Ranging method for mobile communication system based on...

Details Ranging method for mobile communication system based on... Ranging method for mobile communication system based on...

2007-12-18

2007-12-18

Pham, Chi (Department: 2616)

Multiplex communications

Generalized orthogonal or special mathematical techniques

Quadrature carriers

C370S335000, C370S342000

Reexamination Certificate

active

10413010

ABSTRACT:
Disclosed herein is a ranging method for a mobile communication system based on an OFDMA (Orthogonal Frequency Division Multiple Access) scheme. In the communication system for classifying a ranging procedure between a transmission side and reception sides into an initial ranging process, a bandwidth request ranging process, and a periodic ranging process, the ranging method includes the steps of determining the number of initial RCs(ranging codes) for the initial ranging process, the number of bandwidth request RCs for the bandwidth request ranging process, and the number of periodic RCs for the periodic ranging process, determining a backoff value of the periodic RCs according to the number of the periodic RCs, and sending the initial RCs, the bandwidth request RCs, the periodic RCs, and the backoff value of the periodic RCs to the reception sides.

REFERENCES:
patent: 5694389 (1997-12-01), Seki et al.
patent: 6035003 (2000-03-01), Park et al.
patent: 6215792 (2001-04-01), Abi-Nassif
patent: 6628697 (2003-09-01), Douglas et al.
patent: 198 45 057 (1998-09-01), None
patent: 2 330 729 (1999-04-01), None
patent: WO 01/05051 (2001-01-01), None
Preliminary Search Report dated Dec. 12, 2003 issued in a counterpart application, namely Appln. No. 0304884000.
Markarian et al., OFDM Mode for the IEEE 802.16a PHY Draft Standard, IEEE 802.16 Broadband Wireless Access Working Group, May 17, 2001, pp. 41-42.

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