Apparatus and method for extending DOCSIS cable modem service over wireless links
First Claim
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1. An apparatus for wireless upstream and downstream access to a cable television service comprising:
- a splitter;
an embedded cable modem controller connected to said splitter;
a downstream channel unit connected to said splitter and further connected to an automatic gain control (AGC);
an upstream channel unit connected to said splitter and further connected to a programmable gain unit (PGU); and
an antenna connected to an up converter transmitting unit and further connected to a down converter receiving unit, said up converter further connected to said AGC and said down converter further connected to said PGU;
wherein said embedded cable modem controller is further to control at least one of the devices selected from the group consisting of said downstream channel unit, said upstream channel unit, said up converter transmitting unit, said down converter receiving unit, and said PGU, andwherein control of said up converter transmitting unit by said embedded cable modem controller is of at least mapping a frequency of a DOCSIS transmission into a wireless air frequency, wherein said wireless air frequency is a frequency mapped by adding said DOCSIS transmission frequency and the wireless air frequency.
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Abstract
An apparatus and method are presented to allow the extension of a DOCSIS cable modem service over a wireless link. According to the invention a wireless hub transceiver is connected to a distribution coax cable of a DOCSIS based system. The downstream data are transferred over a wireless link to a remote subscriber radio frequency (RF) unit connected to a cable modem that provides the downstream data to the subscriber. Similarly, upstream data are sent from the subscriber cable modem over the wireless link to the wireless hub transceiver where such data are inserted back to the distribution coax cable.
23 Citations
18 Claims
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1. An apparatus for wireless upstream and downstream access to a cable television service comprising:
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a splitter; an embedded cable modem controller connected to said splitter; a downstream channel unit connected to said splitter and further connected to an automatic gain control (AGC); an upstream channel unit connected to said splitter and further connected to a programmable gain unit (PGU); and an antenna connected to an up converter transmitting unit and further connected to a down converter receiving unit, said up converter further connected to said AGC and said down converter further connected to said PGU; wherein said embedded cable modem controller is further to control at least one of the devices selected from the group consisting of said downstream channel unit, said upstream channel unit, said up converter transmitting unit, said down converter receiving unit, and said PGU, and wherein control of said up converter transmitting unit by said embedded cable modem controller is of at least mapping a frequency of a DOCSIS transmission into a wireless air frequency, wherein said wireless air frequency is a frequency mapped by adding said DOCSIS transmission frequency and the wireless air frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus for wireless upstream and downstream access to a cable television service comprising:
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a splitter; an embedded cable modem controller connected to said splitter; a downstream channel unit connected to said splitter and further connected to an automatic gain control (AGC); an upstream channel unit connected to said splitter and further connected to a programmable gain unit (PGU); and an antenna connected to an up converter transmitting unit and further connected to a down converter receiving unit, said up converter further connected to said AGC and said down converter further connected to said PGU; wherein said embedded cable modem controller is further to control at least one of the devices selected from the group consisting of said downstream channel unit, said upstream channel unit, said up converter transmitting unit, said down converter receiving unit, and said PGU; and wherein control of said down converter receiving unit by said embedded cable modem controller is of at least selecting one of at least two non-license bearing wireless channels. - View Dependent Claims (13, 14, 15)
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16. An apparatus for wireless upstream and downstream access to a cable television service comprising:
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a splitter; an embedded cable modem controller connected to said splitter; a downstream channel unit connected to said splitter and further connected to an automatic gain control (AGC); an upstream channel unit connected to said splitter and further connected to a programmable gain unit (PGU); and an antenna connected to an up converter transmitting unit and further connected to a down converter receiving unit, said up converter further connected to said AGC and said down converter further connected to said PGU; wherein said embedded cable modem controller is further to control at least one of the devices selected from the group consisting of said downstream channel unit, said upstream channel unit, said up converter transmitting unit, said down converter receiving unit, and said PGU; wherein control of said PGU by said embedded cable modem controller is to adjust an upstream power level in a long loop that begins at headend of a CATV system; and wherein gain control of said PGU is to be performed under control of a cable modem termination system (CMTS) equipment located at said headend. - View Dependent Claims (17, 18)
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Specification