CN112770365B - Cell switching processing method and device, network side equipment and terminal - Google Patents

Cell switching processing method and device, network side equipment and terminal Download PDF

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Publication number
CN112770365B
CN112770365B CN201911078467.7A CN201911078467A CN112770365B CN 112770365 B CN112770365 B CN 112770365B CN 201911078467 A CN201911078467 A CN 201911078467A CN 112770365 B CN112770365 B CN 112770365B
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terminal
cell
cag
target
selection mode
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CN112770365A (en
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周锐
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00835—Determination of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/04—Reselecting a cell layer in multi-layered cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Abstract

The invention provides a cell switching processing method, a cell switching processing device, network side equipment and a terminal, wherein the method comprises the following steps: receiving manual network selection mode information reported by a terminal entering a Radio Resource Control (RRC) connection state, wherein the manual network selection mode information comprises: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user; selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the manual network selection mode information; sending the configuration information of the target cell to the terminal; in the embodiment of the invention, when the network side equipment performs the cell switching processing on the terminal, the cell supporting the target CAG selected by the user is selected for the terminal as the target cell according to the manual network selection mode information, so that any cell switched to by the terminal in the manual network selection mode in the connected state is ensured to support the target CAG selected by the user, and the user experience is improved.

Description

Cell switching processing method and device, network side equipment and terminal
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for processing cell handover, a network side device, and a terminal.
Background
A new Network-Non-Public Network (NPN) is introduced in the related art, and a typical application scenario of the NPN is that the NPN is used as a private Network only for a private entity (e.g., an enterprise). Only authorized terminals are allowed to access the NPN network. An unauthorized terminal cannot attempt to access the NPN network.
The NPN can be deployed in various ways, and can be deployed independently from an existing 5G Public Network (SNPN) or can be deployed on an existing 5G Public Network (PNI-NPN) in a shared manner.
A Closed Access Group (CAG) is defined under the PNI-NPN network, and the CAG is used for allowing authorized terminals to Access the PNI-NPN network and preventing unauthorized terminals from accessing the PNI-NPN network.
Each CAG has an identification (CAG ID) for distinguishing it from other CAGs. A user belonging to a certain CAG may access the personal PNI-NPN network through the cell supporting this CAG. Each cell may support one or more CAGs, with each cell having a CAG list indicating the CAG lists it supports.
One terminal can support one or more CAGs, each terminal is configured with a CAG permission list for indicating which CAGs the terminal can access, and when the terminal accesses the PNI-NPN network, the terminal can select a CAG ID from the CAG ID for accessing the PNI-NPN network.
Two terminal network selection modes are defined in the related technology: an automatic network selection mode and a manual network selection mode. In the manual network selection mode, the terminal displays a current available CAG list to a user, the user selects a CAG ID according to own preference, and the terminal accesses the PNI-NPN network by using the CAG ID selected by the user. The terminal will not switch to other CAGs unless the user changes his or her choice again.
In the moving process of the terminal, the replacement of the resident cell is controlled by an RRC (Radio Resource Control) layer; the terminal RRC layer has three states, namely an RRC idle state, an RRC inactive state and an RRC connected state. In the prior art, when the terminal is in an RRC idle state or an RRC inactive state, a cell reselection process is completely controlled by the terminal, and when the terminal is in an RRC connected state, a cell handover process is controlled by the base station.
When a terminal is in an RRC connected state, in a cell handover procedure in the prior art, when a base station determines a target cell, it is ensured that at least one CAG ID in a CAG list of the target cell is in a CAG allowed list of the terminal; the terminal is ensured to always stay in the cell capable of supporting the CAG allowed list of the terminal, and the basic requirement of CAG for access control is met. But the base station cannot guarantee that the terminal is handed over to a cell supporting a CAG ID manually selected by the user. This will cause the terminal to possibly switch to a cell that does not support the CAG ID selected by the user while in the RRC connected state, which will affect the user experience.
Disclosure of Invention
The embodiment of the invention aims to provide a cell switching processing method, a cell switching processing device, network side equipment and a terminal, and aims to solve the problem that a connected terminal cannot be matched with a manual network selection mode selected by the terminal when the cell switching is controlled by a base station in the related art.
In order to solve the above problem, an embodiment of the present invention provides a method for processing cell handover, which is applied to a network side device, and includes:
receiving manual network selection mode information reported by a terminal entering a Radio Resource Control (RRC) connection state, wherein the manual network selection mode information comprises: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user;
selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the manual network selection mode information;
and sending the configuration information of the target cell to the terminal.
Wherein, the selecting the cell supporting the target CAG for the terminal as the target cell to be switched by the terminal according to the manual network selection mode information comprises:
according to the identification of the target CAG, configuring a neighboring cell supporting the target CAG for the terminal as a neighboring cell to be measured by the terminal;
receiving a measurement result reported by the terminal;
and selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the measurement result, or selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the measurement result and the identification of the target CAG.
After the sending the configuration information of the target cell to the terminal, the method further includes:
and sending the manual network selection mode information reported by the terminal to the target cell.
The receiving of the manual network selection mode information reported by the terminal entering the Radio Resource Control (RRC) connection state includes:
and receiving the manual network selection mode information reported by the terminal in the radio resource control RRC connection state through an RRC message and/or a non-access stratum NAS message.
The embodiment of the invention also provides a cell switching processing method, which is applied to a terminal and comprises the following steps:
after the terminal enters a Radio Resource Control (RRC) connection state, manual network selection mode information is sent to network side equipment, wherein the manual network selection mode information comprises: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user;
and receiving configuration information of a target cell to be switched by the terminal, which is sent by the network side equipment, wherein the target cell supports the target CAG.
Before receiving the configuration information of the target cell to be switched by the terminal, sent by the network side device, the method further includes:
receiving a list of neighbor cells to be measured by the terminal, configured by the network side device; wherein the neighbor cell to be measured by the terminal supports the target CAG;
and measuring the source cell and the adjacent cells in the list, and reporting the measurement result.
After the terminal enters the RRC connected state, the sending manual network selection mode information to the network side device includes:
and after the terminal enters a Radio Resource Control (RRC) connection state, the manual network selection mode information is sent to network side equipment through an RRC message and/or a non-access stratum (NAS) message.
The embodiment of the present invention further provides a processing apparatus for cell switching, which is applied to a network side device, and includes:
a first receiving module, configured to receive manual network selection mode information reported by a terminal that enters a radio resource control RRC connected state, where the manual network selection mode information includes: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user;
a selection module, configured to select, according to the manual network selection mode information, a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal;
and the first sending module is used for sending the configuration information of the target cell to the terminal.
An embodiment of the present invention further provides a network side device, including: a transceiver, a memory, a processor and a computer program stored on the memory and executable on the processor, the transceiver receiving and transmitting data under the control of the processor, the processor being configured to read the program in the memory and perform the following operations:
receiving manual network selection mode information reported by a terminal entering a Radio Resource Control (RRC) connection state, wherein the manual network selection mode information comprises: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user;
selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the manual network selection mode information;
and sending the configuration information of the target cell to the terminal.
Wherein the processor is further configured to read the program in the memory and perform the following operations:
according to the identification of the target CAG, configuring a neighboring cell supporting the target CAG for the terminal as a neighboring cell to be measured by the terminal;
receiving a measurement result reported by the terminal;
and selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the measurement result, or selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the measurement result and the identification of the target CAG.
Wherein the processor is further configured to read the program in the memory and perform the following operations:
and sending the manual network selection mode information reported by the terminal to the target cell.
Wherein the processor is further configured to read the program in the memory and perform the following operations:
and receiving the manual network selection mode information reported by the terminal in the radio resource control RRC connection state through an RRC message and/or a non-access stratum NAS message.
The embodiment of the present invention further provides a processing apparatus for cell switching, which is applied to a terminal, and includes:
a second sending module, configured to send manual network selection mode information to a network side device after the terminal enters a radio resource control RRC connected state, where the manual network selection mode information includes: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user;
a second receiving module, configured to receive configuration information of a target cell to be switched by the terminal, where the target cell supports the target CAG, and the configuration information is sent by the network side device.
An embodiment of the present invention further provides a terminal, including: a transceiver, a memory, a processor and a computer program stored on the memory and executable on the processor, the transceiver receiving and transmitting data under the control of the processor, the processor being configured to read the program in the memory and perform the following operations:
after the terminal enters a Radio Resource Control (RRC) connection state, manual network selection mode information is sent to network side equipment, wherein the manual network selection mode information comprises: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user;
and receiving configuration information of a target cell to be switched by the terminal, which is sent by the network side equipment, wherein the target cell supports the target CAG.
Wherein the processor is further configured to read the program in the memory and perform the following operations:
receiving a list of neighbor cells to be measured by the terminal, configured by the network side device; wherein the neighbor cell to be measured by the terminal supports the target CAG;
and measuring the source cell and the adjacent cells in the list, and reporting the measurement result.
Wherein the processor is further configured to read the program in the memory and perform the following operations:
and after the terminal enters a Radio Resource Control (RRC) connection state, the manual network selection mode information is sent to network side equipment through an RRC message and/or a non-access stratum (NAS) message.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the processing method for cell handover as described above are implemented.
The technical scheme of the invention at least has the following beneficial effects:
in the cell switching processing method and device, the network side device and the terminal of the embodiment of the invention, the terminal sends the current manual network selection mode information to the network side device after entering the RRC connection state, and the network side device selects a cell supporting the target CAG selected by the user for the terminal as a target cell according to the manual network selection mode information when performing cell switching processing on the terminal, so that any cell switched to by the terminal in the manual network selection mode supports the target CAG selected by the user, and the user experience is improved.
Drawings
Fig. 1 is a flowchart illustrating a method for processing a cell handover according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a second step of a method for handling cell handover according to an embodiment of the present invention;
fig. 3 is an interaction diagram of example 1 in a processing method for cell handover according to an embodiment of the present invention;
fig. 4 is an interaction diagram of example 2 in a processing method for cell handover according to an embodiment of the present invention;
fig. 5 is an interaction diagram of example 3 in a processing method for cell handover according to an embodiment of the present invention;
fig. 6 is an interaction diagram of example 4 in a processing method for cell handover according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a processing apparatus for cell handover according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a network-side device according to an embodiment of the present invention;
fig. 9 is a second schematic structural diagram of a processing apparatus for cell handover according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an embodiment of the present invention provides a method for processing cell handover, which is applied to a network device, and includes:
step 11, receiving manual network selection mode information reported by a terminal entering a Radio Resource Control (RRC) connected state, wherein the manual network selection mode information comprises: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user.
It should be noted that the terminal can only switch the manual network selection mode or the automatic network selection module in the RRC idle state, and cannot switch in the RRC connected state. The manual selection of the CAG mode is a part of a manual network selection mode, and the terminal is in the manual CAG mode under the condition that a user sets the terminal to be in the manual network selection mode, selects a CAG while selecting a network. Therefore, after the user sets the terminal to be in the manual network selection mode and selects one CAG, the terminal reports the information of the manual network selection mode after entering the connection state.
And the network side equipment stores the manual network selection mode information after receiving the manual network selection mode information.
Step 12, according to the manual network selection mode information, selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal;
in this step, when the network side device performs handover measurement configuration and handover target cell decision on the terminal, the neighboring cell is filtered according to the stored manual network selection mode information, so as to ensure that the selected target cell supports the target CAG selected by the user.
And step 13, sending the configuration information of the target cell to the terminal. The terminal can perform cell switching according to the configuration information of the target cell.
As an alternative embodiment, step 12 comprises:
according to the identification of the target CAG, configuring a neighboring cell supporting the target CAG for the terminal as a neighboring cell to be measured by the terminal; when the terminal is subjected to measurement configuration of a service cell and an adjacent cell, if the terminal is judged to be in a CAG mode selected manually, a CAG list supported by the adjacent cell to be measured is checked, and the terminal is ensured to measure only a cell supporting a target CAG selected by a user;
receiving a measurement result reported by the terminal, wherein the measurement result comprises a measurement result of the terminal to a service cell and a neighbor cell configured by a network;
and selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the measurement result, or selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the measurement result and the identification of the target CAG.
The network receives the measurement result of the terminal, and when judging the handover candidate cell, the network can directly select a cell meeting the conditions as a target cell (so that the neighboring cells to be measured by the terminal configured by the network support the target CAG, and the target cell selected by the network side equipment from each measured neighboring cell according to the measurement result also supports the target CAG); or filtering each measured neighboring cell according to the identifier of the target CAG again, thereby ensuring that the selected target cell supports the target CAG.
Further, after step 13, the method further comprises:
and sending the manual network selection mode information reported by the terminal to the target cell. For example, the manual network selection mode information is sent to the target cell through an Xn interface. The target cell needs to ensure that the target cell supports the target CAG selected by the user according to the received manual network selection mode information of the terminal when the target cell performs the subsequent switching measurement configuration and switching target cell judgment on the terminal.
It should be noted that, in order to ensure the validity of the manual network selection mode information of the terminal, after the terminal enters the idle state or the inactive state from the RRC connected state, the manual network selection mode information of the terminal is invalid, and the serving base station of the terminal may delete the manual network selection mode information of the terminal stored in the serving base station of the terminal.
As yet another alternative, step 11 comprises:
and receiving the manual network selection mode information reported by the terminal in the radio resource control RRC connection state through an RRC message and/or a non-access stratum NAS message.
For example, the indication information indicating that the terminal is in the manual closed access group CAG mode and the identifier of the target CAG selected by the user are both sent to the network side device through the RRC message; for another example, the indication information indicating that the terminal is in the manual closed access group CAG mode and the identifier of the target CAG selected by the user are both sent to the network side device through the NAS message; for another example, the indication information indicating that the terminal is in the manual closed access group CAG mode is sent to the network side device through an RRC message, and the identifier of the target CAG selected by the user is sent to the network side device through an NAS message; for another example, the indication information indicating that the terminal is in the manual closed access group CAG mode is sent to the network side device through NAS message, and the identifier of the target CAG selected by the user is sent to the network side device through RRC message.
In summary, in the embodiments of the present invention, after entering the RRC connected state, the terminal sends the current manual network selection mode information to the network side device, and when performing cell switching processing on the terminal, the network side device selects, for the terminal, a cell supporting the target CAG selected by the user as the target cell according to the manual network selection mode information, so as to ensure that any cell to which the terminal in the manual network selection mode is switched in the connected state supports the target CAG selected by the user, thereby improving user experience.
As shown in fig. 2, an embodiment of the present invention further provides a method for processing cell handover, which is applied to a terminal, and includes:
step 21, after the terminal enters a radio resource control RRC connected state, sending manual network selection mode information to a network side device, where the manual network selection mode information includes: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user.
It should be noted that the terminal can only switch the manual network selection mode or the automatic network selection module in the RRC idle state, and cannot switch in the RRC connected state. The manual selection of the CAG mode is a part of a manual network selection mode, and the terminal is in the manual CAG mode under the condition that a user sets the terminal to be in the manual network selection mode, selects a CAG while selecting a network. Therefore, after the user sets the terminal to be in the manual network selection mode and selects one CAG, the terminal reports the information of the manual network selection mode after entering the connection state.
And the network side equipment stores the manual network selection mode information after receiving the manual network selection mode information.
Step 22, receiving configuration information of a target cell to be switched by the terminal, which is sent by the network side device, wherein the target cell supports the target CAG.
When the network side equipment performs switching measurement configuration and switching target cell judgment on the terminal, the adjacent cell is filtered according to the stored manual network selection mode information, and the selected target cell is ensured to support the target CAG selected by the user. Further, the terminal may perform cell handover according to the configuration information of the target cell.
As an alternative embodiment, before step 22, the method further comprises:
receiving a list of neighbor cells to be measured by the terminal, configured by the network side device; wherein the neighbor cell to be measured by the terminal supports the target CAG; when the network side equipment carries out measurement configuration on a service cell and an adjacent cell of a terminal, if the terminal is judged to be in a manual CAG selection mode, a CAG list supported by the adjacent cell to be measured is checked, and the terminal is ensured to measure only a cell supporting a target CAG selected by a user;
and measuring the source cell and the adjacent cells in the list, and reporting the measurement result, wherein the measurement result comprises the measurement result of the terminal to the service cell and the adjacent cells configured by the network.
The network receives the measurement result of the terminal, and when judging the handover candidate cell, the network can directly select a cell meeting the conditions as a target cell (so that the neighboring cells to be measured by the terminal configured by the network support the target CAG, and the target cell selected by the network side equipment from each measured neighboring cell according to the measurement result also supports the target CAG); or filtering each measured neighboring cell according to the identifier of the target CAG again, thereby ensuring that the selected target cell supports the target CAG.
As another alternative, step 21 comprises:
and after the terminal enters a Radio Resource Control (RRC) connection state, the manual network selection mode information is sent to network side equipment through an RRC message and/or a non-access stratum (NAS) message.
For example, the indication information indicating that the terminal is in the manual closed access group CAG mode and the identifier of the target CAG selected by the user are both sent to the network side device through the RRC message; for another example, the indication information indicating that the terminal is in the manual closed access group CAG mode and the identifier of the target CAG selected by the user are both sent to the network side device through the NAS message; for another example, the indication information indicating that the terminal is in the manual closed access group CAG mode is sent to the network side device through an RRC message, and the identifier of the target CAG selected by the user is sent to the network side device through an NAS message; for another example, the indication information indicating that the terminal is in the manual closed access group CAG mode is sent to the network side device through NAS message, and the identifier of the target CAG selected by the user is sent to the network side device through RRC message.
In summary, in the embodiments of the present invention, after entering the RRC connected state, the terminal sends the current manual network selection mode information to the network side device, and when performing cell switching processing on the terminal, the network side device selects, for the terminal, a cell supporting the target CAG selected by the user as the target cell according to the manual network selection mode information, so as to ensure that any cell to which the terminal in the manual network selection mode is switched in the connected state supports the target CAG selected by the user, thereby improving user experience.
It should be noted that the interaction between the terminal and the network-side device regarding the manual network selection mode information may be implemented in various ways, which is described in detail below with reference to several examples.
In example 1, the indication information indicating that the terminal is in the manual selection of the closed access group CAG mode (may be simply referred to as a manual selection CAG mode indication) and the identifier of the target CAG selected by the user are both sent to the network side device through an RRC message. As shown in fig. 3, the method for implementing terminal handover to the cell supporting the target CAG selected by the user in the connected state is as follows:
step 31, in the manual network selection mode, the terminal side user manually selects a CAG ID. The NAS layer of the terminal notifies the RRC layer of the "manual CAG mode selection indication" and the "CAG ID selected by the user" through an RRC interlayer message, and the RRC layer stores the indication.
In step 32, after the terminal enters the RRC connected state, the RRC layer of the terminal sends the "manual CAG mode selection indication" and the "CAG ID selected by the user" to the serving cell (i.e., the source cell) through the RRC message 1 of the Uu port. The source cell stores the above information.
And step 33, when the source cell configures the terminal neighbor cell through the RRC message 2 for measurement, filtering the neighbor cell according to the 'manual selection CAG mode indication' and the 'CAG ID selected by the user', and only configuring the neighbor cell supporting the 'CAG ID selected by the user' for measurement.
And step 34, the RRC layer measures the adjacent cells according to the measurement configuration and reports the measurement result by using the RRC message 3.
Step 35, the source cell makes a cell switching decision, and after selecting the target cell, the target cell configuration is sent to the terminal through the RRC message 4, wherein only the adjacent cell supporting the CAG ID selected by the user can become the switched target cell; it should be noted that the selection of the target cell also needs to satisfy the relevant conditions in the prior art, and will not be described in detail here.
The source cell sends a "manual selection CAG mode indication" and a "user selected CAG ID" to the target cell over the Xn interface with the target cell, step 36.
Step 37, after the terminal is successfully switched to the target cell, the terminal sends a switching completion indication message to the network side through the RRC message 5.
Example 2, the indication information indicating that the terminal is in the manual selection CAG mode of the closed access group (may be simply referred to as a manual selection CAG mode indication) and the identifier of the target CAG selected by the user are both sent to the network side device through the NAS message. As shown in fig. 4, the method for implementing terminal handover to the cell supporting the target CAG selected by the user in the connected state is as follows:
step 41, in the manual network selection mode, the terminal side user manually selects a CAG ID. When the terminal enters an RRC connection state, the NAS layer of the terminal informs the core network of the manual CAG mode selection indication and the CAG ID selected by the user through an NAS message, and the core network stores the manual CAG mode selection indication and the CAG ID selected by the user.
The core network sends a "manually selected CAG mode indication" and a "user selected CAG ID" to the serving cell (source cell) via an interface with the serving cell (source cell), step 42. The source cell stores the above information.
And step 43, when the source cell configures the terminal neighbor cell through the RRC message 1 for measurement, filtering the neighbor cell according to the manual selection CAG mode indication and the user selected CAG ID, and only configuring the neighbor cell supporting the user selected CAG ID for measurement.
And step 44, the RRC layer measures the adjacent cells according to the measurement configuration and reports the measurement result by using the RRC message 1.
Step 45, the source cell makes a cell switching decision, and after a target cell is selected, the target cell configuration is sent to the terminal through an RRC message 3, wherein only the adjacent cell supporting the CAG ID selected by the user can become the switched target cell; it should be noted that the selection of the target cell also needs to satisfy the relevant conditions in the prior art, and will not be described in detail here.
The source cell sends a "manual selection CAG mode indication" and a "user selected CAG ID" to the target cell over the Xn interface with the target cell, step 46.
And step 47, after the terminal is successfully switched to the target cell, sending a switching completion indication message to the network side through the RRC message 4.
In the third example, the indication information indicating that the terminal is in the manual selection of the CAG mode of the closed access group (may be simply referred to as manual selection CAG mode indication) is sent to the network through NAS messages, and the identification of the target CAG selected by the user is sent to the network through RRC messages. As shown in fig. 5, the method for implementing terminal handover to the cell supporting the target CAG selected by the user in the connected state is as follows:
in step 51, in the manual network selection mode, the terminal-side user manually selects a CAG ID. After the terminal enters the RRC connection state, the NAS layer of the terminal informs the RRC layer of the CAG ID selected by the user through a message between the NAS layer and the RRC layer, and the RRC layer stores the CAG ID.
In step 52, the RRC layer of the terminal transmits the "CAG ID selected by the user" to the source cell through the RRC message of the Uu port. The source cell stores the above information.
And step 53, the terminal NAS layer informs the core network of the manual CAG mode selection indication through an NAS message, and the core network stores the manual CAG mode selection indication.
The core network sends a "manual selection CAG mode indication" to the serving cell (source cell) via an interface with the serving cell (source cell), step 54. The source cell stores the above information.
And step 55, when the source cell configures the terminal neighbor cell through the RRC message for measurement, filtering the neighbor cell according to the 'manual selection CAG mode indication' and the 'CAG ID selected by the user', and only configuring the neighbor cell supporting the 'CAG ID selected by the user' for measurement.
And step 56, the RRC layer measures the adjacent cells according to the measurement configuration and reports the measurement result by using the RRC message.
Step 57, the source cell performs cell handover decision, and after selecting the target cell, the target cell configuration is sent to the terminal through an RRC message, wherein only the neighboring cell supporting the CAG ID selected by the user can become the target cell for handover; it should be noted that the selection of the target cell also needs to satisfy the relevant conditions in the prior art, and will not be described in detail here.
The source cell sends a "manual selection CAG mode indication" and a "user selected CAG ID" to the target cell over the Xn interface with the target cell, step 58.
And step 59, after the terminal is successfully switched to the target cell, sending a switching completion indication message to the network side through an RRC message.
Example 4, the indication information indicating that the terminal is in the manual selection of the closed access group CAG mode (which may be simply referred to as a manual selection CAG mode indication) is sent to the network through an RRC message, and the identity of the target CAG selected by the user is sent to the network through an NAS message. As shown in fig. 6, the method for implementing terminal handover to the cell supporting the target CAG selected by the user in the connected state is as follows:
and step 61, in the manual network selection mode, the terminal side user manually selects a CAG ID. After the terminal enters the RRC connection state, the NAS layer of the terminal informs the RRC layer of ' manual CAG mode selection indication ' through messages between the NAS layer and the RRC layer, and the RRC layer stores the manual CAG mode selection indication '.
In step 62, the RRC layer of the terminal sends "manual selection CAG mode indication" to the source cell through an RRC message of Uu port. The source cell stores the above information.
And step 63, the terminal NAS layer informs the core network of the CAG ID selected by the user through an NAS message, and the core network stores the CAG ID.
The core network sends the "user selected CAG ID" to the serving cell (source cell) via an interface with the serving cell (source cell), step 64. The source cell stores the above information.
And step 65, when the source cell configures the terminal neighbor cell through the RRC message for measurement, filtering the neighbor cell according to the 'manual selection CAG mode indication' and the 'CAG ID selected by the user', and only configuring the neighbor cell supporting the 'CAG ID selected by the user' for measurement.
And step 66, the RRC layer measures the adjacent cells according to the measurement configuration and reports the measurement result by using the RRC message.
Step 67, the source cell makes cell switching judgment, and after selecting the target cell, the target cell configuration is sent to the terminal through RRC message, wherein only the adjacent cell supporting the CAG ID selected by the user can become the switched target cell; it should be noted that the selection of the target cell also needs to satisfy the relevant conditions in the prior art, and will not be described in detail here.
The source cell sends a "manually selected CAG mode indication" and a "user selected CAG ID" to the target cell over the Xn interface with the target cell, step 68.
And step 69, after the terminal is successfully switched to the target cell, sending a switching completion indication message to the network side through an RRC message.
In summary, in the embodiments of the present invention, after entering the RRC connected state, the terminal sends the current manual network selection mode information to the network side device, and when performing cell switching processing on the terminal, the network side device selects, for the terminal, a cell supporting the target CAG selected by the user as the target cell according to the manual network selection mode information, so as to ensure that any cell to which the terminal in the manual network selection mode is switched in the connected state supports the target CAG selected by the user, thereby improving user experience.
As shown in fig. 7, an embodiment of the present invention further provides a processing apparatus for cell handover, which is applied to a network side device, and includes:
a first receiving module 71, configured to receive manual network selection mode information reported by a terminal that enters a radio resource control RRC connected state, where the manual network selection mode information includes: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user;
a selecting module 72, configured to select, according to the manual network selection mode information, a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal;
a first sending module 73, configured to send the configuration information of the target cell to the terminal.
Optionally, in the above embodiment of the present invention, the selecting module includes:
a first sub-module, configured to configure, for a terminal, an adjacent cell supporting the target CAG as an adjacent cell to be measured by the terminal according to the identifier of the target CAG;
the second submodule is used for receiving the measurement result reported by the terminal;
and a third sub-module, configured to select, according to the measurement result, a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal, or select, according to the measurement result and an identifier of the target CAG, a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal.
Optionally, in the above embodiment of the present invention, the apparatus further includes:
and the third sending module is used for sending the manual network selection mode information reported by the terminal to the target cell.
Optionally, in the foregoing embodiment of the present invention, the first receiving module includes:
and the receiving submodule is used for receiving the manual network selection mode information reported by the terminal in the radio resource control RRC connection state through the RRC message and/or the non-access stratum NAS message.
The embodiment of the invention also provides a processing device for cell switching, and as the principle of solving the problems of the device is similar to the processing method for cell switching in the embodiment of the invention, the implementation of the device can refer to the implementation of the method, and the repeated parts are not described again.
In summary, in the embodiments of the present invention, after entering the RRC connected state, the terminal sends the current manual network selection mode information to the network side device, and when performing cell switching processing on the terminal, the network side device selects, for the terminal, a cell supporting the target CAG selected by the user as the target cell according to the manual network selection mode information, so as to ensure that any cell to which the terminal in the manual network selection mode is switched in the connected state supports the target CAG selected by the user, thereby improving user experience.
It should be noted that the processing apparatus for cell handover provided in the embodiments of the present invention is an apparatus capable of executing the processing method for cell handover, and all embodiments of the processing method for cell handover are applicable to the apparatus and can achieve the same or similar beneficial effects.
As shown in fig. 8, an embodiment of the present invention further provides a network side device, including: a transceiver 820, a memory 810, a processor 800 and a computer program stored on the memory 810 and executable on the processor 800, the transceiver 820 receiving and transmitting data under the control of the processor 800, the processor 800 reading the program in the memory and performing the following operations:
receiving manual network selection mode information reported by a terminal entering a Radio Resource Control (RRC) connection state, wherein the manual network selection mode information comprises: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user;
selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the manual network selection mode information;
and sending the configuration information of the target cell to the terminal.
Optionally, in the above embodiment of the present invention, the processor 800 is further configured to read a program in a memory, and perform the following operations:
according to the identification of the target CAG, configuring a neighboring cell supporting the target CAG for the terminal as a neighboring cell to be measured by the terminal;
receiving a measurement result reported by the terminal;
and selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the measurement result, or selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the measurement result and the identification of the target CAG.
Optionally, in the above embodiment of the present invention, the processor 800 is further configured to read a program in a memory, and perform the following operations:
and sending the manual network selection mode information reported by the terminal to the target cell.
Optionally, in the above embodiment of the present invention, the processor 800 is further configured to read a program in a memory, and perform the following operations:
and receiving the manual network selection mode information reported by the terminal in the radio resource control RRC connection state through an RRC message and/or a non-access stratum NAS message.
The embodiment of the present invention further provides a network side device, and as the principle of the network side device for solving the problem is similar to the method for processing the cell handover in the embodiment of the present invention, the implementation of the network side device may refer to the implementation of the method, and the repeated parts are not described again.
In summary, in the embodiments of the present invention, after entering the RRC connected state, the terminal sends the current manual network selection mode information to the network side device, and when performing cell switching processing on the terminal, the network side device selects, for the terminal, a cell supporting the target CAG selected by the user as the target cell according to the manual network selection mode information, so as to ensure that any cell to which the terminal in the manual network selection mode is switched in the connected state supports the target CAG selected by the user, thereby improving user experience.
It should be noted that the network side device provided in the embodiment of the present invention is a network side device capable of executing the processing method for cell handover, and all embodiments of the processing method for cell handover are applicable to the network side device and can achieve the same or similar beneficial effects.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when executed by a processor, the computer program implements each process of the above-described embodiment of the processing method for cell handover of an application network device, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
As shown in fig. 9, an embodiment of the present invention further provides a processing apparatus for cell handover, which is applied to a terminal, and includes:
a second sending module 91, configured to send manual network selection mode information to a network side device after the terminal enters a radio resource control RRC connected state, where the manual network selection mode information includes: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user;
a second receiving module 92, configured to receive configuration information of a target cell to be switched by the terminal, where the target cell supports the target CAG, and the configuration information is sent by the network side device.
Optionally, in the above embodiment of the present invention, the apparatus further includes:
a third receiving module, configured to receive a list of neighbor cells to be measured by the terminal, where the list is configured by the network side device; wherein the neighbor cell to be measured by the terminal supports the target CAG;
and the reporting module is used for measuring the source cell and the adjacent cells in the list and reporting the measurement result.
Optionally, in the foregoing embodiment of the present invention, the second sending module includes:
and the sending submodule is used for sending the manual network selection mode information to network side equipment through RRC information and/or NAS information after the terminal enters a Radio Resource Control (RRC) connection state.
The embodiment of the invention also provides a processing device for cell switching, and as the principle of solving the problems of the device is similar to the processing method for cell switching in the embodiment of the invention, the implementation of the device can refer to the implementation of the method, and the repeated parts are not described again.
In summary, in the embodiments of the present invention, after entering the RRC connected state, the terminal sends the current manual network selection mode information to the network side device, and when performing cell switching processing on the terminal, the network side device selects, for the terminal, a cell supporting the target CAG selected by the user as the target cell according to the manual network selection mode information, so as to ensure that any cell to which the terminal in the manual network selection mode is switched in the connected state supports the target CAG selected by the user, thereby improving user experience.
It should be noted that the processing apparatus for cell handover provided in the embodiments of the present invention is an apparatus capable of executing the processing method for cell handover, and all embodiments of the processing method for cell handover are applicable to the apparatus and can achieve the same or similar beneficial effects.
As shown in fig. 10, an embodiment of the present invention further provides a terminal, including: a transceiver 120, a memory 110, a processor 100 and a computer program stored on the memory 110 and executable on the processor 100, the transceiver 120 receiving and transmitting data under the control of the processor 100, the processor 100 reading the program in the memory and performing the following operations:
after the terminal enters a Radio Resource Control (RRC) connection state, manual network selection mode information is sent to network side equipment, wherein the manual network selection mode information comprises: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user;
and receiving configuration information of a target cell to be switched by the terminal, which is sent by the network side equipment, wherein the target cell supports the target CAG.
Optionally, in the foregoing embodiment of the present invention, the processor 100 is further configured to read a program in a memory, and execute the following operations:
receiving a list of neighbor cells to be measured by the terminal, configured by the network side device; wherein the neighbor cell to be measured by the terminal supports the target CAG;
and measuring the source cell and the adjacent cells in the list, and reporting the measurement result.
Optionally, in the foregoing embodiment of the present invention, the processor 100 is further configured to read a program in a memory, and execute the following operations:
and after the terminal enters a Radio Resource Control (RRC) connection state, the manual network selection mode information is sent to network side equipment through an RRC message and/or a non-access stratum (NAS) message.
The embodiment of the invention also provides a terminal, and as the principle of solving the problem of the terminal is similar to the cell switching processing method in the embodiment of the invention, the implementation of the terminal can refer to the implementation of the method, and repeated parts are not described again.
In summary, in the embodiments of the present invention, after entering the RRC connected state, the terminal sends the current manual network selection mode information to the network side device, and when performing cell switching processing on the terminal, the network side device selects, for the terminal, a cell supporting the target CAG selected by the user as the target cell according to the manual network selection mode information, so as to ensure that any cell to which the terminal in the manual network selection mode is switched in the connected state supports the target CAG selected by the user, thereby improving user experience.
It should be noted that, the terminal provided in the embodiments of the present invention is a terminal capable of executing the processing method for cell handover, and all embodiments of the processing method for cell handover are applicable to the terminal, and can achieve the same or similar beneficial effects.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when executed by a processor, the computer program implements each process of the above-mentioned embodiment of the processing method for cell handover of an application terminal, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (17)

1. A cell switching processing method is applied to network side equipment, and is characterized by comprising the following steps:
receiving manual network selection mode information reported by a terminal entering a Radio Resource Control (RRC) connection state, wherein the manual network selection mode information comprises: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user;
selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the manual network selection mode information;
and sending the configuration information of the target cell to the terminal.
2. The method according to claim 1, wherein the selecting a cell supporting the target CAG for the terminal as a target cell to be handed over by the terminal according to the manual network selection mode information comprises:
according to the identification of the target CAG, configuring a neighboring cell supporting the target CAG for the terminal as a neighboring cell to be measured by the terminal;
receiving a measurement result reported by the terminal;
and selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the measurement result, or selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the measurement result and the identification of the target CAG.
3. The method of claim 1, wherein after the sending the configuration information of the target cell to the terminal, the method further comprises:
and sending the manual network selection mode information reported by the terminal to the target cell.
4. The method of claim 1, wherein receiving manual network selection mode information reported by a terminal entering a Radio Resource Control (RRC) connected state comprises:
and receiving the manual network selection mode information reported by the terminal in the radio resource control RRC connection state through an RRC message and/or a non-access stratum NAS message.
5. A processing method for cell switching is applied to a terminal, and is characterized by comprising the following steps:
after the terminal enters a Radio Resource Control (RRC) connection state, manual network selection mode information is sent to network side equipment, wherein the manual network selection mode information comprises: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user;
and receiving configuration information of a target cell to be switched by the terminal, which is sent by the network side equipment, wherein the target cell supports the target CAG.
6. The method according to claim 5, wherein before the receiving the configuration information of the target cell to be handed over by the terminal, which is sent by the network side device, the method further comprises:
receiving a list of neighbor cells to be measured by the terminal, configured by the network side device; wherein the neighbor cell to be measured by the terminal supports the target CAG;
and measuring the source cell and the adjacent cells in the list, and reporting the measurement result.
7. The method according to claim 5, wherein the sending manual network selection mode information to a network side device after the terminal enters the RRC connection state includes:
and after the terminal enters a Radio Resource Control (RRC) connection state, the manual network selection mode information is sent to network side equipment through an RRC message and/or a non-access stratum (NAS) message.
8. A processing device for cell switching is applied to a network side device, and is characterized by comprising:
a first receiving module, configured to receive manual network selection mode information reported by a terminal that enters a radio resource control RRC connected state, where the manual network selection mode information includes: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user;
a selection module, configured to select, according to the manual network selection mode information, a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal;
and the first sending module is used for sending the configuration information of the target cell to the terminal.
9. A network-side device, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; wherein the transceiver receives and transmits data under control of a processor, the processor being configured to read a program in a memory and perform the following operations:
receiving manual network selection mode information reported by a terminal entering a Radio Resource Control (RRC) connection state, wherein the manual network selection mode information comprises: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user;
selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the manual network selection mode information;
and sending the configuration information of the target cell to the terminal.
10. The network-side device of claim 9, wherein the processor is further configured to read a program in the memory and perform the following operations:
according to the identification of the target CAG, configuring a neighboring cell supporting the target CAG for the terminal as a neighboring cell to be measured by the terminal;
receiving a measurement result reported by the terminal;
and selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the measurement result, or selecting a cell supporting the target CAG for the terminal as a target cell to be switched by the terminal according to the measurement result and the identification of the target CAG.
11. The network-side device of claim 9, wherein the processor is further configured to read a program in the memory and perform the following operations:
and sending the manual network selection mode information reported by the terminal to the target cell.
12. The network-side device of claim 9, wherein the processor is further configured to read a program in the memory and perform the following operations:
and receiving the manual network selection mode information reported by the terminal in the radio resource control RRC connection state through an RRC message and/or a non-access stratum NAS message.
13. A processing device for cell switching is applied to a terminal, and is characterized by comprising:
a second sending module, configured to send manual network selection mode information to a network side device after the terminal enters a radio resource control RRC connected state, where the manual network selection mode information includes: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user;
a second receiving module, configured to receive configuration information of a target cell to be switched by the terminal, where the target cell supports the target CAG, and the configuration information is sent by the network side device.
14. A terminal, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; wherein the transceiver receives and transmits data under control of a processor, the processor being configured to read a program in a memory and perform the following operations:
after the terminal enters a Radio Resource Control (RRC) connection state, manual network selection mode information is sent to network side equipment, wherein the manual network selection mode information comprises: indicating information indicating that the terminal is in a CAG mode of manually selecting a closed access group and an identifier of a target CAG selected by a user;
and receiving configuration information of a target cell to be switched by the terminal, which is sent by the network side equipment, wherein the target cell supports the target CAG.
15. The terminal of claim 14, wherein the processor is further configured to read a program in the memory and perform the following operations:
receiving a list of neighbor cells to be measured by the terminal, configured by the network side device; wherein the neighbor cell to be measured by the terminal supports the target CAG;
and measuring the source cell and the adjacent cells in the list, and reporting the measurement result.
16. The terminal of claim 14, wherein the processor is further configured to read a program in the memory and perform the following operations:
and after the terminal enters a Radio Resource Control (RRC) connection state, the manual network selection mode information is sent to network side equipment through an RRC message and/or a non-access stratum (NAS) message.
17. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of handling cell handover according to any one of claims 1 to 4; alternatively, the computer program realizes the steps of the processing method of cell handover as claimed in any one of claims 5-7 when executed by a processor.
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