CN113473484B - Method and device for adjusting cell coverage - Google Patents
Method and device for adjusting cell coverageDownload PDFInfo
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- CN113473484B CN113473484BCN202110736572.6ACN202110736572ACN113473484BCN 113473484 BCN113473484 BCN 113473484BCN 202110736572 ACN202110736572 ACN 202110736572ACN 113473484 BCN113473484 BCN 113473484B
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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
- H04W16/18—Network planning tools
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/20—Performing reselection for specific purposes for optimising the interference level
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/22—Performing reselection for specific purposes for handling the traffic
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/02—Access restriction performed under specific conditions
- H04W48/06—Access restriction performed under specific conditions based on traffic conditions
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Abstract
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for adjusting a cell coverage.
Background
In wireless communication, continuous coverage of a specific area is achieved mainly through joint coverage of different base station cells. In a high-density coverage scenario, a User Equipment (UE) is often greatly interfered by an adjacent cell, it is difficult to obtain a channel use right, and a transmission rate is low.
In the prior art, the cell coverage needs to be adjusted to implement cell load shifting. The existing cell coverage adjustment mainly adjusts the azimuth angle and the pitch angle of an antenna, when the cell coverage is determined, relevant parameters of the antenna are adjusted according to the traffic to realize load transfer, but the communication quality of the terminal of the whole cell is influenced, and the interference of an overlapping coverage area of adjacent cells is increased.
Disclosure of Invention
The invention provides a method and a device for adjusting a cell coverage range, which are used for solving the defect of signal quality fluctuation in the cell range caused by adjusting the cell coverage range by adjusting antenna related parameters in the prior art and adjusting the cell range to limit the access of specified users on the premise of not influencing the communication quality of a terminal in the whole cell.
The invention provides a method for adjusting a cell coverage area, which comprises the following steps:
judging whether the target cell meets a first target condition;
and under the condition that the target cell meets the first target condition, adjusting a first target parameter of the target cell, and/or controlling the access of the target terminal to the target cell based on a second target parameter of a target terminal.
According to the method for adjusting the cell coverage provided by the present invention, the first target parameter includes: a minimum received level and/or a cell nominal power.
According to the method for adjusting the cell coverage provided by the present invention, the controlling the access of the target terminal to the target cell based on the second target parameter of the target terminal specifically includes:
acquiring the second target parameter of the target terminal;
and under the condition that the second target parameter meets a second target condition, keeping the target terminal to be accessed to the target cell.
According to the method for adjusting the cell coverage provided by the present invention, after the second target parameter of the target terminal is obtained, the method further includes:
and releasing the target terminal to the adjacent cell under the condition that the second target parameter does not meet a second target condition.
According to the method for adjusting the cell coverage provided by the invention, the second target parameter comprises a timing advance;
the second target parameter satisfying the second target condition includes: the timing advance is less than a timing advance threshold.
According to the method for adjusting the cell coverage provided by the invention, the second target parameter comprises uplink energy;
the second target parameter satisfying the second target condition includes: the uplink energy is greater than an uplink energy threshold.
According to the method for adjusting the cell coverage provided by the invention, the second target parameter comprises a timing advance and uplink energy;
the second target parameter satisfying the second target condition includes: the timing advance is smaller than a timing advance threshold, and the uplink energy is larger than an uplink energy threshold.
The invention also provides a device for adjusting the cell coverage, which comprises:
the judging module is used for judging whether the target cell meets a first target condition;
an adjusting module, configured to adjust a first target parameter of the target cell and/or control access of the target terminal to the target cell based on a second target parameter of the target terminal, when the target cell meets the first target condition.
The present invention also provides an electronic device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of the method for adjusting the cell coverage as described in any of the above.
The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method of adjusting cell coverage as set forth in any of the above.
The method and the device for adjusting the cell coverage area provided by the invention are based on that when the cell reselection is carried out, the user terminal meets or does not meet the cell reselection condition by adjusting the cell related parameters, the cell is reselected to the cell or other cells, which is equivalent to enlarging or reducing the coverage area of the cell, and/or the user terminal accesses the cell or releases the user terminal to an adjacent cell according to the cell coverage area by acquiring the user terminal related parameters of the accessed cell, which is equivalent to adjusting the cell coverage area, the access of the user terminal is controlled, and the cell coverage area can be adjusted to control the access of the edge user terminal without affecting the communication quality of the whole cell. Further, the interference of the neighboring cell to the target cell in the overlapping area can be reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method for adjusting a cell coverage according to the present invention;
FIG. 2 is a schematic diagram of the coverage of neighboring cells provided by the present invention;
fig. 3 is a schematic structural diagram of an apparatus for adjusting a cell coverage provided in the present invention;
FIG. 4 is a schematic structural diagram of an electronic device provided by the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a flowchart illustrating a method for adjusting a cell coverage area according to the present invention. As shown in fig. 1, a method for adjusting a cell coverage provided in an embodiment of the present invention includes:step 101, determining whether the target cell satisfies a first target condition.
It can be understood that, if there are more cell signals simultaneously covering a region, and the signal strength of such cells is relatively close and the number of such cells is large, events such as the terminal having no main serving cell, frequent handover, etc. may occur, which may result in a call drop and a failure to access the internet.
The execution subject of the method for adjusting the cell coverage is a device for adjusting the cell coverage, and the device is installed on a base station to execute the corresponding method for adjusting the cell coverage on a target cell.
The target cell is a primary serving cell selected by the UE when initial cell selection is performed.
Cell selection/reselection refers to a terminal device selecting a suitable cell to camp on in response to, for example, being turned on, exiting an airplane mode, moving among a plurality of cells, and the like.
The coverage area is determined according to whether the UE can access the cell, and the UE in the coverage area is the UE capable of accessing the cell.
The first target condition is a determination condition set based on different evaluation parameters, and is used for determining whether the cell access needs to be controlled. The embodiment of the present invention does not specifically limit the selection of the evaluation parameter and the setting manner of the first target condition.
Specifically, the device for adjusting the cell coverage may obtain an evaluation parameter for characterizing a condition of the target cell, and determine whether the access of the target cell needs to be controlled in combination with the first target condition.
When the evaluation parameter of the target cell satisfies the first target condition, the apparatus for adjusting the cell coverage needs to control the access of the target cell.
In case the evaluation parameter of the target cell does not satisfy the first target condition, it is explained that the apparatus for adjusting the cell coverage does not need to control the access of the target cell.
Optionally, in a cell access/reselection scenario, in a case that a target cell is overloaded or communication quality is poor, it is determined whether access of the target cell needs to be controlled.
The evaluation parameter is the UE access quantity ratio, and correspondingly, the first target condition is that the actual UE access quantity ratio is larger than a preset threshold value. The actual UE access number ratio acquired by the device for adjusting the cell coverage meets a first target condition, which indicates that the cell load is too large, and the device for adjusting the cell coverage controls the access of the target cell, so that the number of the UE accessed to the cell is reduced.
Preferably, in a high-density coverage scenario, the UE in the repeated coverage area is often greatly interfered by the neighboring cell, and it is difficult to determine the primary serving cell, and it is determined whether the access of the target cell needs to be controlled.
The evaluation parameter is a Sounding Reference Signal (SRS), and correspondingly, the first target condition is that a Signal to Interference plus Noise Ratio (SINR) of the UE obtained through the SRS is smaller than a preset discrimination threshold. And the device for adjusting the cell coverage obtains the SINR through the SRS acquired in the cell, and if the SINR meets the first target condition, the UE is divided into edge user terminals of the cell. If the UE is divided into edge UEs in two adjacent cells under the base station, it indicates that there is an edge UE in the overlapping coverage area of the adjacent cells, and the device that needs to adjust the cell coverage performs the method of adjusting the cell coverage to determine and access the primary serving cell of the UE.
And 102, under the condition that the target cell meets the first target condition, adjusting a first target parameter of the target cell, and/or controlling the access of the target terminal to the target cell based on a second target parameter of the target terminal.
Alternatively, the target terminal may be a UE with poor communication status in the range of the target cell.
Preferably, the target terminal is an edge user terminal in an overlapping coverage area.
Specifically, in the case that it is known through the determination instep 101 that the access of the target cell needs to be controlled, the apparatus for adjusting the cell coverage may perform three types of methods for adjusting the cell coverage.
Optionally, the apparatus for adjusting the cell coverage may adjust a target cell related parameter, that is, a first target parameter, change a reselection condition of the target cell, so that the target terminal performs cell camping or cell releasing according to the changed reselection condition, so as to control the target terminal to access the target cell.
Optionally, the device for adjusting the cell coverage may obtain a target terminal related parameter, that is, a second target parameter, and may perform filtering processing on the access terminal according to the second target parameter, so that the target terminal performs cell residence or cell release according to a result after the filtering processing, so as to control the target terminal to access the target cell.
Optionally, the apparatus for adjusting a cell coverage may adjust a first target parameter of the target cell and obtain a second target parameter of the target terminal, and may filter the access terminal according to the second target parameter while changing a reselection condition of the target cell, so that the target terminal performs cell camping or cell releasing according to a combined result of the two determinations, so as to control access of the target terminal to the target cell.
The first target parameter is a relevant parameter of the cell, and is used for ensuring that only terminals within a certain range of the cell meet reselection criteria and can access the cell. The first target parameter may include at least one of a minimum reception level, a cell nominal power, and the like, and the embodiment of the present invention is not particularly limited.
The second target parameter is a relevant parameter of the UE, and is used to filter the UE in the coverage area, so that only the terminal meeting the specific condition can access the cell. The second target parameter may include at least one of Timing Advance (TA), Reference Signal Receiving Power (RSRP), and other parameters, which is not specifically limited in the embodiment of the present invention.
The embodiment of the invention is based on that when the cell reselection is carried out, the user terminal meets or does not meet the cell reselection condition by adjusting the cell related parameters, the cell is prompted to be reselected to the cell or other cells, which is equivalent to enlarging or reducing the coverage area of the cell, and/or the access of the user terminal is controlled by acquiring the user terminal related parameters of the accessed cell, the user terminal is accessed to the cell or released to an adjacent cell according to the cell coverage area, which is equivalent to adjusting the cell coverage area, and the cell access can be controlled without affecting the communication quality of the whole cell, which is equivalent to adjusting the cell area to control the access of the edge user terminal. Further, the interference of the neighboring cell to the target cell in the overlapping area can be reduced.
On the basis of any of the above embodiments, the first target parameter includes: minimum received level and/or cell nominal power.
Specifically, instep 102, the first target parameter is set to one or more of the cell-related parameters such as the minimum receive level (q-RxLevMin), the cell nominal power (p0), etc.
Preferably, the first target parameter is set to a minimum reception level and/or a cell nominal power.
Fig. 2 is a schematic diagram of coverage of neighboring cells provided by the present invention. As shown in fig. 2, the process of the user terminal residing in thecell 1, adjusting the first target parameter of thecell 1, and controlling the access of the target terminal to the target cell is as follows:
optionally, the means for adjusting the cell coverage adjusts the minimum reception level of the target cell such that the reselection criterion ofcell 1 changes. The smaller the parameter configuration is, the lower the reception level standard of the corresponding reselection criterion is, the easier the user terminal meets the reselection criterion, so that the user terminal with a longer distance can be accessed to thecell 1, which is equivalent to enlarging the coverage area of thecell 1. Similarly, the larger the parameter configuration is, the higher the reception level standard of the corresponding reselection criterion is, the harder the user terminal meets the reselection criterion, and only the user terminal with a short distance can access thecell 1, which is equivalent to reducing the coverage area of thecell 1.
Optionally, the apparatus for adjusting the cell coverage adjusts the cell nominal power of the target cell, so that the uplink limitation of the ue in the coverage ofcell 1 changes. The smaller the parameter configuration is, the smaller the uplink access power of the user terminal is, and the more difficult the user terminal is to access thecell 1, which is equivalent to reducing the coverage area of thecell 1. Similarly, the larger the parameter configuration is, the larger the uplink access power of the user terminal is, the easier the user terminal is to access thecell 1, which is equivalent to reducing the coverage of thecell 1.
Optionally, the apparatus for adjusting the cell coverage adjusts the minimum receiving level and the cell nominal power of the target cell, so that the minimum receiving level is increased, and the cell nominal power is decreased, then the user terminal does not satisfy the reselection condition in thecell 1, and accesses the cell 2, which is equivalent to reducing the coverage of thecell 1, and expanding the coverage of the cell 2, so that the edge user in the repeated coverage only accesses the cell 2, and is not affected by thecell 1.
Optionally, the apparatus for adjusting the cell coverage adjusts the minimum receiving level and the cell nominal power of the target cell, so that the minimum receiving level becomes smaller, and the cell nominal power becomes larger, and then the user terminal satisfies the reselection condition in thecell 1 and continues to reside in thecell 1, which is equivalent to enlarging the coverage of thecell 1, and reducing the coverage of the cell 2, so that the edge user in the repeated coverage only accesses thecell 1, and is not affected by the cell 2.
The embodiment of the invention enables the terminal to meet or not meet the cell reselection condition based on setting the cell parameter to be adjusted to the minimum receiving level and/or the cell nominal power, and prompts the terminal to reselect the cell or other cells, which is equivalent to enlarging or reducing the coverage area of the cell, and is equivalent to realizing the adjustment of the cell range to control the access of the edge user terminal under the condition of not influencing the communication quality of the whole cell. Further, the interference of the neighboring cell to the target cell in the overlapping area can be reduced.
On the basis of any of the above embodiments, controlling the target terminal to access the target cell based on the second target parameter of the target terminal specifically includes: and acquiring a second target parameter of the target terminal.
Specifically, the device for adjusting the cell coverage obtains a second target parameter of the target terminal within the coverage of the target cell.
And under the condition that the second target parameter meets the second target condition, keeping the target terminal to access the target cell.
The second target condition is a determination condition set with respect to the second target parameter according to the coverage area of the target cell.
Specifically, the device for adjusting the cell coverage determines the target cell coverage area according to the target cell networking environment, and sends an instruction for setting a second target condition to the target cell. And filtering the accessed target terminal according to the acquired second target parameter and a second target condition.
And under the condition that the obtained second target parameter meets a second target condition, the filtered target terminal can be normally accessed into the target cell.
The embodiment of the invention is based on obtaining a second target parameter of the target terminal and setting a second target condition according to the coverage area of the target cell for judgment, if the second target condition is met, the target terminal can reside in the target cell, which is equivalent to enlarging the coverage area of the target cell, the access of the terminal is controlled, and the cell range can be adjusted to control the access of the edge user terminal without influencing the communication quality of the whole cell. Further, the interference of the neighboring cell to the target cell in the overlapping area can be reduced.
On the basis of any of the above embodiments, after obtaining the second target parameter of the target terminal, the method further includes: and under the condition that the second target parameter does not meet the second target condition, releasing the target terminal to the adjacent cell.
Specifically, the device for adjusting the cell coverage determines the target cell coverage area according to the target cell networking environment, and sends an instruction for setting a second target condition to the target cell. And filtering the accessed target terminal according to the acquired second target parameter and a second target condition.
And under the condition that the acquired second target parameter does not meet the second target condition, the filtered target terminal cannot normally access the target cell, and the target terminal is released to an adjacent cell.
The embodiment of the invention is based on obtaining a second target parameter of the target terminal, setting a second target condition according to the coverage area of the target cell for judgment, if the second target condition is not met, releasing the target terminal to the adjacent cell, which is equivalent to reducing the coverage area of the target cell, controlling the access of the terminal in the adjacent cell, and realizing the adjustment of the cell range to control the access of the edge user terminal without influencing the communication quality of the whole cell. Further, the interference of the neighboring cell to the target cell in the overlapping area can be reduced.
On the basis of any of the above embodiments, the second target parameter comprises a timing advance.
Specifically, instep 102, the second target parameter is set as one or more of the timing advance, the reference signal received power, and other terminal related parameters.
Preferably, the second target parameter is set as a timing advance.
The second target parameter satisfying the second target condition includes: the timing advance is less than the timing advance threshold.
The timing advance threshold (TA _ threshold) refers to a threshold value related to the timing advance.
Specifically, the device for adjusting the cell coverage obtains the timing advance of the UE according to the coverage of the target cell, and determines whether the UE accesses the target cell by combining a preset second target condition.
The second target condition is a decision condition established according to a different second target parameter, that is, the second target condition is set when the timing advance is smaller than the timing advance threshold.
The timing advance can reflect the distance between the target terminal and the target cell, and the greater the TA is, the farther the target terminal is from the target cell. Similarly, the smaller the TA, the closer the target terminal is to the target cell.
Fig. 2 is a schematic diagram of coverage of neighboring cells provided by the present invention. As shown in fig. 2, the user terminal resides in thecell 1, and based on the second target parameter of the target terminal, the process of controlling the target terminal to access the target cell is as follows:
according to the networking environment of thecell 1, determining the coverage area of thecell 1, and setting a TA threshold (TA _ threshold) of a terminal accessing thecell 1 in the coverage area. And filtering the accessed target terminal by a TA threshold (TA _ threshold) according to the acquired TA.
Wherein, under the condition that the TA of the target terminal satisfies TA < TA _ threshold, the target terminal can normally access to thecell 1 after filtering.
And under the condition that the TA of the target terminal does not meet the TA < TA _ threshold, releasing the target terminal to the public network or the adjacent cell 2 after filtering.
The embodiment of the invention filters the target terminal in the coverage area based on the condition that the timing advance for obtaining the access of the target terminal is smaller than the timing advance threshold, so that the target terminal meeting the condition can be accessed into the target cell, and the cell range can be adjusted equivalently to control the access of the edge user terminal without influencing the communication quality of the whole cell. Further, the interference of the neighboring cell to the target cell in the overlapping area can be reduced.
On the basis of any of the above embodiments, the second target parameter includes an uplink energy.
Specifically, instep 102, the second target parameter is set as one or more of the timing advance, the reference signal received power, and other terminal related parameters.
Preferably, the second target parameter is set as the uplink energy.
The second target parameter satisfying the second target condition includes: the uplink energy is greater than the uplink energy threshold.
It should be noted that the uplink energy threshold (RSRP _ threshold) refers to a critical value related to uplink energy.
Specifically, the device for adjusting the cell coverage obtains the uplink energy of the UE according to the coverage of the target cell, and determines whether the UE accesses the target cell by combining a preset second target condition.
The second target condition is a decision condition established according to a second different target parameter, that is, the second target condition is set when the uplink energy is greater than the uplink energy threshold.
The uplink energy can reflect the distance between the target terminal and the target cell, and the larger the RSRP is, the closer the target terminal is to the target cell. Similarly, the smaller the RSRP, the farther the target terminal is from the target cell.
Fig. 2 is a schematic diagram of coverage of neighboring cells provided by the present invention. As shown in fig. 2, the user terminal resides in thecell 1, and based on the second target parameter of the target terminal, the process of controlling the target terminal to access the target cell is as follows:
according to the networking environment of thecell 1, determining the coverage area of thecell 1, and setting an RSRP threshold (RSRP _ threshold) of a terminal accessing thecell 1 in the coverage area. And filtering the accessed target terminal by using an RSRP threshold (RSRP _ threshold) according to the acquired RSRP.
And under the condition that the RSRP of the target terminal meets the RSRP > RSRP _ threshold, the target terminal can normally access thecell 1 after filtering.
And releasing the target terminal to the public network or the adjacent cell 2 after filtering under the condition that the RSRP of the target terminal does not meet the condition that the RSRP is less than the RSRP _ threshold.
The embodiment of the invention filters the target terminal in the coverage area based on the condition that the uplink energy accessed by the target terminal is acquired and the uplink energy is larger than the uplink energy threshold, so that the target terminal meeting the condition can be accessed into the target cell, and the cell range can be adjusted equivalently to control the access of the edge user terminal without influencing the communication quality of the whole cell. Further, the interference of the neighboring cell to the target cell in the overlapping area can be reduced.
On the basis of any of the above embodiments, the second target parameter includes a timing advance and an uplink energy.
Specifically, instep 102, the second target parameter is set as one or more of the terminal related parameters such as timing advance, reference signal received power, etc.
Preferably, the second target parameter is set as timing advance and uplink energy.
The second target parameter satisfying the second target condition includes: the timing advance is smaller than a timing advance threshold, and the uplink energy is larger than an uplink energy threshold.
Specifically, the device for adjusting the cell coverage obtains the timing advance and the uplink energy of the UE according to the coverage of the target cell, and determines whether the UE accesses the target cell by combining a preset second target condition.
The second target condition is a decision condition established according to a different second target parameter, that is, the second target condition is set when the timing advance is smaller than the timing advance threshold and the uplink energy is larger than the uplink energy threshold.
The timing advance and the uplink energy can both reflect the distance between the target terminal and the target cell, and the smaller the TA is and the larger the RSRP is, the closer the target terminal is to the target cell. Similarly, the larger the TA and the smaller the RSRP, the farther the target terminal is from the target cell.
Fig. 2 is a schematic diagram of coverage of neighboring cells provided by the present invention. As shown in fig. 2, the user terminal resides in thecell 1, and based on the second target parameter of the target terminal, the process of controlling the target terminal to access the target cell is as follows:
according to the networking environment of thecell 1, determining the coverage area of thecell 1, and setting a TA threshold (TA _ threshold) and an RSRP threshold (RSRP _ threshold) of a terminal accessing thecell 1 in the coverage area. And filtering the accessed target terminal by using a TA threshold (TA _ threshold) and an RSRP threshold (RSRP _ threshold) respectively according to the acquired TA and the acquired RSRP.
And under the condition that TA and RSRP of the target terminal meet TA < TA _ threshold and RSRP > RSRP _ threshold, the target terminal can normally access thecell 1 after filtering.
And releasing the target terminal to the public network or the adjacent cell 2 after filtering under the condition that the TA and the RSRP of the target terminal do not meet TA < TA _ threshold and RSRP < RSRP _ threshold.
The embodiment of the invention filters the target terminal in the coverage area based on the condition that the timing advance and the uplink energy for accessing the target terminal are acquired, the timing advance is smaller than the timing advance threshold, and the uplink energy is larger than the uplink energy threshold, so that the target terminal meeting the condition can be accessed into the target cell, and the cell range can be adjusted equivalently to control the access of the edge user terminal under the condition that the communication quality of the whole cell is not influenced. Further, the interference of the neighboring cell to the target cell in the overlapping area can be reduced.
Fig. 3 is a schematic structural diagram of an apparatus for adjusting a cell coverage provided in the present invention. Based on the content of any of the above embodiments, as shown in fig. 3, the apparatus includes: a determiningmodule 310 and areselecting module 320, wherein:
a determiningmodule 310 is configured to determine whether the target cell satisfies a first target condition.
Anadjusting module 320, configured to adjust a first target parameter of the target cell and/or control access of the target terminal to the target cell based on a second target parameter of the target terminal, when the target cell meets the first target condition.
Specifically, thedetermination module 310 and theadjustment module 320 are electrically connected in sequence.
The determiningmodule 310 obtains an evaluation parameter for characterizing a condition of the target cell, and determines, in combination with the first target condition, whether to adjust a coverage area of the target cell, so as to control cell access of the ue.
The adjustingmodule 320 may perform three types of methods for adjusting the cell coverage, that is, a method for adjusting the cell coverage based on adjusting a first target parameter, a method for adjusting the cell coverage based on acquiring a second target parameter, and a method for adjusting the cell coverage based on adjusting the first target parameter and acquiring the second target parameter, in case that the determiningmodule 310 determines that the adjustment of the coverage of the target cell is needed.
On the basis of any of the above embodiments, the adjustingmodule 320 includes a first adjusting unit, wherein the first target parameter of the first adjusting unit includes: minimum received level and/or cell nominal power.
On the basis of any of the above embodiments, the adjustingmodule 320 includes an obtaining unit and an accessing unit, where:
and the acquisition unit is used for acquiring a second target parameter of the target terminal.
And the access unit is used for keeping the target terminal accessed to the target cell under the condition that the second target parameter meets the second target condition.
On the basis of any of the above embodiments, the adjustingmodule 320 further includes a releasing unit after the obtaining unit, wherein:
and the releasing unit is used for releasing the target terminal to the adjacent cell under the condition that the second target parameter does not meet the second target condition.
On the basis of any of the above embodiments, the adjustingmodule 320 includes a second adjusting unit, wherein the second target parameter of the second adjusting unit includes a timing advance.
The second target parameter satisfying the second target condition includes: the timing advance is less than the timing advance threshold.
On the basis of any of the above embodiments, the adjustingmodule 320 includes a second adjusting unit, wherein the second target parameter of the second adjusting unit further includes uplink energy.
The second target parameter satisfying the second target condition includes: the uplink energy is greater than the uplink energy threshold.
On the basis of any of the above embodiments, the adjustingmodule 320 includes a second adjusting unit, where the second target parameter of the second adjusting unit further includes a timing advance and an uplink energy.
The second target parameter satisfying the second target condition includes: the timing advance is smaller than a timing advance threshold, and the uplink energy is larger than an uplink energy threshold.
The device for adjusting the cell coverage provided in the embodiment of the present invention is configured to execute the method for adjusting the cell coverage according to the present invention, and an implementation manner of the device for adjusting the cell coverage is consistent with an implementation manner of the method for adjusting the cell coverage provided in the present invention, and the same beneficial effects can be achieved, and details are not repeated here.
The embodiment of the invention is based on that when the cell reselection is carried out, the cell related parameters are adjusted to enable the user terminal to meet or not meet the cell reselection conditions, the user terminal is prompted to be reselected to the cell or other cells, which is equivalent to enlarging or reducing the coverage area of the cell, and/or the user terminal is accessed to the cell or released to an adjacent cell according to the cell coverage area by obtaining the user terminal related parameters of the accessed cell, which is equivalent to adjusting the cell coverage area, the access of the user terminal is controlled, and the cell area can be adjusted to control the access of the edge user terminal without affecting the communication quality of the whole cell. Further, the interference of the neighboring cell to the target cell in the overlapping area can be reduced.
Fig. 4 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 4: a processor (processor)410, a communication interface (communications interface)420, a memory (memory)430 and acommunication bus 440, wherein theprocessor 410, the communication interface 420 and thememory 430 are in communication with each other via thecommunication bus 440. Theprocessor 410 may invoke logic instructions in thememory 430 to perform a method of adjusting cell coverage, the method comprising: judging whether the target cell meets a first target condition; and under the condition that the target cell meets the first target condition, adjusting a first target parameter of the target cell, and/or controlling the access of the target terminal to the target cell based on a second target parameter of the target terminal.
In addition, the logic instructions in thememory 430 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the method for adjusting cell coverage provided by the above methods, the method comprising: judging whether the target cell meets a first target condition; and under the condition that the target cell meets the first target condition, adjusting a first target parameter of the target cell, and/or controlling the access of the target terminal to the target cell based on a second target parameter of the target terminal.
In yet another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program being implemented by a processor to perform the methods for adjusting cell coverage provided above, the methods including: judging whether the target cell meets a first target condition; and under the condition that the target cell meets the first target condition, adjusting a first target parameter of the target cell, and/or controlling the access of the target terminal to the target cell based on a second target parameter of the target terminal.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A method for adjusting cell coverage, comprising:
judging whether the target cell meets a first target condition or not;
under the condition that the target cell meets the first target condition, adjusting a first target parameter of the target cell, and controlling the target terminal to access the target cell based on a second target parameter of a target terminal;
the target terminal is an edge user terminal in an overlapping coverage area;
the edge user terminal is a user terminal of which the SINR meets a first target condition;
the first target condition is that the signal to interference plus noise ratio of the user terminal obtained through the SRS is smaller than a preset discrimination threshold;
the first target parameter includes: a minimum receive level and/or a cell nominal power;
the second target parameter includes: timing advance and reference signal receiving power.
2. The method according to claim 1, wherein the controlling the access of the target terminal to the target cell based on the second target parameter of the target terminal specifically includes:
acquiring the second target parameter of the target terminal;
and under the condition that the second target parameter meets a second target condition, keeping the target terminal to be accessed to the target cell.
3. The method of claim 2, wherein after the obtaining the second target parameter of the target terminal, the method further comprises:
and releasing the target terminal to the adjacent cell under the condition that the second target parameter does not meet a second target condition.
4. The method of adjusting cell coverage according to claim 2 or 3, wherein said second target parameter comprises timing advance;
the second target parameter satisfying the second target condition includes: the timing advance is less than a timing advance threshold.
5. The method of claim 2 or 3, wherein the second target parameter comprises uplink energy;
the second target parameter satisfying the second target condition includes: the uplink energy is greater than an uplink energy threshold.
6. The method of claim 2 or 3, wherein the second target parameter comprises timing advance and uplink energy;
the second target parameter satisfying the second target condition includes: the timing advance is smaller than a timing advance threshold, and the uplink energy is larger than an uplink energy threshold.
7. An apparatus for adjusting cell coverage, comprising:
the judging module is used for judging whether the target cell meets a first target condition;
an adjusting module, configured to adjust a first target parameter of the target cell when the target cell meets the first target condition, and control access of the target terminal to the target cell based on a second target parameter of the target terminal;
the target terminal is an edge user terminal in an overlapping coverage area;
the edge user terminal is a user terminal of which the SINR meets a first target condition;
the first target condition is that the signal to interference plus noise ratio of the user terminal obtained through the SRS is smaller than a preset discrimination threshold;
the first target parameter includes: a minimum receive level and/or a cell nominal power;
the second target parameter includes: timing advance and reference signal receiving power.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of the method of adjusting cell coverage according to any of claims 1 to 6.
9. A non-transitory computer readable storage medium, having a computer program stored thereon, wherein the computer program, when being executed by a processor, implements the steps of the method for adjusting cell coverage according to any one of claims 1 to 6.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1352497A (en)* | 2000-11-07 | 2002-06-05 | 华为技术有限公司 | A method of load balancing preprocessing in a mobile communication system |
| CN103167557A (en)* | 2013-03-19 | 2013-06-19 | 东南大学 | A Load Balancing Method Based on Virtual Cell Breathing in LTE-A System |
| WO2014153745A1 (en)* | 2013-03-27 | 2014-10-02 | 富士通株式会社 | Transmit power determining method and apparatus and communications system |
| CN104168637A (en)* | 2014-08-13 | 2014-11-26 | 京信通信系统（中国）有限公司 | Power adjustment method, device and system |
| CN109842899A (en)* | 2017-11-28 | 2019-06-04 | 中国移动通信集团浙江有限公司 | A kind of adjacent cell interference method and device |
| CN110430530A (en)* | 2019-07-30 | 2019-11-08 | 武汉虹信通信技术有限责任公司 | A kind of network detects yard localization method and device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109302709B (en)* | 2018-09-14 | 2022-04-05 | 重庆邮电大学 | Mobile edge computing-oriented vehicle networking task unloading and resource allocation strategy |
- 2021
- 2021-06-30CNCN202110736572.6Apatent/CN113473484B/enactiveActive
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1352497A (en)* | 2000-11-07 | 2002-06-05 | 华为技术有限公司 | A method of load balancing preprocessing in a mobile communication system |
| CN103167557A (en)* | 2013-03-19 | 2013-06-19 | 东南大学 | A Load Balancing Method Based on Virtual Cell Breathing in LTE-A System |
| WO2014153745A1 (en)* | 2013-03-27 | 2014-10-02 | 富士通株式会社 | Transmit power determining method and apparatus and communications system |
| CN104168637A (en)* | 2014-08-13 | 2014-11-26 | 京信通信系统（中国）有限公司 | Power adjustment method, device and system |
| CN109842899A (en)* | 2017-11-28 | 2019-06-04 | 中国移动通信集团浙江有限公司 | A kind of adjacent cell interference method and device |
| CN110430530A (en)* | 2019-07-30 | 2019-11-08 | 武汉虹信通信技术有限责任公司 | A kind of network detects yard localization method and device |
Non-Patent Citations (1)
| Title |
|---|
| LTE网络覆盖优化分析;程楠等;《电信工程技术与标准化》;20180711(第07期);全文* |
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