US 12,144,033 B2
Random access method and device, user equipment and computer-readable storage medium
Xiaowei Jiang, Beijing (CN)
Assigned to BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing (CN)
Filed by BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing (CN)
Filed on Mar. 31, 2023, as Appl. No. 18/193,633.
Application 18/193,633 is a continuation of application No. 16/649,152, granted, now 11,641,674, previously published as PCT/CN2017/103220, filed on Sep. 25, 2017.
Prior Publication US 2023/0247681 A1, Aug. 3, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 74/08 (2024.01); H04W 52/36 (2009.01); H04W 74/02 (2009.01); H04W 74/0833 (2024.01)
CPC H04W 74/0833 (2013.01) [H04W 52/367 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A random access method, comprising:
initiating, by user equipment (UE), a random access based on at least one of: initial access, uplink synchronization loss, or reconstruction;
selecting, by the UE, a beam from multiple beams successively to transmit a preamble;
re-selecting, by the UE, a beam from the multiple beams in a case that the UE needs to re-transmit the preamble;
determining, by the UE, whether a currently selected beam for transmitting the preamble is identical to the multiple beams previously selected for transmitting the preamble;
transmitting, by the UE, the preamble at a boosted pilot transmit power in response to determining that the currently selected beam is identical to one of the multiple beams and a value of a pilot power boost counter does not reach a maximum value.