WO2019242452A1 - 用于物理随机接入信道传输的信道接入方法、装置和程序 - Google Patents

用于物理随机接入信道传输的信道接入方法、装置和程序 Download PDF

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Publication number
WO2019242452A1
WO2019242452A1 PCT/CN2019/088136 CN2019088136W WO2019242452A1 WO 2019242452 A1 WO2019242452 A1 WO 2019242452A1 CN 2019088136 W CN2019088136 W CN 2019088136W WO 2019242452 A1 WO2019242452 A1 WO 2019242452A1
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Prior art keywords
channel access
prach
target
terminal device
access mode
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PCT/CN2019/088136
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English (en)
French (fr)
Inventor
石聪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Publication date
Priority to AU2019291439A priority Critical patent/AU2019291439B2/en
Priority to KR1020207028642A priority patent/KR102861838B1/ko
Priority to EP22158522.7A priority patent/EP4030858B1/en
Priority to SG11202009746PA priority patent/SG11202009746PA/en
Priority to JP2020551997A priority patent/JP7301870B2/ja
Priority to CA3096565A priority patent/CA3096565C/en
Priority to MX2020011204A priority patent/MX2020011204A/es
Priority to CN201980005530.6A priority patent/CN111295921A/zh
Priority to EP19822525.2A priority patent/EP3749034B1/en
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to BR112020020924-4A priority patent/BR112020020924B1/pt
Priority to CN202010555142.XA priority patent/CN111787636B/zh
Priority to ES19822525T priority patent/ES2912078T3/es
Publication of WO2019242452A1 publication Critical patent/WO2019242452A1/zh
Priority to US17/012,615 priority patent/US11051338B2/en
Anticipated expiration legal-status Critical
Priority to US17/338,647 priority patent/US11968709B2/en
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0838—Random access procedures, e.g. with 4-step access using contention-free random access [CFRA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
    • H04W74/0875—Non-scheduled access, e.g. ALOHA using a dedicated channel for access with assigned priorities based access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/02—Hybrid access

Definitions

  • Embodiments of the present application relate to the technical field of wireless networks, and in particular, to a channel access method, device, and program for physical random access channel transmission.
  • Unlicensed spectrum is the spectrum that can be used for radio equipment communication divided by countries and regions. This spectrum is generally considered as shared spectrum, that is, communication equipment in different communication systems can meet the regulatory requirements set by the country or region on the spectrum. Using this spectrum does not require applying for a proprietary spectrum license from the government.
  • communication equipment In order to allow various communication systems that use unlicensed spectrum for wireless communication to coexist friendly on this spectrum, communication equipment must follow the principle of "listen first and then speak", that is, communication equipment usually needs to send signals on the unlicensed spectrum channel.
  • the communication device For channel access (ie, channel detection), the communication device can only send signals when the channel detection result is that the channel is idle. If the channel detection result of the communication device on the channel of the unlicensed spectrum is channel busy, the communication device cannot Signaling is performed.
  • the embodiments of the present application provide a channel access method, device, and program for physical random access channel transmission.
  • a channel access method for physical random access channel transmission including:
  • the terminal device determines a target channel access mode, where the target channel access mode is a channel access mode for the terminal device to transmit the PRACH on an unlicensed carrier;
  • the terminal device determines whether a target time domain resource is available according to the target channel access mode, wherein the target time domain resource is a time domain resource used by the terminal device to send the PRACH.
  • a channel access method for physical random access channel transmission including:
  • the network device sends configuration information to the terminal device, so that the terminal device determines a target channel access method according to the configuration information, and the target channel access method is used for the terminal device to transmit the PRACH on an unlicensed carrier.
  • Channel access mode
  • a channel access method for physical random access channel transmission including:
  • the network device When the random access process corresponding to the PRACH is a non-contention-based random access process, the network device sends first instruction information to the terminal device through physical layer signaling, so that the terminal device determines according to the first instruction information.
  • a target channel access mode where the target channel access mode is a channel access mode used by the terminal device to transmit the PRACH on an unlicensed carrier.
  • a channel access device for physical random access channel transmission for performing the method in the first aspect or the implementation manners of the foregoing.
  • the channel access device for physical random access channel transmission includes a functional module for performing the method in the first aspect or the implementation manners thereof.
  • a channel access device for physical random access channel transmission is provided, which is used to execute the method in the second aspect or its implementations.
  • the channel access device for physical random access channel transmission includes a functional module for performing the method in the second aspect or the implementation manners thereof.
  • a channel access device for physical random access channel transmission is provided, which is configured to execute the method in the third aspect or its implementations.
  • the channel access apparatus for physical random access channel transmission includes a functional module for executing the method in the third aspect or the implementation manners thereof.
  • a communication device including a processor and a memory, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, and execute the first to third aspects described above. Methods in any aspect or implementation thereof.
  • a chip is provided for implementing any one of the foregoing first to third aspects or a method in each implementation manner thereof.
  • the chip includes a processor for invoking and running a computer program from the memory, so that the device installed with the chip executes any one of the first to third aspects described above or implementations thereof. method.
  • a computer-readable storage medium for storing a computer program that causes a computer to execute the method in any one of the first to third aspects described above or in its implementations.
  • a computer program product including computer program instructions that cause a computer to execute any one of the first to third aspects described above or a method in each implementation thereof.
  • a computer program that, when run on a computer, causes the computer to execute any one of the first to third aspects described above or a method in each implementation thereof.
  • the terminal device can first determine the target channel access method, and then, can determine whether the target time domain resource is available according to the target channel access method, where the target time domain resource is the terminal.
  • the device is used to send PRACH time domain resources.
  • Terminal devices send PRACH when the target time domain resources are available, which can ensure fairness in the use of unlicensed spectrum and also guarantee the performance of PRACH transmission.
  • FIG. 1 is a schematic diagram of a communication system architecture according to an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a channel access method for PRACH transmission according to an embodiment of the present application.
  • FIG. 3 is a first schematic block diagram of a channel access apparatus for PRACH transmission according to an embodiment of the present application.
  • FIG. 4 is a second schematic block diagram of a channel access apparatus for PRACH transmission according to an embodiment of the present application.
  • FIG. 5 is a third schematic block diagram of a channel access apparatus for PRACH transmission according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a communication system 800 according to an embodiment of the present application.
  • GSM Global System for Mobile
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunications System
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with the terminal device 120 (or referred to as a communication terminal or terminal).
  • the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located within the coverage area.
  • the network device 110 may be a base station (BTS, Base Transceiver Station) in a GSM system or a CDMA system, or a base station (NB, NodeB) in a WCDMA system, or an evolved base station in an LTE system.
  • BTS Base Transceiver Station
  • NB NodeB
  • the network device may be a mobile switching center, relay station, access point, vehicle equipment, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in public land mobile networks (PLMN, Public Mobile Land Network) that will evolve in the future.
  • PLMN Public Mobile Land Network
  • the communication system 100 further includes at least one terminal device 120 located within a coverage area of the network device 110.
  • terminal equipment used herein includes, but is not limited to, connection via wired lines, such as public switched telephone networks (PSTN, Public Switched Telephone Networks), digital subscriber lines (DSL, Digital Subscriber Line), digital cables, direct cable connections ; And / or another data connection / network; and / or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN, Wireless Local Area Network), digital television networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and / or another terminal device configured to receive / transmit communication signals; and / or Internet of Things (IoT) equipment.
  • PSTN public switched telephone networks
  • DSL Digital Subscriber Line
  • WLAN wireless local area network
  • Digital television networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter
  • IoT Internet of Things
  • a terminal device configured to communicate through a wireless interface may be referred to as a “wireless communication terminal”, a “wireless terminal”, or a “mobile terminal”.
  • mobile terminals include, but are not limited to, satellite or cellular phones; personal communication system (PCS, Personal Communications Systems) terminals that can combine cellular radiotelephones with data processing, facsimile, and data communications capabilities; can include radiotelephones, pagers, Internet / internal PDA with network access, web browser, notepad, calendar, and / or Global Positioning System (GPS) receiver; and conventional laptop and / or palm-type receivers or others including radiotelephone transceivers Electronic device.
  • PCS Personal Communications System
  • GPS Global Positioning System
  • a terminal device can refer to an access terminal, user equipment (UE, User Equipment), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or User device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Processing (PDA), and wireless communication.
  • terminal devices 120 may perform terminal direct connection (D2D, Device to Device) communication.
  • D2D Terminal Direct connection
  • the 5G system or 5G network may also be referred to as an NR system or an NR network.
  • the technical solution of the embodiment of the present application can be applied to the unlicensed spectrum or the licensed spectrum, which is not limited in the embodiments of the present application.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like in this embodiment of the present application is not limited thereto.
  • network entities such as a network controller, a mobility management entity, and the like in this embodiment of the present application is not limited thereto.
  • the device having a communication function in the network / system in the embodiments of the present application may be referred to as a communication device.
  • the communication device may include a network device 110 and a terminal device 120 having a communication function, and the network device 110 and the terminal device 120 may be specific devices described above, and 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 mobile management entity, and the like, which is not limited in the embodiments of the present application.
  • FIG. 2 is a schematic flowchart of a channel access method for PRACH transmission according to an embodiment of the present application. As shown in FIG. 2, the following specific implementation manners are included.
  • the terminal device determines a target channel access method, and the target channel access method is a channel access method used by the terminal device to transmit a Physical Random Access Channel (PRACH) on an unlicensed carrier.
  • PRACH Physical Random Access Channel
  • the terminal device determines whether the target time domain resource is available according to the target channel access mode, wherein the target time domain resource is a time domain resource used by the terminal device to send a PRACH.
  • the uplink channel access method may include a first type (type1) channel access method and a second type (type2) channel access method.
  • the channel access method of Type 1 is channel detection based on the contention window.
  • the channel access method of type 1 includes at least two channel access priorities, and the terminal device can perform channel detection according to channel access parameters corresponding to different priorities.
  • the higher the channel access priority the shorter the channel access time under normal circumstances, but in order to ensure the fairness of spectrum utilization on the unlicensed spectrum, the channel occupation time is also shorter.
  • the lower the channel access priority is, the longer the channel access time is, but in order to ensure the fairness of spectrum utilization on the unlicensed spectrum, the channel occupation time is also longer.
  • the channel access parameters corresponding to different channel access priorities may be as follows:
  • T ulmcot, p 6ms
  • the minimum duration of a gap is 100 ⁇ s
  • the minimum duration of a gap shall be 100 ⁇ s.
  • the maximum duration before including any such gap shall be 6 ms).
  • the specific steps of the terminal device performing channel detection according to the channel access parameter may include:
  • N init N init , where N init is a random number uniformly distributed between 0 and CWp;
  • T sl length is 9 us, that is, CCA time slot length is 9 us). If the CCA time slot is idle, end the channel access. Process, otherwise, execute 4);
  • the initial value of CWp is CWmin, p, and according to specific conditions (such as transmission failure), the CWp can be adjusted within the range of CWmin, p and CWmax, p.
  • the type 2 channel access method is based on single-slot channel detection.
  • the type 2 channel access process is: before the transmission starts, the terminal device performs a 25us CCA slot detection on the unlicensed spectrum, that is, a 25us single slot channel detection. If the channel is idle, it can The channel access is considered successful. If the channel is occupied, the channel access is considered failed.
  • the terminal device may determine the target channel access mode according to at least one of the following modes.
  • the terminal device determines the target channel access method according to the standard specification, that is, the target channel access method used by the terminal device to transmit PRACH can be directly specified in the standard specification.
  • the target channel access method may include a first-type channel access method with the highest priority, a second-type channel access method, a first-type channel access method with the highest directivity, and a directional first-channel method. At least one of the two types of channel access methods and no channel detection.
  • the directional channel access method may refer to channel detection performed in a specific direction.
  • the directional second-type channel access method may be: before the transmission starts, the terminal device performs a 25us CCA slot detection on a specific direction of the unlicensed spectrum, that is, a 25us single-slot channel detection, If the channel is idle, the channel access is considered successful, and if the channel is occupied, the channel access is considered failed.
  • a non-directional channel access method refers to an omnidirectional channel access method.
  • not performing channel detection means that the terminal device does not need to perform channel detection, that is, it can send a PRACH at the target time domain resource.
  • the terminal device determines the target channel access mode according to the network device configuration.
  • the network device may configure some a priori information for the terminal device, such as which time domain resources to send the PRACH, etc.
  • the target channel access mode may also be configured for the terminal.
  • the target channel access method may include a first-type channel access method with the highest priority, a second-type channel access method, a first-type channel access method with the highest directivity, and a directional first-channel method. At least one of the two types of channel access methods and no channel detection.
  • the terminal device determines a target channel access mode according to a target time domain resource.
  • the terminal device may determine the target channel access mode according to whether the target time domain resource belongs to a shared channel occupation time (SCOT, Shared Channel Occupancy Time).
  • SCT shared Channel occupation time
  • the target channel access method may include a channel access method of the first type with the highest priority, a channel access method of the second type, a channel access method of the first type with the highest directivity, and a channel type of the second. At least one of a channel access method and no channel detection.
  • the second type channel access method may be used as the target channel access method; otherwise, the first type channel access method with the highest priority may be used as the target channel access method. .
  • channel detection may not be performed; otherwise, the second type channel access method may be used as the target channel access method.
  • the terminal device determines that the target time domain resource belongs to the SCOT shared by the AUL, then it does not need to perform channel detection; if it determines that the target time domain resource belongs to the SCOT shared by the network device to the terminal device, then the second type of channel access method may be used as the target channel Access method; otherwise, the first type channel access method with the highest priority can be used as the target channel access method.
  • the SCOT may be a COT shared by a network device to a terminal device, or may be a COT shared by the terminal device's spontaneous uplink transmission to a target time domain resource.
  • the SCOT shared by the network device to the terminal device may refer to a resource in a downlink transmission opportunity where the target time domain resource used by the terminal device to transmit PRACH belongs to the network device.
  • the SCOT shared by the terminal device for spontaneous uplink transmission to the target time domain resource may refer to a resource in a spontaneous uplink transmission opportunity of the terminal device for the target time domain resource used to transmit PRACH.
  • the terminal device determines the target channel access method according to the service priority that triggers the PRACH transmission.
  • the target channel access method is one of at least two candidate channel access methods, at least two candidate channel access methods, and trigger PRACH transmission. Corresponding business priorities.
  • the service that triggers PRACH transmission may include at least one of the following:
  • Radio resource control connection re-establishment process (RRC, Connection, Re-establishment, procedure);
  • the downlink data or uplink data arrives during the RRC connection (DL or UL data during RRC_CONNECTED when UL UL synchronisation status is "non-synchronised”);
  • At least two candidate channel access modes correspond to service priorities that trigger PRACH transmission.
  • the correspondence between the at least two candidate channel access modes and the service priority that triggers PRACH transmission may be prescribed by a standard specification or configured by a network device.
  • each service may correspond to a channel access priority.
  • the channel access priority corresponding to the handover service is the highest.
  • the correspondence may be one-to-one correspondence, or may not be one-to-one correspondence.
  • the target channel access method is the channel access method with the highest priority among at least two candidate channel access methods (for example, the second type channel access method).
  • the target channel access method is the first type channel access method with the highest priority.
  • the network device may configure the foregoing correspondence through radio resource control (RRC, Radio Resource Control) signaling and the like.
  • RRC Radio Resource Control
  • the at least two candidate channel access methods may include a first-type channel access method with the highest priority, a second-type channel access method, a first-type channel access method with the highest directivity, and a directional channel-access method. At least one of the second type of channel access mode and no channel detection.
  • the terminal device can determine whether the target time domain resource is available according to the target channel access mode, where the target time domain resource is the time domain resource used by the terminal device to send a PRACH. .
  • the target time domain resources can be directly considered as available. Otherwise, the terminal device can detect the channel according to the target channel access method to determine whether the target time domain resource is available, that is, perform channel detection on the unlicensed carrier. If it is available, it can send a PRACH on the target time domain resource. If it is not available, it is not Send a PRACH on the target time domain resource.
  • the random access process corresponding to PRACH may be a contention-based random access process, that is, a CB-RACH process, or a non-contention-based random access process, that is, a CF-RACH process.
  • the manner in which the terminal device determines the target channel access manner described in the first manner to the fourth manner may be applicable to both a contention-based random access process and a non-contention-based random access process.
  • the terminal device may also determine a target channel access mode according to a random access process corresponding to PRACH, where the random access process includes a contention-based random access process and a non-contention-based random access process.
  • the terminal device may determine the target channel access mode according to the first instruction information, and the first instruction information is sent by the network device through physical layer signaling. For terminal equipment.
  • the first indication information may directly indicate the target channel access method, or the service priority, etc., so that the terminal device determines the target channel access method according to the service priority, etc., and may also indicate the channel access priority, etc., so that the terminal device
  • the channel access parameters corresponding to the target channel access mode are determined according to the channel access priority and the like.
  • the target channel access mode indicated by the first indication information may be determined by the network device according to the service priority that triggers the PRACH transmission, or the target channel access mode indicated by the first indication information is whether the network device is based on whether the target time domain resource is Determined by SCOT.
  • the first indication information may also be used to determine at least one of the following information: the start position of PRACH, the end position of PRACH, the transmission beam identifier corresponding to PRACH, and the Receive beam identification, etc.
  • the transmit beam identifier corresponding to PRACH and / or the receive beam identifier corresponding to PRACH are determined according to a beam direction of a synchronization signal block (SSB, Synchronization Signal Block) associated with a PRACH resource (eg, a target time domain resource).
  • a synchronization signal block (SSB, Synchronization Signal Block) associated with a PRACH resource (eg, a target time domain resource).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • PBCH Physical Broadcast Channel
  • the terminal device may determine the target channel access method as follows: determine the target channel access method according to the standard specification, or determine the target channel according to the network device configuration The access mode, or the target channel access mode is determined according to the target time domain resources.
  • the terminal device determining the target channel access method according to the target time domain resource may include: the terminal device determining the target channel access method according to whether the target time domain resource belongs to the SCOT.
  • the target channel access method may include the first type channel access method with the highest priority, the second type channel access method, the first type channel access method with the highest directivity, and the second direction channel access. At least one of an access method and no channel detection.
  • the terminal device may also determine the target channel access method in the following manner: the terminal device determines the target channel access method according to the service priority that triggers PRACH transmission, wherein the target channel access method is at least two candidate channel access methods.
  • the target channel access method is at least two candidate channel access methods.
  • One type, at least two candidate channel access modes correspond to service priorities that trigger PRACH transmission.
  • the correspondence between at least two candidate channel access modes and the service priority that triggers PRACH transmission is prescribed by the standard specification, or is configured by a network device.
  • At least two candidate channel access methods include the first type channel access method with the highest priority, the second type channel access method, the first type channel access method with the highest priority, and the second type of directivity. At least one of a channel access method and no channel detection.
  • the network device may send configuration information to the terminal device, so that the terminal device determines a target channel access method according to the configuration information.
  • the target channel access method is a channel access method used by the terminal device to transmit PRACH on the unlicensed carrier.
  • the configuration information may be a target channel access method, and may include a channel access method of the first type with the highest priority, a channel access method of the second type, a channel access method of the first type with the highest directivity, and a direction. At least one of the second channel access method of the nature and no channel detection is performed.
  • the configuration information may be a correspondence between at least two candidate channel access modes and a service priority that triggers PRACH transmission, so that the terminal device determines a target channel access mode according to the service priority that triggers PRACH transmission, where the target channel access
  • the method is one of at least two candidate channel access methods.
  • the correspondence may be one-to-one correspondence, or may not be one-to-one correspondence.
  • the at least two candidate channel access methods may include a first-type channel access method with the highest priority, a second-type channel access method, a first-type channel access method with the highest directivity, and a directional channel-access method. At least one of the second type of channel access mode and no channel detection.
  • the random access process corresponding to PRACH may be a contention-based random access process, that is, a CB-RACH process, or a non-contention-based random access process, that is, a CF-RACH process.
  • the operation of the above network equipment can be applied to both a contention-based random access process and a non-contention-based random access process.
  • the network device may also send the first instruction information to the terminal device through physical layer signaling, so that the terminal device determines the target channel according to the first instruction information.
  • Access mode is a channel access mode for terminal equipment to transmit PRACH on the unlicensed carrier.
  • the first indication information may directly indicate a target channel access mode, or may indicate a service priority, so that the terminal device determines the target channel access mode according to the service priority and the like.
  • the target channel access mode indicated by the first indication information may be determined by the network device according to the service priority that triggers the PRACH transmission, or the target channel access mode indicated by the first indication information is whether the network device is based on whether the target time domain resource is Determined by SCOT.
  • the network device may determine the target channel access method according to the service priority that triggers the PRACH transmission.
  • the target channel access method is one of at least two candidate channel access methods, at least two candidate channel access methods, and trigger PRACH. Correspondence of sent service priorities.
  • the at least two candidate channel access methods may include a channel access method of the first type having the highest priority, a channel access method of the second type, a channel access method of the first type having the highest priority, and a channel directing method of the second. At least one of a type channel access method and no channel detection.
  • the corresponding channel access method may be the second type channel access method.
  • the network-side device may also determine the target channel access mode according to whether the target time domain resource belongs to SCOT.
  • the target channel access method may include the first type channel access method with the highest priority, the second type channel access method, the first type channel access method with the highest directivity, and the second direction channel access. At least one of an access method and no channel detection.
  • the second type channel access method may be used as the target channel access method; otherwise, the first type channel access method with the highest priority may be used as the target channel access. the way.
  • the first indication information may also be used to determine at least one of the following information: the start position of PRACH, the end position of PRACH, the transmission beam identifier corresponding to PRACH, and the Receive beam identification, etc.
  • PRACH can be correctly sent according to the corresponding channel access mode, thereby improving system performance and the like.
  • FIG. 3 is a first schematic block diagram of a channel access apparatus for PRACH transmission according to an embodiment of the present application. As shown in FIG. 3, the method includes a first determining unit 301 and a second determining unit 302.
  • the first determining unit 301 is configured to determine a target channel access mode, where the target channel access mode is a channel access mode used by a terminal device to transmit a PRACH on an unlicensed carrier.
  • a second determining unit 302 is configured to determine whether a target time domain resource is available according to a target channel access mode, and the target time domain resource is a time domain resource used by the terminal device to send a PRACH.
  • the first determining unit 301 may determine a target channel access method according to a standard specification, or determine a target channel access method according to a network device configuration, or determine a target channel access method according to a target time domain resource.
  • the first determining unit 301 may determine the target channel access method according to whether the target time domain resource belongs to SCOT.
  • the target channel access method may include the first type channel access method with the highest priority, the second type channel access method, the first type channel access method with the highest directivity, and the second direction channel access. At least one of an access method and no channel detection.
  • the first determining unit 301 may further determine a target channel access method according to a service priority that triggers PRACH transmission, where the target channel access method is one of at least two candidate channel access methods and at least two candidate channels.
  • the access method corresponds to the service priority that triggers PRACH transmission.
  • the correspondence between at least two candidate channel access modes and the service priority that triggers PRACH transmission is specified by the standard specification, or the correspondence is configured by the network device.
  • At least two candidate channel access methods include the first type channel access method with the highest priority, the second type channel access method, the first type channel access method with the highest priority, and the second type of directivity. At least one of a channel access method and no channel detection.
  • the random access process corresponding to PRACH is a contention-based random access process, or the random access process corresponding to PRACH is a non-contention-based random access process.
  • the first determining unit 301 may further determine a target channel access mode according to a random access process corresponding to the PRACH.
  • the random access process includes a contention-based random access process and a non-contention-based random access process.
  • the first determining unit 301 may determine the target channel access mode according to the first instruction information, and the first instruction information is the information transmitted by the network device through the physical layer. Order sent to the terminal device.
  • the target channel access method indicated by the first instruction information is determined by the network device according to the service priority that triggers the PRACH transmission, or the target channel access method indicated by the first instruction information is determined by the network device according to whether the target time domain resource belongs to SCOT. of.
  • the first indication information may also be used to determine at least one of the following information: a start position of PRACH, an end position of PRACH, a transmission beam identifier corresponding to PRACH, a reception beam identifier corresponding to PRACH, and the like.
  • the first determining unit 301 may determine the target channel access method in the following manner: determine the target channel access method according to a standard specification, or according to the network device configuration Determine the target channel access method, or determine the target channel access method according to the target time domain resource.
  • determining the target channel access method according to the target time domain resource may include: determining the target channel access method according to whether the target time domain resource belongs to the SCOT.
  • the target channel access method may include the first type channel access method with the highest priority, the second type channel access method, the first type channel access method with the highest directivity, and the second direction channel access. At least one of an access method and no channel detection.
  • the first determining unit 301 may also determine the target channel access method in the following manner: determine the target channel access method according to the service priority that triggers PRACH transmission, where the target channel access method is at least two candidate channel access methods In one of them, at least two candidate channel access modes correspond to a service priority that triggers PRACH transmission.
  • the correspondence between at least two candidate channel access modes and the service priority that triggers PRACH transmission is prescribed by the standard specification, or is configured by a network device.
  • At least two candidate channel access methods include the first type channel access method with the highest priority, the second type channel access method, the first type channel access method with the highest priority, and the second type of directivity. At least one of a channel access method and no channel detection.
  • FIG. 4 is a second schematic block diagram of a channel access apparatus for PRACH transmission according to an embodiment of the present application. As shown in FIG. 4, it includes: a first sending unit 401.
  • a first sending unit 401 is configured to send configuration information to a terminal device, so that the terminal device determines a target channel access method according to the configuration information.
  • the target channel access method is a channel access method used by the terminal device to transmit PRACH on an unlicensed carrier. .
  • the configuration information may be a target channel access mode.
  • the configuration information may be a correspondence between at least two candidate channel access modes and a service priority that triggers PRACH transmission, so that the terminal device determines a target channel access mode according to the service priority that triggers PRACH transmission.
  • the method is one of at least two candidate channel access methods.
  • FIG. 5 is a third schematic block diagram of a channel access apparatus for PRACH transmission according to an embodiment of the present application. As shown in FIG. 5, it includes a second sending unit 501.
  • the second sending unit 501 is configured to send the first instruction information to the terminal device through physical layer signaling when the random access procedure corresponding to the PRACH is a non-contention-based random access procedure, so that the terminal device determines according to the first instruction information.
  • Target channel access method is a channel access method used by a terminal device to transmit PRACH on an unlicensed carrier.
  • the target channel access mode indicated by the first indication information is determined according to the service priority that triggers the PRACH transmission, or the target channel access mode indicated by the first indication information is determined according to whether the target time domain resource belongs to SCOT.
  • the first indication information may also be used to determine at least one of the following information: a start position of PRACH, an end position of PRACH, a transmission beam identifier corresponding to PRACH, a reception beam identifier corresponding to PRACH, and the like.
  • FIG. 3 For specific working processes of the device embodiments shown in FIG. 3, FIG. 4, and FIG. 5, refer to related descriptions in the foregoing method embodiments, and details are not described herein again.
  • FIG. 6 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application.
  • the communication device 600 shown in FIG. 6 includes a processor 610, and the processor 610 can call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.
  • the communication device 600 may further include a memory 620.
  • the processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.
  • the memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, and specifically, may send information or data to other devices, or receive other Information or data sent by the device.
  • the processor 610 may control the transceiver 630 to communicate with other devices, and specifically, may send information or data to other devices, or receive other Information or data sent by the device.
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of antennas may be one or more.
  • the communication device 600 may specifically be a network device according to the embodiment of the present application, and the communication device 600 may implement a corresponding process implemented by the network device in each method of the embodiment of the present application. For brevity, details are not described herein again. .
  • the communication device 600 may specifically be a mobile terminal / terminal device in the embodiment of the present application, and the communication device 600 may implement the corresponding process implemented by the mobile terminal / terminal device in each method in the embodiments of the present application, for the sake of simplicity , Will not repeat them here.
  • FIG. 7 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 700 shown in FIG. 7 includes a processor 710, and the processor 710 may call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the chip 700 may further include a memory 720.
  • the processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiment of the present application.
  • the memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.
  • the chip 700 may further include an input interface 730.
  • the processor 710 may control the input interface 730 to communicate with other devices or chips. Specifically, the processor 710 may obtain information or data sent by other devices or chips.
  • the chip 700 may further include an output interface 740.
  • the processor 710 may control the output interface 740 to communicate with other devices or chips. Specifically, the processor 710 may output information or data to the other devices or chips.
  • the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the chip can be applied to the mobile terminal / terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the mobile terminal / terminal device in each method of the embodiment of the present application. For simplicity, here No longer.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-level chip, a system chip, a chip system or a system-on-chip.
  • FIG. 8 is a schematic block diagram of a communication system 800 according to an embodiment of the present application. As shown in FIG. 8, the communication system 800 includes a terminal device 810 and a network device 820.
  • the terminal device 810 may be used to implement the corresponding functions implemented by the terminal device in the foregoing method
  • the network device 820 may be used to implement the corresponding functions implemented by the network device in the foregoing method.
  • the processor in the embodiment of the present application may be an integrated circuit chip and has a signal processing capability.
  • each step of the foregoing method embodiment may be completed by using an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the aforementioned processor may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), an application specific integrated circuit (ASIC, Application Specific Integrated Circuit), an off-the-shelf programmable gate array (FPGA, Field Programmable Gate Array), or other Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • Various methods, steps, and logical block diagrams disclosed in the embodiments of the present application may be implemented or executed.
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in combination with the embodiments of the present application may be directly implemented by a hardware decoding processor, or may be performed by using a combination of hardware and software modules in the decoding processor.
  • a software module may be located in a mature storage medium such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM, Read-Only Memory), a programmable read-only memory (PROM, Programmable ROM), an erasable programmable read-only memory (EPROM, Erasable PROM), or Erase programmable read-only memory (EEPROM, Electrically EPROM) or flash memory.
  • the volatile memory may be a random access memory (RAM, Random Access Memory), which is used as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM Synchlink DRAM
  • DR RAM Direct Rambus RAM
  • An embodiment of the present application further provides a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium can be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the mobile terminal / terminal device in each method in the embodiment of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the mobile terminal / terminal device in each method in the embodiment of the present application.
  • An embodiment of the present application further provides a computer program product, including computer program instructions.
  • the computer program product can be applied to a network device in the embodiment of the present application, and the computer program instruction causes a computer to execute a corresponding process implemented by the network device in each method in the embodiment of the present application. More details.
  • the computer program product may be applied to a mobile terminal / terminal device in the embodiments of the present application, and the computer program instructions cause a computer to execute a corresponding process implemented by the mobile terminal / terminal device in each method of the embodiments of the present application, For brevity, I will not repeat them here.
  • the embodiment of the present application also provides a computer program.
  • the computer program may be applied to a network device in the embodiment of the present application.
  • the computer program When the computer program is run on a computer, the computer is caused to execute a corresponding process implemented by the network device in each method in the embodiment of the present application. , Will not repeat them here.
  • the computer program can be applied to a mobile terminal / terminal device in the embodiment of the present application, and when the computer program is run on a computer, the computer executes each method in the embodiment of the application by the mobile terminal / terminal device.
  • the corresponding processes are not repeated here for brevity.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the functions When the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application.
  • the foregoing storage medium includes various media that can store program codes, such as a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本申请公开了用于PRACH传输的信道接入方法、装置和程序，能够提升系统性能，其中方法可包括：终端设备确定目标信道接入方式，目标信道接入方式为用于终端设备在免授权载波上传输PRACH的信道接入方式；终端设备根据目标信道接入方式确定目标时域资源是否可用，其中，目标时域资源是终端设备用于发送PRACH的时域资源。

Description

用于物理随机接入信道传输的信道接入方法、装置和程序 技术领域
本申请实施例涉及无线网络技术领域，具体涉及用于物理随机接入信道传输的信道接入方法、装置和程序。
背景技术
免授权频谱是国家和地区划分的可用于无线电设备通信的频谱，该频谱通常被认为是共享频谱，即不同通信系统中的通信设备只要满足国家或地区在该频谱上设置的法规要求，就可以使用该频谱，不需要向政府申请专有的频谱授权。
为了让使用免授权频谱进行无线通信的各个通信系统在该频谱上能够友好共存，通信设备需遵循“先听后说”原则，即通信设备在免授权频谱的信道上进行信号发送前，通常需要进行信道接入(即信道检测)，只有当信道检测结果为信道空闲时，该通信设备才能进行信号发送，如果通信设备在免授权频谱的信道上的信道检测结果为信道忙，该通信设备不能进行信号发送。
在将新无线(NR，New Radio)技术应用到免授权频谱上时，由于新无线-免授权(NR-U，New Radio-Unlicensed)支持独立组网(SA，Standalone)场景，需要在免授权频谱上考虑基于竞争的随机接入信道(CB-RACH，Contention Based-Random Access Channel)和基于非竞争的随机接入信道(CF-RACH，Contention Free-Random Access Channel)的发送，相应地，需要考虑为了支持CB-RACH和CF-RACH发送的信道接入方式，而针对这一问题，目前还没有一种有效的解决方式。
发明内容
本申请实施例提供了用于物理随机接入信道传输的信道接入方法、装置和程序。
第一方面，提供了一种用于物理随机接入信道传输的信道接入方法，包括：
终端设备确定目标信道接入方式，所述目标信道接入方式为用于所述终端设备在免授权载波上传输所述PRACH的信道接入方式；
所述终端设备根据所述目标信道接入方式确定目标时域资源是否可用，其中，所述目标时域资源是所述终端设备用于发送所述PRACH的时域资源。
第二方面，提供了一种用于物理随机接入信道传输的信道接入方法，包括：
网络设备向终端设备发送配置信息，以便所述终端设备根据所述配置信息确定目标信道接入方式，所述目标信道接入方式为用于所述终端设备在免授权载波上传输所述PRACH的信道接入方式。
第三方面，提供了一种用于物理随机接入信道传输的信道接入方法，包括：
当所述PRACH对应的随机接入过程为基于非竞争的随机接入过程时，网络设备通过物理层信令向终端设备发送第一指示信息，以便所述终端设备根据所述第一指示信息确定目标信道接入方式，所述目标信道接入方式为用于所述终端设备在免授权载波上传输所述PRACH的信道接入方式。
第四方面，提供了一种用于物理随机接入信道传输的信道接入装置，用于执行上述第一方面或其各实现方式中的方法。
具体地，该用于物理随机接入信道传输的信道接入装置包括用于执行上述第一方面或其各实现方式中的方法的功能模块。
第五方面，提供了一种用于物理随机接入信道传输的信道接入装置，用于执行上述第二方面或其各实现方式中的方法。
具体地，该用于物理随机接入信道传输的信道接入装置包括用于执行上述第二方面或其各实现方式中的方法的功能模块。
第六方面，提供了一种用于物理随机接入信道传输的信道接入装置，用于执行上述第三方面或其各实现方式中的方法。
具体地，该用于物理随机接入信道传输的信道接入装置包括用于执行上述第三方面或其各实现方式中的方法的功能模块。
第七方面，提供了一种通信设备，包括处理器和存储器，该存储器用于存储计算机程序，该处理器用于调用并运行该存储器中存储的计算机程序，执行上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
第八方面，提供了一种芯片，用于实现上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
具体地，该芯片包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有该芯片的设备执行如上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
第九方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序使得计算机执行上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
第十方面，提供了一种计算机程序产品，包括计算机程序指令，该计算机程序指令使得计算机执行上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
第十一方面，提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
基于上述介绍可以看出，采用本申请所述方案，终端设备可首先确定目标信道接入方式，之后，可根据目标信道接入方式确定目标时域资源是否可用，其中，目 标时域资源是终端设备用于发送PRACH的时域资源，终端设备在目标时域资源可用的情况下发送PRACH，能够保证免授权频谱使用公平性，也能够保证PRACH的传输性能。
附图说明
图1为本申请实施例提供的一种通信系统架构的示意性图。
图2为本申请实施例提供的用于PRACH传输的信道接入方法的示意性流程图。
图3为本申请实施例提供的用于PRACH传输的信道接入装置第一示意性框图。
图4为本申请实施例提供的用于PRACH传输的信道接入装置第二示意性框图。
图5为本申请实施例提供的用于PRACH传输的信道接入装置第三示意性框图。
图6为本申请实施例提供的通信设备600的示意性结构图。
图7为本申请实施例提供的芯片的示意性结构图。
图8为本申请实施例提供的通信系统800的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(GSM，Global System of Mobile communication)系统、码分多址(CDMA，Code Division Multiple Access)系统、宽带码分多址(WCDMA，Wideband Code Division Multiple Access)系统、通用分组无线业务(GPRS，General Packet Radio Service)、长期演进(LTE，Long Term Evolution)系统、LTE频分双工(FDD，Frequency Division Duplex)系统、LTE时分双工(TDD，Time Division Duplex)、通用移动通信系统(UMTS，Universal Mobile Telecommunication System)、全球互联微波接入(WiMAX，Worldwide Interoperability for Microwave Access)通信系统或5G系统等。
示例性的，本申请实施例应用的通信系统100如图1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(BTS，Base Transceiver Station)，也可以是WCDMA系统中的基站(NB，NodeB)，还可以是LTE系统中的演进型基站(eNB或eNodeB，Evolutional Node B)，或者是云无线接入网络(CRAN，Cloud Radio Access Network)中的无线控制器，或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧设备或者未 来演进的公共陆地移动网络(PLMN，Public Land Mobile Network)中的网络设备等。
该通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备120。作为在此使用的“终端设备”包括但不限于经由有线线路连接，如经由公共交换电话网络(PSTN，Public Switched Telephone Networks)、数字用户线路(DSL，Digital Subscriber Line)、数字电缆、直接电缆连接；和/或另一数据连接/网络；和/或经由无线接口，如，针对蜂窝网络、无线局域网(WLAN，Wireless Local Area Network)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器；和/或另一终端设备的被设置成接收/发送通信信号的装置；和/或物联网(IoT，Internet of Things)设备。被设置成通过无线接口通信的终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(PCS，Personal Communications System)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(GPS，Global Positioning System)接收器的PDA；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(UE，User Equipment)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(SIP，Session Initiation Protocol)电话、无线本地环路(WLL，Wireless Local Loop)站、个人数字处理(PDA，Personal Digital Assistant)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
可选地，终端设备120之间可以进行终端直连(D2D，Device to Device)通信。
可选地，5G系统或5G网络还可以称为NR系统或NR网络。
本申请实施例的技术方案可以应用于免授权频谱，也可以应用于授权频谱，本申请实施例对此并不限定。
图1示例性地示出了一个网络设备和两个终端设备，可选地，该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
可选地，该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统100为例，通信设备可包括具有通信功能的网络设备110和终端设备120，网络设备110和终端设备120可以为上文所述的具体设备，此处不再 赘述；通信设备还可包括通信系统100中的其他设备，例如网络控制器、移动管理实体等其他网络实体，本申请实施例中对此不做限定。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
图2为本申请实施例提供的用于PRACH传输的信道接入方法的示意性流程图。如图2所示，包括以下具体实现方式。
在201中，终端设备确定目标信道接入方式，所述目标信道接入方式为用于终端设备在免授权载波上传输物理随机接入信道(PRACH，Physical Random Access Channel)的信道接入方式。
在202中，终端设备根据目标信道接入方式确定目标时域资源是否可用，其中，目标时域资源为终端设备用于发送PRACH的时域资源。
应理解，上行的信道接入方式可包括第一类型(type1)信道接入方式和第二类型(type2)信道接入方式两种。
Type1的信道接入方式为基于竞争窗口的信道检测。在type1的信道接入方式中包括至少两个信道接入优先级，终端设备可根据不同优先级对应的信道接入参数进行信道检测。其中，信道接入优先级越高，通常情况下信道接入时间越短，但为了保证免授权频谱上的频谱利用公平性，信道占用时间也越短。相应地，信道接入优先级越低，通常情况下信道接入时间越长，但为了保证免授权频谱上的频谱利用公平性，信道占用时间也越长。
作为示例而非限定，不同的信道接入优先级对应的信道接入参数可如下所示：
Figure PCTCN2019088136-appb-000001
表一 不同信道接入优先级对应的信道接入参数
其中，对于P＝3,4，如果高层参数‘absenceOfAnyOtherTechnology-r14’指示为真，则T ulmcot,p＝10ms，否则，T ulmcot,p＝6ms(For p＝3,4,T ulmcot,p＝10ms if the higher layer  parameter‘absenceOfAnyOtherTechnology-r14’indicates TRUE,otherwise,T ulmcot,p＝6ms)。
另外，当T ulmcot,p＝6ms时，通过插入一个或多个间隙可以增加到8ms，一个间隙的最小持续时间为100μs，在包含任意间隙之前的最大持续时间为6ms(When T ulmcot,p＝6ms it may be increased to 8 ms by inserting one or more gaps.The minimum duration of a gap shall be 100μs.The maximum duration before including any such gap shall be 6 ms)。
在表一中，P的数字越小，信道接入优先级越高。例如，P＝1的信道接入优先级高于P＝2的信道接入优先级。
具体地，终端设备根据信道接入参数进行信道检测的具体步骤可包括：
1)设置计数器N＝N init，其中N init是0到CWp之间均匀分布的随机数；
2)如果N＞0，网络设备对计数器减1，即N＝N-1；
3)对信道做长度为T sl(T sl长度为9us，即CCA时隙长度为9us)的空闲信道评估(CCA，Clear Channel Assessment)时隙检测，如果CCA时隙空闲，则结束信道接入过程，否则，执行4)；
4)对时间长度为T d(T d＝16+m p*9(us))的信道做CCA时隙检测，检测结果要么为至少一个CCA时隙被占用，要么为所有CCA时隙均空闲；
5)如果T d时间内所有CCA时隙均空闲，则结束信道接入过程，否则，执行4)。
其中，CWp的初始值为CWmin,p，并根据特定条件(例如传输失败)，该CWp可以在CWmin,p和CWmax,p范围内调整。
Type2的信道接入方式为基于单时隙的信道检测。作为示例而非限定，type 2信道接入过程为：终端设备在传输开始前对免授权频谱进行一次长度为25us的CCA时隙检测，即进行25us单时隙信道检测，如果信道空闲，则可以认为信道接入成功，如果信道被占用，则认为信道接入失败。
应理解，通常情况下，可以认为type 2信道接入方式的优先级高于优先级最高的type 1信道接入方式(例如表一中P＝1的信道接入方式)。
在本申请实施例中，终端设备可按照以下方式中的至少一种来确定目标信道接入方式。
方式一：
终端设备根据标准规范确定目标信道接入方式，即可在标准规范中直接规定好终端设备用于传输PRACH的目标信道接入方式。
可选地，目标信道接入方式可包括优先级最高的第一类型信道接入方式、第二 类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。应理解，方向性的信道接入方式可以是指在某个特定方向上进行的信道检测。例如，方向性的第二类型信道接入方式可以为：终端设备在传输开始前对免授权频谱的某个特定方向进行一次长度为25us的CCA时隙检测，即进行25us单时隙信道检测，如果信道空闲，则可以认为信道接入成功，如果信道被占用，则认为信道接入失败。
应理解，无方向性的信道接入方式即指全向的信道接入方式。
还应理解，不做信道检测指的是终端设备不需要进行信道检测，即可以在目标时域资源发送PRACH。
方式二：
终端设备根据网络设备配置确定目标信道接入方式。
在终端设备发送PRACH之前，网络设备可先为终端设备配置一些先验信息，比如在哪些时域资源上发送PRACH等，此外，还可为终端配置目标信道接入方式。
可选地，目标信道接入方式可包括优先级最高的第一类型信道接入方式、第二类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。
方式三：
终端设备根据目标时域资源确定目标信道接入方式。
可选地，终端设备可根据目标时域资源是否属于共享信道占用时间(SCOT，Shared Channel Occupancy Time)来确定目标信道接入方式。
其中，目标信道接入方式可包括优先级最高的第一类型信道接入方式、第二类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。
例如，终端设备确定目标时域资源属于SCOT，那么可将第二类型信道接入方式作为目标信道接入方式，否则，可将优先级最高的第一类型信道接入方式作为目标信道接入方式。又例如，终端设备确定目标时域资源属于SCOT，那么可不做信道检测，否则，可将第二类型信道接入方式作为目标信道接入方式。
又例如，终端设备确定目标时域资源属于AUL共享的SCOT，那么可不做信道检测；确定目标时域资源属于网络设备共享给终端设备的SCOT，那么可将第二类型信道接入方式作为目标信道接入方式；否则，可将优先级最高的第一类型信道接入方式作为目标信道接入方式。
可选地，SCOT可以是网络设备共享给终端设备的COT，也可以是该终端设备的自发上行传输共享给目标时域资源的COT。
可选地，网络设备共享给终端设备的SCOT可以指终端设备用于传输PRACH 的目标时域资源属于网络设备的一次下行传输机会中的资源。
可选地，终端设备的自发上行传输共享给目标时域资源的SCOT可以指终端设备用于传输PRACH的目标时域资源属于该终端设备的一次自发上行传输机会中的资源。
方式四：
终端设备根据触发PRACH发送的业务优先级确定目标信道接入方式，其中，目标信道接入方式为至少两种候选信道接入方式中的一种，至少两种候选信道接入方式和触发PRACH发送的业务优先级对应。
触发PRACH发送的业务可包括以下至少一种：
终端设备的初始接入(Initial access from RRC_IDLE)；
无线资源控制连接重建过程(RRC Connection Re-establishment procedure)；
当上行链路同步状态为“非同步”时，下行数据或上行数据在RRC连接期间到达(DL or UL data arrival during RRC_CONNECTED when UL synchronisation status is"non-synchronised")；
从RRC非活跃状态过渡(Transition from RRC_INACTIVE)；
请求其它系统信息(Request for Other SI)；
切换(Handover)；
波束故障恢复(Beam failure recovery)。
至少两种候选信道接入方式和触发PRACH发送的业务优先级对应。另外，至少两种候选信道接入方式和触发PRACH发送的业务优先级的对应关系可以是标准规范规定的，或者，是网络设备配置的。
可选地，每种业务可对应一种信道接入优先级。
可选地，切换业务对应的信道接入优先级最高。所述对应可以是一一对应的，也可以不是一一对应的。例如，当触发PRACH发送的业务是切换时，目标信道接入方式为至少两种候选信道接入方式中优先级最高的信道接入方式(例如，第二类型信道接入方式)。又例如，当触发PRACH发送的业务不是切换(即除了切换外的其他业务)时，目标信道接入方式为优先级最高的第一类型信道接入方式。
网络设备可通过无线资源控制(RRC，Radio Resource Control)信令等来配置上述对应关系。
其中，至少两种候选信道接入方式可包括优先级最高的第一类型信道接入方式、第二类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。
无论通过哪种方式，在确定出目标信道接入方式后，终端设备可根据目标信道接入方式确定目标时域资源是否可用，其中，目标时域资源为终端设备用于发送 PRACH的时域资源。
如果目标信道接入方式为不做信道检测，那么可直接认为目标时域资源可用。否则，终端设备可根据目标信道接入方式检测信道确定目标时域资源是否可用，即对免授权载波进行信道检测，如果可用，则可在目标时域资源上发送PRACH，如果不可用，则不在目标时域资源上发送PRACH。
本实施例中，PRACH对应的随机接入过程可为基于竞争的随机接入过程即CB-RACH过程，也可为基于非竞争的随机接入过程即CF-RACH过程。
上述方式一～方式四中所述的终端设备确定目标信道接入方式的方式可同时适用于基于竞争的随机接入过程和基于非竞争的随机接入过程。
另外，终端设备还可根据PRACH对应的随机接入过程来确定目标信道接入方式，其中，随机接入过程包括基于竞争的随机接入过程和基于非竞争的随机接入过程。
其中，当PRACH对应的随机接入过程为基于非竞争的随机接入过程时，终端设备可根据第一指示信息来确定目标信道接入方式，第一指示信息为网络设备通过物理层信令发送给终端设备的。
第一指示信息中可以直接指示目标信道接入方式，也可以指示业务优先级等，以便终端设备根据业务优先级等确定目标信道接入方式，还可以指示信道接入优先级等，以便终端设备根据信道接入优先级等确定目标信道接入方式对应的信道接入参数。
另外，第一指示信息指示的目标信道接入方式可以是网络设备根据触发PRACH发送的业务优先级确定的，或者，第一指示信息指示的目标信道接入方式是网络设备根据目标时域资源是否属于SCOT确定的。
第一指示信息除了可用于指示目标信道接入方式等之外，还可用于确定以下信息中的至少一种：PRACH的起始位置、PRACH的结束位置、PRACH对应的发送波束标识、PRACH对应的接收波束标识等。
可选地，PRACH对应的发送波束标识和/或PRACH对应的接收波束标识是根据与PRACH资源(例如目标时域资源)关联的同步信号块(SSB，Synchronization Signal Block)的波束方向确定的。其中，主同步信号(PSS，Primary Synchronization Signal)、辅同步信号(SSS，Secondary Synchronization Signal)和物理广播信道(PBCH，Physical Broadcast Channel)共同构成一个SSB。当PRACH对应的随机接入过程为基于竞争的随机接入过程时，终端设备可按照以下方式确定目标信道接入方式：根据标准规范确定目标信道接入方式，或，根据网络设备配置确定目标信道接入方式，或，根据目标时域资源确定目标信道接入方式。
其中，终端设备根据目标时域资源确定目标信道接入方式可包括：终端设备根 据目标时域资源是否属于SCOT确定目标信道接入方式。
目标信道接入方式可包括优先级最高的第一类型信道接入方式、第二类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。
另外，终端设备还可按照以下方式确定目标信道接入方式：终端设备根据触发PRACH发送的业务优先级确定目标信道接入方式，其中，目标信道接入方式为至少两种候选信道接入方式中的一种，至少两种候选信道接入方式和触发PRACH发送的业务优先级对应。
至少两种候选信道接入方式和触发PRACH发送的业务优先级的对应关系是标准规范规定的，或者，是网络设备配置的。
至少两种候选信道接入方式包括优先级最高的第一类型信道接入方式、第二类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。
以上主要从终端设备一侧对本申请所述方案进行说明，以下从网络设备一侧进行进一步说明。
网络设备可向终端设备发送配置信息，以便终端设备根据配置信息确定目标信道接入方式，目标信道接入方式为用于终端设备在免授权载波上传输PRACH的信道接入方式。
其中，配置信息可为目标信道接入方式，可包括优先级最高的第一类型信道接入方式、第二类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。
或者，配置信息可为至少两种候选信道接入方式和触发PRACH发送的业务优先级的对应关系，以便终端设备根据触发PRACH发送的业务优先级确定目标信道接入方式，其中，目标信道接入方式为至少两种候选信道接入方式中的一种。所述对应可以是一一对应的，也可以不是一一对应的。
其中，至少两种候选信道接入方式可包括优先级最高的第一类型信道接入方式、第二类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。
PRACH对应的随机接入过程可为基于竞争的随机接入过程即CB-RACH过程，也可为基于非竞争的随机接入过程即CF-RACH过程。上述网络设备的操作可同时适用于基于竞争的随机接入过程和基于非竞争的随机接入过程。
另外，当PRACH对应的随机接入过程为基于非竞争的随机接入过程时，网络设备还可通过物理层信令向终端设备发送第一指示信息，以便终端设备根据第一指示信息确定目标信道接入方式，目标信道接入方式为用于终端设备在免授权载波上 传输PRACH的信道接入方式。
第一指示信息可以直接指示目标信道接入方式，也可以指示业务优先级等，以便终端设备根据业务优先级等确定目标信道接入方式。
另外，第一指示信息指示的目标信道接入方式可以是网络设备根据触发PRACH发送的业务优先级确定的，或，第一指示信息指示的目标信道接入方式是网络设备根据目标时域资源是否属于SCOT确定的。
网络设备可根据触发PRACH发送的业务优先级确定目标信道接入方式，其中，目标信道接入方式为至少两种候选信道接入方式中的一种，至少两种候选信道接入方式和触发PRACH发送的业务优先级对应。
至少两种候选信道接入方式可包括优先级最高的第一类型信道接入方式、第二类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。
比如，对于优先级最高的业务触发的PRACH发送，其对应的信道接入方式可为第二类型信道接入方式。
网络侧设备也可根据目标时域资源是否属于SCOT来确定目标信道接入方式。
目标信道接入方式可包括优先级最高的第一类型信道接入方式、第二类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。
比如，网络设备确定目标时域资源属于SCOT，那么则可将第二类型信道接入方式作为目标信道接入方式，否则，可将优先级最高的第一类型信道接入方式作为目标信道接入方式。
第一指示信息除了可用于指示目标信道接入方式等之外，还可用于确定以下信息中的至少一种：PRACH的起始位置、PRACH的结束位置、PRACH对应的发送波束标识、PRACH对应的接收波束标识等。
在上述各方法实施例中，对各实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其它实施例中的相关描述。
总之，采用上述各方法实施例所述方案，可以使得PRACH能够按照对应的信道接入方式正确发送，从而提升了系统性能等。
以上是关于方法实施例的介绍，以下通过装置实施例，对本申请所述方案进行进一步说明。
图3为本申请实施例提供的用于PRACH传输的信道接入装置第一示意性框图。如图3所示，包括：第一确定单元301以及第二确定单元302。
第一确定单元301，用于确定目标信道接入方式，目标信道接入方式为用于终端设备在免授权载波上传输PRACH的信道接入方式。
第二确定单元302，用于根据目标信道接入方式确定目标时域资源是否可用，目标时域资源是终端设备用于发送PRACH的时域资源。
其中，第一确定单元301可根据标准规范确定目标信道接入方式，或，根据网络设备配置确定目标信道接入方式，或，根据目标时域资源确定目标信道接入方式。
在根据目标时域资源确定目标信道接入方式时，第一确定单元301可根据目标时域资源是否属于SCOT来确定目标信道接入方式。
目标信道接入方式可包括优先级最高的第一类型信道接入方式、第二类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。
另外，第一确定单元301还可根据触发PRACH发送的业务优先级确定目标信道接入方式，其中，目标信道接入方式为至少两种候选信道接入方式中的一种，至少两种候选信道接入方式和触发PRACH发送的业务优先级对应。
至少两种候选信道接入方式和触发PRACH发送的业务优先级的对应关系是标准规范规定的，或者，对应关系是网络设备配置的。
至少两种候选信道接入方式包括优先级最高的第一类型信道接入方式、第二类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。
PRACH对应的随机接入过程为基于竞争的随机接入过程，或，PRACH对应的随机接入过程为基于非竞争的随机接入过程。
第一确定单元301还可根据PRACH对应的随机接入过程确定目标信道接入方式，随机接入过程包括基于竞争的随机接入过程和基于非竞争的随机接入过程。
其中，当PRACH对应的随机接入过程为基于非竞争的随机接入过程时，第一确定单元301可根据第一指示信息确定目标信道接入方式，第一指示信息是网络设备通过物理层信令发送给终端设备的。
第一指示信息指示的目标信道接入方式是网络设备根据触发PRACH发送的业务优先级确定的，或，第一指示信息指示的目标信道接入方式是网络设备根据目标时域资源是否属于SCOT确定的。
第一指示信息还可用于确定以下信息中的至少一种：PRACH的起始位置、PRACH的结束位置、PRACH对应的发送波束标识、PRACH对应的接收波束标识等。
当PRACH对应的随机接入过程为基于竞争的随机接入过程时，第一确定单元301可按照以下方式确定目标信道接入方式：根据标准规范确定目标信道接入方式，或，根据网络设备配置确定目标信道接入方式，或，根据目标时域资源确定目标信道接入方式。
其中，根据目标时域资源确定目标信道接入方式可包括：根据目标时域资源是否属于SCOT确定目标信道接入方式。
目标信道接入方式可包括优先级最高的第一类型信道接入方式、第二类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。
另外，第一确定单元301还可按照以下方式确定目标信道接入方式：根据触发PRACH发送的业务优先级确定目标信道接入方式，其中，目标信道接入方式为至少两种候选信道接入方式中的一种，至少两种候选信道接入方式和触发PRACH发送的业务优先级对应。
至少两种候选信道接入方式和触发PRACH发送的业务优先级的对应关系是标准规范规定的，或者，是网络设备配置的。
至少两种候选信道接入方式包括优先级最高的第一类型信道接入方式、第二类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。
图4为本申请实施例提供的用于PRACH传输的信道接入装置第二示意性框图。如图4所示，包括：第一发送单元401。
第一发送单元401，用于向终端设备发送配置信息，以便终端设备根据配置信息确定目标信道接入方式，目标信道接入方式为用于终端设备在免授权载波上传输PRACH的信道接入方式。
其中，配置信息可为目标信道接入方式。
或，配置信息可为至少两种候选信道接入方式和触发PRACH发送的业务优先级的对应关系，以便终端设备根据触发PRACH发送的业务优先级确定目标信道接入方式，其中，目标信道接入方式为至少两种候选信道接入方式中的一种。
图5为本申请实施例提供的用于PRACH传输的信道接入装置第三示意性框图。如图5所示，包括：第二发送单元501。
第二发送单元501，用于当PRACH对应的随机接入过程为基于非竞争的随机接入过程时，通过物理层信令向终端设备发送第一指示信息，以便终端设备根据第一指示信息确定目标信道接入方式，目标信道接入方式为用于终端设备在免授权载波上传输PRACH的信道接入方式。
第一指示信息指示的目标信道接入方式是根据触发PRACH发送的业务优先级确定的，或，第一指示信息指示的目标信道接入方式是根据目标时域资源是否属于SCOT确定的。
另外，第一指示信息还可用于确定以下信息中的至少一种：PRACH的起始位置、PRACH的结束位置、PRACH对应的发送波束标识、PRACH对应的接收波束标识 等。
图3、图4和图5所示装置实施例的具体工作流程请参照前述方法实施例中的相关说明，不再赘述。
图6为本申请实施例提供的通信设备600的示意性结构图。图6所示的通信设备600包括处理器610，处理器610可以从存储器620中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图6所示，通信设备600还可以包括存储器620。其中，处理器610可以从存储器620中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器620可以是独立于处理器610的一个单独的器件，也可以集成在处理器610中。
可选地，如图6所示，通信设备600还可以包括收发器630，处理器610可以控制该收发器630与其他设备进行通信，具体地，可以向其他设备发送信息或数据，或接收其他设备发送的信息或数据。
其中，收发器630可以包括发射机和接收机。收发器630还可以进一步包括天线，天线的数量可以为一个或多个。
可选地，该通信设备600具体可为本申请实施例的网络设备，并且该通信设备600可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该通信设备600具体可为本申请实施例的移动终端/终端设备，并且该通信设备600可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
图7为本申请实施例提供的芯片的示意性结构图。图7所示的芯片700包括处理器710，处理器710可以从存储器中调用并运行计算机程序，以实现本申请实施例中的方法。
可选地，如图7所示，芯片700还可以包括存储器720。其中，处理器710可以从存储器720中调用并运行计算机程序，以实现本申请实施例中的方法。
其中，存储器720可以是独立于处理器710的一个单独的器件，也可以集成在处理器710中。
可选地，该芯片700还可以包括输入接口730。其中，处理器710可以控制该输入接口730与其他设备或芯片进行通信，具体地，可以获取其他设备或芯片发送的信息或数据。
可选地，该芯片700还可以包括输出接口740。其中，处理器710可以控制该输出接口740与其他设备或芯片进行通信，具体地，可以向其他设备或芯片输出信息或数据。
可选地，该芯片可应用于本申请实施例中的网络设备，并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该芯片可应用于本申请实施例中的移动终端/终端设备，并且该芯片可以实现本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
图8为本申请实施例提供的通信系统800的示意性框图。如图8所示，该通信系统800包括终端设备810和网络设备820。
其中，该终端设备810可以用于实现上述方法中由终端设备实现的相应的功能，以及该网络设备820可以用于实现上述方法中由网络设备实现的相应的功能，为了简洁，在此不再赘述。
应理解，本申请实施例的处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(DSP，Digital Signal Processor)、专用集成电路(ASIC，Application Specific Integrated Circuit)、现成可编程门阵列(FPGA，Field Programmable Gate Array)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(ROM，Read-Only Memory)、可编程只读存储器(PROM，Programmable ROM)、可擦除可编程只读存储器(EPROM，Erasable PROM)、电可擦除可编程只读存储器(EEPROM，Electrically EPROM)或闪存。易失性存储器可以是随机存取存储器(RAM，Random Access Memory)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(SRAM，Static RAM)、动态随机存取存储器(DRAM，Dynamic RAM)、同步动态随机存取存储器(SDRAM，Synchronous DRAM)、双倍数据速率同步动态随机存取存储器(DDR SDRAM， Double Data Rate SDRAM)、增强型同步动态随机存取存储器(ESDRAM，Enhanced SDRAM)、同步连接动态随机存取存储器(SLDRAM，Synchlink DRAM)和直接内存总线随机存取存储器(DR RAM，Direct Rambus RAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质，用于存储计算机程序。
可选的，该计算机可读存储介质可应用于本申请实施例中的网络设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备，并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序产品，包括计算机程序指令。
可选的，该计算机程序产品可应用于本申请实施例中的网络设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序产品可应用于本申请实施例中的移动终端/终端设备，并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的，该计算机程序可应用于本申请实施例中的网络设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程，为了简洁，在此不再赘述。
可选地，该计算机程序可应用于本申请实施例中的移动终端/终端设备，当该计算机程序在计算机上运行时，使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程，为了简洁，在此不再赘述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法， 可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (39)

  1. 一种用于物理随机接入信道PRACH传输的信道接入方法，其特征在于，包括：
    终端设备确定目标信道接入方式，所述目标信道接入方式为用于所述终端设备在免授权载波上传输所述PRACH的信道接入方式；
    所述终端设备根据所述目标信道接入方式确定目标时域资源是否可用，其中，所述目标时域资源是所述终端设备用于发送所述PRACH的时域资源。
  2. 根据权利要求1所述的方法，其特征在于，所述终端设备确定目标信道接入方式，包括：
    所述终端设备根据标准规范确定所述目标信道接入方式；
    或，所述终端设备根据网络设备配置确定所述目标信道接入方式；
    或，所述终端设备根据所述目标时域资源确定所述目标信道接入方式。
  3. 根据权利要求2所述的方法，其特征在于，所述终端设备根据所述目标时域资源确定所述目标信道接入方式，包括，
    所述终端设备根据所述目标时域资源是否属于共享信道占用时间SCOT确定所述目标信道接入方式。
  4. 根据权利要求2或3所述的方法，其特征在于，所述目标信道接入方式包括优先级最高的第一类型信道接入方式、第二类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。
  5. 根据权利要求1所述的方法，其特征在于，所述终端设备确定目标信道接入方式，包括：
    所述终端设备根据触发所述PRACH发送的业务优先级确定所述目标信道接入方式，其中，所述目标信道接入方式为至少两种候选信道接入方式中的一种，所述至少两种候选信道接入方式和触发所述PRACH发送的业务优先级对应。
  6. 根据权利要求5所述的方法，其特征在于，所述至少两种候选信道接入方式和触发所述PRACH发送的业务优先级的对应关系是标准规范规定的，或者，所述对应关系是网络设备配置的。
  7. 根据权利要求5或6所述的方法，其特征在于，所述至少两种候选信道接入方式包括优先级最高的第一类型信道接入方式、第二类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述PRACH对应的随机接入过程为基于竞争的随机接入过程，或，所述PRACH对应的随机接入过 程为基于非竞争的随机接入过程。
  9. 根据权利要求1所述的方法，其特征在于，所述终端设备确定目标信道接入方式，包括：
    所述终端设备根据所述PRACH对应的随机接入过程确定所述目标信道接入方式，其中，所述随机接入过程包括基于竞争的随机接入过程和基于非竞争的随机接入过程。
  10. 根据权利要求9所述的方法，其特征在于，所述PRACH对应的随机接入过程为基于非竞争的随机接入过程，所述方法包括：
    所述终端设备根据第一指示信息确定所述目标信道接入方式，其中，所述第一指示信息是所述网络设备通过物理层信令发送给所述终端设备的。
  11. 根据权利要求10所述的方法，其特征在于，所述第一指示信息指示的所述目标信道接入方式是所述网络设备根据触发所述PRACH发送的业务优先级确定的，或，所述第一指示信息指示的所述目标信道接入方式是所述网络设备根据所述目标时域资源是否属于SCOT确定的。
  12. 根据权利要求10或11所述的方法，其特征在于，所述第一指示信息还用于确定以下信息中的至少一种：
    所述PRACH的起始位置、所述PRACH的结束位置、所述PRACH对应的发送波束标识、所述PRACH对应的接收波束标识。
  13. 一种用于物理随机接入信道PRACH传输的信道接入方法，其特征在于，包括：
    网络设备向终端设备发送配置信息，以便所述终端设备根据所述配置信息确定目标信道接入方式，所述目标信道接入方式为用于所述终端设备在免授权载波上传输所述PRACH的信道接入方式。
  14. 根据权利要求13所述的方法，其特征在于，
    所述配置信息为所述目标信道接入方式；
    或，所述配置信息为至少两种候选信道接入方式和触发所述PRACH发送的业务优先级的对应关系，以便所述终端设备根据触发所述PRACH发送的业务优先级确定所述目标信道接入方式，其中，所述目标信道接入方式为所述至少两种候选信道接入方式中的一种。
  15. 一种用于物理随机接入信道PRACH传输的信道接入方法，其特征在于，包括：
    当所述PRACH对应的随机接入过程为基于非竞争的随机接入过程时，网络设备通过物理层信令向终端设备发送第一指示信息，以便所述终端设备根据所述第一指示信息确定目标信道接入方式，所述目标信道接入方式为用于所述终端设备在免 授权载波上传输所述PRACH的信道接入方式。
  16. 根据权利要求15所述的方法，其特征在于，
    所述第一指示信息指示的所述目标信道接入方式是所述网络设备根据触发所述PRACH发送的业务优先级确定的，或，
    所述第一指示信息指示的所述目标信道接入方式是所述网络设备根据所述目标时域资源是否属于共享信道占用时间SCOT确定的。
  17. 根据权利要求15或16所述的方法，其特征在于，所述第一指示信息还用于确定以下信息中的至少一种：
    所述PRACH的起始位置、所述PRACH的结束位置、所述PRACH对应的发送波束标识、所述PRACH对应的接收波束标识。
  18. 一种用于物理随机接入信道PRACH传输的信道接入装置，其特征在于，包括：第一确定单元以及第二确定单元；
    所述第一确定单元，用于确定目标信道接入方式，所述目标信道接入方式为用于终端设备在免授权载波上传输所述PRACH的信道接入方式；
    所述第二确定单元，用于根据所述目标信道接入方式确定目标时域资源是否可用，其中，所述目标时域资源是所述终端设备用于发送所述PRACH的时域资源。
  19. 根据权利要求18所述的装置，其特征在于，
    所述第一确定单元根据标准规范确定所述目标信道接入方式；
    或，所述第一确定单元根据网络设备配置确定所述目标信道接入方式；
    或，所述第一确定单元根据所述目标时域资源确定所述目标信道接入方式。
  20. 根据权利要求19所述的装置，其特征在于，
    所述第一确定单元根据所述目标时域资源是否属于共享信道占用时间SCOT确定所述目标信道接入方式。
  21. 根据权利要求19或20所述的装置，其特征在于，所述目标信道接入方式包括优先级最高的第一类型信道接入方式、第二类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。
  22. 根据权利要求18所述的装置，其特征在于，
    所述第一确定单元根据触发所述PRACH发送的业务优先级确定所述目标信道接入方式，其中，所述目标信道接入方式为至少两种候选信道接入方式中的一种，所述至少两种候选信道接入方式和触发所述PRACH发送的业务优先级对应。
  23. 根据权利要求22所述的装置，其特征在于，所述至少两种候选信道接入方式和触发所述PRACH发送的业务优先级的对应关系是标准规范规定的，或者，所述对应关系是网络设备配置的。
  24. 根据权利要求22或23所述的装置，其特征在于，所述至少两种候选信道接入方式包括优先级最高的第一类型信道接入方式、第二类型信道接入方式、方向性的优先级最高的第一类型信道接入方式、方向性的第二类型信道接入方式、不做信道检测中的至少一种。
  25. 根据权利要求18至24中任一项所述的装置，其特征在于，所述PRACH对应的随机接入过程为基于竞争的随机接入过程，或，所述PRACH对应的随机接入过程为基于非竞争的随机接入过程。
  26. 根据权利要求18所述的装置，其特征在于，
    所述第一确定单元根据所述PRACH对应的随机接入过程确定所述目标信道接入方式，其中，所述随机接入过程包括基于竞争的随机接入过程和基于非竞争的随机接入过程。
  27. 根据权利要求26所述的装置，其特征在于，所述PRACH对应的随机接入过程为基于非竞争的随机接入过程，所述第一确定单元根据第一指示信息确定所述目标信道接入方式，其中，所述第一指示信息是所述网络设备通过物理层信令发送给所述终端设备的。
  28. 根据权利要求27所述的装置，其特征在于，所述第一指示信息指示的所述目标信道接入方式是所述网络设备根据触发所述PRACH发送的业务优先级确定的，或，所述第一指示信息指示的所述目标信道接入方式是所述网络设备根据所述目标时域资源是否属于SCOT确定的。
  29. 根据权利要求27或28所述的装置，其特征在于，所述第一指示信息还用于确定以下信息中的至少一种：
    所述PRACH的起始位置、所述PRACH的结束位置、所述PRACH对应的发送波束标识、所述PRACH对应的接收波束标识。
  30. 一种用于物理随机接入信道PRACH传输的信道接入装置，其特征在于，包括：第一发送单元；
    所述第一发送单元，用于向终端设备发送配置信息，以便所述终端设备根据所述配置信息确定目标信道接入方式，所述目标信道接入方式为用于所述终端设备在免授权载波上传输所述PRACH的信道接入方式。
  31. 根据权利要求30所述的装置，其特征在于，
    所述配置信息为所述目标信道接入方式；
    或，所述配置信息为至少两种候选信道接入方式和触发所述PRACH发送的业务优先级的对应关系，以便所述终端设备根据触发所述PRACH发送的业务优先级确定所述目标信道接入方式，其中，所述目标信道接入方式为至少两种候选信道接入方式中的一种。
  32. 一种用于物理随机接入信道PRACH传输的信道接入装置，其特征在于，包括：第二发送单元；
    所述第二发送单元，用于当所述PRACH对应的随机接入过程为基于非竞争的随机接入过程时，通过物理层信令向终端设备发送第一指示信息，以便所述终端设备根据所述第一指示信息确定目标信道接入方式，所述目标信道接入方式为用于所述终端设备在免授权载波上传输所述PRACH的信道接入方式。
  33. 根据权利要求32所述的装置，其特征在于，
    所述第一指示信息指示的所述目标信道接入方式是根据触发所述PRACH发送的业务优先级确定的，或，
    所述第一指示信息指示的所述目标信道接入方式是根据所述目标时域资源是否属于共享信道占用时间SCOT确定的。
  34. 根据权利要求32或33所述的装置，其特征在于，所述第一指示信息还用于确定以下信息中的至少一种：
    所述PRACH的起始位置、所述PRACH的结束位置、所述PRACH对应的发送波束标识、所述PRACH对应的接收波束标识。
  35. 一种通信设备，其特征在于，包括：处理器和存储器，所述存储器用于存储计算机程序，所述处理器用于调用并运行所述存储器中存储的计算机程序，执行如权利要求1至17中任一项所述的方法。
  36. 一种芯片，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如权利要求1至17中任一项所述的方法。
  37. 一种计算机可读存储介质，其特征在于，用于存储计算机程序，所述计算机程序使得计算机执行如权利要求1至17中任一项所述的方法。
  38. 一种计算机程序产品，其特征在于，包括计算机程序指令，所述计算机程序指令使得计算机执行如权利要求1至17中任一项所述的方法。
  39. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求1至17中任一项所述的方法。
PCT/CN2019/088136 2018-06-20 2019-05-23 用于物理随机接入信道传输的信道接入方法、装置和程序 Ceased WO2019242452A1 (zh)

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