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Registered TERMINAL IN WIRELESS COMMUNICATION SYSTEM AND RANGING METHOD FOR DYNAMICALLY CHANGING RANGING PERIOD THEREOF
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TERMINAL IN WIRELESS COMMUNICATION SYSTEM AND RANGING METHOD FOR DYNAMICALLY CHANGING RANGING PERIOD THEREOF
- Inventors
- Lee Namsuk, Park Nam Hoon
- Application No.
- 11720923 (2005.09.07)
- Publication No.
- 20100027462 (2010.02.04)
- Registration No.
- 8027368 (2011.09.27)
- Country
- UNITED STATES
- Abstract
- A ranging method of an access terminal that requests a ranging to an access point through a wireless network and performs the ranging, the ranging method including a) initializing a ranging period, b) setting a timer with the ranging period and starting the timer, c) requesting a ranging by transmitting a given ranging code to the access point based on radio resource allocation information provided by the access point, d) receiving a ranging response message from the access point, and controlling transmission power, timing, and frequency offset of an access terminal according to transmission parameters included in the received ranging response message, e) estimating a downlink channel condition through which a signal from the access point is transmitted, f) resetting the ranging period according to the estimated downlink channel condition, and g) iteratively performing b) to f) according to the reset ranging period.
- KSP Keywords
- Access point, Communication system, Wireless communication system, Wireless network, channel condition, frequency offset, radio resource, radio resource allocation, resource allocation(RA), transmission parameters, transmission power, wireless communication
- Family
| Status | Patent | Country | KIPRIS |
|---|---|---|---|
| Registered | 이동통신 시스템의 단말기 및 그의 동적으로 주기가 가변하는 레인징 방법 | KOREA | KIPRIS |