WO2020107416A1 - 随机接入过程选择方法、装置、芯片及计算机程序 - Google Patents

随机接入过程选择方法、装置、芯片及计算机程序 Download PDF

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Publication number
WO2020107416A1
WO2020107416A1 PCT/CN2018/118628 CN2018118628W WO2020107416A1 WO 2020107416 A1 WO2020107416 A1 WO 2020107416A1 CN 2018118628 W CN2018118628 W CN 2018118628W WO 2020107416 A1 WO2020107416 A1 WO 2020107416A1
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WIPO (PCT)
Prior art keywords
random access
access process
terminal device
measurement result
predetermined condition
Prior art date
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PCT/CN2018/118628
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English (en)
French (fr)
Inventor
徐伟杰
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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 MX2021006378A priority Critical patent/MX2021006378A/es
Priority to CA3121400A priority patent/CA3121400A1/en
Priority to SG11202105619VA priority patent/SG11202105619VA/en
Priority to PCT/CN2018/118628 priority patent/WO2020107416A1/zh
Priority to BR112021010314-7A priority patent/BR112021010314A2/pt
Priority to EP18941867.6A priority patent/EP3879883A4/en
Priority to CN201880097412.8A priority patent/CN112673676A/zh
Priority to CN202110629154.7A priority patent/CN113347735A/zh
Priority to KR1020217019540A priority patent/KR20210095906A/ko
Publication of WO2020107416A1 publication Critical patent/WO2020107416A1/zh
Priority to US17/332,272 priority patent/US20210289560A1/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
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • 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
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • This application relates to network technology, in particular to a method, device, chip and computer program for selecting a random access process.
  • the terminal device After the cell search process, the terminal device has already achieved downlink synchronization with the cell, so it can receive downlink data, but it can only perform uplink transmission if it has achieved uplink synchronization with the cell.
  • the terminal equipment can establish a connection with the cell and obtain uplink synchronization through a random access procedure (Random Access Procedure).
  • the main purpose of the random access process is as follows: 1) to obtain uplink synchronization; 2) to allocate a unique identification of the cell radio network temporary identifier (C-RNTI, Cell Radio Network temporary identifier).
  • C-RNTI Cell Radio Network temporary identifier
  • the random access process is usually triggered by one of the following 6 types of events.
  • RRC RRC Connection Re-establishment procedure
  • Radio Resource Control Radio Resource Control
  • the terminal device needs to establish uplink synchronization with the new cell.
  • the uplink In the RRC_CONNECTED state, when the uplink data arrives. If it is necessary to report a measurement report or send user data, the uplink is in the "out of sync" state or no physical uplink control channel (PUCCH, Physical Uplink Control, CHannel) resources are available for scheduling requests (SR, Scheduling Request) transmission, at this time, the terminal device that is already in the uplink synchronization state is allowed to use a random access channel (RACH, Random Access Channel) to replace the role of SR.
  • PUCCH Physical Uplink Control Channel
  • SR Scheduling Request
  • the embodiments of the present application provide a random access process selection method, device, chip, and computer program.
  • a random access process selection method including:
  • the terminal device selects to initiate random access through the first random access process or the second random access process based on predetermined conditions.
  • a random access process selection method including:
  • the network side configures the terminal device with a first random access process and a second random access process at the same time, for the terminal device to select the first random access process or the The second random access process initiates random access.
  • a terminal device for performing the method in the first aspect or its implementations.
  • the terminal device includes a functional module for performing the method in the above-mentioned first aspect or various implementations thereof.
  • a network device is provided for performing the method in the second aspect or its implementations.
  • the network device includes a functional module for performing the method in the above-mentioned second aspect or various implementations thereof.
  • a communication device including a processor and a memory, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the above first to second aspects In any aspect or method in each of its implementations.
  • a chip is provided for implementing any one of the above-mentioned first to second aspects or the method in each of the implementations thereof.
  • the chip includes: a processor for calling and running a computer program from the memory, so that the device installed with the chip executes any one of the first aspect to the second aspect described above or its respective implementations method.
  • a computer-readable storage medium for storing a computer program that causes a computer to execute the method in any one of the above first to second aspects or the various implementations thereof.
  • a computer program product including computer program instructions, which cause the computer to execute the method in any one of the above first to second aspects or various implementations thereof.
  • a computer program which when run on a computer, causes the computer to execute the method in any one of the above first to second aspects or the respective implementations thereof.
  • the terminal device may choose to pass the first random access process or It is the second random access process that initiates random access, so that a reasonable random access process can be selected according to the characteristics of different random access processes, thereby improving the efficiency of the random access process.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a four-step random access process provided by an embodiment of this application.
  • FIG. 3 is a schematic structural diagram of a terminal device 300 provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a network device 400 provided by an embodiment of this application.
  • FIG. 5 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a chip 700 provided by an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of a communication system 800 provided by an embodiment of the present application.
  • GSM Global Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GSM Global Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal).
  • the network device 110 can provide communication coverage for a specific geographic area, and can communicate with terminal devices located within the coverage area.
  • the network device 110 may be a base station (BTS, Base Transceiver Station) in a GSM system or a CDMA system, a base station (NB, NodeB) in a WCDMA system, or an evolved base station in an LTE system (eNB or eNodeB, Evolutional Node B), or a wireless controller in a cloud radio access network (CRAN, Cloud Radio Access Network), or the network equipment may be a mobile switching center, a relay station, an access point, an in-vehicle device, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks or network devices in future public land mobile networks (PLMN, Public Land Mobile Network), etc.
  • BTS Base Transceiver Station
  • NB NodeB
  • eNB or eNodeB Evolutional Node B
  • CRAN Cloud Radio Access Network
  • the network equipment may be a mobile switching center, a relay station, an access point, an in-vehicle device, Wearable devices, hubs, switches
  • the communication system 100 also includes at least one terminal device 120 within the coverage of the network device 110.
  • terminal equipment includes, but is not limited to, connection via wireline, such as via public switched telephone network (PSTN, Public Switched Telephones, Networks), digital subscriber line (DSL, Digital Subscriber Line), digital cable, direct cable connection ; And/or another data connection/network; and/or via wireless interfaces, such as for cellular networks, wireless local area networks (WLAN, Wireless Local Area), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and/or another terminal device configured to receive/transmit communication signals; and/or Internet of Things (IoT, Internet of Things) equipment.
  • PSTN public switched telephone network
  • DSL Digital Subscriber Line
  • wireless interfaces such as for cellular networks, wireless local area networks (WLAN, Wireless Local Area), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and/or another terminal device configured to receive/transmit communication signals; and/or Internet of Things (IoT
  • a terminal device configured to communicate through a wireless interface may be referred to as a "wireless communication terminal", “wireless terminal”, or “mobile terminal”.
  • mobile terminals include but are not limited to satellite or cellular phones; personal communication system (PCS, Personal Communications System) terminals that can combine cellular radiotelephones with data processing, facsimile, and data communication capabilities; can include radiotelephones, pagers, Internet/internal PDA with network access, web browser, notepad, calendar, and/or GPS (Global Positioning System) receiver; and conventional laptop and/or palm-type receivers or others including radiotelephone transceivers Electronic device.
  • PCS Personal Communications System
  • GPS Global Positioning System
  • Terminal equipment can refer to access terminal, user equipment (UE, User Equipment), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or User device.
  • Access terminals can be cellular phones, cordless phones, Session Initiation Protocol (SIP, Session) Protocol phones, wireless local loop (WLL, Wireless Local Loop) stations, personal digital processing (PDA, Personal Digital Assistant), with wireless communication Functional handheld devices, computing devices, or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in a 5G network, or terminal devices in a future-evolving PLMN, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • terminal terminal 120 may perform terminal direct connection (D2D, Device to Device) communication.
  • D2D Terminal Direct connection
  • the 5G system or 5G network may also be referred to as an NR system or NR network.
  • the technical solutions in the embodiments of the present application may be applied to unlicensed spectrum or to licensed spectrum, which is not limited in the embodiments of the present application.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. This application The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.
  • network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.
  • the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices.
  • the communication device may include a network device 110 and a terminal device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities, and other network entities, which are not limited in the embodiments of the present application.
  • the terminal device when the system is configured with the first random access process and the second random access process at the same time, the terminal device may select the first random access process or The second random access process initiates random access.
  • the first random access process may include: a two-step random access process
  • the second random access process may include: a four-step random access process.
  • FIG. 2 is a schematic diagram of a four-step random access process provided by an embodiment of this application. As shown in FIG. 2, it mainly includes the following steps 1) to 4), which can be referred to as Msg1 to Msg4, respectively.
  • Step 1) The terminal device sends a preamble.
  • the terminal device sends a random access preamble (random access preamble) to the base station (eNodeB) to notify the eNodeB of a random access request, and at the same time enables the eNodeB to estimate the transmission delay between it and the terminal device and calibrate the uplink timing based on this timing).
  • a random access preamble random access preamble
  • Step 2) The eNodeB sends a random access response (RAR, Random Access Response).
  • RAR Random Access Response
  • the terminal device After the terminal device sends the preamble, it will monitor the physical downlink control channel (PDCCH, Physical Downlink Control Channel) in the RAR time window (RA Response) to receive the corresponding random access wireless network temporary identifier (RA-RNTI, Radom Access-Radio) If the RAR returned by the eNodeB is not received within this RAR time window, the random access process fails.
  • PDCCH Physical Downlink Control Channel
  • RA Response random access wireless network temporary identifier
  • the terminal device When the terminal device successfully receives a RAR (decoded using the RA-RNTI introduced earlier), and the preamble index (preamble index) in the RAR is the same as the preamble index sent by the terminal device, it is considered that the RAR has been successfully received.
  • the terminal device can stop listening to RAR.
  • One RAR message can contain response messages to multiple users who send preamble, and the response message to each user can contain the random access preamble identifier (RAPID, Random Access Preamble Identity) adopted by the user, and resource allocation information of Msg3 , Timing Advance (TA, Timing Advance) adjustment information, temporary C-RNTI (TC-RNTI, Temporal C-RNTI), etc.
  • RAPID Random Access Preamble Identity
  • Msg3 Msg3
  • Timing Advance (TA, Timing Advance) adjustment information e.g3
  • TC-RNTI Temporal C-RNTI
  • RAR messages are scheduled using Downlink Control Information (DCI, Downlink Control Information) format 1-0, and the corresponding PDCCH is scrambled using RA-RNTI.
  • DCI Downlink Control Information
  • Step 3) The terminal device sends Msg3.
  • the information carried in Msg3 is as follows.
  • Msg3 is an RRC connection request (RRC Connection Request) transmitted on a common control channel (CCCH, Common Control CHannel), and at least needs to carry a non-access layer (NAS, Non-Access Stratum) ) Terminal device identification information.
  • RRC Connection Request RRC Connection Request
  • CCCH Common Control CHannel
  • NAS Non-Access Stratum
  • Msg3 is the RRC Connection Re-establishment Request transmitted on the CCCH, and does not carry any NAS messages.
  • Msg3 is an encrypted and integrity-protected RRC handover confirmation (RRC Handover Confirm) transmitted on a dedicated control channel (DCCH, Dedicated Control CHannel). It needs to include the C-RNTI of the terminal device, if possible Need to carry Buffer Status Report (BSR, Buffer Status Report).
  • At least the C-RNTI needs to be carried.
  • Uplink transmission usually uses terminal-specific information, such as C-RNTI, to scramble uplink shared channel (UL-SCH, Uplink Shared Channel) data, but the conflict has not been resolved at this time. Scrambling cannot be based on C-RNTI, only Can use TC-RNT, that is to say, Msg3 will only use TC-RNTI for scrambling.
  • C-RNTI terminal-specific information
  • the terminal device will carry its own unique identifier such as C-RNTI in Msg3.
  • eNodeB will carry the unique identifier in Msg4 to designate the winning terminal device, while the other will not be in conflict resolution.
  • the terminal device that wins will re-initiate random access.
  • the PDCCH of Msg4 adopts TC-RNTI for scrambling.
  • the traditional four-step random access process can be compressed into a two-step random access process.
  • the basic idea is to include the new Msg1 sent by the terminal device and the new response from the network side. Msg2.
  • the new Msg1 contains the preamble and the uplink data part, where the uplink data part carries the identification information of the terminal device and the reason for the RRC request (that is, the content of Msg3 in the four-step random access process), while the new Msg2 Contains conflict resolution information, TA information, C-RNTI allocation information, etc., that is, a collection of respective pieces of information including Msg2 and Msg4 information in the four-step random access process.
  • the new Msg2 carries conflict resolution information sent by a single user (the terminal sent by the terminal device in the new Msg1 Device identification related information), C-RNTI allocation information, TA information, and may also include RRC establishment information, etc.
  • the two-step random access process can effectively shorten the delay of random access by sending the preamble and the data part together.
  • a two-step random access process is used for random access, it may be less efficient. This is because for the terminal device, each new Msg1 transmission means that the preamble and the data part are transmitted at the same time, and the power consumption is higher than that of the first step of the traditional four-step random access. Only the preamble is sent. Therefore, It is necessary to limit the selection of random access procedures for terminal devices.
  • the terminal device may choose to initiate a random access through a two-step random access process or a four-step random access process based on predetermined conditions Into.
  • the predetermined condition may include one or any combination of the following: reference signal received power (RSRP,
  • Measurement results of Reference Signal Receiving Power measurement results of reference signal reception quality (RSRQ, Reference Signal Receiving Quality), measurement results of reference signal signal drying ratio (RS-SINR, Reference Signal-Signal to Interference plus Noise Rate), terminal
  • the service quality of service (QoS, Quality of Service) requirements of the equipment may include the service delay requirements of the terminal equipment.
  • the terminal device may obtain the measurement result of RSRP and/or the measurement result of RSRQ and/or the measurement of RS-SINR based on the measurement of the primary cell (Pcell, Primary cell), the primary and secondary cell (Pscell, Primary cell) or the target handover cell result.
  • the predetermined condition is the measurement result of RSRP
  • the measurement result of RSRP is greater than the preset first threshold, you can choose to initiate random access through a two-step random access process, otherwise, you can choose to initiate through a four-step random access process Random access.
  • the random access may be initiated through a two-step random access process, otherwise, it may be initiated through a four-step random access process Random access.
  • the predetermined condition is the measurement result of RS-SINR
  • the measurement result of RS-SINR is greater than the preset third threshold, you can choose to initiate random access through the two-step random access process, otherwise, you can choose to pass the four-step random The access process initiates random access.
  • the first threshold, the second threshold, and the third threshold are the channel quality thresholds of the terminal equipment. A better channel quality is conducive to the rapid success of the two-step random access process, and to take advantage of the efficiency of the two-step random access process. Therefore, when the RSRP measurement result is greater than the first threshold, the RSRQ measurement result is greater than the second threshold, or the RS-SINR measurement result is greater than the third threshold, you can choose to initiate random access through a two-step random access process, otherwise, you can choose to pass the four Step random access process initiates random access.
  • the predetermined condition is the service delay requirement of the terminal device
  • the service delay requirement of the terminal device is less than the preset fourth threshold, you can choose to initiate random access through a two-step random access process, otherwise, you can choose to pass the four Step random access process initiates random access.
  • the fourth threshold is mainly to consider the service delay requirements of the terminal equipment. Based on the characteristics of the two-step random access process, if the delay requirement is high, you can choose to initiate random access through the two-step random access process, otherwise, you can choose to pass the four-step random access process. The random access process initiates random access.
  • the predetermined condition is the working frequency band of the terminal device
  • the working frequency band of the terminal device if the working frequency band of the terminal device is an unlicensed band, you can choose to initiate random access through a two-step random access process, otherwise, that is, when the working frequency band of the terminal device is an authorized band Choose to initiate random access through a four-step random access process.
  • two-step random access can reduce the channel interception requirement of the random access process and improve the access efficiency in the unlicensed frequency band.
  • the predetermined condition is the access priority of the terminal device
  • the access priority of the terminal device is greater than the preset fifth threshold, you can choose to initiate random access through a two-step random access process, otherwise, you can choose to pass the four Step random access process initiates random access.
  • the fifth threshold mainly considers that the two-step random access process is preferentially used for terminal devices with high access priority, which can give priority to ensuring the user experience of terminal devices with high access priority.
  • the predetermined conditions include both the RSRP measurement result and the RS-SINR measurement result. Then, when the RSRP measurement result is greater than the first threshold and the RS-SINR measurement When the result is greater than the third threshold, choose to initiate random access through a two-step random access process, or, when any one of the RSRP measurement result and RS-SINR measurement result is greater than the corresponding threshold, that is, select Random access is initiated through a two-step random access process, and the specific implementation is not limited.
  • the first threshold, the second threshold, the third threshold, the fourth threshold, and the fifth threshold may be previously notified to the terminal device by the network side through system messages or RRC signaling, or may be agreed in advance by the terminal device and the network side.
  • the network side may configure the first random access process and the second random access process for the terminal device at the same time.
  • the first random access process or the second random access process is used to initiate random access based on predetermined conditions.
  • the first random access process may include: a two-step random access process
  • the second random access process may include: a four-step random access process.
  • the predetermined condition may include one or any combination of the following: the measurement result of RSRP, the measurement result of RSRQ, the measurement result of RS-SINR, the service QoS requirement of the terminal device, the operating frequency band of the terminal device, and the access priority of the terminal device.
  • the network side may use system messages or RRC
  • the signaling sends a threshold corresponding to a predetermined condition to the terminal device, which is used by the terminal device to select the first random access process or the second random access process to initiate random access according to the threshold.
  • the solution described in the method embodiment of the present application can select a reasonable random access process according to the characteristics of different random access processes, thereby improving the efficiency of the random access process.
  • FIG. 3 is a schematic structural diagram of a terminal device 300 provided by an embodiment of the present application. As shown in FIG. 3, it includes: a selection unit 301.
  • the selection unit 301 is configured to select the first random access process or the second random access process to initiate random access based on predetermined conditions when the system is configured with the first random access process and the second random access process at the same time.
  • the first random access process may include: a two-step random access process
  • the second random access process may include: a four-step random access process.
  • the predetermined condition may include one or any combination of the following: the measurement result of RSRP, the measurement result of RSRQ, the measurement result of RS-SINR, the service QoS requirement of the terminal device, the operating frequency band of the terminal device, and the access priority of the terminal device.
  • the service QoS requirements of the terminal equipment may include the service delay requirements of the terminal equipment.
  • the terminal device may further include: an obtaining unit 302, configured to obtain RSRP measurement results and/or RSRQ measurement results and/or RS based on the measurement of Pcell, Pscell or target handover cell -SINR measurement results.
  • an obtaining unit 302 configured to obtain RSRP measurement results and/or RSRQ measurement results and/or RS based on the measurement of Pcell, Pscell or target handover cell -SINR measurement results.
  • the selection unit 301 may choose to initiate random access through a two-step random access process, otherwise, it may choose to use a four-step random access Random access is initiated during the entry process.
  • the selection unit 301 may choose to initiate random access through a two-step random access process, otherwise, it may choose to pass a four-step random access Random access is initiated during the entry process.
  • the selection unit 301 may choose to initiate random access through a two-step random access process, otherwise, it may choose to pass The four-step random access process initiates random access.
  • the selection unit 301 may choose to initiate random access through a two-step random access process, otherwise, it may Choose to initiate random access through a four-step random access process.
  • the selection unit 301 may choose to initiate random access through a two-step random access process, otherwise, it may select a four-step random access process Initiate random access.
  • the selection unit 301 may choose to initiate random access through a two-step random access process, otherwise, it may Choose to initiate random access through a four-step random access process.
  • the predetermined conditions include both the RSRP measurement result and the RS-SINR measurement result. Then, when the RSRP measurement result is greater than the first threshold and the RS-SINR measurement When the result is greater than the third threshold, choose to initiate random access through a two-step random access process, or, when any one of the RSRP measurement result and RS-SINR measurement result is greater than the corresponding threshold, that is, select Random access is initiated through a two-step random access process, and the specific implementation is not limited.
  • the first threshold, the second threshold, the third threshold, the fourth threshold, and the fifth threshold may be notified by the network side to the acquisition unit 302 through system messages or RRC signaling, and then provided by the acquisition unit 302 to the selection unit 301, or It is agreed in advance by the terminal device and the network side.
  • FIG. 4 is a schematic structural diagram of a network device 400 provided by an embodiment of this application. As shown in FIG. 4, it includes: a configuration unit 401.
  • the configuration unit 401 is configured to configure the first random access process and the second random access process for the terminal device at the same time.
  • the terminal device needs to initiate random access, based on a predetermined condition, the first random access process or The second random access process initiates random access.
  • the first random access process may include: a two-step random access process
  • the second random access process may include: a four-step random access process.
  • the predetermined condition may include one or any combination of the following: the measurement result of RSRP, the measurement result of RSRQ, the measurement result of RS-SINR, the service QoS requirement of the terminal device, the operating frequency band of the terminal device, and the access priority of the terminal device.
  • the service QoS requirements of the terminal equipment may include the service delay requirements of the terminal equipment.
  • the network device shown in FIG. 4 may further include: a sending unit 402, configured to include RSRP measurement results, RSRQ measurement results, RS-SINR measurement results, terminal equipment service QoS requirements, and terminal equipment
  • a sending unit 402 configured to include RSRP measurement results, RSRQ measurement results, RS-SINR measurement results, terminal equipment service QoS requirements, and terminal equipment
  • a threshold corresponding to a predetermined condition is sent to the terminal device through a system message or RRC signaling, which is used by the terminal device to select the first random access process or the second random access process to initiate randomness Access.
  • FIG. 5 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application.
  • the communication device 600 shown in FIG. 5 includes a processor 610, and the processor 610 can call and run a computer program from the memory 620 to implement the method in the embodiments of the present application.
  • the communication device 600 may further include a memory 620.
  • the processor 610 can call and run a computer program from the memory 620 to implement the method in the embodiments of the present application.
  • the memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, may send information or data to other devices, or receive other Information or data sent by the device.
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of antennas may be one or more.
  • the communication device 600 may specifically be a network device according to an embodiment of the present application, and the communication device 600 may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. .
  • the communication device 600 may specifically be a mobile terminal/terminal device according to an embodiment of the present application, and the communication device 600 may implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, for simplicity , Will not repeat them here.
  • FIG. 6 is a schematic structural diagram of a chip 700 provided by an embodiment of the present application.
  • the chip 700 shown in FIG. 6 includes a processor 710, and the processor 710 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
  • the chip 700 may further include a memory 720.
  • the processor 710 can call and run a computer program from the memory 720 to implement the method in the embodiments of the present application.
  • the memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.
  • the chip 700 may further include an input interface 730.
  • the processor 710 can control the input interface 730 to communicate with other devices or chips. Specifically, it can obtain information or data sent by other devices or chips.
  • the chip 700 may further include an output interface 740.
  • the processor 710 can control the output interface 740 to communicate with other devices or chips. Specifically, it can output information or data to other devices or chips.
  • the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. No longer.
  • chips mentioned in the embodiments of the present application may also be referred to as system-on-chips, system chips, chip systems, or system-on-chip chips.
  • FIG. 7 is a schematic block diagram of a communication system 800 provided by an embodiment of the present application. As shown in FIG. 7, the communication system 800 includes a terminal device 810 and a network device 820.
  • the terminal device 810 can be used to implement the corresponding functions implemented by the terminal device in the above method
  • the network device 820 can be used to implement the corresponding functions implemented by the network device in the above method. Repeat.
  • the processor in the embodiment of the present application may be an integrated circuit chip, which has signal processing capabilities.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the aforementioned processor may be a general-purpose processor, a digital signal processor (DSP, Digital Processor), an application specific integrated circuit (ASIC, Application Integrated Circuit), an existing programmable gate array (FPGA, Field Programmable Gate Array), or other available Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA Field Programmable Gate Array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application may be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied and executed by a hardware decoding processor, or may be executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, and registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM, Read-Only Memory), programmable read-only memory (PROM, Programmable ROM), erasable programmable read-only memory (EPROM, Erasable PROM), electronically Erase programmable read-only memory (EEPROM, Electrically EPROM) or flash memory.
  • the volatile memory may be a random access memory (RAM, Random Access Memory), which is used as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM Synchlink DRAM
  • DR RAM Direct Rambus RAM
  • Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium may be applied to the network device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiments of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiments of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiments of the present application For the sake of brevity, I will not repeat them here.
  • An embodiment of the present application also provides a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. Repeat again.
  • the computer program product may be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, I will not repeat them here.
  • An embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiments of the present application.
  • the computer program runs on the computer, the computer is allowed to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. , Will not repeat them here.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiments of the present application.
  • the computer program runs on the computer, the computer is implemented by the mobile terminal/terminal device in performing various methods of the embodiments of the present application For the sake of brevity, I will not repeat them here.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a division of logical functions.
  • there may be other divisions for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application essentially or part of the contribution to the existing technology or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to enable a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application.
  • the foregoing storage media include various media that can store program codes, such as a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

Abstract

本申请公开了随机接入过程选择方法、装置、芯片及计算机程序，其中方法可包括：当系统同时配置了第一随机接入过程以及第二随机接入过程时，终端设备基于预定条件，选择通过第一随机接入过程或第二随机接入过程发起随机接入。应用本申请所述方案，可提升随机接入过程的效率等。

Description

随机接入过程选择方法、装置、芯片及计算机程序 技术领域
本申请涉及网络技术，特别涉及随机接入过程选择方法、装置、芯片及计算机程序。
背景技术
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，因此能够接收下行数据，但只有与小区取得上行同步，才能进行上行传输。
终端设备可通过随机接入过程(Random Access Procedure)与小区建立连接并取得上行同步。随机接入过程的主要目的如下：1)获得上行同步；2)为终端设备分配一个唯一的标识小区无线网络临时标识(C-RNTI，Cell Radio Network Temporary Identifier)。
随机接入过程通常由以下6类事件之一触发。
1)初始接入时建立无线连接，终端设备会从空闲(RRC_IDLE)状态转换到连接(RRC_CONNECTED)状态。
2)RRC连接重建过程(RRC Connection Re-establishment procedure)，以便终端设备在无线链路失败(Radio Link Failure)后重建无线连接，RRC是指无线资源控制(Radio Resource Control)。
3)切换(handover)，此时终端设备需要与新的小区建立上行同步。
4)RRC_CONNECTED状态下，下行数据到达如需要回复ACK/NACK时，上行处于“不同步”状态。
5)RRC_CONNECTED状态下，上行数据到达如需要上报测量报告或发送用户数据时，上行处于“不同步”状态或没有可用的物理上行链路控制信道(PUCCH，Physical Uplink Control CHannel)资源用于调度请求(SR，Scheduling Request)传输，此时允许已经处于上行同步状态的终端设备使用随机接入信道(RACH，Random Access Channel)来替代SR的作用。
6)RRC_CONNECTED状态下，为了定位终端设备，需要定时提前(timing advance)。
在第三代合作伙伴计划(3GPP，3rd Generation Partnership Project)协议中，支持基于四步的随机接入过程。为了缩短随机接入过程的时延，目前又提出了可将四步随机接入过程压缩为两步随机接入过程。那么，就会涉及到终端设备如何合理地选择所使用的随机接入过程的问题，而针对这一问题，目前还没有一种有效的实现方式。
发明内容
有鉴于此，本申请实施例提供了随机接入过程选择方法、装置、芯片及计算机程序。
第一方面，提供了一种随机接入过程选择方法，包括：
当系统同时配置了第一随机接入过程以及第二随机接入过程时，终端设备基于预定条件，选择通过所述第一随机接入过程或所述第二随机接入过程发起随机接入。
第二方面，提供了一种随机接入过程选择方法，包括：
网络侧为终端设备同时配置第一随机接入过程以及第二随机接入过程，用于终端设备在需要发起随机接入时，基于预定条件，选择通过所述第一随机接入过程或所述第二随机接入过程发起随机接入。
第三方面，提供了一种终端设备，用于执行上述第一方面或其各实现方式中的方法。
具体地，该终端设备包括用于执行上述第一方面或其各实现方式中的方法的功能模块。
第四方面，提供了一种网络设备，用于执行上述第二方面或其各实现方式中的方法。
具体地，该网络设备包括用于执行上述第二方面或其各实现方式中的方法的功能模块。
第五方面，提供了一种通信设备，包括处理器和存储器，该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第六方面，提供了一种芯片，用于实现上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
具体地，该芯片包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该芯片的设备执行如上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第七方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第八方面，提供了一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第九方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
基于上述介绍可以看出，采用本申请所述方案，当系统同时配置了第一随机接入过程以及第二随机接入过程时，终端设备可基于预定条件，选择通过第一随机接入过程或是第二随机接入过程发起随机接入，从而能够根据不同随机接入过程的特点，选择合理的随机接入过程，进而提升了随机接入过程的效率等。
附图说明
图1为本申请实施例提供的一种通信系统架构的示意性图。
图2为本申请实施例提供的四步随机接入过程的示意图。
图3为本申请实施例提供的终端设备300的示意性结构图。
图4为本申请实施例提供的网络设备400的示意性结构图。
图5为本申请实施例提供的通信设备600的示意性结构图。
图6为本申请实施例提供的芯片700的示意性结构图。
图7为本申请实施例提供的通信系统800的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(GSM，Global System of Mobile communication)系统、码分多址(CDMA，Code Division Multiple Access)系统、宽带码分多址(WCDMA，Wideband Code Division Multiple Access)系统、通用分组无线业务(GPRS，General Packet Radio Service)、长期演进(LTE，Long Term Evolution)系统、LTE频分双工(FDD，Frequency Division Duplex)系统、LTE时分双工(TDD，Time Division Duplex)、通用移动通信系统(UMTS，Universal Mobile Telecommunication System)、全球互联微波接入(WiMAX，Worldwide Interoperability for Microwave Access)通信系统或5G系统等。
示例性的，图1为本申请实施例提供的一种通信系统架构的示意性图。该通信系统100可以包括网络设备110，网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110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110可以是GSM系统或CDMA系统中的基站(BTS，Base Transceiver Station)，也可以是WCDMA系统中的基站(NB，NodeB)，还可以是LTE系统中的演进型基站(eNB或eNodeB，Evolutional Node B)，或者是云无线接入网络(CRAN，Cloud Radio Access Network)中的无线控制器，或者该网络设备可以为移动交换中心、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(PLMN，Public Land Mobile Network)中的网络设备等。
该通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备120。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(PSTN，Public Switched Telephone Networks)、数字用户线路(DSL，Digital Subscriber Line)、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(WLAN，Wireless Local Area Network)、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(IoT，Internet of Things)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(PCS，Personal Communications System)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(GPS，Global Positioning System)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(UE，User Equipment)、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(SIP，Session Initiation Protocol)电话、无线本地环路(WLL，Wireless Local Loop)站、个人数字处理(PDA，Personal Digital Assistant)、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，终端设备120之间可以进行终端直连(D2D，Device to Device)通信。
可选地，5G系统或5G网络还可以称为NR系统或NR网络。
本申请实施例的技术方案可以应用于免授权频谱，也可以应用于授权频谱，本 申请实施例对此并不限定。
图1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100可以包括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，本申请实施例对此不做限定。
可选地，该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统100为例，通信设备可包括具有通信功能的网络设备110和终端设备120，网络设备110和终端设备120可以为上文所述的具体设备，此处不再赘述；通信设备还可包括通信系统100中的其他设备，例如网络控制器、移动管理实体等其他网络实体，本申请实施例中对此不做限定。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
本申请实施例提供的随机接入过程选择方法中，当系统同时配置了第一随机接入过程以及第二随机接入过程时，终端设备可基于预定条件，选择通过第一随机接入过程或第二随机接入过程发起随机接入。
第一随机接入过程可包括：两步随机接入过程，第二随机接入过程可包括：四步随机接入过程。
图2为本申请实施例提供的四步随机接入过程的示意图。如图2所示，主要包括以下步骤1)～步骤4)，可分别称为Msg1～Msg4。
步骤1)：终端设备发送前导码(preamble)。
终端设备发送随机接入前导码(random access preamble)给基站(eNodeB)，通知eNodeB有一个随机接入请求，同时使得eNodeB能够估计其与终端设备之间的传输时延并以此校准上行定时(timing)。
步骤2)：eNodeB发送随机接入响应(RAR，Random Access Response)。
终端设备发送preamble之后，将在RAR时间窗(RA Response window)内监听物理下行控制信道(PDCCH，Physical Downlink Control Channel)，以接收对应随机接入无线网络临时标识(RA-RNTI，Radom Access-Radio Network Tempory Identity)的RAR，如果在此RAR时间窗内没有接收到eNodeB回复的RAR，则认为此次随机接入过程失 败。
当终端设备成功接收到一个RAR(使用前面介绍的RA-RNTI来解码)，且该RAR中的前导码索引(preamble index)与终端设备发送的preamble index相同时，则认为成功接收了RAR，此时终端设备可以停止监听RAR。
一个RAR消息中可以包含对多个发送preamble的用户的响应消息，对每一个用户的响应消息中可包含该用户采用的随机接入前导标识(RAPID，Random Access Preamble Identity)、Msg3的资源分配信息、定时提前(TA，Timing Advance)调整信息、临时C-RNTI(TC-RNTI，Temporal C-RNTI)等。在新无线(NR，New Radio)标准中，RAR消息采用下行控制信息(DCI，Downlink Control Information)format 1-0进行调度，且相应的PDCCH采用RA-RNTI加扰。
步骤3)：终端设备发送Msg3。
与随机接入的触发事件相对应，Msg3中携带的信息如下。
如果是初次接入(initial access)，Msg3为在公共控制信道(CCCH，Common Control CHannel)上传输的RRC连接请求(RRC Connection Request)，且至少需要携带非接入层(NAS，Non-Access Stratum)终端设备标识信息。
如果是RRC连接重建(RRC Connection Re-establishment)，Msg3为CCCH上传输的RRC Connection Re-establishment Request，且不携带任何NAS消息。
如果是切换，Msg3为在专用控制信道(DCCH，Dedicated Control CHannel)上传输的经过加密和完整性保护的RRC切换确认(RRC Handover Confirm)，需要包含终端设备的C-RNTI，如果可能的话，还需要携带缓存状态报告(BSR，Buffer Status Report)。
对于其它触发事件，则至少需要携带C-RNTI。
上行传输通常使用终端设备特定的信息，如C-RNTI，对上行共享信道(UL-SCH，Uplink Shared Channel)数据进行加扰，但此时冲突还未解决，加扰不能基于C-RNTI，只能使用TC-RNT，也就是说，Msg3只会使用TC-RNTI进行加扰。
步骤4)：eNodeB发送冲突解决(contention resolution)信息。
在步骤3)中终端设备会在Msg3有携带自己唯一的标识如C-RNTI，eNodeB在冲突解决机制中，会在Msg4中携带该唯一的标识以指定胜出的终端设备，而其它没有在冲突解决中胜出的终端设备将重新发起随机接入。Msg4的PDCCH采用TC-RNTI进行加扰。
为了缩短随机接入过程的时延，目前又提出了可将传统的四步随机接入过程压缩为两步随机接入过程，基本的思路是包含终端设备发送的新Msg1以及网络侧响应的新 Msg2。
一种可能的方法是新Msg1中包含preamble以及上行数据部分，其中上行数据部分承载终端设备的标识信息以及RRC请求的原因(也即四步随机接入过程中的Msg3的内容)，而新Msg2中包含冲突解决信息以及TA信息、C-RNTI的分配信息等，即包含四步随机接入过程中的Msg2和Msg4信息的各自部分信息的合集。
在两步随机接入过程中，与四步随机接入过程中的Msg2中可以包含多个用户的RAR响应消息不同，新Msg2携带单个用户发送的冲突解决信息(新Msg1中终端设备发送的终端设备标识相关的信息)、C-RNTI分配信息、TA信息，还可能包含RRC建立信息等。
两步随机接入过程通过将preamble以及数据(data)部分一起发送，可以有效缩短随机接入的时延。但是某些情况下，如信道质量不佳，或者其他用户也在发起随机接入导致相互干扰，此时如果采用两步随机接入过程进行随机接入可能反而更低效。这是由于对于终端设备而言，每一次新Msg1的发送都意味着preamble与data部分的同时发送，消耗的功率相比传统的四步随机接入的第一步仅发送preamble要高，因此，有必要对终端设备选择随机接入过程做一定的限定。
本实施例中，当系统同时配置了两步随机接入过程以及四步随机接入过程时，终端设备可基于预定条件，选择通过两步随机接入过程或四步随机接入过程发起随机接入。
其中，预定条件可包括以下之一或任意组合：参考信号接收功率(RSRP,
Reference Signal Receiving Power)的测量结果、参考信号接收质量(RSRQ，Reference Signal Receiving Quality)的测量结果、参考信号信干燥比(RS-SINR，Reference Signal-Signal to Interference plus Noise Ratio)的测量结果、终端设备的业务服务质量(QoS，Quality of Service)要求、终端设备的工作频段、终端设备的接入优先级等。终端设备的业务QoS要求可包括终端设备的业务时延要求。
终端设备可基于对主小区(Pcell，Primary cell)、主辅小区(Pscell，Primary Secondary Cell)或目标切换小区的测量得到RSRP的测量结果和/或RSRQ的测量结果和/或RS-SINR的测量结果。
当预定条件为RSRP的测量结果时，若RSRP的测量结果大于预先设定的第一阈值，可选择通过两步随机接入过程发起随机接入，否则，可选择通过四步随机接入过程发起随机接入。
当预定条件为RSRQ的测量结果时，若RSRQ的测量结果大于预先设定的第二阈值，可选择通过两步随机接入过程发起随机接入，否则，可选择通过四步随机接 入过程发起随机接入。
当预定条件为RS-SINR的测量结果时，若RS-SINR的测量结果大于预先设定的第三阈值，可选择通过两步随机接入过程发起随机接入，否则，可选择通过四步随机接入过程发起随机接入。
第一阈值、第二阈值和第三阈值为终端设备的信道质量阈值，较好的信道质量有利于两步随机接入过程的快速成功，发挥两步随机接入过程的效率优势，因此，当RSRP的测量结果大于第一阈值、RSRQ的测量结果大于第二阈值或RS-SINR的测量结果大于第三阈值时，可选择通过两步随机接入过程发起随机接入，否则，可选择通过四步随机接入过程发起随机接入。
当预定条件为终端设备的业务时延要求时，若终端设备的业务时延要求小于预先设定的第四阈值，可选择通过两步随机接入过程发起随机接入，否则，可选择通过四步随机接入过程发起随机接入。
第四阈值主要是考虑终端设备的业务时延要求，基于两步随机接入过程的特点，时延要求高则可选择通过两步随机接入过程发起随机接入，否则，可选择通过四步随机接入过程发起随机接入。
当预定条件为终端设备的工作频段时，若终端设备的工作频段为非授权频段，可选择通过两步随机接入过程发起随机接入，否则，即终端设备的工作频段为授权频段时，可选择通过四步随机接入过程发起随机接入。
当终端设备的工作频段为非授权频段时，两步随机接入可减少随机接入过程的信道侦听需求从而提升在非授权频段上的接入效率。
当预定条件为终端设备的接入优先级时，若终端设备的接入优先级大于预先设定的第五阈值，可选择通过两步随机接入过程发起随机接入，否则，可选择通过四步随机接入过程发起随机接入。
第五阈值主要是考虑对于高接入优先级的终端设备优先使用两步随机接入过程，可优先保证高接入优先级的终端设备的用户体验。
上述介绍的各预定条件也可结合使用，比如：预定条件中同时包括RSRP的测量结果以及RS-SINR的测量结果，那么，可以是在当RSRP的测量结果大于第一阈值且RS-SINR的测量结果大于第三阈值时，选择通过两步随机接入过程发起随机接入，或者，也可以是在当RSRP的测量结果以及RS-SINR的测量结果中的任意一个大于对应的阈值时，即选择通过两步随机接入过程发起随机接入，具体实现方式不限。
第一阈值、第二阈值、第三阈值、第四阈值和第五阈值可为网络侧通过系统消息或RRC信令预先通知给终端设备的，也可为终端设备与网络侧预先协议约定的。
以上主要是从终端设备一侧来对本申请所述方案进行说明，对于网络侧来说，网络侧可为终端设备同时配置第一随机接入过程以及第二随机接入过程，用于终端设备在需要发起随机接入时，基于预定条件，选择通过第一随机接入过程或第二随机接入过程发起随机接入。
第一随机接入过程可包括：两步随机接入过程，第二随机接入过程可包括：四步随机接入过程。
预定条件可包括以下之一或任意组合：RSRP的测量结果、RSRQ的测量结果、RS-SINR的测量结果、终端设备的业务QoS要求、终端设备的工作频段、终端设备的接入优先级等。
当预定条件中包括RSRP的测量结果、RSRQ的测量结果、RS-SINR的测量结果、终端设备的业务QoS要求以及终端设备的接入优先级中的至少一个时，网络侧可通过系统消息或RRC信令向终端设备发送预定条件对应的阈值，用于终端设备根据阈值选择通过第一随机接入过程或第二随机接入过程发起随机接入，具体实现请参照前述相关说明，不再赘述。
总之，采用本申请方法实施例所述方案，能够根据不同随机接入过程的特点，选择合理的随机接入过程，从而提升了随机接入过程的效率等。
以上是关于方法实施例的介绍，以下通过装置实施例，对本申请所述方案进行进一步说明。
图3为本申请实施例提供的终端设备300的示意性结构图。如图3所示，包括：选择单元301。
选择单元301，用于当系统同时配置了第一随机接入过程以及第二随机接入过程时，基于预定条件，选择通过第一随机接入过程或第二随机接入过程发起随机接入。
第一随机接入过程可包括：两步随机接入过程，第二随机接入过程可包括：四步随机接入过程。
预定条件可包括以下之一或任意组合：RSRP的测量结果、RSRQ的测量结果、RS-SINR的测量结果、终端设备的业务QoS要求、终端设备的工作频段、终端设备的接入优先级等。终端设备的业务QoS要求可包括终端设备的业务时延要求。
相应地，如图3所示，终端设备中还可进一步包括：获取单元302，用于基于 对Pcell、Pscell或目标切换小区的测量得到RSRP的测量结果和/或RSRQ的测量结果和/或RS-SINR的测量结果。
当预定条件为RSRP的测量结果时，若RSRP的测量结果大于预先设定的第一阈值，选择单元301可选择通过两步随机接入过程发起随机接入，否则，可选择通过四步随机接入过程发起随机接入。
当预定条件为RSRQ的测量结果时，若RSRQ的测量结果大于预先设定的第二阈值，选择单元301可选择通过两步随机接入过程发起随机接入，否则，可选择通过四步随机接入过程发起随机接入。
当预定条件为RS-SINR的测量结果时，若RS-SINR的测量结果大于预先设定的第三阈值，选择单元301可选择通过两步随机接入过程发起随机接入，否则，可选择通过四步随机接入过程发起随机接入。
当预定条件为终端设备的业务时延要求时，若终端设备的业务时延要求小于预先设定的第四阈值，选择单元301可选择通过两步随机接入过程发起随机接入，否则，可选择通过四步随机接入过程发起随机接入。
当预定条件为终端设备的工作频段时，若终端设备的工作频段为非授权频段，选择单元301可选择通过两步随机接入过程发起随机接入，否则，可选择通过四步随机接入过程发起随机接入。
当预定条件为终端设备的接入优先级时，若终端设备的接入优先级大于预先设定的第五阈值，选择单元301可选择通过两步随机接入过程发起随机接入，否则，可选择通过四步随机接入过程发起随机接入。
上述介绍的各预定条件也可结合使用，比如：预定条件中同时包括RSRP的测量结果以及RS-SINR的测量结果，那么，可以是在当RSRP的测量结果大于第一阈值且RS-SINR的测量结果大于第三阈值时，选择通过两步随机接入过程发起随机接入，或者，也可以是在当RSRP的测量结果以及RS-SINR的测量结果中的任意一个大于对应的阈值时，即选择通过两步随机接入过程发起随机接入，具体实现方式不限。
第一阈值、第二阈值、第三阈值、第四阈值和第五阈值可为网络侧通过系统消息或RRC信令通知给获取单元302，进而由获取单元302提供给选择单元301的，也可为终端设备与网络侧预先协议约定的。
图4为本申请实施例提供的网络设备400的示意性结构图。如图4所示，包括：配置单元401。
配置单元401，用于为终端设备同时配置第一随机接入过程以及第二随机接入过程，用于终端设备在需要发起随机接入时，基于预定条件，选择通过第一随机接入过程或第二随机接入过程发起随机接入。
第一随机接入过程可包括：两步随机接入过程，第二随机接入过程可包括：四步随机接入过程。
预定条件可包括以下之一或任意组合：RSRP的测量结果、RSRQ的测量结果、RS-SINR的测量结果、终端设备的业务QoS要求、终端设备的工作频段、终端设备的接入优先级等。其中，终端设备的业务QoS要求可包括终端设备的业务时延要求。
图4所示网络设备中还可进一步包括：发送单元402，用于当预定条件中包括RSRP的测量结果、RSRQ的测量结果、RS-SINR的测量结果、终端设备的业务QoS要求以及终端设备的接入优先级中的至少一个时，通过系统消息或RRC信令向终端设备发送预定条件对应的阈值，用于终端设备根据阈值选择通过第一随机接入过程或第二随机接入过程发起随机接入。
图3和图4所述装置实施例的具体工作流程请参照前述方法实施例中的相关说明，不再赘述。
图5为本申请实施例提供的通信设备600的示意性结构图。图5所示的通信设备600包括处理器610，处理器610可以从存储器620中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图5所示，通信设备600还可以包括存储器620。其中，处理器610可以从存储器620中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器620可以是独立于处理器610的一个单独的器件，也可以集成在处理器610中。
可选地，如图5所示，通信设备600还可以包括收发器630，处理器610可以控制该收发器630与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。
其中，收发器630可以包括发射机和接收机。收发器630还可以进一步包括天线，天线的数量可以为一个或多个。
可选地，该通信设备600具体可为本申请实施例的网络设备，并且该通信设备600可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该通信设备600具体可为本申请实施例的移动终端/终端设备，并且该 通信设备600可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
图6为本申请实施例提供的芯片700的示意性结构图。图6所示的芯片700包括处理器710，处理器710可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图6所示，芯片700还可以包括存储器720。其中，处理器710可以从存储器720中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器720可以是独立于处理器710的一个单独的器件，也可以集成在处理器710中。
可选地，该芯片700还可以包括输入接口730。其中，处理器710可以控制该输入接口730与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。
可选地，该芯片700还可以包括输出接口740。其中，处理器710可以控制该输出接口740与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。
可选地，该芯片可应用于本申请实施例中的网络设备，并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该芯片可应用于本申请实施例中的移动终端/终端设备，并且该芯片可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
图7为本申请实施例提供的通信系统800的示意性框图。如图7所示，该通信系统800包括终端设备810和网络设备820。
其中，该终端设备810可以用于实现上述方法中由终端设备实现的相应的功能，以及该网络设备820可以用于实现上述方法中由网络设备实现的相应的功能，为了简洁，在此不再赘述。
应理解，本申请实施例的处理器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，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(DSP，Digital Signal Processor)、专用集成电路(ASIC，Application Specific  Integrated Circuit)、现成可编程门阵列(FPGA，Field Programmable Gate Array)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。可以实现或者执行本申请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该处理器也可以是任何常规的处理器等。结合本申请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。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或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只读存储器(ROM，Read-Only Memory)、可编程只读存储器(PROM，Programmable ROM)、可擦除可编程只读存储器(EPROM，Erasable PROM)、电可擦除可编程只读存储器(EEPROM，Electrically EPROM)或闪存。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 RAM)、动态随机存取存储器(DRAM，Dynamic RAM)、同步动态随机存取存储器(SDRAM，Synchronous DRAM)、双倍数据速率同步动态随机存取存储器(DDR SDRAM，Double Data Rate SDRAM)、增强型同步动态随机存取存储器(ESDRAM，Enhanced SDRAM)、同步连接动态随机存取存储器(SLDRAM，Synchlink DRAM)和直接内存总线随机存取存储器(DR RAM，Direct Rambus RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。
可选的，该计算机可读存储介质可应用于本申请实施例中的网络设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序产品，包括计算机程序指令。
可选的，该计算机程序产品可应用于本申请实施例中的网络设备，并且该计算 机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序产品可应用于本申请实施例中的移动终端/终端设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的，该计算机程序可应用于本申请实施例中的网络设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序可应用于本申请实施例中的移动终端/终端设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (35)

  1. 一种随机接入过程选择方法，其特征在于，包括：
    当系统同时配置了第一随机接入过程以及第二随机接入过程时，终端设备基于预定条件，选择通过所述第一随机接入过程或所述第二随机接入过程发起随机接入。
  2. 根据权利要求1所述的方法，其特征在于，
    所述第一随机接入过程包括：两步随机接入过程；
    所述第二随机接入过程包括：四步随机接入过程。
  3. 根据权利要求2所述的方法，其特征在于，
    所述预定条件包括以下之一或任意组合：参考信号接收功率RSRP的测量结果；参考信号接收质量RSRQ的测量结果；参考信号信干燥比RS-SINR的测量结果；所述终端设备的业务服务质量QoS要求；所述终端设备的工作频段；所述终端设备的接入优先级。
  4. 根据权利要求3所述的方法，其特征在于，
    当所述预定条件为所述RSRP的测量结果时，所述终端设备基于预定条件，选择通过所述第一随机接入过程或所述第二随机接入过程发起随机接入包括：
    若所述RSRP的测量结果大于预先设定的第一阈值，则选择通过所述两步随机接入过程发起随机接入，否则，选择通过所述四步随机接入过程发起随机接入。
  5. 根据权利要求3所述的方法，其特征在于，
    当所述预定条件为所述RSRQ的测量结果时，所述终端设备基于预定条件，选择通过所述第一随机接入过程或所述第二随机接入过程发起随机接入包括：
    若所述RSRQ的测量结果大于预先设定的第二阈值，则选择通过所述两步随机接入过程发起随机接入，否则，选择通过所述四步随机接入过程发起随机接入。
  6. 根据权利要求3所述的方法，其特征在于，
    当所述预定条件为所述RS-SINR的测量结果时，所述终端设备基于预定条件，选择通过所述第一随机接入过程或所述第二随机接入过程发起随机接入包括：
    若所述RS-SINR的测量结果大于预先设定的第三阈值，则选择通过所述两步随机接入过程发起随机接入，否则，选择通过所述四步随机接入过程发起随机接入。
  7. 根据权利要求3所述的方法，其特征在于，
    所述终端设备的业务QoS要求包括：所述终端设备的业务时延要求；
    当所述预定条件为所述终端设备的业务时延要求时，所述终端设备基于预定条 件，选择通过所述第一随机接入过程或所述第二随机接入过程发起随机接入包括：
    若所述终端设备的业务时延要求小于预先设定的第四阈值，则选择通过所述两步随机接入过程发起随机接入，否则，选择通过所述四步随机接入过程发起随机接入。
  8. 根据权利要求3所述的方法，其特征在于，
    当所述预定条件为所述终端设备的工作频段时，所述终端设备基于预定条件，选择通过所述第一随机接入过程或所述第二随机接入过程发起随机接入包括：
    若所述终端设备的工作频段为非授权频段，则选择通过所述两步随机接入过程发起随机接入，否则，选择通过所述四步随机接入过程发起随机接入。
  9. 根据权利要求3所述的方法，其特征在于，
    当所述预定条件为所述终端设备的接入优先级时，所述终端设备基于预定条件，选择通过所述第一随机接入过程或所述第二随机接入过程发起随机接入包括：
    若所述终端设备的接入优先级大于预先设定的第五阈值，则选择通过所述两步随机接入过程发起随机接入，否则，选择通过所述四步随机接入过程发起随机接入。
  10. 根据权利要求3～9中任一项所述的方法，其特征在于，
    该方法进一步包括：所述终端设备基于对主小区Pcell、主辅小区Pscell或目标切换小区的测量得到所述RSRP的测量结果和/或所述RSRQ的测量结果和/或所述RS-SINR的测量结果。
  11. 根据权利要求4～7以及9中任一项所述的方法，其特征在于，
    所述阈值为网络侧通过系统消息或无线资源控制RRC信令通知给所述终端设备的；
    或者，所述阈值为所述终端设备与网络侧预先协议约定的。
  12. 一种随机接入过程选择方法，其特征在于，包括：
    网络侧为终端设备同时配置第一随机接入过程以及第二随机接入过程，用于终端设备在需要发起随机接入时，基于预定条件，选择通过所述第一随机接入过程或所述第二随机接入过程发起随机接入。
  13. 根据权利要求12所述的方法，其特征在于，
    所述第一随机接入过程包括：两步随机接入过程；
    所述第二随机接入过程包括：四步随机接入过程。
  14. 根据权利要求13所述的方法，其特征在于，
    所述预定条件包括以下之一或任意组合：参考信号接收功率RSRP的测量结果；参考信号接收质量RSRQ的测量结果；参考信号信干燥比RS-SINR的测量结果；所述终端设备的业务服务质量QoS要求；所述终端设备的工作频段；所述终端设备的接入优先级。
  15. 根据权利要求14所述的方法，其特征在于，
    该方法进一步包括：当所述预定条件中包括所述RSRP的测量结果、所述RSRQ的测量结果、所述RS-SINR的测量结果、所述终端设备的业务QoS要求以及所述终端设备的接入优先级中的至少一个时，所述网络侧通过系统消息或无线资源控制RRC信令向所述终端设备发送所述预定条件对应的阈值，用于所述终端设备根据所述阈值选择通过所述第一随机接入过程或所述第二随机接入过程发起随机接入。
  16. 一种终端设备，其特征在于，包括：选择单元；
    所述选择单元，用于当系统同时配置了第一随机接入过程以及第二随机接入过程时，基于预定条件，选择通过所述第一随机接入过程或所述第二随机接入过程发起随机接入。
  17. 根据权利要求16所述的终端设备，其特征在于，
    所述第一随机接入过程包括：两步随机接入过程；
    所述第二随机接入过程包括：四步随机接入过程。
  18. 根据权利要求17所述的终端设备，其特征在于，
    所述预定条件包括以下之一或任意组合：参考信号接收功率RSRP的测量结果；参考信号接收质量RSRQ的测量结果；参考信号信干燥比RS-SINR的测量结果；所述终端设备的业务服务质量QoS要求；所述终端设备的工作频段；所述终端设备的接入优先级。
  19. 根据权利要求18所述的终端设备，其特征在于，
    当所述预定条件为所述RSRP的测量结果时，若所述RSRP的测量结果大于预先设定的第一阈值，则所述选择单元选择通过所述两步随机接入过程发起随机接入，否则，选择通过所述四步随机接入过程发起随机接入。
  20. 根据权利要求18所述的终端设备，其特征在于，
    当所述预定条件为所述RSRQ的测量结果时，若所述RSRQ的测量结果大于预先设定的第二阈值，则所述选择单元选择通过所述两步随机接入过程发起随机接入，否则，选择通过所述四步随机接入过程发起随机接入。
  21. 根据权利要求18所述的终端设备，其特征在于，
    当所述预定条件为所述RS-SINR的测量结果时，若所述RS-SINR的测量结果大于预先设定的第三阈值，则所述选择单元选择通过所述两步随机接入过程发起随机接入，否则，选择通过所述四步随机接入过程发起随机接入。
  22. 根据权利要求18所述的终端设备，其特征在于，
    所述终端设备的业务QoS要求包括：所述终端设备的业务时延要求；
    当所述预定条件为所述终端设备的业务时延要求时，若所述终端设备的业务时延要求小于预先设定的第四阈值，则所述选择单元选择通过所述两步随机接入过程发起随机接入，否则，选择通过所述四步随机接入过程发起随机接入。
  23. 根据权利要求18所述的终端设备，其特征在于，
    当所述预定条件为所述终端设备的工作频段时，若所述终端设备的工作频段为非授权频段，则所述选择单元选择通过所述两步随机接入过程发起随机接入，否则，选择通过所述四步随机接入过程发起随机接入。
  24. 根据权利要求18所述的终端设备，其特征在于，
    当所述预定条件为所述终端设备的接入优先级时，若所述终端设备的接入优先级大于预先设定的第五阈值，则所述选择单元选择通过所述两步随机接入过程发起随机接入，否则，选择通过所述四步随机接入过程发起随机接入。
  25. 根据权利要求18～24中任一项所述的终端设备，其特征在于，
    所述终端设备中进一步包括：获取单元；
    所述获取单元，用于基于对主小区Pcell、主辅小区Pscell或目标切换小区的测量得到所述RSRP的测量结果和/或所述RSRQ的测量结果和/或所述RS-SINR的测量结果。
  26. 根据权利要求19～22以及24中任一项所述的终端设备，其特征在于，
    所述阈值为网络侧通过系统消息或无线资源控制RRC信令通知给所述获取单元的；
    或者，所述阈值为所述终端设备与网络侧预先协议约定的。
  27. 一种网络设备，其特征在于，包括：配置单元；
    所述配置单元，用于为终端设备同时配置第一随机接入过程以及第二随机接入过程，用于终端设备在需要发起随机接入时，基于预定条件，选择通过所述第一随机接入过程或所述第二随机接入过程发起随机接入。
  28. 根据权利要求27所述的网络设备，其特征在于，
    所述第一随机接入过程包括：两步随机接入过程；
    所述第二随机接入过程包括：四步随机接入过程。
  29. 根据权利要求28所述的网络设备，其特征在于，
    所述预定条件包括以下之一或任意组合：参考信号接收功率RSRP的测量结果；参考信号接收质量RSRQ的测量结果；参考信号信干燥比RS-SINR的测量结果；所述终端设备的业务服务质量QoS要求；所述终端设备的工作频段；所述终端设备的接入优先级。
  30. 根据权利要求29所述的网络设备，其特征在于，
    所述网络设备中进一步包括：发送单元；
    所述发送单元，用于当所述预定条件中包括所述RSRP的测量结果、所述RSRQ的测量结果、所述RS-SINR的测量结果、所述终端设备的业务QoS要求以及所述终端设备的接入优先级中的至少一个时，通过系统消息或无线资源控制RRC信令向所述终端设备发送所述预定条件对应的阈值，用于所述终端设备根据所述阈值选择通过所述第一随机接入过程或所述第二随机接入过程发起随机接入。
  31. 一种通信设备，其特征在于，包括：处理器和存储器，所述存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求1至15中任一项所述的方法。
  32. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求1至15中任一项所述的方法。
  33. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求1至15中任一项所述的方法。
  34. 一种计算机程序产品，其特征在于，包括计算机程序指令，所述计算机程序指令使得计算机执行如权利要求1至15中任一项所述的方法。
  35. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求1至15中任一项所述的方法。
PCT/CN2018/118628 2018-11-30 2018-11-30 随机接入过程选择方法、装置、芯片及计算机程序 WO2020107416A1 (zh)

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CA3121400A CA3121400A1 (en) 2018-11-30 2018-11-30 Random access process selection method and apparatus, chip, and computer program
SG11202105619VA SG11202105619VA (en) 2018-11-30 2018-11-30 Random access process selection method and apparatus, chip, and computer program
PCT/CN2018/118628 WO2020107416A1 (zh) 2018-11-30 2018-11-30 随机接入过程选择方法、装置、芯片及计算机程序
BR112021010314-7A BR112021010314A2 (pt) 2018-11-30 2018-11-30 Método para selecionar um procedimento de acesso aleatório, dispositivo terminal, e dispositivo de rede
EP18941867.6A EP3879883A4 (en) 2018-11-30 2018-11-30 METHOD AND DEVICE FOR SELECTING RANDOM ACCESS METHOD, CHIP AND COMPUTER PROGRAM
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