US8107456B2

5G,4G

Title

Method of performing uplink synchronization in wireless communication system

Application Number:

US20080141772

Publication Date:

31-01-2012

Current Assignee:

LG

Family ID:

Application Date:

18-06-2008

Publication Country:

US

Priority Date:

18-06-2007

Declaring Company:

LG

Abstract  Abstract

A method of performing uplink synchronization in a wireless communication system includes transmitting a random access preamble which is randomly selected from a set of random access preambles receiving a random access response the random access response comprising a random access preamble identifier corresponding to the random access preamble and a time alignment value for uplink synchronization starting a time alignment timer after applying the time alignment value starting a contention resolution timer after receiving the random access response wherein contention resolution is not successful when the contention resolution timer is expired and stopping the time alignment timer when the contention resolution timer is expired.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent

Implicitly disclosed patent

Basis patent

Family member