Patent ID: 8934772
Filing Date: 2015-01-13
Classification: H04B,H04J,H04Q

Abstract:
1. A method for upstream bandwidth allocation in a Passive Optical Network (PON), comprising: allocating, by an Optical Line Terminal (OLT), an upstream bandwidth for an Optical Network Unit (ONU) through an Upstream Bandwidth Map (US BWmap) domain in terms of a total length B of payloads transmitted by consecutive Transmission Containers (T-CONTs) allocated for the ONU, wherein B is the product of a positive integer n and a byte length L of data contained in one code word when the ONU uses Forward Error Correction (FEC) encoding, minus a byte length R of contents protected by FEC, except the payloads, in an upstream burst slot transmitted by the ONU, i.e. B=L×n−R bytes, wherein the product of n and L is a byte length of contents protected by FEC in an upstream burst slot transmitted by the ONU; and encapsulating, by the ONU, upstream data according to the upstream bandwidth allocated by the OLT, and transmitting the upstream data by the ONU to the OLT.