Remote radio frequency (RF) AGC loop
First Claim
1. An apparatus supporting a RF automatic gain control (AGC) loop, comprising:
- a first module and a second module which are coupled together via a single RF transmission cable, wherein both said first module and said second module operate on a single automatic gain control (AGC) loop, wherein said second module comprises a power amplifier,wherein the first module sends a first signal to said second module over said single RF transmission cable at a first frequency, andwherein the first module adjusts a gain of said AGC loop based on a second signal sent from said second module to said first module over said single RF transmission cable, and wherein said second signal has a second frequency that is different than said first frequency of said first signal.
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Accused Products
Abstract
Approaches for supporting a RF automatic gain control (AGC) loop. A first module and a second module are coupled together via a single RF transmission cable. The first module might be a Remote PHY Device (RPD). The second module may comprise a power amplifier. Both the first and second module operate on a single automatic gain control (AGC) loop. The first module sends a first signal to the second module over the single RF transmission cable at a first frequency or frequency range. The first module may adjust a gain of the AGC loop based on a second signal sent from the second module to the first module over the single RF transmission cable. The second, counterpropagating signal has a different frequency or frequency range than the first frequency of the first signal, e.g., the second frequency or frequency range may be lower than that of the first frequency.
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Citations
18 Claims
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1. An apparatus supporting a RF automatic gain control (AGC) loop, comprising:
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a first module and a second module which are coupled together via a single RF transmission cable, wherein both said first module and said second module operate on a single automatic gain control (AGC) loop, wherein said second module comprises a power amplifier, wherein the first module sends a first signal to said second module over said single RF transmission cable at a first frequency, and wherein the first module adjusts a gain of said AGC loop based on a second signal sent from said second module to said first module over said single RF transmission cable, and wherein said second signal has a second frequency that is different than said first frequency of said first signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus supporting a RF automatic gain control (AGC) loop, comprising:
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a first module and a second module which are coupled together via a single RF transmission cable, wherein both said first module and said second module operate on a single automatic gain control (AGC) loop, wherein said second module comprises a power amplifier, wherein the first module sends a first signal to said second module over said single RF transmission cable at a first frequency range, and wherein the first module adjusts a gain of said AGC loop based on a second signal sent from said second module to said first module over said single RF transmission cable, and wherein said second signal has a second frequency range that is different than said first frequency range of said first signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification