MULTIDIMENSIONAL CELLULAR MOBILE TELECOMMUNICATION SYSTEM

摘要

The multidimensional cellular mobile telecommunication system extends the usage of existing cellular mobile telecommunication radio frequencies allocated for ground-based communications to non-terrestrial mobile subscrib er stations by adding an overlay of non-terrestrial cells of predetermined geometry and locus in space to the existing ground-based cellular cell site network. The polarization of the signals produced by the non-terrestrial antenna elements is a polarization that is different than and preferably substantially orthogonal to the polarization of the cellular radio signals produced by the ground-based antennas, such as a horizontal polarization, to thereby minimize the possibility of interference with the vertically polariz ed ground-based radio signals. Furthermore, the control signals exchanged betwe en the non-terrestrial mobile subscriber stations and the non-terrestrial cell site controller are architected to avoid the possibility of interference wit h ground-based cell site transmitter-receiver pairs. In particular, the contro l channels used for the non-terrestrial mobile subscriber stations are selecte d such that the control signals transmitted in these channels are unrecognizab le to the ground-based mobile subscriber stations and cell site transmitter- receiver pairs, so that even if broadcasts from a non-terrestrial mobile subscriber station reach a ground-based mobile subscriber station or cell si te receiver, they cannot be interpreted and are rejected out of hand.