NTS Technology introduced a new generation MCPA


Signal in the city village, road and railway, township villages, sea often "missing", the blind coverage of these signals has become the main task of the communications operators, and the repeater due to the need for new frequency and transmission, low overall cost And other advantages to become the first choice for operators.

However, the repeater also exists because of the relatively backward technology caused by the intermodulation caused by interference, power amplifier efficiency is low, energy consumption, and reliability is not enough and so on, the market value is being eroded by the base station. In recent years, focusing on the RF technology industry, NTS through the base station of the latest high-performance amplifier, digital IF technology to build base station-level high-end repeater, such as multi-carrier amplifier, enclave, to help operators to enhance the base station to send signals, Improve the base station to receive the sensitivity, expand the effective coverage of the base station, improve the network communication quality.

According to reports, GSM digital multi-carrier base station extension system (hereinafter referred to as: MCPA) is a multi-carrier base station amplifier in the low noise bypass device and technology, mainly in the base station transceiver (BTS) and mobile (MS) Provides relay extension coverage. At the same time, the device has an automatic bypass function, in the power failure, to ensure that the base station radio frequency signal is not interrupted; this way, can improve the quality of user calls, reduce dropped call rate, improve the base station KPI indicators.

According to the core technology MCPA multi-carrier base station amplifier research and development experts Vito introduced, MCPA with high power, single antenna up to 250W, dual antenna up to 400W. Higher than the nominal power 1dB (20%), coverage increased by 20%. High power makes the device can effectively improve the base station signal field strength, make up the highway railway strip area base station and base station between the coverage blind spot.

The new generation MCPA uses digital circuits to replace 60% of the analog RF circuit and high-power components in the feedforward. The production eliminates the need for manual intervention (manual intervention and manual intervention), resulting in a 80% reduction in production time. Core-pass products with high efficiency and low heat consumption (relative to 50% increase), but also to ensure that the product under high-power long-term reliability. At the same time, the tower put and spare battery size and weight is also greatly reduced. This reduces the difficulty of installing the operator's tower, reducing the operator's construction cycle and reducing the cost of electricity. The annual power consumption is reduced by 50% compared with the feedforward MCPA and 80% less than the SCPA. For the operators in the densely populated, lack of space to cover the gray area of the city to install, save the cost of operation possible.

MCPA uses the latest generation of F_DPD technology at the base station level, real-time processing with digital firmware to replace the digital software processor in the previous generation DPD, linearized adaptive speed, from the previous second, to less than microseconds , One million times to enhance. At the same time, full support for dynamic frequency hopping and power jitter. This makes the reliability and stability of the base station significantly improved.

Improve the quality of highway and railway calls

Roads and railways are band covered, the network coverage is not comprehensive, coupled with the highway users in high-speed movement of the call state, the signal coverage will lead to low call quality, which has become a problem for operators headaches.

It is difficult to crack the densely populated area

There are many signals in the city covered with gray areas, such as the city village, building-intensive areas. If the use of traditional signal coverage, these areas there are difficulties in the selection of base stations, population density will lead to relatively high project costs, the construction period will be lengthened.

Expand the coverage area of the sea base station

Sea, inland waterway is irregular and narrow areas, poor weather conditions. Sea area coverage Due to the reflection of sea level and the absorption of seawater, the attenuation of the signal is very large, greatly reducing the coverage of the base station. And by the geographical environment constraints, base station location difficult.

It is understood that the installation of equipment, the downstream channel can be from the base station to amplify the downlink signal to increase the downlink coverage of the base station to improve the coverage area of the signal field strength to resist sea level mirror reflection and sea water on the signal. Base station signal coverage expanded, the corresponding reduction in the number of sites to overcome the difficulties of site selection.

To overcome the aging of the base station

With the increasing number of users, the district must be expanded to meet the increased demand for traffic. While the base station expansion due to road loss will reduce the original base station coverage area. When the base station is running for several years, the actual coverage may decrease due to a variety of reasons that the transmit power is less than the design or initial value.

In the case of the base station, the output power of the base station is reduced, the antenna gain is changed, the influence of the feeder is aged, the influence of the diversity is received, and the signal is disturbed due to the change of the wireless communication environment.

In this case, the core technology is installed in the leading level of MCPA, with a strong digital compensation function, long-term reliable to ensure that the coverage area unchanged.

One mind a strict three high three more

Over the years, the core has been committed to high-end customers to do base station products - PA and RRU and now the repeater MCPA and enclave. As the focus on the secondary market, with more than the repeater more stringent base station-level reliability control standards, production of high linearity, high efficiency, high reliability "three high" base station products, and have "more than three" Power and more features of the system.

It is based on this one-hearted three high three,NTS achieves the "performance indicators" and "quality" , effectively improve the value of operators for the operator to optimize the base station to improve the base station signal coverage and quality, to overcome the site Difficult to provide an efficient solution.