Method, apparatus and system for dividing cofrequency interference protection band

Abstract

The invention, which relates to the field of wireless communication, discloses a method, apparatus and system for dividing a cofrequency interference protection band. The method comprises: a plurality of base stations are classified into re-farming-region base stations and non-re-farming-region base stations; measurement results of pilot-frequency signal measurement on signals of deployed networks of the non-re-farming-region base stations by terminals of a whole network under the re-farming-region base stations are obtained, wherein the signals of the deployed networks of the non-re-farming-region base stations have the same frequencies as those of re-farming networks of the re-farming-region base stations and the signals of the deployed networks of the non-re-farming-region base stations and the signals of the deployed networks of the re-farming-region base stations are in a pilot-frequency state; and according to a statistic situation of the measurement results of the terminals of the whole network, base stations with the pilot-frequency interference larger than a preset degree among the re-farming-region base stations are determined as non-re-farming cofrequency interference protection band base stations. According to the cofrequency interference protection band dividing method realized based on pilot-frequency measurement information reported by whole-network terminal users, the potential cofrequency interference area is reflected accurately; and while the network topological structure design is carried out during the network planning period, the cofrequency interference problem is solved.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method, device and system for dividing co-channel interference protection bands. Background technique [0002] In the past two decades, the mobile network has developed rapidly, with an average update every 5-10 years. When the mobile network is updated, operators usually have to re-deploy two standard networks on the same spectrum resource, such as deploying a CDMA network at the same time. and LTE network. The migration of users and services requires a transition period. Therefore, operators usually deploy mobile networks of different standards in the same frequency band and sub-regions. However, this will cause the problem of co-channel interference between networks of different standards in different regions. The schematic diagram of co-channel interference is as follows figure 1 shown. [0003] If this interference problem cannot be solved at the network pl...

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Problems solved by technology

[0003] If this interference problem cannot be solved at the network planning stage, it is likely to cause a large number of complaints from existing network users and seriously aff

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