Dynamic bandwidth assignment in hybrid access network with passive optical network and another medium

摘要

An optical line terminal (OLT) configured to receive transmission requests from a plurality of both network elements (NE) and customer premises equipment (CPE), allocate a timeslot to each NE for transmission on an optical distribution network (ODN), and a timeslot to each CPE for transmission on an electrical distribution network (EDN), wherein each NE intermediates between the OLT and the CPEs. Included is a NE configured to transmit a timeslot to a CPE for transmission on an EDN allocated by an OLT, receive data frames from the CPE during the timeslot, and forward the data frames to the OLT without rescheduling. Also included is a method comprising sending a transmission request to an OLT, receiving a timeslot from the OLT for transmission on an EDN in response, transmitting data frames to a NE during the timeslot, wherein the NE forwards the data frames to the OLT without rescheduling.

主权项

1. An optical line terminal (OLT) comprising:
an optical port configured to couple to a plurality of network elements (NE) via an optical distribution network (ODN), wherein each NE intermediates between the OLT via the ODN and a plurality of customer premises equipments (CPEs) via an electrical distribution network (EDN), and wherein the CPEs comprise a first CPE and the NEs comprise a first NE positioned between the OLT and the first CPE; and a processor coupled to the optical port, wherein the processor is configured to:
receive a plurality of first transmission requests from the NEs and a plurality of second transmission requests from the CPEs, wherein the first transmission requests do not originate from the CPEs;calculate a transmission delay between the first CPE and the first NE;allocate a first timeslot to each of the plurality of NEs for transmission on the ODN in response to the plurality of first transmission requests and the plurality of second transmission requests; and allocate a second timeslot to each of the plurality of CPEs for transmission on the EDN in response to the plurality of first transmission requests and the plurality of second transmission requests.