US 11,057,936 B2
Mechanism for merging colliding RACH procedures
Min Wang, Luleå (SE); Jan Christoffersson, Luleå (SE); and Mats Folke, Vällingby (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 16/90,660
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Jul. 12, 2018, PCT No. PCT/SE2018/050761
§ 371(c)(1), (2) Date Oct. 2, 2018,
PCT Pub. No. WO2020/013741, PCT Pub. Date Jan. 16, 2020.
Prior Publication US 2020/0351944 A1, Nov. 5, 2020
Int. Cl. H04W 4/00 (2018.01); H04W 74/08 (2009.01); H04L 1/16 (2006.01); H04W 52/36 (2009.01); H04W 72/04 (2009.01)
CPC H04W 74/0833 (2013.01) [H04L 1/1614 (2013.01); H04W 52/36 (2013.01); H04W 72/0446 (2013.01); H04W 72/0453 (2013.01); H04W 74/0808 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method in a user equipment (UE) for performing random access (RA) to connect to a wireless access network, the method comprising:
combining a second RA procedure and a first RA procedure responsive to determining that the second RA procedure was triggered while the first RA procedure is ongoing and before a RA response is received for the first RA procedure; and
transmitting a combined RA message for the combined first and second RA procedures at a transmission occasion for the first RA procedure or the second RA procedure.