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Method and system of sharing channels

A technology for sharing channels and channels, applied in wireless communication, power management, electrical components, etc., can solve problems such as increasing network overhead, reducing network performance, and effective spectrum utilization.

Active Publication Date: 2010-08-18
广东碳中和研究院(韶关)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If authorized users appear frequently, spectrum switching actions must be performed frequently, which increases network overhead and reduces the performance of the entire network and the effective utilization of spectrum

Method used

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  • Method and system of sharing channels

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Experimental program
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Embodiment Construction

[0044]In wireless network communication, when the authorized user (Priority User, referred to as PU) does not appear, the cognitive user (Secondary User, referred to as SU) randomly occupies the idle registration channel. When the authorized user appears, the cognitive user judges whether to Switch to another free channel. Wherein, the authorized user is a registered user and has the priority to use the frequency spectrum. Cognitive users are unauthorized users and usually communicate on idle channels.

[0045] Such as figure 1 As shown, a method for sharing a channel includes the following steps:

[0046] Step S10, allocate an idle registration channel to the cognitive user. Assign cognitive users to idle registration channels for communication.

[0047] Step S20, detecting whether an authorized user is present, if yes, execute step S30, if not, continue detection.

[0048] Step S30, allocate the registered channel to the authorized user, measure the interference tempera...

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Abstract

The invention relates to a method for sharing channels, comprising the following steps of: A. distributing an idle registration channel for a cognitive user; B. detecting whether an authorized user appears or not, if the authorized user appears, distributing the registration channel for the authorized user, and measuring an interference temperature threshold for ensuring that the authorized user normally uses the registration channel, acquiring the maximum available power of the cognitive user according to the interference temperature threshold, and if the authorized user does not appear, continue to detecting; and C. calculating whether the cognitive user can carry out data transmission or not by using the maximum available power, if so, regulating the transmitting power of the cognitiveuser, and if not, switching the cognitive user to the idle channel. Moreover, the invention also relates to a system for sharing channels. The method and the system for sharing channels judge whetherthe cognitive user can carry out data transmission or not by using the maximum available power to control the action of the cognitive user, which greatly reduces the frequency spectrum switching efficiency, improves the frequency spectrum use ratio and network performance and meanwhile also improves the effective data transfer rate.

Description

【Technical field】 [0001] The present invention relates to the field of wireless communication, in particular to a method and system for sharing a channel. 【Background technique】 [0002] With the growth of wireless communication services, the available frequency bands are increasingly tight, and the shortage of spectrum resources is becoming increasingly serious. To this end, spectrum management is used to license specific frequencies to users, that is, the licensed users use the licensed frequency bands allocated to the users, but not all licensed users occupy the licensed frequency bands all the time, and some licensed frequency bands occupy part of the time. It is not used by users. If it is not used, spectrum sharing cannot be realized, resulting in waste of spectrum resources. The traditional spectrum sharing method is that when the licensed frequency band is free, the cognitive user can use the idle licensed frequency band, and when the licensed user appears, the cogn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/14H04W24/02H04W52/24
Inventor 陆佃杰黄晓霞吕婧刘聪樊建平
Owner 广东碳中和研究院(韶关)
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