Active distributed antenna system with frequency translation and switch matrix
AssigneeElectronic Design & Development, Corp.
InventorsSergio E. Cardona, JR., Kevin W. Patrick, Joel Blumke, Silvio Cardero
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Abstract
A three-dimensional, 360 degree, omnidirectional multiple-input multiple-output wireless systems is described herein. The multiple-input multiple-output wireless system is comprised of a plurality of radio inputs, a plurality of radio-frequency converters, an RF signal distribution network, a plurality of transceivers, and a plurality of antennas. The multiple-input multiple-output wireless system may further have a plurality of planar stacks.
Claims20
A three-dimensional (3D) multiple-input multiple-output wireless system (MIMO) comprising:
- N oriented antennas each pointing in a unique direction in 3D space and each comprising a transceiver block, wherein N is a first fixed positive integer, wherein each oriented antenna has a Poynting ray, wherein each oriented antenna is configured to emit electromagnetic wave energy primarily along its Poynting ray and receive electromagnetic wave energy primarily along the negative of its Poynting ray, wherein each Poynting ray is offset in its angular orientation from each adjacent Poynting ray, wherein each given oriented antenna dominates, within its respective sub-region of solid-angular coverage, the response of all other oriented antennas;
- a radio-frequency fanning network, configured to connect electrically at most one radio with each oriented antenna at any given instant;
- R radios, wherein R is a second fixed positive integer;
- and
- a digital control logic, configured to control the coordinated operation of the radios, the radio-frequency fanning network, and the transceiver blocks;
- wherein the control of radiated power and received sensitivity to each sub-region is about orthogonal;
- wherein any first given radio, from among the R radios, is configured to address any given subset of the entirety of solid-angular sub-regions, wherein then any second given radio is configured to address any subset of the remaining solid-angular sub-regions not yet addressed, wherein the pattern established for the first given radio and the second given radio is continued such that each of the remaining radios in turn is configured to address any subset of the remaining solid-angular sub-regions not yet addressed, until either no solid-angular sub-regions remain unaddressed, or all R radios require no further solid-angular sub-regions of address;
- so as to provide efficient radio coverage of the entire solid-angular region addressed wirelessly by the MIMO, with respect to the location of the MIMO.
A three-dimensional (3D) multiple-input multiple-output wireless system (MIMO) comprising:
- a plurality of radios, a plurality of mutually uniquely oriented active antennas, and an interconnect fabric;
- wherein the narrow beam of each active antenna primarily addresses a respective solid-angular region, wherein the interconnect fabric and the gain level of each active antenna are configured independently and dynamically so as to connect electrically each active antenna to any or none of the plurality of radios at any given time, so as to provide efficient radio coverage of the totality of solid-angular regions addressed wirelessly by the MIMO.
A three-dimensional (3D) multiple-input multiple-output wireless system (MIMO) comprising:
- N oriented antennas, each pointing in a unique direction in three-dimensional (3D) space, and each comprising a transceiver block, wherein N is a first fixed, positive integer;
- a radio-frequency fanning network, configured to connect electrically at most one radio with each oriented antenna at any given instant;
- R radios, wherein R is a second fixed, positive, integer;
- and
- a digital control logic, having a control port by which to receive commands, the digital control logic configured to control the coordinated operation of the radios, the radio-frequency fanning network, and the transceiver blocks;
- wherein the control of radiated power and received sensitivity to each oriented antenna is about orthogonal, so as to provide efficient radio coverage of the entire solid-angular region addressed wirelessly by the MIMO, with respect to the location of the MIMO.
Dependencies are inferred from the claim text.