US 12,439,471 B2
Access control of user equipments for inactive direct transmissions
Fangli Xu, Beijing (CN); Chunhai Yao, Beijing (CN); Dawei Zhang, Saratoga, CA (US); Haijing Hu, Beijing (CN); Longda Xing, Cupertino, CA (US); Murtaza A. Shikari, Cupertino, CA (US); Sarma V. Vangala, Cupertino, CA (US); Srinivasan Nimmala, Cupertino, CA (US); and Wei Zeng, Saratoga, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/441,803
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Aug. 6, 2020, PCT No. PCT/CN2020/107508
§ 371(c)(1), (2) Date Sep. 22, 2021,
PCT Pub. No. WO2022/027479, PCT Pub. Date Feb. 10, 2022.
Prior Publication US 2023/0156849 A1, May 18, 2023
Int. Cl. H04W 76/27 (2018.01); H04W 74/0833 (2024.01)
CPC H04W 76/27 (2018.02) [H04W 74/0833 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A baseband (BB) processor for a user equipment (UE) configured to, when executing instructions stored in a memory, perform operations comprising:
providing, to a radio frequency (RF) interface during an INACTIVE state of the UE, a direct transmission signal including one or more access control parameters associated with an uplink (UL) data transmission, wherein the one or more access control parameters include a Resume Cause;
in response to providing the direct transmission signal, monitoring for an access control (AC) feedback signal during a predefined feedback time window;
in response to not receiving the AC feedback signal during the predefined feedback time window, initiating a legacy resume procedure to transition the UE from the INACTIVE state to a CONNECTED state to perform one or more subsequent UL data transmissions;
in response to receiving the AC feedback signal during the predefined feedback time window, remaining in the INACTIVE state to perform the one or more subsequent UL data transmissions; and
providing the one or more subsequent UL data transmissions to the RF interface for transmission during the INACTIVE state of the UE or the CONNECTED state of the UE, based on whether the AC feedback signal was received during the predefined feedback time window.