Channel Calibration Apparatus and Method
First Claim
1. An apparatus, comprising:
- a processor; and
a non-transitory computer readable storage medium storing a program for execution by the processor, the program including instructions to;
detect self-loopback responses, transmission responses, and receiving responses of a to-be-calibrated antenna and a reference antenna;
determine second transmission responses and second receiving responses of the to-be-calibrated antenna and the reference antenna according to the transmission responses, the receiving responses, and transport channel responses of the to-be-calibrated antenna and the reference antenna;
determine a transmit channel compensation response and a receive channel compensation response of the to-be-calibrated antenna according to the second transmission responses and the second receiving responses of the to-be-calibrated antenna and the reference antenna after determining the second transmission responses and the second receiving responses;
compensate for a transmit channel of the to-be-calibrated antenna according to the transmit channel compensation response, wherein a transmit channel response of the to-be-calibrated antenna is consistent with t transmit channel response of the reference antenna; and
compensate for a receive channel of the to-be-calibrated antenna according to the receive channel compensation response, wherein a receive channel response of the to-be-calibrated antenna is consistent with a receive channel response of the reference antenna;
wherein the self-loopback response of the to-be-calibrated antenna is a ratio of a signal sent by a transmit channel of the to-be-calibrated antenna to a signal received by a receive channel of the to-be-calibrated antenna in response to the signal sent by the transmit channel of the to-be-calibrated antenna being received by the receive channel of the to-be-calibrated antenna;
wherein the transmission response of the to-be-calibrated antenna is a ratio of the signal sent by the transmit channel of the to-be-calibrated antenna to a signal received by a receive channel of a calibration channel in response to the signal sent by the transmit channel of the to-be-calibrated antenna being received by the receive channel of the calibration channel;
wherein the receiving response of the to-be-calibrated antenna is a ratio of a signal sent by a transmit channel of a calibration channel to a signal received by a receive channel of the to-be-calibrated antenna in response to the signal sent by the transmit channel of the calibration channel being received by the receive channel of the to-be-calibrated antenna;
wherein the self-loopback response of the reference antenna is a ratio of a signal sent by a transmit channel of the reference antenna to a signal received by a receive channel of the reference antenna in response to the signal sent by the transmit channel of the reference antenna being received by the receive channel of the reference antenna;
wherein the transmission response of the reference antenna is a ratio of the signal sent by the transmit channel of the reference antenna to the signal received by the receive channel of a calibration channel in response to the signal sent by the transmit channel of the reference antenna being received by the receive channel of the calibration channel; and
wherein the receiving response of the reference antenna is a ratio of the signal sent by the transmit channel of a calibration channel to the signal received by the receive channel of the reference antenna in response to the signal sent by the transmit channel of the calibration channel being received by the receive channel of the reference antenna.
1 Assignment
0 Petitions
Accused Products
Abstract
A channel calibration apparatus includes a detection module, configured to detect self-loopback responses, transmission responses, and receiving responses of a to-be-calibrated antenna and a reference antenna. The apparatus also includes a processing module, configured to determine, according to the transmission responses, and the receiving responses of the to-be-calibrated antenna and the reference antenna, and according to transport channel responses, transmission responses and receive channel responses that are of the to-be-calibrated antenna and the reference antenna and obtained after processing of transmit channel responses, and then determine a transmit channel compensation response and a receive channel compensation response that are of the to-be-calibrated antenna. The processing module is also configured to make compensation for a transmit channel of the to-be-calibrated antenna according to the transmit channel compensation response, and make compensation for a receive channel of the to-be-calibrated antenna according to the receive channel compensation response.
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Citations
19 Claims
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1. An apparatus, comprising:
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a processor; and a non-transitory computer readable storage medium storing a program for execution by the processor, the program including instructions to; detect self-loopback responses, transmission responses, and receiving responses of a to-be-calibrated antenna and a reference antenna; determine second transmission responses and second receiving responses of the to-be-calibrated antenna and the reference antenna according to the transmission responses, the receiving responses, and transport channel responses of the to-be-calibrated antenna and the reference antenna; determine a transmit channel compensation response and a receive channel compensation response of the to-be-calibrated antenna according to the second transmission responses and the second receiving responses of the to-be-calibrated antenna and the reference antenna after determining the second transmission responses and the second receiving responses; compensate for a transmit channel of the to-be-calibrated antenna according to the transmit channel compensation response, wherein a transmit channel response of the to-be-calibrated antenna is consistent with t transmit channel response of the reference antenna; and compensate for a receive channel of the to-be-calibrated antenna according to the receive channel compensation response, wherein a receive channel response of the to-be-calibrated antenna is consistent with a receive channel response of the reference antenna; wherein the self-loopback response of the to-be-calibrated antenna is a ratio of a signal sent by a transmit channel of the to-be-calibrated antenna to a signal received by a receive channel of the to-be-calibrated antenna in response to the signal sent by the transmit channel of the to-be-calibrated antenna being received by the receive channel of the to-be-calibrated antenna; wherein the transmission response of the to-be-calibrated antenna is a ratio of the signal sent by the transmit channel of the to-be-calibrated antenna to a signal received by a receive channel of a calibration channel in response to the signal sent by the transmit channel of the to-be-calibrated antenna being received by the receive channel of the calibration channel; wherein the receiving response of the to-be-calibrated antenna is a ratio of a signal sent by a transmit channel of a calibration channel to a signal received by a receive channel of the to-be-calibrated antenna in response to the signal sent by the transmit channel of the calibration channel being received by the receive channel of the to-be-calibrated antenna; wherein the self-loopback response of the reference antenna is a ratio of a signal sent by a transmit channel of the reference antenna to a signal received by a receive channel of the reference antenna in response to the signal sent by the transmit channel of the reference antenna being received by the receive channel of the reference antenna; wherein the transmission response of the reference antenna is a ratio of the signal sent by the transmit channel of the reference antenna to the signal received by the receive channel of a calibration channel in response to the signal sent by the transmit channel of the reference antenna being received by the receive channel of the calibration channel; and wherein the receiving response of the reference antenna is a ratio of the signal sent by the transmit channel of a calibration channel to the signal received by the receive channel of the reference antenna in response to the signal sent by the transmit channel of the calibration channel being received by the receive channel of the reference antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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detecting self-loopback responses, transmission responses, and receiving responses of a to-be-calibrated antenna and a reference antenna; determining second transmission responses and second receiving responses of the to-be-calibrated antenna and the reference antenna according to the self-loopback responses, the transmission responses, the receiving responses, and transport channel responses of the to-be-calibrated antenna and the reference antenna; determining a transmit channel compensation response and a receive channel compensation response of the to-be-calibrated antenna, according to the transmission responses and the receiving responses of the to-be-calibrated antenna and the reference antenna, after determining the second transmission responses and the second receiving responses; compensating for a transmit channel of the to-be-calibrated antenna according to the transmit channel compensation response, wherein a transmit channel response of the to-be-calibrated antenna is consistent with a transmit channel response of the reference antenna; and compensating for a receive channel of the to-be-calibrated antenna according to the receive channel compensation response, wherein a receive channel response of the to-be-calibrated antenna is consistent with a receive channel response of the reference antenna; wherein the self-loopback response of the to-be-calibrated antenna is a ratio of a signal sent by a transmit channel of the to-be-calibrated antenna to a signal received by a receive channel of the to-be-calibrated antenna in response to the signal sent by the transmit channel of the to-be-calibrated antenna being received by the receive channel of the to-be-calibrated antenna; wherein the transmission response of the to-be-calibrated antenna is a ratio of the signal sent by a transmit channel of the to-be-calibrated antenna to a signal received by a receive channel of a calibration channel in response to the signal sent by the transmit channel of the to-be-calibrated antenna being received by the receive channel of the calibration channel; wherein the receiving response of the to-be-calibrated antenna is a ratio of a signal sent by a transmit channel of a calibration channel to the signal received by a receive channel of the to-be-calibrated antenna in response to the signal sent by the transmit channel of the calibration channel being received by the receive channel of the to-be-calibrated antenna; wherein the self-loopback response of the reference antenna is a ratio of a signal sent by a transmit channel of the reference antenna to a signal received by a receive channel of the reference antenna in response to the signal sent by the transmit channel of the reference antenna being received by the receive channel of the reference antenna; wherein the transmission response of the reference antenna is a ratio of the signal sent by a transmit channel of the reference antenna to the signal received by a receive channel of the calibration channel in response to the signal sent by the transmit channel of the reference antenna being received by the receive channel of the calibration channel; and wherein the receiving response of the reference antenna is a ratio of the signal sent by the transmit channel of the calibration channel to the signal received by the receive channel of the reference antenna in response to the signal sent by the transmit channel of the calibration channel being received by the receive channel of the reference antenna. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A non-transitory computer readable medium that stores a program for execution by a processor, the program including instructions to:
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detect self-loopback responses, transmission responses, and receiving responses of a to-be-calibrated antenna and a reference antenna; determine second transmission responses and second receiving responses of the to-be-calibrated antenna and the reference antenna according to the transmission responses, the receiving responses, and transport channel responses of the to-be-calibrated antenna and the reference antenna; determine a transmit channel compensation response and a receive channel compensation response of the to-be-calibrated antenna according to the second transmission responses and the second receiving responses of the to-be-calibrated antenna and the reference antenna after determining the second transmission responses and the second receiving responses; compensate for a transmit channel of the to-be-calibrated antenna according to the transmit channel compensation response, wherein a transmit channel response of the to-be-calibrated antenna is consistent with t transmit channel response of the reference antenna; and compensate for a receive channel of the to-be-calibrated antenna according to the receive channel compensation response, wherein a receive channel response of the to-be-calibrated antenna is consistent with a receive channel response of the reference antenna; wherein the self-loopback response of the to-be-calibrated antenna is a ratio of a signal sent by a transmit channel of the to-be-calibrated antenna to a signal received by a receive channel of the to-be-calibrated antenna in response to the signal sent by the transmit channel of the to-be-calibrated antenna being received by the receive channel of the to-be-calibrated antenna; wherein the transmission response of the to-be-calibrated antenna is a ratio of the signal sent by the transmit channel of the to-be-calibrated antenna to a signal received by a receive channel of a calibration channel in response to the signal sent by the transmit channel of the to-be-calibrated antenna being received by the receive channel of the calibration channel; wherein the receiving response of the to-be-calibrated antenna is a ratio of a signal sent by a transmit channel of a calibration channel to a signal received by a receive channel of the to-be-calibrated antenna in response to the signal sent by the transmit channel of the calibration channel being received by the receive channel of the to-be-calibrated antenna; wherein the self-loopback response of the reference antenna is a ratio of a signal sent by a transmit channel of the reference antenna to a signal received by a receive channel of the reference antenna in response to the signal sent by the transmit channel of the reference antenna being received by the receive channel of the reference antenna; wherein the transmission response of the reference antenna is a ratio of the signal sent by a transmit channel of the reference antenna to the signal received by a receive channel of a calibration channel in response to the signal sent by the transmit channel of the reference antenna being received by the receive channel of the calibration channel; and wherein the receiving response of the reference antenna is a ratio of the signal sent by a transmit channel of a calibration channel to the signal received by a receive channel of the reference antenna in response to the signal sent by the transmit channel of the calibration channel being received by the receive channel of the reference antenna.
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Specification