Patent ID: 11962563
Assignee: ARRIS ENTERPRISES LLC
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A mapping of address and port using translation (MAP-T) system for transforming one or more Internet Protocol version 4 (IPv4) packets for transmission on a low latency service flow comprising:
a memory storing one or more computer-readable instructions; and
a processor connected to the memory, the processor configured to execute the one or more computer-readable instructions to:
receive, at an access point device (APD) of the MAP-T system, the one or more IPv4 packets from at least one client device of one or more client devices, wherein the APD is connected to the one or more client devices, wherein the APD is assigned an IPv4 address that is shared by a plurality of MAP-T systems, wherein a transport space associated with the IPv4 address is separated into a plurality of transport slices, wherein each APD of the plurality of MAP-T systems is assigned a specific transport slice of the plurality of transport slices, wherein each of the plurality of transport slices comprises a defined subnet range of ports, and wherein the defined subnet range of ports comprises one or more reserved ports for low latency data traffic;
transform, by the APD, the one or more IPv4 packets to one or more Internet Protocol version 6 (IPv6) packets based on a MAP-T configuration, wherein transforming the one or more IPv4 packets to one or more IPv6 packets comprises mapping the one or more IPv4 packets to a port within the defined subnet range of ports of the specific transport slice assigned to the APD;
send, by the APD, the one or more IPv6 packets to a cable modem (CM) of the MAP-T system;
classify, by the CM, the one or more IPv6 packets to a low latency service flow associated with the one or more reserved ports of the defined subnet range of ports of the specific transport slice assigned to the APD based on a classifier; and
transmitting, by the CM, the one or more IPv6 packets on the low latency service flow to a border router for remapping of the one or more IPv6 packets back to the one or more IPv4 packets for sending to an IPv4 Internet-side network.