Distributed antenna system including crest factor reduction module disposed at optimum position
First Claim
1. A distributed antenna system, comprisinga plurality of head-end devices each configured to receive mobile communication signals from at least one corresponding base station;
- a hub communicatively coupled to the plurality of head-end devices and separated from the plurality of head-end devices; and
a plurality of remote devices communicatively coupled to the hub,wherein the hub is configured to distribute the mobile communication signals received from each of the plurality of head-end devices to the plurality of remote devices,wherein each of the plurality of remote devices is remotely disposed and configured to transmit the distributed mobile communication signals to a terminal in a service coverage, andwherein the hub includes;
an equalizer configured to perform an equalizing process of at least one of group delay, ripple, phase and amplitude of the mobile communication signals received from the plurality of head-end devices, anda crest factor reduction (CFR) that is disposed posterior to the equalizer and performs CFR processing on the equalized signals output from the equalizer.
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Abstract
A distributed antenna system includes a plurality of head-end devices for each receiving mobile communication signals from at least one corresponding base station, a hub communicatively coupled to the plurality of head-end devices, and a plurality of remote devices communicatively coupled to the hub, wherein the hub configured to distribute the mobile communication signals received from each of the plurality of head-end devices to the plurality of remote devices, wherein each of the plurality of remote devices is remotely disposed to transmit the distributed mobile communication signals to a terminal in service coverage, and wherein the hub includes a mixing processing stage configured to perform digital mixing processing on the mobile communication signals respectively received from the plurality of head-end devices, and a crest factor reduction (CFR) module disposed posterior to the mixing processing stage, with respect to a signal transmission direction.
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Citations
20 Claims
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1. A distributed antenna system, comprising
a plurality of head-end devices each configured to receive mobile communication signals from at least one corresponding base station; -
a hub communicatively coupled to the plurality of head-end devices and separated from the plurality of head-end devices; and a plurality of remote devices communicatively coupled to the hub, wherein the hub is configured to distribute the mobile communication signals received from each of the plurality of head-end devices to the plurality of remote devices, wherein each of the plurality of remote devices is remotely disposed and configured to transmit the distributed mobile communication signals to a terminal in a service coverage, and wherein the hub includes; an equalizer configured to perform an equalizing process of at least one of group delay, ripple, phase and amplitude of the mobile communication signals received from the plurality of head-end devices, and a crest factor reduction (CFR) that is disposed posterior to the equalizer and performs CFR processing on the equalized signals output from the equalizer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A distributed antenna system, comprising:
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a head-end device configured to receive mobile communication signals from a plurality of base stations; and at least one remote device communicatively coupled to the head-end device, the at least one remote device receiving the mobile communication signals from the head-end device, the at least one remote device being remotely disposed and configured to transmit the mobile communication signals to a terminal in service coverage, wherein the head-end device includes; an equalizer configured to perform an equalizing process of at least one of group delay, ripple, phase and amplitude of the mobile communication signals received from the plurality of base; and a crest factor reduction (CFR) processor that is disposed posterior to the equalizer and performs CFR processing on the equalized signals output from the equalizer. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A distributed antenna system, comprising
at least one head-end device configured to receive mobile communication signals from a plurality of base stations; - and
at least one remote device communicatively coupled to the at least one head-end device, wherein the at least one remote device is configured to receive the mobile communication signals from the at least one head-end device, wherein the at least one remote device is remotely disposed and configured to transmit the mobile communication signals to a terminal in service coverage, wherein the at least one remote device includes; an equalizer configured to perform an equalizing process of at least one of group delay, ripple, phase and amplitude of the mobile communication signals received from the at least one head-end device, and a crest factor reduction (CFR) processor that is disposed posterior to the equalizer and performs CFR processing on the equalized signals output from the equalizer. - View Dependent Claims (18, 19, 20)
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Specification