REMOTE DIAGNOSIS AND CANCELLATION OF PASSIVE INTERMODULATION
First Claim
1. A system, comprising:
- a processor; and
a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising;
cycling a test signal at a defined rate, wherein the test signal is in a first band and is transmitted by a transmitter;
receiving a transmission in a second band by a receiver; and
determining that an intermodulation product from the test signal is present in the transmission based on matching a cyclical noise measurement of the transmission to the defined rate.
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Accused Products
Abstract
A passive intermodulation detection system is provided to remotely identify passive intermodulation at a base station site and diagnose the type of intermodulation and location of the non-linearity that is the source of the passive intermodulation. The passive intermodulation detection system can generate a test signal in a first band that is transmitted by an antenna. Another antenna can receive a signal in another band, and the passive intermodulation detection system can analysis the received signal to determine whether an intermodulation product due to a non-linearity is present. Based on the type of intermodulation product, period, order, frequency, and etc., the type and location of the non-linearity can be identified.
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Citations
20 Claims
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1. A system, comprising:
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a processor; and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising; cycling a test signal at a defined rate, wherein the test signal is in a first band and is transmitted by a transmitter; receiving a transmission in a second band by a receiver; and determining that an intermodulation product from the test signal is present in the transmission based on matching a cyclical noise measurement of the transmission to the defined rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method, comprising:
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transmitting, by a device comprising a processor, a signal simulating a transmission to a mobile device cyclically at a predetermined periodicity, wherein the signal is in a first band and is transmitted via a transmitter; receiving, by the device, a transmission in a second band by a receiver; and determining, by the device, that an intermodulation product from the signal is present in the transmission based on matching a noise pattern of the transmission to the predetermined period of the signal. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A computer-readable storage device storing executable instructions that, in response to execution, cause a device comprising a processor to perform operations, comprising:
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transmitting a test signal simulating a transmission to a mobile device cyclically according to a predetermined period, wherein the test signal is in a first band and is transmitted via a transmitter; receiving a transmission in a second band by a receiver; and determining that an intermodulation product from the test signal is present in the transmission based on a match being determined between a noise pattern of the transmission and the predetermined period of the test signal. - View Dependent Claims (19, 20)
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Specification