US 11,937,140 B2
Quality of service handling procedures
Alosious Pradeep Prabhakar, Singapore (SG); Mohammed Sadique, Parramatta (AU); Vijay Venkataraman, San Jose, CA (US); Krisztian Kiss, Hayward, CA (US); Han Pu, Hong Kong (HK); ChunLei Lin, Hong Kong (HK); Rodney G. Ibrahim, Oatlands (AU); Yip Pong Herbert Wong, Hong Kong (HK); Jordi Agud Ruiz, Meguro-ku (JP); Srinivasan Nimmala, San Jose, CA (US); Lakshmi N. Kavuri, Cupertino, CA (US); Utkarsh Kumar, Fremont, CA (US); Yifan Zhu, San Jose, CA (US); and Kok Yin Chan, Hornsby (AU)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Sep. 25, 2020, as Appl. No. 17/033,429.
Claims priority of provisional application 62/909,284, filed on Oct. 2, 2019.
Prior Publication US 2021/0105687 A1, Apr. 8, 2021
Int. Cl. H04W 36/14 (2009.01); H04L 43/0829 (2022.01); H04L 69/322 (2022.01); H04W 12/033 (2021.01); H04W 36/00 (2009.01); H04W 36/26 (2009.01); H04W 76/16 (2018.01); H04W 76/18 (2018.01); H04W 76/19 (2018.01); H04W 76/27 (2018.01)
CPC H04W 36/14 (2013.01) [H04L 43/0829 (2013.01); H04L 69/322 (2013.01); H04W 12/033 (2021.01); H04W 36/0069 (2018.08); H04W 36/26 (2013.01); H04W 76/16 (2018.02); H04W 76/18 (2018.02); H04W 76/19 (2018.02); H04W 76/27 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A wireless device, comprising:
at least one antenna;
at least one radio coupled to the at least one antenna; and
a processor coupled to the at least one radio;
wherein the wireless device is configured to:
establish a cellular link that provides access to a fifth generation core (5GC) network;
establish a protocol data unit (PDU) session with a cellular network entity of the 5GC network;
receive, from the cellular network entity, signaling indicating one or more quality of service (QoS) flow descriptions for the PDU session;
determine that the PDU session may flow at least in part between the wireless device and a long term evolution (LTE) base station;
transmit, based at least in part on the determination that the PDU session may flow at least in part between the wireless device and the LTE base station, a request to the cellular network entity of the 5GC network to modify the one or more QoS flow descriptions for the PDU session;
receive a PDU session modification reject message in response to the request for modification, wherein the PDU session modification reject message includes a cause code for invalid mapped evolved packet service (EPS) bearer QoS, and wherein the invalid mapped EPS bear QoS is associated with an incorrect QoS;
provide a service request to the 5GC network, wherein the service request is for one or more network services or applications that are not supported by the 5GC network but are supported by an evolved packet core (EPC) network; and
receive a PDU session release message indicating to release the PDU session, wherein the PDU session release message includes a cause code indicating to fallback to evolved packet service (EPS), and wherein the PDU session release message further includes a mapped EPS bearer context information element indicating EPS bearer mapping information for the PDU session.