Network access method, device, equipment and storage medium

Abstract

The present disclosure provides a network access method, device, equipment and storage medium, which relate to the field of communication technology. The method includes: obtaining the identification and priority information of each slice; obtaining cell slice information, the cell slice information including the identification of slices supported by each target cell; obtaining the mapping index value of each target cell according to the identification of slices supported by each target cell and the priority information of each slice; obtaining the signal strength index value of each target cell; obtaining the priority information of each target cell according to the mapping index value of each target cell and the cell signal strength index value of each target cell; initiating a random access request to the corresponding target cell according to the priority information of each target cell. The method can realize that the terminal always initiates a random access request to a high-priority cell, and then accesses a high-priority slice in the high-priority cell according to the priority of the slice, so that the terminal can stay on the same high-priority slice supported by itself as much as possible.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a network access method, device, electronic device and readable storage medium. Background Art

[0002] Network slicing is an on-demand networking method that allows operators to separate multiple virtual end-to-end networks on a unified infrastructure. Each network slice is logically isolated from the wireless access network to the bearer network and then to the core network to adapt to a variety of types of applications.

[0003] The diversified development of terminals has brought different slice support capabilities. A terminal may not be able to support all types of slices. For example, the slices supported by some terminals do not need to include slices with high resource requirements such as Ultra-reliable and Low Latency Communications (URLLC) type and Enhanced Mobile Broadband (eMBB) type. In order to ensure service continuity, the terminal will want to stay on the same slice it supports as much as possible, and does not want to switch between different slices frequently.

[0004] As mentioned above, how to ensure that the terminal stays on the same slice it supports as much as possible has become an urgent problem to be solved.

[0005] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute the prior art that is already known to one of ordinary skill in the art. Summary of the invention

[0006] The purpose of the present disclosure is to provide a network access method, device, electronic device and readable storage medium, which can enable the terminal to remain on the same slice supported by itself as much as possible.

[0007] Other features and advantages of the present disclosure will become apparent from the following detailed description, or may be learned in part by the practice of the present disclosure.

[0008] According to one aspect of the present disclosure, a network access method is provided, including: obtaining an identifier and priority information of each slice; obtaining cell slice information, the cell slice information including an identifier of a slice supported by each target cell; obtaining a mapping index value of each target cell according to the identifier of the slice supported by each target cell and the priority information of each slice; obtaining a signal strength index value of each target cell; obtaining the priority information of each target cell according to the mapping index value of each target cell and the cell signal strength index value of each target cell; and initiating a random access request to the corresponding target cell according to the priority information of each target cell.

[0009] According to one embodiment of the present disclosure, the priority information of each target cell is obtained according to the mapping index value of each target cell and the signal strength index value of each target cell, including: weighted addition of the mapping index value of each target cell and the corresponding signal strength index value to obtain the priority information of each target cell.

[0010] According to an embodiment of the present disclosure, a mapping index value of each target cell is obtained according to the identifiers of the slices supported by each target cell and the priority information of each slice, including: according to the identifiers of the slices supported by each target cell, obtaining the priority information of the slices supported by each target cell from the identifiers and the priority information of each slice; according to the identifiers of the slices supported by each target cell, obtaining the number of slices supported by each target cell; and determining the mapping index value of each target cell according to the number of slices supported by each target cell and the priority information of the slices supported by each target cell, wherein the mapping index value of each target cell is positively correlated with the number of slices supported by the target cell.

[0011] According to one embodiment of the present disclosure, the mapping index value of each target cell is positively correlated with the priority of the slices supported by the target cell.

[0012] According to an embodiment of the present disclosure, obtaining a signal strength index value of each target cell includes: measuring the signal strength of each target cell to obtain a measurement result of each target cell, wherein the measurement result is at least one of a signal to interference plus noise ratio, a reference signal received power, and a reference signal received quality; and obtaining a signal strength index value of each target cell according to the measurement result of each target cell, wherein the signal strength index value of each target cell is positively correlated with its measurement result.

[0013] According to an embodiment of the present disclosure, obtaining the identification and priority information of each slice includes: receiving a user routing selection policy URSP rule, wherein the URSP rule includes the identification of each slice and the rule priority information; parsing the URSP rule to obtain the identification of each slice and the rule priority information; and matching the identification of each slice with the rule priority information to obtain the priority information of each slice.

[0014] According to one embodiment of the present disclosure, the cell slice information also includes the identifier of each target cell; the method also includes: obtaining a mapping table between the identifier of each target cell and its mapping index value; obtaining the priority information of each target cell according to the mapping index value of each target cell and the cell signal strength index value of each target cell, including: based on the mapping table between the identifier of each target cell and its mapping index value, obtaining the priority information of each target cell according to the mapping index value of each target cell and the cell signal strength index value of each target cell.

[0015] According to another aspect of the present disclosure, a network access method is provided, including: a core network sends an identifier and priority information of each slice to a terminal; in response to a measurement request of the terminal, sends cell slice information to the terminal, the cell slice information including an identifier of a slice supported by each target cell, so that the terminal obtains a mapping index value of each target cell according to the identifier of the slice supported by each target cell and the priority information of each slice; in response to the measurement request of the terminal, sends a signal strength of each target cell to the terminal, so that the terminal obtains a signal strength index value of each target cell, and obtains the priority information of each target cell according to the mapping index value of each target cell and the cell signal strength index value of each target cell; and receives a random access request initiated by the terminal to the corresponding target cell according to the priority information of each target cell.

[0016] According to another aspect of the present disclosure, a network access device is provided, including: a first acquisition module, used to obtain the identification and priority information of each slice; a second acquisition module, used to obtain cell slice information, the cell slice information including the identification of the slices supported by each target cell; a first acquisition module, used to obtain the mapping index value of each target cell according to the identification of the slices supported by each target cell and the priority information of each slice; a second acquisition module, used to obtain the signal strength index value of each target cell; a third acquisition module, used to obtain the priority information of each target cell according to the mapping index value of each target cell and the cell signal strength index value of each target cell; an access request module, used to initiate a random access request to the corresponding target cell according to the priority information of each target cell.

[0017] According to an embodiment of the present disclosure, the third obtaining module is further used to perform weighted addition of the mapping index value of each target cell and the corresponding signal strength index value to obtain the priority information of each target cell.

[0018] According to an embodiment of the present disclosure, the first acquisition module is also used to: obtain the priority information of the slices supported by each target cell from the identifiers of the slices supported by each target cell and the priority information; obtain the number of slices supported by each target cell according to the identifiers of the slices supported by each target cell; determine the mapping index value of each target cell according to the number of slices supported by each target cell and the priority information of the slices supported by each target cell, wherein the mapping index value of each target cell is positively correlated with the number of slices supported by the target cell.

[0019] According to one embodiment of the present disclosure, the mapping index value of each target cell is positively correlated with the priority of the slices supported by the target cell.

[0020] According to one embodiment of the present disclosure, the device also includes: a measurement module, used to measure the signal strength of each target cell and obtain a measurement result of each target cell, wherein the measurement result is at least one of a signal to interference plus noise ratio, a reference signal received power, and a reference signal received quality; the second acquisition module is also used to obtain a signal strength index value of each target cell based on the measurement result of each target cell, wherein the signal strength index value of each target cell is positively correlated with its measurement result.

[0021] According to one embodiment of the present disclosure, the device also includes: a receiving module, used to receive a user routing selection policy URSP rule, the URSP rule including an identifier of each slice and rule priority information; a rule parsing module, used to parse the URSP rule to obtain the identifier of each slice and the rule priority information; the first acquisition module is also used to correspond the identifier of the slice with the rule priority information to obtain the priority information of each slice.

[0022] According to one embodiment of the present disclosure, the cell slice information also includes the identifier of each target cell; the device also includes: a mapping module, used to obtain a mapping table of the identifier of each target cell and its mapping index value; the third acquisition module is also used to: based on the mapping table of the identifier of each target cell and its mapping index value, obtain the priority information of each target cell according to the mapping index value of each target cell and the cell signal strength index value of each target cell.

[0023] According to another aspect of the present disclosure, an electronic device is provided, comprising: a memory, a processor, and executable instructions stored in the memory and executable in the processor, wherein the processor implements any of the above methods when executing the executable instructions.

[0024] According to another aspect of the present disclosure, a computer-readable storage medium is provided, on which computer-executable instructions are stored, and when the executable instructions are executed by a processor, any of the above methods is implemented.

[0025] The network access method provided by the embodiments of the present disclosure first obtains the identification and priority information of each slice, and obtains the cell slice information including the identification of the slices supported by each target cell, then obtains the mapping index value of each target cell according to the identification of the slices supported by each target cell and the priority information of each slice, and then obtains the signal strength index value of each target cell, and then obtains the priority information of each target cell according to the mapping index value of each target cell and the cell signal strength index value of each target cell, so as to initiate a random access request to the corresponding target cell according to the priority information of each target cell, so that the terminal always initiates a random access request to a high-priority cell, and then accesses the high-priority slice in the high-priority cell according to the priority of the slice, so that the terminal can stay on the same high-priority slice supported by itself as much as possible.

[0026] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0028] Figure 1 A schematic diagram showing a system architecture in an embodiment of the present disclosure.

[0029] Figure 2 A flow chart of a network access method in an embodiment of the present disclosure is shown.

[0030] Figure 3 Shows Figure 2 FIG. 5 is a schematic diagram of the processing process of step S202 in one embodiment.

[0031] Figure 4 Shows Figure 2 FIG. 4 is a schematic diagram of the processing process of step S204 in one embodiment.

[0032] Figure 5 Shows Figure 2 FIG. 5 is a schematic diagram of the processing process of step S206 in one embodiment.

[0033] Figure 6 The present invention is a flowchart of another network access method according to an exemplary embodiment.

[0034] Figure 7 is based on Figures 2 to 6An information interaction diagram showing a terminal access process according to priority information.

[0035] Figure 8 A block diagram of a network access device in an embodiment of the present disclosure is shown.

[0036] Fig. 9 A block diagram of another network access device in an embodiment of the present disclosure is shown.

[0037] Fig.10 A schematic structural diagram of an electronic device in an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0038] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The accompanying drawings are only schematic illustrations of the disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted.

[0039] In addition, the described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced while omitting one or more of the specific details, or other methods, devices, steps, etc. may be adopted. In other cases, well-known structures, methods, devices, implementations or operations are not shown or described in detail to avoid obscuring various aspects of the present disclosure.

[0040] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The symbol " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0041] In this disclosure, unless otherwise clearly specified and limited, terms such as "connection" should be understood in a broad sense, for example, it can be an electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0042] Policy Control Function (PCF) is one of the network functions of the fifth generation (5G) core network. UE Route Selection Policy (URSP) is a policy activated by PCF and sent to the User Equipment (UE) via the Access and Mobility Management Function (AMF). The slice information contained in it can provide different terminals with a method for managing network slices. Based on URSP, the terminal can map the traffic to the corresponding Protocol Data Unit (PDU) session based on the characteristics of the traffic, which can be mapped to the corresponding slice that meets the traffic characteristics. In order to identify end-to-end network slices, the terminal, base station, and core network will all perceive the network slices.

[0043] Each network slice is uniquely identified by a single network slice selection assistance information (S-NSSAI). An S-NSSAI consists of a slice / service type (Slice / Serive Type, SST) and a slice differentiator (Slice Differentiator, SD). SST refers to network slice types that are different in terms of functions, services, etc. SD is optional information used to supplement the slice / service type to distinguish multiple network slices of the same slice / service type. A collection of one or more S-NSSAIs is called NSSAI.

[0044] The Physical Cell ID (PCI) can be used to distinguish the wireless signals of different cells, ensuring that all cells within the coverage area of ​​the relevant cell have a unique physical cell ID. The base station will configure relevant slices for each cell according to its own situation. There can be multiple different slices in different frequencies; in different regions, the same frequency can support multiple different slices. Therefore, different cells under the same base station may be configured with the same slice or different slices.

[0045] As mentioned above, in order to ensure service continuity, the terminal will want to stay on the same slice it supports as much as possible. The priorities of the slices it supports can be clearly divided, and then the terminal will stay on the high-priority slice it supports as much as possible to ensure service continuity.

[0046] However, there is no solution in the related art on how to ensure that the terminal stays in a cell with a high priority as much as possible during the cell selection / reselection process, nor is there any corresponding provision in the relevant standards. This may lead to different solutions for different terminals, thus causing difficulties in resource scheduling of the operator's network.

[0047] Therefore, the present disclosure provides a network access method, which obtains a mapping index value of the target cell based on the obtained slice identifier and its priority information and the slice identifier supported by the target cell in the cell slice information, and then obtains the priority information of each target cell by comprehensively obtaining the signal strength index value of each target cell. The terminal initiates a random access request according to the priority of the target cell, which can ensure that the terminal stays in a cell with a high priority during the cell selection / reselection process, and further ensures that the terminal accesses a high-priority slice in the high-priority cell, so that the terminal can stay on the same high-priority slice supported by itself as much as possible.

[0048] Figure 1 An exemplary system 10 to which the network access method or apparatus of the present disclosure may be applied is shown.

[0049] like Figure 1 As shown, the system architecture 10 may include a core network 102, a base station 104, and a terminal device 106. The terminal device 102 may be any mobile terminal having a display screen and supporting input and output, including but not limited to a smart phone, a tablet computer, a laptop computer, a desktop computer, a wearable device, a virtual reality device, a smart home, etc., or may be a wireless router.

[0050] The base station 104 is an interface device for the terminal device 106 to access the core network 102, and the terminal device 106 and the base station 104 are connected via a wireless communication link. For example, the core network 102 sends the identification and priority information of each slice to the terminal device 106 through the base station 104. For another example, the base station 104 receives a measurement request from the terminal device 106 through the wireless communication link, and in response to the request, sends the cell slice information including the identification of the slices supported by each target cell to the terminal device 106 through the wireless communication link.

[0051] It should be understood that Figure 1 The number of terminal devices in the figure is only for illustration. Any number of terminal devices may be provided according to implementation requirements.

[0052] Figure 2 FIG. 1 is a flow chart of a network access method according to an exemplary embodiment. Figure 2 The method shown can be applied to, for example, a terminal device (hereinafter referred to as “terminal”) 102 of the system 10 .

[0053] refer to Figure 2, the method 20 provided in the embodiment of the present disclosure may include the following steps.

[0054] In step S202, the identification and priority information of each slice is obtained.

[0055] In some embodiments, the identifier of each slice can be obtained from the URSP rule issued by the core network, and the implicit slice priority of each slice can be obtained by using the priority of the URSP rule itself. Figure 3 .

[0056] In step S204, cell slice information is obtained, where the cell slice information includes identifiers of slices supported by each target cell.

[0057] In some embodiments, the base station may broadcast cell slice information including identifiers of slices supported by each target cell.

[0058] In some other embodiments, the terminal may send a measurement request to the base station, and the base station may unicast cell slice information including identifiers of slices supported by each target cell to the corresponding terminal that has received its measurement request.

[0059] In some embodiments, the cell slice information may also include an identifier of each target cell, such as a PCI.

[0060] In step S206, the mapping index value of each target cell is obtained according to the identifier of the slices supported by each target cell and the priority information of each slice.

[0061] In some embodiments, the identification of each slice supported by each target cell can be matched with the slice priority according to the identification of each slice, the priority of the slice supported by each target cell can be obtained, and then the mapping index value of each target cell can be obtained accordingly. Figure 4 .

[0062] In some embodiments, after obtaining the mapping index value of each target cell, the identifier of each target cell and the mapping index value of each target cell can be corresponded to form a mapping table for data storage, which is convenient for recording and querying. For example, after obtaining the mapping index values ​​of target cells 1, 2, 3, 4 and 5 respectively {X1, X2, X3, X4, X5}, the mapping table is obtained as shown in Table 1 below.

[0063] Table 1

[0064]

[0065] In step S208, the signal strength index value of each target cell is obtained.

[0066] In some embodiments, the terminal may send a measurement request to the base station, and the base station responds to the measurement request by sending the signal strength measurement results of each target cell to the terminal, and then the terminal assigns values ​​according to the signal strength measurement results to obtain the signal strength index value of each target cell. Figure 5 .

[0067] In step S210, priority information of each target cell is obtained according to the mapping index value of each target cell and the cell signal strength index value of each target cell.

[0068] In some embodiments, based on a mapping table of identifiers of target cells and their mapping index values, priority information of each target cell is obtained according to the mapping index value of each target cell and the cell signal strength index value of each target cell.

[0069] In some embodiments, the mapping index value of each target cell and the corresponding signal strength index value can be weighted and added to obtain the priority information of each target cell. For example, the mapping index value of each target cell is recorded as X, X∈{X1, X2, X3, X4, X5}, and the signal strength index value of each target cell is recorded as Y, Y∈{Y1, Y2, Y3, Y4, Y5}, then the priority of each target cell = a*X+b*Y, where a and b values ​​can be freely configured by the base station according to its own scheduling situation. For example, when the base station has fewer slices, the mapping index value weight can be configured to be increased, that is, a>b; if the base station load is large, the signal strength index value weight can be set to be increased, that is, b>a, and so on.

[0070] In other embodiments, the mapping index value of each target cell and the corresponding signal strength index value may be used as exponents of two bases, and the exponential powers may be added to obtain the priority of each target cell, for example, the natural base e may be used as the base, or 2 may be used as the base, etc.

[0071] In step S212, a random access request is initiated to the corresponding target cell according to the priority information of each target cell.

[0072] In some embodiments, the terminal may initiate a random access request to the target cell with the highest priority.

[0073] According to the network access method provided by the embodiment of the present disclosure, the mapping index value of the target cell is obtained based on the information of the obtained slice identifier and its priority and the slice identifier supported by the target cell in the cell slice information, and then the priority information of each target cell is obtained by comprehensively combining the obtained signal strength index values ​​of each target cell. The terminal initiates a random access request according to the priority of the target cell, which can ensure that the terminal stays in a cell with a high priority during the cell selection / reselection process, and further ensures that the terminal accesses a high-priority slice in the high-priority cell, so that the terminal can stay on the same high-priority slice supported by itself as much as possible, thereby enhancing the operator's support for network-connected terminals and improving user experience.

[0074] Figure 3 Shows Figure 2 The processing diagram of step S202 in one embodiment is shown in FIG. Figure 3 As shown, in the embodiment of the present disclosure, the above step S202 may further include the following steps.

[0075] Step S302: Receive URSP rules, where the URSP rules include identifiers of each slice and rule priority information.

[0076] In some embodiments, the core network may send the URSP rules to the terminal through the base station. The URSP rules may include network slice information (such as S-NSSAI, used to identify different slices) and other PDU session parameters required by different applications or services, and may also include the priority of the URSP rule itself.

[0077] In some embodiments, the URSP rules may also include the type of each slice, such as URLLC type, eMBB type, etc.

[0078] Step S304: parse the URSP rules to obtain the identifier and rule priority information of each slice.

[0079] In some embodiments, the URSP rule may have a certain data structure, and may be parsed according to the data structure to obtain the identifier of each slice and the rule priority.

[0080] Step S306, match the identifier of each slice with the rule priority information to obtain the priority information of each slice.

[0081] In some embodiments, the URSP rule priority may be used as the priority of the slice identified therein, that is, the slice priority is the implicit slice priority brought by the URSP rule priority. For example, the priority of URSP rule 1 containing slice 1 information is 1, and the priority of URSP rule 2 containing slice 2 information is 2, then the priority of slice 1 is 1, and the priority of slice 2 is 2.

[0082] According to the method provided by the embodiments of the present disclosure, by obtaining the priority of the slices identified in the URSP rule through the URSP rule priority, the priority of the slices themselves can be determined according to the service priority, so as to ensure the continuity of the service by maintaining access to high-priority slices as much as possible.

[0083] Figure 4 shows Figure 2 a schematic diagram of the processing procedure of step S206 shown in [a certain context] in an embodiment. As Figure 4 shown, in the embodiments of the present disclosure, the above step S206 may further include the following steps.

[0084] Step S402: Obtain the priority information of the slices supported by each target cell from the identification and priority information of each slice according to the identification of the slices supported by each target cell.

[0085] Step S404: Obtain the number of slices supported by each target cell according to the identification of the slices supported by each target cell.

[0086] Step S406: Determine the mapping metric value of each target cell according to the number of slices supported by each target cell and the priority information of the slices supported by each target cell, where the mapping metric value of each target cell is positively correlated with the number of slices supported by the target cell.

[0087] In some embodiments, the mapping metric value of each target cell is positively correlated with the priority of the slices supported by the target cell.

[0088] For example, the more slices a target cell supports, the larger the mapping metric value of the target cell; the more high-priority slices a target cell supports, the larger the mapping metric value. After obtaining the magnitude relationship of the mapping metric values of each target cell, the mapping metric values of each target cell can be assigned according to a plurality of preset values.

[0089] Taking target cell 1 with PCI being 1 and target cell 2 with PCI being 2 as an example, target cell 1 is 5G NR cell 1, and the slices it supports are slice 1 and slice 2; target cell 2 is 5G NR cell2, and the slices it supports are slice 1, slice 2, and slice 3. According to the slice priority parsed by the URSP rule, slice 1 > slice 2 > slice 3, then the mapping metric value X1 of target cell 1 can be obtained to be less than the mapping metric value X2 of target cell 2, that is, X1 < X2. If a plurality of preset mapping values are {15, 12, 10, 8, 6, 4, 3, 2......}, X1 can be assigned 6 and X2 can be assigned 4, or X1 can be assigned 10 and X2 can be assigned 8, etc.

[0090] According to the method provided by the embodiment of the present disclosure, a mapping index value is assigned to the target cell based on the number of slices supported by the target cell and the priority of the slices. When determining the priority of the target cell, the number of slices supported by the target cell and the priority of the slices are taken into consideration, thereby enabling the terminal to stay on the high-priority slices it supports as much as possible.

[0091] Figure 5 Shows Figure 2 The processing process of step S208 in one embodiment is shown in FIG. Figure 5 As shown, in the embodiment of the present disclosure, the above step S208 may further include the following steps.

[0092] Step S502, measuring the signal strength of each target cell to obtain a measurement result of each target cell, where the measurement result is at least one of a signal to interference plus noise ratio (SINR), a reference signal receiving power (RSRP), and a reference signal receiving quality (RSRQ).

[0093] Step S504: obtaining a signal strength index value of each target cell according to the measurement result of each target cell, wherein the signal strength index value of each target cell is positively correlated with its measurement result.

[0094] In some embodiments, the larger the measurement result of the target cell signal strength, the larger the signal strength index value of the target cell. After obtaining the magnitude relationship of the signal strength index values ​​of each target cell, the signal strength index value of each target cell can be assigned according to multiple preset values.

[0095] Taking the target cell 1 and the target cell 2 with PCI of 1 and 2 respectively as an example, the RSRP Y1 of the target cell 1 is measured to be greater than the RSRP Y2 of the target cell 2, that is, Y1>Y2. If the preset multiple signal strength index values ​​are {20, 17, 14, 11, 9...}, Y1 can be assigned to 11 and Y2 to 9, or Y1 can be assigned to 14 and Y2 to 11, and so on.

[0096] According to the method provided by the embodiment of the present disclosure, the signal strength index value of each target cell is determined according to a positive correlation with the signal strength measurement result, so that the signal strength of the target cell is taken into consideration when prioritizing the target cell, thereby achieving the goal of allowing the terminal to remain on the high-priority slice it supports as much as possible while ensuring the signal transmission quality.

[0097] Figure 6 FIG. 1 is a flow chart of another network access method according to an exemplary embodiment. Figure 6 The method shown may be applied to the core network 102 and the base station 104 of the system 10 , for example.

[0098] refer to Figure 6 , the method 60 provided in the embodiment of the present disclosure may include the following steps.

[0099] In step S602, the core network sends the identification and priority information of each slice to the terminal.

[0100] In step S604, the base station responds to the measurement request of the terminal and sends cell slice information to the terminal. The cell slice information includes the identifiers of the slices supported by each target cell, so that the terminal obtains the mapping index value of each target cell based on the identifiers of the slices supported by each target cell and the priority information of each slice.

[0101] In step S606, the base station responds to the measurement request of the terminal and sends the signal strength of each target cell to the terminal, so that the terminal obtains the signal strength index value of each target cell, and obtains the priority information of each target cell according to the mapping index value of each target cell and the cell signal strength index value of each target cell.

[0102] In step S608, the base station receives a random access request initiated by the terminal to the corresponding target cell according to the priority information of each target cell.

[0103] Figure 6 The steps performed by the core network and the base station correspond to the steps performed by the terminal. For specific implementation methods, please refer to Figures 2 to 5 .

[0104] Figure 7 is based on Figures 2 to 6 The information interaction diagram of a terminal access process according to priority information is shown in FIG. Figure 7 As shown, the terminal access process according to the priority information may include the following steps S702 to S716.

[0105] Step S702: The terminal obtains URSP rules and parses information such as slice type, slice priority, and slice identifier.

[0106] Step S704, the terminal initiates measurement;

[0107] Step S706, the terminal obtains the cell slice information (such as PCI, slice identifier, etc.) issued by the network;

[0108] Step S708, mapping the PCI and the slice priority based on the slice identifier to form a mapping table.

[0109] Step S710: Obtain a target cell signal strength index value according to a target cell signal strength measurement result.

[0110] Step S712: Calculate the priority of the target cell according to the target cell signal strength index value and the mapping table.

[0111] Step S714: initiate random access / handover to the target cell with the highest priority.

[0112] Step S716: Access is completed.

[0113] The following is based on Figure 7 Some embodiments of the present invention.

[0114] Embodiment 1:

[0115] Target cell 1 is 5G NR cell 1, and supported slices are slice 1, slice 2, and slice 3; target cell 2 is 5G NR cell 2, and supported slices are slice 1, slice 2, and slice 3; terminal 1 is a mobile terminal.

[0116] 1) Terminal 1 obtains the URSP rule, parses the slice type, priority and slice identifier: the slices in URSP rule 1, URSP rule 2 and URSP rule 3 of service 1 are slice 1, slice 2 and slice 3 respectively, and the priorities of URSP rule 1, URSP rule 2 and URSP rule 3 are 1, 2 and 3 respectively, so the priorities of slice 1, slice 2 and slice 3 are 1, 2 and 3 respectively;

[0117] 2) Terminal 1 initiates measurement;

[0118] 3) Terminal 1 obtains the cell slice information sent by the network: target cell 1 is 5G NR cell 1, and the supported slices are slice 1 and slice 2; target cell 2 is 5G NR cell 2, and the supported slices are slice 1, slice 2, and slice 3;

[0119] 4) Terminal 1 maps PCI and slice priority based on slice identifier to form a mapping table such as:

[0120] Community 1 Community 2 Priority Slice 1 √ √ 1 Slice 2 √ √ 2 Slice 3 √ √ 3 Mapping indicator values 15 15

[0121] 5) Terminal 1 obtains the target cell strength measurement result. The signal strength of target cell 1 is higher than that of target cell 2. The signal strength index value of target cell 1 is 20, and the signal strength index value of target cell 2 is 17.

[0122] 6) Terminal 1 calculates the priority according to a*X+b*Y, the target cell signal strength index value and the mapping table:

[0123] Community 1 Community 2 Mapping indicator values 15 15 Signal strength index value 20 17 Target cell priority 18 16.2

[0124] 7) Terminal 1 initiates random access / handover to the highest priority target cell 1;

[0125] 8) Terminal 1 accesses target cell 1.

[0126] Embodiment 2:

[0127] Target cell 1 is 5G NR cell 1, and supports slices 1 and 2. Target cell 2 is 5G NR cell 2, and supports slices 2 and 3. Terminal 2 is a mobile terminal.

[0128] 1) Terminal 2 obtains the URSP rule, parses the slice type, priority and slice identifier: the slices in URSP rule 1, URSP rule 2 and URSP rule 3 of service 1 are slice 1, slice 2 and slice 3 respectively, and the priorities of URSP rule 1, URSP rule 2 and URSP rule 3 are 1, 2 and 3 respectively, so the priorities of slice 1, slice 2 and slice 3 are 1, 2 and 3 respectively;

[0129] 2) Terminal 2 initiates measurement;

[0130] 3) Terminal 2 obtains the cell slice information sent by the network: target cell 1 is 5G NR cell 1, and the supported slices are slice 1 and slice 2; target cell 2 is 5G NR cell 2, and the supported slices are slice 2 and slice 3;

[0131] 4) Terminal 2 maps the PCI and the slice priority based on the slice identifier to form a mapping table such as:

[0132] Community 1 Community 2 Priority Slice 1 √ - 1 Slice 2 √ √ 2 Slice 3 - √ 3 Mapping indicator values 15 12

[0133] 5) Terminal 2 obtains the target cell strength measurement result. The signal strength of target cell 1 is higher than that of target cell 2. The signal strength index value of target cell 1 is 20, and the signal strength index value of target cell 2 is 17.

[0134] 6) Terminal 2 calculates the priority according to a*X+b*Y (taking a=0.4 and b=0.6 as an example) based on the target cell signal strength index value and the mapping table:

[0135] Community 1 Community 2 Mapping indicator values 15 12 Signal strength index value 20 17 Target cell priority 18 15

[0136] 7) Terminal 2 initiates random access / handover to the highest priority target cell 1;

[0137] 8) Access target cell 1.

[0138] Embodiment 3:

[0139] Target cell 1 is 5G NR cell 1, and supports slices 2 and 3. Target cell 2 is 5G NR cell 2, and supports slices 1, 2, and 3. Terminal 3 is a mobile terminal.

[0140] 1) Terminal 3 obtains the URSP rule, parses the slice type, priority and slice identifier: the slices in URSP rule 1, URSP rule 2 and URSP rule 3 of service 1 are slice 1, slice 2 and slice 3 respectively, and the priorities of URSP rule 1, URSP rule 2 and URSP rule 3 are 1, 2 and 3 respectively, so the priorities of slice 1, slice 2 and slice 3 are 1, 2 and 3 respectively;

[0141] 2) Terminal 3 initiates measurement;

[0142] 3) Terminal 3 obtains the cell slice information sent by the network: target cell 1 is 5G NR cell 1, and the supported slices are slice 2 and slice 3; target cell 2 is 5G NR cell 2, and the supported slices are slice 1, slice 2, and slice 3;

[0143] 4) Terminal 3 maps PCI and slice priority based on slice identifier to form a mapping table such as:

[0144] Community 1 Community 2 Priority Slice 1 - √ 1 Slice 2 √ √ 2 Slice 3 √ √ 3 Mapping indicator values 10 15

[0145] 5) Terminal 3 obtains the target cell strength measurement result. The signal strength of target cell 1 is higher than that of target cell 2. The signal strength index value of target cell 1 is 20, and the signal strength index value of target cell 2 is 17.

[0146] 6) Terminal 3 calculates the priority according to a*X+b*Y (taking a=0.4 and b=0.6 as an example) based on the target cell signal strength index value and the mapping table:

[0147] Community 1 Community 2 Mapping indicator values 10 15 Signal strength index value 20 17 Target cell priority 16 16.2

[0148] 7) Terminal 3 initiates random access / handover to the highest priority target cell 2;

[0149] 8) Access target cell 2.

[0150] According to the method provided by the embodiment of the present disclosure, based on the URSP rules obtained by the terminal, slice information such as slice type, slice priority, slice identifier, etc. is parsed and matched with the slice information supported by the target cell reported by the network. The terminal can form a mapping table of the slices configured by the base station and the URSP rule priorities issued by the core network.

[0151] The terminal can calculate the target cell priority by combining the measured target cell signal strength and slice priority, which can be used as the basis for cell attachment when the terminal randomly accesses, thereby improving the fit between the terminal and the required slice and ensuring that the terminal data is transmitted on the best slice.

[0152] There is no restriction on the expansion of slices in the future. You only need to synchronize the slice information to the terminal, and the terminal can calculate the priority. At the same time, for different terminals that support different slices, the priority coefficients a and b are controllable, which improves the flexibility of slice selection and enhances the user experience.

[0153] Figure 8 FIG. 1 is a block diagram of a network access device according to an exemplary embodiment. Figure 8 The apparatus shown can be applied to, for example, a terminal device (hereinafter referred to as “terminal”) 102 of the system 10 .

[0154] refer to Figure 8 The device 80 provided in the embodiment of the present disclosure may include a first acquisition module 802, a second acquisition module 804, a first acquisition module 806, a second acquisition module 808, a third acquisition module 810 and an access request module 812.

[0155] The first acquisition module 802 may be used to acquire the identification and priority information of each slice.

[0156] The second acquisition module 804 may be used to acquire cell slice information, where the cell slice information includes identifiers of slices supported by each target cell.

[0157] The first obtaining module 806 may be used to obtain a mapping index value of each target cell according to the identifier of the slices supported by each target cell and the priority information of each slice.

[0158] The second obtaining module 808 may be used to obtain the signal strength index value of each target cell.

[0159] The third obtaining module 810 may be used to obtain the priority information of each target cell according to the mapping index value of each target cell and the cell signal strength index value of each target cell.

[0160] The access request module 812 may be configured to initiate a random access request to a corresponding target cell according to priority information of each target cell.

[0161] Fig. 9 FIG. 1 is a block diagram of another network access device according to an exemplary embodiment. Fig. 9 The apparatus shown can be applied to, for example, a terminal device (hereinafter referred to as “terminal”) 102 of the system 10 .

[0162] refer to Fig. 9The device 90 provided in the embodiment of the present disclosure may include a receiving module 901, a first acquisition module 902, a measurement module 903, a second acquisition module 904, a rule parsing module 905, a first acquisition module 906, a mapping module 907, a second acquisition module 908, a third acquisition module 910 and an access request module 912.

[0163] The receiving module 901 may be used to receive a user routing selection policy URSP rule, where the URSP rule includes an identifier of each slice and rule priority information.

[0164] The first acquisition module 902 may be used to acquire the identification and priority information of each slice.

[0165] The first acquisition module 902 may also be used to match the slice identifier with the rule priority information to obtain the priority information of each slice.

[0166] The measurement module 903 may be used to measure the signal strength of each target cell and obtain a measurement result of each target cell, where the measurement result is at least one of a signal to interference plus noise ratio, a reference signal received power, and a reference signal received quality.

[0167] The second acquisition module 904 may be used to acquire cell slice information, which may include identifiers of slices supported by each target cell.

[0168] The cell slice information may also include the identifier of each target cell.

[0169] The rule parsing module 905 may be used to parse the URSP rules and obtain the identifier of each slice and the rule priority information.

[0170] The first obtaining module 906 may be used to obtain a mapping index value of each target cell according to the identifier of the slices supported by each target cell and the priority information of each slice.

[0171] The first acquisition module 906 can also be used to obtain the priority information of the slices supported by each target cell from the identification and priority information of each slice according to the identification of the slices supported by each target cell; obtain the number of slices supported by each target cell according to the identification of the slices supported by each target cell; determine the mapping index value of each target cell according to the number of slices supported by each target cell and the priority information of the slices supported by each target cell, wherein the mapping index value of each target cell is positively correlated with the number of slices supported by the target cell.

[0172] The mapping index value of each target cell is positively correlated with the priority of the slices supported by the target cell.

[0173] The mapping module 907 may be used to obtain a mapping table of the identifiers of each target cell and its mapping index value.

[0174] The second obtaining module 908 may be used to obtain the signal strength index value of each target cell.

[0175] The second obtaining module 908 may also be used to obtain a signal strength index value of each target cell according to the measurement result of each target cell, wherein the signal strength index value of each target cell is positively correlated with its measurement result.

[0176] The third obtaining module 910 may be used to obtain the priority information of each target cell according to the mapping index value of each target cell and the cell signal strength index value of each target cell.

[0177] The third obtaining module 910 may also be used to perform weighted addition of the mapping index value of each target cell and the corresponding signal strength index value to obtain the priority information of each target cell.

[0178] The third obtaining module 910 may also be used to obtain the priority information of each target cell according to the mapping index value of each target cell and the cell signal strength index value of each target cell based on a mapping table of the identifier of each target cell and its mapping index value.

[0179] The access request module 912 may be configured to initiate a random access request to a corresponding target cell according to priority information of each target cell.

[0180] The specific implementation of each module in the device provided by the embodiment of the present disclosure can refer to the content of the above method, which will not be repeated here.

[0181] Fig.10 The following is a schematic diagram showing the structure of an electronic device in an embodiment of the present disclosure. It should be noted that: Fig.10 The device shown is only an example of a computer system, which should not bring any limitation to the functions and scope of use of the embodiments of the present disclosure.

[0182] like Fig.10 As shown, the device 1000 includes a central processing unit (CPU) 1001, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage part 1008 into a random access memory (RAM) 1003. In the RAM 1003, various programs and data required for the operation of the device 1000 are also stored. The CPU 1001, the ROM 1002, and the RAM 1003 are connected to each other via a bus 1004. An input / output (I / O) interface 1005 is also connected to the bus 1004.

[0183] The following components are connected to the I / O interface 1005: an input section 1006 including a keyboard, a mouse, etc.; an output section 1007 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 1008 including a hard disk, etc.; and a communication section 1009 including a network interface card such as a LAN card, a modem, etc. The communication section 1009 performs communication processing via a network such as the Internet. A drive 1010 is also connected to the I / O interface 1005 as needed. A removable medium 1011, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 1010 as needed, so that a computer program read therefrom is installed into the storage section 1008 as needed.

[0184] In particular, according to an embodiment of the present disclosure, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication part 1009, and / or installed from a removable medium 1011. When the computer program is executed by a central processing unit (CPU) 1001, the above-mentioned functions defined in the system of the present disclosure are executed.

[0185] It should be noted that the computer-readable medium shown in the present disclosure may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present disclosure, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, device or device. In the present disclosure, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, in which a computer-readable program code is carried. This propagated data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which may send, propagate or transmit a program for use by or in conjunction with an instruction execution system, apparatus or device. The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0186] The flow charts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each box in the flow chart or block diagram can represent a module, a program segment, or a part of a code, and the above-mentioned module, program segment, or a part of a code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flow chart, and the combination of the boxes in the block diagram or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0187] The modules involved in the embodiments described in the present disclosure may be implemented by software or by hardware. The modules described may also be set in a processor, for example, may be described as: a processor includes a first acquisition module, a second acquisition module, a first acquisition module, a second acquisition module, a third acquisition module and an access request module. The names of these modules do not constitute a limitation on the modules themselves in some cases. For example, the first acquisition module may also be described as a "module for obtaining the identification and priority information of each slice parsed from the URSP rule".

[0188] As another aspect, the present disclosure further provides a computer-readable medium, which may be included in the device described in the above embodiment; or may exist independently without being assembled into the device. The above computer-readable medium carries one or more programs, and when the above one or more programs are executed by a device, the device includes:

[0189] Obtain the identification and priority information of each slice; obtain cell slice information, the cell slice information including the identification of slices supported by each target cell; obtain the mapping index value of each target cell according to the identification of slices supported by each target cell and the priority information of each slice; obtain the signal strength index value of each target cell; obtain the priority information of each target cell according to the mapping index value of each target cell and the cell signal strength index value of each target cell; initiate a random access request to the corresponding target cell according to the priority information of each target cell.

[0190] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structures, configurations or implementations described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent configurations included in the spirit and scope of the appended claims.

Claims

1. A network access method, characterized in that: include: Get the identification and priority information of each slice; Obtain cell slice information, where the cell slice information includes identifiers of slices supported by each target cell; Obtaining a mapping index value of each target cell according to an identifier of the slices supported by each target cell and the priority information of each slice, wherein the mapping index value of each target cell is positively correlated with the number of slices supported by the target cell and is positively correlated with the priority of the slices supported by the target cell; Obtaining a signal strength index value of each target cell, wherein the signal strength index value of each target cell is positively correlated with its signal strength measurement result; Obtaining priority information of each target cell according to the mapping index value of each target cell and the cell signal strength index value of each target cell, wherein the priority size corresponding to the priority information of each target cell is positively correlated with the mapping index value of the target cell and is positively correlated with the cell signal strength index value of the target cell; Initiate a random access request to the corresponding target cell according to the priority information of each target cell; Get the identification and priority information of each slice, including: Receiving a user routing selection policy URSP rule, wherein the URSP rule includes an identifier of each slice and rule priority information; Parsing the URSP rule to obtain the identifier of each slice and the rule priority information; The identifiers of the slices are matched with the rule priority information to obtain the priority information of the slices.

2. The method according to claim 1, characterized in that Obtaining priority information of each target cell according to the mapping index value of each target cell and the signal strength index value of each target cell, including: The mapping index value of each target cell and the corresponding signal strength index value are weightedly added to obtain the priority information of each target cell.

3. The method according to claim 1, characterized in that Obtaining a mapping index value of each target cell according to an identifier of a slice supported by each target cell and priority information of each slice, including: Obtaining, according to the identifiers of the slices supported by the target cells, priority information of the slices supported by the target cells from the identifiers and priority information of the slices; Obtaining the number of slices supported by each target cell according to the identifiers of the slices supported by each target cell; The mapping index value of each target cell is determined according to the number of slices supported by each target cell and the priority information of the slices supported by each target cell.

4. The method according to claim 3, characterized in that Get the signal strength index value of each target cell, including: Measuring the signal strength of each target cell to obtain a measurement result of each target cell, where the measurement result is at least one of a signal to interference plus noise ratio, a reference signal received power, and a reference signal received quality; The signal strength index value of each target cell is obtained according to the measurement result of each target cell.

5. The method according to claim 1, characterized in that The cell slice information also includes the identifier of each target cell; The method further comprises: Obtain a mapping table of the identifiers of each target cell and their mapping index values; Obtaining priority information of each target cell according to the mapping index value of each target cell and the cell signal strength index value of each target cell, including: Based on a mapping table of the identifiers of the target cells and their mapping index values, priority information of the target cells is obtained according to the mapping index values ​​of the target cells and the cell signal strength index values ​​of the target cells.

6. A network access method, characterized in that: include: The core network sends the identification and priority information of each slice to the terminal; In response to the measurement request of the terminal, sending cell slice information to the terminal, the cell slice information including identifiers of slices supported by each target cell, so that the terminal obtains a mapping index value of each target cell according to the identifiers of the slices supported by each target cell and the priority information of each slice, and the mapping index value of each target cell is positively correlated with the number of slices supported by the target cell and is positively correlated with the priority of the slices supported by the target cell; In response to the measurement request of the terminal, the signal strength of each target cell is sent to the terminal, so that the terminal obtains the signal strength index value of each target cell, and obtains the priority information of each target cell according to the mapping index value of each target cell and the cell signal strength index value of each target cell, wherein the signal strength index value of each target cell is positively correlated with its signal strength measurement result, and the priority size corresponding to the priority information of each target cell is positively correlated with the mapping index value of the target cell and is positively correlated with the cell signal strength index value of the target cell; receiving a random access request initiated by the terminal to a corresponding target cell according to the priority information of each target cell; The core network sends the identification and priority information of each slice to the terminal, including: The core network sends the user routing selection policy URSP rule to the terminal, and the URSP rule includes the identifier of each slice and the rule priority information, so that the terminal parses the URSP rule, obtains the identifier of each slice and the rule priority information, and matches the identifier of each slice with the rule priority information to obtain the priority information of each slice.

7. A network access device, characterized in that: include: A receiving module, used to receive a user routing selection policy URSP rule, wherein the URSP rule includes an identifier of each slice and rule priority information; A rule parsing module, used to parse the URSP rule to obtain the identifier of each slice and the rule priority information; A first acquisition module, used to obtain the identification and priority information of each slice; The first acquisition module is further used to correspond the identifier of the slice to the rule priority information to obtain the priority information of each slice; A second acquisition module is used to acquire cell slice information, where the cell slice information includes identifiers of slices supported by each target cell; A first obtaining module, configured to obtain a mapping index value of each target cell according to an identifier of the slices supported by each target cell and priority information of each slice, wherein the mapping index value of each target cell is positively correlated with the number of slices supported by the target cell and is positively correlated with the priority of the slices supported by the target cell; A second obtaining module is used to obtain a signal strength index value of each target cell, wherein the signal strength index value of each target cell is positively correlated with its signal strength measurement result; A third obtaining module is used to obtain the priority information of each target cell according to the mapping index value of each target cell and the cell signal strength index value of each target cell, wherein the priority size corresponding to the priority information of each target cell is positively correlated with the mapping index value of the target cell and is positively correlated with the cell signal strength index value of the target cell; The access request module is used to initiate a random access request to the corresponding target cell according to the priority information of each target cell.

8. An electronic device, comprising: A memory, a processor, and executable instructions stored in the memory and executable in the processor, wherein the processor implements the method according to any one of claims 1 to 5 when executing the executable instructions.

9. A computer-readable storage medium having computer-executable instructions stored thereon, characterized in that: When the executable instructions are executed by a processor, the method according to any one of claims 1 to 5 is implemented.

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