According to the embodiments of the present invention, in a system to which the E UTRA is applied, a base station apparatus, a user apparatus, and a method of allocating a reference signal sequence are provided that make it possible to reduce sequence collision among cells without increasing {HEAD ~ signaling} reported by {TAIL ~ the base station apparatus} 
reported by
According to the embodiments of the present invention , in a system to which the E UTRA is applied , a base station apparatus , a user apparatus , and a method of allocating a reference signal sequence are provided that make it possible to reduce sequence collision among cells without increasing { HEAD ~ signaling } reported by { TAIL ~ the base station apparatus }
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