CN117135665A - Priority updating method and device for cell reselection, mobile terminal and storage medium - Google Patents

Priority updating method and device for cell reselection, mobile terminal and storage medium Download PDF

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Publication number
CN117135665A
CN117135665A CN202210555088.8A CN202210555088A CN117135665A CN 117135665 A CN117135665 A CN 117135665A CN 202210555088 A CN202210555088 A CN 202210555088A CN 117135665 A CN117135665 A CN 117135665A
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China
Prior art keywords
cell
priority list
signal
value
priority
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黄宏章
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Guangdong Genius Technology Co Ltd
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Guangdong Genius Technology Co Ltd
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Priority to CN202210555088.8A priority Critical patent/CN117135665A/en
Publication of CN117135665A publication Critical patent/CN117135665A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • 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
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • 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
    • H04W36/0085—Hand-off measurements
    • 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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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the application discloses a priority updating method and device for cell reselection, a mobile terminal and a storage medium, wherein the method comprises the following steps: receiving cell priority updating information sent by network equipment, wherein the cell priority updating information comprises a cell priority list and frequency point information corresponding to each cell in the cell priority list; measuring each cell according to the frequency point information to obtain corresponding cell signal information; analyzing the system information of each cell to obtain the minimum residence signal of each cell; according to the cell signal information and the minimum resident signal corresponding to each cell, the cells in the cell priority list are subjected to priority ordering again; the priority can be redefined according to the measurement result of the mobile terminal, so that a better cell can be selected during cell reselection, and the communication experience of the mobile terminal is improved.

Description

Priority updating method and device for cell reselection, mobile terminal and storage medium
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and apparatus for updating priority of cell reselection, a mobile terminal, and a storage medium.
Background
In a mobile communication system such as long term evolution (Long Term Evolution, LTE) and a fifth generation mobile communication technology (5th Generation Mobile Communication Technology,5G), cell reselection is mainly determined according to a cell priority and a cell signal strength provided by a base station. When the mobile terminal reselects the cell, the cell with high priority is preferentially measured, and if the signal strength of the cell is higher, the cell can be reselected for residence.
The cell priority is adjusted by the base station according to the load condition of the base station and the measurement information of the mobile terminal, so that the mobile terminal can conveniently select a cell with higher priority, but the cell with higher priority does not represent a cell which is the most suitable mobile terminal at the current position, and also can be a cell with poor signal-to-noise ratio (Signal Noise Ratio, SNR), and the cell with poor SNR is easy to decode or fails to synchronize with the base station, so that data receiving failure or paging failure is caused.
Disclosure of Invention
The embodiment of the invention discloses a priority updating method, a device, a mobile terminal and a storage medium for cell reselection, which can select a cell with higher quality during cell reselection by re-sequencing the priorities of cells in a cell priority list, so that the communication experience of the mobile terminal is improved.
The first aspect of the embodiment of the invention discloses a priority updating method for cell reselection, which can comprise the following steps:
receiving cell priority updating information sent by network equipment, wherein the cell priority updating information comprises a cell priority list and frequency point information corresponding to each cell in the cell priority list;
measuring each cell according to the frequency point information to obtain corresponding cell signal information;
analyzing the system information of each cell to obtain the minimum residence signal of each cell;
and re-sequencing the cell in the cell priority list according to the cell signal information and the minimum resident signal corresponding to each cell.
As an optional implementation manner, in the first aspect of the embodiment of the present invention, the cell signal information includes at least a reference signal received quality (Reference Signal Receiving Quality, RSRQ) value, a reference signal received power (Reference Signal Receiving Power, RSRP) value, and a signal-to-noise ratio SNR, and the re-prioritizing the cells in the cell priority list according to the cell signal information and the minimum resident signal corresponding to each cell includes:
Judging whether the minimum resident signal of each cell is smaller than a preset receiving level threshold value or not;
when the minimum resident signal is smaller than the preset receiving level threshold value, the priority of the corresponding cell in the cell priority list is reduced, and a first cell priority list is obtained;
judging whether the Srxlev value contained in the RSRP value corresponding to each cell in the first cell priority list is equal to the Srxlev value of the current service cell or not according to the S criterion of the cell access criterion;
when a cell with Srxlev value equal to the Srxlev value of the current service cell exists in the first cell priority list, reducing the priority of the corresponding cell in the first cell priority list, and obtaining a second cell priority list;
and according to the RSRQ value and the signal-to-noise ratio SNR of each cell in the second cell priority list, sequencing the priorities of each cell in the second cell priority list to obtain a third cell priority list.
As an optional implementation manner, in the first aspect of the embodiment of the present invention, the method further includes:
when there is no cell whose minimum resident signal is smaller than the preset receiving level threshold, acquiring the cell priority list as the first cell priority list, executing the S criterion according to the cell access criterion, and judging whether the Srxlev value contained in the RSRP value corresponding to each cell in the first cell priority list is equal to the Srxlev value of the current service cell;
And when no cell with Srxlev value equal to the Srxlev value of the current service cell exists in the first cell priority list, acquiring the first cell priority list as the second cell priority list, and executing the step of sequencing the priorities of the cells in the second cell priority list according to the RSRQ value and the signal-to-noise ratio SNR of the cells in the second cell priority list to acquire a third cell priority list.
As an optional implementation manner, in the first aspect of the embodiment of the present invention, before the analyzing the system message of each cell and obtaining the minimum residence signal of each cell, the method further includes:
determining at least one cell with the RSRP value larger than a signal strength threshold value from the cell priority list according to the RSRP values of the cells;
the analyzing the system information of each cell to obtain the minimum residence signal of each cell includes:
analyzing the system information of the at least one cell to obtain the minimum resident signal of the corresponding cell;
and re-sequencing the cell in the cell priority list according to the cell signal information and the minimum resident signal corresponding to each cell, including:
And re-prioritizing the at least one cell in the cell priority list according to the cell signal information of the at least one cell and the minimum camping signal.
As an optional implementation manner, in the first aspect of the embodiment of the present invention, after the re-prioritizing each cell in the cell priority list according to the cell signal information and the minimum resident signal corresponding to each cell, the method further includes:
selecting a target cell according to the reordered cell priority list;
and switching from the current serving cell to the target cell.
The second aspect of the embodiment of the invention discloses a priority updating device for cell reselection, which can comprise:
the receiving module is used for receiving cell priority updating information sent by the network equipment, wherein the cell priority updating information comprises a cell priority list and frequency point information corresponding to each cell in the cell priority list;
the measurement module is used for measuring each cell according to the frequency point information to obtain corresponding cell signal information;
the analysis module is used for analyzing the system information of each cell and acquiring the minimum residence signal of each cell;
And the sequencing module is used for sequencing the cells in the cell priority list again according to the cell signal information and the minimum resident signal corresponding to each cell.
As an optional implementation manner, in the second aspect of the embodiment of the present invention, the cell signal information includes at least a reference signal received quality RSRQ value, a reference signal received power RSRP value, and a signal-to-noise ratio SNR, and the ranking module includes:
a first judging sub-module, configured to judge whether the minimum residence signal of each cell is smaller than a preset receiving level threshold;
the sequencing sub-module is used for reducing the priority of the corresponding cell in the cell priority list when the cell with the minimum resident signal smaller than the preset receiving level threshold exists, and obtaining a first cell priority list;
a second judging sub-module, configured to judge, according to an S criterion of a cell access criterion, whether an Srxlev value included in the RSRP value corresponding to each cell in the first cell priority list is equal to an Srxlev value of a current serving cell;
the sorting sub-module is further configured to, when a cell whose Srxlev value is equal to the Srxlev value of the current serving cell exists in the first cell priority list, reduce the priority of the corresponding cell in the first cell priority list, and obtain a second cell priority list;
And the sequencing sub-module is further configured to prioritize each cell in the second cell priority list according to the RSRQ value and the signal-to-noise ratio SNR of each cell in the second cell priority list, and obtain a third cell priority list.
As an optional implementation manner, in the second aspect of the embodiment of the present invention, the sorting sub-module is further configured to, when there is no cell whose minimum residence signal is smaller than the preset reception level threshold, obtain the cell priority list as the first cell priority list, trigger to execute the S criterion according to the cell access criterion, and determine whether the Srxlev value included in the RSRP value corresponding to each cell in the first cell priority list is equal to the Srxlev value of the current serving cell;
and the sequencing sub-module is further configured to, when no cell with an Srxlev value equal to the Srxlev value of the current serving cell exists in the first cell priority list, acquire the first cell priority list as the second cell priority list, trigger execution of the step of sequencing each cell in the second cell priority list according to the RSRQ value and the signal-to-noise ratio SNR of each cell in the second cell priority list, and obtain a third cell priority list.
A third aspect of the embodiment of the present invention discloses a mobile terminal, which may include:
a memory storing executable program code;
a processor coupled to the memory;
the processor invokes the executable program code stored in the memory to execute a priority updating method for cell reselection disclosed in the first aspect of the embodiment of the present invention.
A fourth aspect of the embodiments of the present invention discloses a computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps of any of the methods of the first aspect of the embodiments of the present invention.
A fifth aspect of the embodiments of the present invention discloses a computer program product which, when run on a computer, causes the computer to perform part or all of the steps of any one of the methods of the first aspect.
A sixth aspect of the embodiments of the present invention discloses an application publishing platform for publishing a computer program product, wherein the computer program product, when run on a computer, causes the computer to perform part or all of the steps of any one of the methods of the first aspect.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
In the embodiment of the invention, a mobile terminal receives cell priority updating information sent by network equipment, wherein the cell priority updating information comprises a cell priority list and frequency point information corresponding to each cell in the cell priority list, the corresponding cell signal information is obtained by measuring each cell according to the frequency point information, after analyzing the system information of each cell, the minimum resident signal of each cell is obtained, and then the priority ordering is carried out on the cells in the cell priority list again according to the cell signal information and the minimum resident signal of each cell so as to update the priority order of the cells; therefore, by implementing the embodiment of the invention, the mobile terminal can measure the cells, reorder the original priorities of the cells provided by the network equipment according to the cell signal information and the minimum residence signal of the cells, redefine the priorities according to the measurement results, so that cells with higher quality can be selected during cell reselection, and the communication experience of the mobile terminal is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a diagram of a system architecture to which embodiments of the present invention are applied;
fig. 2 is a flow chart of a priority updating method for cell reselection according to an embodiment of the present invention;
fig. 3 is a flow chart of a priority updating method for cell reselection according to a second embodiment of the present invention;
fig. 4 is a flow chart of a priority updating method for cell reselection according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of a priority updating device for cell reselection according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a priority updating device for cell reselection according to a second embodiment of the present invention;
fig. 7 is a schematic structural diagram of a priority updating device for cell reselection according to a third embodiment of the present invention;
fig. 8 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that the terms "first," "second," "third," and "fourth," etc. in the description and claims of the present invention are used for distinguishing between different objects and not for describing a particular sequential order. The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
RSRP is one of the key parameters that can represent the radio signal strength and the physical layer measurement requirements in an LTE network, and is the average value of the signal power received on all REs (resource elements) that carry reference signals within a certain symbol. The value range is usually-44 to-140 dBm, and the larger the value is, the better the value is. The Srxlev value is a relevant measurement for evaluating RSRP.
RSRQ represents reference signal reception quality in an LTE network, and achieves the effect of combining signal strength and interference reporting in an efficient manner, reflecting and indicating the signal-to-noise ratio and interference level of the current channel quality.
SNR, which is the ratio between the level of a useful signal measured under specified conditions and the level of electromagnetic noise, is expressed in decibels (dB), and generally the larger the value, the better.
Referring to fig. 1, fig. 1 is a system architecture diagram according to an embodiment of the present invention. The system architecture may include a network device and a mobile terminal. The network device may further include an access network device and a core network device. I.e. the wireless communication system further comprises a plurality of core networks for communicating with the access network devices. The access network device may be an LTE system, a next-generation (NR) system, or an evolved base station (evolutional node B, abbreviated as eNB or e-NodeB) macro base station, micro base station (also referred to as "small base station"), pico base station, access Point (AP), transmission point (transmission point, TP), or new generation base station (new generation Node B, gnob) in an licensed assisted access long term evolution (LAA-LTE) system. The network device may also be a future 5G communication system or other type of network device in a future evolution network.
The mobile terminal in the embodiment of the present invention may be referred to as a User Equipment (UE). The mobile terminal may be a personal communication service (personal communication service, PCS) phone, cordless phone, session initiation protocol (session initiation protocol, SIP) phone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA) or the like, or a handset, mobile Station (MS), mobile terminal (mobile terminal), laptop or the like, which may communicate with one or more core networks via a radio access network (radio access network, RAN). For example, the mobile terminal may be a mobile telephone (or "cellular" telephone) or a computer or the like having a mobile terminal, e.g., a portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile device that exchanges voice and/or data with the radio access network. The mobile terminal may also be a handheld device, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, a mobile terminal in a future 5G network or a mobile terminal in a future evolving network, etc. with wireless communication capabilities. The above is merely an example, and the practical application is not limited thereto.
Referring to fig. 2, fig. 2 is a flow chart of a method for updating priority of cell reselection according to an embodiment of the present invention; as shown in fig. 2, the method for updating the priority of the cell reselection may include:
201. and receiving cell priority updating information sent by the network equipment, wherein the cell priority updating information comprises a cell priority list and frequency point information corresponding to each cell in the cell priority list.
The execution main body of the embodiment of the invention is a mobile terminal.
The network device, such as a base station, updates the cell priority according to the load condition of the network device and measurement information reported by the mobile terminal, and then issues cell priority update information to the mobile terminal, where the cell priority update information includes a cell priority list and frequency point information corresponding to each cell in the cell priority list.
Further optionally, the mobile terminal may perform measurement operations at regular time to obtain the measurement information. The measurement operation includes at least one of a same frequency measurement, an inter-frequency measurement, and an inter-system measurement.
The same-frequency measurement means that the frequency to be measured by the mobile terminal and the frequency of the current serving cell are located in the same frequency band, and the signal quality of the neighboring cells with the same frequency can be obtained through the same-frequency measurement, so that the same-frequency cell reselection or switching can be performed according to the signal quality.
The inter-frequency measurement means that the frequency to be measured and the frequency of the current serving cell are located in different frequency bands, and the signal quality of the inter-frequency neighbor cell can be obtained through the inter-frequency measurement, so that the reselection or the switching of the inter-frequency cell can be performed according to the signal quality.
Different system measurement means that the system to be measured is different from the current service system of the mobile terminal, and in general, the frequency to be measured is also different from the current service frequency, and by the different system measurement, the mobile terminal can acquire the service quality of other systems in time, so that when the current service system is poor in quality or cannot pass certain services, the mobile terminal can switch or reselect other systems to work.
In the above alternative manner, the mobile terminal reports measurement information to the base station through measurement operation, and performs cell reselection or handover, and the base station can determine whether to update the cell priority according to the measurement information, and if so, send the cell priority update information to the mobile terminal; or when the base station feels that the cell priority needs to be updated due to the self-load condition, the updated cell priority updating information is also given to the mobile terminal.
202. And measuring each cell according to the frequency point information to obtain corresponding cell signal information.
In the embodiment of the invention, after receiving the cell priority update information, the mobile terminal does not directly reselect the cell to switch according to the cell priority list issued by the network equipment, but further measures to adjust the cell priority. Firstly, according to the frequency point information in the cell priority updating information, the cell signal information of the adjacent cell and the cell signal information of the current service cell are measured, wherein the cell signal information at least comprises an RSRQ value, an RSRP value, an SNR and the like.
203. And analyzing the system information of each cell to obtain the minimum resident signal of each cell.
In step 203, system messages of each cell are acquired, for example, the minimum accessed RSRP and RSRQ are acquired in the system message blocks (System Information Block, sib1), and then the minimum resident signal corresponding to the cell is obtained, including the Q-RxLev value.
204. And re-sequencing the cell in the cell priority list according to the cell signal information and the minimum resident signal corresponding to each cell.
After obtaining the cell signal information and the minimum resident signal in steps 202 and 203, according to the cell signal information and the minimum resident signal of each cell, the cells in the priority levels contained in the cell priority level update information issued by the network equipment are subjected to priority level reordering so as to determine more accurate cell priority levels.
It can be seen that, by implementing the above embodiment, the mobile terminal receives the cell priority update information sent by the network device, where the cell priority update information includes a cell priority list and frequency point information corresponding to each cell in the cell priority list, further measures each cell according to the frequency point information to obtain corresponding cell signal information, analyzes the system information of each cell to obtain a minimum resident signal of each cell, and then reorders the priority of the cells in the cell priority list according to the cell signal information and the minimum resident signal of each cell to update the priority sequence of the cells; therefore, by implementing the embodiment of the invention, the mobile terminal can measure the cells, reorder the original priorities of the cells provided by the network equipment according to the cell signal information and the minimum residence signal of the cells, redefine the priorities according to the measurement results, so that cells with higher quality can be selected during cell reselection, and the communication experience of the mobile terminal is improved.
Referring to fig. 3, fig. 3 is a flow chart of a method for updating priority of cell reselection according to a second embodiment of the present invention; as shown in fig. 3, the method for updating the priority of the cell reselection may include:
301. And receiving cell priority updating information sent by the network equipment, wherein the cell priority updating information comprises a cell priority list and frequency point information corresponding to each cell in the cell priority list.
302. And measuring each cell according to the frequency point information to obtain corresponding cell signal information.
303. And determining at least one cell with the RSRP value larger than the signal strength threshold value from the cell priority list according to the RSRP value of each cell.
After step 302, cell signal information of each cell is obtained, which at least includes an RSRQ value, an RSRP value, an SNR, and the like, and then a cell with a stronger signal is determined from a cell priority list according to the RSRP value, that is, at least one cell with an RSRP value greater than a signal strength threshold is determined.
The signal strength threshold may be set according to the actual situation.
304. And analyzing the system information of at least one cell to obtain the minimum resident signal of the corresponding cell.
In the embodiment of the invention, the priority of the cells with stronger signals is higher, and the cells with the RSRP value larger than the signal strength threshold can be selected to be reordered only, so that the reordering workload is reduced.
It should be noted that, since the signal strength threshold may be set by the mobile terminal according to the actual situation, it is possible to satisfy that at least one cell exists after filtering according to the signal strength threshold.
305. And re-prioritizing the at least one cell in the cell priority list based on the cell signal information and the minimum camping signal of the at least one cell.
And according to the cell signal information and the minimum resident signal of the at least one cell, carrying out priority reordering on the at least one cell in the priorities of the cells contained in the cell priority updating information issued by the network equipment so as to determine more accurate cell priorities.
306. And selecting a target cell according to the reordered cell priority list.
After the above steps are performed with priority reordering on the cell priority list issued by the network device, selecting a target cell from the reordered cell priority list, that is, selecting according to the reordered priority order.
307. And switching from the current serving cell to the target cell.
The mobile terminal is switched from the current service cell to the target cell, and resides in the target cell.
By implementing the embodiment of the invention, the mobile terminal can measure the cells to obtain the cell signal information, then determine at least one cell larger than the signal strength threshold according to the RSRP value in the cell signal information, and further reorder the priority of the at least one cell in the cell priority list according to the cell signal information of each cell in the at least one cell and the minimum resident signal of the cell, thereby redefining the priority according to the measurement result of the mobile terminal, selecting a better cell during cell reselection, and improving the communication experience of the mobile terminal.
Referring to fig. 4, fig. 4 is a flow chart of a priority updating method for cell reselection according to a second embodiment of the present invention; as shown in fig. 4, the method for updating the priority of the cell reselection may include:
401. and receiving cell priority updating information sent by the network equipment, wherein the cell priority updating information comprises a cell priority list and frequency point information corresponding to each cell in the cell priority list.
402. And measuring each cell according to the frequency point information to obtain corresponding cell signal information, wherein the cell signal information at least comprises an RSRQ value, an RSRP value and an SNR.
403. And analyzing the system information of each cell to obtain the minimum resident signal of each cell.
Wherein the minimum dwell signal includes a Q-RxLev value.
404. Judging whether the minimum resident signal of each cell is smaller than a preset receiving level threshold value or not; wherein, when there is a cell whose minimum dwell signal is less than the preset reception level threshold, the process goes to step 405, and when there is no cell whose minimum dwell signal is less than the preset reception level threshold, the process goes to step 411.
Each cell corresponds to a preset receiving level threshold, namely a Q-RxLevMin value, which indicates a minimum signal value which is required to be met when the mobile terminal needs to access the corresponding cell, and if the minimum resident signal is smaller than the Q-RxLevMin value, the signal quality of the cell is poor.
405. And reducing the priority of the corresponding cell in the cell priority list to obtain a first cell priority list.
If the minimum camping signal is less than the preset reception level threshold, i.e., the Q-RxLev value is less than the Q-RxLevMin value, it is indicated that the signal quality of the corresponding cell is poor, and the priority of the corresponding cell needs to be reduced, which may be, for example, a first-level priority may be reduced based on the priority indicated by the cell priority list, via step 404. And on the basis of the cell priority list, after the priority of all the cells with the minimum resident signals smaller than the preset receiving level threshold value is reduced, obtaining a first cell priority list.
406. Judging whether the Srxlev value contained in the RSRP value corresponding to each cell in the first cell priority list is equal to the Srxlev value of the current service cell or not according to the S criterion of the cell access criterion; wherein, when there is a cell with an Srxlev value equal to the Srxlev value of the current serving cell in the first cell priority list, the step is shifted to step 407, and when there is no cell with an Srxlev value equal to the Srxlev value of the current serving cell in the first cell priority list, the step is shifted to step 412.
The method comprises the steps of obtaining an Srxlev value contained in an RSRP value, and then according to an S criterion of a cell access criterion, firstly, the Srxlev value must be larger than 0, and then if a corresponding cell is a neighbor cell, the corresponding Srxlev value is smaller than or larger than the Srxlev value of a current service cell, at the moment, the corresponding cell is considered to be a high-quality cell, and if the corresponding cell is not satisfied, the Srxlev value of the current service cell is equal to the Srxlev value of the current service cell, so that signal quality is poor.
407. And reducing the priority of the corresponding cell in the first cell priority list to obtain a second cell priority list.
For cells with Srxlev value equal to the Srxlev value of the current serving cell, which indicates poor signal quality, the priority needs to be reduced, and for example, the first-level priority may be reduced based on the priority indicated by the first cell priority list. And on the basis of the first cell priority list, after all cells with Srxlev values equal to the Srxlev value of the current service cell are reduced in priority, obtaining a second cell priority list.
Optionally, step 406 may also be adjusted to: the priority ranking is performed according to the S criteria of the cell access criteria according to the Srxlev values of the respective cells, and is exemplified by ranking according to the order of the Srxlev values, the higher the Srxlev value, the higher the priority, the smaller the Srxlev value, and the lower the priority.
408. And according to the RSRQ value and the signal-to-noise ratio SNR of each cell in the second cell priority list, sequencing the priorities of each cell in the second cell priority list to obtain a third cell priority list.
And acquiring a second cell priority list through the steps, then further sequencing the priorities of the cells according to the RSRQ value and the signal-to-noise ratio SNR of each cell in the second cell priority list to acquire a third cell priority list, and selecting the cells based on the third cell priority list during subsequent handover or reselection.
Optionally, since the RSRQ value also indicates the signal-to-noise ratio of the signal quality, in combination with the SNR, each cell in the second cell priority list may be prioritized according to the RSRQ value of each cell.
For example, the priority order in the current cell priority list of the mobile terminal is: cell1> cell2> cell3> cell4; the priority order in the cell priority list issued by the network device is as follows: cell2> cell1> cell3> cell4, and the reordering of priorities by embodiments of the present invention includes, but is not limited to, the following possibilities:
1) If the Srxlev value of cell2 is less than the Srxlev value of cell1, the cell2 is reduced by one step, and the reordered cell priority list order is: cell1> cell2> cell3> cell4.
2) If the Srxlev value of cell2> the Srxlev value of cell1, but the RSRQ value of cell2 < the RSRQ value of cell1, then cell2 is reduced by one step, and the reordered cell priority list order is: cell1> cell2> cell3> cell4.
3) If the Srxlev value of cell2> the Srxlev value of cell1 and the RSRQ value of cell2> the RSRQ value of cell1, the priority of cell2 remains higher than the priority of cell1, with the priority order unchanged: cell2> cell1> cell3> cell4.
409. And selecting a target cell according to the third cell priority list.
410. And switching from the current serving cell to the target cell.
The present flow is ended.
And the mobile terminal selects a target cell from the third cell priority list, switches from the current service cell to the target cell, and camps on the target cell.
411. The cell priority list is obtained as the first cell priority list and the procedure goes to step 406.
412. The first cell priority list is acquired as the second cell priority list and the procedure goes to step 408.
It can be seen that, through the embodiment of the present invention, after receiving the cell priority list issued by the network device, the mobile terminal can re-measure to obtain the cell signal information of each cell, and then re-order the cell priority according to the cell signal information and the system information by using a formulated cell re-selection ordering mechanism, thereby comprehensively considering the cell signal strength, signal quality, signal-to-noise ratio and the like, so that the mobile terminal can select a better cell during cell re-selection, and improving the communication experience of the mobile terminal.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a priority updating device for cell reselection according to an embodiment of the present invention; as shown in fig. 5, the priority updating apparatus of the cell reselection may include:
A receiving module 510, configured to receive cell priority update information sent by a network device, where the cell priority update information includes a cell priority list and frequency point information corresponding to each cell in the cell priority list;
the measurement module 520 is configured to measure each cell according to the frequency point information to obtain corresponding cell signal information;
the parsing module 530 is configured to parse the system message of each cell, and obtain a minimum residence signal of each cell;
and the ranking module 540 is configured to reorder the cells in the cell priority list according to the cell signal information and the minimum resident signal corresponding to each cell.
By implementing the device, the mobile terminal can measure the cells, reorder the original priorities of the cells provided by the network equipment according to the cell signal information and the minimum residence signal of the cells, redefine the priorities according to the measurement results of the mobile terminal, so that the cells with higher quality can be selected during cell reselection, and the communication experience of the mobile terminal is improved.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a priority updating device for cell reselection according to a second embodiment of the present invention; the priority updating device of the cell reselection shown in fig. 6 is optimized based on the priority updating device of the cell reselection shown in fig. 5, in the priority updating device of the cell reselection shown in fig. 6, the cell signal information at least includes an RSRQ value, an RSRP value and a signal-to-noise ratio SNR, and the ranking module 540 may further include:
A first judging sub-module 610, configured to judge whether a minimum camping signal of each cell is smaller than a preset reception level threshold;
a sorting sub-module 620, configured to, when there is a cell whose minimum camping signal is smaller than a preset reception level threshold, reduce the priority of the corresponding cell in the cell priority list, and obtain a first cell priority list;
a second judging sub-module 630, configured to judge, according to an S criterion of the cell access criterion, whether an Srxlev value included in the RSRP value corresponding to each cell in the first cell priority list is equal to an Srxlev value of the current serving cell;
the above-mentioned sorting sub-module 620 is further configured to, when there is a cell whose Srxlev value is equal to the Srxlev value of the current serving cell in the first cell priority list, reduce the priority of the corresponding cell in the first cell priority list, and obtain a second cell priority list;
the above-mentioned sorting sub-module 620 is further configured to sort the priorities of the cells in the second cell priority list according to the RSRQ values and the signal-to-noise ratios SNR of the cells in the second cell priority list, so as to obtain a third cell priority list.
Further optionally, the sorting sub-module 620 is further configured to, when there is no cell with a minimum residence signal smaller than a preset reception level threshold, obtain a cell priority list as a first cell priority list, trigger to execute an S criterion according to a cell access criterion, and determine whether an Srxlev value included in an RSRP value corresponding to each cell in the first cell priority list is equal to an Srxlev value of a current serving cell;
The above-mentioned sorting sub-module 620 is further configured to, when there is no cell in the first cell priority list having an Srxlev value equal to the Srxlev value of the current serving cell, obtain the first cell priority list as the second cell priority list, trigger to execute the step of sorting the priorities of the cells in the second cell priority list according to the RSRQ values and the signal-to-noise ratios SNR of the cells in the second cell priority list, and obtain the third cell priority list.
In the device, after receiving the cell priority list issued by the network equipment, the mobile terminal can re-measure to obtain the cell signal information of each cell, then re-order the cell priority according to the cell signal information and the system information through a formulated cell re-selection ordering mechanism, comprehensively consider the cell signal intensity, signal quality, signal to noise ratio and the like, so that the mobile terminal can select a cell with higher quality during cell re-selection, and the communication experience of the mobile terminal is improved.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a priority updating device for cell reselection according to a third embodiment of the present invention; the priority updating device for cell reselection shown in fig. 7 is obtained by optimizing the priority updating device for cell reselection shown in fig. 6, and in the priority updating device for cell reselection shown in fig. 7:
A first selection module 710, configured to determine, from the cell priority list, at least one cell with an RSRP value greater than the signal strength threshold according to the RSRP value of each cell before the system message of each cell is parsed by the parsing module 530 to obtain the minimum residence signal of each cell;
the parsing module 530 is configured to parse the system message of each cell, and the manner of obtaining the minimum residence signal of each cell is specifically as follows:
analyzing the system information of at least one cell to obtain the minimum resident signal of the corresponding cell;
the above-mentioned ranking module 540 is configured to re-rank the cells in the cell priority list according to the cell signal information and the minimum resident signal corresponding to each cell, where the manner of re-ranking the cells in the cell priority list is specifically as follows:
and re-prioritizing the at least one cell in the cell priority list based on the cell signal information and the minimum camping signal of the at least one cell.
A second selecting module 720, configured to select a target cell according to the reordered cell priority list after the reordering module 540 reorders the priorities of the cells in the cell priority list according to the cell signal information and the minimum resident signal corresponding to each cell;
A switching module 730, configured to switch from the current serving cell to the target cell.
Through the above embodiment, the mobile terminal reorders the original priority of the cells according to the measured cell signal information, in combination with RSRQ, SNR, RSRP and the minimum resident signal, so as to obtain the cell where the more suitable current position resides, select the better cell, and promote the user communication experience.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention; the mobile terminal shown in fig. 8 may include:
a memory 801 storing executable program code;
a processor 802 coupled to the memory 801;
the processor 802 invokes executable program code stored in the memory 801 to perform some or all of the steps of the priority updating method of any one of the cell reselection of fig. 2 to 4.
The embodiment of the invention also discloses a computer readable storage medium storing a computer program, wherein the computer program causes a computer to execute a priority updating method of cell reselection disclosed in fig. 2 to 4.
Embodiments of the present invention also disclose a computer program product that, when run on a computer, causes the computer to perform some or all of the steps of any of the methods disclosed in fig. 2-4.
The embodiment of the invention also discloses an application release platform, which is used for releasing the computer program product, wherein when the computer program product runs on a computer, the computer is caused to execute part or all of the steps of any one of the methods disclosed in fig. 2 to 4.
Those of ordinary skill in the art will appreciate that all or part of the steps of the various methods of the above embodiments may be implemented by a program that instructs associated hardware, the program may be stored in a computer readable storage medium including Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), programmable Read-Only Memory (Programmable Read-Only Memory, PROM), erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), one-time programmable Read-Only Memory (OTPROM), electrically erasable programmable Read-Only Memory (EEPROM), compact disc Read-Only Memory (Compact Disc Read-Only Memory, CD-ROM) or other optical disk Memory, magnetic disk Memory, tape Memory, or any other medium that can be used for carrying or storing data that is readable by a computer.
The above describes in detail a method, a device, a mobile terminal and a storage medium for updating priority of cell reselection disclosed in the embodiments of the present invention, and specific examples are applied to illustrate the principles and embodiments of the present invention, where the above description of the embodiments is only for helping to understand the method and core ideas of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.

Claims (10)

1. A method for updating priority of cell reselection, comprising:
receiving cell priority updating information sent by network equipment, wherein the cell priority updating information comprises a cell priority list and frequency point information corresponding to each cell in the cell priority list;
measuring each cell according to the frequency point information to obtain corresponding cell signal information;
analyzing the system information of each cell to obtain the minimum residence signal of each cell;
and re-sequencing the cell in the cell priority list according to the cell signal information and the minimum resident signal corresponding to each cell.
2. The method of claim 1, wherein the cell signal information includes at least a reference signal received quality, RSRQ, a reference signal received power, RSRP, value and a signal-to-noise ratio, SNR, and wherein re-prioritizing cells in the cell priority list based on the cell signal information and the minimum camping signal corresponding to each cell comprises:
judging whether the minimum resident signal of each cell is smaller than a preset receiving level threshold value or not;
when the minimum resident signal is smaller than the preset receiving level threshold value, the priority of the corresponding cell in the cell priority list is reduced, and a first cell priority list is obtained;
judging whether the Srxlev value contained in the RSRP value corresponding to each cell in the first cell priority list is equal to the Srxlev value of the current service cell or not according to the S criterion of the cell access criterion;
when a cell with Srxlev value equal to the Srxlev value of the current service cell exists in the first cell priority list, reducing the priority of the corresponding cell in the first cell priority list, and obtaining a second cell priority list;
and according to the RSRQ value and the signal-to-noise ratio SNR of each cell in the second cell priority list, sequencing the priorities of each cell in the second cell priority list to obtain a third cell priority list.
3. The method according to claim 2, wherein the method further comprises:
when there is no cell whose minimum resident signal is smaller than the preset receiving level threshold, acquiring the cell priority list as the first cell priority list, executing the S criterion according to the cell access criterion, and judging whether the Srxlev value contained in the RSRP value corresponding to each cell in the first cell priority list is equal to the Srxlev value of the current service cell;
and when no cell with Srxlev value equal to the Srxlev value of the current service cell exists in the first cell priority list, acquiring the first cell priority list as the second cell priority list, and executing the step of sequencing the priorities of the cells in the second cell priority list according to the RSRQ value and the signal-to-noise ratio SNR of the cells in the second cell priority list to acquire a third cell priority list.
4. A method according to claim 2 or 3, wherein before said parsing the system message of each cell to obtain the minimum camping signal of each cell, the method further comprises:
Determining at least one cell with the RSRP value larger than a signal strength threshold value from the cell priority list according to the RSRP values of the cells;
the analyzing the system information of each cell to obtain the minimum residence signal of each cell includes:
analyzing the system information of the at least one cell to obtain the minimum resident signal of the corresponding cell;
and re-sequencing the cell in the cell priority list according to the cell signal information and the minimum resident signal corresponding to each cell, including:
and re-prioritizing the at least one cell in the cell priority list according to the cell signal information of the at least one cell and the minimum camping signal.
5. A method according to any one of claims 1 to 3, wherein after re-prioritizing cells in the cell priority list based on the cell signal information and the minimum camping signal corresponding to each cell, the method further comprises:
selecting a target cell according to the reordered cell priority list;
and switching from the current serving cell to the target cell.
6. A priority updating apparatus for cell reselection, comprising:
the receiving module is used for receiving cell priority updating information sent by the network equipment, wherein the cell priority updating information comprises a cell priority list and frequency point information corresponding to each cell in the cell priority list;
the measurement module is used for measuring each cell according to the frequency point information to obtain corresponding cell signal information;
the analysis module is used for analyzing the system information of each cell and acquiring the minimum residence signal of each cell;
and the sequencing module is used for sequencing the cells in the cell priority list again according to the cell signal information and the minimum resident signal corresponding to each cell.
7. The apparatus of claim 6, wherein the cell signal information comprises at least a reference signal received quality, RSRQ, a reference signal received power, RSRP, value and a signal-to-noise ratio, SNR, and wherein the ordering module comprises:
a first judging sub-module, configured to judge whether the minimum residence signal of each cell is smaller than a preset receiving level threshold;
the sequencing sub-module is used for reducing the priority of the corresponding cell in the cell priority list when the cell with the minimum resident signal smaller than the preset receiving level threshold exists, and obtaining a first cell priority list;
A second judging sub-module, configured to judge, according to an S criterion of a cell access criterion, whether an Srxlev value included in the RSRP value corresponding to each cell in the first cell priority list is equal to an Srxlev value of a current serving cell;
the sorting sub-module is further configured to, when a cell whose Srxlev value is equal to the Srxlev value of the current serving cell exists in the first cell priority list, reduce the priority of the corresponding cell in the first cell priority list, and obtain a second cell priority list;
and the sequencing sub-module is further configured to prioritize each cell in the second cell priority list according to the RSRQ value and the signal-to-noise ratio SNR of each cell in the second cell priority list, and obtain a third cell priority list.
8. The apparatus according to claim 7, wherein:
the sorting sub-module is further configured to, when there is no cell whose minimum residence signal is smaller than the preset reception level threshold, obtain the cell priority list as the first cell priority list, trigger to execute the S criterion according to the cell access criterion, and determine whether the Srxlev value included in the RSRP value corresponding to each cell in the first cell priority list is equal to the Srxlev value of the current serving cell;
And the sequencing sub-module is further configured to, when no cell with an Srxlev value equal to the Srxlev value of the current serving cell exists in the first cell priority list, acquire the first cell priority list as the second cell priority list, trigger execution of the step of sequencing each cell in the second cell priority list according to the RSRQ value and the signal-to-noise ratio SNR of each cell in the second cell priority list, and obtain a third cell priority list.
9. A mobile terminal, comprising:
a memory storing executable program code;
a processor coupled to the memory;
the processor invokes the executable program code stored in the memory to perform the priority update method of cell reselection of any of claims 1-5.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, carries out the steps of the method according to claims 1-5.
CN202210555088.8A 2022-05-20 2022-05-20 Priority updating method and device for cell reselection, mobile terminal and storage medium Pending CN117135665A (en)

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