NextgenerationLTE,LTE-AdvancedorLTERel-10isthenext创新.PDFVIP

4G mobile technologies 22 Next generation LTE, LTE-Advanced Next generation LTE, LTE-Advanced or LTE Rel-10 is the next step in radio access technology. St e fa n Pa r kva l l , a n de r S f u ru Sk Ä r, e r i k da h l m a n Whatever the name – next In October 2010, ITU completed the tial technology components for the LTE generation LTE, LTE-Advanced assessment of submissions for global evolution. Ericsson was very active in or LTE Rel-10 – the next step in 4G mobile wireless broadband technol- the 3GPP study, which was completed in LTE evolution allows operators ogy, LTE Rel-10 (submitted by 3GPP) was 2009 and formed the basis for the 3GPP to introduce new technologies one of two technologies accorded the Rel-10 work on LTE5. without putting existing invest- official designation of IMT-Advanced. ments at risk. This article provides a brief intro- LTE Rel-10 duction to IMT-Advanced, followed by LTE-Advanced is not a new radio access LTE radio access technology is continu- a description of the extensions to LTE scheme distinct from LTE, but simply the ously evolving to meet the requirements introduced as part of 3GPP Rel-10. It con- evolution of LTE, providing improved of regulators, operators and users. The cludes with system-level results that performance and service capabilities. first fully commercial and operational illustrate the ability of LTE Rel-10 to ful- LTE Re