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Study on Technique of Dynamic Channel Allocation in the System of TD-SCDMA

Author: ZhengShiGang
Tutor: ZhangXiangDong
School: Xi'an University of Electronic Science and Technology
Course: Optics
Keywords: TD-SCDMA Radio resource management Dynamic channel allocation
CLC: TN929.533
Type: Master's thesis
Year: 2006
Downloads: 44
Quote: 0
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Abstract


Wireless TD-SCDMA system resources including codewords , frequency , power , time slots and space angle . Radio resource management (RRM) algorithms , dynamic channel allocation (Dynamic Channel Allocation, DCA) technology is the use of the system in the comprehensive information of all wireless resources allocated for the implementation , management and scheduling , to maximize the use of system resources and ensure that the link and the system's performance . Dynamic channel allocation techniques generally include two aspects : First, the allocation of resources to the district , also known as Slow dynamic channel allocation ( slow DCA) . Two is to allocate resources to the bearer operations , also called fast dynamic channel allocation ( FAST DCA ) DCA technology , able to limit interference , minimize channel reuse distance , thereby efficiently using the limited wireless resources , increase system capacity ; more important DCA technology can better adapt to the needs of 3G services , especially high-speed rate up and down the line asymmetry network services and multimedia services . DCA is the advantage of the TDD system , the flexibility to allocate time slots resources dynamically adjust the number of uplink and downlink time slots , which can flexibly support symmetric and asymmetric business . According to the characteristics of the TD-SCDMA system , a DCA program , particularly suitable for use in business asymmetries in the distribution environment and do the simulation on the basis of the relevant research . The research results show that the program , compared with the traditional method greatly improved resource utilization , and full use of the valuable spectrum resources , has a strong practical .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications > Cellular mobile communications systems (mobile phones, mobile phone handsets ) > Code Division Multiple Access (CDMA) mobile communication
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