US Patent Application No: 2012/0087,328

Number of patents in Portfolio can not be more than 2000

METHOD OF PERFORMING UPLINK SYNCHRONIZATION IN WIRELESS COMMUNICATION SYSTEM

ALSO PUBLISHED AS: 8649366
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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
LG ELECTRONICS INC.SEOUL, KR15835

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chun, Sung Duck Anyang, KR 736 3246
Lee, Young Dae Kyoungki-do, KR 779 3489
Park, Sung Jun - 640 1884
Yi, Seung June Seoul, KR 733 3048

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Patent Info (Count) # Cites Year
 
SHARP KABUSHIKI KAISHA (3)
* 8,396,032 Base station device, mobile station device, communication system and communication method 0 2008
* 8,688,137 Communication apparatus and communication method 0 2008
* 2010/0173,638 COMMUNICATION APPARATUS AND COMMUNICATION METHOD 17 2008
 
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) (1)
8,717,996 Uplink scrambling during random access 0 2012
 
BLACKBERRY LIMITED (1)
* 8,976,780 Uplink timing maintenance upon time alignment timer expiry 0 2013
* Cited By Examiner