发明授权
- 专利标题： Optical communication system using WDMA and CDMA
- 专利标题（中）： 使用WDMA和CDMA的光通信系统
-
申请号： US11858566申请日： 2007-09-20
-
公开(公告)号： US07676127B2公开(公告)日： 2010-03-09
- 发明人: Masahiko Mizutani , Toshiki Sugawara , Tohru Kazawa , Yoshihiro Ashi
- 申请人： Masahiko Mizutani , Toshiki Sugawara , Tohru Kazawa , Yoshihiro Ashi
- 申请人地址： JP Tokyo
- 专利权人： Hitachi Communication Technologies, Ltd.
- 当前专利权人： Hitachi Communication Technologies, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Mattingly & Malur, P.C.
- 优先权： JP2007-151846 20070607
- 主分类号： G02B6/28
- IPC分类号： G02B6/28
摘要：
In a PON system, an OLT periodically transmits a channel resource information block specifying a carrier wavelength and a spreading code on a first downstream channel to which a spread-spectrum spreader having a first spreading code is applied; one of ONUs receives the channel resource information block with a spread-spectrum despreader having the first spreading code and transmits a connection request to the OLT, using the carrier wavelength and the spreading code specified by the channel resource information block; the OLT having received the connection request transmits a new channel resource information block specifying a carrier wavelength and a spreading code to be used on an upstream data channel to the requester ONU through the first channel; and the requester ONU transmits data, using the carrier wavelength and the spreading code specified by the new channel resource information block.
公开/授权文献
- US20080304828A1 OPTICAL COMMUNICATION SYSTEM USING WDMA AND CDMA 公开/授权日：2008-12-11
信息查询
