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Study on coexistence between DCS1800 and tdd-lte systems in multi-mode terminals

The Journal of China Universities of Posts and Telecommunications 2014年第6期21卷 24-29页

作者： ZHENG Zhi-hui ZHAO Cheng-lin Li Bin TAO Hong-bo School of Telecommunication Engineering Beijing University of Posts and Telecommunications The State Radio Monitoring Center Testing Center

It＇s well known that the mobile stations will comprise a wide range of radio access technologies（RAT）, providing user with flexible and efficient access to multi-media service and high data rate communications. Although much work has been done for coexistence analysis between different systems base stations（BS）, most of them have not addressed the interference within multi-mode terminal. Hence, for filling the gap, The authors in the article present coexistence studyies of digital cellular system at 1 800 MHz（DCS1800） and time division duplex long term evolution（tdd-lte） network in multi-mode terminal with multi-service provisioning. A new system model for coexistence was introduced and how deterministic analysis can be done within the terminal was explained. The interference evaluation model was given based on relations between reference sensitivity and signal-to-noise ratio（SNR）, which is also deduced. The system simulation methodology was provided and assumption used in simulation was given. Simulation results were shown with different system parameters. Numeric results indicate that multi-mode terminal is mainly affected by local interference. The minimum antenna isolation required for a health system operation was provided.

关键词： tdd-lte systems coexistence analysis multi-mode terminal deterministic analysis sensitivity degradation

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