CN111770540B - Cell switching method and device and electronic equipment - Google Patents
Cell switching method and device and electronic equipment Download PDFInfo
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- CN111770540B CN111770540B CN202010628884.0A CN202010628884A CN111770540B CN 111770540 B CN111770540 B CN 111770540B CN 202010628884 A CN202010628884 A CN 202010628884A CN 111770540 B CN111770540 B CN 111770540B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
Abstract
The application discloses a cell switching method, a cell switching device and electronic equipment, which belong to the technical field of communication, wherein the method comprises the following steps: monitoring a network quality parameter of a first server cell providing network under a condition of being in a connection state with the first server cell; determining whether the first serving cell meets a condition to be switched according to the network quality parameter; and switching to a second serving cell under the condition that the first serving cell meets the switched condition. On one hand, the cell switching method disclosed by the application can objectively and comprehensively judge whether the first serving cell meets the switched condition or not by the cell switching device according to the network quality parameters of the network, and can improve the accuracy of the judgment result. On the other hand, when the first serving cell is determined to meet the switched condition, the cell switching device actively triggers the serving cell switching, so that the controllability and the flexibility of the serving cell switching can be improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a cell switching method, a cell switching device and electronic equipment.
Background
In a Long Term Evolution (LTE) network, when an electronic device is in a Radio Resource Control (RRC) connected state, a cell handover requirement often exists. Currently, when the electronic device performs the serving cell handover, the handover is controlled by the network. The network judges whether the electronic equipment meets the service cell switching condition according to the Reference Signal Receiving Power (RSRP) and the Reference Signal Receiving Quality (RSRQ) reported by the electronic equipment, and performs service cell switching for the electronic equipment when the electronic equipment meets the service cell switching condition.
Actually, RSRP and RSRQ only reflect the downlink quality of the current environment of the electronic device, and do not reflect the data transmission status of the electronic device, such as: under the condition that the RSRP and the RSRQ do not satisfy the serving cell switching condition, the data transmission state of the electronic device may not satisfy the service requirement, which may cause the electronic device to stay in the current serving cell with poor data service all the time, and affect the user experience. Therefore, the existing mode of judging whether the serving cell currently connected with the electronic equipment meets the switched condition only according to the RSRP and the RSRQ has poor reliability of the judgment result.
Disclosure of Invention
The embodiment of the application aims to provide a cell switching method, which can solve the problem that in the prior art, the reliability of a judgment result is poor in a mode of judging whether a serving cell currently connected with an electronic device meets a switched condition only according to RSRP and RSRQ.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present application provides a cell handover method, where the method includes: monitoring a network quality parameter of a network provided by a first serving cell while in a connected state with the first serving cell, wherein the network quality parameter comprises at least one of: an uplink parameter and a downlink parameter; wherein the uplink parameters include: an uplink buffer data volume and an uplink throughput; the downlink parameters include: downlink bit error rate and downlink throughput; determining whether the first serving cell meets a condition to be switched according to the network quality parameter; and switching to a second serving cell under the condition that the first serving cell meets the switched condition, wherein the second serving cell is one of the neighbor cells under test.
In a second aspect, an embodiment of the present application provides a cell switching apparatus, where the apparatus includes: a monitoring module, configured to monitor a network quality parameter of a network provided by a first serving cell when the first serving cell is in a connected state, where the network quality parameter includes at least one of: an uplink parameter and a downlink parameter; wherein the uplink parameters include: an uplink buffer data volume and an uplink throughput; the downlink parameters include: downlink bit error rate and downlink throughput; a first determining module, configured to determine whether the first serving cell meets a condition to be handed over according to the network quality parameter; and the switching module is used for switching to a second service cell under the condition that the first service cell meets the switched condition, wherein the second service cell is one of the neighbor cells under test.
In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and when executed by the processor, the program or instructions implement the steps of the method according to the first aspect.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the method according to the first aspect.
In a fifth aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method according to the first aspect.
In the embodiment of the application, the network quality parameter provided by the first serving cell to the network is monitored under the condition that the first serving cell is in a connection state; determining whether the first serving cell meets a switched condition according to the network quality parameter; on one hand, whether the first serving cell meets the switched condition can be objectively and comprehensively judged by the cell switching device according to the network quality parameters of the network, and the accuracy of the judgment result can be improved. On the other hand, when the first serving cell is determined to meet the switched condition, the cell switching device actively triggers the serving cell switching, so that the controllability and the flexibility of the serving cell switching can be improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a flowchart illustrating steps of a cell handover method according to an embodiment of the present application;
FIG. 2 is a flowchart illustrating a procedure for handing over to a second serving cell according to an embodiment of the present application;
fig. 3 is a flowchart illustrating a procedure of handover to a second serving cell according to another embodiment of the present application;
fig. 4 is a block diagram showing a configuration of a cell switching apparatus according to an embodiment of the present application;
fig. 5 is a block diagram showing a configuration of an electronic device according to an embodiment of the present application;
fig. 6 is a schematic diagram showing a hardware configuration of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The cell handover method provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Referring to fig. 1, a flowchart illustrating steps of a cell handover method according to an embodiment of the present application is shown.
The cell switching method of the embodiment of the application comprises the following steps:
step 101: monitoring a network quality parameter of a first serving cell providing network while in a connected state with the first serving cell.
Wherein the network quality parameter comprises at least one of: uplink parameters and downlink parameters, the uplink parameters may include but are not limited to: an uplink buffer data volume and an uplink throughput; downlink parameters may include, but are not limited to: downlink error rate and downlink throughput.
The uplink buffer data volume and the uplink throughput of the network can objectively reflect the uplink quality of the network, and the downlink error rate and the downlink throughput of the network can objectively reflect the downlink quality of the network. Therefore, the network quality provided by the first service cell for the cell switching device can be objectively and comprehensively reflected by the network quality parameter.
Step 102: and determining whether the first service cell meets the switched condition or not according to the network quality parameter.
In a specific implementation process, whether the first serving cell meets the condition to be switched may be determined according to at least one of the uplink parameter and the downlink parameter.
One way to optionally determine whether the first serving cell meets the condition to be handed over depending on the uplink parameters is to:
and under the condition that the uplink cache data volume is continuously higher than the preset cache data volume and the uplink throughput is continuously smaller than the first preset throughput within the preset time length, determining that the first service cell meets the switched condition.
Specific values of the preset duration, the preset cache data amount, and the first preset throughput may be set by a person skilled in the art or a user according to actual needs, which is not specifically limited in the embodiment of the present application.
One way to optionally determine whether the first serving cell meets the condition to be handed over depending on the downlink parameters is to:
and under the conditions that the average value of the downlink error rates in the preset duration is greater than the preset error rate and the downlink throughput is continuously less than a second preset throughput, determining that the first service cell meets the switched condition.
The specific values of the preset error rate and the second preset throughput may be set by a person skilled in the art or a user according to actual requirements, which is not limited in this embodiment of the application.
Another way to optionally determine whether the first serving cell meets the condition to be handed over according to the uplink parameter and the downlink parameter at the same time is:
and under the conditions that the uplink cache data volume is continuously higher than the preset cache data volume and the uplink throughput is continuously smaller than the first preset throughput, the average value of the downlink error rates is larger than the preset error rate and the downlink throughput is continuously smaller than the second preset throughput within the preset time, determining that the first service cell meets the switched condition.
The mode of determining whether the first service cell meets the switching condition or not according to the uplink parameter and the downlink parameter simultaneously has more rigorous judgment conditions, can avoid frequent switching of the service cells, and can reduce the operation load when the terminal switches the service cells.
In a specific implementation, a person skilled in the art may use any one of the above listed manners as a method for determining whether the first serving cell satisfies the condition to be handed over. The three modes can be preset in the system for the user to set according to requirements in the actual use process.
Step 103: and under the condition that the first serving cell meets the switched condition, switching to a second serving cell.
The second serving cell is one of the neighboring cells under test. The neighbor cells under test are serving cells for the cell switching device to switch over, and the number of the neighbor cells under test can be one or more. When the second serving cell is selected from the plurality of neighbor cells under test, the selection can be performed according to parameters such as signal strength, RSRP, RSRQ, and the like of each second serving cell.
In the cell switching method provided by the embodiment of the application, a network quality parameter of a network provided by a first serving cell is monitored under the condition that the first serving cell is in a connected state; determining whether the first serving cell meets a switched condition according to the network quality parameter; on one hand, whether the first serving cell meets the switched condition can be objectively and comprehensively judged by the cell switching device according to the network quality parameters of the network, and the accuracy of the judgment result can be improved. On the other hand, when the first serving cell is determined to meet the switched condition, the cell switching device actively triggers the serving cell switching, so that the controllability and the flexibility of the serving cell switching can be improved.
Referring to fig. 2, a flowchart illustrating steps of handover to a second serving cell according to an embodiment of the present application is shown. In an optional embodiment, the method shown in fig. 2 may be referred to when the first serving cell meets the condition to be switched, and the switching to the second serving cell specifically includes the following steps:
step 201: and under the condition that the first serving cell meets the switched condition, adding the first serving cell identification into the record table.
And after the first service cell identifier is added into the record table, the first service cell cannot be used as a service cell for switching within a preset time length. The identity of the first serving cell may be a physical cell identity or a globally unique identity of the first serving cell. Moreover, the frequency point of the first serving cell may be recorded in the record table.
And after the first serving cell is judged to meet the switched condition, resetting a timer corresponding to the first serving cell for timing again.
Step 202: and determining each tested adjacent cell which does not meet the switched condition according to the record table.
The record table is added with the identification of each service cell meeting the switched condition, each measured adjacent cell corresponds to one service cell identification, each measured adjacent cell which is not in the record table is screened out by referring to the record table, and the screened measured adjacent cells are all the measured adjacent cells which do not meet the switched condition.
Step 203: and selecting the second serving cell with the strongest signal strength from the neighboring cells under test which do not meet the requirements of the switching regulation.
The serving cells in the log are not available as serving cells for handover, so in this step a second serving cell is selected from the serving cells under test that are not in the log.
In the specific implementation process, the serving cell with the strongest signal is not limited to be selected as the second serving cell, and any serving cell with the signal strength higher than the preset signal strength can be selected as the second serving cell from the neighbor cells which are measured and are not in the record table.
Step 204: reference signal related parameters of the second serving cell are monitored.
Wherein the reference signal related parameter comprises at least one of: RSRP is reference signal received power, and RSRQ is reference signal received quality. The specific setting of the reference signal related parameter can be flexibly set by those skilled in the art according to actual requirements, and is not particularly limited in the embodiment of the present application.
Step 205: and switching to the second serving cell under the condition that the reference signal related parameter of the second serving cell is greater than the first preset parameter threshold value.
When the first service cell is switched to the second service cell, the cell switching device actively triggers the radio link failure and initiates an RRC connection reestablishment request to the second service cell, and the second service cell completes the service cell switching after responding to the RRC connection reestablishment request. After switching to the second serving cell, residing in the second serving cell and continuing the data service on the second serving cell.
And returning to execute the step S101 when the reference signal related parameter of the second serving cell is less than or equal to the first preset parameter threshold.
The specific value of the first preset parameter threshold can be set by a person skilled in the art according to actual needs, and is not particularly limited in the embodiment of the present application.
The mode of optionally selecting the second serving cell for switching selects the serving cell with the strongest signal strength as the second serving cell, so that the probability of successful switching of the serving cells can be improved.
In an alternative embodiment, the following operations may also be performed after step 205:
determining whether a timer corresponding to the first serving cell is overtime; under the condition that a timer corresponding to the first service cell is overtime, deleting the identifier of the first service cell from the record table;
the timer corresponding to the first serving cell starts to time when the first serving cell meets the switched condition; when the time length recorded by the timer exceeds the preset time length, determining that the timer is overtime; otherwise, the timer is determined not to be timed out. The preset time length can be flexibly set by a person skilled in the art according to actual requirements. And deleting the identifier of the first serving cell from the record table, wherein the first serving cell can be used as a subsequent serving cell for switching.
Determining whether the reference signal related parameter of the second serving cell is greater than a second preset parameter threshold value or not under the condition that the timer corresponding to the first serving cell is not overtime; deleting the identifier of the first serving cell from the record table under the condition that the reference signal related parameter of the second serving cell is less than or equal to a second preset parameter threshold; and under the condition that the reference signal related parameter of the second serving cell is larger than a second preset parameter threshold value, forbidding reporting the network measurement report of the first serving cell.
The processing mode can effectively avoid ping-pong effect caused by frequent switching back and forth between the first serving cell and the second serving cell.
Referring to fig. 3, a flowchart illustrating a procedure of handover to a second serving cell according to another embodiment of the present application is shown. In an optional embodiment, the method shown in fig. 3 may be referred to when the first serving cell meets the condition to be switched, and the switching to the second serving cell specifically includes the following steps:
step 301: and under the condition that the first serving cell meets the switched condition, according to a preset time interval, carrying out descending adjustment on the measured reference signal related parameters of the first serving cell through a first test amount bias.
Under the condition that the first serving cell meets the switched condition, the frequency point, the physical cell identifier or the global unique identifier of the first serving cell can be recorded.
The first test amount offset is increased by a preset step length according to a preset time interval, and an upper limit value of the first test amount offset is preset in the system, namely the first test amount offset is increased by the preset step length to the upper limit value and then is not increased continuously. The first test offset may be denoted as Oca, the step size may be denoted as step, the initial value of the first test offset is 0, and the increment of the first test offset may be denoted by Oca + step 1.
And when the reference signal related parameter of the first serving cell is subjected to decrement adjustment through the first test amount offset, subtracting the first test amount offset from the reference signal related parameter of the first serving cell. For example: if the reference signal related parameter is the RSRP measurement value Ma, then the RSRP of the first serving cell may be decremented by Ma-Oca.
The preset time interval can be set by those skilled in the art according to actual needs, and is not particularly limited in the embodiments of the present application.
Step 302: and reporting the network measurement report of the first service cell according to a preset time interval.
The network measurement report carries the adjusted reference signal related parameters.
After the first service cell is determined to meet the switched condition, the reference signal related parameter of the first service cell is reported after being decreased progressively, and when the reference signal related parameter of the first service cell is decreased progressively to a certain degree, the network can be triggered to send the configuration information of the adjacent cell for switching.
Step 303: and according to a preset time interval, carrying out incremental adjustment on the reference signal related parameters of each adjacent cell issued by the network through the second test amount bias.
The second balance offset may be represented as Ocb ', the step size may be represented as step2, the initial value of the second balance offset Ocb' is 0, and the increment of the second balance offset may be represented by Ocb '═ Ocb' + step 2.
And when the reference signal related parameters of each adjacent cell are subjected to descending adjustment through the second test amount bias, the reference signal related parameters of the adjacent cells are added with the second test amount bias. For example: if the reference signal related parameter is the RSRP measurement value Mb, then the RSRP of the neighbor cell may be incremented by Mb '+ Ocb'. It should be noted that the neighboring cell represents a class of serving cell, and there may be multiple serving cells, and a certain non-specific serving cell, and the second test amount bias of each serving cell may be the same or different.
And executing step 303 when detecting that the network has issued the neighboring cell configuration information for handover, and returning to step 301 to continue to adjust and report the reference signal related parameter of the first serving cell when detecting that the network has not issued the neighboring cell configuration information for handover.
Step 304: and when the reference signal related parameters of the second serving cell in each adjacent cell meet the switching condition, switching from the first serving cell to the second serving cell.
When the first service cell is determined to meet the switched condition, the reference signal related parameters of the first service cell are decreased progressively through first test amount bias, the reported reference signal related parameters of the adjacent cells which can be switched are increased progressively through second test amount bias, and when the reference signal related parameters of the first service cell are decreased progressively until the switched condition is met and the reference signal related parameters of the second service cell in the adjacent cells are increased progressively to meet the switching condition, switching from the first service cell to the second service cell is triggered. After switching to the second serving cell, residing in the second serving cell and continuing the data service on the second serving cell.
After the handover to the second serving cell, the relevant parameters of the reference signal of the first serving cell are continuously detected, and the decrement operation of Ma-Oca is still performed on the detection result, so that the ping-pong effect caused by frequent back-and-forth handover between the first serving cell and the second serving cell can be effectively avoided.
In an optional embodiment, after the step 304, a change rule of the first test value offset may be further adjusted according to the reference signal related parameter of the second serving cell and the timer value corresponding to the first serving cell, so as to adjust a change trend of the reference signal related parameter of the first serving cell through the adjusted first test value offset.
In an alternative embodiment, the first test offset may be adjusted as follows:
monitoring a reference signal related parameter of a second serving cell after switching to the second serving cell; judging whether the reference signal related parameter of the second serving cell is greater than a third preset parameter threshold value; if not, resetting the first test rating deviation value, and setting the first test rating deviation value as 0; if yes, judging whether a timer corresponding to the first service cell is overtime;
if the time is out, the first test amount offset is adjusted to decrease by a preset step length, and the adjusted first test amount offset can be represented as: using the adjusted first test offset to incrementally adjust the reference signal related parameter of the first serving cell and report the adjusted reference signal related parameter; if not, the first test amount bias before adjustment is still adopted to carry out descending adjustment on the reference signal related parameters of the first service cell and report the parameters.
The mode of optionally managing the first serving cell by adjusting the first test amount bias can gradually recover the possibility that the first serving cell is selected as the cell for handover by gradually increasing and adjusting the reference signal related parameters of the first serving cell and reporting the adjusted reference signal related parameters after the second serving cell is stably handed over, thereby reasonably utilizing the network resources of each serving cell.
It should be noted that, in the cell handover method provided in the embodiment of the present application, the execution subject may be a cell handover apparatus, or a control module in the cell handover apparatus for executing the cell handover method. The cell switching apparatus provided in the embodiment of the present application is described with reference to a method for performing cell switching by a cell switching apparatus as an example.
Fig. 4 is a block diagram of a cell switching apparatus for implementing an embodiment of the present application. The cell switching apparatus shown in fig. 4 is used to implement the cell switching method shown in fig. 1 to 3.
The cell switching apparatus 400 of the embodiment of the present application includes:
a monitoring module 401, configured to monitor a network quality parameter of a network provided by a first serving cell when the first serving cell is in a connected state, where the network quality parameter includes at least one of: an uplink parameter and a downlink parameter; wherein the uplink parameters include: an uplink buffer data volume and an uplink throughput; the downlink parameters include: downlink bit error rate and downlink throughput;
A first determining module 402, configured to determine whether the first serving cell meets a condition to be handed over according to the network quality parameter;
a switching module 403, configured to switch to a second serving cell when the first serving cell meets a switched condition, where the second serving cell is one of the neighboring cells under test.
Optionally, the first determining module includes:
the first submodule is used for determining that the first serving cell meets the switched condition under the condition that the uplink cache data volume is continuously higher than the preset cache data volume and the uplink throughput is continuously smaller than a first preset throughput within a preset time length; alternatively, the first and second liquid crystal display panels may be,
the second submodule is used for determining that the first service cell meets the switched condition under the condition that the average value of the downlink bit error rates is greater than the preset bit error rate and the downlink throughput is continuously smaller than a second preset throughput within a preset time length; alternatively, the first and second electrodes may be,
and the third sub-module is used for determining that the first service cell meets the switched condition under the condition that the uplink cache data volume is continuously higher than the preset cache data volume and the uplink throughput is continuously smaller than the first preset throughput, the average value of the downlink error rates is larger than the preset error rate and the downlink throughput is continuously smaller than the second preset throughput within the preset time length.
Optionally, the switching module includes:
the adding submodule is used for adding the first serving cell identifier into a record table under the condition that the first serving cell meets the switched condition;
the adjacent cell determining submodule is used for determining each tested adjacent cell which does not meet the switched condition according to the record table;
a selection submodule, configured to select a second serving cell with the strongest signal strength from the neighboring cells under test;
a monitoring sub-module, configured to monitor a reference signal related parameter of the second serving cell, where the reference signal related parameter includes at least one of: reference signal received power, reference signal received quality;
a first handover submodule, configured to handover to the second serving cell when a reference signal related parameter of the second serving cell is greater than a first preset parameter threshold.
Optionally, the apparatus further comprises:
a second determining module, configured to determine whether a timer corresponding to the first serving cell is overtime after the handover from the handover submodule to the second serving cell, where the timer corresponding to the first serving cell starts to time when the first serving cell meets a handover condition;
A first deleting module, configured to delete the identifier of the first serving cell from the record table when a timer corresponding to the first serving cell is overtime;
a third determining module, configured to determine whether a reference signal related parameter of the second serving cell is greater than a second preset parameter threshold value when the timer corresponding to the first serving cell is not timed out;
a second deleting module, configured to delete the identifier of the first serving cell from the record table when the reference signal related parameter of the second serving cell is less than or equal to the second preset parameter threshold;
and a reporting control module, configured to prohibit reporting of the network measurement report of the first serving cell when the reference signal related parameter of the second serving cell is greater than the second preset parameter threshold.
Optionally, the switching module includes:
a first adjusting submodule, configured to perform decremental adjustment on the measured reference signal related parameter of the first serving cell through a first test amount offset according to a preset time interval when the first serving cell meets a switched condition; the first test amount offset is increased progressively in a preset step length according to a preset time interval;
A reporting sub-module, configured to report a network measurement report of the first serving cell according to the preset time interval, where the network measurement report carries the adjusted parameters related to the reference signal;
the second adjusting submodule is used for carrying out incremental adjustment on the reference signal related parameters of each adjacent cell issued by the network through second test amount bias according to the preset time interval; the second test amount offset is increased progressively in a preset step length according to a preset time interval;
and a second switching sub-module, configured to switch from the first serving cell to a second serving cell in the neighboring cells when a reference signal related parameter of the second serving cell meets a switching condition.
Optionally, the apparatus further comprises:
a test amount bias adjusting module, configured to adjust a change rule of the first test amount bias according to the reference signal related parameter of the second serving cell and a timer value corresponding to the first serving cell after the second handover sub-module is handed over from the first serving cell to the second serving cell, so as to adjust a change trend of the reference signal related parameter of the first serving cell through the adjusted first test amount bias.
The cell switching apparatus shown in fig. 4 in this embodiment may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal. The device can be mobile electronic equipment or non-mobile electronic equipment. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine or a self-service machine, and the like, and the embodiments of the present application are not particularly limited.
The cell switching apparatus shown in fig. 4 in the embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.
The cell switching device shown in fig. 4 provided in the embodiment of the present application can implement each process implemented by the method embodiments of fig. 1 to fig. 3, and is not described herein again to avoid repetition.
The cell switching device provided by the embodiment of the application monitors the network quality parameter of the network provided by the first serving cell under the condition that the first serving cell is in a connected state; determining whether the first serving cell meets a switched condition according to the network quality parameter; on one hand, whether the first serving cell meets the switched condition can be objectively and comprehensively judged by the cell switching device according to the network quality parameters of the network, and the accuracy of the judgment result can be improved. On the other hand, when the first serving cell is determined to meet the switched condition, the cell switching device actively triggers the serving cell switching, so that the controllability and the flexibility of the serving cell switching can be improved.
Optionally, as shown in fig. 5, an electronic device 500 is further provided in this embodiment of the present application, and includes a processor 501, a memory 502, and a program or an instruction stored in the memory 502 and executable on the processor 501, where the program or the instruction is executed by the processor 501 to implement each process of the cell handover method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and the non-mobile electronic devices described above.
Fig. 6 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application.
The electronic device 600 includes, but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, a processor 610, and the like.
Those skilled in the art will appreciate that the electronic device 600 may further comprise a power source (e.g., a battery) for supplying power to the various components, and the power source may be logically connected to the processor 610 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The electronic device structure shown in fig. 6 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is omitted here.
The processor 610 is configured to monitor a network quality parameter of a network provided by a first serving cell when the first serving cell is in a connected state; the network quality parameter comprises at least one of: an uplink parameter and a downlink parameter; wherein the uplink parameters include: an uplink buffer data volume and an uplink throughput; the downlink parameters include: a downlink error rate and a downlink throughput; determining whether the first serving cell meets a condition to be switched according to the network quality parameter;
A network module 602, configured to switch a second serving cell when the first serving cell meets a switched condition, where the second serving cell is one of the neighboring cells under test.
The electronic device provided by the embodiment of the application monitors the network quality parameter of the network provided by the first serving cell under the condition that the electronic device is in a connection state with the first serving cell; determining whether the first serving cell meets a switched condition according to the network quality parameter; on one hand, whether the first serving cell meets the switched condition can be objectively and comprehensively judged by the electronic equipment according to the network quality parameters of the network, and the accuracy of the judgment result can be improved. On the other hand, when the first serving cell is determined to meet the switched condition, the electronic device actively triggers the serving cell to be switched, so that the controllability and flexibility of the serving cell switching can be improved.
Optionally, the processor 610, when determining whether the first serving cell meets the condition to be handed over according to the network quality parameter, is specifically configured to:
determining that the first serving cell meets a switched condition under the condition that the uplink cache data volume is continuously higher than a preset cache data volume and the uplink throughput is continuously smaller than a first preset throughput within a preset time length; alternatively, the first and second electrodes may be,
Determining that the first serving cell meets a switched condition under the condition that the average value of the downlink bit error rates in a preset time length is greater than a preset bit error rate and the downlink throughput is continuously less than a second preset throughput; alternatively, the first and second electrodes may be,
and under the conditions that the uplink cache data volume is continuously higher than the preset cache data volume and the uplink throughput is continuously smaller than a first preset throughput within a preset time length, the average value of the downlink error rates is larger than a preset error rate and the downlink throughput is continuously smaller than a second preset throughput, determining that the first service cell meets the switched condition.
Optionally, when the first serving cell meets the condition to be switched, the network module 602 is specifically configured to:
under the condition that the first serving cell meets the switched condition, adding the first serving cell identifier into a record table;
determining each tested adjacent cell which does not meet the switched condition according to the record table;
selecting a second serving cell with the strongest signal strength from all the neighbor cells under test;
monitoring reference signal related parameters of the second serving cell, wherein the reference signal related parameters include at least one of: reference signal received power, reference signal received quality;
And switching to the second serving cell when the reference signal related parameter of the second serving cell is greater than a first preset parameter threshold.
Optionally, the processor 610 is further configured to determine whether a timer corresponding to the first serving cell expires after the network module 602 switches to the second serving cell, where the timer corresponding to the first serving cell starts to count when the first serving cell meets a condition to be switched; under the condition that a timer corresponding to the first serving cell is overtime, deleting the identifier of the first serving cell from the record table; determining whether a reference signal related parameter of the second serving cell is greater than a second preset parameter threshold value or not under the condition that a timer corresponding to the first serving cell is not overtime; deleting the identifier of the first serving cell from the record table under the condition that the reference signal related parameter of the second serving cell is less than or equal to the second preset parameter threshold; and under the condition that the reference signal related parameter of the second serving cell is greater than the second preset parameter threshold, prohibiting reporting of the network measurement report of the first serving cell.
Optionally, when the first serving cell meets the condition to be switched, the network module 602 is specifically configured to:
when the first serving cell meets the switched condition, according to a preset time interval, carrying out descending adjustment on the measured reference signal related parameters of the first serving cell through a first test amount bias; the first test amount offset is increased progressively in a preset step length according to a preset time interval;
reporting a network measurement report of the first serving cell according to the preset time interval, wherein the network measurement report carries the adjusted related parameters of the reference signal;
according to the preset time interval, carrying out incremental adjustment on the reference signal related parameters of each adjacent cell issued by the network through second test amount bias; the second test amount offset is increased progressively in a preset step length according to a preset time interval;
and when the reference signal related parameter of the second serving cell in each neighboring cell meets a switching condition, switching from the first serving cell to the second serving cell.
Optionally, the processor 610 is further configured to, after the network module 602 is handed over from the first serving cell to the second serving cell, adjust a change rule of the first test amount offset according to the reference signal related parameter of the second serving cell and a timer value corresponding to the first serving cell, so as to adjust a change trend of the reference signal related parameter of the first serving cell through the adjusted first test amount offset.
It is to be understood that, in the embodiment of the present application, the input Unit 604 may include a Graphics Processing Unit (GPU) 6041 and a microphone 6042, and the Graphics processor 6041 processes image data of a still picture or a video obtained by an image capturing apparatus (such as a camera) in a video capture mode or an image capture mode. The display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 607 includes a touch panel 6071 and other input devices 6072. A touch panel 6071, also referred to as a touch screen. The touch panel 6071 may include two parts of a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein. The memory 609 may be used to store software programs as well as various data including, but not limited to, application programs and an operating system. The processor 610 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 610.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the cell handover method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement each process of the cell handover method embodiment, and can achieve the same technical effect, and in order to avoid repetition, the description is omitted here.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A method of cell handover, the method comprising:
monitoring a network quality parameter of a network provided by a first serving cell while in a connected state with the first serving cell, wherein the network quality parameter comprises at least one of: uplink parameters and downlink parameters; wherein the uplink parameters include: an uplink buffer data volume and an uplink throughput; the downlink parameters include: downlink bit error rate and downlink throughput;
determining whether the first serving cell meets a condition to be switched according to the network quality parameter;
under the condition that the first serving cell meets the switched condition, switching to a second serving cell, wherein the second serving cell is one of the neighbor cells under test;
wherein the step of switching to a second serving cell when the first serving cell meets a condition to be switched includes:
under the condition that the first serving cell meets the switched condition, adding the first serving cell identifier into a record table;
determining each tested adjacent cell which does not meet the switched condition according to the record table;
selecting a second serving cell with the strongest signal strength from all the neighbor cells under test;
Monitoring reference signal related parameters of the second serving cell, wherein the reference signal related parameters include at least one of: reference signal received power, reference signal received quality;
and switching to the second serving cell when the reference signal related parameter of the second serving cell is greater than a first preset parameter threshold.
2. The method of claim 1, wherein the step of determining whether the first serving cell satisfies the condition to be handed over according to the network quality parameter comprises:
determining that the first serving cell meets a switched condition under the condition that the uplink cache data volume is continuously higher than a preset cache data volume and the uplink throughput is continuously smaller than a first preset throughput within a preset time length; alternatively, the first and second electrodes may be,
determining that the first serving cell meets a switched condition under the condition that the average value of the downlink bit error rates in a preset time length is greater than a preset bit error rate and the downlink throughput is continuously less than a second preset throughput; alternatively, the first and second electrodes may be,
and under the conditions that the uplink cache data volume is continuously higher than the preset cache data volume and the uplink throughput is continuously smaller than a first preset throughput within a preset time length, the average value of the downlink error rates is larger than a preset error rate and the downlink throughput is continuously smaller than a second preset throughput, determining that the first service cell meets the switched condition.
3. The method of claim 1, wherein after the step of switching to the second serving cell, the method further comprises:
determining whether a timer corresponding to the first serving cell is overtime, wherein the timer corresponding to the first serving cell starts to time when the first serving cell meets a condition to be switched;
under the condition that a timer corresponding to the first serving cell is overtime, deleting the identifier of the first serving cell from the record table;
determining whether a reference signal related parameter of the second serving cell is greater than a second preset parameter threshold value or not under the condition that a timer corresponding to the first serving cell is not overtime;
deleting the identifier of the first serving cell from the record table under the condition that the reference signal related parameter of the second serving cell is less than or equal to the second preset parameter threshold;
and under the condition that the reference signal related parameter of the second serving cell is greater than the second preset parameter threshold, prohibiting reporting of the network measurement report of the first serving cell.
4. The method of claim 1, wherein the step of switching to a second serving cell in case that the first serving cell satisfies the condition to be switched comprises:
Under the condition that the first serving cell meets the switched condition, according to a preset time interval, carrying out decreasing adjustment on the measured reference signal related parameter of the first serving cell through a first test amount bias; the first test rate offset is increased by a preset step length according to a preset time interval;
reporting a network measurement report of the first serving cell according to the preset time interval, wherein the network measurement report carries the adjusted related parameters of the reference signal;
according to the preset time interval, carrying out incremental adjustment on the reference signal related parameters of each adjacent cell issued by the network through second test amount bias; the second test amount offset is increased progressively in a preset step length according to a preset time interval;
and when the reference signal related parameter of the second serving cell in each neighboring cell meets a switching condition, switching from the first serving cell to the second serving cell.
5. An apparatus for cell switching, the apparatus comprising:
a monitoring module, configured to monitor a network quality parameter of a network provided by a first serving cell when the first serving cell is in a connected state, where the network quality parameter includes at least one of: an uplink parameter and a downlink parameter; wherein the uplink parameters include: an uplink buffer data volume and an uplink throughput; the downlink parameters include: downlink bit error rate and downlink throughput;
A first determining module, configured to determine whether the first serving cell satisfies a condition to be handed over according to the network quality parameter;
a switching module, configured to switch to a second serving cell when the first serving cell meets a switched condition, where the second serving cell is one of neighboring cells under test;
the switching module includes:
the adding submodule is used for adding the first serving cell identifier into a record table under the condition that the first serving cell meets the switched condition;
the adjacent cell determining submodule is used for determining each tested adjacent cell which does not meet the switched condition according to the record table;
a selection submodule, configured to select a second serving cell with the strongest signal strength from the neighboring cells under test;
a monitoring sub-module, configured to monitor a reference signal related parameter of the second serving cell, where the reference signal related parameter includes at least one of: reference signal received power, reference signal received quality;
a first handover submodule, configured to handover to the second serving cell when a reference signal related parameter of the second serving cell is greater than a first preset parameter threshold.
6. The apparatus of claim 5, wherein the first determining module comprises:
the first submodule is used for determining that the first serving cell meets the switched condition under the condition that the uplink cache data volume is continuously higher than the preset cache data volume and the uplink throughput is continuously smaller than a first preset throughput within a preset time length; alternatively, the first and second liquid crystal display panels may be,
the second submodule is used for determining that the first service cell meets the switched condition under the condition that the average value of the downlink bit error rates is greater than the preset bit error rate and the downlink throughput is continuously smaller than a second preset throughput within a preset time length; alternatively, the first and second liquid crystal display panels may be,
and the third sub-module is used for determining that the first service cell meets the switched condition under the condition that the uplink cache data volume is continuously higher than the preset cache data volume and the uplink throughput is continuously smaller than the first preset throughput, the average value of the downlink error rates is larger than the preset error rate and the downlink throughput is continuously smaller than the second preset throughput within the preset time length.
7. The apparatus of claim 5, further comprising:
a second determining module, configured to determine whether a timer corresponding to the first serving cell is overtime after the handover from the handover submodule to the second serving cell, where the timer corresponding to the first serving cell starts to time when the first serving cell meets a handover condition;
A first deleting module, configured to delete the identifier of the first serving cell from the record table when a timer corresponding to the first serving cell is overtime;
a third determining module, configured to determine whether a reference signal related parameter of the second serving cell is greater than a second preset parameter threshold value when the timer corresponding to the first serving cell is not timed out;
a second deleting module, configured to delete the identifier of the first serving cell from the record table when the reference signal related parameter of the second serving cell is less than or equal to the second preset parameter threshold;
and a reporting control module, configured to prohibit reporting of the network measurement report of the first serving cell when the reference signal related parameter of the second serving cell is greater than the second preset parameter threshold.
8. An electronic device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, implement the steps of the cell handover method of any one of claims 1 to 4.
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