Summary of the invention
In view of this, the present invention provides a kind of parameter regulation means, base station and mobile terminal, with solve configuration transmitter andReceiver parameters algorithm is complicated, the problem of mobile terminal high-speed motion bad adaptability.
For solving above-mentioned technical problem, present invention employs following technical scheme:
A kind of parameter regulation means, is applied to base station, and described method includes:
When mobile terminal enters the coverage of base station, receive the prior information that mobile terminal sends；Described priori is believedBreath includes that mobile terminal locations, speed of mobile terminal, mobile terminal antenna position and mobile terminal antenna point to；
Enquiry mobile terminal position and the corresponding relation of channel parameter, obtain and mobile terminal described in described prior informationThe channel parameter that position is corresponding；
The parameter of the parameter configuration and base station receiver that are calculated base station transmitter according to described channel parameter is joinedConfidence ceases；
Parameter configuration and the parameter configuration of described base station receiver according to described base station transmitter complete baseThe parameter configuration of transmitter of standing and the parameter configuration of base station receiver.
Preferably, the generating mode of the corresponding relation of described mobile terminal locations and channel parameter is:
Channel estimation is carried out according to the reference signal corresponding with mobile terminal locations that mobile terminal sends；
The result estimated according to described channel and described mobile terminal locations obtain mobile terminal locations and channel parameterCorresponding relation.
Preferably, described parameter configuration and the base station reception being calculated base station transmitter according to described channel parameterThe parameter configuration of machine, specifically includes:
According to described channel parameter analysis obtain output parameter and with described mobile terminal locations, described output parameter pairThe transmission performance answered；
Gradient descent algorithm, machine learning algorithm or natural selection is utilized according to described output parameter and described transmission performanceAlgorithm is calculated the parameter configuration of base station transmitter and the parameter configuration of base station receiver.
A kind of parameter regulation means, is applied to base station, and described method includes:
When mobile terminal enters the coverage of base station, receive the prior information that mobile terminal sends；Described priori is believedBreath includes that mobile terminal locations, speed of mobile terminal, mobile terminal antenna position and mobile terminal antenna point to；
Enquiry mobile terminal position and the corresponding relation of channel parameter, obtain and mobile terminal described in described prior informationThe channel parameter that position is corresponding；
The parameter configuration of the parameter configuration of base station transmitter, base station receiver it is calculated according to described channel parameterInformation, the parameter configuration of mobile terminal transmitter and the parameter configuration of mobile terminal receiver；
Parameter configuration and the parameter configuration of described base station receiver according to described base station transmitter complete baseThe parameter configuration of transmitter of standing and the parameter configuration of base station receiver；
By parameter configuration and the parameter configuration of described mobile terminal receiver of described mobile terminal transmitterSend to mobile terminal.
Preferably, the generating mode of the corresponding relation of described mobile terminal locations and channel parameter is:
Channel estimation is carried out according to the reference signal corresponding with mobile terminal locations that mobile terminal sends；
The result estimated according to described channel and described mobile terminal locations obtain mobile terminal locations and channel parameterCorresponding relation.
Preferably, described according to described channel parameter be calculated the parameter configuration of base station transmitter, base station receiveThe parameter configuration of machine, the parameter configuration of mobile terminal transmitter and the parameter configuration of mobile terminal receiver,Specifically include:
According to described channel parameter analysis obtain output parameter and with described mobile terminal locations, described output parameter pairThe transmission performance answered；
Gradient descent algorithm, machine learning algorithm or natural selection is utilized according to described output parameter and described transmission performanceAlgorithm is calculated the parameter configuration of base station transmitter, the parameter configuration of base station receiver, mobile terminal transmitterParameter configuration and the parameter configuration of mobile terminal receiver.
A kind of parameter regulation means, is applied to mobile terminal, and described method includes:
When entering the coverage of base station, obtain prior information；Described prior information includes mobile terminal locations, movementTerminal velocity, mobile terminal antenna position and mobile terminal antenna point to；
Enquiry mobile terminal position and the corresponding relation of channel parameter, obtain and mobile terminal described in described prior informationThe channel parameter that position is corresponding；
Parameter configuration and the mobile terminal receiver of mobile terminal transmitter it is calculated according to described channel parameterParameter configuration；
Parameter configuration according to described mobile terminal transmitter and the parameter configuration letter of described mobile terminal receiverParameter configuration and the parameter configuration of mobile terminal receiver of mobile terminal transmitter are ceased；
Described prior information is sent to base station.
The generating mode of the corresponding relation of the most described mobile terminal locations and channel parameter is:
Channel estimation is carried out according to the reference signal corresponding with mobile terminal locations；
The result estimated according to described channel and described mobile terminal locations obtain mobile terminal locations and channel parameterCorresponding relation.
Preferably, described parameter configuration and the movement being calculated mobile terminal transmitter according to described channel parameterThe parameter configuration of terminal receiver, specifically includes:
According to described channel parameter analysis obtain output parameter and with described mobile terminal locations, described output parameter pairThe transmission performance answered；
Gradient descent algorithm, machine learning algorithm or natural selection is utilized according to described output parameter and described transmission performanceAlgorithm is calculated parameter configuration and the parameter configuration of mobile terminal receiver of mobile terminal transmitter.
A kind of parameter regulation means, is applied to mobile terminal, and described method includes:
When entering the coverage of base station, obtain prior information；Described prior information includes mobile terminal locations, movementTerminal velocity, mobile terminal antenna position and mobile terminal antenna point to；
Described prior information is sent to base station；
Receive parameter configuration and the parameter configuration of mobile terminal receiver of the mobile terminal transmitter that base station sendsInformation；
Parameter configuration according to described mobile terminal transmitter and the parameter configuration letter of described mobile terminal receiverParameter configuration and the parameter configuration of mobile terminal receiver of mobile terminal transmitter are ceased.
A kind of base station, described base station includes: processor and memorizer；
Described processor, for processing according to the above-mentioned method being applied to base station, and the result after processing sendsTo memorizer；
Described memorizer, for storing the result after described processor processes.
A kind of mobile terminal, described mobile terminal includes: processor and memorizer；
Described processor, for processing according to the above-mentioned method being applied to mobile terminal, and the result after processingSend to memorizer；
Described memorizer, for storing the result after described processor processes.
Compared to prior art, the method have the advantages that
The invention provides a kind of parameter regulation means, base station and mobile terminal, enquiry mobile terminal position and channel ginsengThe corresponding relation of number, obtains the channel parameter corresponding with mobile terminal locations described in described prior information；According to described channelParameter is calculated the parameter configuration of base station transmitter, the parameter configuration of base station receiver, mobile terminal transmitterParameter configuration and the parameter configuration of mobile terminal base station receiver, and complete base station transmitter, base station receiver,Mobile terminal transmitter, the parameter configuration of mobile terminal receiver.The track travelled due to rail vehicle in the present invention is fixed, energyEnough directly obtain channel parameter according to the corresponding relation of terminal location and channel parameter, it is no longer necessary in each position of rail vehiclePutting and be analyzed obtaining channel parameter, solve the problem that general method for parameter configuration is complicated, meanwhile, mobile terminal is sent toBase station is prior information, owing to the prior information such as speed, position will not be suddenlyd change, does not have very when prior information arrives base stationBig error, thus the problem solving mobile terminal high-speed motion bad adaptability.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, completeDescribe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based onEmbodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premiseEmbodiment, broadly falls into the scope of protection of the invention.
Field of track traffic, radio communications system specifically includes that WiFi and the LTE-M system of urban track traffic, ferrumThe Radio Train Dispatch Communication System in field, road, the GSM-R system etc. of high speed passenger dedicated railway.The electromagnetic wave propagation channel of radio communication existsThe Some features of self:
(1) running of mobile terminal circuit is fixed；
(2) mobile terminal uses aerial position and sensing are fixing；
(3) mobile terminal is obtained in that the current position of self, velocity information；
(4) mobile terminal can be able to tell that motion；
(5) channel circumstance between mobile terminal and base station will not occur quick time-varying, and between mobile terminal and base stationGenerally there are synchronization loss LOS footpath；
(6) mobile terminal switching position between base station is substantially stationary.
The invention provides one and be applied to base station parameter method of adjustment, with reference to Fig. 1, need explanation a bit, due to canWith at mobile terminal side deployment parameters calculation server, it is also possible to not at mobile terminal side deployment parameters calculation server, Fig. 1 pairThe embodiment answered belongs to the situation of mobile terminal side deployment parameters calculation server.Described method includes:
The prior information that S101, reception mobile terminal send；
It should be noted that when mobile terminal enters the coverage of base station, mobile terminal and base station can be carried outCommunication, when mobile terminal is not in the range of base station covers, both can not communicate, and described prior information includes mobile wholeEnd position, speed of mobile terminal, mobile terminal antenna position and mobile terminal antenna point to.These prior informations are transfer terminalsObtained by the train control system measurement on self train.
S102, enquiry mobile terminal position and the corresponding relation of channel parameter, obtain moving with described in described prior informationThe channel parameter that dynamic terminal location is corresponding；
It should be noted that the generating mode of the corresponding relation of described mobile terminal locations and channel parameter is:
Channel estimation is carried out according to the reference signal corresponding with mobile terminal locations that mobile terminal sends；
The result estimated according to described channel and described mobile terminal locations obtain mobile terminal locations and channel parameterCorresponding relation.
Wherein, the corresponding relation of mobile terminal locations and channel parameter is between mobile terminal locations and channel parameterPlant mapping relations.Owing to the running orbit of train is fixed, train can be allowed in advance to carry out examination along track and to run, obtain each movementTerminal location and the corresponding relation of channel parameter.After setting up corresponding relation, can directly according to corresponding relation inquiry obtain withThe channel parameter that mobile terminal locations is corresponding.
Before setting up corresponding relation, need to configure the base station of base station and mobile terminal to be set to measuring parameters in channels mouldFormula, now, all of running time-frequency resource is used for sending reference signal by mobile terminal.Base station receives the reference letter that mobile terminal is sentAfter number, the channel carrying out full running time-frequency resource according to reference signal is estimated, is combining mobile terminal locations, is completing mobile terminal positionPut the correspondence between channel parameter, obtain the corresponding relation of mobile terminal locations and channel parameter.
S103, the parameter configuration being calculated base station transmitter according to described channel parameter and the ginseng of base station receiverNumber configuration information；
Wherein, the parameter configuration of base station transmitter and the parameter configuration of base station receiver are for Base TransmitterThe parameter configuration of machine and the parameter configuration of base station receiver.After completing configuration, it is possible to make base station and mobile terminal preferably carry outCommunication.
S104, complete according to the parameter configuration of described base station transmitter and the parameter configuration of described base station receiverBecome parameter configuration and the parameter configuration of base station receiver of base station transmitter.
In the present embodiment, enquiry mobile terminal position and the corresponding relation of channel parameter, obtain with in described prior informationThe channel parameter that described mobile terminal locations is corresponding；The parameter configuration letter of base station transmitter it is calculated according to described channel parameterCease the parameter configuration with base station receiver and complete the parameter configuration of base station transmitter and base station receiver.In the present invention byThe track travelled in rail vehicle is fixed, it is possible to directly obtain channel ginseng according to the corresponding relation of terminal location and channel parameterNumber, it is no longer necessary to be analyzed obtaining channel parameter in each position of rail vehicle, solve general method for parameter configurationComplicated problem, meanwhile, what mobile terminal was sent to base station is prior information, owing to the prior information such as speed, position will not be dashed forwardBecome, do not have the biggest error when prior information arrives base station, thus solve mobile terminal high-speed motion bad adaptabilityProblem.
Optionally, in another embodiment of the present invention, described it is calculated base station transmitter according to described channel parameterParameter configuration and the parameter configuration of base station receiver, specifically include:
According to described channel parameter analysis obtain output parameter and with described mobile terminal locations, described output parameter pairThe transmission performance answered；
Gradient descent algorithm, machine learning algorithm or natural selection is utilized according to described output parameter and described transmission performanceAlgorithm is calculated the parameter configuration of base station transmitter and the parameter configuration of base station receiver.
Concrete, it is calculated the parameter configuration of base station transmitter and base station receiver according to described channel parameterParameter configuration is to be performed by the parameter calculation server of base station deployment.Due to field of track traffic, the position of mobile terminalPut and be limited in track-bound, and the antenna of mobile terminal and base station points to and will not change, so in track-boundChannel circumstance is not rambling, but has stability in longer time scale.
Output parameter obtains according to channel parameter, then obtains corresponding with described mobile terminal locations, described output parameterTransmission performance, when judging described output parameter and described transmission performance is not optimum, utilize gradient descent algorithm, engineeringPractise algorithm or natural selection algorithm is calculated the parameter configuration of base station transmitter and the parameter configuration letter of base station receiverBreath.
Wherein, the calculating process of gradient descent algorithm is exactly to solve minimum along the direction that gradient declines.At this programmeIn, i.e. find radio communication system transmission performance variable gradient direction, determine parameter configuration and the base of base station transmitterStand the parameter configuration of receiver.
Machine learning algorithm is to utilize the methods such as naive Bayesian, it is thus achieved that the probability between output parameter and transmission performance closesSystem, thus output obtains the parameter configuration of base station transmitter of optimal output performance and base station receiver with maximum of probabilityParameter configuration.
Natural selection algorithm is to utilize genetic algorithm, constantly abandons the parameter causing transmission performance to deteriorate, thus obtains baseThe parameter configuration of transmitter of standing and the parameter configuration of base station receiver.
In the present embodiment, gradient descent algorithm, machine learning algorithm or natural selection algorithm is used to be calculated base station and send outPenetrate the parameter configuration of machine and the parameter configuration of base station receiver, it is possible to ensure mobile terminal and base station communication channels matterMeasure best.
Optionally, another embodiment of the present invention provides another parameter regulation means being applied to base station, ginsengAccording to Fig. 2, it should be noted that this method base station side does not has deployment parameters calculation server.Described method includes:
The prior information that S201, reception mobile terminal send；
Wherein, described prior information includes mobile terminal locations, speed of mobile terminal, mobile terminal antenna position and movementTerminal antenna points to.
S202, enquiry mobile terminal position and the corresponding relation of channel parameter, obtain moving with described in described prior informationThe channel parameter that dynamic terminal location is corresponding；
It should be noted that the generating mode of the corresponding relation of described mobile terminal locations and channel parameter is:
Channel estimation is carried out according to the reference signal corresponding with mobile terminal locations that mobile terminal sends；
The result estimated according to described channel and described mobile terminal locations obtain mobile terminal locations and channel parameterCorresponding relation.
S203, it is calculated the ginseng of the parameter configuration of base station transmitter, base station receiver according to described channel parameterNumber configuration information, the parameter configuration of mobile terminal transmitter and the parameter configuration of mobile terminal receiver；
S204, complete according to the parameter configuration of described base station transmitter and the parameter configuration of described base station receiverBecome parameter configuration and the parameter configuration of base station receiver of base station transmitter；
S205, by the parameter configuration of described mobile terminal transmitter and the parameter configuration of described mobile terminal receiverInformation sends to mobile terminal.
It should be noted is that, owing to mobile terminal side does not has deployment parameters calculation server, so needing base station to incite somebody to actionThe parameter configuration of mobile terminal transmitter and the parameter configuration of described mobile terminal receiver are calculated, and retransmitTo mobile terminal.
Owing to the step in the present embodiment has identical part with the step in above-described embodiment, refer to above-mentioned enforcementExample, is not repeating at this.
In the present embodiment, enquiry mobile terminal position and the corresponding relation of channel parameter, obtain with in described prior informationThe channel parameter that described mobile terminal locations is corresponding；The parameter configuration letter of base station transmitter it is calculated according to described channel parameterBreath, the parameter configuration of base station receiver, the parameter configuration of mobile terminal transmitter and mobile terminal base station receiverParameter configuration, and complete the parameter configuration of base station transmitter and base station receiver.Due to rail vehicle row in the present inventionThe track sailed is fixed, it is possible to directly obtain channel parameter according to the corresponding relation of terminal location and channel parameter, it is no longer necessary toEach position of rail vehicle is analyzed obtaining channel parameter, solves the problem that general method for parameter configuration is complicated, withTime, what mobile terminal was sent to base station is prior information, owing to the prior information such as speed, position will not be suddenlyd change, in prior informationA biggest error is not had when arriving base station, thus the problem solving mobile terminal high-speed motion bad adaptability.
Optionally, in another embodiment of the present invention, described it is calculated base station transmitter according to described channel parameterParameter configuration and the parameter configuration of base station receiver, specifically include:
According to described channel parameter analysis obtain output parameter and with described mobile terminal locations, described output parameter pairThe transmission performance answered；
Gradient descent algorithm, machine learning algorithm or natural selection is utilized according to described output parameter and described transmission performanceAlgorithm is calculated the parameter configuration of base station transmitter and the parameter configuration of base station receiver.
In the present embodiment, gradient descent algorithm, machine learning algorithm or natural selection algorithm is used to be calculated base station and send outPenetrate the parameter configuration of machine and the parameter configuration of base station receiver, it is possible to ensure mobile terminal and base station communication channels matterMeasure best.
It should be noted that the step in the present embodiment refers to the content in above-described embodiment, do not repeat them here.
Optionally, another embodiment of the present invention provides one and is applied to mobile terminal parameter regulation means, needIllustrating, in the present embodiment, mobile terminal side deploys parameter-calculation method server.With reference to Fig. 3.Described method includes:
S301, acquisition prior information；
Wherein, described prior information includes mobile terminal locations, speed of mobile terminal, mobile terminal antenna position and movementTerminal antenna points to.
S302, enquiry mobile terminal position and the corresponding relation of channel parameter, obtain moving with described in described prior informationThe channel parameter that dynamic terminal location is corresponding；
It should be noted that the generating mode of the corresponding relation of described mobile terminal locations and channel parameter is:
Channel estimation is carried out according to the reference signal corresponding with mobile terminal locations；
The result estimated according to described channel and described mobile terminal locations obtain mobile terminal locations and channel parameterCorresponding relation.
It should be noted that querying method is the same with base station side, simply in the present embodiment, mobile terminal side is provided with parameterCalculation server, so queried channel parameter can complete at mobile terminal side.
S303, the parameter configuration being calculated mobile terminal transmitter according to described channel parameter and mobile terminal connectThe parameter configuration of receipts machine；
It should be noted that computational methods are with the parameter configuration of base station side calculation base station transmitter and base station receiverParameter configuration the same, refer to above-described embodiment, do not repeat them here.
S304, join according to the parameter configuration of described mobile terminal transmitter and the parameter of described mobile terminal receiverConfidence has ceased parameter configuration and the parameter configuration of mobile terminal receiver of mobile terminal transmitter；
S305, by described prior information send to base station.
It should be noted that send described prior information to base station, it is to ensure that base station can be launched by calculation base stationThe parameter configuration of machine and the parameter configuration of base station receiver.
In the present embodiment, enquiry mobile terminal position and the corresponding relation of channel parameter, obtain with in described prior informationThe channel parameter that described mobile terminal locations is corresponding；The parameter being calculated mobile terminal transmitter according to described channel parameter is joinedConfidence breath and the parameter configuration of mobile terminal base station receiver, and complete mobile terminal transmitter and mobile terminal receiverParameter configuration.The track travelled due to rail vehicle in the present invention is fixed, it is possible to directly according to terminal location and channel parameterCorresponding relation obtain channel parameter, it is no longer necessary to be analyzed obtaining channel parameter in each position of rail vehicle, solveThe problem that general method for parameter configuration is complicated, meanwhile, what mobile terminal was sent to base station is prior information, due to speed,The prior informations such as position will not be suddenlyd change, and does not have the biggest error when prior information arrives base station, thus solves mobile wholeThe problem of end high-speed motion bad adaptability.
It should be noted that some step is consistent with the step in above-described embodiment, it is not repeated herein, refers to above-mentioned realityExecute the content in example.
Optionally, in another embodiment of the present invention, described according to described channel parameter be calculated mobile terminal launchThe parameter configuration of machine and the parameter configuration of mobile terminal receiver, specifically include:
According to described channel parameter analysis obtain output parameter and with described mobile terminal locations, described output parameter pairThe transmission performance answered；
Gradient descent algorithm, machine learning algorithm or natural selection is utilized according to described output parameter and described transmission performanceAlgorithm is calculated parameter configuration and the parameter configuration of mobile terminal receiver of mobile terminal transmitter.
It should be noted that this step is consistent with the step in above-described embodiment, it is not repeated herein, refers to above-mentioned enforcementContent in example.
In the present embodiment, gradient descent algorithm, machine learning algorithm or natural selection algorithm is used to be calculated mobile wholeThe parameter configuration of end transmitter and the parameter configuration of mobile terminal receiver, it is possible to ensure that mobile terminal leads to base stationLetter channel quality is best.
Optionally, another embodiment of the present invention provides one and is applied to mobile terminal parameter regulation means, needIllustrate, in the present embodiment, mobile terminal side non-deployment parameters meter arithmetic server.With reference to Fig. 4.Described method includes:
S401, acquisition prior information；
Wherein, described prior information includes mobile terminal locations, speed of mobile terminal, mobile terminal antenna position and movementTerminal antenna points to；
S402, by described prior information send to base station；
S403, the parameter configuration receiving the mobile terminal transmitter that base station sends and the parameter of mobile terminal receiverConfiguration information；
S404, join according to the parameter configuration of described mobile terminal transmitter and the parameter of described mobile terminal receiverConfidence has ceased parameter configuration and the parameter configuration of mobile terminal receiver of mobile terminal transmitter.
In the present embodiment, the parameter configuration and the mobile terminal base station that receive the mobile terminal transmitter that base station sends connectThe parameter configuration of receipts machine, and complete mobile terminal transmitter, the parameter configuration of mobile terminal receiver.In the present invention due toThe track that rail vehicle travels is fixed, it is possible to directly obtain channel parameter according to the corresponding relation of terminal location and channel parameter,It is no longer necessary to be analyzed obtaining channel parameter in each position of rail vehicle, solves general method for parameter configuration complicatedProblem, meanwhile, what mobile terminal was sent to base station is prior information, owing to the prior information such as speed, position will not be suddenlyd change,Prior information does not have a biggest error when arriving base station, thus the problem solving mobile terminal high-speed motion bad adaptability.
It should be noted that some step is consistent with the step in above-described embodiment, it is not repeated herein, refers to above-mentioned realityExecute the content in example.
Optionally, providing a kind of base station in another embodiment of the present invention, described base station includes: processor and storageDevice；
Described processor, for processing according to above-mentioned method, and the result after processing sends to memorizer；InstituteState memorizer, for storing the result after described processor processes.
Optionally, providing a kind of mobile terminal in another embodiment of the present invention, described mobile terminal includes: processorAnd memorizer；
Described processor, for processing according to above-mentioned method, and the result after processing sends to memorizer；InstituteState memorizer, for storing the result after described processor processes.
Above-described embodiment describes base station and mobile terminal, base station and mobile terminal and adopts and process with the aforedescribed process,The track travelled due to rail vehicle is fixed, it is possible to directly obtain channel ginseng according to the corresponding relation of terminal location and channel parameterNumber, it is no longer necessary to be analyzed obtaining channel parameter in each position of rail vehicle, solve general method for parameter configurationComplicated problem, meanwhile, what mobile terminal was sent to base station is prior information, owing to the prior information such as speed, position will not be dashed forwardBecome, do not have the biggest error when prior information arrives base station, thus solve mobile terminal high-speed motion bad adaptabilityProblem.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined hereinGeneral Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present inventionIt is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase oneThe widest scope caused.