US 12,004,230 B2
Random access method and related device
Yumin Wu, Chang'an Dongguan (CN); and Yue Ma, Chang'an Dongguan (CN)
Assigned to VIVO MOBILE COMMUNICATION CO., LTD., Guangdong (CN)
Filed by VIVO MOBILE COMMUNICATION CO., LTD., Chang'an Dongguan (CN)
Filed on Jan. 26, 2021, as Appl. No. 17/158,335.
Application 17/158,335 is a continuation of application No. PCT/CN2019/097862, filed on Jul. 26, 2019.
Claims priority of application No. 201810835735.4 (CN), filed on Jul. 26, 2018.
Prior Publication US 2021/0153263 A1, May 20, 2021
Int. Cl. H04W 74/0833 (2024.01); H04L 41/0803 (2022.01); H04W 72/21 (2023.01)
CPC H04W 74/0841 (2013.01) [H04L 41/0803 (2013.01); H04W 72/21 (2023.01)] 16 Claims
OG exemplary drawing
 
1. A random access method, applied to a terminal device and comprising:
transmitting a first message to a network side device;
receiving a response message that is transmitted by the network side device and that comprises target configuration information, wherein, there is an association relationship between at least some configuration information in the target configuration information and an association parameter, and the association parameter is a parameter that can be obtained by the terminal device before the terminal device receives the response message; and
obtaining, based on the association relationship, configuration information that is associated with a target association parameter of the terminal device from the target configuration information;
wherein the first message is an Msg1 in a 2-step random access procedure, and the response message is an Msg2 in the 2-step random access procedure;
the target configuration information comprises uplink resource allocation information used to indicate a transmission resource for a feedback message of the Msg2;
wherein after receiving the response message that is transmitted by the network side device and that comprises target configuration information, the method further comprises:
when successfully receiving the Msg2, the terminal device transmits the feedback message of the Msg2 to the network side device;
wherein the feedback message comprises a Hybrid Automatic Repeat Request acknowledgment (HARQ ACK).