US 11,652,564 B2 · Data communications system, optical line terminal, and baseband unit

Abstract

This application discloses a bandwidth allocation method, an optical line terminal (OLT), an optical network unit (ONU), and a system, where the method includes receiving a bandwidth request from each ONU, where the ONU includes an ONU1, generating a bandwidth map (BWMap) message according to bandwidth requested by the ONU and bandwidth configured for the ONU, where the BWMap message includes a first allocation identifier (Alloc-ID1), a first time corresponding to the Alloc-ID1, a second allocation identifier (Alloc-ID2), and a second time corresponding to the Alloc-ID2, and both the Alloc-ID1 and the Alloc-ID2 are allocated to the ONU1 for use, and sending the BWMap message to each ONU. Therefore, a problem that a transmission delay does not satisfy a requirement when a passive optical network (PON) system is applied to mobile backhaul is resolved, a data transmission rate and data transmission efficiency are improved, and user satisfaction is improved.

Claims26

Dependent claims

A bandwidth allocation method comprising:

generating a bandwidth map (BWMap) message according to bandwidth configured for a plurality of optical network units (ONUs), wherein the BWMap message comprises first allocation identifiers, wherein each first allocation identifier corresponds to a different time slot in a grant period corresponding to the BWMap message, wherein the grant period is 125 microseconds (μs), and wherein the first allocation identifiers are allocated to a first ONU of the ONUs;
and
sending the BWMap message to each of the ONUs.

An optical line terminal (OLT) comprising:

a processor configured to generate a bandwidth map (BWMap) message according to bandwidth configured for a plurality of optical network units (ONUs), wherein the BWMap message comprises first allocation identifiers, wherein each first allocation identifier corresponds to a different time slot in a grant period corresponding to the BWMap message, wherein the grant period is 125 μs, and wherein the first allocation identifiers are allocated to a first ONU of the ONUs;
and
a transceiver coupled to the processor and configured to send the BWMap message to the ONUs.

An optical network unit (ONU) comprising a receiver configured to receive a bandwidth map (BWMap) message from an optical line terminal (OLT), wherein the BWMap message comprises first allocation identifiers, wherein each first allocation identifier corresponds to a different time slot in a grant period corresponding to the BWMap message, and wherein the grant period is 125 microseconds (μs).

Dependencies are inferred from the claim text.

Data communications system, optical line terminal, and baseband unit

Life of this patent

Data communications system, optical line terminal, and baseband unit

Life of this patent

Abstract

Claims26