Active antenna, carrier aggregation method and system

Abstract

The present invention provides an active antenna, and a carrier aggregation method and system. The system comprises a passive antenna array and an active antenna array. The passive antenna array is configured to receive the first frequency band emission data transmitted by a remote radio unit, emit the first frequency band emission data outwards, receive the first frequency band receiving data, transmit the first frequency band receiving data to the remote radio unit, wherein the remote radio unit is connected with a baseband processing unit to realize the transmission of the first frequency band data between the active antenna and the baseband processing unit; and the active antenna array is configured to receive the second frequency band emission data transmitted by the baseband processing unit and emit the second frequency band emission data outwards, receive the receiving data of the first frequency band and the second frequency band and transmit the receiving data to the baseband processing unit. The active antenna is configure to directly replace the current passive antenna to simplify the step of upgrading the current network to the carrier aggregation network so as to reduce the construction difficulty and the networking cost and effectively improve the capacity and the peak rate of the LTE system.

Description

technical field [0001] The present invention relates to the technical field of LTE (Long Term Evolution, long-term evolution), in particular to an active antenna, carrier aggregation method and system. Background technique [0002] At present, LTE networks have been widely deployed around the world. Compared with 3G networks, the speed and capacity of 4G networks have been greatly improved. However, with the development of the mobile Internet, the demand for data services is growing explosively, which puts forward new and higher requirements for network capacity, bandwidth and peak rate. Carrier aggregation is one of the most effective means to deal with the explosive growth of data services by increasing network capacity through spectrum expansion, and has attracted widespread attention. [0003] Carrier aggregation is the core technology of LTE-A (LTE-Advanced, evolution of LTE), which can combine two or more carriers in the same or different frequency bands into one chan...

AI Technical Summary

Problems solved by technology

Due to factors such as multi-operator co-construction and sharing, 2G / 3G / 4G multi-network coexistence and other factors, the sky space of most sites is very limited at present and it is impossible to add poles. Therefore, this upgrade method is greatly restricted

[0007] (2) Due to the obstruction of residents and other factors, the addition of antenna poles will bring great difficulties to the construction

[0009] (1) The newly added external combiner requires customization, complex structure, and high environmental adaptability requirements, resulting in high design and production costs and high prices, which greatly increase the cost of network construction

[0010] (2) The newly added external combiner has a large number of ports, resulting in easy connection errors during construction, greatly increasing system failure points, and greatly increasing construction time and construction costs

[0011] (3) The newly added external combiner is a passive device, which cannot be monitored in real time by the system and becomes a blind spot of the system. Once a fault occurs, it will be difficult to find it, which will bring great difficulties to the later network maintenance.

[0012] (4) The current network frequency band and the newly added frequency band cannot realize independent ESC control, and cannot realize independent optimization of the two frequency bands

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