US 12,426,099 B2
Idle/inactive mobility for small data transmission
Dylan Watts, Montreal (CA); Faris Alfarhan, Montreal (CA); and Loic Canonne-Velasquez, Dorval (CA)
Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Appl. No. 18/019,888
Filed by InterDigital Patent Holdings, Inc., Wilmington, DE (US)
PCT Filed Aug. 4, 2021, PCT No. PCT/US2021/044486
§ 371(c)(1), (2) Date Feb. 6, 2023,
PCT Pub. No. WO2022/031809, PCT Pub. Date Feb. 10, 2022.
Claims priority of provisional application 63/061,662, filed on Aug. 5, 2020.
Claims priority of provisional application 63/093,991, filed on Oct. 20, 2020.
Prior Publication US 2023/0284289 A1, Sep. 7, 2023
Int. Cl. H04W 74/0833 (2024.01); H04W 72/231 (2023.01); H04W 76/19 (2018.01)
CPC H04W 74/085 (2013.01) [H04W 72/231 (2023.01); H04W 76/19 (2018.02)] 15 Claims
OG exemplary drawing
 
1. A wireless transmit-receive unit (WTRU) associated with a first cell, the WTRU comprising:
a processor configured to:
receive configuration information indicating a search space and a duration of a time period, wherein the time period is associated with small data transmission;
receive a first small data transmission and start tracking the time period;
monitor for a downlink transmission in the search space during the time period;
if the downlink transmission is received during the time period, receive a second small data transmission and restart the time period, wherein the downlink transmission comprises a downlink transmission grant; and
if a condition for cell reselection is satisfied during the time period or the restarted time period:
select a second cell, and
perform a random access procedure associated with the second cell, wherein the random access procedure is further associated with small data transmission and comprises sending a request to resume a radio resource control (RRC) connection.