Invention Grant
- Patent Title: Method and system for upstream bandwidth allocation in a passive optical network
- Patent Title (中): 无源光网络中上行带宽分配的方法和系统
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Application No.: US13577913Application Date: 2010-11-05
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Publication No.: US08934772B2Publication Date: 2015-01-13
- Inventor: Weiliang Zhang , Dan Geng
- Applicant: Weiliang Zhang , Dan Geng
- Applicant Address: CN Shenzhen
- Assignee: ZTE Corporation
- Current Assignee: ZTE Corporation
- Current Assignee Address: CN Shenzhen
- Agency: Oppedahl Patent Law Firm LLC
- Priority: CN201010122498 20100212
- International Application: PCT/CN2010/078450 WO 20101105
- International Announcement: WO2011/097904 WO 20110818
- Main IPC: H04J14/02
- IPC: H04J14/02 ; H04J14/00 ; H04B17/00 ; H04B10/00 ; H04J3/16 ; H04Q11/00 ; H04B10/272

Abstract:
A method for upstream bandwidth allocation in a passive optical network is provided by the disclosure. The method includes the following steps: an Optical Line Terminal (OLT) allocates an upstream bandwidth for an Optical Network Unit (ONU) through an upstream bandwidth mapping (US BWmap) domain, wherein the total length B of payloads transmitted by consecutive Transmission Containers (T-CONTs) allocated for the ONU is: the product of the positive integer n and the data byte length L contained in a code word when the ONU uses Forward Error Correction (FEC) encoding, minus the byte length R of the contents protected by FEC, except the payloads, in an upstream burst slot transmitted by the ONU, i.e. B=L×n−R bytes (401); and the ONU encapsulates the upstream data according to the size of the T-CONT total bandwidth allocated by the OLT and transmits it to the OLT (402). A system for upstream bandwidth allocation in a passive optical network is also provided by the disclosure. Application of the disclosure reduces the complexity of processing FEC-encoded data by the ONU and the OLT, and improves the encoding efficiency of the ONU and the decoding efficiency of the OLT.
Public/Granted literature
- US20130045011A1 Method and system for upstream bandwidth allocation in a passive optical network Public/Granted day:2013-02-21
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