WO2021092957A1 - 随机接入问题上报方法、终端设备及存储介质 - Google Patents

随机接入问题上报方法、终端设备及存储介质 Download PDF

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Publication number
WO2021092957A1
WO2021092957A1 PCT/CN2019/119003 CN2019119003W WO2021092957A1 WO 2021092957 A1 WO2021092957 A1 WO 2021092957A1 CN 2019119003 W CN2019119003 W CN 2019119003W WO 2021092957 A1 WO2021092957 A1 WO 2021092957A1
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WIPO (PCT)
Prior art keywords
random access
terminal device
attempt threshold
threshold
report
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PCT/CN2019/119003
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English (en)
French (fr)
Inventor
林雪
尤心
石聪
Original Assignee
Oppo广东移动通信有限公司
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 Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2019/119003 priority Critical patent/WO2021092957A1/zh
Priority to CN201980098376.1A priority patent/CN114097295A/zh
Priority to JP2022526818A priority patent/JP2023506685A/ja
Priority to CN202311351963.1A priority patent/CN117395807A/zh
Priority to EP19952625.2A priority patent/EP3993548A4/en
Publication of WO2021092957A1 publication Critical patent/WO2021092957A1/zh
Priority to US17/668,743 priority patent/US20220167434A1/en

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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
    • 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
    • H04W74/0841—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure with collision treatment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • 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]
    • H04W74/0866—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a dedicated channel for access

Definitions

  • the present invention relates to mobile communication technology, in particular to a method, terminal equipment and storage medium for reporting random access problems.
  • Random access is a basic and important process in the communication system.
  • the purpose of random access includes: establishing uplink synchronization, establishing a unique terminal identification, cell radio network temporary identification (Cell Radio Network Temporary Identifier, C-RNTI), request
  • C-RNTI Cell Radio Network Temporary Identifier
  • the network allocates uplink resources to the terminal. Therefore, random access is not only used for initial access, but can also be used for new cell access during handover, access after radio link failure, and resumption of uplink synchronization when there is uplink/downlink data transmission.
  • the random access process includes the first type of random access and the second type of random access.
  • the first type of random access the terminal device and the network device need to perform 4 information exchanges; therefore, the first type of random access is also called 4-steps RACH.
  • the second type of random access two information exchanges are required between the terminal device and the network device. Therefore, the second type of random access is also called 2-steps RACH.
  • Two-step random access is currently in the process of standardization discussion, which can reduce time delay and signaling overhead.
  • the uplink bandwidth of the terminal equipment only supports two-step random access and supports two-step random access and four-step random access at the same time. Therefore, how to control random access when random access fails Problem reporting becomes a technical problem to be solved.
  • the embodiment of the present invention provides a random access problem reporting method, terminal device and storage medium, which can control the random access problem reporting in the case of random access failure when the uplink bandwidth part of the terminal device supports random access .
  • an embodiment of the present invention provides a method for reporting a random access problem, including:
  • the terminal equipment determines the random access attempt threshold according to the random access type supported by the uplink bandwidth part;
  • the terminal device determines whether to report the random access problem according to the relationship between the number of sending random access requests and the random access attempt threshold.
  • an embodiment of the present invention provides a terminal device, including:
  • the selection unit is configured to determine the random access attempt threshold according to the random access type supported by the uplink bandwidth part;
  • the determining unit is configured to determine whether to report the random access problem according to the relationship between the number of random access requests sent and the random access attempt threshold when the random access of the terminal device fails.
  • an embodiment of the present invention provides a terminal device, including a processor and a memory for storing a computer program that can run on the processor, wherein the processor is used to execute the above-mentioned terminal when the computer program is running. Steps of the method for reporting random access problems performed by the device.
  • an embodiment of the present invention provides a storage medium storing an executable program, and when the executable program is executed by a processor, the random access problem reporting method performed by the terminal device described above is implemented.
  • the random access problem reporting method includes: the terminal device determines the random access attempt threshold according to the random access type supported by the uplink bandwidth part; when the terminal device fails random access, the terminal device The relationship between the number of random access requests sent and the random access attempt threshold is determined to determine whether to report the random access problem; thus, it is possible to control the random access failure in the case that the uplink bandwidth part of the terminal device supports random access Report the random access problem under the circumstances.
  • FIG. 1 is a schematic diagram of an optional processing flow of random access according to the present invention
  • FIG. 2 is a schematic diagram of an optional processing flow of random access according to the present invention.
  • FIG. 3 is a schematic diagram of an optional processing flow of random access according to the present invention.
  • FIG. 4 is a schematic diagram of an optional processing flow of random access according to the present invention.
  • FIG. 5 is a schematic diagram of an optional composition structure of a communication system provided by an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of an optional processing flow of a method for reporting a random access problem according to an embodiment of the present invention
  • FIG. 7 is a schematic diagram of an optional processing flow of a method for reporting a random access problem according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of an optional processing flow of a method for reporting a random access problem according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of an optional timing relationship provided by an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of an optional timing relationship provided by an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of an optional timing relationship provided by an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of an optional structure of a terminal device according to an embodiment of the present invention.
  • FIG. 13 is a schematic diagram of an optional structure of an electronic device provided by an embodiment of the present invention.
  • the terminal device After the cell search process, the terminal device has achieved downlink synchronization with the cell, and therefore, the terminal device can receive downlink data. However, the terminal equipment can only perform uplink transmission if it has achieved uplink synchronization with the cell.
  • the terminal device establishes a connection with the cell and obtains uplink synchronization through a random access procedure (Random Access Procedure).
  • the main purpose of random access (1) Obtain uplink synchronization; (2) Assign a unique C-RNTI to the terminal equipment.
  • the random access process can be triggered by the following events:
  • RRC_IDLE state the radio resource connection control (Radio Resource Control, RRC) to the connected state (i.e. RRC_CONNECTED state); among them, in the RRC_IDLE state, it is not established RRC connection, in the RRC_CONNECTED state, an RRC connection is established;
  • Radio Resource Control (RRC) connection re-establishment procedure RRC Connection Re-establishment procedure: so that the UE can re-establish the wireless connection after the radio link failure (Radio Link Failure);
  • Handover UE needs to establish uplink synchronization with the new cell
  • downlink (Down Link, DL) data arrives, and at this time, the uplink (Up Link, UL) is in an out-of-synchronization state;
  • UL data arrives.
  • the UL is in an out-of-synchronization state or there is no Physical Uplink Control Channel (PUCCH) resource for sending a Scheduling Request (SR);
  • PUCCH Physical Uplink Control Channel
  • timing advance timing advance
  • the UE transitions from the connected inactive state (that is, the RRC_INACTIVE state) to the RRC_CONNECTED state;
  • the random access process includes the first type of random access and the second type of random access.
  • the first type of random access the terminal device and the network device need to perform 4 information exchanges; therefore, the first type of random access is also called four-step random access.
  • the second type of random access two information exchanges are required between the terminal device and the network device. Therefore, the second type of random access is also called two-step random access.
  • the first type of random access supports contention-based random access methods and non-competition-based random access methods.
  • the processing flow of contention-based random access includes the following four steps:
  • the terminal device sends a random access preamble to the network device through message 1 (message 1, Msg1).
  • the terminal device selects the physical random access channel (PRACH) time domain resource, and sends the selected random access preamble (Preamble) on the selected PRACH time domain resource; the network device can estimate the uplink timing and the uplink timing based on the received Preamble.
  • the preamble is sent in a random access occasion (RACH occasion, RO) that is configured by the network device.
  • the network device sends random access related parameters to the terminal device through the broadcast system information block (System Information Block, SIB) 1, where the RACH common configuration (RACH-ConfigCommon) information element (Information Element, IE) is used to synchronize the signal block (
  • the reference signal receiving power (Reference Signal Receiving Power, RSRP) threshold (rsrp-ThresholdSSB) of Synchronization Signal Block (SSB) is used for SSB selection of the terminal device.
  • the terminal device compares the RSRP measurement results under each SSB with rsrp-ThresholdSSB, and selects the SSB with the RSRP measurement result higher than rsrp-ThresholdSSB for access.
  • each SSB corresponds to a set of Preamble resources and RO resources.
  • the terminal device randomly selects from the selected SSB for contention-based random access resources, and sets the preamble index (PREAMBLE_INDEX) as the selected random access preamble.
  • the network device sends a message 2 (message 2, Msg2) to the terminal device.
  • the network device After detecting that a terminal device sends a Preamble, the network device sends a random access response (Random Access Response, RAR) message to the terminal device through Msg2 to inform the terminal device of the uplink resource information that can be used when sending Msg3, and allocate temporary resources to the terminal device.
  • RAR Random Access Response
  • Radio Network Tempory Identity (RNTI) which provides time advance command for terminal equipment.
  • RA-RNTI Random Access Radio Network Temporary Identifier
  • PDCCH Physical Downlink Control Channel
  • BI backoff indicator
  • the MAC subheader that only has the random access preamble identifier is the RAPID MAC subheader (that is, the confirmation of the SI request, which can exist separately);
  • the MAC subheader with BI consists of five header fields: E(Exension)/T(Type)/R(Reserved)/R/BI, and only the MAC subheader with RAPID and MAC with RAPID RAR MAC
  • the subheader is composed of three header fields: E/T/RAPID.
  • R is a reserved field with a value of 0 or 1; E indicates whether the current MAC subPDU is the last one. When the value of E is 0, it indicates that the current MAC subPDU is the last one.
  • E When the value of E is 1, it indicates There is at least one MAC subPDU after the current MAC subPDU; when T is 0, it indicates the BI MAC header, when T is 1, it indicates the RAPID MAC header; BI indicates the current cell overload situation; RAPID indicates the transmitted random access preamble.
  • the terminal device If the terminal device successfully receives the RA-RNTI scrambled PDCCH corresponding to the RO resource that sends the Preamble, and the RAR contains a MAC subPDU carrying the RAPID corresponding to the PREAMBLE_INDEX selected in S101, the RAR reception is successful and the terminal can decode Obtain a timing advance command (Timing Advance Command, TAC), an uplink grant (UL Grant), and a temporary cell radio network temporary identifier (Temporary C-RNTI, TC-RNTI).
  • TAC Timing Advance Command
  • UL Grant uplink grant
  • Temporal C-RNTI Temporal C-RNTI
  • the terminal device needs to retransmit Msg1. If the number of preamble transmissions exceeds the preambleTransMax configured by the network, the terminal device upwards The layer reports random access problems.
  • S103 The terminal device sends Msg3 to the network device.
  • the terminal device If the terminal device successfully receives the RAR message, the terminal sends Msg3, which is the PUSCH scheduled by the RAR message.
  • Msg3 is mainly used to notify the network equipment of what event triggered the random access process. For example, if it is an initial access random process, Msg3 will carry the UE ID and establishment cause; if it is RRC reestablishment, Msg3 will carry the connected UE identifier and establishment cause. Msg3 needs to contain the unique identifier of the UE, which is used for contention resolution in S104.
  • the UE will carry its own unique identifier in Msg3: C-RNTI or a UE identifier (S-TMSI or a random number) from the core network.
  • C-RNTI or a UE identifier (S-TMSI or a random number) from the core network.
  • S-TMSI UE identifier
  • the MAC entity of the terminal will start the following operations:
  • Monitor C-RNTI or TC-RNTIPDCCH during the operation of ra-ContentionResolutionTimer that is, monitor the contention resolution message sent by the network.
  • Step S104 The network device sends Msg4 to the terminal device.
  • Msg4 includes contention resolution (contention resolution) messages, and at the same time allocates uplink transmission resources for terminal devices.
  • the network device will carry the unique mark in Msg4 to specify the winning terminal device. Other terminal devices that did not win in the contention resolution will re-initiate random access.
  • the PDCCH of Msg4 uses C-RNTI or TC-RNTI for scrambling.
  • the PDCCH scrambled by the C-RNTI during the operation of ra-ContentionResolutionTimer is considered to be successful; for the terminal equipment in the non-RRC_CONNECTED state, the TC-RNTI plus is received during the operation of the ra-ContentionResolutionTimer.
  • the scrambled PDCCH when the CRID contained in the MAC PDU corresponding to the successfully decoded Msg4 matches the CCCH SDU sent by the Msg3, it is considered that the contention resolution is successful and the random access process of the terminal device is successful.
  • ra-ContentionResolutionTimer timeout or contention resolution failure that is, random access failure
  • the terminal device needs to retransmit Msg1. If the number of preamble transmissions exceeds preambleTransMax, the terminal device reports to the upper layer Random access problem.
  • the processing flow of the non-competition-based random access method includes the following three steps:
  • the network device sends the allocated random access preamble to the terminal device.
  • S202 The terminal device sends a random access preamble to the network device through Msg1.
  • PRACH time domain resources and preamble can be specified by network equipment.
  • S203 The network device sends Msg2 to the terminal device.
  • the network device After the network device detects that a terminal device sends a Preamble, it sends a RAR to the terminal device through Msg2.
  • the terminal device After sending the Msg1, the terminal device opens a random access response time window, and monitors the RA-RNTI scrambled PDCCH within the random access response time window.
  • the random access response please refer to the description in S102.
  • the random access process ends.
  • the second type of random access can increase the delay and reduce the signaling overhead at the same time.
  • the processing flow of the second type of random access is shown in Figure 3, including:
  • S301 The terminal device sends MsgA to the network device.
  • MsgA includes preamble and uplink data part (for example, carried by PUSCH).
  • the preamble is the content of the first type of random access Msg1;
  • the uplink data part carries the identification information of the UE and/or the reason for the RRC request, and is the content of the first type of random access Msg3.
  • Step S302 The network device sends MsgB to the terminal device.
  • MsgB contains contention resolution information and TAC, C-RNTI allocation information, etc.
  • MsgB is equivalent to Msg2 and Msg4 including the first type of random access.
  • the terminal device executes S401, sends Msg3 to the network device, and monitors Msg4 in S402. If it is transmitted in Msg3 After the contention resolution is unsuccessful, the terminal device continues to perform S301 to perform MsgA transmission.
  • the random access type includes the following two situations:
  • the embodiments of the present invention provide a method for reporting random access problems.
  • the information processing method of the embodiments of the present invention can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE frequency division Duplex (Frequency Division Duplex, FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), 5G system or future communication system, etc.
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD LTE Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • 5G system or future communication system etc.
  • the communication system 500 to which the embodiment of the present invention is applied is as shown in FIG. 5.
  • the communication system 500 may include a network device 510, and the network device 510 may be a device that communicates with a terminal device 520 (or called a communication terminal or terminal).
  • the network device 510 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area.
  • the network device 510 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, a base station (gNB) in an NR/5G system, or a cloud radio access network (Cloud Radio Access Network, CRAN) wireless controller.
  • Evolutional Node B, eNB or eNodeB evolved base station
  • gNB base station
  • CRAN Cloud Radio Access Network
  • the communication system 500 may also include: a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or a mobile switching center, a relay station, an access point, an in-vehicle device, a wearable device, a hub, a switch, and a bridge , Routers, network-side equipment in the 5G network, or network equipment in the future evolution of the Public Land Mobile Network (PLMN), etc.
  • CRAN Cloud Radio Access Network
  • PLMN Public Land Mobile Network
  • the communication system 500 further includes at least one terminal device 520 located within the coverage area of the at least one network device 510.
  • the "terminal equipment” used here includes but is not limited to connection via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, and direct cable connection ; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and/or another terminal device that is set to receive/send communication signals; and/or Internet of Things (IoT) equipment.
  • PSTN Public Switched Telephone Networks
  • DSL Digital Subscriber Line
  • WLAN wireless local area networks
  • Digital TV networks such as DVB-H networks
  • satellite networks such as DVB-H networks
  • AM- FM broadcast transmitter AM- FM broadcast transmitter
  • IoT Internet of Things
  • a terminal device set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a “wireless terminal” or a “mobile terminal”.
  • mobile terminals include, but are not limited to, satellite or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio telephone transceivers Electronic device.
  • PCS Personal Communications System
  • GPS Global Positioning System
  • Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in the future evolution of PLMN, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.
  • NR New Radio
  • FIG. 5 exemplarily shows one network device and two terminal devices.
  • the communication system 500 may include multiple terminal devices and multiple network devices, and the coverage of each network device may include other numbers This is not limited in the embodiment of the present invention.
  • the communication system 500 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present invention.
  • An optional processing procedure of the random access problem reporting method provided by the embodiment of the present invention, as shown in FIG. 6, includes the following steps:
  • the terminal device determines a random access attempt threshold according to the random access type supported by the uplink bandwidth part.
  • the type of random access supported by the uplink bandwidth part is the type of random access corresponding to the resource used for random access in the uplink bandwidth part.
  • the type of random access corresponding to the resource used for random access in the upper bandwidth part is case 1, it only corresponds to two-step random access.
  • the uplink bandwidth part is only configured with two-step random access resources.
  • the bandwidth part only supports two-step random access.
  • the random access attempt threshold includes: the first attempt threshold, and the first attempt threshold is used to determine whether to report the random access problem.
  • the first attempt threshold may also be referred to as the maximum number of random access attempts in the first two steps.
  • the first attempt threshold is identified by N1.
  • the type of random access corresponding to the resource used for random access in the upper bandwidth part is case 2, including two-step random access and four-step random access as an example, the uplink bandwidth part is configured with two-step random access resources at the same time As with the resources of four-step random access, the uplink bandwidth part of the terminal device supports both two-step random access and four-step random access.
  • the random access attempt threshold includes: a third attempt threshold, and the third attempt threshold is used to determine whether to report the random access problem.
  • the third attempt threshold may also be referred to as the maximum number of attempts of four-step random access.
  • the current uplink bandwidth part When the current uplink bandwidth part is configured with two-step random access resources and four-step random access resources at the same time, the current uplink bandwidth part can perform two-step random access and four-step random access.
  • K is used to identify the third attempt threshold.
  • N1 is less than or equal to K.
  • the terminal device includes one or more uplink bandwidth parts used to perform random access procedures. At a moment, only one uplink bandwidth part is activated to perform the random access process.
  • S602 When the terminal device fails in random access, the terminal device determines whether to report the random access problem according to the relationship between the number of times of sending random access requests and the random access attempt threshold.
  • the sent random access request when the terminal performs two-step random access, the sent random access request is MsgA; when the terminal performs four-step random access, the sent random access request is Msg1.
  • S602 includes:
  • S602a When the random access of the terminal device fails, determine whether to report the random access problem according to the relationship between the number of times the random access request is sent and the first attempt threshold.
  • determining whether to report the random access problem including: determining whether to proceed according to the relationship between the number of random access requests sent and the first attempt threshold Random access issues are reported.
  • the first attempt threshold is configured by the network device.
  • the network device configures the first attempt threshold in the two-step random access parameter field.
  • the scheme for determining whether to report the random access problem according to the relationship between the number of random access requests sent and the first attempt threshold includes one of the following schemes:
  • Solution 1 When the number of transmissions reaches the first attempt threshold, it is determined to report the random access problem; when the number of transmissions does not reach the first attempt threshold, it is determined not to report the random access problem.
  • Solution 2 When the number of transmissions reaches the first attempt threshold and the number of transmissions does not reach the random access problem reporting threshold, it is determined not to report the random access problem; when the number of transmissions reaches the first attempt threshold And the number of transmissions reaches the random access problem reporting threshold, and it is determined to report the random access problem; the random access problem reporting threshold is greater than the first attempt threshold.
  • Solution 3 When the number of transmissions reaches the first attempt threshold and the problem reporting timer does not expire, it is determined not to report the random access problem; when the number of transmissions reaches the first attempt threshold and the problem reporting timing When the device times out, it is determined to report the random access problem.
  • the terminal device Taking the relationship between the number of sending random access requests and the first attempt threshold to determine whether to report the random access problem is the scheme 1, as an example, when the number of sending random access requests reaches the first attempt threshold but random access If it still fails, the terminal device reports the random access problem. When the number of random access requests sent by the terminal device when the random access is successful does not exceed N1, the terminal device does not report the random access problem.
  • the first attempt threshold is greater than a second attempt threshold
  • the second attempt threshold is used by the terminal device to configure two-step random access resources and four-step random access in the uplink bandwidth portion of the terminal device.
  • the second attempt threshold may also be referred to as the second two-step maximum random access attempts.
  • the second attempt threshold is identified by N2.
  • N2 is less than K.
  • the second attempt threshold is configured by the network device.
  • the network device configures the second attempt threshold in the two-step random access parameter field.
  • scheme 2 Taking the relationship between the number of times of sending random access requests and the first attempt threshold to determine whether to report the random access problem is adopted as scheme 2, as an example, when the number of times the terminal device sends the random access request reaches the random access Enter the problem reporting threshold, and random access fails, it is determined to report the random access problem.
  • the random access problem reporting threshold is introduced.
  • the two-step random access will continue to be tried until the number of random access requests reaches the random access. If the random access is still unsuccessful, then the random access problem is reported.
  • the random access problem reporting threshold is identified by M.
  • M the number of random access requests sent by the terminal device when the random access is successful.
  • the random access problem reporting threshold is configured by a network device.
  • the network device configures the random access problem reporting threshold in the two-step random access parameter field. Among them, N1 is less than M.
  • a problem reporting timer is introduced.
  • the two-step random access will continue to be tried until the problem reporting timer expires. If it is unsuccessful, the random access problem is reported.
  • the terminal device succeeds in random access before the problem reporting timer expires, the terminal device does not report the random access problem.
  • the start timing of the problem reporting timer includes:
  • the terminal device starts the problem reporting timer in the case of sending the MsgA for the first time.
  • the duration of the problem reporting timer is greater than the duration required to send N1 random access requests.
  • the terminal device starts the problem reporting timer in the case that the terminal device transmits MsgA N1 times and the random access fails.
  • the duration of the problem reporting timer is configured by the network device.
  • the network device configures the duration of the problem reporting timer in the two-step random access parameter field.
  • S602 includes:
  • S602b When the random access of the terminal device fails, determine whether to report the random access problem according to the relationship between the number of times the random access request is sent and the third attempt threshold.
  • the determining whether to report the random access problem according to the relationship between the number of random access requests sent and the random access threshold includes: determining whether to report the random access problem according to the relationship between the number of sending random access requests and the third attempt threshold Report the random access problem.
  • the scheme for determining whether to report the random access problem according to the relationship between the number of random access requests and the third attempt threshold includes: when the number of transmissions reaches the third attempt threshold, determining to proceed Reporting the random access problem; when the number of transmissions does not reach the third attempt threshold, it is determined not to report the random access problem.
  • the two-step random access resource and the four-step random access resource are configured at the same time in the uplink bandwidth part of the terminal device, according to the relationship between the number of sending random access requests and the third attempt threshold, Determine whether to report random access problems.
  • the terminal device reports the random access problem.
  • the terminal device does not report the random access problem.
  • the third attempt threshold is configured by the network device.
  • the network device configures the third attempt threshold in the four-step random access parameter field.
  • the method further includes: when the random access request sent by the terminal device This is message A, the number of times of sending reaches the second attempt threshold, and random access fails, and the terminal device falls back from a two-step random access process to a four-step random access process.
  • the terminal device rolls back from the two-step random access process to the four-step random access process, after receiving MsgB, it sends Msg3 to the network device.
  • the terminal device When the number of times that the terminal device sends MsgA reaches N2 and the random access fails, the terminal device sends Msg3, and the two-step random access falls back to the four-step random access to continue the random access attempt. If random access is unsuccessful after Msg3 transmission, the terminal device continues to perform MsgA transmission to perform two-step random access.
  • the uplink bandwidth part according to the type supported by the uplink bandwidth part, it only supports two-step random access, that is, only two-step random access resources are configured, or supports both two-step random access and four-step random access, that is, two-step random access is configured simultaneously. Random access resources and four-step random access resources are used to select the random access attempt threshold, and according to the selected random access attempt threshold, the reporting of random access problems in the case of random access failure is controlled.
  • the parameters configured based on the random access type corresponding to the resources used for random access include:
  • Configuration method 1 Two-step random access resources and four-step random access resources are configured on the UL BWP at the same time.
  • the network equipment configures K in the four-step random access parameter field and configures it in the two-step random access parameter field. N2.
  • Configuration method 2 When the UL BWP is only configured with two-step random access resources, the network device configures N2 in the two-step random access parameter field.
  • the scheme for determining whether to perform random access reporting includes:
  • Solution C Introduce a problem report timer in the two-step random access configuration.
  • the problem report timer is started after the initial transmission of MsgA. After N1 two-step random access is tried, the UE continues to perform two-step random access until the problem The reporting timer expires, and if the access is still not successful, the random access problem is reported.
  • Example 1 Solution A when UL BWP only configures two-step random access resources
  • the network device configures the first attempt threshold N1 for the UE.
  • the terminal device attempts a two-step random access on the current UL BWP.
  • the UE reports the random access problem, as shown in Figure 9.
  • Example 2 Solution B when UL BWP only configures resources for two-step random access
  • the network device configures the first attempt threshold N1 and the random access problem reporting threshold M for the UE.
  • the UE tries two-step random access on the current UL BWP.
  • N1 the number of MsgA transmissions exceeds N1
  • M the number of MsgA transmissions exceeds M
  • the UE reports the random access problem, as shown in Figure 10. .
  • Example 3 Solution C when UL BWP only configures two-step random access resources
  • the network device configures the first attempt threshold N1 and the problem reporting timer for the UE.
  • the UE tries two-step random access on the current UL BWP.
  • the UE continues to perform two-step random access until the timer expires. If the access is still not successful, the UE reports the random access problem, such as As shown in Figure 11, after the Xth transmission of MsgA, the problem reporting timer expires, and then random access problem reporting is performed.
  • Example 4 UL BWP configures two-step random access resources and four-step random access resources at the same time
  • the UE When both two-step random access and four-step random access resources are configured on the UL BWP, the UE needs to select the random access type. Assuming that the RSRP measured by the UE is higher than the configured threshold, the UE enters the two-step random access Process. If the UE fails to access successfully after N2 two-step random access attempts, the UE will fall back to four-step random access and continue the access attempt. When the number of preamble transmissions exceeds K and random access fails, the UE reports the random access problem. Among them, N2 is configured in the two-step random access parameter field, K is configured in the four-step random access parameter field, and the value of N1 is less than K.
  • the random access problem report needs to occur in N2 two-step random access. After the random access attempt fails. If the value of N2 is small, the failure of the two-step random access may be caused by insufficient power increase. At this time, reporting the random access problem may cause unnecessary access delay.
  • the UE When the UL BWP is configured with only two-step random access resources, and N1 is greater than N2, the UE fails to access successfully after N1 two-step random access attempts, and then the random access problem is reported. Due to the existence of fallback, the setting of N1 is usually small, and N2 greater than N1 prevents the UE from reporting the random access problem too early due to insufficient power rise, thereby avoiding the introduction of unnecessary access delay.
  • N1 is equal to N2, and the UE fails to access successfully after N1 two-step random access attempts, and continues to perform random access attempts until M twice After the random access attempt is still unsuccessful, the random access problem is reported.
  • an embodiment of the present invention also provides a terminal device.
  • the composition structure of the terminal device is shown in FIG. 12, and the terminal device 1200 includes:
  • the selecting unit 1201 is configured to determine a random access attempt threshold according to the random access type supported by the uplink bandwidth part of the terminal device;
  • the determining unit 1202 is configured to determine whether to report the random access problem according to the relationship between the number of random access requests sent and the random access attempt threshold when the terminal device fails random access.
  • the determining unit 1202 is further configured to:
  • the uplink bandwidth part of the terminal device only supports two-step random access, it is determined whether to report the random access problem according to the relationship between the number of sending random access requests and the first attempt threshold.
  • the determining unit 1202 is further configured to:
  • the first attempt threshold is greater than the second attempt threshold.
  • the determining unit 1202 is further configured to:
  • the random access problem reporting threshold is greater than the first attempt threshold .
  • the first attempt threshold is equal to the second attempt threshold.
  • the random access problem reporting threshold is configured by a network device.
  • the determining unit 1202 is further configured to:
  • the start timing of the problem reporting timer includes:
  • the duration of the problem reporting timer is configured by the network device.
  • the first attempt threshold is configured by a network device.
  • the determining unit 1202 is further configured to:
  • the uplink bandwidth part of the terminal device supports both two-step random access and four-step random access, it is determined whether to report the random access problem according to the relationship between the number of random access requests sent and the third attempt threshold.
  • the determining unit 1202 is further configured to:
  • the terminal device 1200 further includes:
  • the fallback unit is configured to fall back from the two-step random access process to the four-step random access when the random access request sent by the terminal device is message A, the number of transmissions reaches the second attempt threshold and the random access fails. ⁇ Into the process.
  • An embodiment of the present invention also provides a terminal device, including a processor and a memory for storing a computer program that can run on the processor, where the processor is used to execute the above-mentioned terminal device when the computer program is running. The steps of the random access problem method.
  • the electronic device 1300 includes: at least one processor 1301, a memory 1302, and at least one network interface 1304.
  • the various components in the electronic device 1300 are coupled together through the bus system 1305.
  • the bus system 1305 is used to implement connection and communication between these components.
  • the bus system 1305 also includes a power bus, a control bus, and a status signal bus.
  • various buses are marked as the bus system 1305 in FIG. 13.
  • the memory 1302 may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory.
  • the non-volatile memory can be ROM, Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), and electrically erasable and programmable read-only memory (EPROM).
  • Programmable read-only memory EEPROM, Electrically Erasable Programmable Read-Only Memory
  • magnetic random access memory FRAM, ferromagnetic random access memory
  • flash memory Flash Memory
  • magnetic surface memory optical disk, or CD-ROM (CD) -ROM, Compact Disc Read-Only Memory
  • Magnetic surface memory can be disk storage or tape storage.
  • the volatile memory may be a random access memory (RAM, Random Access Memory), which is used as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • SSRAM synchronous static random access memory
  • Synchronous Static Random Access Memory Synchronous Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • SDRAM Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM synchronous connection dynamic random access memory
  • DRRAM Direct Rambus Random Access Memory
  • the memory 1302 described in the embodiment of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.
  • the memory 1302 in the embodiment of the present invention is used to store various types of data to support the operation of the electronic device 1300. Examples of these data include: any computer program used to operate on the electronic device 1300, such as an application program 13021.
  • the program for implementing the method of the embodiment of the present invention may be included in the application program 13021.
  • the method disclosed in the foregoing embodiment of the present invention may be applied to the processor 1301 or implemented by the processor 1301.
  • the processor 1301 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 1301 or instructions in the form of software.
  • the aforementioned processor 1301 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like.
  • the processor 1301 may implement or execute various methods, steps, and logical block diagrams disclosed in the embodiments of the present invention.
  • the general-purpose processor may be a microprocessor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a storage medium, and the storage medium is located in the memory 1302.
  • the processor 1301 reads the information in the memory 1302, and completes the steps of the foregoing method in combination with its hardware.
  • the electronic device 1300 may be used by one or more Application Specific Integrated Circuits (ASIC, Application Specific Integrated Circuit), DSP, Programmable Logic Device (PLD, Programmable Logic Device), and Complex Programmable Logic Device (CPLD). , Complex Programmable Logic Device), FPGA, general-purpose processor, controller, MCU, MPU, or other electronic components to implement the foregoing method.
  • ASIC Application Specific Integrated Circuit
  • DSP Digital Signal processor
  • PLD Programmable Logic Device
  • CPLD Complex Programmable Logic Device
  • FPGA Complex Programmable Logic Device
  • controller MCU
  • MPU MPU
  • the embodiment of the present invention also provides a storage medium for storing computer programs.
  • the storage medium can be applied to the terminal device in the embodiment of the present invention, and the computer program causes the computer to execute the corresponding process in each method of the embodiment of the present invention.
  • the computer program causes the computer to execute the corresponding process in each method of the embodiment of the present invention.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

Abstract

本发明公开了一种随机接入问题上报方法，包括：终端设备根据上行带宽部分支持的随机接入类型，确定随机接入尝试阈值；当所述终端设备随机接入失败，所述终端设备根据随机接入请求的发送次数与所述随机接入尝试阈值的关系，确定是否进行随机接入问题上报。本发明还公开了一种终端设备及存储介质。

Description

随机接入问题上报方法、终端设备及存储介质 技术领域
本发明涉及移动通信技术，尤其涉及一种随机接入问题上报方法、终端设备及存储介质。
背景技术
随机接入是通信系统中一个基本且重要的过程，随机接入的目的包括：建立上行链路同步、建立一个唯一终端标识小区无线网络临时标识(Cell Radio Network Temporary Identifier，C-RNTI)、请求网络分配给终端上行链路资源。因此，随机接入不仅用于初始化接入，而且还可以用于切换过程中的新小区接入、无线链路失败后的接入、在有上/下行数据传输时重新恢复上行同步等。
在随机接入过程中，包括第一类随机接入和第二类随机接入。其中，第一类随机接入中，终端设备与网络设备之间需要执行4次信息交互；因此，第一类随机接入也称为四步随机接入(4-steps RACH)。第二类随机接入中，终端设备与网络设备之间需要执行2次信息交互，因此，第二类随机接入也称为两步随机接入(2-steps RACH)。
两步随机接入目前正处于标准化讨论进程中，其能够降低时延的同时，减小信令开销。而终端设备的上行带宽部分存在仅支持两步随机接入的情况和同时支持两步随机接入和四步随机接入的情况下，因此，如何控制随机接入失败的情况下的随机接入问题上报成为待解决的技术问题。
发明内容
本发明实施例提供一种随机接入问题上报方法、终端设备及存储介质，能够针对终端设备的上行带宽部分支持随机接入的情况下，控制随机接入失败的情况下的随机接入问题上报。
第一方面，本发明实施例提供一种随机接入问题上报方法，包括：
终端设备根据上行带宽部分支持的随机接入类型，确定随机接入尝试阈值；
当所述终端设备随机接入失败，所述终端设备根据随机接入请求的发送次数与所述随机接入尝试阈值的关系，确定是否进行随机接入问题上报。
第二方面，本发明实施例提供一种终端设备，包括：
选择单元，配置为根据上行带宽部分支持的随机接入类型，确定随机接入尝试阈值；
确定单元，配置为当所述终端设备随机接入失败，根据随机接入请求的发送次数与所述随机接入尝试阈值的关系，确定是否进行随机接入问题上报。
第三方面，本发明实施例提供一种终端设备，包括处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行上述终端设备执行的随机接入问题上报方法的步骤。
第四方面，本发明实施例提供一种存储介质，存储有可执行程序，所述可执行程序被处理器执行时，实现上述终端设备执行的随机接入问题上报方法。
本发明实施例提供的随机接入问题上报方法，包括：终端设备根据上行带宽部分 支持的随机接入类型，确定随机接入尝试阈值；当所述终端设备随机接入失败，所述终端设备根据随机接入请求的发送次数与所述随机接入尝试阈值的关系，确定是否进行随机接入问题上报；从而能够针对终端设备的上行带宽部分支持随机接入的情况下，控制随机接入失败的情况下的随机接入问题上报。
附图说明
图1为本发明随机接入的一种可选的处理流程示意图；
图2为本发明随机接入的一种可选的处理流程示意图；
图3为本发明随机接入的一种可选的处理流程示意图；
图4为本发明随机接入的一种可选的处理流程示意图；
图5为本发明实施例提供的通信系统的一种可选的组成结构示意图；
图6为本发明实施例提供的随机接入问题上报方法的一种可选的处理流程示意图；
图7为本发明实施例提供的随机接入问题上报方法的一种可选的处理流程示意图；
图8为本发明实施例提供的随机接入问题上报方法的一种可选的处理流程示意图；
图9为本发明实施例提供的一种可选地时序关系示意图；
图10为本发明实施例提供的一种可选地时序关系示意图；
图11为本发明实施例提供的一种可选地时序关系示意图；
图12为本发明实施例提供的终端设备的一个可选的结构示意图；
图13是本发明实施例提供的电子设备的一个可选的结构示意图。
具体实施方式
为了能够更加详尽地了解本发明实施例的特点和技术内容，下面结合附图对本发明实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本发明实施例。
在对本发明实施例提供的随机接入问题上报方法进行详细说明之前，先对随机接入过程进行简要说明。
在小区搜索过程之后，终端设备已经与小区取得了下行同步，因此，终端设备能够接收下行数据。但终端设备只有与小区取得上行同步，才能进行上行传输。终端设备通过随机接入过程(Random Access Procedure)与小区建立连接并取得上行同步。
随机接入的主要目的：(1)获得上行同步；(2)为终端设备分配一个唯一的C-RNTI。
随机接入过程可由如下事件触发：
1、UE初始接入时建立无线连接：UE从无线资源连控制(Radio Resource Control，RRC)的空闲状态(即RRC_IDLE状态)到连接状态(即RRC_CONNECTED状态)；其中，在RRC_IDLE状态下，未建立RRC连接，在RRC_CONNECTED状态下，建立了RRC连接；
2、无线资源连控制(Radio Resource Control，RRC)连接重建过程(RRC Connection Re-establishment procedure)：以便UE在无线链路失败(Radio Link Failure)后重建无线连接；
3、切换：UE需要与新的小区建立上行同步；
4、RRC_CONNECTED状态下，下行链路(Down Link，DL)数据到达，此时，上行链路(Up Link，UL)处于失步状态；
5、RRC_CONNECTED状态下，UL数据到达，此时UL处于失步状态或者没有用于发送调度请求(Scheduling Request，SR)的物理上行控制信道(Physical Uplink Control  Channel，PUCCH)资源；
6、RRC_CONNECTED状态下，为了定位终端设备，需要定时提前(timing advance)；
7、SR失败；
8、来自RRC的同步重配置请求；
9、UE从连接非激活状态(即RRC_INACTIVE状态)转换为RRC_CONNECTED状态；
10、在辅服务小区(Secondary Cell，SCell)添加过程中建立时间校准；
11、请求其他系统消息(System Information，SI)；
12、波束失败恢复。
随机接入过程包括第一类随机接入和第二类随机接入。其中，第一类随机接入中，终端设备与网络设备之间需要执行4次信息交互；因此，第一类随机接入也称为四步随机接入。第二类随机接入中，终端设备与网络设备之间需要执行2次信息交互，因此，第二类随机接入也称为两步随机接入。
第一类随机接入支持基于竞争的随机接入方式和基于非竞争的随机接入方式。
基于竞争的随机接入方式的处理流程，如图1所示，包括如下四个步骤：
S101，终端设备通过消息1(message 1，Msg1)向网络设备发送随机接入前导。
终端设备选择物理随机接入信道(Physical Random Access Channel，PRACH)时域资源，在选择的PRACH时域资源上发送选择的随机接入前导(Preamble)；网络设备基于接收的Preamble能够估算上行Timing以及终端设备传输消息3(message 3，Msg3)所需要的上行授权的大小。其中，Preamble是在网络设备配置的周期性出现的随机接入时机(RACH occasion，RO)中发送的。
网络设备通过广播系统信息块(System Information Block，SIB)1向终端设备发送随机接入相关参数，其中，RACH公共配置(RACH-ConfigCommon)信息元素(Information Element，IE)中用于同步信号块(Synchronization Signal Block，SSB)的参考信号接收功率(Reference Signal Receiving Power，RSRP)阈值(rsrp-ThresholdSSB)用于终端设备的SSB选择。终端设备将每个SSB下的RSRP测量结果与rsrp-ThresholdSSB进行对比，选择RSRP测量结果高于rsrp-ThresholdSSB的SSB进行接入，若没有RSRP测量结果高于rsrp-ThresholdSSB的SSB，则从全部SSB中随机选择一个SSB进行接入。每个SSB对应一组Preamble资源和RO资源，终端设备从选定的SSB中用于基于竞争的随机接入资源中进行随机选择，将前导索引(PREAMBLE_INDEX)设置为选定的随机接入Preamble。
S102，网络设备向终端设备发送消息2(message 2，Msg2)。
网络设备检测到有终端设备发送Preamble之后，通过Msg2向终端设备发送随机接入响应(Random Access Response，RAR)消息，以告知终端设备在发送Msg3时可以使用的上行资源信息，为终端设备分配临时的无线网络临时标识(Radio Network Tempory Identity，RNTI)，为终端设备提供time advance command等。
终端设备发送了preamble之后，将开启一个RAR时间窗(RA Response window)，在RAR时间窗内监听随机接入无线网络临时标识(Random Access Radio Network Temporary Identifier，RA-RNTI)加扰的物理下行控制信道(Physical Downlink Control Channel，PDCCH)，以接收对应RA-RNTI的RAR消息。RA-RNTI根据发送Preamble的PRACH的时频位置计算得到，因此如果多个UE在同一个RO上发送Preamble，则对应的RAR复用在同一个RAR媒体接入控制(Medium Access Control，MAC)协议数据单元(Protocol Data Unit，PDU)中。RAR MAC PDU由1个或多个MAC子协议数据单元(subPDU)和可选的填充(padding)组成，其中，MAC subPDU的组成如下：
仅具有回退指示(Backoff Indicator，BI)的MAC子头即BI MAC子头(可单独存在)；
仅具有随机接入前导标识(Random Access Preamble Identifier，RAPID)的MAC子头即RAPID MAC子头(即对SI请求的确认，可单独存在)；
具有RAPID的MAC RAR的MAC子头。
其中，具有BI的MAC子头由五个头部字段：E(Exension)/T(Type)/R(Reserved)/R/BI组成，仅具有RAPID的MAC子头和具有RAPID的MAC RAR的MAC子头由三个头部字段：E/T/RAPID组成。其中，R为保留字段，取值为0或1；E指示指示当前MAC subPDU是否是最后一个，当E取值为0，则指示当前MAC subPDU是最后一个，当E取值为1，则指示当前MAC subPDU后至少还有一个MAC subPDU；当T为0，指示BI MAC字头，当T为1，指示RAPID MAC字头；BI指示当前小区的过载情况；RAPID指示传输的随机接入前导。
若终端设备成功接收到与发送Preamble的RO资源对应的RA-RNTI加扰的PDCCH，并且RAR中包含一个MAC subPDU所携带的RAPID与S101中选择的PREAMBLE_INDEX相对应，则RAR接收成功，终端可解码得到定时提前命令(Timing AdvanceCommand，TAC)、上行授权(UL Grant)和临时小区无线网络临时标识(Temporary C-RNTI，TC-RNTI)。
若在RAR时间窗运行期间没有接收到与发送Preamble的RO资源对应的RA-RNTI加扰的PDCCH，或接收到了RA-RNTI加扰的PDCCH，但RAR中不包含与PREAMBLE_INDEX对应的MAC subPDU，则认为RAR接收失败，此时，若Preamble的传输次数没有超过网络配置的前导最大传输次数(preambleTransMax)，终端设备需要进行Msg1的重传，若Preamble的传输次数超过了网络配置的preambleTransMax，终端设备向上层上报随机接入问题。
S103，终端设备向网络设备发送Msg3。
如果终端设备成功地收到了RAR消息，则终端发送Msg3，即RAR消息调度的PUSCH。
Msg3主要用于通知网络设备该随机接入过程是由什么事件触发。比如，如果是初始接入随机过程，则Msg3中会携带UE ID和建立原因(establishment cause)；如果是RRC重建，则Msg3中会携带连接态UE标示和establishment cause。Msg3中需要包含UE的唯一标识，用于S104中的竞争解决。
在S103中UE会在Msg3有携带自己唯一的标识：C-RNTI或来自核心网的UE标志(S-TMSI或一个随机数)。对于处于RRC_CONNECTED状态的UE来说，其唯一标识为C-RNTI，对于非RRC_CONNECTED状态的UE来说，将使用一个来自核心网的唯一UE标志(S-TMSI或一个随机数)。
终端设备发送了Msg3之后，终端的MAC实体会启动如下操作：
1>、启动随机接入竞争解决定时器(ra-ContentionResolutionTimer)并且在每一个Msg3重传之后的第一个符号重启随机接入竞争解决定时器(ra-ContentionResolutionTimer)。
2>、在ra-ContentionResolutionTimer运行期间监听C-RNTI或TC-RNTIPDCCH，即监听网络发送的竞争解决消息。
步骤S104，网络设备向终端设备发送Msg4。
Msg4中包括竞争解决(contention resolution)消息，同时为终端设备分配上行传输资源。
网络设备在竞争解决机制中，会在Msg4中携带该唯一的标志以指定胜出的终端设 备。而其它没有在竞争解决中胜出的终端设备将重新发起随机接入。Msg4的PDCCH采用C-RNTI或TC-RNTI进行加扰。
对于处于RRC_CONNECTED态的终端设备，在ra-ContentionResolutionTimer运行期间接收到C-RNTI加扰的PDCCH即认为竞争解决成功；对于处于非RRC_CONNECTED态的终端设备，在ra-ContentionResolutionTimer运行期间接收到TC-RNTI加扰的PDCCH，当成功解码的Msg4对应的MAC PDU中包含的CRID与Msg3发送的CCCH SDU匹配，即认为竞争解决成功，终端设备随机接入过程成功。
在ra-ContentionResolutionTimer超时或竞争解决失败即随机接入失败的情况下，若Preamble的传输次数没有超过preambleTransMax，终端设备需要对Msg1进行重传，若Preamble的传输次数超过了preambleTransMax，终端设备向上层上报随机接入问题。
基于非竞争的随机接入方式的处理流程，如图2所示，包括如下三个步骤：
S201、网络设备向终端设备发送分配的随机接入Preamble。
S202、终端设备通过Msg1向网络设备发送随机接入Preamble。
基于非竞争的随机接入，PRACH时域资源和preamble可以由网络设备指定。
S203、网络设备向终端设备发送Msg2。
网络设备检测到有终端设备发送Preamble之后，通过Msg2向终端设备发送RAR。
终端设备发送Msg1之后,开启一个随机接入响应时间窗，在该随机接入响应时间窗内监测RA-RNTI加扰的PDCCH，关于随机接入响应的描述可参见S102中的描述。
对于基于非竞争的随机接入，终端设备成功接收Msg2后，随机接入过程结束。
第二类随机接入与第一类随机接入相比，第二类随机接入可以提高时延，同时也能降低信令开销。第二类随机接入的处理流程如图3所示，包括：
S301，终端设备向网络设备发送MsgA。
MsgA包含preamble以及上行数据部分(如通过PUSCH承载)。preamble为第一类随机接入的Msg1的内容；上行数据部分承载UE的标识信息和/或RRC请求的原因，为第一类随机接入的Msg3的内容。
步骤S302，网络设备向终端设备发送MsgB。
MsgB包含竞争解决信息以及TAC、C-RNTI的分配信息等，MsgB等效于包括第一类随机接入的Msg2和Msg4。
基于图3所示的2-step RACH，如图4所示，如果在MsgB中收到回退指示，则终端设备执行S401，向网络设备发送Msg3，并监听S402中的Msg4，如果在Msg3传输之后竞争解决不成功，终端设备继续进行S301，进行MsgA的传输。
当上行UL带宽部分(Bandwidth Part，BWP)上用于进行随机接入的资源对应的随机接入类型包括以下两种情况：
情况1、仅对应两步随机接入；
情况2，包括两步随机接入和四步随机接入。
相关技术中，并未涉及上述两种情况如何进行随机接入问题的上报。
基于上述问题，本发明实施例提供一种随机接入问题上报方法，本发明实施例的信息处理方法可以应用于各种通信系统，例如：长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、5G系统或未来的通信系统等。
示例性的，本发明实施例应用的通信系统500，如图5所示。该通信系统500可以包括网络设备510，网络设备510可以是与终端设备520(或称为通信终端、终端)通 信的设备。网络设备510可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。可选地，该网络设备510可以是LTE系统中的演进型基站(Evolutional Node B，eNB或eNodeB)，还可以是NR/5G系统中的基站(gNB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器。
通信系统500还可包括：云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备等。
该通信系统500还包括位于至少一个网络设备510覆盖范围内的至少一个终端设备520。作为在此使用的“终端设备”包括但不限于经由有线线路连接，如经由公共交换电话网络(Public Switched Telephone Networks，PSTN)、数字用户线路(Digital Subscriber Line，DSL)、数字电缆、直接电缆连接；和/或另一数据连接/网络；和/或经由无线接口，如，针对蜂窝网络、无线局域网(Wireless Local Area Network，WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器；和/或另一终端设备的被设置成接收/发送通信信号的装置；和/或物联网(Internet of Things，IoT)设备。被设置成通过无线接口通信的终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(Personal Communications System，PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(Global Positioning System，GPS)接收器的PDA；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
可选地，5G系统或5G网络还可以称为新无线(New Radio，NR)系统或NR网络。
图5示例性地示出了一个网络设备和两个终端设备，可选地，该通信系统500可以包括多个终端设备以及多个网络设备，并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本发明实施例对此不做限定。
可选地，该通信系统500还可以包括网络控制器、移动管理实体等其他网络实体，本发明实施例对此不作限定。
本发明实施例提供的随机接入问题上报方法的一种可选处理流程，如图6所示，包括以下步骤：
S601、终端设备根据上行带宽部分支持的随机接入类型，确定随机接入尝试阈值。
本发明实施例中，上行带宽部分支持的随机接入的类型为该上行带宽部分中用于随机接入的资源对应的随机接入的类型。
以上行带宽部分的用于随机接入的资源对应的随机接入的类型为情况1的仅对应两步随机接入为例，上行带宽部分仅配置两步随机接入的资源，终端设备的上行带宽部分仅支持两步随机接入。
当终端设备的上行带宽部分仅支持两步随机接入，则随机接入尝试阈值包括：第一 尝试阈值，以通过第一尝试阈值确定是否进行随机接入问题上报。其中，第一尝试阈值也可称为第一两步随机接入最大尝试次数。
本发明实施例中，通过N1标识第一尝试阈值。
在当前上行带宽部分仅配置两步随机接入的资源情况下，当前上行带宽部分仅可执行两步随机接入。
以上行带宽部分的用于随机接入的资源对应的随机接入的类型为情况2的包括两步随机接入和四步随机接入为例，上行带宽部分同时配置两步随机接入的资源和四步随机接入的资源，终端设备的上行带宽部分同时支持两步随机接入和四步随机接入。
当终端设备的上行带宽部分同时支持两步随机接入和四步随机接入，则随机接入尝试阈值包括：第三尝试阈值，以通过第三尝试阈值确定是否进行随机接入问题上报。其中，第三尝试阈值也可称为四步随机接入最大尝试次数。
在当前上行带宽部分同时配置两步随机接入的资源和四步随机接入的资源的情况下，当前上行带宽部分可执行两步随机接入，也可执行四步随机接入。
本发明实施例中，通过K标识第三尝试阈值。
可选地，N1小于或等于K。
本发明实施例中，终端设备包括一个或多个用于执行随机接入过程的上行带宽部分。在一时刻，仅激活一个上行带宽部分来执行随机接入过程。
S602、当所述终端设备随机接入失败，所述终端设备根据随机接入请求的发送次数与所述随机接入尝试阈值的关系，确定是否进行随机接入问题上报。
本发明实施例中，当终端执行两步随机接入，则发送的随机接入请求为MsgA；当终端执行四步随机接入，则发送的随机接入请求为Msg1。
在上行带宽部分仅支持两步随机接入的情况下，如图7所示，S602包括：
S602a、当所述终端设备随机接入失败，根据随机接入请求的发送次数与第一尝试阈值的关系，确定是否进行随机接入问题上报。
此时，根据随机接入请求的发送次数与随机接入尝试阈值的关系，确定是否进行随机接入问题上报，包括：根据随机接入请求的发送次数与第一尝试阈值的关系，确定是否进行随机接入问题上报。
可选地，第一尝试阈值由网络设备配置。在一示例中，网络设备在两步随机接入参数域中配置第一尝试阈值。
S602a中根据随机接入请求的发送次数与第一尝试阈值的关系，确定是否进行随机接入问题上报采用的方案包括以下方案之一：
方案一、当所述发送次数达到所述第一尝试阈值，确定进行随机接入问题上报；当所述发送次数未达到所述第一尝试阈值，确定不进行随机接入问题上报。
方案二、当所述发送次数达到所述第一尝试阈值且所述发送次数未达到随机接入问题上报阈值，确定不进行随机接入问题上报；当所述发送次数达到所述第一尝试阈值且所述发送次数达到所述随机接入问题上报阈值，确定进行随机接入问题上报；所述随机接入问题上报阈值大于所述第一尝试阈值。
方案三、当所述发送次数达到所述第一尝试阈值且问题上报定时器未超时，确定不进行随机接入问题上报；当所述发送次数达到所述第一尝试阈值且所述问题上报定时器超时，确定进行随机接入问题上报。
以根据随机接入请求的发送次数与第一尝试阈值的关系确定是否进行随机接入问题上报采用的方案为方案1为例，当随机接入请求的发送次数达到第一尝试阈值但随机接入仍失败，终端设备进行随机接入问题的上报。当终端设备在随机接入成功时发送的随机接入请求的次数未超过N1，则终端设备不进行随机接入问题上报。
可选地，所述第一尝试阈值大于第二尝试阈值，所述第二尝试阈值用于所述终端设备在所述终端设备的上行带宽部分配置两步随机接入的资源和四步随机接入的资源的情况下，确定是否由两步随机接入回退至四步随机接入。其中，第二尝试阈值也可称为第二两步随机接入最大尝试次数。
本发明实施例中，通过N2标识第二尝试阈值。本发明实施例中，N2小于K。
可选地，第二尝试阈值由网络设备配置。在一示例中，网络设备在两步随机接入参数域中配置第二尝试阈值。
以根据随机接入请求的发送次数与第一尝试阈值的关系确定是否进行随机接入问题上报采用的方案为方案2为例，当所述终端设备发送所述随机接入请求的次数达到随机接入问题上报阈值，且随机接入失败，确定进行随机接入问题上报。
这里，引入随机接入问题上报阈值，当随机接入请求的发送次数达到第一尝试阈值但随机接入仍失败，则继续尝试两步随机接入，直到随机接入请求的发送次数达到随机接入问题上报阈值，若随机接入仍未成功，则进行随机接入问题上报。
可选地，所述第一尝试阈值等于第二尝试阈值，即N1＝N2。
本发明实施例中，通过M标识随机接入问题上报阈值。当终端设备在随机接入成功时发送的随机接入请求的次数未超过M，则终端设备不进行随机接入问题上报。
可选地，所述随机接入问题上报阈值由网络设备配置。在一示例中，网络设备在两步随机接入参数域中配置随机接入问题上报阈值。其中，N1小于M。
以根据随机接入请求的发送次数与第一尝试阈值的关系确定是否进行随机接入问题上报采用的方案为方案3为例，当随机接入请求的发送次数达到所述第一尝试阈值，且随机接入失败，确定问题上报定时器是否超时，如果未超时，则继续发送所述随机接入请求，直到问题上报定时器超时且随机接入仍失败，确定进行随机接入问题上报。
这里，引入了问题上报定时器，当随机接入请求的发送次数达到第一尝试阈值但随机接入仍失败，则继续尝试两步随机接入，直到问题上报定时器超时，若随机接入仍未成功，则进行随机接入问题的上报。当终端设备在问题上报定时器超时之前随机接入成功，则终端设备不进行随机接入问题的上报。
本发明实施例中，所述问题上报定时器的启动时机包括：
第一次发送所述随机接入请求的时间；或
所述发送次数达到所述第一尝试阈值的时间。
在问题上报定时器的启动时机为第一次发送所述随机接入请求的时间的情况下，终端设备在第一次发送MsgA的情况下，启动问题上报定时器。此时，问题上报定时器的时长大于发送N1次随机接入请求所需的时长。
在问题上报定时器的启动时机为发送次数达到所述第一尝试阈值的时间的情况下，终端设备在发送N1次MsgA，且随机接入失败的情况下，启动问题上报定时器。
可选地，所述问题上报定时器的时长由网络设备配置。在一示例中，网络设备在两步随机接入参数域中配置问题上报定时器的时长。
在上行带宽部分同时支持两步随机接入和四步随机接入的情况下，如图8所示，S602包括：
S602b、当所述终端设备随机接入失败，根据随机接入请求的发送次数与第三尝试阈值的关系，确定是否进行随机接入问题上报。
此时，所述根据随机接入请求的发送次数与随机接入阈值的关系，确定是否进行随机接入问题上报，包括：根据随机接入请求的发送次数与第三尝试阈值的关系，确定是否进行随机接入问题上报。
本发明实施例中，根据随机接入请求的发送次数与第三尝试阈值的关系，确定是否进行随机接入问题上报采用的方案包括：当所述发送次数达到所述第三尝试阈值，确定进行随机接入问题上报；当所述发送次数未达到所述第三尝试阈值，确定不进行随机接入问题上报。
本发明实施例中，在终端设备的上行带宽部分同时配置两步随机接入的资源和四步随机接入的资源的情况下，根据随机接入请求的发送次数与第三尝试阈值的关系，确定是否进行随机接入问题上报。
这里，当随机接入请求的发送次数达到第三尝试阈值但随机接入仍失败，终端设备进行随机接入问题的上报。当终端设备在随机接入成功时发送的随机接入请求的次数未超过第三尝试阈值K，则终端设备不进行随机接入问题的上报。
可选地，第三尝试阈值由网络设备配置。在一示例中，网络设备在四步随机接入参数域中配置第三尝试阈值。
本发明实施例中，在上行带宽部分支持的随机接入的类型包括两步随机接入和四步随机接入的情况下，所述方法还包括：当所述终端设备发送的随机接入请求为消息A，所述发送次数达到第二尝试阈值，且随机接入失败，所述终端设备由两步随机接入过程回退至四步随机接入过程。
本发明实施例中，当终端设备由两步随机接入过程回退至四步随机接入过程后，在接收到MsgB后，向网路设备发送Msg3。
当终端设备发送MsgA的次数达到N2且随机接入失败，终端设备发送Msg3，由两步随机接入回退到四步随机接入继续进行随机接入尝试。如果在Msg3传输之后随机接入不成功，终端设备继续进行MsgA的传输以执行两步随机接入。
本发明实施例中，根据上行带宽部分支持的类型是仅支持两步随机接入即仅配置两步随机接入的资源还是同时支持两步随机接入和四步随机接入即同时配置两步随机接入资源和四步随机接入资源来选择随机接入尝试阈值，并根据所选择的随机接入尝试阈值来控制随机接入失败情况下的随机接入问题的上报。
下面，通过不同的实例对本发明实施例提供的随机接入问题上报方法进行举例说明。
本发明实施例中，基于用于随机接入的资源对应的随机接入类型配置的参数包括：
配置方式一，UL BWP上同时配置了两步随机接入的资源和四步随机接入的资源，网络设备在四步随机接入参数域中配置K，在两步随机接入参数域中配置N2。
配置方式二，当UL BWP仅配置了两步随机接入的资源，网络设备在两步随机接入参数域中配置N2。
其中，在配置方式二的情况下，确定是否进行随机接入上报的方案包括：
方案A、N1>N2(比如N1＝K)，当UE尝试了N1次两步随机接入仍未接入成功时，进行随机接入问题上报；
方案B、N2＝N1，引入新的参数M，M>N1(比如：M＝K)，当UE尝试了N1次两步随机接入后，由于无法回退到四步随机接入，UE继续尝试两步随机接入，直到M次，若仍未接入成功，则进行随机接入问题上报.
方案C、在两步随机接入配置中引入问题上报定时器，问题上报定时器在初次传输MsgA后启动，当尝试了N1次两步随机接入后，UE继续进行两步随机接入直至问题上报定时器超时，若仍未接入成功，则进行随机接入问题上报。
实例一、UL BWP仅配置两步随机接入的资源的情况下的方案A
当前UL BWP上只配置有两步随机接入的资源，网络设备为UE配置第一尝试阈值 N1。终端设备在当前UL BWP上尝试两步随机接入，当Msg A传输次数超过N1，UE进行随机接入问题上报，如图9所示。
实例二、UL BWP仅配置两步随机接入的资源的情况下的方案B
当前UL BWP上只配置有两步随机接入的资源，网络设备为UE配置第一尝试阈值N1以及随机接入问题上报阈值M。UE在当前UL BWP上尝试两步随机接入，当MsgA传输次数超过N1，UE继续进行两步随机接入，当MsgA传输次数超过M时，UE进行随机接入问题上报，如图10所示。
实例三、UL BWP仅配置两步随机接入的资源情况下的方案C
当前UL BWP上只配置有两步随机接入的资源，网络设备为UE配置第一尝试阈值N1以及问题上报定时器。UE在当前UL BWP上尝试两步随机接入，当MsgA传输次数超过N1，UE继续进行两步随机接入直至定时器超时，若仍未接入成功，则UE进行随机接入问题上报，如图11所示，在第X次传输MsgA后，问题上报定时器超时，则进行随机接入问题上报。
实例四、UL BWP同时配置两步随机接入的资源和四步随机接入的资源
当UL BWP上同时配置了两步随机接入和四步随机接入资源，UE需要进行随机接入类型选择，假设UE测量得到的RSRP高于所配置的阈值，那么UE进入两步随机接入流程。若UE在尝试了N2次两步随机接入后仍未接入成功，那么UE将回退到四步随机接入继续进行接入尝试。当Preamble的传输次数超过K且随机接入失败，UE进行随机接入问题上报。其中N2在两步随机接入参数域中配置，K在四步随机接入参数域中配置，N1值小于K。
需要说明的是，若UE在进行了N2次两步随机接入尝试后仍未接入成功，此时UE无法回退到四步随机接入，因此随机接入问题上报需要发生在N2次两步随机接入尝试失败后。若N2取值较小，两步随机接入的失败可能由功率攀升不够引起，此时进行随机接入问题上报可能造成不必要的接入延迟。
当UL BWP仅配置了两步随机接入资源，且N1大于N2时，UE在进行了N1次两步随机接入尝试后仍未接入成功，则进行随机接入问题上报。由于再回退存在的情况，N1的设置通常较小，通过大于N1的N2避免UE由于功率攀升不够过早进行随机接入问题上报，从而避免引入不必要的接入时延。
当UL BWP仅配置了两步随机接入资源N1等于N2，UE在进行了N1次两步随机接入尝试后仍未接入成功后，继续进行随机接入尝试，直到进行了M次两次随机接入尝试后仍未接入成功，则进行随机接入问题上报。这里，不改变两步随机接入资源中对于N2的参数设置(N1＝N2)，引入新的参数避免UE过早进行随机接入问题上报。
当UL BWP仅配置了两步随机接入资源，在进行了N1次两步随机接入尝试后仍未接入成功后，继续进行随机接入尝试，直到问题上报定时器超时仍未接入成功，则进行随机接入问题上报。这里，引入定时器，避免UE过早进行随机接入问题上报。
为实现上述随机接入问题上报方法，本发明实施例还提供一种终端设备，所述终端设备的组成结构，如图12所示，终端设备1200包括：
选择单元1201，配置为根据所述终端设备的上行带宽部分支持的随机接入类型，确定随机接入尝试阈值；
确定单元1202，配置为当所述终端设备随机接入失败，根据随机接入请求的发送次数与所述随机接入尝试阈值的关系，确定是否进行随机接入问题上报。
本发明实施例中，确定单元1202还配置为：
在终端设备的上行带宽部分仅支持两步随机接入的情况下，根据随机接入请求的发 送次数与第一尝试阈值的关系，确定是否进行随机接入问题上报。
本发明实施例中，确定单元1202还配置为：
当所述发送次数达到所述第一尝试阈值，确定进行随机接入问题上报；
当所述发送次数未达到所述第一尝试阈值，确定不进行随机接入问题上报。
本发明实施例中，所述第一尝试阈值大于第二尝试阈值。
本发明实施例中，确定单元1202还配置为：
当所述发送次数达到所述第一尝试阈值且所述发送次数未达到随机接入问题上报阈值，确定不进行随机接入问题上报；
当所述发送次数达到所述第一尝试阈值且所述发送次数达到所述随机接入问题上报阈值，确定进行随机接入问题上报；所述随机接入问题上报阈值大于所述第一尝试阈值。
本发明实施例中，所述第一尝试阈值等于第二尝试阈值。
本发明实施例中，所述随机接入问题上报阈值由网络设备配置。
本发明实施例中，确定单元1202还配置为：
当所述发送次数达到所述第一尝试阈值且问题上报定时器未超时，确定不进行随机接入问题上报；
当所述发送次数达到所述第一尝试阈值且所述问题上报定时器超时，确定进行随机接入问题上报。。
本发明实施例中，所述问题上报定时器的启动时机包括：
第一次发送所述随机接入请求的时间；或
所述发送次数达到所述第一尝试阈值的时间。
本发明实施例中，所述问题上报定时器的时长由网络设备配置。
本发明实施例中，所述第一尝试阈值由网络设备配置。
本发明实施例中，确定单元1202还配置为：
在终端设备的上行带宽部分同时支持两步随机接入和四步随机接入的情况下，根据随机接入请求的发送次数与第三尝试阈值的关系，确定是否进行随机接入问题上报。
本发明实施例中，确定单元1202还配置为：
当所述发送次数达到所述第三尝试阈值，确定进行随机接入问题上报；
当所述发送次数未达到所述第三尝试阈值，确定不进行随机接入问题上报。
本发明实施例中，终端设备1200还包括：
回退单元，配置为当所述终端设备发送的随机接入请求为消息A，所述发送次数达到第二尝试阈值且随机接入失败，由两步随机接入过程回退至四步随机接入过程。
本发明实施例还提供一种终端设备，包括处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行上述终端设备执行的随机接入问题方法的步骤。
图13是本发明实施例的电子设备(终端设备)的硬件组成结构示意图，电子设备1300包括：至少一个处理器1301、存储器1302和至少一个网络接口1304。电子设备1300中的各个组件通过总线系统1305耦合在一起。可理解，总线系统1305用于实现这些组件之间的连接通信。总线系统1305除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图13中将各种总线都标为总线系统1305。
可以理解，存储器1302可以是易失性存储器或非易失性存储器，也可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是ROM、可编程只读存储器(PROM，Programmable Read-Only Memory)、可擦除可编程只读存储器(EPROM，Erasable  Programmable Read-Only Memory)、电可擦除可编程只读存储器(EEPROM，Electrically Erasable Programmable Read-Only Memory)、磁性随机存取存储器(FRAM，ferromagnetic random access memory)、快闪存储器(Flash Memory)、磁表面存储器、光盘、或只读光盘(CD-ROM，Compact Disc Read-Only Memory)；磁表面存储器可以是磁盘存储器或磁带存储器。易失性存储器可以是随机存取存储器(RAM，Random Access Memory)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(SRAM，Static Random Access Memory)、同步静态随机存取存储器(SSRAM，Synchronous Static Random Access Memory)、动态随机存取存储器(DRAM，Dynamic Random Access Memory)、同步动态随机存取存储器(SDRAM，Synchronous Dynamic Random Access Memory)、双倍数据速率同步动态随机存取存储器(DDRSDRAM，Double Data Rate Synchronous Dynamic Random Access Memory)、增强型同步动态随机存取存储器(ESDRAM，Enhanced Synchronous Dynamic Random Access Memory)、同步连接动态随机存取存储器(SLDRAM，SyncLink Dynamic Random Access Memory)、直接内存总线随机存取存储器(DRRAM，Direct Rambus Random Access Memory)。本发明实施例描述的存储器1302旨在包括但不限于这些和任意其它适合类型的存储器。
本发明实施例中的存储器1302用于存储各种类型的数据以支持电子设备1300的操作。这些数据的示例包括：用于在电子设备1300上操作的任何计算机程序，如应用程序13021。实现本发明实施例方法的程序可以包含在应用程序13021中。
上述本发明实施例揭示的方法可以应用于处理器1301中，或者由处理器1301实现。处理器1301可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器1301中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器1301可以是通用处理器、数字信号处理器(DSP，Digital Signal Processor)，或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。处理器1301可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本发明实施例所公开的方法的步骤，可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于存储介质中，该存储介质位于存储器1302，处理器1301读取存储器1302中的信息，结合其硬件完成前述方法的步骤。
在示例性实施例中，电子设备1300可以被一个或多个应用专用集成电路(ASIC，Application Specific Integrated Circuit)、DSP、可编程逻辑器件(PLD，Programmable Logic Device)、复杂可编程逻辑器件(CPLD，Complex Programmable Logic Device)、FPGA、通用处理器、控制器、MCU、MPU、或其他电子元件实现，用于执行前述方法。
本发明实施例还提供了一种存储介质，用于存储计算机程序。
可选的，该存储介质可应用于本发明实施例中的终端设备，并且该计算机程序使得计算机执行本发明实施例的各个方法中的相应流程，为了简洁，在此不再赘述。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定 方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (30)

  1. 一种随机接入问题上报方法，所述方法包括：
    终端设备根据上行带宽部分支持的随机接入类型，确定随机接入尝试阈值；
    当所述终端设备随机接入失败，所述终端设备根据随机接入请求的发送次数与所述随机接入尝试阈值的关系，确定是否进行随机接入问题上报。
  2. 根据权利要求1所述的方法，其中，在终端设备的上行带宽部分仅支持两步随机接入的情况下，所述根据随机接入请求的发送次数与所述随机接入尝试阈值的关系，确定是否进行随机接入问题上报，包括：
    根据随机接入请求的发送次数与第一尝试阈值的关系，确定是否进行随机接入问题上报。
  3. 根据权利要求2所述的方法，其中，所述根据随机接入请求的发送次数与第一尝试阈值的关系，确定是否进行随机接入问题上报，包括：
    当所述发送次数达到所述第一尝试阈值，确定进行随机接入问题上报；
    当所述发送次数未达到所述第一尝试阈值，确定不进行随机接入问题上报。
  4. 根据权利要求3所述的方法，其中，所述第一尝试阈值大于第二尝试阈值。
  5. 根据权利要求2所述的方法，其中，所述根据随机接入请求的发送次数与第一尝试阈值的关系，确定是否进行随机接入问题上报，包括：
    当所述发送次数达到所述第一尝试阈值且所述发送次数未达到随机接入问题上报阈值，确定不进行随机接入问题上报；
    当所述发送次数达到所述第一尝试阈值且所述发送次数达到所述随机接入问题上报阈值，确定进行随机接入问题上报；所述随机接入问题上报阈值大于所述第一尝试阈值。
  6. 根据权利要求5所述的方法，其中，所述第一尝试阈值等于第二尝试阈值。
  7. 根据权利要求5或6所述的方法，其中，所述随机接入问题上报阈值由网络设备配置。
  8. 根据权利要求2所述的方法，其中，所述根据随机接入请求的发送次数与第一尝试阈值的关系，确定是否进行随机接入问题上报，包括：
    当所述发送次数达到所述第一尝试阈值且问题上报定时器未超时，确定不进行随机接入问题上报；
    当所述发送次数达到所述第一尝试阈值且所述问题上报定时器超时，确定进行随机接入问题上报。
  9. 根据权利要求8所述的方法，其中，所述问题上报定时器的启动时机包括：
    第一次发送所述随机接入请求的时间；或
    所述发送次数达到所述第一尝试阈值的时间。
  10. 根据权利要求8或9所述的方法，其中，所述问题上报定时器的时长由网络设备配置。
  11. 根据权利要求1至10任一项所述的方法，其中，所述第一尝试阈值由网络设备配置。
  12. 根据权利要求1至11任一项所述的方法，其中，在终端设备的上行带宽部分同时支持两步随机接入和四步随机接入的情况下，所述根据随机接入请求的发送次数与随机接入阈值的关系，确定是否进行随机接入问题上报，包括：
    根据随机接入请求的发送次数与第三尝试阈值的关系，确定是否进行随机接入问 题上报。
  13. 根据权利要求12所述的方法，其中，所述根据随机接入请求的发送次数与第三尝试阈值的关系，确定是否进行随机接入问题上报，包括：
    当所述发送次数达到所述第三尝试阈值，确定进行随机接入问题上报；
    当所述发送次数未达到所述第三尝试阈值，确定不进行随机接入问题上报。
  14. 根据权利要求12或13所述的方法，其中，所述方法还包括：
    当所述终端设备发送的随机接入请求为消息A，所述发送次数达到第二尝试阈值且随机接入失败，所述终端设备由两步随机接入过程回退至四步随机接入过程。
  15. 一种终端设备，所述终端设备包括：
    选择单元，配置为根据所述终端设备的上行带宽部分支持的随机接入类型，确定随机接入尝试阈值；
    确定单元，配置为当所述终端设备随机接入失败，根据随机接入请求的发送次数与所述随机接入尝试阈值的关系，确定是否进行随机接入问题上报。
  16. 根据权利要求15所述的终端设备，其中，所述确定单元还配置为：
    在终端设备的上行带宽部分仅支持两步随机接入的情况下，根据随机接入请求的发送次数与第一尝试阈值的关系，确定是否进行随机接入问题上报。
  17. 根据权利要求16所述的终端设备，其中，所述确定单元还配置为：
    当所述发送次数达到所述第一尝试阈值，确定进行随机接入问题上报；
    当所述发送次数未达到所述第一尝试阈值，确定不进行随机接入问题上报。
  18. 根据权利要求17所述的终端设备，其中，所述第一尝试阈值大于第二尝试阈值。
  19. 根据权利要求16所述的终端设备，其中，所述确定单元还配置为：
    当所述发送次数达到所述第一尝试阈值且所述发送次数未达到随机接入问题上报阈值，确定不进行随机接入问题上报；
    当所述发送次数达到所述第一尝试阈值且所述发送次数达到所述随机接入问题上报阈值，确定进行随机接入问题上报；所述随机接入问题上报阈值大于所述第一尝试阈值。
  20. 根据权利要求19所述的终端设备，其中，所述第一尝试阈值等于第二尝试阈值。
  21. 根据权利要求19或20所述的终端设备，其中，所述随机接入问题上报阈值由网络设备配置。
  22. 根据权利要求16所述的终端设备，其中，所述确定单元还配置为：
    当所述发送次数达到所述第一尝试阈值且问题上报定时器未超时，确定不进行随机接入问题上报；
    当所述发送次数达到所述第一尝试阈值且所述问题上报定时器超时，确定进行随机接入问题上报。。
  23. 根据权利要求22所述的终端设备，其中，所述问题上报定时器的启动时机包括：
    第一次发送所述随机接入请求的时间；或
    所述发送次数达到所述第一尝试阈值的时间。
  24. 根据权利要求22或23所述的终端设备，其中，所述问题上报定时器的时长由网络设备配置。
  25. 根据权利要求15至24任一项所述的终端设备，其中，所述第一尝试阈值由网络设备配置。
  26. 根据权利要求15至25任一项所述的终端设备，其中，所述确定单元还配置为：
    在终端设备的上行带宽部分同时支持两步随机接入和四步随机接入的情况下，根据随机接入请求的发送次数与第三尝试阈值的关系，确定是否进行随机接入问题上报。
  27. 根据权利要求26所述的终端设备，其中，所述确定单元还配置为：
    当所述发送次数达到所述第三尝试阈值，确定进行随机接入问题上报；
    当所述发送次数未达到所述第三尝试阈值，确定不进行随机接入问题上报。
  28. 根据权利要求26或27所述的终端设备，其中，所述终端设备还包括：
    回退单元，配置为当所述终端设备发送的随机接入请求为消息A，所述发送次数达到第二尝试阈值且随机接入失败，由两步随机接入过程回退至四步随机接入过程。
  29. 一种终端设备，包括处理器和用于存储能够在处理器上运行的计算机程序的存储器，其中，所述处理器用于运行所述计算机程序时，执行上述权利要求1至14任一项所述的随机接入问题上报方法的步骤。
  30. 一种存储介质，存储有可执行程序，所述可执行程序被处理器执行时，实现上述权利要求1至14任一项所述的随机接入问题上报方法。
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