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公开(公告)号：US09219575B2
公开(公告)日：2015-12-22
申请号：US14272870
申请日：2014-05-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Meng Hua , Zongjie Wang , Carmela Cozzo , Xiaolei Tie , Shurong Jiao , Shuju Fan , Gengshi Wu
CPC classification number: H04B1/7097 , H04B7/0413 , H04B7/0417 , H04B2201/709709 , H04L1/0026 , H04L1/0029 , H04L1/0071 , H04L1/06
Abstract: A method for transmitting data streams in a multiple input multiple output (MIMO) system is provided, where each data stream is mapped to multiple layers in an MIMO channel space for transmission, and the method includes: performing inter-layer interleaving for N data streams to obtain N interleaved data streams; mapping the N interleaved data streams respectively to N layers in the MIMO channel space, and transmitting the N interleaved data streams that are mapped to the N layers. By using the method of the present invention, a combined CQI can be used in a better way to improve MIMO transmission performance. Further, an impact of inter-layer interference is canceled by using an interference cancellation technology (for example, an SIC technology) based on the inter-layer interleaving.
Abstract translation: 提供了一种在多输入多输出（MIMO）系统中发送数据流的方法，其中每个数据流被映射到MIMO信道空间中的多个层以用于传输，并且该方法包括：对N个数据流进行层间交织 获得N个交错数据流; 将N个交错数据流分别映射到MIMO信道空间中的N个层，以及发送映射到N个层的N个交织数据流。 通过使用本发明的方法，可以以更好的方式使用组合的CQI来改善MIMO传输性能。 此外，通过使用基于层间交织的干扰消除技术（例如，SIC技术）来消除层间干扰的影响。
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公开(公告)号：US20150155976A1
公开(公告)日：2015-06-04
申请号：US14611979
申请日：2015-02-02
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04L1/1893 , H04B7/0417 , H04B7/0623 , H04L1/06 , H04L1/08 , H04L1/16 , H04L1/1671 , H04L1/1816 , H04L1/1819 , H04L1/1861 , H04L1/1867 , H04L1/1896
Abstract: The present invention discloses a data retransmission method, apparatus, and system, and relates to the field of communications. In a data retransmission method, a special codeword is determined according to a difference between a number of layers selected by a transmitter and the number of layers that need to be occupied for retransmitting a codeword. The number of layers that need to be occupied by the codeword to be retransmitted is smaller than the number of layers selected by the transmitter and no new data needs to be transmitted and wherein the number of transport blocks comprised in the special codeword is equal to the difference. The codeword that needs to be retransmitted and the special codeword are allocated to each transport layer through a layer mapping.
Abstract translation: 本发明公开了一种数据重传方法，装置和系统，涉及通信领域。 在数据重传方法中，根据由发射机选择的多个层与需要被占用以重传码字的层数之间的差异来确定特殊码字。 要被重传的码字需要占用的层的数量小于由发射机选择的层的数量，并且不需要发送新的数据，并且其中包含在特殊码字中的传输块的数量等于 区别。 需要重传的码字和通过层映射将特殊码字分配给每个传输层。
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23.发明申请PILOT SIGNAL TRANSMITTING METHOD, AND CHANNEL ESTIMATION METHOD, APPARATUS, AND SYSTEM 有权试点信号传输方法和信道估计方法，装置和系统公开(公告)号：US20150063493A1
公开(公告)日：2015-03-05
申请号：US14536341
申请日：2014-11-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaolei Tie , Xueli Ma , Meng Hua , Shuju Fan
CPC classification number: H04L27/2626 , H04B1/0483 , H04B7/0413 , H04B7/0667 , H04B7/0684 , H04L1/0643 , H04L5/0025 , H04L5/0048 , H04L25/0204 , H04L25/0226 , Y02D70/1242 , Y02D70/444
Abstract: Embodiments of the present invention disclose a pilot signal transmitting method, and a channel estimation method, an apparatus, and a system. The method includes: within a transmission time interval (TTI), transmitting a first pilot signal (CPICH1) on a first antenna, and transmitting a second pilot signal (CPICH2) on a second antenna; when no first-type terminal is scheduled within coverage of a MIMO system within the TTI, transmitting a third pilot signal (CPICH3) on a third antenna, and transmitting a fourth pilot signal (CPICH4) on a fourth antenna; and when a first-type terminal is scheduled within the coverage of the MIMO system within the TTI, transmitting the CPICH3 and a fifth pilot signal (CPICH5) on the third antenna, and transmitting the CPICH4 and a sixth pilot signal (CPICH6) on the fourth antenna. By using the method, interference of a pilot signal to a legacy terminal can be greatly reduced.
Abstract translation: 本发明的实施例公开了一种导频信号发送方法，信道估计方法，装置和系统。 该方法包括：在传输时间间隔（TTI）内传输第一天线上的第一导频信号（CPICH1），并在第二天线上发送第二导频信号（CPICH2）; 当在TTI内的MIMO系统的覆盖范围内没有调度第一类型终端时，在第三天线上发送第三导频信号（CPICH3），并在第四天线上发送第四导频信号（CPICH4）; 并且当在TTI内的MIMO系统的覆盖范围内调度第一类型终端时，在第三天线上发送CPICH3和第五导频信号（CPICH5），并在第三天线上发送CPICH4和第六导频信号（CPICH6） 第四天线。 通过使用该方法，可以大大减少导频信号对传统终端的干扰。
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公开(公告)号：US20140341320A1
公开(公告)日：2014-11-20
申请号：US14272870
申请日：2014-05-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Meng Hua , Zongjie Wang , Carmela Cozzo , Xiaolei Tie , Shurong Jiao , Shuju Fan , Gengshi Wu
CPC classification number: H04B1/7097 , H04B7/0413 , H04B7/0417 , H04B2201/709709 , H04L1/0026 , H04L1/0029 , H04L1/0071 , H04L1/06
Abstract: A method for transmitting data streams in a multiple input multiple output (MIMO) system is provided, where each data stream is mapped to multiple layers in an MIMO channel space for transmission, and the method includes: performing inter-layer interleaving for N data streams to obtain N interleaved data streams; mapping the N interleaved data streams respectively to N layers in the MIMO channel space, and transmitting the N interleaved data streams that are mapped to the N layers. By using the method of the present invention, a combined CQI can be used in a better way to improve MIMO transmission performance. Further, an impact of inter-layer interference is canceled by using an interference cancellation technology (for example, an SIC technology) based on the inter-layer interleaving.
Abstract translation: 提供一种在多输入多输出（MIMO）系统中传输数据流的方法，其中每个数据流被映射到MIMO信道空间中的多个层以用于传输，并且该方法包括：对N个数据流进行层间交织 获得N个交错数据流; 将N个交错数据流分别映射到MIMO信道空间中的N个层，以及发送映射到N个层的N个交织数据流。 通过使用本发明的方法，可以以更好的方式使用组合的CQI来改善MIMO传输性能。 此外，通过使用基于层间交织的干扰消除技术（例如，SIC技术）来消除层间干扰的影响。
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