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Novel high integrated level insertible Rake receiver system

A highly integrated, receiver technology, applied in transmission systems, electrical components, etc., to solve problems such as unusability

Inactive Publication Date: 2006-02-15
ZHEJIANG HUALI COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the CDMA system is broadband transmission and all channels share frequency resources, the CDMA system can use the RAKE reception technology, while the other two multiple access technologies TDMA and FDMA cannot be used.

Method used

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  • Novel high integrated level insertible Rake receiver system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Embodiment 1: with reference to attached figure 1 . attached figure 1 is a system block diagram of a new, highly integrated, embeddable Rake receiver.

[0081] The working process of the Rake receiver system: the original I / Q data from the analog baseband circuit is input to the integral subsampler of each Finger demodulation unit of the Rake receiver. The output of each Finger integral subsampler is sent to the Finger randomization code descrambling unit, and then divided into three channels, one channel is sent to the time-synchronized random sequence descrambler, the second channel is sent to the time-advanced random sequence descrambler, and the third channel is sent to the time-advanced random sequence descrambler. The path is sent to the time-delayed random sequence descrambler. (The content described below, unless otherwise specified, is for the inside of the Finger demodulation unit.)

[0082] The output of the time-synchronous random sequence descrambler ...

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Abstract

The invention provides a new embedded Rake receiver system with high integrity, which integrates a stochastic sequence code generator, an orthogonal channel code generator, a stochastic sequence descrambler, a orthogonal code-channel separation demodulator, a vector dot product device, and modules for signal power detection, Finger time track, Finger lock indication, channel estimation, dephasing rolling merge, automatic frequency control, estimation for signal-noise rate, automatic receiving gain control, to realize corresponding necessary functions for Rake receiver. This receiver can almost finish all 3G receiver's functions except channel decode, fits well to realize in embedded communication chip by hardware way.

Description

Technical field: [0001] The invention proposes a novel high-integration embeddable Rake receiver system, which can be widely used in various high-integration commercial 3G mobile communication terminals and base station transceiver equipment. The patented technology proposed by the present invention belongs to the field of mobile communication. Background technique: [0002] In mobile communication, the environment between the mobile station and the base station is complex. The radio wave signal sent by the transmitter is reflected and refracted by various obstacles such as buildings, hills, and woods during transmission, and reaches the receiver. The signal will not be a signal from one path, but a multipath composite signal. For non-CDMA mobile communication systems, only complex resistance techniques can be used to reduce the impact. For mobile communication systems using CDMA technology (including CDMA systems in FDD mode and TDD mode), due to the relevant characterist...

Claims

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Application Information

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IPC IPC(8): H04B1/707H04B1/7115
Inventor 藏侃许晓斌
Owner ZHEJIANG HUALI COMM TECH
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