发明公开
EP1872505A2 DYNAMIC BANDWIDTH ALLOCATION AND SERVICE DIFFERENTIATION FOR BROADBAND PASSIVE OPTICAL NETWORKS
审中-公开
DENNAMISCHE BANDBREITENZUTEILUNG UND DIENSTDIFFERENZIERUNGFÜRBREITBANDIGE被动OPTISCHE NETZWERKE
- 专利标题： DYNAMIC BANDWIDTH ALLOCATION AND SERVICE DIFFERENTIATION FOR BROADBAND PASSIVE OPTICAL NETWORKS
- 专利标题（中）： DENNAMISCHE BANDBREITENZUTEILUNG UND DIENSTDIFFERENZIERUNGFÜRBREITBANDIGE被动OPTISCHE NETZWERKE
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申请号： EP06750350.8申请日： 2006-04-17
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公开(公告)号： EP1872505A2公开(公告)日： 2008-01-02
- 发明人: ANSARI, Nirwan , LUO, Yuanqiu
- 申请人： New Jersey Institute of Technology
- 申请人地址： Office of R&D, Suite 340 University Heights, East Building Newark, NJ 07102-1982 US
- 专利权人： New Jersey Institute of Technology
- 当前专利权人： New Jersey Institute of Technology
- 当前专利权人地址： Office of R&D, Suite 340 University Heights, East Building Newark, NJ 07102-1982 US
- 代理机构： Waddington, Richard
- 优先权： US671973P 20050415
- 国际公布： WO2006113553 20061026
- 主分类号： H04L5/12
- IPC分类号： H04L5/12
摘要：
A dynamic upstream bandwidth allocation scheme is disclosed, i.e., limited sharing with traffic prediction (LSTP), to improve the bandwidth efficiency of upstream transmission over PONS. LSTP adopts the PON MAC control messages, and dynamically allocates bandwidth according to the on-line traffic load. The ONU bandwidth requirement includes the already buffered data and a prediction of the incoming data, thus reducing the frame delay and alleviating the data loss. ONUs are served by the OLT in a fixed order in LSTP to facilitate the traffic prediction. Each optical network unit (ONU) classifies its local traffic into three classes with descending priorities: expedited forwarding (EF), assured forwarding (AF), and best effort (BE). Data with higher priority replace data with lower priority when the buffer is full.
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