CN114501573A - Cell switching method, device, equipment and storage medium - Google Patents
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Abstract
The disclosure relates to a cell switching method, a cell switching device and a storage medium, and is applied to the technical field of wireless communication. The method comprises the following steps: after the user equipment is accessed to an initial first network cell, detecting whether an uplink data transmission fault occurs, wherein the fault reason of the data transmission fault is that uplink resources are insufficient due to abnormal uplink resource scheduling; and switching to a target first network cell after the uplink data transmission fault is determined to occur. According to the method and the device, the uplink data sending fault of the user equipment is timely identified to be the condition that the uplink resource is insufficient due to abnormal uplink resource scheduling, and the uplink data sending fault is switched to another cell in the same network, so that the phenomena of blocking, breaking, incapability of accessing a server and the like are prevented, and the user experience is improved.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a cell switching method, apparatus, device, and storage medium.
Background
In the wireless communication technology, a User Equipment (UE) may apply for an uplink resource to a network device, the network device correspondingly allocates the uplink resource to the UE, and the UE sends uplink data to the network device using the uplink resource to complete uplink data transmission.
The UE may apply for the radio resource to the network side through a Buffer Status Report (BSR), a Status Report (SR), and a random access. Generally, in the process of applying for resources by the UE, the BSR mode is preferentially adopted, if the BSR cannot be sent, the SR mode is adopted, and finally, the random access mode is considered. Whichever way resources are applied, the resources allocated by the network device may not be sufficient for the UE to transmit all the data to be transmitted.
Therefore, how to solve the uplink data transmission failure caused by insufficient uplink resources is an urgent problem to be solved.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a cell handover method, apparatus, and storage medium.
According to a first aspect of the embodiments of the present disclosure, a cell handover method is provided, which is applied to a user equipment, and the method includes:
after the user equipment is accessed to an initial first network cell, detecting whether an uplink data transmission fault occurs, wherein the fault reason of the data transmission fault is that uplink resources are insufficient due to abnormal uplink resource scheduling;
and switching to a target first network cell after the uplink data transmission fault is determined to occur, wherein the network systems of the initial first network cell and the target network cell are the same.
In an exemplary embodiment, the uplink data transmission failure includes: when the user equipment is in a connected state, at least M time domain units meeting set conditions exist in N continuous time domain units, the set conditions comprise first conditions, and the first conditions comprise that uplink resources configured by a corresponding network on the time domain units are not enough to transmit uplink data to be transmitted; wherein M is greater than 0 and less than or equal to N.
In an exemplary embodiment, the setting condition further includes a second condition, and the second condition includes: and the user equipment continuously sends the uplink resource request on the corresponding time domain unit.
In an exemplary embodiment, the determining that the uplink data transmission failure occurs, and then switching to the target first network cell includes:
and after the uplink data transmission fault is determined to occur, setting the initial first network cell as a non-accessible cell when the user equipment is in an idle state, and performing reselection and switching of a target first network cell in cells except the non-accessible cell.
In an exemplary embodiment, the method further comprises:
and after the uplink data transmission fault is determined to occur, the radio link control connection with the network equipment is disconnected, so that the user equipment enters an idle state.
In an exemplary embodiment, the method further comprises:
and after a first preset time length after the initial first network cell is set as the inaccessible cell, setting the initial first network cell as the accessible cell.
In an exemplary embodiment, the method further comprises:
recording the switching times of switching to a target first network cell;
responding to the switching times larger than a first set value, and switching to a second network cell; and the network standard of the second network cell is lower than the network standards of the initial first network cell and the target first network cell.
In an exemplary embodiment, the method further comprises:
and in response to the switching times being kept unchanged within a second preset time, reducing the switching times by a second set value.
In an exemplary embodiment, the step of switching to the target first network cell after determining that the uplink data transmission failure occurs includes:
and determining that the uplink data sending fault occurs and the signal quality of the initial first network cell is greater than a threshold value of preset signal quality, and switching to a target first network cell.
According to a second aspect of the embodiments of the present disclosure, there is provided a cell switching apparatus, applied to a user equipment, the apparatus including:
a detection module: the method comprises the steps that after the user equipment is accessed to an initial first network cell, whether an uplink data transmission fault occurs is detected, and the reason of the uplink data transmission fault is that uplink resources are insufficient due to uplink resource scheduling abnormity;
a first switching module: and after determining that the uplink data transmission fault occurs, switching to a target first network cell, wherein the network formats of the initial first network cell and the target network cell are the same.
In an exemplary embodiment, the detection module includes:
a detecting unit, configured to determine that at least M time domain units meeting a set condition exist in N consecutive time domain units when the user equipment is in a connected state, where the set condition includes a first condition, and the first condition includes that uplink resources configured by a network corresponding to the time domain units are insufficient to transmit uplink data to be transmitted; wherein M is greater than 0 and less than or equal to N.
In an exemplary embodiment, the setting condition further includes a second condition, and the second condition further includes: and the user equipment continuously sends the uplink resource request on the corresponding time domain unit.
In an exemplary embodiment, the first switching module is further configured to:
and after the uplink data transmission fault is determined to occur, setting the initial first network cell as a non-accessible cell when the user equipment is in an idle state, and performing reselection and switching of a target first network cell in cells except the non-accessible cell.
In an exemplary embodiment, the apparatus further comprises:
the connection control module: and after determining that the uplink data transmission fault occurs, disconnecting the radio link control connection with the network equipment, and enabling the user equipment to enter an idle state.
In an exemplary embodiment, the apparatus further comprises:
setting a module: and after setting a first preset time length after the initial first network cell is the inaccessible cell, setting the initial first network cell as the accessible cell.
In an exemplary embodiment, the apparatus further comprises:
a recording module: configured to record a number of handovers to a target first network cell;
a second switching module: configured to switch to a second network cell in response to the number of handovers being greater than a first set value; and the network standard of the second network cell is lower than the network standards of the initial first network cell and the target first network cell.
In an exemplary embodiment, the apparatus further comprises:
an update module: and the switching frequency is reduced by a second set value in response to the switching frequency being kept unchanged in a second preset time length.
According to a third aspect of the embodiments of the present disclosure, there is provided a user equipment, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the cell handover method according to any one of the first aspect of the exemplary embodiments of the present disclosure.
According to a fourth aspect of the disclosed embodiments, there is provided a non-transitory computer readable storage medium, wherein instructions, when executed by a processor of a user equipment, enable the user equipment to perform the cell handover method according to any one of the first aspect of the disclosed exemplary embodiments.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the uplink data sending fault of the user equipment is identified in time as the situation that the uplink resource is insufficient due to abnormal uplink resource scheduling, and the uplink data sending fault is switched to another cell in the same network, so that the phenomena of blocking, breaking, incapability of accessing a server and the like are prevented, and the user experience is improved.
In addition, compared with a mode that the network standard is reduced as long as the user equipment has uplink data transmission failure without considering failure reasons, the user equipment is made to reside in the original network, and the use requirement of a user for using a high-level network standard can be met.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a flow chart illustrating a method of cell handover in accordance with an exemplary embodiment;
FIG. 2 is a flow chart illustrating a method of cell handover in accordance with an example embodiment;
FIG. 3 is a flow chart illustrating another method of cell handover in accordance with an exemplary embodiment;
fig. 4 is a block diagram illustrating a cell switching apparatus according to an example embodiment;
fig. 5 is a block diagram illustrating another cell switching apparatus according to an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
In some possible embodiments, for a cell with poor network signal quality, uplink resources allocated by the network device are likely to be insufficient for the UE to transmit all data to be transmitted; for a cell with better network signal quality, too many connection devices in the same cell may cause that uplink resources allocated by network devices are less and user equipment is affected to send uplink data due to untimely scheduling of uplink resources of the cell. The uplink data transmission failure may be slow uplink data transmission, uplink data transmission stuck, uplink data accumulation, or the like. When uplink data transmission failure occurs, the user equipment directly degrades a Radio Access Technology (RAT) network system (for example, switching from a 5G cell to a 4G cell). However, this approach may significantly affect the user experience to some extent, for example, the speed of downlink data reception of the user equipment.
In an exemplary embodiment of the present disclosure, a cell switching method is provided, which is applied to a user equipment, where the user equipment includes an electronic device with a network connection function, such as a mobile phone, a tablet, and an intelligent wearable device. Fig. 1 is a flowchart illustrating a cell handover method according to an exemplary embodiment, where, as shown in fig. 1, the cell handover method includes steps S101 to S102:
step S101: after user equipment is accessed to an initial first network cell, detecting whether an uplink data transmission fault occurs, wherein the fault reason of the uplink data transmission fault is that uplink resources are insufficient due to abnormal uplink resource scheduling;
step S102: and switching to a target first network cell after the uplink data transmission fault is determined to occur.
In some possible embodiments, the first network cell is an SA cell, and the corresponding first network is an independently networked 5G network. The initial first network cell is an SA cell, and the target first network cell is another SA cell, that is, the network systems of the initial first network cell and the target first network cell are the same.
In step S101, when detecting whether the uplink data transmission failure occurs, it may first detect whether the uplink data transmission failure occurs in the initial first network cell of the user equipment, and then detect the cause of the uplink data transmission failure, so as to determine the failure cause. The reason for insufficient uplink resources may be that the initial first network cell has poor signal quality, or that the first network cell has good signal quality but uplink resource scheduling is abnormal, where the reason for the abnormal uplink resource scheduling may be that too many users are served by the same cell. In order to distinguish the two different reasons, the signal quality of the initial first network cell may be determined according to the process of receiving downlink data, and when it is excluded that the signal quality of the initial first network cell is greater than the signal quality threshold, the reason that the uplink resource is insufficient is considered as an uplink resource scheduling abnormality.
In some possible embodiments, the uplink data transmission failure includes: when the ue is in a connected state, at least M time domain units meeting a set condition exist in N consecutive time domain units, where the set condition includes a first condition, where the first condition includes that uplink resources configured by a network corresponding to the time domain units are not enough to transmit uplink data to be transmitted, and M is greater than 0 and less than or equal to N (a preferred mode is that M is greater than N/2 and less than or equal to N). Therefore, when detecting whether the uplink data transmission failure occurs, it is necessary to detect whether at least M time domain units meeting the set condition exist in the N consecutive time domain units. The time domain unit may be a slot (slot), a sub-slot (sub-slot), an Orthogonal Frequency Division Multiplexing (OFDM) symbol, and the like.
When determining whether the uplink resources configured by the network in each time slot are enough to transmit the uplink data to be transmitted, the remaining uplink resources in the time domain unit may be calculated, that is, the uplink resources configured by the network minus the uplink resources remaining from the uplink resources used for transmitting the uplink data, where the remaining uplink resources may be represented by pending _ size, and when the pending _ size is less than or equal to a set uplink resource threshold, it is determined that the uplink resources configured by the network in the time slot are not enough to transmit the uplink data to be transmitted, and when the pending _ size is greater than the set uplink resource threshold T, it is determined that the uplink resources configured by the network in the time slot are enough to transmit the uplink data to be transmitted. In another implementation manner, a status parameter may be used to indicate whether uplink resources configured by the network in a timeslot are sufficient for transmitting uplink data to be transmitted, for example, when the value of the status parameter is 0, it indicates that uplink resources configured by the network in the timeslot are insufficient for transmitting uplink data to be transmitted, and when the value of the status parameter is 1, it indicates that uplink resources configured by the network in the timeslot are sufficient for transmitting uplink data to be transmitted.
In one example, N is 50, M is 40, and the time domain unit is a time slot. Detecting whether the uplink data transmission fault occurs or not, including: the method comprises the steps that user equipment detects whether pending _ size of more than 40 time slots in continuous 50 time slots is smaller than or equal to T in an RRC connection state, when the time slots meeting the condition that the pending _ size is smaller than or equal to T exceeds 40, uplink data transmission faults are determined to occur, and the reasons of the faults are uplink resource insufficiency caused by abnormal uplink resource scheduling.
In some possible embodiments, the setting condition includes, in addition to the first condition, a second condition: the second condition is that the user equipment continuously sends an uplink resource request on a corresponding time domain unit.
In one example, N is 50, M is 40, and the time domain unit is a time slot. Detecting whether the uplink data transmission fault occurs or not, including: the method comprises the steps that the user equipment detects whether more than 40 continuous time slots meeting a first condition exist in 50 continuous time slots in an RRC (radio resource control) connection state, the pending _ size of each time slot in the 40 time slots meeting the first condition is 0, the user equipment also continuously sends an uplink resource request on a corresponding time domain unit, and the occurrence of uplink data sending faults is determined, wherein the reasons of the faults are that uplink resources are insufficient due to uplink resource scheduling abnormity.
In some possible embodiments, step S102 includes: and after the uplink data transmission fault is determined to occur, setting the initial first network cell as the inaccessible cell when the user equipment is in an idle state, and reselecting and switching the first network cell in cells except the inaccessible cell. After the uplink data transmission failure is determined to occur, the normal transmission of the uplink data may be resumed by the user equipment in a short time due to the fact that the scheduling condition of the initial first network cell is restored to normal, so that the initial first network cell is set as the inaccessible cell without adopting the method that the uplink data transmission failure is determined to occur in a connected state, and the initial first network cell is set as the inaccessible cell only when the user equipment is switched to an idle state.
After the uplink data transmission fault is determined to occur, the method for the user to enter the idle state includes the following two methods:
first, determining that the uplink data transmission failure occurs, continuously maintaining RRC connection, and after the network device releases the RRC connection, the user equipment passively enters an idle state.
And secondly, determining that the uplink data transmission fault occurs, actively disconnecting the RRC connection with the network equipment, and enabling the user equipment to actively enter an idle state.
The method for setting the initial first network cell as the inaccessible cell comprises the following steps: and the identifier of the first network cell is placed in the access blacklist, and the user equipment does not select the cell accessed in the access blacklist when reselecting the cell.
In some possible embodiments, the method further comprises: setting an initial first network cell as an accessible cell after a first preset time length after the initial first network cell is set as an inaccessible cell; therefore, the initial first network cell is not set as the inaccessible cell for a long time, and can be reselected for access when the signal quality of the initial first network cell becomes good or the resource scheduling is normal, so as to fully utilize the network resources. The first preset time period is a settable value, for example, 5 minutes or 30 minutes, and the first preset time period may be modified by the network device according to actual needs.
In some embodiments, the step of switching to the target first network cell after determining that the uplink data transmission failure occurs includes:
and determining that the uplink data sending fault occurs and the signal quality of the initial first network cell is greater than a threshold value of preset signal quality, and switching to a target first network cell.
After determining that the uplink data transmission failure occurs in the ue, determining whether the Signal Quality of the initial first network cell is greater than a threshold of preset Signal Quality, where the size of the threshold may be set according to specific needs, which is not specifically limited in this embodiment, and the Signal Quality may be represented by RSSI (Received Signal Strength of carrier), RSRQ (Reference Signal Receiving Quality), and/or RSRP (Reference Signal Receiving Power). If the signal quality of the initial first network cell is greater than a preset signal quality threshold value, switching to a target first network cell; and if the signal quality of the initial first network cell is less than or equal to the threshold value of the preset signal quality, switching to a second network cell.
In the embodiment of the disclosure, the condition that the uplink data transmission failure of the user equipment is insufficient due to abnormal uplink resource scheduling is timely identified, and the uplink data transmission failure is switched to another cell in the same network, so that the phenomena of jamming, flow cutoff, incapability of accessing a server and the like are prevented, and the user experience is improved. In addition, compared with a mode that the network standard is reduced as long as the user equipment has uplink data transmission failure without considering failure reasons, the user equipment is made to reside in the original network, and the use requirement of a user for using a high-level network standard can be met.
In an exemplary embodiment of the present disclosure, a cell switching method is provided, which is applied to a user equipment, where the user equipment includes an electronic device with a network connection function, such as a mobile phone, a tablet, and an intelligent wearable device. Fig. 2 is a flowchart illustrating a cell switching method according to an exemplary embodiment, where, as shown in fig. 2, the cell switching method includes steps S101 to S102, which are executed in a loop, and steps S103 to S104:
wherein, the first and the second end of the pipe are connected with each other,
step S103: recording the switching times of switching to a target first network cell;
step S104: responding to the switching times larger than a first set value, and switching to a second network cell; and the network standard of the second network cell is lower than the network standards of the initial first network cell and the target first network cell.
In one example, the first network cell is an SA cell, corresponding to an independently networked 5G network; the second network cell is an LTE cell, corresponding to a 4G network.
The first setting value in step S201 is an empirical value. When the switching times are greater than the first set value, the network environments of a plurality of adjacent first network cells near the user equipment are poor, the possibility that the user equipment continuously resides in the first network to solve the uplink data transmission fault is low, and the user equipment can only be switched to a second network cell to try to successfully transmit the uplink data.
In some possible embodiments, before step S101, the method further includes: and the user equipment is switched from the power-off state to the power-on state, or the initial value of the switching times is set to be 0 after the user equipment is switched from the flight mode to the working mode.
For example: when the user equipment is switched from the power-off state to the power-on state, the first network cell is switched for 2 times in the power-on state, the switching frequency is 2, at this time, the user equipment is switched to the power-off state, and when the user equipment is switched to the power-on state again, the switching frequency is reset to 0.
In the embodiment of the present disclosure, whether the switching frequency for switching the first network cell is greater than a first set value is used as a determination condition for determining whether to switch to the second network cell, so that it can be fully determined whether the network environment of a plurality of adjacent first network cells near the user equipment cannot overcome the uplink data transmission failure, and the user equipment is switched to the second network when the switching frequency is greater than the first set value, so that the user equipment can remain in the first network as much as possible, and the use requirement of the user for using the advanced network standard can be met.
In some possible embodiments, the cell handover method further includes: and in response to the switching frequency being kept unchanged within a second preset time length, reducing the switching frequency by a second set value.
In some possible embodiments, the cell handover method further includes: and in response to the switching times being larger than the third set value and being kept unchanged within a second preset time period, reducing the switching times by a second set value.
In one example, the third setting value is 0.
In another example, the third set value is a value greater than 0, and the third set value is an empirical value.
When the switching times for switching the first network are kept unchanged within the second preset time, the signal quality of the first network cell is better or the resource scheduling capability is stronger, the switching times are reduced by a second set value, and the situation that the second network cell is switched to because the accumulated switching times are larger than the first set value can be prevented. The manner of lowering the second setting value may be set by itself according to the first network condition.
In one example, the second set value is 1, and the second preset time period is 3 minutes. When the switching frequency reaches 2, if the switching frequency does not change in 3 minutes, subtracting 1 from the switching frequency to update the switching frequency to 1, and if the switching frequency does not change in the subsequent 3 minutes, subtracting 1 from the switching frequency to update the switching frequency to 0.
When the first network cell is an SA cell, the switching times are kept unchanged within a second preset time length, and the switching times are reduced, so that the user equipment can reside in a 5G network with a better network type as much as possible.
The present disclosure provides a specific embodiment, and fig. 3 is a flowchart illustrating a cell switching method according to an exemplary embodiment, where as shown in fig. 3, the cell switching method includes the following steps:
step S301, the ue accesses an initial SA cell. The number of times of switching SA cells recorded at this time is X.
Step S302, detecting whether an uplink data transmission fault occurs, wherein the fault reason of the uplink data transmission fault is that uplink resources are insufficient due to uplink resource scheduling abnormity. If yes, go to step S303, if no, continue to carry out this step.
The specific detection method comprises the following steps: when the user equipment is in a connected state, calculating the remaining uplink resources on each time slot, and if more than 40 time slots meeting a first condition exist in 50 consecutive time slots, the first condition includes that the remaining uplink resources on the corresponding time slot are not enough to transmit uplink data to be transmitted and the user equipment continuously transmits uplink resource requests on the corresponding time slot.
Step S303, the radio link control connection with the network device is disconnected, the user equipment enters an idle state, the SA cell reselection and switching are carried out, and the switching times of the switched SA cell is recorded to be increased by 1.
Not shown in the figure, this step S303 further includes adding the initial SA cell to the blacklist, and after 5 minutes, removing the cell from the blacklist.
Step S304, judging whether the switching times is greater than or equal to 3, if yes, going to step S305, if no, going to step S302.
Step S305, switching to the LTE cell.
In the execution process of the flow, whether the switching frequency is greater than 0 in 3 minutes or not is judged through parallel thread execution, and if so, the switching frequency is reduced by 1.
In an exemplary embodiment of the present disclosure, fig. 4 is a structural diagram of a cell switching apparatus according to an exemplary embodiment, and as shown in fig. 4, the cell switching apparatus includes:
the detection module 301: the method comprises the steps that after the user equipment is accessed to an initial first network cell, whether an uplink data transmission fault occurs is detected, and the reason of the uplink data transmission fault is that uplink resources are insufficient due to uplink resource scheduling abnormity;
the first switching module 302: and after determining that the uplink data transmission fault occurs, switching to a target first network cell, wherein the network formats of the initial first network cell and the target network cell are the same.
In some possible embodiments, the detecting module 301 includes a detecting unit, configured to determine, when the ue is in a connected state, that there are at least M time domain units meeting a set condition in N consecutive time domain units, where the set condition includes a first condition, where the first condition includes that uplink resources configured by a network corresponding to the time domain units are not enough to transmit uplink data to be transmitted; wherein M is greater than 0 and less than or equal to N.
In some possible embodiments, the setting condition further includes a second condition, and the second condition further includes: and the user equipment continuously sends the uplink resource request on the corresponding time domain unit.
In some possible embodiments, the first switching module is further configured to:
and after the uplink data transmission fault is determined to occur, setting the initial first network cell as a non-accessible cell when the user equipment is in an idle state, and performing reselection and switching of a target first network cell in cells except the non-accessible cell.
In some possible embodiments, the apparatus further comprises:
the connection control module: and after determining that the uplink data transmission fault occurs, disconnecting the radio link control connection with the network equipment, and enabling the user equipment to enter an idle state.
In some possible embodiments, the apparatus further comprises:
setting a module: and after setting a first preset time length after the initial first network cell is the inaccessible cell, setting the initial first network cell as the accessible cell.
In some possible embodiments, the apparatus further comprises:
a recording module: configured to record a number of handovers to a target first network cell;
a second switching module: configured to switch to a second network cell in response to the number of handovers being greater than a first set value; and the network standard of the second network cell is lower than the network standards of the initial first network cell and the target first network cell.
In some possible embodiments, the apparatus further comprises:
an update module: and the switching frequency is reduced by a second set value in response to the switching frequency being kept unchanged in a second preset time length.
In some possible embodiments, the first handover module 302 is further configured to determine that the uplink data transmission failure occurs, and the signal quality of the initial first network cell is greater than a preset signal quality threshold, and handover to a target first network cell.
With regard to the apparatus in the above embodiments, the specific manner in which each module performs the operations has been described in detail in the embodiments related to the method, and will not be described in detail here.
When the communication device is a user equipment, the structure thereof can also be as shown in fig. 5. Fig. 5 is a block diagram illustrating a cell switching apparatus 500 according to an example embodiment. For example, the apparatus 500 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 5, the apparatus 500 may include one or more of the following components: processing component 502, memory 504, power component 506, multimedia component 508, audio component 510, input/output (I/O) interface 512, sensor component 514, and communication component 516.
The processing component 502 generally controls overall operation of the device 500, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 502 may include one or more processors 520 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 502 can include one or more modules that facilitate interaction between the processing component 502 and other components. For example, the processing component 502 can include a multimedia module to facilitate interaction between the multimedia component 508 and the processing component 502.
The memory 504 is configured to store various types of data to support operation at the device 500. Examples of such data include instructions for any application or method operating on device 500, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 504 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 power supply component 506 provides power to the various components of the device 500. The power components 506 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 500.
The multimedia component 508 includes a screen that provides an output interface between the device 500 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 508 includes a front facing camera and/or a rear facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the device 500 is in an operating mode, such as a shooting 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 510 is configured to output and/or input audio signals. For example, audio component 510 includes a Microphone (MIC) configured to receive external audio signals when apparatus 500 is in an operating 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 504 or transmitted via the communication component 516. In some embodiments, audio component 510 further includes a speaker for outputting audio signals.
The I/O interface 512 provides an interface between the processing component 502 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 assembly 514 includes one or more sensors for providing various aspects of status assessment for the device 500. For example, the sensor assembly 514 may detect an open/closed state of the device 500, the relative positioning of the components, such as a display and keypad of the apparatus 500, the sensor assembly 514 may also detect a change in the position of the apparatus 500 or a component of the apparatus 500, the presence or absence of user contact with the apparatus 500, orientation or acceleration/deceleration of the apparatus 500, and a change in the temperature of the apparatus 500. The sensor assembly 514 may include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor assembly 514 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 514 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 516 is configured to facilitate communication between the apparatus 500 and other devices in a wired or wireless manner. The apparatus 500 may access a wireless network based on a communication standard, such as WiFi, 4G or 5G, or a combination thereof. In an exemplary embodiment, the communication component 516 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 516 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 apparatus 500 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 504 comprising instructions, executable by the processor 520 of the apparatus 500 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.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (19)
1. A cell switching method is applied to user equipment, and is characterized in that the method comprises the following steps:
after the user equipment is accessed to an initial first network cell, detecting whether an uplink data transmission fault occurs, wherein the fault reason of the data transmission fault is that uplink resources are insufficient due to abnormal uplink resource scheduling;
and switching to a target first network cell after the uplink data transmission fault is determined to occur, wherein the network systems of the initial first network cell and the target network cell are the same.
2. The cell switching method of claim 1, wherein the uplink data transmission failure comprises:
when the user equipment is in a connected state, at least M time domain units meeting set conditions exist in N continuous time domain units, the set conditions comprise first conditions, and the first conditions comprise that uplink resources configured by a corresponding network on the time domain units are not enough to transmit uplink data to be transmitted; wherein M is greater than 0 and less than or equal to N.
3. The cell switching method according to claim 2, wherein the setting condition further includes a second condition at the same time, the second condition including: and the user equipment continuously sends the uplink resource request on the corresponding time domain unit.
4. The cell switching method according to claim 1, wherein the determining that the uplink data transmission failure occurs and switching to the target first network cell comprises:
and after the uplink data transmission fault is determined to occur, setting the initial first network cell as a non-accessible cell when the user equipment is in an idle state, and performing reselection and switching of a target first network cell in cells except the non-accessible cell.
5. The cell handover method of claim 4, wherein the method further comprises:
and after the uplink data transmission fault is determined to occur, the radio link control connection with the network equipment is disconnected, so that the user equipment enters an idle state.
6. The cell handover method of claim 5, wherein the method further comprises:
and after a first preset time length after the initial first network cell is set as the inaccessible cell, setting the initial first network cell as the accessible cell.
7. The cell handover method according to any of claims 1 to 6, wherein the method further comprises:
recording the switching times of switching to a target first network cell;
responding to the switching times larger than a first set value, and switching to a second network cell; and the network standard of the second network cell is lower than the network standards of the initial first network cell and the target first network cell.
8. The cell handover method of claim 7, wherein the method further comprises:
and in response to the switching times being kept unchanged within a second preset time, reducing the switching times by a second set value.
9. The cell switching method according to claim 1, wherein the step of switching to the target first network cell after determining that the uplink data transmission failure occurs comprises:
and determining that the uplink data sending fault occurs and the signal quality of the initial first network cell is greater than a threshold value of preset signal quality, and switching to a target first network cell.
10. A cell switching device applied to User Equipment (UE), the device comprising:
a detection module: the method comprises the steps that after the user equipment is accessed to an initial first network cell, whether an uplink data transmission fault occurs is detected, and the reason of the uplink data transmission fault is that uplink resources are insufficient due to uplink resource scheduling abnormity;
a first switching module: and after determining that the uplink data transmission fault occurs, switching to a target first network cell, wherein the network formats of the initial first network cell and the target network cell are the same.
11. The cell handover apparatus of claim 10, wherein the detection module comprises:
a detecting unit, configured to determine that at least M time domain units meeting a set condition exist in N consecutive time domain units when the user equipment is in a connected state, where the set condition includes a first condition, and the first condition includes that uplink resources configured by a network corresponding to the time domain units are insufficient to transmit uplink data to be transmitted; wherein M is greater than 0 and less than or equal to N.
12. The cell switching apparatus according to claim 11, wherein the setting condition further includes a second condition at the same time, the second condition further includes: and the user equipment continuously sends the uplink resource request on the corresponding time domain unit.
13. The cell switching apparatus of claim 10, wherein the first switching module is further configured to:
and after the uplink data transmission fault is determined to occur, setting the initial first network cell as a non-accessible cell when the user equipment is in an idle state, and performing reselection and switching of a target first network cell in cells except the non-accessible cell.
14. The cell switching apparatus of claim 13, wherein said apparatus further comprises:
the connection control module: and after determining that the uplink data transmission fault occurs, disconnecting the radio link control connection with the network equipment, and enabling the user equipment to enter an idle state.
15. The cell switching apparatus of claim 14, wherein said apparatus further comprises:
setting a module: and after setting a first preset time length after the initial first network cell is the inaccessible cell, setting the initial first network cell as the accessible cell.
16. The cell switching apparatus according to any of claims 10 to 14, wherein the apparatus further comprises:
a recording module: configured to record a number of handovers to a target first network cell;
a second switching module: configured to switch to a second network cell in response to the number of handovers being greater than a first set value; and the network standard of the second network cell is lower than the network standards of the initial first network cell and the target first network cell.
17. The cell switching apparatus of claim 16, wherein the apparatus further comprises:
an update module: and the switching frequency is reduced by a second set value in response to the switching frequency being kept unchanged in a second preset time length.
18. A user equipment, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the cell handover method according to any one of claims 1-9.
19. A non-transitory computer readable storage medium having instructions therein which, when executed by a processor of a user equipment, enable the user equipment to perform the cell handover method of any one of claims 1-9.
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