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Device and method simulating wireless channel

A wireless channel and wireless signal technology, applied in the field of communication, can solve the problem of not being able to simulate the wireless channel circuit model, etc.

Inactive Publication Date: 2010-07-07
南通市通州区新志浩实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on these theoretical models of wireless channels, some simulation calculation programs corresponding to the theoretical models have been established in the prior art to simulate corresponding wireless channels, but there is still no circuit model capable of simulating wireless channels, and only the wireless channels can be passed through the device. Only by performing simulation can the wireless channel be directly connected to other devices in the wireless communication system during the circuit design of the wireless communication system, so that other devices can know the status of the wireless channel, and further facilitate the design of the wireless channel according to the channel situation. The best solution for wireless communication systems, the only theoretical models and simulation calculation programs in the prior art cannot achieve the above goals

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  • Device and method simulating wireless channel
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  • Device and method simulating wireless channel

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Embodiment 1

[0028] The first embodiment provides an apparatus for simulating a wireless channel, such as figure 1 As shown, the device 100 includes: a series of cluster delay units 101, each cluster delay unit 101 is tapped to output to the corresponding cluster arrival / amplitude determination unit 102, and each cluster arrival / amplitude determination unit 102 is separately A series of path delay units 103 are connected, each path delay unit 103 is tapped and output to the corresponding path arrival / amplitude judgment unit 104, and finally all output signals of the path arrival / amplitude judgment units 104 are input to the signal combining unit 105.

[0029] Among them, a series of cluster delay units 101 are used to perform a series of delay processing and attenuation on the input wireless signal to obtain cluster signals with different delays. The number of cluster delay units 101 is limited, and the number of the cluster delay units 101 satisfies the condition: the attenuation degree ...

Embodiment 2

[0051] like Figure 5 As shown, the second embodiment of the present invention provides a method for simulating a wireless channel, and the method includes the following steps:

[0052] S501: Perform a series of delay processing and attenuation on the wireless signal to obtain cluster signals with different delays;

[0053] Among them, a series of delay processing and attenuation are performed on the wireless signal in order to simulate the fact that the signal in the actual wireless channel has the characteristic of arriving in clusters.

[0054] In addition, when a series of delay processing is performed on the wireless signal, for reasonable consideration, the number of delay processing is limited, and the constraint condition can be set as: the cluster signal after all the above delay processing When the attenuation degree reaches a predetermined value, hereinafter referred to as the first threshold value, for example, the threshold value can be specified as 1 / 10 of the c...

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Abstract

The invention embodiment provides a device and method simulating a wireless channel. The device comprises a row of serial cluster delaying units for delaying and attenuating wireless signals and obtaining the cluster signals with different time delay, a cluster arrival / extent judging unit for processing the cluster signals in random extent and obtaining the cluster signals with random extent and different time delay, a plurality of rows of serial path delaying units for delaying and attenuating the cluster signals output by the corresponding cluster arrival and extent judging unit and obtaining the corresponding path signals with different time delay in the cluster signals, a path arrival / extent judging unit for processing the path signals in random extent, and a signal merging unit merging all path signals with the random extent and different time delay. The embodiment of the invention simulates the wireless channel through the device and conveniently realizes the collaborative design and the simulation between a wireless communication system and the wireless channel.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to a device and method for simulating a wireless channel. Background technique [0002] In the circuit simulation design of the wireless communication system, how to simulate the wireless channel has become a technical problem that people are very concerned about. At present, there are corresponding theoretical models for various wireless channels. For example, in the Ultra Wideband (UWB) communication technology, a standard UWB channel theoretical model is proposed for four typical environments of UWB indoor communication. [0003] Based on the theoretical models of these wireless channels, some simulation calculation programs corresponding to the theoretical models have been established in the prior art to simulate the corresponding wireless channels, but there is still no circuit model capable of simulating the wireless channels, and only the wireless channels are passe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/69H04B17/00H04B17/391
Inventor 任晓涛王勇吴忠敏李斌
Owner 南通市通州区新志浩实业有限公司