Random access method and apparatus, and storage medium

Abstract

SOLUTION: The random access method includes: receiving resource configuration information sent by a base station; determining slice information of a target network slice triggering random access; determining a first random access resource based on at least the resource configuration information and the slice information; and initiating random access based on the first random access resource.EFFECT: The UE determines the first random access resource from the resources configured by the resource configuration information, so that random access can be quickly completed, and a desired slice service can be obtained.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to the field of communications, and in particular to a random access method, apparatus and storage medium. [Background technology]

[0002] Network slices can provide a complete end-to-end virtual network for a specific user. By dividing network resources into multiple network slices, 5G (5th generation mobile networks) network slices can provide differentiated services to users with different service needs. These different service needs include, but are not limited to, latency, reliability, capacity, isolation, and other features. Operator networks can not only serve information consumption-related businesses, whose communication demands are characterized by "best effort transmission," but also meet production control-related services, whose communication demands require reliable transmission. Operator networks can allocate logically or physically isolated network resources to services with significantly different communication demands.

[0003] A network slice can consist of a Radio Access Network (RAN) part and a Core Network (CN) part. The realization of a network slice is determined by the principle that traffic of different slices is handled by different Protocol Data Unit (PDU) sessions. The network can realize different network slices by scheduling and providing different L1 / L2 layer configurations.

[0004] The random access process includes contention random access and non-contention random access. In contention random access, the random access request resource (i.e., the resource used by MSG1) is not dedicated to one UE (User Equipment), that is, multiple users may initiate random access requests in the same time and frequency domain resources, and the relationship between the base station and the UE needs to be established through a contention resolution process. In non-contention random access, the random access request resource is assigned to a designated UE by the base station, and the base station can uniquely identify this UE by simply recognizing the random access resource dedicated to this UE. Summary of the Invention [Problem to be solved by the invention]

[0005] To overcome the problems existing in the related art, embodiments of the present disclosure provide a random access method, apparatus and storage medium. [Means for solving the problem]

[0006] According to a first aspect of an embodiment of the present disclosure, there is provided a random access method for use with a user equipment (UE), the method comprising: receiving resource configuration information transmitted from a base station; Determining slice information of a target network slice for triggering random access; determining a first random access resource based at least on the resource configuration information and the slice information; initiating random access based on the first random access resource; The resource configuration information is used to configure at least one of a common random access resource, a designated random access resource corresponding to at least one network slice, a two-step random access resource, a four-step random access resource, a two-step common random access resource, a four-step common random access resource, a two-step designated random access resource, and a four-step designated random access resource.

[0007] According to a second aspect of an embodiment of the present disclosure, there is provided a random access method used for a base station, the method comprising: transmitting the resource configuration information to a user equipment (UE); The resource configuration information is used to configure at least one of a common random access resource, a designated random access resource corresponding to at least one network slice, a two-step random access resource, a four-step random access resource, a two-step common random access resource, a four-step common random access resource, a two-step designated random access resource, and a four-step designated random access resource.

[0008] According to a third aspect of an embodiment of the present disclosure, there is provided a random access device for use with a user equipment (UE), the device comprising: a receiving module configured to receive resource configuration information sent from a base station; A first determination module configured to determine slice information of a target network slice that triggers random access; a second determination module configured to determine a first random access resource based on at least the resource configuration information and the slice information; a random access module configured to initiate random access based on the first random access resource; The resource configuration information is used to configure at least one of a common random access resource, a designated random access resource corresponding to at least one network slice, a two-step random access resource, a four-step random access resource, a two-step common random access resource, a four-step common random access resource, a two-step designated random access resource, and a four-step designated random access resource.

[0009] According to a fourth aspect of an embodiment of the present disclosure, there is provided a random access device for use with a base station, the device comprising: a transmitting module configured to transmit the resource configuration information to a user equipment (UE); The resource configuration information is used to configure at least one of a common random access resource, a designated random access resource corresponding to at least one network slice, a two-step random access resource, a four-step random access resource, a two-step common random access resource, a four-step common random access resource, a two-step designated random access resource, and a four-step designated random access resource.

[0010] According to a fifth aspect of an embodiment of the present disclosure, there is provided a computer-readable storage medium having a computer program stored thereon, the computer program executing any of the random access methods described above on the UE side.

[0011] According to a sixth aspect of the present disclosure, there is provided a computer-readable storage medium having a computer program stored thereon, the computer program executing the random access method described in any of the above base stations.

[0012] According to a seventh aspect of an embodiment of the present disclosure, there is provided a random access device, comprising: a processor; a memory for storing instructions executable by the processor; The processor is configured to perform any of the random access methods described above on the UE side.

[0013] According to an eighth aspect of an embodiment of the present disclosure, there is provided a random access device, comprising: a processor; a memory for storing instructions executable by the processor; The processor is configured to perform any of the base station side random access methods described above. [Effects of the Invention]

[0014] The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects.

[0015] In an embodiment of the present disclosure, a first random access resource for initiating random access can be determined based on slice information of a target network slice for initiating random access by a user equipment and resource configuration information sent from the network side, and the resource configuration information can configure at least one of a common random access resource, a designated random access resource corresponding to the target network slice, a two-step random access resource, a four-step random access resource, a two-step common random access resource, a four-step common random access resource, a two-step designated random access resource, and a four-step designated random access resource, so that the UE can determine the first random access resource from the resources configured by the resource configuration information, thereby quickly completing the random access and obtaining the desired slice service.

[0016] In the embodiment of the present disclosure, when the first random access resource is conflicted multiple times, the user equipment can perform resource fallback and resume random access based on the second random access resource to which the fallback is applied, thereby avoiding the UE from starting random access using the first random access resource and failing the random access until the maximum number of random access attempts is reached, and improving the success rate of the UE's random access.

[0017] It should be noted that the above general description and the following detailed description are merely exemplary and explanatory and do not limit the present disclosure. [Brief explanation of the drawings]

[0018] The drawings herein 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 invention. [Figure 1] 1 is a schematic flowchart of a random access method illustrated by an exemplary embodiment; [Figure 2] 4 is a schematic flowchart of another random access method illustrated by an exemplary embodiment; [Figure 3] 4 is a schematic flowchart of another random access method illustrated by an exemplary embodiment; [Figure 4] 4 is a schematic flowchart of another random access method illustrated by an exemplary embodiment; [Figure 5] 1 is a block diagram of a random access device according to an exemplary embodiment; [Figure 6] FIG. 10 is a block diagram of another random access device according to an exemplary embodiment; [Figure 7] FIG. 1 is a schematic structural diagram of a random access device according to an exemplary embodiment of the present disclosure. [Figure 8] FIG. 10 is a schematic structural diagram of another random access device according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0019] Illustrative embodiments will now be described in detail, examples of which are illustrated in the drawings. Where the following description refers to the drawings, like numerals in different drawings represent the same or similar elements unless otherwise stated. The embodiments described in the following illustrative examples do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0020] The terms used in this disclosure are for the purpose of describing particular embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly dictates otherwise. Additionally, the term "and / or" as used herein refers to any and all possible combinations of at least one of the associated listed items.

[0021] In this disclosure, terms such as first, second, and third may be used to describe various pieces of information, but it should be understood that such information should not be limited to these terms. These terms are merely used to distinguish between the same types of information. For example, first information could be referred to as second information, and similarly, second information could be referred to as first information, without departing from the scope of this disclosure. Depending on the context, the word "if" as used herein can be interpreted as "when" or "in the case of" or "responsive to a determination."

[0022] In an embodiment of the present disclosure, a UE using a specific slice service can initiate random access based on a common RACH (Random Access Channel) resource. Considering that multiple UEs initiate random access using a common RACH resource, the network is likely to be congested.

[0023] To solve this technical problem, each network slice or each network slice group can be configured with an individual designated RACH resource corresponding to this network slice.

[0024] In the R16 (Release 16, Version 16) stage, a two-step random access scheme is introduced, and Msg1 (Message 1) and Msg3 (Message 3) of the four-step random access scheme are merged into MsgA (Message A), and the two downlink channels Msg2 (Message 2) and Msg4 (Message 4) are merged into a new MsgB (Message B), thereby simplifying the random access process and reducing delay and signaling overhead. Before initiating random access, the UE (User Equipment) first determines the type of random access.

[0025] The fallback mechanism is further explained below. In the case of the two-step random access method, when the number of retransmissions of MsgA reaches a certain threshold, the RA type is switched to the four-step random access method and repeated access attempts of Msg1 are made. This threshold is set by the base station in the system message.

[0026] Besides switching to the 4-step random access scheme when a retransmission threshold is reached, a fallback mechanism is also specified, which is triggered by the correct detection of the preamble in MsgA, but if the demodulation of the PUSCH (Physical Uplink Shared Channel) message fails, the base station will feed back one fallbackRAR (fallback Random Access Response) message, which is similar to msg2 in the 4-step random access scheme to schedule the transmission of Msg3. In this case, if a retransmission occurs due to a failed transmission of msg3, the 2-step random access scheme should be used preferentially.

[0027] Currently, when configuring random access resources, it is necessary to select an appropriate random access resource to initiate random access and perform resource failback, but how to achieve resource failback needs further improvement. To solve this problem, the present disclosure provides the following random access method:

[0028] The random access scheme provided by the present disclosure will now be described from the user equipment side.

[0029] An embodiment of the present disclosure provides a random access method that can be used for a user equipment (UE), and as shown in FIG. 1, FIG. 1 is a flowchart of a random access method shown by an exemplary embodiment, which may include the following steps 101 to 104.

[0030] In step 101, resource setting information transmitted from the base station is received.

[0031] In an embodiment of the present disclosure, the resource configuration information is used to configure at least one of a common random access resource, a designated random access resource corresponding to at least one network slice, a two-step random access resource, a four-step random access resource, a two-step common random access resource, a four-step common random access resource, a two-step designated random access resource, and a four-step designated random access resource.

[0032] The common random access resource is a random access resource shared among multiple UEs, and in one possible example, the multiple UEs include UEs that support the network slice function and UEs that do not support the network slice function, i.e., the common random access resource is a random access resource shared by UEs that support the network slice function and UEs that do not support the network slice function.

[0033] In another possible implementation, the plurality of UEs includes only UEs that support the network slice function, i.e., the common random access resource is a shared random access resource among the UEs that support the network slice function.

[0034] The designated random access resource corresponding to at least one network slice refers to a resource for initiating random access by a UE in this network slice, which is individually configured for each network slice. For example, the designated random access resource corresponding to network slice 1 includes resource 1, the designated random access resource corresponding to network slice 2 includes resource 2, etc. Alternatively, the designated random access resource corresponding to at least one network slice is a resource for initiating random access by a UE in each network slice in this network slice group, which is configured for each network slice group. Each network slice group may include two or more network slices.

[0035] The two-step random access resource refers to the resource available when the UE adopts a two-step random access method, and the four-step random access resource refers to the resource available when the UE adopts a four-step random access method.

[0036] The two-step common random access resource refers to a composite resource that is shared among multiple UEs and can be used when adopting a two-step random access method. The four-step common random access resource refers to a composite resource that is shared among multiple UEs and can be used when adopting a four-step random access method.

[0037] The two-step designated random access resource refers to the random access resource provided by the UE for a specific network slice and the composite resource available when adopting a two-step random access method. The four-step designated random access resource refers to the random access resource provided by the UE for a specific network slice and the composite resource available when adopting a four-step random access method.

[0038] In step 102, slice information of a target network slice that triggers random access is determined.

[0039] In an embodiment of the present disclosure, the target network slice may be a network slice for initiating random access by the user equipment, i.e., the target network slice may be a network slice at which the user equipment is triggered to initiate random access.

[0040] In step 103, a first random access resource is determined based on at least the resource configuration information and the slice information.

[0041] In step 104, random access is initiated based on the first random access resource.

[0042] In the above embodiment, based on the slice information of the target network slice for initiating random access by the user equipment and the resource configuration information sent from the network side, a first random access resource for initiating random access can be determined from the random access resources configured by the resource configuration information, thereby reducing the possibility of collisions occurring during random access between a UE using a specific slice service and other UEs and improving the success rate of UE random access, thereby enabling the UE to quickly complete random access and obtain the desired slice service.

[0043] In some alternative embodiments, for the above step 101, the UE may receive the resource configuration information in any of the following ways:

[0044] In one possible implementation, for the initial random access process of the UE, the UE can receive a system message carrying resource configuration information sent from the base station side.

[0045] In one possible implementation, for a random access process triggered by a Physical Downlink Control Channel (PDCCH) command, the UE may receive a PDCCH command carrying this resource configuration information.

[0046] In one possible implementation, if the UE has already established an RRC connection with the base station, i.e., an RRC message sent from the base station triggers the UE to initiate random access, the UE can receive a radio resource control RRC message carrying the resource configuration information.

[0047] The resource configuration information is used to configure at least one of a common random access resource, a designated random access resource corresponding to at least one network slice, a two-step random access resource, a four-step random access resource, a two-step common random access resource, a four-step common random access resource, a two-step designated random access resource, and a four-step designated random access resource.

[0048] In the above embodiment, the UE can obtain resource configuration information in various ways, which improves the success rate of random access and provides high availability.

[0049] In some alternative embodiments, to determine the slice information of the target network slice that triggers random access, the UE may adopt any of the following methods, but are not limited to:

[0050] In one possible embodiment, when the UE requests the AS (Access Stratum) layer at the NAS (Non-Access Stratum) layer to initiate an RRC connection, the UE can obtain slice information of the target network slice that is sent by the NAS layer to the AS layer.

[0051] In another possible implementation, for random access where a page trigger exists on the network side, the UE can receive a page message carrying slice information of the target network slice sent from the base station.

[0052] In another possible implementation, for a random access process triggered by a PDCCH command, the UE may receive a PDCCH command carrying slice information of this target network slice transmitted from the base station.

[0053] In another possible implementation, when a logical channel identifier is associated with slice information, the UE can determine a logical channel on which data to be transmitted exists, and determine slice information associated with the logical channel based on the channel identifier of the logical channel, and set the slice information as the slice information of the target network slice. Optionally, the association between the logical channel identifier and slice information can include, but is not limited to, different logical channel identifiers corresponding to the same or different slice information.

[0054] In an embodiment of the present disclosure, the number of target network slices that trigger random access may be one or more, and the present disclosure is not limited thereto. When the number of target network slices that trigger random access is multiple, a designated random access resource corresponding to a target network slice with a higher priority may be determined as the first random access resource based on the priority of the target network slice. The priority order of different network slices may be determined by the NAS layer of the UE and provided to the AS layer.

[0055] In an embodiment of the present disclosure, the slice information of the target network slice may include, but is not limited to, at least one of: S-NSSAI (Single-Network Slice Selection Assistance Information), SST (Slice Service Type), SD (Slice Differentiator), slice index, slice identifier (or slice group identifier), and operator-defined access category. Of course, other information that can uniquely identify the slice may also be used, and the present disclosure is not limited thereto.

[0056] In the above embodiments, the UE can determine the slice information of the target network slice in different manners, and then determine the first random access resource to start random access from among the random access resources configured by the resource configuration information based on the slice information of the target network slice and the received resource configuration information.The UE using the slice service can reduce the possibility of collisions occurring in the random access process and improve the success rate of the UE's random access, allowing the UE to quickly complete the random access and obtain the desired slice service.

[0057] In some alternative embodiments, the UE may determine the first random access resource in any of the following manners:

[0058] In the first scheme, among the common random access resources and the designated random access resources corresponding to the target network slice, one is selected as the first random access resource.

[0059] In one possible implementation, based on the resource configuration information and slice information of the target network slice, it is determined that the base station has configured at least a specified random access resource corresponding to this target network slice.

[0060] Then, the designated random access resource corresponding to the target network slice can be set as a candidate resource, and the candidate resource can be directly used as a first random access resource, that is, the UE can initiate random access using the designated random access resource corresponding to the target network slice as the first random access resource.

[0061] In one possible implementation, if the base station determines based on the resource configuration information and the slice information of the target network slice that it has not configured a specified random access resource corresponding to the target network slice but has configured a common random access resource, the common random access resource can be a candidate resource, and the candidate resource can be directly used as the first random access resource.

[0062] In one possible implementation, based on the resource configuration information and the slice information, it is determined that the base station has configured at least a designated random access resource corresponding to the target network slice and the common random access resource, and the UE further determines which resource to select as a candidate resource by combining signal quality, and can further directly select the candidate resource as the first random access resource for initiating random access.

[0063] The UE may measure signal quality, and if the signal quality is greater than a first threshold, may determine a designated random access resource corresponding to the target network slice as a candidate resource, and further determine the candidate resource as a first random access resource.

[0064] Alternatively, the UE may measure the signal quality of the channel, and if the signal quality is equal to or less than a first threshold, the UE may select the common random access resource as the candidate resource, and further select the candidate resource as the first random access resource.

[0065] In the above embodiment, the first threshold may be used to determine whether the UE can select a designated random access resource corresponding to the target network slice as the first random access resource to initiate random access, and the first threshold may be set by the base station.

[0066] In one possible implementation, the first threshold may be set by the base station via a broadcasted first system message. The UE determines the first threshold based on the received first system message for setting the first threshold corresponding to at least one network slice, and the first threshold may be a first threshold corresponding to a target network slice set by the base station or a first threshold corresponding to a network slice group in which the target network slice set by the base station exists.

[0067] Alternatively, the base station may set the same or different first thresholds for each network slice through the first system message, or the base station may set the same or different first thresholds for each network slice group through the first system message, and each network slice group may include two or more network slices.

[0068] For example, the base station may set a first threshold corresponding to network slice 1 as threshold 1 via a system message, a first threshold corresponding to network slice 2 as threshold 2, etc., where threshold 1 and threshold 2 may be the same or different. If the target network slice is network slice 1, the corresponding first threshold is threshold 1.

[0069] Also, for example, the base station can set the first threshold corresponding to network slice group 1 as threshold 3 via a system message, set the first threshold corresponding to network slice group 2 as threshold 4, etc., where network slice group 1 includes network slice 1 and network slice 2, and network slice group 2 includes network slice 3 and network slice 4. When the target network slice is network slice 1, the corresponding first threshold is threshold 3.

[0070] In another possible implementation, the base station can configure the UE with a first threshold value corresponding to at least one network slice through dedicated signaling, where the dedicated signaling can be an RRC (Radio Resource Control) message, i.e., the base station can configure the UE with a first threshold value corresponding to at least one network slice through a first RRC message.

[0071] In addition, if the base station sets a first threshold corresponding to at least one network slice to the UE via both a system message and an RRC message, the UE can use the first threshold set by the RRC message as a reference.

[0072] In the above embodiment, the UE can select a designated random access resource or a common random access resource corresponding to the target network slice to initiate random access based on the first threshold set by the base station and the signal quality, which is simple to implement and has high availability.

[0073] In the second scheme, one of the two-step random access resource and the four-step random access resource is selected as the first random access resource.

[0074] In one possible implementation, if the base station configures only two-step random access resources or only four-step random access resources, the UE can directly select the two-step random access resources or the four-step random access resources configured by the base station as candidate resources, and then directly select the candidate resources as the first random access resources.

[0075] In one possible implementation, the base station configures a two-step random access resource and also configures a four-step random access resource, and when the UE determines that the signal quality is greater than the second threshold, the base station can select the two-step random access resource as a candidate resource, and then directly select the candidate resource as the first random access resource.

[0076] In another possible implementation, the base station configures a two-step random access resource and also configures a four-step random access resource, and when the UE determines that the signal quality is below the second threshold, the base station can select the four-step random access resource as a candidate resource, and then directly select the candidate resource as the first random access resource.

[0077] In one possible implementation, the second threshold may include a second threshold #1, specifically for the UE to determine whether to select the two-step common random access resource as the first random access resource to initiate random access. In this case, the second threshold #1 may be set by the base station via a second system message or a second RRC message. Specifically, the second threshold #1 may be a reference signal received power threshold in the related art, i.e., a legacy RSRP (Reference Signal Receiving Power) threshold, or may be set by the base station as another value different from the legacy RSRP threshold.

[0078] For example, if a base station configures a two-step common random access resource, a four-step common random access resource, and a four-step designated random access resource, when the signal quality is greater than this second threshold #1, the UE can select the two-step common random access resource to initiate random access.

[0079] In one possible implementation, the second threshold may include a second threshold #2 for the UE to determine whether to select the two-step specified random access resource as the first random access resource to initiate random access. The second threshold #2 may also be set by the base station via a second system message or a second RRC message, may be multiplexed with a legacy RSRP threshold, may be set by the base station for each network slice or each network slice group, or may be multiplexed with the first threshold; this disclosure does not limit this. The second threshold #2 may be the same as or different from the second threshold #1; this disclosure does not limit this.

[0080] For example, based on the resource configuration information, it is determined that a two-step designated random access resource, a four-step common random access resource, and a four-step designated random access resource are configured by the base station, and if the signal quality is greater than the second threshold #2, the two-step designated random access resource can be selected as the first random access resource.

[0081] In one possible implementation, the second threshold may be set by the base station via a broadcasted second system message, and may include, but is not limited to, at least one of second threshold #1 and second threshold #2.

[0082] The second system message may be the same as or different from the first system message, and this disclosure is not limited thereto.

[0083] In another possible implementation, the base station can set the second threshold to the UE through dedicated signaling, including but not limited to at least one of second threshold #1 and second threshold #2, and the dedicated signaling can be a second RRC message. The second RRC message can be the same as or different from the first RRC message, and the present disclosure does not limit this.

[0084] Similarly, if the base station sets the second threshold for the UE via both a system message and an RRC message, the UE may comply with the second threshold set by the RRC message.

[0085] In the above embodiment, the UE can select a two-step random access resource or a four-step access resource to initiate random access based on the second threshold set by the base station and the measured signal quality, which is simple to implement and has high availability.

[0086] The above two methods may exist independently. When the candidate resource includes the common random access resource, the designated random access resource corresponding to the target network slice, the two-step random access resource, or the four-step random access resource, the candidate resource is directly selected as the first random access resource.

[0087] In the embodiments of the present disclosure, the above two aspects may be combined, i.e., the third aspect described below. In the case of combination, the priority of the combination is not distinguished. That is, candidate resources may be determined first using the above first method, and then a first random access resource may be determined from the candidate resources based on the second method. Alternatively, candidate resources may be determined first using the above second method, and then a first random access resource may be determined from the candidate resources based on the first method. The specific methods are as follows:

[0088] In a third manner, the first random access resource can be determined after combining the above first and second manners.

[0089] In one possible embodiment, first, according to the above first scheme, a common random access resource or a designated random access resource corresponding to the target network slice is selected as a candidate resource, and then, by combining the above second scheme, a two-step random access resource or a four-step random access resource is selected from the candidate resources, and finally, one composite resource is selected as the first random access resource.

[0090] In one possible implementation, a two-step random access resource or a four-step random access resource may be selected as a candidate resource according to the above second scheme, and then the above first scheme is combined to select a common random access resource or a designated random access resource corresponding to the target network slice from the candidate resources, and finally one composite resource is selected as the first random access resource.

[0091] The following description will be based on different combinations.

[0092] In the first case, the common random access resource is selected as the candidate resource according to the first method, and then the two-step random access resource or the four-step random access resource is selected according to the above-mentioned second method, and finally the two-step common random access resource or the four-step common random access resource is selected as the first random access resource.

[0093] Specifically, after the common random access resource is selected as the candidate resource, if it is determined based on the resource configuration information that only the two-step common random access resource is configured by the base station, the UE directly selects the two-step common random access resource as the first random access resource.

[0094] Alternatively, after the common random access resource is selected as the candidate resource, if it is determined based on the resource configuration information that only the four-step common random access resource is configured by the base station, the UE directly selects the four-step common random access resource as the first random access resource.

[0095] Alternatively, after the common random access resource is designated as a candidate resource, if it is determined based on the resource configuration information that the base station has configured a two-step common random access resource and a four-step common random access resource, the UE can select the two-step common random access resource as the first random access resource if the signal quality of the channel is greater than the second threshold #1. If the signal quality of the channel is equal to or less than the second threshold #1, the UE selects the four-step common random access resource as the first random access resource. The second threshold #1 is used by the UE to determine whether to select the two-step common random access resource as the first random access resource to initiate random access. The second threshold #1 may also be configured by the base station via a second system message or a second RRC message. Specifically, the second threshold #1 may be multiplexed with a legacy RSRP threshold or may be configured by the base station as a value different from the legacy RSRP threshold.

[0096] In the second case, first, it is determined that the designated random access resource corresponding to the target network slice is the candidate resource according to the above-mentioned first method, and then, by combining the above-mentioned second method, a two-step random access resource or a four-step random access resource is selected from the candidate resources, and finally the two-step designated random access resource or the four-step designated random access resource is selected as the first random access resource.

[0097] Specifically, after the random access resource corresponding to the target network slice is set as the candidate resource, if the base station determines based on the resource configuration information that only a two-step designated random access resource or a four-step designated random access resource is set, the UE can directly set the two-step designated random access resource or the four-step designated random access resource as the first random access resource.

[0098] Alternatively, after setting the random access resource corresponding to the target network slice as a candidate resource, if it is determined based on the resource configuration information that the base station has configured a two-step designated random access resource and a four-step designated random access resource, the UE may set the two-step designated random access resource as the first random access resource if the signal quality is greater than a second threshold #2. If the signal quality is equal to or less than the second threshold #2, the UE selects the four-step designated random access resource as the first random access resource. The second threshold #2 is used by the UE to determine whether to select the two-step designated random access resource as the first random access resource to initiate random access. The second threshold may also be set by the base station side via a second system message or a second RRC message, and specifically, may be multiplexed with a legacy RSRP threshold, or may be set by the base station for each network slice or each network slice group, or may be multiplexed with the first threshold; the present disclosure is not limited thereto. The second threshold #2 may be the same as or different from the second threshold #1, and the present disclosure does not limit this.

[0099] In the third case, first, according to the above-mentioned second method, a two-step random access resource is selected as a candidate resource, and then, by combining the above-mentioned first method, a common random access resource or a designated random access resource corresponding to a target network slice is selected from the candidate resources, and finally, the two-step common random access resource or the two-step designated random access resource can be selected as the first random access resource.

[0100] Specifically, if the base station only configures the two-step common random access resource and does not configure the two-step designated random access resource, the UE can directly select the two-step common random access resource as the first random access resource.

[0101] Alternatively, if the base station configures at least two steps of designated random access resources, it directly selects the two steps of designated random access resources as the first random access resource.

[0102] Alternatively, when a two-step common random access resource and a two-step designated random access resource are configured by the base station, the UE preferentially selects the two-step designated random access resource as the first random access resource.

[0103] Alternatively, when a two-step common random access resource and a two-step designated random access resource are configured by the base station, if the channel quality is greater than the second threshold #2, the UE selects the two-step designated random access resource as the first random access resource. Otherwise, the UE selects the two-step common random access resource as the first random access resource. The second threshold #2 is used by the UE to determine whether or not it can select the two-step designated random access resource as the first random access resource to initiate random access. The second threshold #2 may also be configured by the base station via a second system message or a second RRC message. The second threshold may be multiplexed with a legacy RSRP threshold, or may be configured by the base station for each network slice or network slice group, or may be multiplexed with the first threshold; the present disclosure is not limited thereto.

[0104] In the fourth case, first, according to the above-mentioned second method, a four-step random access resource is selected as a candidate resource, and then, by combining the above-mentioned first method, a common random access resource or a designated random access resource corresponding to a target network slice is selected from the candidate resources, and finally, the four-step common random access resource or the four-step designated random access resource can be selected as the first random access resource.

[0105] Specifically, if the base station only configures a 4-step common random access resource and does not configure the 4-step designated random access resource, the UE may select the 4-step common random access resource as the first random access resource.

[0106] Alternatively, if the base station configures at least four steps of designated random access resources, it directly selects the four steps of designated random access resources as the first random access resource.

[0107] Alternatively, when a base station configures a four-step common random access resource and a four-step designated random access resource, the UE selects the four-step designated random access resource as the first random access resource if the channel quality is greater than a first threshold. If the channel quality is equal to or less than the first threshold, the UE selects the four-step common random access resource as the first random access resource. Here, the threshold used by the UE to determine whether the four-step designated random access resource can be selected is directly multiplexed with the first threshold. Of course, it can be set to a value different from the first threshold, but the present disclosure is not limited thereto.

[0108] In the above embodiment, based on any of the above methods, a first random access resource from which random access is started is determined from at least one random access resource set by the resource setting information, thereby enabling the random access to be completed quickly and the desired slice service to be obtained, resulting in high availability.

[0109] In some optional embodiments, the embodiments of the present disclosure provide a random access method that can be used for a user equipment (UE), as shown in FIG. 2, which is a flowchart of a random access method illustrated by an exemplary embodiment, and the method may include the following steps 201 to 205.

[0110] In step 201, resource configuration information transmitted from a base station is received.

[0111] In step 202, slice information of a target network slice that triggers random access is determined.

[0112] In step 203, a first random access resource is determined based on at least the resource configuration information and the slice information.

[0113] In step 204, random access is initiated based on the first random access resource.

[0114] In step 205, in response to meeting a preset fallback condition, no resource fallback is performed.

[0115] In one possible implementation, when random access is initiated using a specified random access resource corresponding to the target network slice as the first random access resource, the pre-set fallback condition is met and no resource fallback is performed.

[0116] In another possible implementation, when random access is initiated using the common random access resource as the first random access resource, the preset fallback condition is met and no resource fallback is performed.

[0117] The preset fallback condition includes any one of the following: the number of failures to initiate random access based on the first random access resource reaches a first fallback count threshold; a first fallback timer expires; or a random access resource fallback instruction message corresponding to the target network slice is received.

[0118] In the above embodiment, if the preset fallback conditions are met, fallback does not need to be performed, resulting in high availability.

[0119] In some optional embodiments, the embodiments of the present disclosure provide a random access method that can be used for a user equipment (UE), as shown in FIG. 3, which is a flowchart of a random access method illustrated by an exemplary embodiment, and the method may include the following steps 301 to 306.

[0120] In step 301, resource configuration information transmitted from a base station is received.

[0121] In step 302, slice information of a target network slice that triggers random access is determined.

[0122] In step 303, a first random access resource is determined based on at least the resource configuration information and the slice information.

[0123] In step 304, random access is initiated based on the first random access resource.

[0124] In step 305, in response to meeting a preset fallback condition, a second random access resource to fall back to is determined.

[0125] and resuming random access based on the second random access resource, wherein the preset fallback condition includes one of: a failure count of initiating random access based on the first random access resource reaches a first fallback count threshold, a first fallback timer expires, or a random access resource fallback indication message corresponding to the target network slice is received.

[0126] In step 306, random access is resumed based on the second random access resource.

[0127] In the above embodiment, when the first random access resource is subject to multiple collisions, the user equipment can perform resource fallback and resume random access based on the second random access resource to which it has fallen back, thereby avoiding the UE from initiating random access using the first random access resource and failing the random access until the maximum number of random access attempts is reached, and improving the success rate of the UE's random access.

[0128] In some alternative embodiments, after initiating random access based on a specific random access resource, if the UE responds by determining that a preset fallback condition is met, the UE may proceed according to one of the following manners: The first method does not perform resource fallback. The second method involves resource fallback.

[0129] In response, the UE can determine the random access resource to fall back to and resume random access based on the random access resource to fall back to.

[0130] The random access resource from which the random access is initiated is different from the random access resource to which the fallback is to be performed. For example, the UE initiates random access based on a first random access resource, and in response to determining that a preset fallback condition is met, the UE resumes random access based on a second random access resource to which the fallback is performed. The second random access resource is different from the first random access resource.

[0131] In the above embodiment, if the preset fallback condition is met, the UE does not perform resource fallback or resumes random access based on the second random access resource that has been fallen back to, thereby avoiding the problem of a high random access failure rate caused by repeatedly using the first random access resource to continuously initiate random access.

[0132] In some alternative embodiments, if the UE meets the preset fallback condition again while resuming random access based on the second random access resource, the UE may not need to perform fallback again in this case, or may continue the fallback, in which case it needs to determine a third random access resource to which it has fallen back and resume random access based on the third random access resource.

[0133] The process of determining the third random access resource is similar to the process of determining the second random access resource, and the description is omitted here. The third random access resource is different from the second random access resource.

[0134] In some alternative embodiments, the above two cases can be combined, i.e., when resuming random access based on the second random access resource, no resource fallback is performed in response to satisfying the preset fallback condition. Alternatively, when resuming random access based on the second random access resource, in response to satisfying the preset fallback condition, a third random access resource to fall back to is determined, and random access is resumed based on the third random access resource. The process of determining the third random access resource is similar to the process of determining the second random access resource, and will be described collectively in subsequent embodiments, but will not be described here.

[0135] In one possible implementation, the preset fallback condition may include a first fallback count threshold indicating a cumulative number of failures to initiate random access based on the first random access resource before falling back to the second random access resource.

[0136] For example, if the first fallback count threshold is N1, when the number of times that the UE fails to initiate random access based on the first random access resource reaches N1, the UE can determine that the preset fallback condition is met and resume random access by falling back to the second random access resource.

[0137] In an embodiment of the present disclosure, the first fallback count threshold may be set by the base station. In one possible implementation, the first fallback count threshold may be set by the base station via a broadcasted third system message. Alternatively, the first fallback count threshold may be multiplexed with a fallback count threshold in an associated mechanism, i.e., a legacy threshold. Alternatively, the first fallback count threshold may be set for each network slice or network slice group by the base station via the third system message.

[0138] In one possible implementation, the first fallback count threshold can be set by the base station via the third system message. Similarly, the first fallback count threshold can be multiplexed with the fallback count threshold in the related mechanism, i.e., the legacy threshold. Alternatively, the first fallback count threshold can be set for each network slice or network slice group by the base station via the third RRC message.

[0139] In another possible implementation, the preset fallback condition may include expiration of a first fallback timer, the first fallback timer being used to indicate a cumulative length of time allowed for random access to be initiated based on the first random access resource before falling back to the second random access resource.

[0140] For example, if the time length of the first fallback timer is t1, when the cumulative time length for which the UE initiates random access based on the first random access resource reaches t1, the UE determines that the preset fallback condition is met, and can fall back to the second random access resource and resume random access.

[0141] In an embodiment of the present disclosure, the first fallback timer may be set by the base station. In one possible implementation, the first fallback timer may be set by the base station via a broadcasted fourth system message. In one possible implementation, the first fallback timer may be set by the base station via a fourth system message. In another possible implementation, the preset fallback condition may include receiving a random access resource fallback indication message corresponding to the target network slice.

[0142] In an embodiment of the present disclosure, the UE determines that the preset fallback condition is met based on the random access resource fallback indication message corresponding to the target network slice sent from the network side, and can thereby fall back to the second random access resource and resume random access.

[0143] It should be noted that the preset fallback conditions may include any one or more combinations of the above, and other possible preset fallback conditions should fall within the scope of protection of the present disclosure.

[0144] In the above embodiment, in addition to satisfying the above-mentioned preset fallback condition, the UE can perform resource fallback and resume random access in the second random access resource to which it has fallen back, thereby improving the success rate of random access.

[0145] In some alternative embodiments, the random access fallback indication message can be used to configure at least one of a second fallback count threshold and a second fallback timer, where the second fallback count threshold is used to indicate the number of failures allowed to initiate random access based on the second random access resource before falling back from the second random access resource to the first random access resource again, and the second fallback timer is used to indicate the cumulative length of time allowed to initiate random access based on the second random access resource before falling back from the second random access resource to the first random access resource again.

[0146] For example, if the second fallback count threshold is N2, when the number of times the UE falls back from the first random access resource to the second random access resource and resumes random access reaches N2 times, and the total number of times that random access is currently initiated has not reached preamble TransMax (maximum number of random access attempts), the UE can fall back to the first random access resource again and initiate random access.

[0147] If the first random access resource is a resource in a designated random access resource spool corresponding to the target network slice, the UE may preferentially fall back to the resource in the designated random access resource spool corresponding to the target network slice. The UE may perform resource fallback again until the preset fallback condition is met again. Alternatively, the UE may fall back to the resource in the designated random access resource spool corresponding to the target network slice, and the total number of times that random access is initiated reaches the maximum number of times that random access is initiated. The UE may report a random access failure message to an upper layer.

[0148] For example, if the timing length of the second fallback timer is t2, the cumulative time length for the UE to fall back from the first random access resource to the second random access resource and initiate random access reaches t2. If the total number of times that random access has been initiated has not yet reached the maximum number of random access attempts, the UE can fall back to the first random access resource and initiate random access again. That is, the UE can preferentially select resources in a designated random access resource spool corresponding to the target network slice to initiate random access again. The UE can perform resource fallback again until the preset fallback condition is met again. Alternatively, the UE can fall back to resources in a designated random access resource spool corresponding to the target network slice, and if the total number of times that random access has been initiated reaches the maximum number of random access attempts, the UE can report a random access failure message to a higher layer.

[0149] In the above embodiment, after the UE falls back to the second random access resource, it initiates random access on the second random access resource until the maximum number of random access attempts is reached, which can avoid the problem of random access failure. After the second random access resource collides at least once, the UE falls back to the first random access resource and initiates random access again, thereby improving the success rate of the UE's random access.

[0150] In some alternative embodiments, if the second fallback count threshold is not set in the random access resource fallback instruction message and the second fallback timer is not set, after the UE falls back from the first random access resource to the second random access resource and fails to perform one random access, if the total number of currently initiated random accesses has not reached the maximum number of random accesses, the UE may fall back to the first random access resource again to resume random access. The first random access resource may include a resource in a specified random access resource spool corresponding to the target network slice.

[0151] In the above embodiment, after the UE falls back to the second random access resource, it initiates random access on the second random access resource until the maximum number of random access attempts is reached, which can avoid the problem of random access failure. After the UE encounters a collision on the second random access resource once, it falls back to the first random access resource to initiate random access again, thereby improving the success rate of the UE's random access.

[0152] In some alternative embodiments, the random access resource fallback indication message may carry a fallbackFactor, which may optionally be a fallback probability value to cause the UE to implement a probability fallback.

[0153] In an embodiment of the present disclosure, after receiving the random access resource fallback indication message, the UE can generate a random number, and determine whether resource fallback is necessary based on the generated random number and the fallback probability value carried in the random access resource fallback indication message. If it determines that resource fallback is necessary, it can resume random access based on the second random access resource to which it has fallen back.

[0154] In one possible implementation, the UE may randomly generate a random number that satisfies a uniform distribution, but is not limited to, the random number being in the range of [0, 1]. If the generated random number is less than the fallback probability value, the UE may perform random access resource fallback, and if the generated random number is greater than or equal to the fallback probability value, the UE may not perform random access resource fallback.

[0155] In another possible embodiment, the UE can generate a random number that satisfies another distribution, and if the generated random number is greater than this fallback probability value, the UE will perform random access resource fallback, and if the generated random number is less than or equal to the fallback probability value, the UE may not perform resource fallback.

[0156] In the above embodiment, the UE can determine whether to perform resource fallback based on the fallback probability value carried in the random access resource fallback indication message and the generated random number, and then resume random access based on the second random access resource to which it has been fallen back, thereby avoiding the UE from starting random access using the first random access resource and failing the random access until the maximum number of random access attempts is reached, thereby achieving the purpose of the UE performing probability fallback, and improving the success rate of the UE's random access.

[0157] In some alternative embodiments, if the random access resource fallback indication message does not carry a fallbackFactor, all UEs receiving this random access resource fallback indication message will perform resource fallback.

[0158] In some alternative embodiments, the base station may carry a random access resource fallback indication message corresponding to the target network slice in the random access response message, or the base station may carry a random access resource fallback indication message corresponding to the target network slice in the fifth RRC message.

[0159] In some alternative embodiments, the UE may determine the second random access resource in a corresponding manner for any of the following cases:

[0160] In the first case, if the first random access resource is a two-step designated random access resource, and if starting random access with the two-step designated random access resource satisfies at least one of the above preset fallback conditions, and the UE determines, based on the resource configuration information and the slice information, that the four-step designated random access resource has been configured by the base station, it may choose to fall back to the four-step designated random access resource to resume random access, that is, take the four-step designated random access resource as the second random access resource.

[0161] In the second case, if the first random access resource is a two-step designated random access resource, the UE may determine, based on the resource configuration information and the slice information, that starting random access using the two-step designated random access resource satisfies at least one of the above-mentioned preset fallback conditions. If the base station determines that the common random access resource is configured based on the resource configuration information and the slice information, the base station may determine a second random access resource from among the common random access resources. That is, the base station may select a two-step common random access resource or a four-step common random access resource as the second random access resource.

[0162] In the third case, if the first random access resource is a two-step designated random access resource, the UE determines that starting random access on the two-step designated random access resource satisfies at least one of the above-mentioned preset fallback conditions, and if the base station determines based on the resource configuration information and the slice information that the common random access resource has been configured, the UE can first fall back to the common random access resource to resume random access based on the first indication information sent from the base station, and then configure information and signal quality based on the resource. The UE determines a second random access resource from the common random access resources. That is, the UE selects a two-step common random access resource or a four-step common random access resource as the second random access resource.

[0163] In one possible implementation, when the base station configures a two-step common random access resource and the signal quality is greater than a third threshold, the UE can select the two-step common random access resource as the second random access resource, and the third threshold is used by the UE to determine whether to fall back to the two-step common random access resource and resume random access.

[0164] Specifically, the base station may set a third threshold corresponding to at least one network slice via the fifth system message or the sixth RRC message. The third threshold may be multiplexed with a legacy RSRP threshold or may be set separately by the base station. Similarly, the base station may set the same or different third thresholds for each network slice, or the base station may set the same or different third thresholds for each network slice group.

[0165] In another possible implementation, if the base station configures a two-step common random access resource and a four-step common random access resource, but the signal quality is below a third threshold, the UE can set the four-step designated random access resource as the second random access resource.

[0166] In another possible implementation, if the base station does not configure four-step common random access resources and the signal quality is below the third threshold, the UE may not fall back.

[0167] The above examples may exist independently or in combination, and the present application is not limited thereto.

[0168] In the fourth case, the first random access resource belongs to the common random access resource, that is, when the UE initiates random access on the common random access resource, if the preset fallback condition is met, the UE does not need to fall back.

[0169] Alternatively, based on the resource configuration information and the slice information, it can be determined that the four-step common random access resource has been configured by the base station, and the four-step common random access resource can be the second random access resource.

[0170] Alternatively, if it is determined that a designated random access resource corresponding to the target network slice has been configured by the base station based on the resource configuration information and the slice information, the second random access resource can be determined from among the designated random access resources corresponding to the target network slice based on the resource configuration information and signal quality.

[0171] Alternatively, if it is determined based on the resource configuration information and the slice information that the base station has configured a designated random access resource corresponding to the target network slice, and if it is determined based on a network side instruction that random access can be resumed by falling back to the designated random access resource corresponding to the target network slice, the second random access resource is determined from among the designated random access resources corresponding to the target network slice based on the resource configuration information and signal quality.

[0172] In one possible implementation, if it is determined based on the resource configuration information that the four-step designated random access resource has been configured by the base station, the four-step designated random access resource can be directly set as the second random access resource.

[0173] In one possible implementation, if it is determined based on the resource configuration information that the base station has configured the four-step designated random access resources and the signal quality is greater than a fourth threshold, the four-step designated random access resources may be set as the second random access resources. The fourth threshold is used to determine whether the UE can resume random access by falling back to the designated random access resources. The fourth threshold may be set by the base station via a sixth system message or a seventh RRC message. The fourth threshold may be multiplexed with a legacy RSRP threshold or may be set separately by the base station. Similarly, the base station may configure the same or different fourth thresholds for each network slice, or the base station may configure the same or different fourth thresholds for each network slice group.

[0174] The above is merely an example. The UE can determine the second random access resource based on any one or multiple combinations of the above, or if resuming random access based on the second random access resource again meets the preset fallback condition, it will not fall back, or will determine the third random access resource based on a similar manner, thereby avoiding the UE continuing to initiate random access on the same random access resource until the maximum number of random access attempts is reached, resulting in random access failure, and improving the success rate of the UE's random access.

[0175] It should also be noted that where the thresholds described above relate to being set by the base station via both system messages and RRC, the UE may base its thresholds on the thresholds set based on the RRC messages.

[0176] The random access scheme provided by the present disclosure will now be described from the base station side.

[0177] The embodiments of the present disclosure provide a random access method that can be used for a base station, as shown in FIG. 4, which is a flowchart of a random access method shown by an exemplary embodiment, and the method may include the following step 401:

[0178] In step 401, the resource configuration information is sent to a user equipment (UE).

[0179] In an embodiment of the present disclosure, the resource configuration information is used to configure at least one of a common random access resource, a designated random access resource corresponding to at least one network slice, a two-step random access resource, a four-step random access resource, a two-step common random access resource, a four-step common random access resource, a two-step designated random access resource, and a four-step designated random access resource.

[0180] In the above embodiment, in order for the UE to determine the first random access resource and initiate random access, the base station can configure the above at least one resource for the UE according to resource configuration information, which has high availability.

[0181] In some alternative embodiments, the base station may configure a first threshold value corresponding to at least one network slice via a system message or an RRC message, and the first threshold value may be used to determine whether the UE can select a designated random access resource corresponding to the target network slice as the first random access resource to initiate random access.

[0182] Specifically, the base station may set the first threshold value via a first system message or a first RRC message.

[0183] In some alternative embodiments, the base station may configure a second threshold corresponding to at least one network slice via a system message or an RRC message, which may be used by the UE to determine whether to select a two-step random access resource as the first random access resource to initiate random access.

[0184] Specifically, the base station may set the second threshold via a second system message or a second RRC message. In one possible implementation, the second threshold may include a second threshold #1, specifically for the UE to determine whether a two-step common random access resource can be selected. In this case, the second threshold #1 may be set by the base station via the second system message or the second RRC message. Specifically, the second threshold #1 may be multiplexed with a reference signal received power threshold in the related art, i.e., a legacy RSRP threshold.

[0185] In one possible implementation, the second threshold may include a second threshold #2 for the UE to determine whether to select the two-step specified random access resource as the first random access resource to initiate random access. The second threshold #2 may also be set by the base station via a second system message or a second RRC message, may be multiplexed with a legacy RSRP threshold, may be set by the base station for each network slice or each network slice group, or may be multiplexed with the first threshold; this disclosure does not limit this. The second threshold #2 may be the same as or different from the second threshold #1; this disclosure does not limit this.

[0186] In some alternative embodiments, the base station may configure a first fallback count threshold corresponding to at least one network slice via a system message or an RRC message, where the first fallback count threshold may be used to indicate a cumulative number of failures that allow random access to be initiated based on the first random access resource before falling back to the second random access resource for random access.

[0187] Specifically, the base station may set the first fallback count threshold via a third system message or a third RRC message. The first fallback count threshold may be multiplexed with the legacy threshold or may be set separately by the base station.

[0188] In some alternative embodiments, the base station may configure a first fallback timer via a system message or an RRC message, the first fallback timer being used to indicate a cumulative length of time during which random access is allowed to be initiated based on the first random access resource before falling back to the second random access resource.

[0189] Specifically, the base station may set the first fallback timer via a fourth system message or a fourth RRC message.

[0190] In some alternative embodiments, the base station may convey a random access resource fallback indication corresponding to the target network slice via a random access response message or a fifth RRC message.

[0191] In some alternative embodiments, the base station may instruct the UE via the first indication information to fall back to the common random access resource and resume random access.

[0192] In some alternative embodiments, the base station may instruct the UE via the second indication information to fall back to a designated random access resource corresponding to the target network slice and resume random access.

[0193] In some alternative embodiments, the base station may configure a third threshold via a system message or an RRC message, which is used by the UE to determine whether to fall back to the two-step common random access resource and resume random access.

[0194] Specifically, the base station may set the third threshold via the fifth system message or the sixth RRC message, and the third threshold may be multiplexed with the legacy RSRP threshold or may be set separately by the base station.

[0195] In some alternative embodiments, the base station may configure a fourth threshold via a system message or an RRC message, which is used to determine whether to resume random access by falling back to the random access resource specified by the UE.

[0196] Specifically, the base station may set the third threshold via the sixth system message or the seventh RRC message. The fourth threshold may be multiplexed with the legacy RSRP threshold, or may be set by the base station for each network slice or each network slice group.

[0197] It should be noted that the above system messages may be the same or different, and the RRC messages may be the same or different, and the present disclosure does not limit this.

[0198] The following further illustrates the random access process of the present application by combining different resource configuration information.

[0199] In the first case, for Case 3 agreed upon in the protocol, the base station configures a 4-step designated random access resource and a 2-step common random access resource for the UE according to resource configuration information. In the related art, when initiating random access, the 4-step designated random access resource is always selected to initiate random access. If the preset fallback condition is met, the base station does not fall back or falls back to the common random access resource.

[0200] According to the random access scheme provided by this application, a four-step designated random access resource or a two-step common random access resource can be selected according to the above scheme to initiate random access. Resource fallback cases include the following two:

[0201] In the first case, starting random access with the four-step common random access resource satisfies the preset fallback condition, and no fallback is required.

[0202] In the second case, if starting random access using the two-step common random access resource meets the preset fallback conditions, the following solution can be adopted:

[0203] Option 1: No fallback.

[0204] Method 2: Fall back to the designated random access resource in step 4 to resume random access.

[0205] Scheme 3: If the signal quality is greater than the fourth threshold, fall back to the designated random access resource in step 4 to resume random access; otherwise, do not fall back.

[0206] Method 4: If it is determined based on the second instruction information sent from the base station that it can fall back to the designated random access resource corresponding to the target network slice, fall back to the designated random access resource in four steps and resume random access; otherwise, do not fall back.

[0207] Method 5: Based on the second instruction information sent from the base station, it is determined that the base station can fall back to the designated random access resource corresponding to the target network slice, and if the signal quality is greater than the fourth threshold, fall back to the designated random access resource in four steps to resume random access; otherwise, do not fall back.

[0208] In the second case, for Case 6 negotiated in the protocol, the base station configures a two-step designated random access resource and a two-step common random access resource for the UE according to resource configuration information. In the related art, when initiating random access, the base station always selects a two-step designated random access resource to initiate random access. If the preset fallback condition is met, the base station does not fall back or falls back to the common random access resource.

[0209] According to the random access solution provided by this application, a two-step designated random access resource or a two-step common random access resource can be selected according to the above scheme to initiate random access.In the case of resource fallback, generally, a two-step designated random access resource can be used to fall back to a two-step common random access resource.The following takes as an example that initiating random access using a two-step designated random access resource satisfies the preset fallback condition.

[0210] Option 1: No fallback.

[0211] Method 2: Fall back to the designated random access resource in step 2 and resume random access.

[0212] Method 3: According to the first indication information sent by the base station, if it is determined that the base station can fall back to the common random access resource, fall back to the specified random access resource in two steps to resume random access; otherwise, do not fall back.

[0213] In the third case, corresponding to Case 8, the base station configures a 2-step designated random access resource, a 2-step common random access resource, and a 4-step common random access resource for the UE according to the resource configuration information. In the related art, when initiating random access, the 4-step designated random access resource is always selected to initiate random access. If a preset fallback condition is met, the 4-step designated random access resource falls back to the 4-step common random access resource.

[0214] According to the random access scheme provided by this application, the random access can be initiated by selecting one of the two-step designated random access resource, the two-step common random access resource, or the four-step common random access resource according to the above scheme. In the case of resource fallback, it can generally include initiating random access with the two-step designated random access resource meeting a preset fallback condition.

[0215] In the first case, initiating random access with the designated random access resource in four steps satisfies the preset fallback condition.

[0216] Option 1: No fallback.

[0217] Method 2: Fall back to the common random access resource in step 4 to resume random access.

[0218] Scheme 3: If the signal quality is greater than the third threshold, fall back to the two-step common random access resource to resume random access; otherwise, fall back to the four-step common random access resource to resume random access.

[0219] Solution 4: According to the first indication information sent by the base station, if it is determined that fallback to the common random access resource is possible, fallback to the two-step common random access resource or the four-step common random access resource to resume random access; otherwise, do not fallback.

[0220] Specifically, if the signal quality exceeds the third threshold, the random access can be resumed by falling back to the two-step common random access resource; otherwise, the random access can be resumed by falling back to the four-step common random access resource.

[0221] In the second case, initiating random access with a two-step common random access resource satisfies the preset fallback condition.

[0222] Method 1: Fall back to the common random access resource in step 4 to resume random access.

[0223] Method 2: Fall back to the designated random access resource in step 4 to resume random access.

[0224] Scheme 3: if the signal quality is greater than the fourth threshold, fall back to the designated random access resource in step 4 to resume random access; otherwise, do not fall back.

[0225] Method 4: Based on the second instruction information sent from the base station, if it is determined that the base station can fall back to the designated random access resource corresponding to the target network slice, fall back to the 4-step designated random access resource and resume random access; otherwise, fall back to the 4-step common random access resource and resume random access.

[0226] In the fourth case, for Case 9 negotiated in the protocol, the base station configures a 4-step designated random access resource, a 2-step common random access resource, and a 4-step common random access resource for the UE according to the resource configuration information. In the related art, there is no method for initiating random access and performing resource fallback.

[0227] According to the random access scheme provided by this application, one can be selected to initiate random access, and in the case of resource fallback, it includes the following three options:

[0228] In the first case, initiating random access with a two-step common random access resource satisfies the preset fallback condition.

[0229] Option 1: No fallback.

[0230] Method 2: Fall back to the designated random access resource in step 4 to resume random access.

[0231] Method 3: Fall back to two-step common random access resources to resume random access.

[0232] Solution 4: According to the first indication information sent by the base station, if it is determined that fallback to the common random access resource is possible, fallback to the two-step common random access resource and resume random access; otherwise, do not fallback.

[0233] In the second case, initiating random access with the specified random access resource in four steps satisfies the preset fallback condition.

[0234] Option 1: No fallback.

[0235] Method 2: Fall back to two-step common random access resources to resume random access.

[0236] Scheme 3: if the signal quality is greater than the third threshold, fall back to two-step common access resources and resume random access; otherwise, do not fall back.

[0237] Solution 4: According to the first indication information sent by the base station, if it is determined that fallback to the common random access resource is possible, fallback to the two-step common random access resource and resume random access; otherwise, do not fallback.

[0238] Method 5: According to the first indication information sent by the base station, it is determined that the base station can fall back to the common random access resource, and if the signal quality is greater than the third threshold, fall back to the two-step common random access resource and resume random access; otherwise, do not fall back.

[0239] In the third case, initiating random access with a two-step common random access resource satisfies the preset fallback condition.

[0240] Option 1: No fallback.

[0241] Method 2: Fall back to the designated random access resource in step 4 to resume random access.

[0242] Scheme 3: If the signal quality is greater than the fourth threshold, fall back to the designated access resource in step 4 and resume random access; otherwise, do not fall back.

[0243] Method 4: Based on the second instruction information sent from the base station, it is determined that the base station can fall back to the designated random access resource corresponding to the target network slice, and if the signal quality is greater than the fourth threshold, fall back to the designated random access resource in four steps to resume random access; otherwise, do not fall back.

[0244] Method 5: If it is determined based on the second instruction information sent from the base station that it is possible to fall back to the designated random access resource corresponding to the target network slice, fall back to the designated random access resource in four steps and resume random access; otherwise, do not fall back.

[0245] The above embodiments are merely illustrative, and the random access method provided by the present application is used to determine the first random access resource and whether to fall back. Other methods for the second random access resource that is fallen back on shall all fall within the scope of protection of the present disclosure.

[0246] The present disclosure further provides an embodiment of an application function realization device corresponding to the above embodiment of the application function realization method.

[0247] Referring to FIG. 5, FIG. 5 is a random access device shown by an exemplary embodiment, the device is applied to a user equipment (UE), a receiving module 501 configured to receive resource configuration information sent from a base station; a first determining module 502 configured to determine slice information of a target network slice that triggers random access; a second determining module 503 configured to determine a first random access resource based on at least the resource configuration information and the slice information; a random access module 504 configured to initiate random access based on the first random access resource; The resource configuration information is used to configure at least one of a common random access resource, a designated random access resource corresponding to at least one network slice, a two-step random access resource, a four-step random access resource, a two-step common random access resource, a four-step common random access resource, a two-step designated random access resource, and a four-step designated random access resource.

[0248] Referring to FIG. 6, FIG. 6 is a random access device shown by an exemplary embodiment, the device is applied to a base station: a sending module 601 configured to send the resource configuration information to a user equipment (UE); The resource configuration information is used to configure at least one of a common random access resource, a designated random access resource corresponding to at least one network slice, a two-step random access resource, a four-step random access resource, a two-step common random access resource, a four-step common random access resource, a two-step designated random access resource, and a four-step designated random access resource.

[0249] The device embodiments essentially correspond to the method embodiments, and therefore, relevant points may be described with reference to some of the method embodiments. The device embodiments described above are merely schematic, and the units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, i.e., they may be located in one place or distributed across multiple network units. Depending on actual needs, some or all of the modules may be selected to achieve the objectives of the solution disclosed herein. Those skilled in the art will be able to understand and implement them without the need for creative labor.

[0250] Accordingly, the present disclosure further provides a computer-readable storage medium having a computer program stored thereon, the computer program being used to perform any of the random access methods described above on the UE side.

[0251] Accordingly, the present disclosure further provides a computer-readable storage medium having a computer program stored thereon, the computer program being used to perform any of the random access methods described above on the base station side.

[0252] Accordingly, the present disclosure further provides a random access device, said device comprising: a processor; a memory for storing instructions executable by the processor; The processor is configured to perform any of the random access methods described above on the UE side.

[0253] 7 is a block diagram of an electronic device 700 according to an exemplary embodiment. For example, the electronic device 700 may be a user equipment such as a mobile phone, a tablet, a digital book reader, a multimedia playback device, a wearable device, an in-vehicle user equipment, an iPad, a smart TV, or the like.

[0254] Referring to FIG. 7, electronic device 700 may include one or more components: a processing component 702, a memory 704, a power component 706, a multimedia component 708, an audio component 710, an input / output (I / O) interface 712, a sensor component 716, and a communication component 718.

[0255] The processing component 702 typically controls the overall operation of the electronic device 700, such as operations related to display, phone calls, data random access, camera operation, and recording. The processing component 702 may include one or more processors 720 for executing instructions to accomplish all or some of the steps of the random access method described above. The processing component 702 may also include one or more modules to facilitate interaction with other components. For example, the processing component 702 may include a multimedia module to facilitate interaction between the processing component 702 and the multimedia component 708. The processing component 702 may also read executable instructions from memory to implement the steps of the random access method provided by each of the above embodiments.

[0256] Memory 704 is configured to store various types of data to support operation on electronic device 700. Examples of this data include instructions for any application programs or methods for operating on electronic device 700, contact data, phone book data, messages, images, videos, etc. Memory 704 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0257] The power component 706 provides power to various components of the electronic device 700. The power component 706 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the electronic device 700.

[0258] The multimedia component 708 includes a screen that provides an output interface between the electronic device 700 and a user. In some embodiments, the multimedia component 708 includes a front camera and / or a rear camera. When the electronic device 700 is in an operational mode, such as a photo mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or may have a focal length and optical zoom capability.

[0259] The audio component 710 is configured to output and / or input audio signals. For example, the audio component 710 includes a microphone (MIC) configured to receive external audio signals when the electronic device 700 is in an operational mode such as a call mode, a record mode, and a voice recognition mode. The received audio signals may be further stored in the memory 704 or transmitted via the communication component 718. In some embodiments, the audio component 710 further includes a speaker for outputting audio signals.

[0260] The I / O interface 712 provides an interface between the processing component 702 and a peripheral interface module, which may be a keyboard, a click wheel, buttons, etc. These buttons may include, but are not limited to, a home button, volume buttons, a start button, and a lock button.

[0261] The sensor component 716 includes one or more sensors to provide various aspects of the electronic device 700 with status assessment. For example, the sensor component 716 can detect the on / off state of the electronic device 700, the relative positioning of components, such as the display and keypad of the electronic device 700, and the positional changes of the electronic device 700 or a component of the electronic device 700, the presence or absence of a user's contact with the electronic device 700, the orientation and position or acceleration / deceleration of the electronic device 700, and temperature changes of the electronic device 700. The sensor component 716 can also include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor component 716 can further include an optical sensor, such as a CMOS or CCD image sensor used for imaging applications. In some embodiments, the sensor component 716 can further include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0262] The communications component 718 is configured to facilitate wired or wireless communications between the electronic device 700 and other devices. The electronic device 700 can access wireless networks based on communications standards, such as Wi-Fi, 2G, 3G, 4G, 6G, or 6G, or a combination thereof. In an exemplary embodiment, the communications component 718 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communications component 718 further includes a near-field communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0263] In an exemplary embodiment, the electronic device 700 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processors (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the random access methods described in any of the above user equipment side.

[0264] In an exemplary embodiment, a non-transitory machine-readable storage medium containing instructions, such as a memory 704 containing instructions, may be provided, which may be executed by a processor 720 of the electronic device 700 to accomplish the random access method described above. For example, the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, or an optical data storage device.

[0265] Accordingly, the present disclosure provides a random access apparatus, a processor; a memory for storing instructions executable by the processor; The processor is configured to perform any of the random access methods described above on the base station side.

[0266] As shown in FIG. 8, FIG. 8 is a schematic block diagram of a random access device 800 shown in accordance with an exemplary embodiment. For example, the device 400 may be provided as a base station. Referring to FIG. 8, the device 800 includes a processing component 822, a wireless transmit / receive component 824, an antenna component 826, and a signal processing unit specific to the wireless interface, and the processing component 822 may further include one or more processors. can be done.

[0267] One processor of the processing component 822 may be configured to perform any of the random access methods described above on the base station side.

[0268] Those skilled in the art will readily appreciate other embodiments of the present disclosure after studying the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure, which variations, uses, or adaptations follow the general principles of the present disclosure and include common knowledge or customary technical means not disclosed in the present disclosure. The specification and examples are considered to be exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0269] It should be noted that the present disclosure is not limited to the exact structure described above and shown in the drawings, and various modifications and variations can be made without departing from the scope of the present disclosure, which is limited only by the appended claims.

Claims

1. A random access method, comprising: The method is used for a user equipment (UE), the method comprising: receiving resource configuration information transmitted from a base station; Determining slice information of a target network slice for triggering random access; determining a first random access resource based on at least the resource configuration information and the slice information; initiating random access based on the first random access resource; The resource configuration information is used to configure at least one of a common random access resource, a designated random access resource corresponding to at least one network slice, a two-step random access resource, a four-step random access resource, a two-step common random access resource, a four-step common random access resource, a two-step designated random access resource, and a four-step designated random access resource; A random access method characterized by:

2. The step of determining a first random access resource based on at least the resource configuration information and the slice information includes: determining, based on the resource configuration information and the slice information, that a designated random access resource corresponding to at least the target network slice has been configured by the base station; determining a designated random access resource corresponding to the target network slice as a candidate resource; determining the first random access resource based on the candidate resources; 2. The method of claim 1 .

3. The step of determining a first random access resource based on at least the resource configuration information and the slice information includes: determining, based on the resource configuration information and the slice information, that a designated random access resource corresponding to the target network slice has not been configured by the base station, but a common random access resource has been configured; selecting the common random access resource as a candidate resource; determining the first random access resource based on the candidate resources; 2. The method of claim 1 .

4. The step of determining a first random access resource based on at least the resource configuration information and the slice information includes: determining, based on the resource configuration information and the slice information, that at least a designated random access resource corresponding to the target network slice and the common random access resource have been configured by the base station; In response to determining that the signal quality is greater than a first threshold, determining a designated random access resource corresponding to the target network slice as a candidate resource; in response to determining that the signal quality is less than or equal to a first threshold, selecting the common random access resource as a candidate resource; determining the first random access resource based on the candidate resources; 2. The method of claim 1, comprising:

5. receiving a first system message broadcast by the base station, the first system message being used to set the first threshold corresponding to at least one network slice; or receiving a first RRC message transmitted from the base station, wherein the first RRC message is used to set the first threshold corresponding to at least one network slice; and 5. The method of claim 4.

6. The step of determining a first random access resource based on at least the resource configuration information and the slice information includes: determining, based on the resource configuration information, that the two-step random access resource or the four-step random access resource is configured by the base station; selecting the two-step random access resource or the four-step random access resource as a candidate resource; determining the first random access resource based on the candidate resources; Including, 2. The method of claim 1 .

7. The step of determining a first random access resource based on at least the resource configuration information and the slice information includes: The base station determines the two-step random access resource and the four-step random access resource based on the resource configuration information and the slice information; in response to determining that the signal quality is greater than a second threshold, selecting the two-step random access resource as a candidate resource; in response to determining that the signal quality is equal to or less than a second threshold, selecting the random access resources of the four steps as candidate resources; determining the first random access resource based on the candidate resources; Including, 2. The method of claim 1 .

8. receiving a second system message broadcast by the base station, wherein the second system message is used to set the second threshold corresponding to at least one network slice; or receiving a second RRC message sent from the base station, wherein the second RRC message is used to set the second threshold corresponding to at least one network slice; including any of the following:

5. The method of claim 4.

9. determining the first random access resource based on the candidate resources, If the candidate resource includes any of the common random access resource, the designated random access resource corresponding to the target network slice, the two-step random access resource, or the four-step random access resource, the candidate resource is the first random access resource; When the candidate resources include the common random access resource, the two-step common random access resource or the four-step common random access resource is the first random access resource; If the candidate resources include a designated random access resource corresponding to the target network slice, the designated random access resource of the second step or the designated random access resource of the fourth step is set as the first random access resource; When the candidate resources include two-step random access resources, the first random access resource is a common random access resource of the two steps or a designated random access resource of the two steps; When the candidate resources include four-step random access resources, the four-step common random access resources or the four-step designated random access resources are the first random access resources; including any of the following: The method according to any one of claims 2 to 8.

10. When the candidate resources include a designated random access resource corresponding to the target network slice, the step of setting the designated random access resource of the second step or the designated random access resource of the fourth step as the first random access resource includes: If the candidate resources include designated random access resources corresponding to the target network slice, determining based on the resource configuration information that at least the two steps of designated random access resources and the four steps of designated random access resources have been configured by the base station; in response to determining that the signal quality is greater than a second threshold, selecting the designated random access resource of the two steps as the first random access resource; or in response to determining that the signal quality is equal to or less than the second threshold, determining that the designated random access resource of the four steps is the first random access resource; Including, 10. The method of claim 9.

11. When the candidate resources include two-step random access resources, the step of selecting the two-step common random access resource or the two-step designated random access resource as the first random access resource includes: If the candidate resources include two-step random access resources, determining that the two-step common random access resources and the two-step designated random access resources are configured by the base station according to the resource configuration information; the designated random access resource of step 2 is the first random access resource; or in response to determining that the signal quality is greater than a second threshold, selecting the designated random access resource of the two steps as the first random access resource; or in response to determining that the signal quality is equal to or less than a second threshold, selecting a common random access resource for the two steps as the first random access resource; Including, 10. The method of claim 9.

12. When the candidate resources include four-step random access resources, the step of setting the four-step common random access resource or the four-step designated random access resource as the first random access resource based on the resource setting information includes: If the candidate resources include four-step random access resources, determining that the four-step common random access resources and the four-step designated random access resources are configured by the base station according to the resource configuration information; The random access resource designated in the fourth step is set as the first random access resource; or in response to determining that the signal quality is greater than a first threshold, selecting the designated random access resource of the four steps as the first random access resource; or in response to determining that the signal quality is equal to or less than a first threshold, selecting a common random access resource for the four steps as the first random access resource; Including, 10. The method of claim 9.

13. The common random access resource is a random access resource shared among a plurality of UEs, and the plurality of UEs includes UEs that support a network slice function and UEs that do not support the network slice function, or the plurality of UEs includes UEs that support the network slice function.

2. The method of claim 1 .

14. and further comprising not performing resource fallback in response to satisfying a preset fallback condition.

2. The method of claim 1 .

15. The step of not performing resource fallback in response to satisfying the preset fallback condition includes: When starting random access using a designated random access resource corresponding to the target network slice as the first random access resource, not performing resource fallback in response to satisfying the preset fallback condition; or When a random access is initiated using the common random access resource as the first random access resource, not performing resource fallback in response to the preset fallback condition being satisfied; including any of the following:

15. The method of claim 14.

16. determining a second random access resource to fall back to in response to satisfying a preset fallback condition; resuming random access based on the second random access resource; further comprising:

2. The method of claim 1 .

17. not performing resource fallback in response to satisfying the preset fallback condition when resuming random access based on the second random access resource; or determining a third random access resource to fall back to in response to satisfying the preset fallback condition when resuming random access based on the second random access resource; resuming random access based on the third random access resource; further comprising any of the following:

17. The method of claim 16.

18. The preset fallback condition is: a number of failures to initiate random access based on the first random access resource reaches a first fallback number threshold; The first fallback timer expires, or receiving a random access resource fallback indication message corresponding to the target network slice; and including any of the following:

18. The method according to any one of claims 14 to 17.

19. receiving a third system message broadcasted by the base station, wherein the third system message is used to set the first fallback count threshold corresponding to at least one network slice; or receiving a third RRC message sent from the base station, wherein the third RRC message is used to set the first fallback count threshold corresponding to at least one network slice; further comprising any of the following:

20. The method of claim 18.

20. receiving a fourth system message broadcast by the base station, the fourth system message being used to set the first fallback timer; or receiving a fourth RRC message sent from the base station, the fourth RRC message being used to set the first fallback timer; further comprising any of the following:

20. The method of claim 18.

21. The random access resource fallback indication message corresponding to the target network slice is used to set at least one of a second fallback count threshold and a second fallback timer; 20. The method of claim 18.

22. A random access resource fallback instruction message corresponding to the target network slice carries a fallback probability value; The step of resuming random access based on the second random access resource to which the fallback is applied includes: in response to determining to perform a fallback based on the generated random number and the fallback probability value, resuming random access based on the second random access resource to which the fallback has been performed.

20. The method of claim 18.

23. receiving a random access response message carrying a random access resource fallback indication message corresponding to the target network slice; or receiving a fifth RRC message carrying a random access resource fallback indication message corresponding to the target network slice; further comprising any of the following:

20. The method of claim 18.

24. the first random access resource is the designated random access resource of the second step; The step of determining a second random access resource to fall back to comprises: determining that the four steps of designated random access resources have been configured by the base station based on the resource configuration information and the slice information; a step of setting the designated random access resource in the fourth step as the second random access resource; Including, 17. The method of claim 16.

25. the first random access resource is the designated random access resource of the second step; The step of determining a second random access resource to fall back to comprises: determining that the common random access resource is configured by the base station based on the resource configuration information and the slice information; determining the second random access resource from the common random access resources based on the resource configuration information and signal quality; Including, 17. The method of claim 16.

26. the first random access resource is the designated random access resource of the second step; The step of determining a second random access resource to fall back to comprises: determining that the common random access resource is configured by the base station based on the resource configuration information and the slice information; determining, based on first indication information sent from the base station, that random access can be resumed by falling back to the common random access resource; determining the second random access resource from the common random access resources based on the resource configuration information and signal quality; Including, 17. The method of claim 16.

27. determining the second random access resource from the common random access resources based on the resource configuration information and signal quality, determining, based on the resource configuration information, that the two-step common random access resources have been configured by the base station; determining that the signal quality is greater than a third threshold; a step of setting a common random access resource of the two steps as the second random access resource; Including, 27. The method of claim 25 or 26.

28. receiving a fifth system message transmitted from the base station, wherein the fifth system message is used to set a third threshold corresponding to at least one network slice; or receiving a sixth RRC message sent from the base station, wherein the sixth RRC message is used to set a third threshold corresponding to at least one network slice; further comprising any of the following:

28. The method of claim 27.

29. the first random access resource belongs to the common random access resource; The step of determining a second random access resource to fall back to comprises: determining that the four-step common random access resource has been configured by the base station according to the resource configuration information and the slice information; a step of setting the common random access resource of the four steps as the second random access resource; Including, 17. The method of claim 16.

30. the first random access resource belongs to the common random access resource; The step of determining a second random access resource to fall back to comprises: determining, based on the resource configuration information and the slice information, that a designated random access resource corresponding to the target network slice has been configured by the base station; determining the second random access resource from among designated random access resources corresponding to the target network slice based on the resource configuration information and signal quality; 17. The method of claim 16.

31. the first random access resource belongs to the common random access resource; The step of determining a second random access resource to fall back to comprises: determining, based on the resource configuration information and the slice information, that a designated random access resource corresponding to the target network slice has been configured by the base station; determining, based on second indication information sent from the base station, that random access can be resumed by falling back to a designated random access resource corresponding to the target network slice; determining the second random access resource from among designated random access resources corresponding to the target network slice based on the resource configuration information and signal quality; 17. The method of claim 16.

32. determining the second random access resource from among designated random access resources corresponding to the target network slice based on the resource configuration information and signal quality, determining that the specified random access resources of the four steps have been configured by the base station based on the resource configuration information; a step of setting the designated random access resource in the fourth step as the second random access resource; Including, 32. The method of claim 30 or 31.

33. determining the second random access resource from among designated random access resources corresponding to the target network slice based on the resource configuration information and signal quality, determining that the specified random access resources of the four steps have been configured by the base station based on the resource configuration information; determining that the signal quality is greater than a fourth threshold; a step of setting the designated random access resource in the fourth step as the second random access resource; Including, 32. The method of claim 30 or 31.

34. receiving a sixth system message broadcast by the base station, wherein the sixth system message is used to set a fourth threshold corresponding to at least one network slice; or receiving a seventh RRC message sent from the base station, wherein the seventh RRC message is used to set a fourth threshold corresponding to at least one network slice; further comprising any of the following:

34. The method of claim 33.

35. A random access method, the method being used for a base station, transmitting resource configuration information to a user equipment (UE); The resource configuration information is used to configure at least one of a common random access resource, a designated random access resource corresponding to at least one network slice, a two-step random access resource, a four-step random access resource, a two-step common random access resource, a four-step common random access resource, a two-step designated random access resource, and a four-step designated random access resource; A random access method characterized by:

36. broadcasting a first system message, wherein the first system message is used to set a first threshold corresponding to at least one network slice; or sending a first RRC message to the UE, wherein the first RRC message is used to set a first threshold corresponding to at least one network slice; further comprising any of the following:

36. The method of claim 35.

37. broadcasting a second system message, wherein the second system message is used to set a second threshold corresponding to at least one network slice; or sending a second RRC message to the UE, wherein the second RRC message is used to set a second threshold corresponding to at least one network slice; further comprising any of the following:

36. The method of claim 35.

38. Broadcasting a third system message, wherein the third system message is used to set a first fallback count threshold corresponding to at least one network slice; or sending a third RRC message to the UE, wherein the third RRC message is used to configure the first fallback count threshold corresponding to at least one network slice; further comprising any of the following:

36. The method of claim 35.

39. broadcasting a fourth system message, wherein the fourth system message is used to set a first fallback timer; or sending a fourth RRC message to the UE, wherein the fourth RRC message is used to configure the first fallback timer; further comprising any of the following:

36. The method of claim 35.

40. sending a random access response message carrying a random access resource fallback indication message corresponding to the target network slice to the UE; or sending a fifth RRC message carrying a random access resource fallback indication message corresponding to the target network slice to the UE; further comprising any of the following:

36. The method of claim 35.

41. and further comprising: sending first indication information to the UE, the first indication information being used to indicate that the UE can fall back to a common random access resource and resume random access.

36. The method of claim 35.

42. and further comprising: sending second indication information to the UE, the second indication information being used to indicate that the UE can fall back to a designated random access resource corresponding to a target network slice and resume random access.

36. The method of claim 35.

43. broadcasting a fifth system message, wherein the fifth system message is used to set a third threshold corresponding to at least one network slice; or sending a sixth RRC message to the UE, wherein the sixth RRC message is used to set a third threshold corresponding to at least one network slice; further comprising any of the following:

36. The method of claim 35.

44. broadcasting a sixth system message, wherein the sixth system message is used to set a fourth threshold corresponding to at least one network slice; or sending a seventh RRC message to the UE, wherein the seventh RRC message is used to configure a fourth threshold corresponding to at least one network slice; further comprising any of the following:

36. The method of claim 35.

45. A random access device, the device being used for a user equipment (UE), a receiving module configured to receive resource configuration information sent from a base station; a first determination module configured to determine slice information of a target network slice that triggers random access; a second determination module configured to determine a first random access resource based on at least the resource configuration information and the slice information; and a random access module configured to initiate random access based on the first random access resource; The resource configuration information is used to configure at least one of a common random access resource, a designated random access resource corresponding to at least one network slice, a two-step random access resource, a four-step random access resource, a two-step common random access resource, a four-step common random access resource, a two-step designated random access resource, and a four-step designated random access resource; A random access device characterized by:

46. A random access device, the device being used for a base station; a transmitting module configured to transmit resource configuration information to a user equipment (UE); The resource configuration information is used to configure at least one of a common random access resource, a designated random access resource corresponding to at least one network slice, a two-step random access resource, a four-step random access resource, a two-step common random access resource, a four-step common random access resource, a two-step designated random access resource, and a four-step designated random access resource; A random access device characterized by:

47. A computer-readable storage medium on which a computer program is stored, The computer program is used to execute the random access method according to any one of claims 1 to 34. A computer-readable storage medium comprising:

48. A computer-readable storage medium having a computer program stored thereon, the computer program being used to execute the random access method according to any one of claims 35 to 44. A computer-readable storage medium comprising:

49. A random access device, comprising: a processor; a memory that stores instructions executable by the processor; The processor is configured to execute the random access method according to any one of claims 1 to 34 above. A random access device characterized by:

50. A random access device, comprising: a processor; a memory that stores instructions executable by the processor; The processor is configured to perform the random access method according to any one of claims 35 to 44 above. A random access device characterized by:

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