支持CoMP的随机接入过程
首发时间:2012-02-16
摘要:随随机接入过程是网络与终端通信的首要环节,其性能的好坏严重影响系统的整体性能。LTE-A中CoMP技术的引入使节点之间的拓扑关系以及控制和通信行为变得更为复杂,影响随机接入过程。本文提出了一种支持CoMP的随机接入过程,针对边缘用户采用多发的随机接入流程,降低了接入时延,提高了其接入成功率。并且采用区分业务的退避算法,较好地保证了高优先级用户优先接入网络,满足用户的QoS需求。
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Random Access Process to Support CoMP
Abstract:Random access is the first stage of communicating between network and terminals.Its performance influences the system performance seriously.In LTE-Advanced system,introducing CoMP can make information interaction and signaling transmission between cells and UEs be more complex ,influencere random access procedure.In this paper,it proposed a random access procedure to support CoMP.Proposed random access algorithm can reduce access delay and increase access success rate through multiple access for the cell-edge user. And the backoff algorithm can guarantee the high priority access to meet the QoS requirements.
Keywords: random access CoMP backoff algorithm
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