CN111918352A

CN111918352A - Cell switching method, device, terminal and storage medium

Info

Publication number: CN111918352A
Application number: CN202010781262.1A
Authority: CN
Inventors: 张振宇
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2020-11-10

Abstract

The present application belongs to the field of communications technologies, and in particular, to a cell handover method, apparatus, terminal, and storage medium. The cell switching method is applied to a terminal and comprises the following steps: acquiring first signal strength and channel quality of a current network-residing cell, and acquiring second signal strength of a neighboring cell of the network-residing cell; and when the second signal strength is higher than the first signal strength and the channel quality does not meet the preset quality requirement, sending a forecasting event to network equipment, wherein the forecasting event is used for indicating the network equipment to switch the current network-resident cell to the adjacent cell. Therefore, the corresponding trigger time does not need to be waited in the cell switching process, the forecast event can be sent before the wireless link of the terminal fails, so that the network equipment can be indicated to carry out cell switching, the probability of the wireless link failure can be reduced, the cell switching efficiency can be improved, and the use experience of a user can be improved.

Description

Cell switching method, device, terminal and storage medium

Technical Field

The present application belongs to the field of communications technologies, and in particular, to a cell handover method, apparatus, terminal, and storage medium.

Background

With the development of wireless communication technology, terminals may provide normal communication services using a cellular data structure. At this time, the user can use the terminal to browse information on the web page and also can use the terminal to play games.

A terminal capable of providing a normal communication service must start camping on one cell. Specifically, the terminal may obtain signal strengths of a plurality of cells within a preset range, and may select one of the cells to camp on based on the obtained signal strength values.

Disclosure of Invention

The embodiment of the application provides a cell switching method, a cell switching device, a terminal and a storage medium, which can improve the cell switching efficiency. The technical scheme comprises the following steps:

in a first aspect, an embodiment of the present application provides a cell handover method, which is applied to a terminal, and the method includes:

acquiring first signal strength and channel quality of a current network-residing cell, and acquiring second signal strength of a neighboring cell of the network-residing cell;

and when the second signal strength is higher than the first signal strength and the channel quality does not meet the preset quality requirement, sending a forecasting event to network equipment, wherein the forecasting event is used for indicating the network equipment to switch the current network-resident cell to the adjacent cell.

In a second aspect, an embodiment of the present application provides a cell switching apparatus, which is applied to a terminal, and the apparatus includes:

the device comprises a signal strength acquisition unit, a signal strength acquisition unit and a signal strength acquisition unit, wherein the signal strength acquisition unit is used for acquiring first signal strength and channel quality of a current network-residing cell and acquiring second signal strength of a neighboring cell of the network-residing cell;

and an event sending unit, configured to send a prediction event to a network device when the second signal strength is higher than the first signal strength and the channel quality does not meet a preset quality requirement, where the prediction event is used to instruct the network device to switch the current network-residing cell to the neighboring cell.

In a third aspect, an embodiment of the present application provides a cell handover method, which is applied to a network device, and the method includes:

receiving a forecast event sent by a terminal;

and switching the current network-residing cell of the terminal to a neighboring cell of the network-residing cell based on the forecast event, wherein the second signal intensity of the neighboring cell is higher than the first signal intensity of the network-residing cell, and the channel quality of the network-residing cell does not meet the preset quality requirement.

In a fourth aspect, an embodiment of the present application provides a terminal, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the method of any one of the above first aspects when executing the computer program.

In a fifth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, and the computer program is used for implementing any one of the methods described above when executed by a processor.

In a sixth aspect, embodiments of the present application provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, where the computer program is operable to cause a computer to perform some or all of the steps as described in the first aspect of embodiments of the present application. The computer program product may be a software installation package.

The embodiment of the application provides a cell switching method, wherein when the second signal intensity of a neighboring cell of a network-residing cell is higher than the first signal intensity of a current network-residing cell and the channel quality of the current network-residing cell does not meet a preset quality requirement, a measurement and report event can be directly sent to network equipment, so that the network equipment can switch the current network-residing cell to the neighboring cell. Therefore, the corresponding trigger time does not need to be waited in the cell switching process, the forecast event can be sent before the wireless link of the terminal fails, so that the network equipment can be indicated to carry out cell switching, the probability of the wireless link failure can be reduced, the cell switching efficiency can be improved, and the use experience of a user can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view illustrating an application scenario of a cell handover method or a cell handover apparatus according to an embodiment of the present application;

fig. 2 is a flowchart illustrating a cell handover method according to an embodiment of the present application;

FIG. 3 is a schematic diagram illustrating an example of a terminal interface according to an embodiment of the present application;

fig. 4 is a flowchart illustrating a cell handover method according to an embodiment of the present application;

fig. 5 is a flowchart illustrating a cell handover method according to an embodiment of the present application;

fig. 6 is a flowchart illustrating a cell handover method according to an embodiment of the present application;

fig. 7 is a schematic diagram illustrating an example of a movement track of a terminal according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a cell switching apparatus according to an embodiment of the present application;

fig. 9 is a flowchart illustrating a cell handover method according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a cell switching apparatus according to an embodiment of the present application;

fig. 11 shows a schematic structural diagram of a terminal according to an embodiment of the present application.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 is a schematic view illustrating an application scenario of a cell handover method or a cell handover apparatus according to an embodiment of the present application. As shown in fig. 1, the current location of the terminal 100 is covered with a plurality of cells, which may be, for example, a Q cell, a W cell, an E cell, and an R cell, respectively. Wherein the signal strength values of Q cell, W cell, E cell and R cell may be different. When the terminal is in the coverage areas of the Q cell, the W cell, the E cell and the R cell, the terminal can obtain the signal strength values of the Q cell, the W cell, the E cell and the R cell and send the signal strength values of the Q cell, the W cell, the E cell and the R cell to the network equipment. When the network device receives the signal strength values of the Q cell, the W cell, the E cell, and the R cell sent by the terminal 100, the network device may camp the terminal 100 in the cell corresponding to the maximum signal strength value, and at this time, the user may use the terminal 100 to play a game or browse information.

According to some embodiments, when the terminal is camped on a camped cell, that is, the terminal is in an LTE network connection state, the network device sends a configuration instruction for configuring an a3 event to the terminal. The A3 event refers to that the signal strength of the neighboring cell is higher than that of the current camping cell and lasts for a preset time, where the higher signal strength value and the preset time may be set based on the configuration instruction, and the preset time is the trigger time of the A3 event.

It is easy to understand that the signal strength of each cell may change continuously during the terminal moving process or in a complex network environment. Therefore, when the terminal detects that the current event satisfies the A3 event, the terminal can send a measure A3 event to the network device. But the terminal needs to wait for a trigger time before it sends an a3 probation event to the network device. However, due to interference of signals of neighboring cells on signals of the residential cell, when the trigger time is too long or the anti-interference capability of the residential cell is weak, and when the trigger time is not up, a wireless link of the terminal fails, the terminal drops the network, and the terminal cannot send an a3 report, so that the switching efficiency of the residential cell is low, and the use experience of a user is affected. The embodiment of the application provides a cell switching method, which can improve the switching efficiency of a cell.

The cell handover method provided by the embodiment of the present application will be described in detail below with reference to fig. 2 to fig. 7. The execution body of the embodiment shown in fig. 2-7 may be, for example, a terminal.

Please refer to fig. 2, which is a flowchart illustrating a cell handover method according to an embodiment of the present disclosure. As shown in fig. 2, the method of the embodiment of the present application may include the following steps S101 to S102.

S101, acquiring a first signal strength and channel quality of a current network-residing cell, and acquiring a second signal strength of a neighboring cell of the network-residing cell.

According to some embodiments, the currently camped cell refers to a network cell in which the terminal currently camped. The current camping cell may be a Long Term Evolution (LTE) system cell. LTE is a long term evolution of UMTS (Universal Mobile Telecommunications System) technical standards established by The 3rd Generation Partnership Project (3 GPP) organization, and can improve The communication speed of a terminal.

It is easy to understand that the neighboring cell of the camping cell refers to a cell whose coverage area overlaps with the current camping cell and has a handover relationship. The neighboring cell in the embodiment of the present application is a cell, and the cell may be one of at least one neighboring cell of a currently camped network cell. The terminal may obtain the neighboring cell based on the obtaining rule. The preset rule includes, but is not limited to, according to a preset frequency point, a preset movement track, and the like.

Optionally, the terminal in the embodiment of the present application includes but is not limited to: personal computers, tablet computers, handheld devices, in-vehicle devices, wearable devices, computing devices or other processing devices connected to a wireless modem, and the like. Terminals can be called different names in different networks, for example: user equipment, access terminal, subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent or user equipment, cellular telephone, cordless telephone, Personal Digital Assistant (PDA), or the like.

According to some embodiments, when the terminal is camped on a network cell, the network cell is the current camped cell. The terminal can obtain the first signal strength and the channel quality of the current network-residing cell and obtain the second signal strength of the adjacent cell of the network-residing cell. The channel quality is the channel quality of the current network-camped cell, and is not specific to a fixed channel quality. For example, when the current network-camped cell changes or the channel quality of the current network-camped cell changes, the channel quality also changes accordingly. The channel quality includes, but is not limited to, at least one of a reference signal received quality and a signal-to-noise ratio.

And S102, when the second signal strength is higher than the first signal strength and the channel quality does not meet the preset quality requirement, sending a forecasting event to the network equipment, wherein the forecasting event is used for indicating the network equipment to switch the current network-residing cell to the adjacent cell.

According to some embodiments, the network device is a base station. A base station, i.e., a public mobile communication base station, is a form of a radio station, and refers to a radio transceiver station that performs information transfer with a mobile phone terminal through a mobile communication switching center in a certain radio coverage area.

It is easy to understand that, when the terminal obtains the first signal strength and the channel quality of the current network-residing cell and obtains the second signal strength of the neighboring cell of the network-residing cell, the terminal may detect whether the second signal strength is higher than the first signal strength and whether the channel quality of the current network-residing cell meets the preset quality requirement. When the terminal detects that the second signal strength is higher than the first signal strength and the channel quality of the current network-residing cell does not meet the preset quality requirement, the terminal may generate a prediction event, where the prediction event is used to instruct the network device to switch the current network-residing cell to the neighboring cell. Therefore, when the terminal generates the forecast event, the terminal can send the forecast event to the network equipment. When the network device receives the forecast event, the network device may switch the current network-residing cell of the terminal to the neighboring cell.

Optionally, the current network-camped cell of the terminal may be, for example, an a cell, and a neighboring cell of the network-camped cell acquired by the terminal may be, for example, a B cell. The channel quality of the a cell acquired by the terminal may be, for example, a signal-to-noise ratio (SNR) of the a cell, and the SNR may be, for example, 10. The preset quality requirement set by the terminal may be, for example, a signal-to-noise ratio of greater than-6. The signal strength of the terminal acquired to the a cell may be, for example, -85dbm, and the signal strength of the B cell may be, for example, -80 dbm. The terminal can detect whether the signal intensity of the B cell is higher than that of the A cell and whether the signal-to-noise ratio of the A cell meets the requirement of a preset signal-to-noise ratio.

It is easily understood that when the terminal detects that the signal strength-80 dbm of the B cell is higher than the signal strength-85 dbm of the a cell, and the signal-to-noise ratio-10 of the a cell is lower than the preset quality requirement, the terminal may generate a prediction event. The reporting event may be, for example, a handover of an a cell to a B cell. When the terminal generates a forecast event, the terminal may send the forecast event to the network device. When the network device receives the forecast event, the network device can switch the current network-residing cell A of the terminal to the cell B.

According to some embodiments, when the terminal detects that the second signal strength is higher than the first signal strength and the channel quality does not meet the preset quality requirement, before the terminal sends the forecast event to the network device, the terminal may further send a prompt message, where the prompt message is used to prompt that the forecast event has been generated, and whether the forecast event is sent to the network device. At this time, an example schematic diagram of the terminal interface may be as shown in fig. 3. When the terminal receives a confirmation instruction for the prompt information, the terminal can send the forecast event to the network device.

It is easy to understand that, when the terminal detects that the second signal strength is higher than the first signal strength and the terminal does not detect that the channel quality does not meet the preset quality requirement, the terminal may send a prediction event to the network device after a preset duration, where the prediction event is used to instruct the network device to switch the current network-residing cell to the neighboring cell. The preset duration may be set by the terminal by receiving configuration information of the network device.

The embodiment of the application provides a cell switching method, wherein when the second signal intensity of a neighboring cell of a network-residing cell is higher than the first signal intensity of a current network-residing cell and the channel quality of the current network-residing cell does not meet a preset quality requirement, a measurement and report event can be directly sent to network equipment, so that the network equipment can switch the current network-residing cell to the neighboring cell. Therefore, the corresponding trigger time does not need to be waited in the cell switching process, the forecast event can be sent before the wireless link of the terminal fails, so that the network equipment can be indicated to carry out cell switching, the probability of the wireless link failure can be reduced, the cell switching efficiency can be improved, and the use experience of a user can be improved. In addition, in cell switching, the terminal does not need to wait for corresponding trigger time, and can send the forecast event when the channel quality does not meet the requirement, so that the probability of sending failure of the forecast event caused by the influence of adjacent cell signals on the current network-resident cell can be reduced, the cell switching time can be reduced, and the cell switching efficiency can be improved.

Please refer to fig. 4, which is a flowchart illustrating a cell handover method according to an embodiment of the present disclosure. As shown in fig. 4, the method of the embodiment of the present application may include the following steps S201 to S203.

S201, obtaining a first signal strength and a channel quality of a current network-residing cell, and obtaining a second signal strength of a neighboring cell of the network-residing cell, wherein the channel quality comprises at least one of a reference signal receiving quality and a signal-to-noise ratio.

The specific process is as described above, and is not described herein again.

According to some embodiments, please refer to fig. 5, which provides a flowchart of a cell handover method according to an embodiment of the present application. As shown in fig. 5, the method according to the embodiment of the present application may further include the following steps S301 to S302 before acquiring the first signal strength and the channel quality of the current camping cell and acquiring the second signal strength of the neighboring cell of the camping cell. S301, acquiring at least one network cell corresponding to a preset frequency point, and acquiring the signal intensity of each network cell in the at least one network cell, wherein the signal intensity of the at least one network cell is greater than a first signal intensity; s302, determining the network cell corresponding to the maximum signal intensity value in the signal intensities of the network cells as a neighboring cell.

It is easy to understand that before the terminal acquires the first signal strength and the channel quality of the current network-residing cell and acquires the second signal strength of the neighboring cell of the network-residing cell, the terminal may acquire at least one network cell corresponding to the preset frequency point and acquire the signal strength of each network cell in the at least one network cell. The signal strength of at least one network cell is greater than the first signal strength, that is, the service quality of at least one network cell is higher than that of the current network-residing cell. When the terminal acquires the signal strength of each network cell in the at least one network cell, the terminal may sequence the signal strength of each network cell in the at least one network cell to determine the maximum value of the signal strength in the signal strength of each network cell. The terminal may also determine the signal strength maximum among the signal strengths of the network cells directly based on a maximum determination algorithm. When the terminal determines the maximum signal strength value in the signal strengths of the network cells, the terminal may determine the network cell corresponding to the maximum signal strength value in the signal strengths of the network cells as the neighboring cell.

Optionally, the preset frequency point may be 2150MHz, for example. Before the terminal acquires the first signal strength and the channel quality of the current network-residing cell and acquires the second signal strength of the neighboring cell of the network-residing cell, the terminal may acquire at least one network cell corresponding to the preset frequency point 2150 MHz. The at least one network cell corresponding to the preset frequency point 2150MHz obtained by the terminal may be, for example, a Z network cell, an X network cell, a C network cell, and a V network cell. The terminal can obtain the signal intensity values of the Z network cell, the X network cell, the C network cell and the V network cell. When the terminal obtains the signal strength values of the Z network cell, the X network cell, the C network cell, and the V network cell, the terminal may determine a maximum value of the signal strength values of the Z network cell, the X network cell, the C network cell, and the V network cell by using a maximum value determination algorithm. And the terminal determines that the network cell corresponding to the maximum signal intensity value can be determined as the neighbor cell of the current resident network cell. The network cell corresponding to the maximum signal strength value determined by the terminal may be, for example, a V network cell, and at this time, the terminal may determine that the V network cell is a neighboring cell.

Referring to fig. 6, a flow chart of a cell handover method according to some embodiments is provided. As shown in fig. 6, the method according to the embodiment of the present application may further include the following steps S401 to S403 before obtaining the first signal strength and the channel quality of the current camping cell and obtaining the second signal strength of the neighboring cell of the camping cell. S401, acquiring the moving speed and the moving path of the terminal; s402, acquiring at least one network cell corresponding to the moving speed and the moving path, and acquiring the signal intensity of each network cell in the at least one network cell, wherein the signal intensity of the at least one network cell is greater than the first signal intensity; and S403, determining the network cell corresponding to the maximum signal intensity value in the signal intensities of the network cells as a neighboring cell.

It is easy to understand that, before the terminal acquires the first signal strength and the channel quality of the current network-camped cell and acquires the second signal strength of the neighboring cell of the network-camped cell, the terminal may acquire the moving speed and the moving path of the terminal. When the terminal acquires the moving speed and the moving path of the terminal, the terminal may acquire at least one network cell corresponding to the moving speed and the moving path, and acquire the signal strength of each network cell in the at least one network cell. The signal strength of at least one network cell is greater than the first signal strength, that is, the service quality of at least one network cell is higher than that of the current network-residing cell. When the terminal acquires the signal strength of each network cell in the at least one network cell, the terminal may sequence the signal strength of each network cell in the at least one network cell to determine the maximum value of the signal strength in the signal strength of each network cell. The terminal may also determine the signal strength maximum among the signal strengths of the network cells directly based on a maximum determination algorithm. When the terminal determines the maximum signal strength value in the signal strengths of the network cells, the terminal may determine the network cell corresponding to the maximum signal strength value in the signal strengths of the network cells as the neighboring cell.

Optionally, before the terminal acquires the first signal strength and the channel quality of the current network-camped cell and acquires the second signal strength of the neighboring cell of the network-camped cell, the terminal may acquire the moving speed and the moving path of the terminal. The moving speed acquired by the terminal may be, for example, 40 km/h. When the terminal acquires the movement track of the terminal, the terminal may acquire the movement track based on the position, the movement direction, the road facility and other conditions where the terminal is located, and the terminal may also acquire the movement track based on the navigation path input by the user. A distance diagram of the movement path acquired by the terminal may be as shown in fig. 7. The at least one network cell corresponding to the moving speed and the moving path of the terminal acquired by the terminal may be, for example, an H network cell, a J network cell, a K network cell, and an L network cell. The terminal can obtain the signal strength values of an H network cell, a J network cell, a K network cell and an L network cell. When the terminal acquires the signal strength values of the H network cell, the J network cell, the K network cell, and the L network cell, the terminal may determine a maximum value of the signal strength values of the H network cell, the J network cell, the K network cell, and the L network cell by using a maximum value determination algorithm. And the terminal determines that the network cell corresponding to the maximum signal intensity value can be determined as the neighbor cell of the current resident network cell. When the network cell corresponding to the maximum signal strength value determined by the terminal may be, for example, a J network cell, the terminal may determine that the J network cell is determined to be a neighboring cell.

S202, when the reference signal receiving quality is less than or equal to the signal receiving quality threshold and/or the signal-to-noise ratio is less than or equal to the signal-to-noise ratio threshold, sending a forecasting event to the network equipment, wherein the forecasting event is used for indicating the network equipment to switch the current network-residing cell to the adjacent cell.

According to some embodiments, the channel quality comprises at least one of a reference signal received quality and a signal-to-noise ratio. When the terminal acquires the channel quality of the current network-residing cell, the terminal can acquire at least one of the reference signal receiving quality and the signal-to-noise ratio, that is, the terminal can acquire only the reference signal receiving quality, only the signal-to-noise ratio, and both the reference signal receiving quality and the signal-to-noise ratio. .

It is easy to understand that, when the terminal acquires the channel quality of the current network-camped cell and the terminal acquires only the reference signal reception quality, the terminal may send the probe event to the network device when the second signal strength is higher than the first signal strength and when the reference signal reception quality is less than or equal to the signal reception quality threshold. And the measuring and reporting event is used for indicating the network equipment to switch the current network-residing cell to the adjacent cell. When the network device receives the forecast event, the network device can switch the current network-residing cell of the terminal to the neighboring cell.

Optionally, the first signal reception quality threshold set by the terminal may be, for example, -22 dBm. The reference signal reception quality that the terminal acquires to the current camping cell may be, for example, -23 dBm. The current network-camping cell of the terminal may be an O cell, for example, and the current network-camping cell may be a P cell, for example. When the terminal detects that the signal intensity of the P cell is greater than that of the O cell and that the reference signal receiving quality of the O cell is-23 dBm less than the signal receiving quality threshold value-22 dBm, the terminal can generate a forecasting event and send the forecasting event to the network equipment. The event may be, for example, switching the current camping cell of the terminal from the O cell to the P cell. When the network device receives the forecast event, the network device can switch the current network-residing cell of the terminal to the neighboring cell.

It is easy to understand that, when the terminal acquires the channel quality of the current network-residing cell and the terminal only acquires the signal-to-noise ratio, the terminal may send a measurement and report event to the network device when the second signal strength is higher than the first signal strength and the signal-to-noise ratio is less than or equal to the signal-to-noise ratio threshold, where the measurement and report event is used to instruct the network device to switch the current network-residing cell to the neighboring cell. When the network device receives the forecast event, the network device can switch the current network-residing cell of the terminal to the neighboring cell.

It is easy to understand that, when the terminal acquires the channel quality of the current network-residing cell and the terminal simultaneously acquires the reference signal reception quality and the signal-to-noise ratio, when the second signal strength is higher than the first signal strength, and when the reference signal reception quality is less than or equal to the signal reception quality threshold and the signal-to-noise ratio is less than or equal to the signal-to-noise ratio threshold, a forecasting event is sent to the network device, and the forecasting event is used for instructing the network device to switch the current network-residing cell to the neighboring cell.

Alternatively, the signal reception quality threshold set by the terminal may be, for example, -22 dBm. The reference signal reception quality of the current camping cell acquired by the terminal may be-23 dBm, for example. The signal-to-noise ratio threshold set by the terminal may be, for example, -6. The signal-to-noise ratio of the current camping cell acquired by the terminal may be-7, for example. The current network-camping cell of the terminal may be an O cell, for example, and the current network-camping cell may be a P cell, for example. When the terminal detects that the signal intensity of the P cell is greater than that of the O cell, the reference signal receiving quality-23 dBm of the O cell is less than the signal receiving quality threshold value-22 dBm, and the signal-to-noise ratio-7 of the O cell is less than the signal-to-noise ratio threshold value-6, the terminal can generate a forecasting event and send the forecasting event to the network equipment. When the network device receives the forecast event, the network device can switch the current network-residing cell of the terminal to the neighboring cell.

According to some embodiments, when the second signal strength is higher than the first signal strength and the channel quality does not meet the preset quality requirement, the terminal may further set the signal reception quality threshold and the signal-to-noise ratio threshold by using a threshold setting algorithm based on the model, the performance, and the experimental data of the terminal before sending the measurement and report event to the network device. Including but not limited to laboratory data and real-time empirical data.

S203, when it is detected that the current network-residing cell is not switched to the neighbor cell within the preset time length, the forecast event is sent to the network equipment again.

According to some embodiments, after the terminal sends the reporting event to the network device, the terminal may detect whether the current network-residing cell is switched to the neighboring cell within a preset time length. And when the terminal detects that the current network-residing cell is not switched to the adjacent cell within the preset time length, the terminal sends the forecast event to the network equipment again. Before the connection of the wireless link fails, the terminal can send the forecast event to the network equipment again, so that the probability of the wireless link failure of the terminal can be reduced.

It is easily understood that the preset time period set by the terminal may be, for example, 100 ms. After the terminal sends the forecast event to the network device, the terminal may detect whether the current network-residing cell is switched to the neighboring cell within 100 ms. The event may be, for example, switching the current camping cell of the terminal from the O cell to the P cell. When the terminal detects that the current network-residing cell is not switched to the neighboring cell within the preset time length of 100ms, the terminal can send the forecast event to the network equipment again.

The embodiment of the application provides a cell switching method, wherein when the second signal strength is higher than the first signal strength and the reference signal reception quality is less than or equal to a signal reception quality threshold and/or the signal-to-noise ratio is less than or equal to a signal-to-noise ratio threshold, a terminal can send a prediction event to network equipment, so that the terminal can complete sending of the prediction event before cell switching is not completed, waiting for a trigger time is not needed, and the cell switching efficiency can be improved. In addition, when it is detected within a preset time period that the current network-residing cell is not switched to the neighboring cell, the terminal can send the forecast event to the network equipment again, and the forecast event can be sent to the network equipment before the terminal radio link fails due to poor channel quality of the terminal, so that the probability of the terminal radio link failure can be reduced, and the use experience of a user can be improved while the cell switching efficiency is improved.

The cell switching apparatus provided in the embodiment of the present application will be described in detail below with reference to fig. 8. It should be noted that the cell switching apparatus shown in fig. 8 is used for executing the method of the embodiments shown in fig. 2 to fig. 7 of the present application, and for convenience of description, only the portion related to the embodiments of the present application is shown, and details of the specific technology are not disclosed, please refer to the embodiments shown in fig. 2 to fig. 7 of the present application.

Please refer to fig. 8, which illustrates a schematic structural diagram of a cell switching apparatus according to an embodiment of the present application. The cell switching apparatus 800 may be implemented by software, hardware or a combination of both as all or a part of a user terminal. According to some embodiments, the cell switching apparatus 800 includes a signal strength obtaining unit 801 and an event sending unit 802, and is specifically configured to:

a signal strength obtaining unit 801, configured to obtain a first signal strength and a channel quality of a current network-camped cell, and obtain a second signal strength of an adjacent cell of the network-camped cell;

an event sending unit 802, configured to send a prediction event to the network device when the second signal strength is higher than the first signal strength and the channel quality does not meet the preset quality requirement, where the prediction event is used to instruct the network device to switch the current network-residing cell to the neighboring cell.

According to some embodiments, the channel quality includes at least one of a reference signal reception quality and a signal-to-noise ratio, and the event sending unit 802 is configured to, when the channel quality does not meet a preset quality requirement and a measurement and report event is sent to a network device, specifically:

and when the reference signal receiving quality is less than or equal to the signal receiving quality threshold value and/or the signal-to-noise ratio is less than or equal to the signal-to-noise ratio threshold value, sending a forecast event to the network equipment.

According to some embodiments, the event sending unit 802 is further configured to, after sending the forecast event to the network device when the channel quality does not meet the preset quality requirement, further include:

and when detecting that the current network-residing cell is not switched to the adjacent cell within the preset time length, re-sending the forecast event to the network equipment.

According to some embodiments, the cell switching apparatus 800 further includes a threshold setting unit 803, configured to set the signal reception quality threshold and the signal-to-noise ratio threshold by using a threshold setting algorithm based on the model, the performance, and the experimental data of the terminal before sending the forecast event to the network device when the second signal strength is higher than the first signal strength and the channel quality does not meet the preset quality requirement.

According to some embodiments, the cell switching apparatus 800 further includes a neighboring cell determining unit 804, configured to, before acquiring the first signal strength and the channel quality of the current camped cell and acquiring the second signal strength of the neighboring cell of the camped cell, specifically:

acquiring at least one network cell corresponding to a preset frequency point, and acquiring the signal intensity of each network cell in the at least one network cell, wherein the signal intensity of the at least one network cell is greater than the first signal intensity;

and determining the network cell corresponding to the maximum signal intensity value in the signal intensity of each network cell as the adjacent cell.

According to some embodiments, the neighboring cell determining unit 804 is configured to, before acquiring the first signal strength and the channel quality of the current camped cell and acquiring the second signal strength of the neighboring cell of the camped cell, specifically:

acquiring the moving speed and the moving path of the terminal;

acquiring at least one network cell corresponding to the moving speed and the moving path, and acquiring the signal intensity of each network cell in the at least one network cell, wherein the signal intensity of the at least one network cell is greater than the first signal intensity;

The embodiment of the application provides a cell switching device, wherein a signal strength acquisition unit acquires a first signal strength and a channel quality of a current network-residing cell and acquires a second signal strength of a neighboring cell of the network-residing cell, and an event sending unit can send a forecast event to network equipment when the second signal strength is higher than the first signal strength and the channel quality does not meet a preset quality requirement, so that the network equipment can switch the current network-residing cell to the neighboring cell. Therefore, the corresponding trigger time does not need to be waited in the cell switching process, the forecast event can be sent before the wireless link of the terminal fails, so that the network equipment can be indicated to carry out cell switching, the probability of the wireless link failure can be reduced, the cell switching efficiency can be improved, and the use experience of a user can be improved.

The cell handover method provided in the embodiment of the present application will be described in detail below with reference to fig. 9. The execution body of the embodiment shown in fig. 9 may be, for example, a network device.

Please refer to fig. 9, which is a flowchart illustrating a cell handover method according to an embodiment of the present application. As shown in fig. 9, the method of the embodiment of the present application may include the following steps S501 to S502.

S501, receiving a forecast event sent by a terminal.

According to some embodiments, when the terminal obtains the first signal strength and the channel quality of the current network-residing cell and obtains the second signal strength of the neighboring cell of the network-residing cell, the terminal may detect whether the second signal strength is higher than the first signal strength and whether the channel quality meets a preset quality requirement. When the terminal detects that the second signal strength is higher than the first signal strength and the channel quality does not meet the preset quality requirement, the terminal may generate a prediction event, where the prediction event is used to instruct the network device to switch the current network-residing cell to the neighboring cell. Therefore, when the terminal generates the forecast event, the terminal can send the forecast event to the network equipment. When the network device detects that the terminal sends a forecast event, the network device can receive the forecast event.

It is easy to understand that the current network-camped cell of the terminal may be, for example, a D cell, and the neighboring cell of the network-camped cell acquired by the terminal may be, for example, an F cell. The channel quality acquired by the terminal may be, for example, signal-to-noise ratio (SNR) of the D cell-10. The preset quality requirement set by the terminal may be, for example, a signal-to-noise ratio of greater than-6. The signal strength of the terminal acquired to the D cell may be, for example, -85dbm, and the signal strength of the F cell may be, for example, -80 dbm. The terminal can detect whether the signal intensity of the F cell is higher than that of the D cell and whether the signal-to-noise ratio of the D cell meets the requirement of a preset signal-to-noise ratio.

It is easy to understand that when the terminal detects that the signal strength-80 dbm of the F cell is higher than the signal strength-85 dbm of the D cell, and the signal-to-noise ratio-10 of the D cell is lower than the preset quality requirement, the terminal can generate a forecast event. The reporting event may be, for example, a handover of a D cell to an F cell. When the terminal generates a forecast event, the terminal may send the forecast event to the network device. When the network device detects that the terminal sends the forecast event, the network device can receive the forecast event.

S502, based on the forecast event, the current network-residing cell of the terminal is switched to the adjacent cell of the network-residing cell, the second signal intensity of the adjacent cell is higher than the first signal intensity of the network-residing cell, and the channel quality of the network-residing cell does not meet the preset quality requirement.

According to some embodiments, when the network device receives a prediction event sent by the terminal, the network device may switch the current network-residing cell of the terminal to the neighboring cell of the network-residing cell based on the prediction event. The second signal intensity of the neighboring cell is higher than the first signal intensity of the network-resident cell, and the channel quality of the network-resident cell does not meet the preset quality requirement.

It is easy to understand that, the event that the network device receives the measurement and report sent by the terminal may be, for example, switching the current camping cell D cell of the terminal to the neighboring cell F cell. When the network device receives the forecast event, the network device may switch the current camping cell D of the terminal to the neighboring cell F.

The embodiment of the application provides a cell switching method, a current network-resident cell of a terminal can be switched to a neighboring cell of a network-resident cell based on a forecast event sent by a receiving terminal, and the forecast event is generated when the second signal strength of the terminal determining the neighboring cell is higher than the first signal strength of the network-resident cell and the channel quality of the network-resident cell does not meet the preset quality requirement, so that corresponding trigger time does not need to be waited in the cell switching process, network equipment can receive the forecast event before a wireless link of the terminal fails, so that the cell switching can be directly carried out, the probability of wireless link failure of the terminal can be reduced, the cell switching efficiency can be improved, and the use experience of a user can be improved.

The cell switching apparatus provided in the embodiment of the present application will be described in detail with reference to fig. 10. It should be noted that the cell switching apparatus shown in fig. 10 is used for executing the method of the embodiment shown in fig. 9 of the present application, and for convenience of description, only the portion related to the embodiment of the present application is shown, and details of the specific technology are not disclosed, please refer to the embodiment shown in fig. 9 of the present application.

Please refer to fig. 10, which illustrates a schematic structural diagram of a cell switching apparatus according to an embodiment of the present application. The cell switching apparatus 1000 may be implemented by software, hardware or a combination of both as all or a part of a user terminal. According to some embodiments, the cell switching apparatus 1000 includes an event receiving unit 1001 and a cell switching unit 1002, and is specifically configured to:

an event receiving unit 1001 configured to receive a forecast event sent by a terminal;

the cell switching unit 1002 is configured to switch, based on the reporting event, the current network-camping cell of the terminal to a neighboring cell of the network-camping cell, where a second signal strength of the neighboring cell is higher than a first signal strength of the network-camping cell, and a channel quality of the network-camping cell does not meet a preset quality requirement.

The embodiment of the application provides a cell switching device, a measurement and report event sent by a terminal is received by an event receiving unit, the cell switching unit can switch a current network-residing cell of the terminal to a neighboring cell of the network-residing cell based on the measurement and report event, because the measurement and report event is generated when the second signal strength of the terminal in a determined neighboring cell is higher than the first signal strength of the network-residing cell, and the channel quality of the network-residing cell does not meet the preset quality requirement, no corresponding trigger time needs to be waited in the cell switching process, a network device can receive the measurement and report event before the wireless link of the terminal fails, so that the cell switching can be directly carried out, the probability of the wireless link failure of the terminal can be reduced, the cell switching efficiency can be improved, and the use experience of a user can be improved.

Please refer to fig. 11, which is a schematic structural diagram of a terminal according to an embodiment of the present disclosure. As shown in fig. 11, the terminal 1100 may include: at least one processor 1101, at least one network interface 1104, a user interface 1103, a memory 1105, at least one communication bus 1102.

Wherein a communication bus 1102 is used to enable connective communication between these components.

The user interface 1103 may include a Display screen (Display) and a GPS, and the optional user interface 1103 may also include a standard wired interface and a wireless interface.

The network interface 1104 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface).

Processor 1101 may include one or more processing cores, among other things. The processor 1101 connects various parts throughout the terminal 1100 using various interfaces and lines to perform various functions of the terminal 1100 and process data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 1105 and invoking data stored in the memory 1105. Optionally, the processor 1101 may be implemented in at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The processor 1101 may integrate one or more of a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a modem, and the like. Wherein, the CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed by the display screen; the modem is used to handle wireless communications. It is understood that the modem may not be integrated into the processor 1101, but may be implemented by a single chip.

The Memory 1105 may include a Random Access Memory (RAM) or a Read-Only Memory (Read-Only Memory). Optionally, the memory 1105 includes non-transitory computer-readable storage media. The memory 1105 may be used to store instructions, programs, code, sets of codes, or sets of instructions. The memory 1105 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the various method embodiments described above, and the like; the storage data area may store data and the like referred to in the above respective method embodiments. The memory 1105 may alternatively be at least one storage device located remotely from the processor 1101. As shown in fig. 11, a memory 1105, which is a type of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and an application program for cell handover.

In the terminal 1100 shown in fig. 11, the user interface 1103 is mainly used as an interface for providing input for a user, and acquiring data input by the user; and the processor 1101 may be configured to invoke the application program for cell handover stored in the memory 1105, and specifically perform the following operations:

and when the second signal strength is higher than the first signal strength and the channel quality does not meet the preset quality requirement, sending a forecasting event to the network equipment, wherein the forecasting event is used for indicating the network equipment to switch the current network-resident cell to the adjacent cell.

According to some embodiments, the channel quality includes at least one of a reference signal received quality and a signal-to-noise ratio, and the processor 1101 is configured to, when the channel quality does not meet a preset quality requirement and a prediction event is sent to the network device, specifically perform the following steps:

According to some embodiments, the processor 1101 is further specifically configured to, after sending the forecast event to the network device when the channel quality does not meet the preset quality requirement, perform the following steps:

According to some embodiments, the processor 1101 is further specifically configured to, before sending the forecast event to the network device when the second signal strength is higher than the first signal strength and the channel quality does not meet the preset quality requirement, perform the following steps:

and setting the receiving quality of the preset signal and the preset signal-to-noise ratio by adopting a threshold setting algorithm based on the model, the performance and the experimental data of the terminal.

According to some embodiments, before the processor 1101 is configured to obtain the first signal strength and the channel quality of the current camping cell and obtain the second signal strength of the neighboring cell of the camping cell, the processor 1101 is further specifically configured to perform the following steps:

acquiring the moving speed and the moving path of the terminal;

The embodiment of the application provides a terminal, which can directly send a forecast event to a network device when the second signal intensity of a neighboring cell of a resident network cell is higher than the first signal intensity of a current resident network cell and the channel quality of the current resident network cell does not meet a preset quality requirement, so that the network device can switch the current resident network cell to the neighboring cell. Therefore, the corresponding trigger time does not need to be waited in the cell switching process, the forecast event can be sent before the wireless link of the terminal fails, so that the network equipment can be indicated to carry out cell switching, the probability of the wireless link failure can be reduced, the cell switching efficiency can be improved, and the use experience of a user can be improved.

An embodiment of the present application further provides a network device, where the network device may include: at least one network device processor, at least one network interface, a user interface, a memory, at least one communication bus.

According to some embodiments, the processor of the network device is configured to invoke an application of cell handover stored in the memory and to perform in particular the following operations:

receiving a forecast event sent by a terminal;

The present application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the above-described method. The computer-readable storage medium may include, but is not limited to, any type of disk including floppy disks, optical disks, DVD, CD-ROMs, microdrive, and magneto-optical disks, ROMs, RAMs, EPROMs, EEPROMs, DRAMs, VRAMs, flash memory devices, magnetic or optical cards, nanosystems (including molecular memory ICs), or any type of media or device suitable for storing instructions and/or data.

Embodiments of the present application also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any one of the cell handover methods as set forth in the above method embodiments.

It is clear to a person skilled in the art that the solution of the present application can be implemented by means of software and/or hardware. The "unit" and "module" in this specification refer to software and/or hardware that can perform a specific function independently or in cooperation with other components, where the hardware may be, for example, a Field-ProgrammaBLE Gate Array (FPGA), an Integrated Circuit (IC), or the like.

It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some service interfaces, devices or units, and may be an electrical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned memory comprises: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by a program, which is stored in a computer-readable memory, and the memory may include: flash disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.

The above description is only an exemplary embodiment of the present disclosure, and the scope of the present disclosure should not be limited thereby. That is, all equivalent changes and modifications made in accordance with the teachings of the present disclosure are intended to be included within the scope of the present disclosure. Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A cell switching method is applied to a terminal, and the method comprises the following steps:

2. The method of claim 1, wherein the channel quality comprises at least one of a reference signal received quality and a signal-to-noise ratio, and wherein when the channel quality does not meet a preset quality requirement, sending a prediction event to a network device comprises:

and when the reference signal receiving quality is less than or equal to the signal receiving quality threshold and/or the signal-to-noise ratio is less than or equal to the signal-to-noise ratio threshold, sending the forecast event to the network equipment.

3. The method of claim 2, wherein after sending the forecast event to the network device when the channel quality does not meet the predetermined quality requirement, further comprising:

and when detecting that the current network-residing cell is not switched to the neighbor cell within a preset time length, re-sending the forecast event to the network equipment.

4. The method of claim 3, wherein before sending the probation event to the network device when the second signal strength is higher than the first signal strength and the channel quality does not meet a predetermined quality requirement, further comprising:

and setting the signal receiving quality threshold and the signal to noise ratio threshold by adopting a threshold setting algorithm based on the model, the performance and the experimental data of the terminal.

5. The method according to any of claims 1-4, wherein before obtaining the first signal strength and the channel quality of the current camped cell and obtaining the second signal strength of the neighboring cell of the camped cell, further comprising:

and determining the network cell corresponding to the maximum signal intensity value in the signal intensities of the network cells as the adjacent cell.

6. The method according to any of claims 1-4, wherein before obtaining the first signal strength and the channel quality of the current camped cell and obtaining the second signal strength of the neighboring cell of the camped cell, further comprising:

acquiring the moving speed and the moving path of the terminal;

acquiring at least one network cell corresponding to the moving speed and the moving path, and acquiring the signal strength of each network cell in the at least one network cell, wherein the signal strength of the at least one network cell is greater than the first signal strength;

7. An apparatus for cell switching, the apparatus comprising:

8. A cell switching method is applied to a network device, and the method comprises the following steps:

receiving a forecast event sent by a terminal;

9. A terminal comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the method of any of the preceding claims 1-6 when executing the computer program.

10. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the method of any one of the preceding claims 1 to 6.