WO2013029416A1 - Radio resource reallocation triggering method and device - Google Patents

Abstract

Disclosed is a radio resource reallocation triggering method, comprising: obtaining a frequency spectrum resource reallocation triggering message; and triggering the frequency spectrum resource reallocation according to the frequency spectrum resource reallocation triggering message. Also disclosed is a radio resource reallocation triggering device. The technical solution of the present invention can accurately trigger the frequency spectrum resource reallocation according to the frequency spectrum resource reallocation triggering message.

Description

 Method and device for triggering radio resource reconfiguration

 The present invention relates to wireless communication and cognitive radio technologies, and more particularly to a method and apparatus for triggering radio resource reconfiguration. Background technique

 With the rapid development of wireless communication technologies and the enrichment of wireless communication services, the demand for wireless communication services and wireless communication devices has increased dramatically, resulting in a shortage of limited spectrum resources. On the other hand, in the traditional fixed spectrum allocation mode, although the interference between the wireless communication systems is avoided, the users in the congestion band cannot access the idle frequency band granted to other systems, resulting in waste of spectrum resources and reduced. Spectrum resource utilization. In order to overcome the scarcity of spectrum resources, more efficient use of wireless spectrum resources, the concept of cognitive radio (CR, Cognitive Radio), cognitive communication wireless communication devices (cognitive users) can follow some kind of "opportunistic "The way to use other system licensed bands (primary user spectrum), of course, this must be established in the case that the licensed band is idle or the licensed band is only a small number of services are communicating, greatly improving the utilization of spectrum resources, and solving the increasingly The contradiction between the growing demand for wireless communication services and the diminishing spectrum resources.

 The application scenario of TVWS (TVWS) in CR mainly includes the base station providing Internet access to the user terminal on the TVWS, the coverage is equivalent to the current cell; the access point or the base station is wirelessly short-distance Communication, providing Internet access to user terminals on TVWS; Ad-hoc network uses TVWS to satisfy mutual communication and sharing information of user terminals; Backhaul link uses TVWS for communication, wherein backhaul link refers to communication between relay station and base station Communication link.

For the application of TVWS in CR, FIG. 1 is an architecture of radio resource reconfiguration in the prior art. Schematic diagram, as shown in Figure 1, the main network elements involved are: database (DB, Data Base), central control node (CCP, Central Control Point), base station, relay station, etc.; the database contains TVWS spectrum usage information, that is, the main TVWS spectrum usage information of the user spectrum and TVWS spectrum usage information of the cognitive user; the central control node is used to manage the access of its subordinate nodes to the TVWS, coordinate the allocation of the TVWS spectrum in its subordinate nodes, and the central control node is fixedly connected with the database, To obtain TVWS spectrum usage information, and to be fixed or wirelessly connected to the base station; the base station is a base station with reconfiguration and cognitive functions, which can change or adjust parameters of the wireless communication technology (such as modulation type, transmission power, etc.), management and maintenance work. Spectrum (such as working frequency and bandwidth), with spectrum cognitive function and cognitive data processing capability; relay station has cognitive ability.

 In the current research, different radio resource reconfiguration methods are adopted for different scenarios. For example, when a certain base station has insufficient spectrum resources, the base station usually applies for spectrum resources to the central control node, and the central control node allocates a new primary system for its idleness. The spectrum resource, or the central control node coordinates the base station with its lighter load to exit the idle spectrum resource of the occupied main system, and provides the base station for applying for the spectrum resource. For example, when the primary user needs to re-occupy a certain spectrum resource, the base station of the cognitive system using the spectrum resource must exit the spectrum resource to avoid interference to the primary user, and the central control node can allocate the idle of the new primary system to the base station. The spectrum resource can also allow the terminal under the base station to use the spectrum resource to switch to other licensed spectrum to implement radio resource reconfiguration. For different reconfiguration reasons, the purpose of radio resource reconfiguration is different. Therefore, it is necessary to give a clear method for triggering the reconfiguration of radio resources. Otherwise, it will affect the formulation of reconfiguration decisions and make the reconfiguration decision inaccurate. Summary of the invention

 In view of this, the main object of the present invention is to provide a method and apparatus for triggering radio resource reconfiguration, which can accurately trigger spectrum resource reconfiguration according to spectrum resource reconfiguration trigger information.

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

The present invention provides a method for triggering reconfiguration of radio resources, including: Obtaining spectrum resource reconfiguration trigger information, and triggering spectrum resource reconfiguration according to the spectrum resource reconfiguration trigger information.

 In the above method,

 Acquiring the spectrum resource reconfiguration trigger information, and triggering the spectrum resource reconfiguration according to the spectrum resource reconfiguration trigger information to be performed by the reconfiguration device;

 The reconfiguration device is an entity having a spectrum resource reconfiguration function;

 The spectrum resource reconfiguration trigger information includes: primary user information, and/or spectrum resource request information, and/or adjacent reconfiguration device resource reconfiguration status information.

 In the above method,

 The primary user information includes: primary user presence information, and/or supervisory domain command information, and/or primary user interfered information;

 The spectrum resource request information includes: a current load condition and/or a communication quality status of a base station that issues a spectrum resource request, and further includes a working frequency band supported by a subordinate node of the reconfiguration device, and/or a supported bandwidth, and/or a borrowed spectrum resource. The time of initial use, and/or the length of time that the spectrum resource is borrowed, and/or the preferred frequency band, and/or the tolerable upper interference limit, and/or the reason for the request; the adjacent reconfiguration device resource reconfiguration status The information includes: the location of the resource reconfigured cell and the resource distribution of the related cell after reconfiguration, or the location of the resource reconfigured cell and the transmission parameter of the related cell after reconfiguration, or the location of the resource reconfigured cell, after reconfiguration The resource distribution of the relevant cell and the transmission parameters of the relevant cell after reconfiguration.

 In the above method, the acquiring the primary user information is: the reconfiguration device acquires the primary user information on the primary system spectrum resource occupied by the subordinate node from the database.

 In the above method,

The main user appearance information and/or the main user interference information in the acquisition main user information is: the reconfiguration device acquires the main user appearance information on the main system spectrum resource occupied by the subordinate node from the perceptual measurement result of the subordinate node and/ Or the primary user is disturbed by the information; or, the reconfiguration device receives the received The spectrum resource request message sent by the subordinate node acquires the main user appearance information and/or the main user interference information on the main system spectrum resource occupied by the subordinate node; or, the reconfiguration device acquires the subordinate node from the perceptual measurement result of the subordinate node After the primary user on the spectrum resource of the occupied main system appears to have information and/or the primary user is interfered with the information, the obtained primary user appearance information and/or the primary user interference information are confirmed to the database;

 And/or, the primary user appearance information in the acquiring primary user information is: a database stored before the reconfiguration is notified to the primary user of the reconfiguration device to appear information.

 In the above method, the acquiring the spectrum resource request information is: the base station actively sends the spectrum resource request information to the reconfiguration device, or the relay station triggers the base station to send the spectrum resource request information to the reconfiguration device.

 In the above method, the reconfiguration device acquires resource reconfiguration status information of the adjacent reconfiguration device as follows: The reconfiguration device acquires resource reconfiguration status information of the adjacent reconfiguration device by performing information interaction with the adjacent reconfiguration device.

 In the above method, the triggering the spectrum resource reconfiguration according to the spectrum resource reconfiguration trigger information is:

 If the spectrum resource reconfiguration trigger information is primary user information, the reconfiguration device determines whether the primary user is present, and/or whether the primary user is interfered, and/or whether there is regulatory domain command information, if the primary user appears, and/or the primary user When at least one of the interfered, and/or supervisory domain command information is established, the spectrum resource reconfiguration is triggered; otherwise, the spectrum resource reconfiguration is not triggered.

 In the above method, the triggering the spectrum resource reconfiguration according to the spectrum resource reconfiguration trigger information is:

 If the spectrum resource reconfiguration trigger information is the spectrum resource request information, the reconfiguration device determines whether the current load status of the base station that sends the spectrum resource request information exceeds a preset load threshold. If it exceeds, the spectrum resource reconfiguration is triggered. Otherwise, the spectrum is not triggered. Resource reconfiguration;

And/or, the reconfiguration device determines that the communication quality status of the base station that sent the spectrum resource request information is If the preset communication quality threshold is exceeded, if it exceeds, the spectrum resource reconfiguration is triggered. Otherwise, the spectrum resource reconfiguration is not triggered.

 In the above method, the triggering the spectrum resource reconfiguration according to the spectrum resource reconfiguration trigger information is:

 If the spectrum resource reconfiguration trigger information is the adjacent reconfiguration device resource reconfiguration status information, the reconfiguration device determines whether the overlapping area or the adjacent area of the adjacent reconfiguration device is based on the reconfiguration status information of the adjacent reconfiguration device. There is interference, if it exists, triggering spectrum resource reconfiguration, otherwise, spectrum resource reconfiguration is not triggered.

 In the above method, the triggering the spectrum resource reconfiguration according to the spectrum resource reconfiguration trigger information is:

 If the spectrum resource reconfiguration trigger information includes multiple information in the primary user information, the spectrum resource request information, and the adjacent reconfiguration device resource reconfiguration status information, the reconfiguration device determines each of the acquired information one by one, as long as there is one If the condition is met, the spectrum resource reconfiguration is triggered. Otherwise, the spectrum resource reconfiguration is not triggered.

 The present invention provides an apparatus for triggering reconfiguration of a radio resource, including: an acquisition module, a reconfiguration trigger module;

 An acquiring module, configured to acquire spectrum resource reconfiguration trigger information;

 And a re-matching triggering module, configured to trigger a spectrum resource reconfiguration according to the spectrum resource reconfiguration trigger information acquired by the acquiring module.

 In the above device,

 The device is a reassortment device;

 The reconfiguration device is an entity having a spectrum resource reconfiguration function;

 The spectrum resource reconfiguration trigger information includes: primary user information, and/or spectrum resource request information, and/or adjacent reconfiguration device resource reconfiguration status information.

The method and device for triggering radio resource reconfiguration provided by the present invention, obtaining spectrum resource re-matching Sending information, and triggering the re-allocation of the spectrum resource according to the re-distribution triggering information of the spectrum resource, and solving the problem that the method for triggering the re-allocation of the spectrum resource is unclear in the prior art, and the triggering information of the spectrum resource can be triggered to accurately trigger the spectrum resource. Matching, so as to avoid affecting the formulation of reconfiguration decisions and ensuring the accuracy of reconfiguration decisions. DRAWINGS

 1 is a schematic structural diagram of radio resource reconfiguration in the prior art;

 2 is a schematic flowchart of a method for triggering radio resource reconfiguration according to the present invention;

 FIG. 3 is a schematic flowchart of Embodiment 1 of a method for triggering re-allocation of radio resources according to the present invention; FIG. 4 is a schematic flowchart of Embodiment 2 of a method for triggering re-allocation of radio resources according to the present invention; FIG. FIG. 6 is a schematic flowchart of Embodiment 4 of a method for triggering radio resource reconfiguration according to the present invention; FIG. 7 is a schematic diagram of a method for implementing a method for triggering radio resource reconfiguration according to the present invention; FIG. 8 is a schematic flowchart of Embodiment 6 of a method for triggering re-allocation of radio resources according to the present invention; FIG. 9 is a schematic structural diagram of an apparatus for triggering re-allocation of radio resources according to the present invention. The basic idea of the present invention is: acquiring spectrum resource reconfiguration trigger information, and triggering spectrum resource reconfiguration according to the spectrum resource reconfiguration trigger information.

 The invention will be further described in detail below with reference to the drawings and specific embodiments.

 The present invention provides a method for triggering radio resource reconfiguration. FIG. 2 is a schematic flowchart of a method for triggering radio resource reconfiguration according to the present invention. As shown in FIG. 2, the method includes the following steps: Step 201: Acquire spectrum resource reconfiguration Trigger information;

Specifically, in the present invention, the reconfiguration device refers to an entity having a spectrum resource reconfiguration function, and may be, for example, a mobility management entity (MME, Mobility Management Entity) or a service gateway (S-GW, Serving Gateway) on the core network side. , packet data network gateway (P-GW, Packet The Data Network Gateway can also be an OAM (Operation Administration and Maintenance) entity or an Equipment Management System (EMS) or a Network Management System (NMS). Control node (CCP, Central Control Point) or network reconfiguration management entity (NRM, Network Reconfiguration Manager);

 The spectrum resource reconfiguration trigger information includes: primary user information, and/or spectrum resource request information, and/or adjacent reconfiguration device resource reconfiguration status information;

The primary user information includes primary user appearance information, and/or supervisory domain command information, and/or primary user interfered information; the primary user presence information refers to the primary user re-occupying the assigned to the cognitive user. The idle spectrum resource, including the primary user has been re-occupied or will be re-occupied, for example, has been occupied or will be occupied after one minute; the supervisory domain command information refers to the exit of the designated TVWS spectrum resource sent by the primary system operator to the cognitive system. The primary user interfered information refers to interference caused by the primary user when the cognitive user uses the idle spectrum resource of the primary user; the method for the reconfiguration device to acquire the primary user information is that the reconfiguration device obtains the data from the database. The primary user information on the primary system spectrum resource occupied by the subordinate node; wherein, the method for the reconfiguration device to obtain the primary user presence information and/or the primary user interference information in the primary user information may also be: The perceptual measurement result of the subordinate node acquires the presence information of the main user on the spectrum resource of the main system occupied by the subordinate node and/or The primary user is interfered with the information; or, the reconfiguration device obtains the primary user presence information and/or the primary user interference information on the primary system spectrum resource occupied by the subordinate node through the received spectrum resource request message sent by the subordinate node; or And the reconfiguration device obtains the primary user appearance information and/or the primary user interference information on the primary system spectrum resource occupied by the subordinate node from the sensing measurement result of the subordinate node, and then confirms the acquired primary user appearance information and the database to the database. The primary user is interfered with the information; the method for the primary user to obtain the information of the primary user in the primary user information may be: the database stored in the previous reconfiguration is notified to the primary user of the reconfiguration device; Subordinate nodes include, but are not limited to, base stations, relay stations, and the like; Here, the reconfiguration device obtains the primary user information on the primary system spectrum resource occupied by the subordinate node from the database, specifically: the reconfiguration device event triggers or periodically accesses the database to obtain the primary user information, or the database TVWS information changes, the database Actively notifying the primary user information of the reconfiguration device; the reconfiguration device acquires the primary user presence information and/or the primary user interference information in the primary user information on the primary system spectrum resource occupied by the subordinate node from the sensing measurement result of the subordinate node Specifically, the subordinate node acquires the main user appearance information and/or the main user interference information in the main user information of the occupied main system spectrum resource by using the individual perceptual measurement or the joint perceptual measurement, and then reporting the information to the reconfiguration device;

The spectrum resource request information includes: at least one of a current load condition and a communication quality status of the base station that sends the spectrum resource request, and optionally, the method further includes: a working frequency band supported by the subordinate node of the reconfiguration device, and/or The supported bandwidth, and/or the time at which the borrowed spectrum resource begins to be used, and/or the length of time the borrowed spectrum resource is used, and/or the preferred frequency band, and/or the tolerable interference ceiling, and/or the reason for the request; The reasons include: the base station is currently heavily loaded, and/or cannot guarantee the QoS requirements of the communication, and/or increase the capacity and data rate of the system; the method for the reconfiguration device to obtain the spectrum resource request information may be: the base station actively moves to the reconfiguration device Transmitting the spectrum resource request information, or the relay station triggers the base station to send the spectrum resource request information to the reconfiguration device; where the neighbor reconfiguration device resource reconfiguration status information includes: the location of the resource reconfiguration cell and the related cell after reconfiguration Resource allocation, or the location of the resource re-allocated cell and the transmission parameters of the relevant cell after reconfiguration, The location of the resource reconfigured cell, the resource distribution of the related cell after reconfiguration, and the transmission parameters of the related cell after reconfiguration; the transmission parameters of the relevant cell after reconfiguration may be the maximum transmit power, the antenna pattern, etc.; The device resource reconfiguration status information is obtained by the reconfiguration device by performing information exchange with the adjacent reconfiguration device, and specifically, when the adjacent reconfiguration device performs the spectrum resource reconfiguration, the active reconfiguration device is actively sent to the reconfiguration device. The status information, or the reconfiguration device, actively requests to obtain resource reconfiguration status information of the adjacent reconfiguration device in the overlapping area or the adjacent area. Step 202: Trigger the spectrum resource reconfiguration according to the obtained spectrum resource reconfiguration trigger information. Specifically, if the spectrum resource reconfiguration trigger information acquired by the reconfiguration device is the primary user information, the reconfiguration device determines whether the primary user appears, and/or Whether the primary user is interfered with, and/or has supervisory domain command information, if at least one of the primary user appears, and/or the primary user is interfered, and/or has supervisory domain command information, the reconfiguration device triggers the spectrum Resource reconfiguration; otherwise, the reconfiguration device does not trigger spectrum resource reconfiguration;

 If the spectrum resource reconfiguration trigger information acquired by the reconfiguration device is the spectrum resource request information, there are two methods for the reconfiguration device to determine whether to trigger the spectrum resource reconfiguration: one is that the reconfiguration device determines the current base station that sends the spectrum resource request information. Whether the load condition exceeds a preset load threshold, such as whether the radio resource utilization of the base station characterizing the current load condition exceeds 95%. If exceeded, the reconfiguration device triggers spectrum resource reconfiguration. Otherwise, the reconfiguration device does not trigger spectrum resource reconfiguration. The other is that the reconfiguration device determines whether the communication quality status of the base station that sends the spectrum resource request information exceeds a preset communication quality threshold, such as whether the error rate indicating the communication quality status exceeds 10%, and if exceeded, the reconfiguration device triggers The spectrum resource is reconfigured. Otherwise, the reconfiguration device does not trigger the spectrum resource reconfiguration. If the spectrum resource reconfiguration trigger information acquired by the reconfiguration device is the reconfiguration device resource reconfiguration status information, the reconfiguration device is based on the adjacent reconfiguration device. Resource reconfiguration status information, judging the overlap area or phase of itself with the adjacent reconfiguration device Regional whether there is interference, if present, triggering device reconfiguration reconfiguration of spectrum resources, otherwise, the device does not trigger a reconfiguration reconfiguration of spectrum resources;

If the spectrum resource reconfiguration trigger information acquired by the reconfiguration device includes multiple information in the primary user information, the spectrum resource request information, and the adjacent reconfiguration device resource reconfiguration status information, the reconfiguration device respectively obtains each information obtained as described above. The mode is judged one by one, and the reconfiguration device triggers the spectrum resource reconfiguration if only one condition is satisfied; otherwise, the reconfiguration device does not trigger the spectrum resource reconfiguration; in addition, if there are multiple conditions, the reconfiguration device performs the spectrum resource heavy When the timing is matched, the spectrum resource reconfiguration triggered by the primary user information is prioritized, followed by the spectrum resource reconfiguration triggered by the spectrum resource request information, and finally the spectrum resource reconfiguration triggered by the resource reconfiguration status information of the adjacent reconfiguration device. The following embodiment is described by taking the reconfiguration device as a CCP as an example, and the case where the reconfiguration device is another network element is similar.

 Embodiment 1

 FIG. 3 is a schematic flowchart of Embodiment 1 of a method for triggering radio resource reconfiguration according to the present invention, which is a specific implementation method for triggering spectrum resource reconfiguration by a primary user, as shown in FIG. 3, the method includes the following steps:

 Step 301: The CCP obtains information about the presence of the primary user.

 Specifically, the CCP obtains the information of the primary user, and the CCP finds that the primary user appears in the following three ways:

 First, the CCP obtains the information of the primary user from the database, that is, the CCP event triggers or periodically accesses the database, obtains the TVWS information, or when the TVWS information in the database changes, the database actively notifies the CCP; wherein the TVWS information includes the CCP subordinate node The time of occurrence of the primary user on the occupied primary system spectrum resource, or the idle time of the primary system spectrum resource occupied by the CCP subordinate node;

Second, the subordinate base station, the relay station, and the like of the CCP sense the TVWS spectrum to discover the primary user, report the sensing measurement result to the CCP, or send only the primary user appearance information in the sensing measurement result to the CCP through the spectrum resource request message; There are two ways for the TVWS spectrum: The first way is that before the CCP's subordinate base stations, relay stations, etc., perceive the TVWS spectrum, the CCP performs the perceptual measurement configuration on the subordinate base stations, and the subordinate base stations perform the perceptual measurement configuration on the subordinate relay stations, the base station and the relay station. The sensing measurement is performed according to the perceptual measurement configuration, and the base station and the relay station may be the individual sensing or the joint sensing. The perceptual measurement configuration includes the frequency of the TVWS spectrum that needs to be perceptually measured, the bandwidth, and the manner in which the sensing measurement result is reported. The manner of reporting may be periodic or event triggering; the method of sensing measurement may be to detect whether the signal power of the primary user exceeds a preset threshold, if it is exceeded, indicating that the primary user appears, otherwise, the primary user does not appear; or according to the monitored Main user signal characteristics Turn main user is present, such as a pilot signal Characteristic, if the pilot signal of the primary user is detected, it indicates that the primary user appears, otherwise, the primary user does not appear; the second method is that the CCP subordinate base station and the relay station perform sensing measurement on the full frequency band of the TVWS, in which the CCP does not need A configuration for performing sensing measurement on a subordinate base station or a relay station, or a configuration in which the CCP does not need to perform sensing measurement on the subordinate base station, and the base station does not need to perform sensing measurement on the relay station; in addition, in the manner of sensing the TVWS spectrum, the sensing measurement result is excluded. In addition to the presence information of the primary user, other sensing measurement information may be included, and the base station or the relay station only carries the primary user appearance information in the spectrum resource request message, and the spectrum resource is used to send the information of the primary user through the spectrum resource request message. The request message does not carry other sensory measurement information;

 Third, the CCP uses the time of the primary user of the database notification stored in the previous spectrum resource reconfiguration, or the primary system spectrum idle time of the database notification stored before the reconfiguration;

 The above three methods for discovering the primary users may work separately or in combination, for example, the first and second joint work, and the sensing measurement results trigger the CCP to access the database to confirm the sensing measurement results; For the three joint operations, the CCP uses the information stored in the previous spectrum resource reconfiguration to make a judgment, and then accesses the database to confirm the perceptual measurement results.

 Step 302: The CCP triggers the reconfiguration of the spectrum resource according to the obtained information about the primary user. Specifically, if the primary user information obtained by the CCP indicates that the primary user is present, the CCP needs to perform spectrum resource reconfiguration to withdraw the occupied primary user spectrum resource. In order to avoid interference to the primary user; otherwise, the CCP does not need to perform spectrum resource reconfiguration.

 Embodiment 2

 FIG. 4 is a schematic flowchart of Embodiment 2 of a method for triggering radio resource reconfiguration according to the present invention, which is a specific implementation method for triggering spectrum resource reconfiguration by the domain command information. As shown in FIG. 4, the method includes the following steps:

Step 401: The CCP obtains the supervision domain command information. Specifically, when the primary system operator temporarily plans to reserve TVWS spectrum resources for a specific service, or because the local system regulations restrict the cognitive system from using certain TVWS spectrum resources, the primary system operator sends an exit to the cognitive system. The command to specify the TVWS spectrum resource, that is, the supervision domain command; the way the CCP obtains the supervision domain command information includes the CCP event triggering or periodically accessing the database, obtaining the supervision domain command, or the database actively notifying the CCP when the information in the database changes.

 Step 402: The CCP triggers the reconfiguration of the spectrum resource according to the obtained supervision domain command information. Specifically, if the CCP obtains the supervision domain command information, it indicates that the CCP subordinate node (such as the base station and the relay station) occupies the TVWS spectrum specified by the main system operator. For resources, the CCP needs to perform spectrum resource reconfiguration to exit the TVWS spectrum resources specified by the main system operator; otherwise, the CCP does not need to perform spectrum resource reconfiguration.

 Embodiment 3

 FIG. 5 is a schematic flowchart of Embodiment 3 of a method for triggering radio resource reconfiguration according to the present invention, which is a specific implementation method for triggering frequency resource reconfiguration by a primary user by using interference information. As shown in FIG. 5, the method includes the following steps:

 Step 501: The CCP acquires interference information of the primary user.

Specifically, inaccurate database information, or changes in the environment, or CCP reconfiguration errors, may cause the CCP to interfere with the primary user after spectrum resource reconfiguration. In this case, the CCP needs to perform spectrum resource reconfiguration on the subordinate nodes. The reconfiguration method may be that the CCP subordinate node adjusts the transmission power, or allocates a new TVWS resource to the subordinate node of the main user causing the interference, and therefore needs to obtain the interference information of the main user, specifically including two acquisition methods: The database obtains the interference information of the primary user, for example, the CCP event triggers or periodically accesses the database to obtain the TVWS information; or when the TVWS information in the database changes, the database actively notifies the CCP; wherein, the TVWS information includes at least the interference status of the primary user and The upper limit of interference tolerated by the primary user; the other is the sensing of TVWS spectrum resources by the subordinate base stations, relay stations, etc. of the CCP to discover the master User's interference, and report the sensing measurement result to the CCP, or only the primary user interfered information in the sensing measurement result is sent to the CCP through the spectrum resource request message; wherein, the base station and the relay station can individually perceive or jointly sense, and the base station and the relay station discover The method of interference to the primary user is the signal strength of the base station and the relay station according to the edge of the coverage area of the primary system (this value is usually determined, such as

-lOOdBm) and the received main user signal strength (such as -120dBm), estimate its maximum coverage, and then determine whether its actual coverage exceeds the maximum coverage. If it is, it will cause interference to the primary user, and vice versa. It will cause interference to the primary user.

 Step 502: The CCP triggers the reconfiguration of the spectrum resource according to the obtained interference information of the primary user. Specifically, if the primary user received by the CCP indicates that the primary user is interfered, the CCP needs to perform spectrum resource reconfiguration; otherwise, the CCP does not. Spectrum resource reconfiguration is required.

 Embodiment 4

 FIG. 6 is a schematic flowchart of Embodiment 4 of a method for triggering radio resource reconfiguration according to the present invention, which is a specific implementation method for a base station to send a spectrum resource request information to trigger a spectrum resource reconfiguration. As shown in FIG. 6, the method includes the following steps:

 Step 601: The base station sends spectrum resource request information to the CCP.

 Specifically, the base station sends the spectrum resource request information to the CCP, where the spectrum resource request information includes: at least one of a current load status and a communication quality status of the base station that sends the spectrum resource request information, and optionally, the supported working frequency band. , and/or the supported bandwidth, and/or the time of use, and/or the length of time used, and/or the preferred frequency band, and/or the tolerable upper interference limit, and/or the reason for the request; here, The time used refers to the time when the base station is expected to start using the spectrum resource; the length of time used refers to how long the base station expects to use the spectrum resource; the reasons for the request include: the base station is currently heavily loaded, and/or cannot Ensure communication QoS requirements (such as low channel-to-noise ratio, severe interference, etc.), and/or increase system capacity and data rate.

Step 602: The CCP triggers resource reconfiguration according to the spectrum resource request information. Specifically, there are two methods for determining: one is that the CCP determines whether the current load of the base station that sends the spectrum resource request information exceeds a preset load threshold, such as whether the radio resource utilization rate of the base station that represents the current load condition exceeds 95%, if Exceeded, the CCP triggers the reconfiguration of the spectrum resources. Otherwise, the CCP does not trigger the reconfiguration of the spectrum resources. The other is whether the CCP determines whether the communication quality of the base station that sent the spectrum resource request information exceeds the preset communication quality threshold, such as characterization. Whether the error rate of the communication quality status exceeds 10%. If it exceeds, the CCP triggers the reconfiguration of the spectrum resources, otherwise the spectrum resource reconfiguration is not triggered.

 Embodiment 5

 7 is a schematic flowchart of Embodiment 5 of a method for triggering radio resource reconfiguration in the present invention, which is a specific implementation method for a relay station to trigger a base station to send spectrum resource request information to a CCP, and a CCP performs spectrum resource reconfiguration, as shown in FIG. The method includes the following steps:

 Step 701: The relay station triggers the base station to send spectrum resource request information to the CCP.

 Specifically, the relay station starts and reports its capability information to the base station, and the base station sends the spectrum resource request information to the CCP for the backhaul link between itself and the relay station; where the capability information reported by the relay station includes the maximum transmit power, the supported working frequency band, Capable interference ceiling, location information, access terminal capabilities, etc. The capabilities of the access terminal include: the version of the supported terminal, the total number of supported terminals, the number of terminals supported for different services, and the services that can be provided; The spectrum resource request information includes: a capability reported by the relay station, a load status of the backhaul link, a communication quality status of the backhaul link, and a reason for the request, wherein the reason for the request is that the relay station is turned on.

Step 702: The CCP triggers the reconfiguration of the spectrum resource according to the received spectrum resource request information. Specifically, the CCP determines whether to trigger the reconfiguration of the spectrum resource according to the received spectrum resource request information, and the method for determining the backhaul is as follows: Whether the load of the link exceeds a preset load threshold, such as whether the backhaul link radio resource utilization characterizing the current load condition exceeds 95%. If exceeded, the CCP triggers spectrum resource reconfiguration; otherwise, spectrum resource reconfiguration is not triggered; The other is that the CCP determines whether the communication quality status of the backhaul link exceeds a preset communication quality threshold, such as Whether the error rate of the communication quality status exceeds 10%. If it exceeds, the CCP triggers the spectrum resource reconfiguration, otherwise the spectrum resource reconfiguration is not triggered.

 Embodiment 6

 8 is a schematic flowchart of Embodiment 6 of a method for triggering radio resource reconfiguration according to the present invention, which is a specific implementation method for a CCP to perform spectrum resource reconfiguration triggering CCP to perform spectrum resource reconfiguration, as shown in FIG. Includes the following steps:

 Step 801: The CCP exchanges information with the neighboring CCP to obtain relocation status information of the adjacent CCP resource;

 Specifically, in practical applications, the areas covered by adjacent CCPs may overlap or cover adjacent areas. When a CCP performs spectrum resource reconfiguration in a certain area, the resources of neighboring CCPs may be triggered. There are two ways for the CCP to interact with neighboring CCPs: One is when the neighboring CCP performs spectrum resource reconfiguration, and sends resource reconfiguration status information to the CCP that may be affected by the spectrum resource reconfiguration. CCP and neighboring CCP Negotiate (such as CCP re-allocation of spectrum resources to interfered areas, or neighboring CCPs to redistribute spectrum resources) to avoid mutual interference; the other is if neighboring CCPs perform spectrum resource reconfiguration, Sending resource reconfiguration status information to the CCP, after the CCP receives the spectrum resource reconfiguration, if the CCP receives the interference information reported by its subordinate node (such as interference signal, interfered area, interfered frequency, bandwidth, etc.) The CCP actively requests the resource reconfiguration status information of the adjacent CCP in the overlapping area or the adjacent area; wherein, the neighboring CCP resource reconfiguration status information includes: The location of the source reconfigured cell and the resource distribution of the related cell after reconfiguration, or the location of the resource reconfigured cell and the transmission parameters of the relevant cell after reconfiguration, or the location of the resource reconfigured cell, and the relevant cell after reconfiguration The resource distribution and the transmission parameters of the relevant cell after reconfiguration (such as the maximum transmit power, antenna pattern); for example, the cell identifier of the resource reconfiguration is cellA, the spectrum resource used after reconfiguration is fl, and the maximum transmit power is 45 dBm.

Step 802: The CCP triggers spectrum resource reconfiguration according to the obtained neighboring CCP resource reconfiguration status information. Specifically, the CCP determines whether there is interference with the adjacent CCP overlapping area or the adjacent area according to the obtained neighboring CCP resource reconfiguration status information. If yes, the CCP triggers the spectrum resource reconfiguration. Otherwise, the CCP does not trigger the spectrum resource. Re-allocation; CCP judges whether there is interference between neighboring CCPs: CCP calculates neighboring CCP according to resource reconfiguration status information provided by neighboring CCPs, and resource distribution status and tolerable interference ceiling of its subordinate nodes. The interference strength of the subordinate reconfiguration node to its own subordinate node. If the interference strength exceeds the upper interference limit that the subordinate node can tolerate, there is interference between the CCP and the neighboring CCP, otherwise there is no interference.

 To achieve the above method, the present invention further provides a device for triggering reconfiguration of radio resources. FIG. 9 is a schematic structural diagram of an apparatus for triggering reconfiguration of radio resources according to the present invention. As shown in FIG. 9, the device includes: Block 91 and reconfiguration trigger module 92; wherein

 The obtaining module 91 is configured to acquire spectrum resource reconfiguration trigger information.

 The reconfiguration triggering module 92 is configured to trigger the spectrum resource reconfiguration according to the spectrum resource reconfiguration trigger information acquired by the acquiring module 91.

 The device is a reassortment device;

 The reconfiguration device is an entity having a spectrum resource reconfiguration function;

 The spectrum resource reconfiguration trigger information includes: primary user information, and/or spectrum resource request information, and/or adjacent reconfiguration device resource reconfiguration status information.

 The primary user information includes: primary user presence information, and/or supervisory domain command information, and/or primary user victimized information; the spectrum resource request information includes: a current load status of a base station that issues a spectrum resource request and/or Communication quality conditions, including operating frequency bands supported by subordinate nodes of the reconfiguration device, and/or supported bandwidth, and/or time at which the borrowed spectrum resources are used, and/or length of time used to borrow spectrum resources, and/or propensity Frequency band, and/or tolerable interference ceiling, and/or the reason for the request;

The neighbor reconfiguration device resource reconfiguration status information includes: a location of a resource reconfigured cell and a resource distribution of a related cell after reconfiguration, or a location of a resource reconfigured cell and a related cell after reconfiguration The transmission parameters, or the location of the resource re-allocated cell, the resource distribution of the relevant cell after reconfiguration, and the transmission parameters of the relevant cell after reconfiguration.

 The acquiring module 91 obtains the primary user information as: acquiring the primary user information on the primary system spectrum resource occupied by the subordinate node from the database.

 The acquiring module 91 obtains the primary user appearance information and/or the primary user interference information in the primary user information as: obtaining, from the sensing measurement result of the subordinate node, the primary user appearance information on the primary system spectrum resource occupied by the subordinate node and/or Or the primary user is interfered with the information; or, the reconfiguration device obtains the primary user presence information and/or the primary user interference information on the primary system spectrum resource occupied by the subordinate node by using the received spectrum resource request message; Or, after obtaining the primary user appearance information and/or the primary user interference information on the primary system spectrum resource occupied by the subordinate node from the sensing measurement result of the subordinate node, confirming the acquired primary user occurrence information and/or the database The primary user is disturbed by the information;

 And/or, the obtained primary user appearance information in the primary user information is: the primary user appearance information of the database notification stored before the reconfiguration.

 The acquiring module 91 obtains the spectrum resource request information as follows: the base station actively sends the spectrum resource request information, or the relay station triggers the base station to send the spectrum resource request information.

 The obtaining module 91 obtains the resource reconfiguration status information of the adjacent reconfiguration device, and obtains the resource reconfiguration status information of the adjacent reconfiguration device by performing information interaction with the adjacent reconfiguration device.

 The reconfiguration triggering module 92 triggers the reconfiguration of the spectrum resource according to the spectrum resource reconfiguration trigger information: if the spectrum resource reconfiguration trigger information is the primary user information, determining whether the primary user is present, and/or whether the primary user is interfered, And/or whether there is supervisory domain command information, if at least one of the primary user appears, and/or the primary user is interfered, and/or has supervisory domain command information, triggering spectral resource reconfiguration; otherwise, the spectrum is not triggered Resource reconfiguration.

The reconfiguration triggering module 92 triggers the reconfiguration of the spectrum resource according to the spectrum resource reconfiguration trigger information: if the spectrum resource reconfiguration trigger information is the spectrum resource request information, determining to issue the spectrum resource Whether the current load condition of the base station of the source request information exceeds a preset load threshold. If it exceeds, the spectrum resource reconfiguration is triggered. Otherwise, the spectrum resource reconfiguration is not triggered.

 And/or, determining whether the communication quality status of the base station that sends the spectrum resource request information exceeds a preset communication quality threshold, and if so, triggering spectrum resource reconfiguration; otherwise, spectrum resource reconfiguration is not triggered.

 The reconfiguration triggering module 92 triggers the reconfiguration of the spectrum resource according to the spectrum resource reconfiguration trigger information: if the spectrum resource reconfiguration trigger information is the reconfiguration device resource reconfiguration status information, according to the resource of the adjacent reconfiguration device The status information is used to determine whether there is interference between the overlapping area or the adjacent area of the adjacent reconfiguration device. If yes, the spectrum resource reconfiguration is triggered. Otherwise, the spectrum resource reconfiguration is not triggered.

 The reconfiguration triggering module 92 triggers the spectrum resource reconfiguration according to the spectrum resource reconfiguration trigger information: if the spectrum resource reconfiguration trigger information includes primary user information, spectrum resource request information, and neighbor reconfiguration device resource reconfiguration status information. The multiple information in the information is judged one by one for each piece of information obtained. If one of the conditions meets the conditions, the spectrum resource re-allocation is triggered. Otherwise, the spectrum resource re-allocation is not triggered.

 The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included. Within the scope of protection of the present invention.

Claims

Claim  A method for triggering reconfiguration of a radio resource, the method comprising: acquiring spectrum resource reconfiguration trigger information, and triggering spectrum resource reconfiguration according to the spectrum resource reconfiguration trigger information.  2. The method of claim 1 wherein  Acquiring the spectrum resource reconfiguration trigger information, and triggering the spectrum resource reconfiguration according to the spectrum resource reconfiguration trigger information to be performed by the reconfiguration device;  The reconfiguration device is an entity having a spectrum resource reconfiguration function;  The spectrum resource reconfiguration trigger information includes: primary user information, and/or spectrum resource request information, and/or adjacent reconfiguration device resource reconfiguration status information.  3. The method of claim 2, wherein  The primary user information includes: primary user presence information, and/or supervisory domain command information, and/or primary user interfered information;  The spectrum resource request information includes: a current load condition and/or a communication quality status of a base station that issues a spectrum resource request, and further includes a working frequency band supported by a subordinate node of the reconfiguration device, and/or a supported bandwidth, and/or a borrowed spectrum resource. The time of initial use, and/or the length of time that the spectrum resource is borrowed, and/or the preferred frequency band, and/or the tolerable upper interference limit, and/or the reason for the request; the adjacent reconfiguration device resource reconfiguration status The information includes: the location of the resource reconfigured cell and the resource distribution of the related cell after reconfiguration, or the location of the resource reconfigured cell and the transmission parameter of the related cell after reconfiguration, or the location of the resource reconfigured cell, after reconfiguration The resource distribution of the relevant cell and the transmission parameters of the relevant cell after reconfiguration.  The method according to claim 2 or 3, wherein the acquiring the primary user information is: the reconfiguration device acquires primary user information on the primary system spectrum resource occupied by the subordinate node from the database. 5. The method of claim 3, wherein The main user appearance information and/or the main user interference information in the acquisition main user information is: the reconfiguration device acquires the main user appearance information on the main system spectrum resource occupied by the subordinate node from the perceptual measurement result of the subordinate node and/ Or the primary user is interfered with the information; or, the reconfiguration device obtains the primary user presence information and/or the primary user interference information on the primary system spectrum resource occupied by the subordinate node by using the received spectrum resource request message; Or, the reconfiguration device obtains the primary user appearance information and/or the primary user interference information on the primary system spectrum resource occupied by the subordinate node from the sensing measurement result of the subordinate node, and then confirms the acquired primary user appearance information to the database. And/or the primary user is disturbed by the information;  And/or, the primary user appearance information in the acquiring primary user information is: a database stored before the reconfiguration is notified to the primary user of the reconfiguration device to appear information.  The method according to claim 2 or 3, wherein the acquiring the spectrum resource request information is: the base station actively sends the spectrum resource request information to the reconfiguration device, or the relay station triggers the base station to send the spectrum resource to the reconfiguration device. Request information.  The method according to claim 2 or 3, wherein the acquiring the resource reconfiguration status information of the adjacent reconfiguration device is: the reconfiguration device acquires the adjacent reconfiguration by performing information interaction with the adjacent reconfiguration device. Device resource reconfiguration status information.  The method according to claim 1, wherein the triggering the spectrum resource reconfiguration according to the spectrum resource reconfiguration trigger information is:  If the spectrum resource reconfiguration trigger information is primary user information, the reconfiguration device determines whether the primary user is present, and/or whether the primary user is interfered, and/or whether there is regulatory domain command information, if the primary user appears, and/or the primary user When at least one of the interfered, and/or supervisory domain command information is established, the spectrum resource reconfiguration is triggered; otherwise, the spectrum resource reconfiguration is not triggered.  The method according to claim 1, wherein the triggering the spectrum resource reconfiguration according to the spectrum resource reconfiguration trigger information is: If the spectrum resource reconfiguration trigger information is spectrum resource request information, the reconfiguration device determines to issue Whether the current load condition of the base station of the spectrum resource request information exceeds a preset load threshold. If it exceeds, the spectrum resource reconfiguration is triggered. Otherwise, spectrum resource reconfiguration is not triggered.  And/or, the reconfiguration device determines whether the communication quality status of the base station that sends the spectrum resource request information exceeds a preset communication quality threshold, and if so, triggers spectrum resource reconfiguration, otherwise, spectrum resource reconfiguration is not triggered.  The method according to claim 1, wherein the triggering the spectrum resource reconfiguration according to the spectrum resource reconfiguration trigger information is:  If the spectrum resource reconfiguration trigger information is the adjacent reconfiguration device resource reconfiguration status information, the reconfiguration device determines whether the overlapping area or the adjacent area of the adjacent reconfiguration device is based on the reconfiguration status information of the adjacent reconfiguration device. There is interference, if it exists, triggering spectrum resource reconfiguration, otherwise, spectrum resource reconfiguration is not triggered.  The method according to claim 1, wherein the triggering the spectrum resource reconfiguration according to the spectrum resource reconfiguration trigger information is:  If the spectrum resource reconfiguration trigger information includes multiple information in the primary user information, the spectrum resource request information, and the adjacent reconfiguration device resource reconfiguration status information, the reconfiguration device determines each of the acquired information one by one, as long as there is one If the condition is met, the spectrum resource reconfiguration is triggered. Otherwise, the spectrum resource reconfiguration is not triggered.  12. A device for triggering reconfiguration of a radio resource, the device comprising: an acquiring module, a reconfiguration trigger module, wherein  An acquiring module, configured to acquire spectrum resource reconfiguration trigger information;  And a re-matching triggering module, configured to trigger a spectrum resource reconfiguration according to the spectrum resource reconfiguration trigger information acquired by the acquiring module.  13. Apparatus according to claim 12 wherein:  The device is a reassortment device; The reconfiguration device is an entity having a spectrum resource reconfiguration function; The spectrum resource reconfiguration trigger information includes: primary user information, and/or a spectrum resource request signal and/or adjacent reconfiguration device resource reconfiguration status information.