US 12,137,483 B2
Systems and methods of enhanced random access procedure
Zhihong Qiu, Shenzhen (CN); and He Huang, Shenzhen (CN)
Assigned to ZTE Corporation, Shenzhen (CN)
Filed by ZTE CORPORATION, Guangdong (CN)
Filed on Oct. 29, 2021, as Appl. No. 17/514,348.
Application 17/514,348 is a continuation of application No. PCT/CN2019/085313, filed on Apr. 30, 2019.
Prior Publication US 2022/0264638 A1, Aug. 18, 2022
Int. Cl. H04W 74/0833 (2024.01); H04W 72/044 (2023.01); H04W 72/0446 (2023.01); H04W 72/0453 (2023.01); H04W 74/08 (2024.01); H04W 80/02 (2009.01)
CPC H04W 74/085 (2013.01) [H04W 72/0446 (2013.01); H04W 72/0453 (2013.01); H04W 72/0466 (2013.01); H04W 74/0866 (2013.01); H04W 80/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of random access comprising:
transmitting, by a wireless communication device, a first message including a preamble and a data payload to a network; and
receiving, by the wireless communication device from the network, a second message in response to the first message,
wherein the second message is a MAC PDU that includes one or more MAC subPDUs, at least one MAC subPDU of the one or more MAC subPDUs including first MAC subheader and SuccessRAR, and
wherein the SuccessRAR has a fixed size and comprises:
a contention resolution identifier,
a timing advance command (TAC),
a cell radio network temporary identifier (C-RNTI),
a reserved bit, and
a configuration of an acknowledgement resource for transmission of an acknowledgment of receiving the second message.