WO2016058448A1 - 频带的分配方法及装置 - Google Patents
频带的分配方法及装置 Download PDFInfo
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- WO2016058448A1 WO2016058448A1 PCT/CN2015/087953 CN2015087953W WO2016058448A1 WO 2016058448 A1 WO2016058448 A1 WO 2016058448A1 CN 2015087953 W CN2015087953 W CN 2015087953W WO 2016058448 A1 WO2016058448 A1 WO 2016058448A1
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- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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- the present invention relates to the field of communications, and in particular to a method and apparatus for allocating a frequency band.
- the bandwidth resources of the LTE system are fixed, and the bandwidth of the LTE system is a fixed value, and the maximum is 20 M. Therefore, if the same frequency networking is adopted, it is likely to waste the existing Bandwidth resources and bring about large interference. Therefore, how to make full use of bandwidth resources while solving the interference problem will be a technical problem to be solved.
- the embodiments of the present invention provide a method and an apparatus for allocating frequency bands, so as to at least solve the problem that the related technologies cannot simultaneously reduce interference and can fully utilize bandwidth resources.
- a method of allocating a frequency band is provided.
- a method for allocating a frequency band includes: determining an available bandwidth and dividing the available bandwidth into a plurality of frequency bands, wherein the multiple frequency bands do not overlap each other; acquiring adjacency relationship information and interference strength between multiple cells in the current network Information: a frequency band corresponding to the cell is allocated to each of the plurality of frequency bands according to the adjacency relationship information and the interference strength information.
- assigning a frequency band corresponding to the cell to each cell according to the adjacency relationship information and the interference strength information includes: sequentially selecting a serving cell from the plurality of cells, and allocating a frequency band corresponding to the serving cell to the serving cell; After selecting the serving cell, determining a plurality of neighboring cells adjacent to the serving cell according to the adjacency relationship information, and respectively assigning frequency bands corresponding to each neighboring cell to the plurality of neighboring cells according to the interference intensity information, until the multiple cells are Assigned to the corresponding frequency band.
- selecting the serving cell from the plurality of cells in sequence, and allocating the frequency band corresponding to the serving cell to the serving cell includes: sequentially selecting the serving cell from the plurality of cells according to a preset sequence; determining that the serving cell is not When a corresponding bandwidth is allocated for a neighboring cell of the remaining serving cell, a frequency band corresponding to the serving cell is allocated to the serving cell.
- allocating a frequency band corresponding to the serving cell to the serving cell includes one of: when the sum of the number of the serving cell and the plurality of neighboring cells adjacent to the serving cell is less than or equal to the number of the multiple frequency bands, the serving cell Allocating a frequency band different from a plurality of neighboring cells adjacent to the serving cell; when the sum of the number of the serving cell and the plurality of neighboring cells adjacent to the serving cell is greater than the number of the plurality of frequency bands, assigning to the serving cell The frequency band of the neighboring cell with the weakest interference strength to the serving cell among the plurality of neighboring cells adjacent to the serving cell.
- allocating a frequency band corresponding to each neighboring cell to the neighboring cells according to the interference strength information includes: after each selecting the serving cell, the neighboring cell is adjacent to the serving cell according to the order of the interference strength from strong to weak.
- the neighboring cells are sorted; the corresponding frequency bands are allocated to the plurality of neighboring cells after sorting one by one.
- the assigning the corresponding frequency bands to the plurality of neighboring cells after the sorting comprises: sequentially determining whether each of the sorted neighboring cells has already become a neighboring cell of another serving cell other than the serving cell or as another serving cell.
- the corresponding frequency band is allocated; if yes, the next neighboring cell is continuously determined according to the order of the interference strength from strong to weak; if not, the currently determined neighboring cell is allocated with the serving cell and is strong according to the interference strength. If the weak sequence results in a frequency band in which the neighboring cells of the frequency band have been allocated are different, or when there are no frequency bands that are not the same, the frequency band of the neighboring cell with the weakest interference strength is selected as the current in the intersection.
- a frequency band of the determined neighboring cell, wherein the intersection is a set of common neighboring cells obtained by intersecting a plurality of neighboring cells adjacent to the currently determined neighboring cell and two neighboring cells adjacent to the serving cell.
- a frequency band allocation apparatus is provided.
- the apparatus for allocating a frequency band includes: a determining module, configured to determine an available bandwidth and divide the available bandwidth into a plurality of frequency bands, wherein the plurality of frequency bands do not overlap each other; and the acquiring module is configured to acquire multiple current networks The adjacency relationship information and the interference intensity information between the cells; the allocation module is configured to allocate, for each cell, a frequency band corresponding to the cell from the plurality of frequency bands according to the adjacency relationship information and the interference strength information.
- the allocating module comprises: a first allocating unit, configured to sequentially select a serving cell from the plurality of cells, and allocate a frequency band corresponding to the serving cell to the serving cell; and the second allocating unit is configured to select the serving cell each time Then, determining, according to the adjacency relationship information, a plurality of neighboring cells adjacent to the serving cell, and respectively assigning frequency bands corresponding to each neighboring cell to the plurality of neighboring cells according to the interference intensity information, until the multiple cells are allocated corresponding frequency band.
- the first allocating unit comprises: a selecting subunit, configured to sequentially select a serving cell from the plurality of cells according to a preset order; and the first assigning subunit is configured to determine that the serving cell is not adjacent to the remaining serving cell When a cell is allocated a corresponding bandwidth, a frequency band corresponding to the serving cell is allocated to the serving cell.
- the first allocation subunit is configured to allocate, to the serving cell, a frequency band corresponding to the serving cell, including One of the following: when the sum of the number of the serving cell and the plurality of neighboring cells adjacent to the serving cell is less than or equal to the number of the plurality of frequency bands, the serving cell is allocated differently from the neighboring cells adjacent to the serving cell. a frequency band; when the sum of the number of the serving cell and the plurality of neighboring cells adjacent to the serving cell is greater than the number of the plurality of frequency bands, the serving cell is allocated interference to the serving cell in the plurality of neighboring cells adjacent to the serving cell The frequency band of the weakest neighboring cell.
- the second allocating unit comprises: a sorting subunit, configured to sort the plurality of neighboring cells adjacent to the serving cell according to the order of the interference strength from strong to weak after each selecting the serving cell; the second assigner The unit is configured to allocate corresponding frequency bands to the plurality of neighboring cells after sorting one by one.
- the second allocation subunit comprises: a determining subunit, configured to sequentially determine whether each sorted neighboring cell has been allocated as a neighboring cell of another serving cell other than the serving cell or as another serving cell Corresponding frequency band; the first processing subunit is configured to continue to determine the next neighboring cell according to the order of the interference strength from strong to weak when the output of the determining subunit is YES; the second processing subunit is set to be in the determiner
- the unit output is NO
- the currently determined neighboring cell is allocated a frequency band different from the serving cell and the neighboring cells that have been allocated the frequency band according to the order of the interference strength from strong to weak, or when there is no difference
- the frequency band of the neighboring cell with the weakest interference strength is selected as the frequency band of the currently determined neighboring cell in the intersection, wherein the intersection is a plurality of adjacent cells adjacent to the currently determined neighboring cell and A set of common neighboring cells obtained by intersecting two parts of a plurality of neighboring cells adjacent to the serving
- the available bandwidth is determined and the available bandwidth is divided into multiple frequency bands, where the multiple frequency bands do not overlap each other; the adjacency relationship information and the interference strength information between multiple cells in the current network are acquired; The information and the interference intensity information allocates a frequency band corresponding to the cell to each of the multiple frequency bands, which solves the problem that the related technologies cannot simultaneously reduce the interference and can fully utilize the bandwidth resources, thereby fully utilizing the telecommunication operators. Spectrum resources minimize interference in the system, improve network performance, and improve user experience in the network.
- FIG. 1 is a flow chart of a method for allocating frequency bands according to an embodiment of the present invention
- FIG. 2 is a flow chart of a method for allocating frequency bands in accordance with a preferred embodiment of the present invention
- FIG. 3 is a schematic diagram of interference self-optimized band allocation results in accordance with a preferred embodiment of the present invention.
- FIG. 4 is a structural block diagram of a frequency band allocating apparatus according to an embodiment of the present invention.
- Figure 5 is a block diagram showing the structure of a frequency band allocating apparatus in accordance with a preferred embodiment of the present invention.
- FIG. 1 is a flow chart of a method of allocating frequency bands in accordance with an embodiment of the present invention. As shown in FIG. 1, the method may include the following processing steps:
- Step S102 determining an available bandwidth and dividing the available bandwidth into multiple frequency bands, where the multiple frequency bands do not overlap each other;
- Step S104 Acquire adjacency relationship information and interference strength information between multiple cells in the current network.
- Step S106 Allocating a frequency band corresponding to the cell from each of the plurality of frequency bands according to the adjacency relationship information and the interference intensity information.
- the method shown in FIG. 1 is adopted to determine the available bandwidth and the frequency band division of the available bandwidth, and then consider the adjacency relationship between the cells in the current network (which can be measured by calculating or inheriting the same frequency network) and determine each Interference strength between cells, in which frequency band is set for each serving cell and neighboring cells of each serving cell (for example, a frequency band can be set for a cell according to factors such as interference conditions and environmental conditions), and the station frequency of each neighboring cell Different points, gradually configure the adjacent band until the entire network configuration is completed.
- the problem that the interference cannot be simultaneously reduced and the bandwidth resources can be fully utilized in the related technologies can be solved, and the spectrum resources of the telecommunication operator can be fully utilized, the interference in the system can be minimized, the network performance can be improved, and the users in the network can be improved.
- the spectrum resources of the telecommunication operator can be fully utilized, the interference in the system can be minimized, the network performance can be improved, and the users in the network can be improved.
- step S106 assigning a frequency band corresponding to the cell to each cell according to the adjacency relationship information and the interference strength information may include the following operations:
- Step S1 sequentially select a serving cell from multiple cells, and allocate a frequency band corresponding to the serving cell to the serving cell;
- Step S2 After selecting the serving cell, determining a plurality of neighboring cells adjacent to the serving cell according to the adjacency relationship information, and respectively assigning frequency bands corresponding to each neighboring cell to the plurality of neighboring cells according to the interference intensity information, Until a plurality of cells are allocated to corresponding frequency bands.
- each cell may be sequentially selected from the set of all cells in a preset order as a serving cell, and each serving cell is allocated a corresponding frequency band one by one. After each selection of the serving cell, the root is needed. Each neighboring cell is allocated a corresponding bandwidth according to the degree of interference of the neighboring cells adjacent to the serving cell to the serving cell.
- step S1 sequentially selecting a serving cell from the plurality of cells and allocating a frequency band corresponding to the serving cell to the serving cell may include the following steps:
- Step S11 sequentially select serving cells from a plurality of cells in a preset order
- Step S12 In a case where it is determined that the serving cell is not allocated the corresponding bandwidth as the neighboring cell of the remaining serving cell, the serving cell is allocated a frequency band corresponding to the serving cell.
- the serving cell after each selection of the serving cell, it should first be determined whether the serving cell has been allocated a frequency band as a neighboring cell adjacent to other serving cells, for example, currently, cell 1, cell 2, and cell 3 are present. The three are adjacent to each other, and it is assumed that the cell 1 is first selected as the serving cell according to a preset sequence (for example, the cell number is from small to large), then after the corresponding frequency band is allocated for the serving cell 1, The adjacent cell 2 and the neighboring cell 3 adjacent to the cell 1 are allocated respective corresponding frequency bands. If cell 2 is continuously selected as the serving cell, since cell 2 has been allocated a frequency band as a neighboring cell that has previously been used as cell 1, it is no longer necessary to allocate a corresponding frequency band to cell 2.
- a preset sequence for example, the cell number is from small to large
- cell 1 is first selected as the serving cell and the corresponding frequency band is allocated to it; secondly, the adjacent cell 3 and the neighboring cell 4 adjacent to the serving cell 1 need to be allocated corresponding frequency bands;
- the frequency band setting needs to be performed for the serving cell 2.
- allocating a frequency band corresponding to the serving cell to the serving cell may include one of the following:
- the serving cell is allocated differently from the plurality of neighboring cells adjacent to the serving cell. frequency band;
- the serving cell when the sum of the number of the serving cell and the plurality of neighboring cells adjacent to the serving cell is greater than the number of the plurality of frequency bands, the serving cell is allocated interference to the serving cell in the plurality of neighboring cells adjacent to the serving cell The frequency band of the weakest neighboring cell.
- the currently available bandwidth can be divided into four bands: band 1, band 2, band 3, and band 4, and only three cells of cell 1, cell 2, and cell 3 exist in the current network, and three The two are adjacent to each other. Therefore, when the cell 1 is selected as the serving cell, the frequency band 1 is first configured for the serving cell 1, the frequency band 2 is configured for the neighboring cell 2 of the serving cell 1, and the frequency band 3 is configured for the neighboring cell 3 of the serving cell 1. The frequency bands configured by the three cells are different from each other. Conversely, it is assumed that the currently available bandwidth can be divided into three bands: band 1, band 2, and band 3, while cells 1, cell 2, and cell exist in the current network. 3 and the four cells of the cell 4, and the four are adjacent to each other.
- the frequency band 1 may be configured for the serving cell 1 and the neighboring cell 2, and then the phase of the serving cell 1
- the neighboring cell 3 is configured with the frequency band 2 and the neighboring cell 4 of the serving cell 1 is configured with the frequency band 3, that is, the serving cell is allocated a frequency band of the neighboring cell whose interference strength is the weakest.
- allocating frequency bands corresponding to each neighboring cell to the plurality of neighboring cells according to the interference strength information may include the following operations:
- Step S21 After selecting the serving cell each time, sorting a plurality of neighboring cells adjacent to the serving cell according to the order of the interference strength from strong to weak;
- Step S22 Allocating corresponding frequency bands to the plurality of neighboring cells after sorting one by one.
- cell 1 is selected as the serving cell
- cell 2, cell 3, and cell 4 are neighbor cells of cell 1. Therefore, the interference degree of the cell 1 can be first sorted according to the cell 2, the cell 3, and the cell 4, and the corresponding frequency bands are allocated to the cell 2, the cell 3, and the cell 4 in order from the strongest to the weakest.
- allocating corresponding frequency bands to the plurality of neighboring cells after sorting one by one may include the following steps:
- Step S221 sequentially determining whether each of the sorted neighboring cells has been allocated as a neighboring cell of another serving cell other than the serving cell or as a corresponding frequency band;
- Step S222 If yes, proceed to determine the next neighboring cell according to the order of the interference strength from strong to weak;
- Step S223 If no, the currently determined neighboring cell is allocated a frequency band different from the serving cell and the neighboring cell in which the frequency band has been allocated according to the order of the interference strength from strong to weak, or when there is no existing band
- the frequency band of the neighboring cell with the weakest interference strength is selected as the frequency band of the currently determined neighboring cell in the intersection, wherein the intersection is a plurality of neighboring cells adjacent to the currently determined neighboring cell. And a set of common neighboring cells obtained by intersecting two parts of the neighboring cells adjacent to the serving cell.
- FIG. 2 is a flow chart of a method of allocating frequency bands in accordance with a preferred embodiment of the present invention. As shown in FIG. 2, the process may mainly include the following processing steps:
- Step S204 Determine the adjacency relationship and interference strength of the cells in the network. That is, the adjacency relationship and the interference strength can be estimated by parameters such as the latitude and longitude of the station, the direction angle, and the base station transmit power.
- Step S206 Serving the cell band configuration. Each cell is selected from the set of cells in a preset order as a serving cell, and then the neighboring cells of the cell are selected and arranged in the order of interference intensity from strong to weak.
- Step S208 It is determined whether an overband has been allocated for the serving cell, and if yes, go to step S212; if no, proceed to step S210.
- Step S210 If the frequency band has not been allocated to the serving cell, the serving cell is configured with a frequency band different from the neighboring cell. When the above-mentioned different frequency band is not present, the serving cell is allocated a frequency band of the neighboring area with the weakest interference strength. .
- Step S212 Adjacent cell band configuration.
- the set of neighbors in which Celli has configured the overband is IV, and the intersection of Set IV and Set II is Set III (when Set IV is empty, the intersection is Set of Neighborhoods II).
- Step S214 It is judged whether Celly has allocated the frequency band; if yes, go to step S218; if no, go to step S216.
- Step S216 Allocating a frequency band different from the serving cell and the cell in the set III for the Celli; if there is no different frequency band, the Celli is allocated its frequency band of the weakest neighboring zone in the set III.
- Step S218 If the Celli has allocated the frequency band, skip to the next neighboring cell; gradually allocate the frequency bands of all the neighboring cells in the neighboring cell set II, and determine whether the current neighboring cell is the last neighboring cell of the serving cell; if yes, continue Go to step S220; if no, go to step S212 until all neighboring band allocations are completed;
- Step S220 determining whether the current serving cell is the last cell in the current network; if yes, proceeding to step S222; if not, proceeding to step S206 until the entire network configuration is completed;
- Step S222 After the frequency point configuration of all the cells ends, update the list of the intra-frequency neighboring cells and the inter-frequency neighboring cells of the cell. Due to the change of the frequency point, it is also necessary to update the neighbor list of the LTE cell configured by the system.
- the main difference between the preferred embodiment and the foregoing preferred embodiment 1 is that the manner of determining the adjacency relationship and the interference strength of the cells in the network is different, and the process may mainly include the following processing steps:
- Step S204 Determine the adjacency relationship and the interference strength.
- the adjacency relationship can be adjacency when using the same frequency networking.
- determining the interference strength of the cell by using the following method: assuming that there are enough users of the network, and obtaining a measurement report (which may be an A3 event or an A4 event) reported before the handover in the same frequency network, and counting the reference signal receiving of the serving cell of the same target cell.
- the average value of power (RSRP) is used as the interference value of the neighboring cell to the serving cell. Then, according to the above method, the interference values of all neighboring cells to the serving cell are sequentially obtained, and the interference strengths are sorted according to the interference intensity.
- Step S206 Serving the cell band configuration. Each cell is selected from the set of cells in a preset order as a serving cell, and then the neighboring cells of the cell are selected and arranged in the order of interference intensity from strong to weak.
- Step S208 It is determined whether an overband has been allocated for the serving cell, and if yes, go to step S212; if no, proceed to step S210.
- Step S210 If the frequency band has not been allocated to the serving cell, the serving cell is configured with a frequency band different from the neighboring cell. When the above-mentioned different frequency band is not present, the serving cell is allocated a frequency band of the neighboring area with the weakest interference strength. .
- Step S212 Adjacent cell band configuration.
- the set of neighbors in which Celli has configured the overband is IV, and the intersection of Set IV and Set II is Set III (when Set IV is empty, the intersection is Set of Neighborhoods II).
- Step S214 It is judged whether Celly has allocated the frequency band; if yes, go to step S218; if no, go to step S216.
- Step S216 Allocating a band different from the serving cell and the cell in the set III for the Celli, and if the different frequency band is absent, the Celli is allocated its frequency band of the weakest neighboring zone in the set III.
- Step S218 If the Celli has allocated the frequency band, skip to the next neighboring cell; gradually allocate the frequency bands of all the neighboring cells in the neighboring cell set II, and determine whether the current neighboring cell is the last neighboring cell of the serving cell; if yes, continue Go to step S220; if no, go to step S212 until all neighboring band allocations are completed;
- Step S220 determining whether the current serving cell is the last cell under the current network; if yes, following Step S222 is continued; if no, go to step S206 until the entire network configuration is completed;
- Step S222 After the frequency point configuration of all the cells ends, update the list of the intra-frequency neighboring cells and the inter-frequency neighboring cells of the cell. Due to the change of the frequency point, it is also necessary to update the neighbor list of the LTE cell configured by the system.
- FIG. 3 is a schematic diagram of interference self-optimizing band allocation results in accordance with a preferred embodiment of the present invention.
- the LTE system is used.
- the bandwidth of the LTE system is 40 MHz.
- the specific area (for example, 19 cells in total) is severely affected by the 20M cell interference.
- 10MHz F1, F2, F3, and F4, respectively, corresponding to white area, horizontal line shadow area, vertical line shadow area, and hatched shadow area in Figure 3) bring optimal interference problems.
- the neighboring cell of the serving cell is the six cells around it, the intensity of the interference is gradually reduced in a clockwise direction.
- the interference self-optimized frequency band allocation method is as follows:
- Step 1 First, select cell 1. If cell 1 has not allocated a frequency band, then cell 1 is randomly allocated with one frequency band, for example, frequency band F1.
- Step 2 Allocate a frequency band for the neighboring cell of the cell 1. Assuming that the frequency band is allocated to the cell 4, it is necessary to select a frequency band different from the cell 1, for example, the frequency band F4. When the frequency band is allocated to the cell 5, it is also necessary to select a frequency band different from both the cell 1 and the cell 4, for example, the frequency band F2. Finally, the frequency band is allocated to the cell 2. Therefore, it is necessary to select a frequency band different from the cell 5 and the cell 1, for example, F3.
- Step 3 Select the serving cell 4, since the serving cell has already configured the frequency band, the next step is to configure the frequency band for the neighboring cell of the serving cell 4.
- Step 4 For the neighboring cell 8 of the serving cell 4, a frequency band different from the cell 4 needs to be allocated, for example, F2.
- a frequency band different from the cell 4 For the neighboring cell 9 of the serving cell 4, it is necessary to allocate a frequency band different from the cell 4, the cell 8 and the cell 5, for example: F3.
- Step 5 traverse all 19 cells according to the above steps until the entire network configuration is completed.
- the final schematic of the complete configuration is shown in Figure 3 above.
- the allocation device of the frequency band may include: a determining module 10 configured to determine an available bandwidth and divide the available bandwidth into a plurality of frequency bands, wherein the plurality of frequency bands do not overlap each other; and the obtaining module 20 is configured to acquire the current The adjacency relationship information and the interference intensity information between the plurality of cells in the network; the allocating module 30 is configured to allocate, for each cell, a frequency band corresponding to the cell from the plurality of frequency bands according to the adjacency relationship information and the interference intensity information.
- the device shown in FIG. 4 is used to solve the problem that the related art cannot simultaneously reduce the interference and can fully benefit With the problem of bandwidth resources, the spectrum resources of the telecom operators can be fully utilized to minimize the interference in the system, improve the network performance, and improve the user experience in the network.
- the allocating module 30 may include: a first allocating unit 300, configured to sequentially select a serving cell from a plurality of cells, and allocate a frequency band corresponding to the serving cell to the serving cell; 302. Set, after each selecting a serving cell, determine, according to the adjacency relationship information, multiple neighboring cells that are adjacent to the serving cell, and allocate, according to the interference strength information, a frequency band corresponding to each neighboring cell for each of the neighboring cells. Until multiple cells are allocated to the corresponding frequency band.
- the first allocating unit 300 may include: a selecting subunit (not shown), configured to sequentially select a serving cell from a plurality of cells in a preset order; a first assigning subunit (not shown) And, in a case where it is determined that the serving cell is not allocated the corresponding bandwidth as the neighboring cell of the remaining serving cell, the serving cell is allocated a frequency band corresponding to the serving cell.
- the first allocation subunit configured to allocate a frequency band corresponding to the serving cell to the serving cell, may include one of the following:
- the serving cell is allocated differently from the plurality of neighboring cells adjacent to the serving cell. frequency band;
- the serving cell when the sum of the number of the serving cell and the plurality of neighboring cells adjacent to the serving cell is greater than the number of the plurality of frequency bands, the serving cell is allocated interference to the serving cell in the plurality of neighboring cells adjacent to the serving cell The frequency band of the weakest neighboring cell.
- the second allocating unit 302 may include: a sorting subunit (not shown) configured to select, after each selection of the serving cell, a plurality of phases adjacent to the serving cell in order of strongest to weakest interference strength The neighboring cells are sorted; the second allocation subunit (not shown) is configured to allocate corresponding frequency bands to the plurality of neighboring cells after sorting one by one.
- a sorting subunit (not shown) configured to select, after each selection of the serving cell, a plurality of phases adjacent to the serving cell in order of strongest to weakest interference strength The neighboring cells are sorted; the second allocation subunit (not shown) is configured to allocate corresponding frequency bands to the plurality of neighboring cells after sorting one by one.
- the second allocation subunit may include: a determining subunit (not shown in the figure), configured to sequentially determine whether each sorted neighboring cell has already been a neighboring cell of another serving cell except the serving cell Or the corresponding frequency band is allocated as another serving cell; the first processing sub-unit (not shown) is set to continue to judge the next one according to the order of the interference strength from strong to weak when the output of the determining subunit is YES. a neighboring cell; a second processing sub-unit (not shown) is configured to allocate the serving cell to the currently determined neighboring cell and the order of the interference strength from strong to weak when the output of the determining subunit is negative.
- the frequency band of the neighboring cell with the weakest interference strength is selected as the currently determined neighboring cell in the intersection.
- a frequency band in which an intersection is a plurality of adjacent cells adjacent to a currently determined neighboring cell and a plurality of adjacent cells adjacent to the serving cell A collection of neighboring cells.
- the technical solution provided by the embodiment of the present invention can be
- the interference situation calculates the frequency band of the cell reasonably, thereby minimizing the interference in the LTE system, and at the same time improving the network performance of the system.
- modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
- the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
- the invention is not limited to any specific combination of hardware and software.
- the method and apparatus for allocating frequency bands provided by the embodiments of the present invention have the following beneficial effects: the spectrum resources of the telecommunication operators can be fully utilized, the interference in the system is minimized, the network performance is improved, and the network is improved. user experience.
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Abstract
本发明公开了一种频带的分配方法及装置，在上述方法中，确定可用带宽并将可用带宽划分为多个频带，其中，多个频带互不重叠；获取当前网络下多个小区之间的邻接关系信息和干扰强度信息；按照邻接关系信息和干扰强度信息从多个频带中分别为每个小区分配与该小区对应的频带。根据本发明提供的技术方案，可以充分利用电信运营商的频谱资源，最大程度地降低系统中的干扰，改善网络性能，提升网络中的用户体验。
Description
本发明涉及通信领域，具体而言，涉及一种频带的分配方法及装置。
随着无线宽带通信技术的发展，解决无线系统的干扰问题已经成为目前的热点研究问题。现如今主流的无线通信系统长期演进(Long Term Evolution，简称为LTE)系统通常采用同频的组网方式，其随着网络负荷的增加，相邻小区之间会产生强烈的干扰，由此易造成网络上下行的容量急剧下降，从而影响整个网络的性能，因此，采用合适的方案解决干扰问题具有非常重大的意义。
此外，对于有些电信网络运营商拥有带宽较大的频谱资源，而LTE系统的带宽则为固定值，其最大为20M，那么，如果采用同频组网的方式，则很有可能浪费现有的带宽资源且带来较大的干扰。因此，如何能够在解决干扰问题的同时又可以充分利用带宽资源将是亟待解决的技术问题。
发明内容
本发明实施例提供了一种频带的分配方法及装置，以至少解决相关技术中无法同时实现降低干扰且能够充分利用带宽资源的问题。
根据本发明实施例的一个方面，提供了一种频带的分配方法。
根据本发明实施例的频带的分配方法包括：确定可用带宽并将可用带宽划分为多个频带，其中，多个频带互不重叠；获取当前网络下多个小区之间的邻接关系信息和干扰强度信息；按照邻接关系信息和干扰强度信息从多个频带中分别为每个小区分配与该小区对应的频带。
优选地，按照邻接关系信息和干扰强度信息分别为每个小区分配与该小区对应的频带包括：从多个小区中依次选取服务小区，并为服务小区分配与该服务小区对应的频带；在每次选取服务小区后，根据邻接关系信息确定与服务小区邻接的多个相邻小区，并根据干扰强度信息分别为多个相邻小区分配与每个相邻小区对应的频带，直至多个小区均分配到对应的频带。
优选地，从多个小区中依次选取服务小区，并为服务小区分配与该服务小区对应的频带包括：按照预设顺序从多个小区中依次选取服务小区；在确定服务小区未被作
为其余服务小区的相邻小区而被分配对应的带宽的情况下，为服务小区分配与该服务小区对应的频带。
优选地，为服务小区分配与该服务小区对应的频带包括以下之一：当服务小区以及与该服务小区邻接的多个相邻小区的数量总和小于或等于多个频带的数量时，为服务小区分配与该服务小区邻接的多个相邻小区均不相同的频带；当服务小区以及与该服务小区邻接的多个相邻小区的数量总和大于多个频带的数量时，为服务小区分配与该服务小区邻接的多个相邻小区中对服务小区的干扰强度最弱的邻接小区的频带。
优选地，根据干扰强度信息分别为多个相邻小区分配与每个相邻小区对应的频带包括：在每次选取服务小区后，按照干扰强度由强到弱的顺序对与服务小区邻接的多个相邻小区进行排序；逐个为排序后的多个相邻小区分配对应的频带。
优选地，逐个为排序后的多个相邻小区分配对应的频带包括：依次判断每个排序后的相邻小区是否已经作为除服务小区之外的其他服务小区的相邻小区或者作为其他服务小区被分配过对应的频带；如果是，则按照干扰强度由强到弱的顺序结果继续判断下一个相邻小区；如果否，则为当前判断的相邻小区分配与服务小区以及按照干扰强度由强到弱的顺序结果已经分配过频带的相邻小区均不相同的频带，或者，当不存在均不相同的频带的情况下，则在交集中选取干扰强度最弱的相邻小区的频带作为当前判断的相邻小区的频带，其中，交集为与当前判断的相邻小区邻接的多个相邻小区以及与服务小区邻接的多个相邻小区两部分相交得到的公共相邻小区集合。
根据本发明实施例的另一方面，提供了一种频带的分配装置。
根据本发明实施例的频带的分配装置包括：确定模块，设置为确定可用带宽并将可用带宽划分为多个频带，其中，多个频带互不重叠；获取模块，设置为获取当前网络下多个小区之间的邻接关系信息和干扰强度信息；分配模块，设置为按照邻接关系信息和干扰强度信息从多个频带中分别为每个小区分配与该小区对应的频带。
优选地，分配模块包括：第一分配单元，设置为从多个小区中依次选取服务小区，并为服务小区分配与该服务小区对应的频带；第二分配单元，设置为在每次选取服务小区后，根据邻接关系信息确定与服务小区邻接的多个相邻小区，并根据干扰强度信息分别为多个相邻小区分配与每个相邻小区对应的频带，直至多个小区均分配到对应的频带。
优选地，第一分配单元包括：选取子单元，设置为按照预设顺序从多个小区中依次选取服务小区；第一分配子单元，设置为在确定服务小区未被作为其余服务小区的相邻小区而被分配对应的带宽的情况下，为服务小区分配与该服务小区对应的频带。
优选地，第一分配子单元，设置为为服务小区分配与该服务小区对应的频带包括
以下之一：当服务小区以及与该服务小区邻接的多个相邻小区的数量总和小于或等于多个频带的数量时，为服务小区分配与该服务小区邻接的多个相邻小区均不相同的频带；当服务小区以及与该服务小区邻接的多个相邻小区的数量总和大于多个频带的数量时，为服务小区分配与该服务小区邻接的多个相邻小区中对服务小区的干扰强度最弱的邻接小区的频带。
优选地，第二分配单元包括：排序子单元，设置为在每次选取服务小区后，按照干扰强度由强到弱的顺序对与服务小区邻接的多个相邻小区进行排序；第二分配子单元，设置为逐个为排序后的多个相邻小区分配对应的频带。
优选地，第二分配子单元包括：判断子单元，设置为依次判断每个排序后的相邻小区是否已经作为除服务小区之外的其他服务小区的相邻小区或者作为其他服务小区被分配过对应的频带；第一处理子单元，设置为在判断子单元输出为是时，按照干扰强度由强到弱的顺序结果继续判断下一个相邻小区；第二处理子单元，设置为在判断子单元输出为否时，为当前判断的相邻小区分配与服务小区以及按照干扰强度由强到弱的顺序结果已经分配过频带的相邻小区均不相同的频带，或者，当不存在均不相同的频带的情况下，则在交集中选取干扰强度最弱的相邻小区的频带作为当前判断的相邻小区的频带，其中，交集为与当前判断的相邻小区邻接的多个相邻小区以及与服务小区邻接的多个相邻小区两部分相交得到的公共相邻小区集合。
通过本发明实施例，采用确定可用带宽并将可用带宽划分为多个频带，其中，多个频带互不重叠；获取当前网络下多个小区之间的邻接关系信息和干扰强度信息；按照邻接关系信息和干扰强度信息从多个频带中分别为每个小区分配与该小区对应的频带，解决了相关技术中无法同时实现降低干扰且能够充分利用带宽资源的问题，进而可以充分利用电信运营商的频谱资源，最大程度地降低系统中的干扰，改善网络性能，提升网络中的用户体验。
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明实施例的频带的分配方法的流程图；
图2是根据本发明优选实施例的频带的分配方法的流程图；
图3是根据本发明优选实施例的干扰自优化频带分配结果的示意图；
图4是根据本发明实施例的频带的分配装置的结构框图；
图5是根据本发明优选实施例的频带的分配装置的结构框图。
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
图1是根据本发明实施例的频带的分配方法的流程图。如图1所示，该方法可以包括以下处理步骤：
步骤S102：确定可用带宽并将可用带宽划分为多个频带，其中，多个频带互不重叠；
步骤S104：获取当前网络下多个小区之间的邻接关系信息和干扰强度信息；
步骤S106：按照邻接关系信息和干扰强度信息从多个频带中分别为每个小区分配与该小区对应的频带。
相关技术中无法同时实现降低干扰且能够充分利用带宽资源。采用如图1所示的方法，通过确定可用带宽以及对可用带宽进行频带划分，再考虑当前网络下各个小区相互间的邻接关系(可以通过计算或继承同频组网时测量得到)并确定各个小区之间的干扰强度，以此对每个服务小区以及每个服务小区的邻接小区进行频带设置(例如：可以按照干扰情况、环境情况等因素为小区设置频带)，互为邻区的站点频点不同，逐步配置邻区频带，直至整个网络配置完成。由此解决了相关技术中无法同时实现降低干扰且能够充分利用带宽资源的问题，进而可以充分利用电信运营商的频谱资源，最大程度地降低系统中的干扰，改善网络性能，提升网络中的用户体验。
优选地，在步骤S106中，按照邻接关系信息和干扰强度信息分别为每个小区分配与该小区对应的频带可以包括以下操作：
步骤S1：从多个小区中依次选取服务小区，并为服务小区分配与该服务小区对应的频带；
步骤S2：在每次选取服务小区后，根据邻接关系信息确定与服务小区邻接的多个相邻小区，并根据干扰强度信息分别为多个相邻小区分配与每个相邻小区对应的频带，直至多个小区均分配到对应的频带。
在优选实施例中，可以从所有小区集合中按照预设顺序依次选择各个小区作为服务小区，逐个为每个服务小区分配对应的频带。在每次选取服务小区之后，还需要根
据与该服务小区邻接的各个相邻小区对该服务小区的干扰程度为每个相邻小区分配相应地带宽。
优选地，在步骤S1中，从多个小区中依次选取服务小区，并为服务小区分配与该服务小区对应的频带可以包括以下步骤：
步骤S11：按照预设顺序从多个小区中依次选取服务小区；
步骤S12：在确定服务小区未被作为其余服务小区的相邻小区而被分配对应的带宽的情况下，为服务小区分配与该服务小区对应的频带。
在优选实施例中，在每次选取服务小区后，首先应该判断该服务小区是否已经作为与其他服务小区邻接的相邻小区被分配过频带，例如：当前存在小区1、小区2和小区3，三者彼此之间两两相互邻接，假设按照预设顺序(例如：小区序号由小到大的顺序)，首先选取小区1作为服务小区，那么在为服务小区1分配对应的频带后，还需要为与小区1相邻接的相邻小区2和相邻小区3分配各自对应的频带。如果继续选取小区2作为服务小区，由于小区2在先前已经作为小区1的相邻小区被分配过频带，因此无需再为小区2分配相应地频带。再假设当前存在小区1、小区2、小区3和小区4，其中，小区1、小区3和小区4三者彼此之间两两相互邻接，而小区2仅与小区4相邻接。依旧按照上述设定的顺序首先选取小区1作为服务小区并为其分配对应的频带；其次，需要为与服务小区1相邻接的相邻小区3和相邻小区4分配各自对应的频带；然后，在选取小区2作为服务小区时，由于尚未为该服务小区2分配过对应的频带，因此，需要为服务小区2进行频带设置。
优选地，在步骤S12中，为服务小区分配与该服务小区对应的频带可以包括以下之一：
(1)当服务小区以及与该服务小区邻接的多个相邻小区的数量总和小于或等于多个频带的数量时，为服务小区分配与该服务小区邻接的多个相邻小区均不相同的频带；
(2)当服务小区以及与该服务小区邻接的多个相邻小区的数量总和大于多个频带的数量时，为服务小区分配与该服务小区邻接的多个相邻小区中对服务小区的干扰强度最弱的邻接小区的频带。
在优选实施例中，假设当前可用带宽可以划分为频带1、频带2、频带3和频带4这四个频带，而当前网络下仅存在小区1、小区2和小区3这三个小区，且三者彼此之间两两相互邻接。因此，当选取小区1为服务小区时，则可以先为服务小区1配置频带1、再为服务小区1的相邻小区2配置频带2以及为服务小区1的相邻小区3配置频带3，即三个小区各自配置的频带互不相同。相反地，假设当前可用带宽可以划分为频带1、频带2和频带3这三个频带，而当前网络下却存在小区1、小区2、小区
3和小区4这四个小区，且四者彼此之间两两相互邻接。因此，当选取小区1为服务小区时，由于服务小区以及相邻小区的数量总和大于频带的数量，因此，需要考虑小区2、小区3和小区4分别对小区1的干扰程度(例如：相邻小区对服务小区的干扰程度由小到大进行排序的结果依次为：小区2、小区3和小区4)，则可以为服务小区1和相邻小区2配置频带1，再为服务小区1的相邻小区3配置频带2以及为服务小区1的相邻小区4配置频带3，即为服务小区分配对其干扰强度最弱的邻区的频带。
优选地，在步骤S2中，根据干扰强度信息分别为多个相邻小区分配与每个相邻小区对应的频带可以包括以下操作：
步骤S21：在每次选取服务小区后，按照干扰强度由强到弱的顺序对与服务小区邻接的多个相邻小区进行排序；
步骤S22：逐个为排序后的多个相邻小区分配对应的频带。
假设当前存在小区1、小区2、小区3和小区4这四个小区，且四者彼此之间两两相互邻接。如果选取小区1作为服务小区，那么小区2、小区3和小区4则为小区1的相邻小区。因此，可以首先按照小区2、小区3和小区4各自对小区1的干扰程度进行排序，再按照干扰强度由强到弱的顺序依次为小区2、小区3和小区4分配各自对应的频带。
优选地，在步骤S22中，逐个为排序后的多个相邻小区分配对应的频带可以包括以下步骤：
步骤S221：依次判断每个排序后的相邻小区是否已经作为除服务小区之外的其他服务小区的相邻小区或者作为其他服务小区被分配过对应的频带；
步骤S222：如果是，则按照干扰强度由强到弱的顺序结果继续判断下一个相邻小区；
步骤S223：如果否，则为当前判断的相邻小区分配与服务小区以及按照干扰强度由强到弱的顺序结果已经分配过频带的相邻小区均不相同的频带，或者，当不存在均不相同的频带的情况下，则在交集中选取干扰强度最弱的相邻小区的频带作为当前判断的相邻小区的频带，其中，交集为与当前判断的相邻小区邻接的多个相邻小区以及与服务小区邻接的多个相邻小区两部分相交得到的公共相邻小区集合。
下面将结合以下优选实施例一至优选实施例三对上述优选实施过程做进一步的描述。
优选实施例一
图2是根据本发明优选实施例的频带的分配方法的流程图。如图2所示，该流程主要可以包括以下处理步骤：
步骤S202：假设现有的可用带宽为N，可以将现有的可用带宽N划分为m个互不重叠的小带宽(每个小带宽可以称之为子带，记为：subBand1、subBand2、…、subBandm，其对应的子带带宽分别为BWsb1、BWsb2、…、BWsbm)，其中，sum(BWsbi)＝N。
步骤S204：确定网络中小区的邻接关系和干扰强度。即可以通过站点的经纬度、方向角、基站发射功率等参数估算邻接关系和干扰强度。
步骤S206：服务小区频带配置。从所有小区集合中按照预设顺序依次选择各个小区作为服务小区，然后再选取此小区的邻区并按照干扰强度由强到弱的顺序排列成邻区集合II。
步骤S208：判断是否已经为服务小区分配过频带，如果是，则转到步骤S212；如果否，则继续执行步骤S210。
步骤S210：如果尚未为服务小区分配过频带，则为服务小区配置与邻区互异的频带，当不存在上述互异频带时，则为服务小区分配对其干扰强度最弱的邻区的频带。
步骤S212：邻接小区频带配置。Celli已配置过频带的邻区集合为IV，集合IV和集合II的交集为集合III(当集合IV为空时，则交集为邻区集合II)。
步骤S214：判断Celli是否已经分配过频带；如果是，则转到步骤S218；如果否，则转到步骤S216。
步骤S216：为Celli分配与服务小区以及集合III中小区不同的频带；如果缺少不同频带，则为Celli分配其在集合III中干扰强度最弱邻区的频带。
步骤S218：如果Celli已经分配过频带则跳到下一个邻区；逐步分配邻区集合II中所有邻区的频带，判断当前邻区是否为服务小区的最后一个相邻小区；如果是，则继续执行步骤S220；如果否，则转到步骤S212，直到所有邻区频带分配完成；
步骤S220：判断当前服务小区是否为当前网络下的最后一个小区；如果是，则继续执行步骤S222；如果否，则转到步骤S206，直至整个网络配置完成；
步骤S222：当所有小区的频点配置结束后，更新小区的同频邻区和异频邻区的列表。由于频点的改变，还需要更新系统配置的LTE小区的邻区列表。
优选实施例二
依旧如上述图2所示，该优选实施例与上述优选实施例1的最主要的区别在于确定网络中小区的邻接关系和干扰强度的方式有所差异，其流程主要可以包括以下处理步骤：
步骤S202：假设现有的可用带宽为N，可以将现有的可用带宽N划分为m个互不重叠的小带宽(每个小带宽被称之为子带，记为：subBand1、subBand2、…、subBandm，其对应的子带带宽分别为BWsb1、BWsb2、…、BWsbm)，其中，sum(BWsbi)＝N。
步骤S204：确定邻接关系和干扰强度。邻接关系可以使用同频组网时的邻接关系。并且采用如下方法确定小区的干扰强度：假设网络的用户足够多，获取同频组网时切换前上报的测量报告(可以是A3事件或者A4事件)，统计相同目标小区的服务小区的参考信号接收功率(RSRP)的均值，作为此邻区对服务小区的干扰值。然后，再按照上述方法依次获取所有邻区对服务小区的干扰值，并按照干扰强度从大到小进行排序。
步骤S206：服务小区频带配置。从所有小区集合中按照预设顺序依次选择各个小区作为服务小区，然后再选取此小区的邻区并按照干扰强度由强到弱的顺序排列成邻区集合II。
步骤S208：判断是否已经为服务小区分配过频带，如果是，则转到步骤S212；如果否，则继续执行步骤S210。
步骤S210：如果尚未为服务小区分配过频带，则为服务小区配置与邻区互异的频带，当不存在上述互异频带时，则为服务小区分配对其干扰强度最弱的邻区的频带。
步骤S212：邻接小区频带配置。Celli已配置过频带的邻区集合为IV，集合IV和集合II的交集为集合III(当集合IV为空时，交集为邻区集合II)。
步骤S214：判断Celli是否已经分配过频带；如果是，则转到步骤S218；如果否，则转到步骤S216。
步骤S216：为Celli分配与服务小区以及集合III中小区不同的频带，如果缺少不同频带，则为Celli分配其在集合III中干扰强度最弱邻区的频带。
步骤S218：如果Celli已经分配过频带则跳到下一个邻区；逐步分配邻区集合II中所有邻区的频带，判断当前邻区是否为服务小区的最后一个相邻小区；如果是，则继续执行步骤S220；如果否，则转到步骤S212，直到所有邻区频带分配完成；
步骤S220：判断当前服务小区是否为当前网络下的最后一个小区；如果是，则继
续执行步骤S222；如果否，则转到步骤S206，直至整个网络配置完成；
步骤S222：当所有小区的频点配置结束后，更新小区的同频邻区和异频邻区的列表。由于频点的改变，还需要更新系统配置的LTE小区的邻区列表。
优选实施例三
图3是根据本发明优选实施例的干扰自优化频带分配结果的示意图。如图3所示，假设采用LTE系统，运营商拥有的带宽为40MHz，特定区域(例如：共有19个小区)由于配置20M小区干扰严重影响LTE系统的使用性能，通过将服务小区划分为4个10MHz(分别为F1、F2、F3和F4，在图3中分别对应白色区域、横线阴影区域、竖线阴影区域、斜线阴影区域)的子带来优化干扰问题。假定服务小区的邻区为其周围的六个小区，干扰的强度按照顺时针方向逐步减小。干扰自优化频带分配方式如下：
步骤一、首先选择小区1，如果小区1尚未分配频带，则随机为小区1分配1个频带例如：频带F1。
步骤二、为小区1的邻区分配频带。假设为小区4分配频带，则需要选择与小区1不同的频带，例如：频带F4。再为小区5分配频带，则同样需要选择与小区1以及小区4均不同的频带，例如：频带F2。最后为小区2分配频带，由此，需要选择与小区5以及小区1均不同的频带，例如：F3。
步骤三、选择服务小区4，由于该服务小区已经配置过频带，则下一步需要为服务小区4的邻区配置频带。
步骤四、对于服务小区4的邻区8而言，需要分配与小区4不同的频带，例如：F2。对于服务小区4的邻区9而言，则需要分配与小区4、小区8和小区5均不同的频带，例如：F3。
步骤五、以此类推，按照上述步骤遍历所有19个小区，直至整个网络配置完成。全部配置完成的最终示意图如上述图3所示。
图4是根据本发明实施例的频带的分配装置的结构框图。如图4所示，该频带的分配装置可以包括：确定模块10，设置为确定可用带宽并将可用带宽划分为多个频带，其中，多个频带互不重叠；获取模块20，设置为获取当前网络下多个小区之间的邻接关系信息和干扰强度信息；分配模块30，设置为按照邻接关系信息和干扰强度信息从多个频带中分别为每个小区分配与该小区对应的频带。
采用如图4所示的装置，解决了相关技术中无法同时实现降低干扰且能够充分利
用带宽资源的问题，进而可以充分利用电信运营商的频谱资源，最大程度地降低系统中的干扰，改善网络性能，提升网络中的用户体验。
优选地，如图5所示，分配模块30可以包括：第一分配单元300，设置为从多个小区中依次选取服务小区，并为服务小区分配与该服务小区对应的频带；第二分配单元302，设置为在每次选取服务小区后，根据邻接关系信息确定与服务小区邻接的多个相邻小区，并根据干扰强度信息分别为多个相邻小区分配与每个相邻小区对应的频带，直至多个小区均分配到对应的频带。
优选地，第一分配单元300可以包括：选取子单元(图中未示出)，设置为按照预设顺序从多个小区中依次选取服务小区；第一分配子单元(图中未示出)，设置为在确定服务小区未被作为其余服务小区的相邻小区而被分配对应的带宽的情况下，为服务小区分配与该服务小区对应的频带。
优选地，第一分配子单元，设置为为服务小区分配与该服务小区对应的频带可以包括以下之一：
(1)当服务小区以及与该服务小区邻接的多个相邻小区的数量总和小于或等于多个频带的数量时，为服务小区分配与该服务小区邻接的多个相邻小区均不相同的频带；
(2)当服务小区以及与该服务小区邻接的多个相邻小区的数量总和大于多个频带的数量时，为服务小区分配与该服务小区邻接的多个相邻小区中对服务小区的干扰强度最弱的邻接小区的频带。
优选地，第二分配单元302可以包括：排序子单元(图中未示出)，设置为在每次选取服务小区后，按照干扰强度由强到弱的顺序对与服务小区邻接的多个相邻小区进行排序；第二分配子单元(图中未示出)，设置为逐个为排序后的多个相邻小区分配对应的频带。
优选地，第二分配子单元可以包括：判断子单元(图中未示出)，设置为依次判断每个排序后的相邻小区是否已经作为除服务小区之外的其他服务小区的相邻小区或者作为其他服务小区被分配过对应的频带；第一处理子单元(图中未示出)，设置为在判断子单元输出为是时，按照干扰强度由强到弱的顺序结果继续判断下一个相邻小区；第二处理子单元(图中未示出)，设置为在判断子单元输出为否时，为当前判断的相邻小区分配与服务小区以及按照干扰强度由强到弱的顺序结果已经分配过频带的相邻小区均不相同的频带，或者，当不存在均不相同的频带的情况下，则在交集中选取干扰强度最弱的相邻小区的频带作为当前判断的相邻小区的频带，其中，交集为与当前判断的相邻小区邻接的多个相邻小区以及与服务小区邻接的多个相邻小区两部分相交得到的公共相邻小区集合。
从以上的描述中，可以看出，上述实施例实现了如下技术效果(需要说明的是这些效果是某些优选实施例可以达到的效果)：采用本发明实施例所提供的技术方案，能够根据干扰情况合理地计算小区的频带，进而最大程度地降低LTE系统中的干扰，同时还能够提升系统的网络性能。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
如上所述，本发明实施例提供的一种频带的分配方法及装置具有以下有益效果：可以充分利用电信运营商的频谱资源，最大程度地降低系统中的干扰，改善网络性能，提升网络中的用户体验。
Claims (12)
- 一种频带的分配方法，包括：确定可用带宽并将所述可用带宽划分为多个频带，其中，所述多个频带互不重叠；获取当前网络下多个小区之间的邻接关系信息和干扰强度信息；按照所述邻接关系信息和所述干扰强度信息从所述多个频带中分别为每个小区分配与该小区对应的频带。
- 根据权利要求1所述的方法，其中，按照所述邻接关系信息和所述干扰强度信息分别为每个小区分配与该小区对应的频带包括：从所述多个小区中依次选取服务小区，并为所述服务小区分配与该服务小区对应的频带；在每次选取所述服务小区后，根据所述邻接关系信息确定与所述服务小区邻接的多个相邻小区，并根据所述干扰强度信息分别为所述多个相邻小区分配与每个相邻小区对应的频带，直至所述多个小区均分配到对应的频带。
- 根据权利要求2所述的方法，其中，从所述多个小区中依次选取服务小区，并为所述服务小区分配与该服务小区对应的频带包括：按照预设顺序从所述多个小区中依次选取所述服务小区；在确定所述服务小区未被作为其余服务小区的相邻小区而被分配对应的带宽的情况下，为所述服务小区分配与该服务小区对应的频带。
- 根据权利要求3所述的方法，其中，为所述服务小区分配与该服务小区对应的频带包括以下之一：当所述服务小区以及与该服务小区邻接的多个相邻小区的数量总和小于或等于所述多个频带的数量时，为所述服务小区分配与该服务小区邻接的多个相邻小区均不相同的频带；当所述服务小区以及与该服务小区邻接的多个相邻小区的数量总和大于所述多个频带的数量时，为所述服务小区分配与该服务小区邻接的多个相邻小区中对所述服务小区的干扰强度最弱的邻接小区的频带。
- 根据权利要求2所述的方法，其中，根据所述干扰强度信息分别为所述多个相邻小区分配与每个相邻小区对应的频带包括：在每次选取所述服务小区后，按照干扰强度由强到弱的顺序对与所述服务小 区邻接的多个相邻小区进行排序；逐个为排序后的多个相邻小区分配对应的频带。
- 根据权利要求5所述的方法，其中，所述逐个为排序后的多个相邻小区分配对应的频带包括：依次判断每个排序后的相邻小区是否已经作为除所述服务小区之外的其他服务小区的相邻小区或者作为其他服务小区被分配过对应的频带；如果是，则按照干扰强度由强到弱的顺序结果继续判断下一个相邻小区；如果否，则为当前判断的相邻小区分配与所述服务小区以及按照所述干扰强度由强到弱的顺序结果已经分配过频带的相邻小区均不相同的频带，或者，当不存在所述均不相同的频带的情况下，则在交集中选取所述干扰强度最弱的相邻小区的频带作为所述当前判断的相邻小区的频带，其中，所述交集为与所述当前判断的相邻小区邻接的多个相邻小区以及与所述服务小区邻接的多个相邻小区两部分相交得到的公共相邻小区集合。
- 一种频带的分配装置，包括：确定模块，设置为确定可用带宽并将所述可用带宽划分为多个频带，其中，所述多个频带互不重叠；获取模块，设置为获取当前网络下多个小区之间的邻接关系信息和干扰强度信息；分配模块，设置为按照所述邻接关系信息和所述干扰强度信息从所述多个频带中分别为每个小区分配与该小区对应的频带。
- 根据权利要求7所述的装置，其中，所述分配模块包括：第一分配单元，设置为从所述多个小区中依次选取服务小区，并为所述服务小区分配与该服务小区对应的频带；第二分配单元，设置为在每次选取所述服务小区后，根据所述邻接关系信息确定与所述服务小区邻接的多个相邻小区，并根据所述干扰强度信息分别为所述多个相邻小区分配与每个相邻小区对应的频带，直至所述多个小区均分配到对应的频带。
- 根据权利要求8所述的装置，其中，所述第一分配单元包括：选取子单元，设置为按照预设顺序从所述多个小区中依次选取所述服务小区；第一分配子单元，设置为在确定所述服务小区未被作为其余服务小区的相邻小区而被分配对应的带宽的情况下，为所述服务小区分配与该服务小区对应的频带。
- 根据权利要求9所述的装置，其中，所述第一分配子单元，设置为为所述服务小区分配与该服务小区对应的频带包括以下之一：当所述服务小区以及与该服务小区邻接的多个相邻小区的数量总和小于或等于所述多个频带的数量时，为所述服务小区分配与该服务小区邻接的多个相邻小区均不相同的频带；当所述服务小区以及与该服务小区邻接的多个相邻小区的数量总和大于所述多个频带的数量时，为所述服务小区分配与该服务小区邻接的多个相邻小区中对所述服务小区的干扰强度最弱的邻接小区的频带。
- 根据权利要求8所述的装置，其中，所述第二分配单元包括：排序子单元，设置为在每次选取所述服务小区后，按照干扰强度由强到弱的顺序对与所述服务小区邻接的多个相邻小区进行排序；第二分配子单元，设置为逐个为排序后的多个相邻小区分配对应的频带。
- 根据权利要求11所述的装置，其中，所述第二分配子单元包括：判断子单元，设置为依次判断每个排序后的相邻小区是否已经作为除所述服务小区之外的其他服务小区的相邻小区或者作为其他服务小区被分配过对应的频带；第一处理子单元，设置为在所述判断子单元输出为是时，按照干扰强度由强到弱的顺序结果继续判断下一个相邻小区；第二处理子单元，设置为在所述判断子单元输出为否时，为当前判断的相邻小区分配与所述服务小区以及按照所述干扰强度由强到弱的顺序结果已经分配过频带的相邻小区均不相同的频带，或者，当不存在所述均不相同的频带的情况下，则在交集中选取所述干扰强度最弱的相邻小区的频带作为所述当前判断的相邻小区的频带，其中，所述交集为与所述当前判断的相邻小区邻接的多个相邻小区以及与所述服务小区邻接的多个相邻小区两部分相交得到的公共相邻小区集合。
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| EP2091165A1 (en) * | 2006-12-08 | 2009-08-19 | Fujitsu Limited | Method for reducing interference between adjacent sectors, and base station apparatus |
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| CN103813347A (zh) * | 2014-02-28 | 2014-05-21 | 电信科学技术研究院 | 一种基站频率资源配置方法及网络设备 |
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| CN102905274B (zh) * | 2008-07-03 | 2015-04-29 | 中兴通讯股份有限公司 | 分层无线接入系统的频率分配方法 |
| CN101784116B (zh) * | 2009-01-19 | 2012-07-04 | 华为技术有限公司 | 一种探测参考信号资源分配的方法、系统和设备 |
| KR20110128477A (ko) * | 2010-05-24 | 2011-11-30 | 엘지에릭슨 주식회사 | 이동통신 시스템 및 그의 셀 설계 및 주파수 재사용 방법 |
| CN102036250B (zh) * | 2010-12-28 | 2013-09-25 | 华为技术有限公司 | 一种上行频带资源的动态分配方法及基站 |
| CN102726085A (zh) * | 2011-06-28 | 2012-10-10 | 华为技术有限公司 | 频带资源分配方法、处理器及基站 |
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| CN1413035A (zh) * | 2001-10-12 | 2003-04-23 | 上海大唐移动通信设备有限公司 | 一种频率分配中频点的最优化选择方法 |
| EP2091165A1 (en) * | 2006-12-08 | 2009-08-19 | Fujitsu Limited | Method for reducing interference between adjacent sectors, and base station apparatus |
| CN102083075A (zh) * | 2009-11-30 | 2011-06-01 | 中国移动通信集团江苏有限公司 | 一种基于邻区优先级的频率规划和扰码规划方法和设备 |
| CN103327495A (zh) * | 2013-06-04 | 2013-09-25 | 北京邮电大学 | 一种基于多基站联合处理的动态频谱分配方法 |
| CN103813347A (zh) * | 2014-02-28 | 2014-05-21 | 电信科学技术研究院 | 一种基站频率资源配置方法及网络设备 |
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| US20200329470A1 (en) * | 2017-12-29 | 2020-10-15 | Nokia Technologies Oy | Method, apparatus, and computer readable medium for channel bonding |
| US11665716B2 (en) * | 2017-12-29 | 2023-05-30 | Nokia Solutions And Networks Oy | Method, apparatus, and computer readable medium for channel bonding |
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