CN112512099B - Cell residence method, terminal and storage medium - Google Patents
Cell residence method, terminal and storage medium Download PDFInfo
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- CN112512099B CN112512099B CN201910873637.4A CN201910873637A CN112512099B CN 112512099 B CN112512099 B CN 112512099B CN 201910873637 A CN201910873637 A CN 201910873637A CN 112512099 B CN112512099 B CN 112512099B
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W48/20—Selecting an access point
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Abstract
The embodiment of the application provides a cell residence method, a terminal and a storage medium, wherein the cell residence method comprises the following steps: acquiring a candidate cell list, and sequencing the cells in the candidate cell list according to a preset sequencing rule; searching at least one cell from the candidate cell list, wherein the at least one cell is used for accessing the first network; the priority of at least one cell in the candidate cell list is improved, and the cells in the candidate cell list are sorted based on the priority of at least one cell to obtain a sorted candidate cell list; and selecting a target cell with high priority from the sorted candidate cell list for residing.
Description
Technical Field
The present application relates to the field of communications, and in particular, to a cell camping method, a terminal, and a storage medium.
Background
For the fifth generation mobile communication technology (5g th The deployment of the network can adopt a Non-independent networking mode (NSA) and an independent networking mode (SA), wherein the NSA mode is a fourth Generation mobile communication technology (4G, 4) th Generation mobile communication technology) independently deploys a control plane (4G carries control signaling), and a 5G and 4G jointly deploy a user plane (5G and 4G carry user plane data) or a 5G independently deploy a user plane (only 5G carries user plane data).
The NSA mode is suitable for a scene covered by a plurality of LTE cells and 5G NR cells, the LTE cells configured with PLMN information supporting 5G NR are broadcasted to the terminal through SIB2, the terminal is resided in the LTE cells to further realize the process of accessing the 5G network, and as the configuration of the LTE network is incomplete, some LTE cells are not configured with the information, when the terminal is resided in the LTE cells not configured with the PLMN information supporting 5G NR, the terminal can not access and use the 5G network, so that the success rate of the terminal residing in a target network is low.
Disclosure of Invention
The embodiment of the application provides a cell residence method, a terminal and a storage medium, which can improve the success rate of residence of the terminal in a target network.
The technical scheme of the application is realized as follows:
the embodiment of the application provides a cell residence method, which comprises the following steps:
acquiring a candidate cell list, and sequencing the cells in the candidate cell list according to a preset sequencing rule;
searching at least one cell from the candidate cell list, wherein the at least one cell is used for accessing a first network;
the priority of the at least one cell in the candidate cell list is improved, and the cells in the candidate cell list are sorted based on the priority of the at least one cell to obtain a sorted candidate cell list;
and selecting a target cell with high priority from the sorted candidate cell list for residing.
In the above method, the obtaining the candidate cell list includes:
when cell search is carried out, judging that the cell selection condition is met, and carrying out cell search corresponding to a second network to obtain a group of candidate cells;
sorting the group of candidate cells according to the signal strength to obtain the candidate cell list;
the searching at least one cell from the candidate cell list comprises:
and searching the at least one cell from the candidate cell list by utilizing a preset cell list, wherein the cells in the preset cell list are in a second network and are configured with support information for supporting the first network.
In the above method, the obtaining the candidate cell list includes:
when cell reselection is carried out, judging that the cell selection condition is met, and acquiring a group of candidate neighbor cells of a current cell where a terminal is located, wherein the current cell is a cell corresponding to a second network;
according to the priority and the signal intensity, sequencing the group of candidate neighbor cells to obtain a candidate cell list;
the searching at least one cell from the candidate cell list comprises:
and searching the at least one cell from the candidate cell list by using a preset target adjacent cell field.
In the above method, before the obtaining the candidate cell list, the method further includes:
and when the first network existence identification is received in a first cell corresponding to the second network, adding the first cell to the preset cell list.
In the above method, when the first network presence identifier is received in the first cell corresponding to the second network, adding the first cell to the preset second cell list includes:
when a first system message is received in the first cell, searching a first field in the first system message, wherein the first field indicates that a Public Land Mobile Network (PLMN) corresponding to the first network exists;
when the first field is found in the first system message, characterizing that the first network presence identifier is received at the first cell;
recording a cell identification parameter of the first cell;
and adding the first cell into the preset cell list by taking the cell identification parameter as an identifier.
In the above method, the searching the at least one cell from the candidate cell list by using the preset cell list includes:
matching the preset cell list with the candidate cell list;
adding the preset cell to the at least one cell when a preset cell in the preset cell list matches the candidate cell list.
In the above method, the increasing the priority of the at least one cell in the candidate cell list includes:
increasing the priority of the at least one cell in the candidate cell list by adding a preset offset value to the signal strength of the at least one cell.
In the above method, the searching for the at least one cell from the candidate cell list using a preset target neighbor cell field includes:
and searching the at least one cell corresponding to the preset target neighbor cell field from the candidate cell list.
In the above method, the preset target neighbor cell field includes: the second system message is stored with second network neighbor cell information, and the third system message is stored with first network neighbor cell information, wherein the first network is configured in the second network neighbor cell information, and the priority of the third system message is higher than that of the second system message.
In the above method, the increasing the priority of the at least one cell in the candidate cell list includes:
adjusting the priority of the preset target neighbor cell field to be the highest priority;
increasing the signal strength of the at least one cell by a preset offset value to increase the priority of the at least one cell in the candidate cell list.
The embodiment of the application provides a terminal, which comprises:
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring a candidate cell list, and cells in the candidate cell list are sorted according to a preset sorting rule;
a searching unit, configured to search for at least one cell from the candidate cell list, where the at least one cell is used to access a first network;
a sorting unit, configured to increase a priority of the at least one cell in the candidate cell list, and sort the cells in the candidate cell list based on the priority of the at least one cell to obtain a sorted candidate cell list;
and the cell residing unit is used for selecting a target cell with high priority from the sorted candidate cell list for residing.
In the above terminal, the terminal further includes: a cell search unit;
the cell searching unit is used for judging that the cell selection condition is met when cell searching is carried out, and carrying out cell searching corresponding to a second network to obtain a group of candidate cells;
the sorting unit is further configured to sort the group of candidate cells according to the signal strength to obtain the candidate cell list;
the searching unit is further configured to search the at least one cell from the candidate cell list by using a preset cell list, where a cell in the preset cell list is in a second network and is configured with support information for supporting the first network.
In the terminal, the obtaining unit is further configured to determine that the cell selection condition is met when performing cell reselection, and obtain a group of candidate neighbor cells of a current cell in which the terminal is located, where the current cell is a cell corresponding to a second network;
the sorting unit is further configured to sort the group of candidate neighbor cells according to priority and signal strength to obtain the candidate cell list;
the searching unit is further configured to search the at least one cell from the candidate cell list by using a preset target neighboring cell field.
In the above terminal, the terminal further includes: an adding unit;
the adding unit is configured to add the first cell to the preset cell list when the first network presence identifier is received in the first cell corresponding to the second network.
In the above terminal, the terminal further includes: a recording unit;
the searching unit is further configured to search a first field from a first system message when the first system message is received in the first cell, where the first field indicates that a Public Land Mobile Network (PLMN) corresponding to the first network exists; when the first field is found in the first system message, characterizing that the first network presence identifier is received at the first cell;
the recording unit is configured to record a cell identification parameter of the first cell;
and the adding unit is used for adding the first cell into the preset cell list by taking the cell identification parameter as an identifier.
In the above terminal, the terminal further includes: a matching unit and a determining unit;
the matching unit is configured to match the preset cell list with the candidate cell list;
the adding unit is configured to add the preset cell to the at least one cell when a preset cell in the preset cell list matches the candidate cell list.
In the above terminal, the sorting unit is further configured to increase the priority of the at least one cell in the candidate cell list by adding a preset offset value to the signal strength of the at least one cell.
In the above terminal, the searching unit is further configured to search the at least one cell corresponding to the preset target neighboring cell field from the candidate cell list.
In the above terminal, the preset target neighbor cell field includes: the second system message is stored with second network neighbor cell information, and the third system message is stored with first network neighbor cell information, wherein the first network is configured in the second network neighbor cell information, and the priority of the third system message is higher than that of the second system message.
In the above terminal, the sorting unit is further configured to adjust the priority of the preset target neighboring cell field to the highest priority; increasing the signal strength of the at least one cell by a preset offset value to increase the priority of the at least one cell in the candidate cell list.
An embodiment of the present application provides a terminal, including: a processor, a memory, and a communication bus; the processor, when executing the operating program stored in the memory, implements the method of any of the above.
The embodiment of the application provides a storage medium, on which a computer program is stored, and the computer program is applied to a terminal, and when the computer program is executed by a processor, the computer program realizes the method of any one of the above.
The embodiment of the application provides a cell residence method, a terminal and a storage medium, wherein the method comprises the following steps: acquiring a candidate cell list, and sequencing the cells in the candidate cell list according to a preset sequencing rule; searching at least one cell from the candidate cell list, wherein the at least one cell is used for accessing the first network; the priority of at least one cell in the candidate cell list is improved, and the cells in the candidate cell list are sorted based on the priority of at least one cell to obtain a sorted candidate cell list; and selecting a target cell with high priority from the sorted candidate cell list for residing. By adopting the implementation scheme, the terminal searches at least one cell for accessing the first network from the candidate cell list, and then improves the priority of the at least one cell in the candidate cell list.
Drawings
Fig. 1 is a first flowchart of a cell camping method according to an embodiment of the present application;
fig. 2 is a second flowchart of a cell camping method according to an embodiment of the present disclosure;
fig. 3 is a third flowchart of a cell camping method according to an embodiment of the present application;
fig. 4 is a first schematic structural diagram of a terminal according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present application.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the application. And are not intended to limit the present application.
Example one
An embodiment of the present application provides a cell camping method, which may include, as shown in fig. 1:
s101, a candidate cell list is obtained, and cells in the candidate cell list are sorted according to a preset sorting rule.
The cell residing method provided by the embodiment of the application is suitable for residing in a scene of a cell capable of accessing a 5G network during cell selection or cell reselection.
Optionally, when the terminal performs cell search or reselects a cell, the terminal determines that a cell selection condition is met, and specifically selects according to an actual situation, which is not specifically limited in the embodiment of the present application.
Specifically, when the terminal detects a power-on instruction or enters a network coverage area from a blind area, the terminal needs to perform cell search, at this time, the terminal judges that a cell selection condition is met, the terminal performs cell search corresponding to the second network to obtain a group of candidate cells, the group of candidate cells includes cells corresponding to the searched second network, and the terminal sorts the group of candidate cells according to signal strength to obtain a candidate cell list.
In this embodiment, the second network is an LTE network, and the cell corresponding to the second network is an LTE cell.
The terminal sorts a group of candidate cells according to the sequence of the signal intensity from high to low to obtain a candidate cell list.
Optionally, the Signal strength includes Reference Signal Receiving Power (RSRP) strength, LTE Reference Signal Receiving Quality (RSRQ), signal to Interference plus Noise Ratio (SINR), and the like, which is specifically selected according to actual situations, and the embodiment of the present application is not specifically limited.
Specifically, when the terminal resides in the current cell, in the idle mode, the terminal performs cell reselection, and the current cell is a cell corresponding to the second network, at this time, the terminal determines that the cell selection condition is satisfied, the terminal obtains a set of candidate neighbor cells of the current cell where the terminal is located through the measurement control message, and then the terminal sorts the set of candidate neighbor cells according to the priority and the signal strength to obtain a candidate cell list.
The terminal sorts the different fields according to a preset priority level, and sorts the adjacent cells in the same field according to the sequence from high to low of the signal strength to obtain a candidate cell list.
S102, at least one cell is searched from the candidate cell list, and the at least one cell is used for accessing the first network.
After the terminal acquires the candidate cell list, the terminal searches at least one cell for accessing the first cell from the candidate cell list.
In the embodiment of the present application, the first network is a 5G NR network.
Optionally, when the terminal performs cell search, the terminal searches for at least one cell from the candidate cell list by using a preset cell list, where a cell in the preset cell list is in the second network and is configured with support information for supporting the first network; when the terminal reselects the cell, the terminal searches at least one cell from the candidate cell list by using a preset target neighbor cell field, and specifically selects according to an actual situation.
Specifically, when the terminal performs cell search, the terminal matches a preset cell list with a candidate cell list; and when the preset cells in the preset cell list are matched with the candidate cell list, the terminal adds the preset cells to at least one cell.
Further, before the terminal acquires the candidate cell list, when the terminal receives the first network existence identifier in the first cell corresponding to the second network, the terminal adds the first cell to the preset cell list. Specifically, when the terminal receives a first system message in a first cell, the terminal searches for a first field from the first system message, where the first field indicates that a Public Land Mobile Network (PLMN) corresponding to a first Network exists; when the terminal finds the first field from the first system message, the representation terminal receives a first network existence identification in the first cell; the terminal records a cell identification parameter of a first cell; and adding the first cell into a preset cell list by taking the cell identification parameter as an identifier.
It should be noted that the first cell is an LTE cell supporting Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access (EUTRA) and NR Dual Connectivity (EN-DC); specifically, the LTE cell supporting EN-DC refers to an LTE cell in which the LTE base station indicates the existence of the first network PLMN through the SIB2 PLMN-InfoList-r15 field (the first field).
Specifically, when the terminal performs cell reselection, the terminal searches for at least one cell corresponding to a preset target neighbor cell field from the candidate cell list.
In this embodiment of the present application, the preset target neighboring cell field includes a second system message storing second network neighboring cell information and a third system message storing first network neighboring cell information, where the second network neighboring cell information is configured with the first network, and a priority of the third system message is higher than a priority of the second system message.
The second system message of the second network neighbor cell information is SIB2 of LTE neighbor cell information configured with 5G NR information, and the third system message of the first network neighbor cell information is SIB24 of the 5G NR neighbor cell information, where a priority of the SIB24 is higher than a priority of the SIB 2.
It should be noted that, in NSA networking, since the 5G NR base station and the 4G LTE base station jointly cover, the terminal accesses the 5G network by camping on an LTE cell configured with 5G NR information, and SIB2 is used to indicate an LTE neighbor cell supporting EN-DC, the terminal accesses the 5G network by camping on the LTE neighbor cell indicated by SIB 2; in the SA network, a 5G network is directly deployed in a 5G cell, a terminal preferentially reselects the 5G cell, and the SIB24 is used for indicating a 5G NR neighbor cell, so the terminal accesses the 5G network by residing in the 5G NR neighbor cell indicated by the SIB24, thereby ensuring the service of the 5G network in the SA network, reducing the probability of using EN-DC dual connection by UE, and further reducing the power consumption of the terminal. When the terminal receives the SIB2 and the SIB24 in the neighbor cell list of the current LTE cell at the same time and the signal strengths of the neighbor cells indicated by the SIB2 and the SIB24 both meet the preset threshold, the terminal preferentially selects the 5G NR neighbor cell indicated by the SIB24 for cell residence.
S103, improving the priority of the at least one cell in the candidate cell list, and sequencing the cells in the candidate cell list based on the priority of the at least one cell to obtain a sequenced candidate cell list.
After the terminal finds at least one cell for accessing the first network from the candidate cell list, the terminal increases the priority of the at least one cell in the candidate cell list, and ranks the cells in the candidate cell list based on the priority of the at least one cell to obtain a ranked candidate cell list.
In the embodiment of the application, when the terminal searches the cell, the terminal increases the preset offset value for the signal strength value of at least one cell so as to improve the priority of the at least one cell in the candidate cell list; and finally, the terminal reorders the candidate cell list to obtain the ordered candidate cell list. Thus, when the signal strength of at least one cell meets the preset threshold value, the at least one cell can be preferentially selected.
In the embodiment of the application, when the terminal reselects the cell, the terminal adjusts the priority of the field of the preset target neighbor cell to be the highest priority; increasing the signal intensity value of at least one cell by a preset offset value so as to improve the ranking of at least one cell in the candidate cell list; and then, re-sequencing the candidate cell list to obtain a sequenced candidate cell list.
Illustratively, after acquiring a neighbor cell list (candidate cell list) of a current LTE cell, the terminal searches for SIB2 and SIB24 from the neighbor cell list, and forcibly sets the priority of SIB24 and SIB2 to 7 (highest priority), and performs reselection according to a high-priority cell reselection rule. If the priority of at least one cell is already 7, when the terminal performs the reselection process with the same priority, the terminal increases the RSRP of the at least one cell by a certain offset value (offset) to increase the signal strength ranking of the at least one cell during the reselection with the same priority, so that the at least one cell has a greater chance to be the target cell.
And S104, selecting a target cell with high priority from the sorted candidate cell list for residing.
And after the terminal obtains the sorted candidate cell list, the terminal selects a target cell with high priority from the sorted candidate cell list for residing.
In the embodiment of the application, the terminal searches a target cell with the highest priority from the sorted candidate cell list and resides in the target cell.
In the embodiment of the application, in NSA networking, for a terminal supporting EN-DC dual connectivity, when the terminal receives an LTE SIB2 indication that a 5G NR PLMN exists, a 5G icon is displayed on a display interface; and activates the 5G modem in preparation for receiving an indication of the network to further establish a 5G NR Secondary Cell Group (SCG).
In the embodiment of the application, in the SA networking, the terminal directly resides in the 5G NR cell and accesses the 5G network.
It can be understood that the terminal stores the LTE cell configured with the 5G NR information to a preset LTE cell list in advance, and when performing cell search, the terminal increases the priority of the LTE cell in the LTE cell list, so that the probability of the LTE cell being camped can be increased, and the on-network rate of the terminal 5G is increased; the terminal is further provided with a preset target adjacent cell list, and when the terminal performs cell reselection, the terminal improves the priority of adjacent cells in the preset target adjacent cell list, so that the probability of reselecting the adjacent cells can be improved, and the 5G on-line rate of the terminal is further improved.
Example two
An embodiment of the present application provides a cell camping method, which is applied in a scenario in which a terminal camps in a 5G NR cell when performing cell search, and as shown in fig. 2, the method may include:
s201, when the terminal receives the 5G NR network existence identification in the first cell, the terminal adds the first cell to a preset LTE cell list, and the first cell is an LTE service cell.
It should be noted that the 5G NR network presence identifier in this embodiment is the first network presence identifier in the first embodiment, and the preset LTE cell list in this embodiment is the preset cell list in the first embodiment.
In the embodiment of the application, the first cell is an LTE serving cell, and when the terminal receives a first system message SIB2 in the first cell, the terminal searches a first field from the SIB2, where the first field indicates that a 5G NR public land mobile network PLMN exists; when the terminal finds the first field from the SIB2, the terminal is characterized to receive a 5G NR network existence identifier in the first cell; at this time, the terminal records a tracking area identification TAC and a physical cell identification PCI of the first cell, wherein the tracking area identification TAC and the physical cell identification PCI form a cell identification parameter of the first cell; and the terminal adds the first cell to a preset LTE cell list by taking the TAC and the PCI as identifiers.
It should be noted that the first cell is an LTE cell supporting EN-DC; specifically, the LTE cell supporting EN-DC refers to an LTE cell in which the LTE base station indicates the existence of the 5G NR PLMN through the SIB2 PLMN-InfoList-r15 field (the first field).
S202, when the terminal searches the cell, the terminal judges that the cell selection condition is met, and the terminal searches the LTE cell to obtain a group of candidate cells.
After the terminal adds the first cell to the preset LTE cell list, the terminal searches the cell, judges that the cell selection condition is met, and searches the LTE cell to obtain a group of candidate cells.
In the embodiment of the application, when the terminal detects a power-on instruction or enters a network coverage area from a blind area, the terminal needs to perform cell search, at this time, the terminal judges that a cell selection condition is met, the terminal performs LTE cell search to obtain a group of candidate cells, and the group of candidate cells comprises the searched LTE cells.
S203, the terminal sorts a group of candidate cells according to the Reference Signal Received Power (RSRP) strength to obtain a candidate cell list.
After the terminal searches for the LTE cell to obtain a group of candidate cells, the terminal sorts the group of candidate cells according to the RSRP strength to obtain a candidate cell list.
In the embodiment of the application, the terminal ranks a group of candidate cells according to the sequence of RSRP intensity from high to low to obtain a candidate cell list.
S204, the terminal searches at least one cell from the candidate cell list by using the preset LTE cell list, and the LTE cell in the preset LTE cell list is configured with 5G NR information.
After the terminal sorts a group of candidate cells to obtain a candidate cell list, the terminal searches at least one cell from the candidate cell list by using a preset LTE cell list.
In the embodiment of the application, the terminal matches a preset LTE cell list with a candidate cell list; when the terminal judges that a target LTE cell (a preset cell) in the preset LTE cell list is matched with the candidate cell list, the terminal adds the target LTE cell to at least one cell.
S205, the terminal increases a preset offset value for the RSRP strength value of at least one cell, so as to improve the priority of the first cell in the candidate cell list.
And after the terminal searches at least one cell from the candidate cell list, the terminal increases a preset offset value for the RSRP strength value of the at least one cell so as to improve the priority of the first cell in the candidate cell list.
S206, the terminal reorders the candidate cell list to obtain a ranked candidate cell list.
And after the terminal increases the preset offset value for the RSRP strength value of at least one cell, the terminal reorders the candidate cell list to obtain a ranked candidate cell list.
And S207, the terminal searches a target cell with the highest priority from the sorted candidate cell list and resides in the target cell.
And after the terminal obtains the ordered candidate cell list, the terminal searches a target cell with the highest priority from the ordered candidate cell list and resides in the target cell.
In the embodiment of the application, in NSA networking, for a terminal supporting EN-DC dual connectivity, when the terminal receives an LTE SIB2 indication that a 5G NR PLMN exists, a 5G icon is displayed on a display interface; and activates the 5G modem in preparation for receiving an indication of further establishment of the 5G NR SCG for the network.
In the embodiment of the application, in the SA networking, the terminal directly resides in the 5G NR cell and accesses the 5G network.
It can be understood that the terminal stores the LTE cell configured with the 5G NR information to a preset LTE cell list in advance, and when performing cell search, the terminal increases the priority of the LTE cell in the LTE cell list, so that the probability that the LTE cell is camped can be increased, and the network availability of the terminal 5G is increased.
EXAMPLE III
An embodiment of the present application provides a cell camping method, which is applied to a scenario that a terminal camps in a 5G NR cell when performing cell reselection, and as shown in fig. 3, the method may include:
s301, when the terminal reselects the cell, the terminal judges that the cell selection condition is met, and the terminal acquires a group of candidate neighbor cells of the current LTE cell where the terminal is located.
It should be noted that the current LTE cell in the embodiment of the present application is the current cell in the first embodiment.
In the embodiment of the application, under the condition that the terminal resides in the current LTE cell, the terminal reselects the cell in an idle mode, at the moment, the terminal judges that the cell selection condition is met, and the terminal acquires a group of candidate neighbor cells of the current LTE cell in which the terminal is located through the measurement control message.
S302, the terminal sorts a group of candidate adjacent cells according to the priority and the RSRP strength to obtain a candidate cell list.
After the terminal acquires a group of candidate neighbor cells of a current LTE cell where the terminal is located, the terminal sorts the group of candidate neighbor cells according to priority and RSRP strength to obtain a candidate cell list.
In the embodiment of the application, different fields in the measurement control message correspond to different types of adjacent cells, the terminal sorts the different fields according to the preset priority, and sorts the adjacent cells in the same field according to the sequence from high to low of the RSRP strength to obtain a candidate cell list.
S303, the terminal searches for at least one cell from the candidate cell list by using the field of the preset target adjacent cell.
In the embodiment of the application, the terminal searches at least one cell corresponding to the field of the preset target neighbor cell from the candidate cell list.
Optionally, the preset target neighboring cell field includes: SIB2 storing LTE neighbor cell information configuring 5G NR information and SIB24 storing 5G NR neighbor cell information, wherein the priority of SIB24 is higher than that of SIB 2. The specific choice is made according to actual conditions, and the embodiment of the present application is not specifically limited.
It should be noted that, in NSA networking, since the 5G NR base station and the 4G LTE base station jointly cover, the terminal accesses the 5G network by camping on an LTE cell configured with 5G NR information, and SIB2 is used to indicate an LTE neighbor cell supporting EN-DC, the terminal accesses the 5G network by camping on the LTE neighbor cell indicated by SIB 2; in the SA network, a 5G network is directly deployed in a 5G cell, a terminal preferentially reselects the 5G cell, and the SIB24 is used for indicating a 5G NR neighbor cell, so the terminal accesses the 5G network by residing in the 5G NR neighbor cell indicated by the SIB24, thereby ensuring the service of the 5G network in the SA network, reducing the probability of using EN-DC dual connection by UE, and further reducing the power consumption of the terminal. When the terminal receives the SIB2 and the SIB24 in the neighbor cell list of the current LTE cell at the same time and the signal strengths of the neighbor cells indicated by the SIB2 and the SIB24 both meet the preset threshold, the terminal preferentially selects the 5G NR neighbor cell indicated by the SIB24 for cell residence.
S304, the terminal adjusts the priority of the field of the preset target neighbor cell to be the highest priority.
When the terminal finds at least one cell from the candidate cell list, the terminal needs to increase the priority of the at least one cell, and firstly, the terminal adjusts the priority of a field of a preset target adjacent cell corresponding to the at least one cell to be the highest priority.
S305, the terminal increases the RSRP strength value of at least one cell by a preset offset value so as to improve the ranking of the at least one cell in the candidate cell list.
After the terminal adjusts the priority of the field of the preset target neighbor cell to be the highest priority, the terminal increases the RSRP strength value of at least one cell by a preset offset value, and then the ranking of the at least one cell in the candidate cell list is improved.
S306, the terminal reorders the candidate cell list to obtain a ranked candidate cell list.
And after the terminal increases the RSRP strength value of at least one cell by a preset offset value, the terminal reorders the candidate cell list to obtain a ranked candidate cell list.
S307, the terminal searches a target cell with the highest priority from the sorted candidate cell list and resides in the target cell.
And after the terminal obtains the ordered candidate cell list, the terminal searches a target cell with the highest priority from the ordered candidate cell list and resides in the target cell.
Here, the description of S307 in the embodiment of the present invention is identical to the description of S207, and is not repeated here.
It can be understood that the terminal is further provided with a preset target neighbor cell list, and when the terminal performs cell reselection, the terminal increases the priority of neighbor cells in the preset target neighbor cell list, so that the probability of reselecting the neighbor cells can be increased, and the network availability of the terminal 5G is increased.
Example four
An embodiment of the present application provides a terminal 1, as shown in fig. 4, where the terminal 1 may include:
an obtaining unit 10, configured to obtain a candidate cell list, where cells in the candidate cell list are sorted according to a preset sorting rule;
a searching unit 11, configured to search for at least one cell from the candidate cell list, where the at least one cell is used to access a first network;
a sorting unit 12, configured to increase a priority of the at least one cell in the candidate cell list, and sort the cells in the candidate cell list based on the priority of the at least one cell to obtain a sorted candidate cell list;
a cell residence unit 13, configured to select a target cell with a high priority from the sorted candidate cell list for residence.
Optionally, the terminal further includes: a cell search unit 14;
the cell search unit 14 is configured to determine that the cell selection condition is met when performing cell search, and perform cell search corresponding to the second network to obtain a set of candidate cells;
the sorting unit 12 is further configured to sort the group of candidate cells according to the signal strength to obtain the candidate cell list;
the searching unit 11 is further configured to search the at least one cell from the candidate cell list by using a preset cell list, where a cell in the preset cell list is in a second network and is configured with support information for supporting the first network.
Optionally, the obtaining unit 10 is further configured to determine that the cell selection condition is met when performing cell reselection, and obtain a set of candidate neighbor cells of a current cell in which a terminal is located, where the current cell is a cell corresponding to a second network;
the sorting unit 12 is further configured to sort the group of candidate neighbor cells according to priority and signal strength to obtain the candidate cell list;
the searching unit 11 is further configured to search the at least one cell from the candidate cell list by using a preset target neighboring cell field.
Optionally, the terminal further includes: an adding unit 15;
the adding unit 15 is configured to add the first cell to the preset cell list when the first network existence identifier is received in the first cell corresponding to the second network.
Optionally, the terminal further includes: a recording unit 16;
the searching unit 11 is further configured to search a first field from the first system message when the first system message is received in the first cell, where the first field indicates that a public land mobile network PLMN corresponding to the first network exists; when the first field is found in the first system message, characterizing that the first network presence identifier is received at the first cell;
the recording unit 16 is configured to record a cell identification parameter of the first cell;
an adding unit 15, configured to add the first cell to the preset cell list with the cell identification parameter as an identifier.
Optionally, the terminal further includes: a matching unit 17 and a determination unit 18;
the matching unit 17 is configured to match the preset cell list with the candidate cell list;
the determining unit 18 is configured to add the preset cell to the at least one cell when a preset cell in the preset cell list matches the candidate cell list.
Optionally, the sorting unit 12 is further configured to increase the priority of the at least one cell in the candidate cell list by adding a preset offset value to the signal strength of the at least one cell.
Optionally, the searching unit 11 is further configured to search the at least one cell corresponding to the preset target neighboring cell field from the candidate cell list.
Optionally, the preset target neighboring cell field includes: the second system message is stored with second network neighbor cell information, and the third system message is stored with first network neighbor cell information, wherein the first network is configured in the second network neighbor cell information, and the priority of the third system message is higher than that of the second system message.
Optionally, the sorting unit 12 is further configured to adjust the priority of the preset target neighboring cell field to be the highest priority; increasing the signal strength of the at least one cell by a preset offset value to increase the priority of the at least one cell in the candidate cell list.
The terminal obtains a candidate cell list, and the cells in the candidate cell list are sorted according to a preset sorting rule; searching at least one cell from the candidate cell list, wherein the at least one cell is used for accessing a first network; the priority of at least one cell in the candidate cell list is improved, and the cells in the candidate cell list are sorted based on the priority of at least one cell to obtain a sorted candidate cell list; and selecting a target cell with high priority from the sorted candidate cell list for residing. Therefore, according to the terminal provided by the embodiment, the terminal stores the LTE cell configured with the 5G NR information to the preset LTE cell list in advance, and when cell search is performed, the terminal increases the priority of the LTE cell in the LTE cell list, so that the probability that the LTE cell is resided can be increased, and the network availability of the terminal 5G is increased; the terminal is further provided with a preset target adjacent cell list, and when the terminal performs cell reselection, the terminal improves the priority of adjacent cells in the preset target adjacent cell list, so that the probability of reselecting the adjacent cells can be improved, and the 5G on-line rate of the terminal is further improved.
Fig. 5 is a schematic diagram of a second composition structure of the terminal 1 provided in the embodiment of the present application, and in practical applications, based on the same public concept of the foregoing embodiment, as shown in fig. 5, the terminal 1 of the present embodiment includes: a processor 19, a memory 110, and a communication bus 111.
In a Specific embodiment, the acquiring unit 10, the searching unit 11, the sorting unit 12, the cell residing unit 13, the cell searching unit 14, the adding unit 15, the recording unit 16, the matching unit 17, and the determining unit 18 may be implemented by a Processor 19 located on the terminal 1, and the Processor 19 may be at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing terminal (DSPD), a Digital Signal Processing Device (DSPD), a Programmable Logic terminal (PLD), a Field Programmable Gate Array (FPGA), a CPU, a controller, a microcontroller, and a microprocessor. It is understood that the electronic device for implementing the above-mentioned processor function may be other devices, and the embodiment is not limited in particular.
In the embodiment of the present application, the communication bus 111 is used for realizing connection communication between the processor 19 and the memory 110; the processor 19 executes the operating program stored in the memory 110 to implement the cell camping method according to the first to third embodiments.
An embodiment of the present application provides a storage medium, on which a computer program is stored, where the computer readable storage medium stores one or more programs, and the one or more programs are executable by one or more processors and applied to a terminal, and the computer program implements a cell residence method according to the first embodiment.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application.
Claims (13)
1. A method for cell camping, the method comprising:
when a first system message is received in a first cell, searching a first field from the first system message, wherein the first field represents that a first network existence identifier is received in the first cell, recording a cell identification parameter of the first cell, and adding the first cell into a preset cell list by taking the cell identification parameter as the identifier;
acquiring a candidate cell list, and sorting cells in the candidate cell list according to a preset sorting rule;
searching at least one cell from the candidate cell list by utilizing a preset cell list, wherein the at least one cell is used for accessing a first network;
the priority of the at least one cell in the candidate cell list is improved, and the cells in the candidate cell list are sorted according to the priority and the signal strength based on the priority of the at least one cell to obtain a sorted candidate cell list;
and selecting a target cell with high priority from the sorted candidate cell list for residing.
2. The method of claim 1, wherein obtaining the candidate cell list comprises:
when the cell search is carried out, judging that the cell selection condition is met, and carrying out the cell search corresponding to the second network to obtain a group of candidate cells;
according to the signal intensity, the candidate cells are ranked to obtain a candidate cell list;
the searching at least one cell from the candidate cell list comprises:
and searching the at least one cell from the candidate cell list by utilizing a preset cell list, wherein the cells in the preset cell list are in a second network and are configured with support information for supporting the first network.
3. The method of claim 1, wherein obtaining the candidate cell list comprises:
when cell reselection is carried out, judging that the cell selection condition is met, and acquiring a group of candidate neighbor cells of a current cell where a terminal is located, wherein the current cell is a cell corresponding to a second network;
sorting the group of candidate neighbor cells according to the priority and the signal strength to obtain the candidate cell list;
the searching at least one cell from the candidate cell list comprises:
and searching the at least one cell from the candidate cell list by using a preset target adjacent cell field.
4. The method of claim 2, wherein before the obtaining the candidate cell list, the method further comprises:
and when the first network existence identification is received in a first cell corresponding to the second network, adding the first cell to the preset cell list.
5. The method according to claim 4, wherein the adding the first cell to the preset second cell list when the first network presence identifier is received in the first cell corresponding to the second network comprises:
when a first system message is received in the first cell, searching a first field from the first system message, wherein the first field indicates that a Public Land Mobile Network (PLMN) corresponding to the first network exists;
when the first field is found in the first system message, characterizing that the first network presence identifier is received at the first cell;
recording a cell identification parameter of the first cell;
and adding the first cell into the preset cell list by taking the cell identification parameter as an identifier.
6. The method of claim 2, wherein the searching the at least one cell from the candidate cell list using a preset cell list comprises:
matching the preset cell list with the candidate cell list;
adding the preset cell to the at least one cell when a preset cell in the preset cell list matches the candidate cell list.
7. The method of claim 2, wherein the increasing the priority of the at least one cell in the candidate cell list comprises:
increasing the priority of the at least one cell in the candidate cell list by increasing a preset offset value for the signal strength of the at least one cell.
8. The method according to claim 3, wherein the searching for the at least one cell from the candidate cell list using the preset target neighbor cell field comprises:
and searching the at least one cell corresponding to the preset target neighbor cell field from the candidate cell list.
9. The method of claim 8, wherein the preset target neighbor cell field comprises: the second system message is stored with second network neighbor cell information, and the third system message is stored with first network neighbor cell information, wherein the first network is configured in the second network neighbor cell information, and the priority of the third system message is higher than that of the second system message.
10. The method of claim 3, wherein the increasing the priority of the at least one cell in the candidate cell list comprises:
adjusting the priority of the preset target neighbor cell field to be the highest priority;
increasing the signal strength of the at least one cell by a preset offset value to increase the priority of the at least one cell in the candidate cell list.
11. A terminal, characterized in that the terminal comprises:
an adding unit, configured to search a first field from a first system message when the first system message is received in a first cell, where the first field indicates that a first network existence identifier is received in the first cell, record a cell identification parameter of the first cell, and add the first cell to a preset cell list with the cell identification parameter as an identifier;
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring a candidate cell list, and cells in the candidate cell list are sorted according to a preset sorting rule;
a searching unit, configured to search at least one cell from the candidate cell list by using a preset cell list, where the at least one cell is used for accessing a first network;
a sorting unit, configured to increase a priority of the at least one cell in the candidate cell list, and sort the cells in the candidate cell list according to the priority and the signal strength based on the priority of the at least one cell, so as to obtain a sorted candidate cell list;
and the cell residing unit is used for selecting a target cell with high priority from the sorted candidate cell list for residing.
12. A terminal, characterized in that the terminal comprises: a processor, a memory, and a communication bus; the processor, when executing the execution program stored in the memory, implements the method of any of claims 1-10.
13. A storage medium having stored thereon a computer program for application to a terminal, characterized in that the computer program, when being executed by a processor, is adapted to carry out the method according to any one of claims 1-10.
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