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Dynamic frequency spectrum managing method based on frequency spectrum multiple use

A dynamic spectrum management and spectrum technology, which is applied in frequency division multiplexing system components, frequency diversity, diversity/multi-antenna systems, etc.

Inactive Publication Date: 2007-01-24
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In summary, the existing radio spectrum management methods are suitable for the fixed spectrum allocation and assignment of licensed users
However, to consider the re-use of the allocated spectrum by unlicensed users and the real-time backoff of unlicensed users when authorized users arrive, it cannot be accomplished by existing wireless spectrum management methods alone

Method used

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  • Dynamic frequency spectrum managing method based on frequency spectrum multiple use
  • Dynamic frequency spectrum managing method based on frequency spectrum multiple use
  • Dynamic frequency spectrum managing method based on frequency spectrum multiple use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0168] Embodiment 1, the format of the application frame sent by an unauthorized user is as follows Figure 11 Shown: The meaning of each parameter is: Number 0101110, which is the second in the queue 1 +2 2 +2 3 +2 5 = 46 applicants; Type 1 means no cognitive radio function; the first item in Data 01011001 is the required bandwidth 2 0 +2 3 +2 4 +2 6 =89kHz, the second item 000011 is the required reservation actual 2 0 +2 1 =3min, the third item 10 means the place of the call is located in the west area, the fourth item 00 means the hole stability is low, the fifth item 00 means the type of voice service, the sixth item 10 means the caller is located in the west area; 0 in Emergency means a non-emergency call ; 00001111 in PowerDown is to ensure that the lower limit of the transmission power of the user's basic service requirements is 2 0 +2 1 +2 2 +2 3 = 15W. The above user application information is summarized as follows: the 46th applicant in the queue does not ...

Embodiment 2

[0169] Embodiment 2, the frame format of an unauthorized user application frame is as follows Figure 14 As shown, except the first item in Data 101101010 means that the required bandwidth is 2 1 +2 3 +2 5 +2 6 +200=306kHz, the meanings of other items are the same as Figure 11 exactly the same. Therefore, the user's application information is: the 46th applicant in the queue, does not have the cognitive radio capability, the required bandwidth is 306kHz, the scheduled call is 3 minutes, the call location is in the west area, the service type is voice, the required hole stability is low, the main If the caller is located in the West District and makes a non-emergency call, the minimum power required for the call is 15W. Note that this user requires a bandwidth of 306 kHz, more than one channel bandwidth but less than two consecutive channel bandwidths. The format of the allocation frame sent back by the dynamic spectrum management center after querying the database is as...

Embodiment 3

[0170] Embodiment 3, in the non-authorized user application frame format, except that the service type is set to data, other items such as Figure 11 shown. In the corresponding allocation frame format, except that the center frequency of the applied frequency band is 908.4MHz and the hole stability is high, other items such as Figure 12 shown. Since the data service requires high hole stability, a channel with high hole stability is selected. From this, it is known that different channels are selected for different transmission services of applicant users.

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PUM

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Abstract

This invention discloses a dynamic spectrum management method, which increases a new dynamic spectrum management system under the radio management organization to realize re-usage of the un-used distributed spectrum by un-authorized users including a dynamic spectrum management center, a database for frequency used state, a spectrum monitor unit and a monitored actual use environment, the management center receives applications for spectrums of un-authorized users and assigned spectrums directed by the management rule, a spectrum monitor module monitors periodically the radio environment change and reports the result to the database, which records dynamically and provides data for frequency use state to the management center, the rule includes an application frame, its form, inquiry mode of database and distribution mode of spectrums, which applies the frame mode to transfer spectrum application and distribute information between the un-authorized users and the dynamic spectrum management system to realize automatic quick frequency application and distribution.

Description

technical field [0001] The invention belongs to the technical field of wireless communication. Specifically, it is a dynamic spectrum management method based on spectrum multiple use, which is used to improve spectrum utilization. Background technique [0002] The existing wireless spectrum management rules adopt a single-purpose spectrum allocation method, that is, the radio spectrum management department allocates a certain frequency band to a certain business, and it can only be used by the business; further, a certain frequency band is allocated to a certain If there is a wireless service operator (or group, department, etc.), the frequency band can only be used by users belonging to the operator, and other users cannot use the frequency band. Even if the former does not use this frequency band, the latter has no right to use this frequency band. In fact, after monitoring spectrum resources for a long time, it will be found that some frequency bands allocated to radio ...

Claims

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Application Information

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IPC IPC(8): H04B7/12H04J1/16
Inventor 杨家玮阙颖李建东李维英刘勤黄鹏宇高波李红艳赵林靖杨志伟张雯
Owner XIDIAN UNIV
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