Title:
METHOD AND APPARATUS OF OPERATING MULTIPLE TIME ALIGNMENT TIMERS IN MOBILE COMMUNICATION SYSTEM SUPPORTING CARRIER AGGREGATION
Document Type and Number:
WIPO Patent Application WO/2012/138132
Kind Code:
A2
Abstract:
A method of operating multiple time alignment timers (TimeAlignmentTimer) is provided for facilitating communication between and evolved Node B (eNB) and a User Equipment (UE) in a Long Term Evolution (LTE) system supporting multiple carriers. The method includes starting a first TAT of a first group including the primary cell, starting a second TAT when Timing Advance (TA) information on a second group not including the primary cell; and determining transmission of at least one of a Hybrid Automatic Repeat Request Acknowledgement/Negative-acknowledgement (HARQ ACK/NACK), a physical uplink control channel, and a sounding reference signal according to a start and an expiration of at least one of the first and second TATs.
Inventors:
JANG JAE HYUK (KR)
JEONG KYEONG IN (KR)
JEONG KYEONG IN (KR)
Application Number:
PCT/KR2012/002549
Publication Date:
October 11, 2012
Filing Date:
April 05, 2012
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
JANG JAE HYUK (KR)
JEONG KYEONG IN (KR)
JANG JAE HYUK (KR)
JEONG KYEONG IN (KR)
International Classes:
H04W56/00; H04J11/00; H04L1/18
Foreign References:
| KR100917832B1 | 2009-09-18 | |||
| KR20090078866A | 2009-07-21 | |||
| KR20090076805A | 2009-07-13 |
Other References:
See references of EP 2695456A4
Attorney, Agent or Firm:
YOON, Dong Yol (3rd Fl Ace Highend Tower-5,505-18 Gasan-dong, Geumcheon-gu, Seoul 153-803, KR)
Download PDF:
Claims:
Previous Patent: PATTERN-PRINTING APPARATUS
Next Patent: TERMINAL FOR RECORDING AND TRANSMITTING IMAGES THROUGH A NETWORK
Next Patent: TERMINAL FOR RECORDING AND TRANSMITTING IMAGES THROUGH A NETWORK