US 12,250,734 B2
Method and apparatus for a two-step random access procedure
Hyejung Jung, Northbrook, IL (US); Joachim Löhr, Wiesbaden (DE); Vijay Nangia, Woodridge, IL (US); Prateek Basu Mallick, Dreieich (DE); Ravi Kuchibhotla, Chicago, IL (US); Alexander Johann Maria Golitschek Edler von Elbwart, Darmstadt (DE); and Robert T. Love, Barrington, IL (US)
Assigned to Lenovo (Singapore) Pte. Ltd., New Tech Park (SG)
Appl. No. 17/764,181
Filed by Lenovo (Singapore) Pte. Ltd., New Tech Park (SG)
PCT Filed Oct. 5, 2020, PCT No. PCT/IB2020/059309
§ 371(c)(1), (2) Date Mar. 26, 2022,
PCT Pub. No. WO2021/064706, PCT Pub. Date Apr. 8, 2021.
Claims priority of provisional application 62/911,197, filed on Oct. 4, 2019.
Prior Publication US 2022/0386387 A1, Dec. 1, 2022
Int. Cl. H04W 74/0833 (2024.01); H04L 1/00 (2006.01); H04L 1/1812 (2023.01); H04W 24/08 (2009.01); H04W 52/24 (2009.01); H04W 52/32 (2009.01); H04W 52/36 (2009.01); H04W 74/00 (2009.01)
CPC H04W 74/0841 (2013.01) [H04L 1/0061 (2013.01); H04L 1/1812 (2013.01); H04W 24/08 (2013.01); H04W 52/242 (2013.01); H04W 52/325 (2013.01); H04W 52/367 (2013.01); H04W 74/002 (2013.01); H04W 74/006 (2013.01); H04W 74/0833 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a user equipment (UE), the method comprising:
receiving a command initiating a random access procedure, the command comprising a common uplink control channel resource set and information of a type of the random access procedure, wherein the type of the random access procedure comprises a 2-step random access procedure or a 4-step random access procedure;
transmitting a MsgA transmission in response to receiving the command based at least in part on the type of the random access procedure being the 2-step random access procedure;
receiving, in response to the MsgA transmission, a MsgB transmission;
selecting a common uplink control channel resource of the common uplink control channel resource set based at least in part on reception of the MsgB transmission; and
transmitting, using the common uplink control channel resource, feedback information associated with the MsgB transmission.