Multiband fast resource block assignment switching amplifier for full duplex data over cable networks
AssigneeCalian Ltd.
InventorsDAVID J. YOUNG, JIMMY MAKAROFF, DANIEL COODE
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Abstract
A full duplex (FDX) amplifier is provided that uses digital filtering for isolation of FDX sub-bands in FDX allocated spectrum, monitors media access control (MAC) management messages, and implements per-sub-band direction switching with precise timing. The FDX amplifier and associated methods have applications in data over cable networks, such as those that operate in accordance with the Data Over Cable Service Interface Specifications (DOCSIS) 4.0.
Claims32
A method for Full Duplex (FDX) amplification in a FDX data over cable network, the method comprising:
- receiving downstream signals via a first port;
- using a first downstream digital filter having a passband corresponding to a first FDX sub-band of FDX allocated spectrum to separate, from the downstream signals received via the first port, downstream signals in the first FDX sub-band of the FDX allocated spectrum;
- receiving upstream signals via a second port;
- using a first upstream digital filter having a passband corresponding to the first FDX sub-band of the FDX allocated spectrum to separate, from the upstream signals received via the second port, upstream signals in the first FDX sub-band of the FDX allocated spectrum;
- and
- in accordance with a requested sub-band directional assignment for the FDX allocated spectrum, selectively amplifying and retransmitting either:
- the downstream signals in the first FDX sub-band via the second port;
- or
- the upstream signals in the first FDX sub-band via the first port.
A Full Duplex (FDX) amplifier device for use in a FDX data over cable network, the FDX amplifier device comprising:
- a first port;
- a first downstream digital filter, operatively coupled to the first port, and having a passband corresponding to a first FDX sub-band of FDX allocated spectrum to separate, from downstream signals received via the first port, downstream signals in the first FDX sub-band of the FDX allocated spectrum;
- a second port;
- a first upstream digital filter, operatively coupled to the second port and having a passband corresponding to the first FDX sub-band of the FDX allocated spectrum to separate, from the upstream signals received via the second port, upstream signals in the first FDX sub-band;
- and
- first selective amplification and retransmission circuitry, operatively coupled between the first downstream digital filter and the second port, and configurable to selectively amplify and retransmit downstream signals from the first downstream digital filter via the second port;
- second selective amplification and retransmission circuitry, operatively coupled between the first upstream digital filter and the first port, and configurable to selectively amplify and retransmit upstream signals from the first upstream digital filter via the first port;
- and
- a controller, operatively coupled to the first selective amplification and retransmission circuitry and the second selective amplification and retransmission circuitry, the controller being configured to control the first selective amplification and retransmission circuitry and the second selective amplification and retransmission circuitry in accordance with a requested sub-band directional assignment for the FDX allocated spectrum so that either:
- the downstream signals in the first FDX sub-band are amplified and retransmitted via the second port;
- or
- the upstream signals in the first FDX sub-band are amplified and retransmitted via the first port.
-42. (canceled)
Dependencies are inferred from the claim text.