WO2023279264A1 - 随机接入方法及装置、存储介质 - Google Patents

随机接入方法及装置、存储介质 Download PDF

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Publication number
WO2023279264A1
WO2023279264A1 PCT/CN2021/104834 CN2021104834W WO2023279264A1 WO 2023279264 A1 WO2023279264 A1 WO 2023279264A1 CN 2021104834 W CN2021104834 W CN 2021104834W WO 2023279264 A1 WO2023279264 A1 WO 2023279264A1
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Prior art keywords
random access
resource
access resource
resources
network slice
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PCT/CN2021/104834
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English (en)
French (fr)
Inventor
刘晓菲
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北京小米移动软件有限公司
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Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202180001902.5A priority Critical patent/CN115777230A/zh
Priority to PCT/CN2021/104834 priority patent/WO2023279264A1/zh
Priority to EP21948762.6A priority patent/EP4369837A4/en
Priority to US18/576,013 priority patent/US20240340963A1/en
Priority to KR1020247004246A priority patent/KR20240028524A/ko
Priority to JP2024500328A priority patent/JP2024527572A/ja
Publication of WO2023279264A1 publication Critical patent/WO2023279264A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • H04W74/006Transmission of channel access control information in the downlink, i.e. towards the terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • H04W74/0836Random access procedures, e.g. with 4-step access with 2-step access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/08Testing, supervising or monitoring using real traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/18Selecting a network or a communication service
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • H04W74/0841Random access procedures, e.g. with 4-step access with collision treatment
    • H04W74/085Random access procedures, e.g. with 4-step access with collision treatment collision avoidance

Definitions

  • the present disclosure relates to the communication field, and in particular, to a random access method and device, and a storage medium.
  • Network slicing can provide a complete end-to-end virtual network for specific users.
  • 5G (5th generation mobile networks, 5th generation mobile communication technology) network slices can provide differentiated services for users with different service requirements.
  • different service requirements include but are not limited to latency, reliability, capacity, isolation and other functions.
  • the carrier network will not only serve the information consumption business characterized by Best Effort (best effort) transmission, but also meet the production control services with deterministic transmission as the communication demand, and provide services with different communication needs.
  • a network slice can be composed of RAN (Radio Access Network, wireless access network) part and CN (Core Network, core network) part.
  • the implementation of network slicing depends on the principle that the traffic of different slices is processed by different PDU (Protocol Data Unit, protocol data unit) sessions.
  • the network can implement different network slices by scheduling and providing different L1 layer/L2 layer configurations.
  • the random access process includes: contention random access and non-contention random access.
  • contention random access the random access request resource (that is, the resource used by MSG1) is not dedicated to a UE (User Equipment, user equipment), that is, multiple users may initiate random access on the same time-frequency domain resource Request, the relationship between the base station and the UE needs to be established through the contention resolution process;
  • non-contention random access the random access request resource is allocated by the base station to the specified UE, and the base station only needs to identify the random access resource dedicated to the UE , the UE can be uniquely identified.
  • embodiments of the present disclosure provide a random access method and device, and a storage medium.
  • a random access method is provided, the method is used for a user equipment UE, including:
  • the resource configuration information is used to configure at least one of the following: public random access resources; designated random access resources corresponding to at least one network slice; two-step random access resources; four-step random access resources; Random access resources; four-step public random access resources; two-step designated random access resources; four-step designated random access resources.
  • a random access method is provided, the method is used in a base station, including:
  • the resource configuration information is used to configure at least one of the following: public random access resources; designated random access resources corresponding to at least one network slice; two-step random access resources; four-step random access resources; Random access resources; four-step public random access resources; two-step designated random access resources; four-step designated random access resources.
  • a random access apparatus is provided, the apparatus is used for a user equipment UE, including:
  • a receiving module configured to receive resource configuration information sent by the base station
  • a first determining 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 at least on 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 the following: public random access resources; designated random access resources corresponding to at least one network slice; two-step random access resources; four-step random access resources; Random access resources; four-step public random access resources; two-step designated random access resources; four-step designated random access resources.
  • a random access device is provided, the device is used in a base station, including:
  • a sending module configured to send the resource configuration information to a user equipment UE
  • the resource configuration information is used to configure at least one of the following: public random access resources; designated random access resources corresponding to at least one network slice; two-step random access resources; four-step random access resources; Random access resources; four-step public random access resources; two-step designated random access resources; four-step designated random access resources.
  • a computer-readable storage medium stores a computer program, and the computer program is used to perform the random access described in any one of the UE side. method.
  • a computer-readable storage medium stores a computer program, and the computer program is used to execute the random access method described in any one of the above-mentioned base stations .
  • a random access device including:
  • memory for storing processor-executable instructions
  • the processor is configured to execute any one of the random access methods described above on the UE side.
  • a random access device including:
  • memory for storing processor-executable instructions
  • the processor is configured to execute any one of the random access methods described above on the base station side.
  • the first random access resource for initiating random access may be determined based on the slice information of the target network slice used for the user equipment to initiate random access and the resource configuration information sent by the network side, wherein the resource configuration information Can be used to configure at least one of the following: public random access resources; designated random access resources corresponding to the target network slice; two-step random access resources; four-step random access resources; two-step public random access resources; Four steps of public random access resources; two steps of designated random access resources; four steps of designated random access resources, so that the UE can determine the first random access resource among the resources configured in the resource configuration information, thereby quickly completing random access resources. input to obtain the desired slicing service.
  • the user equipment may perform resource fallback, and re-initiate random access based on the second random access resource to which it falls back. This prevents the UE from initiating random access on the first random access resource until the maximum number of times of random access is reached, resulting in random access failure, and improves the success rate of UE random access.
  • Fig. 1 is a schematic flowchart of a random access method according to an exemplary embodiment.
  • Fig. 2 is a schematic flowchart of another random access method according to an exemplary embodiment.
  • Fig. 3 is a schematic flowchart of another random access method according to an exemplary embodiment.
  • Fig. 4 is a schematic flowchart of another random access method according to an exemplary embodiment.
  • Fig. 5 is a block diagram of a random access device according to an exemplary embodiment.
  • Fig. 6 is a block diagram showing another random access device according to an exemplary embodiment.
  • Fig. 7 is a schematic structural diagram of a random access device according to an exemplary embodiment of the present disclosure.
  • Fig. 8 is a schematic structural diagram of another random access device according to an exemplary embodiment of the present disclosure.
  • first, second, third, etc. may be used in the present disclosure to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present disclosure, first information may also be called second information, and similarly, second information may also be called first information. Depending on the context, the word “if” as used herein may be interpreted as “at” or “when” or “in response to a determination.”
  • a UE using a slice service may initiate random access based on a common RACH (Random Access Channel, random access channel) resource.
  • RACH Random Access Channel
  • a separate designated RACH resource corresponding to the network slice can be configured for each network slice or each network slice group.
  • a two-step random access method was introduced, by merging Msg1 (message 1) and Msg3 (message 3) in the four-step random access method into MsgA (message A), and The two downlink channels Msg2 (message 2) and Msg4 (message 4) are merged into a new MsgB (message B), which simplifies the random access process and reduces delay and signaling overhead.
  • UE User Equipment, user equipment
  • the two-step random access method when the number of retransmissions of MsgA reaches a certain threshold, RA type switching will be triggered, and the four-step random access method will be switched to repeat the access attempt of Msg1.
  • the threshold is configured by the base station in a system message.
  • a fallback mechanism is also specified.
  • the trigger condition of the fallback mechanism is when the preamble (preamble) in MsgA can be detected correctly, but the PUSCH (Physical Uplink Shared Channel, physical uplink shared channel) message demodulation fails, at this time the base station feeds back a fallbackRAR (fallback Random Access Response, fallback random response message), similar to msg2 of the four-step random access method, used to schedule Msg3 sent.
  • a fallbackRAR Fallback Random Access Response, fallback random response message
  • a suitable random access resource is selected to initiate random access.
  • resource fallback how to implement resource fallback still needs to be further improved.
  • the present disclosure provides the following random access scheme.
  • the random access solution provided by the present disclosure will be introduced first from the user equipment side.
  • FIG. 1 is a flowchart of a random access method according to an embodiment, and the method may include the following steps :
  • step 101 resource configuration information sent by a base station is received.
  • the resource configuration information is used to configure at least one of the following: public random access resources; designated random access resources corresponding to at least one network slice; two-step random access resources; four-step random access resources; two-step public random access resources; four-step public random access resources; two-step designated random access resources; four-step designated random access resources.
  • the common random access resource is a random access resource shared among multiple UEs.
  • the multiple UEs include UEs supporting the network slicing function and UEs not supporting the network slicing function. That is, the common random access resource is a random access resource shared by UEs supporting the network slicing function and UEs not supporting the network slicing function.
  • the multiple UEs only include UEs that support the network slicing function. That is, the common random access resource is a random access resource shared among UEs supporting the network slicing function.
  • the designated random access resources corresponding to at least one network slice refer to resources configured separately for each network slice and used for UEs under the network slice to initiate random access.
  • the designated random access resources corresponding to network slice 1 include resource 1
  • the designated random access resources corresponding to network slice 2 include resource 2, and so on.
  • the designated random access resource corresponding to at least one network slice is a resource configured for each network slice group for UEs under each network slice in the network slice group to initiate random access.
  • each network slice group may include two or more network slices.
  • the two-step random access resources refer to the resources that can be used when the UE adopts the two-step random access method.
  • the four-step random access resources refer to the resources that can be used by the UE when adopting the four-step random access manner.
  • the two-step common random access resource refers to a combined resource that is shared among multiple UEs and can be used when the two-step random access method is adopted.
  • the four-step common random access resource refers to a combined resource that is shared among multiple UEs and can be used when the four-step random access method is adopted.
  • Two-step designated random access resources refer to random access resources provided to UEs in a certain network slice, and combined resources that can be used when the two-step random access method is adopted.
  • the four-step designated random access resource refers to the random access resource provided to the UE of a certain network slice, and the combined resource that can be used when the four-step random access method is adopted.
  • step 102 slice information of a target network slice that triggers random access is determined.
  • the target network slice is a network slice used for the user equipment to initiate random access, that is, the target network slice may be a network slice where the user equipment is triggered to initiate random access.
  • a first random access resource is determined based at least on the resource configuration information and the slice information.
  • step 104 random access is initiated based on the first random access resource.
  • the first random access resource configured in the resource configuration information may be determined to be the first network slice to initiate random access. Random access resources, reducing the possibility of collisions between UEs using a certain slice service and other UEs during random access, improving the success rate of UE random access, so that UE can quickly complete random access and obtain the desired slice Serve.
  • the UE may receive resource configuration information in any of the following manners.
  • the UE may receive a system message carrying resource configuration information delivered by the base station side.
  • the UE may receive the PDCCH instruction carrying the resource configuration information.
  • PDCCH Physical Downlink Control Channel
  • the UE has established an RRC connection with the base station, that is, when the RRC message sent by the base station triggers the UE to initiate random access, the UE can receive the radio resource control RRC link carrying the resource configuration information. information.
  • the resource configuration information is used to configure at least one of the following: public random access resources; designated random access resources corresponding to at least one network slice; two-step random access resources; four-step random access resources; two-step public random access resources; four-step public random access resources; two-step designated random access resources; four-step designated random access resources.
  • the UE can obtain resource configuration information in various ways, which improves the success rate of random access and has high usability.
  • the UE may determine slice information of a target network slice that triggers random access in any of the following manners, but not limited to.
  • the UE can obtain the target sent by the NAS layer to the AS layer when the NAS (Non-Access Stratum, non-access) layer requests the AS (Access Stratum, access) layer to initiate an RRC connection.
  • the slice information of the network slice can be obtained.
  • the UE may receive a paging message carrying slice information of a target network slice delivered by the base station.
  • the UE may receive the PDCCH command carrying the slice information of the target network slice delivered by the base station.
  • the UE may determine that there is a logical channel with data to be transmitted, and determine the slice information associated with the logical channel according to the channel identifier of the logical channel , use the slice information as the slice information of the target network slice.
  • the association between logical channel identifiers and slice information may include, but is not limited to, that different logical channel identifiers correspond to the same or different slice information.
  • the number of target network slices that trigger random access may be one or more, which is not limited in the present disclosure.
  • the designated random access resource corresponding to the target network slice with high priority can be determined as the first random access resource based on the priority of the target network slice .
  • the priority sequence of different network slices may be determined by the NAS layer of the UE and provided to the AS layer.
  • the slice information of the target network slice may include but not limited to at least one of the following: S-NSSAI (Single-Network Slice Selection Assistance Information, single network slice selection assistance information), SST (Slice Service Type, Slice service type), SD (Slice Differentiator, slice differential identifier), slice index, slice identifier (or slice group identifier), operator-defined access category (operator-defined access type).
  • S-NSSAI Single-Network Slice Selection Assistance Information
  • SST Single-Network Slice Selection Assistance Information
  • SST Slice Service Type, Slice service type
  • SD Slice Differentiator, slice differential identifier
  • slice index slice identifier
  • slice group identifier or slice group identifier
  • operator-defined access category operator-defined access type
  • the UE may determine the slice information of the target network slice in different ways, and then determine to initiate random access in the random access resources configured in the resource configuration information according to the slice information of the target network slice and the received resource configuration information.
  • the input first random access resource. Reduce the possibility of UEs using the slice service colliding during the random access process, improve the success rate of UE random access, so that the UE can quickly complete random access and obtain the desired slice service.
  • the UE may determine the first random access resource in any of the following manners.
  • one item is selected as the first random access resource among the common random access resources and the designated random access resources corresponding to the target network slice.
  • the base station if based on the resource configuration information and slice information of the target network slice, it is determined that the base station has at least configured the designated random access resource corresponding to the target network slice.
  • the designated random access resource corresponding to the target network slice may be used as a candidate resource. Further, the candidate resource may be directly used as the first random access resource. That is, the UE may use the designated random access resource corresponding to the target network slice as the first random access resource to initiate random access.
  • the base station if based on the resource configuration information and the slice information of the target network slice, it is determined that the base station has not configured the designated random access resources corresponding to the target network slice, but has configured public random access resources, then the The public random access resource is used as a candidate resource. Further, the candidate resource may be directly used as the first random access resource.
  • the base station 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 In combination with the signal quality, it may be further determined which resource is selected as the candidate resource, and then the candidate resource is directly used as the first random access resource for initiating random access.
  • the UE may measure the signal quality, and if the signal quality is greater than the first threshold value, use the designated random access resource corresponding to the target network slice as a candidate resource. Furthermore, the candidate resource is used as the first random access resource.
  • the UE measures the signal quality of the channel, and in the case that the signal quality is less than or equal to the first threshold, the common random access resource may be used as a candidate resource. Furthermore, the candidate resource is used as the first random access resource.
  • the first threshold value may be used by the UE to determine whether the designated random access resource corresponding to the target network slice can be selected as the first random access resource to initiate random access.
  • the first threshold can be configured by the base station side.
  • the configuration may be configured by the base station through a broadcasted first system message.
  • the UE determines the first threshold value based on the received first system message for configuring the first threshold value corresponding to at least one network slice, and the first threshold value may be configured by the base station and the target network slice The corresponding first threshold value, or the first threshold value corresponding to the network slice group where the target network slice configured by the base station is located.
  • the base station may configure the same or different first thresholds for each network slice through the first system message, or the base station may configure the same or different first thresholds for each network slice group through the first system message value, where each network slice group includes two or more network slices.
  • the base station may configure the corresponding first threshold for network slice 1 as threshold 1 through a system message, configure the corresponding first threshold for network slice 2 as threshold 2, and so on, where threshold 1 and threshold 2 may be same or different.
  • the target network slice is network slice 1
  • the corresponding first threshold is threshold 1.
  • the base station may configure the corresponding first threshold value for network slice group 1 as threshold value 3 through system messages, and configure the corresponding first threshold value 2 for network slice group 2 as threshold value 4, etc., wherein 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.
  • the target network slice is network slice 1, and the corresponding first threshold is threshold 3.
  • the base station may configure the first threshold corresponding to at least one network slice for the UE through dedicated signaling, where the dedicated signaling may be an RRC (Radio Resource Control, radio resource control) message. That is, the base station may configure the first threshold corresponding to at least one network slice for the UE through the first RRC message.
  • RRC Radio Resource Control, radio resource control
  • the UE may use the first threshold configured in the RRC message as the standard.
  • the UE can select a designated random access resource or a public random access resource corresponding to the target network slice to initiate random access, which is easy to implement and has high usability.
  • one of the two-step random access resources and the four-step random access resources is selected as the first random access resource.
  • the UE directly uses the two-step random access resources or four-step random access resources configured by the base station As the candidate resource, then the candidate resource may be directly used as the first random access resource.
  • the base station configures both two-step random access resources and four-step random access resources
  • the UE may configure the two-step random access resources after determining that the signal quality is greater than the second threshold resource as an alternative resource.
  • the candidate resource is directly used as the first random access resource.
  • the base station configures both two-step random access resources and four-step random access resources, and the UE may configure the four-step random access resources when it determines that the signal quality is less than or equal to the second threshold Random access resources are used as alternative resources. Furthermore, the candidate resource is directly used as the first random access resource.
  • the second threshold value may include a second threshold value #1, which is specifically used for the UE to determine whether the two-step common random access resource can be selected as the first random access resource to initiate random access.
  • the second threshold value #1 can be configured by the base station through the second system message or the second RRC message.
  • the second threshold value #1 can reuse the reference signal received power threshold in the related art, that is, legacy( Legacy) RSRP (Reference Signal Receiving Power, reference signal receiving power) threshold, or other values configured by the base station to be different from the legacy RSRP threshold.
  • the base station configures two-step common random access resources, four-step common random access resources and four-step designated random access resources, if the signal quality is greater than the second threshold #1, the UE Two-step public random access resources may be selected to initiate random access.
  • the second threshold may include a second threshold #2, which is used for the UE to determine whether the two-step designated random access resource can be selected as the first random access resource to initiate random access.
  • the second threshold #2 can also be configured by the base station side through the second system message or the second RRC message, and the legacyRSRP threshold can be reused, or configured by the base station for each network slice or each network slice group, or multiplexed
  • the first threshold value is used, which is not limited in the present disclosure.
  • the second threshold #2 may be the same as or different from the second threshold #1, which is also not limited in the present disclosure.
  • the base station may In #2, select the two-step designated random access resource as the first random access resource.
  • the base station may configure the second threshold through a broadcasted second system message, including but not limited to at least one of the second threshold #1 and the second threshold #2 item.
  • the second system message may be the same as or different from the first system message, which is not limited in the present disclosure.
  • the base station may configure the second threshold for the UE through dedicated signaling, including but not limited to at least one of the second threshold #1 and the second threshold #2, Wherein, the dedicated signaling may be the second RRC message.
  • the second RRC message may be the same as or different from the first RRC message, which is not limited in the present disclosure.
  • the UE may use the second threshold value configured in the RRC message as the standard.
  • the UE can select two-step random access resources or four-step random access resources to initiate random access based on the second threshold configured by the base station and the measured signal quality, which is easy to implement and has high usability.
  • the candidate resources include the public random access resource, the designated random access resource corresponding to the target network slice, and the two-step random access resource.
  • the candidate resource is directly used as the first random access resource.
  • the above two manners may also exist in combination, that is, the third manner described below.
  • the order of combination is not distinguished. That is, after the candidate resources are determined according to the first method above, the first random access resource is determined among the candidate resources based on the second method. Alternatively, after the candidate resources are determined according to the above-mentioned second method, among the candidate resources, the first random access resource is determined based on the first method, and the specific method is as follows:
  • the first random access resource may be determined after combining the foregoing first manner and the second manner.
  • the public random access resource or the designated random access resource corresponding to the target network slice may be selected as a candidate resource according to the first method above, and then combined with the second method above, in Among the candidate resources, a two-step random access resource or a four-step random access resource is selected, and finally a combined resource is selected as the first random access resource.
  • the UE directly uses the two-step public random access resources as the first random access resource. Access resources.
  • the UE after using the public random access resource as a candidate resource, if it is determined based on the resource configuration information that the base station has only configured four-step public random access resources, then the UE directly uses the four-step public random access resource as the first random access resource. into resources.
  • the UE can use the channel signal quality greater than In the case of the second threshold #1 above, the two-step common random access resource is selected as the first random access resource. In the case that the signal quality of the channel is less than or equal to the second threshold #1, the four-step common random access resource is selected as the first random access resource.
  • the second threshold #1 is used for the UE to judge whether the two-step common random access resource can be selected as the first random access resource to initiate random access.
  • the second threshold #1 can also be configured by the base station side through the second system message or the second RRC message, specifically, the legacy RSRP threshold can be multiplexed, or configured by the base station as a value different from the legacy RSRP threshold.
  • the designated random access resource corresponding to the target network slice can be determined as a candidate resource according to the above-mentioned first method. Further, in combination with the above-mentioned second method, among the candidate resources, a two-step random access resource is selected. access resources or four-step random access resources, finally two-step designated random access resources or the four-step designated random access resources may be used as the first random access resources.
  • the UE after using 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 only configures two-step designated random access resources or four-step designated random access resources, then the UE directly The two-step designated random access resource or the four-step designated random access resource may be used as the first random access resource.
  • the UE can When the signal quality is greater than the second threshold #2, the two-step designated random access resource is used as the first random access resource. If the signal quality is less than or equal to the second threshold #2, the four-step designated random access resource is used as the first random access resource.
  • the second threshold value #2 is used for the UE to judge whether the two-step designated random access resource can be selected as the first random access resource to initiate random access.
  • the second threshold value can also be configured by the base station side through the second system message or the second RRC message.
  • the legacyRSRP threshold can be multiplexed, or configured by the base station for each network slice or each network slice group, or multiplexed
  • the first threshold is not limited in the present disclosure.
  • the second threshold #2 may be the same as or different from the second threshold #1, which is also not limited in the present disclosure.
  • the two-step random access resource can be selected as a candidate resource according to the second method above, and then combined with the first method above, the public random access resource or the target network can be selected among the candidate resources
  • the designated random access resource corresponding to the slice finally selects the two-step public random access resource or the two-step designated random access resource as the first random access resource as the first random access resource.
  • the UE may directly select the two-step common random access resources as the first random access resources.
  • the two-step designated random access resource is directly selected as the first random access resource.
  • the UE preferentially selects the two-step designated random access resources as the first random access resources.
  • the UE selects two-step designated random access resources as the channel quality when the channel quality is greater than the second threshold #2 A first random access resource. Otherwise, select a two-step common random access resource as the first random access resource.
  • the second threshold #2 is used for the UE to judge whether the two-step designated random access resource can be selected as the first random access resource to initiate random access.
  • the second threshold value #2 can be configured by the base station side through the second system message or the second RRC message, and the second threshold value can be multiplexed with the legacy RSRP threshold value, or the base station can configure each network slice or each network slice group configuration, or the first threshold may also be multiplexed, which is not limited in the present disclosure.
  • the four-step random access resource can be selected as a candidate resource according to the second method above, and then combined with the first method above, the public random access resource or the target network can be selected among the candidate resources
  • the designated random access resource corresponding to the slice finally selects the four-step common random access resource or the four-step designated random access resource as the first random access resource as the first random access resource.
  • the UE may directly select the four-step common random access resource as the first random access resource.
  • the four-step designated random access resource is directly selected as the first random access resource.
  • the UE selects four-step designated random access resources as the first channel quality when the channel quality is greater than the first threshold Random access to resources.
  • the four-step common random access resource is selected as the first random access resource.
  • other values different from the first threshold value may also be configured, which are not limited in the present disclosure.
  • the first random access resource for initiating random access may be determined among at least one random access resource configured in the resource configuration information, so as to quickly complete the random access and obtain the expected Slicing service with high availability.
  • an embodiment of the present disclosure provides a random access method, which can be used for a user equipment UE.
  • FIG. 2 is a flowchart of a random access method according to an embodiment. Figure, the method may include the following steps:
  • step 201 resource configuration information sent by a base station is received.
  • step 202 slice information of a target network slice that triggers random access is determined.
  • a first random access resource is determined based at least on the resource configuration information and the slice information.
  • step 204 random access is initiated based on the first random access resource.
  • step 205 resource rollback is not performed in response to meeting the preset rollback condition.
  • the preset fallback condition is met, and no resource fallback is performed.
  • the preset fallback condition is met, and resource fallback is not performed.
  • the preset fallback condition includes any of the following: the number of failures to initiate random access based on the first random access resource reaches the first fallback times threshold; the first backoff timer expires; or, receiving A random access resource fallback instruction message corresponding to the target network slice.
  • an embodiment of the present disclosure provides a random access method, which can be used for a user equipment UE.
  • FIG. 3 is a flowchart of a random access method according to an embodiment. Figure, the method may include the following steps:
  • step 301 resource configuration information sent by a base station is received.
  • step 302 slice information of a target network slice that triggers random access is determined.
  • a first random access resource is determined based at least on the resource configuration information and the slice information.
  • step 304 random access is initiated based on the first random access resource.
  • step 305 in response to meeting the preset fallback condition, determine the second random access resource to which fallback is required.
  • the preset fallback condition includes any of the following: the number of failures to initiate random access based on the first random access resource reaches the first fallback times threshold; the first backoff timer expires; or, receiving A random access resource fallback instruction message corresponding to the target network slice.
  • step 306 random access is re-initiated based on the second random access resource.
  • the user equipment may perform resource fallback, and re-initiate random access based on the second random access resource to which it falls back. Prevent UE from always initiating random access on the first random access resource until the maximum number of random accesses is reached, resulting in random access failure, and improve the success rate of UE random access.
  • the UE may respond to determining that the preset fallback condition is satisfied, and may perform processing in any of the following ways:
  • the first method does not perform resource fallback.
  • the second method is to perform resource rollback.
  • the UE may determine the random access resource to which it needs to fall back, and re-initiate random access based on the random access resource to which it falls back.
  • the random access resource that initiates the random access is different from the random access resource that needs to fall back to.
  • the UE initiates random access based on the first random access resource, and in response to determining that the preset fallback condition is met, the UE re-initiates random access based on the second random access resource to which it fell back.
  • the second random access resource is different from the first random access resource.
  • the UE when the preset fallback condition is satisfied, the UE may not perform resource fallback or re-initiate random access based on the second random access resource that was fallback to, so as to avoid reusing the first random access resource
  • the UE may not perform the fallback again at this time, or still perform the fallback , at this time, it is necessary to determine the third random access resource to fall back to, and initiate random access again 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 not be repeated here. Wherein, the third random access resource is different from the second random access resource.
  • the above two situations may be combined, that is, no resource fallback is performed in response to the preset fallback condition being satisfied when the random access is reinitiated based on the second random access resource.
  • the process of determining the third random access resource is similar to the process of determining the second random access resource, which will be introduced uniformly in the following embodiments and will not be introduced here.
  • the preset backoff condition may include that the number of failures to initiate random access based on the first random access resource reaches a first backoff times threshold.
  • the first backoff times threshold may be used to indicate the cumulative number of random access failures that are allowed to be initiated based on the first random access resource before backoff to the second random access resource for random access.
  • the UE fails to initiate random access based on the first random access resource for N1 times, and the UE determines that the preset backoff condition is met, and can fallback to the second random access resource Re-initiate random access.
  • the first backoff times threshold may be configured by the base station.
  • the configuration may be performed by the base station through a broadcasted third system message.
  • the first backoff times threshold may reuse the backoff times threshold in related mechanisms, that is, the legacy threshold. Or it may be configured by the base station for each network slice or each network slice group through the third system message.
  • the configuration may be performed by the base station through a third RRC message.
  • the first rollback times threshold may reuse the rollback times threshold in the related mechanism, that is, the legacy threshold. Or it may be configured by the base station for each network slice or each network slice group through the third RRC message.
  • the preset backoff condition may include: expiration of the first backoff timer.
  • the first back-off timer is used to indicate the accumulative length of time allowed to initiate random access based on the first random access resource before backing off to the second random access resource to perform random access.
  • the UE determines that the preset backoff condition is met, and may fallback to the second random access Random access is re-initiated on the resource.
  • the first backoff timer may be configured by the base station.
  • the configuration may be performed by the base station through a broadcasted fourth system message.
  • the configuration may be performed by the base station through a fourth RRC message.
  • the preset fallback condition may include: receiving a random access resource fallback indication message corresponding to the target network slice.
  • the UE may determine that the preset fallback condition is met, so as to fall back to the second random access resource and start again. Initiate random access.
  • preset rollback condition may include any one or a combination of multiple items above, and other possible preset rollback conditions shall fall within the protection scope of the present disclosure.
  • the UE can perform resource fallback on the basis of meeting the above preset fallback conditions, and re-initiate random access on the second random access resource to which it falls back, which improves the success rate of random access .
  • the random access backoff indication message may be used to configure at least one of the second backoff times threshold and the second backoff timer.
  • the second back-off times threshold is used to indicate that before the random access is initiated from the second random access resource to the first random access resource, it is allowed to use the second random access resource
  • the second backoff timer is used to indicate that before starting random access from the second random access resource to the first random access resource, it is allowed to use the second random access resource based on the second random access resource The accumulative duration of random access initiated by the access resource.
  • the threshold for the second number of back-off times is N2
  • the number of times the UE re-initiates random access from the first random access resource to the second random access resource reaches N2 times
  • the total number of times the current random access is initiated is less than
  • the preamble TransMax the maximum number of times of random access
  • the UE may preferentially fall back to resources in the designated random access resource pool corresponding to the target network slice. Until the preset fallback condition is met again, the UE performs resource fallback again. Or the UE falls back to resources in the designated random access resource pool corresponding to the target network slice, and the total number of random access initiations reaches the maximum number of random accesses, and the UE can report a random access failure message to the upper layers.
  • the UE may fall back to the first random access resource to initiate random access. That is, the UE may preferentially select resources in the designated random access resource pool corresponding to the target network slice to initiate random access again. Until the preset fallback condition is met again, the UE performs resource fallback again. Or the UE falls back to resources in the designated random access resource pool corresponding to the target network slice, and the total number of random access initiations reaches the maximum number of random accesses, and the UE can report a random access failure message to the upper layers.
  • the UE after falling back to the second access resource, the UE keeps initiating random access on the second random access resource until the maximum number of times of random access is reached, which also leads to random access failure. After at least one collision occurs in the second random access resource, the UE may fall back to the first random access resource to initiate random access, so as to improve the success rate of UE random access.
  • the UE if the second backoff times threshold is not configured in the random access resource backoff indication message, and the second backoff timer is not configured, then the UE falls back from the first random access resource to the second After the random access resource fails to perform random access once, and the total number of random access initiations currently does not reach the maximum number of random access times, the UE may fall back to the first random access resource and initiate random access again.
  • the first random access resource may include resources in a designated random access resource pool corresponding to the target network slice.
  • the UE after falling back to the second access resource, the UE keeps initiating random access on the second random access resource until the maximum number of times of random access is reached, which also leads to random access failure. After a collision occurs on the second random access resource, the UE may fall back to the first random access resource to initiate random access, so as to improve the success rate of UE random access.
  • the random access resource fallback indication message may carry a fallbackFactor (fallback factor).
  • the fallbackFactor may be a fallback probability value, so that the UE implements probability fallback.
  • the UE may generate a random number, so as to determine Whether resource fallback is required.
  • random access may be re-initiated based on the second random access resource to which the fallback is made.
  • the UE may randomly generate, but is not limited to, a random number that satisfies a uniform distribution, and the random number may be, but not limited to, within a range of [0, 1]. If the generated random number is less than the fallback probability value, the UE performs random access resource fallback, and if the generated random number is greater than or equal to the fallback probability value, the random access resource fallback may not be performed .
  • the UE may generate random numbers satisfying other distributions. If the generated random number is greater than the fallback probability value, the UE performs random access resource fallback. If the generated random number is less than or equal to the fallback probability value, the UE performs random access resource fallback. Probability value, the UE may not perform resource fallback.
  • the UE may 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 re-initiate the random access. This prevents the UE from always initiating random access on the first random access resource until the maximum number of random access times is reached, resulting in random access failure, achieving the purpose of UE performing probability fallback and improving the success rate of UE random access.
  • the fallbackFactor is not carried in the random access resource fallback indication message, then all UEs that receive the random access resource fallback indication message perform resource fallback.
  • the base station may carry the random access resource fallback indication message corresponding to the target network slice in the random access response message.
  • the base station may carry the random access resource fallback indication message corresponding to the target network slice in the fifth RRC message.
  • the UE may determine the second random access resource in a corresponding manner for any of the following situations.
  • the UE can initiate a random access on the two-step designated random access resource and satisfy at least one of the above preset fallback conditions item, and based on the resource configuration information and the slice information, if it is determined that the base station has configured the four-step designated random access resources, choose to fall back to the four-step designated random access resources and re-initiate random access . That is, the four-step designated random access resource is used as the second random access resource.
  • the UE can initiate random access on the two-step designated random access resource and satisfy at least one of the above preset fallback conditions item, and based on the resource configuration information and the slice information, if it is determined that the base station has configured the common random access resource, based on the resource configuration information and signal quality.
  • a second random access resource is determined. That is, a two-step common random access resource or a four-step common random access resource is selected as the second random access resource.
  • the UE can initiate random access on the two-step designated random access resource and satisfy at least one of the above preset fallback conditions item, and based on the resource configuration information and the slice information, if it is determined that the base station has configured the public random access resources, based on the first indication information sent by the base station, first determine that it is possible to fall back to the public random access resource After the random access is re-initiated based on the resource configuration information and signal quality.
  • a second random access resource is determined. That is, a two-step common random access resource or a four-step common random access resource is selected as the second random access resource.
  • the UE may use the two-step common random access resources as the second random access resources .
  • the third threshold value is used for the UE to judge whether it can fall back to the two-step common random access resources and re-initiate the random access.
  • the base station may configure the third threshold corresponding to at least one network slice through the fifth system message or the sixth RRC message.
  • the third threshold may reuse the legacy RSRP threshold, or be configured separately by the base station.
  • the base station may configure the same or different third thresholds for each network slice, or the base station may configure the same or different third thresholds for each network slice group.
  • the base station configures two-step common random access resources and four-step common random access resources, but the signal quality is less than or equal to the third threshold, then the UE can set the four-step designated random access resource as the second random access resource.
  • the UE may not fall back.
  • the first random access resource belongs to the public random access resource, that is, when the UE initiates the random access on the public random access resource and meets the preset fallback condition, the fallback may not be performed.
  • the base station may be determined that the base station has configured the four-step common random access resource, and the four-step common random access resource is used as the second random access resource .
  • the designated random access resource corresponding to the target network slice may be .
  • the second random access resource is determined based on the resource configuration information and signal quality in the designated random access resource corresponding to the target network slice.
  • the four-step designated random access resource may be directly used as the second random access resource. resource.
  • the four-step designated random access resource may be configured as a four-step designated random access resource.
  • the input resource is used as the second random access resource.
  • the fourth threshold value is used for the UE to judge whether it can fall back to the designated random access resource to re-initiate the random access.
  • the fourth threshold can be configured by the base station through the sixth system message or the seventh RRC message, and the fourth threshold can also be multiplexed with the legacy RSRP threshold, or configured separately by the base station.
  • 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.
  • the UE may determine the second random access resource based on any one or a combination of the above items, or re-initiate the random access based on the second random access resource and meet the preset fallback condition again
  • the third random access resource is determined without fallback or based on a similar method, thereby preventing the UE from initiating random access on the same random access resource until the maximum number of random accesses is reached, resulting in random access failure and improving UE random access. Access success rate.
  • the UE can base the threshold values configured by the RRC message on the basis.
  • FIG. 4 is a flowchart of a random access method according to an embodiment, and the method may include the following steps:
  • step 401 the resource configuration information is sent to a user equipment UE.
  • the resource configuration information is used to configure at least one of the following: public random access resources; designated random access resources corresponding to at least one network slice; two-step random access resources; four-step random access resources; two-step public random access resources; four-step public random access resources; two-step designated random access resources; four-step designated random access resources.
  • the base station may configure at least one resource for the UE through the resource configuration information, so that the UE determines the first random access resource to initiate random access, which has high availability.
  • the base station may configure the first threshold corresponding to at least one network slice through a system message or an RRC message.
  • the first threshold value may be used by the UE to determine whether the designated random access resource corresponding to the target network slice can be selected as the first random access resource to initiate random access.
  • the base station may configure the first threshold through a first system message or a first RRC message.
  • the base station may configure the second threshold corresponding to at least one network slice through a system message or an RRC message.
  • the second threshold value may be used for the UE to judge whether the two-step random access resource can be selected as the first random access resource to initiate random access.
  • the base station may configure the second threshold through a second system message or a second RRC message.
  • the second threshold may include a second threshold #1, which is specifically used for the UE to determine whether the two-step common random access resource can be selected.
  • the second threshold #1 can be configured by the base station through the second system message or the second RRC message.
  • the second threshold #1 can be multiplexed with the reference signal received power threshold in the related art, that is, legacy RSRP threshold.
  • the second threshold may include a second threshold #2, which is used for the UE to determine whether the two-step designated random access resource can be selected as the first random access resource to initiate random access.
  • the second threshold #2 can also be configured by the base station side through the second system message or the second RRC message, and the legacyRSRP threshold can be reused, or configured by the base station for each network slice or each network slice group, or multiplexed
  • the first threshold value is used, which is not limited in the present disclosure.
  • the second threshold #2 may be the same as or different from the second threshold #1, which is also not limited in the present disclosure.
  • the base station may configure the first backoff times threshold corresponding to at least one network slice through a system message or an RRC message.
  • the first backoff times threshold may be used to indicate the cumulative number of random access failures that are allowed to be initiated based on the first random access resource before backoff to the second random access resource for random access.
  • the base station may configure the first backoff times threshold through a third system message or a third RRC message.
  • the first backoff times threshold may be multiplexed with the legacy threshold, or configured additionally by the base station.
  • the base station may configure the first backoff timer through a system message or an RRC message.
  • the first back-off timer is used to indicate the accumulative length of time allowed to initiate random access based on the first random access resource before backing off to the second random access resource to perform random access.
  • the base station may configure the first backoff timer through a fourth system message or a fourth RRC message.
  • the base station may use a random access response message or a fifth RRC message to carry the random access resource fallback indication corresponding to the target network slice.
  • the base station may use the first indication information to indicate that the UE can fall back to common random access resources and re-initiate random access.
  • the base station may use the second indication information to instruct the UE to fall back to the designated random access resource corresponding to the target network slice and re-initiate the random access.
  • the base station may configure the third threshold through a system message or an RRC message.
  • the third threshold value is used for the UE to judge whether it can fall back to the two-step common random access resources and re-initiate the random access.
  • the base station may configure the third threshold through the fifth system message or the sixth RRC message.
  • the third threshold may reuse the legacy RSRP threshold, or be configured separately by the base station.
  • the base station may configure the fourth threshold through a system message or an RRC message.
  • the fourth threshold value is used for the UE to judge whether it can fall back to the designated random access resource to re-initiate the random access.
  • the base station may configure the third threshold through the sixth system message or the seventh RRC message.
  • the fourth threshold may reuse the legacy RSRP threshold, or be configured by the base station for each network slice or each network slice group.
  • the base station configures four-step designated random access resources and two-step public random access resources for the UE through resource configuration information.
  • four-step designated random access resources are always selected to initiate random access. If the preset fallback condition is satisfied, do not fall back or fall back to the common random access resource.
  • Resource fallback includes the following two situations:
  • Solution 2 Go back to step 4 and designate random access resources to re-initiate random access.
  • Solution 3 In the case that the signal quality is greater than the fourth threshold, fall back to step 4 to designate random access resources and re-initiate random access, otherwise no fallback.
  • Solution 4 If it is determined based on the second indication information sent by the base station that it is possible to fall back to the designated random access resource corresponding to the target network slice, then fall back to step 4 to designate the random access resource and re-initiate random access, otherwise no fallback .
  • Solution 5 If it is determined based on the second indication information sent by the base station that the specified random access resource corresponding to the target network slice can be rolled back, and the signal quality is greater than the fourth threshold value, fall back to the four-step specified random access resource Re-initiate random access, otherwise no rollback.
  • the base station configures two-step designated random access resources and two-step common random access resources for the UE through resource configuration information.
  • two-step designated random access resources are always selected to initiate random access. If the preset fallback condition is satisfied, do not fall back or fall back to the common random access resource.
  • two-step designated random access resources or two-step public random access resources can be selected to initiate random access in the above manner.
  • resource fallback in general, the two-step designated random access resource can fall back to the two-step public random access resource.
  • only the random access initiated by the two-step designated random access resource meets the preset fallback condition.
  • Solution 2 Falling back to two steps and specifying random access resources to re-initiate random access.
  • Solution 3 If it is determined based on the first indication information sent by the base station that it is possible to fall back to the common random access resource, fall back to the two-step designated random access resource and re-initiate the random access, otherwise no fallback.
  • the base station configures two-step designated random access resources, two-step public random access resources, and four-step public random access resources for the UE through resource configuration information.
  • four-step designated random access resources are always selected to initiate random access.
  • the preset fallback condition is met, the four-step designated random access resource is rolled back to the four-step common random access resource.
  • any one of two-step designated random access resources, two-step public random access resources, or four-step public random access resources can be selected to initiate random access in the above manner.
  • resource fallback can include initiating random access on two-step designated random access resources to meet preset fallback conditions:
  • Solution 2 Fall back to the four-step public random access resources and re-initiate random access.
  • Solution 3 If the signal quality is greater than the third threshold, fall back to the two-step public random access resource and re-initiate the random access, otherwise fall back to the four-step public random access resource to re-initiate the random access.
  • Solution 4 If it is determined based on the first indication information sent by the base station that it is possible to fall back to the public random access resource, then fall back to the two-step public random access resource or the four-step public random access resource and re-initiate the random access, otherwise No fallback.
  • the random access may be reinitiated by falling back to the two-step common random access resource, otherwise, the random access may be reinitiated by falling back to the four-step common random access resource.
  • Solution 1 Fall back to the four-step public random access resources and re-initiate random access.
  • Solution 2 Go back to step 4 and designate random access resources to re-initiate random access.
  • Solution 3 In the case that the signal quality is greater than the fourth threshold, fall back to step 4 to designate random access resources and re-initiate random access, otherwise no fallback.
  • Solution 4 If it is determined based on the second indication information sent by the base station that the designated random access resource corresponding to the target network slice can be returned to, then fall back to step 4 to designate the random access resource to re-initiate random access, otherwise fall back to The four-step public random access resource re-initiates random access.
  • the base station configures four-step designated random access resources, two-step public random access resources, and four-step public random access resources for the UE through resource configuration information.
  • the base station configures four-step designated random access resources, two-step public random access resources, and four-step public random access resources for the UE through resource configuration information.
  • any one may be selected to initiate random access.
  • the fallback of resources includes the following three situations:
  • Solution 2 Go back to step 4 and designate random access resources to re-initiate random access.
  • Solution 3 Fall back to the two-step public random access resources and re-initiate random access.
  • Solution 4 If it is determined based on the first indication information sent by the base station that it is possible to fall back to the public random access resource, then fall back to the two-step public random access resource and re-initiate the random access, otherwise no fallback.
  • Solution 2 Fall back to the two-step public random access resources and re-initiate random access.
  • Solution 3 When the signal quality is greater than the third threshold, fall back to the two-step public access resource and re-initiate random access, otherwise no fallback.
  • Solution 4 If it is determined based on the first indication information sent by the base station that it is possible to fall back to the public random access resource, then fall back to the two-step public random access resource and re-initiate the random access, otherwise no fallback.
  • Solution 5 If it is determined based on the first indication information sent by the base station that it is possible to fall back to the public random access resource, and the signal quality is greater than the third threshold, fall back to the two-step public random access resource and re-initiate the random access , otherwise no fallback.
  • Solution 2 Go back to step 4 and designate random access resources to re-initiate random access.
  • Solution 3 When the signal quality is greater than the fourth threshold, fall back to step 4 to specify access resources and re-initiate random access, otherwise no fallback.
  • Solution 4 If it is determined based on the second indication information sent by the base station that the specified random access resource corresponding to the target network slice can be rolled back, and the signal quality is greater than the fourth threshold value, then fall back to step 4 to specify the random access resource Re-initiate random access, otherwise no rollback.
  • Solution 5 If it is determined that the specified random access resource corresponding to the target network slice can be rolled back based on the second indication information sent by the base station, then roll back to the four-step specified random access resource and re-initiate random access, otherwise no rollback .
  • the present disclosure also provides embodiments of apparatuses for implementing application functions.
  • Fig. 5 shows a random access device according to an exemplary embodiment, the device is used for user equipment UE, including:
  • the receiving module 501 is configured to receive resource configuration information sent by the base station;
  • the first determining module 502 is configured to determine slice information of a target network slice that triggers random access
  • the second determining module 503 is configured to determine a first random access resource based at least on 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 the following: public random access resources; designated random access resources corresponding to at least one network slice; two-step random access resources; four-step random access resources; Random access resources; four-step public random access resources; two-step designated random access resources; four-step designated random access resources.
  • FIG. 6 shows a random access device according to an exemplary embodiment, the device is used in a base station, and includes:
  • the sending module 601 is configured to send the resource configuration information to the user equipment UE;
  • the resource configuration information is used to configure at least one of the following: public random access resources; designated random access resources corresponding to at least one network slice; two-step random access resources; four-step random access resources; Random access resources; four-step public random access resources; two-step designated random access resources; four-step designated random access resources.
  • the device embodiment since it basically corresponds to the method embodiment, for related parts, please refer to the part description of the method embodiment.
  • the device embodiments described above are only illustrative, and the above-mentioned units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in a place, or can also be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the disclosed solution. It can be understood and implemented by those skilled in the art without creative effort.
  • the present disclosure also provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and the computer program is used to execute any one of the above random access methods on the UE side.
  • the present disclosure also provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and the computer program is used to execute any one of the above random access methods on the base station side.
  • the present disclosure also provides a random access device, including:
  • memory for storing processor-executable instructions
  • the processor is configured to execute any one of the above random access methods on the UE side.
  • Fig. 7 is a block diagram of an electronic device 700 according to an exemplary embodiment.
  • the electronic device 700 may be user equipment such as a mobile phone, a tablet computer, an e-book reader, a multimedia player, a wearable device, a vehicle-mounted user equipment, an ipad, and a smart TV.
  • electronic device 700 may include one or more of the following components: processing component 702, memory 704, power supply component 706, multimedia component 708, audio component 710, input/output (I/O) interface 712, sensor component 716, and communication component 718 .
  • the processing component 702 generally controls the overall operations of the electronic device 700, such as operations associated with display, phone calls, data random access, camera operations, and recording operations.
  • the processing component 702 may include one or more processors 720 to execute instructions to complete all or part of the steps of the above random access method.
  • processing component 702 may include one or more modules that facilitate interaction between processing component 702 and other components.
  • processing component 702 may include a multimedia module to facilitate interaction between multimedia component 708 and processing component 702 .
  • the processing component 702 may read executable instructions from the memory, so as to implement the steps of a random access method provided in the foregoing embodiments.
  • the memory 704 is configured to store various types of data to support operations at the electronic device 700 . Examples of such data include instructions for any application or method operating on the electronic device 700, contact data, phonebook data, messages, pictures, videos, and the like.
  • the memory 704 can be realized by any type of volatile or non-volatile storage device or their combination, 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 or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • the power supply component 706 provides power to various components of the electronic device 700 .
  • Power components 706 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for electronic device 700 .
  • the multimedia component 708 includes a display screen providing an output interface between the electronic device 700 and the user.
  • the multimedia component 708 includes a front camera and/or a rear camera.
  • the front camera and/or the rear camera can receive external multimedia data.
  • Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capability.
  • the audio component 710 is configured to output and/or input audio signals.
  • the audio component 710 includes a microphone (MIC), which is configured to receive external audio signals when the electronic device 700 is in operation modes, such as call mode, recording mode and voice recognition mode. Received audio signals may be further stored in memory 704 or sent via communication component 718 .
  • the audio component 710 also includes a speaker for outputting audio signals.
  • 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, a button, and the like. These buttons may include, but are not limited to: a home button, volume buttons, start button, and lock button.
  • Sensor assembly 716 includes one or more sensors for providing various aspects of status assessment for electronic device 700 .
  • the sensor component 716 can detect the open/closed state of the electronic device 700, the relative positioning of components, such as the display and the keypad of the electronic device 700, the sensor component 716 can also detect the electronic device 700 or a The position of components changes, the presence or absence of user contact with the electronic device 700 , the orientation or acceleration/deceleration of the electronic device 700 and the temperature change of the electronic device 700 .
  • Sensor assembly 716 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 716 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 716 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • the communication component 718 is configured as a component that facilitates wired or wireless communication between the electronic device 700 and other devices.
  • the electronic device 700 can access a wireless network based on component standards, such as Wi-Fi, 2G, 3G, 4G, 5G or 6G, or a combination thereof.
  • the communication component 718 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 718 also includes a near field component (NFC) module to facilitate short-range communication.
  • the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wide Band (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID Radio Frequency Identification
  • IrDA Infrared Data Association
  • UWB Ultra Wide Band
  • Bluetooth Bluetooth
  • electronic device 700 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable Implemented by a programmable gate array (FPGA), a controller, a microcontroller, a microprocessor or other electronic components, and is used to execute any of the random access methods described above on the user equipment side.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable Implemented by a programmable gate array (FPGA), a controller, a microcontroller, a microprocessor or other electronic components, and is used to execute any of the random access methods described above on the user equipment side.
  • non-transitory machine-readable storage medium including instructions, such as the memory 704 including instructions, which can be executed by the processor 720 of the electronic device 700 to implement the above random access method.
  • the non-transitory computer readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
  • the present disclosure also provides a random access device, including:
  • memory for storing processor-executable instructions
  • the processor is configured to execute any random access method described above on the base station side.
  • FIG. 8 is a schematic structural diagram of a random access apparatus 800 according to an exemplary embodiment.
  • the apparatus 800 may be provided as a base station.
  • the device 800 includes a processing component 822, a wireless transmitting/receiving component 824, an antenna component 826, and a signal processing part specific to a wireless interface.
  • the processing component 822 may further include one or more processors.
  • One of the processors in the processing component 822 may be configured to execute any random access method described above on the base station side.

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Abstract

本公开提供一种随机接入方法及装置、存储介质,其中,所述随机接入方法包括:接收基站发送的资源配置信息;确定触发随机接入的目标网络切片的切片信息;至少基于所述资源配置信息和所述切片信息,确定第一随机接入资源;基于所述第一随机接入资源发起随机接入;其中,所述资源配置信息用于配置以下至少一项:公共随机接入资源;至少一个网络切片对应的指定随机接入资源;两步随机接入资源;四步随机接入资源;两步公共随机接入资源;四步公共随机接入资源;两步指定随机接入资源;四步指定随机接入资源。本公开UE可以在资源配置信息所配置的资源中确定第一随机接入资源,从而快速完成随机接入,获得期望的切片服务。

Description

随机接入方法及装置、存储介质 技术领域
本公开涉及通信领域,尤其涉及随机接入方法及装置、存储介质。
背景技术
网络切片可以为特定用户提供一个完整的端到端的虚拟网络。通过将网络资源划分为多个网络切片,5G(5th generation mobile networks,第5代移动通信技术)网络切片可以为具有不同服务需求的用户提供差异化服务。其中,不同服务需求包括但不限于延迟、可靠性、容量、隔离以及其他功能。运营商网络将不但可以服务于以Best Effort(尽力而为)传输为通信需求特征的信息消费类业务,也可以满足以确定性传输为通信需求的生产控制类服务,为通信需求迥异的服务分配逻辑上或者物理上隔离的网络资源。
一个网络切片可以由RAN(Radio Access Network,无线接入网)部分和CN(Core Network,核心网)部分组成。网络切片的实现依赖于不同切片的流量由不同的PDU(Protocol Data Unit,协议数据单元)session(会话)处理的原则。网络可以通过调度和提供不同的L1层/L2层配置来实现不同的网络切片。
随机接入过程包括:竞争随机接入和非竞争随机接入。在竞争随机接入中,随机接入请求资源(即MSG1使用的资源)并非是一个UE(User Equipment,用户设备)专用的,即多个用户可能在相同的时频域资源上发起随机接入请求,需要通过竞争解决过程来建立基站和UE之间的关系;非竞争随机接入中,随机接入请求资源是由基站分配给指定UE的,基站只要识别到该UE专用的随机接入资源,即可唯一识别该UE。
发明内容
为克服相关技术中存在的问题,本公开实施例提供一种随机接入方法及装置、存储介质。
根据本公开实施例的第一方面,提供一种随机接入方法,所述方法用于用户设备UE,包括:
接收基站发送的资源配置信息;
确定触发随机接入的目标网络切片的切片信息;
至少基于所述资源配置信息和所述切片信息,确定第一随机接入资源;
基于所述第一随机接入资源发起随机接入;
其中,所述资源配置信息用于配置以下至少一项:公共随机接入资源;至少一个网络切片对应的指定随机接入资源;两步随机接入资源;四步随机接入资源;两步公共随机接入资源;四步公共随机接入资源;两步指定随机接入资源;四步指定随机接入资源。
根据本公开实施例的第二方面,提供一种随机接入方法,所述方法用于基站,包括:
向用户设备UE发送所述资源配置信息;
其中,所述资源配置信息用于配置以下至少一项:公共随机接入资源;至少一个网络切片对应的指定随机接入资源;两步随机接入资源;四步随机接入资源;两步公共随机接入资源;四步公共随机接入资源;两步指定随机接入资源;四步指定随机接入资源。
根据本公开实施例的第三方面,提供一种随机接入装置,所述装置用于用户设备UE,包括:
接收模块,被配置为接收基站发送的资源配置信息;
第一确定模块,被配置为确定触发随机接入的目标网络切片的切片信息;
第二确定模块,被配置为至少基于所述资源配置信息和所述切片信息, 确定第一随机接入资源;
随机接入模块,被配置为基于所述第一随机接入资源发起随机接入;
其中,所述资源配置信息用于配置以下至少一项:公共随机接入资源;至少一个网络切片对应的指定随机接入资源;两步随机接入资源;四步随机接入资源;两步公共随机接入资源;四步公共随机接入资源;两步指定随机接入资源;四步指定随机接入资源。
根据本公开实施例的第四方面,提供一种随机接入装置,所述装置用于基站,包括:
发送模块,被配置为向用户设备UE发送所述资源配置信息;
其中,所述资源配置信息用于配置以下至少一项:公共随机接入资源;至少一个网络切片对应的指定随机接入资源;两步随机接入资源;四步随机接入资源;两步公共随机接入资源;四步公共随机接入资源;两步指定随机接入资源;四步指定随机接入资源。
根据本公开实施例的第五方面,提供一种计算机可读存储介质,所述计算机可读存储介质存储有计算机程序,所述计算机程序用于执行上述UE侧任一项所述的随机接入方法。
根据本公开实施例的第六方面,提供一种计算机可读存储介质,所述计算机可读存储介质存储有计算机程序,所述计算机程序用于执行上述基站任一项所述的随机接入方法。
根据本公开实施例的第七方面,提供一种随机接入装置,包括:
处理器;
用于存储处理器可执行指令的存储器;
其中,所述处理器被配置为用于执行上述UE侧任一项所述的随机接入方法。
根据本公开实施例的第八方面,提供一种随机接入装置,包括:
处理器;
用于存储处理器可执行指令的存储器;
其中,所述处理器被配置为用于执行上述基站侧任一项所述的随机接入方法。
本公开的实施例提供的技术方案可以包括以下有益效果:
本公开实施例中,可以基于用于用户设备发起随机接入的目标网络切片的切片信息和网络侧发送的资源配置信息,确定发起随机接入的第一随机接入资源,其中,资源配置信息可以用于配置下至少一项:公共随机接入资源;所述目标网络切片对应的指定随机接入资源;两步随机接入资源;四步随机接入资源;两步公共随机接入资源;四步公共随机接入资源;两步指定随机接入资源;四步指定随机接入资源,使得UE可以在该资源配置信息所配置的资源中确定第一随机接入资源,从而快速完成随机接入,获得期望的切片服务。
本公开实施例中,用户设备在第一随机接入资源发生多次碰撞的情况下,可以进行资源回退,基于回退到的第二随机接入资源上重新发起随机接入。避免UE一直在第一随机接入资源上发起随机接入,直到达到随机接入最大次数,导致随机接入失败,提高UE随机接入的成功率。
应当理解的是,以上的一般描述和后文的细节描述仅是示例性和解释性的,并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分,示出了符合本发明的实施例,并与说明书一起用于解释本发明的原理。
图1是根据一示例性实施例示出的一种随机接入方法流程示意图。
图2是根据一示例性实施例示出的另一种随机接入方法流程示意图。
图3是根据一示例性实施例示出的另一种随机接入方法流程示意图。
图4是根据一示例性实施例示出的另一种随机接入方法流程示意图。
图5是根据一示例性实施例示出的一种随机接入装置框图。
图6是根据一示例性实施例示出的另一种随机接入装置框图。
图7是本公开根据一示例性实施例示出的一种随机接入装置的一结构示意图。
图8是本公开根据一示例性实施例示出的另一种随机接入装置的一结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明,其示例表示在附图中。下面的描述涉及附图时,除非另有表示,不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反,它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。
在本公开使用的术语是仅仅出于描述特定实施例的目的,而非旨在限制本公开。在本公开和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式,除非上下文清楚地表示其他含义。还应当理解,本文中使用的术语“和/或”是指并包含至少一个相关联的列出项目的任何或所有可能组合。
应当理解,尽管在本公开可能采用术语第一、第二、第三等来描述各种信息,但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如,在不脱离本公开范围的情况下,第一信息也可以被称为第二信息,类似地,第二信息也可以被称为第一信息。取决于语境,如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
在本公开实施例中,使用某一切片服务的UE可以基于公共RACH(Random Access Channel,随机接入信道)资源发起随机接入。考虑到多个UE采用公共RACH资源发起随机接入,很可能导致网络拥塞。
为了解决这一技术问题,可以为每个网络切片或每个网络切片组配置该网络切片对应的单独的指定RACH资源。
在R16(Release 16,版本16)阶段引入了两步随机接入方式,通过将四步随机接入方式中的Msg1(消息1)和Msg3(消息3)合并为MsgA(消息A),以及将两个下行信道Msg2(消息2)和Msg4(消息4)合并为新的MsgB(消息B),简化随机接入过程,降低时延和信令开销。UE(User Equipment,用户设备)在发起随机接入之前首先要确定随机接入类型。
再介绍一下回退机制。对于两步随机接入方式来说,当MsgA重传次数达到一定阈值,会触发RA类型的切换,切换到四步随机接入方式进行Msg1的重复尝试接入。该阈值由基站在系统消息中配置。
除了因重传达到阈值切换到四步随机接入方式之外,还规定了一种回退机制,该回退机制的触发条件是当MsgA中的preamble(前导码)能够被正确检测,但是PUSCH(Physical Uplink Shared Channel,物理上行共享信道)消息解调失败,此时基站反馈一个fallbackRAR(fallback Random Access Response,回退随机响应消息),类似于四步随机接入方式的msg2,用于调度Msg3的发送。在这种情况下,如果因msg3发送失败而发生重传,需要优先采用两步随机接入方式。
目前,针对随机接入资源的配置,选择适合的随机接入资源发起随机接入,在需要进行资源回退的情况下,如何实现资源回退,还需要进一步完善。为了解决这一问题,本公开提供了以下随机接入方案。
下面先从用户设备侧介绍一下本公开提供的随机接入方案。
本公开实施例提供了一种随机接入方法,可以用于用户设备UE,参照图1所示,图1是根据一实施例示出的一种随机接入方法流程图,该方法可以包括以下步骤:
在步骤101中,接收基站发送的资源配置信息。
在本公开实施例中,所述资源配置信息用于配置以下至少一项:公共随机接入资源;至少一个网络切片对应的指定随机接入资源;两步随机接入资源;四步随机接入资源;两步公共随机接入资源;四步公共随机接入 资源;两步指定随机接入资源;四步指定随机接入资源。
其中,公共随机接入资源是多个UE之间共享的随机接入资源,在一个可能的示例中,多个UE包括支持网络切片功能的UE和不支持网络切片功能的UE。即公共随机接入资源是支持网络切片功能的UE和不支持网络切片功能的UE共享的随机接入资源。
在另一个可能的实现方式中,多个UE只包括支持网络切片功能的UE。即公共随机接入资源是支持网络切片功能的UE之间共享的随机接入资源。
至少一个网络切片对应的指定随机接入资源是指针对每个网络切片单独配置的用于该网络切片下的UE发起随机接入的资源。例如网络切片1对应的指定随机接入资源包括资源1,网络切片2对应的指定随机接入资源包括资源2等。或者,至少一个网络切片对应的指定随机接入资源是针对每个网络切片组配置的用于该网络切片组中各网络切片下的UE发起随机接入的资源。其中,每个网络切片组中可以包括两个或两个以上网络切片。
两步随机接入资源是指UE采用两步随机接入方式时可以使用的资源。相应地,四步随机接入资源是指UE采用四步随机接入方式时可以使用的资源。
两步公共随机接入资源是指多个UE之间共享,且采用两步随机接入方式时可以使用的组合资源。四步公共随机接入资源是指多个UE之间共享,且采用四步随机接入方式时可以使用的组合资源。
两步指定随机接入资源指针对某个网络切片的UE提供的随机接入资源,且采用两步随机接入方式时可以使用的组合资源。四步指定随机接入资源指针对某个网络切片的UE提供的随机接入资源,且采用四步随机接入方式时可以使用的组合资源。
在步骤102中,确定触发随机接入的目标网络切片的切片信息。
在本公开实施例中,目标网络切片是用于所述用户设备发起随机接入的网络切片,即目标网络切片可以是所述用户设备被触发发起随机接入的 网络切片。
在步骤103中,至少基于所述资源配置信息和所述切片信息,确定第一随机接入资源。
在步骤104中,基于所述第一随机接入资源发起随机接入。
上述实施例中,可以基于用于用户设备发起随机接入的目标网络切片的切片信息和网络侧发送的资源配置信息,在资源配置信息配置的随机接入资源中确定发起随机接入的第一随机接入资源,降低使用某一切片业务的UE与其他UE在随机接入的过程中发生碰撞的可能,提高UE随机接入的成功率,使得UE可以快速完成随机接入,获得期望的切片服务。
在一些可选实施例中,针对上述步骤101,UE可以采用以下任一种方式接收资源配置信息。
在一个可能的实现方式中,针对UE初始随机接入过程,UE可以接收基站侧下发的携带资源配置信息的系统消息。
在一个可能的实现方式中,针对由PDCCH(Physical Downlink Control Channel,物理下行控制)指令触发的随机接入过程,UE可以接收携带该资源配置信息的PDCCH指令。
在一个可能的实现方式中,UE已经与基站建立了RRC连接,即由基站下发的RRC消息触发了UE发起随机接入的情况下,UE可以接收携带所述资源配置信息的无线资源控制RRC消息。
其中资源配置信息用于配置以下至少一项:公共随机接入资源;至少一个网络切片对应的指定随机接入资源;两步随机接入资源;四步随机接入资源;两步公共随机接入资源;四步公共随机接入资源;两步指定随机接入资源;四步指定随机接入资源。
上述实施例中,UE可以通过多种方式获得资源配置信息,提高了随机接入的成功率,可用性高。
在一些可选实施例中,UE可以采用但不限于以下方式中的任一种确定触发随机接入的目标网络切片的切片信息。
在一个可能的实现方式中,UE可以在NAS(Non-Access Stratum,非接入)层请求AS(Access Stratum,接入)层发起RRC连接的情况下,获取由NAS层发送给AS层的目标网络切片的切片信息。
在另一个可能的实现方式中,对于网络侧存在寻呼触发的随机接入,UE可以接收基站下发的携带目标网络切片的切片信息的寻呼消息。
在另一个可能的实现方式中,对于由PDCCH指令触发的随机接入过程,UE可以接收基站下发的携带该目标网络切片的切片信息的PDCCH指令。
在另一个可能的实现方式中,在逻辑信道标识和切片信息相关联的情况下,UE可以确定存在待传输数据的逻辑信道,根据该逻辑信道的信道标识确定与该逻辑信道相关联的切片信息,将该切片信息作为目标网络切片的切片信息。可选地,逻辑信道标识和切片信息相关联可以包括但不限于不同的逻辑信道标识对应相同或不同的切片信息。
在本公开实施例中,触发随机接入的目标网络切片的数目可以为一个或多个,本公开对此不作限定。在触发随机接入的目标网络切片的数目为多个的情况下,可以基于目标网络切片的优先级高低,确定优先级高的目标网络切片对应的指定随机接入资源为第一随机接入资源。其中,不同网络切片的优先级顺序可以由UE的NAS层来确定,并提供给AS层。
在本公开实施例中,目标网络切片的切片信息可以包括但不限于以下至少一项:S-NSSAI(Single-Network Slice Selection Assistance Information,单一的网络切片选择辅助信息)、SST(Slice Service Type,切片服务类型)、SD(Slice Differentiator,切片微分标识)、切片索引、切片标识(或切片组标识)、operator-defined access category(运营商定义的接入类型)。当然也可以是其他可以唯一标识切片的信息,本公开对此不作限定。
上述实施例中,UE可以采用不同方式确定目标网络切片的切片信息,后续可以根据目标网络切片的切片信息和接收到的资源配置信息,在资源配置信息配置的随机接入资源中确定发起随机接入的第一随机接入资源。 降低使用切片业务的UE在随机接入的过程出现碰撞的可能,提高UE随机接入的成功率,使得UE可以快速完成随机接入,获得期望的切片服务。
在一些可选实施例中,UE可以采用以下任一种方式确定第一随机接入资源。
第一种方式,在公共随机接入资源和目标网络切片对应的指定随机接入资源中,选择一项作为第一随机接入资源。
在一个可能的实现方式中,如果基于资源配置信息和目标网络切片的切片信息,确定基站至少配置了该目标网络切片对应的指定随机接入资源。
那么可以将该目标网络切片对应的指定随机接入资源作为备选资源。进一步地,可以将该备选资源直接作为第一随机接入资源。即UE可以将目标网络切片对应的指定随机接入资源作为第一随机接入资源,发起随机接入。
在一个可能的实现方式中,如果基于资源配置信息和目标网络切片的切片信息,确定基站并未配置该目标网络切片对应的指定随机接入资源,但配置了公共随机接入资源,则可以将该公共随机接入资源作为备选资源。进一步地,可以将该备选资源直接作为第一随机接入资源。
在一个可能的实现方式中,基于所述资源配置信息和所述切片信息,确定所述基站至少配置了所述目标网络切片对应的指定随机接入资源,以及所述公共随机接入资源,UE可以结合信号质量,进一步确定选择何种资源作为备选资源,进而将备选资源直接作为发起随机接入的第一随机接入资源。
其中,UE可以测量信号质量,在信号质量大于第一门限值的情况下,将目标网络切片对应的指定随机接入资源作为备选资源。进而将备选资源作为第一随机接入资源。
或者,UE测量信道的信号质量,在信号质量小于或等于第一门限值的情况下,可以将公共随机接入资源作为备选资源。进而将备选资源作为第一随机接入资源。
在上述实施例中,第一门限值可以用于UE判断是否能够选择目标网络切片对应的指定随机接入资源作为第一随机接入资源,来发起随机接入。第一门限值可以由基站侧进行配置。
在一个可能的实现方式中,可以由基站通过广播的第一系统消息来配置。UE基于接收到的用于配置与至少一个网络切片对应的所述第一门限值的第一系统消息,确定第一门限值,该第一门限值可以是基站配置的与目标网络切片对应的第一门限值,或,基站配置的目标网络切片所在的网络切片组对应的第一门限值。
可选地,基站可以通过第一系统消息为每个网络切片配置相同或不同的第一门限值,或者基站可以通过第一系统消息为每个网络切片组配置相同或不同的第一门限值,其中,每个网络切片组包括两个或两个以上的网络切片。
例如,基站可以通过系统消息为网络切片1配置对应的第一门限值为阈值1,为网络切片2配置对应的第一门限值为阈值2,等等,其中,阈值1和阈值2可以相同或不同。目标网络切片为网络切片1,则对应的第一门限值为阈值1。
再例如,基站可以通过系统消息为网络切片组1配置对应的第一门限值为阈值3,为网络切片组2配置对应的第一门限值2为阈值4等等,其中,网络切片组1包括网络切片1和网络切片2,网络切片组2包括网络切片3和网络切片4。目标网络切片为网络切片1,则对应的第一门限值为阈值3。
在另一个可能的实现方式中,基站可以通过专用信令为UE配置至少一个网络切片对应的第一门限值,其中,专用信令可以为RRC(Radio Resource Control,无线资源控制)消息。即基站可以通过第一RRC消息为该UE配置与至少一个网络切片对应的所述第一门限值。
需要说明的是,如果基站通过系统消息以及RRC消息均为UE配置了至少一个网络切片对应的第一门限值,UE可以以RRC消息配置的第一门 限值为准。
上述实施例中,UE可以基于基站配置的第一门限值和信号质量,来选择目标网络切片对应的指定随机接入资源或公共随机接入资源发起随机接入,实现简便,可用性高。
第二种方式,在两步随机接入资源和四步随机接入资源中,选择一项作为第一随机接入资源。
在一个可能的实现方式中,如果基站只配置了两步随机接入资源或只配置了四步随机接入资源,那么UE直接将基站配置的两步随机接入资源或四步随机接入资源作为备选资源,继而将备选资源直接作为第一随机接入资源即可。
在一个可能的实现方式中,基站既配置了两步随机接入资源,又配置了四步随机接入资源,UE可以在确定信号质量大于第二门限值,将所述两步随机接入资源作为备选资源。进而将该备选资源直接作为第一随机接入资源。
在另一个可能的实现方式中,基站既配置了两步随机接入资源,又配置了四步随机接入资源,UE可以在确定信号质量小于或等于第二门限值,将所述四步随机接入资源作为备选资源。进而将该备选资源直接作为第一随机接入资源。
在一个可能的实现方式中,第二门限值可以包括第二门限值#1,具体用于UE判断是否能够选择两步公共随机接入资源作为第一随机接入资源发起随机接入。此时,第二门限值#1可以由基站通过第二系统消息或第二RRC消息配置,具体地,第二门限值#1可以复用相关技术中参考信号接收功率阈值,即legacy(遗留)RSRP(Reference Signal Receiving Power,参考信号接收功率)阈值,或由基站配置为不同于legacy RSRP阈值的其他值。
举例来讲,在基站配置了两步公共随机接入资源、四步公共随机接入资源以及四步指定随机接入资源的情况下,如果信号质量大于该第二门限 值#1,则UE可以选择两步公共随机接入资源发起随机接入。
在一个可能的实现方式中,第二门限值中可以包括第二门限值#2,用于UE判断是否能够选择两步指定随机接入资源作为第一随机接入资源来发起随机接入。第二门限值#2同样可以由基站侧通过第二系统消息或第二RRC消息进行配置,可以复用legacyRSRP阈值,或者由基站针对每个网络切片或每个网络切片组进行配置,或者复用第一门限值,本公开对此不作限定。第二门限值#2可以与第二门限值#1相同或不同,本公开对此同样不作限定。
举例来讲,基于资源配置信息,确定基站配置了两步指定随机接入资源、四步公共随机接入资源以及四步指定随机接入资源的情况下,可以在信号质量大于第二门限值#2时,选择两步指定随机接入资源作为第一随机接入资源。
在一个可能的实现方式中,可以由基站通过广播的第二系统消息来配置上述第二门限值,包括但不限于第二门限值#1和第二门限值#2中的至少一项。
其中,第二系统消息可以与第一系统消息相同或不同,本公开对此不作限定。
在另一个可能的实现方式中,基站可以通过专用信令为UE配置上述第二门限值,包括但不限于第二门限值#1和第二门限值#2中的至少一项,其中,专用信令可以为第二RRC消息。第二RRC消息可以与第一RRC消息相同或不同,本公开对此不作限定。
同样地,如果基站通过系统消息以及RRC消息均为UE配置了第二门限值,UE可以以RRC消息配置的第二门限值为准。
上述实施例中,UE可以基于基站配置的第二门限值和测量的信号质量,来选择两步随机接入资源或四步接入资源发起随机接入,实现简便,可用性高。
上述两种方式可以单独存在,在单独存在的情况下,相当于在所述备 选资源包括所述公共随机接入资源、所述目标网络切片对应的指定随机接入资源、所述两步随机接入资源或所述四步随机接入资源中任一项的情况下,将备选资源直接作为所述第一随机接入资源。
在本公开实施例中,上述两种方式也可以组合存在,即下边介绍的第三种方式。在组合时,不区分组合的先后顺序。即可以先按照上述第一种方式确定备选资源后,在备选资源中,基于第二种方式,确定第一随机接入资源。或者可以先按照上述第二种方式确定备选资源后,在备选资源中,基于第一种方式,确定第一随机接入资源,具体方式如下:
第三种方式,可以将上述第一种方式与第二种方式进行组合后,确定第一随机接入资源。
在一个可能的实现方式中,可以先按照上述第一种方式选择公共随机接入资源或所述目标网络切片对应的指定随机接入资源作为备选资源,然后再结合上述第二种方式,在备选资源中,选择两步随机接入资源或四步随机接入资源,最终选择一项组合资源作为第一随机接入资源。
在一个可能的实现方式中,也可以先按照上述第二种方式,选择两步随机接入资源或四步随机接入资源作为备选资源,然后再结合上述第一种方式,在备选资源中,选择公共随机接入资源或目标网络切片对应的指定随机接入资源,最终选择一项组合资源作为第一随机接入资源。
下边分别基于不同组合情况进行介绍。
第一种情况,按照第一种方式将公共随机接入资源作为备选资源后,再按照上述第二种方式选择两步随机接入资源或四步随机接入资源,最终将两步公共随机接入资源或四步公共随机接入资源作为第一随机接入资源。
具体地,在将公共随机接入资源作为备选资源后,如果基于资源配置信息,确定基站只配置了两步公共随机接入资源,那么UE直接将两步公共随机接入资源作为第一随机接入资源。
或者,在将公共随机接入资源作为备选资源后,如果基于资源配置信息,确定基站只配置了四步公共随机接入资源,那么UE直接将四步公共 随机接入资源作为第一随机接入资源。
或者,在将公共随机接入资源作为备选资源后,如果基于资源配置信息,确定基站配置了两步公共随机接入资源,以及四步公共随机接入资源,UE可以在信道的信号质量大于上述第二门限值#1的情况下,选择两步公共随机接入资源作为第一随机接入资源。在信道的信号质量小于或等于第二门限值#1的情况下,选择四步公共随机接入资源作为第一随机接入资源。其中,第二门限值#1用于UE判断是否能够选择两步公共随机接入资源作为第一随机接入资源来发起随机接入。第二门限值#1同样可以由基站侧通过第二系统消息或第二RRC消息进行配置,具体可以复用legacy RSRP阈值,或由基站配置为不同于legacy RSRP阈值的其他值。
第二种情况,可以先按照上述第一种方式确定将目标网络切片对应的指定随机接入资源作为备选资源,进一步地,结合上述第二种方式,在备选资源中,选择两步随机接入资源或四步随机接入资源,最终可以将两步指定随机接入资源或所述四步指定随机接入资源作为所述第一随机接入资源。
具体地,在将目标网络切片对应的随机接入资源作为备选资源后,如果基于资源配置信息,确定基站只配置了两步指定随机接入资源或四步指定随机接入资源,那么UE直接将两步指定随机接入资源或四步指定随机接入资源作为第一随机接入资源即可。
或者,在将目标网络切片对应的随机接入资源作为备选资源后,如果基于资源配置信息,确定基站配置了两步指定随机接入资源,以及四步指定随机接入资源,则UE可以在信号质量大于第二门限值#2的情况下,将所述两步指定随机接入资源作为所述第一随机接入资源。在信号质量小于或等于所述第二门限值#2的情况下,将所述四步指定随机接入资源作为所述第一随机接入资源。其中,第二门限值#2用于UE判断是否能够选择两步指定随机接入资源作为第一随机接入资源来发起随机接入。第二门限值同样可以由基站侧通过第二系统消息或第二RRC消息进行配置,具体可以 复用legacyRSRP阈值,或者由基站针对每个网络切片或每个网络切片组进行配置,或者复用第一门限值,本公开对此不作限定。第二门限值#2可以与第二门限值#1相同或不同,本公开对此同样不作限定。
第三种情况,可以先按照上述第二种方式,选择两步随机接入资源作为备选资源,然后再结合上述第一种方式,在备选资源中,选择公共随机接入资源或目标网络切片对应的指定随机接入资源,最终选择两步公共随机接入资源或所述两步指定随机接入资源作为所述第一随机接入资源作为第一随机接入资源。
具体地,如果基站只配置了两步公共随机接入资源,并未配置所述两步指定随机接入资源,那么UE直接选择两步公共随机接入资源作为第一随机接入资源即可。
或者,基站至少配置了两步指定随机接入资源的情况下,直接选择两步指定随机接入资源作为第一随机接入资源。
或者,在基站配置了两步公共随机接入资源以及两步指定随机接入资源的情况下,UE优先选择两步指定随机接入资源作为第一随机接入资源。
或者,在基站配置了两步公共随机接入资源以及两步指定随机接入资源的情况下,UE在信道质量大于第二门限值#2的情况下,选择两步指定随机接入资源作为第一随机接入资源。否则,选择两步公共随机接入资源作为第一随机接入资源。其中,第二门限值#2是用于UE判断是否能够选择两步指定随机接入资源作为第一随机接入资源,来发起随机接入。第二门限值#2可以由基站侧通过第二系统消息或第二RRC消息进行配置,第二门限值可以复用legacy RSRP阈值,或者由基站针对每个网络切片或每个网络切片组进行配置,或者还可以复用第一门限值,本公开对此不作限定。
第四种情况,可以先按照上述第二种方式,选择四步随机接入资源作为备选资源,然后再结合上述第一种方式,在备选资源中,选择公共随机接入资源或目标网络切片对应的指定随机接入资源,最终选择四步公共随 机接入资源或所述四步指定随机接入资源作为所述第一随机接入资源作为第一随机接入资源。
具体地,如果基站只配置了四步公共随机接入资源,并未配置所述四步指定随机接入资源,那么UE直接选择四步公共随机接入资源作为第一随机接入资源即可。
或者,基站至少配置了四步指定随机接入资源的情况下,直接选择四步指定随机接入资源作为第一随机接入资源。
或者,在基站配置了四步公共随机接入资源以及四步指定随机接入资源的情况下,UE在信道质量大于第一门限值的情况下,选择四步指定随机接入资源作为第一随机接入资源。在信道质量小于或等于第一门限值的情况下,选择四步公共随机接入资源作为第一随机接入资源。这里将用于UE判断是否能够选择四步指定随机接入资源的门限值直接复用第一门限值。当然,也可以配置为不同于第一门限值的其他值,本公开对比不作限定。
上述实施例中,可以基于上述任一种方式,在资源配置信息配置的至少一项随机接入资源中,确定发起随机接入的第一随机接入资源,从而快速完成随机接入,获得期望的切片服务,可用性高。
在一些可选实施例中,本公开实施例提供了一种随机接入方法,可以用于用户设备UE,参照图2所示,图2是根据一实施例示出的一种随机接入方法流程图,该方法可以包括以下步骤:
在步骤201中,接收基站发送的资源配置信息。
在步骤202中,确定触发随机接入的目标网络切片的切片信息。
在步骤203中,至少基于所述资源配置信息和所述切片信息,确定第一随机接入资源。
在步骤204中,基于所述第一随机接入资源发起随机接入。
在步骤205中,响应于满足预设回退条件,不进行资源回退。
在一个可能的实现方式中,将所述目标网络切片对应的指定随机接入 资源作为所述第一随机接入资源发起随机接入时,满足所述预设回退条件,不进行资源回退。
在另一个可能的实现方式中,将所述公共随机接入资源作为所述第一随机接入资源发起随机接入时,满足所述预设回退条件,不进行资源回退。
其中,预设回退条件包括以下任一项:基于所述第一随机接入资源发起随机接入的失败次数达到第一回退次数阈值;第一回退定时器到期;或,接收到与所述目标网络切片对应的随机接入资源回退指示消息。
上述实施例中,可以在满足预设回退条件的情况下,不进行回退,可用性高。
在一些可选实施例中,本公开实施例提供了一种随机接入方法,可以用于用户设备UE,参照图3所示,图3是根据一实施例示出的一种随机接入方法流程图,该方法可以包括以下步骤:
在步骤301中,接收基站发送的资源配置信息。
在步骤302中,确定触发随机接入的目标网络切片的切片信息。
在步骤303中,至少基于所述资源配置信息和所述切片信息,确定第一随机接入资源。
在步骤304中,基于所述第一随机接入资源发起随机接入。
在步骤305中,响应于满足预设回退条件,确定需要回退到的第二随机接入资源。
基于所述第二随机接入资源重新发起随机接入。其中,预设回退条件包括以下任一项:基于所述第一随机接入资源发起随机接入的失败次数达到第一回退次数阈值;第一回退定时器到期;或,接收到与所述目标网络切片对应的随机接入资源回退指示消息。
在步骤306中,基于所述第二随机接入资源重新发起随机接入。
上述实施例中,用户设备在第一随机接入资源发生多次碰撞的情况下,可以进行资源回退,基于回退到的第二随机接入资源上重新发起随机接入。避免UE一直在第一随机接入资源上发起随机接入,直到达到随机接入最 大次数,导致随机接入失败,提高UE随机接入的成功率。
在一些可选实施例中,UE可以在基于某个随机接入资源发起随机接入后,响应于确定满足预设回退条件的情况下,可以按照以下任一种方式进行处理:
第一种方式,不进行资源回退。
第二种方式,进行资源回退。
相应地,UE可以确定需要回退到的随机接入资源,并基于回退到的随机接入资源重新发起随机接入。
其中,发起随机接入的随机接入资源与需要回退到的随机接入资源不同。例如,UE基于第一随机接入资源发起随机接入,响应于确定满足预设回退条件,则UE基于回退到的第二随机接入资源重新发起随机接入。第二随机接入资源与第一随机接入资源不同。
上述实施例中,UE可以在满足预设回退条件的情况下,不进行资源回退或基于回退到的第二随机接入资源重新发起随机接入,避免重复使用第一随机接入资源不断发起随机接入所导致的随机接入失败率高的问题。
在一些可选实施例中,UE如果在基于第二随机接入资源重新发起随机接入的过程再次满足预设回退条件,则UE此时可以不进行再次回退,或者,仍进行回退,此时需要确定回退到的第三随机接入资源,基于第三随机接入资源再次发起随机接入。
确定第三随机接入资源的过程与确定第二随机接入资源的过程类似,在此不再赘述。其中,第三随机接入资源与第二随机接入资源不同。
在一些可选实施例中,可以将上述两种情况结合起来,即响应于基于所述第二随机接入资源重新发起随机接入时满足所述预设回退条件,不进行资源回退。或,响应于基于所述第二随机接入资源重新发起随机接入时满足所述预设回退条件,确定需要回退到的第三随机接入资源,基于所述第三随机接入资源重新发起随机接入。确定第三随机接入资源的过程与确定第二随机接入资源的过程类似,后边的实施例中将统一进行介绍,这里 暂不介绍。
在一个可能的实现方式中,预设回退条件可以包括基于所述第一随机接入资源发起随机接入的失败次数达到第一回退次数阈值。这里的第一回退次数阈值可以用于指示回退到所述第二随机接入资源进行随机接入之前,允许基于所述第一随机接入资源发起随机接入的累计失败次数。
例如,第一回退次数阈值为N1,则UE基于第一随机接入资源发起随机接入的失败次数达到N1次,UE确定满足预设回退条件,可以回退到第二随机接入资源上重新发起随机接入。
在本公开实施例中,第一回退次数阈值可以由基站配置。在一个可能的实现方式中,可以由基站通过广播的第三系统消息进行配置。可选地,第一回退次数阈值可以复用相关机制中的回退次数阈值,即legacy阈值。或者可以是基站通过第三系统消息针对每个网络切片或每个网络切片组配置的。
在一个可能的实现方式中,可以由基站通过第三RRC消息进行配置。同样地,第一回退次数阈值可以复用相关机制中的回退次数阈值,即legacy阈值。或者可以是基站通过第三RRC消息针对每个网络切片或每个网络切片组配置的。
在另一个可能的实现方式中,预设回退条件可以包括:第一回退定时器到期。第一回退定时器用于指示回退到所述第二随机接入资源进行随机接入之前,允许基于所述第一随机接入资源发起随机接入的累计时长。
例如,第一回退定时器的时长为t1,则UE基于第一随机接入资源发起随机接入的累计时长达到t1,UE确定满足预设回退条件,可以回退到第二随机接入资源上重新发起随机接入。
在本公开实施例中,第一回退定时器可以由基站配置。在一个可能的实现方式中,可以由基站通过广播的第四系统消息进行配置。在一个可能的实现方式中,可以由基站通过第四RRC消息进行配置。在另一个可能的实现方式中,预设回退条件可以包括:接收到与所述目标网络切片对应 的随机接入资源回退指示消息。
在本公开实施例中,UE可以基于网络侧下发的该目标网络切片对应的随机接入资源回退指示消息,确定满足预设回退条件,从而回退到第二随机接入资源上重新发起随机接入。
可以理解的是,预设回退条件可以包括以上任一项或多项的组合,其他可能的预设回退条件均应属于本公开的保护范围。
上述实施例中,UE可以在满足上述预设回退条件的基础上,进行资源回退,在回退到的第二随机接入资源上重新发起随机接入,提高了随机接入的成功率。
在一些可选实施例中,随机接入回退指示消息可以用于配置第二回退次数阈值和第二回退定时器中的至少一项。其中,所述第二回退次数阈值用于指示从所述第二随机接入资源重新回退到所述第一随机接入资源发起随机接入之前,允许基于所述第二随机接入资源发起随机接入的失败次数,第二回退定时器用于指示从所述第二随机接入资源重新回退到所述第一随机接入资源发起随机接入之前,允许基于所述第二随机接入资源发起随机接入的累计时长。
例如,第二回退次数阈值为N2,则UE从第一随机接入资源回退到第二随机接入资源重新发起随机接入的次数达到N2次,且当前发起随机接入的总次数未达到preamble TransMax(随机接入最大次数),那么UE可以重新回退到第一随机接入资源发起随机接入。
在第一随机接入资源为目标网络切片对应的指定随机接入资源池中的资源的情况下,UE可以优先回退回目标网络切片对应的指定随机接入资源池中的资源。直到再次满足预设回退条件,UE再次进行资源回退。或者UE回退回目标网络切片对应的指定随机接入资源池中的资源,发起随机接入的总次数达到随机接入最大次数,UE可以向高层上报随机接入失败消息。
再例如,第二回退定时器的定时时长为t2,则UE从第一随机接入资 源回退到第二随机接入资源发起随机接入的累计时长达到t2,且当前发起随机接入的总次数未达到随机接入最大次数,那么UE可以重新回退回第一随机接入资源发起随机接入。即UE可以优先选择目标网络切片对应的指定随机接入资源池中的资源再次发起随机接入。直到再次满足预设回退条件,UE再次进行资源回退。或者UE回退回目标网络切片对应的指定随机接入资源池中的资源,发起随机接入的总次数达到随机接入最大次数,UE可以向高层上报随机接入失败消息。
上述实施例中,可以避免UE回退到第二接入资源后,一直在第二随机接入资源上发起随机接入,直到达到随机接入最大次数,同样导致随机接入失败的问题。UE可以在第二随机接入资源发生至少一次碰撞后,重新回退回第一随机接入资源发起随机接入,提高UE随机接入的成功率。
在一些可选实施例中,随机接入资源回退指示消息中没有配置第二回退次数阈值,且没有配置第二回退定时器,那么UE从第一随机接入资源回退到第二随机接入资源进行一次随机接入失败后,当前发起随机接入的总次数未达到随机接入最大次数的情况下,UE可以重新回退回第一随机接入资源上,再次发起随机接入。其中,第一随机接入资源可以包括目标网络切片对应的指定随机接入资源池中的资源。
上述实施例中,可以避免UE回退到第二接入资源后,一直在第二随机接入资源上发起随机接入,直到达到随机接入最大次数,同样导致随机接入失败的问题。UE可以在第二随机接入资源发生一次碰撞后,重新回退回第一随机接入资源发起随机接入,提高UE随机接入的成功率。
在一些可选实施例中,随机接入资源回退指示消息中可以携带fallbackFactor(回退因子),可选地,该fallbackFactor可以为回退概率值,从而让UE实现概率回退。
在本公开实施例中,UE接收到随机接入资源回退指示消息后,可以生成一个随机数,从而根据生成的随机数和随机接入资源回退指示消息中携带的回退概率值,确定是否需要进行资源回退。在确定需要进行资源回 退的情况下,可以基于回退到的第二随机接入资源重新发起随机接入。
在一个可能的实现方式中,UE可以随机生成但不限于一个满足均匀分布的随机数,该随机数可以但不限于位于[0,1]的范围内。如果生成的随机数小于该回退概率值的情况下,UE进行随机接入资源回退,如果生成的随机数大于或等于该回退概率值的情况下,可以不进行随机接入资源回退。
在另一个可能的实现方式中,UE可以生成满足其他分布的随机数,如果生成的随机数大于该回退概率值,UE进行随机接入资源回退,如果生成的随机数小于或等于回退概率值,UE可以不进行资源回退。
上述实施例中,UE可以基于随机接入资源回退指示消息中携带的回退概率值和生成的随机数,确定是否进行资源回退,进而基于回退到的第二随机接入资源重新发起随机接入。避免UE一直在第一随机接入资源上发起随机接入,直到达到随机接入最大次数,导致随机接入失败,实现了UE进行概率回退的目的,提高UE随机接入的成功率。
在一些可选实施例中,随机接入资源回退指示消息中未携带fallbackFactor,那么所有接收到该随机接入资源回退指示消息的UE都进行资源回退。
在一些可选实施例中,基站可以在随机接入响应消息中携带所述目标网络切片对应的随机接入资源回退指示消息。或者,基站可以在第五RRC消息中携带目标网络切片对应的随机接入资源回退指示消息。
在一些可选实施例中,UE可以针对以下任一种情况,采用对应的方式确定第二随机接入资源。
第一种情况,在第一随机接入资源为两步指定随机接入资源的情况下,UE可以在两步指定随机接入资源上发起随机接入满足上述预设回退条件中的至少一项,且基于所述资源配置信息和所述切片信息,确定所述基站配置了所述四步指定随机接入资源的情况下,选择回退到四步指定随机接入资源重新发起随机接入。即将四步指定随机接入资源作为第二随机接入 资源。
第二种情况,在第一随机接入资源为两步指定随机接入资源的情况下,UE可以在两步指定随机接入资源上发起随机接入满足上述预设回退条件中的至少一项,且基于所述资源配置信息和所述切片信息,确定所述基站配置了所述公共随机接入资源的情况下,基于资源配置信息和信号质量。在公共随机接入资源中,确定第二随机接入资源。即选择两步公共随机接入资源或四步公共随机接入资源作为第二随机接入资源。
第三种情况,在第一随机接入资源为两步指定随机接入资源的情况下,UE可以在两步指定随机接入资源上发起随机接入满足上述预设回退条件中的至少一项,且基于所述资源配置信息和所述切片信息,确定所述基站配置了所述公共随机接入资源的情况下,基于基站发送的第一指示信息,先确定能够回退到公共随机接入资源重新发起随机接入之后,基于资源配置信息和信号质量。在公共随机接入资源中,确定第二随机接入资源。即选择两步公共随机接入资源或四步公共随机接入资源作为第二随机接入资源。
在一个可能的实现方式中,如果基站配置了两步公共随机接入资源,且信号质量大于第三门限值,那么UE可以将两步公共随机接入资源作为所述第二随机接入资源。其中,第三门限值用于UE判断是否能够回退到两步公共随机接入资源重新发起随机接入。
具体地,可以由基站通过第五系统消息或第六RRC消息配置至少一个网络切片对应的第三门限值。第三门限值可以复用legacy RSRP阈值,或者由基站另行配置。同样地,基站可以针对每个网络切片配置相同或不同的第三门限值,或者基站可以针对每个网络切片组配置相同或不同的第三门限值。
在另一个可能的实现方式中,基站配置了两步公共随机接入资源以及四步公共随机接入资源,但信号质量小于或等于第三门限值,那么UE可以将四步指定随机接入资源作为所述第二随机接入资源。
在另一个可能的实现方式中,如果基站未配置四步公共随机接入资源,且信号质量小于或等于第三门限值,那么UE可以不回退。
上述实施例可以单独存在,也可以组合存在,本申请对此不作限定。
第四种情况,第一随机接入资源属于所述公共随机接入资源,即UE在公共随机接入资源上发起随机接入时满足预设回退条件,则可以不回退。
或者,可以基于所述资源配置信息和所述切片信息,确定所述基站配置了所述四步公共随机接入资源,将所述四步公共随机接入资源作为所述第二随机接入资源。
或者,基于所述资源配置信息和所述切片信息,确定所述基站配置了与所述目标网络切片对应的指定随机接入资源的情况下,可以在目标网络切片对应的指定随机接入资源中,基于所述资源配置信息和信号质量,确定所述第二随机接入资源。
或者,基于所述资源配置信息和所述切片信息,确定所述基站配置了与所述目标网络切片对应的指定随机接入资源的情况下,基于网络侧指示,确定能够回退到与所述目标网络切片对应的指定随机接入资源重新发起随机接入时,在目标网络切片对应的指定随机接入资源中,基于所述资源配置信息和信号质量,确定所述第二随机接入资源。
在一个可能的实现方式中,如果基于所述资源配置信息,确定所述基站配置了所述四步指定随机接入资源,可以直接将四步指定随机接入资源作为所述第二随机接入资源。
在一个可能的实现方式中,如果基于所述资源配置信息,确定所述基站配置了所述四步指定随机接入资源,且信号质量大于第四门限值,则可以将四步指定随机接入资源作为所述第二随机接入资源。其中,第四门限值用于UE判断是否能够回退到指定随机接入资源重新发起随机接入。第四门限值可以由基站通过第六系统消息或第七RRC消息进行配置,第四门限值也可以复用legacy RSRP阈值,或者由基站另行配置。同样地,基站可以针对每个网络切片配置相同或不同的第四门限值,或者基站可以针对 每个网络切片组配置相同或不同的第四门限值。
以上仅为示例性说明,UE可以基于以上任一项或多项的组合确定第二随机接入资源,或者在基于第二随机接入资源重新发起随机接入再次满足预设回退条件的情况下,不回退或基于类似方式确定第三随机接入资源,从而避免UE一直在相同随机接入资源上发起随机接入,直到达到随机接入最大次数,导致随机接入失败,提高UE随机接入的成功率。
还需要说明的是以上门限值如果涉及到基站通过系统消息和RRC均进行配置的情况下,UE可以基于RRC消息配置的门限值为准。
下面再从基站侧介绍一下本公开提供的随机接入方案。
本公开实施例提供了一种随机接入方法,可以用于基站,参照图4所示,图4是根据一实施例示出的一种随机接入方法流程图,该方法可以包括以下步骤:
在步骤401中,向用户设备UE发送所述资源配置信息。
在本公开实施例中,所述资源配置信息用于配置以下至少一项:公共随机接入资源;至少一个网络切片对应的指定随机接入资源;两步随机接入资源;四步随机接入资源;两步公共随机接入资源;四步公共随机接入资源;两步指定随机接入资源;四步指定随机接入资源。
上述实施例中,基站可以通过资源配置信息为UE配置上述至少一项资源,以便UE确定第一随机接入资源发起随机接入,可用性高。
在一些可选实施例中,基站可以通过系统消息或RRC消息配置与至少一个网络切片对应的第一门限值。其中,第一门限值可以用于UE判断是否能够选择目标网络切片对应的指定随机接入资源作为第一随机接入资源,来发起随机接入。
具体地,基站可以通过第一系统消息或第一RRC消息配置该第一门限值。
在一些可选实施例中,基站可以通过系统消息或RRC消息配置与至少一个网络切片对应的第二门限值。其中,第二门限值可以用于UE判断是 否能够选择两步随机接入资源作为第一随机接入资源,来发起随机接入。
具体地,基站可以通过第二系统消息或第二RRC消息配置该第二门限值。在一个可能的实现方式中,第二门限值可以包括第二门限值#1,具体用于UE判断是否能够选择两步公共随机接入资源。此时,第二门限值#1可以由基站通过第二系统消息或第二RRC消息配置,具体地,第二门限值#1可以复用相关技术中参考信号接收功率阈值,即legacy RSRP阈值。
在一个可能的实现方式中,第二门限值中可以包括第二门限值#2,用于UE判断是否能够选择两步指定随机接入资源作为第一随机接入资源来发起随机接入。第二门限值#2同样可以由基站侧通过第二系统消息或第二RRC消息进行配置,可以复用legacyRSRP阈值,或者由基站针对每个网络切片或每个网络切片组进行配置,或者复用第一门限值,本公开对此不作限定。第二门限值#2可以与第二门限值#1相同或不同,本公开对此同样不作限定。
在一些可选实施例中,基站可以通过系统消息或RRC消息配置与至少一个网络切片对应的第一回退次数阈值。这里的第一回退次数阈值可以用于指示回退到所述第二随机接入资源进行随机接入之前,允许基于所述第一随机接入资源发起随机接入的累计失败次数。
具体地,基站可以通过第三系统消息或第三RRC消息配置该第一回退次数阈值。第一回退次数阈值可以复用legacy阈值,或由基站另外配置。
在一些可选实施例中,基站可以通过系统消息或RRC消息配置第一回退定时器。第一回退定时器用于指示回退到所述第二随机接入资源进行随机接入之前,允许基于所述第一随机接入资源发起随机接入的累计时长。
具体地,基站可以通过第四系统消息或第四RRC消息配置该第一回退定时器。
在一些可选实施例中,基站可以通过随机接入响应消息或第五RRC消息来携带所述目标网络切片对应的随机接入资源回退指示。
在一些可选实施例中,基站可以通过第一指示信息,指示UE能够回 退到公共随机接入资源重新发起随机接入。
在一些可选实施例中,基站可以通过第二指示信息,指示UE能够回退到与目标网络切片对应的指定随机接入资源重新发起随机接入。
在一些可选实施例中,基站可以通过系统消息或RRC消息配置第三门限值。其中,第三门限值用于UE判断是否能够回退到两步公共随机接入资源重新发起随机接入。
具体地,基站可以通过第五系统消息或第六RRC消息配置该第三门限值。第三门限值可以复用legacy RSRP阈值,或者由基站另行配置。
在一些可选实施例中,基站可以通过系统消息或RRC消息配置第四门限值。其中,第四门限值用于UE判断是否能够回退到指定随机接入资源重新发起随机接入。
具体地,基站可以通过第六系统消息或第七RRC消息配置该第三门限值。第四门限值可以复用legacy RSRP阈值,或者由基站针对每个网络切片或每个网络切片组进行配置。
需要说明的是,上述的系统消息可以相同或不同,RRC消息也可以相同或不同,本公开对此不作限定。
下面再结合不同的资源配置信息,对本申请的随机接入过程进行进一步举例说明。
第一种情况下,对应协议中约定的Case 3,基站通过资源配置信息为UE配置了四步指定随机接入资源和两步公共随机接入资源。相关技术中,在发起随机接入时,始终选择四步指定随机接入资源发起随机接入。在满足预设回退条件的情况下,不回退或回退到公共随机接入资源。
而按照本申请提供的随机接入方案,可以按照上述方式选择四步指定随机接入资源或两步公共随机接入资源来发起随机接入。资源回退时包括以下两种情况:
第一种情况,在四步指定随机接入资源上发起随机接入满足预设回退条件。可以不回退。
第二种情况,在两步公共随机接入资源上发起随机接入满足预设回退条件时,可以采用以下方案:
方案一、不回退。
方案二、回退到四步指定随机接入资源重新发起随机接入。
方案三、在信号质量大于第四门限值的情况下,回退到四步指定随机接入资源重新发起随机接入,否则不回退。
方案四、如果基于基站发送的第二指示信息,确定能够回退到目标网络切片对应的指定随机接入资源,则回退到四步指定随机接入资源重新发起随机接入,否则不回退。
方案五、如果基于基站发送的第二指示信息,确定能够回退到目标网络切片对应的指定随机接入资源,且信号质量大于第四门限值,则回退到四步指定随机接入资源重新发起随机接入,否则不回退。
第二种情况下,对应协议中约定的Case 6,基站通过资源配置信息为UE配置了两步指定随机接入资源和两步公共随机接入资源。相关技术中,在发起随机接入时,始终选择两步指定随机接入资源发起随机接入。在满足预设回退条件的情况下,不回退或回退到公共随机接入资源。
而按照本申请提供的随机接入方案,可以按照上述方式选择两步指定随机接入资源或两步公共随机接入资源来发起随机接入。资源回退时一般情况下可以由两步指定随机接入资源回退到两步公共随机接入资源,下面仅以由两步指定随机接入资源上发起随机接入满足预设回退条件为例进行说明:
方案一、不回退。
方案二、回退到两步指定随机接入资源重新发起随机接入。
方案三、如果基于基站发送的第一指示信息,确定能够回退到公共随机接入资源,则回退到两步指定随机接入资源重新发起随机接入,否则不回退。
第三种情况下,对应Case 8,基站通过资源配置信息为UE配置了两 步指定随机接入资源、两步公共随机接入资源以及四步公共随机接入资源。相关技术中,在发起随机接入时,始终选择四步指定随机接入资源发起随机接入。在满足预设回退条件的情况下,从四步指定随机接入资源回退到四步公共随机接入资源。
而按照本申请提供的随机接入方案,可以按照上述方式选择两步指定随机接入资源、两步公共随机接入资源或四步公共随机接入资源的任一项来发起随机接入。资源回退时一般情况下可以包括由两步指定随机接入资源上发起随机接入满足预设回退条件:
第一种情况,在四步指定随机接入资源上发起随机接入满足预设回退条件。
方案一、不回退。
方案二、回退到四步公共随机接入资源重新发起随机接入。
方案三、在信号质量大于第三门限值的情况下,回退到两步公共随机接入资源重新发起随机接入,否则回退到四步公共随机接入资源重新发起随机接入。
方案四、如果基于基站发送的第一指示信息,确定能够回退到公共随机接入资源,则回退到两步公共随机接入资源或四步公共随机接入资源重新发起随机接入,否则不回退。
具体地,可以在信号质量超过第三门限值的情况下,回退到两步公共随机接入资源重新发起随机接入,否则回退到四步公共随机接入资源重新发起随机接入。
第二种情况,在两步公共随机接入资源上发起随机接入满足预设回退条件。
方案一、回退到四步公共随机接入资源重新发起随机接入。
方案二、回退到四步指定随机接入资源重新发起随机接入。
方案三、在信号质量大于第四门限值的情况下,回退到四步指定随机接入资源重新发起随机接入,否则不回退。
方案四、如果基于基站发送的第二指示信息,确定能够回退到目标网络切片对应的指定随机接入资源,则回退到四步指定随机接入资源重新发起随机接入,否则回退到四步公共随机接入资源重新发起随机接入。
第四种情况下,对应协议中约定的Case 9,基站通过资源配置信息为UE配置了四步指定随机接入资源、两步公共随机接入资源以及四步公共随机接入资源。相关技术中,还没有如何发起随机接入及进行资源回退的方案。
按照本申请提供的随机接入方案,可以选择任一项发起随机接入。资源回退时包括以下三种情况:
第一种情况,在两步指定随机接入资源上发起随机接入满足预设回退条件。
方案一、不回退。
方案二、回退到四步指定随机接入资源重新发起随机接入。
方案三、回退到两步公共随机接入资源重新发起随机接入。
方案四、如果基于基站发送的第一指示信息,确定能够回退到公共随机接入资源,则回退到两步公共随机接入资源重新发起随机接入,否则不回退。
第二种情况,在四步指定随机接入资源上发起随机接入满足预设回退条件。
方案一、不回退。
方案二、回退到两步公共随机接入资源重新发起随机接入。
方案三、信号质量大于第三门限值的情况下,回退到两步公共接入资源重新发起随机接入,否则不回退。
方案四、如果基于基站发送的第一指示信息,确定能够回退到公共随机接入资源,则回退到两步公共随机接入资源重新发起随机接入,否则不回退。
方案五、如果基于基站发送的第一指示信息,确定能够回退到公共随机 接入资源,且信号质量大于第三门限值,则回退到两步公共随机接入资源重新发起随机接入,否则不回退。
第三种情况,在两步公共随机接入资源上发起随机接入满足预设回退条件。
方案一、不回退。
方案二、回退到四步指定随机接入资源重新发起随机接入。
方案三、信号质量大于第四门限值的情况下,回退到四步指定接入资源重新发起随机接入,否则不回退。
方案四、如果基于基站发送的第二指示信息,确定能够回退到目标网络切片对应的指定随机接入资源,且信号质量大于第四门限值,则回退到四步指定随机接入资源重新发起随机接入,否则不回退。
方案五、如果基于基站发送的第二指示信息,确定能够回退到目标网络切片对应的指定随机接入资源,则回退到四步指定随机接入资源重新发起随机接入,否则不回退。
上述实施例中,仅为示例性说明,其他采用本申请提供的随机接入方案确定第一随机接入资源,以及是否回退,回退到的第二随机接入资源的方案均应属于本公开的保护范围。
与前述应用功能实现方法实施例相对应,本公开还提供了应用功能实现装置的实施例。
参照图5,图5是根据一示例性实施例示出的一种随机接入装置,所述装置用于用户设备UE,包括:
接收模块501,被配置为接收基站发送的资源配置信息;
第一确定模块502,被配置为确定触发随机接入的目标网络切片的切片信息;
第二确定模块503,被配置为至少基于所述资源配置信息和所述切片信息,确定第一随机接入资源;
随机接入模块504,被配置为基于所述第一随机接入资源发起随机接 入;
其中,所述资源配置信息用于配置以下至少一项:公共随机接入资源;至少一个网络切片对应的指定随机接入资源;两步随机接入资源;四步随机接入资源;两步公共随机接入资源;四步公共随机接入资源;两步指定随机接入资源;四步指定随机接入资源。
参照图6,图6是根据一示例性实施例示出的一种随机接入装置,所述装置用于基站,包括:
发送模块601,被配置为向用户设备UE发送所述资源配置信息;
其中,所述资源配置信息用于配置以下至少一项:公共随机接入资源;至少一个网络切片对应的指定随机接入资源;两步随机接入资源;四步随机接入资源;两步公共随机接入资源;四步公共随机接入资源;两步指定随机接入资源;四步指定随机接入资源。
对于装置实施例而言,由于其基本对应于方法实施例,所以相关之处参见方法实施例的部分说明即可。以上所描述的装置实施例仅仅是示意性的,其中上述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本公开方案的目的。本领域普通技术人员在不付出创造性劳动的情况下,即可以理解并实施。
相应地,本公开还提供了一种计算机可读存储介质,所述计算机可读存储介质存储有计算机程序,所述计算机程序用于执行上述用于UE侧任一所述的随机接入方法。
相应地,本公开还提供了一种计算机可读存储介质,所述计算机可读存储介质存储有计算机程序,所述计算机程序用于执行上述用于基站侧任一所述的随机接入方法。
相应地,本公开还提供了一种随机接入装置,包括:
处理器;
用于存储处理器可执行指令的存储器;
其中,所述处理器被配置为用于执行上述UE侧任一所述的随机接入方法。
图7是根据一示例性实施例示出的一种电子设备700的框图。例如电子设备700可以是手机、平板电脑、电子书阅读器、多媒体播放设备、可穿戴设备、车载用户设备、ipad、智能电视等用户设备。
参照图7,电子设备700可以包括以下一个或多个组件:处理组件702,存储器704,电源组件706,多媒体组件708,音频组件710,输入/输出(I/O)接口712,传感器组件716,以及通信组件718。
处理组件702通常控制电子设备700的整体操作,诸如与显示,电话呼叫,数据随机接入,相机操作和记录操作相关联的操作。处理组件702可以包括一个或多个处理器720来执行指令,以完成上述的随机接入方法的全部或部分步骤。此外,处理组件702可以包括一个或多个模块,便于处理组件702和其他组件之间的交互。例如,处理组件702可以包括多媒体模块,以方便多媒体组件708和处理组件702之间的交互。又如,处理组件702可以从存储器读取可执行指令,以实现上述各实施例提供的一种随机接入方法的步骤。
存储器704被配置为存储各种类型的数据以支持在电子设备700的操作。这些数据的示例包括用于在电子设备700上操作的任何应用程序或方法的指令,联系人数据,电话簿数据,消息,图片,视频等。存储器704可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,如静态随机存取存储器(SRAM),电可擦除可编程只读存储器(EEPROM),可擦除可编程只读存储器(EPROM),可编程只读存储器(PROM),只读存储器(ROM),磁存储器,快闪存储器,磁盘或光盘。
电源组件706为电子设备700的各种组件提供电力。电源组件706可以包括电源管理系统,一个或多个电源,及其他与为电子设备700生成、管理和分配电力相关联的组件。
多媒体组件708包括在所述电子设备700和用户之间的提供一个输出接口的显示屏。在一些实施例中,多媒体组件708包括一个前置摄像头和/或后置摄像头。当电子设备700处于操作模式,如拍摄模式或视频模式时,前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件710被配置为输出和/或输入音频信号。例如,音频组件710包括一个麦克风(MIC),当电子设备700处于操作模式,如呼叫模式、记录模式和语音识别模式时,麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器704或经由通信组件718发送。在一些实施例中,音频组件710还包括一个扬声器,用于输出音频信号。
I/O接口712为处理组件702和外围接口模块之间提供接口,上述外围接口模块可以是键盘,点击轮,按钮等。这些按钮可包括但不限于:主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件716包括一个或多个传感器,用于为电子设备700提供各个方面的状态评估。例如,传感器组件716可以检测到电子设备700的打开/关闭状态,组件的相对定位,例如所述组件为电子设备700的显示器和小键盘,传感器组件716还可以检测电子设备700或电子设备700一个组件的位置改变,用户与电子设备700接触的存在或不存在,电子设备700方位或加速/减速和电子设备700的温度变化。传感器组件716可以包括接近传感器,被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件716还可以包括光传感器,如CMOS或CCD图像传感器,用于在成像应用中使用。在一些实施例中,该传感器组件716还可以包括加速度传感器,陀螺仪传感器,磁传感器,压力传感器或温度传感器。
通信组件718被配置为便于电子设备700和其他设备之间有线或无线方式的组件。电子设备700可以接入基于组件标准的无线网络,如Wi-Fi,2G,3G,4G,5G或6G,或它们的组合。在一个示例性实施例中,通信组件718经由广播信道接收来自外部广播管理系统的广播信号或广播相关 信息。在一个示例性实施例中,所述通信组件718还包括近场组件(NFC)模块,以促进短程通信。例如,在NFC模块可基于射频识别(RFID)技术,红外数据协会(IrDA)技术,超宽带(UWB)技术,蓝牙(BT)技术和其他技术来实现。
在示例性实施例中,电子设备700可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现,用于执行上述用户设备侧任一所述的随机接入方法。
在示例性实施例中,还提供了一种包括指令的非临时性机器可读存储介质,例如包括指令的存储器704,上述指令可由电子设备700的处理器720执行以完成上述随机接入方法。例如,所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
相应地,本公开还提供了一种随机接入装置,包括:
处理器;
用于存储处理器可执行指令的存储器;
其中,所述处理器被配置为用于执行上述基站侧任一所述的随机接入方法。
如图8所示,图8是根据一示例性实施例示出的一种随机接入装置800的一结构示意图。装置800可以被提供为基站。参照图8,装置800包括处理组件822、无线发射/接收组件824、天线组件826、以及无线接口特有的信号处理部分,处理组件822可进一步包括一个或多个处理器。
处理组件822中的其中一个处理器可以被配置为用于执行上述基站侧任一所述的随机接入方法。
本领域技术人员在考虑说明书及实践这里公开的发明后,将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适 应性变化,这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或者惯用技术手段。说明书和实施例仅被视为示例性的,本公开的真正范围和精神由下面的权利要求指出。
应当理解的是,本公开并不局限于上面已经描述并在附图中示出的精确结构,并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (50)

  1. 一种随机接入方法,其特征在于,所述方法用于用户设备UE,包括:
    接收基站发送的资源配置信息;
    确定触发随机接入的目标网络切片的切片信息;
    至少基于所述资源配置信息和所述切片信息,确定第一随机接入资源;
    基于所述第一随机接入资源发起随机接入;
    其中,所述资源配置信息用于配置以下至少一项:公共随机接入资源;至少一个网络切片对应的指定随机接入资源;两步随机接入资源;四步随机接入资源;两步公共随机接入资源;四步公共随机接入资源;两步指定随机接入资源;四步指定随机接入资源。
  2. 根据权利要求1所述的方法,其特征在于,所述至少基于所述资源配置信息和所述切片信息,确定第一随机接入资源,包括:
    基于所述资源配置信息和所述切片信息,确定所述基站至少配置了所述目标网络切片对应的指定随机接入资源;
    将所述目标网络切片对应的指定随机接入资源作为备选资源;
    基于所述备选资源,确定所述第一随机接入资源。
  3. 根据权利要求1所述的方法,其特征在于,所述至少基于所述资源配置信息和所述切片信息,确定第一随机接入资源,包括:
    基于所述资源配置信息和所述切片信息,确定所述基站未配置所述目标网络切片对应的指定随机接入资源,但配置了公共随机接入资源;
    将所述公共随机接入资源作为备选资源;
    基于所述备选资源,确定所述第一随机接入资源。
  4. 根据权利要求1所述的方法,其特征在于,所述至少基于所述资源配置信息和所述切片信息,确定第一随机接入资源,包括:
    基于所述资源配置信息和所述切片信息,确定所述基站至少配置了所 述目标网络切片对应的指定随机接入资源,以及所述公共随机接入资源;
    响应于确定信号质量大于第一门限值,将所述目标网络切片对应的指定随机接入资源作为备选资源;
    响应于确定信号质量小于或等于第一门限值,将所述公共随机接入资源作为备选资源;
    基于所述备选资源,确定所述第一随机接入资源。
  5. 根据权利要求4所述的方法,其特征在于,还包括以下至少一项:
    接收所述基站广播的第一系统消息,所述第一系统消息用于配置与至少一个网络切片对应的所述第一门限值;或,
    接收所述基站发送的第一RRC消息,所述第一RRC消息用于配置与至少一个网络切片对应的所述第一门限值。
  6. 根据权利要求1所述的方法,其特征在于,所述至少基于所述资源配置信息和所述切片信息,确定第一随机接入资源,包括:
    基于所述资源配置信息,确定所述基站配置了所述两步随机接入资源或所述四步随机接入资源;
    将所述两步随机接入资源或所述四步随机接入资源作为备选资源;
    基于所述备选资源,确定所述第一随机接入资源。
  7. 根据权利要求1所述的方法,其特征在于,所述至少基于所述资源配置信息和所述切片信息,确定第一随机接入资源,包括:
    基于所述资源配置信息和所述切片信息,确定所述基站配置了所述两步随机接入资源,以及所述四步随机接入资源;
    响应于确定信号质量大于第二门限值,将所述两步随机接入资源作为备选资源;
    响应于确定信号质量小于或等于第二门限值,将所述四步随机接入资源作为备选资源;
    基于所述备选资源,确定所述第一随机接入资源。
  8. 根据权利要求7所述的方法,其特征在于,还包括以下任一项:
    接收所述基站广播的第二系统消息,所述第二系统消息用于配置与至少一个网络切片对应的所述第二门限值;或,
    接收所述基站发送的第二RRC消息,所述第二RRC消息用于配置与至少一个网络切片对应的所述第二门限值。
  9. 根据权利要求2-8任一项所述的方法,其特征在于,所述基于所述备选资源,确定所述第一随机接入资源,包括以下任一项:
    在所述备选资源包括所述公共随机接入资源、所述目标网络切片对应的指定随机接入资源、所述两步随机接入资源或所述四步随机接入资源中任一项的情况下,将所述备选资源作为所述第一随机接入资源;
    在所述备选资源包括所述公共随机接入资源的情况下,将所述两步公共随机接入资源或所述四步公共随机接入资源作为所述第一随机接入资源;
    在所述备选资源包括所述目标网络切片对应的指定随机接入资源的情况下,将所述两步指定随机接入资源或所述四步指定随机接入资源作为所述第一随机接入资源;
    在所述备选资源包括两步随机接入资源的情况下,将所述两步公共随机接入资源或所述两步指定随机接入资源作为所述第一随机接入资源;或,
    在所述备选资源包括四步随机接入资源的情况下,将所述四步公共随机接入资源或所述四步指定随机接入资源作为所述第一随机接入资源。
  10. 根据权利要求9所述的方法,其特征在于,所述在所述备选资源包括所述目标网络切片对应的指定随机接入资源的情况下,将所述两步指定随机接入资源或所述四步指定随机接入资源作为所述第一随机接入资源,包括:
    在备选资源包括所述目标网络切片对应的指定随机接入资源的情况下,基于所述资源配置信息,确定所述基站至少配置了所述两步指定随机接入资源,以及所述四步指定随机接入资源;
    响应于确定信号质量大于第二门限值,将所述两步指定随机接入资源作为所述第一随机接入资源;或,
    响应于确定信号质量小于或等于所述第二门限值,将所述四步指定随机接入资源作为所述第一随机接入资源。
  11. 根据权利要求9所述的方法,其特征在于,所述在所述备选资源包括两步随机接入资源的情况下,将所述两步公共随机接入资源或所述两步指定随机接入资源作为所述第一随机接入资源,包括:
    在所述备选资源包括两步随机接入资源的情况下,基于所述资源配置信息,确定所述基站配置了所述两步公共随机接入资源和所述两步指定随机接入资源;
    将两步指定随机接入资源作为所述第一随机接入资源;或,
    响应于确定信号质量大于第二门限值,将所述两步指定随机接入资源作为所述第一随机接入资源;或,
    响应于确定信号质量小于或等于第二门限值,将所述两步公共随机接入资源作为所述第一随机接入资源。
  12. 根据权利要求9所述的方法,其特征在于,所述在所述备选资源包括四步随机接入资源的情况下,基于所述资源配置信息,将所述四步公共随机接入资源或所述四步指定随机接入资源作为所述第一随机接入资源,包括:
    在所述备选资源包括四步随机接入资源的情况下,基于所述资源配置信息,确定所述基站配置了所述四步公共随机接入资源和所述四步指定随机接入资源;
    将所述四步指定随机接入资源作为所述第一随机接入资源;或,
    响应于确定信号质量大于第一门限值,将所述四步指定随机接入资源作为所述第一随机接入资源;或,
    响应于确定信号质量小于或等于第一门限值,将所述四步公共随机接入资源作为所述第一随机接入资源。
  13. 根据权利要求1所述的方法,其特征在于,所述公共随机接入资源是多个UE之间共享的随机接入资源,所述多个UE包括支持网络切片 功能的UE和不支持网络切片功能的UE,或,所述多个UE包括支持网络切片功能的UE。
  14. 根据权利要求1所述的方法,其特征在于,还包括:
    响应于满足预设回退条件,不进行资源回退。
  15. 根据权利要求14所述的方法,其特征在于,所述响应于满足预设回退条件,不进行资源回退,包括以下任一项:
    响应于将所述目标网络切片对应的指定随机接入资源作为所述第一随机接入资源发起随机接入时,满足所述预设回退条件,不进行资源回退;或,
    响应于将所述公共随机接入资源作为所述第一随机接入资源发起随机接入时,满足所述预设回退条件,不进行资源回退。
  16. 根据权利要求1所述的方法,其特征在于,还包括:
    响应于满足预设回退条件,确定需要回退到的第二随机接入资源;
    基于所述第二随机接入资源重新发起随机接入。
  17. 根据权利要求16所述的方法,其特征在于,还包括以下任一项:
    响应于基于所述第二随机接入资源重新发起随机接入时满足所述预设回退条件,不进行资源回退;或,
    响应于基于所述第二随机接入资源重新发起随机接入时满足所述预设回退条件,确定需要回退到的第三随机接入资源;
    基于所述第三随机接入资源重新发起随机接入。
  18. 根据权利要求14-17任一项所述的方法,其特征在于,所述预设回退条件包括以下任一项:
    基于所述第一随机接入资源发起随机接入的失败次数达到第一回退次数阈值;
    第一回退定时器到期;或,
    接收到与所述目标网络切片对应的随机接入资源回退指示消息。
  19. 根据权利要求18所述的方法,其特征在于,还包括以下任一项:
    接收所述基站广播的第三系统消息,所述第三系统消息用于配置与至少一个网络切片对应的所述第一回退次数阈值;或,
    接收所述基站发送的第三RRC消息,所述第三RRC消息用于配置与至少一个网络切片对应的所述第一回退次数阈值。
  20. 根据权利要求18所述的方法,其特征在于,还包括以下任一项:
    接收所述基站广播的第四系统消息,所述第四系统消息用于配置所述第一回退定时器;或,
    接收所述基站发送的第四RRC消息,所述第四RRC消息用于配置所述第一回退定时器。
  21. 根据权利要求18所述的方法,其特征在于,所述目标网络切片对应的随机接入资源回退指示消息用于配置第二回退次数阈值和第二回退定时器中的至少一项。
  22. 根据权利要求18所述的方法,其特征在于,所述目标网络切片对应的随机接入资源回退指示消息中携带回退概率值,
    所述基于回退到的第二随机接入资源重新发起随机接入,包括:
    响应于根据生成的随机数和所述回退概率值确定进行回退,基于回退到的第二随机接入资源重新发起随机接入。
  23. 根据权利要求18所述的方法,其特征在于,还包括以下任一项:
    接收携带所述目标网络切片对应的随机接入资源回退指示消息的随机接入响应消息;或,
    接收携带所述目标网络切片对应的随机接入资源回退指示消息的第五RRC消息。
  24. 根据权利要求16所述的方法,其特征在于,所述第一随机接入资源为所述两步指定随机接入资源,
    所述确定需要回退到的第二随机接入资源,包括:
    基于所述资源配置信息和所述切片信息,确定所述基站配置了所述四步指定随机接入资源;
    将所述四步指定随机接入资源作为所述第二随机接入资源。
  25. 根据权利要求16所述的方法,其特征在于,所述第一随机接入资源为所述两步指定随机接入资源,
    所述确定需要回退到的第二随机接入资源,包括:
    基于所述资源配置信息和所述切片信息,确定所述基站配置了所述公共随机接入资源;
    在所述公共随机接入资源中,基于所述资源配置信息和信号质量,确定所述第二随机接入资源。
  26. 根据权利要求16所述的方法,其特征在于,所述第一随机接入资源为所述两步指定随机接入资源,
    所述确定需要回退到的第二随机接入资源,包括:
    基于所述资源配置信息和所述切片信息,确定所述基站配置了所述公共随机接入资源;
    基于所述基站发送的第一指示信息,确定能够回退到所述公共随机接入资源重新发起随机接入;
    在所述公共随机接入资源中,基于所述资源配置信息和信号质量,确定所述第二随机接入资源。
  27. 根据权利要求25或26所述的方法,其特征在于,所述在所述公共随机接入资源中,基于所述资源配置信息和信号质量,确定所述第二随机接入资源,包括:
    基于所述资源配置信息,确定所述基站配置了所述两步公共随机接入资源;
    确定信号质量大于第三门限值;
    将所述两步公共随机接入资源作为所述第二随机接入资源。
  28. 根据权利要求27所述的方法,其特征在于,还包括以下任一项:
    接收所述基站发送的第五系统消息,所述第五系统消息用于配置与至少一个网络切片对应的第三门限值;或,
    接收所述基站发送的第六RRC消息,所述第六RRC消息用于配置与至少一个网络切片对应的第三门限值。
  29. 根据权利要求16所述的方法,其特征在于,所述第一随机接入资源属于所述公共随机接入资源,
    所述确定需要回退到的第二随机接入资源,包括:
    基于所述资源配置信息和所述切片信息,确定所述基站配置了所述四步公共随机接入资源;
    将所述四步公共随机接入资源作为所述第二随机接入资源。
  30. 根据权利要求16所述的方法,其特征在于,所述第一随机接入资源属于所述公共随机接入资源,
    所述确定需要回退到的第二随机接入资源,包括:
    基于所述资源配置信息和所述切片信息,确定所述基站配置了与所述目标网络切片对应的指定随机接入资源;
    在所述目标网络切片对应的指定随机接入资源中,基于所述资源配置信息和信号质量,确定所述第二随机接入资源。
  31. 根据权利要求16所述的方法,其特征在于,所述第一随机接入资源属于所述公共随机接入资源,
    所述确定需要回退到的第二随机接入资源,包括:
    基于所述资源配置信息和所述切片信息,确定所述基站配置了与所述目标网络切片对应的指定随机接入资源;
    基于所述基站发送的第二指示信息,确定能够回退到与所述目标网络切片对应的指定随机接入资源重新发起随机接入;
    在所述目标网络切片对应的指定随机接入资源中,基于所述资源配置信息和信号质量,确定所述第二随机接入资源。
  32. 根据权利要求30或31所述的方法,其特征在于,所述在所述目标网络切片对应的指定随机接入资源中,基于所述资源配置信息和信号质量,确定所述第二随机接入资源,包括:
    基于所述资源配置信息,确定所述基站配置了所述四步指定随机接入资源;
    将所述四步指定随机接入资源作为所述第二随机接入资源。
  33. 根据权利要求30或31所述的方法,其特征在于,所述在所述目标网络切片对应的指定随机接入资源中,基于所述资源配置信息和信号质量,确定所述第二随机接入资源,包括:
    基于所述资源配置信息,确定所述基站配置了所述四步指定随机接入资源;
    确定信号质量大于第四门限值;
    将所述四步指定随机接入资源作为所述第二随机接入资源。
  34. 根据权利要求33所述的方法,其特征在于,还包括以下任一项:
    接收所述基站广播的第六系统消息,所述第六系统消息用于配置与至少一个网络切片对应的第四门限值;或,
    接收所述基站发送的第七RRC消息,所述第七RRC消息用于配置与至少一个网络切片对应的第四门限值。
  35. 一种随机接入方法,其特征在于,所述方法用于基站,包括:
    向用户设备UE发送资源配置信息;
    其中,所述资源配置信息用于配置以下至少一项:公共随机接入资源;至少一个网络切片对应的指定随机接入资源;两步随机接入资源;四步随机接入资源;两步公共随机接入资源;四步公共随机接入资源;两步指定随机接入资源;四步指定随机接入资源。
  36. 根据权利要求35所述的方法,其特征在于,还包括以下任一项:
    广播第一系统消息,所述第一系统消息用于配置与至少一个网络切片对应的第一门限值;或,
    向所述UE发送第一RRC消息,所述第一RRC消息用于配置与至少一个网络切片对应的第一门限值。
  37. 根据权利要求35所述的方法,其特征在于,还包括以下任一项:
    广播第二系统消息,所述第二系统消息用于配置与至少一个网络切片对应的第二门限值;或,
    向所述UE发送第二RRC消息,所述第二RRC消息用于配置与至少一个网络切片对应的第二门限值。
  38. 根据权利要求35所述的方法,其特征在于,还包括以下任一项:
    广播第三系统消息,所述第三系统消息用于配置与至少一个网络切片对应的第一回退次数阈值;或,
    向所述UE发送第三RRC消息,所述第三RRC消息用于配置与至少一个网络切片对应的所述第一回退次数阈值。
  39. 根据权利要求35所述的方法,其特征在于,还包括以下任一项:
    广播第四系统消息,所述第四系统消息用于配置第一回退定时器;或,
    向所述UE发送第四RRC消息,所述第四RRC消息用于配置所述第一回退定时器。
  40. 根据权利要求35所述的方法,其特征在于,还包括以下任一项:
    向所述UE发送携带目标网络切片对应的随机接入资源回退指示消息的随机接入响应消息;或,
    向所述UE发送携带目标网络切片对应的随机接入资源回退指示消息的第五RRC消息。
  41. 根据权利要求35所述的方法,其特征在于,还包括:
    向所述UE发送第一指示信息,所述第一指示信息用于指示能够回退到公共随机接入资源重新发起随机接入。
  42. 根据权利要求35所述的方法,其特征在于,还包括以下任一项:
    向所述UE发送第二指示信息,所述第二指示信息用于指示能够回退到与目标网络切片对应的指定随机接入资源重新发起随机接入。
  43. 根据权利要求35所述的方法,其特征在于,还包括以下任一项:
    广播第五系统消息,所述第五系统消息用于配置与至少一个网络切片对应的第三门限值;或,
    向所述UE发送第六RRC消息,所述第六RRC消息用于配置与至少一个网络切片对应的第三门限值。
  44. 根据权利要求35所述的方法,其特征在于,还包括以下任一项:
    广播第六系统消息,所述第六系统消息用于配置与至少一个网络切片对应的第四门限值;或,
    向所述UE第七RRC消息,所述第七RRC消息用于配置与至少一个网络切片对应的第四门限值。
  45. 一种随机接入装置,其特征在于,所述装置用于用户设备UE,包括:
    接收模块,被配置为接收基站发送的资源配置信息;
    第一确定模块,被配置为确定触发随机接入的目标网络切片的切片信息;
    第二确定模块,被配置为至少基于所述资源配置信息和所述切片信息,确定第一随机接入资源;
    随机接入模块,被配置为基于所述第一随机接入资源发起随机接入;
    其中,所述资源配置信息用于配置以下至少一项:公共随机接入资源;至少一个网络切片对应的指定随机接入资源;两步随机接入资源;四步随机接入资源;两步公共随机接入资源;四步公共随机接入资源;两步指定随机接入资源;四步指定随机接入资源。
  46. 一种随机接入装置,其特征在于,所述装置用于基站,包括:
    发送模块,被配置为向用户设备UE发送资源配置信息;
    其中,所述资源配置信息用于配置以下至少一项:公共随机接入资源;至少一个网络切片对应的指定随机接入资源;两步随机接入资源;四步随机接入资源;两步公共随机接入资源;四步公共随机接入资源;两步指定随机接入资源;四步指定随机接入资源。
  47. 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质存储有计算机程序,所述计算机程序用于执行上述权利要求1-34任一项 所述的随机接入方法。
  48. 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质存储有计算机程序,所述计算机程序用于执行上述权利要求35-44任一项所述的随机接入方法。
  49. 一种随机接入装置,其特征在于,包括:
    处理器;
    用于存储处理器可执行指令的存储器;
    其中,所述处理器被配置为用于执行上述权利要求1-34任一项所述的随机接入方法。
  50. 一种随机接入装置,其特征在于,包括:
    处理器;
    用于存储处理器可执行指令的存储器;
    其中,所述处理器被配置为用于执行上述权利要求35-44任一项所述的随机接入方法。
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