LTE's worldwide influence extends to all global regions. There were 263 commercial LTE networks since January 2014 and it has been estimated that by the end of 2014, there will be a total of 350 commercial LTE networks. Table 1 lists the available spectrum of LTE networks in different regions.
Meanwhile, to meet requirements for the coexistence between LTE and GSM/UMTS networks , each site requires multiple bands for coverage. Based on the traditional antenna deployment solution, new antennas need to be added for newly added bands. However, it is difficult to add antennas due to the following reasons:
To meet the challenges, operators need multi-band, and ultra-broadband antennas. Early published data by ABI Research shows that in the next five years, shipments of multi-band antennas will be rapidly grown, from approximately 30% in 2014 to 70% in 2018, while shipments of single-band antennas will decline by at least 60% (see figure 1).
Huawei's full series LTE antennas support multi-band designs, including dual-band, triple-band, quad-band, and penta-band. Meanwhile, considering the dispersion of LTE frequency, Huawei's series of LTE ultra-broadband antennas also support the industry's widest frequency range. Low frequency ultra-broadband antennas support 690 MHz to 960 MHz bands, covering all the mainstream LTE 700/800/900 MHz bands. Huawei's high-frequency, ultrabroadband antennas support 1710 MHz to 2690 MHz bands, covering mainstream LTE 1800/1900/2100/2300/2600 MHz bands.