Patent · US Active

Random access method and apparatus based on multiple uplink timing advances

US9883534B2 · kind B2 · utility

1Cited by

1References

11Claims

0Family size

Assignee

CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY · CN

Inventors

Li Chen · Petaluma, US
Fangli Xu · Beijing, CN
Yali Zhao · Beijing, CN
Jiamin Liu · Beijing, CN

Key dates

Filing date	Feb 17, 2012
Grant date	Jan 30, 2018
Priority date	—
Expiry date	Mar 3, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04W74/0838
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Disclosed are a random access method and apparatus based on multiple uplink timing advances. The method includes: when acquiring that a user equipment has multiple uplink timing advances, initiating, by a network side, for the user equipment a random access on a designated carrier of a secondary cell. According to the examples, random access in the SCell can be realized in scenarios that multi-TA is maintained.

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