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Applying Patent-Based Fuzzy Quality Function Deployment to Explore Prospective VoLTE Technologies

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Abstract

Rapid growth in the use of mobile devices has driven demand for high-speed mobile broadband services, and carriers are responding by adopting the long-term evolution (LTE), the leading standard of the fourth generation of mobile phone communication technology. However, LTE network services will not transmit voice data without the implementation of Voice over LTE (VoLTE) initiatives. This study enhances a patent-based multi-stage fuzzy quality function deployment (QFD) methodology by considering the weight of patent age and technology attractiveness to explore customer requirements and identify prospective technologies for use in the deployment of VoLTE services. The results show that the three most important VoLTE technologies are related to “originating and terminating control,” “improvement of radio link spectrum efficiency,” and “location registration control.” Furthermore, by using reverse QFD, we find that current VoLTE technologies fail to meet the customer requirement for “voice quality-audio.” The findings systematically identify critical technologies which should be of interest to VoLTE patent holders, network operators, and terminal equipment manufacturers.

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Acknowledgments

The authors wish to acknowledge discussions with Prof. Amy Trappey, Department of Industrial Engineering and Engineering Management, National Tsing Hua University. This work was supported in part by the Ministry of Science and Technology, Taiwan, under the Grant no. MOST 104-2221-E-027-036.

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Authors and Affiliations

  1. Department of Information and Finance Management, National Taipei University of Technology, Taipei, Taiwan, ROC

    Yu-Hui Wang

  2. Institute of Information and Finance Management, National Taipei University of Technology, Taipei, Taiwan, ROC

    Tzu-han Chow

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  1. Yu-Hui Wang
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  2. Tzu-han Chow
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Correspondence to Yu-Hui Wang.

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Wang, YH., Chow, Th. Applying Patent-Based Fuzzy Quality Function Deployment to Explore Prospective VoLTE Technologies. Int. J. Fuzzy Syst. 18, 424–435 (2016). https://doi.org/10.1007/s40815-016-0175-z

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  • DOI: https://doi.org/10.1007/s40815-016-0175-z

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