US 12,192,106 B2
Openflow based distributed antenna system policy routing method
Dong Hee Kwon, Seongnam-si (KR); Hoo Pyo Hong, Seongnam-si (KR); and Young Man Cho, Seoul (KR)
Assigned to SOLID Inc., Seongnam-si (KR)
Filed by SOLiD Inc., Seongnam-si (KR)
Filed on Jan. 16, 2022, as Appl. No. 17/576,957.
Application 17/576,957 is a division of application No. 17/026,314, filed on Sep. 21, 2020, granted, now 11,252,092.
Application 17/026,314 is a continuation of application No. 16/145,252, filed on Sep. 28, 2018, granted, now 10,819,644, issued on Oct. 27, 2020.
Claims priority of application No. 10-2017-0127921 (KR), filed on Sep. 29, 2017.
Prior Publication US 2022/0141142 A1, May 5, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 47/20 (2022.01); H04B 7/022 (2017.01); H04L 41/0803 (2022.01); H04L 41/0893 (2022.01); H04L 45/02 (2022.01); H04L 45/302 (2022.01); H04L 45/64 (2022.01); H04L 47/2441 (2022.01); H04W 88/08 (2009.01)
CPC H04L 47/20 (2013.01) [H04B 7/022 (2013.01); H04L 41/0803 (2013.01); H04L 41/0893 (2013.01); H04L 45/02 (2013.01); H04L 45/302 (2013.01); H04L 45/64 (2013.01); H04L 47/2441 (2013.01); H04W 88/085 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An OpenFlow based distributed antenna system (DAS) policy routing method comprising:
classifying, by a DAS unit, a service of traffic received through an input port of the DAS unit into a macro fronthaul service and a Smallcell or WiFi backhaul service, and performing framing according to the classified service;
extracting, by the DAS unit, a match field from header information of a received frame; and
comparing, by the DAS unit, the extracted match field with a matching rule of a forwarding table to route according to a matching traffic transmission policy and output a frame to an output port of the DAS unit,
wherein the DAS unit includes a control plane and a data plane,
wherein the control plane is configured to receive the traffic transmission policy from a DAS controller and set transmission policy of the data plane,
wherein the data plane is configured to transmit traffic received through the input port of the DAS unit to the output port based on the received traffic transmission policy, and
wherein the data plane of the DAS unit supports only the traffic transmission function of a vendor's own specification, and the DAS unit maps and set the OpenFlow based traffic transmission policy to the traffic transmission policy of the vendor's own specification of the DAS unit.