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The purpose of this text is to instruct the reader regarding how to implement efficient multiple precision algorithms. Future smart homes will need a ULD system to consider these challenges. A diagrammatic view of a typical installation of a base station apparatus similar to that of FIGS. 3a and 3b, or FIG. 3c, as is now installed in an end office switch 12 (shown in FIGS. 1 and 2) is shown in FIG. 3d. The communications system according to claim 24 wherein the multi-hop mesh further comprises: optically-free-space multi-hop telecommunicating base stations that are additionally radio-telecommunicating, each of these radio-telecommunicating and optically-free-space multi-hop telecommunicating base stations further having, in addition to its communications switch, its plurality of optical transceivers, and its controller, a radio transceiver, electrically connected to the communications switch, for wirelessly communicating by radio externally to the base stations; wherein the controller is further causing the switch to route communications traffic between the radio transceiver and the plurality of optical transceivers. a hardwired connection between the switch and a communications backbone external to the system to which communications backbone other end-offices also connect, a plurality of optical transceivers, electrically connected to the communications switch, for wirelessly telecommunicating externally to the end-office optically through free space, and a controller for causing the communications switch to route communications traffic between (i) its hardwired connection to the external communications backbone and (ii) its plurality of optical transceivers; and a radio transceiver, electrically connected to the communications switch, for wirelessly telecommunicating by radio locally externally to the base station, a plurality of optical transceivers, electrically connected to the communications switch, for wirelessly communicating regionally externally to the base station by multi-hop free-space optical links, and a controller for causing the communications switch (i) to route telecommunications traffic between the radio transceiver and the optical transceivers, and also (ii) to route any received multi-hop optical communications traffic from a receiving to a transmitting optical transceiver, to the purpose and the end that (i) local telecommunications traffic at the radio transceiver is free-space optically communicated step-wise multi-hop regionally through the optical transceivers of whatsoever number of base stations are required to and from the end office, and upon the communications backbone, while (ii) optical communications of other base stations are passed from a receiving to a sending optical transceiver in order that multi-hop optical communications may be realized upon the mesh network; wherein radio telecommunications local to one base station are free-space multi-hop optically telecommunicated upon the mesh network until ultimately communicatively interconnecting to the communications backbone. bi-directionally wire/cable-communicating information between a communications switch at a particular, end-office, site and a hardwired connection to a communications backbone which backbone is external to the end-office site and to which other end-office sites also connect; end-office-wire/cable-switching the information between the end-office communications switch and a selected one of a plurality of wireless first transceivers, co-located at the end office with and electrically wire/cable connected to the communications switch, where the selected one of the plurality of wireless first transceivers at the end office is so selected in accordance with the information telecommunicated; first wirelessly-telecommunicating the information through the selected one of the plurality of wireless first transceivers into free space, and onto a mesh of a multiplicity of free-space wireless communication transceivers; further first wirelessly-telecommunicating the information upon successive links in free space upon the mesh, and through successive selected ones of the multiplicity of wireless first transceivers as are each located at a geographically separated mesh node, the successive selections of which ones of the wireless first transceivers are invoked for telecommunication upon the mesh, and the direction of the telecommunication of the information upon the mesh, all being in accordance with the information, until a mesh telecommunications linkage is ultimately made with a wireless first transceiver at a particular selected, base station, mesh node; base-station-wire/cable-switching, in a switch at the selected base station mesh node that wire/cable connected to the wireless first transceiver at this selected base station mesh node, the information between the wireless first transceiver at this selected base-station node and a wireless second transceiver that is co-located at this selected base-station node along with the first transceiver; and second wirelessly-telecommunicating the information with and through the second transceiver to a telecommunicating device in the local geographical region of the selected base-station node; wherein communications and telecommunications have transpired by, inter alia, wire/cable-communicating at the end-office, first wirelessly-telecommunicating over free-space mesh network links between the end-office and the selected base station node, and second wirelessly-telecommunicating at the selected base station node to the telecommunicating device. wherein the end-office-switching of the information is between the end-office communications switch and a selected one of a plurality of directional optical first transceivers; wherein the wirelessly-optically-telecommunicating of the information is through the selected one of a plurality of directional optical first transceivers into free space, and onto a mesh of a multiplicity of free-space directional optical telecommunication first transceivers; wherein the further wirelessly-telecommunicating of the information is optically in free space upon the mesh through successive selected ones of the multiplicity of directional optical telecommunication first transceivers; wherein the base-station switching, in a switch at the selected base station node, is of the information between the optical first transceiver at this selected base-station node and a radio second transceiver that is co-located at this selected base-station node along with the optical first transceiver; and wherein the wirelessly-telecommunicating of the information is from the radio second transceiver to a radio-telecommunicating device in the local geographical region of the selected base-station node. 29.

Pages: 296

Publisher: Focal Press; 1 edition (December 15, 2001)

ISBN: 0240516354

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