claim: Johnny Van Zant always refused to become the lead vocalist for Lynyrd Skynyrd.
evidence: The Asia-Pacific Telecommunity -LRB- APT -RRB- band plan is a type of segmentation of the 698 -- 806 MHz band -LRB- usually referred to as the 700 MHz band -RRB- formalized by the APT in 2008-2010 and specially configured for the deployment of mobile broadband technologies -LRB- e.g. most notably Long Term Evolution , LTE -RRB- .. band plan. Bandplan. mobile broadband. mobile broadband. This segmentation exists in two variants , FDD and TDD , that have been standardized by the 3rd Generation Partnership Project -LRB- 3GPP -RRB- and recommended by the International Telecommunications Union -LRB- ITU -RRB- as segmentations A5 and A6 , respectively .. FDD. Frequency division duplexing. TDD. Time-division duplex. The APT band plan has been designed to enable the most efficient use of available spectrum .. band plan. Bandplan. spectrum. Radio spectrum. Therefore , this plan divides the band into contiguous blocks of frequencies that are as large as possible taking account of the need to avoid interference with services in other frequency bands .. As the result , the TDD option -LRB- segmentation A6 -RRB- includes 100 MHz of continuous spectrum , while the FDD option -LRB- segmentation A5 -RRB- comprises two large blocks , one of 45 MHz for uplink transmission -LRB- mobile to network -RRB- in the lower part of the band and the other also of 45 MHz for downlink transmission in the upper part .. FDD. Frequency division duplexing. TDD. Time-division duplex. spectrum. Radio spectrum. As defined in the standard , both FDD and TDD schemes for the 700 MHz band include guard bands of 5 MHz and 3 MHz at their lower and upper edges , respectively .. FDD. Frequency division duplexing. TDD. Time-division duplex. The FDD version also includes a center gap of 10 MHz .. FDD. Frequency division duplexing. The guardbands serve the purpose of mitigating interference with adjacent bands while the FDD center gap is required to avoid interference between uplink and downlink transmissions .. FDD. Frequency division duplexing. The two arrangements are shown graphically in figures 1 and 2 .. Existing 3GPP standards for the APT band plan are given below  :. band plan. Bandplan. Table 1 .. 3GPP standard bands for the APT segmentation of the 700 MHz band. Allocation of the 700 MHz band -LRB- that in many parts of the world is commonly referred to as the Digital Dividend -RRB- to mobile communications it is one of the key solutions for meeting the mobile data explosion challenge faced by the telecommunications industry and telecommunications regulators seeking additional spectrum for the deployment of new mobile broadband networks and capacity .. mobile broadband. mobile broadband. spectrum. Radio spectrum. Allocation. Frequency allocation. Digital Dividend. Digital dividend after digital television transition. mobile communications. Wireless network#Cellular network. As of today , the APT band plan is considered to be the most effective way to segment the 700 MHz band from the point of view of modern spectrum management .. band plan. Bandplan. spectrum. Radio spectrum. The superior spectral efficiency of this plan is explained further in this article .. Currently , the FDD configuration is the one which has been studied most widely and is much more popular across the world .. FDD. Frequency division duplexing. For this reason , the FDD APT band plan option is generally referred to as the APT band plan .. band plan. Bandplan. FDD. Frequency division duplexing