US 9,432,142 B2 · Pre-emption in passive optical networks

Abstract

A device for pre-emption in passive optical networks may include a first media access control (MAC) module configured to receive a first type of data traffic and transmit the first type of data traffic to a MAC merge module. The device may further include a second media access control (MAC) module configured to receive a second type of data traffic and transmit the second type of data traffic to the MAC merge module. The device may further include the MAC merge module configured to receive the first and second types of data traffic from the first and second MAC modules, respectively, and provide the first and second types of data traffic for transmission over a port. The MAC merge module may be configured to pre-empt the transmission of the first type of data traffic over the port in favor of the second type of data traffic.

Claims20

Dependent claims

A method comprising:

transmitting a first type of data traffic addressed to a first optical network unit (ONU) to a passive optical network over a common port;
pre-empting transmission of the first type of data traffic addressed to the first ONU over the passive optical network in response to detecting a presence of a second type of data traffic addressed to a second ONU, the second ONU being distinct from the first ONU, or in response to receiving a first request to hold the first type of data traffic;
transmitting the second type of data traffic addressed to the second ONU to the passive optical network over the common port;
and
resuming the transmission of the first type of data traffic addressed to the first ONU to the passive optical network over the common port upon completion of transmitting the second type of data traffic addressed to the second ONU, or responsive to receiving a second request to release the hold of the first type of data traffic.

2 more elements

A device comprising:

a first media access control (MAC) module configured to receive a first type of data traffic and transmit the first type of data traffic to a MAC merge module;
a second MAC module configured to receive a second type of data traffic and transmit the second type of data traffic to the MAC merge module;
a multipoint MAC control module configured to provide an indication to the MAC merge module when transmission of the first type of data traffic should be pre-empted in favor of the second type of data traffic;
and
the MAC merge module configured to receive the first and second types of data traffic from the first and second MAC modules, respectively, and provide the first and second types of data traffic for transmission over a port to a passive optical network, wherein the MAC merge module is configured to pre-empt the transmission of the first type of data traffic over the port in response to receiving the indication from the multipoint MAC control module.

2 more elements

Dependencies are inferred from the claim text.

Pre-emption in passive optical networks

Life of this patent

Pre-emption in passive optical networks

Life of this patent

Abstract

Claims20