公开(公告)号：US20130076566A1

公开(公告)日：2013-03-28

申请号：US13685426

申请日：2012-11-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Jiang ,  Xuezhi Yang

IPC: H01Q3/40

CPC classification number: H01Q3/40 ,  H01Q1/246 ,  H01Q3/26 ,  H01Q25/00 ,  H04B7/0617 ,  H04B7/0671

Abstract: The present invention provides a method and an apparatus for transmitting a broadcast signal. The method includes: performing dividing processing on an antenna array in a multi-antenna system to obtain multiple subarrays; obtaining a basic weight vector of each subarray among the multiple subarrays, where the basic weight vector makes a beam peak-to-average power ratio of each subarray lower than a preset threshold and makes beam patterns of different subarrays complementary to each other in a direction dimension; performing, according to a weight coefficient in each basic weight vector, weighted processing on a transmit signal of an array element in a subarray corresponding to the each basic weight vector to obtain a first signal and use the array element to transmit the first signal. The present invention implements full coverage of the broadcast signal from the multi-antenna system in all directions in a cell or a sector.

Abstract translation: 本发明提供一种用于发送广播信号的方法和装置。 该方法包括：对多天线系统中的天线阵列执行划分处理以获得多个子阵列; 获得所述多个子阵列中的每个子阵列的基本权重向量，其中所述基本权重向量使每个子阵列的波束峰值与平均功率比低于预设阈值，并且使得不同子阵列的波束图案在方向上彼此互补 尺寸; 根据每个基本权重向量中的权重系数对与每个基本权重向量相对应的子阵列中的数组元素的发送信号进行加权处理，以获得第一信号，并使用数组元素发送第一信号。 本发明在小区或扇区中实现来自多天线系统的广播信号在所有方向上的全面覆盖。