US 12,004,022 B2
Method and apparatus for improving voice service quality in wireless communication system
Sangsoo Jeong, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Mar. 9, 2023, as Appl. No. 18/181,024.
Application 18/181,024 is a continuation of application No. 16/947,536, filed on Aug. 5, 2020, granted, now 11,606,730.
Claims priority of application No. 10-2019-0095220 (KR), filed on Aug. 5, 2019; application No. 10-2020-0019259 (KR), filed on Feb. 17, 2020; application No. 10-2020-0021847 (KR), filed on Feb. 21, 2020; application No. 10-2020-0022522 (KR), filed on Feb. 24, 2020; and application No. 10-2020-0042447 (KR), filed on Apr. 7, 2020.
Prior Publication US 2023/0217323 A1, Jul. 6, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 36/00 (2009.01); H04W 36/14 (2009.01); H04W 36/30 (2009.01); H04W 76/16 (2018.01); H04W 76/30 (2018.01)
CPC H04W 36/0033 (2013.01) [H04W 36/0022 (2013.01); H04W 36/14 (2013.01); H04W 36/30 (2013.01); H04W 76/16 (2018.02); H04W 76/30 (2018.02)] 16 Claims
OG exemplary drawing
 
1. A method performed by a terminal in a wireless communication system, the method comprising:
establishing a multiple-access protocol data unit (MA PDU) session in a 3rd generation partnership project (3GPP) access and a non-3rd generation partnership project (N3GPP) access in a 5th-generation system (5GS);
determining whether the MA PDU session is moved to an evolved packet system (EPS) without an N26 interface between the 5GS and the EPS after the establishing the MA PDU session; and
releasing a context related to an access traffic steering, switching and splitting (ATSSS), wherein the context related to the ATSSS is associated with ATSSS rules and measurement assistance information for the MA PDU session,
wherein a release of the MA PDU session is triggered over the N3GPP access by a network entity in the 5GS.