一种面向未来多址接入的前导序列设计方法

• Format: Patent
• Language: Chinese
• Published: 23.09.2025
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

本发明属于无线通信技术领域，具体是一种面向未来多址接入的前导序列设计方法。本发明具体包括：根据潜在用户规模确定信源编码所需的比特数；利用循环冗余校验和FEC编码方案做信道编码，输出经过FEC编码的码字；将FEC编码之后的码字经过交织存储器，用来对抗信道深衰落；建立码字到稀疏调制符号的映射关系，再通过稀疏调制将码字映射为前导序列，该序列满足伯努利特性；本发明设计的前导序列可以有效降低基站对活跃用户检测的漏检概率和误警概率，并且可以服务的潜在用户规模可以达到107数量级甚至更多。 The invention belongs to the technical field of wireless communication, and particularly relates to a leader sequence design method for future multiple access. The method specifically comprises the following steps: determining a bit number required by source coding according to a potential user scale; channel coding is carried out by utilizing cyclic redundancy check and an FEC coding scheme, and code words subjected to FEC coding are output; code words after FEC coding pass through an interleaving memory and are used for confronting channel deep fading. Establishing a mapping relation from the code word to a sparse modulation symbol, and mapping the code word into a leader sequence through sparse modulation, the sequence satisfying Bernoulli characteristics; the preamble