Multiplex communications – Communication over free space – Repeater
Reexamination Certificate
2011-04-19
2011-04-19
Chang, Kent (Department: 2617)
Multiplex communications
Communication over free space
Repeater
C370S329000, C455S450000
Reexamination Certificate
active
07929476
ABSTRACT:
The present invention relates to a packet access router and a ranging method using the same in a mobile communication system. In the mobile communication system to which the packet access router is introduced, a better initial access process and a periodic ranging process are performed so as to accurately transmit data to the access point irrespective of the condition of whether an access terminal is provided in the packet access router region or not. When a ranging code is received, it is accurately determined whether the ranging code is directly received from the access terminal or it is received through the packet access router, and a method for performing a ranging control on the access terminal and a packet access router when the ranging code is transmitted to the access point through the packet access router. Therefore, the coverage of the access point is increased and the data throughput is improved. Also, system performance can be enhanced through efficient power control on the access terminal provided out of the access point region.
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Kim Ju-Hee
Kim Kyung-Soo
Shin Shang-Lim
Chang Kent
Electronics and Telecommunications Research Institute
Hammonds Marcus
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