WO2022141277A1 - 一种随机接入方法、电子设备及存储介质 - Google Patents

一种随机接入方法、电子设备及存储介质 Download PDF

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Publication number
WO2022141277A1
WO2022141277A1 PCT/CN2020/141746 CN2020141746W WO2022141277A1 WO 2022141277 A1 WO2022141277 A1 WO 2022141277A1 CN 2020141746 W CN2020141746 W CN 2020141746W WO 2022141277 A1 WO2022141277 A1 WO 2022141277A1
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WIPO (PCT)
Prior art keywords
repeated transmission
random access
msg3
last
terminal device
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PCT/CN2020/141746
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English (en)
French (fr)
Inventor
贺传峰
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Oppo广东移动通信有限公司
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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/CN2020/141746 priority Critical patent/WO2022141277A1/zh
Priority to EP20967617.0A priority patent/EP4266769A4/en
Priority to CN202080105408.9A priority patent/CN116134906A/zh
Publication of WO2022141277A1 publication Critical patent/WO2022141277A1/zh
Priority to US18/215,659 priority patent/US20230345525A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • H04L1/189Transmission or retransmission of more than one copy of a message
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • H04W74/004Transmission of channel access control information in the uplink, i.e. towards network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • H04L1/1887Scheduling and prioritising arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • H04L1/1896ARQ related signaling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/001Synchronization between nodes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0808Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a random access method, an electronic device, and a storage medium.
  • the method of repeated transmission of Msg1 and/or repeated transmission of Msg3 can be adopted; when performing repeated transmission of Msg1 and/or Msg3, how to improve the success rate of random access is always the goal that is pursued.
  • Embodiments of the present application provide a random access method, an electronic device, and a storage medium, which can improve the success rate of random access.
  • an embodiment of the present application provides a random access method, including: a terminal device determining a start time of a contention resolution timer according to the time when Msg3 is repeatedly transmitted.
  • an embodiment of the present application provides a random access method, including: a terminal device determining a start time of a random access response time window according to a random access opportunity corresponding to repeated transmission of Msg1.
  • an embodiment of the present application provides a random access method, including: a network device determining a start time of a contention resolution timer according to the time when Msg3 is repeatedly transmitted.
  • an embodiment of the present application provides a random access method, including: a network device determining a start time of a random access response time window according to a random access opportunity corresponding to the repeated transmission message Msg1.
  • an embodiment of the present application provides a terminal device, where the terminal device includes: a first processing unit configured to determine the start time of the contention resolution timer according to the time when Msg3 is repeatedly transmitted.
  • an embodiment of the present application provides a terminal device, where the terminal device includes: a second processing unit configured to determine the start time of the random access response time window according to the random access opportunity corresponding to the repeated transmission of Msg1.
  • an embodiment of the present application provides a network device, where the network device includes: a third processing unit that determines the start time of the contention resolution timer according to the time when Msg3 is repeatedly transmitted.
  • an embodiment of the present application provides a network device, where the network device includes: a fourth processing unit configured to determine the start time of the random access response time window according to the random access opportunity corresponding to the repeated transmission of Msg1 . .
  • an embodiment of the present application provides a terminal device, including a processor and a memory for storing a computer program that can be executed on the processor, wherein the processor is configured to execute the above-mentioned terminal when the computer program is executed. The steps of the random access method performed by the device.
  • an embodiment of the present application provides a network device, including a processor and a memory for storing a computer program that can be run on the processor, wherein the processor is configured to execute the above network when running the computer program. The steps of the random access method performed by the device.
  • an embodiment of the present application provides a chip, including: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the random access method performed by the terminal device.
  • an embodiment of the present application provides a chip, including: a processor configured to call and run a computer program from a memory, so that a device installed with the chip executes the random access method performed by the network device.
  • an embodiment of the present application provides a storage medium that stores an executable program, and when the executable program is executed by a processor, implements the random access method executed by the terminal device.
  • an embodiment of the present application provides a storage medium that stores an executable program, and when the executable program is executed by a processor, implements the random access method performed by the foregoing network device.
  • an embodiment of the present application provides a computer program product, including computer program instructions, the computer program instructions enable a computer to execute the random access method executed by the above-mentioned terminal device.
  • an embodiment of the present application provides a computer program product, including computer program instructions, and the computer program instructions cause a computer to execute the random access method executed by the foregoing network device.
  • an embodiment of the present application provides a computer program, where the computer program enables a computer to execute the random access method executed by the above-mentioned terminal device.
  • an embodiment of the present application provides a computer program, where the computer program enables a computer to execute the random access method executed by the foregoing network device.
  • the random access method, electronic device, and storage medium provided by the embodiments of the present application include: the terminal device or the network device determines the start time of the contention resolution timer according to the time of repeated transmission of Msg3; The corresponding random access timing determines the start time of the random access response time window; avoids the problem of Msg2 reception failure caused by inconsistent understanding of the RAR window between the terminal device and the network device, and avoids the terminal device and the network device. Understand the problem of Msg4 reception failure caused by inconsistency, and then improve the success rate of random access.
  • FIG. 1 is a schematic diagram of a processing flow of a four-step random access process according to an embodiment of the present application
  • FIG. 2 is an optional schematic diagram of the RAR time window of the application
  • FIG. 3 is a schematic diagram of the composition and structure of a communication system according to an embodiment of the present application.
  • FIG. 4 is an optional processing flow of the random access method applied to a terminal device provided by an embodiment of the present application
  • FIG. 5 is a schematic diagram illustrating that a terminal device according to an embodiment of the present application determines the start time of the contention resolution timer according to the time of each repeated transmission of Msg3;
  • FIG. 6 is a schematic diagram of determining the start time of the contention resolution timer according to the time of repeated transmission of Msg3 each time by a terminal device according to an embodiment of the present application;
  • FIG. 7 is a schematic diagram of determining the start time of the contention resolution timer according to the time of the last repeated transmission of Msg3 in each repeated transmission set by a terminal device according to an embodiment of the present application;
  • FIG. 8 is an optional schematic diagram of a terminal device terminating repeated transmission according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of another optional processing flow of the random access method applied to a terminal device provided by an embodiment of the present application;
  • FIG. 11 is an optional schematic diagram of a terminal device repeatedly transmitting Msg1 in the prior art
  • FIG. 12 is a schematic diagram of an optional processing flow of a random access method applied to a network device provided by an embodiment of the present application;
  • FIG. 13 is a schematic diagram of another optional processing flow of the random access method applied to a network device provided by an embodiment of the present application;
  • FIG. 14 is a schematic structural diagram of an optional composition of a terminal device provided by an embodiment of the present application.
  • FIG. 15 is a schematic diagram of another optional composition structure of a terminal device provided by an embodiment of the present application.
  • FIG. 16 is a schematic diagram of an optional composition structure of a network device provided by an embodiment of the present application.
  • FIG. 17 is a schematic diagram of another optional composition structure of a network device provided by an embodiment of the present application.
  • FIG. 18 is a schematic structural diagram of a hardware composition of an electronic device provided by an embodiment of the present application.
  • the New Radio (New Radio, NR) system is mainly designed to support the Enhanced Mobile Broadband (eMBB) service, in order to meet the requirements of high speed, high spectral efficiency and large bandwidth.
  • eMBB Enhanced Mobile Broadband
  • there are many different types of services such as sensor networks, video surveillance, and wearables. These services are different from eMBB services in terms of speed, bandwidth, power consumption, and cost. demand.
  • the capability requirements of these services on terminal equipment are lower than those of eMBB services. These services can allow the bandwidth supported by the terminal equipment to be reduced, the processing time to be relaxed, the number of antennas to be reduced, and the maximum modulation order to be relaxed.
  • Such terminal devices may be referred to as low-capability (Reduced Capability, RedCap) terminal devices for short.
  • the NR system needs to be optimized for these services and the corresponding low-capacity terminal equipment.
  • MTC Machine Type Communication
  • NB-IoT Narrow Band Internet of Things
  • MTC Machine Type Communication
  • NB-IoT Narrow Band Internet of Things
  • coverage enhancement of the NR system is used to improve the downlink coverage and uplink coverage of the low-complexity and low-cost terminal equipment.
  • the network device sends the uplink grant (UL grant) through the downlink control information (Downlink Control Information, DCI), which is used to schedule the terminal device to transmit the physical uplink shared channel (Physical Uplink Shared CHannel, PUSCH); wherein, DCI can be DCI format 0_0 or DCI format 0_1.
  • DCI Downlink Control Information
  • the DCI When a network device schedules uplink data transmission through DCI, the DCI will carry a Time Domain Resource Allocation (TDRA) field.
  • the TDRA field is 4 bits and can indicate 16 resources in a resource allocation table. In different rows, each row contains different resource allocation combinations, such as the starting position S of the PUSCH, the length L, k2, and the types (types) of different PUSCH time-domain resource allocations. Wherein, k2 represents the number of offset slots between the time slot (slot) where the DCI is located and the slot where the PUSCH scheduled by the DCI is located.
  • the mapping types of PUSCH include Type A and Type B; the difference between Type A and Type B is that the corresponding S and L candidate values of the two methods have different value ranges; Type A is mainly for slot-based business, S is relatively high, and L is relatively long. Type B is mainly oriented to URLLC services and has higher requirements for delay, so the position of S is more flexible to transmit URLLC services that arrive at any time, and L is shorter, which can reduce the transmission delay.
  • Valid S and L optional value range combinations are shown in Table 1 below.
  • the time domain resource allocation parameters of PUSCH are shown in Table 2 below, which is the default PUSCH time domain resource configuration A of the normal cyclic prefix. Specifically, one kind of time domain resource information in Table 2 can be indicated through DCI.
  • the four-step random access process of the NR system includes:
  • the terminal device sends a PRACH to the network device, and the PRACH includes a random access preamble (preamble); that is, the terminal device sends a message 1 (message 1, Msg1) to the network device, and Msg1 carries the preamble.
  • preamble random access preamble
  • the network device After the network device detects that the terminal device sends a preamble, it sends a random access response (Random Access Response, RAR) to the terminal device, that is, the network device sends Msg2 to the terminal device to inform the terminal device that it can use when sending Msg3.
  • RAR Random Access Response
  • PUSCH resources allocate a temporary wireless network temporary identifier (Radio Network Tempory Identity, RNTI) to the terminal device, and provide the terminal device with a time advance command, etc.
  • RNTI Radio Network Tempory Identity
  • the terminal device After receiving the RAR message, the terminal device sends a Msg3 message on the PUSCH resource specified by the RAR message, and the Msg3 message carries a terminal device-specific temporary identification information.
  • the network device sends an Msg4 message to the terminal device, including a contention resolution message, and allocates uplink transmission resources to the terminal device.
  • the terminal device receives the Msg4 sent by the network device, it will detect whether the terminal device-specific temporary identifier sent by the terminal device in Msg3 is included in the contention resolution message sent by the network device; if it is included, it indicates that the random access process of the terminal device is successful; otherwise , it is considered that the random process fails, and the terminal device needs to initiate the random access process from the first step again.
  • one solution is to improve the uplink coverage of the terminal equipment by retransmitting (HARQ) Msg3 (Hybrid Automatic Repeat reQuest, HARQ).
  • HARQ Hybrid Automatic Repeat reQuest
  • the network device sends a DCI to the terminal device, and schedules the terminal device to repeatedly transmit Msg3 once.
  • the applicant found that every time the repeated transmission of Msg3 is implemented through a DCI scheduling, the system resources are greatly consumed; therefore, the applicant proposes to repeat the transmission of Msg3 and/or Msg1. Improve the uplink coverage of the terminal device; specifically, the network device sends retransmission indication information once to indicate X repetitions of Msg3, where the X repetitions of Msg3 may be referred to as a repetition transmission set.
  • This application clarifies how to determine the random access response (Random Access Response, RAR) time window (window) and the contention resolution time window (the time to restart the contention resolution timer) when there are multiple repeated transmissions in a repeated transmission set, and When there are multiple repeated transmission sets, how to determine the RAR window and the contention resolution time window (the time to restart the contention resolution timer); it can avoid the problem of Msg2 reception failure caused by the inconsistent understanding of the RAR window between the terminal device and the network device, and avoid and The problem of Msg4 reception failure caused by inconsistent understanding of the contention resolution time window between the terminal device and the network device.
  • RAR Random Access Response
  • the RAR time window will be described below.
  • the network device instructs the terminal device to receive the configuration information (ra-SearchSpace) of the search space of the PDCCH required by the RAR through the system message.
  • RAR information Specifically, within the RAR time window, the network device sends the scrambled RA-RNTI to the terminal device through the PDCCH bearing DCI format 1-0.
  • the search space configured by ra-SearchSpace is Type1-PDCCH common search space.
  • the RAR time window is configured through the high-level parameter ra-ResponseWindow.
  • the RAR time window starts from the first symbol of the nearest resource control set (Control Resource Set, CORESET) after at least one symbol after the last symbol of the random access opportunity.
  • CORESET is the CORESET configured by the ra-SearchSpace configuration information.
  • the configuration information of the RAR time window is as follows:
  • sl80 indicates that the length of the RAR time window is 80 time slots (slots).
  • the RAR time window is up to 10ms.
  • the size of the RAR window is 10 slots, and the subcarrier interval is 15kHz.
  • the RAR window starts from the first symbol in the earliest CORESET after at least one symbol after the last symbol of the PRACH occasion, where the CORESET is the time-frequency resource configured by the Type1-PDCCH common search space for receiving PDCCH.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • long term evolution long term evolution
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • FDD frequency division duplex
  • TDD Time division duplex
  • LTE-A advanced long term evolution
  • NR new radio
  • evolution systems of NR systems LTE on unlicensed bands (LTE-based access to unlicensed spectrum, LTE-U) system, NR (NR-based access to unlicensed spectrum, NR-U) system on unlicensed frequency bands, universal mobile telecommunication system (UMTS), global Worldwide interoperability for microwave access (WiMAX) communication systems, wireless local area networks (WLAN), wireless fidelity (WiFi), next-generation communication systems or other communication systems, etc.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • the network equipment involved in the embodiments of this application may be a common base station (such as a NodeB or eNB or gNB), a new radio controller (NR controller), a centralized network element (centralized unit), a new radio base station, Remote radio module, micro base station, relay, distributed unit (distributed unit), reception point (transmission reception point, TRP), transmission point (transmission point, TP) or any other equipment.
  • a common base station such as a NodeB or eNB or gNB
  • NR controller new radio controller
  • a centralized network element centralized unit
  • a new radio base station Remote radio module
  • micro base station relay, distributed unit (distributed unit)
  • reception point transmission reception point
  • TRP transmission point
  • TP transmission point
  • the terminal device may be any terminal, for example, the terminal device may be user equipment of machine type communication. That is to say, the terminal device can also be called user equipment UE, mobile station (mobile station, MS), mobile terminal (mobile terminal), terminal (terminal), etc. network, RAN) communicates with one or more core networks, for example, the terminal device can be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc., for example, the terminal device can also be a portable, pocket-sized , handheld, computer built-in or vehicle mounted mobile devices that exchange language and/or data with the radio access network.
  • the terminal device may be any terminal, for example, the terminal device may be user equipment of machine type communication. That is to say, the terminal device can also be called user equipment UE, mobile station (mobile station, MS), mobile terminal (mobile terminal), terminal (terminal), etc. network, RAN) communicates with one or more core networks, for example, the terminal device can be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc
  • network equipment and terminal equipment can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and artificial satellites in the air.
  • the embodiments of the present application do not limit the application scenarios of the network device and the terminal device.
  • communication between the network device and the terminal device and between the terminal device and the terminal device can be performed through licensed spectrum (licensed spectrum), or through unlicensed spectrum (unlicensed spectrum), or both through licensed spectrum and unlicensed spectrum for communications.
  • Communication between network equipment and terminal equipment and between terminal equipment and terminal equipment can be carried out through the spectrum below 7 gigahertz (GHz), or through the frequency spectrum above 7 GHz, and can also use the frequency spectrum below 7 GHz and the frequency spectrum at the same time.
  • the spectrum above 7GHz is used for communication.
  • the embodiments of the present application do not limit the spectrum resources used between the network device and the terminal device.
  • D2D device to device
  • M2M machine to machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • the communication system 100 applied in this embodiment of the present application is as shown in FIG. 3 .
  • 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, a terminal).
  • the network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.
  • the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device can be a mobile switching center, relay station, access point, in-vehicle equipment, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolved Public Land Mobile Network (PLMN), etc.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • LTE Long Term Evolutional Node B, eNB or eNodeB
  • CRAN Cloud Radio Access Network
  • the network device can be a mobile switching center, relay station, access point, in-vehicle equipment, Wearable devices, hub
  • the communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110 .
  • terminal equipment includes, but is not limited to, connections via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connections and/or another data connection/network; and/or via a wireless interface, e.g. for cellular networks, Wireless Local Area Networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM- An FM broadcast transmitter; and/or a device of another terminal device configured to receive/transmit communication signals; and/or an Internet of Things (IoT) device.
  • PSTN Public Switched Telephone Networks
  • DSL Digital Subscriber Line
  • WLAN Wireless Local Area Networks
  • DVB-H Digital Video Broadband
  • satellite networks satellite networks
  • AM- An FM broadcast transmitter AM- An FM broadcast transmitter
  • IoT Internet of Things
  • a terminal device arranged to communicate via 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 telephones; Personal Communications System (PCS) terminals that may combine cellular radio telephones with data processing, fax, and data communications capabilities; may include radio telephones, pagers, Internet/Intranet PDAs with networking access, web browsers, memo pads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or others including radiotelephone transceivers electronic device.
  • PCS Personal Communications System
  • GPS Global Positioning System
  • Terminal equipment may refer to an access terminal, user equipment (UE), subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a 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 in future evolved PLMNs, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • direct terminal (Device to Device, D2D) communication may be performed between the terminal devices 120 .
  • the 5G system or 5G network may also be referred to as a new radio (New Radio, NR) system or NR network.
  • New Radio NR
  • FIG. 3 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. 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 are not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • a device having a communication function in the network/system may be referred to as a communication device.
  • 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 other network entities such as a network controller, a mobility management entity, etc., which are not limited in this embodiment of the present application.
  • An optional processing flow of the random access method applied to a terminal device provided by the embodiment of the present application, as shown in FIG. 4 includes the following steps:
  • Step S201 the terminal device determines the start time of the contention resolution timer according to the time when the Msg3 is repeatedly transmitted.
  • the coverage performance of the RedCap terminal device is improved by repeating the transmission (Repitition) Msg3.
  • the terminal device receives first indication information sent by the network device, where the first indication information is used to indicate the number of times the Msg3 is repeatedly transmitted. If the first indication information indicates that the number of times of repeated transmission of Msg3 is N times, the repeated transmission of Msg3 for N times may be referred to as a first repeated transmission set (set) or a first repeated transmission cluster (bundle); One piece of information (the first indication information) indicates that, compared with the prior art, each time the repeated transmission of Msg3 is scheduled by one DCI, network resources can be saved.
  • the first indication information may be carried in at least one of the following information: the first higher layer signaling, the uplink grant borne by the RAR, and the first DCI.
  • the terminal device can determine the moment of repeated transmission of Msg3 according to the number of times of repeated transmission of Msg3 indicated by the first indication information and the time domain resource indicated by the RAR. For example, if the first indication information indicates that the number of times of repeated transmission of Msg3 is 3 times, the terminal device repeatedly transmits Msg3 in three consecutive uplink time slots.
  • the terminal device determines the start time of the contention resolution timer (ra-Contention Resolution) timer according to the time when the Msg3 is repeatedly transmitted each time.
  • the terminal device starts the ra-Contention Resolution timer at the first symbol after each repeated transmission of Msg3;
  • the duration of the Contention Resolution timer can be the same.
  • the terminal device determines the start time of the contention resolution timer according to the time of each repeated transmission of Msg3. As shown in Figure 5, when the terminal device repeatedly transmits Msg3 each time, even if the The ra-Contention Resolution timer has not expired, and the ra-Contention Resolution timer is restarted at the first symbol after this repeated transmission of Msg3; and the ra-Contention Resolution timer started by the last repeated transmission of Msg3 will not continue. timing.
  • the terminal device determines the start time of the contention resolution timer according to the time of the last repeated transmission of Msg3 in all the first repeated transmission sets.
  • the network device may send first indication information to the terminal device, where the first indication information is used to instruct the terminal device to perform N times of repeated transmission of Msg3, which is referred to as a first repeated transmission set. If the network device still fails to receive Msg3 after the transmission of the first repeated transmission set is completed, and the ra-Contention Resolution timer does not expire, the network device may send second indication information to the terminal device, and the second indication information may be carried in the first In the second DCI, the second DCI is used to schedule the terminal device to repeatedly transmit the Msg3 again.
  • the number of times that the terminal device repeatedly transmits the Msg3 may be determined by one of the following information: the number of times the network device instructs the last time to transmit the Msg3 repeatedly, the second higher layer signaling and the second DCI. That is, the number of times that the terminal device repeatedly transmits the Msg3 may be the same as the number of times that the Msg3 was repeatedly transmitted last time; or, the terminal device receives the second higher layer signaling or the second DCI sent by the network device, and determines the number of times that the terminal device repeatedly transmits the Msg3 according to the second higher layer signaling or the second DCI. Therefore, the terminal device may transmit one first repeated transmission set according to the instruction of the network device, or may transmit two or more first repeated transmission sets. Wherein, each first repeated transmission set may include multiple repeated transmissions of Msg3. The terminal device starts the ra-Contention Resolution timer on the first symbol after the last repeated transmission of Msg3.
  • the terminal device determines the start time of the contention resolution timer according to the time of each repeated transmission of Msg3, as shown in FIG. If the indication information indicates that the number of times of repeated transmission of Msg3 is 4 times, the terminal device restarts the ra-Contention Resolution timer only at the first symbol after the fourth repeated transmission of Msg3 (that is, the last time).
  • the terminal device determines the start time of the contention resolution timer according to the time of the last repeated transmission of Msg3 in each first repeated transmission set.
  • the network device may send first indication information to the terminal device, where the first indication information is used to instruct the terminal device to perform N times of repeated transmission of Msg3, which is referred to as a first repeated transmission set. If the network device still fails to receive Msg3 after the transmission of the first repeated transmission set is completed, and the ra-Contention Resolution timer does not expire, the network device may send second indication information to the terminal device, and the second indication information may be carried in the first In the second DCI, the second DCI is used to schedule the terminal device to repeatedly transmit the Msg3 again.
  • the number of times that the terminal device repeatedly transmits the Msg3 may be determined by one of the following information: the number of times the network device instructs the last time to transmit the Msg3 repeatedly, the second higher layer signaling and the second DCI. That is, the number of times that the terminal device repeatedly transmits the Msg3 may be the same as the number of times that the Msg3 was repeatedly transmitted last time; or, the terminal device receives the second higher layer signaling or the second DCI sent by the network device, and determines the number of times that the terminal device repeatedly transmits the Msg3 according to the second higher layer signaling or the second DCI. Therefore, the terminal device may transmit one first repeated transmission set according to the instruction of the network device, or may transmit two or more first repeated transmission sets.
  • each first repeated transmission set may include multiple repeated transmissions of Msg3.
  • the terminal device starts the ra-Contention Resolution timer at the first symbol after the last repeated transmission of Msg3 in each first repeated transmission set; the duration of the ra-Contention Resolution timer restarted by the terminal device each time is the same as the last restart.
  • the duration of the ra-Contention Resolution timer can be the same.
  • the terminal equipment determines the start time of the contention resolution timer according to the time of the last repeated transmission of Msg3 in each repeated transmission set, as shown in FIG. 7 . It is shown that the network device indicates the first repeated transmission set through the first indication information, and the number of times of repeated transmission of Msg3 in the first repeated transmission set is 4, then the terminal device repeats the transmission of Msg3 for the fourth time in the first repeated transmission set. The first symbol restarts the ra-Contention Resolution timer.
  • the network device Since the network device still fails to receive the Msg3 after the transmission of the first repeated transmission set is completed, and the ra-Contention Resolution timer has not expired, the network device sends a second message to the terminal device for scheduling the terminal device to repeat the transmission of the Msg3 again.
  • DCI the terminal device repeats the transmission of the Msg3 based on the second indication information; the terminal device determines that the number of times of repeated transmission of Msg3 is the same as the number of times of repeated transmission of Msg3 last time, then the terminal repeats the transmission of Msg3 for the fourth time
  • the first symbol after repeated transmission of Msg3 restarts the ra-Contention Resolution timer.
  • the terminal device if the terminal device receives Msg4 and/or the physical downlink control channel PDCCH scheduling Msg4 before the repeated transmission of Msg3 ends, the terminal device stops the repeated transmission of Msg3.
  • the terminal device after the terminal device starts or restarts the ra-Contention Resolution timer, it monitors and schedules the PDCCH transmitted by Msg4 within the time range of the conflict resolution timer, and then receives the Msg4, and completes the conflict resolution through the Msg4.
  • the terminal device Before the end of a first repeated transmission set, the terminal device can receive conflict resolution information in the conflict resolution window that is started, including the Physical Downlink Shared Channel (PDSCH) carrying Msg4 and/or the physical downlink shared channel that schedules the PDSCH Downlink Control Channel (Physical Downlink Control CHannel, PDCCH), the terminal device terminates the transmission of the untransmitted Msg3 in the first repeated transmission set this time.
  • PDSCH Physical Downlink Shared Channel
  • PDCCH Physical Downlink Control CHannel
  • FIG. 8 An optional schematic diagram of the terminal device terminating repeated transmission, as shown in FIG. 8 , the terminal device starts the conflict resolution timer after the second repeated transmission of Msg3 in the first repeated transmission set, and before the third repeated transmission of Msg3 After receiving the PDSCH carrying the Msg4 and/or the PDCCH that schedules the PDSCH, the terminal device terminates the third and fourth Msg3 repeated transmissions performed in the first repeated transmission set.
  • the schematic diagram of repeated transmission of Msg3, as shown in Figure 9, starts or restarts the ra-Contention Resolution timer during the first Msg3 repeated transmission. If the number of times of repeated transmission of Msg3 is 4, the network device needs to wait 4 times. After the repeated transmission of Msg3 is jointly received, and then the transmission of Msg4 is performed, the length of the conflict resolution window needs to be extended, so that the conflict resolution window includes at least four times of repeated transmission of Msg3. Therefore, the network device needs to reconfigure the duration of the ra-Contention Resolution timer for the terminal device, and make a relatively large change on the basis of the existing random access method.
  • the existing conflict resolution window is used. Length, there is no need to extend the length of the conflict resolution window, and there is no need to reconfigure the duration of the ra-Contention Resolution timer. Based on the existing random access method, no configuration changes are required.
  • the above-mentioned embodiment shown in FIG. 3 is directed to the repeated transmission of Msg3.
  • the repeated transmission of Msg1 may also be performed, or the repeated transmission of both Msg1 and Msg3 may be performed; below, in the repeated transmission process of Msg1, The way of determining the RAR time window will be described.
  • Another optional processing flow of the random access method applied to a terminal device provided by the embodiment of the present application, as shown in FIG. 10 includes the following steps:
  • Step S301 the terminal device determines the start time of the RAR time window according to the random access opportunity corresponding to the repeated transmission of Msg1.
  • the coverage performance of the RedCap terminal device is improved by repeating the transmission (Repitition) Msg1.
  • the terminal equipment can follow the uniform distribution function or arbitrarily between 0 and PREAMBLE_BACKOFF A randomly selected value is used as the backofftime; the backoff time is used to determine the waiting time for the terminal device to initiate the target random access again when the random access is not completed; PREAMBLE_BACKOFF can be sent by the network device through the RAR message in the The header (header) of the sub-protocol data unit (subPDU) indicates that PREAMBLE_BACKOFF is a backoff parameter (Backoff Indicator, BI). The terminal device starts the random access resource selection process after the backoff time.
  • BI Backoff Indicator
  • the situation that the random access is not completed may be: if in the random access process, after the terminal device sends Msg1, the RAR time window times out, the terminal device does not receive the RAR message that matches the preamble in Msg1 sent by the terminal device. , and the number of times the terminal device sends the preamble does not reach the maximum number of transmissions, it is determined that the random access process is not completed. If the random access is not completed, the terminal device sends Msg1 to the network device and receives the Msg2 sent by the network device during the four-step random access process, and the terminal device starts ra-ContentionResolutionTimer and ra-ContentionResolutionTimer after sending Msg3. If the conflict resolution is not completed successfully during the timeout, it is considered that the random access process is not completed.
  • the terminal equipment repeatedly transmits Msg1 when the RAR time window ends and the terminal equipment does not receive the RAR message sent by the network equipment; in the random access method provided by the embodiment of the present application, the terminal equipment does not need to wait for the RAR time After the window ends, the repeated transmission of the Msg1 is performed; the following describes the start time of the RAR time window when the Msg1 is repeatedly transmitted in the embodiment of the present application.
  • the terminal device receives third indication information sent by the network device, where the third indication information is used to indicate the number of times the Msg1 is repeatedly transmitted. If the third indication information indicates that the number of times of repeated transmission of Msg1 is M times, the repeated transmission of M times of Msg1 may be referred to as a second repeated transmission set (set) or a second repeated transmission cluster (bundle); the repeated transmission of M times of Msg1 through A piece of information (third indication information) indicates that the number of times of repeated transmission of Msg1 can also be determined by the terminal device autonomously.
  • the third indication information may be carried in at least one item of the following information: the third higher layer signaling and the third DCI.
  • the terminal device determines the start time of the RAR time window according to the random access opportunity corresponding to each repeated transmission of Msg1.
  • the first symbol in the earliest control resource set after the terminal device repeats at least one symbol after the last symbol of the random access opportunity corresponding to Msg1 is the start time of the RAR time window.
  • the length of each RAR time window can be the same as the length of the previous RAR time window.
  • the terminal device determines the start time of the RAR time window according to the random access opportunity corresponding to the last repeated transmission of Msg1 in all the second repeated transmission sets.
  • the terminal device may perform repeated transmission of Msg1 in a combination of multiple second repeated transmissions, and each second repeated transmission set includes M repeated transmissions of Msg1.
  • the first symbol in the earliest control resource set after at least one symbol after the last symbol of the random access opportunity corresponding to the last repeated transmission Msg1 in all the second repeated transmission sets is: The starting moment of the RAR time window.
  • the terminal device performs the repeated transmission of Msg1 in two second repeated transmission sets, then at least one of the following second repeated transmission sets after the last symbol of the random access opportunity corresponding to the last repeated transmission of Msg1 is repeated.
  • the first symbol in the earliest control resource set after the symbol is the start time of the RAR time window.
  • the terminal device determines the start time of the RAR time window according to the random access opportunity corresponding to the last repeated transmission Msg1 in each second repeated transmission set.
  • the terminal device may perform repeated transmission of Msg1 in a combination of multiple second repeated transmissions, and each second repeated transmission set includes M repeated transmissions of Msg1.
  • the terminal device is based on the first symbol in the earliest control resource set after at least one symbol after the last symbol of the random access opportunity corresponding to the last repeated transmission of Msg1 in each second repeated transmission set is the start time of the RAR time window.
  • the terminal device performs the repeated transmission of Msg1 in the two second repeated transmission sets, then at least one of the previous second repeated transmission sets after the last symbol of the random access opportunity corresponding to the last repeated transmission of Msg1
  • the first symbol in the earliest control resource set after the symbol is the start time of the RAR time window;
  • the first symbol in the earliest control resource set after one symbol is also the start time of the RAR time window;
  • the length of each RAR time window may be the same as the length of the previous RAR time window.
  • the terminal device if the terminal device receives the PDSCH carrying the Msg2 and/or the PDCCH that schedules the PDSCH before the repeated transmission of the Msg1 ends, the terminal device stops the repeated transmission of the Msg1. In a specific implementation, after the terminal device determines the start time of the RAR time window, and receives the PDSCH carrying the Msg2 and/or the PDCCH that schedules the PDSCH in the RAR time window, the terminal device terminates the transmission of the untransmitted Msg1.
  • the start time of one or more RAR time windows may be determined, and the start time of each RAR time window is reset.
  • the duration of all RAR time windows is the same, that is, the duration of the existing RAR time window is used, and there is no need to extend the duration of the RAR time window or reconfigure the duration of the RAR time window. Based on the random access method, no configuration changes are required.
  • the random access method shown in FIG. 3 in the embodiment of the present application and the random access method shown in FIG. 10 in the embodiment of the present application may be applied simultaneously, or may be applied independently, which is not limited here.
  • An optional processing flow of the random access method applied to a network device provided by the embodiment of the present application, as shown in FIG. 12 includes the following steps:
  • Step S401 the network device determines the start time of the contention resolution timer according to the time when the message Msg3 is repeatedly transmitted.
  • the specific implementation process in which the network device determines the start time of the contention resolution timer according to the time of the repeated transmission of the message Msg3 may be the same as the determination of the contention resolution timer by the terminal device according to the time of the repeated transmission of the message Msg3 in the above step S201.
  • the specific implementation process of the start time is the same, except that the execution subject that determines the start time of the contention resolution timer is changed.
  • the network device if the network device fails to successfully receive the repeatedly transmitted Msg3 during the running of the contention resolution timer, the network device sends second indication information to the terminal device.
  • the description of the second indication information in this application is the same as the description of the second indication information in the foregoing step S201, and will not be repeated here.
  • Another optional processing flow of the random access method applied to a network device provided by the embodiment of the present application, as shown in FIG. 13 includes the following steps:
  • Step S1001 the network device determines the start time of the random access response time window according to the random access time corresponding to the repeated transmission message Msg1.
  • the specific implementation process for the network device to determine the start time of the random access response time window according to the random access opportunity corresponding to the repeated transmission message Msg1 is the same as the determination by the terminal device in step S201 that the start time of the random access response time window corresponds to the repeated transmission message Msg1
  • the specific implementation process of determining the starting moment of the random access response time window by the random access opportunity is the same, except that the execution subject for determining the starting moment of the random access response time window has changed.
  • the method further includes: the network device sends third indication information to the terminal device, where the third indication information is used to indicate the number of times of repeated transmission of Msg1.
  • the first indication information is carried in at least one item of the following information: the third higher layer signaling and the third DCI.
  • the description of the third indication information in this embodiment of the present application is the same as the description of the third indication information in the foregoing step S201, and details are not repeated here.
  • the random access method shown in FIG. 12 in the embodiment of the present application and the random access method shown in FIG. 13 in the embodiment of the present application may be applied simultaneously or independently, which is not limited here.
  • starting contention resolution timer involved in the embodiments of the present application may also be referred to as restarting the contention resolution timer.
  • An optional composition structure of the terminal device 500 includes:
  • the first processing unit 501 is configured to determine the start time of the contention resolution timer according to the time when the Msg3 is repeatedly transmitted.
  • the time for repeatedly transmitting Msg3 includes at least one of the following:
  • the N repeated transmissions indicated by the network device each time are a first repeated transmission set, and N is a positive integer; the time of the last repeated transmission of Msg3 includes: in each first repeated transmission set The time of the last repeated transmission of Msg3, or the time of the last repeated transmission of Msg3 in all the first repeated transmission sets.
  • the start time of the contention resolution timer is located at the first symbol after each repeated transmission of Msg3.
  • the start time of the contention resolution timer is located at the first symbol after the last repeated transmission of Msg3 in all the first repeated transmission sets; the first repeated transmission set includes the network device indicating each time N repeated transmissions, where N is a positive integer.
  • the start time of the contention resolution timer is located at the first symbol after the last repeated transmission of Msg3 in each first repeated transmission set; the first repeated transmission set includes the network device every time Indicated N repeated transmissions, where N is a positive integer.
  • the terminal device 500 further includes:
  • the first receiving unit 502 is configured to receive first indication information sent by the network device, where the first indication information is used to indicate the number of times of repeated transmission of Msg3.
  • the first indication information is carried in at least one of the following information: first higher layer signaling, uplink grant borne by RAR, and first DCI.
  • the terminal device 500 further includes:
  • the second receiving unit 503 is configured to receive second indication information if the network device fails to successfully receive the repeatedly transmitted Msg3 during the running of the contention resolution timer.
  • the second indication information is carried in a second DCI, and the second DCI is used to schedule the terminal device to repeatedly transmit the Msg3 again.
  • the terminal device 500 further includes:
  • the first sending unit 504 is configured to repeat the transmission of the Msg3 again based on the second indication information.
  • the number of times that the Msg3 is repeatedly transmitted again may be determined by using one of the following information: the number of times the network device indicates to repeat the transmission of the Msg3 last time, second-layer signaling and Second DCI.
  • the first processing unit 501 is further configured to stop repeated transmission of Msg3 if the terminal device receives Msg4 and/or the PDCCH scheduling Msg4 before the repeated transmission of Msg3 ends.
  • the first processing unit 501 is further configured to determine the starting moment of the random access response time window according to the random access opportunity corresponding to the repeated transmission of Msg1.
  • the random access opportunity corresponding to the repeated transmission of Msg1 includes at least one of the following: the random access opportunity corresponding to each repeated transmission of Msg1; the random access opportunity corresponding to the last repeated transmission of Msg1 opportunity.
  • M repeated transmissions are a second repeated transmission set, and M is a positive integer; the random access opportunity corresponding to the last repeated transmission Msg1 includes: the last repeated transmission in each second repeated transmission set The random access opportunity corresponding to one repeated transmission of Msg1, or the random access opportunity corresponding to the last repeated transmission of Msg1 in all the second repeated transmission sets.
  • the start time of the random access response time window is located in the earliest control resource set after at least one symbol after the last symbol of the random access opportunity corresponding to each repeated transmission of Msg1 the first symbol of .
  • the start time of the random access response time window is located at least one symbol after the last symbol of the random access opportunity corresponding to the last repeated transmission Msg1 in all the second repeated transmission sets The first symbol in the earliest control resource set; each of the second repeated transmission sets includes M repeated transmissions, where M is a positive integer.
  • the start time of the random access response time window is at least one symbol after the last symbol of the random access opportunity corresponding to the last repeated transmission Msg1 in each second repeated transmission set The first symbol in the later, earliest control resource set; each of the second repeated transmission sets includes M repeated transmissions, where M is a positive integer.
  • the terminal device 500 further includes:
  • the third receiving unit 505 is configured to receive third indication information sent by the network device, where the third indication information is used to indicate the number of times of repeated transmission of Msg1.
  • the third indication information is carried in at least one of the following information: third-layer high-layer signaling and third DCI.
  • the second processing unit is further configured to stop repeating if the terminal device receives the PDSCH carrying Msg2 and/or the PDCCH that schedules the PDSCH within the random access response time window Transmit Msg1.
  • the embodiment of the present application further provides a terminal device.
  • Another optional composition structure of the terminal device 600 as shown in FIG. 15 , includes:
  • the second processing unit 601 is configured to determine the starting moment of the random access response time window according to the random access opportunity corresponding to the repeated transmission of Msg1.
  • the random access opportunity corresponding to the repeated transmission of Msg1 includes at least one of the following: the random access opportunity corresponding to each repeated transmission of Msg1; the random access opportunity corresponding to the last repeated transmission of Msg1 opportunity.
  • M repeated transmissions are a second repeated transmission set, and M is a positive integer; the random access opportunity corresponding to the last repeated transmission Msg1 includes: the last repeated transmission in each second repeated transmission set The random access opportunity corresponding to one repeated transmission of Msg1, or the random access opportunity corresponding to the last repeated transmission of Msg1 in all the second repeated transmission sets.
  • the start time of the random access response time window is located in the earliest control resource set after at least one symbol after the last symbol of the random access opportunity corresponding to each repeated transmission of Msg1 the first symbol of .
  • the start time of the random access response time window is located at least one symbol after the last symbol of the random access opportunity corresponding to the last repeated transmission Msg1 in all the second repeated transmission sets The first symbol in the earliest control resource set; each of the second repeated transmission sets includes M repeated transmissions, where M is a positive integer.
  • the start time of the random access response time window is at least one symbol after the last symbol of the random access opportunity corresponding to the last repeated transmission Msg1 in each second repeated transmission set The first symbol in the later, earliest control resource set; each of the second repeated transmission sets includes M repeated transmissions, where M is a positive integer.
  • the terminal device 600 further includes: a fourth receiving unit 602, configured to receive third indication information sent by the network device, where the third indication information is used to indicate the number of times of repeated transmission of Msg1.
  • the third indication information is carried in at least one of the following information: third-layer high-layer signaling and third DCI.
  • the second processing unit 601 is further configured to stop if the terminal device receives the PDSCH carrying Msg2 and/or the PDCCH that schedules the PDSCH within the random access response time window. Repeat transmission of Msg1.
  • the second processing unit 601 is further configured to determine the start time of the contention resolution timer according to the time when the Msg3 is repeatedly transmitted.
  • the time for the repeated transmission of the message Msg3 includes at least one of the following: the time for each repeated transmission of the Msg3; the time for the last repeated transmission of the Msg3.
  • the N repeated transmissions indicated by the network device each time are a first repeated transmission set; the time of the last repeated transmission of Msg3 includes: the last repeated transmission in each first repeated transmission set The time of transmitting Msg3, or the time of the last repeated transmission of Msg3 in all the first repeated transmission sets.
  • the start time of the contention resolution timer is located at the first symbol after each repeated transmission of Msg3.
  • the start time of the contention resolution timer is located at the first symbol after the last repeated transmission of Msg3 in all the first repeated transmission sets; the first repeated transmission set includes the network device indicating each time N repeated transmissions, where N is a positive integer.
  • the start time of the contention resolution timer is located at the first symbol after the last repeated transmission of Msg3 in each first repeated transmission set; the first repeated transmission set includes the network device every time Indicated N repeated transmissions, where N is a positive integer.
  • the terminal device 600 further includes:
  • the fifth receiving unit 603 is configured to receive first indication information sent by the network device, where the first indication information is used to indicate the number of times of repeated transmission of Msg3.
  • the first indication information is carried in at least one of the following information: first higher layer signaling, uplink grant borne by RAR, and first DCI.
  • the terminal device 600 further includes:
  • the sixth receiving unit 604 is configured to receive second indication information if the network device fails to successfully receive the repeatedly transmitted Msg3 during the running of the contention resolution timer.
  • the second indication information is carried in a second DCI, and the second DCI is used to schedule the terminal device to repeatedly transmit the Msg3 again.
  • the terminal device further includes:
  • the second sending unit 605 is configured to repeatedly transmit the Msg3 based on the second indication information.
  • the number of times that the Msg3 is repeatedly transmitted again may be determined by one of the following information:
  • the network device last indicated the number of times of repeating the transmission of the Msg3, the second higher layer signaling and the second DCI.
  • the second processing unit 601 is further configured to stop the repeated transmission of Msg3 if the terminal device receives Msg4 and/or the physical downlink control channel PDCCH scheduling Msg4 before the repeated transmission of Msg3 ends .
  • An optional composition structure of the network device 800 includes:
  • the third processing unit 801 determines the start time of the contention resolution timer according to the time when Msg3 is repeatedly transmitted.
  • the time for the repeated transmission of the message Msg3 includes at least one of the following: the time for each repeated transmission of the Msg3; the time for the last repeated transmission of the Msg3.
  • the N repeated transmissions indicated by the network device each time are a first repeated transmission set, and N is a positive integer; the time of the last repeated transmission of Msg3 includes: in each first repeated transmission set The time of the last repeated transmission of Msg3, or the time of the last repeated transmission of Msg3 in all the first repeated transmission sets.
  • the start time of the contention resolution timer is located at the first symbol after each repeated transmission of Msg3.
  • the start time of the contention resolution timer is located at the first symbol after the last repeated transmission of Msg3 in all the first repeated transmission sets; the first repeated transmission set includes the network device indicating each time N repeated transmissions, where N is a positive integer.
  • the start time of the contention resolution timer is located at the first symbol after the last repeated transmission of Msg3 in each first repeated transmission set; the first repeated transmission set includes the network device every time Indicated N repeated transmissions, where N is a positive integer.
  • the network device 800 further includes:
  • the third sending unit 802 is configured to send first indication information to the terminal device, where the first indication information is used to indicate the number of times of repeated transmission of Msg3.
  • the first indication information is carried in at least one of the following information: first higher layer signaling, uplink grant borne by RAR, and first DCI.
  • the network device 800 further includes:
  • the fourth sending unit 803 is configured to send second indication information to the terminal device if the network device fails to receive the repeatedly transmitted Msg3 during the running of the contention resolution timer.
  • the second indication information is carried in a second DCI, and the second DCI is used to schedule the terminal device to repeatedly transmit the Msg3 again.
  • the number of times that the Msg3 is repeatedly transmitted again may be determined by one of the following information:
  • the network device last indicated the number of times of repeating the transmission of the Msg3, the second higher layer signaling and the second DCI.
  • the third processing unit 801 is further configured to determine the starting moment of the random access response time window according to the random access opportunity corresponding to the repeated transmission of Msg1.
  • the random access opportunity corresponding to the repeated transmission of Msg1 includes at least one of the following: the random access opportunity corresponding to each repeated transmission of Msg1; the random access opportunity corresponding to the last repeated transmission of Msg1 opportunity.
  • M repeated transmissions are a second repeated transmission set, and M is a positive integer; the random access opportunity corresponding to the last repeated transmission Msg1 includes: the last repeated transmission in each second repeated transmission set The random access opportunity corresponding to one repeated transmission of Msg1, or the random access opportunity corresponding to the last repeated transmission of Msg1 in all the second repeated transmission sets.
  • the start time of the random access response time window is located in the earliest control resource set after at least one symbol after the last symbol of the random access opportunity corresponding to each repeated transmission of Msg1 the first symbol of .
  • the start time of the random access response time window is located at least one symbol after the last symbol of the random access opportunity corresponding to the last repeated transmission Msg1 in all the second repeated transmission sets The first symbol in the earliest control resource set; each of the second repeated transmission sets includes M repeated transmissions, where M is a positive integer.
  • the start time of the random access response time window is at least one symbol after the last symbol of the random access opportunity corresponding to the last repeated transmission Msg1 in each second repeated transmission set The first symbol in the later, earliest control resource set; each of the second repeated transmission sets includes M repeated transmissions, where M is a positive integer.
  • the network device 800 further includes:
  • the fifth sending unit 804 is configured to send third indication information to the terminal device, where the third indication information is used to indicate the number of times of repeated transmission of Msg1.
  • the third indication information is carried in at least one of the following information: third-layer high-layer signaling and third DCI.
  • the embodiment of the present application further provides a network device.
  • Another optional composition structure of the network device 900 includes:
  • the fourth processing unit 901 is configured to determine the starting moment of the random access response time window according to the random access opportunity corresponding to the repeated transmission of Msg1.
  • the random access opportunity corresponding to the repeated transmission of Msg1 includes at least one of the following: the random access opportunity corresponding to each repeated transmission of Msg1; the random access opportunity corresponding to the last repeated transmission of Msg1 opportunity.
  • M repeated transmissions are a second repeated transmission set, and M is a positive integer; the random access opportunity corresponding to the last repeated transmission Msg1 includes: the last repeated transmission in each second repeated transmission set The random access opportunity corresponding to one repeated transmission of Msg1, or the random access opportunity corresponding to the last repeated transmission of Msg1 in all the second repeated transmission sets.
  • the start time of the random access response time window is located in the earliest control resource set after at least one symbol after the last symbol of the random access opportunity corresponding to each repeated transmission of Msg1 the first symbol of .
  • the start time of the random access response time window is located at least one symbol after the last symbol of the random access opportunity corresponding to the last repeated transmission Msg1 in all the second repeated transmission sets The first symbol in the earliest control resource set; each of the second repeated transmission sets includes M repeated transmissions, where M is a positive integer.
  • the start time of the random access response time window is at least one symbol after the last symbol of the random access opportunity corresponding to the last repeated transmission Msg1 in each second repeated transmission set The first symbol in the later, earliest control resource set; each of the second repeated transmission sets includes M repeated transmissions, where M is a positive integer.
  • the network device 900 further includes:
  • the sixth sending unit 902 is configured to send third indication information to the terminal device, where the third indication information is used to indicate the number of times of repeated transmission of Msg1.
  • the third indication information is carried in at least one of the following information: third-layer high-layer signaling and third DCI.
  • the fourth processing unit 901 is further configured to stop if the terminal device receives the PDSCH carrying Msg2 and/or the PDCCH that schedules the PDSCH within the random access response time window. Repeat transmission of Msg1.
  • the fourth processing unit 901 is further configured to determine the start time of the contention resolution timer according to the time when the Msg3 is repeatedly transmitted.
  • the time for the repeated transmission of the message Msg3 includes at least one of the following: the time for each repeated transmission of the Msg3; the time for the last repeated transmission of the Msg3.
  • the N repeated transmissions indicated by the network device each time are a first repeated transmission set; the time of the last repeated transmission of Msg3 includes: the last repeated transmission in each first repeated transmission set The time of transmitting Msg3, or the time of the last repeated transmission of Msg3 in all the first repeated transmission sets.
  • the start time of the contention resolution timer is located at the first symbol after each repeated transmission of Msg3.
  • the start time of the contention resolution timer is located at the first symbol after the last repeated transmission of Msg3 in all the first repeated transmission sets; the first repeated transmission set includes the network device indicating each time N repeated transmissions, where N is a positive integer.
  • the start time of the contention resolution timer is located at the first symbol after the last repeated transmission of Msg3 in each first repeated transmission set; the first repeated transmission set includes the network device every time Indicated N repeated transmissions, where N is a positive integer.
  • the network device 900 further includes:
  • the seventh sending unit 903 is configured to send first indication information to the terminal equipment, where the first indication information is used to indicate the number of times of repeated transmission of Msg3.
  • the first indication information is carried in at least one of the following information: first higher layer signaling, uplink grant borne by RAR, and first DCI.
  • the network device 900 further includes:
  • the eighth sending unit 904 is configured to send second indication information to the terminal device if the network device fails to receive the repeatedly transmitted Msg3 during the running of the contention resolution timer.
  • the second indication information is carried in a second DCI, and the second DCI is used to schedule the terminal device to repeatedly transmit the Msg3 again.
  • the number of times that the Msg3 is repeatedly transmitted again may be determined by using one of the following information: the number of times the network device indicates to repeat the transmission of the Msg3 last time, second-layer signaling and Second DCI.
  • the functions of the sending unit involved in the embodiments of the present application may be implemented by a transmitter, or a transmitter, or a transceiver; the functions of the receiving units involved in the embodiments of the present application may be implemented by a receiver or a transceiver;
  • the functions of the processing units referred to in the examples may be implemented by a processor.
  • An embodiment of the present application further provides a terminal device, including a processor and a memory for storing a computer program that can be run on the processor, wherein the processor is configured to execute the program executed by the terminal device when the processor is running the computer program. Steps of a random access method.
  • An embodiment of the present application further provides a network device, including a processor and a memory for storing a computer program that can be run on the processor, wherein the processor is configured to execute the program executed by the network device when running the computer program. Steps of a random access method.
  • An embodiment of the present application further provides a chip, including: a processor, configured to call and run a computer program from a memory, so that a device on which the chip is installed executes the random access method performed by the above-mentioned terminal device.
  • An embodiment of the present application further provides a chip, including: a processor configured to call and run a computer program from a memory, so that a device installed with the chip executes the random access method performed by the network device.
  • An embodiment of the present application further provides a storage medium storing an executable program, and when the executable program is executed by a processor, the random access method performed by the terminal device described above is implemented.
  • An embodiment of the present application further provides a storage medium storing an executable program, and when the executable program is executed by a processor, the random access method performed by the foregoing network device is implemented.
  • Embodiments of the present application further provide a computer program product, including computer program instructions, the computer program instructions enable a computer to execute the random access method executed by the above-mentioned terminal device.
  • Embodiments of the present application further provide a computer program product, including computer program instructions, the computer program instructions enable a computer to execute the random access method executed by the foregoing network device.
  • the embodiment of the present application further provides a computer program, the computer program enables the computer to execute the random access method executed by the terminal device.
  • the embodiment of the present application further provides a computer program, the computer program enables the computer to execute the random access method executed by the above-mentioned network device.
  • FIG. 18 is a schematic diagram of a hardware structure of an electronic device (terminal device or network device) according to an embodiment of the present application.
  • the electronic device 700 includes: at least one processor 701 , memory 702 and at least one network interface 704 .
  • the various components in electronic device 700 are coupled together by bus system 705 .
  • bus system 705 is used to implement the connection communication between these components.
  • the bus system 705 also includes a power bus, a control bus and a status signal bus.
  • the various buses are labeled as bus system 705 in FIG. 18 .
  • memory 702 may be either volatile memory or non-volatile memory, and may include both volatile and non-volatile memory.
  • the non-volatile memory can be ROM, Programmable Read-Only Memory (PROM, Programmable Read-Only Memory), Erasable Programmable Read-Only Memory (EPROM, Erasable Programmable Read-Only Memory), Electrically Erasable Programmable Read-Only Memory 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 -ROM, Compact Disc Read-Only Memory); magnetic surface memory can be disk memory or tape memory.
  • RAM Random Access Memory
  • SRAM Static Random Access Memory
  • SSRAM 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 Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM Enhanced Type Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Link Dynamic Random Access Memory
  • DRRAM Direct Rambus Random Access Memory
  • DRRAM Direct Rambus Random Access Memory
  • the memory 702 described in the embodiments of the present application is intended to include, but not limited to, these and any other suitable types of memory.
  • the memory 702 in this embodiment of the present application is used to store various types of data to support the operation of the electronic device 700 .
  • Examples of such data include: any computer program used to operate on electronic device 700, such as application program 7022.
  • the program for implementing the method of the embodiment of the present application may be included in the application program 7022 .
  • the methods disclosed in the above embodiments of the present application may be applied to the processor 701 or implemented by the processor 701 .
  • the processor 701 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method can be completed by an integrated logic circuit of hardware in the processor 701 or an instruction in the form of software.
  • the above-mentioned processor 701 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like.
  • the processor 701 may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of this application.
  • a general purpose processor may be a microprocessor or any conventional processor or the like.
  • the steps of the methods disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or executed 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 702, and the processor 701 reads the information in the memory 702, and completes the steps of the foregoing method in combination with its hardware.
  • the electronic device 700 may be implemented by one or more of Application Specific Integrated Circuit (ASIC, Application Specific Integrated Circuit), DSP, Programmable Logic Device (PLD, Programmable Logic Device), Complex Programmable Logic Device (CPLD) , Complex Programmable Logic Device), FPGA, general-purpose processor, controller, MCU, MPU, or other electronic component implementation for performing the aforementioned method.
  • ASIC Application Specific Integrated Circuit
  • DSP Digital Signal processor
  • PLD Programmable Logic Device
  • CPLD Complex Programmable Logic Device
  • FPGA general-purpose processor
  • controller MCU, MPU, or other electronic component implementation for performing the aforementioned method.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

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Abstract

本申请公开了一种随机接入方法,包括:终端设备根据重复传输Msg3的时间,确定竞争解决定时器的启动时刻;终端设备根据重复传输Msg1所对应的随机接入时机确定随机接入响应时间窗的起始时刻。本申请还公开了另一种随机接入方法、电子设备及存储介质。

Description

一种随机接入方法、电子设备及存储介质 技术领域
本申请涉及无线通信技术领域,尤其涉及一种随机接入方法、电子设备及存储介质。
背景技术
在随机接入过程中,为了提高终端设备的覆盖性能,可采用重复传输Msg1和/或重复传输Msg3的方式;在执行Msg1和/或Msg3重复传输时,如何提高随机接入的成功率是一直追求的目标。
发明内容
本申请实施例提供一种随机接入方法、电子设备及存储介质,能够提高随机接入的成功率。
第一方面,本申请实施例提供一种随机接入方法,包括:终端设备根据重复传输Msg3的时间,确定竞争解决定时器的启动时刻。
第二方面,本申请实施例提供一种随机接入方法,包括:终端设备根据重复传输Msg1所对应的随机接入时机确定随机接入响应时间窗的起始时刻。
第三方面,本申请实施例提供一种随机接入方法,包括:网络设备根据重复传输Msg3的时间,确定竞争解决定时器的启动时刻。
第四方面,本申请实施例提供一种随机接入方法,包括:网络设备根据重复传输消息Msg1所对应的随机接入时机,确定随机接入响应时间窗的起始时刻。
第五方面,本申请实施例提供一种终端设备,所述终端设备包括:第一处理单元,配置为根据重复传输Msg3的时间,确定竞争解决定时器的启动时刻。
第六方面,本申请实施例提供一种终端设备,所述终端设备包括:第二处理单元,配置为根据重复传输Msg1所对应的随机接入时机确定随机接入响应时间窗的起始时刻。
第七方面,本申请实施例提供一种网络设备,所述网络设备包括:第三处理单元,根据重复传输Msg3的时间,确定竞争解决定时器的启动时刻。
第八方面,本申请实施例提供一种网络设备,所述网络设备包括:第四处理单元,配置为根据重复传输Msg1所对应的随机接入时机,确定随机接入响应时间窗的起始时刻。。
第九方面,本申请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方法的步骤。
第十方面,本申请实施例提供一种网络设备,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,执行上述网络设备执行的随机接入方法的步骤。
第十一方面,本申请实施例提供一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行上述终端设备执行的随机接入方法。
第十二方面,本申请实施例提供一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行上述网络设备执行的随机接入方法。
第十三方面,本申请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方法。
第十四方面,本申请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,实现上述网络设备执行的随机接入方法。
第十五方面,本申请实施例提供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终端设备执行的随机接入方法。
第十六方面,本申请实施例提供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网络设备执行的随机接入方法。
第十七方面,本申请实施例提供一种计算机程序,所述计算机程序使得计算机执行上述终端设备执行的随机接入方法。
第十八方面,本申请实施例提供一种计算机程序,所述计算机程序使得计算机执行上述网络设备执行的随机接入方法。
本申请实施例提供的随机接入方法、电子设备及存储介质,包括:终端设备或网络设备根据重复传输Msg3的时间,确定竞争解决定时器的启动时刻;终端设备或网络设备根据重复传输Msg1所对应的随机接入时机确定随机接入响应时间窗的起始时刻;避免终端设备和网络设备对RAR window理解不一致导致的Msg2接收失败的问题,以及避免以及终端设备和网络设备对竞争解决时间窗理解不一致导致的Msg4接收失败的问题,进而提高随机接入的成功率。
附图说明
图1为本申请实施例四步随机接入过程的处理流程示意图;
图2为本申请RAR时间窗的一种可选示意图;
图3为本申请实施例通信系统的组成结构示意图;
图4为本申请实施例提供的应用于终端设备的随机接入方法的一种可选处理流程
图5为本申请实施例终端设备根据每次重复传输Msg3的时间确定竞争解决定时器的启动时刻的示意图示意图;
图6为本申请实施例终端设备根据每次重复传输Msg3的时间确定竞争解决定时器的启动时刻的示意图;
图7为本申请实施例终端设备根据每个重复传输集合中最后一次重复传输Msg3的时间,确定竞争解决定时器的启动时刻的示意图;
图8为本申请实施例终端设备终止重复传输的一种可选示意图;
图9为现有技术中重复传输Msg3的示意图示意图;
图10为本申请实施例提供的应用于终端设备的随机接入方法的另一种可选处理流程示意图;
图11为现有技术中终端设备重复传输Msg1的一种可选示意图;
图12为本申请实施例提供的应用于网络设备的随机接入方法的一种可选处理流程示意图;
图13为本申请实施例提供的应用于网络设备的随机接入方法的另一种可选处理流程示意图;
图14为本申请实施例提供的终端设备的一种可选组成结构示意图;
图15为本申请实施例提供的终端设备的另一种可选组成结构示意图;
图16为本申请实施例提供的网络设备的一种可选组成结构示意图;
图17为本申请实施例提供的网络设备的另一种可选组成结构示意图;
图18为本申请实施例提供的电子设备的硬件组成结构示意图。
具体实施方式
为了能够更加详尽地了解本申请实施例的特点和技术内容,下面结合附图对本申请实施例的实现进行详细阐述,所附附图仅供参考说明之用,并非用来限定本申请实施例。
在对本申请实施例进行说明之前,对相关内容进行简要说明。
新无线(New Radio,NR)系统主要是为了支持增强移动带宽(Enhanced Mobile Broadband,eMBB)业务而设计的,为了满足高速率、高频谱效率以及大带宽的需求。然而,在实际应用中,除了eMBB业务之外还存在多种不同的业务类型,例如传感器网络、视频监控以及可穿戴等,这些业务在速率、带宽、功耗以及成本等方面与eMBB业务有着不同的需求。这些业务对终端设备的能力要求比eMBB业务对终端设备的能力要求低,这些业务可以允许终端设备支持的带宽减小、处理时间的放松、天线数减少、最大调制阶数的放松等。这类终端设备可以简称为低能力(Reduced Capability,RedCap)终端设备。需要针对这些业务和相应的低能力终端设备对NR系统进行优化,在LTE技术中,已经有了类似的系统设计用于支持大连接数、低功耗、低成本的终端,如机器类通信(Machine Type Communication,MTC),窄带宽物联网(Narrow Band Internet of Things,NB-IoT)。在NR系统中,希望引入类似的技术用于使用NR技术更好的支持除eMBB业务之外的其他业务类型。对于这类低复杂度、低成本的终端设备,一种需要进行的优化维度是NR系统的覆盖增强,用于提高低复杂度、低成本的终端设备的下行覆盖和上行覆盖。
下面针对NR系统中的上行传输进行说明。NR系统中,网络设备通过下行控制信息(Downlink Control Information,DCI)发送上行授权(UL grant),用于调度终端设备传输物理上行共享信道(Physical Uplink Shared CHannel,PUSCH);其中,DCI可是DCI format 0_0或DCI format 0_1。
网络设备通过DCI调度上行数据传输时,DCI中会携带一个时域资源分配(Time Domain Resource Allocation,TDRA)的域,该TDRA域为4比特(bit),可以指示一个资源分配表格中的16个不同的行,每一行包含不同的资源分配组合,比如PUSCH的起始位置S,长度L,k2,以及不同的PUSCH时域资源分配的类型(type)等。其中,k2表示DCI所在的时隙(slot)和DCI所调度的PUSCH所在的slot之间的偏移slot的个数。PUSCH的映射type包括Type A和Type B;其中,Type A和Type B的区别在于两种方式对应的S和L候选值的取值范围不一样;Type A主要面向基于时隙(slot-based)的业务,S比较靠前,L比较长。而Type B主要面向URLLC业务,对时延要求较高,所以S的位置比较灵活以便传输随时到达的URLLC业务,L较短,可降低传输时延。有效的S和L可选的取值范围组合如下表1所示。
表1
Figure PCTCN2020141746-appb-000001
PUSCH的时域资源分配参数如下表2所示,为正常循环前缀的默认PUSCH时域资源配置A,具体的,可通过DCI指示表2中的一种时域资源信息。
表2
Figure PCTCN2020141746-appb-000002
NR系统的四步随机接入过程,如图1所示,包括:
第一步,终端设备向网络设备发送PRACH,该PRACH包含随机接入前导码(preamble);即终端设备向网络设备发送消息1(message 1,Msg1),Msg1中携带preamble。
第二步,网络设备检测到有终端设备发送preamble之后,向终端设备发送随机接入响应(Random Access Response,RAR),即网络设备向终端设备发送Msg2,以告知终端设备在发送Msg3 时可以使用的PUSCH资源,为终端设备分配临时的无线网络临时标识符(Radio Network Tempory Identity,RNTI),为终端设备提供time advance command等。
第三步,终端设备在接收到RAR消息之后,在RAR消息所指定的PUSCH资源发送Msg3消息,Msg3消息中携带一个终端设备特定的临时标识信息。
第四步,网络设备向终端设备发送Msg4消息,其中包括竞争解决消息,并为终端设备分配上行传输资源。终端设备接收到网络设备发送的Msg4时,会检测终端设备在Msg3发送的终端设备特定临时标识是否包含在网络设备发送的竞争解决消息中;若包含,则表明终端设备随机接入过程成功;否则,认为随机过程失败,终端设备需要再次从第一步开始发起随机接入过程。
为提高终端设备的上行覆盖,一种方案是通过混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)重复传输(retransmission)Msg3的方式提高终端设备的上行覆盖,具体的,网络设备通过向终端设备发送携带上行调度信息的RAR来调度终端设备初传Msg3;若网络设备没有成功接收到Msg3,则网络设备通过DCI调度Msg3进行HARQ重传;即每次重复传输Msg3都需要通过一个DCI调度实现的,网络设备向终端设备发送一个DCI,调度终端设备重复传输一次Msg3。本申请人在实施随机接入过程中发现,每次重复传输Msg3都通过一个DCI调度实现时极大地消耗了系统资源;因此,本申请人提出通过重复传输(repetition)Msg3和/或Msg1的方式提高终端设备的上行覆盖;具体的,网络设备发送一次重传指示信息,用于指示X次重复传输(repetition)Msg3,X次重复传输Msg3可以称为一个重复传输集合。本申请明确了一个重复传输集合内存在多次重复传输时,如何确定随机接入响应(Random Access Response,RAR)时间窗(window)和竞争解决时间窗(重启竞争解决定时器的时刻),以及存在多个重复传输集合时,如何确定RAR window和竞争解决时间窗(重启竞争解决定时器的时刻);能够避免终端设备和网络设备对RAR window理解不一致导致的Msg2接收失败的问题,以及避免以及终端设备和网络设备对竞争解决时间窗理解不一致导致的Msg4接收失败的问题。
下面对RAR时间窗进行说明。网络设备通过系统消息指示终端设备接收RAR所需要的PDCCH的搜索空间的配置信息(ra-SearchSpace),终端设备通过在RAR时间窗内的该搜索空间中检测与Msg1对应的PDCCH,从而接收Msg1对应的RAR信息。具体的,在RAR时间窗内,网络设备通过承载DCI format 1-0的PDCCH通过RA-RNTI加扰发送给终端设备。其中,通过ra-SearchSpace配置的搜索空间为Type1-PDCCH common search space。RAR时间窗通过高层参数ra-ResponseWindow进行配置。RAR时间窗开始于随机接入时机的最后一个符号之后的至少一个符号之后的最近的资源控制集(Control Resource Set,CORESET)的第一个符号,CORESET是由ra-SearchSpace配置信息配置的CORESET。
RAR时间窗的配置信息如下所示:
ra-ResponseWindow ENUMERATED{sl1,sl2,sl4,sl8,sl10,sl20,sl40,sl80},
其中,sl80表示RAR时间窗的长度为80个时隙(slot)。RAR时间窗最长为10ms。
RAR时间窗的一种可选示意图,如图2所示,RAR窗口的大小为10个slot,子载波间隔为15kHz。RAR窗口开始于PRACH occasion的最后一个符号之后的至少一个符号之后的最早的CORESET中的第一个符号,该CORESET是Type1-PDCCH common search space配置的用于接收PDCCH的时频资源。
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(global system of mobile communication,GSM)系统、码分多址(code division multiple access,CDMA)系统、宽带码分多址(wideband code division multiple access,WCDMA)系统、通用分组无线业务(general packet radio service,GPRS)、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)系统、先进的长期演进(advanced long term evolution,LTE-A)系统、新无线(new radio,NR)系统、NR系统的演进系统、非授权频段上的LTE(LTE-based access to unlicensed spectrum,LTE-U)系统、非授权频段上的NR(NR-based access to unlicensed spectrum,NR-U)系统、通用移动通信系统(universal mobile telecommunication system,UMTS)、全球互联微波接入(worldwide interoperability for microwave access,WiMAX)通信系统、无线局域网(wireless local area networks,WLAN)、无线保真(wireless fidelity,WiFi)、下一代通信系统或其他通信系统等。
本申请实施例描述的系统架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案,并不构成对于本申请实施例提供的技术方案的限定,本领域普通技术人员可知,随着网络架构的演变和新业务场景的出现,本申请实施例提供的技术方案对于类似的技术问题,同样适用。
本申请实施例中涉及的网络设备,可以是普通的基站(如NodeB或eNB或者gNB)、新无线控制器(new radio controller,NR controller)、集中式网元(centralized unit)、新无线基站、射频拉远模块、微基站、中继(relay)、分布式网元(distributed unit)、接收点(transmission reception point,TRP)、传输点(transmission point,TP)或者任何其它设备。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。为方便描述,本申请所有实施例中,上述为终端设备提供无线通信功能的装置统称为网络设备。
在本申请实施例中,终端设备可以是任意的终端,比如,终端设备可以是机器类通信的用户设备。也就是说,该终端设备也可称之为用户设备UE、移动台(mobile station,MS)、移动终端(mobile terminal)、终端(terminal)等,该终端设备可以经无线接入网(radio access network,RAN)与一个或多个核心网进行通信,例如,终端设备可以是移动电话(或称为“蜂窝”电话)、具有移动终端的计算机等,例如,终端设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。本申请实施例中不做具体限定。
可选的,网络设备和终端设备可以部署在陆地上,包括室内或室外、手持或车载;也可以部署在水面上;还可以部署在空中的飞机、气球和人造卫星上。本申请的实施例对网络设备和终端设备的应用场景不做限定。
可选的,网络设备和终端设备之间以及终端设备和终端设备之间可以通过授权频谱(licensed spectrum)进行通信,也可以通过非授权频谱(unlicensed spectrum)进行通信,也可以同时通过授权频谱和非授权频谱进行通信。网络设备和终端设备之间以及终端设备和终端设备之间可以通过7吉兆赫(gigahertz,GHz)以下的频谱进行通信,也可以通过7GHz以上的频谱进行通信,还可以同时使用7GHz以下的频谱和7GHz以上的频谱进行通信。本申请的实施例对网络设备和终端设备之间所使用的频谱资源不做限定。
通常来说,传统的通信系统支持的连接数有限,也易于实现,然而,随着通信技术的发展,移动通信系统将不仅支持传统的通信,还将支持例如,设备到设备(device to device,D2D)通信,机器到机器(machine to machine,M2M)通信,机器类型通信(machine type communication,MTC),以及车辆间(vehicle to vehicle,V2V)通信等,本申请实施例也可以应用于这些通信系统。
示例性的,本申请实施例应用的通信系统100,如图3所示。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(Base Transceiver Station,BTS),也可以是WCDMA系统中的基站(NodeB,NB),还可以是LTE系统中的演进型基站(Evolutional Node B,eNB或eNodeB),或者是云无线接入网络(Cloud Radio Access Network,CRAN)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(Public Land Mobile Network,PLMN)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(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,终端设备120之间可以进行终端直连(Device to Device,D2D)通信。
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3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3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。
本申请实施例提供的应用于终端设备的随机接入方法的一种可选处理流程,如图4所示,包括以下步骤:
步骤S201,终端设备根据重复传输Msg3的时间,确定竞争解决定时器的启动时刻。
在一些实施例中,通过重复传输(Repitition)Msg3提高RedCap终端设备的覆盖性能。
在一些实施例中,终端设备接收网络设备发送的第一指示信息,所述第一指示信息用于指示重复传输Msg3的次数。若第一指示信息指示重复传输Msg3的次数为N次,则N次Msg3的重复传输可以称为第一重复传输集合(set)或第一重复传输簇(bundle);N次Msg3的重复传输通过一条信息(第一指示信息)指示,相较于现有技术中每次Msg3的重复传输通过一个DCI调度更能够节省网络资源。
在具体实施时,所述第一指示信息可以携带于下述信息中的至少一项:第一高层信令、RAR承载的上行授权和第一DCI。
本申请实施例中,终端设备根据第一指示信息所指示的重复传输Msg3的次数、以及RAR所指示的时域资源,能够确定重复传输Msg3的时刻。举例来说,若第一指示信息指示重复传输Msg3的次数是3次,则终端设备在连续的三个上行时隙重复传输Msg3。
在一些可选实施例中,终端设备根据每次重复传输Msg3的时间,确定竞争解决定时器(ra-Contention Resolution)定时器的启动时刻。在具体实施时,终端设备在每次重复传输Msg3之后的第一个符号启动ra-Contention Resolution定时器;每次重新启动的ra-Contention Resolution定时器的时长度均与第一次启动的ra-Contention Resolution定时器的时长可以相同。
举例来说,终端设备根据每次重复传输Msg3的时间,确定竞争解决定时器的启动时刻的示意图,如图5所示,终端设备每次重复传输Msg3时,即使上一次重复传输Msg3所启动的ra-Contention Resolution定时器未结束,仍在本次重复传输Msg3之后的第一个符号重启ra-Contention Resolution定时器;并且,上一次重复传输Msg3所启动的ra-Contention Resolution定时器也不再继续计时。
在另一些可选实施例中,终端设备根据全部第一重复传输集合中最后一次重复传输Msg3的时间,确定竞争解决定时器的启动时刻。在具体实施时,网络设备可以向终端设备发送第一指示信息,第一指示信息用于指示终端设备进行的N次Msg3的重复传输称为一个第一重复传输集合。若在第一重复传输集合传输完成之后,网络设备仍旧没有成功接收Msg3、且ra-Contention Resolution定时器未超时,则网络设备可以向终端设备发送第二指示信息,第二指示信息可以携带于第二DCI中,所述第二DCI用于调度所述终端设备再次重复传输所述Msg3。终端设备再次重复传输所述Msg3的次数可通过下述中的一种信息确定:所述网络设备上一次指示重复传输所述Msg3的次数、第二高层信令和第二DCI。即终端设备再次重复传输所述Msg3的次数可以与上一次重复传输所述Msg3的次数相同;或者,终端设备再次重复传输所述Msg3的次数与上一次重复传输所述Msg3的次数之差为预设值;或者,终端设备接收网络设备发送的第二高层信令或第二DCI,根据第二高层信令或第二DCI确定终端设备再次重复传输所述Msg3的次数。因此,终端设备根据网络设备的指示可以传输一个第一重复传输集合,也可以传输两个或两个以上的第一重复传输集合。其中,每个第一重复传输集合中可以包括多次Msg3的重复传输。终端设备在最后一次重复传输Msg3之后的第一个符号启动ra-Contention Resolution定时器。
举例来说,以终端设备指示一个第一重复传输集合为例,终端设备根据每次重复传输Msg3的时间,确定竞争解决定时器的启动时刻的示意图,如图6所示,网络设备通过第一指示信息指示重复传输Msg3的次数为4次,则终端设备仅在第四次重复传输Msg3(即最后一次)之后的第一个符号重启ra-Contention Resolution定时器。
还有一些可选实施例中,终端设备根据每个第一重复传输集合中最后一次重复传输Msg3的时 间,确定竞争解决定时器的启动时刻。在具体实施时,网络设备可以向终端设备发送第一指示信息,第一指示信息用于指示终端设备进行的N次Msg3的重复传输称为一个第一重复传输集合。若在第一重复传输集合传输完成之后,网络设备仍旧没有成功接收Msg3、且ra-Contention Resolution定时器未超时,则网络设备可以向终端设备发送第二指示信息,第二指示信息可以携带于第二DCI中,所述第二DCI用于调度所述终端设备再次重复传输所述Msg3。终端设备再次重复传输所述Msg3的次数可通过下述中的一种信息确定:所述网络设备上一次指示重复传输所述Msg3的次数、第二高层信令和第二DCI。即终端设备再次重复传输所述Msg3的次数可以与上一次重复传输所述Msg3的次数相同;或者,终端设备再次重复传输所述Msg3的次数与上一次重复传输所述Msg3的次数之差为预设值;或者,终端设备接收网络设备发送的第二高层信令或第二DCI,根据第二高层信令或第二DCI确定终端设备再次重复传输所述Msg3的次数。因此,终端设备根据网络设备的指示可以传输一个第一重复传输集合,也可以传输两个或两个以上的第一重复传输集合。其中,每个第一重复传输集合中可以包括多次Msg3的重复传输。终端设备在每个第一重复传输集合中最后一次重复传输Msg3之后的第一个符号启动ra-Contention Resolution定时器;终端设备每次重新启动的ra-Contention Resolution定时器的时长与上一次重新启动的ra-Contention Resolution定时器的时长可以相同。
举例来说,以终端设备指示两个第一重复传输集合为例,终端设备根据每个重复传输集合中最后一次重复传输Msg3的时间,确定竞争解决定时器的启动时刻的示意图,如图7所示,网络设备通过第一指示信息指示第一重复传输集合,第一重复传输集合种重复传输Msg3的次数为4次,则终端设备在第一重复传输集合中的第四次重复传输Msg3之后的第一个符号重启ra-Contention Resolution定时器。由于在第一重复传输集合传输完成之后,网络设备仍旧没有成功接收Msg3、且ra-Contention Resolution定时器未超时,则网络设备向终端设备发送用于调度终端设备再次重复传输所述Msg3的第二DCI,终端设备基于所述第二指示信息,再次重复传输所述Msg3;终端设备确定再次重复传输Msg3的次数与上一次重复传输Msg3的次数相同,则终端在再次重复传输Msg3中的第四次重复传输Msg3之后的第一个符号重启ra-Contention Resolution定时器。
在一些实施例中,若所述终端设备在重复传输Msg3结束之前接收到Msg4和/或调度Msg4的物理下行控制信道PDCCH,则所述终端设备停止重复传输Msg3。在具体实施时,终端设备启动或重启ra-Contention Resolution定时器之后,在冲突解决定时器的时间范围内监听调度Msg4传输的PDCCH,进而接收Msg4,通过Msg4完成冲突解决。当终端设备在一次第一重复传输集合结束之前,在启动的冲突解决窗口能接收到冲突解决信息,包括承载Msg4的物理下行共享信道(Physical Downlink Shared Channel,PDSCH)和/或调度该PDSCH的物理下行控制信道(Physical Downlink Control CHannel,PDCCH),则终端设备终止本次第一重复传输集合中未传输的Msg3的传输。
终端设备终止重复传输的一种可选示意图,如图8所示,终端设备在第一重复传输集合中第二次Msg3的重复传输之后启动冲突解决定时器,并在第三次Msg3重复传输之前收到了承载Msg4的PDSCH和/或调度该PDSCH的PDCCH,则终端设备终止第一重复传输集合中为执行的第三次Msg3重复传输和第四次Msg3传输。
现有技术中,重复传输Msg3的示意图,如图9所示,在第一次Msg3重复传输时启动或重启ra-Contention Resolution定时器,若Msg3重复传输的次数为4,网络设备需要等待4次Msg3的重复传输进行联合接收之后,再进行Msg4的发送,则需要延长冲突解决窗口的长度,使得冲突解决窗口至少包括4次Msg3的重复传输的时间。因此,需要网络设备重新为终端设备配置ra-Contention Resolution定时器的时长,在已有的随机接入方法的基础上,进行比较大的改动。而本申请实施例中,由于每次启动或重启的ra-Contention Resolution定时器的时长均与上一次启动或重启的ra-Contention Resolution定时器的时长相同,即沿用了现有的冲突解决窗口的长度,无需对冲突解决窗口的长度进行延长,无需重新配置ra-Contention Resolution定时器的时长,在已有的随机接入方法的基础上,无需进行配置的改动。
上述图3所示的实施例是针对Msg3的重复传输,在随机接入过程中,也可以对Msg1进行重复传输,或者对Msg1和Msg3均进行重复传输;下面对Msg1的重复传输过程中,RAR时间窗的确定方式进行说明。
本申请实施例提供的应用于终端设备的随机接入方法的另一种可选处理流程,如图10所示,包括以下步骤:
步骤S301,终端设备根据重复传输Msg1所对应的随机接入时机确定RAR时间窗的起始时刻。
在一些实施例中,通过重复传输(Repitition)Msg1提高RedCap终端设备的覆盖性能。现有技 术中终端设备重复传输Msg1的一种可选示意图,如图11所示,网络设备指示一个PREAMBLE_BACKOFF,若随机接入没有完成,终端设备可遵循均匀分布函数或随意在0和PREAMBLE_BACKOFF之间随机选择的一个值作为backofftime;backoff time是在随机接入未完成的情况下,用于确定终端设备再次发起目标随机接入的等待接入时间;PREAMBLE_BACKOFF可以通过网络设备发送的RAR消息中的的子协议数据单元(subPDU)的包头(header)指示,PREAMBLE_BACKOFF为回退参数(Backoff Indicator,BI)。终端设备在该backoff time之后开始进行随机接入资源选择过程。
其中,随机接入未完成的情况可以是:若随机接入过程中,终端设备发送Msg1之后,在RAR时间窗超时,终端设备没有收到与终端设备所发送的Msg1中的preamble匹配的RAR消息、并且终端设备发送preamble的次数没有达到最大传输次数,则判断随机接入过程没有完成。随机接入未完成的情况还可以是:在四步随机接入过程中,终端设备向网络设备发送Msg1,并接收网络设备发送的Msg2,终端设备在发送Msg3之后启动ra-ContentionResolutionTimer,ra-ContentionResolutionTimer超时时冲突解决没有成功完成,则认为随机接入过程未完成。
图11所示的终端设备重复传输Msg1发生在RAR时间窗结束、且终端设备未接收到网络设备发送的RAR消息的场景;本申请实施例提供的随机接入方法中,终端设备无需等待RAR时间窗结束之后再进行Msg1的重复传输;下面对本申请实施例中重复传输Msg1时的RAR时间窗的起始时刻进行说明。
在一些实施例中,终端设备接收网络设备发送的第三指示信息,所述第三指示信息用于指示重复传输Msg1的次数。若第三指示信息指示重复传输Msg1的次数为M次,则M次Msg1的重复传输可以称为第二重复传输集合(set)或第二重复传输簇(bundle);M次Msg1的重复传输通过一条信息(第三指示信息)指示,也可以由终端设备自主确定重复传输Msg1的次数。
在具体实施时,所述第三指示信息可以携带于下述信息中的至少一项:第三高层信令和第三DCI。
在一些可选实施例中,终端设备根据每次重复传输Msg1所对应的随机接入时机,确定RAR时间窗的起始时刻。在具体实施时,终端设备在每次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号为RAR时间窗的起始时刻;每个RAR时间窗的长度均可以与上一个RAR时间窗的长度相同。
在另一些可选实施例中,终端设备根据全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机,确定RAR时间窗的起始时刻。在具体实施时,在具体实施时,终端设备可以执行多个第二重复传输结合中的Msg1的重复传输,每个第二重复传输集合包括M次Msg1的重复传输。在该场景下,终端设备根据全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号为RAR时间窗的起始时刻。举例来说,终端设备执行两个第二重复传输集合中的Msg1的重复传输,则后一个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号为RAR时间窗的起始时刻。
还有一些实施例中,终端设备根据每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机,确定RAR时间窗的起始时刻。在具体实施时,在具体实施时,终端设备可以执行多个第二重复传输结合中的Msg1的重复传输,每个第二重复传输集合包括M次Msg1的重复传输。在该场景下,终端设备根据每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号为RAR时间窗的起始时刻。举例来说,终端设备执行两个第二重复传输集合中的Msg1的重复传输,则前一个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号为RAR时间窗的起始时刻;后一个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号也为RAR时间窗的起始时刻;每个RAR时间窗的长度均可以与上一个RAR时间窗的长度相同。
在一些实施例中,若所述终端设备在重复传输Msg1结束之前接收到承载Msg2的PDSCH和/或调度PDSCH的PDCCH,则所述终端设备停止重复传输Msg1。在具体实施时,终端设备确定RAR时间窗的起始时刻之后,在RAR时间窗接收到承载Msg2的PDSCH和/或调度PDSCH的PDCCH,则终端设备终止未传输的Msg1的传输。
本申请实施例中,每一次Msg1重传所在的随机接入时机确定时,可能会确定一个或多个RAR 时间窗的起始时刻,则每个RAR时间窗的起始时刻均重置。
本申请实施例中,全部RAR时间窗的时长均相同,即沿用了现有的RAR时间窗的时长,无需对RAR时间窗的时长进行延长,无需重新配置RAR时间窗的时长,在已有的随机接入方法的基础上,无需进行配置的改动。
本申请实施例图3所示的随机接入方法与本申请实施例图10所示的随机接入方法可以同时应用,也可以分别独立应用,这里不做限定。
本申请实施例提供的应用于网络设备的随机接入方法的一种可选处理流程,如图12所示,包括以下步骤:
步骤S401,网络设备根据重复传输消息Msg3的时间,确定竞争解决定时器的启动时刻。
在一些实施例中,网络设备根据重复传输消息Msg3的时间,确定竞争解决定时器的启动时刻的具体实现过程,可以与上述步骤S201中终端设备根据重复传输消息Msg3的时间确定竞争解决定时器的启动时刻的具体实现过程相同,仅仅是确定竞争解决定时器的启动时刻的执行主体发生了变化。
在一些实施例中,若在所述竞争解决定时器运行期间,所述网络设备未成功接收重复传输的Msg3,则所述网络设备向终端设备发送第二指示信息。本申请中针对第二指示信息的说明与上述步骤S201中针对第二指示信息的说明相同,这里不再赘述。
本申请实施例提供的应用于网络设备的随机接入方法的另一种可选处理流程,如图13所示,包括以下步骤:
步骤S1001,网络设备根据重复传输消息Msg1所对应的随机接入时机,确定随机接入响应时间窗的起始时刻。
在一些实施例中,网络设备根据重复传输消息Msg1所对应的随机接入时机确定随机接入响应时间窗的起始时刻的具体实现过程,与步骤S201中终端设备确定根据重复传输消息Msg1所对应的随机接入时机确定随机接入响应时间窗的起始时刻的具体实现过程相同,仅仅是确定随机接入响应时间窗的起始时刻的执行主体发生了变化。
在一些实施例中,所述方法还包括:所述网络设备向终端设备发送第三指示信息,所述第三指示信息用于指示重复传输Msg1的次数。其中,所述第一指示信息携带于下述信息中的至少一项:第三高层信令和第三DCI。本申请实施例针对第三指示信息的说明,与上述步骤S201中针对第三指示信息的说明相同,这里不再赘述。
本申请实施例图12所示的随机接入方法与本申请实施例图13所示的随机接入方法可以同时应用,也可以分别独立应用,这里不做限定。
需要说明的是,本申请实施例中所涉及的启动竞争解决定时器,也可以称为重启竞争解决定时器。
本申请实施例提供的应用于网络设备或应用于终端设备的随机接入方法中,明确了一个重复传输集合内存在多次重复传输时,如何确定随机接入响应(Random Access Response,RAR)时间窗(window)和竞争解决时间窗(重启竞争解决定时器的时刻),以及存在多个重复传输集合是,如何确定RAR window和竞争解决时间窗(重启竞争解决定时器的时刻)。避免终端设备和网络设备对RAR window理解不一致导致的Msg2接收失败的问题,以及避免以及终端设备和网络设备对竞争解决时间窗理解不一致导致的Msg4接收失败的问题,进而提高随机接入的成功率。
为实现本申请实施例提供的随机接入方法,本申请实施例还提供一种终端设备,所述终端设备500的一种可选组成结构,如图14所示,包括:
第一处理单元501,配置为根据重复传输Msg3的时间,确定竞争解决定时器的启动时刻。
在一些可选实施例中,所述重复传输Msg3的时间,包括以下至少之一:
每次重复传输Msg3的时间;最后一次重复传输Msg3的时间。
在一些可选实施例中,网络设备每次指示的N次重复传输为一个第一重复传输集合,N为正整数;所述最后一次重复传输Msg3的时间包括:每个第一重复传输集合中最后一次重复传输Msg3的时间,或者,全部第一重复传输集合中最后一次重复传输Msg3的时间。
在一些可选实施例中,所述竞争解决定时器的启动时刻位于每次重复传输Msg3之后的第一个符号。
在一些可选实施例中,所述竞争解决定时器的启动时刻位于全部第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
在一些可选实施例中,所述竞争解决定时器的启动时刻位于每个第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
在一些可选实施例中,所述终端设备500还包括:
第一接收单元502,配置为接收网络设备发送的第一指示信息,所述第一指示信息用于指示重复传输Msg3的次数。
在一些可选实施例中,所述第一指示信息携带于下述信息中的至少一项:第一高层信令、RAR承载的上行授权和第一DCI。
在一些可选实施例中,所述终端设备500还包括:
第二接收单元503,配置为若在所述竞争解决定时器运行期间,所述网络设备未成功接收重复传输的Msg3,则接收第二指示信息。
在一些可选实施例中,所述第二指示信息携带于第二DCI中,所述第二DCI用于调度所述终端设备再次重复传输所述Msg3。
在一些可选实施例中,所述终端设备500还包括:
第一发送单元504,配置为基于所述第二指示信息,再次重复传输所述Msg3。
在一些可选实施例中,所述再次重复传输所述Msg3的次数可通过下述中的一种信息确定:所述网络设备上一次指示重复传输所述Msg3的次数、第二高层信令和第二DCI。
在一些可选实施例中,所述第一处理单元501,还配置为若所述终端设备在重复传输Msg3结束之前接收到Msg4和/或调度Msg4的PDCCH,则停止重复传输Msg3。
在一些可选实施例中,所述第一处理单元501,还配置为根据重复传输Msg1所对应的随机接入时机确定随机接入响应时间窗的起始时刻。
在一些可选实施例中,所述重复传输Msg1所对应的随机接入时机包括以下至少之一:每次重复传输Msg1所对应的随机接入时机;最后一次重复传输Msg1所对应的随机接入时机。
在一些可选实施例中,M次重复传输为一个第二重复传输集合,M为正整数;所述最后一次重复传输Msg1所对应的随机接入时机包括:每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机,或者,全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机。
在一些可选实施例中,所述随机接入响应时间窗的起始时刻位于每次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号。
在一些可选实施例中,所述随机接入响应时间窗的起始时刻位于全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;每个所述第二重复传输集合包括M次重复传输,M为正整数。
在一些可选实施例中,所述随机接入响应时间窗的起始时刻位于每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;每个所述第二重复传输集合包括M次重复传输,M为正整数。
在一些可选实施例中,所述终端设备500还包括:
第三接收单元505,配置为接收网络设备发送的第三指示信息,所述第三指示信息用于指示重复传输Msg1的次数。
在一些可选实施例中,所述第三指示信息携带于下述信息中的至少一项:第三高层信令和第三DCI。
在一些可选实施例中,所述第二处理单元,还配置为若所述终端设备在所述随机接入响应时间窗内接收到承载Msg2的PDSCH和/或调度PDSCH的PDCCH,则停止重复传输Msg1。
为实现本申请实施例提供的随机接入方法,本申请实施例还提供一种终端设备,所述终端设备600的另一种可选组成结构,如图15所示,包括:
第二处理单元601,配置为根据重复传输Msg1所对应的随机接入时机确定随机接入响应时间窗的起始时刻。
在一些可选实施例中,所述重复传输Msg1所对应的随机接入时机包括以下至少之一:每次重复传输Msg1所对应的随机接入时机;最后一次重复传输Msg1所对应的随机接入时机。
在一些可选实施例中,M次重复传输为一个第二重复传输集合,M为正整数;所述最后一次重复传输Msg1所对应的随机接入时机包括:每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机,或者,全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机。
在一些可选实施例中,所述随机接入响应时间窗的起始时刻位于每次重复传输Msg1所对应的 随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号。
在一些可选实施例中,所述随机接入响应时间窗的起始时刻位于全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;每个所述第二重复传输集合包括M次重复传输,M为正整数。
在一些可选实施例中,所述随机接入响应时间窗的起始时刻位于每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;每个所述第二重复传输集合包括M次重复传输,M为正整数。
在一些可选实施例中,所述终端设备600还包括:第四接收单元602,配置为接收网络设备发送的第三指示信息,所述第三指示信息用于指示重复传输Msg1的次数。
在一些可选实施例中,所述第三指示信息携带于下述信息中的至少一项:第三高层信令和第三DCI。
在一些可选实施例中,所述第二处理单元601,还配置为若所述终端设备在所述随机接入响应时间窗内接收到承载Msg2的PDSCH和/或调度PDSCH的PDCCH,则停止重复传输Msg1。
在一些可选实施例中,所述第二处理单元601,还配置为根据重复传输Msg3的时间,确定竞争解决定时器的启动时刻。
在一些可选实施例中,所述重复传输消息Msg3的时间,包括以下至少之一:每次重复传输Msg3的时间;最后一次重复传输Msg3的时间。
在一些可选实施例中,所述网络设备每次指示的N次重复传输为一个第一重复传输集合;所述最后一次重复传输Msg3的时间包括:每个第一重复传输集合中最后一次重复传输Msg3的时间,或者,全部第一重复传输集合中最后一次重复传输Msg3的时间。
在一些可选实施例中,所述竞争解决定时器的启动时刻位于每次重复传输Msg3之后的第一个符号。
在一些可选实施例中,所述竞争解决定时器的启动时刻位于全部第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
在一些可选实施例中,所述竞争解决定时器的启动时刻位于每个第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
在一些可选实施例中,所述终端设备600还包括:
第五接收单元603,配置为接收网络设备发送的第一指示信息,所述第一指示信息用于指示重复传输Msg3的次数。
在一些可选实施例中,所述第一指示信息携带于下述信息中的至少一项:第一高层信令、RAR承载的上行授权和第一DCI。
在一些可选实施例中,所述终端设备600还包括:
第六接收单元604,配置为若在所述竞争解决定时器运行期间,所述网络设备未成功接收重复传输的Msg3,则接收第二指示信息。
在一些可选实施例中,所述第二指示信息携带于第二DCI中,所述第二DCI用于调度所述终端设备再次重复传输所述Msg3。
在一些可选实施例中,所述终端设备还包括:
第二发送单元605,配置为基于所述第二指示信息再次重复传输所述Msg3。
在一些可选实施例中,所述再次重复传输所述Msg3的次数可通过下述中的一种信息确定:
所述网络设备上一次指示重复传输所述Msg3的次数、第二高层信令和第二DCI。
在一些可选实施例中,所述第二处理单元601,还配置为若所述终端设备在重复传输Msg3结束之前接收到Msg4和/或调度Msg4的物理下行控制信道PDCCH,则停止重复传输Msg3。
为实现本申请实施例提供的随机接入方法,本申请实施例还提供一种网络设备,所述网络设备800的一种可选组成结构,如图16所示,包括:
第三处理单元801,根据重复传输Msg3的时间,确定竞争解决定时器的启动时刻。
在一些可选实施例中,所述重复传输消息Msg3的时间,包括以下至少之一:每次重复传输Msg3的时间;最后一次重复传输Msg3的时间。
在一些可选实施例中,网络设备每次指示的N次重复传输为一个第一重复传输集合,N为正整数;所述最后一次重复传输Msg3的时间包括:每个第一重复传输集合中最后一次重复传输Msg3的 时间,或者,全部第一重复传输集合中最后一次重复传输Msg3的时间。
在一些可选实施例中,所述竞争解决定时器的启动时刻位于每次重复传输Msg3之后的第一个符号。
在一些可选实施例中,所述竞争解决定时器的启动时刻位于全部第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
在一些可选实施例中,所述竞争解决定时器的启动时刻位于每个第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
在一些可选实施例中,所述网络设备800还包括:
第三发送单元802,配置为向终端设备发送第一指示信息,所述第一指示信息用于指示重复传输Msg3的次数。
在一些可选实施例中,所述第一指示信息携带于下述信息中的至少一项:第一高层信令、RAR承载的上行授权和第一DCI。
在一些可选实施例中,所述网络设备800还包括:
第四发送单元803,配置为若在所述竞争解决定时器运行期间,所述网络设备未成功接收重复传输的Msg3,则向终端设备发送第二指示信息。
在一些可选实施例中,所述第二指示信息携带于第二DCI中,所述第二DCI用于调度所述终端设备再次重复传输所述Msg3。
在一些可选实施例中,所述再次重复传输所述Msg3的次数可通过下述中的一种信息确定:
所述网络设备上一次指示重复传输所述Msg3的次数、第二高层信令和第二DCI。
在一些可选实施例中,所述第三处理单元801,还配置为根据重复传输Msg1所对应的随机接入时机确定随机接入响应时间窗的起始时刻。
在一些可选实施例中,所述重复传输Msg1所对应的随机接入时机包括以下至少之一:每次重复传输Msg1所对应的随机接入时机;最后一次重复传输Msg1所对应的随机接入时机。
在一些可选实施例中,M次重复传输为一个第二重复传输集合,M为正整数;所述最后一次重复传输Msg1所对应的随机接入时机包括:每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机,或者,全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机。
在一些可选实施例中,所述随机接入响应时间窗的起始时刻位于每次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号。
在一些可选实施例中,所述随机接入响应时间窗的起始时刻位于全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;每个所述第二重复传输集合包括M次重复传输,M为正整数。
在一些可选实施例中,所述随机接入响应时间窗的起始时刻位于每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;每个所述第二重复传输集合包括M次重复传输,M为正整数。
在一些可选实施例中,所述网络设备800还包括:
第五发送单元804,配置为向终端设备发送第三指示信息,所述第三指示信息用于指示重复传输Msg1的次数。
在一些可选实施例中,所述第三指示信息携带于下述信息中的至少一项:第三高层信令和第三DCI。
为实现本申请实施例提供的随机接入方法,本申请实施例还提供一种网络设备,所述网络设备900的另一种可选组成结构,如图17所示,包括:
第四处理单元901,配置为根据重复传输Msg1所对应的随机接入时机,确定随机接入响应时间窗的起始时刻。
在一些可选实施例中,所述重复传输Msg1所对应的随机接入时机包括以下至少之一:每次重复传输Msg1所对应的随机接入时机;最后一次重复传输Msg1所对应的随机接入时机。
在一些可选实施例中,M次重复传输为一个第二重复传输集合,M为正整数;所述最后一次重复传输Msg1所对应的随机接入时机包括:每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机,或者,全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机。
在一些可选实施例中,所述随机接入响应时间窗的起始时刻位于每次重复传输Msg1所对应的 随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号。
在一些可选实施例中,所述随机接入响应时间窗的起始时刻位于全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;每个所述第二重复传输集合包括M次重复传输,M为正整数。
在一些可选实施例中,所述随机接入响应时间窗的起始时刻位于每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;每个所述第二重复传输集合包括M次重复传输,M为正整数。
在一些可选实施例中,所述网络设备900还包括:
第六发送单元902,配置为向终端设备发送第三指示信息,所述第三指示信息用于指示重复传输Msg1的次数。
在一些可选实施例中,所述第三指示信息携带于下述信息中的至少一项:第三高层信令和第三DCI。
在一些可选实施例中,所述第四处理单元901,还配置为若所述终端设备在所述随机接入响应时间窗内接收到承载Msg2的PDSCH和/或调度PDSCH的PDCCH,则停止重复传输Msg1。
在一些可选实施例中,所述第四处理单元901,还配置为根据重复传输Msg3的时间,确定竞争解决定时器的启动时刻。
在一些可选实施例中,所述重复传输消息Msg3的时间,包括以下至少之一:每次重复传输Msg3的时间;最后一次重复传输Msg3的时间。
在一些可选实施例中,所述网络设备每次指示的N次重复传输为一个第一重复传输集合;所述最后一次重复传输Msg3的时间包括:每个第一重复传输集合中最后一次重复传输Msg3的时间,或者,全部第一重复传输集合中最后一次重复传输Msg3的时间。
在一些可选实施例中,所述竞争解决定时器的启动时刻位于每次重复传输Msg3之后的第一个符号。
在一些可选实施例中,所述竞争解决定时器的启动时刻位于全部第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
在一些可选实施例中,所述竞争解决定时器的启动时刻位于每个第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
在一些可选实施例中,所述网络设备900还包括:
第七发送单元903,配置为向所述终端设备设备发送第一指示信息,所述第一指示信息用于指示重复传输Msg3的次数。
在一些可选实施例中,所述第一指示信息携带于下述信息中的至少一项:第一高层信令、RAR承载的上行授权和第一DCI。
在一些可选实施例中,所述网络设备900还包括:
第八发送单元904,配置为若在所述竞争解决定时器运行期间,所述网络设备未成功接收重复传输的Msg3,则向终端设备发送第二指示信息。
在一些可选实施例中,所述第二指示信息携带于第二DCI中,所述第二DCI用于调度所述终端设备再次重复传输所述Msg3。
在一些可选实施例中,所述再次重复传输所述Msg3的次数可通过下述中的一种信息确定:所述网络设备上一次指示重复传输所述Msg3的次数、第二高层信令和第二DCI。
需要说明的是,本申请实施例涉及的发送单元的功能可由发送器、或发射器、或收发器实现;本申请实施例涉及的接收单元的功能可由接收器、或收发器实现;本申请实施例涉及的处理单元的功能可由处理器实现。
本申请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方法的步骤。
本申请实施例还提供一种网络设备,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,执行上述网络设备执行的随机接入方法的步骤。
本申请实施例还提供一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得 安装有所述芯片的设备执行上述终端设备执行的随机接入方法。
本申请实施例还提供一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行上述网络设备执行的随机接入方法。
本申请实施例还提供一种存储介质,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方法。
本申请实施例还提供一种存储介质,存储有可执行程序,所述可执行程序被处理器执行时,实现上述网络设备执行的随机接入方法。
本申请实施例还提供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终端设备执行的随机接入方法。
本申请实施例还提供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网络设备执行的随机接入方法。
本申请实施例还提供一种计算机程序,所述计算机程序使得计算机执行上述终端设备执行的随机接入方法。
本申请实施例还提供一种计算机程序,所述计算机程序使得计算机执行上述网络设备执行的随机接入方法。
图18是本申请实施例的电子设备(终端设备或网络设备)的硬件组成结构示意图,电子设备700包括:至少一个处理器701、存储器702和至少一个网络接口704。电子设备700中的各个组件通过总线系统705耦合在一起。可理解,总线系统705用于实现这些组件之间的连接通信。总线系统705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18中将各种总线都标为总线系统705。
可以理解,存储器702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)。本申请实施例描述的存储器702旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例中的存储器702用于存储各种类型的数据以支持电子设备700的操作。这些数据的示例包括:用于在电子设备700上操作的任何计算机程序,如应用程序7022。实现本申请实施例方法的程序可以包含在应用程序7022中。
上述本申请实施例揭示的方法可以应用于处理器701中,或者由处理器701实现。处理器701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701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701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701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。软件模块可以位于存储介质中,该存储介质位于存储器702,处理器701读取存储器702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700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。
本申请是参照根据本申请实施例的方法、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。
应理解,本申请中术语“系统”和“网络”在本文中常被可互换使用。本申请中术语“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,本申请中字符“/”,一般表示前后关联对象是一种“或”的关系。
以上所述,仅为本申请的较佳实施例而已,并非用于限定本申请的保护范围,凡在本申请的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本申请的保护范围之内。

Claims (176)

  1. 一种随机接入方法,所述方法包括:
    终端设备根据重复传输消息Msg3的时间,确定竞争解决定时器的启动时刻。
  2. 根据权利要求1所述的方法,其中,所述重复传输Msg3的时间,包括以下至少之一:
    每次重复传输Msg3的时间;
    最后一次重复传输Msg3的时间。
  3. 根据权利要求2所述的方法,其中,网络设备每次指示的N次重复传输为一个第一重复传输集合,N为正整数;
    所述最后一次重复传输Msg3的时间包括:每个第一重复传输集合中最后一次重复传输Msg3的时间,或者,全部第一重复传输集合中最后一次重复传输Msg3的时间。
  4. 根据权利要求1至3任一项所述的方法,其中,所述竞争解决定时器的启动时刻位于每次重复传输Msg3之后的第一个符号。
  5. 根据权利要求1至3任一项所述的方法,其中,所述竞争解决定时器的启动时刻位于全部第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;
    所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
  6. 根据权利要求1至3任一项所述的方法,其中,所述竞争解决定时器的启动时刻位于每个第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;
    所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
  7. 根据权利要求1至6任一项所述的方法,其中,所述方法还包括:
    所述终端设备接收网络设备发送的第一指示信息,所述第一指示信息用于指示重复传输Msg3的次数。
  8. 根据权利要求7所述的方法,其中,所述第一指示信息携带于下述信息中的至少一项:
    第一高层信令、随机接入响应RAR承载的上行授权和第一下行控制信令DCI。
  9. 根据权利要求1至8任一项所述的方法,其中,所述方法还包括:
    若在所述竞争解决定时器运行期间,所述网络设备未成功接收重复传输的Msg3,则所述终端设备接收第二指示信息。
  10. 根据权利要求9所述的方法,其中,所述第二指示信息携带于第二DCI中,所述第二DCI用于调度所述终端设备再次重复传输所述Msg3。
  11. 根据权利要求9或10所述的方法,其中,所述方法还包括:
    所述终端设备基于所述第二指示信息,再次重复传输所述Msg3。
  12. 根据权利要求10所述的方法,其中,所述再次重复传输所述Msg3的次数可通过下述中的一种信息确定:
    所述网络设备上一次指示重复传输所述Msg3的次数、第二高层信令和第二DCI。
  13. 根据权利要求1至12任一项所述的方法,其中,若所述终端设备在重复传输Msg3结束之前接收到Msg4和/或调度Msg4的物理下行控制信道PDCCH,则所述终端设备停止重复传输Msg3。
  14. 根据权利要求1至13任一项所述的方法,其中,所述方法还包括:
    所述终端设备根据重复传输Msg1所对应的随机接入时机确定随机接入响应时间窗的起始时刻。
  15. 根据权利要求14所述的方法,其中,所述重复传输Msg1所对应的随机接入时机包括以下至少之一:
    每次重复传输Msg1所对应的随机接入时机;
    最后一次重复传输Msg1所对应的随机接入时机。
  16. 根据权利要求15所述的方法,其中,M次重复传输为一个第二重复传输集合,M为正整数;
    所述最后一次重复传输Msg1所对应的随机接入时机包括:每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机,或者,全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机。
  17. 根据权利要求14至16任一项所述的方法,其中,所述随机接入响应时间窗的起始时刻位于每次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号。
  18. 根据权利要求14至16任一项的方法,其中,所述随机接入响应时间窗的起始时刻位于全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;
    每个所述第二重复传输集合包括M次重复传输,M为正整数。
  19. 根据权利要求14至16任一项所述的方法,其中,所述随机接入响应时间窗的起始时刻位于每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;
    每个所述第二重复传输集合包括M次重复传输,M为正整数。
  20. 根据权利要求14至19任一项所述的方法,其中,所述方法还包括:
    所述终端设备接收网络设备发送的第三指示信息,所述第三指示信息用于指示重复传输Msg1的次数。
  21. 根据权利要求20所述的方法,其中,所述第三指示信息携带于下述信息中的至少一项:
    第三高层信令和第三DCI。
  22. 根据权利要求14至21任一项所述的方法,其中,若所述终端设备在所述随机接入响应时间窗内接收到承载Msg2的物理下行共享信道PDSCH和/或调度PDSCH的物理下行控制信道PDCCH,则所述终端设备停止重复传输Msg1。
  23. 一种随机接入方法,所述方法包括:
    终端设备根据重复传输消息Msg1所对应的随机接入时机确定随机接入响应时间窗的起始时刻。
  24. 根据权利要求23所述的方法,其中,所述重复传输Msg1所对应的随机接入时机包括以下至少之一:
    每次重复传输Msg1所对应的随机接入时机;
    最后一次重复传输Msg1所对应的随机接入时机。
  25. 根据权利要求24所述的方法,其中,M次重复传输为一个第二重复传输集合,M为正整数;
    所述最后一次重复传输Msg1所对应的随机接入时机包括:每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机,或者,全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机。
  26. 根据权利要求23至25任一项所述的方法,其中,所述随机接入响应时间窗的起始时刻位于每次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号。
  27. 根据权利要求23至25任一项的方法,其中,所述随机接入响应时间窗的起始时刻位于全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;
    每个所述第二重复传输集合包括M次重复传输,M为正整数。
  28. 根据权利要求23至25任一项所述的方法,其中,所述随机接入响应时间窗的起始时刻位于每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;
    每个所述第二重复传输集合包括M次重复传输,M为正整数。
  29. 根据权利要求23至28任一项所述的方法,其中,所述方法还包括:
    所述终端设备接收网络设备发送的第三指示信息,所述第三指示信息用于指示重复传输Msg1的次数。
  30. 根据权利要求29所述的方法,其中,所述第三指示信息携带于下述信息中的至少一项:
    第三高层信令和第三下行控制信令DCI。
  31. 根据权利要求23至30任一项所述的方法,其中,若所述终端设备在所述随机接入响应时间窗内接收到承载Msg2的物理下行共享信道PDSCH和/或调度PDSCH的物理下行控制信道PDCCH,则所述终端设备停止重复传输Msg1。
  32. 根据权利要求23至31任一项所述的方法,其中,所述方法还包括:
    所述终端设备根据重复传输Msg3的时间,确定竞争解决定时器的启动时刻。
  33. 根据权利要求32所述的方法,其中,所述重复传输消息Msg3的时间,包括以下至少之一:
    每次重复传输Msg3的时间;
    最后一次重复传输Msg3的时间。
  34. 根据权利要求33所述的方法,其中,所述网络设备每次指示的N次重复传输为一个第一重复传输集合;
    所述最后一次重复传输Msg3的时间包括:每个第一重复传输集合中最后一次重复传输Msg3的时间,或者,全部第一重复传输集合中最后一次重复传输Msg3的时间。
  35. 根据权利要求32至34任一项所述的方法,其中,所述竞争解决定时器的启动时刻位于每次重复传输Msg3之后的第一个符号。
  36. 根据权利要求32至34任一项所述的方法,其中,所述竞争解决定时器的启动时刻位于全部第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;
    所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
  37. 根据权利要求32至34任一项所述的方法,其中,所述竞争解决定时器的启动时刻位于每个第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;
    所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
  38. 根据权利要求32至37任一项所述的方法,其中,所述方法还包括:
    所述终端设备接收网络设备发送的第一指示信息,所述第一指示信息用于指示重复传输Msg3的次数。
  39. 根据权利要求38所述的方法,其中,所述第一指示信息携带于下述信息中的至少一项:
    第一高层信令、随机接入响应RAR承载的上行授权和第一令DCI。
  40. 根据权利要求32至39任一项所述的方法,其中,所述方法还包括:
    若在所述竞争解决定时器运行期间,所述网络设备未成功接收重复传输的Msg3,则所述终端设备接收第二指示信息。
  41. 根据权利要求40所述的方法,其中,所述第二指示信息携带于第二DCI中,所述第二DCI用于调度所述终端设备再次重复传输所述Msg3。
  42. 根据权利要求40或41所述的方法,其中,所述方法还包括:
    所述终端设备基于所述第二指示信息,再次重复传输所述Msg3。
  43. 根据权利要求41所述的方法,其中,所述再次重复传输所述Msg3的次数可通过下述中的一种信息确定:
    所述网络设备上一次指示重复传输所述Msg3的次数、第二高层信令和第二DCI。
  44. 根据权利要求32至43任一项所述的方法,其中,若所述终端设备在重复传输Msg3结束之前接收到Msg4和/或调度Msg4的物理下行控制信道PDCCH,则所述终端设备停止重复传输Msg3。
  45. 一种随机接入方法,所述方法包括:
    网络设备根据重复传输消息Msg3的时间,确定竞争解决定时器的启动时刻。
  46. 根据权利要求45所述的方法,其中,所述重复传输消息Msg3的时间,包括以下至少之一:
    每次重复传输Msg3的时间;
    最后一次重复传输Msg3的时间。
  47. 根据权利要求46所述的方法,其中,网络设备每次指示的N次重复传输为一个第一重复传输集合,N为正整数;
    所述最后一次重复传输Msg3的时间包括:每个第一重复传输集合中最后一次重复传输Msg3的时间,或者,全部第一重复传输集合中最后一次重复传输Msg3的时间。
  48. 根据权利要求45至47任一项所述的方法,其中,所述竞争解决定时器的启动时刻位于每次重复传输Msg3之后的第一个符号。
  49. 根据权利要求45至47任一项所述的方法,其中,所述竞争解决定时器的启动时刻位于全部第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;
    所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
  50. 根据权利要求45至47任一项所述的方法,其中,所述竞争解决定时器的启动时刻位于每个第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;
    所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
  51. 根据权利要求45至50任一项所述的方法,其中,所述方法还包括:
    所述网络设备向终端设备发送第一指示信息,所述第一指示信息用于指示重复传输Msg3的次数。
  52. 根据权利要求51所述的方法,其中,所述第一指示信息携带于下述信息中的至少一项:
    第一高层信令、随机接入响应RAR承载的上行授权和第一下行控制信令DCI。
  53. 根据权利要求45至52任一项所述的方法,其中,所述方法还包括:
    若在所述竞争解决定时器运行期间,所述网络设备未成功接收重复传输的Msg3,则所述网络设备向终端设备发送第二指示信息。
  54. 根据权利要求53所述的方法,其中,所述第二指示信息携带于第二DCI中,所述第二DCI用于调度所述终端设备再次重复传输所述Msg3。
  55. 根据权利要求54所述的方法,其中,所述再次重复传输所述Msg3的次数可通过下述中的一种信息确定:
    所述网络设备上一次指示重复传输所述Msg3的次数、第二高层信令和第二DCI。
  56. 根据权利要求45至55任一项所述的方法,其中,所述方法还包括:
    所述网络设备根据重复传输Msg1所对应的随机接入时机确定随机接入响应时间窗的起始时刻。
  57. 根据权利要求56所述的方法,其中,所述重复传输Msg1所对应的随机接入时机包括以下至少之一:
    每次重复传输Msg1所对应的随机接入时机;
    最后一次重复传输Msg1所对应的随机接入时机。
  58. 根据权利要求57所述的方法,其中,M次重复传输为一个第二重复传输集合,M为正整数;
    所述最后一次重复传输Msg1所对应的随机接入时机包括:每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机,或者,全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机。
  59. 根据权利要求56至58任一项所述的方法,其中,所述随机接入响应时间窗的起始时刻位于每次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号。
  60. 根据权利要求56至58任一项所述的方法,其中,所述随机接入响应时间窗的起始时刻位于全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;
    每个所述第二重复传输集合包括M次重复传输,M为正整数。
  61. 根据权利要求56至58任一项所述的方法,其中,所述随机接入响应时间窗的起始时刻位于每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;
    每个所述第二重复传输集合包括M次重复传输,M为正整数。
  62. 根据权利要求56至61任一项所述的方法,其中,所述方法还包括:
    所述网络设备向终端设备发送第三指示信息,所述第三指示信息用于指示重复传输Msg1的次数。
  63. 根据权利要求62所述的方法,其中,所述第三指示信息携带于下述信息中的至少一项:
    第三高层信令和第三DCI。
  64. 一种随机接入方法,所述方法包括:
    网络设备根据重复传输消息Msg1所对应的随机接入时机,确定随机接入响应时间窗的起始时刻。
  65. 根据权利要求64所述的方法,其中,所述重复传输Msg1所对应的随机接入时机包括以下至少之一:
    每次重复传输Msg1所对应的随机接入时机;
    最后一次重复传输Msg1所对应的随机接入时机。
  66. 根据权利要求65所述的方法,其中,M次重复传输为一个第二重复传输集合,M为正整数;
    所述最后一次重复传输Msg1所对应的随机接入时机包括:每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机,或者,全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机。
  67. 根据权利要求64至66任一项所述的方法,其中,所述随机接入响应时间窗的起始时刻位于每次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号。
  68. 根据权利要求64至66任一项所述的方法,其中,所述随机接入响应时间窗的起始时刻位于全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;
    每个所述第二重复传输集合包括M次重复传输,M为正整数。
  69. 根据权利要求64至66任一项所述的方法,其中,所述随机接入响应时间窗的起始时刻位于每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;
    每个所述第二重复传输集合包括M次重复传输,M为正整数。
  70. 根据权利要求64至69任一项所述的方法,其中,所述方法还包括:
    所述网络设备向终端设备发送第三指示信息,所述第三指示信息用于指示重复传输Msg1的次数。
  71. 根据权利要求70所述的方法,其中,所述第三指示信息携带于下述信息中的至少一项:
    第三高层信令和第三下行控制信令DCI。
  72. 根据权利要求64至71任一项所述的方法,其中,若所述终端设备在所述随机接入响应时间窗内接收到承载Msg2的物理下行共享信道PDSCH和/或调度PDSCH的物理下行控制信道PDCCH,则所述终端设备停止重复传输Msg1。
  73. 根据权利要求64至72任一项所述的方法,其中,所述方法还包括:
    所述网络设备根据重复传输Msg3的时间,确定竞争解决定时器的启动时刻。
  74. 根据权利要求73所述的方法,其中,所述重复传输消息Msg3的时间,包括以下至少之一:
    每次重复传输Msg3的时间;
    最后一次重复传输Msg3的时间。
  75. 根据权利要求74所述的方法,其中,所述网络设备每次指示的N次重复传输为一个第一重复传输集合;
    所述最后一次重复传输Msg3的时间包括:每个第一重复传输集合中最后一次重复传输Msg3的时间,或者,全部第一重复传输集合中最后一次重复传输Msg3的时间。
  76. 根据权利要求73至75任一项所述的方法,其中,所述竞争解决定时器的启动时刻位于每次重复传输Msg3之后的第一个符号。
  77. 根据权利要求73至75任一项所述的方法,其中,所述竞争解决定时器的启动时刻位于全部第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;
    所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
  78. 根据权利要求73至75任一项所述的方法,其中,所述竞争解决定时器的启动时刻位于每个第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;
    所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
  79. 根据权利要求73至78任一项所述的方法,其中,所述方法还包括:
    所述网络设备向所述终端设备设备发送第一指示信息,所述第一指示信息用于指示重复传输Msg3的次数。
  80. 根据权利要求79所述的方法,其中,所述第一指示信息携带于下述信息中的至少一项:
    第一高层信令、随机接入响应RAR承载的上行授权和第一DCI。
  81. 根据权利要求73至80任一项所述的方法,其中,所述方法还包括:
    若在所述竞争解决定时器运行期间,所述网络设备未成功接收重复传输的Msg3,则所述网络设备向终端设备发送第二指示信息。
  82. 根据权利要求81所述的方法,其中,所述第二指示信息携带于第二DCI中,所述第二DCI用于调度所述终端设备再次重复传输所述Msg3。
  83. 根据权利要求82所述的方法,其中,所述再次重复传输所述Msg3的次数可通过下述中的一种信息确定:
    所述网络设备上一次指示重复传输所述Msg3的次数、第二高层信令和第二DCI。
  84. 一种终端设备,所述终端设备包括:
    第一处理单元,配置为根据重复传输消息Msg3的时间,确定竞争解决定时器的启动时刻。
  85. 根据权利要求84所述的终端设备,其中,所述重复传输Msg3的时间,包括以下至少之一:
    每次重复传输Msg3的时间;
    最后一次重复传输Msg3的时间。
  86. 根据权利要求85所述的终端设备,其中,网络设备每次指示的N次重复传输为一个第一重复传输集合,N为正整数;
    所述最后一次重复传输Msg3的时间包括:每个第一重复传输集合中最后一次重复传输Msg3的时间,或者,全部第一重复传输集合中最后一次重复传输Msg3的时间。
  87. 根据权利要求84至86任一项所述的终端设备,其中,所述竞争解决定时器的启动时刻位于每次重复传输Msg3之后的第一个符号。
  88. 根据权利要求84至86任一项所述的终端设备,其中,所述竞争解决定时器的启动时刻位于全部第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;
    所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
  89. 根据权利要求84至86任一项所述的终端设备,其中,所述竞争解决定时器的启动时刻位于每个第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;
    所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
  90. 根据权利要求84至89任一项所述的终端设备,其中,所述终端设备还包括:
    第一接收单元,配置为接收网络设备发送的第一指示信息,所述第一指示信息用于指示重复传输Msg3的次数。
  91. 根据权利要求90所述的终端设备,其中,所述第一指示信息携带于下述信息中的至少一项:
    第一高层信令、RAR承载的上行授权和第一DCI。
  92. 根据权利要求84至91任一项所述的终端设备,其中,所述终端设备还包括:
    第二接收单元,配置为若在所述竞争解决定时器运行期间,所述网络设备未成功接收重复传输的Msg3,则接收第二指示信息。
  93. 根据权利要求92所述的终端设备,其中,所述第二指示信息携带于第二DCI中,所述第二DCI用于调度所述终端设备再次重复传输所述Msg3。
  94. 根据权利要求92或93所述的终端设备,其中,所述终端设备还包括:
    第一发送单元,配置为基于所述第二指示信息,再次重复传输所述Msg3。
  95. 根据权利要求93所述的终端设备,其中,所述再次重复传输所述Msg3的次数可通过下述中的一种信息确定:
    所述网络设备上一次指示重复传输所述Msg3的次数、第二高层信令和第二DCI。
  96. 根据权利要求84至95任一项所述的终端设备,其中,所述第一处理单元,还配置为若所述终端设备在重复传输Msg3结束之前接收到Msg4和/或调度Msg4的物理下行控制信道PDCCH,则停止重复传输Msg3。
  97. 根据权利要求84至96任一项所述的终端设备,其中,所述第一处理单元,还配置为根据重复传输Msg1所对应的随机接入时机确定随机接入响应时间窗的起始时刻。
  98. 根据权利要求97所述的终端设备,其中,所述重复传输Msg1所对应的随机接入时机包括以下至少之一:
    每次重复传输Msg1所对应的随机接入时机;
    最后一次重复传输Msg1所对应的随机接入时机。
  99. 根据权利要求98所述的终端设备,其中,M次重复传输为一个第二重复传输集合,M为正整数;
    所述最后一次重复传输Msg1所对应的随机接入时机包括:每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机,或者,全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机。
  100. 根据权利要求97至99任一项所述的终端设备,其中,所述随机接入响应时间窗的起始时刻位于每次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号。
  101. 根据权利要求97至99任一项所述的终端设备,其中,所述随机接入响应时间窗的起始时刻位于全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;
    每个所述第二重复传输集合包括M次重复传输,M为正整数。
  102. 根据权利要求97至99任一项所述的终端设备,其中,所述随机接入响应时间窗的起始时刻位于每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;
    每个所述第二重复传输集合包括M次重复传输,M为正整数。
  103. 根据权利要求97至102任一项所述的终端设备,其中,所述终端设备还包括:
    第三接收单元,配置为接收网络设备发送的第三指示信息,所述第三指示信息用于指示重复传输Msg1的次数。
  104. 根据权利要求103所述的终端设备,其中,所述第三指示信息携带于下述信息中的至少一项:
    第三高层信令和第三DCI。
  105. 根据权利要求97至104任一项所述的终端设备,其中,所述第二处理单元,还配置为若所述终端设备在所述随机接入响应时间窗内接收到承载Msg2的物理下行共享信道PDSCH和/或调度PDSCH的物理下行控制信道PDCCH,则停止重复传输Msg1。
  106. 一种终端设备,所述终端设备包括:
    第二处理单元,配置为根据重复传输消息Msg1所对应的随机接入时机确定随机接入响应时间窗的起始时刻。
  107. 根据权利要求106所述的终端设备,其中,所述重复传输Msg1所对应的随机接入时机包括以下至少之一:
    每次重复传输Msg1所对应的随机接入时机;
    最后一次重复传输Msg1所对应的随机接入时机。
  108. 根据权利要求107所述的终端设备,其中,M次重复传输为一个第二重复传输集合,M为正整数;
    所述最后一次重复传输Msg1所对应的随机接入时机包括:每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机,或者,全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机。
  109. 根据权利要求106至108任一项所述的终端设备,其中,所述随机接入响应时间窗的起始时刻位于每次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号。
  110. 根据权利要求106至108任一项所述的终端设备,其中,所述随机接入响应时间窗的起始时刻位于全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;
    每个所述第二重复传输集合包括M次重复传输,M为正整数。
  111. 根据权利要求106至108任一项所述的终端设备,其中,所述随机接入响应时间窗的起始时刻位于每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;
    每个所述第二重复传输集合包括M次重复传输,M为正整数。
  112. 根据权利要求106至111任一项所述的终端设备,其中,所述终端设备还包括:
    第四接收单元,配置为接收网络设备发送的第三指示信息,所述第三指示信息用于指示重复传输Msg1的次数。
  113. 根据权利要求112所述的终端设备,其中,所述第三指示信息携带于下述信息中的至少一项:
    第三高层信令和第三下行控制信令DCI。
  114. 根据权利要求106至113任一项所述的终端设备,其中,所述第二处理单元,还配置为若所述终端设备在所述随机接入响应时间窗内接收到承载Msg2的物理下行共享信道PDSCH和/或调度PDSCH的物理下行控制信道PDCCH,则停止重复传输Msg1。
  115. 根据权利要求106至114任一项所述的终端设备,其中,
    所述第二处理单元,还配置为根据重复传输Msg3的时间,确定竞争解决定时器的启动时刻。
  116. 根据权利要求115所述的终端设备,其中,所述重复传输消息Msg3的时间,包括以下至少之一:
    每次重复传输Msg3的时间;
    最后一次重复传输Msg3的时间。
  117. 根据权利要求116所述的终端设备,其中,所述网络设备每次指示的N次重复传输为一个第一重复传输集合;
    所述最后一次重复传输Msg3的时间包括:每个第一重复传输集合中最后一次重复传输Msg3的 时间,或者,全部第一重复传输集合中最后一次重复传输Msg3的时间。
  118. 根据权利要求115至117任一项所述的终端设备,其中,所述竞争解决定时器的启动时刻位于每次重复传输Msg3之后的第一个符号。
  119. 根据权利要求115至117任一项所述的终端设备,其中,所述竞争解决定时器的启动时刻位于全部第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;
    所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
  120. 根据权利要求115至117任一项所述的终端设备,其中,所述竞争解决定时器的启动时刻位于每个第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;
    所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
  121. 根据权利要求115至120任一项所述的终端设备,其中,所述终端设备还包括:
    第五接收单元,配置为接收网络设备发送的第一指示信息,所述第一指示信息用于指示重复传输Msg3的次数。
  122. 根据权利要求121所述的终端设备,其中,所述第一指示信息携带于下述信息中的至少一项:
    第一高层信令、随机接入响应RAR承载的上行授权和第一DCI。
  123. 根据权利要求115至122任一项所述的终端设备,其中,所述终端设备还包括:
    第六接收单元,配置为若在所述竞争解决定时器运行期间,所述网络设备未成功接收重复传输的Msg3,则接收第二指示信息。
  124. 根据权利要求123所述的终端设备,其中,所述第二指示信息携带于第二DCI中,所述第二DCI用于调度所述终端设备再次重复传输所述Msg3。
  125. 根据权利要求123或124所述的终端设备,其中,所述终端设备还包括:
    第二发送单元,配置为基于所述第二指示信息再次重复传输所述Msg3。
  126. 根据权利要求125所述的终端设备,其中,所述再次重复传输所述Msg3的次数可通过下述中的一种信息确定:
    所述网络设备上一次指示重复传输所述Msg3的次数、第二高层信令和第二DCI。
  127. 根据权利要求115至126任一项所述的终端设备,其中,所述第二处理单元,还配置为若所述终端设备在重复传输Msg3结束之前接收到Msg4和/或调度Msg4的物理下行控制信道PDCCH,则停止重复传输Msg3。
  128. 一种网络设备,所述网络设备包括:
    第三处理单元,根据重复传输消息Msg3的时间,确定竞争解决定时器的启动时刻。
  129. 根据权利要求128所述的网络设备,其中,所述重复传输消息Msg3的时间,包括以下至少之一:
    每次重复传输Msg3的时间;
    最后一次重复传输Msg3的时间。
  130. 根据权利要求129所述的网络设备,其中,网络设备每次指示的N次重复传输为一个第一重复传输集合,N为正整数;
    所述最后一次重复传输Msg3的时间包括:每个第一重复传输集合中最后一次重复传输Msg3的时间,或者,全部第一重复传输集合中最后一次重复传输Msg3的时间。
  131. 根据权利要求128至130任一项所述的网络设备,其中,所述竞争解决定时器的启动时刻位于每次重复传输Msg3之后的第一个符号。
  132. 根据权利要求128至130任一项所述的网络设备,其中,所述竞争解决定时器的启动时刻位于全部第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;
    所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
  133. 根据权利要求128至130任一项所述的网络设备,其中,所述竞争解决定时器的启动时刻位于每个第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;
    所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
  134. 根据权利要求128至133任一项所述的网络设备,其中,所述网络设备还包括:
    第三发送单元,配置为向终端设备发送第一指示信息,所述第一指示信息用于指示重复传输Msg3的次数。
  135. 根据权利要求134所述的网络设备,其中,所述第一指示信息携带于下述信息中的至少一项:
    第一高层信令、随机接入响应RAR承载的上行授权和第一下行控制信令DCI。
  136. 根据权利要求128至135任一项所述的网络设备,其中,所述网络设备还包括:
    第四发送单元,配置为若在所述竞争解决定时器运行期间,所述网络设备未成功接收重复传输的Msg3,则向终端设备发送第二指示信息。
  137. 根据权利要求136所述的网络设备,其中,所述第二指示信息携带于第二DCI中,所述第二DCI用于调度所述终端设备再次重复传输所述Msg3。
  138. 根据权利要求137所述的网络设备,其中,所述再次重复传输所述Msg3的次数可通过下述中的一种信息确定:
    所述网络设备上一次指示重复传输所述Msg3的次数、第二高层信令和第二DCI。
  139. 根据权利要求128至138任一项所述的网络设备,其中,所述第三处理单元,还配置为根据重复传输Msg1所对应的随机接入时机确定随机接入响应时间窗的起始时刻。
  140. 根据权利要求139所述的网络设备,其中,所述重复传输Msg1所对应的随机接入时机包括以下至少之一:
    每次重复传输Msg1所对应的随机接入时机;
    最后一次重复传输Msg1所对应的随机接入时机。
  141. 根据权利要求140所述的网络设备,其中,M次重复传输为一个第二重复传输集合,M为正整数;
    所述最后一次重复传输Msg1所对应的随机接入时机包括:每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机,或者,全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机。
  142. 根据权利要求139至141任一项所述的网络设备,其中,所述随机接入响应时间窗的起始时刻位于每次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号。
  143. 根据权利要求139至141任一项所述的网络设备,其中,所述随机接入响应时间窗的起始时刻位于全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;
    每个所述第二重复传输集合包括M次重复传输,M为正整数。
  144. 根据权利要求139至141任一项所述的网络设备,其中,所述随机接入响应时间窗的起始时刻位于每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;
    每个所述第二重复传输集合包括M次重复传输,M为正整数。
  145. 根据权利要求139至144任一项所述的网络设备,其中,所述网络设备还包括:
    第五发送单元,配置为向终端设备发送第三指示信息,所述第三指示信息用于指示重复传输Msg1的次数。
  146. 根据权利要求145所述的网络设备,其中,所述第三指示信息携带于下述信息中的至少一项:
    第三高层信令和第三DCI。
  147. 一种网络设备,所述网络设备包括:
    第四处理单元,配置为根据重复传输消息Msg1所对应的随机接入时机,确定随机接入响应时间窗的起始时刻。
  148. 根据权利要求147所述的网络设备,其中,所述重复传输Msg1所对应的随机接入时机包括以下至少之一:
    每次重复传输Msg1所对应的随机接入时机;
    最后一次重复传输Msg1所对应的随机接入时机。
  149. 根据权利要求148所述的网络设备,其中,M次重复传输为一个第二重复传输集合,M为正整数;
    所述最后一次重复传输Msg1所对应的随机接入时机包括:每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机,或者,全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机。
  150. 根据权利要求147至149任一项所述的网络设备,其中,所述随机接入响应时间窗的起始时刻位于每次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、 最早的控制资源集中的第一个符号。
  151. 根据权利要求147至149任一项所述的网络设备,其中,所述随机接入响应时间窗的起始时刻位于全部第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;
    每个所述第二重复传输集合包括M次重复传输,M为正整数。
  152. 根据权利要求147至149任一项所述的网络设备,其中,所述随机接入响应时间窗的起始时刻位于每个第二重复传输集合中最后一次重复传输Msg1所对应的随机接入时机的最后一个符号之后的至少一个符号之后的、最早的控制资源集中的第一个符号;
    每个所述第二重复传输集合包括M次重复传输,M为正整数。
  153. 根据权利要求147至152任一项所述的网络设备,其中,所述网络设备还包括:
    第六发送单元,配置为向终端设备发送第三指示信息,所述第三指示信息用于指示重复传输Msg1的次数。
  154. 根据权利要求153所述的网络设备,其中,所述第三指示信息携带于下述信息中的至少一项:
    第三高层信令和第三下行控制信令DCI。
  155. 根据权利要求147至154任一项所述的网络设备,其中,所述第四处理单元,还配置为若所述终端设备在所述随机接入响应时间窗内接收到承载Msg2的物理下行共享信道PDSCH和/或调度PDSCH的物理下行控制信道PDCCH,则停止重复传输Msg1。
  156. 根据权利要求147至155任一项所述的网络设备,其中,所述第四处理单元,还配置为根据重复传输Msg3的时间,确定竞争解决定时器的启动时刻。
  157. 根据权利要求156所述的网络设备,其中,所述重复传输消息Msg3的时间,包括以下至少之一:
    每次重复传输Msg3的时间;
    最后一次重复传输Msg3的时间。
  158. 根据权利要求157所述的网络设备,其中,所述网络设备每次指示的N次重复传输为一个第一重复传输集合;
    所述最后一次重复传输Msg3的时间包括:每个第一重复传输集合中最后一次重复传输Msg3的时间,或者,全部第一重复传输集合中最后一次重复传输Msg3的时间。
  159. 根据权利要求156至158任一项所述的网络设备,其中,所述竞争解决定时器的启动时刻位于每次重复传输Msg3之后的第一个符号。
  160. 根据权利要求156至158任一项所述的网络设备,其中,所述竞争解决定时器的启动时刻位于全部第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;
    所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
  161. 根据权利要求156至158任一项所述的网络设备,其中,所述竞争解决定时器的启动时刻位于每个第一重复传输集合中最后一次重复传输Msg3之后的第一个符号;
    所述第一重复传输集合包括网络设备每次指示的N次重复传输,N为正整数。
  162. 根据权利要求156至161任一项所述的网络设备,其中,所述网络设备还包括:
    第七发送单元,配置为向所述终端设备设备发送第一指示信息,所述第一指示信息用于指示重复传输Msg3的次数。
  163. 根据权利要求162所述的网络设备,其中,所述第一指示信息携带于下述信息中的至少一项:
    第一高层信令、随机接入响应RAR承载的上行授权和第一DCI。
  164. 根据权利要求156至163任一项所述的网络设备,其中,所述网络设备还包括:
    第八发送单元,配置为若在所述竞争解决定时器运行期间,所述网络设备未成功接收重复传输的Msg3,则向终端设备发送第二指示信息。
  165. 根据权利要求164所述的网络设备,其中,所述第二指示信息携带于第二DCI中,所述第二DCI用于调度所述终端设备再次重复传输所述Msg3。
  166. 根据权利要求165所述的网络设备,其中,所述再次重复传输所述Msg3的次数可通过下述中的一种信息确定:
    所述网络设备上一次指示重复传输所述Msg3的次数、第二高层信令和第二DCI。
  167. 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,执行权利要求1至22任一项所述的随机接入方法的步骤;
    或者,所述处理器用于运行所述计算机程序时,执行权利要求23至44任一项所述的随机接入方法的步骤。
  168. 一种网络设备,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,执行权利要求45至63任一项所述的随机接入方法的步骤;
    护着,所述处理器用于运行所述计算机程序时,执行权利要求64至83任一项所述的随机接入方法的步骤。
  169. 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,实现权利要求1至22任一项所述的随机接入方法;
    或者,所述可执行程序被处理器执行时,实现权利要求23至44任一项所述的随机接入方法。
  170. 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,实现权利要求45至63任一项所述的随机接入方法;
    或者,所述可执行程序被处理器执行时,实现权利要求64至83任一项所述的随机接入方法。
  171. 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如权利要求1至22任一项所述的随机接入方法;
    或者,该计算机程序指令使得计算机执行如权利要求23至44任一项所述的随机接入方法。
  172. 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如权利要求45至63任一项所述的随机接入方法;
    或者,该计算机程序指令使得计算机执行如权利要求64至83任一项所述的随机接入方法。
  173. 一种计算机程序,所述计算机程序使得计算机执行如权利要求1至22任一项所述的随机接入方法;
    或者,所述计算机程序使得计算机执行如权利要求23至44任一项所述的随机接入方法。
  174. 一种计算机程序,所述计算机程序使得计算机执行如权利要求45至63任一项所述的随机接入方法;
    或者,所述计算机程序使得计算机执行如权利要求64至83任一项所述的随机接入方法。
  175. 一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至22任一项所述的随机接入方法;
    或者,使得安装有所述芯片的设备执行如权利要求23至44任一项所述的随机接入方法。
  176. 一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求45至63任一项所述的随机接入方法;
    或者,使得安装有所述芯片的设备执行如权利要求64至83任一项所述的随机接入方法。
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