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Radio Resource Management for TD-SCDMA and Evolved TDD: A Survey

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In Time-division Duplex Synchronous Code-Division Multiple Access (TD-SCDMA) systems, inherent channel reciprocity and usage of smart antenna and multi-user detection have distinct effect on Radio Resource Management (RRM) strategy compared to Frequency-Division Duplex (FDD) 3G cellular systems. Moreover, along the evolution road of TD-SCDMA, RRM strategy also adapts to the evolved network architecture and some emerging techniques, such as Multiple-Input Multiple-Output (MIMO), Orthogonal Frequency-Division Multiplexing (OFDM), and cooperative relaying transmission, etc. This paper reviews and presents latest results on RRM issues for TD-SCDMA and evolved TDD systems, such as TD-SCDMA via High Speed Downlink Packet Access (HSDPA) or High Speed Uplink Packet Access (HSUPA), and Long Term Evolution (LTE) TDD system. Firstly, basic functions and algorithms of RRM for TD-SCDMA are introduced. Then the impact of evolution on RRM strategies is analyzed. Finally, several open problems related to RRM algorithms caused by these evolutions are indicated.

Abstract

In Time-division Duplex Synchronous Code-Division Multiple Access (TD-SCDMA) systems, inherent channel reciprocity and usage of smart antenna and multi-user detection have distinct effect on Radio Resource Management (RRM) strategy compared to Frequency-Division Duplex (FDD) 3G cellular systems. Moreover, along the evolution road of TD-SCDMA, RRM strategy also adapts to the evolved network architecture and some emerging techniques, such as Multiple-Input Multiple-Output (MIMO), Orthogonal Frequency-Division Multiplexing (OFDM), and cooperative relaying transmission, etc. This paper reviews and presents latest results on RRM issues for TD-SCDMA and evolved TDD systems, such as TD-SCDMA via High Speed Downlink Packet Access (HSDPA) or High Speed Uplink Packet Access (HSUPA), and Long Term Evolution (LTE) TDD system. Firstly, basic functions and algorithms of RRM for TD-SCDMA are introduced. Then the impact of evolution on RRM strategies is analyzed. Finally, several open problems related to RRM algorithms caused by these evolutions are indicated.

참고문헌 (31)

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