple precoded units, thereby eliminating the limitation in prior art that a mobile terminal can perform channel estimation only within one or more resource block limited by a precoding granularity.
    • 在现有技术中,预编码粒度的选择受到两个限制因素的影响,即移动终端的预编码精度和信道估计。 为了解决这个问题,本发明提供一种保持通信网络和相关设备中的预编码信道一致性的方法。 在预编码期间,该方法考虑了信道一致性和系统容量。 基站调整与每个预编码单元相对应的预编码矩阵的相位和/或幅度,以维持整个预编码信道的相关信息的一致性。 预编码信道的相关信息包括例如预编码信道的CSI或特征值矩阵。 之后,移动终端基于多个预编码单元的参考信号进行信道估计,从​​而消除了现有技术中移动终端只能在由预编码粒度限制的一个或多个资源块内执行信道估计的限制。
    • 8. 发明授权
    • Communication method and apparatus for controlling data transmission and retransmission of mobile station at base station
    • 用于控制基站移动台数据传输和重传的通信方法和装置
    • US08897233B2
    • 2014-11-25
    • US12672616
    • 2007-08-10
    • Tao YangMingli You
    • Tao YangMingli You
    • H04W4/00H04L1/00H04L1/16
    • H04L1/1887H04L1/0025H04L1/0079H04L1/1607H04L5/0055H04W72/0413
    • Disclosed is a communication method for controlling data transmission of a mobile station at a base station. The method comprises the steps of: determining, by the base station, a transmission operation to be performed by the mobile station in next transmission time interval based on HARQ and schedule result; sending, in a downlink by the base station, an ACK/NACK packet, an indicator indicating the type of the transmission by the mobile station and a resource use command for the used resource based on the determined transmission operation; receiving, by the mobile station, the ACK/NACK packet, the indicator and the resource use command sent from the base station, and performing respective transmission operations according to the received ACK/NACK packet, indicator and resource use command without using any data-associated signaling in an uplink.
    • 公开了一种用于控制移动台在基站的数据传输的通信方法。 该方法包括以下步骤:由基站根据HARQ和调度结果确定移动台在下一个传输时间间隔内执行的传输操作; 在基站的下行链路中,基于所确定的发送操作,在所述基站的下行链路中发送ACK / NACK分组,指示所述移动台的发送的类型的指示符和所述使用的资源的资源使用命令; 由移动台接收从基站发送的ACK / NACK分组,指示符和资源使用命令,并且根据接收的ACK / NACK分组,指示符和资源使用命令执行各个传输操作,而不使用任何数据 - 相关联的信令在上行链路中。
    • 9. 发明授权
    • Methods and apparatuses for multi-cell collaborative communication in a multiple input multiple output system
    • 多输入多输出系统中多小区协同通信的方法和装置
    • US08811316B2
    • 2014-08-19
    • US13257215
    • 2010-03-16
    • Fanglei SunMingli YouJin LiuYan Zhao
    • Fanglei SunMingli YouJin LiuYan Zhao
    • H04W4/00
    • H04B7/024
    • A method and device for multiple-cell collaborative communication in a multiple input multiple output (MIMO) system are disclosed by the present invention. In said method, base stations participating in multiple-cell collaborative MIMO communication perform precoding and scheduling one by one. At first, a first base station selects the mobile terminals participating in the collaborative communication and performs transmission setting, including pre-coding setting; then the scheduling and setting results of the first base station are kept invariant, so that a second base station selects the mobile terminals participating in the collaborative communication and performs transmission setting, including pre-coding setting, according to the scheduling and setting results of the first base station. If a third base station participates in the multiple-cell collaborative MIMO communication, the scheduling and setting results of the first and second base stations are kept invariant, so that the third base station selects the mobile terminals participating in the collaborative communication and performs transmission setting, including pre-coding setting, according to the scheduling and setting results of the first and second base stations. Based on the gradual collaborative communication method, fully distributed multiple-cell collaborative MIMO communication can be achieved.
    • 本发明公开了一种用于多输入多输出(MIMO)系统中的多小区协作通信的方法和装置。 在所述方法中,参与多小区协作MIMO通信的基站逐一进行预编码和调度。 首先,第一基站选择参与协作通信的移动终端,并执行包括预编码设置的传输设置; 那么第一基站的调度和设置结果保持不变,使得第二基站选择参与协作通信的移动终端,并根据调度和调度结果进行包括预编码设置的传输设置 第一基站。 如果第三基站参与多小区协作MIMO通信,则第一和第二基站的调度和设置结果保持不变,使得第三基站选择参与协作通信的移动终端并执行传输设置 ,包括预编码设置,根据第一和第二基站的调度和设置结果。 基于逐步的协同通信方式,可以实现全分布式多小区协同MIMO通信。
    • 10. 发明申请
    • TRANSMITTER WITH MULTIPLE ANTENNAS AND DATA TRANSMISSION METHOD IN THE TRANSMITTER WITH MULTIPLE ANTENNAS
    • 具有多个天线的发射机的发射机和数据传输方法
    • US20120069807A1
    • 2012-03-22
    • US13266298
    • 2009-04-28
    • Yan MengMingli YouJin Liu
    • Yan MengMingli YouJin Liu
    • H04W72/04
    • H04B7/06H04B7/0697H04L5/0023H04L5/0044H04L27/2636
    • According to one aspect of the present invention, a multi-antenna transmitter is provided. The transmitter includes: a data block acquiring device for acquiring multiple data streams, wherein each data stream includes data blocks at multiple slots; and a grouping and mapping device for grouping and mapping each data block, wherein the data blocks at the same slot in each data stream are grouped according to the number of the antennas and each group is mapped to one of the antennas respectively, and the different data blocks in the same group are mapped to different sub-bands respectively; and wherein grouping and mapping manners which are not exactly the same are adopted for the data blocks at different slots, and the grouping and mapping manners include data block grouping manners, group-to-antenna mapping manners, and sub-band mapping manners. And the groups of data blocks at the multiple slots are transmitted via the antennas. With the technical solutions of the present invention, a reduced PAPR during data transmission can be achieved while the diversity gain is guaranteed.
    • 根据本发明的一个方面,提供一种多天线发射机。 发射机包括:数据块获取装置,用于获取多个数据流,其中每个数据流包括多个时隙的数据块; 以及用于对每个数据块进行分组和映射的分组和映射设备,其中每个数据流中相同时隙处的数据块根据天线的数量被分组,并且每个组分别映射到天线之一,并且不同的天线 同一组中的数据块分别映射到不同子带; 并且其中对于不同时隙的数据块采用不完全相同的分组和映射方式,并且分组和映射方式包括数据块分组方式,组到天线映射方式和子带映射方式。 并且通过天线发送多个时隙的数据块组。 利用本发明的技术方案,可以在保证分集增益的同时实现数据传输期间的PAPR减小。