Research and Field Trial of Uplink Coordinated Multipoint Processing in TD-LTE Network

• Published in: Dianxin kexue
• Main Authors: Qixing Wang, Lifeng He, Yi Zheng, Zhenping Hu, Guangyi Liu, Xing Lin, Lei Li, Butovitsch Peter
• Format: Article
• Language: Chinese
• Published: Beijing Xintong Media Co., Ltd 2013-05-01
• Subjects: TD-LTE;inter-cell interference;uplink coordinated multipoint processing
• Online Access: http://www.telecomsci.com/thesisDetails#10.3969/j.issn.1000-0801.2013.05.009

TD-LTE is deployed in the same frequency band to improve spectral usage，which also makes the inter-cell interference（ICI）become one of the main bottlenecks of the network capacity. The test results of the large scale TD-LTE field trial demonstrate more than 70% UE could detect signals from multiple cells. The coordinated multi-point processing（CoMP）technology adopts several cell to jointly transmit/receive signals for UE，which could effectively reduce ICI. Several kinds of uplink CoMP scheme were studied. Especially，the field trial of the uplink CoMP in the realistic TD-LTE network was introduced. The test results show that the ce11-edge UE could achieve 50%～100% throughput gain via the uplink CoMP technology，which significantly improves the user experience.