The particle is represented by the wave packet in nonlinear space-time continuum. Due of dispersion, the packet periodically appears and disappears in movement and the envelope of the process coincides with the wave function. It was considered that the partial differential equation of telegraph-type describes the motion of such wave packet in spherical coordinate space (r,θ ,ϕ ) . Also the analytical solution u(r,θ ,ϕ ) of this equation was constructed and it was supposed that the integral over all space of 2 2 grad u was equal to the mass of the particle identified with the wave packet. As the solution u(r,θ ,ϕ ) depends on two parameters L,m being positive integer, it is possible to calculate our theoretical particle masses Lm M for different L,m. Thus, we have obtained the theoretical mass spectrum of elementary particles. In comparison with known experimental mass spectrum it shows that our calculated theoretical mass spectrum is sufficiently verisimilar. In this article we discuss the problems of standard SMmodel, supersymmetry and string theory, compare the possibility to predict in UQT and SM and show that Standard Model has left unsettled a lot of fundamental problems solved by UQT.