CN110831011A - Far-end interference characteristic optimization method and device - Google Patents
Far-end interference characteristic optimization method and device Download PDFInfo
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- CN110831011A CN110831011A CN201810912104.8A CN201810912104A CN110831011A CN 110831011 A CN110831011 A CN 110831011A CN 201810912104 A CN201810912104 A CN 201810912104A CN 110831011 A CN110831011 A CN 110831011A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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Abstract
The application discloses a method and a device for optimizing far-end interference characteristics, wherein the method comprises the steps that when a disturbed cell reaches a backspacing state conversion threshold, a base station acquires load information of the disturbed cell; and determining whether to carry out special subframe configuration backspacing on the interfered cell according to the load information. The method provided by the application can selectively carry out special subframe configuration backspacing according to the load of the cell, and avoids the problem of cell congestion caused by overlarge network load of the cell after the special subframe configuration backspacing.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for optimizing a far-end interference characteristic.
Background
An LTE (Long Term Evolution ) cell a is located in a traffic-intensive area, and the area where the cell a is located is also a coastal city or a plain city affected by seasonal fogging, so the cell a is susceptible to far-end interference due to geographical location.
Suppose that there is an inter-frequency neighboring cell in the system with the same coverage or a part of the same coverage around the cell a, the network load of the interfered LTE cell a (or referred to as an interfered cell) is heavier, and the network load of the inter-frequency neighboring cell (cell B) of the cell a is general. The current method to reduce the far-end interference impact of cell a is (as shown in fig. 1):
102, performing special subframe configuration rollback based on the number of the characteristic sequences; wherein, the special subframe configuration means: configuring indexes according to different definitions of the number of symbols occupied by DwPTS (Downlink Pilot time Slot), GP (Guard period), UpPTS (Uplink Pilot time Slot) in the special subframe; the corresponding special subframe configuration fallback means: the special subframe configuration of the disturbed cell is adjusted, for example: and if the special subframe configuration of the interfered cell is adjusted from 10:2:2 or 9:3:2 to 3:9:2, the cell is considered to be subjected to special subframe configuration rollback.
104, judging whether the number of the detected characteristic sequences exceeds a backspacing state starting threshold or not by the cell A, and if not, turning to 103; otherwise, go to step 105;
Through the atmospheric waveguide effect, when a far-end interference condition is generated, the cell A judges whether special subframe configuration backspacing is performed or not according to the number of received characteristic sequences, and the far-end interference of the cell A is reduced after the backspacing is successful.
Disclosure of Invention
The application provides a method and a device for optimizing far-end interference characteristics, which are used for solving the technical problem that the network resources of a cell reduce the congestion of an interfered cell caused by the method for reducing the far-end interference by the configuration backspacing of the existing special subframe.
In a first aspect, an embodiment of the present application provides a method for optimizing far-end interference characteristics, including:
when a disturbed cell reaches a rollback state conversion threshold, a base station acquires load information of the disturbed cell;
determining whether the load of the disturbed cell exceeds a preset threshold according to the load information, if so, performing load balancing on the disturbed cell, and performing special subframe configuration backspacing on the disturbed cell after reducing the network load of the disturbed cell;
otherwise, carrying out special subframe configuration backspacing on the interfered cell.
In the method provided by the embodiment of the application, before the disturbed cell is determined to need special subframe configuration rollback, the load of the disturbed cell is determined, and whether special subframe configuration rollback is performed is determined according to the load, so that the special subframe configuration rollback operation of the disturbed cell does not cause the problems of insufficient resources, cell congestion and influence on user perception in the disturbed cell;
in this embodiment, when the base station determines that the disturbed cell is overloaded, the base station performs special subframe configuration backoff after performing load balancing, thereby solving the cell congestion caused by the special subframe configuration backoff to a certain extent.
In an optional embodiment, performing special subframe configuration fallback on the interfered cell comprises:
fallback the special subframe configuration of the interfered cell to 3:9: 2.
In an optional embodiment, determining whether the load of the disturbed cell exceeds a preset threshold according to the load information includes:
determining the normal subframe configuration and the special subframe configuration of the interfered cell according to the parameters configured by the base station;
selecting a calculation formula of a cell load increment K according to the subframe configuration of the interfered cell, and calculating to obtain the load increment K after the interfered cell retreats from the special subframe configuration;
determining a resource load ratio B of the disturbed cell after the special subframe configuration fallback is determined to be the sum of the load increment K and the current resource load ratio A of the disturbed cell;
and the base station determines whether the resource load ratio B is not less than a preset load ratio threshold G, and if so, determines that the load of the interfered cell exceeds a preset threshold.
In this optional embodiment, the base station may first determine that the disturbed cell may have an increased load to the disturbed cell if the disturbed cell performs special subframe configuration fallback, and then, after superimposing the increased load and the current load of the disturbed cell, determine whether congestion may occur if the disturbed cell performs special subframe fallback, which may avoid a situation that the cell is congested in an overloaded cell after performing special subframe fallback although the cell is not overloaded currently.
In an alternative embodiment, the formula for K includes:
K＝NS/ND*NSS/NTS
wherein, the N is according to the cell subframe configuration indicated in the parameters of the base station configurationSThe number of special subframes under the condition of cell subframe configuration; said N isDThe number of downlink subframes under the condition of cell subframe configuration; said N isSSThe number of symbols in a special subframe occupied by a downlink pilot time slot DwPTS in the special subframe under the cell subframe configuration condition; n is a radical ofTSAnd configuring the total number of symbols in a special subframe under the condition of the cell subframe.
In a second aspect, an embodiment of the present application further provides a far-end interference characteristic optimization apparatus, including:
an obtaining module, configured to determine that a disturbed cell reaches a fallback state transition threshold, and obtain load information of the disturbed cell;
a back-off determining module, configured to determine whether the load of the disturbed cell exceeds a preset threshold according to the load information, and if so, perform load balancing on the disturbed cell, and perform special subframe configuration back-off on the disturbed cell after reducing the network load of the disturbed cell; otherwise, carrying out special subframe configuration backspacing on the interfered cell.
In an optional embodiment, the fallback determining module is specifically configured to fallback to 3:9:2 the special subframe configuration of the disturbed cell.
In an optional embodiment, the back-off determining module is specifically configured to determine, through parameters configured by a base station, a normal subframe configuration and a special subframe configuration of the victim cell; selecting a calculation formula of a cell load increment K according to the subframe configuration of the interfered cell, and calculating to obtain the load increment K after the interfered cell retreats from the special subframe configuration; determining a resource load ratio B of the disturbed cell after the special subframe configuration fallback is determined to be the sum of the load increment K and the current resource load ratio A of the disturbed cell; and the base station determines whether the resource load ratio B is not less than a preset load ratio threshold G, and if so, determines that the load of the interfered cell exceeds a preset threshold.
In an alternative embodiment, the formula for calculating K includes:
K＝NS/ND*NSS/NTS
wherein, the N is according to the cell subframe configuration indicated in the parameters of the base station configurationSThe number of special subframes under the condition of cell subframe configuration; said N isDThe number of downlink subframes under the condition of cell subframe configuration; said N isSSThe number of symbols in a special subframe occupied by DWPTS in the special subframe under the cell subframe configuration condition; n is a radical ofTSAnd configuring the total number of symbols in a special subframe under the condition of the cell subframe.
In a third aspect, an embodiment of the present application further provides a base station, including:
a memory for storing instructions for execution by the processor;
a processor configured to execute instructions stored in a memory to perform the method of any of the optional embodiments of the first aspect.
In a fourth aspect, the present application further provides a computer-readable storage medium, which stores computer instructions that, when executed on a computer, cause the computer to perform the method described in any optional implementation manner of the first aspect.
Drawings
Fig. 1 is a schematic flow chart of a method for reducing the far-end interference impact of a cell a in the prior art;
fig. 2 is a schematic flowchart of a remote interference characteristic optimization method according to an embodiment of the present disclosure;
fig. 3 is a schematic flowchart of a method for determining whether a load of the disturbed cell exceeds a preset threshold according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a remote interference characteristic optimization apparatus according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a base station according to an embodiment of the present application.
Detailed Description
In the prior art, the method for reducing remote interference by special subframe configuration backspacing is only based on the special subframe configuration backspacing with the number of characteristic sequences, only considers the cell interference condition and does not consider the cell network load condition; special subframe configuration rollback is preferentially performed only on the basis of the special subframe configuration rollback of the number of the characteristic sequences, and a disturbed cell may have heavy cell load, so that the disturbed cell is easy to cause insufficient resources, cell congestion and influence on user perception; and the traffic distribution is easily uneven, which is not favorable for the load balance of the whole LTE network. When determining that a disturbed cell reaches a back-off state conversion threshold, the method provided by the embodiment of the application does not directly perform special subframe configuration back-off, but acquires load information of the disturbed cell and determines whether to perform special subframe configuration back-off according to the load information; because special subframe configuration fallback can directly affect cell loads, the method provided by the embodiment of the application can selectively perform special subframe configuration fallback according to the cell loads, and avoid cell congestion caused by overlarge cell network loads after special subframe configuration fallback.
Example one
As shown in fig. 2, the following describes in further detail a method for optimizing far-end interference characteristics according to an embodiment of the present application with reference to the accompanying drawings and specific application scenarios:
In the embodiment of the application, after determining that the disturbed cell reaches the back-off state conversion threshold, the current load information of the disturbed cell can be directly obtained, and the load information is used for measuring the use condition of network resources of the disturbed cell; after the special subframe configuration of the disturbed cell is backed off, the network resources of the cell can be directly influenced by the backed-off special subframe configuration, so that the load change condition of the disturbed cell before and after the special subframe configuration is backed off can be determined according to the current special subframe configuration and the backed-off special subframe configuration of the disturbed cell, and the increased load of the backed-off cell can be configured based on the current load condition of the disturbed cell and the special subframe configuration, so that whether the overload of the disturbed cell occurs and is congested after the disturbed cell is backed off by the special subframe configuration or not can be determined; thereby determining the specific fallback manner according to the load change. Then, the specific implementation of determining whether to perform special subframe configuration fallback on the disturbed cell according to the load information may be:
a1, determining whether the load of the disturbed cell exceeds a preset threshold according to the load information, if so, performing load balancing on the disturbed cell, and after reducing the network load of the disturbed cell, performing special subframe configuration rollback on the disturbed cell; the manner of determining whether the load of the disturbed cell exceeds the preset threshold may include various manners, and the specific implementation provided by this embodiment may be:
1) determining the highest threshold of the cell load according to the current subframe configuration of the disturbed cell, and if the cell load exceeds the highest threshold, determining that the cell load exceeds a preset threshold; because the congestion of the disturbed cell is caused even if the load brought by the special subframe configuration rollback is not large if the current cell is overloaded, the special subframe configuration rollback can be directly, quickly and effectively determined after the load balancing is needed.
2) If the disturbed cell performs special subframe configuration rollback, the disturbed cell determines the current load a according to the special subframe configuration after rollback and the load b increased by the special subframe configuration after the special subframe configuration is rollback; determining whether the load of the disturbed cell exceeds a preset threshold or not based on the conditions of the load a and the load b;
in the embodiment of the present application, the load balancing may be specifically implemented by the base station determining the load ratio of the cell in real time through an algorithm related to resource management, and when the cell load exceeds a threshold, the base station may switch a part of users of the interfered cell to neighboring cells with relatively lower resource loads according to a certain selection policy. When determining a relatively low neighboring cell, the base station sets a load threshold for the cell, and when detecting that the sum of the current load of the neighboring cell and the load offset value is not greater than the load threshold, determines that the neighboring cell belongs to a low-load cell.
A2, otherwise, performing special subframe configuration fallback on the interfered cell.
In this embodiment, for the purpose of reducing far-end interference after special subframe backoff, in this embodiment, performing special subframe configuration backoff on the victim cell may be to backoff the special subframe configuration of the victim cell to 3:9: 2.
After the special subframe configuration is returned to 3:9:2, the DwPTS in the special subframe does not send data, GP is increased, and therefore the interference chance is reduced, and finally the purpose of reducing far-end interference is achieved.
As shown in fig. 3, to describe the method provided in the embodiment of the present application in more detail, an implementation manner of determining whether the load of the disturbed cell exceeds a preset threshold according to the load information in the embodiment of the present application is further described below with reference to specific examples, and specifically the method may include:
when the external field LTE system is actually applied, the general normal subframe configuration and the special subframe configuration may be 2:7 or 2:6, 2:7, that is, the normal subframe configuration index is 2, and the special subframe configuration index is 7. 2:6, i.e., the regular subframe configuration index is 2 and the special subframe configuration index is 6.
wherein, the formula for calculating K may be: k is NS/ND*NSS/NTS
According to the cell subframe configuration indicated in the parameters configured by the base station, the meaning of each parameter in the calculation formula of the K is as follows:
said N isSThe number of special subframes under the condition of cell subframe configuration;
said N isDThe number of downlink subframes under the condition of cell subframe configuration; in the TD-LTE time domain, when the configuration index of the normal subframe is 2 and the configuration index of the special subframe is 7, in a half frame of 5ms, the uplink and downlink subframes are configured according to DSUDD, that is, there are 4 downlink subframes (D is the normal downlink subframe, S is the special subframe, when the configuration index of the special subframe is 7, the DwPTS in the special subframe can transmit downlink data, that is, the S subframe can also transmit downlink traffic as the downlink subframe;
said N isSSThe number of symbols in a special subframe occupied by DwPTS in the special subframe under the cell subframe configuration condition;
NTSand configuring the total number of symbols in a special subframe under the condition of the cell subframe.
Wherein N isS/NDCalculating the ratio of the subframe incapable of sending data to the whole downlink subframe in a half frame of 5ms after the special subframe configuration is returned (the special subframe returns, the special subframe does not send data);
NSS/NTSthe ratio of the DwPTS used for transmitting data to the number of symbols in the whole special subframe in one special subframe is calculated.
In case of normal subframe configuration and special subframe configuration 2:7 or 2:6, then the formula for K is:
when the normal subframe configuration and the special subframe configuration are 2:7, then NS＝1；ND＝4；NSS＝10；NTS14; k1/4 × 10/14; when the normal subframe configuration and the special subframe configuration are 2:6, then NS＝1；ND＝4；NSS＝9；NTS14; k1/4 × 9/14. In this embodiment, when the external field LTE system is actually applied, the general normal subframe configuration and the special subframe configuration are 2:7 or 2:6, so in this embodiment, the base station may store the K value corresponding to the subframe configuration parameter of 2:7 or 2:6 in advance after calculating the K value, so that the base station directly acquires the stored K value when in use.
In the method provided by the embodiment of the application, before the disturbed cell is determined to need to perform the special subframe configuration rollback, the load brought to the disturbed cell by the disturbed cell if the disturbed cell performs the special subframe configuration rollback is determined, so that whether the cell overload condition occurs after the disturbed cell performs the special subframe configuration rollback is determined, and if the cell overload condition occurs, the cell load balancing is performed first and then the special subframe configuration rollback is performed, so that the problems of insufficient resources, cell congestion and influence on user perception of the disturbed cell caused by the special subframe configuration rollback operation of the disturbed cell are solved. In addition, the method provided by the embodiment can perform load balancing on the overloaded disturbed cell, so that the beneficial effects of uniform cell traffic distribution and load balancing of the whole LTE network can be achieved.
Example two
As shown in fig. 4, an embodiment of the present application provides a far-end interference characteristic optimization apparatus, which may include:
an obtaining module 401, configured to determine that a disturbed cell reaches a fallback state transition threshold, and obtain load information of the disturbed cell;
a back-off determining module 402, configured to determine whether to perform special subframe configuration back-off on the disturbed cell according to the load information.
Optionally, the back-off determining module 402 is specifically configured to determine whether the load of the disturbed cell exceeds a preset threshold according to the load information, if so, perform load balancing on the disturbed cell, and perform special subframe configuration back-off on the disturbed cell after reducing the network load of the disturbed cell; otherwise, carrying out special subframe configuration backspacing on the interfered cell.
Optionally, after the special subframe configuration is backed to 3:9:2, the DwPTS does not send data, and the GP becomes larger, so that the interference chance is reduced, and finally the purpose of reducing the far-end interference is achieved. The fallback determination module 402 is specifically configured to fallback the special subframe configuration of the victim cell to 3:9: 2.
Optionally, the back-off determining module 402 is specifically configured to determine, according to a parameter configured by the base station, a normal subframe configuration and a special subframe configuration of the interfered cell; selecting a calculation formula of a cell load increment K according to the subframe configuration of the interfered cell, and calculating to obtain the load increment K after the interfered cell retreats from the special subframe configuration; determining a resource load ratio B of the disturbed cell after the special subframe configuration fallback is determined to be the sum of the load increment K and the current resource load ratio A of the disturbed cell; and the base station determines whether the resource load ratio B is not less than a preset load ratio threshold G, and if so, determines that the load of the interfered cell exceeds a preset threshold.
Wherein the calculation formula of K comprises:
K＝NS/ND*NSS/NTS
wherein, the N is according to the cell subframe configuration indicated in the parameters of the base station configurationSThe number of special subframes under the condition of cell subframe configuration; said N isDConfiguring the cell subframeUnder the set condition, the number of downlink subframes is increased; said N isSSThe number of symbols in a special subframe occupied by DwPTS in the special subframe under the cell subframe configuration condition; n is a radical ofTSAnd configuring the total number of symbols in a special subframe under the condition of the cell subframe.
EXAMPLE III
As shown in fig. 5, the present invention also provides another base station for performing the remote interference characteristic optimization method in the foregoing embodiments, where the base station includes at least one processor 501 (e.g., CPU), at least one network interface 502 or other communication interfaces, a memory 503, and at least one communication bus 504, which are used for implementing connection communication between these apparatuses. The processor 501 is arranged to execute executable modules, such as computer programs, stored in the memory 503. The Memory 503 may include a high-speed Random Access Memory (RAM) and may also include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The communication connection between the system gateway and at least one other network element is realized through at least one network interface 502 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like can be used.
In some embodiments, the memory stores a program 5031 that can be executed by the processor to implement the method described in example one.
Based on the same inventive concept, an embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer is enabled to execute the method for optimizing the far-end interference characteristic according to the embodiment of the present application.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A method for optimizing characteristics of far-end interference, comprising:
when a disturbed cell reaches a rollback state conversion threshold, a base station acquires load information of the disturbed cell;
determining whether the load of the disturbed cell exceeds a preset threshold according to the load information, if so, performing load balancing on the disturbed cell, and performing special subframe configuration backspacing on the disturbed cell after reducing the network load of the disturbed cell;
otherwise, carrying out special subframe configuration backspacing on the interfered cell.
2. The method of claim 1, wherein performing special subframe configuration fallback for the victim cell comprises:
fallback the special subframe configuration of the interfered cell to 3:9: 2.
3. The method of claim 1 or 2, wherein determining whether the load of the victim cell exceeds a preset threshold based on the load information comprises:
determining the normal subframe configuration and the special subframe configuration of the interfered cell according to the parameters configured by the base station;
selecting a calculation formula of a cell load increment K according to the subframe configuration of the interfered cell, and calculating to obtain the load increment K after the interfered cell retreats from the special subframe configuration;
determining a resource load ratio B of the disturbed cell after the special subframe configuration fallback is determined to be the sum of the load increment K and the current resource load ratio A of the disturbed cell;
and the base station determines whether the resource load ratio B is not less than a preset load ratio threshold G, and if so, determines that the load of the interfered cell exceeds a preset threshold.
4. The method of claim 3, wherein the formula for calculating K comprises:
K＝NS/ND*NSS/NTS
wherein, the N is according to the cell subframe configuration indicated in the parameters of the base station configurationSThe number of special subframes under the condition of cell subframe configuration; said N isDThe number of downlink subframes under the condition of cell subframe configuration; said N isSSThe number of symbols in a special subframe occupied by a downlink pilot time slot DwPTS in the special subframe under the cell subframe configuration condition; n is a radical ofTSAnd configuring the total number of symbols in a special subframe under the condition of the cell subframe.
5. A remote interference characteristic optimization apparatus, comprising:
an obtaining module, configured to determine that a disturbed cell reaches a fallback state transition threshold, and obtain load information of the disturbed cell;
a back-off determining module, configured to determine whether the load of the disturbed cell exceeds a preset threshold according to the load information, and if so, perform load balancing on the disturbed cell, and perform special subframe configuration back-off on the disturbed cell after reducing the network load of the disturbed cell; otherwise, carrying out special subframe configuration backspacing on the interfered cell.
6. The apparatus of claim 6, wherein the fallback determination module is specific for fallback to a special subframe configuration of the victim cell to 3:9: 2.
7. The apparatus of claim 5 or 6, wherein the back-off determining module is specifically configured to determine a normal subframe configuration and a special subframe configuration of the victim cell through parameters configured by a base station; selecting a calculation formula of a cell load increment K according to the subframe configuration of the interfered cell, and calculating to obtain the load increment K after the interfered cell retreats from the special subframe configuration; determining a resource load ratio B of the disturbed cell after the special subframe configuration fallback is determined to be the sum of the load increment K and the current resource load ratio A of the disturbed cell; and the base station determines whether the resource load ratio B is not less than a preset load ratio threshold G, and if so, determines that the load of the interfered cell exceeds a preset threshold.
8. The apparatus of claim 7, wherein the formula for K comprises:
K＝NS/ND*NSS/NTS
wherein, the N is according to the cell subframe configuration indicated in the parameters of the base station configurationSThe number of special subframes under the condition of cell subframe configuration; said N isDThe number of downlink subframes under the condition of cell subframe configuration; said N isSSThe number of symbols in a special subframe occupied by DwPTS in the special subframe under the cell subframe configuration condition; n is a radical ofTSAnd configuring the total number of symbols in a special subframe under the condition of the cell subframe.
9. A base station, comprising:
a memory for storing instructions for execution by the processor;
a processor for executing instructions stored in the memory to perform the method of any one of claims 1-4.
10. A computer-readable storage medium having stored thereon computer instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1-4.
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| WO2011116674A1 (en) * | 2010-03-24 | 2011-09-29 | 电信科学技术研究院 | Method and device for processing inter-subframe service load balancing and processing inter-cell interference |
| WO2013116762A1 (en) * | 2012-02-02 | 2013-08-08 | Qualcomm Incorporated | Short random access channel (rach) disabling in tdd-lte |
| CN106792793A (en) * | 2016-11-11 | 2017-05-31 | 中国移动通信集团江苏有限公司 | A kind of special subframe collocation method, device and base station |
| CN108235445A (en) * | 2016-12-21 | 2018-06-29 | 大唐移动通信设备有限公司 | A kind of method and apparatus that characteristic sequence is detected in wireless communication system |
| CN108259112A (en) * | 2016-12-29 | 2018-07-06 | 中国移动通信集团浙江有限公司 | A kind of timeslot-based base station interference elimination method and device |
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