CN115707142A

CN115707142A - Random access resource selection method for access network slice and related equipment

Info

Publication number: CN115707142A
Application number: CN202110897230.2A
Authority: CN
Inventors: 杨蓓
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2023-02-17

Abstract

The embodiment of the disclosure provides a random access resource selection method of an access network slice and related equipment. The method performed by the user equipment comprises: monitoring random access related configuration information in a base station broadcast system message; and selecting the 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 according to any one of the following modes: firstly, selecting from slice dedicated random access resources and public random access resources, and then selecting from 2-step random access resources and 4-step random access resources; firstly, selecting from 2 steps of random access resources and 4 steps of random access resources, and then selecting from slice dedicated random access resources and public random access resources; selecting from 2-step random access resources exclusive to the slice, 4-step random access resources exclusive to the slice, 2-step random access resources in public and 4-step random access resources in public.

Description

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

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method for selecting random access resources applicable to access network slices, a user equipment, a base station, an electronic device, and a computer-readable storage medium.

Background

3GPP (3 rd Generation Partnership Project) introduced a network slicing Technology in 5G (5 th Generation Mobile Communication Technology, fifth Generation Mobile Communication Technology), and provides differentiated services to users through a sliced quality of service (qos) assurance system.

The 3GPP has standardized work for wireless side slices including defining random access mechanisms based on access network slices. For the initial band Part (BWP), when Slice specific Random Access (Slice specific RA) resources are configured, common Random Access (Common RA) resources are configured at the same time.

However, the existing solution does not define a specific resource isolation method, a random access resource selection mechanism and a signaling indication. Therefore, a random access resource selection scheme for an access network slice needs to be designed.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure.

Disclosure of Invention

The embodiment of the disclosure provides a random access resource selection method for an access network slice, user equipment, a base station, electronic equipment and a computer-readable storage medium, which can provide appropriate random access resources for the user equipment.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows, or in part will be obvious from the description, or may be learned by practice of the disclosure.

According to an aspect of the present disclosure, there is provided a method for random access resource selection of an access network slice, the method being performed by a user equipment, comprising: 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 the related parameters of the user equipment; wherein the target random access resource is selected according to any one of the following modes: firstly, selecting the exclusive random access resource of the slice and the public random access resource, and then selecting 2-step random access resources or 4-step random access resources as the target random access resources from the selected random access resources; firstly, selecting from the 2-step random access resources and the 4-step random access resources, and then selecting slice dedicated random access resources or public random access resources as the target random access resources from the selected random access resources; and selecting the target random access resource from 2-step random access resources exclusive to the slice, 4-step random access resources exclusive to the slice, 2-step random access resources in public and 4-step random access resources in public.

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 received power threshold, a slice-specific message A reference signal received power threshold.

In one embodiment of the present disclosure, the related parameters include at least one of the following options: single network slice selection assistance information, slice groups, reference signal received power measurements.

In one embodiment of the present disclosure, the slice group is determined according to any one of the following manners: the core network informs the relation between the single network slice selection auxiliary information and the slice groups to the user equipment through non-access network signaling; using slice/service type as slice group; user access control is used as a slice group.

In an embodiment of the present disclosure, selecting a target random access resource according to the configuration information related to random access and the parameter related to the ue includes: if the relevant parameters of the user equipment only comprise the reference signal received power measurement result, selecting a public random access resource as the target random access resource; and if the relevant parameters of the user equipment comprise slice or slice group information, selecting the exclusive random access resource of the slice as the target random access resource.

In an embodiment of the present disclosure, selecting a target random access resource according to the configuration information related to random access and the parameter related to the ue includes: if the reference signal received power measurement result of the user equipment is greater than or equal to a message A reference signal received power threshold or a slice dedicated message A reference signal received power threshold in the random access related configuration information, selecting 2-step random access resources as the target random access resources; and if the reference signal received power measurement result of the user equipment is less than or equal to a message A reference signal received power threshold or a slice dedicated message A reference signal received power threshold in the random access related configuration information, selecting 4 steps of random access resources as the target random access resources.

In an embodiment of the present disclosure, selecting a target random access resource according to the configuration information related to random access and the parameter related to the ue includes: and if the random access resource corresponding to the slice related parameter of the user equipment comprises a slice-specific 2-step random access resource and the reference signal received power measurement result of the user equipment is greater than or equal to a message A reference signal received power threshold or a slice-specific message A reference signal received power threshold in the random access related configuration information, selecting the slice-specific 2-step random access resource as the target random access resource from the slice-specific random access resources corresponding to the slice related parameter of the user equipment.

In an embodiment of the present disclosure, selecting a target random access resource according to the configuration information related to random access and the parameter related to the ue includes: and if the random access resource corresponding to the slice related parameter of the user equipment comprises a slice-specific 2-step random access resource and the reference signal received power measurement result of the user equipment is less than or equal to a message A reference signal received power threshold or a slice-specific message A reference signal received power threshold in the random access related configuration information, selecting a common 2-step random access resource or a common 4-step random access resource as the target random access resource from common random access resources corresponding to the slice related parameter of the user equipment.

In an embodiment of the present disclosure, selecting a target random access resource according to the configuration information related to random access and the parameter related to the ue includes: and if the random access resource corresponding to the slice related parameter of the user equipment comprises a slice-specific 2-step random access resource and the reference signal received power measurement result of the user equipment is less than or equal to a message A reference signal received power threshold or a slice-specific message A reference signal received power threshold in the random access related configuration information, selecting the target random access resource from other random access resources according to a preset rule.

In an embodiment of the present disclosure, selecting a target random access resource according to the configuration information related to random access and the parameter related to the ue includes: if the random access resource corresponding to the slice-related parameter of the user equipment includes at least one slice-specific 4-step random access resource and at least one slice-specific 2-step random access resource, or if the random access resource corresponding to the slice-related parameter of the user equipment includes at least one slice-specific 4-step random access resource, selecting the slice-specific 4-step random access resource as the target random access resource when the reference signal received power measurement result of the user equipment is less than or equal to a message a reference signal received power threshold or a slice-specific message a reference signal received power threshold in the random access-related configuration information.

In one embodiment of the present disclosure, the configuration information related to random access further includes: a slice-specific reference signal received power threshold.

In an embodiment of the present disclosure, selecting a target random access resource according to the configuration information related to random access and the parameter related to the ue includes: if the random access resource corresponding to the slice related parameter of the user equipment comprises a plurality of available slice-specific 4-step random access resources, selecting a random access resource of which the reference signal received power measurement result of the user equipment is greater than or equal to a slice-specific reference signal received power threshold in the random access related configuration information from the plurality of available slice-specific 4-step random access resources, and then selecting a slice-specific 4-step random access resource with the highest threshold value from the selected random access resources as the target random access resource.

In an embodiment of the present disclosure, selecting a target random access resource according to the configuration information related to random access and the parameter related to the ue includes: if the random access resource corresponding to the slice related parameter of the user equipment comprises a plurality of available slice dedicated random access resources, selecting a slice dedicated 2-step random access resource of which the reference signal received power measurement result of the user equipment is greater than or equal to a message A reference signal received power threshold in the random access related configuration information from the plurality of available slice dedicated random access resources, and/or selecting a slice dedicated 2-step random access resource of which the threshold value is the highest from the selected slice dedicated 2-step random access resources.

According to another aspect of the present disclosure, there is provided a random access resource selection method for an access network slice, the method being performed by a base station, comprising: sending random access related configuration information to user equipment through broadcasting so that the user equipment can select 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: firstly, selecting the exclusive random access resource of the slice and the public random access resource, and then selecting 2-step random access resources or 4-step random access resources as the target random access resources from the selected random access resources; firstly, selecting from the 2-step random access resources and the 4-step random access resources, and then selecting slice dedicated random access resources or public random access resources as the target random access resources from the selected random access resources; and selecting the target random access resource from 2-step random access resources exclusive to the slice, 4-step random access resources exclusive to the slice, 2-step random access resources in public and 4-step random access resources in public.

In an embodiment of the present disclosure, the random access related configuration information further includes: a slice-specific reference signal received power threshold.

According to yet another aspect of the present disclosure, there is provided a user equipment including: the information monitoring unit is used for monitoring the random access related configuration information in the base station broadcast system information; a resource selecting unit, configured to select a target random access resource according to the random access related configuration information and the related parameter of the user equipment; wherein the target random access resource is selected in any one of the following ways: firstly, selecting the exclusive random access resource of the slice and the public random access resource, and then selecting 2-step random access resources or 4-step random access resources as the target random access resources from the selected random access resources; firstly, selecting from the 2-step random access resources and the 4-step random access resources, and then selecting slice dedicated random access resources or common random access resources as the target random access resources from the selected random access resources; and selecting the target random access resource from 2-step random access resources exclusive to the slice, 4-step random access resources exclusive to the slice, 2-step random access resources in public and 4-step random access resources in public.

According to still another aspect of the present disclosure, there is provided a base station including: an information broadcasting unit, configured to send random access related configuration information to a user equipment through broadcasting, so that the user equipment selects 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: firstly, selecting the exclusive random access resource of the slice and the public random access resource, and then selecting 2-step random access resources or 4-step random access resources as the target random access resources from the selected random access resources; firstly, selecting from the 2-step random access resources and the 4-step random access resources, and then selecting slice dedicated random access resources or public random access resources as the target random access resources from the selected random access resources; and selecting the target random access resource from 2-step random access resources exclusive to the slice, 4-step random access resources exclusive to the slice, 2-step random access resources in public and 4-step random access resources in public.

According to yet another aspect of the present disclosure, there is provided a computer readable storage medium, having stored thereon a computer program which, when executed by a processor, implements the method of random access resource selection of an access network slice as described in the above embodiments.

According to still another aspect of the present disclosure, there is provided an electronic device including: one or more processors; a storage configured to store one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the method of random access resource selection for an access network slice as described in the embodiments above.

In some technical solutions provided by embodiments of the present disclosure, a user equipment monitors random access configuration related information in a base station broadcast system message, and then may select a target random access resource according to the monitored random access configuration related information and related parameters of the user equipment, so as to perform random access by using the selected target random access resource. The target random access resource is selected according to any one of the following modes: firstly, selecting slice dedicated random access resources and public random access resources, and then selecting 2-step random access resources or 4-step random access resources as target random access resources from the selected random access resources; firstly, selecting from the 2-step random access resources and the 4-step random access resources, and then selecting slice dedicated random access resources or public random access resources as target random access resources from the selected random access resources; selecting target random access resources from 2-step random access resources exclusive to slices, 4-step random access resources exclusive to slices, 2-step random access resources in public and 4-step random access resources in public. Therefore, the technical scheme provided by the disclosure provides a selection scheme of various random access resources, can provide appropriate random access resources for user equipment, and meets the isolation requirement of access network slice random access resources.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It should be apparent that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived by those of ordinary skill in the art without inventive effort.

Fig. 1 schematically shows a flow diagram of a method of random access resource selection of an access network slice according to an embodiment of the present disclosure;

fig. 2 schematically shows a flow diagram of a method of random access resource selection of an access network slice according to another embodiment of the present disclosure;

fig. 3 schematically shows a flow diagram of a method of random access resource selection of an access network slice according to a further embodiment of the present disclosure;

fig. 4 schematically shows a block diagram of a user equipment according to an embodiment of the present disclosure;

fig. 5 schematically shows a block diagram of a base station according to an embodiment of the present disclosure;

fig. 6 schematically shows a block diagram of an electronic device according to an embodiment of the present disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different 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 thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the disclosure.

The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.

The flowcharts shown in the figures are illustrative only and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.

In particular, the processes described below with reference to the flowcharts may be implemented as computer software programs, according to embodiments of the present disclosure. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable storage medium, the computer program containing program code for performing the method illustrated by the flow chart.

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 two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an Erasable Programmable Read-Only Memory (EPROM) or flash Memory), an optical fiber, a portable compact disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In contrast, in the present disclosure, a computer-readable signal medium may include a propagated data signal with computer-readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable storage medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF (Radio Frequency), etc., or any suitable combination of the foregoing.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of methods, apparatus, and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units described in the embodiments of the present disclosure may be implemented by software, or may be implemented by hardware, and the described units may also be disposed in a processor. Wherein the names of the elements do not in some way constitute a limitation on the elements themselves.

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 embodiments; or may be separate and not incorporated into the electronic device. The computer-readable storage medium carries one or more programs which, when executed by an electronic device, cause the electronic device to implement the method as described in the embodiments below. For example, the electronic device may implement the steps shown in fig. 1, 2 or 3.

Fig. 1 schematically shows a flowchart of a random access resource selection method of an access network slice according to an embodiment of the present disclosure. The method provided in the embodiment of fig. 1 may be performed by a User Equipment (UE).

As shown in fig. 1, a method provided by the embodiment of the present disclosure may include the following steps.

In step S110, the random access related configuration information in the base station broadcast system message is monitored.

Wherein, the random access related configuration information broadcasted by the base station may include at least one of the following options: a message A reference signal received power Threshold MsgA-RSRP-Threshold, a Slice-specific message A reference signal received power Threshold Slice MsgA-RSRP-Threshold.

MsgA-RSRP-Threshold is a Reference Signal Received Power Threshold (RSRP) used for 2-step Random Access (2-step RA) and 4-step Random Access (4-step RA) selection. MsgA-RSRP-Threshold is used when selecting between 2-step RA and 4-step RA when the UE uses Common RA resources. In order to meet the isolation requirement of the access network Slice random access resource, the random access related configuration information may further include Slice MsgA-RSRP-Threshold. When the UE uses Slice specific RA resources, selection between 2-step RA and 4-step RA can be made through Slice MsgA-RSRP-Threshold.

It should be noted that MsgA-RSRP-Threshold is used when selecting between 2-step RA and 4-step RA for the UE using Common RA. If Slice MsgA-RSRP-Threshold is not defined and selection between 2-step RA and 4-step RA is required, selection can be performed along with past common cell configuration MsgA-RSRP-Threshold, which can reduce the amount of broadcast channel broadcast Slice specific RA resource configuration, i.e., reduce signaling overhead.

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

Wherein the related 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. In an exemplary embodiment, the slice group may be determined by any one of the following: (1) The core network informs the UE of the relation between the S-NSSAI and the slice group through non-access Network (NAS) signaling; (2) Using a Slice/Service type (Slice/Service type, abbreviated as SST) as a Slice group; (3) As the slice group, a user Access Control (UE Access Control, abbreviated as UAC) is used.

In practical applications, the UE may determine an expected slice or a set of slices or an Access Category according to a service initiated by the terminal itself, and then select a random Access resource for slice Access. Wherein the slice is a slice in the network slice and has a slice ID; the slice group is a slice group formed by converging a plurality of slices with relatively close network requirements, and one slice group comprises one or more slices; the Access Category is a unified Access control Access Category, i.e. the UAC Access Category is defined by the 3GPP official. For example, 5GC (5G core,5G core network)/OAM (Operation Administration and Maintenance) configures mapping relationship between Access Category and S-NSSAI to UE through NAS message, and the base station broadcasts Physical Random Access Channel (PRACH) for which Access Category the Physical Random Access Channel (PRACH) is configured.

In addition, the number of the desired slices or slice groups or Access categories of the UE may be multiple, the desired slices or slice groups or Access categories of the UE may be sorted according to a preset slice selection rule, such as a priority order of Access network slices, and the slice or slice group or Access Category with the highest priority is selected as the desired Access network slice. And when the random Access resource corresponding to the appropriate expected Access network slice cannot be selected, a slice or a slice group or an Access Category with low priority can be selected, namely, a new expected Access network slice, and then slice Access can be performed through the random Access resource corresponding to the new expected Access network slice. This part will be described in detail below, and will not be described again here.

And, the target random access resource may be selected in any one of the following ways: firstly, selecting Slice specific RA resources and Common RA resources, and then selecting 2-step RA resources or 4-step RA resources as target random access resources from the selected random access resources; selecting the 2-step RA resource and the 4-step RA resource, and then selecting the Slice specific RA resource or Common RA resource as a target random access resource from the selected random access resources; and selecting a target Random Access resource from Slice-specific 2-step Random Access (Slice-specific 2-step RA) resources, slice-specific 4-step Random Access (Slice-specific 4-step RA) resources, common 2-step Random Access (Common 2-step RA) resources, and Common 4-step Random Access (Common 4-step RA) resources.

The first method is to determine whether the target random access resource is Slice specific RA resource or Common RA resource, and then select between 2-step RA resource and 4-step RA resource.

In an exemplary embodiment, selecting the target random access resource according to the random access related configuration information and the UE related parameter may include: if the relevant parameters of the UE only comprise a reference signal received power measurement result, selecting Common RA resources as target random access resources; and if the related parameters of the UE comprise the Slice or Slice group information, selecting Slice specific RA resources as target random access resources.

If the relevant parameters of the UE include only the reference information received power measurement result, which indicates that the relevant parameters of the UE do not include slice and slice group information, the UE may be considered to use the common random access. Therefore, in the process of selecting the target random access resource, the Common RA resource may be determined as the target random access resource, and then the selection may be performed between the Common 2-step RA resource and the Common 4-step RA resource. Conversely, if slice or slice group information is included in the relevant parameters of the UE, the UE may be considered to be able to use slice-specific random access. Therefore, in the process of selecting the target random access resource, the Slice specific RA resource can be determined as the target random access resource, and then the selection is performed between the Slice specific 2-step RA resource and the Slice specific 4-step RA resource.

The second method is to determine the target random access resource is a step RA resource and a 4-step RA resource, and then select Common RA resource in Slice specific RA resource.

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

That is, if the reference signal received power measurement result of the UE is greater than or equal to MsgA-RSRP-Threshold or the reference signal received power measurement result of the UE is greater than or equal to Slice MsgA-RSRP-Threshold, in the process of selecting the target random access resource, the 2-step RA resource may be determined as the target random access resource first, and then, the selection may be performed between the Common 2-step RA resource and the Slice specific 2-step RA resource. On the contrary, if the reference signal received power measurement result of the UE is less than or equal to MsgA-RSRP-Threshold or the reference signal received power measurement result of the UE is less than or equal to Slice MsgA-RSRP-Threshold, in the process of selecting the target random access resource, the 4-step RA resource may be determined as the target random access resource first, and then the selection may be performed between the Common 4-step RA resource and the Slice specific 4-step RA resource.

And selecting the Slice specific 2-step RA resource, the Slice specific 4-step RA resource, the Common 2-step RA resource and the Common 4-step RA resource to obtain the target random access resource.

The technical scheme provided by the disclosure provides a selection scheme of various random access resources, can provide proper random access resources for UE, and meets the isolation requirement of access network slice random access resources. In addition, in the method for selecting random access resources of the access network slice provided by the disclosure, soft isolation and hard isolation of the resources can be realized through configuration of the resources, and a technical scheme for selecting among a plurality of available slice resources is also provided.

Soft isolation of (a) resources

In an exemplary embodiment, selecting the target random access resource according to the random access related configuration information and the UE related parameter may include: and if the random access resource corresponding to the Slice-related parameter of the UE comprises Slice specific 2-step RA resource and the reference signal received power measurement result of the UE is greater than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access-related configuration information, selecting Slice specific 2-step RA resource as target random access resource from the Slice-specific random access resource corresponding to the Slice-related parameter of the UE.

The slice-related parameter of the UE is an expected slice or a slice group or an Access Category determined by the UE according to the service initiated by the terminal, or the slice-related parameter of the UE can be understood as an expected Access network slice corresponding to the UE. Correspondingly, the random Access resource corresponding to the slice-related parameter is a random Access resource configured for a desired slice or a group of slices or Access Category.

If Slice specific 2-step RA resources are configured in the random Access resources configured by the expected Slice or Slice group of the UE or the Access Category, and the reference signal received power measurement result of the UE is greater than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold, then the Slice specific 2-step RA resources are selected as target random Access resources in the random Access resources configured by the expected Slice or Slice group of the UE or the Access Category.

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

If Slice specific 2-step RA resources are configured in the desired Slice or Slice group of the UE or random Access resources configured by the Access Category, but the reference signal received power measurement result of the UE is less than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold, then Common 2-step RA resources or Common 4-step RA resources are selected as target random Access resources in Common RA resources corresponding to the desired Slice or Slice group of the UE or the Access Category. In this case, since the Slice specific 4-step RA resource may not be configured in the desired Slice or Slice group of the UE or the random Access resource configured by the Access Category, it is necessary to select a target random Access resource from the Common 2-step RA resource or the Common 4-step RA resource.

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

It has been explained above that the number of the desired slices or slice groups or Access categories of the UE may be multiple, and in practical applications, the desired slices or slice groups or Access categories of the UE may be sorted according to a preset slice selection rule, such as a priority order of the slices or slice groups or Access categories, and a slice or slice group or Access Category with the highest priority is selected. And when the appropriate expected slice or slice group or the random Access resource corresponding to the Access Category cannot be selected, the slice or slice group or the Access Category with the low priority can be selected, and further slice Access can be performed through the new expected slice or slice group or the random Access resource corresponding to the Access Category.

Therefore, if Slice specific 2-step RA resources are configured in the desired Slice or Slice group of the UE or the random Access resources configured by the Access Category, but the reference signal received power measurement result of the UE is less than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold, the UE may determine a new desired Slice or Slice group or Access Category according to a preset Slice selection rule, and then select a target random Access resource in the new desired Slice or Slice group or the random Access resources configured by the Access Category. Wherein the priority of the desired slice or group of slices or Access Category is higher than the priority of the new desired slice or group of slices or Access Category. In addition, if there are a plurality of desired slices or slice groups of low priority or Access Category, the selection may be performed in the order of increasing slice IDs, or may be performed in another manner, which is not limited.

In summary, in the embodiment of the present disclosure, by configuring the Slice specific RA resource and the Common RA resource, the soft isolation of the resources is achieved.

Hard isolation of (II) resources

In an exemplary embodiment, selecting the target random access resource according to the random access related configuration information and the UE related parameter may include: if the random access resource corresponding to the Slice-related parameter of the UE comprises at least one Slice specific 4-step RA resource and at least one Slice specific 2-step RA resource, or if the random access resource corresponding to the Slice-related parameter of the UE comprises at least one Slice specific 4-step RA resource, selecting the Slice specific 4-step RA resource as the target random access resource when the reference signal received power measurement result of the UE is less than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access-related configuration information.

That is, if at least one Slice specific 4-step RA resource and at least one Slice specific 2-step RA resource are configured in the random Access resource configured by the desired Slice or Slice group of the UE or the Access Category, and the reference signal received power measurement result of the UE is less than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random Access related configuration information, the Slice specific 4-step RA resource may be selected as the target random Access resource. In addition, in this case, since the Slice specific 2-step RA resource is configured, if the reference signal received power measurement result of the UE is greater than or equal to or greater than MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access related configuration information, the Slice specific 2-step RA resource may be selected as the target random access resource.

If at least one Slice specific 4-step RA resource and no Slice specific 2-step RA resource are configured in the desired Slice or Slice group of the UE or the random Access resource configured by the Access Category, and the reference signal received power measurement result of the UE is less than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random Access related configuration information, the Slice specific 4-step RA resource may be selected as the target random Access resource.

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

In the exemplary embodiment of the disclosure, soft and hard isolation of the random access resource is realized through different configuration modes of the Slice specific RA resource and the Common RA resource, the random access resource can be flexibly configured, fragmentation of the random access resource is effectively reduced, different requirements of an operator and a client on isolation of the random access resource are met, the resource utilization efficiency is improved, and the operator can divide and configure the random access resource more reasonably and efficiently according to the requirements.

(III) selecting among a plurality of available slice resources

The random access related configuration information sent by the base station may include, in addition to MsgA-RSRP-Threshold and Slice MsgA-RSRP-Threshold: a Slice-specific reference signal received power Threshold Slice RSRP-Threshold. Slice RSRP-Threshold may be used to perform Slice specific 4-step RA resource selection.

In an exemplary embodiment, selecting the target random access resource according to the random access related configuration information and the UE related parameter may include: if the random access resource corresponding to the Slice related parameter of the UE comprises a plurality of available Slice specific 4-step RA resources, selecting the random access resource of which the reference signal received power measurement result of the UE is greater than or equal to Slice RSRP-Threshold in the random access related configuration information from the plurality of available Slice specific 4-step RA resources, and then selecting the Slice specific 4-step RA resource with the highest Threshold value from the selected random access resources as the target random access resource.

If a plurality of available Slice specific 4-step RA resources are configured in the random Access resources configured by the desired Slice or Slice group of the UE or the Access Category, selecting a random Access resource (i.e. Slice specific 4-step RA resource) of which the reference signal received power measurement result of the UE is greater than or equal to Slice RSRP-Threshold from the plurality of available Slice specific 4-step RA resources, and then selecting the Slice specific 4-step RA resource with the highest Threshold value from the selected random Access resources as the target random Access resource.

In an exemplary embodiment, selecting the target random access resource according to the random access related configuration information and the UE related parameter may include: if the random access resource corresponding to the Slice-related parameter of the UE comprises a plurality of available Slice specific RA resources, selecting a Slice specific 2-step RA resource of which the 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 the Slice MsgA-RSRP-Threshold in the random access-related configuration information from the plurality of available Slice specific RA resources, and then selecting the Slice specific 2-step RA resource with the highest Threshold as a target random access resource from the selected Slice specific 2-step RA resources.

If a plurality of available Slice specific RA resources are configured in the desired Slice or Slice group of the UE or the random Access resource configured by the Access Category, then a Slice specific 2-step RA resource with a reference signal received power measurement result of the UE being greater than or equal to MsgA-RSRP-Threshold is selected from the plurality of available Slice specific RA resources, and then the Slice specific 2-step RA resource with the highest Threshold value is selected as the target random Access resource from the selected Slice specific 2-step RA resources.

If a plurality of available Slice specific RA resources are configured in the desired Slice or Slice group of the UE or the random Access resource configured by the Access Category, then a Slice specific 2-step RA resource with a reference signal received power measurement result of the UE being greater than or equal to Slice MsgA-RSRP-Threshold is selected from the plurality of available Slice specific RA resources, and then the Slice specific 2-step RA resource with the highest Threshold value is selected as the target random Access resource from the selected Slice specific 2-step RA resources.

Also, if a desired Slice or group of slices of the UE or a random Access resource configured by the Access Category is configured with a plurality of available Slice specific RA resources, a Slice specific 2-step RA resource with a reference signal received power measurement result of the UE being greater than or equal to MsgA-RSRP-Threshold and Slice MsgA-RSRP-Threshold is selected among the plurality of available Slice specific RA resources, and then the Slice specific 2-step RA resource with the highest Threshold value among the selected Slice specific 2-step RA resources is selected as the target random Access resource.

It should be noted that, as already explained in step S110 above, msgA-RSRP-Threshold is used when selecting between 2-step RA and 4-step RA when Common RA is used by the UE; and when the UE uses the Slice specific RA resource, selection between the 2-step RA and the 4-step RA can be performed through Slice MsgA-RSRP-Threshold. Thus, generally, if Slice MsgA-RSRP-Threshold is defined, then Slice MsgA-RSRP-Threshold is preferentially used for selection. And if Slice MsgA-RSRP-Threshold is not defined and selection between 2-step RA and 4-step RA is required, msgA-RSRP-Threshold can be used for selection, so that the Slice specific RA resource configuration amount of broadcast channel broadcast can be reduced, that is, the signaling overhead is reduced.

In the exemplary embodiment of the disclosure, if a plurality of available Slice specific RA resources are configured in a random access resource corresponding to a Slice-related parameter of a UE, the UE may select among the plurality of available resources according to a reference signal received power measurement result and random access-related configuration information, may flexibly support different configuration modes of the Slice specific RA resources, support different UEs in the same access network Slice to adopt a plurality of configurations, effectively reduce a random access delay, improve a random access success rate, and better ensure a UE with poor channel conditions in a high-priority access network Slice and a random access of a high-mobility UE.

In addition, in the exemplary embodiment of the present disclosure, the random access related configuration information broadcasted by the base station may include Slice MsgA-RSRP-Threshold and Slice RSRP-Threshold, on one hand, a dedicated configuration based on client/scene/service requirements may be implemented for a high-priority access network Slice by being different from a Common RA resource related configuration, and on the other hand, the above-mentioned cells may not be configured by display, and the Common RA resource related configuration may be used by default, so as to reduce a system message load and meet an isolation requirement of the high-priority access network Slice random access resource.

According to the random access resource selection method for the access network slice provided by the embodiment of the disclosure, the UE monitors the random access configuration related information in the broadcast system message of the base station, and then can select the target random access resource according to the monitored random access configuration related information and the related parameters of the UE, so that the random access can be performed by using the selected target random access resource. Wherein the target random access resource is selected according to any one of the following modes: firstly, selecting Slice specific RA resources and Common RA resources, and then selecting 2-step RA resources or 4-step RA resources as target random access resources from the selected random access resources; firstly, selecting 2-step RA resources and 4-step RA resources, and then selecting Slice specific RA resources or Common RA resources as target random access resources from the selected random access resources; selecting 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. Therefore, the technical scheme provided by the disclosure provides a selection scheme of various random access resources, can provide appropriate random access resources for the UE, and meets the isolation requirement of the random access resources of the access network slice.

Fig. 2 schematically shows a flow diagram of a method for random access resource selection of an access network slice according to another embodiment of the present disclosure. The method provided in the embodiment of fig. 2 may be performed by a base station.

As shown in fig. 2, the method provided by the embodiment of the present disclosure may include the following steps.

Step S210, sending the random access relevant configuration information to the UE through broadcasting, so that the UE can select the target random access resource according to the random access relevant configuration information and the relevant parameters of the UE.

Wherein the target random access resource is selected according to any one of the following modes: firstly, selecting Slice specific RA resources and Common RA resources, and then selecting 2-step RA resources or 4-step RA resources as target random access resources from the selected random access resources; selecting the 2-step RA resource and the 4-step RA resource, and then selecting the Slice specific RA resource or Common RA resource as a target random access resource from the selected random access resources; and thirdly, selecting the target random access resource from the Slice specific 2-step RA resource, the Slice specific 4-step RA resource, the Common 2-step RA resource and the Common 4-step RA resource.

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.

It should be noted that MsgA-RSRP-Threshold is used when selecting between 2-step RA and 4-step RA for the UE using Common RA. And when the UE uses the Slice specific RA resource, selection between the 2-step RA and the 4-step RA can be performed through Slice MsgA-RSRP-Threshold. And if Slice MsgA-RSRP-Threshold is not defined and selection between 2-step RA and 4-step RA is required, msgA-RSRP-Threshold can be used for selection, so that the Slice specific RA resource allocation amount of broadcast channel broadcast, namely the signaling overhead can be reduced.

In an exemplary embodiment, the random access related configuration information broadcasted 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.

The method provided by the embodiment of the present disclosure is illustrated with reference to fig. 3, but the present disclosure is not limited thereto.

The method provided by the embodiment of the disclosure can realize the selection of random access resources, can be applied to the technical field of wireless communication and terminals, and particularly relates to 5G evolution and standardization thereof.

Fig. 3 schematically shows a flow diagram of a method for random access resource selection of an access network slice according to yet another embodiment of the present disclosure.

As shown in fig. 3, the method provided by the embodiment of the present disclosure may include the following steps.

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

Wherein, the random access related configuration information broadcasted by the base station may include at least one of the following options: msgA-RSRP-Threshold, slice MsgA-RSRP-Threshold.

It should be noted that MsgA-RSRP-Threshold is used when selecting between 2-step RA and 4-step RA when Common RA is used by the UE. And when the UE uses the Slice specific RA resource, selection between the 2-step RA and the 4-step RA can be performed through Slice MsgA-RSRP-Threshold. And if Slice MsgA-RSRP-Threshold is not defined and selection between 2-step RA and 4-step RA is required, msgA-RSRP-Threshold can be used for selection, so that the Slice specific RA resource allocation amount of broadcast channel broadcast, namely the signaling overhead can be reduced.

In addition, the random access related configuration information broadcasted 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.

In step S320, the UE selects a target random access resource according to the random access related configuration information broadcasted by the base station and the related parameter of the UE.

Wherein the related parameters of the UE 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 by any one of the following: (1) The core network informs the UE of the relation between the S-NSSAI and the slice group through NAS signaling; (2) use of SST as a slice group; (3) UAC was used as a slice group.

The target random access resource is selected according to any one of the following modes:

firstly, selecting from Slice specific RA resources and Common RA resources, and then selecting 2-step RA resources or 4-step RA resources as target random access resources from the selected random access resources.

The specific implementation may be that, if only the reference signal received power measurement result is included in the relevant parameters of the UE, common RA resource is selected as the target random access resource; and if the related parameters of the UE comprise Slice or Slice group information, selecting Slice specific RA resources as target random access resources.

And secondly, selecting the 2-step RA resource and the 4-step RA resource, and then selecting the Slice specific RA resource or Common RA resource as the target random access resource from the selected random access resources.

The specific implementation can be that if the reference signal received power measurement result of the UE is greater than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access related configuration information, the 2-step RA resource is selected as the target random access resource; and if the reference signal received power measurement result of the UE is less than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access related configuration information, selecting the 4-step RA resource as the target random access resource.

And thirdly, selecting the target random access resource from the Slice specific 2-step RA resource, the Slice specific 4-step RA resource, the Common 2-step RA resource and the Common 4-step RA resource.

In addition, in the method for selecting random access resources of an access network slice provided by the present disclosure, soft isolation and hard isolation of resources may be implemented through configuration of the resources, which has been described in detail above and will not be described here again. It has been explained in detail above that by configuring the Slice specific RA resource and the Common RA resource, soft isolation of the resources is achieved; the configuration of the Slice specific 4-step RA resource and the Slice specific 2-step RA resource realizes the hard isolation of the resources.

In addition, in the method for selecting random access resources of an access network slice provided by the present disclosure, a technical solution for selecting among a plurality of available slice resources is also provided, and how to select among a plurality of available slice resources is also described in detail above, which is not repeated here.

Fig. 4 schematically shows a block diagram of a user equipment according to an embodiment of the present disclosure. As shown in fig. 4, the user equipment 400 provided in the embodiment of the present disclosure may include: an information listening unit 410 and a resource selection unit 420.

The information monitoring unit 410 may be configured to monitor random access related configuration information in a base station broadcast system message; the resource selecting unit 420 may be configured to select a target random access resource according to the random access related configuration information and the UE related parameters. Wherein the target random access resource is selected according to any one of the following modes: firstly, selecting Slice specific RA resources and Common RA resources, and then selecting 2-step RA resources or 4-step RA resources as target random access resources from the selected random access resources; firstly, selecting 2-step RA resources and 4-step RA resources, and then selecting Slice specific RA resources or Common RA resources as target random access resources from the selected random access resources; selecting 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.

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.

In an exemplary embodiment, the related parameter may include at least one of the following information: slice S-NSSAI, slice group, reference signal received power measurement result.

In an exemplary embodiment, the slice group is determined in any one of the following ways: the core network informs the UE of the relation between the S-NSSAI and the slice group through NAS signaling; (2) use of SST as a slice group; (3) UAC was used as the slice group.

In an exemplary embodiment, the resource selection unit 420 may be configured to: if the relevant parameters of the UE only comprise the reference signal received power measurement result, selecting Common RA resources as target random access resources; and if the related parameters of the UE comprise the Slice or Slice group information, selecting Slice specific RA resources as target random access resources.

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

In an exemplary embodiment, the resource selection unit 420 may be configured to: and if the random access resource corresponding to the Slice-related parameter of the UE comprises Slice specific 2-step RA resource and the reference signal received power measurement result of the UE is greater than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access-related configuration information, selecting Slice specific 2-step RA resource as target random access resource from the Slice-specific random access resource corresponding to the Slice-related parameter of the UE.

In an exemplary embodiment, the resource selection unit 420 may be configured to: if the random access resource corresponding to the Slice-related parameter of the UE comprises a Slice specific 2-step RA resource and the reference signal received power measurement result of the UE is less than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access-related configuration information, selecting a Common 2-step RA resource or a Common 4-step RA resource as a target random access resource from Common RA resources corresponding to the Slice-related parameter of the UE.

In an exemplary embodiment, the resource selection unit 420 may be configured to: and if the random access resource corresponding to the Slice related parameter of the UE comprises Slice specific 2-step RA resource and the reference signal received power measurement result of the UE is less than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access related configuration information, selecting the target random access resource from other random access resources according to a preset rule.

In an exemplary embodiment, the resource selection unit 420 may be configured to: if the random access resource corresponding to the Slice-related parameter of the UE comprises at least one Slice specific 4-step RA resource and at least one Slice specific 2-step RA resource, or if the random access resource corresponding to the Slice-related parameter of the UE comprises at least one Slice specific 4-step RA resource, selecting the Slice specific 4-step RA resource as the target random access resource when the reference signal received power measurement result of the UE is less than or equal to MsgA-RSRP-Threshold or Slice MsgA-RSRP-Threshold in the random access-related configuration information.

In an exemplary embodiment, the random access related configuration information may further include: slice RSRP-Threshold.

In an exemplary embodiment, the resource selection unit 420 may be configured to: if the random access resource corresponding to the Slice related parameter of the UE comprises a plurality of available Slice specific 4-step RA resources, selecting the random access resource of which the reference signal received power measurement result of the UE is greater than or equal to Slice RSRP-Threshold in the random access related configuration information from the plurality of available Slice specific 4-step RA resources, and then selecting the Slice specific 4-step RA resource with the highest Threshold value from the selected random access resources as the target random access resource.

In an exemplary embodiment, the resource selection unit 420 may be configured to: if the random access resource corresponding to the Slice-related parameter of the UE comprises a plurality of available Slice specific RA resources, selecting a Slice specific 2-step RA resource of which the 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 Slice MsgA-RSRP-Threshold in the random access-related configuration information from the plurality of available Slice specific RA resources, and then selecting the Slice specific 2-step RA resource with the highest Threshold value from the selected Slice specific 2-step RA resources as a target random access resource.

The specific implementation of each unit in the user equipment provided in the embodiment of the present disclosure may refer to the content in the random access resource selection method for the access network slice, which is not described herein again.

Fig. 5 schematically shows a block diagram of a base station according to an embodiment of the present disclosure. As shown in fig. 5, a base station 500 provided in the embodiment of the present disclosure may include: an information broadcasting unit 510.

The information broadcasting unit 510 may be configured to: and sending the random access related configuration information to the UE through broadcasting so that the UE can select the target random access resource according to the random access related configuration information and the related parameters of the UE.

In an exemplary embodiment, the random access related configuration information broadcasted by the base station may further include: slice RSRP-Threshold.

The specific implementation of each unit in the base station provided in the embodiment of the present disclosure may refer to the content in the method for selecting a random access resource of an access network slice, which is not described herein again.

Referring now to FIG. 6, shown is a schematic diagram of an electronic device suitable for use in implementing embodiments of the present disclosure. The electronic device shown in fig. 6 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present disclosure. The electronic device in fig. 6 may be, for example, a user device and/or a network device, but the present disclosure is not limited thereto.

Referring to fig. 6, an electronic device provided in an embodiment of the present disclosure may include: a processor 101, a communication interface 102, a memory 103, and a communication bus 104.

Wherein the processor 101, the communication interface 102 and the memory 103 are in communication with each other via a communication bus 104.

Alternatively, the communication interface 102 may be an interface of a communication module, such as an interface of a GSM (Global System for Mobile communications) module. The processor 101 is used to execute programs. The memory 103 is used for storing programs. The program may comprise a computer program comprising computer operating instructions.

The processor 101 may be a central processing unit CPU, or an Application Specific Integrated Circuit ASIC (Application Specific Integrated Circuit), or one or more Integrated circuits configured to implement embodiments of the present disclosure.

The memory 103 may include a Random Access Memory (RAM) memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

Among them, the procedure can be specifically used for: 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 the related parameters of the UE; wherein the target random access resource is selected according to any one of the following modes: firstly, selecting Slice specific RA resources and Common RA resources, and then selecting 2-step RA resources or 4-step RA resources as target random access resources from the selected random access resources; firstly, selecting 2-step RA resources and 4-step RA resources, and then selecting Slice specific RA resources or Common RA resources as target random access resources from the selected random access resources; selecting 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.

Alternatively, the program may be specifically for: sending random access related configuration information to the UE through broadcasting so that the UE can select target random access resources according to the random access related configuration information and related parameters of the UE; wherein the target random access resource is selected according to any one of the following modes: firstly, selecting Slice specific RA resources and Common RA resources, and then selecting 2-step RA resources or 4-step RA resources as target random access resources from the selected random access resources; firstly, selecting 2-step RA resources and 4-step RA resources, and then selecting Slice specific RA resources or Common RA resources as target random access resources from the selected random access resources; selecting a target random access resource from a Slice specific 2-step RA resource, a Slice specific 4-step RA resource, a Common 2-step RA resource, and a Common 4-step RA resource.

It should be noted that although in the above detailed description several units of the device for action execution are mentioned, this division is not mandatory. Indeed, the features and functions of two or more units described above may be embodied in one unit, in accordance with embodiments of the present disclosure. Conversely, the features and functions of one unit described above may be further divided into embodiments by a plurality of units.

Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a touch terminal, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements 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 method for random access resource selection of an access network slice, the method being performed by a user equipment and comprising:

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 the related parameters of the user equipment; wherein, the first and the second end of the pipe are connected with each other,

firstly, selecting slice dedicated random access resources and public random access resources, and then selecting 2-step random access resources or 4-step random access resources as the target random access resources from the selected random access resources;

firstly, selecting from the 2-step random access resources and the 4-step random access resources, and then selecting slice dedicated random access resources or public random access resources as the target random access resources from the selected random access resources;

and selecting the target random access resource from 2 steps of random access resources exclusive to the slice, 4 steps of random access resources exclusive to the slice, 2 steps of random access resources in public and 4 steps of random access resources in public.

2. The method according to claim 1, wherein the random access related configuration information comprises at least one of the following options: a message A reference signal received power threshold, a slice specific message A reference signal received power threshold.

3. The method of claim 1, wherein the related parameters comprise at least one of the following options: single network slice selection assistance information, slice groups, reference signal received power measurements.

4. The method of claim 3, wherein the slice group is determined in any one of the following ways: the core network informs the relation between the single network slice selection auxiliary information and the slice groups to the user equipment through non-access network signaling; using the slice/service type as a slice group; user access control is used as a slice group.

5. The method according to claim 1, wherein selecting a target random access resource according to the random access related configuration information and the parameter related to the ue comprises:

if the relevant parameters of the user equipment only comprise the reference signal received power measurement result, selecting a public random access resource as the target random access resource;

and if the related parameters of the user equipment comprise slice or slice group information, selecting the exclusive random access resource of the slice as the target random access resource.

6. The method of claim 1, wherein selecting a target random access resource according to the random access related configuration information and the parameter related to the UE comprises:

if the reference signal received power measurement result of the user equipment is greater than or equal to a message A reference signal received power threshold or a slice dedicated message A reference signal received power threshold in the random access related configuration information, selecting 2-step random access resources as the target random access resources;

and if the reference signal received power measurement result of the user equipment is less than or equal to the message A reference signal received power threshold or the slice dedicated message A reference signal received power threshold in the random access related configuration information, selecting 4-step random access resources as the target random access resources.

7. The method of claim 1, wherein selecting a target random access resource according to the random access related configuration information and the parameter related to the UE comprises:

and if the random access resource corresponding to the slice related parameter of the user equipment comprises a slice exclusive 2-step random access resource and the reference signal received power measurement result of the user equipment is greater than or equal to a message A reference signal received power threshold or a slice exclusive message A reference signal received power threshold in the random access related configuration information, selecting the slice exclusive 2-step random access resource as the target random access resource from the slice exclusive random access resource corresponding to the slice related parameter of the user equipment.

8. The method of claim 1, wherein selecting a target random access resource according to the random access related configuration information and the parameter related to the UE comprises:

and if the random access resource corresponding to the slice related parameter of the user equipment comprises a slice-specific 2-step random access resource and the reference signal received power measurement result of the user equipment is less than or equal to a message A reference signal received power threshold or a slice-specific message A reference signal received power threshold in the random access related configuration information, selecting a common 2-step random access resource or a common 4-step random access resource as the target random access resource from common random access resources corresponding to the slice related parameter of the user equipment.

9. The method of claim 1, wherein selecting a target random access resource according to the random access related configuration information and the parameter related to the UE comprises:

and if the random access resource corresponding to the slice related parameter of the user equipment comprises a slice-specific 2-step random access resource and the reference signal received power measurement result of the user equipment is less than or equal to a message A reference signal received power threshold or a slice-specific message A reference signal received power threshold in the random access related configuration information, selecting the target random access resource from other random access resources according to a preset rule.

10. The method according to claim 1, wherein selecting a target random access resource according to the random access related configuration information and the parameter related to the ue comprises:

if the random access resource corresponding to the slice-related parameter of the user equipment includes at least one slice-specific 4-step random access resource and at least one slice-specific 2-step random access resource, or if the random access resource corresponding to the slice-related parameter of the user equipment includes at least one slice-specific 4-step random access resource, selecting a slice-specific 4-step random access resource as the target random access resource when the reference signal received power measurement result of the user equipment is less than or equal to a message a reference signal received power threshold or a slice-specific message a reference signal received power threshold in the random access-related configuration information.

11. The method of claim 1, wherein the random access related configuration information further comprises: a slice-specific reference signal received power threshold.

12. The method according to claim 11, wherein selecting a target random access resource according to the random access related configuration information and the parameter related to the ue comprises:

if the random access resource corresponding to the slice-related parameter of the user equipment comprises a plurality of available slice-specific 4-step random access resources, selecting a random access resource of which the reference signal received power measurement result of the user equipment is greater than or equal to a slice-specific reference signal received power threshold in the random access-related configuration information from the plurality of available slice-specific 4-step random access resources, and then selecting a slice-specific 4-step random access resource with the highest threshold value from the selected random access resources as the target random access resource.

13. The method of claim 1, wherein selecting a target random access resource according to the random access related configuration information and the parameter related to the UE comprises:

if the random access resource corresponding to the slice related parameter of the user equipment comprises a plurality of available slice dedicated random access resources, selecting a slice dedicated 2-step random access resource of which the reference signal received power measurement result of the user equipment is greater than or equal to a message A reference signal received power threshold in the random access related configuration information from the plurality of available slice dedicated random access resources, and/or selecting a slice dedicated 2-step random access resource of which the threshold value is the highest from the selected slice dedicated 2-step random access resources.

14. A method for random access resource selection of an access network slice, the method being performed by a base station and comprising:

sending random access related configuration information to user equipment through broadcasting so that the user equipment can select target random access resources according to the random access related configuration information and related parameters of the user equipment; wherein the content of the first and second substances,

and selecting the target random access resource from 2-step random access resources exclusive to the slice, 4-step random access resources exclusive to the slice, 2-step random access resources in public and 4-step random access resources in public.

15. The method according to claim 14, wherein the random access related configuration information comprises at least one of the following options: a message A reference signal received power threshold, a slice specific message A reference signal received power threshold.

16. The method of claim 14, wherein the random access related configuration information further comprises: a slice-specific reference signal received power threshold.

17. A user device, comprising:

the information monitoring unit is used for monitoring the random access related configuration information in the base station broadcast system information;

a resource selecting unit, configured to select a target random access resource according to the random access related configuration information and the related parameter of the user equipment; wherein the content of the first and second substances,

18. A base station, comprising:

an information broadcasting unit, configured to send random access related configuration information to a user equipment through broadcasting, so that the user equipment selects a target random access resource according to the random access related configuration information and related parameters of the user equipment; wherein the content of the first and second substances,

firstly, selecting the exclusive random access resource of the slice and the public random access resource, and then selecting 2-step random access resources or 4-step random access resources as the target random access resources from the selected random access resources;

firstly, selecting from the 2-step random access resources and the 4-step random access resources, and then selecting slice dedicated random access resources or common random access resources as the target random access resources from the selected random access resources;

19. An electronic device, comprising:

one or more processors;

a storage device configured to store one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the method of any of claims 1 to 13 or the method of any of claims 14 to 16.

20. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method of any one of claims 1 to 14 or the method of any one of claims 14 to 16.