Communications apparatus, communications system and method of determining signal isolation
First Claim
1. A communications apparatus configured to provide wireless network access in accordance with a communications standard that specifies a transmit OFF power threshold requirement, the apparatus comprising:
- a hardware subsystem comprising a test signal control component, a duplexer component, and Radio Frequency processing components, the Radio Frequency processing components comprising;
a transmitter chain portion having an output operably coupled to a transmit side port of the duplexer component; and
a receiver chain portion having a signal sensitivity threshold associated and is operably coupled to a receive side port of the duplexer component;
whereinthe test signal control component is arranged to cooperate with the transmitter chain to generate a test signal, a portion of the test signal being leakable by the duplexer component from the transmit side port to the receive side port thereof; and
the test signal control component is configured to ensure that any irradiated power of the test signal complies with the transmit OFF power threshold requirement and the portion of the test signal leaked is above the signal sensitivity threshold of the receiver chain portion.
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Accused Products
Abstract
A communications apparatus includes a hardware subsystem including a test signal control component, a duplexer component, and Radio Frequency processing components. The Radio Frequency processing components include a transmitter chain portion and a receiver chain portion having a signal sensitivity threshold associated therewith, to a receive side port of the duplexer component. The test signal control component is arranged to cooperate with the transmitter chain to generate a test signal. A portion of the test signal control component is leaked by the duplexer component. The test signal control component is also configured to ensure that any irradiated power of the test signal complies with the transmit OFF power threshold requirement and the portion of the test signal leaked is above the signal sensitivity threshold of the receiver chain portion.
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Citations
20 Claims
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1. A communications apparatus configured to provide wireless network access in accordance with a communications standard that specifies a transmit OFF power threshold requirement, the apparatus comprising:
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a hardware subsystem comprising a test signal control component, a duplexer component, and Radio Frequency processing components, the Radio Frequency processing components comprising; a transmitter chain portion having an output operably coupled to a transmit side port of the duplexer component; and a receiver chain portion having a signal sensitivity threshold associated and is operably coupled to a receive side port of the duplexer component; wherein the test signal control component is arranged to cooperate with the transmitter chain to generate a test signal, a portion of the test signal being leakable by the duplexer component from the transmit side port to the receive side port thereof; and the test signal control component is configured to ensure that any irradiated power of the test signal complies with the transmit OFF power threshold requirement and the portion of the test signal leaked is above the signal sensitivity threshold of the receiver chain portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of determining a signal leakage profile of a duplexer component in a communications apparatus, the method comprising:
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generating a test signal by a transmitter chain portion; transmitting the test signal to the duplexer component; receiving, by a receiver chain portion, a portion of the test signal leaked from the duplexer component in response to the test signal being applied to the duplexer component; and measuring a power of the portion of the test signal leaked from the duplex component, wherein an irradiated power of the test signal complies with a transmit OFF power threshold requirement and the portion of the test signal leaked from the duplex component is above a signal sensitivity threshold of the receiver chain portion.
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Specification