Abstract
Based on the analysis of 4G communication network structure and key technologies, this paper expounds the 4 (6) communication structure, and studies the basic characteristics of 4G communication network, including: high speed, large capacity, the coexistence of different types of users, strong compatibility and flexibility, and the integration of various services . Combined with these contents, the key technologies of 4G communication network are discussed, including communication network modulation and coding technology, orthogonal frequency division multiplexing technology, software infinite power technology and multi-user detection technology.
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