| 摘要: |
| 提出了一种新的基于协作多点传输和接收（CoMP）技术的多发随机接入流程，并根据
随机接入的目的和业务类型设计了接入优先级，在此基础上设计了一种新的随机接入方案，
对
不同类型的随机接入请求提供不同的接入机制，以保证边缘用户的接入性能和满足不同业务
的QoS需求。仿真结果表明，与LTE标准随机接入方案相比，该方案对系统整体接入性能略有
提高，且大大提高了边缘高优先级用户的接入性能。 |
| 关键词: LTE-A 随机接入；CoMP；接入优先级；退避算法 |
| DOI： |
|
| 基金项目:国家重大科技专项项目(2009ZX03003-003-01)；中兴产学研项目 |
|
| A random access scheme based on CoMP |
| LU Xian-qi,ZHOU Wen-an,ZHU Chao-ping,SONG Jun-de |
| () |
| Abstract: |
| A new multiple random access process is proposed based on Coordinated
Multi-point (CoMP) transmission and reception. And the access priority is design
ed according to the purpose of random access and the type of service. On this ba
sis, a new random access scheme is discussed. This scheme provides different acc
ess mechanisms to different types of random access requests, and ensures the edg
e users′ access performances and the QoS requirements of different services. Si
m
ulation results show that, compared with the LTE standard random access program,
the overall system access performances increase slightly, and the edge high-pri
ority access performances increase greatly. |
| Key words: LTE-A random access CoMP access priority backoff algorithm |
