DocumentCode
601178
Title
A Novel Method to Solve CRS/PDSCH RE Collision in Joint Transmission in LTE-A
Author
Xie, Jinghui ; Xiaogang, Chen ; Zhu, Yuan ; Yang, Hongwen ; Dai, Liyun
fYear
2012
fDate
12-16 Dec. 2012
Firstpage
66
Lastpage
70
Abstract
CoMP (Coordinated multi-point) transmission and reception has been studied for deployment types such as heterogeneous networks in LTE-A Rel-11. In this paper, we focus on the CRS (cell-specific reference signal)/PDSCH (Physical Downlink Shared Channel [12]) RE (resource element) collision in downlink joint transmission where different transmission points have different CRS frequency shifts. Since CRS muting scheme with rate match¬ing de¬creases PDSCH throughput, we propose to send an additional PDSCH RE over the CRS collided PDSCH REs from joint transmission points. With CRS-IC (CRS interference canceling) receiver at UE, this scheme has significant throughput gain over CRS muting in the link level simulation. In addition, this new approach doesn´t have negative impact on legacy UE´s interference measurements com¬pared with the rate matching scheme.
Keywords
CRS muting; CRS-IC receiver; downlink CoMP; joint transmission;
fLanguage
English
Publisher
ieee
Conference_Titel
Connected Vehicles and Expo (ICCVE), 2012 International Conference on
Conference_Location
Beijing, China
Print_ISBN
978-1-4673-4705-1
Type
conf
DOI
10.1109/ICCVE.2012.20
Filename
6519544
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