US 12,089,259 B2
Method and apparatus for determining radio network temporary identifier in two-step random access procedure
Zhipeng Lin, Nanjing Jiangsu (CN); Andres Reial, Lomma (SE); Jan Christoffersson, Luleå (SE); Henrik Enbuske, Stockholm (SE); Johan Axnäs, Solna (SE); and Robert Mark Harrison, Grapevine, TX (US)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 17/439,985
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Mar. 26, 2020, PCT No. PCT/CN2020/081452
§ 371(c)(1), (2) Date Sep. 16, 2021,
PCT Pub. No. WO2020/192738, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. PCT/CN2019/080270 (WO), filed on Mar. 28, 2019.
Prior Publication US 2022/0174744 A1, Jun. 2, 2022
Int. Cl. H04W 74/0833 (2024.01)
CPC H04W 74/0833 (2013.01) 16 Claims
OG exemplary drawing
 
1. A method performed by a terminal device, comprising:
determining a request message for random access, wherein the request message comprises a preamble and a physical uplink shared channel (PUSCH) message and wherein the PUSCH message is determined based on a first radio network temporary identity (RNTI);
transmitting the request message; and
obtaining a response message for random access based on a second RNTI;
wherein the first RNTI is used for scrambling encoded bits of the PUSCH message, and the second RNTI is used for scrambling a cyclic redundancy check (CRC) of a Physical Downlink Control Channel (PDCCH) message scheduling a Physical Downlink Shared Channel (PDSCH) carrying the response message.