Isolation Method, Device, and Program for Random Access Resources of Access Network Slices

Abstract

The embodiments of the present disclosure provide a method, device and medium for isolating random access resources of an access network slice, and relate to the field of communication technology. The method includes: a terminal device receives random access configuration information sent by a network device, the random access configuration information including information indicating that the random access resources are used for slice-dedicated random access and / or common random access. The random access configuration information indicates a relationship between the random access resources and slices / slice groups / common random access, and provides a better random access resource configuration for the access network slice.

Description

Cross-reference to Related Applications

[0001] This disclosure claims priority to a Chinese patent application filed on August 5, 2021, with application number 202110898462.X and title "Method, Device, and Medium for Isolating Random Access Resources of an Access Network Slice", and all contents of the Chinese patent application are incorporated herein by reference in their entirety.

Technical Field

[0002] This disclosure relates to the field of communication technologies, and more specifically, to a method for isolating random access resources of an access network slice, a network device, a terminal device, an electronic device, and a computer-readable medium.

Background Art

[0003] 5G network slices can provide differentiated services for users with different service requirements and meet the needs of advanced differentiated 5G vertical application scenarios.

[0004] Currently, standardization work is being carried out on slices on the RAN (Radio Access Network) side, including the definition of a RA (Random Access) mechanism based on slices on the RAN side. To define the random access mechanism for slices on the RAN side, it is necessary to configure slice-specific random access resources and common random access resources.

[0005] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and may include information that does not constitute prior art known to those skilled in the art.

Summary of the Invention

[0006] An object of embodiments of the present disclosure is to provide a method for isolating random access resources of an access network slice, a network device, a terminal device, an electronic device, and a computer-readable medium.

[0007] Other features and advantages of the present disclosure will become apparent from the following detailed description or will be partially acquired by practicing the present disclosure.

[0008] A first aspect of embodiments of the present disclosure provides a method for isolating random access resources of an access network slice, including a terminal device receiving random access configuration information transmitted by a network device, where the random access configuration information includes information indicating that the random access resources are used for slice-specific random access and / or common random access.

[0018] A second aspect of embodiments of the present disclosure provides a method for isolating random access resources of an access network slice, including a network device transmitting random access configuration information, where the random access configuration information is configuration information of random access resources of at least one cell, and the random access configuration information includes information indicating that the random access resources are used for slice-specific random access resources and / or common random access resources.

[0028] A third aspect of embodiments of the present disclosure provides a terminal device including a receiving module, where the receiving module is configured to receive random access configuration information transmitted by a network device, the random access configuration information is configuration information of random access resources of a cell where the terminal device is located, and the random access configuration information includes information indicating that the random access resources are used for slice-specific random access resources and / or common random access resources.

[0038] A fourth aspect of an embodiment of the present disclosure provides a network device including a configuration information transmission module, the configuration information transmission module being configured to transmit random access configuration information, the random access configuration information being configuration information of random access resources of at least one cell, and the random access configuration information including information indicating that the random access resources are used as slice-specific random access resources and / or common random access resources.

[0048] According to a fifth aspect of an embodiment of the present disclosure, there is provided a computer-readable medium storing a computer program executed by a processor to implement the method for isolating random access resources of an access network slice described in the first aspect of the above embodiment.

[0049] According to a sixth aspect of an embodiment of the present disclosure, there is provided an electronic device including one or more processors and a storage device storing one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the method for isolating random access resources of an access network slice described in the first aspect of the above embodiment.

[0050] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and are not intended to limit the present disclosure.

Brief Description of the Drawings

[0051] Here, the drawings are incorporated into the specification and show embodiments consistent with the present disclosure and are used to explain the principles of the present disclosure together with the specification. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and those skilled in the art can obtain other drawings based on these drawings without creative efforts.

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DETAILED DESCRIPTION OF THE INVENTION

[0052] Next, with reference to the drawings, exemplary embodiments will be described in more detail. However, it should be understood that the exemplary embodiments can be implemented in various forms and are not limited to the examples described herein. In contrast, these embodiments are provided to make the present disclosure more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0053] Furthermore, the described features, structures, or characteristics can be incorporated into one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a thorough understanding of the embodiments of the present disclosure. However, those skilled in the art will recognize that one can implement the technical approach of the present disclosure without one or more of these specific details, or can adopt other methods, components, devices, steps, etc. In other cases, well-known methods, devices, implementations, or operations are not illustrated or described in detail so as not to obscure the aspects of the present disclosure.

[0054] The block diagrams shown in the 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, may be implemented in one or more hardware modules or integrated circuits, or may be implemented in different networks and / or processor devices and / or microcontroller devices.

[0055] The flowcharts shown in the drawings are merely illustrative and need not include all contents and operations / steps, nor need they be executed in the described order. For example, some operations / steps can be decomposed, while some operations / steps can be merged or partially merged, so the actual execution order may vary according to the actual situation.

[0056] Hereinafter, the technical configuration in the embodiments of the present disclosure will be described in detail with reference to the drawings.

[0057] FIG. 1 shows a schematic diagram of an application scenario of a method for isolating random access resources of an access network slice in an exemplary embodiment of the present disclosure.

[0058] As shown in FIG. 1, this application scenario 100 can include a network device 110, which is a device capable of communicating with a terminal device 120 (or a communication terminal, a user terminal). The network device 110 can provide a communication overlay in a specific geographic area and communicate with terminal devices located within the overlay area. Alternatively, the network device 110 may be an evolved Node B (eNB or eNodeB) in an LTE system, or may be a network device in a 5G network such as a base station.

[0059] This application scenario 100 further includes at least one terminal device 120 located within the coverage range of the network device 110. The terminal device 120 is a user terminal in a 4G wireless network or a 5G wireless network. Note that the terminal device 120 may be a portable computer, a smartphone, an in-vehicle terminal, or a tablet computer.

[0060] Furthermore, in this exemplary embodiment, the terminal device 120 receives random access configuration information transmitted by the network device 110. The random access configuration information is the configuration information of the random access resources of a cell for the terminal device 120, and the random access configuration information includes information indicating that the random access resources of a cell for the terminal device 120 are used for slice-specific random access and / or common random access. That is, the random access configuration information can include information indicating that the random access resources of a cell for the terminal device 120 are used for slice-specific random access, the random access configuration information can include information indicating that the random access resources of a cell for the terminal device 120 are used for slice-specific random access and common random access, and the random access configuration information can also include information indicating that the random access resources of a cell for the terminal device 120 are used for common random access.

[0061] For example, the random access configuration information may include information indicating that the random access resources of the cell where the terminal device 120 is located are used for slice 1 and / or slice 2. The random access configuration information may include information indicating that the random access resources of the cell where the terminal device 120 is located are used for slice 1 and common random access. When no slice is defined in the random access configuration information or the value is a special value 0, this random access configuration information indicates that the random access resources of the cell where the terminal device 120 is located are used for common random access.

[0062] According to the technical aspect in the exemplary embodiment, a network device, such as a base station, broadcasts random access configuration information. The random access configuration information indicates the relationship between the random access resources and the slice / slice group / common random access. Through the random access configuration information, soft isolation and hard isolation between the slice-specific random access resources and the common random access resources can be flexibly realized to adapt to different slice service requirements and dynamic changes in network service loads. On the other hand, the soft isolation between the slice-specific random access resources and the common random access resources reduces the fragmentation of the random access resources and can provide subsequent transmission slice-specific QoS (Quality of Service) / QoE (Quality of Experience) services. The hard isolation between the slice-specific random access resources and the common random access resources provides a better random access resource configuration for the access network slice and can meet the needs of different customers.

[0063] FIG. 2 is a flowchart showing a method for isolating random access resources of an access network slice in some exemplary embodiments of the present disclosure. The execution subject of the method for isolating random access resources of an access network slice in the embodiments of the present disclosure may be a terminal device having computing capabilities such as the terminal device 120 in FIG. 1. This method for isolating random access resources of an access network slice includes step S210, and the method for isolating random access resources of an access network slice in exemplary embodiments will be described in detail below in relation to the drawings.

[0064] As shown in FIG. 2, in step S210, the terminal device receives random access configuration information transmitted by the network device, and the random access configuration information includes information indicating that the random access resources are used for slice-specific random access and / or common random access.

[0065] In an exemplary embodiment, the network device 110 transmits random access configuration information, the random access configuration information includes configuration information of random access resources of at least one cell, and the terminal device 120 receives the random access configuration information transmitted from the network device 110, and the random access configuration information includes information indicating that the random access resources are used for slice-specific random access and / or common random access.

[0066] When the network device 110 is a base station, the base station 110 broadcasts random access configuration information, adds information elements to the broadcast random access configuration information (e.g., RACH-ConfigCommon, RACH-ConfigCommonTwoStepRA, RACH-ConfigDedicated), and the added information elements indicate the slices / slice groups / common random access for which the random access resources are available, realizing soft isolation and hard isolation of the random access resources.

[0067] Hereinafter, the random access configuration information will be described in detail with reference to some exemplary embodiments.

[0068] Embodiment 1: The random access configuration information includes information indicating that the random access resource is used for slice 1 and / or slice 2, or, if the broadcast random access configuration information is not defined, for example, there is no new information element, or the value of the new information element is a special value 0, the random access configuration information indicates that the random access resource can be used for the common random access resource.

[0069] Embodiment 2: The random access configuration information includes information indicating that the random access resource is used for slice 1 and the common random access resource, thereby realizing soft isolation of the random access resource.

[0070] Embodiment 3: The random access configuration information includes information indicating that the random access resource is used only for a target slice / slice group, for example, slice 1 / slice group 1, thereby realizing hard isolation of the random access resource.

[0071] In step S220, the terminal device determines the target random access resource according to the relevant parameters and the random access configuration information.

[0072] In an exemplary embodiment, related parameters can be configured for slicing, and the related parameters can include at least one of: S-NSSAI (Single Network Slice Selection Assistance Information), slice group, and slice-free related configuration information. When the related parameter is a parameter of a slice or a slice group, the terminal device selects a corresponding random access resource as the target random access resource to be used from the slice-specific random access resource indicated by the random access configuration information according to the parameter of the slice or the slice group.

[0073] For example, when the parameter of the slice or the slice group is 1, that is, the slice 1 or the slice group is 1, the terminal device selects a corresponding random access resource as the target random access resource to be used from the slice-specific random access resource according to the slice 1 or the slice group 1.

[0074] Furthermore, the slice group is determined as follows. A network device such as a core network notifies the terminal device of the relationship between the S-NSSAI and the slice group via NAS (Non-Access Stratum) signaling, uses SST (Slice / Service type) as the slice group, and uses UAC (UE Access Control) as the slice group. For example, the network device notifies the terminal device of the relationship between the S-NSSAI and the slice group via NAS signaling, where the S-NSSAI corresponding to 1, 2, 3 is the slice group 1, and the S-NSSAI corresponding to 4, 5, 6 is the slice group 2.

[0075] In step S230, the terminal device initiates a random access request based on the target random access resource to be used.

[0076] In some exemplary embodiments, the terminal device 120 starts random access to the network device 110 based on the target random access resource determined according to the relevant parameters and the random access configuration information.

[0077] According to the technical aspect in the exemplary embodiment of FIG. 2, by a network device, such as a base station, broadcasting the random access configuration information, the random access configuration information indicates the relationship between the random access resource and the slice / slice group / common random access, and the soft isolation and hard isolation between the slice-specific random access resource and the common random access resource can be flexibly realized by the random access configuration information to adapt to different slice service requirements and dynamic changes in network service load. On the other hand, the soft isolation between the slice-specific random access resource and the common random access resource reduces the fragmentation of the random access resource and can provide subsequent transfer slice-specific QoS (Quality of Service) / QoE (Quality of Experience) services. The hard isolation between the slice-specific random access resource and the common random access resource provides an excellent random access resource configuration for the access network slice and can meet the needs of different customers.

[0078] Hereinafter, with reference to FIGS. 3 to 7, the embodiments of the present application will be described in detail using specific embodiments.

[0079] Embodiment 1: A scheme of sharing RO (Random Access Channel Occasion).

[0080] In this embodiment, the random access configuration information includes information indicating that the random access resource is used as a slice-specific random access resource and / or a common random access resource. The slice-specific random access resource and the common random access resource share the RO, and the slice-specific random access resource is different from the preamble sequence of the common random access resource. , which have various configurations .

[0081] In this embodiment, the random access configuration information includes the preamble sequence corresponding to the slice-specific random access resource and / or the preamble sequence corresponding to the common random access resource.

[0082] FIG. 3 shows a schematic diagram of the preamble sequence in the RO sharing scheme in some exemplary embodiments of the present disclosure. Specifically, referring to FIG. 3, the common RA resource corresponds to 1) the preamble sequence based on R collisions for the common 4-step RA, and / or 2) the preamble sequence based on Q collisions for the common 2-step RA. The slice-specific RA resource corresponds to 3) the preamble sequence based on R1 collisions for the slice 4-step RA, and / or 4) the preamble sequence based on Q1 collisions for the slice 2-step RA.

[0083] Furthermore, in this embodiment, when N < 1, one synchronization signal SSB is mapped to 1 / N random access opportunities RO. The R preamble sequences are numbered continuously from 0, the Q preamble sequences are numbered continuously from R, the R1 preamble sequences are numbered continuously from R + Q, and the Q1 preamble sequences are numbered continuously from R + Q + R1.

[0084] When N >= 1, one SSB is mapped to 1 / N random access opportunities RO, and the R preamble sequences are n·Ntotal preamble numbered consecutively from / N, and the Q preamble sequences are n·N total preamble numbered consecutively from / N+R, and the R1 preamble sequences are n·N total preamble numbered consecutively from / N+R+Q, and the Q1 preamble sequences are n·N total preamble numbered consecutively from / N+R+Q+R1, where N total preamble represents the total number of preamble sequences available for random access, and n is an integer between 0 and N-1 inclusive.

[0085] According to the technical aspect of this embodiment, the slice-specific RA resource and the common RA resource are distinguished by using different preamble sequences for the same random access opportunity RO, and more transmission opportunities can be provided for slice / slice group services, reducing latency.

[0086] Embodiment Two: Scheme without Sharing Random Access Opportunity RO In this embodiment, the random access configuration information includes information indicating that the random access resources are used for slice-specific random access resources and / or common random access resources. The slice-specific random access resources and the common random access resources share the preamble sequence, and the random access opportunities RO of the slice-specific random access resources and the common random access resources are either the slice-specific random access resources and the common random access resources use time-division random access opportunity RO, or the slice-specific random access resources and the common random access resources use frequency-division random access opportunity RO, or the slice-specific random access resources and the common random access resources use a combination of frequency-division and time-division random access opportunity RO.

[0087] As shown in FIG. 4, the ROs corresponding to the slice-specific RA resources and the common RA resources are frequency-divided in the time domain and the frequency domain. As shown in FIG. 5, the ROs corresponding to the slice-specific RA resources and the common RA resources are time-divided in the time domain and the frequency domain. As shown in FIG. 6, the ROs corresponding to the slice-specific RA resources and the common RA resources are time and frequency-divided in the time domain and the frequency domain, that is, time-division + frequency-division.

[0088] According to the technical solution in this embodiment, the slice-specific RA resources and the common RA resources can reduce the probability of random access contention and increase the access success rate by using different ROs and sharing the preamble sequence.

[0089] Embodiment Three: Embodiment of the Hybrid Mode In this embodiment, the random access configuration information includes information indicating that the random access resources are used for slice-specific random access resources and / or common random access resources. A part of the slice-specific random access resources and / or a part of the common random access resources share the random access opportunity RO and use different preamble sequences, and another part of the slice-specific random access resources and / or another part of the common random access resources use different random access opportunity ROs and share the preamble sequence.

[0090] As shown in FIG. 7, the common RA resources and the slice 1 RA resources use the same RO and different preamble sequences. The slice 2 RA resources and the common RA + slice 1 RA resources use different ROs and the same preamble sequence.

[0091] According to the technical aspect of this embodiment, a part of the slice-specific RA resource and the common RA resource uses the same RO, and is distinguished by using different preamble sequences. Another part uses different ROs and shares the preamble sequence. By flexibly configuring the ROs and preamble sequences of the slice-specific RA resource and the common RA resource, it can be appropriately adapted to the network load and the needs of various services.

[0092] Note that the above drawings are schematic descriptions of the processes included in the method in the exemplary embodiments of the present disclosure and are not for limiting purposes. It is easy to understand that the processes shown in the above drawings do not show or limit the time sequence of these processes. It is also easy to understand that these processes may be executed synchronously or asynchronously in, for example, a plurality of modules.

[0093] Hereinafter, embodiments of the device of the present application will be described, which implement a method for isolating random access resources of an access network slice.

[0094] FIG. 8 shows a configuration diagram of a terminal device in an embodiment of the present application.

[0095] As shown in FIG. 8, the terminal device 800 includes a receiving module 810, and the receiving module 810 is configured to receive random access configuration information transmitted by a network device. The random access configuration information is configuration information of random access resources of a cell where the terminal device is located, and the random access configuration information includes information indicating that the random access resources are used for slice-specific random access resources and / or common random access resources.

[0096] In some exemplary embodiments, the terminal device 800 further includes an access processing module 820, which is configured to determine a target random access resource according to relevant parameters and the random access configuration information, and initiate a random access request based on the target random access resource.

[0097] In some exemplary embodiments, the relevant parameters include at least one of single network slice selection assistance information S-NSSAI, slice group, and slice-free related configuration information.

[0098] In some exemplary embodiments, the slice group is determined by any one of the following: the network device notifies the terminal device of the relationship between S-NSSAI and the slice group via non-access stratum NAS signaling; using slice / service type SST as the slice group; or using user access control UAC as the slice group.

[0099] In some exemplary embodiments, the random access configuration information includes information indicating that the random access resource is used for the slice-specific random access resource and / or the common random access resource. The slice-specific random access resource and the common random access resource share a random access opportunity RO, and the slice-specific random access resource is different from the preamble sequence of the common random access resource.

[0100] In some exemplary embodiments, the random access configuration information further includes a preamble sequence corresponding to the slice-specific random access resource and / or a preamble sequence corresponding to the common random access resource.

[0101] In some exemplary embodiments, the common random access resource corresponds to a preamble sequence based on R collisions for common 4-step random access and / or a preamble sequence based on Q collisions for common 2-step random access, and the slice-specific random access resource corresponds to a preamble sequence based on R1 collisions for slice 4-step random access and / or a preamble sequence based on Q1 collisions for slice 2-step random access.

[0102] In some exemplary embodiments, when N < 1, one synchronization signal SSB is mapped to 1 / N random access opportunities RO, the R preamble sequences are numbered continuously from 0, the Q preamble sequences are numbered continuously from R, the R1 preamble sequences are numbered continuously from R + Q, and the Q1 preamble sequences are numbered continuously from R + Q + R1. When N >= 1, one SSB is mapped to 1 / N random access opportunities RO, the R preamble sequences are numbered continuously from n·N total preamble / N, the Q preamble sequences are numbered continuously from n·N total preamble / N + R, the R1 preamble sequences are numbered continuously from n·N total preamble / N + R + Q, and the Q1 preamble sequences are numbered continuously from n·N total preamble / N + R + Q + R1, where N total preamble represents the total number of preamble sequences available for random access, and n is greater than or equal to 0 and less than or equal to N - 1.

[0103] In some exemplary embodiments, the random access configuration information includes information indicating that the random access resource is used for the slice-specific random access resource and / or the common random access resource. The slice-specific random access resource and the common random access resource share a preamble sequence. The random access opportunity RO between the slice-specific random access resource and the common random access resource is such that the slice-specific random access resource and the common random access resource use a time-division random access opportunity RO, the slice-specific random access resource and the common random access resource use a frequency-division random access opportunity RO, or the slice-specific random access resource and the common random access resource use a random access opportunity RO that combines frequency division and time division.

[0104] In some exemplary embodiments, the random access configuration information includes information indicating that the random access resource is used for the slice-specific random access resource and / or the common random access resource. A part of the slice-specific random access resource and / or a part of the common random access resource share a random access opportunity RO and use different preamble sequences. Another part of the slice-specific random access resource and / or another part of the common random access resource use different random access opportunities RO and share a preamble sequence.

[0105] Since each functional module of the terminal device in the exemplary embodiments of the present disclosure corresponds to the steps of the exemplary embodiments of the above-described method for isolating random access resources, for details not disclosed in the embodiments of the terminal device of the present disclosure, reference may be made to the embodiments of the above-described method for isolating random access resources of the present disclosure.

[0106] FIG. 9 shows a configuration diagram of a network device according to an embodiment of the present application.

[0107] As shown in FIG. 9, the network device 900 includes a configuration information transmission module 910, and the configuration information transmission module 910 is configured to transmit random access configuration information. The random access configuration information is configuration information of random access resources of at least one cell, and the random access configuration information includes information indicating that the random access resources are used for slice-specific random access resources and / or common random access resources.

[0108] In some exemplary embodiments, the random access configuration information is used for a terminal device in the cell to determine a target random access resource according to slice-related parameters and the random access configuration information.

[0109] In some exemplary embodiments, the slice-related parameters include at least one of single network slice selection assistance information S-NSSAI, a slice group, and slice-free related configuration information.

[0110] In some exemplary embodiments, the slice group is determined by any one of the network device notifying the terminal device of the relationship between the S-NSSAI and the slice group via non-access stratum NAS signaling, using the slice / service type SST as the slice group, or using user access control UAC as the slice group.

[0111] In some exemplary embodiments, the random access configuration information includes information indicating that the random access resource is used for the slice-specific random access resource and / or the common random access resource, and the slice-specific random access resource and the common random access resource share a random access opportunity RO, and the slice-specific random access resource is different from the preamble sequence of the common random access resource.

[0112] In some exemplary embodiments, the random access configuration information further includes a preamble sequence corresponding to the slice-specific random access resource and / or a preamble sequence corresponding to the common random access resource.

[0113] In some exemplary embodiments, the common random access resource corresponds to a preamble sequence based on R competitions for common 4-step random access and / or a preamble sequence based on Q competitions for common 2-step random access, and the slice-specific random access resource corresponds to a preamble sequence based on R1 competitions for slice 4-step random access and / or a preamble sequence based on Q1 competitions for slice 2-step random access.

[0114] In some exemplary embodiments, when N < 1, one synchronization signal SSB is mapped to 1 / N random access opportunities RO, the R preamble sequences are numbered continuously from 0, the Q preamble sequences are numbered continuously from R, the R1 preamble sequences are numbered continuously from R + Q, and the Q1 preamble sequences are numbered continuously from R + Q + R1. When N >= 1, one SSB is mapped to 1 / N random access opportunities RO, and the R preamble sequences are n·N total preambleSequentially numbered starting from / N, and the Q preamble sequences are n·N total preamble Sequentially numbered starting from / N+R, and the R1 preamble sequences are n·N total preamble Sequentially numbered starting from / N+R+Q, and the Q1 preamble sequences are n·N total preamble Sequentially numbered starting from / N+R+Q+R1, where N total preamble represents the total number of preamble sequences available for random access, and n is an integer between 0 and N-1 inclusive.

[0115] In some exemplary embodiments, the random access configuration information includes information indicating that the random access resource is used for the slice-specific random access resource and / or the common random access resource. The slice-specific random access resource and the common random access resource share a preamble sequence, and the random access opportunity RO for the slice-specific random access resource and the common random access resource is such that the slice-specific random access resource and the common random access resource use a time-division random access opportunity RO, the slice-specific random access resource and the common random access resource use a frequency-division random access opportunity RO, or the slice-specific random access resource and the common random access resource use a combination of frequency-division and time-division random access opportunity RO.

[0116] In some exemplary embodiments, the random access configuration information includes information indicating that the random access resource is used for the slice-specific random access resource and / or the common random access resource. A part of the slice-specific random access resource and / or a part of the common random access resource share a random access opportunity RO and use different preamble sequences. Another part of the slice-specific random access resource and / or another part of the common random access resource use different random access opportunities RO and share the preamble sequence.

[0117] Each functional module of the network device according to the exemplary embodiment of the present disclosure corresponds to the steps of the exemplary embodiment of the above-mentioned method for isolating random access resources. For details not disclosed in the embodiment of the network device of the present disclosure, refer to the embodiment of the above-mentioned method for isolating random access resources of the present disclosure.

[0118] In addition, in the above detailed description, some modules or units of the device for executing operations are mentioned, but such division is not mandatory. In fact, according to the embodiment of the present disclosure, the features and functions of the above-mentioned two or more modules or units can be embodied in one module or unit. Conversely, the features and functions of the above-mentioned one module or unit can be further divided and embodied in a plurality of modules or units.

[0119] Also, in the accompanying drawings, each step of the method in the present disclosure is described in a specific order, but this does not require or imply that these steps must be executed in that specific order, or that all steps must be executed to achieve the desired result. Additionally or alternatively, some steps can be omitted, a plurality of steps can be merged into one step execution, or one step can be decomposed into a plurality of step executions.

[0120] From the description of the above embodiments, those skilled in the art can easily understand that the exemplary embodiments described in this specification can be implemented by software, or can be implemented by combining the necessary hardware with software. Therefore, the technical aspects in the embodiments of the present disclosure may be embodied in the form of a software product that may be stored in a non-volatile storage medium (such as a CD-random access timing ROM, a USB disk, a mobile hard disk, etc.), or may be stored on a network including instructing a computing device (which may be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method in the embodiments of the present disclosure.

[0121] In the exemplary embodiments of the present disclosure, a computer storage medium capable of implementing the above method is also provided. A program product capable of implementing the methods described in this specification is stored therein. In some possible embodiments, various aspects of the present disclosure, when executed on a terminal device, can also be implemented in the form of a program product used to cause the terminal device to execute the steps according to various exemplary embodiments of the present disclosure described in the "Exemplary Method" section of this specification.

[0122] The above program product can use a portable compact disc read-only memory (CD-random access timing ROM), includes program code, and can operate on a terminal device such as a personal computer. However, the program product of the present disclosure is not limited thereto. In this file, the readable storage medium may be any tangible medium that includes or stores a program that can be used to instruct the execution of a system, device, or device, or to be used in combination with them.

[0123] The above program product can employ any combination of one or more readable media. The readable media may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (non-exhaustive list) of the readable storage medium include electrical connections by one or more wires, portable disks, hard disks, random access memory (random access), read-only memory (random access timing ROM), erasable programmable read-only memory (EP random access timing ROM or flash), optical fibers, portable compact disks with read-only memory (CD random access timing ROM), optical storage devices, magnetic storage devices, or any suitable combination of the above.

[0124] The computer-readable signal medium can be composed of a data signal propagated in a baseband or as part of a carrier wave with readable program code. Such a propagated data signal can take various forms including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the above. Also, the readable signal medium may be any readable medium other than a readable storage medium that transmits, propagates, or conveys a program used by or used in conjunction with an instruction execution system, apparatus, or device.

[0125] The program code contained in the readable medium can be transmitted using any suitable medium including, but not limited to, wireless, wired, fiber optic cable, RF, or any suitable combination of the above.

[0126] The program code for executing the operations of the present disclosure includes object-oriented programming languages (such as Java, C++) and conventional procedural programming languages (such as conventional procedural programming languages like the C language). The program code may be executed entirely on the user's computing device, partially on the user's device, executed as a stand-alone software package, partially on the user's computing device, partially on a remote computing device, or entirely on a remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user's computing device via any type of network including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (for example, connecting via the Internet using an Internet service provider).

[0127] Furthermore, in an exemplary embodiment of the present disclosure, an electronic device capable of implementing the above-described method is provided.

[0128] Those skilled in the art can understand that various aspects of the present disclosure can be implemented as a system, method, or program product. Therefore, various aspects of the present disclosure can be specifically implemented as a complete hardware embodiment, a complete software embodiment (including firmware, microcode, etc.), or an embodiment in which aspects of hardware and software are combined, which can be generically referred to herein as "circuit", "module", or "system".

[0129] Hereinafter, with reference to FIG. 10, the electronic device 1000 according to this embodiment of the present disclosure will be described. The electronic device 1000 shown in FIG. 10 is merely an example and does not impose any limitations on the functions and usage scope of the embodiments of the present disclosure.

[0130] As shown in FIG. 10, the electronic device 1000 is represented as a general-purpose computing device. The components of the electronic device 1000 can include, but are not limited to, at least one processing unit 710, at least one storage unit 720, and a bus 730 that connects different system components including the storage unit 720 and the processing unit 710.

[0131] Here, the storage unit stores program code executable by the processing unit 710, and the processing unit 710 may execute steps in various embodiments of the present disclosure described in the "Method Example" section of this specification. For example, as shown in FIG. 2, in S210, the processing unit 710 receives random access configuration information transmitted by a network device, and the random access configuration information includes information indicating that the random access resource is used for slice-specific random access and / or common random access. In S220, the target random access resource to be used is determined according to the relevant parameters and the random access configuration information. In 230, a random access request is initiated based on the target random access resource.

[0132] Exemplarily, the above-mentioned processing unit 710 can also execute the method for isolating random access resources in the above-mentioned embodiments.

[0133] The storage unit 720 can include a readable medium in the form of a volatile storage unit such as a random access storage unit (random access) 7201 and / or a cache storage unit 7202, and can further include a read-only storage unit (random access timing ROM) 7203.

[0134] The memory unit 720 can also include a program / utility 7204 having a set (at least one) of program modules 7205 that includes an operating system, one or more applications, other program modules, and program data, although implementations in a network environment may be included in each or some combination of these examples, but are not limited thereto.

[0135] The bus 730 can represent one or more of several classes of bus structures including a memory cell bus or memory cell controller, a peripheral bus, a graphical acceleration port, a processing unit, or a local bus using any of a plurality of bus structures.

[0136] The electronic device 1000 can also communicate with one or more external devices 790 such as a keyboard, a pointing device, a Bluetooth device, etc., and can also communicate with one or more devices that allow a user to interact with the electronic device 1000, and / or can communicate with any device (such as a router, a modem, etc.) that allows the electronic device 1000 to communicate with one or more other computing devices. This communication can be performed via the input / output (I / O) interface 750. Also, the electronic device 1000 can communicate with a public network such as a local area network (LAN), a wide area network (WAN), and / or the Internet via the network adapter 760. As shown, the network adapter 760 communicates with other modules of the electronic device 1000 via the bus 730. Although not shown, it should be understood that other hardware and / or software modules including, but not limited to, microcode, device drivers, redundant processing units, external disk drive arrays, random access ID systems, tape drives, data backup storage systems, etc. can be used in combination with the electronic device 1000.

[0137] From the description of the above embodiments, those skilled in the art can easily understand that the exemplary embodiments described in this specification can be implemented by software and can also be implemented by combining the necessary hardware with software. Therefore, the technical aspects in the embodiments of the present disclosure can execute the method in the embodiments of the present disclosure, which can be embodied in the form of a software product stored in a non-volatile storage medium (which may be a CD-random access timing ROM, a USB disk, a mobile hard disk, etc.) containing a plurality of instructions including one computing device (which may be a personal computer, a server, a terminal device, or a network device, etc.).

[0138] In addition, the above drawings are schematic descriptions of the processes included in the method in the exemplary embodiments of the present disclosure and are not for limiting purposes. It is easy to understand that the processes shown in the above-described drawings do not show or limit the time series of these processes. It is also easy to understand that these processes may be executed synchronously or asynchronously in, for example, a plurality of modules.

[0139] Those skilled in the art will readily conceive of 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, including known common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure, in accordance with the general principles of the present disclosure. The specification and embodiments are treated only as examples, and the true scope and spirit of the present disclosure are pointed out by the claims.

Claims

1. The method includes receiving, by a terminal device, random access configuration information transmitted by a network device, wherein the random access configuration information includes information indicating that a random access resource is used as a slice-specific random access resource and / or a common random access resource, wherein the common random access resource corresponds to a preamble sequence based on R contentions for common 4-step random access and / or a preamble sequence based on Q contentions for common 2-step random access, wherein the slice-specific random access resource corresponds to a preamble sequence based on R1 contentions for slice 4-step random access and / or a preamble sequence based on Q1 contentions for slice 2-step random access A method for isolating random access resources of an access network slice, characterized in that.

2. The method further includes: determining, by the terminal device, a target random access resource according to related parameters and the random access configuration information; and initiating, by the terminal device, a random access request based on the target random access resource. The method for isolating random access resources of an access network slice according to claim 1, characterized in that.

3. The related parameters include at least one of single network slice selection assistance information S-NSSAI, a slice group, and slice-free related configuration information. The method for isolating random access resources of an access network slice according to claim 2, characterized in that.

4. The slice group is determined by any one of the following: the network device notifying the terminal device of the relationship between the S-NSSAI and the slice group via non-access stratum NAS signaling; using a slice / service type SST as the slice group; or using user access control UAC as the slice group. The method for isolating random access resources of an access network slice according to claim 3, characterized in that. **Claim 5**: The dedicated slice random access resource and the common random access resource share a random access opportunity RO, and the dedicated slice random access resource is different from the preamble sequence of the common random access resource. The method for isolating random access resources of an access network slice according to claim 1, characterized in that. **Claim 6** The random access configuration information further includes a preamble sequence corresponding to the dedicated slice random access resource and / or a preamble sequence corresponding to the common random access resource. The method for isolating random access resources of an access network slice according to claim 5, characterized in that. **Claim 7** When N < 1, one synchronization signal SSB is mapped to 1 / N random access opportunities RO, the R preamble sequences are continuously numbered from 0, the Q preamble sequences are continuously numbered from R, the R1 preamble sequences are continuously numbered from R + Q, and the Q1 preamble sequences are continuously numbered from R + Q + R1. When N >= 1, one SSB is mapped to 1 / N random access opportunities RO, and the R preamble sequences are numbered consecutively from n·N total preamble / N, and the Q preamble sequences are numbered consecutively from n·N total preamble / N + R, and the R1 preamble sequences are numbered consecutively from n·N total preamble / N + R + Q, and the Q1 preamble sequences are numbered consecutively from n·N total preamble / N + R + Q + R1, N total preamble indicates the total number of preamble sequences available for random access, where n is greater than or equal to 0 and less than or equal to N-1 The method for isolating random access resources of an access network slice according to claim 1, characterized in that. **Claim 8**: The dedicated slice random access resource and the common random access resource share a preamble sequence, and the random access opportunities RO of the dedicated slice random access resource and the common random access resource are the dedicated slice random access resource and the common random access resource use time-division random access opportunities RO, the dedicated slice random access resource and the common random access resource use frequency-division random access opportunities RO, or the dedicated slice random access resource and the common random access resource use frequency-division and time-division random access opportunities RO in any relationship. The method for isolating random access resources of an access network slice according to claim 1, characterized in that.

9. A part of the slice-specific random access resource and / or a part of the common random access resource share a random access opportunity RO and use different preamble sequences. Another part of the slice-specific random access resource and / or another part of the common random access resource use different random access opportunities RO and share a preamble sequence. The method for isolating random access resources of an access network slice according to claim 1, characterized in that.

10. The method includes a network device transmitting random access configuration information, where the random access configuration information is configuration information of random access resources of at least one cell, and the random access configuration information includes information indicating that the random access resources are used for slice-specific random access resources and / or common random access resources. The common random access resource corresponds to a preamble sequence based on R competitions for common 4-step random access and / or a preamble sequence based on Q competitions for common 2-step random access. The slice-specific random access resource corresponds to a preamble sequence based on R1 competitions for slice 4-step random access and / or a preamble sequence based on Q1 competitions for slice 2-step random access. The method for isolating random access resources of an access network slice, characterized in that.

11. The random access configuration information is used for a terminal device in the cell to determine a target random access resource according to slice-related parameters and the random access configuration information. The method for isolating random access resources of an access network slice according to claim 10, characterized in that.

12. The slice-related parameters include at least one of single network slice selection assistance information S-NSSAI, a slice group, and slice-less related configuration information. The method for isolating random access resources of an access network slice according to claim 11, characterized in that.

13. The slice group is The network device notifies the terminal device of the relationship between the S-NSSAI and the slice group via non-access stratum NAS signaling, using the slice / service type SST as the slice group, or determined by any one of using the user access control UAC as the slice group The method for isolating random access resources of an access network slice according to claim 12, characterized in that.

14. The random access configuration information includes information indicating that the random access resource is used for the slice-specific random access resource and / or the common random access resource. The slice-specific random access resource and the common random access resource share a random access opportunity RO, and the slice-specific random access resource is different from the preamble sequence of the common random access resource. The method for isolating random access resources of an access network slice according to claim 10, characterized in that.

15. The random access configuration information further includes a preamble sequence corresponding to the slice-specific random access resource and / or a preamble sequence corresponding to the common random access resource. The method for isolating random access resources of an access network slice according to claim 14, characterized in that.

16. The random access configuration information includes information indicating that the random access resource is used for the slice-specific random access resource and / or the common random access resource. The slice-specific random access resource and the common random access resource share a preamble sequence, and the random access opportunity RO between the slice-specific random access resource and the common random access resource is the slice-specific random access resource and the common random access resource use a time-division random access opportunity RO, the slice-specific random access resource and the common random access resource use a frequency-division random access opportunity RO, or The dedicated slice random access resource and the common random access resource are in a relationship of using either frequency division or time division random access opportunity RO. The method for isolating random access resources of an access network slice according to claim 10, characterized in that.

17. The random access configuration information includes information indicating that the random access resource is used for the dedicated slice random access resource and / or the common random access resource. A part of the dedicated slice random access resource and / or a part of the common random access resource share a random access opportunity RO and use different preamble sequences. Another part of the dedicated slice random access resource and / or another part of the common random access resource use different random access opportunities RO and share a preamble sequence. The method for isolating random access resources of an access network slice according to claim 10, characterized in that.

18. When executed by a processor, a terminal device receives random access configuration information sent by a network device. The random access configuration information includes information indicating that the random access resource is used for the dedicated slice random access resource and / or the common random access resource. The common random access resource corresponds to a preamble sequence based on R competitions for common 4-step random access and / or a preamble sequence based on Q competitions for common 2-step random access. A computer program that realizes that the dedicated slice random access resource corresponds to a preamble sequence based on R1 competitions for slice 4-step random access and / or a preamble sequence based on Q1 competitions for slice 2-step random access.

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