Cell handover method and apparatus, base station, and storage medium

Abstract

The application discloses a cell switching method and device, a base station and a storage medium, and belongs to the field of communication technologies. Embodiments of the application first identify a fast-fading scene in a first cell occupied by a target electronic device. When it is determined that the fast-fading scene exists in the first cell occupied by the target electronic device and before the target electronic device enters the fast-fading scene, the first cell occupied by the target electronic device is further switched according to a first distance between the target electronic device and the fast-fading scene in each preset period, that is, embodiments of the application can switch the service cell of the target electronic device from a cell outside the fast-fading scene to a cell in the fast-fading scene before the target electronic device enters the fast-fading scene, that is, from an outdoor cell to an indoor cell, so that the situation that the outdoor signal strength on the target electronic device rapidly decays and the network link rapidly deteriorates after the target electronic device enters the fast-fading scene can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and particularly relates to a cell switching method and device, a base station and a storage medium. BACKGROUND

[0002] During movement, an electronic device can enter a closed scene such as a residence, a shopping mall, a parking lot, etc. These scenes can cause the outdoor signal strength on the electronic device to rapidly decrease. In order to ensure the communication quality of the electronic device, the serving cell of the electronic device needs to be switched from outdoor to indoor.

[0003] Currently, cell switching is mainly based on the signal strength of the electronic device. For example, when the signal strength of the electronic device is lower than a threshold value, a cell switching strategy is triggered, and the serving cell of the electronic device is switched.

[0004] This scheme can cause the signal strength of the outdoor signal to rapidly decrease due to the shielding factor when the electronic device does not stop entering the closed scene such as the residence, the shopping mall, the parking lot, etc. Thus, the signal strength does not reach the threshold value before the electronic device enters the closed scene. After entering the closed scene, the signal strength rapidly decreases, which can cause the network link of the electronic device to rapidly deteriorate.

[0005] Application Content

[0006] The embodiments of the present application provide a cell switching method, device, base station and storage medium, which can solve the problem that the signal strength rapidly decreases and the network link rapidly deteriorates after the electronic device enters the closed scene according to the related art.

[0007] In a first aspect, the embodiments of the present application provide a cell switching method, comprising:

[0008] obtaining measurement information reported by at least one first electronic device in N preset periods, the measurement information comprising first information of a first cell occupied by the first electronic device in a corresponding preset period and position information of the first electronic device, N being an integer greater than 1;

[0009] determining whether a first cell occupied by a target electronic device has a fast fading scene according to the first information of the first cell occupied by each first electronic device in each preset period, the target electronic device being any one of the first electronic devices;

[0010] in a case where the first cell occupied by the target electronic device has the fast fading scene, determining a first distance between the target electronic device and the fast fading scene in each preset period according to the position information of the target electronic device in each preset period and position information of the fast fading scene;

[0011] Before the target electronic device enters the fast fading scenario, the serving cell of the target electronic device is switched from the first cell to a second cell according to the first distances and the first cells occupied by the target electronic device in the preset periods, the second cell being a cell adjacent to the first cell and located in the fast fading scenario.

[0012] In a second aspect, an embodiment of the present application provides a cell switching apparatus, comprising: an obtaining module, a determining module and a switching module.

[0013] The obtaining module is configured to obtain measurement information reported by at least one first electronic device in N preset periods, the measurement information comprising first information of a first cell occupied by the first electronic device in a corresponding preset period and position information of the first electronic device, N being an integer greater than 1.

[0014] The determining module is configured to determine whether a first cell occupied by a target electronic device has a fast fading scenario according to the first information of the first cell occupied by each first electronic device in each preset period, the target electronic device being any one of the first electronic devices.

[0015] The determining module is further configured to determine a first distance between the target electronic device and the fast fading scenario in each preset period according to the position information of the target electronic device in each preset period and position information of the fast fading scenario in a case where the first cell occupied by the target electronic device has the fast fading scenario.

[0016] The switching module is configured to switch the serving cell of the target electronic device from the first cell to a second cell according to the first distances and the first cells occupied by the target electronic device in the preset periods before the target electronic device enters the fast fading scenario, the second cell being a cell adjacent to the first cell and located in the fast fading scenario.

[0017] In a third aspect, an embodiment of the present application provides a base station, comprising: a processor, and a memory storing computer program instructions; the processor reads and executes the computer program instructions to implement the cell switching method of the first aspect.

[0018] In a fourth aspect, an embodiment of the present application provides a computer readable storage medium, the computer storage medium storing computer program instructions, the computer program instructions being executed by a processor to implement the cell switching method of the first aspect.

[0019] In a fifth aspect, an embodiment of the present application provides a computer program product, instructions in the computer program product being executed by a processor of a base station to enable the base station to perform the steps of the method of the first aspect.

[0020] The embodiment of the present application determines whether the first cell occupied by the target electronic device exists a fast fading scenario according to the first information of the first cell occupied by each first electronic device in each preset period, and in the case that the first cell occupied by the target electronic device exists a fast fading scenario, switches the serving cell of the target electronic device from the first cell to a second cell according to the first distance between the target electronic device and the fast fading scenario in each preset period and the first cell occupied by the target electronic device in each preset period, and the second cell is a cell adjacent to the first cell and located in the fast fading scenario. That is, the embodiment of the present application identifies the fast fading scenario in the first cell occupied by the target electronic device first, and in the case that the first cell occupied by the target electronic device exists a fast fading scenario and before the target electronic device enters the fast fading scenario, further switches the first cell occupied by the target electronic device according to the first distance between the target electronic device and the fast fading scenario in each preset period, that is, the embodiment of the present application can switch the serving cell of the target electronic device from the cell outside the fast fading scenario to the cell in the fast fading scenario, that is, from the outdoor cell to the indoor cell, before the target electronic device enters the fast fading scenario, so as to avoid the case that the outdoor signal strength on the target electronic device rapidly declines and the network link sharply deteriorates after the target electronic device enters the fast fading scenario. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced. Those skilled in the art can obtain other drawings according to these drawings without paying creative labor.

[0022] Figure 1 A flow chart of a cell switching method provided by the embodiment of the present application;

[0023] Figure 2 A flow chart of another cell switching method provided by the embodiment of the present application;

[0024] Figure 3 A schematic diagram of a fast fading scenario provided by the embodiment of the present application;

[0025] Figure 4 A structural diagram of a cell switching device provided by the embodiment of the present application;

[0026] Figure 5 A structural diagram of a base station provided by the embodiment of the present application. DETAILED DESCRIPTION

[0027] The features and exemplary embodiments of various aspects of the present application will be described in detail below with reference to the drawings and examples. It should be understood that the specific embodiments described herein are merely configured to explain the present application and are not configured to limit the present application. The present application can be implemented without some of the specific details described below. The following description of the embodiments is merely provided to provide a better understanding of the present application by showing examples of the present application.

[0028] It should be noted that, in this paper, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the elements defined by the statement "include" do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0029] The related art mainly realizes cell switching based on the signal strength or signal strength of the electronic device, for example, when the signal strength of the electronic device is lower than a threshold value, the cell switching strategy is triggered, and the service cell of the electronic device is switched.

[0030] This scheme will cause the signal strength of the outdoor signal to rapidly decrease due to the shielding factor when the electronic device enters a closed scene such as a residence, a shopping mall, a parking lot, etc. without stopping, so that the signal strength threshold is not reached before the electronic device enters the closed scene. After entering the closed scene, the signal strength or signal strength rapidly decreases, resulting in a situation that the network link of the electronic device is rapidly deteriorated.

[0031] Therefore, the embodiments of the present application provide a cell switching method, device, base station and storage medium, which can solve the problem that the signal strength rapidly decreases and the network link is rapidly deteriorated after the electronic device enters a closed scene in the related art.

[0032] The embodiments of the present application mainly determine a cell in which a fast fading scene exists, locate the position of the fast fading scene in the coverage range of the cell, based on the position of the fast fading scene, combine the position information of the electronic device reported by the electronic device in real time, and conditionally initiate a switching decision, so that the electronic device is switched to a cell with better signal strength in advance, and the fast fading situation is avoided.

[0033] The cell switching method, device, base station, and storage medium provided in the embodiments of the present application are described below with reference to specific embodiments. Figure 1 This is a flow chart of a cell switching method provided in an embodiment of the present application. The method can be applied to a base station.

[0034] The base station can be, for example, a base station in the Global System for Mobile Communications (GSM) or Code Division Multiple Access (CDMA), such as a Base Transceiver Station, or a base station in Wideband Code Division Multiple Access (WCDMA), such as a NodeB or NB, or an evolved base station in Long Term Evolution (LTE), such as an eNB, e-NodeB, or evolved Node B. The embodiment of the present application takes an e-NodeB base station as an example.

[0035] like Figure 1 As shown, the cell switching method may include the following steps:

[0036] S110: Obtain measurement information reported by at least one first electronic device in N preset periods.

[0037] The measurement information includes first information of a first cell occupied by the first electronic device in a corresponding preset period and location information of the first electronic device, where N is an integer greater than 1.

[0038] S120: Determine whether a fast fading scenario exists in the first cell occupied by the target electronic device based on first information of the first cell occupied by each first electronic device in each preset period.

[0039] The target electronic device is any one of the first electronic devices.

[0040] S130. When a fast fading scenario exists in a first cell occupied by the target electronic device, determine a first distance between the target electronic device and the fast fading scenario in each preset period according to the location information of the target electronic device in each preset period and the location information of the fast fading scenario.

[0041] S140: Before the target electronic device enters a fast fading scenario, switching the serving cell of the target electronic device from the first cell to the second cell according to each first distance and the first cell occupied by the target electronic device in each preset period.

[0042] The second cell is a cell adjacent to the first cell and located in the fast fading scenario.

[0043] The embodiment of the present application determines whether the first cell occupied by the target electronic device exists in a fast fading scenario according to the first information of the first cell occupied by each first electronic device in each preset period, and switches the serving cell of the target electronic device from the first cell to a second cell in the case that the first cell occupied by the target electronic device exists in a fast fading scenario, the second cell being a cell adjacent to the first cell and located in the fast fading scenario. That is, the embodiment of the present application first identifies the fast fading scenario in the first cell occupied by the target electronic device, and further switches the first cell occupied by the target electronic device according to the first distance of the target electronic device from the fast fading scenario in each preset period in the case that the target electronic device enters the fast fading scenario and the first cell occupied by the target electronic device exists in a fast fading scenario. That is, the embodiment of the present application can switch the serving cell of the target electronic device from the cell outside the fast fading scenario to the cell in the fast fading scenario, that is, from the outdoor cell to the indoor cell, before the target electronic device enters the fast fading scenario, so as to avoid the rapid fading of the outdoor signal strength on the target electronic device and the sharp deterioration of the network link after the target electronic device enters the fast fading scenario.

[0044] The above steps are described in detail as follows:

[0045] In S110, the first electronic device can be a user equipment (UE), which can be a mobile terminal, a personal computer (PC), and the like, for example, and can be a smart phone, a tablet computer, a notebook computer, a vehicle-mounted computer, a palm game console, a wearable device, a virtual display device, or a display enhancement device, and the like. The first electronic device can perform data communication with a base station. There are multiple first electronic devices in the embodiment of the present application.

[0046] The preset period is a time interval for the first electronic device to report the measurement information, which can be set to 5s, for example, that is, the first electronic device can report the measurement information once every 5s. The preset periods corresponding to different first electronic devices can be the same or different. The time points at which the first electronic devices report the measurement information can be the same or different.

[0047] Measurement information, also referred to as a measurement report (MR). The measurement information can include, but is not limited to, first information of a first cell occupied by the first electronic device at each preset period, location information of the first electronic device, identification information of the first electronic device, neighboring cell information, and the like.

[0048] The first information can include, for example, signal strength (Signal to Interference plus Noise Ratio, SINR) and signal strength (Reference Signal Receiving Power, RSRP) of the first cell. The location information of the first electronic device can include, for example, latitude and longitude of the first electronic device.

[0049] The identification information of the first electronic device is used to uniquely identify the first electronic device, and the identification information does not disclose information of the corresponding user, so as to ensure the privacy and security of the user. Different first electronic devices correspond to different identification information.

[0050] The neighboring cell information can include, for example, a neighboring cell of the first cell and signal strength and signal strength of the neighboring cell.

[0051] Exemplarily, the base station can obtain the measurement information reported by each first electronic device at each preset period.

[0052] In S120, the target electronic device is any one of the first electronic devices. That is, the embodiment of the present application can determine whether a cell occupied by any first electronic device has a fast fading scenario.

[0053] The fast fading scenario is a scenario in which signal strength and signal strength rapidly decay. In general, the fast fading scenario is a scenario containing shielding factors, such as elevators, residences, shopping malls, parking lots, and the like. When a user enters the fast fading scenario, the outdoor signal on the first electronic device will rapidly decrease.

[0054] In order to avoid network link deterioration or disconnection and the like when the user enters the fast fading scenario, it is necessary to switch the serving cell of the first electronic device from outdoor to indoor before the user enters the fast fading scenario.

[0055] Exemplarily, after the base station obtains the measurement information reported by each first electronic device at each preset period, the base station can determine whether the first cell occupied by the target electronic device has a fast fading scenario based on the signal strength or signal strength of the first cell occupied by each first electronic device at each preset period.

[0056] Exemplarily, the base station can classify the first electronic devices based on the signal strength or signal strength reported by each first electronic device in each preset period, and determine whether the first cell occupied by the target electronic device exists in a fast fading scenario based on the classification result. For example, if the signal strength of each first electronic device in two adjacent preset periods is greater than a set threshold, it is considered that the cell occupied by each first electronic device exists in a fast fading scenario.

[0057] In S130, exemplarily, the position information of the fast fading scenario can be the position information of the center of the fast fading scenario.

[0058] Taking the longitude and latitude as an example, exemplarily, in the case where it is determined that the first cell occupied by the target electronic device exists in a fast fading scenario, the first distance between the target electronic device and the fast fading scenario in each preset period can be determined in real time according to the longitude and latitude of the target electronic device reported in real time in each preset period and the longitude and latitude of the fast fading scenario, thereby providing a basis for subsequent cell switching.

[0059] In S140, the second cell is a cell in the fast fading scenario. Before the target electronic device enters the fast fading scenario, the service cell of the target electronic device can be switched from an outdoor cell (the first cell) to an indoor cell (the second cell) according to the first distance between the target electronic device and the fast fading scenario in each preset period and the first cell occupied by the target electronic device in each preset period, so that the target electronic device can directly use the cell in the fast fading scenario after the user enters the fast fading scenario, thereby avoiding the situation of network link deterioration or even disconnection.

[0060] For example, if the distance between the target electronic device and the fast fading scenario in each preset period decreases in turn, and the first cell occupied by the target electronic device in each preset period is the same, it indicates that the target electronic device is close to the fast fading scenario, and at this time, the service cell of the target electronic device can be switched from an outdoor cell to an indoor cell in the last preset period.

[0061] Taking the first information including the signal strength as an example, exemplarily, as shown in Figure 2 The cell switching method can include the following steps:

[0062] S210, obtaining measurement information reported by at least one first electronic device in N preset periods.

[0063] S220, determining whether a fast fading set exists according to the first cell occupied by each first electronic device in each preset period and the signal strength of the first cell.

[0064] The fast fading set includes M first electronic devices, the target electronic device is any electronic device in the M first electronic devices, and M is an integer greater than 1.

[0065] S230, in the presence of fast fading set, determine that the first cell occupied by the target electronic device exists fast fading scenario.

[0066] S240, in the absence of fast fading set, determine that the first cell occupied by the target electronic device does not exist fast fading scenario.

[0067] S250, in the case that the first cell occupied by the target electronic device exists fast fading scenario, according to the position information of the target electronic device in each preset period and the position information of the fast fading scenario, determine the first distance between the target electronic device and the fast fading scenario in each preset period.

[0068] S260, before the target electronic device enters the fast fading scenario, according to each first distance and the first cell occupied by the target electronic device in each preset period, switch the service cell of the target electronic device from the first cell to the second cell.

[0069] Wherein, the process of S210, S250 and S260 is the same as the process of S110, S130 and S140, and can refer to the above S110, S130 and S140 for details, for the sake of brevity, this will not be described again.

[0070] The above other steps are described in detail as follows:

[0071] In S220, the fast fading set is the set of first electronic devices whose signal strength decays in each preset period, and the first cell occupied by each first electronic device is the same.

[0072] Taking N=3 as an example, that is, the preset period can include the first preset period, the second preset period and the third preset period, and the time points corresponding to the first preset period, the second preset period and the third preset period are sequentially increased.

[0073] Exemplarily, the above S220 can include the following steps:

[0074] S2201, initialize the first set;

[0075] S2202, for each first electronic device, in the case that the first cell occupied by the first electronic device in the first preset period is the same as the first cell occupied by the first electronic device in the second preset period, the first cell occupied by the first electronic device in the second preset period is different from the adjacent cell of the first cell occupied by the first electronic device in the third preset period, and the signal strength of the first electronic device in the second preset period is less than the preset signal strength, store the first electronic device to the first set;

[0076] S2203: When the number of first electronic devices included in the first set is greater than a first threshold, determine the first set as a fast fading set.

[0077] Exemplarily, the first set is initially empty. It should be understood that a fast fading scenario does not occur alone, that is, a fast fading scenario is not determined to be caused by a signal strength attenuation in a certain electronic device.

[0078] That is, the first electronic device has a similar change pattern before and after entering the fast fading scene. In order to improve the accuracy of positioning in the fast fading scene, the embodiment of the present application can make judgments based on multiple first electronic devices.

[0079] The similarity of the change rules can be that different first electronic devices occupy the same first cell in the first preset period and the second preset period, the neighboring cells of the first cell occupied in the second preset period are different from those of the cell occupied in the third preset period, and the signal strength of the first electronic device in the second preset period is less than the preset signal strength.

[0080] Therefore, it can be determined whether the first cells occupied by each first electronic device in the first preset period and the second preset period are the same, whether the neighboring cells of the first cell occupied in the second preset period and the cell occupied in the third preset period are the same, and whether the signal strength in the second preset period is less than the preset signal strength.

[0081] Exemplarily, if the first cell occupied by each first electronic device in the first preset period and the second preset period, the neighboring cells of the first cell occupied in the second preset period and the cell occupied in the third preset period are different, and the signal strength in the second preset period is less than the preset signal strength, the first electronic device is added to the first set.

[0082] For example, for each first electronic device, if the first cell M occupied by the first electronic device in the first preset period i and the first cell N occupied by the second preset period i If the first electronic device is in cell 1, the neighboring cell of the first cell occupied by the first electronic device in the third preset period is cell 2, and the signal strength of the first electronic device in the second preset period is less than the preset signal strength, the first electronic device is stored in the first set. i is the i-th first electronic device.

[0083] The magnitude of the preset signal strength can be set according to actual needs, for example, it can be set to -5dBm. It should be noted that in the embodiment of the present application, the difference in signal strength between the first preset period and the second preset period of each first electronic device added to the first set is greater than the preset difference, which can be set to 20dBm, for example.

[0084] When the number of first electronic devices in the first set is greater than a first threshold, the first set may be determined as a fast fading set.

[0085] Exemplarily, the first threshold may be set to 10, that is, if the number of first electronic devices in the first set is greater than 10, the first set may be determined as a fast fading set.

[0086] The embodiment of the present application can determine whether there is a fast fading set with similar rules in the first cell based on the relationship between the first cells occupied by each first electronic device in each preset period and the signal strength in the second preset period, thereby providing a basis for subsequent determination of the fast fading scenario.

[0087] In actual application, the first cell may have one or more fast fading sets with similar rules. One fast fading set may correspond to one fast fading scenario, that is, the first cell may have one or more fast fading scenarios.

[0088] In S230 , when a fast fading set exists in the first cell, it may be determined that a fast fading scenario exists in the first cell occupied by the target electronic device.

[0089] Exemplarily, the first cell may have one or more fast fading sets, that is, the first cell may have one or more fast fading scenarios.

[0090] For example, refer to Figure 3 There are three fast fading sets in the first cell where the target electronic device is located, namely fast fading set 1, fast fading set 2, and fast fading set 3. Therefore, there are three fast fading scenarios in the first cell, namely the scenario corresponding to fast fading set 1, the scenario corresponding to fast fading set 2, and the scenario corresponding to fast fading set 3.

[0091] In S240 , when there is no fast fading set in the first cell, it may be determined that there is no fast fading scenario in the first cell occupied by the target electronic device.

[0092] The embodiment of the present application can determine whether there is a fast fading set in the first cell occupied by the target electronic device based on the signal strength of each first electronic device in each preset period and the first cell occupied in each preset period, and then determine whether there is a fast fading scenario in the first cell, thereby improving the accuracy of the fast fading scenario and thus improving the accuracy of cell switching.

[0093] In actual application, the measurement information reported by each first electronic device may be incorrect. To improve the accuracy of the fast fading set, illustratively, the above S2203 may include the following steps:

[0094] When the number of first electronic devices included in the first set is greater than a first threshold, determining the first set as a candidate set;

[0095] determining a first movement distance of the first electronic device from the first preset period to the second preset period based on the position information of the first electronic device in the first preset period and the position information of the first electronic device in the second preset period;

[0096] determining a second movement distance of the first electronic device from the second preset period to the third preset period based on the position information of the first electronic device in the second preset period and the position information of the first electronic device in the third preset period;

[0097] When at least one of the first moving distance and the second moving distance is greater than a third threshold, the first electronic device is deleted from the candidate set to obtain a fast fading set.

[0098] For example, the movement distance of the first electronic device between two adjacent preset periods can be determined based on the location information of the first electronic device in two adjacent preset periods. If the movement distance is greater than the set threshold, it is considered that the location information reported by the first electronic device in a certain preset period is incorrect, and the first electronic device can be removed from the candidate set.

[0099] For example, the first movement distance of the first electronic device from the first preset period to the second preset period can be determined based on the location information of the first electronic device in the first preset period and the second preset period, and the second movement distance of the first electronic device from the second preset period to the third preset period can be determined based on the location information of the first electronic device in the second preset period and the third preset period. If at least one of the first movement distance and the second movement distance is greater than a third threshold, it is considered that the location information reported by the first electronic device in one or more preset periods is incorrect, and therefore the first electronic device can be deleted from the candidate set. The size of the third threshold can be set according to actual needs.

[0100] After the candidate set is completed, the fast fading set can be obtained, which improves the accuracy of the fast fading set.

[0101] The location information of the fast fading scenario may be determined based on the location information of each first electronic device in the corresponding fast fading set. Exemplarily, before S130, the cell switching method may include the following steps:

[0102] Determining a first area where each first electronic device in the fast fading set is located according to position information of each first electronic device in the fast fading set during a target preset period;

[0103] The location information of the center of the first area is determined as the location information of the fast fading scene corresponding to the fast fading set.

[0104] Exemplarily, the target preset period may be a second preset period, that is, an embodiment of the present application may determine the first area in which each first electronic device is distributed based on the longitude and latitude of each first electronic device in the fast fading set in the second preset period, and determine the longitude and latitude of the center of the first area as the longitude and latitude in the corresponding fast fading scene, that is, the location information of the fast fading scene.

[0105] Correspondingly, the first distance between the target electronic device and the fast fading scene in each preset period is the distance between the longitude and latitude of the target electronic device in each preset period and the longitude and latitude of the center of the fast fading scene.

[0106] For example, refer to Figure 3 The longitude and latitude of the center of fast fading scene 1 are (lat1, lon1), the longitude and latitude of the center of fast fading scene 2 are (lat2, lon2), and the longitude and latitude of the center of fast fading scene 3 are (lat3, lon3).

[0107] After determining the fast fading set, the embodiment of the present application can determine the location information of the corresponding fast fading scene based on the location information of each first electronic device in the fast fading set, providing a basis for subsequently determining the distance between the target electronic device and the fast fading scene.

[0108] In some embodiments, the above S140 may include the following steps:

[0109] When the first cell occupied by the target electronic device in each preset period is the same as the cell in a fast fading scenario, and a neighboring cell of the first cell occupied by the target electronic device in the Nth preset period is in a fast fading scenario, and the signal strength of the neighboring cell is greater than the preset signal strength, the serving cell of the target electronic device is switched from the first cell to the second cell according to each first distance.

[0110] Still taking the example of three preset periods, namely a first preset period, a second preset period, and a third preset period, illustratively, if the first cell occupied by the target electronic device in the three preset periods is the same as the cell where the fast fading scenario is located, and the neighboring cell of the first cell occupied by the target electronic device in the last preset period, that is, the third preset period, is located in the fast fading scenario, and the signal strength of the neighboring cell is greater than the preset signal strength, then the serving cell of the target electronic device can be further switched according to the first distance between the target electronic device and the fast fading scenario in each preset period.

[0111] The preset signal strength may be set to -110 dBm, for example.

[0112] In an embodiment of the present application, when the first cell occupied by the target electronic device in each preset period, the neighboring cell of the first cell occupied in the last preset period, and the signal strength of the neighboring cell respectively meet the above conditions, the service cell of the target electronic device can be switched from outdoor to indoor in advance before the target electronic device enters the fast fading scenario based on the first distance between the target electronic device in each preset period and the fast fading scenario, thereby avoiding frequent network problems when the target electronic device enters the fast fading scenario.

[0113] In some embodiments, the above-mentioned “switching the serving cell of the target electronic device from the first cell to the second cell according to each first distance” may include the following steps:

[0114] When the first distance of the target electronic device decreases in each preset period and the first distance of the target electronic device in the Nth preset period is less than the second threshold, determining a neighboring cell of the first cell occupied by the target electronic device in the Nth preset period as the second cell;

[0115] A switching instruction is sent to a target electronic device, so that the target electronic device switches a serving cell from the first cell to the second cell based on the switching instruction, wherein the switching instruction includes the second cell.

[0116] Exemplarily, when the first cell occupied by the target electronic device in each preset period, the neighboring cell of the first cell occupied in the last preset period, and the signal strength of the neighboring cell respectively meet the above conditions, if the distance between the target electronic device and the fast fading scene gradually decreases in three preset periods, it indicates that the target electronic device is approaching the fast fading scene. If the distance between the target electronic device and the fast fading scene in the last preset period is less than a second threshold, it indicates that the target electronic device is about to enter the fast fading scene. At this time, the base station can send a switching instruction to the target electronic device, notifying the target electronic device to switch the service cell from outdoor to a cell within the fast fading scene.

[0117] The size of the second threshold can be set according to actual needs, for example, the second threshold can be set to 10m.

[0118] The switching instruction may include a second cell, that is, a cell in a fast fading scenario. After the target electronic device receives the switching instruction, it can quickly switch the serving cell from outdoor to indoor, avoiding situations such as electronic device disconnection due to fast fading.

[0119] In an embodiment of the present application, when a target electronic device approaches a fast fading scenario and before entering the fast fading scenario, a switching instruction is sent to the target electronic device, so that the target electronic device can switch the serving cell from an outdoor cell to an indoor cell with better signal strength in advance, thereby avoiding fast signal fading.

[0120] It should be noted that the cell switching method provided in the embodiment of the present application can coexist with the traditional switching method based on the signal strength threshold value, but the cell switching method provided in the embodiment of the present application is not triggered by event messages such as A3 and A4 reported by the electronic device, but is triggered by periodic measurement information reported by the electronic device. When the electronic device is in an idle state, that is, when no measurement information is reported, it indicates that whether there is fast fading has no effect on the user, so there is no need to execute the cell switching scheme of the embodiment of the present application.

[0121] The embodiment of the present application locates the center position of the fast fading scenario, and can accurately perform cell switching for electronic devices that may cause fast fading, with higher switching accuracy; and the embodiment of the present application implements switching based on the location information reported by the electronic device in real time, with higher timeliness; in addition, the embodiment of the present application can automatically determine the cells where fast fading scenarios exist, and determine the center position of the fast fading scenario of each cell, without the need for multiple manual optimizations, thus saving human resources.

[0122] Based on the same inventive concept, the embodiment of the present application also provides a cell switching device. Figure 4 The cell switching device provided in the embodiment of the present application is described in detail.

[0123] Figure 4 A structural diagram of a cell switching device provided in an embodiment of the present application.

[0124] like Figure 4 As shown, the cell switching device may include: an acquisition module 410, a determination module 420 and a switching module 430;

[0125] An acquisition module 410 is configured to acquire measurement information reported by at least one first electronic device during N preset periods, the measurement information including first information of a first cell occupied by the first electronic device during the corresponding preset period and location information of the first electronic device, where N is an integer greater than 1;

[0126] a determination module 420 configured to determine, based on first information about first cells occupied by each first electronic device in each preset period, whether a fast fading scenario exists in the first cell occupied by a target electronic device, where the target electronic device is any one of the first electronic devices;

[0127] The determining module 420 is further configured to determine, when a fast fading scenario exists in the first cell occupied by the target electronic device, a first distance between the target electronic device and the fast fading scenario in each preset period based on the location information of the target electronic device in each preset period and the location information of the fast fading scenario;

[0128] The switching module 430 is configured to switch the serving cell of the target electronic device from the first cell to a second cell according to the first distances and the first cells occupied by the target electronic device in the preset periods before the target electronic device enters the fast fading scenario, the second cell being a cell adjacent to the first cell and located in the fast fading scenario.

[0129] The embodiments of the present application determine whether the first cell occupied by the target electronic device has a fast fading scenario according to the first information of the first cells occupied by the first electronic devices in the preset periods, and switch the serving cell of the target electronic device from the first cell to a second cell according to the first distances between the target electronic device and the fast fading scenario in the preset periods and the first cells occupied by the target electronic device in the preset periods in the case that the first cell occupied by the target electronic device has a fast fading scenario, the second cell being a cell adjacent to the first cell and located in the fast fading scenario. That is, the embodiments of the present application first identify the fast fading scenario in the first cell occupied by the target electronic device, and further switch the first cell occupied by the target electronic device according to the first distances between the target electronic device and the fast fading scenario in the preset periods in the case that the target electronic device enters the fast fading scenario before it is determined that the first cell occupied by the target electronic device has a fast fading scenario. That is, the embodiments of the present application can switch the serving cell of the target electronic device from a cell outside the fast fading scenario to a cell in the fast fading scenario, i.e., from an outdoor cell to an indoor cell, before the target electronic device enters the fast fading scenario, so as to avoid the rapid fading of the outdoor signal strength on the target electronic device and the sharp deterioration of the network link after the target electronic device enters the fast fading scenario.

[0130] In some embodiments, the first information includes signal strength.

[0131] The determining module 420 includes:

[0132] The first determining unit is configured to determine whether there is a fast fading set according to the first cells occupied by the first electronic devices in the preset periods and the signal strengths of the first cells, the fast fading set including M first electronic devices, the target electronic device being any electronic device of the M first electronic devices, and M being an integer greater than 1.

[0133] The second determining unit is configured to determine that the first cell occupied by the target electronic device has a fast fading scenario in the case that there is a fast fading set, and determine that the first cell occupied by the target electronic device does not have a fast fading scenario in the case that there is no fast fading set.

[0134] In some embodiments, N=3, and the preset periods include a first preset period, a second preset period and a third preset period.

[0135] The first determining unit is specifically configured to:

[0136] Initialize the first set;

[0137] For each first electronic device, if a first cell occupied by the first electronic device in a first preset period is the same as a first cell occupied by the first electronic device in a second preset period, a neighboring cell of the first cell occupied by the first electronic device in the second preset period and a neighboring cell of the first cell occupied by the first electronic device in a third preset period are different, and a signal strength of the first electronic device in the second preset period is less than a preset signal strength, the first electronic device is stored in the first set;

[0138] When the number of first electronic devices included in the first set is greater than a first threshold, the first set is determined as a fast fading set.

[0139] In some embodiments, the first determining unit is specifically configured to:

[0140] When the number of first electronic devices included in the first set is greater than a first threshold, determining the first set as a candidate set;

[0141] determining a first movement distance of the first electronic device from the first preset period to the second preset period based on the position information of the first electronic device in the first preset period and the position information of the first electronic device in the second preset period;

[0142] determining a second movement distance of the first electronic device from the second preset period to the third preset period based on the position information of the first electronic device in the second preset period and the position information of the first electronic device in the third preset period;

[0143] When at least one of the first moving distance and the second moving distance is greater than a third threshold, the first electronic device is deleted from the candidate set to obtain a fast fading set.

[0144] In some embodiments, before determining the first distance between the target electronic device and the fast fading scenario in each preset period based on the location information of the target electronic device in each preset period and the location information of the fast fading scenario, the determination module 420 is further configured to:

[0145] Determining a first area where each first electronic device in the fast fading set is located according to position information of each first electronic device in the fast fading set during a target preset period;

[0146] The location information of the center of the first area is determined as the location information of the fast fading scene corresponding to the fast fading set.

[0147] In some embodiments, the switching module 430 is specifically configured to:

[0148] When the first cell occupied by the target electronic device in each preset period is the same as the cell in a fast fading scenario, and a neighboring cell of the first cell occupied by the target electronic device in the Nth preset period is in a fast fading scenario, and the signal strength of the neighboring cell is greater than the preset signal strength, the serving cell of the target electronic device is switched from the first cell to the second cell according to each first distance.

[0149] In some embodiments, the switching module 430 is specifically configured to:

[0150] When the first distance of the target electronic device decreases in each preset period and the first distance of the target electronic device in the Nth preset period is less than the second threshold, determining a neighboring cell of the first cell occupied by the target electronic device in the Nth preset period as the second cell;

[0151] A switching instruction is sent to a target electronic device, so that the target electronic device switches a serving cell from the first cell to the second cell based on the switching instruction, wherein the switching instruction includes the second cell.

[0152] Figure 4 Each module in the device shown has the function of realizing Figures 1-3 The functions of each step in the process can achieve the corresponding technical effects, so for the sake of brevity, they will not be described here in detail.

[0153] Based on the same inventive concept, the embodiment of the present application also provides a base station. Figure 5 The base station provided in the embodiment of the present application is described in detail.

[0154] like Figure 5 As shown, the base station may include a processor 510 and a memory 520 for storing computer program instructions.

[0155] The processor 510 may include a central processing unit (CPU) or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0156] The memory 520 may include a large capacity memory for data or instructions. By way of example and not limitation, the memory 520 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of these. In one example, the memory 720 may include a removable or non-removable (or fixed) medium, or the memory 520 may be a non-volatile solid-state memory. In one example, the memory 520 may be a read-only memory (ROM). In one example, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM), or a flash memory, or a combination of two or more of these.

[0157] The processor 510 reads and executes the computer program instructions stored in the memory 520 to implement Figures 1-3 The method in the embodiment shown in FIG. Figures 1-3 The corresponding technical effects achieved by executing the method in the illustrated embodiment are not described in detail here for the sake of brevity.

[0158] In one example, the base station may further include a communication interface 530 and a bus 540. Figure 5 As shown, the processor 510 , the memory 520 , and the communication interface 530 are connected via a bus 540 and communicate with each other.

[0159] The communication interface 530 is mainly used to implement communication between various modules, devices and / or equipment in the embodiments of the present application.

[0160] Bus 540 includes hardware, software or both, and each component of base station is coupled to each other.For example, but not limitation, bus 540 may include accelerated graphics end (Accelerated Graphics Port, AGP) or other graphics bus, enhanced industry standard architecture (Extended Industry Standard Architecture, EISA) bus, front side bus (Front Side Bus, FSB), hyper transport (Hyper Transport, HT) interconnection, industry standard architecture (Industry Standard Architecture, ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations. In appropriate cases, bus 540 may include one or more buses. Although the present application embodiment describes and shows specific bus, the application considers any suitable bus or interconnection.

[0161] The base station can execute the cell switching method in the embodiment of the present application after obtaining the measurement information reported by at least one first electronic device in N preset periods, thereby realizing the combination Figures 1-3 The cell switching method described and Figure 4 A cell switching device is described.

[0162] In addition, in conjunction with the cell switching method in the above embodiment, the embodiment of the present application can provide a computer storage medium for implementation. The computer storage medium stores computer program instructions; when the computer program instructions are executed by a processor, any one of the cell switching methods in the above embodiment is implemented.

[0163] It should be understood that the present application is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and illustrated as examples. However, the method process of the present application is not limited to the specific steps described and illustrated. Those skilled in the art can make various changes, modifications, and additions, or change the order of the steps after understanding the spirit of the present application.

[0164] The functional blocks shown in the above-described block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link via a data signal carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROMs, flash memories, erasable ROMs (EROMs), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0165] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps. In other words, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0166] Aspects of the present invention are described above with reference to the flowchart and / or block diagram of the method, device (system) and computer program product according to the embodiment of the present invention.It should be understood that each box in the flowchart and / or block diagram and the combination of each box in the flowchart and / or block diagram can be implemented by computer program instructions.These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer or other programmable data processing device to produce a machine so that these instructions executed via the processor of the computer or other programmable data processing device enable the implementation of the function / action specified in one or more boxes of the flowchart and / or block diagram.Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor or a field programmable logic circuit.It is also understood that each box in the block diagram and / or flowchart and the combination of the boxes in the block diagram and / or flowchart can also be implemented by the dedicated hardware that performs the specified function or action, or can be implemented by the combination of dedicated hardware and computer instructions.

[0167] The above merely describes a specific implementation of the present application. Those skilled in the art can clearly understand the specific working processes of the system, modules and units described above for the convenience and brevity of description, and can refer to the corresponding processes in the foregoing method embodiments, which will not be described herein again. It should be understood that the protection scope of the present application is not limited to this, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application.

Claims

1. A cell handover method, characterized in that: include: Obtaining measurement information reported by at least one first electronic device in N preset periods, the measurement information including first information of a first cell occupied by the first electronic device in the corresponding preset period and location information of the first electronic device, where N is an integer greater than 1; determining, based on first information about the first cell occupied by each of the first electronic devices in each preset period, whether a fast fading scenario exists in the first cell occupied by a target electronic device, the target electronic device being any of the first electronic devices; In a case where a fast fading scenario exists in the first cell occupied by the target electronic device, determining a first distance between the target electronic device and the fast fading scenario in each preset period according to the location information of the target electronic device in each preset period and the location information of the fast fading scenario; Before the target electronic device enters the fast fading scenario, based on each of the first distances and the first cell occupied by the target electronic device in each preset period, the serving cell of the target electronic device is switched from the first cell to a second cell, where the second cell is adjacent to the first cell and located within the fast fading scenario.

2. The method according to claim 1, characterized in that The first information includes signal strength; The determining, based on the first information of the first cell occupied by each of the first electronic devices in each preset period, whether the first cell occupied by the target electronic device has a fast fading scenario includes: Determining whether a fast fading set exists based on first cells occupied by each first electronic device in each preset period and signal strength of the first cell, where the fast fading set includes M first electronic devices, the target electronic device is any one of the M first electronic devices, and M is an integer greater than 1; In the case where a fast fading set exists, determining that a fast fading scenario exists in the first cell occupied by the target electronic device; In a case where there is no fast fading set, it is determined that the first cell occupied by the target electronic device does not have a fast fading scenario.

3. The method according to claim 2, characterized in that N=3, the preset period includes a first preset period, a second preset period and a third preset period; The determining whether a fast fading set exists according to the first cells occupied by each of the first electronic devices in each preset period and the signal strength of the first cells includes: Initialize the first set; For each first electronic device, if the first cell occupied by the first electronic device in the first preset period is the same as the first cell occupied by the first electronic device in the second preset period, the neighboring cell of the first cell occupied by the first electronic device in the second preset period is different from the neighboring cell of the first cell occupied by the first electronic device in the third preset period, and the signal strength of the first electronic device in the second preset period is less than a preset signal strength, the first electronic device is stored in the first set; When the number of first electronic devices included in the first set is greater than a first threshold, the first set is determined as a fast fading set.

4. The method according to claim 3, characterized in that The step of determining the first set as a fast fading set when the number of first electronic devices included in the first set is greater than a first threshold includes: When the number of first electronic devices included in the first set is greater than a first threshold, determining the first set as a candidate set; determining a first movement distance of the first electronic device from the first preset period to the second preset period based on the position information of the first electronic device in the first preset period and the position information of the first electronic device in the second preset period; determining a second movement distance of the first electronic device from the second preset period to the third preset period based on the position information of the first electronic device in the second preset period and the position information of the first electronic device in the third preset period; When at least one of the first moving distance and the second moving distance is greater than a third threshold, the first electronic device is deleted from the candidate set to obtain a fast fading set.

5. The method according to claim 2, characterized in that Before determining, based on the location information of the target electronic device in each preset period and the location information of the fast fading scenario, a first distance between the target electronic device and the fast fading scenario in each preset period, the method further includes: determining, according to the location information of each of the first electronic devices in the fast fading set in a target preset period, a first area in which each of the first electronic devices in the fast fading set is located; The location information of the center of the first area is determined as the location information of the fast fading scene corresponding to the fast fading set.

6. The method according to claim 1, characterized in that The switching of the serving cell of the target electronic device from the first cell to the second cell according to each of the first distances and the first cell occupied by the target electronic device in each preset period includes: When a first cell occupied by the target electronic device in each preset period is the same as a cell in which the fast fading scenario is located, and a neighboring cell of the first cell occupied by the target electronic device in the Nth preset period is located in the fast fading scenario, and a signal strength of the neighboring cell is greater than a preset signal strength, the serving cell of the target electronic device is switched from the first cell to a second cell according to each first distance.

7. The method according to claim 6, characterized in that The switching of the serving cell of the target electronic device from the first cell to the second cell according to each of the first distances includes: When the first distance of the target electronic device in each preset period decreases successively and the first distance of the target electronic device in the Nth preset period is less than a second threshold, determining a neighboring cell of the first cell occupied by the target electronic device in the Nth preset period as the second cell; A switching instruction is sent to the target electronic device, so that the target electronic device switches a serving cell from the first cell to the second cell based on the switching instruction, wherein the switching instruction includes the second cell.

8. A cell switching device, characterized in that: include: Get module, determine module and switch module; The acquisition module is configured to acquire measurement information reported by at least one first electronic device in N preset periods, the measurement information including first information of a first cell occupied by the first electronic device in the corresponding preset period and location information of the first electronic device, where N is an integer greater than 1; The determining module is configured to determine whether a fast fading scenario exists in the first cell occupied by a target electronic device based on first information of the first cell occupied by each of the first electronic devices in each preset period, where the target electronic device is any one of the first electronic devices; The determining module is further configured to determine, when a fast fading scenario exists in the first cell occupied by the target electronic device, a first distance between the target electronic device and the fast fading scenario in each preset period based on the location information of the target electronic device in each preset period and the location information of the fast fading scenario; a switching module, configured to, before the target electronic device enters the fast fading scenario, switch the serving cell of the target electronic device from the first cell to a second cell based on each of the first distances and the first cell occupied by the target electronic device in each preset period, where the second cell is adjacent to the first cell and located within the fast fading scenario.

9. A base station, characterized in that: include: The base station includes: a processor, and a memory storing computer program instructions; The processor reads and executes the computer program instructions to implement the cell switching method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer storage medium stores computer program instructions, and when the computer program instructions are executed by a processor, the cell switching method according to any one of claims 1 to 7 is implemented.

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