CN-121985338-A - Method, device and system for dynamically allocating frequency spectrum and electronic equipment

CN121985338ACN 121985338 ACN121985338 ACN 121985338ACN-121985338-A

Abstract

The embodiment of the application discloses a method, a device, a system and electronic equipment for dynamically allocating spectrum, wherein the method is applied to a control node and comprises the steps of acquiring an initial scheme for spectrum allocation, wherein the initial scheme is generated based on data of target equipment acquired in real time and comprises at least one spectrum range; the method comprises the steps of dividing a frequency spectrum range according to a preset step length to obtain a plurality of candidate schemes, determining an optimal scheme among the plurality of candidate schemes based on the frequency spectrum residual rate, the communication quality index and the load balancing index of a base station, and distributing the frequency spectrum to the base station according to the optimal scheme, wherein target equipment is one or more equipment in the coverage range of the base station.

Inventors

LI ZHUO
ZHANG SHUHAO
WANG JIA
SUN HAO
DAI XINYU
SUN LIQIANG
GUO YANAN
LIU FENG

Assignees

中国移动通信集团设计院有限公司
中国移动通信集团有限公司

Dates

Publication Date: 20260505
Application Date: 20251216

Claims (18)

1. A method of dynamically allocating spectrum for a control node, the method comprising: Acquiring an initial scheme of spectrum allocation, wherein the initial scheme is generated based on data of target equipment acquired in real time, and the initial scheme comprises at least one spectrum range; Dividing the frequency spectrum range according to a preset step length to obtain a plurality of candidate schemes; determining an optimal scheme from the plurality of candidate schemes based on the spectrum residual rate, the communication quality index and the load balancing index of the base station; allocating frequency spectrum to the base station according to the optimal scheme; the target device is one or more devices within the coverage area of the base station.
2. The method of claim 1, wherein the determining an optimal solution among the plurality of candidate solutions based on a spectrum residual rate, a communication quality index, and a load balancing index of the base station comprises: calculating an objective function of the candidate scheme based on the spectrum residual rate, the communication quality index and the load balancing index of the base station; calculating an objective function difference value according to the objective function of the candidate scheme, calculating an acceptance probability according to the current temperature and the objective function difference value, generating a random number, comparing the random number with the acceptance probability, and determining a current optimal solution of the objective function; And repeatedly iterating and determining a current optimal solution according to the current temperature and the cooling rate until the current temperature is reduced to the target temperature or the iteration times reach the target times, so as to obtain a global optimal solution of the target function as an optimal scheme of spectrum allocation.
3. The method of claim 2, wherein the calculating the objective function of the candidate solution based on the base station's spectral residual rate, the communication quality indicator, and the load balancing indicator comprises: Calculating an objective function of the candidate scheme based on the spectrum residual rate, the communication quality index and the load balancing index of the base station by using the following formula: ; ; ; ; ; Wherein f represents an objective function of the candidate scheme, R represents a spectrum residual rate, Q represents a communication quality index, B represents a load balancing index, Representing the total bandwidth of the available spectrum, Indicating that the allocated bandwidth of the spectrum is available, Indicating the average bit error rate (ber), Represents the average transmission delay, a identifies the bit error rate threshold, b represents the transmission delay threshold, n represents the number of base stations, Representing the load of each base station, Indicating the average load of the base station, A weight representing the residual rate of the spectrum, A weight indicating an index of the communication quality, And the weight of the load balancing index is represented.
4. The method of claim 2, wherein said calculating an objective function difference from an objective function of said candidate solution, calculating an acceptance probability from a current temperature and said objective function difference, generating a random number and comparing with said acceptance probability, determining a current optimal solution for said objective function, comprises: determining a current candidate scheme and an alternative candidate scheme among the plurality of candidate schemes; Calculating an objective function difference value according to the objective function of the current candidate scheme and the objective function of the alternative candidate scheme; calculating an acceptance probability P according to the current temperature and the objective function difference value; Generating a random number r, if r is less than or equal to P, taking the alternative candidate scheme as the current optimal solution of the objective function, and if r is more than P, taking the current candidate scheme as the current optimal solution of the objective function; Wherein r is more than or equal to 0 and less than or equal to 1.
5. The method as recited in claim 1, further comprising: in case of emergency service, the optimal scheme is adjusted according to at least one of the following: Temporarily allocating an idle frequency band and/or a reserved frequency band for the emergency service; Increasing the weight of the emergency service; temporarily relaxing the communication quality requirements of non-emergency services.
6. The method of claim 1, further comprising at least one of: Under the condition that the load of a certain frequency band in the optimal scheme exceeds a load threshold, the weight of common business in the frequency band is reduced, and the frequency band occupied by an idle frequency band or a low priority is recovered; Under the condition of communication peak or important business, the reserved global frequency band is adjusted; And setting the frequency spectrum in the optimal scheme to be shared by a plurality of base stations under the condition that the base stations are a plurality of base stations and the coverage areas are overlapped.
7. The method as recited in claim 1, further comprising: monitoring the receiving power SS-RSRP of the synchronous signal reference signal, the signal-to-interference plus noise ratio SS-SINR of the synchronous signal and the error rate in real time; If the SS-RSRP is lower than a first threshold, optimizing a transmitting end parameter by using a dynamic power adjustment algorithm; if the SS-SINR is lower than a second threshold value, using an adaptive filtering technology to suppress noise; and if the error rate is higher than a third threshold value, correcting or retransmitting by using the forward error correction coding.
8. The method as recited in claim 1, further comprising: Calculating spectrum void ratio based on the bandwidth idle proportion threshold; calculating the frequency spectrum switching frequency of the base station; Reducing the frequency spectrum switching frequency by using a switching suppression algorithm under the condition that the frequency spectrum switching frequency exceeds a switching threshold value; and under the condition that the load of the base station is larger than a load threshold, reducing the bandwidth idle proportion threshold to adjust the spectrum void ratio and improving the upper limit threshold of the spectrum switching frequency.
9. The method of claim 8, wherein calculating the spectral void fraction based on the bandwidth idle proportion threshold comprises: Calculating the spectrum void ratio in the statistical period according to the following formula: ; ; ; Wherein, the Representing the length of occupied time of the kth frequency band in the statistical period, Indicating the end time of the ith use of the kth frequency band in the statistical period, Indicating the start time of the ith use of the kth frequency band in the statistical period, N indicating the total number of times the kth frequency band is used in the statistical period, Indicating the idle duration of the kth frequency band in the statistical period, The period of the statistics is represented as, The spectral void fraction is represented by the ratio, Representing a continuous idle time threshold value, Representing a bandwidth idle proportion threshold value, Indicating a function, the value of the exponential function is 1 when the condition in the brackets is satisfied, the value is 0 when the condition in the brackets is not satisfied, Representing the total bandwidth of the kth frequency band during the statistical period, The idle bandwidth of the kth frequency band in the statistical period is represented, and K represents the number of the frequency bands.
10. The method as recited in claim 1, further comprising: the liveness of each frequency band in the statistical period is calculated according to the following formula: ; Wherein, the Indicating the activity of the kth frequency band in the statistical period, Indicating the number of uses of the kth frequency band in the statistical period, Representing the bandwidth of the kth frequency band during the statistical period, Representing a statistical period; and splitting the kth frequency band into a plurality of sub-frequency bands for distribution under the condition that the liveness is larger than an liveness threshold value.
11. The method as recited in claim 1, further comprising: monitoring the speed of the target equipment in real time; Reducing a spectrum sensing period and reducing a continuous idle time threshold in the case that the moving speed of the target device is greater than a speed threshold The said For calculating the spectral void fraction.
12. An apparatus for dynamically allocating spectrum for use in a control node, the apparatus comprising: the acquisition module is used for acquiring an initial scheme of spectrum allocation, the initial scheme is generated based on data of target equipment acquired in real time, and the initial scheme comprises at least one spectrum range; the dividing module is used for dividing the frequency spectrum range according to a preset step length to obtain a plurality of candidate schemes; the determining module is used for determining an optimal scheme from the plurality of candidate schemes based on the spectrum residual rate, the communication quality index and the load balancing index of the base station; The allocation module is used for allocating frequency spectrums for the base stations according to the optimal scheme; the target device is one or more devices within the coverage area of the base station.
13. A system for dynamically allocating spectrum, the system comprising: The edge node is used for collecting data of the target equipment in real time, and carrying out feature extraction on the data to obtain feature information, wherein the feature information comprises at least one of frequency domain features, time features and space features; The central node is used for generating an initial scheme of spectrum allocation based on a preset weight by adopting a greedy algorithm according to the characteristic information obtained by the edge node, wherein the initial scheme comprises at least one spectrum range; The control node is used for acquiring the initial scheme generated by the central node, dividing the frequency spectrum range according to a preset step length to obtain a plurality of candidate schemes, determining an optimal scheme among the plurality of candidate schemes based on the frequency spectrum residual rate, the communication quality index and the load balancing index of the base station, and distributing frequency spectrum to the base station according to the optimal scheme; the target device is one or more devices within the coverage area of the base station.
14. The system of claim 13, wherein the edge node performs feature extraction on the data to obtain feature information, including: If the proportion of the missing data in the data is smaller than or equal to a preset proportion, filling the missing data by using the average value or the median of the undelayed data; If the proportion of the missing data in the data is larger than the preset proportion, predicting and filling the missing data by using a time sequence model or a machine learning regression model; Removing noise data from the filled data; Carrying out feature extraction on the data obtained after removing the noise data to obtain feature information; and labeling each parameter in the characteristic information based on the corresponding initial threshold value, wherein the labeling content is excellent or poor.
15. The system of claim 13, wherein the edge node performs feature extraction on the data using a neural network model to obtain feature information, wherein the neural network model comprises: the CNN layer is used for extracting the characteristics of the input data and outputting frequency domain characteristics; a pooling layer for transforming the frequency domain features; The LSTM layer is used for extracting the characteristics of the input data and outputting time domain characteristics and space characteristics; The first full-connection layer is used for carrying out multi-dimensional semantic analysis on the frequency domain features, the time domain features and the space features according to a plurality of preset semantic subspaces and learning feature association; And the second full-connection layer is used for compressing the characteristic dimension of the output result of the first full-connection layer.
16. An electronic device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method of dynamically allocating spectrum as claimed in any one of claims 1-11.
17. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the method of dynamically allocating spectrum according to any of claims 1-11.
18. A computer program product comprising a computer program which, when executed by a processor, implements the steps of the method of dynamically allocating spectrum of any of claims 1-11.

Description

Method, device and system for dynamically allocating frequency spectrum and electronic equipment Technical Field The present application relates to the field of wireless technologies, and in particular, to a method, an apparatus, a system, and an electronic device for dynamically allocating spectrum. Background In an offshore communication system, a distributed mobile network node cluster can be formed by deploying unmanned ship-mounted communication base station equipment. The mobile network node cluster relies on autonomous navigation and wireless communication technology, can realize wide area communication coverage of ocean areas, emergency communication guarantee and offshore scene data return, has the advantages of strong maneuverability, flexible deployment and adaptation to complex sea conditions, supports communication requirements of scenes such as ocean monitoring, offshore operation, rescue and relief work and the like, and is an important mobile infrastructure for ocean informatization construction. Currently, the offshore communication system focuses on technologies such as track prediction, signal transmission optimization and the like, and does not relate to a spectrum resource allocation technology. Disclosure of Invention The embodiment of the application aims to provide a method, a device, a system and electronic equipment for dynamically allocating frequency spectrums, so as to solve the problems in the prior art. In order to solve the technical problems, the embodiment of the application is realized as follows: in a first aspect, a method for dynamically allocating spectrum provided by an embodiment of the present application is applied to a control node, and the method includes: Acquiring an initial scheme of spectrum allocation, wherein the initial scheme is generated based on data of target equipment acquired in real time, and the initial scheme comprises at least one spectrum range; Dividing the frequency spectrum range according to a preset step length to obtain a plurality of candidate schemes; determining an optimal scheme from the plurality of candidate schemes based on the spectrum residual rate, the communication quality index and the load balancing index of the base station; allocating frequency spectrum to the base station according to the optimal scheme; the target device is one or more devices within the coverage area of the base station. In a second aspect, an embodiment of the present application provides an apparatus for dynamically allocating spectrum, applied to a control node, where the apparatus includes: the acquisition module is used for acquiring an initial scheme of spectrum allocation, the initial scheme is generated based on data of target equipment acquired in real time, and the initial scheme comprises at least one spectrum range; the dividing module is used for dividing the frequency spectrum range according to a preset step length to obtain a plurality of candidate schemes; the determining module is used for determining an optimal scheme from the plurality of candidate schemes based on the spectrum residual rate, the communication quality index and the load balancing index of the base station; The allocation module is used for allocating frequency spectrums for the base stations according to the optimal scheme; the target device is one or more devices within the coverage area of the base station. In a third aspect, an embodiment of the present application provides a system for dynamically allocating spectrum, the system comprising: The edge node is used for collecting data of the target equipment in real time, and carrying out feature extraction on the data to obtain feature information, wherein the feature information comprises at least one of frequency domain features, time features and space features; The central node is used for generating an initial scheme of spectrum allocation based on a preset weight by adopting a greedy algorithm according to the characteristic information obtained by the edge node, wherein the initial scheme comprises at least one spectrum range; The control node is used for acquiring the initial scheme generated by the central node, dividing the frequency spectrum range according to a preset step length to obtain a plurality of candidate schemes, determining an optimal scheme among the plurality of candidate schemes based on the frequency spectrum residual rate, the communication quality index and the load balancing index of the base station, and distributing frequency spectrum to the base station according to the optimal scheme; the target device is one or more devices within the coverage area of the base station. In a fourth aspect, an embodiment of the present application provides an electronic device, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program when executed by the processor implements the steps of the method for dynamically allocati