摘要
提出了一种减小TDD(时分双工)载波聚合系统下行Hybrid Automatic Repeat Request(HARQ)反馈时延的改进方法,基站通过比较当前成员载波和主服务小区的下行HARQ往返时延来决定是否分配PUCCH资源给新的成员载波。经过性能分析表明,使用这种方法后,TDD载波聚合系统的下行HARQ反馈往返时延明显减小。
This paper proposes a decreasing TDD (time division duplex) carrier aggregation system downlink Hybrid Automatic Repeat Request (HARQ) feedback delay method. By comparing the current members of the carrier and the main serving cell down- link HARQ round trip delay ,eNB decides whether to allocate resources to the new member PUCCH carrier. The analysis shows that,using this method,the TDD carrier aggregation system downlink HARQ feedback delay decreases obviously.
出处
《电子技术应用》
北大核心
2015年第5期98-100,104,共4页
Application of Electronic Technique
基金
国家科技重大专项(2011ZX03001-003-01)
重庆邮电大学青年科学基金工程(A2012-89)
关键词
载波聚合
上行控制信道
混合自动重传请求
低时延
carrier aggregation
uplink control channel
hybrid automatic repeat request
low delay