公开(公告)号：KR1020110045591A

公开(公告)日：2011-05-04

申请号：KR1020090102230

申请日：2009-10-27

Applicant: 한국전자통신연구원

Inventor： 이영석 ,  이동수 ,  유학 ,  김근용 ,  김성창 ,  이문섭

IPC: H04W8/24 ,  H04W4/06

CPC classification number: G06F8/65 ,  H04L41/082 ,  H04L67/34 ,  H04Q11/0067 ,  H04Q2011/0079

Abstract: PURPOSE: A method and apparatus for updating a terminal software in a network system are provided to rapidly update a terminal software between a communication server and plural terminals. CONSTITUTION: A message generating unit(710) generates at least one of a message for indicating the last portion of an image, a software activation request message and a software update termination message. The software activation request message is for applying an image of the terminal software transferred from the plural terminals. The software update termination message includes the update termination for the plural terminal, and a transfer window size determination unit(730) determines the size of the transmission window transferred from the plural terminals.

Abstract translation: 目的：提供一种用于更新网络系统中终端软件的方法和装置，用于快速更新通信服务器和多个终端之间的终端软件。 构成：消息生成单元（710）生成用于指示图像的最后部分的消息，软件激活请求消息和软件更新终止消息中的至少一个。 软件激活请求消息用于应用从多个终端传送的终端软件的图像。 软件更新终止消息包括多个终端的更新终止，并且传送窗口大小确定单元（730）确定从多个终端传送的传输窗口的大小。

公开(公告)号：KR100792601B1

公开(公告)日：2008-01-09

申请号：KR1020060124281

申请日：2006-12-08

Applicant: 한국전자통신연구원

Inventor： 이동수 ,  윤빈영 ,  김성창 ,  김근용 ,  김봉태

IPC: H04B10/25 ,  H04B10/27 ,  H04B10/00

CPC classification number: H04Q11/0067 ,  H04N7/22 ,  H04Q11/0005 ,  H04Q2011/0064

Abstract: An OLT(Optical Line Terminal) system in a PON(Passive Optical Network) for CBMS(Convergence of Broadcasting and Mobile Service) is provided to avoid a distortion of broadcast signals, due to a transmission delay and a loss of broadcast packets, by limiting the bandwidth of communication signals in order to guarantee the transmission bandwidth of broadcast signals. An OLT system in a PON for CBMS comprises a band monitoring part(601), a band limiting part(603), a multiplexing part(605), a switch(607), MAC processing parts(609-1-609-n), and optical transceivers(611-1-611-n). The band monitoring part(601) monitors the data packet band of a broadcast signal delivered from a core network or a metro network. The band limiting part(603) limits the band of a communication signal delivered from the core network or the metro network. The multiplexing part(605) multiplexes the monitored broadcast signal and the band-limited communication signal. The switch(607) switches the multiplexed signal packets to switch ports corresponding to PON links. The MAC processing parts(609-1-609-n) process the multiplexed signal packets, switched and transmitted through the switch(607), using an OLT MAC function. The optical transceivers convert the multiplexed signal packets, processed by the MAC processing parts, into optical signals and transmit them to associated PON links.

Abstract translation: 提供用于CBMS（广播和移动业务的融合）的PON（无源光网络）中的OLT（光线路终端）系统，以通过限制广播信号的传输延迟和广播分组的丢失来避免广播信号的失真 通信信号的带宽为了保证广播信号的传输带宽。 用于CBMS的PON中的OLT系统包括频带监视部分（601），频带限制部分（603），复用部分（605），交换机（607），MAC处理部分（609-1-609-n） ，和光收发器（611-1-611-n）。 频带监视部分（601）监视从核心网或城域网传送的广播信号的数据包频带。 频带限制部分（603）限制从核心网或城域网传送的通信信号的频带。 复用部分（605）复用监视的广播信号和带限通信信号。 开关（607）将复用的信号分组切换到对应于PON链路的交换机端口。 MAC处理部（609-1-609-n）使用OLT MAC功能处理通过交换机（607）切换并发送的复用信号分组。 光收发器将由MAC处理部分处理的多路复用信号分组转换为光信号，并将其发送到相关联的PON链路。