Data transmission method with phase shift error correction
First Claim
1. A data transmission method with phase shift error correction comprising:
- transmitting through a network a transmission signal, wherein the transmission signal comprises a reference signal component having a predetermined frequency and a data signal component;
receiving the transmission signal, wherein the received transmission signal includes a phase shift error caused by the network, wherein the phase shift error is in both the received reference signal component and the received data signal component;
generating a multiplier signal at a receiver having the predetermined reference frequency;
using the multiplier signal to determine the phase shift error in the reference signal component of the received transmission signal; and
subtracting the determined phase shift error from the data signal component having the phase shift error.
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Abstract
A data transmission method with phase shift error correction comprising: transmitting through a network a transmission signal, wherein the transmission signal comprises a reference signal component having a predetermined frequency and a data signal component; receiving the transmission signal, wherein the received transmission signal includes a phase shift error caused by the network, wherein the phase shift error is in both the received reference signal component and the received data signal component; generating a multiplier signal at a receiver having the predetermined reference frequency; using the multiplier signal to determine the phase shift error in the received transmission signal; and correcting the received data signal component using the determined phase shift error.
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Citations
5 Claims
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1. A data transmission method with phase shift error correction comprising:
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transmitting through a network a transmission signal, wherein the transmission signal comprises a reference signal component having a predetermined frequency and a data signal component; receiving the transmission signal, wherein the received transmission signal includes a phase shift error caused by the network, wherein the phase shift error is in both the received reference signal component and the received data signal component; generating a multiplier signal at a receiver having the predetermined reference frequency; using the multiplier signal to determine the phase shift error in the reference signal component of the received transmission signal; and subtracting the determined phase shift error from the data signal component having the phase shift error. - View Dependent Claims (2, 3, 4, 5)
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Specification