|
Abstract—Universal Mobile Telecommunications Systems(UMTS)
consist of two modes: UTRA-TDD and UTRA-FDD. The spectrum
allocation is in such a way that both modes have an adjacent carrier
at 1920MHz. Due to imperfection of transmitter and receiver
hardware, Adjacent Channel Interference(ACI) can not be
completely avoided when both modes operate in 1920MHz. In this
paper, co-existence of UTRA-TDD low chip rate(TD-SCDMA) and
UTRA-FDD(WCDMA) system is investigated; We use theoretical
and simulation method respectively to investigate the impact of TDSCDMA
and WCDMA when both operate in 1920MHz. In
simulation method, we also research the influence of smart antenna
which deployed in TD-SCDMA system. Capacity loss is used to
access the Adjacent Channel Interference from TD-SCDMA base
station(BS) to WCMA BS, then detailed theoretical and simulation
results are presented, we give some useful suggestions for the
deployment of system based on our results
Keywords—TD-SCDMA, WCDMA, ACIR, Capacity Loss, Smart
Antenna.
|
关注楼主