Patent · US Active

Direct SCELL activation during handover

US12052621B2 · kind B2 · utility

2Cited by

0References

13Claims

0Family size

Assignee

Apple Inc. · US

Inventors

Jie Cui · San Jose, US
Dawei Zhang · Saratoga, US
Fangli Xu · Beijing, CN
Haitong Sun · Cupertino, US
Hong He · Sunnyvale, US
Huaning Niu · San Jose, US
Manasa Raghavan · Sunnyvale, US
Qiming Li · Beijing, CN
Xiang Chen · Campbell, US
Yang Tang · Pleasanton, US

Key dates

Filing date	Jan 15, 2021
Grant date	Jul 30, 2024
Priority date	—
Expiry date	Mar 4, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH04W76/15
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Provided is a method for a user equipment (UE), that includes: obtaining, from a source cell, a handover command for handover from the source cell to a target cell, the handover command including activation indication for an activation of a secondary cell (SCell) of the target cell; generating a first message for transmission to the target cell, wherein the first message is used for initiating a random access procedure; obtaining a second message from the target cell in response to the first message, wherein the second message comprises a timing advance (TA) command.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.