LTE-Advanced系统中PCI自配置仿真研究

电信科学

LTE-Advanced系统中PCI自配置仿真研究

孙成丹,张洪岩,魏　垚,李　远,彭木根

北京邮电大学泛网无线通信教育部重点实验室;北京邮电大学泛网无线通信教育部重点实验室;北京邮电大学泛网无线通信教育部重点实验室;北京邮电大学泛网无线通信教育部重点实验室;北京邮电大学泛网无线通信教育部重点实验室

出版日期:2013-07-15 发布日期:2013-07-15
基金资助:
“新一代宽带无线移动通信网”国家科技重大专项基金资助项目（No.2011ZX03003-002-01，No.2012ZX03001028-04），霍英东教育基金会应用基础研究项目（No.122005），新世纪优秀人才支持计划资助项目

Simulation Research for PCI Automatic Allocation in LTE-Advanced System

Sun Chengdan,Zhang Hongyan,Wei Yao,Li Yuan and Peng Mugen

Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts & Telecommunications;Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts & Telecommunications;Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts & Telecommunications;Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts & Telecommunications;Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts & Telecommunications

Online:2013-07-15 Published:2013-07-15

摘要/Abstract

摘要： 随着异构节点的大量接入，LTE-Advanced系统日趋复杂，PCI（physical cell identification，物理小区标识）自配置作为网络运行前的关键一步，对于网络规划、网络性能的提升具有重要作用。考虑到PCI对于小区搜索和同步过程的重要性，提出了一种基于最短距离—最远距离的PCI自配置算法，对PCI资源进行了合理有效的分配，有效地规避了小区同步信号干扰，提升了系统性能。系统级仿真结果表明，与经典的顺序PCI分配算法相比，本文提出的算法在扇区平均频谱效率和边缘用户频谱效率方面都有显著的提升。

Abstract: With many low-power nodes deployed in the network, LTE-Advanced system becomes more complicated. PCI automatic allocation, as a key step before system operation, plays an important role in network planning and promoting system performance. Reasonable PCI is of great importance to cell search and synchronization. A PCI automatic allocation method, which is based on the nearest-distance and farthest-distance simultaneously, was proposed. By this method, PCI could be allocated reasonably, and synchronization signal interference could be avoided efficiently, with system performance promoted. System level simulation results show that，the proposal method performs much better in terms of both sector average spectrum efficiency and cell edge user’s spectrum efficiency, compared with the classical sequential PCI allocation.

孙成丹,张洪岩,魏　垚,李　远,彭木根. LTE-Advanced系统中PCI自配置仿真研究[J]. 电信科学.

Sun Chengdan,Zhang Hongyan,Wei Yao,Li Yuan and Peng Mugen. Simulation Research for PCI Automatic Allocation in LTE-Advanced System[J]. Telecommunications Science.