Digital baseband transport in telecommunications distribution systems
First Claim
1. A distributed antenna system, comprising:
- a head end unit configured to communicate channelized digital baseband signals with remotely located units, the channelized digital baseband signals including call information for wireless communication, the head end unit including circuitry configured to;
receive downlink signals from at least one base station;
process the downlink signals into downlink channelized digital baseband signals using a channelizer circuitry including a channel filter, an interpolator, and a mixer associated with an oscillator;
format the downlink channelized digital baseband signals for transport together;
packetize and packet schedule the downlink channelized digital baseband signals into downlink packetized baseband signals; and
transmit the downlink packetized baseband signals to the remotely located units.
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Accused Products
Abstract
A telecommunications system is provided that includes a unit for communicating channelized digital baseband signals with remotely located units. The channelized digital baseband signals include call information for wireless communication. The unit includes a channelizer section and a transport section. The channelizer section can extract, per channel, the channelized digital baseband signals using channel filters and digital down-converters. The transport section can format the channelized digital baseband signals for transport together using a transport schedule unit for packetizing and packet scheduling the channelized digital baseband signals. A signal processing subsystem can control a gain of uplink digital baseband signals, independently, that are received from the remotely located units prior to summing the uplink digital baseband signals.
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Citations
20 Claims
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1. A distributed antenna system, comprising:
a head end unit configured to communicate channelized digital baseband signals with remotely located units, the channelized digital baseband signals including call information for wireless communication, the head end unit including circuitry configured to; receive downlink signals from at least one base station; process the downlink signals into downlink channelized digital baseband signals using a channelizer circuitry including a channel filter, an interpolator, and a mixer associated with an oscillator; format the downlink channelized digital baseband signals for transport together; packetize and packet schedule the downlink channelized digital baseband signals into downlink packetized baseband signals; and transmit the downlink packetized baseband signals to the remotely located units. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A distributed antenna system, comprising:
a head end unit configured to communicate channelized digital baseband signals with remotely located units, the channelized digital baseband signals including call information for wireless communication, the head end unit including circuitry configured to; receive uplink packetized baseband signals from the remotely located units; extracting uplink channelized digital baseband signals from the uplink packetized baseband signals; process the uplink channelized digital baseband signals into uplink signals using a channelizer circuitry including a channel filter, an interpolator, and a mixer associated with an oscillator; and communicate at least one of the uplink signals and a summation of the uplink signals to the at least one base station. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A distributed antenna system comprising:
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at least two remote units configured to wirelessly transmit signals in a coverage area; a head end unit configured to communicate, with the at least two remote units, channelized digital baseband signals that include call information for wireless communication; extraction circuitry configured to extract the digital baseband signals; and transport circuitry configured to; format the digital baseband signals for transport together using a transport schedule unit, wherein the transport schedule unit is configured to packetize and packet schedule the digital baseband signals; process the channelized digital baseband signals using a channelizer circuitry including a channel filter, an interpolator, and a mixer associated with an oscillator; and extract received channelized digital baseband signals from a transport physical interface device. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification