LTE系统中上行数据发送过程研究与实现

在对长期演进(1ong term evolution,LTE)上行数据发送机制详细分析的基础上,针对上行数据发送过程的实现提出一种无差错上行混合自动重传请求(hybrid automatic repeat request,HARQ)选择方案,按照协议给出的反馈与授权的延迟的时隙关系,在设计中采用反馈与授权联合判断的方案...

Research and realization of uplink data transmission in LTE

This paper introduces the mechanism of uplink data transmission in LTE system in detail. And it provides an error-free HARQ solution to realize the uplink data transmission process. The feedback and the grant are corresponding. According to the relations between feedback and grant in the protocol, we adopt associated decision of feedback and grant in the design so as to complete the correspondence between them. In view of the logical channels multiplexing and uplink data assembly procedure in the LTE technique, this essay designed a modified method, which can be used in realization and assembling uplink MAC PDU according practical data from RLC. In the end, according to the protocol test method, we test the code of this part, in which we enable the data with concrete code. Through the test we can validate the correction of solutions for the realization of uplink data transmission, allocation of grant and assembling of data in LTE system.