Title:
RELAY DEVICE, STATION SIDE OPTICAL COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND BANDWIDTH ALLOCATION METHOD
Document Type and Number:
WIPO Patent Application WO/2012/090274
Kind Code:
A1
Abstract:
An OCU (6) which relays communication between an ONU performing upstream 1G transmission and an OLT, and between an ONU performing upstream 10G transmission and an OLT, wherein the OCU (6) is provided with: an upstream 1G (Rx) (18) which converts optical signals received from the ONU performing upstream 1G transmission to electric signals; a buffer (19) which buffers the electric signals; and an upstream 10G (Tx) (20) which transmits, to the OLT, a bandwidth allocation request requesting bandwidth allocation for communication from the OCU itself to the OLT, and within the transmission grant time period allocated by the OLT, reads the electric signals stored in the buffer (19) converts the electric signals to optical signals having a communication speed of 10G, and performs transmission.
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Inventors:
MIZUGUCHI JUN (JP)
HOTTA YOSHIFUMI (JP)
SUGIMURA KOSHI (JP)
HOTTA YOSHIFUMI (JP)
SUGIMURA KOSHI (JP)
Application Number:
PCT/JP2010/073576
Publication Date:
July 05, 2012
Filing Date:
December 27, 2010
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
MIZUGUCHI JUN (JP)
HOTTA YOSHIFUMI (JP)
SUGIMURA KOSHI (JP)
MIZUGUCHI JUN (JP)
HOTTA YOSHIFUMI (JP)
SUGIMURA KOSHI (JP)
International Classes:
H04J3/00; H04L12/44
Domestic Patent References:
| WO2008072347A1 | 2008-06-19 |
Foreign References:
| JP2007295151A | 2007-11-08 |
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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Claims: