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http://dx.doi.org/10.6109/jkiice.2018.22.6.903

Implementation plan of eMBMS in the case of LTE-R  

Park, Min-ju (Engineering Headquarter, Korea Railnetwork Authonity)
Won, Hong-sun (Department of, Electronic & Communication, Korea Railnetwork Authonity)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.22, no.6, 2018 , pp. 903-909 More about this Journal
Abstract
In December 2017, the world's first LTE-R for 250km/h high-speed railway was commercialized with the opening of Wonju-Gangneung high-speed railway. LTE-R has many advantages such as voice and video call, high-speed data transmission, coverage redundancy and DU redundancy. But it requires efficient use of radio resources because of a limited bandwidth of 10MHz for UL and DL, respectively. The existing unicast scheme has limited high frequency efficiency so when the number of users increases, service is limited due to the network load, which could be a problem for LTE-R in terms of stability and reliability. On the other hand, the multicast scheme via eMBMS can provide stable service even if the number of video users is high. This paper derives the number of unicast scheme users considering the LTE-R network with LAB test and calculation result, and proposes implementation plans and considerations for eMBMS commercialization on LTE-R.
Keywords
LTE-R; eMBMS; Unicast; Multicast;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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