The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 2026
Filed:
Jan. 15, 2022
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Thomas Chapman, Solna, SE;
Farshid Ghasemzadeh, Sollentuna, SE;
Fredrik Sundström, Sundbyberg, SE;
Yi-Ju Chen, Solna, SE;
Joakim Axmon, Limhamn, SE;
Ming Li, Stockholm, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A method performed by a user equipment, UE, includes obtaining a maximum timing advance (TA) for wireless communications to apply for a serving base station, BS, switching in a high speed train (HST) network. The method includes updating the TA for wireless communications according to TA commands as the UE proceeds along a track in the HST network. The method includes determining that the BS panel serving the UE has switched to a new BS panel along the track. The method includes responsive to determining that the BS panel serving the UE has switched to the new BS panel, setting the TA to a minimum TA for wireless communication or to the maximum TA for wireless communications based on a direction of travel of the HST with respect to the new BS panel.