Method and device for evaluating interference of multi-carrier base station transmitter to terminal

Abstract

The invention provides a method for evaluating the interference of multi-carrier base station transmitters to a terminal, which is used for a GSM multi-RRU system. The method comprises the following steps: evaluating miscellaneous interference, demodulation interference and broadband noise which are generated by each multi-carrier base station transmitter; evaluating the interference of each multi-carrier base station transmitter to a terminal according to the miscellaneous interference, the demodulation interference and the broadband noise; and evaluating the interference of all multi-carrier base station transmitters to the terminal according to the interference of each multi-carrier base station transmitter to the terminal. The invention also provides a device for evaluating the interference of multi-carrier base station transmitters to a terminal, which is used for a GSM multi-RRU system. The invention can reasonably evaluate the influence of the interference to system capacity and coverage, directly guide the interference evaluation and test of an MCBTS system and have high application value in actual operation.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a method and device for evaluating interference from a multi-carrier base station transmitter to a terminal in a GSM multi-RRU system. Background technique [0002] In the GSM (Global System of Mobile communications, Global System for Mobile Communications) multi-RRU (Regenerative Repeater Unit, regenerative repeater unit, also known as radio remote) system, each RRU can use MCBTS (MultiCarrier Base Transceiver Station, multiple Carrier Base Transceiver Station), so several GSM carrier frequencies can be sent simultaneously under each RRU. This kind of hardware sharing can greatly reduce the equipment cost of the BTS system. [0003] For the transmitting end of a GSM multi-carrier base station, the interference between TRXs of different carriers mainly considers spurious interference, intermodulation interference and broadband noise. [0004] Spurious interference (Spurious...

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Problems solved by technology

[0010] The present invention aims to provide a method and device for evaluating interference from multi-carrier base station transmitters to terminals in a GSM multi-RRU system, so as to solve the problem that it is impossible to comprehensively evaluate all interferences from multi-carrier base station transmitters to terminals in a GSM multi-RRU system question

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