CN115623550B - Method, system and readable storage medium for switching service cells based on network sharing - Google Patents
Method, system and readable storage medium for switching service cells based on network sharing Download PDFInfo
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W36/00—Hand-off or reselection arrangements
- H04W36/04—Reselecting a cell layer in multi-layered cells
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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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- H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
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Abstract
The invention discloses a service cell switching method, a system and a readable storage medium based on network sharing, wherein the service cell switching method is applied to a base station and comprises the following steps: acquiring an EPLMN list sent by a core network to a mobile terminal supporting network sharing and generating an EPLMN standby list; receiving an available adjacent cell reported by the mobile terminal, and determining whether to start an EPLMN list judgment mechanism or not based on the available adjacent cell; if the cell is started, judging whether the VPLMN5G NR cell in the available adjacent cell belongs to an EPLMN standby list; and if the cell belongs to the VPLMN5G NR cell, switching the service cell of the mobile terminal to the VPLMN. The invention switches the service cell of the mobile terminal into the VPLMN5G NR cell through network sharing, and the VPLMN5G NR cell provides service for the mobile terminal, thereby realizing the purpose of providing higher-quality network service for the mobile terminal.
Description
Technical Field
The present invention relates to the field of network communication technologies, and in particular, to a serving cell switching method and system based on network sharing, and a readable storage medium.
Background
Due to the development of random science and technology, the 4G/5G network covers most of the whole country, and people access the 4G/5G network through user equipment such as a mobile phone, a tablet personal computer and an intelligent watch to have the functions of voice call, video conversation, internet entertainment and the like. The user equipment is accessed to the 4G/5G network, one of the indispensable equipment is a base station, the base station is provided with at least one antenna for receiving electromagnetic wave signals, one antenna corresponds to one sector, and one sector corresponds to at least one cell and is used for communication of the user 4G/5G network.
When a user uses a user equipment to perform a voice call, the user may move from a current serving cell to another cell, which may cause the quality of service provided by the current serving cell to the user to be seriously degraded, resulting in a dropped call. Therefore, in order to avoid dropped calls, a handover of the currently serving cell is required.
The switching of the current serving cell can only be performed in a cell belonging to a HPLMN (Home Public Land Mobile Network), and cannot be switched to other cells with better service other than the HPLMN, and thus, the Mobile terminal cannot be provided with better service. Therefore, how to switch to a serving cell other than the HPLMN to provide a better network service is a current technical problem to be solved.
Disclosure of Invention
The invention mainly aims to provide a service cell switching method, a service cell switching system and a readable storage medium based on network sharing, and aims to solve the technical problem of how to switch to a service cell except an HPLMN to provide a better network service in the prior art.
In order to achieve the above object, the present invention provides a method for switching a serving cell based on network sharing, where the method for switching a serving cell is applied to a base station, and includes:
acquiring an EPLMN list sent by a core network to a mobile terminal supporting network sharing, and generating the EPLMN list into an EPLMN standby list;
receiving an available adjacent cell reported by the mobile terminal, and determining whether to start an EPLMN list judgment mechanism or not based on the available adjacent cell;
if an EPLMN list judgment mechanism is started, judging whether a VPLMN5G NR cell in the available adjacent cell belongs to the EPLMN standby list or not;
and if the cell belongs to the EPLMN standby list, switching the service cell of the mobile terminal to the VPLMN5G NR cell.
Optionally, the step of determining whether a VPLMN5G NR cell in the available neighboring cell belongs to the EPLMN standby list includes:
creating a first corresponding table between the EARFCN and the PCI in the existing HPLMN adjacent cell and a second corresponding table between the EARFCN and the PCI in the available adjacent cell;
determining a frequency point of a VPLMN5G NR cell in the available adjacent cell based on the first corresponding table and the second corresponding table;
and comparing the frequency points of the VPLMN5G NR cell in the available adjacent cell with the frequency points of the EPLMN standby list, and judging whether the VPLMN5G NR cell in the available adjacent cell belongs to the EPLMN standby list.
Optionally, the step of generating the EPLMN list as an EPLMN standby list comprises:
obtaining SIB1 information, processing the EPLMN list based on PLMN configuration information in the SIB1 information, and generating the EPLMN standby list to be stored corresponding to the mobile terminal.
Optionally, the step of determining whether to start an EPLMN list determination mechanism based on the available neighboring cell includes:
determining whether an HPLMN 5G NR cell exists in the available adjacent cell, and if the HPLMN 5G NR cell does not exist, judging whether a VPLMN5G NR cell exists in the available adjacent cell;
and if the VPLMN5G NR cell exists, determining to start the EPLMN list judgment mechanism.
Optionally, the step of receiving the available neighboring cell reported by the mobile terminal includes:
issuing measurement control configuration to the mobile terminal so that the mobile terminal generates a measurement report based on the measurement control configuration and reports the measurement report;
and receiving the measurement report, and issuing adjustment measurement configuration to the mobile terminal according to the measurement report so that the mobile terminal detects a neighbor cell list corresponding to the adjustment measurement configuration to obtain the available neighbor cells for reporting.
Optionally, the step of acquiring the EPLMN list sent by the core network to the mobile terminal supporting network sharing includes:
receiving the EPLMN list sent by a core network, wherein the EPLMN list is sent to the mobile terminal by the core network through Registration Accept message, and the EPLMN list is sent after the mobile terminal is determined to support network sharing based on the Registration Accept message.
Further, to achieve the above object, the present invention further provides a serving cell switching method based on network sharing, where the serving cell switching method is applied to a core network, and the core network supports network sharing through a preset interface, and the method includes:
sending a Registration Accept message to a mobile terminal, and judging whether the mobile terminal supports network sharing or not based on the Registration Accept message;
and if the mobile terminal supports network sharing, sending the EPLMN list in the Registration Accept message to a base station, so that the base station generates the EPLMN list into an EPLMN standby list, and switching the service cell of the mobile terminal based on the EPLMN standby list.
Optionally, the step of determining whether the mobile terminal supports network sharing based on the Registration Accept message includes:
judging whether a Registration Complete message replied by the mobile terminal based on the Registration Accept message is received;
and if the Registration Complete message is received, judging that the mobile terminal supports network sharing.
Further, to achieve the above object, the present invention further provides a serving cell switching system based on network sharing, where the serving cell switching system includes a base station and a core network, and the core network supports network sharing through a preset interface;
the serving cell switching system further comprises a memory, a processor and a control program stored on the memory for implementing the network sharing based serving cell switching method, wherein the processor is used for executing the control program to implement the steps of the network sharing based serving cell switching method as described above.
Further, to achieve the above object, the present invention may also provide a readable storage medium having a control program stored thereon, where the control program, when executed by a processor, implements the steps of the network sharing-based serving cell handover method as described above.
The invention provides a service cell switching method based on Network sharing, a system and a readable storage medium.A standby EPLMN list is generated by an acquired EPLMN (Equivalent Public Land Mobile Network) list which is sent to a Mobile terminal supporting Network sharing by a core Network, and after an available adjacent cell reported by the Mobile terminal is received, whether an EPLMN list judgment mechanism needs to be started or not is determined based on the available adjacent cell; if the judgment needs to be started, the VPLMN5G NR cell capable of providing high-quality service exists in the available adjacent cell, and then whether the VPLMN5G NR cell belongs to the EPLMN standby list is judged; if the VPLMN5G NR cell belongs to the HPLMN, the VPLMN5G NR cell can provide service for the mobile terminal based on network sharing, so that the service cell of the mobile terminal is switched to the VPLMN5G NR cell except the HPLMN, and the VPLMN5G NR cell can provide higher-quality network service for the mobile terminal.
Drawings
Fig. 1 is a flowchart illustrating a first embodiment of a network sharing-based serving cell handover method according to the present invention;
FIG. 2 is a flowchart illustrating a second embodiment of a method for handing over a serving cell based on network sharing according to the present invention;
FIG. 3 is a flowchart illustrating a third embodiment of a method for handing over a serving cell based on network sharing according to the present invention;
fig. 4 is a schematic structural diagram of a hardware operating environment according to an embodiment of the network sharing-based serving cell handover system of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic flowchart illustrating a first embodiment of a network sharing-based serving cell handover method according to the present invention.
While a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than here. Specifically, the serving cell switching method based on network sharing in this embodiment includes:
step S10, an EPLMN list sent by a core network to a mobile terminal supporting network sharing is obtained, and the EPLMN list is generated into an EPLMN standby list;
the service cell switching method based on network sharing is applied to a base station for accessing a mobile terminal and providing 4G/5G network service for the mobile terminal. The base station is connected with a core network supporting network sharing in a communication way, forms a network sharing system together with the core network and supports network communication with the mobile terminal, and the mobile terminal measures signals of a current accessed service cell and generates a measurement report message to return to the base station. And the base station switches the mobile terminal to a cell which can provide high-quality service according to the signal quality embodied by the measurement report message and based on network sharing.
Specifically, the core network first determines whether the mobile terminal supports network sharing. And the core network issues Registration Accept information to the mobile terminal, and the EPLMN supporting network sharing is issued to the mobile terminal through the Registration Accept information. The mobile terminal replies the Registration Accept message, the core network judges whether the Registration Complete message is replied, if the Registration Complete message is replied, the mobile terminal supports the EPLMN and the network sharing, and then the EPLMN is sent to the base station. And the base station acquires the EPLMN list which is sent by the core network to the mobile terminal supporting network sharing by receiving the sent EPLMN. And the base station generates an EPLMN standby list for storage by processing the acquired EPLMN. Specifically, the step of generating the EPLMN list into an EPLMN standby list includes:
step a, obtaining SIB1 information, and processing the EPLMN list based on PLMN configuration information in the SIB1 information, and generating the EPLMN standby list to be stored corresponding to the mobile terminal.
Further, in the Network sharing system, the base station may broadcast one or more pieces of PLMN (Public Land Mobile Network) information, that is, the broadcast may be a PLMN belonging to the HPLMN, or may be a PLMN in a PLMN and EHPLMN list of the HPLMN. Therefore, the base station cannot obtain the EPLMN list according to the PLMN information in its SIB1 message. In the 3GPP (3 rd Generation Partnership Project) protocol architecture, the EPLMN list sent by the core network to the mobile terminal through the Registration Accept message is unknown at the base station side, because the Registration Accept message is an NAS layer message, and the base station does not parse the NAS layer message, but only forwards the NAS layer message. Therefore, the base station needs to send the EPLMN list through the core network in the form of other applications to obtain the EPLMN list.
Furthermore, the SIB1 message of the base station itself is configured with PLMN configuration, so after obtaining the EPLMN list supporting network sharing sent by the core network, the SIB1 message of the base station itself is obtained, and the EPLMN list is configured according to the PLMN configuration information in the SIB1 message, so as to obtain an EPLMN standby list, which is stored in correspondence with the mobile terminal determined by the core network to support network sharing. And, for a plurality of mobile terminals, respective EPLMN standby lists can be formed for corresponding storage.
Step S20, receiving the available adjacent cells reported by the mobile terminal, and determining whether to start an EPLMN list judgment mechanism or not based on the available adjacent cells;
understandably, after the mobile terminal is accessed to the service cell, the signal quality of the accessed service cell is measured according to a certain period, and when the signal quality is poor, the available neighboring cells around are detected and reported to the base station, and the base station switches the service cell according to the received available neighboring cells. In this process, the measurement operation of the mobile terminal needs to be performed according to the configuration of the base station, that is, when to start measurement, and the period, frequency and format of the measurement are determined by the measurement control configuration of the base station, specifically, the step of receiving the available neighboring cell reported by the mobile terminal includes:
step b1, issuing measurement control configuration to the mobile terminal so that the mobile terminal generates a measurement report based on the measurement control configuration and reports the measurement report;
and b2, receiving the measurement report, and issuing adjustment measurement configuration to the mobile terminal according to the measurement report so that the mobile terminal detects a neighbor list corresponding to the adjustment measurement configuration to obtain the available neighbor for reporting.
Further, the base station sends the measurement control configuration to the mobile terminal user equipment through the measConfig cell carried by the RRC Connection reconfiguration message, where the measurement control configuration includes, but is not limited to, a measurement object parameter, a reporting configuration parameter, and a measurement identifier parameter. The Measurement Object parameter may be an individual Measurement Object identifier (Measurement Object ID), and for 4G or 5G, the Measurement Object is a single carrier frequency (frequency point); the reporting configuration parameter may be that each reporting configuration has an individual identifier (report config ID), including the type or period of the reported event, the threshold of the reported event, the maximum number of the measured reporting cells, and the like; the measurement identifier parameter is used to associate the measurement object parameter with the reporting configuration parameter, so as to reflect the measurement message reported by each measurement object.
Furthermore, after receiving the measurement control message, the mobile terminal measures the current serving cell, other neighboring cells in the base station and other neighboring cells in the neighboring base station according to the reporting configuration parameters, obtains the measurement result, and forms a measurement report to the base station.
It should be noted that the reporting may be performed according to a preset reporting condition, where the preset reporting condition is configured by the reporting configuration parameter, and may be configured to send the report periodically or in an event. If the measurement report is sent periodically, reporting the measurement report according to a preset reporting period; if the event is configured to be sent as an event, determining whether the measurement result includes an event for triggering reporting, and if the event is triggered to report that the Reference Signal Receiving Power (RSRP) of the current serving cell is measured to be less than-100 dBm, or less than-150 dBm, or less than-200 dBm, correspondingly determining whether the RSRP in the measurement result is less than-100 dBm, or less than-150 dBm, or less than-200 dBm, and if the RSRP in the measurement result is less than-100 dBm, or less than-150 dBm, or less than-200 dBm, reporting the measurement report to the base station, otherwise, not reporting the measurement report to the base station.
Further, after receiving the measurement report reported by the mobile terminal, the base station performs different operations according to different preset reporting conditions. If the preset reporting condition is periodic sending, analyzing the measurement report, acquiring the measurement result data of the current service cell, and judging whether the current service cell needs to be switched according to the preset switching condition. If the preset switching condition is that the measured RSRP of the current service cell is less than-100 dBm, less than-150 dBm, less than-200 dBm and the like within a continuous period of time, correspondingly judging whether the RSRP in the measurement result data of the current service cell is less than-100 dBm, less than-150 dBm, less than-200 dBm and the like within the continuous period of time, if so, indicating that the preset switching condition is met, and judging that the current service cell needs to be switched. If the preset reporting condition is event sending, it indicates that the measurement result in the measurement reporting message represents that the call quality of service provided by the current serving cell is poor, the measurement reporting message is reported, and reporting indicates that the preset switching condition is met, so that it is determined that the current serving cell needs to be switched.
Furthermore, if the base station determines that the serving cell needs to be switched according to the received measurement report, the base station issues an adjustment measurement configuration to the mobile terminal, where the adjustment measurement configuration at least includes a neighbor list configured by the base station. Through the adjustment measurement configuration, the mobile terminal detects the neighbor cell list configured by the base station, and simultaneously detects the surrounding available neighbor cells, and the available neighbor cells which can be used for providing service for the mobile terminal are obtained and reported to the base station.
Understandably, the available neighboring cells that can provide services for the Mobile terminal may be cells belonging to the same HPLMN, or may also be cells that do not belong to the same HPLMN, that is, cells belonging to a VPLMN (Visited Public Land Mobile Network). And, cells, whether belonging to the same HPLMN or not, can be divided into 4G LET and 5G NR cells. In this embodiment, it is necessary to determine whether to start an EPLMN list determination mechanism according to the type of the available neighboring cell, where the EPLMN list determination mechanism is a decision mechanism for determining whether to use a 5G NR cell that does not belong to the same HPLMN as a serving cell. Specifically, the step of determining whether to start the EPLMN list judgment mechanism based on the available neighboring cell includes:
step c1, determining whether a HPLMN 5G NR cell exists in the available adjacent cell, and if the HPLMN 5G NR cell does not exist, judging whether a VPLMN5G NR cell exists in the available adjacent cell;
and step c2, if the VPLMN5G NR cell exists, determining to start the EPLMN list judgment mechanism.
Further, whether the available neighboring cell has the 5G NR cell is a basis for determining whether to start the EPLMN list judgment mechanism, so it is first determined whether the available neighboring cell has the HPLMN 5G NR cell, and if the HPLMN 5G NR cell exists, the serving cell may be switched to the HPLMN 5G NR cell; and if the HPLMN 5G NR cell does not exist, continuously judging whether the VPLMN5G NR cell exists in the available adjacent cell. If the VPLMN5G NR cell exists, an EPLMN list judgment mechanism needs to be started to determine whether the service cell can be switched to the VPLMN5G NR cell. If no VPLMN5G NR cell exists in the available adjacent cells, the situation is shown that no cell capable of providing 5G service for the mobile terminal exists at present, an EPLMN list judgment mechanism is not started, and a cell capable of providing optimal performance is screened from the available adjacent cells and used as a service cell for switching.
Step S30, if the EPLMN list judging mechanism is started, judging whether the VPLMN5G NR cell in the available adjacent cell belongs to the EPLMN standby list;
step S40, if the EPLMN belongs to the EPLMN standby list, the service cell of the mobile terminal is switched to the VPLMN5G NR cell.
Furthermore, for the situation that the EPLMN list judgment mechanism needs to be started, whether the VPLMN5G NR cell belongs to the EPLMN standby list is judged by comparing the VPLMN5G NR cell in the available adjacent cell with the EPLMN standby list. If the VPLMN5G NR cell belongs to the EPLMN standby list, the VPLMN5G NR cell can be used for providing service for the mobile terminal, and therefore the service cell is switched to the VPLMN5G NR cell to provide better network service for the mobile terminal.
In this embodiment, an obtained EPLMN (Equivalent Public Land Mobile Network) list sent by a core Network to a Mobile terminal supporting Network sharing is generated as an EPLMN standby list, and after an available neighboring cell reported by the Mobile terminal is received, it is determined whether an EPLMN list judgment mechanism needs to be started based on the available neighboring cell; if the judgment needs to be started, the VPLMN5G NR cell capable of providing high-quality service exists in the available adjacent cell, and then whether the VPLMN5G NR cell belongs to the EPLMN standby list is judged; if the cell belongs to the HPLMN, the VPLMN5G NR cell can provide service for the mobile terminal based on network sharing, so that the service cell of the mobile terminal is switched to the VPLMN5G NR cell except the HPLMN, and the VPLMN5G NR cell can provide higher-quality network service for the mobile terminal.
Further, referring to fig. 2, a second embodiment of the method for handing over a serving cell based on network sharing is provided based on the first embodiment of the method for handing over a serving cell based on network sharing of the present invention.
The second embodiment of the network sharing based serving cell switching method is different from the first embodiment of the network sharing based serving cell switching method in that the step of determining whether the VPLMN5G NR cell in the available neighboring cell belongs to the EPLMN standby list comprises:
step S31, a first corresponding table between the EARFCN and the PCI in the existing HPLMN adjacent cell and a second corresponding table between the EARFCN and the PCI in the available adjacent cell are established;
step S32, determining the frequency point of the VPLMN5G NR cell in the available adjacent cell based on the first corresponding table and the second corresponding table;
step S33, comparing the frequency points of the VPLMN5G NR cells in the available adjacent cell with the frequency points of the EPLMN standby list, and judging whether the VPLMN5G NR cells in the available adjacent cell belong to the EPLMN standby list.
Further, the available neighboring Cell reported by the mobile terminal exists in the form of PCI (Physical Cell Identifier) information of EARFCN (E-UTRA Absolute Radio Frequency Channel Number), so that when determining whether the VPLMN5G NR Cell in the available neighboring Cell belongs to the EPLMN standby list, the determination is also performed according to EARFCN and PCI. Specifically, EARFCN and PCI in each existing HPLMN neighbor cell in the base station are created as a first correspondence table, and EARFCN and PCI of each available neighbor cell reported by the mobile terminal are created as a second correspondence table. And comparing the first corresponding table with the second corresponding table, and searching EARFCN and PCI of the VPLMN5G NR cell which exists in the second corresponding table and does not exist in the first corresponding table, wherein the EARFCN is the frequency point of the VPLMN5G NR cell in the available adjacent cell.
Furthermore, each PLMN in the EPLMN standby list stored by the base station also has respective frequency point information, so that the frequency points of the VPLMN5G NR cells in the available neighboring cells are compared with the frequency points of each PLMN in the EPLMN standby list, and whether the frequency points of each PLMN in the EPLMN standby list are consistent with the frequency points of the VPLMN5G NR cells in the available neighboring cells or not is judged. If the consistent frequency points exist, the VPLMN5G NR cell in the available adjacent cell can be judged to belong to the EPLMN standby list, and the VPLMN5G NR cell in the available adjacent cell can provide services for the mobile terminal based on network sharing.
In this embodiment, the VPLMN5G NR cell supporting network sharing is screened from the available neighboring cells, so as to switch the serving cell of the mobile terminal to the VPLMN5G NR cell, thereby facilitating provision of a higher-quality network service for the mobile terminal through the VPLMN5G NR cell.
Further, please refer to fig. 3, which shows a third embodiment of the method for handing over a serving cell based on network sharing according to the present invention. The serving cell switching method based on network sharing in this embodiment is applied to a core network, where the core network supports network sharing through a preset interface, and includes:
step S50, sending Registration Accept message to the mobile terminal, and judging whether the mobile terminal supports network sharing based on the Registration Accept message;
the serving cell switching method based on network sharing in this embodiment is applied to a core network in communication connection with a base station, and the core network supports network sharing through a preset interface, for example, an N32 interface. And sending the EPLMN list supporting the network sharing to the base station by the core network so as to facilitate the base station to carry out service cell switching on the mobile terminal based on the network sharing. Specifically, a core network issues a Registration Accept message to the mobile terminal, the EPLMN supporting network sharing is issued to the mobile terminal through the Registration Accept message, and whether the mobile terminal supports network sharing is determined based on the Registration Accept message. Wherein the step of judging whether the mobile terminal supports network sharing based on the Registration Accept message comprises:
step d1, judging whether a Registration Complete message replied by the mobile terminal based on the NAS Registration Accept message is received;
and d2, if the Registration Complete message is received, judging that the mobile terminal supports network sharing.
Furthermore, the mobile terminal replies to the Registration Accept message, the core network receives the replied message and judges whether the Registration Complete message is replied, if the Registration Complete message is replied, the mobile terminal supports the EPLMN and supports the network sharing, otherwise, the mobile terminal does not support the EPLMN and does not support the network sharing.
Step S60, if the mobile terminal supports network sharing, sending the EPLMN list in the Registration Accept message to a base station, so that the base station generates the EPLMN list into an EPLMN standby list, and switching the service cell of the mobile terminal based on the EPLMN standby list.
Further, if it is determined that the mobile terminal supports network sharing, the core network transmits the EPLMN to the base station. And the base station acquires the EPLMN list which is sent by the core network to the mobile terminal supporting network sharing by receiving the sent EPLMN. And further, the base station processes the acquired EPLMN to generate and store an EPLMN standby list, so that the mobile terminal can be switched to a serving cell providing better performance by switching the serving cell to the mobile terminal according to the stored EPLMN standby list.
In this embodiment, after it is determined that the mobile terminal supports network sharing, the EPLMN list corresponding to the mobile terminal is sent to the base station, and the base station generates and stores the EPLMN standby list, so that when the mobile terminal needs to perform service cell switching, a VPLMN5G NR cell that can provide high-quality service for the mobile terminal is screened through the EPLMN standby list to perform switching, so as to provide higher-quality network service for the mobile terminal.
In addition, an embodiment of the present invention further provides a serving cell switching system based on network sharing, where the serving cell switching system is the network sharing system described in the above embodiment, and includes a base station and a core network, and the core network supports network sharing through a preset interface, for example, an N32 interface.
Further, referring to fig. 4, fig. 4 is a schematic structural diagram of a hardware operating environment of a device according to an embodiment of the system for handing over a serving cell based on network sharing in the present invention.
As shown in fig. 4, the network sharing-based serving cell switching system may further include: a processor 1001, e.g. a CPU, a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005. The communication bus 1002 is used to implement connection communication among these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001 described previously.
Those skilled in the art will appreciate that the hardware architecture of the network sharing based serving cell handover system illustrated in fig. 4 does not constitute a limitation of the network sharing based serving cell handover system, and may include more or less components than those illustrated, or combine certain components, or a different arrangement of components.
As shown in fig. 4, a memory 1005, which is a storage medium, may include therein an operating system, a network communication module, a user interface module, and a control program for implementing a network sharing-based serving cell handover method. The operating system is a program for managing and controlling the network sharing-based service cell switching system and software resources, and supports the operation of a network communication module, a user interface module, a control program for realizing the network sharing-based service cell switching method and other programs or software; the network communication module is used to manage and control the network interface 1004; the user interface module is used to manage and control the user interface 1003.
In the hardware structure of the network sharing based service cell switching system shown in fig. 4, the network interface 1004 is mainly used for connecting to a background server and performing data communication with the background server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; the processor 1001 may call a control program stored in the memory 1005 for implementing the network sharing based serving cell handover method, and perform the following operations:
acquiring an EPLMN list sent by a core network to a mobile terminal supporting network sharing, and generating the EPLMN list into an EPLMN standby list;
receiving an available adjacent cell reported by the mobile terminal, and determining whether to start an EPLMN list judgment mechanism or not based on the available adjacent cell;
if the EPLMN list judging mechanism is started, judging whether a VPLMN5G NR cell in the available adjacent cell belongs to the EPLMN standby list;
and if the mobile terminal belongs to the EPLMN standby list, switching the service cell of the mobile terminal to the VPLMN5G NR cell.
Further, the step of determining whether the VPLMN5G NR cell in the available neighboring cell belongs to the EPLMN standby list includes:
creating a first corresponding table between the EARFCN and the PCI in the existing HPLMN adjacent cell and a second corresponding table between the EARFCN and the PCI in the available adjacent cell;
determining a frequency point of a VPLMN5G NR cell in the available neighbor cell based on the first corresponding table and the second corresponding table;
and comparing the frequency points of the VPLMN5G NR cell in the available adjacent cell with the frequency points of the EPLMN standby list, and judging whether the VPLMN5G NR cell in the available adjacent cell belongs to the EPLMN standby list.
Further, the step of generating the EPLMN list as an EPLMN standby list comprises:
obtaining SIB1 information, processing the EPLMN list based on PLMN configuration information in the SIB1 information, and generating the EPLMN standby list to be stored corresponding to the mobile terminal.
Further, the step of determining whether to start an EPLMN list judgment mechanism based on the available neighboring cell includes:
determining whether an HPLMN 5G NR cell exists in the available adjacent cell, and if the HPLMN 5G NR cell does not exist, judging whether a VPLMN5G NR cell exists in the available adjacent cell;
and if the VPLMN5G NR cell exists, determining to start the EPLMN list judgment mechanism.
Further, before the step of receiving the available neighboring cell reported by the mobile terminal, the processor 1001 may invoke a control program stored in the memory 1005 for implementing a network sharing-based serving cell handover method, and perform the following operations:
issuing measurement control configuration to the mobile terminal so that the mobile terminal generates a measurement report based on the measurement control configuration and reports the measurement report;
and receiving the measurement report, and issuing adjustment measurement configuration to the mobile terminal according to the measurement report so that the mobile terminal detects a neighbor cell list corresponding to the adjustment measurement configuration to obtain the available neighbor cells for reporting.
Further, the step of acquiring the EPLMN list sent by the core network to the mobile terminal supporting network sharing includes:
and receiving the EPLMN list sent by a core network, wherein the EPLMN list is sent to the mobile terminal by the core network through Registration Accept message, and the EPLMN list is sent after the mobile terminal supports network sharing based on the Registration Accept message.
Further, the processor 1001 may call a control program stored in the memory 1005 for implementing the network sharing based serving cell switching method, and perform the following operations:
sending a Registration Accept message to a mobile terminal, and judging whether the mobile terminal supports network sharing or not based on the Registration Accept message;
and if the mobile terminal supports network sharing, sending the EPLMN list in the Registration Accept message to a base station, so that the base station generates the EPLMN list into an EPLMN standby list, and switching the service cell of the mobile terminal based on the EPLMN standby list.
Further, the step of determining whether the mobile terminal supports network sharing based on the Registration Accept message includes:
judging whether a Registration Complete message replied by the mobile terminal based on the Registration Accept message is received;
and if the Registration Complete message is received, judging that the mobile terminal supports network sharing.
The specific implementation of the serving cell switching system based on network sharing in the present invention is basically the same as the embodiments of the serving cell switching method based on network sharing, and is not described herein again.
In addition, the embodiment of the invention also provides a readable storage medium.
The readable storage medium has stored thereon a control program which, when executed by the processor, implements the steps of the network sharing based serving cell handover method as described above.
The readable storage medium of the present invention may be a computer readable storage medium, and the specific implementation manner of the readable storage medium of the present invention is basically the same as that of each embodiment of the serving cell handover method based on network sharing, and will not be described herein again.
The present invention is described in connection with the accompanying drawings, but the present invention is not limited to the above embodiments, which are only illustrative and not restrictive, and those skilled in the art can make various changes without departing from the spirit and scope of the invention as defined by the appended claims, and all changes that come within the meaning and range of equivalency of the specification and drawings that are obvious from the description and the attached claims are intended to be embraced therein.
Claims (10)
1. A method for switching a service cell based on network sharing is applied to a base station and comprises the following steps:
acquiring an EPLMN list sent by a core network to a mobile terminal supporting network sharing, and generating the EPLMN list into an EPLMN standby list;
receiving an available adjacent cell reported by the mobile terminal, and determining whether to start an EPLMN list judgment mechanism or not based on the available adjacent cell;
if an EPLMN list judgment mechanism is started, judging whether a VPLMN5G NR cell in the available adjacent cell belongs to the EPLMN standby list or not based on a corresponding table created by an EARFCN and a PCI in the available adjacent cell;
and if the cell belongs to the EPLMN standby list, switching the service cell of the mobile terminal to the VPLMN5G NR cell.
2. The method for handing over a serving cell as claimed in claim 1, wherein the step of determining whether the VPLMN5G NR cell in the available neighbor cell belongs to the EPLMN standby list based on a correspondence table created by EARFCN and PCI in the available neighbor cell comprises:
creating a first corresponding table between the EARFCN and the PCI in the existing HPLMN adjacent cell and a second corresponding table between the EARFCN and the PCI in the available adjacent cell;
determining a frequency point of a VPLMN5G NR cell in the available adjacent cell based on the first corresponding table and the second corresponding table;
and comparing the frequency points of the VPLMN5G NR cells in the available neighboring cells with the frequency points of the EPLMN standby list, and judging whether the VPLMN5G NR cells in the available neighboring cells belong to the EPLMN standby list.
3. The method of serving cell handover as claimed in claim 1, wherein the step of generating the EPLMN list as an EPLMN standby list comprises:
obtaining SIB1 information, processing the EPLMN list based on PLMN configuration information in the SIB1 information, and generating the EPLMN standby list to be stored corresponding to the mobile terminal.
4. The method of serving cell handover as claimed in claim 1, wherein the step of determining whether to initiate an EPLMN list decision mechanism based on the available neighbor cell comprises:
determining whether a HPLMN 5G NR cell exists in the available adjacent cell, and if the HPLMN 5G NR cell does not exist, judging whether a VPLMN5G NR cell exists in the available adjacent cell;
and if the VPLMN5G NR cell exists, determining to start the EPLMN list judgment mechanism.
5. The method as claimed in any of claims 1-4, wherein the step of receiving the available neighboring cells reported by the mobile terminal comprises:
sending a measurement control configuration to the mobile terminal so that the mobile terminal can generate a measurement report based on the measurement control configuration for reporting;
and receiving the measurement report, and issuing adjustment measurement configuration to the mobile terminal according to the measurement report so that the mobile terminal detects a neighbor cell list corresponding to the adjustment measurement configuration to obtain the available neighbor cells for reporting.
6. The serving cell handover method according to any of claims 1 to 4, wherein the step of obtaining the EPLMN list sent by the core network to the mobile terminal supporting network sharing comprises:
receiving the EPLMN list sent by a core network, wherein the EPLMN list is sent to the mobile terminal by the core network through a Registration Accept message, and the EPLMN list is sent after the mobile terminal is determined to support network sharing based on the Registration Accept message.
7. A service cell switching method based on network sharing is characterized in that the service cell switching method is applied to a core network, and the core network supports network sharing through a preset interface, and comprises the following steps:
sending a Registration Accept message to a mobile terminal, and judging whether the mobile terminal supports network sharing or not based on the Registration Accept message;
if the mobile terminal supports network sharing, sending an EPLMN list in the Registration Accept message to a base station so that the base station can generate the EPLMN list into an EPLMN standby list, and after determining to start an EPLMN list judgment mechanism based on an available neighboring cell reported by the mobile terminal, judging whether a VPLMN5G NR cell in the available neighboring cell belongs to the EPLMN standby list based on a corresponding table created by EARFCN and PCI in the available neighboring cell by the base station; and if the mobile terminal belongs to the VPLMN5G NR cell, switching the service cell of the mobile terminal to the VPLMN.
8. The serving cell handover method of claim 7, wherein the step of determining whether the mobile terminal supports network sharing based on the Registration Accept message comprises:
judging whether a Registration Complete message replied by the mobile terminal based on the Registration Accept message is received;
and if the Registration Complete message is received, judging that the mobile terminal supports network sharing.
9. A service cell switching system based on network sharing is characterized in that the service cell switching system comprises a base station and a core network, and the core network supports network sharing through a preset interface;
the serving cell handover system further comprises a memory, a processor and a control program stored on the memory for implementing the network sharing based serving cell handover method, the processor being configured to execute the control program to implement the steps of the network sharing based serving cell handover method according to any of claims 1 to 8.
10. A readable storage medium, having a control program stored thereon, which when executed by a processor, performs the steps of the network sharing based serving cell handover method according to any one of claims 1 to 8.
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| CN106376015A (en) * | 2015-07-20 | 2017-02-01 | 中兴通讯股份有限公司 | Selection method and device for re-establishing cell in network sharing |
| CN106376037B (en) * | 2015-07-20 | 2019-12-03 | 中兴通讯股份有限公司 | Across PLMN switching method, base station and communication system in a kind of base station |
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