US 11,723,107 B2
Indicating RAN notification area update (RNAU) in RRC_INACTIVE state
Christofer Lindheimer, Linköping (SE); Icaro L. J. Da Silva, Solna (SE); Gunnar Mildh, Sollentuna (SE); and Paul Schliwa-Bertling, Ljungsbro (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on Nov. 15, 2021, as Appl. No. 17/526,255.
Application 17/526,255 is a continuation of application No. 16/338,867, granted, now 11,219,084, previously published as PCT/SE2019/050110, filed on Feb. 11, 2019.
Claims priority of provisional application 62/630,656, filed on Feb. 14, 2018.
Prior Publication US 2022/0078876 A1, Mar. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 76/27 (2018.01); H04W 76/19 (2018.01); H04W 76/28 (2018.01); H04W 60/04 (2009.01); H04W 68/08 (2009.01); H04W 74/00 (2009.01)
CPC H04W 76/27 (2018.02) [H04W 60/04 (2013.01); H04W 68/08 (2013.01); H04W 74/002 (2013.01); H04W 76/19 (2018.02); H04W 76/28 (2018.02)] 12 Claims
OG exemplary drawing
 
1. A method in a wireless device, the method comprising:
while the wireless device is in a Radio Resource Control (RRC) inactive state with respect to a wireless communication network, determining that a Radio Access Network Notification Area Update (RNAU) is needed;
evaluating whether there is any cause, other than the determined need for the RNAU, for resuming an RRC connected state with the wireless communication network; and
transmitting, to the wireless communication network, an RRC Resume Request message comprising a cause indicator indicating a cause for resuming the RRC connected state, wherein the cause indicator indicates:
an RNAU, when there is no cause for resuming the RRC connected state other than the determined need for the RNAU; and
a cause other than an RNAU, when there is any cause for resuming the RRC connected state other than the determined need for the RNAU.