Dynamic bias setting for range extension in LTE-advanced 
macro-pico heterogeneous networks

doi:10.1016/S1005-8885(13)60065-5

中国邮电高校学报(英文) ›› 2013, Vol. 20 ›› Issue (4): 28-33.doi: 10.1016/S1005-8885(13)60065-5

Dynamic bias setting for range extension in LTE-advanced macro-pico heterogeneous networks

高砾琦¹,田辉²,王萌¹,田鹏¹,蒋宝昂¹

School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

收稿日期:2013-01-04 修回日期:2013-04-10 出版日期:2013-08-31 发布日期:2013-08-30
通讯作者: 高砾琦 E-mail:gaoliqi.bupt@gmail.com
基金资助:
This work was supported by Funds for Creative Research Groups of China (61121001), the National Science and Technology Major Project (2012ZX03003012-004, 2012ZX03004-005-002), and the Program for Changjiang Scholars and Innovative Research Team in University (IRT1049).

Dynamic bias setting for range extension in LTE-advanced macro-pico heterogeneous networks

School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2013-01-04 Revised:2013-04-10 Online:2013-08-31 Published:2013-08-30
Supported by:
This work was supported by Funds for Creative Research Groups of China (61121001), the National Science and Technology Major Project (2012ZX03003012-004, 2012ZX03004-005-002), and the Program for Changjiang Scholars and Innovative Research Team in University (IRT1049).

摘要/Abstract

摘要： In co-channel deployment of macro cell and pico cells, cell range extension (RE), a simple and typical cell association scheme, is introduced to achieve better load balancing and improve cell edge performance. In this article, a novel dynamic and distributed bias setting scheme is proposed for RE technique in macro-pico heterogeneous networks. In this strategy, the worst user throughput of each cell during an adjusting time interval T is obtained to change the bias values according to certain procedures, where an introduced indicator is used to freeze the possibility of increasing bias value if needed. Furthermore, silent state and coarse control process are employed to achieve low overheads and computational complexity. Simulation results show that the proposed scheme can greatly improve the cell-edge performance compared with the static bias setting strategies, while maintaining the overall cell performance at the same time.

关键词: RE, heterogeneous network, enhanced inter cell interference coordination (eICIC), dynamic, bias setting, pico cells

Abstract: In co-channel deployment of macro cell and pico cells, cell range extension (RE), a simple and typical cell association scheme, is introduced to achieve better load balancing and improve cell edge performance. In this article, a novel dynamic and distributed bias setting scheme is proposed for RE technique in macro-pico heterogeneous networks. In this strategy, the worst user throughput of each cell during an adjusting time interval T is obtained to change the bias values according to certain procedures, where an introduced indicator is used to freeze the possibility of increasing bias value if needed. Furthermore, silent state and coarse control process are employed to achieve low overheads and computational complexity. Simulation results show that the proposed scheme can greatly improve the cell-edge performance compared with the static bias setting strategies, while maintaining the overall cell performance at the same time.

Key words: RE, heterogeneous network, enhanced inter cell interference coordination (eICIC), dynamic, bias setting, pico cells

GAO Li-qi, TIAN Hui, WANG Meng, TIAN Peng, JIANG Bao-ang. Dynamic bias setting for range extension in LTE-advanced macro-pico heterogeneous networks [J]. Acta Metallurgica Sinica(English letters), 2013, 20(4): 28-33.

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Dynamic bias setting for range extension in LTE-advanced macro-pico heterogeneous networks

Dynamic bias setting for range extension in LTE-advanced macro-pico heterogeneous networks

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