Patent ID: 6990123
Filing Date: 2006-01-24
Classification: H04Q,Y10S

Abstract:
1. A method of communicating between a burst manager and plural remote terminals over a first passive optical network (PON) and a second PON, each PON having a downstream portion and an upstream portion, the method comprising: transmitting burst data from the plural remote terminals over both upstream PON portions to the burst manager, the burst data for each remote terminal being delayed on the first PON by a corresponding first delay and being delayed on the second PON by a corresponding second delay, the first delay comprising a first ranging delay and the second delay comprising a second ranging delay wherein the first and second ranging delays for each remote terminal are adjusted with respect to the common synchronization signal such that the burst data for any particular remote terminal transmitted on the first PON arrives at the burst manager simultaneously with the burst data for that particular remote terminal transmitted on the second PON, wherein transmitting burst data includes transmitting burst data in TDMA timeslots such that corresponding timeslots on both PONs for each remote terminal are received at the burst manager aligned and in the same relative timeslot position and further comprising examining data received in the corresponding timeslots on both PONs at the burst manager to determine which timeslots contain valid data selecting a valid data on a per timeslot basis.