Network switching method and device, electronic equipment and storage medium

Abstract

The invention relates to a network switching method and device, electronic equipment and a storage medium. The network switching method comprises: in response to a terminal determining that a condition of sending a first measurement event and a condition of sending a second measurement event are satisfied, determining a first duration and a second duration based on a signal strength change rate of a service cell connected to the terminal, the signal strength change rate, the first duration and the second duration having a corresponding relationship, the first duration represents that the terminal determines the interval duration between the first measurement event and the sending of the first measurement event, and the second duration represents that the terminal determines the interval duration between the second measurement event and the sending of the second measurement event; sending a first measurement event to the network device based on the first duration, and sending a second measurement event to the network device based on the second duration; and in response to receiving an instruction generated by the network equipment based on the first measurement event and / or the second measurement event, executing a network switching operation. According to the invention, flexible control of terminal network switching is realized.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a network switching method, apparatus, electronic device, and storage medium. Background Technology

[0002] Mobile communication technology is developing rapidly worldwide. Currently, the mainstream mobile communication networks are fourth-generation (4G LTE) and fifth-generation (5G NR), with a gradual evolution towards fifth-generation networks. Compared to 4G networks, 5G networks have higher frequencies and shorter wavelengths, offering advantages such as higher data transmission rates and lower latency. However, they also have drawbacks, including reduced signal coverage and greater susceptibility to physical obstacles.

[0003] In related technologies, when the cell signal of the serving cell to which the terminal is attached weakens and it cannot attach to a neighboring cell in the same system, the terminal will choose to perform inter-system cell handover. However, in related technologies, when the cell signal of the serving cell to which the terminal is attached weakens rapidly, the terminal may fail to complete the inter-system cell handover and instead perform a blind redirection operation, resulting in cell handover failure and further data disconnection, affecting the user's communication experience. Summary of the Invention

[0004] To overcome the problems existing in related technologies, this disclosure provides a network switching method, apparatus, electronic device, and storage medium.

[0005] According to a first aspect of the present disclosure, a network handover method is provided, comprising: in response to a terminal determining that conditions for sending a first measurement event and conditions for sending a second measurement event are met, determining a first duration and a second duration based on the signal strength change rate of the serving cell to which the terminal is connected, wherein the signal strength change rate, the first duration, and the second duration have a corresponding relationship, the first duration characterizes the interval between the terminal determining the first measurement event and sending the first measurement event, and the second duration characterizes the interval between the terminal determining the second measurement event and sending the second measurement event; sending the first measurement event to a network device based on the first duration, and sending the second measurement event to the network device based on the second duration; and performing a network handover operation in response to receiving an instruction generated by the network device based on the first measurement event and / or the second measurement event.

[0006] In one embodiment, the signal strength change rate characterizes the signal strength change within a time period T prior to the current time of the terminal. Determining the first and second durations based on the signal strength change rate of the serving cell to which the terminal is connected includes: periodically monitoring the signal strength change rate with a time period p; in response to the detection that the signal strength change rate is less than a change rate threshold in the nth period, determining the first and second durations based on the signal strength change rate monitored in the nth period; wherein the signal strength change rate within each period is determined as follows: within a time period T, sampling the signal strength corresponding to the serving cell to which the terminal is connected at a sampling interval of p seconds, obtaining T / p signal strengths; fitting the T / p signal strengths to a straight line, and determining the slope of the fitted straight line as the signal strength change rate within the time period T.

[0007] In one embodiment, determining the first duration and the second duration based on the rate of change of signal strength monitored within the nth period includes: obtaining a duration adjustment coefficient based on the rate of change of signal strength within the T duration and a preset correction coefficient, wherein the duration adjustment coefficient is less than the correction coefficient and the rate of change is positively correlated with the duration adjustment coefficient; using the product of the duration adjustment coefficient and a first preset duration as the first duration; using the product of the duration adjustment coefficient and a second preset duration as the delay duration; and using the sum of the second preset duration and the delay duration as the second duration.

[0008] In one embodiment, the method further includes: in response to detecting that the rate of change of signal strength is greater than or equal to a rate of change threshold in the nth period, determining the first duration as a first preset duration, and determining the second duration as a second preset duration.

[0009] In one embodiment, the instruction generated by the network device based on the first measurement event and / or the second measurement event includes a blind redirection instruction or an inter-system cell handover instruction. The step of performing a network handover operation in response to receiving the instruction generated by the network device based on the first measurement event and / or the second measurement event includes: in response to receiving the inter-system cell handover instruction generated by the network device, switching the serving cell connected to the terminal to a cell of a different network type; and in response to receiving the blind redirection instruction generated by the network device, switching the serving cell connected to the terminal to a cell of the same network type.

[0010] In one embodiment, the method further includes: responding to the fact that the type of radio access network used by the serving cell to which the terminal is connected has not changed, repeatedly performing the operation of determining a first duration and a second duration, sending the first measurement event to the network device based on the first duration after determining that the conditions for sending the first measurement event are met, and sending the second measurement event to the network device based on the second duration after determining that the conditions for sending the second measurement event are met.

[0011] According to a second aspect of the present disclosure, a measurement event transmission apparatus is provided, comprising: a processing unit configured to, in response to a terminal determining that conditions for transmitting a first measurement event and conditions for transmitting a second measurement event are met, determine a first duration and a second duration based on the signal strength change rate of the serving cell to which the terminal is connected, wherein the signal strength change rate, the first duration, and the second duration have a corresponding relationship, the first duration characterizing the interval between the terminal determining the first measurement event and transmitting the first measurement event, and the second duration characterizing the interval between the terminal determining the second measurement event and transmitting the second measurement event; a transmission unit configured to transmit the first measurement event to a network device based on the first duration, and transmit the second measurement event to the network device based on the second duration; the processing unit is further configured to, in response to receiving an instruction generated by the network device based on the first measurement event and / or the second measurement event, perform a network handover operation.

[0012] In one embodiment, the signal strength change rate characterizes the signal strength change within a time period T prior to the current time of the terminal. The processing unit determines a first time period and a second time period based on the signal strength change rate of the serving cell to which the terminal is connected, in the following manner: periodically monitoring the signal strength change rate with time period p; in response to the detection that the signal strength change rate is less than the change rate threshold in the nth period, determining the first time period and the second time period based on the signal strength change rate monitored in the nth period; wherein, the signal strength change rate in each period is determined as follows: within a time period T, sampling the signal strength corresponding to the serving cell to which the terminal is connected at a sampling interval of p seconds, obtaining T / p signal strengths; fitting the T / p signal strengths with a straight line, and determining the slope of the fitted straight line as the signal strength change rate within the time period T.

[0013] In one embodiment, the processing unit determines the first duration and the second duration based on the signal strength change rate monitored within the nth period as follows: A duration adjustment coefficient is obtained based on the signal strength change rate within the T duration and a preset correction coefficient, wherein the duration adjustment coefficient is less than the correction coefficient, and the change rate is positively correlated with the duration adjustment coefficient; the product of the duration adjustment coefficient and a first preset duration is used as the first duration; the product of the duration adjustment coefficient and a second preset duration is used as the delay duration; and the sum of the second preset duration and the delay duration is used as the second duration.

[0014] In one embodiment, the processing unit is further configured to: in response to detecting that the rate of change of signal strength is greater than or equal to a rate of change threshold in the nth cycle, determine that the first duration is a first preset duration, and determine that the second duration is a second preset duration.

[0015] In one embodiment, the instruction generated by the network device based on the first measurement event and / or the second measurement event includes a blind redirection instruction or an inter-system cell handover instruction. The processing unit, in response to receiving the instruction generated by the network device based on the first measurement event and / or the second measurement event, performs a network handover operation in the following manner: in response to receiving the inter-system cell handover instruction generated by the network device, it switches the serving cell connected to the terminal to a cell of a different network type; in response to receiving the blind redirection instruction generated by the network device, it switches the serving cell connected to the terminal to a cell of the same network type.

[0016] In one embodiment, the processing unit is further configured to: in response to the fact that the type of radio access network used by the serving cell to which the terminal is connected has not changed, repeatedly perform the operation of determining a first duration and a second duration, sending the first measurement event to the network device based on the first duration after determining that the conditions for sending the first measurement event are met, and sending the second measurement event to the network device based on the second duration after determining that the conditions for sending the second measurement event are met.

[0017] According to a third aspect of the present disclosure, a measurement event transmitting apparatus is provided, comprising:

[0018] A processor; a memory for storing processor-executable instructions; wherein the processor is configured to execute the network switching method described in the first aspect or any embodiment of the first aspect.

[0019] According to a fourth aspect of the present disclosure, a storage medium is provided, the storage medium storing instructions that, when executed by a processor of a terminal, enable the terminal to perform the method described in the first aspect or any one of the embodiments of the first aspect.

[0020] The technical solution provided by the embodiments of this disclosure can include the following beneficial effects: A first duration and a second duration are determined based on the signal strength change rate of the serving cell to which the terminal is connected. After determining that the terminal needs to send a first measurement event to the network device, the first measurement event is sent based on the first duration; and after determining that the terminal needs to send a second measurement event to the network device, the second measurement event is sent based on the second duration. This achieves flexible determination of the first duration for sending the first measurement event and the second duration for sending the second measurement event based on the terminal's signal strength change. Furthermore, by flexibly determining the first and second durations, the situation where the terminal sends the second measurement event without sending the first measurement event, causing the network device to receive the second measurement event but not the first measurement event, and further causing the terminal to perform cell handover based on blind redirection instructions, thus affecting the terminal's communication quality, is improved.

[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0023] Figure 1 This is a schematic diagram illustrating a scenario of blind redirection failure according to an exemplary embodiment.

[0024] Figure 2 This is a schematic diagram illustrating a scenario of blind redirection failure according to an exemplary embodiment.

[0025] Figure 3 This is a flowchart illustrating a network switching method according to an exemplary embodiment.

[0026] Figure 4 This is a flowchart illustrating a method for determining the rate of change of signal strength according to an exemplary embodiment.

[0027] Figure 5 This is a flowchart illustrating a method for determining a first duration and a second duration according to an exemplary embodiment.

[0028] Figure 6 This is a flowchart illustrating a network switching method according to an exemplary embodiment.

[0029] Figure 7 This is a schematic diagram illustrating a measurement event sending process according to an exemplary embodiment.

[0030] Figure 8 This is a block diagram illustrating a measurement event sending device according to an exemplary embodiment.

[0031] Figure 9 This is a block diagram illustrating an apparatus for measuring event transmission according to an exemplary embodiment.

[0032] Figure 10 This is a block diagram illustrating an apparatus for measuring event transmission according to an exemplary embodiment. Detailed Implementation

[0033] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure.

[0034] In the accompanying drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this disclosure. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure. The embodiments of this disclosure will be described in detail below with reference to the accompanying drawings.

[0035] The network handover method provided in this disclosure is applied in the field of communication technology. The network handover method provided in this disclosure is mainly used to determine the transmission time of a first measurement event for inter-system cell handover and a second measurement event for blind redirection. Mobile communication technology is developing rapidly worldwide, and mobile communication networks are constantly iterating and updating. Terminal devices can detect different types of mobile communication networks, but can only select a cell of one type of mobile communication network to camp on. For example, a terminal can detect fourth-generation (4G) and fifth-generation (5G) mobile communication networks. The fourth-generation mobile communication network is Long Term Evolution (LTE), also known as 4G LTE. The fifth-generation mobile communication network is New Radio (NR), also known as 5G NR. The terminal can also be called User Equipment (UE).

[0036] In this embodiment of the disclosure, the first measurement event characterizes a situation where the terminal triggers the transmission of a measurement event to the network device regarding the signal strength of a neighboring cell in another system when the signal strength of the serving cell to which the terminal is connected is less than a first preset signal value, and the signal strength of a neighboring cell in another system is greater than a second preset signal value. For example, the first measurement event can be a B2 measurement event. The condition for determining that a B2 measurement event needs to be transmitted can be that the signal quality of the serving cell to which the terminal is connected drops below a preset first threshold (Thresh1), and the signal quality of a neighboring cell in another system (such as an LTE network) is higher than a second threshold (Thresh2). The B2 measurement event is used to determine whether it is necessary to switch the UE from the current 5G NR network to a network of another radio access technology (RAT) (which could be 4G LTE).

[0037] In this embodiment, the second measurement event characterizes a terminal triggering a signal strength measurement event of a neighboring cell in a different system to be sent to the network device when the signal strength of the serving cell to which the terminal is connected is less than a third preset signal value. The second measurement event is sent by the terminal to the network device and includes the signal strength of the serving cell to which the terminal is connected. For example, the second measurement event can be a second-stage A2 measurement event, which includes a signal strength less than a preset third threshold value, wherein the third threshold value is less than a first threshold value. The network device can determine whether blind redirection based on a preset cell record table is required for cell handover between cells of the same radio access network type based on the reception of the B2 measurement event and the second-stage A2 measurement event.

[0038] In this embodiment, next-generation mobile communication technologies generally have higher frequencies and shorter wavelengths compared to previous generations, providing users with higher data transmission rates and reduced latency. However, next-generation mobile communication technologies also have limitations in penetration and coverage compared to previous generations, resulting in smaller coverage areas for cells of the next-generation technology compared to those of the previous generation. For example, the coverage area of ​​a 5G cell is smaller than that of a 4G cell. When a terminal is in a high-speed moving vehicle, passing through tunnels, bridges, or rural areas, rapid changes in location can cause the signal quality of the next-generation mobile communication technology cell where the phone was originally stationed to degrade rapidly. The resulting high bit error rate and high latency can seriously affect the phone's data services. Furthermore, due to limitations in core network and base station construction, next-generation mobile communication technologies may have many gaps in signal quality, affecting the continuity of terminal service cell replacement.

[0039] In related technologies, if the first measurement event is a B2 measurement event, the second measurement event is a second-stage A2 measurement event. When the UE rapidly moves away from the NR cell coverage area, the signal attenuation is a rapid and continuous process rather than a precipitous drop. Therefore, when the signal quality begins to deteriorate, the UE will send a third measurement event to the network when the serving cell signal drops to the first threshold. The third measurement event can be the first-stage A2 measurement event (also called the A2_1 measurement event), reporting to the network that the current serving cell signal quality has deteriorated. The network will also configure the UE with a B2 measurement event for measuring LTE cells. However, because the UE signal attenuates rapidly to the second threshold, the UE will directly report the second-stage A2 measurement event before completing the B2 measurement event for LTE neighboring cells. Measurement event (A2_2 measurement event); Since the network receives the A2_2 measurement event reported by the UE but does not receive the B2 measurement event, it will issue a blind redirection instruction to the UE according to the preset cell record table; When the UE is in the above special scenario, since the signal strength value of the cell indicated by the redirection is not obtained during blind redirection, the UE may not be able to search for the SA target cell indicated in the blind redirection, or the UE may not be able to successfully access the SA target cell due to the poor signal of the SA target cell. The above blind redirection situations in related technologies will all lead to blind redirection failure, and the UE will need to reconnect to the original cell, resulting in the terminal data disconnection and affecting the terminal's communication experience.

[0040] In one example, a schematic diagram of a scenario where blind redirection fails in related technologies is shown below. Figure 1 As shown, in Figure 1 In this scenario, the UE remains within the coverage area of ​​a 4G LTE cell. When the UE moves to an area between two NR cells without 5G NR cell coverage, it cannot attach to the 5G NR cell obtained through blind redirection, resulting in blind redirection failure. Furthermore, due to... Figure 1 It can be seen that when the UE moves to an area without 5G NR cell coverage, the 4G LTE cell signal coverage is good.

[0041] In another example, a schematic diagram of a scenario where blind redirection fails in related technologies is shown below. Figure 2 As shown, in Figure 2 In this scenario, when a UE moves between two NR cells, and the signal strength of both 5G NR cells indicated for blind redirection is less than the minimum signal strength required for cell camping, the UE cannot attach to the 5G NR cell obtained based on blind redirection, resulting in UE blind redirection failure. Furthermore, due to... Figure 2It is known that when the UE moves between two NR cells, the 4G LTE cell signal coverage is good. Blind redirection will fail if the UE moves rapidly across the target cell during a blind redirection, or if the UE has not fully reached the strong coverage area of ​​the target cell. The redirection process causes the UE to first disconnect its existing network data bearer and then reattach to the target cell before establishing a new network data bearer. Repeated redirection failures within a short period can lead to data interruptions, severely impacting normal terminal services and reducing the user experience.

[0042] Therefore, when rapid and continuous signal attenuation occurs, inter-system cell handover provides better communication performance for the terminal compared to cell handover via blind redirection.

[0043] In view of this, the present disclosure provides a network handover method. When the serving cell connected to the terminal is a 5G cell, after the first measurement event and the second measurement event are sent, the delay time for the terminal to send the first measurement event and the delay time for the second measurement event are determined based on the signal strength change rate of the serving cell of the terminal. This improves the problem that the terminal sends the second measurement event before sending the first measurement event, which causes the network device to perform blind redirection for cell handover and further leads to poor terminal communication performance after handover.

[0044] Figure 3 This is a flowchart illustrating a network handover method according to an exemplary embodiment, such as... Figure 3 As shown, it includes the following steps.

[0045] In step S11, in response to the terminal determining that the conditions for sending the first measurement event and the conditions for sending the second measurement event are met, the first duration and the second duration are determined based on the signal strength change rate of the serving cell to which the terminal is connected.

[0046] In this embodiment of the present disclosure, after the network device receives the second measurement event but does not receive the first measurement event, it issues a blind redirection instruction to the UE according to a preset cell record table. The blind redirection instruction includes information about the cell that the terminal needs to switch to. After receiving the blind redirection instruction, the terminal switches its serving cell to the cell specified in the blind redirection instruction without determining the signal strength of the cell specified in the instruction.

[0047] In this embodiment of the disclosure, before determining that the terminal meets the conditions for sending a first measurement event and the conditions for sending a second measurement event, the terminal will send a third measurement event (A2_1 measurement event) before determining that the conditions for sending the first measurement event are met. The signal strength that triggers the terminal to send the A2_1 measurement event is greater than the signal strength that triggers the terminal to send the second measurement event. This can be understood as the A2_1 measurement event representing to the network device that the signal strength of the terminal's serving cell begins to deteriorate, and the second measurement event representing to the network device that the signal strength of the terminal's serving cell becomes extremely poor. For example, when the terminal detects that the signal strength drops to -115dBm, it sends the A2_1 measurement event to the network device; when the terminal detects that the signal strength drops to -120dBm, it sends the second measurement event to the network device.

[0048] In this embodiment of the disclosure, the signal strength change rate represents the signal change of the terminal within a preset time period before the current moment. If the signal change of the terminal is a downward trend, the signal change rate is negative; if the signal change of the terminal is an upward trend, the signal change rate is positive.

[0049] In this embodiment of the present disclosure, the first duration characterizes the interval between the terminal determining the first measurement event and sending the first measurement event, and the second duration characterizes the interval between the terminal determining the second measurement event and sending the second measurement event.

[0050] In this embodiment of the disclosure, there is a corresponding relationship between the signal strength change rate, the first duration, and the second duration. By obtaining the signal strength change rate of the serving cell to which the terminal is connected, the first duration to be delayed in sending the first measurement event and the second duration to be delayed in sending the second measurement event are determined.

[0051] In step S12, a first measurement event is sent to the network device based on a first duration, and a second measurement event is sent to the network device based on a second duration.

[0052] In this embodiment of the disclosure, a first duration and a second duration are determined based on the signal strength change rate of the serving cell to which the terminal is connected. After determining that the terminal needs to send a first measurement event to the network device, the first measurement event can be sent with a first duration delay, and after determining that the terminal needs to send a second measurement event to the network device, the second measurement event can be sent with a second duration delay. This allows for flexible determination of the first duration for delaying the first measurement event and the second duration for delaying the second measurement event based on the terminal's signal strength changes. For example, if the time at which the terminal needs to send the measurement event is determined to be q1 and the duration is q2, then the time at which the terminal sends the measurement event is q1 + q2.

[0053] In step S13, in response to receiving an instruction generated by the network device based on the first measurement event and / or the second measurement event, a network switching operation is performed.

[0054] In this embodiment of the disclosure, the instructions generated by the network device based on the first measurement event and / or the second measurement event include a blind redirection instruction or an inter-system cell handover instruction. In response to receiving the instructions generated by the network device based on the first measurement event and / or the second measurement event, a network handover operation is performed, including: in response to receiving the inter-system cell handover instruction generated by the network device, switching the serving cell connected to the terminal to a cell of a different network type; and in response to receiving the blind redirection instruction generated by the network device, switching the serving cell connected to the terminal to a cell of the same network type. Wherein, if the network device receives the first measurement event before receiving the second measurement event, it generates the inter-system cell handover instruction and sends it to the terminal. If the network device receives the first measurement event before receiving the second measurement event, it generates the blind redirection instruction and sends it to the terminal.

[0055] By flexibly determining the first and second durations through the signal strength change rate, this addresses the issue of the terminal sending a second measurement event before sending the first measurement event, which causes the network device to receive the second measurement event but not the first measurement event, and further leads to the terminal performing cell handover based on blind redirection instructions, thus affecting the terminal's communication quality.

[0056] In this embodiment of the disclosure, when it is determined that the terminal needs to send a first measurement event and a second measurement event to the network device, a first preset duration is set by default for delaying the transmission of the first measurement event, and a second preset duration is set by default for delaying the transmission of the second measurement event. In response to detecting that the signal strength change rate is greater than or equal to a change rate threshold in the nth cycle, the first preset duration is determined, and the second preset duration is determined. That is, the first measurement event is sent after the first preset duration following the determination that the conditions for sending the first measurement event are met, and the second measurement event is sent after the conditions for sending the second measurement event are met.

[0057] In this embodiment of the disclosure, a sliding window can be used to periodically monitor the rate of change of signal strength with a time period p. The rate of change of signal strength represents the change in signal strength within a time period T before the current time. In response to the detection that the rate of change of signal strength is less than a threshold in the nth period, a first duration and a second duration are determined based on the rate of change of signal strength monitored in the nth period, thereby achieving real-time detection of the rate of change within a time period T before the current time. For example, if the current time is M... n Then it is determined that in M1, M2...M n The rate of change of signal strength within seconds is K1; if the current time becomes M... n+1Then it is determined that in M2, M3...M n+1 The rate of change of signal strength within seconds, K2. If K1 is detected to be greater than or equal to the rate of change threshold K... th If K2 is detected to be less than K, then real-time detection continues; th Then K2 is used to determine the first and second durations.

[0058] Figure 4 This is a flowchart illustrating a method for determining the rate of change of signal strength according to an exemplary embodiment, such as... Figure 4 As shown, it includes the following steps.

[0059] In step S21, within a time period of T, the signal strength corresponding to the serving cell connected to the terminal is sampled at a sampling interval of p seconds to obtain T / p signal strengths.

[0060] In this embodiment of the disclosure, T is a positive real number greater than or equal to 2p, and the unit is seconds. If T is not an integer multiple of p, that is, T / p is not an integer, then T / p can be rounded down to the nearest integer as the number of signal strengths obtained from sampling.

[0061] It should be understood that the embodiments of this disclosure use a sliding window method for sampling, which means that data obtained from the previous sampling can be used as part of the data for the current sampling. For example, if the current time is M... n Then it is determined that in M1, M2...M n The rate of change of signal strength within seconds is K1; if the current time becomes M... n+1 Then it is determined that in M2, M3...M n+1 The rate of change of signal strength K2 within seconds can be determined using M2, M3...M when K1 is determined. n and collect M n+1 The signal strength at time K2 is calculated.

[0062] In step S22, T / p signal intensities are fitted with a straight line, and the slope of the fitted line is determined as the rate of change of signal intensity within time T.

[0063] In this embodiment of the disclosure, the obtained T / p signal intensities are fitted with a straight line to obtain a linear correspondence between time and signal intensity within a duration of T. The slope of this linear correspondence can be used as the rate of change of signal intensity within a duration of T, representing the rate of increase or decrease in signal intensity within that duration.

[0064] In this embodiment of the disclosure, by fitting multiple signal intensities sampled within a time period T, a straight line representing the correspondence between time and signal intensity is obtained, and the slope of the straight line is used as the rate of change of signal intensity to measure the speed of change of signal intensity, thereby quantifying the change of signal intensity within a time period T.

[0065] In this embodiment of the disclosure, after determining the rate of change of signal strength needed to determine the first duration and the second duration, a duration adjustment coefficient is determined based on the rate of change of signal strength, the first duration is obtained based on the duration adjustment coefficient and the first preset duration, and the second duration is obtained based on the duration adjustment coefficient and the second preset duration.

[0066] Figure 5 This is a flowchart illustrating a method for determining a first duration and a second duration according to an exemplary embodiment, such as... Figure 5 As shown, it includes the following steps.

[0067] In step S31, the duration adjustment coefficient is obtained based on the signal strength change rate within duration T and the preset correction coefficient.

[0068] In this embodiment, the duration adjustment coefficient is less than the correction coefficient, and the rate of change is positively correlated with the duration adjustment coefficient. When the rate of change is negative, the duration adjustment coefficient is a real number greater than 0 and less than 1. The correction coefficient can be a preset real number greater than 0 and less than 1, or it can be determined based on a pre-trained model, taking into account the terminal's signal strength and the signal strength of neighboring cells.

[0069] In this embodiment of the disclosure, a preset function can be used to obtain the duration adjustment coefficient based on the signal strength change rate and a correction coefficient. For example, the duration adjustment coefficient can be determined using the following formula based on the signal strength change rate and a correction coefficient:

[0070]

[0071] Where K is the signal strength change rate, A is the correction coefficient, and C is the duration adjustment coefficient.

[0072] In step S32, the product of the duration adjustment coefficient and the first preset duration is taken as the first duration; the product of the duration adjustment coefficient and the second preset duration is taken as the delay duration; and the sum of the second preset duration and the delay duration is taken as the second duration.

[0073] In this embodiment of the disclosure, if it is detected that the rate of change of signal strength is less than the rate of change threshold, that is, it is determined that the signal strength is rapidly decreasing, then it is necessary to shorten the first duration used to delay the transmission of the first measurement event, so that the terminal can transmit the first measurement event as soon as possible.

[0074] In an exemplary embodiment, the first duration can be determined using the following formula based on the product of the duration adjustment coefficient and the first preset duration: TB' = C * TB, where TB is the first preset duration, C is the duration adjustment coefficient, and TB' is the first duration.

[0075] In this embodiment of the disclosure, if a value less than the rate of change threshold is detected, in addition to shortening the first duration for delaying the transmission of the first measurement event, the second duration for delaying the transmission of the second measurement event can also be extended to increase the probability that the terminal will transmit the second measurement event after transmitting the first measurement event.

[0076] In this embodiment of the disclosure, in order to avoid communication problems in the terminal due to the determined second duration being too long, a maximum value can be set for the second duration, for example, the second duration can be set to be less than or equal to twice the second preset duration.

[0077] In one exemplary embodiment, the second duration can be determined using the following formula based on the product of the duration adjustment coefficient and the second preset duration: TA' = TA + C * TA, where TA is the second preset duration, C is the duration adjustment coefficient, and TA' is the second duration.

[0078] In this embodiment, a duration adjustment coefficient is determined based on the signal strength change rate and a correction coefficient. The first preset duration is shortened based on the duration adjustment coefficient to obtain a first duration. The second preset duration is extended based on the duration adjustment coefficient to obtain a second duration. This shortens the delay required to send the first measurement event and extends the duration required to send the second measurement event. This improves the terminal's ability to send the first measurement event before sending the second measurement event, enabling the network device to instruct the terminal to perform inter-system cell handover and improve the signal strength and communication stability after cell handover.

[0079] In this embodiment of the disclosure, after determining the first duration and the second duration using the signal strength change rate, the type of radio access network used by the serving cell to which the terminal belongs can be detected. If a change occurs, it is determined that the terminal has completed inter-system cell handover, and the determination of the signal strength change rate is no longer performed, and the operation of determining the first duration and the second duration is continued. If no change occurs, it is determined that the terminal has not completed inter-system cell handover, and the signal strength change rate is detected again, and the first duration of the delay required to send the first measurement event and the second duration of the delay required to send the second measurement event are determined.

[0080] Figure 6 This is a flowchart illustrating a network handover method according to an exemplary embodiment, such as... Figure 6 As shown, it includes the following steps.

[0081] Figure 6 Step S41 and the steps in Figure 3 Step S12 is the same as in the previous one, and will not be repeated here. Please refer to the relevant description in the above embodiments. The following only describes the differences.

[0082] In step S42, in response to the fact that the type of radio access network used by the serving cell to which the terminal is connected has not changed, the operation of determining the first duration and the second duration, and sending the first measurement event to the network device based on the first duration and the second measurement event to the network device based on the second duration is repeated.

[0083] If, after the terminal uses a first duration and a second duration determined based on the signal strength change rate to delay the transmission of the first and second measurement events, and the type of radio access network used by the serving cell remains unchanged, indicating that the terminal has not performed cell handover or has performed cell handover based on a blind redirection instruction, then the signal strength change rate is continuously detected. When it is determined again that the conditions for sending the first measurement event and the conditions for sending the second measurement event are met, the determination of the first and second durations based on the signal strength change rate is continued, and the first measurement event is sent to the network device after a delay of the first duration, and the second measurement event is sent to the network device after a delay of the second duration.

[0084] In this embodiment of the disclosure, in response to a change in the type of radio access network used by the serving cell to which the terminal is connected, the cell handover operation is determined to be completed, indicating that the terminal has completed the inter-system cell handover operation and switched from the 5G NR cell to the 4G LTE cell.

[0085] In an exemplary embodiment, the network switching method provided in this disclosure is as follows: Figure 7 As shown, Figure 7 This is a schematic diagram illustrating a measurement event transmission process according to an exemplary embodiment. Figure 7 In this context, a 5G cell specifically refers to a 5G Standalone (SA) cell. The signal strength of the terminal within the time frame T before the current moment is stored in a queue List. The sampling interval is p seconds, and the queue List can hold T / p signal strength data points. A sampling queue List capable of holding T / p data points is created. It is determined whether the current serving cell is a 5G SA cell. If so, the serving cell signal value is sampled every p seconds, and the latest sampled data is stored at the end of the queue List, while older data at the head of the queue List is deleted to ensure that the data stored in the queue List represents the signal strength data within the time frame T before the current moment. A linear fit is performed on the data in the List with time from oldest to newest as the x-axis and signal strength value as the y-axis to obtain the slope K of the signal strength value change (corresponding to the rate of change of signal strength). The real-time slope K is checked to see if it is less than a threshold slope K. th(Corresponding to the rate of change threshold), if not, then based on the latest sampled data; if yes, then calculate the proportional coefficient C (corresponding to the duration adjustment coefficient) according to the slope K and correction coefficient A, calculate the corrected measurement time TA (corresponding to the second duration) of the difference signal A2 event (corresponding to the second measurement event), the delay time of the difference signal A2 event is lengthened, suppressing the terminal from reporting the difference signal A2 event. Calculate the corrected measurement event TB (corresponding to the first duration) of the B2 event, the delay time of the first measurement event is shortened, promoting the mobile phone to report the B2 event. Detect whether the serving cell's attribute is a 5G SA cell; if yes, end the determination of the first and second durations; otherwise, continue sampling signal values ​​and re-determine the first and second durations. When the slope K is less than the threshold slope K_th, the steeper the slope of the real-time signal data, the smaller the proportional coefficient C, the longer the measurement duration TA of the difference signal A2 event, and the shorter the measurement duration TB of the B2 event. That is, it becomes more difficult to satisfy the transmission of the difference signal A2 event and easier to satisfy the transmission of the B2 event. This achieves the purpose of promoting the reporting of the B2 event and suppressing the reporting of the difference signal A2 event, so that the mobile phone can preferentially access the LTE cell in special scenarios, thereby avoiding the data interruption problem caused by multiple invalid SA redirections in the network due to the difference signal A2 event.

[0086] In this embodiment, after the terminal determines that the conditions for sending a first measurement event and the conditions for sending a second measurement event are met, the first and second durations corresponding to the signal strength change rate are determined based on the signal strength change rate of the terminal's serving cell and the correspondence between the signal strength change rate, the first duration, and the second duration. After determining to send the first measurement event, the first measurement event is sent to the network device with a delay of the first duration; after determining to send the second measurement event, the second measurement event is sent to the network device with a delay of the second duration. This allows for flexible control over the delay durations for sending the first and second measurement events, improving the situation where the terminal sends the second measurement event before sending the first measurement event, leading to cell handover based on blind redirection instructions and further resulting in poor communication performance in the cell after handover. This enhances the continuity of terminal data services and improves the terminal's communication experience.

[0087] Based on the same concept, embodiments of this disclosure also provide a measurement event sending device.

[0088] It is understood that the measurement event transmitting device provided in this disclosure includes hardware structures and / or software modules corresponding to each function in order to achieve the above-mentioned functions. In conjunction with the units and algorithm steps of the various examples disclosed in this disclosure, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of this disclosure.

[0089] Figure 8 This is a block diagram illustrating a measurement event transmitting device 100 according to an exemplary embodiment. (Refer to...) Figure 8 The device includes a processing unit 101 and a transmitting unit 102.

[0090] The processing unit 101 is configured to, in response to the terminal determining that the conditions for sending a first measurement event and the conditions for sending a second measurement event are met, determine a first duration and a second duration based on the signal strength change rate of the serving cell to which the terminal is connected, wherein the signal strength change rate, the first duration, and the second duration are related, the first duration represents the interval between the terminal determining the first measurement event and sending the first measurement event, and the second duration represents the interval between the terminal determining the second measurement event and sending the second measurement event.

[0091] The sending unit 102 is configured to send a first measurement event to the network device based on a first duration, and to send a second measurement event to the network device based on a second duration; the processing unit 101 is further configured to perform a network handover operation in response to receiving an instruction generated by the network device based on the first measurement event and / or the second measurement event.

[0092] In one embodiment, the signal strength change rate characterizes the signal strength change within a time period T prior to the current time of the terminal. The processing unit 101 determines the first time period and the second time period based on the signal strength change rate of the serving cell to which the terminal is connected in the following manner: periodically monitoring the signal strength change rate with time p as the period; in response to the detection that the signal strength change rate is less than the change rate threshold in the nth period, determining the first time period and the second time period based on the signal strength change rate monitored in the nth period; wherein, the signal strength change rate in each period is determined in the following manner: within the time period T, sampling the signal strength corresponding to the serving cell to which the terminal is connected at a sampling interval of p seconds to obtain T / p signal strengths; fitting the T / p signal strengths with a straight line, and determining the slope of the fitted straight line as the signal strength change rate within the time period T.

[0093] In one embodiment, the processing unit 101 determines the first duration and the second duration based on the rate of change of signal strength monitored within the nth period as follows: based on the rate of change of signal strength within a duration of T and a preset correction coefficient, a duration adjustment coefficient is obtained, wherein the duration adjustment coefficient is less than the correction coefficient and the rate of change is positively correlated with the duration adjustment coefficient; the product between the duration adjustment coefficient and the first preset duration is taken as the first duration; the product between the duration adjustment coefficient and the second preset duration is taken as the delay duration, and the sum of the second preset duration and the delay duration is taken as the second duration.

[0094] In one embodiment, the processing unit 101 is further configured to: in response to detecting that the rate of change of signal strength is greater than or equal to the rate of change threshold in the nth cycle, determine a first duration as a first preset duration, and determine a second duration as a second preset duration.

[0095] In one embodiment, the instructions generated by the network device based on a first measurement event and / or a second measurement event include a blind redirection instruction or an inter-system cell handover instruction. The processing unit 101 responds to receiving the instructions generated by the network device based on the first measurement event and / or the second measurement event by performing a network handover operation in the following manner: responding to receiving the inter-system cell handover instruction generated by the network device, switching the serving cell connected to the terminal to a cell of a different network type; responding to receiving the blind redirection instruction generated by the network device, switching the serving cell connected to the terminal to a cell of the same network type.

[0096] In one embodiment, the processing unit 101 is further configured to: in response to the fact that the type of radio access network used by the serving cell to which the terminal is connected has not changed, repeatedly perform the operation of determining a first duration and a second duration, sending a first measurement event to the network device based on the first duration after determining that the conditions for sending a first measurement event are met, and sending a second measurement event to the network device based on the second duration after determining that the conditions for sending a second measurement event are met.

[0097] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0098] Figure 9 This is a block diagram illustrating an apparatus 200 for measuring event transmission according to an exemplary embodiment. For example, apparatus 200 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0099] Reference Figure 9The device 200 may include one or more of the following components: processing component 202, memory 204, power component 206, multimedia component 208, audio component 210, input / output (I / O) interface 212, sensor component 214, and communication component 216.

[0100] Processing component 202 typically controls the overall operation of device 200, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 202 may include one or more processors 220 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 202 may include one or more modules to facilitate interaction between processing component 202 and other components. For example, processing component 202 may include a multimedia module to facilitate interaction between multimedia component 208 and processing component 202.

[0101] Memory 204 is configured to store various types of data to support the operation of device 200. Examples of such data include instructions for any application or method operating on device 200, contact data, phonebook data, messages, pictures, videos, etc. Memory 204 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0102] The power supply component 206 provides power to the various components of the device 200. The power supply component 206 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the device 200.

[0103] Multimedia component 208 includes a screen that provides an output interface between the device 200 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 208 includes a front-facing camera and / or a rear-facing camera. When the device 200 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0104] Audio component 210 is configured to output and / or input audio signals. For example, audio component 210 includes a microphone (MIC) configured to receive external audio signals when device 200 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 204 or transmitted via communication component 216. In some embodiments, audio component 210 also includes a speaker for outputting audio signals.

[0105] I / O interface 212 provides an interface between processing component 202 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0106] Sensor assembly 214 includes one or more sensors for providing status assessments of various aspects of device 200. For example, sensor assembly 214 may detect the on / off state of device 200, the relative positioning of components such as the display and keypad of device 200, changes in the position of device 200 or a component of device 200, the presence or absence of user contact with device 200, the orientation or acceleration / deceleration of device 200, and temperature changes of device 200. Sensor assembly 214 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 214 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 214 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0107] Communication component 216 is configured to facilitate wired or wireless communication between device 200 and other devices. Device 200 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 216 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 216 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0108] In an exemplary embodiment, the apparatus 200 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0109] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 204 including instructions, which can be executed by a processor 220 of the device 200 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0110] Figure 10 This is a block diagram illustrating an apparatus 300 for measuring event transmission according to an exemplary embodiment. For example, apparatus 300 may be provided as a server. (Refer to...) Figure 10 The device 300 includes a processing component 322, which further includes one or more processors, and memory resources represented by memory 332 for storing instructions, such as application programs, that can be executed by the processing component 322. The application programs stored in memory 332 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 322 is configured to execute instructions to perform the network switching method described above.

[0111] Device 300 may also include a power supply component 326 configured to perform power management of device 300, a wired or wireless network interface 350 configured to connect device 300 to a network, and an input / output (I / O) interface 358. Device 300 may operate on an operating system stored in memory 332, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0112] It is understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0113] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0114] It can be further understood that, unless otherwise specified, "connection" includes both direct connections where no other components exist between the two parties and indirect connections where other components exist between them.

[0115] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0116] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein.

[0117] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A network switching method, applied to a terminal, characterized in that, include: In response to the terminal determining that the conditions for sending a first measurement event and the conditions for sending a second measurement event are met, a first duration and a second duration are determined based on the signal strength change rate of the serving cell to which the terminal is connected. The signal strength change rate, the first duration, and the second duration are related. The first duration represents the interval between the terminal determining the first measurement event and sending the first measurement event, and the second duration represents the interval between the terminal determining the second measurement event and sending the second measurement event. Based on the first duration, the first measurement event is sent to the network device, and based on the second duration, the second measurement event is sent to the network device. In response to receiving an instruction generated by the network device based on the first measurement event and / or the second measurement event, a network switching operation is performed.

2. The method according to claim 1, characterized in that, The signal strength change rate characterizes the signal strength change of the terminal within a time period T prior to the current time. Determining the first and second time periods based on the signal strength change rate of the serving cell to which the terminal is connected includes: The rate of change of signal intensity is periodically monitored with time period p. In response to the detection that the rate of change of signal strength is less than the rate of change threshold in the nth period, the first duration and the second duration are determined based on the rate of change of signal strength detected in the nth period; The rate of change of signal strength within each period is determined as follows: Within a time duration of T, at sampling intervals of p seconds, the signal strength corresponding to the serving cell connected to the terminal is sampled to obtain T / p signal strengths; The T / p signal intensities are fitted with a straight line, and the slope of the fitted line is determined as the rate of change of signal intensity within the T time period.

3. The method according to claim 2, characterized in that, Determining the first duration and the second duration based on the rate of change of signal intensity monitored within the nth period includes: Based on the rate of change of signal strength within the time period T and a preset correction coefficient, a time period adjustment coefficient is obtained. The time period adjustment coefficient is less than the correction coefficient, and the rate of change is positively correlated with the time period adjustment coefficient. The product of the duration adjustment coefficient and the first preset duration is taken as the first duration; The product of the duration adjustment coefficient and the second preset duration is taken as the delay duration, and the sum of the second preset duration and the delay duration is taken as the second duration.

4. The method according to claim 2, characterized in that, The method further includes: In response to the detection that the rate of change of signal strength is greater than or equal to the rate of change threshold in the nth cycle, the first duration is determined to be the first preset duration, and the second duration is determined to be the second preset duration.

5. The method according to claim 1, characterized in that, The instruction generated by the network device based on the first measurement event and / or the second measurement event includes a blind redirection instruction or an inter-system cell handover instruction. The step of performing a network handover operation in response to receiving the instruction generated by the network device based on the first measurement event and / or the second measurement event includes: In response to receiving a cross-system cell handover command generated by the network device, the serving cell connected to the terminal is switched to a cell of a different network type; In response to receiving a blind redirection command generated by the network device, the serving cell connected to the terminal is switched to a cell of the same network type.

6. The method according to claim 5, characterized in that, The method further includes: In response to the fact that the type of wireless access network used by the serving cell to which the terminal is connected has not changed, the operation of determining a first duration and a second duration is repeated. After determining that the conditions for sending a first measurement event are met, the first measurement event is sent to the network device based on the first duration. After determining that the conditions for sending a second measurement event are met, the second measurement event is sent to the network device based on the second duration.

7. A network switching device, characterized in that, include: The processing unit is configured to, in response to a terminal determining that the conditions for sending a first measurement event and the conditions for sending a second measurement event are met, determine a first duration and a second duration based on the signal strength change rate of the serving cell to which the terminal is connected, wherein the signal strength change rate, the first duration, and the second duration are related, the first duration represents the interval between the terminal determining the first measurement event and sending the first measurement event, and the second duration represents the interval between the terminal determining the second measurement event and sending the second measurement event; The sending unit is configured to send the first measurement event to the network device based on the first duration, and to send the second measurement event to the network device based on the second duration; The processing unit is further configured to perform a network switching operation in response to receiving an instruction generated by the network device based on the first measurement event and / or the second measurement event.

8. The apparatus according to claim 7, characterized in that, The signal strength change rate characterizes the signal strength change of the terminal within a time period T prior to the current time. The processing unit determines the first time period and the second time period based on the signal strength change rate of the serving cell to which the terminal is connected, in the following manner: The rate of change of signal intensity is periodically monitored with time period p. In response to the detection that the rate of change of signal strength is less than the rate of change threshold in the nth period, the first duration and the second duration are determined based on the rate of change of signal strength detected in the nth period; The rate of change of signal strength within each period is determined as follows: Within a time duration of T, at sampling intervals of p seconds, the signal strength corresponding to the serving cell connected to the terminal is sampled to obtain T / p signal strengths; The T / p signal intensities are fitted with a straight line, and the slope of the fitted line is determined as the rate of change of signal intensity within the T time period.

9. The apparatus according to claim 8, characterized in that, The processing unit determines the first duration and the second duration based on the rate of change of signal intensity monitored within the nth period in the following manner: Based on the rate of change of signal strength within the time period T and a preset correction coefficient, a time period adjustment coefficient is obtained. The time period adjustment coefficient is less than the correction coefficient, and the rate of change is positively correlated with the time period adjustment coefficient. The product of the duration adjustment coefficient and the first preset duration is taken as the first duration; The product of the duration adjustment coefficient and the second preset duration is taken as the delay duration, and the sum of the second preset duration and the delay duration is taken as the second duration.

10. The apparatus according to claim 8, characterized in that, The processing unit is also used for: In response to the detection that the rate of change of signal strength is greater than or equal to the rate of change threshold in the nth cycle, the first duration is determined to be the first preset duration, and the second duration is determined to be the second preset duration.

11. The apparatus according to claim 7, characterized in that, The instruction generated by the network device based on the first measurement event and / or the second measurement event includes a blind redirection instruction or an inter-system cell handover instruction. The processing unit responds to receiving the instruction generated by the network device based on the first measurement event and / or the second measurement event by performing a network handover operation in the following manner: In response to receiving a cross-system cell handover command generated by the network device, the serving cell connected to the terminal is switched to a cell of a different network type; In response to receiving a blind redirection command generated by the network device, the serving cell connected to the terminal is switched to a cell of the same network type.

12. The apparatus according to claim 11, characterized in that, The processing unit is also used for: In response to the fact that the type of wireless access network used by the serving cell to which the terminal is connected has not changed, the operation of determining a first duration and a second duration is repeated. After determining that the conditions for sending a first measurement event are met, the first measurement event is sent to the network device based on the first duration. After determining that the conditions for sending a second measurement event are met, the second measurement event is sent to the network device based on the second duration.

13. An electronic device, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured to execute the method according to any one of claims 1 to 6.

14. A storage medium, characterized in that, The storage medium stores instructions that, when executed by the terminal's processor, enable the terminal to perform the method described in any one of claims 1 to 6.

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