A Scheduling Method for Avoiding Interference

Abstract

The invention discloses a scheduling method used for preventing interferences. The scheduling method is characterized in that interference and noise power of each subcarrier of a system can be measured on each time domain symbol; the smoothing processing of the measurement result of the interference and noise power of each subcarrier can be carried out in the set time, and the smoothing result corresponding to each subcarrier can be acquired; the average smooth result of all of the subcarriers can be calculated according to the smoothing result of each subcarrier correspondingly in the set time; the strong interference subcarrier having the frequency domain interference characteristic can be selected from all of the subcarriers according to the relation between the smoothing result of each subcarrier and the average smoothing result; and the limited scheduling of the strong interference subcarrier having the frequency domain interference characteristic can be carried out. According to the invention, the business reliability can be improved.

Description

technical field [0001] The present application relates to communication technologies, and in particular to a scheduling method for avoiding interference. Background technique [0002] The air interface of the LTE system adopts OFDM multiple access technology, which can allocate resources to users in the frequency domain and time domain. In public network deployment, the frequency bands used by operators are generally purchased or issued by spectrum management agencies, so the possibility of interference from other systems is very small. And even if there is interference, it can basically be avoided by surveying before network construction and using static planning methods. [0003] When deploying an LTE private network broadband trunking communication system, the frequency band used may be shared by multiple systems, and the interference has certain dynamic characteristics. Therefore, it is impossible to use a simple static planning method to avoid interference before netwo...

AI Technical Summary

Problems solved by technology

[0003] When deploying an LTE private network broadband trunking communication system, the frequency band used may be shared by multiple systems, and the interference has certain dynamic characteristics, so it is impossible to use a simple static planning method to avoid interference before network construction

Therefore, in the private network deployment, it is usually impossible to guarantee that there will always be no interference from other communication systems within the planned system bandwidth like the public network

After the network is built, there may be interference from other systems. Furthermore, the interference may have certain frequency domain characteristics, and this frequency domain characteristic may also change with time. In this case, it is difficult to guarantee the network performance. reliability

[0004] In the current private network system, scenarios where there is interference from other systems are rarely considered. Therefore, a solution for dynamic interference avoidance is urgently needed to ensure the reliability of private network services under dynamic interference scenarios.

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