CN111431642A - Method and device for allocating idle available frequency points under discrete spectrum - Google Patents
Method and device for allocating idle available frequency points under discrete spectrum Download PDFInfo
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- CN111431642A CN111431642A CN201910022218.XA CN201910022218A CN111431642A CN 111431642 A CN111431642 A CN 111431642A CN 201910022218 A CN201910022218 A CN 201910022218A CN 111431642 A CN111431642 A CN 111431642A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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Abstract
The embodiment of the invention provides a method and a device for allocating idle available frequency points under a discrete spectrum. The method comprises the following steps: acquiring an idle available frequency point queue of each cell; selecting a first frequency point in an idle available frequency point queue of a first cell, polling whether the frequency point exists in a queue of each adjacent cell, if so, deleting the frequency point information in the queue of the adjacent cell until the frequency point does not exist in the queues of all the adjacent cells, and selecting the first frequency point in the queue of the next adjacent cell to continue polling; after the first frequency point in the idle available frequency point queues of all the cells is detected, starting to poll and detect the next frequency point in the queues of each cell; polling and detecting the idle available frequency point queues of all cells to obtain a conflict-free queue of the preferred frequency point of each cell; and selecting an available frequency point for spreading according to the conflict-free queue of the preferred frequency point of each cell. The embodiment of the invention can reasonably allocate the idle resources and avoid the possible conflict generated when the adjacent cells spread spectrum.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a method and a device for allocating idle available frequency points under a discrete spectrum.
Background
With the continuous and deep integration of industrialization and informatization in China, the radio technology and application further permeate into various industry fields, and the contradiction between supply and demand of radio frequency spectrum is increasingly prominent. The low frequency band below 1GHz is a gold frequency band, which has good coverage capability, but is limited by early technology, most frequency spectrums are distributed in a narrow band form, a large number of discrete frequency bands are idle (the comprehensive utilization rate is less than one thousandth), and the utilization efficiency of frequency resources needs to be improved. At present, a fixed spectrum allocation policy is adopted in China, and recovery and reuse of allocated frequencies are a very complicated process, so that not only is a long time needed, but also economic compensation is often needed.
At present, in order to fully utilize idle frequency points and improve the utilization rate of frequency spectrum, frequency sweeping is generally performed under the condition of existing network work, and the frequency spectrum is measured, so that the idle frequency points can be obtained.
However, when the network construction is completed, the existing equipment is working, and the frequency scanner cannot distinguish which is external interference and which is the frequency used by the system, so that the use condition of the frequency spectrum cannot be accurately known when the system expands the frequency points, and the available frequency points cannot be selected.
Disclosure of Invention
Aiming at the problems in the prior art, the embodiment of the invention provides a method and a device for allocating idle available frequency points under a discrete spectrum.
In a first aspect, an embodiment of the present invention provides a method for allocating idle available frequency points in a discrete spectrum, where the method includes:
acquiring an idle available frequency point queue of each cell, wherein the idle available frequency point queues are sequentially ordered from high to low according to priorities;
selecting a first frequency point in an idle available frequency point queue of a first cell, polling the idle available frequency point queue of each adjacent cell, detecting whether the frequency point exists in the queue, if so, deleting the frequency point information in the idle available frequency point queue of the adjacent cell until the frequency point does not exist in the idle available frequency point queues of all the adjacent cells, and selecting the first frequency point in the idle available frequency point queue of the next adjacent cell for continuous polling;
after the first frequency point in the idle available frequency point queues of all the cells is detected, starting polling to detect the next frequency point in the idle available frequency point queues of each cell;
polling and detecting the idle available frequency point queues of all cells to obtain a conflict-free queue of the preferred frequency point of each cell;
and selecting an available frequency point for spreading according to the conflict-free queue of the preferred frequency point of each cell.
In a second aspect, an embodiment of the present invention provides an apparatus for allocating an available idle frequency point in a discrete spectrum, where the apparatus includes:
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring an idle available frequency point queue of each cell, and the idle available frequency point queues are sequentially ordered from high to low according to priority;
the first detection unit is used for selecting a first frequency point in the idle available frequency point queue of the first cell, polling the idle available frequency point queue of each adjacent cell, detecting whether the frequency point exists in the queue, deleting the frequency point information in the idle available frequency point queue of the adjacent cell if the frequency point exists in the queue, and selecting the first frequency point in the idle available frequency point queue of the next adjacent cell to continuously poll until the frequency point does not exist in the idle available frequency point queues of all the adjacent cells;
the second detection unit is used for starting polling and detecting the next frequency point in the idle available frequency point queue of each cell after the first frequency point in the idle available frequency point queue of all cells is detected;
the third detection unit is used for polling and detecting the idle available frequency point queues of all the cells to obtain a conflict-free queue of the preferred frequency point of each cell;
and the spreading unit is used for selecting the available frequency points for spreading according to the conflict-free queue of the preferred frequency points of each cell.
In a third aspect, an embodiment of the present invention further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the method provided in the first aspect is implemented.
In a fourth aspect, the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the method provided in the first aspect.
The method and the device have the advantages that the same frequency points in the idle available frequency point queues of all the cells are detected through polling, the idle available frequency point queues of the adjacent cells are screened, the conflict-free queue of the preferred frequency point of each cell is obtained, idle resources can be reasonably distributed, and conflicts possibly generated when the adjacent cells spread spectrum are avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a method for allocating free available frequency points in a discrete spectrum according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a method for acquiring an idle available frequency point queue of each cell according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of a method for allocating free available frequency points in a discrete spectrum according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of an apparatus for allocating idle available frequency points in a discrete spectrum according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an apparatus for acquiring an idle available frequency point queue of each cell according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 shows a schematic flow chart of a method for allocating free available frequency points in a discrete spectrum according to an embodiment of the present invention.
As shown in fig. 1, the method for allocating idle available frequency points in a discrete spectrum according to the embodiment of the present invention specifically includes the following steps:
s11, acquiring an idle available frequency point queue of each cell, wherein the idle available frequency point queues are sequentially ordered from high to low according to priority;
specifically, the idle available frequency point queue of each cell is an optimal frequency point sequencing queue for obtaining a data segment ratio of the cell through measurement of a silence frame, processing and analysis of a measurement result of each cell.
S12, selecting the first frequency point in the free available frequency point queue of the first cell, polling the free available frequency point queue of each adjacent cell, detecting whether the frequency point exists in the queue, if so, deleting the frequency point information in the free available frequency point queue of the adjacent cell until the frequency point does not exist in the available frequency point queues of all the adjacent cells, and selecting the first frequency point in the free available frequency point queue of the next adjacent cell to continue polling;
specifically, a certain cell is randomly selected as a first cell, an available frequency point queue of the cell is read, first, a first optimal frequency point in the queue is selected, and whether the frequency point exists in the optimal frequency point queue of each adjacent cell is polled. If so, deleting the frequency point information in the idle available frequency point queue of the adjacent cell until the frequency point does not exist in the queues of all the adjacent cells, and selecting the first frequency point of the optimal frequency point queue of the next adjacent cell to continue polling.
S13, after the first frequency point in the idle available frequency point queue of all the cells is detected, starting polling to detect the next frequency point in the idle available frequency point queue of each cell;
s14, polling and detecting the idle available frequency point queues of all cells to obtain a conflict-free queue of the preferred frequency point of each cell;
specifically, by analogy, the preferred frequency point queues of all cells are compared, and a conflict-free queue of the preferred frequency point of each cell can be obtained.
And S15, selecting the available frequency points for spreading according to the conflict-free queue of the preferred frequency point of each cell.
The method and the device have the advantages that the same frequency points in the idle available frequency point queues of all the cells are detected through polling, the idle available frequency point queues of the adjacent cells are screened, the conflict-free queue of the preferred frequency point of each cell is obtained, idle resources can be reasonably distributed, and conflicts possibly generated when the adjacent cells spread spectrum are avoided.
Optionally, the embodiment of the invention is used for 223-235MHz frequency range used by services such as telemetry, remote control, data transmission and the like.
On the basis of the above embodiment, the method further includes: and acquiring the idle available frequency point queue of each cell.
Fig. 2 is a schematic flowchart illustrating a method for acquiring an idle available frequency point queue of each cell according to an embodiment of the present invention.
As shown in fig. 2, the method specifically includes the following steps:
s21, measuring the power of uplink resources of all frequency points in the silent frame to obtain the background noise and interference power of the data of each frequency point in the silent frame, wherein the silent frame is periodically sent, the system only sends downlink data in the silent frame, and the uplink does not send a wireless frame of any data;
specifically, in the embodiment of the invention, a silence frame is designed in the link time-frequency resource and is sent every N wireless frames. In the silence frame, only downlink data is transmitted, and uplink data is not transmitted.
Since the frequency scanner cannot distinguish which are external interferences and which are frequencies in use by the system. The embodiment of the invention adopts the base station side to measure the power of the uplink resources of all frequency points in the frequency spectrum range in the silent frame. Because the system is closed to work in the silent frame, the measured signal is the bottom noise of the idle frequency point or the interference noise of other systems.
The embodiment of the invention aims at the condition that a large number of discrete frequency bands are idle at present, and senses the background noise and interference conditions of idle frequency points through power measurement of silent frames.
S22, calculating the average value of the background noise and the interference power of the data of each frequency point in the silent frame to obtain the noise distribution diagram of each frequency point;
specifically, according to the sensing result, the noise distribution condition of the frequency spectrum is obtained by calculating the background noise and the interference power of each frequency point and averaging.
The noise distribution diagram of each frequency point provided by the embodiment of the invention can accurately know the use condition of the frequency spectrum.
S23, segmenting the power data of each frequency point, and calculating the ratio of each data segment of each frequency point;
and S24, sequencing the frequency points according to the proportion of the required data segment to obtain an idle available frequency point queue.
The embodiment of the invention calculates the fractional data proportion, carries out priority sequencing on the frequency points according to the proportion of the required data segment, and can select the optimal frequency point for use according to the sequencing condition when the frequency points are expanded.
Specifically, the frequency point with low power distribution is an idle frequency point, and the power data segment required when the frequency point is selected is usually low.
According to the embodiment of the invention, the base station measures the background noise and the interference power of the idle frequency points in the silent frame to obtain the power distribution condition of each frequency point, the fractional data proportion of each frequency point is calculated, the priority sequencing is carried out on the frequency points according to the proportion of the required data segment, the optimal frequency point can be selected for use according to the sequencing condition when the frequency points are expanded, the idle frequency points can be fully utilized, and the spectrum utilization rate is improved.
On the basis of the foregoing embodiment, S23 specifically includes: and for each frequency point, calculating the proportion of the data distributed in each data segment in all the data of the frequency point.
On the basis of the foregoing embodiment, S24 specifically includes: and sequencing the frequency points according to the ratio of the required data segments from large to small, and sequentially reducing the priority to obtain an idle available frequency point queue.
Fig. 3 is a schematic flowchart illustrating a method for allocating free available frequency points in a discrete spectrum according to an embodiment of the present invention;
as shown in fig. 3, the method specifically includes the following steps:
step 1, randomly selecting a certain cell as a jth main cell, wherein initial j is 1;
step 2, reading the ordered optimal frequency point sequence (idle available frequency point queue) of the cell;
step 3, selecting the ith optimal frequency point, wherein the initial i is 1;
step 4, inquiring whether the frequency point exists in the frequency point queue of the adjacent cell; if yes, turning to the step 5, otherwise, turning to the step 6;
step 5, deleting the frequency point in the available idle queue of the adjacent cell;
step 6, judging whether the adjacent cells are searched completely; if yes, switching to step 7, otherwise, selecting the next adjacent cell to switch to step 4;
step 7, judging whether all the adjacent cells are used as main cells or not, and screening the ith frequency point; if yes, switching to step 8, otherwise, selecting the next adjacent cell as the main cell and switching to step 2;
step 8, judging whether the frequency point of the jth main cell is screened, if so, ending the screening, otherwise, returning to the jth main cell, and reading the next optimal frequency point i of the jth main cell, wherein i is i + 1;
by analogy, the preferred frequency point queues of all cells are screened, and the conflict-free queue of the preferred frequency point of each cell can be obtained.
Fig. 4 shows a schematic structural diagram of an apparatus for allocating free available frequency points in a discrete spectrum according to an embodiment of the present invention.
As shown in fig. 4, the apparatus for allocating an idle available frequency point in a discrete spectrum according to the embodiment of the present invention includes an obtaining unit 11, a first detecting unit 12, a second detecting unit 13, a third detecting unit 14, and a spreading unit 15, where:
the acquiring unit 11 is configured to acquire an idle available frequency point queue of each cell, where the idle available frequency point queues are sequentially ordered from high to low according to priority;
specifically, the idle available frequency point queue of each cell is an optimal frequency point sequencing queue for obtaining a data segment ratio of the cell through measurement of a silence frame, processing and analysis of a measurement result of each cell.
The first detecting unit 12 is configured to select a first frequency point in an idle available frequency point queue of a first cell, poll an idle available frequency point queue of each neighboring cell, detect whether the frequency point exists in the queue, delete the frequency point information in the idle available frequency point queue of the neighboring cell if the frequency point exists in the queue, until the frequency point does not exist in the idle available frequency point queues of all neighboring cells, and select a first frequency point in an idle available frequency point queue of a next neighboring cell to continue polling;
specifically, a certain cell is randomly selected as a first cell, an available frequency point queue of the cell is read, first, a first optimal frequency point in the queue is selected, and whether the frequency point exists in the optimal frequency point queue of each adjacent cell is polled. If so, deleting the frequency point information in the idle available frequency point queue of the adjacent cell until the frequency point does not exist in the queues of all the adjacent cells, and selecting the first frequency point of the optimal frequency point queue of the next adjacent cell to continue polling.
The second detecting unit 13 is configured to start polling detection of a next frequency point in the idle available frequency point queue of each cell after detection of the first frequency point in the idle available frequency point queue of all cells is completed;
the third detecting unit 14 is configured to complete polling detection of the idle available frequency point queues of all cells, and obtain a conflict-free queue of a preferred frequency point of each cell;
the spreading unit 15 is configured to select an available frequency point for spreading according to the conflict-free queue of the preferred frequency point of each cell.
The method and the device have the advantages that the same frequency points in the idle available frequency point queues of all the cells are detected through polling, the idle available frequency point queues of the adjacent cells are screened, the conflict-free queue of the preferred frequency point of each cell is obtained, idle resources can be reasonably distributed, and conflicts possibly generated when the adjacent cells spread spectrum are avoided.
Fig. 5 is a schematic structural diagram illustrating an apparatus for acquiring an idle available frequency point queue of each cell according to an embodiment of the present invention.
As shown in fig. 5, the apparatus includes:
a measuring unit 21, configured to measure power of uplink resources of all frequency points in a silence frame, to obtain a background noise and an interference power of data of each frequency point in the silence frame, where the silence frame is periodically sent, and a system only sends downlink data in the silence frame, and an uplink radio frame does not send any data;
specifically, in the embodiment of the invention, a silence frame is designed in the link time-frequency resource and is sent every N wireless frames. In the silence frame, only downlink data is transmitted, and uplink data is not transmitted.
Since the frequency scanner cannot distinguish which are external interferences and which are frequencies in use by the system. The embodiment of the invention adopts the base station side to measure the power of the uplink resources of all frequency points in the frequency spectrum range in the silent frame. Because the system is closed to work in the silent frame, the measured signal is the bottom noise of the idle frequency point or the interference noise of other systems.
The embodiment of the invention aims at the condition that a large number of discrete frequency bands are idle at present, and senses the background noise and interference conditions of idle frequency points through power measurement of silent frames.
The first calculating unit 22 is configured to calculate an average value of the background noise and the interference power of the data of each frequency point in the silence frame, so as to obtain a noise distribution map of each frequency point;
specifically, according to the sensing result, the noise distribution condition of the frequency spectrum is obtained by calculating the background noise and the interference power of each frequency point and averaging.
The noise distribution diagram of each frequency point provided by the embodiment of the invention can accurately know the use condition of the frequency spectrum.
A second calculating unit 23, configured to segment the power data of each frequency point and calculate a ratio of each data segment of each frequency point;
and the sequencing unit 24 is configured to sequence the frequency points according to the required data segment occupation ratio to obtain an idle available frequency point queue.
The embodiment of the invention calculates the fractional data proportion, carries out priority sequencing on the frequency points according to the proportion of the required data segment, and can select the optimal frequency point for use according to the sequencing condition when the frequency points are expanded.
Specifically, the frequency point with low power distribution is an idle frequency point, and the power data segment required when the frequency point is selected is usually low.
According to the embodiment of the invention, the base station measures the background noise and the interference power of the idle frequency points in the silent frame to obtain the power distribution condition of each frequency point, the fractional data proportion of each frequency point is calculated, the priority sequencing is carried out on the frequency points according to the proportion of the required data segment, the optimal frequency point can be selected for use according to the sequencing condition when the frequency points are expanded, the idle frequency points can be fully utilized, and the spectrum utilization rate is improved.
On the basis of the above embodiment, the second calculating unit 23 is configured to calculate, for each frequency point, a ratio of data distributed in each data segment to all data of the frequency point.
On the basis of the foregoing embodiment, the sorting unit 24 is configured to sort the frequency points according to the ratio of the required data segment from large to small, and sequentially reduce the priority, so as to obtain an idle available frequency point queue.
An embodiment of the present invention further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the method shown in fig. 1 is implemented.
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
As shown in fig. 6, the electronic device provided by the embodiment of the present invention includes a memory 31, a processor 32, a bus 33, and a computer program stored on the memory 31 and executable on the processor 32. The memory 31 and the processor 32 complete communication with each other through the bus 33.
The processor 32 is used for calling the program instructions in the memory 31 to implement the method of fig. 1 when executing the program.
For example, the processor implements the following method when executing the program:
acquiring an idle available frequency point queue of each cell, wherein the idle available frequency point queues are sequentially ordered from high to low according to priorities;
selecting a first frequency point in an idle available frequency point queue of a first cell, polling the idle available frequency point queue of each adjacent cell, detecting whether the frequency point exists in the queue, if so, deleting the frequency point information in the idle available frequency point queue of the adjacent cell until the frequency point does not exist in the idle available frequency point queues of all the adjacent cells, and selecting the first frequency point in the idle available frequency point queue of the next adjacent cell for continuous polling;
after the first frequency point in the idle available frequency point queues of all the cells is detected, starting polling to detect the next frequency point in the idle available frequency point queues of each cell;
polling and detecting the idle available frequency point queues of all cells to obtain a conflict-free queue of the preferred frequency point of each cell;
and selecting an available frequency point for spreading according to the conflict-free queue of the preferred frequency point of each cell.
The electronic equipment provided by the embodiment of the invention detects the same frequency point in the idle available frequency point queues of all cells through polling, screens the idle available frequency point queues of adjacent cells to obtain a conflict-free queue of the preferred frequency point of each cell, can reasonably allocate idle resources, and avoids conflicts possibly generated when the adjacent cells spread spectrum.
Embodiments of the present invention also provide a non-transitory computer readable storage medium, on which a computer program is stored, and the program, when executed by a processor, implements the steps of fig. 1.
For example, the processor implements the following method when executing the program:
acquiring an idle available frequency point queue of each cell, wherein the idle available frequency point queues are sequentially ordered from high to low according to priorities;
selecting a first frequency point in an idle available frequency point queue of a first cell, polling the idle available frequency point queue of each adjacent cell, detecting whether the frequency point exists in the queue, if so, deleting the frequency point information in the idle available frequency point queue of the adjacent cell until the frequency point does not exist in the idle available frequency point queues of all the adjacent cells, and selecting the first frequency point in the idle available frequency point queue of the next adjacent cell for continuous polling;
after the first frequency point in the idle available frequency point queues of all the cells is detected, starting polling to detect the next frequency point in the idle available frequency point queues of each cell;
polling and detecting the idle available frequency point queues of all cells to obtain a conflict-free queue of the preferred frequency point of each cell;
and selecting an available frequency point for spreading according to the conflict-free queue of the preferred frequency point of each cell.
The non-transitory computer readable storage medium provided in the embodiment of the present invention detects the same frequency point in the idle available frequency point queues of all cells by polling, and screens the idle available frequency point queues of adjacent cells to obtain a conflict-free queue of preferred frequency points of each cell, so as to reasonably allocate idle resources and avoid conflicts that may be generated when spreading the spectrum of the adjacent cells.
An embodiment of the present invention discloses a computer program product, the computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions, which when executed by a computer, enable the computer to perform the methods provided by the above-mentioned method embodiments, for example, including:
acquiring an idle available frequency point queue of each cell, wherein the idle available frequency point queues are sequentially ordered from high to low according to priorities;
selecting a first frequency point in an idle available frequency point queue of a first cell, polling the idle available frequency point queue of each adjacent cell, detecting whether the frequency point exists in the queue, if so, deleting the frequency point information in the idle available frequency point queue of the adjacent cell until the frequency point does not exist in the idle available frequency point queues of all the adjacent cells, and selecting the first frequency point in the idle available frequency point queue of the next adjacent cell for continuous polling;
after the first frequency point in the idle available frequency point queues of all the cells is detected, starting polling to detect the next frequency point in the idle available frequency point queues of each cell;
polling and detecting the idle available frequency point queues of all cells to obtain a conflict-free queue of the preferred frequency point of each cell;
and selecting an available frequency point for spreading according to the conflict-free queue of the preferred frequency point of each cell.
The functional modules in the embodiments of the present invention may be implemented by a hardware processor (hardware processor), and the embodiments of the present invention are not described again.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for allocating free available frequency points under a discrete spectrum is characterized by comprising the following steps:
acquiring an idle available frequency point queue of each cell, wherein the idle available frequency point queues are sequentially ordered from high to low according to priorities;
selecting a first frequency point in an idle available frequency point queue of a first cell, polling the idle available frequency point queue of each adjacent cell, detecting whether the frequency point exists in the queue, if so, deleting the frequency point information in the idle available frequency point queue of the adjacent cell until the frequency point does not exist in the idle available frequency point queues of all the adjacent cells, and selecting the first frequency point in the idle available frequency point queue of the next adjacent cell for continuous polling;
after the first frequency point in the idle available frequency point queues of all the cells is detected, starting polling to detect the next frequency point in the idle available frequency point queues of each cell;
polling and detecting the idle available frequency point queues of all cells to obtain a conflict-free queue of the preferred frequency point of each cell;
and selecting an available frequency point for spreading according to the conflict-free queue of the preferred frequency point of each cell.
2. The method of claim 1, further comprising:
the method comprises the following steps of obtaining an idle available frequency point queue of each cell:
measuring the power of uplink resources of all frequency points in a silent frame to obtain the background noise and interference power of data of each frequency point in the silent frame, wherein the silent frame is periodically transmitted, a system only transmits downlink data in the silent frame, and an uplink radio frame does not transmit any data;
calculating the average value of the background noise and the interference power of the data of each frequency point in the silent frame to obtain a noise distribution map of each frequency point;
segmenting the power data of each frequency point, and calculating the ratio of each data segment of each frequency point;
and sequencing the frequency points according to the required data segment ratio to obtain an idle available frequency point queue.
3. The method of claim 2, wherein the calculating the ratio of the data segments of each frequency point comprises:
and for each frequency point, calculating the proportion of the data distributed in each data segment in all the data of the frequency point.
4. The method of claim 2, wherein the step of sequencing the frequency points according to the required data segment occupation ratio to obtain an idle available frequency point queue comprises:
and sequencing the frequency points according to the ratio of the required data segments from large to small, and sequentially reducing the priority to obtain an idle available frequency point queue.
5. An apparatus for allocating free available frequency points in a discrete spectrum, the apparatus comprising:
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring an idle available frequency point queue of each cell, and the idle available frequency point queues are sequentially ordered from high to low according to priority;
the first detection unit is used for selecting a first frequency point in the idle available frequency point queue of the first cell, polling the idle available frequency point queue of each adjacent cell, detecting whether the frequency point exists in the queue, deleting the frequency point information in the idle available frequency point queue of the adjacent cell if the frequency point exists in the queue, and selecting the first frequency point in the idle available frequency point queue of the next adjacent cell to continuously poll until the frequency point does not exist in the idle available frequency point queues of all the adjacent cells;
the second detection unit is used for starting polling and detecting the next frequency point in the idle available frequency point queue of each cell after the first frequency point in the idle available frequency point queue of all cells is detected;
the third detection unit is used for polling and detecting the idle available frequency point queues of all the cells to obtain a conflict-free queue of the preferred frequency point of each cell;
and the spreading unit is used for selecting the available frequency points for spreading according to the conflict-free queue of the preferred frequency points of each cell.
6. The apparatus of claim 5, further comprising:
the system comprises a measuring unit, a receiving unit and a processing unit, wherein the measuring unit is used for measuring the power of uplink resources of all frequency points in a silent frame to obtain the background noise and interference power of data of each frequency point in the silent frame, the silent frame is periodically sent, a system only sends downlink data in the silent frame, and an uplink radio frame does not send any data;
the first calculating unit is used for calculating the average value of the background noise and the interference power of the data of each frequency point in the silent frame to obtain the noise distribution map of each frequency point;
the second calculation unit is used for segmenting the power data of each frequency point and calculating the proportion of each data segment of each frequency point;
and the sequencing unit is used for sequencing all the frequency points according to the proportion of the required data segment to obtain an idle available frequency point queue.
7. The apparatus of claim 6, wherein the second calculating unit is configured to calculate, for each frequency point, a ratio of data distributed in each data segment to all data of the frequency point.
8. The apparatus according to claim 6, wherein the sorting unit is configured to sort the frequency points according to the ratio of the required data segments from large to small, and the priority is sequentially reduced to obtain the idle available frequency point queue.
9. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of the method for allocating free available frequency points in the discrete spectrum according to any one of claims 1 to 4.
10. A non-transitory computer readable storage medium, having a computer program stored thereon, wherein the computer program, when being executed by a processor, implements the steps of the method for allocating free available frequency points in discrete spectrum according to any one of claims 1 to 4.
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