CN103687012B - The method and device of dynamic spectrum resource management in cognitive radio system - Google Patents
The method and device of dynamic spectrum resource management in cognitive radio system Download PDFInfo
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Abstract
The invention discloses a kind of method and devices of dynamic spectrum resource management in cognitive radio system, base station carries out scheduling of resource according to the resource allocation information that network side issues, wherein, resource allocation information includes the frequency spectrum resource by base station distribution and the attribute for distributing frequency spectrum resource；When resource reconfiguration occurs for system or base station, base station is supplied to adjacent base station or network side according to the resource allocation information, by some or all of reserved frequency spectrum resource.Using the present invention, resource reconfiguration efficiency can be effectively improved, the processing time of reconfiguration resource is reduced, reduces the influence to customer service service quality.
Description
Technical field
The present invention relates to a kind of methods of dynamic spectrum resource management in wireless communication field more particularly to cognitive radio system
And device.
Background technique
It is related to a variety of applied fields in cognitive radio system (Cognitive Radio System, referred to as CRS)
Scape, ternational Mobile Telecommunications frequency band (International Mobile Telecommunication Bands, referred to as IMT-
Bands) the main application scenarios in system have: 1) conventional wireless access technology (Radio Access Technology, abbreviation
(Spectrum Refarming) is reformed for the frequency spectrum of RAT), new technology is laid out in the frequency range of conventional wireless techniques, such as existing
There is frequency used in GSM (Global System for Mobile communication, global system for mobile communications) technology
Take layout L TE (Long Term Evolution, long evolving system) technology；2) optimization of wireless system resources, is different from
The borrow of wireless access technology resource, as UMTS (Universal Mobile Telecommunication System, it is general
Mobile communication system) current business is excessive, resource is nervous, business that can be adjacent on same base station or on region is less,
The available free GSM technology of resource carries out resource borrowing, and the idle frequency spectrum resource using GSM is UMTS business service；3) existing
It is laid out new RAT on wireless system or carries out system upgrade, UMTS is such as upgraded to HSPA+ technology (High Speed
Packet Access, high-speed packet access)；4) multiple types TDD (Time Division Duplex, time division duplex) and FDD
The negotiation of the business carried in (Frequency Division Duplex, frequency division duplex) resource uses.
Above-mentioned application scenarios are directed to the planning and distribution of frequency spectrum resource, in order to not influence the continuity and clothes of business
Business quality, must consider the reconfiguration efficiency in reconstitution process.It is that base station is distributed in network side currently for the utilization of resource
In fixed frequency range resource, scheduling of resource distribution is carried out according to the type of service of terminal request.In TV idle frequency spectrum (TV White
Space, referred to as TVWS) in system, in order to reduce subsystem to the interference of primary user's TV system and improve subsystem
To the utilization rate of idle frequency spectrum resource, the television channel that can be used is divided into different set and priority, thus to mention
The efficiency of height reconfiguration.
It is different for the reconfiguration mechanism under the resource reconfiguration under IMT-Band system, with TV system.Due to IMT-
Base station under Band system has allocated the resource of frequency range that can be used in advance, if resource load has occurred in a certain system or base station
When the integrated planning strategy of overload or operator changes, the frequency spectrum resource between system/base station is reconfigured
(on condition that each system or base station have to the frequency spectrum resource for supporting to be reconfigured).Network side is in the resource point for planning each system
Match and following resource be reconfigured when, due to each system support frequency range it is limited, or in some frequency range only support
Partial frequency spectrum resource in frequency band, network side is in the frequency spectrum for being determined to be reconfigured according to the resource utilisation information of base station side
When resource, this process must consume a large amount of processing times, thus affect reconfiguration efficiency.In addition, system is carrying out resource
When reconfiguration, the distribution of resource may also can bring adjacent band interference, influence the stability of system and the clothes of reliability and business
Business credit rating.
Summary of the invention
The technical problem to be solved by the present invention is to provide the methods and dress of dynamic spectrum resource management in a kind of cognitive radio system
It sets, resource reconfiguration efficiency can be effectively improved, the processing time of reconfiguration resource is reduced, reduce the shadow to customer service service quality
It rings.
In order to solve the above technical problems, the present invention provides a kind of sides of dynamic spectrum resource management in cognitive radio system
Method,
Base station carries out scheduling of resource according to the resource allocation information that network side issues, wherein the resource allocation information, packet
It includes the frequency spectrum resource by base station distribution and distributes the attribute of frequency spectrum resource；
When resource reconfiguration occurs for the system or the base station, the base station, will according to the resource allocation information
Some or all of reserved frequency spectrum resource is supplied to adjacent base station or network side.
Further, the attribute of the frequency spectrum resource, comprising:
First frequency spectrum resource refers to frequency spectrum resource required for meeting the base station minimum capacity demand；
Second frequency spectrum resource refers in the frequency spectrum resource for distributing to the base station, the frequency spectrum other than first frequency spectrum resource
Resource.
Further, second frequency spectrum resource, comprising:
The frequency spectrum resource that can be reconfigured refers to frequency spectrum money that is reserved and being supplied to adjacent system or adjacent base station
Source；And/or
Specific frequency spectrum resource refers to frequency spectrum resource that is reserved and being only available to specific system or base station.
Further, the network side determines distributed frequency spectrum money according to a kind of of following factor or any a variety of combination
The attribute in source:
Duration of load application statistical distribution, frequency interferences, the stability in system reconfiguration period of base station.
Further, the specific system or base station are configured by network side, and are being handed down to described in the base station
Information in resource allocation information comprising the specific system or base station；
Wherein, the specific system or base station, comprising: cell, Microcell or the capacity bursts of capacity enhancing
Region.
Further, the network side knows first base station industry according to the traffic load state and resource utilization of base station
Overload and the second BTS service load be engaged in when being lower than predetermined threshold, then the second frequency spectrum provided second base station provides
Distribute to the first base station in source；
The first base station carries out scheduling of resource according to second frequency spectrum resource got.
Further, when first base station traffic load overloads, current traffic load shape is sent to the second adjacent base station
State and resource utilization, and the band resource supported；
Traffic load state, and/or the resource allocation information of second base station according to itself send response message
To the first base station, the response message includes the second frequency spectrum resource provided to the first base station；
The first base station carries out scheduling of resource according to second frequency spectrum resource got.
In addition, being applied to network the present invention also provides a kind of device of dynamic spectrum resource management in cognitive radio system
Side, described device include:
Resource decision issues module, for base station down distributing resource configuration information, the resource allocation information to include for institute
State the frequency spectrum resource of base station distribution and the attribute of distributed frequency spectrum resource；
Management module is reconfigured in resource, for the second base station being provided reserved when resource reconfiguration occurs for first base station
Frequency spectrum resource distributes to the first base station.
Further, the resource decision issues module, for by be base station distribution frequency spectrum resource be divided into as
It is properties:
First frequency spectrum resource refers to frequency spectrum resource required for meeting the base station minimum capacity demand；
Second frequency spectrum resource refers in the frequency spectrum resource for distributing to the base station, the frequency spectrum other than first frequency spectrum resource
Resource；
Wherein, second frequency spectrum resource further comprises:
The frequency spectrum resource that can be reconfigured refers to reserved and can be supplied to adjacent system or adjacent base station is shared
The frequency spectrum resource of load；And/or
Specific frequency spectrum resource refers to frequency spectrum resource that is reserved and being only available to specific system or base station.
In addition, being applied to base station the present invention also provides a kind of device of dynamic spectrum resource management in cognitive radio system
Side, described device include:
Scheduling of resource module, the resource allocation information for being issued according to network side carry out scheduling of resource；
Module is reconfigured in resource, is used for when system or base station generation resource reconfiguration, will according to the resource allocation information
Some or all of reserved frequency spectrum resource is supplied to adjacent base station or network side；
Wherein, the resource allocation information, the frequency spectrum resource and distribution frequency distributed including network side by the base station
The attribute of spectrum resource.
Compared with prior art, the present invention at least has the following beneficial effects: the present invention by using base station side
The frequency spectrum resource of different frequency range carries out the division of attribute, when resource reconfiguration occurs for system, can effectively improve resource reconfiguration effect
Rate reduces the processing time of resource reconfiguration, reduces the influence to customer service service quality.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is method flow schematic diagram provided by the invention；
Fig. 2 is dynamic spectrum resource management schematic diagram of a scenario in the gsm system of the embodiment of the present invention one；
Fig. 3 is dynamic spectrum resource management schematic diagram of a scenario in the LTE system of the embodiment of the present invention two；
Fig. 4 is the dynamic spectrum resource management schematic diagram of a scenario between the system of the embodiment of the present invention three；
Fig. 5 is the specific dynamic spectrum resource management schematic diagram of a scenario of the embodiment of the present invention four；
Fig. 6 is frequency spectrum resource managing device in the network side of the embodiment of the present invention and the cognitive radio system of base station side
Schematic block diagram.
Specific embodiment
For resource reconfiguration spectral band in cognitive radio system come problem, present embodiment provides a kind of cognition wireless
The method of dynamic spectrum resource management in electric system configures different categories for the different resources of frequency range to the frequency spectrum resource of base station distribution
Property, to can effectively select the resource of frequency range that can be reconfigured in system resource reconfiguration, thus improve IMT-Band system
Resource reconfiguration efficiency and business service quality under system.
As shown in Figure 1, present embodiment provide cognitive radio system in dynamic spectrum resource management method, using as follows
Technical solution:
Base station receives the resource allocation information issued from network side, carries out scheduling of resource；
When (unless otherwise instructed, " system " referred to herein refers to logical using the movement of cognitive radio technology system
Letter system) perhaps base station occur resource reconfiguration when base station mentioned according to the resource allocation information to network side or adjacent base station
Some or all of reserved frequency spectrum resource in frequency spectrum resource for distributing to this base station.
Wherein, base station obtains resource allocation information from network side, to obtain available and scheduling frequency spectrum resource.
Wherein, the network side includes network management system or reconfiguration management system；
The network management system refers to cell management system (EMS), Network Management System (NMS)；
The reconfiguration management system refers to dedicated for the system of management resource reconfiguration configuration information, can integrate in existing
Network management system either independent management module has special interactive interfacing with network management system and access net side.
Further, the resource allocation information, comprising: distribute to the frequency spectrum resource of base station, and distributed frequency spectrum money
The attribute in source；
Wherein, the attribute of frequency spectrum resource can specifically include: the first frequency spectrum resource (hereafter also called basic frequency spectrum money
Source) and the second frequency spectrum resource；
Wherein the second frequency spectrum resource further can also include: the frequency spectrum resource that can be reconfigured, and/or, specific frequency spectrum
Resource, etc..
It preferably, mainly include basic frequency spectrum resource and the frequency spectrum that can be reconfigured money in frequency spectrum resource used in base station
Source.
The basic frequency spectrum resource refers to the resource of frequency range required for meeting base station minimum capacity demand, low in load of base station
When, preferentially use this section of frequency spectrum resource；
The frequency spectrum resource that can be reconfigured can specifically refer to when base station load itself is low, reserved (un-activation or
Idle) frequency spectrum resource, and the reserved frequency spectrum resource can partly or wholly be supplied to other base stations or system carries out
Share loads；And in base station initial service resource allocation or high load, then frequency point is carried out as basic frequency spectrum resource
Match.
The specific frequency spectrum resource, can specifically refer in the frequency spectrum resource for distributing to base station, can only be with specific system
The resource of frequency range borrowed between system/base station.Specific system/the base station is to be configured by network side, and may be embodied in money
Base station, such as the cell of capacity enhancing, Microcell (such as Home eNodeB), the region of capacity bursts are handed down in the configuration information of source
(such as stadium, performing art centre).
One or more of the network side to frequency spectrum resource Attribute transposition based on following factors: the duration of load application statistical of base station
The stability in period is reconfigured in cloth, frequency interferences, system, etc..
If network side is according to the statistical distribution of the traffic load of BS1, the probability of frequency point 1-6 scheduling is high (as more than 70%),
And the probability of frequency point 7-9 scheduling is low；The high frequency points (such as frequency point 7-9) of BS1 are small to the interference of adjacent system/base station；Base station BS 1 it is low
The probability that frequency point (such as frequency point 1-6) is reconfigured is low, and the reconfiguration period is long, small to the stability influence of system.
For example, leading to resource overload since the service request of user is excessive when system/base station 2；Or operator's plan
Change slightly；Or due to inter-cell interference, system type (FDD and TDD) business it is unbalanced etc., it will triggering to system/
The resource reconfiguration of base station 2 and system/base station 1.For system when carrying out resource reconfiguration, system/base station 1 is according to used in itself
The Resource Properties of each frequency range in frequency spectrum resource select the frequency spectrum resource that can be reconfigured to system/base station 2, or are supplied to net
Network side, is reconfigured by network side.
For the ease of illustrating the present invention, the implementation of technical solution of the present invention is made below with reference to drawings and the specific embodiments
It is described in further detail.It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application
It can mutual any combination.
Embodiment one
The dynamic spectrum resource management method of resource reconfiguration in the gsm system of the present embodiment, as shown in connection with fig. 2, including it is as follows
Key step:
Step 1: base station BS 1 of the network side down distributing resource configuration information to gsm system.
Wherein, the network side refers to network management system such as cell management system EMS, Network Management System NMS.
The resource allocation information includes 9 frequency points (such as frequency point 1 arrive frequency point 9) of the network side to base station planning,
Intermediate-frequeney point 1 is basic frequency spectrum resource to frequency point 6, and frequency point 7 to frequency point 9 is the frequency spectrum resource that can be reconfigured.
The basic frequency spectrum resource refers to the resource of frequency range required for meeting base station minimum capacity demand, low in load of base station
When, preferentially use this section of frequency spectrum resource；
The frequency spectrum resource that can be reconfigured refers to when base station load itself is low, reserves first and can be supplied to other bases
It stands or the resource of frequency range of system share loads；The initial service resource allocation or when high load in base station, with basic frequency spectrum resource
Equally carry out frequency distribution.Frequency spectrum resource it is possible to further reconfiguration includes that base station is temporarily unactivated, reserved frequency spectrum money
Source.
Network side is to frequency spectrum resource Attribute transposition according to the one or more of following factors: the duration of load application statistical of base station
The stability in period is reconfigured in cloth, frequency interferences, system.
Step 2: when in system other base stations include adjacent base station occur traffic load overload, as base station BS 2 voice and
Data service request increases, and occupies the 90% of the distributed resource of BS2；Meanwhile the traffic load of base station BS 1 is relatively low, it can be with
The frequency spectrum resource of reconfiguration is in idle condition, and in order to alleviate the traffic load of BS2, BS2 sends current business to network side and bears
Lotus state and resource utilization.
Step 3: meanwhile, network side also knows that the business of BS1 is negative by network management monitoring or the reported event based on base station
Lotus is lower, and network side, which issues, reconfigures order to BS1, and BS1 is notified to deactivate the frequency spectrum resource (frequency point 7 to frequency point that can be reconfigured
9)；It issues simultaneously and reconfigures order to BS2, described reconfigure increases frequency point 7, frequency point 8 and frequency point 9 in order.
Step 4: BS2 obtains newly-increased frequency point 7, frequency point 8, and frequency point 9 carries out scheduling of resource to new service request, alleviates
The traffic load of BS2, so that the traffic load between balancing base station/cell, improves resource utilization.
Further, for resource reconfiguration in the system of UMTS, with similar in gsm system.
Embodiment two
The dynamic spectrum resource management method of resource reconfiguration in the LTE system of the present embodiment, as shown in connection with fig. 3, including it is as follows
Key step:
Step 1: base station BS 1 of the reconfiguration management system down distributing resource configuration information to LTE system.
The reconfiguration management system refers to dedicated for the system of management resource reconfiguration configuration information, can integrate in existing
Network management system either independent management module has special interactive interfacing with network management system and access net side.
The resource allocation information include network side planned to base station BS 1 frequency spectrum resource (such as Band1 and
Band2), wherein Band1 is basic frequency spectrum resource, and Band2 is the frequency spectrum resource that can be reconfigured.
The basic frequency spectrum resource refers to the resource of frequency range required for meeting base station minimum capacity demand, low in load of base station
When, preferentially use this section of frequency spectrum resource；
The frequency spectrum resource that can be reconfigured refers to when base station load itself is low, reserves first and can be supplied to other bases
It stands or the resource of frequency range of system share loads；The initial service resource allocation or when high load in base station, with basic frequency spectrum resource
Equally carry out frequency distribution.Frequency spectrum resource it is possible to further reconfiguration includes that base station is temporarily unactivated, reserved frequency spectrum money
Source.
Management system is reconfigured to frequency spectrum resource Attribute transposition according to the one or more of following factors: the duration of load application of base station
The stability in period is reconfigured in statistical distribution, frequency interferences, system.
Step 2: when other base stations include that traffic load overload occurs for adjacent base station in system, such as the number of LTE base station BS2
Increase according to service request, occupies the 95% of the distributed resource of BS2；The traffic load of base station BS 1 is relatively low simultaneously, can be reconfigured
Frequency spectrum resource Band2 be in idle condition, in order to alleviate the traffic load of BS2, BS2 sends current to adjacent base station BS1
Traffic load state and resource utilization, and the band resource supported (as that can also support frequency band Band2).BS1 according to
The traffic load situation (current traffic load is low, and Band2 is in the free time) of itself, then Band2 can be determined as un-activation shape by BS1
State, while response message is sent to BS2, the response message includes the frequency spectrum resource Band2 that can be reconfigured.
Step 3: BS2 obtains newly-increased resource of frequency range Band2, carries out scheduling of resource to new data service request, alleviates
The traffic load of BS2, so that the traffic load between balancing base station/cell, improves resource utilization.
Wherein, the implementation for negotiating frequency spectrum resource between BS1 and BS2 is described in above-mentioned steps.Further, it is also possible to logical
The frequency spectrum resource for crossing network side (such as network management system or reconfiguration management system) Chinese style management BS1 and BS2, for example, BS2 can be sent
Service condition and resource utilization information give reconfiguration management system, reconfigure BS1 and BS2 by reconfiguration management system, reconfigure BS1
Band2 be deactivation status, reconfigure BS2 using Band2 resource.
Embodiment three
The dynamic spectrum resource management method of resource reconfiguration between the system of the present embodiment, as shown in connection with fig. 4, including it is following main
Step:
Step 1: network side distinguishes down distributing resource configuration information to the base station of gsm system and LTE system.
The network side includes network management system or reconfiguration management system.The network management system refers to cell management system EMS,
Network Management System NMS；
The reconfiguration management system refers to dedicated for the system of management resource reconfiguration configuration information, can integrate in existing
Network management system either independent management module has special interactive interfacing with network management system and access net side.
The resource allocation information of the gsm system includes 900MHz frequency range (890MHz- of the network side to base station planning
915MHz), including 124 frequency points, each frequency point 200KHz, intermediate-frequeney point 1 to frequency point 74 are basic frequency spectrum resources, and frequency point 75 arrives
Frequency point 124 is the frequency spectrum resource that can be reconfigured.The resource allocation information of the LTE system includes that network side is planned to LTE system
2300Mhz frequency range (TDD:2320MHz-2330MHz).
The basic frequency spectrum resource refers to the resource of frequency range required for meeting base station minimum capacity demand, low in load of base station
When, preferentially use this section of frequency spectrum resource；
The frequency spectrum resource that can be reconfigured refers to when base station load itself is low, reserves first and can be supplied to other bases
It stands or the resource of frequency range of system share loads；The initial service resource allocation or when high load in base station, with basic frequency spectrum resource
Equally carry out frequency distribution.Frequency spectrum resource it is possible to further reconfiguration includes that base station is temporarily unactivated, reserved frequency spectrum money
Source.
Network side is to frequency spectrum resource Attribute transposition according to the one or more of following factors: the duration of load application statistical of base station
The stability in period is reconfigured in cloth, frequency interferences, system.
Step 2: the voice-and-data service request of base station increases under LTE system, occupies the distributed resource of LTE system
The 90% of 10MHz.The traffic load of base station is relatively low under gsm system simultaneously, the frequency spectrum resource (frequency point 75 to frequency that can be reconfigured
124) point is in idle condition.In order to alleviate the traffic load under LTE system, LTE system base station is sent currently to network side
Traffic load state and resource utilization.
Step 3: network side also knows that the traffic load of base station under gsm system is lower simultaneously, and network side, which issues, reconfigures life
It enables 1 to gsm system base station, it is described to reconfigure order 1 and indicate not distribute the frequency spectrum resource that (or deactivation) be reconfigured temporarily
(frequency point 75 arrives frequency point 124).It issues simultaneously and reconfigures order 2 to LTE system base station, it is described to reconfigure the instruction of order 2 and increase frequency
Spectrum resource 5MHz (frequency point 100 of 900MHz frequency range arrives frequency point 124).Then for gsm system, frequency point 75 is to frequency point 99
The remaining frequency spectrum resource that can be reconfigured, gsm system still can be with dispatching distribution, or has other systems/BTS service load
Gao Shi is reconfigured to other systems/base station.
Wherein, in practical applications, it specifically should be the higher base station of load increases how many frequency spectrum resource, it can be according to system
The service request (such as voice service or data service) of load condition and terminal determines.
Step 4: LTE system base station obtains newly-increased 5MHz frequency spectrum resource, carries out scheduling of resource to new service request, delays
The traffic load for solving LTE system, so that the traffic load between balance system, improves the resource utilization of whole system.
Example IV
Present embodiment describes to particular system/base station resource reconfiguration dynamic spectrum resource management method.To frequency spectrum resource
Reconfiguration management, in addition to the frequency spectrum resource that system/base station divides is divided into basic frequency spectrum resource in above-described embodiment and can be reconfigured
Frequency spectrum resource, can also mark off for specific frequency spectrum resource.
The specific frequency spectrum resource refers in the frequency spectrum resource for distributing to base station, only carries out between specific system/base station
The resource of frequency range of borrow.
Network side is to frequency spectrum resource Attribute transposition according to the one or more of following factors: the duration of load application statistical of base station
The stability in period is reconfigured in cloth, frequency interferences, system.
Specific system/the base station is configured by network side, as capacity enhance cell, Microcell (such as Home eNodeB),
The region (such as stadium, performing art centre) of capacity bursts.
By taking the scene of LTE system as an example, specific dynamic spectrum resource management, two adjacent cells 1 and 2 of LTE system are (i.e.
BS1 and BS2), there are Microcell LTE BS3 and home base station cells CSG cell in BS1.
As shown in connection with fig. 5, the present embodiment method includes following key step:
Step 1: cell BS1 of the reconfiguration management system down distributing resource configuration information to LTE system.
The reconfiguration management system refers to dedicated for the system of management resource reconfiguration configuration information, can integrate in existing
Network management system either independent management module has special interactive interfacing with network management system and access net side.
Reconfiguration management system and it is configured with LTE BS3 and CSG cell is specific system/base station.The resource is matched
Confidence breath includes the frequency spectrum resource (such as 2590MHz-2610MHz of 2.6GMHz frequency range TDD) that network side is planned to base station BS 1,
Wherein 2590MHz-2600MHz is basic frequency spectrum resource, and 2600MHz-2605MHz is the frequency spectrum resource that can be reconfigured,
2605MHz-2610MHz is specific frequency spectrum resource.
The basic frequency spectrum resource is identical with above-described embodiment with the definition for the frequency spectrum resource that can be reconfigured.
Step 2: when other base stations include that traffic load overload occurs for adjacent base station in system, such as the number of LTE base station BS2
Increase according to service request, occupies the 90% of the distributed resource of BS2.The traffic load of base station BS 1 is in medium simultaneously, can be reconfigured
Frequency spectrum resource still by BS1 dispatching distribution, only specific frequency spectrum resource is in the free time.In order to alleviate the traffic load of BS2,
It includes current traffic load state and resource utilization that BS2, which sends resource negotiation request to adjacent base station BS1, and is supported
Band resource (as that can also support frequency band Band2).BS1 according to itself traffic load situation and resource of frequency range attribute (when
Preceding traffic load is medium, and the still scheduled distribution of the frequency spectrum resource that can be reconfigured, specific frequency spectrum resource is in free time, but BS2
It is not specific system/base station), then BS1 can refuse the resource negotiation request of BS2.
Increase when the appearance of CSG cell/BS3 capacity is sudden (such as since the user of stadium or performing art centre assembles),
CSG cell/BS3 overload sends resource negotiation request to BS1, resource load condition and resource benefit including current area
With rate, and the band resource supported, the attribute (specific system/base station) of base station.BS1 is according to current traffic load situation
With resource of frequency range attribute and CSG cell/BS3 base station property, then BS1 deactivates specific frequency spectrum resource, then CSG cell/
BS3 can obtain specific frequency spectrum resource and be scheduled distribution.
Step 4: CSG cell/BS3 acquisition increases the specific resource of frequency range newly, carries out resource tune to new data service request
Degree alleviates CSG cell/BS3 traffic load, so that the traffic load between balancing base station/cell, improves resource utilization.
Further, for the scene between UMTS or gsm system and system, for the distribution of specific frequency spectrum resource with
The above process is similar.
In addition, as shown in fig. 6, additionally providing dynamic spectrum resource management in a kind of cognitive radio system in the embodiment of the present invention
Device, be applied to network side, the device mainly includes: resource decision issues module, for base station down distributing resource match confidence
Breath, the resource allocation information include the frequency spectrum resource by base station distribution and the attribute for distributing frequency spectrum resource；Resource
Management module is reconfigured, for when resource reconfiguration occurs for first base station, the reserved frequency spectrum resource that the second base station is provided to be distributed
To the first base station.
Further, the resource decision issues module, for by be base station distribution frequency spectrum resource be divided into as
It is properties:
First frequency spectrum resource refers to frequency spectrum resource required for meeting the base station minimum capacity demand；
Second frequency spectrum resource refers in the frequency spectrum resource for distributing to the base station, the frequency spectrum other than first frequency spectrum resource
Resource；
Wherein, second frequency spectrum resource further comprises:
The frequency spectrum resource that can be reconfigured refers to reserved and can be supplied to adjacent system or adjacent base station is shared
The frequency spectrum resource of load；And/or
Specific frequency spectrum resource refers to frequency spectrum resource that is reserved and being only available to specific system or base station.
In addition, being applied to base station the present invention also provides a kind of device of dynamic spectrum resource management in cognitive radio system
Side, as shown in fig. 6, the device mainly includes: scheduling of resource module, the resource allocation information for being issued according to network side carry out
Scheduling of resource；Module is reconfigured in resource, for when resource reconfiguration occurs for system or base station, according to the resource allocation information,
Some or all of reserved frequency spectrum resource is supplied to adjacent base station or network side；Wherein, the resource allocation information, including
The attribute of frequency spectrum resource and distribution frequency spectrum resource that network side is distributed by the base station.
The above is only preferred implementation cases of the invention, are not intended to restrict the invention, and the present invention can also have other
Various embodiments, without deviating from the spirit and substance of the present invention, those skilled in the art can be according to this hairs
It is bright to make various corresponding changes and modifications, but these corresponding changes and modifications all should belong to appended claims of the invention
Protection scope.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein
Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
Claims (7)
1. a kind of method of dynamic spectrum resource management in cognitive radio system, which is characterized in that
Base station carries out scheduling of resource according to the resource allocation information that network side issues, wherein the resource allocation information, including be
The frequency spectrum resource of the base station distribution and the attribute of distributed frequency spectrum resource；
When resource reconfiguration occurs for the system or the base station, the base station will be reserved according to the resource allocation information
Some or all of frequency spectrum resource be supplied to adjacent base station or network side；
Wherein, the attribute of the frequency spectrum resource, comprising: the first frequency spectrum resource refers to needed for meeting the base station minimum capacity demand
The frequency spectrum resource wanted；
Second frequency spectrum resource refers in the frequency spectrum resource for distributing to the base station, the frequency spectrum resource other than first frequency spectrum resource；
Second frequency spectrum resource, comprising:
The frequency spectrum resource that can be reconfigured refers to frequency spectrum resource that is reserved and being supplied to adjacent system or adjacent base station；
And/or
Specific frequency spectrum resource refers to frequency spectrum resource that is reserved and being only available to specific system or base station；
Wherein, the specific system or base station, comprising: the area of cell, Microcell or capacity bursts that capacity enhances
Domain.
2. the method as described in claim 1, which is characterized in that
The network side determines the attribute of distributed frequency spectrum resource according to a kind of of following factor or any a variety of combination:
Duration of load application statistical distribution, frequency interferences, the stability in system reconfiguration period of base station.
3. the method as described in claim 1, which is characterized in that
The specific system or base station are configured by network side, and in the resource allocation information for being handed down to the base station
Information comprising the specific system or base station.
4. method as claimed in claim 1 or 3, which is characterized in that
The network side according to the traffic load state and resource utilization of base station, know the overload of first base station traffic load and
When second BTS service load is lower than predetermined threshold, then the second frequency spectrum resource that second base station provides is distributed to described the
One base station；
The first base station carries out scheduling of resource according to second frequency spectrum resource got.
5. method as claimed in claim 1 or 3, which is characterized in that
When first base station traffic load overloads, current traffic load state and the utilization of resources are sent to the second adjacent base station
Rate, and the band resource supported；
Traffic load state, and/or the resource allocation information of second base station according to itself send response message to institute
First base station is stated, the response message includes the second frequency spectrum resource provided to the first base station；
The first base station carries out scheduling of resource according to second frequency spectrum resource got.
6. the device of dynamic spectrum resource management in a kind of cognitive radio system, which is characterized in that be applied to network side, described device
Include:
Resource decision issues module, for base station down distributing resource configuration information, the resource allocation information to include for the base
Stand distribution frequency spectrum resource and distributed frequency spectrum resource attribute；
Management module is reconfigured in resource, the reserved frequency spectrum for when resource reconfiguration occurs for first base station, the second base station to be provided
Resource allocation gives the first base station；
Wherein, the resource decision issues module, for will be that the frequency spectrum resource that the base station is distributed is divided into as properties:
First frequency spectrum resource refers to frequency spectrum resource required for meeting the base station minimum capacity demand；
Second frequency spectrum resource refers in the frequency spectrum resource for distributing to the base station, the frequency spectrum resource other than first frequency spectrum resource；
Wherein, second frequency spectrum resource further comprises:
The frequency spectrum resource that can be reconfigured refers to reserved and can be supplied to adjacent system or adjacent base station progress share loads
Frequency spectrum resource；And/or
Specific frequency spectrum resource refers to frequency spectrum resource that is reserved and being only available to specific system or base station；
Wherein, the specific system or base station, comprising: the area of cell, Microcell or capacity bursts that capacity enhances
Domain.
7. the device of dynamic spectrum resource management in a kind of cognitive radio system, which is characterized in that be applied to base station side, described device
Include:
Scheduling of resource module, the resource allocation information for being issued according to network side carry out scheduling of resource；
Module is reconfigured in resource, for that according to the resource allocation information, will reserve when system or base station generation resource reconfiguration
Some or all of frequency spectrum resource be supplied to adjacent base station or network side；
Wherein, the resource allocation information, the frequency spectrum resource distributed including network side by the base station and distribution frequency spectrum money
The attribute in source；
Wherein, the attribute of the frequency spectrum resource, comprising: the first frequency spectrum resource refers to needed for meeting the base station minimum capacity demand
The frequency spectrum resource wanted；
Second frequency spectrum resource refers in the frequency spectrum resource for distributing to the base station, the frequency spectrum resource other than first frequency spectrum resource；
Second frequency spectrum resource, comprising:
The frequency spectrum resource that can be reconfigured refers to frequency spectrum resource that is reserved and being supplied to adjacent system or adjacent base station；
And/or
Specific frequency spectrum resource refers to frequency spectrum resource that is reserved and being only available to specific system or base station；
Wherein, the specific system or base station, comprising: the area of cell, Microcell or capacity bursts that capacity enhances
Domain.
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| CN104066191B (en) * | 2014-06-24 | 2017-11-24 | 京信通信系统（中国）有限公司 | A kind of method and device for distributing frequency spectrum resource |
| CN105704822B (en) * | 2014-11-28 | 2021-06-29 | 索尼公司 | Spectrum resource management device and method, wireless communication device and method |
| CN108449761A (en) * | 2018-03-02 | 2018-08-24 | 北京科技大学 | A kind of method and apparatus of cognitive radio Femto cell resource allocation |
| CN110401957A (en) * | 2018-04-25 | 2019-11-01 | 中兴通讯股份有限公司 | A kind of carrier frequency point sharing method and device |
| CN112055362B (en) * | 2020-08-19 | 2023-04-07 | 中通服咨询设计研究院有限公司 | 4G and 5G cooperative dynamic frequency sharing method and system |
| CN115250472B (en) * | 2021-04-28 | 2024-07-16 | 中国移动通信集团四川有限公司 | Frequency allocation method and device and electronic equipment |
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