Realtime multi-user multi-antenna downlink measurements

被引:0
|
作者
Wirth, T. [1 ]
Forck, A. [1 ]
Wahls, S. [1 ]
Gaebler, H. [1 ]
Jungnickel, V. [1 ]
Haustein, T. [2 ]
Eichinger, J. [2 ]
Monge, D. [2 ]
Schulz, E. [2 ]
Juchems, C. [3 ]
Luhn, F. [3 ]
Zavrtak, R. [3 ]
机构
[1] Heinrich Hertz Inst Nachrichtentech Berlin GmbH, Fraunhofer Inst F Telecommun, Einsteinufer 37, D-10587 Berlin, Germany
[2] Nokia Siemens Networks GmbH & CoKG, D-81617 Munich, Germany
[3] IAF GmbH, D-38104 Braunschweig, Germany
关键词
D O I
暂无
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper, we present real time broadband multi user multi antenna measurements in typical indoor and outdoor scenarios. For the first time, essential frequency selective functions of a new medium access control (MAC) layer, namely fair resource assignment to multiple users, spatial mode selection and adaptive modulation, have been implemented in real time on standard digital signal processing hardware. The new MAC layer is steered over wireless feedback and control channels in a closed loop manner. Our implementation uses parameters close to the forthcoming long term evolution (LTE) of the 3G air interface, thus illustrating the feasibility of the new functions in next generation cellular radio systems. The paper describes our real time implementation and reports several test results. Benefits of the frequency selective multi user MIMO MAC are validated in realistic mobile propagation environments.
引用
收藏
页码:1328 / +
页数:2
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