The invention discloses an ultra-
wideband multi-
system combining platform containing an NR4.9 G
frequency band. The combining platform comprises a front-stage combining module, a higher
harmonic suppression filtering module and a final-stage combining module, wherein the pre-stage combining module is a common multi-
system combining platform and covers 2G, 3G and 4G
system signals of mobile communication, and the
frequency band is 698-2400HMz; the higher
harmonic suppression filtering module is used for
frequency selection of the working
frequency band of 698-2400MHz of the preceding-stage combining system and suppression of higher
harmonics and clutters within the frequency band bandwidth of 2500-5000MHz; the final-stage combining module adopts a hierarchical combining design, NR2.6 G, NR3.5 G and a higher
harmonic suppression filtering unit are used as a first stage, NR4.9 G is used as a second stage, the working frequency of the final-stage combining module covers 2515-2515-4960 MHz, and the final-stage combining module comprises a mobile NR4.9 G system. The system has the advantages that existing 2G, 3G, 4G and 5G system frequency bands and an NR4.9G system are integrated and applied to
wireless public network coverage, and co-construction and sharing of existing resources within the working frequency band of 698-4960 MHz are achieved.