WO2022027521A1 - 上行信号的发送和接收方法以及装置 - Google Patents

上行信号的发送和接收方法以及装置 Download PDF

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Publication number
WO2022027521A1
WO2022027521A1 PCT/CN2020/107576 CN2020107576W WO2022027521A1 WO 2022027521 A1 WO2022027521 A1 WO 2022027521A1 CN 2020107576 W CN2020107576 W CN 2020107576W WO 2022027521 A1 WO2022027521 A1 WO 2022027521A1
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WIPO (PCT)
Prior art keywords
signal
information
channel
terminal device
channel detection
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Application number
PCT/CN2020/107576
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English (en)
French (fr)
Inventor
蒋琴艳
张磊
陈哲
王昕�
张健
谷俊嵘
Original Assignee
富士通株式会社
蒋琴艳
张磊
陈哲
王昕�
张健
谷俊嵘
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 富士通株式会社, 蒋琴艳, 张磊, 陈哲, 王昕�, 张健, 谷俊嵘 filed Critical 富士通株式会社
Priority to EP20948348.6A priority Critical patent/EP4195814A4/en
Priority to KR1020237003219A priority patent/KR20230030650A/ko
Priority to PCT/CN2020/107576 priority patent/WO2022027521A1/zh
Priority to JP2023505729A priority patent/JP2023537283A/ja
Priority to CN202080102703.9A priority patent/CN115804192A/zh
Publication of WO2022027521A1 publication Critical patent/WO2022027521A1/zh
Priority to US18/099,314 priority patent/US20230156779A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/04—Scheduled access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—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
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal

Definitions

  • the embodiments of the present application relate to the field of communication technologies.
  • NR New Radio
  • Rel-15 New Radio
  • Rel-16 New Radio
  • NR systems can support operation in the following frequency ranges (including FR1 and FR2).
  • BWP BandWidth Part
  • SCS Sub-Carrier Spacing
  • a network device eg, a base station
  • Different SCSs can be configured for different BWPs, and the SCSs can be 15kHz, 30kHz, 60kHz, and 120kHz.
  • the terminal device can use the active BWP (active BWP) to work, and can work according to signaling, such as radio resource control (RRC, Radio Resource Control) messages, downlink control information (DCI, Downlink Control Information), or according to timer status, etc.
  • RRC radio resource control
  • DCI Downlink Control Information
  • timer status etc.
  • the SCS of the Physical Uplink Shared Channel (PUSCH, Physical Uplink Shared Channel), Physical Uplink Control Channel (PUCCH, physical Uplink Control Channel), and Sounding Reference Signal (SRS, Sounding Reference Signal) on a UL BWP is the The SCS of the UL BWP, and the SCS of the Physical Random Access Channel (PRACH, Physical Random Access Channel) can be the same or different from the SCS of the UL BWP; the SCS of the PRACH is additionally configured by the network device (such as a base station).
  • the network device such as a base station
  • the above-mentioned higher frequencies may be unlicensed spectrum (or called shared spectrum) or licensed spectrum; on the other hand, for unlicensed spectrum, the regulatory requirements for spectrum use may be different in each country or region, such as some countries or regions.
  • Channel detection is mandatory in regions, such as LBT (Listen Before Talk) or CCA (Clear Channel Assessment), while some countries or regions do not require it. Also, in some scenarios, such as when it can be guaranteed in some way that no other technologies or systems or devices coexist, using LBT may lead to unnecessary power consumption and reduce resource utilization and system throughput.
  • the transmission and reception methods of uplink signals need to be flexibly adapted to different scenarios, and in order to save the power of terminal equipment and improve resource utilization and throughput, it is necessary to Avoid unnecessary channel detection by terminal equipment as much as possible.
  • embodiments of the present application provide a method and apparatus for sending and receiving an uplink signal.
  • a method for sending an uplink signal including:
  • the terminal device receives a first signal sent by the network device, the first signal is at least used by the terminal device to determine whether and/or how to perform channel detection before sending the second signal;
  • the terminal device sends the second signal to the network device using the uplink resource.
  • an apparatus for sending an uplink signal including:
  • a receiving unit which receives a first signal sent by the network device, where the first signal is at least used by the terminal device to determine whether and/or how to perform channel detection before sending the second signal;
  • a sending unit which sends the second signal to the network device using uplink resources.
  • a method for receiving an uplink signal including:
  • the network device sends a first signal to the terminal device, the first signal is at least used by the terminal device to determine whether and/or how to perform channel detection before sending the second signal;
  • the network device receives the second signal sent by the terminal device using uplink resources.
  • an apparatus for receiving an uplink signal including:
  • a sending unit that sends a first signal to a terminal device, the first signal being at least used by the terminal device to determine whether and/or how to perform channel detection before sending the second signal;
  • a receiving unit which receives the second signal sent by the terminal device using uplink resources.
  • the terminal device receives the first signal sent by the network device, where the first signal is at least used by the terminal device to determine whether to perform channel detection and/or how to perform channel detection before sending the second signal ; and the terminal device sends the second signal to the network device using the uplink resource.
  • the network device can flexibly control whether the terminal device performs channel detection or not and/or how the terminal device performs channel detection, thereby being applicable to a variety of scenarios, and Unnecessary channel detection can be avoided as much as possible, thereby saving the power of terminal equipment and improving resource utilization and throughput.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a method for sending an uplink signal according to an embodiment of the present application
  • FIG. 3 is an example diagram of a terminal device according to an embodiment of the present application determining whether to perform channel detection and/or how to perform channel detection before sending a second signal according to the frequency domain position of the SSB;
  • FIG. 4 is an example diagram of determining whether to perform channel detection and/or how to perform channel detection before sending the second signal according to the relative position of the SSB and the RMSI by the terminal device according to the embodiment of the present application;
  • FIG. 5 is an example diagram of type 1 in mode 1 of an embodiment of the present application.
  • FIG. 6 is another example diagram of type 1 in mode 1 of an embodiment of the present application.
  • FIG. 10 is another example diagram of type 2 in mode 1 of an embodiment of the present application.
  • FIG. 11 is another example diagram of type 2 in mode 1 of an embodiment of the present application.
  • FIG. 12 is an example diagram of type 1 in mode 2 of an embodiment of the present application.
  • FIG. 13 is an example diagram of type 2 in mode 2 of an embodiment of the present application.
  • FIG. 15 is another example diagram of type 2 in mode 2 of an embodiment of the present application.
  • 16 is an example diagram of sending an uplink signal by a terminal device according to an embodiment of the present application.
  • 17 is a schematic diagram of a method for receiving an uplink signal according to an embodiment of the present application.
  • FIG. 18 is a schematic diagram of an apparatus for transmitting an uplink signal according to an embodiment of the present application.
  • FIG. 19 is a schematic diagram of an apparatus for receiving an uplink signal according to an embodiment of the present application.
  • FIG. 20 is a schematic diagram of a network device according to an embodiment of the present application.
  • FIG. 21 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • the terms “first”, “second”, etc. are used to distinguish different elements in terms of numelation, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be referred to by these terms restricted.
  • the term “and/or” includes any and all combinations of one or more of the associated listed items.
  • the terms “comprising”, “including”, “having”, etc. refer to the presence of stated features, elements, elements or components, but do not preclude the presence or addition of one or more other features, elements, elements or components.
  • the term “communication network” or “wireless communication network” may refer to a network that conforms to any of the following communication standards, such as Long Term Evolution (LTE, Long Term Evolution), Long Term Evolution Enhanced (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), high-speed message access (HSPA, High-Speed Packet Access) and so on.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution Enhanced
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • the communication between devices in the communication system can be carried out according to communication protocols at any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G , New Radio (NR, New Radio), etc., and/or other communication protocols currently known or to be developed in the future.
  • Network device refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device.
  • Network devices may include but are not limited to the following devices: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobility management entity (MME, Mobile Management Entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller) and so on.
  • the base station may include but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), and 5G base station (gNB), etc., and may also include a remote radio head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay) or low power node (eg femeto, pico, etc.).
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • relay relay
  • low power node eg femeto, pico, etc.
  • base station may include some or all of their functions, each base station may provide communication coverage for a particular geographic area.
  • the term "cell” may refer to a base station and/or its coverage area, depending on the context in which the term is used. The terms “cell” and “base station” are interchangeable without causing confusion.
  • the term "User Equipment” (UE, User Equipment) or “Terminal Equipment” (TE, Terminal Equipment or Terminal Device), for example, refers to a device that accesses a communication network through a network device and receives network services.
  • a terminal device may be fixed or mobile, and may also be referred to as a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, and the like.
  • the terminal device may include but is not limited to the following devices: Cellular Phone (Cellular Phone), Personal Digital Assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication device, handheld device, machine type communication device, laptop computer, Cordless phones, smartphones, smart watches, digital cameras, and more.
  • Cellular Phone Cellular Phone
  • PDA Personal Digital Assistant
  • wireless modem wireless communication device
  • handheld device machine type communication device
  • laptop computer Cordless phones, smartphones, smart watches, digital cameras, and more.
  • the terminal device may also be a machine or device that performs monitoring or measurement, such as but not limited to: Machine Type Communication (MTC, Machine Type Communication) terminals, In-vehicle communication terminals, device-to-device (D2D, Device to Device) terminals, machine-to-machine (M2M, Machine to Machine) terminals, etc.
  • MTC Machine Type Communication
  • D2D Device to Device
  • M2M Machine to Machine
  • network side or “network device side” refers to one side of the network, which may be a certain base station, and may also include one or more network devices as described above.
  • user side or “terminal side” or “terminal device side” refers to the side of the user or terminal, which may be a certain UE, and may also include one or more terminal devices as described above.
  • equipment may refer to network equipment or terminal equipment.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application, which schematically illustrates the case of a terminal device and a network device as an example.
  • a communication system 100 may include a network device 101 and terminal devices 102 and 103 .
  • FIG. 1 only takes two terminal devices and one network device as an example for description, but the embodiment of the present application is not limited to this.
  • Enhanced Mobile Broadband eMBB, enhanced Mobile Broadband
  • Massive Machine Type Communication mMTC, massive Machine Type Communication
  • Ultra-Reliable and Low Latency Communication URLLC, Ultra-Reliable and Low.
  • -Latency Communication etc.
  • FIG. 1 shows that both terminal devices 102 and 103 are within the coverage of the network device 101, but the present application is not limited to this. Both terminal devices 102 , 103 may not be within the coverage of the network device 101 , or one terminal device 102 may be within the coverage of the network device 101 and the other end device 103 may be outside the coverage of the network device 101 .
  • uplink control signal and “uplink control information (UCI, Uplink Control Information)” or “physical uplink control channel (PUCCH, Physical Uplink Control Channel)” or “PUSCH transmission” is interchangeable, and the terms “uplink data signal” and “uplink data information” or “Physical Uplink Shared Channel (PUSCH, Physical Uplink Shared Channel)” or “PUCCH transmission (PUSCH transmission) are interchangeable;
  • Random access channel Random Access Channel
  • PRACH Physical Random Access Channel
  • preamble preamble
  • PRACH transmission PUSCH transmission
  • downlink control signal and “downlink control information (DCI, Downlink Control Information)” or “physical downlink control channel (PDCCH, Physical Downlink Control Channel)” are interchangeable, and the terms “downlink data signal” and “downlink data information” Or “Physical Downlink Shared Channel (PDSCH, Physical Downlink Shared Channel)” can be interchanged.
  • DCI Downlink Control Information
  • PDCCH Physical Downlink Control Channel
  • sending or receiving PUSCH can be understood as sending or receiving uplink data information carried by PUSCH
  • sending or receiving PUCCH can be understood as sending or receiving uplink control information carried by PUCCH
  • sending or receiving PRACH can be understood as sending or receiving PRACH Beared preamble
  • uplink signals may include uplink data signals and/or uplink control signals and/or uplink reference signals (for example, DMRS, PT-RS, SRS) and/or random access channels, etc., also known as uplink transmission ( UL transmission) or uplink information or uplink channel.
  • Sending the uplink signal on the uplink resource can be understood as using the uplink resource to send the uplink signal.
  • the high-layer signaling may be, for example, Radio Resource Control (RRC) signaling or Medium Access Control (MAC, Medium Access Control) signaling.
  • RRC signaling is, for example, an RRC message (RRC message)
  • MAC signaling is, for example, a MAC CE (MAC Control Element).
  • RRC message sent by the base station includes, for example, a broadcast RRC message and/or a dedicated RRC message.
  • the broadcasted RRC message is, for example, an RRC message periodically broadcast by the base station, such as an RRC message included in a BCCH-BCH-Message (class), such as a Main Information Block (MIB, Main Information Block), etc.; or, a BCCH-DL-SCH-Message (class) includes RRC messages, such as SIB1 (or RMSI), SystemInformation, etc.
  • a BCCH-BCH-Message class
  • MIB Main Information Block
  • BCCH-DL-SCH-Message class
  • RRC messages such as SIB1 (or RMSI), SystemInformation, etc.
  • the dedicated RRC message is, for example, the RRC message sent by the base station to a specific UE, such as the RRC message included in the DL-CCCH-Message (class), such as RRCSetup, or the RRC message included in the DL-DCCH-Message (class) , for example, RRCReconfiguration, RRCResume, RRCReestablishment, SystemInformation, etc.
  • a specific UE such as the RRC message included in the DL-CCCH-Message (class), such as RRCSetup, or the RRC message included in the DL-DCCH-Message (class) , for example, RRCReconfiguration, RRCResume, RRCReestablishment, SystemInformation, etc.
  • An RRC message may include one or more RRC IEs (RRC information elements) or one or more information fields (fields), and an RRC IE may also include one or more other RRC IEs or information fields.
  • the physical layer signaling may be, for example, DCI (Downlink Control Information) or UCI (Uplink Control Information).
  • FIG. 2 is a schematic diagram of a method for sending an uplink signal according to an embodiment of the present application. As shown in FIG. 2 , the method includes:
  • a terminal device receives a first signal sent by a network device, where the first signal is at least used by the terminal device to determine whether to perform channel detection and/or how to perform channel detection before sending the second signal;
  • the terminal device sends the second signal to the network device by using uplink resources.
  • FIG. 2 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto.
  • the execution order of the various operations can be adjusted appropriately, and other operations can be added or some of the operations can be reduced.
  • Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the description of the above-mentioned FIG. 2 .
  • the first signal includes at least one of the following: Synchronization Signal Block (SSB, Synchronization Signal Block), Radio Resource Control (RRC) message, Medium Access Control (MAC) Control Element (CE), Downlink Control Information ( DCI), Random Access Response (RAR); but the present application is not limited to this.
  • SSB Synchronization Signal Block
  • RRC Radio Resource Control
  • MAC Medium Access Control
  • CE Control Element
  • DCI Downlink Control Information
  • RAR Random Access Response
  • the terminal device determines whether to perform channel detection before sending the second signal, including: the terminal device determines not to perform channel detection before sending the second signal, or the terminal device determines to perform channel detection before sending the second signal .
  • the terminal device determining how to perform channel detection before sending the second signal includes: the terminal device determining a length of time for channel detection before sending the second signal; and/or, the terminal device determining that the channel detection is performed before sending the second signal; the channel access type of the channel detection performed before the signal; and/or the terminal device determines the channel access priority of the channel detection performed before the transmission of the second signal.
  • determining the time length of the channel detection performed by the terminal device before sending the second signal may include: the terminal device determining or generating the value of the random number used for performing the channel detection.
  • the first signal may be used to instruct the terminal device to perform channel detection before sending the second signal, or the first signal may also be used to instruct the terminal device not to perform channel detection before sending the second signal.
  • the first signal may be used to instruct the terminal device how to perform channel detection before sending the second signal.
  • it can be used to instruct the terminal device to perform at least one of the following channel detection before sending the second signal: the time length of the channel detection; the value of the random number used for the channel detection; The value of the first parameter of the random number (for example, the contention window CW); the value range of the first parameter used to generate the random number used for channel detection; the channel access type; the channel access priority; the channel access enter mode.
  • the first signal is used to indicate the operating frequency band.
  • the terminal device can determine the time length of channel detection according to the value of the indicated random number; or, generate a random number according to the value of the indicated CW, and then determine the time length of channel detection; or, according to the value range of the indicated CW , use one of the CW values to generate a random number, and then determine the time length of channel detection.
  • the terminal device may determine the channel access type according to the indication of the first signal; or may determine the channel access priority according to the indication; or may determine the channel access mode according to the indication.
  • sending the second signal to the network device by the terminal device using the uplink resource includes: if the terminal device determines that channel detection is not performed when sending the second signal, the terminal device sends the channel detection without performing channel detection. The second signal, otherwise, the terminal device performs channel detection before sending the second signal, and only sends the second signal when it is detected that the channel is idle.
  • the uplink resource may be in a licensed frequency band, and the uplink resource may also be in an unlicensed frequency band.
  • the first signal is a synchronization signal block (SSB); the terminal device determines whether and/or how to perform channel detection before sending the second signal according to at least one of the synchronization signal blocks (SSB):
  • SSB synchronization signal block
  • SSB synchronization signal block
  • PSS Primary Synchronization Signal
  • SSB synchronization signal block
  • SSS Secondary Synchronization Signal
  • SSB synchronization signal block
  • DMRS demodulation reference signal
  • PBCH Physical Broadcast Channel
  • SSB synchronization signal block
  • DMRS demodulation reference signal
  • PBCH physical broadcast channel
  • SSB synchronization signal block
  • PBCH Physical Broadcast Channel
  • SSB Synchronization Signal Block
  • PBCH physical broadcast channel
  • SSB synchronization signal block
  • SSB synchronization signal block
  • RMSI remaining minimum system information
  • the SSB is a cell-defining SSB (cell-defining SSB), but the present application is not limited thereto.
  • the terminal device may determine whether and/or how to perform channel detection before sending the second signal according to the frequency domain location of the SSB.
  • FIG. 3 is an example diagram illustrating whether and/or how to perform channel detection before sending a second signal by a terminal device according to a frequency domain position of an SSB, according to an embodiment of the present application.
  • two sets of sync rasters may be predefined, as shown in Figure 3.
  • the terminal equipment receives the SSB sent by a cell. If the received SSB is on the first group of sync raster (such as SSB1), the terminal equipment does not perform channel detection before sending the second signal on the uplink carrier of the cell; If the SSB is on the second group of sync raster (such as SSB2), the terminal device performs channel detection before sending the second signal on the uplink carrier of the cell.
  • the first group of sync raster such as SSB1
  • the terminal equipment does not perform channel detection before sending the second signal on the uplink carrier of the cell.
  • the SSB is on the second group of sync raster (such as SSB2)
  • the terminal device performs channel detection before sending the second signal on the uplink carrier of the cell.
  • the terminal device performs channel detection before sending the second signal.
  • at least one of the following parameters or information can be pre-defined or pre-configured: the time length of channel detection; the value of the first parameter (for example, the contention window CW) used to generate the random number used for channel detection; The value range of the first parameter for generating the random number used for channel detection; the channel access type; the channel access priority; and the channel access mode.
  • the terminal device may further determine whether and/or how to perform channel detection before sending the second signal according to the time domain position of the SSB. For example, if the cell-defining SSB is in the first half frame of a frame, the terminal device does not perform channel detection, and if it is in the second half frame, the terminal device performs channel detection. In the same way, modifications can be made as appropriate.
  • the terminal device may further determine whether to perform channel detection and/or how to perform channel detection before sending the second signal according to the relative positions of the SSB and the RMSI.
  • FIG. 4 is an example diagram of whether and/or how to perform channel detection before sending the second signal by the terminal device according to the relative position of the SSB and the RMSI, according to an embodiment of the present application. For example, as shown in FIG. 4 , if SSB and CORESET#0 use pattern 1 (pattern 1), the terminal equipment does not perform channel detection; if pattern 2 (pattern 2) is used, the terminal equipment performs channel detection.
  • pattern 1 pattern 1
  • pattern 2 pattern 2
  • 3 and 4 only exemplarily illustrate how the terminal device determines whether to perform channel detection and/or how to perform channel detection before sending the second signal according to the SSB, and the embodiments of the present application are not limited thereto. How to determine whether to perform channel detection and/or how to perform channel detection before sending the second signal according to the above-mentioned SSB-related information can be flexibly selected according to actual needs.
  • the first signal is a Radio Resource Control (RRC) message or a MAC CE or DCI.
  • RRC Radio Resource Control
  • MAC CE MAC CE
  • the first signal includes an RRC message.
  • the first information may be included in the RRC message.
  • the first information is the RRC IE or filed.
  • the terminal device determines whether and/or how to perform channel detection before sending the second signal according to the first information included in the radio resource control (RRC) message.
  • RRC radio resource control
  • the RRC message may explicitly instruct the UE whether and/or how to perform channel detection before sending the second signal through the first information.
  • the first information is used to indicate at least one of the following channel detection performed by the terminal device before sending the second signal: the time length of channel detection; the random number used for channel detection (for example, N in FIG. 5 described later , the value of the first parameter (for example, the contention window CW) used to generate the random number used for channel detection, can be instructed by the base station based on the first parameter to the UE through the first information); The value range of the first parameter of the random number used for channel detection; the channel access type; the channel access priority; the channel access mode.
  • the first information is used to indicate the channel access mode, and one of the channel access modes that the first information can indicate is not to perform channel detection, then the first information indicates that the channel access mode is not to perform channel detection.
  • the terminal device does not perform channel detection before sending the second signal.
  • the terminal device performs channel detection before sending the second signal.
  • how to perform channel detection before the terminal device sends the second signal is predefined or pre-configured. Taking the first information as channelAccessMode as an example, it may be explicitly indicated not to perform channel detection.
  • the first information pertains to at least one of the following: system, cell group, cell, carrier, channel group, partial bandwidth (BWP), channel, beam, Physical channel/physical signal, data carried by physical channel/physical signal.
  • the physical channel is, for example, PRACH/PUCCH/PUSCH
  • the physical signal is, for example, SRS.
  • the UE can determine whether to perform channel detection and/or how to perform channel detection according to the first information, and the determined result is applicable to all uplink signals sent by the UE in the cell. More specifically, for example, if a UE learns that a cell "does not perform channel detection", the UE does not detect the channel before sending for all uplink signals of the cell. For another example, if the first information is per BWP, that is, if a UE learns that a UL BWP is "do not perform channel detection", for all uplink signals of the UL BWP, the UE does not detect the channel before sending.
  • the first information may be cell-specific (cell-specific), or may also be device-specific (UE-specific).
  • cell-specific means that for all UEs in a cell, the indication of the first information is the same, and the first information may be broadcast by the base station or sent by the base station to a specific UE;
  • UE-specific means that for all UEs in a cell
  • the indications of the first information may be different (of course, in particular, they may also be the same), and the first information may be sent by the base station to a specific UE.
  • the indication of the first information is per system/cell/channel, and the first information is included in MIB or SIB1, for example.
  • the indication of the first information is per BWP, and the first information is included in the RRCIE for configuring the BWP, for example. If the indication of the first information is per channel, the first information is included in the RRC IE for configuring the channel, for example.
  • the RRC IE used to configure the channel refers to the RRC IE used to configure the RB set and/or the intra-cell guard band(s).
  • the first signal is a radio resource control (RRC) message or a MAC CE.
  • the first information may be included in the RRC message or the MAC CE. Taking an RRC message as an example, the first information is an RRC IE or filed.
  • the UE determines whether and/or how to perform channel detection before sending the second signal according to whether the RRC message includes the first information. For example, the RRC message may implicitly instruct the UE whether and/or how to perform channel detection before sending the second signal by including the first information.
  • the terminal device does not perform channel detection before sending the second signal, and in the case that the radio resource control (RRC) message includes the first information, The terminal device performs channel detection before sending the second signal.
  • how to perform channel detection before the terminal device sends the second signal is predefined or pre-configured.
  • the first information is used to instruct channel detection, and the first information is channelAccess as an example:
  • the terminal device in the case that the radio resource control (RRC) message includes the first information, the terminal device does not perform channel detection before sending the second signal, and in the case that the radio resource control (RRC) message does not include the first information , the terminal device performs channel detection before sending the second signal.
  • RRC radio resource control
  • how to perform channel detection before the terminal device sends the second signal is predefined or pre-configured.
  • the first information is used to indicate that channel detection is not to be performed. Take the first information as noChannelSensing as an example:
  • the terminal device does not perform channel detection before sending the second signal
  • the radio resource control (RRC) message includes the first information
  • the terminal device performs channel detection before sending the second signal, and how the terminal device performs channel detection before sending the second signal is predefined or pre-configured.
  • the first information is used to indicate one of the following channel detection performed by the terminal device before sending the second signal: the time length of the channel detection; the value of the random number used for channel detection; used to generate a channel for performing channel detection
  • the value of the first parameter (egCW) of the detected random number e.gCW
  • the value range of the first parameter for generating the random number used for channel detection the channel access type; the channel access priority; the channel access model.
  • the first information is used to indicate the channel access mode, and the first information is channelAccess as an example:
  • the radio resource control (RRC) message when the working frequency band is an unlicensed frequency band, can include the first information; when the working frequency band is a licensed frequency band, the radio resource control (RRC) message does not include the first information.
  • the first information can be included.
  • the first signal may be used to indicate the operating frequency band.
  • the terminal device does not perform channel detection before sending the second signal; or, when the first signal indicates that the working frequency band is an unlicensed frequency band, the terminal device sends the second signal.
  • the channel detection is performed before the signal, and/or the terminal device determines the length of time for the channel detection to be performed before sending the second signal.
  • do not perform channel detection can be equivalent to "the working frequency band is a licensed frequency band", that is to say, the base station can also indicate that the working frequency band is a licensed frequency band to instruct the UE not to detect the channel before sending the uplink signal; and vice versa .
  • the RRC message may be indicated by the working frequency band not to perform channel detection.
  • “do not perform channel detection” may not be equivalent to "the operating frequency band is a licensed frequency band", that is, when the base station instructs "do not perform channel detection", the operating frequency band may be a licensed frequency band or an unlicensed frequency band.
  • the first signal includes an SSB and the RRC message
  • the SSB is used by the terminal device to determine that the operating frequency band is an unlicensed frequency band
  • the SSB is used by the terminal device to determine The working frequency band is a licensed frequency band. That is, the base station may additionally indicate (eg, through an SSB/RRC message) whether the operating frequency band is a licensed frequency band or an unlicensed frequency band.
  • the RRC message includes second information, where the second information is used to indicate the working frequency band. That is, taking the indication through an RRC message as an example, the RRC message may include second information, where the second information is used to indicate whether the working frequency band is a licensed frequency band or an unlicensed frequency band, or the second information is used to indicate the frequency band index (band index) of the working frequency band. index). Among them, whether a band identified by a band index is a licensed spectrum or an unlicensed spectrum is predefined.
  • the following information fields can be included in the MIB, for example:
  • RRC messages other than MIBs eg, SIB1 and/or dedicated RRC messages
  • the radio resource control (RRC) message when the first signal indicates not to perform channel detection, can include second information for indicating the operating frequency band; or, when the first signal does not indicate not to perform channel detection In the case of detection, the radio resource control (RRC) message cannot include the second information for indicating the working frequency band.
  • whether the first information may be included in the RRC message may depend on whether the operating frequency band is a licensed frequency band or an unlicensed frequency band.
  • the first information may explicitly indicate "do not perform channel detection". If the working frequency band is an unlicensed frequency band, the RRC message may include the first information. If the working frequency band is a licensed frequency band, the RRC message may not include the first information. information.
  • whether the RRC message can include the second information may depend on whether the base station instructs the UE not to detect the channel before sending the uplink signal.
  • the base station may indicate "do not perform channel detection" through the SSB and/or the RRC message, then the RRC message may include the second information, otherwise the RRC message may not include the second information.
  • the channel access mode includes a mode without channel detection, and the channel access mode may also include a dynamic channel access mode and/or a semi-static channel access mode.
  • Mode 1 LBE (dynamic channel access mode);
  • Mode 2 FBE (semi-static channel access mode);
  • Mode 3 A mode in which channel detection is not performed.
  • one channel access mode may correspond to one or more channel access types.
  • a channel access type corresponding to a channel access mode may be predefined or preconfigured or configured by the base station (or referred to as base station indication). For example, it is RRC configuration or RRC message configuration, which may also be referred to as being indicated by the base station through RRC signaling.
  • the channel access type includes a type that does not perform channel detection, and may also include a type that performs channel detection.
  • mode 1 may include type 1 (for initializing occupied channels), type 2 (for sharing occupied channels), type 3 (no detection of channels).
  • FIG. 5 is an example diagram (Example 1) of Type 1 in Mode 1 of the embodiment of the present application, which exemplarily shows an example of not dividing a Channel Access Priority Class (CAPC, Channel Access Priority Class).
  • CAC Channel Access Priority Class
  • T f 8us
  • Tsl 5us
  • N random(0, CW-m)
  • m and CW are integers greater than or equal to 0, and CW>m.
  • FIG. 6 is another example diagram (Example 2) of Type 1 in Mode 1 of the embodiment of the present application, which exemplarily shows an example of dividing the CAPC.
  • T f 8us
  • Tsl 5us
  • N random(0, CW p )
  • the values of mp and CW p are shown in Table 8 below.
  • FIG. 7 is another example diagram (Example 3) of Type 1 in Mode 1 of the embodiment of the present application, which exemplarily shows a situation of sending an uplink signal without detecting a channel.
  • FIG. 8 is an example diagram (Example 1) of type 2 in mode 1 of the embodiment of the present application, for example, the channel occupancy time corresponding to type 1 channel access may be used.
  • T f 8us
  • Tsl 5us.
  • FIG. 10 is another example diagram (Example 3) of Type 2 in Mode 1 of the embodiment of the present application.
  • FIG. 11 is another example diagram (Example 4) of Type 2 in Mode 1 of the embodiment of the present application.
  • the uplink signal may be sent without detecting the channel.
  • Mode 2 may include type 1 (for initializing occupied channels), type 2 (for sharing occupied channels), and type 3 (not detecting channels).
  • FIG. 12 is an example diagram (Example 1) of Type 1 in Mode 2 of the embodiment of the present application.
  • the UE starts to send the uplink signal from the starting position of the periodic channel occupation (CO, Channel Occupation); the channel detection time is, for example, 5us.
  • CO periodic channel occupation
  • Channel Occupation Channel Occupation
  • FIG. 13 is an example diagram (Example 1) of Type 2 in Mode 2 of the embodiment of the present application. For example, if the interval between UL and DL transmission burst is not more than 3us, the UE can send the uplink signal without detecting the channel.
  • FIG. 14 is another example diagram (Example 2) of Type 2 in Mode 2 of the embodiment of the present application. For example, if the interval between UL and DL transmission burst exceeds 3us, the UE can only send uplink signals when the channel is idle.
  • the channel detection time is, for example, 5us or 13us.
  • FIG. 15 is another example diagram (Example 3) of Type 2 in Mode 2 of the embodiment of the present application.
  • the uplink signal may be sent without detecting the channel during the channel occupation time.
  • channel access modes and/or channel access types are exemplarily described above, but the present application is not limited thereto, and other channel access modes and/or channel access types may also be divided. In addition, there may be only the channel access mode, only the channel access type, or a combination of the channel access mode and the channel access type.
  • the above-mentioned uplink resources for sending the second signal may be indicated by higher layer signaling and/or DCI, or indicated by RAR, and the second signal may be PRACH, PUCCH, PUSCH, and SRS.
  • the terminal device will further exemplify whether to detect the channel and/or how to perform the channel detection and send the second signal.
  • the uplink resource is configured by an RRC message, or the uplink resource (or the second signal) is scheduled by downlink control information (DCI) or random access response (RAR) and is not included in the DCI or RAR
  • DCI downlink control information
  • RAR random access response
  • the predefined or preconfigured channel access type is a type that does not perform channel detection or a type that performs channel detection.
  • the predefined or preconfigured channel access type is at least one of the following: system, cell group, cell, carrier, channel group, partial bandwidth (BWP), channel, beam, physical channel/signal, physical channel/ The data carried by the signal.
  • BWP partial bandwidth
  • the uplink resource is configured by an RRC message, or the uplink resource (or the second signal) is scheduled by downlink control information (DCI) or random access response (RAR) and is not included in the DCI or RAR
  • DCI downlink control information
  • RAR random access response
  • the terminal device performs channel detection before sending the second signal.
  • how to perform channel detection before the terminal device sends the second signal is indicated by the third information.
  • the third information is used to indicate at least one of the following: the time length of the channel detection; the value of the random number used for the channel detection; the first parameter (egCW) used to generate the random number used for the channel detection value range of the first parameter for generating random numbers used for channel detection; channel access type; channel access priority.
  • the first parameter egCW
  • the first information is used to indicate the channel access mode, and one of the channel access modes that the first information can indicate is not to perform channel detection, then when the first information indicates that the channel access mode is not In the case of performing channel detection, the terminal device does not perform channel detection before sending the second signal. When the first information indicates other channel access modes, the terminal device performs channel detection before sending the second signal. Wherein, how to perform channel detection before the terminal device sends the second signal is indicated by the third information.
  • the third information is for at least one of the following: system, cell group, cell, carrier, channel group, partial bandwidth (BWP), channel, beam, physical channel/signal, data carried by the physical channel/signal.
  • BWP partial bandwidth
  • the uplink resource is configured by an RRC message, or the uplink resource (or the second signal) is scheduled (indicated) by Downlink Control Information (DCI) or Random Access Response (RAR) and the DCI or RAR does not include an information field used to indicate the channel access type, the first information is used to indicate the channel access type, and the terminal device uses the channel access type indicated by the first information to send the second signal.
  • DCI Downlink Control Information
  • RAR Random Access Response
  • the uplink resource (or the second signal) is scheduled by DCI or RAR, and when the first signal indicates not to perform channel detection, the terminal device determines that the DCI or RAR used to schedule the uplink resource is not in the DCI or RAR.
  • An information field for indicating the channel access type is included, and the terminal device does not perform channel detection before sending the second signal.
  • the uplink resource (or the second signal) is scheduled by DCI or RAR, and in the case where the first signal does not indicate that channel detection is not to be performed, the terminal device further determines, according to the fourth information, for scheduling the The information field included in the DCI or RAR of the uplink resource is used to indicate the channel access type, and the fourth information is at least used to indicate the channel access type that the DCI or RAR can indicate.
  • the terminal device uses the channel access type indicated by DCI or RAR to send the second signal, or, in the case where the fourth information indicates one channel access type, uses the channel access type indicated by the fourth information Send a second signal.
  • the second signal is a physical uplink shared channel (PUSCH), which is described below by taking the PUSCH as an example.
  • PUSCH physical uplink shared channel
  • the first information and/or the third information are included in the configuration information for the configuration grant (CG).
  • the UE uses the channel access type indicated by the third information included in the RRC message to send the PUSCH.
  • the UE may send the configured PUSCH without detecting the channel.
  • the UE transmits the PUSCH by using the channel access type indicated by the third information in the DCI.
  • the UE may determine the size and/or content of the DCI according to the channel access mode and/or the fourth information.
  • the fourth information is at least used to indicate the channel access type that can be indicated by the DCI.
  • the fourth information is included in the RRC message, for example.
  • the indication may be in per DCI format.
  • the third information is not included in DCI 0_0.
  • the fourth message indicates that the channel access type that can be indicated by DCI 0_0 is, for example, one or more of the above Mode 1.
  • the third information may not be included in the DCI 0_0.
  • the UE may use the channel access type indicated by the fourth message to send the PUSCH scheduled by the DCI.
  • the UE may determine the channel access type according to traffic type/priority.
  • the channel access type that can be used by the traffic type/priority can be predefined or indicated by the base station.
  • the UE may send PUSCH for carrying information such as SRB0, SRB1, and SRB3, MAC CEs (except the padding BSR and recommended bit rate MAC CEs) without detecting the channel.
  • the second signal is PUCCH, which will be described below by taking PUCCH as an example.
  • the first information or the third information is included in the configuration information of the PUCCH or the configuration information of the SR or the configuration information of the CSI.
  • the UE sends the PUCCH using the channel access type indicated by the third information included in the RRC message.
  • the third information may be included in the configuration information of the CSI report of the SR or P/SP.
  • the UE may send the configured PUCCH without detecting the channel.
  • the third information may also be of per UCI type.
  • the UE sends the PUCCH by using the channel access type indicated by the third information in SIB1.
  • the UE may determine the size and/or content of the DCI according to the channel access mode and/or the fourth information.
  • the fourth information is at least used to indicate the channel access type that can be indicated by the DCI.
  • the fourth information is included in the RRC message, for example.
  • the indication may be in per DCI format.
  • the third information is not included in DCI 1_0.
  • the fourth message indicates that the channel access type that can be indicated by DCI 1_0 is, for example, one or more of the above Mode 1.
  • the third information may not be included in the DCI 1_0.
  • the UE may use the channel access type indicated by the fourth message to send the PUCCH scheduled by the DCI.
  • the UE may determine the channel access type according to the UCI type.
  • the channel access type that the UCI type can use can be predefined or indicated by the base station.
  • the UE may send PUSCH carrying information such as HARQ-ACK, SR without detecting the channel.
  • the second signal is a sounding reference signal (SRS), and the SRS is used as an example for description below.
  • the first information or the third information is included in the configuration information of the Sounding Reference Signal (SRS).
  • the UE may send the SRS according to the channel access type indicated by the third information included in the RRC message. More specifically, the third message may be included in the SRS configuration information.
  • the UE sends the SRS using a pre-configured channel access type, for example, the pre-configured channel access type is indicated by the third information included in the RRC message,
  • the third message may be included in the SRS configuration information.
  • the second signal is a physical random access channel (PRACH), which is described below by taking PRACH as an example.
  • PRACH physical random access channel
  • the first information or the third information is included in configuration information of a physical random access channel (PRACH).
  • the UE may send PRACH according to the channel access type indicated by the third information included in the RRC message. More specifically, the third message may be included in the PRACH configuration information. For example, if the channel access type indicated by the third information is not to detect the channel, the UE may send the PRACH without detecting the channel.
  • the third information may also be of per RA type (e.g. CBRA/CFRA)/usage (UL sync./BFR).
  • the DCI used for the trigger RA may include third information, and the UE sends the PRACH by using the channel access type indicated by the third information in the DCI.
  • the UE may switch from type X1 to type X2 for the case where "type X2" based on common DCI (common SCI) is allowed.
  • Type X1 is, for example, Example 1/2 of the above-mentioned Mode 1
  • Type X2 is, for example, Example 1/2/3/4 of the above-mentioned Mode 1.
  • Type X1/X2 are predefined or RRC configured. On the other hand, it is also possible to predefine or use an RRC message to configure the signal/channel/traffic type that can perform the above-mentioned handover in the above-mentioned situation.
  • the terminal device sends a measurement result to the network device; the measurement result is for at least one of the following: cell, cell group, channel, channel group, partial bandwidth (BWP), beam.
  • the measurement result is for at least one of the following: cell, cell group, channel, channel group, partial bandwidth (BWP), beam.
  • the measurement result includes at least one of the following: received signal strength, channel occupation (CO) information, information that channel detection is required, and information that channel detection is not required.
  • CO channel occupation
  • the terminal device sends a measurement result when certain conditions are met; the conditions include: the received signal strength and/or the channel occupancy is higher than the first threshold, and/or the received signal strength and/or the channel occupancy is lower than the first threshold. Two thresholds.
  • the UE after receiving the first signal (eg, SSB and/or SIB1) sent by the second cell, the UE sends (or reports) the fifth information to the first cell.
  • the fifth information includes, for example, at least one of the following:
  • the first information carried by the first signal sent by the second cell is the first information carried by the first signal sent by the second cell
  • Channel configuration of the second cell for example, RB set and/or intra-cell guard band configuration of the second cell
  • the first cell and the second cell belong to the same communication system or different communication systems, and the first cell is an active serving cell (active serving cell) of the UE.
  • FIG. 16 is an example diagram of sending an uplink signal by a terminal device according to an embodiment of the present application.
  • the first signal for example, SSB/SIB1 . . .
  • information can also be exchanged between the UE and the first cell (cell A).
  • the terminal device receives the first signal sent by the network device, and the first signal is at least used by the terminal device to determine whether to perform channel detection and/or how to perform channel detection before sending the second signal; and the terminal The device sends the second signal to the network device using the uplink resource.
  • NR can be supported for uplink transmission on higher frequencies
  • the network device can flexibly control whether the terminal device performs channel detection or not and/or how the terminal device performs channel detection, thereby being applicable to a variety of scenarios, and Unnecessary channel detection can be avoided as much as possible, thereby saving the power of terminal equipment and improving resource utilization and throughput.
  • An embodiment of the present application provides a method for receiving an uplink signal, which is described from a network device, and the same content as that of the embodiment of the first aspect will not be repeated.
  • FIG. 17 is a schematic diagram of a method for receiving an uplink signal according to an embodiment of the present application. As shown in FIG. 17 , the method includes:
  • the network device sends a first signal to a terminal device, where the first signal is at least used by the terminal device to determine whether to perform channel detection and/or how to perform channel detection before sending the second signal;
  • the network device receives the second signal sent by the terminal device using uplink resources.
  • FIG. 17 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto.
  • the execution order of the various operations can be adjusted appropriately, and other operations can be added or some of the operations can be reduced.
  • Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the description of the above-mentioned FIG. 17 .
  • the terminal device receives the first signal sent by the network device, and the first signal is at least used by the terminal device to determine whether to perform channel detection and/or how to perform channel detection before sending the second signal; and the terminal The device sends the second signal to the network device using the uplink resource.
  • NR can be supported for uplink transmission on higher frequencies
  • the network device can flexibly control whether the terminal device performs channel detection or not and/or how the terminal device performs channel detection, thereby being applicable to a variety of scenarios, and Unnecessary channel detection can be avoided as much as possible, thereby saving the power of terminal equipment and improving resource utilization and throughput.
  • An embodiment of the present application provides an apparatus for sending an uplink signal.
  • the apparatus may be, for example, a terminal device, or may be one or some components or components configured in the terminal device, and the same content as the embodiment of the first aspect will not be repeated.
  • FIG. 18 is a schematic diagram of an apparatus for transmitting an uplink signal according to an embodiment of the present application. As shown in FIG. 18 , an apparatus 1800 for transmitting an uplink signal includes:
  • a receiving unit 1801 which receives a first signal sent by a network device, where the first signal is at least used by the terminal device to determine whether to perform channel detection and/or how to perform channel detection before sending the second signal;
  • a sending unit 1802 which uses uplink resources to send the second signal to the network device.
  • the first signal includes at least one of the following: a synchronization signal block, a radio resource control message, a medium access control control element, and downlink control information.
  • the uplink resources are on licensed frequency bands, or the uplink resources are on unlicensed frequency bands.
  • the first signal is used to indicate the channel access mode and/or the channel access type and/or the operating frequency band.
  • the first signal is a synchronization signal block; the terminal device determines whether to perform channel detection and/or how to perform channel detection before sending the second signal according to at least one of the following synchronization signal blocks:
  • the first signal includes a radio resource control message or MAC CE or DCI; the terminal device determines, according to the first information included in the radio resource control message, not to perform channel detection before sending the second signal.
  • the terminal device determines, according to the first information included in the RRC message, to perform channel detection before sending the second signal, and/or, determines a time length for performing channel detection before sending the second signal.
  • the first signal includes a radio resource control message; if the first information is not included in the radio resource control message, the terminal device does not perform channel detection before sending the second signal, or, in the radio resource control message In the case where the first information is included, the terminal device does not perform channel detection before sending the second signal.
  • the first information is cell-specific or device-specific; the first information is for at least one of the following: system, cell group, cell, carrier, channel group, partial bandwidth, channel, beam, physical channel/signal , Data carried by physical channels/signals.
  • the first information is used to indicate a channel access mode and/or a channel access type.
  • the radio resource control message when the working frequency band is an unlicensed frequency band, can include the first information; when the working frequency band is a licensed frequency band, the radio resource control message cannot include the first information.
  • the first signal includes an SSB and an RRC message, where the SSB is used by the terminal device to determine that the operating frequency band is an unlicensed frequency band, or the SSB is used by the terminal device to determine that the operating frequency band is a licensed frequency band.
  • the RRC message includes second information, where the second information is used to indicate the working frequency band; or, the first signal is further used to indicate the working frequency band.
  • the terminal device when the first signal indicates that the operating frequency band is a licensed frequency band, the terminal device does not perform channel detection before sending the second signal.
  • the terminal device when the first signal indicates that the operating frequency band is an unlicensed frequency band, the terminal device performs channel detection before sending the second signal, and/or determines the length of time for channel detection before sending the second signal .
  • the channel access mode includes a mode without channel detection, and/or the channel access mode further includes a dynamic channel access mode and/or a semi-static channel access mode.
  • the first signal is used to indicate the channel access mode; in the case where the first signal indicates that the channel access mode is not to perform channel detection, the radio resource control message can include a signal used to indicate the working frequency band.
  • the second information or, when the first signal indicates that the channel access mode is not to perform no channel detection, the radio resource control message cannot include the second information for indicating the working frequency band.
  • the channel access type includes a type without channel detection, and/or the channel access type further includes a type with channel detection.
  • the uplink resource is configured by an RRC message, or the uplink resource is scheduled by downlink control information or random access response, and the DCI or RAR does not include an information field for indicating a channel access type.
  • the terminal device uses a predefined or preconfigured channel access type to send the second signal; wherein the predefined or preconfigured channel access type is used to send the second signal.
  • the channel access type is a type that does not perform channel detection, or the predefined or preconfigured channel access type is a type that performs channel detection.
  • the predefined or preconfigured channel access type is for at least one of the following: system, cell group, cell, carrier, channel group, fractional bandwidth, channel, beam, physical channel/signal, physical channel/signal carried data.
  • the uplink resource is configured by the RRC message, and in the case where the first information does not indicate that channel detection is not to be performed, the terminal device sends the second signal by using the channel access type indicated by the third information.
  • the third information is for at least one of the following: system, cell group, cell, carrier, channel group, partial bandwidth, channel, beam, physical channel/signal, data carried by the physical channel/signal.
  • the uplink resource is configured by an RRC message, or the uplink resource is scheduled by downlink control information or random access response, and the DCI or RAR does not include an information field for indicating a channel access type.
  • the first information is used to indicate the channel access type, and the terminal device sends the second signal by using the channel access type indicated by the first information.
  • the second signal is a physical uplink shared channel
  • the first information or the third information is included in the configuration information of the configuration grant.
  • the second signal is a sounding reference signal
  • the first information or the third information is included in the configuration information of the sounding reference signal.
  • the second signal is a physical random access channel
  • the first information or the third information is included in the configuration information of the physical random access channel.
  • the second signal is a physical uplink control channel
  • the first information or the third information is included in the configuration information of the PUCCH or the configuration information of the scheduling request or the configuration information of the channel state information.
  • uplink resources are scheduled by DCI or RAR, and in the case that the first signal indicates that channel detection is not to be performed, the terminal device determines that the DCI or RAR used to schedule uplink resources does not include a channel indicating channel access type. information field, and the terminal device does not perform channel detection before sending the second signal.
  • the uplink resources are scheduled by the DCI or the RAR.
  • the terminal device further determines, according to the fourth information, the DCI or RAR for scheduling the uplink resources.
  • the information field indicating the channel access type, and the fourth information is at least used to indicate the channel access type that can be indicated by DCI or RAR.
  • the terminal device sends the second signal by using the channel access type indicated by DCI or RAR, or, in the case that the fourth information indicates a channel access type, using the channel access type indicated by the fourth information input type to send the second signal.
  • the apparatus 1700 for sending an uplink signal may further include other components or modules.
  • the specific content of these components or modules reference may be made to the related art.
  • FIG. 17 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc. The implementation of this application does not limit this.
  • the terminal device receives the first signal sent by the network device, and the first signal is at least used by the terminal device to determine whether to perform channel detection and/or how to perform channel detection before sending the second signal; and the terminal The device sends the second signal to the network device using the uplink resource.
  • NR can be supported for uplink transmission on higher frequencies
  • the network device can flexibly control whether the terminal device performs channel detection or not and/or how the terminal device performs channel detection, thereby being applicable to a variety of scenarios, and Unnecessary channel detection can be avoided as much as possible, thereby saving the power of terminal equipment and improving resource utilization and throughput.
  • An embodiment of the present application provides an apparatus for receiving an uplink signal.
  • the apparatus may be, for example, a network device, or may be one or some components or components configured in the network device, and the same contents as those of the first and second aspects will not be repeated.
  • FIG. 19 is a schematic diagram of an apparatus for receiving an uplink signal according to an embodiment of the present application. As shown in FIG. 19, the apparatus 1900 for receiving an uplink signal includes:
  • a sending unit 1901 which sends a first signal to a terminal device, the first signal is at least used by the terminal device to determine whether and/or how to perform channel detection before sending the second signal;
  • a receiving unit 1902 which receives the second signal sent by the terminal device using uplink resources.
  • the apparatus 1900 for receiving an uplink signal may further include other components or modules.
  • the specific content of these components or modules reference may be made to the related art.
  • FIG. 19 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used.
  • the above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc. The implementation of this application does not limit this.
  • the terminal device receives the first signal sent by the network device, and the first signal is at least used by the terminal device to determine whether to perform channel detection and/or how to perform channel detection before sending the second signal; and the terminal The device sends the second signal to the network device using the uplink resource.
  • NR can be supported for uplink transmission on higher frequencies
  • the network device can flexibly control whether the terminal device performs channel detection or not and/or how the terminal device performs channel detection, thereby being applicable to a variety of scenarios, and Unnecessary channel detection can be avoided as much as possible, thereby saving the power of terminal equipment and improving resource utilization and throughput.
  • An embodiment of the present application further provides a communication system, and reference may be made to FIG. 1 , and the same content as the embodiments of the first aspect to the fourth aspect will not be repeated.
  • the communication system may include:
  • a terminal device that receives a first signal, the first signal at least used by the terminal device to determine whether and/or how to perform channel detection before sending a second signal; and using uplink resources to send the second signal ;as well as
  • a network device that transmits the first signal and receives the second signal.
  • the embodiment of the present application also provides a network device, which may be, for example, a base station, but the present application is not limited to this, and may also be other network devices.
  • a network device which may be, for example, a base station, but the present application is not limited to this, and may also be other network devices.
  • FIG. 20 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • the network device 2000 may include: a processor 2010 (such as a central processing unit CPU) and a memory 2020; the memory 2020 is coupled to the processor 2010.
  • the memory 2020 can store various data; in addition, a program 2030 for information processing is also stored, and the program 2030 is executed under the control of the processor 2010 .
  • the processor 2010 may be configured to execute a program to implement the method for receiving an uplink signal according to the embodiment of the second aspect.
  • the processor 2010 may be configured to control the sending of a first signal to a terminal device, the first signal being at least used by the terminal device to determine whether to perform channel detection and/or how to perform a channel before sending the second signal detecting; and receiving the second signal sent by the terminal device using uplink resources.
  • the network device 2000 may further include: a transceiver 2040, an antenna 2050, etc.; wherein, the functions of the above components are similar to those in the prior art, and details are not repeated here. It is worth noting that the network device 2000 does not necessarily include all the components shown in FIG. 20 ; in addition, the network device 2000 may also include components not shown in FIG. 20 , and reference may be made to the prior art.
  • the embodiment of the present application also provides a terminal device, but the present application is not limited to this, and may also be other devices.
  • FIG. 21 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • the terminal device 2100 may include a processor 2110 and a memory 2120 ; the memory 2120 stores data and programs, and is coupled to the processor 2110 .
  • this figure is exemplary; other types of structures may be used in addition to or in place of this structure to implement telecommunication functions or other functions.
  • the processor 2110 may be configured to execute a program to implement the method for sending an uplink signal according to the embodiment of the first aspect.
  • the processor 2110 may be configured to perform the following control: receiving a first signal sent by the network device, where the first signal is at least used by the terminal device to determine whether to perform channel detection and/or how to perform channel detection before sending the second signal ; and sending the second signal to the network device using uplink resources.
  • the terminal device 2100 may further include: a communication module 2130 , an input unit 2140 , a display 2150 , and a power supply 2160 .
  • the functions of the above components are similar to those in the prior art, and details are not repeated here. It is worth noting that the terminal device 2100 does not necessarily include all the components shown in FIG. 21, and the above components are not required; in addition, the terminal device 2100 may also include components not shown in FIG. There is technology.
  • An embodiment of the present application further provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the method for sending an uplink signal according to the embodiment of the first aspect.
  • An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the method for sending an uplink signal according to the embodiment of the first aspect.
  • An embodiment of the present application further provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the method for receiving an uplink signal according to the embodiment of the second aspect.
  • An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the method for receiving an uplink signal according to the embodiment of the second aspect.
  • the apparatuses and methods above in the present application may be implemented by hardware, or may be implemented by hardware combined with software.
  • the present application relates to a computer-readable program that, when executed by logic components, enables the logic components to implement the above-described apparatus or constituent components, or causes the logic components to implement the above-described various methods or steps.
  • the present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like.
  • the method/apparatus described in conjunction with the embodiments of this application may be directly embodied as hardware, a software module executed by a processor, or a combination of the two.
  • one or more of the functional block diagrams shown in the figures and/or one or more combinations of the functional block diagrams may correspond to either software modules or hardware modules of the computer program flow.
  • These software modules may respectively correspond to the various steps shown in the figure.
  • These hardware modules can be implemented by, for example, solidifying these software modules using a Field Programmable Gate Array (FPGA).
  • FPGA Field Programmable Gate Array
  • a software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a storage medium can be coupled to the processor, such that the processor can read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor.
  • the processor and storage medium may reside in an ASIC.
  • the software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • the functional blocks and/or one or more combinations of the functional blocks described in the figures can be implemented as a general-purpose processor, a digital signal processor (DSP) for performing the functions described in this application ), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof.
  • DSP digital signal processor
  • ASICs Application Specific Integrated Circuits
  • FPGAs Field Programmable Gate Arrays
  • One or more of the functional blocks and/or one or more combinations of the functional blocks described with respect to the figures can also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors processor, one or more microprocessors in communication with the DSP, or any other such configuration.
  • a method for sending an uplink signal comprising:
  • the terminal device receives a first signal sent by the network device, the first signal is at least used by the terminal device to determine whether and/or how to perform channel detection before sending the second signal;
  • the terminal device sends the second signal to the network device using the uplink resource.
  • Supplement 2 The method according to Supplement 1, wherein the first signal includes at least one of the following: a synchronization signal block (SSB), a radio resource control (RRC) message, a medium access control (MAC) control element ( CE), Downlink Control Information (DCI), Random Access Response (RAR).
  • SSB synchronization signal block
  • RRC radio resource control
  • MAC medium access control
  • CE Medium access control
  • DCI Downlink Control Information
  • RAR Random Access Response
  • Supplement 3 The method according to Supplement 1, wherein the uplink resource is on a licensed frequency band, or the uplink resource is on an unlicensed frequency band.
  • determining, by the terminal device whether to perform channel detection before sending the second signal includes: the terminal device determining not to perform channel detection before sending the second signal. Perform channel detection, or the terminal device determines to perform channel detection before sending the second signal.
  • determining, by the terminal device, how to perform channel detection before sending the second signal includes: determining, by the terminal device, to perform channel detection before sending the second signal and/or the terminal device determines the channel access type of the channel detection performed before sending the second signal; and/or the terminal device determines the channel performed before sending the second signal Detected channel access priority.
  • Supplement 6 The method according to any one of Supplementary Notes 1 to 5, wherein the first signal is used to instruct the terminal device to perform at least one of the following channel detection before sending the second signal: channel detection The value of the random number used for channel detection; the value of the first parameter used to generate the random number used for channel detection; the first parameter used to generate the random number used for channel detection range of values; channel access type; channel access priority; channel access mode.
  • Supplement 7 The method according to any one of Supplements 1 to 5, wherein the first signal is used to indicate a channel access mode and/or a channel access type and/or a working frequency band.
  • Supplement 8 The method according to any one of Supplementary Notes 1 to 7, wherein the first signal is a synchronization signal block (SSB); and the terminal device is based on at least one of the following of the synchronization signal block (SSB). - Determining whether and/or how channel detection is to be performed prior to sending the second signal:
  • SSB synchronization signal block
  • SSB synchronization signal block
  • SSB synchronization signal block
  • PSS primary synchronization signals
  • SSB synchronization signal block
  • SSS secondary synchronization signals
  • SSB synchronization signal block
  • DMRS demodulation reference signals
  • PBCH physical broadcast channel
  • SSB synchronization signal block
  • DMRS demodulation reference signal
  • PBCH physical broadcast channel
  • SSB synchronization signal block
  • PBCH physical broadcast channel
  • SSB synchronization signal block
  • PBCH physical broadcast channel
  • SSB synchronization signal block
  • Supplement 9 The method according to any one of Supplements 1 to 7, wherein the first signal includes the Radio Resource Control (RRC) message or MAC CE or DCI;
  • RRC Radio Resource Control
  • the first information included in the control (RRC) message determines not to perform channel detection before transmitting the second signal; or,
  • the terminal device determines, according to the first information included in the Radio Resource Control (RRC) message, to perform channel detection before sending the second signal, and/or determines whether to perform channel detection before sending the second signal. length of time.
  • RRC Radio Resource Control
  • Supplement 10 The method according to any one of Supplements 1 to 7, wherein the first signal includes the radio resource control (RRC) message; the radio resource control (RRC) message does not include the first signal
  • the terminal device does not perform channel detection before sending the second signal, or, in the case that the radio resource control (RRC) message includes the first information, the terminal device is sending the second signal. No channel detection is performed before the second signal.
  • Supplement 11 The method according to Supplement 9 or 10, wherein the first information is cell-specific (cell-specific) or device-specific (UE-specific).
  • Supplement 12 The method according to any one of Supplementary Notes 9 to 11, wherein the first information is for at least one of the following: system, cell group, cell, carrier, channel group, partial bandwidth (BWP), channel , beam, physical channel/signal, data carried by physical channel/signal.
  • BWP partial bandwidth
  • Supplementary Note 13 The method according to any one of Supplementary Notes 9 to 12, wherein, when the working frequency band is an unlicensed frequency band, the radio resource control (RRC) message can include the first information; When the working frequency band is a licensed frequency band, the radio resource control (RRC) message cannot include the first information.
  • RRC radio resource control
  • Supplement 14 The method according to any one of Supplements 9 to 13, wherein the first information is used to indicate a channel access mode and/or a channel access type.
  • Supplement 15 The method according to Supplement 13 or 14, wherein the first signal includes an SSB and the RRC message, and the SSB is used by the terminal device to determine that the operating frequency band is an unlicensed frequency band, or , the SSB is used by the terminal device to determine that the operating frequency band is a licensed frequency band.
  • Supplement 16 The method according to Supplement 13 or 14, wherein the RRC message includes second information, where the second information is used to indicate a working frequency band.
  • Supplement 17 The method according to Supplement 7, wherein, in the case that the first signal indicates that the operating frequency band is a licensed frequency band, the terminal device does not perform channel detection before sending the second signal; or,
  • the terminal device performs channel detection before sending the second signal, and/or determines to perform channel detection before sending the second signal The length of time to detect.
  • Supplement 18 The method according to Supplement 7 or 14, wherein the channel access mode includes a mode without channel detection.
  • the Radio Resource Control (RRC) message can include second information for indicating the working frequency band, or, in the case where the first signal indicates that the channel access mode is not to perform no channel detection, the RRC The (RRC) message cannot include the second information for indicating the working frequency band.
  • Supplement 20 The method according to Supplement 18, wherein the channel access mode further includes a dynamic channel access mode and/or a semi-static channel access mode.
  • Supplement 21 The method according to Supplement 7 or 14, wherein the channel access type includes a type that does not perform channel detection.
  • Supplementary note 22 The method according to supplementary note 21, wherein the type without channel detection is used for initializing an occupied channel and/or for a shared channel.
  • Supplementary note 23 The method according to supplementary note 21, wherein the channel access type further includes a channel detection type.
  • Supplement 24 The method according to Supplement 14, wherein the uplink resource is configured by an RRC message, or the uplink resource (or the second signal) is downlink control information (DCI) or random access
  • DCI downlink control information
  • RAR random access
  • the DCI or RAR does not include an information field for indicating the channel access type
  • the terminal device sends the second signal by using a predefined or preconfigured channel access type.
  • Supplement 25 The method according to Supplement 24, wherein the predefined or preconfigured channel access type is a type that does not perform channel detection, or the predefined or preconfigured channel access type is The type of channel detection performed.
  • Supplement 26 The method according to Supplement 24, wherein the predefined or preconfigured channel access type is for at least one of the following: system, cell group, cell, carrier, channel group, partial bandwidth (BWP) , channel, beam, physical channel/signal, data carried by physical channel/signal.
  • BWP partial bandwidth
  • Supplement 27 The method according to Supplement 14, wherein the uplink resource is configured by an RRC message, and when the first information does not indicate that channel detection is not to be performed, the terminal device uses the third information to indicate the channel access type to send the second signal.
  • Supplement 28 The method according to Supplement 27, wherein the third information is for at least one of the following: system, cell group, cell, carrier, channel group, partial bandwidth (BWP), channel, beam, physical channel /signal, physical channel/data carried by the signal.
  • BWP partial bandwidth
  • Supplement 29 The method according to Supplement 14, wherein the uplink resource is configured by an RRC message, or the uplink resource (or the second signal) is downlink control information (DCI) or random access Response (RAR) scheduled and the DCI or RAR does not include an information field for indicating the channel access type;
  • DCI downlink control information
  • RAR random access Response
  • the first information is used to indicate a channel access type, and the terminal device sends the second signal by using the channel access type indicated by the first information.
  • Supplement 30 The method according to Supplement 27 or 28, wherein the second signal is a physical uplink shared channel (PUSCH), and the first information or the third information is included in the configuration grant (CG) configuration information.
  • PUSCH physical uplink shared channel
  • CG configuration grant
  • Supplement 31 The method according to Supplement 27 or 28, wherein the second signal is a sounding reference signal (SRS), and the first information or the third information is included in the sounding reference signal (SRS). ) in the configuration information.
  • SRS sounding reference signal
  • Supplement 32 The method according to Supplement 27 or 28, wherein the second signal is a physical random access channel (PRACH), and the first information or the third information is included in the physical random access channel.
  • PRACH physical random access channel
  • the first information or the third information is included in the physical random access channel.
  • PRACH configuration information of the incoming channel
  • Supplement 33 The method according to Supplement 27 or 28, wherein the second signal is a physical uplink control channel (PUCCH), and the first information or the third information includes configuration information on the PUCCH Or in the configuration information of the scheduling request (SR) or in the configuration information of the channel state information (CSI).
  • PUCCH physical uplink control channel
  • SR scheduling request
  • CSI channel state information
  • Supplement 34 The method according to Supplement 1, wherein the uplink resource (or the second signal) is scheduled by DCI or RAR, and in the case that the first signal indicates not to perform channel detection, the The terminal device determines that the DCI or RAR used for scheduling the uplink resource does not include an information field for indicating a channel access type, and the terminal device does not perform channel detection before sending the second signal.
  • Supplement 35 The method according to Supplement 1, wherein the uplink resource (or the second signal) is scheduled by DCI or RAR, and if the first signal does not indicate that channel detection is not to be performed, the The terminal device also determines, according to fourth information, an information field included in the DCI or RAR used to schedule the uplink resources and used to indicate the channel access type, where the fourth information is at least used to indicate that the DCI or RAR can indicate channel access type.
  • Supplement 36 The method according to Supplement 35, wherein the terminal device uses the channel access type indicated by the DCI or RAR to send the second signal, or the fourth information indicates a channel
  • the second signal is sent by using the channel access type indicated by the fourth information.
  • Supplement 37 The method according to any one of Supplementary Notes 1 to 36, wherein the method further comprises:
  • the terminal device sends a measurement result to the network device; the measurement result is for at least one of the following: a cell, a cell group, a channel, a channel group, a partial bandwidth (BWP), and a beam.
  • the measurement result is for at least one of the following: a cell, a cell group, a channel, a channel group, a partial bandwidth (BWP), and a beam.
  • Supplement 38 The method according to Supplement 37, wherein the measurement result includes at least one of the following: received signal strength, channel occupancy information, information requiring channel detection, and information requiring no channel detection.
  • Supplement 39 The method according to Supplement 37 or 38, wherein the terminal device sends the measurement result when a certain condition is met; the condition includes: the received signal strength and/or the channel occupancy is higher than the first A threshold, and/or the received signal strength and/or channel occupancy, is below a second threshold.
  • a method for receiving an uplink signal comprising:
  • the network device sends a first signal to the terminal device, the first signal is at least used by the terminal device to determine whether and/or how to perform channel detection before sending the second signal;
  • the network device receives the second signal sent by the terminal device using uplink resources.
  • a terminal device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the uplink according to any one of Supplementary Notes 1 to 39 The method of sending the signal.
  • a network device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the method for receiving an uplink signal as described in Supplement 40.

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Abstract

本申请实施例提供一种上行信号的发送和接收方法以及装置；所述发送方法包括：终端设备接收网络设备发送的第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及所述终端设备使用上行资源向所述网络设备发送所述第二信号。

Description

上行信号的发送和接收方法以及装置 技术领域
本申请实施例涉及通信技术领域。
背景技术
目前，3GPP已经基本完成了新无线(NR，New Radio)Rel-15和Rel-16的标准化工作。NR系统可以支持在以下频率范围(包括FR1和FR2)工作。
Figure PCTCN2020107576-appb-000001
NR中引入了部分带宽(BWP，BandWidth Part)的概念，并且支持多种子载波间隔(SCS，Sub-Carrier Spacing)。在一个下行/上行(DL/UL)载波上，网络设备(例如基站)可以为终端设备预先配置一个或多个下行/上行(DL/UL)BWP并且针对各BWP分别配置SCS。针对不同的BWP可以配置不同的SCS，SCS可以是15kHz、30kHz、60kHz、120kHz。
终端设备可以使用激活的BWP(active BWP)进行工作，并且可以根据信令，例如无线资源控制(RRC，Radio Resource Control)消息、下行控制信息(DCI，Downlink Control Information)，或者根据定时器状态等切换BWP。
其中，针对UL，一个UL BWP上的物理上行共享信道(PUSCH，Physical Uplink Shared Channel)、物理上行控制信道(PUCCH，physical Uplink Control Channel)、探测参考信号(SRS，Sounding Reference Signal)的SCS即该UL BWP的SCS，而物理随机接入信道(PRACH，Physical Random Access Channel)的SCS则可以与该UL BWP的SCS相同或不同；PRACH的SCS是网络设备(例如基站)另外配置的。
应该注意，上面对技术背景的介绍只是为了方便对本申请的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本申请的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
发明人发现：3GPP将研究如何支持NR在更高的频率(即高于52.6GHz的频率，例如52.6-71GHz范围内的频率)上工作。但是，目前还没有相应的方法(包括上行信号的发送和接收方法)支持NR在更高的频率上工作。
上述更高的频率可能是非授权频谱(或者称为共享频谱)，也可能是授权频谱；另一方面，针对非授权频谱，各个国家或地区关于频谱使用的监管要求可能不同，例如有的国家或地区强制进行信道检测，例如称为LBT(Listen Before Talk)或CCA(Clear Channel Assessment)，而有的国家或地区则对此不作要求。并且，在一些场景下，例如在可以通过某种方式保证没有其他技术或系统或者设备共存的情况下，使用LBT可能会导致不必要的耗电，并且降低资源利用率和系统吞吐量。
也就是说，为了支持NR在上述更高的频率上工作，上行信号的发送和接收方法需要灵活地适用于不同的场景，并且，为了节省终端设备的电量并提高资源利用率和吞吐量，需要尽可能避免终端设备进行不必要的信道检测。
针对上述问题的至少之一，本申请实施例提供一种上行信号的发送和接收方法及装置。
根据本申请实施例的一个方面，提供一种上行信号的发送方法，包括：
终端设备接收网络设备发送的第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及
所述终端设备使用上行资源向所述网络设备发送所述第二信号。
根据本申请实施例的另一个方面，提供一种上行信号的发送装置，包括：
接收单元，其接收网络设备发送的第一信号，所述第一信号至少用于终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及
发送单元，其使用上行资源向所述网络设备发送所述第二信号。
根据本申请实施例的另一个方面，提供一种上行信号的接收方法，包括：
网络设备向终端设备发送第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及
所述网络设备接收所述终端设备使用上行资源发送的所述第二信号。
根据本申请实施例的另一个方面，提供一种上行信号的接收装置，包括：
发送单元，其向终端设备发送第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及
接收单元，其接收所述终端设备使用上行资源发送的所述第二信号。
本申请实施例的有益效果之一在于：终端设备接收网络设备发送的第一信号，所述第一信号至少用于终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及终端设备使用上行资源向网络设备发送第二信号。由此，能够支持NR在更高的频率上进行上行传输，网络设备能够灵活地控制终端设备进行或不进行信道检测和/或终端设备如何进行信道检测，从而适用于多种多样的场景，并且能够尽可能避免不必要的信道检测，从而节省终端设备的电量并提高资源利用率和吞吐量。
参照后文的说明和附图，详细公开了本申请的特定实施方式，指明了本申请的原理可以被采用的方式。应该理解，本申请的实施方式在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内，本申请的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本申请实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
图1是本申请实施例的通信系统的示意图；
图2是本申请实施例的上行信号的发送方法的一示意图；
图3是本申请实施例的终端设备根据SSB的频域位置确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测的一示例图；
图4是本申请实施例的终端设备根据SSB与RMSI的相对位置确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测的一示例图；
图5是本申请实施例的模式1中类型1的一示例图；
图6是本申请实施例的模式1中类型1的另一示例图；
图7是本申请实施例的模式1中类型1的另一示例图；
图8是本申请实施例的模式1中类型2的一示例图；
图9是本申请实施例的模式1中类型2的另一示例图；
图10是本申请实施例的模式1中类型2的另一示例图；
图11是本申请实施例的模式1中类型2的另一示例图；
图12是本申请实施例的模式2中类型1的一示例图；
图13是本申请实施例的模式2中类型2的一示例图；
图14是本申请实施例的模式2中类型2的另一示例图；
图15是本申请实施例的模式2中类型2的另一示例图；
图16是本申请实施例的终端设备的发送上行信号的一示例图；
图17是本申请实施例的上行信号的接收方法的一示意图；
图18是本申请实施例的上行信号的发送装置的一示意图；
图19是本申请实施例的上行信号的接收装置的一示意图；
图20是本申请实施例的网络设备的示意图；
图21是本申请实施例的终端设备的示意图。
具体实施方式
参照附图，通过下面的说明书，本申请的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本申请的特定实施方式，其表明了其中可以采用本申请的原则的部分实施方式，应了解的是，本申请不限于所描述的实施方式，相反，本申请包括落入所附权利要求的范围内的全部修改、变型以及等同物。
在本申请实施例中，术语“第一”、“第二”等用于对不同元素从称谓上进行区分，但并不表示这些元素的空间排列或时间顺序等，这些元素不应被这些术语所限制。术语“和/或”包括相关联列出的术语的一种或多个中的任何一个和所有组合。术语“包含”、“包括”、“具有”等是指所陈述的特征、元素、元件或组件的存在，但并不排除存在或添加一个或多个其他特征、元素、元件或组件。
在本申请实施例中，单数形式“一”、“该”等包括复数形式，应广义地理解为“一种”或“一类”而并不是限定为“一个”的含义；此外术语“所述”应理解为既包括单数形式也包括复数形式，除非上下文另外明确指出。此外术语“根据”应理解为“至少部分根据……”，术语“基于”应理解为“至少部分基于……”，除非上下文另外明确指出。
在本申请实施例中，术语“通信网络”或“无线通信网络”可以指符合如下任意通信标准的网络，例如长期演进(LTE，Long Term Evolution)、增强的长期演进(LTE-A，LTE-Advanced)、宽带码分多址接入(WCDMA，Wideband Code Division Multiple Access)、 高速报文接入(HSPA，High-Speed Packet Access)等等。
并且，通信系统中设备之间的通信可以根据任意阶段的通信协议进行，例如可以包括但不限于如下通信协议：1G(generation)、2G、2.5G、2.75G、3G、4G、4.5G以及5G、新无线(NR，New Radio)等等，和/或其他目前已知或未来将被开发的通信协议。
在本申请实施例中，术语“网络设备”例如是指通信系统中将终端设备接入通信网络并为该终端设备提供服务的设备。网络设备可以包括但不限于如下设备：基站(BS，Base Station)、接入点(AP、Access Point)、发送接收点(TRP，Transmission Reception Point)、广播发射机、移动管理实体(MME、Mobile Management Entity)、网关、服务器、无线网络控制器(RNC，Radio Network Controller)、基站控制器(BSC，Base Station Controller)等等。
其中，基站可以包括但不限于：节点B(NodeB或NB)、演进节点B(eNodeB或eNB)以及5G基站(gNB)，等等，此外还可包括远端无线头(RRH，Remote Radio Head)、远端无线单元(RRU，Remote Radio Unit)、中继(relay)或者低功率节点(例如femeto、pico等等)。并且术语“基站”可以包括它们的一些或所有功能，每个基站可以对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域，这取决于使用该术语的上下文。在不引起混淆的情况下，术语“小区”和“基站”可以互换。
在本申请实施例中，术语“用户设备”(UE，User Equipment)或者“终端设备”(TE，Terminal Equipment或Terminal Device)例如是指通过网络设备接入通信网络并接收网络服务的设备。终端设备可以是固定的或移动的，并且也可以称为移动台(MS，Mobile Station)、终端、用户台(SS，Subscriber Station)、接入终端(AT，Access Terminal)、站，等等。
其中，终端设备可以包括但不限于如下设备：蜂窝电话(Cellular Phone)、个人数字助理(PDA，Personal Digital Assistant)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话、智能手机、智能手表、数字相机，等等。
再例如，在物联网(IoT，Internet of Things)等场景下，终端设备还可以是进行监控或测量的机器或装置，例如可以包括但不限于：机器类通信(MTC，Machine Type Communication)终端、车载通信终端、设备到设备(D2D，Device to Device)终端、机器到机器(M2M，Machine to Machine)终端，等等。
此外，术语“网络侧”或“网络设备侧”是指网络的一侧，可以是某一基站，也可以包括如上的一个或多个网络设备。术语“用户侧”或“终端侧”或“终端设备侧”是指用户或终 端的一侧，可以是某一UE，也可以包括如上的一个或多个终端设备。本文在没有特别指出的情况下，“设备”可以指网络设备，也可以指终端设备。
以下通过示例对本申请实施例的场景进行说明，但本申请不限于此。
图1是本申请实施例的通信系统的示意图，示意性说明了以终端设备和网络设备为例的情况，如图1所示，通信系统100可以包括网络设备101和终端设备102、103。为简单起见，图1仅以两个终端设备和一个网络设备为例进行说明，但本申请实施例不限于此。
在本申请实施例中，网络设备101和终端设备102、103之间可以进行现有的业务或者未来可实施的业务发送。例如，这些业务可以包括但不限于：增强的移动宽带(eMBB，enhanced Mobile Broadband)、大规模机器类型通信(mMTC，massive Machine Type Communication)和高可靠低时延通信(URLLC，Ultra-Reliable and Low-Latency Communication)，等等。
值得注意的是，图1示出了两个终端设备102、103均处于网络设备101的覆盖范围内，但本申请不限于此。两个终端设备102、103可以均不在网络设备101的覆盖范围内，或者一个终端设备102在网络设备101的覆盖范围之内而另一个终端设备103在网络设备101的覆盖范围之外。
在以下的说明中，在不引起混淆的情况下，术语“上行控制信号”和“上行控制信息(UCI，Uplink Control Information)”或“物理上行控制信道(PUCCH，Physical Uplink Control Channel)”或“PUSCH传输(PUSCH transmission)”可以互换，术语“上行数据信号”和“上行数据信息”或“物理上行共享信道(PUSCH，Physical Uplink Shared Channel)”或“PUCCH传输(PUSCH transmission)可以互换；
术语“随机接入信道(RACH，Random Access Channel)”和“物理随机接入信道(PRACH,Physical Random Access Channel)”或“前导(preamble)”或“PRACH传输(PUSCH transmission)”可以互换，术语“SRS”和“SRS传输(SRS transmission)”可以互换；
术语“下行控制信号”和“下行控制信息(DCI，Downlink Control Information)”或“物理下行控制信道(PDCCH，Physical Downlink Control Channel)”可以互换，术语“下行数据信号”和“下行数据信息”或“物理下行共享信道(PDSCH，Physical Downlink Shared Channel)”可以互换。
另外，发送或接收PUSCH可以理解为发送或接收由PUSCH承载的上行数据信息， 发送或接收PUCCH可以理解为发送或接收由PUCCH承载的上行控制信息，发送或接收PRACH可以理解为发送或接收由PRACH承载的preamble；上行信号可以包括上行数据信号和/或上行控制信号和/或上行参考信号(例如，DMRS,PT-RS,SRS)和/或随机接入信道等，也可以称为上行传输(UL transmission)或上行信息或上行信道。在上行资源上发送上行信号可以理解为使用该上行资源发送该上行信号。
在本申请实施例中，高层信令例如可以是无线资源控制(RRC)信令或介质访问控制(MAC，Medium Access Control)信令。其中，RRC信令例如是RRC消息(RRC message)，MAC信令例如是MAC CE(MAC Control Element)。但本申请不限于此。其中，基站发送的RRC消息例如包括广播的RRC消息和/或专用的RRC消息。
广播的RRC消息例如是基站周期性广播的RRC消息，例如BCCH-BCH-Message(class)包括的RRC消息，例如主信息块(MIB，Main Information Block)等；或者，BCCH-DL-SCH-Message(class)包括的RRC消息，例如SIB1(或者称为RMSI)、SystemInformation等。
专用的RRC消息例如是基站发送给某一特定UE的RRC消息，例如DL-CCCH-Message(class)包括的RRC消息，例如RRCSetup等，或者，DL-DCCH-Message(class)中包括的RRC消息，例如，RRCReconfiguration，RRCResume，RRCReestablishment，SystemInformation等。
一个RRC消息中可以包括一个或多个RRC IE(RRC information element)或一个或多个信息域(field)，而一个RRC IE中还可以包括一个或多个其他的RRC IE或信息域。
在本申请实施例中，物理层信令例如可以是DCI(Downlink Control Information)或UCI(Uplink Control Information)。
第一方面的实施例
本申请实施例提供一种上行信号的发送方法，从终端设备进行说明。图2是本申请实施例的上行信号的发送方法的一示意图，如图2所示，该方法包括：
201，终端设备接收网络设备发送的第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及
202，所述终端设备使用上行资源向所述网络设备发送所述第二信号。
值得注意的是，以上附图2仅对本申请实施例进行了示意性说明，但本申请不限于 此。例如可以适当地调整各个操作之间的执行顺序，此外还可以增加其他的一些操作或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图2的记载。
在一些实施例中，第一信号包括如下至少之一：同步信号块(SSB，Synchronization Signal Block)、无线资源控制(RRC)消息、介质访问控制(MAC)控制元素(CE)、下行控制信息(DCI)、随机接入响应(RAR)；但本申请不限于此。当第一信号包括如上信息的两个或以上时，各部分可以同时发送，也可以不同时发送。
在一些实施例中，终端设备确定在发送第二信号之前是否进行信道检测，包括：终端设备确定在发送第二信号之前不进行信道检测，或者，终端设备确定在发送第二信号之前进行信道检测。
在一些实施例中，终端设备确定在发送第二信号之前如何进行信道检测，包括：终端设备确定在发送第二信号之前进行的信道检测的时间长度；和/或，终端设备确定在发送第二信号之前进行的信道检测的信道接入类型；和/或终端设备确定在发送第二信号之前进行的信道检测的信道接入优先级。其中，终端设备确定在发送第二信号之前进行的信道检测的时间长度，可以包括：终端设备确定或生成用于进行该信道检测的随机数的取值。
在一些实施例中，第一信号可以用于指示终端设备在发送第二信号之前进行信道检测，或者，第一信号也可以用于指示终端设备在发送第二信号之前不进行信道检测。
在一些实施例中，第一信号可以用于指示终端设备在发送第二信号之前如何进行信道检测。例如，可以用于指示终端设备在发送第二信号之前进行的信道检测的以下至少之一：信道检测的时间长度；用于进行信道检测的随机数的取值；用于生成用于进行信道检测的随机数的第一参数(例如竞争窗CW)的取值；用于生成用于进行信道检测的随机数的第一参数的取值范围；信道接入类型；信道接入优先级；信道接入模式。
在一些实施例中，第一信号用于指示工作频段。
例如，终端设备根据指示的随机数的数值即可确定信道检测的时间长度；或者，根据指示的CW的值生成随机数，进而确定信道检测的时间长度；或者，根据指示的CW的取值范围，采用其中一个CW值生成随机数，进而确定信道检测的时间长度。
再例如，终端设备根据第一信号的指示可以确定信道接入类型；或者，可以根据指示确定信道接入优先级；或者，可以根据指示确定信道接入模式。
在一些实施例中，终端设备使用上行资源向网络设备发送第二信号，包括：在终端 设备确定在发送所述第二信号不进行信道检测的情况下，终端设备不进行信道检测即发送所述第二信号，否则，终端设备在发送所述第二信号之前进行信道检测，且在检测到信道为空闲的情况下才发送所述第二信号。其中，所述上行资源可以在授权频段上，所述上行资源也可以在非授权频段上。
在一些实施例中，第一信号为同步信号块(SSB)；终端设备根据同步信号块(SSB)的至少如下之一确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测：
同步信号块(SSB)的频域位置；
同步信号块(SSB)的时域位置；
同步信号块(SSB)的时频结构；
同步信号块(SSB)中主同步信号(PSS，Primary Synchronization Signal)的序列；
同步信号块(SSB)中辅同步信号(SSS，Secondary Synchronization Signal)的序列；
同步信号块(SSB)中的物理广播信道(PBCH，Physical Broadcast Channel)的解调参考信号(DMRS，De-Modulation Reference Signal)的序列；
同步信号块(SSB)中的物理广播信道(PBCH)的解调参考信号(DMRS)的频域位置；
同步信号块(SSB)中的物理广播信道(PBCH)的加扰序列；
同步信号块(SSB)的物理广播信道(PBCH)的负载；
同步信号块(SSB)与剩余最小系统信息(RMSI，Remaining Minimum System Information)的相对位置。
在一些实施例中，SSB是小区定义SSB(cell-defining SSB)，本申请不限于此。
在一些实施例中，终端设备可以根据SSB的频域位置确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测。
图3是本申请实施例的终端设备根据SSB的频域位置确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测的一示例图。例如，可以预定义两组同步栅格(sync raster)，如图3所示。
终端设备接收一个小区发送的SSB，若接收到的SSB在第一组sync raster上(如SSB1)，则终端设备在该小区的上行载波上发送第二信号之前不进行信道检测；若接收到的SSB在第二组sync raster上(如SSB2)，则终端设备在该小区的上行载波上发送第二信号之前进行信道检测。
在一些实施例中，终端设备发送第二信号之前如何进行信道检测是预定义或预配置 的。例如，可以预定义或预配置如下至少之一的参数或信息：信道检测的时间长度；用于生成用于进行信道检测的随机数的第一参数(例如竞争窗CW)的取值；用于生成用于进行信道检测的随机数的第一参数的取值范围；信道接入类型；信道接入优先级；信道接入模式。
在一些实施例中，终端设备还可以根据SSB的时域位置确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测。例如，若cell-defining SSB在一个帧的第一个半帧，则终端设备不进行信道检测，若在第二个半帧，则终端设备进行信道检测。同理类推，可以适当地进行变型。
在一些实施例中，终端设备还可以根据SSB与RMSI的相对位置确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测。
图4是本申请实施例的终端设备根据SSB与RMSI的相对位置确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测的一示例图。例如，如图4所示，若SSB和CORESET#0采用图案1(pattern 1)，则终端设备不进行信道检测；若采用图案2(pattern 2)，则终端设备进行信道检测。
图3和4仅示例性对终端设备如何根据SSB确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测进行了示例性说明，本申请实施例不限于此。对于具体如何根据上述与SSB相关的信息确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测，可以根据实际需要灵活地选择。
在一些实施例中，第一信号为无线资源控制(RRC)消息或MAC CE或DCI。以下为简单起见，部分例子中以RRC消息为例进行说明，对于MAC CE或DCI的情况可以相应地进行处理。
在一些实施例中，第一信号包括RRC消息。RRC消息中可以包括第一信息。该第一信息是RRC IE或filed。终端设备根据所述无线资源控制(RRC)消息中包括的第一信息确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测。例如，RRC消息可以通过第一信息显式地指示UE在发送第二信号之前是否进行信道检测和/或如何进行信道检测。
例如，第一信息用于指示终端设备在发送第二信号之前进行的信道检测的以下至少之一：信道检测的时间长度；用于进行信道检测的随机数(例如后述的图5中的N，可由基站基于第一参数生成后通过第一信息指示给UE)的取值；用于生成用于进行信道检测的随机数的第一参数(例如竞争窗CW)的取值；用于生成用于进行信道检测的随 机数的第一参数的取值范围；信道接入类型；信道接入优先级；信道接入模式。
再例如，第一信息用于指示信道接入模式，且第一信息能够指示的信道接入模式的其中一种是不进行信道检测，则在第一信息指示信道接入模式为不进行信道检测情况下，终端设备在发送第二信号之前不进行信道检测。在第一信息指示其他的信道接入模式时，终端设备在发送第二信号之前进行信道检测。其中，终端设备发送第二信号之前如何进行信道检测是预定义或预配置的。以第一信息为channelAccessMode为例，可以显式地指示不进行信道检测。
表1
Figure PCTCN2020107576-appb-000002
在一些实施例中，第一信息针对(per)如下至少之一：系统(system)、小区组(cell group)、小区(cell)、载波、信道组、部分带宽(BWP)、信道、波束、物理信道/物理信号、物理信道/物理信号承载的数据。物理信道例如是PRACH/PUCCH/PUSCH，物理信号例如是SRS等。
例如，若第一信息是per cell的，即UE可以根据第一信息确定是否进行信道检测和/或如何进行信道检测，且确定的结果适用于UE在该小区发送的所有上行信号。更具体地，例如，若一个UE获知一个小区是“不进行信道检测”，则针对该小区的所有上行信号，该UE在发送之前不检测信道。再例如，若第一信息是per BWP的，即若一个UE获知一个UL BWP是“不进行信道检测”，则针对该UL BWP的所有上行信号，该UE在发送之前不检测信道。
在一些实施例中，第一信息可以是小区特定的(cell-specific)，或者，也可以是设备特定的(UE-specific)。例如，cell-specific是指对于一个cell中的所有UE，第一信息的指示是相同的，第一信息可以是基站广播的或基站发送给特定UE的；UE-specific则是指对于一个cell中的不同UE，第一信息的指示可以是不同的(当然，特别地，也可以是相同的)，第一信息可以是基站发送给特定UE的。
再例如，第一信息的指示是per system/cell/channel的，第一信息例如包括在MIB 或SIB1中。第一信息的指示是per BWP的，第一信息例如包括在用于配置BWP的RRCIE中。若第一信息的指示是per channel的，第一信息例如包括在用于配置channel的RRC IE中。
在一些实施例中，用于配置channel的RRC IE是指用于配置RB set和/或intra-cell guard band(s)的RRC IE。
在一些实施例中，第一信号为无线资源控制(RRC)消息或MAC CE。RRC消息或MAC CE中可以包括第一信息。以RRC消息为例，该第一信息是RRC IE或filed。UE根据RRC消息是否包括第一信息确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测。例如，RRC消息可以通过是否包含第一信息隐式地指示UE在发送第二信号之前是否进行信道检测和/或如何进行信道检测。
例如，在无线资源控制(RRC)消息中不包括第一信息的情况下，终端设备在发送第二信号之前不进行信道检测，在无线资源控制(RRC)消息中包括第一信息的情况下，终端设备在发送第二信号之前进行信道检测。
其中，终端设备发送第二信号之前如何进行信道检测是预定义或预配置的。例如，第一信息用于指示进行信道检测，以第一信息为channelAccess为例：
表2
channelAccess-r17    ENUMERATED{enabled}
再例如，在无线资源控制(RRC)消息中包括第一信息的情况下，终端设备在发送第二信号之前不进行信道检测，在无线资源控制(RRC)消息中不包括第一信息的情况下，终端设备在发送第二信号之前进行信道检测。其中，终端设备发送第二信号之前如何进行信道检测是预定义或预配置的。例如，第一信息用于指示不进行信道检测，以第一信息为noChannelSensing为例：
表3
noChannelSensing-r17    ENUMERATED{enabled}
再例如，在无线资源控制(RRC)消息中不包括第一信息的情况下，终端设备在发送第二信号之前不进行信道检测，在无线资源控制(RRC)消息中包括第一信息的情况下，终端设备在发送第二信号之前进行信道检测且终端设备发送第二信号之前如何进行信道检测是预定义或预配置的。
其中，第一信息用于指示终端设备在发送第二信号之前进行的信道检测的以下之一：信道检测的时间长度；用于进行信道检测的随机数的取值；用于生成用于进行信道检测的随机数的第一参数(e.g.CW)的取值；用于生成用于进行信道检测的随机数的第一参数的取值范围；信道接入类型；信道接入优先级；信道接入模式。
例如，第一信息用于指示信道接入模式，以第一信息为channelAccess为例：
表4
Figure PCTCN2020107576-appb-000003
在一些实施例中，在工作频段为非授权频段的情况下，无线资源控制(RRC)消息中能够包括第一信息；在工作频段为授权频段的情况下，无线资源控制(RRC)消息中不能够包括第一信息。
在一些实施例中，第一信号可以用于指示工作频段。在第一信号指示工作频段为授权频段的情况下，终端设备在发送第二信号之前不进行信道检测；或者，在第一信号指示工作频段为非授权频段的情况下，终端设备在发送第二信号之前进行信道检测，和/或，终端设备确定在发送第二信号之前进行的信道检测的时间长度。
例如，“不进行信道检测”可以与“工作频段为授权频段”等价，也就是说，基站也可以通过指示工作频段为授权频段，来指示UE在发送上行信号之前不检测信道；反之亦然。
以RRC消息为例，可以通过工作频段来指示不进行信道检测。
表5
Figure PCTCN2020107576-appb-000004
再例如，“不进行信道检测”也可以与“工作频段为授权频段”不等价，也就是说，当基站指示“不进行信道检测”时，工作频段可能是授权频段也可能是非授权频段。
在一些实施例中，所述第一信号包括SSB和所述RRC消息，所述SSB用于所述终端设备确定所述工作频段为非授权频段，或者，所述SSB用于所述终端设备确定所述工作频段为授权频段。即，基站还可以(例如通过SSB/RRC消息)另外指示工作频段是授权频段或非授权频段。
在一些实施例中，RRC消息中包括第二信息，所述第二信息用于指示工作频段。即，以通过RRC消息指示为例，RRC消息中可以包括第二信息，第二信息用于指示工作频段是授权频段或非授权频段，或者，第二信息用于指示工作频段的频带索引(band index)。其中，一个band index标识的band是授权频谱还是非授权频谱是预定义的。
例如，可以在MIB中包括例如以下信息域(即第二信息)：
表6
operationMode     ENUMERATED{sharingSpectrum,nonSharingSpectrum}
再例如，可以在MIB以外的RRC消息(例如SIB1和/或专用的RRC消息)中包括以下信息域：
表7
Figure PCTCN2020107576-appb-000005
在一些实施例中，在第一信号指示不进行信道检测的情况下，无线资源控制(RRC)消息中能够包括用于指示工作频段的第二信息；或者，在第一信号没有指示不进行信道检测的情况下，无线资源控制(RRC)消息中不能够包括用于指示工作频段的第二信息。
例如，RRC消息中是否可以包括第一信息可以取决于工作频段是授权频段还是非授权频段。第一信息可以显式地指示“不进行信道检测”，若工作频段为非授权频段，则RRC消息中可以包括第一信息，若工作频段为授权频段，则RRC消息中不可以包括该第一信息。
再例如，RRC消息中是否能够包括第二信息可以取决于基站是否指示UE发送上行信号前不检测信道。基站可以通过SSB和/或RRC消息指示“不进行信道检测”，则RRC 消息中可以包括第二信息，否则RRC消息中不可以包括该第二信息。
以上对于是否进行信道检测和如何进行信道检测进行了示意性说明，以下再结合信道接入模式和/或信道接入类型进一步进行说明。为简单起见，前面已经说明的内容以下省略说明。
在一些实施例中，信道接入模式包括不进行信道检测的模式，此外所述信道接入模式还可以包括动态信道接入模式和/或半静态信道接入模式。
例如，针对NR系统在更高频段上的工作，可以支持例如以下至少一种信道接入模式：模式1：LBE(动态信道接入模式)；模式2：FBE(半静态信道接入模式)；模式3：不进行信道检测的模式。
再例如，一种信道接入模式可以对应一种或多种信道接入类型。一种信道接入模式对应的信道接入类型可以是预定义或预配置的或基站配置(或称为基站指示)的。例如是RRC配置或RRC消息配置的，也可称为由基站通过RRC信令指示的。所述信道接入类型包括不进行信道检测的类型，此外还可以包括进行信道检测的类型。例如，模式1可以包括类型1(用于初始化占用信道)、类型2(用于共享占用信道)、类型3(不检测信道)。
图5是本申请实施例的模式1中类型1的一示例图(例1)，示例性示出了不划分信道接入优先类别(CAPC，Channel Access Priority Class)的一个例子。例如，T f＝8us，T sl＝5us,N＝random(0,CW-m)，m和CW为大于或等于0的整数，且CW>m。例如，m＝0，CW＝127。
图6是本申请实施例的模式1中类型1的另一示例图(例2)，示例性示出了划分CAPC的一个例子。例如，T f＝8us，T sl＝5us。N＝random(0,CW p)，m p和CW p的取值例如下表8所示。
表8
CAPC(p) m p CW min,p CW max,p T ulmcot,p allowed CW p sizes
1 2 3 7 2ms {3,7}
2 2 7 15 4ms {7,15}
3 3 15 1023 6ms or 10ms {15,31,63,127,255,511,1023}
4 7 15 1023 6ms or 10ms {15,31,63,127,255,511,1023}
图7是本申请实施例的模式1中类型1的另一示例图(例3)，示例性示出了不检测信道即发送上行信号的发送的情况。
图8是本申请实施例的模式1中类型2的一示例图(例1)，例如可以在type 1信道接入对应的信道占用时间内。例如，T f＝8us，T sl＝5us。
图9是本申请实施例的模式1中类型2的另一示例图(例2)，例如，T f＝8us。
图10是本申请实施例的模式1中类型2的另一示例图(例3)。
图11是本申请实施例的模式1中类型2的另一示例图(例4)，在信道占用时间(COT，Channel Occupation Time)内可以不检测信道即发送上行信号。
模式2可以包括类型1(用于初始化占用信道)、类型2(用于共享占用信道)、类型3(不检测信道)。
图12是本申请实施例的模式2中类型1的一示例图(例1)。例如，UE从周期性信道占用(CO，Channel Occupation)的起始位置开始发送上行信号；信道检测时间例如为5us。
图13是本申请实施例的模式2中类型2的一示例图(例1)。例如，UL和DL transmission burst的间隔不超过3us，UE可以不检测信道即发送上行信号。
图14是本申请实施例的模式2中类型2的另一示例图(例2)。例如，UL和DL transmission burst的间隔超过3us，UE可以检测信道空闲才能发送上行信号。信道检测时间例如为5us或13us。
图15是本申请实施例的模式2中类型2的另一示例图(例3)。例如，在信道占用时间内可以不检测信道即发送上行信号。
以上对于信道接入模式和/或信道接入类型进行了示例性说明，但本申请不限于此，还可以采用其他的信道接入模式和/或信道接入类型的划分。此外，可以仅有信道接入模式，也可以仅有信道接入类型，还可以将信道接入模式和信道接入类型结合起来。
在本申请实施例中，上述用于发送第二信号的上行资源可以是高层信令和/或DCI指示的，或者是RAR指示的，而第二信号可以是PRACH，PUCCH，PUSCH，SRS。以下结合具体的上行资源的指示方式和/或第二信号，进一步对终端设备确定是否检测信道和/或如何进行信道检测以及发送第二信号进行示例性说明。
在一些实施例中，上行资源是RRC消息配置的，或者，上行资源(或者第二信号)是下行控制信息(DCI)或随机接入响应(RAR)调度的且所述DCI或RAR中不包括 用于指示信道接入类型的信息域；在第一信息没有指示不进行信道检测的情况下，终端设备采用预定义或预配置的信道接入类型发送第二信号。
例如，所述预定义或预配置的信道接入类型是不进行信道检测的类型或进行信道检测的类型。其中，所述预定义或预配置的信道接入类型针对如下至少之一：系统、小区组、小区、载波、信道组、部分带宽(BWP)、信道、波束、物理信道/信号、物理信道/信号承载的数据。
在一些实施例中，上行资源是RRC消息配置的，或者，上行资源(或者第二信号)是下行控制信息(DCI)或随机接入响应(RAR)调度的且所述DCI或RAR中不包括用于指示信道接入类型的信息域，在第一信息没有指示不进行信道检测的情况下，终端设备在发送第二信号之前进行信道检测。其中，终端设备发送第二信号之前如何进行信道检测是第三信息指示的。
例如，第三信息用于指示以下至少之一：信道检测的时间长度；用于进行信道检测的随机数的取值；用于生成用于进行信道检测的随机数的第一参数(e.g.CW)的取值；用于生成用于进行信道检测的随机数的第一参数的取值范围；信道接入类型；信道接入优先级。
更具体地，例如，第一信息用于指示信道接入模式，且第一信息能够指示的信道接入模式的其中一种是不进行信道检测，则在第一信息指示信道接入模式为不进行信道检测的情况下，终端设备在发送第二信号之前不进行信道检测。在第一信息指示其他的信道接入模式时，终端设备在发送第二信号之前进行信道检测。其中，终端设备发送第二信号之前如何进行信道检测是第三信息指示的。
例如，第三信息针对如下至少之一：系统、小区组、小区、载波、信道组、部分带宽(BWP)、信道、波束、物理信道/信号、物理信道/信号承载的数据。
在一些实施例中，上行资源是RRC消息配置的，或者，上行资源(或者第二信号)是下行控制信息(DCI)或随机接入响应(RAR)调度(指示)的且所述DCI或RAR中不包括用于指示信道接入类型的信息域，第一信息用于指示信道接入类型，终端设备采用第一信息指示的信道接入类型发送第二信号。
在一些实施例中，上行资源(或者第二信号)是DCI或RAR调度的，在第一信号指示不进行信道检测的情况下，终端设备确定用于调度所述上行资源的DCI或RAR中不包括用于指示信道接入类型的信息域，并且终端设备在发送第二信号之前不进行信道检测。
在一些实施例中，上行资源(或者所述第二信号)是DCI或RAR调度的，在第一信号没有指示不进行信道检测的情况下，终端设备还根据第四信息确定用于调度所述上行资源的DCI或RAR中包括的用于指示信道接入类型的信息域，所述第四信息至少用于指示所述DCI或RAR能够指示的信道接入类型。
在一些实施例中，终端设备采用DCI或RAR指示的信道接入类型发送第二信号，或者，在第四信息指示1种信道接入类型的情况下，采用第四信息指示的信道接入类型发送第二信号。
在一些实施例中，第二信号为物理上行共享信道(PUSCH)，以下先以PUSCH为例进行说明。
例如，针对RRC配置的PUSCH(例如Type 1/Type 2CG)，第一信息和/或第三信息包括在用于配置授权(CG)的配置信息中。例如，UE采用RRC消息中包括的第三信息指示的信道接入类型来发送PUSCH。例如，若该第三信息指示的信道接入类型是不检测信道，则UE可以不检测信道即发送该配置的PUSCH。
再例如，针对DCI(例如DCI 0_0，0_1)动态调度的PUSCH，UE采用DCI中的第三信息指示的信道接入类型来发送该PUSCH。
在一些实施例中，在接收DCI之前，UE可以根据信道接入模式和/或第四信息确定DCI的大小和/或内容。其中，第四信息至少用于指示DCI所能指示的信道接入类型。第四信息例如包括在RRC消息中。该指示可以是per DCI format的。
以DCI 0_0为例，例如，若信道接入模式为模式3，则DCI 0_0中不包括第三信息。再例如，若信道接入模式为模式1，第四消息指示DCI 0_0所能指示的信道接入类型例如为上述模式1中的一个或多个。特别地，当指示为1个时，DCI 0_0中可以不包括第三信息，UE接收到用于调度PUSCH的DCI 0_0后，可以采用第四消息指示的信道接入类型发送该DCI调度的PUSCH。
在一些实施例中，在基站没有指示一个PUSCH的信道接入类型的情况下，UE可以根据traffic type/priority确定信道接入类型。traffic type/priority所能采用的信道接入类型可以是预定义的或由基站指示的。例如，UE可以不检测信道即发送用于承载例如以下信息的PUSCH：SRB0,SRB1,and SRB3,MAC CEs(except the padding BSR and recommended bit rate MAC CEs)。
在一些实施例中，第二信号为PUCCH，以下再以PUCCH为例进行说明。第一信息或第三信息包括在PUCCH的配置信息或者SR的配置信息中或者CSI的配置信息中。
例如，针对RRC配置的PUCCH(例如用于SR或P/SP的CSI上报的PUCCH)，UE采用RRC消息中包括的第三信息指示的信道接入类型发送PUCCH。更具体地，第三信息可以包括在SR或P/SP的CSI上报的配置信息中。例如，若该第三信息指示的信道接入类型是不检测信道，则UE可以不检测信道即发送该配置的PUCCH。另一方面，该第三信息还可以是per UCI type的。
再例如，针对DCI(例如DCI 1_0，1_1)动态调度的PUCCH，UE采用SIB1中的第三信息指示的信道接入类型发送该PUCCH。
例如，在接收DCI之前，UE可以根据信道接入模式和/或第四信息确定DCI的大小和/或内容。其中，第四信息至少用于指示DCI所能指示的信道接入类型。第四信息例如包括在RRC消息中。该指示可以是per DCI format的。
具体地，以DCI 1_0为例，例如，若信道接入模式为模式3，则DCI 1_0中不包括第三信息。再例如，若信道接入模式为模式1，第四消息指示DCI 1_0所能指示的信道接入类型例如为上述模式1中的一个或多个。特别地，当指示为1个时，DCI 1_0中可以不包括第三信息，UE接收到用于调度PUCCH的DCI 1_0后，可以采用第四消息指示的信道接入类型发送该DCI调度的PUCCH。
再例如，在基站没有指示一个PUCCH的信道接入类型的情况下，UE可以根据UCI type确定信道接入类型。UCI type所能采用的信道接入类型可以是预定义的或基站指示的。例如，UE可以不检测信道即发送用于承载例如以下信息的PUSCH:HARQ-ACK,SR。
在一些实施例中，第二信号为探测参考信号(SRS)，以下再以SRS为例进行说明。第一信息或第三信息包括在探测参考信号(SRS)的配置信息中。
例如，针对RRC配置的SRS(P/SP SRS)，UE可以根据RRC消息中包括的第三信息指示的信道接入类型发送SRS。更具体地，第三消息可以包括在SRS配置信息中。
再例如，针对动态调度的SRS，若SRS不和PUSCH一起发送，UE采用预配置的信道接入类型发送SRS，该预配置的信道接入类型例如是RRC消息中包括的第三信息指示的，第三消息可以包括在SRS配置信息中。
在一些实施例中，第二信号为物理随机接入信道(PRACH)，以下再以PRACH为例进行说明。第一信息或第三信息包括在物理随机接入信道(PRACH)的配置信息中。
例如，针对高层(MAC/RRC/PDCCH order)触发的RA，UE可以根据RRC消息中包括的第三信息指示的信道接入类型发送PRACH。更具体地，第三消息可以包括在 PRACH配置信息中。例如，若该第三信息指示的信道接入类型是不检测信道，则UE可以不检测信道即发送PRACH。另一方面，该第三信息还可以是per RA type(e.g.CBRA/CFRA)/usage(UL sync./BFR)的。
再例如，针对PDCCH order triggered RA，用于trigger RA的DCI中可以包括第三信息，UE采用该DCI中的第三信息指示的信道接入类型发送PRACH。
以上以PUSCH、PUCCH、SRS和PRACH为例对本申请实施例分别进行了示例性说明，但本申请不限于此。
在一些实施例中，针对基于公共DCI(common SCI)“type X2”被允许的情况，UE可以从type X1切换(switch)到type X2。其中，Type X1例如为上述模式1的例1/2，Type X2例如为上述模式1的例1/2/3/4。Type X1/X2是预定义的或RRC配置的。另一方面，还可以预定义或使用RRC消息来配置能够在上述情况下进行上述切换的信号/信道/业务类型。
在一些实施例中，终端设备向网络设备发送测量结果；所述测量结果针对如下至少之一：小区、小区组、信道、信道组、部分带宽(BWP)、波束。
例如，测量结果包括以下至少一项：接收信号强度，信道占用(CO)的信息，需要进行信道检测的信息，不需要进行信道检测的信息。
再例如，终端设备在满足一定条件的情况下发送测量结果；所述条件包括：接收信号强度和/或信道占用高于第一门限，和/或，接收信号强度和/或信道占用低于第二门限。
在一些实施例中，UE接收第二小区发送的第一信号(例如SSB和/或SIB1)后，向第一小区发送(或者说上报)第五信息。第五信息例如包括以下至少之一：
第二小区的信道接入模式；
第二小区是否进行信道检测；
第二小区的发送的第一信号承载的第一信息；
第二小区的信道配置(例如第二小区的RB set和/或intra-cell guard band配置)；
第二小区的MIB；
第二小区的SIB1；
其中，第一小区和第二小区属于同一通信系统或不同通信系统，第一小区是UE的激活服务小区(active serving cell)。
图16是本申请实施例的终端设备的发送上行信号的一示例图。如图16所述，UE接收到第二小区(小区B，例如Phy-CID＝5，Global-CID＝19)发送的第一信号(例如 SSB/SIB1…)，可以向第一小区(小区A，例如Phy-CID＝3，Global-CID＝17)上报第五信息。如图16所示，UE和第一小区(小区A)之间还可以交互信息。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
由上述实施例可知，终端设备接收网络设备发送的第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及终端设备使用上行资源向网络设备发送第二信号。由此，能够支持NR在更高的频率上进行上行传输，网络设备能够灵活地控制终端设备进行或不进行信道检测和/或终端设备如何进行信道检测，从而适用于多种多样的场景，并且能够尽可能避免不必要的信道检测，从而节省终端设备的电量并提高资源利用率和吞吐量。
第二方面的实施例
本申请实施例提供一种上行信号的接收方法，从网络设备进行说明，与第一方面的实施例相同的内容不再赘述。
图17是本申请实施例的上行信号的接收方法的一示意图，如图17所示，该方法包括：
1701，网络设备向终端设备发送第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及
1702，所述网络设备接收所述终端设备使用上行资源发送的所述第二信号。
值得注意的是，以上附图17仅对本申请实施例进行了示意性说明，但本申请不限于此。例如可以适当地调整各个操作之间的执行顺序，此外还可以增加其他的一些操作或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型，而不仅限于上述附图17的记载。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
由上述实施例可知，终端设备接收网络设备发送的第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及终端设备使用上行资源向网络设备发送第二信号。由此，能够支持NR在更高的频率 上进行上行传输，网络设备能够灵活地控制终端设备进行或不进行信道检测和/或终端设备如何进行信道检测，从而适用于多种多样的场景，并且能够尽可能避免不必要的信道检测，从而节省终端设备的电量并提高资源利用率和吞吐量。
第三方面的实施例
本申请实施例提供一种上行信号的发送装置。该装置例如可以是终端设备，也可以是配置于终端设备的某个或某些部件或者组件，与第一方面的实施例相同的内容不再赘述。
图18是本申请实施例的上行信号的发送装置的一示意图，如图18所示，上行信号的发送装置1800包括：
接收单元1801，其接收网络设备发送的第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及
发送单元1802，其使用上行资源向所述网络设备发送所述第二信号。
在一些实施例中，第一信号包括如下至少之一：同步信号块、无线资源控制消息、介质访问控制控制元素、下行控制信息。
在一些实施例中，上行资源在授权频段上，或者，上行资源在非授权频段上。
在一些实施例中，第一信号用于指示信道接入模式和/或信道接入类型和/或工作频段。
在一些实施例中，第一信号为同步信号块；终端设备根据同步信号块的至少如下之一确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测：
同步信号块的频域位置；
同步信号块的时域位置；
同步信号块的时频结构；
同步信号块中的主同步信号的序列；
同步信号块中的辅同步信号的序列；
同步信号块中的物理广播信道的解调参考信号的序列；
同步信号块中的物理广播信道的解调参考信号的频域位置；
同步信号块中的物理广播信道的加扰序列；
同步信号块的物理广播信道的负载；
同步信号块与剩余最小系统信息的相对位置。
在一些实施例中，第一信号包括无线资源控制消息或MAC CE或DCI；终端设备根据无线资源控制消息中包括的第一信息确定在发送第二信号之前不进行信道检测。
在一些实施例中，终端设备根据无线资源控制消息中包括的第一信息确定在发送第二信号之前进行信道检测，和/或，确定在发送第二信号之前进行信道检测的时间长度。
在一些实施例中，第一信号包括无线资源控制消息；在无线资源控制消息中不包括第一信息的情况下，终端设备在发送第二信号之前不进行信道检测，或者，在无线资源控制消息中包括第一信息的情况下，终端设备在发送第二信号之前不进行信道检测。
在一些实施例中，第一信息是小区专用的或者设备专用的；第一信息针对如下至少之一：系统、小区组、小区、载波、信道组、部分带宽、信道、波束、物理信道/信号、物理信道/信号承载的数据。
在一些实施例中，第一信息用于指示信道接入模式和/或信道接入类型。
在一些实施例中，在工作频段为非授权频段的情况下，无线资源控制消息中能够包括第一信息；在工作频段为授权频段的情况下，无线资源控制消息中不能够包括第一信息。
在一些实施例中，第一信号包括SSB和RRC消息，所述SSB用于终端设备确定工作频段为非授权频段，或者，所述SSB用于终端设备确定工作频段为授权频段。
在一些实施例中，RRC消息中包括第二信息，所述第二信息用于指示工作频段；或者，所述第一信号还用于指示工作频段。
在一些实施例中，在第一信号指示工作频段为授权频段的情况下，终端设备在发送第二信号之前不进行信道检测。
在一些实施例中，在第一信号指示工作频段为非授权频段的情况下，终端设备在发送第二信号之前进行信道检测，和/或，确定在发送第二信号之前进行信道检测的时间长度。
在一些实施例中，信道接入模式包括不进行信道检测的模式，和/或，信道接入模式还包括动态信道接入模式和/或半静态信道接入模式。
在一些实施例中，第一信号用于所述指示信道接入模式；在第一信号指示信道接入模式为不进行信道检测的情况下，无线资源控制消息中能够包括用于指示工作频段的第二信息，或者，在第一信号指示信道接入模式不为不进行信道检测的情况下，无线资源控制消息中不能够包括用于指示工作频段的第二信息。
在一些实施例中，信道接入类型包括不进行信道检测的类型，和/或，信道接入类型 还包括进行信道检测的类型。
在一些实施例中，上行资源是RRC消息配置的，或者，上行资源是下行控制信息或随机接入响应调度的且所述DCI或RAR中不包括用于指示信道接入类型的信息域。
在一些实施例中，在第一信息没有指示不进行信道检测的情况下，终端设备采用预定义或预配置的信道接入类型发送所述第二信号；其中，所述预定义或预配置的信道接入类型是不进行信道检测的类型，或者，所述预定义或预配置的信道接入类型是进行信道检测的类型。
在一些实施例中，预定义或预配置的信道接入类型针对如下至少之一：系统、小区组、小区、载波、信道组、部分带宽、信道、波束、物理信道/信号、物理信道/信号承载的数据。
在一些实施例中，上行资源是RRC消息配置的，在第一信息没有指示不进行信道检测的情况下，终端设备采用第三信息指示的信道接入类型发送所述第二信号。
在一些实施例中，第三信息针对如下至少之一：系统、小区组、小区、载波、信道组、部分带宽、信道、波束、物理信道/信号、物理信道/信号承载的数据。
在一些实施例中，上行资源是RRC消息配置的，或者，上行资源是下行控制信息或随机接入响应调度的且所述DCI或RAR中不包括用于指示信道接入类型的信息域。
在一些实施例中，第一信息用于指示信道接入类型，终端设备采用所述第一信息指示的信道接入类型发送第二信号。
在一些实施例中，第二信号为物理上行共享信道，第一信息或者第三信息包括在配置授权的配置信息中。
在一些实施例中，第二信号为探测参考信号，第一信息或者第三信息包括在探测参考信号的配置信息中。
在一些实施例中，第二信号为物理随机接入信道，第一信息或者第三信息包括在物理随机接入信道的配置信息中。
在一些实施例中，第二信号为物理上行控制信道，第一信息或者第三信息包括在PUCCH的配置信息或者调度请求的配置信息中或者信道状态信息的配置信息中。
在一些实施例中，上行资源由DCI或RAR调度，在第一信号指示不进行信道检测的情况下，终端设备确定用于调度上行资源的DCI或RAR中不包括用于指示信道接入类型的信息域，并且终端设备在发送第二信号之前不进行信道检测。
在一些实施例中，上行资源由DCI或RAR调度，在第一信号没有指示不进行信道 检测的情况下，终端设备还根据第四信息确定用于调度上行资源的DCI或RAR中包括的用于指示信道接入类型的信息域，第四信息至少用于指示DCI或RAR能够指示的信道接入类型。
在一些实施例中，终端设备采用DCI或RAR指示的信道接入类型发送第二信号，或者，在第四信息指示一种信道接入类型的情况下，采用所述第四信息指示的信道接入类型发送第二信号。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
值得注意的是，以上仅对与本申请相关的各部件或模块进行了说明，但本申请不限于此。上行信号的发送装置1700还可以包括其他部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图17中仅示例性示出了各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本申请实施并不对此进行限制。
由上述实施例可知，终端设备接收网络设备发送的第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及终端设备使用上行资源向网络设备发送第二信号。由此，能够支持NR在更高的频率上进行上行传输，网络设备能够灵活地控制终端设备进行或不进行信道检测和/或终端设备如何进行信道检测，从而适用于多种多样的场景，并且能够尽可能避免不必要的信道检测，从而节省终端设备的电量并提高资源利用率和吞吐量。
第四方面的实施例
本申请实施例提供一种上行信号的接收装置。该装置例如可以是网络设备，也可以是配置于网络设备的某个或某些部件或者组件，与第一、二方面的实施例相同的内容不再赘述。
图19是本申请实施例的上行信号的接收装置的一示意图。如图19所示，上行信号的接收装置1900包括：
发送单元1901，其向终端设备发送第一信号，所述第一信号至少用于所述终端设备 确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及
接收单元1902，其接收所述终端设备使用上行资源发送的所述第二信号。
以上各个实施例仅对本申请实施例进行了示例性说明，但本申请不限于此，还可以在以上各个实施例的基础上进行适当的变型。例如，可以单独使用上述各个实施例，也可以将以上各个实施例中的一种或多种结合起来。
值得注意的是，以上仅对与本申请相关的各部件或模块进行了说明，但本申请不限于此。上行信号的接收装置1900还可以包括其他部件或者模块，关于这些部件或者模块的具体内容，可以参考相关技术。
此外，为了简单起见，图19中仅示例性示出了各个部件或模块之间的连接关系或信号走向，但是本领域技术人员应该清楚的是，可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现；本申请实施并不对此进行限制。
由上述实施例可知，终端设备接收网络设备发送的第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及终端设备使用上行资源向网络设备发送第二信号。由此，能够支持NR在更高的频率上进行上行传输，网络设备能够灵活地控制终端设备进行或不进行信道检测和/或终端设备如何进行信道检测，从而适用于多种多样的场景，并且能够尽可能避免不必要的信道检测，从而节省终端设备的电量并提高资源利用率和吞吐量。
第五方面的实施例
本申请实施例还提供一种通信系统，可以参考图1，与第一方面至第四方面的实施例相同的内容不再赘述。该通信系统可以包括：
终端设备，其接收第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及使用上行资源发送所述第二信号；以及
网络设备，其发送所述第一信号并接收所述第二信号。
本申请实施例还提供一种网络设备，例如可以是基站，但本申请不限于此，还可以是其他的网络设备。
图20是本申请实施例的网络设备的构成示意图。如图20所示，网络设备2000可以包括：处理器2010(例如中央处理器CPU)和存储器2020；存储器2020耦合到处理 器2010。其中该存储器2020可存储各种数据；此外还存储信息处理的程序2030，并且在处理器2010的控制下执行该程序2030。
例如，处理器2010可以被配置为执行程序而实现如第二方面的实施例所述的上行信号的接收方法。例如处理器2010可以被配置为进行如下的控制：向终端设备发送第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及接收所述终端设备使用上行资源发送的所述第二信号。
此外，如图20所示，网络设备2000还可以包括：收发机2040和天线2050等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，网络设备2000也并不是必须要包括图20中所示的所有部件；此外，网络设备2000还可以包括图20中没有示出的部件，可以参考现有技术。
本申请实施例还提供一种终端设备，但本申请不限于此，还可以是其他的设备。
图21是本申请实施例的终端设备的示意图。如图21所示，该终端设备2100可以包括处理器2110和存储器2120；存储器2120存储有数据和程序，并耦合到处理器2110。值得注意的是，该图是示例性的；还可以使用其他类型的结构，来补充或代替该结构，以实现电信功能或其他功能。
例如，处理器2110可以被配置为执行程序而实现如第一方面的实施例所述的上行信号的发送方法。例如处理器2110可以被配置为进行如下的控制：接收网络设备发送的第一信号，所述第一信号至少用于终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及使用上行资源向所述网络设备发送所述第二信号。
如图21所示，该终端设备2100还可以包括：通信模块2130、输入单元2140、显示器2150、电源2160。其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，终端设备2100也并不是必须要包括图21中所示的所有部件，上述部件并不是必需的；此外，终端设备2100还可以包括图21中没有示出的部件，可以参考现有技术。
本申请实施例还提供一种计算机程序，其中当在终端设备中执行所述程序时，所述程序使得所述终端设备执行第一方面的实施例所述的上行信号的发送方法。
本申请实施例还提供一种存储有计算机程序的存储介质，其中所述计算机程序使得终端设备执行第一方面的实施例所述的上行信号的发送方法。
本申请实施例还提供一种计算机程序，其中当在网络设备中执行所述程序时，所述程序使得所述网络设备执行第二方面的实施例所述的上行信号的接收方法。
本申请实施例还提供一种存储有计算机程序的存储介质，其中所述计算机程序使得终端设备执行第二方面的实施例所述的上行信号的接收方法。
本申请以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本申请涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。本申请还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本申请实施例描述的方法/装置可直接体现为硬件、由处理器执行的软件模块或二者组合。例如，图中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合，既可以对应于计算机程序流程的各个软件模块，亦可以对应于各个硬件模块。这些软件模块，可以分别对应于图中所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息；或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中，也可以存储在可插入移动终端的存储卡中。例如，若设备(如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置，则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，可以实现为用于执行本申请所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本申请进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本申请保护范围的限制。本领域技术人员可以根据本申请的精神和原理对本申请做出各种变型和修改，这些变型和修改也在本申请的范围内。
关于包括以上实施例的实施方式，还公开下述的附记：
附记1、一种上行信号的发送方法，包括：
终端设备接收网络设备发送的第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及
所述终端设备使用上行资源向所述网络设备发送所述第二信号。
附记2、根据附记1所述的方法，其中，所述第一信号包括如下至少之一：同步信号块(SSB)、无线资源控制(RRC)消息、介质访问控制(MAC)控制元素(CE)、下行控制信息(DCI)、随机接入响应(RAR)。
附记3、根据附记1所述的方法，其中，所述上行资源在授权频段上，或者，所述上行资源在非授权频段上。
附记4、根据附记1至3任一项所述的方法，其中，所述终端设备确定在发送第二信号之前是否进行信道检测，包括：所述终端设备确定在发送第二信号之前不进行信道检测，或者，所述终端设备确定在发送第二信号之前进行信道检测。
附记5、根据附记1至3任一项所述的方法，其中，所述终端设备确定在发送第二信号之前如何进行信道检测，包括：所述终端设备确定在发送第二信号之前进行的信道检测的时间长度；和/或，所述终端设备确定在发送第二信号之前进行的信道检测的信道接入类型；和/或，所述终端设备确定在发送第二信号之前进行的信道检测的信道接入优先级。
附记6、根据附记1至5任一项所述的方法，其中，所述第一信号用于指示所述终端设备在发送第二信号之前进行的信道检测的以下至少之一：信道检测的时间长度；用于进行信道检测的随机数的取值；用于生成用于进行信道检测的随机数的第一参数的取值；用于生成用于进行信道检测的随机数的第一参数的取值范围；信道接入类型；信道接入优先级；信道接入模式。
附记7、根据附记1至5任一项所述的方法，其中，所述第一信号用于指示信道接入模式和/或信道接入类型和/或工作频段。
附记8、根据附记1至7任一项所述的方法，其中，所述第一信号为同步信号块(SSB)；所述终端设备根据所述同步信号块(SSB)的至少如下之一确定在发送所述第二信号之前是否进行信道检测和/或如何进行信道检测：
所述同步信号块(SSB)的频域位置；
所述同步信号块(SSB)的时域位置；
所述同步信号块(SSB)的时频结构；
所述同步信号块(SSB)中的主同步信号(PSS)的序列；
所述同步信号块(SSB)中的辅同步信号(SSS)的序列；、
所述同步信号块(SSB)中的物理广播信道(PBCH)的解调参考信号(DMRS)的序列；
所述同步信号块(SSB)中的物理广播信道(PBCH)的解调参考信号(DMRS)的频域位置；
所述同步信号块(SSB)中的物理广播信道(PBCH)的加扰序列；
所述同步信号块(SSB)的物理广播信道(PBCH)的负载；
所述同步信号块(SSB)与剩余最小系统信息(RMSI)的相对位置。
附记9、根据附记1至7任一项所述的方法，其中，所述第一信号包括所述无线资源控制(RRC)消息或MAC CE或DCI；所述终端设备根据所述无线资源控制(RRC)消息中包括的第一信息确定在发送所述第二信号之前不进行信道检测；或者，
所述终端设备根据所述无线资源控制(RRC)消息中包括的第一信息确定在发送所述第二信号之前进行信道检测，和/或，确定在发送所述第二信号之前进行信道检测的时间长度。
附记10、根据附记1至7任一项所述的方法，其中，所述第一信号包括所述无线资源控制(RRC)消息；在所述无线资源控制(RRC)消息中不包括第一信息的情况下，所述终端设备在发送所述第二信号之前不进行信道检测，或者，在所述无线资源控制(RRC)消息中包括第一信息的情况下，所述终端设备在发送所述第二信号之前不进行信道检测。
附记11、根据附记9或10所述的方法，其中，所述第一信息是小区特定的(cell-specific)或者设备特定的(UE-specific)。
附记12、根据附记9至11任一项所述的方法，其中，所述第一信息针对如下至少之一：系统、小区组、小区、载波、信道组、部分带宽(BWP)、信道、波束、物理信道/信号、物理信道/信号承载的数据。
附记13、根据附记9至12任一项所述的方法，其中，在工作频段为非授权频段的情况下，所述无线资源控制(RRC)消息中能够包括所述第一信息；在工作频段为授权频段的情况下，所述无线资源控制(RRC)消息中不能够包括所述第一信息。
附记14、根据附记9至13任一项所述的方法，其中，所述第一信息用于指示信道 接入模式和/或信道接入类型。
附记15、根据附记13或14所述的方法，其中，所述第一信号包括SSB和所述RRC消息，所述SSB用于所述终端设备确定所述工作频段为非授权频段，或者，所述SSB用于所述终端设备确定所述工作频段为授权频段。
附记16、根据附记13或14所述的方法，其中，所述RRC消息中包括第二信息，所述第二信息用于指示工作频段。
附记17、根据附记7所述的方法，其中，在所述第一信号指示所述工作频段为授权频段的情况下，所述终端设备在发送所述第二信号之前不进行信道检测；或者，
在所述第一信号指示所述工作频段为非授权频段的情况下，所述终端设备在发送所述第二信号之前进行信道检测，和/或，确定在发送所述第二信号之前进行信道检测的时间长度。
附记18、根据附记7或14所述的方法，其中，所述信道接入模式包括不进行信道检测的模式。
附记19、根据附记18所述的方法，其中，所述第一信号用于所述指示信道接入模式；在所述第一信号指示所述信道接入模式为不进行信道检测的情况下，无线资源控制(RRC)消息中能够包括用于指示工作频段的第二信息，或者，在所述第一信号指示信道接入模式不为不进行信道检测的情况下，所述无线资源控制(RRC)消息中不能够包括用于指示工作频段的第二信息。
附记20、根据附记18所述的方法，其中，所述信道接入模式还包括动态信道接入模式和/或半静态信道接入模式。
附记21、根据附记7或14所述的方法，其中，所述信道接入类型包括不进行信道检测的类型。
附记22、根据附记21所述的方法，所述不进行信道检测的类型用于初始化占用信道和/或用于共享信道。
附记23、根据附记21所述的方法，其中，所述信道接入类型还包括进行信道检测的类型。
附记24、根据附记14所述的方法，其中，所述上行资源是RRC消息配置的，或者，所述上行资源(或者所述第二信号)是下行控制信息(DCI)或随机接入响应(RAR)调度的且所述DCI或RAR中不包括用于指示信道接入类型的信息域，
在所述第一信息没有指示不进行信道检测的情况下，所述终端设备采用预定义或预 配置的信道接入类型发送所述第二信号。
附记25、根据附记24所述的方法，其中，所述预定义或预配置的信道接入类型是不进行信道检测的类型，或者，所述预定义或预配置的信道接入类型是进行信道检测的类型。
附记26、根据附记24所述的方法，其中，所述预定义或预配置的信道接入类型针对如下至少之一：系统、小区组、小区、载波、信道组、部分带宽(BWP)、信道、波束、物理信道/信号、物理信道/信号承载的数据。
附记27、根据附记14所述的方法，其中，所述上行资源是RRC消息配置的，在所述第一信息没有指示不进行信道检测的情况下，所述终端设备采用第三信息指示的信道接入类型发送所述第二信号。
附记28、根据附记27所述的方法，其中，所述第三信息针对如下至少之一：系统、小区组、小区、载波、信道组、部分带宽(BWP)、信道、波束、物理信道/信号、物理信道/信号承载的数据。
附记29、根据附记14所述的方法，其中，所述上行资源是RRC消息配置的，或者，所述上行资源(或者所述第二信号)是下行控制信息(DCI)或随机接入响应(RAR)调度的且所述DCI或RAR中不包括用于指示信道接入类型的信息域；
所述第一信息用于指示信道接入类型，所述终端设备采用所述第一信息指示的信道接入类型发送所述第二信号。
附记30、根据附记27或28所述的方法，其中，所述第二信号为物理上行共享信道(PUSCH)，所述第一信息或者所述第三信息包括在配置授权(CG)的配置信息中。
附记31、根据附记27或28所述的方法，其中，所述第二信号为探测参考信号(SRS)，所述第一信息或者所述第三信息包括在所述探测参考信号(SRS)的配置信息中。
附记32、根据附记27或28所述的方法，其中，所述第二信号为物理随机接入信道(PRACH)，所述第一信息或者所述第三信息包括在所述物理随机接入信道(PRACH)的配置信息中。
附记33、根据附记27或28所述的方法，其中，所述第二信号为物理上行控制信道(PUCCH)，所述第一信息或者所述第三信息包括在所述PUCCH的配置信息或者调度请求(SR)的配置信息中或者信道状态信息(CSI)的配置信息中。
附记34、根据附记1所述的方法，其中，所述上行资源(或者所述第二信号)由DCI或RAR调度，在所述第一信号指示不进行信道检测的情况下，所述终端设备确定 用于调度所述上行资源的DCI或RAR中不包括用于指示信道接入类型的信息域，并且所述终端设备在发送所述第二信号之前不进行信道检测。
附记35、根据附记1所述的方法，其中，所述上行资源(或者所述第二信号)由DCI或RAR调度，在所述第一信号没有指示不进行信道检测的情况下，所述终端设备还根据第四信息确定用于调度所述上行资源的DCI或RAR中包括的用于指示信道接入类型的信息域，所述第四信息至少用于指示所述DCI或RAR能够指示的信道接入类型。
附记36、根据附记35所述的方法，其中，所述终端设备采用所述DCI或RAR指示的信道接入类型发送所述第二信号，或者，在所述第四信息指示一种信道接入类型的情况下，采用所述第四信息指示的信道接入类型发送所述第二信号。
附记37、根据附记1至36任一项所述的方法，其中，所述方法还包括：
所述终端设备向所述网络设备发送测量结果；所述测量结果针对如下至少之一：小区、小区组、信道、信道组、部分带宽(BWP)、波束。
附记38、根据附记37所述的方法，其中，所述测量结果包括以下至少之一：接收信号强度、信道占用的信息、需要进行信道检测的信息、不需要进行信道检测的信息。
附记39、根据附记37或38所述的方法，其中，所述终端设备在满足一定条件的情况下发送所述测量结果；所述条件包括：接收信号强度和/或信道占用高于第一门限，和/或，接收信号强度和/或信道占用低于第二门限。
附记40、一种上行信号的接收方法，包括：
网络设备向终端设备发送第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及
所述网络设备接收所述终端设备使用上行资源发送的所述第二信号。
附记41、一种终端设备，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器被配置为执行所述计算机程序而实现如附记1至39任一项所述的上行信号的发送方法。
附记42、一种网络设备，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器被配置为执行所述计算机程序而实现如附记40所述的上行信号的接收方法。

Claims (20)

  1. 一种上行信号的发送装置，配置于终端设备，所述装置包括：
    接收单元，其接收网络设备发送的第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及
    发送单元，其使用上行资源向所述网络设备发送所述第二信号。
  2. 根据权利要求1所述的装置，其中，所述第一信号包括如下至少之一：同步信号块、无线资源控制消息、介质访问控制控制元素、下行控制信息，随机接入响应。
  3. 根据权利要求1所述的装置，其中，所述终端设备确定在发送第二信号之前如何进行信道检测，包括：所述终端设备确定在发送第二信号之前进行的信道检测的时间长度；和/或，所述终端设备确定在发送第二信号之前进行的信道检测的信道接入类型；和/或，所述终端设备确定在发送第二信号之前进行的信道检测的信道接入优先级。
  4. 根据权利要求1所述的装置，其中，所述第一信号为同步信号块；所述终端设备根据所述同步信号块的至少如下之一确定在发送所述第二信号之前是否进行信道检测和/或如何进行信道检测：
    所述同步信号块的频域位置；
    所述同步信号块的时域位置；
    所述同步信号块的时频结构；
    所述同步信号块中的主同步信号的序列；
    所述同步信号块中的辅同步信号的序列；、
    所述同步信号块中的物理广播信道的解调参考信号的序列；
    所述同步信号块中的物理广播信道的解调参考信号的频域位置；
    所述同步信号块中的物理广播信道的加扰序列；
    所述同步信号块的物理广播信道的负载；
    所述同步信号块与剩余最小系统信息的相对位置。
  5. 根据权利要求1所述的装置，其中，所述第一信号包括无线资源控制消息或介质访问控制控制元素或下行控制信息；所述终端设备根据所述无线资源控制消息中包括的第一信息确定在发送所述第二信号之前是否进行信道检测和/或如何进行信道检测。
  6. 根据权利要求1所述的装置，其中，所述第一信号包括无线资源控制消息；在所述无线资源控制消息中不包括第一信息的情况下，所述终端设备在发送所述第二信号之前不进行信道检测，或者，在所述无线资源控制消息中包括第一信息的情况下，所述 终端设备在发送所述第二信号之前不进行信道检测。
  7. 根据权利要求5所述的装置，其中，所述第一信息是小区特定的或者设备特定的；和/或，所述第一信息针对如下至少之一：系统、小区组、小区、载波、信道组、部分带宽、信道、波束、物理信道/信号、物理信道/信号承载的数据。
  8. 根据权利要求5所述的装置，其中，在工作频段为非授权频段的情况下，所述无线资源控制消息中能够包括所述第一信息；在工作频段为授权频段的情况下，所述无线资源控制消息中不能够包括所述第一信息。
  9. 根据权利要求8所述的装置，其中，所述第一信号包括同步信号块和所述无线资源控制消息，所述同步信号块用于所述终端设备确定所述工作频段为非授权频段，或者，所述同步信号块用于所述终端设备确定所述工作频段为授权频段；和/或
    所述无线资源控制消息中包括第二信息，所述第二信息用于指示工作频段；或者，所述第一信号还用于指示工作频段。
  10. 根据权利要求1所述的装置，其中，在所述第一信号指示工作频段为授权频段的情况下，所述终端设备在发送所述第二信号之前不进行信道检测；或者，
    在所述第一信号指示所述工作频段为非授权频段的情况下，所述终端设备在发送所述第二信号之前进行信道检测，和/或，确定在发送所述第二信号之前如何进行信道检测。
  11. 根据权利要求1所述的装置，其中，所述第一信号用于指示信道接入模式；所述信道接入模式包括不进行信道检测的模式，和/或，所述信道接入模式还包括动态信道接入模式和/或半静态信道接入模式。
  12. 根据权利要求11所述的装置，其中，在所述第一信号指示所述信道接入模式为不进行信道检测的情况下，无线资源控制消息中能够包括用于指示工作频段的第二信息，或者，在所述第一信号指示信道接入模式不为不进行信道检测的情况下，所述无线资源控制消息中不能够包括用于指示工作频段的第二信息。
  13. 根据权利要求1所述的装置，其中，所述第一信号用于指示信道接入类型；所述信道接入类型包括不进行信道检测的类型，和/或，所述信道接入类型还包括进行信道检测的类型。
  14. 根据权利要求7所述的装置，其中，所述上行资源是无线资源控制消息配置的，或者，所述上行资源是下行控制信息或随机接入响应调度的且所述下行控制信息或随机接入响应中不包括用于指示信道接入类型的信息域，
    在所述第一信息没有指示不进行信道检测的情况下，所述终端设备采用预定义或预 配置的信道接入类型发送所述第二信号。
  15. 根据权利要求7所述的装置，其中，所述上行资源是无线资源控制消息配置的，在所述第一信息没有指示不进行信道检测的情况下，所述终端设备采用预定义或预配置的信道接入类型发送所述第二信号，或者，所述终端设备采用第三信息指示的信道接入类型发送所述第二信号。
  16. 根据权利要求7所述的装置，其中，所述上行资源是无线资源控制消息配置的，或者，所述上行资源是下行控制信息或随机接入响应调度的且所述下行控制信息或随机接入响应中不包括用于指示信道接入类型的信息域；
    所述第一信息用于指示信道接入类型，所述终端设备采用所述第一信息指示的信道接入类型发送所述第二信号。
  17. 根据权利要求15所述的装置，其中，所述第二信号为物理上行共享信道，所述第一信息和/或所述第三信息包括在配置授权的配置信息中；
    或者，所述第二信号为探测参考信号，所述第一信息或者所述第三信息包括在所述探测参考信号的配置信息中；
    或者，所述第二信号为物理随机接入信道，所述第一信息或者所述第三信息包括在所述物理随机接入信道的配置信息中；
    或者，所述第二信号为物理上行控制信道，所述第一信息或者所述第三信息包括在所述物理上行控制信道的配置信息或者调度请求的配置信息中或者信道状态信息的配置信息中。
  18. 根据权利要求1所述的装置，其中，所述上行资源由下行控制信息或随机接入响应调度，在所述第一信号指示不进行信道检测的情况下，所述终端设备确定用于调度所述上行资源的下行控制信息或随机接入响应中不包括用于指示信道接入类型的信息域，并且所述终端设备在发送所述第二信号之前不进行信道检测；
    或者，所述上行资源由下行控制信息或随机接入响应调度，在所述第一信号没有指示不进行信道检测的情况下，所述终端设备还根据第四信息确定用于调度所述上行资源的下行控制信息或随机接入响应中包括的用于指示信道接入类型的信息域，所述第四信息至少用于指示所述下行控制信息或随机接入响应能够指示的信道接入类型；
    或者，所述终端设备采用所述下行控制信息或随机接入响应指示的信道接入类型发送所述第二信号，或者，在所述第四信息指示一种信道接入类型的情况下，采用所述第四信息指示的信道接入类型发送所述第二信号。
  19. 一种上行信号的接收装置，配置于网络设备，所述装置包括：
    发送单元，其向终端设备发送第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及
    接收单元，其接收所述终端设备使用上行资源发送的所述第二信号。
  20. 一种通信系统，包括：
    终端设备，其接收第一信号，所述第一信号至少用于所述终端设备确定在发送第二信号之前是否进行信道检测和/或如何进行信道检测；以及使用上行资源发送所述第二信号；以及
    网络设备，其发送所述第一信号并接收所述第二信号。
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