The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 14, 2022

Filed:

Apr. 16, 2021
Applicant:

T-mobile Usa, Inc., Bellevue, WA (US);

Inventors:

Khurram Ahmad Mirza, Bellevue, WA (US);

Sasikala Mannepally, Bellevue, WA (US);

Shujaur Mufti, Snoqualmie, WA (US);

Assignee:

T-Mobile USA, Inc., Bellevue, WA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 28/08 (2009.01); H04W 76/18 (2018.01); H04W 40/12 (2009.01); H04W 76/12 (2018.01); H04W 36/26 (2009.01);
U.S. Cl.
CPC ...
H04W 40/12 (2013.01); H04W 28/0925 (2020.05); H04W 28/0975 (2020.05); H04W 36/26 (2013.01); H04W 76/12 (2018.02);
Abstract

Policy node grouping provides efficient network operation by improving the speed and reliability of policy node traffic. Disclosed solutions include: receiving, at a proxy-call session control function (P-CSCF), from a user equipment (UE), a data traffic session request; based on at least the data traffic session request and group policy criteria, selecting a policy node group from among a plurality of policy node groups, the plurality of policy node groups each comprising policy node peers grouped by a service type; based on at least the selected policy node group, determining a selected policy node; based on at least the selected policy node and the data traffic session request, establishing a data traffic session for the UE; and based on at least meeting policy node failover criteria and a failover latency timer, performing an inter-group or intra-group failover according to the group policy criteria.


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