US 12,471,174 B2
Method and apparatus for data transfer and buffer status reporting in RRC_INACTIVE state in mobile wireless communication system
Soenghun Kim, Gyeonggi-do (KR)
Assigned to BLACKPIN INC., Seoul (KR); and Soenghun Kim, Gyeonggi-do (KR)
Filed by BLACKPIN INC., Seoul (KR); and Soenghun Kim, Gyeonggi-do (KR)
Filed on Mar. 16, 2023, as Appl. No. 18/122,137.
Application 18/122,137 is a continuation of application No. PCT/KR2022/011380, filed on Aug. 2, 2022.
Claims priority of application No. 10-2021-0108978 (KR), filed on Aug. 18, 2021.
Prior Publication US 2023/0232490 A1, Jul. 20, 2023
Int. Cl. H04W 76/27 (2018.01); H04W 72/21 (2023.01); H04W 72/23 (2023.01); H04W 76/19 (2018.01); H04W 76/30 (2018.01)
CPC H04W 76/27 (2018.02) [H04W 72/21 (2023.01); H04W 72/23 (2023.01); H04W 76/19 (2018.02); H04W 76/30 (2018.02)] 5 Claims
OG exemplary drawing
 
1. A method performed by a terminal, the method comprising:
receiving by the terminal from a base station a downlink Radio Resource Control (RRC) message that instructs state transitioning to RRC inactive state;
receiving by the terminal a system information;
determining by the terminal to initiate a resume procedure;
restoring by the terminal User Equipment (UE) Inactive Access Stratum (AS) context; and
transmitting by the terminal to the base station a Medium Access Control (MAC) Protocol Data Unit (PDU),
wherein the MAC PDU comprises an uplink RRC message that comprises an identifier of the terminal and a resume cause related to small data transmission (SDT),
wherein the MAC PDU further comprises an uplink SDT data,
wherein:
a predefined logical channel priority is applied to the uplink RRC message; and
a logical channel priority stored in the UE Inactive AS context is applied to the uplink SDT data.