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A radio receiver in a wireless communications system

A radio receiver and radio signal technology, applied in baseband systems, transmission systems, digital transmission systems, etc., can solve problems such as performance degradation

Active Publication Date: 2013-07-24
NVIDIA TECH UK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The suboptimal nature of conventional 3GPP receivers based on rake processing can cause significant performance degradation, especially with downlink data rates increasing from 384kbps in WCDMA Release 99 to high-speed downlink packet access (HDSPA) rates of several Mbps

Method used

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  • A radio receiver in a wireless communications system
  • A radio receiver in a wireless communications system
  • A radio receiver in a wireless communications system

Examples

Experimental program
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Embodiment Construction

[0020] figure 1 is a schematic block diagram of an apparatus for transmitting and receiving signals in a wireless communication system. Such a device can be implemented in many different ways, but according to the figure 1 , a series of RF / IF stages 32 are arranged to receive and transmit radio signals (TX, RX) through one or more antennas 20 . Embodiments of the present invention discussed here are mainly related to receiving wireless signals, so no further reference will be made to sending signals. The received signal at the output of the RF / IF stage is typically converted to baseband, where an ADC converts the analog signal into digital samples. figure 1 Block 32 of E comprises means for processing the received radio signal and providing digital signal samples γ(k). This can be achieved in different ways known in the art and not discussed further here.

[0021] The samples γ(k) are provided to a data transfer engine 30 in communication with processor 22 , instruction me...

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PUM

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Abstract

Techniques are described for optimizing processing facilities of a receiver in a wireless communication environment, taking into consideration processing performance set against the computing resources and / or power consumption required to obtain the processing performance. An embodiment of a radio receiver is described that includes a channel equalization means arranged to receive digital samples of an incoming signal and to generate an equalized output, said channel equalization means including means for processing said digital samples in accordance with an equalizer algorithm utilizing a set of equalizer parameters. The receiver can include means for estimating at least one parameter of a channel over which the signal has been received, and means for selecting at least one of said equalizer parameters based on at least one of said estimated channel parameters. Related methods, algorithms, and computer program products are also described.

Description

technical field [0001] The invention relates to a radio receiver in a wireless communication system and to a method for processing radio signals. Background technique [0002] The transmission of radio signals carrying data in modern wireless communications can be carried out according to a number of different communication systems, usually specified by standards. There is an increasing need for devices that can operate to support more than one of these wireless communication systems. A mobile radio receiver device includes an analog radio frequency (RF) / intermediate frequency (IF) stage arranged to receive and transmit wireless signals through one or more antennas. The output of the RF / IF stage is typically converted to baseband, where an analog-to-digital converter (ADC) converts the incoming analog signal to digital samples, which are thereafter processed for signal detection and confidence-valued form to decode the data. The ADC may alternatively operate directly at t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/02H04L25/03
CPCH04L2025/03566H04L2025/03726H04B2201/7071H04L25/03114H04L25/0212
Inventor C·卢施S·赫克特S·沃克S·阿尔普雷斯P·琼斯
Owner NVIDIA TECH UK