WO2022147699A1 - 随机接入方法、装置和电子设备 - Google Patents

随机接入方法、装置和电子设备 Download PDF

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Publication number
WO2022147699A1
WO2022147699A1 PCT/CN2021/070537 CN2021070537W WO2022147699A1 WO 2022147699 A1 WO2022147699 A1 WO 2022147699A1 CN 2021070537 W CN2021070537 W CN 2021070537W WO 2022147699 A1 WO2022147699 A1 WO 2022147699A1
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WIPO (PCT)
Prior art keywords
random access
step random
user equipment
response
bfr
Prior art date
Application number
PCT/CN2021/070537
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English (en)
French (fr)
Inventor
江小威
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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 PCT/CN2021/070537 priority Critical patent/WO2022147699A1/zh
Priority to CN202180000153.4A priority patent/CN112806090B/zh
Priority to US18/260,551 priority patent/US20240064816A1/en
Publication of WO2022147699A1 publication Critical patent/WO2022147699A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/002—Transmission of channel access control information
    • H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/04—Scheduled or contention-free access
    • H04W74/0836—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a random access method, apparatus, and electronic device.
  • NTN Non-terrestrial Network
  • 5G 5th Generation
  • RTT round-trip time
  • the random access method, device and electronic device proposed in the present application are used to solve the problem of using 4-STEP random access to RA in NTN in the related art, the number of interaction steps is large, and the access delay is too large.
  • the random access method proposed by the embodiment of the first aspect of the present application includes: determining a trigger source of 2-STEP random access;
  • the 2-STEP random access is correspondingly triggered.
  • the triggering of 2-STEP random access includes:
  • a 2-STEP random access is triggered to request the available uplink resources.
  • the available uplink resources include at least one of the following:
  • the corresponding HARQ UL retransmission has no disabled available uplink resources.
  • the triggering of 2-STEP random access includes:
  • the trigger source being the primary cell beam failure recovery BFR and/or the primary and secondary cell beam failure recovery BFR, acquiring the network configuration of the user equipment;
  • the 2-STEP random access is triggered to restore the beam.
  • the method further includes:
  • 2-STEP random access is triggered according to the type of non-contention random access resource to restore the beam.
  • the method further includes:
  • the network configuration including allowing 2-STEP random access to be triggered when the primary cell BFR is triggered and/or when the primary and secondary cell BFR is triggered, and the network configuration includes non-contention random access resources for BFR, obtaining the type of non-contention random access resource for BFR;
  • 2-STEP random access is triggered according to the type of non-contention random access resource to restore the beam.
  • the triggering of 2-STEP random access includes:
  • triggering the regular BSR includes at least one of the following:
  • the network side is configured with a 2-STEP random access logical channel
  • the network side configures the HARQ logical channel for disabling UL retransmission
  • the network side is configured with a low-latency logical channel; wherein, the logical channel is a traffic channel and/or a control channel;
  • the network side is configured to allow user equipment to use 2-STEP random access.
  • the method further includes:
  • select regular BSRs triggered by the logical channel with the highest priority from the multiple regular BSRs and use the Select the random access type triggered by the regular BSR to initiate random access.
  • activation processing or deactivation processing is performed on the network configuration of the user equipment through the medium access control layer control element MAC CE or the physical downlink control channel PDCCH.
  • the triggering of 2-STEP random access includes:
  • a 2-STEP random access is triggered to obtain available uplink resources.
  • the triggering of 2-STEP random access based on the absence of scheduling request resources to obtain available uplink resources includes:
  • the regular buffer status report BSR triggered by the logical channel configured with 2-STEP random access on the network side, or the network side configured with the hybrid automatic repeat request HARQ with UL retransmission disabled The normal BSR triggered by the logical channel, or the secondary cell beam failure recovery BFR, triggers 2-STEP random access to request the available uplink resources.
  • the triggering of 2-STEP random access based on the absence of scheduling request resources to obtain available uplink resources includes:
  • activation processing or deactivation processing is performed on the network configuration of the user equipment through the medium access control layer control element MAC CE or the physical downlink control channel PDCCH.
  • the triggering of 2-STEP random access includes:
  • the network configuration in response to the user equipment includes that the DRB or the logical channel corresponding to the DRB is configured with 2-STEP random access. Or HARQ with UL retransmission disabled, triggering 2-STEP random access to transmit the small data packet, including:
  • the DRB with the highest priority or the logical channel corresponding to the DRB with the highest priority is configured with 2-STEP random access or hybrid automatic retransmission in which UL retransmission is disabled HARQ is requested, triggering 2-STEP random access to transmit the small data packets.
  • the triggering of 2-STEP random access includes:
  • the method further includes:
  • a 2-STEP random access is initiated.
  • the method further includes:
  • a 4-STEP random access is initiated.
  • initiating 2-STEP random access includes:
  • a 2-STEP random access is initiated.
  • the random access method proposed by the embodiment of the second aspect of the present application includes: receiving a 2-STEP random access request sent by a user equipment;
  • the 2-STEP random access request is initiated by the user equipment based on a trigger source.
  • the 2-STEP random access request is:
  • the user equipment sends a 2-STEP random access request for requesting the available uplink resource in response to the trigger source being the secondary cell beam failure recovery BFR and there is no available uplink resource.
  • the available uplink resources include at least one of the following:
  • the corresponding HARQ UL retransmission has no disabled available uplink resources.
  • the 2-STEP random access request is a 2-STEP random access request sent by the user equipment to restore the beam
  • the user equipment obtains the network configuration of the user equipment in response to the trigger source for the primary cell beam failure recovery BFR and/or the primary and secondary cell beam failure recovery BFR; and the user equipment responds to the network configuration Including triggering 2-STEP random access when the BFR of the primary cell is triggered and/or when the BFR of the primary and secondary cells is triggered, and sending a 2-STEP random access request to restore the beam.
  • the 2-STEP random access request sent by the user equipment is:
  • the user equipment acquires the type of the non-contention random access resource for BFR; and sends according to the type of the non-contention random access resource 2-STEP random access request for beam recovery.
  • the 2-STEP random access request sent by the user equipment is:
  • the user equipment includes triggering 2-STEP random access when the primary cell BFR is triggered and/or when the primary and secondary cell BFR is triggered in response to the network configuration, and the network configuration includes non-contention random access for BFR Access resources, obtain the type of non-contention random access resources for BFR; and send a 2-STEP random access request for beam restoration according to the type of non-contention random access resources.
  • the 2-STEP random access request is a 2-STEP random access request sent by the user equipment for requesting available uplink resources. ask;
  • the user equipment triggers the BSR in response to the trigger source being a regular buffer status report BSR, and the available uplink resources do not exist or the available uplink resources that exist do not meet the LCP mapping limit of the logical channel that triggers the BSR. 2-STEP random access to request the available uplink resources.
  • triggering the regular BSR includes at least one of the following:
  • the network side is configured with a 2-STEP random access logical channel
  • the network side configures the HARQ logical channel for disabling UL retransmission
  • the network side is configured with a low-latency logical channel; wherein, the logical channel is a traffic channel and/or a control channel;
  • the network side is configured to allow user equipment to use 2-STEP random access.
  • the user equipment responds that there are multiple regular BSRs, and the types of random access triggered by the multiple regular BSRs are different. , select one type from multiple types to initiate random access; or,
  • the user equipment selects the regular BSR triggered by the logical channel with the highest priority from the multiple regular BSRs , and initiate random access with the selected random access type triggered by the regular BSR.
  • activation processing or deactivation processing is performed on the network configuration of the user equipment through the medium access control layer control element MAC CE or the physical downlink control channel PDCCH.
  • the 2-STEP random access request is:
  • the user equipment sends a 2-STEP random access request for requesting available uplink resources in response to the trigger source being a scheduling request SR and there is no scheduling request resource.
  • the user equipment obtains the trigger source of the SR in response to the trigger source being a scheduling request SR and no scheduling request resource exists; And the user equipment responds to the regular buffer status report BSR triggered by the logical channel configured with 2-STEP random access on the network side in response to the trigger source of the SR, or the network side configures the hybrid automatic using UL retransmission disabled.
  • the normal BSR triggered by the logical channel requesting HARQ, or the BFR of the secondary cell beam failure is retransmitted, and the 2-STEP random access is triggered to request the available uplink resources.
  • the user equipment acquires the network configuration of the user equipment in response to the absence of the scheduling request resource; and the user equipment responds to the The network configuration includes allowing the SR to trigger 2-STEP random access, and triggering 2-STEP random access to acquire the available uplink resources.
  • activation processing or deactivation processing is performed on the network configuration of the user equipment through the medium access control layer control element MAC CE or the physical downlink control channel PDCCH.
  • the 2-STEP random access request is a 2-STEP random access request sent by the user equipment for transmitting small data packets. ask;
  • the user equipment acquires the data bearer DRB that triggers small data packet transmission; and the user equipment includes the DRB or the DRB in response to the network configuration of the user equipment
  • the logical channel corresponding to the DRB is configured with 2-STEP random access or HARQ with UL retransmission disabled, and the 2-STEP random access is triggered to transmit the small data packet.
  • the user equipment acquires the DRB with the highest priority in response to multiple DRBs triggering the transmission of the small data packet; and the In response to the network configuration, the user equipment includes that the DRB with the highest priority or the logical channel corresponding to the DRB with the highest priority is configured with 2-STEP random access or a hybrid automatic repeat request HARQ in which UL retransmission is disabled, A 2-STEP random access is triggered to transmit the small packet.
  • the 2-STEP random access request is:
  • the user equipment In response to the trigger source being small data packet transmission and the network configuration of the user equipment includes allowing the user equipment to trigger 2-STEP random access in an inactive state, the user equipment sends the data for transmitting small packets. 2-STEP random access request for data packets.
  • the 2-STEP random access request is:
  • the user equipment initiates a 2-STEP random access request in response to selecting that the bandwidth portion BWP for initiating random access is configured with 2-STEP random access resources.
  • the method further includes:
  • the 4-STEP random access request is a 4-STEP random access request initiated by the user equipment in response to selecting that the bandwidth part BWP for initiating random access is not configured with 2-STEP random access resources.
  • the user equipment acquires the downlink path loss reference of the BWP in response to the BWP being configured with 2-STEP random access resources.
  • reference signal received power RSRP reference signal received power
  • the user equipment acquires the RSRP threshold corresponding to the trigger source that triggers 2-STEP random access
  • the user equipment responds that the RSRP is greater than or equal to the RSRP threshold, initiates a 2-STEP random access access.
  • the random access apparatus proposed by the embodiment of the third aspect of the present application includes: a determination module configured to determine a trigger source of the 2-STEP random access;
  • a triggering module configured to trigger 2-STEP random access in response to the trigger source of the 2-STEP random access.
  • the random access apparatus proposed by the embodiment of the fourth aspect of the present application includes: a receiving module configured to receive a 2-STEP random access request sent by the user equipment;
  • the 2-STEP random access request is initiated by the user equipment based on a trigger source.
  • the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can perform the random operation described in the embodiment of the first aspect of the present application
  • the access method, or the random access method described in the embodiments of the second aspect
  • the non-transitory computer-readable storage medium provided by the embodiment of the sixth aspect of the present application stores computer instructions, where the computer instructions are used to make the computer execute the random access method described in the embodiment of the first aspect of the present application, or, The random access method described in the embodiments of the second aspect.
  • the trigger source of the 2-STEP random access can be determined; according to the trigger source of the 2-STEP random access, the 2-STEP random access is correspondingly triggered. Therefore, 2-STEP random access can be triggered for the trigger source of 2-STEP random access, the number of interaction steps can be reduced, and the access delay can be reduced.
  • FIG. 1 is a schematic diagram of a random access method provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of another random access method provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of another random access method provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of another random access method provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of another random access method provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another random access method provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of another random access method provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of another random access method provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another random access method provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of another random access method provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of another random access method provided by an embodiment of the present application.
  • FIG. 12 is a schematic diagram of another random access method provided by an embodiment of the present application.
  • FIG. 13 is a schematic diagram of another random access method provided by an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a random access apparatus provided by an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of another random access apparatus provided by an embodiment of the present application.
  • FIG. 16 is a schematic structural diagram of another random access apparatus provided by an embodiment of the present application.
  • FIG. 17 is a schematic structural diagram of another random access apparatus provided by an embodiment of the present application.
  • FIG. 18 is a schematic structural diagram of another random access apparatus provided by an embodiment of the present application.
  • FIG. 19 is a schematic structural diagram of another random access apparatus provided by an embodiment of the present application.
  • FIG. 20 is a schematic structural diagram of another random access apparatus provided by an embodiment of the present application.
  • FIG. 21 is a schematic structural diagram of another random access apparatus provided by an embodiment of the present application.
  • FIG. 22 is a schematic diagram of an electronic device according to an embodiment of the present application.
  • first, second, third, etc. may be used in the embodiments of the present application to describe various information, the information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • the words "if” and “if” as used herein can be interpreted as "at the time of” or "when” or "in response to determining.”
  • the embodiments of the present application provide a random access method, an apparatus, and an electronic device.
  • FIG. 1 is a schematic diagram of a random access method proposed according to the present application. Among them, it should be noted that the random access method of the present application may be executed on the user equipment.
  • the random access method proposed by this application includes the following steps:
  • the trigger source of 2-STEP random access is, for example, beam failure recovery (Beam Failure Recovery, BFR), buffer status report (Buffer Status Report, BSR), scheduling request (Scheduling Request, SR), small data packet transmission Wait.
  • Beam Failure Recovery, BFR Beam Failure Recovery
  • BSR buffer Status Report
  • scheduling request Scheduling Request, SR
  • small data packet transmission Wait the beam failure recovery BFR, the buffer status report BSR and the scheduling request SR are triggered by the user equipment (User Equipment, UE) in the connected state; small data packet transmission is triggered by the user equipment in the inactive state (inactive).
  • the beam failure recovery BFR refers to that, for a serving cell of the user equipment in the connected state, the user equipment monitors the signal quality of a group of beams used for communication with the base station corresponding to the serving cell according to the network configuration. ; If the currently monitored beam signal quality does not meet certain requirements, the physical layer of the user equipment will indicate beam failure (beam failure) to the media access control MAC layer; when the physical layer instructs the MAC layer of beam failures for a certain number of times, the MAC layer will trigger In the beam failure recovery process (BFR), the user equipment monitors a new set of beams according to the network configuration.
  • the serving cell is, for example, a primary cell (Primary Cell, PCell), a primary secondary cell (Primary Secondary Cell, PSCell), and a secondary cell (Secondary Cell, SCell).
  • the buffer status report BSR refers to triggering the buffer status report BSR when the user equipment needs to report the buffer status report BSR for the user equipment in the connected state.
  • the small data packet transmission refers to triggering the small data packet transmission when the small data packet transmission needs to be performed for the user equipment in the inactive state.
  • the base station mentioned in this application may refer to a base station in a transparent transmission mode, or a satellite in a regeneration mode.
  • the transparent transmission mode the NTN ground station sends the signal of the base station gNB to the satellite, the satellite converts the signal to the satellite frequency band, and then sends it to the user equipment through the satellite frequency band. Except for frequency conversion and signal amplification, the satellite does not perform any signal processing on the gNB signal. demodulation.
  • the satellite demodulates and decodes the signal and then re-codes and modulates the signal. This process is regeneration, and the regenerated signal is sent through the satellite frequency band.
  • random access is divided into two types: 4-STEP random access and 2-STEP random access.
  • 4-STEP random access consists of 4 steps. Step 1: The user equipment sends Random Access Preamble to the base station; Step 2: The base station returns Random Access Response to the user equipment; Step 3: The user equipment sends Scheduled Transmission to the base station; Step 4, The base station returns Contention Resolution to the user equipment.
  • 2-STEP random access consists of 2 steps. The first step is MsgA, which is equivalent to the first + third step of 4-STEP random access; the second step is MsgB, which is equivalent to the second + fourth step of 4-STEP random access.
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application. Among them, it should be noted that the random access method of the present application may be executed on the user equipment.
  • the method includes: in response to the trigger source of triggering the 2-STEP random access being a beam failure recovery BFR, obtaining the RSRP threshold corresponding to the trigger source, comparing the RSRP referenced by the downlink path loss of the BWP with the RSRP threshold, and When the RSRP referenced by the downlink path loss of the BWP is greater than or equal to the RSRP threshold, a 2-STEP random access is initiated.
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application. Among them, it should be noted that the random access method of the present application may be executed on the user equipment.
  • the method includes: in response to a trigger source that triggers the 2-STEP random access being a buffer status report BSR, obtaining an RSRP threshold corresponding to the trigger source, comparing the RSRP referenced by the downlink path loss of the BWP with the RSRP threshold, and When the RSRP referenced by the downlink path loss of the BWP is greater than or equal to the RSRP threshold, a 2-STEP random access is initiated.
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application. Among them, it should be noted that the random access method of the present application may be executed on the user equipment.
  • the method includes: in response to the trigger source triggering the 2-STEP random access being the scheduling request SR, acquiring the RSRP threshold corresponding to the trigger source, comparing the RSRP referenced by the downlink path loss of the BWP with the RSRP threshold, and then in the BWP When the RSRP referenced by the downlink path loss is greater than or equal to the RSRP threshold, initiate 2-STEP random access.
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application. Among them, it should be noted that the random access method of the present application may be executed on the user equipment.
  • the method includes: in response to the trigger source for triggering the 2-STEP random access being small data packet transmission, obtaining an RSRP threshold corresponding to the trigger source, comparing the RSRP referenced by the downlink path loss of the BWP with the RSRP threshold, and When the RSRP referenced by the downlink path loss of the BWP is greater than or equal to the RSRP threshold, a 2-STEP random access is initiated.
  • the user equipment when the user equipment triggers the beam failure recovery BFR, it can trigger 2-STEP random access to access the base station as soon as possible to realize beam recovery; when the user equipment triggers the buffer status report BSR, it can trigger 2-STEP Random access to access the base station as soon as possible to send the buffer status report; when the user equipment triggers the scheduling request SR, it can trigger 2-STEP random access to access the base station as soon as possible to send the scheduling request;
  • the device triggers the transmission of small data packets, it can trigger 2-STEP random access to access the base station as soon as possible to realize the transmission of small data packets.
  • the trigger source of 2-STEP random access can be determined; according to the trigger source of 2-STEP random access, the 2-STEP random access is correspondingly triggered.
  • Trigger source of 2-STEP random access trigger 2-STEP random access, reduce the number of interaction steps and reduce the access delay.
  • the random access method proposed by this application includes the following steps:
  • the trigger source of 2-STEP random access is, for example, beam failure recovery (Beam Failure Recovery, BFR), buffer status report (Buffer Status Report, BSR), scheduling request (Scheduling Request, SR), small data packet transmission Wait.
  • Beam Failure Recovery, BFR Beam Failure Recovery
  • BSR buffer Status Report
  • scheduling request Scheduling Request, SR
  • small data packet transmission Wait the beam failure recovery BFR, the buffer status report BSR and the scheduling request SR are triggered by the user equipment (User Equipment, UE) in the connected state; small data packet transmission is triggered by the user equipment in the inactive state (inactive).
  • the available uplink resources may include at least one of the following: available uplink resources for sending BFR medium access control layer control elements MAC CE; available uplink resources for sending truncated BFR MAC CEs; corresponding hybrid automatic retransmission There are no available uplink resources for which UL retransmission of HARQ is requested.
  • the hybrid automatic repeat request refers to that after the user equipment sends the uplink transmission to the base station, the base station receives the uplink transmission and demodulates it, and decides whether to schedule retransmission according to the demodulation result. Since the round-trip time RTT of NTN is very long, this retransmission mechanism will cause data or instructions to be retransmitted successfully after a long time. Therefore, it is necessary to disable the HARQ function for some HARQs, that is, disable the UL retransmission function.
  • the network configuration of the user equipment includes that the BFR MAC CE cannot use the HARQ with UL retransmission disabled.
  • the network configuration of the user equipment may also include one or more of the following MAC CEs that cannot be disabled using UL retransmission HARQ: Configured Grant Confirmation MAC CE, Multiple Entry Configured Grant Confirmation MAC CE , Power Headroom Report (PHR) MAC CE, BSR MAC CE.
  • Configured Grant Confirmation MAC CE Multiple Entry Configured Grant Confirmation MAC CE
  • PHR Power Headroom Report
  • BSR BSR MAC CE.
  • the above-mentioned MAC CE cannot be sent through the available uplink resources in which the UL retransmission of the corresponding HARQ is disabled, and the above-mentioned MAC CE needs to be sent through the available uplink resources in which the UL retransmission of the corresponding HARQ is not disabled.
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application.
  • the random access method of the present application may be executed on the user equipment.
  • the method includes: after the user equipment triggers random access, it can select a bandwidth part (Bandwidth Part, BWP) for initiating random access; in response to the BWP being configured with 2-STEP random access resources, initiating 2-STEP random access; Alternatively, in response to the BWP not being configured with a 2-STEP random access resource, a 4-STEP random access is initiated.
  • BWP Bandwidth Part
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application. Among them, it should be noted that the random access method of the present application may be executed on the user equipment.
  • the method includes: after the user equipment triggers random access, it can select a bandwidth part (Bandwidth Part, BWP) for initiating random access; in response to the BWP being configured with 2-STEP random access resources, initiating 2-STEP random access.
  • BWP Bandwidth Part
  • the user equipment can first obtain the reference signal received power RSRP referenced by the downlink path loss of the BWP; and obtain the RSRP threshold corresponding to the trigger source that triggers the 2-STEP random access; wherein, Different trigger sources correspond to different RSRP thresholds; when the RSRP is greater than or equal to the RSRP threshold, a 2-STEP random access is initiated; when the RSRP is less than the RSRP threshold, a 4-STEP random access is initiated.
  • the RSRP threshold here is different from msgA-RSRP-Threshold.
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application.
  • the random access method of the present application may be executed on the user equipment.
  • the method includes: after the user equipment triggers random access, it can choose to initiate non-competitive random access or competitive random access.
  • the selection of which random access to initiate depends on whether there are random access resources dedicated to the BFR of the secondary cell. If so, initiate non-contention random access; otherwise, initiate contention random access.
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application.
  • the random access method of the present application may be executed on the user equipment.
  • the method includes: after the user equipment triggers random access, it can select a bandwidth part (Bandwidth Part, BWP) to initiate random access; when the BWP is configured with 2-STEP random access resources, initiate 2-STEP random access; Alternatively, when the BWP is not configured with 2-STEP random access resources, initiate 4-STEP random access.
  • BWP Bandwidth Part
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application. Among them, it should be noted that the random access method of the present application may be executed on the user equipment.
  • the method includes: after the user equipment triggers random access, it can select a bandwidth part (Bandwidth Part, BWP) for initiating random access; when the BWP is configured with 2-STEP random access resources, initiate 2-STEP random access.
  • BWP Bandwidth Part
  • the user equipment can first obtain the reference signal received power RSRP referenced by the downlink path loss of the BWP; and obtain the RSRP threshold corresponding to the BFR of the secondary cell that triggers the 2-STEP random access; When the RSRP is greater than or equal to the RSRP threshold, a 2-STEP random access is initiated; when the RSRP is less than the RSRP threshold, a 4-STEP random access is initiated.
  • the RSRP threshold here is different from msgA-RSRP-Threshold.
  • the trigger source of 2-STEP random access can be determined; in response to the trigger source being the auxiliary cell beam failure recovery BFR, based on the absence of available uplink resources, the 2-STEP random access is triggered In order to request available uplink resources, when the BFR of the secondary cell is triggered, 2-STEP random access can be triggered to send the BFR MAC CE, thereby reducing the access delay and improving the beam recovery speed.
  • the random access method proposed in this application includes the following steps:
  • the trigger source of 2-STEP random access is, for example, beam failure recovery (Beam Failure Recovery, BFR), buffer status report (Buffer Status Report, BSR), scheduling request (Scheduling Request, SR), small data packet transmission Wait.
  • Beam Failure Recovery, BFR Beam Failure Recovery
  • BSR buffer Status Report
  • scheduling request Scheduling Request, SR
  • small data packet transmission Wait the beam failure recovery BFR, the buffer status report BSR and the scheduling request SR are triggered by the user equipment (User Equipment, UE) in the connected state; small data packet transmission is triggered by the user equipment in the inactive state (inactive).
  • the available uplink resources may include at least one of the following: available uplink resources for sending BFR medium access control layer control elements MAC CE; available uplink resources for sending truncated BFR MAC CEs; corresponding hybrid automatic retransmission There are no available uplink resources for which UL retransmission of HARQ is requested.
  • the user equipment can directly send the BFR MAC CE or truncate the BFR MAC CE through the available uplink resources, and then monitor a new set of beams to realize beam recovery.
  • the trigger source of 2-STEP random access can be determined; in response to the trigger source being the auxiliary cell beam failure recovery BFR, based on the existence of available uplink resources, beam recovery can be achieved through the available uplink resources. Thereby, the beam recovery speed is improved.
  • the random access method proposed in this application includes the following steps:
  • the trigger source of 2-STEP random access is, for example, beam failure recovery (Beam Failure Recovery, BFR), buffer status report (Buffer Status Report, BSR), scheduling request (Scheduling Request, SR), small data packet transmission Wait.
  • Beam Failure Recovery, BFR Beam Failure Recovery
  • BSR buffer Status Report
  • scheduling request Scheduling Request, SR
  • small data packet transmission Wait the beam failure recovery BFR, the buffer status report BSR and the scheduling request SR are triggered by the user equipment (User Equipment, UE) in the connected state; small data packet transmission is triggered by the user equipment in the inactive state (inactive).
  • S402. Acquire the network configuration of the user equipment in response to the trigger source of the primary cell beam failure to restore the BFR and/or the primary and secondary cell beam failure to restore the BFR.
  • the network configuration of the user equipment may include one or more of the following: allowing 2-STEP random access to be triggered when the BFR of the primary cell is triggered and/or when the BFR of the primary and secondary cells is triggered, non-contention for BFR random access resources, etc.
  • the network configuration of the user equipment includes allowing 2-STEP random access to be triggered when the BFR of the primary cell is triggered and/or the BFR of the primary and secondary cells is triggered, but does not include non-contention random access resources for BFR , the user equipment can only initiate competitive random access.
  • the trigger source of 2-STEP random access can be determined; in response to the trigger source being the primary cell beam failure recovery BFR and/or the primary and secondary cell beam failure recovery BFR, the user equipment's Network configuration; triggering 2-STEP random access to restore the beam in response to the network configuration including allowing 2-STEP random access when the primary cell BFR is triggered and/or when the primary and secondary cell BFR is triggered, thereby enabling When the cell BFR is triggered and/or the primary and secondary cell BFR is triggered, 2-STEP random access is triggered to restore the beam, thereby reducing the access delay and improving the beam recovery speed.
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application. Among them, it should be noted that the random access method of the present application may be executed on the user equipment.
  • the method includes: in response to the user equipment initiating competitive random access, acquiring a bandwidth part (Bandwidth Part, BWP) for initiating random access; when the BWP is configured with 2-STEP random access resources, initiating 2-STEP random access Access to restore the beam; or, when the BWP is not configured with 2-STEP random access resources, initiate 4-STEP random access to restore the beam.
  • BWP Bandwidth Part
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application. Among them, it should be noted that the random access method of the present application may be executed on the user equipment.
  • the method includes: in response to the user equipment initiating competitive random access, acquiring a bandwidth part (Bandwidth Part, BWP) for initiating random access; when the BWP is configured with 2-STEP random access resources, initiating 2-STEP random access Access to restore beam.
  • BWP Bandwidth Part
  • the user equipment can first obtain the reference signal received power RSRP referenced by the downlink path loss of the BWP; and obtain the RSRP threshold corresponding to the BFR of the secondary cell that triggers the 2-STEP random access; When the RSRP is greater than or equal to the RSRP threshold, a 2-STEP random access is initiated; when the RSRP is less than the RSRP threshold, a 4-STEP random access is initiated.
  • the RSRP threshold here is different from msgA-RSRP-Threshold.
  • the random access method proposed in this application includes the following steps:
  • the trigger source of 2-STEP random access is, for example, beam failure recovery (Beam Failure Recovery, BFR), buffer status report (Buffer Status Report, BSR), scheduling request (Scheduling Request, SR), small data packet transmission Wait.
  • Beam Failure Recovery, BFR Beam Failure Recovery
  • BSR buffer Status Report
  • scheduling request Scheduling Request, SR
  • small data packet transmission Wait the beam failure recovery BFR, the buffer status report BSR and the scheduling request SR are triggered by the user equipment (User Equipment, UE) in the connected state; small data packet transmission is triggered by the user equipment in the inactive state (inactive).
  • the network configuration of the user equipment may include one or more of the following: allowing 2-STEP random access to be triggered when the BFR of the primary cell is triggered and/or when the BFR of the primary and secondary cells is triggered, non-contention for BFR random access resources, etc.
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application.
  • the random access method of the present application may be executed on the user equipment.
  • the method includes: when the user equipment network configuration includes non-contention random access resources for BFR, the user equipment can initiate non-contention random access, and according to the non-contention random access resources for BFR type to determine the type of triggered random access. For example, when the type of non-contention random access resource used for BFR is 2-STEP, trigger 2-STEP random access to restore the beam; or, when the type of non-contention random access resource used for BFR is 2-STEP In 4-STEP, trigger 4-STEP random access to restore the beam.
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application.
  • the random access method of the present application may be executed on the user equipment.
  • the method includes: in response to the type of the non-contention random access resource used for BFR being 2-STEP, the user equipment may further select a bandwidth part (Bandwidth Part, BWP), obtain the reference signal received power RSRP referenced by the downlink path loss of the BWP; and obtain the RSRP threshold corresponding to the primary cell BFR and/or the primary and secondary cell BFRs that trigger 2-STEP random access; when the RSRP is greater than or equal to the RSRP threshold , initiate 2-STEP random access; when RSRP is less than the RSRP threshold, initiate 4-STEP random access.
  • the RSRP threshold here is different from msgA-RSRP-Threshold.
  • the trigger source of 2-STEP random access can be determined; in response to the trigger source being the primary cell beam failure recovery BFR and/or the primary and secondary cell beam failure recovery BFR, the user equipment's Network configuration; in response to the network configuration including non-contention random access resources for BFR, obtain the type of non-contention random access resources for BFR; trigger 2-STEP random access according to the type of non-contention random access resources Access to restore the beam, thus, when the BFR of the primary cell is triggered and/or the BFR of the primary and secondary cells is triggered, 2-STEP random access can be triggered to restore the beam, thereby reducing the access delay and improving the beam recovery speed .
  • the random access method proposed in this application includes the following steps:
  • the trigger source of 2-STEP random access is, for example, beam failure recovery (Beam Failure Recovery, BFR), buffer status report (Buffer Status Report, BSR), scheduling request (Scheduling Request, SR), small data packet transmission Wait.
  • Beam Failure Recovery, BFR Beam Failure Recovery
  • BSR buffer Status Report
  • scheduling request Scheduling Request, SR
  • small data packet transmission Wait the beam failure recovery BFR, the buffer status report BSR and the scheduling request SR are triggered by the user equipment (User Equipment, UE) in the connected state; small data packet transmission is triggered by the user equipment in the inactive state (inactive).
  • S602. Acquire the network configuration of the user equipment in response to the trigger source of the primary cell beam failure to restore the BFR and/or the primary and secondary cell beam failure to restore the BFR.
  • the network configuration of the user equipment may include one or more of the following: allowing 2-STEP random access to be triggered when the BFR of the primary cell is triggered and/or when the BFR of the primary and secondary cells is triggered, non-contention for BFR random access resources, etc.
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application. Among them, it should be noted that the random access method of the present application may be executed on the user equipment.
  • the method includes: when the user equipment can initiate non-contention random access, determining the type of the triggered random access according to the type of the non-contention random access resource used for BFR. For example, when the type of non-contention random access resource used for BFR is 2-STEP, trigger 2-STEP random access to restore the beam; or, when the type of non-contention random access resource used for BFR is 2-STEP In 4-STEP, trigger 4-STEP random access to restore the beam.
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application.
  • the random access method of the present application may be executed on the user equipment.
  • the method includes: in response to the type of the non-contention random access resource used for BFR being 2-STEP, the user equipment may further select a bandwidth part (Bandwidth Part, BWP), obtain the reference signal received power RSRP referenced by the downlink path loss of the BWP; and obtain the RSRP threshold corresponding to the primary cell BFR and/or the primary and secondary cell BFRs that trigger 2-STEP random access; when the RSRP is greater than or equal to the RSRP threshold , initiate 2-STEP random access; when RSRP is less than the RSRP threshold, initiate 4-STEP random access.
  • the RSRP threshold here is different from msgA-RSRP-Threshold.
  • the trigger source of 2-STEP random access can be determined; in response to the trigger source being the primary cell beam failure recovery BFR and/or the primary and secondary cell beam failure recovery BFR, the user equipment's network configuration; in response to the network configuration including allowing 2-STEP random access to be triggered when the primary cell BFR is triggered and/or when the primary and secondary cell BFR is triggered, and the network configuration includes non-contention random access resources for BFR, obtaining Type of non-contention random access resources for BFR; triggering 2-STEP random access to restore beams according to the type of non-contention random access resources, thereby enabling primary cell BFR to be triggered and/or primary When the BFR of the secondary cell is triggered, 2-STEP random access is triggered to restore the beam, thereby reducing the access delay and improving the beam recovery speed.
  • the random access method proposed in this application includes the following steps:
  • the trigger source of 2-STEP random access is, for example, beam failure recovery (Beam Failure Recovery, BFR), buffer status report (Buffer Status Report, BSR), scheduling request (Scheduling Request, SR), small data packet transmission Wait.
  • Beam Failure Recovery, BFR Beam Failure Recovery
  • BSR buffer Status Report
  • scheduling request Scheduling Request, SR
  • small data packet transmission Wait the beam failure recovery BFR, the buffer status report BSR and the scheduling request SR are triggered by the user equipment (User Equipment, UE) in the connected state; small data packet transmission is triggered by the user equipment in the inactive state (inactive).
  • the available uplink resources for transmitting the regular BSR may be, for example, uplink shared channel (UL-SCH) resources.
  • triggering the conventional BSR includes at least one of the following: the network side is configured with a 2-STEP random access logical channel; the network side is configured with a HARQ logical channel that disables UL retransmission; the network side is configured with A low-latency logical channel is provided; wherein, the logical channel is a traffic channel and/or a control channel; the network side is configured to allow the user equipment to use 2-STEP random access.
  • the conventional BSR in response to the trigger source being a conventional BSR, and the conventional BSR is triggered by a logical channel configured with 2-STEP random access on the network side, and the network side is configured with a hybrid automatic disabling UL retransmission Triggered by the logical channel of the retransmission request HARQ, and triggered by the logical channel configured with low latency on the network side, based on the absence of available uplink resources or the existence of available uplink resources that do not meet the LCP mapping limit of the logical channel that triggers the BSR, triggers 2- STEP randomly accesses to request available uplink resources.
  • the network side in response to the trigger source being a regular BSR, and the network side configures a logic channel that allows the user equipment to use 2-STEP random access, based on the absence of available uplink resources or the existence of available uplink resources that do not satisfy the logical channel for triggering the BSR
  • the LCP mapping limit of triggers 2-STEP random access to request available uplink resources.
  • the logical channels are traffic channels and/or control channels.
  • the network configuration of the user equipment may be activated or deactivated through the medium access control layer control element MAC CE or the physical downlink control channel PDCCH. That is to say, the network configuration of the user equipment can be activated through the MAC CE or PDCCH, so as to determine whether to trigger 2-STEP random access in combination with the network configuration; the network configuration of the user equipment can also be deactivated through the MAC CE or PDCCH. Activates the process to avoid determining whether to trigger 2-STEP random access in conjunction with the network configuration.
  • the network configuration of the user equipment may be activated or deactivated through the medium access control layer control element MAC CE or the physical downlink control channel PDCCH. That is to say, the network configuration of the user equipment can be activated through the MAC CE or PDCCH, so as to determine whether to trigger 2-STEP random access in combination with the network configuration; the network configuration of the user equipment can also be deactivated through the MAC CE or PDCCH. Activates the process to avoid determining whether to trigger 2-STEP random access in
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application.
  • the random access method of the present application may be executed on the user equipment.
  • the method includes: after triggering the 2-STEP random access, the user equipment may choose to initiate non-competitive random access or competitive random access. After selecting which random access to initiate, you can also select the Bandwidth Part (BWP) to initiate random access; when BWP is configured with 2-STEP random access resources, initiate 2-STEP random access; or, in When the BWP is not configured with 2-STEP random access resources, it initiates 4-STEP random access.
  • BWP Bandwidth Part
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application.
  • the random access method of the present application may be executed on the user equipment.
  • the method includes: after triggering the 2-STEP random access, the user equipment may choose to initiate non-competitive random access or competitive random access. After selecting which random access to initiate, you can also select a Bandwidth Part (BWP) for initiating random access; when BWP is configured with 2-STEP random access resources, initiate 2-STEP random access.
  • BWP Bandwidth Part
  • the user equipment can first obtain the reference signal received power RSRP referenced by the downlink path loss of the BWP; and obtain the RSRP threshold corresponding to the conventional BSR that triggers the 2-STEP random access; If the value is greater than or equal to the RSRP threshold, a 2-STEP random access is initiated; when the RSRP is less than the RSRP threshold, a 4-STEP random access is initiated.
  • the RSRP threshold here is different from msgA-RSRP-Threshold.
  • the trigger source of the 2-STEP random access can be determined; in response to the trigger source being the regular buffer status report BSR, the trigger source is based on the absence of available uplink resources or the existence of available uplink resources that do not satisfy the trigger.
  • the LCP mapping restriction of the logical channel of the BSR triggers 2-STEP random access to request available uplink resources. Therefore, when the regular buffer status report BSR is triggered, the 2-STEP random access can be triggered to send the regular BSR, thereby reducing Access delay, improve the transmission speed of conventional BSR.
  • the random access method proposed in this application includes the following steps:
  • the trigger source of 2-STEP random access is, for example, beam failure recovery (Beam Failure Recovery, BFR), buffer status report (Buffer Status Report, BSR), scheduling request (Scheduling Request, SR), small data packet transmission Wait.
  • Beam Failure Recovery, BFR Beam Failure Recovery
  • BSR buffer Status Report
  • scheduling request Scheduling Request, SR
  • small data packet transmission Wait the beam failure recovery BFR, the buffer status report BSR and the scheduling request SR are triggered by the user equipment (User Equipment, UE) in the connected state; small data packet transmission is triggered by the user equipment in the inactive state (inactive).
  • the user equipment can directly send the conventional BSR through the available uplink resources, so as to realize the fast transmission of the conventional BSR.
  • the trigger source of 2-STEP random access can be determined; in response to the trigger source being the regular buffer status report BSR, based on the existence of available uplink resources, and the existing available uplink resources are sufficient to trigger the BSR
  • the LCP mapping limit of the logical channel is limited, and the conventional BSR is sent through the available uplink resources, thereby improving the transmission speed of the conventional BSR.
  • the random access method proposed by this application includes the following steps:
  • the trigger source of 2-STEP random access is, for example, beam failure recovery (Beam Failure Recovery, BFR), buffer status report (Buffer Status Report, BSR), scheduling request (Scheduling Request, SR), small data packet transmission Wait.
  • Beam Failure Recovery, BFR Beam Failure Recovery
  • BSR buffer Status Report
  • scheduling request Scheduling Request, SR
  • small data packet transmission Wait the beam failure recovery BFR, the buffer status report BSR and the scheduling request SR are triggered by the user equipment (User Equipment, UE) in the connected state; small data packet transmission is triggered by the user equipment in the inactive state (inactive).
  • the trigger source for triggering the scheduling request SR may be, for example, a conventional buffer status report BSR or a beam failure recovery BFR, or the like.
  • the user equipment can obtain the trigger source of the SR; in response to the trigger source of the SR, the regular buffer status report BSR triggered by the logical channel configured with 2-STEP random access on the network side, or The network side is configured to use the normal BSR triggered by the HARQ logical channel in which UL retransmission is disabled, or the secondary cell beam failure recovery BFR, and trigger 2-STEP random access to request available uplink resources; or, respond
  • the trigger source of the SR is other trigger source except the above-mentioned trigger source, and triggers 4-STEP random access to request available uplink resources.
  • the scheduling request resource may be, for example, a physical uplink control channel (Physical Uplink Control Channel, PUCCH) resource.
  • PUCCH Physical Uplink Control Channel
  • the trigger source of the SR is the regular buffer status report BSR triggered by the logical channel configured with 2-STEP random access on the network side, or the network side configured with the hybrid automatic repeat request HARQ with UL retransmission disabled.
  • the user equipment can trigger 2-STEP random access to request the scheduling request resource; and then send the scheduling request through the scheduling request resource to request the available uplink resources;
  • regular BSR is triggered, regular BSR is sent through available uplink resources; when SR is triggered by beam failure recovery BFR, beam recovery is implemented through available uplink resources.
  • the network configuration of the user equipment may be activated or deactivated through the medium access control layer control element MAC CE or the physical downlink control channel PDCCH. That is to say, the network configuration of the user equipment can be activated through the MAC CE or PDCCH, so as to determine whether to trigger 2-STEP random access in combination with the network configuration; the network configuration of the user equipment can also be deactivated through the MAC CE or PDCCH. Activates the process to avoid determining whether to trigger 2-STEP random access in conjunction with the network configuration.
  • the network configuration of the user equipment may be activated or deactivated through the medium access control layer control element MAC CE or the physical downlink control channel PDCCH. That is to say, the network configuration of the user equipment can be activated through the MAC CE or PDCCH, so as to determine whether to trigger 2-STEP random access in combination with the network configuration; the network configuration of the user equipment can also be deactivated through the MAC CE or PDCCH. Activates the process to avoid determining whether to trigger 2-STEP random access in
  • the trigger source of 2-STEP random access can be determined; in response to the trigger source being the scheduling request SR, based on the absence of the scheduling request resource, trigger the 2-STEP random access to obtain available resources Therefore, when the scheduling request SR is triggered, 2-STEP random access can be triggered to send the scheduling request SR, so as to obtain the available uplink resources, thereby reducing the access delay, improving the SR sending speed, and improving the available uplink resources of the request. resource velocity.
  • the random access method proposed in this application includes the following steps:
  • the trigger source of 2-STEP random access is, for example, beam failure recovery (Beam Failure Recovery, BFR), buffer status report (Buffer Status Report, BSR), scheduling request (Scheduling Request, SR), small data packet transmission Wait.
  • Beam Failure Recovery, BFR Beam Failure Recovery
  • BSR buffer Status Report
  • scheduling request Scheduling Request, SR
  • small data packet transmission Wait the beam failure recovery BFR, the buffer status report BSR and the scheduling request SR are triggered by the user equipment (User Equipment, UE) in the connected state; small data packet transmission is triggered by the user equipment in the inactive state (inactive).
  • the trigger source for triggering the scheduling request SR may be, for example, a conventional buffer status report BSR or a beam failure recovery BFR, or the like.
  • the user equipment can send the scheduling request through the scheduling request resource to request the available uplink resources, and when the SR is triggered by the conventional BSR, the conventional BSR is sent through the available uplink resources; when the SR is triggered by the beam failure, the BFR is restored When triggered, beam recovery is achieved through available uplink resources.
  • the scheduling request resource may be, for example, a physical uplink control channel (Physical Uplink Control Channel, PUCCH) resource.
  • PUCCH Physical Uplink Control Channel
  • the trigger source of the 2-STEP random access can be determined; in response to the trigger source being the scheduling request SR, based on the existence of the scheduling request resource, the available uplink resource is requested through the scheduling request resource, thereby , when the scheduling request SR is triggered and the scheduling request resource exists, the available uplink resource can be requested through the scheduling request resource, thereby reducing the access delay and improving the speed of requesting the available uplink resource.
  • the random access method proposed in this application includes the following steps:
  • the trigger source of 2-STEP random access is, for example, beam failure recovery (Beam Failure Recovery, BFR), buffer status report (Buffer Status Report, BSR), scheduling request (Scheduling Request, SR), small data packet transmission Wait.
  • Beam Failure Recovery, BFR Beam Failure Recovery
  • BSR buffer Status Report
  • scheduling request Scheduling Request, SR
  • small data packet transmission Wait the beam failure recovery BFR, the buffer status report BSR and the scheduling request SR are triggered by the user equipment (User Equipment, UE) in the connected state; small data packet transmission is triggered by the user equipment in the inactive state (inactive).
  • DRB Data Radio Bearer
  • the RRC layer when the RRC layer instructs the MAC layer to transmit small data packets, it may further indicate whether to use random access or a configured grant (configured grant) to transmit small data packets. For example, if the network configuration of the user equipment does not include the configuration authorization resource, or, although the configuration authorization resource is included, the configuration authorization resource does not meet the LCP mapping restriction of the logical channel corresponding to the data bearer, the RRC layer instructs the MAC layer to use random access. incoming for small packet transmission. In addition, if it is indicated to use random access for small data packet transmission, it may further indicate whether to use 2-STEP random access for small data packet transmission.
  • a configured grant configured grant
  • the DRB with the highest priority when there are multiple DRBs that trigger the transmission of small data packets, the DRB with the highest priority can be obtained; the network configuration of the user equipment includes the DRB with the highest priority or the logic corresponding to the DRB with the highest priority
  • the channel is configured with 2-STEP random access resources or HARQ with UL retransmission disabled, triggering 2-STEP random access to transmit small data packets.
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application.
  • the random access method of the present application may be executed on the user equipment.
  • the method includes: after triggering the 2-STEP random access, the user equipment may choose to initiate non-competitive random access or competitive random access. After selecting which random access to initiate, you can also select the Bandwidth Part (BWP) to initiate random access; when BWP is configured with 2-STEP random access resources, initiate 2-STEP random access; or, in When the BWP is not configured with 2-STEP random access resources, it initiates 4-STEP random access.
  • BWP Bandwidth Part
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application.
  • the random access method of the present application may be executed on the user equipment.
  • the method includes: in response to the BWP being configured with 2-STEP random access resources, the user equipment can first obtain the reference signal received power RSRP referenced by the downlink path loss of the BWP; and obtain small data that triggers 2-STEP random access
  • the RSRP threshold corresponding to the packet transmission; when the RSRP is greater than or equal to the RSRP threshold, a 2-STEP random access is initiated; when the RSRP is less than the RSRP threshold, a 4-STEP random access is initiated.
  • the RSRP threshold here is different from msgA-RSRP-Threshold.
  • the trigger source of 2-STEP random access can be determined; in response to the trigger source being small data packet transmission, the data bearer DRB that triggers the small data packet transmission is obtained;
  • the network configuration includes DRB or the logical channel corresponding to the DRB is configured with 2-STEP random access or HARQ with UL retransmission disabled, and triggers 2-STEP random access to transmit small data packets.
  • 2-STEP random access is triggered to transmit small data packets, thereby reducing the access delay and improving the transmission speed of small data packets.
  • the random access method proposed in this application includes the following steps:
  • the trigger source of 2-STEP random access is, for example, beam failure recovery (Beam Failure Recovery, BFR), buffer status report (Buffer Status Report, BSR), scheduling request (Scheduling Request, SR), small data packet transmission Wait.
  • Beam Failure Recovery, BFR Beam Failure Recovery
  • BSR buffer Status Report
  • scheduling request Scheduling Request, SR
  • small data packet transmission Wait the beam failure recovery BFR, the buffer status report BSR and the scheduling request SR are triggered by the user equipment (User Equipment, UE) in the connected state; small data packet transmission is triggered by the user equipment in the inactive state (inactive).
  • small data packet transmission generally refers to small data packet transmission that needs to be performed when the user equipment is in an inactive state.
  • the user equipment may also trigger 4-STEP random access to transmit small data packets in response to the network configuration not including allowing the user equipment to trigger 2-STEP random access in an inactive state.
  • the random access triggered by the user equipment in the inactive state may include one or more of the following: random access triggered by small data packet transmission and random access triggered by non-small data packet transmission.
  • the random access triggered by the transmission of non-small data packets for example, the random access triggered by the SI request, the random access triggered by the RRC layer, and the like.
  • the network configuration in response to the trigger source being the SI request, or in response to the trigger source being the RRC layer, the network configuration includes allowing the user equipment to trigger 2-STEP random access in the inactive state, and the user equipment also 2-STEP random access can be triggered.
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application.
  • the random access method of the present application may be executed on the user equipment.
  • the method includes: after triggering the 2-STEP random access, the user equipment may choose to initiate non-competitive random access or competitive random access. After selecting which random access to initiate, you can also select the Bandwidth Part (BWP) to initiate random access; when BWP is configured with 2-STEP random access resources, initiate 2-STEP random access; or, in When the BWP is not configured with 2-STEP random access resources, it initiates 4-STEP random access.
  • BWP Bandwidth Part
  • a random access method proposed in this application can be performed alone or in conjunction with other methods disclosed in this application.
  • the random access method of the present application may be executed on the user equipment.
  • the method includes: in response to the BWP being configured with 2-STEP random access resources, the user equipment can first obtain the reference signal received power RSRP referenced by the downlink path loss of the BWP; and obtain the transmission of small data packets that trigger the 2-STEP random access Corresponding RSRP threshold; when RSRP is greater than or equal to the RSRP threshold, initiate 2-STEP random access; when RSRP is less than the RSRP threshold, initiate 4-STEP random access.
  • the RSRP threshold here is different from msgA-RSRP-Threshold.
  • the trigger source of 2-STEP random access can be determined; in response to the trigger source being small data packet transmission, the network configuration of the user equipment is obtained; Trigger 2-STEP random access in inactive state, trigger 2-STEP random access to transmit small data packets, thus, when small data packet transmission is triggered, trigger 2-STEP random access to transmit small data packets , thereby reducing the access delay and improving the transmission speed of small data packets.
  • FIG. 13 is a schematic diagram of a random access method proposed in the present application.
  • the random access method of the present application may be executed on a network side device corresponding to the user equipment.
  • network side devices such as base stations, satellites, etc.
  • the random access method proposed by this application includes the following steps:
  • the trigger source of 2-STEP random access is, for example, beam failure recovery (Beam Failure Recovery, BFR), buffer status report (Buffer Status Report, BSR), scheduling request (Scheduling Request, SR), small data packet transmission Wait.
  • Beam Failure Recovery, BFR Beam Failure Recovery
  • BSR buffer Status Report
  • scheduling request Scheduling Request, SR
  • small data packet transmission Wait the beam failure recovery BFR, the buffer status report BSR and the scheduling request SR are triggered by the user equipment (User Equipment, UE) in the connected state; small data packet transmission is triggered by the user equipment in the inactive state (inactive).
  • random access is divided into two types: 4-STEP random access and 2-STEP random access.
  • 4-STEP random access consists of 4 steps. Step 1: The user equipment sends Random Access Preamble to the base station; Step 2: The base station returns Random Access Response to the user equipment; Step 3: The user equipment sends Scheduled Transmission to the base station; Step 4, The base station returns Contention Resolution to the user equipment.
  • 2-STEP random access consists of 2 steps. The first step is MsgA, which is equivalent to the first + third step of 4-STEP random access; the second step is MsgB, which is equivalent to the second + fourth step of 4-STEP random access.
  • the user equipment can select the bandwidth part (Bandwidth Part, BWP) to initiate random access; STEP random access; or, in response to the BWP not being configured with 2-STEP random access resources, initiate 4-STEP random access.
  • BWP Bandwidth Part
  • the user equipment can first obtain the reference signal received power RSRP referenced by the downlink path loss of the BWP; and obtain the RSRP corresponding to the trigger source that triggers the 2-STEP random access Threshold; where different trigger sources correspond to different RSRP thresholds; when RSRP is greater than or equal to the RSRP threshold, initiate 2-STEP random access; when RSRP is less than the RSRP threshold, initiate 4-STEP random access.
  • the RSRP threshold here is different from msgA-RSRP-Threshold.
  • the 2-STEP random access request is: a 2-STEP random access request for requesting available uplink resources sent by the user equipment in response to the trigger source being the secondary cell beam failure recovery BFR and no available uplink resources. access request.
  • the available uplink resources may include at least one of the following: available uplink resources for sending BFR media access control layer control elements MAC CE; available uplink resources for sending truncated BFR MAC CEs; corresponding hybrid automatic repeat request HARQ UL retransmissions are not disabled for available uplink resources.
  • the 2-STEP random access request is a 2-STEP random access request sent by the user equipment to restore the beam.
  • the user equipment obtains the network configuration of the user equipment in response to the beam failure recovery BFR of the primary cell and/or the beam failure recovery of the primary and secondary cells in response to the trigger source; and the user equipment in response to the network configuration includes allowing the primary cell BFR to be triggered and/or Or trigger 2-STEP random access when the BFR of the primary and secondary cells is triggered, and send a 2-STEP random access request to restore the beam.
  • the 2-STEP random access request sent by the user equipment may be: in response to the network configuration including the non-contention random access resources for BFR, the user equipment obtains the type of the non-contention random access resources used for BFR; And the 2-STEP random access request for beam restoration is sent according to the type of non-contention random access resource.
  • the 2-STEP random access request sent by the user equipment may be: the user equipment, in response to the network configuration, includes allowing the 2-STEP random access to be triggered when the BFR of the primary cell is triggered and/or when the BFR of the primary and secondary cells is triggered, and the network
  • the configuration includes non-contention random access resources for BFR, obtaining the type of non-contention random access resources for BFR; and sending 2-STEP for restoring beams according to the type of non-contention random access resources random access request.
  • the 2-STEP random access request is a 2-STEP random access request sent by the user equipment and used to request available uplink resources.
  • the user equipment triggers 2-STEP random access to request the available uplink in response to the trigger source being the regular buffer status report BSR, and there is no available uplink resource or the available uplink resource does not meet the LCP mapping limit of the logical channel that triggers the BSR resource.
  • triggering the conventional BSR may include at least one of the following: the network side is configured with a 2-STEP random access logical channel; the network side is configured with a HARQ logical channel that disables UL retransmission; the network side is configured with A low-latency logical channel; wherein, the logical channel is a traffic channel and/or a control channel; the network side is configured to allow user equipment to use 2-STEP random access.
  • the user equipment may select one type from the multiple types to initiate random access in response to multiple regular BSRs and the random access types triggered by the multiple regular BSRs are different; or, the user equipment may respond to the regular BSR There are multiple BSRs, and the random access types triggered by the multiple regular BSRs are different.
  • the regular BSR triggered by the logical channel with the highest priority is selected from the multiple regular BSRs, and the random access triggered by the selected regular BSR is used. type to initiate random access.
  • the network side device may perform activation processing or deactivation processing on the network configuration of the user equipment through the media access control layer control element MAC CE or the physical downlink control channel PDCCH.
  • the 2-STEP random access request is: a 2-STEP random access request for requesting available uplink resources sent by the user equipment in response to the trigger source being a scheduling request SR and no scheduling request resources exist ask.
  • the user equipment can obtain the trigger source of the SR in response to the trigger source being the scheduling request SR and there is no scheduling request resource; and the trigger source of the user equipment in response to the SR is the logical channel configured with the 2-STEP random access on the network side.
  • the user equipment may obtain the network configuration of the user equipment in response to the absence of the scheduling request resource; and the user equipment may, in response to the network configuration, include allowing SR to trigger 2-STEP random access, and trigger 2-STEP random access to obtain available uplink resources .
  • the network side device may perform activation processing or deactivation processing on the network configuration of the user equipment through the media access control layer control element MAC CE or the physical downlink control channel PDCCH.
  • the 2-STEP random access request is a 2-STEP random access request sent by the user equipment for transmitting small data packets; wherein, the user equipment obtains the small data packet transmission in response to the trigger source being the transmission of small data packets.
  • the data that triggers the transmission of the small data packet bears DRB; and the user equipment, in response to the network configuration of the user equipment, includes that the DRB or the logical channel corresponding to the DRB is configured with 2-STEP random access or UL retransmission is disabled Hybrid automatic repeat request HARQ, 2-STEP random access is triggered to transmit small packets.
  • the user equipment may acquire the DRB with the highest priority in response to multiple DRBs triggering the transmission of small data packets; and the user equipment may, in response to the network configuration, include the DRB with the highest priority or the logical channel configuration corresponding to the DRB with the highest priority.
  • 2-STEP random access or HARQ with UL retransmission disabled triggers 2-STEP random access to transmit small packets.
  • the 2-STEP random access request is: the user equipment responds that the trigger source is small data packet transmission and the network configuration of the user equipment includes allowing the user equipment to trigger the 2-STEP random access in an inactive state 2-STEP random access request for transmitting small data packets is sent.
  • the 2-STEP random access request is: a 2-STEP random access request initiated by the user equipment in response to selecting that the bandwidth part BWP for initiating random access is configured with 2-STEP random access resources.
  • the network side device may also receive a 4-STEP random access request initiated by the user equipment; wherein, the 4-STEP random access request is that the user equipment responds to selecting the bandwidth part BWP that initiates random access A 4-STEP random access request initiated without a 2-STEP random access resource configured.
  • the 2-STEP random access request sent by the user equipment can be received; wherein, the 2-STEP random access request is initiated by the user equipment based on the trigger source, so that the 2-STEP random access request can be - Trigger source of STEP random access, trigger 2-STEP random access, reduce the number of interactive steps and reduce the access delay.
  • the present application further provides a random access device, because the random access device provided by the embodiments of the present application is similar to the random access methods provided by the above-mentioned embodiments.
  • the implementation of the random access method is also applicable to the random access apparatus provided in this embodiment, which is not described in detail in this embodiment.
  • FIG. 14 to FIG. 21 are schematic structural diagrams of a random access apparatus proposed in this application.
  • FIG. 14 is a schematic structural diagram of a random access apparatus provided by the present application. The apparatus is applied to user equipment UE.
  • the random access apparatus 1000 includes: a determination module 100 and a trigger module 200 .
  • the determining module 100 is configured to determine the trigger source of the 2-STEP random access;
  • the triggering module 200 is configured to correspondingly trigger the 2-STEP random access according to the trigger source of the 2-STEP random access. enter.
  • the random access apparatus 1000 may further include: an acquisition module configured to acquire the bandwidth part BWP selected by the user equipment to initiate random access;
  • an initiating module configured to initiate 2-STEP random access in response to the BWP being configured with 2-STEP random access resources; or, in response to the BWP not being configured with 2-STEP random access resources, initiate 4-STEP random access STEP random access.
  • the initiating module is specifically configured to, in response to the BWP being configured with a 2-STEP random access resource, obtain the reference signal received power RSRP referenced by the downlink path loss of the BWP; RSRP threshold corresponding to the trigger source of the access; in response to the RSRP being greater than or equal to the RSRP threshold, initiate 2-STEP random access.
  • the trigger source of 2-STEP random access can be determined; the 2-STEP random access can be triggered according to the trigger source of 2-STEP random access.
  • the trigger source of STEP random access triggers 2-STEP random access, reduces the number of interactive steps, and reduces the access delay.
  • the trigger module 200 in Figure 14 includes: a first trigger unit 210;
  • the first triggering unit 210 is configured to, in response to the trigger source being the secondary cell beam failure, recover the BFR, and based on the absence of available uplink resources, trigger 2-STEP random access to request the available uplink resources.
  • the triggering module 200 may further include: a first processing unit 220 configured to implement beam recovery by using the available uplink resources based on the existence of the available uplink resources.
  • the available uplink resources include at least one of the following: available uplink resources for sending BFR media access control layer control elements MAC CE; available uplink resources for sending truncated BFR MAC CEs; UL retransmission requesting HARQ has no available uplink resources disabled.
  • the trigger source of 2-STEP random access can be determined; in response to the trigger source being the auxiliary cell beam failure recovery BFR, based on the absence of available uplink resources, the 2-STEP random access is triggered In order to request available uplink resources, when the BFR of the secondary cell is triggered, 2-STEP random access can be triggered to send the BFR MAC CE, thereby reducing the access delay and improving the beam recovery speed.
  • the triggering module 200 in FIG. 14 includes: a first acquiring unit 230 and a second triggering unit 240;
  • the first obtaining unit 230 is configured to obtain the network configuration of the user equipment in response to the trigger source for the primary cell beam failure recovery BFR and/or the primary and secondary cell beam failure recovery BFR;
  • the second triggering unit 240 is configured to trigger 2-STEP random access to recover in response to the network configuration including allowing the primary cell BFR to be triggered and/or the primary and secondary cell BFR to trigger 2-STEP random access to recover beam.
  • the first acquiring unit 230 is further configured to include non-contention random access resources for BFR in response to the network configuration; the second triggering unit 240 is further configured to To trigger 2-STEP random access according to the type of non-contention random access resource to recover the beam.
  • the first obtaining unit 230 is further configured to trigger 2-STEP random access when the network configuration includes allowing the primary cell BFR to be triggered and/or the primary and secondary cell BFR to be triggered. input, and including non-contention random access resources for BFR, to obtain the type of non-contention random access resources for BFR; the second trigger unit 240 is also configured to be based on non-contention random access The type of resource triggers 2-STEP random access to restore the beam.
  • the trigger source of 2-STEP random access can be determined; in response to the trigger source being the primary cell beam failure recovery BFR and/or the primary and secondary cell beam failure recovery BFR, the user equipment's Network configuration; triggering 2-STEP random access to restore the beam in response to the network configuration including allowing 2-STEP random access when the primary cell BFR is triggered and/or when the primary and secondary cell BFR is triggered, thereby enabling When the cell BFR is triggered and/or the primary and secondary cell BFR is triggered, 2-STEP random access is triggered to restore the beam, thereby reducing the access delay and improving the beam recovery speed.
  • the trigger module 200 in FIG. 14 includes: a third trigger unit 250;
  • the third triggering unit 250 is configured to report BSR in response to the trigger source being a regular buffer status, based on the absence of available uplink resources or the available uplink resources that do not satisfy the LCP mapping of the logical channel that triggers the BSR limit, trigger 2-STEP random access to request the available uplink resources.
  • the triggering module 200 includes: a second processing unit 260, based on the existence of the available uplink resources, and the existing available uplink resources satisfy the LCP mapping restriction of the logical channel triggering the BSR, through the The regular BSR may be sent with uplink resources.
  • triggering the conventional BSR includes at least one of the following: the network side is configured with a logical channel for 2-STEP random access; the network side is configured with a HARQ logical channel for disabling UL retransmission; A low-latency logical channel is configured; wherein, the logical channel is a traffic channel and/or a control channel; the network side is configured to allow user equipment to use 2-STEP random access.
  • the trigger module further includes: a selection unit configured to:
  • select regular BSRs triggered by the logical channel with the highest priority from the multiple regular BSRs and use the Select the random access type triggered by the regular BSR to initiate random access.
  • the network configuration of the user equipment is activated or deactivated through the medium access control layer control element MAC CE or the physical downlink control channel PDCCH.
  • the trigger source of the 2-STEP random access can be determined; in response to the trigger source being the regular buffer status report BSR, the trigger source is based on the absence of available uplink resources or the existence of available uplink resources that do not satisfy the trigger.
  • the LCP mapping restriction of the logical channel of the BSR triggers 2-STEP random access to request available uplink resources. Therefore, when the regular buffer status report BSR is triggered, the 2-STEP random access can be triggered to send the regular BSR, thereby reducing Access delay, improve the transmission speed of conventional BSR.
  • the trigger module 200 in FIG. 14 includes: a fourth trigger unit 270;
  • the fourth triggering unit 270 is configured to, in response to the trigger source being the scheduling request SR, trigger 2-STEP random access to request available uplink resources based on the absence of scheduling request resources.
  • the triggering module 200 further includes: a third processing unit 280, configured to request the available uplink resource through the scheduling request resource based on the existence of the scheduling request resource.
  • a third processing unit 280 configured to request the available uplink resource through the scheduling request resource based on the existence of the scheduling request resource.
  • the fourth triggering unit 270 is specifically configured to, based on the absence of the scheduling request resource, obtain the trigger source of the SR; in response to the trigger source of the SR, configure a 2-STEP random
  • the fourth triggering unit 270 is specifically configured to obtain the network configuration of the user equipment based on the absence of the scheduling request resource; in response to the network configuration, the SR triggering 2-STEP random access includes allowing the SR , trigger 2-STEP random access to acquire the available uplink resources.
  • the network configuration of the user equipment is activated or deactivated through the medium access control layer control element MAC CE or the physical downlink control channel PDCCH.
  • the trigger source of the 2-STEP random access can be determined; in response to the trigger source being the scheduling request SR, based on the existence of the scheduling request resource, the available uplink resource is requested through the scheduling request resource, thereby , when the scheduling request SR is triggered and the scheduling request resource exists, the available uplink resource can be requested through the scheduling request resource, thereby reducing the access delay and improving the speed of requesting the available uplink resource.
  • the triggering module 200 in FIG. 14 includes: a second acquiring unit 290 and a fifth triggering unit 300;
  • the second obtaining unit 290 is configured to, in response to the trigger source being small data packet transmission, obtain a data bearer DRB that triggers small data packet transmission;
  • the fifth triggering unit 300 is configured to, in response to the network configuration of the user equipment including the DRB or the HARQ in which 2-STEP random access or UL retransmission is disabled is configured for the DRB or a logical channel corresponding to the DRB, A 2-STEP random access is triggered to transmit the small packet.
  • the fifth trigger unit 300 is specifically configured as:
  • the DRB with the highest priority or the logical channel corresponding to the DRB with the highest priority is configured with 2-STEP random access or hybrid automatic retransmission in which UL retransmission is disabled HARQ is requested, triggering 2-STEP random access to transmit the small data packets.
  • the trigger source of 2-STEP random access can be determined; in response to the trigger source being small data packet transmission, the data bearer DRB that triggers the small data packet transmission is obtained; in response to the user equipment's
  • the network configuration includes DRB or the logical channel corresponding to the DRB is configured with 2-STEP random access or HARQ with UL retransmission disabled, and triggers 2-STEP random access to transmit small data packets.
  • 2-STEP random access is triggered to transmit small data packets, thereby reducing the access delay and improving the transmission speed of small data packets.
  • the triggering module 200 in FIG. 14 includes: a third acquiring unit 310 and a sixth triggering unit 320;
  • the third obtaining unit 310 is configured to obtain the network configuration of the user equipment in response to the trigger source being small data packet transmission;
  • the sixth triggering unit 320 is configured to, in response to the network configuration, allow the user equipment to trigger 2-STEP random access in an inactive state, and trigger 2-STEP random access to transmit the small data packet.
  • the trigger source of 2-STEP random access can be determined; in response to the trigger source being small data packet transmission, the network configuration of the user equipment can be obtained; Trigger 2-STEP random access in inactive state, trigger 2-STEP random access to transmit small data packets, thus, when small data packet transmission is triggered, trigger 2-STEP random access to transmit small data packets , thereby reducing the access delay and improving the transmission speed of small data packets.
  • FIG. 21 is a schematic structural diagram of a random access apparatus provided by the present application.
  • the apparatus is applied to network-side equipment corresponding to the user equipment UE, such as a base station, a satellite, and the like.
  • the random access apparatus 2000 includes: a receiving module 800 configured to receive a 2-STEP random access request sent by a user equipment; wherein, the 2-STEP random access request is for the user Device initiated based on trigger source.
  • the receiving module 800 is further configured to receive a 4-STEP random access request initiated by the user equipment; wherein, the 4-STEP random access request is that the user equipment initiates a random access in response to selection
  • the incoming bandwidth part BWP is not configured with 2-STEP random access resources and initiates a 4-STEP random access request.
  • the 2-STEP random access request is: a 2-STEP random access request for requesting available uplink resources sent by the user equipment in response to the trigger source being the secondary cell beam failure recovery BFR and no available uplink resources. access request.
  • the available uplink resources may include at least one of the following: available uplink resources for sending BFR media access control layer control elements MAC CE; available uplink resources for sending truncated BFR MAC CEs; corresponding hybrid automatic repeat request HARQ UL retransmissions are not disabled for available uplink resources.
  • the 2-STEP random access request is a 2-STEP random access request sent by the user equipment to restore the beam.
  • the user equipment obtains the network configuration of the user equipment in response to the beam failure recovery BFR of the primary cell and/or the beam failure recovery of the primary and secondary cells in response to the trigger source; and the user equipment in response to the network configuration includes allowing the primary cell BFR to be triggered and/or Or trigger 2-STEP random access when the BFR of the primary and secondary cells is triggered, and send a 2-STEP random access request to restore the beam.
  • the 2-STEP random access request sent by the user equipment may be: in response to the network configuration including the non-contention random access resources for BFR, the user equipment obtains the type of the non-contention random access resources used for BFR; And the 2-STEP random access request for beam restoration is sent according to the type of non-contention random access resource.
  • the 2-STEP random access request sent by the user equipment may be: the user equipment, in response to the network configuration, includes allowing the 2-STEP random access to be triggered when the BFR of the primary cell is triggered and/or when the BFR of the primary and secondary cells is triggered, and the network
  • the configuration includes non-contention random access resources for BFR, obtaining the type of non-contention random access resources for BFR; and sending 2-STEP for restoring beams according to the type of non-contention random access resources random access request.
  • the 2-STEP random access request is a 2-STEP random access request sent by the user equipment and used to request available uplink resources.
  • the user equipment triggers 2-STEP random access to request the available uplink in response to the trigger source being the regular buffer status report BSR, and there is no available uplink resource or the available uplink resource does not meet the LCP mapping limit of the logical channel that triggers the BSR resource.
  • triggering the conventional BSR may include at least one of the following: the network side is configured with a 2-STEP random access logical channel; the network side is configured with a HARQ logical channel that disables UL retransmission; the network side is configured with A low-latency logical channel; wherein, the logical channel is a traffic channel and/or a control channel; the network side is configured to allow user equipment to use 2-STEP random access.
  • the user equipment may select one type from the multiple types to initiate random access in response to multiple regular BSRs and the random access types triggered by the multiple regular BSRs are different; or, the user equipment may respond to the regular BSR There are multiple BSRs, and the random access types triggered by the multiple regular BSRs are different.
  • the regular BSR triggered by the logical channel with the highest priority is selected from the multiple regular BSRs, and the random access triggered by the selected regular BSR is used. type to initiate random access.
  • the network side device may perform activation processing or deactivation processing on the network configuration of the user equipment through the media access control layer control element MAC CE or the physical downlink control channel PDCCH.
  • the 2-STEP random access request is: a 2-STEP random access request for requesting available uplink resources sent by the user equipment in response to the trigger source being a scheduling request SR and no scheduling request resources exist ask.
  • the user equipment can obtain the trigger source of the SR in response to the trigger source being the scheduling request SR and there is no scheduling request resource; and the trigger source of the user equipment in response to the SR is the logical channel configured with the 2-STEP random access on the network side.
  • the user equipment may obtain the network configuration of the user equipment in response to the absence of the scheduling request resource; and the user equipment may, in response to the network configuration, include allowing SR to trigger 2-STEP random access, and trigger 2-STEP random access to obtain available uplink resources .
  • the network side device may perform activation processing or deactivation processing on the network configuration of the user equipment through the media access control layer control element MAC CE or the physical downlink control channel PDCCH.
  • the 2-STEP random access request is a 2-STEP random access request sent by the user equipment for transmitting small data packets; wherein, the user equipment obtains the small data packet transmission in response to the trigger source being the transmission of small data packets.
  • the data that triggers the transmission of the small data packet bears DRB; and the user equipment, in response to the network configuration of the user equipment, includes that the DRB or the logical channel corresponding to the DRB is configured with 2-STEP random access or UL retransmission is disabled Hybrid automatic repeat request HARQ, 2-STEP random access is triggered to transmit small packets.
  • the user equipment may acquire the DRB with the highest priority in response to multiple DRBs triggering the transmission of small data packets; and the user equipment may, in response to the network configuration, include the DRB with the highest priority or the logical channel configuration corresponding to the DRB with the highest priority.
  • 2-STEP random access or HARQ with UL retransmission disabled triggers 2-STEP random access to transmit small packets.
  • the 2-STEP random access request is: the user equipment responds that the trigger source is small data packet transmission and the network configuration of the user equipment includes allowing the user equipment to trigger the 2-STEP random access in an inactive state 2-STEP random access request for transmitting small data packets is sent.
  • the 2-STEP random access request is: a 2-STEP random access request initiated by the user equipment in response to selecting that the bandwidth part BWP for initiating random access is configured with 2-STEP random access resources.
  • the network side device may also receive a 4-STEP random access request initiated by the user equipment; wherein, the 4-STEP random access request is that the user equipment responds to selecting the bandwidth part BWP that initiates random access A 4-STEP random access request initiated without a 2-STEP random access resource configured.
  • the present application further provides an electronic device and a readable storage medium.
  • FIG. 22 it is a block diagram of an electronic device for random access according to an embodiment of the present application.
  • Electronic devices are intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers.
  • Electronic devices may also represent various forms of mobile devices, such as personal digital processors, cellular phones, smart phones, wearable devices, and other similar computing devices.
  • the components shown herein, their connections and relationships, and their functions are by way of example only, and are not intended to limit implementations of the application described and/or claimed herein.
  • the electronic device includes: one or more processors 1100, a memory 1200, and interfaces for connecting various components, including a high-speed interface and a low-speed interface.
  • the various components are interconnected using different buses and may be mounted on a common motherboard or otherwise as desired.
  • the processor may process instructions executed within the electronic device, including instructions stored in or on memory to display graphical information of the GUI on an external input/output device, such as a display device coupled to the interface.
  • multiple processors and/or multiple buses may be used with multiple memories and multiple memories, if desired.
  • multiple electronic devices may be connected, each providing some of the necessary operations (eg, as a server array, a group of blade servers, or a multiprocessor system).
  • a processor 1100 is used as an example.
  • the memory 1200 is the non-transitory computer-readable storage medium provided by the present application.
  • the memory stores instructions executable by at least one processor, so that the at least one processor executes the random access method provided by the present application.
  • the non-transitory computer-readable storage medium of the present application stores computer instructions for causing a computer to execute the random access method provided by the present application.
  • the memory 1200 can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions/modules corresponding to the random access method in the embodiments of the present application (for example, The determining module 100 and the triggering module 200 shown in FIG. 14; another example, the receiving module 800 described in FIG. 21).
  • the processor 1100 executes various functional applications and data processing of the server by running the non-transitory software programs, instructions and modules stored in the memory 1200, that is, implementing the random access method in the above method embodiments.
  • the memory 1200 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function; the storage data area may store data created according to the use of the positioning electronic device, and the like. Additionally, memory 1200 may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid-state storage device. Optionally, the memory 1200 may optionally include memory located remotely relative to the processor 1100, and these remote memories may be connected to the positioning electronic device through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • the random access electronic device may further include: an input device 1300 and an output device 1400 .
  • the processor 1100, the memory 1200, the input device 1300, and the output device 1400 may be connected by a bus or in other ways, and the connection by a bus is taken as an example in FIG. 22 .
  • the input device 1300 may receive input numerical or character information and generate key signal input related to user settings and functional control of the positioning electronic device, such as a touch screen, keypad, mouse, trackpad, touchpad, pointing stick, one or more Input devices such as mouse buttons, trackballs, joysticks, etc.
  • the output device 1400 may include a display device, auxiliary lighting devices (eg, LEDs), haptic feedback devices (eg, vibration motors), and the like.
  • the display device may include, but is not limited to, a liquid crystal display (LCD), a light emitting diode (LED) display, and a plasma display. In some implementations, the display device may be a touch screen.
  • Various implementations of the systems and techniques described herein can be implemented in digital electronic circuitry, integrated circuit systems, application specific ASICs (application specific integrated circuits), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include being implemented in one or more computer programs executable and/or interpretable on a programmable system including at least one programmable processor that The processor, which may be a special purpose or general-purpose programmable processor, may receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device an output device.
  • the processor which may be a special purpose or general-purpose programmable processor, may receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device an output device.
  • machine-readable medium and “computer-readable medium” refer to any computer program product, apparatus, and/or apparatus for providing machine instructions and/or data to a programmable processor ( For example, magnetic disks, optical disks, memories, programmable logic devices (PLDs), including machine-readable media that receive machine instructions as machine-readable signals.
  • machine-readable signal refers to any signal used to provide machine instructions and/or data to a programmable processor.
  • the systems and techniques described herein may be implemented on a computer having a display device (eg, a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user ); and a keyboard and pointing device (eg, a mouse or trackball) through which a user can provide input to the computer.
  • a display device eg, a CRT (cathode ray tube) or LCD (liquid crystal display) monitor
  • a keyboard and pointing device eg, a mouse or trackball
  • Other kinds of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (eg, visual feedback, auditory feedback, or tactile feedback); and can be in any form (including acoustic input, voice input, or tactile input) to receive input from the user.
  • the systems and techniques described herein may be implemented on a computing system that includes back-end components (eg, as a data server), or a computing system that includes middleware components (eg, an application server), or a computing system that includes front-end components (eg, a user's computer having a graphical user interface or web browser through which a user may interact with implementations of the systems and techniques described herein), or including such backend components, middleware components, Or any combination of front-end components in a computing system.
  • the components of the system may be interconnected by any form or medium of digital data communication (eg, a communication network). Examples of communication networks include: Local Area Networks (LANs), Wide Area Networks (WANs), and the Internet.
  • a computer system can include clients and servers.
  • Clients and servers are generally remote from each other and usually interact through a communication network.
  • the relationship of client and server arises by computer programs running on the respective computers and having a client-server relationship to each other.
  • the trigger source of 2-STEP random access can be determined; in response to the trigger source of 2-STEP random access, 2-STEP random access is triggered.
  • Trigger source of STEP random access trigger 2-STEP random access, reduce the number of interactive steps and reduce the access delay.

Abstract

本申请提出了一种随机接入方法、装置和电子设备，涉及无线通信技术领域。该方案为：确定2-STEP随机接入的触发源；根据2-STEP随机接入的触发源，相应的触发2-STEP随机接入，由此，能够针对2-STEP随机接入的触发源，触发2-STEP随机接入，减少交互步数，减少接入时延。

Description

随机接入方法、装置和电子设备 技术领域
本申请涉及无线通信技术领域，尤其涉及一种随机接入方法、装置和电子设备。
背景技术
近年来，非陆地/地面通信(Non-terrestrial Network，NTN)是5G引入的一项重要技术，通过卫星(或无人机)而不是地面基站来提供无线资源。对于NTN，由于往返时间(Round-Trip Time，RTT)很长，通过4-STEP随机接入RA的方式进行随机接入时，交互步数多，接入时延过大。
申请内容
本申请提出的随机接入方法、装置和电子设备，用于解决相关技术中在NTN中采用4-STEP随机接入RA，交互步数多，接入时延过大的问题。
本申请第一方面实施例提出的随机接入方法，包括：确定2-STEP随机接入的触发源；
根据所述2-STEP随机接入的所述触发源，相应的触发2-STEP随机接入。
可选的，在本申请第一方面实施例一种可能的实现方式中，所述触发2-STEP随机接入，包括：
响应于所述触发源为辅助小区波束失败恢复BFR，基于未存在可用上行资源，触发2-STEP随机接入以请求所述可用上行资源。
可选的，在本申请第一方面实施例另一种可能的实现方式中，所述可用上行资源包括以下的至少一种：
用于发送BFR媒体访问控制层控制元素MAC CE的可用上行资源；
用于发送截断BFR MAC CE的可用上行资源；
对应的混合自动重传请求HARQ的UL重传没有被禁用的可用上行资源。
可选的，在本申请第一方面实施例再一种可能的实现方式中，所述触发2-STEP随机接入，包括：
响应于所述触发源为主小区波束失败恢复BFR和/或主辅小区波束失败恢复BFR，获取用户设备的网络配置；
响应于所述网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，触发2-STEP随机接入以恢复波束。
可选的，在本申请第一方面实施例又一种可能的实现方式中，所述方法还包括：
响应于所述网络配置包括用于BFR的非竞争的随机接入资源，获取用于BFR的非竞争的随机接入资源的类型；
根据非竞争的随机接入资源的类型触发2-STEP随机接入以恢复波束。
可选的，在本申请第一方面实施例又一种可能的实现方式中，所述方法还包括：
响应于所述网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，且所述网络配置包括用于BFR的非竞争的随机接入资源，获取用于BFR的非竞争的随机接入资源的类型；
根据非竞争的随机接入资源的类型触发2-STEP随机接入以恢复波束。
可选的，在本申请第一方面实施例又一种可能的实现方式中，所述触发2-STEP随机接入，包括：
响应于所述触发源为常规缓存状态报告BSR，基于未存在可用上行资源或者存在的所述可用上行资源未满足触发所述BSR的逻辑信道的LCP mapping限制，触发2-STEP随机接入以请求所述可用上行资源。
可选的，在本申请第一方面实施例又一种可能的实现方式中，触发所述常规BSR包括以下的至少一种：
网络侧配置了2-STEP随机接入的逻辑信道；
网络侧配置了禁用UL重传的混合自动重传请求HARQ的逻辑信道；
网络侧配置了低时延的逻辑信道；其中，所述逻辑信道为业务信道和/或控制信道；
网络侧配置了允许用户设备使用2-STEP随机接入。
可选的，在本申请第一方面实施例又一种可能的实现方式中，所述方法还包括：
响应于所述常规BSR为多个，且多个所述常规BSR触发的随机接入的类型不同，从多个类型中选择一种类型来发起随机接入；
或者，
响应于所述常规BSR为多个，且多个所述常规BSR触发的随机接入的类型不同，从多个所述常规BSR中选择优先级最高的逻辑信道所触发的常规BSR，并以所选择的常规BSR触发的随机接入类型来发起随机接入。
可选的，在本申请第一方面实施例又一种可能的实现方式中，通过媒体访问控制层控制元素MAC CE或者物理下行控制信道PDCCH对用户设备的网络配置进行激活处理或者去激活处理。
可选的，在本申请第一方面实施例又一种可能的实现方式中，所述触发2-STEP随机接入，包括：
响应于所述触发源为调度请求SR，基于未存在调度请求资源，触发2-STEP随机接入以获取可用上行资源。
可选的，在本申请第一方面实施例又一种可能的实现方式中，所述基于未存在调度请求资源，触发2-STEP随机接入以获取可用上行资源，包括：
基于未存在所述调度请求资源，获取所述SR的触发源；
响应于所述SR的触发源为网络侧配置了2-STEP随机接入的逻辑信道所触发的常规缓存状态报告BSR、或者网络侧配置了使用UL重传被禁用的混合自动重传请求HARQ的逻辑信道所触发的常规BSR、或者辅助小区波束失败恢复BFR，触发2-STEP随机接入以请 求所述可用上行资源。
可选的，在本申请第一方面实施例又一种可能的实现方式中，所述基于未存在调度请求资源，触发2-STEP随机接入以获取可用上行资源，包括：
基于未存在所述调度请求资源，获取用户设备的网络配置；
响应于所述网络配置包括允许所述SR触发2-STEP随机接入，触发2-STEP随机接入以获取所述可用上行资源。
可选的，在本申请第一方面实施例又一种可能的实现方式中，通过媒体访问控制层控制元素MAC CE或者物理下行控制信道PDCCH对用户设备的网络配置进行激活处理或者去激活处理。
可选的，在本申请第一方面实施例又一种可能的实现方式中，所述触发2-STEP随机接入，包括：
响应于所述触发源为小数据包传输，获取触发小数据包传输的数据承载DRB；
响应于用户设备的网络配置包括所述DRB或者所述DRB对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输所述小数据包。
可选的，在本申请第一方面实施例又一种可能的实现方式中，所述响应于用户设备的网络配置包括所述DRB或者所述DRB对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输所述小数据包，包括：
响应于触发所述小数据包传输的DRB为多个，获取优先级最高的DRB；
响应于所述用户设备的所述网络配置包括所述优先级最高的DRB或者所述优先级最高的DRB对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输所述小数据包。
可选的，在本申请第一方面实施例又一种可能的实现方式中，所述触发2-STEP随机接入，包括：
响应于所述触发源为小数据包传输，获取用户设备的网络配置；
响应于所述网络配置包括允许所述用户设备在非激活态下触发2-STEP随机接入，触发2-STEP随机接入以传输所述小数据包。
可选的，在本申请第一方面实施例又一种可能的实现方式中，所述方法还包括：
获取用户设备选择发起随机接入的带宽部分BWP；
响应于所述BWP配置有2-STEP随机接入资源，发起2-STEP随机接入。
可选的，在本申请第一方面实施例又一种可能的实现方式中，所述方法还包括：
获取用户设备选择发起随机接入的带宽部分BWP；
响应于所述BWP未配置有2-STEP随机接入资源，发起4-STEP随机接入。
可选的，在本申请第一方面实施例又一种可能的实现方式中，所述响应于所述BWP配置有2-STEP随机接入资源，发起2-STEP随机接入，包括：
响应于所述BWP配置有2-STEP随机接入资源，获取所述BWP的下行路损参考的参 考信号接收功率RSRP；
获取触发2-STEP随机接入的触发源对应的RSRP阈值；
响应于所述RSRP大于或者等于所述RSRP阈值，发起2-STEP随机接入。
本申请第二方面实施例提出的随机接入方法，包括：接收用户设备发送的2-STEP随机接入请求；
其中，所述2-STEP随机接入请求为所述用户设备基于触发源发起的。
可选的，在本申请第二方面实施例一种可能的实现方式中，所述2-STEP随机接入请求为：
所述用户设备响应于所述触发源为辅助小区波束失败恢复BFR且未存在可用上行资源，而发送的用于请求所述可用上行资源的2-STEP随机接入请求。
可选的，在本申请第二方面实施例另一种可能的实现方式中，所述可用上行资源包括以下的至少一种：
用于发送BFR媒体访问控制层控制元素MAC CE的可用上行资源；
用于发送截断BFR MAC CE的可用上行资源；
对应的混合自动重传请求HARQ的UL重传没有被禁用的可用上行资源。
可选的，在本申请第二方面实施例再一种可能的实现方式中，所述2-STEP随机接入请求为所述用户设备发送的用于恢复波束的2-STEP随机接入请求；
其中，所述用户设备响应于所述触发源为主小区波束失败恢复BFR和/或主辅小区波束失败恢复BFR，获取所述用户设备的网络配置；且所述用户设备响应于所述网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，发送2-STEP随机接入请求以恢复波束。
可选的，在本申请第二方面实施例又一种可能的实现方式中，所述用户设备发送的所述2-STEP随机接入请求为：
所述用户设备响应于所述网络配置包括用于BFR的非竞争的随机接入资源，获取用于BFR的非竞争的随机接入资源的类型；并根据非竞争的随机接入资源的类型发送的用于恢复波束的2-STEP随机接入请求。
可选的，在本申请第二方面实施例又一种可能的实现方式中，所述用户设备发送的所述2-STEP随机接入请求为：
所述用户设备响应于所述网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，且所述网络配置包括用于BFR的非竞争的随机接入资源，获取用于BFR的非竞争的随机接入资源的类型；并根据非竞争的随机接入资源的类型发送的用于恢复波束的2-STEP随机接入请求。
可选的，在本申请第二方面实施例又一种可能的实现方式中，所述2-STEP随机接入请求为所述用户设备发送的用于请求可用上行资源的2-STEP随机接入请求；
其中，所述用户设备响应于所述触发源为常规缓存状态报告BSR，且未存在所述可用上行资源或者存在的所述可用上行资源未满足触发所述BSR的逻辑信道的LCP mapping限 制，触发2-STEP随机接入以请求所述可用上行资源。
可选的，在本申请第二方面实施例又一种可能的实现方式中，触发所述常规BSR包括以下的至少一种：
网络侧配置了2-STEP随机接入的逻辑信道；
网络侧配置了禁用UL重传的混合自动重传请求HARQ的逻辑信道；
网络侧配置了低时延的逻辑信道；其中，所述逻辑信道为业务信道和/或控制信道；
网络侧配置了允许用户设备使用2-STEP随机接入。
可选的，在本申请第二方面实施例又一种可能的实现方式中，所述用户设备响应于所述常规BSR为多个，且多个所述常规BSR触发的随机接入的类型不同，从多个类型中选择一种类型来发起随机接入；或者，
所述用户设备响应于所述常规BSR为多个，且多个所述常规BSR触发的随机接入的类型不同，从多个所述常规BSR中选择优先级最高的逻辑信道所触发的常规BSR，并以所选择的常规BSR触发的随机接入类型来发起随机接入。
可选的，在本申请第二方面实施例又一种可能的实现方式中，通过媒体访问控制层控制元素MAC CE或者物理下行控制信道PDCCH对用户设备的网络配置进行激活处理或者去激活处理。
可选的，在本申请第二方面实施例又一种可能的实现方式中，所述2-STEP随机接入请求为：
所述用户设备响应于所述触发源为调度请求SR且未存在调度请求资源，而发送的用于请求可用上行资源的2-STEP随机接入请求。
可选的，在本申请第二方面实施例又一种可能的实现方式中，所述用户设备响应于所述触发源为调度请求SR且未存在调度请求资源，获取所述SR的触发源；且所述用户设备响应于所述SR的触发源为网络侧配置了2-STEP随机接入的逻辑信道所触发的常规缓存状态报告BSR、或者网络侧配置了使用UL重传被禁用的混合自动重传请求HARQ的逻辑信道所触发的常规BSR、或者辅助小区波束失败恢复BFR，触发2-STEP随机接入以请求所述可用上行资源。
可选的，在本申请第二方面实施例又一种可能的实现方式中，所述用户设备响应于未存在所述调度请求资源，获取用户设备的网络配置；且所述用户设备响应于所述网络配置包括允许所述SR触发2-STEP随机接入，触发2-STEP随机接入以获取所述可用上行资源。
可选的，在本申请第二方面实施例又一种可能的实现方式中，通过媒体访问控制层控制元素MAC CE或者物理下行控制信道PDCCH对用户设备的网络配置进行激活处理或者去激活处理。
可选的，在本申请第二方面实施例又一种可能的实现方式中，所述2-STEP随机接入请求为所述用户设备发送的用于传输小数据包的2-STEP随机接入请求；
其中，所述用户设备响应于所述触发源为小数据包传输，获取触发小数据包传输的数据承载DRB；且所述用户设备响应于所述用户设备的网络配置包括所述DRB或者所述DRB 对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输所述小数据包。
可选的，在本申请第二方面实施例又一种可能的实现方式中，所述用户设备响应于触发所述小数据包传输的DRB为多个，获取优先级最高的DRB；且所述用户设备响应于所述网络配置包括所述优先级最高的DRB或者所述优先级最高的DRB对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输所述小数据包。
可选的，在本申请第二方面实施例又一种可能的实现方式中，所述2-STEP随机接入请求为：
所述用户设备响应于所述触发源为小数据包传输且所述用户设备的网络配置中包括允许所述用户设备在非激活态下触发2-STEP随机接入，而发送的用于传输小数据包的2-STEP随机接入请求。
可选的，在本申请第二方面实施例又一种可能的实现方式中，所述2-STEP随机接入请求为：
所述用户设备响应于选择发起随机接入的带宽部分BWP配置有2-STEP随机接入资源而发起的2-STEP随机接入请求。
可选的，在本申请第二方面实施例又一种可能的实现方式中，所述方法还包括：
接收所述用户设备发起的4-STEP随机接入请求；
其中，所述4-STEP随机接入请求为，用户设备响应于选择发起随机接入的带宽部分BWP未配置有2-STEP随机接入资源而发起的4-STEP随机接入请求。
可选的，在本申请第二方面实施例又一种可能的实现方式中，所述用户设备响应于所述BWP配置有2-STEP随机接入资源，获取所述BWP的下行路损参考的参考信号接收功率RSRP；且所述用户设备获取触发2-STEP随机接入的触发源对应的RSRP阈值；且所述用户设备响应于所述RSRP大于或者等于所述RSRP阈值，发起2-STEP随机接入。
本申请第三方面实施例提出的随机接入装置，包括：确定模块，被配置为确定2-STEP随机接入的触发源；
触发模块，被配置为响应于所述2-STEP随机接入的所述触发源，触发2-STEP随机接入。
本申请第四方面实施例提出的随机接入装置，包括：接收模块，被配置为接收用户设备发送的2-STEP随机接入请求；
其中，所述2-STEP随机接入请求为所述用户设备基于触发源发起的。
本申请第五方面实施例提出的电子设备，包括：
至少一个处理器；以及
与所述至少一个处理器通信连接的存储器；其中，
所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行本申请第一方面实施例所述的随机接入方法， 或者，第二方面实施例所述的随机接入方法。
本申请第六方面实施例提出的存储有计算机指令的非瞬时计算机可读存储介质，所述计算机指令用于使所述计算机执行本申请第一方面实施例所述的随机接入方法，或者，第二方面实施例所述的随机接入方法。
本申请提供的实施例，至少具有如下有益技术效果：
根据本申请实施例的随机接入方法，可以通过确定2-STEP随机接入的触发源；根据2-STEP随机接入的触发源，相应的触发2-STEP随机接入。由此，能够针对2-STEP随机接入的触发源，触发2-STEP随机接入，减少交互步数，减少接入时延。
本申请附加的方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
本申请上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：
图1是本申请实施例提供的一种随机接入方法的示意图；
图2是本申请实施例提供的另一种随机接入方法的示意图；
图3是本申请实施例提供的另一种随机接入方法的示意图；
图4是本申请实施例提供的另一种随机接入方法的示意图；
图5是本申请实施例提供的另一种随机接入方法的示意图；
图6是本申请实施例提供的另一种随机接入方法的示意图；
图7是本申请实施例提供的另一种随机接入方法的示意图；
图8是本申请实施例提供的另一种随机接入方法的示意图；
图9是本申请实施例提供的另一种随机接入方法的示意图；
图10是本申请实施例提供的另一种随机接入方法的示意图；
图11是本申请实施例提供的另一种随机接入方法的示意图；
图12是本申请实施例提供的另一种随机接入方法的示意图；
图13是本申请实施例提供的另一种随机接入方法的示意图；
图14是本申请实施例提供的一种随机接入装置的结构示意图；
图15是本申请实施例提供的另一种随机接入装置的结构示意图；
图16是本申请实施例提供的另一种随机接入装置的结构示意图；
图17是本申请实施例提供的另一种随机接入装置的结构示意图；
图18是本申请实施例提供的另一种随机接入装置的结构示意图；
图19是本申请实施例提供的另一种随机接入装置的结构示意图；
图20是本申请实施例提供的另一种随机接入装置的结构示意图；
图21是本申请实施例提供的另一种随机接入装置的结构示意图；
图22为本申请实施例提供的一种电子设备的示意图。
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申请实施例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、本申请实施例的一些方面相一致的装置和方法的例子。
在本申请实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本申请实施例。在本申请实施例和所附权利要求书中所使用的单数形式的“一种”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”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本申请实施例可能采用术语第一、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，在不脱离本申请实施例范围的情况下，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”及“若”可以被解释成为“在……时”或“当……时”或“响应于确定”。
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的要素。下面通过参考附图描述的实施例是示例性的，旨在用于解释本申请，而不能理解为对本申请的限制。
相关技术中，对于NTN，通过4-STEP随机接入RA的方式进行随机接入，交互步数多，接入时延过大。
针对这一问题，本申请实施例提供了随机接入方法、装置和电子设备。
图1是根据本申请提出的一种随机接入方法的示意图。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。
如图1所示，本申请提出的随机接入方法，包括如下步骤：
S101、确定2-STEP随机接入的触发源。
本申请中，2-STEP随机接入的触发源例如，波束失败恢复(Beam Failure Recovery，BFR)、缓存状态报告(Buffer Status Report，BSR)、调度请求(Scheduling Request，SR)、小数据包传输等。其中，波束失败恢复BFR、缓存状态报告BSR和调度请求SR，为处于连接态的用户设备(User Equipment，UE)触发的；小数据包传输，为处于非激活态(inactive)的用户设备触发的。
本申请中，波束失败恢复BFR指的是，针对处于连接态的用户设备的一个服务小区，用户设备根据网络配置，会对与服务小区对应的基站通信所采用的一组波束的信号质量进行监测；如果当前监测的波束信号质量不满足一定要求，用户设备的物理层会向媒体访问控制MAC层指示波束失败(beam failure)；在物理层指示MAC层波束失败达到一定次数时，MAC层会触发波束失败恢复流程BFR，用户设备会根据网络配置监测新的一组波束。其中，服务小区例如，主小区(Primary Cell，PCell)、主辅小 区(Primary Secondary Cell，PSCell)和辅助小区(Secondary Cell，SCell)。
本申请中，缓存状态报告BSR指的是，针对处于连接态的用户设备，用户设备需要上报缓存状态报告BSR时，触发缓存状态报告BSR。小数据包传输指的是，针对处于非激活态的用户设备，当需要进行小数据包传输时，触发小数据包传输。
本申请中提到的基站，可以指透传模式下的基站，或者指再生模式下的卫星。在透传模式下，NTN地面站将基站gNB的信号发送给卫星，卫星将信号转换到卫星频段后，再通过卫星频段下发给用户设备，除了频率转换与信号放大，卫星不对gNB的信号进行解调。在再生模式下，NTN地面站将基站gNB的信号发送给卫星后，卫星对信号进行解调译码后再重新编码调制，这个过程就是再生，并通过卫星频段发送再生的信号。
S102、根据2-STEP随机接入的触发源，相应的触发2-STEP随机接入。
本申请中，随机接入分为两种：4-STEP随机接入和2-STEP随机接入。4-STEP随机接入包括4步。第1步：用户设备向基站发送Random Access Preamble；第2步：基站向用户设备返回Random Access Response；第3步：用户设备向基站发送Scheduled Transmission；第4步，基站向用户设备返回Contention Resolution。2-STEP随机接入包括2步。第1步为MsgA，该步相当于4-STEP随机接入的第1步+第3步；第2步为MsgB，该步相当于4-STEP随机接入的第2步+第4步。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：响应于触发2-STEP随机接入的触发源为波束失败恢复BFR，获取该触发源对应的RSRP阈值，将BWP的下行路损参考的RSRP与该RSRP阈值进行比对，在BWP的下行路损参考的RSRP大于或者等于该RSRP阈值时，发起2-STEP随机接入。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：响应于触发2-STEP随机接入的触发源为缓存状态报告BSR，获取该触发源对应的RSRP阈值，将BWP的下行路损参考的RSRP与该RSRP阈值进行比对，在BWP的下行路损参考的RSRP大于或者等于该RSRP阈值时，发起2-STEP随机接入。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：响应于触发2-STEP随机接入的触发源为调度请求SR，获取该触发源对应的RSRP阈值，将BWP的下行路损参考的RSRP与该RSRP阈值进行比对，在BWP的下行路损参考的RSRP大于或者等于该RSRP阈值时，发起2-STEP随机接入。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：响应于触发2-STEP随机接入的触发源为小数据包传输，获取该触发源对应的RSRP阈值，将BWP的下行路损参考的RSRP与该RSRP阈值进行比对，在BWP的下行路损参考的RSRP大于或者等于该RSRP阈值时，发起2-STEP随机接入。
本申请中，当用户设备触发了波束失败恢复BFR时，可以触发2-STEP随机接入，以尽快接入基站，实现波束恢复；当用户设备触发了缓存状态报告BSR时，可以触发2-STEP随机接入，以尽快接入基站，实现缓存状态报告的发送；当用户设备触发了调度请求SR时，可以触发2-STEP随机接入，以尽快接入基站，实现调度请求的发送；当用户设备触发了小数据包传输时，可以触发2-STEP随机接入，以尽快接入基站，实现小数据包的传输。
根据本申请实施例的随机接入方法，可以通过确定2-STEP随机接入的触发源；根据2-STEP随机接入的触发源，相应的触发2-STEP随机接入，由此，能够针对2-STEP随机接入的触发源，触发2-STEP随机接入，减少交互步数，减少接入时延。
作为一种可能的实现方式，如图2所示，本申请提出的随机接入方法，包括如下步骤：
S201、确定2-STEP随机接入的触发源。
本申请中，2-STEP随机接入的触发源例如，波束失败恢复(Beam Failure Recovery，BFR)、缓存状态报告(Buffer Status Report，BSR)、调度请求(Scheduling Request，SR)、小数据包传输等。其中，波束失败恢复BFR、缓存状态报告BSR和调度请求SR，为处于连接态的用户设备(User Equipment，UE)触发的；小数据包传输，为处于非激活态(inactive)的用户设备触发的。
S202、响应于触发源为辅助小区波束失败恢复BFR，基于未存在可用上行资源，触发2-STEP随机接入以请求可用上行资源。
本申请中，可用上行资源可以包括以下的至少一种：用于发送BFR媒体访问控制层控制元素MAC CE的可用上行资源；用于发送截断BFR MAC CE的可用上行资源；对应的混合自动重传请求HARQ的UL重传没有被禁用的可用上行资源。
本申请中，混合自动重传请求HARQ，指的是用户设备向基站发送上行传输后，基站接收该上行传输并进行解调，根据解调结果来决定是否调度重传。由于NTN的往返时间RTT很长，这种重传机制会导致数据或者指令经过很长时间才能重传成功，因此，需要对一些HARQ禁用HARQ功能，也就是说，禁用UL重传功能。用户设备的网络配置中包括BFR MAC CE不能使用UL重传被禁用的HARQ，因此，在发送BFR MAC CE时，若未存在对应的混合自动重传请求HARQ的UL重传没有被禁用的可用上行资源，且未存在用于发送BFR媒体访问控制层控制元素MAC CE或者用于发送截断BFR MAC CE的可用上行资源，需要触发2-STEP随机接入以请求可用上行资源。
本申请中，用户设备的网络配置中还可以包括以下MAC CE中的一个或者多个不能使用UL重传被禁用的HARQ：配置授权确认(Configured Grant Confirmation)MAC CE、Multiple Entry Configured Grant Confirmation MAC CE、功率余量报告(Power Headroom Report，PHR)MAC CE、BSR MAC CE。针对上述MAC CE，不能通过对应的HARQ的UL重传被禁用的可用上行资源来发送上述MAC CE，需要通过对应的HARQ的UL重传没有被禁用的可用上行资源来发送上述MAC CE。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：用户设备触发随机接入后，可以选择发起随机接入的带宽部分(Bandwidth Part，BWP)；响应于BWP配置有2-STEP随机接入资源，发起2-STEP随机接入；或者，响应于BWP未配置有2-STEP随机接入资源，发起4-STEP随机接入。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：用户设备触发随机接入后，可以选择发起随机接入的带宽部分(Bandwidth Part，BWP)；响应于BWP配置有2-STEP随机接入资源，发起2-STEP随机接入。在BWP配置有2-STEP随机接入资源时，用户设备可以先获取BWP的下行路损参考的参考信号接收功率RSRP；并获取触发2-STEP随机接入的触发源对应的RSRP阈值；其中，不同触发源对应不同的RSRP阈值；在RSRP大于或者等于RSRP阈值时，发起2-STEP随机接入；在RSRP小于RSRP阈值时，发起4-STEP随机接入。其中，此处的RSRP阈值不同于msgA-RSRP-Threshold。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：用户设备触发随机接入后，可以选择发起非竞争性的随机接入或者竞争性的随机接入。其中，选择发起哪种随机接入，取决于是否有专门用于辅助小区BFR的随机接入资源。如果有，就发起非竞争的随机接入；否则，发起竞争的随机接入。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：用户设备触发随机接入后，可以选择发起随机接入的带宽部分(Bandwidth Part，BWP)；在BWP配置有2-STEP随机接入资源时，发起2-STEP随机接入；或者，在BWP未配置有2-STEP随机接入资源时，发起4-STEP随机接入。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：用户设备触发随机接入后，可以选择发起随机接入的带宽部分(Bandwidth Part，BWP)；在BWP配置有2-STEP随机接入资源时，发起2-STEP随机接入。在BWP配置有2-STEP随机接入资源时，用户设备可以先获取BWP的下行路损参考的参考信号接收功率RSRP；并获取触发2-STEP随机接入的辅助小区BFR对应的RSRP阈值；在RSRP大于或者等于RSRP阈值时，发起2-STEP随机接入；在RSRP小于RSRP阈值时，发起4-STEP随机接入。其中，此处的RSRP阈值不同于msgA-RSRP-Threshold。
根据本申请实施例的随机接入方法，可以通过确定2-STEP随机接入的触发源；响应于触发源为辅助小区波束失败恢复BFR，基于未存在可用上行资源，触发2-STEP随机接入以请求可用上行资源，由此，能够在辅助小区BFR被触发时，触发2-STEP 随机接入来发送BFR MAC CE，从而减少接入时延，提高波束恢复速度。
作为另一种可能的实现方式，如图3所示，本申请提出的随机接入方法，包括如下步骤：
S301、确定2-STEP随机接入的触发源。
本申请中，2-STEP随机接入的触发源例如，波束失败恢复(Beam Failure Recovery，BFR)、缓存状态报告(Buffer Status Report，BSR)、调度请求(Scheduling Request，SR)、小数据包传输等。其中，波束失败恢复BFR、缓存状态报告BSR和调度请求SR，为处于连接态的用户设备(User Equipment，UE)触发的；小数据包传输，为处于非激活态(inactive)的用户设备触发的。
S302、响应于触发源为辅助小区波束失败恢复BFR，基于存在可用上行资源，通过可用上行资源实现波束恢复。
本申请中，可用上行资源可以包括以下的至少一种：用于发送BFR媒体访问控制层控制元素MAC CE的可用上行资源；用于发送截断BFR MAC CE的可用上行资源；对应的混合自动重传请求HARQ的UL重传没有被禁用的可用上行资源。
本申请中，基于存在可用上行资源，用户设备可以直接通过可用上行资源发送BFR MAC CE或者截断BFR MAC CE，进而监测新的一组波束，实现波束恢复。
根据本申请实施例的随机接入方法，可以通过确定2-STEP随机接入的触发源；响应于触发源为辅助小区波束失败恢复BFR，基于存在可用上行资源，通过可用上行资源实现波束恢复。由此，提高波束恢复速度。
作为另一种可能的实现方式，如图4所示，本申请提出的随机接入方法，包括如下步骤：
S401、确定2-STEP随机接入的触发源。
本申请中，2-STEP随机接入的触发源例如，波束失败恢复(Beam Failure Recovery，BFR)、缓存状态报告(Buffer Status Report，BSR)、调度请求(Scheduling Request，SR)、小数据包传输等。其中，波束失败恢复BFR、缓存状态报告BSR和调度请求SR，为处于连接态的用户设备(User Equipment，UE)触发的；小数据包传输，为处于非激活态(inactive)的用户设备触发的。
S402、响应于触发源为主小区波束失败恢复BFR和/或主辅小区波束失败恢复BFR，获取用户设备的网络配置。
本申请中，用户设备的网络配置可以包括以下的一种或者多种：允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入、用于BFR的非竞争的随机接入资源等。
S403、响应于网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，触发2-STEP随机接入以恢复波束。
本申请中，基于用户设备网络配置中包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，而未包括用于BFR的非竞争的随机接入资源时，用户设备只能发起竞争性的随机接入。
根据本申请实施例的随机接入方法，可以通过确定2-STEP随机接入的触发源；响应于触发源为主小区波束失败恢复BFR和/或主辅小区波束失败恢复BFR，获取用户设备的网络配置；响应于网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，触发2-STEP随机接入以恢复波束，由此，能够在主小区BFR被触发时和/或主辅小区BFR被触发时，触发2-STEP随机接入来恢复波束，从而减少接入时延，提高波束恢复速度。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：响应于用户设备发起竞争性的随机接入，获取发起随机接入的带宽部分(Bandwidth Part，BWP)；在BWP配置有2-STEP随机接入资源时，发起2-STEP随机接入以恢复波束；或者，在BWP未配置有2-STEP随机接入资源时，发起4-STEP随机接入以恢复波束。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：响应于用户设备发起竞争性的随机接入，获取发起随机接入的带宽部分(Bandwidth Part，BWP)；在BWP配置有2-STEP随机接入资源时，发起2-STEP随机接入以恢复波束。在BWP配置有2-STEP随机接入资源时，用户设备可以先获取BWP的下行路损参考的参考信号接收功率RSRP；并获取触发2-STEP随机接入的辅助小区BFR对应的RSRP阈值；在RSRP大于或者等于RSRP阈值时，发起2-STEP随机接入；在RSRP小于RSRP阈值时，发起4-STEP随机接入。其中，此处的RSRP阈值不同于msgA-RSRP-Threshold。
作为另一种可能的实现方式，如图5所示，本申请提出的随机接入方法，包括如下步骤：
S501、确定2-STEP随机接入的触发源。
本申请中，2-STEP随机接入的触发源例如，波束失败恢复(Beam Failure Recovery，BFR)、缓存状态报告(Buffer Status Report，BSR)、调度请求(Scheduling Request，SR)、小数据包传输等。其中，波束失败恢复BFR、缓存状态报告BSR和调度请求SR，为处于连接态的用户设备(User Equipment，UE)触发的；小数据包传输，为处于非激活态(inactive)的用户设备触发的。
S502、响应于触发源为主小区波束失败恢复BFR和/或主辅小区波束失败恢复BFR，获取用户设备的网络配置。
本申请中，用户设备的网络配置可以包括以下的一种或者多种：允许主小区BFR 被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入、用于BFR的非竞争的随机接入资源等。
S503、响应于网络配置包括用于BFR的非竞争的随机接入资源，获取用于BFR的非竞争的随机接入资源的类型。
S504、根据非竞争的随机接入资源的类型触发2-STEP随机接入以恢复波束。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：基于用户设备网络配置中包括用于BFR的非竞争的随机接入资源时，用户设备能够发起非竞争性的随机接入，并根据用于BFR的非竞争的随机接入资源的类型，来确定触发的随机接入的类型。例如，在用于BFR的非竞争的随机接入资源的类型为2-STEP时，触发2-STEP随机接入以恢复波束；或者，在用于BFR的非竞争的随机接入资源的类型为4-STEP时，触发4-STEP随机接入以恢复波束。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：响应于用于BFR的非竞争的随机接入资源的类型为2-STEP，用户设备还可以在非竞争的随机接入资源中选择发起随机接入的带宽部分(Bandwidth Part，BWP)，获取BWP的下行路损参考的参考信号接收功率RSRP；并获取触发2-STEP随机接入的主小区BFR和/或主辅小区BFR对应的RSRP阈值；在RSRP大于或者等于RSRP阈值时，发起2-STEP随机接入；在RSRP小于RSRP阈值时，发起4-STEP随机接入。其中，此处的RSRP阈值不同于msgA-RSRP-Threshold。
根据本申请实施例的随机接入方法，可以通过确定2-STEP随机接入的触发源；响应于触发源为主小区波束失败恢复BFR和/或主辅小区波束失败恢复BFR，获取用户设备的网络配置；响应于网络配置包括用于BFR的非竞争的随机接入资源，获取用于BFR的非竞争的随机接入资源的类型；根据非竞争的随机接入资源的类型触发2-STEP随机接入以恢复波束，由此，能够在主小区BFR被触发时和/或主辅小区BFR被触发时，触发2-STEP随机接入来恢复波束，从而减少接入时延，提高波束恢复速度。
作为另一种可能的实现方式，如图6所示，本申请提出的随机接入方法，包括如下步骤：
S601、确定2-STEP随机接入的触发源。
本申请中，2-STEP随机接入的触发源例如，波束失败恢复(Beam Failure Recovery，BFR)、缓存状态报告(Buffer Status Report，BSR)、调度请求(Scheduling Request，SR)、小数据包传输等。其中，波束失败恢复BFR、缓存状态报告BSR和调度请求SR，为处于连接态的用户设备(User Equipment，UE)触发的；小数据包传输，为处于非激活态(inactive)的用户设备触发的。
S602、响应于触发源为主小区波束失败恢复BFR和/或主辅小区波束失败恢复BFR，获取用户设备的网络配置。
本申请中，用户设备的网络配置可以包括以下的一种或者多种：允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入、用于BFR的非竞争的随机接入资源等。
S603、响应于网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，且网络配置包括用于BFR的非竞争的随机接入资源，获取用于BFR的非竞争的随机接入资源的类型。
S604、根据非竞争的随机接入资源的类型触发2-STEP随机接入以恢复波束。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：用户设备能够发起非竞争性的随机接入时，根据用于BFR的非竞争的随机接入资源的类型，来确定触发的随机接入的类型。例如，在用于BFR的非竞争的随机接入资源的类型为2-STEP时，触发2-STEP随机接入以恢复波束；或者，在用于BFR的非竞争的随机接入资源的类型为4-STEP时，触发4-STEP随机接入以恢复波束。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：响应于用于BFR的非竞争的随机接入资源的类型为2-STEP，用户设备还可以在非竞争的随机接入资源中选择发起随机接入的带宽部分(Bandwidth Part，BWP)，获取BWP的下行路损参考的参考信号接收功率RSRP；并获取触发2-STEP随机接入的主小区BFR和/或主辅小区BFR对应的RSRP阈值；在RSRP大于或者等于RSRP阈值时，发起2-STEP随机接入；在RSRP小于RSRP阈值时，发起4-STEP随机接入。其中，此处的RSRP阈值不同于msgA-RSRP-Threshold。
根据本申请实施例的随机接入方法，可以通过确定2-STEP随机接入的触发源；响应于触发源为主小区波束失败恢复BFR和/或主辅小区波束失败恢复BFR，获取用户设备的网络配置；响应于网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，且网络配置包括用于BFR的非竞争的随机接入资源，获取用于BFR的非竞争的随机接入资源的类型；根据非竞争的随机接入资源的类型触发2-STEP随机接入以恢复波束，由此，能够在主小区BFR被触发时和/或主辅小区BFR被触发时，触发2-STEP随机接入来恢复波束，从而减少接入时延，提高波束恢复速度。
作为另一种可能的实现方式，如图7所示，本申请提出的随机接入方法，包括如下步骤：
S701、确定2-STEP随机接入的触发源。
本申请中，2-STEP随机接入的触发源例如，波束失败恢复(Beam Failure Recovery，BFR)、缓存状态报告(Buffer Status Report，BSR)、调度请求(Scheduling Request，SR)、小数据包传输等。其中，波束失败恢复BFR、缓存状态报告BSR和调度请求SR，为处于连接态的用户设备(User Equipment，UE)触发的；小数据包传输，为处于非激活态(inactive)的用户设备触发的。
S702、响应于触发源为常规缓存状态报告BSR，基于未存在可用上行资源或者存在的可用上行资源未满足触发BSR的逻辑信道的LCP mapping限制，触发2-STEP随机接入以请求可用上行资源。
本申请中，触发常规缓存状态报告BSR的条件有两个，该两个条件满足一个就可以。第一个条件为，有新数据到达，该新数据需要在第一优先级的逻辑信道上传输，但用户设备现有的包含可传输数据的逻辑信道的优先级低于第一优先级。第二个条件为，有新数据到达，但用户设备没有包含可传输数据的逻辑信道。其中，用于传输常规BSR的可用上行资源例如可以为上行共享信道(UL-SCH)资源。
本申请中，触发常规BSR包括以下的至少一种：网络侧配置了2-STEP随机接入的逻辑信道；网络侧配置了禁用UL重传的混合自动重传请求HARQ的逻辑信道；网络侧配置了低时延的逻辑信道；其中，所述逻辑信道为业务信道和/或控制信道；网络侧配置了允许用户设备使用2-STEP随机接入。
本申请中，在第一种场景中，响应于触发源为常规BSR，且常规BSR由网络侧配置了2-STEP随机接入的逻辑信道所触发、网络侧配置了禁用UL重传的混合自动重传请求HARQ的逻辑信道所触发、网络侧配置了低时延的逻辑信道所触发，基于未存在可用上行资源或者存在的可用上行资源未满足触发BSR的逻辑信道的LCP mapping限制，触发2-STEP随机接入以请求可用上行资源。
在第二种场景中，响应于触发源为常规BSR，且网络侧配置了允许用户设备使用2-STEP随机接入，基于未存在可用上行资源或者存在的可用上行资源未满足触发BSR的逻辑信道的LCP mapping限制，触发2-STEP随机接入以请求可用上行资源。其中，逻辑信道为业务信道和/或控制信道。
本申请中，在触发2-STEP随机接入之后，若常规BSR为多个且多个常规BSR触发的随机接入的类型不一致，则在第一种情况下，可以从多个类型中选择一种类型来发起随机接入；或者，在第二种情况下，从多个常规BSR中选择优先级最高的逻辑信道所触发的常规BSR，并以所选择的常规BSR触发的随机接入的类型来发起随机接入。其中，两种情况可以根据实际需要进行选择。
其中，可以通过媒体访问控制层控制元素MAC CE或者物理下行控制信道PDCCH对用户设备的网络配置进行激活处理或者去激活处理。也就是说，可以通过MAC CE或者PDCCH对用户设备的网络配置进行激活处理，从而结合网络配置来确定是否触发2-STEP随机接入；也可以通过MAC CE或者PDCCH对用户设备的网络配置进行去激活处理，从而避免结合网络配置来确定是否触发2-STEP随机接入。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：用户设备触发2-STEP随机接入后，可以选择发起非竞争性的随机接入或者竞争性的随机接入。选择发起哪种随机接入后，还可以选择发起随机接入的带宽部分(Bandwidth Part，BWP)；在BWP配置有2-STEP随机接入资源时，发起 2-STEP随机接入；或者，在BWP未配置有2-STEP随机接入资源时，发起4-STEP随机接入。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：用户设备触发2-STEP随机接入后，可以选择发起非竞争性的随机接入或者竞争性的随机接入。选择发起哪种随机接入后，还可以选择发起随机接入的带宽部分(Bandwidth Part，BWP)；在BWP配置有2-STEP随机接入资源时，发起2-STEP随机接入。在BWP配置有2-STEP随机接入资源时，用户设备可以先获取BWP的下行路损参考的参考信号接收功率RSRP；并获取触发2-STEP随机接入的常规BSR对应的RSRP阈值；在RSRP大于或者等于RSRP阈值，发起2-STEP随机接入；在RSRP小于RSRP阈值时，发起4-STEP随机接入。其中，此处的RSRP阈值不同于msgA-RSRP-Threshold。
根据本申请实施例的随机接入方法，可以通过确定2-STEP随机接入的触发源；响应于触发源为常规缓存状态报告BSR，基于未存在可用上行资源或者存在的可用上行资源未满足触发BSR的逻辑信道的LCP mapping限制，触发2-STEP随机接入以请求可用上行资源，由此，能够在常规缓存状态报告BSR被触发时，触发2-STEP随机接入来发送常规BSR，从而减少接入时延，提高常规BSR发送速度。
作为另一种可能的实现方式，如图8所示，本申请提出的随机接入方法，包括如下步骤：
S801、确定2-STEP随机接入的触发源。
本申请中，2-STEP随机接入的触发源例如，波束失败恢复(Beam Failure Recovery，BFR)、缓存状态报告(Buffer Status Report，BSR)、调度请求(Scheduling Request，SR)、小数据包传输等。其中，波束失败恢复BFR、缓存状态报告BSR和调度请求SR，为处于连接态的用户设备(User Equipment，UE)触发的；小数据包传输，为处于非激活态(inactive)的用户设备触发的。
S802、响应于触发源为常规缓存状态报告BSR，基于存在可用上行资源，且存在的可用上行资源满足触发BSR的逻辑信道的LCP mapping限制，通过可用上行资源发送常规BSR。
本申请中，基于存在可用上行资源，且存在的可用上行资源满足触发BSR的逻辑信道的LCP mapping限制，用户设备可以直接通过可用上行资源发送常规BSR，实现常规BSR的快速发送。
根据本申请实施例的随机接入方法，可以通过确定2-STEP随机接入的触发源；响应于触发源为常规缓存状态报告BSR，基于存在可用上行资源，且存在的可用上行资源满足触发BSR的逻辑信道的LCP mapping限制，通过可用上行资源发送常规BSR，由此，提高常规BSR发送速度。
作为另一种可能的实现方式，如图9所示，本申请提出的随机接入方法，包括如下步 骤：
S901、确定2-STEP随机接入的触发源。
本申请中，2-STEP随机接入的触发源例如，波束失败恢复(Beam Failure Recovery，BFR)、缓存状态报告(Buffer Status Report，BSR)、调度请求(Scheduling Request，SR)、小数据包传输等。其中，波束失败恢复BFR、缓存状态报告BSR和调度请求SR，为处于连接态的用户设备(User Equipment，UE)触发的；小数据包传输，为处于非激活态(inactive)的用户设备触发的。
S902、响应于触发源为调度请求SR，基于未存在调度请求资源，触发2-STEP随机接入以获取可用上行资源。
本申请中，触发调度请求SR的触发源例如可以为，常规缓存状态报告BSR或者波束失败恢复BFR等。
本申请中，基于未存在调度请求资源，用户设备可以获取SR的触发源；响应于SR的触发源为网络侧配置了2-STEP随机接入的逻辑信道所触发的常规缓存状态报告BSR、或者网络侧配置了使用UL重传被禁用的混合自动重传请求HARQ的逻辑信道所触发的常规BSR、或者辅助小区波束失败恢复BFR，触发2-STEP随机接入以请求可用上行资源；或者，响应于SR的触发源为除上述触发源之外的其他触发源，触发4-STEP随机接入以请求可用上行资源。其中，调度请求资源例如可以为，物理上行链路控制信道(Physical Uplink Control Channel，PUCCH)资源。
其中，响应于SR的触发源为网络侧配置了2-STEP随机接入的逻辑信道所触发的常规缓存状态报告BSR、或者网络侧配置了使用UL重传被禁用的混合自动重传请求HARQ的逻辑信道所触发的常规BSR、或者辅助小区波束失败恢复BFR，用户设备可以触发2-STEP随机接入以请求调度请求资源；进而通过调度请求资源发送调度请求，以请求可用上行资源；在SR由常规BSR触发时，通过可用上行资源发送常规BSR；在SR由波束失败恢复BFR触发时，通过可用上行资源实现波束恢复。
其中，可以通过媒体访问控制层控制元素MAC CE或者物理下行控制信道PDCCH对用户设备的网络配置进行激活处理或者去激活处理。也就是说，可以通过MAC CE或者PDCCH对用户设备的网络配置进行激活处理，从而结合网络配置来确定是否触发2-STEP随机接入；也可以通过MAC CE或者PDCCH对用户设备的网络配置进行去激活处理，从而避免结合网络配置来确定是否触发2-STEP随机接入。
根据本申请实施例的随机接入方法，可以通过确定2-STEP随机接入的触发源；响应于触发源为调度请求SR，基于未存在调度请求资源，触发2-STEP随机接入以获取可用上行资源，由此，能够在调度请求SR被触发时，触发2-STEP随机接入来发送调度请求SR，以获取可用上行资源，从而减少接入时延，提高SR发送速度，提高请求可用上行资源的速度。
作为另一种可能的实现方式，如图10所示，本申请提出的随机接入方法，包括如下步骤：
S1001、确定2-STEP随机接入的触发源。
本申请中，2-STEP随机接入的触发源例如，波束失败恢复(Beam Failure Recovery，BFR)、缓存状态报告(Buffer Status Report，BSR)、调度请求(Scheduling Request，SR)、小数据包传输等。其中，波束失败恢复BFR、缓存状态报告BSR和调度请求SR，为处于连接态的用户设备(User Equipment，UE)触发的；小数据包传输，为处于非激活态(inactive)的用户设备触发的。
S1002、响应于触发源为调度请求SR，基于存在调度请求资源，通过调度请求资源请求可用上行资源。
本申请中，触发调度请求SR的触发源例如可以为，常规缓存状态报告BSR或者波束失败恢复BFR等。
本申请中，基于存在调度请求资源，用户设备可以通过调度请求资源发送调度请求，以请求可用上行资源，在SR由常规BSR触发时，通过可用上行资源发送常规BSR；在SR由波束失败恢复BFR触发时，通过可用上行资源实现波束恢复。其中，调度请求资源例如可以为，物理上行链路控制信道(Physical Uplink Control Channel，PUCCH)资源。
根据本申请实施例的随机接入方法，可以通过确定2-STEP随机接入的触发源；响应于触发源为调度请求SR，基于存在调度请求资源，通过调度请求资源请求可用上行资源，由此，能够在调度请求SR被触发，且存在调度请求资源时，通过调度请求资源请求可用上行资源，从而减少接入时延，提高请求可用上行资源的速度。
作为另一种可能的实现方式，如图11所示，本申请提出的随机接入方法，包括如下步骤：
S1101、确定2-STEP随机接入的触发源。
本申请中，2-STEP随机接入的触发源例如，波束失败恢复(Beam Failure Recovery，BFR)、缓存状态报告(Buffer Status Report，BSR)、调度请求(Scheduling Request，SR)、小数据包传输等。其中，波束失败恢复BFR、缓存状态报告BSR和调度请求SR，为处于连接态的用户设备(User Equipment，UE)触发的；小数据包传输，为处于非激活态(inactive)的用户设备触发的。
S1102、响应于触发源为小数据包传输，获取触发小数据包传输的数据承载DRB。
本申请中，对于网络侧配置了小数据包传输的数据承载(Data Radio Bearer，DRB)，若其数据量达到或超过一个阈值，则用户设备的无线资源控制RRC层指示介质访问控制MAC层进行小数据包传输，从而触发小数据包传输。
本申请中，RRC层指示MAC层进行小数据包传输时，还可以进一步指示是否采用随机接入或者配置授权(configured grant)来进行小数据包传输。比如，如果用户设备的网络配置中不包括配置授权资源，或者，虽然包括配置授权资源，但配置授权资源不满足该数据承载对应的逻辑信道的LCP mapping限制，则RRC层指示MAC层采用随机接入来进行小数据包传输。另外，如果指示采用随机接入来进行小数据包传输，则可以进一步指示是否采用2-STEP随机接入来进行小数据包传输。
S1103、响应于用户设备的网络配置包括DRB或者DRB对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输小数据包。
本申请中，在触发小数据包传输的DRB为多个的情况下，可以获取优先级最高的DRB；在用户设备的网络配置包括该优先级最高的DRB或者该优先级最高的DRB对应的逻辑信道配置了2-STEP随机接入资源或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输小数据包。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：用户设备触发2-STEP随机接入后，可以选择发起非竞争性的随机接入或者竞争性的随机接入。选择发起哪种随机接入后，还可以选择发起随机接入的带宽部分(Bandwidth Part，BWP)；在BWP配置有2-STEP随机接入资源时，发起2-STEP随机接入；或者，在BWP未配置有2-STEP随机接入资源时，发起4-STEP随机接入。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：响应于BWP配置有2-STEP随机接入资源，用户设备可以先获取所述BWP的下行路损参考的参考信号接收功率RSRP；并获取触发2-STEP随机接入的小数据包传输对应的RSRP阈值；在RSRP大于或者等于RSRP阈值时，发起2-STEP随机接入；在RSRP小于RSRP阈值时，发起4-STEP随机接入。其中，此处的RSRP阈值不同于msgA-RSRP-Threshold。
根据本申请实施例的随机接入方法，可以通过确定2-STEP随机接入的触发源；响应于触发源为小数据包传输，获取触发小数据包传输的数据承载DRB；响应于用户设备的网络配置包括DRB或者DRB对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输小数据包，由此，能够在小数据包传输被触发时，触发2-STEP随机接入来传输小数据包，从而减少接入时延，提高小数据包传输速度。
作为另一种可能的实现方式，如图12所示，本申请提出的随机接入方法，包括如下步骤：
S1201、确定2-STEP随机接入的触发源。
本申请中，2-STEP随机接入的触发源例如，波束失败恢复(Beam Failure Recovery，BFR)、缓存状态报告(Buffer Status Report，BSR)、调度请求(Scheduling Request，SR)、小数据包传输等。其中，波束失败恢复BFR、缓存状态报告BSR和调度请求SR，为处于连接态的用户设备(User Equipment，UE)触发的；小数据包传输，为处于非激活态(inactive)的用户设备触发的。
S1202、响应于触发源为小数据包传输，获取用户设备的网络配置。
本申请中，小数据包传输，一般指的是，用户设备处于非激活态时需要进行的小数据包传输。
S1203、响应于网络配置包括允许用户设备在非激活态下触发2-STEP随机接入，触发2-STEP随机接入以传输小数据包。
本申请中，用户设备还可以响应于网络配置未包括允许用户设备在非激活态下触发2-STEP随机接入，触发4-STEP随机接入以传输小数据包。
本申请中，非激活态下的用户设备触发随机接入的情况可以包括以下中的一种或者多种：小数据包传输触发的随机接入、以及非小数据包传输触发的随机接入。其中，非小数据包传输触发的随机接入，例如SI请求触发的随机接入、RRC层触发的随机接入等。
也就是说，本申请中，响应于触发源为SI请求，或者响应于触发源为RRC层的触发，基于网络配置包括允许用户设备在非激活态下触发2-STEP随机接入，用户设备也可以触发2-STEP随机接入。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：用户设备触发2-STEP随机接入后，可以选择发起非竞争性的随机接入或者竞争性的随机接入。选择发起哪种随机接入后，还可以选择发起随机接入的带宽部分(Bandwidth Part，BWP)；在BWP配置有2-STEP随机接入资源时，发起2-STEP随机接入；或者，在BWP未配置有2-STEP随机接入资源时，发起4-STEP随机接入。
本申请提出的一种随机接入方法。该方法可以单独被执行，也可以结合本申请公开的其他方法一起被执行。其中，需要说明的是，本申请的随机接入方法，可以在用户设备执行。所述方法包括：响应于BWP配置有2-STEP随机接入资源，用户设备可以先获取BWP的下行路损参考的参考信号接收功率RSRP；并获取触发2-STEP随机接入的小数据包传输对应的RSRP阈值；在RSRP大于或者等于RSRP阈值时，发起2-STEP随机接入；在RSRP小于RSRP阈值时，发起4-STEP随机接入。其中，此处的RSRP阈值不同于msgA-RSRP-Threshold。
根据本申请实施例的随机接入方法，可以通过确定2-STEP随机接入的触发源；响应于触发源为小数据包传输，获取用户设备的网络配置；响应于网络配置包括允许用户设备在非激活态下触发2-STEP随机接入，触发2-STEP随机接入以传输小数据包，由此，能够在小数据包传输被触发时，触发2-STEP随机接入来传输小数据包，从而减少接入时延，提高小数据包传输速度。
图13是根据本申请提出的一种随机接入方法的示意图。其中，需要说明的是，本申请的随机接入方法，可以在与用户设备对应的网络侧设备执行。其中，网络侧设备，例如基站、卫星等。
如图13所示，本申请提出的随机接入方法，包括如下步骤：
S1301、接收用户设备发送的2-STEP随机接入请求，其中，2-STEP随机接入请求为用 户设备基于触发源发起的。
本申请中，2-STEP随机接入的触发源例如，波束失败恢复(Beam Failure Recovery，BFR)、缓存状态报告(Buffer Status Report，BSR)、调度请求(Scheduling Request，SR)、小数据包传输等。其中，波束失败恢复BFR、缓存状态报告BSR和调度请求SR，为处于连接态的用户设备(User Equipment，UE)触发的；小数据包传输，为处于非激活态(inactive)的用户设备触发的。
本申请中，随机接入分为两种：4-STEP随机接入和2-STEP随机接入。4-STEP随机接入包括4步。第1步：用户设备向基站发送Random Access Preamble；第2步：基站向用户设备返回Random Access Response；第3步：用户设备向基站发送Scheduled Transmission；第4步，基站向用户设备返回Contention Resolution。2-STEP随机接入包括2步。第1步为MsgA，该步相当于4-STEP随机接入的第1步+第3步；第2步为MsgB，该步相当于4-STEP随机接入的第2步+第4步。
本申请中，用户设备根据触发源触发2-STEP随机接入后，可以选择发起随机接入的带宽部分(Bandwidth Part，BWP)；响应于BWP配置有2-STEP随机接入资源，发起2-STEP随机接入；或者，响应于BWP未配置有2-STEP随机接入资源，发起4-STEP随机接入。
本申请中，在BWP配置有2-STEP随机接入资源时，用户设备可以先获取BWP的下行路损参考的参考信号接收功率RSRP；并获取触发2-STEP随机接入的触发源对应的RSRP阈值；其中，不同触发源对应不同的RSRP阈值；在RSRP大于或者等于RSRP阈值时，发起2-STEP随机接入；在RSRP小于RSRP阈值时，发起4-STEP随机接入。其中，此处的RSRP阈值不同于msgA-RSRP-Threshold。
本申请中，可选的，2-STEP随机接入请求为：用户设备响应于触发源为辅助小区波束失败恢复BFR且未存在可用上行资源而发送的用于请求可用上行资源的2-STEP随机接入请求。
其中，可用上行资源可以包括以下的至少一种：用于发送BFR媒体访问控制层控制元素MAC CE的可用上行资源；用于发送截断BFR MAC CE的可用上行资源；对应的混合自动重传请求HARQ的UL重传没有被禁用的可用上行资源。
本申请中，可选的，2-STEP随机接入请求为用户设备发送的用于恢复波束的2-STEP随机接入请求。其中，用户设备响应于触发源为主小区波束失败恢复BFR和/或主辅小区波束失败恢复BFR，获取用户设备的网络配置；且用户设备响应于网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，发送2-STEP随机接入请求以恢复波束。
其中，用户设备发送的2-STEP随机接入请求可以为：用户设备响应于网络配置包括用于BFR的非竞争的随机接入资源，获取用于BFR的非竞争的随机接入资源的类型；并根据非竞争的随机接入资源的类型发送的用于恢复波束的2-STEP随机接入请求。
其中，用户设备发送的2-STEP随机接入请求可以为：用户设备响应于网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，且网络配置 包括用于BFR的非竞争的随机接入资源，获取用于BFR的非竞争的随机接入资源的类型；并根据非竞争的随机接入资源的类型发送的用于恢复波束的2-STEP随机接入请求。
本申请中，可选的，2-STEP随机接入请求为用户设备发送的用于请求可用上行资源的2-STEP随机接入请求。其中，用户设备响应于触发源为常规缓存状态报告BSR，且未存在可用上行资源或者存在的可用上行资源未满足触发BSR的逻辑信道的LCP mapping限制，触发2-STEP随机接入以请求可用上行资源。
其中，触发常规BSR可以包括以下的至少一种：网络侧配置了2-STEP随机接入的逻辑信道；网络侧配置了禁用UL重传的混合自动重传请求HARQ的逻辑信道；网络侧配置了低时延的逻辑信道；其中，逻辑信道为业务信道和/或控制信道；网络侧配置了允许用户设备使用2-STEP随机接入。
其中，用户设备可以响应于常规BSR为多个，且多个常规BSR触发的随机接入的类型不同，从多个类型中选择一种类型来发起随机接入；或者，用户设备可以响应于常规BSR为多个，且多个常规BSR触发的随机接入的类型不同，从多个常规BSR中选择优先级最高的逻辑信道所触发的常规BSR，并以所选择的常规BSR触发的随机接入类型来发起随机接入。
其中，网络侧设备可以通过媒体访问控制层控制元素MAC CE或者物理下行控制信道PDCCH对用户设备的网络配置进行激活处理或者去激活处理。
本申请中，可选的，2-STEP随机接入请求为：用户设备响应于触发源为调度请求SR且未存在调度请求资源，而发送的用于请求可用上行资源的2-STEP随机接入请求。
其中，用户设备可以响应于触发源为调度请求SR且未存在调度请求资源，获取SR的触发源；且用户设备响应于SR的触发源为网络侧配置了2-STEP随机接入的逻辑信道所触发的常规缓存状态报告BSR、或者网络侧配置了使用UL重传被禁用的混合自动重传请求HARQ的逻辑信道所触发的常规BSR、或者辅助小区波束失败恢复BFR，触发2-STEP随机接入以请求可用上行资源。
其中，用户设备可以响应于未存在调度请求资源，获取用户设备的网络配置；且用户设备响应于网络配置包括允许SR触发2-STEP随机接入，触发2-STEP随机接入以获取可用上行资源。
其中，网络侧设备可以通过媒体访问控制层控制元素MAC CE或者物理下行控制信道PDCCH对用户设备的网络配置进行激活处理或者去激活处理。
本申请中，可选的，2-STEP随机接入请求为用户设备发送的用于传输小数据包的2-STEP随机接入请求；其中，用户设备响应于触发源为小数据包传输，获取触发小数据包传输的数据承载DRB；且用户设备响应于用户设备的网络配置包括DRB或者DRB对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输小数据包。
其中，用户设备可以响应于触发小数据包传输的DRB为多个，获取优先级最高的DRB；且用户设备响应于网络配置包括优先级最高的DRB或者优先级最高的DRB对应的逻辑信 道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输小数据包。
本申请中，可选的，2-STEP随机接入请求为：用户设备响应于触发源为小数据包传输且用户设备的网络配置中包括允许用户设备在非激活态下触发2-STEP随机接入，而发送的用于传输小数据包的2-STEP随机接入请求。
本申请中，可选的，2-STEP随机接入请求为：用户设备响应于选择发起随机接入的带宽部分BWP配置有2-STEP随机接入资源而发起的2-STEP随机接入请求。
本申请中，可选的，网络侧设备还可以接收用户设备发起的4-STEP随机接入请求；其中，4-STEP随机接入请求为，用户设备响应于选择发起随机接入的带宽部分BWP未配置有2-STEP随机接入资源而发起的4-STEP随机接入请求。
需要说明的是，本申请中，用户设备发起2-STEP随机接入请求或者4-STEP随机接入请求的详细描述，可以参考图1至图12所示实施例，此处不再做详细描述。
根据本申请实施例的随机接入方法，可以通过接收用户设备发送的2-STEP随机接入请求；其中，2-STEP随机接入请求为用户设备基于触发源发起的，由此，能够针对2-STEP随机接入的触发源，触发2-STEP随机接入，减少交互步数，减少接入时延。
与上述几种实施例提供的随机接入方法相对应，本申请还提供一种随机接入装置，由于本申请实施例提供的随机接入装置与上述几种实施例提供的随机接入方法相对应，因此在随机接入方法的实施方式也适用于本实施例提供的随机接入装置，在本实施例中不再详细描述。图14～图21是根据本申请提出的随机接入装置的结构示意图。
图14是本申请提供的随机接入装置的结构示意图。所述装置应用于用户设备UE。
如图14所示，该随机接入装置1000，包括：确定模块100和触发模块200。其中，确定模块100，被配置为确定2-STEP随机接入的触发源；触发模块200，被配置为根据所述2-STEP随机接入的所述触发源，相应的触发2-STEP随机接入。
本申请中，所述的随机接入装置1000还可以包括：获取模块，被配置为获取用户设备选择发起随机接入的带宽部分BWP；
发起模块，被配置为响应于所述BWP配置有2-STEP随机接入资源，发起2-STEP随机接入；或者，响应于所述BWP未配置有2-STEP随机接入资源，发起4-STEP随机接入。
本申请中，所述发起模块具体被配置为，响应于所述BWP配置有2-STEP随机接入资源，获取所述BWP的下行路损参考的参考信号接收功率RSRP；获取触发2-STEP随机接入的触发源对应的RSRP阈值；响应于所述RSRP大于或者等于所述RSRP阈值，发起2-STEP随机接入。
根据本申请实施例的随机接入装置，可以通过确定2-STEP随机接入的触发源；根据2-STEP随机接入的触发源，触发2-STEP随机接入，由此，能够针对2-STEP随机接入的触发源，触发2-STEP随机接入，减少交互步数，减少接入时延。
在本申请的实施例中，如图15所示，图14中的所述触发模块200，包括：第一触发 单元210；
其中，第一触发单元210，被配置为响应于所述触发源为辅助小区波束失败恢复BFR，基于未存在可用上行资源，触发2-STEP随机接入以请求所述可用上行资源。
可选的，所述触发模块200还可以包括：第一处理单元220，被配置为基于存在所述可用上行资源，通过所述可用上行资源实现波束恢复。
本申请中，所述可用上行资源包括以下的至少一种：用于发送BFR媒体访问控制层控制元素MAC CE的可用上行资源；用于发送截断BFR MAC CE的可用上行资源；对应的混合自动重传请求HARQ的UL重传没有被禁用的可用上行资源。
根据本申请实施例的随机接入装置，可以通过确定2-STEP随机接入的触发源；响应于触发源为辅助小区波束失败恢复BFR，基于未存在可用上行资源，触发2-STEP随机接入以请求可用上行资源，由此，能够在辅助小区BFR被触发时，触发2-STEP随机接入来发送BFR MAC CE，从而减少接入时延，提高波束恢复速度。
在本申请的实施例中，如图16所示，图14中的所述触发模块200，包括：第一获取单元230和第二触发单元240；
其中，第一获取单元230，被配置为响应于所述触发源为主小区波束失败恢复BFR和/或主辅小区波束失败恢复BFR，获取用户设备的网络配置；
第二触发单元240，被配置为响应于所述网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，触发2-STEP随机接入以恢复波束。
本申请中，可选的，所述第一获取单元230，还被配置为响应于所述网络配置包括用于BFR的非竞争的随机接入资源；所述第二触发单元240，还被配置为根据非竞争的随机接入资源的类型触发2-STEP随机接入以恢复波束。
本申请中，可选的，所述第一获取单元230，还被配置为响应于所述网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，以及包括用于BFR的非竞争的随机接入资源，获取用于BFR的非竞争的随机接入资源的类型；所述第二触发单元240，还被配置为根据非竞争的随机接入资源的类型触发2-STEP随机接入以恢复波束。
根据本申请实施例的随机接入装置，可以通过确定2-STEP随机接入的触发源；响应于触发源为主小区波束失败恢复BFR和/或主辅小区波束失败恢复BFR，获取用户设备的网络配置；响应于网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，触发2-STEP随机接入以恢复波束，由此，能够在主小区BFR被触发时和/或主辅小区BFR被触发时，触发2-STEP随机接入来恢复波束，从而减少接入时延，提高波束恢复速度。
在本申请的实施例中，如图17所示，图14中的所述触发模块200，包括：第三触发单元250；
其中，第三触发单元250，被配置为响应于所述触发源为常规缓存状态报告BSR，基于未存在可用上行资源或者存在的所述可用上行资源未满足触发所述BSR的逻辑信道的 LCP mapping限制，触发2-STEP随机接入以请求所述可用上行资源。
可选的，所述触发模块200，包括：第二处理单元260，基于存在所述可用上行资源，且存在的所述可用上行资源满足触发所述BSR的逻辑信道的LCP mapping限制，通过所述可用上行资源发送所述常规BSR。
本申请中触发所述常规BSR包括以下的至少一种：网络侧配置了2-STEP随机接入的逻辑信道；网络侧配置了禁用UL重传的混合自动重传请求HARQ的逻辑信道；网络侧配置了低时延的逻辑信道；其中，所述逻辑信道为业务信道和/或控制信道；网络侧配置了允许用户设备使用2-STEP随机接入。
本申请中，所述触发模块还包括：选择单元，被配置为，
响应于所述常规BSR为多个，且多个所述常规BSR触发的随机接入的类型不同，从多个类型中选择一种类型来发起随机接入；
或者，
响应于所述常规BSR为多个，且多个所述常规BSR触发的随机接入的类型不同，从多个所述常规BSR中选择优先级最高的逻辑信道所触发的常规BSR，并以所选择的常规BSR触发的随机接入类型来发起随机接入。
本申请中，通过媒体访问控制层控制元素MAC CE或者物理下行控制信道PDCCH对用户设备的所述网络配置进行激活处理或者去激活处理。
根据本申请实施例的随机接入装置，可以通过确定2-STEP随机接入的触发源；响应于触发源为常规缓存状态报告BSR，基于未存在可用上行资源或者存在的可用上行资源未满足触发BSR的逻辑信道的LCP mapping限制，触发2-STEP随机接入以请求可用上行资源，由此，能够在常规缓存状态报告BSR被触发时，触发2-STEP随机接入来发送常规BSR，从而减少接入时延，提高常规BSR发送速度。
在本申请的实施例中，如图18所示，图14中的所述触发模块200，包括：第四触发单元270；
其中，第四触发单元270，被配置为响应于所述触发源为调度请求SR，基于未存在调度请求资源，触发2-STEP随机接入以请求可用上行资源。
可选的，所述触发模块200，还包括：第三处理单元280，被配置为基于存在所述调度请求资源，通过所述调度请求资源请求所述可用上行资源。
本申请中，所述第四触发单元270具体被配置为，基于未存在所述调度请求资源，获取所述SR的触发源；响应于所述SR的触发源为网络侧配置了2-STEP随机接入的逻辑信道所触发的常规缓存状态报告BSR、或者网络侧配置了使用UL重传被禁用的混合自动重传请求HARQ的逻辑信道所触发的常规BSR、或者辅助小区波束失败恢复BFR，触发2-STEP随机接入以请求所述可用上行资源。
本申请中，所述第四触发单元270具体被配置为，基于未存在所述调度请求资源，获取用户设备的网络配置；响应于所述网络配置包括允许所述SR触发2-STEP随机接入，触发2-STEP随机接入以获取所述可用上行资源。
本申请中，通过媒体访问控制层控制元素MAC CE或者物理下行控制信道PDCCH对用户设备的所述网络配置进行激活处理或者去激活处理。
根据本申请实施例的随机接入装置，可以通过确定2-STEP随机接入的触发源；响应于触发源为调度请求SR，基于存在调度请求资源，通过调度请求资源请求可用上行资源，由此，能够在调度请求SR被触发，且存在调度请求资源时，通过调度请求资源请求可用上行资源，从而减少接入时延，提高请求可用上行资源的速度。
在本申请的实施例中，如图19所示，图14中的所述触发模块200，包括：第二获取单元290和第五触发单元300；
其中，第二获取单元290，被配置为响应于所述触发源为小数据包传输，获取触发小数据包传输的数据承载DRB；
第五触发单元300，被配置为响应于用户设备的网络配置包括所述DRB或者所述DRB对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输所述小数据包。
本申请中，所述第五触发单元300具体被配置为，
响应于触发所述小数据包传输的DRB为多个，获取优先级最高的DRB；
响应于所述用户设备的所述网络配置包括所述优先级最高的DRB或者所述优先级最高的DRB对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输所述小数据包。
根据本申请实施例的随机接入装置，可以通过确定2-STEP随机接入的触发源；响应于触发源为小数据包传输，获取触发小数据包传输的数据承载DRB；响应于用户设备的网络配置包括DRB或者DRB对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输小数据包，由此，能够在小数据包传输被触发时，触发2-STEP随机接入来传输小数据包，从而减少接入时延，提高小数据包传输速度。
在本申请的实施例中，如图20所示，图14中的所述触发模块200，包括：第三获取单元310和第六触发单元320；
其中，第三获取单元310，被配置为响应于所述触发源为小数据包传输，获取用户设备的网络配置；
第六触发单元320，被配置为响应于所述网络配置包括允许所述用户设备在非激活态下触发2-STEP随机接入，触发2-STEP随机接入以传输所述小数据包。
根据本申请实施例的随机接入装置，可以通过确定2-STEP随机接入的触发源；响应于触发源为小数据包传输，获取用户设备的网络配置；响应于网络配置包括允许用户设备在非激活态下触发2-STEP随机接入，触发2-STEP随机接入以传输小数据包，由此，能够在小数据包传输被触发时，触发2-STEP随机接入来传输小数据包，从而减少接入时延，提高小数据包传输速度。
图21是本申请提供的随机接入装置的结构示意图。所述装置应用于与用户设备UE 对应的网络侧设备，例如基站、卫星等。
如图21所示，该随机接入装置2000，包括：接收模块800，被配置为接收用户设备发送的2-STEP随机接入请求；其中，所述2-STEP随机接入请求为所述用户设备基于触发源发起的。
本申请中，所述接收模块800，还被配置为接收所述用户设备发起的4-STEP随机接入请求；其中，所述4-STEP随机接入请求为，用户设备响应于选择发起随机接入的带宽部分BWP未配置有2-STEP随机接入资源而发起的4-STEP随机接入请求。
本申请中，可选的，2-STEP随机接入请求为：用户设备响应于触发源为辅助小区波束失败恢复BFR且未存在可用上行资源而发送的用于请求可用上行资源的2-STEP随机接入请求。
其中，可用上行资源可以包括以下的至少一种：用于发送BFR媒体访问控制层控制元素MAC CE的可用上行资源；用于发送截断BFR MAC CE的可用上行资源；对应的混合自动重传请求HARQ的UL重传没有被禁用的可用上行资源。
本申请中，可选的，2-STEP随机接入请求为用户设备发送的用于恢复波束的2-STEP随机接入请求。其中，用户设备响应于触发源为主小区波束失败恢复BFR和/或主辅小区波束失败恢复BFR，获取用户设备的网络配置；且用户设备响应于网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，发送2-STEP随机接入请求以恢复波束。
其中，用户设备发送的2-STEP随机接入请求可以为：用户设备响应于网络配置包括用于BFR的非竞争的随机接入资源，获取用于BFR的非竞争的随机接入资源的类型；并根据非竞争的随机接入资源的类型发送的用于恢复波束的2-STEP随机接入请求。
其中，用户设备发送的2-STEP随机接入请求可以为：用户设备响应于网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，且网络配置包括用于BFR的非竞争的随机接入资源，获取用于BFR的非竞争的随机接入资源的类型；并根据非竞争的随机接入资源的类型发送的用于恢复波束的2-STEP随机接入请求。
本申请中，可选的，2-STEP随机接入请求为用户设备发送的用于请求可用上行资源的2-STEP随机接入请求。其中，用户设备响应于触发源为常规缓存状态报告BSR，且未存在可用上行资源或者存在的可用上行资源未满足触发BSR的逻辑信道的LCP mapping限制，触发2-STEP随机接入以请求可用上行资源。
其中，触发常规BSR可以包括以下的至少一种：网络侧配置了2-STEP随机接入的逻辑信道；网络侧配置了禁用UL重传的混合自动重传请求HARQ的逻辑信道；网络侧配置了低时延的逻辑信道；其中，逻辑信道为业务信道和/或控制信道；网络侧配置了允许用户设备使用2-STEP随机接入。
其中，用户设备可以响应于常规BSR为多个，且多个常规BSR触发的随机接入的类型不同，从多个类型中选择一种类型来发起随机接入；或者，用户设备可以响应于常规BSR为多个，且多个常规BSR触发的随机接入的类型不同，从多个常规BSR中选择优先级最 高的逻辑信道所触发的常规BSR，并以所选择的常规BSR触发的随机接入类型来发起随机接入。
其中，网络侧设备可以通过媒体访问控制层控制元素MAC CE或者物理下行控制信道PDCCH对用户设备的网络配置进行激活处理或者去激活处理。
本申请中，可选的，2-STEP随机接入请求为：用户设备响应于触发源为调度请求SR且未存在调度请求资源，而发送的用于请求可用上行资源的2-STEP随机接入请求。
其中，用户设备可以响应于触发源为调度请求SR且未存在调度请求资源，获取SR的触发源；且用户设备响应于SR的触发源为网络侧配置了2-STEP随机接入的逻辑信道所触发的常规缓存状态报告BSR、或者网络侧配置了使用UL重传被禁用的混合自动重传请求HARQ的逻辑信道所触发的常规BSR、或者辅助小区波束失败恢复BFR，触发2-STEP随机接入以请求可用上行资源。
其中，用户设备可以响应于未存在调度请求资源，获取用户设备的网络配置；且用户设备响应于网络配置包括允许SR触发2-STEP随机接入，触发2-STEP随机接入以获取可用上行资源。
其中，网络侧设备可以通过媒体访问控制层控制元素MAC CE或者物理下行控制信道PDCCH对用户设备的网络配置进行激活处理或者去激活处理。
本申请中，可选的，2-STEP随机接入请求为用户设备发送的用于传输小数据包的2-STEP随机接入请求；其中，用户设备响应于触发源为小数据包传输，获取触发小数据包传输的数据承载DRB；且用户设备响应于用户设备的网络配置包括DRB或者DRB对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输小数据包。
其中，用户设备可以响应于触发小数据包传输的DRB为多个，获取优先级最高的DRB；且用户设备响应于网络配置包括优先级最高的DRB或者优先级最高的DRB对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输小数据包。
本申请中，可选的，2-STEP随机接入请求为：用户设备响应于触发源为小数据包传输且用户设备的网络配置中包括允许用户设备在非激活态下触发2-STEP随机接入，而发送的用于传输小数据包的2-STEP随机接入请求。
本申请中，可选的，2-STEP随机接入请求为：用户设备响应于选择发起随机接入的带宽部分BWP配置有2-STEP随机接入资源而发起的2-STEP随机接入请求。
本申请中，可选的，网络侧设备还可以接收用户设备发起的4-STEP随机接入请求；其中，4-STEP随机接入请求为，用户设备响应于选择发起随机接入的带宽部分BWP未配置有2-STEP随机接入资源而发起的4-STEP随机接入请求。
需要说明的是，本申请中，用户设备发起2-STEP随机接入请求或者4-STEP随机接入请求的详细描述，可以参考图1至图12所示实施例，此处不再做详细描述。
根据本申请的实施例，本申请还提供了一种电子设备和一种可读存储介质。
如图22所示，是根据本申请实施例的用于随机接入的电子设备的框图。电子设备旨在表示各种形式的数字计算机，诸如，膝上型计算机、台式计算机、工作台、个人数字助理、服务器、刀片式服务器、大型计算机、和其它适合的计算机。电子设备还可以表示各种形式的移动装置，诸如，个人数字处理、蜂窝电话、智能电话、可穿戴设备和其它类似的计算装置。本文所示的部件、它们的连接和关系、以及它们的功能仅仅作为示例，并且不意在限制本文中描述的和/或者要求的本申请的实现。
如图22所示，该电子设备包括：一个或多个处理器1100、存储器1200，以及用于连接各部件的接口，包括高速接口和低速接口。各个部件利用不同的总线互相连接，并且可以被安装在公共主板上或者根据需要以其它方式安装。处理器可以对在电子设备内执行的指令进行处理，包括存储在存储器中或者存储器上以在外部输入/输出装置(诸如，耦合至接口的显示设备)上显示GUI的图形信息的指令。在其它实施方式中，若需要，可以将多个处理器和/或多条总线与多个存储器和多个存储器一起使用。同样，可以连接多个电子设备，各个设备提供部分必要的操作(例如，作为服务器阵列、一组刀片式服务器、或者多处理器系统)。图22中以一个处理器1100为例。
存储器1200即为本申请所提供的非瞬时计算机可读存储介质。其中，所述存储器存储有可由至少一个处理器执行的指令，以使所述至少一个处理器执行本申请所提供的随机接入方法。本申请的非瞬时计算机可读存储介质存储计算机指令，该计算机指令用于使计算机执行本申请所提供的随机接入方法。
存储器1200作为一种非瞬时计算机可读存储介质，可用于存储非瞬时软件程序、非瞬时计算机可执行程序以及模块，如本申请实施例中的随机接入方法对应的程序指令/模块(例如，附图14所示的确定模块100和触发模块200；又例如，附图21所述的接收模块800)。处理器1100通过运行存储在存储器1200中的非瞬时软件程序、指令以及模块，从而执行服务器的各种功能应用以及数据处理，即实现上述方法实施例中的随机接入方法。
存储器1200可以包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需要的应用程序；存储数据区可存储根据定位电子设备的使用所创建的数据等。此外，存储器1200可以包括高速随机存取存储器，还可以包括非瞬时存储器，例如至少一个磁盘存储器件、闪存器件、或其他非瞬时固态存储器件。可选地，存储器1200可选包括相对于处理器1100远程设置的存储器，这些远程存储器可以通过网络连接至定位电子设备。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
随机接入的电子设备还可以包括：输入装置1300和输出装置1400。处理器1100、存储器1200、输入装置1300和输出装置1400可以通过总线或者其他方式连接，图22中以通过总线连接为例。
输入装置1300可接收输入的数字或字符信息，以及产生与定位电子设备的用户设置以及功能控制有关的键信号输入，例如触摸屏、小键盘、鼠标、轨迹板、触摸板、指示杆、 一个或者多个鼠标按钮、轨迹球、操纵杆等输入装置。输出装置1400可以包括显示设备、辅助照明装置(例如，LED)和触觉反馈装置(例如，振动电机)等。该显示设备可以包括但不限于，液晶显示器(LCD)、发光二极管(LED)显示器和等离子体显示器。在一些实施方式中，显示设备可以是触摸屏。
此处描述的系统和技术的各种实施方式可以在数字电子电路系统、集成电路系统、专用ASIC(专用集成电路)、计算机硬件、固件、软件、和/或它们的组合中实现。这些各种实施方式可以包括：实施在一个或者多个计算机程序中，该一个或者多个计算机程序可在包括至少一个可编程处理器的可编程系统上执行和/或解释，该可编程处理器可以是专用或者通用可编程处理器，可以从存储系统、至少一个输入装置、和至少一个输出装置接收数据和指令，并且将数据和指令传输至该存储系统、该至少一个输入装置、和该至少一个输出装置。
这些计算程序(也称作程序、软件、软件应用、或者代码)包括可编程处理器的机器指令，并且可以利用高级过程和/或面向对象的编程语言、和/或汇编/机器语言来实施这些计算程序。如本文使用的，术语“机器可读介质”和“计算机可读介质”指的是用于将机器指令和/或数据提供给可编程处理器的任何计算机程序产品、设备、和/或装置(例如，磁盘、光盘、存储器、可编程逻辑装置(PLD))，包括，接收作为机器可读信号的机器指令的机器可读介质。术语“机器可读信号”指的是用于将机器指令和/或数据提供给可编程处理器的任何信号。
为了提供与用户的交互，可以在计算机上实施此处描述的系统和技术，该计算机具有：用于向用户显示信息的显示装置(例如，CRT(阴极射线管)或者LCD(液晶显示器)监视器)；以及键盘和指向装置(例如，鼠标或者轨迹球)，用户可以通过该键盘和该指向装置来将输入提供给计算机。其它种类的装置还可以用于提供与用户的交互；例如，提供给用户的反馈可以是任何形式的传感反馈(例如，视觉反馈、听觉反馈、或者触觉反馈)；并且可以用任何形式(包括声输入、语音输入或者、触觉输入)来接收来自用户的输入。
可以将此处描述的系统和技术实施在包括后台部件的计算系统(例如，作为数据服务器)、或者包括中间件部件的计算系统(例如，应用服务器)、或者包括前端部件的计算系统(例如，具有图形用户界面或者网络浏览器的用户计算机，用户可以通过该图形用户界面或者该网络浏览器来与此处描述的系统和技术的实施方式交互)、或者包括这种后台部件、中间件部件、或者前端部件的任何组合的计算系统中。可以通过任何形式或者介质的数字数据通信(例如，通信网络)来将系统的部件相互连接。通信网络的示例包括：局域网(LAN)、广域网(WAN)和互联网。
计算机系统可以包括客户端和服务器。客户端和服务器一般远离彼此并且通常通过通信网络进行交互。通过在相应的计算机上运行并且彼此具有客户端-服务器关系的计算机程序来产生客户端和服务器的关系。
根据本申请实施例的随机接入方法，可以通过确定2-STEP随机接入的触发源；响应于2-STEP随机接入的触发源，触发2-STEP随机接入，由此，能够针对2-STEP随机接入的 触发源，触发2-STEP随机接入，减少交互步数，减少接入时延。
应该理解，可以使用上面所示的各种形式的流程，重新排序、增加或删除步骤。例如，本发申请中记载的各步骤可以并行地执行也可以顺序地执行也可以不同的次序执行，只要能够实现本申请公开的技术方案所期望的结果，本文在此不进行限制。
上述具体实施方式，并不构成对本申请保护范围的限制。本领域技术人员应该明白的是，根据设计要求和其他因素，可以进行各种修改、组合、子组合和替代。任何在本申请的精神和原则之内所作的修改、等同替换和改进等，均应包含在本申请保护范围之内。

Claims (44)

  1. 一种随机接入方法，其特征在于，包括：
    确定2-STEP随机接入的触发源；
    根据所述2-STEP随机接入的所述触发源，相应的触发2-STEP随机接入。
  2. 根据权利要求1所述的随机接入方法，其特征在于，所述触发2-STEP随机接入，包括：
    响应于所述触发源为辅助小区波束失败恢复BFR，基于未存在可用上行资源，触发2-STEP随机接入以请求所述可用上行资源。
  3. 根据权利要求2所述的随机接入方法，其特征在于，所述可用上行资源包括以下的至少一种：
    用于发送BFR媒体访问控制层控制元素MAC CE的可用上行资源；
    用于发送截断BFR MAC CE的可用上行资源；
    对应的混合自动重传请求HARQ的UL重传没有被禁用的可用上行资源。
  4. 根据权利要求1所述的随机接入方法，其特征在于，所述触发2-STEP随机接入，包括：
    响应于所述触发源为主小区波束失败恢复BFR和/或主辅小区波束失败恢复BFR，获取用户设备的网络配置；
    响应于所述网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，触发2-STEP随机接入以恢复波束。
  5. 根据权利要求4所述的随机接入方法，其特征在于，所述方法还包括：
    响应于所述网络配置包括用于BFR的非竞争的随机接入资源，获取用于BFR的非竞争的随机接入资源的类型；
    根据非竞争的随机接入资源的类型触发2-STEP随机接入以恢复波束。
  6. 根据权利要求4所述的随机接入方法，其特征在于，所述方法还包括：
    响应于所述网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，且所述网络配置包括用于BFR的非竞争的随机接入资源，获取用于BFR的非竞争的随机接入资源的类型；
    根据非竞争的随机接入资源的类型触发2-STEP随机接入以恢复波束。
  7. 根据权利要求1所述的随机接入方法，其特征在于，所述触发2-STEP随机接入， 包括：
    响应于所述触发源为常规缓存状态报告BSR，基于未存在可用上行资源或者存在的所述可用上行资源未满足触发所述BSR的逻辑信道的LCP mapping限制，触发2-STEP随机接入以请求所述可用上行资源。
  8. 根据权利要求7所述的随机接入方法，其特征在于，触发所述常规BSR包括以下的至少一种：
    网络侧配置了2-STEP随机接入的逻辑信道；
    网络侧配置了禁用UL重传的混合自动重传请求HARQ的逻辑信道；
    网络侧配置了低时延的逻辑信道；其中，所述逻辑信道为业务信道和/或控制信道；
    网络侧配置了允许用户设备使用2-STEP随机接入。
  9. 根据权利要求7或8所述的随机接入方法，其特征在于，所述方法还包括：
    响应于所述常规BSR为多个，且多个所述常规BSR触发的随机接入的类型不同，从多个类型中选择一种类型来发起随机接入；
    或者，
    响应于所述常规BSR为多个，且多个所述常规BSR触发的随机接入的类型不同，从多个所述常规BSR中选择优先级最高的逻辑信道所触发的常规BSR，并以所选择的常规BSR触发的随机接入类型来发起随机接入。
  10. 根据权利要求8所述的随机接入方法，其特征在于，通过媒体访问控制层控制元素MAC CE或者物理下行控制信道PDCCH对用户设备的网络配置进行激活处理或者去激活处理。
  11. 根据权利要求1所述的随机接入方法，其特征在于，所述触发2-STEP随机接入，包括：
    响应于所述触发源为调度请求SR，基于未存在调度请求资源，触发2-STEP随机接入以获取可用上行资源。
  12. 根据权利要求11所述的随机接入方法，其特征在于，所述基于未存在调度请求资源，触发2-STEP随机接入以获取可用上行资源，包括：
    基于未存在所述调度请求资源，获取所述SR的触发源；
    响应于所述SR的触发源为网络侧配置了2-STEP随机接入的逻辑信道所触发的常规缓存状态报告BSR、或者网络侧配置了使用UL重传被禁用的混合自动重传请求HARQ的逻辑信道所触发的常规BSR、或者辅助小区波束失败恢复BFR，触发2-STEP随机接入以请求所述可用上行资源。
  13. 根据权利要求11所述的随机接入方法，其特征在于，所述基于未存在调度请求资源，触发2-STEP随机接入以获取可用上行资源，包括：
    基于未存在所述调度请求资源，获取用户设备的网络配置；
    响应于所述网络配置包括允许所述SR触发2-STEP随机接入，触发2-STEP随机接入以获取所述可用上行资源。
  14. 根据权利要求12或13所述的随机接入方法，其特征在于，通过媒体访问控制层控制元素MAC CE或者物理下行控制信道PDCCH对用户设备的网络配置进行激活处理或者去激活处理。
  15. 根据权利要求1所述的随机接入方法，其特征在于，所述触发2-STEP随机接入，包括：
    响应于所述触发源为小数据包传输，获取触发小数据包传输的数据承载DRB；
    响应于用户设备的网络配置包括所述DRB或者所述DRB对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输所述小数据包。
  16. 根据权利要求15所述的随机接入方法，其特征在于，所述响应于用户设备的网络配置包括所述DRB或者所述DRB对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输所述小数据包，包括：
    响应于触发所述小数据包传输的DRB为多个，获取优先级最高的DRB；
    响应于所述用户设备的所述网络配置包括所述优先级最高的DRB或者所述优先级最高的DRB对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输所述小数据包。
  17. 根据权利要求1所述的随机接入方法，其特征在于，所述触发2-STEP随机接入，包括：
    响应于所述触发源为小数据包传输，获取用户设备的网络配置；
    响应于所述网络配置包括允许所述用户设备在非激活态下触发2-STEP随机接入，触发2-STEP随机接入以传输所述小数据包。
  18. 根据权利要求1所述的随机接入方法，其特征在于，所述方法还包括：
    获取用户设备选择发起随机接入的带宽部分BWP；
    响应于所述BWP配置有2-STEP随机接入资源，发起2-STEP随机接入。
  19. 根据权利要求1所述的随机接入方法，其特征在于，所述方法还包括：
    获取用户设备选择发起随机接入的带宽部分BWP；
    响应于所述BWP未配置有2-STEP随机接入资源，发起4-STEP随机接入。
  20. 根据权利要求18所述的随机接入方法，其特征在于，所述响应于所述BWP配置有2-STEP随机接入资源，发起2-STEP随机接入，包括：
    响应于所述BWP配置有2-STEP随机接入资源，获取所述BWP的下行路损参考的参考信号接收功率RSRP；
    获取触发2-STEP随机接入的触发源对应的RSRP阈值；
    响应于所述RSRP大于或者等于所述RSRP阈值，发起2-STEP随机接入。
  21. 一种随机接入方法，其特征在于，包括：
    接收用户设备发送的2-STEP随机接入请求；
    其中，所述2-STEP随机接入请求为所述用户设备基于触发源发起的。
  22. 根据权利要求21所述的随机接入方法，其特征在于，所述2-STEP随机接入请求为：
    所述用户设备响应于所述触发源为辅助小区波束失败恢复BFR且未存在可用上行资源，而发送的用于请求所述可用上行资源的2-STEP随机接入请求。
  23. 根据权利要求22所述的随机接入方法，其特征在于，所述可用上行资源包括以下的至少一种：
    用于发送BFR媒体访问控制层控制元素MAC CE的可用上行资源；
    用于发送截断BFR MAC CE的可用上行资源；
    对应的混合自动重传请求HARQ的UL重传没有被禁用的可用上行资源。
  24. 根据权利要求21所述的随机接入方法，其特征在于，所述2-STEP随机接入请求为所述用户设备发送的用于恢复波束的2-STEP随机接入请求；
    其中，所述用户设备响应于所述触发源为主小区波束失败恢复BFR和/或主辅小区波束失败恢复BFR，获取所述用户设备的网络配置；且所述用户设备响应于所述网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，发送2-STEP随机接入请求以恢复波束。
  25. 根据权利要求24所述的随机接入方法，其特征在于，所述用户设备发送的所述2-STEP随机接入请求为：
    所述用户设备响应于所述网络配置包括用于BFR的非竞争的随机接入资源，获取用于 BFR的非竞争的随机接入资源的类型；并根据非竞争的随机接入资源的类型发送的用于恢复波束的2-STEP随机接入请求。
  26. 根据权利要求24所述的随机接入方法，其特征在于，所述用户设备发送的所述2-STEP随机接入请求为：
    所述用户设备响应于所述网络配置包括允许主小区BFR被触发时和/或主辅小区BFR被触发时触发2-STEP随机接入，且所述网络配置包括用于BFR的非竞争的随机接入资源，获取用于BFR的非竞争的随机接入资源的类型；并根据非竞争的随机接入资源的类型发送的用于恢复波束的2-STEP随机接入请求。
  27. 根据权利要求21所述的随机接入方法，其特征在于，所述2-STEP随机接入请求为所述用户设备发送的用于请求可用上行资源的2-STEP随机接入请求；
    其中，所述用户设备响应于所述触发源为常规缓存状态报告BSR，且未存在所述可用上行资源或者存在的所述可用上行资源未满足触发所述BSR的逻辑信道的LCP mapping限制，触发2-STEP随机接入以请求所述可用上行资源。
  28. 根据权利要求27所述的随机接入方法，其特征在于，触发所述常规BSR包括以下的至少一种：
    网络侧配置了2-STEP随机接入的逻辑信道；
    网络侧配置了禁用UL重传的混合自动重传请求HARQ的逻辑信道；
    网络侧配置了低时延的逻辑信道；其中，所述逻辑信道为业务信道和/或控制信道；
    网络侧配置了允许用户设备使用2-STEP随机接入。
  29. 根据权利要求27或28所述的随机接入方法，其特征在于，所述用户设备响应于所述常规BSR为多个，且多个所述常规BSR触发的随机接入的类型不同，从多个类型中选择一种类型来发起随机接入；或者，
    所述用户设备响应于所述常规BSR为多个，且多个所述常规BSR触发的随机接入的类型不同，从多个所述常规BSR中选择优先级最高的逻辑信道所触发的常规BSR，并以所选择的常规BSR触发的随机接入类型来发起随机接入。
  30. 根据权利要求28所述的随机接入方法，其特征在于，通过媒体访问控制层控制元素MAC CE或者物理下行控制信道PDCCH对用户设备的网络配置进行激活处理或者去激活处理。
  31. 根据权利要求21所述的随机接入方法，其特征在于，所述2-STEP随机接入请求为：
    所述用户设备响应于所述触发源为调度请求SR且未存在调度请求资源，而发送的用于请求可用上行资源的2-STEP随机接入请求。
  32. 根据权利要求31所述的随机接入方法，其特征在于，所述用户设备响应于所述触发源为调度请求SR且未存在调度请求资源，获取所述SR的触发源；且所述用户设备响应于所述SR的触发源为网络侧配置了2-STEP随机接入的逻辑信道所触发的常规缓存状态报告BSR、或者网络侧配置了使用UL重传被禁用的混合自动重传请求HARQ的逻辑信道所触发的常规BSR、或者辅助小区波束失败恢复BFR，触发2-STEP随机接入以请求所述可用上行资源。
  33. 根据权利要求31所述的随机接入方法，其特征在于，所述用户设备响应于未存在所述调度请求资源，获取用户设备的网络配置；且所述用户设备响应于所述网络配置包括允许所述SR触发2-STEP随机接入，触发2-STEP随机接入以获取所述可用上行资源。
  34. 根据权利要求32或33所述的随机接入方法，其特征在于，通过媒体访问控制层控制元素MAC CE或者物理下行控制信道PDCCH对用户设备的网络配置进行激活处理或者去激活处理。
  35. 根据权利要求21所述的随机接入方法，其特征在于，所述2-STEP随机接入请求为所述用户设备发送的用于传输小数据包的2-STEP随机接入请求；
    其中，所述用户设备响应于所述触发源为小数据包传输，获取触发小数据包传输的数据承载DRB；且所述用户设备响应于所述用户设备的网络配置包括所述DRB或者所述DRB对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输所述小数据包。
  36. 根据权利要求35所述的随机接入方法，其特征在于，所述用户设备响应于触发所述小数据包传输的DRB为多个，获取优先级最高的DRB；且所述用户设备响应于所述网络配置包括所述优先级最高的DRB或者所述优先级最高的DRB对应的逻辑信道配置了2-STEP随机接入或者UL重传被禁用的混合自动重传请求HARQ，触发2-STEP随机接入以传输所述小数据包。
  37. 根据权利要求21所述的随机接入方法，其特征在于，所述2-STEP随机接入请求为：
    所述用户设备响应于所述触发源为小数据包传输且所述用户设备的网络配置中包括允许所述用户设备在非激活态下触发2-STEP随机接入，而发送的用于传输小数据包的2-STEP随机接入请求。
  38. 根据权利要求21所述的随机接入方法，其特征在于，所述2-STEP随机接入请求为：
    所述用户设备响应于选择发起随机接入的带宽部分BWP配置有2-STEP随机接入资源而发起的2-STEP随机接入请求。
  39. 根据权利要求21所述的随机接入方法，其特征在于，所述方法还包括：
    接收所述用户设备发起的4-STEP随机接入请求；
    其中，所述4-STEP随机接入请求为，用户设备响应于选择发起随机接入的带宽部分BWP未配置有2-STEP随机接入资源而发起的4-STEP随机接入请求。
  40. 根据权利要求38所述的随机接入方法，其特征在于，所述用户设备响应于所述BWP配置有2-STEP随机接入资源，获取所述BWP的下行路损参考的参考信号接收功率RSRP；且所述用户设备获取触发2-STEP随机接入的触发源对应的RSRP阈值；且所述用户设备响应于所述RSRP大于或者等于所述RSRP阈值，发起2-STEP随机接入。
  41. 一种随机接入装置，其特征在于，包括：
    确定模块，被配置为确定2-STEP随机接入的触发源；
    触发模块，被配置为响应于所述2-STEP随机接入的所述触发源，触发2-STEP随机接入。
  42. 一种随机接入装置，其特征在于，包括：
    接收模块，被配置为接收用户设备发送的2-STEP随机接入请求；
    其中，所述2-STEP随机接入请求为所述用户设备基于触发源发起的。
  43. 一种电子设备，其特征在于，包括：
    至少一个处理器；以及
    与所述至少一个处理器通信连接的存储器；其中，
    所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行权利要求1-40中任一项所述的随机接入方法。
  44. 一种存储有计算机指令的非瞬时计算机可读存储介质，其特征在于，所述计算机指令用于使所述计算机执行权利要求1-40中任一项所述的随机接入方法。
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