WO2013029418A1 - 一种认知无线电中蜂窝网资源重配的方法和系统 - Google Patents
一种认知无线电中蜂窝网资源重配的方法和系统 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 112
- 230000001149 cognitive effect Effects 0.000 title claims abstract description 28
- 230000001413 cellular effect Effects 0.000 title claims abstract description 23
- 238000005259 measurement Methods 0.000 claims description 31
- 238000001228 spectrum Methods 0.000 claims description 22
- 238000004891 communication Methods 0.000 claims description 18
- 238000012790 confirmation Methods 0.000 claims description 10
- 230000001960 triggered effect Effects 0.000 claims description 8
- 238000012937 correction Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 12
- 238000013468 resource allocation Methods 0.000 description 10
- 238000005457 optimization Methods 0.000 description 8
- 238000011084 recovery Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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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
- H04W16/14—Spectrum sharing arrangements between different networks
Definitions
- the present invention relates to resource reconfiguration technology under cellular networks, and more particularly to a method and system for reconfiguring cellular network resources in cognitive radio. Background technique
- CR Cognitive Radio
- FIG. 1 is a schematic diagram of the logical architecture of a cognitive system in a cellular network.
- IMT-Band International Mobile Telecommunication Band
- RRM Radio Resource Manager
- the main purpose of the embodiments of the present invention is to provide a method and system for reconfiguring cellular network resources in cognitive radio, and an overall reconfiguration process is proposed, which can better solve the problems in the reconfiguration process. , is conducive to the optimization of the reconfiguration process.
- the embodiment of the present invention provides a method for reconfiguring a cellular network resource in a cognitive radio, where the method includes: the reconfiguration system sends configuration information to The base station is configured to obtain the available resources. When the trigger condition is met, the reconfiguration system triggers the resource reconfiguration process; the reconfiguration system delivers the resource reconfiguration command to perform resource reconfiguration.
- the available resources include any combination of the following: idle spectrum information, resource utilization of the base station, supported protocol type, location information, and hardware resources for communication processing.
- the method further includes: after receiving the resource reconfiguration command, the base station or the terminal performs measurement on the available resources indicated in the command, And correcting or reconfiguring the resource according to the measurement result; and/or, after the resource reconfiguration succeeds, returning the confirmation message of the reconfiguration completion.
- the measurement result includes any combination of the following: an interference signal, a disturbed frequency band, and location area information.
- the reconfiguration system delivers a resource reconfiguration command to perform resource reconfiguration, specifically: the reconfiguration system determines whether the resource is available, and if yes, and allows resource reconfiguration, the reconfiguration decision is passed.
- the resource reconfiguration command is sent to the base station, so that the base station performs resource reconfiguration and notifies the subordinate terminal.
- the method further includes:
- the reconfiguration system negotiates with other reconfiguration systems that are adjacent or have connections, requests to borrow resources; when the borrowed resources expire; or when the re-allocation system of the borrowed resources is idle; or other re-allocation systems that lend resources, When a resource re-allocation system is requested to return a resource, the resource re-allocation system returns the borrowed resource.
- the reconfiguration system is specifically: a system consisting of network nodes for resource reconfiguration, including: a reconfiguration module and a policy control center.
- the reconfiguration system when the trigger condition is met, the reconfiguration system triggers the resource reconfiguration process, including:
- the reconfiguration system triggers the resource reconfiguration process when the radio resource of the base station is monitored, and/or the hardware resource is idle or the utilization is higher than the first threshold; or a new wireless communication system needs to be deployed to trigger the resource reconfiguration process; or
- An embodiment of the present invention provides a system for reconfiguring a cellular network resource in a cognitive radio, where the resource reconfiguration system includes: a reconfiguration system;
- the reconfiguration system is configured to obtain a resource that can be utilized.
- the trigger condition is met, the resource reconfiguration process is triggered, and the resource reconfiguration command is issued to perform resource reconfiguration.
- system for reconfiguring resources further includes:
- the base station is configured to trigger a resource reconfiguration process when the trigger condition is met.
- the base station is further configured to:
- the reconfiguration system delivers a resource reconfiguration command to perform resource reconfiguration, specifically: the reconfiguration system determines whether the resource is available, and if yes, and allows resource reconfiguration, the reconfiguration decision is passed through the resource.
- the reconfiguration command is sent to the base station, so that the base station performs resource reconfiguration and notifies the subordinate terminal.
- the reconfiguration system determines whether the resource is available, and if the reconfiguration system does not have available resources, negotiates with another reconfiguration system that is adjacent or has a connection, and requests to borrow resources. ;
- the borrowed resource re-allocation system When the borrowing resource expires; or when the resource re-allocation system itself is idle; or the other re-allocation system of the borrowed resource requests the returning resource to the borrowing resource re-allocation system, the borrowed resource re-allocation system returns the borrowed Resources.
- the reconfiguration system triggers a resource reconfiguration process when the trigger condition is met, specifically:
- the triggering resource Source reconfiguration process When the reconfiguration system monitors that the resources of the base station are higher than the first threshold or lower than the second threshold, the triggering resource Source reconfiguration process; or,
- a new communication system needs to be laid out to trigger the resource reconfiguration process when replacing the band resources of the existing communication system.
- a method and system for reconfiguring a cellular network resource in a cognitive radio obtains a resource that can be utilized by a reconfiguration system; when a trigger condition is met, a base station or a reconfiguration system triggers a resource reconfiguration process; The system delivers the resource reconfiguration command to perform resource reconfiguration.
- the reconfiguration sub-phase is divided in the reconfiguration process: reconfiguration preparation phase, reconfiguration initial phase, reconfiguration execution phase, reconfiguration completion phase; further includes: reconfiguration optimization phase; reconfiguration negotiation phase; reconfiguration Recovery phase.
- FIG. 1 is a schematic diagram of a logical architecture of a cognitive system in a cellular network
- FIG. 2 is a schematic flow chart of a method for reconfiguring cellular network resources in cognitive radio according to an embodiment of the present invention
- FIG. 3 is a schematic flowchart of a method for reconfiguring a radio resource according to an embodiment of the present invention
- FIG. 4 is a schematic flowchart of Embodiment 1 of cellular network resource reconfiguration in cognitive radio according to the present invention
- FIG. 5 is a schematic flowchart of Embodiment 2 of cellular network resource reconfiguration in cognitive radio according to the present invention
- FIG. 7 is a schematic flowchart of the reconfiguration recovery phase corresponding to the third embodiment of the present invention
- FIG. 8 is a schematic structural diagram of a system for reconfiguring cellular network resources in cognitive radio according to an embodiment of the present invention. detailed description
- the reconfiguration system acquires the resources that can be utilized; when the trigger condition is met, the base station or the reconfiguration system triggers the resource reconfiguration process; the reconfiguration system delivers the resource reconfiguration The command performs resource reconfiguration.
- FIG. 2 is a schematic flowchart of a method for reconfiguring a cellular network resource in a cognitive radio according to an embodiment of the present invention. As shown in FIG. 2, the method specifically includes the following steps:
- Step 201 The reconfiguration system acquires resources that can be utilized and resources that can be utilized;
- the reconfiguration system is specifically: a system consisting of network nodes for resource reconfiguration, including: a reconfiguration module and a policy control center.
- the obtaining the available resources is specifically: the reconfiguration module in the reconfiguration system sends the measurement configuration information to the affiliated base station according to the indication of the policy control center, performs sensing measurement to obtain the available resources, or reconfigures the system.
- the reconfiguration module directly performs measurement configuration on the base station to obtain idle resources.
- the resources include: hardware resources, and/or wireless resources.
- the specific resources include one or more of the following information: idle spectrum information, resource utilization of the base station, supported protocol type, location information, and the like.
- the hardware resources refer to hardware resources for communication processing, such as a digital signal processor (DSP), and a Field-Programmable Gate Array (FPGA).
- DSP digital signal processor
- FPGA Field-Programmable Gate Array
- the reconfiguration module is located in a different network node, or a single communication system; the reconfiguration module is usually located on the access network side.
- Step 202 When the trigger condition is met, the base station or the reconfiguration system triggers the resource reconfiguration process. Specifically, when the trigger condition is met, the base station or the reconfiguration system triggers the resource reconfiguration process, including: the reconfiguration system monitors the base station. The resource reconfiguration process is triggered when the radio resource and/or the hardware resource is idle or the utilization is higher than the first threshold; or the new radio communication system needs to be deployed to trigger the resource reconfiguration process; or the radio resource of the base station, and / Or when the hardware resource is lower than the second threshold, the request to the reconfiguration system is triggered to trigger the resource reconfiguration process.
- the reconfiguration system when the base station resource allocation is tight, the reconfiguration system is requested to trigger the resource reconfiguration process; or the reconfiguration system detects the resource shortage of the base station, triggers the resource reconfiguration process; or needs to lay out a new communication system, and the existing communication Trigger resource reconfiguration when the system's band resources are replaced Process.
- the resource allocation of the base station itself is tight, and the reconfiguration module in the reconfiguration system may be requested to trigger the resource reconfiguration process; or the reconfiguration module in the reconfiguration system may monitor the resource utilization of the base station, when the resource is tight, Triggers the resource reconfiguration process.
- the policy control center and the reconfiguration module of the reconfiguration system may be triggered to complete the resource reconfiguration process, which specifically addresses the replacement of the resources of the existing system by the new system, which can make the replacement process simpler. Reduces the probability of loss of business data during the replacement process.
- monitoring or control is performed by the reconfiguration module in the reconfiguration system.
- Step 203 The reconfiguration system delivers a resource reconfiguration command to perform resource reconfiguration.
- the reconfiguration system sends a resource reconfiguration command to perform resource reconfiguration, specifically: the reconfiguration system determines whether there is a resource that can be utilized, and if yes, and allows resource reconfiguration, the reconfiguration decision is passed through the resource.
- the allocation command is sent to the base station, so that the base station performs resource reconfiguration and notifies the subordinate terminal; if the new system is deployed, resource reconfiguration is required, the frequency band resource carried by the resource reconfiguration command may also be the new system Systematic resource replacement.
- the re-distribution of the resource allocation means that the resource reconfiguration is allowed when the current situation meets the resource reconfiguration policy of the reconfiguration system. If the current situation does not meet the resource reconfiguration policy, the resource reconfiguration is not performed.
- the resource reconfiguration involves system replacement, the reconfiguration strategy is generated by the policy control center, and the reconfiguration strategy of other resource reconfigurations is generated in the reconfiguration module.
- the method may further include: after receiving the resource reconfiguration command, the base station or the terminal performs measurement on the available resources indicated in the command, and corrects the resource according to the measurement result. Or re-match control.
- the measurement results include any combination of the following: an interference signal, a disturbed frequency band, and location area information.
- the reconfiguration control is specifically: re-requesting a new available resource to the reconfiguration system.
- the terminal measures the reconfigured resources to determine whether it is suitable for the configuration in the local area and feeds back to the base station and/or the reconfiguration system.
- the method may further include: Step 204, resources After the reconfiguration is successful, a confirmation message of the reconfiguration completion is returned.
- the acknowledgment message of the reconfiguration complete is returned, where: the base station determines that the reconfigured resource can be used, returns a confirmation message of the resource reconfiguration command to the reconfiguration system, and/or The core network returns notifications of reconfigured resources.
- the neighboring or other reconfiguration system having the connection is negotiated to request to borrow resources.
- the transmission message in the negotiation process is transparently transmitted through the core network.
- the re-allocation system of the borrowed resource when the borrowing resource expires; or when the resource re-allocation system itself is idle; or the other re-allocation system of the borrowed resource, due to the resource shortage of the subordinate base station or other needs, the re-allocation system of the borrowed resource is requested to be returned.
- the re-allocation system of the borrowed resources returns the borrowed resources.
- the borrowed resource generally refers to a radio resource, that is, a base station that is subordinate to another reconfiguration system is used to facilitate data transmission by a base station with tight resources.
- Step 201 corresponds to the reconfiguration preparation phase
- Step 202 corresponds to the reconfiguration initial phase
- Step 203 corresponds to the reconfiguration execution phase
- Step 204 corresponds to the reconfiguration phase
- the completion phase further includes: reconfiguration optimization phase; reconfiguration negotiation phase; reconfiguration recovery phase.
- the re-matching sub-phases may be merged or deleted as needed, for example, the functions of the re-provisioning initial stage and the re-preparation preparation stage are combined into a reconfiguration preparation stage; in addition, deletion may be performed, if not Reconfigure the optimization phase or negotiation phase.
- FIG. 3 is a schematic flowchart of a method for reconfiguring a radio resource according to an embodiment of the present invention. As shown in FIG. 3, the method specifically includes:
- Step 301 The reconfiguration module sends configuration information to the associated base station to perform sensing and measuring idle spectrum information, and reports the information to obtain available frequency resource information.
- Step 302 When the radio resource allocation of the base station is tight, request the available radio resources from the reconfiguration module.
- Step 303 The reconfiguration module allocates other available idle spectrum to the base station according to resource utilization of the base station and service information.
- Step 304 The base station sends the allocated new idle spectrum to the terminal, instructing the terminal to measure the allocated frequency, and if there is interference, feedback the interference information to the base station, and the base station operates the interference control according to the interference information if the interference control can be processed. The policy is then re-allocated to the terminal. Otherwise, the interference information is reported to the reconfiguration module to apply for new frequency resources.
- Step 305 After allocating a new frequency resource, the terminal switches to the new radio resource, and returns a reconfiguration complete confirmation message to the base station and the reconfiguration module.
- the terminal needs to switch to another resource.
- FIG. 4 is a schematic flowchart of Embodiment 1 of a reconfiguration of a cellular network resource in a cognitive radio according to the present invention. As shown in FIG. 4, the process includes: reconfiguration preparation, reconfiguration execution, and reconfiguration completion, including :
- Step 401 In the reconfiguration preparation phase, the reconfiguration module acquires the available spectrum resources. Specifically, the reconfiguration module sends the spectrum sensing configuration information to the base station, where the base station performs measurement sensing on the specified frequency band resource, and periodically or event triggers. The reporting of the perceived result, the event triggering, for example: when detecting the idle spectrum resource, or detecting a certain amount of spectrum resources, such as 50% of the available resources.
- Step 402 In the reconfiguration preparation phase, when the resources that the base station can allocate reach the lower limit, the base station sends a reconfiguration request message to trigger resource allocation.
- the base station allocates resources to a lower limit, for example, 5% allocateable resources, and the base station sends a reconfiguration request message to the reconfiguration module to trigger resource allocation.
- the reconfiguration request message includes resource utilization, for example: Remaining resources of the radio resource
- the source is 5%, and/or the remaining resources of the hardware resources are 10%.
- the wireless resource specifically refers to a frequency resource.
- Step 403 Perform reconfiguration phase, the reconfiguration module learns the base station side resource allocation request, runs the reconfiguration algorithm to obtain the reconfiguration decision, and delivers the reconfiguration command to the base station or coordinates the resources between the systems;
- the reconfiguration command is, for example: adding carrier information.
- the reconfiguration command may also include a reconfiguration type, specifically a radio resource reconfiguration, and/or a hardware resource reconfiguration.
- the base station performs resource reconfiguration according to the new frequency resource, and notifies the change of the terminal resource information by using a dedicated message or a public message.
- Step 404 After the reconfiguration completes the phase, after the terminal learns the new resource information, the terminal in the connected state performs measurement on the new spectrum resource, and if there is interference, the feedback is re-allocated, otherwise, the reconfiguration completes the confirmation.
- FIG. 5 is a schematic flowchart of Embodiment 2 of cellular network resource reconfiguration in the cognitive radio according to the present invention. As shown in FIG. 5, the process includes: a reconfiguration preparation phase, a reconfiguration initial phase, a reconfiguration execution phase, and a reconfiguration.
- the optimization phase, the reconfiguration completion phase specifically includes:
- Step 501 In the reconfiguration preparation phase, the reconfiguration module sends a measurement configuration message to the base station, and may also send measurement configuration information to the base station of the other system, and the base station reports the measurement result;
- the measurement configuration information includes the following information: a status indication of the base station resource utilization, a sensing frequency band, and the like.
- the periodic or event triggers the reporting of the resource status information of the base station itself or the other frequency band information that is perceived and is up.
- Step 502 In the initial stage of reconfiguration, when there are too many cell services and the resources are allocated by the base station, the available resources are reduced. For example, the resource utilization rate has reached 95%, and the base station is triggered to request the frequency resource from the reconfiguration module.
- the request message includes: a resource capacity of the base station itself, frequency utilization information of the base station, and the like.
- Step 503 Reconfigure the execution phase, and the reconfiguration module runs the re-allocation according to the request information of the base station.
- the method performs a reconfiguration decision, and if the reconfiguration module has an available idle resource, the resource reconfiguration command is sent to the base station;
- the reconfiguration command includes available frequency band resource information, such as frequency, bandwidth, and effective time.
- the base station After receiving the reconfiguration command, the base station performs resource reconfiguration, for example, adding a carrier resource, or allocating resources to each sector, and sending a message to notify the terminal resource change information in the cell.
- Step 504 The reconfiguration process is performed. After receiving the resource reconfiguration message, the terminal measures the specified new frequency band resource to determine whether it is interfered by the adjacent frequency band or the area. If the interference exists, the measurement report information is fed back to the base station. The base station performs interference control, re-allocating the interfered area, or reporting to the reconfiguration module to request reallocation of new resources, if there is no interference, step 505 is performed;
- the measurement report information includes: an interference signal, a disturbed frequency band, and location area information.
- Step 505 After the reconfiguration completes, the terminal receives the resource reconfiguration message of the base station, and measures the new frequency point. If there is no interference information, or the interference is small, for example, the signal interference ratio is less than a threshold, the sending is heavy. The completion message is sent to the base station to notify the completion of the reconfiguration.
- FIG. 6 is a schematic flowchart of Embodiment 3 of cellular network resource reconfiguration in the cognitive radio according to the present invention.
- the process includes: a reconfiguration preparation phase, a reconfiguration negotiation phase, a reconfiguration execution phase, and a reconfiguration.
- the reconfiguration module is located in a different network node, or in a single communication system, and the reconfiguration module is located on the access network side, for example: a base station, the reconfiguration process is as follows:
- Step 601 the reconfiguration preparation phase is the same as step 401 and step 402 in the first embodiment
- Step 602 the reconfiguration negotiation phase, the reconfiguration module 1 detects that the available resources of the base station are insufficient, for example, less than 5%, and the available resources are not sufficient, for example, less than 10%, sending a resource negotiation request message to the neighbor or
- the connected reconfiguration module 2 makes a negotiation request for available resources. If the reconfiguration module 2 has available frequency resources and/or subordinate base stations have sufficient available resources The source, for example, is greater than 50%, and the reconfiguration module 2 returns a negotiation response message to the reconfiguration module 1 after performing the reconfiguration decision;
- the response message includes: an effective time and available frequency information, such as: frequency, bandwidth.
- Step 603 the reconfiguration execution and completion phase, after the reconfiguration module 1 obtains the new available frequency resource information, the control base station performs new resource reconfiguration.
- the negotiation message can be transparently transmitted through the core network.
- FIG. 7 is a schematic flowchart of a reconfiguration recovery phase corresponding to the third embodiment of the present invention.
- the base station and the terminal finally complete the reconfiguration process, and obtain a new frequency resource, but if The resources acquired by the base station are applied from the outside or temporarily borrowed as described in the third embodiment.
- the spectrum returning and reconfiguration recovery phases are required.
- the process includes:
- Step 701 The base station 1 that borrows the resource acquires a new available frequency band through the reconfiguration process, and after the resource reconfiguration is used to allocate resources to the terminal, when the area service managed by the base station 1 decreases or the allocated resources increase, for example, does not include new The allocated resources, the available resources are greater than 30%, and the reconfiguration module 1 detects that the available resources of the base station 1 increase, the reconfiguration module 1 actively triggers the spectrum resource return indication message to the reconfiguration module 2 that lends the spectrum resources;
- the reconfiguration module 1 receives the resource return request message of the reconfiguration module 2 during the normal service.
- the reconfiguration module 1 re-provisions the resource and returns a resource return response to the reconfiguration module 2.
- Step 702 after the reconfiguration module 1 confirms the return of the resource of the reconfiguration module 2, performs resource reconfiguration on the base station 1, and switches the terminal working in the new frequency band to the spectrum resource managed by the base station 1, and notifies the reconfiguration module. 2 resource restitution is completed;
- Step 703 The reconfiguration module 2 receives the resource return indication of the reconfiguration module 1 or completes the reconfiguration reconfiguration.
- the reconfiguration module 2 replies to the reconfiguration module 1 with an acknowledgment message and performs resource reconfiguration on the base station 2.
- FIG. 8 is a schematic structural diagram of a system for reconfiguring a cellular network resource in a cognitive radio according to an embodiment of the present invention. As shown in FIG. 8, the system includes: a reconfiguration system 81 and a base station 82;
- the reconfiguration system 81 is configured to acquire resources that can be utilized, and when the trigger condition is met, trigger a resource reconfiguration process, and issue a resource reconfiguration command to perform resource reconfiguration;
- the reconfiguration system 81 is specifically configured to: a network node that performs resource reconfiguration, and includes: a reconfiguration module and a policy control center.
- the reconfiguration system 81 obtains the resources that can be utilized.
- the reconfiguration module in the reconfiguration system 81 sends measurement configuration information to the associated base station 82 according to the instruction of the policy control center, and performs perceptual measurement to obtain available resources.
- the reconfiguration module in the reconfiguration system 81 directly performs measurement configuration on the base station 82 to obtain idle resources.
- the resources include: hardware resources, and/or wireless resources.
- the radio resource includes one or more of the following information: idle spectrum information, resource utilization of the base station, supported protocol type, location information, and the like.
- the hardware resources refer to the use of hardware for communication processing, such as DSP and FPGA.
- the reconfiguration module is located at a different network node; or within a single communication system, the reconfiguration module is usually located on the access network side.
- the reconfiguration system 81 triggers the resource reconfiguration process when the triggering condition is met, specifically: the reconfiguration system 81 triggers the resource reconfiguration process when the resource of the base station 82 is monitored, or the new communication system needs to be deployed. When a band resource of a communication system is replaced, the resource reconfiguration process is triggered. Specifically, the reconfiguration module in the reconfiguration system 81 monitors the resource utilization of the base station 82, and triggers the resource reconfiguration process when the resource is known to be tight. When the resource of the base station 82 is idle, the policy control center of the reconfiguration system 81 and the reconfiguration module may be triggered to complete the resource reconfiguration process, which is specifically for the case where the new system replaces the resources of the existing system, which can make the replacement process simpler. , also reduces the probability of loss of business data during the replacement process. In addition to the replacement of existing system resources by the new system, monitoring or control is performed by the reconfiguration module in the reconfiguration system 81.
- the reconfiguration system 81 delivers a resource reconfiguration command to perform resource reconfiguration, specifically: a reconfiguration system 81. Determining whether there is a resource that can be utilized. If yes, and allowing resource reconfiguration, the reconfiguration decision is sent to the base station 82 through the resource reconfiguration command, so that the base station 82 performs resource reconfiguration and notifies the subordinate terminal; If a new system is deployed and resource reconfiguration is required, the frequency band resource carried by the resource reconfiguration command may also be a resource replacement of the existing system by the new system. The re-allocation of the resource is specifically performed. When the current situation meets the resource reconfiguration policy of the reconfiguration module, the resource reconfiguration is allowed. If the current situation does not meet the resource reconfiguration policy, the resource reconfiguration is not performed.
- the base station 82 is configured to trigger a resource reconfiguration process when the trigger condition is met.
- the base station 82 triggers the resource reconfiguration process when the trigger condition is met, specifically: when the base station resource allocation is tight, requesting the reconfiguration system to trigger the resource reconfiguration process.
- the base station 82 is further configured to: after receiving the resource reconfiguration command, perform measurement on the available resources indicated in the command or notify the terminal to perform measurement, and perform correction or reconfiguration on the resource according to the measurement result. After the control; and/or the resource reconfiguration succeeds, the confirmation message of the reconfiguration complete is returned.
- the reconfiguration control is specifically: re-requesting the new available resources to the reconfiguration system 81.
- the terminal measures the reconfigured resources, determines whether it is suitable for the configuration of the local area, and feeds back to the base station 82 and/or the reconfiguration system 81.
- the base station 82 After the base station 82 determines that the reconfigured resource can be utilized, the base station 82 returns a confirmation message of the resource reconfiguration command to the reconfiguration system 81, and/or after the resource reconfiguration succeeds. Or return a notification of the reconfigured resource to the core network.
- the reconfiguration system 81 if the reconfiguration system 81 does not have available resources, negotiates with another reconfiguration system 81 that is adjacent or has a connection. Request to borrow resources.
- the transmission message in the negotiation process is transparently transmitted through the core network.
- the resource re-allocation system 81 when the borrowed resource expires; or borrowing the resource's reconfiguration system 81, its own resource is empty. In the idle time; or other re-allocation system that lends resources, the resource re-allocation system 81 returns the borrowed resources when requesting the re-allocation of the resources to the borrowing resource re-allocation system 81 due to resource constraints or other needs of the subordinate base stations.
- the borrowed resource generally refers to a wireless resource, that is, a base station affiliated with another reconfiguration system is used to assist a resource-constrained base station to perform data transmission.
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Abstract
本发明实施例公开了一种认知无线电中蜂窝网资源重配的方法和系统,其中方法包括:重配系统发送配置信息给基站,以获取可利用的资源;当满足触发条件时,重配系统触发资源重配过程;重配系统下发资源重配命令进行资源重配。根据本发明实施例提供的技术方案,使得认知系统资源的重配过程更加清晰结构化,有利于重配过程的整体性能优化和提高基站的资源的重配效率。
Description
一种认知无线电中蜂窝网资源重配的方法和系统 技术领域
本发明涉及蜂窝网络下资源重配技术, 特别是指一种认知无线电中蜂 窝网资源重配的方法和系统。 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; 另一方面在传统的固定频谱分配模式下, 频谱资源的利用率并不高。 并且随着系统需求的多样化, 多种无线接入技 术( Radio Access Technology, RAT ) 的并存出现已经是现状, 进一步的对 于不同运营商在不同地理区域范围内, 不同 RAT间的业务分布是不同的。 从目前网络运营的现状和发展趋势上来看, 运营商希望能够统一管理短期 内在同一地理位置上共存的不同系统, 使得频谱的分配更加符合网络流量 特征并且实现网络资源利用的优化。 典型的, 例如在已经安装了一个网络 的范围内, 运营商想增加一个新一代的网络, 例如在已经部署的第二代 /第 三代( Second/Third Generation, 2G/3G ) 网络上添加长期演进 ( Long Term Evolution, LTE )网络, 并且运营商希望能够根据驻留在特定区域内小区业 务量的变化, 动态地管理现存系统和下一代系统的硬件资源和无线资源, 在这种情况下所利用的技术为认知无线电 (Cognitive Radio, CR )技术, 应用 CR技术的系统为认知系统。
在认知系统中, 对网络资源进行控制重配的实体是重配模块 ( Reconfiguration Entity ),主要用于监测基站的资源利用状况并对网络资源 进行重新分配。 在涉及到网络系统改变或者新的网络系统布局时, 重配模
块需要根据策略控制中心的控制指示进行操作。 图 1 为蜂窝网络中认知系 统的逻辑架构示意图, 如图 1所示, 在认知系统的 IMT-Band ( International Mobile Telecommunication Band )频带的研究中存在了若干应用场景, 如: 对于现有系统的升级; 在现有频段上布局新的系统; 在系统内对资源利用 的重新规划, 不同系统间的资源调整和利用等。 现有研究中, 对于不同的 研究场景釆用了不同的重配过程, 如对于无线频谱资源或硬件资源进行重 新配置, 无线资源管理器( Radio Resource Manager, RRM )监测资源分配 信息并告知重配模块, 重配模块对一段时间内的资源分配结果运行重配算 法, 并最终做出重配决策增加或减少载波指示, 通知基站进行资源重配, 基站在资源重配后通知终端资源发生改变。
现有的技术报告中各个场景的资源重配过程, 都是类似于上述重配过 程但根据场景的不同都存在一些区别, 并没有一个规范的重配流程, 这样 对于重配过程中存在的问题不能很好的解决, 对于重配过程后续的优化也 并不完善, 严重影响基站的资源重配效率。 发明内容
有鉴于此, 本发明实施例的主要目的在于提供一种认知无线电中蜂窝 网资源重配的方法和系统, 提出了一个总体的重配流程, 能够更好的解决 重配过程中存在的问题, 有利于对重配过程进行优化。
为解决上述技术问题, 本发明实施例的技术方案是这样实现的: 本发明实施例提供了一种认知无线电中蜂窝网资源重配的方法, 所述 方法包括: 重配系统发送配置信息给基站, 以获取可利用的资源; 当满足 触发条件时, 重配系统触发资源重配过程; 重配系统下发资源重配命令进 行资源重配。
上述方案中, 所述可利用的资源包括以下任意的组合: 空闲的频谱信 息、 基站的资源利用率、 支持的协议类型、 位置信息、 通信处理的硬件资
上述方案中, 所述重配系统下发资源重配命令进行资源重配后, 所述 方法还包括: 基站或终端接收到资源重配命令后, 对命令中指示的能够利 用的资源进行测量, 并根据测量结果对所述资源进行修正或重配控制; 和 / 或, 资源重配成功后, 返回重配完成的确认消息。
上述方案中, 所述测量结果包括以下任意的组合: 干扰信号、 受干扰 的频段、 位置区域信息。
上述方案中, 所述重配系统下发资源重配命令进行资源重配, 具体为: 重配系统判断是否拥有能够利用的资源, 如果是, 并且允许资源重配时, 则将重配决策通过资源重配命令下发给基站, 使基站进行资源重配, 并通 知下属的终端。
上述方案中, 所述判断重配系统是否拥有能够利用的资源的过程中, 如果重配系统没有能够利用的资源, 所述方法还包括:
重配系统与相邻或具备连接的其他重配系统进行协商, 请求借用资源; 当借用资源到期后; 或者借用资源的重配系统自身资源空闲时; 或者 借出资源的其他重配系统, 向借用资源的重配系统请求归还资源时, 借用 资源的重配系统归还借用的资源。
上述方案中, 所述重配系统具体为: 进行资源重配的网络节点组成的 系统, 包括: 重配模块和策略控制中心。
上述方案中, 所述当满足触发条件时, 重配系统触发资源重配过程, 包括:
重配系统监测到基站的无线资源、 和 /或硬件资源空闲或利用率高于第 一阔值时, 触发资源重配过程; 或者需要布局新的无线通信系统触发资源 重配过程; 或者,
基站的无线资源、 和 /或硬件资源低于第二阔值时, 向重配系统请求触
发资源重配过程。
本发明实施例提供了一种认知无线电中蜂窝网资源重配的系统, 所述 资源重配的系统包括: 重配系统; 其中,
所述重配系统, 用于获取能够利用的资源, 当满足触发条件时, 触发 资源重配过程, 下发资源重配命令进行资源重配。
上述方案中, 所述资源重配的系统还包括:
基站, 用于满足触发条件时, 触发资源重配过程。
上述方案中, 所述基站, 还用于:
接收到资源重配命令后, 对命令中指示的能够利用的资源进行测量或 通知终端进行测量, 并根据测量结果对所述资源进行修正或重配控制; 和 / 或,
资源重配成功后, 返回重配完成的确认消息。
上述方案中, 所述重配系统下发资源重配命令进行资源重配, 具体为: 重配系统判断是否拥有能够利用的资源, 如果是, 并且允许资源重配时, 将重配决策通过资源重配命令下发给基站, 使基站进行资源重配, 并通知 下属的终端。
上述方案中, 所述重配系统, 判断是否拥有能够利用的资源的过程中, 如果重配系统没有能够利用的资源时, 则与相邻或具备连接的其他重配系 统进行协商, 请求借用资源;
当借用资源到期后; 或者借用资源的重配系统自身资源空闲时; 或者 借出资源的其他重配系统, 向借用资源的重配系统请求归还资源时, 借用 资源的重配系统归还借用的资源。
上述方案中, 所述重配系统在满足触发条件时, 触发资源重配过程, 具体为:
重配系统监测到基站的资源高于第一阔值或低于第二阔值时, 触发资
源重配过程; 或者,
需要布局新的通信系统, 对现有通信系统的频带资源进行替换时, 触 发资源重配过程。
本发明实施例所提供的认知无线电中蜂窝网资源重配的方法和系统, 通过重配系统获取能够利用的资源; 当满足触发条件时, 基站或重配系统 触发资源重配过程; 重配系统下发资源重配命令进行资源重配。 实现了对 重配过程中重配子阶段进行划分: 重配准备阶段、 重配初始阶段、 重配执 行阶段、 重配完成阶段; 进一步还可以包括: 重配优化阶段; 重配协商阶 段; 重配恢复阶段。 这样使得认知系统资源的重配过程更加清晰结构化, 有利于重配过程的整体性能优化和提高基站的资源的重配效率。 附图说明
图 1为蜂窝网络中认知系统的逻辑架构示意图;
图 2为本发明实施例一种认知无线电中蜂窝网资源重配的方法流程示 意图;
图 3为本发明实施例无线资源进行重配的方法流程示意图;
图 4为本发明认知无线电中蜂窝网资源重配的实施例一的流程示意图; 图 5为本发明认知无线电中蜂窝网资源重配的实施例二的流程示意图; 图 6为本发明认知无线电中蜂窝网资源重配的实施例三的流程示意图; 图 7为对应本发明实施例三的重配恢复阶段的流程示意图;
图 8为本发明实施例一种认知无线电中蜂窝网资源重配的系统结构示 意图。 具体实施方式
本发明实施例的基本思想是: 重配系统获取能够利用的资源; 当满足 触发条件时, 基站或重配系统触发资源重配过程; 重配系统下发资源重配
命令进行资源重配。
下面结合附图和具体实施例对本发明的技术方案进一步详细阐述。 图 2为本发明实施例一种认知无线电中蜂窝网资源重配的方法流程示 意图, 如图 2所示, 所述方法具体包括以下步骤:
步骤 201 , 重配系统获取能够利用的资源、 即可利用的资源;
具体的, 所述重配系统具体为: 进行资源重配的网络节点组成的系统, 包括: 重配模块和策略控制中心。 所述获取能够利用的资源, 具体为: 重 配系统中的重配模块根据策略控制中心的指示, 向所属的基站下发测量配 置信息, 进行感知测量获取能够利用的资源, 或者重配系统中的重配模块 直接对基站进行测量配置, 获取空闲的资源。 所述资源包括: 硬件资源, 和 /或无线资源。 具体的所述资源包括以下信息中一个或多个: 空闲的频谱 信息、 基站的资源利用率、 支持的协议类型、 位置信息等。 所述的硬件资 源是指进行通信处理的硬件资源, 例如数字信号处理器 (Digital Signal Processor, DSP ), 可编程门阵列( Field - Programmable Gate Array, FPGA ) 的使用情况。 对于不同的无线系统技术, 重配模块位于不同的网络节点, 或者单一通信系统内; 重配模块通常位于接入网侧。
步骤 202, 当满足触发条件时, 基站或重配系统触发资源重配过程; 具体的, 所述当满足触发条件时, 基站或重配系统触发资源重配过程, 包括: 重配系统监测到基站的无线资源、 和 /或硬件资源空闲或利用率高于 第一阔值时, 触发资源重配过程; 或者需要布局新的无线通信系统触发资 源重配过程; 或者, 基站的无线资源、 和 /或硬件资源低于第二阔值时, 向 重配系统请求触发资源重配过程。
具体地, 基站资源分配紧张时, 向重配系统请求触发资源重配过程; 或者重配系统监测到基站的资源紧张时, 触发资源重配过程; 或者需要布 局新的通信系统, 对现有通信系统的频带资源进行替换时, 触发资源重配
过程。 具体的, 基站本身资源分配紧张, 可以向重配系统中的重配模块请 求触发资源重配过程; 也可以是重配系统中的重配模块监测基站的资源利 用情况, 当获知资源紧张时, 触发资源重配过程。 当基站资源空闲时也可 以触发重配系统的策略控制中心和重配模块配合完成资源重配过程, 其具 体针对新系统对现有系统的资源替换的情况, 这样能够使得替换过程更加 简单, 也降低了替换过程中业务数据丟失的概率。 除了新系统对现有系统 的资源进行替换以外, 都是由重配系统中的重配模块完成监测或控制。
步骤 203 , 重配系统下发资源重配命令进行资源重配。
具体的, 所述重配系统下发资源重配命令进行资源重配, 具体为: 重 配系统判断是否拥有能够利用的资源, 如果是, 并且允许资源重配时, 将 重配决策通过资源重配命令下发给基站, 使基站进行资源重配, 并通知下 属的终端; 如果是布局新的系统, 需要资源重配, 则所述资源重配命令携 带的频带资源也可以是新系统对现有系统的资源替换。 其中, 所述允许资 源重配具体是指, 当前的情况符合重配系统的资源重配策略时, 允许资源 重配, 如果当前情况不符合资源重配策略, 则不进行资源重配。 其中, 涉 及到系统替换的资源重配, 重配策略由策略控制中心产生, 其它的资源重 配的重配策略在重配模块中产生。
进一步的, 在步骤 203之后, 所述方法还可选的包括: 基站或终端接 收到资源重配命令后, 对命令中指示的能够利用的资源进行测量, 并根据 测量结果对所述资源进行修正或重配控制。 所述测量结果包括以下任意的 组合: 干扰信号、 受干扰的频段、 位置区域信息。
具体的, 所述重配控制具体为: 向重配系统重新请求新的能够利用的 资源。 例如: 在重配系统下发了重配的资源后, 终端对重配的资源进行测 量, 判断是否适合本区域的配置, 并反馈给基站和 /或重配系统。
进一步的, 在步骤 203之后, 所述方法还可选的包括: 步骤 204, 资源
重配成功后, 返回重配完成的确认消息。
具体的, 所述资源重配成功后, 返回重配完成的确认消息, 具体为: 基站确定重配的资源能够被利用后, 向重配系统返回资源重配命令的确认 消息, 和 /或向核心网返回重新配置的资源的通知。
进一步的, 所述步骤 203 中, 如果重配系统没有能够利用的资源时, 与相邻或具备连接的其他重配系统进行协商, 请求借用资源。
具体的, 对于不同无线系统技术, 所述协商过程中的传输消息通过核 心网透传。
相应的, 当借用资源到期后; 或者借用资源的重配系统自身资源空闲 时; 或者借出资源的其他重配系统, 由于下属基站资源紧张或其他需要, 向借用资源的重配系统请求归还资源时, 借用资源的重配系统归还借用的 资源。 其中, 所述借用的资源通常是指无线资源, 即利用其他重配系统下 属的基站帮助资源紧张的基站进行数据传输。
在上述方法中, 对重配过程中重配子阶段进行了划分: 步骤 201 相当 于重配准备阶段; 步骤 202相当于重配初始阶段; 步骤 203相当于重配执 行阶段; 步骤 204相当于重配完成阶段; 进一步还包括: 重配优化阶段; 重配协商阶段; 重配恢复阶段。 这样使得认知系统资源的重配过程更加清 晰结构化, 有利于重配过程的整体性能优化和提高基站的资源的重配效率。 在实际应用中, 可以根据需要对重配子阶段进行合并或删除, 例如重配初 始阶段的功能和重配准备阶段的功能合并成重配准备阶段来实现; 此外也 可以进行删减, 如可以没有重配优化阶段或协商阶段。
图 3为本发明实施例无线资源进行重配的方法流程示意图, 如图 3所 示, 所述方法具体包括:
步骤 301 ,重配模块给所属的基站下发配置信息进行感知测量空闲频谱 信息并上报, 来搜集获取可利用的频率资源信息;
步骤 302,基站的无线资源分配紧张时, 向重配模块请求可利用的无线 资源;
步骤 303 , 重配模块根据基站的资源利用率、 以及业务信息等, 分配合 适的其他空闲频谱给基站;
步骤 304,基站把分配的新的空闲频谱下发给终端, 指示终端对分配的 频率的测量, 如果存在干扰则反馈干扰信息给基站, 基站根据干扰信息, 如果干扰控制可以处理, 就运行干扰控制策略, 然后再重配下发给终端, 否则, 把干扰信息上报给重配模块, 申请新的其它频率资源;
步骤 305 , 分配了新的频率资源后, 终端切换到新的无线资源上, 并给 基站和重配模块回复重配完成确认消息。
进一步的, 终端在使用新的频率资源过程中, 如果借用频率资源的其 它重配模块触发了资源归还请求, 则终端需要切换到其他的资源上。
图 4为本发明认知无线电中蜂窝网资源重配的实施例一的流程示意图, 如图 4所示, 所述流程包括: 重配准备、 重配执行、 重配完成三个阶段, 具体包括:
步骤 401 , 在重配准备阶段, 重配模块获取可利用的频谱资源; 具体的, 重配模块下发频谱感知配置信息给基站, 基站对指定的频带 资源进行测量感知, 并周期性或者事件触发的上报感知结果, 所述事件触 发例如: 当检测到空闲频谱资源时,或者检测到一定量的频谱资源,如 50% 的可利用资源。
步骤 402, 在重配准备阶段, 当基站可分配的资源达到下限时, 基站发 送重配请求消息触发资源分配;
具体的, 当基站下属终端业务请求过多, 基站可分配的资源达到下限, 例如 5%可分配的资源, 基站就发送重配请求消息给重配模块触发资源分 配。 所述的重配请求消息中包括了资源利用率, 例如: 无线资源的剩余资
源为 5%, 和 /或硬件资源的剩余资源为 10%。 所述的无线资源具体是指频 率资源。
步骤 403 , 重配执行阶段, 重配模块获知基站侧资源分配请求, 运行重 配算法获得重配决策, 下发重配命令给基站或协调系统间的资源;
具体的, 所述重配命令例如: 增加载波信息。 所述的重配命令中还可 以包括重配类型, 具体为无线资源重配, 和 /或硬件资源重配。 基站根据新 的频率资源进行资源重配, 并通过专用消息或公共消息通知终端资源信息 的改变。
步骤 404, 重配完成阶段, 终端获知了新的资源信息后, 处于连接态的 终端就新的频谱资源进行测量, 若存在干扰就重配反馈, 否则, 回复重配 完成确认。
图 5为本发明认知无线电中蜂窝网资源重配的实施例二的流程示意图, 如图 5 所示, 所述流程包括: 重配准备阶段, 重配初始阶段, 重配执行阶 段, 重配优化阶段, 重配完成阶段, 具体包括:
步骤 501 , 重配准备阶段, 重配模块下发测量配置消息给基站, 也可以 给其它系统的基站下发测量配置信息, 基站上报测量结果;
具体的, 所述测量配置信息包括了如下信息: 基站资源利用的状态指 示、 感知频段等。 基站收到配置信息后, 周期性或事件触发上报基站本身 的资源状态信息或感知的其他频段信息并上 ·¾。
步骤 502 , 重配初始阶段, 当小区业务过多, 基站分配资源后, 可利用 的资源降低, 例如: 资源利用率已经达到 95%, 触发基站向重配模块请求 频率资源;
具体的, 所述请求消息中包括: 基站自身资源容量, 基站的频率利用 信息等。
步骤 503 , 重配执行阶段, 重配模块根据基站的请求信息, 运行重配算
法, 进行重配决策, 若重配模块有可利用的空闲资源, 就下发资源重配命 令给基站;
具体的, 重配命令中包括了可利用的频带资源信息, 如频点、 带宽、 有效时间。 基站收到重配命令后, 进行资源重配, 例如添加载波资源, 或 者给各个扇区分配资源, 并下发消息通知小区内的终端资源改变信息。
步骤 504, 重配优化过程, 终端收到资源重配消息后, 对指定的新的频 带资源进行测量, 判断是否受到邻近频带或者区域内的干扰, 若有干扰存 在, 则反馈测量报告信息给基站, 基站进行干扰控制, 对受干扰的区域进 行重配, 或者上报给重配模块请求重新分配新的资源, 若不存在干扰, 则 执行步骤 505;
具体的, 所述测量报告信息中包括: 干扰信号、 受干扰的频段、 位置 区域信息等。
步骤 505 , 重配完成阶段, 终端收到基站的资源重配消息后, 对新的频 点进行测量, 若不存在干扰信息, 或者干扰小, 例如信号干扰比小于一门 限值, 则发送重配完成消息给基站通知重配完成。
图 6为本发明认知无线电中蜂窝网资源重配的实施例三的流程示意图, 如图 6所示, 所述流程包括: 重配准备阶段、 重配协商阶段、 重配执行阶 段和重配完成阶段, 进一步的, 对于不同的无线系统技术, 重配模块位于 不同的网络节点, 或者单一通信系统内, 重配模块位于接入网侧, 例如: 基站, 则重配过程如下:
步骤 601 , 重配准备阶段如同实施例一中步骤 401和步骤 402;
步骤 602, 重配协商阶段, 重配模块 1监测到基站的可利用资源不足, 例如小于 5%, 而本身的可利用资源也不充足, 例如小于 10%, 则发送资源 协商请求消息给邻近或有连接的重配模块 2进行可利用资源的协商请求。 如果重配模块 2 有可利用的频率资源和 /或下属的基站有充裕的可利用资
源, 例如大于 50%,重配模块 2进行重配决策后给重配模块 1回复协商响应 消息;
具体的, 响应消息中包括: 有效时间和可利用的频率信息, 例如: 频 点、 带宽。
步骤 603 , 重配执行和完成阶段, 重配模块 1获得新的可利用频率资源 信息后, 控制基站进行新的资源重配。
进一步地, 对于不同无线系统技术的重配模块的协商过程, 协商消息 可以通过核心网透传。
图 7为对应本发明实施例三的重配恢复阶段的流程示意图, 如图 7所 示, 在上述三个实施例中, 基站和终端最终完成重配过程, 获得了新的频 率资源, 但如果基站获取的资源如实施例三所述是从外部申请或临时借用 的, 在重配完成并使用新频段了一段时间后, 需要进行频谱归还、 及重配 恢复阶段, 所述流程包括:
步骤 701 , 借用资源的基站 1通过重配过程获取了新的可利用的频段, 进行资源重配为终端分配资源后, 当基站 1 管理的区域业务减少或者可分 配的资源增多, 例如不包括新分配的资源, 可利用的资源大于 30%, 重配 模块 1监测到基站 1可利用资源增多时, 重配模块 1主动触发频谱资源归 还指示消息给借出频谱资源的重配模块 2;
可选地, 基站 1在重配完成后, 在正常的业务进行过程中, 重配模块 1 收到了重配模块 2的资源归还请求消息。 重配模块 1重新进行资源重配, 并回复资源归还响应给重配模块 2。
步骤 702, 重配模块 1确认归还重配模块 2的资源后,对基站 1进行资 源重配, 并把在新频段上工作的终端切换到基站 1 所管理的频谱资源上, 并通知重配模块 2资源归还重配完成;
步骤 703 ,重配模块 2收到重配模块 1的资源归还指示或归还重配完成,
重配模块 2给重配模块 1回复确认消息 , 并对基站 2进行资源重配。
图 8为本发明实施例一种认知无线电中蜂窝网资源重配的系统结构示 意图, 如图 8所示, 所述系统包括: 重配系统 81和基站 82; 其中,
所述重配系统 81 , 用于获取能够利用的资源, 当满足触发条件时, 触 发资源重配过程, 下发资源重配命令进行资源重配;
具体的, 所述重配系统 81具体为: 进行资源重配的网络节点组成的系 统, 包括: 重配模块和策略控制中心。 所述重配系统 81获取能够利用的资 源, 具体为: 重配系统 81中的重配模块根据策略控制中心的指示, 向所属 的基站 82下发测量配置信息, 进行感知测量获取能够利用的资源, 或者重 配系统 81 中的重配模块直接对基站 82进行测量配置, 获取空闲的资源。 所述资源包括: 硬件资源, 和 /或无线资源。 具体的所述无线资源包括以下 信息中一个或多个: 空闲的频谱信息、 基站的资源利用率、 支持的协议类 型、位置信息等。所述的硬件资源是指进行通信处理的硬件,如 DSP、 FPGA, 的使用情况。 对于不同的无线系统技术, 重配模块位于不同的网络节点; 或者单一通信系统内, 重配模块通常位于接入网侧。
所述重配系统 81当满足触发条件时, 触发资源重配过程, 具体为: 重 配系统 81监测到基站 82的资源紧张时, 触发资源重配过程; 或者需要布 局新的通信系统, 对现有通信系统的频带资源进行替换时, 触发资源重配 过程。 具体的, 重配系统 81 中的重配模块监测基站 82的资源利用情况, 当获知资源紧张时, 触发资源重配过程。 当基站 82资源空闲时也可以触发 重配系统 81的策略控制中心和重配模块配合完成资源重配过程, 其具体针 对新系统对现有系统的资源替换的情况, 这样能够使得替换过程更加简单 , 也降低了替换过程中业务数据丟失的概率。 除了新系统对现有系统的资源 进行替换以外, 都是由重配系统 81中的重配模块完成监测或控制。
所述重配系统 81下发资源重配命令进行资源重配, 具体为: 重配系统
81判断是否拥有能够利用的资源, 如果是, 并且允许资源重配时, 将重配 决策通过资源重配命令下发给基站 82 , 使基站 82进行资源重配, 并通知下 属的终端; 如果是布局新的系统, 需要资源重配, 则所述资源重配命令携 带的频带资源也可以是新系统对现有系统的资源替换。 其中, 所述允许资 源重配具体是指, 当前的情况符合重配模块的资源重配策略时, 允许资源 重配, 如果当前情况不符合资源重配策略, 则不进行资源重配。
所述基站 82 , 用于满足触发条件时, 触发资源重配过程。
具体的, 所述基站 82在满足触发条件时,触发资源重配过程,具体为: 基站资源分配紧张时, 向重配系统请求触发资源重配过程。
进一步的, 所述基站 82 , 还用于接收到资源重配命令后, 对命令中指 示的能够利用的资源进行测量或通知终端进行测量, 并根据测量结果对所 述资源进行爹正或重配控制; 和 /或资源重配成功后, 返回重配完成的确认 消息。
具体的, 所述重配控制具体为: 向重配系统 81重新请求新的能够利用 的资源。 例如: 在重配系统 81下发了重配的资源后, 终端对重配的资源进 行测量, 判断是否适合本区域的配置, 并反馈给基站 82和 /或重配系统 81。
所述基站 82在资源重配成功后, 返回重配完成的确认消息, 具体为: 基站 82确定重配的资源能够被利用后, 向重配系统 81返回资源重配命令 的确认消息, 和 /或向核心网返回重新配置的资源的通知。
进一步的, 所述重配系统 81 , 判断是否拥有能够利用的资源的过程中, 如果重配系统 81没有能够利用的资源时, 则与相邻或具备连接的其他重配 系统 81, 进行协商, 请求借用资源。
具体的, 对于不同无线系统技术, 所述协商过程中的传输消息通过核 心网透传。
相应的, 当借用资源到期后; 或者借用资源的重配系统 81 自身资源空
闲时; 或者借出资源的其他重配系统 8Γ , 由于下属基站资源紧张或其他需 要, 向借用资源的重配系统 81 请求归还资源时, 借用资源的重配系统 81 归还借用的资源。 其中, 所述借用的资源通常是指无线资源, 即利用其他 重配系统下属的基站帮助资源紧张的基站进行数据传输。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。
Claims
1、 一种认知无线电中蜂窝网资源重配的方法, 其特征在于, 所述方法 包括:
重配系统发送配置信息给基站, 以获取可利用的资源;
当满足触发条件时, 重配系统触发资源重配过程;
重配系统下发资源重配命令进行资源重配。
2、 根据权利要求 1所述的方法, 其特征在于, 所述可利用的资源包括 以下任意的组合:
空闲的频谱信息、 基站的资源利用率、 支持的协议类型、 位置信息、 通信处理的硬件资源。
3、 根据权利要求 1所述的方法, 其特征在于, 所述重配系统下发资源 重配命令进行资源重配后, 所述方法还包括:
基站或终端接收到资源重配命令后, 对命令中指示的能够利用的资源 进行测量, 并根据测量结果对所述资源进行修正或重配控制; 和 /或,
资源重配成功后, 返回重配完成的确认消息。
4、 根据权利要求 3所述的方法, 其特征在于, 所述测量结果包括以下 任意的组合:
干扰信号、 受干扰的频段、 位置区域信息。
5、 根据权利要求 1至 4任一所述的方法, 其特征在于, 所述重配系统 下发资源重配命令进行资源重配, 具体为:
重配系统判断是否拥有能够利用的资源, 如果是, 并且允许资源重配 时, 则将重配决策通过资源重配命令下发给基站, 使基站进行资源重配, 并通知下属的终端。
6、 根据权利要求 3所述的方法, 其特征在于, 所述判断重配系统是否 拥有能够利用的资源的过程中, 如果重配系统没有能够利用的资源, 所述 方法还包括:
重配系统与相邻或具备连接的其他重配系统进行协商, 请求借用资源; 当借用资源到期后; 或者借用资源的重配系统自身资源空闲时; 或者 借出资源的其他重配系统, 向借用资源的重配系统请求归还资源时, 借用 资源的重配系统归还借用的资源。
7、 根据权利要求 1至 4任一所述的方法, 其特征在于, 所述重配系统 具体为: 进行资源重配的网络节点组成的系统, 包括: 重配模块和策略控 制中心。
8、 根据权利要求 1至 4任一所述的方法, 其特征在于, 所述当满足触 发条件时, 重配系统触发资源重配过程, 包括:
重配系统监测到基站的无线资源、 和 /或硬件资源空闲或利用率高于第 一阔值时, 触发资源重配过程; 或者需要布局新的无线通信系统触发资源 重配过程; 或者,
基站的无线资源、 和 /或硬件资源低于第二阔值时, 向重配系统请求触 发资源重配过程。
9、 一种认知无线电中蜂窝网资源重配的系统, 其特征在于, 所述资源 重配的系统包括: 重配系统; 其中,
所述重配系统, 用于获取能够利用的资源, 当满足触发条件时, 触发 资源重配过程, 下发资源重配命令进行资源重配。
10、 根据权利要求 9所述资源重配的系统, 其特征在于, 所述资源重 配的系统还包括:
基站, 用于满足触发条件时, 触发资源重配过程。
11、 根据权利要求 10所述资源重配的系统, 其特征在于, 所述基站, 还用于:
接收到资源重配命令后, 对命令中指示的能够利用的资源进行测量或 通知终端进行测量, 并根据测量结果对所述资源进行修正或重配控制; 和 / 或,
资源重配成功后, 返回重配完成的确认消息。
12、 根据权利要求 9、 10或 11所述资源重配的系统, 其特征在于, 所 述重配系统下发资源重配命令进行资源重配, 具体为:
重配系统判断是否拥有能够利用的资源, 如果是, 并且允许资源重配 时, 将重配决策通过资源重配命令下发给基站, 使基站进行资源重配, 并 通知下属的终端。
13、 根据权利要求 12所述资源重配的系统, 其特征在于, 所述重配系 统, 判断是否拥有能够利用的资源的过程中, 如果重配系统没有能够利用 的资源时, 则与相邻或具备连接的其他重配系统进行协商, 请求借用资源; 当借用资源到期后; 或者借用资源的重配系统自身资源空闲时; 或者 借出资源的其他重配系统, 向借用资源的重配系统请求归还资源时, 借用 资源的重配系统归还借用的资源。
14、 根据权利要求 9、 10或 11所述资源重配的系统, 其特征在于, 所 述重配系统在满足触发条件时, 触发资源重配过程, 具体为:
重配系统监测到基站的资源高于第一阔值或低于第二阔值时, 触发资 源重配过程; 或者,
需要布局新的通信系统, 对现有通信系统的频带资源进行替换时, 触 发资源重配过程。
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