CN111698746B - Cell switching method and device - Google Patents
Cell switching method and device Download PDFInfo
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- CN111698746B CN111698746B CN201910185261.8A CN201910185261A CN111698746B CN 111698746 B CN111698746 B CN 111698746B CN 201910185261 A CN201910185261 A CN 201910185261A CN 111698746 B CN111698746 B CN 111698746B
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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
- H04W36/16—Performing reselection for specific purposes
- H04W36/165—Performing reselection for specific purposes for reducing network power consumption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/365—Power headroom reporting
Abstract
The embodiment of the invention provides a cell switching method and a cell switching device. The method comprises the following steps: when the RRC reestablishment occurs for the first time, judging whether the RRC reestablishment times in a specified time length are larger than a preset first time threshold; if so, judging whether the terminal has power allowance reporting and whether the frequency of the uplink broadband equivalent spectral efficiency lower than a specified value is greater than a preset second frequency threshold; if yes, inquiring whether the current cell has a non-overloaded pilot frequency same-coverage cell; if the current cell has the pilot frequency co-coverage cell which is not overloaded, initiating an RRC release process, and carrying the frequency point information of the pilot frequency co-coverage cell which is not overloaded in an RRC connection release message to indicate the terminal to preferentially reselect the pilot frequency co-coverage cell. The embodiment of the invention can avoid that the user can not use satisfactory service quality for a long time, and improve the user perception.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a cell switching method and a cell switching device.
Background
In a cell overlapping coverage area or a high-interference area, when the interference suffered by the terminal is large or the service quality is worse than a certain degree, the terminal is triggered to be switched to other cells, but no matter the cell switching based on coverage or quality triggering, satisfactory network quality may still not be obtained.
TD-LTE (Time Division Long Term Evolution) adopts co-frequency networking, cells of the whole network use the same frequency point, terminal users in each cell can be subjected to co-frequency interference from other cells, and an area which is influenced by more co-frequency adjacent cell interference and has larger interference is generally called as an overlapping coverage area. As shown in fig. 1, CELL 1(CELL1) and CELL 2(CELL2) are co-frequency neighboring CELLs, CELL1 and CELL2 have co-frequency overlapping coverage areas, and terminal UE1 is a bad user located in the overlapping coverage area. UE1 performs service under CELL1, and terminal UE2 performs service under CELL2, in an overlapping coverage area, co-Channel interference between UE1 and UE2 is unavoidable, and if the interference borne by UE1 is large but handover based on coverage is not satisfied, the current implementation is that UE1 may always up-regulate PUSCH (Physical Uplink Shared Channel) power to obtain a satisfactory signal-to-noise ratio, or reduce MCS (Modulation Coding Scheme) to adapt to poor data transmission quality, but even in this case, satisfactory network quality may not be obtained, the service quality is worse to a certain extent, and intra-system and inter-system handover based on quality may be triggered.
However, because the wireless signals in the overlapping coverage area are very poor, no matter the handover is triggered based on coverage or quality, signaling interaction in the handover process may not be completed, most commonly, a handover completion message (uplink) base station cannot normally receive, and finally, desynchronization occurs, and a series of vicious cycles of RLC ((Radio Link Control layer protocol in LTE) reaching the maximum retransmission times, RRC (Radio Resource Control) reestablishment, RRC release, reselection, re-access, and the like, make the terminal unable to use satisfactory service quality for a long time, and make the user perception poor.
Disclosure of Invention
The embodiment of the invention provides a cell switching method and a cell switching device, which are used for solving the defect that a terminal cannot use satisfactory service quality for a long time in the prior art and improving user perception.
The embodiment of the invention provides a cell switching method, which comprises the following steps:
when the RRC reestablishment occurs for the first time, judging whether the RRC reestablishment times in a specified time length are larger than a preset first time threshold;
if the RRC reestablishment frequency is greater than a preset first time threshold within the specified time, judging whether the terminal has power allowance reporting and whether the frequency that the uplink broadband equivalent spectral efficiency is lower than a specified value is greater than a preset second time threshold;
when the terminal has no power allowance report and the frequency of the uplink broadband equivalent spectral efficiency lower than a specified value is greater than a preset second time threshold, inquiring whether the current cell has a non-overloaded pilot frequency same-coverage cell;
and when the current cell has the pilot frequency co-coverage cell which is not overloaded, initiating an RRC release process, and carrying the frequency point information of the pilot frequency co-coverage cell which is not overloaded in an RRC connection release message to indicate the terminal to preferentially reselect the pilot frequency co-coverage cell.
An embodiment of the present invention provides a cell switching apparatus, including:
the first judgment unit is used for judging whether the RRC reestablishment times in the specified time length are greater than a preset first time threshold or not when the RRC reestablishment occurs for the first time at the terminal;
a second judging unit, configured to judge whether the terminal has power headroom to report and whether the number of times that the uplink broadband equivalent spectral efficiency is lower than a specified value is greater than a preset second time threshold if the RRC reestablishment number is greater than the preset first time threshold within the specified duration;
a third judging unit, configured to query whether an un-overloaded different frequency co-coverage cell exists in a current cell when the terminal has no power headroom report and the number of times that the uplink wideband equivalent spectral efficiency is lower than a specified value is greater than a preset second time threshold;
and the reselection unit is used for initiating an RRC release process when the current cell has the pilot frequency co-coverage cell which is not overloaded, and carrying the frequency point information of the pilot frequency co-coverage cell which is not overloaded in an RRC connection release message so as to indicate the terminal to preferentially reselect the pilot frequency co-coverage cell.
The embodiment of the present invention further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the cell switching method is implemented.
An embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the cell handover method.
According to the cell switching method and device provided by the embodiment of the invention, the downlink RRC release message is used for the user in the overlapping coverage area or the high-interference area to reselect other pilot frequency cells, the switching process is easier to succeed, the user is prevented from being unable to use satisfactory service quality for a long time, and the user perception is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a same frequency overlapping coverage area;
FIG. 2 is a flowchart of a cell switching method according to an embodiment of the present invention;
FIG. 3 is a flowchart of a cell switching method according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a cell switching apparatus according to an embodiment of the present invention;
fig. 5 is a schematic physical structure diagram of the server.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 invention.
Fig. 2 is a flowchart illustrating a cell handover method according to an embodiment of the present invention.
As shown in fig. 2, the cell switching method provided in the embodiment of the present invention specifically includes the following steps:
s11, when the RRC is reestablished for the first time, judging whether the RRC reestablishment times in the specified time length are larger than a preset first time threshold;
specifically, a timer is set to actively monitor a difference user in a high interference area or an overlapping coverage area, and when an RRC reestablishment occurs for the first time in a certain user in a cell, the RRC reestablishment number counting timer is started. If the number of times of reestablishment is greater than the set first time threshold before the RRC number of times of reestablishment counting timer is overtime, the radio spectrum efficiency is low, and the cell switching based on coverage or quality cannot be completed.
S12, if the RRC reestablishment times are larger than a preset first time threshold within the specified duration, judging whether the terminal has power allowance reporting and whether the times that the uplink broadband equivalent spectrum efficiency is lower than a specified value are larger than a preset second time threshold;
specifically, after multiple re-establishment, it is determined whether the Power of the terminal is blocked and the service quality is poor, that is, whether the Power Headroom Report (PHR) of the terminal is less than or equal to 0 and the number of times that the uplink broadband equivalent spectral efficiency is lower than the specified threshold is greater than the second threshold.
S13, when the terminal has no power allowance report and the frequency of the equivalent frequency spectrum efficiency of the uplink broadband lower than the designated value is larger than the preset second frequency threshold, inquiring whether the current cell has the non-overloaded pilot frequency same-coverage cell;
specifically, if it is determined that power limitation and poor service quality have occurred, that is, the terminal has no power headroom report (PHR is less than or equal to 0) and the number of times that the uplink broadband equivalent spectral efficiency is lower than the specified threshold is greater than the set second threshold, the base station actively queries whether the cell has a different-frequency same-coverage cell. After inquiring that the pilot frequency same-coverage cell exists in the current cell, the base station inquires the load condition of the pilot frequency adjacent cell and judges whether the load is overloaded.
S14, when the current cell has the non-overloaded pilot frequency co-coverage cell, initiating an RRC release process, and carrying the frequency point information of the non-overloaded pilot frequency co-coverage cell in an RRC connection release message, so as to indicate the terminal to preferentially reselect the pilot frequency co-coverage cell.
Specifically, if the load condition of the pilot frequency adjacent cell is not overloaded, an RRC release process is actively initiated, and the RRC connection release message carries pilot frequency and same-coverage cell frequency point information to indicate that the terminal preferentially reselects the pilot frequency and same-coverage cell.
The embodiment of the invention uses the RRC release reselection mode to replace the switching mode process based on coverage or quality, which is easier to succeed, and is a feasible and operable bad user rescue mechanism.
According to the cell switching method provided by the embodiment of the invention, the downlink RRC release message is used for the user in the overlapping coverage area or the high-interference area to reselect other pilot frequency cells, the switching process is easier to succeed, the user is prevented from being unable to use satisfactory service quality for a long time, and the user perception is improved.
On the basis of the foregoing embodiment, S16 specifically includes: and carrying information for setting the frequency point priority of the non-overloaded pilot frequency co-coverage cell to be the highest in the RRC connection release message so as to indicate the terminal to preferentially reselect the pilot frequency co-coverage cell.
Specifically, the frequency point priority of the different-frequency same-coverage cell is set to be the highest in idle Mode Mobility Control Info (IMMC, idle mobile Control information) of an RRC connection release message (RRC connection release), so as to instruct the terminal to switch to the frequency point of the different-frequency same-coverage cell with the first priority.
On the basis of the above embodiment, the method further includes:
and after the terminal is instructed to reselect the pilot frequency co-coverage cell, setting a timer with a specified time length to avoid ping-pong reselection.
On the basis of the foregoing embodiment, the setting a timer of a specified duration to avoid ping-pong reselection includes: and setting a T320 timer, and preventing the terminal from reselecting the current cell before the T320 timer is overtime.
Specifically, a suitable T320 timer is set to avoid ping-pong reselection, and prevent the terminal from switching back to the current cell.
On the basis of the above embodiment, the method further includes:
after the RRC release process is initiated, sending a notification message to the pilot frequency co-coverage cell, wherein the notification message is used for notifying the pilot frequency co-coverage cell to initiate A5 measurement on the current cell so as to avoid ping-pong handover.
Specifically, in the embodiment of the present invention, considering the suppression of ping-pong handover, by using a ping-pong handover suppression policy of load balancing, after the current cell indicates the terminal to reselect the inter-frequency co-coverage cell, the target side (the inter-frequency co-coverage cell) is notified by using an X2 port message, the target side knows that this scenario occurs, and initiates an a5 measurement mechanism (effective for a period of time, for example, 30 minutes) to the source side (the current cell) to avoid the occurrence of ping-pong handover.
The a5 measurement indicates that the Serving cell quality is below an absolute threshold of 1(Serving < threshold1) and the neighbor cell quality is above an absolute threshold of 2 (neighbor > threshold 2). May be used to initiate inter-frequency handover.
It should be noted that, when the target inter-frequency co-coverage cell receives the X2 message sent by the source side for the first time, the timer for a5 measurement may not be started immediately, and the a5 measurement mechanism may be started after three X2 notification messages sent from the same source side cell are continuously received.
Fig. 3 is a flowchart illustrating a method for cell handover according to an embodiment of the present invention.
As shown in fig. 3, the method specifically includes the following steps:
step 1, judging whether the RRC reconnection times of the terminal reach a set threshold; if yes, turning to step 2;
step 2, judging whether the PHR power margin exists in the terminal and whether the equivalent frequency spectrum efficiency of the uplink broadband is continuously lower than a certain threshold; if yes, turning to step 3;
step 3, judging whether the cell has a same-frequency coverage pilot frequency adjacent cell; if yes, turning to step 4;
step 4, inquiring the load condition of the same-coverage different-frequency adjacent cell, and judging whether the cell is overloaded or not; if the overload is transmitted to the step 5;
and step 5, initiating an RRC release process, carrying the frequency point of the pilot frequency co-coverage cell in an RRC connection release message as a first priority, and setting a proper T320 timer to avoid ping-pong reselection, or informing the pilot frequency co-coverage cell to initiate an A5 measurement mechanism to the current cell to avoid ping-pong handover.
Fig. 4 is a schematic structural diagram illustrating a cell switching apparatus according to an embodiment of the present invention.
As shown in fig. 4, a cell switching apparatus provided in an embodiment of the present invention includes: a first judging unit 11, a second judging unit 12, a third judging unit 13 and a reselecting unit 14, wherein:
the first judging unit 11 is configured to, when the terminal first generates the RRC reestablishment, judge whether the RRC reestablishment frequency within the specified time period is greater than a preset first-time threshold;
specifically, a timer is set to actively monitor a difference user in a high interference area or an overlapping coverage area, and when an RRC reestablishment occurs for the first time in a certain user in a cell, the RRC reestablishment number counting timer is started.
If the number of times of reestablishment is greater than the set first time threshold before the RRC number of times of reestablishment counting timer is overtime, the radio spectrum efficiency is low, and the cell switching based on coverage or quality cannot be completed.
The second determining unit 12 is configured to determine whether the terminal has power headroom to report and whether the number of times that the uplink broadband equivalent spectral efficiency is lower than a specified value is greater than a preset second time threshold if the RRC reestablishment number is greater than the preset first time threshold within the specified duration;
specifically, after multiple re-establishment, it is determined whether the Power of the terminal is blocked and the service quality is poor, that is, whether the Power Headroom Report (PHR) of the terminal is less than or equal to 0 and the number of times that the uplink broadband equivalent spectral efficiency is lower than the specified threshold is greater than the second threshold.
The third determining unit 13 is configured to, when the terminal has no power headroom and the number of times that the uplink wideband equivalent spectral efficiency is lower than the specified value is greater than a preset second time threshold, query whether an un-overloaded different frequency co-coverage cell exists in the current cell;
specifically, if it is determined that power limitation and poor service quality have occurred, that is, the terminal has no power headroom report (PHR is less than or equal to 0) and the number of times that the uplink broadband equivalent spectral efficiency is lower than the specified threshold is greater than the set second threshold, the base station actively queries whether the cell has a different-frequency same-coverage cell.
After inquiring that the pilot frequency same-coverage cell exists in the current cell, the base station inquires the load condition of the pilot frequency adjacent cell and judges whether the load is overloaded.
The reselecting unit 14 is configured to initiate an RRC release procedure when the non-overloaded inter-frequency co-coverage cell exists in the current cell, and carry frequency point information of the non-overloaded inter-frequency co-coverage cell in an RRC connection release message, so as to indicate that the terminal preferentially reselects the inter-frequency co-coverage cell.
Specifically, if the load condition of the pilot frequency adjacent cell is not overloaded, an RRC release process is actively initiated, and the RRC connection release message carries pilot frequency and same-coverage cell frequency point information to indicate that the terminal preferentially reselects the pilot frequency and same-coverage cell.
The embodiment of the invention uses the RRC release reselection mode to replace the switching mode process based on coverage or quality, which is easier to succeed, and is a feasible and operable bad user rescue mechanism.
The cell switching device provided by the embodiment of the invention reselects other pilot frequency cells by using the downlink RRC release message for the users in the overlapping coverage area or the high-interference area, so that the switching process is easier to succeed, the users are prevented from using satisfactory service quality for a long time, and the user perception is improved.
On the basis of the foregoing embodiment, the reselection unit 14 is configured to carry, in the RRC connection release message, information that sets the frequency point priority of the non-overloaded inter-frequency co-coverage cell to be the highest, so as to indicate that the terminal preferentially reselects the inter-frequency co-coverage cell.
Specifically, the frequency point priority of the different-frequency same-coverage cell is set to be the highest in idle Mode Mobility Control Info (IMMC, idle mobile Control information) of an RRC connection release message (RRC connection release), so as to instruct the terminal to switch to the frequency point of the different-frequency same-coverage cell with the first priority.
On the basis of the above embodiment, the apparatus further includes:
and the setting unit is used for setting a timer with specified duration to avoid ping-pong reselection after the indicating terminal reselects the pilot frequency co-coverage cell.
On the basis of the foregoing embodiment, the setting unit is configured to set a T320 timer, and prevent the terminal from reselecting back to the current cell before the T320 timer expires.
Specifically, a suitable T320 timer is set to avoid ping-pong reselection, and prevent the terminal from switching back to the current cell.
On the basis of the above embodiment, the apparatus further includes:
a notifying unit, configured to send a notification message to the inter-frequency co-coverage cell after instructing the terminal to reselect the inter-frequency co-coverage cell, where the notification message is used to notify the inter-frequency co-coverage cell to initiate a5 measurement on a current cell to avoid ping-pong handover.
Specifically, in the embodiment of the present invention, considering the suppression of ping-pong handover, by using a ping-pong handover suppression policy of load balancing, after the current cell indicates the terminal to reselect the inter-frequency co-coverage cell, the target side (the inter-frequency co-coverage cell) is notified by using an X2 port message, the target side knows that the scenario occurs, and initiates an a5 measurement mechanism to the source side (the current cell) to avoid the occurrence of ping-pong handover.
The a5 measurement indicates that the Serving cell quality is below an absolute threshold of 1(Serving < threshold1) and the neighbor cell quality is above an absolute threshold of 2 (neighbor > threshold 2). May be used to initiate inter-frequency handover.
It should be noted that, when the target inter-frequency co-coverage cell receives the X2 message sent by the source side for the first time, the timer for a5 measurement may not be started immediately, and the a5 measurement mechanism may be started after three X2 notification messages sent from the same source side cell are continuously received.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
An example is as follows:
fig. 5 illustrates a physical structure diagram of a server, and as shown in fig. 5, the server may include: a processor (processor)21, a communication Interface (communication Interface)22, a memory (memory)23 and a communication bus 24, wherein the processor 21, the communication Interface 22 and the memory 23 complete communication with each other through the communication bus 24. Processor 21 may call logic instructions in memory 23 to perform the following method: when the RRC reestablishment occurs for the first time, starting an RRC reestablishment number counting timer; before the RRC reestablishment frequency counting timer is overtime, judging whether the RRC reestablishment frequency is greater than a preset first time threshold or not; if the RRC reestablishment times are larger than a preset first time threshold before the RRC reestablishment time counting timer is overtime, judging whether the terminal has power allowance reporting and whether the times that the uplink broadband equivalent spectrum efficiency is lower than a specified value are larger than a preset second time threshold; when the terminal has no power allowance report and the frequency of the uplink broadband equivalent spectral efficiency lower than a specified value is larger than a preset second frequency threshold, inquiring whether a different-frequency same-coverage cell exists in the current cell; if the current cell has a pilot frequency same-coverage cell, judging whether the load of the pilot frequency same-coverage cell is overloaded; and when the load of the pilot frequency co-coverage cell is not overloaded, initiating an RRC release process, and carrying the frequency point information of the pilot frequency co-coverage cell in an RRC connection release message to indicate the terminal to preferentially reselect the pilot frequency co-coverage cell.
In addition, the logic instructions in the memory 23 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Claims (10)
1. A method of cell handover, comprising:
when a Radio Resource Control (RRC) reestablishment occurs for the first time, judging whether the RRC reestablishment times in a specified time length are greater than a preset first time threshold;
if the RRC reestablishment frequency is greater than a preset first time threshold within the specified time length, judging whether the terminal has power allowance reporting and whether the frequency that the uplink broadband equivalent spectral efficiency is lower than a specified value is greater than a preset second time threshold;
when the terminal has no power allowance report and the frequency of the uplink broadband equivalent spectral efficiency lower than a specified value is greater than a preset second time threshold, inquiring whether the current cell has a non-overloaded pilot frequency same-coverage cell;
and when the current cell has the pilot frequency co-coverage cell which is not overloaded, initiating an RRC release process, and carrying the frequency point information of the pilot frequency co-coverage cell which is not overloaded in an RRC connection release message to indicate the terminal to preferentially reselect the pilot frequency co-coverage cell.
2. The method of claim 1, wherein the step of carrying the frequency point information of the non-overloaded inter-frequency co-coverage cell in the RRC connection release message to instruct the terminal to preferentially reselect to the inter-frequency co-coverage cell comprises:
and carrying information for setting the frequency point priority of the non-overloaded pilot frequency co-coverage cell to be the highest in the RRC connection release message so as to indicate the terminal to preferentially reselect the pilot frequency co-coverage cell.
3. The method of claim 1, further comprising:
and after the terminal is instructed to reselect the pilot frequency co-coverage cell, setting a timer with a specified time length to avoid ping-pong reselection.
4. The method of claim 3, wherein setting the timer for the specified duration to avoid ping-pong reselection comprises:
and setting a T320 timer, and preventing the terminal from reselecting the current cell before the T320 timer is overtime.
5. The method of claim 1, further comprising:
after instructing the terminal to reselect the pilot frequency co-coverage cell, sending a notification message to the pilot frequency co-coverage cell, wherein the notification message is used for notifying the pilot frequency co-coverage cell to initiate A5 measurement on the current cell so as to avoid ping-pong handover.
6. A cell switching apparatus, comprising:
the first judgment unit is used for judging whether the RRC reestablishment times in the specified time length are greater than a preset first time threshold when the RRC reestablishment of the radio resource control occurs for the first time at the terminal;
a second judging unit, configured to judge whether the terminal has power headroom to report and whether the number of times that the uplink broadband equivalent spectral efficiency is lower than a specified value is greater than a preset second time threshold if the RRC reestablishment number is greater than the preset first time threshold within the specified duration;
a third judging unit, configured to query whether an un-overloaded different frequency co-coverage cell exists in a current cell when the terminal has no power headroom report and the number of times that the uplink wideband equivalent spectral efficiency is lower than a specified value is greater than a preset second time threshold;
and the reselection unit is used for initiating an RRC release process when the current cell has the pilot frequency co-coverage cell which is not overloaded, and carrying the frequency point information of the pilot frequency co-coverage cell which is not overloaded in an RRC connection release message so as to indicate the terminal to preferentially reselect the pilot frequency co-coverage cell.
7. The apparatus of claim 6, wherein the reselecting unit is configured to carry information that sets a frequency point priority of the non-overloaded inter-frequency co-coverage cell to be highest in an RRC connection release message, so as to instruct a terminal to preferentially reselect to the inter-frequency co-coverage cell.
8. The apparatus of claim 6, further comprising:
and the setting unit is used for setting a timer with specified duration to avoid ping-pong reselection after the indicating terminal reselects the pilot frequency co-coverage cell.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of the cell handover method according to any of claims 1 to 5.
10. A non-transitory computer readable storage medium, having a computer program stored thereon, wherein the computer program, when being executed by a processor, is adapted to carry out the steps of the cell handover method according to any one of claims 1 to 5.
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| CN201910185261.8A CN111698746B (en) | 2019-03-12 | 2019-03-12 | Cell switching method and device |
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| CN201910185261.8A CN111698746B (en) | 2019-03-12 | 2019-03-12 | Cell switching method and device |
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| CN114554533A (en) * | 2020-11-18 | 2022-05-27 | 中国电信股份有限公司 | Cell measurement method, shared carrier terminal, and computer-readable storage medium |
| CN113473546A (en) * | 2021-07-15 | 2021-10-01 | 中国联合网络通信集团有限公司 | Terminal switching method, equipment and readable storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854682A (en) * | 2009-03-31 | 2010-10-06 | 华为技术有限公司 | Switching method and device |
| CN103200627A (en) * | 2012-01-04 | 2013-07-10 | 中兴通讯股份有限公司 | Method for eliminating reconstructing conflicts in switching process and mobile terminal |
| CN106470058A (en) * | 2015-08-20 | 2017-03-01 | 北京大学 | The switching method and apparatus of transmission mode in a kind of Long Term Evolution LTE |
| CN108076475A (en) * | 2016-11-17 | 2018-05-25 | 中国移动通信有限公司研究院 | A kind of data processing method and server |
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| EP3057372A4 (en) * | 2013-10-31 | 2016-10-05 | Huawei Tech Co Ltd | Method, device and system for processing radio link failure report |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854682A (en) * | 2009-03-31 | 2010-10-06 | 华为技术有限公司 | Switching method and device |
| CN103200627A (en) * | 2012-01-04 | 2013-07-10 | 中兴通讯股份有限公司 | Method for eliminating reconstructing conflicts in switching process and mobile terminal |
| CN106470058A (en) * | 2015-08-20 | 2017-03-01 | 北京大学 | The switching method and apparatus of transmission mode in a kind of Long Term Evolution LTE |
| CN108076475A (en) * | 2016-11-17 | 2018-05-25 | 中国移动通信有限公司研究院 | A kind of data processing method and server |
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