CN112637917A - 5G network frequency point switching method and system - Google Patents
5G network frequency point switching method and system Download PDFInfo
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- CN112637917A CN112637917A CN202011547678.3A CN202011547678A CN112637917A CN 112637917 A CN112637917 A CN 112637917A CN 202011547678 A CN202011547678 A CN 202011547678A CN 112637917 A CN112637917 A CN 112637917A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000013507 mapping Methods 0.000 claims description 6
- 238000012935 Averaging Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 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
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
Abstract
The invention discloses a 5G network frequency point switching method, which comprises the following steps: when any wireless module is connected with a preset network, the preset network is accessed through the resident frequency point of the wireless module, and the preset network comprises a plurality of frequency points; establishing connection between the wireless module and the plurality of frequency points respectively; and obtaining the frequency point with the strongest signal to obtain the optimal frequency point, and executing cell reselection operation. The wireless module of the invention automatically connects a plurality of frequency points and takes the frequency point with the strongest signal as the best frequency point, thereby preventing the conditions of weaker connection signal and unstable wireless connection and greatly reducing the working intensity of manual debugging. The invention also discloses a frequency point switching system adopting the method.
Description
Technical Field
The invention relates to the technical field of water meter internet of things, in particular to a 5G network frequency point switching method and system.
Background
Along with the progress of science and technology, more and more life electrical apparatus have added the thing networking function, like the water gauge, and the water gauge that has the thing networking function can improve managers' work efficiency greatly.
The water meter with the function of internet of things is generally internally provided with a wireless module, such as an NB-IoT module, when the water meter is connected to a base station, the wireless module can be connected with the network of the community, and the water meter can be remotely controlled by connecting the water meter to the network.
In practical application, a wireless module of the water meter needs to be manually accessed into a network, a plurality of networks exist in the place where the water meter is installed, only one network can be manually selected for connection, and the network is poor in possible signal, so that the experience of remote control is poor.
Disclosure of Invention
The invention aims to provide a 5G network frequency point switching method capable of automatically acquiring an optimal frequency point.
A5G network frequency point switching method comprises the following steps:
when any wireless module is connected with a preset network, the preset network is accessed through the resident frequency point of the wireless module, and the preset network comprises a plurality of frequency points;
establishing connection between the wireless module and the plurality of frequency points respectively;
and obtaining the frequency point with the strongest signal to obtain the optimal frequency point, and executing cell reselection operation.
The invention has the beneficial effects that: the wireless module of the invention automatically connects a plurality of frequency points and takes the frequency point with the strongest signal as the best frequency point, thereby preventing the conditions of weaker connection signal and unstable wireless connection and greatly reducing the working intensity of manual debugging.
In addition, the method for switching the frequency point of the 5G network provided by the invention can also have the following additional technical characteristics:
further, the step of establishing connection between the wireless module and the plurality of frequency points respectively comprises:
establishing mapping information for all the frequency points and corresponding generating equipment;
acquiring first position information of the wireless module and second position information of all the generating equipment, and acquiring distance information according to the first position information and the second position information;
and acquiring the distance information with the value in a preset range, acquiring the corresponding frequency point according to the mapping information to obtain a close range frequency point, and respectively establishing connection between the wireless module and the close range frequency points.
Further, the step of obtaining the frequency point with the strongest signal includes:
establishing connection with all the close-range frequency points in sequence through the wireless module to obtain a signal strength value during connection;
and obtaining the close-range frequency point corresponding to the maximum value in the signal intensity values to obtain the optimal frequency point.
Further, the wireless module is sequentially connected with all the close-range frequency points, and the step of obtaining the signal strength value during connection comprises the following steps:
establishing connection between the wireless module and each close-range frequency point in sequence, wherein the time length for keeping the connection state each time is designated time length;
and continuously acquiring the signal intensity within the duration of the specified duration, and averaging the acquired signal intensity to obtain the signal intensity value.
Further, the step of performing a cell reselection operation comprises:
acquiring a cell where the optimal frequency point is located to obtain a reselected cell;
and changing the connection information of the wireless module into network connection with the reselected cell.
Further, after the step of changing the connection information of the wireless module to the network connection with the reselected cell, the method further includes:
marking the reselected cell to obtain an optimal mark, and connecting the network of the reselected cell according to the optimal mark when another wireless module establishes connection with the preset network.
Further, the method further comprises:
acquiring the frequency points with the signal intensity similar to that of the optimal frequency point to obtain a plurality of alternative frequency points;
and when the signal intensity of the optimal frequency point is reduced by 40%, acquiring the frequency point with the strongest signal again between the optimal frequency point and the multiple alternative frequency points to obtain an optimized frequency point, and controlling the wireless module to establish connection with the optimized frequency point.
Another objective of the present invention is to provide a frequency point switching system using the above method, including:
the access module is used for accessing a preset network through a resident frequency point of a wireless module when any wireless module is connected with the preset network, and the preset network comprises a plurality of frequency points;
the multi-frequency point connection module is used for respectively establishing connection between the wireless module and the plurality of frequency points;
and the cell reselection module is used for obtaining the frequency point with the strongest signal, obtaining the best frequency point and executing cell reselection operation.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic flow chart of a method for switching frequency points of a 5G network according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of obtaining close-range frequency points according to the first embodiment of the present invention;
fig. 3 is a block diagram of a frequency point switching system according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1 and fig. 2, a first embodiment of the invention provides a method for switching frequency points of a 5G network, which includes the following steps.
S1, when any wireless module is connected with a preset network, the preset network is accessed through the resident frequency point of the wireless module, and the preset network comprises a plurality of frequency points.
In this embodiment, the wireless module is an NB-IoT module, which is applied to the internet of things of the water meter and is used for wirelessly connecting the water meter with the network of the base station.
It should be noted that when the wireless module accesses the base station, there may be multiple frequency points in the current NB-IoT network, and the module is accessed by default according to the camping frequency point.
It can be understood that the resident frequency point can be understood as a preset frequency point, and when the wireless module enters the connectable range of the resident frequency point and is not connected with other frequency points, the wireless module can be directly connected with the resident frequency point, so that the water meter is connected to the network of the base station.
And S2, respectively establishing connection between the wireless module and the plurality of frequency points.
It should be noted that, because there are networks of multiple base stations at the location where the water meter is located, and there are differences in network signals of each base station, there are many reasons for affecting the network signals, such as distance, quality of base station equipment, large obstacles, and weather factors.
In order to achieve the best wireless connection effect of the water meter, a base station network with the strongest and most stable signal needs to be selected, and under the general condition, the frequency point needs to be switched manually and repeatedly to obtain the best frequency point.
Referring to fig. 2, in this embodiment, the step of establishing the connection between the wireless module and the plurality of frequency points respectively includes:
s21, establishing mapping information for all the frequency points and corresponding generating equipment;
s22, acquiring first position information of the wireless module and second position information of all the generating equipment, and acquiring distance information according to the first position information and the second position information;
s23, obtaining the distance information with the value in a preset range, obtaining the corresponding frequency point according to the mapping information to obtain a close range frequency point, and respectively establishing connection between the wireless module and the close range frequency points.
In the present embodiment, the value of the distance information is 200 meters. In other embodiments, the distance information may be selected according to actual conditions.
It is understood that the short-distance frequency points are all frequency points within 200M of the point M of the wireless module, such as A, B, C in fig. 2, and beyond 200M, such as D, E, F, are not considered.
Since there are a plurality of network base stations in the area where the water meter is located, the signal is inevitably weak if the area is far from the water meter, and the area may not be considered. The position coordinates of each base station can be preset or can be acquired from a position database on site.
And S3, obtaining the frequency point with the strongest signal to obtain the optimal frequency point, and executing cell reselection operation.
Specifically, the step of obtaining the frequency point with the strongest signal includes:
s31, sequentially establishing connection with all the close-range frequency points through the wireless module to obtain a signal strength value during connection;
and S32, obtaining the close range frequency point corresponding to the maximum value in the signal intensity value to obtain the optimal frequency point.
It can be understood that the probability of errors in obtaining the optimal frequency point can be reduced by screening in the close-distance frequency points.
In addition, the wireless module is sequentially connected with all the close-range frequency points, and the step of obtaining the signal strength value during connection comprises the following steps:
s311, the wireless module is sequentially connected with each close-range frequency point, and the time length for keeping the connection state each time is set as a specified time length;
s312, continuously acquiring the signal intensity within the duration of the specified duration, and averaging the acquired signal intensity to obtain the signal intensity value.
It can be understood that the signal strength is generally floating, for example, from-50 dbm to 40dbm, and if only the instantaneous signal strength is measured, a certain error will inevitably occur, that is, the instantaneous signal strength is good and does not represent that the continuous signal strength is good and stable, which may result in the system selecting a frequency point with poor signal quality.
Specifically, the step of performing the cell reselection operation includes:
s33, acquiring a cell where the optimal frequency point is located to obtain a reselected cell;
and S34, changing the connection information of the wireless module into network connection with the reselected cell.
The wireless module has the advantages that the wireless module can automatically connect a plurality of frequency points, and the frequency point with the strongest signal is used as the optimal frequency point, so that the conditions of weaker connection signal and unstable wireless connection are prevented, and the working intensity of manual debugging is greatly reduced.
Further, the step of changing the connection information of the wireless module to the network connection with the reselected cell further includes:
and S4, marking the reselected cell to obtain an optimal mark, and connecting the network of the reselected cell according to the optimal mark when the other wireless module establishes connection with the preset network.
It should be noted that each cell is provided with one base station, each base station corresponds to one cell, and the optimal frequency point of the reselected cell can be directly obtained when the water meter is re-accessed in the same area through the optimal mark.
Still further, the method further comprises:
s5, acquiring the frequency point close to the signal intensity of the optimal frequency point to obtain a plurality of alternative frequency points;
and S6, when the signal intensity of the optimal frequency point is reduced by 40%, acquiring the frequency point with the strongest signal again between the optimal frequency point and the multiple alternative frequency points to obtain an optimized frequency point, and controlling the wireless module to establish connection with the optimized frequency point.
It can be understood that, because there are many factors affecting the signal strength, a frequency point does not represent that the signal quality can be kept good even though the signal quality is good at present, some alternative frequency points need to be set, and especially when the signal strength of the current connection is detected to be greatly reduced, the frequency point switching operation can be executed.
In addition, in some cases, there may be a case where frequency point signals of multiple cells are weakened at the same time, so that, in the embodiment, when the frequency point is switched, the frequency point with the strongest signal is obtained again between the optimal frequency point and multiple candidate frequency points, so as to obtain an optimized frequency point, which is the currently optimal frequency point, even if the signal quality of all frequency points nearby is poor.
Referring to fig. 3, a second embodiment of the present invention provides a frequency point switching system using the above method, including:
the access module is used for accessing a preset network through a resident frequency point of a wireless module when any wireless module is connected with the preset network, and the preset network comprises a plurality of frequency points;
the multi-frequency point connection module is used for respectively establishing connection between the wireless module and the plurality of frequency points;
and the cell reselection module is used for obtaining the frequency point with the strongest signal, obtaining the best frequency point and executing cell reselection operation.
The wireless module has the advantages that the wireless module can automatically connect a plurality of frequency points, and the frequency point with the strongest signal is used as the optimal frequency point, so that the conditions of weaker connection signal and unstable wireless connection are prevented, and the working intensity of manual debugging is greatly reduced.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A5G network frequency point switching method is characterized by comprising the following steps:
when any wireless module is connected with a preset network, the preset network is accessed through the resident frequency point of the wireless module, and the preset network comprises a plurality of frequency points;
establishing connection between the wireless module and the plurality of frequency points respectively;
and obtaining the frequency point with the strongest signal to obtain the optimal frequency point, and executing cell reselection operation.
2. The method for switching the frequency points of the 5G network according to claim 1, wherein the step of establishing the connection between the wireless module and the plurality of frequency points respectively comprises:
establishing mapping information for all the frequency points and corresponding generating equipment;
acquiring first position information of the wireless module and second position information of all the generating equipment, and acquiring distance information according to the first position information and the second position information;
and acquiring the distance information with the value in a preset range, acquiring the corresponding frequency point according to the mapping information to obtain a close range frequency point, and respectively establishing connection between the wireless module and the close range frequency points.
3. The method for switching the frequency points of the 5G network according to claim 2, wherein the step of obtaining the frequency point with the strongest signal comprises:
establishing connection with all the close-range frequency points in sequence through the wireless module to obtain a signal strength value during connection;
and obtaining the close-range frequency point corresponding to the maximum value in the signal intensity values to obtain the optimal frequency point.
4. The method for switching the frequency points of the 5G network according to claim 3, wherein the step of sequentially establishing connection with all the close-range frequency points through the wireless module to obtain the signal intensity value during connection comprises:
establishing connection between the wireless module and each close-range frequency point in sequence, wherein the time length for keeping the connection state each time is designated time length;
and continuously acquiring the signal intensity within the duration of the specified duration, and averaging the acquired signal intensity to obtain the signal intensity value.
5. The method for switching frequency points of a 5G network according to claim 1, wherein the step of performing cell reselection operation comprises:
acquiring a cell where the optimal frequency point is located to obtain a reselected cell;
and changing the connection information of the wireless module into network connection with the reselected cell.
6. The method for switching frequency points of a 5G network according to claim 5, wherein the step of changing the connection information of the wireless module to the network connection with the reselected cell further comprises:
marking the reselected cell to obtain an optimal mark, and connecting the network of the reselected cell according to the optimal mark when another wireless module establishes connection with the preset network.
7. The method for switching the frequency points of the 5G network according to claim 1, wherein the method further comprises:
acquiring the frequency points with the signal intensity similar to that of the optimal frequency point to obtain a plurality of alternative frequency points;
and when the signal intensity of the optimal frequency point is reduced by 40%, acquiring the frequency point with the strongest signal again between the optimal frequency point and the multiple alternative frequency points to obtain an optimized frequency point, and controlling the wireless module to establish connection with the optimized frequency point.
8. A frequency point switching system, comprising:
the access module is used for accessing a preset network through a resident frequency point of a wireless module when any wireless module is connected with the preset network, and the preset network comprises a plurality of frequency points;
the multi-frequency point connection module is used for respectively establishing connection between the wireless module and the plurality of frequency points;
and the cell reselection module is used for obtaining the frequency point with the strongest signal, obtaining the best frequency point and executing cell reselection operation.
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Cited By (1)
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| CN115348672A (en) * | 2022-10-20 | 2022-11-15 | 中国人民解放军国防科技大学 | Communication method, communication device, electronic equipment and storage medium |
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