Baseband remote processing method and system thereof

Abstract

The invention discloses a baseband remote processing method and a system thereof. The method comprises the following steps: setting a covering radius scope of a target area; according to a corresponding relation of the set covering radius and signal transmission time, acquiring the signal transmission time corresponding to the maximum covering radius in the covering radius scope; setting a guard period (GP) of a remote radio unit (RRU) according to the signal transmission time corresponding to the maximum covering radius. According to the invention, the GP of the RRU is not the GP which is provided by a standard and the GP is set according to the maximum covering radius of the actual target area. A time length of the GP which is set according to the maximum covering radius of the actual target area is usually shorter than the time length of the GP which is provided by the standard. Therefore, by using the method and the system of the invention, through shortening the time length of the GP of the RRU, a baseband remote distance can be effectively increased so as to enlarge a covering scope of a distributed base station.

Description

technical field [0001] The present invention relates to the field of distributed base stations, in particular to a processing method and system for remote baseband. Background technique [0002] The third-generation mobile communication network uses a large number of distributed base stations. The distributed base station divides the traditional macro base station equipment into two functional modules according to their functions. Among them, the baseband, master control, transmission, clock and other functions of the base station are integrated into a module called the base band unit (BBU). , The BBU is small in size and flexible in installation location; the transceiver, power amplifier, etc. are integrated into another module called Remote Radio Unit (RRU), and the RRU is installed at the antenna end. Optical fibers are used to transmit signals between the BBU and the RRU. During network deployment, the BBU, core network and wireless network control equipment are centra...

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Problems solved by technology

There will be a transmission delay when the signal is transmitted over a long distance. When the baseband is extended over a large distance, the uplink and downlink data will be aliased at the BBU due to the signal transmission delay. At present, the method of compressing the data processing time is mainly used to overcome the uplink and downlink data. The problem of aliasing, however, the compression space of data processing time is limited, therefore, the baseband is limited to extend the distance, thus limiting the coverage of distributed base stations

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