DIGITAL CAPACITY CENTRIC DISTRIBUTED ANTENNA SYSTEM
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Abstract
Disclosed herein is an architecture for a Digital Capacity Centric Distributed Antenna System (DCC-DAS) that dynamically manages and distributes resources in different locations where there is demand for capacity. The DCC-DAS also allows for the routing of resources to other applications such as location finding devices, jamming devices, repeaters, etc.
201 Citations
64 Claims
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1-45. -45. (canceled)
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46. A digital distributed antenna system (DAS) comprising:
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a plurality of remote radio units (RRUs) in communication with mobile devices; a plurality of base transceiver stations (BTS'"'"'s); a central hub coupled to the RRUs and the BTS'"'"'s; and a digital filter bank comprising one or more digital filters, each digital filter being matched to a unique cell resource, a cell resource including a band of contiguous frequencies within a frequency spectrum and including at least one or more downlink RF signals being received from one or more of the BTS'"'"'s, and each digital filter being matched to a unique cell resource, a cell resource including a band of frequencies within a frequency spectrum and including at least one or more signals being received from one or more mobile devices; wherein, in a downlink direction, the DAS multiplexes one or more downlink RF signals, digitizes the one or more downlink signals, and filters the digitized one or more downlink signals on a cell resource basis with a digital filter bank, wherein each filter in the digital filter bank is allocated a distinct individual transfer function to match the cell resource it is filtering, wherein the central hub routes the resulting digitized filtered cell resources to one or more appropriate RRUs according to pre-programmed routines in the central hub to provide individual routing of each cell resource to RRUs for transmission to their mobile devices, wherein, in an uplink direction, the DAS multiplexes one or more uplink RF signals, digitizes the one or more uplink signals, and filters the digitized one or more uplink signals on a cell resource basis with a digital filter bank, wherein each filter in the digital filter bank is allocated a distinct individual transfer function to match the cell resource it is filtering, and wherein the central hub routes the resulting digitized filtered cell resources to one or more appropriate BTS'"'"'s according to pre-programmed routines in the central hub to provide individual routing of each cell resource to BTS'"'"'s. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 64)
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63. A method for routing cell resources through a central hub of a digital distributed antenna system (DAS) coupled to a plurality of remote radio units (RRUs) and a plurality of base transceiver stations (BTS'"'"'s), in a downlink direction the method comprising:
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receiving and multiplexing one or more downlink RF signals from one or more base transceiver stations (BTS'"'"'s); digitizing the one or more downlink signals; filtering the one or more digitized downlink signals on a cell resource basis using a digital filter bank comprising one or more digital filters, each digital filter being matched to a unique cell resource, a cell resource including a band of contiguous frequencies within a frequency spectrum and including at least one or more RF signals being received from one or more BTS'"'"'s; and routing the filtered cell resources to the one or more RRUs according to pre-programmed routines in the central hub to provide individual routing of each cell resource to RRUs for transmission to their mobile devices, and, in an uplink direction, the method comprising; receiving and multiplexing one or more uplink RF signals from one or more remote radio units (RRUs) in communication with one or more mobile devices; digitizing the one or more uplink signals; filtering the one or more uplink signals on a cell resource basis using the digital filter bank comprising one or more digital filters, each digital filter being matched to a unique cell resource; and routing the filtered cell resources to one or more BTS'"'"'s according to pre-programmed routines in the central hub.
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Specification