CN112492694B - Slice management method, management unit, terminal equipment and medium of double-card terminal - Google Patents
Slice management method, management unit, terminal equipment and medium of double-card terminal Download PDFInfo
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Abstract
The disclosure provides a slice management method, a management unit, a terminal device and a medium for a dual-card terminal, wherein the method comprises the following steps: after a main card of a terminal initiates a first slicing request to a first base station and a first core network connected with the main card, judging whether the main card can bear the slicing service requested; if the main card can not bear the slicing service, judging whether the auxiliary card of the terminal can bear the slicing service; if the auxiliary card can bear the slicing service, a main and auxiliary card switching notification is initiated to the terminal, so that the terminal performs main and auxiliary card switching after receiving the main and auxiliary card switching notification, and the auxiliary card initiates a second slicing request for requesting the slicing service to a second base station and a second core network connected with the auxiliary card. According to the embodiment of the disclosure, the newly added management unit flexibly switches the main card and the auxiliary card according to the supporting capability of the main card and the auxiliary card on the slice, so that the slice service is flexibly managed, and the user experience is improved.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a slice management method of a dual card terminal, a slice management unit of the dual card terminal, a terminal device, and a computer readable storage medium.
Background
The dual-card dual-standby terminal is connected with two SIM cards (Subscriber Identity Module, user identity identification cards), when one SIM card is used as a main card to keep a data link unobstructed, a sub-card cannot be kept on the network even when the main card occupies a voice CS link due to the fact that the data link cannot be established, and therefore slicing services served by the sub-card may not be normally started. If the TA (tracking Area) at this time is the TA, the slice service carried by the main card cannot be switched on, and the sub card can just carry the slice service, but because the user cannot perceive the network configuration and the slice arrangement, the terminal or the network is required to automatically switch the main card and the sub card to promote the user experience, and the slice signed by the sub card is registered to request to provide the slice service for the user. However, at present, no related scheme for automatically and flexibly allocating the slice services carried by the main card and the auxiliary card exists.
Disclosure of Invention
The present disclosure provides a slice management method of a dual card terminal, a slice management unit of a dual card terminal, a terminal device, and a computer-readable storage medium to solve at least the above problems.
According to an aspect of the embodiments of the present disclosure, there is provided a slice management method of a dual card terminal, including:
after a main card of a terminal initiates a first slicing request to a first base station and a first core network connected with the main card, judging whether the main card can bear the slicing service requested;
if the main card can not bear the slicing service, judging whether the auxiliary card of the terminal can bear the slicing service;
if the auxiliary card can bear the slicing service, a main and auxiliary card switching notification is initiated to the terminal, so that the terminal performs main and auxiliary card switching after receiving the main and auxiliary card switching notification, and the auxiliary card initiates a second slicing request for requesting the slicing service to a second base station and a second core network connected with the auxiliary card.
In one embodiment, the primary card and the secondary card are subscriber identity cards belonging to different operators.
In one embodiment, the determining whether the master card is capable of carrying the requested slice service includes:
receiving current wireless resource information reported by a wireless resource management network element of the first base station;
judging whether the current wireless resource information can guarantee the network service quality corresponding to the slicing service;
and if the network service quality corresponding to the slicing service cannot be ensured, judging that the main card cannot bear the slicing service.
In one embodiment, the determining whether the master card is capable of carrying the requested slice service includes:
acquiring the load of a first mobility access management network element and the average routing delay of a first session management network element from the first core network;
judging whether the load of the first mobility access management network element exceeds a first preset threshold value and whether the average routing delay of the first session management network element exceeds a second preset threshold value;
and if the load of the first mobility access management network element exceeds a first preset threshold or the average routing delay of the first session management network element exceeds a second preset threshold, judging that the master card cannot bear the slicing service.
In one embodiment, the determining whether the master card is capable of carrying the requested slice service includes:
acquiring a slice registration confirmation message returned by a first network slice selection function network element to the terminal from the first core network;
judging whether the first slice request is refused by the first core network or not based on the slice registration confirmation message;
and if the first slicing request is refused by the first core network, judging that the main card cannot bear the slicing service.
In one embodiment, the method further comprises:
acquiring the slice connection records of the first base station and the adjacent cells thereof, and the slice connection records of the second base station and the adjacent cells thereof;
the determining whether the master card can carry the requested slicing service includes:
judging whether the first base station and the adjacent cell thereof are connected with the slicing service or not respectively based on the slicing connection records of the first base station and the adjacent cell thereof;
if the first base station and the adjacent cells thereof are not connected with the slicing service, judging that the main card can not bear the slicing service;
the judging whether the sub card of the terminal can bear the slicing service comprises the following steps:
judging whether the second base station and the adjacent cell thereof are connected with the slicing service or not respectively based on the slicing connection records of the second base station and the adjacent cell thereof;
and if the second base station or the adjacent cell of the second base station is connected with the slicing service, judging that the auxiliary card can bear the slicing service.
In one embodiment, the method further comprises:
acquiring a first slice number of the slice service under an operator to which the main card belongs and a second slice number of the slice service under the operator to which the auxiliary card belongs; the method comprises the steps of,
establishing a mapping relation list of the slicing service under the operators to which the main card and the auxiliary card belong based on the first slicing number and the second slicing number;
the determining whether the master card can carry the requested slicing service includes:
judging whether the main card can bear the requested slicing service or not based on the first slicing number;
the judging whether the sub card of the terminal can bear the slicing service comprises the following steps:
searching a second slice number corresponding to the first slice number based on the mapping relation list; the method comprises the steps of,
and judging whether the auxiliary card of the terminal can bear the slicing service or not based on the second slicing number.
According to another aspect of the embodiments of the present disclosure, there is also provided a slice management unit of a dual card terminal, including:
the first judging module is configured to judge whether the main card of the terminal can bear the requested slicing service after the main card initiates a first slicing request to a first base station and a first core network connected with the main card;
the second judging module is used for judging whether the auxiliary card of the terminal can bear the slicing service or not when the first judging module judges that the main card can not bear the slicing service;
and the switching notification unit is arranged to initiate a main and auxiliary card switching notification to the terminal when the second judgment module judges that the auxiliary card can bear the slicing service, so that the terminal can switch the main and auxiliary cards after receiving the main and auxiliary card switching notification, and the auxiliary card initiates a second slicing request for requesting the slicing service to a second base station and a second core network connected with the terminal.
According to still another aspect of the embodiments of the present disclosure, there is provided a terminal device including a memory and a processor, the memory storing a computer program, and the processor executing the slice management method of the dual card terminal when the processor runs the computer program stored in the memory.
According to still another aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the slice management method of the dual card terminal.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
according to the slice management method for the dual-card terminal, after a main card of the terminal initiates a first slice request to a first base station and a first core network connected with the main card, whether the main card can bear the requested slice service is judged; if the main card can not bear the slicing service, judging whether the auxiliary card of the terminal can bear the slicing service; if the auxiliary card can bear the slicing service, a main and auxiliary card switching notification is initiated to the terminal, so that the terminal performs main and auxiliary card switching after receiving the main and auxiliary card switching notification, and the auxiliary card initiates a second slicing request for requesting the slicing service to a second base station and a second core network connected with the auxiliary card. According to the embodiment of the disclosure, the newly added management unit flexibly switches the main card and the auxiliary card according to the supporting capability of the main card and the auxiliary card on the slice, so that the slice service is flexibly managed, and the user experience is improved.
Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the disclosure. The objectives and other advantages of the disclosure will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain, without limitation, the disclosed embodiments.
Fig. 1 is a flow chart of a slice management method of a dual-card terminal according to a first embodiment of the disclosure;
fig. 2 is a flow chart of a slice management method of a dual-card terminal according to a second embodiment of the disclosure;
fig. 3 is a flow chart of a slice management method of a dual-card terminal according to a third embodiment of the disclosure;
fig. 4 is a schematic structural diagram of a slice management unit of a dual card terminal according to a fourth embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a terminal device according to a fifth embodiment of the present disclosure.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the following detailed description of the specific embodiments of the present disclosure will be given with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order; moreover, embodiments of the present disclosure and features of embodiments may be arbitrarily combined with each other without conflict.
In the following description, suffixes such as "module", "component", or "unit" for representing elements are used only for facilitating the description of the present disclosure, and are not of specific significance per se. Thus, "module," "component," or "unit" may be used in combination.
In order to solve the above problems, the embodiment of the disclosure optimizes the management flow of the slice service for the heterogeneous dual-card terminal, and by adding a new management unit, the management unit judges the slice capability of the base station where the main and auxiliary cards reside and the adjacent cells, and then the block carries out the soft handover of the main and auxiliary cards according to the supporting capability of the main and auxiliary cards to the slice, so as to realize flexible management of the slice service, avoid the problems that a single SIM card cannot guarantee the requirement of a user on the quality of service (Qos, quality of Service) of the slice network at a certain TA or a certain moment, and the like, and simultaneously promote the experience of the user using the 5G service.
Referring to fig. 1, fig. 1 is a flow chart of a slice management method for a dual-card terminal according to a first embodiment of the present disclosure, where a main card and an auxiliary card of the dual-card terminal are user id cards of different operators, and the method is applied to a slice management unit of the dual-card terminal, hereinafter referred to as a management unit, and includes steps S101-S103.
Because the core network, the bearing network and the wireless network of the operators to which the different network main and auxiliary cards belong are different, the unified allocation of session requests and slice management between the two SIM cards of the terminal cannot be realized at the network side, so that the slice management unit is newly added in the embodiment, and the slice management unit can be deployed at the terminal side (a non-shared co-building scene) or can be deployed at the gNB-CU (a base station shared co-building scene) to realize the management of the slice switching of the different network double cards so as to realize the flexible allocation of the main and auxiliary cards when a user requests a slice service, and improve the user experience.
In step S101, after the main card of the terminal initiates a first slicing request to the first base station and the first core network connected with the main card, it is determined whether the main card can carry the requested slicing service, if the main card cannot carry the slicing service, step S102 is executed, otherwise, the process is ended, and the slicing registration process is completed by adopting the prior art.
Specifically, when a master card (SIM 1, connected first base station gNB 1) of the terminal initiates a slicing request, the terminal reports a message such as sui-1 (Subscription Concealed Identifier, user identity), requested nsai (PLMN 1) (requested Single Network Slice Selection Assistance Information, network slicing information) to the gNB1, the first core network of PLMN1 (Public Land Mobile Network, first public land mobile network). The management unit judges whether the main card can bear the slicing service of the slicing request.
It will be appreciated that PLMN1 and PLMN2 correspond to different operator networks, respectively.
Specifically, the management unit determines whether the master card can carry the slicing service of the slicing request, and determines whether the following cases occur: the RRM (Radio Resource Management, radio resource management network element) of gbb 1 feeds back to the management unit that the current radio resource cannot guarantee Qos corresponding to the slice (e.g. congestion in hot spot area, routing delay is greater than the Qos requirement of unmanned slice, etc.); b. the AMF (Access and Mobility Management Function, mobility access and management function) \smf (Session Management Function ) selected by the terminal may allow the terminal to access a slice of the nsai, but the management unit sends an amf\smf load to the core network requesting to obtain the terminal connection and an average routing delay, if the amf\smf load exceeds a first preset threshold or the average routing delay exceeds a second preset threshold for a large amount (e.g., the terminal is in a remote area, the amf\smf is directed to a home location that is farther away). Nssf (Network SliceSelection Function ) returns a registration acknowledgement message to the terminal: since the subscription is not signed or the current TA is not in the slice service range, the Requested nsai is rejected by the core network.
In one embodiment, for the case that the class a master card cannot carry the slicing service, the determining whether the master card can carry the slicing service of the slicing request includes the following steps:
receiving current wireless resource information reported by a wireless resource management network element of the first base station;
judging whether the current wireless resource information can guarantee the network service quality corresponding to the slicing service;
and if the network service quality corresponding to the slicing service cannot be ensured, judging that the main card cannot bear the slicing service of the slicing request.
In one embodiment, for the case that the b-class master card cannot carry the slicing service, the determining whether the master card can carry the slicing service of the slicing request includes the following steps:
acquiring the load of a first mobility access management network element and the average routing delay of a first session management network element from the first core network;
judging whether the load of the first mobility access management network element exceeds a first preset threshold value and whether the average routing delay of the first session management network element exceeds a second preset threshold value;
if the load of the first mobility access management network element exceeds a first preset threshold or the average routing delay of the first session management network element exceeds a second preset threshold, judging that the master card cannot bear the slicing service of the slicing request.
In one embodiment, for the case that the class c master card cannot carry the slicing service, the determining whether the master card can carry the slicing service of the slicing request includes the following steps:
acquiring a slice registration confirmation message returned by a first network slice selection function network element to the terminal from the first core network;
judging whether the first slice request is refused by the first core network or not based on the slice registration confirmation message;
and if the first slicing request is refused by the first core network, judging that the main card cannot bear slicing service of the slicing request.
In step S102, it is determined whether the sub-card of the terminal can carry the slicing service, if the sub-card can carry the slicing service, step S103 is executed, otherwise, the flow is ended.
In this embodiment, the manner of determining whether the sub-card can carry the slicing service is the same as that of determining whether the main card can carry the slicing service, for example, RRM of gNB1 feeds back the current radio resource to the management unit, where the Qos corresponding to the slicing cannot be guaranteed, at this time, the current radio resource of gNB2 where the sub-card SIM2 resides is determined, if the gNB2 can guarantee the current radio resource of the slicing service, it is indicated that the sub-card can carry the slicing service, at this time, the management unit initiates a main-sub-card switching notification to the terminal, so as to implement flexible switching of the main-sub-card and initiation of the slicing service, and promote network experience of the user.
In step S103, a primary-secondary card switching notification is initiated to the terminal, so that the terminal performs primary-secondary card switching after receiving the primary-secondary card switching notification, and the secondary card initiates a second slicing request for requesting the slicing service to a second base station and a second core network to which the secondary card is connected.
Specifically, it is determined that the sub-card can carry a request nsai (PLMN 2) slice, and the management unit notifies the user to the upper layer application: and performing automatic soft switching of the main card and the auxiliary card. If the user does not reject the request, the management unit will inform the terminal to switch the main card and the sub card, then the terminal switches the current sub card into the main card, the management unit will inform the terminal to initiate the slice registration request again in the PLMN2 network, and the request NSSAI of the terminal will send SUCI-2\request NSSAI (PLMN 2) and other messages to the network of PLMN 2. Further, at this time, the terminal side also needs to perform relationship mapping processing on the urs slice routing rule, and parameters in the urs rule of the SIM card 1: the APP ID/DNN/SSC MODE is mapped to URSP rule parameters of the SIM card 2 correspondingly, so that slice management of the terminal side is realized.
Referring to fig. 2, fig. 2 is a flow chart of a slice management method of a dual-card terminal provided in a second embodiment of the present disclosure, based on the first embodiment, the carrying condition of the main card and the sub card for the slice service in the embodiment considers the carrying condition of the adjacent cell for the slice service, and compared with the first embodiment, the embodiment further includes step S201, further divides step S101 into step S101a, and further divides step S102 into step S102a.
In step S201, a slice connection record of the first base station and its neighboring cells and a slice connection record of the second base station and its neighboring cells are acquired.
Specifically, the management unit obtains the nsai number which is connected recently and the nsai number which is connected to all cells adjacent to the current cell from the base station, so that the management unit obtains the slice service which can be provided by the gcb where the main card and the auxiliary card are located and the slices which can be provided by the gcb of the adjacent cells, and the newly added management unit also collects the carrier frequencies of the gcb 1, gcb 2, the adjacent cells of the gcb 1 and the adjacent cells of the gcb 2 for cell reselection.
In step S101a, based on the slice connection records of the first base station and the neighboring cells, it is respectively determined whether the first base station and the neighboring cells are once connected to the slice service, and if neither the first base station nor the neighboring cells are connected to the slice service, it is determined that the main card cannot carry the slice service.
Further, if the first base station is not connected to the slicing service and belongs to any situation that the slicing service cannot be carried, but the adjacent cell gNB3 is connected to the slicing service and can carry the slicing service, the method does not enter a subsequent primary-secondary card switching process, and instructs the terminal to perform cell reselection, specifically, issues a priority of updating a cell reselection rule to the terminal, for example, increases the priority of the gNB3 and sends the gNB3 cell carrier frequency collected by the management unit to the terminal, the terminal searches the cell according to the gNB3 cell carrier frequency and performs base station signal measurement on the cell, if the result of cell measurement rsrp\rsrq\sinr meets the reselection threshold requirement, cell switching is completed, and the registration process of requested NSSAI (PLMN 1) slicing is continuously executed through the gNB 3.
When the management unit is arranged on the terminal side, whether the numbers of the current gNB1 and gNB2 of the terminal are changed or not is judged, if the numbers are changed, the management unit sends a request to the gNB with the changed numbers, and the request gNB sends the NSSAI numbers which are connected recently and NSSAI numbers which are connected to all cells adjacent to the current cell to the management unit. Thus, the management unit will obtain the slice service provided by the gNB where the main card and the sub card are located, and the slices provided by the adjacent cells gNB. The management unit will also collect the carrier frequencies of gNB1, gNB2 and gNB1, gNB2 neighbor cells for cell reselection.
It should be noted that, when the above-mentioned cell reselection step is set on the terminal side with respect to the management Unit, in some embodiments, the management Unit may also be set on the shared co-established base station side, for example, different PLMN network radio resources to which the main card and the auxiliary card belong are deployed on the same base station, in this case, terminal domain splitting and splitting are performed by broadcasting different PLMNs, the management Unit may be deployed on a CU (Centralized Unit) of the shared base station gNB, and the management Unit notifies the terminal of the cell reselection message through SIB broadcast message, and issues the message of priority, carrier frequency, etc. of the cell reselection to the terminal from the base station side broadcast message, without collecting information of carrier frequencies, etc. of neighboring cells in advance, and then transmitting the information to the terminal.
In step S102a, based on the slice connection records of the second base station and the neighboring cells thereof, it is respectively determined whether the second base station and the neighboring cells thereof are once connected to the slice service, and if the second base station or the neighboring cells of the second base station are once connected to the slice service, it is determined that the sub-card can carry the slice service.
It should be noted that, in the present embodiment, the bearer slice service considers the above-mentioned c-class situation, and in some embodiments, the above-mentioned a-class and b-class situations may be combined as optimization.
Specifically, it is first determined whether the second base station is once connected to the slicing service, if the second base station is once connected to the slicing service, the second base station can carry the slicing service, and in this case, the method can be further combined with the above-mentioned method to analyze the quality of service of the slicing network, the amf\smf load and the average routing delay, and further determine whether the neighboring cell of the second base station is connected to the slicing service when the quality of service of the network fails to meet the requirement and the load exceeds the first preset threshold or the average routing delay exceeds the second preset threshold (the above-mentioned cases of a and b), and then determine the information such as the network quality of service and the load thereof, so as to select the preferred base station to complete the cell handover and further implement the slicing service.
Referring to fig. 3, fig. 3 is a slice management method of a dual card terminal according to a third embodiment of the present disclosure, and based on the first embodiment, the method further includes step S301 and step S302, and further divides step S101 into step S101b, and further divides step S102 into step S102b and step S102c.
In step S301, a first slice number of the slice service under the operator to which the primary card belongs and a second slice number of the slice service under the operator to which the secondary card belongs are obtained;
in step S302, a mapping relationship list of the slice service under the operators to which the primary card and the secondary card belong is established based on the first slice number and the second slice number.
Specifically, the CU control module of each gNB will record the nsai slice number to which it is connected. The management unit stores a mapping relation list of operators to which the main and auxiliary SIM cards belong for slicing NSSAI: for example, in PLMN1, nsai 1 corresponds to nsai 9 in PLMN 2.
In step S101b, it is determined, based on the first slice number, whether the master card is capable of carrying the slice service of the slice request.
Specifically, whether the main card can bear the slicing service is rapidly judged by judging whether the main card resident base station is connected with the first slicing number.
In step S102b, searching for a second slice number corresponding to the first slice number based on the mapping relationship list; the method comprises the steps of,
in step S102c, it is determined, based on the second slice number, whether the sub card of the terminal can carry the slice service.
Specifically, if the primary card fails to carry the three types of a, b and c of slicing service, and if the resident cell of the primary card fails to switch with the adjacent cell or the phenomenon of a and b occurs after switching, the management unit will obtain the second slice number request nsai (PLMN 2) corresponding to the secondary card according to the first slice number requested nsai (PLMN 1) of the primary card and the mapping relationship list of the primary and secondary card slices nsai, then determine to obtain the gNB2 where the current secondary card resides and the NSSAI that can be carried or connected by the adjacent cell, then determine whether the secondary card gNB2 and the adjacent cell can use the request nsai (PLMN 2) to slice, and if it is determined that the secondary card can carry the request nsai (PLMN 2) to slice, the management unit will notify the upper layer application to the user: and performing automatic soft switching of the main card and the auxiliary card. If the user does not reject the request, the management unit will inform the terminal to switch the primary card and the secondary card. After the secondary card SIM2 becomes the primary card, the management unit will notify the terminal to initiate the slice registration request again in the PLMN2 network. The request NSSAI of the terminal request sends a SUCI-2/request NSSAI (PLMN 2) message to the network of PLMN 2.
Further, if the above-mentioned a/b type situation occurs in the Gnb2 during the slice request process, that is, gnb2 can connect the slice service, but the Qos effect is not good, the management unit may perform a neighboring cell handover step, that is, the management unit searches for a neighboring cell in the Gnb2 cell, whether there is a connection record of the request nsai (PLMN 2), and if there is a connection record, performs a cell handover, specifically referring to the above-mentioned embodiment.
Based on the same technical concept, the fourth corresponding embodiment of the present disclosure further provides a slice management unit of a dual card terminal, as shown in fig. 4, where the management unit includes:
a first judging module 41, configured to judge whether the main card of the terminal can carry the requested slicing service after the main card initiates a first slicing request to a first base station and a first core network connected with the main card;
a second judging module 42 configured to judge whether the sub card of the terminal can carry the slicing service when the first judging module judges that the main card cannot carry the slicing service;
and the switching notification unit 43 is configured to initiate a main-sub card switching notification to the terminal when the second judging module judges that the sub card can carry the slicing service, so that the terminal performs main-sub card switching after receiving the main-sub card switching notification, and the sub card initiates a second slicing request for requesting the slicing service to a second base station and a second core network to which the sub card is connected.
Based on the same technical concept, the fifth corresponding embodiment of the present disclosure further provides a terminal device, as shown in fig. 5, where the terminal device includes a memory 51 and a processor 52, the memory 51 stores a computer program, and when the processor 52 runs the computer program stored in the memory 51, the processor 52 executes the slice management method of the dual card terminal.
Based on the same technical concept, the sixth embodiment of the present disclosure correspondingly provides a computer readable storage medium, on which a computer program is stored, the computer program, when executed by a processor, executing the slice management method of the dual card terminal.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, functional modules/units in the apparatus, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed cooperatively by several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present disclosure, and not for limiting the same; although the present disclosure has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present disclosure.
Claims (9)
1. The slice management method of the double-card terminal is characterized by being applied to a slice management network element, wherein the slice management network element is deployed at a terminal side under a base station non-sharing co-construction scene, the slice management network element is deployed at a centralized control unit of a shared base station under the base station sharing co-construction scene, and a main card and a sub card of the double-card terminal are user identity identification cards belonging to different operators, and the slice management method comprises the following steps:
after a main card of a terminal initiates a first slicing request to a first base station and a first core network connected with the main card, judging whether the main card can bear the slicing service requested;
if the main card can not bear the slicing service, judging whether the auxiliary card of the terminal can bear the slicing service;
if the auxiliary card can bear the slicing service, a main and auxiliary card switching notification is initiated to the terminal, so that the terminal performs main and auxiliary card switching after receiving the main and auxiliary card switching notification; the method comprises the steps of,
and responding to the terminal to switch the current auxiliary card into the main card, and initiating a second notification to the terminal, wherein the second notification is used for reminding the terminal to initiate a slicing request again in a second public land mobile network of a second core network, so that the terminal can initiate a second slicing request for requesting the slicing service to a second base station and the second core network connected with the auxiliary card of the terminal after receiving the second notification.
2. The method of claim 1, wherein the determining whether the master card is capable of carrying the requested slice service comprises:
receiving current wireless resource information reported by a wireless resource management network element of the first base station;
judging whether the current wireless resource information can guarantee the network service quality corresponding to the slicing service;
and if the network service quality corresponding to the slicing service cannot be ensured, judging that the main card cannot bear the slicing service.
3. The method of claim 1, wherein the determining whether the master card is capable of carrying the requested slice service comprises:
acquiring the load of a first mobility access management network element and the average routing delay of a first session management network element from the first core network;
judging whether the load of the first mobility access management network element exceeds a first preset threshold value and whether the average routing delay of the first session management network element exceeds a second preset threshold value;
and if the load of the first mobility access management network element exceeds a first preset threshold or the average routing delay of the first session management network element exceeds a second preset threshold, judging that the master card cannot bear the slicing service.
4. The method of claim 1, wherein the determining whether the master card is capable of carrying the requested slice service comprises:
acquiring a slice registration confirmation message returned by a first network slice selection function network element to the terminal from the first core network;
judging whether the first slice request is refused by the first core network or not based on the slice registration confirmation message;
and if the first slicing request is refused by the first core network, judging that the main card cannot bear the slicing service.
5. The method as recited in claim 1, further comprising:
acquiring the slice connection records of the first base station and the adjacent cells thereof, and the slice connection records of the second base station and the adjacent cells thereof;
the determining whether the master card can carry the requested slicing service includes:
judging whether the first base station and the adjacent cell thereof are connected with the slicing service or not respectively based on the slicing connection records of the first base station and the adjacent cell thereof;
if the first base station and the adjacent cells thereof are not connected with the slicing service, judging that the main card can not bear the slicing service;
the judging whether the sub card of the terminal can bear the slicing service comprises the following steps:
judging whether the second base station and the adjacent cell thereof are connected with the slicing service or not respectively based on the slicing connection records of the second base station and the adjacent cell thereof;
and if the second base station or the adjacent cell of the second base station is connected with the slicing service, judging that the auxiliary card can bear the slicing service.
6. The method as recited in claim 1, further comprising:
acquiring a first slice number of the slice service under an operator to which the main card belongs and a second slice number of the slice service under the operator to which the auxiliary card belongs; the method comprises the steps of,
establishing a mapping relation list of the slicing service under the operators to which the main card and the auxiliary card belong based on the first slicing number and the second slicing number;
the determining whether the master card can carry the requested slicing service includes:
judging whether the main card can bear the requested slicing service or not based on the first slicing number;
the judging whether the sub card of the terminal can bear the slicing service comprises the following steps:
searching a second slice number corresponding to the first slice number based on the mapping relation list; the method comprises the steps of,
and judging whether the auxiliary card of the terminal can bear the slicing service or not based on the second slicing number.
7. The utility model provides a slice management unit of dual card terminal, its characterized in that, under the non-shared co-construction scene of basic station, slice management network element disposes in the terminal side, under the shared co-construction scene of basic station, slice management network element disposes the centralized control unit at shared basic station, dual card terminal's main card and vice card are the user identification card that belongs to different operators, slice management unit includes:
the first judging module is configured to judge whether the main card of the terminal can bear the requested slicing service after the main card initiates a first slicing request to a first base station and a first core network connected with the main card;
the second judging module is used for judging whether the auxiliary card of the terminal can bear the slicing service or not when the first judging module judges that the main card can not bear the slicing service;
the switching notification unit is arranged to initiate a main-sub card switching notification to the terminal when the second judging module judges that the sub card can bear the slicing service, so that the terminal performs main-sub card switching after receiving the main-sub card switching notification; and responding to the terminal to switch the current auxiliary card into the main card, and initiating a second notification to the terminal, wherein the second notification is used for reminding the terminal to initiate a slicing request again in a second public land mobile network of a second core network, so that the terminal can initiate a second slicing request for requesting the slicing service to a second base station and the second core network connected with the auxiliary card of the terminal after receiving the second notification.
8. A terminal device comprising a memory and a processor, the memory having stored therein a computer program, which when executed by the processor performs the slice management method of the two-card terminal according to any one of claims 1 to 6.
9. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when executed by a processor, performs the slice management method of the dual card terminal according to any one of claims 1 to 6.
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