CN112689312A - Cell measurement method, terminal device and storage medium - Google Patents
Cell measurement method, terminal device and storage medium Download PDFInfo
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- CN112689312A CN112689312A CN202011515851.1A CN202011515851A CN112689312A CN 112689312 A CN112689312 A CN 112689312A CN 202011515851 A CN202011515851 A CN 202011515851A CN 112689312 A CN112689312 A CN 112689312A
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Abstract
The application discloses a cell measurement method, comprising: under the condition that a serving cell does not meet a measurement condition of an adjacent cell, if the signal quality of the serving cell meets a first condition, starting measurement of the adjacent cell by terminal equipment; the terminal equipment determines a target cell to be switched based on the measurement result of the measurement of the adjacent cell; the application also discloses a terminal device and a storage medium; by the cell measurement method, the terminal device and the storage medium, stability of a data transmission process can be improved.
Description
Technical Field
The present application relates to the field of wireless communications technologies, and in particular, to a cell measurement method, a terminal device, and a storage medium.
Background
In the related art, the threshold of the signal quality in the wireless cell switching condition is small, the terminal device can report the signal measurement result after receiving the measurement reconfiguration message issued by the network device, but before the network device issues the measurement reconfiguration message, the situation of data transmission quality degradation also occurs, so how to improve the stability of the data transmission process is a technical problem to be solved.
Disclosure of Invention
The embodiment of the application provides a cell measurement method, a terminal device and a storage medium, which can improve the stability of a data transmission process.
The technical scheme of the embodiment of the application is realized as follows:
in a first aspect, an embodiment of the present application provides a cell measurement method, including: under the condition that a serving cell does not meet a measurement condition of an adjacent cell, if the signal quality of the serving cell meets a first condition, starting measurement of the adjacent cell by terminal equipment; and the terminal equipment determines a target cell to be switched based on the measurement result of the measurement of the adjacent cell.
In a second aspect, an embodiment of the present application provides a terminal device, including: the device comprises a starting unit, a judging unit and a judging unit, wherein the starting unit is used for starting the measurement of the adjacent cell if the signal quality of the serving cell meets a first condition under the condition that the serving cell does not meet the measurement condition of the adjacent cell; and the determining unit is used for determining the target cell to be switched by the terminal equipment based on the measuring result of the adjacent cell.
In a third aspect, an embodiment of the present application provides a storage medium, which stores an executable program, and when the executable program is executed by a processor, the cell measurement method performed by the terminal device is implemented.
In a fourth aspect, an embodiment of the present application provides a cell measurement apparatus, where the cell measurement apparatus causes a processor to execute a cell measurement confirmation method executed by the terminal device.
According to the cell measurement method, the terminal device and the storage medium provided by the embodiment of the application, under the condition that a serving cell does not meet a neighbor cell measurement condition, if the signal quality of the serving cell meets a first condition, the terminal device starts neighbor cell measurement; and the terminal equipment determines a target cell to be switched based on the measurement result of the measurement of the adjacent cell. Therefore, the stability of the data transmission process can be improved, and the use experience of a user is improved.
Drawings
Fig. 1 is a schematic view of an alternative flow chart of a cell measurement method according to an embodiment of the present application;
fig. 2 is a schematic view of another alternative flow chart of a cell measurement method according to an embodiment of the present application;
fig. 3 is a schematic flowchart of another alternative cell measurement method according to an embodiment of the present application;
fig. 4 is a schematic diagram of an alternative structure of a terminal device according to an embodiment of the present application;
fig. 5 is a schematic diagram of a hardware composition structure of a terminal device according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the current fifth Generation mobile communication (5th Generation Wireless Systems) system, the threshold for switching the Wireless connection cell of the third Generation Partnership (3 GPP) protocol specification is small, and the terminal can only passively receive the measurement reconfiguration message sent by the network side to report the signal measurement result, which results in the network quality deterioration of the user during the moving process, and the user is not switched to the network taught by the signal strength in time, and further the data transmission quality deteriorates, and the phenomena such as network disconnection and call drop occur.
Based on the problems existing in the current mobile communication process, the cell measurement method is provided, and the technical problems and the defects which cannot be solved in the prior technical scheme can be solved.
Fig. 1 shows an alternative flowchart of a cell measurement method provided in an embodiment of the present application, which will be described according to various steps.
Step S101, under the condition that a service cell does not satisfy a neighbor cell measurement condition, if the signal quality of the service cell satisfies a first condition, a terminal device starts neighbor cell measurement.
In some embodiments, the serving cell not satisfying the neighbor cell measurement condition comprises: the Reference Signal Received Power (RSRP) of the serving cell is greater than or equal to the RSRP value in the initiating neighbor cell measurement condition, and/or the Reference Signal Receiving Quality (RSRQ) of the serving cell is greater than or equal to the RSRQ value in the initiating neighbor cell measurement condition.
In some embodiments, the signal quality of the serving cell comprises at least one of: reference signal strength or reference signal quality.
In some embodiments, the serving cell's signal quality satisfying the first condition comprises: the descending amplitude of the RSRP value of the serving cell in the first time length is larger than or equal to a first threshold value, and the current RSRP value of the serving cell is larger than the RSRP value in the measuring condition of the adjacent cell, and/or the descending amplitude of the RSRQ value of the serving cell in the first time length is larger than or equal to a second threshold value, and the current RSRQ value is larger than the RSRQ value in the measuring condition of the adjacent cell.
And step S102, the terminal equipment determines a target cell to be switched based on the measurement result of the adjacent cell measurement.
In some embodiments, the terminal device determines, based on the measurement result of the measurement of the neighboring cell, that a neighboring cell with the best signal quality in the measurement result is a target cell to be switched; or, determining at least one neighboring cell with the signal quality higher than a third threshold based on the measurement result, and determining a neighboring cell with the signal quality meeting a second condition in the at least one neighboring cell as a target cell to be switched.
Therefore, with the cell measurement method provided by the embodiment of the present application, under the condition that the serving cell does not satisfy the neighbor cell measurement, if the signal quality of the serving cell satisfies the first condition, the terminal device starts the neighbor cell measurement. And the terminal equipment determines a target cell to be switched based on the measurement result of the measurement of the adjacent cell. And under the condition that the serving cell does not start the measurement of the adjacent cell but the signal quality meets the first condition, the terminal equipment can start the measurement of the adjacent cell and determine the target cell to be switched based on the measurement result. The method can avoid switching from the adjacent cell when the signal quality of the serving cell is too poor, and can ensure the data transmission quality and the stability of the data transmission process.
Fig. 2 shows an alternative flowchart of the cell measurement method provided in the embodiment of the present application, which will be described according to various steps.
Step S201, if the serving cell does not satisfy the neighbor cell measurement condition, and the signal quality of the serving cell satisfies the first condition, the terminal device starts neighbor cell measurement.
In some embodiments, the serving cell not satisfying the neighbor cell measurement condition comprises: in some embodiments, the serving cell not satisfying the neighbor cell measurement condition comprises: the RSRP of the serving cell is greater than or equal to the RSRP value in the condition for starting the measurement of the adjacent cell, and/or the RSRQ of the serving cell is greater than or equal to the RSRQ value in the condition for starting the measurement of the adjacent cell.
In some embodiments, the signal quality of the serving cell comprises at least one of: reference signal strength and reference signal quality.
In specific implementation, the condition that the serving cell does not satisfy the measurement condition of the neighboring cell may include: the current signal quality of the serving cell does not meet the measurement condition of the neighboring cell; the signal quality of the serving cell satisfying the first condition may include: the historical signal quality of the serving cell satisfies a first condition.
In some embodiments, the serving cell's signal quality satisfying the first condition may include at least one of the following three scenarios:
scenario 1
The descending amplitude of the RSRP value of the serving cell in the first time length is larger than or equal to a first threshold value, and the current RSRP value of the serving cell is larger than the RSRP value in the measuring condition of the adjacent cell, and/or the descending amplitude of the RSRQ value of the serving cell in the first time length is larger than or equal to a second threshold value, and the current RSRQ value is larger than the RSRQ value in the measuring condition of the adjacent cell.
For example, the amplitude of the decrease of the RSRP value of the serving cell in the first time period is greater than or equal to the first threshold, and the principle that the amplitude of the decrease of the RSRQ value of the serving cell in the first time period is greater than or equal to the second threshold is the same as that described above, and thus, the description thereof is not repeated.
Wherein the magnitude of the RSRP value decrease of the serving cell within the first duration comprises: and the difference between the RSRP value corresponding to the first time node and the RSRP value corresponding to the second time node in the first time length.
The first time node is a time node corresponding to the first time when the RSRP value of the serving cell is obtained for the first time within the first time length; and the second time node is the time node corresponding to the time when the RSRP value of the serving cell is obtained for the last time in the first time length. For example, the first duration is 30 seconds, the RSRP value of the serving cell is obtained every 10 seconds, and the first time node may be a time node corresponding to the 0 th second; the second time node may be a 30 th corresponding time node.
Correspondingly, the difference between the RSRP value corresponding to the first time node and the RSRP value corresponding to the second time node in the first duration may be a difference between the RSRP value of the serving cell acquired at 0 th second and the RSRP value of the serving cell acquired at 30 th second being 3dBm, that is, 10dBm-3dBm is 7 dBm. That is, the RSRP value of the serving cell decreases by 7dBm in the first duration.
The first threshold sum can be set according to actual needs and is any value greater than or equal to 0 dBm. If the descending amplitude of the RSRP value of the serving cell in the first time length is a negative value, it indicates that the variation of the RSRP value of the serving cell in the first time length is in an ascending trend, and the first condition is not satisfied at this time.
Scenario 2
And/or in the RSRP values of the serving cell in the first time period, the number of times that the RSRP value with the prior acquisition time is larger than the RSRP value with the later acquisition time is larger than the number of times that the RSRP value with the prior acquisition time is smaller than or equal to the RSRP value with the later acquisition time, and/or in the RSRQ values of the serving cell in the first time period, the number of times that the RSRQ value with the prior acquisition time is larger than the RSRQ value with the later acquisition time is larger than the number of times that the RSRQ value with the prior acquisition time is smaller than or equal to the RSRQ value with the later acquisition time.
For example, the RSRP value is used, and the principle of determining whether the first condition is satisfied according to the RSRQ value of the serving cell within the first duration is the same as that described above, and is not repeated here.
Acquiring a time-preceding RSRP value, comprising: in the first time period, acquiring the RSRP value with a later time relative to the previous RSRP value, correspondingly, includes: and in the first time period, acquiring the RSRP value of which the time is later.
The first time is still 30 seconds for example. Within 30 seconds, the RSRP value obtained at 0 second is 10dbm (a), the RSRP value obtained at 10 second is 9dbm (b), the RSRP value obtained at 20 second is 10dbm (c), and the RSRP value obtained at 30 second is 7dbm (d). For a, the acquisition time of b, c and d is relatively later; for b, c and d, the acquisition time of a is relatively prior.
In some embodiments, the number of times that the RSRP value preceding the acquisition time is greater than the RSRP value following the acquisition time comprises: comparing the RERP value prior to any acquisition time with the RSRP value after at least one acquisition time respectively, wherein the number of the RERP value prior to any acquisition time being larger than the RSRP value after at least one acquisition time is the number of times that the RSRP value prior to any acquisition time is larger than the RSRP value after the at least one acquisition time. For example, the number of times a is greater than b, c, d is 2 compared to b, c, d.
In the above example, the number of times that the RSRP value before the acquisition time is greater than the RSRP value after the acquisition time is 4 (i.e., a is greater than b, a is greater than d, b is greater than d, and c is greater than d); the number of times that the RSRP value before the acquisition time is less than or equal to the RSRP value after the acquisition time is 2 (i.e., a is equal to c, b is less than c). Since 4 is greater than 2, it is described that the RSRP value of the serving cell satisfies the first condition in the above example.
Scene 3
In the RSRP values of the serving cell in the first duration, the times that the slope of a time-RSRP curve of any two adjacent RSRP values is smaller than a sixth threshold is larger than the times that the slope of the time-RSRP curve of any two adjacent RSRP values is larger than or equal to the sixth threshold; and/or the number of times that the slope of a time-RSRQ curve of any two adjacent RSRQ values is smaller than a sixth threshold is larger than or equal to the number of times that the slope of a time-RSRQ curve of any two adjacent RSRQ values is larger than the sixth threshold in the RSRQ values of the serving cells in the first duration; wherein the sixth threshold may be 0.
For example, the RSRP value is used, and the principle of determining whether the first condition is satisfied according to the RSRQ value of the serving cell within the first duration is the same as that described above, and is not repeated here.
The two adjacent RSRP values include: and in the process of acquiring the RSRP of the serving cell, two time-adjacent RSRP values are acquired.
The first time is still 30 seconds for example. Within 30 seconds, the RSRP value obtained at 0 second is 10dbm (a), the RSRP value obtained at 10 second is 9dbm (b), the RSRP value obtained at 20 second is 10dbm (c), and the RSRP value obtained at 30 second is 7dbm (d). Where a and b are adjacent RSRP values, b and c are adjacent RSRP values, and c and d are adjacent RSRP values.
In some embodiments, the number of times that the slope of the time-RSRP curve of any two adjacent RSRP values within the first time is less than the sixth threshold comprises: and determining any two adjacent RSRP values in the first time, comparing the slope of the time-RSRP curve with a sixth threshold, wherein the times that the slope is smaller than the sixth threshold are the times that the slope of the time-RSRP curve of any two adjacent RSRP values in the first time is smaller than the sixth threshold. For example, in the first time, when the slope of a and b is-0.1, the slope of b and c is 0.1, the slope of c and d is-0.3, and the sixth threshold is 0, the number of times that the slope is smaller than the sixth threshold is 2, the number of times that the slope is greater than or equal to the sixth threshold is 1, and since 2 is greater than 1, it is explained that the RSRP value of the serving cell satisfies the first condition.
The essence of each of the three scenarios is that a variation trend of the signal quality of the serving cell is determined according to a variation trend of the RSRP and/or the RSRQ value in the serving cell measurement result, so that to avoid inaccurate determination due to fluctuation of the RSRP and/or the RSRQ in the serving cell measurement result, only the number of times that the RSRP value before the acquisition time is greater than the RSRP value after the acquisition time is considered, and the number of times that the RSRP value before the acquisition time is equal to the RSRP value after the acquisition time is not considered, thereby avoiding erroneous determination due to fluctuation of the signal quality rather than continuous decrease.
In addition, the essence of the three methods for determining that the signal quality of the serving cell satisfies the first condition in step S201 in the present application is to determine whether the signal quality of the serving cell is a decreasing trend, so in the specific implementation, the three scenarios listed above are not limited, and other methods capable of determining that the signal quality of the serving cell is a decreasing trend should be covered in the protection scope of the present application.
In some embodiments, if the signal quality of the serving cell is in a decreasing trend, but the serving cell does not satisfy the neighbor cell measurement condition, the terminal device starts neighbor cell measurement.
Step S202, the terminal equipment determines a target cell to be switched based on the measurement result of the adjacent cell measurement.
In some embodiments, the serving cell may be a 2G, 3G, 4G, or 5G cell; the neighbor cell may be a 2G cell.
In specific implementation, the terminal device determines the neighboring cell with the best signal quality in the measurement result as the target cell to be switched.
Or, in specific implementation, the terminal device determines, based on the measurement result, at least one neighboring cell whose signal quality is higher than a third threshold, and determines, as a target cell to be handed over, a neighboring cell whose signal quality satisfies a second condition among the at least one neighboring cell.
In some embodiments, the signal quality of the neighbor cell satisfying the second condition may include at least one of the following three scenarios:
scene 4
The rising amplitude of the RSRP value of the adjacent cell in the second time length is larger than or equal to a fourth threshold value, and/or the rising amplitude of the RSRQ value of the adjacent cell in the second time length is larger than or equal to a fifth threshold value. The fourth threshold and the fifth threshold may be set according to actual needs.
Scenario 5
And/or the number of times of acquiring the RSRP value with the previous time being smaller than the RSRP value with the later time in the RSRP values of the adjacent cells in the second time period is greater than or equal to the number of times of acquiring the RSRP value with the previous time being larger than or equal to the RSRP value with the later time in the RSRP values of the adjacent cells in the second time period, and/or the number of times of acquiring the RSRP value with the previous time being smaller than the RSRP value with the later time in the RSRP values of the adjacent cells in the second time period is greater than or equal to the number of times of acquiring the RSRP value with the previous time being larger than or equal to the RSRP value.
Scene 6
In the RSRP values of the serving cell in the first duration, the times that the slope of a time-RSRP curve of any two adjacent RSRP values is smaller than a sixth threshold is larger than the times that the slope of the time-RSRP curve of any two adjacent RSRP values is larger than or equal to the sixth threshold; and/or the number of times that the slope of a time-RSRQ curve of any two adjacent RSRQ values is smaller than a sixth threshold is larger than or equal to the number of times that the slope of a time-RSRQ curve of any two adjacent RSRQ values is larger than the sixth threshold in the RSRQ values of the serving cells in the first duration; wherein the sixth threshold may be 0.
The essence of all the three scenarios is that the variation trend of the signal quality of the neighboring cell is judged according to the variation trend of the RSRP and/or RSRQ value in the measurement result of the neighboring cell, so that in order to avoid the situation that the RSRP and/or RSRQ in the measurement result of the neighboring cell fluctuates and the judgment is inaccurate, only the frequency that the RSRP value at the previous acquisition time is smaller than the RSRP value at the subsequent acquisition time is considered, the frequency that the RSRP value at the previous acquisition time is equal to the RSRP value at the subsequent acquisition time is not considered, and the erroneous judgment caused by the fluctuation of the signal quality rather than the continuous decrease is avoided.
In addition, the essence of the three methods for determining that the signal quality of the neighboring cell satisfies the second condition in step S202 in the embodiment of the present application is to determine whether the signal quality of the neighboring cell is in an ascending trend, so in the specific implementation, not limited to the three scenarios listed above, other methods capable of determining that the signal quality of the neighboring cell is in a descending trend should be covered in the protection scope of the present application.
Step S203, the terminal device sets RSRP of the target cell as a first value, and sends first information to the network device to which the serving cell belongs.
In some embodiments, after the terminal device determines a target cell to be switched, the terminal device sets an RSRP value of the target cell to a first value, and/or the terminal device sets an RSRQ of the target cell to a second value, and sends first information to the network device of the serving cell. Wherein the first value is greater than a true RSRP value of the target cell and the second value is greater than a true RSRQ value of the target cell; the first information is used for requesting the network device to which the serving cell belongs to send a handover instruction so as to enable the terminal device to handover to the target cell.
In specific implementation, the first information may be a Fake Measurement Report, which is used to deceive a network device to issue a handover event and a handover instruction, and may be used to start handover of a target cell in advance when the signal quality of the serving cell does not meet the Measurement condition of the neighboring cell.
In some embodiments, before step S201, the method may further include:
and step S200, judging the state of the terminal equipment.
In some embodiments, if the state of the terminal device is a motion state, the terminal device executes the process of any one of the steps S201 to S203; if the state of the terminal device is a non-motion state, the terminal device does not execute the process from the step S201 to the step S203.
In specific implementation, if the terminal device is in a motion state, the historical reference signal strength RSRP of the serving cell is greater than a first threshold, and the historical RSRP value of the serving cell meets a first trend, the terminal device obtains a measurement report of at least one neighboring cell.
In specific implementation, the terminal device may determine the motion state of the terminal device based on the RSRP value of the serving cell; or, the motion state of the terminal device is judged based on the position information sent by the network device to which the serving cell belongs.
If the RSRP value of the serving cell is in an ascending trend or a descending trend, determining that the terminal equipment is in a motion state; and if the RSRP value of the service cell fluctuates in a certain range, determining that the terminal equipment is in a non-motion state.
Therefore, by the cell measurement method provided by the embodiment of the application, when the signal quality of the serving cell does not satisfy the measurement condition of the neighboring cell, but because the signal quality of the serving cell is in a descending trend, the neighboring cell measurement is started in advance, after the target cell to be switched is determined, the first information is sent to the network device to which the serving cell belongs, and the network device is requested to send a switching instruction, so that the terminal device can be switched to the target cell in advance, and the situation that the signal quality of the serving cell is continuously deteriorated in the data transmission process of the terminal device, the network switching is performed when the data transmission quality is influenced or even the data transmission cannot be performed, is avoided, and the stability of the data transmission process is improved.
Fig. 3 shows a schematic flow chart of yet another alternative method for cell measurement provided in the embodiment of the present application, which will be described according to various steps.
Step S301, the terminal device judges whether the terminal device is in a motion state.
In specific implementation, the terminal device may determine the motion state of the terminal device based on the RSRP value of the serving cell; or, the motion state of the terminal device is judged based on the position information sent by the network device to which the serving cell belongs.
If the RSRP value of the serving cell is in an ascending trend or a descending trend, determining that the terminal equipment is in a motion state; and if the RSRP value of the serving cell fluctuates in a certain range, determining that the terminal equipment is in a non-motion state.
In some embodiments, if the state of the terminal device is a motion state, the terminal device performs step S302; and if the state of the terminal equipment is a non-motion state, the terminal equipment continuously judges the motion state of the terminal equipment.
Step S302, judging whether the signal quality of the service cell meets a first condition.
In some embodiments, in the case that the serving cell does not satisfy the neighbor cell measurement condition, it is determined whether the signal quality of the serving cell satisfies a first condition.
In some embodiments, the serving cell not satisfying the neighbor cell measurement condition comprises: in some embodiments, the serving cell not satisfying the neighbor cell measurement condition comprises: the RSRP of the serving cell is greater than or equal to the RSRP value in the condition for starting the measurement of the adjacent cell, and/or the RSRQ of the serving cell is greater than or equal to the RSRQ value in the condition for starting the measurement of the adjacent cell.
In some embodiments, the signal quality of the serving cell comprises at least one of: reference signal strength or reference signal quality.
In specific implementation, the condition that the serving cell does not satisfy the measurement condition of the neighboring cell may include: the current signal quality of the serving cell does not meet the measurement condition of the neighboring cell; the signal quality of the serving cell satisfying the first condition may include: the historical signal quality of the serving cell satisfies a first condition.
In some embodiments, the serving cell's signal quality satisfying the first condition may include at least one of the following three scenarios:
scenario 1
The descending amplitude of the RSRP value of the serving cell in the first time length is larger than or equal to a first threshold value, and the current RSRP value of the serving cell is larger than the RSRP value in the measuring condition of the adjacent cell, and/or the descending amplitude of the RSRQ value of the serving cell in the first time length is larger than or equal to a second threshold value, and the current RSRQ value is larger than the RSRQ value in the measuring condition of the adjacent cell.
Scenario 2
And/or in the RSRP values of the serving cell in the first time period, the number of times that the RSRP value with the prior acquisition time is larger than the RSRP value with the later acquisition time is larger than the number of times that the RSRP value with the prior acquisition time is smaller than or equal to the RSRP value with the later acquisition time, and/or in the RSRQ values of the serving cell in the first time period, the number of times that the RSRQ value with the prior acquisition time is larger than the RSRQ value with the later acquisition time is larger than the number of times that the RSRQ value with the prior acquisition time is smaller than or equal to the RSRQ value with the later acquisition time.
Scene 3
In the RSRP values of the serving cell in the first duration, the times that the slope of a time-RSRP curve of any two adjacent RSRP values is smaller than a sixth threshold is larger than the times that the slope of the time-RSRP curve of any two adjacent RSRP values is larger than or equal to the sixth threshold; and/or the number of times that the slope of a time-RSRQ curve of any two adjacent RSRQ values is smaller than a sixth threshold is larger than or equal to the number of times that the slope of a time-RSRQ curve of any two adjacent RSRQ values is larger than the sixth threshold in the RSRQ values of the serving cells in the first duration; wherein the sixth threshold may be 0.
In some embodiments, if the signal quality of the serving cell meets the first condition, the terminal device performs step S303, otherwise, the terminal device continues to determine whether the signal quality of the serving cell meets the first condition.
Step S303, the terminal device obtains a measurement result of at least one neighboring cell.
In some embodiments, the terminal device obtains a measurement result of at least one neighboring cell if the signal quality of the serving cell satisfies a first condition.
In some embodiments, the serving cell may be a 2G, 3G, 4G, or 5G cell; the neighbor cell may be a 2G cell.
Step S304, the terminal equipment determines the target cell to be switched based on the measuring result of the adjacent cell.
In specific implementation, the terminal device determines the neighboring cell with the best signal quality in the measurement result as the target cell to be switched.
Or, in specific implementation, the terminal device determines, based on the measurement result, at least one neighboring cell whose signal quality is higher than a third threshold, and determines, as a target cell to be handed over, a neighboring cell whose signal quality satisfies a second condition among the at least one neighboring cell.
In some embodiments, the signal quality of the neighbor cell satisfying the second condition may include at least one of the following three scenarios:
scene 4
The rising amplitude of the RSRP value of the adjacent cell in the second time length is larger than or equal to a fourth threshold value, and/or the rising amplitude of the RSRQ value of the adjacent cell in the second time length is larger than or equal to a fifth threshold value. The fourth threshold and the fifth threshold may be set according to actual needs.
Scenario 5
And/or the number of times of acquiring the RSRP value with the previous time being smaller than the RSRP value with the later time in the RSRP values of the adjacent cells in the second time period is greater than or equal to the number of times of acquiring the RSRP value with the previous time being larger than or equal to the RSRP value with the later time in the RSRP values of the adjacent cells in the second time period, and/or the number of times of acquiring the RSRP value with the previous time being smaller than the RSRP value with the later time in the RSRP values of the adjacent cells in the second time period is greater than or equal to the number of times of acquiring the RSRP value with the previous time being larger than or equal to the RSRP value.
Scene 6
In the RSRP values of the serving cell in the first duration, the times that the slope of a time-RSRP curve of any two adjacent RSRP values is smaller than a sixth threshold is larger than the times that the slope of the time-RSRP curve of any two adjacent RSRP values is larger than or equal to the sixth threshold; and/or the number of times that the slope of a time-RSRQ curve of any two adjacent RSRQ values is smaller than a sixth threshold is larger than or equal to the number of times that the slope of a time-RSRQ curve of any two adjacent RSRQ values is larger than the sixth threshold in the RSRQ values of the serving cells in the first duration; wherein the sixth threshold may be 0.
In specific implementation, if there is an adjacent cell satisfying the second condition, the terminal device executes step S305, otherwise, the terminal device continues to determine the adjacent cell to be switched.
Step S305, the terminal device sets RSRP of the target cell to a first value, and sends first information to a network device to which the serving cell belongs.
In some embodiments, after the terminal device determines a target cell to be switched, the terminal device sets an RSRP value of the target cell to a first value, and/or the terminal device sets an RSRQ of the target cell to a second value, and sends first information to the network device of the serving cell. Wherein the first value is greater than a true RSRP value of the target cell and the second value is greater than a true RSRQ value of the target cell; the first information is used for requesting the network device to which the serving cell belongs to send a handover instruction so as to enable the terminal device to handover to the target cell.
In specific implementation, the first information may be a Fake Measurement Report, which is used to deceive a network device to issue a handover event and a handover instruction, and may be used to start handover of a target cell in advance when the signal quality of the serving cell does not meet the Measurement condition of the neighboring cell.
Therefore, by the cell measurement method provided by the embodiment of the application, in a scene where the position of the terminal device moves during a call service or a data transmission service in a 5G network, the current connected signal is continuously deteriorated along with the position movement, so that the call tone quality is deteriorated, and even the call is dropped. The reason is that the threshold value for switching the wireless connection cell of the 3GPP protocol specification is smaller, and the terminal passively receives the measurement reconfiguration message sent by the network side to report the signal measurement result. This often results in a delay in handover, and is also a major cause of poor quality of speech and dropped calls. In the embodiment of the application, the wireless network signal strength is detected locally in advance at the terminal equipment, the continuous deterioration trend of the current connection in the process is calculated, a higher-quality target cell is calculated in advance, the measurement report is actively reported, the signal strength report value of the target cell is enhanced, the network side is prompted to issue and switch to the target cell with high signal strength in advance, and therefore conversation tone quality and conversation process stability are provided.
Fig. 4 is a schematic diagram of an alternative structure of a terminal device according to an embodiment of the present application, which will be described according to various steps.
In some embodiments, the terminal device 400 comprises an activation unit 401 and a determination unit 402.
In a case that a serving cell does not satisfy a neighbor cell measurement condition, if the signal quality of the serving cell satisfies a first condition, the starting unit 401 starts neighbor cell measurement;
the determining unit 402 is configured to determine, by the terminal device 400, a target cell to be handed over based on a measurement result of the measurement of the neighboring cell.
In some embodiments, the serving cell's signal quality satisfying the first condition comprises: the reference signal strength RSRP value of the serving cell is decreased by a range larger than or equal to a first threshold value within a first time period, and the current RSRP value of the serving cell is larger than the RSRP value in the neighbor cell measurement condition, and/or the signal receiving quality RSRQ value of the serving cell is decreased by a range larger than or equal to a second threshold value within the first time period, and the current RSRQ value is larger than the RSRQ value in the neighbor cell measurement condition.
In still other embodiments, the serving cell having a signal quality that satisfies the first condition comprises: and/or in the RSRP values of the serving cell in the first time period, the number of times that the RSRP value with the prior acquisition time is larger than the RSRP value with the later acquisition time is larger than the number of times that the RSRP value with the prior acquisition time is smaller than or equal to the RSRP value with the later acquisition time, and/or in the RSRQ values of the serving cell in the first time period, the number of times that the RSRQ value with the prior acquisition time is larger than the RSRQ value with the later acquisition time is larger than the number of times that the RSRQ value with the prior acquisition time is smaller than or equal to the RSRQ value with the later acquisition time.
In some embodiments, the determining unit 402 specifically determines that the neighboring cell with the best signal quality in the measurement result is the target cell to be handed over.
In other embodiments, the determining unit 402 is configured to determine, based on the measurement result, at least one neighboring cell whose signal quality is higher than a third threshold, and determine, as the target cell to be handed over, a neighboring cell whose signal quality satisfies a second condition in the at least one neighboring cell.
In some embodiments, the signal quality of the neighbor cell satisfying the second condition comprises: the rising amplitude of the RSRP value of the adjacent cell in the second time length is larger than or equal to a fourth threshold value, and/or the rising amplitude of the RSRQ value of the adjacent cell in the second time length is larger than or equal to a fifth threshold value.
In some embodiments, the terminal device 400 may further include a setting unit 403.
The setting unit 403 is configured to set RSRP of the target cell to a first value, where the first value is greater than a true RSRP value of the target cell; and/or setting the RSRQ of the target cell as a second value, wherein the second value is larger than the real RSRQ value of the target cell.
In some embodiments, the terminal device 400 may further include a sending unit 404.
The sending unit 404 is configured to send first information to a network device to which the serving cell belongs; the first information is used to request the network device to which the serving cell belongs to send a handover command, so that the terminal device 400 is handed over to the target cell.
Fig. 5 is a schematic diagram of a hardware composition structure of a terminal device according to an embodiment of the present application, where the terminal device 700 includes: at least one processor 701, a memory 702, and at least one network interface 704. The various components in the terminal device 700 are coupled together by a bus system 705. It is understood that the bus system 705 is used to enable communications among the components. The bus system 705 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various busses are labeled in figure 5 as the bus system 705.
It will be appreciated that the memory 702 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. The non-volatile Memory may be ROM, Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), magnetic random access Memory (FRAM), Flash Memory (Flash Memory), magnetic surface Memory, optical Disc, or Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The memory 702 described in embodiments herein is intended to comprise, without being limited to, these and any other suitable types of memory.
The memory 702 in the embodiments of the present application is used to store various types of data to support the operation of the terminal device 700. Examples of such data include: any computer program for operating on terminal device 700, such as application 722. A program implementing the method of an embodiment of the present application may be included in the application 722.
The method disclosed in the embodiment of the present application may be applied to the processor 701, or implemented by the processor 701. The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 701. The Processor 701 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor 701 may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 702, and the processor 701 may read the information in the memory 702 and perform the steps of the aforementioned methods in conjunction with its hardware.
In an exemplary embodiment, the terminal Device 700 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), FPGAs, general purpose processors, controllers, MCUs, MPUs, or other electronic components for performing the aforementioned methods.
The embodiment of the application also provides a storage medium for storing the computer program.
Optionally, the storage medium may be applied to the first client in the embodiment of the present application, and the computer program enables the computer to execute corresponding processes in each method in the embodiment of the present application, which is not described herein again for brevity.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present application and should not be taken as limiting the scope of the present application, as any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the scope of the present application.
Claims (11)
1. A method of cell measurement, the method comprising:
under the condition that a serving cell does not meet a measurement condition of an adjacent cell, if the signal quality of the serving cell meets a first condition, starting measurement of the adjacent cell by terminal equipment;
and the terminal equipment determines a target cell to be switched based on the measurement result of the measurement of the adjacent cell.
2. The method of claim 1, wherein the serving cell's signal quality satisfying a first condition comprises:
the descending amplitude of the reference signal strength RSRP value of the serving cell in the first time length is larger than or equal to a first threshold value, and the current RSRP value of the serving cell is larger than the RSRP value in the measurement condition of the adjacent cell,
and/or the amplitude of the decrease of the signal receiving quality RSRQ value of the serving cell in the first time length is larger than or equal to a second threshold, and the current RSRQ value is larger than the RSRQ value in the measurement condition of the adjacent cell.
3. The method of claim 1, wherein the serving cell's signal quality satisfying a first condition comprises:
in the RSRP values of the serving cells in the first time length, the times that the RSRP value with the prior acquisition time is larger than the RSRP value with the later acquisition time is larger than the times that the RSRP value with the prior acquisition time is smaller than or equal to the RSRP value with the later acquisition time,
and/or in the RSRQ values of the serving cells in the first time length, the frequency that the RSRQ value with the prior acquisition time is larger than the RSRQ value with the later acquisition time is larger than the frequency that the RSRQ value with the prior acquisition time is smaller than or equal to the RSRQ value with the later acquisition time.
4. The method according to claim 1, wherein the terminal device determines the target cell to be handed over based on the measurement result measured by the neighboring cell, including:
and the terminal equipment determines the adjacent cell with the best signal quality in the measurement result as a target cell to be switched.
5. The method according to claim 1, wherein the terminal device determines the target cell to be handed over based on the measurement result measured by the neighboring cell, including:
and determining at least one adjacent cell with the signal quality higher than a third threshold value based on the measurement result, and determining the adjacent cell with the signal quality meeting a second condition in the at least one adjacent cell as a target cell to be switched.
6. The method of claim 5, wherein the signal quality of the neighbor cell satisfying a second condition comprises:
the rising amplitude of the RSRP value of the adjacent cell in the second time length is larger than or equal to a fourth threshold value, and/or the rising amplitude of the RSRQ value of the adjacent cell in the second time length is larger than or equal to a fifth threshold value.
7. The method of claim 1, further comprising:
the terminal equipment sets the RSRP of the target cell to be a first value, and the first value is larger than the real RSRP value of the target cell;
and/or the terminal equipment sets the RSRQ of the target cell to be a second value, and the second value is larger than the real RSRQ value of the target cell.
8. The method of claim 7, further comprising:
sending first information to network equipment to which the serving cell belongs;
the first information is used for requesting the network device to which the serving cell belongs to send a handover instruction so as to enable the terminal device to handover to the target cell.
9. A terminal device, characterized in that the terminal device comprises:
the device comprises a starting unit, a judging unit and a judging unit, wherein the starting unit is used for starting the measurement of the adjacent cell if the signal quality of the serving cell meets a first condition under the condition that the serving cell does not meet the measurement condition of the adjacent cell;
and the determining unit is used for determining the target cell to be switched by the terminal equipment based on the measuring result of the adjacent cell.
10. A storage medium storing an executable program, wherein the executable program, when executed by a processor, implements the cell measurement method of any one of claims 1 to 8.
11. A cell measurement arrangement comprising a memory, a processor and an executable program stored on the memory and executable by the processor, characterized in that the processor executes the executable program to perform the steps of the cell measurement method according to any of claims 1 to 8.
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