CN102387553A - Initial configuration method and device for wireless backhaul link - Google Patents
Initial configuration method and device for wireless backhaul link Download PDFInfo
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Abstract
The invention discloses an initial configuration method and an initial configuration device for a wireless backhaul link. The method comprises the following steps of: starting an access node, and reporting information to a base station by using an original authorized frequency spectrum; and reconfiguring a wireless backhaul link between the base station and the access point according to a TVWS (Television White Spectrum) resource distributed by a system by using the base station, and switching the wireless backhaul link onto the distributed TVWS resource. According to the method and the device, the resource distribution problem of the wireless backhaul link is solved, and the volume or service quality of a wireless access link is not influenced simultaneously.
Description
Technical field
The present invention relates to radio communication and cognitive radio technology field, more specifically, relate to a kind of initial configuration method and device of wireless backhaul link.
Background technology
For LTE (Long Term Evolution; Long Term Evolution) technology or LTE-A (Long Term Evolution-advanced; The Long Term Evolution of evolution) technology; Present AP (Access Point, access node) mainly contains following several kinds: the macro cell base station of enhancing (enhanced Node Base Station), relaying (Relay), picocell base station (Femto NB), microcell base station (Pico NB) and Home eNodeB (home NB).What have between these access nodes can directly link to each other, and the link between the access node that wherein can directly link to each other is called back haul link (backhaul link).
Backhaul link possibly be wireless in LTE/LTE-A, like following scene: the access node of the covering of remote area, interim hot spot region, disaster relief period, nomadic state etc.Under these scenes, because it is too high to dispose wired link cost, perhaps is unable to estimate its position and carries out wired covering in advance, perhaps wire communication is interrupted, and all can't effectively cover through wired connection.And Radio Link can provide service rapidly, therefore, need be this part backhaul link dividing frequency resource, thereby carry out wireless connection.
And under the above-mentioned scene,, still consider regulation at present basically according to the spectrum management tissue to the resource allocation of wireless backhaul link, be used for wireless backhaul link for the frequency spectrum resource of LTE/LTE-A system a part of authorized appropriation and connect.Because the frequency spectrum of the finally resulting LTE/LTE-A of being used for system of each operator operation is very limited, a part of resource of this division will certainly cause damage for the mode of wireless backhaul link to the capacity and the service quality of access link.Although through the strict physical layer and the definition of upper-layer protocol, can reduce this loss as far as possible, this loss is bound to exist.
Therefore, how to solve the resource allocation problem of wireless backhaul link, the while does not impact the capacity or the service quality of access link, is the problem that needs solution in the prior art.
Summary of the invention
The technical problem that the present invention solves provides a kind of initial configuration method and device of wireless backhaul link, solves the resource allocation problem of wireless backhaul link, and the while does not impact the capacity or the service quality of access link.
For solving the problems of the technologies described above, the invention provides a kind of initial configuration method of wireless backhaul link, said method comprises:
Access node utilizes former mandate frequency spectrum to the base station reporting information after opening;
The reprovision of the wireless backhaul link between this base station and this access node is implemented according to TV band blank frequency spectrum (TVWS) resource of system assignment in the base station, this wireless backhaul link is switched on the TVWS frequency spectrum resource of distribution.
Wherein, said base station is that said wireless backhaul link is initiated TVWS frequency spectrum resource request for allocation to said system;
After said frequency spectrum resource request for allocation is received by said system,, confirm that available TVWS frequency spectrum resource distributes to said base station according to the available TVWS information of safeguarding.
Wherein, said system is according to the TVWS information of obtaining, and native system is safeguarded said available TVWS information to the operating position of TVWS frequency spectrum resource;
Wherein, said TVWS information is meant not the information of the TV band frequency spectrum resource that is taken by TV band mandate business, and said available TVWS information is meant not the information of the TVWS frequency spectrum resource that is used by native system.
Wherein, after said frequency spectrum resource request for allocation is received by said system, according to the said available TVWS information of safeguarding, if current have available TVWS frequency spectrum resource, the TVWS frequency spectrum resource that then directly can use for said base station assigns; If current do not have an available TVWS frequency spectrum resource, then through with native system in other base station negotiate, the TVWS frequency spectrum resource that use other base station is distributed to said base station.
Wherein, after said frequency spectrum resource request for allocation is received by said system, if current do not have an available TVWS frequency spectrum resource, and with native system in other base station negotiate failure, then send failure response and give said base station, refuse to be said base station assigns frequency spectrum resource;
After said failure response is received in said base station, confirm with said access node between said wireless backhaul link continue the former mandate frequency spectrum resource of use.
Wherein, after said system is the TVWS frequency spectrum resource that can use of base station assigns, the said available TVWS information of safeguarding is upgraded.
Wherein, Said base station is when initiating said frequency spectrum resource request for allocation to system; Only according to and each access node of its subordinate between the actual demand application frequency spectrum resource of wireless backhaul link; Perhaps, apply for certain amount of resources reserved, with the wireless backhaul link between the access node of setting up and newly opening.
The present invention also provides a kind of initial configuration device of wireless backhaul link, and said device comprises first configuration module and second configuration module in the base station in the access node,
Said first configuration module is used for after access node is opened, utilizing former mandate frequency spectrum to the base station reporting information;
Said second configuration module is used for the TVWS frequency spectrum resource according to system assignment, implements the reprovision of the wireless backhaul link between this base station and this access node, this wireless backhaul link is switched on the TVWS frequency spectrum resource of distribution.
Wherein, said device also comprises frequency spectrum resource request for allocation module and the frequency spectrum resource distribution module in the system in the base station,
Said frequency spectrum resource request for allocation module, the wireless backhaul link that is used between base station and each the subordinate's access node is initiated the frequency spectrum resource request for allocation to said frequency spectrum resource distribution module;
Said frequency spectrum resource distribution module, be used to receive said frequency spectrum resource request for allocation after, according to the available TVWS information of safeguarding, confirm that available TVWS frequency spectrum resource distributes to said base station.
Wherein, said frequency spectrum resource distribution module is further used for, and according to the TVWS information of obtaining, and native system is safeguarded said available TVWS information to the operating position of TVWS frequency spectrum resource;
Wherein, said TVWS information is meant not the information of the TV band frequency spectrum resource that is taken by TV band mandate business, and said available TVWS information is meant not the information of the TVWS frequency spectrum resource that is used by native system.
Wherein, said frequency spectrum resource distribution module is further used for, receive said frequency spectrum resource request for allocation after, according to the said available TVWS information of safeguarding, if current have available TVWS frequency spectrum resource, the TVWS frequency spectrum resource that then directly can use for said base station assigns; If current do not have an available TVWS frequency spectrum resource, then through with native system in other base station negotiate, the TVWS frequency spectrum resource that use other base station is distributed to said base station.
Wherein, said frequency spectrum resource distribution module is further used for, receive said frequency spectrum resource request for allocation after; If current do not have an available TVWS frequency spectrum resource; And with other base station negotiate failure in the native system, then send failure response and give said base station, refuse to be said base station assigns frequency spectrum resource;
After said failure response is received in said base station, confirm with said access node between said wireless backhaul link continue the former mandate frequency spectrum resource of use.
Wherein, said frequency spectrum resource distribution module is further used for, and behind the TVWS frequency spectrum resource that can use for base station assigns, the said available TVWS information of safeguarding is upgraded.
Wherein, Said frequency spectrum resource request for allocation module is further used for; When initiating said frequency spectrum resource request for allocation to said frequency spectrum resource distribution module, only according to and each access node of its subordinate between the actual demand application frequency spectrum resource of wireless backhaul link, perhaps; Apply for certain amount of resources reserved, with the wireless backhaul link between the access node of setting up and newly opening.
The present invention obtains available TVWS frequency spectrum resource, and utilizes this available TVWS frequency spectrum resource to set up wireless backhaul link the operating position information of TV frequency range frequency spectrum through each base station in accessing database and the collection native system.
Compared with prior art, the present invention has following beneficial effect at least:
1. solve the resource allocation problem of wireless backhaul link, the while does not impact the capacity or the service quality of wireless access links;
2. dynamically set up wireless backhaul link, need not to overlay in advance and establish cable (possibly also not knowing the place of cable laying in advance), saved man power and material's cost;
3. for wireless backhaul link, it be may command that its foundation and removal only need through software, has increased the flexibility of backhaul link.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the initial configuration device application scenarios sketch map of the wireless backhaul link of the embodiment of the invention;
Fig. 2 is the schematic flow sheet of the wireless backhaul link initial configuration of the embodiment of the invention;
Fig. 3 is the signaling process figure of the wireless backhaul link initial configuration of the embodiment of the invention;
Fig. 4 is the signaling process figure of the wireless backhaul link initial configuration of another embodiment of the present invention.
Embodiment
For overcoming the deficiency of prior art; The utilance of considering existing television spectrum is not high; And stability better, and the present invention proposes a kind of resource allocation methods of the wireless backhaul link based on cognitive radio technology, and its core concept is: according to current wireless backhaul link demand and TVWS (the TV White Spaces that collects; TV frequency range blank frequency spectrum) use information; Use the TVWS frequency spectrum resource and set up interim wireless backhaul link, thereby solve the resource allocation problem of wireless backhaul link, can the capacity or the service quality of wireless access links not impacted simultaneously.
Based on above-mentioned thought, the present invention provides a kind of resource allocation methods of wireless backhaul link, specifically adopts following technical scheme:
Access node utilizes former mandate frequency spectrum to the base station reporting information after opening;
The reprovision of the wireless backhaul link between this base station and this access node is implemented according to the TVWS frequency spectrum resource of system assignment in the base station, this wireless backhaul link is switched on the TVWS frequency spectrum resource of distribution.
Further, said base station is that said wireless backhaul link is initiated the frequency spectrum resource request for allocation to said system;
After said frequency spectrum resource request for allocation is received by said system,, confirm that available TVWS frequency spectrum resource distributes to said base station according to the available TVWS information of safeguarding.
Further, said system is according to the TVWS information of obtaining, and native system is safeguarded said available TVWS information to the operating position of TVWS frequency spectrum resource;
Wherein, said TVWS information is meant not the information of the TV band frequency spectrum resource that is taken by TV band mandate business, and said available TVWS information is meant not the information of the TVWS frequency spectrum resource that is used by native system.
Further, after said frequency spectrum resource request for allocation is received by said system, according to the said available TVWS information of safeguarding, if current have available TVWS frequency spectrum resource, the TVWS frequency spectrum resource that then directly can use for said base station assigns; If current do not have an available TVWS frequency spectrum resource, then through with native system in other base station negotiate, the TVWS frequency spectrum resource that use other base station is distributed to said base station.
Further, after said frequency spectrum resource request for allocation is received by said system, if current do not have an available TVWS frequency spectrum resource, and with native system in other base station negotiate failure, then send failure response and give said base station, refuse to be said base station assigns frequency spectrum resource;
After said failure response is received in said base station, confirm with said access node between said wireless backhaul link continue the former mandate frequency spectrum resource of use.
For the ease of setting forth the present invention, below will combine accompanying drawing and specific embodiment that the enforcement of technical scheme of the present invention is described in further detail.
Fig. 1 shows the wireless backhaul link initial configuration procedure of the embodiment of the invention, and referring to Fig. 1, the initial configuration flow process of present embodiment mainly may further comprise the steps:
Step 1: system obtains TVWS information, and safeguards available TVWS information;
Wherein, TVWS information is meant not the information of the TV band frequency spectrum resource that is taken by TV frequency range mandate business, and available TVWS information is meant not the information of the TVWS frequency spectrum resource that is used by native system.
Described TVWS information can include but not limited to available channel (containing working frequency points and bandwidth), coverage, the possible lasting duration and the maximum transmission power of permission thereof etc.
Step 2: newly open access node and utilize former mandate frequency spectrum to system's reporting information;
Step 3: TVWS frequency spectrum resource Decision of Allocation is done by system;
Wherein, the foundation of Decision of Allocation mainly comprises: the available TVWS information of system maintenance, and newly open reporting information of access node etc.
Described Decision of Allocation can be formulated according to the demand of practical application scene, will provide the concrete example of Decision of Allocation hereinafter.
Step 4: the wireless Backhaul link that obtains the TVWS frequency spectrum resource implements reprovision, switches on the TVWS frequency spectrum resource of acquisition to communicate;
Step 5: system update can be used TVWS information.
The application scenarios of the embodiment of the invention is as shown in Figure 2, and the initial configuration device of the wireless backhaul link in the present embodiment relates generally to following network element:
Television services database (TV database; Be called for short TVDB): can be provided by TV operator or third party, the content of TV database is a television operator local or comprise the operating position of local several regional television spectrums (channel), i.e. 1. frequency spectrum (channel) states that using; Include but not limited to: channel; Bandwidth, the possible duration, D/U requires (useful signal of expecting for television receiver and the power ratio of interference signal); Spectral mask, information such as coverage and isolation strip; 2. untapped frequency spectrum (channel) state includes but not limited to: channel, allows information such as maximum transmission power at bandwidth of operation, coverage, possible duration; 3. do not allow channel (possibly be management domain restricted channel or the operator's reserved access channel etc.) information used, include but not limited to: channel, information such as bandwidth of operation.
Center control nodes (Central Control Point is called for short CCP): can be to be fixedly coupled between CCP and TVDB; 1. converge frequency spectrum operating position information, obtain and safeguard the available TVWS information of corresponding each BS from each BS and TVDB; 2. be responsible for to each BS distribution T VWS resource, comprise that initial spectrum distributes, and the resource coordination between wireless backhaul link distribute under the different B S, and the link switchover of main user when occurring distributes.
Base station (Base Station is called for short BS): BS can directly link to each other with CCP, and its function includes but not limited to: each coupled wireless backhaul link is arrived in the TVWS resource allocation that obtains 1.; 2. change or adjust the parameter of wireless communication technology, for example, modulation type, transmitting power; 3. administer and maintain frequency spectrums of operation, for example, working frequency points and frequency range; 4. be responsible for and the communicating by letter of center control nodes; 5. frequency spectrum perception function; 6. perception data disposal ability.
Access node (AP): AP can be relaying (Relay), picocell base station (Femto NB), microcell base station (Pico NB) and Home eNodeB (home NB).AP converges user profile, and communicates (constituting backhaul link) with BS, through AP, carries out information interaction between user and the BS.The coverage of AP is compared with BS, and reduction is by a relatively large margin arranged.The AP function includes but not limited to: 1. change or adjust the parameter of wireless communication technology, for example, modulation type, transmitting power; 2. adjust working frequency points and frequency range; 3. frequency spectrum perception; 4. with the two-way communication of user and BS.
In addition, a kind of initial configuration device of wireless backhaul link is provided also in another embodiment of the present invention, said device comprises first configuration module and second configuration module in the base station in the access node,
Said first configuration module is used for after access node is opened, utilizing former mandate frequency spectrum to the base station reporting information;
Said second configuration module is used for the TVWS frequency spectrum resource according to system assignment, implements the reprovision of the wireless backhaul link between this base station and this access node, this wireless backhaul link is switched on the TVWS frequency spectrum resource of distribution.
Wherein, said device also comprises frequency spectrum resource request for allocation module and the frequency spectrum resource distribution module in the system in the base station,
Said frequency spectrum resource request for allocation module, the wireless backhaul link that is used between base station and each the subordinate's access node is initiated the frequency spectrum resource request for allocation to said frequency spectrum resource distribution module;
Said frequency spectrum resource distribution module, be used to receive said frequency spectrum resource request for allocation after, according to the available TVWS information of safeguarding, confirm that available TVWS frequency spectrum resource distributes to said base station.
Wherein, said frequency spectrum resource distribution module is further used for, and according to the TVWS information of obtaining, and native system is safeguarded said available TVWS information to the operating position of TVWS frequency spectrum resource;
Wherein, said TVWS information is meant not the information of the TV band frequency spectrum resource that is taken by TV band mandate business, and said available TVWS information is meant not the information of the TVWS frequency spectrum resource that is used by native system.
Wherein, said frequency spectrum resource distribution module is further used for, receive said frequency spectrum resource request for allocation after, according to the said available TVWS information of safeguarding, if current have available TVWS frequency spectrum resource, the TVWS frequency spectrum resource that then directly can use for said base station assigns; If current do not have an available TVWS frequency spectrum resource, then through with native system in other base station negotiate, the TVWS frequency spectrum resource that use other base station is distributed to said base station.
Wherein, said frequency spectrum resource distribution module is further used for, receive said frequency spectrum resource request for allocation after; If current do not have an available TVWS frequency spectrum resource; And with other base station negotiate failure in the native system, then send failure response and give said base station, refuse to be said base station assigns frequency spectrum resource;
After said failure response is received in said base station, confirm with said access node between said wireless backhaul link continue the former mandate frequency spectrum resource of use.
Wherein, said frequency spectrum resource distribution module is further used for, and behind the TVWS frequency spectrum resource that can use for base station assigns, the said available TVWS information of safeguarding is upgraded.
Wherein, Said frequency spectrum resource request for allocation module is further used for; When initiating said frequency spectrum resource request for allocation to said frequency spectrum resource distribution module, only according to and each access node of its subordinate between the actual demand application frequency spectrum resource of wireless backhaul link, perhaps; Apply for certain amount of resources reserved, with the wireless backhaul link between the access node of setting up and newly opening.
Below will combine two specific embodiments that the signaling process of the resource allocation methods of wireless backhaul link of the present invention is described further.
Embodiment one
As shown in Figure 3, the resource allocation methods of the wireless backhaul link of present embodiment specifically describes as follows:
Step 101:CCP obtains TVWS information among the TVDB (information of the TV band frequency spectrum resource that is not promptly taken by TV band mandate business); Include but not limited to available channel (containing working frequency points and bandwidth), coverage, the possible lasting duration and the maximum transmission power of permission thereof; CCP is according to the TVWS information obtained, and the native system of storing among the CCP safeguards available TVWS information to the operating position information of TVWS frequency spectrum resource (below be also referred to as TVWS use information), the information of the TVWS frequency spectrum resource that is not promptly used by native system;
Wherein, the mode that CCP obtains TVWS information can comprise a kind of or its combination in any in the following mode: CCP cycle access TVDB, or CCP accessing TV DB as required, or TVDB proactive notification CCP.
Step 102:AP works in former mandate frequency spectrum after opening;
Step 103:AP reporting information comprises the working frequency range, positional information of maximum transmission power, support, the ability that accesses terminal etc.;
The information that step 104:BS reports according to AP, will for and wireless backhaul link between it distribute to CCP request TVWS frequency spectrum resource;
The resource bid that step 105:CCP reports according to BS, and current available TVWS information makes a strategic decision, and confirms to distribute to the radio spectrum resources of this BS, and allocation result is sent to BS.If do not have available TVWS frequency spectrum resource for this BS; CCP at first carries out the TVWS frequency spectrum resource with other BS to be consulted to distribute, and promptly seeks other BS through withdrawing from or switching, and for example can the wireless backhaul link under the BS of other low priority be withdrawed from its shared TVWS frequency spectrum resource; Perhaps; For the wireless backhaul link under the BS with a plurality of available TVWS frequency spectrum resources, can it be switched on other available TVWS frequency spectrum resource, and abdicate the TVWS frequency spectrum resource that is using; It is distributed to the BS that sends application, and allocation result is sent to relevant BS.If still do not have available TVWS frequency spectrum resource after consulting, then return failure response to the base station, following operation will can not carried out in the base station this moment, and this is wireless, and backhaul link continues to use former mandate frequency spectrum resource.
Step 106:BS confirms the employed Radio Resource of coupled backhaul link according to its subordinate AP information that reports and the TVWS frequency spectrum resource that obtains;
Step 107: the wireless backhaul link that frequency spectrums of operation changes implements reprovision, switches on the new frequency spectrum resource to communicate;
Wherein, The wireless backhaul link that said frequency spectrums of operation changes comprises the wireless backhaul link between new access node and the base station, also comprises other BS that withdraws from or switch that CCP holds consultation and the wireless backhaul link between its access node.
Step 108:BS sends resource allocation lastest imformation, CCP feedback acknowledgment message to CCP;
Step 109:CCP upgrades TVWS according to resource allocation conditions and uses information and available TVWS information.
Embodiment two
As shown in Figure 4, the resource allocation methods of the wireless backhaul link of present embodiment specifically describes as follows:
Step 201:CCP obtains TVWS information among the TVDB, is taken situation information in conjunction with storing TVWS among the CCP by system, safeguards corresponding available TVWS information;
Wherein, the mode that CCP obtains TVWS information can be CCP cycle access TVDB, or CCP accessing TV DB as required, or TVDB proactive notification CCP, or its combination.
Step 202:AP opens, and works in former mandate frequency spectrum;
Step 203:AP reporting information includes but not limited to the working frequency range, positional information of maximum transmission power, support, the ability that accesses terminal etc.;
The information that step 204:BS reports according to AP, if BS exist before CCP distribute to its reservation TVWS frequency spectrum resource, will be that this AP and the wireless backhaul link between it distribute and reserve the TVWS frequency spectrum resource;
The actual demand of only pressing AP with BS in the previous embodiment one is different to CCP initiation TVWS resource request; BS in the present embodiment; For the first time to CCP application TVWS frequency spectrum resource the time,, in the application resource certain reservation amount is arranged according to cell business volume statistics in early stage; So that when newly opening AP subsequently, directly it is reserved the TVWS resource allocation.Accordingly in this case, BS need safeguard this part reserved resource, is available TVWS resource to guarantee it.If do not have the TVWS of reservation resource among the BS, then can carry out the application of TVWS frequency spectrum resource according to the operation among the embodiment one.
Step 205: the wireless backhaul link that frequency spectrums of operation changes implements reprovision, switches on the new resources to communicate;
Step 206:BS sends resource allocation lastest imformation, CCP feedback acknowledgment message to CCP;
Step 207:CCP upgrades TVWS according to resource allocation conditions and uses information and available TVWS information.
More than be merely preferred case study on implementation of the present invention; Be not limited to the present invention; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof, those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to accomplish through program, said program can be stored in the computer-readable recording medium, like read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize.Correspondingly, each the module/unit in the foregoing description can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Claims (14)
1. the initial configuration method of a wireless backhaul link is characterized in that, said method comprises:
Access node utilizes former mandate frequency spectrum to the base station reporting information after opening;
The reprovision of the wireless backhaul link between this base station and this access node is implemented according to TV band blank frequency spectrum (TVWS) resource of system assignment in the base station, this wireless backhaul link is switched on the TVWS frequency spectrum resource of distribution.
2. the method for claim 1 is characterized in that,
Said base station is that said wireless backhaul link is initiated TVWS frequency spectrum resource request for allocation to said system;
After said frequency spectrum resource request for allocation is received by said system,, confirm that available TVWS frequency spectrum resource distributes to said base station according to the available TVWS information of safeguarding.
3. method as claimed in claim 2 is characterized in that,
Said system is according to the TVWS information of obtaining, and native system is safeguarded said available TVWS information to the operating position of TVWS frequency spectrum resource;
Wherein, said TVWS information is meant not the information of the TV band frequency spectrum resource that is taken by TV band mandate business, and said available TVWS information is meant not the information of the TVWS frequency spectrum resource that is used by native system.
4. method as claimed in claim 3 is characterized in that,
After said frequency spectrum resource request for allocation is received by said system, according to the said available TVWS information of safeguarding, if current have available TVWS frequency spectrum resource, the TVWS frequency spectrum resource that then directly can use for said base station assigns; If current do not have an available TVWS frequency spectrum resource, then through with native system in other base station negotiate, the TVWS frequency spectrum resource that use other base station is distributed to said base station.
5. method as claimed in claim 4 is characterized in that,
After said frequency spectrum resource request for allocation is received by said system, if current do not have an available TVWS frequency spectrum resource, and with native system in other base station negotiate failure, then send failure response and give said base station, refuse to be said base station assigns frequency spectrum resource;
After said failure response is received in said base station, confirm with said access node between said wireless backhaul link continue the former mandate frequency spectrum resource of use.
6. method as claimed in claim 4 is characterized in that,
After said system is the TVWS frequency spectrum resource that can use of base station assigns, the said available TVWS information of safeguarding is upgraded.
7. like each described method of claim 1 to 6, it is characterized in that,
Said base station is when initiating said frequency spectrum resource request for allocation to system; Only according to and each access node of its subordinate between the actual demand application frequency spectrum resource of wireless backhaul link; Perhaps, apply for certain amount of resources reserved, with the wireless backhaul link between the access node of setting up and newly opening.
8. the initial configuration device of a wireless backhaul link is characterized in that, said device comprises first configuration module and second configuration module in the base station in the access node,
Said first configuration module is used for after access node is opened, utilizing former mandate frequency spectrum to the base station reporting information;
Said second configuration module is used for the TVWS frequency spectrum resource according to system assignment, implements the reprovision of the wireless backhaul link between this base station and this access node, this wireless backhaul link is switched on the TVWS frequency spectrum resource of distribution.
9. device as claimed in claim 8 is characterized in that, said device also comprises frequency spectrum resource request for allocation module and the frequency spectrum resource distribution module in the system in the base station,
Said frequency spectrum resource request for allocation module, the wireless backhaul link that is used between base station and each the subordinate's access node is initiated the frequency spectrum resource request for allocation to said frequency spectrum resource distribution module;
Said frequency spectrum resource distribution module, be used to receive said frequency spectrum resource request for allocation after, according to the available TVWS information of safeguarding, confirm that available TVWS frequency spectrum resource distributes to said base station.
10. device as claimed in claim 9 is characterized in that,
Said frequency spectrum resource distribution module is further used for, and according to the TVWS information of obtaining, and native system is safeguarded said available TVWS information to the operating position of TVWS frequency spectrum resource;
Wherein, said TVWS information is meant not the information of the TV band frequency spectrum resource that is taken by TV band mandate business, and said available TVWS information is meant not the information of the TVWS frequency spectrum resource that is used by native system.
11. device as claimed in claim 10 is characterized in that,
Said frequency spectrum resource distribution module is further used for, receive said frequency spectrum resource request for allocation after, according to the said available TVWS information of safeguarding, if current have available TVWS frequency spectrum resource, the TVWS frequency spectrum resource that then directly can use for said base station assigns; If current do not have an available TVWS frequency spectrum resource, then through with native system in other base station negotiate, the TVWS frequency spectrum resource that use other base station is distributed to said base station.
12. device as claimed in claim 10 is characterized in that,
Said frequency spectrum resource distribution module is further used for; After receiving said frequency spectrum resource request for allocation, if current do not have an available TVWS frequency spectrum resource, and with native system in other base station negotiate failure; Then send failure response and give said base station, refuse to be said base station assigns frequency spectrum resource;
After said failure response is received in said base station, confirm with said access node between said wireless backhaul link continue the former mandate frequency spectrum resource of use.
13. device as claimed in claim 11 is characterized in that,
Said frequency spectrum resource distribution module is further used for, and behind the TVWS frequency spectrum resource that can use for base station assigns, the said available TVWS information of safeguarding is upgraded.
14. device as claimed in claim 9 is characterized in that,
Said frequency spectrum resource request for allocation module is further used for; When initiating said frequency spectrum resource request for allocation to said frequency spectrum resource distribution module; Only according to and each access node of its subordinate between the actual demand application frequency spectrum resource of wireless backhaul link; Perhaps, apply for certain amount of resources reserved, with the wireless backhaul link between the access node of setting up and newly opening.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102773684A CN102387553A (en) | 2010-09-03 | 2010-09-03 | Initial configuration method and device for wireless backhaul link |
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| WO2017181678A1 (en) * | 2016-04-19 | 2017-10-26 | 宇龙计算机通信科技(深圳)有限公司 | Method of allocating licensed spectrum to terminal small cell, associated apparatus and system |
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