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 affect the quality and capacity of the newly built network. However, it is difficult to solve the interference problem caused by network topology defects at the network operation stage

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