CN102281553A - Idle frequency detection and allocation method and system, and spectrum control equipment and base station - Google Patents
Idle frequency detection and allocation method and system, and spectrum control equipment and base station Download PDFInfo
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- CN102281553A CN102281553A CN2010102030925A CN201010203092A CN102281553A CN 102281553 A CN102281553 A CN 102281553A CN 2010102030925 A CN2010102030925 A CN 2010102030925A CN 201010203092 A CN201010203092 A CN 201010203092A CN 102281553 A CN102281553 A CN 102281553A
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Abstract
The invention provides an idle frequency detection and allocation method, an idle frequency detection and allocation system and an idle frequency detection and allocation device, which are applied to a mobile honeycomb network. Spectrum control equipment (SCE) determines a base station of which the spectrum is required to be detected, sends a spectrum detection command to the base station of which the spectrum is required to be detected, and receives a spectrum detection result which is returned by the base station of which the spectrum is required to be detected after spectrum detection according to the received spectrum detection command; and the SCE allocates working frequency for the base station according to the received spectrum detection result. By adopting the scheme, reasonable idle frequency detection and allocation can be realized.
Description
Technical field
The present invention relates to mobile communication technology, particularly a kind of idle frequence detection and distribution method, system and a kind of spectrum controller and a kind of base station.
Background technology
The cognitive radio power technology is a kind of novel intelligent wireless communication technology that grows up on the basis of software radio, mainly studies a plurality of internetwork dynamic spectrum sharing problems.When the mandate frequency of a network is not used, when promptly having idle frequence, can borrow temporarily and use to other network, other network can be sought the frequency cavity by the mode that detects the frequency spectrum that aerial signal takies, to obtain available idle frequence, use then; Usually, the above-mentioned network that uses to other network that self frequency can be borrowed temporarily is called authorisation network, the network of using the authorisation network frequency is called leases network; Resume when being leased the frequency that network uses when authorisation network, lease network and need in time return the frequency of using, and switch to other idle frequence.
Though propose to lease the idle frequence that network can be used authorisation network in the prior art, (which frequency is authorisation network used but for the frequency operating position of authorisation network, which does not use etc.) to change coverage slow, authorisation network bigger, and lease the scene that network is the mobile cellular net, also do not provide a kind of rational idle frequence in the prior art and detect and allocative decision.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of idle frequence to detect and distribution method, can realize that rational idle frequence detects and distribution.
Another object of the present invention is to provide a kind of idle frequence to detect and distribution system, can realize that rational idle frequence detects and distribution.
Another purpose of the present invention is to provide a kind of spectrum controller, can realize that rational idle frequence detects and distribution.
A further object of the present invention is to provide a kind of base station, can realize that rational idle frequence detects and distribution.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of idle frequence detects and distribution method, and this method is applied in the mobile cellular net spectrum controller SCE is set in network, and this method comprises:
Described SCE determines to carry out the base station of frequency spectrum detection, and carries out the base station transmission frequency spectrum detection order of frequency spectrum detection to needs;
Described SCE receives the base station that need carry out frequency spectrum detection and carries out the frequency spectrum detecting result returned after the frequency spectrum detection according to the frequency spectrum detection order that receives;
Described SCE is the base station assigns operating frequency according to the frequency spectrum detecting result that receives.
A kind of idle frequence detects and distribution system, and this system applies comprises in the mobile cellular net: above base station and spectrum controller SCE;
Described SCE is used for determining to carry out the base station of frequency spectrum detection, and the base station of carrying out frequency spectrum detection to needs sends the frequency spectrum detection order, and is the base station assigns operating frequency according to the frequency spectrum detecting result that receives;
Described base station is used for carrying out frequency spectrum detection according to described frequency spectrum detection order, and returning frequency spectrum detecting result to described SCE after the frequency spectrum detection order that receives from described SCE.
A kind of spectrum controller SCE, this SCE are applied to comprise in the mobile cellular net:
Detecting unit is used for the definite base station that need carry out frequency spectrum detection, and the base station of carrying out frequency spectrum detection to needs sends the frequency spectrum detection order;
Allocation units are used for being defined as the base station assigns operating frequency according to the frequency spectrum detecting result that receives.
A kind of base station comprises:
Receiving element is used to receive the frequency spectrum detection order from spectrum controller SCE, carries out frequency spectrum detection according to the frequency spectrum detection order that receives;
Transmitting element is used for returning frequency spectrum detecting result to described SCE.
As seen, adopt technical scheme of the present invention, SCE controls each base station and carries out frequency spectrum detection, and the frequency spectrum detecting result of returning according to each base station is the relevant base station frequency that shares out the work, like this, SCE just can in time understand the operating position of authorisation network to self frequency, thereby realizes that rational idle frequence detects and distributes.
Description of drawings
Fig. 1 is the flow chart of idle frequence detection of the present invention and distribution method embodiment.
Schematic diagram when Fig. 2 places SCE separately for the present invention.
Schematic diagram when Fig. 3 disperses SCE to be positioned over each base station for the present invention.
Fig. 4 is the flow chart of idle frequence detection of the present invention and distribution method first preferred embodiment.
Fig. 5 is the flow chart of idle frequence detection of the present invention and distribution method second preferred embodiment.
Fig. 6 is the composition structural representation of idle frequence detection of the present invention and distribution system embodiment.
Embodiment
At problems of the prior art, propose a kind of brand-new idle frequence among the present invention and detect and allocative decision.Spectrum controller (SCE, Spectrum Control Entity) is set in the mobile cellular net, is used for controlling and frequency spectrum detection is carried out in each base station (eNB) of coordination network, and be each base station assigns operating frequency according to the frequency spectrum detecting result that each base station is returned.
For make technical scheme of the present invention clearer, understand, below with reference to the accompanying drawing embodiment that develops simultaneously, scheme of the present invention is described in further detail.
Fig. 1 is the flow chart of idle frequence detection of the present invention and distribution method embodiment.As shown in Figure 1, may further comprise the steps:
Step 11:SCE determines to carry out the base station of frequency spectrum detection, and send the frequency spectrum detection order to each base station that need carry out frequency spectrum detection, wherein carry the frequency range of detection and the time range of detection, the frequency of described detection is the frequency of authorisation network.
Under the initial condition, can pass through human configuration, or control each base station by SCE and carry out spectrum scan obtaining frequency spectrum seizure condition at that time, thereby generate the frequency spectrum state table at full working frequency range.In the scheme of the present invention, concrete which information of preserving in the frequency spectrum state table is not limited, such as, can preserve the detected current authorisation network in each base station to the operating position of self frequency be the operating frequency of each base station assigns (under the initial condition, the unallocated operating frequency of possibility, suppose in the present embodiment operating frequency that manually has been each base station assigns in advance).
In actual applications, SCE can be an entity that is provided with separately, also can be arranged in existing network entity, as can place it in that existing mobile management entity (MME, Mobility ManagementEntity) is gone up or the base station on.When SCE was integrated among the MME, SCE can communicate by S1 interface and each base station; When SCE was integrated on the base station, SCE can be by X2 interface and each base station communication.In addition, also SCE can be disperseed to be placed on each base station, communicate by X2 interface between them.Schematic diagram when as shown in Figure 2, Fig. 2 places SCE separately for the present invention; Schematic diagram when as shown in Figure 3, Fig. 3 disperses SCE to be positioned over each base station for the present invention.Certainly, above-mentioned only for illustrating, in actual applications, be not limited to aforesaid way.
In order to follow the tracks of the operating position of authorisation network to self frequency, the mobile cellular net need regularly carry out frequency spectrum detection, originally be moved the idle frequence that Cellular Networks takies to determine whether authorisation network has been resumed, or discharged the frequency that self took originally, and then determine whether need be again to be the relevant base station frequency that shares out the work.For this reason, in the present embodiment, when each arrival regularly constantly the time, it is execution in step 11, be the base station that SCE determines to carry out frequency spectrum detection, and send the frequency spectrum detection order, wherein carry the frequency range of detection and the time range of detection to each base station that need carry out frequency spectrum detection, the frequency of described detection is the frequency of authorisation network, and whether the frequency operating position that promptly detects authorisation network variation has taken place.Need to prove that twice regularly the duration at interval can be identical between the moment in above-mentioned every front and back, also can be obstructed, be decided according to the actual requirements.
The coverage of considering authorisation network is usually much larger than the coverage of a base station, being in the number that same frequency spectrum takies the base station in the environment will be more, in order to reduce the expense that is used for frequency spectrum detection, SCE can only select part, rather than frequency spectrum detection is carried out in whole base stations, and the frequency spectrum detecting result of each base station merged, to obtain overall frequency spectrum detecting result.How SCE determines to carry out the base station of frequency spectrum detection and how to determine that the frequency range of each base station detection and the time range of detection etc. all do not limit.
In addition, disturb for avoiding producing, determine need carry out the frequency spectrum detection base station after, also can further determine the base station that to mourn in silence, send the order of mourning in silence to each base station that need mourn in silence, wherein carry the time range of mourning in silence, described time range of mourning in silence is identical with the time range of described detection, when frequency spectrum detection was carried out in each base station that need carry out frequency spectrum detection, the UE that base station that each need be mourned in silence and subordinate UE thereof and each need be carried out the base station subordinate of frequency spectrum detection all needed to mourn in silence.SCE can send the order of mourning in silence to the base station that needs are mourned in silence when the base station of carrying out frequency spectrum detection to needs sends the frequency spectrum detection order, also can not send simultaneously, and sequencing is not limit.
Suppose base station A for need carrying out the base station of frequency spectrum detection, if during the B operate as normal of base station to the interference of base station A greater than pre-set threshold, so then can think the base station of base station B for mourning in silence.The concrete value of described threshold value is subjected to the influence of following factor: the geographical position of base station B and base station A relation (as distance), the operating frequency of base station B and the interval of the frequency that base station A will detect, and authorisation network is to the frequency spectrum detection performance demands etc.
Need to prove, also can further carry out of Memory in the above-mentioned frequency spectrum detection order and the order of mourning in silence, owing to do not have direct relation with scheme of the present invention, so be not described.
Step 12: each need carry out the base station of frequency spectrum detection and carry out frequency spectrum detection according to the frequency spectrum detection order that receives, and returns frequency spectrum detecting result to SCE.
In this step, each need carry out the base station of frequency spectrum detection and carry out frequency spectrum detection according to the frequency range of the detection of carrying in the frequency spectrum detection order that receives and the time range of detection etc., and frequency spectrum detecting result is returned to SCE.How carrying out frequency spectrum detection does not limit.
The frequency spectrum detecting result that step 13:SCE basis receives is upgraded the frequency spectrum state table of self, and determines whether to exist needs to redistribute the base station of operating frequency according to the frequency spectrum state table after upgrading, if then redistribute operating frequency for this base station.
In this step, SCE at first upgrades the operating position of self frequency according to receiving the authorisation network of being preserved in the frequency spectrum state table of frequency spectrum detecting result to self; Then, comprehensively the situation of each base station determines whether authorisation network to the operating position of self frequency variation has taken place, and whether is authorized to network as certain frequency in certain geographic range and resumes or discharge; Afterwards, SCE can determine whether and need redistribute operating frequency for a certain base station according to distance and the operating frequency of base station and the interval of frequency that authorisation network take etc. of authorisation network to requirement, base station and the authorisation network of interference.Such as: if being authorized to network, the operating frequency of a certain base station resumes, so then need to redistribute operating frequency for this base station, perhaps, if being authorized to network, the side frequency of the operating frequency of a certain base station resumes, disturb for avoiding producing, also need to redistribute operating frequency for this base station, again or, if authorisation network has discharged a certain frequency, and a certain base station use the frequency of this release communicate effect can be better than before employed operating frequency, so also need to redistribute operating frequency for this base station.
In addition, when being each base station assigns operating frequency, also may further be the standby operating frequency of each base station assigns, and be recorded in the frequency spectrum state table, in this step, SCE upgrades after the frequency spectrum state table according to the frequency spectrum detecting result that receives, and also can further determine whether to exist the base station that need redistribute standby operating frequency, if then redistribute standby operating frequency for this base station.
Like this, at a base station, following three kinds of situations just may occur: 1) operating frequency does not need to redistribute, and standby operating frequency need be redistributed; 2) operating frequency need be redistributed, and standby operating frequency does not need to redistribute; 3) operating frequency and standby operating frequency all need to redistribute.
For the 1st) the kind situation, SCE only is required to be the base station and redistributes standby operating frequency, and is notified to the base station, and correspondingly, the base station need not to carry out frequency switches, and only needs to preserve the standby operating frequency of redistributing and gets final product; For the 3rd) the kind situation, SCE need redistribute operating frequency and standby operating frequency for the base station, and is notified to the base station, and correspondingly, the base station need switch to the operating frequency of redistributing, and preserves the standby operating frequency of redistributing; For the 2nd) the kind situation, SCE is before redistributing operating frequency and being notified to the base station for the base station, can switch to standby operating frequency by first informing base station, because the base station can be notified to standby operating frequency each UE of subordinate in advance, therefore switch to standby operating frequency earlier rather than switch to after on the operating frequency redistributed, can help to reduce UE carries out the frequency time delay for switching and improves handover success rate, afterwards, SCE is notified to the base station with the operating frequency of redistributing again, and preserve the operating frequency of redistributing the base station as standby operating frequency.
Below by a preferred embodiment, scheme of the present invention is further described.
Fig. 4 is the flow chart of idle frequence detection of the present invention and distribution method first preferred embodiment.As shown in Figure 4, may further comprise the steps:
Step 41:SCE determines whether to arrive regularly constantly, if then execution in step 42, otherwise, repeated execution of steps 41.
The definite base station that need carry out frequency spectrum detection of step 42:SCE is base station A, and the base station that need mourn in silence is base station B.
Step 43:SCE sends the order of mourning in silence to base station B, wherein carries the time range of mourning in silence.
Step 44:SCE sends the frequency spectrum detection order to base station A, wherein carries the frequency range of detection and the time range of detection.
Step 45: base station A carries out frequency spectrum detection, and simultaneously, each UE of subordinate of base station B and base station A and base station B (being notified information such as subordinate UE silence period in advance by the base station) mourns in silence.
Step 46: base station A returns frequency spectrum detecting result to SCE.
Step 47:SCE upgrades the frequency spectrum state table.
Step 48:SCE determines need be for base station C redistributes operating frequency and standby operating frequency, and sends operating frequency switching command and standby operating frequency configuration order to base station C.
Base station C may be base station A or base station B, also may be other base station.
Step 49: base station C switches to the operating frequency of redistributing, and preserves the standby operating frequency of redistributing, and returns response message to SCE then.
In theory, for in time understanding the operating position of authorisation network to self frequency, less frequency spectrum detection period need be set, before and after being about to twice regularly constantly interval be provided with shortlyer, if but frequency spectrum detection period is provided with too shortly, can increase the expense of frequency spectrum detection again.In order in time to understand the operating position of authorisation network to self frequency, can reduce the expense of frequency spectrum detection again, can be provided with frequency spectrum detection period bigger, then in double timing gap constantly, allow each base station in the network detect from the interference that on operating frequency, is subjected to, and determine whether to disturb greater than the threshold value that sets in advance, if then send the frequency spectrum detection application to SCE.If promptly disturb greater than threshold value, can suspect that then authorisation network resumed frequency, this frequency may be the operating frequency of base station, also may be the side frequency of operating frequency.Described interference can obtain indirectly by certain measuring amount, and the concrete value of described threshold value can be decided according to the actual requirements.
SCE determines that according to the frequency spectrum detection application that receives needs carry out the base station of frequency spectrum detection, send the frequency spectrum detection order to each base station that need carry out frequency spectrum detection, and the definite base station that need mourn in silence, send the order of mourning in silence to each base station that need mourn in silence; Each need carry out the base station of frequency spectrum detection and carry out frequency spectrum detection according to the frequency spectrum detection order that receives, and returns frequency spectrum detecting result to SCE; SCE upgrades the frequency spectrum state table according to the frequency spectrum detecting result that receives, and determines whether to exist needs to change the base station of operating frequency according to the frequency spectrum state table after upgrading, if then notify this base station to change operating frequency, as switch to standby operating frequency.
Fig. 5 is the flow chart of idle frequence detection of the present invention and distribution method second preferred embodiment.As shown in Figure 5, may further comprise the steps:
Step 51: in double timing gap constantly, the interference that base station A determines to be subjected on operating frequency sends the frequency spectrum detection application greater than pre-set threshold to SCE.
The definite base station that need carry out frequency spectrum detection of step 52:SCE is base station A and base station C, and the base station that need mourn in silence is base station B.
The operating frequency of supposing base station C is identical with base station A, base station A and base station C can be defined as carrying out simultaneously the base station of frequency spectrum detection so.
Step 53:SCE sends the order of mourning in silence to base station B, wherein carries the time range of mourning in silence.
Step 54:SCE sends the frequency spectrum detection order to base station A and base station C, wherein carries the frequency range of detection and the time range of detection.
In this case, the frequency range of described detection can include only the operating frequency of base station A and base station C and the side frequency of operating frequency, or further comprises both the standby operating frequencies and the side frequency of standby operating frequency.
Step 55: base station A and base station C carry out frequency spectrum detection, and simultaneously, each UE of base station B and base station A, base station B and base station C subordinate mourns in silence.
Step 56: base station A and base station C return frequency spectrum detecting result to SCE.
Step 57:SCE upgrades the frequency spectrum state table.
Step 58:SCE determines and base station A and base station C need be switched to standby operating frequency, switches to standby operating frequency order to base station A and base station C transmission.
Step 59: base station A and base station C switch to standby operating frequency, and return response message to SCE.
In actual applications, might be to increase, and frequency spectrum detecting result show that operating frequency itself does not have problem, so then need not to switch to standby operating frequency owing to other reason causes to disturb.
In addition, SCE determine need switch to standby operating frequency after, can determine further also whether standby operating frequency is available, such as, might frequency spectrum detecting result show that standby operating frequency also is authorized to network and resumes, or the side frequency of standby operating frequency is authorized to network and resumes, determine that so then standby operating frequency is unavailable, in this case, can not switch to standby operating frequency order to base station A and base station C transmission, but next is that base station A and base station C redistribute operating frequency and standby operating frequency according to mode shown in Figure 1, and then switches on the operating frequency of redistributing regularly constantly by the time.In addition, for reducing the frequency spectrum detection burden, the frequency range that detects in the step 54 can not comprise the standby operating frequency of base station A and base station C and the side frequency of standby operating frequency, in this case, SCE can't determine whether the standby operating frequency of base station A and base station C is available, so after determining base station A and base station C and need switching to standby operating frequency, can switch to standby operating frequency order to base station A and base station C transmission, afterwards, determine by base station A and base station C oneself whether standby operating frequency is available, how to determine not do restriction, if unavailable, then seek the available free frequency, and coordinate with SCE according to existing mode.
Based on said method, Fig. 6 is the composition structural representation of idle frequence detection of the present invention and distribution system embodiment.This system is applied to as shown in Figure 6, comprising in the mobile cellular net usually: base station (in actual applications, the quantity of base station is generally a plurality of, for simplifying accompanying drawing, has only expressed one herein) and SCE;
SCE is used for determining to carry out the base station of frequency spectrum detection, and the base station of carrying out frequency spectrum detection to needs sends the frequency spectrum detection order, and is the base station assigns operating frequency according to the frequency spectrum detecting result that receives;
The base station is used for carrying out frequency spectrum detection according to described frequency spectrum detection order, and returning frequency spectrum detecting result to SCE after the frequency spectrum detection order that receives from SCE.
In addition, described SCE can be further used for, and is the standby operating frequency of each base station assigns; When finding that by frequency spectrum detecting result the frequency spectrum seizure condition changes, judge whether to exist the base station that need redistribute operating frequency or standby operating frequency, if exist, then redistribute operating frequency or standby operating frequency for corresponding base station; When needs are redistributed operating frequency for the base station, notify this base station to switch to standby operating frequency, and with the operating frequency the redistributed standby operating frequency as this base station.
Described base station also can be further used for, when not receiving the frequency spectrum detection order, if determine from the interference that is subjected on operating frequency greater than the threshold value that sets in advance, then to the application of SCE transmission frequency spectrum detection; SCE is further used for, determine that according to the frequency spectrum detection application that receives needs carry out the base station of frequency spectrum detection, the base station of carrying out frequency spectrum detection to needs sends the frequency spectrum detection order, and determine whether to exist needs to change the base station of operating frequency or standby operating frequency according to the frequency spectrum detecting result that receives, if then notify this base station to change operating frequency or standby operating frequency.
Have again, SCE also can determine need carry out the base station of frequency spectrum detection after, further determine the base station that need mourn in silence, send the order of mourning in silence to base station that needs are mourned in silence, wherein carry the time range of mourning in silence.
SCE can be an entity that is provided with separately or is arranged in existing network entity.
Wherein, can specifically comprise among the SCE shown in Figure 6:
Detecting unit is used for the definite base station that need carry out frequency spectrum detection, and the base station of carrying out frequency spectrum detection to needs sends the frequency spectrum detection order;
Allocation units, being used for according to the frequency spectrum detecting result that receives is the base station assigns operating frequency.
Described allocation units can be further used for, and are the standby operating frequency of each base station assigns; When finding that by frequency spectrum detecting result the frequency spectrum seizure condition changes, judge whether to exist the base station that need redistribute operating frequency or standby operating frequency, if exist, then redistribute operating frequency or standby operating frequency for corresponding base station; In addition, when needs are redistributed operating frequency for the base station, notify this base station to switch to standby operating frequency, and with the operating frequency the redistributed standby operating frequency as this base station.
In addition, described detecting unit also can be further used for, and after the frequency spectrum detection application that receives from the base station, determines to carry out the base station of frequency spectrum detection, and the base station of carrying out frequency spectrum detection to needs sends the frequency spectrum detection order; Allocation units are further used for, and determine whether to exist needs to change the base station of operating frequency or standby operating frequency according to the frequency spectrum detecting result that receives, if then notify this base station to change operating frequency or standby operating frequency.
Have, described detecting unit also can be further used for again, determine need carry out the base station of frequency spectrum detection after, further determine the base station that need mourn in silence, send the order of mourning in silence to base station that needs are mourned in silence, wherein carry the time range of mourning in silence.
Can specifically comprise in the base station shown in Figure 6:
Receiving element is used to receive the frequency spectrum detection order from SCE, carries out frequency spectrum detection according to the frequency spectrum detection order that receives;
Transmitting element is used for returning frequency spectrum detecting result to SCE.
In addition, also can further comprise:
Acquiring unit is used to obtain operating frequency and/or the standby operating frequency that SCE is a base station assigns;
Request unit is used for when not receiving the frequency spectrum detection order, if determine interference that described base station is subjected to greater than the threshold value that sets in advance on operating frequency, sends the frequency spectrum detection application to described SCE.
The concrete workflow of system shown in Figure 6 embodiment please refer to the respective description among the method embodiment, repeats no more herein.
In a word, adopt technical scheme of the present invention, can realize that rational idle frequence detects and distribution.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (26)
1. an idle frequence detects and distribution method, it is characterized in that this method is applied in the mobile cellular net spectrum controller SCE is set in network, and this method comprises:
Described SCE determines to carry out the base station of frequency spectrum detection, and the base station of carrying out frequency spectrum detection to needs sends the frequency spectrum detection order;
Described SCE receives the base station that need carry out frequency spectrum detection and carries out the frequency spectrum detecting result returned after the frequency spectrum detection according to the frequency spectrum detection order that receives;
Described SCE is the base station assigns operating frequency according to the frequency spectrum detecting result that receives.
2. method according to claim 1 is characterized in that, place, base station network carries the detection frequency for leasing network in the described frequency spectrum detection order, and described detection frequency is the frequency of authorisation network.
3. method according to claim 2 is characterized in that, further carries detection time in the described frequency spectrum detection order.
4. method according to claim 1 is characterized in that, this method further comprises: described SCE is the standby operating frequency of each base station assigns in the network.
5. method according to claim 4, it is characterized in that, when SCE finds that by frequency spectrum detecting result the frequency spectrum seizure condition changes, SCE judges whether to exist the base station that need redistribute operating frequency or standby operating frequency, if exist, then redistribute operating frequency or standby operating frequency for corresponding base station.
6. method according to claim 5 is characterized in that, when needs were redistributed operating frequency for the base station, described SCE notified this base station to switch to standby operating frequency, and with the operating frequency the redistributed standby operating frequency as this base station.
7. method according to claim 1 is characterized in that, this method further comprises:
If arbitrary base station when not receiving the frequency spectrum detection order, is determined from the interference that is subjected on operating frequency greater than the threshold value that sets in advance, then to the application of described SCE transmission frequency spectrum detection;
Described SCE determines that according to the frequency spectrum detection application that receives needs carry out the base station of frequency spectrum detection, and carries out the base station transmission frequency spectrum detection order of frequency spectrum detection to needs;
Described SCE receives the base station that need carry out frequency spectrum detection and carries out the frequency spectrum detecting result returned after the frequency spectrum detection according to the frequency spectrum detection order that receives;
Described SCE determines whether to exist needs to change the base station of operating frequency or standby operating frequency according to the frequency spectrum detecting result that receives, if then notify this base station to change operating frequency or standby operating frequency.
8. method according to claim 7 is characterized in that, the operating frequency of this base station of described change comprises: notify this base station to switch to standby operating frequency.
9. method according to claim 1 is characterized in that, described SCE periodically or aperiodically sends the frequency spectrum detection order to the base station.
10. according to each described method in the claim 1～9, it is characterized in that described definite needs carry out further comprising after the base station of frequency spectrum detection:
The base station that definite needs are mourned in silence sends the order of mourning in silence to the base station that needs are mourned in silence, and wherein carries the time range of mourning in silence;
When frequency spectrum detection is carried out in the base station that needs carry out frequency spectrum detection, the base station that need mourn in silence and subordinate's thereof user terminal UE and the UE that need carry out the base station subordinate of frequency spectrum detection all will mourn in silence.
11. an idle frequence detects and distribution system, it is characterized in that this system applies comprises in the mobile cellular net: above base station and spectrum controller SCE;
Described SCE is used for determining to carry out the base station of frequency spectrum detection, and the base station of carrying out frequency spectrum detection to needs sends the frequency spectrum detection order, and is the base station assigns operating frequency according to the frequency spectrum detecting result that receives;
Described base station is used for carrying out frequency spectrum detection according to described frequency spectrum detection order, and returning frequency spectrum detecting result to described SCE after the frequency spectrum detection order that receives from described SCE.
12. system according to claim 11 is characterized in that, described SCE is further used for, and is the standby operating frequency of each base station assigns.
13. system according to claim 12, it is characterized in that, described SCE is further used for, when finding that by frequency spectrum detecting result the frequency spectrum seizure condition changes, judge whether to exist the base station that to redistribute operating frequency or standby operating frequency, if exist, then redistribute operating frequency or standby operating frequency for corresponding base station.
14. system according to claim 13, it is characterized in that described SCE is further used for, when needs are redistributed operating frequency for the base station, notify this base station to switch to standby operating frequency, and with the operating frequency the redistributed standby operating frequency as this base station.
15. system according to claim 11 is characterized in that,
Described base station is further used for, when not receiving the frequency spectrum detection order, if determine from the interference that is subjected on operating frequency greater than the threshold value that sets in advance, then to the application of described SCE transmission frequency spectrum detection;
Described SCE is further used for, determine that according to the frequency spectrum detection application that receives needs carry out the base station of frequency spectrum detection, the base station of carrying out frequency spectrum detection to needs sends the frequency spectrum detection order, and determine whether to exist needs to change the base station of operating frequency or standby operating frequency according to the frequency spectrum detecting result that receives, if then notify this base station to change operating frequency or standby operating frequency.
16. according to each described system in the claim 11～15, it is characterized in that, described SCE is further used for, determine need carry out the base station of frequency spectrum detection after, further determine the base station that to mourn in silence, send the order of mourning in silence to the base station that needs are mourned in silence, wherein carry the time range of mourning in silence.
17., it is characterized in that described SCE is an entity that is provided with separately or is arranged in existing network entity according to each described system in the claim 11～15.
18. a spectrum controller SCE is characterized in that, this SCE is applied to comprise in the mobile cellular net:
Detecting unit is used for the definite base station that need carry out frequency spectrum detection, and the base station of carrying out frequency spectrum detection to needs sends the frequency spectrum detection order;
Allocation units, being used for according to the frequency spectrum detecting result that receives is the base station assigns operating frequency.
19. SCE according to claim 18 is characterized in that, described allocation units are further used for, and are the standby operating frequency of each base station assigns.
20. SCE according to claim 19, it is characterized in that, described allocation units are further used for, when finding that by frequency spectrum detecting result the frequency spectrum seizure condition changes, judge whether to exist the base station that to redistribute operating frequency or standby operating frequency, if exist, then redistribute operating frequency or standby operating frequency for corresponding base station.
21. SCE according to claim 20, it is characterized in that described allocation units are further used for, when needs are redistributed operating frequency for the base station, notify this base station to switch to standby operating frequency, and with the operating frequency the redistributed standby operating frequency as this base station.
22. SCE according to claim 18, it is characterized in that, described detecting unit is further used for, after the frequency spectrum detection application that receives from the base station, determine that according to described frequency spectrum detection application needs carry out the base station of frequency spectrum detection, the base station of carrying out frequency spectrum detection to needs sends the frequency spectrum detection order;
Described allocation units are further used for, and determine whether to exist needs to change the base station of operating frequency or standby operating frequency according to the frequency spectrum detecting result that receives, if then notify this base station to change operating frequency or standby operating frequency.
23. according to each described SCE in the claim 18～22, it is characterized in that, described detecting unit is further used for, determine need carry out the base station of frequency spectrum detection after, further determine the base station that to mourn in silence, send the order of mourning in silence to the base station that needs are mourned in silence, wherein carry the time range of mourning in silence.
24. a base station is characterized in that, comprising:
Receiving element is used to receive the frequency spectrum detection order from spectrum controller SCE, carries out frequency spectrum detection according to the frequency spectrum detection order that receives;
Transmitting element is used for returning frequency spectrum detecting result to described SCE.
25. base station according to claim 24 is characterized in that, further comprises in the described base station:
Acquiring unit is used to obtain operating frequency and/or the standby operating frequency that described SCE is described base station assigns.
26. according to claim 24 or 25 described base stations, it is characterized in that, further comprise in the described base station:
Request unit is used for when not receiving the frequency spectrum detection order, if determine interference that described base station is subjected to greater than the threshold value that sets in advance on operating frequency, sends the frequency spectrum detection application to described SCE.
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