公开(公告)号：US20180076856A1

公开(公告)日：2018-03-15

申请号：US15564444

申请日：2016-04-07

Applicant: KYOCERA CORPORATION

Inventor： Fangwei TONG ,  Atsuhisa INAKOSHI ,  Kugo MORITA ,  Masato FUJISHIRO ,  Chiharu YAMAZAKI ,  Akinori IWABUCHI ,  Tohru SUNAGA

IPC: H04B7/0408 ,  H04B7/0456 ,  H04B7/06 ,  H04W72/04 ,  H04W16/28 ,  H04L5/00

CPC classification number: H04B7/0408 ,  H04B7/0456 ,  H04B7/0632 ,  H04B7/0695 ,  H04L5/0048 ,  H04L5/0057 ,  H04W16/28 ,  H04W72/0426 ,  H04W72/046

Abstract: A mobile communication system is a mobile communication system that performs communication between a base station and a user terminal. When a directivity is formed to transmit a radio signal, the base station transmits a first radio signal including identification information to identify the formed directivity and a reference signal. The user terminal receives the first radio signal and transmits a second radio signal including quality information when receiving the reference signal and the identification information. The base station receives the second radio signal and determines the directivity to be formed based on the identification information and the quality information.

公开(公告)号：US20150382392A1

公开(公告)日：2015-12-31

申请号：US14769061

申请日：2014-02-18

Applicant: KYOCERA CORPORATION

Inventor： Kugo MORITA ,  Akinori IWABUCHI ,  Tohru SUNAGA

IPC: H04W76/02 ,  H04W8/00 ,  H04W4/24 ,  H04W72/04

CPC classification number: H04W76/14 ,  H04W4/24 ,  H04W8/005 ,  H04W72/04 ,  H04W88/04 ,  H04W92/18

Abstract: A mobile communication system according to the embodiment supports cellular communication in which a data path passes through a network and D2D communication that is direct device-to-device communication in which a data path does not pass through the network. A frequency division multiplexing scheme is applied to the cellular communication and a code division multiplexing scheme is applied to the D2D communication. The network assigns a spread code having orthogonality to a user terminal in response to a request from the user terminal. The user terminal performs the D2D communication by using the spread code assigned by the network.

Abstract translation: 根据本实施例的移动通信系统支持数据路径通过网络的蜂窝通信，以及数据路径不通过网络的直接设备到设备通信的D2D通信。 将频分复用方案应用于蜂窝通信，并将码分多路复用方案应用于D2D通信。 响应于来自用户终端的请求，网络向用户终端分配具有正交性的扩频码。 用户终端通过使用由网络分配的扩展码来执行D2D通信。