Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Novel high integrated level insertible Rake receiver system

A receiver and random sequence technology, applied in transmission systems, electrical components, etc., can solve problems such as unusable

Inactive Publication Date: 2008-01-23
ZHEJIANG HUALI COMM TECH
View PDF4 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel high integrated level insertible Rake receiver system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Embodiment 1: with reference to accompanying drawing 1. Accompanying drawing 1 is the system block diagram that can embed Rake receiver.

[0080] 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 multipath receiving finger demodulation unit of the Rake receiver. The output of each multipath receiving rake finger integral subsampler is sent to the multipath receiving rake finger randomization code descrambling unit, and then divided into three paths, one path is sent to the time synchronous random sequence descrambler, and the second path is sent to the time advance The random sequence descrambler, the third channel is sent to the time-delayed random sequence descrambler. (The content described below, unless otherwise specified, is aimed at the interior of the multipath receiving rake finger demodulation unit.)

[0081] The output of the time-synchronous random sequence de...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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 an embedded Rake receiver system, which can be widely used in various 3G mobile communication terminals and base station transceiver equipment. The patented technology proposed by the 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 characteristics of CDMA, as long as the delay difference between paths is...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/707H04B1/7115
Inventor 臧侃许晓斌
Owner ZHEJIANG HUALI COMM TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com