面向5G的非正交多址专利技术分析

Analysis of Non-Orthogonal Multiple Access Patent Technology for 5G

为满足5G系统对高速率、低延迟的需求,非正交多址接入技术被视为在频谱资源受限的情况下5G系统在4G系统的OFDMA之后的发展趋势和突破方向。本文检索了非正交多址技术相关专利,从全球专利申请趋势、技术主题和申请人分布对相关专利申请进行了统计,并重点对NOMA和SCMA技术主题进行了分析,梳理了这两个技术主题的技术演进路线。

In order to meet the high-speed and low-latency requirements of 5G,non-orthogonal multiple access technology is regarded as the development trend and breakthrough direction of 5G after OFDMA of 4G in the case of limited spectrum resources.The patents related to non-orthogonal multiple access are searched in this paper.Then,they are counted in three dimensions of global patent application trends,technical topics and applicant distribution.At last,the patents on NOMA and SCMA technical topics are focused to obtain the corresponding technology evolution route.