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Methods and Signal Handlers for Handling Signals

A technology for processing signals and signals, applied in the field of signal processing

Inactive Publication Date: 2017-07-11
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes it necessary for the receiver to provide an appropriate channel estimate of the transmission channel

Method used

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  • Methods and Signal Handlers for Handling Signals
  • Methods and Signal Handlers for Handling Signals
  • Methods and Signal Handlers for Handling Signals

Examples

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Embodiment Construction

[0017] Aspects and embodiments are described with reference to the drawings, wherein like reference numerals are generally utilized to refer to like elements throughout. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects of the embodiments. It may be apparent, however, to one skilled in the art that one or more aspects of the embodiments may be practiced with a lesser degree of specific detail. In other instances, known structures and elements are shown in schematic form in order to facilitate describing one or more aspects of the embodiments. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention.

[0018] Additionally, although a particular feature or aspect of an embodiment may be disclosed with respect to only one of several implementations, such fe...

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Abstract

The invention discloses a signal processing method and a signal processor. The method comprises: receiving a signal in a multi-carrier mobile communication system, the signal comprising at least two reference symbols of different types; determining a first channel estimate at a symbol position of a first reference symbol of a first type; determining at a second channel estimate at a symbol position of a second reference symbol of a second type; and determining a quantity as a function of a cross-correlation between the first and second channel estimates.

Description

technical field [0001] The invention relates to a method for processing signals in a multi-carrier mobile communication system. Background technique [0002] A wireless radio transmission system can be configured on the basis of transmitters and receivers capable of transmitting and receiving multi-carrier data signals. An example of a multi-carrier radio transmission system is Orthogonal Frequency Division Multiplexing (OFDM), where an OFDM transmitter broadcasts information consisting of symbols containing multiple equally spaced carrier frequencies. The characteristics of a wireless communication channel typically change over time due to changes in the transmission path. In order to demodulate OFDM modulated data in the presence of large temporal variations of the transmission channel, knowledge about the frequency response of the transmission channel is required. This necessitates that the receiver provide an appropriate channel estimate of the transmission channel. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26
CPCH04L5/0007H04L5/005H04L25/0224H04L27/2665H04W64/00H04L25/0222H04L25/0232H04L27/2647
Inventor C.卡博内利M.霍瓦特
Owner APPLE INC