CN113692001A - Cell residence selection method and system - Google Patents
Cell residence selection method and system Download PDFInfo
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- 238000010187 selection method Methods 0.000 title claims abstract description 29
- 238000005259 measurement Methods 0.000 claims abstract description 130
- 230000004913 activation Effects 0.000 claims abstract description 46
- 238000010408 sweeping Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims description 36
- 238000004590 computer program Methods 0.000 claims description 16
- 238000004891 communication Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 101150096310 SIB1 gene Proteins 0.000 description 3
- 101150039363 SIB2 gene Proteins 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005111 flow chemistry technique Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
Abstract
The invention provides a cell residence selection method and a system, which are used for staying in a first target base station area; determining first target base station residence configuration information based on the first target state activation instruction and the first target frequency point acquisition instruction; updating an original measurement file to obtain a first measurement file; when the target base station stays in a second target base station area, determining second target base station stay configuration information based on a second target state activation instruction and a second target frequency point acquisition instruction; updating the first measurement file to obtain a second measurement file; and if the residence state is switched, acquiring the frequency point information in the second measurement file, and selecting a new frequency point for residence based on the frequency point information. According to the invention, the frequency point information of the current cell and the adjacent cell is obtained through terminal period measurement, the frequency point information is used as prior information, and when the terminal is started or the network is disconnected, attempted residence is carried out according to the existing frequency points, so that the network searching success rate of the terminal is improved, a large amount of frequency sweeping time is saved, and the user experience is improved.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a cell camping selection method and system.
Background
With the rapid development of wireless communication technology, more and more communication systems need to be supported by a UE (User Equipment), from the first 2G, 3G and 4G to the present 2G, 3G, 4G and 5G, and 6G is added in the future, so that the time required for finding a suitable cell to camp on and finally stably camp on a cell through reselection after the UE is powered on or the UE loses network is longer and longer.
Generally, the UE network searching and frequency sweeping process specifically includes:
1) finding the frequency point with the strongest signal according to the system and frequency band preferentially supported by the UE, trying to reside, ending frequency sweeping if residing is successful, and going to step 2 if not;
2) searching a frequency point with a second-strong signal, trying to reside, finishing frequency sweeping if the residing is successful, and repeating the step 2 if the residing is unsuccessful);
3) if the frequency points of the frequency band are searched completely and the UE does not reside successfully, repeating the step 1), and searching the next frequency band which preferentially supports the system;
4) and if the frequency bands of the system preferentially supported by the UE are searched completely and the UE does not reside successfully, repeating the step 1) to search the frequency bands of the system preferentially supported for the second time.
If the UE is started or the network is disconnected, the full-band scanning is carried out to search the network, the consumed time is longer and longer, the average residence time of the UE is longer, the power consumption is increased, and the user experience is inevitably seriously influenced.
Disclosure of Invention
The invention provides a cell residence selection method and a cell residence selection system, which are used for solving the defect that the use experience of a user is influenced because the UE needs to carry out frequency sweeping in a full frequency band when the UE is started or disconnected in the prior art.
In a first aspect, the present invention provides a cell camping selection method, including:
waiting to reside in a first target base station area;
receiving a first target state activation instruction and a first target frequency point acquisition instruction issued by a first target base station, and determining first target base station residence configuration information based on the first target state activation instruction and the first target frequency point acquisition instruction;
updating an original measurement file based on the resident configuration information of the first target base station to obtain a first measurement file;
when the target base station stays in a second target base station area, receiving a second target state activation instruction and a second target frequency point acquisition instruction issued by a second target base station, and determining second target base station stay configuration information based on the second target state activation instruction and the second target frequency point acquisition instruction;
updating the first measurement file based on the resident configuration information of the second target base station to obtain a second measurement file;
and if the residence state is switched, acquiring the frequency point information in the second measurement file, and selecting a new frequency point for residence based on the frequency point information.
In one embodiment, the updating the raw measurement file based on the first target base station camping configuration information to obtain a first measurement file includes:
if the original measurement file is not empty, clearing the original measurement file;
determining first target frequency point information based on the first target base station residence configuration information, storing the first target frequency point information to a signal list in the original measurement file, and arranging all the target frequency point information in the signal list from high to low according to reference received power (RSRP) to obtain the first measurement file.
In one embodiment, the updating the first measurement file based on the second target base station camping configuration information to obtain a second measurement file includes:
if the first measurement file is not empty, resetting the first measurement file;
determining second target frequency point information based on the second target base station residence configuration information, storing the second target frequency point information to a signal list in the first measurement file, arranging all the target frequency point information in the signal list from high to low according to RSRP, and adding a preset priority judgment field to obtain the second measurement file.
In one embodiment, the obtaining of the frequency point information in the second measurement file if the camping state is switched, and selecting a new frequency point for camping based on the frequency point information includes:
if the network is disconnected or the power is turned off, the second measurement file is acquired after the second target base station area is re-entered, and the frequency point with the highest RSRP is determined to reside;
if the residing is failed, other frequency points with the second-time strong RSRP are sequentially selected for residing until the residing is successful;
and if determining that all the frequency points in the second measurement file are unsuccessfully resided, entering a frequency sweeping process.
In an embodiment, the first target base station and the second target base station are both in a 4G standard or a 5G standard.
In a second aspect, the present invention further provides a cell camping selection method, including:
receiving first target base station resident information of a terminal;
and issuing a first target state activation instruction and a first target frequency point acquisition instruction to the terminal so that the terminal can determine the resident configuration information of the first target base station.
In one embodiment, the issuing a first target state activation instruction and a first target frequency point acquisition instruction to the terminal to allow the terminal to determine the first target base station residence configuration information includes:
sending a measurement switch cell carrying an idle state or a deactivated state to the terminal;
sending a base station information set in a preset distribution area to the terminal, wherein the base station information set in the preset distribution area is carried by a measurement configuration cell and a cell pilot frequency carrier list;
and sending a wireless connection instruction carrying a target state measurement period to the terminal, and determining a target frequency point set acquired by the terminal.
In a third aspect, the present invention further provides a cell camping selection method, including:
receiving second target base station resident information of a terminal when the terminal is switched from a first base station area to a second base station area;
and issuing a second target state activation instruction and a second target frequency point acquisition instruction to the terminal so that the terminal can determine the resident configuration information of the second target base station.
In a fourth aspect, the present invention further provides a cell camping selection system, including:
the first residing module is used for residing in a first target base station area;
the first configuration module is used for receiving a first target state activation instruction and a first target frequency point acquisition instruction issued by a first target base station, and determining first target base station residence configuration information based on the first target state activation instruction and the first target frequency point acquisition instruction;
a first updating module, configured to update an original measurement file based on the first target base station residence configuration information to obtain a first measurement file;
the second configuration module is used for receiving a second target state activation instruction and a second target frequency point acquisition instruction issued by a second target base station to be resident in a second target base station area, and determining resident configuration information of the second target base station based on the second target state activation instruction and the second target frequency point acquisition instruction;
a second updating module, configured to update the first measurement file based on the second target base station camping configuration information, to obtain a second measurement file;
and the residence switching module is used for acquiring the frequency point information in the second measurement file if the residence state is switched, and selecting a new frequency point for residence based on the frequency point information.
In a fifth aspect, the present invention further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the program, the steps of the cell residence selection method are implemented as any one of the above.
In a sixth aspect, the present invention also provides a non-transitory computer readable storage medium, on which a computer program is stored, which computer program, when executed by a processor, performs the steps of the cell camping selection method as described in any of the above.
In a seventh aspect, the present invention also provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the steps of the cell residence selection method are implemented as in any one of the above methods.
According to the cell residence selection method and the cell residence selection system, the frequency point information of the current cell and the adjacent cell is obtained through terminal period measurement, the frequency point information is used as prior information, and when the terminal is started or is disconnected from the network, attempted residence is carried out according to the existing frequency points, so that the network searching success rate of the terminal is improved, a large amount of frequency sweeping time is saved, and the user experience is improved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for 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 cell camping selection method provided in the present invention;
fig. 2 is a second flowchart of the cell camping selection method provided in the present invention;
fig. 3 is a third schematic flowchart of a cell camping selection method provided by the present invention;
FIG. 4 is a flowchart illustrating a UE residing in a 5G A network and moving to a 5G B network and being dropped or powered on;
FIG. 5 is a flowchart illustrating a UE residing in a 5G A network and moving to a 4G C network and being disconnected from the network or powered on;
FIG. 6 is a flowchart illustrating a UE camping on a 4G C network and moving to a 4G D network, and being disconnected from the network or powered on;
FIG. 7 is a flowchart illustrating a UE camping on a 4G C network and moving to a 5G A network, and being disconnected from the network or powered on;
fig. 8 is a schematic structural diagram of a cell camping selection system provided in the present invention;
fig. 9 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a new cell residence selection method, aiming at the problems that in the prior art, after a UE is started or a network is disconnected, the time required for the UE to search the network until the UE can stably reside is too long, the power consumption of the UE is increased, and the physical examination of a user is poor.
According to protocols of 3GPP 38331 and 36331, a UE is configured by a base station in an idle state and an inactive state to periodically measure a local cell and an operator configures adjacent cells of the local cell, and a result record is stored and sorted according to the RSRP (Reference Signal Receiving Power). This is used as a priori information. When the UE is started or loses network, trying to reside according to the frequency points in the record, and sweeping the frequency after all the frequency points in the record fail to try to reside. Because the shutdown and the startup with high probability are in the same place under most conditions according to statistics, and the network loss and the network re-searching of the UE are definitely in the same place, the network searching success rate can be improved by firstly using the prior information stored by the UE to search the network, a time-consuming frequency sweeping process can be saved, the network searching time is greatly reduced, and the user experience is improved.
Fig. 1 is a schematic flow diagram of a cell camping selection method provided by the present invention, and as shown in fig. 1, a corresponding execution subject is a UE, which includes:
101, waiting to reside in a first target base station area;
the UE related to the invention supports 4G and 5G simultaneously, and resides under the first target base station when entering the cell range covered by the base station.
102, receiving a first target state activation instruction and a first target frequency point acquisition instruction issued by a first target base station, and determining first target base station residence configuration information based on the first target state activation instruction and the first target frequency point acquisition instruction;
here, the first target base station issues a first target state activation instruction to the UE according to the network planning of the operator, and a first target frequency point acquisition instruction that instructs the terminal to perform frequency point search, and after receiving the instruction, the UE executes to acquire the resident configuration information of the first target base station.
103, updating an original measurement file based on the first target base station resident configuration information to obtain a first measurement file;
and after the UE obtains the resident configuration information of the first target base station, recording and updating the stored original measurement file to obtain an updated first measurement file.
104, when the target base station is to reside in a second target base station area, receiving a second target state activation instruction and a second target frequency point acquisition instruction issued by a second target base station, and determining residence configuration information of the second target base station based on the second target state activation instruction and the second target frequency point acquisition instruction;
and after the UE resides in the range of other base stations, namely a second target base station, similarly, the second target base station also issues a second target state activation instruction to the UE according to the network planning of the operator, and a second target frequency point acquisition instruction for indicating the terminal to perform frequency point search, and after receiving the instruction, the UE executes to acquire the residence configuration information of the second target base station.
105, updating the first measurement file based on the second target base station residence configuration information to obtain a second measurement file;
further, the UE updates on the basis of the first measurement file, and adds a corresponding judgment identifier to form an updated second measurement file.
And 106, if the residence state is switched, obtaining the frequency point information in the second measurement file, and selecting a new frequency point for residence based on the frequency point information.
And if the UE is disconnected at the moment or the UE is restarted after being powered off, acquiring the frequency point information in the newly updated second measurement file to search the frequency point for residing.
Here, it is necessary to distinguish between the 5G processing flow and the 4G processing flow:
first, as shown in table 1, description is made on how SIB (System Information Block) carrying messages and related terms are involved in the flow:
TABLE 1
1. 5G Process flow
1) If the UE supports 4G and 5G and enters the range of a 5G base station A, and stably resides in 5G;
2) activating UE to measure in idle/inactive state by using 5G base station A SIB1 carrying information elements idleModeMeasurementEUTRA and idleModeMeasurementsNR;
3) according to the plan of an operator, 5G base station information (frequency point number, subcarrier spacing, PCI (Physical Cell Identifier) and the like) near a base station A informs UE of measuring the 5G frequency points in an idle/inactive state through Cell measIdleConfigSIB of SIB4 InterFreqCarrierFreqList and SIB11, wherein the measIdleConfigSIB comprises the information of the base station A;
4) according to the planning of an operator, 4G base station information (frequency point number, PCI and the like) near a base station A is notified to UE to measure the 4G frequency points in idle/inactive states through an SIB11 cell measIdleConfigSIB;
5) carrying a measIdleDuration cell in RRCRelease, configuring idle/inactive state measurement period, and setting the idle/inactive state measurement period as 300 seconds;
6) after receiving the messages, the UE measures the 5G frequency points according to the configuration of the base station A, and stores the 5G result into a measIdleCarrierListNR list in a variable VarMeasIdleConfig, wherein the measIdleCarrierListNR list is arranged from high to low according to the result of RSRP. If the measIdleCarrierListNR list has a value, clearing the measIdleCarrierListNR list;
7) after receiving the messages, the UE measures the 4G frequency points according to the configuration of the base station A, and stores the 4G results into a measIdleCarrierListEUTRA list in a variable VarMeasIdleConfig, wherein the measIdleCarrierListEUTRA list is arranged from high to low according to the result of RSRP. If the measIdleCarrierListEUTRA list has a value, clearing the measIdleCarrierListEUTRA list;
8) save varmeasldleconfig to the file and add a field reference, 0: 5G-first, 1 and 4G-first. If the current UE resides in the 5G base station, setting the current UE to be 5G-first, and if the current UE resides in the 4G base station, setting the current UE to be 4G-first;
9) if the UE moves to a 5G base station B and stably resides in the base station B, repeating the steps 2) -8), and if the UE moves to a 4G base station, entering 4G flow processing;
10) if the UE is disconnected at the moment or the user powers off the UE and then powers on the UE again, the UE firstly reads the file, if the file is 5G-preferred, the UE selects the highest RSRP to try to reside according to the frequency point in the measIdleCarrierListNR list, and if the file is successful, the flow is ended;
11) if the residence is failed, selecting a frequency point with strong RSRP in the measIdleCarrierListNR list to reside, and if the residence is successful, ending the process;
12) if the residence fails, repeating the step 11), and if the frequency points in the measiderrierlistnr list are failed to attempt to reside, letting the UE enter the frequency sweeping process.
2. 4G Process flow
1) If the UE supports 4G and 5G and enters the range of a 4G base station C, and stably resides in the 4G;
2) the UE is activated to measure in idle/inactive state by using cell IDLEModeMeasurementEUTRA and IDLEModeMeasurementNR carried by 4G base station C SIB 2;
3) according to the plan of an operator, 5G base station information (frequency point numbers, subcarrier spacing, PCI and the like) near a base station C is informed to UE to measure the 5G frequency points in idle/inactive states through SIB5 cells measIdleConfigSIB-NR and cell Carrier FreqListNR of SIB 24;
4) according to the planning of an operator, 4G base station information (frequency point number, PCI and the like) near a base station C is notified to UE to measure the 4G frequency points in idle/inactive states through a cell measIdleConfigSIB of an SIB5, wherein the measIdleConfigSIB comprises the information of the cell;
5) carrying a measIdleDuration cell in RRCConnectionRelease, configuring idle/inactive state measurement period, and setting the idle/inactive state measurement period as 300 seconds;
6) after receiving the messages, the UE measures the 5G frequency points according to the configuration of the base station C, and stores the 5G result into a measIdleCarrierListNR list in a variable VarMeasIdleConfig, wherein the measIdleCarrierListNR list is arranged from high to low according to the result of RSRP. If the measIdleCarrierListNR list has a value, clearing the measIdleCarrierListNR list;
7) after receiving the messages, the UE measures the 4G frequency points according to the configuration of the base station C, stores the 4G results into a measIdleCarrierListEUTRA list in a variable VarMeasIdleConfig, arranges the measIdleCarrierListEUTRA list from high to low according to the result of RSRP, and clears the measIdleCarrierListEUTRA list firstly if the measIdleCarrierListEUTRA list has a value;
8) save varmeasldleconfig to the file and add a field reference, 0: 5G-first, 1 and 4G-first. If the current UE resides in the 5G base station, setting the current UE to be 5G-first, and if the current UE resides in the 4G base station, setting the current UE to be 4G-first;
9) if the UE moves to 4G base station D, and stably resides in base station D. Repeating the steps 2) -8), if the UE moves to the 5G base station, entering 5G flow processing;
10) if the UE is disconnected from the network at the moment or the user powers off the UE and then powers on the UE again, the UE firstly reads the file, if the file is 4G-first, the highest RSRP is selected to try to reside according to the frequency points in the measIdleCarrierListEUTRA list, and if the file is successful, the process is ended;
11) if the residence is failed, selecting a frequency point with strong RSRP in the measIdleCarrierListEUTRA list to reside, and if the residence is successful, ending the process;
12) if the residence fails, repeating the step 11), and if the frequency points in the measiderlierlisteutra list all try to reside unsuccessfully, letting the UE enter a frequency sweeping process.
According to the invention, the frequency point information of the current cell and the adjacent cell is obtained through terminal period measurement, the frequency point information is used as prior information, and when the terminal is started or the network is disconnected, attempted residence is carried out according to the existing frequency points, so that the network searching success rate of the terminal is improved, a large amount of frequency sweeping time is saved, and the user experience is improved.
Based on the foregoing embodiment, the updating the original measurement file based on the first target base station camping configuration information to obtain the first measurement file includes:
if the original measurement file is not empty, clearing the original measurement file;
determining first target frequency point information based on the first target base station residence configuration information, storing the first target frequency point information to a signal list in the original measurement file, and arranging all the target frequency point information in the signal list from high to low according to reference received power (RSRP) to obtain the first measurement file.
Specifically, for the 5G processing flow, the 5G base station a (first target base station) SIB1 carries the cells idlemeasurementeutra and idlemeasurementnr to activate the UE to measure in idle/inactive state;
according to the plan of the operator, 5G base station information (frequency point number, subcarrier spacing, PCI through SIB4 InterFreqCarrierFreqList and SIB11 cell measIdleConfigSIB informs UE to measure the 5G frequency points in idle/inactive state, wherein the measIdleConfigSIB includes the information of the base station A, or 4G base station information (frequency point number, PCI, etc.) near the base station A through SIB11 cell measIdleConfigSIB informs UE to measure the 4G frequency points in idle/inactive state;
carrying a measIdleDuration cell in RRCRelease, configuring idle/inactive state measurement period, and setting the idle/inactive state measurement period as 300 seconds;
after receiving the message, the UE measures the 5G frequency points according to the configuration of the base station A, and stores the 5G result into a measIdleCarrierListNR list in a variable VarMeasIdleConfig, wherein the measIdleCarrierListNR list is arranged from high to low according to the result of RSRP. If the measIdleCarrierListNR list has a value, clearing the measIdleCarrierListNR list; or measuring the 4G frequency points according to the configuration of the base station A, and storing the 4G result into a measidleCardierListEUTRA list in a variable VarMeasIdleConfig, wherein the measIdleCarrierListEUTRA list is arranged from high to low according to the result of RSRP. If there is a value in the measIdleCarrierListEUTRA list, the measIdleCarrierListEUTRA list is cleared first.
Aiming at the 4G processing flow, the UE is activated to measure in idle/inactive state by using a SIB2 (a 4G base station C (a first target base station) carrying cells of idleModeMeasurementEUTRA and idleModeMeasurementsNR;
according to the plan of an operator, 5G base station information (frequency point numbers, subcarrier spacing, PCI and the like) near a base station C is informed to UE to measure the 5G frequency points in idle/inactive states through SIB5 cells measIdleConfigSIB-NR and cell Carrier FreqListNR of SIB 24; or, the 4G base station information (frequency point number, PCI, etc.) near the base station C is notified to the UE to measure the 4G frequency points in idle/inactive state through the cell measIdleConfigSIB of SIB5, which includes the information of the cell;
similarly, carrying a measIdleDuration cell in RRCConnectionRelease, configuring idle/inactive state measurement period, and setting the idle/inactive state measurement period as 300 seconds;
after receiving the messages, the UE measures the 5G frequency points according to the configuration of the base station C, and stores the 5G result into a measIdleCarrierListNR list in a variable VarMeasIdleConfig, wherein the measIdleCarrierListNR list is arranged from high to low according to the result of RSRP. If the measIdleCarrierListNR list has a value, clearing the measIdleCarrierListNR list; or measuring the 4G frequency points according to the configuration of the base station C, and storing the 4G result into a measidleCardierListEUTRA list in a variable VarMeasIdleConfig, wherein the measIdleCarrierListEUTRA list is arranged from high to low according to the result of RSRP. If there is a value in the measIdleCarrierListEUTRA list, the measIdleCarrierListEUTRA list is cleared first.
Based on any of the above embodiments, the updating the first measurement file based on the camping configuration information of the second target base station to obtain a second measurement file includes:
if the first measurement file is not empty, resetting the first measurement file;
determining second target frequency point information based on the second target base station residence configuration information, storing the second target frequency point information to a signal list in the first measurement file, arranging all the target frequency point information in the signal list from high to low according to RSRP, and adding a preset priority judgment field to obtain the second measurement file.
Specifically, for the 5G process flow, the varmeasldleconfig is saved to a file, and a field reference, 0: 5G-first, 1 and 4G-first. If the current UE resides in the 5G base station, setting the current UE to be 5G-first, and if the current UE resides in the 4G base station, setting the current UE to be 4G-first;
for the 4G process flow, the varmeasldleconfig is saved to a file, and a field reference, 0: 5G-first, 1 and 4G-first. If the current UE resides in the 5G base station, the UE is set to be 5G priority, and if the current UE resides in the 4G base station, the UE is set to be 4G priority.
Based on any of the embodiments, if the residing state is switched, obtaining the frequency point information in the second measurement file, and selecting a new frequency point for residing based on the frequency point information includes:
if the network is disconnected or the power is turned off, the second measurement file is acquired after the second target base station area is re-entered, and the frequency point with the highest RSRP is determined to reside;
if the residing is failed, other frequency points with the second-time strong RSRP are sequentially selected for residing until the residing is successful;
and if determining that all the frequency points in the second measurement file are unsuccessfully resided, entering a frequency sweeping process.
Specifically, for the 5G processing flow, if the UE is disconnected from the network at this time or the user powers off the UE and then powers back on the UE, the UE first reads the file, if the 5G is preferred, selects the frequency point in the measIdleCarrierListNR list with the highest RSRP to try to reside, and if the 5G is preferred, the flow is ended; if the residence is failed, selecting a frequency point with strong RSRP in the measIdleCarrierListNR list to reside, and if the residence is successful, ending the process; if the residence fails, repeating the previous steps; and if the frequency points in the measIdleCarrierListNR list all try to reside unsuccessfully, the UE enters a frequency sweeping process.
Aiming at the 4G processing flow, if the UE is disconnected at the moment or the user powers off the UE and then powers on the UE again, the UE firstly reads the file, if the 4G is prior, the UE selects the highest RSRP to try to reside according to the frequency points in the measIdleCarrierListEUTRA list, and if the 4G is prior, the flow is ended; if the residence is failed, selecting a frequency point with strong RSRP in the measIdleCarrierListEUTRA list to reside, and if the residence is successful, ending the process; if the residence fails, repeating the steps, and if the frequency points in the measiderlisteutra list all try to reside unsuccessfully, letting the UE enter a frequency sweeping process.
According to the method, the base station configures the UE in idle state and inactive state periodic measurement local cells and the operator configures the adjacent cells of the local cell, the result records are stored and are sequenced according to the RSRP size to be used as prior information, when the UE is started or loses network, the UE tries to reside according to the frequency points in the records, and if all the frequency points in the records fail to reside, the frequency sweeping is carried out, so that the success rate of network searching is improved, and the time of frequency sweeping is saved.
Fig. 2 is a second flowchart of the cell camping selection method provided by the present invention, and as shown in fig. 2, the corresponding execution subject is a first target base station, which includes:
201, receiving first target base station residence information of a terminal;
202, issuing a first target state activation instruction and a first target frequency point acquisition instruction to the terminal, so that the terminal can determine the first target base station residence configuration information.
Specifically, a first target base station, that is, a base station where the UE initially accesses to reside, issues a first target state activation instruction to the UE according to network planning of an operator, and a first target frequency point acquisition instruction instructing the terminal to perform frequency point search, and after receiving the instruction, the UE executes to acquire residence configuration information of the first target base station.
The first target base station may be in a 4G standard or a 5G standard.
According to the invention, the frequency point information of the current cell and the adjacent cell is obtained through terminal period measurement, the frequency point information is used as prior information, and when the terminal is started or the network is disconnected, attempted residence is carried out according to the existing frequency points, so that the network searching success rate of the terminal is improved, a large amount of frequency sweeping time is saved, and the user experience is improved.
Fig. 3 is a third schematic flow chart of the cell camping selection method provided in the present invention, and as shown in fig. 3, the corresponding execution subject is a second target base station, which includes:
301, receiving a second target base station residence information of a terminal when the terminal is switched from a first base station area to a second base station area;
302, issuing a second target state activation instruction and a second target frequency point acquisition instruction to the terminal, so that the terminal can determine the residing configuration information of the second target base station.
Specifically, when the UE is switched from the first target base station to a new base station for camping, that is, the second target base station also issues a second target state activation instruction to the UE according to the network planning of the operator, and a second target frequency point acquisition instruction instructing the terminal to perform frequency point search, and after receiving the instruction, the UE executes to acquire camping configuration information of the second target base station.
Similarly, the second target base station herein may be in 4G format, and may also be in 5G format.
According to the invention, the frequency point information of the current cell and the adjacent cell is obtained through terminal period measurement, the frequency point information is used as prior information, and when the terminal is started or the network is disconnected, attempted residence is carried out according to the existing frequency points, so that the network searching success rate of the terminal is improved, a large amount of frequency sweeping time is saved, and the user experience is improved.
The following describes the scheme of the present invention in a switching scenario between networks of different systems:
fig. 4 is a flowchart of the UE residing in the 5G A network and moving to the 5G B network and being disconnected from the network or powered on, as shown in fig. 4, including:
step 101: the UE enters the range of the gNB-A and stably resides in the gNB-A.
Step 102: the UE establishes connection with a base station gNB-A, receives a system message of the gNB-A, and activates measurement of UE idle/inactive state in SIB 1.
Step 103: according to the network plan of operation, the NR cells near the gNB-a are all included in the inter freqcarrierfreqlist information element of SIB4 and broadcast.
Step 104: according to the network plan of operation, the cells and the union cells of NR near the gNB-a are both contained in the measideconfigsib cell of SIB11 and broadcast.
Step 105: according to the network plan of operation, the cells and the merged cells of the LTE near the gNB-a are both included in the measideconfigsib information element of SIB11 and broadcast.
Step 106: the gNB-A issues RRCRelease to the UE, and the UE enters into idle/inactive state, and sets the value to 300 seconds in the measIdleDuration cell of RRCRelease.
Step 107: according to the rule of 3GPP protocol 38331idle/inactive measurement, after receiving SIB1, SIB4, SIB11 and RRCRelease, the UE will perform idle/inactive measurement according to the configured cell of the system message in a period of 5 minutes.
Step 108: according to the 38331 protocol, the UE writes the measurement result of 5G into the measIdleCarrierListNR list in the variable VarMeasIdleConfig, and arranges the NR cells in the measIdleCarrierListNR list in the order of RSRP from large to small.
Step 109: according to the 38331 protocol, the UE writes the measurement result of 4G into a measIdleCarrierListEUTRA list in a variable VarMeasIdleConfig, and arranges the LTE cells in the measIdleCarrierListEUTRA list in the sequence of RSRP from large to small.
Step 110: the UE writes varmeasldleconfig into the measurement file, which sets a field, reference, 0: indicates 5G is preferred, 1: indicating 4G priority. The UE is set to 0 if it is currently camped on 5G and set to 1 if it is camped on 4G.
Step 111: if the UE moves to gNB-B and stably resides in gNB-B, step 102 and step 110 are repeated.
Step 112: and when the UE loses network or is started up in the gNB-B, the UE reads the measurement file.
Step 113: if the reference is 1, trying to reside according to the cell RSRP in the measIdleCarrierListEUTRA list from high to low one by one, if one cell resides successfully, ending the cell search, and if none of the cells reside successfully, entering the full-band frequency sweeping flow by the UE.
Step 114: if the reference is 0, trying to reside according to the cell RSRP in the measIdleCarrierListNR list from high to low one by one, if one cell is successfully resided, ending the cell search, and if the cell is not successfully resided, entering the full-band frequency sweeping process by the UE.
Similarly, as shown in fig. 5, the process of moving from the 5G A network to the 4G C network and the network is disconnected or powered on is similar to the above process, and is not repeated here.
Fig. 6 is a flowchart of the UE residing in the 4G C network and moving to the 4G D network and being disconnected from the network or powered on, as shown in fig. 6, including:
step 201: the UE enters the range of the eNB-C and stably resides in the eNB-C.
Step 202: the UE establishes connection with a base station eNB-C, receives system information of the eNB-C, and activates measurement of idle/inactive state of the UE in SIB 2.
Step 203: according to the network plan of operation, the cells of NR near eNB-C are all contained in the measidieconfigsib-NR information element of SIB5 and broadcast.
Step 204: the NR cells near eNB-C are all included in the carrierFreqListNR information element of SIB24 and broadcast according to the network plan of operation.
Step 205: according to the network plan of operation, the cells and the merged cells of the LTE near eNB-C are both included in the measideconfigsib information element of SIB5 and broadcast.
Step 206: the eNB-C sends RRCConnectionRelease to the UE to make the UE enter idle/inactive state, and sets the value to 300 seconds in the measIdleDuration cell of RRCConnectionRelease.
Step 207: according to the rule of 3GPP protocol 36331idle/inactive measurement, after receiving SIB2, SIB5, SIB24 and RRCConnectionRelease, the UE will perform idle/inactive measurement according to the configured cell of the system message in a period of 5 minutes.
Step 208: according to the 36331 protocol, the UE writes the measurement result of 5G into the measIdleCarrierListNR list in the variable VarMeasIdleConfig, and arranges the NR cells in the measIdleCarrierListNR list in the order of RSRP from large to small.
Step 209: according to the 36331 protocol, the UE writes the measurement result of 4G into a measIdleCarrierListEUTRA list in a variable VarMeasIdleConfig, and arranges the LTE cells in the measIdleCarrierListEUTRA list in the sequence of RSRP from large to small.
Step 210: the UE writes varmeasldleconfig into the measurement file, which sets a field, reference, 0: 5G-first, 1 and 4G-first. The UE is set to 0 if it is currently camped on 5G and set to 1 if it is camped on 4G.
Step 211: if the UE moves to eNB-D and stably resides at eNB-D, step 102 and step 110 are repeated.
Step 212: and the UE loses network or is started up at the eNB-D, and the UE reads the measurement file firstly.
Step 213: if the reference is 1, trying to reside according to the cell RSRP in the measIdleCarrierListEUTRA list from high to low one by one, if one cell resides successfully, ending the cell search, and if none of the cells reside successfully, entering the full-band frequency sweeping flow by the UE.
Step 214: if the reference is 0, trying to reside according to the cell RSRP in the measIdleCarrierListNR list from high to low one by one, if one cell is successfully resided, ending the cell search, and if the cell is not successfully resided, entering the full-band frequency sweeping process by the UE.
Similarly, as shown in fig. 7, the process of moving from the 4G C network to the 5G A network and the network is disconnected or powered on is similar to the above process, and is not repeated here.
The cell residence selection system provided by the present invention is described below, and the cell residence selection system described below and the cell residence selection method described above may be referred to correspondingly.
Fig. 8 is a schematic structural diagram of a cell camping selection system provided in the present invention, as shown in fig. 8, including: a first park module 81, a first configuration module 82, a first update module 83, a second configuration module 84, a second update module 85, and a park switch module 86, wherein:
the first camping module 81 is configured to camp on a first target base station area; the first configuration module 82 is configured to receive a first target state activation instruction and a first target frequency point acquisition instruction issued by a first target base station, and determine first target base station residence configuration information based on the first target state activation instruction and the first target frequency point acquisition instruction; the first updating module 83 is configured to update an original measurement file based on the first target base station camping configuration information, so as to obtain a first measurement file; the second configuration module 84 is configured to wait to reside in a second target base station area, receive a second target state activation instruction and a second target frequency point acquisition instruction issued by a second target base station, and determine second target base station residence configuration information based on the second target state activation instruction and the second target frequency point acquisition instruction; the second updating module 85 is configured to update the first measurement file based on the camping configuration information of the second target base station, so as to obtain a second measurement file; the residing switching module 86 is configured to, if the residing state is switched, acquire the frequency point information in the second measurement file, and select a new frequency point for residing based on the frequency point information.
According to the invention, the frequency point information of the current cell and the adjacent cell is obtained through terminal period measurement, the frequency point information is used as prior information, and when the terminal is started or the network is disconnected, attempted residence is carried out according to the existing frequency points, so that the network searching success rate of the terminal is improved, a large amount of frequency sweeping time is saved, and the user experience is improved.
Fig. 9 illustrates a physical structure diagram of an electronic device, and as shown in fig. 9, the electronic device may include: a processor (processor)910, a communication Interface (Communications Interface)920, a memory (memory)930, and a communication bus 940, wherein the processor 910, the communication Interface 920, and the memory 930 communicate with each other via the communication bus 940. Processor 910 may invoke logic instructions in memory 930 to perform a cell park selection method comprising: waiting to reside in a first target base station area; receiving a first target state activation instruction and a first target frequency point acquisition instruction issued by a first target base station, and determining first target base station residence configuration information based on the first target state activation instruction and the first target frequency point acquisition instruction; updating an original measurement file based on the resident configuration information of the first target base station to obtain a first measurement file; when the target base station stays in a second target base station area, receiving a second target state activation instruction and a second target frequency point acquisition instruction issued by a second target base station, and determining second target base station stay configuration information based on the second target state activation instruction and the second target frequency point acquisition instruction; updating the first measurement file based on the resident configuration information of the second target base station to obtain a second measurement file; and if the residence state is switched, acquiring the frequency point information in the second measurement file, and selecting a new frequency point for residence based on the frequency point information.
Furthermore, the logic instructions in the memory 930 may be implemented in 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.
In another aspect, the present invention also provides a computer program product, the computer program product including a computer program, the computer program being stored on a non-transitory computer-readable storage medium, wherein when the computer program is executed by a processor, the computer is capable of executing the cell residence selection method provided by the above methods, and the method includes: waiting to reside in a first target base station area; receiving a first target state activation instruction and a first target frequency point acquisition instruction issued by a first target base station, and determining first target base station residence configuration information based on the first target state activation instruction and the first target frequency point acquisition instruction; updating an original measurement file based on the resident configuration information of the first target base station to obtain a first measurement file; when the target base station stays in a second target base station area, receiving a second target state activation instruction and a second target frequency point acquisition instruction issued by a second target base station, and determining second target base station stay configuration information based on the second target state activation instruction and the second target frequency point acquisition instruction; updating the first measurement file based on the resident configuration information of the second target base station to obtain a second measurement file; and if the residence state is switched, acquiring the frequency point information in the second measurement file, and selecting a new frequency point for residence based on the frequency point information.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium, on which a computer program is stored, the computer program being implemented by a processor to perform the cell camping selection method provided by the above methods, the method comprising: waiting to reside in a first target base station area; receiving a first target state activation instruction and a first target frequency point acquisition instruction issued by a first target base station, and determining first target base station residence configuration information based on the first target state activation instruction and the first target frequency point acquisition instruction; updating an original measurement file based on the resident configuration information of the first target base station to obtain a first measurement file; when the target base station stays in a second target base station area, receiving a second target state activation instruction and a second target frequency point acquisition instruction issued by a second target base station, and determining second target base station stay configuration information based on the second target state activation instruction and the second target frequency point acquisition instruction; updating the first measurement file based on the resident configuration information of the second target base station to obtain a second measurement file; and if the residence state is switched, acquiring the frequency point information in the second measurement file, and selecting a new frequency point for residence based on the frequency point information.
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 method for cell camping selection, comprising:
waiting to reside in a first target base station area;
receiving a first target state activation instruction and a first target frequency point acquisition instruction issued by a first target base station, and determining first target base station residence configuration information based on the first target state activation instruction and the first target frequency point acquisition instruction;
updating an original measurement file based on the resident configuration information of the first target base station to obtain a first measurement file;
when the target base station stays in a second target base station area, receiving a second target state activation instruction and a second target frequency point acquisition instruction issued by a second target base station, and determining second target base station stay configuration information based on the second target state activation instruction and the second target frequency point acquisition instruction;
updating the first measurement file based on the resident configuration information of the second target base station to obtain a second measurement file;
and if the residence state is switched, acquiring the frequency point information in the second measurement file, and selecting a new frequency point for residence based on the frequency point information.
2. The method of claim 1, wherein the updating the original measurement file based on the first target bs camping configuration information to obtain the first measurement file comprises:
if the original measurement file is not empty, clearing the original measurement file;
determining first target frequency point information based on the first target base station residence configuration information, storing the first target frequency point information to a signal list in the original measurement file, and arranging all the target frequency point information in the signal list from high to low according to reference received power (RSRP) to obtain the first measurement file.
3. The cell camping selection method according to claim 1, wherein the updating the first measurement file based on the second target base station camping configuration information to obtain a second measurement file comprises:
if the first measurement file is not empty, resetting the first measurement file;
determining second target frequency point information based on the second target base station residence configuration information, storing the second target frequency point information to a signal list in the first measurement file, arranging all the target frequency point information in the signal list from high to low according to RSRP, and adding a preset priority judgment field to obtain the second measurement file.
4. The cell residence selection method according to claim 1, wherein if the residence state is switched, obtaining the frequency point information in the second measurement file, and selecting a new frequency point for residence based on the frequency point information comprises:
if the network is disconnected or the power is turned off, the second measurement file is acquired after the second target base station area is re-entered, and the frequency point with the highest RSRP is determined to reside;
if the residing is failed, other frequency points with the second-time strong RSRP are sequentially selected for residing until the residing is successful;
and if determining that all the frequency points in the second measurement file are unsuccessfully resided, entering a frequency sweeping process.
5. The cell camping selection method according to claim 1, wherein the first target base station and the second target base station are both of 4G standard or 5G standard.
6. A method for cell camping selection, comprising:
receiving first target base station resident information of a terminal;
and issuing a first target state activation instruction and a first target frequency point acquisition instruction to the terminal so that the terminal can determine the resident configuration information of the first target base station.
7. The cell residence selection method of claim 6, wherein the issuing a first target state activation instruction and a first target frequency point acquisition instruction to the terminal for the terminal to determine residence configuration information of a first target base station comprises:
sending a measurement switch cell carrying an idle state or a deactivated state to the terminal;
sending a base station information set in a preset distribution area to the terminal, wherein the base station information set in the preset distribution area is carried by a measurement configuration cell and a cell pilot frequency carrier list;
and sending a wireless connection instruction carrying a target state measurement period to the terminal, and determining a target frequency point set acquired by the terminal.
8. A method for cell camping selection, comprising:
receiving second target base station resident information of a terminal when the terminal is switched from a first base station area to a second base station area;
and issuing a second target state activation instruction and a second target frequency point acquisition instruction to the terminal so that the terminal can determine the resident configuration information of the second target base station.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of the cell residence selection method according to any of claims 1 to 8.
10. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the steps of the cell camping selection method according to any of claims 1-8.
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