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Channel evaluation by adaptive frequency hopping method

A frequency channel and wireless system technology, applied in the field of evaluation of frequency channel transmission quality, can solve problems such as unreliable conclusions

Inactive Publication Date: 2007-05-16
INTEL MOBILE COMM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when using these methods, the determination of an interference component in a frequency channel, or whether a frequency channel is defined and classified as an interference source can only be concluded very unreliably

Method used

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Examples

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Embodiment Construction

[0016] An exemplary embodiment of the present invention will be explained in more detail later.

[0017] A wireless communication system based on one or more of the wireless standards mentioned can spread spectrum by data transmission on different frequency channels, the communication system operates using an adaptive channel hopping method, which also uses time division It operates by multitasking, which means that the transmission and reception of data is based on a time slot method in which transmission and reception are only possible in the time slots provided for this purpose. When receiving a data signal, a data packet error rate and a bit error rate are measured, in addition, the field strength of the received data signal is also measured, the measurement is carried out in a time interval, wherein the measurement unit is authorized to The transmission takes place, that is, within a time interval in a transmission slot. The measurement of the packet error rate and bit e...

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Abstract

Channel qualification for an adaptive frequency hopping method by means of bit or packet error rate measurement and simultaneous field strength measurement. In a method for qualification of a frequency channel in a wire-free communication system, data is transmitted on different frequency channels by means of an adaptive frequency hopping method. The transmission and reception are carried out in time slots using a time slot method which is based on the radio standard. In order to qualify the transmission quality of the frequency channels, data packet error rates and / or bit error rates and the field strength of the received data signal are measured, and the measured field strength is compared with a threshold value field strength in order to make a selection decision.

Description

technical field [0001] The present invention relates to an evaluation method of frequency channel transmission quality in a wireless system, especially in a wireless communication system using a frequency hopping method, and more to a selection method based on it. Background technique [0002] In the case of wireless systems, especially in the case of wireless communication systems that allow spread spectrum by data transmission on different frequency channels (for example, in the case of frequency hopping in Bluetooth), it is possible to mask Certain frequency channels, in order to avoid interference effects in the transmission in this method. In the case of the so-called Adaptive Frequency Hopping (AFH) method, the masking of the frequency channels and the comparison with the frequency channels is carried out automatically. In general, there are two ways in which a frequency channel is thus classified or rated, and there is a distinction between the two, one of which is c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/38H04B1/713H04W72/54
CPCH04B1/715H04W72/08H04B2001/7154H04W72/54
Inventor B·菲贝克M·哈梅斯R·赫尔法杰A·尤瓦赫
Owner INTEL MOBILE COMM GMBH