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2. 3GPP TR 25.913 v8.0.0, 3GPP TSG RAN, Requirements for Evolved UTRA (E-UTRA) and Evolved UTRAN (E-URTAN). (Release 8), Dec. 2008.
3. White Paper, The Mobile Broadband Evolution: 3GPP Release 8 and Beyond HSPA+, SAE/LTE and LTE-Advanced. 3G Americas, February 2009. Available: http://3gamericas.org/documents/3GPPRel-8Beyond021209.pdf .
4. FCC, Spectrum Policy Task Force. Rep. ET Docket no. 02-135, Nov. 2002.
5. FCC, Facilitating opportunities for flexible, efficient and reliable spectrum use employing cognitive radio technologies: notice of proposed rule making and order. FCC Document ET Docket No. 03-108, Dec. 2003.