CN110958649B - Reselection method, terminal and storage medium - Google Patents
Reselection method, terminal and storage medium Download PDFInfo
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- CN110958649B CN110958649B CN201811126044.3A CN201811126044A CN110958649B CN 110958649 B CN110958649 B CN 110958649B CN 201811126044 A CN201811126044 A CN 201811126044A CN 110958649 B CN110958649 B CN 110958649B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
Abstract
The invention provides a reselection method, a terminal and a storage medium, wherein the method comprises the following steps: a first terminal acquires identifiers of N closed user groups corresponding to a second base station, wherein the identifiers of the closed user groups are used for indicating that the second base station is in a failure weakening mode, and the first terminal belongs to the N closed user groups; and the first terminal measures a second cell covered by the second base station, and reselects the third cell from the first cell if the identifier of the closed user group broadcasted by the third cell is the same as the identifier of any one of the N closed user groups acquired by the first terminal and the signal quality of the third cell is greater than or equal to a preset threshold value. The terminal can access the base station with weakened fault, and further can communicate with the terminal in the coverage range of the base station.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a reselection method, a terminal, and a storage medium.
Background
The operation of the base station based on the broadband digital trunking system is controlled by the network side, and when the base station detects that a link between the base station and the network side fails, the base station automatically switches to a work mode of weakening failure. The failure weakening mode is based on an important function in a broadband trunking system, and means that when a base station of the trunking system and a physical link at a network side are interrupted, the base station can still provide basic trunking services for users within a coverage range of the base station, so that the influence degree of the network physical link or equipment failure on communication is reduced, and normal operation of services of trunking users is ensured to the maximum extent.
In a multi-base-station networking scenario, when a transmission failure of one base station enters a failure weakening state, a terminal located in an overlapping coverage area of the base station and an adjacent base station may reside in a cell of the adjacent base station. In the prior art, the terminal cannot access the base station in the failure weakening mode, so that the terminal cannot communicate with the terminal covered by the base station in the failure weakening mode.
Disclosure of Invention
The invention provides a reselection method, a terminal and a storage medium, wherein the terminal can be accessed to a base station with weakened failure and can further communicate with the terminal within the coverage range of the base station.
A first aspect of the present invention provides a reselection method, where a first terminal is located in a first cell covered by a first base station, and the first base station is in a non-failure-weakened mode, including:
a first terminal acquires identifiers of N closed user groups corresponding to a second base station, wherein the identifiers of the closed user groups are used for indicating that the second base station is in a failure weakening mode, the first terminal belongs to the N closed user groups, and N is an integer greater than 0;
the first terminal measures N second cells covered by the second base station, and if the fact that the identifier of the closed user group broadcasted by the third cell is the same as the identifier of any one of the N closed user groups acquired by the first terminal and the signal quality of the third cell is greater than or equal to a preset threshold value is measured, the third cell is reselected to the third cell from the first cell, and the third cell is a cell in the second cells.
Optionally, before the first terminal measures N second cells covered by the second base station, the method further includes:
the first terminal establishes a closed user group list according to the identifiers of the N closed user groups, wherein the closed user group list comprises the identifiers of M closed user groups, and M is an integer less than or equal to N;
if the identifier of the closed subscriber group broadcasted by the third cell is measured to be the same as the identifier of any one of the N closed subscriber groups acquired by the first terminal, and the signal quality of the third cell is greater than or equal to a preset threshold, reselecting the third cell from the first cell, including:
and if the first terminal measures that the identifier of the closed user group broadcasted by the third cell is the same as the identifier of any one of the M closed user groups in the closed user group list and the signal quality of the third cell is greater than or equal to a preset threshold value, reselecting the third cell from the first cell.
Optionally, the establishing, by the first terminal, a closed user group list according to the identifiers of the N closed user groups includes:
the first terminal displays the identifications of the N closed user groups;
and establishing a closed user group list according to a selection instruction of the user for the identifications of the N closed user groups.
Optionally, the establishing, by the first terminal, a closed user group list according to the identifiers of the N closed user groups includes:
the first terminal displays the geographical positions of N second cells covered by the second base station according to the mapping relation between the identifier of each closed user group and the geographical position of the corresponding second cell covered by the second base station;
and establishing a closed user group list according to the selection instruction of the user on the geographical positions of the N second cells covered by the second base station.
Optionally, the method further includes:
and if the first terminal measures that the identifiers of the closed user groups broadcasted by the plurality of third cells are the same as the identifier of any one of the N closed user groups acquired by the first terminal and the signal quality of the plurality of third cells is greater than or equal to a preset threshold value, reselecting the third cell with the highest signal quality from the first cell to the plurality of third cells.
Optionally, the reselecting from the first cell to the third cell includes:
and the first terminal finishes the ongoing service, deletes the context and registers the context to the local core network corresponding to the second base station.
Optionally, the method further includes:
the first terminal acquires a failure weakening exit message sent by the second base station;
and the first terminal exits the fail-soft mode according to the fail-soft exit message and registers to the core network.
Optionally, at least one terminal in the closed subscriber group is located in a second cell covered by the second base station, and after reselecting from the first cell to the third cell, the method further includes:
the first terminal communicates with the at least one terminal in a second cell covered by the second base station.
A second aspect of the present invention provides a terminal applied to a reselection method, where the terminal is a first terminal, the first terminal is located in a first cell covered by a first base station, and the first base station is in a non-failure-weakening mode, and the method includes:
an obtaining module, configured to obtain identifiers of N closed user groups corresponding to a second base station, where the identifiers of the closed user groups are used to indicate that the second base station is in a failure weakening mode, the first terminal belongs to the closed user group, and N is an integer greater than 0;
and the reselection module is configured to measure N second cells covered by the second base station, and reselect the third cell from the first cell if it is measured that an identifier of a closed subscriber group broadcasted by the third cell is the same as an identifier of any one of the N closed subscriber groups acquired by the first terminal and the signal quality of the third cell is greater than or equal to a preset threshold, where the third cell is a cell in the second cells.
A third aspect of the present invention provides a terminal applied to a reselection method, including: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executes computer-executable instructions stored by the memory to cause the terminal to implement the reselection method described above.
A fourth aspect of the present invention provides a computer-readable storage medium having stored thereon computer-executable instructions that, when executed by a processor, implement the above-described reselection method.
The invention provides a reselection method, a terminal and a storage medium, wherein the method comprises the following steps: a first terminal acquires identifiers of N closed user groups corresponding to a second base station, wherein the identifiers of the closed user groups are used for indicating that the second base station is in a failure weakening mode, and the first terminal belongs to the N closed user groups; and the first terminal measures N second cells covered by the second base station, and reselects the third cell from the first cell if the identifier of the closed user group broadcasted by the third cell is the same as any one of the identifiers of the N closed user groups acquired by the first terminal and the signal quality of the third cell is greater than or equal to a preset threshold value. The terminal can access the base station with weakened fault, and further can communicate with the terminal in the coverage range of the base station.
Drawings
Fig. 1 is a schematic diagram of a system architecture to which the reselection method provided by the present invention is applicable;
fig. 2 is a first flowchart illustrating a reselection method provided in the present invention;
fig. 3 is a second flowchart illustrating a reselection method according to the present invention;
FIG. 4 is a first schematic diagram illustrating a variation of a terminal interface according to the present invention;
FIG. 5 is a second schematic diagram illustrating a variation of a terminal interface according to the present invention;
fig. 6 is a third schematic flowchart of a reselection method provided in the present invention;
fig. 7 is a first schematic structural diagram of a terminal according to the present invention;
fig. 8 is a schematic structural diagram of a terminal according to the present invention;
fig. 9 is a schematic structural diagram of a terminal 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 in the embodiments of the present invention will be clearly and completely described below with reference to the 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.
Paraphrasing the term:
weakening failure: the operation of the base station based on the broadband digital trunking system is controlled by the network side, and when the base station detects that a link between the base station and the network side fails, the base station automatically switches to a failure weakening working mode, namely the base station in the failure weakening mode adopts a local core network to establish the link, so as to provide basic trunking service for users in the coverage area of the base station.
Closed user group: CSG (closed Subscriber group), which is a concept introduced in 3GPP R8 and defined as a closed Subscriber group. Each CSG is identified by one CSG, which is a CSG ID.
CSG refers to a group of subscribers that are allowed to access one or more specific cells, where one or more cells are restricted and conditional to access subscribers, while a normal cell may allow access to all legitimate subscribers (and roaming subscribers) of an operator. And the same subscriber may belong to multiple CSGs, each CSG being identified by a CSG ID, the UE maintains a list of CSGIDs (allowed CSG IDs) of the CSGs to which it belongs, CSG cells contained by CSG IDs outside this list being inaccessible to the UE. And each CSG cell broadcasts a CSG ID that is accessible to the members of the closed subscriber group identified by the CSG ID.
Fig. 1 is a schematic diagram of a system architecture to which a reselection method provided by the present invention is applicable, where the reselection-based method provided by the present invention is applicable in the following scenario, as shown in fig. 1, the application scenario includes: a terminal and a base station; specifically, the base station includes a first base station and a second base station. The terminal is a first terminal and can be in an overlapping range covered by the first base station and the second base station.
When the first base station and the second base station are in a normal mode, that is, links between the first base station and the core network and links between the second base station and the core network are normal, the first terminal registers through the core network and is attached to a first cell in the first base station, and the first base station can communicate with a terminal in a coverage area of the second base station.
When the link between the second base station and the core network fails, the second base station automatically switches to a failure weakening working mode, establishes a link by adopting a local core network and provides basic trunking service for the terminal in the coverage area of the second base station; however, since the first terminal is located in the first cell of the first base station and the second base station fails, the first terminal cannot communicate with the terminal located in the coverage area of the second base station. The reselection method provided by the invention is carried out to solve the problem.
Fig. 2 is a first flowchart illustrating a reselection method provided by the present invention, wherein an execution subject of the reselection method in fig. 2 is a first terminal. As shown in fig. 2, the reselection method provided in this embodiment may include:
s201, a first terminal acquires identifiers of N closed user groups corresponding to a second base station, the identifiers of the closed user groups are used for indicating that the second base station is in a failure weakening mode, the first terminal belongs to the N closed user groups, and N is an integer larger than 0.
When the second base station is in the failure weakening mode, the second base station broadcasts the CSG ID representing the failure weakening area covered by the second base station in the system message of each cell in the coverage area of the second base station, the CSG ID is pre-configured for each base station with the failure weakening function by a network manager, and when the base station is in the failure weakening mode, the base station broadcasts the CSG ID in the system message, and the CSG ID of each base station is different.
Specifically, the identifier of the closed subscriber group is an identifier of the failed closed subscriber group, where the CSG ID is a 27-bit binary sequence, and in order to distinguish from a common CSG cell, a highest bit position of the CSG ID for identifying the failed base station is 1. And when the link between the second base station and the core network is recovered to be normal, namely the second base station exits the failure weakening mode, each cell covered by the base station does not broadcast the CSG ID in the system message any more.
In this embodiment, the second base station may set the CSG ID of the second base station in System message 1(SIB1, System Information Block 1) and broadcast the CSG ID. The specific way for the terminal to obtain the identifiers of the N closed user groups corresponding to the second base station in this embodiment may be: and the terminal downloads the identifiers of the N closed user groups corresponding to the second base station through the core network corresponding to the first base station, or the identifiers of the N closed user groups corresponding to the second base station are configured in the terminal in advance. Specifically, the CSG ID is an identifier of the failed closed subscriber group, and a highest bit position of the identifier of the closed subscriber group is 1, which is used to indicate that the second base station is in the failure weakening mode. In this embodiment, the terminal belonging to the closed subscriber group may access a cell covered by the second base station in the failure weakening mode, and the first terminal belongs to the closed subscriber group. Wherein N is an integer greater than 0.
Specifically, the first terminal belongs to a closed subscriber group, that is, the first terminal is a terminal having account opening data on the fail-soft state base station identified by the closed subscriber group. And when the second base station is in failure weakening, the first terminal cannot communicate with the terminal in the second cell covered by the second base station.
S202, the first terminal measures N second cells covered by the second base station, and if the fact that the identifier of the closed user group broadcasted by the third cell is the same as the identifier of any one of the N closed user groups acquired by the first terminal and the signal quality of the third cell is greater than or equal to a preset threshold value is measured, the third cell is reselected from the first cell to the third cell, and the third cell is a cell in the second cells.
In this embodiment, the second base station is in the failure mode, and may broadcast the identifier of the failure-weakened closed subscriber group pre-configured by the second base station, specifically, the system message SIB1 broadcast by the second base station includes the identifier of the closed subscriber group, and optionally, after the first terminal receives the SIB1, the first terminal may also receive a sounding Paging message sent by the second base station, where the message is used to indicate that the Trunking system broadcast changes, and to prompt the first terminal that the first terminal cannot communicate with the terminal within the coverage of the second base station.
The first terminal measures a second cell covered by a second base station around and acquires a system message SIB 1; when the first terminal is in a measurement process, the position of the first terminal may change, and it is required to obtain whether an identifier of a closed subscriber group broadcasted by a third cell is the same as an identifier of any one of N closed subscriber groups obtained by the first terminal, and when the signal quality of the third cell is greater than or equal to a preset threshold, it is determined that the third cell is a failure-weakened cell and can meet communication quality, and the first terminal reselects from the first cell to the third cell, specifically, the third cell is a cell in the second cell.
Optionally, if the first terminal measures that the identifiers of the closed subscriber groups broadcasted by the plurality of third cells are all the same as the identifier of any one of the N closed subscriber groups acquired by the first terminal, and the signal quality of the plurality of third cells is greater than or equal to the preset threshold, reselecting the third cell with the highest signal quality from the first cell to the third cell with the highest signal quality in the plurality of third cells.
It should be noted that, when the first terminal wants to communicate with a specific second terminal, it needs to measure N second cells covered by the second base station, determine the closed subscriber group including the identifier of the second terminal, and select the cell with the broadcasted closed subscriber group identifier being the same as the closed subscriber group identifier for access. When the first terminal accesses the cell, the first terminal can communicate with the second terminal through the local core network of the cell.
The present embodiment provides a reselection method, including: the method comprises the steps that a first terminal obtains identifiers of N closed user groups corresponding to a second base station, the identifiers of the closed user groups are used for indicating that the second base station is in a failure weakening mode, and the first terminal belongs to the closed user groups; and the first terminal measures N second cells covered by the second base station, and reselects the third cell from the first cell if the identifier of the closed user group broadcasted by the third cell is the same as any one of the identifiers of the N closed user groups acquired by the first terminal and the signal quality of the third cell is greater than or equal to a preset threshold value. The terminal can be accessed to the base station with weakened faults, and when at least one terminal contained in the identification of the closed user group corresponding to the second base station is positioned in the range of a second cell covered by the second base station, the terminal can further communicate with the terminal in the coverage range of the base station.
Based on the foregoing embodiment, the following further describes the reselection method provided by the present invention with reference to fig. 3, where fig. 3 is a schematic flow diagram of the reselection method provided by the present invention, and as shown in fig. 3, the reselection method provided by this embodiment may include:
s301, the first terminal acquires the identifications of the N closed user groups corresponding to the second base station.
S302, the first terminal establishes a closed user group list according to the identifications of the N closed user groups, wherein the closed user group list comprises the identifications of the M closed user groups, and M is an integer less than or equal to N.
In this embodiment, one possible implementation manner is: after the first terminal acquires the identifiers of the N closed subscriber groups, the identifiers of the N closed subscriber groups may be displayed on the terminal. Fig. 4 is a schematic diagram of a terminal interface change provided by the present invention, as shown in an interface 401 in fig. 4, the interface 401 displays identifiers of N closed user groups, which illustratively include an identifier 1, an identifier 2, an identifier 3, and an identifier 4. Specifically, the manner of displaying the identifiers of the closed user groups may be displayed according to the distance from the cell corresponding to each identifier of the closed user group to the terminal, for example, according to the sequence from far to near from the terminal; or, the signal strength or the signal quality of the cell corresponding to the identifier of each closed subscriber group may be displayed from high to low; or displayed irregularly.
Specifically, the user may select an identifier of the closed user group displayed on the terminal, and the terminal establishes the closed user group list according to a selection instruction of the user for the identifier of the closed user group. Specifically, the identifier of the closed subscriber group included in the closed subscriber group list is an identifier of the closed subscriber group selected by the user. The closed user group list comprises identifications of M closed user groups, and M is an integer less than or equal to N. Specifically, the user may select all the identifiers of the closed subscriber group displayed on the terminal, where M is equal to N, that is, the closed subscriber group list includes all the identifiers of the closed subscriber group; the user may also select the identifier of the target closed subscriber group, where M is 1, that is, the closed subscriber group list includes 1 closed subscriber group identifier.
Illustratively, as shown in interface 402 of FIG. 4, the user has selected logo 1 and logo 2, and thus interface 402 displays a closed user group list including logo 1 and logo 2.
Another possible implementation is: because the first terminal is located in a first cell covered by a first base station which is normally connected with a core network, after the first terminal receives the identifiers of the N closed user groups, the second base station can be identified to be in a failure weakening mode according to the identifiers of the closed user groups in the system message; and the first terminal can download or receive the mapping relationship between the CSG ID of each base station with weakened failure and the geographical position of the second cell covered by the CSG ID, which is pushed by the core network, through the core network.
And the first terminal displays the geographical positions of the N second cells covered by the second base station according to the mapping relation between the identifier of each closed user group and the geographical position of the corresponding second cell covered by the second base station. Specifically, the first terminal is provided with an electronic map template, and after the first terminal obtains the mapping relationship between the identifier of each closed user group and the geographic position of the second cell covered by the corresponding second base station, the geographic position of the second cell covered by each second base station is displayed on the electronic map, and optionally, the identifier of the corresponding closed user group is displayed on the geographic position of the second cell covered by the second base station. Fig. 5 is a schematic diagram of a terminal interface change provided by the present invention, as shown in an interface 501 in fig. 5, exemplarily, a geographical location of a second cell covered by a second base station corresponding to identifiers 1, 2, 3, and 4 and identifiers of four closed user groups is displayed.
Specifically, the user may select the identifier of the closed subscriber group displayed on the terminal, and the first terminal establishes the closed subscriber group list and establishes the closed subscriber group list according to the selection instruction of the user on the geographical positions of the N second cells covered by the second base station. Specifically, the identifier of the closed subscriber group included in the closed subscriber group list is an identifier of the closed subscriber group selected by the user.
Illustratively, as shown in the interface 502 in fig. 5, the user selects identifier 1 and identifier 2, or selects the geographic location of the second cell covered by the second base station corresponding to identifier 1 and identifier 2, so that the closed subscriber group list displayed by the interface 502 includes identifier 1 and identifier 2.
It is conceivable that, when the identifier of the closed subscriber group or the geographical location of each second cell covered by the second base station is displayed on the terminal, the first terminal does not perform the following steps unless the user selects the identifier of the closed subscriber group.
And S303, if the first terminal measures that the identifier of the closed subscriber group broadcasted by the third cell is the same as the identifier of any one of the M closed subscriber groups in the closed subscriber group list and the signal quality of the third cell is greater than or equal to the preset threshold value, reselecting the third cell from the first cell.
In this embodiment, if the first terminal measures that the identifiers of the closed subscriber groups broadcasted by the plurality of third cells are all the same as the identifier of any one of the N closed subscriber groups acquired by the first terminal, and the signal quality of the plurality of third cells is greater than or equal to the preset threshold, the first terminal reselects the third cell with the highest signal quality among the plurality of third cells.
The first terminal accesses the third cell in a fail-soft mode when reselecting from the first cell to the third cell. The first terminal firstly ends the ongoing service, deletes the context, and then registers to the local core network corresponding to the second base station, so as to realize the access to the third cell.
S304, the first terminal communicates with at least one terminal located in a second cell covered by the second base station.
In this embodiment, when the first terminal accesses the third cell, at least one terminal in the closed subscriber group broadcasted by the second base station is located in the second cell covered by the second base station, and the first terminal may communicate with at least one terminal in the second cell covered by the second base station, specifically, the at least one terminal is a terminal in a cell corresponding to the closed subscriber group identifier included in the closed subscriber group list.
The specific implementation in S301 in this embodiment may refer to the related description in S201 in the foregoing embodiment, and is not described herein again.
In this embodiment, the first terminal establishes a closed user group list according to the identifiers of the N closed user groups, specifically, the first terminal displays the identifiers of the N closed user groups, and establishes the closed user group list according to a selection instruction of the user for the identifiers of the N closed user groups; or the first terminal displays the geographical positions of the N second cells covered by the second base station according to the mapping relation between the identifier of each closed user group and the geographical position of the corresponding second cell covered by the second base station, and establishes a closed user group list according to a selection instruction of a user for the geographical positions of the N second cells covered by the second base station. According to the reselection method provided by the embodiment, the user can identify and lock the weakened base station and select the weakened cell to be reselected. And if the first terminal measures that the identifier of the closed user group broadcasted by the third cell is the same as the identifier of any one of the M closed user groups in the closed user group list and the signal quality of the third cell is greater than or equal to the preset threshold, reselecting the first terminal from the first cell to the third cell, so that the terminal can be accessed to the base station with weakened failure and can further communicate with the terminal within the coverage range of the base station.
Based on the foregoing embodiment, the following further describes the reselection method provided by the present invention with reference to fig. 6, where fig. 6 is a third schematic flow chart of the reselection method provided by the present invention, and as shown in fig. 6, the reselection method provided by this embodiment may include:
s601, the first terminal acquires the identifications of the N corresponding closed user groups.
S602, the first terminal establishes a closed user group list according to the identifications of the N closed user groups, wherein the closed user group list comprises the identifications of the M closed user groups, and M is an integer less than or equal to N.
And S603, if the first terminal measures that the identifier of the closed subscriber group broadcasted by the third cell is the same as the identifier of any one of the M closed subscriber groups in the closed subscriber group list and the signal quality of the third cell is greater than or equal to the preset threshold, reselecting the third cell from the first cell.
S604, the first terminal communicates with at least one terminal located in a second cell covered by the second base station.
S605, the first terminal acquires the fault weakening exit message sent by the second base station.
When the connection between the second base station and the core network is restored to be normal, the second base station broadcasts a failure weakening exit message, specifically, the failure weakening exit message includes a system message SIB1, and the SIB1 no longer includes a CSG ID corresponding to the second base station; and after receiving the fail-soft exit message, the first terminal determines that a link between the second base station and the core network is normal.
And S606, the first terminal exits the fail-soft mode according to the fail-soft exit message and registers to the core network.
And the first terminal determines that the link between the second base station and the core network is normal, exits the failure weakening mode and re-registers to the core network, wherein the core network is a normal core network. The first terminal communicates with terminals within the coverage of the second base station through the core network.
It is conceivable that, after the second base station re-registers to the core network, it needs to communicate with another terminal in the coverage area of the third base station in the failure-degraded mode, and then the steps of S601-S604 are performed.
The specific implementation in S601-S604 in this embodiment may refer to the related descriptions in S301-S304 in the foregoing embodiment, which are not described herein again.
In this embodiment, when the connection between the second base station and the core network is restored to normal, the terminal receives the failure weakening exit message broadcast by the second base station, exits the failure weakening mode according to the failure weakening exit message, registers to the core network, and communicates with the terminal in the coverage area of the second base station through the core network. According to the reselection method provided by the embodiment, the first terminal can realize continuous communication with the terminal, so that the user experience is improved.
Fig. 7 is a schematic structural diagram of a terminal according to the present invention, as shown in fig. 7, the terminal 700 includes: an acquisition module 701 and a reselection module 702.
An obtaining module 701, configured to obtain identifiers of N closed user groups corresponding to a second base station, where the identifiers of the closed user groups are used to indicate that the second base station is in a failure weakening mode, a first terminal belongs to the closed user group, and N is an integer greater than 0;
a reselection module 702, configured to measure N second cells covered by the second base station, and if it is measured that the identifier of the closed subscriber group broadcasted by the third cell is the same as any one of the identifiers of the N closed subscriber groups acquired by the first terminal, and the signal quality of the third cell is greater than or equal to a preset threshold, reselect the third cell from the first cell, where the third cell is a cell in the second cells.
The principle and technical effect of the terminal provided in this embodiment are similar to those of the above reselection method, and are not described herein again.
Optionally, fig. 8 is a schematic structural diagram of a terminal provided by the present invention, and as shown in fig. 8, the terminal 700 further includes: a closed subscriber group list establishing module 703, a display module 704 and a registration module 705.
A closed subscriber group list establishing module 703, configured to establish a closed subscriber group list according to the identifiers of the N closed subscriber groups, where the closed subscriber group list includes identifiers of M closed subscriber groups, and M is an integer less than or equal to N.
Optionally, the reselection module 702 is further configured to reselect from the first cell to the third cell if it is measured that the identifier of the closed subscriber group broadcasted by the third cell is the same as the identifier of any one of the M closed subscriber groups in the closed subscriber group list, and the signal quality of the third cell is greater than or equal to a preset threshold.
A display module 704, configured to display the identifiers of the N closed user groups.
Optionally, the closed user group list establishing module 703 is specifically configured to establish a closed user group list according to a selection instruction of the user for the identifiers of the N closed user groups.
The display module 704 is further configured to display the geographic positions of the N second cells covered by the second base station according to the mapping relationship between the identifier of each closed user group and the geographic position of the second cell covered by the corresponding second base station.
Optionally, the closed subscriber group list establishing module 703 is specifically configured to establish a closed subscriber group list according to a selection instruction of the user for the geographic locations of the N second cells covered by the second base station.
Optionally, the reselection module 702 is specifically configured to reselect, when it is measured that the identifiers of the closed user groups broadcasted by the multiple third cells are all the same as the identifier of any one of the N closed user groups acquired by the first terminal, and the signal qualities of the multiple third cells are all greater than or equal to a preset threshold, a third cell with the highest signal quality among the multiple third cells is reselected from the first cell.
Optionally, the reselection module 702 is specifically configured to end an ongoing service, delete a context, and register the context with a local core network corresponding to the second base station.
The obtaining module 701 is further configured to obtain, by the first terminal, a failure-weakening exit message sent by the second base station.
The registering module 705 is configured to enable the first terminal to exit the fail-soft mode according to the fail-soft exit message, and register to the core network.
A communication module 706, configured to communicate with at least one terminal in a second cell covered by a second base station.
Fig. 9 is a schematic structural diagram of a terminal according to a third embodiment of the present invention, and as shown in fig. 9, the terminal 800 includes: a memory 801 and at least one processor 802.
A memory 801 for storing program instructions.
The processor 802 is configured to implement the reselection method in this embodiment when the program instructions are executed, and specific implementation principles may be referred to in the foregoing embodiments, which are not described herein again.
The terminal 800 may also include an input/output interface 803.
The input/output interface 803 may include a separate output interface and input interface, or may be an integrated interface that integrates input and output. The output interface is used for outputting data, the input interface is used for acquiring input data, the output data is a general name output in the method embodiment, and the input data is a general name input in the method embodiment.
The present invention also provides a readable storage medium, in which an execution instruction is stored, and when at least one processor of the terminal executes the execution instruction, and the computer execution instruction is executed by the processor, the reselection method in the above embodiment is implemented.
The present invention also provides a program product comprising execution instructions stored in a readable storage medium. The at least one processor of the terminal may read the execution instruction from the readable storage medium, and the execution of the execution instruction by the at least one processor causes the terminal to implement the reselection method provided by the various embodiments described above.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
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 units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods 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 the foregoing embodiments of the network device or the terminal device, it should be understood that the Processor may be a Central Processing Unit (CPU), or may be other general-purpose processors, Digital Signal Processors (DSP), Application Specific Integrated Circuits (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present application may be embodied directly in a hardware processor, or in a combination of the hardware and software modules in the processor.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (11)
1. A reselection method wherein a first terminal is located in a first cell covered by a first base station, said first base station being in a non-failure-weakened mode, said method comprising:
a first terminal acquires identifiers of N closed user groups corresponding to a second base station, wherein the identifiers of the closed user groups are used for indicating that the second base station is in a failure weakening mode, the first terminal belongs to the N closed user groups, and N is an integer greater than 0; the first terminal is in an overlapping range covered by the first base station and the second base station;
the first terminal measures N second cells covered by the second base station, and if the fact that the identifier of the closed user group broadcasted by the third cell is the same as the identifier of any one of the N closed user groups acquired by the first terminal and the signal quality of the third cell is greater than or equal to a preset threshold value is measured, the first cell reselects the third cell, wherein the third cell is a cell in the second cells.
2. The method of claim 1, wherein before the first terminal measures N second cells covered by the second base station, the method further comprises:
the first terminal establishes a closed user group list according to the identifiers of the N closed user groups, wherein the closed user group list comprises the identifiers of M closed user groups, and M is an integer less than or equal to N;
if the identifier of the closed subscriber group broadcasted by the third cell is measured to be the same as the identifier of any one of the N closed subscriber groups acquired by the first terminal, and the signal quality of the third cell is greater than or equal to a preset threshold, reselecting the third cell from the first cell, including:
and if the first terminal measures that the identifier of the closed user group broadcasted by the third cell is the same as the identifier of any one of the M closed user groups acquired by the first terminal and the signal quality of the third cell is greater than or equal to a preset threshold value, reselecting the third cell from the first cell.
3. The method according to claim 2, wherein the first terminal establishes a closed subscriber group list according to the identities of N closed subscriber groups, including:
the first terminal displays the identifications of the N closed user groups;
and establishing a closed user group list according to a selection instruction of the user for the identifications of the N closed user groups.
4. A method according to claim 2 or 3, wherein the first terminal establishes a closed subscriber group list based on the identities of N of the closed subscriber groups, comprising:
the first terminal displays the geographical positions of N second cells covered by the second base station according to the mapping relation between the identifier of each closed user group and the geographical position of the corresponding second cell covered by the second base station;
and establishing a closed user group list according to the selection instruction of the user on the geographical positions of the N second cells covered by the second base station.
5. The method according to claim 1 or 2, characterized in that the method further comprises:
and if the first terminal measures that the identifiers of the closed user groups broadcasted by the plurality of third cells are the same as the identifier of any one of the N closed user groups acquired by the first terminal and the signal quality of the plurality of third cells is greater than or equal to a preset threshold value, reselecting the third cell with the highest signal quality from the first cell to the plurality of third cells.
6. The method of claim 1, wherein the reselecting from the first cell to the third cell comprises:
and the first terminal finishes the ongoing service, deletes the context and registers the context to the local core network corresponding to the second base station.
7. The method of claim 1, further comprising:
the first terminal acquires a failure weakening exit message sent by the second base station;
and the first terminal exits the fail-soft mode according to the fail-soft exit message and registers to the core network.
8. The method of claim 1, wherein at least one terminal in the closed subscriber group is located in a second cell covered by the second base station, and wherein after the reselecting from the first cell to the third cell, further comprising:
the first terminal communicates with the at least one terminal in a second cell covered by the second base station.
9. A terminal applied to a reselection method, wherein the terminal is a first terminal, the first terminal is located in a first cell covered by a first base station, and the first base station is in a non-failure-weakening mode, and the method includes:
an obtaining module, configured to obtain identifiers of N closed user groups corresponding to a second base station, where the identifiers of the closed user groups are used to indicate that the second base station is in a failure weakening mode, and the first terminal belongs to the closed user group, where N is an integer greater than 0; the first terminal is in an overlapping range covered by the first base station and the second base station;
and the reselection module is configured to measure N second cells covered by the second base station, and reselect the third cell from the first cell if it is measured that an identifier of a closed subscriber group broadcasted by the third cell is the same as an identifier of any one of the N closed subscriber groups acquired by the first terminal and the signal quality of the third cell is greater than or equal to a preset threshold, where the third cell is a cell in the second cells.
10. A terminal applied to a reselection method, comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the terminal to perform the method of any of claims 1-8.
11. A computer-readable storage medium having computer-executable instructions stored thereon which, when executed by a processor, implement the method of any one of claims 1-8.
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