US 11,985,707 B2
Extended random access preamble identifier for enhanced random access channel
Antti Ratilainen, Espoo (FI); Andreas Höglund, Solna (SE); Olof Liberg, Stockholm (SE); Yutao Sui, Solna (SE); and Emre Yavuz, Stockholm (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 16/976,153
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Apr. 4, 2019, PCT No. PCT/IB2019/052784
§ 371(c)(1), (2) Date Aug. 27, 2020,
PCT Pub. No. WO2019/193548, PCT Pub. Date Oct. 10, 2019.
Claims priority of provisional application 62/653,411, filed on Apr. 5, 2018.
Prior Publication US 2021/0014901 A1, Jan. 14, 2021
Int. Cl. H04W 74/08 (2009.01); G16Y 10/75 (2020.01); H04L 69/22 (2022.01); H04W 74/0833 (2024.01); H04W 80/02 (2009.01); H04W 84/04 (2009.01)
CPC H04W 74/0833 (2013.01) [G16Y 10/75 (2020.01); H04L 69/22 (2013.01); H04W 80/02 (2013.01); H04W 84/042 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A method for use in a network node, comprising:
determining to use an extended random access preamble identifier (RAPID) for a random access procedure with a wireless device; and
transmitting a medium access control (MAC) protocol data unit (PDU), the MAC PDU comprising a header and one or more random access responses (RARs), each RAR associated with a corresponding subheader within the header of the MAC PDU;
wherein the random access procedure is associated with a first RAR of the one or more RARs and the extended RAPID for the random access procedure is indicated by a combination of one or more bits in the first RAR and one or more bits in the subheader that corresponds to the first RAR.