CN113473548A - Terminal side same-frequency switching optimization method and device - Google Patents
Terminal side same-frequency switching optimization method and device Download PDFInfo
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- CN113473548A CN113473548A CN202010239158.XA CN202010239158A CN113473548A CN 113473548 A CN113473548 A CN 113473548A CN 202010239158 A CN202010239158 A CN 202010239158A CN 113473548 A CN113473548 A CN 113473548A
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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
- H04W36/0055—Transmission or use of information for re-establishing the radio link
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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
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
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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
Abstract
The invention provides a terminal side same-frequency switching optimization method and a device, wherein the method comprises the following steps: after the terminal is converted from an idle state to a connected state, receiving measurement configuration of same-frequency switching sent by a serving cell; the measurement configuration comprises a switching frequency judgment timer, a switching frequency judgment counter and a same-frequency switching time hysteresis coefficient; starting a switching frequency judgment timer, and recording the same-frequency switching times of the terminal by using a switching frequency judgment counter; if the same-frequency switching frequency reaches the threshold of the switching frequency judgment counter before the switching frequency judgment timer is overtime, generating new A3 event trigger time according to the same-frequency switching time delay coefficient; and if the A3 event triggering condition of the co-frequency switching of the terminal is always met within the new A3 event triggering time, reporting an A3 measurement report of the co-frequency switching of the terminal so as to switch to the target cell. The invention reduces the switching frequency of the terminal and improves the problems of low initial coding, pit dropping at the rate and the like after high-frequency switching.
Description
Technical Field
The invention belongs to the technical field of wireless communication, and particularly relates to a terminal side same-frequency switching optimization method and device.
Background
LTE (Long Term Evolution ) co-frequency mobility management is implemented by coverage-based co-frequency handover. The same-frequency switching mainly comprises four processes of measurement, triggering, judgment and execution.
Under the condition that a coverage-based same-frequency switching characteristic is opened, when a User Equipment (UE) establishes a Radio bearer, an eNodeB sends a Radio Resource Control (RRC) Connection ReConfiguration message to the UE, wherein the RRC Connection ReConfiguration message contains related configuration of same-frequency measurement, and the UE executes the related measurement according to the related configuration of the same-frequency measurement. And generating a switching target cell list according to the measurement result. The same frequency handover is then triggered by an a3 event trigger condition. The handover decision is controlled and executed by the eNodeB and is the process of making an evaluation decision on the target cell list. Finally, the eNodeB controls the handover of the UE from the serving cell to the target cell.
And the UE measures the cells in the measurement range on the corresponding frequency point according to the measurement configuration information provided by the eNodeB. The measurement report is in the form of a3 report. The trigger condition of the A3 event is Mn + Ofn + Ocn-Hys > Ms + Ofs + Ocs + Off. Wherein Mn is a measurement result of the neighboring cell, Ofn is a specific frequency offset of the pilot frequency, Ocn is a specific cell offset of the neighboring cell, Ms is a measurement result of the serving cell, Ofs is a specific frequency offset of the serving cell, Ocs is a specific cell offset of the serving cell, and off is an event offset parameter. When the event A3 is triggered, the eNodeB receives the event A3 reported by the UE, and makes a switching decision on the reported target cell list. The cancellation condition for the a3 event is Mn + Ofn + Ocn + Hys < Ms + Ofs + Ocs + Off. When the A3 event is cancelled, the UE no longer reports the A3 event.
The existing common-frequency switching method is completely reported according to an A3 measurement report mode, and the principle of the A3 report is mainly based on that the level intensity of an adjacent cell relative to a service cell in a certain time period is stronger than a threshold value. This may cause high-level and high-frequency handover, such as ping-pong handover, multi-cell handover, etc., of the terminal in some areas with complex network structures, under the condition that the level strength is still sufficient. High frequency switching in a short time will result in low initial coding after switching, frequent pit dropping at a rate, etc.
Disclosure of Invention
In order to overcome the problem that the existing common-frequency switching method has the phenomena of low initial coding after high-frequency switching, frequent pit dropping at a rate and the like or at least partially solve the problem, the embodiment of the invention provides a terminal side common-frequency switching optimization method and device.
According to a first aspect of the embodiments of the present invention, a terminal side same frequency handover optimization method is provided, including:
after the terminal is converted from an idle state to a connected state, receiving measurement configuration of same-frequency switching sent by a serving cell; the measurement configuration comprises a switching frequency judgment timer, a switching frequency judgment counter and a same-frequency switching time hysteresis coefficient;
starting the switching frequency judgment timer, and recording the same-frequency switching times of the terminal by using the switching frequency judgment counter;
if the co-frequency switching times reach the threshold of the switching frequency judgment counter before the switching frequency judgment timer is overtime, multiplying the A3 event triggering time of the co-frequency switching of the terminal by the co-frequency switching time hysteresis coefficient to generate a new A3 event triggering time;
and if the A3 event triggering condition of the co-frequency switching of the terminal is always met within the new A3 event triggering time, reporting an A3 measurement report of the co-frequency switching of the terminal so that the serving cell can make switching judgment on a target cell in the A3 measurement report and switch to the target cell according to a switching judgment result.
Specifically, the measurement configuration further includes a high-frequency switching state high-level judgment value and a switching frequency execution strength offset;
correspondingly, the step of recording the co-frequency switching times of the terminal by using the switching frequency judgment counter further comprises the following steps:
if the same-frequency switching times reach the threshold of the switching frequency judgment counter before the switching frequency judgment timer is overtime, comparing the level intensity of the service cell with the high-frequency switching state high level judgment value;
if the level intensity is greater than the high-frequency handover state high level judgment value, increasing the handover frequency execution intensity bias to a preset cell bias of a serving cell in the A3 event triggering condition, and generating a new A3 event triggering condition;
reporting the A3 measurement report if the new A3 event trigger condition is always met within the new A3 event trigger time.
Specifically, the measurement configuration further comprises a high-frequency switch state penalty timer;
correspondingly, the step of recording the co-frequency switching times of the terminal by using the switching frequency judgment counter further comprises the following steps:
if the same-frequency switching times reach the threshold of the switching frequency judgment counter before the switching frequency judgment timer is overtime, stopping the switching frequency judgment timer and starting the high-frequency switching state punishment timer;
correspondingly, if the level strength is greater than the high-frequency handover state high level judgment value, the step of increasing the handover frequency execution strength offset to the preset cell offset of the serving cell in the a3 event triggering condition specifically includes:
if the level strength is greater than the high-frequency handover state high level judgment value, before the high-frequency handover state penalty timer is overtime, the handover frequency execution strength offset is increased to a preset cell offset of a serving cell in the a3 event triggering condition.
Specifically, the step of adding the handover frequency execution strength offset to the preset cell offset of the serving cell in the A3 event trigger condition, and generating a new A3 event trigger condition further includes:
if the new A3 event triggering condition is not met before the high-frequency switching state punishment timer is overtime, restarting the switching frequency judgment timer for timing after the high-frequency switching state punishment timer is overtime, and recording the same-frequency switching times of the terminal again;
after the step of comparing the level strength of the serving cell with the high-frequency handover state high-level judgment value, the method further includes:
if the level intensity of the serving cell is less than or equal to the high-frequency handover state high-level judgment value, judging whether the high-frequency handover state penalty timer meets the A3 event triggering condition before timeout;
if not, after the high-frequency switching state punishment timer is overtime, the switching frequency judgment timer is restarted for timing, and the same-frequency switching times of the terminal are recorded again.
Specifically, the step of recording the number of times of same-frequency switching of the terminal by using the switching frequency judgment counter further includes:
if the same-frequency switching times do not reach the threshold of the switching frequency judgment counter before the switching frequency judgment timer is overtime, the switching frequency judgment timer is restarted to time after the switching frequency judgment timer is overtime, and the same-frequency switching times of the terminal are recorded again.
Specifically, the method further comprises the following steps:
if the terminal receives the network indication of the serving cell to enter an idle state during the timing period of the handover frequency judgment timer and the high frequency handover state penalty timer, the handover frequency judgment timer and the high frequency handover state penalty timer terminate timing, and the handover frequency judgment counter terminates counting.
Specifically, the step of switching to the target cell according to the switching decision result further includes:
receiving a new measurement configuration for same-frequency switching;
if the new measurement configuration is consistent with the measurement configuration sent by the serving cell, continuing to operate a switching frequency judgment timer, a switching frequency judgment counter and a high-frequency switching state penalty timer in the measurement configuration sent by the serving cell;
if the new measurement configuration is inconsistent with the measurement configuration sent by the serving cell, the operation of a switching frequency judgment timer, a switching frequency judgment counter and a high-frequency switching state penalty timer in the measurement configuration sent by the serving cell is terminated, and the switching frequency judgment timer, the switching frequency judgment counter and the high-frequency switching state penalty timer in the new measurement configuration are started.
According to a second aspect of the embodiments of the present invention, there is provided a terminal side same-frequency switching optimization apparatus, including:
the receiving module is used for receiving the measurement configuration of the same-frequency switching sent by the serving cell after the terminal is converted from the idle state to the connected state; the measurement configuration comprises a switching frequency judgment timer, a switching frequency judgment counter and a same-frequency switching time hysteresis coefficient;
the timing module is used for starting the switching frequency judgment timer and recording the same-frequency switching times of the terminal by using the switching frequency judgment counter;
a generating module, configured to multiply an A3 event trigger time of co-frequency switching of the terminal by the co-frequency switching time hysteresis coefficient to generate a new A3 event trigger time if the co-frequency switching times reach a threshold of the switching frequency determination counter before the switching frequency determination timer expires;
and a switching module, configured to report an A3 measurement report of the co-frequency handover of the terminal if an A3 event trigger condition of the co-frequency handover of the terminal is always met within the new A3 event trigger time, so that the serving cell performs a handover decision on a target cell in the A3 measurement report, and switches to the target cell according to a handover decision result.
According to a third aspect of the embodiments of the present invention, there is also provided an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor invokes the program instruction to execute the method for optimizing terminal-side co-frequency handover provided in any one of the various possible implementations of the first aspect.
According to a fourth aspect of the embodiments of the present invention, there is further provided a non-transitory computer-readable storage medium, where the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions enable the computer to execute the terminal-side same-frequency handover optimization method provided in any one of the various possible implementation manners of the first aspect.
The embodiment of the invention provides a terminal side same-frequency switching optimization method and device, the method comprises the steps of adding a switching frequency judgment timer, a switching frequency judgment counter and a same-frequency switching time hysteresis coefficient in a measurement configuration of same-frequency switching, judging whether a terminal is in a high-frequency switching state or not by the terminal through the switching frequency judgment timer and the switching frequency judgment counter, increasing the time hysteresis of the same-frequency switching by using the same-frequency switching time hysteresis coefficient under the condition that the terminal is in the high-frequency switching state, improving the reporting difficulty of an A3 measurement report, reducing the switching frequency of a high-frequency switching terminal, improving the problems of starting low codes, rate pit dropping and the like after the high-frequency switching, and improving the user experience.
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 flow chart of a terminal side same-frequency handover optimization method provided in an embodiment of the present invention;
fig. 2 is a schematic diagram of a same-frequency switching time lag in the terminal-side same-frequency switching optimization method provided in the embodiment of the present invention;
fig. 3 is a schematic view of a complete flow in a terminal-side same-frequency handover optimization method provided in the embodiment of the present invention;
fig. 4 is a schematic structural diagram of a terminal-side same-frequency switching optimization device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
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.
In an embodiment of the present invention, a terminal side common-frequency handover optimization method is provided, and fig. 1 is a schematic flow chart of the terminal side common-frequency handover optimization method provided in the embodiment of the present invention, where the method includes: s101, after a terminal is converted from an idle state to a connected state, receiving measurement configuration of same-frequency switching sent by a serving cell; the measurement configuration comprises a switching frequency judgment timer, a switching frequency judgment counter and a same-frequency switching time hysteresis coefficient;
the serving cell is a serving cell in which the terminal is located. After the terminal is converted from idle RRC-idle to connected RRC-connect, the terminal receives RRC Connection ReConfiguration message sent by the service cell, and the message contains measurement configuration related to co-frequency switching. In this embodiment, a frequency change judgment timer, a switching frequency judgment counter, and a same-frequency switching time hysteresis coefficient are added in the measurement configuration. These fields can be added in the measurement configuration by means of measObjectEUTRA in the measurement configuration message RRC Connection ReConfiguration on the network side. The switching frequency judging timer and the switching frequency judging counter are jointly used for judging whether the terminal belongs to a high-frequency switching state or not. The same-frequency switching Time lag coefficient is an action coefficient of A3 event Trigger Time Time To Trigger for terminal same-frequency switching.
The switching frequency judging timer, the switching frequency judging counter and the same-frequency switching time hysteresis coefficient can be set individually according to the wireless environment scene. For example, the unit of the switching frequency judging timer is set to be second, the unit value is 20 seconds, the default is set to be 3, the actual meaning is 60 seconds, the selectable range is 1 to 8, namely 20 seconds to 160 seconds, and 3bit space is occupied. The unit of the switching frequency judgment counter is set as times, the unit value is set as 1 time, the threshold is set as 5 times by default, the selectable range is 1 to 8, namely 1 time to 8 times, and 3bit space is occupied. The same-frequency switching time lag coefficient has no unit, the unit value is 1 time, the default is set to be 2, the actual meaning is 2 times, the selectable range is 1 to 4, and 2bit space is occupied.
S102, starting the switching frequency judgment timer, and recording the same-frequency switching times of the terminal by using the switching frequency judgment counter;
and after receiving the measurement configuration, the terminal immediately starts a switching frequency judgment timer. And before the switching frequency judging timer is overtime, the switching frequency judging counter is used for recording the co-frequency switching times of the terminal.
S103, if the co-frequency switching times reach the threshold of the switching frequency judgment counter before the switching frequency judgment timer is overtime, multiplying the A3 event triggering time of the co-frequency switching of the terminal by the co-frequency switching time lag coefficient to generate a new A3 event triggering time;
before the terminal judges that the switching frequency judging timer is overtime, whether the same-frequency switching frequency reaches the threshold of the switching frequency judging counter or not is judged. If the Time delay coefficient reaches the preset Time delay coefficient, the terminal is in a high-frequency switching state, and the A3 event Trigger Time Time To Trigger is changed into a Time To Trigger and the same-frequency switching Time delay coefficient, so that the same-frequency switching Time of the terminal is delayed. A schematic diagram of on-channel switching time lag is shown in fig. 2. Reference Signal Receiving quality (rsrq) in fig. 2 indicates reference Signal Receiving quality, and reference Signal Receiving power (rsrp) indicates reference Signal Receiving power.
And S104, if the A3 event triggering condition of the co-frequency switching of the terminal is always met within the new A3 event triggering time, reporting an A3 measurement report of the co-frequency switching of the terminal, so that the serving cell can make switching judgment on a target cell in the A3 measurement report, and switching to the target cell according to a switching judgment result.
And after the terminal is switched to the target cell according to the switching judgment result, receiving a measurement configuration message RRC Connection ReConfiguration of the target cell about same-frequency switching, and taking the target cell as a new service cell to iteratively execute the steps S101 to S104.
In the embodiment, the switching frequency judgment timer, the switching frequency judgment counter and the same-frequency switching time hysteresis coefficient are newly added in the measurement configuration of same-frequency switching, the terminal adopts the switching frequency judgment timer and the switching frequency judgment counter to autonomously judge whether the terminal is in a high-frequency switching state, and under the condition that the terminal is in the high-frequency switching state, the same-frequency switching time hysteresis coefficient is used to increase the time hysteresis of same-frequency switching, so that the difficulty of reporting an A3 measurement report is improved, the switching frequency of a high-frequency switching terminal is reduced, the problems of low initial coding, rate pit falling and the like after high-frequency switching are improved, and the user experience is improved.
On the basis of the above embodiment, the measurement configuration in this embodiment further includes a high-frequency switching state high-level judgment value and a switching frequency execution strength offset;
the high-frequency switching state high-level judgment value is a threshold used for judging whether the terminal is in a high-level high-frequency switching state, and the switching frequency execution strength bias is used for changing the preset cell bias of the serving cell. The high-frequency switching state high-level judgment value and the switching frequency execution strength bias can be set individually according to wireless environment scenes. For example, the unit of the high-frequency switching state high level judgment value is dbm, the actual value obtained by subtracting 140 from the value is 40 by default, the actual value is 40-140-100 dbm, the selectable range is 33-64, and 5-bit space is occupied. The unit of the switching frequency execution intensity bias is set to be dB, the unit value is 2dB, the default value is 2, the actual meaning is 4dB, the selectable range is 1-4, namely 2 dB-8 dB, and 2bit space is occupied.
Correspondingly, the step of recording the co-frequency switching times of the terminal by using the switching frequency judgment counter further comprises the following steps: if the same-frequency switching times reach the threshold of the switching frequency judgment counter before the switching frequency judgment timer is overtime, comparing the level intensity of the service cell with the high-frequency switching state high level judgment value; if the level intensity is greater than the high-frequency handover state high level judgment value, increasing the handover frequency execution intensity bias to a preset cell bias of a serving cell in the A3 event triggering condition, and generating a new A3 event triggering condition; reporting the A3 measurement report if the new A3 event trigger condition is always met within the new A3 event trigger time.
Specifically, when the terminal is judged and known to be in the high-frequency switching state, the serving cell of the terminal is continuously judged, and if the level strength of the main serving cell is greater than the high-frequency switching state high-level judgment value, if so, the terminal is in the high-level high-frequency switching state. The switching frequency execution strength bias is added to Ocs in the A3 event trigger condition, and a new A3 event trigger condition is generated as Mn + Ofn + Ocn-Hys > Ms + Ofs + (Ocs + switching frequency execution strength bias) + Off. Reporting an A3 measurement report if the new A3 eventing condition is always met within the new A3 eventing time.
If the level intensity is less than or equal to the high-frequency switching state high-level judgment value, the terminal is informed of being in the low-level high-frequency switching state, the A3 event triggering condition is kept unchanged, and only the A3 event triggering time is changed.
In this embodiment, whether a high-frequency handover terminal is in a high-level high-frequency handover state is determined by combining a high-frequency handover terminal with a level intensity of a main serving cell of the terminal, and when the terminal is in the high-level high-frequency handover state, an intensity offset is executed by using a handover frequency to increase a handover offset, and a same-frequency handover time lag coefficient is used to increase a same-frequency handover time lag; when the terminal is in a low-level high-frequency switching state, the same-frequency switching time lag coefficient is used for increasing the same-frequency switching time lag, so that the reporting difficulty of an A3 measurement report is improved on the premise of ensuring the stable quality of an adjacent cell, the switching frequency of the high-frequency switching terminal is reduced, the problems of low initial coding, rate pit dropping and the like after high-frequency switching are solved, and the user experience is improved; in addition, the whole same-frequency switching optimization process is finished by the terminal independently without network side processing.
On the basis of the foregoing embodiment, in this embodiment, the measurement configuration further includes a high-frequency handover state penalty timer;
and carrying out personalized setting on the high-frequency switching state penalty timer according to the wireless environment scene. For example, the unit of the high-frequency switch state penalty timer is set to be second, the unit value is 10 seconds, the default is set to be 3, the actual meaning is 30 seconds, the selectable range is 1-8, namely 10 seconds-80 seconds, and 3bit space is occupied.
Correspondingly, the step of recording the co-frequency switching times of the terminal by using the switching frequency judgment counter further comprises the following steps: if the same-frequency switching times reach the threshold of the switching frequency judgment counter before the switching frequency judgment timer is overtime, stopping the switching frequency judgment timer and starting the high-frequency switching state punishment timer;
correspondingly, if the level strength is greater than the high-frequency handover state high level judgment value, the step of increasing the handover frequency execution strength offset to the preset cell offset of the serving cell in the a3 event triggering condition specifically includes: if the level strength is greater than the high-frequency handover state high level judgment value, before the high-frequency handover state penalty timer is overtime, the handover frequency execution strength offset is increased to a preset cell offset of a serving cell in the a3 event triggering condition.
On the basis of the foregoing embodiment, in this embodiment, the step of adding the handover frequency execution strength offset to the preset cell offset of the serving cell in the A3 event trigger condition, and generating a new A3 event trigger condition further includes: if the new A3 event triggering condition is not met before the high-frequency switching state punishment timer is overtime, restarting the switching frequency judgment timer for timing after the high-frequency switching state punishment timer is overtime, and recording the same-frequency switching times of the terminal again; after the step of comparing the level strength of the serving cell with the high-frequency handover state high-level judgment value, the method further includes: if the level intensity of the serving cell is less than or equal to the high-frequency handover state high-level judgment value, judging whether the high-frequency handover state penalty timer meets the A3 event triggering condition before timeout; if not, after the high-frequency switching state punishment timer is overtime, the switching frequency judgment timer is restarted for timing, and the same-frequency switching times of the terminal are recorded again.
Specifically, if the A3 event triggering condition in the above two cases, that is, the new A3 event triggering condition generated when the level strength of the serving cell is greater than the high frequency handover state high level determination value and the original A3 event triggering condition generated when the level strength of the serving cell is less than or the high frequency handover state high level determination value, is not satisfied before the high frequency handover state penalty timer expires, the handover frequency determination timer is restarted to count the time after the high frequency handover state penalty timer expires, and steps S101 to S104 are continuously executed.
On the basis of the foregoing embodiment, in this embodiment, after the step of recording the number of times of intra-frequency handover of the terminal by using the handover frequency judgment counter, the method further includes: if the same-frequency switching times do not reach the threshold of the switching frequency judgment counter before the switching frequency judgment timer is overtime, the switching frequency judgment timer is restarted to time after the switching frequency judgment timer is overtime, and the same-frequency switching times of the terminal are recorded again.
Specifically, if the same-frequency switching times do not reach the threshold of the switching frequency judgment counter before the switching frequency judgment timer is overtime, it indicates that the terminal belongs to the low-frequency switching state. After the switching frequency judgment timer is over, the switching frequency judgment timer is restarted for counting, and the steps S101 to S104 are continuously executed.
On the basis of the above embodiments, the present embodiment further includes: if the terminal receives the network indication of the serving cell to enter an idle state during the timing period of the handover frequency judgment timer and the high frequency handover state penalty timer, the handover frequency judgment timer and the high frequency handover state penalty timer terminate timing, and the handover frequency judgment counter terminates counting. And returning to the step S101 when the terminal enters the connected RRC-connec next time.
On the basis of the above embodiments, the present embodiment further includes: receiving a new measurement configuration for same-frequency switching; if the new measurement configuration is consistent with the measurement configuration sent by the serving cell, continuing to operate a switching frequency judgment timer, a switching frequency judgment counter and a high-frequency switching state penalty timer in the measurement configuration sent by the serving cell; if the new measurement configuration is inconsistent with the measurement configuration sent by the serving cell, the operation of a switching frequency judgment timer, a switching frequency judgment counter and a high-frequency switching state penalty timer in the measurement configuration sent by the serving cell is terminated, and the switching frequency judgment timer, the switching frequency judgment counter and the high-frequency switching state penalty timer in the new measurement configuration are started.
Specifically, after the terminal is converted from an idle state RRC-idle to a connected state RRC-connect, and after receiving a measurement configuration of co-frequency switching sent by a serving cell, the terminal keeps executing the measurement configuration according to the measurement configuration cycle while maintaining the connected state RRC-connect, and once switching occurs or a new measurement configuration received due to other reasons is inconsistent with a measurement configuration sent by the serving cell stored by the terminal, the terminal stops running of a switching frequency judgment timer, a switching frequency judgment counter, and a high-frequency switching state penalty timer in the measurement configuration sent by the serving cell, and starts the switching frequency judgment timer, the switching frequency judgment counter, and the high-frequency switching state penalty timer in the new measurement configuration. If the new measurement configuration is consistent with the measurement configuration sent by the serving cell and stored by the terminal, the handover frequency judgment timer, the handover frequency judgment counter, and the high frequency handover state penalty timer in the measurement configuration sent by the serving cell continue to run, as shown in fig. 3.
In another embodiment of the present invention, a terminal-side same-frequency handover optimization apparatus is provided, which is used to implement the methods in the foregoing embodiments. Therefore, the description and definition in each embodiment of the terminal-side co-frequency handover optimization method can be used for understanding each execution module in the embodiment of the present invention. Fig. 4 is a schematic structural diagram of a terminal-side same-frequency switching optimization apparatus provided in an embodiment of the present invention, where the apparatus includes a receiving module 401, a timing module 402, a generating module 403, and a switching module 404, where:
the receiving module 401 is configured to receive measurement configuration of same-frequency handover sent by a serving cell after the terminal is switched from the idle state to the connected state; the measurement configuration comprises a switching frequency judgment timer, a switching frequency judgment counter and a same-frequency switching time hysteresis coefficient;
the timing module 402 is configured to start the switching frequency judgment timer, and record the co-frequency switching times of the terminal by using the switching frequency judgment counter;
the generating module 403 is configured to, if the co-frequency switching frequency reaches the threshold of the switching frequency determination counter before the switching frequency determination timer expires, multiply the co-frequency switching time lag coefficient by the A3 event trigger time of co-frequency switching of the terminal, and generate a new A3 event trigger time;
the switching module 404 is configured to report an A3 measurement report of the co-frequency handover of the terminal if an A3 event triggering condition of the co-frequency handover of the terminal is always met within the new A3 event triggering time, so that the serving cell performs a handover decision on a target cell in the A3 measurement report, and switches to the target cell according to a handover decision result.
In the embodiment, the switching frequency judgment timer, the switching frequency judgment counter and the same-frequency switching time hysteresis coefficient are newly added in the measurement configuration of same-frequency switching, the terminal adopts the switching frequency judgment timer and the switching frequency judgment counter to autonomously judge whether the terminal is in a high-frequency switching state, and under the condition that the terminal is in the high-frequency switching state, the same-frequency switching time hysteresis coefficient is used to increase the time hysteresis of same-frequency switching, so that the difficulty of reporting an A3 measurement report is improved, the switching frequency of a high-frequency switching terminal is reduced, the problems of low initial coding, rate pit falling and the like after high-frequency switching are improved, and the user experience is improved.
Fig. 5 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 5: a processor (processor)501, a communication Interface (Communications Interface)502, a memory (memory)503, and a communication bus 504, wherein the processor 501, the communication Interface 502, and the memory 503 are configured to communicate with each other via the communication bus 504. The processor 501 may call logic instructions in the memory 503 to perform the following method: after the terminal is converted from an idle state to a connected state, receiving measurement configuration of same-frequency switching sent by a serving cell; the measurement configuration comprises a switching frequency judgment timer, a switching frequency judgment counter and a same-frequency switching time hysteresis coefficient; starting a switching frequency judgment timer, and recording the same-frequency switching times of the terminal by using a switching frequency judgment counter; if the same-frequency switching frequency reaches the threshold of the switching frequency judgment counter before the switching frequency judgment timer is overtime, generating new A3 event trigger time according to the same-frequency switching time delay coefficient; and if the A3 event triggering condition of the co-frequency switching of the terminal is always met within the new A3 event triggering time, reporting an A3 measurement report of the co-frequency switching of the terminal so as to switch to the target cell.
In addition, the logic instructions in the memory 503 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.
The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause a computer to perform the methods provided by the above method embodiments, for example, including: after the terminal is converted from an idle state to a connected state, receiving measurement configuration of same-frequency switching sent by a serving cell; the measurement configuration comprises a switching frequency judgment timer, a switching frequency judgment counter and a same-frequency switching time hysteresis coefficient; starting a switching frequency judgment timer, and recording the same-frequency switching times of the terminal by using a switching frequency judgment counter; if the same-frequency switching frequency reaches the threshold of the switching frequency judgment counter before the switching frequency judgment timer is overtime, generating new A3 event trigger time according to the same-frequency switching time delay coefficient; and if the A3 event triggering condition of the co-frequency switching of the terminal is always met within the new A3 event triggering time, reporting an A3 measurement report of the co-frequency switching of the terminal so as to switch to the target cell.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
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.
Claims (10)
1. A terminal side same-frequency switching optimization method is characterized by comprising the following steps:
after the terminal is converted from an idle state to a connected state, receiving measurement configuration of same-frequency switching sent by a serving cell; the measurement configuration comprises a switching frequency judgment timer, a switching frequency judgment counter and a same-frequency switching time hysteresis coefficient;
starting the switching frequency judgment timer, and recording the same-frequency switching times of the terminal by using the switching frequency judgment counter;
if the co-frequency switching times reach the threshold of the switching frequency judgment counter before the switching frequency judgment timer is overtime, multiplying the A3 event triggering time of the co-frequency switching of the terminal by the co-frequency switching time hysteresis coefficient to generate a new A3 event triggering time;
and if the A3 event triggering condition of the co-frequency switching of the terminal is always met within the new A3 event triggering time, reporting an A3 measurement report of the co-frequency switching of the terminal so that the serving cell can make switching judgment on a target cell in the A3 measurement report and switch to the target cell according to a switching judgment result.
2. The terminal side same-frequency switching optimization method according to claim 1, wherein the measurement configuration further includes a high-frequency switching state high-level judgment value and a switching frequency execution intensity bias;
correspondingly, the step of recording the co-frequency switching times of the terminal by using the switching frequency judgment counter further comprises the following steps:
if the same-frequency switching times reach the threshold of the switching frequency judgment counter before the switching frequency judgment timer is overtime, comparing the level intensity of the service cell with the high-frequency switching state high level judgment value;
if the level intensity is greater than the high-frequency handover state high level judgment value, increasing the handover frequency execution intensity bias to a preset cell bias of a serving cell in the A3 event triggering condition, and generating a new A3 event triggering condition;
reporting the A3 measurement report if the new A3 event trigger condition is always met within the new A3 event trigger time.
3. The terminal side same-frequency switching optimization method according to claim 2, wherein the measurement configuration further includes a high-frequency switching state penalty timer;
correspondingly, the step of recording the co-frequency switching times of the terminal by using the switching frequency judgment counter further comprises the following steps:
if the same-frequency switching times reach the threshold of the switching frequency judgment counter before the switching frequency judgment timer is overtime, stopping the switching frequency judgment timer and starting the high-frequency switching state punishment timer;
correspondingly, if the level strength is greater than the high-frequency handover state high level judgment value, the step of increasing the handover frequency execution strength offset to the preset cell offset of the serving cell in the a3 event triggering condition specifically includes:
if the level strength is greater than the high-frequency handover state high level judgment value, before the high-frequency handover state penalty timer is overtime, the handover frequency execution strength offset is increased to a preset cell offset of a serving cell in the a3 event triggering condition.
4. The method according to claim 3, wherein the step of adding the handover frequency execution strength offset to a preset cell offset of a serving cell in the A3 event trigger condition and generating a new A3 event trigger condition further comprises:
if the new A3 event triggering condition is not met before the high-frequency switching state punishment timer is overtime, restarting the switching frequency judgment timer for timing after the high-frequency switching state punishment timer is overtime, and recording the same-frequency switching times of the terminal again;
after the step of comparing the level strength of the serving cell with the high-frequency handover state high-level judgment value, the method further includes:
if the level intensity of the serving cell is less than or equal to the high-frequency handover state high-level judgment value, judging whether the high-frequency handover state penalty timer meets the A3 event triggering condition before timeout;
if not, after the high-frequency switching state punishment timer is overtime, the switching frequency judgment timer is restarted for timing, and the same-frequency switching times of the terminal are recorded again.
5. The method according to claim 1, wherein the step of recording the co-frequency switching times of the terminal by using the switching frequency judgment counter further comprises:
if the same-frequency switching times do not reach the threshold of the switching frequency judgment counter before the switching frequency judgment timer is overtime, the switching frequency judgment timer is restarted to time after the switching frequency judgment timer is overtime, and the same-frequency switching times of the terminal are recorded again.
6. The terminal side same-frequency switching optimization method according to claim 3, further comprising:
if the terminal receives the network indication of the serving cell to enter an idle state during the timing period of the handover frequency judgment timer and the high frequency handover state penalty timer, the handover frequency judgment timer and the high frequency handover state penalty timer terminate timing, and the handover frequency judgment counter terminates counting.
7. The method for optimizing terminal-side co-frequency handover according to claim 3, wherein the step of switching to the target cell according to the handover decision result further comprises:
receiving a new measurement configuration for same-frequency switching;
if the new measurement configuration of the same-frequency switching is consistent with the measurement configuration sent by the serving cell, a switching frequency judgment timer, a switching frequency judgment counter and a high-frequency switching state punishment timer in the measurement configuration sent by the serving cell continue to operate;
if the new measurement configuration of the same-frequency switching is not consistent with the measurement configuration sent by the serving cell, the operation of a switching frequency judgment timer, a switching frequency judgment counter and a high-frequency switching state punishment timer in the measurement configuration sent by the serving cell is stopped, and the switching frequency judgment timer, the switching frequency judgment counter and the high-frequency switching state punishment timer in the new measurement configuration of the same-frequency switching are started.
8. A terminal side same-frequency switching optimization device is characterized by comprising:
the receiving module is used for receiving the measurement configuration of the same-frequency switching sent by the serving cell after the terminal is converted from the idle state to the connected state; the measurement configuration comprises a switching frequency judgment timer, a switching frequency judgment counter and a same-frequency switching time hysteresis coefficient;
the timing module is used for starting the switching frequency judgment timer and recording the same-frequency switching times of the terminal by using the switching frequency judgment counter;
a generating module, configured to multiply the A3 event trigger time of co-frequency switching of the terminal by the co-frequency switching time hysteresis coefficient to generate a new A3 event trigger time if the co-frequency switching times reach the threshold of the switching frequency determination counter before the switching frequency determination timer expires;
and a switching module, configured to report an A3 measurement report of the co-frequency handover of the terminal if an A3 event trigger condition of the co-frequency handover of the terminal is always met within the new A3 event trigger time, so that the serving cell performs a handover decision on a target cell in the A3 measurement report, and switches to the target cell according to a handover decision result.
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 implements the steps of the terminal-side same-frequency handover optimization method according to any one of claims 1 to 7 when executing the program.
10. A non-transitory computer readable storage medium having a computer program stored thereon, wherein the computer program when executed by a processor implements the steps of the terminal-side intra-frequency handover optimization method according to any one of claims 1 to 7.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109600806A (en) * | 2018-12-25 | 2019-04-09 | 深圳市万普拉斯科技有限公司 | Method for switching network, device, computer equipment and storage medium |
| CN109842900A (en) * | 2017-11-28 | 2019-06-04 | 大唐移动通信设备有限公司 | A kind of method and apparatus inhibiting pingpang handoff |
| CN110248388A (en) * | 2018-03-09 | 2019-09-17 | 中国移动通信集团设计院有限公司 | Penalty method after a kind of cell switching refusal |
| CN110602734A (en) * | 2019-10-30 | 2019-12-20 | Oppo（重庆）智能科技有限公司 | Cell switching method, device and computer readable storage medium |
-
2020
- 2020-03-30 CN CN202010239158.XA patent/CN113473548B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109842900A (en) * | 2017-11-28 | 2019-06-04 | 大唐移动通信设备有限公司 | A kind of method and apparatus inhibiting pingpang handoff |
| CN110248388A (en) * | 2018-03-09 | 2019-09-17 | 中国移动通信集团设计院有限公司 | Penalty method after a kind of cell switching refusal |
| CN109600806A (en) * | 2018-12-25 | 2019-04-09 | 深圳市万普拉斯科技有限公司 | Method for switching network, device, computer equipment and storage medium |
| CN110602734A (en) * | 2019-10-30 | 2019-12-20 | Oppo（重庆）智能科技有限公司 | Cell switching method, device and computer readable storage medium |
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