WO2021243711A1 - 信道接入方法、信道接入装置及存储介质 - Google Patents

信道接入方法、信道接入装置及存储介质 Download PDF

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Publication number
WO2021243711A1
WO2021243711A1 PCT/CN2020/094720 CN2020094720W WO2021243711A1 WO 2021243711 A1 WO2021243711 A1 WO 2021243711A1 CN 2020094720 W CN2020094720 W CN 2020094720W WO 2021243711 A1 WO2021243711 A1 WO 2021243711A1
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WIPO (PCT)
Prior art keywords
channel
listening
mode
listen
channel access
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PCT/CN2020/094720
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English (en)
French (fr)
Inventor
董贤东
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北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2020/094720 priority Critical patent/WO2021243711A1/zh
Priority to US17/999,795 priority patent/US20230199834A1/en
Priority to EP20939172.1A priority patent/EP4164320A4/en
Priority to CN202080001218.2A priority patent/CN114073160A/zh
Publication of WO2021243711A1 publication Critical patent/WO2021243711A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a channel access method, a channel access device, and a storage medium.
  • the sender In the discussion and design of the R16 New Radio-Unlicensed (NR-U) standard, the sender generally performs clear channel assessment (CCA) before sending data, and is evaluated based on the CCA test results
  • CCA clear channel assessment
  • the interference level in the channel that is, the channel occupation mechanism of listen before talk (LBT) is used for data transmission.
  • the LBT mechanism is as follows: if the interference level in the channel is lower than the detection threshold (the detection threshold is specified by the communication protocol), the sender determines that the channel is idle, and the sender can occupy the channel to send data. If the channel interference level is higher than the detection threshold, the sender determines that the channel is busy, and the sender will not be able to occupy the channel to send data.
  • the future NR-U spectrum will be deployed on higher frequency unlicensed spectrum, such as higher frequency spectrum above 50GHz.
  • higher frequency spectrum such as higher frequency spectrum above 50GHz.
  • the present disclosure provides a channel access method, a channel access device and a storage medium.
  • a channel access method including: configuring a listen-before-speak channel occupancy mode.
  • the listen-before-speak channel occupancy mode includes that there is no need to perform idle channel detection before sending data. ; Send the configuration information of the channel occupation mode after listening first.
  • a channel access method including:
  • the listen-before-speak channel occupancy mode includes the need to perform idle channel detection before sending data .
  • a channel access device including:
  • the processing unit is configured to configure a listen-before-speak channel occupation mode.
  • the listen-before-speak channel occupation mode includes that there is no need to perform idle channel detection before sending data; the sending unit is configured to send the listen-before-speak Configuration information of the channel occupation mode.
  • a channel access device including:
  • the receiving unit is configured to receive the configuration information of the listen-before-speak channel occupancy mode; the processing unit is configured to determine the configured listen-before-speak channel occupancy mode based on the configuration information, the listen-before-speak channel occupancy mode It includes that there is no need to perform idle channel detection before sending data.
  • a channel access device which is characterized in that it includes:
  • a memory for storing processor executable instructions
  • the processor is configured to execute the channel access method described in the first aspect.
  • a channel access device including:
  • a memory for storing processor executable instructions
  • the processor is configured to execute the channel access method described in the second aspect.
  • a non-transitory computer-readable storage medium When instructions in the storage medium are executed by a processor of a network device, the network device can execute the instructions described in the first aspect. Channel access method.
  • a non-transitory computer-readable storage medium When instructions in the storage medium are executed by a processor of a mobile terminal, the mobile terminal can execute the instructions in the second aspect. Channel access method.
  • the technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: by configuring the channel occupation mode of listening before speaking that does not require idle channel detection before sending data, it is possible to achieve both on unlicensed spectrum where interference is not serious.
  • the configuration of the channel occupancy mode that effectively avoids interference and improves transmission efficiency.
  • Fig. 1 is a schematic diagram showing a communication system according to an exemplary embodiment.
  • Fig. 2 is a schematic diagram showing a cat2 channel detection according to an exemplary embodiment.
  • Fig. 3 is a schematic diagram showing a cat4 channel detection according to an exemplary embodiment.
  • Fig. 4 is a flowchart showing a channel access method according to an exemplary embodiment.
  • Fig. 5 is a flow chart showing a method for channel access according to an exemplary embodiment.
  • Fig. 6 is a flowchart showing a channel access method according to an exemplary embodiment.
  • Fig. 7 is a block diagram showing a channel access device according to an exemplary embodiment.
  • Fig. 8 is a block diagram showing a channel access device according to an exemplary embodiment.
  • Fig. 9 is a block diagram showing a device for channel access according to an exemplary embodiment.
  • Fig. 10 is a block diagram showing a device for channel access according to an exemplary embodiment.
  • the information sending method provided by the embodiments of the present disclosure can be applied to the wireless communication system shown in FIG. 1.
  • the wireless communication system includes terminals and network equipment. Information is sent and received between the terminal and the network device through wireless resources.
  • the wireless communication system shown in FIG. 1 is only for schematic illustration, and the wireless communication system may also include other network equipment, such as core network equipment, wireless relay equipment, and wireless backhaul equipment. Not shown in Figure 1.
  • the embodiments of the present disclosure do not limit the number of network devices and the number of terminals included in the wireless communication system.
  • the wireless communication system of the embodiments of the present disclosure is a network that provides wireless communication functions.
  • Wireless communication systems can use different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA) , Frequency Division Multiple Access (FDMA), Orthogonal Frequency-Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (Single Carrier FDMA, SC-FDMA), Carrier Sense Multiple access/conflict avoidance (Carrier Sense Multiple Access with Collision Avoidance).
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • TDMA time division multiple access
  • OFDMA Orthogonal Frequency-Division Multiple Access
  • Single Carrier Frequency Division Multiple Access Single Carrier Frequency Division Multiple Access
  • SC-FDMA SC-FDMA
  • Carrier Sense Multiple access/conflict avoidance Carrier Sense Multiple Access with Collision Avoidance
  • the network can be divided into 2G (English: generation) network, 3G network, 4G network or future evolution network, such as 5G network, 5G network can also be called a new wireless network ( New Radio, NR).
  • 2G English: generation
  • 3G network 4G network or future evolution network, such as 5G network
  • 5G network can also be called a new wireless network ( New Radio, NR).
  • New Radio NR
  • the wireless communication network is sometimes referred to as a network for short in this disclosure.
  • the network device involved in the present disclosure may also be referred to as a wireless access network device.
  • the wireless access network equipment may be: a base station, an evolved base station (evolved node B, base station), a home base station, an access point (AP) in a wireless fidelity (wireless fidelity, WIFI) system, and a wireless relay Nodes, wireless backhaul nodes, transmission points (transmission and reception points, TRP), etc., can also be the gNB in the NR system, or can be a component or part of the equipment that constitutes the base station Wait.
  • the network device may also be a vehicle-mounted device. It should be understood that, in the embodiments of the present disclosure, the specific technology and specific device form adopted by the network device are not limited.
  • the terminal involved in this disclosure may also be referred to as terminal equipment, user equipment (UE), mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal, MT), etc., which are A device that provides voice and/or data connectivity.
  • the terminal may be a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • some examples of terminals are: smart phones (Mobile Phone), Pocket Computers (Pocket Personal Computer, PPC), handheld computers, Personal Digital Assistants (PDAs), notebook computers, tablet computers, wearable devices, or Vehicle equipment, etc.
  • the terminal device may also be a vehicle-mounted device.
  • V2X vehicle-to-vehicle
  • the terminal device may also be a vehicle-mounted device. It should be understood that the embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal.
  • the end before the terminal and the network device send information, the end (network device or terminal) as the information sending end uses the LBT channel occupancy mechanism to perform CCA, and the sending end sends the information after the CCA is successful.
  • the LBT mechanism is used to control interference on unlicensed frequency bands to ensure the equal coexistence of multiple access methods, for example, to ensure the coexistence of the two systems of WiFi and NR-U.
  • the LBT mechanism can also ensure that resources are shared between different sites in the same system.
  • the specific process is: the wireless communication device performs a single-slot CCA listening. If the CCA time slot detects that the channel is idle, the wireless communication device can immediately access the channel. If the CCA time slot detects that the channel is busy, the wireless communication device waits for the next CCA time slot to listen again, and can access the channel immediately after the channel is free.
  • the channel detection mechanism of cat4 is based on CCA with random backoff, and the implementation process is shown in Figure 3.
  • the wireless communication device uniformly randomly generates a backoff counter N between 0 and the contention window size (CWS), and listens with the CCA slot as the granularity. If the detection is performed in the listening slot When the channel is idle, the backoff counter is decremented by one; otherwise, if the channel is detected to be busy, the backoff counter is suspended, that is, the backoff counter N remains unchanged during the channel busy time until the channel is detected to be idle. When the backoff counter is reduced to 0, the wireless communication device can immediately occupy the channel.
  • the CWS of Cat.4 is a dynamically adjusted value.
  • the wireless communication device dynamically adjusts the CWS according to whether the previous transmission is correctly received by the receiving node. In this way, an appropriate CWS value can be obtained according to the channel state and network traffic load adjustment, and a compromise can be achieved between reducing collisions between sending nodes and improving channel access efficiency.
  • the network device configures the terminal with a radio resource control (Radio Resource Control, RRC) layer signaling that the terminal may use.
  • RRC Radio Resource Control
  • One or more LBT methods one LBT method is, for example, LBT Cat type, channel occupation priority (the priority of channel occupation can be used to determine CWS and the maximum length of channel occupation, etc.), cyclic prefix (CP) extension, etc. A combination of multiple parameters.
  • the network device instructs, in the downlink/uplink scheduling instruction, an LBT mode that is actually used when scheduling the terminal for downlink reception/uplink transmission this time.
  • the NR-U system in the current agreement is deployed on 5-7GHz.
  • the future NR-U spectrum will be deployed on a higher frequency spectrum, such as a frequency spectrum higher than 50GHz.
  • a higher frequency spectrum such as a frequency spectrum higher than 50GHz.
  • the signal transmission loss at high frequencies increases significantly, there is no serious mutual interference between different nodes even if they are relatively close.
  • unlicensed spectrum networks with controllable interference for example, in the deployment of large factories, the locations of various network equipment and terminals are relatively fixed, and because the network environment inside the factory is controllable, the inside of the factory is not authorized There is no other interference on the frequency band.
  • the interference is not serious.
  • Using the existing NR-U to configure the LBT through the RRC layer signaling configuration and then through the scheduling instructions to configure the LBT will reduce the transmission efficiency.
  • how to configure the terminal to perform LBT in order to effectively avoid interference and improve transmission efficiency is a technical problem that needs to be solved urgently.
  • the embodiment of the present disclosure provides a channel access method.
  • the configuration includes the LBT mode that does not require CCA before sending data, so that CCA is not performed when the interference is not serious, etc., and CCA is not required, which effectively avoids interference and improves Transmission efficiency.
  • Fig. 4 is a flowchart showing a channel access method according to an exemplary embodiment. As shown in Fig. 4, the channel access method is used in a network device and includes the following steps.
  • step S11 the LBT mode is configured.
  • the configured LBT mode includes that no CCA is required before data is sent. It is understandable that in the embodiment of the present disclosure, the configured LBT mode may also include the need to perform CCA before sending data.
  • the configured LBT mode includes configuration information on whether CCA is performed before sending data, and the configuration may be based on actual communication conditions.
  • the network device can determine the interference level generated by the terminal sending data based on the network deployment, and when the network device configures the LBT mode, it can determine the interference level generated by the terminal sending data based on the network deployment, and configure the LBT mode. For example, for the network deployment in a large indoor factory, the spacing and configuration between network devices are preset, and the network device can determine the level of interference caused by the data sent by the terminal.
  • the LBT mode of configuring the terminal includes that no CCA is required before sending the data.
  • the LBT mode for configuring the terminal includes the need to perform CCA before sending the data.
  • the network equipment can be configured with different LBT methods.
  • the terminal in the center of the cell is far away from the network equipment and terminals in other cells.
  • the terminal in the cell center will not cause interference to other cells when sending data, and the terminal in the cell can realize no interference between the terminals in the cell through the scheduling of network equipment. Therefore, when the network device configures the LBT mode for the terminal, it can configure the terminal's uplink transmission to "do not perform LBT", that is, it does not need to perform CCA before sending data.
  • the network equipment configures the LBT mode, configure the cell-edge terminals with the LBT mode that requires CCA before sending data.
  • the network device configures the LBT mode of the terminal based on the LBT recommended mode reported by the terminal.
  • the LBT recommended manner reported by the terminal may be determined based on the interference measurement result and/or the degree of interference in historical data transmission. For example, the terminal can determine whether LBT is required or what type of LBT is required by measuring the interference around the terminal or according to the degree of interference in the historical downlink reception, and send the recommended LBT method to the network through high-level signaling equipment.
  • the recommended LBT method includes that CCA is not required before sending data.
  • the recommended method of LBT includes the need to perform CCA before sending data, and includes the specific method of LBT, such as cat2 or cat4.
  • step S12 LBT configuration information is sent.
  • the network device sending the configuration information in the LBT mode to the terminal may adopt different modes based on the type of scheduling data transmission (dynamic scheduling or semi-static configuration).
  • LBT configuration information is sent based on RRC signaling.
  • the LBT mode can be directly configured through RRC layer signaling.
  • the configured LBT mode can also include "no LBT". "No LBT" means that the sender (base station or terminal) does not need to perform CCA before sending data.
  • one or more LBT modes are configured based on RRC signaling, and one or more LBT modes are activated through downlink control information (DCI) kind of.
  • the terminal can be configured with one or more LBT methods that the terminal may use through RRC layer signaling.
  • the configuration of cat2, cat4, etc. requires LBT mode and no LBT mode, etc., and DCI indicates not to perform LBT Mode
  • the LBT mode for the semi-statically configured data indicated by the DCI is the non-LBT mode, that is, the CCA does not need to be performed before the data is sent.
  • one or more LBT modes are configured based on RRC signaling, and one of the one or more LBT modes is indicated through a dynamic scheduling instruction.
  • the network device configures the terminal with one or more LBT modes that the terminal may use through RRC layer signaling.
  • the LBT mode is configured In addition to the LBT method in the existing agreement, it can also be "no LBT". Then, the network device instructs the terminal to perform downlink reception/uplink transmission this time in the downlink/uplink scheduling instruction to actually use an LBT mode, and the indicated LBT mode may be "no LBT".
  • the network device is configured with an LBT mode that does not require CCA before sending data, and sends the configuration information of the LBT mode to the terminal.
  • the terminal receives the configuration information of the LBT mode, and based on the configuration information, determines the LBT mode that does not require CCA before sending data, and then does not perform LBT when the interference is not serious, etc., which does not require CCA, which effectively avoids interference And improve the transmission efficiency.
  • Fig. 5 is a flowchart showing a channel access method according to an exemplary embodiment. As shown in Fig. 5, the channel access method is used in a terminal and includes the following steps.
  • step S21 LBT configuration information is received.
  • the configuration information of the LBT mode received by the terminal may be configured and sent by the network device based on the network deployment or the LBT recommended mode reported by the terminal.
  • step S22 based on the received configuration information, the configured LBT mode is determined, and the LBT mode includes that no CCA is required before sending data.
  • Fig. 6 is a flowchart showing a channel access method according to an exemplary embodiment. As shown in Fig. 6, the channel access method is used in a terminal and includes the following steps.
  • step S31 an LBT recommendation method is reported, where the LBT recommendation method includes that no CCA is required before sending data.
  • the LBT recommended method is determined based on the interference measurement results and/or the degree of interference in historical data transmission.
  • step S32 LBT configuration information is received.
  • step S33 based on the received configuration information, the configured LBT mode is determined, and the LBT mode includes that no CCA is required before sending data.
  • the terminal receives the configuration information of the LBT and determines the configured LBT manner based on the received configuration information. Different manners may be adopted according to the data transmission type (dynamic scheduling or semi-static configuration) configured by the terminal.
  • the configured LBT mode is determined based on RRC signaling.
  • one or more configured LBT modes are determined based on RRC signaling, and one of the one or more LBT modes activated by DCI is determined It is the configured LBT mode.
  • one or more configured LBT modes are determined based on RRC signaling, and one of the one or more LBT modes indicated by the dynamic scheduling instruction is determined as LBT mode of configuration.
  • the channel access method provided in the embodiments of the present disclosure is also applicable to the process of interaction between the terminal and the network device.
  • the terminal report includes an LBT recommendation method that does not perform CCA before sending data.
  • the network device configures the LBT mode based on the recommended LBT mode reported by the terminal, and the configured LBT mode includes not performing CCA before sending data.
  • the network device sends the configuration information in the LBT mode to the terminal.
  • the terminal receives the configuration information of the LBT mode sent by the network device, and determines based on the configuration information to include the LBT mode that does not perform CCA before sending data, and directly accesses the channel without performing CCA before accessing the channel in the subsequent communication process.
  • the network device configures the LBT mode based on network deployment, and the configured LBT mode includes not performing CCA before sending data.
  • the network device sends the configuration information in the LBT mode to the terminal.
  • the terminal receives the configuration information of the LBT mode sent by the network device, and determines based on the configuration information to include the LBT mode that does not perform CCA before sending data, and directly accesses the channel without performing CCA before accessing the channel in the subsequent communication process.
  • the embodiment of the present disclosure also provides a channel access device.
  • the channel access device provided in the embodiments of the present disclosure includes hardware structures and/or software modules corresponding to each function.
  • the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Those skilled in the art can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the technical solutions of the embodiments of the present disclosure.
  • Fig. 7 is a block diagram showing a channel access device according to an exemplary embodiment.
  • the channel access device 100 includes a processing unit 101 and a sending unit 102.
  • the processing unit 101 is configured to configure the LBT mode, and the LBT mode includes that there is no need to perform CCA before sending data.
  • the sending unit 102 is configured to send LBT configuration information.
  • the processing unit 101 is configured to configure the LBT mode in the following manner:
  • the LBT mode of configuring the terminal includes that no CCA is required before sending the data.
  • processing unit 101 is configured to configure the LBT mode in the following manner:
  • the recommended method of LBT includes that there is no need to perform CCA before sending data.
  • the sending unit 102 is configured to send configuration information in LBT mode:
  • LBT configuration information is sent based on RRC signaling.
  • the sending unit 102 is configured to send the configuration information in the LBT mode in the following manner:
  • one or more LBT modes are configured based on RRC signaling, and one of the one or more LBT modes is activated through DCI.
  • the sending unit 102 is configured to send the configuration information in the LBT mode in the following manner:
  • one or more LBT modes are configured based on RRC signaling, and one of the one or more LBT modes is indicated through a dynamic scheduling instruction.
  • Fig. 8 is a block diagram showing a channel access device according to an exemplary embodiment.
  • the channel access device 200 includes a receiving unit 201 and a processing unit 202.
  • the receiving unit 201 is configured to receive configuration information in the LBT mode.
  • the processing unit 202 is configured to determine the configured LBT mode based on the configuration information.
  • the LBT mode includes that no CCA is required before sending data.
  • the channel access device 200 further includes a sending unit 203, and the sending unit 203 is further configured to:
  • the LBT recommendation method is determined based on the interference measurement result and/or the degree of interference in historical data transmission.
  • the processing unit 202 is configured to determine the configured LBT manner in the following manner:
  • the configured LBT mode is determined based on RRC signaling.
  • the processing unit 202 is configured to determine the configured LBT manner in the following manner:
  • one or more configured LBT modes are determined based on RRC signaling, and one of the one or more LBT modes activated by DCI is determined as the configured LBT mode.
  • the processing unit 202 is configured to determine the configured LBT manner in the following manner:
  • one or more configured LBT modes are determined based on RRC signaling, and one of the one or more LBT modes indicated by the dynamic scheduling instruction is determined as the configured LBT mode.
  • Fig. 9 is a block diagram showing a device 300 for channel access according to an exemplary embodiment.
  • the device 300 may be a mobile phone, a computer, a digital broadcasting terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
  • the device 300 may include one or more of the following components: a processing component 302, a memory 304, a power component 306, a multimedia component 308, an audio component 310, an input/output (I/O) interface 312, a sensor component 314, and Communication component 316.
  • the processing component 302 generally controls the overall operations of the device 300, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 302 may include one or more processors 320 to execute instructions to complete all or part of the steps of the foregoing method.
  • the processing component 302 may include one or more modules to facilitate the interaction between the processing component 302 and other components.
  • the processing component 302 may include a multimedia module to facilitate the interaction between the multimedia component 308 and the processing component 302.
  • the memory 304 is configured to store various types of data to support the operation of the device 300. Examples of such data include instructions for any application or method operating on the device 300, contact data, phone book data, messages, pictures, videos, etc.
  • the memory 304 can be implemented by any type of volatile or non-volatile storage devices or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable and Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic Disk or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable and Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic Disk Magnetic Disk or Optical Disk.
  • the power component 306 provides power to various components of the device 300.
  • the power component 306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 300.
  • the multimedia component 308 includes a screen that provides an output interface between the device 300 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touch, sliding, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure related to the touch or slide operation.
  • the multimedia component 308 includes a front camera and/or a rear camera. When the device 300 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 310 is configured to output and/or input audio signals.
  • the audio component 310 includes a microphone (MIC), and when the device 300 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive an external audio signal.
  • the received audio signal can be further stored in the memory 304 or sent via the communication component 316.
  • the audio component 310 further includes a speaker for outputting audio signals.
  • the I/O interface 312 provides an interface between the processing component 302 and a peripheral interface module.
  • the above-mentioned peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include but are not limited to: home button, volume button, start button, and lock button.
  • the sensor component 314 includes one or more sensors for providing the device 300 with various aspects of state evaluation.
  • the sensor component 314 can detect the open/close state of the device 300 and the relative positioning of components.
  • the component is the display and the keypad of the device 300.
  • the sensor component 314 can also detect the position change of the device 300 or a component of the device 300. , The presence or absence of contact between the user and the device 300, the orientation or acceleration/deceleration of the device 300, and the temperature change of the device 300.
  • the sensor assembly 314 may include a proximity sensor configured to detect the presence of nearby objects when there is no physical contact.
  • the sensor component 314 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 314 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • the communication component 316 is configured to facilitate wired or wireless communication between the apparatus 300 and other devices.
  • the device 300 can access a wireless network according to a communication standard, such as WiFi, 2G, or 3G, or a combination thereof.
  • the communication component 316 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 316 further includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the apparatus 300 may be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic component is used to implement the above method.
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • DSPD digital signal processing devices
  • PLD programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor, or other electronic component is used to implement the above method.
  • non-transitory computer-readable storage medium including instructions, such as the memory 304 including instructions, which may be executed by the processor 320 of the device 300 to complete the foregoing method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
  • Fig. 10 is a block diagram showing a device 400 for channel access according to an exemplary embodiment.
  • the apparatus 400 may be provided as a network device, such as a base station or the like.
  • the apparatus 400 includes a processing component 422, which further includes one or more processors, and a memory resource represented by the memory 432, for storing instructions that can be executed by the processing component 422, such as application programs.
  • the application program stored in the memory 432 may include one or more modules each corresponding to a set of instructions.
  • the processing component 422 is configured to execute instructions to perform the above-mentioned methods.
  • the device 400 may also include a power component 426 configured to perform power management of the device 400, a wired or wireless network interface 450 configured to connect the device 400 to a network, and an input output (I/O) interface 458.
  • the device 400 can operate according to an operating system stored in the memory 432, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.
  • non-transitory computer-readable storage medium including instructions, such as the memory 432 including instructions, which may be executed by the processing component 422 of the device 400 to complete the foregoing method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
  • plural refers to two or more than two, and other quantifiers are similar.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • the singular forms “a”, “said” and “the” are also intended to include plural forms, unless the context clearly indicates other meanings.
  • first, second, etc. are used to describe various information, but the information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not indicate a specific order or degree of importance. In fact, expressions such as “first” and “second” can be used interchangeably.
  • first information may also be referred to as second information
  • second information may also be referred to as first information.

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Abstract

本公开是关于一种信道接入方法、信道接入装置及存储介质。信道接入方法，包括：配置先听后说信道占用方式，所述先听后说信道占用方式中包括在发送数据之前不需要进行空闲信道检测；发送所述先听后说信道占用方式的配置信息。本公开通过配置包括在发送数据之前不需要进行空闲信道检测的先听后说信道占用方式，可以在干扰并不严重的非授权频谱上实现既有效避免干扰又提升传输效率的先听后说信道占用方式的配置。

Description

信道接入方法、信道接入装置及存储介质 技术领域
本公开涉及通信技术领域，尤其涉及信道接入方法、信道接入装置及存储介质。
背景技术
在R16新无线技术非授权频谱(New Radio–Unlicensed，NR-U)标准讨论和设计中，发送端在发送数据之前一般都要进行空闲信道检测(clear channel assessment，CCA)，根据CCA检测结果评估信道中的干扰水平，也即采用先听后说(listen before talk，LBT)的信道占用机制进行数据的发送。LBT机制如下：如果信道中的干扰水平低于检测门限(该检测门限由通信协议规定)，则发送端确定信道空闲，发送端可以占用信道发送数据。如果信道干扰水平高于检测门限，则发送端确定信道繁忙，发送端将不能占用信道发送数据。
未来的NR-U频谱将部署在频率更高的非授权频谱上，例如高于50GHz的高频谱上。当部署在高频谱上时，由于高频上信号传输损耗明显增大，不同的节点之间即使距离较近也不存在严重的相互间干扰。对于干扰并不严重的非授权频谱，如何配置终端进行LBT的方式，才能既有效避免干扰又提升传输效率，是亟需解决的技术问题。
发明内容
为克服相关技术中存在的问题，本公开提供一种信道接入方法、信道接入装置及存储介质。
根据本公开实施例的第一方面，提供一种信道接入方法，包括：配置先听后说信道占用方式，所述先听后说信道占用方式中包括在发送数据之前不需要进行空闲信道检测；发送所述先听后说信道占用方式的配置信息。
根据本公开实施例第二方面，提供一种信道接入方法，包括：
接收先听后说信道占用方式的配置信息；基于所述配置信息，确定配置的先听后说信道占用方式，所述先听后说信道占用方式中包括在发送数据之前不需要进行空闲信道检测。
根据本公开实施例第三方面，提供一种信道接入装置，包括：
处理单元，被配置为配置先听后说信道占用方式，所述先听后说信道占用方式中包括在发送数据之前不需要进行空闲信道检测；发送单元，被配置为发送所述先听后说信道占用方式的配置信息。
根据本公开实施例第四方面，提供一种信道接入装置，包括：
接收单元，被配置为接收先听后说信道占用方式的配置信息；处理单元，被配置为基 于所述配置信息，确定配置的先听后说信道占用方式，所述先听后说信道占用方式中包括在发送数据之前不需要进行空闲信道检测。
根据本公开实施例第五方面，提供一种信道接入装置，其特征在于，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：执行第一方面中所述的信道接入方法。
根据本公开实施例第六方面，提供一种信道接入装置，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为：执行第二方面中所述的信道接入方法。
根据本公开实施例第七方面，提供一种非临时性计算机可读存储介质，当所述存储介质中的指令由网络设备的处理器执行时，使得网络设备能够执行第一方面中所述的信道接入方法。
根据本公开实施例第八方面，提供一种非临时性计算机可读存储介质，当所述存储介质中的指令由移动终端的处理器执行时，使得移动终端能够执行第二方面中所述的信道接入方法。
本公开的实施例提供的技术方案可以包括以下有益效果：通过配置包括在发送数据之前不需要进行空闲信道检测的先听后说信道占用方式，可以在干扰并不严重的非授权频谱上实现既有效避免干扰又提升传输效率的先听后说信道占用方式的配置。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种通信系统示意图。
图2是根据一示例性实施例示出的一种cat2信道检测示意图。
图3是根据一示例性实施例示出的一种cat4信道检测示意图。
图4是根据一示例性实施例示出的一种信道接入方法的流程图。
图5是根据一示例性实施例示出的一种信道接入方法的流程图。
图6是根据一示例性实施例示出的一种信道接入方法的流程图。
图7是根据一示例性实施例示出的一种信道接入装置的框图。
图8是根据一示例性实施例示出的一种信道接入装置的框图。
图9是根据一示例性实施例示出的一种用于信道接入的装置的框图。
图10是根据一示例性实施例示出的一种用于信道接入的装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
本公开实施例提供的信息发送方法可应用于图1所示的无线通信系统中。参阅图1所示，该无线通信系统中包括终端和网络设备。终端和网络设备之间通过无线资源进行信息的发送与接收。
可以理解的是，图1所示的无线通信系统仅是进行示意性说明，无线通信系统中还可包括其它网络设备，例如还可以包括核心网设备、无线中继设备和无线回传设备等，在图1中未画出。本公开实施例对该无线通信系统中包括的网络设备数量和终端数量不做限定。
进一步可以理解的是，本公开实施例的无线通信系统，是一种提供无线通信功能的网络。无线通信系统可以采用不同的通信技术，例如码分多址(code division multiple access,CDMA)、宽带码分多址(wideband code division multiple access，WCDMA)、时分多址(time division multiple access，TDMA)、频分多址(frequency division multiple access，FDMA)、正交频分多址(orthogonal frequency-division multiple access，OFDMA)、单载波频分多址(single Carrier FDMA，SC-FDMA)、载波侦听多路访问/冲突避免(Carrier Sense Multiple Access with Collision Avoidance)。根据不同网络的容量、速率、时延等因素可以将网络分为2G(英文：generation)网络、3G网络、4G网络或者未来演进网络，如5G网络，5G网络也可称为是新无线网络(New Radio，NR)。为了方便描述，本公开有时会将无线通信网络简称为网络。
进一步的，本公开中涉及的网络设备也可以称为无线接入网设备。该无线接入网设备可以是：基站、演进型基站(evolved node B，基站)、家庭基站、无线保真(wireless fidelity，WIFI)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为NR系统中的gNB，或者，还可以是构成基站的组件或一部分设备等。当为车联网(V2X)通信系统时，网络设备还可以是车载设备。应理解，本公开的实施例中，对网络设备所采用的具体技术和具体设备形态不做限定。
进一步的，本公开中涉及的终端，也可以称为终端设备、用户设备(User Equipment，UE)、移动台(Mobile Station，MS)、移动终端(Mobile Terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备，例如，终端可以是具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：智能手机(Mobile Phone)、口袋计算机(Pocket Personal Computer，PPC)、掌上电脑、个人数字助理(Personal Digital Assistant，PDA)、笔记本电脑、平板电脑、可穿戴设备、或者车载设备等。此外，当为车联网(V2X)通信系统时，终端设备还可以是车载设备。应理解，本公开实施例对终端所采用的具体技术和具体设备形态不做限定。
相关技术中，终端与网络设备进行信息发送之前，作为信息发送端的一端(网络设备或终端)采用LBT的信道占用机制进行CCA，发送端在CCA成功以后发送信息。
LBT机制是用来控制非授权频段上的干扰，保证多种接入方式的平等共存，例如保证WiFi与NR-U的两种系统的共存。LBT机制也能保证在同一个系统中，不同站点之间共享资源。LBT的方式有很多种，例如在NR-U系统中常用的第二类LBT(Category 2 LBT，Cat2)、第四类LBT(Category 4 LBT，Cat4)。
对于cat2的信道检测机制，如图2所示，具体流程是：无线通信设备执行一个单时隙的CCA侦听，如果CCA时隙检测到信道空闲，则无线通信设备可以立即接入信道。如果CCA时隙检测到信道忙碌，无线通信设备则等待下一个CCA时隙再次进行侦听，直到信道空闲后可以立即接入信道。
对于cat4的信道检测机制，是基于随机回退的CCA，实现过程如图3所示。无线通信设备在0～竞争窗长度(Contention Window Size，CWS)之间均匀随机生成一个回退计数器N，并且以侦听时隙(CCA slot)为粒度进行侦听，如果侦听时隙内检测到信道空闲，则将回退计数器减一，反之检测到信道忙碌，则将回退计数器挂起，即回退计数器N在信道忙碌时间内保持不变，直到检测到信道空闲。当回退计数器减为0时无线通信设备可以立即占用该信道。Cat.4的CWS是动态调整的值，无线通信设备根据之前的传输是否被接收节点正确接收，动态调整CWS。这样可以根据信道状态和网络业务负载调整得到合适的CWS取值，在减小发送节点间碰撞和提升信道接入效率之间取得折中。例如图3所示，第一次下行PDSCH传输对应的CWS＝15，第一次下行传输时，用户未能成功接收PDSCH，因此网络设备根据这一错误接收状态将CWS取值调高至CWS＝31，并在第二次下行PDSCH传输之前采用这一调高的CWS生成随机数N并进行信道侦听。
在NR-U中，对于通过下行/上行调度指令动态调度或激活的PDSCH/PUSCH传输，网络设备通过无线资源控制(Radio Resource Control，RRC)层信令给终端配置该终端可能 会使用到的一种或者多种LBT方式，一种LBT方式是例如LBT Cat类型，信道占用优先级(信道占用的优先级可以用来确定CWS以及信道占用最大时长等)，循环前缀(cyclic prefix，CP)扩展等多个参数的一个组合。然后网络设备在通过下行/上行调度指令中指示该次调度该终端进行下行接收/上行发送时实际使用的一种LBT方式。
当前协议中NR-U系统是部署在5-7GHz上的。未来的NR-U频谱将部署在更高的频谱上，例如高于50GHz的频谱上。当部署在高频上时，由于高频上信号传输损耗明显增大，不同的节点之间即使距离较近也不存在严重的相互间干扰。另外，对于干扰可控的非授权频谱网络，例如在大型工厂的部署上，各个网络设备和终端的位置都是相对固定的，且由于工厂内部的网络环境是可控的，工厂内部在非授权频段上不存在其他干扰。
对于在高频段部署的干扰可控的非授权频谱系统，干扰并不严重，采用已有NR-U中通过RRC层信令配置再通过调度指令指示的方式配置LBT，会降低传输效率，故对于干扰并不严重的非授权频谱，如何配置终端进行LBT的方式，才能既有效避免干扰又提升传输效率，是亟需解决的技术问题。
本公开实施例提供一种信道接入方法，配置包括在发送数据之前不需要进行CCA的LBT方式，进而使得在干扰并不严重等不需要进行CCA场景下不进行CCA，既有效避免干扰又提升传输效率。
图4是根据一示例性实施例示出的一种信道接入方法的流程图，如图4所示，信道接入方法用于网络设备中，包括以下步骤。
在步骤S11中，配置LBT方式。
本公开实施例中，配置的LBT方式中包括在发送数据之前不需要进行CCA。可以理解的是，本公开实施例中，配置的LBT方式中也可包括在发送数据之前需要进行CCA。
其中，配置的LBT方式中包括发送数据之前进行CCA与否的配置信息，可以是基于实际通信条件进行配置。
一种实施方式中，网络设备基于网络部署可以确定终端发送数据产生的干扰水平，进而网络设备在配置LBT方式时，可以基于网络部署确定终端发送数据产生的干扰水平，配置LBT方式。例如，针对室内大型工厂内的网络部署中，网络设备之间的间距，配置等都是预先设定好的，网络设备可以确定出终端发送数据产生的干扰水平。
响应于基于网络部署确定终端发送数据产生的干扰水平小于检测门限，则配置终端的LBT方式中包括在发送数据之前不需要进行CCA。响应于基于网络部署确定终端发送数据产生的干扰水平大于或等于检测门限，则配置终端的LBT方式中包括在发送数据之前需要进行CCA。
一示例中，对于一个小区中的多个终端，网络设备可以配置不同的LBT方式，例如在小区中心的终端，由于其距离其他小区的网络设备和终端距离较远，因而在高频情况下该在小区中心的终端发送数据不会对其他小区造成干扰，而本小区内的终端可以通过网络设备的调度实现本小区内终端之间无干扰。故，网络设备在为终端配置LBT方式时，可以配置该终端的上行传输“不进行LBT”，即在发送数据之前不需要进行CCA。对于小区边缘的终端，由于距离相邻小区比较近，可能会对相邻小区产生干扰，所以网络设备配置LBT方式时，为小区边缘终端配置在发送数据之前需要进行CCA的LBT方式。
另一种实施方式中，网络设备基于终端上报的LBT推荐方式，配置终端的LBT方式。终端上报的LBT推荐方式可以基于干扰测量结果和/或历史数据传输干扰程度确定。例如，终端可以通过对本终端周围的干扰的测量，或者根据历史的下行接收受干扰的程度判断是否需要进行LBT，或者进行何种方式的LBT，并将推荐的LBT方式通过高层信令发送给网络设备。一示例中，LBT推荐方式中包括在发送数据之前不需要进行CCA。另一示例中，LBT推荐方式中包括在发送数据之前需要进行CCA，并且包括了LBT的具体方式，例如cat2或cat4。
在步骤S12中，发送LBT方式的配置信息。
本公开实施例中网络设备向终端发送LBT方式的配置信息，可以基于调度数据传输的类型(动态调度或者半静态配置)采用不同的方式。
一种实施方式中，针对半静态配置的数据传输，基于RRC信令发送LBT方式的配置信息。
一示例中，在非授权频段的系统中，对于半静态配置下行传输/上行传输，例如半持续下行传输(semi-persistent Physical Downlink Shared channel，SPS PDSCH)或者配置授权的上行传输(configured grant Physical Uplink Shared channel，CG-PUSCH)，可以通过RRC层信令直接配置LBT方式，所配置的LBT方式除了已有协议中的LBT方式外，还可以包括“不进行LBT”。“不进行LBT”也即发送端(基站或者终端)在发送数据之前不需要进行CCA。
另一种实施方式中，针对半静态配置的数据传输，基于RRC信令配置一种或多种LBT方式，并通过下行控制信令(downlink control information，DCI)激活一种或多种LBT方式中的一种。例如可以通过RRC层信令给终端配置该终端可能会使用到的一种或者多种LBT方式，例如，配置cat2、cat4等需要进行LBT方式以及不进行LBT方式等，并通过DCI指示不进行LBT方式，则针对该DCI指示的半静态配置的数据的LBT方式为不进行LBT方式，即在发送数据之前不需要进行CCA。
又一种实施方式中，针对动态调度的数据传输，基于RRC信令配置一种或多种LBT方式，并通过动态调度指令指示一种或多种LBT方式中的一种。
一示例中，对于通过下行/上行调度指令动态调度或激活的PDSCH/PUSCH传输，网络设备通过RRC层信令给终端配置该终端可能会使用到的一种或者多种LBT方式所配置的LBT方式除了已有协议中的LBT方式外，还可以是“不进行LBT”。然后网络设备在通过下行/上行调度指令中指示该次调度该终端进行下行接收/上行发送时实际使用一种LBT方式，该指示的LBT方式可以是“不进行LBT”。
本公开实施例中，网络设备配置了包括发送数据之前不需要进行CCA的LBT方式，并将该LBT方式的配置信息发送给终端。终端接收到该LBT方式的配置信息，基于该配置信息，确定包括在发送数据之前不需要进行CCA的LBT方式，进而在干扰并不严重等不需要进行CCA场景下不进行LBT，既有效避免干扰又提升传输效率。
图5是根据一示例性实施例示出的一种信道接入方法的流程图，如图5所示，信道接入方法用于终端中，包括以下步骤。
在步骤S21中，接收LBT方式的配置信息。
其中，终端接收到的LBT方式的配置信息可以是由网络设备基于网络部署或者终端上报的LBT推荐方式配置并发送的。
在步骤S22中，基于接收到的配置信息，确定配置的LBT方式，该LBT方式中包括在发送数据之前不需要进行CCA。
一种实施方式中，终端还可以上报LBT推荐方式。图6是根据一示例性实施例示出的一种信道接入方法的流程图，如图6所示，信道接入方法用于终端中，包括以下步骤。
在步骤S31中，上报LBT推荐方式，其中，所述LBT推荐方式中包括在发送数据之前不需要进行CCA。
LBT推荐方式基于干扰测量结果和/或历史数据传输干扰程度确定。
在步骤S32中，接收LBT方式的配置信息。
在步骤S33中，基于接收到的配置信息，确定配置的LBT方式，该LBT方式中包括在发送数据之前不需要进行CCA。
本公开实施例中终端接收LBT的配置信息并基于接收到的配置信息确定配置的LBT方式可以根据终端配置的数据传输类型(动态调度或者半静态配置)采用不同的方式。
一种实施方式中，针对半静态配置的数据传输，基于RRC信令确定配置的LBT方式。
另一种实施方式中，针对半静态配置的数据传输，基于RRC信令确定配置的一种或多种LBT方式，并将DCI激活的所述一种或多种LBT方式中的一种，确定为配置的LBT 方式。
又一种实施方式中，针对动态调度的数据传输，基于RRC信令确定配置的一种或多种LBT方式，并将动态调度指令指示的一种或多种LBT方式中的一种，确定为配置的LBT方式。
本公开实施例中提供的信道接入方法也适用于终端和网络设备进行交互的过程中。一示例中，终端上报包括在发送数据之前不进行CCA的LBT推荐方式。网络设备基于终端上报的LBT推荐方式，配置LBT方式，该配置的LBT方式中包括在发送数据之前不进行CCA。网络设备将LBT方式的配置信息发送给终端。终端接收网络设备发送的LBT方式的配置信息，并基于配置信息确定包括在发送数据之前不进行CCA的LBT方式，在后续进行通信过程中接入信道之前无需进行CCA，直接接入信道。另一示例中，网络设备基于网络部署配置LBT方式，该配置的LBT方式中包括在发送数据之前不进行CCA。网络设备将LBT方式的配置信息发送给终端。终端接收网络设备发送的LBT方式的配置信息，并基于配置信息确定包括在发送数据之前不进行CCA的LBT方式，在后续进行通信过程中接入信道之前无需进行CCA，直接接入信道。
本公开实施例对于终端和网络设备交互实现在非授权频段中实现信道接入过程前的LBT配置的过程可参阅上述实施例相关描述，在此不再赘述。
基于相同的构思，本公开实施例还提供一种信道接入装置。
可以理解的是，本公开实施例提供的信道接入装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开实施例中所公开的各示例的单元及算法步骤，本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的技术方案的范围。
图7是根据一示例性实施例示出的一种信道接入装置框图。参照图7，该信道接入装置100包括处理单元101和发送单元102。
处理单元101，被配置为配置LBT方式，LBT方式中包括在发送数据之前不需要进行CCA。发送单元102，被配置为发送LBT方式的配置信息。
一种实施方式中，处理单元101被配置为采用如下方式配置LBT方式：
响应于基于网络部署确定终端发送数据产生的干扰水平小于检测门限，则配置终端的LBT方式中包括在发送数据之前不需要进行CCA。
另一种实施方式中，处理单元101被配置为采用如下方式配置LBT方式：
基于终端上报的LBT推荐方式，配置终端的LBT方式。其中，LBT推荐方式中包括在发送数据之前不需要进行CCA。
又一种实施方式中，发送单元102被配置为发送LBT方式的配置信息：
针对半静态配置的数据传输，基于RRC信令发送LBT方式的配置信息。
又一种实施方式中，发送单元102被配置为采用如下方式发送LBT方式的配置信息：
针对半静态配置的数据传输，基于RRC信令配置一种或多种LBT方式，并通过DCI激活一种或多种LBT方式中的一种。
又一种实施方式中，发送单元102被配置为采用如下方式发送LBT方式的配置信息：
针对动态调度的数据传输，基于RRC信令配置一种或多种LBT方式，并通过动态调度指令指示一种或多种LBT方式中的一种。
图8是根据一示例性实施例示出的一种信道接入装置框图。参照图8，该信道接入装置200包括接收单元201和处理单元202。
接收单元201，被配置为接收LBT方式的配置信息。处理单元202，被配置为基于配置信息，确定配置的LBT方式，LBT方式中包括在发送数据之前不需要进行CCA。
一种实施方式中，信道接入装置200还包括发送单元203，发送单元203还被配置为：
上报LBT推荐方式，其中，LBT推荐方式中包括在发送数据之前不需要进行CCA。
另一种实施方式中，LBT推荐方式基于干扰测量结果和/或历史数据传输干扰程度确定。
又一种实施方式中，处理单元202被配置为采用如下方式确定配置的LBT方式：
针对半静态配置的数据传输，基于RRC信令确定配置的LBT方式。
又一种实施方式中，处理单元202被配置为采用如下方式确定配置的LBT方式：
针对半静态配置的数据传输，基于RRC信令确定配置的一种或多种LBT方式，并将DCI激活的一种或多种LBT方式中的一种，确定为配置的LBT方式。
又一种实施方式中，处理单元202被配置为采用如下方式确定配置的LBT方式：
针对动态调度的数据传输，基于RRC信令确定配置的一种或多种LBT方式，并将动态调度指令指示的一种或多种LBT方式中的一种，确定为配置的LBT方式。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图9是根据一示例性实施例示出的一种用于信道接入的装置300的框图。例如，装置300可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图9，装置300可以包括以下一个或多个组件：处理组件302，存储器304，电力组件306，多媒体组件308，音频组件310，输入/输出(I/O)接口312，传感器组件314，以及通信组件316。
处理组件302通常控制装置300的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件302可以包括一个或多个处理器320来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件302可以包括一个或多个模块，便于处理组件302和其他组件之间的交互。例如，处理组件302可以包括多媒体模块，以方便多媒体组件308和处理组件302之间的交互。
存储器304被配置为存储各种类型的数据以支持在装置300的操作。这些数据的示例包括用于在装置300上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器304可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电力组件306为装置300的各种组件提供电力。电力组件306可以包括电源管理系统，一个或多个电源，及其他与为装置300生成、管理和分配电力相关联的组件。
多媒体组件308包括在所述装置300和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件308包括一个前置摄像头和/或后置摄像头。当装置300处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件310被配置为输出和/或输入音频信号。例如，音频组件310包括一个麦克风(MIC)，当装置300处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器304或经由通信组件316发送。在一些实施例中，音频组件310还包括一个扬声器，用于输出音频信号。
I/O接口312为处理组件302和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件314包括一个或多个传感器，用于为装置300提供各个方面的状态评估。例如，传感器组件314可以检测到装置300的打开/关闭状态，组件的相对定位，例如所述组件为装置300的显示器和小键盘，传感器组件314还可以检测装置300或装置300一个组件的位置改变，用户与装置300接触的存在或不存在，装置300方位或加速/减速和装置300的温度变化。传感器组件314可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件314还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件314还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件316被配置为便于装置300和其他设备之间有线或无线方式的通信。装置300可以接入根据通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件316经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件316还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可根据射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置300可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器304，上述指令可由装置300的处理器320执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
图10是根据一示例性实施例示出的一种用于信道接入的装置400的框图。例如，装置400可以被提供为网络设备，例如基站等。参照图9，装置400包括处理组件422，其进一步包括一个或多个处理器，以及由存储器432所代表的存储器资源，用于存储可由处理组件422的执行的指令，例如应用程序。存储器432中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件422被配置为执行指令，以执行上述方法。
装置400还可以包括一个电源组件426被配置为执行装置400的电源管理，一个有线或无线网络接口450被配置为将装置400连接到网络，和一个输入输出(I/O)接口458。装置400可以操作根据存储在存储器432的操作系统，例如Windows ServerTM，Mac OS XTM，UnixTM,LinuxTM，FreeBSDTM或类似。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器432，上述指令可由装置400的处理组件422执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
进一步可以理解的是，本公开中“多个”是指两个或两个以上，其它量词与之类似。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
进一步可以理解的是，术语“第一”、“第二”等用于描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开，并不表示特定的顺序或者重要程度。实际上，“第一”、“第二”等表述完全可以互换使用。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。
进一步可以理解的是，本公开实施例中尽管在附图中以特定的顺序描述操作，但是不应将其理解为要求按照所示的特定顺序或是串行顺序来执行这些操作，或是要求执行全部所示的操作以得到期望的结果。在特定环境中，多任务和并行处理可能是有利的。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (22)

  1. 一种信道接入方法，其特征在于，包括：
    配置先听后说信道占用方式，所述先听后说信道占用方式中包括在发送数据之前不需要进行空闲信道检测；
    发送所述先听后说信道占用方式的配置信息。
  2. 根据权利要求1所述的信道接入方法，其特征在于，所述配置先听后说信道占用方式，包括：
    响应于基于网络部署确定终端发送数据产生的干扰水平小于检测门限，则配置所述终端的先听后说信道占用方式中包括在发送数据之前不需要进行空闲信道检测。
  3. 根据权利要求1所述的信道接入方法，其特征在于，所述配置先听后说信道占用方式，包括：
    基于终端上报的先听后说信道占用推荐方式，配置终端的先听后说信道占用方式；
    其中，所述先听后说信道占用推荐方式中包括在发送数据之前不需要进行空闲信道检测。
  4. 根据权利要求1至3中任意一项所述的信道接入方法，其特征在于，发送所述先听后说信道占用方式的配置信息，包括：
    针对半静态配置的数据传输，基于无线资源控制信令发送所述先听后说信道占用方式的配置信息。
  5. 根据权利要求1至3中任意一项所述的信道接入方法，其特征在于，发送所述先听后说信道占用方式的配置信息，包括：
    针对半静态配置的数据传输，基于无线资源控制信令配置一种或多种先听后说信道占用方式，并通过下行控制信令激活所述一种或多种先听后说信道占用方式中的一种。
  6. 根据权利要求1至3中任意一项所述的信道接入方法，其特征在于，发送所述先听后说信道占用方式的配置信息，包括：
    针对动态调度的数据传输，基于无线资源控制信令配置一种或多种先听后说信道占用方式，并通过动态调度指令指示所述一种或多种先听后说信道占用方式中的一种。
  7. 根据权利要求1所述的信道接入方法，其特征在于，所述先听后说信道占用方式中包括在发送数据之前需要进行空闲信道检测。
  8. 一种信道接入方法，其特征在于，包括：
    接收先听后说信道占用方式的配置信息；
    基于所述配置信息，确定配置的先听后说信道占用方式，所述先听后说信道占用方式中包括在发送数据之前不需要进行空闲信道检测。
  9. 根据权利要求8所述的信道接入方法，其特征在于，所述方法还包括：
    上报先听后说信道占用推荐方式，其中，所述先听后说信道占用推荐方式中包括在发送数据之前不需要进行空闲信道检测。
  10. 根据权利要求9所述的信道接入方法，其特征在于，所述先听后说信道占用推荐方式基于干扰测量结果和/或历史数据传输干扰程度确定。
  11. 根据权利要求8所述的信道接入方法，其特征在于，确定配置的先听后说信道占用方式，包括：
    针对半静态配置的数据传输，基于无线资源控制信令确定配置的先听后说信道占用方式。
  12. 根据权利要求8所述的信道接入方法，其特征在于，确定配置的先听后说信道占用方式，包括：
    针对半静态配置的数据传输，基于无线资源控制信令确定配置的一种或多种先听后说信道占用方式，并将下行控制信令激活的所述一种或多种先听后说信道占用方式中的一种，确定为配置的先听后说信道占用方式。
  13. 根据权利要求8所述的信道接入方法，其特征在于，确定配置的先听后说信道占用方式，包括：
    针对动态调度的数据传输，基于无线资源控制信令确定配置的一种或多种先听后说信道占用方式，并将动态调度指令指示的所述一种或多种先听后说信道占用方式中的一种，确定为配置的先听后说信道占用方式。
  14. 一种信道接入装置，其特征在于，包括：
    处理单元，被配置为配置先听后说信道占用方式，所述先听后说信道占用方式中包括在发送数据之前不需要进行空闲信道检测；
    发送单元，被配置为发送所述先听后说信道占用方式的配置信息。
  15. 根据权利要求14所述的信道接入装置，其特征在于，所述处理单元被配置为采用如下方式配置先听后说信道占用方式：
    响应于基于网络部署确定终端发送数据产生的干扰水平小于检测门限，则配置所述终端的先听后说信道占用方式中包括在发送数据之前不需要进行空闲信道检测。
  16. 根据权利要求14所述的信道接入装置，其特征在于，所述处理单元被配置为采用如下方式配置先听后说信道占用方式：
    基于终端上报的先听后说信道占用推荐方式，配置终端的先听后说信道占用方式；
    其中，所述先听后说信道占用推荐方式中包括在发送数据之前不需要进行空闲信道检测。
  17. 一种信道接入装置，其特征在于，包括：
    接收单元，被配置为接收先听后说信道占用方式的配置信息；
    处理单元，被配置为基于所述配置信息，确定配置的先听后说信道占用方式，所述先听后说信道占用方式中包括在发送数据之前不需要进行空闲信道检测。
  18. 根据权利要求17所述的信道接入装置，其特征在于，所述装置还包括发送单元，所述发送单元还被配置为：
    上报先听后说信道占用推荐方式，其中，所述先听后说信道占用推荐方式中包括在发送数据之前不需要进行空闲信道检测。
  19. 一种信道接入装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求1至7中任意一项所述的信道接入方法。
  20. 一种信道接入装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求8至13中任意一项所述的信道接入方法。
  21. 一种非临时性计算机可读存储介质，当所述存储介质中的指令由网络设备的处理器执行时，使得网络设备能够执行权利要求1至7中任意一项所述的信道接入方法。
  22. 一种非临时性计算机可读存储介质，当所述存储介质中的指令由移动终端的处理器执行时，使得移动终端能够执行权利要求8至13中任意一项所述的信道接入方法。
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