公开(公告)号：US20140334328A1

公开(公告)日：2014-11-13

申请号：US14338246

申请日：2014-07-22

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Hui TONG ,  Ming XU ,  Masayuki HOSHINO ,  Daichi IMAMURA

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0639 ,  H04L5/0051 ,  H04L5/0055 ,  H04L5/0057 ,  H04W16/14 ,  H04W72/04 ,  H04W72/0453 ,  H04W72/046 ,  H04W72/0473 ,  H04W72/082 ,  H04W72/085 ,  Y02D70/1262 ,  Y02D70/146

Abstract: A method and a system of setting up a reference signal in a radio communication system are disclosed. The radio communication system includes a serving cell and a neighboring cell, and a mobile terminal of the serving cell uses the same temporal frequency resource to receive a serving resource block from the serving cell and an interference resource block from the neighboring cell. The method includes setting up a user-specific reference signal in the interference resource block and puncturing at the same temporal frequency position as the temporal frequency position at which the user-specific reference signal is set up on the interference resource block of the serving resource block to prevent any signal from being transmitted at the punctured temporal frequency position. When the method and the system are used and the interference power between cells is measured, it is possible to effectively reduce feedback overhead in a coordinated beamforming.

Abstract translation: 公开了一种在无线电通信系统中建立参考信号的方法和系统。 无线电通信系统包括服务小区和相邻小区，并且服务小区的移动终端使用相同的时间频率资源从服务小区接收服务资源块和来自相邻小区的干扰资源块。 该方法包括在干扰资源块中设置用户特定参考信号，并在与服务资源块的干扰资源块上建立用户特定参考信号的时间频率位置相同的时间频率位置进行删截 以防止在穿孔的时间频率位置发送任何信号。 当使用方法和系统并且测量小区之间的干扰功率时，可以有效地减少协调波束形成中的反馈开销。

公开(公告)号：US20140307823A1

公开(公告)日：2014-10-16

申请号：US14316634

申请日：2014-06-26

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Hui TONG ,  Masayuki HOSHINO ,  Ming XU ,  Seigo NAKAO ,  Daichi IMAMURA

IPC: H04B7/04

CPC classification number: H04B7/0478 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0469 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0641 ,  H04B7/0663 ,  H04B2001/3855 ,  H04B2001/3861 ,  H04L25/03904 ,  H04L25/03917 ,  H04W88/02 ,  H04W88/08

Abstract: The present disclosure provides a method of generating codebook in a wireless communication system with multiple antenna arrays, as well as a wireless communication system, base station and terminal using the codebook for communication. The method comprises steps of: providing a basic codebook which contains multiple pre-coding matrices; and assigning phase offsets to certain pre-coding matrices in the basic codebook to form a codebook with phase offset. The feedback overhead from a client to a base station side is reduced and a good precision of feedback for multi-antenna array is kept by applying the method of generating codebook and using the generated codebook in the wireless communication system, base station and terminal.

Abstract translation: 本公开提供了一种在具有多个天线阵列的无线通信系统中生成码本的方法，以及使用该通信码本的无线通信系统，基站和终端。 该方法包括以下步骤：提供包含多个预编码矩阵的基本码本; 并将相位偏移分配给基本码本中的某些预编码矩阵以形成具有相位偏移的码本。 降低了从客户端到基站侧的反馈开销，通过在无线通信系统，基站和终端中应用生成码本的方法和使用生成的码本来保持多天线阵列的反馈精度良好。