US 12,256,320 B2
Method and system for packet data network service slicing over a network infrastructure for real-time IP services
Xiaoyuan Yang, Madrid (ES); Josue Igual Blanco, Madrid (ES); and Emilio A. Garrido Garcia, Madrid (ES)
Assigned to TELEFONICA INNOVACION DIGITAL SL, Madrid (ES)
Filed by TELEFONICA INNOVACION DIGITAL SL, Madrid (ES)
Filed on Dec. 30, 2021, as Appl. No. 17/646,510.
Claims priority of application No. 21382012 (EP), filed on Jan. 13, 2021.
Prior Publication US 2022/0225226 A1, Jul. 14, 2022
Int. Cl. H04W 48/18 (2009.01); G06F 9/455 (2018.01); H04W 4/50 (2018.01); H04W 28/02 (2009.01); H04W 76/10 (2018.01)
CPC H04W 48/18 (2013.01) [G06F 9/45558 (2013.01); H04W 4/50 (2018.02); H04W 28/0268 (2013.01); H04W 76/10 (2018.02); G06F 2009/45595 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for packet data network service slicing over a network infrastructure for real-time IP services, said network infrastructure comprising a plurality of regions linked via a transportation network, each region of the plurality of regions having a plurality of service nodes, the method comprising:
providing an orchestration server at a given location where a service provider is located, the orchestration server having knowledge of a whole connectivity status of the network infrastructure, and being configured to manage the plurality of service nodes;
receiving, by the orchestration server, a session request for a real-time Internet Protocol (IP) service from a user equipment (UE) device located in a given region of said plurality of regions;
upon reception of said session request, requesting, by the orchestration server, one or more service nodes of the plurality of service nodes of said given region whether the one or more service nodes have network resources;
discard, by the orchestration server, the service nodes of the one or more service nodes with a Health Node Indicator (HHNI) less than a threshold, the HHNI being based on IP metrics, User Datagram Protocol (UDP) metrics, Transmission Control Protocol (TCP) metrics and/or Internet Control Message Protocol (ICMP) metrics; and
subsequent to the discarding, selecting, by the orchestration server, a given service node of the one or more service nodes in view of a Quality of Service (QoS) measurement for respective service nodes of the one or more service nodes,
wherein the QoS measurement is based on Key Performance Indicators (KPI), the KPI comprising latency, jitter and bandwidth,
wherein the latency is a latency between a respective service node and a physical point in the network infrastructure to which the UE is mapped,
wherein the jitter is a jitter between the respective service node and the physical point in the network infrastructure to which the UE is mapped, and
wherein the QoS measurement is computed by a software module that is implemented on a virtual machine deployed on a respective service node.