CN114339915A - Cell switching method, device and storage medium - Google Patents
Cell switching method, device and storage medium Download PDFInfo
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Abstract
The present disclosure relates to the field of mobile communications, and provides a cell switching method, device and storage medium, wherein the method comprises: in response to a terminal device being handed over from a first cell to a second cell, determining whether a data transmission rate of the terminal device in the second cell meets a data transmission rate requirement; in response to the data transmission rate of the terminal equipment in the second cell not meeting the data transmission rate requirement, determining whether the signal quality of the first cell at the current moment meets a signal quality deterioration condition; and switching to the first cell in response to the signal quality not satisfying the signal quality degradation condition. The method and the device can effectively solve the problem that the network function cannot be used after the user is switched to the failure cell.
Description
Technical Field
The present disclosure relates to the field of mobile communications, and in particular, to a cell switching method, apparatus, and storage medium.
Background
In the operation process of the mobile network, the operation performance of the cell is often seriously deteriorated due to a failure, external interference and the like. Although there is signal output in the cell with seriously deteriorated operation performance, and the user can detect the signal of the cell and reside in the cell in a cell selection, cell reselection or cell switching manner, the user accessing the cell cannot normally use the network function. Therefore, the detection of a failed cell (or referred to as a "performance unavailable cell") is particularly important.
Currently, the detection of a failed cell is mainly to detect a specific fault in a base station to determine whether the failed cell exists; or the base station selects a terminal executing the auxiliary detection behavior, sends indication information for executing the auxiliary detection behavior to the terminal so that the terminal executes the auxiliary detection behavior according to the indication information, and returns a detection execution result to judge whether the cell to be detected is a failure cell.
However, when the above-mentioned technology is used to detect a failed cell, there is a problem that the failed cell is missed or mistakenly detected, and thus the user cannot normally use the network function after switching to the failed cell.
Disclosure of Invention
In order to solve the above problem, the present disclosure provides a cell switching method, device and storage medium, so that a user can still use a network function normally after switching to a failed cell.
In a first aspect, the present disclosure provides a cell handover method, including:
in response to a terminal device being handed over from a first cell to a second cell, determining whether a data transmission rate of the terminal device in the second cell meets a data transmission rate requirement;
in response to the data transmission rate of the terminal equipment in the second cell not meeting the data transmission rate requirement, determining whether the signal quality of the first cell at the current moment meets a signal quality deterioration condition;
and switching to the first cell in response to the signal quality not satisfying the signal quality degradation condition.
In one possible embodiment, the determining the Signal quality of the first cell at the current time satisfies the Signal quality degradation condition includes: determining that the signal quality of the first cell at the current moment does not meet a signal quality deterioration condition in response to the fact that the difference value of the first RSRP and the second RSRP is smaller than a first quality change threshold value or the difference value of the first SINR and the second SINR is smaller than a second quality change threshold value; the first RSRP is the RSRP of the first cell at the current moment; the second RSRP is the RSRP of the first cell before the terminal equipment is switched to the second cell; the first SINR is the SINR of the first cell at the current moment; the second SINR is an SINR of the first cell before the terminal device switches to the second cell.
In one possible implementation, determining whether the signal quality of the first cell at the current time meets the signal quality degradation condition further includes: and determining that the signal quality of the first cell at the current moment meets the signal quality deterioration condition in response to the fact that the difference value of the first RSRP and the second RSRP is larger than or equal to a first quality change threshold value and the difference value of the first SINR and the second SINR is larger than or equal to a second quality change threshold value.
In a possible embodiment, the method further comprises: measuring the signal quality of at least one neighboring cell of the terminal device in response to the signal quality satisfying the signal quality degradation condition; and determining the neighbor cell with the best signal quality as a third cell in at least one neighbor cell. And switching to the third cell.
In one possible implementation, the determining whether the data transmission rate of the terminal device in the second cell meets the data transmission rate requirement includes: determining that the data transmission rate of the terminal equipment in the second cell does not meet the data transmission rate requirement in response to the ratio of the average data transmission rate of the terminal equipment in the second cell to the average data transmission rate in the first cell being less than a first rate change threshold and/or the difference between the average data transmission rate of the terminal equipment in the first cell and the average data transmission rate in the second cell being greater than a second rate change threshold; wherein the first rate change threshold and the second rate change threshold are both greater than zero.
In a possible implementation manner, determining whether the data transmission rate of the terminal device in the second cell meets the data transmission rate requirement further includes: and determining that the data transmission rate of the terminal equipment in the second cell meets the data transmission rate requirement in response to the ratio of the average data transmission rate of the terminal equipment in the second cell to the average data transmission rate in the first cell being greater than or equal to a first rate change threshold and the difference between the average data transmission rate of the terminal equipment in the first cell and the average data transmission rate in the second cell being less than or equal to a second rate change threshold.
In one possible embodiment, the handover to the first cell includes: and sending a measurement report to the network equipment, wherein the measurement report is used for requesting to switch to the first cell.
In a second aspect, the present disclosure provides a cell switching apparatus, including:
a first determining module, configured to determine, in response to a handover of a terminal device from a first cell to a second cell, whether a data transmission rate of the terminal device in the second cell meets a data transmission rate requirement;
a second determining module, configured to determine, in response to that the data transmission rate of the terminal device in the second cell does not satisfy the data transmission rate requirement, whether the signal quality of the first cell at the current time satisfies a signal quality degradation condition;
and the switching module is used for responding to the signal quality not meeting the signal quality deterioration condition and switching to the first cell.
In a possible implementation manner, the signal quality includes RSRP and SINR, and the second determining module is specifically configured to: determining that the signal quality of the first cell at the current moment does not meet a signal quality deterioration condition in response to the fact that the difference value of the first RSRP and the second RSRP is smaller than a first quality change threshold value or the difference value of the first SINR and the second SINR is smaller than a second quality change threshold value; the first RSRP is the RSRP of the first cell at the current moment; the second RSRP is the RSRP of the first cell before the terminal equipment is switched to the second cell; the first SINR is the SINR of the first cell at the current moment; the second SINR is an SINR of the first cell before the terminal device switches to the second cell.
In one possible implementation, the second determining module is further configured to: and determining that the signal quality of the first cell at the current moment meets the signal quality deterioration condition in response to the fact that the difference value of the first RSRP and the second RSRP is larger than or equal to a first quality change threshold value and the difference value of the first SINR and the second SINR is larger than or equal to a second quality change threshold value.
In one possible implementation, the second determining module is further configured to: measuring the signal quality of at least one neighboring cell of the terminal device in response to the signal quality satisfying the signal quality degradation condition; determining a neighboring cell with the best signal quality as a third cell in at least one neighboring cell; and switching to the third cell.
In a possible implementation manner, the first determining module is specifically configured to: determining that the data transmission rate of the terminal equipment in the second cell does not meet the data transmission rate requirement in response to the ratio of the average data transmission rate of the terminal equipment in the second cell to the average data transmission rate in the first cell being less than a first rate change threshold and/or the difference between the average data transmission rate of the terminal equipment in the first cell and the average data transmission rate in the second cell being greater than a second rate change threshold; wherein the first rate change threshold and the second rate change threshold are both greater than zero.
In one possible implementation, the first determining module is further configured to: and determining that the data transmission rate of the terminal equipment in the second cell meets the data transmission rate requirement in response to the ratio of the average data transmission rate of the terminal equipment in the second cell to the average data transmission rate in the first cell being greater than or equal to a first rate change threshold and the difference between the average data transmission rate of the terminal equipment in the first cell and the average data transmission rate in the second cell being less than or equal to a second rate change threshold.
In a possible implementation, the switching module is specifically configured to: and sending a measurement report to the network equipment, wherein the measurement report is used for requesting to switch to the first cell.
In a third aspect, the present disclosure provides an electronic device comprising:
a memory and a processor;
the memory is used for storing program instructions;
the processor is configured to invoke program instructions in the memory to perform the cell handover method of any of the first aspects.
In a fourth aspect, the present disclosure provides a computer-readable storage medium having computer program instructions stored therein, where the computer program instructions, when executed, implement the cell handover method according to any one of the first aspect.
In a fifth aspect, the present disclosure provides a computer program product comprising a computer program which, when executed by a processor, implements the cell handover method of any one of the first aspects.
The present disclosure provides a cell switching method, device and storage medium, the method comprising: in response to a terminal device being handed over from a first cell to a second cell, determining whether a data transmission rate of the terminal device in the second cell meets a data transmission rate requirement; in response to the data transmission rate of the terminal equipment in the second cell not meeting the data transmission rate requirement, determining whether the signal quality of the first cell at the current moment meets a signal quality deterioration condition; and switching to the first cell in response to the signal quality not satisfying the signal quality degradation condition. In this disclosure, after the terminal device is switched from the first cell to the second cell, it needs to determine whether the data transmission rate of the terminal device in the second cell meets the data transmission rate requirement, and when the data transmission rate in the second cell does not meet the data transmission rate requirement, it indicates that the communication quality of the second cell is poor, and the second cell is a failed cell, and at this time, if the signal quality of the first cell does not meet the signal quality degradation condition, that is, the communication quality of the first cell is better, the terminal device is switched back to the first cell. The method can effectively solve the problem that the network function cannot be used after the user is switched to the invalid cell, and improve the user experience.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present disclosure;
fig. 2 is a flowchart of a cell handover method according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a cell switching apparatus according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
First, the related terms of the present disclosure are explained:
digital Subscriber Line (DSL) refers to a combination of transmission technologies using a telephone Line as a transmission medium.
A Digital Video Disc (DVD), which is a high-density DVD, is used for recording image pictures.
Static Random Access Memory (SRAM), a type of Random Access Memory, which can maintain data storage as long as it is powered on.
The Electrically Erasable Programmable Read Only Memory (EEPROM) refers to an Electrically Erasable Programmable Read Only Memory. The memory chip is a memory chip with no data loss after power failure. And, a general Programmable Read Only Memory (PROM).
Read-Only memories (ROMs) operate in a non-destructive manner, and Only Read-out information is written to. The information is fixed after being written once, and the information is not lost even if the power supply is cut off.
The LCD is constructed by placing a Liquid Crystal box between two parallel glass substrates, arranging a thin film transistor on the lower substrate glass, arranging a color filter on the upper substrate glass, and controlling the rotation direction of Liquid Crystal molecules by changing the signal and voltage on the thin film transistor, thereby controlling whether polarized light of each pixel point is emitted or not to achieve the purpose of displaying.
Complementary Metal Oxide Semiconductor (CMOS), which is a technology for manufacturing large-scale integrated circuit chips or chips manufactured by the technology, is a readable and writable chip on a computer motherboard.
The Charge-Coupled Device (CCD) is a detecting element which uses Charge quantity to express signal magnitude and uses coupling mode to transmit signal, and has the advantages of self-scanning, wide sensing spectrum range, small distortion, small volume, light weight, low system noise, small power consumption, long service life and high reliability, etc., and can be made into combined piece with very high integration level.
At present, the existing detection method of a failure cell mainly determines whether a cell is a failure cell by detecting a specific fault in a base station; or, by adopting the terminal auxiliary detection method, the base station side selects the terminal equipment executing the auxiliary detection behavior, sends the indication information of executing the detection behavior to the terminal equipment so that the terminal equipment executes the detection behavior according to the indication information, and returns the detection execution result, thereby judging whether the cell to be detected is the failure cell.
However, the above detection method often has the problems of false detection and missed detection of the failed cell, so that the network function cannot be used normally after the cell is accessed.
Based on the foregoing problems, embodiments of the present disclosure provide a cell handover method, apparatus, and storage medium. Evaluating whether the data transmission rate is rapidly reduced after the terminal equipment is switched to a new cell or not by evaluating the data transmission rate before and after the terminal equipment is switched, measuring the signal quality of the cell before switching by the terminal equipment when the data transmission rate is rapidly reduced after the terminal equipment is evaluated and found to be switched, and re-switching the terminal equipment to the cell before switching if the signal quality of the cell before switching still maintains the quality level before switching; if the signal quality of the cell before switching is obviously deteriorated, the terminal equipment can measure the signal quality of all the adjacent cells and select the optimal adjacent cell for switching. Therefore, the user terminal can normally use the network function after switching the cell.
Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present disclosure. As shown in fig. 1, the application scenario includes: a base station 100, a terminal device 101, a first cell 102 and a second cell 103. Wherein: when the terminal device 101 is handed over from the first cell 102 to the second cell 103, the reason for the handover may be that the terminal device moves from the coverage of the first cell 102 to the coverage of the second cell 103. At this time, the terminal device 101 detects the data transmission rate of the second cell 103, and when the data transmission rate of the second cell is low and does not meet the requirement, the handover back to the first cell 102 is considered again.
Therefore, in order to switch back to the first cell 102, the signal quality before and after the switching of the first cell 102 needs to be compared again, and if the signal quality of the first cell 102 does not deteriorate after the terminal device is switched to the second cell 103, the terminal device is switched to the first cell 102 again; on the contrary, if the signal quality of the first cell 102 is degraded, the terminal device needs to determine a cell with higher signal quality in the neighboring cell and switch to the cell.
It should be noted that fig. 1 is only a schematic diagram of an application scenario provided by the embodiment of the present disclosure, and the embodiment of the present disclosure does not limit the devices included in fig. 1, nor does it limit the positional relationship between the devices in fig. 1. For example, fig. 1 may also include a plurality of terminal devices, and fig. 1 may also include a plurality of base stations.
Next, a cell switching method is described by way of a specific embodiment.
Fig. 2 is a flowchart of a cell handover method according to an embodiment of the present disclosure, and as shown in fig. 2, the method includes:
s201, responding to the terminal device switching from the first cell to the second cell, and determining whether the data transmission rate of the terminal device in the second cell meets the data transmission rate requirement.
The data transmission rate includes an uplink data transmission rate and a downlink data transmission rate. The uplink data transmission rate is used for expressing the uploading rate of the terminal equipment; the downlink data transmission rate is used to indicate the download rate of the terminal device.
The first cell and the second cell may be adjacent cells or non-adjacent cells. The terminal device may perform a cell handover operation through the base station.
Because the first cell and the second cell have different loads and different uplink and downlink rates, and the number of the terminal devices is different. Thus, it is possible to determine whether the data transmission rate of the second cell satisfies the data transmission requirement by comparing the data transmission rates of the two cells.
It should be understood that: the first cell is considered to be in a normal working state, and the terminal equipment of the user in the first cell can normally use the network function. That is, the data transmission rate of the second cell may be determined with reference to the first cell.
S202, in response to the fact that the data transmission rate of the terminal equipment in the second cell does not meet the data transmission rate requirement, determining whether the signal quality of the first cell at the current moment meets the signal quality deterioration condition.
And if the data transmission rate of the second cell does not meet the data transmission rate requirement, the terminal equipment needs to be switched to the first cell again. At this time, since the first cell may be changed, the signal quality of the first cell before and after the handover of the terminal device needs to be compared again.
The signal quality of the first cell may indirectly reflect the current data transmission capability of the first cell.
And S203, responding to the signal quality not meeting the signal quality deterioration condition, and switching to the first cell.
If the signal quality of the first cell is good, the signal quality deterioration condition is not satisfied, which indicates that the terminal device can be switched back to the first cell. It can be understood that: it can be deduced from the lack of degradation in signal quality that the signal quality of the first cell after handover of the terminal device does not change significantly compared to that before handover.
The present disclosure provides a cell switching method, device and storage medium, the method comprising: in response to a terminal device being handed over from a first cell to a second cell, determining whether a data transmission rate of the terminal device in the second cell meets a data transmission rate requirement; in response to the data transmission rate of the terminal equipment in the second cell not meeting the data transmission rate requirement, determining whether the signal quality of the first cell at the current moment meets a signal quality deterioration condition; and switching to the first cell in response to the signal quality not satisfying the signal quality degradation condition. In this disclosure, after the terminal device is switched from the first cell to the second cell, it needs to determine whether the data transmission rate of the terminal device in the second cell meets the data transmission rate requirement, and when the data transmission rate in the second cell does not meet the data transmission rate requirement, it indicates that the communication quality of the second cell is poor, and the second cell is a failed cell, and at this time, if the signal quality of the first cell does not meet the signal quality degradation condition, that is, the communication quality of the first cell is better, the terminal device is switched back to the first cell. The method can effectively solve the problem that the network function cannot be used after the user is switched to the invalid cell, and improve the user experience.
For example, the determination of whether the data transmission rate of the second cell meets the data transmission rate requirement may be performed by comparing with the first cell. For example, in some embodiments, determining whether the data transmission rate of the terminal device in the second cell meets the data transmission rate requirement may include: determining that the data transmission rate of the terminal equipment in the second cell does not meet the data transmission rate requirement in response to the ratio of the average data transmission rate of the terminal equipment in the second cell to the average data transmission rate in the first cell being less than a first rate change threshold and/or the difference between the average data transmission rate of the terminal equipment in the first cell and the average data transmission rate in the second cell being greater than a second rate change threshold; wherein the first rate change threshold and the second rate change threshold are both greater than zero.
It should be understood that: the data transmission rate situation in a certain cell over a period of time can be shown by the average data transmission rate. As already stated above, the data transfer rate includes an upload rate and a download rate. For example, for a terminal device with an amount of upload data greater than an amount of download data, if a ratio of an average upload rate of the terminal device in the second cell to an average upload rate of the terminal device in the first cell is smaller than a first rate change threshold, the first rate change threshold is greater than zero, and may be 0.9, for example. Alternatively, when the difference between the average uploading rate of the terminal device in the first cell and the average uploading rate of the terminal device in the second cell is greater than the second rate change threshold, the second rate change threshold is also greater than zero, for example, the second rate change threshold may be 10.
When any one of the above conditions is satisfied, it may be determined that the upload rate of the second cell does not satisfy the upload rate requirement. Similarly, whether the download rate of the second cell meets the download rate requirement can be determined by the same method. And then judging whether the data transmission rate of the second cell meets the data transmission rate requirement.
And otherwise, determining that the data transmission rate of the terminal equipment in the second cell meets the data transmission rate requirement in response to that the ratio of the average data transmission rate of the terminal equipment in the second cell to the average data transmission rate in the first cell is greater than or equal to the first rate change threshold and the difference between the average data transmission rate of the terminal equipment in the first cell and the average data transmission rate in the second cell is less than or equal to the second rate change threshold.
Also corresponding to the above condition, for example, for a terminal device whose download data amount is greater than the upload data amount, when the ratio of the average download rate of the terminal device in the second cell to the average download rate of the first cell is greater than or equal to the first rate change threshold, and it is also satisfied that the average download rate of the terminal device in the first cell and the average download rate of the second cell are less than or equal to the second rate change threshold, the download rate of the second cell may be considered to satisfy the requirement. Similarly, whether the uploading rate of the second cell meets the requirement can be judged.
For the second cell whose data transmission rate does not satisfy the condition in the above case, the terminal device needs to switch back to the previous first cell. However, as an example, when RSRP is lower than-85 dBm, the terminal device cannot use the network function normally. Therefore, before switching to the first cell again, the signal quality of the first cell at that time needs to be judged, and similarly, the signal quality of the first cell at that time needs to be determined by a comparison method.
In some embodiments, the signal quality comprises RSRP and/or SINR. In this case, the determining whether the signal quality of the first cell at the current time satisfies the signal quality degradation condition may include: determining that the signal quality of the first cell at the current moment does not meet a signal quality deterioration condition in response to the fact that the difference value of the first RSRP and the second RSRP is smaller than a first quality change threshold value or the difference value of the first SINR and the second SINR is smaller than a second quality change threshold value; the first RSRP is the RSRP of the first cell at the current moment; the second RSRP is the RSRP of the first cell before the terminal equipment is switched to the second cell; the first SINR is the SINR of the first cell at the current moment; the second SINR is an SINR of the first cell before the terminal device switches to the second cell.
Optionally, the Signal Quality may further include at least one of a Received Signal Strength Indication (RSSI), a Reference Signal Receiving Quality (RSRQ), and a Received Signal Code Power (RSCP). When the signal quality includes any of the above information, the specific implementation of the method for determining whether the signal quality of the first cell at the current time meets the signal quality degradation condition is similar to the above manner, and details are not repeated here.
The signal to interference plus noise ratio can then be considered as the ratio of the effective signal to the sum of the interference and noise.
When the difference of the RSRP before and after the first cell switching does not exceed the first quality change threshold, or when the difference of the SINR before and after the first cell switching does not exceed the second quality change threshold. The signal quality of the first cell may be deemed to not satisfy the signal quality degradation adjustment. At which point the terminal device may be handed back to the first cell.
For still other embodiments, it is determined that the signal quality of the first cell at the current time meets the signal quality degradation condition in response to a difference between the first RSRP and the second RSRP being greater than or equal to a first quality variation threshold and a difference between the first SINR and the second SINR being greater than or equal to a second quality variation threshold.
When both of the above conditions are satisfied, the signal quality of the first cell at the present time satisfies the signal quality deterioration condition, and the signal quality is in a deteriorated state. Even if the terminal device is switched to the first cell, the terminal device cannot normally use the network function.
For this case, in some embodiments, in response to the signal quality satisfying the signal quality degradation condition, measuring the signal quality of at least one neighbor of the terminal device; and determining the neighbor cell with the best signal quality as a third cell in at least one neighbor cell. And switching to the third cell.
In particular, both RSRP and SINR factors need to be considered. When determining the signal quality of the neighboring cell, the influence weights of the RSRP and the SINR may be set to be the same, or different weights may be set, and the signal quality evaluation value of each cell of the neighboring cell is determined by combining the RSRP and the SINR. And taking the cell with the highest signal quality evaluation value as the cell with the best signal quality, and transferring the terminal equipment to the cell. The method can ensure that the terminal equipment is switched to other cells meeting the signal quality condition when the terminal equipment can not be normally used in the first cell and can not be normally used in the second cell, thereby ensuring the normal use of the terminal equipment.
In addition, in some embodiments, the terminal device further needs to send a measurement report to the network device when performing cell handover. For example, the handover to the first cell may include: and sending a measurement report to the network equipment, wherein the measurement report is used for requesting to switch to the first cell.
The network device may be a base station or other server, and the disclosure is not limited thereto.
Having introduced the cell handover method of the present disclosure, a cell handover apparatus of the present disclosure is next introduced. As shown in fig. 3, the cell switching apparatus 300 includes:
a first determining module 301, configured to determine, in response to a terminal device being handed over from a first cell to a second cell, whether a data transmission rate of the terminal device in the second cell meets a data transmission rate requirement;
a second determining module 302, configured to determine whether the signal quality of the first cell at the current time meets a signal quality degradation condition in response to that the data transmission rate of the terminal device in the second cell does not meet the data transmission rate requirement;
a handover module 303, configured to handover to the first cell in response to the signal quality not satisfying the signal quality degradation condition.
In one possible embodiment, the signal quality comprises RSRP and/or SINR. Correspondingly, the second determining module 302 is specifically configured to: determining that the signal quality of the first cell at the current moment does not meet a signal quality deterioration condition in response to the fact that the difference value of the first RSRP and the second RSRP is smaller than a first quality change threshold value or the difference value of the first SINR and the second SINR is smaller than a second quality change threshold value; the first RSRP is the RSRP of the first cell at the current moment; the second RSRP is the RSRP of the first cell before the terminal equipment is switched to the second cell; the first SINR is the SINR of the first cell at the current moment; the second SINR is an SINR of the first cell before the terminal device switches to the second cell.
In a possible implementation, the second determining module 302 is further configured to: and determining that the signal quality of the first cell at the current moment meets the signal quality deterioration condition in response to the fact that the difference value of the first RSRP and the second RSRP is larger than or equal to a first quality change threshold value and the difference value of the first SINR and the second SINR is larger than or equal to a second quality change threshold value.
In a possible implementation, the second determining module 302 is further configured to: measuring the signal quality of at least one neighboring cell of the terminal device in response to the signal quality satisfying the signal quality degradation condition; and determining the neighbor cell with the best signal quality as a third cell in at least one neighbor cell. And switching to the third cell.
In a possible implementation manner, the first determining module 301 may be specifically configured to: and in response to the ratio of the average data transmission rate of the terminal device in the second cell to the average data transmission rate in the first cell being less than the first rate change threshold and/or the difference between the average data transmission rate of the terminal device in the first cell and the average data transmission rate in the second cell being greater than the second rate change threshold, determining that the data transmission rate of the terminal device in the second cell does not meet the data transmission rate requirement. Wherein the first rate change threshold and the second rate change threshold are both greater than zero.
In one possible implementation, the first determining module 301 may be further configured to: and determining that the data transmission rate of the terminal equipment in the second cell meets the data transmission rate requirement in response to the ratio of the average data transmission rate of the terminal equipment in the second cell to the average data transmission rate in the first cell being greater than or equal to a first rate change threshold and the difference between the average data transmission rate of the terminal equipment in the first cell and the average data transmission rate in the second cell being less than or equal to a second rate change threshold.
In a possible implementation manner, the switching module 303 may specifically be configured to: and sending a measurement report to the network equipment, wherein the measurement report is used for requesting to switch to the first cell.
The apparatus provided in the embodiments of the present disclosure may be used to execute the method of the embodiments described above, and the implementation principle and the technical effect are similar, which are not described herein again.
It should be noted that the division of the modules of the above apparatus is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the processing module may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and a function of the processing module may be called and executed by a processing element of the apparatus. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when some of the above modules are implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor that can call program code. As another example, these modules may be integrated together, implemented in the form of a system-on-a-chip (SOC).
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions described in accordance with the embodiments of the disclosure are, in whole or in part, generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
Fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure. For example, the terminal device 400 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
Referring to fig. 4, the terminal device 400 may include one or more of the following components: a processing component 402, a memory 404, a power component 406, a multimedia component 408, an audio component 410, an input/output interface 412 (which may also be referred to as an I/O interface), a sensor component 414, and a communication component 416.
The processing component 402 generally controls overall operation of the terminal device 400, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 402 may include one or more processors 420 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 402 can include one or more modules that facilitate interaction between the processing component 402 and other components. For example, the processing component 402 can include a multimedia module to facilitate interaction between the multimedia component 408 and the processing component 402.
The memory 404 is configured to store various types of data to support operations at the terminal device 400. Examples of such data include instructions for any application or method operating on the terminal device 400, contact data, phonebook data, messages, pictures, videos, and the like. The memory 404 may be implemented by any type or combination of volatile or non-volatile memory devices 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 memory, flash memory, magnetic or optical disks.
The multimedia component 408 comprises a screen providing an output interface between the terminal device 400 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 touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 408 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the terminal device 400 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 410 is configured to output and/or input audio signals. For example, the audio component 410 includes a Microphone (MIC) configured to receive an external audio signal when the terminal apparatus 400 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 404 or transmitted via the communication component 416. In some embodiments, audio component 410 also includes a speaker for outputting audio signals.
The input/output interface 412 provides an interface between the processing component 402 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor component 414 includes one or more sensors for providing various aspects of status assessment for the terminal device 400. For example, sensor component 414 can detect an open/closed status of terminal device 400, the relative positioning of components, such as a display and keypad of terminal device 400, sensor component 414 can also detect a change in the position of terminal device 400 or a component of terminal device 400, the presence or absence of user contact with terminal device 400, orientation or acceleration/deceleration of terminal device 400, and a change in the temperature of terminal device 400. The sensor assembly 414 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 414 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 416 is configured to facilitate wired or wireless communication between the terminal device 400 and other devices. The terminal device 400 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 416 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 416 further includes a Near Field Communication (NFC) module to facilitate short-range communications. 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.
In an exemplary embodiment, the terminal device 400 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, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 404 comprising instructions, executable by the processor 420 of the terminal device 400 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
The present disclosure also provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the processor executes the computer-executable instructions, the scheme of the cell switching method is implemented.
The present disclosure also provides a computer program product comprising a computer program which, when executed by a processor, implements aspects of the cell handover method as above.
The computer-readable storage medium may be implemented by any type of volatile or non-volatile memory device or 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 memory, flash memory, magnetic or optical disk. Readable storage media can be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary readable storage medium is coupled to the processor such the processor can read information from, and write information to, the readable storage medium. Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the readable storage medium may also reside as discrete components in a cell switching apparatus.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present disclosure, and not for limiting the same; while the present disclosure has been described in detail with reference to the foregoing embodiments,
those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.
Claims (10)
1. A method of cell handover, comprising:
in response to a terminal device being handed over from a first cell to a second cell, determining whether a data transmission rate of the terminal device in the second cell meets a data transmission rate requirement;
in response to the data transmission rate of the terminal device in the second cell not meeting the data transmission rate requirement, determining whether the signal quality of the first cell at the current time meets a signal quality degradation condition;
switching to the first cell in response to the signal quality not satisfying a signal quality degradation condition.
2. The cell switching method according to claim 1, wherein the determining whether the signal quality of the first cell at the current time satisfies a signal quality degradation condition comprises:
the signal quality comprises Reference Signal Received Power (RSRP), and the signal quality of the first cell at the current moment is determined not to meet a signal quality deterioration condition in response to the difference value between the first RSRP and the second RSRP being smaller than a first quality change threshold; alternatively, the first and second electrodes may be,
the signal quality comprises a signal plus interference noise ratio (SINR), and the signal quality of the first cell at the current moment is determined not to meet a signal quality deterioration condition in response to the difference value between the first SINR and the second SINR being smaller than a second quality change threshold;
the first RSRP is the RSRP of the first cell at the current moment; the second RSRP is an RSRP of the first cell before the terminal device switches to the second cell; the first SINR is the SINR of the first cell at the current moment; the second SINR is an SINR of the first cell before the terminal device switches to the second cell.
3. The cell switching method according to claim 2, wherein the determining whether the signal quality of the first cell at the current time satisfies a signal quality degradation condition further comprises:
and determining that the signal quality of the first cell at the current moment meets a signal quality deterioration condition in response to the fact that the difference value of the first RSRP and the second RSRP is larger than or equal to a first quality change threshold value and the difference value of the first SINR and the second SINR is larger than or equal to a second quality change threshold value.
4. The cell switching method according to claim 3, further comprising:
measuring the signal quality of at least one neighbor cell of the terminal device in response to the signal quality satisfying a signal quality degradation condition;
determining a neighboring cell with the best signal quality as a third cell in the at least one neighboring cell;
switching to the third cell.
5. The cell switching method according to any one of claims 1 to 4, wherein the determining whether the data transmission rate of the terminal device in the second cell satisfies the data transmission rate requirement comprises:
determining that the data transmission rate of the terminal device in the second cell does not meet the data transmission rate requirement in response to the ratio of the average data transmission rate of the terminal device in the second cell to the average data transmission rate in the first cell being less than a first rate change threshold and/or the difference between the average data transmission rate of the terminal device in the first cell and the average data transmission rate in the second cell being greater than a second rate change threshold;
wherein the first rate change threshold and the second rate change threshold are both greater than zero.
6. The cell switching method according to claim 5, wherein the determining whether the data transmission rate of the terminal device in the second cell satisfies the data transmission rate requirement further comprises:
and determining that the data transmission rate of the terminal equipment in the second cell meets the data transmission rate requirement in response to the ratio of the average data transmission rate of the terminal equipment in the second cell to the average data transmission rate in the first cell being greater than or equal to a first rate change threshold and the difference between the average data transmission rate of the terminal equipment in the first cell and the average data transmission rate in the second cell being less than or equal to a second rate change threshold.
7. The cell switching method according to any of claims 1 to 4, wherein the switching to the first cell comprises:
sending a measurement report to a network device, the measurement report requesting handover to the first cell.
8. A cell switching apparatus, comprising:
a first determining module, configured to determine, in response to a terminal device being handed over from a first cell to a second cell, whether a data transmission rate of the terminal device in the second cell meets a data transmission rate requirement;
a second determining module, configured to determine whether the signal quality of the first cell at the current time meets a signal quality degradation condition in response to that the data transmission rate of the terminal device in the second cell does not meet the data transmission rate requirement;
a handover module configured to handover to the first cell in response to the signal quality not satisfying a signal quality degradation condition.
9. An electronic device, comprising: memory and processing; wherein:
the memory is used for storing program instructions;
the processor is configured to invoke program instructions in the memory to perform the cell handover method of any one of claims 1 to 7.
10. A computer readable storage medium having computer program instructions stored therein which, when executed, implement the cell handover method of any one of claims 1 to 7.
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