Registered
RANDOM ACCESS METHOD AND RANDOM ACCESS CHANNEL STRUCTURE IN MOBILE COMMUNICATION SYSTEM HAVING LARGE CELL RADIUS
- Inventors
-
Kim Hee Wook, Ku Bon Jun, Do-Seob Ahn, Kang Kunseok
- Application No.
-
14399903 (2012.12.10)
- Publication No.
-
20150146631 (2015.05.28)
- Registration No.
- 9538554 (2017.01.03)
- Country
- UNITED STATES
- Project Code
-
12PR4500, Optimized utilization technology development of 2.1 GHz satellite frequency band for mobile communications,
Ku Bon Jun
- Abstract
- A random access method in a mobile communication system, the random access method for supporting random access with a cell size of about 100 kilometers (km) or more and a power limited terminal, and a preamble structure thereof are provided. While a conventional long term evolution (LTE) random access preamble sequence is reused, a difference in a round-trip delay time between terminals in a large cell area may be compensated. Additionally, since higher power transmission is achieved per bandwidth, a higher link margin may be secured. Also, compatibility with resource scheduling of the conventional LTE may be maintained. Random access may be supported in a large cell, and a preamble structure of a satellite mobile communication may be implemented based on terrestrial LTE.