US 12,177,939 B2
Group communication session inactivity notification
Peyman Talebi Fard, Vienna, VA (US); Esmael Hejazi Dinan, McLean, VA (US); Jinsook Ryu, Oakton, VA (US); Kyungmin Park, Vienna, VA (US); and Weihua Qiao, Herndon, VA (US)
Assigned to Ofinno, LLC, Reston, VA (US)
Filed by Ofinno, LLC, Reston, VA (US)
Filed on Oct. 5, 2023, as Appl. No. 18/377,096.
Application 18/377,096 is a continuation of application No. 17/714,386, filed on Apr. 6, 2022, granted, now 11,785,668.
Application 17/714,386 is a continuation of application No. 16/865,565, filed on May 4, 2020, granted, now 11,330,667, issued on May 10, 2022.
Claims priority of provisional application 62/843,132, filed on May 3, 2019.
Prior Publication US 2024/0040664 A1, Feb. 1, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 80/10 (2009.01); H04W 4/08 (2009.01); H04W 28/22 (2009.01); H04W 80/02 (2009.01)
CPC H04W 80/10 (2013.01) [H04W 4/08 (2013.01); H04W 28/22 (2013.01); H04W 80/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A session management function (SMF) comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the SMF to:
send, to a user plane function (UPF), a session configuration message comprising a packet detection rule (PDR) for a group communication session, wherein the PDR comprises:
a multicast address mapped to a plurality of wireless devices associated with the group communication session; and
a forwarding rule associated with the multicast address;
receive, from the UPF, a notification of inactivity for the group communication session associated with the multicast address; and
send, to the UPF and after receiving the notification of inactivity, a session modification request comprising a downlink tunnel configuration for multicast data.