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WO2013000320A1 - 一种认知无线电系统资源重配的方法及系统 - Google Patents

一种认知无线电系统资源重配的方法及系统 Download PDF

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Publication number
WO2013000320A1
WO2013000320A1 PCT/CN2012/074202 CN2012074202W WO2013000320A1 WO 2013000320 A1 WO2013000320 A1 WO 2013000320A1 CN 2012074202 W CN2012074202 W CN 2012074202W WO 2013000320 A1 WO2013000320 A1 WO 2013000320A1
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WIPO (PCT)
Prior art keywords
reconfiguration
spectrum
information
network
command
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PCT/CN2012/074202
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English (en)
French (fr)
Inventor
刘星
李岩
任龙涛
周栋
苗婷
张力
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ZTE Corp
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ZTE Corp
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Publication of WO2013000320A1 publication Critical patent/WO2013000320A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1215—Wireless traffic scheduling for collaboration of different radio technologies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a method and system for resource reconfiguration of cognitive radio systems. Background technique
  • the main object of the present invention is to provide a resource reconfiguration for cognitive radio systems.
  • the method and system can realize the overall management of spectrum resources.
  • a method for reconfiguring resource allocation of cognitive radio systems comprising:
  • the reconfiguration module located at the network side node runs the reconfiguration algorithm according to the received spectrum adjustment indication or its own monitoring of the network status of each wireless communication system, and obtains a reconfiguration command;
  • the reconfiguration command is sent to the base station, and the reconfiguration command is executed by the base station to implement resource reconfiguration.
  • the method further includes:
  • the policy control center generates a spectrum adjustment indication according to the overall planning and time schedule of the network of the operator, or after obtaining the available spectrum resources by interacting with the database information, where the spectrum adjustment indication includes a re-adjustment indication of the spectrum resource, and an increase of the RAT. , or enhancements to existing RAT features.
  • the reconfiguration module of the network side node is: a reconfiguration module common to different wireless communication systems, where the network side node is a network node on the core network side or a network node on the network management side.
  • the different wireless communication systems include: Global System for Mobile Communications (GSM), Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE) System/Long Term Evolution Advanced (LTE-A) system.
  • GSM Global System for Mobile Communications
  • UMTS Universal Mobile Telecommunications System
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution Advanced
  • the reconfiguration module running on the network side node runs a reconfiguration algorithm, and the reconfiguration command is:
  • the reconfiguration module located at the network management side or the core network side node obtains spectrum adjustment indication, spectrum usage information, and load status information by performing information interaction with the policy control center or by monitoring network conditions of each wireless communication system;
  • the reconfiguration module analyzes the acquired information, runs the reconfiguration algorithm, and derives the reconfiguration command.
  • the spectrum usage information is information about the usage of the licensed spectrum and the borrowed spectrum by the wireless communication system, and the spectrum usage of the primary system, including frequency, working bandwidth, One or more of the duration of the idle spectrum and the requirements of the transmission parameters;
  • the reconfiguration algorithm includes one or more of spectrum resource re-adjustment, existing RAT upgrade or layout new RAT, addition of multi-standard addition mode, radio resource optimization, and secondary system to main system spectrum borrowing.
  • the reconfiguration command is sent to the base station, and the reconfiguration command is executed by the base station to implement resource reconfiguration:
  • the reconfiguration module sends the reconfiguration command to a Radio Resource Manager (RRM);
  • RRM Radio Resource Manager
  • the RRM controls the base station to perform reconfiguration according to the received reconfiguration command.
  • the method further includes: after the reconfiguration is completed, the base station returns a reconfiguration complete message to the RRM;
  • the RRM forwards the received reconfiguration complete message to the reconfiguration module
  • the reconfiguration module obtains network side performance information after the reconfiguration of the base station according to the reconfiguration command by monitoring the network status of each wireless communication system, and performs reconfiguration adjustment according to the obtained information.
  • a system for reconfiguring a resource of a cognitive radio system comprising a base station, the system further comprising: a reconfiguration module located at a node on the network side;
  • the reconfiguration module is configured to: according to the received spectrum adjustment indication or the monitoring of the network status of each wireless communication system, run a reconfiguration algorithm to obtain a reconfiguration command; and send the reconfiguration command to the base station, through the base station
  • the reconfiguration command is executed to implement resource reconfiguration.
  • system further includes: a database, a policy control center; wherein the database is configured to provide information about the spectrum status of the primary system and the usage information of the reconfiguration module to the idle spectrum of the primary system;
  • the policy control center is configured to generate a spectrum adjustment indication according to the overall planning and time schedule of the network of the operator, or after obtaining the available spectrum resources by interacting with the database information, where the spectrum adjustment indication includes the spectrum resource Re-adjustment indication, addition of radio access technology RAT, or enhancement of existing RAT functionality.
  • the reconfiguration module at the network side node is a reconfiguration module common to different wireless communication systems; the network side node is a network node on the core network side or a network node on the network management side.
  • the different wireless communication systems include: Global System for Mobile Communications (GSM), Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE) System/Long Term Evolution Advanced (LTE-A) system.
  • GSM Global System for Mobile Communications
  • UMTS Universal Mobile Telecommunications System
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution Advanced
  • the reconfiguration module is located at the network management side or the core network side node, and is specifically configured to perform information interaction with the policy control center to obtain a spectrum adjustment indication, or obtain spectrum usage by monitoring network status of each wireless communication system. Situation information, load status information; and according to the obtained information, running a reconfiguration algorithm to obtain a reconfiguration command;
  • the spectrum usage information is information about the usage of the licensed spectrum and the borrowed spectrum by the wireless communication system, and the spectrum usage of the primary system, including the frequency, the working bandwidth, the duration of the idle spectrum, and the requirements of the transmission parameters. Species or more;
  • the reconfiguration algorithm includes one or more of spectrum resource re-adjustment, existing RAT upgrade or layout new RAT, addition of multi-standard addition mode, radio resource optimization, and secondary system to main system spectrum borrowing.
  • the system further comprises: an RRM; wherein
  • the reconfiguration module is further configured to send the reconfiguration command to the RRM;
  • the RRM is configured to control, according to the received reconfiguration command, the base station to perform reconfiguration.
  • the base station is a reconfigurable base station RBS, and is configured to: after the reconfiguration is completed, return a reconfiguration complete message to the RRM;
  • the RRM is further configured to forward the received reconfiguration complete message to the reconfiguration module; the reconfiguration module is further configured to: perform, by monitoring the network status of each wireless communication system, acquire the base station to perform heavy according to the reconfiguration command. The network side performance information is matched, and the reconfiguration adjustment is performed according to the obtained information.
  • the present invention runs the reconfiguration according to the received information through the reconfiguration module located at the network side node.
  • the algorithm obtains the reconfiguration command and realizes the coordinated allocation of spectrum resources.
  • the resources of the cognitive radio system can be managed in an integrated manner, avoiding mutual interference, and ensuring that each secondary system or operator accesses the idle spectrum of the primary system. Fairness. DRAWINGS
  • FIG. 1 is a schematic flow chart of a method for resource reconfiguration of a cognitive radio system according to the present invention
  • FIG. 1 is a structural diagram of a system for reconfiguring a cognitive radio system resource according to the present invention
  • FIG. 3 is a structural diagram of an LTE system for implementing a method for reconfiguring a cognitive radio system resource according to the present invention
  • FIG. 4 is a structural diagram of a GSM/UMTS system for implementing a method for resource reconfiguration of a cognitive radio system of the present invention
  • FIG. 5 is another structural diagram of a GSM/UMTS system for implementing a method for resource reconfiguration of cognitive radio systems of the present invention
  • FIG. 6 is a structural diagram of an LTE system for implementing the reconfiguration of a spectrum resource of a primary system according to the present invention
  • FIG. 7 is a structural diagram of a GSM/UMTS system for implementing a spectrum resource reconfiguration of a primary system by using the present invention
  • FIG. 8 is another structural diagram of a GSM/UMTS system for implementing the reusing of the spectrum resource of the primary system according to the present invention.
  • FIG. 9 is a structural diagram of a hybrid network of an LTE system and a GSM/UMTS system for implementing the reconfiguration of the spectrum resource of the primary system by the present invention
  • FIG. 10 is another structural diagram of a hybrid network of an LTE system and a GSM/UMTS system for implementing the reconfiguration of the spectrum resource of the primary system by the present invention. detailed description
  • the basic idea of the present invention is: the reconfiguration module located at the network side node runs the reconfiguration algorithm according to the received spectrum adjustment indication or its own monitoring of the network status of each wireless communication system, and obtains a reconfiguration command; Sending a command to the base station, and executing the reconfiguration command by the base station Now the resources are reconfigured.
  • FIG. 1 shows a flow of a method for resource reconfiguration of a cognitive radio system according to the present invention. As shown in FIG. 1, the method includes the following steps:
  • Step 101 The reconfiguration module located at the network side node runs a reconfiguration algorithm according to the received spectrum adjustment indication or its own monitoring of the network status of each wireless communication system, and obtains a reconfiguration command; specifically, a common wireless communication system
  • the reconfiguration module may be located at a network node on the core network side or a network node on the network management side, where the wireless communication system includes at least: Global System of Mobile communication (GSM), Universal Mobile Communication System (Universal Mobile Communication System) Telecommunications System (UMTS), Long Term Evolution (LTE) system/Long Term Evolution-Advanced (LTE-A) system, etc.
  • GSM Global System of Mobile communication
  • Universal Mobile Communication System Universal Mobile Communication System
  • UMTS Universal Mobile Communication System
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution-Advanced
  • the reconfiguration module obtains spectrum adjustment indication, spectrum usage information, and load status information by performing information interaction with the policy control center, or by monitoring network conditions of each wireless communication system; the reconfiguration module analyzes the acquired information, and runs pre-stored information.
  • the reconfiguration algorithm obtains a reconfiguration command; where the spectrum usage information is information about the usage of the licensed spectrum and the borrowed spectrum by the respective wireless communication systems, and the spectrum usage of the primary system; specifically: frequency, working bandwidth, idle One or more of the duration of the spectrum and the requirements of the transmission parameters; wherein the main system may be a broadcast television system or the like;
  • the pre-stored reconfiguration algorithms include: spectrum resource re-adjustment, existing RAT upgrade or layout new RAT, addition of multi-standard addition mode, radio resource optimization, and one or more of secondary system spectrum borrowing from the main system.
  • the method may further include: the policy control center obtaining the available information according to the overall planning and time schedule of the operator's network, or by interacting with the database information.
  • the spectrum adjustment indication is generated, where the spectrum adjustment indication includes a re-adjustment indication of the spectrum resource, an increase of the RAT, or an enhancement of the existing RAT function; specifically, a certain spectrum of the RATI is replaced by the RAT2, in the GSM.
  • LTE systems are deployed, UMTS is upgraded to High Speed Packet Access (HSPA) technology, and so on.
  • HSPA High Speed Packet Access
  • Step 102 Send the reconfiguration command to the base station, and execute the reconfiguration command by the base station to implement resource reconfiguration.
  • the reconfiguration module may send the reconfiguration command to a Radio Resource Manager (RRM), and after receiving the reconfiguration command, the RRM controls the base station to perform reconfiguration; where the base station is Reconfigure hardware resources and radio resources, and support multiple standard modes of reconfigurable base stations (RBS);
  • RRM Radio Resource Manager
  • the method further includes: after the reconfiguration is completed, the base station returns a reconfiguration complete message to the RRM; the RRM forwards the received reconfiguration complete message to the reconfiguration module;
  • the reconfiguration module can also obtain network side performance information (such as interference situation information, etc.) after the base station performs reconfiguration according to the reconfiguration command by detecting the status of each wireless communication network, and perform necessary information according to the acquired information.
  • the reconfiguration adjustment that is, the re-allocation algorithm results in a reconfiguration command and subsequent processing as described in step 102.
  • FIG. 2 shows a structure of a system for reconfiguring a cognitive radio system resource according to the present invention.
  • the system includes: a base station, a reconfiguration module located at a network side node; wherein, the base station is an RBS, and FIG. 2 is performed by RBS1 and RBS2. Indicated;
  • the reconfiguration module is configured to: according to the received spectrum adjustment indication or the monitoring of the network status of each wireless communication system, run a reconfiguration algorithm to obtain a reconfiguration command; and send the reconfiguration command to the base station, through the base station
  • the reconfiguration command is executed to implement resource reconfiguration.
  • the system further includes: a database, a policy control center; wherein the database may be provided by a main system operator or a third party, and includes spectrum status information and coverage of the main system in a local or a plurality of local regions. Scope or planned by the operator The usage information of the reconfiguration module on the idle spectrum of the primary system, and the load information, communication quality status information, and usage statistical law information in the coverage of each reconfiguration module; and spectrum etiquette information, such as interference avoidance strategy, spectrum lease rule, etc.
  • the main system spectrum status information includes: the spectrum status being used, including frequency, bandwidth, possible duration, coverage, isolation band, etc.; unused spectrum status, including frequency, bandwidth, coverage, Possible duration, allowable maximum transmit power, etc.; spectrum information that is not allowed, may be the management domain restricted spectrum or the operator reserved spectrum, etc., including: frequency, bandwidth, and other information.
  • the usage information of the reconfiguration module for the idle spectrum of the primary system includes: the idle spectrum used by itself, and the location of the reconfiguration module.
  • the database is responsible for providing each secondary system with available primary system idle spectrum resources.
  • the policy control center is configured to generate a spectrum adjustment indication according to the overall planning and time schedule of the network of the operator, or after obtaining the available spectrum resources by interacting with the database information, where the spectrum adjustment indication includes the spectrum resource
  • the re-adjustment indication, the addition of the RAT, or the enhancement of the existing RAT function may be located on the network management side network element, such as the network element or the network management system on the element management system (EMS) side
  • the network element on the network management system (NMS) is a function module related to the layout addition or upgrade side of the new RAT, and needs to borrow the idle spectrum resources of the primary system. In actual applications, it can be operated by the network operator. It is also used to obtain information about the spectrum usage of the main system in the database.
  • the reconfiguration module is located at a node on the network management side or the core network side, and is specifically configured to perform information interaction with the policy control center, or monitor network conditions of each wireless communication system, and obtain spectrum adjustment indication and spectrum usage.
  • MD mobile device
  • the reconfiguration command may include information such as function enhancement information for an existing RAT, software version information, spectrum information of a new RAT, a new function or an effective time of a new RAT, and an enhanced range of new functions.
  • the spectrum usage information is information about the usage of the licensed spectrum and the borrowed spectrum by the wireless communication system, and the spectrum usage of the primary system; specifically, the frequency, the working bandwidth, the duration of the idle spectrum, and the transmission parameter requirements.
  • the reconfiguration algorithm includes: spectrum resource re-adjustment, existing RAT upgrade or layout new RAT, addition of multi-standard addition mode, radio resource optimization, and one or more of secondary system spectrum borrowing from the main system.
  • the system further includes: an RRM; wherein, in the GSM/UMTS system, the RRM may be located in a Base Station Controller (BSC)/Radio Network Controller (RNC), Can be located in the RBS; in the LTE system, the RRM can be located in the RBS;
  • BSC Base Station Controller
  • RNC Radio Network Controller
  • the reconfiguration module is further configured to send the reconfiguration command to the RRM;
  • the RRM is configured to: after receiving the reconfiguration command, control the base station to perform reconfiguration; where, the RRM is further configured to receive a channel request of the RBS, perform RBS channel allocation evaluation, and manage a request and allocation of the radio channel of the MD; Software version download upgrade; monitor the load status of the cell; indicate the redistribution of the RBS, and evaluate the impact after redistribution, such as interference tolerance, and indicate the resource allocation to the reconfiguration module.
  • the base station (RBS1 or RBS2) is configured to: after the reconfiguration is completed, reply a reconfiguration complete message to the RRM; specifically, the RBS may support inter-RAT conversion, such as GSM-UMTS, UMTS-LTE, etc.; It is also used to manage the utilization of radio resources (RRs) activated in each supported RAT, and dynamically manage the existing systems and the next generation systems.
  • RRs radio resources
  • Resource allocation allocation of RR that is assigned to one or more modes of time division duplex (TDD) and frequency division duplex (FDD) activation
  • dynamic capacity optimization such as power saving, load balancing, etc.
  • downloading from the network side for new Functional upgrades such as UMTS-HSPA+; provide wireless resource management and services to user terminals, and more.
  • the RRM is further configured to forward the received reconfiguration complete message to the reconfiguration module; the reconfiguration module is further configured to: perform, by monitoring the network status of each wireless communication system, acquire the base station to perform heavy according to the reconfiguration command. The network side performance information is matched, and the reconfiguration adjustment is performed according to the obtained information.
  • FIG. 3 shows an LTE system structure for implementing the method for reconfiguring the cognitive radio system resources of the present invention.
  • the RRM is located in the RBS, and the reconfiguration module is located in the network management side/core network side network element; The process of implementing the above method in the LTE system is described in detail.
  • Step 1 The reconfiguration module collects the information reported by the network side and receives the spectrum adjustment indication sent by the policy control center.
  • the reconfiguration module needs to determine whether the reconfiguration algorithm needs to be run according to the load condition of the cell around the cell, the spectrum utilization situation, etc.;
  • the planned time schedule adjusts a certain frequency band currently used by LTE to the spectrum of a higher-level system, and then sends a spectrum adjustment indication to the reconfiguration module.
  • the spectrum adjustment indication includes a reconfiguration adjustment indication of the frequency resource, a certain spectrum used by the LTE system, an effective time (such as a time period in which the spectrum can be used), an area range, and the like.
  • Step 2 The reconfiguration module analyzes the obtained information, runs a reconfiguration algorithm, and sends a reconfiguration command to the RRM in the RBS.
  • the reconfiguration command includes: spectrum information to be reformed, effective time, area range, interference tolerance to adjacent frequency bands, handover command, and the like.
  • Step 3 After the RRM in the RBS receives the reconfiguration command from the reconfiguration module, the resource is evaluated. After reassigning the impact on the network side, execute the reconfiguration command.
  • Step 4 After receiving the reconfiguration command, the RBS performs resource reconfiguration in the effective time period according to the RRM indication.
  • Step 5 After the RBS completes resource reconfiguration, the RRM in the RBS returns a reconfiguration complete message to the reconfiguration module.
  • FIG. 4 shows a GSM/UMTS system structure for implementing the method for reconfiguring the cognitive radio system resources of the present invention.
  • the RRM is located in the RBS, and the reconfiguration module is located at the network management side/core network side network element;
  • Figure 4 details the internal resource optimization of the GSM/UMTS system and the process of GSM reconfiguration to UMTS.
  • Step 1 The reconfiguration module collects the information reported by the network side and receives the spectrum adjustment indication sent by the policy control center.
  • the reconfiguration module needs to determine whether the reconfiguration algorithm needs to be run according to the load status and spectrum utilization of the surrounding cells; According to the time schedule of the network planning, a certain frequency band used by the current GSM is adjusted to the spectrum of the UMTS, and the spectrum adjustment indication is sent to the reconfiguration module.
  • the spectrum adjustment indication includes: a reconfiguration adjustment indication of the frequency resource, a certain spectrum used by the GSM, an effective time (such as a time period in which the spectrum can be used), a range of the area, and the like.
  • Step 2 The reconfiguration module analyzes the received information, runs the reconfiguration algorithm, and sends a reconfiguration command to the BSC/RNC, and transparently transmits it to the RRM in the RBS by the BSC/RNC;
  • the reconfiguration command includes: spectrum information to be reformed, effective time, area range, interference tolerance to adjacent frequency bands, handover command, and the like.
  • Step 3 After receiving the reconfiguration command from the reconfiguration module, the RRM evaluates the impact on the network side after the resource is reassigned, and executes the reconfiguration command.
  • Step 4 After receiving the reconfiguration command, the RBS performs resource reconfiguration in the effective time period according to the RRM indication.
  • Step 5 After the RBS completes the resource reconfiguration, the RRM in the RBS returns a reconfiguration complete message to the BSC/RNC, and the BSC/RNC transparently transmits the reconfiguration module to confirm the completion of the reconfiguration.
  • the original GSM BSC is used as the UMTS RNC.
  • the procedure is also applicable to the reverse process, that is, the UMTS is reassigned to GSM due to network planning; at this time, after the reconfiguration is completed, the original UMTS RNC is used as the GSM BSC.
  • FIG. 5 shows another structure of a GSM/UMTS system for implementing the method for reconfiguring the cognitive radio system resources of the present invention.
  • the RRM is located in the BSC/RNC, and the reconfiguration module is located on the network management side/core network side network.
  • the following is a detailed description of the internal resource optimization of the GSM/UMTS system and the process of GSM reconfiguration to UMTS in conjunction with FIG. 5.
  • Step 1 The reconfiguration module collects the information reported by the network side and receives the spectrum adjustment indication sent by the policy control center.
  • the reconfiguration module needs to determine whether the reconfiguration algorithm needs to be run according to the load status and spectrum utilization of the surrounding cells; According to the time schedule of the network planning, a certain frequency band used by the current GSM is adjusted to the spectrum of the UMTS, and a spectrum adjustment indication is sent to the reconfiguration module.
  • the spectrum adjustment indication includes: a reconfiguration adjustment indication of the frequency resource, a certain spectrum used by the GSM, an effective time (such as a time period in which the spectrum can be used), a range of the area, and the like.
  • Step 2 The reconfiguration module analyzes the received information, runs a reconfiguration algorithm, and sends a reconfiguration command to the RRM in the BSC/RNC;
  • the reconfiguration command includes: spectrum information to be reformed, effective time, area range, interference tolerance to adjacent frequency bands, handover command, and the like.
  • Step 3 After receiving the reconfiguration command from the reconfiguration module, the RRM evaluates the impact on the network side after the resource is reassigned, and controls the RBS to execute the reconfiguration command.
  • Step 4 After receiving the reconfiguration command, the RBS performs resource reconfiguration in the effective time period according to the RRM indication.
  • Step 5 After completing the resource reconfiguration, the RBS returns a reconfiguration complete message to the RRM in the BSC/RNC, and the RRM forwards to the reconfiguration module to confirm the completion of the reconfiguration.
  • the original GSM BSC is used as the UMTS RNC.
  • the procedure is also applicable to the reverse process, that is, the UMTS is reassigned to GSM due to network planning; at this time, after the reconfiguration is completed, the original UMTS RNC is used as the GSM BSC.
  • FIG. 6 shows an LTE system structure for implementing the spectrum resource reconfiguration of the primary system (such as a broadcast television system) of the present invention.
  • the RRM is located in the RBS, and the reconfiguration module is located on the network management side/core network side network element;
  • the process of borrowing the broadcast television system white space resources (TVWS) from the LTE system will be described in detail below with reference to FIG.
  • Step 1 The reconfiguration module collects the information reported by the network side and receives the spectrum adjustment indication sent by the policy control center.
  • the reconfiguration module needs to determine whether the TVWS spectrum resource can be borrowed according to the TVWS usage information acquired in the policy control center; wherein, the policy control center passes the database Information exchange acquires usage information of spectrum resources of the primary system;
  • the TVWS usage information includes: an unused spectrum state; specifically, a frequency point, a working bandwidth, a coverage range, a possible duration, an allowable maximum transmission power, and the like.
  • Step 2 The reconfiguration module analyzes the received information, runs a reconfiguration algorithm, and sends a reconfiguration command to the RRM in the RBS;
  • the reconfiguration commands include: TVWS frequency, working bandwidth, coverage, possible duration, maximum allowed transmit power, and the like.
  • Step 3 After receiving the reconfiguration command from the reconfiguration module, the RRM performs a reconfiguration command to switch the services on the part of the LTE licensed spectrum to the TVWS.
  • Step 4 After receiving the reconfiguration command, the RBS performs reconfiguration according to the RRM indication during the specified time period.
  • Step 5 After the RBS completes the resource reconfiguration, the RRM in the RBS returns a reconfiguration complete message to the reconfiguration module to confirm that the reconfiguration is complete, and the reconfiguration module feeds back the reconfiguration result to the policy control center.
  • FIG. 7 shows a GSM/UMTS system structure for implementing spectrum resource reconfiguration of a host system (such as a broadcast television system) according to the present invention.
  • the RRM is located in the RBS
  • the reconfiguration module is located on the network management side/core network side network.
  • the specific process of borrowing TVWS in the GSM/UMTS system shown in FIG. 7 is similar to the process of borrowing TVWS in the LTE system shown in FIG. 6, except that there is an independent BSC/RNC on the network side of the GSM/UMTS system, therefore,
  • the BSC/RNC is mainly used to transparently transmit messages between the reconfiguration module and the RBS/RRM in the process of borrowing the TVWS.
  • FIG. 8 shows another structure of the GSM/UMTS system for implementing the re-allocation of the spectrum resource of the primary system according to the present invention.
  • the RRM is located in the BSC/RNC, and the reconfiguration module is located on the network element side/core network side network element;
  • the process of borrowing TVWS from the GSM/UMTS system will be described in detail below with reference to FIG. 8. It should be understood that the process is different from the process of borrowing TVWS by the GSM/UMTS system shown in FIG. 7 because the RRM shown in FIG. 8 is located in the BSC/RNC. At this point, BSC/RNC is not just a function of transparent messaging.
  • Step 1 The reconfiguration module collects the information reported by the network side and receives the spectrum adjustment indication information sent by the policy control center.
  • the reconfiguration module needs to determine whether the TVWS can be borrowed according to the TVWS usage information acquired in the policy control center; wherein the policy control center interacts with the database information. Obtaining usage information of the spectrum resources of the primary system;
  • the TVWS usage information includes: an unused spectrum state; specifically, a frequency point, a working bandwidth, a coverage range, a possible duration, an allowable maximum transmission power, and the like.
  • Step 2 The reconfiguration module analyzes the received information, runs the reconfiguration algorithm, and goes to the BSC/RNC. RRM sends a reconfiguration command;
  • the reconfiguration commands include: TVWS frequency, working bandwidth, coverage, possible duration, maximum allowed transmit power, and the like.
  • Step 3 After receiving the reconfiguration command from the reconfiguration module, the RRM controls the RBS to execute a reconfiguration command to switch the services on the licensed spectrum of the GSM/UMTS system to the TVWS.
  • Step 4 After receiving the reconfiguration command, the RBS performs reconfiguration according to the RRM indication during the specified time period.
  • Step 5 After completing the resource reconfiguration, the RBS returns a reconfiguration complete message to the RRM in the BSC/RNC, and the RRM forwards the reconfiguration complete message to the reconfiguration module to confirm that the reconfiguration is complete, and the reconfiguration module feeds back the reconfiguration result to the policy. control center.
  • the RBS includes an RBS of an LTE system and a GSM/UMTS system;
  • the RRM is located in the RBS.
  • the RRM is located in the BSC/RNC.
  • the reconfiguration module is located in the network element side/core network side network element.
  • Step 1 The RRM of the respective system monitors the running status of the respective networks, and when the current business is monitored and the load is heavy, the reconfiguration module is reported;
  • Step 2 The reconfiguration module runs the reconfiguration algorithm according to the obtained system information, and obtains a reconfiguration command;
  • the information acquired by the reconfiguration module includes: spectrum usage information from each RBS, load status information, reconfiguration request information, and spectrum adjustment indications from the policy control center, idle spectrum resource information, and the like.
  • Step 3 The reconfiguration module sends the reconfiguration command to the subordinate network element.
  • all reconfiguration commands related to reconfiguration of the LTE system are sent to the corresponding
  • the RBS of the LTE controls the LTE system network element to perform resource reconfiguration by the RRM in the RBS, and the BSC/RNC only plays a transparent role for these messages; all reconfiguration commands related to the reconfiguration of the GSM/UMTS system will be sent.
  • the RRM in the corresponding BSC/RNC is controlled by the GSM/UMTS system network element for reconfiguration.
  • the reconfiguration is controlled by the RRM in the BSC/RNC, and after the reconfiguration is performed, the RRM in the RBS of the LTE system functions, and is heavy on the GSM/UMTS system.
  • the BSC/RNC corresponding to the RBS of the LTE system transmits only relevant system messages to the RBS. If the LTE system is reconfigured as a GSM/UMTS system, after the reconfiguration is completed, the corresponding RBS is controlled by the RRM in the BSC/RNC, and the RRM in the RBS (LTE) no longer functions.
  • the RBS includes an LTE system and an RBS of a GSM/UMTS system; / GSM/UMTS system, RRM is located in the RBS; the reconfiguration module is located in the network management side/core network side network element; the following is a process of implementing the resource reconfiguration of the LTE system and the GSM/UMTS system hybrid network in conjunction with FIG. Detailed description.
  • Step 1 The RRM of the respective system monitors the running status of the respective networks, and when the current business is monitored and the load is heavy, the reconfiguration module is reported;
  • Step 2 The reconfiguration module runs the reconfiguration algorithm according to the obtained system information, and obtains a reconfiguration command;
  • the information acquired by the reconfiguration module includes: spectrum usage information from each RBS, load status information, reconfiguration request information, and spectrum adjustment indications from the policy control center, idle spectrum resource information, and the like.
  • Step 3 The reconfiguration module sends the reconfiguration command to the subordinate network element.

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Abstract

本发明提供了一种认知无线电系统资源重配的方法及系统，所述方法包括：位于网络侧节点的重配模块根据接收到的频谱调整指示或自身对各无线通信系统网络状况的监测，运行重配算法，得出重配命令；将所述重配命令发送至基站，通过基站执行所述重配命令，实现资源重配。本发明认知无线电系统资源重配的方法及系统，通过位于网络侧节点的重配模块根据接收到的信息，得到重配命令，实现频谱资源的协调分配，如此，能够使认知无线电系统的资源得到统筹管理，避免了相互干扰，保障了各次级系统或运营商接入主系统空闲频谱的公平性。

Description

一种认知无线电系统资源重配的方法及系统 技术领域
本发明涉及无线通信领域， 尤其涉及一种认知无线电系统资源重配的 方法及系统。 背景技术
随着人们对无线通信业务， 尤其是高端业务需要的不断增长， 更多的 频谱被规划用于个人无线通信业务， 而现实的问题是在传统的固定频谱分 配模式下， 频谱资源的利用率并不高， 且随着系统需求的多样化， 多种无 线接入技术（Radio Access Technology, RAT ) 的并存已是现状。
从目前网络运营的现状及发展趋势来看， 运营商希望能够统一管理短 期或地理位置上共存的不同系统， 以适应网络流量特征和资源利用的优化； 运营商希望能够根据驻留在特定区域的小区业务量变化， 动态地管理现存 系统和下一代系统的硬件资源和无线资源， 这里， 所用到的新技术为认知 无线电 （Cognitive Radio, CR )技术。
而通常， 可运营的无线通信技术所使用的频谱已经通过各种形式， 例 如拍卖， 由各国政府规划分配给运营商， 它的使用权限和范围在一定时期 内是固定不变的， 即使一个运营商拥有多个系统， 更确切的说配属给这些 系统的频谱， 也无法调整系统间占用频谱的比例来使系统性能达到最优需 要， 因此， 针对应用认知无线电技术的认知无线电系统的频谱等资源进行 统筹管理， 是一个急需解决的问题。 发明内容
有鉴于此， 本发明的主要目的在于提供一种认知无线电系统资源重配 的方法及系统， 能够实现频谱资源的统筹管理。
为达到上述目的， 本发明的技术方案是这样实现的：
一种认知无线电系统资源重配的方法， 所述方法包括：
位于网络侧节点的重配模块根据接收到的频谱调整指示或自身对各无 线通信系统网络状况的监测， 运行重配算法， 得出重配命令；
将所述重配命令发送至基站， 通过基站执行所述重配命令， 实现资源 重配。
进一步地， 所述方法还包括：
策略控制中心根据运营商的网络整体规划和时间进度、 或通过与数据 库信息交互获得可用的频谱资源后， 生成频谱调整指示； 其中， 所述频谱 调整指示包括频谱资源的重新调整指示、 RAT的增加、 或现有 RAT功能的 增强。
其中， 所述位于网络侧节点的重配模块为： 不同无线通信系统共同的 重配模块， 所述网络侧节点为核心网侧的网络节点或网管侧的网络节点。
其中， 所述不同无线通信系统包括： 全球移动通讯系统（GSM )、 通用 移动通信系统（UMTS )、 长期演进（LTE ) 系统 /长期演进高级（LTE-A ) 系统。
其中， 所述位于网络侧节点的重配模块运行重配算法， 得出重配命令 为：
位于网管侧或核心网侧节点的重配模块通过与策略控制中心进行信息 交互、 或通过对各无线通信系统网络状况的监测， 获取频谱调整指示、 频 谱使用情况信息、 负载状态信息；
重配模块分析获取的信息， 运行重配算法， 得出重配命令。
其中， 所述频谱使用情况信息为各无线通信系统对自身授权频谱及借 用频谱的使用情况、 主系统频谱使用情况的信息， 包括频点、 工作带宽、 空闲频谱的持续时间、 发射参数要求的一种或多种；
所述重配算法包括频谱资源重新调整、 现有 RAT升级或布局新 RAT、 增加多标准增加模式、 无线资源优化、 次级系统对主系统频谱借用的一种 或多种。
其中， 所述将重配命令发送至基站， 通过基站执行所述重配命令， 实 现资源重配为：
重配模块将所述重配命令发送给无线资源管理器（ RRM );
RRM根据接收到的重配命令， 控制基站执行重配。
进一步地， 在通过基站执行所述重配命令之后， 所述方法还包括： 基站在重配完成后， 回复重配完成消息给所述 RRM;
RRM将接收的重配完成消息转发给所述重配模块；
重配模块通过对各无线通信系统网络状况的监测， 获取基站按照重配 命令执行重配后的网络侧性能信息， 并根据获取的信息， 进行重配调整。
一种认知无线电系统资源重配的系统， 包括基站， 所述系统还包括： 位于网络侧节点的重配模块； 其中，
所述重配模块， 用于根据接收到的频谱调整指示或对各无线通信系统 网络状态的监测， 运行重配算法， 得出重配命令； 并将所述重配命令发送 至基站， 通过基站执行所述重配命令， 实现资源重配。
进一步地， 所述系统还包括： 数据库、 策略控制中心； 其中， 所述数据库， 用于提供主系统频谱状态信息、 重配模块对主系统空闲 频谱的使用信息；
所述策略控制中心， 用于根据运营商的网络整体规划和时间进度、 或 通过与所述数据库信息交互获得可用的频谱资源后， 生成频谱调整指示； 其中，所述频谱调整指示包括频谱资源的重新调整指示、无线接入技术 RAT 的增加、 或现有 RAT功能的增强。 其中， 所述位于网络侧节点的重配模块为不同无线通信系统共同的重 配模块； 所述网络侧节点为核心网侧的网络节点或网管侧的网络节点。
其中， 所述不同无线通信系统包括： 全球移动通讯系统（GSM )、 通用 移动通信系统（UMTS )、 长期演进（LTE ) 系统 /长期演进高级（LTE-A ) 系统。
其中， 所述重配模块， 位于网管侧或核心网侧节点， 具体用于与所述 策略控制中心进行信息交互， 获取频谱调整指示， 或通过对各无线通信系 统网络状况的监测， 获取频谱使用情况信息、 负载状态信息； 并根据获取 的信息， 运行重配算法， 得出重配命令；
其中， 所述频谱使用情况信息为各无线通信系统对自身授权频谱及借 用频谱的使用情况、 主系统频谱使用情况的信息， 包括频点、 工作带宽、 空闲频谱的持续时间、 发射参数要求的一种或多种；
所述重配算法包括频谱资源重新调整、 现有 RAT升级或布局新 RAT、 增加多标准增加模式、 无线资源优化、 次级系统对主系统频谱借用的一种 或多种。
优选地， 所述系统进一步包括： RRM; 其中，
所述重配模块， 还用于将所述重配命令发送至 RRM;
所述 RRM, 用于根据接收到的重配命令， 控制基站执行重配。
其中， 所述基站， 为可重配基站 RBS, 用于在重配完成后， 回复重配 完成消息给所述 RRM;
所述 RRM, 还用于将接收的重配完成消息转发给所述重配模块； 所述重配模块， 还用于通过对各无线通信系统网络状况的监测， 获取 基站按照重配命令执行重配后的网络侧性能信息， 并根据获取的信息， 进 行重配调整。
本发明通过位于网络侧节点的重配模块根据接收到的信息， 运行重配 算法， 得出重配命令， 实现频谱资源的协调分配， 如此， 能够使认知无线 电系统的资源得到统筹管理， 避免了相互干扰， 保障了各次级系统或运营 商接入主系统空闲频谱的公平性。 附图说明
图 1为本发明认知无线电系统资源重配的方法的流程示意图； 图 为本发明认知无线电系统资源重配的系统的结构图；
图 3为实现本发明认知无线电系统资源重配的方法的 LTE系统结构图； 图 4为实现本发明认知无线电系统资源重配的方法的 GSM/UMTS系统 结构图；
图 5为实现本发明认知无线电系统资源重配的方法的 GSM/UMTS系统 另一结构图；
图 6为实现本发明借用主系统频谱资源重配的 LTE系统结构图； 图 7为实现本发明借用主系统频谱资源重配的 GSM/UMTS 系统结构 图；
图 8为实现本发明借用主系统频谱资源重配的 GSM/UMTS系统另一结 构图；
图 9为实现本发明借用主系统频谱资源重配的 LTE系统与 GSM/UMTS 系统混合网络的结构图；
图 10 为实现本发明借用主系统频谱资源重配的 LTE 系统与 GSM/UMTS系统混合网络的另一结构图。 具体实施方式
本发明的基本思想为： 位于网络侧节点的重配模块根据接收到的频谱 调整指示或自身对各无线通信系统网络状况的监测， 运行重配算法， 得出 重配命令； 将所述重配命令发送至基站， 通过基站执行所述重配命令， 实 现资源重配。
为使本发明的目的、 技术方案和优点更加清楚明白， 以下举实施例并 参照附图， 对本发明进一步详细说明。
图 1示出了本发明认知无线电系统资源重配的方法的流程， 如图 1所 示， 所述方法包括下述步驟：
步驟 101 ,位于网络侧节点的重配模块根据接收到的频谱调整指示或自 身对各无线通信系统网络状况的监测， 运行重配算法， 得出重配命令； 具体地， 不同无线通信系统共同的重配模块可以位于核心网侧的网络 节点、 或网管侧的网络节点， 其中， 所述无线通信系统至少包括： 全球移 动通讯系统 ( Global System of Mobile communication, GSM )、 通用移动通 信系统（ Universal Mobile Telecommunications System, UMTS )、 长期演进 ( Long Term Evolution , LTE ) 系统 /长期演进高级 （ Long Term Evolution- Advanced , LTE-A ) 系统等；
重配模块通过与策略控制中心进行信息交互， 或通过对各无线通信系 统网络状况的监测， 获取频谱调整指示、 频谱使用情况信息、 负载状态信 息； 重配模块分析获取的信息， 运行预先存储的重配算法， 得出重配命令； 这里， 频谱使用情况信息为各无线通信系统对自身授权频谱及借用频 谱的使用情况、 主系统频谱使用情况的信息； 具体包括： 频点、 工作带宽、 空闲频谱的持续时间、 发射参数要求的一种或多种； 其中， 主系统可以为 广播电视系统等；
预先存储的重配算法包括： 频谱资源重新调整、 现有 RAT升级或布局 新 RAT、 增加多标准增加模式、 无线资源优化、 次级系统对主系统频谱借 用的一种或多种。
应当理解， 在本步驟之前， 所述方法还可以包括： 策略控制中心根据 运营商的网络整体规划和时间进度、 或通过与数据库信息交互获得可用的 频谱资源后， 生成频谱调整指示； 其中， 所述频谱调整指示包括频谱资源 的重新调整指示、 RAT的增加、 或现有 RAT功能的增强； 具体如 RATI的 某段频谱被 RAT2取代、 在 GSM中部署了 LTE系统、 将 UMTS升级为高 速分组接入 ( High Speed Packet Access , HSPA )技术等等。
步驟 102, 将所述重配命令发送至基站， 通过基站执行所述重配命令， 实现资源重配；
具体地， 重配模块可以将所述重配命令发送给无线资源管理器（Radio Resource Manager, RRM ), RRM接收到所述重配命令后， 控制基站执行重 配； 这里， 所述基站是可以对硬件资源和无线资源进行重配， 支持多个标 准模式的可重配基站（Reconfigurable Base Station, RBS );
另外， 在本步驟之后， 所述方法还包括： 基站在重配完成后， 回复重 配完成消息给所述 RRM; 所述 RRM将接收到的重配完成消息转发给所述 重配模块； 另外， 所述重配模块还可以通过对各无线通信网络状况的检测， 获取基站按照重配命令执行重配后的网络侧性能信息 （如干扰情况信息 等）， 并根据获取的信息， 进行必要的重配调整， 即重新进行重配算法得出 重配命令及如步驟 102所述的后续处理。
图 2示出了本发明认知无线电系统资源重配的系统的结构， 所述系统 包括： 基站、 位于网络侧节点的重配模块； 其中， 所述基站为 RBS, 图 2 以 RBS1和 RBS2进行了示意；
所述重配模块， 用于根据接收到的频谱调整指示或对各无线通信系统 网络状态的监测， 运行重配算法， 得出重配命令； 并将所述重配命令发送 至基站， 通过基站执行所述重配命令， 实现资源重配。
进一步地， 所述系统还包括： 数据库、 策略控制中心； 其中， 所述数据库， 可由主系统运营商或第三方提供， 包含在本地或包含本 地的若干个地区的主系统频谱状态信息、 覆盖不同范围或依运营商规划的 各重配模块对主系统空闲频谱的使用信息， 以及各重配模块覆盖范围内的 负载信息、 通信质量状况信息、 使用统计规律信息； 还包括频谱礼仪信息， 如干扰规避策略、 频谱租赁规则等； 其中， 主系统频谱状态信息包括： 正 在使用的频谱状态， 包括频点、 带宽、 可能的持续时间、 覆盖范围、 隔离 带等信息； 未使用的频谱状态， 包括频点、 带宽、 覆盖范围、 可能的持续 时间、 允许最大发射功率等信息； 不允许使用的频谱信息， 可能是管理域 限制频谱或运营商预留频谱等， 包括： 频点、 带宽等信息。 重配模块对主 系统空闲频谱的使用信息包括： 自身使用的空闲频谱， 及该重配模块所在 的位置。 所述数据库负责向各次级系统提供其可用的主系统空闲频谱资源。
所述策略控制中心， 用于根据运营商的网络整体规划和时间进度、 或 通过与所述数据库信息交互获得可用的频谱资源后， 生成频谱调整指示； 其中， 所述频谱调整指示包括频谱资源的重新调整指示、 RAT 的增加、 或 现有 RAT功能的增强； 这里， 所述策略控制中心可以位于网管侧网元， 如 网元管理系统（Element Management System, EMS )侧的网元或网络管理 系统（ Network Management System, NMS )侧的网元， 是涉及到新 RAT的 布局添加或者升级侧的策略、 需要借用主系统空闲频谱资源时的功能模块； 在实际应用中， 可以由网络运营商运营， 还用于获取数据库中主系统频谱 使用情况信息等。
进一步地， 所述重配模块， 位于网管侧或核心网侧的节点， 具体用于 与所述策略控制中心进行信息交互、 或对各无线通信系统网络状况的监测， 获取频谱调整指示、 频谱使用情况信息； 并根据获取的信息， 运行重配算 法， 得出重配命令； 具体地， 重配模块负责接收和分析策略控制中心发送 的频谱调整指示， 接收网络侧的其他委托触发过程， 运行新功能和新 RAT 激活的自优化过程及重配算法； 还用于运行重配算法后监测所支持 RAT的 小区活动状态， 通过执行重配算法确定要重配的 RBS和发送合适的重配指 令来控制重配； 还可以借助移动终端（ Mobile Device, MD )上 4艮的结果来 评估网络重配和 RBS资源重配的需求；
这里， 重配命令可以包括对于现有 RAT的功能增强信息、 软件版本信 息、 新 RAT的频谱信息、 新功能或新 RAT的生效时间、新功能的增强范围 等信息。
其中， 所述频谱使用情况信息为各无线通信系统对自身授权频谱及借 用频谱的使用情况、 主系统频谱使用情况的信息； 具体包括： 频点、 工作 带宽、 空闲频谱的持续时间、 发射参数要求的一种或多种；
所述重配算法包括：频谱资源重新调整、现有 RAT升级或布局新 RAT、 增加多标准增加模式、 无线资源优化、 次级系统对主系统频谱借用的一种 或多种。
这里， 所述系统进一步包括： RRM; 其中， 在 GSM/UMTS 系统中， 所述 RRM既可以位于基站控制器（ Base Station Controller, BSC ) /无线网 络控制器（Radio Network Controller, RNC ) 中， 也可以位于 RBS中； 在 LTE系统中， 所述 RRM可以位于 RBS中；
所述重配模块， 还用于将所述重配命令发送至 RRM;
所述 RRM, 用于接收到所述重配命令后， 控制基站执行重配； 这里， RRM还用于接收 RBS的信道请求， 进行 RBS信道分配评估； 管理 MD的 无线信道的请求和分配； 指示软件版本下载升级； 监测小区的负荷状况； 指示 RBS的重分配， 并评估重分配后的影响， 如干扰容限等， 并向重配模 块指示资源分配情况。
这里， 所述基站（RBS1或 RBS2 ), 用于在重配完成后， 回复重配完成 消息给所述 RRM; 具体， RBS可以支持 RAT间的转换， 如 GSM— UMTS, UMTS— LTE等等； 还用于管理配置每一个支持的 RAT中激活的无线资源 ( Radio Resource, RR )的利用率， 动态地管理现存系统和下一代系统的硬 件资源； 配置分配一个或多个模式下时分双工（ TDD )和频分双工（ FDD ) 的激活的 RR的利用率； 动态容量优化， 如节能、 负荷均衡等； 从网络侧下 载进行新功能升级， 如 UMTS— HSPA+; 给用户终端提供无线资源管理和 服务等等。
所述 RRM, 还用于将接收的重配完成消息转发给所述重配模块； 所述重配模块， 还用于通过对各无线通信系统网络状况的监测， 获取 基站按照重配命令执行重配后的网络侧性能信息， 并根据获取的信息， 进 行重配调整。
图 3示出了实现本发明认知无线电系统资源重配的方法的 LTE系统结 构， 如图 3所示 , RRM位于 RBS内 , 重配模块位于网管侧 /核心网侧网元； 下面结合图 3对 LTE系统内部实现上述方法的过程进行详细说明。
步驟一， 重配模块收集网络侧上报的信息、 接收策略控制中心下发的 频谱调整指示；
具体地， 当网络侧上报的信息指示当前某小区负载严重， 则重配模块 需要根据该小区周围小区的负载情况、 频谱利用情况等判断是否需要运行 重配算法； 当所述策略控制中心根据网络规划的时间进度把当前 LTE使用 的某一频段调整为更高级系统的频谱， 则向重配模块发送频谱调整指示。
这里， 所述频谱调整指示包括频率资源的重配调整指示、 LTE 系统当 前使用的某段频谱、 生效时间 （如该段频谱可以使用的时间段）、 区域范围 等。
步驟二， 重配模块分析获取的信息，运行重配算法， 向 RBS内的 RRM 发送重配命令；
所述重配命令包括： 要被重整的频谱信息、 生效时间、 区域范围、 对 邻近频带的干扰容限、 切换命令等。
步驟三， RBS内的 RRM接收到来自重配模块的重配命令后，评估资源 重新分配后对网络侧的影响， 执行重配命令。
步驟四， RBS接收到重配命令后， 按照 RRM的指示， 在生效时间段进 行资源重配。
步驟五， RBS完成资源重配后， RBS内的 RRM给重配模块回复重配 完成消息。
图 4示出了实现本发明认知无线电系统资源重配的方法的 GSM/UMTS 系统结构， 如图 4所示， RRM位于 RBS内， 重配模块位于网管侧 /核心网 侧网元； 下面结合图 4对 GSM/UMTS系统内部资源优化、 及 GSM重配为 UMTS的过程进行详细说明。
步驟一， 重配模块收集网络侧上报的信息、 接收策略控制中心下发的 频谱调整指示；
具体地，当网络侧上报的信息中指示当前某 GSM/UMTS系统小区负载 严重， 重配模块需要根据其周围小区的负载状况、 频谱利用情况判断是否 需要运行重配算法； 当所述策略控制中心根据网络规划的时间进度把当前 GSM使用的某一频段调整为 UMTS的频谱，则向重配模块发送频谱调整指 示。
这里， 所述频谱调整指示包括： 频率资源的重配调整指示、 GSM当前 使用的某段频谱、生效时间（如该段频谱可以使用的时间段）、 区域范围等。
步驟二， 重配模块分析收到的信息， 运行重配算法， 并向 BSC/RNC发 送重配命令， 并由 BSC/RNC透传给 RBS内的 RRM;
所述重配命令包括： 要被重整的频谱信息、 生效时间、 区域范围、 对 邻近频带的干扰容限、 切换命令等。
步驟三， RRM接收到来自重配模块的重配命令后， 评估资源重新分配 后对网络侧的影响， 执行重配命令。 步驟四， RBS接收到重配指令后， 按照 RRM的指示， 在生效时间段进 行资源重配。
步驟五， RBS完成资源重配后， RBS内的 RRM给 BSC/RNC回复重配 完成消息， BSC/RNC透传给重配模块， 以确认重配的完成。
重配完成后， 原 GSM的 BSC作为 UMTS的 RNC使用。
进一步地， 该流程也适用于相反的过程， 即由于网络规划将 UMTS重 配为 GSM; 此时， 完成重配后， 原 UMTS的 RNC作为 GSM的 BSC使用。
图 5示出了实现本发明认知无线电系统资源重配的方法的 GSM/UMTS 系统另一结构， 如图 5所示， RRM位于 BSC/RNC内， 重配模块位于网管 侧 /核心网侧网元；下面结合图 5对 GSM/UMTS系统内部资源优化、及 GSM 重配为 UMTS的过程进行详细说明。
步驟一， 重配模块收集网络侧上报的信息、 接收策略控制中心下发的 频谱调整指示；
具体地，当网络侧上报的信息中指示当前某 GSM/UMTS系统小区负载 严重， 重配模块需要根据其周围小区的负载状况、 频谱利用情况判断是否 需要运行重配算法； 当所述策略控制中心根据网络规划的时间进度把当前 GSM使用的某一频段调整为 UMTS的频谱，向重配模块发送频谱调整指示。
这里， 所述频谱调整指示包括： 频率资源的重配调整指示、 GSM当前 使用的某段频谱、生效时间（如该段频谱可以使用的时间段）、 区域范围等。
步驟二， 重配模块分析收到的信息， 运行重配算法， 并向 BSC/RNC内 的 RRM发送重配命令；
所述重配命令包括： 要被重整的频谱信息、 生效时间、 区域范围、 对 邻近频带的干扰容限、 切换命令等。
步驟三， RRM接收到来自重配模块的重配命令后， 评估资源重新分配 后对网络侧的影响， 控制 RBS执行重配命令。 步驟四， RBS接收到重配命令后， 按照 RRM的指示， 在生效时间段进 行资源重配。
步驟五， RBS完成资源重配后， 给 BSC/RNC内的 RRM回复重配完成 消息， RRM转发给重配模块， 以确认重配的完成。
重配完成后， 原 GSM的 BSC作为 UMTS的 RNC使用。
进一步地， 该流程也适用于相反的过程， 即由于网络规划将 UMTS重 配为 GSM; 此时， 完成重配后， 原 UMTS的 RNC作为 GSM的 BSC使用。
图 6示出了实现本发明借用主系统（如广播电视系统）频谱资源重配 的 LTE系统结构， 如图 6所示， RRM位于 RBS内， 重配模块位于网管侧 / 核心网侧网元； 下面结合图 6对 LTE系统借用广播电视系统空白频谱资源 ( TV White Spaces, TVWS ) 的过程进行详细说明。
步驟一， 重配模块收集网络侧上报的信息、 接收策略控制中心下发的 频谱调整指示；
具体地， 当网络侧上报的信息中指示当前某小区负载严重， 重配模块 需要根据在策略控制中心获取到的 TVWS使用情况信息， 判断是否可以借 用 TVWS频谱资源； 其中， 策略控制中心通过与数据库信息交互获取主系 统频谱资源的使用情况信息；
这里， 所述 TVWS使用情况信息包括： 未使用的频谱状态； 具体可以 为频点、 工作带宽、 覆盖范围、 可能的持续时间、 允许最大发射功率等。
步驟二，重配模块分析收到的信息，运行重配算法，并向 RBS内的 RRM 发送重配命令；
所述重配命令包括： TVWS 频点、 工作带宽、 覆盖范围、 可能的持续 时间、 允许最大发射功率等。
步驟三， RRM接收到来自重配模块的重配命令后， 执行重配命令， 将 部分 LTE授权频谱上的业务切换到 TVWS上。 步驟四， RBS接收到重配命令后， 按照 RRM的指示， 在规定时间段进 行重配。
步驟五： RBS完成资源重配后， RBS内的 RRM给重配模块回复重配 完成消息， 以确认重配完成， 重配模块反馈重配结果给策略控制中心。
图 7示出了实现本发明借用主系统（如广播电视系统）频谱资源重配 的 GSM/UMTS系统结构， 如图 7所示， RRM位于 RBS内， 重配模块位于 网管侧 /核心网侧网元； 图 7所示的 GSM/UMTS系统借用 TVWS的具体过 程与图 6所示的 LTE系统借用 TVWS的过程类似，不同点在于， GSM/UMTS 系统的网络侧存在独立的 BSC/RNC, 因此， 所述 BSC/RNC 在实现借用 TVWS的过程中， 主要用于透传重配模块与 RBS/RRM之间的消息。
图 8示出了实现本发明借用主系统频谱资源重配的 GSM/UMTS系统另 一结构， 如图 8所示， RRM位于 BSC/RNC内， 重配模块位于网管侧 /核心 网侧网元； 下面结合图 8对 GSM/UMTS系统借用 TVWS的过程进行详细 说明， 应当理解， 该过程与图 7所示的 GSM/UMTS系统借用 TVWS的过 程不同， 是因为图 8所示的 RRM位于 BSC/RNC内， 此时， BSC/RNC并 不仅仅是透传消息的作用。
步驟一， 重配模块收集网络侧上报的信息、 接收策略控制中心下发的 频谱调整指示信息；
具体地， 当网络侧上报的信息中指示当前某小区负载严重， 重配模块 需要根据在策略控制中心获取到的 TVWS使用情况信息， 判断是否可以借 用 TVWS; 其中， 策略控制中心通过与数据库信息交互获取主系统频谱资 源的使用情况信息；
这里， 所述 TVWS使用情况信息包括： 未使用的频谱状态； 具体可以 为频点、 工作带宽、 覆盖范围、 可能的持续时间、 允许最大发射功率等。
步驟二， 重配模块分析收到的信息， 运行重配算法， 并向 BSC/RNC内 的 RRM发送重配命令；
所述重配命令包括： TVWS 频点、 工作带宽、 覆盖范围、 可能的持续 时间、 允许最大发射功率等。
步驟三， RRM接收到来自重配模块的重配命令后，控制 RBS执行重配 命令， 将部分 GSM/UMTS系统授权频谱上的业务切换到 TVWS上。
步驟四， RBS接收到重配指令后， 按照 RRM的指示， 在规定时间段进 行重配。
步驟五， RBS完成资源重配后， 向 BSC/RNC内的 RRM回复重配完成 消息， RRM将重配完成消息转发给重配模块， 以确认重配完成， 重配模块 反馈重配结果给策略控制中心。
图 9示出了实现本发明认知无线电系统资源重配的方法的 LTE系统与 GSM/UMTS 系统混合网络的结构， 如图 9 所示， RBS 包括 LTE 系统和 GSM/UMTS 系统的 RBS ; 对于 LTE 系统， RRM 位于 RBS 内， 对于 GSM/UMTS 系统， RRM位于 BSC/RNC内； 重配模块统一位于网管侧 /核 心网侧网元； 下面结合图 9,对 LTE系统与 GSM/UMTS系统混合网络实现 本发明资源重配的过程进行详细说明。
步驟一， 各自系统的 RRM监测各自网络的运行状况， 当监测到当前业 务较多、 负荷重等情况时， 上报到重配模块；
步驟二， 重配模块根据获取到的各系统信息， 运行重配算法， 得出重 配命令；
这里， 重配模块所获取到的信息包括： 来自各 RBS的频谱使用情况信 息、 负载状况信息、 重配请求信息、 以及来自策略控制中心的频谱调整指 示、 空闲频谱资源信息等。
步驟三， 重配模块将重配命令发送给下属网元；
本实施例中， 所有有关于 LTE系统重配的重配命令， 都将发送给对应 LTE的 RBS,由 RBS内的 RRM控制 LTE系统网元进行资源重配， BSC/RNC 对于这些消息只起到透传的作用；所有有关于 GSM/UMTS系统重配的重配 命令， 都将发送给对应的 BSC/RNC中的 RRM, 由其控制 GSM/UMTS系 统网元进行重配。
进一步地， 如涉及到 GSM/UMTS 系统重配为 LTE 系统， 重配由 BSC/RNC内的 RRM控制 , 完成重配后 , LTE系统的 RBS内的 RRM起作 用，而对于由 GSM/UMTS系统重配为 LTE系统的 RBS所对应的 BSC/RNC, 对所述 RBS只透传相关系统消息。而如果是由 LTE系统重配为 GSM/UMTS 系统 ,重配完成后 ,相应 RBS由 BSC/RNC内的 RRM控制 ,所述 RBS( LTE ) 内的 RRM不再起作用。
图 10示出了实现本发明认知无线电系统资源重配的方法的 LTE系统与 GSM/UMTS 系统混合网络的结构， 如图 10所示， RBS 包括 LTE 系统和 GSM/UMTS系统的 RBS; 对于 LTE/GSM/UMTS系统， RRM均位于 RBS 内； 重配模块统一位于网管侧 /核心网侧网元； 下面结合图 10, 对 LTE系统 与 GSM/UMTS系统混合网络实现本发明资源重配的过程进行详细说明。
步驟一， 各自系统的 RRM监测各自网络的运行状况， 当监测到当前业 务较多、 负荷重等情况时， 上报到重配模块；
步驟二， 重配模块根据获取到的各系统信息， 运行重配算法， 得出重 配命令；
这里， 重配模块所获取到的信息包括： 来自各 RBS的频谱使用情况信 息、 负载状况信息、 重配请求信息、 以及来自策略控制中心的频谱调整指 示、 空闲频谱资源信息等。
步驟三， 重配模块将重配命令发送给下属网元；
本实施例中， 所有重配的决策， 都将发送给各自 RBS内的 RRM, 由其 控制系统相关网元进行资源重配。 以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围。

Claims

权利要求书
1、 一种认知无线电系统资源重配的方法， 其中， 所述方法包括： 位于网络侧节点的重配模块根据接收到的频谱调整指示或自身对各无 线通信系统网络状况的监测， 运行重配算法， 得出重配命令；
将所述重配命令发送至基站， 通过基站执行所述重配命令， 实现资源 重配。
2、 根据权利要求 1所述的方法， 其中， 所述方法还包括：
策略控制中心根据运营商的网络整体规划和时间进度、 或通过与数据 库信息交互获得可用的频谱资源后， 生成频谱调整指示； 其中， 所述频谱 调整指示包括频谱资源的重新调整指示、 无线接入技术 RAT的增加、 或现 有 RAT功能的增强。
3、 根据权利要求 1所述的方法， 其中， 所述位于网络侧节点的重配模 块为：
不同无线通信系统共同的重配模块， 所述网络侧节点为核心网侧的网 络节点或网管侧的网络节点。
4、 根据权利要求 3所述的方法， 其中， 所述不同无线通信系统包括： 全球移动通讯系统 GSM、 通用移动通信系统 UMTS、 长期演进 LTE系统 / 长期演进高级 LTE-A系统。
5、 根据权利要求 1所述的方法， 其中， 所述位于网络侧节点的重配模 块运行重配算法， 得出重配命令为：
位于网管侧或核心网侧节点的重配模块通过与策略控制中心进行信息 交互、 或通过对各无线通信系统网络状况的监测， 获取频谱调整指示、 频 谱使用情况信息、 负载状态信息；
重配模块分析获取的信息， 运行重配算法， 得出重配命令。
6、 根据权利要求 5所述的方法， 其中， 所述频谱使用情况信息为各无 线通信系统对自身授权频谱及借用频谱的使用情况、 主系统频谱使用情况 的信息， 包括频点、 工作带宽、 空闲频谱的持续时间、 发射参数要求的一 种或多种；
所述重配算法包括频谱资源重新调整、 现有 RAT升级或布局新 RAT、 增加多标准增加模式、 无线资源优化、 次级系统对主系统频谱借用的一种 或多种。
7、 根据权利要求 1所述的方法， 其中， 所述将重配命令发送至基站， 通过基站执行所述重配命令， 实现资源重配为：
重配模块将所述重配命令发送给无线资源管理器 RRM；
RRM根据接收到的重配命令， 控制基站执行重配。
8、 根据权利要求 7所述的方法， 其中， 在通过基站执行所述重配命令 之后， 所述方法还包括：
基站在重配完成后， 回复重配完成消息给所述 RRM;
RRM将接收的重配完成消息转发给所述重配模块；
重配模块通过对各无线通信系统网络状况的监测， 获取基站按照重配 命令执行重配后的网络侧性能信息， 并根据获取的信息， 进行重配调整。
9、 一种认知无线电系统资源重配的系统， 包括基站， 其中， 所述系统 还包括： 位于网络侧节点的重配模块； 其中，
所述重配模块， 用于根据接收到的频谱调整指示或对各无线通信系统 网络状态的监测， 运行重配算法， 得出重配命令； 并将所述重配命令发送 至基站， 通过基站执行所述重配命令， 实现资源重配。
10、 根据权利要求 9所述的系统， 其中， 所述系统还包括： 数据库、 策略控制中心； 其中，
所述数据库， 用于提供主系统频谱状态信息、 重配模块对主系统空闲 频谱的使用信息； 所述策略控制中心， 用于根据运营商的网络整体规划和时间进度、 或 通过与所述数据库信息交互获得可用的频谱资源后， 生成频谱调整指示； 其中，所述频谱调整指示包括频谱资源的重新调整指示、无线接入技术 RAT 的增加、 或现有 RAT功能的增强。
11、 根据权利要求 9所述的系统， 其中， 所述位于网络侧节点的重配 模块为不同无线通信系统共同的重配模块； 所述网络侧节点为核心网侧的 网络节点或网管侧的网络节点。
12、根据权利要求 11所述的系统， 其中， 所述不同无线通信系统包括： 全球移动通讯系统 GSM、 通用移动通信系统 UMTS、 长期演进 LTE系统 / 长期演进高级 LTE-A系统。
13、 根据权利要求 10所述的系统， 其中， 所述重配模块， 位于网管侧 或核心网侧节点， 用于与所述策略控制中心进行信息交互， 获取频谱调整 指示， 或通过对各无线通信系统网络状况的监测， 获取频谱使用情况信息、 负载状态信息； 并根据获取的信息， 运行重配算法， 得出重配命令；
其中， 所述频谱使用情况信息为各无线通信系统对自身授权频谱及借 用频谱的使用情况、 主系统频谱使用情况的信息， 包括频点、 工作带宽、 空闲频谱的持续时间、 发射参数要求的一种或多种；
所述重配算法包括频谱资源重新调整、 现有 RAT升级或布局新 RAT、 增加多标准增加模式、 无线资源优化、 次级系统对主系统频谱借用的一种 或多种。
14、 根据权利要求 9所述的系统， 其中， 所述系统进一步包括： RRM; 其中，
所述重配模块， 还用于将所述重配命令发送至 RRM;
所述 RRM, 用于根据接收到的重配命令， 控制基站执行重配。
15、 根据权利要求 14 所述的系统， 其中， 所述基站， 为可重配基站 RBS, 用于在重配完成后， 回复重配完成消息给所述 RRM; 所述 RRM, 还用于将接收的重配完成消息转发给所述重配模块； 所述重配模块， 还用于通过对各无线通信系统网络状况的监测， 获取 基站按照重配命令执行重配后的网络侧性能信息， 并根据获取的信息， 进 行重配调整。
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