CN109587764B - Automatic frequency selection method for small base station, small base station and storage medium - Google Patents
Automatic frequency selection method for small base station, small base station and storage medium Download PDFInfo
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Abstract
The invention provides a method for automatically selecting frequency of a small base station, the small base station and a storage medium, wherein the method comprises the following steps: scanning frequency points in the working frequency point list, and selecting frequency points without wireless signal coverage as a first candidate frequency point list; selecting an inter-frequency neighbor cell list of surrounding macro base stations, and determining a second candidate frequency point list; acquiring an available PCI list of each frequency point in a second candidate frequency point list, and binding the PCI with the highest priority to the corresponding frequency point; taking the part which is not coincident with the part in the second candidate frequency point list in the first candidate frequency point list as a pilot frequency candidate list, and preferentially selecting a working frequency point from the pilot frequency candidate list; and when the different-frequency candidate list is empty, taking the intersection of the first candidate frequency point list and the second candidate frequency point list as a same-frequency point list, and selecting a working frequency point from the same-frequency point list. The invention avoids same frequency interference, different frequency interference and PCI three-mode interference while the small base station normally transmits wireless signals, ensures the signal quality of the small base station and reduces the huge workload of manually configuring frequency points and PCI.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method for automatically selecting a frequency for a small base station, and a storage medium.
Background
With the rapid development of the mobile internet, the number of mobile users increases rapidly, the construction of the domestic 4G macro network is gradually finished, the mobile flow rate is increased in an explosive manner, and the main flow rate comes from the indoor environment. The current indoor coverage is just a short board, because on one hand, the carrier wave of the signal is increased to the 2Ghz frequency band from the original 900Mhz (mainly referred to as GSM900), and the large increase of the carrier frequency causes the corresponding large increase of the space loss and the building loss (the signal loss and the carrier frequency are in positive correlation), so that many indoor areas which can be originally covered by the outdoor base station become blind areas, and meanwhile, the special breathing effect of the CDMA technology adopted by 3G (namely, the coverage range of a single base station is reduced along with the increase of the traffic) also causes the reduction of the indoor signal service quality. On the other hand, whether voice or mobile data services, 70% -80% occur in indoor environments, which become the main content of the user's evaluation of the quality of service of wireless signals.
The small base station, as a base station device which is much smaller than the traditional macro station in terms of product form, transmission power, coverage and the like, has the characteristics of miniaturization, low transmission power, good controllability, intellectualization and flexible networking, and thus the small base station becomes a preferred scheme for solving indoor signal coverage. The home small base station (FAP) mainly aims at home users, and under such a situation, the FAP firstly solves the problems that the FAP can be directly used after being powered on, large signal fluctuation is not generated along with changes of surrounding environments, the number of users using an unlimited 4G flow package is increased after 4G flow rate reduction at present, various entertainment modes of a mobile phone end are increased, such as ultra-clear video playing, online real-time electronic games, network video calls and the like, and the requirements on stability and high speed of indoor 4G signals are further improved.
Chinese patent application No. 201010570452.5 discloses a frequency point selection method, a home base station, and a device, specifically, by determining the interference degree of a target base station on each frequency point, and the service load of other base stations except the target base station on each frequency point. And determining the working frequency point of the target base station according to the interference strength of the target base station on each frequency point and the service load of other base stations except the target base station on each frequency point, thereby reducing the same frequency interference among the home base station cells. The patent only relates to a frequency point selection part of a target base station, and only depends on the interference degree and the service load of the frequency point on the target base station to determine that the frequency point of the base station is incomplete, so that the same frequency interference is only reduced theoretically, the interference of different frequencies, the PCI interference and the synchronization are not involved, the complete technical support of the plug and play function of the household small base station is lacked, and the reselection of the frequency point when the wireless signal environment around the small base station is changed is not included.
The small base station in the prior art has the following defects:
(1) parameters need to be configured manually, and the situation of high error rate of equipment can be unavoidable, so that co-channel interference and PCI (peripheral component interconnect) modulo three interference are generated between signals of a small base station and signals of a current network, and the problem of signal coverage of the area is caused. If a home user who knows in the technical aspect needs to configure data of the home small base station for use, firstly, the configuration parameters of the user are very easy to cause data configuration errors, so that equipment errors are caused, further complaints of the user are increased, and the quality problem of the product is questioned. The user is then required to configure the parameters, and the user experience is reduced by such cumbersome operations.
(2) Manually configuring the frequency points of the small base station has limitations. The number of small base stations is large, and the workload of manually configuring frequency points and PCI is large and tedious. The macro base station, which is the main device forming the existing network, usually adopts manual planning to configure the frequency points and the PCIs, while the application number of the small base stations is much larger than that of the macro base stations, and if the frequency points and the PCIs are still manually planned, the workload is very large. The small base station is used for covering a wireless signal blind area of the existing network, planning needs to be set according to the specific environment of the small base station, namely configuration can be completed only after detailed testing is carried out on the site where the small base station is arranged, the application environment of the household small base station is generally a small-range environment in a household of a user, the natural environment state is stable, but due to the fact that personal wireless network signal coverage is increased under the existing large wireless network environment, the wireless network environment where the household small base station is located is complex, and the selection of the frequency point directly influences the normal use of equipment and the quality of a transmitting signal.
(3) The wireless environment of the small base station is complex and easy to change, which results in high difficulty of field test. At present, a large wireless signal network is basically deployed in a region with concentrated main population, but as the population is more and more concentrated, the size and range of a city are larger and larger, and a new wireless network system and an old wireless network system are mixed together, so that when the old network system fails or the new network system is built, the environment of a wireless network where a user is located is easy to suddenly change and is difficult to find, and therefore, if a small base station cannot timely reselect configuration parameters along with the change of the surrounding wireless network environment, the small base station cannot ensure to provide stable and high-quality signals.
Disclosure of Invention
The invention provides a method for automatically selecting frequency of a small base station, the small base station and a storage medium, aiming at solving the problem that the small base station automatically selects frequency points according to the surrounding wireless network environment so as to ensure that stable and high-quality signals are provided.
The invention is realized in this way, a method for automatically selecting frequency of small base station includes:
scanning frequency points in the working frequency point list, and selecting frequency points without wireless signal coverage as a first candidate frequency point list;
selecting an inter-frequency neighbor cell list of macro base stations around the small base station, and determining a second candidate frequency point list;
acquiring an available PCI list of each frequency point in the second candidate frequency point list, and binding the PCI with the highest priority in the available PCI list to the corresponding frequency point;
taking the part which is not coincident with the part in the second candidate frequency point list in the first candidate frequency point list as a pilot frequency candidate list, and preferentially selecting a working frequency point from the pilot frequency candidate list;
and when the different-frequency candidate list is empty, taking the intersection of the first candidate frequency point list and the second candidate frequency point list as an identical-frequency point list, and selecting a working frequency point from the identical-frequency point list.
Further, the selecting a list of inter-frequency neighboring cells of macro base stations around the small base station and determining a second candidate frequency point list specifically includes:
resolving SIB5 messages transmitted by a macro base station around the small base station, and acquiring an inter-frequency neighbor list of the macro base station;
and if signals of a plurality of macro base stations exist around the frequency band, selecting an inter-frequency neighbor list of signals of the macro base stations with the strongest signals, and taking the intersection of the selected inter-frequency neighbor list as a second candidate frequency point list.
Furthermore, in the second candidate frequency point list, the frequency points are arranged from weak to strong according to the signal intensity.
Further, the obtaining of the available PCI list of each frequency point in the second candidate frequency point list and the binding of the PCI with the highest priority in the available PCI list to the corresponding frequency point specifically include:
extracting the corresponding frequency point from the numerical value 0-503 aiming at each frequency point in the second candidate frequency point list
Using unequal numerical values of PCImod3 as available PCIs to obtain an available PCI list of each frequency point;
performing PCI distribution on each frequency point in the second candidate frequency point list based on the available PCI list;
and binding the PCI with the highest priority to the corresponding frequency point according to the principle that the larger the numerical value is, the higher the priority is.
Furthermore, the preferentially selecting the working frequency point from the pilot frequency candidate list by using the non-coincident part of the first candidate frequency point list and the second candidate frequency point list as the pilot frequency candidate list specifically includes:
and taking the part which is not coincident with the part in the second candidate frequency point list in the first candidate frequency point list as a pilot frequency candidate list, and preferentially selecting the working frequency point according to the principle that the higher the RSRP is, the higher the priority is or the principle that the closer the position is, the higher the priority is.
Further, when the different-frequency candidate list is empty, taking an intersection of the first candidate frequency point list and the second candidate frequency point list as an identical-frequency point list, and selecting a working frequency point from the identical-frequency point list specifically includes:
taking the intersection of the first candidate frequency point list and the second candidate frequency point list as a same-frequency point list;
if the same-frequency point list is empty, randomly selecting one frequency point from the first candidate frequency point list as a working frequency point, and selecting the maximum value from the numerical values of 0-503 as the PCI corresponding to the working frequency point, wherein the working frequency point works in an island mode;
and otherwise, selecting the frequency point with the weakest signal in the second candidate frequency point list from the same frequency point list as the working frequency point.
Still further, the method further comprises:
and judging whether to reselect the working frequency point or not according to the signal quality of all terminals connected to the small base station.
Further, the determining whether to reselect the operating frequency point according to the signal quality of all terminals connected to the small cell specifically includes:
taking the PCI value bound with the working frequency point as the PCI corresponding to the frequency point of the small base station, and periodically collecting data reflecting the signal quality condition of all terminals connected to the small base station;
averaging all collected data;
and if the average value is lower than the set threshold value, executing next scanning of the frequency points in the working frequency point list so as to reselect the working frequency points.
The invention also provides a small base station which comprises a memory, a processor and a small base station automatic frequency selection program which is stored on the memory and can run on the processor, wherein the small base station automatic frequency selection program realizes the steps of the method for automatically selecting the frequency of the small base station when being executed by the processor.
The invention also provides a computer readable storage medium, on which a small cell automatic frequency selection program is stored, and when the small cell automatic frequency selection program is executed by a processor, the steps of the method for automatically selecting the frequency of the small cell are realized.
Compared with the prior art, the method and the device have the advantages that the frequency points in the working frequency point list and the inter-frequency adjacent area lists of the surrounding macro base stations are scanned by the small base station, the optimal frequency point and the PCI of the small base station are determined, the same frequency interference, different frequency disturbance and the modular triple interference of the PCI are avoided while the small base station normally transmits wireless signals, the signal quality of the small base station is ensured, the huge workload of manually configuring the frequency point and the PCI is reduced, the manpower, material resources and financial resources are saved, the manual intervention is reduced, the manual errors are avoided, and the overall efficiency is improved.
Drawings
Fig. 1 is a flow chart of a method for automatically selecting a frequency by a small base station provided by the invention;
fig. 2 is a flowchart of step S200 in the method for automatically selecting frequency by a small base station according to the present invention;
fig. 3 is a flowchart of step S300 in the method for automatically selecting frequency by a small base station according to the present invention;
fig. 4 is a flowchart of step S500 in the method for automatically selecting frequency by a small cell provided in the present invention;
fig. 5 is a flowchart of a method for automatically selecting a frequency by a small cell according to another embodiment of the present invention;
fig. 6 is a flowchart of step S600 in the method for automatically selecting frequency by a small cell provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, an embodiment of the present invention provides a method for automatically selecting a frequency for a small cell, where the method includes:
s100, scanning frequency points in a working frequency point list, and selecting the frequency points without wireless signal coverage as a first candidate frequency point list;
s200, selecting an inter-frequency neighbor cell list of macro base stations around a small base station, and determining a second candidate frequency point list;
step S300, obtaining the available PCI list of each frequency point in the second candidate frequency point list, and making the available PCI list
Binding the PCI with the highest priority in the PCI list to the corresponding frequency point;
s400, taking a part which is not coincident with the part in the second candidate frequency point list in the first candidate frequency point list as a pilot frequency candidate list, and preferentially selecting a working frequency point from the pilot frequency candidate list;
and S500, when the different-frequency candidate list is empty, taking the intersection of the first candidate frequency point list and the second candidate frequency point list as a same-frequency point list, and selecting a working frequency point from the same-frequency point list.
Specifically, the small base station in the method is a plug-and-play home small base station (FAP), the FAP has two working modes of forced frequency selection and intelligent frequency selection, the application scene of the FAP is generally a user home environment, the surrounding wireless network environment is complex, and a wireless signal of the macro base station generally exists, so that after the FAP is powered on, the parameter Autosetfreqflag defaults to 1, namely, the intelligent frequency selection working mode is defaulted. When the application environment of the FAP is a newly-built residential area, the wireless network environment of the FAP is generally empty, so that after the FAP is powered on, the parameter Autosetfreqflag defaults to 1, namely, the default intelligent frequency-selecting working mode is only needed. When the FAP is applied to a specific test scene and a working frequency point with specified characteristics is required, after the FAP is electrified, a user is connected to a LAN port of the FAP by using a network cable, logs in a local background management system of the FAP, and modifies parameters
The Autosetfreqflag is 0, namely the frequency selection working mode of the FAP is switched from the intelligent frequency selection mode to the forced frequency selection mode, the working frequency point of the FAP is configured manually, and the FAP can directly use the configured working frequency point. The FAP is in an intelligent frequency selection mode under the default condition, namely the parameters in the FAP local background management system
The method for automatically selecting the frequency of the small base station is executed by FAP (self-established frequency flag) in an intelligent frequency selection mode, the FAP has a self working frequency point list, generally is a frequency point which is allocated to a usable specific frequency band, and the FAP needs to judge whether the working frequency point list is usable or not, so that the frequency points in the working frequency point list are scanned by starting the Sniffer, the frequency points without wireless signal coverage (without a corresponding cell or a cell with the RSRP less than-108.8 dBm) are selected as a first candidate frequency point list, and if the first candidate frequency point list is empty, the FAP is switched to a forced frequency selection working mode; because peripheral wireless environments are different, the FAP scans an inter-frequency neighbor cell list of a peripheral macro base station through the sniffer, so that the FAP needs to be capable of automatically selecting the most appropriate frequency point as a working frequency point within a frequency point range allocated for the FAP in advance according to information such as frequency points, signal intensity and neighbor cells of the peripheral macro base station, thereby achieving the purposes of improving coverage and providing better service for users, and having the minimum influence on the peripheral wireless environments.
It is worth to be noted that, because the harm of the PCI conflict under the same frequency is much larger than that of the PCI conflict under the different frequency, the invention takes the non-coincident part in the first candidate frequency point list and the second candidate frequency point list as the different frequency candidate list, preferentially selects the working frequency point from the different frequency candidate list, thereby preferentially avoiding the problem of the PCI conflict under the different frequency; when the different-frequency candidate list is empty, the intersection of the first candidate frequency point list and the second candidate frequency point list is used as a same-frequency point list, the working frequency point is selected from the same-frequency point list, and PCI conflict under the same frequency is further avoided on the basis of avoiding PCI conflict under different frequencies.
As shown in fig. 2, the step S200 specifically includes:
step S201, resolving SIB5 messages transmitted by macro base stations around the small base station, and acquiring an inter-frequency neighbor list of the macro base station;
step S202, if signals of a plurality of macro base stations exist around the frequency range, selecting an inter-frequency neighbor list of signals of the macro base stations with strongest signals, and taking an intersection of the selected inter-frequency neighbor list as a second candidate frequency point list.
Specifically, the small base station analyzes SIB5 (inter-frequency neighbor reselection message in system message in LTE) transmitted by a surrounding macro base station, acquires an inter-frequency neighbor list of the macro base station, selects an inter-frequency neighbor list of several (at most 3) macro base station signals with strongest signals if there are multiple signals of the macro base station around, and selects an intersection of the selected inter-frequency neighbor list as a second candidate frequency point list, and each frequency point in the second candidate frequency point list is arranged from weak to strong according to signal intensity, that is, frequency points with weak signals are preferentially arranged according to a display value of the signal intensity of the frequency point in the inter-frequency neighbor list of the macro base station.
As shown in fig. 3, the step S300 specifically includes:
step S301, extracting a numerical value unequal to the corresponding PCImod3 from the numerical values 0-503 as an available PCI aiming at each frequency point in the second candidate frequency point list, and obtaining an available PCI list of each frequency point;
step S302, PCI distribution is carried out on each frequency point in the second candidate frequency point list based on the available PCI list;
and step S303, binding the PCI with the highest priority to the corresponding frequency point according to the principle that the larger the numerical value is, the higher the priority is.
Specifically, a value which is different from a corresponding PCImod3 is extracted from the values 0-503 to serve as an available PCI, so that modulo three errors of the PCI are avoided, the PCI with the highest priority is bound to a corresponding frequency point according to the principle that the larger the value is, the higher the priority is, and further PCI repetition is avoided.
The step S400 specifically includes:
and taking the part which is not overlapped with the second candidate frequency point list in the first candidate frequency point list as a pilot frequency candidate list, and preferentially selecting the working frequency point according to the principle that the higher the RSRP (reference signal received power) is, the higher the priority is or the principle that the closer the position is, the higher the priority is.
Specifically, the stronger RSRP is, the better the signal coverage is, and generally, the closer the position is, the stronger RSRP is, so that the higher the priority of the stronger RSRP is, or the higher the priority of the closer position is, the higher the priority is, the principle of preferentially selecting the working frequency point is used, and the purposes of improving the coverage and providing better service for the user can be achieved, and the influence on the peripheral wireless environment is minimal.
As shown in fig. 4, the step S500 specifically includes:
s501, taking an intersection of the first candidate frequency point list and the second candidate frequency point list as a same-frequency point list;
step S502, judging whether the same-frequency point list is empty, if so, executing step S503, otherwise, executing step S504;
step S503, randomly selecting a frequency point from the first candidate frequency point list as a working frequency point, selecting the maximum value from the numerical values 0-503 as the PCI corresponding to the working frequency point, and working the working frequency point in an island mode;
step S504, the frequency point with the weakest signal in the second candidate frequency point list is selected from the same frequency point list as the working frequency point.
Specifically, when the co-frequency point list is empty, it indicates that there is no signal around the small base station, at this time, a frequency point is randomly selected from the first candidate frequency point list as a working frequency point, and the maximum value is selected from the values 0 to 503 as the PCI corresponding to the working frequency point.
As another preferred embodiment of the present invention, as shown in fig. 5, the method may further include:
and step S600, judging whether to reselect the working frequency point according to the signal quality of all terminals connected to the small base station.
Specifically, after the small base station finishes selecting the working frequency point, the routing inspection system inside the small base station is started to start routing inspection work, the routing inspection system is in a timing working mode and is in a dormant state generally, after a certain time period (manually configurable, default is 30 days), the dormant state is finished, and the routing inspection system is started to be in the working state. The working state time of the inspection system lasts 24 hours, the inspection system returns to the dormant state after the working state is finished, the inspection system collects the signal quality conditions of all terminals connected to the base station in the working state, and the time interval of data collected by the same terminal is 1 s. And further judging whether to reselect the working frequency point or not according to the collected data.
As shown in fig. 6, the step S600 specifically includes:
step S601, using the PCI value bound with the working frequency point as the PCI corresponding to the frequency point of the small base station, and periodically collecting data reflecting the signal quality condition of all terminals connected to the small base station;
step S602, averaging all the collected data;
step S603, if the average value is lower than the set threshold, executing next scanning of the frequency points in the working frequency point list to reselect the working frequency points.
Specifically, after the small base station finishes selecting the working frequency point, the PCI value bound with the working frequency point is automatically selected as the PCI corresponding to the small base station, an inspection system inside the small base station is started, inspection work is started, data (which can be RSRP) reflecting the signal quality condition of all terminals connected to the small base station are periodically collected at the last stage (for example, the last hour) of the inspection system in the working state, all collected data are averaged by inspection, if the value is lower than a threshold value (which is defaulted to be-90 dBm), intelligent frequency selection is restarted, the step 100 is returned, and the next scanning of the frequency points in the working frequency point list is executed to reselect the working frequency point.
The invention also provides a small base station which comprises a memory, a processor and a small base station automatic frequency selection program which is stored on the memory and can be operated on the processor, wherein the small base station automatic frequency selection program realizes the steps of the small base station automatic frequency selection method when being executed by the processor.
The invention also provides a computer readable storage medium, which stores the small cell automatic frequency selection program, and the small cell automatic frequency selection program realizes the steps of the small cell automatic frequency selection method when being executed by the processor.
In summary, the present invention provides a method for automatically selecting a frequency for a small cell, a small cell and a storage medium, where the method includes: scanning frequency points in the working frequency point list, and selecting frequency points without wireless signal coverage as a first candidate frequency point list; selecting an inter-frequency neighbor cell list of macro base stations around the small base station, and determining a second candidate frequency point list; acquiring an available PCI list of each frequency point in the second candidate frequency point list, and binding the PCI with the highest priority in the available PCI list to the corresponding frequency point; taking the part which is not coincident with the part in the second candidate frequency point list in the first candidate frequency point list as a pilot frequency candidate list, and preferentially selecting a working frequency point from the pilot frequency candidate list; and when the different-frequency candidate list is empty, taking the intersection of the first candidate frequency point list and the second candidate frequency point list as an identical-frequency point list, and selecting a working frequency point from the identical-frequency point list. When the small base station normally transmits a wireless signal, the interference of co-frequency interference, pilot frequency disturbance and PCI is avoided, the signal quality of the small base station is ensured, the huge workload of manually configuring frequency points and PCI is reduced, manpower, material resources and financial resources are saved, manual intervention is reduced, human errors are avoided, the overall efficiency is improved, the configuration can be changed according to the change of the surrounding wireless environment, and the quality of the signal is ensured.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (8)
1. A method for automatically selecting frequency of a small base station, the method comprising:
scanning frequency points in the working frequency point list, and selecting frequency points without wireless signal coverage as a first candidate frequency point list, wherein the frequency points without wireless signal coverage refer to cells without corresponding cells or cells with the RSRP less than-108.8 dbm;
selecting an inter-frequency neighbor cell list of macro base stations around the small base station, and determining a second candidate frequency point list, which specifically comprises the following steps:
resolving SIB5 message transmitted by macro base station around the small base station, obtaining inter-frequency neighbor list of macro base station,
if signals of a plurality of macro base stations exist around the frequency band, selecting an inter-frequency neighbor list of signals of the macro base stations with strongest signals, and taking an intersection of the selected inter-frequency neighbor list as a second candidate frequency point list;
acquiring an available PCI list of each frequency point in the second candidate frequency point list, and binding the PCI with the highest priority in the available PCI list to the corresponding frequency point;
taking the part which is not coincident with the part in the second candidate frequency point list in the first candidate frequency point list as a pilot frequency candidate list, and preferentially selecting the working frequency point from the pilot frequency candidate list, wherein the method specifically comprises the following steps:
taking a part which is not coincident with the part in the second candidate frequency point list in the first candidate frequency point list as a pilot frequency candidate list, and preferentially selecting working frequency points according to a principle that the higher the RSRP is, the higher the priority is or a principle that the closer the position is, the higher the priority is;
and when the different-frequency candidate list is empty, taking the intersection of the first candidate frequency point list and the second candidate frequency point list as an identical-frequency point list, and selecting a working frequency point from the identical-frequency point list.
2. The method as claimed in claim 1, wherein the frequency points in the second candidate frequency point list are arranged from weak to strong according to signal strength.
3. The method for automatically selecting frequencies by a small base station according to claim 1, wherein the obtaining of the available PCI list of each frequency point in the second candidate frequency point list binds the PCI with the highest priority in the available PCI list to the corresponding frequency point specifically comprises:
extracting a value which is not equal to the corresponding PCImod3 from the values 0-503 as an available PCI aiming at each frequency point in the second candidate frequency point list to obtain an available PCI list of each frequency point;
performing PCI distribution on each frequency point in the second candidate frequency point list based on the available PCI list;
and binding the PCI with the highest priority to the corresponding frequency point according to the principle that the larger the numerical value is, the higher the priority is.
4. The method according to claim 1, wherein when the different-frequency candidate list is empty, taking an intersection of the first candidate frequency point list and the second candidate frequency point list as an identical-frequency point list, and selecting a working frequency point from the identical-frequency point list, specifically comprises:
taking the intersection of the first candidate frequency point list and the second candidate frequency point list as a same-frequency point list;
if the same-frequency point list is empty, randomly selecting one frequency point from the first candidate frequency point list as a working frequency point, and selecting the maximum value from the numerical values of 0-503 as the PCI corresponding to the working frequency point, wherein the working frequency point works in an island mode;
and otherwise, selecting the frequency point with the weakest signal in the second candidate frequency point list from the same frequency point list as the working frequency point.
5. The method for automatic frequency selection by a small base station according to claim 1, wherein the method further comprises:
and judging whether to reselect the working frequency point or not according to the signal quality of all terminals connected to the small base station.
6. The method according to claim 5, wherein the determining whether to reselect the operating frequency point according to the signal quality of all terminals connected to the small cell specifically comprises:
taking the PCI value bound with the working frequency point as the PCI corresponding to the frequency point of the small base station, and periodically collecting data reflecting the signal quality condition of all terminals connected to the small base station;
averaging all collected data;
and if the average value is lower than the set threshold value, executing next scanning of the frequency points in the working frequency point list so as to reselect the working frequency points.
7. A small cell, characterized in that the small cell comprises a memory, a processor and a small cell automatic frequency selection program stored in the memory and operable on the processor, and when the small cell automatic frequency selection program is executed by the processor, the steps of the method for automatically selecting a frequency of a small cell according to any one of claims 1 to 6 are implemented.
8. A computer-readable storage medium, wherein a small cell automatic frequency selection program is stored on the computer-readable storage medium, and when executed by a processor, the small cell automatic frequency selection program implements the steps of the method for small cell automatic frequency selection according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811648640.8A CN109587764B (en) | 2018-12-30 | 2018-12-30 | Automatic frequency selection method for small base station, small base station and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811648640.8A CN109587764B (en) | 2018-12-30 | 2018-12-30 | Automatic frequency selection method for small base station, small base station and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109587764A CN109587764A (en) | 2019-04-05 |
| CN109587764B true CN109587764B (en) | 2022-04-01 |
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| CN110290529B (en) * | 2019-08-13 | 2023-04-25 | 北京百佑科技有限公司 | Networking balancing method, device and server |
| CN110430588B (en) * | 2019-08-15 | 2022-05-24 | 福建京奥通信技术有限公司 | Self-starting method, medium, equipment and device of base station |
| CN111641954B (en) * | 2020-05-25 | 2023-11-07 | 上海载德信息科技股份有限公司 | Frequency point configuration method, device, equipment and storage medium |
| CN111698744A (en) * | 2020-06-23 | 2020-09-22 | 广州三星通信技术研究有限公司 | Method for terminal to quickly return to preferred network and apparatus using the same |
| CN111787568B (en) * | 2020-07-09 | 2022-05-24 | 恒安嘉新（北京）科技股份公司 | Wireless parameter determination method, device, equipment and storage medium for small cell |
| CN114698011B (en) * | 2020-12-28 | 2023-08-22 | 成都鼎桥通信技术有限公司 | Method and device for preventing interference between small stations |
| CN113835774B (en) * | 2021-08-11 | 2023-03-21 | 中国电子科技集团公司第二十九研究所 | Efficient load software reconstruction method based on satellite-ground self-closed loop |
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| CN106332098A (en) * | 2015-06-30 | 2017-01-11 | 中国移动通信集团公司 | Method and device for distributing physical cell ID (PCI) |
| CN108234683A (en) * | 2016-12-15 | 2018-06-29 | 普天信息技术有限公司 | PCI methods of adjustment and device under inter-frequency networking |
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