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Spread-spectrum receiver

A technology of receivers and registers, applied in the field of spread spectrum receivers, which can solve the problems of unrecognized reception of reverse spread spectrum data, merging, etc.

Inactive Publication Date: 2009-08-05
RENESAS ELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] As described above, the conventional RAKE combiner and the RAKE combining method do not recognize from which base station the despread data is received, and thus cannot perform combining processing of the despread data for each of the base stations by classifying the data according to the base stations
Therefore, conventional RAKE combiners and RAKE combining methods have the problem of combining baseband signals from multiple base stations

Method used

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Embodiment Construction

[0029] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0030] figure 1 is a structural diagram of the spread spectrum receiver of the present invention. Embodiment 1 is constructed by an antenna 1, a wireless circuit 2, and a spread spectrum receiver H1, and the spread spectrum receiver H1 includes rake fingers 31, rake fingers 32, rake fingers 33, rake fingers 34, rake fingers 35, rake fingers 3N, RAKE fingers Receiver 4 , demodulated output 11 , demodulated base station number 230 and parameter register 6 .

[0031] The wireless circuit 2 is connected to the fingers 31 , 32 , 33 , 34 , 35 and 3N via the baseband signal 21 . The fingers 31 to 3N, each of which is preset with a base station number, are connected to the RAKE combiner H41 via the following data and signals: symbol data H111 of the finger 31, from the RAKE combiner H41 to The read signal H112 of the rake finger 31, the symbol data H121 of the ...

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Abstract

The invention provides a spread-spectrum receiver. In order to support channels for the HSUPA standard, a base station number is given to each finger at the time of RAKE reception so that the base station numbers can be discriminated from each other, thereby allowing RAKE reception to be performed separately for each different base station. Since a function to identify a base station to which each finger is assigned is provided, data from a base station 0 and data from a base station 1 can be combined as data from different base stations and thus correct data for each base station can be received.

Description

technical field [0001] The present invention relates to a spread spectrum receiver, and more particularly to channel reception from a plurality of base stations at different timings. Background technique [0002] In recent years, the proliferation of mobile phones has increased the utilization of Internet access services such as e-mail using mobile phones. As the resolution of digital cameras and screens installed in mobile phones becomes higher, there is an increasing demand for high-speed packet communication for transmitting / receiving data. [0003] 3GPP, which is a standardization organization of the third generation mobile phone system, has specified HSDPA and HSUPA as specifications for high-speed packet communication (hereinafter, referred to as the HSUPA standard). HSDPA is a technology for obtaining high speed in so-called downlink communication in the direction from the base station to the terminal, and HSUPA is a technology for obtaining high speed in the so-call...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/707H04B1/7073H04B1/7115H04W88/02
CPCH04B2201/7071H04B2201/70702H04B1/712
Inventor 富田隆行
Owner RENESAS ELECTRONICS CORP
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