Device and method for calibrating output data of MMSE receiver
A technology for outputting data and receiving data. It is applied to the shaping network, transmission system, electrical components, etc. in the transmitter/receiver. sexual effect
Active Publication Date: 2010-09-08
LEADCORE TECH
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However, it can be seen from the above description that for the estimated data output by MMSE-BLE, since the original transmitted data in the estimated data has been scaled by diag(W), if the demodulation is directly based on the prior Euclidean distance, a certain Error, resulting in performance degradation, especially in high-order modulation such as 64QAM, the performance degradation is more obvious
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The invention relates to a device and a method for calibrating output data of an MMSE receiver. The device can compensate for the zooming caused by an MMSE-BLE equalizer and improve the receiving performance during modulation, especially high-order modulation. Therefore, the device comprises a calibration coefficient generation module and a calibration module, wherein the calibration coefficient generation module estimates a calibration coefficient according to the receiving data and / or output data of the MMSE receiver, and the calibration module utilizes the calibration coefficient to calibrate the range of sending data of the output data of the MMSE receiver or the Euclidean distance used when the output data is demodulated.
Description
A device and method for calibrating output data of MMSE receiver technical field The invention relates to a joint detection technology based on minimum mean square error-block equalization (MMSE-BLE), in particular to a device and method for calibrating the output data amplitude of an MMSE receiver. Background technique Quadrature Amplitude Modulation (QAM) uses two orthogonal carriers to modulate two parallel signals respectively, which can be equivalent to two pulse amplitude modulation (PAM) respectively carried on the orthogonal carriers. In the mobile communication system, QAM has obtained Wide range of applications. Among them, high-order modulations such as 16QAM and 64QAM can use bandwidth more effectively and support high-speed transmission. The 3GPP HSPA technology uses 16QAM, and the further evolution of High Speed Packet Access (HSPA) technology is HSPA+ The 64QAM method is further introduced. Joint detection technology is a suboptimal method of multi-user...
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Login to View More IPC IPC(8): H04L25/03H04L25/02H04L27/38H04B1/707
Inventor 王乃博李丹妮
Owner LEADCORE TECH