CN105451236B

CN105451236B - Method, device and system for managing frequency spectrum

Info

Publication number: CN105451236B
Application number: CN201410479990.1A
Authority: CN
Inventors: 杨宇
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2014-09-18
Filing date: 2014-09-18
Publication date: 2020-02-07
Anticipated expiration: 2034-09-18
Also published as: CN105451236A

Abstract

The invention relates to the field of wireless communication technology, in particular to a method, equipment and a system for managing a frequency spectrum, which are used for solving the problem that the utilization rate of frequency spectrum resources is greatly reduced by a static frequency spectrum allocation strategy in the prior art. The method comprises the steps that network side equipment receives base station information from a plurality of base stations, determines the size of a spectrum selection window according to the required working bandwidth in the base station information of one base station, and distributes available spectrum for the base station through the spectrum selection window in the total spectrum range. Because the network side equipment dynamically allocates the frequency spectrum for the plurality of base stations in the total frequency spectrum range through the frequency spectrum selection window, the base stations can obtain the frequency spectrum meeting the information transmission requirements of the base stations, and the utilization rate of frequency spectrum resources is greatly improved.

Description

Method, device and system for managing frequency spectrum

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to a method, a device, and a system for spectrum management.

Background

The 5G (the 5Generation mobile communication technology, fifth Generation mobile communication technology) era can bring about hundreds of times faster data transmission speed than 4G, and also provides a 1000-fold or higher traffic growth target. In order to meet the development demand of the wireless mobile communication market in 2020 and beyond, more wireless mobile communication frequency bands are required to be searched. ITU-R (radio communication sector) predicts that the mobile communication frequency demand in 2020 of China is as follows: 1490-1810 MHz, while currently allocated available frequencies are typically on the order of hundreds of MHz. Radio frequency bands suitable for IMT (International mobile telecommunications system) development have been allocated to other various wireless service systems, and it is a great challenge in the IMT industry to coordinate multiple radio service departments to allocate sufficient spectrum resources for IMT in the next few years.

In the prior art, the domestic frequency spectrum division mode is as follows: the government regulatory department sends specific spectrum exclusive license plates to IMT frequency bands among several operators, the license plates are divided for a long time, and the frequency spectrums of the operators do not overlap with each other, so that the static spectrum allocation strategy is realized.

At present, the number distribution of users of multiple operators in different regions and at different times is uneven, which causes the load of access networks of different operators to be different in time and space, and thus the demand for frequency spectrum is also different. The above static spectrum allocation strategy cannot enable the access network of the operator to dynamically adjust the occupied spectrum resources according to the change of the network load, thereby causing that the spectrum resources cannot be fully utilized or the spectrum is over-saturated.

In summary, the current static spectrum allocation strategy greatly reduces the utilization rate of spectrum resources.

Disclosure of Invention

The invention provides a method, equipment and a system for spectrum management, which are used for solving the problem that the utilization rate of spectrum resources is greatly reduced by a static spectrum allocation strategy in the prior art.

The embodiment of the invention provides a method for managing a frequency spectrum, which comprises the following steps:

the method comprises the steps that network side equipment receives base station information from a plurality of base stations;

for a base station, the network side equipment determines the size of a spectrum selection window according to the required working bandwidth in the base station information of the base station;

and the network side equipment allocates available frequency spectrum for the base station through the frequency spectrum selection window in the total frequency spectrum range.

According to the embodiment of the invention, the frequency spectrums are dynamically distributed for the plurality of base stations in the total frequency spectrum range through the frequency spectrum selection window, so that the base stations can obtain the frequency spectrums meeting the self information transmission requirements, and the utilization rate of frequency spectrum resources is greatly improved.

Preferably, for a base station, the determining, by the network side device, the size of the spectrum selection window according to the required operating bandwidth in the base station information of the base station includes:

the network side equipment determines a confidence factor according to the information of the actual use condition of the base station on the frequency spectrum in the base station information, determines a quotation factor according to the cost information of the base station on the actual bandwidth occupation condition in the base station information, and determines a fairness factor according to the historical information of the base station on frequency spectrum distribution in the base station information;

and the network side equipment determines the size of the spectrum selection window according to the working bandwidth of the base station, the confidence coefficient factor, the quotation factor and the fairness factor.

According to the embodiment of the invention, the size of the spectrum selection window is determined according to the working bandwidth, the confidence coefficient factor, the quotation factor and the fairness factor of the base station, so that the determined size of the spectrum selection window can select the spectrum which better meets the actual requirement of the base station.

Preferably, the allocating, by the network side device, an available spectrum to the base station through the spectrum selection window in a total spectrum range includes:

the network side equipment selects a plurality of sections of available frequency spectrums for the base station through the frequency spectrum selection window in the total frequency spectrum range;

the network side equipment selects one section of available frequency spectrum from multiple sections of available frequency spectrum as the available frequency spectrum of the base station according to the interference of each section of available frequency spectrum;

and determining the interference of each segment of the available frequency spectrum according to the interference of the adjacent region in the base station information of the base station.

According to the embodiment of the invention, when a plurality of sections of available frequency spectrums are selected for the base station through the frequency spectrum selection window, one section of available frequency spectrum can be easily selected from the plurality of sections of available frequency spectrums to serve as the available frequency spectrum of the base station according to the interference of each section of available frequency spectrum.

Preferably, before the network side device selects multiple segments of available spectrum for the base station through the spectrum selection window in the total spectrum range, the method further includes:

the network side equipment divides the total frequency spectrum into a plurality of frequency spectrum units according to the required working bandwidth in the base station information of the base station;

the network side equipment respectively determines the interference of each frequency spectrum unit according to the adjacent cell interference in the base station information of the base station;

the network side equipment determines the interference of each section of available frequency spectrum according to the following modes:

and the network side equipment determines the interference of each section of available spectrum according to the interference of each spectrum unit included in each section of available spectrum.

According to the embodiment of the invention, the total frequency spectrum is divided into a plurality of frequency spectrum units, and the interference of each frequency spectrum unit is determined, so that the interference of each section of available frequency spectrum is convenient to determine.

the network side equipment slides the spectrum selection window in the total spectrum range according to a set step length to obtain a plurality of sections of available spectrums, or slides the spectrum selection window in the total spectrum range according to the set step length and selects a plurality of sections of available spectrums which do not contain unselected spectrums;

and the network side equipment selects a section with the minimum interference from the multiple sections of available frequency spectrums as the available frequency spectrum of the base station according to the interference of each section of available frequency spectrum.

Because the embodiment of the invention selects the available frequency spectrum for the base station in the total frequency spectrum range without the non-selectable frequency spectrum, the availability of the selected frequency spectrum is ensured; and selecting a section with the minimum interference from the plurality of sections of available frequency spectrums as the available frequency spectrum of the base station, so that the base station can more efficiently carry out information transfer through the section with the minimum interference.

Preferably, the network side device determines the non-selectable spectrum according to the following manner:

the network side equipment determines an optional frequency spectrum according to a central frequency point and a working bandwidth of a same coverage cell in base station information of the base station and a first frequency spectrum isolation parameter, wherein the first frequency spectrum isolation parameter is determined according to interference of the same coverage cell in the base station information of the base station; and/or

And the network side equipment determines an optional frequency spectrum according to the central frequency point and the working bandwidth of the adjacent region in the base station information of the base station and a second frequency spectrum isolation parameter, wherein the second frequency spectrum isolation parameter is determined according to the interference of the adjacent region in the base station information of the base station.

Preferably, the non-selectable spectrum further comprises a guard band for avoiding interference between base stations of different operators when the base stations are not synchronized.

Preferably, for a base station, after the network side device determines the size of the spectrum selection window according to the required operating bandwidth in the base station information of the base station, the method further includes:

if the network side equipment passes through the spectrum selection window in the total spectrum range, no available spectrum is selected for the base station, the network side equipment selects one of all working bandwidths which is not greater than the required working bandwidth and does not participate in determining the working bandwidth of the spectrum selection window;

and the network side equipment determines the size of a spectrum selection window according to the selected unused working bandwidth, and returns to the step of distributing the available spectrum for the base station through the spectrum selection window in the total spectrum range.

According to the method and the device, when the network side equipment can not select the available frequency spectrum for the base station according to the required working bandwidth, one working bandwidth which does not participate in determining the frequency spectrum selection window can be selected from all the working bandwidths, and the size of the frequency spectrum selection window is determined again, so that at least one available frequency spectrum can be selected for the base station.

Preferably, the selecting, by the network side device, one of all the operating bandwidths that is not greater than the required operating bandwidth and does not participate in determining the operating bandwidth of the spectrum selection window includes:

and the network side equipment selects one working bandwidth which is not larger than the required working bandwidth from all the working bandwidths in a descending order and does not participate in determining the working bandwidth of the frequency spectrum selection window.

According to the embodiment of the invention, one working bandwidth which is not larger than the required working bandwidth is selected from all the working bandwidths from large to small to determine the size of the spectrum selection window, so that the network side equipment selects the maximum available spectrum for the base station through the spectrum selection window.

Preferably, the network side device determines all the operating bandwidths according to the following modes:

and the network side equipment determines all bandwidths corresponding to the operators of the base stations in the base station information.

Preferably, the network side device allocates an available spectrum to the base station through the spectrum selection window in a total spectrum range, further including:

and the network side equipment configures the service time of the available frequency spectrum for the base station, so that the base station releases the available frequency spectrum after the service time arrives.

The base station releases the allocated available frequency spectrum after the use time length is up, so that the released available frequency spectrum can be allocated to the base station with the need again.

the base station takes the information of the base station and the detected information of the adjacent cell as base station information;

the base station reports the base station information to network side equipment so that the network side equipment performs available frequency spectrum allocation operation according to the received base station information;

and the base station carries out information transfer operation on the available frequency spectrum allocated by the network side equipment.

Preferably, the information of the neighboring cell further includes part or all of the following information:

the method comprises the following steps of using business attribution information of the adjacent cells, position relation information of the adjacent cells, interference intensity information of the adjacent cells and working frequency point information of the adjacent cells.

Preferably, the base station reports the base station information to the network side device after part or all of the following conditions are met:

an initial network access request needs to be initiated;

a request for changing the working bandwidth needs to be initiated;

updating a neighbor relation table;

the work reaches a fixed period;

and receiving a notice of reporting the base station information to the network side equipment.

Preferably, after the base station performs the information transfer operation on the available spectrum allocated by the network side device, the method further includes:

after the use duration of the available spectrum allocated by the network side equipment reaches, the base station releases the available spectrum allocated by the network side equipment; and/or

And when the network side equipment allocates the available frequency spectrum again, the base station releases the available frequency spectrum which is allocated by the network side equipment for the last time.

According to the method and the device for allocating the available frequency spectrum, the base station releases the allocated available frequency spectrum after the use time of the available frequency spectrum is up and/or when the network side device allocates the available frequency spectrum again, so that the released available frequency spectrum can be allocated to the base station in need again.

An embodiment of the present invention provides a device for spectrum management, including:

a base station information receiving module for receiving base station information from a plurality of base stations;

the frequency spectrum selection window determining module is used for determining the size of a frequency spectrum selection window according to the required working bandwidth in the base station information of a base station aiming at the base station;

and the spectrum allocation module is used for allocating available spectrum to the base station through the spectrum selection window in the total spectrum range.

Preferably, the spectrum selection window determining module is specifically configured to:

determining a confidence factor according to the actual use condition information of the base station on the frequency spectrum in the base station information, determining a quotation factor according to the cost information of the base station on the actual bandwidth occupation condition in the base station information, and determining a fairness factor according to the historical information of the base station on frequency spectrum distribution in the base station information;

and determining the size of the spectrum selection window according to the working bandwidth of the base station, the confidence coefficient factor, the quotation factor and the fairness factor.

Preferably, the spectrum allocation module is specifically configured to:

selecting a plurality of segments of available spectrum for the base station through the spectrum selection window within a total spectrum range;

selecting one segment of available spectrum from a plurality of segments of available spectrum as the available spectrum of the base station according to the interference of each segment of available spectrum;

Preferably, the spectrum allocation module is further configured to:

dividing the total frequency spectrum into a plurality of frequency spectrum units according to the required working bandwidth in the base station information of the base station;

respectively determining the interference of each frequency spectrum unit according to the adjacent cell interference in the base station information of the base station;

determining interference for each segment of available spectrum according to:

and determining the interference of each available spectrum according to the interference of each spectrum unit included in each available spectrum.

Preferably, the spectrum allocation module is specifically configured to:

sliding the spectrum selection window according to a set step length in the total spectrum range to obtain a plurality of sections of available spectrums, or sliding the spectrum selection window according to the set step length in the total spectrum range and selecting a plurality of sections of available spectrums which do not contain unselected spectrums;

and according to the interference of each segment of available spectrum, selecting a segment with the minimum interference from the plurality of segments of available spectrum as the available spectrum of the base station.

Preferably, the non-selectable spectrum is determined according to the following:

determining an optional frequency spectrum according to a central frequency point and a working bandwidth of a same-coverage cell in base station information of the base station and a first frequency spectrum isolation parameter, wherein the first frequency spectrum isolation parameter is determined according to interference of the same-coverage cell in the base station information of the base station; and/or

And determining an unselected spectrum according to the central frequency point and the working bandwidth of the adjacent region in the base station information of the base station and a second spectrum isolation parameter, wherein the second spectrum isolation parameter is determined according to the interference of the adjacent region in the base station information of the base station.

Preferably, the spectrum selection window determining module is further configured to:

if the frequency spectrum selection window passes through the total frequency spectrum range, no available frequency spectrum is selected for the base station, one of all working bandwidths is selected to be not more than the required working bandwidth, and the working bandwidth of the frequency spectrum selection window is not determined;

and determining the size of a spectrum selection window according to the selected unused working bandwidth, and returning to the step of allocating available spectrum for the base station through the spectrum selection window in the total spectrum range.

and selecting one working bandwidth which is not larger than the required working bandwidth and does not participate in determining the working bandwidth of the spectrum selection window from the large working bandwidth to the small working bandwidth.

Preferably, the spectrum selection window determining module is further configured to determine all operating bandwidths according to the following manner:

and determining all bandwidths corresponding to the operators of the base stations in the base station information.

Preferably, the spectrum allocation module is further configured to:

and configuring the use duration of the available frequency spectrum for the base station, so that the base station releases the available frequency spectrum after the use duration is reached.

a base station information determining module for using the information of itself and the detected information of the adjacent cell as the base station information;

a base station information reporting module, configured to report the base station information to a network side device, so that the network side device performs available spectrum allocation operation according to the received base station information;

and the information transfer module is used for carrying out information transfer operation on the available frequency spectrum allocated by the network side equipment.

Preferably, the base station information reporting module is specifically configured to report the base station information to the network side device after part or all of the following conditions are met:

an initial network access request needs to be initiated;

a request for changing the working bandwidth needs to be initiated;

updating a neighbor relation table;

the work reaches a fixed period;

Preferably, the information delivery module is further configured to:

releasing the available frequency spectrum allocated by the network side equipment after the use duration of the available frequency spectrum allocated by the network side equipment is reached; and/or

And when the network side equipment allocates the available frequency spectrum again, releasing the available frequency spectrum which is allocated by the network side equipment for the last time.

The embodiment of the invention provides a system for managing frequency spectrums, which comprises:

the network side equipment is used for receiving the base station information from the plurality of base stations; aiming at a base station, determining the size of a spectrum selection window according to the required working bandwidth in the base station information of the base station; allocating available spectrum for the base station through the spectrum selection window within a total spectrum range;

a base station for using the information of itself and the information of the detected neighbor cell as base station information; reporting the base station information to network side equipment so that the network side equipment performs available frequency spectrum allocation operation according to the received base station information; and performing information transfer operation on the available frequency spectrum allocated by the network side equipment.

Because the network side equipment dynamically allocates the frequency spectrum for the plurality of base stations in the total frequency spectrum range through the frequency spectrum selection window, the base stations can obtain the frequency spectrum meeting the information transmission requirements of the base stations, and the utilization rate of frequency spectrum resources is greatly improved.

Drawings

Fig. 1a is a schematic diagram of a scenario in which base stations among multiple operators share the same spectrum resource and cover the same geographic area together according to an embodiment of the present invention;

FIG. 1b is a flowchart illustrating a second spectrum management method according to an embodiment of the present invention;

fig. 1c is a schematic diagram of a third network side device selecting four available frequency spectrums for a base station within a total frequency spectrum range according to an embodiment of the present invention;

fig. 1d is a schematic diagram of four network side devices selecting three available frequency spectrums for a base station in a total frequency spectrum range after dividing frequency spectrum units according to an embodiment of the present invention;

fig. 1e is a schematic diagram of five network side devices selecting two segments of available frequency spectrums for a base station within a total frequency spectrum range from which non-selectable frequency spectrums are removed according to an embodiment of the present invention;

fig. 1f is a schematic diagram of six network side devices selecting two segments of available frequency spectrums for a base station in a total frequency spectrum range in which non-selectable frequency spectrums are removed after frequency spectrum units are divided according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a method for managing a seven-spectrum according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating a method for eight spectrum management according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a nine-spectrum management apparatus according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a device for ten spectrum management according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a system for eleven spectrum management according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a twelve-network-side device according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a thirteenth base station according to an embodiment of the present invention.

Detailed Description

Network side equipment receives base station information from a plurality of base stations, determines the size of a spectrum selection window according to the required working bandwidth in the base station information of one base station, and distributes available spectrum for the base station through the spectrum selection window in the total spectrum range; the base station takes the information of the base station and the detected information of the adjacent cell as base station information, the base station reports the base station information to network side equipment so that the network side equipment performs available frequency spectrum allocation operation according to the received base station information, and the base station performs information transmission operation on the available frequency spectrum allocated by the network side equipment. Because the network side equipment dynamically allocates the frequency spectrum for the plurality of base stations in the total frequency spectrum range through the frequency spectrum selection window, the base stations can obtain the frequency spectrum meeting the information transmission requirements of the base stations, and the utilization rate of frequency spectrum resources is greatly improved.

In the embodiment of the present invention, for a scenario that base stations among multiple operators share the same spectrum resource and cover the same geographic area together as shown in fig. 1a, it can be known from fig. 1a that the base station of operator 1 and the base station of operator 2 have the same coverage and also have the adjacent frequency coverage, and the base stations of operator 1 and operator 2 cover the same geographic area together.

The embodiments of the present invention will be described in further detail with reference to the drawings attached hereto.

As shown in fig. 1b, the method for spectrum management according to the second embodiment of the present invention includes:

step 100, a network side device receives base station information from a plurality of base stations;

step 101, aiming at a base station, the network side equipment determines the size of a spectrum selection window according to the required working bandwidth in the base station information of the base station;

and 102, the network side equipment allocates available frequency spectrum for the base station through the frequency spectrum selection window in the total frequency spectrum range.

According to the 3rd Generation partnership project (3 GPP) protocol, the working bandwidth capability of an LTE (Long Term Evolution) system in the embodiments of the present invention includes: 20MHz, 10MHz, 5MHz, 3MHz and 1.4 MHz.

The method for determining the size of the spectrum selection window in the embodiment of the invention comprises the following steps: and the network side equipment determines the size of the frequency spectrum selection window according to the required working bandwidth of the base station.

Another preferred way to determine the size of the spectrum selection window is:

For example: the confidence factor is equal to the ratio of the actual flow of the last base station divided by the reporting load, the quotation factor is equal to the total quotation of the bandwidth demand divided by the total bandwidth demand, and the fairness factor is equal to the average value of the bandwidth actually distributed for a plurality of times in history divided by the average value of the bandwidth demand for a plurality of times in history.

The network side equipment of the embodiment of the invention passes through the spectrum selection window in the total spectrum range, and if only one section of available spectrum is selected for the base station, the network side equipment directly allocates the section of spectrum to the base station for use; if multiple segments of available frequency spectrums are selected for the base station, selecting one segment of available frequency spectrums from the multiple segments of available frequency spectrums as the available frequency spectrums of the base station according to interference of each segment of frequency spectrums, which specifically comprises:

As shown in fig. 1c, the network side device selects four available frequency spectrums, namely, available frequency spectrum 1, available frequency spectrum 2, available frequency spectrum 3 and available frequency spectrum 4, for the base station through the frequency spectrum selection window in the total frequency spectrum range, as can be seen from fig. 1b, the three frequency spectrums, namely, the previous available frequency spectrum 1, the available frequency spectrum 2 and the available frequency spectrum 3, are partially overlapped, and the available frequency spectrum 4 is not overlapped with any available frequency spectrum.

As shown in fig. 1d, the network side device divides the total frequency spectrum into 9 frequency spectrum units according to the required operating bandwidth in the base station information of the base station, the network side device selects three available frequency spectrums, namely, available frequency spectrum 1, available frequency spectrum 2, and available frequency spectrum 3, for the base station through a frequency spectrum selection window in the total frequency spectrum range, interference of the available frequency spectrum 1 is equal to the sum of interference of No. 0 frequency spectrum unit to No. 2 frequency spectrum unit, interference of the available frequency spectrum 2 is equal to the sum of interference of No. 3 frequency spectrum unit to No. 5 frequency spectrum unit, and interference of the available frequency spectrum 3 is equal to the sum of interference of No. 6 frequency spectrum unit to No. 8 frequency spectrum unit.

For example: in fig. 1d, the interference of the 0 th spectral unit is 10, the interference of the 1 st spectral unit is 2, the interference of the 2 nd spectral unit is 1, the interference of the 3rd spectral unit is 5, the interference of the 4 th spectral unit is 25, the interference of the 5 th spectral unit is 7, the interference of the 6 th spectral unit is 17, the interference of the 7 th spectral unit is 0, and the interference of the 8 th spectral unit is 9. Then the interference of available spectrum 1 is 13, the interference of available spectrum 2 is 37, and the interference of available spectrum 3 is 26.

The network side device of the embodiment of the present invention divides the total frequency spectrum into a plurality of frequency spectrum units according to the required working bandwidth in the base station information of the base station, and after the network side device determines the interference of each frequency spectrum unit according to the adjacent cell interference in the base station information of the base station, the method further includes:

and the network side equipment determines the priority of each spectrum unit according to the interference strength of each spectrum unit from small to large according to the determined interference strength of each spectrum unit, wherein the smaller the interference strength of the spectrum unit is, the higher the priority of the spectrum unit is.

For example: in fig. 1d, the interference of the 0 th spectral unit is 10, the interference of the 1 st spectral unit is 2, the interference of the 2 nd spectral unit is 1, the interference of the 3rd spectral unit is 5, the interference of the 4 th spectral unit is 25, the interference of the 5 th spectral unit is 7, the interference of the 6 th spectral unit is 17, the interference of the 7 th spectral unit is 0, and the interference of the 8 th spectral unit is 9. Then the priority of the 9 spectrum units is in the order from high to low: the spectrum unit comprises a spectrum unit No. 7, a spectrum unit No. 2, a spectrum unit No. 1, a spectrum unit No. 3, a spectrum unit No. 5, a spectrum unit No. 8, a spectrum unit No. 0, a spectrum unit No. 6 and a spectrum unit No. 4.

The spectrum selection window in the embodiment of the invention can slide in a set step length, and the total spectrum can be the total spectrum without removing the non-selectable spectrum or the total spectrum without removing the non-selectable spectrum.

As shown in fig. 1c, the network side device selects four available spectrums, i.e., available spectrum 1, available spectrum 2, available spectrum 3, and available spectrum 4, for the base station through the spectrum selection window within the total spectrum range without removing the non-selectable spectrum.

As shown in fig. 1e, the network side device selects two available spectrums, i.e. available spectrum 1 and available spectrum 2, for the base station through the spectrum selection window within the total spectrum range from which the non-selectable spectrum is removed, where the spectrums other than the available spectrum 1 and the available spectrum 2 are both non-selectable spectrums.

As shown in fig. 1d, the network side device selects three available spectrums, namely available spectrum 1, available spectrum 2 and available spectrum 3, for the base station through the spectrum selection window within the total spectrum range without removing the non-selectable spectrum.

As shown in fig. 1f, the network side device selects two available spectrums, i.e., available spectrum 1 and available spectrum 2, for the base station through the spectrum selection window within the total spectrum range from which the non-selectable spectrum is removed, where the spectrums other than the available spectrum 1 and the available spectrum 2 are both non-selectable spectrums.

In the embodiment of the present invention, the first spectrum isolation parameter and the second spectrum isolation parameter may be determined according to ACIR (Adjacent Channel Interference Ratio) of coexistence mutual Interference analysis between systems, that is, when Interference reaches a strength level of the same coverage, the spectrum isolation parameter takes a maximum setting value; when the interference reaches the strength level of the adjacent cell, the frequency spectrum isolation parameter takes a second set value; when the interference is only at the intensity level of the distant cell, the spectral isolation parameter takes a minimum setting, which may even be 0.

The non-selectable frequency spectrum of the base station in the embodiment of the invention is (same coverage cell or adjacent cell center frequency point) +/-working bandwidth +/-frequency spectrum isolation parameters.

For example: when the cells of the base stations are covered simultaneously, the geographic position distance between the base stations is 0 kilometer, the first spectrum isolation parameter is n1Hz, the bandwidth of the base station covered simultaneously is B1Hz, and the central frequency point is f1Hz, so that the unavailable spectrum is in the spectrum range of f1-B1/2-n1 to f1+ B1/2+ n 1.

Another example is: when the adjacent frequency among the cells of the base stations covers, the geographic position distance between the base stations is larger than 0 kilometer, at this time, the first spectrum isolation parameter is n2Hz, the bandwidth of the adjacent frequency covered base station is B2Hz, and the central frequency point is f2Hz, so that the unavailable spectrum is in the spectrum range from f2-B2/2-n2 to f2+ B2/2+ n 2.

After the network side device determines the size of the spectrum selection window according to the required working bandwidth in the base station information of the base station, no available spectrum is selected for the base station, and a preferred processing mode is as follows:

The method and the device for determining the working bandwidth of the spectrum selection window do not participate in determining that the working bandwidth of the spectrum selection window is marked as the used working bandwidth after being selected by the network side device for determining the size of the spectrum selection window, and if the network side device cannot select the available spectrum for the base station at the moment, the network side device selects the working bandwidth again, and the working bandwidth marked as the used working bandwidth is not selected to be used by the network side device at the moment.

For example: if the required working bandwidth reported by the base station is 20MHz, all the working bandwidths of the base station are as follows: the method comprises the steps that 20MHz, 10MHz, 5MHz, 3MHz and 1.4MHz are adopted, at the moment, network side equipment determines the size of a spectrum selection window according to the required working bandwidth of 20MHz, the network side equipment passes through the spectrum selection window in the total spectrum range, and selects a section of available spectrum for a base station through the spectrum selection window in the total spectrum range after the network side equipment determines the size of the spectrum selection window according to the suboptimal bandwidth of 5 MHz.

For example: the required working bandwidth reported by the base station is 10MHz, and all the working bandwidths of the base station are as follows: the method comprises the steps that 10MHz, 5MHz, 3MHz and 1.4MHz, at the moment, network side equipment determines the size of a spectrum selection window according to the required working bandwidth of 10MHz, the network side equipment firstly selects the 5MHz sub-optimal bandwidth to determine the size of the spectrum selection window according to the sequence from large to small after passing through the spectrum selection window in the total spectrum range and not selecting the available spectrum for a base station, at the moment, the network side equipment still does not select the available spectrum for the base station, the network side equipment selects the 3MHz sub-optimal bandwidth to determine the size of the spectrum selection window, and at the moment, three sections of available spectrums are selected for the base station.

The network side device of the embodiment of the invention can be: a spectrum advanced management node, an OAM (operation administration and Maintenance) device, a new network side device, and the like.

As shown in fig. 2, a method for managing a seven-spectrum according to an embodiment of the present invention includes:

step 200, the base station takes the information of the base station and the detected information of the adjacent cell as the base station information;

step 201, the base station reports the base station information to a network side device, so that the network side device performs available spectrum allocation operation according to the received base station information;

step 202, the base station performs information transfer operation on the available spectrum allocated by the network side device.

The embodiment of the invention can acquire the operator attribution information of the adjacent cell by one or more methods as follows: the base station acquires the operator attribution information of the adjacent cell by detecting a newly added special signaling which is sent by the adjacent cell base station on the control channel and contains identity information; the base station acquires the operator attribution information of the adjacent cell by detecting the logic channel information which is newly added with the identity information in the physical channel of the adjacent cell base station; the base station acquires the operator attribution information of the adjacent cell by detecting a channel used for sending signaling by the adjacent cell base station, wherein the channel is obtained by carrying out weighting, interweaving and other processing on a sequence containing identity information.

For example: the base station receives the broadcast message, and acquires a Public Land Mobile Network (PLMN) from the broadcast message, so as to identify the operator attribution information of the neighbor base station.

Another example is: the base station obtains the operator attribution information of the neighboring base station by detecting the PCI (Physical Cell ID) of the neighboring base station, wherein the available set of the PCI among the operators is not repeated, and the PCI allocation mode among the operators and the PCI of each base station are stored in advance in the spectrum management device.

an initial network access request needs to be initiated;

a request for changing the working bandwidth needs to be initiated;

updating a neighbor relation table;

the work reaches a fixed period;

As shown in fig. 3, the method for eight spectrum management according to the embodiment of the present invention includes:

and step 300, the base station takes the information of the base station and the information of the detected adjacent cell as base station information.

Step 301, when the base station meets the condition of reporting the base station information, reporting the base station information to the network side equipment.

Step 302, the network side device receives base station information from a plurality of base stations.

Step 303, the network device determines the non-selectable spectrum in the total spectrum according to the spectrum isolation parameters of the same coverage and/or the neighboring cells.

Step 304, the network side device divides the total frequency spectrum into a plurality of frequency spectrum units according to the required working bandwidth in the base station information.

Step 305, the network side device determines the size of the spectrum selection window according to the required working bandwidth in the base station information of the base station.

Step 306, the network side device selects an available spectrum for the base station through the spectrum selection window within the total spectrum range without the non-selectable spectrum.

Step 307, judging whether the network side equipment selects an available frequency spectrum for the base station according to the frequency spectrum selection window, if so, executing step 308; if not, go to step 311.

Step 308, determining whether the network side device selects multiple segments of available frequency spectrums for the base station, if yes, executing step 309; if not, the network side equipment allocates the available frequency spectrum to the base station.

Step 309, the network side device selects a segment with the minimum interference from the multiple segments of available spectrum as the available spectrum of the base station according to the interference of each segment of available spectrum, wherein the network side device determines the interference of each segment of available spectrum according to the interference of each spectrum unit included in each segment of available spectrum.

Step 310, when the usage duration of the available spectrum allocated by the network side equipment reaches, the base station releases the available spectrum allocated by the network side equipment; and/or when the network side equipment allocates the available frequency spectrum again, the base station releases the available frequency spectrum which is allocated by the network side equipment last time.

Step 311, the network side device selects one of all the working bandwidths that is not greater than the required working bandwidth and does not participate in determining the working bandwidth of the spectrum selection window.

Step 312, the network side device determines the size of the spectrum selection window according to the selected unused working bandwidth, and executes step 306.

It should be noted that, in the implementation, there is no necessary timing relationship among step 303, step 304, and step 305, and the above is only an example, and the timing relationship among step 303, step 304, and step 305 may be adjusted as needed.

Based on the same inventive concept, embodiments of the present invention further provide a device and a system for spectrum management, and since the method corresponding to the device for spectrum management in fig. 4 and 5 is the method for spectrum management in the embodiments of the present invention, and the method corresponding to the system for spectrum management in fig. 6 is the method for spectrum management in the embodiments of the present invention, the device and the system in the embodiments of the present invention may be implemented by referring to the system, and repeated parts are not described again.

As shown in fig. 4, the nine-spectrum management apparatus according to the embodiment of the present invention includes:

a base station information receiving module 400, configured to receive base station information from a plurality of base stations;

a spectrum selection window determining module 401, configured to determine, for a base station, a size of a spectrum selection window according to a required operating bandwidth in base station information of the base station;

a spectrum allocation module 402, configured to allocate an available spectrum for the base station through the spectrum selection window in a total spectrum range.

Preferably, the spectrum selection window determining module 401 is specifically configured to:

Preferably, the spectrum allocation module 402 is specifically configured to:

Preferably, the spectrum allocation module 402 is further configured to:

determining interference for each segment of available spectrum according to:

Preferably, the spectrum allocation module 402 is specifically configured to:

Preferably, the spectrum selection window determining module 401 is further configured to:

Preferably, the spectrum selection window determining module 401 is further configured to determine all operating bandwidths according to the following manners:

Preferably, the spectrum allocation module 402 is further configured to:

As shown in fig. 5, the apparatus for ten spectrum management according to the embodiment of the present invention includes:

a base station information determining module 500, configured to use information of itself and information of the detected neighboring cell as base station information;

a base station information reporting module 501, configured to report the base station information to a network side device, so that the network side device performs available spectrum allocation operation according to the received base station information;

an information transfer module 502, configured to perform an information transfer operation on the available spectrum allocated by the network-side device.

Preferably, the base station information reporting module 501 is specifically configured to report the base station information to the network side device after part or all of the following conditions are met:

an initial network access request needs to be initiated;

a request for changing the working bandwidth needs to be initiated;

updating a neighbor relation table;

the work reaches a fixed period;

Preferably, the information delivery module 502 is further configured to:

As shown in fig. 6, the system for eleven spectrum management according to the embodiment of the present invention includes:

a network side device 600, configured to receive base station information from a plurality of base stations; aiming at a base station, determining the size of a spectrum selection window according to the required working bandwidth in the base station information of the base station; allocating available spectrum for the base station through the spectrum selection window within a total spectrum range;

a base station 601 configured to use information of itself and information of the detected neighboring cell as base station information; reporting the base station information to network side equipment so that the network side equipment performs available frequency spectrum allocation operation according to the received base station information; and performing information transfer operation on the available frequency spectrum allocated by the network side equipment.

As shown in fig. 7, a twelve network-side device according to an embodiment of the present invention includes:

a processor 704 for reading the program in the memory 705, and executing the following processes:

by controlling the transceiver 701 to receive base station information from a plurality of base stations; aiming at a base station, determining the size of a spectrum selection window according to the required working bandwidth in the base station information of the base station; and allocating available frequency spectrum for the base station through the frequency spectrum selection window in the total frequency spectrum range.

A transceiver 701 for receiving and transmitting data under the control of the processor 704.

Preferably, the processor 704 is further configured to:

determining a confidence factor according to the actual use condition information of the base station on the frequency spectrum in the base station information, determining a quotation factor according to the cost information of the base station on the actual bandwidth occupation condition in the base station information, and determining a fairness factor according to the historical information of the base station on frequency spectrum distribution in the base station information; and determining the size of the spectrum selection window according to the working bandwidth of the base station, the confidence coefficient factor, the quotation factor and the fairness factor.

Preferably, the processor 704 is further configured to:

dividing a total frequency spectrum into a plurality of frequency spectrum units according to a required working bandwidth in base station information of a base station before selecting a plurality of sections of available frequency spectrums for the base station through the frequency spectrum selection window in the total frequency spectrum range; respectively determining the interference of each frequency spectrum unit according to the adjacent cell interference in the base station information of the base station; determining interference for each segment of available spectrum according to: and determining the interference of each available spectrum according to the interference of each spectrum unit included in each available spectrum.

Preferably, the processor 704 is further configured to:

sliding the spectrum selection window according to a set step length in the total spectrum range to obtain a plurality of sections of available spectrums, or sliding the spectrum selection window according to the set step length in the total spectrum range and selecting a plurality of sections of available spectrums which do not contain unselected spectrums; and according to the interference of each segment of available spectrum, selecting a segment with the minimum interference from the plurality of segments of available spectrum as the available spectrum of the base station.

Preferably, the processor 704 is further configured to:

the non-selectable spectrum is determined according to the following: determining an optional frequency spectrum according to a central frequency point and a working bandwidth of a same-coverage cell in base station information of the base station and a first frequency spectrum isolation parameter, wherein the first frequency spectrum isolation parameter is determined according to interference of the same-coverage cell in the base station information of the base station; and/or determining an optional frequency spectrum according to a center frequency point and a working bandwidth of an adjacent region in the base station information of the base station and a second frequency spectrum isolation parameter, wherein the second frequency spectrum isolation parameter is determined according to interference of the adjacent region in the base station information of the base station.

Preferably, the processor 704 is further configured to:

the non-selectable spectrum further includes a guard band for avoiding interference between base stations of different operators when the base stations are not synchronized

Preferably, the processor 704 is further configured to:

if the frequency spectrum selection window passes through the total frequency spectrum range, no available frequency spectrum is selected for the base station, one of all working bandwidths is selected to be not more than the required working bandwidth, and the working bandwidth of the frequency spectrum selection window is not determined; and determining the size of a spectrum selection window according to the selected unused working bandwidth, and returning to the step of allocating available spectrum for the base station through the spectrum selection window in the total spectrum range.

Preferably, the processor 704 is further configured to:

all operating bandwidths are determined according to the following manner: and determining all bandwidths corresponding to the operators of the base stations in the base station information.

Preferably, the processor 704 is further configured to:

In fig. 7, a bus architecture (represented by bus 700), bus 700 may include any number of interconnected buses and bridges, bus 700 linking together various circuits including one or more processors, represented by processor 704, and memory, represented by memory 705. The bus 700 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 703 provides an interface between the bus 700 and the transceiver 701. The transceiver 701 may be one element or may be multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. Data processed by processor 704 is transmitted over a wireless medium via antenna 702, and further, antenna 702 receives data and transmits data to processor 704.

Processor 704 is responsible for managing bus 700 and general processing, and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And memory 705 may be used for storing data used by processor 704 in performing operations.

Alternatively, the processor 704 may be a CPU (central processing unit), an ASIC (Application specific integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device).

As shown in fig. 8, a thirteenth base station according to an embodiment of the present invention includes:

the processor 801 is used for reading the program in the memory 804 and executing the following processes:

taking the information of the base station and the detected information of the adjacent cell as base station information; reporting the base station information to a network side device through a transceiver 802, so that the network side device performs available spectrum allocation operation according to the received base station information; performing information transfer operation on the available frequency spectrum allocated by the network side equipment;

a transceiver 802 for receiving and transmitting data under the control of the processor 801.

Preferably, the processor 801 is further configured to:

the information of the neighbor cell further includes part or all of the following information: the method comprises the following steps of using business attribution information of the adjacent cells, position relation information of the adjacent cells, interference intensity information of the adjacent cells and working frequency point information of the adjacent cells.

Preferably, the processor 801 is further configured to:

reporting the base station information to network side equipment after part or all of the following conditions are met: an initial network access request needs to be initiated; a request for changing the working bandwidth needs to be initiated; updating a neighbor relation table; the work reaches a fixed period; and receiving a notice of reporting the base station information to the network side equipment.

Preferably, the processor 801 is further configured to:

after information transfer operation is carried out on the available frequency spectrum allocated by the network side equipment, and after the use duration of the available frequency spectrum allocated by the network side equipment reaches, the available frequency spectrum allocated by the network side equipment is released; and/or when the network side equipment allocates the available spectrum again, releasing the available spectrum which is allocated by the network side equipment for the last time.

In FIG. 8, a bus architecture (represented by bus 800), bus 800 may include any number of interconnected buses and bridges, bus 800 linking together various circuits including one or more processors, represented by general purpose processor 801, and memory, represented by memory 804. The bus 800 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 803 provides an interface between the bus 800 and the transceiver 802. The transceiver 802 may be one element or may be multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. For example: the transceiver 802 receives external data from other devices. The transceiver 802 is used to transmit data processed by the processor 801 to other devices. Depending on the nature of the computing system, a user interface 805 may also be provided, such as a keypad, display, speaker, microphone, joystick.

The processor 801 is responsible for managing the bus 800 and general processing, such as running a general-purpose operating system as described above. And memory 804 may be used to store data used by processor 801 in performing operations.

Alternatively, the processor 801 may be a CPU, ASIC, FPGA or CPLD.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A method of spectrum management, the method comprising:

for a base station, the network side equipment determines a confidence factor according to the information of the actual use condition of the base station on the frequency spectrum in the base station information, determines a quotation factor according to the cost information of the actual bandwidth occupation condition of the base station in the base station information, and determines a fairness factor according to the historical information of the base station on frequency spectrum allocation in the base station information;

the network side equipment determines the size of a spectrum selection window according to the working bandwidth of the base station, the confidence coefficient factor, the quotation factor and the fairness factor;

2. The method of claim 1, wherein the network-side device allocates available spectrum for the base station through the spectrum selection window in a total spectrum range, comprising:

3. The method of claim 2, wherein before the network-side device selects the plurality of segments of available spectrum for the base station through the spectrum selection window within a total spectrum range, the method further comprises:

4. The method of claim 2 or 3, wherein the network-side device allocates available spectrum for the base station through the spectrum selection window in a total spectrum range, and the method comprises:

5. The method of claim 4, wherein the network side device determines the non-selectable spectrum according to:

6. The method of claim 5, wherein the non-selectable spectrum further comprises a guard band for avoiding interference between base stations of different operators when the base stations are not synchronized.

7. The method of claim 3, wherein for a base station, after the network-side device determines the size of the spectrum selection window according to the operating bandwidth of the base station, the confidence factor, the offer factor, and the fairness factor, the method further comprises:

if the network side equipment passes through the spectrum selection window in the total spectrum range, no available spectrum is selected for the base station, and the network side equipment selects one of all working bandwidths not greater than the working bandwidth and does not participate in determining the working bandwidth of the spectrum selection window;

8. The method of claim 7, wherein the network-side device selecting one of all operating bandwidths that is not greater than the operating bandwidth and does not participate in determining the operating bandwidth of the spectrum selection window comprises:

9. The method of claim 7, wherein the network-side device determines all operating bandwidths according to:

10. The method according to any one of claims 1 to 3, wherein the network side device allocates available spectrum for the base station through the spectrum selection window in a total spectrum range, further comprising:

11. A method of spectrum management, the method comprising:

the base station reports the base station information to network side equipment, so that the network side equipment determines a confidence factor, a quotation factor and a fairness factor according to the received base station information, and then determines the size of a spectrum selection window and performs available spectrum allocation operation according to the working bandwidth of the base station, the confidence factor, the quotation factor and the fairness factor;

12. The method of claim 11, wherein the information of the neighbor cell further comprises some or all of the following information:

13. The method of claim 11, wherein the base station reports the base station information to a network side device after some or all of the following conditions are met:

an initial network access request needs to be initiated;

a request for changing the working bandwidth needs to be initiated;

updating a neighbor relation table;

the work reaches a fixed period;

14. The method of claim 11, wherein after the base station performs the information transfer operation on the available spectrum allocated by the network-side device, the method further comprises:

15. An apparatus for spectrum management, the apparatus comprising:

the frequency spectrum selection window determining module is used for determining a confidence factor according to the actual use condition information of the frequency spectrum of the base station in the base station information, determining a quotation factor according to the cost information of the actual bandwidth occupation condition of the base station in the base station information, and determining a fairness factor according to the historical information of the frequency spectrum distribution of the base station in the base station information; determining the size of a spectrum selection window according to the working bandwidth of the base station, the confidence coefficient factor, the quotation factor and the fairness factor;

16. The device of claim 15, wherein the spectrum allocation module is specifically configured to:

17. The apparatus of claim 16, wherein the spectrum allocation module is further configured to:

dividing the total frequency spectrum into a plurality of frequency spectrum units according to the required working bandwidth in the base station information of the base station; respectively determining the interference of each frequency spectrum unit according to the adjacent cell interference in the base station information of the base station; determining interference for each segment of available spectrum according to: and determining the interference of each available spectrum according to the interference of each spectrum unit included in each available spectrum.

18. The device according to claim 16 or 17, wherein the spectrum allocation module is specifically configured to:

19. The apparatus of claim 18, wherein the non-selectable spectrum is determined according to:

20. The apparatus of claim 19, wherein the non-selectable spectrum further comprises a guard band for avoiding interference between base stations of different operators when the base stations are not synchronized.

21. The apparatus of claim 17, wherein the spectrum selection window determination module is further configured to:

selecting one of all working bandwidths which is not larger than the working bandwidth and does not participate in determining the working bandwidth of the spectrum selection window by the spectrum selection window without selecting available spectrum for the base station in the total spectrum range; and determining the size of a spectrum selection window according to the selected unused working bandwidth, and returning to the step of allocating available spectrum for the base station through the spectrum selection window in the total spectrum range.

22. The apparatus of claim 21, wherein the spectrum selection window determination module is further configured to:

23. The device of claim 21, wherein the spectrum selection window determination module is further configured to determine all operating bandwidths based on:

24. The apparatus of any of claims 15 to 17, wherein the spectrum allocation module is further configured to:

25. An apparatus for spectrum management, the apparatus comprising:

a base station information reporting module, configured to report the base station information to a network side device, so that the network side device determines a confidence factor, a quotation factor, and a fairness factor according to the received base station information, and then determines a size of a spectrum selection window according to a working bandwidth of the base station, the confidence factor, the quotation factor, and the fairness factor, and performs an available spectrum allocation operation;

26. The apparatus of claim 25, wherein the information of the neighbor cell further comprises some or all of the following information:

27. The device of claim 25, wherein the base station information reporting module is specifically configured to report the base station information to a network side device after some or all of the following conditions are met:

an initial network access request needs to be initiated;

a request for changing the working bandwidth needs to be initiated;

updating a neighbor relation table;

the work reaches a fixed period;

28. The device of claim 25, wherein the information transfer module is further configured to:

29. A system for spectrum management, the system comprising:

the network side equipment is used for receiving the base station information from the plurality of base stations; for a base station, determining a confidence factor according to the information of the actual use condition of the base station on the frequency spectrum in the base station information, determining a quotation factor according to the cost information of the base station on the actual bandwidth occupation condition in the base station information, and determining a fairness factor according to the historical information of the base station on frequency spectrum distribution in the base station information; determining the size of a spectrum selection window according to the working bandwidth of the base station, the confidence coefficient factor, the quotation factor and the fairness factor; allocating available spectrum for the base station through the spectrum selection window within a total spectrum range;

a base station for using the information of itself and the information of the detected neighbor cell as base station information; the base station information is reported to a network side device, so that the network side device determines a confidence factor, a quotation factor and a fairness factor according to the received base station information, and then determines the size of a spectrum selection window and performs available spectrum allocation operation according to the working bandwidth of the base station, the confidence factor, the quotation factor and the fairness factor; and performing information transfer operation on the available frequency spectrum allocated by the network side equipment.