WO2012100565A1

WO2012100565A1 - Method and system for configuring wireless link

Info

Publication number: WO2012100565A1
Application number: PCT/CN2011/081139
Authority: WO
Inventors: 刘星; 李峰; 李岩; 张力; 周栋; 王赵
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-01-30
Filing date: 2011-10-21
Publication date: 2012-08-02
Also published as: CN102625317B; CN102625317A

Abstract

Disclosed are a method and system for configuring a wireless link. An application for idle spectrum resources can be transmitted to a central control node by a base station attributed thereto, the application for idle spectrum resources is aggregated by the central control node, and a request for idle spectrum resources allocation is initiated to an attributed databank; the idle spectrum resources among subordinate central control nodes are coordinately distributed by the databank on the basis of the request for idle spectrum resources allocation. The central control node can also respond to the databank to complete the coordinated distribution of the idle spectrum resources. The method and system of the present invention allow reasonable distribution of the idle spectrum resources of a main system, thus solving a possible problem of interference between subsystems when multiple subsystems or multiple operators compete for the main system resources, at the same time, ensuring fair access to the idle spectrum resources of the main system among subsystems or operators; solving the possible problem of interference between base stations within a subsystem or an operator; and ensuring fair access among base stations.

Description

Wireless link configuration method and system

The present invention relates to the field of wireless communications, and in particular to a cognitive radio technology and a database (DB, Database) method for coordinating allocation of spectrum resources. Background technique

With the continuous advancement of radio technology, a variety of radio services have emerged, and the spectrum resources supported by the radio service are limited. In the face of increasing demand for bandwidth, spectrum resources are extremely tight; On the other hand, in the traditional fixed spectrum allocation mode, the utilization of spectrum resources is not high. The busy system (secondary system) is used to borrow the spectrum resources of the system with low spectrum utilization (primary system), and the secondary system adopts a certain protection mechanism to improve the spectrum of the overall network without causing interference to the primary system. Resource utilization. This has become the main means to resolve the contradiction between increased demand and limited resources, and is also the core idea of cognitive radio technology.

Due to the presence of multiple secondary systems or operators, there may be secondary system or inter-carrier interference problems when borrowing primary system spectrum resources, which requires reliable coordination mechanisms between secondary systems or operators; On the other hand, multiple secondary systems or operators compete for primary system resources, and need to ensure access fairness of secondary systems or operators, avoiding the need for a secondary system or operator to urgently borrow primary system resources, but not satisfied. And a sub-system or operator's own resources are not very scarce (such as borrowing the main system resources just to enhance the user's feelings) but get more borrowing resources. Summary of the invention

The main purpose of the present invention is to provide a wireless link configuration method and system, to WS, White Spaces spectrum resources are allocated reasonably.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

A wireless link configuration method includes:

The base station sends an idle spectrum resource request to the home central control node, the central control node aggregates the idle spectrum resource request, and initiates a free spectrum resource allocation request to the home database; the database coordinates the allocation of the subordinate according to the idle spectrum resource allocation request. The center controls the idle spectrum resources between the nodes.

The method for the database to coordinately allocate idle spectrum resources is:

The database coordinates the current idle spectrum resources according to the spectrum etiquette information, the load status within the coverage of each central control node, and the communication quality status information.

The process of performing coordinated allocation on the current idle spectrum resource includes:

Allocating currently available idle spectrum resources to a central control node that initiates an idle spectrum resource allocation request; or, when no free spectrum resources are available, allocating idle spectrum resources occupied by other central control nodes by coordinating with other central control nodes A central control node that initiates a request for a free spectrum resource allocation.

The method further includes: the central control node responding to the database to complete coordinated allocation of the idle spectrum resources, including:

The central control node that changes the spectrum resource completes the reconfiguration of the subordinate base station resources according to the command of the database, and sends a database update request to the database.

The central control node that changes the spectrum resource includes: a central control node that initiates an idle spectrum resource allocation request and obtains an idle spectrum resource, and/or allocates a part of the occupied idle resource spectrum to other central control nodes by coordinated allocation. Central control node.

When the reconfiguration of the subordinate base station resources is completed according to the command of the database, the overlapping coverage area between the central control nodes is further negotiated with the corresponding central control node, and then the resource allocation of the subordinate base stations is performed. The idle spectrum resource refers to a spectrum resource that is not used by the primary system.

A database includes: primary system spectrum resource usage information, central control node usage information of idle spectrum resources, central control node system information, spectrum etiquette information;

The database is responsible for the coordinated allocation of idle spectrum resources between the central control nodes.

The spectrum usage information of the primary system includes: information about a spectrum resource being used, information of an idle spectrum resource, and information of a spectrum resource that is not allowed to be used.

The information about the idle spectrum resource includes at least: a frequency point, a working bandwidth, a coverage range, a possible duration of the idle state, and a maximum allowed transmit power.

The usage information of the central control node for the idle spectrum resource includes: an idle spectrum resource used by the central control node, and a location of the central control node.

The central control node system information includes: load status information, communication quality information, and usage statistical rule information.

The spectrum etiquette information includes: a central control node priority, an interference avoidance strategy, and a spectrum lease rule.

A central control node is a function or a physical entity based on a system or an operator, and includes: information about idle spectrum resource usage information, load information, and communication quality status information of the base station of the central control node;

The central control node is configured to complete the idle spectrum resource reconfiguration.

When the central control node completes the reconfiguration of the idle spectrum resource, it is used to: coordinate the idle spectrum resource with the database interaction; exchange the idle spectrum resource usage information with other central control nodes to avoid interference; according to the database and other The interaction result of the central control node sends a corresponding measurement configuration message to the subordinate base station, and controls the subordinate base station to complete the idle spectrum resource reconfiguration.

A wireless link configuration system includes:

An application sending unit, configured to send a base station idle spectrum resource application; a summary reporting unit, configured to summarize the application for the idle spectrum resource of the base station, and report the summary result;

And a coordination allocation unit, configured to coordinate the allocation of idle spectrum resources between the central control nodes according to the summary result.

The coordinated allocation unit is configured to coordinate the allocation of the current idle spectrum resources for each central control node according to the load status, the communication quality status, and the spectrum etiquette within the coverage of the central control node.

The system further includes an allocation response unit, configured to respond to the coordinated allocation unit to complete coordinated allocation of idle spectrum resources:

The resource reconfiguration of the subordinate base station of the central control node whose idle spectrum resource changes is completed according to the command of the database, and a database update request is sent to the database.

Through the invention, the DB uniformly allocates the spectrum resources of the main system WS according to the load status, the communication quality status, and the spectrum etiquette in the coverage of each central control node (CCP); further, each CCP controls it. The in-range base station (BS) coordinates the allocation of the acquired WS spectrum resources. The benefits obtained are: Solving the problem of interference between secondary systems when multiple secondary systems or multiple operators compete for primary system resources; and ensuring that each secondary system or operator accesses the idle spectrum of the primary system. Fairness; It solves the interference problem that may occur between the sub-systems or the base stations in the operators; It ensures the fairness of access between the base stations. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart of a method according to an embodiment of the present invention;

2 is a schematic diagram of an application scenario of an embodiment of the present invention;

3 is a flowchart of a radio link configuration according to an embodiment of the present invention;

4 is a signaling flowchart of a radio link configuration according to an embodiment of the present invention;

FIG. 5 is a flowchart of a DB triggering CCP performing WS spectrum resource reconfiguration according to an embodiment of the present invention; FIG. 6 is a system module diagram of a radio link configuration according to an embodiment of the present invention. detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

According to an embodiment of the present invention, a wireless link configuration method is provided. As shown in FIG. 1, the method includes:

S10: The base station sends an idle spectrum resource request to the home CCP, and the CCP summarizes the received idle spectrum resource application, and initiates a idle spectrum resource allocation request to the home DB.

S11: The DB coordinates the allocation of idle spectrum resources between the subordinate CCPs according to the received idle spectrum resource allocation request;

S12: The CCP responds to the DB to complete the coordinated allocation of the idle spectrum resources.

Through the above operations, the problem of interference between secondary systems that may occur when multiple secondary systems or multiple operators compete for primary system resources is solved; at the same time, the fairness of each secondary system or operator to access the idle spectrum of the primary system is guaranteed. It solves the interference problem that may occur between the sub-systems or the base stations in the operator; it ensures the fairness of access between the base stations.

Step S11 can be implemented as follows. The DB performs coordinated allocation on the current idle spectrum resource according to the spectrum etiquette information, the load status and the communication quality status information in each CCP coverage.

In step S11, the step of performing coordinated allocation on the current idle spectrum resource includes: allocating the currently available idle spectrum resource to the CCP that initiates the idle spectrum resource allocation request; or, when no idle spectrum resource is available, by coordinating with other CCPs, The idle spectrum resources occupied by other CCPs are allocated to the CCPs that initiate the idle spectrum resource allocation request.

Step S12 can be implemented as follows: The CCP whose spectrum resource changes, completes the reconfiguration of the subordinate base station resources according to the DB command, and sends a DB update request to the DB.

In step S12, the CCP whose spectrum resource changes includes: a CCP that initiates an idle spectrum resource allocation request and obtains a free spectrum resource, and/or a part of the idle occupied by coordinated allocation. The resource spectrum is allocated to the CCPs of other CCPs.

In step S12, when the reconfiguration of the subordinate base station resources is completed according to the DB command, the area of the overlapping coverage between the CCPs must be negotiated with the corresponding CCP before the resource allocation of the subordinate base stations. An idle spectrum resource refers to a spectrum resource that is not used by the primary system.

An application scenario corresponding to the invention is shown in Figure 2. The main network elements involved are DB and CCP. The DB includes: primary system spectrum resource usage information, CCP usage information of idle spectrum resources, CCP system information, spectrum etiquette information; DB is responsible for coordinated allocation of idle spectrum resources between CCPs.

The primary system spectrum usage information includes: information of the spectrum resource being used, information of the idle spectrum resource, and information of the spectrum resource that is not allowed to be used.

The idle spectrum resource information includes at least: frequency, working bandwidth, coverage, idle state, possible duration, and maximum transmit power allowed.

The information about the use of idle spectrum resources by the CCP includes: the idle spectrum resources used by the CCP, and the location of the CCP.

The system information of the CCP includes: load status information, communication quality information, and usage statistics. Specifically, the DB may be provided by the main system operator or a third party, and the DB includes the primary system spectrum resource usage information locally or in several local areas; The CCP uses information about the idle spectrum resources of the primary system; and the CCP system information, including at least: load information within the CCP coverage, communication quality status information, and usage statistical law information; and the DB also stores spectrum etiquette information, including at least: CCP Priority, interference avoidance strategy, spectrum lease rules. The main system spectrum status information includes: spectrum resource information being used, including but not limited to: frequency, bandwidth, possible duration, coverage and isolation band; unused spectrum resource information, including but not limited to: frequency Point, working bandwidth, coverage, possible duration, maximum transmit power allowed, etc.; spectrum not allowed (may be administrative domain restricted spectrum or operator reserved) Spectrum, etc.) Resource information, including but not limited to: frequency, working bandwidth, etc. The usage information of each CCP on the idle spectrum of the primary system includes: the idle spectrum used by it, and the location of the CCP. The DB is responsible for allocating the main system idle spectrum to each CCP according to the stored spectrum etiquette.

The CCP is a function or physical entity based on the system or operator, including: CCP subordinate base station idle spectrum resource usage information, load information and communication quality status information; CCP completes idle spectrum resource reconfiguration.

The CCP completes the idle spectrum resource reconfiguration step, including: the CCP interacts with the DB to coordinate the idle spectrum resource; the CCP exchanges the idle spectrum resource usage information with other CCPs to avoid interference; the CCP sends the corresponding measurement configuration message to the subordinate according to the interaction result with the DB and other CCPs. The base station controls the subordinate base station to complete the reconfiguration of the idle spectrum resources.

Specifically, the CCP indicates a CCP of a system or an operator, and may be a fixed connection with the DB; at least includes the following functions: 1. Converging WS spectrum resource requests from each BS, and issuing a WS resource allocation request to the DB; Include the spectrum resource usage information of each subordinate BS, and coordinate the acquired WS spectrum resources to the subordinate BS; 3. Receive the reconfiguration command from the DB, and control the subordinate BS to perform corresponding reconfiguration; 4. Feedback configuration update message to the DB And including the reconfiguration information update after the WS resource is obtained, and the configuration update after exiting the WS; 5. sending the sensing measurement configuration message to the BS, including the same-frequency or adjacent-frequency system information of the allocated idle spectrum, the sensing measurement threshold, and the like; 6. Feedback perception measurement results to DB.

The BS may be directly connected to the CCP, and its functions include but are not limited to: 1. Allocating the obtained WS spectrum resources to the connected wireless links; 2. Changing or adjusting parameters of the wireless communication technology, for example, modulation type, transmission power; 3. Manage and maintain the working spectrum, for example, working frequency and frequency band; 4. Responsible for communication with CCP; 5. Spectrum sensing measurement function; 6. Perceptual measurement data processing capability.

Embodiment 1

FIG. 3 is a flowchart of a method for configuring a wireless link according to an embodiment of the present invention, and the specific steps are as follows: Step 1: The BS sends a WS spectrum resource request to the CCP, and after receiving the WS resource application message sent by the subordinate BS, the CCP sends a WS resource request to the DB.

The reason for triggering the WS spectrum resource application may be that the communication quality of the downlink link of the BS cannot meet the QoS requirement, or the load is too heavy.

Step 2: According to the load status information, communication quality status information, and spectrum etiquette in the coverage of each CCP, the DB makes coordinated decisions on the allocation of CCP resources to the main system WS spectrum resources;

The coordinated allocation includes: allocating WS spectrum resources to the CCP that issued the application, and instructing the currently under-loaded CCP to re-allocate to release the currently occupied WS spectrum resources.

Step 3: If the coordinated allocation decision involves the CCP releasing the occupied WS spectrum resources by reconfiguration, the DB issues a reconfiguration command to the CCP;

Step 4: The CCP performs reconfiguration according to the reconfiguration command of the DB, and the specific steps are described in the second embodiment;

Step 5: After the reconfiguration is completed, the CCP sends a DB update request to the DB, and the DB replies with an update confirmation message;

Step 6: The DB sends a WS resource request response to the CCP that sends the WS spectrum resource request, where the WS spectrum resource information allocated to the CCP is included;

WS spectrum resource information includes but is not limited to: frequency point, working bandwidth, and transmission parameter requirements (such as the maximum allowed transmit power, etc.).

Step 7: The CCP performs coordinated allocation of WS spectrum resources between BSs;

Similar to the DB in step 2, the CCP spectrum resource coordination allocation is similar. The CCP allocates the WS spectrum resources obtained from the DB to each base station according to the load status information and communication quality status information of each BS.

It is worth noting that: In the area covered by the CCP independently, the CCP can independently perform WS coordinated allocation to the subordinate BSs; the overlapping coverage area between the CCPs may cause interference to the relevant CCPs due to the coordinated allocation of the CCPs to the BSs. For areas covered by overlapping CCPs, the CCP shall According to the information provided by the DB, negotiate with the relevant CCP, and then perform resource allocation or reconfiguration control on the subordinate BS.

Step 8: The CCP sends the allocation result to the BS that issued the WS resource application, and the BS in which the related WS resource changes;

Step 9: The BS cooperates with the user to perform perceptual measurement on the allocated WS spectrum resources, and reports the measurement results to the CCP and DB for learning the environmental information;

The sensing measurement result at least includes: whether the acquired WS spectrum resource satisfies its communication requirement, and when not satisfied, further includes interference source information. The interference source of WS may be adjacent channel interference in the same area or co-channel interference in the adjacent CCP area. The BS feeds back the sensible measurement result to the upper node (DB or CCP) for learning, and formulates a corresponding spectrum allocation strategy, such as reallocating the WS resource to the BS, or adjusting the interference original transmission parameter to meet the The work requirements of the BS do not change the original allocated spectrum.

Step 10: The BS that performs the change of the working spectrum performs reconfiguration;

These include BSs that acquire WS spectrum resources and BSs that release WS spectrum resources through coordinated allocation.

Step 11: The BS that configures the change sends a BS configuration update message to the CCP, and the CCP returns the BS configuration update confirmation information.

Step 12: The CCP sends a DB update request, and the DB replies with a DB update confirmation message.

Embodiment 2

FIG. 4 is another signaling flowchart of a radio link configuration according to an embodiment of the present invention, and the specific steps are as follows:

Step 1: The BS is triggered to send a WS spectrum resource request to the CCP. After receiving the WS resource application message sent by the subordinate BS, the CCP sends a WS resource request to the DB.

The reason for triggering the WS spectrum resource application may be that the communication quality of the downlink link of the BS cannot meet the quality of service (QoS) requirement, or the load is too heavy. Step 2: According to the load status information, communication quality status information, and spectrum etiquette in the coverage of each CCP, the DB makes a coordinated allocation decision among the CCPs for the main system WS spectrum resources;

In this embodiment, the DB allocates multiple WS spectrum resources to the requesting CCP for selection.

Step 3: The DB sends a WS resource request response to the CCP that sends the WS spectrum resource request, where the WS spectrum resource information allocated to the CCP is included;

WS spectrum resource information includes but is not limited to: frequency point, working bandwidth, and transmission parameter requirements (such as the maximum allowed transmit power, etc.). The allocation response also includes measurement configuration information, which specifically includes the same-frequency or adjacent-frequency system information, measurement threshold, and the like of the allocated WS spectrum.

Step 4: The CCP first selects one of the multiple WS resources allocated by the DB, and coordinates it to the BS that issues the resource request;

It is worth noting that: In the area covered by the CCP independently, the CCP can independently perform WS coordinated allocation to the subordinate BSs; the overlapping coverage area between the CCPs may cause interference to the relevant CCPs due to the coordinated allocation of the CCPs to the BSs. In areas where the CCP overlaps, the CCP shall negotiate with the relevant CCP according to the information provided by the DB, and then perform resource allocation or reconfiguration control on the subordinate BS.

Step 5: The BS joins the user to perform perceptual measurement on the allocated WS spectrum resources, and reports the measurement results to the CCP and DB for learning the environmental information;

The sensing measurement result at least includes: whether the acquired WS spectrum resource meets its communication requirement, and when not satisfied, further includes interference source information. The interference source of WS may be adjacent channel interference in the same area, or co-channel interference in the adjacent CCP area. The BS feeds back the sensible measurement results to the CCP for learning. When the perceptual measurement results can determine the interference source, the CCP reports the perceptual measurement results to the DB for learning, and formulates corresponding spectrum allocation strategies, such as CCP re-selecting the DB. The WS resource allocated to it and allocated to the BS, the BS will re-execute the sensing measurement step; or the DB adjusts the interference original transmission parameter to meet the working requirements of the BS, And continue to allocate the WS resource to the BS.

Step 6: The BS that performs the change of the working spectrum performs reconfiguration;

Step 7: The BS that configures the change sends a BS configuration update message to the CCP, and the CCP replies to the BS configuration update confirmation message;

Step 8: The CCP sends a DB update request and the DB replies with a DB update confirmation message.

Embodiment 3

FIG. 5 is a signaling flow of a DB triggering CCP for performing WS spectrum resource reconfiguration according to an embodiment of the present invention, and the specific steps are as follows:

Step 1: DB to do WS resources Coordinated allocation between CCPs;

The reason for the coordinated allocation may be the WS resource reconfiguration of the relevant CCP triggered by the DB when the CCP issues the WS spectrum resource application described in Embodiment 1; or the DB performs overall performance optimization, the command load is lighter or the communication quality status is better. A good CCP releases some of the WS resources.

Step 2: The DB sends a WS reconfiguration command to the relevant CCP;

Step 3: According to the reconfiguration command of the DB, the CCP performs WS spectrum resource coordination decision. If the WS spectrum resource specified by the DB is occupied by a BS with light load or good communication quality, steps 4, 5, and 6 can be used. Directly specify the release of the WS spectrum and skip steps 7, 8, and 9;

If the WS spectrum resource specified by the DB is occupied by a BS with heavy load or poor communication quality, the WS spectrum cannot be directly released at this time, and the following steps are performed;

Step 4: The CCP sends a reconfiguration command to the lightly loaded BS.

Step 5: The lightly loaded BS performs reconfiguration and releases part of the WS spectrum resources;

Step 6: After completing the reconfiguration, the BS sends a BS configuration update message to the CCP, and the CCP replies to the BS configuration update confirmation message; Step 7: The CCP sends a reconfiguration command to the heavily loaded BS.

The reconfiguration command includes the WS spectrum information (ie, the WS resources released by steps 4, 5, and 6) to be switched on the link occupying the specified WS spectrum resource, including information such as frequency, working bandwidth, and transmission parameter requirements.

Step 8: The heavily loaded BS performs WS spectrum switching, and the occupied DB specifies the WS spectrum to be released.

Step 9: After completing the reconfiguration, the BS sends a BS configuration update message to the CCP, and the CCP replies to the BS configuration update confirmation message;

Step 10: The CCP sends a DB update request message to the DB. The DB replies to the DB update confirmation. It is necessary to note that when the CCP performs the WS resource coordination allocation policy, it involves changes in the WS resources used by the subordinate BS, and also considers not causing the adjacent CCP. Interference, WS resource allocation must be carried out after consultation with the relevant CCP.

According to an embodiment of the present invention, a wireless link configuration system is provided. As shown in FIG. 6, the system includes an application sending unit 2, a summary reporting unit 4, a coordinated allocation unit 6, and an allocation response unit 8;

The application sending unit 2 is configured to send the base station idle spectrum resource request to the CCP, and the summary reporting unit 4 is configured to summarize the received base station idle spectrum resource application, and report the summary result to the DB; the coordination allocation unit 6 is configured to The received summary result coordinates the allocation of the idle spectrum resources between the CCPs; the allocation response unit 8 is configured to respond to the coordinated allocation unit to complete the coordinated allocation of the idle spectrum resources.

The wireless link configuration system is further described below by way of an embodiment. First, when the communication quality of the subordinate link of the BS cannot meet the QoS requirement, or the load is too heavy, the application sending unit 2 sends a request for the idle spectrum resource of the base station to the CCP; secondly, the summary reporting unit 4 receives the resource application sent by the application sending unit 2, and Reporting the resource request to the coordination allocation unit 6; coordinating the allocation Unit 6 allocates currently available idle spectrum resources to the CCP initiating the idle spectrum resource allocation request according to the load status, communication quality status, and spectrum etiquette within the coverage of the CCP; or coordinates with other CCPs when no available idle spectrum resources are available Allocating the idle spectrum resources occupied by the other CCPs to the CCPs that initiate the idle spectrum resource allocation request, and transmitting the allocation result to the allocation response unit 8; the allocation response unit 8 changes the CCP of the idle spectrum resources according to the result of the coordinated allocation. The subordinate base station completes the resource reconfiguration and sends a DB update request to the DB.

Obviously, those skilled in the art should understand that the modules or steps of the present invention can be implemented by a general-purpose computing device, which can be centralized on a single computing device or distributed over a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be executed in a different order than herein. The steps shown or described are either made separately into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any particular combination of hardware and software.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

Claim

1. A method for configuring a wireless link, comprising:

2. The method of claim 1, wherein the method for the database to coordinate allocation of idle spectrum resources is:

3. The method according to claim 2, wherein the process of performing coordinated allocation on the current idle spectrum resource comprises:

The method of claim 1, wherein the method further comprises: the central control node responding to the database to complete the coordinated allocation of the idle spectrum resources, including:

5. The method according to claim 4, wherein the central control node in which the spectrum resource changes comprises: a central control node that initiates an idle spectrum resource allocation request and obtains an idle spectrum resource, and/or a part of which is occupied by coordinated allocation. The allocated idle resource spectrum is allocated to the central control nodes of other central control nodes.

6. The method of claim 4, wherein the subordinates are completed according to a command of the database When the base station resources are reconfigured, the overlapping coverage areas between the central control nodes are further negotiated with the corresponding central control nodes before resource allocation of the subordinate base stations.

The method according to any one of claims 1 to 6, wherein the idle spectrum resource refers to a spectrum resource that is not used by the primary system.

8. A database comprising: primary system spectrum resource usage information, central control node usage information of idle spectrum resources, central control node system information, spectrum etiquette information;

9. The database according to claim 8, wherein the primary system spectrum usage information comprises: information of a spectrum resource being used, information of an idle spectrum resource, and information of a spectrum resource that is not allowed to be used.

10. The database of claim 9, wherein the information of the idle spectrum resource comprises at least: a frequency point, an operating bandwidth, a coverage range, a duration of an idle state, and a maximum allowed transmit power.

The database of claim 8, wherein the usage information of the central control node for the idle spectrum resource comprises: an idle spectrum resource used by the central control node, and a location of the central control node.

The database according to claim 8, wherein the central control node system information comprises: load status information, communication quality information, and usage statistical rule information.

13. The database according to claim 8, wherein the spectrum etiquette information comprises: a center control node priority, an interference avoidance strategy, and a spectrum lease rule.

A central control node, which is a function or a physical entity based on a system or an operator, and includes: information about idle spectrum resource usage information, load information, and communication quality status information of the base station of the central control node;

15. The central control node according to claim 14, wherein the central control node is finished When the idle spectrum resource is reconfigured, it is used to:

Interacting with the database to coordinate idle spectrum resources; interacting with other central control nodes for idle spectrum resource usage information to avoid interference; transmitting corresponding measurement configuration messages to subordinate base stations according to interaction results with the database and other central control nodes, and controlling the subordinates The base station completes the reconfiguration of the idle spectrum resources.

16. A wireless link configuration system, comprising:

An application sending unit, configured to send a base station idle spectrum resource application;

a summary reporting unit, configured to summarize the application for the idle spectrum resource of the base station, and report the summary result;

The system according to claim 16, wherein the coordinated allocation unit is configured to coordinate allocation of current idle spectrum resources for each central control node according to load status, communication quality status, and spectrum etiquette within the coverage of the central control node. .

The system according to claim 16 or 17, wherein the system further comprises an allocation response unit for responding to the coordination allocation unit to complete the coordinated allocation of the idle spectrum resources: