US 12,177,926 B2
Managing service function chains
Alfonso de Jesus Perez Martinez, Madrid (ES); Juan Jose Delgado Reimundez, Madrid (ES); and Rodrigo Alvarez Dominguez, Madrid (ES)
Assigned to Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 17/784,333
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Mar. 3, 2020, PCT No. PCT/EP2020/055558
§ 371(c)(1), (2) Date Jun. 10, 2022,
PCT Pub. No. WO2021/155960, PCT Pub. Date Aug. 12, 2021.
Claims priority of application No. 20382073 (EP), filed on Feb. 4, 2020.
Prior Publication US 2023/0058366 A1, Feb. 23, 2023
Int. Cl. H04W 76/20 (2018.01); H04W 24/10 (2009.01)
CPC H04W 76/20 (2018.02) [H04W 24/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method in a policy control function (PCF) of moving a session from a service function chain (SFC) to a new SFC, wherein the SFC comprises a first service function (SF) that modifies packets in the session, the method comprising:
determining to update a second SF in the SFC for the session;
determining a new SFC for the session comprising new SFs, wherein the new SFs are selected based on the determined update to the second SF and information related to the packet modification performed by the first SF; and
sending a first message to a session management function, SMF, comprising updated policy control rules for the session, wherein the updated policy control rules comprise an indication of the new SFC for the session.