US 12,495,392 B2
Paging message for mobile terminating small data transmission
Kun Lu, Bellevue, WA (US); John Humbert, Roeland Park, KS (US); Scott Francis Migaldi, Cary, IL (US); Christopher H. Joul, Bellevue, WA (US); and Jun Liu, Issaquah, WA (US)
Assigned to T-Mobile USA, Inc., Bellevue, WA (US)
Filed by T-Mobile USA, Inc., Bellevue, WA (US)
Filed on Nov. 3, 2022, as Appl. No. 17/980,362.
Prior Publication US 2024/0155556 A1, May 9, 2024
Int. Cl. H04W 76/30 (2018.01); H04W 68/00 (2009.01); H04W 76/27 (2018.01)
CPC H04W 68/005 (2013.01) [H04W 76/30 (2018.02)] 20 Claims
OG exemplary drawing
 
9. A base station of a telecommunication network, comprising:
one or more processors, and
memory storing computer-executable instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising:
determining that a small data payload is available for a mobile terminating (MT) user equipment (UE), wherein the MT UE;
is in a Radio Resource Control (RRC) Inactive state, and
is associated with an RRC connection that has been suspended;
sending, to the MT UE, a paging message that includes a mobile terminating small data transmission (MT-SDT) paging cause, wherein:
the MT-SDT paging cause indicates that the MT UE can obtain the small data payload via small data transmission (SDT) procedures via one or more data radio bearers (DRBs) associated with the RRC connection while the MT UE remains in the RRC Inactive state;
receiving an RRC resume request from the MT UE in response to the paging message, wherein:
an uplink payload portion of the RRC resume request expresses a predefined value indicative of a request by the MT UE to use the SDT procedures to obtain the small data payload;
resuming the one or more DRBs associated with the RRC connection; and
sending the small data payload to the MT UE via the one or more DRBs associated with the RRC connection.