CN103002499A - Wireless resource allocation and optimization method and wireless communication system - Google Patents
Wireless resource allocation and optimization method and wireless communication system Download PDFInfo
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- CN103002499A CN103002499A CN2011102712736A CN201110271273A CN103002499A CN 103002499 A CN103002499 A CN 103002499A CN 2011102712736 A CN2011102712736 A CN 2011102712736A CN 201110271273 A CN201110271273 A CN 201110271273A CN 103002499 A CN103002499 A CN 103002499A
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Abstract
The invention provides a wireless resource allocation and optimization method and a wireless communication system. The method includes that UE (user equipment) after being accessed to a network performs wireless network environment evaluation and reports evaluation results to a network side, and the network side adjusts wireless resource amount allocated to the UE according to the evaluation results reported by the UE. The wireless resource amount to be allocated to the UE is self-adaptively adjusted on the basis of evaluation on wireless network environment, so that wireless network resources can be more effectively allocated in proper scenes.
Description
Technical field
The present invention relates to a kind of allocation of radio resources optimization method and wireless communication system, belong to wireless communication technology field.
Background technology
In the present wireless network, various wireless resource management algorithms only obtain the required judgement foundation of certain algorithm according to the measurement result to resource utilization, and then determine the radio resource allocation strategy adopt, whether and applicable in specific wireless network environment for this strategy, whether behavior outcome meets expection is not considered.
Especially for the wireless resource utility efficiency of network, can only rely at present the optimization of manually carrying out Access Algorithm and dynamic channel adjustment algorithm.The maximum drawback of this prioritization scheme is inefficiency, the consumption human cost is high, wireless network environment, the traffic carrying capacity of different office points, each city are all different, because professional use crowd has different behavior performances in different time sections, therefore only rely on the artificial optimization, be difficult to reach in real time the effect of optimization of expection; And, for wireless network, the maintenance optimization of each region can't sharing application in other similar scenes, thereby be difficult to realize the optimization of the whole network wireless resource utility efficiency.
Summary of the invention
The invention provides a kind of allocation of radio resources optimization method and wireless communication system, in order to realize efficiently the optimization of the whole network allocation of radio resources.
One aspect of the present invention provides a kind of allocation of radio resources optimization method, comprising:
Carry out the wireless network environment assessment behind the UE access network, and assessment result is reported network side;
Described network side is adjusted the amount of radio resources of distributing to described UE according to the described assessment result that described UE reports.
The present invention provides a kind of wireless communication system on the other hand, comprising UE and network equipment, wherein:
Described UE comprises: evaluation module is used for carrying out the wireless network environment assessment behind described UE access network; And reporting module, the assessment result that is used for evaluation module is obtained reports described network equipment;
Described network equipment is used for according to the described assessment result that described UE reports the amount of radio resources of distributing to described UE being adjusted.
The present invention's amount of radio resources that the self adaptation adjustment distributes UE on the basis that wireless network environment is assessed, thus can under appropriate scene, more effectively distribute wireless network resource.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of allocation of radio resources optimization method embodiment of the present invention;
Fig. 2 A～Fig. 2 E is the optional flow chart of step 200 shown in Figure 1;
Fig. 3 is the optional flow chart of step 300 shown in Figure 1;
Fig. 4 is the structural representation of wireless communication system embodiment of the present invention;
Fig. 5 is the optional structural representation of evaluation module 21 shown in Figure 4.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Main design of the present invention is to carry out the wireless network environment assessment behind the UE access network, and assessment result is reported network side; Then the amount of radio resources of distributing to described UE is adjusted according to the described assessment result that described UE reports by described network side.Wherein, described wireless network environment assessment can comprise carries out power measurement and interferometry, specifically can be referring to following execution mode.
Fig. 1 is the flow chart of allocation of radio resources optimization method embodiment of the present invention, as shown in the figure, comprises the steps:
Particularly, can pass through for example transmitter code power (Transmit Code Power, be called for short: TXCP), Interference Signal Code Power (Interference Signal Code Power, be called for short: ISCP), (Received Signal Code Power, be called for short: RSCP) etc. parameter measures to obtain above-mentioned measurement result to received signal code power.
Wherein, described covering signal strength signal intensity refers to the coverage strength of wireless signal in the residing wireless network environment of described UE, such as comprising: weak covering, strong covering etc.; Described interference signal intensity refers to the intensity of other interference signals in the residing wireless network environment of described UE, such as comprising: weak jamming, strong jamming etc.Concrete definite process can be carried out respectively up link and down link, will be elaborated in subsequent content.
Particularly, for the covering signal strength signal intensity of determining and the difference of interference signal intensity, described network side can be adjusted accordingly to described amount of radio resources, for example pass through RRM (Radio Resource Management, be called for short: RRM) the user's Access Algorithm strategy in the algorithm and dynamic channel adjustment (Dynamic Channel Configuration Control, be called for short: DCCC) algorithm policy is adjusted, and comes corresponding adjustment to distribute to the amount of radio resources of UE.Detailed process will be elaborated in follow-up content.
Below describe the process of the definite covering signal strength signal intensity described in the above-mentioned steps 200 in detail, shown in Fig. 2 A, determine that the process of the covering signal strength signal intensity of up link comprises:
Wherein, described ascending power thresholding is the threshold value of setting for comparing with uplink transmission power.
Wherein, when UE is in the weak overlay area of up link, UE can improve uplink transmission power, but weak covering is not the raising sole cause that causes uplink transmission power, when interference is excessive, UE also can improve uplink transmission power, therefore, in this step, when the uplink transmission power of measuring UE is excessive, still can not prove absolutely that this UE is in the weak overlay area of up link, but also will proceed as judging.
Wherein, by this step, got rid of owing to disturbing the excessive factor that causes uplink transmission power to improve, can be defined as weak covering this moment with the covering signal strength signal intensity of the up link of UE region.
Shown in Fig. 2 B, determine that the process of the covering signal strength signal intensity of down link comprises:
The down transmitting power that step 220, described network side measure self compares with the descending power thresholding of presetting.
Wherein, described descending power thresholding is the threshold value of setting for comparing with down transmitting power.
Similar to aforementioned up link, when UE is in the weak overlay area of down link, network side can improve down transmitting power, but weak covering is not the raising sole cause that causes down transmitting power, when interference is excessive, network side also can improve down transmitting power, therefore, in this step, when the down transmitting power of measuring network side is excessive, still can not prove absolutely that this UE is in the weak overlay area of down link, but also will proceed as judging.
Wherein, by this step, got rid of owing to disturbing the excessive factor that causes down transmitting power to improve, can be defined as weak covering this moment with the covering signal strength signal intensity of the down link of UE region.
Shown in Fig. 2 C, determine that by circuit loss value the process of the covering signal strength signal intensity of main broadcast singal comprises:
Wherein, the intensity of the described main broadcast signal strength main broadcast singal that to be network side send to UE, the value of this main broadcast signal strength can be informed UE by network side; Described main broadcast channel received signal strength is that UE is in the intensity of the signal that receives for the main broadcast channel that transmits main broadcast singal, particularly, this main broadcast channel can (Primary Common Control Physical Channel be called for short: P-CCPCH) for Primary Common Control Physical Channel.Owing to having path loss between network side and the UE, therefore, when main broadcast singal is transferred in main broadcast channel when reaching UE, received signal strength can be lower than described main broadcast signal strength, and the difference between them is circuit loss value.
Wherein, described line loss threshold is the thresholding of setting for the circuit loss value that calculates with step 230 compares, and when described circuit loss value surpassed this line loss threshold, the covering signal strength signal intensity that shows the main broadcast singal of UE region was weak covering; Described reception signalc threshold is the thresholding of setting for comparing with described main broadcast channel received signal strength, when described main broadcast channel received signal strength was lower than this reception signalc threshold, the covering signal strength signal intensity that also can show the main broadcast singal of UE region was weak covering.
In a word, in the present embodiment, as long as determine in the process shown in arbitrary among above-mentioned Fig. 2 A～2C that described covering signal strength signal intensity is weak covering, thinks that then the covering signal strength signal intensity of UE region is weak covering; In addition other situations think that all the covering signal strength signal intensity of UE region is non-weak the covering.
Below describe the process of the definite interference signal intensity described in the above-mentioned steps 200 in detail, shown in Fig. 2 D, determine that the process of the interference signal intensity of down link comprises:
Wherein, described uplink interference thresholding is the thresholding of setting for comparing with described uplink interference power.
Shown in Fig. 2 E, determine that the process of the interference signal intensity of down link comprises:
Wherein, described descending interference threshold is the thresholding of setting for comparing with described uplink interference power.
In a word, in the present embodiment, as long as determine in the process shown in arbitrary among above-mentioned Fig. 2 D and Fig. 2 E that described interference signal intensity is strong jamming, thinks that then the interference signal intensity of UE region is strong jamming; In addition other situations think that all the interference signal intensity of UE region is that incompetent is disturbed.
Below describe the detailed process of by network side amount of radio resources being adjusted in the above-mentioned steps 300 in detail, as shown in Figure 3, comprise the steps:
Step 310, when described covering signal strength signal intensity is weak covering or described interference signal intensity when being strong jamming, be adjusted to the required stock number of this UE with distributing under the amount of radio resources of described UE.
When the UE region is weak covering, if still for UE distributes more amount of radio resources, then may cause exhausting of power resource, thereby cause call drop etc. various unusual, therefore to reduce the amount of radio resources of distributing to UE, to save power resource.But normal professional in order to guarantee that UE carries out, need to make the amount of radio resources after the downward modulation satisfy at least the current demand to stock number of UE.
When the UE region is strong jamming, because the interaction that wireless signal disturbs if still for UE distributes more amount of radio resources, will increase this regional overall power level this moment, thereby so that is disturbed further aggravation.Therefore to reduce the amount of radio resources of distributing to UE, to avoid interference the risk of increase.
This step is adjusted into the strategy of taking into account user capacity and service-aware automatically under the network condition of heavy load.
Step 320, when described covering signal strength signal intensity is non-weak covers and described interference signal intensity is incompetent when disturbing, the real resource utilance of described wireless network environment and default target resource utilance are compared.
Wherein, resource utilization is defined as (the cell uplink business on average takies a yard resource sum+cell downlink business and on average takies a yard resource sum)/cell code resource sum.With TD SDMA (Time Division-Synchronous Code Division Multiple Access, be called for short: TD-SCDMA) technology is example, described cell uplink business on average takies yard resource and adds up to burst unit (the Brake Unite that " CR.MeanNbrAssnBruUl " carrier frequency uplink service on average takies, be called for short: BRU) sum, described cell downlink business on average take yard resource and add up to the BRU sum that " CR.MeanNbrAssnBruDl " carrier frequency downlink business on average takies).Described real resource utilance is the value that obtains after network side is measured and calculated according to prior art, and described target resource utilance is the predefined value of network manager.
Step 330, when described real resource utilance is lower than described target resource utilance, the amount of radio resources of described UE is distributed in rise, when described real resource utilance is higher than described target resource utilance, the amount of radio resources of described UE is distributed in downward modulation, until described real resource utilance reaches described target resource utilance.
When the covering signal strength signal intensity that identifies the current wireless network environment in step 320 is non-weak covers and interference signal intensity is that incompetent is when disturbing, can increase to the amount of radio resources that UE distributes, for example can raise user's access-in resource quantity by the initial access bandwidth that increases user's Access Algorithm strategy; Perhaps raise user's resource quantity at different levels by the bandwidth at different levels that increase in the dynamic resource adjustment algorithm strategy.In order to for UE distributes more amount of radio resources, reach the set goal resource utilization, thereby obtain the optimum network experience.This step has improved user's business and has used perception under the offered load of light load.
In addition, when described real resource utilance is not less than described target resource utilance, then can not adjust.
By the described method of the present embodiment, the amount of radio resources that the self adaptation adjustment distributes UE on the basis that wireless network environment is assessed, thereby can be under appropriate scene, more effectively distribute wireless network resource, realize the optimization of network performance, and can greatly reduce the workload that the network optimization is safeguarded, reduce cost, raise the efficiency, in order to realize efficiently the optimization of the whole network radio resource allocation strategy.
Fig. 4 is the structural representation of wireless communication system embodiment of the present invention, and in order to realize said method, as shown in the figure, this system comprises UE20 and network equipment 10, and its operation principle is as follows:
Behind the UE20 access network, carry out the wireless network environment assessment by evaluation module 21, and report described network equipment 10 by the assessment result that reporting module 22 obtains evaluation module 21.Particularly, as shown in Figure 5, this evaluation module 21 carries out power measurement by power measurement unit 2101, and obtains the power measurement result; Carry out interferometry by interferometry unit 2102, and obtain interference measurement results; After this, by described reporting module 22 described power measurement result and described interference measurement results are reported described network equipment 10.
After this, the amount of radio resources of distributing to described UE20 is adjusted according to the described assessment result that described UE20 reports by described network equipment 10.Particularly, as shown in Figure 4, this network equipment 10 can be determined by covering determination module 11 the covering signal strength signal intensity of the residing wireless network environment of described UE according to described power measurement result and interference measurement results, concrete mode can be referring to the related content of Fig. 2 A～Fig. 2 C; And this network equipment 10 can be determined the interference signal intensity of the residing wireless network environment of described UE20 by disturbing determination module 12 according to described interference measurement results, and concrete mode can be referring to the related content of Fig. 2 D～Fig. 2 E; Then, the amount of radio resources of distributing to described UE20 is adjusted according to covering the described covering signal strength signal intensity that determination module 11 determines and the described interference signal intensity of disturbing determination module 12 to determine by resource adjusting module 13, concrete adjustment process can be referring to Fig. 3 and related description.
By the described system of the present embodiment, the amount of radio resources that the self adaptation adjustment distributes UE on the basis that wireless network environment is assessed, thereby can be under appropriate scene, more effectively distribute wireless network resource, realize the optimization of network performance, and can greatly reduce the workload that the network optimization is safeguarded, reduce cost, raise the efficiency, in order to realize efficiently the optimization of the whole network radio resource allocation strategy.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (14)
1. an allocation of radio resources optimization method is characterized in that, comprising:
Carry out the wireless network environment assessment behind the UE access network, and assessment result is reported network side;
Described network side is adjusted the amount of radio resources of distributing to described UE according to the described assessment result that described UE reports.
2. method according to claim 1, it is characterized in that, described UE carries out wireless network environment assessment, and assessment result is reported network side comprises: described UE carries out power measurement and interferometry, and power measurement result and interference measurement results are reported described network side.
3. method according to claim 2 is characterized in that, described network side comprises the amount of radio resources adjustment of distributing to described UE according to the described assessment result that described UE reports:
Described network side is determined the covering signal strength signal intensity of the residing wireless network environment of described UE according to described power measurement result and interference measurement results that described UE reports, and determines the interference signal intensity of the residing wireless network environment of described UE according to described interference measurement results;
Described network side is adjusted the amount of radio resources of distributing to described UE according to described covering signal strength signal intensity and the interference signal intensity determined.
4. method according to claim 3 is characterized in that, described network side determines that according to described power measurement result and interference measurement results described covering signal strength signal intensity comprises:
Described network side compares the uplink transmission power among the described power measurement result and the ascending power thresholding of presetting;
When described uplink transmission power also keeps default duration above described ascending power thresholding, described network side the uplink interference power that self measures and the uplink interference thresholding of presetting are compared;
When described uplink interference power does not surpass described uplink interference thresholding, described covering signal strength signal intensity is defined as weak covering.
5. method according to claim 3 is characterized in that, described network side determines that according to described power measurement result and interference measurement results described covering signal strength signal intensity comprises:
The down transmitting power that described network side measures self compares with the descending power thresholding of presetting;
When described down transmitting power also keeps default duration above described descending power thresholding, the descending interference power in the described interference measurement results and the descending interference threshold of presetting are compared;
When described descending interference power does not surpass described descending interference threshold, described covering signal strength signal intensity is defined as weak covering.
6. method according to claim 3 is characterized in that, described network side determines that according to described power measurement result and interference measurement results described covering signal strength signal intensity comprises:
Described network side calculates circuit loss value according to the difference of the main broadcast signal strength of the main broadcast channel received signal strength among the described power measurement result and described wireless network environment;
When described circuit loss value surpasses default line loss threshold or described main broadcast channel received signal strength and is lower than default reception signalc threshold, determine that described covering signal strength signal intensity is weak covering.
7. method according to claim 3 is characterized in that, described network side determines that according to described interference measurement results described interference signal intensity comprises:
Described network side the uplink interference power that self measures and the uplink interference thresholding of presetting are compared;
When described uplink interference power surpasses described descending interference threshold and keeps default duration, described interference signal intensity is defined as strong jamming.
8. method according to claim 3 is characterized in that, described network side determines that according to described interference measurement results described interference signal intensity comprises:
Descending interference power in the described interference measurement results and the descending interference threshold of presetting are compared;
When described descending interference power surpasses described descending interference threshold and keeps default duration, described interference signal intensity is defined as strong jamming.
9. arbitrary described method according to claim 3～8, it is characterized in that, described network side comprises the amount of radio resources adjustment of distributing to described UE according to described covering signal strength signal intensity and the interference signal intensity determined: when described covering signal strength signal intensity is weak covering or described interference signal intensity when being strong jamming, be adjusted to the required stock number of this UE with distributing under the amount of radio resources of described UE.
10. method according to claim 9 is characterized in that, described network side comprises the amount of radio resources adjustment of distributing to described UE according to described covering signal strength signal intensity and the interference signal intensity determined:
When described covering signal strength signal intensity is non-weak covers and described interference signal intensity is incompetent when disturbing, the real resource utilance of described wireless network environment and default target resource utilance are compared;
When described real resource utilance is lower than described target resource utilance, the amount of radio resources of described UE is distributed in rise, when described real resource utilance is higher than described target resource utilance, the amount of radio resources of described UE is distributed in downward modulation, until described real resource utilance reaches described target resource utilance.
11. method according to claim 1 is characterized in that, carries out the wireless network environment assessment behind the described UE access network and comprises: behind the described UE access network, indicate described UE to carry out the wireless network environment assessment by described network side.
12. a wireless communication system is characterized in that, comprises UE and network equipment, wherein,
Described UE comprises:
Evaluation module is used for carrying out the wireless network environment assessment behind described UE access network;
Reporting module, the assessment result that is used for evaluation module is obtained reports described network equipment;
Described network equipment is used for according to the described assessment result that described UE reports the amount of radio resources of distributing to described UE being adjusted.
13. system according to claim 12 is characterized in that,
Described evaluation module comprises:
Power measurement unit is used for carrying out power measurement, and obtains the power measurement result;
The interferometry unit is used for carrying out interferometry, and obtains interference measurement results;
Described reporting module is used for described power measurement result and described interference measurement results are reported described network equipment.
14. system according to claim 13 is characterized in that, described network equipment comprises:
Cover determination module, be used for determining according to described power measurement result and interference measurement results the covering signal strength signal intensity of the residing wireless network environment of described UE;
Disturb determination module, be used for determining according to described interference measurement results the interference signal intensity of the residing wireless network environment of described UE;
The resource adjusting module is used for the described covering signal strength signal intensity of determining according to the covering determination module and the described interference signal intensity of disturbing determination module to determine adjusted the amount of radio resources of distributing to described UE.
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| CN104639234A (en) * | 2013-11-07 | 2015-05-20 | 珠海格力电器股份有限公司 | Method and device for evaluating interference intensity of infrared light |
| CN107408994A (en) * | 2015-02-24 | 2017-11-28 | 华为技术有限公司 | Communication equipment, control device and its method |
| CN107534879A (en) * | 2015-02-27 | 2018-01-02 | T移动美国公司 | Network diagnosis application |
| CN109155932A (en) * | 2016-12-02 | 2019-01-04 | 索尼公司 | Equipment and wireless communications method in wireless communication system |
| CN110401960A (en) * | 2018-04-25 | 2019-11-01 | 中国移动通信有限公司研究院 | A kind of determination method, network side equipment and the terminal of weak covering |
| CN113938927A (en) * | 2021-10-12 | 2022-01-14 | 中国联合网络通信集团有限公司 | Wireless network optimization method and device, electronic equipment and storage medium |
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