公开(公告)号：US20140010197A1

公开(公告)日：2014-01-09

申请号：US14022841

申请日：2013-09-10

Applicant: FUJITSU LIMITED

Inventor： Yi WANG ,  Timothy J. MOULSLEY ,  Yi ZHANG ,  Hua ZHOU

IPC: H04L5/00

CPC classification number: H04L5/0032 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/0617 ,  H04J11/0033 ,  H04J11/0056 ,  H04L25/03904 ,  H04W24/02 ,  H04W52/0216 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/444

Abstract: A method of interference coordination, base station and user equipment. The method comprises: precoding by a macro cell eNB the signals of the downlink control channel of scheduled macro cell UE by using pre-obtained precoded matrixes, such that the signal null space formed by precoding is pointed to pico cells and/or the characteristic value space of the signals is pointed to the macro cell UE. With such a method, almost all the interference caused by the PDCCH of the macro cell to the pico cell is eliminated, and the performances of the macro cell are not affected, solving the problem existed in the prior art; or improving the receiving performance of the macro cell UE, and further alleviating the interference of the macro cell on the pico cells.

Abstract translation: 干扰协调，基站和用户设备的方法。 该方法包括：通过使用预先获得的预编码矩阵，由宏小区eNB预编码调度的宏小区UE的下行链路控制信道的信号，使得由预编码形成的信号零空间指向微微小区和/或特征值 信号的空间指向宏小区UE。 利用这种方法，消除了由宏小区的PDCCH到微微小区的几乎所有干扰，并且宏小区的性能不受影响，解决了现有技术中存在的问题; 或提高宏小区UE的接收性能，进一步减轻宏小区对微微小区的干扰。

公开(公告)号：US20180131472A1

公开(公告)日：2018-05-10

申请号：US15862681

申请日：2018-01-05

Applicant: FUJITSU LIMITED

Inventor： Wei XI ,  Hua ZHOU ,  Timothy J. MOULSLEY

IPC: H04L1/18 ,  H04L5/00 ,  H04L25/03 ,  H04W72/04

CPC classification number: H04L1/18 ,  H04L1/0003 ,  H04L5/0053 ,  H04L5/023 ,  H04L25/03006 ,  H04W72/042 ,  H04W72/12

Abstract: Embodiments of this disclosure provide a method and apparatus for performing multiuser superposition transmission over repetition-based transmission and a system. In this embodiment, the method includes: an eNB transmits repetition configuration information or repetition configuration information and modulation scheme information of second UE utilizing a repetition-based transmission technique to first UE paired with the second UE for performing MUST transmission, so that the first UE detects data of the second UE and performs interference cancellation according to the repetition configuration information or the repetition configuration information and the modulation scheme information of the second UE, so as to obtain data of the first UE. With the embodiments of this disclosure, unnecessary signaling overhead and repeated detection may be avoided, thereby improving performance and efficiency of MUST transmission.