公开(公告)号：US10231267B2

公开(公告)日：2019-03-12

申请号：US15784310

申请日：2017-10-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kye Seon Lee ,  Tae Joon Park ,  Byeong Cheol Choi ,  Wun Cheol Jeong

IPC: H04W4/00 ,  H04W76/10 ,  H04W72/04 ,  H04W28/02 ,  H04W88/16

Abstract: An operation method of a server in a communication network includes receiving a connection request message from each of a plurality of gateways connected to the server; identifying a service level of a terminal that has transmitted the connection request message based on information included in the connection request message; selecting a first gateway corresponding to the service level among the plurality of gateways as a gateway to which the terminal is to be connected; and transmitting a connection approval message, which is a response to the connection request message, to the terminal through the first gateway.

公开(公告)号：US09300433B2

公开(公告)日：2016-03-29

申请号：US14056359

申请日：2013-10-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Tae Joon Park ,  Hoyong Kang ,  Wun-Cheol Jeong ,  Chang Sub Shin ,  In Hwan Lee ,  Cheol Sig Pyo

IPC: H04J13/00 ,  H04L1/00

CPC classification number: H04L1/004 ,  H04L1/0071

Abstract: A method and apparatus for encoding a constant amplitude that is applied to a code division multiplexing communication system are provided. By dividing a data bit into a block unit, the receiving side can easily determine an error, and by reducing power consumption in outdoor wide area communication using a bit string of a small length in a basic unit of an input frame, efficiency can be improved, and thus a physical layer of a ubiquitous sensor network can be optimized.

Abstract translation: 提供了一种用于对应用于码分复用通信系统的恒定幅度进行编码的方法和装置。 通过将数据位分割为块单位，接收侧可以容易地确定错误，并且通过使用输入帧的基本单位中的小长度的位串减少户外广域通信中的功耗，可以提高效率 ，因此可以优化普遍存在的传感器网络的物理层。