US 12,439,456 B2
Method for transmitting random access message and device
Xiaohang Chen, Guangdong (CN); and Xiaodong Shen, Guangdong (CN)
Assigned to VIVO MOBILE COMMUNICATION CO., LTD., Guangdong (CN)
Filed by VIVO MOBILE COMMUNICATION CO., LTD., Guangdong (CN)
Filed on Jul. 30, 2021, as Appl. No. 17/389,475.
Application 17/389,475 is a continuation of application No. PCT/CN2020/071731, filed on Jan. 13, 2020.
Claims priority of application No. 201910105105.6 (CN), filed on Feb. 1, 2019.
Prior Publication US 2021/0360707 A1, Nov. 18, 2021
Int. Cl. H04W 74/08 (2024.01); H04L 5/14 (2006.01); H04W 56/00 (2009.01); H04W 74/0833 (2024.01)
CPC H04W 74/0841 (2013.01) [H04L 5/1469 (2013.01); H04W 56/001 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for transmitting a random access message, executed by a terminal device and comprising:
determining a valid transmission occasion from transmission occasions of a random access message, wherein the random access message corresponds to at least one of physical random access channel (PRACH) or physical uplink shared channel (PUSCH); and
transmitting the random access message on the valid transmission occasion;
wherein the transmission occasion corresponds to a PRACH transmission occasion and a PUSCH transmission occasion;
wherein the determining a valid transmission occasion from transmission occasions of a random access message comprises:
determining the valid transmission occasion from the transmission occasions of the random access message based on a slot format indicated in first configuration information, or a slot format indicated in second configuration information, wherein
the first configuration information comprises cell-specific time division duplex (TDD) configuration information; and
the second configuration information comprises UE-specific TDD configuration information;
wherein the determining a valid transmission occasion from transmission occasions of a random access message comprises:
when a transmission occasion of the random access message meets the following preset conditions, determining that the transmission occasion is a valid transmission occasion, wherein
the preset conditions comprise:
in one slot, the transmission occasion does not precede an SSB occasion;
a time gap between the transmission occasion and a first preset occasion is greater than or equal to a first preset value, wherein the first preset occasion is a time domain location of a latest downlink symbol before the transmission occasion; and
a time gap between the transmission occasion and a second preset occasion is greater than or equal to a first preset value, wherein the second preset occasion is a latest SSB occasion before the transmission occasion.