Unlock instant, AI-driven research and patent intelligence for your innovation.

Device and method for determining the deviation of the carrier frequency of a mobile radio device from the carrier frequency of a base station

A mobile wireless and base station technology, which is applied in the field of devices that determine the difference between the carrier frequency of a mobile wireless device and the base station carrier frequency, can solve problems such as high workload, and achieve increased quality, reduced Doppler effect, and less effort. Effect

Inactive Publication Date: 2005-09-07
INTEL MOBILE COMM GMBH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] In the known example of mobile radio devices, the difference between the mobile radio device carrier frequency and the base station carrier frequency can be calculated entirely in firmware by a digital signal processor; If the number of paths is investigated, all data is transmitted to the DSP on a single path basis; this creates a high workload on both the DSP and the data bus used to transmit the data

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
  • Device and method for determining the deviation of the carrier frequency of a mobile radio device from the carrier frequency of a base station
  • Device and method for determining the deviation of the carrier frequency of a mobile radio device from the carrier frequency of a base station
  • Device and method for determining the deviation of the carrier frequency of a mobile radio device from the carrier frequency of a base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] figure 1 Represent a schematic circuit diagram of a circuit 1; this circuit 1 is a device of the present invention (such as image 3 shown) in one of the components; due to image 3 The method of operation of the preferred embodiment shown is given by figure 1 Therefore, the circuit 1 will be described first.

[0053] The circuit 1 is integrated in a mobile wireless device, and the pilot signal received by the mobile wireless device is demodulated in a RAKE receiver and converted into pilot symbols 100; the pilot symbols 100 are obtained by a Data rate (for example: 15ks / s) is transmitted to the circuit 1. This example is based on the assumption that the base station originally transmitting the pilot symbol 100 is operating in the STTD mode of operation, which is assisted by two antennas 1 and 2. transmit its signal. The pilot symbols 100 are split into two data paths in the circuit 1, wherein the pilot symbols 101 associated with antenna 1 are processed in one data...

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 relates to a device for determining the frequency deviation (105) of a mobile radio device from a base station that emits a sequence of symbols. Said device comprises a unit (6-11) for calculating terms, whereby a term is composed of two symbols of the sequence received by the mobile radio device, and the term is used to determine the phase difference of the two symbols. The device further comprises a unit (14, 15) for establishing groups on the basis of the terms, whereby a term is associated with a group by means of the features of the symbols on which it is based, and a unit (39) for calculating the deviation (105) by means of a group.

Description

technical field [0001] The present invention relates to a device for determining the difference between a mobile radio device's carrier frequency and a base station's carrier frequency, as well as its corresponding method. Background technique [0002] In order to transmit symbols between a base station and a mobile wireless device, the symbols are modulated onto a carrier frequency in the transmitter and demodulated in the receiver; therefore, the mobile wireless device must use the same carrier frequency as the base station. However, when there is a difference in mobile wireless device carrier frequency, this difference must be determined so that it can then be compensated for. For example, the cause of this frequency difference in the mobile radio is due to the tolerance of the oscillator that generates the carrier frequency, and another cause of the frequency shift is temperature disturbances; in addition, the mobile radio and the station The relative movement between t...

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 Applications(China)
IPC IPC(8): H04B7/26H04L1/06H04L27/00
CPCH04L1/0618H04B7/2668H04L27/0014H04L2027/003H04W56/0035
Inventor B·贝克H·纽豪斯
Owner INTEL MOBILE COMM GMBH