US 12,232,007 B2
Systems and methods for emergency service access by reduced capability radio frequency devices
Anatoliy S Ioffe, Redwood City, CA (US); Ronald W Dimpflmaier, Los Gatos, CA (US); Alexander Sayenko, Munich (DE); and Fucheng Wang, Cupertino, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Jan. 31, 2022, as Appl. No. 17/589,410.
Claims priority of provisional application 63/196,550, filed on Jun. 3, 2021.
Prior Publication US 2022/0394450 A1, Dec. 8, 2022
Int. Cl. H04W 4/90 (2018.01); H04W 74/0833 (2024.01); H04W 76/50 (2018.01)
CPC H04W 4/90 (2018.02) [H04W 74/0841 (2013.01); H04W 76/50 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving a connection request comprising a random access preamble from user equipment, the random access preamble comprising a first indication of a number of receive branches associated with the user equipment;
receiving a second indication from the user equipment indicating that the connection request is associated with an emergency, the second indication being appended as one or more bits to the random access preamble;
determining to fulfill the connection request based on the first indication and the second indication; and
transmitting a contention resolution response based on determining to fulfill the connection request.