WO2020169003A1 - 控制信号的发送方法及传输节点 - Google Patents

控制信号的发送方法及传输节点 Download PDF

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Publication number
WO2020169003A1
WO2020169003A1 PCT/CN2020/075574 CN2020075574W WO2020169003A1 WO 2020169003 A1 WO2020169003 A1 WO 2020169003A1 CN 2020075574 W CN2020075574 W CN 2020075574W WO 2020169003 A1 WO2020169003 A1 WO 2020169003A1
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WIPO (PCT)
Prior art keywords
control signal
transmission
sending
target
short
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Ceased
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PCT/CN2020/075574
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English (en)
French (fr)
Inventor
沈晓冬
潘学明
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Publication date
Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Publication of WO2020169003A1 publication Critical patent/WO2020169003A1/zh
Priority to US17/408,350 priority Critical patent/US12082246B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

Definitions

  • the present disclosure relates to the field of communication technology, in particular to a method for sending control signals and a transmission node.
  • LBT Listen Before Talk
  • CCA channel idle estimation
  • eCCA extended Clear Channel Assess
  • LBT Type 1 (Cat 1): Direct transmission without any CCA; it can be used when the transmission conversion interval is less than 16us when the channel has been obtained;
  • LBT Type 2 (Cat 2): Perform 25us channel listening; it can be used for specific signal acquisition channels, and the maximum continuous transmission length should be less than a certain value, such as 1ms;
  • LBT Type 4 (Cat 4): Channel listening with fusion random backoff. Different priority parameters are set differently, and the maximum transmission length after the channel is finally obtained is also different.
  • the LBT may not be used to send short control signals (Short control signaling).
  • the restriction is that the duty cycle is less than or equal to 5% within a certain observation time (no specific value is specified).
  • the number of short control signals sent is less than or equal to 50;
  • the total transmission time of the short control signal is less than or equal to 2500us.
  • the restriction condition is that the duty cycle is less than or equal to 1%, and relevant discussions are still continuing.
  • the 5G unlicensed communication system refers to the short control signal mechanism to transmit control signals.
  • the embodiments of the present disclosure provide a method for sending a control signal and a transmission node to solve the problem of how to transmit a control signal with reference to a transmission mechanism of a short control signal in the related art.
  • a method for sending control signals, applied to a transmission node includes:
  • the first control signal is transmitted by using the type 1 LBT after listening, or the first control signal is transmitted by using the type 2 LBT for channel sensing.
  • One control signal is transmitted.
  • the embodiment of the present disclosure also provides a transmission node, including:
  • the first sending module is used to send the first control signal by using the type 1 LBT to send the first control signal or using the type 2 LBT for channeling when the transmission of the first control signal meets the transmission restriction condition of the short control signal Send the first control signal after listening.
  • the embodiment of the present disclosure also provides a transmission node, including a processor, a memory, and a program stored on the memory and capable of running on the processor.
  • a transmission node including a processor, a memory, and a program stored on the memory and capable of running on the processor.
  • the embodiments of the present disclosure also provide a computer-readable storage medium with a program stored on the computer-readable storage medium, and when the program is executed by a processor, the steps of the method for sending a control signal as described above are realized.
  • the short control signal transmission mechanism performs LBT and transmits the first control signal, and makes full use of the short control signal transmission mechanism of the unlicensed frequency band to improve the transmission performance of the control signal.
  • FIG. 1 shows a schematic diagram of the steps of a method for sending a control signal provided by an embodiment of the present disclosure
  • FIG. 2 shows one of the schematic diagrams of the target observation window in the control signal sending method provided by the embodiment of the present disclosure
  • FIG. 3 shows the second schematic diagram of the target observation window in the control signal sending method provided by the embodiment of the present disclosure
  • FIG. 4 shows the third schematic diagram of the target observation window in the control signal sending method provided by the embodiment of the present disclosure
  • FIG. 5 shows one of the schematic structural diagrams of a transmission node provided by an embodiment of the present disclosure
  • Fig. 6 shows the second structural diagram of a transmission node provided by an embodiment of the present disclosure.
  • words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present disclosure should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
  • an embodiment of the present disclosure provides a method for sending a control signal, which is applied to a transmission node, and includes:
  • Step 101 In the case that the transmission of the first control signal meets the transmission restriction condition of the short control signal, use the type 1 LBT to send the first control signal after listening or the type 2 LBT to send the channel after listening The first control signal.
  • the transmission of the control signal provided in the embodiment of the present disclosure is the transmission of the control signal of an unlicensed frequency band.
  • the short control signal specifically refers to a signal that can be sent by a higher priority LBT that meets certain restriction conditions (such as a duty cycle, etc.).
  • the transmission of the first control signal meets the transmission restriction condition of the short control signal, it indicates that the transmission of the first control signal can perform LBT with reference to the transmission mechanism of the short control signal.
  • the first control signal is sent according to the short control signal sending mechanism.
  • Sending the first control signal after channel listening using Type 2 LBT specifically refers to: performing channel listening for 25us before sending the first control signal. If it is judged that the channel is empty, follow the short control signal sending mechanism Send the first control signal; if it is determined that the channel is not empty, the first control signal is not sent.
  • the method further includes:
  • the first control signal is transmitted after performing channel sensing using the type 4 LBT.
  • the embodiments of the present disclosure provide a method of using Type 4 LBT to perform channel sensing and then sending the first control signal, that is, before sending the first control signal, perform channel sensing combining random backoff. If it is determined that the channel is empty, the first control signal is sent; if it is determined that the channel is not empty, the first control signal is not sent.
  • the embodiments of the present disclosure provide at least two ways to determine whether the transmission of the first control signal meets the transmission restriction conditions of the short control signal before the first control signal is transmitted, specifically:
  • Manner 1 Before sending the first control signal, determine whether the sending of the first control signal meets the short control signal's sending information by judging whether the sending information of the target signal in the target observation window meets the sending restriction condition of the short control signal Send restrictions.
  • Manner 2 Before sending the first control signal, determine whether the sending of the first control signal satisfies the short control signal by judging whether the position to be sent of the first control signal is in the silent period of other short control signals Send restrictions.
  • the method further includes:
  • the target signal includes: the signal that has been sent according to the short control signal in the target observation window and the first control signal.
  • the determining that the transmission of the first control signal meets the transmission restriction condition of the short control signal according to the transmission information of the target signal in the target observation window includes:
  • the method further includes:
  • the target signal includes: the signal that has been sent according to the short control signal in the target observation window and the first control signal.
  • the determining that the transmission of the first control signal does not meet the transmission restriction condition of the short control signal according to the transmission information of the target signal in the target observation window includes:
  • the transmission information of the target signal in the target observation window does not meet the transmission restriction condition of the short control signal, it is determined that the transmission of the first control signal does not satisfy the transmission restriction condition of the short control signal.
  • the transmission restriction condition of the short control signal includes at least one of the following:
  • the ratio between the total transmission time of the target signal and the total time of the target observation window is less than or equal to a first preset value; the first preset value is the maximum value of the transmission restriction condition of the control signal
  • the duty cycle such as 1%, 5%, etc., is not specifically limited here.
  • the total number of target signals sent is less than or equal to the second preset value and the total sending time of the target signals is less than or equal to the third preset value.
  • the total sending time of the target signal includes: the sum of the sending time of the signal that has been sent according to the short control signal and the sending time of the first control signal in the target observation window.
  • the total number of target signals sent includes: the number of signals sent according to the short control signal in the target observation window plus one.
  • the method further includes:
  • the target observation window is determined according to the configuration of static or semi-static configuration information, or the agreement of the protocol.
  • the target observation window is determined to be: a preset time length forward of the position to be sent of the first control signal.
  • the target observation window determined according to the position to be sent of the first control signal and the preset time length of the target observation window may be called a sliding observation window.
  • the shaded part in FIG. 3 is the position to be sent of the first control signal. If the preset time length is equal to 50 ms, the target observation window is 50 ms forward of the position to be sent of the first control signal.
  • the method further includes:
  • the silent period of other short control signals is: a target time length from the time when the other short control signals are sent.
  • the determining that the transmission of the first control signal satisfies the transmission restriction condition of the short control signal according to the position to be transmitted of the first control signal and the silence period of other short control signals includes:
  • the method further includes:
  • the silent period of the short control signal is: a target time length from the moment when the short control signal is sent.
  • the determining that the transmission of the first control signal does not meet the transmission restriction condition of the short control signal according to the position to be transmitted of the first control signal and the silence period of other short control signals includes:
  • the method in the foregoing embodiment of the present disclosure further includes:
  • T T0/ ⁇ -T0.
  • Fig. 4 is a schematic diagram of the quiet period of a short control node.
  • the position to be sent of the first control signal when determining whether the position to be sent of the first control signal is in the silent period of other short control signals, the position to be sent of the first control signal may specifically be the desired position of the first control signal.
  • the sending start position may also be the end position of the first control signal to be sent, or the time period of the first control signal to be sent, which is not specifically limited here.
  • the above-mentioned first control signal may be a downlink control signal (for example, a dedicated reference signal (DRS), a physical downlink control channel (PDCCH) transmission) or an uplink control signal (for example, physical Random Access Channel (Physical Random Access Channel, PRACH), Scheduling Request (SR), Physical Uplink Control Channel (Physical Uplink Control Channel, PUCCH) transmission, etc.).
  • the aforementioned first control signal may be a control signal or multiple control signals of the transmission node; there is no specific limitation here.
  • the foregoing embodiments of the present disclosure determine whether the transmission of the first control signal satisfies the transmission restriction condition of the short control signal before transmitting the first control signal, so that the transmission restriction condition of the short control signal is satisfied. , Refer to the short control signal transmission mechanism to perform LBT and send the first control signal, and make full use of the short control signal transmission mechanism of the unlicensed frequency band to improve the transmission performance of the control signal.
  • an embodiment of the present disclosure further provides a transmission node 500, including:
  • the first sending module 501 is configured to send the first control signal by using the type 1 LBT after listening before sending the first control signal or using the type 2 LBT when the transmission of the first control signal meets the transmission restriction conditions of the short control signal Send the first control signal after channel sensing.
  • the transmission node further includes:
  • the second sending module is configured to send the first control signal after channel sensing is performed by using the type 4 LBT when the sending of the first control signal does not meet the sending restriction condition of the short control signal.
  • the transmission node further includes:
  • a first determining module configured to determine that the sending of the first control signal meets the sending restriction condition of the short control signal according to the sending information of the target signal in the target observation window before sending the first control signal;
  • the target signal includes: the signal that has been sent according to the short control signal in the target observation window and the first control signal.
  • the first determining module includes:
  • the first determining submodule is configured to determine that the transmission of the first control signal meets the transmission restriction condition of the short control signal when the transmission information of the target signal in the target observation window meets the transmission restriction condition of the short control signal.
  • the transmission node further includes:
  • the second determining module is configured to determine that the sending of the first control signal does not meet the sending restriction condition of the short control signal according to the sending information of the target signal in the target observation window before sending the first control signal;
  • the target signal includes: the signal that has been sent according to the short control signal in the target observation window and the first control signal.
  • the second determining module includes:
  • the second determining sub-module is configured to determine that the transmission of the first control signal does not meet the transmission restriction condition of the short control signal when the transmission information of the target signal in the target observation window does not meet the transmission restriction condition of the short control signal .
  • the transmission restriction condition of the short control signal includes at least one of the following:
  • a ratio between the total transmission time of the target signal and the total time of the target observation window is less than or equal to a first preset value
  • the total number of target signals sent is less than or equal to the second preset value and the total sending time of the target signals is less than or equal to the third preset value.
  • the transmission node further includes:
  • the third determining module is configured to determine the target observation window according to the time length and time position of the observation window configured by static or semi-static configuration information;
  • the target observation window is used to determine the target observation window as: a preset length of time forward of the position to be sent of the first control signal according to the position to be sent of the first control signal and the preset time length of the target observation window.
  • the transmission node further includes:
  • the fourth determining module is configured to determine that the sending of the first control signal satisfies the sending of the short control signal according to the position to be sent of the first control signal and the silence period of other short control signals before sending the first control signal limitation factor;
  • the silent period of other short control signals is: a target time length from the time when the other short control signals are sent.
  • the fourth determining module includes:
  • the fourth determining submodule is configured to determine that the transmission of the first control signal meets the transmission restriction condition of the short control signal when the position to be transmitted of the first control signal is not in the silent period of other short control signals.
  • the transmission node further includes:
  • the fifth determining module is configured to determine that the sending of the first control signal does not meet the requirements of the short control signal according to the position to be sent of the first control signal and the silence period of other short control signals before sending the first control signal Sending restrictions;
  • the silent period of the short control signal is: a target time length from the time when the short control signal is sent.
  • the fifth determining module includes:
  • the fifth determining submodule is configured to determine that the transmission of the first control signal does not meet the transmission restriction condition of the short control signal when the position to be sent of the first control signal is in the silent period of other short control signals.
  • the transmission node further includes:
  • the sixth determining module is configured to determine the target time length T according to the time length T0 of the short control signal and the maximum duty cycle ⁇ of the transmission restriction condition of the short control signal;
  • T T0/ ⁇ -T0.
  • the transmission node provided by the embodiment of the present disclosure can implement each process implemented by the transmission node in the method embodiments of FIG. 1 to FIG. 4. In order to avoid repetition, details are not described herein again.
  • the foregoing embodiments of the present disclosure determine whether the transmission of the first control signal satisfies the transmission restriction condition of the short control signal before transmitting the first control signal, so that the transmission restriction condition of the short control signal is satisfied. , Refer to the short control signal transmission mechanism to perform LBT and send the first control signal, and make full use of the short control signal transmission mechanism of the unlicensed frequency band to improve the transmission performance of the control signal.
  • the transmission node provided by the embodiments of the present disclosure is a transmission node capable of executing the above-mentioned method for sending control signals, and all the embodiments of the above-mentioned method for sending control signals are applicable to the transmission node, and can achieve the same or Similar beneficial effects.
  • the transmission node 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, and a display unit 606, a user input unit 607, an interface unit 608, a memory 609, a processor 610, a power supply 611 and other components.
  • a radio frequency unit 601 for example, a radio frequency unit 601
  • a network module 602 for example, a Wi-Fi Protected Access (WMA)
  • an audio output unit 603 an input unit 604
  • a sensor 605 a sensor
  • a display unit 606 a user input unit 607
  • an interface unit 608 a memory 609
  • a processor 610 a power supply 611 and other components.
  • transmission nodes include, but are not limited to, mobile phones, base stations, tablet computers, notebook computers, palmtop computers, vehicle-mounted terminals, wearable devices, and pedometers.
  • the processor 610 is configured to, when the transmission of the first control signal satisfies the transmission restriction condition of the short control signal, use a type 1 listen-before-sending LBT to send the first control signal or use a type 2 LBT to perform Send the first control signal after channel sensing.
  • the foregoing embodiments of the present disclosure determine whether the transmission of the first control signal satisfies the transmission restriction condition of the short control signal before transmitting the first control signal, so that the transmission restriction condition of the short control signal is satisfied. , Refer to the short control signal transmission mechanism to perform LBT and send the first control signal, and make full use of the short control signal transmission mechanism of the unlicensed frequency band to improve the transmission performance of the control signal.
  • the transmission node provided by the embodiments of the present disclosure is a transmission node capable of executing the above-mentioned method for sending control signals, and all the embodiments of the above-mentioned method for sending control signals are applicable to the transmission node, and can achieve the same or Similar beneficial effects.
  • the radio frequency unit 601 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, after receiving downlink data from the base station, it is processed by the processor 610; Uplink data is sent to the base station.
  • the radio frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 601 can also communicate with the network and other devices through a wireless communication system.
  • the transmission node provides users with wireless broadband Internet access through the network module 602, such as helping users to send and receive emails, browse web pages, and access streaming media.
  • the audio output unit 603 can convert the audio data received by the radio frequency unit 601 or the network module 602 or stored in the memory 609 into audio signals and output them as sounds. Moreover, the audio output unit 603 may also provide audio output related to a specific function performed by the transmission node 600 (for example, call signal reception sound, message reception sound, etc.).
  • the audio output unit 603 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 604 is used to receive audio or video signals.
  • the input unit 604 may include a graphics processing unit (GPU) 6041 and a microphone 6042.
  • the graphics processor 6041 is configured to monitor images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed.
  • the processed image frame may be displayed on the display unit 606.
  • the image frame processed by the graphics processor 6041 may be stored in the memory 609 (or other storage medium) or sent via the radio frequency unit 601 or the network module 602.
  • the microphone 6042 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be sent to the mobile communication base station via the radio frequency unit 601 for output in the case of a telephone call mode.
  • the transmission node 600 also includes at least one sensor 605, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 6061 according to the brightness of the ambient light.
  • the proximity sensor can turn off the display panel 6061 and the display panel when the transmission node 600 moves to the ear. / Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three axes), and can detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of the transmission node (such as horizontal and vertical screen switching, related games , Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, percussion), etc.; sensor 605 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, Infrared sensors, etc., will not be repeated here.
  • the display unit 606 is used to display information input by the user or information provided to the user.
  • the display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 607 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the transmission node.
  • the user input unit 607 includes a touch panel 6071 and other input devices 6072.
  • the touch panel 6071 also called a touch screen, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 6071 or near the touch panel 6071. operating).
  • the touch panel 6071 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 610, the command sent by the processor 610 is received and executed.
  • the touch panel 6071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave.
  • the user input unit 607 may also include other input devices 6072.
  • other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.
  • the touch panel 6071 may cover the display panel 6061.
  • the touch panel 6071 detects a touch operation on or near it, it is transmitted to the processor 610 to determine the type of the touch event, and then the processor 610 performs The type of touch event provides corresponding visual output on the display panel 6061.
  • the touch panel 6071 and the display panel 6061 are used as two independent components to implement the input and output functions of the transmission node, in some embodiments, the touch panel 6071 and the display panel 6061 can be integrated
  • the implementation of the input and output functions of the transmission node is not specifically limited here.
  • the interface unit 608 is an interface for connecting an external device with the transmission node 600.
  • the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc.
  • the interface unit 608 can be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the transmission node 600 or can be used to connect the transmission node 600 and external Transfer data between devices.
  • the memory 609 can be used to store software programs and various data.
  • the memory 609 may mainly include a storage program area and a storage data area.
  • the storage program area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data (such as audio data, phone book, etc.) created by the use of mobile phones.
  • the memory 609 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 610 is the control center of the transmission node. It uses various interfaces and lines to connect the various parts of the entire transmission node, by running or executing software programs and/or modules stored in the memory 609, and calling data stored in the memory 609 , Perform various functions of the transmission node and process data, so as to monitor the transmission node as a whole.
  • the processor 610 may include one or more processing units; optionally, the processor 610 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, and application programs, etc.
  • the adjustment processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 610.
  • the transmission node 600 may also include a power supply 611 (such as a battery) for supplying power to various components.
  • a power supply 611 such as a battery
  • the power supply 611 may be logically connected to the processor 610 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
  • the transmission node 600 includes some functional modules not shown, which will not be repeated here.
  • the embodiment of the present disclosure further provides a transmission node, including a processor, a memory, and a computer program stored in the memory and running on the processor, and the computer program is executed by the processor to realize the above-mentioned control signal
  • a transmission node including a processor, a memory, and a computer program stored in the memory and running on the processor, and the computer program is executed by the processor to realize the above-mentioned control signal
  • the embodiments of the present disclosure also provide a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium.
  • the computer readable storage medium such as read-only memory (Read-Only Memory, ROM for short), random access memory (Random Access Memory, RAM for short), magnetic disk or optical disk, etc.
  • the technical solution of the present disclosure essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to enable a transmission node (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the method described in each embodiment of the present disclosure.
  • a transmission node which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本公开提供一种控制信号的发送方法及传输节点，该方法包括：在第一控制信号的发送满足短控制信号的发送限制条件的情况下，采用类型1的LBT发送第一控制信号或者采用类型2的LBT进行信道侦听后发送第一控制信号。

Description

控制信号的发送方法及传输节点
相关申请的交叉引用
本申请主张在2019年2月22日在中国提交的中国专利申请号No.201910135539.0的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其是指一种控制信号的发送方法及传输节点。
背景技术
5G通信系统运行在非授权频段需遵循先听后发(Listen Before Talk，LBT)机制；即，在发送信息之前，终端或网络设备需要做信道空闲估计(Clear Channel Assess，CCA)或扩展信道空闲估计(extended Clear Channel Assess，eCCA)来侦听信道，即进行能量检测(Energy Detection，ED)。当能量低于一定门限时，信道被判断为空，方可开始传输。由于非授权频段是多种技术或多个传输节点共享，因此这种基于竞争的接入方式导致信道可用时间的不确定性。目前明确可用于5G非授权通信系统的LBT机制有以下三种：
LBT类型1(Cat 1)：不做任何CCA直接发送；在已经获得信道的情况下在传输转换的间隔小于16us的情况下可以使用；
LBT类型2(Cat 2)：进行25us的信道侦听；对特定信号获取信道可以使用，最大连续传输长度应该小于一定数值，例如1ms；
LBT类型4(Cat 4)：进行融合随机回退的信道侦听，对不同优先级参数设置不同，最后获得信道后可传输的最大长度也不同。
在非授权频段(例如5GHz)，对于传输节点，Regulation(规则)允许只要满足一定限制条件就可以不进行LBT发送短控制信号(Short control signaling)。
在一个版本中，限制条件为在一定观察时间内(未规定具体数值)占空比小于等于5％。
在另一个版本中，限制条件为以下两个：
在50ms的观察周期内，短控制信号发送的个数小于等于50；
在50ms的观察周期内，短控制信号的总发送时间小于等于2500us。
目前有提议进一步修改以上限制条件，例如限制条件为占空比小于等于1％，相关讨论仍在继续。
目前5G非授权通信系统如何参照短控制信号机制进行控制信号的传输是不明确的。
发明内容
本公开实施例提供一种控制信号的发送方法及传输节点，以解决相关技术中如何参照短控制信号的传输机制进行控制信号的传输的问题。
为了解决上述技术问题，本公开是这样实现的：一种控制信号的发送方法，应用于传输节点，包括：
在第一控制信号的发送满足短控制信号的发送限制条件的情况下，采用类型1的先听后发LBT发送所述第一控制信号或者采用类型2的LBT进行信道侦听后发送所述第一控制信号。
本公开实施例还提供了一种传输节点，包括：
第一发送模块，用于在第一控制信号的发送满足短控制信号的发送限制条件的情况下，采用类型1的先听后发LBT发送所述第一控制信号或者采用类型2的LBT进行信道侦听后发送所述第一控制信号。
本公开实施例还提供了一种传输节点，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如上所述的控制信号的发送方法的步骤。
本公开实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质上存储有程序，所述程序被处理器执行时实现如上所述的控制信号的发送方法的步骤。
在本公开实施例中，通过在发送所述第一控制信号之前确定第一控制信号的发送是否满足短控制信号的发送限制条件，可以实现在满足短控制信号的发送限制条件的情况下，参考短控制信号的发送机制进行LBT并发送第一 控制信号，充分利用非授权频段的短控制信号的发送机制来提高控制信号的传输性能。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例的描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1表示本公开实施例提供的控制信号的发送方法的步骤示意图；
图2表示本公开实施例提供的控制信号的发送方法中目标观测窗的示意图之一；
图3表示本公开实施例提供的控制信号的发送方法中目标观测窗的示意图之二；
图4表示本公开实施例提供的控制信号的发送方法中目标观测窗的示意图之三；
图5表示本公开实施例提供的传输节点的结构示意图之一；
图6表示本公开实施例提供的传输节点的结构示意图之二。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
在本公开实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本公开实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
如图1所示，本公开实施例提供一种控制信号的发送方法，应用于传输节点，包括：
步骤101，在第一控制信号的发送满足短控制信号的发送限制条件的情况下，采用类型1的先听后发LBT发送所述第一控制信号或者采用类型2的LBT进行信道侦听后发送所述第一控制信号。
可选的，本公开实施例提供的控制信号的发送为非授权频段的控制信号的发送。其中短控制信号具体指满足一定限制条件(例如占空比等)能够进行更高优先级的LBT发送的信号。
需要说明的是，若第一控制信号的发送满足短控制信号的发送限制条件，则表明第一控制信号的发送能够参考短控制信号的发送机制进行LBT。
具体的，采用类型1的LBT发送所述第一控制信号，具体指：不做信道空闲估计CCA，则按照短控制信号的发送机制发送所述第一控制信号。
采用类型2的LBT进行信道侦听后发送所述第一控制信号，具体指：在发送第一控制信号之前先进行25us的信道侦听，若判断信道为空，则按照短控制信号的发送机制发送所述第一控制信号；若判断信道不为空，则不发送所述第一控制信号。
可选的，所述方法还包括：
在第一控制信号的发送不满足短控制信号的发送限制条件情况下，采用类型4的LBT进行信道侦听后发送所述第一控制信号。
需要说明的是，若第一控制信号的发送不满足短控制信号的发送限制条件，则表明第一控制信号的发送不能够参考短控制信号的发送机制进行LBT。针对此种情况，本公开实施例提供一种采用类型4的LBT进行信道侦听后发送所述第一控制信号的方式，即在发送第一控制信号之前先进行融合随机回退的信道侦听，若判断信道为空，则发送所述第一控制信号；若判断信道不为空，则不发送所述第一控制信号。
承接上例，本公开实施例提供至少两种在发送所述第一控制信号之前确定第一控制信号的发送是否满足短控制信号的发送限制条件的方式，具体为：
方式一：在发送所述第一控制信号之前，通过判断目标观测窗内的目标信号的发送信息是否满足短控制信号的发送限制条件，确定所述第一控制信号的发送是否满足短控制信号的发送限制条件。
方式二：在发送所述第一控制信号之前，通过判断所述第一控制信号的 欲发送位置是否处于其他短控制信号的静默期，确定所述第一控制信号的发送是否满足短控制信号的发送限制条件。
作为一个可选实施例，针对方式一：
本公开实施例中，所述方法还包括：
在发送所述第一控制信号之前，根据目标观测窗内的目标信号的发送信息，确定第一控制信号的发送满足短控制信号的发送限制条件；
其中，目标信号包括：目标观测窗内已经按照短控制信号发送的信号以及第一控制信号。
可选的，所述根据目标观测窗内的目标信号的发送信息，确定第一控制信号的发送满足短控制信号的发送限制条件，包括：
在目标观测窗内的目标信号的发送信息满足短控制信号的发送限制条件的情况下，确定所述第一控制信号的发送满足短控制信号的发送限制条件。
本公开实施例中，所述方法还包括：
在发送所述第一控制信号之前，根据目标观测窗内的目标信号的发送信息，确定第一控制信号的发送不满足短控制信号的发送限制条件；
其中，目标信号包括：目标观测窗内已经按照短控制信号发送的信号以及第一控制信号。
可选的，所述根据目标观测窗内的目标信号的发送信息，确定第一控制信号的发送不满足短控制信号的发送限制条件，包括：
在目标观测窗内的目标信号的发送信息不满足短控制信号的发送限制条件的情况下，确定所述第一控制信号的发送不满足短控制信号的发送限制条件。
具体的，本公开的上述实施例中，所述短控制信号的发送限制条件包括下述至少之一：
所述目标观测窗内，目标信号的总发送时间与所述目标观测窗的总时间之间的比值小于或者等于第一预设值；该第一预设值为控制信号的发送限制条件的最大占空比，例如1％、5％等，在此不做具体限定。
所述目标观测窗内，目标信号的总发送个数小于或者等于第二预设值且所述目标信号的总发送时间小于或者等于第三预设值。
需要说明的是，目标信号的总发送时间包括：目标观测窗内已经按照短控制信号发送的信号的发送时间以及第一控制信号的发送时间之和。目标信号的总发送个数包括：目标观测窗内已经按照短控制信号发送的信号的发送个数加1。
可选的，本公开的上述实施例中，所述方法还包括：
根据静态或半静态的配置信息配置的观测窗的时间长度和时间位置，确定所述目标观测窗；或者，根据协议约定的观测窗的时间长度和时间位置，确定所述目标观测窗。
例如，如图2所示为根据静态或半静态的配置信息的配置，或者，协议的约定，确定的目标观测窗。
或者，根据第一控制信号的欲发送位置以及目标观测窗的预设时间长度，确定所述目标观测窗为：所述第一控制信号的欲发送位置往前的一个预设时间长度。
例如，如图3所示为根据第一控制信号的欲发送位置以及目标观测窗的预设时间长度确定的目标观测窗，该目标观测窗可称为滑动观测窗。图3中的阴影部分为第一控制信号的欲发送位置，若预设时间长度等于50ms，则目标观测窗为第一控制信号的欲发送位置往前的50ms。
作为另一个可选实施例，针对方式二：
本公开实施例中，所述方法还包括：
在发送所述第一控制信号之前，根据所述第一控制信号的欲发送位置以及其他短控制信号的静默期，确定第一控制信号的发送满足短控制信号的发送限制条件；
其中，其他短控制信号的静默期为：从所述其他短控制信号发送结束时刻起的一个目标时间长度。
可选的，所述根据所述第一控制信号的欲发送位置以及其他短控制信号的静默期，确定第一控制信号的发送满足短控制信号的发送限制条件，包括：
在所述第一控制信号的欲发送位置不处于其他短控制信号的静默期的情况下，确定第一控制信号的发送满足短控制信号的发送限制条件。
本公开实施例中，所述方法还包括：
在发送所述第一控制信号之前，根据所述第一控制信号的欲发送位置以及其他短控制信号的静默期，确定第一控制信号的发送不满足短控制信号的发送限制条件；
其中，短控制信号的静默期为：从所述短控制信号发送结束时刻起的一个目标时间长度。
可选的，所述根据所述第一控制信号的欲发送位置以及其他短控制信号的静默期，确定第一控制信号的发送不满足短控制信号的发送限制条件，包括：
在所述第一控制信号的欲发送位置处于其他短控制信号的静默期的情况下，确定第一控制信号的发送不满足短控制信号的发送限制条件。
可选的，本公开的上述实施例中所述方法还包括：
根据短控制信号的时间长度T0以及短控制信号的发送限制条件的最大占空比α，确定所述目标时间长度T；
其中，T＝T0/α-T0。
例如，如图4所示为短控制节点的静默期的示意图。
需要说明的是，本公开实施例中在判断所述第一控制信号的欲发送位置是否处于其他短控制信号的静默期时，第一控制信号的欲发送位置具体可以为第一控制信号的欲发送起始位置、也可以是第一控制信号的欲发送结束位置、还可以是第一控制信号的欲发送时间段，在此不做具体限定。
进一步需要说的是，上述第一控制信号可以为下行控制信号(例如用户参考信号(Dedicated Reference Signal，DRS)，物理下行控制信道(Physical Downlink Control Channel，PDCCH)传输)或者上行控制信号(例如物理随机接入信道(Physical Random Access Channel，PRACH)，调度请求(Scheduling Request，SR)，物理上行控制信道(Physical Uplink Control Channel，PUCCH)传输等)。上述第一控制信号可以为该传输节点的一种控制信号或者多种控制信号；在此不做具体限定。
综上，本公开的上述实施例通过在发送所述第一控制信号之前确定第一控制信号的发送是否满足短控制信号的发送限制条件，可以实现在满足短控制信号的发送限制条件的情况下，参考短控制信号的发送机制进行LBT并发 送第一控制信号，充分利用非授权频段的短控制信号的发送机制来提高控制信号的传输性能。
如图5所示，本公开实施例还提供一种传输节点500，包括：
第一发送模块501，用于在第一控制信号的发送满足短控制信号的发送限制条件的情况下，采用类型1的先听后发LBT发送所述第一控制信号或者采用类型2的LBT进行信道侦听后发送所述第一控制信号。
可选的，本公开的上述实施例中，所述传输节点还包括：
第二发送模块，用于在第一控制信号的发送不满足短控制信号的发送限制条件情况下，采用类型4的LBT进行信道侦听后发送所述第一控制信号。
可选的，本公开的上述实施例中，所述传输节点还包括：
第一确定模块，用于在发送所述第一控制信号之前，根据目标观测窗内的目标信号的发送信息，确定第一控制信号的发送满足短控制信号的发送限制条件；
其中，目标信号包括：目标观测窗内已经按照短控制信号发送的信号以及第一控制信号。
可选的，本公开的上述实施例中，所述第一确定模块包括：
第一确定子模块，用于在目标观测窗内的目标信号的发送信息满足短控制信号的发送限制条件的情况下，确定所述第一控制信号的发送满足短控制信号的发送限制条件。
可选的，本公开的上述实施例中，所述传输节点还包括：
第二确定模块，用于在发送所述第一控制信号之前，根据目标观测窗内的目标信号的发送信息，确定第一控制信号的发送不满足短控制信号的发送限制条件；
其中，目标信号包括：目标观测窗内已经按照短控制信号发送的信号以及第一控制信号。
可选的，本公开的上述实施例中，所述第二确定模块包括：
第二确定子模块，用于在目标观测窗内的目标信号的发送信息不满足短控制信号的发送限制条件的情况下，确定所述第一控制信号的发送不满足短控制信号的发送限制条件。
可选的，本公开的上述实施例中，所述短控制信号的发送限制条件包括下述至少之一：
所述目标观测窗内，目标信号的总发送时间与所述目标观测窗的总时间之间的比值小于或者等于第一预设值；
所述目标观测窗内，目标信号的总发送个数小于或者等于第二预设值且所述目标信号的总发送时间小于或者等于第三预设值。
可选的，本公开的上述实施例中，所述传输节点还包括：
第三确定模块，用于根据静态或半静态的配置信息配置的观测窗的时间长度和时间位置，确定所述目标观测窗；
或者，用于根据协议约定的观测窗的时间长度和时间位置，确定所述目标观测窗；
或者，用于根据第一控制信号的欲发送位置以及目标观测窗的预设时间长度，确定所述目标观测窗为：所述第一控制信号的欲发送位置往前的一个预设时间长度。
可选的，本公开的上述实施例中，所述传输节点还包括：
第四确定模块，用于在发送所述第一控制信号之前，根据所述第一控制信号的欲发送位置以及其他短控制信号的静默期，确定第一控制信号的发送满足短控制信号的发送限制条件；
其中，其他短控制信号的静默期为：从所述其他短控制信号发送结束时刻起的一个目标时间长度。
可选的，本公开的上述实施例中，所述第四确定模块包括：
第四确定子模块，用于在所述第一控制信号的欲发送位置不处于其他短控制信号的静默期的情况下，确定第一控制信号的发送满足短控制信号的发送限制条件。
可选的，本公开的上述实施例中，所述传输节点还包括：
第五确定模块，用于在发送所述第一控制信号之前，根据所述第一控制信号的欲发送位置以及其他短控制信号的静默期，确定第一控制信号的发送不满足短控制信号的发送限制条件；
其中，短控制信号的静默期为：从所述短控制信号发送结束时刻起的一 个目标时间长度。
可选的，本公开的上述实施例中，所述第五确定模块包括：
第五确定子模块，用于在所述第一控制信号的欲发送位置处于其他短控制信号的静默期的情况下，确定第一控制信号的发送不满足短控制信号的发送限制条件。
可选的，本公开的上述实施例中，所述传输节点还包括：
第六确定模块，用于根据短控制信号的时间长度T0以及短控制信号的发送限制条件的最大占空比α，确定所述目标时间长度T；
其中，T＝T0/α-T0。
本公开实施例提供的传输节点能够实现图1至图4的方法实施例中传输节点实现的各个过程，为避免重复，这里不再赘述。
综上，本公开的上述实施例通过在发送所述第一控制信号之前确定第一控制信号的发送是否满足短控制信号的发送限制条件，可以实现在满足短控制信号的发送限制条件的情况下，参考短控制信号的发送机制进行LBT并发送第一控制信号，充分利用非授权频段的短控制信号的发送机制来提高控制信号的传输性能。
需要说明的是，本公开实施例提供的传输节点是能够执行上述控制信号的发送方法的传输节点，则上述控制信号的发送方法的所有实施例均适用于该传输节点，且均能达到相同或相似的有益效果。
图6为实现本公开各个实施例的一种传输节点的硬件结构示意图，该传输节点600包括但不限于：射频单元601、网络模块602、音频输出单元603、输入单元604、传感器605、显示单元606、用户输入单元607、接口单元608、存储器609、处理器610、以及电源611等部件。本领域技术人员可以理解，图6中示出的传输节点结构并不构成对传输节点的限定，传输节点可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本公开实施例中，传输节点包括但不限于手机、基站、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。
其中，处理器610，用于在第一控制信号的发送满足短控制信号的发送限制条件的情况下，采用类型1的先听后发LBT发送所述第一控制信号或者 采用类型2的LBT进行信道侦听后发送所述第一控制信号。
综上，本公开的上述实施例通过在发送所述第一控制信号之前确定第一控制信号的发送是否满足短控制信号的发送限制条件，可以实现在满足短控制信号的发送限制条件的情况下，参考短控制信号的发送机制进行LBT并发送第一控制信号，充分利用非授权频段的短控制信号的发送机制来提高控制信号的传输性能。
需要说明的是，本公开实施例提供的传输节点是能够执行上述控制信号的发送方法的传输节点，则上述控制信号的发送方法的所有实施例均适用于该传输节点，且均能达到相同或相似的有益效果。
应理解的是，本公开实施例中，射频单元601可用于收发信息或通话过程中，信号的接收和发送，具体的，将来自基站的下行数据接收后，给处理器610处理；另外，将上行的数据发送给基站。通常，射频单元601包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元601还可以通过无线通信系统与网络和其他设备通信。
传输节点通过网络模块602为用户提供了无线的宽带互联网访问，如帮助用户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元603可以将射频单元601或网络模块602接收的或者在存储器609中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元603还可以提供与传输节点600执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元603包括扬声器、蜂鸣器以及受话器等。
输入单元604用于接收音频或视频信号。输入单元604可以包括图形处理器(Graphics Processing Unit，GPU)6041和麦克风6042，图形处理器6041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元606上。经图形处理器6041处理后的图像帧可以存储在存储器609(或其它存储介质)中或者经由射频单元601或网络模块602进行发送。麦克风6042可以接收声音，并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元601发送到移动通信基站的 格式输出。
传输节点600还包括至少一种传感器605，比如光传感器、运动传感器以及其他传感器。具体地，光传感器包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板6061的亮度，接近传感器可在传输节点600移动到耳边时，关闭显示面板6061和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别传输节点姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；传感器605还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等，在此不再赘述。
显示单元606用于显示由用户输入的信息或提供给用户的信息。显示单元606可包括显示面板6061，可以采用液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板6061。
用户输入单元607可用于接收输入的数字或字符信息，以及产生与传输节点的用户设置以及功能控制有关的键信号输入。具体地，用户输入单元607包括触控面板6071以及其他输入设备6072。触控面板6071，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板6071上或在触控面板6071附近的操作)。触控面板6071可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器610，接收处理器610发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板6071。除了触控面板6071，用户输入单元607还可以包括其他输入设备6072。具体地，其他输入设备6072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
可选的，触控面板6071可覆盖在显示面板6061上，当触控面板6071检 测到在其上或附近的触摸操作后，传送给处理器610以确定触摸事件的类型，随后处理器610根据触摸事件的类型在显示面板6061上提供相应的视觉输出。虽然在图6中，触控面板6071与显示面板6061是作为两个独立的部件来实现传输节点的输入和输出功能，但是在某些实施例中，可以将触控面板6071与显示面板6061集成而实现传输节点的输入和输出功能，具体此处不做限定。
接口单元608为外部装置与传输节点600连接的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元608可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到传输节点600内的一个或多个元件或者可以用于在传输节点600和外部装置之间传输数据。
存储器609可用于存储软件程序以及各种数据。存储器609可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器609可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器610是传输节点的控制中心，利用各种接口和线路连接整个传输节点的各个部分，通过运行或执行存储在存储器609内的软件程序和/或模块，以及调用存储在存储器609内的数据，执行传输节点的各种功能和处理数据，从而对传输节点进行整体监控。处理器610可包括一个或多个处理单元；可选的，处理器610可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器610中。
传输节点600还可以包括给各个部件供电的电源611(比如电池)，可选的，电源611可以通过电源管理系统与处理器610逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外，传输节点600包括一些未示出的功能模块，在此不再赘述。
可选的，本公开实施例还提供一种传输节点，包括处理器，存储器，存储在存储器上并可在所述处理器上运行的计算机程序，该计算机程序被处理器执行时实现上述控制信号的发送方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本公开实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述控制信号的发送方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，简称ROM)、随机存取存储器(Random Access Memory，简称RAM)、磁碟或者光盘等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一个传输节点(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本公开各个实施例所述的方法。
上面结合附图对本公开的实施例进行了描述，但是本公开并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本公开的启示下，在不脱离本公开宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本公开的保护之内。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易 想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以权利要求的保护范围为准。

Claims (28)

  1. 一种控制信号的发送方法，应用于传输节点，包括：
    在第一控制信号的发送满足短控制信号的发送限制条件的情况下，采用类型1的先听后发LBT发送所述第一控制信号或者采用类型2的LBT进行信道侦听后发送所述第一控制信号。
  2. 根据权利要求1所述的方法，还包括：
    在第一控制信号的发送不满足短控制信号的发送限制条件情况下，采用类型4的LBT进行信道侦听后发送所述第一控制信号。
  3. 根据权利要求1所述的方法，还包括：
    在发送所述第一控制信号之前，根据目标观测窗内的目标信号的发送信息，确定第一控制信号的发送满足短控制信号的发送限制条件；
    其中，目标信号包括：目标观测窗内已经按照短控制信号发送的信号以及第一控制信号。
  4. 根据权利要求3所述的方法，其中，所述根据目标观测窗内的目标信号的发送信息，确定第一控制信号的发送满足短控制信号的发送限制条件，包括：
    在目标观测窗内的目标信号的发送信息满足短控制信号的发送限制条件的情况下，确定所述第一控制信号的发送满足短控制信号的发送限制条件。
  5. 根据权利要求2所述的方法，还包括：
    在发送所述第一控制信号之前，根据目标观测窗内的目标信号的发送信息，确定第一控制信号的发送不满足短控制信号的发送限制条件；
    其中，目标信号包括：目标观测窗内已经按照短控制信号发送的信号以及第一控制信号。
  6. 根据权利要求5所述的方法，其中，所述根据目标观测窗内的目标信号的发送信息，确定第一控制信号的发送不满足短控制信号的发送限制条件，包括：
    在目标观测窗内的目标信号的发送信息不满足短控制信号的发送限制条件的情况下，确定所述第一控制信号的发送不满足短控制信号的发送限制条 件。
  7. 根据权利要求3-6任一项所述的方法，其中，所述短控制信号的发送限制条件包括下述至少之一：
    所述目标观测窗内，目标信号的总发送时间与所述目标观测窗的总时间之间的比值小于或者等于第一预设值；
    所述目标观测窗内，目标信号的总发送个数小于或者等于第二预设值且所述目标信号的总发送时间小于或者等于第三预设值。
  8. 根据权利要求3-6任一项所述的方法，还包括：
    根据静态或半静态的配置信息配置的观测窗的时间长度和时间位置，确定所述目标观测窗；
    或者，
    根据协议约定的观测窗的时间长度和时间位置，确定所述目标观测窗；
    或者，
    根据第一控制信号的欲发送位置以及目标观测窗的预设时间长度，确定所述目标观测窗为：所述第一控制信号的欲发送位置往前的一个预设时间长度。
  9. 根据权利要求1所述的方法，还包括：
    在发送所述第一控制信号之前，根据所述第一控制信号的欲发送位置以及其他短控制信号的静默期，确定第一控制信号的发送满足短控制信号的发送限制条件；
    其中，其他短控制信号的静默期为：从所述其他短控制信号发送结束时刻起的一个目标时间长度。
  10. 根据权利要求9所述的方法，其中，所述根据所述第一控制信号的欲发送位置以及其他短控制信号的静默期，确定第一控制信号的发送满足短控制信号的发送限制条件，包括：
    在所述第一控制信号的欲发送位置不处于其他短控制信号的静默期的情况下，确定第一控制信号的发送满足短控制信号的发送限制条件。
  11. 根据权利要求2所述的方法，还包括：
    在发送所述第一控制信号之前，根据所述第一控制信号的欲发送位置以 及其他短控制信号的静默期，确定第一控制信号的发送不满足短控制信号的发送限制条件；
    其中，短控制信号的静默期为：从所述短控制信号发送结束时刻起的一个目标时间长度。
  12. 根据权利要求11所述的方法，其中，所述根据所述第一控制信号的欲发送位置以及其他短控制信号的静默期，确定第一控制信号的发送不满足短控制信号的发送限制条件，包括：
    在所述第一控制信号的欲发送位置处于其他短控制信号的静默期的情况下，确定第一控制信号的发送不满足短控制信号的发送限制条件。
  13. 根据权利要求9-12任一项所述的方法，还包括：
    根据短控制信号的时间长度T0以及短控制信号的发送限制条件的最大占空比α，确定所述目标时间长度T；
    其中，T＝T0/α-T0。
  14. 一种传输节点，包括：
    第一发送模块，用于在第一控制信号的发送满足短控制信号的发送限制条件的情况下，采用类型1的先听后发LBT发送所述第一控制信号或者采用类型2的LBT进行信道侦听后发送所述第一控制信号。
  15. 根据权利要求14所述的传输节点，还包括：
    第二发送模块，用于在第一控制信号的发送不满足短控制信号的发送限制条件情况下，采用类型4的LBT进行信道侦听后发送所述第一控制信号。
  16. 根据权利要求14所述的传输节点，还包括：
    第一确定模块，用于在发送所述第一控制信号之前，根据目标观测窗内的目标信号的发送信息，确定第一控制信号的发送满足短控制信号的发送限制条件；
    其中，目标信号包括：目标观测窗内已经按照短控制信号发送的信号以及第一控制信号。
  17. 根据权利要求16所述的传输节点，其中，所述第一确定模块包括：
    第一确定子模块，用于在目标观测窗内的目标信号的发送信息满足短控制信号的发送限制条件的情况下，确定所述第一控制信号的发送满足短控制 信号的发送限制条件。
  18. 根据权利要求15所述的传输节点，还包括：
    第二确定模块，用于在发送所述第一控制信号之前，根据目标观测窗内的目标信号的发送信息，确定第一控制信号的发送不满足短控制信号的发送限制条件；
    其中，目标信号包括：目标观测窗内已经按照短控制信号发送的信号以及第一控制信号。
  19. 根据权利要求18所述的传输节点，其中，所述第二确定模块包括：
    第二确定子模块，用于在目标观测窗内的目标信号的发送信息不满足短控制信号的发送限制条件的情况下，确定所述第一控制信号的发送不满足短控制信号的发送限制条件。
  20. 根据权利要求16-19任一项所述的传输节点，其中，所述短控制信号的发送限制条件包括下述至少之一：
    所述目标观测窗内，目标信号的总发送时间与所述目标观测窗的总时间之间的比值小于或者等于第一预设值；
    所述目标观测窗内，目标信号的总发送个数小于或者等于第二预设值且所述目标信号的总发送时间小于或者等于第三预设值。
  21. 根据权利要求16-19任一项所述的传输节点，还包括：
    第三确定模块，用于根据静态或半静态的配置信息配置的观测窗的时间长度和时间位置，确定所述目标观测窗；
    或者，用于根据协议约定的观测窗的时间长度和时间位置，确定所述目标观测窗；
    或者，用于根据第一控制信号的欲发送位置以及目标观测窗的预设时间长度，确定所述目标观测窗为：所述第一控制信号的欲发送位置往前的一个预设时间长度。
  22. 根据权利要求14所述的传输节点，还包括：
    第四确定模块，用于在发送所述第一控制信号之前，根据所述第一控制信号的欲发送位置以及其他短控制信号的静默期，确定第一控制信号的发送满足短控制信号的发送限制条件；
    其中，其他短控制信号的静默期为：从所述其他短控制信号发送结束时刻起的一个目标时间长度。
  23. 根据权利要求22所述的传输节点，其中，所述第四确定模块包括：
    第四确定子模块，用于在所述第一控制信号的欲发送位置不处于其他短控制信号的静默期的情况下，确定第一控制信号的发送满足短控制信号的发送限制条件。
  24. 根据权利要求15所述的传输节点，还包括：
    第五确定模块，用于在发送所述第一控制信号之前，根据所述第一控制信号的欲发送位置以及其他短控制信号的静默期，确定第一控制信号的发送不满足短控制信号的发送限制条件；
    其中，短控制信号的静默期为：从所述短控制信号发送结束时刻起的一个目标时间长度。
  25. 根据权利要求24所述的传输节点，其中，所述第五确定模块包括：
    第五确定子模块，用于在所述第一控制信号的欲发送位置处于其他短控制信号的静默期的情况下，确定第一控制信号的发送不满足短控制信号的发送限制条件。
  26. 根据权利要求22-25任一项所述的传输节点，还包括：
    第六确定模块，用于根据短控制信号的时间长度T0以及短控制信号的发送限制条件的最大占空比α，确定所述目标时间长度T；
    其中，T＝T0/α-T0。
  27. 一种传输节点，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如权利要求1至13中任一项所述的控制信号的发送方法的步骤。
  28. 一种计算机可读存储介质，所述计算机可读存储介质上存储有程序，所述程序被处理器执行时实现如权利要求1至13中任一项所述的控制信号的发送方法的步骤。
PCT/CN2020/075574 2019-02-22 2020-02-17 控制信号的发送方法及传输节点 Ceased WO2020169003A1 (zh)

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