Random access resource selection method of access network slice and related equipment

Abstract

The embodiment of the invention provides a random access resource selection method of an access network slice and related equipment. The method executed by the user equipment comprises the following steps: monitoring random access related configuration information in a broadcast system message of a base station; and selecting a target random access resource according to the random access related configuration information and related parameters of the user equipment. Wherein the target random access resource is selected according to any one of the following modes: selection is carried out in a slice exclusive random access resource and a public random access resource, and then selection is carried out in a two-step random access resource and a four-step random access resource; selecting in the two-step random access resource and the four-step random access resource, and then selecting in the exclusive random access resource and the public random access resource of the slice; and selecting the slice exclusive two-step random access resource, the slice exclusive four-step random access resource, the public two-step random access resource and the public four-step random access resource.

Description

[0001] This application is a divisional application of an invention patent with an application date of August 5, 2021, an invention name of "Random access resource selection method and related equipment for access network slices", and an application number of "202110897230.2". Technical Field

[0002] The present disclosure relates to the field of communication technology, and in particular to a random access resource selection method applicable to access network slicing, a user equipment, a base station, an electronic device and a computer-readable storage medium. Background Art

[0003] 3GPP (3rd Generation Partnership Project) introduced network slicing technology in 5G (5th Generation Mobile Communication Technology), providing users with differentiated services through a sliced ​​service quality assurance system.

[0004] 3GPP is standardizing radio-side slicing, including defining random access mechanisms based on access network slicing. For the initial Bandwidth Part (BWP), when configuring slice-specific Random Access (Slice specific RA) resources, Common Random Access (Common RA) resources are also configured at the same time.

[0005] However, the existing scheme does not define a specific resource isolation method, random access resource selection mechanism and signaling indication. Therefore, it is necessary to design a random access resource selection scheme for access network slices.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure. Summary of the invention

[0007] The embodiments of the present disclosure provide a random access resource selection method for an access network slice, a user device, a base station, an electronic device and a computer-readable storage medium, which can provide suitable random access resources for the user device.

[0008] 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.

[0009] According to one aspect of the present disclosure, a method for selecting random access resources of an access network slice is provided, and the method is executed by a user equipment, including: monitoring random access related configuration information in a base station broadcast system message; selecting a target random access resource according to the random access related configuration information and relevant parameters of the user equipment; wherein the target random access resource is selected in any one of the following ways: first selecting from slice-exclusive random access resources and public random access resources, and then selecting a 2-step random access resource or a 4-step random access resource as the target random access resource in the selected random access resources; first selecting from 2-step random access resources and 4-step random access resources, and then selecting a slice-exclusive random access resource or a public random access resource as the target random access resource in the selected random access resources; selecting the target random access resource from slice-exclusive 2-step random access resources, slice-exclusive 4-step random access resources, public 2-step random access resources, and public 4-step random access resources.

[0010] In one embodiment of the present disclosure, the random access related configuration information includes at least one of the following options: a message A reference signal receiving power threshold, and a slice-specific message A reference signal receiving power threshold.

[0011] In one embodiment of the present disclosure, the relevant parameters include at least one of the following options: single network slice selection auxiliary information, slice group, and reference signal receiving power measurement result.

[0012] In one embodiment of the present disclosure, the slice group is determined in any one of the following ways: the core network notifies the user equipment of the relationship between the single network slice selection auxiliary information and the slice group through non-access network signaling; uses the slice / service type as the slice group; uses user access control as the slice group.

[0013] In one embodiment of the present disclosure, a target random access resource is selected based on the random access-related configuration information and the relevant parameters of the user equipment, including: if the relevant parameters of the user equipment only include reference signal receiving power measurement results, then a public random access resource is selected as the target random access resource; if the relevant parameters of the user equipment include slice or slice group information, then a slice-specific random access resource is selected as the target random access resource.

[0014] In one embodiment of the present disclosure, a target random access resource is selected based on the random access-related configuration information and relevant parameters of the user equipment, including: if a reference signal reception power measurement result of the user equipment is greater than or greater than equal to a message A reference signal reception power threshold or a slice-specific message A reference signal reception power threshold in the random access-related configuration information, then a 2-step random access resource is selected as the target random access resource; if a reference signal reception power measurement result of the user equipment is less than or less than equal to a message A reference signal reception power threshold or a slice-specific message A reference signal reception power threshold in the random access-related configuration information, then a 4-step random access resource is selected as the target random access resource.

[0015] In one embodiment of the present disclosure, a target random access resource is selected according to the random access-related configuration information and relevant parameters of the user equipment, including: if the random access resources corresponding to the slice-related parameters of the user equipment include slice-exclusive 2-step random access resources, and the reference signal receiving power measurement result of the user equipment is greater than or greater than or equal to the message A reference signal receiving power threshold or the slice-exclusive message A reference signal receiving power threshold in the random access-related configuration information, then, among the slice-exclusive random access resources corresponding to the slice-related parameters of the user equipment, the slice-exclusive 2-step random access resource is selected as the target random access resource.

[0016] In one embodiment of the present disclosure, a target random access resource is selected according to the random access-related configuration information and relevant parameters of the user equipment, including: if the random access resources corresponding to the slice-related parameters of the user equipment include slice-exclusive 2-step random access resources, and the reference signal receiving power measurement result of the user equipment is less than or less than or equal to the message A reference signal receiving power threshold or the slice-exclusive message A reference signal receiving power threshold in the random access-related configuration information, then, among the public random access resources corresponding to the slice-related parameters of the user equipment, a public 2-step random access resource or a public 4-step random access resource is selected as the target random access resource.

[0017] In one embodiment of the present disclosure, a target random access resource is selected according to the random access-related configuration information and relevant parameters of the user equipment, including: if the random access resource corresponding to the slice-related parameters of the user equipment includes a slice-exclusive 2-step random access resource, and the reference signal receiving power measurement result of the user equipment is less than or equal to the message A reference signal receiving power threshold or the slice-exclusive message A reference signal receiving power threshold in the random access-related configuration information, then the target random access resource is selected from other random access resources according to a preset rule.

[0018] In one embodiment of the present disclosure, a target random access resource is selected according to the random access-related configuration information and relevant parameters of the user equipment, including: if the random access resources corresponding to the slice-related parameters of the user equipment include at least one slice-exclusive 4-step random access resource and at least one slice-exclusive 2-step random access resource, or if the random access resources corresponding to the slice-related parameters of the user equipment include at least one slice-exclusive 4-step random access resource, then when the reference signal reception power measurement result of the user equipment is less than or less than or equal to the message A reference signal reception power threshold or the slice-exclusive message A reference signal reception power threshold in the random access-related configuration information, the slice-exclusive 4-step random access resource is selected as the target random access resource.

[0019] In one embodiment of the present disclosure, the random access related configuration information also includes: a slice-specific reference signal receiving power threshold.

[0020] In one embodiment of the present disclosure, a target random access resource is selected according to the random access-related configuration information and relevant parameters of the user equipment, including: if the random access resources corresponding to the slice-related parameters of the user equipment include multiple available slice-exclusive 4-step random access resources, then from the multiple available slice-exclusive 4-step random access resources, a random access resource whose reference signal reception power measurement result of the user equipment is greater than or equal to the slice-exclusive reference signal reception power threshold in the random access-related configuration information is selected, and then from the selected random access resources, a slice-exclusive 4-step random access resource with the highest threshold value is selected as the target random access resource.

[0021] In one embodiment of the present disclosure, a target random access resource is selected according to the random access-related configuration information and relevant parameters of the user equipment, including: if the random access resources corresponding to the slice-related parameters of the user equipment include multiple available slice-specific random access resources, then, from the multiple available slice-specific random access resources, a slice-specific 2-step random access resource is selected whose reference signal reception power measurement result of the user equipment is greater than or greater than or equal to the message A reference signal reception power threshold in the random access-related configuration information, and / or, a slice-specific message A reference signal reception power threshold in the random access-related configuration information, and then, from the selected slice-specific 2-step random access resources, the slice-specific 2-step random access resource with the highest threshold value is selected as the target random access resource.

[0022] According to another aspect of the present disclosure, a method for selecting random access resources for an access network slice is provided, the method being executed by a base station, and comprising: sending random access-related configuration information to a user equipment by broadcasting, so that the user equipment selects a target random access resource according to the random access-related configuration information and relevant parameters of the user equipment; wherein the target random access resource is selected in any one of the following ways: first selecting from slice-exclusive random access resources and public random access resources, and then selecting a 2-step random access resource or a 4-step random access resource from the selected random access resources as the target random access resource; first selecting from 2-step random access resources and 4-step random access resources, and then selecting a slice-exclusive random access resource or a public random access resource from the selected random access resources as the target random access resource; selecting the target random access resource from slice-exclusive 2-step random access resources, slice-exclusive 4-step random access resources, public 2-step random access resources, and public 4-step random access resources.

[0023] In one embodiment of the present disclosure, the random access related configuration information includes at least one of the following options: a message A reference signal receiving power threshold, and a slice-specific message A reference signal receiving power threshold.

[0024] In one embodiment of the present disclosure, the random access related configuration information also includes: a slice-specific reference signal receiving power threshold.

[0025] According to another aspect of the present disclosure, a user equipment is provided, comprising: an information monitoring unit, used to monitor random access related configuration information in a base station broadcast system message; a resource selection unit, used to select a target random access resource according to the random access related configuration information and relevant parameters of the user equipment; wherein the target random access resource is selected in any one of the following ways: first selecting from slice-exclusive random access resources and public random access resources, and then selecting a 2-step random access resource or a 4-step random access resource as the target random access resource in the selected random access resources; first selecting from 2-step random access resources and 4-step random access resources, and then selecting a slice-exclusive random access resource or a public random access resource as the target random access resource in the selected random access resources; selecting the target random access resource from slice-exclusive 2-step random access resources, slice-exclusive 4-step random access resources, public 2-step random access resources, and public 4-step random access resources.

[0026] According to another aspect of the present disclosure, a base station is provided, comprising: an information broadcasting unit, configured to send random access-related configuration information to a user equipment by broadcasting, so that the user equipment selects a target random access resource according to the random access-related configuration information and relevant parameters of the user equipment; wherein the target random access resource is selected in any one of the following ways: first selecting from slice-exclusive random access resources and public random access resources, and then selecting a 2-step random access resource or a 4-step random access resource as the target random access resource in the selected random access resources; first selecting from 2-step random access resources and 4-step random access resources, and then selecting a slice-exclusive random access resource or a public random access resource as the target random access resource in the selected random access resources; selecting the target random access resource from slice-exclusive 2-step random access resources, slice-exclusive 4-step random access resources, public 2-step random access resources, and public 4-step random access resources.

[0027] According to another aspect of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored. When the program is executed by a processor, the random access resource selection method for access network slices as described in the above embodiments is implemented.

[0028] According to another aspect of the present disclosure, an electronic device is provided, comprising: one or more processors; and a storage device configured to store one or more programs, so that when the one or more programs are executed by the one or more processors, the one or more processors implement the random access resource selection method for access network slices as described in the above embodiments.

[0029] In the technical solutions provided by some embodiments of the present disclosure, the user equipment monitors the random access configuration related information in the system message broadcast by the base station, and then can select the target random access resource according to the monitored random access configuration related information and the relevant parameters of the user equipment, so as to use the selected target random access resource for random access. Among them, the target random access resource is selected in any of the following ways: first select from the slice-specific random access resources and the public random access resources, and then select the 2-step random access resource or the 4-step random access resource as the target random access resource in the selected random access resource; first select from the 2-step random access resource and the 4-step random access resource, and then select the slice-specific random access resource or the public random access resource as the target random access resource in the selected random access resource; select the target random access resource from the slice-specific 2-step random access resource, the slice-specific 4-step random access resource, the public 2-step random access resource, and the public 4-step random access resource. It can be seen that the technical solution provided by the present disclosure provides a variety of random access resource selection schemes, which can provide suitable random access resources for user equipment and meet the isolation requirements of random access resources of access network slices.

[0030] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0032] Figure 1 A schematic diagram of a process of a random access resource selection method for an access network slice according to an embodiment of the present disclosure is schematically shown;

[0033] Figure 2 A schematic diagram of a process flow of a random access resource selection method for an access network slice according to another embodiment of the present disclosure is shown;

[0034] Figure 3 A schematic diagram of a process flow of a random access resource selection method for an access network slice according to another embodiment of the present disclosure is shown;

[0035] Figure 4 A block diagram of a user equipment according to an embodiment of the present disclosure is schematically shown;

[0036] Figure 5A block diagram of a base station according to an embodiment of the present disclosure is schematically shown;

[0037] Figure 6 A block diagram of an electronic device according to an embodiment of the present disclosure is schematically 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 this disclosure will be more comprehensive and complete and will fully convey the concept of the example embodiments to those skilled in the art.

[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 without one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the present disclosure.

[0040] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0041] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0042] In particular, according to an embodiment of the present disclosure, the process described below 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 storage medium, and the computer program includes a program code for executing the method shown in the flowchart.

[0043] It should be noted that the computer-readable storage 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 (Erasable Programmable Read Only Memory, Erasable Programmable Read Only Memory) 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, which carries a computer-readable program code. Such propagated data signals 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 storage medium other than a computer-readable storage medium, 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 storage medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical cable, RF (Radio Frequency), etc., or any suitable combination of the above.

[0044] The flowcharts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the methods, devices and computer program products according to various embodiments of the present disclosure. In this regard, each box in the flowchart 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 the 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 flowchart, and the combination of boxes in the block diagram or flowchart, 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.

[0045] The units involved in the embodiments described in the present disclosure may be implemented by software or hardware, and the units described may also be arranged in a processor. The names of these units do not, in some cases, constitute limitations on the units themselves.

[0046] As another aspect, the present application also provides a computer-readable storage medium, which may be included in the electronic device described in the above embodiment; or may exist independently without being assembled into the electronic device. The above computer-readable storage medium carries one or more programs, and when the above one or more programs are executed by an electronic device, the electronic device implements the method described in the following embodiment. For example, the electronic device may implement the following Figure 1 or Figure 2 or Figure 3 The steps shown.

[0047] Figure 1 The figure schematically shows a flow chart of a method for random access resource selection of an access network slice according to an embodiment of the present disclosure. Figure 1 The method provided in the embodiment may be executed by a user equipment (User Equipment, abbreviated as UE).

[0048] like Figure 1 As shown, the method provided by the embodiment of the present disclosure may include the following steps.

[0049] In step S110, random access related configuration information in a system message broadcast by a base station is monitored.

[0050] Among them, the random access related configuration information broadcast by the base station may include at least one of the following options: message A reference signal receiving power threshold MsgA-RSRP-Threshold, and slice-specific message A reference signal receiving power threshold SliceMsgA-RSRP-Threshold.

[0051] MsgA-RSRP-Threshold is the Reference Signal Received Power threshold (RSRP) used for selecting 2-step Random Access (2-step RA) and 4-step Random Access (4-step RA). MsgA-RSRP-Threshold is used when the UE selects between 2-step RA and 4-step RA when using Common RA resources. In order to meet the isolation requirements of random access resources of access network slices, random access-related configuration information may also include Slice MsgA-RSRP-Threshold. When the UE uses Slice specific RA resources, Slice MsgA-RSRP-Threshold can be used to select between 2-step RA and 4-step RA.

[0052] It should be noted that MsgA-RSRP-Threshold is used when the UE uses Common RA to select between 2-step RA and 4-step RA. If Slice MsgA-RSRP-Threshold is not defined and it is necessary to select between 2-stepRA and 4-step RA, the previous common cell configuration MsgA-RSRP-Threshold can be used for selection, which can reduce the amount of Slice specific RA resource configuration broadcast on the broadcast channel, that is, reduce signaling overhead.

[0053] In step S120, a target random access resource is selected according to random access related configuration information and UE related parameters.

[0054] Among them, the relevant parameters of the UE may include at least one of the following information: single network slice selection assistance information (slice S-NSSAI, Single Network Slice Selection Assistance Information, which identifies a network slice), slice group, reference signal received power measurement result. In an exemplary embodiment, the slice group can be determined in any of the following ways: (1) the core network notifies the UE of the relationship between the S-NSSAI and the slice group through non-access network (NAS) signaling; (2) using slice / service type (SST) as the slice group; (3) using user access control (UE Access Control, UAC) as the slice group.

[0055] In the disclosed embodiment, the relevant parameters include at least one of the slice S-NSSAI, slice group and reference signal received power measurement result. In particular, regarding the determination of the slice group, there are the following ways: (1) the core network explicitly informs the UE of the relationship between the S-NSSAI and the slice group through non-access network (NAS) signaling; (2) using slice / service type (SST) as the slice group; (3) using UAC as the slice group. In view of the above-mentioned method of determining the slice group, especially the way that the core network notifies the UE through signaling, it can be reasonably inferred that the relevant parameters (including slice S-NSSAI, slice group and reference signal received power measurement result) can be derived from the UE's reception, that is, these parameters are obtained or confirmed by the UE after receiving information from the core network or other network entities; at the same time, some parameters may also be pre-stored in the UE. Therefore, it can be considered that the relevant parameters can be derived from UE reception or storage.

[0056] In actual applications, the UE can determine the desired slice or slice group or Access Category based on the service initiated by the terminal itself, and then select random access resources for slice access. Among them, a slice is a slice in a network slice and has a slice ID; a slice group refers to a slice group formed by a number of slices with relatively close network requirements, and a slice group contains one or more slices; Access Category is a unified access control access category, that is, the UAC access category officially defined by 3GPP. For example, 5GC (5G Core) / OAM (Operation Administration and Maintenance) configures the mapping relationship between Access Category and S-NSSAI for the UE through NAS messages, and the base station broadcasts which Access Category the physical random access channel (PRACH) is configured for.

[0057] In addition, the number of the UE's expected slices or slice groups or Access Categories can be multiple, and the UE's expected slices or slice groups or Access Categories can be sorted according to pre-set slice selection rules, such as the priority order of access network slices, and the slice or slice group or Access Category with the highest priority is selected as the expected access network slice. Also, in the case where the random access resources corresponding to the appropriate expected access network slice cannot be selected, a slice or slice group or Access Category with a low priority can be selected, that is, a new expected access network slice, and then slice access can be performed through the random access resources corresponding to the new expected access network slice. This part will be explained in detail below and will not be repeated here.

[0058] And, the target random access resource can be selected in any of the following ways: Method 1, first select from Slice specific RA resources and Common RA resources, and then select 2-step RA resources or 4-step RA resources as the target random access resource in the selected random access resources; Method 2, first select from 2-step RA resources and 4-step RA resources, and then select Slice specific RA resources or Common RA resources as the target random access resource in the selected random access resources; Method 3, select from slice specific 2-step Random Access (Slice specific 2-step Random Access, abbreviated as Slice specific 2-step RA) resources, slice specific 4-step random access (Slice specific 4-step Random Access, abbreviated as Slice specific 4-step RA) resources, common 2-step random access (Common 2-step Random Access, abbreviated as Common 2-step RA) resources, common 4-step random access (Common 4-step Random Access, abbreviated as Common 4-step The target random access resource is selected from the RA) resources.

[0059] In the disclosed embodiment, non-Slice specific RA resources (non-slice exclusive random access resources) can be considered to be equivalent to Common RA resources (common random access resources).

[0060] Method 1 is to first determine whether the target random access resource is a Slice specific RA resource or a Common RA resource, and then select between 2-step RA resources and 4-step RA resources.

[0061] In an exemplary embodiment, selecting a target random access resource based on random access-related configuration information and UE-related parameters may include: if the UE-related parameters only include reference signal received power measurement results, selecting CommonRA resources as target random access resources; if the UE-related parameters include slice or slice group information, selecting Slicespecific RA resources as target random access resources.

[0062] If the relevant parameters of the UE only include the measurement results of the reference information receiving power, it means that the relevant parameters of the UE do not include slice and slice group information, then it can be considered that the UE uses public random access. Therefore, in the process of selecting the target random access resource, you can first determine the Common RA resource as the target random access resource, and then choose between the Common 2-step RA resource and the Common 4-step RA resource. Conversely, if the relevant parameters of the UE include slice or slice group information, it can be considered that the UE can use slice-specific random access. Therefore, in the process of selecting the target random access resource, you can first determine the Slice specific RA resource as the target random access resource, and then choose between the Slice specific 2-stepRA resource and the Slice specific 4-step RA resource.

[0063] The second method is to first determine whether the target random access resource is a -step RA resource or a 4-step RA resource, and then select from the Common RA resources in the Slice specific RA resources.

[0064] In an exemplary embodiment, selecting a target random access resource based on random access-related configuration information and UE-related parameters may include: if the UE's reference signal received power measurement result is greater than or greater than equal to the MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access-related configuration information, selecting a 2-step RA resource as the target random access resource; if the UE's reference signal received power measurement result is less than or less than equal to the MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access-related configuration information, selecting a 4-step RA resource as the target random access resource.

[0065] That is, if the UE's reference signal received power measurement result is greater than or greater than or equal to MsgA-RSRP-Threshold, or the UE's reference signal received power measurement result is greater than or greater than or equal to Slice MsgA-RSRP-Threshold, then in the process of selecting the target random access resource, the 2-step RA resource can be first determined as the target random access resource, and then the Common 2-step RA resource and the Slice specific 2-step RA resource are selected. Conversely, if the UE's reference signal received power measurement result is less than or less than or equal to MsgA-RSRP-Threshold, or the UE's reference signal received power measurement result is less than or less than or equal to Slice MsgA-RSRP-Threshold, then in the process of selecting the target random access resource, the 4-step RA resource can be first determined as the target random access resource, and then the Common 4-step RA resource and the Slice specific4-step RA resource are selected.

[0066] Method three is to select from Slice specific 2-step RA resources, Slice specific 4-step RA resources, Common 2-step RA resources, and Common 4-step RA resources to obtain the target random access resource.

[0067] The technical solution provided by the present disclosure provides a variety of random access resource selection solutions, which can provide appropriate random access resources for UEs and meet the isolation requirements of random access resources of access network slices. In addition, in the random access resource selection method of access network slices provided by the present disclosure, soft isolation and hard isolation of resources can be achieved by configuring resources, and a technical solution for selecting from multiple available slice resources is also provided.

[0068] (I) Soft Isolation of Resources

[0069] In an exemplary embodiment, selecting a target random access resource based on random access-related configuration information and UE-related parameters may include: if the random access resources corresponding to the slice-related parameters of the UE include Slice specific 2-step RA resources, and the reference signal received power measurement result of the UE is greater than or greater than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access-related configuration information, then selecting Slice specific 2-step RA resources as the target random access resources in the slice-exclusive random access resources corresponding to the slice-related parameters of the UE.

[0070] Among them, the slice-related parameters of the UE are the expected slices or slice groups or Access Categories determined by the UE according to the service initiated by the terminal itself, or in other words, the slice-related parameters of the UE can be understood as the expected access network slice corresponding to the UE. Accordingly, the random access resources corresponding to the slice-related parameters are the random access resources configured for the expected slices or slice groups or Access Categories.

[0071] If Slice specific 2-step RA resources are configured in the random access resources configured for the UE's desired slice or slice group or Access Category, and the UE's reference signal received power measurement result is greater than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold, then Slice specific 2-step RA resources are selected as the target random access resources in the random access resources configured for the UE's desired slice or slice group or Access Category.

[0072] In an exemplary embodiment, selecting a target random access resource based on random access-related configuration information and UE-related parameters may include: if the random access resources corresponding to the slice-related parameters of the UE include Slice specific 2-step RA resources, and the reference signal received power measurement result of the UE is less than or less than or equal to the MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access-related configuration information, then in the Common RA resources corresponding to the slice-related parameters of the UE, selecting Common 2-step RA resources or Common 4-step RA resources as the target random access resources.

[0073] If Slice specific 2-step RA resources are configured in the random access resources configured for the UE's desired slice or slice group or Access Category, but the UE's reference signal received power measurement result is less than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold, then Common 2-step RA resources or Common 4-stepRA resources are selected as the target random access resources in the Common RA resources corresponding to the UE's desired slice or slice group or Access Category. In this case, since Slice specific 4-step RA resources may not be configured in the random access resources configured for the UE's desired slice or slice group or Access Category, it is necessary to select the target random access resource in the Common2-step RA resources or Common 4-step RA resources.

[0074] In an exemplary embodiment, selecting a target random access resource based on random access-related configuration information and UE-related parameters may include: if the random access resources corresponding to the slice-related parameters of the UE include Slice specific 2-step RA resources, and the reference signal received power measurement result of the UE is less than or less than or equal to the MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access-related configuration information, then selecting the target random access resource from other random access resources according to a preset rule.

[0075] As explained above, the number of the UE's desired slices or slice groups or Access Categories can be multiple. In practical applications, the UE's desired slices or slice groups or Access Categories can be sorted according to the preset slice selection rules, such as the priority order of the slices or slice groups or Access Categories, and the slice or slice group or Access Category with the highest priority can be selected. Also, in the case where the random access resource corresponding to the appropriate desired slice or slice group or Access Category cannot be selected, a slice or slice group or Access Category with a low priority can be selected, and then slice access can be performed through the random access resource corresponding to the new desired slice or slice group or Access Category.

[0076] Therefore, if the random access resources configured with Slice specific 2-step RA resources of the UE's expected slice or slice group or Access Category are configured, but the UE's reference signal received power measurement result is less than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold, then the UE can determine a new expected slice or slice group or Access Category according to the preset slice selection rule, and then select the target random access resource from the random access resources configured with the new expected slice or slice group or Access Category. Among them, the priority of the expected slice or slice group or Access Category is higher than the priority of the new expected slice or slice group or Access Category. In addition, if there are multiple expected slices or slice groups or Access Categories with low priority, they can be selected in ascending order of slice ID. Of course, they can also be selected in other ways, and there is no limitation on this.

[0077] In summary, in the embodiments of the present disclosure, soft isolation of resources is achieved by configuring Slice specific RA resources and Common RA resources.

[0078] (II) Hard Isolation of Resources

[0079] In an exemplary embodiment, selecting a target random access resource based on random access-related configuration information and UE-related parameters may include: if the random access resources corresponding to the slice-related parameters of the UE include at least one Slicespecific 4-step RA resource and at least one Slice specific2-step RA resource, or, if the random access resources corresponding to the slice-related parameters of the UE include at least one Slice specific 4-step RA resource, then when the reference signal received power measurement result of the UE is less than or less than or equal to the MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access-related configuration information, selecting the Slice specific 4-step RA resource as the target random access resource.

[0080] That is, if the random access resources configured in the desired slice or slice group or Access Category of the UE are configured with at least one Slice specific 4-step RA resource and at least one Slice specific 2-stepRA resource, and the reference signal received power measurement result of the UE is less than or less than or equal to the MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access related configuration information, then the Slice specific 4-step RA resource can be selected as the target random access resource. In addition, in this case, because the Slice specific 2-step RA resource is configured, if the reference signal received power measurement result of the UE is greater than or greater than or equal to the MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access related configuration information, then the Slicespecific 2-step RA resource can be selected as the target random access resource.

[0081] If the random access resources of the UE's expected slice or slice group or Access Category configuration are configured with at least one Slice specific 4-step RA resource, and no Slice specific 2-step RA resource is configured, and the UE's reference signal received power measurement result is less than or equal to the MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access related configuration information, then the Slice specific 4-step RA resource can be selected as the target random access resource.

[0082] In summary, in the embodiments of the present disclosure, hard isolation of resources is achieved by configuring Slice specific 4-step RA resources and Slice specific 2-step RA resources.

[0083] In the exemplary embodiment of the present disclosure, by configuring Slice specific RA resources and Common RA resources in different ways, soft and hard isolation of random access resources is achieved, random access resources can be flexibly configured, and the fragmentation of random access resources can be effectively reduced, meeting the different needs of operators and customers for isolation of random access resources, improving resource utilization efficiency, and enabling operators to divide and configure random access resources more reasonably and efficiently according to needs.

[0084] (III) Select from multiple available slice resources

[0085] The random access related configuration information sent by the base station includes not only MsgA-RSRP-Threshold and SliceMsgA-RSRP-Threshold, but also the slice-specific reference signal receiving power threshold Slice RSRP-Threshold. Slice RSRP-Threshold can be used for Slice specific 4-step RA resource selection.

[0086] In an exemplary embodiment, selecting a target random access resource based on random access-related configuration information and UE-related parameters may include: if the random access resources corresponding to the slice-related parameters of the UE include multiple available Slicespecific 4-step RA resources, then selecting a random access resource in which the UE's reference signal received power measurement result is greater than or equal to the Slice RSRP-Threshold in the random access-related configuration information from among the multiple available Slice specific 4-step RA resources, and then selecting the Slicespecific 4-step RA resource with the highest threshold value as the target random access resource from among the selected random access resources.

[0087] If multiple available Slice specific 4-step RA resources are configured in the random access resources of the desired slice or slice group or Access Category configuration of the UE, then among the multiple available Slice specific 4-step RA resources, select a random access resource (i.e., Slice specific 4-step RA resource) whose reference signal received power measurement result of the UE is greater than or equal to the Slice RSRP-Threshold, and then select the Slice specific 4-step RA resource with the highest threshold value as the target random access resource among the selected random access resources.

[0088] In an exemplary embodiment, selecting a target random access resource based on random access-related configuration information and UE-related parameters may include: if the random access resources corresponding to the slice-related parameters of the UE include multiple available Slicespecific RA resources, then selecting, from the multiple available Slice specific RA resources, a Slice specific 2-step RA resource in which the UE's reference signal received power measurement result is greater than or equal to MsgA-RSRP-Threshold in the random access-related configuration information, and / or, a Slice MsgA-RSRP-Threshold in the random access-related configuration information, and then, among the selected Slice specific 2-step RA resources, selecting the Slice specific 2-step RA resource with the highest threshold value as the target random access resource.

[0089] If multiple available Slice specific RA resources are configured in the random access resources of the UE's desired slice or slice group or Access Category configuration, then among the multiple available Slice specific RA resources, select a Slice specific 2-step RA resource whose reference signal received power measurement result of the UE is greater than or equal to MsgA-RSRP-Threshold, and then select the Slice specific 2-step RA resource with the highest threshold value among the selected Slice specific 2-step RA resources as the target random access resource.

[0090] If multiple available Slice specific RA resources are configured in the random access resources of the UE's desired slice or slice group or Access Category configuration, then among the multiple available Slice specific RA resources, select a Slicespecific 2-step RA resource whose reference signal received power measurement result of the UE is greater than or equal to Slice MsgA-RSRP-Threshold, and then select the Slice specific 2-step RA resource with the highest threshold value among the selected Slice specific 2-step RA resources as the target random access resource.

[0091] In addition, if multiple available Slice specific RA resources are configured in the random access resources configured in the desired slice or slice group or Access Category of the UE, then among the multiple available Slice specific RA resources, select a Slice specific 2-step RA resource whose reference signal received power measurement result of the UE is greater than or equal to MsgA-RSRP-Threshold and SliceMsgA-RSRP-Threshold, and then select the Slice specific 2-step RA resource with the highest threshold value among the selected Slice specific2-step RA resources as the target random access resource.

[0092] It should be noted that, as explained in step S110 above, MsgA-RSRP-Threshold is used when the UE uses Common RA to select between 2-step RA and 4-step RA; when the UE uses Slicespecific RA resources, Slice MsgA-RSRP-Threshold can be used to select between 2-step RA and 4-step RA. Therefore, in general, if Slice MsgA-RSRP-Threshold is defined, SliceMsgA-RSRP-Threshold is used for selection. Also, if Slice MsgA-RSRP-Threshold is not defined and it is necessary to select between 2-step RA and 4-step RA, MsgA-RSRP-Threshold can be used for selection, which can reduce the amount of Slice specific RA resource configuration broadcast on the broadcast channel, that is, reduce signaling overhead.

[0093] In an exemplary embodiment of the present disclosure, if multiple available Slice specific RA resources are configured in the random access resources corresponding to the slice-related parameters of the UE, the UE can select from the multiple available resources based on the reference signal receiving power measurement results and the random access-related configuration information, and can flexibly support different configuration methods of Slice specific RA resources. It supports different UEs in the same access network slice to adopt multiple configurations, effectively reduces the random access delay, improves the random access success rate, and better guarantees the random access of UEs with poor channel conditions and high mobility UEs in high-priority access network slices.

[0094] In addition, in an exemplary embodiment of the present disclosure, the random access-related configuration information broadcast by the base station may include Slice MsgA-RSRP-Threshold and SliceRSRP-Threshold. On the one hand, by being different from the relevant configuration of the Common RA resources, exclusive configuration based on customer / scenario / service requirements can be implemented for high-priority access network slices. On the other hand, the above-mentioned information elements may not be explicitly configured and the relevant configuration of the Common RA resources may be used by default to reduce the system message load and meet the isolation requirements of random access resources of high-priority access network slices.

[0095] The random access resource selection method for access network slices provided in the embodiment of the present disclosure is that the UE monitors the random access configuration related information in the system message broadcast by the base station, and then selects the target random access resource according to the monitored random access configuration related information and the relevant parameters of the UE, so as to use the selected target random access resource for random access. Among them, the target random access resource is selected in any of the following ways: first select from Slice specific RA resources and Common RA resources, and then select 2-step RA resources or 4-stepRA resources as the target random access resource in the selected random access resources; first select from 2-step RA resources and 4-step RA resources, and then select Slice specific RA resources or Common RA resources as the target random access resource in the selected random access resources; select the target random access resource from Slice specific 2-step RA resources, Slice specific 4-step RA resources, Common 2-stepRA resources, and Common 4-step RA resources. It can be seen that the technical solution provided by the present disclosure provides a variety of random access resource selection options, which can provide suitable random access resources for the UE and meet the isolation requirements of random access resources of access network slices.

[0096] Figure 2 A flow chart of a method for random access resource selection of an access network slice according to another embodiment of the present disclosure is schematically shown. Figure 2 The method provided in the embodiment may be executed by a base station.

[0097] like Figure 2 As shown, the method provided by the embodiment of the present disclosure may include the following steps.

[0098] Step S210: Send random access related configuration information to the UE by broadcasting, so that the UE selects a target random access resource according to the random access related configuration information and relevant parameters of the UE.

[0099] Among them, the target random access resource is selected in any of the following ways: Method 1, first select from Slicespecific RA resources and Common RA resources, and then select 2-step RA resources or 4-step RA resources as the target random access resource in the selected random access resources; Method 2, first select from 2-step RA resources and 4-step RA resources, and then select Slice specific RA resources or Common RA resources as the target random access resource in the selected random access resources; Method 3, select the target random access resource from Slice specific 2-step RA resources, Slice specific4-step RA resources, Common 2-step RA resources, and Common 4-step RA resources.

[0100] In an exemplary embodiment, the random access related configuration information broadcast by the base station may include at least one of the following options: MsgA-RSRP-Threshold, Slice MsgA-RSRP-Threshold.

[0101] It should be noted that MsgA-RSRP-Threshold is used when the UE uses Common RA to select between 2-step RA and 4-step RA. When the UE uses Slice specific RA resources, SliceMsgA-RSRP-Threshold can be used to select between 2-step RA and 4-step RA. Also, if SliceMsgA-RSRP-Threshold is not defined and a selection between 2-step RA and 4-step RA is required, MsgA-RSRP-Threshold can be used to make the selection, which can reduce the amount of Slice specific RA resource configuration broadcast on the broadcast channel, that is, reduce signaling overhead.

[0102] In an exemplary embodiment, the random access related configuration information broadcast by the base station may further include: Slice RSRP-Threshold. Slice RSRP-Threshold may be used to perform Slice specific 4-step RA resource selection.

[0103] Combine the following Figure 3 The method provided in the embodiment of the present disclosure is illustrated by way of example, but the present disclosure is not limited thereto.

[0104] The method provided by the embodiment of the present disclosure can realize the selection of random access resources and can be applied to the fields of wireless communication and terminal technology, especially to 5G evolution and its standardization.

[0105] Figure 3 A flow chart of a method for random access resource selection of an access network slice according to another embodiment of the present disclosure is schematically shown.

[0106] like Figure 3 As shown, the method provided by the embodiment of the present disclosure may include the following steps.

[0107] In step S310, the base station broadcasts random access related configuration information to the UE.

[0108] The random access related configuration information broadcast by the base station may include at least one of the following options: MsgA-RSRP-Threshold, Slice MsgA-RSRP-Threshold.

[0109] It should be noted that MsgA-RSRP-Threshold is used when the UE uses Common RA to select between 2-step RA and 4-step RA. When the UE uses Slice specific RA resources, SliceMsgA-RSRP-Threshold can be used to select between 2-step RA and 4-step RA. Also, if SliceMsgA-RSRP-Threshold is not defined and a selection between 2-step RA and 4-step RA is required, MsgA-RSRP-Threshold can be used to make the selection, which can reduce the amount of Slice specific RA resource configuration broadcast on the broadcast channel, that is, reduce signaling overhead.

[0110] In addition, the random access related configuration information broadcast by the base station may also include: Slice RSRP-Threshold. Slice RSRP-Threshold may be used to perform Slice specific 4-step RA resource selection.

[0111] In step S320, the UE selects a target random access resource according to the random access related configuration information broadcast by the base station and the relevant parameters of the UE.

[0112] The UE-related parameters may include at least one of the following information: slice S-NSSAI, slice group, reference signal received power measurement result. And the slice group may be determined in any of the following ways: (1) the core network notifies the UE of the relationship between the S-NSSAI and the slice group through NAS signaling; (2) using SST as the slice group; (3) using UAC as the slice group.

[0113] The target random access resource is selected in any of the following ways:

[0114] Method 1: First select between Slice specific RA resources and Common RA resources, and then select 2-step RA resources or 4-step RA resources as target random access resources among the selected random access resources.

[0115] The specific implementation can be: if the UE-related parameters only include the reference signal received power measurement result, then select the Common RA resource as the target random access resource; if the UE-related parameters include slice or slice group information, then select the Slice specific RA resource as the target random access resource.

[0116] Method 2: First select between 2-step RA resources and 4-step RA resources, and then select Slice specific RA resources or Common RA resources as the target random access resource among the selected random access resources.

[0117] The specific implementation can be: if the UE's reference signal received power measurement result is greater than or greater than equal to the MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access related configuration information, then select the 2-step RA resource as the target random access resource; if the UE's reference signal received power measurement result is less than or less than equal to the MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access related configuration information, then select the 4-step RA resource as the target random access resource.

[0118] Method 3: Select a target random access resource from Slice specific 2-step RA resources, Slice specific 4-step RA resources, Common 2-step RA resources, and Common 4-step RA resources.

[0119] In addition, in the method for selecting random access resources for access network slices provided in the present invention, soft isolation and hard isolation of resources can be achieved through the configuration of resources, which has been explained in detail above and will not be repeated here. It has been explained in detail above that soft isolation of resources is achieved through the configuration of Slice specific RA resources and Common RA resources; hard isolation of resources is achieved through the configuration of Slice specific 4-step RA resources and Slice specific 2-step RA resources.

[0120] In addition, the method for selecting random access resources for access network slices provided in the present invention also provides a technical solution for selecting from multiple available slice resources. The above also describes in detail how to select from multiple available slice resources, which will not be repeated here.

[0121] Figure 4 A block diagram of a user equipment according to an embodiment of the present disclosure is schematically shown. Figure 4 As shown, the user equipment 400 provided in the embodiment of the present disclosure may include: an information monitoring unit 410 and a resource selection unit 420.

[0122] The information monitoring unit 410 may be used to monitor the random access related configuration information in the system message broadcast by the base station; the resource selection unit 420 may be used to select the target random access resource according to the random access related configuration information and the relevant parameters of the UE. The target random access resource is selected in any of the following ways: first select from Slice specific RA resources and Common RA resources, and then select 2-step RA resources or 4-step RA resources as the target random access resource in the selected random access resources; first select from 2-step RA resources and 4-step RA resources, and then select Slice specific RA resources or Common RA resources as the target random access resource in the selected random access resources; select the target random access resource from Slice specific 2-step RA resources, Slice specific 4-step RA resources, Common2-step RA resources, and Common 4-step RA resources.

[0123] In an exemplary embodiment, the random access related configuration information may include at least one of the following options: MsgA-RSRP-Threshold, Slice MsgA-RSRP-Threshold.

[0124] In an exemplary embodiment, the relevant parameters may include at least one of the following information: slice S-NSSAI, slice group, reference signal received power measurement result.

[0125] In an exemplary embodiment, the slice group is determined in any of the following ways: the core network notifies the UE of the relationship between the S-NSSAI and the slice group through NAS signaling; (2) using SST as the slice group; (3) using UAC as the slice group.

[0126] In an exemplary embodiment, the resource selection unit 420 may be used to: if the relevant parameters of the UE include only the reference signal received power measurement result, select the Common RA resource as the target random access resource; if the relevant parameters of the UE include slice or slice group information, select the Slice specific RA resource as the target random access resource.

[0127] In an exemplary embodiment, the resource selection unit 420 may be used to: if the UE's reference signal received power measurement result is greater than or greater than equal to the MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access related configuration information, select a 2-step RA resource as the target random access resource; if the UE's reference signal received power measurement result is less than or less than equal to the MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access related configuration information, select a 4-step RA resource as the target random access resource.

[0128] In an exemplary embodiment, the resource selection unit 420 may be used for: if the random access resources corresponding to the slice-related parameters of the UE include Slice specific 2-step RA resources, and the reference signal received power measurement result of the UE is greater than or greater than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access-related configuration information, then the Slice specific 2-step RA resources are selected as the target random access resources in the slice-exclusive random access resources corresponding to the slice-related parameters of the UE.

[0129] In an exemplary embodiment, the resource selection unit 420 may be used to: if the random access resources corresponding to the slice-related parameters of the UE include Slice specific 2-step RA resources, and the reference signal received power measurement result of the UE is less than or less than or equal to the MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access-related configuration information, then in the Common RA resources corresponding to the slice-related parameters of the UE, select Common 2-step RA resources or Common 4-step RA resources as the target random access resources.

[0130] In an exemplary embodiment, the resource selection unit 420 can be used for: if the random access resources corresponding to the slice-related parameters of the UE include Slice specific 2-step RA resources, and the reference signal received power measurement result of the UE is less than or less than or equal to the MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access-related configuration information, then the target random access resource is selected from other random access resources according to a preset rule.

[0131] In an exemplary embodiment, the resource selection unit 420 may be used for: if the random access resources corresponding to the slice-related parameters of the UE include at least one Slice specific 4-step RA resource and at least one Slice specific 2-stepRA resource, or if the random access resources corresponding to the slice-related parameters of the UE include at least one Slice specific 4-step RA resource, then when the reference signal received power measurement result of the UE is less than or less than or equal to the MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access-related configuration information, select the Slicespecific 4-step RA resource as the target random access resource.

[0132] In an exemplary embodiment, the random access related configuration information may further include: Slice RSRP-Threshold.

[0133] In an exemplary embodiment, the resource selection unit 420 can be used for: if the random access resources corresponding to the slice-related parameters of the UE include multiple available Slice specific 4-step RA resources, then among the multiple available Slice specific 4-step RA resources, select a random access resource whose reference signal received power measurement result of the UE is greater than or greater than or equal to the Slice RSRP-Threshold in the random access-related configuration information, and then select the Slice specific 4-step RA resource with the highest threshold value as the target random access resource among the selected random access resources.

[0134] In an exemplary embodiment, the resource selection unit 420 may be used for: if the random access resources corresponding to the slice-related parameters of the UE include multiple available Slice specific RA resources, then, from the multiple available Slice specific RA resources, select a Slicespecific 2-step RA resource whose reference signal received power measurement result of the UE is greater than or equal to MsgA-RSRP-Threshold in the random access-related configuration information, and / or, a Slice MsgA-RSRP-Threshold in the random access-related configuration information, and then, from the selected Slice specific 2-step RA resources, select the Slice specific 2-step RA resource with the highest threshold value as the target random access resource.

[0135] The specific implementation of each unit in the user equipment provided by the embodiment of the present disclosure can refer to the contents of the random access resource selection method of the access network slice mentioned above, and will not be repeated here.

[0136] Figure 5 A block diagram of a base station according to an embodiment of the present disclosure is schematically shown. Figure 5 As shown, the base station 500 provided in the embodiment of the present disclosure may include: an information broadcasting unit 510.

[0137] The information broadcast unit 510 may be used to: send random access related configuration information to the UE by broadcasting, so that the UE may select a target random access resource according to the random access related configuration information and relevant parameters of the UE.

[0138] Among them, the target random access resource is selected in any of the following ways: Method 1, first select from Slicespecific RA resources and Common RA resources, and then select 2-step RA resources or 4-step RA resources as the target random access resource in the selected random access resources; Method 2, first select from 2-step RA resources and 4-step RA resources, and then select Slice specific RA resources or Common RA resources as the target random access resource in the selected random access resources; Method 3, select the target random access resource from Slice specific 2-step RA resources, Slice specific4-step RA resources, Common 2-step RA resources, and Common 4-step RA resources.

[0139] In an exemplary embodiment, the random access related configuration information broadcast by the base station may include at least one of the following options: MsgA-RSRP-Threshold, Slice MsgA-RSRP-Threshold.

[0140] In an exemplary embodiment, the random access related configuration information broadcast by the base station may further include: Slice RSRP-Threshold.

[0141] The specific implementation of each unit in the base station provided by the embodiment of the present disclosure can refer to the contents of the random access resource selection method of the above-mentioned access network slice, and will not be repeated here.

[0142] Reference below Figure 6 , which shows a schematic structural diagram of an electronic device suitable for implementing an embodiment of the present disclosure. Figure 6 The electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present disclosure. Figure 6 The electronic device in the embodiment may be, for example, a user device and / or a network device, but the present disclosure is not limited thereto.

[0143] Reference Figure 6 The electronic device provided by the embodiment of the present disclosure may include: a processor 101, a communication interface 102, a memory 103 and a communication bus 104.

[0144] The processor 101 , the communication interface 102 and the memory 103 communicate with each other via the communication bus 104 .

[0145] Optionally, the communication interface 102 may be an interface of a communication module, such as an interface of a GSM (Global System for Mobilecommunications) module. The processor 101 is used to execute a program. The memory 103 is used to store a program. The program may include a computer program, which includes computer operating instructions.

[0146] The processor 101 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present disclosure.

[0147] The memory 103 may include a high-speed RAM (random access memory) memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0148] Among them, the program can be specifically used for: monitoring random access related configuration information in the base station broadcast system message; selecting the target random access resource according to the random access related configuration information and the relevant parameters of the UE; wherein the target random access resource is selected in any of the following ways: first selecting from Slice specific RA resources and Common RA resources, and then selecting 2-step RA resources or 4-step RA resources as the target random access resource in the selected random access resources; first selecting from 2-step RA resources and 4-step RA resources, and then selecting Slice specific RA resources or Common RA resources as the target random access resource in the selected random access resources; selecting the target random access resource from Slice specific2-step RA resources, Slice specific 4-step RA resources, Common 2-step RA resources, and Common 4-stepRA resources.

[0149] Alternatively, the program may be specifically used to: send random access related configuration information to the UE by broadcasting, so that the UE selects a target random access resource based on the random access related configuration information and UE related parameters; wherein the target random access resource is selected in any of the following ways: first select from Slice specific RA resources and Common RA resources, and then select 2-step RA resources or 4-step RA resources as the target random access resource from the selected random access resources; first select from 2-step RA resources and 4-step RA resources, and then select Slice specific RA resources or Common RA resources as the target random access resource from the selected random access resources; select the target random access resource from Slice specific2-step RA resources, Slice specific 4-step RA resources, Common 2-step RA resources, and Common 4-stepRA resources.

[0150] It should be noted that although several units of the device for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more units described above can be embodied in one unit. Conversely, the features and functions of one unit described above can be further divided into multiple units to be embodied.

[0151] Through the description of the above implementation, it is easy for those skilled in the art to understand that the example implementation described here can be implemented by software, or by software combined with necessary hardware. Therefore, the technical solution according to the implementation of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, including several instructions to enable a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) to execute the method according to the implementation of the present disclosure.

[0152] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0153] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A random access resource selection method for an access network slice, characterized in that: The method is performed by a user equipment, and includes: Monitoring random access related configuration information in a base station broadcast system message; the random access related configuration information includes at least one of the following options: a message A reference signal receiving power threshold, a slice-specific message A reference signal receiving power threshold; According to the random access related configuration information and the related parameters of the user equipment, a target random access resource is selected; wherein, The target random access resource is selected in any of the following ways: First, select from the slice-specific random access resources and the public random access resources, and then select a 2-step random access resource or a 4-step random access resource from the selected random access resources as the target random access resource; First, select from 2-step random access resources and 4-step random access resources, and then select a slice-specific random access resource or a public random access resource as the target random access resource from the selected random access resources; The target random access resource is selected from slice-exclusive 2-step random access resources, slice-exclusive 4-step random access resources, public 2-step random access resources, and public 4-step random access resources.

2. The method according to claim 1, characterized in that The relevant parameters include at least one of the following options: single network slice selection auxiliary information, slice group, and reference signal receiving power measurement result.

3. The method according to claim 2, characterized in that The slice group is determined in any of the following ways: the core network notifies the user equipment of the relationship between the single network slice selection auxiliary information and the slice group through non-access network signaling; using the slice / service type as the slice group; Use user access control as slice group.

4. The method according to claim 1, characterized in that Selecting a target random access resource according to the random access related configuration information and related parameters of the user equipment includes: If the relevant parameters of the user equipment only include a reference signal received power measurement result, selecting a common random access resource as the target random access resource; If the relevant parameters of the user equipment include slice or slice group information, a slice-specific random access resource is selected as the target random access resource.

5. The method according to claim 1, characterized in that Selecting a target random access resource according to the random access related configuration information and related parameters of the user equipment includes: If the random access resources corresponding to the slice-related parameters of the user equipment include slice-exclusive 2-step random access resources, and the reference signal received power measurement result of the user equipment is greater than or greater than or equal to the message A reference signal received power threshold or the slice-exclusive message A reference signal received power threshold in the random access-related configuration information, then among the slice-exclusive random access resources corresponding to the slice-related parameters of the user equipment, the slice-exclusive 2-step random access resources are selected as the target random access resources.

6. The method according to claim 1, characterized in that Selecting a target random access resource according to the random access related configuration information and related parameters of the user equipment includes: If the random access resources corresponding to the slice-related parameters of the user equipment include slice-exclusive 2-step random access resources, and the reference signal received power measurement result of the user equipment is less than or less than or equal to the message A reference signal received power threshold or the slice-exclusive message A reference signal received power threshold in the random access-related configuration information, then among the public random access resources corresponding to the slice-related parameters of the user equipment, the public 2-step random access resources or the public 4-step random access resources are selected as the target random access resources.

7. The method according to claim 1, characterized in that Selecting a target random access resource according to the random access related configuration information and related parameters of the user equipment includes: If the random access resources corresponding to the slice-related parameters of the user equipment include slice-exclusive 2-step random access resources, and the reference signal receiving power measurement result of the user equipment is less than or less than or equal to the message A reference signal receiving power threshold or the slice-exclusive message A reference signal receiving power threshold in the random access-related configuration information, the target random access resource is selected from other random access resources according to a preset rule.

8. The method according to claim 1, characterized in that Selecting a target random access resource according to the random access related configuration information and related parameters of the user equipment includes: If the random access resources corresponding to the slice-related parameters of the user equipment include at least one slice-exclusive 4-step random access resource and at least one slice-exclusive 2-step random access resource, or if the random access resources corresponding to the slice-related parameters of the user equipment include at least one slice-exclusive 4-step random access resource, then when the reference signal receiving power measurement result of the user equipment is less than or less than or equal to the message A reference signal receiving power threshold or the slice-exclusive message A reference signal receiving power threshold in the random access-related configuration information, the slice-exclusive 4-step random access resource is selected as the target random access resource.

9. The method according to claim 1, characterized in that: The random access related configuration information also includes: a slice-specific reference signal receiving power threshold.

10. The method according to claim 9, characterized in that Selecting a target random access resource according to the random access related configuration information and related parameters of the user equipment includes: If the random access resources corresponding to the slice-related parameters of the user equipment include multiple available slice-exclusive 4-step random access resources, then among the multiple available slice-exclusive 4-step random access resources, select a random access resource whose reference signal reception power measurement result of the user equipment is greater than or greater than or equal to the slice-exclusive reference signal reception power threshold in the random access-related configuration information, and then among the selected random access resources, select the slice-exclusive 4-step random access resource with the highest threshold value as the target random access resource.

11. The method according to claim 1, characterized in that: Selecting a target random access resource according to the random access related configuration information and related parameters of the user equipment includes: If the random access resources corresponding to the slice-related parameters of the user equipment include multiple available slice-specific random access resources, then among the multiple available slice-specific random access resources, select a slice-specific 2-step random access resource whose reference signal reception power measurement result of the user equipment is greater than or greater than or equal to the message A reference signal reception power threshold in the random access-related configuration information, and / or, a slice-specific message A reference signal reception power threshold in the random access-related configuration information, and then select the slice-specific 2-step random access resource with the highest threshold value as the target random access resource among the selected slice-specific 2-step random access resources.

12. A random access resource selection method for an access network slice, characterized in that: The method is performed by a base station and includes: Sending random access related configuration information to a user equipment by broadcasting, so that the user equipment selects a target random access resource according to the random access related configuration information and relevant parameters of the user equipment; the random access related configuration information includes at least one of the following options: a message A reference signal receiving power threshold, a slice-specific message A reference signal receiving power threshold; The target random access resource is selected in any of the following ways: First, select from the slice-specific random access resources and the public random access resources, and then select a 2-step random access resource or a 4-step random access resource from the selected random access resources as the target random access resource; First, select from 2-step random access resources and 4-step random access resources, and then select a slice-specific random access resource or a public random access resource as the target random access resource from the selected random access resources; The target random access resource is selected from slice-exclusive 2-step random access resources, slice-exclusive 4-step random access resources, public 2-step random access resources, and public 4-step random access resources.

13. The method according to claim 12, characterized in that The random access related configuration information also includes: a slice-specific reference signal receiving power threshold.

14. A user equipment, characterized in that: include: An information monitoring unit, used to monitor random access related configuration information in a base station broadcast system message; The random access related configuration information includes at least one of the following options: a message A reference signal receiving power threshold, a slice-specific message A reference signal receiving power threshold; A resource selection unit, configured to select a target random access resource according to the random access related configuration information and the related parameters of the user equipment; wherein, The target random access resource is selected in any of the following ways: First, select from the slice-specific random access resources and the public random access resources, and then select a 2-step random access resource or a 4-step random access resource from the selected random access resources as the target random access resource; First, select from 2-step random access resources and 4-step random access resources, and then select a slice-specific random access resource or a public random access resource as the target random access resource from the selected random access resources; The target random access resource is selected from slice-exclusive 2-step random access resources, slice-exclusive 4-step random access resources, public 2-step random access resources, and public 4-step random access resources.

15. A base station, characterized in that: include: An information broadcasting unit, configured to send random access related configuration information to a user equipment by broadcasting, so that the user equipment selects a target random access resource according to the random access related configuration information and relevant parameters of the user equipment; the random access related configuration information includes at least one of the following options: a message A reference signal receiving power threshold, a slice-specific message A reference signal receiving power threshold; The target random access resource is selected in any of the following ways: First, select from the slice-specific random access resources and the public random access resources, and then select a 2-step random access resource or a 4-step random access resource from the selected random access resources as the target random access resource; First, select from 2-step random access resources and 4-step random access resources, and then select a slice-specific random access resource or a public random access resource as the target random access resource from the selected random access resources; The target random access resource is selected from slice-exclusive 2-step random access resources, slice-exclusive 4-step random access resources, public 2-step random access resources, and public 4-step random access resources.

16. An electronic device, characterized in that: include: one or more processors; A storage device configured to store one or more programs, which, when executed by the one or more processors, enables the one or more processors to implement the method according to any one of claims 1 to 11 or the method according to claim 12 or 13.

17. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 11 or the method according to claim 12 or 13 is implemented.

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