WO2015109841A1 - 认知无线电系统频谱资源配置方法和装置 - Google Patents

认知无线电系统频谱资源配置方法和装置 Download PDF

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Publication number
WO2015109841A1
WO2015109841A1 PCT/CN2014/085126 CN2014085126W WO2015109841A1 WO 2015109841 A1 WO2015109841 A1 WO 2015109841A1 CN 2014085126 W CN2014085126 W CN 2014085126W WO 2015109841 A1 WO2015109841 A1 WO 2015109841A1
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Prior art keywords
idle spectrum
idle
user equipment
information
secondary user
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English (en)
French (fr)
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刘星
李岩
王斌
任龙涛
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ZTE Corp
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ZTE Corp
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Priority to EP14879627.9A priority Critical patent/EP3089500A4/en
Priority to US15/113,445 priority patent/US9854447B2/en
Publication of WO2015109841A1 publication Critical patent/WO2015109841A1/zh
Anticipated expiration legal-status Critical
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    • 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
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/16—Threshold monitoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0073—Allocation arrangements that take into account other cell interferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/563—Allocation or scheduling criteria for wireless resources based on priority criteria of the wireless resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a cognitive radio system spectrum configuration method and apparatus.
  • IMT International Mobile Telecom
  • the system shows unprecedented spectrum tensions.
  • spectrum resources such as the spectrum of some broadcast TV systems in certain regions. Not used; Some broadcast TV system spectrums are covered in some areas, but they are not used at certain times, and the overall utilization rate is low.
  • the fixed spectrum allocation method makes the above unused spectrum resources unable to be reused, for example, cannot be used by the IMT system.
  • IMT Through the cognitive radio technology IMT system, through the acquisition of information of the broadcast television system, opportunistically occupy the spectrum resources (TVWS, TV White Space) of the radio and television system in space and time, thereby improving the utilization rate of the spectrum of the broadcast television system and improving The situation of the system spectrum is tight.
  • Similar technologies include: Unlicensed frequency sharing technology, typically such as TVWS band CR technology; and License Shared Access (LSA) technology.
  • the above two secondary systems are required to share or authorize the spectrum usage of the spectrum resources of the primary system, and must ensure effective protection for the primary user, that is, when the secondary system uses the primary system spectrum resources, it cannot cause harmful interference to the primary system user. It is a prerequisite for cognitive radio technology to be realized.
  • the spectrum and transmission parameters of the secondary system will be limited by the protection requirements of the primary system, and accurate decisions need to be made when initially determining these parameters;
  • the secondary system needs to know the presence of the primary user in time, so as to promptly exit the spectrum resource when the primary user on the spectrum resource occupied by the secondary system reappears, to avoid interference with the primary user.
  • the spectrum resource reconfiguration decision needs to consider the coexistence requirements of the above two aspects to complete the configuration decision of the spectrum resource, which is a crucial step in the CR technology. Moreover, due to factors such as the occurrence of the primary user and the change of the interference relationship between the secondary users, the configuration of the spectrum resources may need to be frequently changed. Therefore, the spectrum resource reconfiguration decision also needs to be performed frequently. In the related art, each spectrum resource reconfiguration needs to make a re-decision, and the experience data is not reconfigured by using the existing spectrum resources. Such a spectrum resource reconfiguration process involves the acquisition and processing of related information. A series of operations such as configuration parameters are calculated, which will cause the system to consume relatively large processing overhead, configuration delay, and related signaling interaction overhead. In addition, the reconfiguration decision made may not be able to achieve the secondary user reconfiguration goal because it has not been verified by the actual configuration, or the reconfiguration decision scheme needs to be further modified according to the actual configuration effect. This will affect the stability of the secondary system.
  • the invention provides a method and a device for configuring a spectrum resource of a cognitive radio system, which solves the problem that the existing resource allocation mode affects the stability of the system.
  • a method for configuring a spectrum resource of a cognitive radio system comprising:
  • the reconfiguration management node receives the idle spectrum resource request information sent by the secondary user equipment, where the idle spectrum resource request information indicates the secondary user equipment needs for the idle spectrum resource; the reconfiguration management node is according to the secondary user Device idle spectrum resource history configuration letter And the current idle spectrum resource situation information, and the idle spectrum resource configuration decision is performed on the secondary user equipment.
  • the idle spectrum resource request information includes any one or any of the following information: idle spectrum request indication information, idle frequency request cause information, and idle spectrum configuration target information.
  • the idle spectrum request indication information includes any one or any of the following information: a secondary user equipment location, a device type, a device parameter, a requirement for an idle spectrum frequency, and a requirement for an idle spectrum bandwidth, The need for idle spectrum idle duration, the need for idle frequency transmit power,
  • the device parameters include one or more of the following information: transmitter transmission template, adjacent channel leakage ratio ACLR, transmission gain, antenna height, antenna direction angle, pitch angle, downtilt angle, polarization mode.
  • the idle spectrum request cause information indicates a reason for triggering the secondary user equipment to perform the idle frequency request, including any one or any of the following contents: network load overload, coverage is not up to expectations, handover coverage, communication interference Above the preset threshold, the service signal receiving power is lower than the preset threshold, the SINR is lower than the preset threshold, and the network performance parameter is not up to the requirement.
  • the network performance parameter fails to meet any one or any of the following information: the throughput is lower than a preset threshold, the transmission rate is lower than a preset threshold, a bit error rate, and/or a block error rate and/or The call rate is higher than the preset threshold, the RRC connection establishment success rate and/or the E-RAB connection establishment success rate is lower than the preset threshold, the E-RAB establishes the blocking rate higher than the preset threshold, and the switching success rate is lower than the preset threshold.
  • the idle spectrum configuration target information indicates a performance indicator that is reached by the network after the secondary user equipment desires to configure the idle frequency, and includes any one or any of the following contents: the spectrum resource meets the network load requirement, and the coverage meets the requirement.
  • the communication link interference is lower than the preset threshold, the service signal receiving power meets the minimum receiving threshold requirement, the SINR is higher than the preset threshold, and the network performance parameter meets the requirement.
  • the current idle spectrum resource situation information indicates the primary system idle spectrum situation information at the current secondary user equipment location and the interference situation information on the idle spectrum.
  • the method further includes: the reconfiguration management node acquiring idle spectrum resource history configuration information of the secondary user equipment, where the idle spectrum resource history configuration information refers to the secondary usage The historical usage information of the idle spectrum resource of the primary system and the network performance information achieved by using the idle spectrum resource.
  • the method further includes: the idle spectrum resource history configuration information, after the secondary user equipment completes the configuration of the idle spectrum resource, by the measurement of the secondary user equipment itself, or the network management system of the secondary system to which the secondary user equipment belongs Performance statistics are obtained and sent by the secondary user equipment or network management system to the reconfiguration management node;
  • the idle spectrum resource history configuration information includes any one or any of the following information: configuring a frequency of the idle spectrum, configuring a bandwidth of the idle spectrum, a location of the secondary user equipment, an identifier of the secondary user equipment, and a secondary user.
  • the network performance information includes any one or any of the following information: throughput of the idle spectrum cell, transmission rate, bit error rate, block error rate, coverage rate, RRC connection establishment success rate, E-RAB establishment success rate , E-RAB establishes blocking rate, dropped call rate, and switching success rate.
  • the reconfiguration management node performs the idle spectrum resource configuration decision on the secondary user equipment according to the idle spectrum resource history configuration information and the current idle spectrum resource situation information of the secondary user equipment, including:
  • Obtaining information about the idle spectrum of the primary system obtained from a database that stores the usage of the spectrum resources of the primary system or by measurement reporting of the secondary user equipment;
  • the idle spectrum resources are prioritized according to the performance level that can be achieved in the historical configuration, and the idle spectrum resources are selected for the secondary user equipment.
  • the reconfiguration management node performs idle frequency on the secondary user equipment according to idle spectrum resource history configuration information and current idle spectrum resource situation information of the secondary user equipment. After the steps of the spectrum resource configuration decision, it also includes:
  • the reconfiguration management node sends a result of the idle spectrum resource configuration decision of the secondary user equipment to the secondary user equipment, and the result of the idle spectrum reconfiguration decision includes any one or any of the following information : Configured frequency, bandwidth, configuration time, maximum allowed transmit power.
  • the present invention also provides a cognitive radio system spectrum resource configuration apparatus, including: a request receiving module, configured to: receive idle spectrum resource request information sent by a secondary user equipment, where the idle spectrum resource request information indicates the secondary User equipment requirements for idle spectrum resources;
  • the configuration decision module is configured to: perform idle spectrum resource configuration decision on the secondary user equipment according to the idle spectrum resource history configuration information and the current idle spectrum resource situation information of the secondary user equipment.
  • the device further comprises:
  • the historical information obtaining module is configured to: obtain the idle spectrum resource history configuration information of the secondary user equipment, where the idle spectrum resource history configuration information refers to the historical usage information and use of the secondary user equipment to the primary system idle spectrum resource Network performance information achieved by idle spectrum resources.
  • the configuration decision module includes:
  • the main system idle spectrum condition acquisition unit is configured to: obtain the idle system spectrum information of the primary system from a database that saves the spectrum resource usage of the primary system or by using a measurement report of the secondary user equipment;
  • the demand conversion unit is configured to: convert the idle spectrum request cause information and/or the idle spectrum configuration target information into performance requirements of the secondary user equipment for the idle spectrum;
  • a resource selection unit configured to: select, according to a performance that the secondary user equipment can achieve in a historical configuration of the idle spectrum resource, select, for the secondary user equipment, the idle spectrum resource that meets the performance requirement in the idle spectrum list, or ,
  • the idle spectrum resources are prioritized according to the performance level that can be achieved in the historical configuration, and the idle spectrum resources are selected for the secondary user equipment.
  • the device further includes: a configuration decision sending module, configured to: send a result of the idle spectrum resource configuration decision of the secondary user equipment to the secondary user equipment, the idle frequency
  • the results of the spectral reconfiguration decision include any or any of the following information: Configured frequency, bandwidth, configuration time, maximum allowed transmit power.
  • An embodiment of the present invention provides a method and an apparatus for configuring a spectrum resource of a cognitive radio system, where a reconfiguration management node receives idle spectrum resource request information sent by a secondary user equipment, and the idle spectrum resource request information indicates the secondary user equipment. For the requirement of the idle spectrum resource, the reconfiguration management node performs the idle spectrum resource configuration decision on the secondary user equipment according to the idle spectrum resource history configuration information and the current idle spectrum resource situation information of the secondary user equipment. A more efficient idle spectrum resource allocation decision based on historical data is implemented, which solves the problem that existing resource allocation methods affect system stability. BRIEF abstract
  • Figure 1 is a schematic diagram of the protection of the main system
  • Figure 2 is a schematic diagram of the coexistence of interference between secondary systems
  • FIG. 3 is a flowchart of a method for configuring a spectrum resource of a cognitive radio system according to an embodiment of the present invention
  • Figure 4 is a schematic diagram of the architecture of the CRWS band CR technology system
  • FIG. 5 is a schematic flowchart diagram of a method for configuring a spectrum resource of a cognitive radio system according to Embodiments 1 and 2 of the present invention
  • FIG. 6 is a schematic flowchart diagram of a method for configuring a spectrum resource of a cognitive radio system according to Embodiments 3 and 4 of the present invention
  • FIG. 7 is a schematic flowchart of a method for configuring a spectrum resource of a cognitive radio system according to Embodiment 5 of the present invention.
  • FIG. 8 is a schematic structural diagram of a spectrum resource configuration apparatus for a cognitive radio system according to Embodiment 6 of the present invention.
  • FIG. 9 is a schematic structural diagram of the configuration decision module 802 of FIG. 8.
  • each spectrum resource reconfiguration needs to make a re-decision, and the experience data is not reconfigured by using the existing spectrum resources.
  • a spectrum resource reconfiguration process involves the acquisition and processing of related information. A series of operations such as configuration parameters are calculated, which will cause the system to consume relatively large processing overhead, configuration delay, and related signaling interaction overhead.
  • the reconfiguration decision made may not be able to achieve the secondary user reconfiguration goal because it has not been verified by the actual configuration, or the reconfiguration decision scheme may be further modified according to the actual configuration effect. This will affect the stability of the secondary system.
  • embodiments of the present invention provide a method and apparatus for configuring a spectrum resource of a cognitive radio system.
  • Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.
  • FIG. 3 The technical solution provided by the embodiment of the present invention is as shown in FIG. 3, and includes:
  • Step 301 The reconfiguration management node acquires the idle spectrum resource history configuration information of the secondary user equipment, where the idle spectrum resource history configuration information refers to the historical usage information of the secondary user equipment to the primary system idle spectrum resource, and the idle usage information.
  • the network performance information obtained by the spectrum resource specifically, the idle spectrum resource history configuration information is measured by the secondary user equipment itself after the secondary user equipment completes the configuration of the idle spectrum resource, or the secondary system to which the secondary user equipment belongs
  • the performance statistics of the network management system are obtained and sent by the secondary user equipment or the network management system to the reconfiguration management node;
  • the idle spectrum resource history configuration information includes any one or any of the following information: configuring a frequency of the idle spectrum, configuring a bandwidth of the idle spectrum, a location of the secondary user equipment, an identifier of the secondary user equipment, and a secondary user.
  • the network performance information includes any one or any of the following information: throughput of the idle spectrum cell, transmission rate, bit error rate, block error rate, coverage rate, RRC connection establishment success rate, E-RAB establishment success rate , E-RAB establishes blocking rate, dropped call rate, and switching success rate.
  • Step 302 The reconfiguration management node receives the idle spectrum resource request sent by the secondary user equipment.
  • Information, the idle spectrum resource request information indicates a requirement of the secondary user equipment for idle spectrum resources;
  • the idle spectrum resource request information includes any one or any of the following information: idle spectrum request indication information, idle frequency request cause information, and idle spectrum configuration target information.
  • the idle frequency request indication information includes any one or any of the following information: secondary user equipment location, device type, device parameter, demand for idle spectrum frequency, demand for idle spectrum bandwidth, and idle spectrum
  • secondary user equipment location includes any one or any of the following information: secondary user equipment location, device type, device parameter, demand for idle spectrum frequency, demand for idle spectrum bandwidth, and idle spectrum
  • device type includes any one or any of the following information: secondary user equipment location, device type, device parameter, demand for idle spectrum frequency, demand for idle spectrum bandwidth, and idle spectrum
  • the need for idle time, the need for idle frequency transmit power includes any one or any of the following information: secondary user equipment location, device type, device parameter, demand for idle spectrum frequency, demand for idle spectrum bandwidth, and idle spectrum The need for idle time, the need for idle frequency transmit power,
  • the device parameters include one or more of the following information: transmitter transmission template, adjacent channel leakage ratio ACLR, transmission gain, antenna height, antenna direction angle, pitch angle, downtilt angle, polarization mode.
  • the idle frequency request cause information indicates a reason for triggering the secondary user equipment to perform the idle frequency request, including any one or any of the following contents: the network load is overloaded, the coverage is not up to expectations, the coverage is exceeded, and the communication interference is higher than The preset threshold, the service signal receiving power is lower than the preset threshold, the SINR is lower than the preset threshold, and the network performance parameter is not up to the requirement;
  • the network performance parameters fail to meet any one or any of the following information:
  • the throughput is lower than the preset threshold, the transmission rate is lower than the preset threshold, the bit error rate and/or the block error rate and/or the call drop rate are higher than the pre-predetermined threshold.
  • the threshold is set, the RRC connection establishment success rate and/or the E-RAB connection establishment success rate is lower than the preset threshold, the E-RAB establishes the blocking rate higher than the preset threshold, and the switching success rate is lower than the preset threshold.
  • the idle spectrum configuration target information indicates a performance indicator that the network reaches after the secondary user equipment desires to configure the idle frequency, and includes any one or any of the following contents: the spectrum resource satisfies the network load requirement, and the coverage meets the requirement, and the communication link
  • the interference is lower than the preset threshold, the service signal receiving power meets the minimum receiving threshold requirement, the SINR is higher than the preset threshold, and the network performance parameter meets the requirement.
  • Step 303 The reconfiguration management node performs an idle spectrum resource configuration decision on the secondary user equipment according to the idle spectrum resource history configuration information and the current idle spectrum resource situation information of the secondary user equipment.
  • the current idle spectrum resource situation information indicates the primary system idle spectrum situation information at the current secondary user equipment location and the interference situation information on the idle spectrum.
  • the step of the method includes: acquiring, by using a database that saves the spectrum resource usage of the primary system, or obtaining the idle spectrum information of the primary system by using a measurement report of the secondary user equipment;
  • the idle spectrum resources are prioritized according to the performance level that can be achieved in the historical configuration, and the idle spectrum resources are selected for the secondary user equipment.
  • Step 304 The reconfiguration management node sends a result of the idle spectrum resource configuration decision of the secondary user equipment to the secondary user equipment, and the result of the idle spectrum reconfiguration decision includes any one of the following information or Any number of:
  • the reconfiguration management node refers to a functional entity responsible for the reconfiguration management of the secondary system spectrum resources, and may be any one of the following functional entities: a spectrum coordinator (SC), a central control node (CCP, Central Control Point), Reconfiguration Management Module, Reconfiguration Function Module, Reconfiguration Entity, Advanced Positioning Entity, Advanced Positioning, Coexistence.
  • SC spectrum coordinator
  • CCP central control node
  • Reconfiguration Management Module Reconfiguration Function Module
  • Reconfiguration Entity Reconfiguration Entity
  • Advanced Positioning Entity Advanced Positioning Entity
  • Coexistence Coexistence.
  • a typical primary system idle frequency resource such as the TVWS spectrum
  • the TVWS spectrum is taken as an example for description.
  • the main user protection management node takes GLDB as an example, and the reconfiguration management node where the inter-system interference coexists takes SC as an example.
  • the architecture of the TVWS band CR technology is shown in Figure 4 and is described below.
  • the GLDB is responsible for primary system protection, providing primary system frequency usage for secondary user equipment or secondary system management nodes, to avoid interference of the primary system with secondary systems.
  • the secondary user equipment is provided with idle spectrum resources at its location, and the maximum transmit power allowed by the secondary user equipment is calculated according to the primary user protection criterion;
  • the SC is a secondary system spectrum resource reconfiguration management node, which is responsible for coexistence management, priority management, and measurement management among each secondary user equipment.
  • the BS is a secondary user equipment, which can represent a base station under a cellular network system such as an LTE, a 3G system, a 2G system, or an access point (AP, Access Point) under an IEEE 802 system such as WLAN, WRAN, or Wimax.
  • a cellular network system such as an LTE, a 3G system, a 2G system, or an access point (AP, Access Point) under an IEEE 802 system such as WLAN, WRAN, or Wimax.
  • the embodiment of the invention provides a method for configuring a spectrum resource of a cognitive radio system, and takes a SC as a reconfiguration management node as an example for description.
  • the SC performs the spectrum resource reconfiguration decision process for the secondary user equipment according to the BS idle spectrum reconfiguration target information, the usage information of the primary system spectrum, and the historical configuration information of the secondary user equipment to the primary system idle spectrum resources.
  • the following is a detailed description:
  • Step 501 The SC acquires and stores the idle spectrum resource history configuration information reported by the BS.
  • the idle spectrum resource history configuration information refers to the configuration information when the BS previously uses the primary system idle spectrum resource; and includes one or more of the following information. : Configure the frequency of the idle spectrum, configure the bandwidth of the idle spectrum, the location of the secondary user equipment, the identifier of the secondary user equipment, the transmit power of the secondary user equipment, the antenna parameters of the resource user equipment, the duration of use, and the idle spectrum. SINR, service signal received power, interference power, network performance information after the secondary user equipment configures the idle frequency;
  • the network performance information after the secondary user equipment configures the idle spectrum refers to the communication performance parameter of the idle spectrum cell established by the secondary user/system using the idle spectrum resource of the primary system; including but not limited to one or more of the following information: Idle spectrum cell throughput, transmission rate, bit error rate, block error rate, coverage rate, RRC connection establishment success rate, E-RAB establishment success rate, E-RAB establishment blocking rate, dropped call rate, handover success rate.
  • the historical configuration information on the BS at the frequency bands 530, 560, and 480 MHz is as shown in Table 1:
  • Step 502 The BS initiates an idle frequency request and reports an idle spectrum reconfiguration target.
  • the BS sends the idle spectrum resource request information to the SC, where the idle spectrum resource request information includes any one or any of the following information: idle frequency request indication information, idle frequency request cause information, idle spectrum configuration Target information.
  • the idle frequency request indication information includes any one or any of the following information: secondary user equipment location, device type, device parameter, demand for idle spectrum frequency, demand for idle spectrum bandwidth, and idle spectrum The need for idle time, the need for idle frequency transmit power,
  • the device parameters include one or more of the following information: transmitter transmission template, adjacent channel leakage ratio ACLR, transmission gain, antenna height, antenna direction angle, pitch angle, downtilt angle, polarization mode.
  • the idle frequency request cause information indicates a reason for triggering the secondary user equipment to perform the idle frequency request, including any one or any of the following contents: the network load is overloaded, the coverage is not up to expectations, the coverage is exceeded, and the communication interference is higher than The preset threshold, the service signal receiving power is lower than the preset threshold, the SINR is lower than the preset threshold, and the network performance parameters are not up to the required.
  • the network performance parameter fails to meet any one or any of the following information: the throughput is lower than a preset threshold, the transmission rate is lower than a preset threshold, the bit error rate and/or the block error rate and/or the dropped call rate are high.
  • the RRC connection establishment success rate and/or the E-RAB connection establishment success rate is lower than the preset threshold, the E-RAB establishes the blocking rate higher than the preset threshold, and the switching success rate is lower than the preset threshold.
  • the idle spectrum configuration target information indicates a performance indicator that the network reaches after the secondary user equipment desires to configure the idle frequency, and includes any one or any of the following contents: the spectrum resource satisfies the network load requirement, and the coverage meets the requirement, and the communication link
  • the interference is lower than the preset threshold, the service signal receiving power meets the minimum receiving threshold requirement, the SINR is higher than the preset threshold, and the network performance parameter meets the requirement.
  • the BS sends the idle spectrum resource request information to the SC, including: location L 1 , identifier 01 , and device parameters, including technology identifier (LTE ), device type (fixed device), transmission level (transmit power level), and antenna parameters ( Height, antenna direction angle, pitch angle, wireless polarization) Shooting template (ACLR), etc.;
  • the idle spectrum reconfiguration target is: The bit error rate is lower than 3%, the transmission rate is higher than 50Mbit/s, and the switching success rate is higher than 95%.
  • the antenna parameters reported by the BS are used by the GLDB to calculate the maximum allowable transmit power for the BS according to the primary user protection requirement, and the SC is used for calculating the transmit power coexisting between the BSs according to the inter-BS coexistence principle.
  • Step 503 According to the idle spectrum resource application message, the SC accesses the GLDB to obtain the primary system idle spectrum resource information at the location of the BS at the moment;
  • the idle spectrum resource information of the primary system is the current idle spectrum resource situation information
  • the specific access process is: the SC sends the location information of the BS, the antenna parameter information is sent to the GLDB, and the GLDB searches for the stored primary user spectrum at the location.
  • the GLDB feeds back the above information to the SC. As shown in the list of free spectrum resources below:
  • Step 504 The SC performs an idle spectrum resource configuration decision.
  • the current idle spectrum resource situation information ie, the current idle spectrum resource situation information, the current idle spectrum resource situation information indicates the primary system idle spectrum situation information at the current secondary user equipment location and the idle spectrum The interference situation information
  • the existing BS history configuration information Table 1
  • the above idle spectrum resource configuration decision result is formed into a message that the BS can recognize.
  • Step 505 The SC sends the result of the idle spectrum resource configuration decision to the Bs.
  • the secondary system uses the bit error rate, the transmission rate, and the handover success rate as parameters for measuring system performance, and other parameters such as the throughput of the idle spectrum cell, the block error rate, the coverage rate, the RRC connection establishment success rate, and E. - RAB establishment success rate, E-RAB establishment blocking rate, call drop rate can be used as performance parameters.
  • the optimal performance configuration is selected for the BS; or all the idle spectrum resource information is provided to the BS, and the idle spectrum is selected by the BS; Or, give up configuring the spectrum for the BS.
  • Embodiment 2 The embodiment of the present invention provides a method for configuring a spectrum resource of a cognitive radio system, and the SC is used as a reconfiguration management node as an example for description.
  • the flow of the SC according to the usage information of the spectrum of the main system and the historical configuration information of the idle spectrum resources of the primary system by the secondary user equipment, and the flow of the spectrum resource reconfiguration decision for the secondary user equipment are shown in FIG.
  • Step 501 The same as the specific implementation of step 501 in the first embodiment of the method, and details are not described herein again.
  • Step 502 The BS initiates an idle frequency request and reports the idle spectrum reconfiguration target.
  • the BS sends the idle spectrum resource request information to the SC, where the idle spectrum resource request information includes any one or any of the following information. : Idle frequency request indication information, idle frequency request cause information, idle spectrum configuration target information.
  • the idle frequency request indication information includes any one or any of the following information: secondary user equipment location, device type, device parameter, demand for idle spectrum frequency, demand for idle spectrum bandwidth, and idle spectrum The need for idle time, the need for idle frequency transmit power,
  • the device parameters include one or more of the following information: transmitter transmission template, adjacent channel leakage ratio ACLR, transmission gain, antenna height, antenna direction angle, pitch angle, downtilt angle, polarization mode.
  • the idle frequency request cause information indicates a reason for triggering the secondary user equipment to perform the idle frequency request, including any one or any of the following contents: the network load is overloaded, the coverage is not up to expectations, the coverage is exceeded, and the communication interference is higher than Preset threshold, service signal received power is lower than the preset threshold, SINR Below the preset threshold, the network performance parameters are not up to standard.
  • the network performance parameter fails to meet any one or any of the following information: the throughput is lower than a preset threshold, the transmission rate is lower than a preset threshold, the bit error rate and/or the block error rate and/or the dropped call rate are high.
  • the RRC connection establishment success rate and/or the E-RAB connection establishment success rate is lower than the preset threshold, the E-RAB establishes the blocking rate higher than the preset threshold, and the switching success rate is lower than the preset threshold.
  • the idle spectrum configuration target information indicates a performance indicator that the network reaches after the secondary user equipment desires to configure the idle frequency, and includes any one or any of the following contents: the spectrum resource satisfies the network load requirement, and the coverage meets the requirement, and the communication link
  • the interference is lower than the preset threshold, the service signal receiving power meets the minimum receiving threshold requirement, the SINR is higher than the preset threshold, and the network performance parameter meets the requirement.
  • the BS sends the idle spectrum reconfiguration request information and the idle spectrum reconfiguration target information to the SC, including: a position L 1 , an identifier 01 , and an antenna parameter; where the antenna parameter is used by the GLDB to calculate the maximum allowable for the BS according to the primary user protection requirement.
  • the transmission power, and the SC are used for calculating the transmission power that satisfies the coexistence between the BSs according to the inter-BS coexistence principle.
  • the idle spectrum reconfiguration target is: The bit error rate is lower than 3%, the transmission rate is higher than 50Mbit/s, and the handover success rate is higher than 95%.
  • Step 503 It is the same as the specific implementation of step 503 in the first embodiment of the method, and details are not described herein again.
  • Step 504 The SC performs an idle spectrum resource configuration decision.
  • Step 505 The SC sends the result of the idle spectrum resource configuration decision to the Bs.
  • the SC may also not select a spectrum for the BS, that is, all the idle spectrum and the expected performance can be sent to the BS, and the BS selects the configured spectrum.
  • Embodiments of the present invention provide a method for configuring a spectrum resource of a cognitive radio system, which is implemented by an SC.
  • This section describes how to reconfigure the management node.
  • the SC is based on the idle spectrum reconfiguration request reason information (the interference exceeds the preset threshold), and the flow of the embodiment of the spectrum resource reconfiguration decision for the BS is shown in FIG. 6, which is specifically described below:
  • Step 601 The SC acquires and stores the idle spectrum resource history configuration information reported by the BS.
  • the idle spectrum resource history configuration information refers to the configuration information when the BS previously uses the primary system idle spectrum resource; and includes one or more of the following information. : Configure the frequency of the idle frequency, configure the bandwidth of the idle spectrum, the location of the secondary user equipment, the identifier of the secondary user equipment, the transmission power of the secondary user equipment, the antenna parameters of the resource user equipment, the duration of use, and the idle spectrum. SINR, service signal received power, interference power, network performance information after the secondary user equipment configures the idle frequency;
  • the network performance information after the secondary user equipment configures the idle spectrum refers to the communication performance parameter of the idle spectrum cell established by the secondary user/system using the idle spectrum resource of the primary system; including but not limited to one or more of the following information: Idle spectrum cell throughput, transmission rate, bit error rate, block error rate, coverage rate, RRC connection establishment success rate, E-RAB establishment success rate, E-RAB establishment blocking rate, dropped call rate, handover success rate.
  • the historical configuration information on the BS at the frequency bands 530, 560, and 480 MHz is as shown in Table 3:
  • Step 602 The BS initiates an idle frequency request and reports the cause of the idle spectrum reconfiguration request.
  • the BS sends the idle spectrum resource request information to the SC, where the idle spectrum resource request information includes any one or any of the following information.
  • Item Idle frequency request indication information, idle frequency request cause information, idle spectrum configuration target information.
  • the idle frequency request indication information includes any one or any of the following information: secondary user equipment location, device type, device parameter, demand for idle spectrum frequency, demand for idle spectrum bandwidth, and idle spectrum The need for idle time, the need for idle frequency transmit power,
  • the device parameters include one or more of the following information: transmitter transmission template, adjacent channel leakage ratio ACLR, transmission gain, antenna height, antenna direction angle, pitch angle, downtilt angle, polarization mode.
  • the idle frequency request cause information indicates a reason for triggering the secondary user equipment to perform the idle frequency request, including any one or any of the following contents: the network load is overloaded, the coverage is not up to expectations, the coverage is exceeded, and the communication interference is higher than The preset threshold, the service signal receiving power is lower than the preset threshold, the SINR is lower than the preset threshold, and the network performance parameters are not up to the required.
  • the network performance parameter fails to meet any one or any of the following information: the throughput is lower than a preset threshold, the transmission rate is lower than a preset threshold, the bit error rate and/or the block error rate and/or the dropped call rate are high.
  • the RRC connection establishment success rate and/or the E-RAB connection establishment success rate is lower than the preset threshold, the E-RAB establishes the blocking rate higher than the preset threshold, and the switching success rate is lower than the preset threshold.
  • the idle spectrum configuration target information indicates a performance indicator that the network reaches after the secondary user equipment desires to configure the idle frequency, and includes any one or any of the following contents: the spectrum resource satisfies the network load requirement, and the coverage meets the requirement, and the communication link
  • the interference is lower than the preset threshold, the service signal receiving power meets the minimum receiving threshold requirement, the SINR is higher than the preset threshold, and the network performance parameter meets the requirement.
  • the BS sends the idle spectrum resource request information to the SC, including: location L 1 , identifier 01 , and device parameters, including technology identifier (LTE ), device type (fixed device), transmission level (transmit power level), and antenna parameters ( Height, antenna direction angle, pitch angle, wireless polarization), transmit template (ACLR), etc.; antenna parameters reported by BS for GLDB to calculate the maximum allowable transmit power for BS according to primary user protection requirements, and SC based on the principle of coexistence between BSs
  • the BS is used when calculating the transmission power that satisfies the coexistence between BSs.
  • the reason for the idle spectrum reconfiguration request is:
  • the communication link interference is higher than the preset threshold Imax, and the threshold is set according to the interference tolerance of the secondary system. If the actual interference value is higher than the threshold, the system cannot meet the performance requirement.
  • Imax -20 dBm.
  • the interference on the communication link is higher than the preset threshold obtained by monitoring the network performance of the secondary user equipment.
  • the network detects one of the following conditions through performance monitoring: The transmission rate is lower than the preset threshold, and the error is incorrect. The rate, the block error rate, the call drop rate is higher than the preset threshold, the RRC connection establishment success rate, the E-RAB establishment success rate is lower than the preset threshold, the E-RAB establishment blocking rate is higher than the preset threshold, and the handover success rate is lower than the preset threshold.
  • the preset threshold is further determined, and it is determined that the interference value on the communication link is higher than Imax, and the idle spectrum reconfiguration request is triggered.
  • Step 603 According to the idle spectrum resource application message, the SC accesses the GLDB to obtain the primary system idle spectrum resource information at the location of the BS at the moment;
  • the idle spectrum resource information of the primary system is the current idle spectrum resource situation information
  • the specific access process is: the SC sends the location information of the BS, the antenna parameter information is sent to the GLDB, and the GLDB searches for the stored primary user spectrum at the location.
  • the GLDB feeds back the above information to the SC. As shown in the list of free spectrum resources below:
  • Step 604 The SC performs an idle spectrum resource configuration decision.
  • Step 605 The SC sends the result of the idle spectrum resource configuration decision to the BS.
  • the secondary system triggers the current spectrum resource reconfiguration decision process by using the interference value greater than the preset threshold as the reason for the idle spectrum reconfiguration request. For other reasons, such as network load overload, coverage is not up to expectations, and coverage is exceeded.
  • the cell edge user service signal power is lower than the preset threshold.
  • the average cell SINR is lower than the preset threshold and can be used as the reconfiguration request.
  • the optimal performance configuration is selected for the BS; or all the idle spectrum resource information is provided to the BS, and the idle spectrum is selected by the BS; Or, give up configuring the spectrum for the BS.
  • the embodiment of the invention provides a method for configuring a spectrum resource of a cognitive radio system, and takes a SC as a reconfiguration management node as an example for description.
  • the SC is based on the idle spectrum reconfiguration request reason information (the average SINR of the small-area user is lower than the preset threshold), and the flow of the spectrum resource reconfiguration decision for the BS1 is shown in FIG. 6, which is specifically described below:
  • Step 601 The SC acquires and stores the idle spectrum resource history configuration information reported by the BS.
  • the idle spectrum resource history configuration information refers to the configuration information when the BS previously uses the primary system idle spectrum resource; and includes one or more of the following information. : Configure the frequency of the idle spectrum, configure the bandwidth of the idle spectrum, the location of the secondary user equipment, the identifier of the secondary user equipment, the transmit power of the secondary user equipment, the antenna parameters of the resource user equipment, the duration of use, and the idle spectrum. SINR, service signal received power, interference power, network performance information after the secondary user equipment configures the idle frequency;
  • the network performance information after the secondary user equipment configures the idle spectrum refers to the communication performance parameter of the idle spectrum cell established by the secondary user/system using the idle spectrum resource of the primary system; including but not limited to one or more of the following information: Idle spectrum cell throughput, transmission rate, bit error rate, block error rate, coverage rate, RRC connection establishment success rate, E-RAB establishment success rate, E-RAB establishment blocking rate, dropped call rate, handover success rate.
  • the historical configuration information on the BS at the frequency bands 530, 560, and 480 MHz is as shown in Table 5:
  • Step 602 The BS initiates an idle frequency request and reports the cause of the idle spectrum reconfiguration request.
  • the BS sends the idle spectrum resource request information to the SC, where the idle spectrum resource request information includes any one or any of the following information.
  • Item Idle frequency request indication information, idle frequency request cause information, idle spectrum configuration target information.
  • the idle frequency request indication information includes any one or any of the following information: secondary user equipment location, device type, device parameter, demand for idle spectrum frequency, demand for idle spectrum bandwidth, and idle spectrum The need for idle time, the need for idle frequency transmit power,
  • the device parameters include one or more of the following information: transmitter transmission template, adjacent channel leakage ratio ACLR, transmission gain, antenna height, antenna direction angle, pitch angle, downtilt angle, polarization mode.
  • the idle frequency request cause information indicates a reason for triggering the secondary user equipment to perform the idle frequency request, including any one or any of the following contents: the network load is overloaded, the coverage is not up to expectations, the coverage is exceeded, and the communication interference is higher than The preset threshold, the service signal receiving power is lower than the preset threshold, the SINR is lower than the preset threshold, and the network performance parameters are not up to the required.
  • the network performance parameter fails to meet any one or any of the following information: the throughput is lower than a preset threshold, the transmission rate is lower than a preset threshold, the bit error rate and/or the block error rate and/or the dropped call rate are high.
  • the RRC connection establishment success rate and/or the E-RAB connection establishment success rate is lower than the preset threshold, the E-RAB establishes the blocking rate higher than the preset threshold, and the switching success rate is lower than the preset threshold.
  • the idle spectrum configuration target information indicates a performance indicator that the network reaches after the secondary user equipment desires to configure the idle frequency, and includes any one or any of the following contents: the spectrum resource satisfies the network load requirement, and the coverage meets the requirement, and the communication link
  • the interference is lower than the preset threshold, the service signal receiving power meets the minimum receiving threshold requirement, the SINR is higher than the preset threshold, and the network performance parameter meets the requirement.
  • the BS sends the idle spectrum resource request information to the SC, where: the location L 1 , the identifier 01 , And equipment parameters, including technical identification (LTE), equipment type (fixed equipment), transmission level (transmit power level), antenna parameters (height, antenna direction angle, pitch angle, wireless polarization), emission template (ACLR), etc.
  • LTE technical identification
  • equipment type fixed equipment
  • transmission level transmission level
  • antenna parameters antenna parameters (height, antenna direction angle, pitch angle, wireless polarization), emission template (ACLR), etc.
  • the antenna parameters reported by the BS are used by the GLDB to calculate the maximum allowable transmit power for the BS according to the primary user protection requirement, and the SC is used for calculating the transmit power coexisting between the BSs according to the inter-BS coexistence principle.
  • the reason for the idle spectrum reconfiguration request is:
  • the average SINR of the cell edge user is lower than the preset threshold of -7.5 dB.
  • the threshold is set according to the minimum SINR requirement of the secondary system. If the actual SINR value is lower than the threshold, the system uses any code modulation. No way can meet the performance requirements.
  • the SINR threshold is -7.5 dB.
  • Step 603 According to the idle spectrum resource application message, the SC accesses the GLDB to obtain the primary system idle spectrum resource information at the location of the BS at the moment;
  • the idle spectrum resource information of the primary system is the current idle spectrum resource situation information
  • the specific access process is: the SC sends the location information of the BS, the antenna parameter information is sent to the GLDB, and the GLDB searches for the stored primary user spectrum at the location.
  • the resource usage it is found that there are three available spectrum resources of fl, £2, and ⁇ , and the maximum allowable transmit power on each spectrum resource is calculated according to the antenna parameters of the BS and the primary user protection criteria: 40 dBm, 40 dBm, 30dBm.
  • the GLDB feeds the above information back to the SC. As shown in the list of free spectrum resources below:
  • Step 604 The SC performs an idle spectrum resource configuration decision.
  • the largest average SINR value of the cell edge users in each idle spectrum is selected as the reconfiguration target spectrum, and then fl is transmitted.
  • the average SINR value of the cell edge user can be Up to 10dB.
  • Step 605 The SC sends the result of the idle spectrum resource configuration decision to the Bs.
  • the secondary system triggers the current spectrum resource reconfiguration decision process by using the cell edge user average SINR less than the preset threshold as the reason for the idle spectrum reconfiguration request.
  • Other reasons such as network load overload, coverage is not up to expectations, cross-region coverage, communication link interference is higher than the preset threshold, and the cell edge user service signal power is lower than the preset threshold can be used as the reason for the reconfiguration request.
  • the optimal performance configuration is selected for the BS; or all the idle spectrum resource information is provided to the BS, and the idle spectrum is selected by the BS; Or, give up configuring the spectrum for the BS.
  • the embodiment of the invention provides a method for configuring a spectrum resource of a cognitive radio system, and takes a SC as a reconfiguration management node as an example for description.
  • the SC is based on the idle spectrum reconfiguration request reason information (the coverage range is not up to expectations).
  • the flow of the embodiment of the spectrum resource reconfiguration decision for BS1 is shown in Figure 7.
  • Step 701 The SC acquires and stores the idle spectrum resource history configuration information reported by the BS.
  • the idle spectrum resource history configuration information refers to the configuration information when the BS previously uses the primary system idle spectrum resource; and includes one or more of the following information. : : Configure the frequency of the idle frequency, configure the bandwidth of the idle spectrum, the location of the secondary user equipment, the identity of the secondary user equipment, the transmit power of the secondary user equipment, the antenna parameters of the resource user equipment, the duration of use, and the idle SINR on the spectrum, service signal received power, interference power, network performance information after the secondary user equipment configures the idle frequency;
  • the network performance information after the secondary user equipment configures the idle spectrum refers to the communication performance parameter of the idle spectrum cell established by the secondary user/system using the idle spectrum resource of the primary system; including but not limited to one or more of the following information: Idle spectrum cell throughput, transmission rate, bit error rate, block error rate, coverage rate, RRC connection establishment success rate, E-RAB establishment success rate, E-RAB establishment blocking rate, dropped call rate, handover success rate.
  • the historical configuration information on the BS at the frequency bands 530, 560, and 480 MHz As shown in Table 7:
  • Step 702 The BS initiates an idle frequency request and reports the cause of the idle spectrum reconfiguration request.
  • the BS sends the idle spectrum resource request information to the SC, where the idle spectrum resource request information includes any one or any of the following information.
  • Item Idle frequency request indication information, idle frequency request cause information, idle spectrum configuration target information.
  • the idle frequency request indication information includes any one or any of the following information: secondary user equipment location, device type, device parameter, demand for idle spectrum frequency, demand for idle spectrum bandwidth, and idle spectrum
  • secondary user equipment location includes any one or any of the following information: secondary user equipment location, device type, device parameter, demand for idle spectrum frequency, demand for idle spectrum bandwidth, and idle spectrum
  • device type includes any one or any of the following information: secondary user equipment location, device type, device parameter, demand for idle spectrum frequency, demand for idle spectrum bandwidth, and idle spectrum
  • the need for idle time, the need for idle frequency transmit power includes any one or any of the following information: secondary user equipment location, device type, device parameter, demand for idle spectrum frequency, demand for idle spectrum bandwidth, and idle spectrum The need for idle time, the need for idle frequency transmit power,
  • the device parameters include one or more of the following information: transmitter transmission template, adjacent channel leakage ratio ACLR, transmission gain, antenna height, antenna direction angle, pitch angle, downtilt angle, polarization mode.
  • the idle frequency request cause information indicates a reason for triggering the secondary user equipment to perform the idle frequency request, including any one or any of the following contents: the network load is overloaded, the coverage is not up to expectations, the coverage is exceeded, and the communication interference is higher than The preset threshold, the service signal receiving power is lower than the preset threshold, the SINR is lower than the preset threshold, and the network performance parameters are not up to the required.
  • the network performance parameter fails to meet any one or any of the following information: the throughput is lower than a preset threshold, the transmission rate is lower than a preset threshold, the bit error rate and/or the block error rate and/or the dropped call rate are high.
  • the RRC connection establishment success rate and/or the E-RAB connection establishment success rate is lower than the preset threshold, the E-RAB establishes the blocking rate higher than the preset threshold, and the switching success rate is lower than the preset threshold.
  • the idle spectrum configuration target information indicates a performance indicator that the network reaches after the secondary user equipment desires to configure the idle frequency, and includes any one or any of the following contents: the spectrum resource satisfies the network load requirement, and the coverage meets the requirement, and the communication link
  • the interference is lower than the preset threshold, and the service signal receiving power is full.
  • the minimum receiving threshold requirement, the SINR is higher than the preset threshold, and the network performance parameters meet the requirements.
  • the BS sends the idle spectrum resource request information to the SC, including: location L 1 , identifier 01 , and device parameters, including technology identifier (LTE ), device type (fixed device), transmission level (transmit power level), and antenna parameters ( Height, antenna direction angle, pitch angle, wireless polarization), transmit template (ACLR), etc.; antenna parameters reported by BS for GLDB to calculate the maximum allowable transmit power for BS according to primary user protection requirements, and SC based on the principle of coexistence between BSs
  • the BS is used when calculating the transmission power that satisfies the coexistence between BSs.
  • the reason for the idle spectrum reconfiguration request is that the coverage is not up to expectations, that is, the SINR of some edge users does not meet the requirements, and the coverage requirements are not met.
  • Step 703 According to the idle spectrum resource application message, the SC accesses the GLDB to obtain the primary system idle spectrum resource information at the location of the BS at the moment;
  • the idle spectrum resource information of the primary system is the current idle spectrum resource situation information
  • the specific access process is: the SC sends the location information of the BS, the antenna parameter information is sent to the GLDB, and the GLDB searches for the stored primary user spectrum at the location.
  • the GLDB feeds back the above information to the SC. As shown in the list of free spectrum resources below:
  • Step 704 The SC performs an idle spectrum resource configuration decision.
  • the transmit power of the BS is currently 30 dBm on the idle spectrum f4, and the transmission cannot be improved due to the limitation of the primary user protection. Power, therefore, f4 can not meet the coverage needs of BS.
  • the frequency domain needs to be reconfigured.
  • the SC configures the BS to perform channel interference measurement, and obtains interference measurement results on each idle frequency: fl: -lOdBm; ⁇ : -lOdBm; G: OdBm.
  • the BS configures each idle spectrum, and the maximum average SINR (estimated SINR value) available to the edge users is:
  • the average SINR value of the cell edge user in each idle spectrum is selected as the reconfiguration target spectrum
  • the average SINR value of the cell edge user can reach 5 dB when the transmit power is 40 dBm.
  • Step 705 The SC sends the result of the idle spectrum resource configuration decision to the Bs.
  • An embodiment of the present invention provides a spectrum resource configuration apparatus for a cognitive radio system.
  • the structure of the apparatus is as shown in FIG. 8, and includes:
  • the request receiving module 801 is configured to receive the idle spectrum resource request information sent by the secondary user equipment, where the idle spectrum resource request information indicates the requirement of the secondary user equipment for the idle spectrum resource;
  • the configuration decision module 802 is configured to perform idle spectrum resource configuration decision on the secondary user equipment according to the idle spectrum resource history configuration information and the current idle spectrum resource situation information of the secondary user equipment.
  • the device further comprises:
  • the history information obtaining module 803 is configured to acquire the idle spectrum resource history configuration information of the secondary user equipment, where the idle spectrum resource history configuration information refers to the historical usage information and usage of the secondary user equipment to the primary system idle spectrum resource. Network performance information achieved by idle spectrum resources.
  • the configuration of the configuration decision module 802 is as shown in FIG. 9, and includes:
  • the main system idle spectrum condition obtaining unit 8021 is configured to obtain the information about the idle spectrum of the primary system from a database that stores the usage of the spectrum resource of the primary system or by using a measurement report of the secondary user equipment;
  • the requirement conversion unit 8022 is configured to convert the idle spectrum request cause information and/or the idle spectrum configuration target information into performance requirements of the secondary user equipment for the idle spectrum;
  • the resource selection unit 8023 is configured to select, according to the performance that the secondary user equipment can achieve in the historical configuration of the idle spectrum resource, the secondary user equipment to select, in the idle spectrum list, the idle spectrum resource that meets the performance requirement, or ,
  • the idle spectrum resources are prioritized according to the performance level that can be achieved in the historical configuration, and the idle spectrum resources are selected for the secondary user equipment;
  • the device further comprises:
  • a configuration decision sending module 804 configured to send a result of the idle spectrum resource configuration decision of the secondary user equipment to the secondary user equipment, where the result of the idle spectrum reconfiguration decision includes any one of the following information or Any number of:
  • the cognitive radio system spectrum resource configuration apparatus may be integrated into the reconfiguration management node, and combined with the cognitive radio system spectrum resource configuration method provided by any one of the embodiments 1 to 6 of the present invention, the reconfiguration node performs the corresponding function.
  • all or part of the steps of the above embodiments may also be implemented using an integrated circuit.
  • the steps may be separately fabricated into individual integrated circuit modules, or multiple of the modules or steps may be implemented as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the various devices/function modules/functional units in the above embodiments may be implemented using a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • Each device/function module/functional unit in the above embodiments can be stored in a computer readable storage medium when implemented in the form of a software function module and sold or used as a standalone product.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • An embodiment of the present invention provides a method and an apparatus for configuring a spectrum resource of a cognitive radio system, where a reconfiguration management node receives idle spectrum resource request information sent by a secondary user equipment, where the idle spectrum resource request information indicates the secondary user
  • the device needs the idle spectrum resource, and the reconfiguration management node performs the idle spectrum resource on the secondary user equipment according to the idle frequency resource history configuration information and the current idle spectrum resource situation information of the secondary user equipment.
  • Configuration decision A more efficient idle spectrum resource allocation decision based on historical data is implemented, which solves the problem that the existing resource configuration method affects system stability.

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Abstract

一种认知无线电系统频谱资源配置方法和装置。涉及无线通信领域；解决了现有资源配置方式影响系统稳定性的问题。该方法包括：重配置管理节点接收次级用户设备发送的空闲频谱资源请求信息，所述空闲频谱资源请求信息指示所述次级用户设备对空闲频谱资源的需求；所述重配置管理节点根据所述次级用户设备的空闲频谱资源历史配置信息和当前空闲频谱资源情况信息，对所述次级用户设备进行空闲频谱资源配置决策。本发明实施例提供的技术方案适用于无线电业务，实现了基于历史数据的更高效的空闲频谱资源配置决策。

Description

认知无线电系统频谱资源配置方法和装置
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频谱配置方法 和装置。
背景技术
随着无线电技术的不断进步， 各种各样的无线电业务大量涌现， 而无线 电业务所依托的频谱资源是有限的， 面对人们对带宽需求的不断增加， 频谱 资源表现出极为紧张的局面； 而另一方面在传统的固定频谱分配模式下， 频 谱资源的利用率却不高。 从某种意义上讲， 是这种固定分配给授权系统的频 谱分配制度造成了频谱资源极为紧张的局面。 而认知无线电技术就打破了传 统意义上的频谱固定分配制度， 将频谱在系统间动态分配， 提高了频谱的利 用效率。 典型的， 如随着人们日常通信需求的不断提高， 已经不满足于简单 的语音数据通信， 视频流媒体业务在人们通信生活中的比重不断增加， 这要 求更大的带宽作为支撑， 国际移动电话（ IMT , International Mobile Telecom ) 系统显现出前所未有的频谱紧张局面， 而对于广播电视系统来讲， 频谱资源 在很大程度上存在着可利用的空间， 如某些广播电视系统频谱在某些地区并 未被使用； 某些广播电视系统频谱在某地区虽有覆盖， 但某些时刻没有被使 用， 整体利用率偏低。 而固定的频谱分配方式使得上述未被使用的频谱资源 无法重新利用， 例如无法为 IMT系统所用。 通过认知无线电技术 IMT系统 通过对广播电视系统信息的获取， 伺机的占用广电系统在空间和时间上未使 用的频谱资源（TVWS, TV White Space ) , 从而提高广播电视系统频谱的利 用率， 改善了 ΙΜΤ系统频谱紧张的局面。 类似的技术包括： 非授权频语共享 技术， 典型的如 TVWS频段 CR技术； 以及授权共享接入（LSA, License Shared Access )技术。
上述两种次级系统伺机占用或授权共享主系统频谱资源的频谱使用方 式， 必须保证对主用户有效地保护， 即次级系统使用主系统频谱资源时， 不 能对主系统用户造成有害干扰， 这是认知无线电技术能够实现的前提条件。 为了达到这样的目的， 如图 1所示的干扰场景下， 首先， 次级系统的使用频 谱及发射参数将受到主系统保护要求的限制， 在最初确定这些参数时需要进 行准确的决策； 其次， 次级系统需要及时获知主用户的出现， 以便在发现次 级系统所占用频谱资源上的主用户重新出现时， 及时退出所述频谱资源， 避 免对主用户的干扰。
进一步的， 由于可能存在多个次级用户设备同时使用主系统空闲频谱， 如图 2所示的干扰场景， TVWS可以使用的另一个必要条件是各次级系统能 够在 TVWS上的实现共存， 互不干扰的使用 TVWS资源， 即彼此间干扰在 容忍范围内。 因此， 次级系统间的干扰规避也是在频谱资源分配决策时所必 须要考虑的因素。
在上述过程中， 频谱资源重配置决策需要考虑上述两方面的共存需求完 成频谱资源的配置决定， 是 CR技术中至关重要的一个步骤。 而且由于主用 户出现、 次级用户间干扰关系的变化等因素， 频谱资源的配置可能需要频繁 的变更， 因此频谱资源重配置决策也需要频繁的来进行。 相关技术中， 每一 次频谱资源重配置都需要进行重新的决策， 而并没有利用之前已有的频谱资 源重配置经验数据， 这样的每一次频谱资源重配置过程都涉及相关信息的获 取与处理， 计算得出配置参数等一系列操作， 这将使系统耗费比较大的处理 开销， 配置时延， 及相关信令交互的开销。 另外， 做出的重配置决策由于没 有经过实际配置的检验， 未必能够达到次级用户重配置的目标， 或者需要根 据实际配置效果进一步修正重配置决策方案。 这将使次级系统的稳定性受到 影响。
发明内容
本发明提供了一种认知无线电系统频谱资源配置方法和装置， 解决了现 有资源配置方式影响系统稳定性的问题。
一种认知无线电系统频谱资源配置方法， 包括：
重配置管理节点接收次级用户设备发送的空闲频谱资源请求信息， 所述 空闲频谱资源请求信息指示所述次级用户设备对空闲频谱资源的需求； 所述重配置管理节点根据所述次级用户设备的空闲频谱资源历史配置信 息和当前空闲频谱资源情况信息， 对所述次级用户设备进行空闲频谱资源配 置决策。
优选的，所述空闲频谱资源请求信息包括以下信息中的任一或任意多项： 空闲频谱请求指示信息， 空闲频语请求原因信息， 空闲频谱配置目标信息。
优选的，所述空闲频谱请求指示信息包括以下信息中的任一或任意多项： 次级用户设备位置， 设备类型， 设备参数， 对空闲频谱频点的需求， 对 空闲频谱带宽的需求， 对空闲频谱空闲时长的需求， 对空闲频语发射功率的 需求，
其中所述设备参数包括以下信息中的一项或多项： 发射机发射模板， 邻 道泄漏比 ACLR, 发射增益， 天线高度， 天线方向角， 俯仰角， 下倾角， 极 化方式。
优选的， 所述空闲频谱请求原因信息指示触发次级用户设备进行空闲频 语请求的原因， 包括以下任一或任意多项内容： 网络负载过载， 覆盖范围未 达预期， 越区覆盖， 通信干扰高于预设门限， 服务信号接收功率低于预设门 限， SINR低于预设门限， 网络性能参数未达要求。
优选的， 所述网络性能参数未达要求包括以下任一或任意多项信息： 吞 吐量低于预设门限， 传输速率低于预设门限， 误码率和 /或误块率和 /或掉话 率高于预设门限， RRC连接建立成功率和 /或 E - RAB连接建立成功率低于 预设门限， E - RAB建立阻塞率高于预设门限， 切换成功率低于预设门限。
优选的， 所述空闲频谱配置目标信息指示次级用户设备期望配置空闲频 语后网络所达到的性能指标， 包括以下任一项或任意多项内容： 频谱资源满 足网络负载需求， 覆盖满足要求， 通信链路干扰低于预设门限， 服务信号接 收功率满足最小接收门限要求， SINR 高于预设门限， 网络性能参数达到要 求。
优选的， 所述当前空闲频谱资源情况信息指示当前次级用户设备所在位 置上主系统空闲频谱情况信息以及所述空闲频谱上的干扰情况信息。
优选的， 该方法还包括： 所述重配置管理节点获取所述次级用户设备的 空闲频谱资源历史配置信息， 所述空闲频谱资源历史配置信息指所述次级用 户设备对主系统空闲频谱资源的历史使用信息及使用空闲频谱资源所达到的 网络性能信息。
优选的， 该方法还包括： 所述空闲频谱资源历史配置信息在次级用户设 备完成空闲频谱资源配置后， 通过次级用户设备自身的测量， 或次级用户设 备所属次级系统的网络管理系统的性能统计得到， 并由次级用户设备或网络 管理系统发送给重配置管理节点；
所述空闲频谱资源历史配置信息包括以下信息中的任一或任意多项： 配置空闲频谱的频点， 配置空闲频谱的带宽， 次级用户设备的位置， 次 级用户设备的标识， 次级用户设备的发射功率， 资源用户设备的天线参数， 使用时长， 在空闲频谱上的 SINR, 服务信号接收功率， 干扰功率， 次级用 户设备配置空闲频语后的网络性能信息；
所述网络性能信息包括以下信息中的任一或任意多项： 空闲频谱小区的 吞吐量，传输速率，误码率，误块率，覆盖率， RRC连接建立成功率， E-RAB 建立成功率， E-RAB建立阻塞率， 掉话率， 切换成功率。
优选的， 所述重配置管理节点根据所述次级用户设备的空闲频谱资源历 史配置信息和当前空闲频谱资源情况信息， 对所述次级用户设备进行空闲频 谱资源配置决策包括：
从保存主系统频谱资源使用情况的数据库中获取或通过次级用户设备的 测量上报中获取所述主系统空闲频谱情况信息；
将空闲频谱请求原因信息和 /或空闲频谱配置目标信息转化成所述次级 用户设备对空闲频谱的性能需求；
根据所述次级用户设备对空闲频谱资源的历史配置中所能达到的性能， 为所述次级用户设备在空闲频谱列表中选择满足性能需求的空闲频谱资源， 或者，
依据历史配置中所能达到的性能高低，将空闲频谱资源进行优先级排序， 为所述次级用户设备选择空闲频谱资源。
优选的， 所述重配置管理节点根据所述次级用户设备的空闲频谱资源历 史配置信息和当前空闲频谱资源情况信息， 对所述次级用户设备进行空闲频 谱资源配置决策的步骤之后， 还包括：
所述重配置管理节点将对所述次级用户设备的空闲频谱资源配置决策的 结果发送给所述次级用户设备， 该空闲频谱重配置决策的结果包括以下信息 中的任一或任意多项： 配置的频点， 带宽， 配置时间， 最大允许发射功率。
本发明还提供了一种认知无线电系统频谱资源配置装置， 包括： 请求接收模块， 设置为： 接收次级用户设备发送的空闲频谱资源请求信 息， 所述空闲频谱资源请求信息指示所述次级用户设备对空闲频谱资源的需 求；
配置决策模块， 设置为： 根据所述次级用户设备的空闲频谱资源历史配 置信息和当前空闲频谱资源情况信息， 对所述次级用户设备进行空闲频谱资 源配置决策。
优选的， 该装置还包括：
历史信息获取模块， 设置为： 获取所述次级用户设备的空闲频谱资源历 史配置信息， 所述空闲频谱资源历史配置信息指所述次级用户设备对主系统 空闲频谱资源的历史使用信息及使用空闲频谱资源所达到的网络性能信息。
优选的， 所述配置决策模块包括：
主系统空闲频谱情况获取单元， 设置为： 从保存主系统频谱资源使用情 况的数据库中获取或通过次级用户设备的测量上报中获取所述主系统空闲频 谱情况信息；
需求转化单元， 设置为： 将空闲频谱请求原因信息和 /或空闲频谱配置目 标信息转化成所述次级用户设备对空闲频谱的性能需求；
资源选择单元， 设置为： 根据所述次级用户设备对空闲频谱资源的历史 配置中所能达到的性能， 为所述次级用户设备在空闲频谱列表中选择满足性 能需求的空闲频谱资源， 或者，
依据历史配置中所能达到的性能高低，将空闲频谱资源进行优先级排序， 为所述次级用户设备选择空闲频谱资源。
优选的， 该装置还包括： 配置决策下发模块， 设置为： 将对所述次级用 户设备的空闲频谱资源配置决策的结果发送给所述次级用户设备， 该空闲频 谱重配置决策的结果包括以下信息中的任一或任意多项： 配置的频点，带宽， 配置时间， 最大允许发射功率。
本发明实施例提供了一种认知无线电系统频谱资源配置方法和装置， 重 配置管理节点接收次级用户设备发送的空闲频谱资源请求信息， 所述空闲频 谱资源请求信息指示所述次级用户设备对空闲频谱资源的需求， 所述重配置 管理节点根据所述次级用户设备的空闲频谱资源历史配置信息和当前空闲频 谱资源情况信息， 对所述次级用户设备进行空闲频谱资源配置决策。 实现了 基于历史数据的更高效的空闲频谱资源配置决策， 解决了现有资源配置方式 影响系统稳定性的问题。 附图概述
图 1 为主系统干 4尤保护示意图；
图 2为 次级系统间干扰共存示意图；
图 3为本发明的实施例的提供的一种认知无线电系统频谱资源配置方法 的流程图；
图 4 为 TVWS频段 CR技术系统架构示意图；
图 5 为本发明的实施例一和二提供的一种认知无线电系统频谱资源配 置方法的流程示意图；
图 6为本发明的实施例三和四提供的一种认知无线电系统频谱资源配置 方法的流程示意图；
图 7 为本发明的实施例五提供的一种认知无线电系统频谱资源配置方 法的流程示意图；
图 8为本发明的实施例六提供的一种认知无线电系统频谱资源配置装置 的结构示意图；
图 9为图 8中配置决策模块 802的结构示意图。
本发明的较佳实施方式 相关技术中， 每一次频谱资源重配置都需要进行重新的决策， 而并没有 利用之前已有的频谱资源重配置经验数据， 这样的每一次频谱资源重配置过 程都涉及相关信息的获取与处理， 计算得出配置参数等一系列操作， 这将使 系统耗费比较大的处理开销， 配置时延， 及相关信令交互的开销。 另外， 做 出的重配置决策由于没有经过实际配置的检验， 未必能够达到次级用户重配 置的目标， 或者需要根据实际配置效果进一步修正重配置决策方案。 这将使 次级系统的稳定性受到影响。
为了解决上述问题， 本发明的实施例提供了一种认知无线电系统频谱资 源配置方法和装置。 下文中将结合附图对本发明的实施例进行详细说明。 需 要说明的是， 在不冲突的情况下， 本申请中的实施例及实施例中的特征可以 相互任意组合。
本发明实施例提供的技术方案如图 3所示， 包括：
步骤 301、 重配置管理节点获取所述次级用户设备的空闲频谱资源历史 配置信息， 所述空闲频谱资源历史配置信息指所述次级用户设备对主系统空 闲频谱资源的历史使用信息及使用空闲频谱资源所达到的网络性能信息； 具体的， 所述空闲频谱资源历史配置信息在次级用户设备完成空闲频谱 资源配置后， 通过次级用户设备自身的测量， 或次级用户设备所属次级系统 的网络管理系统的性能统计得到， 并由次级用户设备或网络管理系统发送给 重配置管理节点；
所述空闲频谱资源历史配置信息包括以下信息中的任一或任意多项： 配置空闲频谱的频点， 配置空闲频谱的带宽， 次级用户设备的位置， 次 级用户设备的标识， 次级用户设备的发射功率， 资源用户设备的天线参数， 使用时长， 在空闲频谱上的 SINR, 服务信号接收功率， 干扰功率， 次级用 户设备配置空闲频语后的网络性能信息；
所述网络性能信息包括以下信息中的任一或任意多项： 空闲频谱小区的 吞吐量，传输速率，误码率，误块率，覆盖率， RRC连接建立成功率， E-RAB 建立成功率， E-RAB建立阻塞率， 掉话率， 切换成功率。
步骤 302、 重配置管理节点接收次级用户设备发送的空闲频谱资源请求 信息， 所述空闲频谱资源请求信息指示所述次级用户设备对空闲频谱资源的 需求；
所述空闲频谱资源请求信息包括以下信息中的任一或任意多项： 空闲频谱请求指示信息， 空闲频语请求原因信息， 空闲频谱配置目标信 息。
所述空闲频语请求指示信息包括以下信息中的任一或任意多项： 次级用 户设备位置， 设备类型， 设备参数， 对空闲频谱频点的需求， 对空闲频谱带 宽的需求， 对空闲频谱空闲时长的需求， 对空闲频语发射功率的需求，
其中所述设备参数包括以下信息中的一项或多项： 发射机发射模板， 邻 道泄漏比 ACLR, 发射增益， 天线高度， 天线方向角， 俯仰角， 下倾角， 极 化方式。
所述空闲频语请求原因信息指示触发次级用户设备进行空闲频语请求的 原因， 包括以下任一或任意多项内容： 网络负载过载， 覆盖范围未达预期， 越区覆盖， 通信干扰高于预设门限， 服务信号接收功率低于预设门限， SINR 低于预设门限， 网络性能参数未达要求；
网络性能参数未达要求包括以下任一或任意多项信息： 吞吐量低于预设 门限， 传输速率低于预设门限， 误码率和 /或误块率和 /或掉话率高于预设门 限， RRC连接建立成功率和 /或 E - RAB连接建立成功率低于预设门限， E - RAB建立阻塞率高于预设门限， 切换成功率低于预设门限。
所述空闲频谱配置目标信息指示次级用户设备期望配置空闲频语后网络 所达到的性能指标， 包括以下任一项或任意多项内容： 频谱资源满足网络负 载需求， 覆盖满足要求， 通信链路干扰低于预设门限， 服务信号接收功率满 足最小接收门限要求， SINR高于预设门限， 网络性能参数达到要求。
步骤 303、 所述重配置管理节点根据所述次级用户设备的空闲频谱资源 历史配置信息和当前空闲频谱资源情况信息， 对所述次级用户设备进行空闲 频谱资源配置决策；
所述当前空闲频谱资源情况信息指示当前次级用户设备所在位置上主系 统空闲频谱情况信息以及所述空闲频谱上的干扰情况信息。 本步骤具体包括： 从保存主系统频谱资源使用情况的数据库中获取或通过次级用户设备的 测量上报中获取所述主系统空闲频谱情况信息；
将空闲频谱请求原因信息和 /或空闲频谱配置目标信息转化成所述次级 用户设备对空闲频谱的性能需求；
根据所述次级用户设备对空闲频谱资源的历史配置中所能达到的性能， 为所述次级用户设备在空闲频谱列表中选择满足性能需求的空闲频谱资源， 或者，
依据历史配置中所能达到的性能高低，将空闲频谱资源进行优先级排序， 为所述次级用户设备选择空闲频谱资源。
步骤 304、 所述重配置管理节点将对所述次级用户设备的空闲频谱资源 配置决策的结果发送给所述次级用户设备， 该空闲频谱重配置决策的结果包 括以下信息中的任一或任意多项：
配置的频点， 带宽， 配置时间， 最大允许发射功率。
其中， 所涉及的重配置管理节点指负责次级系统频谱资源重配置管理的 功能实体， 可以是以下功能实体中的任一项： 频谱协调器 （SC, Spectrum Controller ) , 中心控制节点 （CCP, Central Control Point ) , 重配管理模块 ( Reconfiguration Management module ) 、 重西己功能模块 ( Reconfiguration Function module ) 、 重配实体 ( Reconfiguration Entity ) 、 先进的定位实体、 先进的定位功能、 共存功能。
典型的主系统空闲频语资源 , 如 TVWS频谱， 即 470MHz-790MHz范围 内主系统未使用的频谱资源。 本发明中， 以 TVWS频谱为例进行描述。 主用 户保护管理节点以 GLDB 为例， 次级系统间干扰共存的重配置管理节点以 SC为例。 TVWS频段 CR技术的架构如图 4所示， 介绍如下。
GLDB负责主系统保护， 为次级用户设备或次级系统管理节点提供主系 统频语使用情况， 避免主系统受到次级系统的干扰。 具体的， 为次级用户设 备提供其所在位置上的空闲频谱资源， 并根据主用户保护准则， 计算次级用 户设备所允许的最大发射功率； SC为次级系统频谱资源重配置管理节点，负责各次级用户设备间的共存 管理， 优先级管理， 及测量管理。
BS为次级用户设备， 其可代表 LTE, 3G系统， 2G系统等蜂窝网系统下 的基站， 或者 WLAN, WRAN, Wimax等 IEEE802系统下的接入点 （AP, Access Point ) 。
实施例一
本发明实施例提供了一种认知无线电系统频谱资源配置方法， 以 SC作 为重配置管理节点为例进行说明。 SC依据 BS空闲频谱重配置目标信息， 主 系统频谱的使用情况信息， 及次级用户设备对主系统空闲频谱资源的历史配 置情况信息， 为该次级用户设备做频谱资源重配置决策的流程如图 5所示， 下面做具体描述：
步骤 501 : SC获取并存储 BS上报的空闲频谱资源历史配置信息； 空闲频谱资源历史配置信息， 是指 BS此前使用主系统空闲频谱资源时 的配置情况信息； 包括以下信息中的一项或多项： 配置空闲频谱的频点， 配 置空闲频谱的带宽， 次级用户设备的位置， 次级用户设备的标识， 次级用户 设备的发射功率， 资源用户设备的天线参数， 使用时长， 在空闲频谱上的 SINR, 服务信号接收功率， 干扰功率， 次级用户设备配置空闲频语后的网络 性能信息；
次级用户设备配置空闲频谱后的网络性能信息是指次级用户 /系统利用 主系统空闲频谱资源， 建立的空闲频谱小区的通信性能参数； 包括但不限于 以下信息中的一项或多项： 空闲频谱小区的吞吐量， 传输速率， 误码率， 误 块率， 覆盖率， RRC连接建立成功率， E-RAB建立成功率， E-RAB建立阻 塞率， 掉话率， 切换成功率。
本实施例中， BS上^艮在频段 530, 560, 480MHz上的历史配置信息， 如表 1所示：
表 1
Figure imgf000012_0001
BS L 1 01 fl=530 8 40dBm 5% 60Mbit/s 99%
BS L 1 01 f2=560 8 30dBm 2% 80Mbit/s 99%
BS L 1 01 β=480 8 40dBm 1% 40Mbit/s 99%
步骤 502: BS发起空闲频语请求， 并上报空闲频谱重配置目标;
本步骤中， BS向 SC发送空闲频谱资源请求信息， 所述空闲频谱资源请 求信息包括以下信息中的任一或任意多项： 空闲频语请求指示信息， 空闲频 语请求原因信息， 空闲频谱配置目标信息。 所述空闲频语请求指示信息包括以下信息中的任一或任意多项： 次级用 户设备位置， 设备类型， 设备参数， 对空闲频谱频点的需求， 对空闲频谱带 宽的需求， 对空闲频谱空闲时长的需求， 对空闲频语发射功率的需求，
其中所述设备参数包括以下信息中的一项或多项： 发射机发射模板， 邻 道泄漏比 ACLR, 发射增益， 天线高度， 天线方向角， 俯仰角， 下倾角， 极 化方式。
所述空闲频语请求原因信息指示触发次级用户设备进行空闲频语请求的 原因， 包括以下任一或任意多项内容： 网络负载过载， 覆盖范围未达预期， 越区覆盖， 通信干扰高于预设门限， 服务信号接收功率低于预设门限， SINR 低于预设门限， 网络性能参数未达要求。
所述网络性能参数未达要求包括以下任一或任意多项信息： 吞吐量低于 预设门限， 传输速率低于预设门限， 误码率和 /或误块率和 /或掉话率高于预 设门限， RRC连接建立成功率和 /或 E - RAB连接建立成功率低于预设门限， E - RAB建立阻塞率高于预设门限， 切换成功率低于预设门限。
所述空闲频谱配置目标信息指示次级用户设备期望配置空闲频语后网络 所达到的性能指标， 包括以下任一项或任意多项内容： 频谱资源满足网络负 载需求， 覆盖满足要求， 通信链路干扰低于预设门限， 服务信号接收功率满 足最小接收门限要求， SINR高于预设门限， 网络性能参数达到要求。
即 BS向 SC发送空闲频谱资源请求信息，其中包括：位置 L 1 ,标识 01 , 及设备参数， 包括技术标识（LTE ) , 设备类型（固定设备）， 发射级别（发 射功率级别） ， 天线参数（高度、 天线方向角、 俯仰角、 无线极化性） ， 发 射模板（ACLR )等； 空闲频谱重配置目标为： 误码率低于 3%, 传输速率高 于 50Mbit/s, 切换成功率高于 95%。
BS上报的天线参数供 GLDB根据主用户保护要求为 BS计算最大允许发 射功率， 及 SC依据 BS间共存原则为 BS计算满足 BS间共存的发射功率时 使用。
步骤 503: 根据空闲频谱资源申请消息， SC访问 GLDB获取此时刻 BS 所在位置上的主系统空闲频谱资源信息；
本步骤中， 所述主系统空闲频谱资源信息即为当前空闲频谱资源情况信 息，具体访问过程为： SC发送 BS的位置信息，天线参数信息给 GLDB, GLDB 查找存储的该位置上的主用户频谱资源使用情况， 发现存在 fl、 f2、 β、 f4=710MHz四段可用频谱资源， 且根据 BS的天线参数， 及各主用户保护准 则计算得出各频谱资源上的最大允许发射功率分别为： 40dBm, 30dBm, 40dBm, 30dBm。 GLDB将上述信息反馈给 SC。 如下面空闲频谱资源列表所 示：
表 2
Figure imgf000014_0001
步骤 504: SC进行空闲频谱资源配置决策；
根据获取到的空闲频谱资源列表（表 2 ) (即当前空闲频谱资源情况信 息， 所述当前空闲频谱资源情况信息指示当前次级用户设备所在位置上主系 统空闲频谱情况信息以及所述空闲频谱上的干扰情况信息） ， 及已有 BS历 史配置情况信息 （表 1 ) , 确定当 BS使用 f2=560MHz时， 可以满足性能需 求； 因此决定配置频谱为 f2=560MHz, 带宽 8MHz, 最大允许发射功率为 30dBm。
将上述空闲频谱资源配置决策结果形成 BS能识别的消息。
步骤 505： SC将空闲频谱资源配置决策的结果发送给 B S。
本实施例中， 次级系统以误码率， 传输速率， 切换成功率作为衡量系统 性能的参数， 其他参数如空闲频谱小区的吞吐量、 误块率、 覆盖率、 RRC连 接建立成功率、 E-RAB建立成功率、 E-RAB建立阻塞率、掉话率均可以作为 性能参数。 另外， 如果空闲频谱历史配置中所达到的性能指标， 均不能满足 次级系统的性能需求， 则选择性能最优的配置给 BS; 或者向 BS提供所有空 闲频谱资源信息， 由 BS选择空闲频谱； 或者， 放弃为 BS配置频谱。
实施例二 本发明实施例提供了一种认知无线电系统频谱资源配置方法， 以 SC作 为重配置管理节点为例进行说明。 SC依据主系统频谱的使用情况信息，及次 级用户设备对主系统空闲频谱资源的历史配置情况信息， 为该次级用户设备 做频谱资源重配置决策的另一实施例流程如图 5所示， 下面做具体描述： 步骤 501 : 与方法实施例一中步骤 501的具体实施相同， 这里不再赘述。 步骤 502: BS发起空闲频语请求， 并上报空闲频谱重配置目标； 本步骤中， BS向 SC发送空闲频谱资源请求信息， 所述空闲频谱资源请 求信息包括以下信息中的任一或任意多项： 空闲频语请求指示信息， 空闲频 语请求原因信息， 空闲频谱配置目标信息。 所述空闲频语请求指示信息包括以下信息中的任一或任意多项： 次级用 户设备位置， 设备类型， 设备参数， 对空闲频谱频点的需求， 对空闲频谱带 宽的需求， 对空闲频谱空闲时长的需求， 对空闲频语发射功率的需求，
其中所述设备参数包括以下信息中的一项或多项： 发射机发射模板， 邻 道泄漏比 ACLR, 发射增益， 天线高度， 天线方向角， 俯仰角， 下倾角， 极 化方式。
所述空闲频语请求原因信息指示触发次级用户设备进行空闲频语请求的 原因， 包括以下任一或任意多项内容： 网络负载过载， 覆盖范围未达预期， 越区覆盖， 通信干扰高于预设门限， 服务信号接收功率低于预设门限， SINR 低于预设门限， 网络性能参数未达要求。
所述网络性能参数未达要求包括以下任一或任意多项信息： 吞吐量低于 预设门限， 传输速率低于预设门限， 误码率和 /或误块率和 /或掉话率高于预 设门限， RRC连接建立成功率和 /或 E - RAB连接建立成功率低于预设门限， E - RAB建立阻塞率高于预设门限， 切换成功率低于预设门限。
所述空闲频谱配置目标信息指示次级用户设备期望配置空闲频语后网络 所达到的性能指标， 包括以下任一项或任意多项内容： 频谱资源满足网络负 载需求， 覆盖满足要求， 通信链路干扰低于预设门限， 服务信号接收功率满 足最小接收门限要求， SINR高于预设门限， 网络性能参数达到要求。
即 BS向 SC发送空闲频谱重配置请求信息，及空闲频谱重配置目标信息， 其中包括： 位置 L 1 , 标识 01 , 及天线参数； 这里的天线参数供 GLDB根据 主用户保护要求为 BS计算最大允许发射功率， 及 SC依据 BS间共存原则为 BS计算满足 BS间共存的发射功率时使用。 空闲频谱重配置目标为： 误码率 低于 3%, 传输速率高于 50Mbit/s, 切换成功率高于 95%。
步骤 503: 与方法实施例一中步骤 503的具体实施相同， 这里不再赘述。 步骤 504: SC进行空闲频谱资源配置决策；
根据获取到的空闲频谱资源列表（表 2 ) , 及已有 BS历史配置情况信息 (表 1 ) , 为 BS选择性能最优的空闲频语作为 BS的配置频谱； 根据 BS历 史配置信息可知， BS配置在 f2=560MHz时， 可以获得最大的传输速率； 当 BS配置在 β=480ΜΗζ, 可以获得最小的误码率。 可以根据系统的配置， 如， 系统规定以最小误码率为原则，则 SC为 BS选择 β=480ΜΗζ作为配置频谱， 带宽 8MHz, 最大允许发射功率为 40dBm。
将上述空闲频谱资源配置决策结果形成 BS能识别的消息；
步骤 505： SC将空闲频谱资源配置决策的结果发送给 B S。
本发明实施例的步骤 504中， SC也可以不为 BS选定频谱， 即将所有空 闲频谱， 及预计能达到的性能发送给 BS, 由 BS选择配置频谱。
实施例三
本发明实施例提供了一种认知无线电系统频谱资源配置方法， 以 SC作 为重配置管理节点为例进行说明。 SC基于空闲频谱重配置请求原因信息（干 扰超过预设门限）， 为 BS做频谱资源重配置决策的实施例流程如图 6所示， 下面做具体描述：
步骤 601 : SC获取并存储 BS上报的空闲频谱资源历史配置信息； 空闲频谱资源历史配置信息，是指 BS此前使用主系统空闲频谱资源时， 配置情况信息； 包括以下信息中的一项或多项： 配置空闲频语的频点， 配置 空闲频谱的带宽， 次级用户设备的位置， 次级用户设备的标识， 次级用户设 备的发射功率，资源用户设备的天线参数，使用时长，在空闲频谱上的 SINR, 服务信号接收功率， 干扰功率， 次级用户设备配置空闲频语后的网络性能信 息；
次级用户设备配置空闲频谱后的网络性能信息是指次级用户 /系统利用 主系统空闲频谱资源， 建立的空闲频谱小区的通信性能参数； 包括但不限于 以下信息中的一项或多项： 空闲频谱小区的吞吐量， 传输速率， 误码率， 误 块率， 覆盖率， RRC连接建立成功率， E-RAB建立成功率， E-RAB建立阻 塞率， 掉话率， 切换成功率。
本实施例中， BS上^艮在频段 530, 560, 480MHz上的历史配置信息， 如表 3所示：
表 3
Figure imgf000017_0001
步骤 602: BS发起空闲频语请求， 并上报空闲频谱重配置请求原因； 本步骤中， BS向 SC发送空闲频谱资源请求信息， 所述空闲频谱资源请 求信息包括以下信息中的任一或任意多项： 空闲频语请求指示信息， 空闲频 语请求原因信息， 空闲频谱配置目标信息。 所述空闲频语请求指示信息包括以下信息中的任一或任意多项： 次级用 户设备位置， 设备类型， 设备参数， 对空闲频谱频点的需求， 对空闲频谱带 宽的需求， 对空闲频谱空闲时长的需求， 对空闲频语发射功率的需求，
其中所述设备参数包括以下信息中的一项或多项： 发射机发射模板， 邻 道泄漏比 ACLR, 发射增益， 天线高度， 天线方向角， 俯仰角， 下倾角， 极 化方式。
所述空闲频语请求原因信息指示触发次级用户设备进行空闲频语请求的 原因， 包括以下任一或任意多项内容： 网络负载过载， 覆盖范围未达预期， 越区覆盖， 通信干扰高于预设门限， 服务信号接收功率低于预设门限， SINR 低于预设门限， 网络性能参数未达要求。
所述网络性能参数未达要求包括以下任一或任意多项信息： 吞吐量低于 预设门限， 传输速率低于预设门限， 误码率和 /或误块率和 /或掉话率高于预 设门限， RRC连接建立成功率和 /或 E - RAB连接建立成功率低于预设门限， E - RAB建立阻塞率高于预设门限， 切换成功率低于预设门限。
所述空闲频谱配置目标信息指示次级用户设备期望配置空闲频语后网络 所达到的性能指标， 包括以下任一项或任意多项内容： 频谱资源满足网络负 载需求， 覆盖满足要求， 通信链路干扰低于预设门限， 服务信号接收功率满 足最小接收门限要求， SINR高于预设门限， 网络性能参数达到要求。
即 BS向 SC发送空闲频谱资源请求信息，其中包括：位置 L 1 ,标识 01 , 及设备参数， 包括技术标识（LTE ) , 设备类型（固定设备）， 发射级别（发 射功率级别） ， 天线参数（高度、 天线方向角、 俯仰角、 无线极化性） ， 发 射模板 ( ACLR )等； BS 上报的天线参数供 GLDB根据主用户保护要求为 BS计算最大允许发射功率，及 SC依据 BS间共存原则为 BS计算满足 BS间 共存的发射功率时使用。
空闲频谱重配置请求原因为： 通信链路干扰高于预设门限 Imax, 该门限 根据次级系统的干扰容忍设定， 实际干扰值高于该门限则系统无法满足性能 要求。 本实施例中 Imax=-20dBm。
通信链路上的干扰高于预设门限通过次级用户设备的网络性能监测得到 的， 如网络通过性能监测发现以下情况之一： 传输速率低于预设门限， 误码 率、 误块率、 掉话率高于预设门限、 RRC连接建立成功率、 E-RAB建立成功 率低于预设门限、 E-RAB建立阻塞率高于预设门限、 切换成功率低于预设门 限， 进一步判断原因， 确定为通信链路上的干扰值高于 Imax, 则触发空闲频 谱重配置请求。
步骤 603: 根据空闲频谱资源申请消息， SC访问 GLDB获取此时刻 BS 所在位置上的主系统空闲频谱资源信息；
本步骤中， 所述主系统空闲频谱资源信息即为当前空闲频谱资源情况信 息，具体访问过程为： SC发送 BS的位置信息，天线参数信息给 GLDB, GLDB 查找存储的该位置上的主用户频谱资源使用情况， 发现存在 fl、 f2、 β、 f4=710MHz四段可用频谱资源， 且根据 BS的天线参数， 及各主用户保护准 则计算得出各频谱资源上的最大允许发射功率分别为： 40dBm, 30dBm, 40dBm, 30dBm。 GLDB将上述信息反馈给 SC。 如下面空闲频谱资源列表所 示：
表 4
Figure imgf000019_0001
步骤 604: SC进行空闲频谱资源配置决策；
根据获取到的空闲频谱资源列表（表 4 ) , 及已有 BS历史配置情况信息 (表 3 ) ,确定当 BS使用 fl、 £2时，边缘用户受到干扰值为 -20dBm, -lOdBm, 均不能满足最大干扰容忍的要求， 而 β=480ΜΗζ上， 根据表 3 , 边缘用户受 到的干扰值为 -30dBm , 因此可以满足性能需求； 因此决定配置频谱为 β=480ΜΗζ, 带宽 8MHz, 最大允许发射功率为 40dBm。
将上述空闲频谱资源配置决策结果形成 BS能识别的消息； 步骤 605 : SC将空闲频谱资源配置决策的结果发送给 B S。
本实施例中， 次级系统以干扰值大于预设门限作为空闲频谱重配置请求 的原因触发本次频谱资源重配置决策流程。 其他原因如网络负载过载， 覆盖 范围未达预期， 越区覆盖， 小区边缘用户服务信号功率低于预设门限， 小区 平均 SINR低于预设门限均可以作为重配置请求的原因。
另外， 如果空闲频谱历史配置中所达到的性能指标， 均不能满足次级系 统的性能需求， 则选择性能最优的配置给 BS; 或者向 BS提供所有空闲频谱 资源信息， 由 BS选择空闲频谱； 或者， 放弃为 BS配置频谱。
实施例四
本发明实施例提供了一种认知无线电系统频谱资源配置方法， 以 SC作 为重配置管理节点为例进行说明。 SC基于空闲频谱重配置请求原因信息（小 区边缘用户的平均 SINR低于预设门限） ， 为 BS1做频谱资源重配置决策的 实施例流程如图 6所示， 下面做具体描述：
步骤 601 : SC获取并存储 BS上报的空闲频谱资源历史配置信息； 空闲频谱资源历史配置信息， 是指 BS此前使用主系统空闲频谱资源时 的配置情况信息； 包括以下信息中的一项或多项： 配置空闲频谱的频点， 配 置空闲频谱的带宽， 次级用户设备的位置， 次级用户设备的标识， 次级用户 设备的发射功率， 资源用户设备的天线参数， 使用时长， 在空闲频谱上的 SINR, 服务信号接收功率， 干扰功率， 次级用户设备配置空闲频语后的网络 性能信息；
次级用户设备配置空闲频谱后的网络性能信息是指次级用户 /系统利用 主系统空闲频谱资源， 建立的空闲频谱小区的通信性能参数； 包括但不限于 以下信息中的一项或多项： 空闲频谱小区的吞吐量， 传输速率， 误码率， 误 块率， 覆盖率， RRC连接建立成功率， E-RAB建立成功率， E-RAB建立阻 塞率， 掉话率， 切换成功率。
本实施例中， BS上^艮在频段 530, 560, 480MHz上的历史配置信息， 如表 5所示：
表 5 站点 标识 频点 MHz 带宽 MHz 发射功率 平均 SINR
BS L 1 01 fl=530 8 40dBm lOdB
BS L 1 01 f2=560 8 30dBm 5dB
BS L 1 01 β=480 8 40dBm -5dB
步骤 602: BS发起空闲频语请求， 并上报空闲频谱重配置请求原因; 本步骤中， BS向 SC发送空闲频谱资源请求信息， 所述空闲频谱资源请 求信息包括以下信息中的任一或任意多项： 空闲频语请求指示信息， 空闲频 语请求原因信息， 空闲频谱配置目标信息。 所述空闲频语请求指示信息包括以下信息中的任一或任意多项： 次级用 户设备位置， 设备类型， 设备参数， 对空闲频谱频点的需求， 对空闲频谱带 宽的需求， 对空闲频谱空闲时长的需求， 对空闲频语发射功率的需求，
其中所述设备参数包括以下信息中的一项或多项： 发射机发射模板， 邻 道泄漏比 ACLR, 发射增益， 天线高度， 天线方向角， 俯仰角， 下倾角， 极 化方式。
所述空闲频语请求原因信息指示触发次级用户设备进行空闲频语请求的 原因， 包括以下任一或任意多项内容： 网络负载过载， 覆盖范围未达预期， 越区覆盖， 通信干扰高于预设门限， 服务信号接收功率低于预设门限， SINR 低于预设门限， 网络性能参数未达要求。
所述网络性能参数未达要求包括以下任一或任意多项信息： 吞吐量低于 预设门限， 传输速率低于预设门限， 误码率和 /或误块率和 /或掉话率高于预 设门限， RRC连接建立成功率和 /或 E - RAB连接建立成功率低于预设门限， E - RAB建立阻塞率高于预设门限， 切换成功率低于预设门限。
所述空闲频谱配置目标信息指示次级用户设备期望配置空闲频语后网络 所达到的性能指标， 包括以下任一项或任意多项内容： 频谱资源满足网络负 载需求， 覆盖满足要求， 通信链路干扰低于预设门限， 服务信号接收功率满 足最小接收门限要求， SINR高于预设门限， 网络性能参数达到要求。
即 BS向 SC发送空闲频谱资源请求信息，其中包括：位置 L 1 ,标识 01 , 及设备参数， 包括技术标识（LTE ) , 设备类型（固定设备）， 发射级别（发 射功率级别） ， 天线参数（高度、 天线方向角、 俯仰角、 无线极化性） ， 发 射模板 ( ACLR )等； BS 上报的天线参数供 GLDB根据主用户保护要求为 BS计算最大允许发射功率，及 SC依据 BS间共存原则为 BS计算满足 BS间 共存的发射功率时使用。
空闲频谱重配置请求原因为： 小区边缘用户的平均 SINR低于预设门限 -7.5dB, 该门限根据次级系统的 SINR最低要求设定， 实际 SINR值低于该门 限则系统釆用任何编码调制方式都无法满足性能要求。 本实施例中 SINR门 限为 -7.5dB。
步骤 603: 根据空闲频谱资源申请消息， SC访问 GLDB获取此时刻 BS 所在位置上的主系统空闲频谱资源信息；
本步骤中， 所述主系统空闲频谱资源信息即为当前空闲频谱资源情况信 息，具体访问过程为： SC发送 BS的位置信息，天线参数信息给 GLDB, GLDB 查找存储的该位置上的主用户频谱资源使用情况， 发现存在 fl、 £2、 β三段 可用频谱资源， 且根据 BS的天线参数， 及各主用户保护准则计算得出各频 谱资源上的最大允许发射功率分别为： 40dBm, 40dBm, 30dBm。 GLDB将 上述信息反馈给 SC。 如下面空闲频谱资源列表所示：
表 6
Figure imgf000022_0001
步骤 604: SC进行空闲频谱资源配置决策；
根据获取到的空闲频谱资源列表（表 6 ) , 及已有 BS历史配置情况信息 (表 5 ) , 选取各空闲频谱中小区边缘用户的平均 SINR值最大的作为重配 置目标频谱， 则 fl 当发射功率为 40dBm时小区边缘用户的品均 SINR值可 达到 10dB。
将上述空闲频谱资源配置决策结果形成 BS能识别的消息；
步骤 605： SC将空闲频谱资源配置决策的结果发送给 B S。
本实施例中， 次级系统以小区边缘用户平均 SINR小于预设门限作为空 闲频谱重配置请求的原因触发本次频谱资源重配置决策流程。 其他原因如网 络负载过载， 覆盖范围未达预期， 越区覆盖， 通信链路干扰高于预设门限， 小区边缘用户服务信号功率低于预设门限均可以作为重配置请求的原因。
另外， 如果空闲频谱历史配置中所达到的性能指标， 均不能满足次级系 统的性能需求， 则选择性能最优的配置给 BS; 或者向 BS提供所有空闲频谱 资源信息， 由 BS选择空闲频谱； 或者， 放弃为 BS配置频谱。
实施例五
本发明实施例提供了一种认知无线电系统频谱资源配置方法， 以 SC作 为重配置管理节点为例进行说明。 SC基于空闲频谱重配置请求原因信息 (覆 盖范围未达预期），为 BS1做频谱资源重配置决策的实施例流程如图 7所示， 下面做具体描述：
步骤 701 : SC获取并存储 BS上报的空闲频谱资源历史配置信息； 空闲频谱资源历史配置信息，是指 BS此前使用主系统空闲频谱资源时， 配置情况信息； 包括以下信息中的一项或多项： ： 配置空闲频语的频点， 配 置空闲频谱的带宽， 次级用户设备的位置， 次级用户设备的标识， 次级用户 设备的发射功率， 资源用户设备的天线参数， 使用时长， 在空闲频谱上的 SINR, 服务信号接收功率， 干扰功率， 次级用户设备配置空闲频语后的网络 性能信息；
次级用户设备配置空闲频谱后的网络性能信息是指次级用户 /系统利用 主系统空闲频谱资源， 建立的空闲频谱小区的通信性能参数； 包括但不限于 以下信息中的一项或多项： 空闲频谱小区的吞吐量， 传输速率， 误码率， 误 块率， 覆盖率， RRC连接建立成功率， E-RAB建立成功率， E-RAB建立阻 塞率， 掉话率， 切换成功率。
本实施例中， BS上^艮在频段 530, 560, 480MHz上的历史配置信息， 如表 7所示：
表 7
Figure imgf000024_0001
步骤 702: BS发起空闲频语请求， 并上报空闲频谱重配置请求原因; 本步骤中， BS向 SC发送空闲频谱资源请求信息， 所述空闲频谱资源请 求信息包括以下信息中的任一或任意多项： 空闲频语请求指示信息， 空闲频 语请求原因信息， 空闲频谱配置目标信息。
所述空闲频语请求指示信息包括以下信息中的任一或任意多项： 次级用 户设备位置， 设备类型， 设备参数， 对空闲频谱频点的需求， 对空闲频谱带 宽的需求， 对空闲频谱空闲时长的需求， 对空闲频语发射功率的需求，
其中所述设备参数包括以下信息中的一项或多项： 发射机发射模板， 邻 道泄漏比 ACLR, 发射增益， 天线高度， 天线方向角， 俯仰角， 下倾角， 极 化方式。
所述空闲频语请求原因信息指示触发次级用户设备进行空闲频语请求的 原因， 包括以下任一或任意多项内容： 网络负载过载， 覆盖范围未达预期， 越区覆盖， 通信干扰高于预设门限， 服务信号接收功率低于预设门限， SINR 低于预设门限， 网络性能参数未达要求。
所述网络性能参数未达要求包括以下任一或任意多项信息： 吞吐量低于 预设门限， 传输速率低于预设门限， 误码率和 /或误块率和 /或掉话率高于预 设门限， RRC连接建立成功率和 /或 E - RAB连接建立成功率低于预设门限， E - RAB建立阻塞率高于预设门限， 切换成功率低于预设门限。
所述空闲频谱配置目标信息指示次级用户设备期望配置空闲频语后网络 所达到的性能指标， 包括以下任一项或任意多项内容： 频谱资源满足网络负 载需求， 覆盖满足要求， 通信链路干扰低于预设门限， 服务信号接收功率满 足最小接收门限要求， SINR高于预设门限， 网络性能参数达到要求。
即 BS向 SC发送空闲频谱资源请求信息，其中包括：位置 L 1 ,标识 01 , 及设备参数， 包括技术标识（LTE ) , 设备类型（固定设备）， 发射级别（发 射功率级别） ， 天线参数（高度、 天线方向角、 俯仰角、 无线极化性） ， 发 射模板 ( ACLR )等； BS 上报的天线参数供 GLDB根据主用户保护要求为 BS计算最大允许发射功率，及 SC依据 BS间共存原则为 BS计算满足 BS间 共存的发射功率时使用。
空闲频谱重配置请求原因为：覆盖范围未达预期， 即部分边缘用户 SINR 不满足要求， 不满足覆盖要求。 BS下属空闲频谱 f4=670MHz小区， 边缘用 户的平均 SINR为 -10dB, 不满足服务要求；
步骤 703: 根据空闲频谱资源申请消息， SC访问 GLDB获取此时刻 BS 所在位置上的主系统空闲频谱资源信息；
本步骤中， 所述主系统空闲频谱资源信息即为当前空闲频谱资源情况信 息，具体访问过程为： SC发送 BS的位置信息，天线参数信息给 GLDB, GLDB 查找存储的该位置上的主用户频谱资源使用情况， 发现存在 fl、 f2、 β、 f4=670MHz四段可用频谱资源， 且根据 BS的天线参数， 及各主用户保护准 则计算得出各频谱资源上的最大允许发射功率分别为： 40dBm, 40dBm, 30dBm, 30dBm。 GLDB将上述信息反馈给 SC。 如下面空闲频谱资源列表所 示：
表 8
Figure imgf000025_0001
步骤 704: SC进行空闲频谱资源配置决策; 根据获取到的空闲频谱资源列表（表 8 ) , 及已有 BS历史配置情况信息 (表 7 ) , 目前在空闲频谱 f4上， BS的发射功率为 30dBm, 由于主用户保 护的限制无法再提高发射功率， 因此， f4无法满足 BS的覆盖需求。 需要重 配置频语， 对于空闲频谱 fl-β , SC配置 BS进行信道干扰测量， 得到各空闲 频语上干扰测量结果为： fl : -lOdBm; Ώ: -lOdBm; G : OdBm。 计算得到在 各空闲频谱的最大允许发射功率上限下， BS配置各空闲频谱，边缘用户可获 得的最大平均 SINR (预计 SINR值）为：
表 9
Figure imgf000026_0001
选取各空闲频谱中小区边缘用户的平均 SINR值最大的作为重配置目标 频谱，则 fl当发射功率为 40dBm时小区边缘用户的品均 SINR值可达到 5dB。
将上述空闲频谱资源配置决策结果形成 BS能识别的消息；
步骤 705： SC将空闲频谱资源配置决策的结果发送给 B S。
实施例六
本发明实施例提供了一种认知无线电系统频谱资源配置装置， 该装置的 结构如图 8所示， 包括：
请求接收模块 801 , 用于接收次级用户设备发送的空闲频谱资源请求信 息， 所述空闲频谱资源请求信息指示所述次级用户设备对空闲频谱资源的需 求；
配置决策模块 802, 用于根据所述次级用户设备的空闲频谱资源历史配 置信息和当前空闲频谱资源情况信息， 对所述次级用户设备进行空闲频谱资 源配置决策。
优选的， 该装置还包括： 历史信息获取模块 803 , 用于获取所述次级用户设备的空闲频谱资源历 史配置信息， 所述空闲频谱资源历史配置信息指所述次级用户设备对主系统 空闲频谱资源的历史使用信息及使用空闲频谱资源所达到的网络性能信息。
优选的， 所述配置决策模块 802的结构如图 9所示， 包括：
主系统空闲频谱情况获取单元 8021 ,用于从保存主系统频谱资源使用情 况的数据库中获取或通过次级用户设备的测量上报中获取所述主系统空闲频 谱情况信息；
需求转化单元 8022 , 用于将空闲频谱请求原因信息和 /或空闲频谱配置 目标信息转化成所述次级用户设备对空闲频谱的性能需求；
资源选择单元 8023 ,用于根据所述次级用户设备对空闲频谱资源的历史 配置中所能达到的性能， 为所述次级用户设备在空闲频谱列表中选择满足性 能需求的空闲频谱资源， 或者，
依据历史配置中所能达到的性能高低，将空闲频谱资源进行优先级排序， 为所述次级用户设备选择空闲频谱资源；
优选的， 该装置还包括：
配置决策下发模块 804 , 用于将对所述次级用户设备的空闲频谱资源配 置决策的结果发送给所述次级用户设备， 该空闲频谱重配置决策的结果包括 以下信息中的任一或任意多项：
配置的频点， 带宽， 配置时间， 最大允许发射功率。
上述认知无线电系统频谱资源配置装置可集成于重配置管理节点中， 结 合本发明的实施例一至六任一所提供的认知无线电系统频谱资源配置方法， 由重配置节点完成相应功能。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计 算机程序流程来实现，所述计算机程序可以存储于一计算机可读存储介质中， 所述计算机程序在相应的硬件平台上（如系统、 设备、 装置、 器件等）执行， 在执行时， 包括方法实施例的步骤之一或其组合。
可选地， 上述实施例的全部或部分步骤也可以使用集成电路来实现， 这 些步骤可以被分别制作成一个个集成电路模块， 或者将它们中的多个模块或 步骤制作成单个集成电路模块来实现。 这样， 本发明不限制于任何特定的硬 件和软件结合。
上述实施例中的各装置 /功能模块 /功能单元可以釆用通用的计算装置来 实现， 它们可以集中在单个的计算装置上， 也可以分布在多个计算装置所组 成的网络上。
上述实施例中的各装置 /功能模块 /功能单元以软件功能模块的形式实现 并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。 上述提到的计算机可读取存储介质可以是只读存储器， 磁盘或光盘等。
任何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可轻易想 到变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明的保护范 围应以权利要求所述的保护范围为准。
工业实用性
本发明的实施例提供了一种认知无线电系统频谱资源配置方法和装置， 重配置管理节点接收次级用户设备发送的空闲频谱资源请求信息， 所述空闲 频谱资源请求信息指示所述次级用户设备对空闲频谱资源的需求， 所述重配 置管理节点才艮据所述次级用户设备的空闲频语资源历史配置信息和当前空闲 频谱资源情况信息， 对所述次级用户设备进行空闲频谱资源配置决策。 实现 了基于历史数据的更高效的空闲频谱资源配置决策， 解决了现有资源配置方 式影响系统稳定性的问题。

Claims

权 利 要 求 书
1、 一种认知无线电系统频谱资源配置方法， 包括：
重配置管理节点接收次级用户设备发送的空闲频谱资源请求信息， 所述 空闲频谱资源请求信息指示所述次级用户设备对空闲频谱资源的需求； 所述重配置管理节点根据所述次级用户设备的空闲频谱资源历史配置信 息和当前空闲频谱资源情况信息， 对所述次级用户设备进行空闲频谱资源配 置决策。
2、根据权利要求 1所述的认知无线电系统频谱资源配置方法， 其中， 所 述空闲频谱资源请求信息包括以下信息中的任一或任意多项：
空闲频谱请求指示信息， 空闲频语请求原因信息， 空闲频谱配置目标信 息。
3、根据权利要求 2所述的认知无线电系统频谱资源配置方法， 其中， 所 述空闲频语请求指示信息包括以下信息中的任一或任意多项：
次级用户设备位置， 设备类型， 设备参数， 对空闲频谱频点的需求， 对 空闲频谱带宽的需求， 对空闲频谱空闲时长的需求， 对空闲频语发射功率的 需求，
其中所述设备参数包括以下信息中的一项或多项： 发射机发射模板， 邻 道泄漏比 ACLR, 发射增益， 天线高度， 天线方向角， 俯仰角， 下倾角， 极 化方式。
4、根据权利要求 2所述的认知无线电系统频谱资源配置方法， 其中， 所 述空闲频语请求原因信息指示触发次级用户设备进行空闲频谱请求的原因， 包括以下任一或任意多项内容： 网络负载过载， 覆盖范围未达预期， 越区覆 盖， 通信干扰高于预设门限， 服务信号接收功率低于预设门限， SINR低于 预设门限， 网络性能参数未达要求。
5、根据权利要求 4所述的认知无线电系统频谱资源配置方法， 其中， 所 述网络性能参数未达要求包括以下任一或任意多项信息： 吞吐量低于预设门 限， 传输速率低于预设门限， 误码率和 /或误块率和 /或掉话率高于预设门限，
RRC连接建立成功率和 /或 E - RAB连接建立成功率低于预设门限， E - RAB 建立阻塞率高于预设门限， 切换成功率低于预设门限。
6、根据权利要求 2所述的认知无线电系统频谱资源配置方法， 其中， 所 述空闲频谱配置目标信息指示次级用户设备期望配置空闲频谱后网络所达到 的性能指标， 包括以下任一项或任意多项内容： 频谱资源满足网络负载需求， 覆盖满足要求， 通信链路干扰低于预设门限， 服务信号接收功率满足最小接 收门限要求， SINR高于预设门限， 网络性能参数达到要求。
7、根据权利要求 1所述的认知无线电系统频谱资源配置方法， 其中， 所 述当前空闲频谱资源情况信息指示当前次级用户设备所在位置上主系统空闲 频谱情况信息以及所述空闲频谱上的干扰情况信息。
8、根据权利要求 1所述的认知无线电系统频谱资源配置方法，该方法还 包括： 所述重配置管理节点获取所述次级用户设备的空闲频谱资源历史配置 信息， 所述空闲频谱资源历史配置信息指所述次级用户设备对主系统空闲频 谱资源的历史使用信息及使用空闲频谱资源所达到的网络性能信息。
9、根据权利要求 8所述的认知无线电系统频谱资源配置方法，该方法还 包括：
所述空闲频谱资源历史配置信息在次级用户设备完成空闲频谱资源配置 后， 通过次级用户设备自身的测量， 或次级用户设备所属次级系统的网络管 理系统的性能统计得到， 并由次级用户设备或网络管理系统发送给重配置管 理节点；
所述空闲频谱资源历史配置信息包括以下信息中的任一或任意多项： 配置空闲频谱的频点， 配置空闲频谱的带宽， 次级用户设备的位置， 次 级用户设备的标识， 次级用户设备的发射功率， 资源用户设备的天线参数， 使用时长， 在空闲频谱上的 SINR, 服务信号接收功率， 干扰功率， 次级用 户设备配置空闲频语后的网络性能信息；
所述网络性能信息包括以下信息中的任一或任意多项： 空闲频谱小区的 吞吐量，传输速率，误码率，误块率，覆盖率， RRC连接建立成功率， E-RAB 建立成功率， E-RAB建立阻塞率， 掉话率， 切换成功率。
10、 根据权利要求 9所述的认知无线电系统频谱资源配置方法， 其中， 所述重配置管理节点根据所述次级用户设备的空闲频谱资源历史配置信息和 当前空闲频谱资源情况信息， 对所述次级用户设备进行空闲频谱资源配置决 策包括：
从保存主系统频谱资源使用情况的数据库中获取或通过次级用户设备的 测量上报中获取所述主系统空闲频谱情况信息；
将空闲频谱请求原因信息和 /或空闲频谱配置目标信息转化成所述次级 用户设备对空闲频谱的性能需求；
根据所述次级用户设备对空闲频谱资源的历史配置中所能达到的性能， 为所述次级用户设备在空闲频谱列表中选择满足性能需求的空闲频谱资源， 或者，
依据历史配置中所能达到的性能高低，将空闲频谱资源进行优先级排序， 为所述次级用户设备选择空闲频谱资源。
11、 根据权利要求 10所述的认知无线电系统频谱资源配置方法， 其中， 所述重配置管理节点根据所述次级用户设备的空闲频谱资源历史配置信息和 当前空闲频谱资源情况信息， 对所述次级用户设备进行空闲频谱资源配置决 策的步骤之后， 还包括：
所述重配置管理节点将对所述次级用户设备的空闲频谱资源配置决策的 结果发送给所述次级用户设备， 该空闲频谱重配置决策的结果包括以下信息 中的任一或任意多项： 配置的频点， 带宽， 配置时间， 最大允许发射功率。
12、 一种认知无线电系统频谱资源配置装置， 包括：
请求接收模块， 设置为： 接收次级用户设备发送的空闲频谱资源请求信 息， 所述空闲频谱资源请求信息指示所述次级用户设备对空闲频谱资源的需 求；
配置决策模块， 设置为： 根据所述次级用户设备的空闲频谱资源历史配 置信息和当前空闲频谱资源情况信息， 对所述次级用户设备进行空闲频谱资 源配置决策。
13、根据权利要求 12所述的认知无线电系统频谱资源配置装置，该装置 还包括：
历史信息获取模块， 设置为： 获取所述次级用户设备的空闲频谱资源历 史配置信息， 所述空闲频谱资源历史配置信息指所述次级用户设备对主系统 空闲频谱资源的历史使用信息及使用空闲频谱资源所达到的网络性能信息。
14、 根据权利要求 13所述的认知无线电系统频谱资源配置装置， 其中， 所述配置决策模块包括：
主系统空闲频谱情况获取单元， 设置为： 从保存主系统频谱资源使用情 况的数据库中获取或通过次级用户设备的测量上报中获取所述主系统空闲频 谱情况信息；
需求转化单元， 设置为： 将空闲频谱请求原因信息和 /或空闲频谱配置目 标信息转化成所述次级用户设备对空闲频谱的性能需求；
资源选择单元， 设置为： 根据所述次级用户设备对空闲频谱资源的历史 配置中所能达到的性能， 为所述次级用户设备在空闲频谱列表中选择满足性 能需求的空闲频谱资源， 或者，
依据历史配置中所能达到的性能高低，将空闲频谱资源进行优先级排序， 为所述次级用户设备选择空闲频谱资源。
15、根据权利要求 12所述的认知无线电系统频谱资源配置装置，该装置 还包括：
配置决策下发模块， 设置为： 将对所述次级用户设备的空闲频谱资源配 置决策的结果发送给所述次级用户设备， 该空闲频谱重配置决策的结果包括 以下信息中的任一或任意多项：
配置的频点， 带宽， 配置时间， 最大允许发射功率。
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